1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Copyright 2014 Nexenta Systems, Inc. All rights reserved.
  25  * Copyright (c) 2014, Joyent, Inc. All rights reserved.
  26  * Copyright 2014 OmniTI Computer Consulting, Inc. All rights reserved.
  27  * Copyright (c) 2014, Tegile Systems Inc. All rights reserved.
  28  */
  29 
  30 /*
  31  * Copyright (c) 2000 to 2010, LSI Corporation.
  32  * All rights reserved.
  33  *
  34  * Redistribution and use in source and binary forms of all code within
  35  * this file that is exclusively owned by LSI, with or without
  36  * modification, is permitted provided that, in addition to the CDDL 1.0
  37  * License requirements, the following conditions are met:
  38  *
  39  *    Neither the name of the author nor the names of its contributors may be
  40  *    used to endorse or promote products derived from this software without
  41  *    specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  44  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  45  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  46  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  47  * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  48  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  49  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  50  * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  51  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  52  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  53  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  54  * DAMAGE.
  55  */
  56 
  57 /*
  58  * mptsas - This is a driver based on LSI Logic's MPT2.0/2.5 interface.
  59  *
  60  */
  61 
  62 #if defined(lint) || defined(DEBUG)
  63 #define MPTSAS_DEBUG
  64 #endif
  65 
  66 /*
  67  * standard header files.
  68  */
  69 #include <sys/note.h>
  70 #include <sys/scsi/scsi.h>
  71 #include <sys/pci.h>
  72 #include <sys/file.h>
  73 #include <sys/policy.h>
  74 #include <sys/model.h>
  75 #include <sys/sysevent.h>
  76 #include <sys/sysevent/eventdefs.h>
  77 #include <sys/sysevent/dr.h>
  78 #include <sys/sata/sata_defs.h>
  79 #include <sys/scsi/generic/sas.h>
  80 #include <sys/scsi/impl/scsi_sas.h>
  81 
  82 #pragma pack(1)
  83 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_type.h>
  84 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2.h>
  85 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_cnfg.h>
  86 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_init.h>
  87 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_ioc.h>
  88 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_sas.h>
  89 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_tool.h>
  90 #include <sys/scsi/adapters/mpt_sas/mpi/mpi2_raid.h>
  91 #pragma pack()
  92 
  93 /*
  94  * private header files.
  95  *
  96  */
  97 #include <sys/scsi/impl/scsi_reset_notify.h>
  98 #include <sys/scsi/adapters/mpt_sas/mptsas_var.h>
  99 #include <sys/scsi/adapters/mpt_sas/mptsas_ioctl.h>
 100 #include <sys/scsi/adapters/mpt_sas/mptsas_smhba.h>
 101 #include <sys/scsi/adapters/mpt_sas/mptsas_hash.h>
 102 #include <sys/raidioctl.h>
 103 
 104 #include <sys/fs/dv_node.h>       /* devfs_clean */
 105 
 106 /*
 107  * FMA header files
 108  */
 109 #include <sys/ddifm.h>
 110 #include <sys/fm/protocol.h>
 111 #include <sys/fm/util.h>
 112 #include <sys/fm/io/ddi.h>
 113 
 114 /*
 115  * autoconfiguration data and routines.
 116  */
 117 static int mptsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
 118 static int mptsas_detach(dev_info_t *devi, ddi_detach_cmd_t cmd);
 119 static int mptsas_power(dev_info_t *dip, int component, int level);
 120 
 121 /*
 122  * cb_ops function
 123  */
 124 static int mptsas_ioctl(dev_t dev, int cmd, intptr_t data, int mode,
 125         cred_t *credp, int *rval);
 126 #ifdef __sparc
 127 static int mptsas_reset(dev_info_t *devi, ddi_reset_cmd_t cmd);
 128 #else  /* __sparc */
 129 static int mptsas_quiesce(dev_info_t *devi);
 130 #endif  /* __sparc */
 131 
 132 /*
 133  * Resource initilaization for hardware
 134  */
 135 static void mptsas_setup_cmd_reg(mptsas_t *mpt);
 136 static void mptsas_disable_bus_master(mptsas_t *mpt);
 137 static void mptsas_hba_fini(mptsas_t *mpt);
 138 static void mptsas_cfg_fini(mptsas_t *mptsas_blkp);
 139 static int mptsas_hba_setup(mptsas_t *mpt);
 140 static void mptsas_hba_teardown(mptsas_t *mpt);
 141 static int mptsas_config_space_init(mptsas_t *mpt);
 142 static void mptsas_config_space_fini(mptsas_t *mpt);
 143 static void mptsas_iport_register(mptsas_t *mpt);
 144 static int mptsas_smp_setup(mptsas_t *mpt);
 145 static void mptsas_smp_teardown(mptsas_t *mpt);
 146 static int mptsas_cache_create(mptsas_t *mpt);
 147 static void mptsas_cache_destroy(mptsas_t *mpt);
 148 static int mptsas_alloc_request_frames(mptsas_t *mpt);
 149 static int mptsas_alloc_sense_bufs(mptsas_t *mpt);
 150 static int mptsas_alloc_reply_frames(mptsas_t *mpt);
 151 static int mptsas_alloc_free_queue(mptsas_t *mpt);
 152 static int mptsas_alloc_post_queue(mptsas_t *mpt);
 153 static void mptsas_alloc_reply_args(mptsas_t *mpt);
 154 static int mptsas_alloc_extra_sgl_frame(mptsas_t *mpt, mptsas_cmd_t *cmd);
 155 static void mptsas_free_extra_sgl_frame(mptsas_t *mpt, mptsas_cmd_t *cmd);
 156 static int mptsas_init_chip(mptsas_t *mpt, int first_time);
 157 
 158 /*
 159  * SCSA function prototypes
 160  */
 161 static int mptsas_scsi_start(struct scsi_address *ap, struct scsi_pkt *pkt);
 162 static int mptsas_scsi_reset(struct scsi_address *ap, int level);
 163 static int mptsas_scsi_abort(struct scsi_address *ap, struct scsi_pkt *pkt);
 164 static int mptsas_scsi_getcap(struct scsi_address *ap, char *cap, int tgtonly);
 165 static int mptsas_scsi_setcap(struct scsi_address *ap, char *cap, int value,
 166     int tgtonly);
 167 static void mptsas_scsi_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt);
 168 static struct scsi_pkt *mptsas_scsi_init_pkt(struct scsi_address *ap,
 169     struct scsi_pkt *pkt, struct buf *bp, int cmdlen, int statuslen,
 170         int tgtlen, int flags, int (*callback)(), caddr_t arg);
 171 static void mptsas_scsi_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt);
 172 static void mptsas_scsi_destroy_pkt(struct scsi_address *ap,
 173     struct scsi_pkt *pkt);
 174 static int mptsas_scsi_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
 175     scsi_hba_tran_t *hba_tran, struct scsi_device *sd);
 176 static void mptsas_scsi_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
 177     scsi_hba_tran_t *hba_tran, struct scsi_device *sd);
 178 static int mptsas_scsi_reset_notify(struct scsi_address *ap, int flag,
 179     void (*callback)(caddr_t), caddr_t arg);
 180 static int mptsas_get_name(struct scsi_device *sd, char *name, int len);
 181 static int mptsas_get_bus_addr(struct scsi_device *sd, char *name, int len);
 182 static int mptsas_scsi_quiesce(dev_info_t *dip);
 183 static int mptsas_scsi_unquiesce(dev_info_t *dip);
 184 static int mptsas_bus_config(dev_info_t *pdip, uint_t flags,
 185     ddi_bus_config_op_t op, void *arg, dev_info_t **childp);
 186 
 187 /*
 188  * SMP functions
 189  */
 190 static int mptsas_smp_start(struct smp_pkt *smp_pkt);
 191 
 192 /*
 193  * internal function prototypes.
 194  */
 195 static void mptsas_list_add(mptsas_t *mpt);
 196 static void mptsas_list_del(mptsas_t *mpt);
 197 
 198 static int mptsas_quiesce_bus(mptsas_t *mpt);
 199 static int mptsas_unquiesce_bus(mptsas_t *mpt);
 200 
 201 static int mptsas_alloc_handshake_msg(mptsas_t *mpt, size_t alloc_size);
 202 static void mptsas_free_handshake_msg(mptsas_t *mpt);
 203 
 204 static void mptsas_ncmds_checkdrain(void *arg);
 205 
 206 static int mptsas_prepare_pkt(mptsas_cmd_t *cmd);
 207 static int mptsas_accept_pkt(mptsas_t *mpt, mptsas_cmd_t *sp);
 208 static int mptsas_accept_txwq_and_pkt(mptsas_t *mpt, mptsas_cmd_t *sp);
 209 static void mptsas_accept_tx_waitq(mptsas_t *mpt);
 210 
 211 static int mptsas_do_detach(dev_info_t *dev);
 212 static int mptsas_do_scsi_reset(mptsas_t *mpt, uint16_t devhdl);
 213 static int mptsas_do_scsi_abort(mptsas_t *mpt, int target, int lun,
 214     struct scsi_pkt *pkt);
 215 static int mptsas_scsi_capchk(char *cap, int tgtonly, int *cidxp);
 216 
 217 static void mptsas_handle_qfull(mptsas_t *mpt, mptsas_cmd_t *cmd);
 218 static void mptsas_handle_event(void *args);
 219 static int mptsas_handle_event_sync(void *args);
 220 static void mptsas_handle_dr(void *args);
 221 static void mptsas_handle_topo_change(mptsas_topo_change_list_t *topo_node,
 222     dev_info_t *pdip);
 223 
 224 static void mptsas_restart_cmd(void *);
 225 
 226 static void mptsas_flush_hba(mptsas_t *mpt);
 227 static void mptsas_flush_target(mptsas_t *mpt, ushort_t target, int lun,
 228         uint8_t tasktype);
 229 static void mptsas_set_pkt_reason(mptsas_t *mpt, mptsas_cmd_t *cmd,
 230     uchar_t reason, uint_t stat);
 231 
 232 static uint_t mptsas_intr(caddr_t arg1, caddr_t arg2);
 233 static void mptsas_process_intr(mptsas_t *mpt,
 234     pMpi2ReplyDescriptorsUnion_t reply_desc_union);
 235 static void mptsas_handle_scsi_io_success(mptsas_t *mpt,
 236     pMpi2ReplyDescriptorsUnion_t reply_desc);
 237 static void mptsas_handle_address_reply(mptsas_t *mpt,
 238     pMpi2ReplyDescriptorsUnion_t reply_desc);
 239 static int mptsas_wait_intr(mptsas_t *mpt, int polltime);
 240 static void mptsas_sge_setup(mptsas_t *mpt, mptsas_cmd_t *cmd,
 241     uint32_t *control, pMpi2SCSIIORequest_t frame, ddi_acc_handle_t acc_hdl);
 242 
 243 static void mptsas_watch(void *arg);
 244 static void mptsas_watchsubr(mptsas_t *mpt);
 245 static void mptsas_cmd_timeout(mptsas_t *mpt, mptsas_target_t *ptgt);
 246 
 247 static void mptsas_start_passthru(mptsas_t *mpt, mptsas_cmd_t *cmd);
 248 static int mptsas_do_passthru(mptsas_t *mpt, uint8_t *request, uint8_t *reply,
 249     uint8_t *data, uint32_t request_size, uint32_t reply_size,
 250     uint32_t data_size, uint32_t direction, uint8_t *dataout,
 251     uint32_t dataout_size, short timeout, int mode);
 252 static int mptsas_free_devhdl(mptsas_t *mpt, uint16_t devhdl);
 253 
 254 static uint8_t mptsas_get_fw_diag_buffer_number(mptsas_t *mpt,
 255     uint32_t unique_id);
 256 static void mptsas_start_diag(mptsas_t *mpt, mptsas_cmd_t *cmd);
 257 static int mptsas_post_fw_diag_buffer(mptsas_t *mpt,
 258     mptsas_fw_diagnostic_buffer_t *pBuffer, uint32_t *return_code);
 259 static int mptsas_release_fw_diag_buffer(mptsas_t *mpt,
 260     mptsas_fw_diagnostic_buffer_t *pBuffer, uint32_t *return_code,
 261     uint32_t diag_type);
 262 static int mptsas_diag_register(mptsas_t *mpt,
 263     mptsas_fw_diag_register_t *diag_register, uint32_t *return_code);
 264 static int mptsas_diag_unregister(mptsas_t *mpt,
 265     mptsas_fw_diag_unregister_t *diag_unregister, uint32_t *return_code);
 266 static int mptsas_diag_query(mptsas_t *mpt, mptsas_fw_diag_query_t *diag_query,
 267     uint32_t *return_code);
 268 static int mptsas_diag_read_buffer(mptsas_t *mpt,
 269     mptsas_diag_read_buffer_t *diag_read_buffer, uint8_t *ioctl_buf,
 270     uint32_t *return_code, int ioctl_mode);
 271 static int mptsas_diag_release(mptsas_t *mpt,
 272     mptsas_fw_diag_release_t *diag_release, uint32_t *return_code);
 273 static int mptsas_do_diag_action(mptsas_t *mpt, uint32_t action,
 274     uint8_t *diag_action, uint32_t length, uint32_t *return_code,
 275     int ioctl_mode);
 276 static int mptsas_diag_action(mptsas_t *mpt, mptsas_diag_action_t *data,
 277     int mode);
 278 
 279 static int mptsas_pkt_alloc_extern(mptsas_t *mpt, mptsas_cmd_t *cmd,
 280     int cmdlen, int tgtlen, int statuslen, int kf);
 281 static void mptsas_pkt_destroy_extern(mptsas_t *mpt, mptsas_cmd_t *cmd);
 282 
 283 static int mptsas_kmem_cache_constructor(void *buf, void *cdrarg, int kmflags);
 284 static void mptsas_kmem_cache_destructor(void *buf, void *cdrarg);
 285 
 286 static int mptsas_cache_frames_constructor(void *buf, void *cdrarg,
 287     int kmflags);
 288 static void mptsas_cache_frames_destructor(void *buf, void *cdrarg);
 289 
 290 static void mptsas_check_scsi_io_error(mptsas_t *mpt, pMpi2SCSIIOReply_t reply,
 291     mptsas_cmd_t *cmd);
 292 static void mptsas_check_task_mgt(mptsas_t *mpt,
 293     pMpi2SCSIManagementReply_t reply, mptsas_cmd_t *cmd);
 294 static int mptsas_send_scsi_cmd(mptsas_t *mpt, struct scsi_address *ap,
 295     mptsas_target_t *ptgt, uchar_t *cdb, int cdblen, struct buf *data_bp,
 296     int *resid);
 297 
 298 static int mptsas_alloc_active_slots(mptsas_t *mpt, int flag);
 299 static void mptsas_free_active_slots(mptsas_t *mpt);
 300 static int mptsas_start_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd);
 301 
 302 static void mptsas_restart_hba(mptsas_t *mpt);
 303 static void mptsas_restart_waitq(mptsas_t *mpt);
 304 
 305 static void mptsas_deliver_doneq_thread(mptsas_t *mpt);
 306 static void mptsas_doneq_add(mptsas_t *mpt, mptsas_cmd_t *cmd);
 307 static void mptsas_doneq_mv(mptsas_t *mpt, uint64_t t);
 308 
 309 static mptsas_cmd_t *mptsas_doneq_thread_rm(mptsas_t *mpt, uint64_t t);
 310 static void mptsas_doneq_empty(mptsas_t *mpt);
 311 static void mptsas_doneq_thread(mptsas_doneq_thread_arg_t *arg);
 312 
 313 static mptsas_cmd_t *mptsas_waitq_rm(mptsas_t *mpt);
 314 static void mptsas_waitq_delete(mptsas_t *mpt, mptsas_cmd_t *cmd);
 315 static mptsas_cmd_t *mptsas_tx_waitq_rm(mptsas_t *mpt);
 316 static void mptsas_tx_waitq_delete(mptsas_t *mpt, mptsas_cmd_t *cmd);
 317 
 318 
 319 static void mptsas_start_watch_reset_delay();
 320 static void mptsas_setup_bus_reset_delay(mptsas_t *mpt);
 321 static void mptsas_watch_reset_delay(void *arg);
 322 static int mptsas_watch_reset_delay_subr(mptsas_t *mpt);
 323 
 324 /*
 325  * helper functions
 326  */
 327 static void mptsas_dump_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd);
 328 
 329 static dev_info_t *mptsas_find_child(dev_info_t *pdip, char *name);
 330 static dev_info_t *mptsas_find_child_phy(dev_info_t *pdip, uint8_t phy);
 331 static dev_info_t *mptsas_find_child_addr(dev_info_t *pdip, uint64_t sasaddr,
 332     int lun);
 333 static mdi_pathinfo_t *mptsas_find_path_addr(dev_info_t *pdip, uint64_t sasaddr,
 334     int lun);
 335 static mdi_pathinfo_t *mptsas_find_path_phy(dev_info_t *pdip, uint8_t phy);
 336 static dev_info_t *mptsas_find_smp_child(dev_info_t *pdip, char *str_wwn);
 337 
 338 static int mptsas_parse_address(char *name, uint64_t *wwid, uint8_t *phy,
 339     int *lun);
 340 static int mptsas_parse_smp_name(char *name, uint64_t *wwn);
 341 
 342 static mptsas_target_t *mptsas_phy_to_tgt(mptsas_t *mpt,
 343     mptsas_phymask_t phymask, uint8_t phy);
 344 static mptsas_target_t *mptsas_wwid_to_ptgt(mptsas_t *mpt,
 345     mptsas_phymask_t phymask, uint64_t wwid);
 346 static mptsas_smp_t *mptsas_wwid_to_psmp(mptsas_t *mpt,
 347     mptsas_phymask_t phymask, uint64_t wwid);
 348 
 349 static int mptsas_inquiry(mptsas_t *mpt, mptsas_target_t *ptgt, int lun,
 350     uchar_t page, unsigned char *buf, int len, int *rlen, uchar_t evpd);
 351 
 352 static int mptsas_get_target_device_info(mptsas_t *mpt, uint32_t page_address,
 353     uint16_t *handle, mptsas_target_t **pptgt);
 354 static void mptsas_update_phymask(mptsas_t *mpt);
 355 
 356 static int mptsas_send_sep(mptsas_t *mpt, mptsas_target_t *ptgt,
 357     uint32_t *status, uint8_t cmd);
 358 static dev_info_t *mptsas_get_dip_from_dev(dev_t dev,
 359     mptsas_phymask_t *phymask);
 360 static mptsas_target_t *mptsas_addr_to_ptgt(mptsas_t *mpt, char *addr,
 361     mptsas_phymask_t phymask);
 362 static int mptsas_flush_led_status(mptsas_t *mpt, mptsas_target_t *ptgt);
 363 
 364 
 365 /*
 366  * Enumeration / DR functions
 367  */
 368 static void mptsas_config_all(dev_info_t *pdip);
 369 static int mptsas_config_one_addr(dev_info_t *pdip, uint64_t sasaddr, int lun,
 370     dev_info_t **lundip);
 371 static int mptsas_config_one_phy(dev_info_t *pdip, uint8_t phy, int lun,
 372     dev_info_t **lundip);
 373 
 374 static int mptsas_config_target(dev_info_t *pdip, mptsas_target_t *ptgt);
 375 static int mptsas_offline_target(dev_info_t *pdip, char *name);
 376 
 377 static int mptsas_config_raid(dev_info_t *pdip, uint16_t target,
 378     dev_info_t **dip);
 379 
 380 static int mptsas_config_luns(dev_info_t *pdip, mptsas_target_t *ptgt);
 381 static int mptsas_probe_lun(dev_info_t *pdip, int lun,
 382     dev_info_t **dip, mptsas_target_t *ptgt);
 383 
 384 static int mptsas_create_lun(dev_info_t *pdip, struct scsi_inquiry *sd_inq,
 385     dev_info_t **dip, mptsas_target_t *ptgt, int lun);
 386 
 387 static int mptsas_create_phys_lun(dev_info_t *pdip, struct scsi_inquiry *sd,
 388     char *guid, dev_info_t **dip, mptsas_target_t *ptgt, int lun);
 389 static int mptsas_create_virt_lun(dev_info_t *pdip, struct scsi_inquiry *sd,
 390     char *guid, dev_info_t **dip, mdi_pathinfo_t **pip, mptsas_target_t *ptgt,
 391     int lun);
 392 
 393 static void mptsas_offline_missed_luns(dev_info_t *pdip,
 394     uint16_t *repluns, int lun_cnt, mptsas_target_t *ptgt);
 395 static int mptsas_offline_lun(dev_info_t *pdip, dev_info_t *rdip,
 396     mdi_pathinfo_t *rpip, uint_t flags);
 397 
 398 static int mptsas_config_smp(dev_info_t *pdip, uint64_t sas_wwn,
 399     dev_info_t **smp_dip);
 400 static int mptsas_offline_smp(dev_info_t *pdip, mptsas_smp_t *smp_node,
 401     uint_t flags);
 402 
 403 static int mptsas_event_query(mptsas_t *mpt, mptsas_event_query_t *data,
 404     int mode, int *rval);
 405 static int mptsas_event_enable(mptsas_t *mpt, mptsas_event_enable_t *data,
 406     int mode, int *rval);
 407 static int mptsas_event_report(mptsas_t *mpt, mptsas_event_report_t *data,
 408     int mode, int *rval);
 409 static void mptsas_record_event(void *args);
 410 static int mptsas_reg_access(mptsas_t *mpt, mptsas_reg_access_t *data,
 411     int mode);
 412 
 413 mptsas_target_t *mptsas_tgt_alloc(mptsas_t *, uint16_t, uint64_t,
 414     uint32_t, mptsas_phymask_t, uint8_t);
 415 static mptsas_smp_t *mptsas_smp_alloc(mptsas_t *, mptsas_smp_t *);
 416 static int mptsas_online_smp(dev_info_t *pdip, mptsas_smp_t *smp_node,
 417     dev_info_t **smp_dip);
 418 
 419 /*
 420  * Power management functions
 421  */
 422 static int mptsas_get_pci_cap(mptsas_t *mpt);
 423 static int mptsas_init_pm(mptsas_t *mpt);
 424 
 425 /*
 426  * MPT MSI tunable:
 427  *
 428  * By default MSI is enabled on all supported platforms.
 429  */
 430 boolean_t mptsas_enable_msi = B_TRUE;
 431 boolean_t mptsas_physical_bind_failed_page_83 = B_FALSE;
 432 
 433 /*
 434  * Global switch for use of MPI2.5 FAST PATH.
 435  * We don't really know what FAST PATH actually does, so if it is suspected
 436  * to cause problems it can be turned off by setting this variable to B_FALSE.
 437  */
 438 boolean_t mptsas_use_fastpath = B_TRUE;
 439 
 440 static int mptsas_register_intrs(mptsas_t *);
 441 static void mptsas_unregister_intrs(mptsas_t *);
 442 static int mptsas_add_intrs(mptsas_t *, int);
 443 static void mptsas_rem_intrs(mptsas_t *);
 444 
 445 /*
 446  * FMA Prototypes
 447  */
 448 static void mptsas_fm_init(mptsas_t *mpt);
 449 static void mptsas_fm_fini(mptsas_t *mpt);
 450 static int mptsas_fm_error_cb(dev_info_t *, ddi_fm_error_t *, const void *);
 451 
 452 extern pri_t minclsyspri, maxclsyspri;
 453 
 454 /*
 455  * This device is created by the SCSI pseudo nexus driver (SCSI vHCI).  It is
 456  * under this device that the paths to a physical device are created when
 457  * MPxIO is used.
 458  */
 459 extern dev_info_t       *scsi_vhci_dip;
 460 
 461 /*
 462  * Tunable timeout value for Inquiry VPD page 0x83
 463  * By default the value is 30 seconds.
 464  */
 465 int mptsas_inq83_retry_timeout = 30;
 466 
 467 /*
 468  * This is used to allocate memory for message frame storage, not for
 469  * data I/O DMA. All message frames must be stored in the first 4G of
 470  * physical memory.
 471  */
 472 ddi_dma_attr_t mptsas_dma_attrs = {
 473         DMA_ATTR_V0,    /* attribute layout version             */
 474         0x0ull,         /* address low - should be 0 (longlong) */
 475         0xffffffffull,  /* address high - 32-bit max range      */
 476         0x00ffffffull,  /* count max - max DMA object size      */
 477         4,              /* allocation alignment requirements    */
 478         0x78,           /* burstsizes - binary encoded values   */
 479         1,              /* minxfer - gran. of DMA engine        */
 480         0x00ffffffull,  /* maxxfer - gran. of DMA engine        */
 481         0xffffffffull,  /* max segment size (DMA boundary)      */
 482         MPTSAS_MAX_DMA_SEGS, /* scatter/gather list length      */
 483         512,            /* granularity - device transfer size   */
 484         0               /* flags, set to 0                      */
 485 };
 486 
 487 /*
 488  * This is used for data I/O DMA memory allocation. (full 64-bit DMA
 489  * physical addresses are supported.)
 490  */
 491 ddi_dma_attr_t mptsas_dma_attrs64 = {
 492         DMA_ATTR_V0,    /* attribute layout version             */
 493         0x0ull,         /* address low - should be 0 (longlong) */
 494         0xffffffffffffffffull,  /* address high - 64-bit max    */
 495         0x00ffffffull,  /* count max - max DMA object size      */
 496         4,              /* allocation alignment requirements    */
 497         0x78,           /* burstsizes - binary encoded values   */
 498         1,              /* minxfer - gran. of DMA engine        */
 499         0x00ffffffull,  /* maxxfer - gran. of DMA engine        */
 500         0xffffffffull,  /* max segment size (DMA boundary)      */
 501         MPTSAS_MAX_DMA_SEGS, /* scatter/gather list length      */
 502         512,            /* granularity - device transfer size   */
 503         0               /* flags, set to 0 */
 504 };
 505 
 506 ddi_device_acc_attr_t mptsas_dev_attr = {
 507         DDI_DEVICE_ATTR_V1,
 508         DDI_STRUCTURE_LE_ACC,
 509         DDI_STRICTORDER_ACC,
 510         DDI_DEFAULT_ACC
 511 };
 512 
 513 static struct cb_ops mptsas_cb_ops = {
 514         scsi_hba_open,          /* open */
 515         scsi_hba_close,         /* close */
 516         nodev,                  /* strategy */
 517         nodev,                  /* print */
 518         nodev,                  /* dump */
 519         nodev,                  /* read */
 520         nodev,                  /* write */
 521         mptsas_ioctl,           /* ioctl */
 522         nodev,                  /* devmap */
 523         nodev,                  /* mmap */
 524         nodev,                  /* segmap */
 525         nochpoll,               /* chpoll */
 526         ddi_prop_op,            /* cb_prop_op */
 527         NULL,                   /* streamtab */
 528         D_MP,                   /* cb_flag */
 529         CB_REV,                 /* rev */
 530         nodev,                  /* aread */
 531         nodev                   /* awrite */
 532 };
 533 
 534 static struct dev_ops mptsas_ops = {
 535         DEVO_REV,               /* devo_rev, */
 536         0,                      /* refcnt  */
 537         ddi_no_info,            /* info */
 538         nulldev,                /* identify */
 539         nulldev,                /* probe */
 540         mptsas_attach,          /* attach */
 541         mptsas_detach,          /* detach */
 542 #ifdef  __sparc
 543         mptsas_reset,
 544 #else
 545         nodev,                  /* reset */
 546 #endif  /* __sparc */
 547         &mptsas_cb_ops,             /* driver operations */
 548         NULL,                   /* bus operations */
 549         mptsas_power,           /* power management */
 550 #ifdef  __sparc
 551         ddi_quiesce_not_needed
 552 #else
 553         mptsas_quiesce          /* quiesce */
 554 #endif  /* __sparc */
 555 };
 556 
 557 
 558 #define MPTSAS_MOD_STRING "MPTSAS HBA Driver 00.00.00.24"
 559 
 560 static struct modldrv modldrv = {
 561         &mod_driverops,     /* Type of module. This one is a driver */
 562         MPTSAS_MOD_STRING, /* Name of the module. */
 563         &mptsas_ops,        /* driver ops */
 564 };
 565 
 566 static struct modlinkage modlinkage = {
 567         MODREV_1, &modldrv, NULL
 568 };
 569 #define TARGET_PROP     "target"
 570 #define LUN_PROP        "lun"
 571 #define LUN64_PROP      "lun64"
 572 #define SAS_PROP        "sas-mpt"
 573 #define MDI_GUID        "wwn"
 574 #define NDI_GUID        "guid"
 575 #define MPTSAS_DEV_GONE "mptsas_dev_gone"
 576 
 577 /*
 578  * Local static data
 579  */
 580 #if defined(MPTSAS_DEBUG)
 581 /*
 582  * Flags to indicate which debug messages are to be printed and which go to the
 583  * debug log ring buffer. Default is to not print anything, and to log
 584  * everything except the watchsubr() output which normally happens every second.
 585  */
 586 uint32_t mptsas_debugprt_flags = 0x0;
 587 uint32_t mptsas_debuglog_flags = ~(1U << 30);
 588 #endif  /* defined(MPTSAS_DEBUG) */
 589 uint32_t mptsas_debug_resets = 0;
 590 
 591 static kmutex_t         mptsas_global_mutex;
 592 static void             *mptsas_state;          /* soft state ptr */
 593 static krwlock_t        mptsas_global_rwlock;
 594 
 595 static kmutex_t         mptsas_log_mutex;
 596 static char             mptsas_log_buf[256];
 597 _NOTE(MUTEX_PROTECTS_DATA(mptsas_log_mutex, mptsas_log_buf))
 598 
 599 static mptsas_t *mptsas_head, *mptsas_tail;
 600 static clock_t mptsas_scsi_watchdog_tick;
 601 static clock_t mptsas_tick;
 602 static timeout_id_t mptsas_reset_watch;
 603 static timeout_id_t mptsas_timeout_id;
 604 static int mptsas_timeouts_enabled = 0;
 605 
 606 /*
 607  * Default length for extended auto request sense buffers.
 608  * All sense buffers need to be under the same alloc because there
 609  * is only one common top 32bits (of 64bits) address register.
 610  * Most requests only require 32 bytes, but some request >256.
 611  * We use rmalloc()/rmfree() on this additional memory to manage the
 612  * "extended" requests.
 613  */
 614 int mptsas_extreq_sense_bufsize = 256*64;
 615 
 616 /*
 617  * We believe that all software resrictions of having to run with DMA
 618  * attributes to limit allocation to the first 4G are removed.
 619  * However, this flag remains to enable quick switchback should suspicious
 620  * problems emerge.
 621  * Note that scsi_alloc_consistent_buf() does still adhere to allocating
 622  * 32 bit addressable memory, but we can cope if that is changed now.
 623  */
 624 int mptsas_use_64bit_msgaddr = 1;
 625 
 626 /*
 627  * warlock directives
 628  */
 629 _NOTE(SCHEME_PROTECTS_DATA("unique per pkt", scsi_pkt \
 630         mptsas_cmd NcrTableIndirect buf scsi_cdb scsi_status))
 631 _NOTE(SCHEME_PROTECTS_DATA("unique per pkt", smp_pkt))
 632 _NOTE(SCHEME_PROTECTS_DATA("stable data", scsi_device scsi_address))
 633 _NOTE(SCHEME_PROTECTS_DATA("No Mutex Needed", mptsas_tgt_private))
 634 _NOTE(SCHEME_PROTECTS_DATA("No Mutex Needed", scsi_hba_tran::tran_tgt_private))
 635 
 636 /*
 637  * SM - HBA statics
 638  */
 639 char    *mptsas_driver_rev = MPTSAS_MOD_STRING;
 640 
 641 #ifdef MPTSAS_DEBUG
 642 void debug_enter(char *);
 643 #endif
 644 
 645 /*
 646  * Notes:
 647  *      - scsi_hba_init(9F) initializes SCSI HBA modules
 648  *      - must call scsi_hba_fini(9F) if modload() fails
 649  */
 650 int
 651 _init(void)
 652 {
 653         int status;
 654         /* CONSTCOND */
 655         ASSERT(NO_COMPETING_THREADS);
 656 
 657         NDBG0(("_init"));
 658 
 659         status = ddi_soft_state_init(&mptsas_state, MPTSAS_SIZE,
 660             MPTSAS_INITIAL_SOFT_SPACE);
 661         if (status != 0) {
 662                 return (status);
 663         }
 664 
 665         if ((status = scsi_hba_init(&modlinkage)) != 0) {
 666                 ddi_soft_state_fini(&mptsas_state);
 667                 return (status);
 668         }
 669 
 670         mutex_init(&mptsas_global_mutex, NULL, MUTEX_DRIVER, NULL);
 671         rw_init(&mptsas_global_rwlock, NULL, RW_DRIVER, NULL);
 672         mutex_init(&mptsas_log_mutex, NULL, MUTEX_DRIVER, NULL);
 673 
 674         if ((status = mod_install(&modlinkage)) != 0) {
 675                 mutex_destroy(&mptsas_log_mutex);
 676                 rw_destroy(&mptsas_global_rwlock);
 677                 mutex_destroy(&mptsas_global_mutex);
 678                 ddi_soft_state_fini(&mptsas_state);
 679                 scsi_hba_fini(&modlinkage);
 680         }
 681 
 682         return (status);
 683 }
 684 
 685 /*
 686  * Notes:
 687  *      - scsi_hba_fini(9F) uninitializes SCSI HBA modules
 688  */
 689 int
 690 _fini(void)
 691 {
 692         int     status;
 693         /* CONSTCOND */
 694         ASSERT(NO_COMPETING_THREADS);
 695 
 696         NDBG0(("_fini"));
 697 
 698         if ((status = mod_remove(&modlinkage)) == 0) {
 699                 ddi_soft_state_fini(&mptsas_state);
 700                 scsi_hba_fini(&modlinkage);
 701                 mutex_destroy(&mptsas_global_mutex);
 702                 rw_destroy(&mptsas_global_rwlock);
 703                 mutex_destroy(&mptsas_log_mutex);
 704         }
 705         return (status);
 706 }
 707 
 708 /*
 709  * The loadable-module _info(9E) entry point
 710  */
 711 int
 712 _info(struct modinfo *modinfop)
 713 {
 714         /* CONSTCOND */
 715         ASSERT(NO_COMPETING_THREADS);
 716         NDBG0(("mptsas _info"));
 717 
 718         return (mod_info(&modlinkage, modinfop));
 719 }
 720 
 721 static int
 722 mptsas_target_eval_devhdl(const void *op, void *arg)
 723 {
 724         uint16_t dh = *(uint16_t *)arg;
 725         const mptsas_target_t *tp = op;
 726 
 727         return ((int)tp->m_devhdl - (int)dh);
 728 }
 729 
 730 static int
 731 mptsas_target_eval_slot(const void *op, void *arg)
 732 {
 733         mptsas_led_control_t *lcp = arg;
 734         const mptsas_target_t *tp = op;
 735 
 736         if (tp->m_enclosure != lcp->Enclosure)
 737                 return ((int)tp->m_enclosure - (int)lcp->Enclosure);
 738 
 739         return ((int)tp->m_slot_num - (int)lcp->Slot);
 740 }
 741 
 742 static int
 743 mptsas_target_eval_nowwn(const void *op, void *arg)
 744 {
 745         uint8_t phy = *(uint8_t *)arg;
 746         const mptsas_target_t *tp = op;
 747 
 748         if (tp->m_addr.mta_wwn != 0)
 749                 return (-1);
 750 
 751         return ((int)tp->m_phynum - (int)phy);
 752 }
 753 
 754 static int
 755 mptsas_smp_eval_devhdl(const void *op, void *arg)
 756 {
 757         uint16_t dh = *(uint16_t *)arg;
 758         const mptsas_smp_t *sp = op;
 759 
 760         return ((int)sp->m_devhdl - (int)dh);
 761 }
 762 
 763 static uint64_t
 764 mptsas_target_addr_hash(const void *tp)
 765 {
 766         const mptsas_target_addr_t *tap = tp;
 767 
 768         return ((tap->mta_wwn & 0xffffffffffffULL) |
 769             ((uint64_t)tap->mta_phymask << 48));
 770 }
 771 
 772 static int
 773 mptsas_target_addr_cmp(const void *a, const void *b)
 774 {
 775         const mptsas_target_addr_t *aap = a;
 776         const mptsas_target_addr_t *bap = b;
 777 
 778         if (aap->mta_wwn < bap->mta_wwn)
 779                 return (-1);
 780         if (aap->mta_wwn > bap->mta_wwn)
 781                 return (1);
 782         return ((int)bap->mta_phymask - (int)aap->mta_phymask);
 783 }
 784 
 785 static void
 786 mptsas_target_free(void *op)
 787 {
 788         kmem_free(op, sizeof (mptsas_target_t));
 789 }
 790 
 791 static void
 792 mptsas_smp_free(void *op)
 793 {
 794         kmem_free(op, sizeof (mptsas_smp_t));
 795 }
 796 
 797 static void
 798 mptsas_destroy_hashes(mptsas_t *mpt)
 799 {
 800         mptsas_target_t *tp;
 801         mptsas_smp_t *sp;
 802 
 803         for (tp = refhash_first(mpt->m_targets); tp != NULL;
 804             tp = refhash_next(mpt->m_targets, tp)) {
 805                 refhash_remove(mpt->m_targets, tp);
 806         }
 807         for (sp = refhash_first(mpt->m_smp_targets); sp != NULL;
 808             sp = refhash_next(mpt->m_smp_targets, sp)) {
 809                 refhash_remove(mpt->m_smp_targets, sp);
 810         }
 811         refhash_destroy(mpt->m_targets);
 812         refhash_destroy(mpt->m_smp_targets);
 813         mpt->m_targets = NULL;
 814         mpt->m_smp_targets = NULL;
 815 }
 816 
 817 static int
 818 mptsas_iport_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
 819 {
 820         dev_info_t              *pdip;
 821         mptsas_t                *mpt;
 822         scsi_hba_tran_t         *hba_tran;
 823         char                    *iport = NULL;
 824         char                    phymask[MPTSAS_MAX_PHYS];
 825         mptsas_phymask_t        phy_mask = 0;
 826         int                     dynamic_port = 0;
 827         uint32_t                page_address;
 828         char                    initiator_wwnstr[MPTSAS_WWN_STRLEN];
 829         int                     rval = DDI_FAILURE;
 830         int                     i = 0;
 831         uint8_t                 numphys = 0;
 832         uint8_t                 phy_id;
 833         uint8_t                 phy_port = 0;
 834         uint16_t                attached_devhdl = 0;
 835         uint32_t                dev_info;
 836         uint64_t                attached_sas_wwn;
 837         uint16_t                dev_hdl;
 838         uint16_t                pdev_hdl;
 839         uint16_t                bay_num, enclosure, io_flags;
 840         char                    attached_wwnstr[MPTSAS_WWN_STRLEN];
 841 
 842         /* CONSTCOND */
 843         ASSERT(NO_COMPETING_THREADS);
 844 
 845         switch (cmd) {
 846         case DDI_ATTACH:
 847                 break;
 848 
 849         case DDI_RESUME:
 850                 /*
 851                  * If this a scsi-iport node, nothing to do here.
 852                  */
 853                 return (DDI_SUCCESS);
 854 
 855         default:
 856                 return (DDI_FAILURE);
 857         }
 858 
 859         pdip = ddi_get_parent(dip);
 860 
 861         if ((hba_tran = ndi_flavorv_get(pdip, SCSA_FLAVOR_SCSI_DEVICE)) ==
 862             NULL) {
 863                 cmn_err(CE_WARN, "Failed attach iport because fail to "
 864                     "get tran vector for the HBA node");
 865                 return (DDI_FAILURE);
 866         }
 867 
 868         mpt = TRAN2MPT(hba_tran);
 869         ASSERT(mpt != NULL);
 870         if (mpt == NULL)
 871                 return (DDI_FAILURE);
 872 
 873         if ((hba_tran = ndi_flavorv_get(dip, SCSA_FLAVOR_SCSI_DEVICE)) ==
 874             NULL) {
 875                 mptsas_log(mpt, CE_WARN, "Failed attach iport because fail to "
 876                     "get tran vector for the iport node");
 877                 return (DDI_FAILURE);
 878         }
 879 
 880         /*
 881          * Overwrite parent's tran_hba_private to iport's tran vector
 882          */
 883         hba_tran->tran_hba_private = mpt;
 884 
 885         ddi_report_dev(dip);
 886 
 887         /*
 888          * Get SAS address for initiator port according dev_handle
 889          */
 890         iport = ddi_get_name_addr(dip);
 891         if (iport && strncmp(iport, "v0", 2) == 0) {
 892                 if (ddi_prop_update_int(DDI_DEV_T_NONE, dip,
 893                     MPTSAS_VIRTUAL_PORT, 1) !=
 894                     DDI_PROP_SUCCESS) {
 895                         (void) ddi_prop_remove(DDI_DEV_T_NONE, dip,
 896                             MPTSAS_VIRTUAL_PORT);
 897                         mptsas_log(mpt, CE_WARN, "mptsas virtual port "
 898                             "prop update failed");
 899                         return (DDI_FAILURE);
 900                 }
 901                 return (DDI_SUCCESS);
 902         }
 903 
 904         mutex_enter(&mpt->m_mutex);
 905         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
 906                 bzero(phymask, sizeof (phymask));
 907                 (void) sprintf(phymask,
 908                     "%x", mpt->m_phy_info[i].phy_mask);
 909                 if (strcmp(phymask, iport) == 0) {
 910                         break;
 911                 }
 912         }
 913 
 914         if (i == MPTSAS_MAX_PHYS) {
 915                 mptsas_log(mpt, CE_WARN, "Failed attach port %s because port"
 916                     "seems not exist", iport);
 917                 mutex_exit(&mpt->m_mutex);
 918                 return (DDI_FAILURE);
 919         }
 920 
 921         phy_mask = mpt->m_phy_info[i].phy_mask;
 922 
 923         if (mpt->m_phy_info[i].port_flags & AUTO_PORT_CONFIGURATION)
 924                 dynamic_port = 1;
 925         else
 926                 dynamic_port = 0;
 927 
 928         /*
 929          * Update PHY info for smhba
 930          */
 931         if (mptsas_smhba_phy_init(mpt)) {
 932                 mutex_exit(&mpt->m_mutex);
 933                 mptsas_log(mpt, CE_WARN, "mptsas phy update "
 934                     "failed");
 935                 return (DDI_FAILURE);
 936         }
 937 
 938         mutex_exit(&mpt->m_mutex);
 939 
 940         numphys = 0;
 941         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
 942                 if ((phy_mask >> i) & 0x01) {
 943                         numphys++;
 944                 }
 945         }
 946 
 947         bzero(initiator_wwnstr, sizeof (initiator_wwnstr));
 948         (void) sprintf(initiator_wwnstr, "w%016"PRIx64,
 949             mpt->un.m_base_wwid);
 950 
 951         if (ddi_prop_update_string(DDI_DEV_T_NONE, dip,
 952             SCSI_ADDR_PROP_INITIATOR_PORT, initiator_wwnstr) !=
 953             DDI_PROP_SUCCESS) {
 954                 (void) ddi_prop_remove(DDI_DEV_T_NONE,
 955                     dip, SCSI_ADDR_PROP_INITIATOR_PORT);
 956                 mptsas_log(mpt, CE_WARN, "mptsas Initiator port "
 957                     "prop update failed");
 958                 return (DDI_FAILURE);
 959         }
 960         if (ddi_prop_update_int(DDI_DEV_T_NONE, dip,
 961             MPTSAS_NUM_PHYS, numphys) !=
 962             DDI_PROP_SUCCESS) {
 963                 (void) ddi_prop_remove(DDI_DEV_T_NONE, dip, MPTSAS_NUM_PHYS);
 964                 return (DDI_FAILURE);
 965         }
 966 
 967         if (ddi_prop_update_int(DDI_DEV_T_NONE, dip,
 968             "phymask", phy_mask) !=
 969             DDI_PROP_SUCCESS) {
 970                 (void) ddi_prop_remove(DDI_DEV_T_NONE, dip, "phymask");
 971                 mptsas_log(mpt, CE_WARN, "mptsas phy mask "
 972                     "prop update failed");
 973                 return (DDI_FAILURE);
 974         }
 975 
 976         if (ddi_prop_update_int(DDI_DEV_T_NONE, dip,
 977             "dynamic-port", dynamic_port) !=
 978             DDI_PROP_SUCCESS) {
 979                 (void) ddi_prop_remove(DDI_DEV_T_NONE, dip, "dynamic-port");
 980                 mptsas_log(mpt, CE_WARN, "mptsas dynamic port "
 981                     "prop update failed");
 982                 return (DDI_FAILURE);
 983         }
 984         if (ddi_prop_update_int(DDI_DEV_T_NONE, dip,
 985             MPTSAS_VIRTUAL_PORT, 0) !=
 986             DDI_PROP_SUCCESS) {
 987                 (void) ddi_prop_remove(DDI_DEV_T_NONE, dip,
 988                     MPTSAS_VIRTUAL_PORT);
 989                 mptsas_log(mpt, CE_WARN, "mptsas virtual port "
 990                     "prop update failed");
 991                 return (DDI_FAILURE);
 992         }
 993         mptsas_smhba_set_all_phy_props(mpt, dip, numphys, phy_mask,
 994             &attached_devhdl);
 995 
 996         mutex_enter(&mpt->m_mutex);
 997         page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
 998             MPI2_SAS_DEVICE_PGAD_FORM_MASK) | (uint32_t)attached_devhdl;
 999         rval = mptsas_get_sas_device_page0(mpt, page_address, &dev_hdl,
1000             &attached_sas_wwn, &dev_info, &phy_port, &phy_id,
1001             &pdev_hdl, &bay_num, &enclosure, &io_flags);
1002         if (rval != DDI_SUCCESS) {
1003                 mptsas_log(mpt, CE_WARN,
1004                     "Failed to get device page0 for handle:%d",
1005                     attached_devhdl);
1006                 mutex_exit(&mpt->m_mutex);
1007                 return (DDI_FAILURE);
1008         }
1009 
1010         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
1011                 bzero(phymask, sizeof (phymask));
1012                 (void) sprintf(phymask, "%x", mpt->m_phy_info[i].phy_mask);
1013                 if (strcmp(phymask, iport) == 0) {
1014                         (void) sprintf(&mpt->m_phy_info[i].smhba_info.path[0],
1015                             "%x",
1016                             mpt->m_phy_info[i].phy_mask);
1017                 }
1018         }
1019         mutex_exit(&mpt->m_mutex);
1020 
1021         bzero(attached_wwnstr, sizeof (attached_wwnstr));
1022         (void) sprintf(attached_wwnstr, "w%016"PRIx64,
1023             attached_sas_wwn);
1024         if (ddi_prop_update_string(DDI_DEV_T_NONE, dip,
1025             SCSI_ADDR_PROP_ATTACHED_PORT, attached_wwnstr) !=
1026             DDI_PROP_SUCCESS) {
1027                 (void) ddi_prop_remove(DDI_DEV_T_NONE,
1028                     dip, SCSI_ADDR_PROP_ATTACHED_PORT);
1029                 return (DDI_FAILURE);
1030         }
1031 
1032         /* Create kstats for each phy on this iport */
1033 
1034         mptsas_create_phy_stats(mpt, iport, dip);
1035 
1036         /*
1037          * register sas hba iport with mdi (MPxIO/vhci)
1038          */
1039         if (mdi_phci_register(MDI_HCI_CLASS_SCSI,
1040             dip, 0) == MDI_SUCCESS) {
1041                 mpt->m_mpxio_enable = TRUE;
1042         }
1043         return (DDI_SUCCESS);
1044 }
1045 
1046 /*
1047  * Notes:
1048  *      Set up all device state and allocate data structures,
1049  *      mutexes, condition variables, etc. for device operation.
1050  *      Add interrupts needed.
1051  *      Return DDI_SUCCESS if device is ready, else return DDI_FAILURE.
1052  */
1053 static int
1054 mptsas_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
1055 {
1056         mptsas_t                *mpt = NULL;
1057         int                     instance, i, j;
1058         int                     doneq_thread_num;
1059         char                    intr_added = 0;
1060         char                    map_setup = 0;
1061         char                    config_setup = 0;
1062         char                    hba_attach_setup = 0;
1063         char                    smp_attach_setup = 0;
1064         char                    mutex_init_done = 0;
1065         char                    event_taskq_create = 0;
1066         char                    dr_taskq_create = 0;
1067         char                    doneq_thread_create = 0;
1068         char                    added_watchdog = 0;
1069         scsi_hba_tran_t         *hba_tran;
1070         uint_t                  mem_bar = MEM_SPACE;
1071         int                     rval = DDI_FAILURE;
1072 
1073         /* CONSTCOND */
1074         ASSERT(NO_COMPETING_THREADS);
1075 
1076         if (scsi_hba_iport_unit_address(dip)) {
1077                 return (mptsas_iport_attach(dip, cmd));
1078         }
1079 
1080         switch (cmd) {
1081         case DDI_ATTACH:
1082                 break;
1083 
1084         case DDI_RESUME:
1085                 if ((hba_tran = ddi_get_driver_private(dip)) == NULL)
1086                         return (DDI_FAILURE);
1087 
1088                 mpt = TRAN2MPT(hba_tran);
1089 
1090                 if (!mpt) {
1091                         return (DDI_FAILURE);
1092                 }
1093 
1094                 /*
1095                  * Reset hardware and softc to "no outstanding commands"
1096                  * Note that a check condition can result on first command
1097                  * to a target.
1098                  */
1099                 mutex_enter(&mpt->m_mutex);
1100 
1101                 /*
1102                  * raise power.
1103                  */
1104                 if (mpt->m_options & MPTSAS_OPT_PM) {
1105                         mutex_exit(&mpt->m_mutex);
1106                         (void) pm_busy_component(dip, 0);
1107                         rval = pm_power_has_changed(dip, 0, PM_LEVEL_D0);
1108                         if (rval == DDI_SUCCESS) {
1109                                 mutex_enter(&mpt->m_mutex);
1110                         } else {
1111                                 /*
1112                                  * The pm_raise_power() call above failed,
1113                                  * and that can only occur if we were unable
1114                                  * to reset the hardware.  This is probably
1115                                  * due to unhealty hardware, and because
1116                                  * important filesystems(such as the root
1117                                  * filesystem) could be on the attached disks,
1118                                  * it would not be a good idea to continue,
1119                                  * as we won't be entirely certain we are
1120                                  * writing correct data.  So we panic() here
1121                                  * to not only prevent possible data corruption,
1122                                  * but to give developers or end users a hope
1123                                  * of identifying and correcting any problems.
1124                                  */
1125                                 fm_panic("mptsas could not reset hardware "
1126                                     "during resume");
1127                         }
1128                 }
1129 
1130                 mpt->m_suspended = 0;
1131 
1132                 /*
1133                  * Reinitialize ioc
1134                  */
1135                 mpt->m_softstate |= MPTSAS_SS_MSG_UNIT_RESET;
1136                 if (mptsas_init_chip(mpt, FALSE) == DDI_FAILURE) {
1137                         mutex_exit(&mpt->m_mutex);
1138                         if (mpt->m_options & MPTSAS_OPT_PM) {
1139                                 (void) pm_idle_component(dip, 0);
1140                         }
1141                         fm_panic("mptsas init chip fail during resume");
1142                 }
1143                 /*
1144                  * mptsas_update_driver_data needs interrupts so enable them
1145                  * first.
1146                  */
1147                 MPTSAS_ENABLE_INTR(mpt);
1148                 mptsas_update_driver_data(mpt);
1149 
1150                 /* start requests, if possible */
1151                 mptsas_restart_hba(mpt);
1152 
1153                 mutex_exit(&mpt->m_mutex);
1154 
1155                 /*
1156                  * Restart watch thread
1157                  */
1158                 mutex_enter(&mptsas_global_mutex);
1159                 if (mptsas_timeout_id == 0) {
1160                         mptsas_timeout_id = timeout(mptsas_watch, NULL,
1161                             mptsas_tick);
1162                         mptsas_timeouts_enabled = 1;
1163                 }
1164                 mutex_exit(&mptsas_global_mutex);
1165 
1166                 /* report idle status to pm framework */
1167                 if (mpt->m_options & MPTSAS_OPT_PM) {
1168                         (void) pm_idle_component(dip, 0);
1169                 }
1170 
1171                 return (DDI_SUCCESS);
1172 
1173         default:
1174                 return (DDI_FAILURE);
1175 
1176         }
1177 
1178         instance = ddi_get_instance(dip);
1179 
1180         /*
1181          * Allocate softc information.
1182          */
1183         if (ddi_soft_state_zalloc(mptsas_state, instance) != DDI_SUCCESS) {
1184                 mptsas_log(NULL, CE_WARN,
1185                     "mptsas%d: cannot allocate soft state", instance);
1186                 goto fail;
1187         }
1188 
1189         mpt = ddi_get_soft_state(mptsas_state, instance);
1190 
1191         if (mpt == NULL) {
1192                 mptsas_log(NULL, CE_WARN,
1193                     "mptsas%d: cannot get soft state", instance);
1194                 goto fail;
1195         }
1196 
1197         /* Indicate that we are 'sizeof (scsi_*(9S))' clean. */
1198         scsi_size_clean(dip);
1199 
1200         mpt->m_dip = dip;
1201         mpt->m_instance = instance;
1202 
1203         /* Make a per-instance copy of the structures */
1204         mpt->m_io_dma_attr = mptsas_dma_attrs64;
1205         if (mptsas_use_64bit_msgaddr) {
1206                 mpt->m_msg_dma_attr = mptsas_dma_attrs64;
1207         } else {
1208                 mpt->m_msg_dma_attr = mptsas_dma_attrs;
1209         }
1210         mpt->m_reg_acc_attr = mptsas_dev_attr;
1211         mpt->m_dev_acc_attr = mptsas_dev_attr;
1212 
1213         /*
1214          * Size of individual request sense buffer
1215          */
1216         mpt->m_req_sense_size = EXTCMDS_STATUS_SIZE;
1217 
1218         /*
1219          * Initialize FMA
1220          */
1221         mpt->m_fm_capabilities = ddi_getprop(DDI_DEV_T_ANY, mpt->m_dip,
1222             DDI_PROP_CANSLEEP | DDI_PROP_DONTPASS, "fm-capable",
1223             DDI_FM_EREPORT_CAPABLE | DDI_FM_ACCCHK_CAPABLE |
1224             DDI_FM_DMACHK_CAPABLE | DDI_FM_ERRCB_CAPABLE);
1225 
1226         mptsas_fm_init(mpt);
1227 
1228         if (mptsas_alloc_handshake_msg(mpt,
1229             sizeof (Mpi2SCSITaskManagementRequest_t)) == DDI_FAILURE) {
1230                 mptsas_log(mpt, CE_WARN, "cannot initialize handshake msg.");
1231                 goto fail;
1232         }
1233 
1234         /*
1235          * Setup configuration space
1236          */
1237         if (mptsas_config_space_init(mpt) == FALSE) {
1238                 mptsas_log(mpt, CE_WARN, "mptsas_config_space_init failed");
1239                 goto fail;
1240         }
1241         config_setup++;
1242 
1243         if (ddi_regs_map_setup(dip, mem_bar, (caddr_t *)&mpt->m_reg,
1244             0, 0, &mpt->m_reg_acc_attr, &mpt->m_datap) != DDI_SUCCESS) {
1245                 mptsas_log(mpt, CE_WARN, "map setup failed");
1246                 goto fail;
1247         }
1248         map_setup++;
1249 
1250         /*
1251          * A taskq is created for dealing with the event handler
1252          */
1253         if ((mpt->m_event_taskq = ddi_taskq_create(dip, "mptsas_event_taskq",
1254             1, TASKQ_DEFAULTPRI, 0)) == NULL) {
1255                 mptsas_log(mpt, CE_NOTE, "ddi_taskq_create failed");
1256                 goto fail;
1257         }
1258         event_taskq_create++;
1259 
1260         /*
1261          * A taskq is created for dealing with dr events
1262          */
1263         if ((mpt->m_dr_taskq = ddi_taskq_create(dip,
1264             "mptsas_dr_taskq",
1265             1, TASKQ_DEFAULTPRI, 0)) == NULL) {
1266                 mptsas_log(mpt, CE_NOTE, "ddi_taskq_create for discovery "
1267                     "failed");
1268                 goto fail;
1269         }
1270         dr_taskq_create++;
1271 
1272         mpt->m_doneq_thread_threshold = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1273             0, "mptsas_doneq_thread_threshold_prop", 10);
1274         mpt->m_doneq_length_threshold = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1275             0, "mptsas_doneq_length_threshold_prop", 8);
1276         mpt->m_doneq_thread_n = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
1277             0, "mptsas_doneq_thread_n_prop", 8);
1278 
1279         if (mpt->m_doneq_thread_n) {
1280                 cv_init(&mpt->m_doneq_thread_cv, NULL, CV_DRIVER, NULL);
1281                 mutex_init(&mpt->m_doneq_mutex, NULL, MUTEX_DRIVER, NULL);
1282 
1283                 mutex_enter(&mpt->m_doneq_mutex);
1284                 mpt->m_doneq_thread_id =
1285                     kmem_zalloc(sizeof (mptsas_doneq_thread_list_t)
1286                     * mpt->m_doneq_thread_n, KM_SLEEP);
1287 
1288                 for (j = 0; j < mpt->m_doneq_thread_n; j++) {
1289                         cv_init(&mpt->m_doneq_thread_id[j].cv, NULL,
1290                             CV_DRIVER, NULL);
1291                         mutex_init(&mpt->m_doneq_thread_id[j].mutex, NULL,
1292                             MUTEX_DRIVER, NULL);
1293                         mutex_enter(&mpt->m_doneq_thread_id[j].mutex);
1294                         mpt->m_doneq_thread_id[j].flag |=
1295                             MPTSAS_DONEQ_THREAD_ACTIVE;
1296                         mpt->m_doneq_thread_id[j].arg.mpt = mpt;
1297                         mpt->m_doneq_thread_id[j].arg.t = j;
1298                         mpt->m_doneq_thread_id[j].threadp =
1299                             thread_create(NULL, 0, mptsas_doneq_thread,
1300                             &mpt->m_doneq_thread_id[j].arg,
1301                             0, &p0, TS_RUN, minclsyspri);
1302                         mpt->m_doneq_thread_id[j].donetail =
1303                             &mpt->m_doneq_thread_id[j].doneq;
1304                         mutex_exit(&mpt->m_doneq_thread_id[j].mutex);
1305                 }
1306                 mutex_exit(&mpt->m_doneq_mutex);
1307                 doneq_thread_create++;
1308         }
1309 
1310         /*
1311          * Disable hardware interrupt since we're not ready to
1312          * handle it yet.
1313          */
1314         MPTSAS_DISABLE_INTR(mpt);
1315         if (mptsas_register_intrs(mpt) == FALSE)
1316                 goto fail;
1317         intr_added++;
1318 
1319         /* Initialize mutex used in interrupt handler */
1320         mutex_init(&mpt->m_mutex, NULL, MUTEX_DRIVER,
1321             DDI_INTR_PRI(mpt->m_intr_pri));
1322         mutex_init(&mpt->m_passthru_mutex, NULL, MUTEX_DRIVER, NULL);
1323         mutex_init(&mpt->m_tx_waitq_mutex, NULL, MUTEX_DRIVER,
1324             DDI_INTR_PRI(mpt->m_intr_pri));
1325         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
1326                 mutex_init(&mpt->m_phy_info[i].smhba_info.phy_mutex,
1327                     NULL, MUTEX_DRIVER,
1328                     DDI_INTR_PRI(mpt->m_intr_pri));
1329         }
1330 
1331         cv_init(&mpt->m_cv, NULL, CV_DRIVER, NULL);
1332         cv_init(&mpt->m_passthru_cv, NULL, CV_DRIVER, NULL);
1333         cv_init(&mpt->m_fw_cv, NULL, CV_DRIVER, NULL);
1334         cv_init(&mpt->m_config_cv, NULL, CV_DRIVER, NULL);
1335         cv_init(&mpt->m_fw_diag_cv, NULL, CV_DRIVER, NULL);
1336         mutex_init_done++;
1337 
1338         mutex_enter(&mpt->m_mutex);
1339         /*
1340          * Initialize power management component
1341          */
1342         if (mpt->m_options & MPTSAS_OPT_PM) {
1343                 if (mptsas_init_pm(mpt)) {
1344                         mutex_exit(&mpt->m_mutex);
1345                         mptsas_log(mpt, CE_WARN, "mptsas pm initialization "
1346                             "failed");
1347                         goto fail;
1348                 }
1349         }
1350 
1351         /*
1352          * Initialize chip using Message Unit Reset, if allowed
1353          */
1354         mpt->m_softstate |= MPTSAS_SS_MSG_UNIT_RESET;
1355         if (mptsas_init_chip(mpt, TRUE) == DDI_FAILURE) {
1356                 mutex_exit(&mpt->m_mutex);
1357                 mptsas_log(mpt, CE_WARN, "mptsas chip initialization failed");
1358                 goto fail;
1359         }
1360 
1361         mpt->m_targets = refhash_create(MPTSAS_TARGET_BUCKET_COUNT,
1362             mptsas_target_addr_hash, mptsas_target_addr_cmp,
1363             mptsas_target_free, sizeof (mptsas_target_t),
1364             offsetof(mptsas_target_t, m_link),
1365             offsetof(mptsas_target_t, m_addr), KM_SLEEP);
1366 
1367         /*
1368          * Fill in the phy_info structure and get the base WWID
1369          */
1370         if (mptsas_get_manufacture_page5(mpt) == DDI_FAILURE) {
1371                 mptsas_log(mpt, CE_WARN,
1372                     "mptsas_get_manufacture_page5 failed!");
1373                 goto fail;
1374         }
1375 
1376         if (mptsas_get_sas_io_unit_page_hndshk(mpt)) {
1377                 mptsas_log(mpt, CE_WARN,
1378                     "mptsas_get_sas_io_unit_page_hndshk failed!");
1379                 goto fail;
1380         }
1381 
1382         if (mptsas_get_manufacture_page0(mpt) == DDI_FAILURE) {
1383                 mptsas_log(mpt, CE_WARN,
1384                     "mptsas_get_manufacture_page0 failed!");
1385                 goto fail;
1386         }
1387 
1388         mutex_exit(&mpt->m_mutex);
1389 
1390         /*
1391          * Register the iport for multiple port HBA
1392          */
1393         mptsas_iport_register(mpt);
1394 
1395         /*
1396          * initialize SCSI HBA transport structure
1397          */
1398         if (mptsas_hba_setup(mpt) == FALSE)
1399                 goto fail;
1400         hba_attach_setup++;
1401 
1402         if (mptsas_smp_setup(mpt) == FALSE)
1403                 goto fail;
1404         smp_attach_setup++;
1405 
1406         if (mptsas_cache_create(mpt) == FALSE)
1407                 goto fail;
1408 
1409         mpt->m_scsi_reset_delay      = ddi_prop_get_int(DDI_DEV_T_ANY,
1410             dip, 0, "scsi-reset-delay", SCSI_DEFAULT_RESET_DELAY);
1411         if (mpt->m_scsi_reset_delay == 0) {
1412                 mptsas_log(mpt, CE_NOTE,
1413                     "scsi_reset_delay of 0 is not recommended,"
1414                     " resetting to SCSI_DEFAULT_RESET_DELAY\n");
1415                 mpt->m_scsi_reset_delay = SCSI_DEFAULT_RESET_DELAY;
1416         }
1417 
1418         /*
1419          * Initialize the wait and done FIFO queue
1420          */
1421         mpt->m_donetail = &mpt->m_doneq;
1422         mpt->m_waitqtail = &mpt->m_waitq;
1423         mpt->m_tx_waitqtail = &mpt->m_tx_waitq;
1424         mpt->m_tx_draining = 0;
1425 
1426         /*
1427          * ioc cmd queue initialize
1428          */
1429         mpt->m_ioc_event_cmdtail = &mpt->m_ioc_event_cmdq;
1430         mpt->m_dev_handle = 0xFFFF;
1431 
1432         MPTSAS_ENABLE_INTR(mpt);
1433 
1434         /*
1435          * enable event notification
1436          */
1437         mutex_enter(&mpt->m_mutex);
1438         if (mptsas_ioc_enable_event_notification(mpt)) {
1439                 mutex_exit(&mpt->m_mutex);
1440                 goto fail;
1441         }
1442         mutex_exit(&mpt->m_mutex);
1443 
1444         /*
1445          * used for mptsas_watch
1446          */
1447         mptsas_list_add(mpt);
1448 
1449         mutex_enter(&mptsas_global_mutex);
1450         if (mptsas_timeouts_enabled == 0) {
1451                 mptsas_scsi_watchdog_tick = ddi_prop_get_int(DDI_DEV_T_ANY,
1452                     dip, 0, "scsi-watchdog-tick", DEFAULT_WD_TICK);
1453 
1454                 mptsas_tick = mptsas_scsi_watchdog_tick *
1455                     drv_usectohz((clock_t)1000000);
1456 
1457                 mptsas_timeout_id = timeout(mptsas_watch, NULL, mptsas_tick);
1458                 mptsas_timeouts_enabled = 1;
1459         }
1460         mutex_exit(&mptsas_global_mutex);
1461         added_watchdog++;
1462 
1463         /*
1464          * Initialize PHY info for smhba.
1465          * This requires watchdog to be enabled otherwise if interrupts
1466          * don't work the system will hang.
1467          */
1468         if (mptsas_smhba_setup(mpt)) {
1469                 mptsas_log(mpt, CE_WARN, "mptsas phy initialization "
1470                     "failed");
1471                 goto fail;
1472         }
1473 
1474         /* Check all dma handles allocated in attach */
1475         if ((mptsas_check_dma_handle(mpt->m_dma_req_frame_hdl)
1476             != DDI_SUCCESS) ||
1477             (mptsas_check_dma_handle(mpt->m_dma_req_sense_hdl)
1478             != DDI_SUCCESS) ||
1479             (mptsas_check_dma_handle(mpt->m_dma_reply_frame_hdl)
1480             != DDI_SUCCESS) ||
1481             (mptsas_check_dma_handle(mpt->m_dma_free_queue_hdl)
1482             != DDI_SUCCESS) ||
1483             (mptsas_check_dma_handle(mpt->m_dma_post_queue_hdl)
1484             != DDI_SUCCESS) ||
1485             (mptsas_check_dma_handle(mpt->m_hshk_dma_hdl)
1486             != DDI_SUCCESS)) {
1487                 goto fail;
1488         }
1489 
1490         /* Check all acc handles allocated in attach */
1491         if ((mptsas_check_acc_handle(mpt->m_datap) != DDI_SUCCESS) ||
1492             (mptsas_check_acc_handle(mpt->m_acc_req_frame_hdl)
1493             != DDI_SUCCESS) ||
1494             (mptsas_check_acc_handle(mpt->m_acc_req_sense_hdl)
1495             != DDI_SUCCESS) ||
1496             (mptsas_check_acc_handle(mpt->m_acc_reply_frame_hdl)
1497             != DDI_SUCCESS) ||
1498             (mptsas_check_acc_handle(mpt->m_acc_free_queue_hdl)
1499             != DDI_SUCCESS) ||
1500             (mptsas_check_acc_handle(mpt->m_acc_post_queue_hdl)
1501             != DDI_SUCCESS) ||
1502             (mptsas_check_acc_handle(mpt->m_hshk_acc_hdl)
1503             != DDI_SUCCESS) ||
1504             (mptsas_check_acc_handle(mpt->m_config_handle)
1505             != DDI_SUCCESS)) {
1506                 goto fail;
1507         }
1508 
1509         /*
1510          * After this point, we are not going to fail the attach.
1511          */
1512 
1513         /* Print message of HBA present */
1514         ddi_report_dev(dip);
1515 
1516         /* report idle status to pm framework */
1517         if (mpt->m_options & MPTSAS_OPT_PM) {
1518                 (void) pm_idle_component(dip, 0);
1519         }
1520 
1521         return (DDI_SUCCESS);
1522 
1523 fail:
1524         mptsas_log(mpt, CE_WARN, "attach failed");
1525         mptsas_fm_ereport(mpt, DDI_FM_DEVICE_NO_RESPONSE);
1526         ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_LOST);
1527         if (mpt) {
1528                 /* deallocate in reverse order */
1529                 if (added_watchdog) {
1530                         mptsas_list_del(mpt);
1531                         mutex_enter(&mptsas_global_mutex);
1532 
1533                         if (mptsas_timeout_id && (mptsas_head == NULL)) {
1534                                 timeout_id_t tid = mptsas_timeout_id;
1535                                 mptsas_timeouts_enabled = 0;
1536                                 mptsas_timeout_id = 0;
1537                                 mutex_exit(&mptsas_global_mutex);
1538                                 (void) untimeout(tid);
1539                                 mutex_enter(&mptsas_global_mutex);
1540                         }
1541                         mutex_exit(&mptsas_global_mutex);
1542                 }
1543 
1544                 mptsas_cache_destroy(mpt);
1545 
1546                 if (smp_attach_setup) {
1547                         mptsas_smp_teardown(mpt);
1548                 }
1549                 if (hba_attach_setup) {
1550                         mptsas_hba_teardown(mpt);
1551                 }
1552 
1553                 if (mpt->m_targets)
1554                         refhash_destroy(mpt->m_targets);
1555                 if (mpt->m_smp_targets)
1556                         refhash_destroy(mpt->m_smp_targets);
1557 
1558                 if (mpt->m_active) {
1559                         mptsas_free_active_slots(mpt);
1560                 }
1561                 if (intr_added) {
1562                         mptsas_unregister_intrs(mpt);
1563                 }
1564 
1565                 if (doneq_thread_create) {
1566                         mutex_enter(&mpt->m_doneq_mutex);
1567                         doneq_thread_num = mpt->m_doneq_thread_n;
1568                         for (j = 0; j < mpt->m_doneq_thread_n; j++) {
1569                                 mutex_enter(&mpt->m_doneq_thread_id[j].mutex);
1570                                 mpt->m_doneq_thread_id[j].flag &=
1571                                     (~MPTSAS_DONEQ_THREAD_ACTIVE);
1572                                 cv_signal(&mpt->m_doneq_thread_id[j].cv);
1573                                 mutex_exit(&mpt->m_doneq_thread_id[j].mutex);
1574                         }
1575                         while (mpt->m_doneq_thread_n) {
1576                                 cv_wait(&mpt->m_doneq_thread_cv,
1577                                     &mpt->m_doneq_mutex);
1578                         }
1579                         for (j = 0; j < doneq_thread_num; j++) {
1580                                 cv_destroy(&mpt->m_doneq_thread_id[j].cv);
1581                                 mutex_destroy(&mpt->m_doneq_thread_id[j].mutex);
1582                         }
1583                         kmem_free(mpt->m_doneq_thread_id,
1584                             sizeof (mptsas_doneq_thread_list_t)
1585                             * doneq_thread_num);
1586                         mutex_exit(&mpt->m_doneq_mutex);
1587                         cv_destroy(&mpt->m_doneq_thread_cv);
1588                         mutex_destroy(&mpt->m_doneq_mutex);
1589                 }
1590                 if (event_taskq_create) {
1591                         ddi_taskq_destroy(mpt->m_event_taskq);
1592                 }
1593                 if (dr_taskq_create) {
1594                         ddi_taskq_destroy(mpt->m_dr_taskq);
1595                 }
1596                 if (mutex_init_done) {
1597                         mutex_destroy(&mpt->m_tx_waitq_mutex);
1598                         mutex_destroy(&mpt->m_passthru_mutex);
1599                         mutex_destroy(&mpt->m_mutex);
1600                         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
1601                                 mutex_destroy(
1602                                     &mpt->m_phy_info[i].smhba_info.phy_mutex);
1603                         }
1604                         cv_destroy(&mpt->m_cv);
1605                         cv_destroy(&mpt->m_passthru_cv);
1606                         cv_destroy(&mpt->m_fw_cv);
1607                         cv_destroy(&mpt->m_config_cv);
1608                         cv_destroy(&mpt->m_fw_diag_cv);
1609                 }
1610 
1611                 if (map_setup) {
1612                         mptsas_cfg_fini(mpt);
1613                 }
1614                 if (config_setup) {
1615                         mptsas_config_space_fini(mpt);
1616                 }
1617                 mptsas_free_handshake_msg(mpt);
1618                 mptsas_hba_fini(mpt);
1619 
1620                 mptsas_fm_fini(mpt);
1621                 ddi_soft_state_free(mptsas_state, instance);
1622                 ddi_prop_remove_all(dip);
1623         }
1624         return (DDI_FAILURE);
1625 }
1626 
1627 static int
1628 mptsas_suspend(dev_info_t *devi)
1629 {
1630         mptsas_t        *mpt, *g;
1631         scsi_hba_tran_t *tran;
1632 
1633         if (scsi_hba_iport_unit_address(devi)) {
1634                 return (DDI_SUCCESS);
1635         }
1636 
1637         if ((tran = ddi_get_driver_private(devi)) == NULL)
1638                 return (DDI_SUCCESS);
1639 
1640         mpt = TRAN2MPT(tran);
1641         if (!mpt) {
1642                 return (DDI_SUCCESS);
1643         }
1644 
1645         mutex_enter(&mpt->m_mutex);
1646 
1647         if (mpt->m_suspended++) {
1648                 mutex_exit(&mpt->m_mutex);
1649                 return (DDI_SUCCESS);
1650         }
1651 
1652         /*
1653          * Cancel timeout threads for this mpt
1654          */
1655         if (mpt->m_quiesce_timeid) {
1656                 timeout_id_t tid = mpt->m_quiesce_timeid;
1657                 mpt->m_quiesce_timeid = 0;
1658                 mutex_exit(&mpt->m_mutex);
1659                 (void) untimeout(tid);
1660                 mutex_enter(&mpt->m_mutex);
1661         }
1662 
1663         if (mpt->m_restart_cmd_timeid) {
1664                 timeout_id_t tid = mpt->m_restart_cmd_timeid;
1665                 mpt->m_restart_cmd_timeid = 0;
1666                 mutex_exit(&mpt->m_mutex);
1667                 (void) untimeout(tid);
1668                 mutex_enter(&mpt->m_mutex);
1669         }
1670 
1671         mutex_exit(&mpt->m_mutex);
1672 
1673         (void) pm_idle_component(mpt->m_dip, 0);
1674 
1675         /*
1676          * Cancel watch threads if all mpts suspended
1677          */
1678         rw_enter(&mptsas_global_rwlock, RW_WRITER);
1679         for (g = mptsas_head; g != NULL; g = g->m_next) {
1680                 if (!g->m_suspended)
1681                         break;
1682         }
1683         rw_exit(&mptsas_global_rwlock);
1684 
1685         mutex_enter(&mptsas_global_mutex);
1686         if (g == NULL) {
1687                 timeout_id_t tid;
1688 
1689                 mptsas_timeouts_enabled = 0;
1690                 if (mptsas_timeout_id) {
1691                         tid = mptsas_timeout_id;
1692                         mptsas_timeout_id = 0;
1693                         mutex_exit(&mptsas_global_mutex);
1694                         (void) untimeout(tid);
1695                         mutex_enter(&mptsas_global_mutex);
1696                 }
1697                 if (mptsas_reset_watch) {
1698                         tid = mptsas_reset_watch;
1699                         mptsas_reset_watch = 0;
1700                         mutex_exit(&mptsas_global_mutex);
1701                         (void) untimeout(tid);
1702                         mutex_enter(&mptsas_global_mutex);
1703                 }
1704         }
1705         mutex_exit(&mptsas_global_mutex);
1706 
1707         mutex_enter(&mpt->m_mutex);
1708 
1709         /*
1710          * If this mpt is not in full power(PM_LEVEL_D0), just return.
1711          */
1712         if ((mpt->m_options & MPTSAS_OPT_PM) &&
1713             (mpt->m_power_level != PM_LEVEL_D0)) {
1714                 mutex_exit(&mpt->m_mutex);
1715                 return (DDI_SUCCESS);
1716         }
1717 
1718         /* Disable HBA interrupts in hardware */
1719         MPTSAS_DISABLE_INTR(mpt);
1720         /*
1721          * Send RAID action system shutdown to sync IR
1722          */
1723         mptsas_raid_action_system_shutdown(mpt);
1724 
1725         mutex_exit(&mpt->m_mutex);
1726 
1727         /* drain the taskq */
1728         ddi_taskq_wait(mpt->m_event_taskq);
1729         ddi_taskq_wait(mpt->m_dr_taskq);
1730 
1731         return (DDI_SUCCESS);
1732 }
1733 
1734 #ifdef  __sparc
1735 /*ARGSUSED*/
1736 static int
1737 mptsas_reset(dev_info_t *devi, ddi_reset_cmd_t cmd)
1738 {
1739         mptsas_t        *mpt;
1740         scsi_hba_tran_t *tran;
1741 
1742         /*
1743          * If this call is for iport, just return.
1744          */
1745         if (scsi_hba_iport_unit_address(devi))
1746                 return (DDI_SUCCESS);
1747 
1748         if ((tran = ddi_get_driver_private(devi)) == NULL)
1749                 return (DDI_SUCCESS);
1750 
1751         if ((mpt = TRAN2MPT(tran)) == NULL)
1752                 return (DDI_SUCCESS);
1753 
1754         /*
1755          * Send RAID action system shutdown to sync IR.  Disable HBA
1756          * interrupts in hardware first.
1757          */
1758         MPTSAS_DISABLE_INTR(mpt);
1759         mptsas_raid_action_system_shutdown(mpt);
1760 
1761         return (DDI_SUCCESS);
1762 }
1763 #else /* __sparc */
1764 /*
1765  * quiesce(9E) entry point.
1766  *
1767  * This function is called when the system is single-threaded at high
1768  * PIL with preemption disabled. Therefore, this function must not be
1769  * blocked.
1770  *
1771  * This function returns DDI_SUCCESS on success, or DDI_FAILURE on failure.
1772  * DDI_FAILURE indicates an error condition and should almost never happen.
1773  */
1774 static int
1775 mptsas_quiesce(dev_info_t *devi)
1776 {
1777         mptsas_t        *mpt;
1778         scsi_hba_tran_t *tran;
1779 
1780         /*
1781          * If this call is for iport, just return.
1782          */
1783         if (scsi_hba_iport_unit_address(devi))
1784                 return (DDI_SUCCESS);
1785 
1786         if ((tran = ddi_get_driver_private(devi)) == NULL)
1787                 return (DDI_SUCCESS);
1788 
1789         if ((mpt = TRAN2MPT(tran)) == NULL)
1790                 return (DDI_SUCCESS);
1791 
1792         /* Disable HBA interrupts in hardware */
1793         MPTSAS_DISABLE_INTR(mpt);
1794         /* Send RAID action system shutdonw to sync IR */
1795         mptsas_raid_action_system_shutdown(mpt);
1796 
1797         return (DDI_SUCCESS);
1798 }
1799 #endif  /* __sparc */
1800 
1801 /*
1802  * detach(9E).  Remove all device allocations and system resources;
1803  * disable device interrupts.
1804  * Return DDI_SUCCESS if done; DDI_FAILURE if there's a problem.
1805  */
1806 static int
1807 mptsas_detach(dev_info_t *devi, ddi_detach_cmd_t cmd)
1808 {
1809         /* CONSTCOND */
1810         ASSERT(NO_COMPETING_THREADS);
1811         NDBG0(("mptsas_detach: dip=0x%p cmd=0x%p", (void *)devi, (void *)cmd));
1812 
1813         switch (cmd) {
1814         case DDI_DETACH:
1815                 return (mptsas_do_detach(devi));
1816 
1817         case DDI_SUSPEND:
1818                 return (mptsas_suspend(devi));
1819 
1820         default:
1821                 return (DDI_FAILURE);
1822         }
1823         /* NOTREACHED */
1824 }
1825 
1826 static int
1827 mptsas_do_detach(dev_info_t *dip)
1828 {
1829         mptsas_t        *mpt;
1830         scsi_hba_tran_t *tran;
1831         int             circ = 0;
1832         int             circ1 = 0;
1833         mdi_pathinfo_t  *pip = NULL;
1834         int             i;
1835         int             doneq_thread_num = 0;
1836 
1837         NDBG0(("mptsas_do_detach: dip=0x%p", (void *)dip));
1838 
1839         if ((tran = ndi_flavorv_get(dip, SCSA_FLAVOR_SCSI_DEVICE)) == NULL)
1840                 return (DDI_FAILURE);
1841 
1842         mpt = TRAN2MPT(tran);
1843         if (!mpt) {
1844                 return (DDI_FAILURE);
1845         }
1846         /*
1847          * Still have pathinfo child, should not detach mpt driver
1848          */
1849         if (scsi_hba_iport_unit_address(dip)) {
1850                 if (mpt->m_mpxio_enable) {
1851                         /*
1852                          * MPxIO enabled for the iport
1853                          */
1854                         ndi_devi_enter(scsi_vhci_dip, &circ1);
1855                         ndi_devi_enter(dip, &circ);
1856                         while (pip = mdi_get_next_client_path(dip, NULL)) {
1857                                 if (mdi_pi_free(pip, 0) == MDI_SUCCESS) {
1858                                         continue;
1859                                 }
1860                                 ndi_devi_exit(dip, circ);
1861                                 ndi_devi_exit(scsi_vhci_dip, circ1);
1862                                 NDBG12(("detach failed because of "
1863                                     "outstanding path info"));
1864                                 return (DDI_FAILURE);
1865                         }
1866                         ndi_devi_exit(dip, circ);
1867                         ndi_devi_exit(scsi_vhci_dip, circ1);
1868                         (void) mdi_phci_unregister(dip, 0);
1869                 }
1870 
1871                 ddi_prop_remove_all(dip);
1872 
1873                 return (DDI_SUCCESS);
1874         }
1875 
1876         /* Make sure power level is D0 before accessing registers */
1877         if (mpt->m_options & MPTSAS_OPT_PM) {
1878                 (void) pm_busy_component(dip, 0);
1879                 if (mpt->m_power_level != PM_LEVEL_D0) {
1880                         if (pm_raise_power(dip, 0, PM_LEVEL_D0) !=
1881                             DDI_SUCCESS) {
1882                                 mptsas_log(mpt, CE_WARN,
1883                                     "mptsas%d: Raise power request failed.",
1884                                     mpt->m_instance);
1885                                 (void) pm_idle_component(dip, 0);
1886                                 return (DDI_FAILURE);
1887                         }
1888                 }
1889         }
1890 
1891         /*
1892          * Send RAID action system shutdown to sync IR.  After action, send a
1893          * Message Unit Reset. Since after that DMA resource will be freed,
1894          * set ioc to READY state will avoid HBA initiated DMA operation.
1895          */
1896         mutex_enter(&mpt->m_mutex);
1897         MPTSAS_DISABLE_INTR(mpt);
1898         mptsas_raid_action_system_shutdown(mpt);
1899         mpt->m_softstate |= MPTSAS_SS_MSG_UNIT_RESET;
1900         (void) mptsas_ioc_reset(mpt, FALSE);
1901         mutex_exit(&mpt->m_mutex);
1902         mptsas_rem_intrs(mpt);
1903         ddi_taskq_destroy(mpt->m_event_taskq);
1904         ddi_taskq_destroy(mpt->m_dr_taskq);
1905 
1906         if (mpt->m_doneq_thread_n) {
1907                 mutex_enter(&mpt->m_doneq_mutex);
1908                 doneq_thread_num = mpt->m_doneq_thread_n;
1909                 for (i = 0; i < mpt->m_doneq_thread_n; i++) {
1910                         mutex_enter(&mpt->m_doneq_thread_id[i].mutex);
1911                         mpt->m_doneq_thread_id[i].flag &=
1912                             (~MPTSAS_DONEQ_THREAD_ACTIVE);
1913                         cv_signal(&mpt->m_doneq_thread_id[i].cv);
1914                         mutex_exit(&mpt->m_doneq_thread_id[i].mutex);
1915                 }
1916                 while (mpt->m_doneq_thread_n) {
1917                         cv_wait(&mpt->m_doneq_thread_cv,
1918                             &mpt->m_doneq_mutex);
1919                 }
1920                 for (i = 0;  i < doneq_thread_num; i++) {
1921                         cv_destroy(&mpt->m_doneq_thread_id[i].cv);
1922                         mutex_destroy(&mpt->m_doneq_thread_id[i].mutex);
1923                 }
1924                 kmem_free(mpt->m_doneq_thread_id,
1925                     sizeof (mptsas_doneq_thread_list_t)
1926                     * doneq_thread_num);
1927                 mutex_exit(&mpt->m_doneq_mutex);
1928                 cv_destroy(&mpt->m_doneq_thread_cv);
1929                 mutex_destroy(&mpt->m_doneq_mutex);
1930         }
1931 
1932         scsi_hba_reset_notify_tear_down(mpt->m_reset_notify_listf);
1933 
1934         mptsas_list_del(mpt);
1935 
1936         /*
1937          * Cancel timeout threads for this mpt
1938          */
1939         mutex_enter(&mpt->m_mutex);
1940         if (mpt->m_quiesce_timeid) {
1941                 timeout_id_t tid = mpt->m_quiesce_timeid;
1942                 mpt->m_quiesce_timeid = 0;
1943                 mutex_exit(&mpt->m_mutex);
1944                 (void) untimeout(tid);
1945                 mutex_enter(&mpt->m_mutex);
1946         }
1947 
1948         if (mpt->m_restart_cmd_timeid) {
1949                 timeout_id_t tid = mpt->m_restart_cmd_timeid;
1950                 mpt->m_restart_cmd_timeid = 0;
1951                 mutex_exit(&mpt->m_mutex);
1952                 (void) untimeout(tid);
1953                 mutex_enter(&mpt->m_mutex);
1954         }
1955 
1956         mutex_exit(&mpt->m_mutex);
1957 
1958         /*
1959          * last mpt? ... if active, CANCEL watch threads.
1960          */
1961         mutex_enter(&mptsas_global_mutex);
1962         if (mptsas_head == NULL) {
1963                 timeout_id_t tid;
1964                 /*
1965                  * Clear mptsas_timeouts_enable so that the watch thread
1966                  * gets restarted on DDI_ATTACH
1967                  */
1968                 mptsas_timeouts_enabled = 0;
1969                 if (mptsas_timeout_id) {
1970                         tid = mptsas_timeout_id;
1971                         mptsas_timeout_id = 0;
1972                         mutex_exit(&mptsas_global_mutex);
1973                         (void) untimeout(tid);
1974                         mutex_enter(&mptsas_global_mutex);
1975                 }
1976                 if (mptsas_reset_watch) {
1977                         tid = mptsas_reset_watch;
1978                         mptsas_reset_watch = 0;
1979                         mutex_exit(&mptsas_global_mutex);
1980                         (void) untimeout(tid);
1981                         mutex_enter(&mptsas_global_mutex);
1982                 }
1983         }
1984         mutex_exit(&mptsas_global_mutex);
1985 
1986         /*
1987          * Delete Phy stats
1988          */
1989         mptsas_destroy_phy_stats(mpt);
1990 
1991         mptsas_destroy_hashes(mpt);
1992 
1993         /*
1994          * Delete nt_active.
1995          */
1996         mutex_enter(&mpt->m_mutex);
1997         mptsas_free_active_slots(mpt);
1998         mutex_exit(&mpt->m_mutex);
1999 
2000         /* deallocate everything that was allocated in mptsas_attach */
2001         mptsas_cache_destroy(mpt);
2002 
2003         mptsas_hba_fini(mpt);
2004         mptsas_cfg_fini(mpt);
2005 
2006         /* Lower the power informing PM Framework */
2007         if (mpt->m_options & MPTSAS_OPT_PM) {
2008                 if (pm_lower_power(dip, 0, PM_LEVEL_D3) != DDI_SUCCESS)
2009                         mptsas_log(mpt, CE_WARN,
2010                             "!mptsas%d: Lower power request failed "
2011                             "during detach, ignoring.",
2012                             mpt->m_instance);
2013         }
2014 
2015         mutex_destroy(&mpt->m_tx_waitq_mutex);
2016         mutex_destroy(&mpt->m_passthru_mutex);
2017         mutex_destroy(&mpt->m_mutex);
2018         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
2019                 mutex_destroy(&mpt->m_phy_info[i].smhba_info.phy_mutex);
2020         }
2021         cv_destroy(&mpt->m_cv);
2022         cv_destroy(&mpt->m_passthru_cv);
2023         cv_destroy(&mpt->m_fw_cv);
2024         cv_destroy(&mpt->m_config_cv);
2025         cv_destroy(&mpt->m_fw_diag_cv);
2026 
2027 
2028         mptsas_smp_teardown(mpt);
2029         mptsas_hba_teardown(mpt);
2030 
2031         mptsas_config_space_fini(mpt);
2032 
2033         mptsas_free_handshake_msg(mpt);
2034 
2035         mptsas_fm_fini(mpt);
2036         ddi_soft_state_free(mptsas_state, ddi_get_instance(dip));
2037         ddi_prop_remove_all(dip);
2038 
2039         return (DDI_SUCCESS);
2040 }
2041 
2042 static void
2043 mptsas_list_add(mptsas_t *mpt)
2044 {
2045         rw_enter(&mptsas_global_rwlock, RW_WRITER);
2046 
2047         if (mptsas_head == NULL) {
2048                 mptsas_head = mpt;
2049         } else {
2050                 mptsas_tail->m_next = mpt;
2051         }
2052         mptsas_tail = mpt;
2053         rw_exit(&mptsas_global_rwlock);
2054 }
2055 
2056 static void
2057 mptsas_list_del(mptsas_t *mpt)
2058 {
2059         mptsas_t *m;
2060         /*
2061          * Remove device instance from the global linked list
2062          */
2063         rw_enter(&mptsas_global_rwlock, RW_WRITER);
2064         if (mptsas_head == mpt) {
2065                 m = mptsas_head = mpt->m_next;
2066         } else {
2067                 for (m = mptsas_head; m != NULL; m = m->m_next) {
2068                         if (m->m_next == mpt) {
2069                                 m->m_next = mpt->m_next;
2070                                 break;
2071                         }
2072                 }
2073                 if (m == NULL) {
2074                         mptsas_log(mpt, CE_PANIC, "Not in softc list!");
2075                 }
2076         }
2077 
2078         if (mptsas_tail == mpt) {
2079                 mptsas_tail = m;
2080         }
2081         rw_exit(&mptsas_global_rwlock);
2082 }
2083 
2084 static int
2085 mptsas_alloc_handshake_msg(mptsas_t *mpt, size_t alloc_size)
2086 {
2087         ddi_dma_attr_t  task_dma_attrs;
2088 
2089         mpt->m_hshk_dma_size = 0;
2090         task_dma_attrs = mpt->m_msg_dma_attr;
2091         task_dma_attrs.dma_attr_sgllen = 1;
2092         task_dma_attrs.dma_attr_granular = (uint32_t)(alloc_size);
2093 
2094         /* allocate Task Management ddi_dma resources */
2095         if (mptsas_dma_addr_create(mpt, task_dma_attrs,
2096             &mpt->m_hshk_dma_hdl, &mpt->m_hshk_acc_hdl, &mpt->m_hshk_memp,
2097             alloc_size, NULL) == FALSE) {
2098                 return (DDI_FAILURE);
2099         }
2100         mpt->m_hshk_dma_size = alloc_size;
2101 
2102         return (DDI_SUCCESS);
2103 }
2104 
2105 static void
2106 mptsas_free_handshake_msg(mptsas_t *mpt)
2107 {
2108         if (mpt->m_hshk_dma_size == 0)
2109                 return;
2110         mptsas_dma_addr_destroy(&mpt->m_hshk_dma_hdl, &mpt->m_hshk_acc_hdl);
2111         mpt->m_hshk_dma_size = 0;
2112 }
2113 
2114 static int
2115 mptsas_hba_setup(mptsas_t *mpt)
2116 {
2117         scsi_hba_tran_t         *hba_tran;
2118         int                     tran_flags;
2119 
2120         /* Allocate a transport structure */
2121         hba_tran = mpt->m_tran = scsi_hba_tran_alloc(mpt->m_dip,
2122             SCSI_HBA_CANSLEEP);
2123         ASSERT(mpt->m_tran != NULL);
2124 
2125         hba_tran->tran_hba_private   = mpt;
2126         hba_tran->tran_tgt_private   = NULL;
2127 
2128         hba_tran->tran_tgt_init              = mptsas_scsi_tgt_init;
2129         hba_tran->tran_tgt_free              = mptsas_scsi_tgt_free;
2130 
2131         hba_tran->tran_start         = mptsas_scsi_start;
2132         hba_tran->tran_reset         = mptsas_scsi_reset;
2133         hba_tran->tran_abort         = mptsas_scsi_abort;
2134         hba_tran->tran_getcap                = mptsas_scsi_getcap;
2135         hba_tran->tran_setcap                = mptsas_scsi_setcap;
2136         hba_tran->tran_init_pkt              = mptsas_scsi_init_pkt;
2137         hba_tran->tran_destroy_pkt   = mptsas_scsi_destroy_pkt;
2138 
2139         hba_tran->tran_dmafree               = mptsas_scsi_dmafree;
2140         hba_tran->tran_sync_pkt              = mptsas_scsi_sync_pkt;
2141         hba_tran->tran_reset_notify  = mptsas_scsi_reset_notify;
2142 
2143         hba_tran->tran_get_bus_addr  = mptsas_get_bus_addr;
2144         hba_tran->tran_get_name              = mptsas_get_name;
2145 
2146         hba_tran->tran_quiesce               = mptsas_scsi_quiesce;
2147         hba_tran->tran_unquiesce     = mptsas_scsi_unquiesce;
2148         hba_tran->tran_bus_reset     = NULL;
2149 
2150         hba_tran->tran_add_eventcall = NULL;
2151         hba_tran->tran_get_eventcookie       = NULL;
2152         hba_tran->tran_post_event    = NULL;
2153         hba_tran->tran_remove_eventcall      = NULL;
2154 
2155         hba_tran->tran_bus_config    = mptsas_bus_config;
2156 
2157         hba_tran->tran_interconnect_type = INTERCONNECT_SAS;
2158 
2159         /*
2160          * All children of the HBA are iports. We need tran was cloned.
2161          * So we pass the flags to SCSA. SCSI_HBA_TRAN_CLONE will be
2162          * inherited to iport's tran vector.
2163          */
2164         tran_flags = (SCSI_HBA_HBA | SCSI_HBA_TRAN_CLONE);
2165 
2166         if (scsi_hba_attach_setup(mpt->m_dip, &mpt->m_msg_dma_attr,
2167             hba_tran, tran_flags) != DDI_SUCCESS) {
2168                 mptsas_log(mpt, CE_WARN, "hba attach setup failed");
2169                 scsi_hba_tran_free(hba_tran);
2170                 mpt->m_tran = NULL;
2171                 return (FALSE);
2172         }
2173         return (TRUE);
2174 }
2175 
2176 static void
2177 mptsas_hba_teardown(mptsas_t *mpt)
2178 {
2179         (void) scsi_hba_detach(mpt->m_dip);
2180         if (mpt->m_tran != NULL) {
2181                 scsi_hba_tran_free(mpt->m_tran);
2182                 mpt->m_tran = NULL;
2183         }
2184 }
2185 
2186 static void
2187 mptsas_iport_register(mptsas_t *mpt)
2188 {
2189         int i, j;
2190         mptsas_phymask_t        mask = 0x0;
2191         /*
2192          * initial value of mask is 0
2193          */
2194         mutex_enter(&mpt->m_mutex);
2195         for (i = 0; i < mpt->m_num_phys; i++) {
2196                 mptsas_phymask_t phy_mask = 0x0;
2197                 char phy_mask_name[MPTSAS_MAX_PHYS];
2198                 uint8_t current_port;
2199 
2200                 if (mpt->m_phy_info[i].attached_devhdl == 0)
2201                         continue;
2202 
2203                 bzero(phy_mask_name, sizeof (phy_mask_name));
2204 
2205                 current_port = mpt->m_phy_info[i].port_num;
2206 
2207                 if ((mask & (1 << i)) != 0)
2208                         continue;
2209 
2210                 for (j = 0; j < mpt->m_num_phys; j++) {
2211                         if (mpt->m_phy_info[j].attached_devhdl &&
2212                             (mpt->m_phy_info[j].port_num == current_port)) {
2213                                 phy_mask |= (1 << j);
2214                         }
2215                 }
2216                 mask = mask | phy_mask;
2217 
2218                 for (j = 0; j < mpt->m_num_phys; j++) {
2219                         if ((phy_mask >> j) & 0x01) {
2220                                 mpt->m_phy_info[j].phy_mask = phy_mask;
2221                         }
2222                 }
2223 
2224                 (void) sprintf(phy_mask_name, "%x", phy_mask);
2225 
2226                 mutex_exit(&mpt->m_mutex);
2227                 /*
2228                  * register a iport
2229                  */
2230                 (void) scsi_hba_iport_register(mpt->m_dip, phy_mask_name);
2231                 mutex_enter(&mpt->m_mutex);
2232         }
2233         mutex_exit(&mpt->m_mutex);
2234         /*
2235          * register a virtual port for RAID volume always
2236          */
2237         (void) scsi_hba_iport_register(mpt->m_dip, "v0");
2238 
2239 }
2240 
2241 static int
2242 mptsas_smp_setup(mptsas_t *mpt)
2243 {
2244         mpt->m_smptran = smp_hba_tran_alloc(mpt->m_dip);
2245         ASSERT(mpt->m_smptran != NULL);
2246         mpt->m_smptran->smp_tran_hba_private = mpt;
2247         mpt->m_smptran->smp_tran_start = mptsas_smp_start;
2248         if (smp_hba_attach_setup(mpt->m_dip, mpt->m_smptran) != DDI_SUCCESS) {
2249                 mptsas_log(mpt, CE_WARN, "smp attach setup failed");
2250                 smp_hba_tran_free(mpt->m_smptran);
2251                 mpt->m_smptran = NULL;
2252                 return (FALSE);
2253         }
2254         /*
2255          * Initialize smp hash table
2256          */
2257         mpt->m_smp_targets = refhash_create(MPTSAS_SMP_BUCKET_COUNT,
2258             mptsas_target_addr_hash, mptsas_target_addr_cmp,
2259             mptsas_smp_free, sizeof (mptsas_smp_t),
2260             offsetof(mptsas_smp_t, m_link), offsetof(mptsas_smp_t, m_addr),
2261             KM_SLEEP);
2262         mpt->m_smp_devhdl = 0xFFFF;
2263 
2264         return (TRUE);
2265 }
2266 
2267 static void
2268 mptsas_smp_teardown(mptsas_t *mpt)
2269 {
2270         (void) smp_hba_detach(mpt->m_dip);
2271         if (mpt->m_smptran != NULL) {
2272                 smp_hba_tran_free(mpt->m_smptran);
2273                 mpt->m_smptran = NULL;
2274         }
2275         mpt->m_smp_devhdl = 0;
2276 }
2277 
2278 static int
2279 mptsas_cache_create(mptsas_t *mpt)
2280 {
2281         int instance = mpt->m_instance;
2282         char buf[64];
2283 
2284         /*
2285          * create kmem cache for packets
2286          */
2287         (void) sprintf(buf, "mptsas%d_cache", instance);
2288         mpt->m_kmem_cache = kmem_cache_create(buf,
2289             sizeof (struct mptsas_cmd) + scsi_pkt_size(), 8,
2290             mptsas_kmem_cache_constructor, mptsas_kmem_cache_destructor,
2291             NULL, (void *)mpt, NULL, 0);
2292 
2293         if (mpt->m_kmem_cache == NULL) {
2294                 mptsas_log(mpt, CE_WARN, "creating kmem cache failed");
2295                 return (FALSE);
2296         }
2297 
2298         /*
2299          * create kmem cache for extra SGL frames if SGL cannot
2300          * be accomodated into main request frame.
2301          */
2302         (void) sprintf(buf, "mptsas%d_cache_frames", instance);
2303         mpt->m_cache_frames = kmem_cache_create(buf,
2304             sizeof (mptsas_cache_frames_t), 8,
2305             mptsas_cache_frames_constructor, mptsas_cache_frames_destructor,
2306             NULL, (void *)mpt, NULL, 0);
2307 
2308         if (mpt->m_cache_frames == NULL) {
2309                 mptsas_log(mpt, CE_WARN, "creating cache for frames failed");
2310                 return (FALSE);
2311         }
2312 
2313         return (TRUE);
2314 }
2315 
2316 static void
2317 mptsas_cache_destroy(mptsas_t *mpt)
2318 {
2319         /* deallocate in reverse order */
2320         if (mpt->m_cache_frames) {
2321                 kmem_cache_destroy(mpt->m_cache_frames);
2322                 mpt->m_cache_frames = NULL;
2323         }
2324         if (mpt->m_kmem_cache) {
2325                 kmem_cache_destroy(mpt->m_kmem_cache);
2326                 mpt->m_kmem_cache = NULL;
2327         }
2328 }
2329 
2330 static int
2331 mptsas_power(dev_info_t *dip, int component, int level)
2332 {
2333 #ifndef __lock_lint
2334         _NOTE(ARGUNUSED(component))
2335 #endif
2336         mptsas_t        *mpt;
2337         int             rval = DDI_SUCCESS;
2338         int             polls = 0;
2339         uint32_t        ioc_status;
2340 
2341         if (scsi_hba_iport_unit_address(dip) != 0)
2342                 return (DDI_SUCCESS);
2343 
2344         mpt = ddi_get_soft_state(mptsas_state, ddi_get_instance(dip));
2345         if (mpt == NULL) {
2346                 return (DDI_FAILURE);
2347         }
2348 
2349         mutex_enter(&mpt->m_mutex);
2350 
2351         /*
2352          * If the device is busy, don't lower its power level
2353          */
2354         if (mpt->m_busy && (mpt->m_power_level > level)) {
2355                 mutex_exit(&mpt->m_mutex);
2356                 return (DDI_FAILURE);
2357         }
2358         switch (level) {
2359         case PM_LEVEL_D0:
2360                 NDBG11(("mptsas%d: turning power ON.", mpt->m_instance));
2361                 MPTSAS_POWER_ON(mpt);
2362                 /*
2363                  * Wait up to 30 seconds for IOC to come out of reset.
2364                  */
2365                 while (((ioc_status = ddi_get32(mpt->m_datap,
2366                     &mpt->m_reg->Doorbell)) &
2367                     MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_RESET) {
2368                         if (polls++ > 3000) {
2369                                 break;
2370                         }
2371                         delay(drv_usectohz(10000));
2372                 }
2373                 /*
2374                  * If IOC is not in operational state, try to hard reset it.
2375                  */
2376                 if ((ioc_status & MPI2_IOC_STATE_MASK) !=
2377                     MPI2_IOC_STATE_OPERATIONAL) {
2378                         mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
2379                         if (mptsas_restart_ioc(mpt) == DDI_FAILURE) {
2380                                 mptsas_log(mpt, CE_WARN,
2381                                     "mptsas_power: hard reset failed");
2382                                 mutex_exit(&mpt->m_mutex);
2383                                 return (DDI_FAILURE);
2384                         }
2385                 }
2386                 mpt->m_power_level = PM_LEVEL_D0;
2387                 break;
2388         case PM_LEVEL_D3:
2389                 NDBG11(("mptsas%d: turning power OFF.", mpt->m_instance));
2390                 MPTSAS_POWER_OFF(mpt);
2391                 break;
2392         default:
2393                 mptsas_log(mpt, CE_WARN, "mptsas%d: unknown power level <%x>.",
2394                     mpt->m_instance, level);
2395                 rval = DDI_FAILURE;
2396                 break;
2397         }
2398         mutex_exit(&mpt->m_mutex);
2399         return (rval);
2400 }
2401 
2402 /*
2403  * Initialize configuration space and figure out which
2404  * chip and revison of the chip the mpt driver is using.
2405  */
2406 static int
2407 mptsas_config_space_init(mptsas_t *mpt)
2408 {
2409         NDBG0(("mptsas_config_space_init"));
2410 
2411         if (mpt->m_config_handle != NULL)
2412                 return (TRUE);
2413 
2414         if (pci_config_setup(mpt->m_dip,
2415             &mpt->m_config_handle) != DDI_SUCCESS) {
2416                 mptsas_log(mpt, CE_WARN, "cannot map configuration space.");
2417                 return (FALSE);
2418         }
2419 
2420         /*
2421          * This is a workaround for a XMITS ASIC bug which does not
2422          * drive the CBE upper bits.
2423          */
2424         if (pci_config_get16(mpt->m_config_handle, PCI_CONF_STAT) &
2425             PCI_STAT_PERROR) {
2426                 pci_config_put16(mpt->m_config_handle, PCI_CONF_STAT,
2427                     PCI_STAT_PERROR);
2428         }
2429 
2430         mptsas_setup_cmd_reg(mpt);
2431 
2432         /*
2433          * Get the chip device id:
2434          */
2435         mpt->m_devid = pci_config_get16(mpt->m_config_handle, PCI_CONF_DEVID);
2436 
2437         /*
2438          * Save the revision.
2439          */
2440         mpt->m_revid = pci_config_get8(mpt->m_config_handle, PCI_CONF_REVID);
2441 
2442         /*
2443          * Save the SubSystem Vendor and Device IDs
2444          */
2445         mpt->m_svid = pci_config_get16(mpt->m_config_handle, PCI_CONF_SUBVENID);
2446         mpt->m_ssid = pci_config_get16(mpt->m_config_handle, PCI_CONF_SUBSYSID);
2447 
2448         /*
2449          * Set the latency timer to 0x40 as specified by the upa -> pci
2450          * bridge chip design team.  This may be done by the sparc pci
2451          * bus nexus driver, but the driver should make sure the latency
2452          * timer is correct for performance reasons.
2453          */
2454         pci_config_put8(mpt->m_config_handle, PCI_CONF_LATENCY_TIMER,
2455             MPTSAS_LATENCY_TIMER);
2456 
2457         (void) mptsas_get_pci_cap(mpt);
2458         return (TRUE);
2459 }
2460 
2461 static void
2462 mptsas_config_space_fini(mptsas_t *mpt)
2463 {
2464         if (mpt->m_config_handle != NULL) {
2465                 mptsas_disable_bus_master(mpt);
2466                 pci_config_teardown(&mpt->m_config_handle);
2467                 mpt->m_config_handle = NULL;
2468         }
2469 }
2470 
2471 static void
2472 mptsas_setup_cmd_reg(mptsas_t *mpt)
2473 {
2474         ushort_t        cmdreg;
2475 
2476         /*
2477          * Set the command register to the needed values.
2478          */
2479         cmdreg = pci_config_get16(mpt->m_config_handle, PCI_CONF_COMM);
2480         cmdreg |= (PCI_COMM_ME | PCI_COMM_SERR_ENABLE |
2481             PCI_COMM_PARITY_DETECT | PCI_COMM_MAE);
2482         cmdreg &= ~PCI_COMM_IO;
2483         pci_config_put16(mpt->m_config_handle, PCI_CONF_COMM, cmdreg);
2484 }
2485 
2486 static void
2487 mptsas_disable_bus_master(mptsas_t *mpt)
2488 {
2489         ushort_t        cmdreg;
2490 
2491         /*
2492          * Clear the master enable bit in the PCI command register.
2493          * This prevents any bus mastering activity like DMA.
2494          */
2495         cmdreg = pci_config_get16(mpt->m_config_handle, PCI_CONF_COMM);
2496         cmdreg &= ~PCI_COMM_ME;
2497         pci_config_put16(mpt->m_config_handle, PCI_CONF_COMM, cmdreg);
2498 }
2499 
2500 int
2501 mptsas_dma_alloc(mptsas_t *mpt, mptsas_dma_alloc_state_t *dma_statep)
2502 {
2503         ddi_dma_attr_t  attrs;
2504 
2505         attrs = mpt->m_io_dma_attr;
2506         attrs.dma_attr_sgllen = 1;
2507 
2508         ASSERT(dma_statep != NULL);
2509 
2510         if (mptsas_dma_addr_create(mpt, attrs, &dma_statep->handle,
2511             &dma_statep->accessp, &dma_statep->memp, dma_statep->size,
2512             &dma_statep->cookie) == FALSE) {
2513                 return (DDI_FAILURE);
2514         }
2515 
2516         return (DDI_SUCCESS);
2517 }
2518 
2519 void
2520 mptsas_dma_free(mptsas_dma_alloc_state_t *dma_statep)
2521 {
2522         ASSERT(dma_statep != NULL);
2523         mptsas_dma_addr_destroy(&dma_statep->handle, &dma_statep->accessp);
2524         dma_statep->size = 0;
2525 }
2526 
2527 int
2528 mptsas_do_dma(mptsas_t *mpt, uint32_t size, int var, int (*callback)())
2529 {
2530         ddi_dma_attr_t          attrs;
2531         ddi_dma_handle_t        dma_handle;
2532         caddr_t                 memp;
2533         ddi_acc_handle_t        accessp;
2534         int                     rval;
2535 
2536         ASSERT(mutex_owned(&mpt->m_mutex));
2537 
2538         attrs = mpt->m_msg_dma_attr;
2539         attrs.dma_attr_sgllen = 1;
2540         attrs.dma_attr_granular = size;
2541 
2542         if (mptsas_dma_addr_create(mpt, attrs, &dma_handle,
2543             &accessp, &memp, size, NULL) == FALSE) {
2544                 return (DDI_FAILURE);
2545         }
2546 
2547         rval = (*callback) (mpt, memp, var, accessp);
2548 
2549         if ((mptsas_check_dma_handle(dma_handle) != DDI_SUCCESS) ||
2550             (mptsas_check_acc_handle(accessp) != DDI_SUCCESS)) {
2551                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
2552                 rval = DDI_FAILURE;
2553         }
2554 
2555         mptsas_dma_addr_destroy(&dma_handle, &accessp);
2556         return (rval);
2557 
2558 }
2559 
2560 static int
2561 mptsas_alloc_request_frames(mptsas_t *mpt)
2562 {
2563         ddi_dma_attr_t          frame_dma_attrs;
2564         caddr_t                 memp;
2565         ddi_dma_cookie_t        cookie;
2566         size_t                  mem_size;
2567 
2568         /*
2569          * re-alloc when it has already alloced
2570          */
2571         if (mpt->m_dma_req_frame_hdl)
2572                 mptsas_dma_addr_destroy(&mpt->m_dma_req_frame_hdl,
2573                     &mpt->m_acc_req_frame_hdl);
2574 
2575         /*
2576          * The size of the request frame pool is:
2577          *   Number of Request Frames * Request Frame Size
2578          */
2579         mem_size = mpt->m_max_requests * mpt->m_req_frame_size;
2580 
2581         /*
2582          * set the DMA attributes.  System Request Message Frames must be
2583          * aligned on a 16-byte boundry.
2584          */
2585         frame_dma_attrs = mpt->m_msg_dma_attr;
2586         frame_dma_attrs.dma_attr_align = 16;
2587         frame_dma_attrs.dma_attr_sgllen = 1;
2588 
2589         /*
2590          * allocate the request frame pool.
2591          */
2592         if (mptsas_dma_addr_create(mpt, frame_dma_attrs,
2593             &mpt->m_dma_req_frame_hdl, &mpt->m_acc_req_frame_hdl, &memp,
2594             mem_size, &cookie) == FALSE) {
2595                 return (DDI_FAILURE);
2596         }
2597 
2598         /*
2599          * Store the request frame memory address.  This chip uses this
2600          * address to dma to and from the driver's frame.  The second
2601          * address is the address mpt uses to fill in the frame.
2602          */
2603         mpt->m_req_frame_dma_addr = cookie.dmac_laddress;
2604         mpt->m_req_frame = memp;
2605 
2606         /*
2607          * Clear the request frame pool.
2608          */
2609         bzero(mpt->m_req_frame, mem_size);
2610 
2611         return (DDI_SUCCESS);
2612 }
2613 
2614 static int
2615 mptsas_alloc_sense_bufs(mptsas_t *mpt)
2616 {
2617         ddi_dma_attr_t          sense_dma_attrs;
2618         caddr_t                 memp;
2619         ddi_dma_cookie_t        cookie;
2620         size_t                  mem_size;
2621         int                     num_extrqsense_bufs;
2622 
2623         /*
2624          * re-alloc when it has already alloced
2625          */
2626         if (mpt->m_dma_req_sense_hdl) {
2627                 rmfreemap(mpt->m_erqsense_map);
2628                 mptsas_dma_addr_destroy(&mpt->m_dma_req_sense_hdl,
2629                     &mpt->m_acc_req_sense_hdl);
2630         }
2631 
2632         /*
2633          * The size of the request sense pool is:
2634          *   (Number of Request Frames - 2 ) * Request Sense Size +
2635          *   extra memory for extended sense requests.
2636          */
2637         mem_size = ((mpt->m_max_requests - 2) * mpt->m_req_sense_size) +
2638             mptsas_extreq_sense_bufsize;
2639 
2640         /*
2641          * set the DMA attributes.  ARQ buffers
2642          * aligned on a 16-byte boundry.
2643          */
2644         sense_dma_attrs = mpt->m_msg_dma_attr;
2645         sense_dma_attrs.dma_attr_align = 16;
2646         sense_dma_attrs.dma_attr_sgllen = 1;
2647 
2648         /*
2649          * allocate the request sense buffer pool.
2650          */
2651         if (mptsas_dma_addr_create(mpt, sense_dma_attrs,
2652             &mpt->m_dma_req_sense_hdl, &mpt->m_acc_req_sense_hdl, &memp,
2653             mem_size, &cookie) == FALSE) {
2654                 return (DDI_FAILURE);
2655         }
2656 
2657         /*
2658          * Store the request sense base memory address.  This chip uses this
2659          * address to dma the request sense data.  The second
2660          * address is the address mpt uses to access the data.
2661          * The third is the base for the extended rqsense buffers.
2662          */
2663         mpt->m_req_sense_dma_addr = cookie.dmac_laddress;
2664         mpt->m_req_sense = memp;
2665         memp += (mpt->m_max_requests - 2) * mpt->m_req_sense_size;
2666         mpt->m_extreq_sense = memp;
2667 
2668         /*
2669          * The extra memory is divided up into multiples of the base
2670          * buffer size in order to allocate via rmalloc().
2671          * Note that the rmallocmap cannot start at zero!
2672          */
2673         num_extrqsense_bufs = mptsas_extreq_sense_bufsize /
2674             mpt->m_req_sense_size;
2675         mpt->m_erqsense_map = rmallocmap_wait(num_extrqsense_bufs);
2676         rmfree(mpt->m_erqsense_map, num_extrqsense_bufs, 1);
2677 
2678         /*
2679          * Clear the pool.
2680          */
2681         bzero(mpt->m_req_sense, mem_size);
2682 
2683         return (DDI_SUCCESS);
2684 }
2685 
2686 static int
2687 mptsas_alloc_reply_frames(mptsas_t *mpt)
2688 {
2689         ddi_dma_attr_t          frame_dma_attrs;
2690         caddr_t                 memp;
2691         ddi_dma_cookie_t        cookie;
2692         size_t                  mem_size;
2693 
2694         /*
2695          * re-alloc when it has already alloced
2696          */
2697         if (mpt->m_dma_reply_frame_hdl) {
2698                 mptsas_dma_addr_destroy(&mpt->m_dma_reply_frame_hdl,
2699                     &mpt->m_acc_reply_frame_hdl);
2700         }
2701 
2702         /*
2703          * The size of the reply frame pool is:
2704          *   Number of Reply Frames * Reply Frame Size
2705          */
2706         mem_size = mpt->m_max_replies * mpt->m_reply_frame_size;
2707 
2708         /*
2709          * set the DMA attributes.   System Reply Message Frames must be
2710          * aligned on a 4-byte boundry.  This is the default.
2711          */
2712         frame_dma_attrs = mpt->m_msg_dma_attr;
2713         frame_dma_attrs.dma_attr_sgllen = 1;
2714 
2715         /*
2716          * allocate the reply frame pool
2717          */
2718         if (mptsas_dma_addr_create(mpt, frame_dma_attrs,
2719             &mpt->m_dma_reply_frame_hdl, &mpt->m_acc_reply_frame_hdl, &memp,
2720             mem_size, &cookie) == FALSE) {
2721                 return (DDI_FAILURE);
2722         }
2723 
2724         /*
2725          * Store the reply frame memory address.  This chip uses this
2726          * address to dma to and from the driver's frame.  The second
2727          * address is the address mpt uses to process the frame.
2728          */
2729         mpt->m_reply_frame_dma_addr = cookie.dmac_laddress;
2730         mpt->m_reply_frame = memp;
2731 
2732         /*
2733          * Clear the reply frame pool.
2734          */
2735         bzero(mpt->m_reply_frame, mem_size);
2736 
2737         return (DDI_SUCCESS);
2738 }
2739 
2740 static int
2741 mptsas_alloc_free_queue(mptsas_t *mpt)
2742 {
2743         ddi_dma_attr_t          frame_dma_attrs;
2744         caddr_t                 memp;
2745         ddi_dma_cookie_t        cookie;
2746         size_t                  mem_size;
2747 
2748         /*
2749          * re-alloc when it has already alloced
2750          */
2751         if (mpt->m_dma_free_queue_hdl) {
2752                 mptsas_dma_addr_destroy(&mpt->m_dma_free_queue_hdl,
2753                     &mpt->m_acc_free_queue_hdl);
2754         }
2755 
2756         /*
2757          * The reply free queue size is:
2758          *   Reply Free Queue Depth * 4
2759          * The "4" is the size of one 32 bit address (low part of 64-bit
2760          *   address)
2761          */
2762         mem_size = mpt->m_free_queue_depth * 4;
2763 
2764         /*
2765          * set the DMA attributes  The Reply Free Queue must be aligned on a
2766          * 16-byte boundry.
2767          */
2768         frame_dma_attrs = mpt->m_msg_dma_attr;
2769         frame_dma_attrs.dma_attr_align = 16;
2770         frame_dma_attrs.dma_attr_sgllen = 1;
2771 
2772         /*
2773          * allocate the reply free queue
2774          */
2775         if (mptsas_dma_addr_create(mpt, frame_dma_attrs,
2776             &mpt->m_dma_free_queue_hdl, &mpt->m_acc_free_queue_hdl, &memp,
2777             mem_size, &cookie) == FALSE) {
2778                 return (DDI_FAILURE);
2779         }
2780 
2781         /*
2782          * Store the reply free queue memory address.  This chip uses this
2783          * address to read from the reply free queue.  The second address
2784          * is the address mpt uses to manage the queue.
2785          */
2786         mpt->m_free_queue_dma_addr = cookie.dmac_laddress;
2787         mpt->m_free_queue = memp;
2788 
2789         /*
2790          * Clear the reply free queue memory.
2791          */
2792         bzero(mpt->m_free_queue, mem_size);
2793 
2794         return (DDI_SUCCESS);
2795 }
2796 
2797 static int
2798 mptsas_alloc_post_queue(mptsas_t *mpt)
2799 {
2800         ddi_dma_attr_t          frame_dma_attrs;
2801         caddr_t                 memp;
2802         ddi_dma_cookie_t        cookie;
2803         size_t                  mem_size;
2804 
2805         /*
2806          * re-alloc when it has already alloced
2807          */
2808         if (mpt->m_dma_post_queue_hdl) {
2809                 mptsas_dma_addr_destroy(&mpt->m_dma_post_queue_hdl,
2810                     &mpt->m_acc_post_queue_hdl);
2811         }
2812 
2813         /*
2814          * The reply descriptor post queue size is:
2815          *   Reply Descriptor Post Queue Depth * 8
2816          * The "8" is the size of each descriptor (8 bytes or 64 bits).
2817          */
2818         mem_size = mpt->m_post_queue_depth * 8;
2819 
2820         /*
2821          * set the DMA attributes.  The Reply Descriptor Post Queue must be
2822          * aligned on a 16-byte boundry.
2823          */
2824         frame_dma_attrs = mpt->m_msg_dma_attr;
2825         frame_dma_attrs.dma_attr_align = 16;
2826         frame_dma_attrs.dma_attr_sgllen = 1;
2827 
2828         /*
2829          * allocate the reply post queue
2830          */
2831         if (mptsas_dma_addr_create(mpt, frame_dma_attrs,
2832             &mpt->m_dma_post_queue_hdl, &mpt->m_acc_post_queue_hdl, &memp,
2833             mem_size, &cookie) == FALSE) {
2834                 return (DDI_FAILURE);
2835         }
2836 
2837         /*
2838          * Store the reply descriptor post queue memory address.  This chip
2839          * uses this address to write to the reply descriptor post queue.  The
2840          * second address is the address mpt uses to manage the queue.
2841          */
2842         mpt->m_post_queue_dma_addr = cookie.dmac_laddress;
2843         mpt->m_post_queue = memp;
2844 
2845         /*
2846          * Clear the reply post queue memory.
2847          */
2848         bzero(mpt->m_post_queue, mem_size);
2849 
2850         return (DDI_SUCCESS);
2851 }
2852 
2853 static void
2854 mptsas_alloc_reply_args(mptsas_t *mpt)
2855 {
2856         if (mpt->m_replyh_args == NULL) {
2857                 mpt->m_replyh_args = kmem_zalloc(sizeof (m_replyh_arg_t) *
2858                     mpt->m_max_replies, KM_SLEEP);
2859         }
2860 }
2861 
2862 static int
2863 mptsas_alloc_extra_sgl_frame(mptsas_t *mpt, mptsas_cmd_t *cmd)
2864 {
2865         mptsas_cache_frames_t   *frames = NULL;
2866         if (cmd->cmd_extra_frames == NULL) {
2867                 frames = kmem_cache_alloc(mpt->m_cache_frames, KM_NOSLEEP);
2868                 if (frames == NULL) {
2869                         return (DDI_FAILURE);
2870                 }
2871                 cmd->cmd_extra_frames = frames;
2872         }
2873         return (DDI_SUCCESS);
2874 }
2875 
2876 static void
2877 mptsas_free_extra_sgl_frame(mptsas_t *mpt, mptsas_cmd_t *cmd)
2878 {
2879         if (cmd->cmd_extra_frames) {
2880                 kmem_cache_free(mpt->m_cache_frames,
2881                     (void *)cmd->cmd_extra_frames);
2882                 cmd->cmd_extra_frames = NULL;
2883         }
2884 }
2885 
2886 static void
2887 mptsas_cfg_fini(mptsas_t *mpt)
2888 {
2889         NDBG0(("mptsas_cfg_fini"));
2890         ddi_regs_map_free(&mpt->m_datap);
2891 }
2892 
2893 static void
2894 mptsas_hba_fini(mptsas_t *mpt)
2895 {
2896         NDBG0(("mptsas_hba_fini"));
2897 
2898         /*
2899          * Free up any allocated memory
2900          */
2901         if (mpt->m_dma_req_frame_hdl) {
2902                 mptsas_dma_addr_destroy(&mpt->m_dma_req_frame_hdl,
2903                     &mpt->m_acc_req_frame_hdl);
2904         }
2905 
2906         if (mpt->m_dma_req_sense_hdl) {
2907                 rmfreemap(mpt->m_erqsense_map);
2908                 mptsas_dma_addr_destroy(&mpt->m_dma_req_sense_hdl,
2909                     &mpt->m_acc_req_sense_hdl);
2910         }
2911 
2912         if (mpt->m_dma_reply_frame_hdl) {
2913                 mptsas_dma_addr_destroy(&mpt->m_dma_reply_frame_hdl,
2914                     &mpt->m_acc_reply_frame_hdl);
2915         }
2916 
2917         if (mpt->m_dma_free_queue_hdl) {
2918                 mptsas_dma_addr_destroy(&mpt->m_dma_free_queue_hdl,
2919                     &mpt->m_acc_free_queue_hdl);
2920         }
2921 
2922         if (mpt->m_dma_post_queue_hdl) {
2923                 mptsas_dma_addr_destroy(&mpt->m_dma_post_queue_hdl,
2924                     &mpt->m_acc_post_queue_hdl);
2925         }
2926 
2927         if (mpt->m_replyh_args != NULL) {
2928                 kmem_free(mpt->m_replyh_args, sizeof (m_replyh_arg_t)
2929                     * mpt->m_max_replies);
2930         }
2931 }
2932 
2933 static int
2934 mptsas_name_child(dev_info_t *lun_dip, char *name, int len)
2935 {
2936         int             lun = 0;
2937         char            *sas_wwn = NULL;
2938         int             phynum = -1;
2939         int             reallen = 0;
2940 
2941         /* Get the target num */
2942         lun = ddi_prop_get_int(DDI_DEV_T_ANY, lun_dip, DDI_PROP_DONTPASS,
2943             LUN_PROP, 0);
2944 
2945         if ((phynum = ddi_prop_get_int(DDI_DEV_T_ANY, lun_dip,
2946             DDI_PROP_DONTPASS, "sata-phy", -1)) != -1) {
2947                 /*
2948                  * Stick in the address of form "pPHY,LUN"
2949                  */
2950                 reallen = snprintf(name, len, "p%x,%x", phynum, lun);
2951         } else if (ddi_prop_lookup_string(DDI_DEV_T_ANY, lun_dip,
2952             DDI_PROP_DONTPASS, SCSI_ADDR_PROP_TARGET_PORT, &sas_wwn)
2953             == DDI_PROP_SUCCESS) {
2954                 /*
2955                  * Stick in the address of the form "wWWN,LUN"
2956                  */
2957                 reallen = snprintf(name, len, "%s,%x", sas_wwn, lun);
2958                 ddi_prop_free(sas_wwn);
2959         } else {
2960                 return (DDI_FAILURE);
2961         }
2962 
2963         ASSERT(reallen < len);
2964         if (reallen >= len) {
2965                 mptsas_log(0, CE_WARN, "!mptsas_get_name: name parameter "
2966                     "length too small, it needs to be %d bytes", reallen + 1);
2967         }
2968         return (DDI_SUCCESS);
2969 }
2970 
2971 /*
2972  * tran_tgt_init(9E) - target device instance initialization
2973  */
2974 static int
2975 mptsas_scsi_tgt_init(dev_info_t *hba_dip, dev_info_t *tgt_dip,
2976     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
2977 {
2978 #ifndef __lock_lint
2979         _NOTE(ARGUNUSED(hba_tran))
2980 #endif
2981 
2982         /*
2983          * At this point, the scsi_device structure already exists
2984          * and has been initialized.
2985          *
2986          * Use this function to allocate target-private data structures,
2987          * if needed by this HBA.  Add revised flow-control and queue
2988          * properties for child here, if desired and if you can tell they
2989          * support tagged queueing by now.
2990          */
2991         mptsas_t                *mpt;
2992         int                     lun = sd->sd_address.a_lun;
2993         mdi_pathinfo_t          *pip = NULL;
2994         mptsas_tgt_private_t    *tgt_private = NULL;
2995         mptsas_target_t         *ptgt = NULL;
2996         char                    *psas_wwn = NULL;
2997         mptsas_phymask_t        phymask = 0;
2998         uint64_t                sas_wwn = 0;
2999         mptsas_target_addr_t    addr;
3000         mpt = SDEV2MPT(sd);
3001 
3002         ASSERT(scsi_hba_iport_unit_address(hba_dip) != 0);
3003 
3004         NDBG0(("mptsas_scsi_tgt_init: hbadip=0x%p tgtdip=0x%p lun=%d",
3005             (void *)hba_dip, (void *)tgt_dip, lun));
3006 
3007         if (ndi_dev_is_persistent_node(tgt_dip) == 0) {
3008                 (void) ndi_merge_node(tgt_dip, mptsas_name_child);
3009                 ddi_set_name_addr(tgt_dip, NULL);
3010                 return (DDI_FAILURE);
3011         }
3012         /*
3013          * phymask is 0 means the virtual port for RAID
3014          */
3015         phymask = (mptsas_phymask_t)ddi_prop_get_int(DDI_DEV_T_ANY, hba_dip, 0,
3016             "phymask", 0);
3017         if (mdi_component_is_client(tgt_dip, NULL) == MDI_SUCCESS) {
3018                 if ((pip = (void *)(sd->sd_private)) == NULL) {
3019                         /*
3020                          * Very bad news if this occurs. Somehow scsi_vhci has
3021                          * lost the pathinfo node for this target.
3022                          */
3023                         return (DDI_NOT_WELL_FORMED);
3024                 }
3025 
3026                 if (mdi_prop_lookup_int(pip, LUN_PROP, &lun) !=
3027                     DDI_PROP_SUCCESS) {
3028                         mptsas_log(mpt, CE_WARN, "Get lun property failed\n");
3029                         return (DDI_FAILURE);
3030                 }
3031 
3032                 if (mdi_prop_lookup_string(pip, SCSI_ADDR_PROP_TARGET_PORT,
3033                     &psas_wwn) == MDI_SUCCESS) {
3034                         if (scsi_wwnstr_to_wwn(psas_wwn, &sas_wwn)) {
3035                                 sas_wwn = 0;
3036                         }
3037                         (void) mdi_prop_free(psas_wwn);
3038                 }
3039         } else {
3040                 lun = ddi_prop_get_int(DDI_DEV_T_ANY, tgt_dip,
3041                     DDI_PROP_DONTPASS, LUN_PROP, 0);
3042                 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, tgt_dip,
3043                     DDI_PROP_DONTPASS, SCSI_ADDR_PROP_TARGET_PORT, &psas_wwn) ==
3044                     DDI_PROP_SUCCESS) {
3045                         if (scsi_wwnstr_to_wwn(psas_wwn, &sas_wwn)) {
3046                                 sas_wwn = 0;
3047                         }
3048                         ddi_prop_free(psas_wwn);
3049                 } else {
3050                         sas_wwn = 0;
3051                 }
3052         }
3053 
3054         ASSERT((sas_wwn != 0) || (phymask != 0));
3055         addr.mta_wwn = sas_wwn;
3056         addr.mta_phymask = phymask;
3057         mutex_enter(&mpt->m_mutex);
3058         ptgt = refhash_lookup(mpt->m_targets, &addr);
3059         mutex_exit(&mpt->m_mutex);
3060         if (ptgt == NULL) {
3061                 mptsas_log(mpt, CE_WARN, "!tgt_init: target doesn't exist or "
3062                     "gone already! phymask:%x, saswwn %"PRIx64, phymask,
3063                     sas_wwn);
3064                 return (DDI_FAILURE);
3065         }
3066         if (hba_tran->tran_tgt_private == NULL) {
3067                 tgt_private = kmem_zalloc(sizeof (mptsas_tgt_private_t),
3068                     KM_SLEEP);
3069                 tgt_private->t_lun = lun;
3070                 tgt_private->t_private = ptgt;
3071                 hba_tran->tran_tgt_private = tgt_private;
3072         }
3073 
3074         if (mdi_component_is_client(tgt_dip, NULL) == MDI_SUCCESS) {
3075                 return (DDI_SUCCESS);
3076         }
3077         mutex_enter(&mpt->m_mutex);
3078 
3079         if (ptgt->m_deviceinfo &
3080             (MPI2_SAS_DEVICE_INFO_SATA_DEVICE |
3081             MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE)) {
3082                 uchar_t *inq89 = NULL;
3083                 int inq89_len = 0x238;
3084                 int reallen = 0;
3085                 int rval = 0;
3086                 struct sata_id *sid = NULL;
3087                 char model[SATA_ID_MODEL_LEN + 1];
3088                 char fw[SATA_ID_FW_LEN + 1];
3089                 char *vid, *pid;
3090                 int i;
3091 
3092                 mutex_exit(&mpt->m_mutex);
3093                 /*
3094                  * According SCSI/ATA Translation -2 (SAT-2) revision 01a
3095                  * chapter 12.4.2 VPD page 89h includes 512 bytes ATA IDENTIFY
3096                  * DEVICE data or ATA IDENTIFY PACKET DEVICE data.
3097                  */
3098                 inq89 = kmem_zalloc(inq89_len, KM_SLEEP);
3099                 rval = mptsas_inquiry(mpt, ptgt, 0, 0x89,
3100                     inq89, inq89_len, &reallen, 1);
3101 
3102                 if (rval != 0) {
3103                         if (inq89 != NULL) {
3104                                 kmem_free(inq89, inq89_len);
3105                         }
3106 
3107                         mptsas_log(mpt, CE_WARN, "!mptsas request inquiry page "
3108                             "0x89 for SATA target:%x failed!", ptgt->m_devhdl);
3109                         return (DDI_SUCCESS);
3110                 }
3111                 sid = (void *)(&inq89[60]);
3112 
3113                 swab(sid->ai_model, model, SATA_ID_MODEL_LEN);
3114                 swab(sid->ai_fw, fw, SATA_ID_FW_LEN);
3115 
3116                 model[SATA_ID_MODEL_LEN] = 0;
3117                 fw[SATA_ID_FW_LEN] = 0;
3118 
3119                 /*
3120                  * split model into into vid/pid
3121                  */
3122                 for (i = 0, pid = model; i < SATA_ID_MODEL_LEN; i++, pid++)
3123                         if ((*pid == ' ') || (*pid == '\t'))
3124                                 break;
3125                 if (i < SATA_ID_MODEL_LEN) {
3126                         vid = model;
3127                         /*
3128                          * terminate vid, establish pid
3129                          */
3130                         *pid++ = 0;
3131                 } else {
3132                         /*
3133                          * vid will stay "ATA     ", the rule is same
3134                          * as sata framework implementation.
3135                          */
3136                         vid = NULL;
3137                         /*
3138                          * model is all pid
3139                          */
3140                         pid = model;
3141                 }
3142 
3143                 /*
3144                  * override SCSA "inquiry-*" properties
3145                  */
3146                 if (vid)
3147                         (void) scsi_device_prop_update_inqstring(sd,
3148                             INQUIRY_VENDOR_ID, vid, strlen(vid));
3149                 if (pid)
3150                         (void) scsi_device_prop_update_inqstring(sd,
3151                             INQUIRY_PRODUCT_ID, pid, strlen(pid));
3152                 (void) scsi_device_prop_update_inqstring(sd,
3153                     INQUIRY_REVISION_ID, fw, strlen(fw));
3154 
3155                 if (inq89 != NULL) {
3156                         kmem_free(inq89, inq89_len);
3157                 }
3158         } else {
3159                 mutex_exit(&mpt->m_mutex);
3160         }
3161 
3162         return (DDI_SUCCESS);
3163 }
3164 /*
3165  * tran_tgt_free(9E) - target device instance deallocation
3166  */
3167 static void
3168 mptsas_scsi_tgt_free(dev_info_t *hba_dip, dev_info_t *tgt_dip,
3169     scsi_hba_tran_t *hba_tran, struct scsi_device *sd)
3170 {
3171 #ifndef __lock_lint
3172         _NOTE(ARGUNUSED(hba_dip, tgt_dip, hba_tran, sd))
3173 #endif
3174 
3175         mptsas_tgt_private_t    *tgt_private = hba_tran->tran_tgt_private;
3176 
3177         if (tgt_private != NULL) {
3178                 kmem_free(tgt_private, sizeof (mptsas_tgt_private_t));
3179                 hba_tran->tran_tgt_private = NULL;
3180         }
3181 }
3182 
3183 /*
3184  * scsi_pkt handling
3185  *
3186  * Visible to the external world via the transport structure.
3187  */
3188 
3189 /*
3190  * Notes:
3191  *      - transport the command to the addressed SCSI target/lun device
3192  *      - normal operation is to schedule the command to be transported,
3193  *        and return TRAN_ACCEPT if this is successful.
3194  *      - if NO_INTR, tran_start must poll device for command completion
3195  */
3196 static int
3197 mptsas_scsi_start(struct scsi_address *ap, struct scsi_pkt *pkt)
3198 {
3199 #ifndef __lock_lint
3200         _NOTE(ARGUNUSED(ap))
3201 #endif
3202         mptsas_t        *mpt = PKT2MPT(pkt);
3203         mptsas_cmd_t    *cmd = PKT2CMD(pkt);
3204         int             rval;
3205         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
3206 
3207         NDBG1(("mptsas_scsi_start: pkt=0x%p", (void *)pkt));
3208         ASSERT(ptgt);
3209         if (ptgt == NULL)
3210                 return (TRAN_FATAL_ERROR);
3211 
3212         /*
3213          * prepare the pkt before taking mutex.
3214          */
3215         rval = mptsas_prepare_pkt(cmd);
3216         if (rval != TRAN_ACCEPT) {
3217                 return (rval);
3218         }
3219 
3220         /*
3221          * Send the command to target/lun, however your HBA requires it.
3222          * If busy, return TRAN_BUSY; if there's some other formatting error
3223          * in the packet, return TRAN_BADPKT; otherwise, fall through to the
3224          * return of TRAN_ACCEPT.
3225          *
3226          * Remember that access to shared resources, including the mptsas_t
3227          * data structure and the HBA hardware registers, must be protected
3228          * with mutexes, here and everywhere.
3229          *
3230          * Also remember that at interrupt time, you'll get an argument
3231          * to the interrupt handler which is a pointer to your mptsas_t
3232          * structure; you'll have to remember which commands are outstanding
3233          * and which scsi_pkt is the currently-running command so the
3234          * interrupt handler can refer to the pkt to set completion
3235          * status, call the target driver back through pkt_comp, etc.
3236          *
3237          * If the instance lock is held by other thread, don't spin to wait
3238          * for it. Instead, queue the cmd and next time when the instance lock
3239          * is not held, accept all the queued cmd. A extra tx_waitq is
3240          * introduced to protect the queue.
3241          *
3242          * The polled cmd will not be queud and accepted as usual.
3243          *
3244          * Under the tx_waitq mutex, record whether a thread is draining
3245          * the tx_waitq.  An IO requesting thread that finds the instance
3246          * mutex contended appends to the tx_waitq and while holding the
3247          * tx_wait mutex, if the draining flag is not set, sets it and then
3248          * proceeds to spin for the instance mutex. This scheme ensures that
3249          * the last cmd in a burst be processed.
3250          *
3251          * we enable this feature only when the helper threads are enabled,
3252          * at which we think the loads are heavy.
3253          *
3254          * per instance mutex m_tx_waitq_mutex is introduced to protect the
3255          * m_tx_waitqtail, m_tx_waitq, m_tx_draining.
3256          */
3257 
3258         if (mpt->m_doneq_thread_n) {
3259                 if (mutex_tryenter(&mpt->m_mutex) != 0) {
3260                         rval = mptsas_accept_txwq_and_pkt(mpt, cmd);
3261                         mutex_exit(&mpt->m_mutex);
3262                 } else if (cmd->cmd_pkt_flags & FLAG_NOINTR) {
3263                         mutex_enter(&mpt->m_mutex);
3264                         rval = mptsas_accept_txwq_and_pkt(mpt, cmd);
3265                         mutex_exit(&mpt->m_mutex);
3266                 } else {
3267                         mutex_enter(&mpt->m_tx_waitq_mutex);
3268                         /*
3269                          * ptgt->m_dr_flag is protected by m_mutex or
3270                          * m_tx_waitq_mutex. In this case, m_tx_waitq_mutex
3271                          * is acquired.
3272                          */
3273                         if (ptgt->m_dr_flag == MPTSAS_DR_INTRANSITION) {
3274                                 if (cmd->cmd_pkt_flags & FLAG_NOQUEUE) {
3275                                         /*
3276                                          * The command should be allowed to
3277                                          * retry by returning TRAN_BUSY to
3278                                          * to stall the I/O's which come from
3279                                          * scsi_vhci since the device/path is
3280                                          * in unstable state now.
3281                                          */
3282                                         mutex_exit(&mpt->m_tx_waitq_mutex);
3283                                         return (TRAN_BUSY);
3284                                 } else {
3285                                         /*
3286                                          * The device is offline, just fail the
3287                                          * command by returning
3288                                          * TRAN_FATAL_ERROR.
3289                                          */
3290                                         mutex_exit(&mpt->m_tx_waitq_mutex);
3291                                         return (TRAN_FATAL_ERROR);
3292                                 }
3293                         }
3294                         if (mpt->m_tx_draining) {
3295                                 cmd->cmd_flags |= CFLAG_TXQ;
3296                                 *mpt->m_tx_waitqtail = cmd;
3297                                 mpt->m_tx_waitqtail = &cmd->cmd_linkp;
3298                                 mutex_exit(&mpt->m_tx_waitq_mutex);
3299                         } else { /* drain the queue */
3300                                 mpt->m_tx_draining = 1;
3301                                 mutex_exit(&mpt->m_tx_waitq_mutex);
3302                                 mutex_enter(&mpt->m_mutex);
3303                                 rval = mptsas_accept_txwq_and_pkt(mpt, cmd);
3304                                 mutex_exit(&mpt->m_mutex);
3305                         }
3306                 }
3307         } else {
3308                 mutex_enter(&mpt->m_mutex);
3309                 /*
3310                  * ptgt->m_dr_flag is protected by m_mutex or m_tx_waitq_mutex
3311                  * in this case, m_mutex is acquired.
3312                  */
3313                 if (ptgt->m_dr_flag == MPTSAS_DR_INTRANSITION) {
3314                         if (cmd->cmd_pkt_flags & FLAG_NOQUEUE) {
3315                                 /*
3316                                  * commands should be allowed to retry by
3317                                  * returning TRAN_BUSY to stall the I/O's
3318                                  * which come from scsi_vhci since the device/
3319                                  * path is in unstable state now.
3320                                  */
3321                                 mutex_exit(&mpt->m_mutex);
3322                                 return (TRAN_BUSY);
3323                         } else {
3324                                 /*
3325                                  * The device is offline, just fail the
3326                                  * command by returning TRAN_FATAL_ERROR.
3327                                  */
3328                                 mutex_exit(&mpt->m_mutex);
3329                                 return (TRAN_FATAL_ERROR);
3330                         }
3331                 }
3332                 rval = mptsas_accept_pkt(mpt, cmd);
3333                 mutex_exit(&mpt->m_mutex);
3334         }
3335 
3336         return (rval);
3337 }
3338 
3339 /*
3340  * Accept all the queued cmds(if any) before accept the current one.
3341  */
3342 static int
3343 mptsas_accept_txwq_and_pkt(mptsas_t *mpt, mptsas_cmd_t *cmd)
3344 {
3345         int rval;
3346         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
3347 
3348         ASSERT(mutex_owned(&mpt->m_mutex));
3349         /*
3350          * The call to mptsas_accept_tx_waitq() must always be performed
3351          * because that is where mpt->m_tx_draining is cleared.
3352          */
3353         mutex_enter(&mpt->m_tx_waitq_mutex);
3354         mptsas_accept_tx_waitq(mpt);
3355         mutex_exit(&mpt->m_tx_waitq_mutex);
3356         /*
3357          * ptgt->m_dr_flag is protected by m_mutex or m_tx_waitq_mutex
3358          * in this case, m_mutex is acquired.
3359          */
3360         if (ptgt->m_dr_flag == MPTSAS_DR_INTRANSITION) {
3361                 if (cmd->cmd_pkt_flags & FLAG_NOQUEUE) {
3362                         /*
3363                          * The command should be allowed to retry by returning
3364                          * TRAN_BUSY to stall the I/O's which come from
3365                          * scsi_vhci since the device/path is in unstable state
3366                          * now.
3367                          */
3368                         return (TRAN_BUSY);
3369                 } else {
3370                         /*
3371                          * The device is offline, just fail the command by
3372                          * return TRAN_FATAL_ERROR.
3373                          */
3374                         return (TRAN_FATAL_ERROR);
3375                 }
3376         }
3377         rval = mptsas_accept_pkt(mpt, cmd);
3378 
3379         return (rval);
3380 }
3381 
3382 static int
3383 mptsas_accept_pkt(mptsas_t *mpt, mptsas_cmd_t *cmd)
3384 {
3385         int             rval = TRAN_ACCEPT;
3386         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
3387 
3388         NDBG1(("mptsas_accept_pkt: cmd=0x%p", (void *)cmd));
3389 
3390         ASSERT(mutex_owned(&mpt->m_mutex));
3391 
3392         if ((cmd->cmd_flags & CFLAG_PREPARED) == 0) {
3393                 rval = mptsas_prepare_pkt(cmd);
3394                 if (rval != TRAN_ACCEPT) {
3395                         cmd->cmd_flags &= ~CFLAG_TRANFLAG;
3396                         return (rval);
3397                 }
3398         }
3399 
3400         /*
3401          * reset the throttle if we were draining
3402          */
3403         if ((ptgt->m_t_ncmds == 0) &&
3404             (ptgt->m_t_throttle == DRAIN_THROTTLE)) {
3405                 NDBG23(("reset throttle"));
3406                 ASSERT(ptgt->m_reset_delay == 0);
3407                 mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
3408         }
3409 
3410         /*
3411          * If HBA is being reset, the DevHandles are being re-initialized,
3412          * which means that they could be invalid even if the target is still
3413          * attached.  Check if being reset and if DevHandle is being
3414          * re-initialized.  If this is the case, return BUSY so the I/O can be
3415          * retried later.
3416          */
3417         if ((ptgt->m_devhdl == MPTSAS_INVALID_DEVHDL) && mpt->m_in_reset) {
3418                 mptsas_set_pkt_reason(mpt, cmd, CMD_RESET, STAT_BUS_RESET);
3419                 if (cmd->cmd_flags & CFLAG_TXQ) {
3420                         mptsas_doneq_add(mpt, cmd);
3421                         mptsas_doneq_empty(mpt);
3422                         return (rval);
3423                 } else {
3424                         return (TRAN_BUSY);
3425                 }
3426         }
3427 
3428         /*
3429          * If device handle has already been invalidated, just
3430          * fail the command. In theory, command from scsi_vhci
3431          * client is impossible send down command with invalid
3432          * devhdl since devhdl is set after path offline, target
3433          * driver is not suppose to select a offlined path.
3434          */
3435         if (ptgt->m_devhdl == MPTSAS_INVALID_DEVHDL) {
3436                 NDBG3(("rejecting command, it might because invalid devhdl "
3437                     "request."));
3438                 mptsas_set_pkt_reason(mpt, cmd, CMD_DEV_GONE, STAT_TERMINATED);
3439                 if (cmd->cmd_flags & CFLAG_TXQ) {
3440                         mptsas_doneq_add(mpt, cmd);
3441                         mptsas_doneq_empty(mpt);
3442                         return (rval);
3443                 } else {
3444                         return (TRAN_FATAL_ERROR);
3445                 }
3446         }
3447         /*
3448          * The first case is the normal case.  mpt gets a command from the
3449          * target driver and starts it.
3450          * Since SMID 0 is reserved and the TM slot is reserved, the actual max
3451          * commands is m_max_requests - 2.
3452          */
3453         if ((mpt->m_ncmds <= (mpt->m_max_requests - 2)) &&
3454             (ptgt->m_t_throttle > HOLD_THROTTLE) &&
3455             (ptgt->m_t_ncmds < ptgt->m_t_throttle) &&
3456             (ptgt->m_reset_delay == 0) &&
3457             (ptgt->m_t_nwait == 0) &&
3458             ((cmd->cmd_pkt_flags & FLAG_NOINTR) == 0)) {
3459                 if (mptsas_save_cmd(mpt, cmd) == TRUE) {
3460                         (void) mptsas_start_cmd(mpt, cmd);
3461                 } else {
3462                         mptsas_waitq_add(mpt, cmd);
3463                 }
3464         } else {
3465                 /*
3466                  * Add this pkt to the work queue
3467                  */
3468                 mptsas_waitq_add(mpt, cmd);
3469 
3470                 if (cmd->cmd_pkt_flags & FLAG_NOINTR) {
3471                         (void) mptsas_poll(mpt, cmd, MPTSAS_POLL_TIME);
3472 
3473                         /*
3474                          * Only flush the doneq if this is not a TM
3475                          * cmd.  For TM cmds the flushing of the
3476                          * doneq will be done in those routines.
3477                          */
3478                         if ((cmd->cmd_flags & CFLAG_TM_CMD) == 0) {
3479                                 mptsas_doneq_empty(mpt);
3480                         }
3481                 }
3482         }
3483         return (rval);
3484 }
3485 
3486 int
3487 mptsas_save_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd)
3488 {
3489         mptsas_slots_t *slots = mpt->m_active;
3490         uint_t slot, start_rotor;
3491         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
3492 
3493         ASSERT(MUTEX_HELD(&mpt->m_mutex));
3494 
3495         /*
3496          * Account for reserved TM request slot and reserved SMID of 0.
3497          */
3498         ASSERT(slots->m_n_normal == (mpt->m_max_requests - 2));
3499 
3500         /*
3501          * Find the next available slot, beginning at m_rotor.  If no slot is
3502          * available, we'll return FALSE to indicate that.  This mechanism
3503          * considers only the normal slots, not the reserved slot 0 nor the
3504          * task management slot m_n_normal + 1.  The rotor is left to point to
3505          * the normal slot after the one we select, unless we select the last
3506          * normal slot in which case it returns to slot 1.
3507          */
3508         start_rotor = slots->m_rotor;
3509         do {
3510                 slot = slots->m_rotor++;
3511                 if (slots->m_rotor > slots->m_n_normal)
3512                         slots->m_rotor = 1;
3513 
3514                 if (slots->m_rotor == start_rotor)
3515                         break;
3516         } while (slots->m_slot[slot] != NULL);
3517 
3518         if (slots->m_slot[slot] != NULL)
3519                 return (FALSE);
3520 
3521         ASSERT(slot != 0 && slot <= slots->m_n_normal);
3522 
3523         cmd->cmd_slot = slot;
3524         slots->m_slot[slot] = cmd;
3525         mpt->m_ncmds++;
3526 
3527         /*
3528          * only increment per target ncmds if this is not a
3529          * command that has no target associated with it (i.e. a
3530          * event acknoledgment)
3531          */
3532         if ((cmd->cmd_flags & CFLAG_CMDIOC) == 0) {
3533                 /*
3534                  * Expiration time is set in mptsas_start_cmd
3535                  */
3536                 ptgt->m_t_ncmds++;
3537                 cmd->cmd_active_expiration = 0;
3538         } else {
3539                 /*
3540                  * Initialize expiration time for passthrough commands,
3541                  */
3542                 cmd->cmd_active_expiration = gethrtime() +
3543                     (hrtime_t)cmd->cmd_pkt->pkt_time * NANOSEC;
3544         }
3545         return (TRUE);
3546 }
3547 
3548 /*
3549  * prepare the pkt:
3550  * the pkt may have been resubmitted or just reused so
3551  * initialize some fields and do some checks.
3552  */
3553 static int
3554 mptsas_prepare_pkt(mptsas_cmd_t *cmd)
3555 {
3556         struct scsi_pkt *pkt = CMD2PKT(cmd);
3557 
3558         NDBG1(("mptsas_prepare_pkt: cmd=0x%p", (void *)cmd));
3559 
3560         /*
3561          * Reinitialize some fields that need it; the packet may
3562          * have been resubmitted
3563          */
3564         pkt->pkt_reason = CMD_CMPLT;
3565         pkt->pkt_state = 0;
3566         pkt->pkt_statistics = 0;
3567         pkt->pkt_resid = 0;
3568         cmd->cmd_age = 0;
3569         cmd->cmd_pkt_flags = pkt->pkt_flags;
3570 
3571         /*
3572          * zero status byte.
3573          */
3574         *(pkt->pkt_scbp) = 0;
3575 
3576         if (cmd->cmd_flags & CFLAG_DMAVALID) {
3577                 pkt->pkt_resid = cmd->cmd_dmacount;
3578 
3579                 /*
3580                  * consistent packets need to be sync'ed first
3581                  * (only for data going out)
3582                  */
3583                 if ((cmd->cmd_flags & CFLAG_CMDIOPB) &&
3584                     (cmd->cmd_flags & CFLAG_DMASEND)) {
3585                         (void) ddi_dma_sync(cmd->cmd_dmahandle, 0, 0,
3586                             DDI_DMA_SYNC_FORDEV);
3587                 }
3588         }
3589 
3590         cmd->cmd_flags =
3591             (cmd->cmd_flags & ~(CFLAG_TRANFLAG)) |
3592             CFLAG_PREPARED | CFLAG_IN_TRANSPORT;
3593 
3594         return (TRAN_ACCEPT);
3595 }
3596 
3597 /*
3598  * tran_init_pkt(9E) - allocate scsi_pkt(9S) for command
3599  *
3600  * One of three possibilities:
3601  *      - allocate scsi_pkt
3602  *      - allocate scsi_pkt and DMA resources
3603  *      - allocate DMA resources to an already-allocated pkt
3604  */
3605 static struct scsi_pkt *
3606 mptsas_scsi_init_pkt(struct scsi_address *ap, struct scsi_pkt *pkt,
3607     struct buf *bp, int cmdlen, int statuslen, int tgtlen, int flags,
3608     int (*callback)(), caddr_t arg)
3609 {
3610         mptsas_cmd_t            *cmd, *new_cmd;
3611         mptsas_t                *mpt = ADDR2MPT(ap);
3612         int                     failure = 1;
3613         uint_t                  oldcookiec;
3614         mptsas_target_t         *ptgt = NULL;
3615         int                     rval;
3616         mptsas_tgt_private_t    *tgt_private;
3617         int                     kf;
3618 
3619         kf = (callback == SLEEP_FUNC)? KM_SLEEP: KM_NOSLEEP;
3620 
3621         tgt_private = (mptsas_tgt_private_t *)ap->a_hba_tran->
3622             tran_tgt_private;
3623         ASSERT(tgt_private != NULL);
3624         if (tgt_private == NULL) {
3625                 return (NULL);
3626         }
3627         ptgt = tgt_private->t_private;
3628         ASSERT(ptgt != NULL);
3629         if (ptgt == NULL)
3630                 return (NULL);
3631         ap->a_target = ptgt->m_devhdl;
3632         ap->a_lun = tgt_private->t_lun;
3633 
3634         ASSERT(callback == NULL_FUNC || callback == SLEEP_FUNC);
3635 #ifdef MPTSAS_TEST_EXTRN_ALLOC
3636         statuslen *= 100; tgtlen *= 4;
3637 #endif
3638         NDBG3(("mptsas_scsi_init_pkt:\n"
3639             "\ttgt=%d in=0x%p bp=0x%p clen=%d slen=%d tlen=%d flags=%x",
3640             ap->a_target, (void *)pkt, (void *)bp,
3641             cmdlen, statuslen, tgtlen, flags));
3642 
3643         /*
3644          * Allocate the new packet.
3645          */
3646         if (pkt == NULL) {
3647                 ddi_dma_handle_t        save_dma_handle;
3648 
3649                 cmd = kmem_cache_alloc(mpt->m_kmem_cache, kf);
3650 
3651                 if (cmd) {
3652                         save_dma_handle = cmd->cmd_dmahandle;
3653                         bzero(cmd, sizeof (*cmd) + scsi_pkt_size());
3654                         cmd->cmd_dmahandle = save_dma_handle;
3655 
3656                         pkt = (void *)((uchar_t *)cmd +
3657                             sizeof (struct mptsas_cmd));
3658                         pkt->pkt_ha_private = (opaque_t)cmd;
3659                         pkt->pkt_address = *ap;
3660                         pkt->pkt_private = (opaque_t)cmd->cmd_pkt_private;
3661                         pkt->pkt_scbp = (opaque_t)&cmd->cmd_scb;
3662                         pkt->pkt_cdbp = (opaque_t)&cmd->cmd_cdb;
3663                         cmd->cmd_pkt = (struct scsi_pkt *)pkt;
3664                         cmd->cmd_cdblen = (uchar_t)cmdlen;
3665                         cmd->cmd_scblen = statuslen;
3666                         cmd->cmd_rqslen = SENSE_LENGTH;
3667                         cmd->cmd_tgt_addr = ptgt;
3668                         failure = 0;
3669                 }
3670 
3671                 if (failure || (cmdlen > sizeof (cmd->cmd_cdb)) ||
3672                     (tgtlen > PKT_PRIV_LEN) ||
3673                     (statuslen > EXTCMDS_STATUS_SIZE)) {
3674                         if (failure == 0) {
3675                                 /*
3676                                  * if extern alloc fails, all will be
3677                                  * deallocated, including cmd
3678                                  */
3679                                 failure = mptsas_pkt_alloc_extern(mpt, cmd,
3680                                     cmdlen, tgtlen, statuslen, kf);
3681                         }
3682                         if (failure) {
3683                                 /*
3684                                  * if extern allocation fails, it will
3685                                  * deallocate the new pkt as well
3686                                  */
3687                                 return (NULL);
3688                         }
3689                 }
3690                 new_cmd = cmd;
3691 
3692         } else {
3693                 cmd = PKT2CMD(pkt);
3694                 new_cmd = NULL;
3695         }
3696 
3697 
3698         /* grab cmd->cmd_cookiec here as oldcookiec */
3699 
3700         oldcookiec = cmd->cmd_cookiec;
3701 
3702         /*
3703          * If the dma was broken up into PARTIAL transfers cmd_nwin will be
3704          * greater than 0 and we'll need to grab the next dma window
3705          */
3706         /*
3707          * SLM-not doing extra command frame right now; may add later
3708          */
3709 
3710         if (cmd->cmd_nwin > 0) {
3711 
3712                 /*
3713                  * Make sure we havn't gone past the the total number
3714                  * of windows
3715                  */
3716                 if (++cmd->cmd_winindex >= cmd->cmd_nwin) {
3717                         return (NULL);
3718                 }
3719                 if (ddi_dma_getwin(cmd->cmd_dmahandle, cmd->cmd_winindex,
3720                     &cmd->cmd_dma_offset, &cmd->cmd_dma_len,
3721                     &cmd->cmd_cookie, &cmd->cmd_cookiec) == DDI_FAILURE) {
3722                         return (NULL);
3723                 }
3724                 goto get_dma_cookies;
3725         }
3726 
3727 
3728         if (flags & PKT_XARQ) {
3729                 cmd->cmd_flags |= CFLAG_XARQ;
3730         }
3731 
3732         /*
3733          * DMA resource allocation.  This version assumes your
3734          * HBA has some sort of bus-mastering or onboard DMA capability, with a
3735          * scatter-gather list of length MPTSAS_MAX_DMA_SEGS, as given in the
3736          * ddi_dma_attr_t structure and passed to scsi_impl_dmaget.
3737          */
3738         if (bp && (bp->b_bcount != 0) &&
3739             (cmd->cmd_flags & CFLAG_DMAVALID) == 0) {
3740 
3741                 int     cnt, dma_flags;
3742                 mptti_t *dmap;          /* ptr to the S/G list */
3743 
3744                 /*
3745                  * Set up DMA memory and position to the next DMA segment.
3746                  */
3747                 ASSERT(cmd->cmd_dmahandle != NULL);
3748 
3749                 if (bp->b_flags & B_READ) {
3750                         dma_flags = DDI_DMA_READ;
3751                         cmd->cmd_flags &= ~CFLAG_DMASEND;
3752                 } else {
3753                         dma_flags = DDI_DMA_WRITE;
3754                         cmd->cmd_flags |= CFLAG_DMASEND;
3755                 }
3756                 if (flags & PKT_CONSISTENT) {
3757                         cmd->cmd_flags |= CFLAG_CMDIOPB;
3758                         dma_flags |= DDI_DMA_CONSISTENT;
3759                 }
3760 
3761                 if (flags & PKT_DMA_PARTIAL) {
3762                         dma_flags |= DDI_DMA_PARTIAL;
3763                 }
3764 
3765                 /*
3766                  * workaround for byte hole issue on psycho and
3767                  * schizo pre 2.1
3768                  */
3769                 if ((bp->b_flags & B_READ) && ((bp->b_flags &
3770                     (B_PAGEIO|B_REMAPPED)) != B_PAGEIO) &&
3771                     ((uintptr_t)bp->b_un.b_addr & 0x7)) {
3772                         dma_flags |= DDI_DMA_CONSISTENT;
3773                 }
3774 
3775                 rval = ddi_dma_buf_bind_handle(cmd->cmd_dmahandle, bp,
3776                     dma_flags, callback, arg,
3777                     &cmd->cmd_cookie, &cmd->cmd_cookiec);
3778                 if (rval == DDI_DMA_PARTIAL_MAP) {
3779                         (void) ddi_dma_numwin(cmd->cmd_dmahandle,
3780                             &cmd->cmd_nwin);
3781                         cmd->cmd_winindex = 0;
3782                         (void) ddi_dma_getwin(cmd->cmd_dmahandle,
3783                             cmd->cmd_winindex, &cmd->cmd_dma_offset,
3784                             &cmd->cmd_dma_len, &cmd->cmd_cookie,
3785                             &cmd->cmd_cookiec);
3786                 } else if (rval && (rval != DDI_DMA_MAPPED)) {
3787                         switch (rval) {
3788                         case DDI_DMA_NORESOURCES:
3789                                 bioerror(bp, 0);
3790                                 break;
3791                         case DDI_DMA_BADATTR:
3792                         case DDI_DMA_NOMAPPING:
3793                                 bioerror(bp, EFAULT);
3794                                 break;
3795                         case DDI_DMA_TOOBIG:
3796                         default:
3797                                 bioerror(bp, EINVAL);
3798                                 break;
3799                         }
3800                         cmd->cmd_flags &= ~CFLAG_DMAVALID;
3801                         if (new_cmd) {
3802                                 mptsas_scsi_destroy_pkt(ap, pkt);
3803                         }
3804                         return ((struct scsi_pkt *)NULL);
3805                 }
3806 
3807 get_dma_cookies:
3808                 cmd->cmd_flags |= CFLAG_DMAVALID;
3809                 ASSERT(cmd->cmd_cookiec > 0);
3810 
3811                 if (cmd->cmd_cookiec > MPTSAS_MAX_CMD_SEGS) {
3812                         mptsas_log(mpt, CE_NOTE, "large cookiec received %d\n",
3813                             cmd->cmd_cookiec);
3814                         bioerror(bp, EINVAL);
3815                         if (new_cmd) {
3816                                 mptsas_scsi_destroy_pkt(ap, pkt);
3817                         }
3818                         return ((struct scsi_pkt *)NULL);
3819                 }
3820 
3821                 /*
3822                  * Allocate extra SGL buffer if needed.
3823                  */
3824                 if ((cmd->cmd_cookiec > MPTSAS_MAX_FRAME_SGES64(mpt)) &&
3825                     (cmd->cmd_extra_frames == NULL)) {
3826                         if (mptsas_alloc_extra_sgl_frame(mpt, cmd) ==
3827                             DDI_FAILURE) {
3828                                 mptsas_log(mpt, CE_WARN, "MPT SGL mem alloc "
3829                                     "failed");
3830                                 bioerror(bp, ENOMEM);
3831                                 if (new_cmd) {
3832                                         mptsas_scsi_destroy_pkt(ap, pkt);
3833                                 }
3834                                 return ((struct scsi_pkt *)NULL);
3835                         }
3836                 }
3837 
3838                 /*
3839                  * Always use scatter-gather transfer
3840                  * Use the loop below to store physical addresses of
3841                  * DMA segments, from the DMA cookies, into your HBA's
3842                  * scatter-gather list.
3843                  * We need to ensure we have enough kmem alloc'd
3844                  * for the sg entries since we are no longer using an
3845                  * array inside mptsas_cmd_t.
3846                  *
3847                  * We check cmd->cmd_cookiec against oldcookiec so
3848                  * the scatter-gather list is correctly allocated
3849                  */
3850 
3851                 if (oldcookiec != cmd->cmd_cookiec) {
3852                         if (cmd->cmd_sg != (mptti_t *)NULL) {
3853                                 kmem_free(cmd->cmd_sg, sizeof (mptti_t) *
3854                                     oldcookiec);
3855                                 cmd->cmd_sg = NULL;
3856                         }
3857                 }
3858 
3859                 if (cmd->cmd_sg == (mptti_t *)NULL) {
3860                         cmd->cmd_sg = kmem_alloc((size_t)(sizeof (mptti_t)*
3861                             cmd->cmd_cookiec), kf);
3862 
3863                         if (cmd->cmd_sg == (mptti_t *)NULL) {
3864                                 mptsas_log(mpt, CE_WARN,
3865                                     "unable to kmem_alloc enough memory "
3866                                     "for scatter/gather list");
3867                 /*
3868                  * if we have an ENOMEM condition we need to behave
3869                  * the same way as the rest of this routine
3870                  */
3871 
3872                                 bioerror(bp, ENOMEM);
3873                                 if (new_cmd) {
3874                                         mptsas_scsi_destroy_pkt(ap, pkt);
3875                                 }
3876                                 return ((struct scsi_pkt *)NULL);
3877                         }
3878                 }
3879 
3880                 dmap = cmd->cmd_sg;
3881 
3882                 ASSERT(cmd->cmd_cookie.dmac_size != 0);
3883 
3884                 /*
3885                  * store the first segment into the S/G list
3886                  */
3887                 dmap->count = cmd->cmd_cookie.dmac_size;
3888                 dmap->addr.address64.Low = (uint32_t)
3889                     (cmd->cmd_cookie.dmac_laddress & 0xffffffffull);
3890                 dmap->addr.address64.High = (uint32_t)
3891                     (cmd->cmd_cookie.dmac_laddress >> 32);
3892 
3893                 /*
3894                  * dmacount counts the size of the dma for this window
3895                  * (if partial dma is being used).  totaldmacount
3896                  * keeps track of the total amount of dma we have
3897                  * transferred for all the windows (needed to calculate
3898                  * the resid value below).
3899                  */
3900                 cmd->cmd_dmacount = cmd->cmd_cookie.dmac_size;
3901                 cmd->cmd_totaldmacount += cmd->cmd_cookie.dmac_size;
3902 
3903                 /*
3904                  * We already stored the first DMA scatter gather segment,
3905                  * start at 1 if we need to store more.
3906                  */
3907                 for (cnt = 1; cnt < cmd->cmd_cookiec; cnt++) {
3908                         /*
3909                          * Get next DMA cookie
3910                          */
3911                         ddi_dma_nextcookie(cmd->cmd_dmahandle,
3912                             &cmd->cmd_cookie);
3913                         dmap++;
3914 
3915                         cmd->cmd_dmacount += cmd->cmd_cookie.dmac_size;
3916                         cmd->cmd_totaldmacount += cmd->cmd_cookie.dmac_size;
3917 
3918                         /*
3919                          * store the segment parms into the S/G list
3920                          */
3921                         dmap->count = cmd->cmd_cookie.dmac_size;
3922                         dmap->addr.address64.Low = (uint32_t)
3923                             (cmd->cmd_cookie.dmac_laddress & 0xffffffffull);
3924                         dmap->addr.address64.High = (uint32_t)
3925                             (cmd->cmd_cookie.dmac_laddress >> 32);
3926                 }
3927 
3928                 /*
3929                  * If this was partially allocated we set the resid
3930                  * the amount of data NOT transferred in this window
3931                  * If there is only one window, the resid will be 0
3932                  */
3933                 pkt->pkt_resid = (bp->b_bcount - cmd->cmd_totaldmacount);
3934                 NDBG3(("mptsas_scsi_init_pkt: cmd_dmacount=%d.",
3935                     cmd->cmd_dmacount));
3936         }
3937         return (pkt);
3938 }
3939 
3940 /*
3941  * tran_destroy_pkt(9E) - scsi_pkt(9s) deallocation
3942  *
3943  * Notes:
3944  *      - also frees DMA resources if allocated
3945  *      - implicit DMA synchonization
3946  */
3947 static void
3948 mptsas_scsi_destroy_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
3949 {
3950         mptsas_cmd_t    *cmd = PKT2CMD(pkt);
3951         mptsas_t        *mpt = ADDR2MPT(ap);
3952 
3953         NDBG3(("mptsas_scsi_destroy_pkt: target=%d pkt=0x%p",
3954             ap->a_target, (void *)pkt));
3955 
3956         if (cmd->cmd_flags & CFLAG_DMAVALID) {
3957                 (void) ddi_dma_unbind_handle(cmd->cmd_dmahandle);
3958                 cmd->cmd_flags &= ~CFLAG_DMAVALID;
3959         }
3960 
3961         if (cmd->cmd_sg) {
3962                 kmem_free(cmd->cmd_sg, sizeof (mptti_t) * cmd->cmd_cookiec);
3963                 cmd->cmd_sg = NULL;
3964         }
3965 
3966         mptsas_free_extra_sgl_frame(mpt, cmd);
3967 
3968         if ((cmd->cmd_flags &
3969             (CFLAG_FREE | CFLAG_CDBEXTERN | CFLAG_PRIVEXTERN |
3970             CFLAG_SCBEXTERN)) == 0) {
3971                 cmd->cmd_flags = CFLAG_FREE;
3972                 kmem_cache_free(mpt->m_kmem_cache, (void *)cmd);
3973         } else {
3974                 mptsas_pkt_destroy_extern(mpt, cmd);
3975         }
3976 }
3977 
3978 /*
3979  * kmem cache constructor and destructor:
3980  * When constructing, we bzero the cmd and allocate the dma handle
3981  * When destructing, just free the dma handle
3982  */
3983 static int
3984 mptsas_kmem_cache_constructor(void *buf, void *cdrarg, int kmflags)
3985 {
3986         mptsas_cmd_t            *cmd = buf;
3987         mptsas_t                *mpt  = cdrarg;
3988         int                     (*callback)(caddr_t);
3989 
3990         callback = (kmflags == KM_SLEEP)? DDI_DMA_SLEEP: DDI_DMA_DONTWAIT;
3991 
3992         NDBG4(("mptsas_kmem_cache_constructor"));
3993 
3994         /*
3995          * allocate a dma handle
3996          */
3997         if ((ddi_dma_alloc_handle(mpt->m_dip, &mpt->m_io_dma_attr, callback,
3998             NULL, &cmd->cmd_dmahandle)) != DDI_SUCCESS) {
3999                 cmd->cmd_dmahandle = NULL;
4000                 return (-1);
4001         }
4002         return (0);
4003 }
4004 
4005 static void
4006 mptsas_kmem_cache_destructor(void *buf, void *cdrarg)
4007 {
4008 #ifndef __lock_lint
4009         _NOTE(ARGUNUSED(cdrarg))
4010 #endif
4011         mptsas_cmd_t    *cmd = buf;
4012 
4013         NDBG4(("mptsas_kmem_cache_destructor"));
4014 
4015         if (cmd->cmd_dmahandle) {
4016                 ddi_dma_free_handle(&cmd->cmd_dmahandle);
4017                 cmd->cmd_dmahandle = NULL;
4018         }
4019 }
4020 
4021 static int
4022 mptsas_cache_frames_constructor(void *buf, void *cdrarg, int kmflags)
4023 {
4024         mptsas_cache_frames_t   *p = buf;
4025         mptsas_t                *mpt = cdrarg;
4026         ddi_dma_attr_t          frame_dma_attr;
4027         size_t                  mem_size, alloc_len;
4028         ddi_dma_cookie_t        cookie;
4029         uint_t                  ncookie;
4030         int (*callback)(caddr_t) = (kmflags == KM_SLEEP)
4031             ? DDI_DMA_SLEEP: DDI_DMA_DONTWAIT;
4032 
4033         frame_dma_attr = mpt->m_msg_dma_attr;
4034         frame_dma_attr.dma_attr_align = 0x10;
4035         frame_dma_attr.dma_attr_sgllen = 1;
4036 
4037         if (ddi_dma_alloc_handle(mpt->m_dip, &frame_dma_attr, callback, NULL,
4038             &p->m_dma_hdl) != DDI_SUCCESS) {
4039                 mptsas_log(mpt, CE_WARN, "Unable to allocate dma handle for"
4040                     " extra SGL.");
4041                 return (DDI_FAILURE);
4042         }
4043 
4044         mem_size = (mpt->m_max_request_frames - 1) * mpt->m_req_frame_size;
4045 
4046         if (ddi_dma_mem_alloc(p->m_dma_hdl, mem_size, &mpt->m_dev_acc_attr,
4047             DDI_DMA_CONSISTENT, callback, NULL, (caddr_t *)&p->m_frames_addr,
4048             &alloc_len, &p->m_acc_hdl) != DDI_SUCCESS) {
4049                 ddi_dma_free_handle(&p->m_dma_hdl);
4050                 p->m_dma_hdl = NULL;
4051                 mptsas_log(mpt, CE_WARN, "Unable to allocate dma memory for"
4052                     " extra SGL.");
4053                 return (DDI_FAILURE);
4054         }
4055 
4056         if (ddi_dma_addr_bind_handle(p->m_dma_hdl, NULL, p->m_frames_addr,
4057             alloc_len, DDI_DMA_RDWR | DDI_DMA_CONSISTENT, callback, NULL,
4058             &cookie, &ncookie) != DDI_DMA_MAPPED) {
4059                 (void) ddi_dma_mem_free(&p->m_acc_hdl);
4060                 ddi_dma_free_handle(&p->m_dma_hdl);
4061                 p->m_dma_hdl = NULL;
4062                 mptsas_log(mpt, CE_WARN, "Unable to bind DMA resources for"
4063                     " extra SGL");
4064                 return (DDI_FAILURE);
4065         }
4066 
4067         /*
4068          * Store the SGL memory address.  This chip uses this
4069          * address to dma to and from the driver.  The second
4070          * address is the address mpt uses to fill in the SGL.
4071          */
4072         p->m_phys_addr = cookie.dmac_laddress;
4073 
4074         return (DDI_SUCCESS);
4075 }
4076 
4077 static void
4078 mptsas_cache_frames_destructor(void *buf, void *cdrarg)
4079 {
4080 #ifndef __lock_lint
4081         _NOTE(ARGUNUSED(cdrarg))
4082 #endif
4083         mptsas_cache_frames_t   *p = buf;
4084         if (p->m_dma_hdl != NULL) {
4085                 (void) ddi_dma_unbind_handle(p->m_dma_hdl);
4086                 (void) ddi_dma_mem_free(&p->m_acc_hdl);
4087                 ddi_dma_free_handle(&p->m_dma_hdl);
4088                 p->m_phys_addr = NULL;
4089                 p->m_frames_addr = NULL;
4090                 p->m_dma_hdl = NULL;
4091                 p->m_acc_hdl = NULL;
4092         }
4093 
4094 }
4095 
4096 /*
4097  * Figure out if we need to use a different method for the request
4098  * sense buffer and allocate from the map if necessary.
4099  */
4100 static boolean_t
4101 mptsas_cmdarqsize(mptsas_t *mpt, mptsas_cmd_t *cmd, size_t senselength, int kf)
4102 {
4103         if (senselength > mpt->m_req_sense_size) {
4104                 unsigned long i;
4105 
4106                 /* Sense length is limited to an 8 bit value in MPI Spec. */
4107                 if (senselength > 255)
4108                         senselength = 255;
4109                 cmd->cmd_extrqschunks = (senselength +
4110                     (mpt->m_req_sense_size - 1))/mpt->m_req_sense_size;
4111                 i = (kf == KM_SLEEP ? rmalloc_wait : rmalloc)
4112                     (mpt->m_erqsense_map, cmd->cmd_extrqschunks);
4113 
4114                 if (i == 0)
4115                         return (B_FALSE);
4116 
4117                 cmd->cmd_extrqslen = (uint16_t)senselength;
4118                 cmd->cmd_extrqsidx = i - 1;
4119                 cmd->cmd_arq_buf = mpt->m_extreq_sense +
4120                     (cmd->cmd_extrqsidx * mpt->m_req_sense_size);
4121         } else {
4122                 cmd->cmd_rqslen = (uchar_t)senselength;
4123         }
4124 
4125         return (B_TRUE);
4126 }
4127 
4128 /*
4129  * allocate and deallocate external pkt space (ie. not part of mptsas_cmd)
4130  * for non-standard length cdb, pkt_private, status areas
4131  * if allocation fails, then deallocate all external space and the pkt
4132  */
4133 /* ARGSUSED */
4134 static int
4135 mptsas_pkt_alloc_extern(mptsas_t *mpt, mptsas_cmd_t *cmd,
4136     int cmdlen, int tgtlen, int statuslen, int kf)
4137 {
4138         caddr_t                 cdbp, scbp, tgt;
4139 
4140         NDBG3(("mptsas_pkt_alloc_extern: "
4141             "cmd=0x%p cmdlen=%d tgtlen=%d statuslen=%d kf=%x",
4142             (void *)cmd, cmdlen, tgtlen, statuslen, kf));
4143 
4144         tgt = cdbp = scbp = NULL;
4145         cmd->cmd_scblen              = statuslen;
4146         cmd->cmd_privlen     = (uchar_t)tgtlen;
4147 
4148         if (cmdlen > sizeof (cmd->cmd_cdb)) {
4149                 if ((cdbp = kmem_zalloc((size_t)cmdlen, kf)) == NULL) {
4150                         goto fail;
4151                 }
4152                 cmd->cmd_pkt->pkt_cdbp = (opaque_t)cdbp;
4153                 cmd->cmd_flags |= CFLAG_CDBEXTERN;
4154         }
4155         if (tgtlen > PKT_PRIV_LEN) {
4156                 if ((tgt = kmem_zalloc((size_t)tgtlen, kf)) == NULL) {
4157                         goto fail;
4158                 }
4159                 cmd->cmd_flags |= CFLAG_PRIVEXTERN;
4160                 cmd->cmd_pkt->pkt_private = tgt;
4161         }
4162         if (statuslen > EXTCMDS_STATUS_SIZE) {
4163                 if ((scbp = kmem_zalloc((size_t)statuslen, kf)) == NULL) {
4164                         goto fail;
4165                 }
4166                 cmd->cmd_flags |= CFLAG_SCBEXTERN;
4167                 cmd->cmd_pkt->pkt_scbp = (opaque_t)scbp;
4168 
4169                 /* allocate sense data buf for DMA */
4170                 if (mptsas_cmdarqsize(mpt, cmd, statuslen -
4171                     MPTSAS_GET_ITEM_OFF(struct scsi_arq_status, sts_sensedata),
4172                     kf) == B_FALSE)
4173                         goto fail;
4174         }
4175         return (0);
4176 fail:
4177         mptsas_pkt_destroy_extern(mpt, cmd);
4178         return (1);
4179 }
4180 
4181 /*
4182  * deallocate external pkt space and deallocate the pkt
4183  */
4184 static void
4185 mptsas_pkt_destroy_extern(mptsas_t *mpt, mptsas_cmd_t *cmd)
4186 {
4187         NDBG3(("mptsas_pkt_destroy_extern: cmd=0x%p", (void *)cmd));
4188 
4189         if (cmd->cmd_flags & CFLAG_FREE) {
4190                 mptsas_log(mpt, CE_PANIC,
4191                     "mptsas_pkt_destroy_extern: freeing free packet");
4192                 _NOTE(NOT_REACHED)
4193                 /* NOTREACHED */
4194         }
4195         if (cmd->cmd_extrqslen != 0) {
4196                 rmfree(mpt->m_erqsense_map, cmd->cmd_extrqschunks,
4197                     cmd->cmd_extrqsidx + 1);
4198         }
4199         if (cmd->cmd_flags & CFLAG_CDBEXTERN) {
4200                 kmem_free(cmd->cmd_pkt->pkt_cdbp, (size_t)cmd->cmd_cdblen);
4201         }
4202         if (cmd->cmd_flags & CFLAG_SCBEXTERN) {
4203                 kmem_free(cmd->cmd_pkt->pkt_scbp, (size_t)cmd->cmd_scblen);
4204         }
4205         if (cmd->cmd_flags & CFLAG_PRIVEXTERN) {
4206                 kmem_free(cmd->cmd_pkt->pkt_private, (size_t)cmd->cmd_privlen);
4207         }
4208         cmd->cmd_flags = CFLAG_FREE;
4209         kmem_cache_free(mpt->m_kmem_cache, (void *)cmd);
4210 }
4211 
4212 /*
4213  * tran_sync_pkt(9E) - explicit DMA synchronization
4214  */
4215 /*ARGSUSED*/
4216 static void
4217 mptsas_scsi_sync_pkt(struct scsi_address *ap, struct scsi_pkt *pkt)
4218 {
4219         mptsas_cmd_t    *cmd = PKT2CMD(pkt);
4220 
4221         NDBG3(("mptsas_scsi_sync_pkt: target=%d, pkt=0x%p",
4222             ap->a_target, (void *)pkt));
4223 
4224         if (cmd->cmd_dmahandle) {
4225                 (void) ddi_dma_sync(cmd->cmd_dmahandle, 0, 0,
4226                     (cmd->cmd_flags & CFLAG_DMASEND) ?
4227                     DDI_DMA_SYNC_FORDEV : DDI_DMA_SYNC_FORCPU);
4228         }
4229 }
4230 
4231 /*
4232  * tran_dmafree(9E) - deallocate DMA resources allocated for command
4233  */
4234 /*ARGSUSED*/
4235 static void
4236 mptsas_scsi_dmafree(struct scsi_address *ap, struct scsi_pkt *pkt)
4237 {
4238         mptsas_cmd_t    *cmd = PKT2CMD(pkt);
4239         mptsas_t        *mpt = ADDR2MPT(ap);
4240 
4241         NDBG3(("mptsas_scsi_dmafree: target=%d pkt=0x%p",
4242             ap->a_target, (void *)pkt));
4243 
4244         if (cmd->cmd_flags & CFLAG_DMAVALID) {
4245                 (void) ddi_dma_unbind_handle(cmd->cmd_dmahandle);
4246                 cmd->cmd_flags &= ~CFLAG_DMAVALID;
4247         }
4248 
4249         mptsas_free_extra_sgl_frame(mpt, cmd);
4250 }
4251 
4252 static void
4253 mptsas_pkt_comp(struct scsi_pkt *pkt, mptsas_cmd_t *cmd)
4254 {
4255         if ((cmd->cmd_flags & CFLAG_CMDIOPB) &&
4256             (!(cmd->cmd_flags & CFLAG_DMASEND))) {
4257                 (void) ddi_dma_sync(cmd->cmd_dmahandle, 0, 0,
4258                     DDI_DMA_SYNC_FORCPU);
4259         }
4260         (*pkt->pkt_comp)(pkt);
4261 }
4262 
4263 static void
4264 mptsas_sge_mainframe(mptsas_cmd_t *cmd, pMpi2SCSIIORequest_t frame,
4265     ddi_acc_handle_t acc_hdl, uint_t cookiec, uint32_t end_flags)
4266 {
4267         pMpi2SGESimple64_t      sge;
4268         mptti_t                 *dmap;
4269         uint32_t                flags;
4270 
4271         dmap = cmd->cmd_sg;
4272 
4273         sge = (pMpi2SGESimple64_t)(&frame->SGL);
4274         while (cookiec--) {
4275                 ddi_put32(acc_hdl,
4276                     &sge->Address.Low, dmap->addr.address64.Low);
4277                 ddi_put32(acc_hdl,
4278                     &sge->Address.High, dmap->addr.address64.High);
4279                 ddi_put32(acc_hdl, &sge->FlagsLength,
4280                     dmap->count);
4281                 flags = ddi_get32(acc_hdl, &sge->FlagsLength);
4282                 flags |= ((uint32_t)
4283                     (MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
4284                     MPI2_SGE_FLAGS_SYSTEM_ADDRESS |
4285                     MPI2_SGE_FLAGS_64_BIT_ADDRESSING) <<
4286                     MPI2_SGE_FLAGS_SHIFT);
4287 
4288                 /*
4289                  * If this is the last cookie, we set the flags
4290                  * to indicate so
4291                  */
4292                 if (cookiec == 0) {
4293                         flags |= end_flags;
4294                 }
4295                 if (cmd->cmd_flags & CFLAG_DMASEND) {
4296                         flags |= (MPI2_SGE_FLAGS_HOST_TO_IOC <<
4297                             MPI2_SGE_FLAGS_SHIFT);
4298                 } else {
4299                         flags |= (MPI2_SGE_FLAGS_IOC_TO_HOST <<
4300                             MPI2_SGE_FLAGS_SHIFT);
4301                 }
4302                 ddi_put32(acc_hdl, &sge->FlagsLength, flags);
4303                 dmap++;
4304                 sge++;
4305         }
4306 }
4307 
4308 static void
4309 mptsas_sge_chain(mptsas_t *mpt, mptsas_cmd_t *cmd,
4310     pMpi2SCSIIORequest_t frame, ddi_acc_handle_t acc_hdl)
4311 {
4312         pMpi2SGESimple64_t      sge;
4313         pMpi2SGEChain64_t       sgechain;
4314         uint64_t                nframe_phys_addr;
4315         uint_t                  cookiec;
4316         mptti_t                 *dmap;
4317         uint32_t                flags;
4318 
4319         /*
4320          * Save the number of entries in the DMA
4321          * Scatter/Gather list
4322          */
4323         cookiec = cmd->cmd_cookiec;
4324 
4325         /*
4326          * Hereby we start to deal with multiple frames.
4327          * The process is as follows:
4328          * 1. Determine how many frames are needed for SGL element
4329          *    storage; Note that all frames are stored in contiguous
4330          *    memory space and in 64-bit DMA mode each element is
4331          *    3 double-words (12 bytes) long.
4332          * 2. Fill up the main frame. We need to do this separately
4333          *    since it contains the SCSI IO request header and needs
4334          *    dedicated processing. Note that the last 4 double-words
4335          *    of the SCSI IO header is for SGL element storage
4336          *    (MPI2_SGE_IO_UNION).
4337          * 3. Fill the chain element in the main frame, so the DMA
4338          *    engine can use the following frames.
4339          * 4. Enter a loop to fill the remaining frames. Note that the
4340          *    last frame contains no chain element.  The remaining
4341          *    frames go into the mpt SGL buffer allocated on the fly,
4342          *    not immediately following the main message frame, as in
4343          *    Gen1.
4344          * Some restrictions:
4345          * 1. For 64-bit DMA, the simple element and chain element
4346          *    are both of 3 double-words (12 bytes) in size, even
4347          *    though all frames are stored in the first 4G of mem
4348          *    range and the higher 32-bits of the address are always 0.
4349          * 2. On some controllers (like the 1064/1068), a frame can
4350          *    hold SGL elements with the last 1 or 2 double-words
4351          *    (4 or 8 bytes) un-used. On these controllers, we should
4352          *    recognize that there's not enough room for another SGL
4353          *    element and move the sge pointer to the next frame.
4354          */
4355         int                     i, j, k, l, frames, sgemax;
4356         int                     temp;
4357         uint8_t                 chainflags;
4358         uint16_t                chainlength;
4359         mptsas_cache_frames_t   *p;
4360 
4361         /*
4362          * Sgemax is the number of SGE's that will fit
4363          * each extra frame and frames is total
4364          * number of frames we'll need.  1 sge entry per
4365          * frame is reseverd for the chain element thus the -1 below.
4366          */
4367         sgemax = ((mpt->m_req_frame_size / sizeof (MPI2_SGE_SIMPLE64))
4368             - 1);
4369         temp = (cookiec - (MPTSAS_MAX_FRAME_SGES64(mpt) - 1)) / sgemax;
4370 
4371         /*
4372          * A little check to see if we need to round up the number
4373          * of frames we need
4374          */
4375         if ((cookiec - (MPTSAS_MAX_FRAME_SGES64(mpt) - 1)) - (temp *
4376             sgemax) > 1) {
4377                 frames = (temp + 1);
4378         } else {
4379                 frames = temp;
4380         }
4381         dmap = cmd->cmd_sg;
4382         sge = (pMpi2SGESimple64_t)(&frame->SGL);
4383 
4384         /*
4385          * First fill in the main frame
4386          */
4387         j = MPTSAS_MAX_FRAME_SGES64(mpt) - 1;
4388         mptsas_sge_mainframe(cmd, frame, acc_hdl, j,
4389             ((uint32_t)(MPI2_SGE_FLAGS_LAST_ELEMENT) <<
4390             MPI2_SGE_FLAGS_SHIFT));
4391         dmap += j;
4392         sge += j;
4393         j++;
4394 
4395         /*
4396          * Fill in the chain element in the main frame.
4397          * About calculation on ChainOffset:
4398          * 1. Struct msg_scsi_io_request has 4 double-words (16 bytes)
4399          *    in the end reserved for SGL element storage
4400          *    (MPI2_SGE_IO_UNION); we should count it in our
4401          *    calculation.  See its definition in the header file.
4402          * 2. Constant j is the counter of the current SGL element
4403          *    that will be processed, and (j - 1) is the number of
4404          *    SGL elements that have been processed (stored in the
4405          *    main frame).
4406          * 3. ChainOffset value should be in units of double-words (4
4407          *    bytes) so the last value should be divided by 4.
4408          */
4409         ddi_put8(acc_hdl, &frame->ChainOffset,
4410             (sizeof (MPI2_SCSI_IO_REQUEST) -
4411             sizeof (MPI2_SGE_IO_UNION) +
4412             (j - 1) * sizeof (MPI2_SGE_SIMPLE64)) >> 2);
4413         sgechain = (pMpi2SGEChain64_t)sge;
4414         chainflags = (MPI2_SGE_FLAGS_CHAIN_ELEMENT |
4415             MPI2_SGE_FLAGS_SYSTEM_ADDRESS |
4416             MPI2_SGE_FLAGS_64_BIT_ADDRESSING);
4417         ddi_put8(acc_hdl, &sgechain->Flags, chainflags);
4418 
4419         /*
4420          * The size of the next frame is the accurate size of space
4421          * (in bytes) used to store the SGL elements. j is the counter
4422          * of SGL elements. (j - 1) is the number of SGL elements that
4423          * have been processed (stored in frames).
4424          */
4425         if (frames >= 2) {
4426                 ASSERT(mpt->m_req_frame_size >= sizeof (MPI2_SGE_SIMPLE64));
4427                 chainlength = mpt->m_req_frame_size /
4428                     sizeof (MPI2_SGE_SIMPLE64) *
4429                     sizeof (MPI2_SGE_SIMPLE64);
4430         } else {
4431                 chainlength = ((cookiec - (j - 1)) *
4432                     sizeof (MPI2_SGE_SIMPLE64));
4433         }
4434 
4435         p = cmd->cmd_extra_frames;
4436 
4437         ddi_put16(acc_hdl, &sgechain->Length, chainlength);
4438         ddi_put32(acc_hdl, &sgechain->Address.Low, p->m_phys_addr);
4439         ddi_put32(acc_hdl, &sgechain->Address.High, p->m_phys_addr >> 32);
4440 
4441         /*
4442          * If there are more than 2 frames left we have to
4443          * fill in the next chain offset to the location of
4444          * the chain element in the next frame.
4445          * sgemax is the number of simple elements in an extra
4446          * frame. Note that the value NextChainOffset should be
4447          * in double-words (4 bytes).
4448          */
4449         if (frames >= 2) {
4450                 ddi_put8(acc_hdl, &sgechain->NextChainOffset,
4451                     (sgemax * sizeof (MPI2_SGE_SIMPLE64)) >> 2);
4452         } else {
4453                 ddi_put8(acc_hdl, &sgechain->NextChainOffset, 0);
4454         }
4455 
4456         /*
4457          * Jump to next frame;
4458          * Starting here, chain buffers go into the per command SGL.
4459          * This buffer is allocated when chain buffers are needed.
4460          */
4461         sge = (pMpi2SGESimple64_t)p->m_frames_addr;
4462         i = cookiec;
4463 
4464         /*
4465          * Start filling in frames with SGE's.  If we
4466          * reach the end of frame and still have SGE's
4467          * to fill we need to add a chain element and
4468          * use another frame.  j will be our counter
4469          * for what cookie we are at and i will be
4470          * the total cookiec. k is the current frame
4471          */
4472         for (k = 1; k <= frames; k++) {
4473                 for (l = 1; (l <= (sgemax + 1)) && (j <= i); j++, l++) {
4474 
4475                         /*
4476                          * If we have reached the end of frame
4477                          * and we have more SGE's to fill in
4478                          * we have to fill the final entry
4479                          * with a chain element and then
4480                          * continue to the next frame
4481                          */
4482                         if ((l == (sgemax + 1)) && (k != frames)) {
4483                                 sgechain = (pMpi2SGEChain64_t)sge;
4484                                 j--;
4485                                 chainflags = (
4486                                     MPI2_SGE_FLAGS_CHAIN_ELEMENT |
4487                                     MPI2_SGE_FLAGS_SYSTEM_ADDRESS |
4488                                     MPI2_SGE_FLAGS_64_BIT_ADDRESSING);
4489                                 ddi_put8(p->m_acc_hdl,
4490                                     &sgechain->Flags, chainflags);
4491                                 /*
4492                                  * k is the frame counter and (k + 1)
4493                                  * is the number of the next frame.
4494                                  * Note that frames are in contiguous
4495                                  * memory space.
4496                                  */
4497                                 nframe_phys_addr = p->m_phys_addr +
4498                                     (mpt->m_req_frame_size * k);
4499                                 ddi_put32(p->m_acc_hdl,
4500                                     &sgechain->Address.Low,
4501                                     nframe_phys_addr);
4502                                 ddi_put32(p->m_acc_hdl,
4503                                     &sgechain->Address.High,
4504                                     nframe_phys_addr >> 32);
4505 
4506                                 /*
4507                                  * If there are more than 2 frames left
4508                                  * we have to next chain offset to
4509                                  * the location of the chain element
4510                                  * in the next frame and fill in the
4511                                  * length of the next chain
4512                                  */
4513                                 if ((frames - k) >= 2) {
4514                                         ddi_put8(p->m_acc_hdl,
4515                                             &sgechain->NextChainOffset,
4516                                             (sgemax *
4517                                             sizeof (MPI2_SGE_SIMPLE64))
4518                                             >> 2);
4519                                         ddi_put16(p->m_acc_hdl,
4520                                             &sgechain->Length,
4521                                             mpt->m_req_frame_size /
4522                                             sizeof (MPI2_SGE_SIMPLE64) *
4523                                             sizeof (MPI2_SGE_SIMPLE64));
4524                                 } else {
4525                                         /*
4526                                          * This is the last frame. Set
4527                                          * the NextChainOffset to 0 and
4528                                          * Length is the total size of
4529                                          * all remaining simple elements
4530                                          */
4531                                         ddi_put8(p->m_acc_hdl,
4532                                             &sgechain->NextChainOffset,
4533                                             0);
4534                                         ddi_put16(p->m_acc_hdl,
4535                                             &sgechain->Length,
4536                                             (cookiec - j) *
4537                                             sizeof (MPI2_SGE_SIMPLE64));
4538                                 }
4539 
4540                                 /* Jump to the next frame */
4541                                 sge = (pMpi2SGESimple64_t)
4542                                     ((char *)p->m_frames_addr +
4543                                     (int)mpt->m_req_frame_size * k);
4544 
4545                                 continue;
4546                         }
4547 
4548                         ddi_put32(p->m_acc_hdl,
4549                             &sge->Address.Low,
4550                             dmap->addr.address64.Low);
4551                         ddi_put32(p->m_acc_hdl,
4552                             &sge->Address.High,
4553                             dmap->addr.address64.High);
4554                         ddi_put32(p->m_acc_hdl,
4555                             &sge->FlagsLength, dmap->count);
4556                         flags = ddi_get32(p->m_acc_hdl,
4557                             &sge->FlagsLength);
4558                         flags |= ((uint32_t)(
4559                             MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
4560                             MPI2_SGE_FLAGS_SYSTEM_ADDRESS |
4561                             MPI2_SGE_FLAGS_64_BIT_ADDRESSING) <<
4562                             MPI2_SGE_FLAGS_SHIFT);
4563 
4564                         /*
4565                          * If we are at the end of the frame and
4566                          * there is another frame to fill in
4567                          * we set the last simple element as last
4568                          * element
4569                          */
4570                         if ((l == sgemax) && (k != frames)) {
4571                                 flags |= ((uint32_t)
4572                                     (MPI2_SGE_FLAGS_LAST_ELEMENT) <<
4573                                     MPI2_SGE_FLAGS_SHIFT);
4574                         }
4575 
4576                         /*
4577                          * If this is the final cookie we
4578                          * indicate it by setting the flags
4579                          */
4580                         if (j == i) {
4581                                 flags |= ((uint32_t)
4582                                     (MPI2_SGE_FLAGS_LAST_ELEMENT |
4583                                     MPI2_SGE_FLAGS_END_OF_BUFFER |
4584                                     MPI2_SGE_FLAGS_END_OF_LIST) <<
4585                                     MPI2_SGE_FLAGS_SHIFT);
4586                         }
4587                         if (cmd->cmd_flags & CFLAG_DMASEND) {
4588                                 flags |=
4589                                     (MPI2_SGE_FLAGS_HOST_TO_IOC <<
4590                                     MPI2_SGE_FLAGS_SHIFT);
4591                         } else {
4592                                 flags |=
4593                                     (MPI2_SGE_FLAGS_IOC_TO_HOST <<
4594                                     MPI2_SGE_FLAGS_SHIFT);
4595                         }
4596                         ddi_put32(p->m_acc_hdl,
4597                             &sge->FlagsLength, flags);
4598                         dmap++;
4599                         sge++;
4600                 }
4601         }
4602 
4603         /*
4604          * Sync DMA with the chain buffers that were just created
4605          */
4606         (void) ddi_dma_sync(p->m_dma_hdl, 0, 0, DDI_DMA_SYNC_FORDEV);
4607 }
4608 
4609 static void
4610 mptsas_ieee_sge_mainframe(mptsas_cmd_t *cmd, pMpi2SCSIIORequest_t frame,
4611     ddi_acc_handle_t acc_hdl, uint_t cookiec, uint8_t end_flag)
4612 {
4613         pMpi2IeeeSgeSimple64_t  ieeesge;
4614         mptti_t                 *dmap;
4615         uint8_t                 flags;
4616 
4617         dmap = cmd->cmd_sg;
4618 
4619         NDBG1(("mptsas_ieee_sge_mainframe: cookiec=%d, %s", cookiec,
4620             cmd->cmd_flags & CFLAG_DMASEND?"Out":"In"));
4621 
4622         ieeesge = (pMpi2IeeeSgeSimple64_t)(&frame->SGL);
4623         while (cookiec--) {
4624                 ddi_put32(acc_hdl,
4625                     &ieeesge->Address.Low, dmap->addr.address64.Low);
4626                 ddi_put32(acc_hdl,
4627                     &ieeesge->Address.High, dmap->addr.address64.High);
4628                 ddi_put32(acc_hdl, &ieeesge->Length,
4629                     dmap->count);
4630                 NDBG1(("mptsas_ieee_sge_mainframe: len=%d", dmap->count));
4631                 flags = (MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
4632                     MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR);
4633 
4634                 /*
4635                  * If this is the last cookie, we set the flags
4636                  * to indicate so
4637                  */
4638                 if (cookiec == 0) {
4639                         flags |= end_flag;
4640                 }
4641 
4642                 ddi_put8(acc_hdl, &ieeesge->Flags, flags);
4643                 dmap++;
4644                 ieeesge++;
4645         }
4646 }
4647 
4648 static void
4649 mptsas_ieee_sge_chain(mptsas_t *mpt, mptsas_cmd_t *cmd,
4650     pMpi2SCSIIORequest_t frame, ddi_acc_handle_t acc_hdl)
4651 {
4652         pMpi2IeeeSgeSimple64_t  ieeesge;
4653         pMpi25IeeeSgeChain64_t  ieeesgechain;
4654         uint64_t                nframe_phys_addr;
4655         uint_t                  cookiec;
4656         mptti_t                 *dmap;
4657         uint8_t                 flags;
4658 
4659         /*
4660          * Save the number of entries in the DMA
4661          * Scatter/Gather list
4662          */
4663         cookiec = cmd->cmd_cookiec;
4664 
4665         NDBG1(("mptsas_ieee_sge_chain: cookiec=%d", cookiec));
4666 
4667         /*
4668          * Hereby we start to deal with multiple frames.
4669          * The process is as follows:
4670          * 1. Determine how many frames are needed for SGL element
4671          *    storage; Note that all frames are stored in contiguous
4672          *    memory space and in 64-bit DMA mode each element is
4673          *    4 double-words (16 bytes) long.
4674          * 2. Fill up the main frame. We need to do this separately
4675          *    since it contains the SCSI IO request header and needs
4676          *    dedicated processing. Note that the last 4 double-words
4677          *    of the SCSI IO header is for SGL element storage
4678          *    (MPI2_SGE_IO_UNION).
4679          * 3. Fill the chain element in the main frame, so the DMA
4680          *    engine can use the following frames.
4681          * 4. Enter a loop to fill the remaining frames. Note that the
4682          *    last frame contains no chain element.  The remaining
4683          *    frames go into the mpt SGL buffer allocated on the fly,
4684          *    not immediately following the main message frame, as in
4685          *    Gen1.
4686          * Restrictions:
4687          *    For 64-bit DMA, the simple element and chain element
4688          *    are both of 4 double-words (16 bytes) in size, even
4689          *    though all frames are stored in the first 4G of mem
4690          *    range and the higher 32-bits of the address are always 0.
4691          */
4692         int                     i, j, k, l, frames, sgemax;
4693         int                     temp;
4694         uint8_t                 chainflags;
4695         uint32_t                chainlength;
4696         mptsas_cache_frames_t   *p;
4697 
4698         /*
4699          * Sgemax is the number of SGE's that will fit
4700          * each extra frame and frames is total
4701          * number of frames we'll need.  1 sge entry per
4702          * frame is reseverd for the chain element thus the -1 below.
4703          */
4704         sgemax = ((mpt->m_req_frame_size / sizeof (MPI2_IEEE_SGE_SIMPLE64))
4705             - 1);
4706         temp = (cookiec - (MPTSAS_MAX_FRAME_SGES64(mpt) - 1)) / sgemax;
4707 
4708         /*
4709          * A little check to see if we need to round up the number
4710          * of frames we need
4711          */
4712         if ((cookiec - (MPTSAS_MAX_FRAME_SGES64(mpt) - 1)) - (temp *
4713             sgemax) > 1) {
4714                 frames = (temp + 1);
4715         } else {
4716                 frames = temp;
4717         }
4718         NDBG1(("mptsas_ieee_sge_chain: temp=%d, frames=%d", temp, frames));
4719         dmap = cmd->cmd_sg;
4720         ieeesge = (pMpi2IeeeSgeSimple64_t)(&frame->SGL);
4721 
4722         /*
4723          * First fill in the main frame
4724          */
4725         j = MPTSAS_MAX_FRAME_SGES64(mpt) - 1;
4726         mptsas_ieee_sge_mainframe(cmd, frame, acc_hdl, j, 0);
4727         dmap += j;
4728         ieeesge += j;
4729         j++;
4730 
4731         /*
4732          * Fill in the chain element in the main frame.
4733          * About calculation on ChainOffset:
4734          * 1. Struct msg_scsi_io_request has 4 double-words (16 bytes)
4735          *    in the end reserved for SGL element storage
4736          *    (MPI2_SGE_IO_UNION); we should count it in our
4737          *    calculation.  See its definition in the header file.
4738          * 2. Constant j is the counter of the current SGL element
4739          *    that will be processed, and (j - 1) is the number of
4740          *    SGL elements that have been processed (stored in the
4741          *    main frame).
4742          * 3. ChainOffset value should be in units of quad-words (16
4743          *    bytes) so the last value should be divided by 16.
4744          */
4745         ddi_put8(acc_hdl, &frame->ChainOffset,
4746             (sizeof (MPI2_SCSI_IO_REQUEST) -
4747             sizeof (MPI2_SGE_IO_UNION) +
4748             (j - 1) * sizeof (MPI2_IEEE_SGE_SIMPLE64)) >> 4);
4749         ieeesgechain = (pMpi25IeeeSgeChain64_t)ieeesge;
4750         chainflags = (MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
4751             MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR);
4752         ddi_put8(acc_hdl, &ieeesgechain->Flags, chainflags);
4753 
4754         /*
4755          * The size of the next frame is the accurate size of space
4756          * (in bytes) used to store the SGL elements. j is the counter
4757          * of SGL elements. (j - 1) is the number of SGL elements that
4758          * have been processed (stored in frames).
4759          */
4760         if (frames >= 2) {
4761                 ASSERT(mpt->m_req_frame_size >=
4762                     sizeof (MPI2_IEEE_SGE_SIMPLE64));
4763                 chainlength = mpt->m_req_frame_size /
4764                     sizeof (MPI2_IEEE_SGE_SIMPLE64) *
4765                     sizeof (MPI2_IEEE_SGE_SIMPLE64);
4766         } else {
4767                 chainlength = ((cookiec - (j - 1)) *
4768                     sizeof (MPI2_IEEE_SGE_SIMPLE64));
4769         }
4770 
4771         p = cmd->cmd_extra_frames;
4772 
4773         ddi_put32(acc_hdl, &ieeesgechain->Length, chainlength);
4774         ddi_put32(acc_hdl, &ieeesgechain->Address.Low, p->m_phys_addr);
4775         ddi_put32(acc_hdl, &ieeesgechain->Address.High, p->m_phys_addr >> 32);
4776 
4777         /*
4778          * If there are more than 2 frames left we have to
4779          * fill in the next chain offset to the location of
4780          * the chain element in the next frame.
4781          * sgemax is the number of simple elements in an extra
4782          * frame. Note that the value NextChainOffset should be
4783          * in double-words (4 bytes).
4784          */
4785         if (frames >= 2) {
4786                 ddi_put8(acc_hdl, &ieeesgechain->NextChainOffset,
4787                     (sgemax * sizeof (MPI2_IEEE_SGE_SIMPLE64)) >> 4);
4788         } else {
4789                 ddi_put8(acc_hdl, &ieeesgechain->NextChainOffset, 0);
4790         }
4791 
4792         /*
4793          * Jump to next frame;
4794          * Starting here, chain buffers go into the per command SGL.
4795          * This buffer is allocated when chain buffers are needed.
4796          */
4797         ieeesge = (pMpi2IeeeSgeSimple64_t)p->m_frames_addr;
4798         i = cookiec;
4799 
4800         /*
4801          * Start filling in frames with SGE's.  If we
4802          * reach the end of frame and still have SGE's
4803          * to fill we need to add a chain element and
4804          * use another frame.  j will be our counter
4805          * for what cookie we are at and i will be
4806          * the total cookiec. k is the current frame
4807          */
4808         for (k = 1; k <= frames; k++) {
4809                 for (l = 1; (l <= (sgemax + 1)) && (j <= i); j++, l++) {
4810 
4811                         /*
4812                          * If we have reached the end of frame
4813                          * and we have more SGE's to fill in
4814                          * we have to fill the final entry
4815                          * with a chain element and then
4816                          * continue to the next frame
4817                          */
4818                         if ((l == (sgemax + 1)) && (k != frames)) {
4819                                 ieeesgechain = (pMpi25IeeeSgeChain64_t)ieeesge;
4820                                 j--;
4821                                 chainflags =
4822                                     MPI2_IEEE_SGE_FLAGS_CHAIN_ELEMENT |
4823                                     MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR;
4824                                 ddi_put8(p->m_acc_hdl,
4825                                     &ieeesgechain->Flags, chainflags);
4826                                 /*
4827                                  * k is the frame counter and (k + 1)
4828                                  * is the number of the next frame.
4829                                  * Note that frames are in contiguous
4830                                  * memory space.
4831                                  */
4832                                 nframe_phys_addr = p->m_phys_addr +
4833                                     (mpt->m_req_frame_size * k);
4834                                 ddi_put32(p->m_acc_hdl,
4835                                     &ieeesgechain->Address.Low,
4836                                     nframe_phys_addr);
4837                                 ddi_put32(p->m_acc_hdl,
4838                                     &ieeesgechain->Address.High,
4839                                     nframe_phys_addr >> 32);
4840 
4841                                 /*
4842                                  * If there are more than 2 frames left
4843                                  * we have to next chain offset to
4844                                  * the location of the chain element
4845                                  * in the next frame and fill in the
4846                                  * length of the next chain
4847                                  */
4848                                 if ((frames - k) >= 2) {
4849                                         ddi_put8(p->m_acc_hdl,
4850                                             &ieeesgechain->NextChainOffset,
4851                                             (sgemax *
4852                                             sizeof (MPI2_IEEE_SGE_SIMPLE64))
4853                                             >> 4);
4854                                         ASSERT(mpt->m_req_frame_size >=
4855                                             sizeof (MPI2_IEEE_SGE_SIMPLE64));
4856                                         ddi_put32(p->m_acc_hdl,
4857                                             &ieeesgechain->Length,
4858                                             mpt->m_req_frame_size /
4859                                             sizeof (MPI2_IEEE_SGE_SIMPLE64) *
4860                                             sizeof (MPI2_IEEE_SGE_SIMPLE64));
4861                                 } else {
4862                                         /*
4863                                          * This is the last frame. Set
4864                                          * the NextChainOffset to 0 and
4865                                          * Length is the total size of
4866                                          * all remaining simple elements
4867                                          */
4868                                         ddi_put8(p->m_acc_hdl,
4869                                             &ieeesgechain->NextChainOffset,
4870                                             0);
4871                                         ddi_put32(p->m_acc_hdl,
4872                                             &ieeesgechain->Length,
4873                                             (cookiec - j) *
4874                                             sizeof (MPI2_IEEE_SGE_SIMPLE64));
4875                                 }
4876 
4877                                 /* Jump to the next frame */
4878                                 ieeesge = (pMpi2IeeeSgeSimple64_t)
4879                                     ((char *)p->m_frames_addr +
4880                                     (int)mpt->m_req_frame_size * k);
4881 
4882                                 continue;
4883                         }
4884 
4885                         ddi_put32(p->m_acc_hdl,
4886                             &ieeesge->Address.Low,
4887                             dmap->addr.address64.Low);
4888                         ddi_put32(p->m_acc_hdl,
4889                             &ieeesge->Address.High,
4890                             dmap->addr.address64.High);
4891                         ddi_put32(p->m_acc_hdl,
4892                             &ieeesge->Length, dmap->count);
4893                         flags = (MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
4894                             MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR);
4895 
4896                         /*
4897                          * If we are at the end of the frame and
4898                          * there is another frame to fill in
4899                          * do we need to do anything?
4900                          * if ((l == sgemax) && (k != frames)) {
4901                          * }
4902                          */
4903 
4904                         /*
4905                          * If this is the final cookie set end of list.
4906                          */
4907                         if (j == i) {
4908                                 flags |= MPI25_IEEE_SGE_FLAGS_END_OF_LIST;
4909                         }
4910 
4911                         ddi_put8(p->m_acc_hdl, &ieeesge->Flags, flags);
4912                         dmap++;
4913                         ieeesge++;
4914                 }
4915         }
4916 
4917         /*
4918          * Sync DMA with the chain buffers that were just created
4919          */
4920         (void) ddi_dma_sync(p->m_dma_hdl, 0, 0, DDI_DMA_SYNC_FORDEV);
4921 }
4922 
4923 static void
4924 mptsas_sge_setup(mptsas_t *mpt, mptsas_cmd_t *cmd, uint32_t *control,
4925     pMpi2SCSIIORequest_t frame, ddi_acc_handle_t acc_hdl)
4926 {
4927         ASSERT(cmd->cmd_flags & CFLAG_DMAVALID);
4928 
4929         NDBG1(("mptsas_sge_setup: cookiec=%d", cmd->cmd_cookiec));
4930 
4931         /*
4932          * Set read/write bit in control.
4933          */
4934         if (cmd->cmd_flags & CFLAG_DMASEND) {
4935                 *control |= MPI2_SCSIIO_CONTROL_WRITE;
4936         } else {
4937                 *control |= MPI2_SCSIIO_CONTROL_READ;
4938         }
4939 
4940         ddi_put32(acc_hdl, &frame->DataLength, cmd->cmd_dmacount);
4941 
4942         /*
4943          * We have 4 cases here.  First where we can fit all the
4944          * SG elements into the main frame, and the case
4945          * where we can't. The SG element is also different when using
4946          * MPI2.5 interface.
4947          * If we have more cookies than we can attach to a frame
4948          * we will need to use a chain element to point
4949          * a location of memory where the rest of the S/G
4950          * elements reside.
4951          */
4952         if (cmd->cmd_cookiec <= MPTSAS_MAX_FRAME_SGES64(mpt)) {
4953                 if (mpt->m_MPI25) {
4954                         mptsas_ieee_sge_mainframe(cmd, frame, acc_hdl,
4955                             cmd->cmd_cookiec,
4956                             MPI25_IEEE_SGE_FLAGS_END_OF_LIST);
4957                 } else {
4958                         mptsas_sge_mainframe(cmd, frame, acc_hdl,
4959                             cmd->cmd_cookiec,
4960                             ((uint32_t)(MPI2_SGE_FLAGS_LAST_ELEMENT
4961                             | MPI2_SGE_FLAGS_END_OF_BUFFER
4962                             | MPI2_SGE_FLAGS_END_OF_LIST) <<
4963                             MPI2_SGE_FLAGS_SHIFT));
4964                 }
4965         } else {
4966                 if (mpt->m_MPI25) {
4967                         mptsas_ieee_sge_chain(mpt, cmd, frame, acc_hdl);
4968                 } else {
4969                         mptsas_sge_chain(mpt, cmd, frame, acc_hdl);
4970                 }
4971         }
4972 }
4973 
4974 /*
4975  * Interrupt handling
4976  * Utility routine.  Poll for status of a command sent to HBA
4977  * without interrupts (a FLAG_NOINTR command).
4978  */
4979 int
4980 mptsas_poll(mptsas_t *mpt, mptsas_cmd_t *poll_cmd, int polltime)
4981 {
4982         int     rval = TRUE;
4983 
4984         NDBG5(("mptsas_poll: cmd=0x%p", (void *)poll_cmd));
4985 
4986         if ((poll_cmd->cmd_flags & CFLAG_TM_CMD) == 0) {
4987                 mptsas_restart_hba(mpt);
4988         }
4989 
4990         /*
4991          * Wait, using drv_usecwait(), long enough for the command to
4992          * reasonably return from the target if the target isn't
4993          * "dead".  A polled command may well be sent from scsi_poll, and
4994          * there are retries built in to scsi_poll if the transport
4995          * accepted the packet (TRAN_ACCEPT).  scsi_poll waits 1 second
4996          * and retries the transport up to scsi_poll_busycnt times
4997          * (currently 60) if
4998          * 1. pkt_reason is CMD_INCOMPLETE and pkt_state is 0, or
4999          * 2. pkt_reason is CMD_CMPLT and *pkt_scbp has STATUS_BUSY
5000          *
5001          * limit the waiting to avoid a hang in the event that the
5002          * cmd never gets started but we are still receiving interrupts
5003          */
5004         while (!(poll_cmd->cmd_flags & CFLAG_FINISHED)) {
5005                 if (mptsas_wait_intr(mpt, polltime) == FALSE) {
5006                         NDBG5(("mptsas_poll: command incomplete"));
5007                         rval = FALSE;
5008                         break;
5009                 }
5010         }
5011 
5012         if (rval == FALSE) {
5013 
5014                 /*
5015                  * this isn't supposed to happen, the hba must be wedged
5016                  * Mark this cmd as a timeout.
5017                  */
5018                 mptsas_set_pkt_reason(mpt, poll_cmd, CMD_TIMEOUT,
5019                     (STAT_TIMEOUT|STAT_ABORTED));
5020 
5021                 if (poll_cmd->cmd_queued == FALSE) {
5022 
5023                         NDBG5(("mptsas_poll: not on waitq"));
5024 
5025                         poll_cmd->cmd_pkt->pkt_state |=
5026                             (STATE_GOT_BUS|STATE_GOT_TARGET|STATE_SENT_CMD);
5027                 } else {
5028 
5029                         /* find and remove it from the waitq */
5030                         NDBG5(("mptsas_poll: delete from waitq"));
5031                         mptsas_waitq_delete(mpt, poll_cmd);
5032                 }
5033 
5034         }
5035         mptsas_fma_check(mpt, poll_cmd);
5036         NDBG5(("mptsas_poll: done"));
5037         return (rval);
5038 }
5039 
5040 /*
5041  * Used for polling cmds and TM function
5042  */
5043 static int
5044 mptsas_wait_intr(mptsas_t *mpt, int polltime)
5045 {
5046         int                             cnt;
5047         pMpi2ReplyDescriptorsUnion_t    reply_desc_union;
5048         uint32_t                        int_mask;
5049 
5050         NDBG5(("mptsas_wait_intr"));
5051 
5052         mpt->m_polled_intr = 1;
5053 
5054         /*
5055          * Get the current interrupt mask and disable interrupts.  When
5056          * re-enabling ints, set mask to saved value.
5057          */
5058         int_mask = ddi_get32(mpt->m_datap, &mpt->m_reg->HostInterruptMask);
5059         MPTSAS_DISABLE_INTR(mpt);
5060 
5061         /*
5062          * Keep polling for at least (polltime * 1000) seconds
5063          */
5064         for (cnt = 0; cnt < polltime; cnt++) {
5065                 (void) ddi_dma_sync(mpt->m_dma_post_queue_hdl, 0, 0,
5066                     DDI_DMA_SYNC_FORCPU);
5067 
5068                 reply_desc_union = (pMpi2ReplyDescriptorsUnion_t)
5069                     MPTSAS_GET_NEXT_REPLY(mpt, mpt->m_post_index);
5070 
5071                 if (ddi_get32(mpt->m_acc_post_queue_hdl,
5072                     &reply_desc_union->Words.Low) == 0xFFFFFFFF ||
5073                     ddi_get32(mpt->m_acc_post_queue_hdl,
5074                     &reply_desc_union->Words.High) == 0xFFFFFFFF) {
5075                         drv_usecwait(1000);
5076                         continue;
5077                 }
5078 
5079                 /*
5080                  * The reply is valid, process it according to its
5081                  * type.
5082                  */
5083                 mptsas_process_intr(mpt, reply_desc_union);
5084 
5085                 if (++mpt->m_post_index == mpt->m_post_queue_depth) {
5086                         mpt->m_post_index = 0;
5087                 }
5088 
5089                 /*
5090                  * Update the global reply index
5091                  */
5092                 ddi_put32(mpt->m_datap,
5093                     &mpt->m_reg->ReplyPostHostIndex, mpt->m_post_index);
5094                 mpt->m_polled_intr = 0;
5095 
5096                 /*
5097                  * Re-enable interrupts and quit.
5098                  */
5099                 ddi_put32(mpt->m_datap, &mpt->m_reg->HostInterruptMask,
5100                     int_mask);
5101                 return (TRUE);
5102 
5103         }
5104 
5105         /*
5106          * Clear polling flag, re-enable interrupts and quit.
5107          */
5108         mpt->m_polled_intr = 0;
5109         ddi_put32(mpt->m_datap, &mpt->m_reg->HostInterruptMask, int_mask);
5110         return (FALSE);
5111 }
5112 
5113 static void
5114 mptsas_handle_scsi_io_success(mptsas_t *mpt,
5115     pMpi2ReplyDescriptorsUnion_t reply_desc)
5116 {
5117         pMpi2SCSIIOSuccessReplyDescriptor_t     scsi_io_success;
5118         uint16_t                                SMID;
5119         mptsas_slots_t                          *slots = mpt->m_active;
5120         mptsas_cmd_t                            *cmd = NULL;
5121         struct scsi_pkt                         *pkt;
5122 
5123         ASSERT(mutex_owned(&mpt->m_mutex));
5124 
5125         scsi_io_success = (pMpi2SCSIIOSuccessReplyDescriptor_t)reply_desc;
5126         SMID = ddi_get16(mpt->m_acc_post_queue_hdl, &scsi_io_success->SMID);
5127 
5128         /*
5129          * This is a success reply so just complete the IO.  First, do a sanity
5130          * check on the SMID.  The final slot is used for TM requests, which
5131          * would not come into this reply handler.
5132          */
5133         if ((SMID == 0) || (SMID > slots->m_n_normal)) {
5134                 mptsas_log(mpt, CE_WARN, "?Received invalid SMID of %d\n",
5135                     SMID);
5136                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
5137                 return;
5138         }
5139 
5140         cmd = slots->m_slot[SMID];
5141 
5142         /*
5143          * print warning and return if the slot is empty
5144          */
5145         if (cmd == NULL) {
5146                 mptsas_log(mpt, CE_WARN, "?NULL command for successful SCSI IO "
5147                     "in slot %d", SMID);
5148                 return;
5149         }
5150 
5151         pkt = CMD2PKT(cmd);
5152         pkt->pkt_state |= (STATE_GOT_BUS | STATE_GOT_TARGET | STATE_SENT_CMD |
5153             STATE_GOT_STATUS);
5154         if (cmd->cmd_flags & CFLAG_DMAVALID) {
5155                 pkt->pkt_state |= STATE_XFERRED_DATA;
5156         }
5157         pkt->pkt_resid = 0;
5158 
5159         if (cmd->cmd_flags & CFLAG_PASSTHRU) {
5160                 cmd->cmd_flags |= CFLAG_FINISHED;
5161                 cv_broadcast(&mpt->m_passthru_cv);
5162                 return;
5163         } else {
5164                 mptsas_remove_cmd(mpt, cmd);
5165         }
5166 
5167         if (cmd->cmd_flags & CFLAG_RETRY) {
5168                 /*
5169                  * The target returned QFULL or busy, do not add tihs
5170                  * pkt to the doneq since the hba will retry
5171                  * this cmd.
5172                  *
5173                  * The pkt has already been resubmitted in
5174                  * mptsas_handle_qfull() or in mptsas_check_scsi_io_error().
5175                  * Remove this cmd_flag here.
5176                  */
5177                 cmd->cmd_flags &= ~CFLAG_RETRY;
5178         } else {
5179                 mptsas_doneq_add(mpt, cmd);
5180         }
5181 }
5182 
5183 static void
5184 mptsas_handle_address_reply(mptsas_t *mpt,
5185     pMpi2ReplyDescriptorsUnion_t reply_desc)
5186 {
5187         pMpi2AddressReplyDescriptor_t   address_reply;
5188         pMPI2DefaultReply_t             reply;
5189         mptsas_fw_diagnostic_buffer_t   *pBuffer;
5190         uint32_t                        reply_addr, reply_frame_dma_baseaddr;
5191         uint16_t                        SMID, iocstatus;
5192         mptsas_slots_t                  *slots = mpt->m_active;
5193         mptsas_cmd_t                    *cmd = NULL;
5194         uint8_t                         function, buffer_type;
5195         m_replyh_arg_t                  *args;
5196         int                             reply_frame_no;
5197 
5198         ASSERT(mutex_owned(&mpt->m_mutex));
5199 
5200         address_reply = (pMpi2AddressReplyDescriptor_t)reply_desc;
5201         reply_addr = ddi_get32(mpt->m_acc_post_queue_hdl,
5202             &address_reply->ReplyFrameAddress);
5203         SMID = ddi_get16(mpt->m_acc_post_queue_hdl, &address_reply->SMID);
5204 
5205         /*
5206          * If reply frame is not in the proper range we should ignore this
5207          * message and exit the interrupt handler.
5208          */
5209         reply_frame_dma_baseaddr = mpt->m_reply_frame_dma_addr & 0xffffffffu;
5210         if ((reply_addr < reply_frame_dma_baseaddr) ||
5211             (reply_addr >= (reply_frame_dma_baseaddr +
5212             (mpt->m_reply_frame_size * mpt->m_max_replies))) ||
5213             ((reply_addr - reply_frame_dma_baseaddr) %
5214             mpt->m_reply_frame_size != 0)) {
5215                 mptsas_log(mpt, CE_WARN, "?Received invalid reply frame "
5216                     "address 0x%x\n", reply_addr);
5217                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
5218                 return;
5219         }
5220 
5221         (void) ddi_dma_sync(mpt->m_dma_reply_frame_hdl, 0, 0,
5222             DDI_DMA_SYNC_FORCPU);
5223         reply = (pMPI2DefaultReply_t)(mpt->m_reply_frame + (reply_addr -
5224             reply_frame_dma_baseaddr));
5225         function = ddi_get8(mpt->m_acc_reply_frame_hdl, &reply->Function);
5226 
5227         NDBG31(("mptsas_handle_address_reply: function 0x%x, reply_addr=0x%x",
5228             function, reply_addr));
5229 
5230         /*
5231          * don't get slot information and command for events since these values
5232          * don't exist
5233          */
5234         if ((function != MPI2_FUNCTION_EVENT_NOTIFICATION) &&
5235             (function != MPI2_FUNCTION_DIAG_BUFFER_POST)) {
5236                 /*
5237                  * This could be a TM reply, which use the last allocated SMID,
5238                  * so allow for that.
5239                  */
5240                 if ((SMID == 0) || (SMID > (slots->m_n_normal + 1))) {
5241                         mptsas_log(mpt, CE_WARN, "?Received invalid SMID of "
5242                             "%d\n", SMID);
5243                         ddi_fm_service_impact(mpt->m_dip,
5244                             DDI_SERVICE_UNAFFECTED);
5245                         return;
5246                 }
5247 
5248                 cmd = slots->m_slot[SMID];
5249 
5250                 /*
5251                  * print warning and return if the slot is empty
5252                  */
5253                 if (cmd == NULL) {
5254                         mptsas_log(mpt, CE_WARN, "?NULL command for address "
5255                             "reply in slot %d", SMID);
5256                         return;
5257                 }
5258                 if ((cmd->cmd_flags &
5259                     (CFLAG_PASSTHRU | CFLAG_CONFIG | CFLAG_FW_DIAG))) {
5260                         cmd->cmd_rfm = reply_addr;
5261                         cmd->cmd_flags |= CFLAG_FINISHED;
5262                         cv_broadcast(&mpt->m_passthru_cv);
5263                         cv_broadcast(&mpt->m_config_cv);
5264                         cv_broadcast(&mpt->m_fw_diag_cv);
5265                         return;
5266                 } else if (!(cmd->cmd_flags & CFLAG_FW_CMD)) {
5267                         mptsas_remove_cmd(mpt, cmd);
5268                 }
5269                 NDBG31(("\t\tmptsas_process_intr: slot=%d", SMID));
5270         }
5271         /*
5272          * Depending on the function, we need to handle
5273          * the reply frame (and cmd) differently.
5274          */
5275         switch (function) {
5276         case MPI2_FUNCTION_SCSI_IO_REQUEST:
5277                 mptsas_check_scsi_io_error(mpt, (pMpi2SCSIIOReply_t)reply, cmd);
5278                 break;
5279         case MPI2_FUNCTION_SCSI_TASK_MGMT:
5280                 cmd->cmd_rfm = reply_addr;
5281                 mptsas_check_task_mgt(mpt, (pMpi2SCSIManagementReply_t)reply,
5282                     cmd);
5283                 break;
5284         case MPI2_FUNCTION_FW_DOWNLOAD:
5285                 cmd->cmd_flags |= CFLAG_FINISHED;
5286                 cv_signal(&mpt->m_fw_cv);
5287                 break;
5288         case MPI2_FUNCTION_EVENT_NOTIFICATION:
5289                 reply_frame_no = (reply_addr - reply_frame_dma_baseaddr) /
5290                     mpt->m_reply_frame_size;
5291                 args = &mpt->m_replyh_args[reply_frame_no];
5292                 args->mpt = (void *)mpt;
5293                 args->rfm = reply_addr;
5294 
5295                 /*
5296                  * Record the event if its type is enabled in
5297                  * this mpt instance by ioctl.
5298                  */
5299                 mptsas_record_event(args);
5300 
5301                 /*
5302                  * Handle time critical events
5303                  * NOT_RESPONDING/ADDED only now
5304                  */
5305                 if (mptsas_handle_event_sync(args) == DDI_SUCCESS) {
5306                         /*
5307                          * Would not return main process,
5308                          * just let taskq resolve ack action
5309                          * and ack would be sent in taskq thread
5310                          */
5311                         NDBG20(("send mptsas_handle_event_sync success"));
5312                 }
5313 
5314                 if (mpt->m_in_reset) {
5315                         NDBG20(("dropping event received during reset"));
5316                         return;
5317                 }
5318 
5319                 if ((ddi_taskq_dispatch(mpt->m_event_taskq, mptsas_handle_event,
5320                     (void *)args, DDI_NOSLEEP)) != DDI_SUCCESS) {
5321                         mptsas_log(mpt, CE_WARN, "No memory available"
5322                         "for dispatch taskq");
5323                         /*
5324                          * Return the reply frame to the free queue.
5325                          */
5326                         ddi_put32(mpt->m_acc_free_queue_hdl,
5327                             &((uint32_t *)(void *)
5328                             mpt->m_free_queue)[mpt->m_free_index], reply_addr);
5329                         (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
5330                             DDI_DMA_SYNC_FORDEV);
5331                         if (++mpt->m_free_index == mpt->m_free_queue_depth) {
5332                                 mpt->m_free_index = 0;
5333                         }
5334 
5335                         ddi_put32(mpt->m_datap,
5336                             &mpt->m_reg->ReplyFreeHostIndex, mpt->m_free_index);
5337                 }
5338                 return;
5339         case MPI2_FUNCTION_DIAG_BUFFER_POST:
5340                 /*
5341                  * If SMID is 0, this implies that the reply is due to a
5342                  * release function with a status that the buffer has been
5343                  * released.  Set the buffer flags accordingly.
5344                  */
5345                 if (SMID == 0) {
5346                         iocstatus = ddi_get16(mpt->m_acc_reply_frame_hdl,
5347                             &reply->IOCStatus);
5348                         buffer_type = ddi_get8(mpt->m_acc_reply_frame_hdl,
5349                             &(((pMpi2DiagBufferPostReply_t)reply)->BufferType));
5350                         if (iocstatus == MPI2_IOCSTATUS_DIAGNOSTIC_RELEASED) {
5351                                 pBuffer =
5352                                     &mpt->m_fw_diag_buffer_list[buffer_type];
5353                                 pBuffer->valid_data = TRUE;
5354                                 pBuffer->owned_by_firmware = FALSE;
5355                                 pBuffer->immediate = FALSE;
5356                         }
5357                 } else {
5358                         /*
5359                          * Normal handling of diag post reply with SMID.
5360                          */
5361                         cmd = slots->m_slot[SMID];
5362 
5363                         /*
5364                          * print warning and return if the slot is empty
5365                          */
5366                         if (cmd == NULL) {
5367                                 mptsas_log(mpt, CE_WARN, "?NULL command for "
5368                                     "address reply in slot %d", SMID);
5369                                 return;
5370                         }
5371                         cmd->cmd_rfm = reply_addr;
5372                         cmd->cmd_flags |= CFLAG_FINISHED;
5373                         cv_broadcast(&mpt->m_fw_diag_cv);
5374                 }
5375                 return;
5376         default:
5377                 mptsas_log(mpt, CE_WARN, "Unknown function 0x%x ", function);
5378                 break;
5379         }
5380 
5381         /*
5382          * Return the reply frame to the free queue.
5383          */
5384         ddi_put32(mpt->m_acc_free_queue_hdl,
5385             &((uint32_t *)(void *)mpt->m_free_queue)[mpt->m_free_index],
5386             reply_addr);
5387         (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
5388             DDI_DMA_SYNC_FORDEV);
5389         if (++mpt->m_free_index == mpt->m_free_queue_depth) {
5390                 mpt->m_free_index = 0;
5391         }
5392         ddi_put32(mpt->m_datap, &mpt->m_reg->ReplyFreeHostIndex,
5393             mpt->m_free_index);
5394 
5395         if (cmd->cmd_flags & CFLAG_FW_CMD)
5396                 return;
5397 
5398         if (cmd->cmd_flags & CFLAG_RETRY) {
5399                 /*
5400                  * The target returned QFULL or busy, do not add this
5401                  * pkt to the doneq since the hba will retry
5402                  * this cmd.
5403                  *
5404                  * The pkt has already been resubmitted in
5405                  * mptsas_handle_qfull() or in mptsas_check_scsi_io_error().
5406                  * Remove this cmd_flag here.
5407                  */
5408                 cmd->cmd_flags &= ~CFLAG_RETRY;
5409         } else {
5410                 mptsas_doneq_add(mpt, cmd);
5411         }
5412 }
5413 
5414 #ifdef MPTSAS_DEBUG
5415 static uint8_t mptsas_last_sense[256];
5416 #endif
5417 
5418 static void
5419 mptsas_check_scsi_io_error(mptsas_t *mpt, pMpi2SCSIIOReply_t reply,
5420     mptsas_cmd_t *cmd)
5421 {
5422         uint8_t                 scsi_status, scsi_state;
5423         uint16_t                ioc_status, cmd_rqs_len;
5424         uint32_t                xferred, sensecount, responsedata, loginfo = 0;
5425         struct scsi_pkt         *pkt;
5426         struct scsi_arq_status  *arqstat;
5427         mptsas_target_t         *ptgt = cmd->cmd_tgt_addr;
5428         uint8_t                 *sensedata = NULL;
5429         uint64_t                sas_wwn;
5430         uint8_t                 phy;
5431         char                    wwn_str[MPTSAS_WWN_STRLEN];
5432 
5433         scsi_status = ddi_get8(mpt->m_acc_reply_frame_hdl, &reply->SCSIStatus);
5434         ioc_status = ddi_get16(mpt->m_acc_reply_frame_hdl, &reply->IOCStatus);
5435         scsi_state = ddi_get8(mpt->m_acc_reply_frame_hdl, &reply->SCSIState);
5436         xferred = ddi_get32(mpt->m_acc_reply_frame_hdl, &reply->TransferCount);
5437         sensecount = ddi_get32(mpt->m_acc_reply_frame_hdl, &reply->SenseCount);
5438         responsedata = ddi_get32(mpt->m_acc_reply_frame_hdl,
5439             &reply->ResponseInfo);
5440 
5441         if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
5442                 sas_wwn = ptgt->m_addr.mta_wwn;
5443                 phy = ptgt->m_phynum;
5444                 if (sas_wwn == 0) {
5445                         (void) sprintf(wwn_str, "p%x", phy);
5446                 } else {
5447                         (void) sprintf(wwn_str, "w%016"PRIx64, sas_wwn);
5448                 }
5449                 loginfo = ddi_get32(mpt->m_acc_reply_frame_hdl,
5450                     &reply->IOCLogInfo);
5451                 mptsas_log(mpt, CE_NOTE,
5452                     "?Log info 0x%x received for target %d %s.\n"
5453                     "\tscsi_status=0x%x, ioc_status=0x%x, scsi_state=0x%x",
5454                     loginfo, Tgt(cmd), wwn_str, scsi_status, ioc_status,
5455                     scsi_state);
5456         }
5457 
5458         NDBG31(("\t\tscsi_status=0x%x, ioc_status=0x%x, scsi_state=0x%x",
5459             scsi_status, ioc_status, scsi_state));
5460 
5461         pkt = CMD2PKT(cmd);
5462         *(pkt->pkt_scbp) = scsi_status;
5463 
5464         if (loginfo == 0x31170000) {
5465                 /*
5466                  * if loginfo PL_LOGINFO_CODE_IO_DEVICE_MISSING_DELAY_RETRY
5467                  * 0x31170000 comes, that means the device missing delay
5468                  * is in progressing, the command need retry later.
5469                  */
5470                 *(pkt->pkt_scbp) = STATUS_BUSY;
5471                 return;
5472         }
5473 
5474         if ((scsi_state & MPI2_SCSI_STATE_NO_SCSI_STATUS) &&
5475             ((ioc_status & MPI2_IOCSTATUS_MASK) ==
5476             MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE)) {
5477                 pkt->pkt_reason = CMD_INCOMPLETE;
5478                 pkt->pkt_state |= STATE_GOT_BUS;
5479                 if (ptgt->m_reset_delay == 0) {
5480                         mptsas_set_throttle(mpt, ptgt,
5481                             DRAIN_THROTTLE);
5482                 }
5483                 return;
5484         }
5485 
5486         if (scsi_state & MPI2_SCSI_STATE_RESPONSE_INFO_VALID) {
5487                 responsedata &= 0x000000FF;
5488                 if (responsedata & MPTSAS_SCSI_RESPONSE_CODE_TLR_OFF) {
5489                         mptsas_log(mpt, CE_NOTE, "Do not support the TLR\n");
5490                         pkt->pkt_reason = CMD_TLR_OFF;
5491                         return;
5492                 }
5493         }
5494 
5495 
5496         switch (scsi_status) {
5497         case MPI2_SCSI_STATUS_CHECK_CONDITION:
5498                 pkt->pkt_resid = (cmd->cmd_dmacount - xferred);
5499                 arqstat = (void*)(pkt->pkt_scbp);
5500                 arqstat->sts_rqpkt_status = *((struct scsi_status *)
5501                     (pkt->pkt_scbp));
5502                 pkt->pkt_state |= (STATE_GOT_BUS | STATE_GOT_TARGET |
5503                     STATE_SENT_CMD | STATE_GOT_STATUS | STATE_ARQ_DONE);
5504                 if (cmd->cmd_flags & CFLAG_XARQ) {
5505                         pkt->pkt_state |= STATE_XARQ_DONE;
5506                 }
5507                 if (pkt->pkt_resid != cmd->cmd_dmacount) {
5508                         pkt->pkt_state |= STATE_XFERRED_DATA;
5509                 }
5510                 arqstat->sts_rqpkt_reason = pkt->pkt_reason;
5511                 arqstat->sts_rqpkt_state  = pkt->pkt_state;
5512                 arqstat->sts_rqpkt_state |= STATE_XFERRED_DATA;
5513                 arqstat->sts_rqpkt_statistics = pkt->pkt_statistics;
5514                 sensedata = (uint8_t *)&arqstat->sts_sensedata;
5515                 cmd_rqs_len = cmd->cmd_extrqslen ?
5516                     cmd->cmd_extrqslen : cmd->cmd_rqslen;
5517                 (void) ddi_dma_sync(mpt->m_dma_req_sense_hdl, 0, 0,
5518                     DDI_DMA_SYNC_FORKERNEL);
5519 #ifdef MPTSAS_DEBUG
5520                 bcopy(cmd->cmd_arq_buf, mptsas_last_sense,
5521                     ((cmd_rqs_len >= sizeof (mptsas_last_sense)) ?
5522                     sizeof (mptsas_last_sense):cmd_rqs_len));
5523 #endif
5524                 bcopy((uchar_t *)cmd->cmd_arq_buf, sensedata,
5525                     ((cmd_rqs_len >= sensecount) ? sensecount :
5526                     cmd_rqs_len));
5527                 arqstat->sts_rqpkt_resid = (cmd_rqs_len - sensecount);
5528                 cmd->cmd_flags |= CFLAG_CMDARQ;
5529                 /*
5530                  * Set proper status for pkt if autosense was valid
5531                  */
5532                 if (scsi_state & MPI2_SCSI_STATE_AUTOSENSE_VALID) {
5533                         struct scsi_status zero_status = { 0 };
5534                         arqstat->sts_rqpkt_status = zero_status;
5535                 }
5536 
5537                 /*
5538                  * ASC=0x47 is parity error
5539                  * ASC=0x48 is initiator detected error received
5540                  */
5541                 if ((scsi_sense_key(sensedata) == KEY_ABORTED_COMMAND) &&
5542                     ((scsi_sense_asc(sensedata) == 0x47) ||
5543                     (scsi_sense_asc(sensedata) == 0x48))) {
5544                         mptsas_log(mpt, CE_NOTE, "Aborted_command!");
5545                 }
5546 
5547                 /*
5548                  * ASC/ASCQ=0x3F/0x0E means report_luns data changed
5549                  * ASC/ASCQ=0x25/0x00 means invalid lun
5550                  */
5551                 if (((scsi_sense_key(sensedata) == KEY_UNIT_ATTENTION) &&
5552                     (scsi_sense_asc(sensedata) == 0x3F) &&
5553                     (scsi_sense_ascq(sensedata) == 0x0E)) ||
5554                     ((scsi_sense_key(sensedata) == KEY_ILLEGAL_REQUEST) &&
5555                     (scsi_sense_asc(sensedata) == 0x25) &&
5556                     (scsi_sense_ascq(sensedata) == 0x00))) {
5557                         mptsas_topo_change_list_t *topo_node = NULL;
5558 
5559                         topo_node = kmem_zalloc(
5560                             sizeof (mptsas_topo_change_list_t),
5561                             KM_NOSLEEP);
5562                         if (topo_node == NULL) {
5563                                 mptsas_log(mpt, CE_NOTE, "No memory"
5564                                     "resource for handle SAS dynamic"
5565                                     "reconfigure.\n");
5566                                 break;
5567                         }
5568                         topo_node->mpt = mpt;
5569                         topo_node->event = MPTSAS_DR_EVENT_RECONFIG_TARGET;
5570                         topo_node->un.phymask = ptgt->m_addr.mta_phymask;
5571                         topo_node->devhdl = ptgt->m_devhdl;
5572                         topo_node->object = (void *)ptgt;
5573                         topo_node->flags = MPTSAS_TOPO_FLAG_LUN_ASSOCIATED;
5574 
5575                         if ((ddi_taskq_dispatch(mpt->m_dr_taskq,
5576                             mptsas_handle_dr,
5577                             (void *)topo_node,
5578                             DDI_NOSLEEP)) != DDI_SUCCESS) {
5579                                 kmem_free(topo_node,
5580                                     sizeof (mptsas_topo_change_list_t));
5581                                 mptsas_log(mpt, CE_NOTE, "mptsas start taskq"
5582                                     "for handle SAS dynamic reconfigure"
5583                                     "failed. \n");
5584                         }
5585                 }
5586                 break;
5587         case MPI2_SCSI_STATUS_GOOD:
5588                 switch (ioc_status & MPI2_IOCSTATUS_MASK) {
5589                 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
5590                         pkt->pkt_reason = CMD_DEV_GONE;
5591                         pkt->pkt_state |= STATE_GOT_BUS;
5592                         if (ptgt->m_reset_delay == 0) {
5593                                 mptsas_set_throttle(mpt, ptgt, DRAIN_THROTTLE);
5594                         }
5595                         NDBG31(("lost disk for target%d, command:%x",
5596                             Tgt(cmd), pkt->pkt_cdbp[0]));
5597                         break;
5598                 case MPI2_IOCSTATUS_SCSI_DATA_OVERRUN:
5599                         NDBG31(("data overrun: xferred=%d", xferred));
5600                         NDBG31(("dmacount=%d", cmd->cmd_dmacount));
5601                         pkt->pkt_reason = CMD_DATA_OVR;
5602                         pkt->pkt_state |= (STATE_GOT_BUS | STATE_GOT_TARGET
5603                             | STATE_SENT_CMD | STATE_GOT_STATUS
5604                             | STATE_XFERRED_DATA);
5605                         pkt->pkt_resid = 0;
5606                         break;
5607                 case MPI2_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
5608                 case MPI2_IOCSTATUS_SCSI_DATA_UNDERRUN:
5609                         NDBG31(("data underrun: xferred=%d", xferred));
5610                         NDBG31(("dmacount=%d", cmd->cmd_dmacount));
5611                         pkt->pkt_state |= (STATE_GOT_BUS | STATE_GOT_TARGET
5612                             | STATE_SENT_CMD | STATE_GOT_STATUS);
5613                         pkt->pkt_resid = (cmd->cmd_dmacount - xferred);
5614                         if (pkt->pkt_resid != cmd->cmd_dmacount) {
5615                                 pkt->pkt_state |= STATE_XFERRED_DATA;
5616                         }
5617                         break;
5618                 case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
5619                         if (cmd->cmd_active_expiration <= gethrtime()) {
5620                                 /*
5621                                  * When timeout requested, propagate
5622                                  * proper reason and statistics to
5623                                  * target drivers.
5624                                  */
5625                                 mptsas_set_pkt_reason(mpt, cmd, CMD_TIMEOUT,
5626                                     STAT_BUS_RESET | STAT_TIMEOUT);
5627                         } else {
5628                                 mptsas_set_pkt_reason(mpt, cmd, CMD_RESET,
5629                                     STAT_BUS_RESET);
5630                         }
5631                         break;
5632                 case MPI2_IOCSTATUS_SCSI_IOC_TERMINATED:
5633                 case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
5634                         mptsas_set_pkt_reason(mpt,
5635                             cmd, CMD_RESET, STAT_DEV_RESET);
5636                         break;
5637                 case MPI2_IOCSTATUS_SCSI_IO_DATA_ERROR:
5638                 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
5639                         pkt->pkt_state |= (STATE_GOT_BUS | STATE_GOT_TARGET);
5640                         mptsas_set_pkt_reason(mpt,
5641                             cmd, CMD_TERMINATED, STAT_TERMINATED);
5642                         break;
5643                 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
5644                 case MPI2_IOCSTATUS_BUSY:
5645                         /*
5646                          * set throttles to drain
5647                          */
5648                         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
5649                             ptgt = refhash_next(mpt->m_targets, ptgt)) {
5650                                 mptsas_set_throttle(mpt, ptgt, DRAIN_THROTTLE);
5651                         }
5652 
5653                         /*
5654                          * retry command
5655                          */
5656                         cmd->cmd_flags |= CFLAG_RETRY;
5657                         cmd->cmd_pkt_flags |= FLAG_HEAD;
5658 
5659                         (void) mptsas_accept_pkt(mpt, cmd);
5660                         break;
5661                 default:
5662                         mptsas_log(mpt, CE_WARN,
5663                             "unknown ioc_status = %x\n", ioc_status);
5664                         mptsas_log(mpt, CE_CONT, "scsi_state = %x, transfer "
5665                             "count = %x, scsi_status = %x", scsi_state,
5666                             xferred, scsi_status);
5667                         break;
5668                 }
5669                 break;
5670         case MPI2_SCSI_STATUS_TASK_SET_FULL:
5671                 mptsas_handle_qfull(mpt, cmd);
5672                 break;
5673         case MPI2_SCSI_STATUS_BUSY:
5674                 NDBG31(("scsi_status busy received"));
5675                 break;
5676         case MPI2_SCSI_STATUS_RESERVATION_CONFLICT:
5677                 NDBG31(("scsi_status reservation conflict received"));
5678                 break;
5679         default:
5680                 mptsas_log(mpt, CE_WARN, "scsi_status=%x, ioc_status=%x\n",
5681                     scsi_status, ioc_status);
5682                 mptsas_log(mpt, CE_WARN,
5683                     "mptsas_process_intr: invalid scsi status\n");
5684                 break;
5685         }
5686 }
5687 
5688 static void
5689 mptsas_check_task_mgt(mptsas_t *mpt, pMpi2SCSIManagementReply_t reply,
5690         mptsas_cmd_t *cmd)
5691 {
5692         uint8_t         task_type;
5693         uint16_t        ioc_status;
5694         uint32_t        log_info;
5695         uint16_t        dev_handle;
5696         struct scsi_pkt *pkt = CMD2PKT(cmd);
5697 
5698         task_type = ddi_get8(mpt->m_acc_reply_frame_hdl, &reply->TaskType);
5699         ioc_status = ddi_get16(mpt->m_acc_reply_frame_hdl, &reply->IOCStatus);
5700         log_info = ddi_get32(mpt->m_acc_reply_frame_hdl, &reply->IOCLogInfo);
5701         dev_handle = ddi_get16(mpt->m_acc_reply_frame_hdl, &reply->DevHandle);
5702 
5703         if (ioc_status != MPI2_IOCSTATUS_SUCCESS) {
5704                 mptsas_log(mpt, CE_WARN, "mptsas_check_task_mgt: Task 0x%x "
5705                     "failed. IOCStatus=0x%x IOCLogInfo=0x%x target=%d\n",
5706                     task_type, ioc_status, log_info, dev_handle);
5707                 pkt->pkt_reason = CMD_INCOMPLETE;
5708                 return;
5709         }
5710 
5711         switch (task_type) {
5712         case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK:
5713         case MPI2_SCSITASKMGMT_TASKTYPE_CLEAR_TASK_SET:
5714         case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK:
5715         case MPI2_SCSITASKMGMT_TASKTYPE_CLR_ACA:
5716         case MPI2_SCSITASKMGMT_TASKTYPE_QRY_TASK_SET:
5717         case MPI2_SCSITASKMGMT_TASKTYPE_QRY_UNIT_ATTENTION:
5718                 break;
5719         case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
5720         case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
5721         case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
5722                 /*
5723                  * Check for invalid DevHandle of 0 in case application
5724                  * sends bad command.  DevHandle of 0 could cause problems.
5725                  */
5726                 if (dev_handle == 0) {
5727                         mptsas_log(mpt, CE_WARN, "!Can't flush target with"
5728                             " DevHandle of 0.");
5729                 } else {
5730                         mptsas_flush_target(mpt, dev_handle, Lun(cmd),
5731                             task_type);
5732                 }
5733                 break;
5734         default:
5735                 mptsas_log(mpt, CE_WARN, "Unknown task management type %d.",
5736                     task_type);
5737                 mptsas_log(mpt, CE_WARN, "ioc status = %x", ioc_status);
5738                 break;
5739         }
5740 }
5741 
5742 static void
5743 mptsas_doneq_thread(mptsas_doneq_thread_arg_t *arg)
5744 {
5745         mptsas_t                        *mpt = arg->mpt;
5746         uint64_t                        t = arg->t;
5747         mptsas_cmd_t                    *cmd;
5748         struct scsi_pkt                 *pkt;
5749         mptsas_doneq_thread_list_t      *item = &mpt->m_doneq_thread_id[t];
5750 
5751         mutex_enter(&item->mutex);
5752         while (item->flag & MPTSAS_DONEQ_THREAD_ACTIVE) {
5753                 if (!item->doneq) {
5754                         cv_wait(&item->cv, &item->mutex);
5755                 }
5756                 pkt = NULL;
5757                 if ((cmd = mptsas_doneq_thread_rm(mpt, t)) != NULL) {
5758                         cmd->cmd_flags |= CFLAG_COMPLETED;
5759                         pkt = CMD2PKT(cmd);
5760                 }
5761                 mutex_exit(&item->mutex);
5762                 if (pkt) {
5763                         mptsas_pkt_comp(pkt, cmd);
5764                 }
5765                 mutex_enter(&item->mutex);
5766         }
5767         mutex_exit(&item->mutex);
5768         mutex_enter(&mpt->m_doneq_mutex);
5769         mpt->m_doneq_thread_n--;
5770         cv_broadcast(&mpt->m_doneq_thread_cv);
5771         mutex_exit(&mpt->m_doneq_mutex);
5772 }
5773 
5774 
5775 /*
5776  * mpt interrupt handler.
5777  */
5778 static uint_t
5779 mptsas_intr(caddr_t arg1, caddr_t arg2)
5780 {
5781         mptsas_t                        *mpt = (void *)arg1;
5782         pMpi2ReplyDescriptorsUnion_t    reply_desc_union;
5783         uchar_t                         did_reply = FALSE;
5784 
5785         NDBG1(("mptsas_intr: arg1 0x%p arg2 0x%p", (void *)arg1, (void *)arg2));
5786 
5787         mutex_enter(&mpt->m_mutex);
5788 
5789         /*
5790          * If interrupts are shared by two channels then check whether this
5791          * interrupt is genuinely for this channel by making sure first the
5792          * chip is in high power state.
5793          */
5794         if ((mpt->m_options & MPTSAS_OPT_PM) &&
5795             (mpt->m_power_level != PM_LEVEL_D0)) {
5796                 mutex_exit(&mpt->m_mutex);
5797                 return (DDI_INTR_UNCLAIMED);
5798         }
5799 
5800         /*
5801          * If polling, interrupt was triggered by some shared interrupt because
5802          * IOC interrupts are disabled during polling, so polling routine will
5803          * handle any replies.  Considering this, if polling is happening,
5804          * return with interrupt unclaimed.
5805          */
5806         if (mpt->m_polled_intr) {
5807                 mutex_exit(&mpt->m_mutex);
5808                 mptsas_log(mpt, CE_WARN, "mpt_sas: Unclaimed interrupt");
5809                 return (DDI_INTR_UNCLAIMED);
5810         }
5811 
5812         /*
5813          * Read the istat register.
5814          */
5815         if ((INTPENDING(mpt)) != 0) {
5816                 /*
5817                  * read fifo until empty.
5818                  */
5819 #ifndef __lock_lint
5820                 _NOTE(CONSTCOND)
5821 #endif
5822                 while (TRUE) {
5823                         (void) ddi_dma_sync(mpt->m_dma_post_queue_hdl, 0, 0,
5824                             DDI_DMA_SYNC_FORCPU);
5825                         reply_desc_union = (pMpi2ReplyDescriptorsUnion_t)
5826                             MPTSAS_GET_NEXT_REPLY(mpt, mpt->m_post_index);
5827 
5828                         if (ddi_get32(mpt->m_acc_post_queue_hdl,
5829                             &reply_desc_union->Words.Low) == 0xFFFFFFFF ||
5830                             ddi_get32(mpt->m_acc_post_queue_hdl,
5831                             &reply_desc_union->Words.High) == 0xFFFFFFFF) {
5832                                 break;
5833                         }
5834 
5835                         /*
5836                          * The reply is valid, process it according to its
5837                          * type.  Also, set a flag for updating the reply index
5838                          * after they've all been processed.
5839                          */
5840                         did_reply = TRUE;
5841 
5842                         mptsas_process_intr(mpt, reply_desc_union);
5843 
5844                         /*
5845                          * Increment post index and roll over if needed.
5846                          */
5847                         if (++mpt->m_post_index == mpt->m_post_queue_depth) {
5848                                 mpt->m_post_index = 0;
5849                         }
5850                 }
5851 
5852                 /*
5853                  * Update the global reply index if at least one reply was
5854                  * processed.
5855                  */
5856                 if (did_reply) {
5857                         ddi_put32(mpt->m_datap,
5858                             &mpt->m_reg->ReplyPostHostIndex, mpt->m_post_index);
5859                 }
5860         } else {
5861                 mutex_exit(&mpt->m_mutex);
5862                 return (DDI_INTR_UNCLAIMED);
5863         }
5864         NDBG1(("mptsas_intr complete"));
5865 
5866         /*
5867          * If no helper threads are created, process the doneq in ISR. If
5868          * helpers are created, use the doneq length as a metric to measure the
5869          * load on the interrupt CPU. If it is long enough, which indicates the
5870          * load is heavy, then we deliver the IO completions to the helpers.
5871          * This measurement has some limitations, although it is simple and
5872          * straightforward and works well for most of the cases at present.
5873          */
5874         if (!mpt->m_doneq_thread_n ||
5875             (mpt->m_doneq_len <= mpt->m_doneq_length_threshold)) {
5876                 mptsas_doneq_empty(mpt);
5877         } else {
5878                 mptsas_deliver_doneq_thread(mpt);
5879         }
5880 
5881         /*
5882          * If there are queued cmd, start them now.
5883          */
5884         if (mpt->m_waitq != NULL) {
5885                 mptsas_restart_waitq(mpt);
5886         }
5887 
5888         mutex_exit(&mpt->m_mutex);
5889         return (DDI_INTR_CLAIMED);
5890 }
5891 
5892 static void
5893 mptsas_process_intr(mptsas_t *mpt,
5894     pMpi2ReplyDescriptorsUnion_t reply_desc_union)
5895 {
5896         uint8_t reply_type;
5897 
5898         ASSERT(mutex_owned(&mpt->m_mutex));
5899 
5900         /*
5901          * The reply is valid, process it according to its
5902          * type.  Also, set a flag for updated the reply index
5903          * after they've all been processed.
5904          */
5905         reply_type = ddi_get8(mpt->m_acc_post_queue_hdl,
5906             &reply_desc_union->Default.ReplyFlags);
5907         reply_type &= MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK;
5908         if (reply_type == MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS ||
5909             reply_type == MPI25_RPY_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO_SUCCESS) {
5910                 mptsas_handle_scsi_io_success(mpt, reply_desc_union);
5911         } else if (reply_type == MPI2_RPY_DESCRIPT_FLAGS_ADDRESS_REPLY) {
5912                 mptsas_handle_address_reply(mpt, reply_desc_union);
5913         } else {
5914                 mptsas_log(mpt, CE_WARN, "?Bad reply type %x", reply_type);
5915                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
5916         }
5917 
5918         /*
5919          * Clear the reply descriptor for re-use and increment
5920          * index.
5921          */
5922         ddi_put64(mpt->m_acc_post_queue_hdl,
5923             &((uint64_t *)(void *)mpt->m_post_queue)[mpt->m_post_index],
5924             0xFFFFFFFFFFFFFFFF);
5925         (void) ddi_dma_sync(mpt->m_dma_post_queue_hdl, 0, 0,
5926             DDI_DMA_SYNC_FORDEV);
5927 }
5928 
5929 /*
5930  * handle qfull condition
5931  */
5932 static void
5933 mptsas_handle_qfull(mptsas_t *mpt, mptsas_cmd_t *cmd)
5934 {
5935         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
5936 
5937         if ((++cmd->cmd_qfull_retries > ptgt->m_qfull_retries) ||
5938             (ptgt->m_qfull_retries == 0)) {
5939                 /*
5940                  * We have exhausted the retries on QFULL, or,
5941                  * the target driver has indicated that it
5942                  * wants to handle QFULL itself by setting
5943                  * qfull-retries capability to 0. In either case
5944                  * we want the target driver's QFULL handling
5945                  * to kick in. We do this by having pkt_reason
5946                  * as CMD_CMPLT and pkt_scbp as STATUS_QFULL.
5947                  */
5948                 mptsas_set_throttle(mpt, ptgt, DRAIN_THROTTLE);
5949         } else {
5950                 if (ptgt->m_reset_delay == 0) {
5951                         ptgt->m_t_throttle =
5952                             max((ptgt->m_t_ncmds - 2), 0);
5953                 }
5954 
5955                 cmd->cmd_pkt_flags |= FLAG_HEAD;
5956                 cmd->cmd_flags &= ~(CFLAG_TRANFLAG);
5957                 cmd->cmd_flags |= CFLAG_RETRY;
5958 
5959                 (void) mptsas_accept_pkt(mpt, cmd);
5960 
5961                 /*
5962                  * when target gives queue full status with no commands
5963                  * outstanding (m_t_ncmds == 0), throttle is set to 0
5964                  * (HOLD_THROTTLE), and the queue full handling start
5965                  * (see psarc/1994/313); if there are commands outstanding,
5966                  * throttle is set to (m_t_ncmds - 2)
5967                  */
5968                 if (ptgt->m_t_throttle == HOLD_THROTTLE) {
5969                         /*
5970                          * By setting throttle to QFULL_THROTTLE, we
5971                          * avoid submitting new commands and in
5972                          * mptsas_restart_cmd find out slots which need
5973                          * their throttles to be cleared.
5974                          */
5975                         mptsas_set_throttle(mpt, ptgt, QFULL_THROTTLE);
5976                         if (mpt->m_restart_cmd_timeid == 0) {
5977                                 mpt->m_restart_cmd_timeid =
5978                                     timeout(mptsas_restart_cmd, mpt,
5979                                     ptgt->m_qfull_retry_interval);
5980                         }
5981                 }
5982         }
5983 }
5984 
5985 mptsas_phymask_t
5986 mptsas_physport_to_phymask(mptsas_t *mpt, uint8_t physport)
5987 {
5988         mptsas_phymask_t        phy_mask = 0;
5989         uint8_t                 i = 0;
5990 
5991         NDBG20(("mptsas%d physport_to_phymask enter", mpt->m_instance));
5992 
5993         ASSERT(mutex_owned(&mpt->m_mutex));
5994 
5995         /*
5996          * If physport is 0xFF, this is a RAID volume.  Use phymask of 0.
5997          */
5998         if (physport == 0xFF) {
5999                 return (0);
6000         }
6001 
6002         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
6003                 if (mpt->m_phy_info[i].attached_devhdl &&
6004                     (mpt->m_phy_info[i].phy_mask != 0) &&
6005                     (mpt->m_phy_info[i].port_num == physport)) {
6006                         phy_mask = mpt->m_phy_info[i].phy_mask;
6007                         break;
6008                 }
6009         }
6010         NDBG20(("mptsas%d physport_to_phymask:physport :%x phymask :%x, ",
6011             mpt->m_instance, physport, phy_mask));
6012         return (phy_mask);
6013 }
6014 
6015 /*
6016  * mpt free device handle after device gone, by use of passthrough
6017  */
6018 static int
6019 mptsas_free_devhdl(mptsas_t *mpt, uint16_t devhdl)
6020 {
6021         Mpi2SasIoUnitControlRequest_t   req;
6022         Mpi2SasIoUnitControlReply_t     rep;
6023         int                             ret;
6024 
6025         ASSERT(mutex_owned(&mpt->m_mutex));
6026 
6027         /*
6028          * Need to compose a SAS IO Unit Control request message
6029          * and call mptsas_do_passthru() function
6030          */
6031         bzero(&req, sizeof (req));
6032         bzero(&rep, sizeof (rep));
6033 
6034         req.Function = MPI2_FUNCTION_SAS_IO_UNIT_CONTROL;
6035         req.Operation = MPI2_SAS_OP_REMOVE_DEVICE;
6036         req.DevHandle = LE_16(devhdl);
6037 
6038         ret = mptsas_do_passthru(mpt, (uint8_t *)&req, (uint8_t *)&rep, NULL,
6039             sizeof (req), sizeof (rep), NULL, 0, NULL, 0, 60, FKIOCTL);
6040         if (ret != 0) {
6041                 cmn_err(CE_WARN, "mptsas_free_devhdl: passthru SAS IO Unit "
6042                     "Control error %d", ret);
6043                 return (DDI_FAILURE);
6044         }
6045 
6046         /* do passthrough success, check the ioc status */
6047         if (LE_16(rep.IOCStatus) != MPI2_IOCSTATUS_SUCCESS) {
6048                 cmn_err(CE_WARN, "mptsas_free_devhdl: passthru SAS IO Unit "
6049                     "Control IOCStatus %d", LE_16(rep.IOCStatus));
6050                 return (DDI_FAILURE);
6051         }
6052 
6053         return (DDI_SUCCESS);
6054 }
6055 
6056 static void
6057 mptsas_update_phymask(mptsas_t *mpt)
6058 {
6059         mptsas_phymask_t mask = 0, phy_mask;
6060         char            *phy_mask_name;
6061         uint8_t         current_port;
6062         int             i, j;
6063 
6064         NDBG20(("mptsas%d update phymask ", mpt->m_instance));
6065 
6066         ASSERT(mutex_owned(&mpt->m_mutex));
6067 
6068         (void) mptsas_get_sas_io_unit_page(mpt);
6069 
6070         phy_mask_name = kmem_zalloc(MPTSAS_MAX_PHYS, KM_SLEEP);
6071 
6072         for (i = 0; i < mpt->m_num_phys; i++) {
6073                 phy_mask = 0x00;
6074 
6075                 if (mpt->m_phy_info[i].attached_devhdl == 0)
6076                         continue;
6077 
6078                 bzero(phy_mask_name, sizeof (phy_mask_name));
6079 
6080                 current_port = mpt->m_phy_info[i].port_num;
6081 
6082                 if ((mask & (1 << i)) != 0)
6083                         continue;
6084 
6085                 for (j = 0; j < mpt->m_num_phys; j++) {
6086                         if (mpt->m_phy_info[j].attached_devhdl &&
6087                             (mpt->m_phy_info[j].port_num == current_port)) {
6088                                 phy_mask |= (1 << j);
6089                         }
6090                 }
6091                 mask = mask | phy_mask;
6092 
6093                 for (j = 0; j < mpt->m_num_phys; j++) {
6094                         if ((phy_mask >> j) & 0x01) {
6095                                 mpt->m_phy_info[j].phy_mask = phy_mask;
6096                         }
6097                 }
6098 
6099                 (void) sprintf(phy_mask_name, "%x", phy_mask);
6100 
6101                 mutex_exit(&mpt->m_mutex);
6102                 /*
6103                  * register a iport, if the port has already been existed
6104                  * SCSA will do nothing and just return.
6105                  */
6106                 (void) scsi_hba_iport_register(mpt->m_dip, phy_mask_name);
6107                 mutex_enter(&mpt->m_mutex);
6108         }
6109         kmem_free(phy_mask_name, MPTSAS_MAX_PHYS);
6110         NDBG20(("mptsas%d update phymask return", mpt->m_instance));
6111 }
6112 
6113 /*
6114  * mptsas_handle_dr is a task handler for DR, the DR action includes:
6115  * 1. Directly attched Device Added/Removed.
6116  * 2. Expander Device Added/Removed.
6117  * 3. Indirectly Attached Device Added/Expander.
6118  * 4. LUNs of a existing device status change.
6119  * 5. RAID volume created/deleted.
6120  * 6. Member of RAID volume is released because of RAID deletion.
6121  * 7. Physical disks are removed because of RAID creation.
6122  */
6123 static void
6124 mptsas_handle_dr(void *args) {
6125         mptsas_topo_change_list_t       *topo_node = NULL;
6126         mptsas_topo_change_list_t       *save_node = NULL;
6127         mptsas_t                        *mpt;
6128         dev_info_t                      *parent = NULL;
6129         mptsas_phymask_t                phymask = 0;
6130         char                            *phy_mask_name;
6131         uint8_t                         flags = 0, physport = 0xff;
6132         uint8_t                         port_update = 0;
6133         uint_t                          event;
6134 
6135         topo_node = (mptsas_topo_change_list_t *)args;
6136 
6137         mpt = topo_node->mpt;
6138         event = topo_node->event;
6139         flags = topo_node->flags;
6140 
6141         phy_mask_name = kmem_zalloc(MPTSAS_MAX_PHYS, KM_SLEEP);
6142 
6143         NDBG20(("mptsas%d handle_dr enter", mpt->m_instance));
6144 
6145         switch (event) {
6146         case MPTSAS_DR_EVENT_RECONFIG_TARGET:
6147                 if ((flags == MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE) ||
6148                     (flags == MPTSAS_TOPO_FLAG_EXPANDER_ATTACHED_DEVICE) ||
6149                     (flags == MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED)) {
6150                         /*
6151                          * Direct attached or expander attached device added
6152                          * into system or a Phys Disk that is being unhidden.
6153                          */
6154                         port_update = 1;
6155                 }
6156                 break;
6157         case MPTSAS_DR_EVENT_RECONFIG_SMP:
6158                 /*
6159                  * New expander added into system, it must be the head
6160                  * of topo_change_list_t
6161                  */
6162                 port_update = 1;
6163                 break;
6164         default:
6165                 port_update = 0;
6166                 break;
6167         }
6168         /*
6169          * All cases port_update == 1 may cause initiator port form change
6170          */
6171         mutex_enter(&mpt->m_mutex);
6172         if (mpt->m_port_chng && port_update) {
6173                 /*
6174                  * mpt->m_port_chng flag indicates some PHYs of initiator
6175                  * port have changed to online. So when expander added or
6176                  * directly attached device online event come, we force to
6177                  * update port information by issueing SAS IO Unit Page and
6178                  * update PHYMASKs.
6179                  */
6180                 (void) mptsas_update_phymask(mpt);
6181                 mpt->m_port_chng = 0;
6182 
6183         }
6184         mutex_exit(&mpt->m_mutex);
6185         while (topo_node) {
6186                 phymask = 0;
6187                 if (parent == NULL) {
6188                         physport = topo_node->un.physport;
6189                         event = topo_node->event;
6190                         flags = topo_node->flags;
6191                         if (event & (MPTSAS_DR_EVENT_OFFLINE_TARGET |
6192                             MPTSAS_DR_EVENT_OFFLINE_SMP)) {
6193                                 /*
6194                                  * For all offline events, phymask is known
6195                                  */
6196                                 phymask = topo_node->un.phymask;
6197                                 goto find_parent;
6198                         }
6199                         if (event & MPTSAS_TOPO_FLAG_REMOVE_HANDLE) {
6200                                 goto handle_topo_change;
6201                         }
6202                         if (flags & MPTSAS_TOPO_FLAG_LUN_ASSOCIATED) {
6203                                 phymask = topo_node->un.phymask;
6204                                 goto find_parent;
6205                         }
6206 
6207                         if ((flags ==
6208                             MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED) &&
6209                             (event == MPTSAS_DR_EVENT_RECONFIG_TARGET)) {
6210                                 /*
6211                                  * There is no any field in IR_CONFIG_CHANGE
6212                                  * event indicate physport/phynum, let's get
6213                                  * parent after SAS Device Page0 request.
6214                                  */
6215                                 goto handle_topo_change;
6216                         }
6217 
6218                         mutex_enter(&mpt->m_mutex);
6219                         if (flags == MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE) {
6220                                 /*
6221                                  * If the direct attached device added or a
6222                                  * phys disk is being unhidden, argument
6223                                  * physport actually is PHY#, so we have to get
6224                                  * phymask according PHY#.
6225                                  */
6226                                 physport = mpt->m_phy_info[physport].port_num;
6227                         }
6228 
6229                         /*
6230                          * Translate physport to phymask so that we can search
6231                          * parent dip.
6232                          */
6233                         phymask = mptsas_physport_to_phymask(mpt,
6234                             physport);
6235                         mutex_exit(&mpt->m_mutex);
6236 
6237 find_parent:
6238                         bzero(phy_mask_name, MPTSAS_MAX_PHYS);
6239                         /*
6240                          * For RAID topology change node, write the iport name
6241                          * as v0.
6242                          */
6243                         if (flags & MPTSAS_TOPO_FLAG_RAID_ASSOCIATED) {
6244                                 (void) sprintf(phy_mask_name, "v0");
6245                         } else {
6246                                 /*
6247                                  * phymask can bo 0 if the drive has been
6248                                  * pulled by the time an add event is
6249                                  * processed.  If phymask is 0, just skip this
6250                                  * event and continue.
6251                                  */
6252                                 if (phymask == 0) {
6253                                         mutex_enter(&mpt->m_mutex);
6254                                         save_node = topo_node;
6255                                         topo_node = topo_node->next;
6256                                         ASSERT(save_node);
6257                                         kmem_free(save_node,
6258                                             sizeof (mptsas_topo_change_list_t));
6259                                         mutex_exit(&mpt->m_mutex);
6260 
6261                                         parent = NULL;
6262                                         continue;
6263                                 }
6264                                 (void) sprintf(phy_mask_name, "%x", phymask);
6265                         }
6266                         parent = scsi_hba_iport_find(mpt->m_dip,
6267                             phy_mask_name);
6268                         if (parent == NULL) {
6269                                 mptsas_log(mpt, CE_WARN, "Failed to find an "
6270                                     "iport, should not happen!");
6271                                 goto out;
6272                         }
6273 
6274                 }
6275                 ASSERT(parent);
6276 handle_topo_change:
6277 
6278                 mutex_enter(&mpt->m_mutex);
6279                 /*
6280                  * If HBA is being reset, don't perform operations depending
6281                  * on the IOC. We must free the topo list, however.
6282                  */
6283                 if (!mpt->m_in_reset)
6284                         mptsas_handle_topo_change(topo_node, parent);
6285                 else
6286                         NDBG20(("skipping topo change received during reset"));
6287                 save_node = topo_node;
6288                 topo_node = topo_node->next;
6289                 ASSERT(save_node);
6290                 kmem_free(save_node, sizeof (mptsas_topo_change_list_t));
6291                 mutex_exit(&mpt->m_mutex);
6292 
6293                 if ((flags == MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE) ||
6294                     (flags == MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED) ||
6295                     (flags == MPTSAS_TOPO_FLAG_RAID_ASSOCIATED)) {
6296                         /*
6297                          * If direct attached device associated, make sure
6298                          * reset the parent before start the next one. But
6299                          * all devices associated with expander shares the
6300                          * parent.  Also, reset parent if this is for RAID.
6301                          */
6302                         parent = NULL;
6303                 }
6304         }
6305 out:
6306         kmem_free(phy_mask_name, MPTSAS_MAX_PHYS);
6307 }
6308 
6309 static void
6310 mptsas_handle_topo_change(mptsas_topo_change_list_t *topo_node,
6311     dev_info_t *parent)
6312 {
6313         mptsas_target_t *ptgt = NULL;
6314         mptsas_smp_t    *psmp = NULL;
6315         mptsas_t        *mpt = (void *)topo_node->mpt;
6316         uint16_t        devhdl;
6317         uint16_t        attached_devhdl;
6318         uint64_t        sas_wwn = 0;
6319         int             rval = 0;
6320         uint32_t        page_address;
6321         uint8_t         phy, flags;
6322         char            *addr = NULL;
6323         dev_info_t      *lundip;
6324         int             circ = 0, circ1 = 0;
6325         char            attached_wwnstr[MPTSAS_WWN_STRLEN];
6326 
6327         NDBG20(("mptsas%d handle_topo_change enter, devhdl 0x%x,"
6328             "event 0x%x, flags 0x%x", mpt->m_instance, topo_node->devhdl,
6329             topo_node->event, topo_node->flags));
6330 
6331         ASSERT(mutex_owned(&mpt->m_mutex));
6332 
6333         switch (topo_node->event) {
6334         case MPTSAS_DR_EVENT_RECONFIG_TARGET:
6335         {
6336                 char *phy_mask_name;
6337                 mptsas_phymask_t phymask = 0;
6338 
6339                 if (topo_node->flags == MPTSAS_TOPO_FLAG_RAID_ASSOCIATED) {
6340                         /*
6341                          * Get latest RAID info.
6342                          */
6343                         (void) mptsas_get_raid_info(mpt);
6344                         ptgt = refhash_linear_search(mpt->m_targets,
6345                             mptsas_target_eval_devhdl, &topo_node->devhdl);
6346                         if (ptgt == NULL)
6347                                 break;
6348                 } else {
6349                         ptgt = (void *)topo_node->object;
6350                 }
6351 
6352                 if (ptgt == NULL) {
6353                         /*
6354                          * If a Phys Disk was deleted, RAID info needs to be
6355                          * updated to reflect the new topology.
6356                          */
6357                         (void) mptsas_get_raid_info(mpt);
6358 
6359                         /*
6360                          * Get sas device page 0 by DevHandle to make sure if
6361                          * SSP/SATA end device exist.
6362                          */
6363                         page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
6364                             MPI2_SAS_DEVICE_PGAD_FORM_MASK) |
6365                             topo_node->devhdl;
6366 
6367                         rval = mptsas_get_target_device_info(mpt, page_address,
6368                             &devhdl, &ptgt);
6369                         if (rval == DEV_INFO_WRONG_DEVICE_TYPE) {
6370                                 mptsas_log(mpt, CE_NOTE,
6371                                     "mptsas_handle_topo_change: target %d is "
6372                                     "not a SAS/SATA device. \n",
6373                                     topo_node->devhdl);
6374                         } else if (rval == DEV_INFO_FAIL_ALLOC) {
6375                                 mptsas_log(mpt, CE_NOTE,
6376                                     "mptsas_handle_topo_change: could not "
6377                                     "allocate memory. \n");
6378                         }
6379                         /*
6380                          * If rval is DEV_INFO_PHYS_DISK than there is nothing
6381                          * else to do, just leave.
6382                          */
6383                         if (rval != DEV_INFO_SUCCESS) {
6384                                 return;
6385                         }
6386                 }
6387 
6388                 ASSERT(ptgt->m_devhdl == topo_node->devhdl);
6389 
6390                 mutex_exit(&mpt->m_mutex);
6391                 flags = topo_node->flags;
6392 
6393                 if (flags == MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED) {
6394                         phymask = ptgt->m_addr.mta_phymask;
6395                         phy_mask_name = kmem_zalloc(MPTSAS_MAX_PHYS, KM_SLEEP);
6396                         (void) sprintf(phy_mask_name, "%x", phymask);
6397                         parent = scsi_hba_iport_find(mpt->m_dip,
6398                             phy_mask_name);
6399                         kmem_free(phy_mask_name, MPTSAS_MAX_PHYS);
6400                         if (parent == NULL) {
6401                                 mptsas_log(mpt, CE_WARN, "Failed to find a "
6402                                     "iport for PD, should not happen!");
6403                                 mutex_enter(&mpt->m_mutex);
6404                                 break;
6405                         }
6406                 }
6407 
6408                 if (flags == MPTSAS_TOPO_FLAG_RAID_ASSOCIATED) {
6409                         ndi_devi_enter(parent, &circ1);
6410                         (void) mptsas_config_raid(parent, topo_node->devhdl,
6411                             &lundip);
6412                         ndi_devi_exit(parent, circ1);
6413                 } else {
6414                         /*
6415                          * hold nexus for bus configure
6416                          */
6417                         ndi_devi_enter(scsi_vhci_dip, &circ);
6418                         ndi_devi_enter(parent, &circ1);
6419                         rval = mptsas_config_target(parent, ptgt);
6420                         /*
6421                          * release nexus for bus configure
6422                          */
6423                         ndi_devi_exit(parent, circ1);
6424                         ndi_devi_exit(scsi_vhci_dip, circ);
6425 
6426                         /*
6427                          * Add parent's props for SMHBA support
6428                          */
6429                         if (flags == MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE) {
6430                                 bzero(attached_wwnstr,
6431                                     sizeof (attached_wwnstr));
6432                                 (void) sprintf(attached_wwnstr, "w%016"PRIx64,
6433                                     ptgt->m_addr.mta_wwn);
6434                                 if (ddi_prop_update_string(DDI_DEV_T_NONE,
6435                                     parent,
6436                                     SCSI_ADDR_PROP_ATTACHED_PORT,
6437                                     attached_wwnstr)
6438                                     != DDI_PROP_SUCCESS) {
6439                                         (void) ddi_prop_remove(DDI_DEV_T_NONE,
6440                                             parent,
6441                                             SCSI_ADDR_PROP_ATTACHED_PORT);
6442                                         mptsas_log(mpt, CE_WARN, "Failed to"
6443                                             "attached-port props");
6444                                         return;
6445                                 }
6446                                 if (ddi_prop_update_int(DDI_DEV_T_NONE, parent,
6447                                     MPTSAS_NUM_PHYS, 1) !=
6448                                     DDI_PROP_SUCCESS) {
6449                                         (void) ddi_prop_remove(DDI_DEV_T_NONE,
6450                                             parent, MPTSAS_NUM_PHYS);
6451                                         mptsas_log(mpt, CE_WARN, "Failed to"
6452                                             " create num-phys props");
6453                                         return;
6454                                 }
6455 
6456                                 /*
6457                                  * Update PHY info for smhba
6458                                  */
6459                                 mutex_enter(&mpt->m_mutex);
6460                                 if (mptsas_smhba_phy_init(mpt)) {
6461                                         mutex_exit(&mpt->m_mutex);
6462                                         mptsas_log(mpt, CE_WARN, "mptsas phy"
6463                                             " update failed");
6464                                         return;
6465                                 }
6466                                 mutex_exit(&mpt->m_mutex);
6467 
6468                                 /*
6469                                  * topo_node->un.physport is really the PHY#
6470                                  * for direct attached devices
6471                                  */
6472                                 mptsas_smhba_set_one_phy_props(mpt, parent,
6473                                     topo_node->un.physport, &attached_devhdl);
6474 
6475                                 if (ddi_prop_update_int(DDI_DEV_T_NONE, parent,
6476                                     MPTSAS_VIRTUAL_PORT, 0) !=
6477                                     DDI_PROP_SUCCESS) {
6478                                         (void) ddi_prop_remove(DDI_DEV_T_NONE,
6479                                             parent, MPTSAS_VIRTUAL_PORT);
6480                                         mptsas_log(mpt, CE_WARN,
6481                                             "mptsas virtual-port"
6482                                             "port prop update failed");
6483                                         return;
6484                                 }
6485                         }
6486                 }
6487                 mutex_enter(&mpt->m_mutex);
6488 
6489                 NDBG20(("mptsas%d handle_topo_change to online devhdl:%x, "
6490                     "phymask:%x.", mpt->m_instance, ptgt->m_devhdl,
6491                     ptgt->m_addr.mta_phymask));
6492                 break;
6493         }
6494         case MPTSAS_DR_EVENT_OFFLINE_TARGET:
6495         {
6496                 devhdl = topo_node->devhdl;
6497                 ptgt = refhash_linear_search(mpt->m_targets,
6498                     mptsas_target_eval_devhdl, &devhdl);
6499                 if (ptgt == NULL)
6500                         break;
6501 
6502                 sas_wwn = ptgt->m_addr.mta_wwn;
6503                 phy = ptgt->m_phynum;
6504 
6505                 addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
6506 
6507                 if (sas_wwn) {
6508                         (void) sprintf(addr, "w%016"PRIx64, sas_wwn);
6509                 } else {
6510                         (void) sprintf(addr, "p%x", phy);
6511                 }
6512                 ASSERT(ptgt->m_devhdl == devhdl);
6513 
6514                 if ((topo_node->flags == MPTSAS_TOPO_FLAG_RAID_ASSOCIATED) ||
6515                     (topo_node->flags ==
6516                     MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED)) {
6517                         /*
6518                          * Get latest RAID info if RAID volume status changes
6519                          * or Phys Disk status changes
6520                          */
6521                         (void) mptsas_get_raid_info(mpt);
6522                 }
6523                 /*
6524                  * Abort all outstanding command on the device
6525                  */
6526                 rval = mptsas_do_scsi_reset(mpt, devhdl);
6527                 if (rval) {
6528                         NDBG20(("mptsas%d handle_topo_change to reset target "
6529                             "before offline devhdl:%x, phymask:%x, rval:%x",
6530                             mpt->m_instance, ptgt->m_devhdl,
6531                             ptgt->m_addr.mta_phymask, rval));
6532                 }
6533 
6534                 mutex_exit(&mpt->m_mutex);
6535 
6536                 ndi_devi_enter(scsi_vhci_dip, &circ);
6537                 ndi_devi_enter(parent, &circ1);
6538                 rval = mptsas_offline_target(parent, addr);
6539                 ndi_devi_exit(parent, circ1);
6540                 ndi_devi_exit(scsi_vhci_dip, circ);
6541                 NDBG20(("mptsas%d handle_topo_change to offline devhdl:%x, "
6542                     "phymask:%x, rval:%x", mpt->m_instance,
6543                     ptgt->m_devhdl, ptgt->m_addr.mta_phymask, rval));
6544 
6545                 kmem_free(addr, SCSI_MAXNAMELEN);
6546 
6547                 /*
6548                  * Clear parent's props for SMHBA support
6549                  */
6550                 flags = topo_node->flags;
6551                 if (flags == MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE) {
6552                         bzero(attached_wwnstr, sizeof (attached_wwnstr));
6553                         if (ddi_prop_update_string(DDI_DEV_T_NONE, parent,
6554                             SCSI_ADDR_PROP_ATTACHED_PORT, attached_wwnstr) !=
6555                             DDI_PROP_SUCCESS) {
6556                                 (void) ddi_prop_remove(DDI_DEV_T_NONE, parent,
6557                                     SCSI_ADDR_PROP_ATTACHED_PORT);
6558                                 mptsas_log(mpt, CE_WARN, "mptsas attached port "
6559                                     "prop update failed");
6560                                 break;
6561                         }
6562                         if (ddi_prop_update_int(DDI_DEV_T_NONE, parent,
6563                             MPTSAS_NUM_PHYS, 0) !=
6564                             DDI_PROP_SUCCESS) {
6565                                 (void) ddi_prop_remove(DDI_DEV_T_NONE, parent,
6566                                     MPTSAS_NUM_PHYS);
6567                                 mptsas_log(mpt, CE_WARN, "mptsas num phys "
6568                                     "prop update failed");
6569                                 break;
6570                         }
6571                         if (ddi_prop_update_int(DDI_DEV_T_NONE, parent,
6572                             MPTSAS_VIRTUAL_PORT, 1) !=
6573                             DDI_PROP_SUCCESS) {
6574                                 (void) ddi_prop_remove(DDI_DEV_T_NONE, parent,
6575                                     MPTSAS_VIRTUAL_PORT);
6576                                 mptsas_log(mpt, CE_WARN, "mptsas virtual port "
6577                                     "prop update failed");
6578                                 break;
6579                         }
6580                 }
6581 
6582                 mutex_enter(&mpt->m_mutex);
6583                 ptgt->m_led_status = 0;
6584                 (void) mptsas_flush_led_status(mpt, ptgt);
6585                 if (rval == DDI_SUCCESS) {
6586                         refhash_remove(mpt->m_targets, ptgt);
6587                         ptgt = NULL;
6588                 } else {
6589                         /*
6590                          * clean DR_INTRANSITION flag to allow I/O down to
6591                          * PHCI driver since failover finished.
6592                          * Invalidate the devhdl
6593                          */
6594                         ptgt->m_devhdl = MPTSAS_INVALID_DEVHDL;
6595                         ptgt->m_tgt_unconfigured = 0;
6596                         mutex_enter(&mpt->m_tx_waitq_mutex);
6597                         ptgt->m_dr_flag = MPTSAS_DR_INACTIVE;
6598                         mutex_exit(&mpt->m_tx_waitq_mutex);
6599                 }
6600 
6601                 /*
6602                  * Send SAS IO Unit Control to free the dev handle
6603                  */
6604                 if ((flags == MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE) ||
6605                     (flags == MPTSAS_TOPO_FLAG_EXPANDER_ATTACHED_DEVICE)) {
6606                         rval = mptsas_free_devhdl(mpt, devhdl);
6607 
6608                         NDBG20(("mptsas%d handle_topo_change to remove "
6609                             "devhdl:%x, rval:%x", mpt->m_instance, devhdl,
6610                             rval));
6611                 }
6612 
6613                 break;
6614         }
6615         case MPTSAS_TOPO_FLAG_REMOVE_HANDLE:
6616         {
6617                 devhdl = topo_node->devhdl;
6618                 /*
6619                  * If this is the remove handle event, do a reset first.
6620                  */
6621                 if (topo_node->event == MPTSAS_TOPO_FLAG_REMOVE_HANDLE) {
6622                         rval = mptsas_do_scsi_reset(mpt, devhdl);
6623                         if (rval) {
6624                                 NDBG20(("mpt%d reset target before remove "
6625                                     "devhdl:%x, rval:%x", mpt->m_instance,
6626                                     devhdl, rval));
6627                         }
6628                 }
6629 
6630                 /*
6631                  * Send SAS IO Unit Control to free the dev handle
6632                  */
6633                 rval = mptsas_free_devhdl(mpt, devhdl);
6634                 NDBG20(("mptsas%d handle_topo_change to remove "
6635                     "devhdl:%x, rval:%x", mpt->m_instance, devhdl,
6636                     rval));
6637                 break;
6638         }
6639         case MPTSAS_DR_EVENT_RECONFIG_SMP:
6640         {
6641                 mptsas_smp_t smp;
6642                 dev_info_t *smpdip;
6643 
6644                 devhdl = topo_node->devhdl;
6645 
6646                 page_address = (MPI2_SAS_EXPAND_PGAD_FORM_HNDL &
6647                     MPI2_SAS_EXPAND_PGAD_FORM_MASK) | (uint32_t)devhdl;
6648                 rval = mptsas_get_sas_expander_page0(mpt, page_address, &smp);
6649                 if (rval != DDI_SUCCESS) {
6650                         mptsas_log(mpt, CE_WARN, "failed to online smp, "
6651                             "handle %x", devhdl);
6652                         return;
6653                 }
6654 
6655                 psmp = mptsas_smp_alloc(mpt, &smp);
6656                 if (psmp == NULL) {
6657                         return;
6658                 }
6659 
6660                 mutex_exit(&mpt->m_mutex);
6661                 ndi_devi_enter(parent, &circ1);
6662                 (void) mptsas_online_smp(parent, psmp, &smpdip);
6663                 ndi_devi_exit(parent, circ1);
6664 
6665                 mutex_enter(&mpt->m_mutex);
6666                 break;
6667         }
6668         case MPTSAS_DR_EVENT_OFFLINE_SMP:
6669         {
6670                 devhdl = topo_node->devhdl;
6671                 uint32_t dev_info;
6672 
6673                 psmp = refhash_linear_search(mpt->m_smp_targets,
6674                     mptsas_smp_eval_devhdl, &devhdl);
6675                 if (psmp == NULL)
6676                         break;
6677                 /*
6678                  * The mptsas_smp_t data is released only if the dip is offlined
6679                  * successfully.
6680                  */
6681                 mutex_exit(&mpt->m_mutex);
6682 
6683                 ndi_devi_enter(parent, &circ1);
6684                 rval = mptsas_offline_smp(parent, psmp, NDI_DEVI_REMOVE);
6685                 ndi_devi_exit(parent, circ1);
6686 
6687                 dev_info = psmp->m_deviceinfo;
6688                 if ((dev_info & DEVINFO_DIRECT_ATTACHED) ==
6689                     DEVINFO_DIRECT_ATTACHED) {
6690                         if (ddi_prop_update_int(DDI_DEV_T_NONE, parent,
6691                             MPTSAS_VIRTUAL_PORT, 1) !=
6692                             DDI_PROP_SUCCESS) {
6693                                 (void) ddi_prop_remove(DDI_DEV_T_NONE, parent,
6694                                     MPTSAS_VIRTUAL_PORT);
6695                                 mptsas_log(mpt, CE_WARN, "mptsas virtual port "
6696                                     "prop update failed");
6697                                 return;
6698                         }
6699                         /*
6700                          * Check whether the smp connected to the iport,
6701                          */
6702                         if (ddi_prop_update_int(DDI_DEV_T_NONE, parent,
6703                             MPTSAS_NUM_PHYS, 0) !=
6704                             DDI_PROP_SUCCESS) {
6705                                 (void) ddi_prop_remove(DDI_DEV_T_NONE, parent,
6706                                     MPTSAS_NUM_PHYS);
6707                                 mptsas_log(mpt, CE_WARN, "mptsas num phys"
6708                                     "prop update failed");
6709                                 return;
6710                         }
6711                         /*
6712                          * Clear parent's attached-port props
6713                          */
6714                         bzero(attached_wwnstr, sizeof (attached_wwnstr));
6715                         if (ddi_prop_update_string(DDI_DEV_T_NONE, parent,
6716                             SCSI_ADDR_PROP_ATTACHED_PORT, attached_wwnstr) !=
6717                             DDI_PROP_SUCCESS) {
6718                                 (void) ddi_prop_remove(DDI_DEV_T_NONE, parent,
6719                                     SCSI_ADDR_PROP_ATTACHED_PORT);
6720                                 mptsas_log(mpt, CE_WARN, "mptsas attached port "
6721                                     "prop update failed");
6722                                 return;
6723                         }
6724                 }
6725 
6726                 mutex_enter(&mpt->m_mutex);
6727                 NDBG20(("mptsas%d handle_topo_change to remove devhdl:%x, "
6728                     "rval:%x", mpt->m_instance, psmp->m_devhdl, rval));
6729                 if (rval == DDI_SUCCESS) {
6730                         refhash_remove(mpt->m_smp_targets, psmp);
6731                 } else {
6732                         psmp->m_devhdl = MPTSAS_INVALID_DEVHDL;
6733                 }
6734 
6735                 bzero(attached_wwnstr, sizeof (attached_wwnstr));
6736 
6737                 break;
6738         }
6739         default:
6740                 return;
6741         }
6742 }
6743 
6744 /*
6745  * Record the event if its type is enabled in mpt instance by ioctl.
6746  */
6747 static void
6748 mptsas_record_event(void *args)
6749 {
6750         m_replyh_arg_t                  *replyh_arg;
6751         pMpi2EventNotificationReply_t   eventreply;
6752         uint32_t                        event, rfm;
6753         mptsas_t                        *mpt;
6754         int                             i, j;
6755         uint16_t                        event_data_len;
6756         boolean_t                       sendAEN = FALSE;
6757 
6758         replyh_arg = (m_replyh_arg_t *)args;
6759         rfm = replyh_arg->rfm;
6760         mpt = replyh_arg->mpt;
6761 
6762         eventreply = (pMpi2EventNotificationReply_t)
6763             (mpt->m_reply_frame + (rfm -
6764             (mpt->m_reply_frame_dma_addr & 0xffffffffu)));
6765         event = ddi_get16(mpt->m_acc_reply_frame_hdl, &eventreply->Event);
6766 
6767 
6768         /*
6769          * Generate a system event to let anyone who cares know that a
6770          * LOG_ENTRY_ADDED event has occurred.  This is sent no matter what the
6771          * event mask is set to.
6772          */
6773         if (event == MPI2_EVENT_LOG_ENTRY_ADDED) {
6774                 sendAEN = TRUE;
6775         }
6776 
6777         /*
6778          * Record the event only if it is not masked.  Determine which dword
6779          * and bit of event mask to test.
6780          */
6781         i = (uint8_t)(event / 32);
6782         j = (uint8_t)(event % 32);
6783         if ((i < 4) && ((1 << j) & mpt->m_event_mask[i])) {
6784                 i = mpt->m_event_index;
6785                 mpt->m_events[i].Type = event;
6786                 mpt->m_events[i].Number = ++mpt->m_event_number;
6787                 bzero(mpt->m_events[i].Data, MPTSAS_MAX_EVENT_DATA_LENGTH * 4);
6788                 event_data_len = ddi_get16(mpt->m_acc_reply_frame_hdl,
6789                     &eventreply->EventDataLength);
6790 
6791                 if (event_data_len > 0) {
6792                         /*
6793                          * Limit data to size in m_event entry
6794                          */
6795                         if (event_data_len > MPTSAS_MAX_EVENT_DATA_LENGTH) {
6796                                 event_data_len = MPTSAS_MAX_EVENT_DATA_LENGTH;
6797                         }
6798                         for (j = 0; j < event_data_len; j++) {
6799                                 mpt->m_events[i].Data[j] =
6800                                     ddi_get32(mpt->m_acc_reply_frame_hdl,
6801                                     &(eventreply->EventData[j]));
6802                         }
6803 
6804                         /*
6805                          * check for index wrap-around
6806                          */
6807                         if (++i == MPTSAS_EVENT_QUEUE_SIZE) {
6808                                 i = 0;
6809                         }
6810                         mpt->m_event_index = (uint8_t)i;
6811 
6812                         /*
6813                          * Set flag to send the event.
6814                          */
6815                         sendAEN = TRUE;
6816                 }
6817         }
6818 
6819         /*
6820          * Generate a system event if flag is set to let anyone who cares know
6821          * that an event has occurred.
6822          */
6823         if (sendAEN) {
6824                 (void) ddi_log_sysevent(mpt->m_dip, DDI_VENDOR_LSI, "MPT_SAS",
6825                     "SAS", NULL, NULL, DDI_NOSLEEP);
6826         }
6827 }
6828 
6829 #define SMP_RESET_IN_PROGRESS MPI2_EVENT_SAS_TOPO_LR_SMP_RESET_IN_PROGRESS
6830 /*
6831  * handle sync events from ioc in interrupt
6832  * return value:
6833  * DDI_SUCCESS: The event is handled by this func
6834  * DDI_FAILURE: Event is not handled
6835  */
6836 static int
6837 mptsas_handle_event_sync(void *args)
6838 {
6839         m_replyh_arg_t                  *replyh_arg;
6840         pMpi2EventNotificationReply_t   eventreply;
6841         uint32_t                        event, rfm;
6842         mptsas_t                        *mpt;
6843         uint_t                          iocstatus;
6844 
6845         replyh_arg = (m_replyh_arg_t *)args;
6846         rfm = replyh_arg->rfm;
6847         mpt = replyh_arg->mpt;
6848 
6849         ASSERT(mutex_owned(&mpt->m_mutex));
6850 
6851         eventreply = (pMpi2EventNotificationReply_t)
6852             (mpt->m_reply_frame + (rfm -
6853             (mpt->m_reply_frame_dma_addr & 0xffffffffu)));
6854         event = ddi_get16(mpt->m_acc_reply_frame_hdl, &eventreply->Event);
6855 
6856         if (iocstatus = ddi_get16(mpt->m_acc_reply_frame_hdl,
6857             &eventreply->IOCStatus)) {
6858                 if (iocstatus == MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
6859                         mptsas_log(mpt, CE_WARN,
6860                             "!mptsas_handle_event_sync: event 0x%x, "
6861                             "IOCStatus=0x%x, "
6862                             "IOCLogInfo=0x%x", event, iocstatus,
6863                             ddi_get32(mpt->m_acc_reply_frame_hdl,
6864                             &eventreply->IOCLogInfo));
6865                 } else {
6866                         mptsas_log(mpt, CE_WARN,
6867                             "mptsas_handle_event_sync: event 0x%x, "
6868                             "IOCStatus=0x%x, "
6869                             "(IOCLogInfo=0x%x)", event, iocstatus,
6870                             ddi_get32(mpt->m_acc_reply_frame_hdl,
6871                             &eventreply->IOCLogInfo));
6872                 }
6873         }
6874 
6875         /*
6876          * figure out what kind of event we got and handle accordingly
6877          */
6878         switch (event) {
6879         case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
6880         {
6881                 pMpi2EventDataSasTopologyChangeList_t   sas_topo_change_list;
6882                 uint8_t                         num_entries, expstatus, phy;
6883                 uint8_t                         phystatus, physport, state, i;
6884                 uint8_t                         start_phy_num, link_rate;
6885                 uint16_t                        dev_handle, reason_code;
6886                 uint16_t                        enc_handle, expd_handle;
6887                 char                            string[80], curr[80], prev[80];
6888                 mptsas_topo_change_list_t       *topo_head = NULL;
6889                 mptsas_topo_change_list_t       *topo_tail = NULL;
6890                 mptsas_topo_change_list_t       *topo_node = NULL;
6891                 mptsas_target_t                 *ptgt;
6892                 mptsas_smp_t                    *psmp;
6893                 uint8_t                         flags = 0, exp_flag;
6894                 smhba_info_t                    *pSmhba = NULL;
6895 
6896                 NDBG20(("mptsas_handle_event_sync: SAS topology change"));
6897 
6898                 sas_topo_change_list = (pMpi2EventDataSasTopologyChangeList_t)
6899                     eventreply->EventData;
6900 
6901                 enc_handle = ddi_get16(mpt->m_acc_reply_frame_hdl,
6902                     &sas_topo_change_list->EnclosureHandle);
6903                 expd_handle = ddi_get16(mpt->m_acc_reply_frame_hdl,
6904                     &sas_topo_change_list->ExpanderDevHandle);
6905                 num_entries = ddi_get8(mpt->m_acc_reply_frame_hdl,
6906                     &sas_topo_change_list->NumEntries);
6907                 start_phy_num = ddi_get8(mpt->m_acc_reply_frame_hdl,
6908                     &sas_topo_change_list->StartPhyNum);
6909                 expstatus = ddi_get8(mpt->m_acc_reply_frame_hdl,
6910                     &sas_topo_change_list->ExpStatus);
6911                 physport = ddi_get8(mpt->m_acc_reply_frame_hdl,
6912                     &sas_topo_change_list->PhysicalPort);
6913 
6914                 string[0] = 0;
6915                 if (expd_handle) {
6916                         flags = MPTSAS_TOPO_FLAG_EXPANDER_ASSOCIATED;
6917                         switch (expstatus) {
6918                         case MPI2_EVENT_SAS_TOPO_ES_ADDED:
6919                                 (void) sprintf(string, " added");
6920                                 /*
6921                                  * New expander device added
6922                                  */
6923                                 mpt->m_port_chng = 1;
6924                                 topo_node = kmem_zalloc(
6925                                     sizeof (mptsas_topo_change_list_t),
6926                                     KM_SLEEP);
6927                                 topo_node->mpt = mpt;
6928                                 topo_node->event = MPTSAS_DR_EVENT_RECONFIG_SMP;
6929                                 topo_node->un.physport = physport;
6930                                 topo_node->devhdl = expd_handle;
6931                                 topo_node->flags = flags;
6932                                 topo_node->object = NULL;
6933                                 if (topo_head == NULL) {
6934                                         topo_head = topo_tail = topo_node;
6935                                 } else {
6936                                         topo_tail->next = topo_node;
6937                                         topo_tail = topo_node;
6938                                 }
6939                                 break;
6940                         case MPI2_EVENT_SAS_TOPO_ES_NOT_RESPONDING:
6941                                 (void) sprintf(string, " not responding, "
6942                                     "removed");
6943                                 psmp = refhash_linear_search(mpt->m_smp_targets,
6944                                     mptsas_smp_eval_devhdl, &expd_handle);
6945                                 if (psmp == NULL)
6946                                         break;
6947 
6948                                 topo_node = kmem_zalloc(
6949                                     sizeof (mptsas_topo_change_list_t),
6950                                     KM_SLEEP);
6951                                 topo_node->mpt = mpt;
6952                                 topo_node->un.phymask =
6953                                     psmp->m_addr.mta_phymask;
6954                                 topo_node->event = MPTSAS_DR_EVENT_OFFLINE_SMP;
6955                                 topo_node->devhdl = expd_handle;
6956                                 topo_node->flags = flags;
6957                                 topo_node->object = NULL;
6958                                 if (topo_head == NULL) {
6959                                         topo_head = topo_tail = topo_node;
6960                                 } else {
6961                                         topo_tail->next = topo_node;
6962                                         topo_tail = topo_node;
6963                                 }
6964                                 break;
6965                         case MPI2_EVENT_SAS_TOPO_ES_RESPONDING:
6966                                 break;
6967                         case MPI2_EVENT_SAS_TOPO_ES_DELAY_NOT_RESPONDING:
6968                                 (void) sprintf(string, " not responding, "
6969                                     "delaying removal");
6970                                 break;
6971                         default:
6972                                 break;
6973                         }
6974                 } else {
6975                         flags = MPTSAS_TOPO_FLAG_DIRECT_ATTACHED_DEVICE;
6976                 }
6977 
6978                 NDBG20(("SAS TOPOLOGY CHANGE for enclosure %x expander %x%s\n",
6979                     enc_handle, expd_handle, string));
6980                 for (i = 0; i < num_entries; i++) {
6981                         phy = i + start_phy_num;
6982                         phystatus = ddi_get8(mpt->m_acc_reply_frame_hdl,
6983                             &sas_topo_change_list->PHY[i].PhyStatus);
6984                         dev_handle = ddi_get16(mpt->m_acc_reply_frame_hdl,
6985                             &sas_topo_change_list->PHY[i].AttachedDevHandle);
6986                         reason_code = phystatus & MPI2_EVENT_SAS_TOPO_RC_MASK;
6987                         /*
6988                          * Filter out processing of Phy Vacant Status unless
6989                          * the reason code is "Not Responding".  Process all
6990                          * other combinations of Phy Status and Reason Codes.
6991                          */
6992                         if ((phystatus &
6993                             MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT) &&
6994                             (reason_code !=
6995                             MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING)) {
6996                                 continue;
6997                         }
6998                         curr[0] = 0;
6999                         prev[0] = 0;
7000                         string[0] = 0;
7001                         switch (reason_code) {
7002                         case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
7003                         {
7004                                 NDBG20(("mptsas%d phy %d physical_port %d "
7005                                     "dev_handle %d added", mpt->m_instance, phy,
7006                                     physport, dev_handle));
7007                                 link_rate = ddi_get8(mpt->m_acc_reply_frame_hdl,
7008                                     &sas_topo_change_list->PHY[i].LinkRate);
7009                                 state = (link_rate &
7010                                     MPI2_EVENT_SAS_TOPO_LR_CURRENT_MASK) >>
7011                                     MPI2_EVENT_SAS_TOPO_LR_CURRENT_SHIFT;
7012                                 switch (state) {
7013                                 case MPI2_EVENT_SAS_TOPO_LR_PHY_DISABLED:
7014                                         (void) sprintf(curr, "is disabled");
7015                                         break;
7016                                 case MPI2_EVENT_SAS_TOPO_LR_NEGOTIATION_FAILED:
7017                                         (void) sprintf(curr, "is offline, "
7018                                             "failed speed negotiation");
7019                                         break;
7020                                 case MPI2_EVENT_SAS_TOPO_LR_SATA_OOB_COMPLETE:
7021                                         (void) sprintf(curr, "SATA OOB "
7022                                             "complete");
7023                                         break;
7024                                 case SMP_RESET_IN_PROGRESS:
7025                                         (void) sprintf(curr, "SMP reset in "
7026                                             "progress");
7027                                         break;
7028                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_1_5:
7029                                         (void) sprintf(curr, "is online at "
7030                                             "1.5 Gbps");
7031                                         break;
7032                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_3_0:
7033                                         (void) sprintf(curr, "is online at 3.0 "
7034                                             "Gbps");
7035                                         break;
7036                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_6_0:
7037                                         (void) sprintf(curr, "is online at 6.0 "
7038                                             "Gbps");
7039                                         break;
7040                                 case MPI25_EVENT_SAS_TOPO_LR_RATE_12_0:
7041                                         (void) sprintf(curr,
7042                                             "is online at 12.0 Gbps");
7043                                         break;
7044                                 default:
7045                                         (void) sprintf(curr, "state is "
7046                                             "unknown");
7047                                         break;
7048                                 }
7049                                 /*
7050                                  * New target device added into the system.
7051                                  * Set association flag according to if an
7052                                  * expander is used or not.
7053                                  */
7054                                 exp_flag =
7055                                     MPTSAS_TOPO_FLAG_EXPANDER_ATTACHED_DEVICE;
7056                                 if (flags ==
7057                                     MPTSAS_TOPO_FLAG_EXPANDER_ASSOCIATED) {
7058                                         flags = exp_flag;
7059                                 }
7060                                 topo_node = kmem_zalloc(
7061                                     sizeof (mptsas_topo_change_list_t),
7062                                     KM_SLEEP);
7063                                 topo_node->mpt = mpt;
7064                                 topo_node->event =
7065                                     MPTSAS_DR_EVENT_RECONFIG_TARGET;
7066                                 if (expd_handle == 0) {
7067                                         /*
7068                                          * Per MPI 2, if expander dev handle
7069                                          * is 0, it's a directly attached
7070                                          * device. So driver use PHY to decide
7071                                          * which iport is associated
7072                                          */
7073                                         physport = phy;
7074                                         mpt->m_port_chng = 1;
7075                                 }
7076                                 topo_node->un.physport = physport;
7077                                 topo_node->devhdl = dev_handle;
7078                                 topo_node->flags = flags;
7079                                 topo_node->object = NULL;
7080                                 if (topo_head == NULL) {
7081                                         topo_head = topo_tail = topo_node;
7082                                 } else {
7083                                         topo_tail->next = topo_node;
7084                                         topo_tail = topo_node;
7085                                 }
7086                                 break;
7087                         }
7088                         case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
7089                         {
7090                                 NDBG20(("mptsas%d phy %d physical_port %d "
7091                                     "dev_handle %d removed", mpt->m_instance,
7092                                     phy, physport, dev_handle));
7093                                 /*
7094                                  * Set association flag according to if an
7095                                  * expander is used or not.
7096                                  */
7097                                 exp_flag =
7098                                     MPTSAS_TOPO_FLAG_EXPANDER_ATTACHED_DEVICE;
7099                                 if (flags ==
7100                                     MPTSAS_TOPO_FLAG_EXPANDER_ASSOCIATED) {
7101                                         flags = exp_flag;
7102                                 }
7103                                 /*
7104                                  * Target device is removed from the system
7105                                  * Before the device is really offline from
7106                                  * from system.
7107                                  */
7108                                 ptgt = refhash_linear_search(mpt->m_targets,
7109                                     mptsas_target_eval_devhdl, &dev_handle);
7110                                 /*
7111                                  * If ptgt is NULL here, it means that the
7112                                  * DevHandle is not in the hash table.  This is
7113                                  * reasonable sometimes.  For example, if a
7114                                  * disk was pulled, then added, then pulled
7115                                  * again, the disk will not have been put into
7116                                  * the hash table because the add event will
7117                                  * have an invalid phymask.  BUT, this does not
7118                                  * mean that the DevHandle is invalid.  The
7119                                  * controller will still have a valid DevHandle
7120                                  * that must be removed.  To do this, use the
7121                                  * MPTSAS_TOPO_FLAG_REMOVE_HANDLE event.
7122                                  */
7123                                 if (ptgt == NULL) {
7124                                         topo_node = kmem_zalloc(
7125                                             sizeof (mptsas_topo_change_list_t),
7126                                             KM_SLEEP);
7127                                         topo_node->mpt = mpt;
7128                                         topo_node->un.phymask = 0;
7129                                         topo_node->event =
7130                                             MPTSAS_TOPO_FLAG_REMOVE_HANDLE;
7131                                         topo_node->devhdl = dev_handle;
7132                                         topo_node->flags = flags;
7133                                         topo_node->object = NULL;
7134                                         if (topo_head == NULL) {
7135                                                 topo_head = topo_tail =
7136                                                     topo_node;
7137                                         } else {
7138                                                 topo_tail->next = topo_node;
7139                                                 topo_tail = topo_node;
7140                                         }
7141                                         break;
7142                                 }
7143 
7144                                 /*
7145                                  * Update DR flag immediately avoid I/O failure
7146                                  * before failover finish. Pay attention to the
7147                                  * mutex protect, we need grab m_tx_waitq_mutex
7148                                  * during set m_dr_flag because we won't add
7149                                  * the following command into waitq, instead,
7150                                  * we need return TRAN_BUSY in the tran_start
7151                                  * context.
7152                                  */
7153                                 mutex_enter(&mpt->m_tx_waitq_mutex);
7154                                 ptgt->m_dr_flag = MPTSAS_DR_INTRANSITION;
7155                                 mutex_exit(&mpt->m_tx_waitq_mutex);
7156 
7157                                 topo_node = kmem_zalloc(
7158                                     sizeof (mptsas_topo_change_list_t),
7159                                     KM_SLEEP);
7160                                 topo_node->mpt = mpt;
7161                                 topo_node->un.phymask =
7162                                     ptgt->m_addr.mta_phymask;
7163                                 topo_node->event =
7164                                     MPTSAS_DR_EVENT_OFFLINE_TARGET;
7165                                 topo_node->devhdl = dev_handle;
7166                                 topo_node->flags = flags;
7167                                 topo_node->object = NULL;
7168                                 if (topo_head == NULL) {
7169                                         topo_head = topo_tail = topo_node;
7170                                 } else {
7171                                         topo_tail->next = topo_node;
7172                                         topo_tail = topo_node;
7173                                 }
7174                                 break;
7175                         }
7176                         case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
7177                                 link_rate = ddi_get8(mpt->m_acc_reply_frame_hdl,
7178                                     &sas_topo_change_list->PHY[i].LinkRate);
7179                                 state = (link_rate &
7180                                     MPI2_EVENT_SAS_TOPO_LR_CURRENT_MASK) >>
7181                                     MPI2_EVENT_SAS_TOPO_LR_CURRENT_SHIFT;
7182                                 pSmhba = &mpt->m_phy_info[i].smhba_info;
7183                                 pSmhba->negotiated_link_rate = state;
7184                                 switch (state) {
7185                                 case MPI2_EVENT_SAS_TOPO_LR_PHY_DISABLED:
7186                                         (void) sprintf(curr, "is disabled");
7187                                         mptsas_smhba_log_sysevent(mpt,
7188                                             ESC_SAS_PHY_EVENT,
7189                                             SAS_PHY_REMOVE,
7190                                             &mpt->m_phy_info[i].smhba_info);
7191                                         mpt->m_phy_info[i].smhba_info.
7192                                             negotiated_link_rate
7193                                             = 0x1;
7194                                         break;
7195                                 case MPI2_EVENT_SAS_TOPO_LR_NEGOTIATION_FAILED:
7196                                         (void) sprintf(curr, "is offline, "
7197                                             "failed speed negotiation");
7198                                         mptsas_smhba_log_sysevent(mpt,
7199                                             ESC_SAS_PHY_EVENT,
7200                                             SAS_PHY_OFFLINE,
7201                                             &mpt->m_phy_info[i].smhba_info);
7202                                         break;
7203                                 case MPI2_EVENT_SAS_TOPO_LR_SATA_OOB_COMPLETE:
7204                                         (void) sprintf(curr, "SATA OOB "
7205                                             "complete");
7206                                         break;
7207                                 case SMP_RESET_IN_PROGRESS:
7208                                         (void) sprintf(curr, "SMP reset in "
7209                                             "progress");
7210                                         break;
7211                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_1_5:
7212                                         (void) sprintf(curr, "is online at "
7213                                             "1.5 Gbps");
7214                                         if ((expd_handle == 0) &&
7215                                             (enc_handle == 1)) {
7216                                                 mpt->m_port_chng = 1;
7217                                         }
7218                                         mptsas_smhba_log_sysevent(mpt,
7219                                             ESC_SAS_PHY_EVENT,
7220                                             SAS_PHY_ONLINE,
7221                                             &mpt->m_phy_info[i].smhba_info);
7222                                         break;
7223                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_3_0:
7224                                         (void) sprintf(curr, "is online at 3.0 "
7225                                             "Gbps");
7226                                         if ((expd_handle == 0) &&
7227                                             (enc_handle == 1)) {
7228                                                 mpt->m_port_chng = 1;
7229                                         }
7230                                         mptsas_smhba_log_sysevent(mpt,
7231                                             ESC_SAS_PHY_EVENT,
7232                                             SAS_PHY_ONLINE,
7233                                             &mpt->m_phy_info[i].smhba_info);
7234                                         break;
7235                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_6_0:
7236                                         (void) sprintf(curr, "is online at "
7237                                             "6.0 Gbps");
7238                                         if ((expd_handle == 0) &&
7239                                             (enc_handle == 1)) {
7240                                                 mpt->m_port_chng = 1;
7241                                         }
7242                                         mptsas_smhba_log_sysevent(mpt,
7243                                             ESC_SAS_PHY_EVENT,
7244                                             SAS_PHY_ONLINE,
7245                                             &mpt->m_phy_info[i].smhba_info);
7246                                         break;
7247                                 case MPI25_EVENT_SAS_TOPO_LR_RATE_12_0:
7248                                         (void) sprintf(curr, "is online at "
7249                                             "12.0 Gbps");
7250                                         if ((expd_handle == 0) &&
7251                                             (enc_handle == 1)) {
7252                                                 mpt->m_port_chng = 1;
7253                                         }
7254                                         mptsas_smhba_log_sysevent(mpt,
7255                                             ESC_SAS_PHY_EVENT,
7256                                             SAS_PHY_ONLINE,
7257                                             &mpt->m_phy_info[i].smhba_info);
7258                                         break;
7259                                 default:
7260                                         (void) sprintf(curr, "state is "
7261                                             "unknown");
7262                                         break;
7263                                 }
7264 
7265                                 state = (link_rate &
7266                                     MPI2_EVENT_SAS_TOPO_LR_PREV_MASK) >>
7267                                     MPI2_EVENT_SAS_TOPO_LR_PREV_SHIFT;
7268                                 switch (state) {
7269                                 case MPI2_EVENT_SAS_TOPO_LR_PHY_DISABLED:
7270                                         (void) sprintf(prev, ", was disabled");
7271                                         break;
7272                                 case MPI2_EVENT_SAS_TOPO_LR_NEGOTIATION_FAILED:
7273                                         (void) sprintf(prev, ", was offline, "
7274                                             "failed speed negotiation");
7275                                         break;
7276                                 case MPI2_EVENT_SAS_TOPO_LR_SATA_OOB_COMPLETE:
7277                                         (void) sprintf(prev, ", was SATA OOB "
7278                                             "complete");
7279                                         break;
7280                                 case SMP_RESET_IN_PROGRESS:
7281                                         (void) sprintf(prev, ", was SMP reset "
7282                                             "in progress");
7283                                         break;
7284                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_1_5:
7285                                         (void) sprintf(prev, ", was online at "
7286                                             "1.5 Gbps");
7287                                         break;
7288                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_3_0:
7289                                         (void) sprintf(prev, ", was online at "
7290                                             "3.0 Gbps");
7291                                         break;
7292                                 case MPI2_EVENT_SAS_TOPO_LR_RATE_6_0:
7293                                         (void) sprintf(prev, ", was online at "
7294                                             "6.0 Gbps");
7295                                         break;
7296                                 case MPI25_EVENT_SAS_TOPO_LR_RATE_12_0:
7297                                         (void) sprintf(prev, ", was online at "
7298                                             "12.0 Gbps");
7299                                         break;
7300                                 default:
7301                                 break;
7302                                 }
7303                                 (void) sprintf(&string[strlen(string)], "link "
7304                                     "changed, ");
7305                                 break;
7306                         case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
7307                                 continue;
7308                         case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
7309                                 (void) sprintf(&string[strlen(string)],
7310                                     "target not responding, delaying "
7311                                     "removal");
7312                                 break;
7313                         }
7314                         NDBG20(("mptsas%d phy %d DevHandle %x, %s%s%s\n",
7315                             mpt->m_instance, phy, dev_handle, string, curr,
7316                             prev));
7317                 }
7318                 if (topo_head != NULL) {
7319                         /*
7320                          * Launch DR taskq to handle topology change
7321                          */
7322                         if ((ddi_taskq_dispatch(mpt->m_dr_taskq,
7323                             mptsas_handle_dr, (void *)topo_head,
7324                             DDI_NOSLEEP)) != DDI_SUCCESS) {
7325                                 while (topo_head != NULL) {
7326                                         topo_node = topo_head;
7327                                         topo_head = topo_head->next;
7328                                         kmem_free(topo_node,
7329                                             sizeof (mptsas_topo_change_list_t));
7330                                 }
7331                                 mptsas_log(mpt, CE_NOTE, "mptsas start taskq "
7332                                     "for handle SAS DR event failed. \n");
7333                         }
7334                 }
7335                 break;
7336         }
7337         case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7338         {
7339                 Mpi2EventDataIrConfigChangeList_t       *irChangeList;
7340                 mptsas_topo_change_list_t               *topo_head = NULL;
7341                 mptsas_topo_change_list_t               *topo_tail = NULL;
7342                 mptsas_topo_change_list_t               *topo_node = NULL;
7343                 mptsas_target_t                         *ptgt;
7344                 uint8_t                                 num_entries, i, reason;
7345                 uint16_t                                volhandle, diskhandle;
7346 
7347                 irChangeList = (pMpi2EventDataIrConfigChangeList_t)
7348                     eventreply->EventData;
7349                 num_entries = ddi_get8(mpt->m_acc_reply_frame_hdl,
7350                     &irChangeList->NumElements);
7351 
7352                 NDBG20(("mptsas%d IR_CONFIGURATION_CHANGE_LIST event received",
7353                     mpt->m_instance));
7354 
7355                 for (i = 0; i < num_entries; i++) {
7356                         reason = ddi_get8(mpt->m_acc_reply_frame_hdl,
7357                             &irChangeList->ConfigElement[i].ReasonCode);
7358                         volhandle = ddi_get16(mpt->m_acc_reply_frame_hdl,
7359                             &irChangeList->ConfigElement[i].VolDevHandle);
7360                         diskhandle = ddi_get16(mpt->m_acc_reply_frame_hdl,
7361                             &irChangeList->ConfigElement[i].PhysDiskDevHandle);
7362 
7363                         switch (reason) {
7364                         case MPI2_EVENT_IR_CHANGE_RC_ADDED:
7365                         case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
7366                         {
7367                                 NDBG20(("mptsas %d volume added\n",
7368                                     mpt->m_instance));
7369 
7370                                 topo_node = kmem_zalloc(
7371                                     sizeof (mptsas_topo_change_list_t),
7372                                     KM_SLEEP);
7373 
7374                                 topo_node->mpt = mpt;
7375                                 topo_node->event =
7376                                     MPTSAS_DR_EVENT_RECONFIG_TARGET;
7377                                 topo_node->un.physport = 0xff;
7378                                 topo_node->devhdl = volhandle;
7379                                 topo_node->flags =
7380                                     MPTSAS_TOPO_FLAG_RAID_ASSOCIATED;
7381                                 topo_node->object = NULL;
7382                                 if (topo_head == NULL) {
7383                                         topo_head = topo_tail = topo_node;
7384                                 } else {
7385                                         topo_tail->next = topo_node;
7386                                         topo_tail = topo_node;
7387                                 }
7388                                 break;
7389                         }
7390                         case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
7391                         case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
7392                         {
7393                                 NDBG20(("mptsas %d volume deleted\n",
7394                                     mpt->m_instance));
7395                                 ptgt = refhash_linear_search(mpt->m_targets,
7396                                     mptsas_target_eval_devhdl, &volhandle);
7397                                 if (ptgt == NULL)
7398                                         break;
7399 
7400                                 /*
7401                                  * Clear any flags related to volume
7402                                  */
7403                                 (void) mptsas_delete_volume(mpt, volhandle);
7404 
7405                                 /*
7406                                  * Update DR flag immediately avoid I/O failure
7407                                  */
7408                                 mutex_enter(&mpt->m_tx_waitq_mutex);
7409                                 ptgt->m_dr_flag = MPTSAS_DR_INTRANSITION;
7410                                 mutex_exit(&mpt->m_tx_waitq_mutex);
7411 
7412                                 topo_node = kmem_zalloc(
7413                                     sizeof (mptsas_topo_change_list_t),
7414                                     KM_SLEEP);
7415                                 topo_node->mpt = mpt;
7416                                 topo_node->un.phymask =
7417                                     ptgt->m_addr.mta_phymask;
7418                                 topo_node->event =
7419                                     MPTSAS_DR_EVENT_OFFLINE_TARGET;
7420                                 topo_node->devhdl = volhandle;
7421                                 topo_node->flags =
7422                                     MPTSAS_TOPO_FLAG_RAID_ASSOCIATED;
7423                                 topo_node->object = (void *)ptgt;
7424                                 if (topo_head == NULL) {
7425                                         topo_head = topo_tail = topo_node;
7426                                 } else {
7427                                         topo_tail->next = topo_node;
7428                                         topo_tail = topo_node;
7429                                 }
7430                                 break;
7431                         }
7432                         case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
7433                         case MPI2_EVENT_IR_CHANGE_RC_HIDE:
7434                         {
7435                                 ptgt = refhash_linear_search(mpt->m_targets,
7436                                     mptsas_target_eval_devhdl, &diskhandle);
7437                                 if (ptgt == NULL)
7438                                         break;
7439 
7440                                 /*
7441                                  * Update DR flag immediately avoid I/O failure
7442                                  */
7443                                 mutex_enter(&mpt->m_tx_waitq_mutex);
7444                                 ptgt->m_dr_flag = MPTSAS_DR_INTRANSITION;
7445                                 mutex_exit(&mpt->m_tx_waitq_mutex);
7446 
7447                                 topo_node = kmem_zalloc(
7448                                     sizeof (mptsas_topo_change_list_t),
7449                                     KM_SLEEP);
7450                                 topo_node->mpt = mpt;
7451                                 topo_node->un.phymask =
7452                                     ptgt->m_addr.mta_phymask;
7453                                 topo_node->event =
7454                                     MPTSAS_DR_EVENT_OFFLINE_TARGET;
7455                                 topo_node->devhdl = diskhandle;
7456                                 topo_node->flags =
7457                                     MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED;
7458                                 topo_node->object = (void *)ptgt;
7459                                 if (topo_head == NULL) {
7460                                         topo_head = topo_tail = topo_node;
7461                                 } else {
7462                                         topo_tail->next = topo_node;
7463                                         topo_tail = topo_node;
7464                                 }
7465                                 break;
7466                         }
7467                         case MPI2_EVENT_IR_CHANGE_RC_UNHIDE:
7468                         case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
7469                         {
7470                                 /*
7471                                  * The physical drive is released by a IR
7472                                  * volume. But we cannot get the the physport
7473                                  * or phynum from the event data, so we only
7474                                  * can get the physport/phynum after SAS
7475                                  * Device Page0 request for the devhdl.
7476                                  */
7477                                 topo_node = kmem_zalloc(
7478                                     sizeof (mptsas_topo_change_list_t),
7479                                     KM_SLEEP);
7480                                 topo_node->mpt = mpt;
7481                                 topo_node->un.phymask = 0;
7482                                 topo_node->event =
7483                                     MPTSAS_DR_EVENT_RECONFIG_TARGET;
7484                                 topo_node->devhdl = diskhandle;
7485                                 topo_node->flags =
7486                                     MPTSAS_TOPO_FLAG_RAID_PHYSDRV_ASSOCIATED;
7487                                 topo_node->object = NULL;
7488                                 mpt->m_port_chng = 1;
7489                                 if (topo_head == NULL) {
7490                                         topo_head = topo_tail = topo_node;
7491                                 } else {
7492                                         topo_tail->next = topo_node;
7493                                         topo_tail = topo_node;
7494                                 }
7495                                 break;
7496                         }
7497                         default:
7498                                 break;
7499                         }
7500                 }
7501 
7502                 if (topo_head != NULL) {
7503                         /*
7504                          * Launch DR taskq to handle topology change
7505                          */
7506                         if ((ddi_taskq_dispatch(mpt->m_dr_taskq,
7507                             mptsas_handle_dr, (void *)topo_head,
7508                             DDI_NOSLEEP)) != DDI_SUCCESS) {
7509                                 while (topo_head != NULL) {
7510                                         topo_node = topo_head;
7511                                         topo_head = topo_head->next;
7512                                         kmem_free(topo_node,
7513                                             sizeof (mptsas_topo_change_list_t));
7514                                 }
7515                                 mptsas_log(mpt, CE_NOTE, "mptsas start taskq "
7516                                     "for handle SAS DR event failed. \n");
7517                         }
7518                 }
7519                 break;
7520         }
7521         default:
7522                 return (DDI_FAILURE);
7523         }
7524 
7525         return (DDI_SUCCESS);
7526 }
7527 
7528 /*
7529  * handle events from ioc
7530  */
7531 static void
7532 mptsas_handle_event(void *args)
7533 {
7534         m_replyh_arg_t                  *replyh_arg;
7535         pMpi2EventNotificationReply_t   eventreply;
7536         uint32_t                        event, iocloginfo, rfm;
7537         uint32_t                        status;
7538         uint8_t                         port;
7539         mptsas_t                        *mpt;
7540         uint_t                          iocstatus;
7541 
7542         replyh_arg = (m_replyh_arg_t *)args;
7543         rfm = replyh_arg->rfm;
7544         mpt = replyh_arg->mpt;
7545 
7546         mutex_enter(&mpt->m_mutex);
7547         /*
7548          * If HBA is being reset, drop incoming event.
7549          */
7550         if (mpt->m_in_reset) {
7551                 NDBG20(("dropping event received prior to reset"));
7552                 mutex_exit(&mpt->m_mutex);
7553                 return;
7554         }
7555 
7556         eventreply = (pMpi2EventNotificationReply_t)
7557             (mpt->m_reply_frame + (rfm -
7558             (mpt->m_reply_frame_dma_addr & 0xffffffffu)));
7559         event = ddi_get16(mpt->m_acc_reply_frame_hdl, &eventreply->Event);
7560 
7561         if (iocstatus = ddi_get16(mpt->m_acc_reply_frame_hdl,
7562             &eventreply->IOCStatus)) {
7563                 if (iocstatus == MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
7564                         mptsas_log(mpt, CE_WARN,
7565                             "!mptsas_handle_event: IOCStatus=0x%x, "
7566                             "IOCLogInfo=0x%x", iocstatus,
7567                             ddi_get32(mpt->m_acc_reply_frame_hdl,
7568                             &eventreply->IOCLogInfo));
7569                 } else {
7570                         mptsas_log(mpt, CE_WARN,
7571                             "mptsas_handle_event: IOCStatus=0x%x, "
7572                             "IOCLogInfo=0x%x", iocstatus,
7573                             ddi_get32(mpt->m_acc_reply_frame_hdl,
7574                             &eventreply->IOCLogInfo));
7575                 }
7576         }
7577 
7578         /*
7579          * figure out what kind of event we got and handle accordingly
7580          */
7581         switch (event) {
7582         case MPI2_EVENT_LOG_ENTRY_ADDED:
7583                 break;
7584         case MPI2_EVENT_LOG_DATA:
7585                 iocloginfo = ddi_get32(mpt->m_acc_reply_frame_hdl,
7586                     &eventreply->IOCLogInfo);
7587                 NDBG20(("mptsas %d log info %x received.\n", mpt->m_instance,
7588                     iocloginfo));
7589                 break;
7590         case MPI2_EVENT_STATE_CHANGE:
7591                 NDBG20(("mptsas%d state change.", mpt->m_instance));
7592                 break;
7593         case MPI2_EVENT_HARD_RESET_RECEIVED:
7594                 NDBG20(("mptsas%d event change.", mpt->m_instance));
7595                 break;
7596         case MPI2_EVENT_SAS_DISCOVERY:
7597         {
7598                 MPI2_EVENT_DATA_SAS_DISCOVERY   *sasdiscovery;
7599                 char                            string[80];
7600                 uint8_t                         rc;
7601 
7602                 sasdiscovery =
7603                     (pMpi2EventDataSasDiscovery_t)eventreply->EventData;
7604 
7605                 rc = ddi_get8(mpt->m_acc_reply_frame_hdl,
7606                     &sasdiscovery->ReasonCode);
7607                 port = ddi_get8(mpt->m_acc_reply_frame_hdl,
7608                     &sasdiscovery->PhysicalPort);
7609                 status = ddi_get32(mpt->m_acc_reply_frame_hdl,
7610                     &sasdiscovery->DiscoveryStatus);
7611 
7612                 string[0] = 0;
7613                 switch (rc) {
7614                 case MPI2_EVENT_SAS_DISC_RC_STARTED:
7615                         (void) sprintf(string, "STARTING");
7616                         break;
7617                 case MPI2_EVENT_SAS_DISC_RC_COMPLETED:
7618                         (void) sprintf(string, "COMPLETED");
7619                         break;
7620                 default:
7621                         (void) sprintf(string, "UNKNOWN");
7622                         break;
7623                 }
7624 
7625                 NDBG20(("SAS DISCOVERY is %s for port %d, status %x", string,
7626                     port, status));
7627 
7628                 break;
7629         }
7630         case MPI2_EVENT_EVENT_CHANGE:
7631                 NDBG20(("mptsas%d event change.", mpt->m_instance));
7632                 break;
7633         case MPI2_EVENT_TASK_SET_FULL:
7634         {
7635                 pMpi2EventDataTaskSetFull_t     taskfull;
7636 
7637                 taskfull = (pMpi2EventDataTaskSetFull_t)eventreply->EventData;
7638 
7639                 NDBG20(("TASK_SET_FULL received for mptsas%d, depth %d\n",
7640                     mpt->m_instance,  ddi_get16(mpt->m_acc_reply_frame_hdl,
7641                     &taskfull->CurrentDepth)));
7642                 break;
7643         }
7644         case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
7645         {
7646                 /*
7647                  * SAS TOPOLOGY CHANGE LIST Event has already been handled
7648                  * in mptsas_handle_event_sync() of interrupt context
7649                  */
7650                 break;
7651         }
7652         case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
7653         {
7654                 pMpi2EventDataSasEnclDevStatusChange_t  encstatus;
7655                 uint8_t                                 rc;
7656                 char                                    string[80];
7657 
7658                 encstatus = (pMpi2EventDataSasEnclDevStatusChange_t)
7659                     eventreply->EventData;
7660 
7661                 rc = ddi_get8(mpt->m_acc_reply_frame_hdl,
7662                     &encstatus->ReasonCode);
7663                 switch (rc) {
7664                 case MPI2_EVENT_SAS_ENCL_RC_ADDED:
7665                         (void) sprintf(string, "added");
7666                         break;
7667                 case MPI2_EVENT_SAS_ENCL_RC_NOT_RESPONDING:
7668                         (void) sprintf(string, ", not responding");
7669                         break;
7670                 default:
7671                 break;
7672                 }
7673                 NDBG20(("mptsas%d ENCLOSURE STATUS CHANGE for enclosure "
7674                     "%x%s\n", mpt->m_instance,
7675                     ddi_get16(mpt->m_acc_reply_frame_hdl,
7676                     &encstatus->EnclosureHandle), string));
7677                 break;
7678         }
7679 
7680         /*
7681          * MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE is handled by
7682          * mptsas_handle_event_sync,in here just send ack message.
7683          */
7684         case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
7685         {
7686                 pMpi2EventDataSasDeviceStatusChange_t   statuschange;
7687                 uint8_t                                 rc;
7688                 uint16_t                                devhdl;
7689                 uint64_t                                wwn = 0;
7690                 uint32_t                                wwn_lo, wwn_hi;
7691 
7692                 statuschange = (pMpi2EventDataSasDeviceStatusChange_t)
7693                     eventreply->EventData;
7694                 rc = ddi_get8(mpt->m_acc_reply_frame_hdl,
7695                     &statuschange->ReasonCode);
7696                 wwn_lo = ddi_get32(mpt->m_acc_reply_frame_hdl,
7697                     (uint32_t *)(void *)&statuschange->SASAddress);
7698                 wwn_hi = ddi_get32(mpt->m_acc_reply_frame_hdl,
7699                     (uint32_t *)(void *)&statuschange->SASAddress + 1);
7700                 wwn = ((uint64_t)wwn_hi << 32) | wwn_lo;
7701                 devhdl =  ddi_get16(mpt->m_acc_reply_frame_hdl,
7702                     &statuschange->DevHandle);
7703 
7704                 NDBG13(("MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE wwn is %"PRIx64,
7705                     wwn));
7706 
7707                 switch (rc) {
7708                 case MPI2_EVENT_SAS_DEV_STAT_RC_SMART_DATA:
7709                         NDBG20(("SMART data received, ASC/ASCQ = %02x/%02x",
7710                             ddi_get8(mpt->m_acc_reply_frame_hdl,
7711                             &statuschange->ASC),
7712                             ddi_get8(mpt->m_acc_reply_frame_hdl,
7713                             &statuschange->ASCQ)));
7714                         break;
7715 
7716                 case MPI2_EVENT_SAS_DEV_STAT_RC_UNSUPPORTED:
7717                         NDBG20(("Device not supported"));
7718                         break;
7719 
7720                 case MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET:
7721                         NDBG20(("IOC internally generated the Target Reset "
7722                             "for devhdl:%x", devhdl));
7723                         break;
7724 
7725                 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_INTERNAL_DEV_RESET:
7726                         NDBG20(("IOC's internally generated Target Reset "
7727                             "completed for devhdl:%x", devhdl));
7728                         break;
7729 
7730                 case MPI2_EVENT_SAS_DEV_STAT_RC_TASK_ABORT_INTERNAL:
7731                         NDBG20(("IOC internally generated Abort Task"));
7732                         break;
7733 
7734                 case MPI2_EVENT_SAS_DEV_STAT_RC_CMP_TASK_ABORT_INTERNAL:
7735                         NDBG20(("IOC's internally generated Abort Task "
7736                             "completed"));
7737                         break;
7738 
7739                 case MPI2_EVENT_SAS_DEV_STAT_RC_ABORT_TASK_SET_INTERNAL:
7740                         NDBG20(("IOC internally generated Abort Task Set"));
7741                         break;
7742 
7743                 case MPI2_EVENT_SAS_DEV_STAT_RC_CLEAR_TASK_SET_INTERNAL:
7744                         NDBG20(("IOC internally generated Clear Task Set"));
7745                         break;
7746 
7747                 case MPI2_EVENT_SAS_DEV_STAT_RC_QUERY_TASK_INTERNAL:
7748                         NDBG20(("IOC internally generated Query Task"));
7749                         break;
7750 
7751                 case MPI2_EVENT_SAS_DEV_STAT_RC_ASYNC_NOTIFICATION:
7752                         NDBG20(("Device sent an Asynchronous Notification"));
7753                         break;
7754 
7755                 default:
7756                         break;
7757                 }
7758                 break;
7759         }
7760         case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
7761         {
7762                 /*
7763                  * IR TOPOLOGY CHANGE LIST Event has already been handled
7764                  * in mpt_handle_event_sync() of interrupt context
7765                  */
7766                 break;
7767         }
7768         case MPI2_EVENT_IR_OPERATION_STATUS:
7769         {
7770                 Mpi2EventDataIrOperationStatus_t        *irOpStatus;
7771                 char                                    reason_str[80];
7772                 uint8_t                                 rc, percent;
7773                 uint16_t                                handle;
7774 
7775                 irOpStatus = (pMpi2EventDataIrOperationStatus_t)
7776                     eventreply->EventData;
7777                 rc = ddi_get8(mpt->m_acc_reply_frame_hdl,
7778                     &irOpStatus->RAIDOperation);
7779                 percent = ddi_get8(mpt->m_acc_reply_frame_hdl,
7780                     &irOpStatus->PercentComplete);
7781                 handle = ddi_get16(mpt->m_acc_reply_frame_hdl,
7782                     &irOpStatus->VolDevHandle);
7783 
7784                 switch (rc) {
7785                         case MPI2_EVENT_IR_RAIDOP_RESYNC:
7786                                 (void) sprintf(reason_str, "resync");
7787                                 break;
7788                         case MPI2_EVENT_IR_RAIDOP_ONLINE_CAP_EXPANSION:
7789                                 (void) sprintf(reason_str, "online capacity "
7790                                     "expansion");
7791                                 break;
7792                         case MPI2_EVENT_IR_RAIDOP_CONSISTENCY_CHECK:
7793                                 (void) sprintf(reason_str, "consistency check");
7794                                 break;
7795                         default:
7796                                 (void) sprintf(reason_str, "unknown reason %x",
7797                                     rc);
7798                 }
7799 
7800                 NDBG20(("mptsas%d raid operational status: (%s)"
7801                     "\thandle(0x%04x), percent complete(%d)\n",
7802                     mpt->m_instance, reason_str, handle, percent));
7803                 break;
7804         }
7805         case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
7806         {
7807                 pMpi2EventDataSasBroadcastPrimitive_t   sas_broadcast;
7808                 uint8_t                                 phy_num;
7809                 uint8_t                                 primitive;
7810 
7811                 sas_broadcast = (pMpi2EventDataSasBroadcastPrimitive_t)
7812                     eventreply->EventData;
7813 
7814                 phy_num = ddi_get8(mpt->m_acc_reply_frame_hdl,
7815                     &sas_broadcast->PhyNum);
7816                 primitive = ddi_get8(mpt->m_acc_reply_frame_hdl,
7817                     &sas_broadcast->Primitive);
7818 
7819                 switch (primitive) {
7820                 case MPI2_EVENT_PRIMITIVE_CHANGE:
7821                         mptsas_smhba_log_sysevent(mpt,
7822                             ESC_SAS_HBA_PORT_BROADCAST,
7823                             SAS_PORT_BROADCAST_CHANGE,
7824                             &mpt->m_phy_info[phy_num].smhba_info);
7825                         break;
7826                 case MPI2_EVENT_PRIMITIVE_SES:
7827                         mptsas_smhba_log_sysevent(mpt,
7828                             ESC_SAS_HBA_PORT_BROADCAST,
7829                             SAS_PORT_BROADCAST_SES,
7830                             &mpt->m_phy_info[phy_num].smhba_info);
7831                         break;
7832                 case MPI2_EVENT_PRIMITIVE_EXPANDER:
7833                         mptsas_smhba_log_sysevent(mpt,
7834                             ESC_SAS_HBA_PORT_BROADCAST,
7835                             SAS_PORT_BROADCAST_D01_4,
7836                             &mpt->m_phy_info[phy_num].smhba_info);
7837                         break;
7838                 case MPI2_EVENT_PRIMITIVE_ASYNCHRONOUS_EVENT:
7839                         mptsas_smhba_log_sysevent(mpt,
7840                             ESC_SAS_HBA_PORT_BROADCAST,
7841                             SAS_PORT_BROADCAST_D04_7,
7842                             &mpt->m_phy_info[phy_num].smhba_info);
7843                         break;
7844                 case MPI2_EVENT_PRIMITIVE_RESERVED3:
7845                         mptsas_smhba_log_sysevent(mpt,
7846                             ESC_SAS_HBA_PORT_BROADCAST,
7847                             SAS_PORT_BROADCAST_D16_7,
7848                             &mpt->m_phy_info[phy_num].smhba_info);
7849                         break;
7850                 case MPI2_EVENT_PRIMITIVE_RESERVED4:
7851                         mptsas_smhba_log_sysevent(mpt,
7852                             ESC_SAS_HBA_PORT_BROADCAST,
7853                             SAS_PORT_BROADCAST_D29_7,
7854                             &mpt->m_phy_info[phy_num].smhba_info);
7855                         break;
7856                 case MPI2_EVENT_PRIMITIVE_CHANGE0_RESERVED:
7857                         mptsas_smhba_log_sysevent(mpt,
7858                             ESC_SAS_HBA_PORT_BROADCAST,
7859                             SAS_PORT_BROADCAST_D24_0,
7860                             &mpt->m_phy_info[phy_num].smhba_info);
7861                         break;
7862                 case MPI2_EVENT_PRIMITIVE_CHANGE1_RESERVED:
7863                         mptsas_smhba_log_sysevent(mpt,
7864                             ESC_SAS_HBA_PORT_BROADCAST,
7865                             SAS_PORT_BROADCAST_D27_4,
7866                             &mpt->m_phy_info[phy_num].smhba_info);
7867                         break;
7868                 default:
7869                         NDBG16(("mptsas%d: unknown BROADCAST PRIMITIVE"
7870                             " %x received",
7871                             mpt->m_instance, primitive));
7872                         break;
7873                 }
7874                 NDBG16(("mptsas%d sas broadcast primitive: "
7875                     "\tprimitive(0x%04x), phy(%d) complete\n",
7876                     mpt->m_instance, primitive, phy_num));
7877                 break;
7878         }
7879         case MPI2_EVENT_IR_VOLUME:
7880         {
7881                 Mpi2EventDataIrVolume_t         *irVolume;
7882                 uint16_t                        devhandle;
7883                 uint32_t                        state;
7884                 int                             config, vol;
7885                 uint8_t                         found = FALSE;
7886 
7887                 irVolume = (pMpi2EventDataIrVolume_t)eventreply->EventData;
7888                 state = ddi_get32(mpt->m_acc_reply_frame_hdl,
7889                     &irVolume->NewValue);
7890                 devhandle = ddi_get16(mpt->m_acc_reply_frame_hdl,
7891                     &irVolume->VolDevHandle);
7892 
7893                 NDBG20(("EVENT_IR_VOLUME event is received"));
7894 
7895                 /*
7896                  * Get latest RAID info and then find the DevHandle for this
7897                  * event in the configuration.  If the DevHandle is not found
7898                  * just exit the event.
7899                  */
7900                 (void) mptsas_get_raid_info(mpt);
7901                 for (config = 0; (config < mpt->m_num_raid_configs) &&
7902                     (!found); config++) {
7903                         for (vol = 0; vol < MPTSAS_MAX_RAIDVOLS; vol++) {
7904                                 if (mpt->m_raidconfig[config].m_raidvol[vol].
7905                                     m_raidhandle == devhandle) {
7906                                         found = TRUE;
7907                                         break;
7908                                 }
7909                         }
7910                 }
7911                 if (!found) {
7912                         break;
7913                 }
7914 
7915                 switch (irVolume->ReasonCode) {
7916                 case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
7917                 {
7918                         uint32_t i;
7919                         mpt->m_raidconfig[config].m_raidvol[vol].m_settings =
7920                             state;
7921 
7922                         i = state & MPI2_RAIDVOL0_SETTING_MASK_WRITE_CACHING;
7923                         mptsas_log(mpt, CE_NOTE, " Volume %d settings changed"
7924                             ", auto-config of hot-swap drives is %s"
7925                             ", write caching is %s"
7926                             ", hot-spare pool mask is %02x\n",
7927                             vol, state &
7928                             MPI2_RAIDVOL0_SETTING_AUTO_CONFIG_HSWAP_DISABLE
7929                             ? "disabled" : "enabled",
7930                             i == MPI2_RAIDVOL0_SETTING_UNCHANGED
7931                             ? "controlled by member disks" :
7932                             i == MPI2_RAIDVOL0_SETTING_DISABLE_WRITE_CACHING
7933                             ? "disabled" :
7934                             i == MPI2_RAIDVOL0_SETTING_ENABLE_WRITE_CACHING
7935                             ? "enabled" :
7936                             "incorrectly set",
7937                             (state >> 16) & 0xff);
7938                                 break;
7939                 }
7940                 case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
7941                 {
7942                         mpt->m_raidconfig[config].m_raidvol[vol].m_state =
7943                             (uint8_t)state;
7944 
7945                         mptsas_log(mpt, CE_NOTE,
7946                             "Volume %d is now %s\n", vol,
7947                             state == MPI2_RAID_VOL_STATE_OPTIMAL
7948                             ? "optimal" :
7949                             state == MPI2_RAID_VOL_STATE_DEGRADED
7950                             ? "degraded" :
7951                             state == MPI2_RAID_VOL_STATE_ONLINE
7952                             ? "online" :
7953                             state == MPI2_RAID_VOL_STATE_INITIALIZING
7954                             ? "initializing" :
7955                             state == MPI2_RAID_VOL_STATE_FAILED
7956                             ? "failed" :
7957                             state == MPI2_RAID_VOL_STATE_MISSING
7958                             ? "missing" :
7959                             "state unknown");
7960                         break;
7961                 }
7962                 case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
7963                 {
7964                         mpt->m_raidconfig[config].m_raidvol[vol].
7965                             m_statusflags = state;
7966 
7967                         mptsas_log(mpt, CE_NOTE,
7968                             " Volume %d is now %s%s%s%s%s%s%s%s%s\n",
7969                             vol,
7970                             state & MPI2_RAIDVOL0_STATUS_FLAG_ENABLED
7971                             ? ", enabled" : ", disabled",
7972                             state & MPI2_RAIDVOL0_STATUS_FLAG_QUIESCED
7973                             ? ", quiesced" : "",
7974                             state & MPI2_RAIDVOL0_STATUS_FLAG_VOLUME_INACTIVE
7975                             ? ", inactive" : ", active",
7976                             state &
7977                             MPI2_RAIDVOL0_STATUS_FLAG_BAD_BLOCK_TABLE_FULL
7978                             ? ", bad block table is full" : "",
7979                             state &
7980                             MPI2_RAIDVOL0_STATUS_FLAG_RESYNC_IN_PROGRESS
7981                             ? ", resync in progress" : "",
7982                             state & MPI2_RAIDVOL0_STATUS_FLAG_BACKGROUND_INIT
7983                             ? ", background initialization in progress" : "",
7984                             state &
7985                             MPI2_RAIDVOL0_STATUS_FLAG_CAPACITY_EXPANSION
7986                             ? ", capacity expansion in progress" : "",
7987                             state &
7988                             MPI2_RAIDVOL0_STATUS_FLAG_CONSISTENCY_CHECK
7989                             ? ", consistency check in progress" : "",
7990                             state & MPI2_RAIDVOL0_STATUS_FLAG_DATA_SCRUB
7991                             ? ", data scrub in progress" : "");
7992                         break;
7993                 }
7994                 default:
7995                         break;
7996                 }
7997                 break;
7998         }
7999         case MPI2_EVENT_IR_PHYSICAL_DISK:
8000         {
8001                 Mpi2EventDataIrPhysicalDisk_t   *irPhysDisk;
8002                 uint16_t                        devhandle, enchandle, slot;
8003                 uint32_t                        status, state;
8004                 uint8_t                         physdisknum, reason;
8005 
8006                 irPhysDisk = (Mpi2EventDataIrPhysicalDisk_t *)
8007                     eventreply->EventData;
8008                 physdisknum = ddi_get8(mpt->m_acc_reply_frame_hdl,
8009                     &irPhysDisk->PhysDiskNum);
8010                 devhandle = ddi_get16(mpt->m_acc_reply_frame_hdl,
8011                     &irPhysDisk->PhysDiskDevHandle);
8012                 enchandle = ddi_get16(mpt->m_acc_reply_frame_hdl,
8013                     &irPhysDisk->EnclosureHandle);
8014                 slot = ddi_get16(mpt->m_acc_reply_frame_hdl,
8015                     &irPhysDisk->Slot);
8016                 state = ddi_get32(mpt->m_acc_reply_frame_hdl,
8017                     &irPhysDisk->NewValue);
8018                 reason = ddi_get8(mpt->m_acc_reply_frame_hdl,
8019                     &irPhysDisk->ReasonCode);
8020 
8021                 NDBG20(("EVENT_IR_PHYSICAL_DISK event is received"));
8022 
8023                 switch (reason) {
8024                 case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
8025                         mptsas_log(mpt, CE_NOTE,
8026                             " PhysDiskNum %d with DevHandle 0x%x in slot %d "
8027                             "for enclosure with handle 0x%x is now in hot "
8028                             "spare pool %d",
8029                             physdisknum, devhandle, slot, enchandle,
8030                             (state >> 16) & 0xff);
8031                         break;
8032 
8033                 case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
8034                         status = state;
8035                         mptsas_log(mpt, CE_NOTE,
8036                             " PhysDiskNum %d with DevHandle 0x%x in slot %d "
8037                             "for enclosure with handle 0x%x is now "
8038                             "%s%s%s%s%s\n", physdisknum, devhandle, slot,
8039                             enchandle,
8040                             status & MPI2_PHYSDISK0_STATUS_FLAG_INACTIVE_VOLUME
8041                             ? ", inactive" : ", active",
8042                             status & MPI2_PHYSDISK0_STATUS_FLAG_OUT_OF_SYNC
8043                             ? ", out of sync" : "",
8044                             status & MPI2_PHYSDISK0_STATUS_FLAG_QUIESCED
8045                             ? ", quiesced" : "",
8046                             status &
8047                             MPI2_PHYSDISK0_STATUS_FLAG_WRITE_CACHE_ENABLED
8048                             ? ", write cache enabled" : "",
8049                             status & MPI2_PHYSDISK0_STATUS_FLAG_OCE_TARGET
8050                             ? ", capacity expansion target" : "");
8051                         break;
8052 
8053                 case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
8054                         mptsas_log(mpt, CE_NOTE,
8055                             " PhysDiskNum %d with DevHandle 0x%x in slot %d "
8056                             "for enclosure with handle 0x%x is now %s\n",
8057                             physdisknum, devhandle, slot, enchandle,
8058                             state == MPI2_RAID_PD_STATE_OPTIMAL
8059                             ? "optimal" :
8060                             state == MPI2_RAID_PD_STATE_REBUILDING
8061                             ? "rebuilding" :
8062                             state == MPI2_RAID_PD_STATE_DEGRADED
8063                             ? "degraded" :
8064                             state == MPI2_RAID_PD_STATE_HOT_SPARE
8065                             ? "a hot spare" :
8066                             state == MPI2_RAID_PD_STATE_ONLINE
8067                             ? "online" :
8068                             state == MPI2_RAID_PD_STATE_OFFLINE
8069                             ? "offline" :
8070                             state == MPI2_RAID_PD_STATE_NOT_COMPATIBLE
8071                             ? "not compatible" :
8072                             state == MPI2_RAID_PD_STATE_NOT_CONFIGURED
8073                             ? "not configured" :
8074                             "state unknown");
8075                         break;
8076                 }
8077                 break;
8078         }
8079         default:
8080                 NDBG20(("mptsas%d: unknown event %x received",
8081                     mpt->m_instance, event));
8082                 break;
8083         }
8084 
8085         /*
8086          * Return the reply frame to the free queue.
8087          */
8088         ddi_put32(mpt->m_acc_free_queue_hdl,
8089             &((uint32_t *)(void *)mpt->m_free_queue)[mpt->m_free_index], rfm);
8090         (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
8091             DDI_DMA_SYNC_FORDEV);
8092         if (++mpt->m_free_index == mpt->m_free_queue_depth) {
8093                 mpt->m_free_index = 0;
8094         }
8095         ddi_put32(mpt->m_datap, &mpt->m_reg->ReplyFreeHostIndex,
8096             mpt->m_free_index);
8097         mutex_exit(&mpt->m_mutex);
8098 }
8099 
8100 /*
8101  * invoked from timeout() to restart qfull cmds with throttle == 0
8102  */
8103 static void
8104 mptsas_restart_cmd(void *arg)
8105 {
8106         mptsas_t        *mpt = arg;
8107         mptsas_target_t *ptgt = NULL;
8108 
8109         mutex_enter(&mpt->m_mutex);
8110 
8111         mpt->m_restart_cmd_timeid = 0;
8112 
8113         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
8114             ptgt = refhash_next(mpt->m_targets, ptgt)) {
8115                 if (ptgt->m_reset_delay == 0) {
8116                         if (ptgt->m_t_throttle == QFULL_THROTTLE) {
8117                                 mptsas_set_throttle(mpt, ptgt,
8118                                     MAX_THROTTLE);
8119                         }
8120                 }
8121         }
8122         mptsas_restart_hba(mpt);
8123         mutex_exit(&mpt->m_mutex);
8124 }
8125 
8126 void
8127 mptsas_remove_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd)
8128 {
8129         int             slot;
8130         mptsas_slots_t  *slots = mpt->m_active;
8131         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
8132 
8133         ASSERT(cmd != NULL);
8134         ASSERT(cmd->cmd_queued == FALSE);
8135 
8136         /*
8137          * Task Management cmds are removed in their own routines.  Also,
8138          * we don't want to modify timeout based on TM cmds.
8139          */
8140         if (cmd->cmd_flags & CFLAG_TM_CMD) {
8141                 return;
8142         }
8143 
8144         slot = cmd->cmd_slot;
8145 
8146         /*
8147          * remove the cmd.
8148          */
8149         if (cmd == slots->m_slot[slot]) {
8150                 NDBG31(("mptsas_remove_cmd: removing cmd=0x%p, flags "
8151                     "0x%x", (void *)cmd, cmd->cmd_flags));
8152                 slots->m_slot[slot] = NULL;
8153                 mpt->m_ncmds--;
8154 
8155                 /*
8156                  * only decrement per target ncmds if command
8157                  * has a target associated with it.
8158                  */
8159                 if ((cmd->cmd_flags & CFLAG_CMDIOC) == 0) {
8160                         ptgt->m_t_ncmds--;
8161                         /*
8162                          * reset throttle if we just ran an untagged command
8163                          * to a tagged target
8164                          */
8165                         if ((ptgt->m_t_ncmds == 0) &&
8166                             ((cmd->cmd_pkt_flags & FLAG_TAGMASK) == 0)) {
8167                                 mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
8168                         }
8169 
8170                         /*
8171                          * Remove this command from the active queue.
8172                          */
8173                         if (cmd->cmd_active_expiration != 0) {
8174                                 TAILQ_REMOVE(&ptgt->m_active_cmdq, cmd,
8175                                     cmd_active_link);
8176                                 cmd->cmd_active_expiration = 0;
8177                         }
8178                 }
8179         }
8180 
8181         /*
8182          * This is all we need to do for ioc commands.
8183          */
8184         if (cmd->cmd_flags & CFLAG_CMDIOC) {
8185                 mptsas_return_to_pool(mpt, cmd);
8186                 return;
8187         }
8188 
8189         ASSERT(cmd != slots->m_slot[cmd->cmd_slot]);
8190 }
8191 
8192 /*
8193  * accept all cmds on the tx_waitq if any and then
8194  * start a fresh request from the top of the device queue.
8195  *
8196  * since there are always cmds queued on the tx_waitq, and rare cmds on
8197  * the instance waitq, so this function should not be invoked in the ISR,
8198  * the mptsas_restart_waitq() is invoked in the ISR instead. otherwise, the
8199  * burden belongs to the IO dispatch CPUs is moved the interrupt CPU.
8200  */
8201 static void
8202 mptsas_restart_hba(mptsas_t *mpt)
8203 {
8204         ASSERT(mutex_owned(&mpt->m_mutex));
8205 
8206         mutex_enter(&mpt->m_tx_waitq_mutex);
8207         if (mpt->m_tx_waitq) {
8208                 mptsas_accept_tx_waitq(mpt);
8209         }
8210         mutex_exit(&mpt->m_tx_waitq_mutex);
8211         mptsas_restart_waitq(mpt);
8212 }
8213 
8214 /*
8215  * start a fresh request from the top of the device queue
8216  */
8217 static void
8218 mptsas_restart_waitq(mptsas_t *mpt)
8219 {
8220         mptsas_cmd_t    *cmd, *next_cmd;
8221         mptsas_target_t *ptgt = NULL;
8222 
8223         NDBG1(("mptsas_restart_waitq: mpt=0x%p", (void *)mpt));
8224 
8225         ASSERT(mutex_owned(&mpt->m_mutex));
8226 
8227         /*
8228          * If there is a reset delay, don't start any cmds.  Otherwise, start
8229          * as many cmds as possible.
8230          * Since SMID 0 is reserved and the TM slot is reserved, the actual max
8231          * commands is m_max_requests - 2.
8232          */
8233         cmd = mpt->m_waitq;
8234 
8235         while (cmd != NULL) {
8236                 next_cmd = cmd->cmd_linkp;
8237                 if (cmd->cmd_flags & CFLAG_PASSTHRU) {
8238                         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
8239                                 /*
8240                                  * passthru command get slot need
8241                                  * set CFLAG_PREPARED.
8242                                  */
8243                                 cmd->cmd_flags |= CFLAG_PREPARED;
8244                                 mptsas_waitq_delete(mpt, cmd);
8245                                 mptsas_start_passthru(mpt, cmd);
8246                         }
8247                         cmd = next_cmd;
8248                         continue;
8249                 }
8250                 if (cmd->cmd_flags & CFLAG_CONFIG) {
8251                         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
8252                                 /*
8253                                  * Send the config page request and delete it
8254                                  * from the waitq.
8255                                  */
8256                                 cmd->cmd_flags |= CFLAG_PREPARED;
8257                                 mptsas_waitq_delete(mpt, cmd);
8258                                 mptsas_start_config_page_access(mpt, cmd);
8259                         }
8260                         cmd = next_cmd;
8261                         continue;
8262                 }
8263                 if (cmd->cmd_flags & CFLAG_FW_DIAG) {
8264                         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
8265                                 /*
8266                                  * Send the FW Diag request and delete if from
8267                                  * the waitq.
8268                                  */
8269                                 cmd->cmd_flags |= CFLAG_PREPARED;
8270                                 mptsas_waitq_delete(mpt, cmd);
8271                                 mptsas_start_diag(mpt, cmd);
8272                         }
8273                         cmd = next_cmd;
8274                         continue;
8275                 }
8276 
8277                 ptgt = cmd->cmd_tgt_addr;
8278                 if (ptgt && (ptgt->m_t_throttle == DRAIN_THROTTLE) &&
8279                     (ptgt->m_t_ncmds == 0)) {
8280                         mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
8281                 }
8282                 if ((mpt->m_ncmds <= (mpt->m_max_requests - 2)) &&
8283                     (ptgt && (ptgt->m_reset_delay == 0)) &&
8284                     (ptgt && (ptgt->m_t_ncmds <
8285                     ptgt->m_t_throttle))) {
8286                         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
8287                                 mptsas_waitq_delete(mpt, cmd);
8288                                 (void) mptsas_start_cmd(mpt, cmd);
8289                         }
8290                 }
8291                 cmd = next_cmd;
8292         }
8293 }
8294 /*
8295  * Cmds are queued if tran_start() doesn't get the m_mutexlock(no wait).
8296  * Accept all those queued cmds before new cmd is accept so that the
8297  * cmds are sent in order.
8298  */
8299 static void
8300 mptsas_accept_tx_waitq(mptsas_t *mpt)
8301 {
8302         mptsas_cmd_t *cmd;
8303 
8304         ASSERT(mutex_owned(&mpt->m_mutex));
8305         ASSERT(mutex_owned(&mpt->m_tx_waitq_mutex));
8306 
8307         /*
8308          * A Bus Reset could occur at any time and flush the tx_waitq,
8309          * so we cannot count on the tx_waitq to contain even one cmd.
8310          * And when the m_tx_waitq_mutex is released and run
8311          * mptsas_accept_pkt(), the tx_waitq may be flushed.
8312          */
8313         cmd = mpt->m_tx_waitq;
8314         for (;;) {
8315                 if ((cmd = mpt->m_tx_waitq) == NULL) {
8316                         mpt->m_tx_draining = 0;
8317                         break;
8318                 }
8319                 if ((mpt->m_tx_waitq = cmd->cmd_linkp) == NULL) {
8320                         mpt->m_tx_waitqtail = &mpt->m_tx_waitq;
8321                 }
8322                 cmd->cmd_linkp = NULL;
8323                 mutex_exit(&mpt->m_tx_waitq_mutex);
8324                 if (mptsas_accept_pkt(mpt, cmd) != TRAN_ACCEPT)
8325                         cmn_err(CE_WARN, "mpt: mptsas_accept_tx_waitq: failed "
8326                             "to accept cmd on queue\n");
8327                 mutex_enter(&mpt->m_tx_waitq_mutex);
8328         }
8329 }
8330 
8331 
8332 /*
8333  * mpt tag type lookup
8334  */
8335 static char mptsas_tag_lookup[] =
8336         {0, MSG_HEAD_QTAG, MSG_ORDERED_QTAG, 0, MSG_SIMPLE_QTAG};
8337 
8338 static int
8339 mptsas_start_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd)
8340 {
8341         struct scsi_pkt         *pkt = CMD2PKT(cmd);
8342         uint32_t                control = 0;
8343         caddr_t                 mem, arsbuf;
8344         pMpi2SCSIIORequest_t    io_request;
8345         ddi_dma_handle_t        dma_hdl = mpt->m_dma_req_frame_hdl;
8346         ddi_acc_handle_t        acc_hdl = mpt->m_acc_req_frame_hdl;
8347         mptsas_target_t         *ptgt = cmd->cmd_tgt_addr;
8348         uint16_t                SMID, io_flags = 0;
8349         uint8_t                 ars_size;
8350         uint64_t                request_desc;
8351         uint32_t                ars_dmaaddrlow;
8352         mptsas_cmd_t            *c;
8353 
8354         NDBG1(("mptsas_start_cmd: cmd=0x%p, flags 0x%x", (void *)cmd,
8355             cmd->cmd_flags));
8356 
8357         /*
8358          * Set SMID and increment index.  Rollover to 1 instead of 0 if index
8359          * is at the max.  0 is an invalid SMID, so we call the first index 1.
8360          */
8361         SMID = cmd->cmd_slot;
8362 
8363         /*
8364          * It is possible for back to back device reset to
8365          * happen before the reset delay has expired.  That's
8366          * ok, just let the device reset go out on the bus.
8367          */
8368         if ((cmd->cmd_pkt_flags & FLAG_NOINTR) == 0) {
8369                 ASSERT(ptgt->m_reset_delay == 0);
8370         }
8371 
8372         /*
8373          * if a non-tagged cmd is submitted to an active tagged target
8374          * then drain before submitting this cmd; SCSI-2 allows RQSENSE
8375          * to be untagged
8376          */
8377         if (((cmd->cmd_pkt_flags & FLAG_TAGMASK) == 0) &&
8378             (ptgt->m_t_ncmds > 1) &&
8379             ((cmd->cmd_flags & CFLAG_TM_CMD) == 0) &&
8380             (*(cmd->cmd_pkt->pkt_cdbp) != SCMD_REQUEST_SENSE)) {
8381                 if ((cmd->cmd_pkt_flags & FLAG_NOINTR) == 0) {
8382                         NDBG23(("target=%d, untagged cmd, start draining\n",
8383                             ptgt->m_devhdl));
8384 
8385                         if (ptgt->m_reset_delay == 0) {
8386                                 mptsas_set_throttle(mpt, ptgt, DRAIN_THROTTLE);
8387                         }
8388 
8389                         mptsas_remove_cmd(mpt, cmd);
8390                         cmd->cmd_pkt_flags |= FLAG_HEAD;
8391                         mptsas_waitq_add(mpt, cmd);
8392                 }
8393                 return (DDI_FAILURE);
8394         }
8395 
8396         /*
8397          * Set correct tag bits.
8398          */
8399         if (cmd->cmd_pkt_flags & FLAG_TAGMASK) {
8400                 switch (mptsas_tag_lookup[((cmd->cmd_pkt_flags &
8401                     FLAG_TAGMASK) >> 12)]) {
8402                 case MSG_SIMPLE_QTAG:
8403                         control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
8404                         break;
8405                 case MSG_HEAD_QTAG:
8406                         control |= MPI2_SCSIIO_CONTROL_HEADOFQ;
8407                         break;
8408                 case MSG_ORDERED_QTAG:
8409                         control |= MPI2_SCSIIO_CONTROL_ORDEREDQ;
8410                         break;
8411                 default:
8412                         mptsas_log(mpt, CE_WARN, "mpt: Invalid tag type\n");
8413                         break;
8414                 }
8415         } else {
8416                 if (*(cmd->cmd_pkt->pkt_cdbp) != SCMD_REQUEST_SENSE) {
8417                                 ptgt->m_t_throttle = 1;
8418                 }
8419                 control |= MPI2_SCSIIO_CONTROL_SIMPLEQ;
8420         }
8421 
8422         if (cmd->cmd_pkt_flags & FLAG_TLR) {
8423                 control |= MPI2_SCSIIO_CONTROL_TLR_ON;
8424         }
8425 
8426         mem = mpt->m_req_frame + (mpt->m_req_frame_size * SMID);
8427         io_request = (pMpi2SCSIIORequest_t)mem;
8428         if (cmd->cmd_extrqslen != 0) {
8429                 /*
8430                  * Mapping of the buffer was done in mptsas_pkt_alloc_extern().
8431                  * Calculate the DMA address with the same offset.
8432                  */
8433                 arsbuf = cmd->cmd_arq_buf;
8434                 ars_size = cmd->cmd_extrqslen;
8435                 ars_dmaaddrlow = (mpt->m_req_sense_dma_addr +
8436                     ((uintptr_t)arsbuf - (uintptr_t)mpt->m_req_sense)) &
8437                     0xffffffffu;
8438         } else {
8439                 arsbuf = mpt->m_req_sense + (mpt->m_req_sense_size * (SMID-1));
8440                 cmd->cmd_arq_buf = arsbuf;
8441                 ars_size = mpt->m_req_sense_size;
8442                 ars_dmaaddrlow = (mpt->m_req_sense_dma_addr +
8443                     (mpt->m_req_sense_size * (SMID-1))) &
8444                     0xffffffffu;
8445         }
8446         bzero(io_request, sizeof (Mpi2SCSIIORequest_t));
8447         bzero(arsbuf, ars_size);
8448 
8449         ddi_put8(acc_hdl, &io_request->SGLOffset0, offsetof
8450             (MPI2_SCSI_IO_REQUEST, SGL) / 4);
8451         mptsas_init_std_hdr(acc_hdl, io_request, ptgt->m_devhdl, Lun(cmd), 0,
8452             MPI2_FUNCTION_SCSI_IO_REQUEST);
8453 
8454         (void) ddi_rep_put8(acc_hdl, (uint8_t *)pkt->pkt_cdbp,
8455             io_request->CDB.CDB32, cmd->cmd_cdblen, DDI_DEV_AUTOINCR);
8456 
8457         io_flags = cmd->cmd_cdblen;
8458         if (mptsas_use_fastpath &&
8459             ptgt->m_io_flags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) {
8460                 io_flags |= MPI25_SCSIIO_IOFLAGS_FAST_PATH;
8461                 request_desc = MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
8462         } else {
8463                 request_desc = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
8464         }
8465         ddi_put16(acc_hdl, &io_request->IoFlags, io_flags);
8466         /*
8467          * setup the Scatter/Gather DMA list for this request
8468          */
8469         if (cmd->cmd_cookiec > 0) {
8470                 mptsas_sge_setup(mpt, cmd, &control, io_request, acc_hdl);
8471         } else {
8472                 ddi_put32(acc_hdl, &io_request->SGL.MpiSimple.FlagsLength,
8473                     ((uint32_t)MPI2_SGE_FLAGS_LAST_ELEMENT |
8474                     MPI2_SGE_FLAGS_END_OF_BUFFER |
8475                     MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
8476                     MPI2_SGE_FLAGS_END_OF_LIST) << MPI2_SGE_FLAGS_SHIFT);
8477         }
8478 
8479         /*
8480          * save ARQ information
8481          */
8482         ddi_put8(acc_hdl, &io_request->SenseBufferLength, ars_size);
8483         ddi_put32(acc_hdl, &io_request->SenseBufferLowAddress, ars_dmaaddrlow);
8484 
8485         ddi_put32(acc_hdl, &io_request->Control, control);
8486 
8487         NDBG31(("starting message=%d(0x%p), with cmd=0x%p",
8488             SMID, (void *)io_request, (void *)cmd));
8489 
8490         (void) ddi_dma_sync(dma_hdl, 0, 0, DDI_DMA_SYNC_FORDEV);
8491         (void) ddi_dma_sync(mpt->m_dma_req_sense_hdl, 0, 0,
8492             DDI_DMA_SYNC_FORDEV);
8493 
8494         /*
8495          * Build request descriptor and write it to the request desc post reg.
8496          */
8497         request_desc |= (SMID << 16);
8498         request_desc |= (uint64_t)ptgt->m_devhdl << 48;
8499         MPTSAS_START_CMD(mpt, request_desc);
8500 
8501         /*
8502          * Start timeout.
8503          */
8504         cmd->cmd_active_expiration =
8505             gethrtime() + (hrtime_t)pkt->pkt_time * NANOSEC;
8506 #ifdef MPTSAS_TEST
8507         /*
8508          * Force timeouts to happen immediately.
8509          */
8510         if (mptsas_test_timeouts)
8511                 cmd->cmd_active_expiration = gethrtime();
8512 #endif
8513         c = TAILQ_FIRST(&ptgt->m_active_cmdq);
8514         if (c == NULL ||
8515             c->cmd_active_expiration < cmd->cmd_active_expiration) {
8516                 /*
8517                  * Common case is that this is the last pending expiration
8518                  * (or queue is empty). Insert at head of the queue.
8519                  */
8520                 TAILQ_INSERT_HEAD(&ptgt->m_active_cmdq, cmd, cmd_active_link);
8521         } else {
8522                 /*
8523                  * Queue is not empty and first element expires later than
8524                  * this command. Search for element expiring sooner.
8525                  */
8526                 while ((c = TAILQ_NEXT(c, cmd_active_link)) != NULL) {
8527                         if (c->cmd_active_expiration <
8528                             cmd->cmd_active_expiration) {
8529                                 TAILQ_INSERT_BEFORE(c, cmd, cmd_active_link);
8530                                 break;
8531                         }
8532                 }
8533                 if (c == NULL) {
8534                         /*
8535                          * No element found expiring sooner, append to
8536                          * non-empty queue.
8537                          */
8538                         TAILQ_INSERT_TAIL(&ptgt->m_active_cmdq, cmd,
8539                             cmd_active_link);
8540                 }
8541         }
8542 
8543         if ((mptsas_check_dma_handle(dma_hdl) != DDI_SUCCESS) ||
8544             (mptsas_check_acc_handle(acc_hdl) != DDI_SUCCESS)) {
8545                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
8546                 return (DDI_FAILURE);
8547         }
8548         return (DDI_SUCCESS);
8549 }
8550 
8551 /*
8552  * Select a helper thread to handle current doneq
8553  */
8554 static void
8555 mptsas_deliver_doneq_thread(mptsas_t *mpt)
8556 {
8557         uint64_t                        t, i;
8558         uint32_t                        min = 0xffffffff;
8559         mptsas_doneq_thread_list_t      *item;
8560 
8561         for (i = 0; i < mpt->m_doneq_thread_n; i++) {
8562                 item = &mpt->m_doneq_thread_id[i];
8563                 /*
8564                  * If the completed command on help thread[i] less than
8565                  * doneq_thread_threshold, then pick the thread[i]. Otherwise
8566                  * pick a thread which has least completed command.
8567                  */
8568 
8569                 mutex_enter(&item->mutex);
8570                 if (item->len < mpt->m_doneq_thread_threshold) {
8571                         t = i;
8572                         mutex_exit(&item->mutex);
8573                         break;
8574                 }
8575                 if (item->len < min) {
8576                         min = item->len;
8577                         t = i;
8578                 }
8579                 mutex_exit(&item->mutex);
8580         }
8581         mutex_enter(&mpt->m_doneq_thread_id[t].mutex);
8582         mptsas_doneq_mv(mpt, t);
8583         cv_signal(&mpt->m_doneq_thread_id[t].cv);
8584         mutex_exit(&mpt->m_doneq_thread_id[t].mutex);
8585 }
8586 
8587 /*
8588  * move the current global doneq to the doneq of thead[t]
8589  */
8590 static void
8591 mptsas_doneq_mv(mptsas_t *mpt, uint64_t t)
8592 {
8593         mptsas_cmd_t                    *cmd;
8594         mptsas_doneq_thread_list_t      *item = &mpt->m_doneq_thread_id[t];
8595 
8596         ASSERT(mutex_owned(&item->mutex));
8597         while ((cmd = mpt->m_doneq) != NULL) {
8598                 if ((mpt->m_doneq = cmd->cmd_linkp) == NULL) {
8599                         mpt->m_donetail = &mpt->m_doneq;
8600                 }
8601                 cmd->cmd_linkp = NULL;
8602                 *item->donetail = cmd;
8603                 item->donetail = &cmd->cmd_linkp;
8604                 mpt->m_doneq_len--;
8605                 item->len++;
8606         }
8607 }
8608 
8609 void
8610 mptsas_fma_check(mptsas_t *mpt, mptsas_cmd_t *cmd)
8611 {
8612         struct scsi_pkt *pkt = CMD2PKT(cmd);
8613 
8614         /* Check all acc and dma handles */
8615         if ((mptsas_check_acc_handle(mpt->m_datap) !=
8616             DDI_SUCCESS) ||
8617             (mptsas_check_acc_handle(mpt->m_acc_req_frame_hdl) !=
8618             DDI_SUCCESS) ||
8619             (mptsas_check_acc_handle(mpt->m_acc_req_sense_hdl) !=
8620             DDI_SUCCESS) ||
8621             (mptsas_check_acc_handle(mpt->m_acc_reply_frame_hdl) !=
8622             DDI_SUCCESS) ||
8623             (mptsas_check_acc_handle(mpt->m_acc_free_queue_hdl) !=
8624             DDI_SUCCESS) ||
8625             (mptsas_check_acc_handle(mpt->m_acc_post_queue_hdl) !=
8626             DDI_SUCCESS) ||
8627             (mptsas_check_acc_handle(mpt->m_hshk_acc_hdl) !=
8628             DDI_SUCCESS) ||
8629             (mptsas_check_acc_handle(mpt->m_config_handle) !=
8630             DDI_SUCCESS)) {
8631                 ddi_fm_service_impact(mpt->m_dip,
8632                     DDI_SERVICE_UNAFFECTED);
8633                 ddi_fm_acc_err_clear(mpt->m_config_handle,
8634                     DDI_FME_VER0);
8635                 pkt->pkt_reason = CMD_TRAN_ERR;
8636                 pkt->pkt_statistics = 0;
8637         }
8638         if ((mptsas_check_dma_handle(mpt->m_dma_req_frame_hdl) !=
8639             DDI_SUCCESS) ||
8640             (mptsas_check_dma_handle(mpt->m_dma_req_sense_hdl) !=
8641             DDI_SUCCESS) ||
8642             (mptsas_check_dma_handle(mpt->m_dma_reply_frame_hdl) !=
8643             DDI_SUCCESS) ||
8644             (mptsas_check_dma_handle(mpt->m_dma_free_queue_hdl) !=
8645             DDI_SUCCESS) ||
8646             (mptsas_check_dma_handle(mpt->m_dma_post_queue_hdl) !=
8647             DDI_SUCCESS) ||
8648             (mptsas_check_dma_handle(mpt->m_hshk_dma_hdl) !=
8649             DDI_SUCCESS)) {
8650                 ddi_fm_service_impact(mpt->m_dip,
8651                     DDI_SERVICE_UNAFFECTED);
8652                 pkt->pkt_reason = CMD_TRAN_ERR;
8653                 pkt->pkt_statistics = 0;
8654         }
8655         if (cmd->cmd_dmahandle &&
8656             (mptsas_check_dma_handle(cmd->cmd_dmahandle) != DDI_SUCCESS)) {
8657                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
8658                 pkt->pkt_reason = CMD_TRAN_ERR;
8659                 pkt->pkt_statistics = 0;
8660         }
8661         if ((cmd->cmd_extra_frames &&
8662             ((mptsas_check_dma_handle(cmd->cmd_extra_frames->m_dma_hdl) !=
8663             DDI_SUCCESS) ||
8664             (mptsas_check_acc_handle(cmd->cmd_extra_frames->m_acc_hdl) !=
8665             DDI_SUCCESS)))) {
8666                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
8667                 pkt->pkt_reason = CMD_TRAN_ERR;
8668                 pkt->pkt_statistics = 0;
8669         }
8670 }
8671 
8672 /*
8673  * These routines manipulate the queue of commands that
8674  * are waiting for their completion routines to be called.
8675  * The queue is usually in FIFO order but on an MP system
8676  * it's possible for the completion routines to get out
8677  * of order. If that's a problem you need to add a global
8678  * mutex around the code that calls the completion routine
8679  * in the interrupt handler.
8680  */
8681 static void
8682 mptsas_doneq_add(mptsas_t *mpt, mptsas_cmd_t *cmd)
8683 {
8684         struct scsi_pkt *pkt = CMD2PKT(cmd);
8685 
8686         NDBG31(("mptsas_doneq_add: cmd=0x%p", (void *)cmd));
8687 
8688         ASSERT((cmd->cmd_flags & CFLAG_COMPLETED) == 0);
8689         cmd->cmd_linkp = NULL;
8690         cmd->cmd_flags |= CFLAG_FINISHED;
8691         cmd->cmd_flags &= ~CFLAG_IN_TRANSPORT;
8692 
8693         mptsas_fma_check(mpt, cmd);
8694 
8695         /*
8696          * only add scsi pkts that have completion routines to
8697          * the doneq.  no intr cmds do not have callbacks.
8698          */
8699         if (pkt && (pkt->pkt_comp)) {
8700                 *mpt->m_donetail = cmd;
8701                 mpt->m_donetail = &cmd->cmd_linkp;
8702                 mpt->m_doneq_len++;
8703         }
8704 }
8705 
8706 static mptsas_cmd_t *
8707 mptsas_doneq_thread_rm(mptsas_t *mpt, uint64_t t)
8708 {
8709         mptsas_cmd_t                    *cmd;
8710         mptsas_doneq_thread_list_t      *item = &mpt->m_doneq_thread_id[t];
8711 
8712         /* pop one off the done queue */
8713         if ((cmd = item->doneq) != NULL) {
8714                 /* if the queue is now empty fix the tail pointer */
8715                 NDBG31(("mptsas_doneq_thread_rm: cmd=0x%p", (void *)cmd));
8716                 if ((item->doneq = cmd->cmd_linkp) == NULL) {
8717                         item->donetail = &item->doneq;
8718                 }
8719                 cmd->cmd_linkp = NULL;
8720                 item->len--;
8721         }
8722         return (cmd);
8723 }
8724 
8725 static void
8726 mptsas_doneq_empty(mptsas_t *mpt)
8727 {
8728         if (mpt->m_doneq && !mpt->m_in_callback) {
8729                 mptsas_cmd_t    *cmd, *next;
8730                 struct scsi_pkt *pkt;
8731 
8732                 mpt->m_in_callback = 1;
8733                 cmd = mpt->m_doneq;
8734                 mpt->m_doneq = NULL;
8735                 mpt->m_donetail = &mpt->m_doneq;
8736                 mpt->m_doneq_len = 0;
8737 
8738                 mutex_exit(&mpt->m_mutex);
8739                 /*
8740                  * run the completion routines of all the
8741                  * completed commands
8742                  */
8743                 while (cmd != NULL) {
8744                         next = cmd->cmd_linkp;
8745                         cmd->cmd_linkp = NULL;
8746                         /* run this command's completion routine */
8747                         cmd->cmd_flags |= CFLAG_COMPLETED;
8748                         pkt = CMD2PKT(cmd);
8749                         mptsas_pkt_comp(pkt, cmd);
8750                         cmd = next;
8751                 }
8752                 mutex_enter(&mpt->m_mutex);
8753                 mpt->m_in_callback = 0;
8754         }
8755 }
8756 
8757 /*
8758  * These routines manipulate the target's queue of pending requests
8759  */
8760 void
8761 mptsas_waitq_add(mptsas_t *mpt, mptsas_cmd_t *cmd)
8762 {
8763         NDBG7(("mptsas_waitq_add: cmd=0x%p", (void *)cmd));
8764         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
8765         cmd->cmd_queued = TRUE;
8766         if (ptgt)
8767                 ptgt->m_t_nwait++;
8768         if (cmd->cmd_pkt_flags & FLAG_HEAD) {
8769                 if ((cmd->cmd_linkp = mpt->m_waitq) == NULL) {
8770                         mpt->m_waitqtail = &cmd->cmd_linkp;
8771                 }
8772                 mpt->m_waitq = cmd;
8773         } else {
8774                 cmd->cmd_linkp = NULL;
8775                 *(mpt->m_waitqtail) = cmd;
8776                 mpt->m_waitqtail = &cmd->cmd_linkp;
8777         }
8778 }
8779 
8780 static mptsas_cmd_t *
8781 mptsas_waitq_rm(mptsas_t *mpt)
8782 {
8783         mptsas_cmd_t    *cmd;
8784         mptsas_target_t *ptgt;
8785         NDBG7(("mptsas_waitq_rm"));
8786 
8787         MPTSAS_WAITQ_RM(mpt, cmd);
8788 
8789         NDBG7(("mptsas_waitq_rm: cmd=0x%p", (void *)cmd));
8790         if (cmd) {
8791                 ptgt = cmd->cmd_tgt_addr;
8792                 if (ptgt) {
8793                         ptgt->m_t_nwait--;
8794                         ASSERT(ptgt->m_t_nwait >= 0);
8795                 }
8796         }
8797         return (cmd);
8798 }
8799 
8800 /*
8801  * remove specified cmd from the middle of the wait queue.
8802  */
8803 static void
8804 mptsas_waitq_delete(mptsas_t *mpt, mptsas_cmd_t *cmd)
8805 {
8806         mptsas_cmd_t    *prevp = mpt->m_waitq;
8807         mptsas_target_t *ptgt = cmd->cmd_tgt_addr;
8808 
8809         NDBG7(("mptsas_waitq_delete: mpt=0x%p cmd=0x%p",
8810             (void *)mpt, (void *)cmd));
8811         if (ptgt) {
8812                 ptgt->m_t_nwait--;
8813                 ASSERT(ptgt->m_t_nwait >= 0);
8814         }
8815 
8816         if (prevp == cmd) {
8817                 if ((mpt->m_waitq = cmd->cmd_linkp) == NULL)
8818                         mpt->m_waitqtail = &mpt->m_waitq;
8819 
8820                 cmd->cmd_linkp = NULL;
8821                 cmd->cmd_queued = FALSE;
8822                 NDBG7(("mptsas_waitq_delete: mpt=0x%p cmd=0x%p",
8823                     (void *)mpt, (void *)cmd));
8824                 return;
8825         }
8826 
8827         while (prevp != NULL) {
8828                 if (prevp->cmd_linkp == cmd) {
8829                         if ((prevp->cmd_linkp = cmd->cmd_linkp) == NULL)
8830                                 mpt->m_waitqtail = &prevp->cmd_linkp;
8831 
8832                         cmd->cmd_linkp = NULL;
8833                         cmd->cmd_queued = FALSE;
8834                         NDBG7(("mptsas_waitq_delete: mpt=0x%p cmd=0x%p",
8835                             (void *)mpt, (void *)cmd));
8836                         return;
8837                 }
8838                 prevp = prevp->cmd_linkp;
8839         }
8840         cmn_err(CE_PANIC, "mpt: mptsas_waitq_delete: queue botch");
8841 }
8842 
8843 static mptsas_cmd_t *
8844 mptsas_tx_waitq_rm(mptsas_t *mpt)
8845 {
8846         mptsas_cmd_t *cmd;
8847         NDBG7(("mptsas_tx_waitq_rm"));
8848 
8849         MPTSAS_TX_WAITQ_RM(mpt, cmd);
8850 
8851         NDBG7(("mptsas_tx_waitq_rm: cmd=0x%p", (void *)cmd));
8852 
8853         return (cmd);
8854 }
8855 
8856 /*
8857  * remove specified cmd from the middle of the tx_waitq.
8858  */
8859 static void
8860 mptsas_tx_waitq_delete(mptsas_t *mpt, mptsas_cmd_t *cmd)
8861 {
8862         mptsas_cmd_t *prevp = mpt->m_tx_waitq;
8863 
8864         NDBG7(("mptsas_tx_waitq_delete: mpt=0x%p cmd=0x%p",
8865             (void *)mpt, (void *)cmd));
8866 
8867         if (prevp == cmd) {
8868                 if ((mpt->m_tx_waitq = cmd->cmd_linkp) == NULL)
8869                         mpt->m_tx_waitqtail = &mpt->m_tx_waitq;
8870 
8871                 cmd->cmd_linkp = NULL;
8872                 cmd->cmd_queued = FALSE;
8873                 NDBG7(("mptsas_tx_waitq_delete: mpt=0x%p cmd=0x%p",
8874                     (void *)mpt, (void *)cmd));
8875                 return;
8876         }
8877 
8878         while (prevp != NULL) {
8879                 if (prevp->cmd_linkp == cmd) {
8880                         if ((prevp->cmd_linkp = cmd->cmd_linkp) == NULL)
8881                                 mpt->m_tx_waitqtail = &prevp->cmd_linkp;
8882 
8883                         cmd->cmd_linkp = NULL;
8884                         cmd->cmd_queued = FALSE;
8885                         NDBG7(("mptsas_tx_waitq_delete: mpt=0x%p cmd=0x%p",
8886                             (void *)mpt, (void *)cmd));
8887                         return;
8888                 }
8889                 prevp = prevp->cmd_linkp;
8890         }
8891         cmn_err(CE_PANIC, "mpt: mptsas_tx_waitq_delete: queue botch");
8892 }
8893 
8894 /*
8895  * device and bus reset handling
8896  *
8897  * Notes:
8898  *      - RESET_ALL:    reset the controller
8899  *      - RESET_TARGET: reset the target specified in scsi_address
8900  */
8901 static int
8902 mptsas_scsi_reset(struct scsi_address *ap, int level)
8903 {
8904         mptsas_t                *mpt = ADDR2MPT(ap);
8905         int                     rval;
8906         mptsas_tgt_private_t    *tgt_private;
8907         mptsas_target_t         *ptgt = NULL;
8908 
8909         tgt_private = (mptsas_tgt_private_t *)ap->a_hba_tran->tran_tgt_private;
8910         ptgt = tgt_private->t_private;
8911         if (ptgt == NULL) {
8912                 return (FALSE);
8913         }
8914         NDBG22(("mptsas_scsi_reset: target=%d level=%d", ptgt->m_devhdl,
8915             level));
8916 
8917         mutex_enter(&mpt->m_mutex);
8918         /*
8919          * if we are not in panic set up a reset delay for this target
8920          */
8921         if (!ddi_in_panic()) {
8922                 mptsas_setup_bus_reset_delay(mpt);
8923         } else {
8924                 drv_usecwait(mpt->m_scsi_reset_delay * 1000);
8925         }
8926         rval = mptsas_do_scsi_reset(mpt, ptgt->m_devhdl);
8927         mutex_exit(&mpt->m_mutex);
8928 
8929         /*
8930          * The transport layer expect to only see TRUE and
8931          * FALSE. Therefore, we will adjust the return value
8932          * if mptsas_do_scsi_reset returns FAILED.
8933          */
8934         if (rval == FAILED)
8935                 rval = FALSE;
8936         return (rval);
8937 }
8938 
8939 static int
8940 mptsas_do_scsi_reset(mptsas_t *mpt, uint16_t devhdl)
8941 {
8942         int             rval = FALSE;
8943         uint8_t         config, disk;
8944 
8945         ASSERT(mutex_owned(&mpt->m_mutex));
8946 
8947         if (mptsas_debug_resets) {
8948                 mptsas_log(mpt, CE_WARN, "mptsas_do_scsi_reset: target=%d",
8949                     devhdl);
8950         }
8951 
8952         /*
8953          * Issue a Target Reset message to the target specified but not to a
8954          * disk making up a raid volume.  Just look through the RAID config
8955          * Phys Disk list of DevHandles.  If the target's DevHandle is in this
8956          * list, then don't reset this target.
8957          */
8958         for (config = 0; config < mpt->m_num_raid_configs; config++) {
8959                 for (disk = 0; disk < MPTSAS_MAX_DISKS_IN_CONFIG; disk++) {
8960                         if (devhdl == mpt->m_raidconfig[config].
8961                             m_physdisk_devhdl[disk]) {
8962                                 return (TRUE);
8963                         }
8964                 }
8965         }
8966 
8967         rval = mptsas_ioc_task_management(mpt,
8968             MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, devhdl, 0, NULL, 0, 0);
8969 
8970         mptsas_doneq_empty(mpt);
8971         return (rval);
8972 }
8973 
8974 static int
8975 mptsas_scsi_reset_notify(struct scsi_address *ap, int flag,
8976         void (*callback)(caddr_t), caddr_t arg)
8977 {
8978         mptsas_t        *mpt = ADDR2MPT(ap);
8979 
8980         NDBG22(("mptsas_scsi_reset_notify: tgt=%d", ap->a_target));
8981 
8982         return (scsi_hba_reset_notify_setup(ap, flag, callback, arg,
8983             &mpt->m_mutex, &mpt->m_reset_notify_listf));
8984 }
8985 
8986 static int
8987 mptsas_get_name(struct scsi_device *sd, char *name, int len)
8988 {
8989         dev_info_t      *lun_dip = NULL;
8990 
8991         ASSERT(sd != NULL);
8992         ASSERT(name != NULL);
8993         lun_dip = sd->sd_dev;
8994         ASSERT(lun_dip != NULL);
8995 
8996         if (mptsas_name_child(lun_dip, name, len) == DDI_SUCCESS) {
8997                 return (1);
8998         } else {
8999                 return (0);
9000         }
9001 }
9002 
9003 static int
9004 mptsas_get_bus_addr(struct scsi_device *sd, char *name, int len)
9005 {
9006         return (mptsas_get_name(sd, name, len));
9007 }
9008 
9009 void
9010 mptsas_set_throttle(mptsas_t *mpt, mptsas_target_t *ptgt, int what)
9011 {
9012 
9013         NDBG25(("mptsas_set_throttle: throttle=%x", what));
9014 
9015         /*
9016          * if the bus is draining/quiesced, no changes to the throttles
9017          * are allowed. Not allowing change of throttles during draining
9018          * limits error recovery but will reduce draining time
9019          *
9020          * all throttles should have been set to HOLD_THROTTLE
9021          */
9022         if (mpt->m_softstate & (MPTSAS_SS_QUIESCED | MPTSAS_SS_DRAINING)) {
9023                 return;
9024         }
9025 
9026         if (what == HOLD_THROTTLE) {
9027                 ptgt->m_t_throttle = HOLD_THROTTLE;
9028         } else if (ptgt->m_reset_delay == 0) {
9029                 ptgt->m_t_throttle = what;
9030         }
9031 }
9032 
9033 /*
9034  * Clean up from a device reset.
9035  * For the case of target reset, this function clears the waitq of all
9036  * commands for a particular target.   For the case of abort task set, this
9037  * function clears the waitq of all commonds for a particular target/lun.
9038  */
9039 static void
9040 mptsas_flush_target(mptsas_t *mpt, ushort_t target, int lun, uint8_t tasktype)
9041 {
9042         mptsas_slots_t  *slots = mpt->m_active;
9043         mptsas_cmd_t    *cmd, *next_cmd;
9044         int             slot;
9045         uchar_t         reason;
9046         uint_t          stat;
9047         hrtime_t        timestamp;
9048 
9049         NDBG25(("mptsas_flush_target: target=%d lun=%d", target, lun));
9050 
9051         timestamp = gethrtime();
9052 
9053         /*
9054          * Make sure the I/O Controller has flushed all cmds
9055          * that are associated with this target for a target reset
9056          * and target/lun for abort task set.
9057          * Account for TM requests, which use the last SMID.
9058          */
9059         for (slot = 0; slot <= mpt->m_active->m_n_normal; slot++) {
9060                 if ((cmd = slots->m_slot[slot]) == NULL)
9061                         continue;
9062                 reason = CMD_RESET;
9063                 stat = STAT_DEV_RESET;
9064                 switch (tasktype) {
9065                 case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
9066                         if (Tgt(cmd) == target) {
9067                                 if (cmd->cmd_active_expiration <= timestamp) {
9068                                         /*
9069                                          * When timeout requested, propagate
9070                                          * proper reason and statistics to
9071                                          * target drivers.
9072                                          */
9073                                         reason = CMD_TIMEOUT;
9074                                         stat |= STAT_TIMEOUT;
9075                                 }
9076                                 NDBG25(("mptsas_flush_target discovered non-"
9077                                     "NULL cmd in slot %d, tasktype 0x%x", slot,
9078                                     tasktype));
9079                                 mptsas_dump_cmd(mpt, cmd);
9080                                 mptsas_remove_cmd(mpt, cmd);
9081                                 mptsas_set_pkt_reason(mpt, cmd, reason, stat);
9082                                 mptsas_doneq_add(mpt, cmd);
9083                         }
9084                         break;
9085                 case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
9086                         reason = CMD_ABORTED;
9087                         stat = STAT_ABORTED;
9088                         /*FALLTHROUGH*/
9089                 case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
9090                         if ((Tgt(cmd) == target) && (Lun(cmd) == lun)) {
9091 
9092                                 NDBG25(("mptsas_flush_target discovered non-"
9093                                     "NULL cmd in slot %d, tasktype 0x%x", slot,
9094                                     tasktype));
9095                                 mptsas_dump_cmd(mpt, cmd);
9096                                 mptsas_remove_cmd(mpt, cmd);
9097                                 mptsas_set_pkt_reason(mpt, cmd, reason,
9098                                     stat);
9099                                 mptsas_doneq_add(mpt, cmd);
9100                         }
9101                         break;
9102                 default:
9103                         break;
9104                 }
9105         }
9106 
9107         /*
9108          * Flush the waitq and tx_waitq of this target's cmds
9109          */
9110         cmd = mpt->m_waitq;
9111 
9112         reason = CMD_RESET;
9113         stat = STAT_DEV_RESET;
9114 
9115         switch (tasktype) {
9116         case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET:
9117                 while (cmd != NULL) {
9118                         next_cmd = cmd->cmd_linkp;
9119                         if (Tgt(cmd) == target) {
9120                                 mptsas_waitq_delete(mpt, cmd);
9121                                 mptsas_set_pkt_reason(mpt, cmd,
9122                                     reason, stat);
9123                                 mptsas_doneq_add(mpt, cmd);
9124                         }
9125                         cmd = next_cmd;
9126                 }
9127                 mutex_enter(&mpt->m_tx_waitq_mutex);
9128                 cmd = mpt->m_tx_waitq;
9129                 while (cmd != NULL) {
9130                         next_cmd = cmd->cmd_linkp;
9131                         if (Tgt(cmd) == target) {
9132                                 mptsas_tx_waitq_delete(mpt, cmd);
9133                                 mutex_exit(&mpt->m_tx_waitq_mutex);
9134                                 mptsas_set_pkt_reason(mpt, cmd,
9135                                     reason, stat);
9136                                 mptsas_doneq_add(mpt, cmd);
9137                                 mutex_enter(&mpt->m_tx_waitq_mutex);
9138                         }
9139                         cmd = next_cmd;
9140                 }
9141                 mutex_exit(&mpt->m_tx_waitq_mutex);
9142                 break;
9143         case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET:
9144                 reason = CMD_ABORTED;
9145                 stat =  STAT_ABORTED;
9146                 /*FALLTHROUGH*/
9147         case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET:
9148                 while (cmd != NULL) {
9149                         next_cmd = cmd->cmd_linkp;
9150                         if ((Tgt(cmd) == target) && (Lun(cmd) == lun)) {
9151                                 mptsas_waitq_delete(mpt, cmd);
9152                                 mptsas_set_pkt_reason(mpt, cmd,
9153                                     reason, stat);
9154                                 mptsas_doneq_add(mpt, cmd);
9155                         }
9156                         cmd = next_cmd;
9157                 }
9158                 mutex_enter(&mpt->m_tx_waitq_mutex);
9159                 cmd = mpt->m_tx_waitq;
9160                 while (cmd != NULL) {
9161                         next_cmd = cmd->cmd_linkp;
9162                         if ((Tgt(cmd) == target) && (Lun(cmd) == lun)) {
9163                                 mptsas_tx_waitq_delete(mpt, cmd);
9164                                 mutex_exit(&mpt->m_tx_waitq_mutex);
9165                                 mptsas_set_pkt_reason(mpt, cmd,
9166                                     reason, stat);
9167                                 mptsas_doneq_add(mpt, cmd);
9168                                 mutex_enter(&mpt->m_tx_waitq_mutex);
9169                         }
9170                         cmd = next_cmd;
9171                 }
9172                 mutex_exit(&mpt->m_tx_waitq_mutex);
9173                 break;
9174         default:
9175                 mptsas_log(mpt, CE_WARN, "Unknown task management type %d.",
9176                     tasktype);
9177                 break;
9178         }
9179 }
9180 
9181 /*
9182  * Clean up hba state, abort all outstanding command and commands in waitq
9183  * reset timeout of all targets.
9184  */
9185 static void
9186 mptsas_flush_hba(mptsas_t *mpt)
9187 {
9188         mptsas_slots_t  *slots = mpt->m_active;
9189         mptsas_cmd_t    *cmd;
9190         int             slot;
9191 
9192         NDBG25(("mptsas_flush_hba"));
9193 
9194         /*
9195          * The I/O Controller should have already sent back
9196          * all commands via the scsi I/O reply frame.  Make
9197          * sure all commands have been flushed.
9198          * Account for TM request, which use the last SMID.
9199          */
9200         for (slot = 0; slot <= mpt->m_active->m_n_normal; slot++) {
9201                 if ((cmd = slots->m_slot[slot]) == NULL)
9202                         continue;
9203 
9204                 if (cmd->cmd_flags & CFLAG_CMDIOC) {
9205                         /*
9206                          * Need to make sure to tell everyone that might be
9207                          * waiting on this command that it's going to fail.  If
9208                          * we get here, this command will never timeout because
9209                          * the active command table is going to be re-allocated,
9210                          * so there will be nothing to check against a time out.
9211                          * Instead, mark the command as failed due to reset.
9212                          */
9213                         mptsas_set_pkt_reason(mpt, cmd, CMD_RESET,
9214                             STAT_BUS_RESET);
9215                         if ((cmd->cmd_flags &
9216                             (CFLAG_PASSTHRU | CFLAG_CONFIG | CFLAG_FW_DIAG))) {
9217                                 cmd->cmd_flags |= CFLAG_FINISHED;
9218                                 cv_broadcast(&mpt->m_passthru_cv);
9219                                 cv_broadcast(&mpt->m_config_cv);
9220                                 cv_broadcast(&mpt->m_fw_diag_cv);
9221                         }
9222                         continue;
9223                 }
9224 
9225                 NDBG25(("mptsas_flush_hba discovered non-NULL cmd in slot %d",
9226                     slot));
9227                 mptsas_dump_cmd(mpt, cmd);
9228 
9229                 mptsas_remove_cmd(mpt, cmd);
9230                 mptsas_set_pkt_reason(mpt, cmd, CMD_RESET, STAT_BUS_RESET);
9231                 mptsas_doneq_add(mpt, cmd);
9232         }
9233 
9234         /*
9235          * Flush the waitq.
9236          */
9237         while ((cmd = mptsas_waitq_rm(mpt)) != NULL) {
9238                 mptsas_set_pkt_reason(mpt, cmd, CMD_RESET, STAT_BUS_RESET);
9239                 if ((cmd->cmd_flags & CFLAG_PASSTHRU) ||
9240                     (cmd->cmd_flags & CFLAG_CONFIG) ||
9241                     (cmd->cmd_flags & CFLAG_FW_DIAG)) {
9242                         cmd->cmd_flags |= CFLAG_FINISHED;
9243                         cv_broadcast(&mpt->m_passthru_cv);
9244                         cv_broadcast(&mpt->m_config_cv);
9245                         cv_broadcast(&mpt->m_fw_diag_cv);
9246                 } else {
9247                         mptsas_doneq_add(mpt, cmd);
9248                 }
9249         }
9250 
9251         /*
9252          * Flush the tx_waitq
9253          */
9254         mutex_enter(&mpt->m_tx_waitq_mutex);
9255         while ((cmd = mptsas_tx_waitq_rm(mpt)) != NULL) {
9256                 mutex_exit(&mpt->m_tx_waitq_mutex);
9257                 mptsas_set_pkt_reason(mpt, cmd, CMD_RESET, STAT_BUS_RESET);
9258                 mptsas_doneq_add(mpt, cmd);
9259                 mutex_enter(&mpt->m_tx_waitq_mutex);
9260         }
9261         mutex_exit(&mpt->m_tx_waitq_mutex);
9262 
9263         /*
9264          * Drain the taskqs prior to reallocating resources.
9265          */
9266         mutex_exit(&mpt->m_mutex);
9267         ddi_taskq_wait(mpt->m_event_taskq);
9268         ddi_taskq_wait(mpt->m_dr_taskq);
9269         mutex_enter(&mpt->m_mutex);
9270 }
9271 
9272 /*
9273  * set pkt_reason and OR in pkt_statistics flag
9274  */
9275 static void
9276 mptsas_set_pkt_reason(mptsas_t *mpt, mptsas_cmd_t *cmd, uchar_t reason,
9277     uint_t stat)
9278 {
9279 #ifndef __lock_lint
9280         _NOTE(ARGUNUSED(mpt))
9281 #endif
9282 
9283         NDBG25(("mptsas_set_pkt_reason: cmd=0x%p reason=%x stat=%x",
9284             (void *)cmd, reason, stat));
9285 
9286         if (cmd) {
9287                 if (cmd->cmd_pkt->pkt_reason == CMD_CMPLT) {
9288                         cmd->cmd_pkt->pkt_reason = reason;
9289                 }
9290                 cmd->cmd_pkt->pkt_statistics |= stat;
9291         }
9292 }
9293 
9294 static void
9295 mptsas_start_watch_reset_delay()
9296 {
9297         NDBG22(("mptsas_start_watch_reset_delay"));
9298 
9299         mutex_enter(&mptsas_global_mutex);
9300         if (mptsas_reset_watch == NULL && mptsas_timeouts_enabled) {
9301                 mptsas_reset_watch = timeout(mptsas_watch_reset_delay, NULL,
9302                     drv_usectohz((clock_t)
9303                     MPTSAS_WATCH_RESET_DELAY_TICK * 1000));
9304                 ASSERT(mptsas_reset_watch != NULL);
9305         }
9306         mutex_exit(&mptsas_global_mutex);
9307 }
9308 
9309 static void
9310 mptsas_setup_bus_reset_delay(mptsas_t *mpt)
9311 {
9312         mptsas_target_t *ptgt = NULL;
9313 
9314         ASSERT(MUTEX_HELD(&mpt->m_mutex));
9315 
9316         NDBG22(("mptsas_setup_bus_reset_delay"));
9317         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
9318             ptgt = refhash_next(mpt->m_targets, ptgt)) {
9319                 mptsas_set_throttle(mpt, ptgt, HOLD_THROTTLE);
9320                 ptgt->m_reset_delay = mpt->m_scsi_reset_delay;
9321         }
9322 
9323         mptsas_start_watch_reset_delay();
9324 }
9325 
9326 /*
9327  * mptsas_watch_reset_delay(_subr) is invoked by timeout() and checks every
9328  * mpt instance for active reset delays
9329  */
9330 static void
9331 mptsas_watch_reset_delay(void *arg)
9332 {
9333 #ifndef __lock_lint
9334         _NOTE(ARGUNUSED(arg))
9335 #endif
9336 
9337         mptsas_t        *mpt;
9338         int             not_done = 0;
9339 
9340         NDBG22(("mptsas_watch_reset_delay"));
9341 
9342         mutex_enter(&mptsas_global_mutex);
9343         mptsas_reset_watch = 0;
9344         mutex_exit(&mptsas_global_mutex);
9345         rw_enter(&mptsas_global_rwlock, RW_READER);
9346         for (mpt = mptsas_head; mpt != NULL; mpt = mpt->m_next) {
9347                 if (mpt->m_tran == 0) {
9348                         continue;
9349                 }
9350                 mutex_enter(&mpt->m_mutex);
9351                 not_done += mptsas_watch_reset_delay_subr(mpt);
9352                 mutex_exit(&mpt->m_mutex);
9353         }
9354         rw_exit(&mptsas_global_rwlock);
9355 
9356         if (not_done) {
9357                 mptsas_start_watch_reset_delay();
9358         }
9359 }
9360 
9361 static int
9362 mptsas_watch_reset_delay_subr(mptsas_t *mpt)
9363 {
9364         int             done = 0;
9365         int             restart = 0;
9366         mptsas_target_t *ptgt = NULL;
9367 
9368         NDBG22(("mptsas_watch_reset_delay_subr: mpt=0x%p", (void *)mpt));
9369 
9370         ASSERT(mutex_owned(&mpt->m_mutex));
9371 
9372         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
9373             ptgt = refhash_next(mpt->m_targets, ptgt)) {
9374                 if (ptgt->m_reset_delay != 0) {
9375                         ptgt->m_reset_delay -=
9376                             MPTSAS_WATCH_RESET_DELAY_TICK;
9377                         if (ptgt->m_reset_delay <= 0) {
9378                                 ptgt->m_reset_delay = 0;
9379                                 mptsas_set_throttle(mpt, ptgt,
9380                                     MAX_THROTTLE);
9381                                 restart++;
9382                         } else {
9383                                 done = -1;
9384                         }
9385                 }
9386         }
9387 
9388         if (restart > 0) {
9389                 mptsas_restart_hba(mpt);
9390         }
9391         return (done);
9392 }
9393 
9394 #ifdef MPTSAS_TEST
9395 static void
9396 mptsas_test_reset(mptsas_t *mpt, int target)
9397 {
9398         mptsas_target_t    *ptgt = NULL;
9399 
9400         if (mptsas_rtest == target) {
9401                 if (mptsas_do_scsi_reset(mpt, target) == TRUE) {
9402                         mptsas_rtest = -1;
9403                 }
9404                 if (mptsas_rtest == -1) {
9405                         NDBG22(("mptsas_test_reset success"));
9406                 }
9407         }
9408 }
9409 #endif
9410 
9411 /*
9412  * abort handling:
9413  *
9414  * Notes:
9415  *      - if pkt is not NULL, abort just that command
9416  *      - if pkt is NULL, abort all outstanding commands for target
9417  */
9418 static int
9419 mptsas_scsi_abort(struct scsi_address *ap, struct scsi_pkt *pkt)
9420 {
9421         mptsas_t                *mpt = ADDR2MPT(ap);
9422         int                     rval;
9423         mptsas_tgt_private_t    *tgt_private;
9424         int                     target, lun;
9425 
9426         tgt_private = (mptsas_tgt_private_t *)ap->a_hba_tran->
9427             tran_tgt_private;
9428         ASSERT(tgt_private != NULL);
9429         target = tgt_private->t_private->m_devhdl;
9430         lun = tgt_private->t_lun;
9431 
9432         NDBG23(("mptsas_scsi_abort: target=%d.%d", target, lun));
9433 
9434         mutex_enter(&mpt->m_mutex);
9435         rval = mptsas_do_scsi_abort(mpt, target, lun, pkt);
9436         mutex_exit(&mpt->m_mutex);
9437         return (rval);
9438 }
9439 
9440 static int
9441 mptsas_do_scsi_abort(mptsas_t *mpt, int target, int lun, struct scsi_pkt *pkt)
9442 {
9443         mptsas_cmd_t    *sp = NULL;
9444         mptsas_slots_t  *slots = mpt->m_active;
9445         int             rval = FALSE;
9446 
9447         ASSERT(mutex_owned(&mpt->m_mutex));
9448 
9449         /*
9450          * Abort the command pkt on the target/lun in ap.  If pkt is
9451          * NULL, abort all outstanding commands on that target/lun.
9452          * If you can abort them, return 1, else return 0.
9453          * Each packet that's aborted should be sent back to the target
9454          * driver through the callback routine, with pkt_reason set to
9455          * CMD_ABORTED.
9456          *
9457          * abort cmd pkt on HBA hardware; clean out of outstanding
9458          * command lists, etc.
9459          */
9460         if (pkt != NULL) {
9461                 /* abort the specified packet */
9462                 sp = PKT2CMD(pkt);
9463 
9464                 if (sp->cmd_queued) {
9465                         NDBG23(("mptsas_do_scsi_abort: queued sp=0x%p aborted",
9466                             (void *)sp));
9467                         mptsas_waitq_delete(mpt, sp);
9468                         mptsas_set_pkt_reason(mpt, sp, CMD_ABORTED,
9469                             STAT_ABORTED);
9470                         mptsas_doneq_add(mpt, sp);
9471                         rval = TRUE;
9472                         goto done;
9473                 }
9474 
9475                 /*
9476                  * Have mpt firmware abort this command
9477                  */
9478 
9479                 if (slots->m_slot[sp->cmd_slot] != NULL) {
9480                         rval = mptsas_ioc_task_management(mpt,
9481                             MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, target,
9482                             lun, NULL, 0, 0);
9483 
9484                         /*
9485                          * The transport layer expects only TRUE and FALSE.
9486                          * Therefore, if mptsas_ioc_task_management returns
9487                          * FAILED we will return FALSE.
9488                          */
9489                         if (rval == FAILED)
9490                                 rval = FALSE;
9491                         goto done;
9492                 }
9493         }
9494 
9495         /*
9496          * If pkt is NULL then abort task set
9497          */
9498         rval = mptsas_ioc_task_management(mpt,
9499             MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, target, lun, NULL, 0, 0);
9500 
9501         /*
9502          * The transport layer expects only TRUE and FALSE.
9503          * Therefore, if mptsas_ioc_task_management returns
9504          * FAILED we will return FALSE.
9505          */
9506         if (rval == FAILED)
9507                 rval = FALSE;
9508 
9509 #ifdef MPTSAS_TEST
9510         if (rval && mptsas_test_stop) {
9511                 debug_enter("mptsas_do_scsi_abort");
9512         }
9513 #endif
9514 
9515 done:
9516         mptsas_doneq_empty(mpt);
9517         return (rval);
9518 }
9519 
9520 /*
9521  * capability handling:
9522  * (*tran_getcap).  Get the capability named, and return its value.
9523  */
9524 static int
9525 mptsas_scsi_getcap(struct scsi_address *ap, char *cap, int tgtonly)
9526 {
9527         mptsas_t        *mpt = ADDR2MPT(ap);
9528         int             ckey;
9529         int             rval = FALSE;
9530 
9531         NDBG24(("mptsas_scsi_getcap: target=%d, cap=%s tgtonly=%x",
9532             ap->a_target, cap, tgtonly));
9533 
9534         mutex_enter(&mpt->m_mutex);
9535 
9536         if ((mptsas_scsi_capchk(cap, tgtonly, &ckey)) != TRUE) {
9537                 mutex_exit(&mpt->m_mutex);
9538                 return (UNDEFINED);
9539         }
9540 
9541         switch (ckey) {
9542         case SCSI_CAP_DMA_MAX:
9543                 rval = (int)mpt->m_msg_dma_attr.dma_attr_maxxfer;
9544                 break;
9545         case SCSI_CAP_ARQ:
9546                 rval = TRUE;
9547                 break;
9548         case SCSI_CAP_MSG_OUT:
9549         case SCSI_CAP_PARITY:
9550         case SCSI_CAP_UNTAGGED_QING:
9551                 rval = TRUE;
9552                 break;
9553         case SCSI_CAP_TAGGED_QING:
9554                 rval = TRUE;
9555                 break;
9556         case SCSI_CAP_RESET_NOTIFICATION:
9557                 rval = TRUE;
9558                 break;
9559         case SCSI_CAP_LINKED_CMDS:
9560                 rval = FALSE;
9561                 break;
9562         case SCSI_CAP_QFULL_RETRIES:
9563                 rval = ((mptsas_tgt_private_t *)(ap->a_hba_tran->
9564                     tran_tgt_private))->t_private->m_qfull_retries;
9565                 break;
9566         case SCSI_CAP_QFULL_RETRY_INTERVAL:
9567                 rval = drv_hztousec(((mptsas_tgt_private_t *)
9568                     (ap->a_hba_tran->tran_tgt_private))->
9569                     t_private->m_qfull_retry_interval) / 1000;
9570                 break;
9571         case SCSI_CAP_CDB_LEN:
9572                 rval = CDB_GROUP4;
9573                 break;
9574         case SCSI_CAP_INTERCONNECT_TYPE:
9575                 rval = INTERCONNECT_SAS;
9576                 break;
9577         case SCSI_CAP_TRAN_LAYER_RETRIES:
9578                 if (mpt->m_ioc_capabilities &
9579                     MPI2_IOCFACTS_CAPABILITY_TLR)
9580                         rval = TRUE;
9581                 else
9582                         rval = FALSE;
9583                 break;
9584         default:
9585                 rval = UNDEFINED;
9586                 break;
9587         }
9588 
9589         NDBG24(("mptsas_scsi_getcap: %s, rval=%x", cap, rval));
9590 
9591         mutex_exit(&mpt->m_mutex);
9592         return (rval);
9593 }
9594 
9595 /*
9596  * (*tran_setcap).  Set the capability named to the value given.
9597  */
9598 static int
9599 mptsas_scsi_setcap(struct scsi_address *ap, char *cap, int value, int tgtonly)
9600 {
9601         mptsas_t        *mpt = ADDR2MPT(ap);
9602         int             ckey;
9603         int             rval = FALSE;
9604 
9605         NDBG24(("mptsas_scsi_setcap: target=%d, cap=%s value=%x tgtonly=%x",
9606             ap->a_target, cap, value, tgtonly));
9607 
9608         if (!tgtonly) {
9609                 return (rval);
9610         }
9611 
9612         mutex_enter(&mpt->m_mutex);
9613 
9614         if ((mptsas_scsi_capchk(cap, tgtonly, &ckey)) != TRUE) {
9615                 mutex_exit(&mpt->m_mutex);
9616                 return (UNDEFINED);
9617         }
9618 
9619         switch (ckey) {
9620         case SCSI_CAP_DMA_MAX:
9621         case SCSI_CAP_MSG_OUT:
9622         case SCSI_CAP_PARITY:
9623         case SCSI_CAP_INITIATOR_ID:
9624         case SCSI_CAP_LINKED_CMDS:
9625         case SCSI_CAP_UNTAGGED_QING:
9626         case SCSI_CAP_RESET_NOTIFICATION:
9627                 /*
9628                  * None of these are settable via
9629                  * the capability interface.
9630                  */
9631                 break;
9632         case SCSI_CAP_ARQ:
9633                 /*
9634                  * We cannot turn off arq so return false if asked to
9635                  */
9636                 if (value) {
9637                         rval = TRUE;
9638                 } else {
9639                         rval = FALSE;
9640                 }
9641                 break;
9642         case SCSI_CAP_TAGGED_QING:
9643                 mptsas_set_throttle(mpt, ((mptsas_tgt_private_t *)
9644                     (ap->a_hba_tran->tran_tgt_private))->t_private,
9645                     MAX_THROTTLE);
9646                 rval = TRUE;
9647                 break;
9648         case SCSI_CAP_QFULL_RETRIES:
9649                 ((mptsas_tgt_private_t *)(ap->a_hba_tran->tran_tgt_private))->
9650                     t_private->m_qfull_retries = (uchar_t)value;
9651                 rval = TRUE;
9652                 break;
9653         case SCSI_CAP_QFULL_RETRY_INTERVAL:
9654                 ((mptsas_tgt_private_t *)(ap->a_hba_tran->tran_tgt_private))->
9655                     t_private->m_qfull_retry_interval =
9656                     drv_usectohz(value * 1000);
9657                 rval = TRUE;
9658                 break;
9659         default:
9660                 rval = UNDEFINED;
9661                 break;
9662         }
9663         mutex_exit(&mpt->m_mutex);
9664         return (rval);
9665 }
9666 
9667 /*
9668  * Utility routine for mptsas_ifsetcap/ifgetcap
9669  */
9670 /*ARGSUSED*/
9671 static int
9672 mptsas_scsi_capchk(char *cap, int tgtonly, int *cidxp)
9673 {
9674         NDBG24(("mptsas_scsi_capchk: cap=%s", cap));
9675 
9676         if (!cap)
9677                 return (FALSE);
9678 
9679         *cidxp = scsi_hba_lookup_capstr(cap);
9680         return (TRUE);
9681 }
9682 
9683 static int
9684 mptsas_alloc_active_slots(mptsas_t *mpt, int flag)
9685 {
9686         mptsas_slots_t  *old_active = mpt->m_active;
9687         mptsas_slots_t  *new_active;
9688         size_t          size;
9689 
9690         /*
9691          * if there are active commands, then we cannot
9692          * change size of active slots array.
9693          */
9694         ASSERT(mpt->m_ncmds == 0);
9695 
9696         size = MPTSAS_SLOTS_SIZE(mpt);
9697         new_active = kmem_zalloc(size, flag);
9698         if (new_active == NULL) {
9699                 NDBG1(("new active alloc failed"));
9700                 return (-1);
9701         }
9702         /*
9703          * Since SMID 0 is reserved and the TM slot is reserved, the
9704          * number of slots that can be used at any one time is
9705          * m_max_requests - 2.
9706          */
9707         new_active->m_n_normal = (mpt->m_max_requests - 2);
9708         new_active->m_size = size;
9709         new_active->m_rotor = 1;
9710         if (old_active)
9711                 mptsas_free_active_slots(mpt);
9712         mpt->m_active = new_active;
9713 
9714         return (0);
9715 }
9716 
9717 static void
9718 mptsas_free_active_slots(mptsas_t *mpt)
9719 {
9720         mptsas_slots_t  *active = mpt->m_active;
9721         size_t          size;
9722 
9723         if (active == NULL)
9724                 return;
9725         size = active->m_size;
9726         kmem_free(active, size);
9727         mpt->m_active = NULL;
9728 }
9729 
9730 /*
9731  * Error logging, printing, and debug print routines.
9732  */
9733 static char *mptsas_label = "mpt_sas";
9734 
9735 /*PRINTFLIKE3*/
9736 void
9737 mptsas_log(mptsas_t *mpt, int level, char *fmt, ...)
9738 {
9739         dev_info_t      *dev;
9740         va_list         ap;
9741 
9742         if (mpt) {
9743                 dev = mpt->m_dip;
9744         } else {
9745                 dev = 0;
9746         }
9747 
9748         mutex_enter(&mptsas_log_mutex);
9749 
9750         va_start(ap, fmt);
9751         (void) vsprintf(mptsas_log_buf, fmt, ap);
9752         va_end(ap);
9753 
9754         if (level == CE_CONT) {
9755                 scsi_log(dev, mptsas_label, level, "%s\n", mptsas_log_buf);
9756         } else {
9757                 scsi_log(dev, mptsas_label, level, "%s", mptsas_log_buf);
9758         }
9759 
9760         mutex_exit(&mptsas_log_mutex);
9761 }
9762 
9763 #ifdef MPTSAS_DEBUG
9764 /*
9765  * Use a circular buffer to log messages to private memory.
9766  * Increment idx atomically to minimize risk to miss lines.
9767  * It's fast and does not hold up the proceedings too much.
9768  */
9769 static const size_t mptsas_dbglog_linecnt = MPTSAS_DBGLOG_LINECNT;
9770 static const size_t mptsas_dbglog_linelen = MPTSAS_DBGLOG_LINELEN;
9771 static char mptsas_dbglog_bufs[MPTSAS_DBGLOG_LINECNT][MPTSAS_DBGLOG_LINELEN];
9772 static uint32_t mptsas_dbglog_idx = 0;
9773 
9774 /*PRINTFLIKE1*/
9775 void
9776 mptsas_debug_log(char *fmt, ...)
9777 {
9778         va_list         ap;
9779         uint32_t        idx;
9780 
9781         idx = atomic_inc_32_nv(&mptsas_dbglog_idx) &
9782             (mptsas_dbglog_linecnt - 1);
9783 
9784         va_start(ap, fmt);
9785         (void) vsnprintf(mptsas_dbglog_bufs[idx],
9786             mptsas_dbglog_linelen, fmt, ap);
9787         va_end(ap);
9788 }
9789 
9790 /*PRINTFLIKE1*/
9791 void
9792 mptsas_printf(char *fmt, ...)
9793 {
9794         dev_info_t      *dev = 0;
9795         va_list         ap;
9796 
9797         mutex_enter(&mptsas_log_mutex);
9798 
9799         va_start(ap, fmt);
9800         (void) vsprintf(mptsas_log_buf, fmt, ap);
9801         va_end(ap);
9802 
9803 #ifdef PROM_PRINTF
9804         prom_printf("%s:\t%s\n", mptsas_label, mptsas_log_buf);
9805 #else
9806         scsi_log(dev, mptsas_label, CE_CONT, "!%s\n", mptsas_log_buf);
9807 #endif
9808         mutex_exit(&mptsas_log_mutex);
9809 }
9810 #endif
9811 
9812 /*
9813  * timeout handling
9814  */
9815 static void
9816 mptsas_watch(void *arg)
9817 {
9818 #ifndef __lock_lint
9819         _NOTE(ARGUNUSED(arg))
9820 #endif
9821 
9822         mptsas_t        *mpt;
9823         uint32_t        doorbell;
9824 
9825         NDBG30(("mptsas_watch"));
9826 
9827         rw_enter(&mptsas_global_rwlock, RW_READER);
9828         for (mpt = mptsas_head; mpt != (mptsas_t *)NULL; mpt = mpt->m_next) {
9829 
9830                 mutex_enter(&mpt->m_mutex);
9831 
9832                 /* Skip device if not powered on */
9833                 if (mpt->m_options & MPTSAS_OPT_PM) {
9834                         if (mpt->m_power_level == PM_LEVEL_D0) {
9835                                 (void) pm_busy_component(mpt->m_dip, 0);
9836                                 mpt->m_busy = 1;
9837                         } else {
9838                                 mutex_exit(&mpt->m_mutex);
9839                                 continue;
9840                         }
9841                 }
9842 
9843                 /*
9844                  * Check if controller is in a FAULT state. If so, reset it.
9845                  */
9846                 doorbell = ddi_get32(mpt->m_datap, &mpt->m_reg->Doorbell);
9847                 if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
9848                         doorbell &= MPI2_DOORBELL_DATA_MASK;
9849                         mptsas_log(mpt, CE_WARN, "MPT Firmware Fault, "
9850                             "code: %04x", doorbell);
9851                         mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
9852                         if ((mptsas_restart_ioc(mpt)) == DDI_FAILURE) {
9853                                 mptsas_log(mpt, CE_WARN, "Reset failed"
9854                                     "after fault was detected");
9855                         }
9856                 }
9857 
9858                 /*
9859                  * For now, always call mptsas_watchsubr.
9860                  */
9861                 mptsas_watchsubr(mpt);
9862 
9863                 if (mpt->m_options & MPTSAS_OPT_PM) {
9864                         mpt->m_busy = 0;
9865                         (void) pm_idle_component(mpt->m_dip, 0);
9866                 }
9867 
9868                 mutex_exit(&mpt->m_mutex);
9869         }
9870         rw_exit(&mptsas_global_rwlock);
9871 
9872         mutex_enter(&mptsas_global_mutex);
9873         if (mptsas_timeouts_enabled)
9874                 mptsas_timeout_id = timeout(mptsas_watch, NULL, mptsas_tick);
9875         mutex_exit(&mptsas_global_mutex);
9876 }
9877 
9878 static void
9879 mptsas_watchsubr(mptsas_t *mpt)
9880 {
9881         int             i;
9882         mptsas_cmd_t    *cmd;
9883         mptsas_target_t *ptgt = NULL;
9884         hrtime_t        timestamp = gethrtime();
9885 
9886         ASSERT(MUTEX_HELD(&mpt->m_mutex));
9887 
9888         NDBG30(("mptsas_watchsubr: mpt=0x%p", (void *)mpt));
9889 
9890 #ifdef MPTSAS_TEST
9891         if (mptsas_enable_untagged) {
9892                 mptsas_test_untagged++;
9893         }
9894 #endif
9895 
9896         /*
9897          * Check for commands stuck in active slot
9898          * Account for TM requests, which use the last SMID.
9899          */
9900         for (i = 0; i <= mpt->m_active->m_n_normal; i++) {
9901                 if ((cmd = mpt->m_active->m_slot[i]) != NULL) {
9902                         if (cmd->cmd_active_expiration <= timestamp) {
9903                                 if ((cmd->cmd_flags & CFLAG_CMDIOC) == 0) {
9904                                         /*
9905                                          * There seems to be a command stuck
9906                                          * in the active slot.  Drain throttle.
9907                                          */
9908                                         mptsas_set_throttle(mpt,
9909                                             cmd->cmd_tgt_addr,
9910                                             DRAIN_THROTTLE);
9911                                 } else if (cmd->cmd_flags &
9912                                     (CFLAG_PASSTHRU | CFLAG_CONFIG |
9913                                     CFLAG_FW_DIAG)) {
9914                                         /*
9915                                          * passthrough command timeout
9916                                          */
9917                                         cmd->cmd_flags |= (CFLAG_FINISHED |
9918                                             CFLAG_TIMEOUT);
9919                                         cv_broadcast(&mpt->m_passthru_cv);
9920                                         cv_broadcast(&mpt->m_config_cv);
9921                                         cv_broadcast(&mpt->m_fw_diag_cv);
9922                                 }
9923                         }
9924                 }
9925         }
9926 
9927         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
9928             ptgt = refhash_next(mpt->m_targets, ptgt)) {
9929                 /*
9930                  * If we were draining due to a qfull condition,
9931                  * go back to full throttle.
9932                  */
9933                 if ((ptgt->m_t_throttle < MAX_THROTTLE) &&
9934                     (ptgt->m_t_throttle > HOLD_THROTTLE) &&
9935                     (ptgt->m_t_ncmds < ptgt->m_t_throttle)) {
9936                         mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
9937                         mptsas_restart_hba(mpt);
9938                 }
9939 
9940                 cmd = TAILQ_LAST(&ptgt->m_active_cmdq, mptsas_active_cmdq);
9941                 if (cmd == NULL)
9942                         continue;
9943 
9944                 if (cmd->cmd_active_expiration <= timestamp) {
9945                         /*
9946                          * Earliest command timeout expired. Drain throttle.
9947                          */
9948                         mptsas_set_throttle(mpt, ptgt, DRAIN_THROTTLE);
9949 
9950                         /*
9951                          * Check for remaining commands.
9952                          */
9953                         cmd = TAILQ_FIRST(&ptgt->m_active_cmdq);
9954                         if (cmd->cmd_active_expiration > timestamp) {
9955                                 /*
9956                                  * Wait for remaining commands to complete or
9957                                  * time out.
9958                                  */
9959                                 NDBG23(("command timed out, pending drain"));
9960                                 continue;
9961                         }
9962 
9963                         /*
9964                          * All command timeouts expired.
9965                          */
9966                         mptsas_log(mpt, CE_NOTE, "Timeout of %d seconds "
9967                             "expired with %d commands on target %d lun %d.",
9968                             cmd->cmd_pkt->pkt_time, ptgt->m_t_ncmds,
9969                             ptgt->m_devhdl, Lun(cmd));
9970 
9971                         mptsas_cmd_timeout(mpt, ptgt);
9972                 } else if (cmd->cmd_active_expiration <=
9973                     timestamp + (hrtime_t)mptsas_scsi_watchdog_tick * NANOSEC) {
9974                         NDBG23(("pending timeout"));
9975                         mptsas_set_throttle(mpt, ptgt, DRAIN_THROTTLE);
9976                 }
9977         }
9978 }
9979 
9980 /*
9981  * timeout recovery
9982  */
9983 static void
9984 mptsas_cmd_timeout(mptsas_t *mpt, mptsas_target_t *ptgt)
9985 {
9986         uint16_t        devhdl;
9987         uint64_t        sas_wwn;
9988         uint8_t         phy;
9989         char            wwn_str[MPTSAS_WWN_STRLEN];
9990 
9991         devhdl = ptgt->m_devhdl;
9992         sas_wwn = ptgt->m_addr.mta_wwn;
9993         phy = ptgt->m_phynum;
9994         if (sas_wwn == 0) {
9995                 (void) sprintf(wwn_str, "p%x", phy);
9996         } else {
9997                 (void) sprintf(wwn_str, "w%016"PRIx64, sas_wwn);
9998         }
9999 
10000         NDBG29(("mptsas_cmd_timeout: target=%d", devhdl));
10001         mptsas_log(mpt, CE_WARN, "Disconnected command timeout for "
10002             "target %d %s, enclosure %u", devhdl, wwn_str,
10003             ptgt->m_enclosure);
10004 
10005         /*
10006          * Abort all outstanding commands on the device.
10007          */
10008         NDBG29(("mptsas_cmd_timeout: device reset"));
10009         if (mptsas_do_scsi_reset(mpt, devhdl) != TRUE) {
10010                 mptsas_log(mpt, CE_WARN, "Target %d reset for command timeout "
10011                     "recovery failed!", devhdl);
10012         }
10013 }
10014 
10015 /*
10016  * Device / Hotplug control
10017  */
10018 static int
10019 mptsas_scsi_quiesce(dev_info_t *dip)
10020 {
10021         mptsas_t        *mpt;
10022         scsi_hba_tran_t *tran;
10023 
10024         tran = ddi_get_driver_private(dip);
10025         if (tran == NULL || (mpt = TRAN2MPT(tran)) == NULL)
10026                 return (-1);
10027 
10028         return (mptsas_quiesce_bus(mpt));
10029 }
10030 
10031 static int
10032 mptsas_scsi_unquiesce(dev_info_t *dip)
10033 {
10034         mptsas_t                *mpt;
10035         scsi_hba_tran_t *tran;
10036 
10037         tran = ddi_get_driver_private(dip);
10038         if (tran == NULL || (mpt = TRAN2MPT(tran)) == NULL)
10039                 return (-1);
10040 
10041         return (mptsas_unquiesce_bus(mpt));
10042 }
10043 
10044 static int
10045 mptsas_quiesce_bus(mptsas_t *mpt)
10046 {
10047         mptsas_target_t *ptgt = NULL;
10048 
10049         NDBG28(("mptsas_quiesce_bus"));
10050         mutex_enter(&mpt->m_mutex);
10051 
10052         /* Set all the throttles to zero */
10053         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
10054             ptgt = refhash_next(mpt->m_targets, ptgt)) {
10055                 mptsas_set_throttle(mpt, ptgt, HOLD_THROTTLE);
10056         }
10057 
10058         /* If there are any outstanding commands in the queue */
10059         if (mpt->m_ncmds) {
10060                 mpt->m_softstate |= MPTSAS_SS_DRAINING;
10061                 mpt->m_quiesce_timeid = timeout(mptsas_ncmds_checkdrain,
10062                     mpt, drv_sectohz(MPTSAS_QUIESCE_TIMEOUT));
10063                 if (cv_wait_sig(&mpt->m_cv, &mpt->m_mutex) == 0) {
10064                         /*
10065                          * Quiesce has been interrupted
10066                          */
10067                         mpt->m_softstate &= ~MPTSAS_SS_DRAINING;
10068                         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
10069                             ptgt = refhash_next(mpt->m_targets, ptgt)) {
10070                                 mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
10071                         }
10072                         mptsas_restart_hba(mpt);
10073                         if (mpt->m_quiesce_timeid != 0) {
10074                                 timeout_id_t tid = mpt->m_quiesce_timeid;
10075                                 mpt->m_quiesce_timeid = 0;
10076                                 mutex_exit(&mpt->m_mutex);
10077                                 (void) untimeout(tid);
10078                                 return (-1);
10079                         }
10080                         mutex_exit(&mpt->m_mutex);
10081                         return (-1);
10082                 } else {
10083                         /* Bus has been quiesced */
10084                         ASSERT(mpt->m_quiesce_timeid == 0);
10085                         mpt->m_softstate &= ~MPTSAS_SS_DRAINING;
10086                         mpt->m_softstate |= MPTSAS_SS_QUIESCED;
10087                         mutex_exit(&mpt->m_mutex);
10088                         return (0);
10089                 }
10090         }
10091         /* Bus was not busy - QUIESCED */
10092         mutex_exit(&mpt->m_mutex);
10093 
10094         return (0);
10095 }
10096 
10097 static int
10098 mptsas_unquiesce_bus(mptsas_t *mpt)
10099 {
10100         mptsas_target_t *ptgt = NULL;
10101 
10102         NDBG28(("mptsas_unquiesce_bus"));
10103         mutex_enter(&mpt->m_mutex);
10104         mpt->m_softstate &= ~MPTSAS_SS_QUIESCED;
10105         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
10106             ptgt = refhash_next(mpt->m_targets, ptgt)) {
10107                 mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
10108         }
10109         mptsas_restart_hba(mpt);
10110         mutex_exit(&mpt->m_mutex);
10111         return (0);
10112 }
10113 
10114 static void
10115 mptsas_ncmds_checkdrain(void *arg)
10116 {
10117         mptsas_t        *mpt = arg;
10118         mptsas_target_t *ptgt = NULL;
10119 
10120         mutex_enter(&mpt->m_mutex);
10121         if (mpt->m_softstate & MPTSAS_SS_DRAINING) {
10122                 mpt->m_quiesce_timeid = 0;
10123                 if (mpt->m_ncmds == 0) {
10124                         /* Command queue has been drained */
10125                         cv_signal(&mpt->m_cv);
10126                 } else {
10127                         /*
10128                          * The throttle may have been reset because
10129                          * of a SCSI bus reset
10130                          */
10131                         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
10132                             ptgt = refhash_next(mpt->m_targets, ptgt)) {
10133                                 mptsas_set_throttle(mpt, ptgt, HOLD_THROTTLE);
10134                         }
10135 
10136                         mpt->m_quiesce_timeid = timeout(mptsas_ncmds_checkdrain,
10137                             mpt, drv_sectohz(MPTSAS_QUIESCE_TIMEOUT));
10138                 }
10139         }
10140         mutex_exit(&mpt->m_mutex);
10141 }
10142 
10143 /*ARGSUSED*/
10144 static void
10145 mptsas_dump_cmd(mptsas_t *mpt, mptsas_cmd_t *cmd)
10146 {
10147         int     i;
10148         uint8_t *cp = (uchar_t *)cmd->cmd_pkt->pkt_cdbp;
10149         char    buf[128];
10150 
10151         buf[0] = '\0';
10152         NDBG25(("?Cmd (0x%p) dump for Target %d Lun %d:\n", (void *)cmd,
10153             Tgt(cmd), Lun(cmd)));
10154         (void) sprintf(&buf[0], "\tcdb=[");
10155         for (i = 0; i < (int)cmd->cmd_cdblen; i++) {
10156                 (void) sprintf(&buf[strlen(buf)], " 0x%x", *cp++);
10157         }
10158         (void) sprintf(&buf[strlen(buf)], " ]");
10159         NDBG25(("?%s\n", buf));
10160         NDBG25(("?pkt_flags=0x%x pkt_statistics=0x%x pkt_state=0x%x\n",
10161             cmd->cmd_pkt->pkt_flags, cmd->cmd_pkt->pkt_statistics,
10162             cmd->cmd_pkt->pkt_state));
10163         NDBG25(("?pkt_scbp=0x%x cmd_flags=0x%x\n", cmd->cmd_pkt->pkt_scbp ?
10164             *(cmd->cmd_pkt->pkt_scbp) : 0, cmd->cmd_flags));
10165 }
10166 
10167 static void
10168 mptsas_passthru_sge(ddi_acc_handle_t acc_hdl, mptsas_pt_request_t *pt,
10169     pMpi2SGESimple64_t sgep)
10170 {
10171         uint32_t                sge_flags;
10172         uint32_t                data_size, dataout_size;
10173         ddi_dma_cookie_t        data_cookie;
10174         ddi_dma_cookie_t        dataout_cookie;
10175 
10176         data_size = pt->data_size;
10177         dataout_size = pt->dataout_size;
10178         data_cookie = pt->data_cookie;
10179         dataout_cookie = pt->dataout_cookie;
10180 
10181         if (dataout_size) {
10182                 sge_flags = dataout_size |
10183                     ((uint32_t)(MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
10184                     MPI2_SGE_FLAGS_END_OF_BUFFER |
10185                     MPI2_SGE_FLAGS_HOST_TO_IOC |
10186                     MPI2_SGE_FLAGS_64_BIT_ADDRESSING) <<
10187                     MPI2_SGE_FLAGS_SHIFT);
10188                 ddi_put32(acc_hdl, &sgep->FlagsLength, sge_flags);
10189                 ddi_put32(acc_hdl, &sgep->Address.Low,
10190                     (uint32_t)(dataout_cookie.dmac_laddress &
10191                     0xffffffffull));
10192                 ddi_put32(acc_hdl, &sgep->Address.High,
10193                     (uint32_t)(dataout_cookie.dmac_laddress
10194                     >> 32));
10195                 sgep++;
10196         }
10197         sge_flags = data_size;
10198         sge_flags |= ((uint32_t)(MPI2_SGE_FLAGS_SIMPLE_ELEMENT |
10199             MPI2_SGE_FLAGS_LAST_ELEMENT |
10200             MPI2_SGE_FLAGS_END_OF_BUFFER |
10201             MPI2_SGE_FLAGS_END_OF_LIST |
10202             MPI2_SGE_FLAGS_64_BIT_ADDRESSING) <<
10203             MPI2_SGE_FLAGS_SHIFT);
10204         if (pt->direction == MPTSAS_PASS_THRU_DIRECTION_WRITE) {
10205                 sge_flags |= ((uint32_t)(MPI2_SGE_FLAGS_HOST_TO_IOC) <<
10206                     MPI2_SGE_FLAGS_SHIFT);
10207         } else {
10208                 sge_flags |= ((uint32_t)(MPI2_SGE_FLAGS_IOC_TO_HOST) <<
10209                     MPI2_SGE_FLAGS_SHIFT);
10210         }
10211         ddi_put32(acc_hdl, &sgep->FlagsLength,
10212             sge_flags);
10213         ddi_put32(acc_hdl, &sgep->Address.Low,
10214             (uint32_t)(data_cookie.dmac_laddress &
10215             0xffffffffull));
10216         ddi_put32(acc_hdl, &sgep->Address.High,
10217             (uint32_t)(data_cookie.dmac_laddress >> 32));
10218 }
10219 
10220 static void
10221 mptsas_passthru_ieee_sge(ddi_acc_handle_t acc_hdl, mptsas_pt_request_t *pt,
10222     pMpi2IeeeSgeSimple64_t ieeesgep)
10223 {
10224         uint8_t                 sge_flags;
10225         uint32_t                data_size, dataout_size;
10226         ddi_dma_cookie_t        data_cookie;
10227         ddi_dma_cookie_t        dataout_cookie;
10228 
10229         data_size = pt->data_size;
10230         dataout_size = pt->dataout_size;
10231         data_cookie = pt->data_cookie;
10232         dataout_cookie = pt->dataout_cookie;
10233 
10234         sge_flags = (MPI2_IEEE_SGE_FLAGS_SIMPLE_ELEMENT |
10235             MPI2_IEEE_SGE_FLAGS_SYSTEM_ADDR);
10236         if (dataout_size) {
10237                 ddi_put32(acc_hdl, &ieeesgep->Length, dataout_size);
10238                 ddi_put32(acc_hdl, &ieeesgep->Address.Low,
10239                     (uint32_t)(dataout_cookie.dmac_laddress &
10240                     0xffffffffull));
10241                 ddi_put32(acc_hdl, &ieeesgep->Address.High,
10242                     (uint32_t)(dataout_cookie.dmac_laddress >> 32));
10243                 ddi_put8(acc_hdl, &ieeesgep->Flags, sge_flags);
10244                 ieeesgep++;
10245         }
10246         sge_flags |= MPI25_IEEE_SGE_FLAGS_END_OF_LIST;
10247         ddi_put32(acc_hdl, &ieeesgep->Length, data_size);
10248         ddi_put32(acc_hdl, &ieeesgep->Address.Low,
10249             (uint32_t)(data_cookie.dmac_laddress & 0xffffffffull));
10250         ddi_put32(acc_hdl, &ieeesgep->Address.High,
10251             (uint32_t)(data_cookie.dmac_laddress >> 32));
10252         ddi_put8(acc_hdl, &ieeesgep->Flags, sge_flags);
10253 }
10254 
10255 static void
10256 mptsas_start_passthru(mptsas_t *mpt, mptsas_cmd_t *cmd)
10257 {
10258         caddr_t                 memp;
10259         pMPI2RequestHeader_t    request_hdrp;
10260         struct scsi_pkt         *pkt = cmd->cmd_pkt;
10261         mptsas_pt_request_t     *pt = pkt->pkt_ha_private;
10262         uint32_t                request_size;
10263         uint32_t                i;
10264         uint64_t                request_desc = 0;
10265         uint8_t                 desc_type;
10266         uint16_t                SMID;
10267         uint8_t                 *request, function;
10268         ddi_dma_handle_t        dma_hdl = mpt->m_dma_req_frame_hdl;
10269         ddi_acc_handle_t        acc_hdl = mpt->m_acc_req_frame_hdl;
10270 
10271         desc_type = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
10272 
10273         request = pt->request;
10274         request_size = pt->request_size;
10275 
10276         SMID = cmd->cmd_slot;
10277 
10278         /*
10279          * Store the passthrough message in memory location
10280          * corresponding to our slot number
10281          */
10282         memp = mpt->m_req_frame + (mpt->m_req_frame_size * SMID);
10283         request_hdrp = (pMPI2RequestHeader_t)memp;
10284         bzero(memp, mpt->m_req_frame_size);
10285 
10286         for (i = 0; i < request_size; i++) {
10287                 bcopy(request + i, memp + i, 1);
10288         }
10289 
10290         NDBG15(("mptsas_start_passthru: Func 0x%x, MsgFlags 0x%x, "
10291             "size=%d, in %d, out %d, SMID %d", request_hdrp->Function,
10292             request_hdrp->MsgFlags, request_size,
10293             pt->data_size, pt->dataout_size, SMID));
10294 
10295         /*
10296          * Add an SGE, even if the length is zero.
10297          */
10298         if (mpt->m_MPI25 && pt->simple == 0) {
10299                 mptsas_passthru_ieee_sge(acc_hdl, pt,
10300                     (pMpi2IeeeSgeSimple64_t)
10301                     ((uint8_t *)request_hdrp + pt->sgl_offset));
10302         } else {
10303                 mptsas_passthru_sge(acc_hdl, pt,
10304                     (pMpi2SGESimple64_t)
10305                     ((uint8_t *)request_hdrp + pt->sgl_offset));
10306         }
10307 
10308         function = request_hdrp->Function;
10309         if ((function == MPI2_FUNCTION_SCSI_IO_REQUEST) ||
10310             (function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
10311                 pMpi2SCSIIORequest_t    scsi_io_req;
10312                 caddr_t                 arsbuf;
10313                 uint8_t                 ars_size;
10314                 uint32_t                ars_dmaaddrlow;
10315 
10316                 NDBG15(("mptsas_start_passthru: Is SCSI IO Req"));
10317                 scsi_io_req = (pMpi2SCSIIORequest_t)request_hdrp;
10318 
10319                 if (cmd->cmd_extrqslen != 0) {
10320                         /*
10321                          * Mapping of the buffer was done in
10322                          * mptsas_do_passthru().
10323                          * Calculate the DMA address with the same offset.
10324                          */
10325                         arsbuf = cmd->cmd_arq_buf;
10326                         ars_size = cmd->cmd_extrqslen;
10327                         ars_dmaaddrlow = (mpt->m_req_sense_dma_addr +
10328                             ((uintptr_t)arsbuf - (uintptr_t)mpt->m_req_sense)) &
10329                             0xffffffffu;
10330                 } else {
10331                         arsbuf = mpt->m_req_sense +
10332                             (mpt->m_req_sense_size * (SMID-1));
10333                         cmd->cmd_arq_buf = arsbuf;
10334                         ars_size = mpt->m_req_sense_size;
10335                         ars_dmaaddrlow = (mpt->m_req_sense_dma_addr +
10336                             (mpt->m_req_sense_size * (SMID-1))) &
10337                             0xffffffffu;
10338                 }
10339                 bzero(arsbuf, ars_size);
10340 
10341                 ddi_put8(acc_hdl, &scsi_io_req->SenseBufferLength, ars_size);
10342                 ddi_put32(acc_hdl, &scsi_io_req->SenseBufferLowAddress,
10343                     ars_dmaaddrlow);
10344 
10345                 /*
10346                  * Put SGE for data and data_out buffer at the end of
10347                  * scsi_io_request message header.(64 bytes in total)
10348                  * Set SGLOffset0 value
10349                  */
10350                 ddi_put8(acc_hdl, &scsi_io_req->SGLOffset0,
10351                     offsetof(MPI2_SCSI_IO_REQUEST, SGL) / 4);
10352 
10353                 /*
10354                  * Setup descriptor info.  RAID passthrough must use the
10355                  * default request descriptor which is already set, so if this
10356                  * is a SCSI IO request, change the descriptor to SCSI IO.
10357                  */
10358                 if (function == MPI2_FUNCTION_SCSI_IO_REQUEST) {
10359                         desc_type = MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO;
10360                         request_desc = ((uint64_t)ddi_get16(acc_hdl,
10361                             &scsi_io_req->DevHandle) << 48);
10362                 }
10363                 (void) ddi_dma_sync(mpt->m_dma_req_sense_hdl, 0, 0,
10364                     DDI_DMA_SYNC_FORDEV);
10365         }
10366 
10367         /*
10368          * We must wait till the message has been completed before
10369          * beginning the next message so we wait for this one to
10370          * finish.
10371          */
10372         (void) ddi_dma_sync(dma_hdl, 0, 0, DDI_DMA_SYNC_FORDEV);
10373         request_desc |= (SMID << 16) + desc_type;
10374         cmd->cmd_rfm = NULL;
10375         MPTSAS_START_CMD(mpt, request_desc);
10376         if ((mptsas_check_dma_handle(dma_hdl) != DDI_SUCCESS) ||
10377             (mptsas_check_acc_handle(acc_hdl) != DDI_SUCCESS)) {
10378                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
10379         }
10380 }
10381 
10382 typedef void (mptsas_pre_f)(mptsas_t *, mptsas_pt_request_t *);
10383 static mptsas_pre_f     mpi_pre_ioc_facts;
10384 static mptsas_pre_f     mpi_pre_port_facts;
10385 static mptsas_pre_f     mpi_pre_fw_download;
10386 static mptsas_pre_f     mpi_pre_fw_25_download;
10387 static mptsas_pre_f     mpi_pre_fw_upload;
10388 static mptsas_pre_f     mpi_pre_fw_25_upload;
10389 static mptsas_pre_f     mpi_pre_sata_passthrough;
10390 static mptsas_pre_f     mpi_pre_smp_passthrough;
10391 static mptsas_pre_f     mpi_pre_config;
10392 static mptsas_pre_f     mpi_pre_sas_io_unit_control;
10393 static mptsas_pre_f     mpi_pre_scsi_io_req;
10394 
10395 /*
10396  * Prepare the pt for a SAS2 FW_DOWNLOAD request.
10397  */
10398 static void
10399 mpi_pre_fw_download(mptsas_t *mpt, mptsas_pt_request_t *pt)
10400 {
10401         pMpi2FWDownloadTCSGE_t tcsge;
10402         pMpi2FWDownloadRequest req;
10403 
10404         /*
10405          * If SAS3, call separate function.
10406          */
10407         if (mpt->m_MPI25) {
10408                 mpi_pre_fw_25_download(mpt, pt);
10409                 return;
10410         }
10411 
10412         /*
10413          * User requests should come in with the Transaction
10414          * context element where the SGL will go. Putting the
10415          * SGL after that seems to work, but don't really know
10416          * why. Other drivers tend to create an extra SGL and
10417          * refer to the TCE through that.
10418          */
10419         req = (pMpi2FWDownloadRequest)pt->request;
10420         tcsge = (pMpi2FWDownloadTCSGE_t)&req->SGL;
10421         if (tcsge->ContextSize != 0 || tcsge->DetailsLength != 12 ||
10422             tcsge->Flags != MPI2_SGE_FLAGS_TRANSACTION_ELEMENT) {
10423                 mptsas_log(mpt, CE_WARN, "FW Download tce invalid!");
10424         }
10425 
10426         pt->sgl_offset = offsetof(MPI2_FW_DOWNLOAD_REQUEST, SGL) +
10427             sizeof (*tcsge);
10428         if (pt->request_size != pt->sgl_offset)
10429                 NDBG15(("mpi_pre_fw_download(): Incorrect req size, "
10430                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10431                     (int)pt->request_size, (int)pt->sgl_offset,
10432                     (int)pt->dataout_size));
10433         if (pt->data_size < sizeof (MPI2_FW_DOWNLOAD_REPLY))
10434                 NDBG15(("mpi_pre_fw_download(): Incorrect rep size, "
10435                     "0x%x, should be 0x%x", pt->data_size,
10436                     (int)sizeof (MPI2_FW_DOWNLOAD_REPLY)));
10437 }
10438 
10439 /*
10440  * Prepare the pt for a SAS3 FW_DOWNLOAD request.
10441  */
10442 static void
10443 mpi_pre_fw_25_download(mptsas_t *mpt, mptsas_pt_request_t *pt)
10444 {
10445         pMpi2FWDownloadTCSGE_t tcsge;
10446         pMpi2FWDownloadRequest req2;
10447         pMpi25FWDownloadRequest req25;
10448 
10449         /*
10450          * User requests should come in with the Transaction
10451          * context element where the SGL will go. The new firmware
10452          * Doesn't use TCE and has space in the main request for
10453          * this information. So move to the right place.
10454          */
10455         req2 = (pMpi2FWDownloadRequest)pt->request;
10456         req25 = (pMpi25FWDownloadRequest)pt->request;
10457         tcsge = (pMpi2FWDownloadTCSGE_t)&req2->SGL;
10458         if (tcsge->ContextSize != 0 || tcsge->DetailsLength != 12 ||
10459             tcsge->Flags != MPI2_SGE_FLAGS_TRANSACTION_ELEMENT) {
10460                 mptsas_log(mpt, CE_WARN, "FW Download tce invalid!");
10461         }
10462         req25->ImageOffset = tcsge->ImageOffset;
10463         req25->ImageSize = tcsge->ImageSize;
10464 
10465         pt->sgl_offset = offsetof(MPI25_FW_DOWNLOAD_REQUEST, SGL);
10466         if (pt->request_size != pt->sgl_offset)
10467                 NDBG15(("mpi_pre_fw_25_download(): Incorrect req size, "
10468                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10469                     pt->request_size, pt->sgl_offset,
10470                     pt->dataout_size));
10471         if (pt->data_size < sizeof (MPI2_FW_DOWNLOAD_REPLY))
10472                 NDBG15(("mpi_pre_fw_25_download(): Incorrect rep size, "
10473                     "0x%x, should be 0x%x", pt->data_size,
10474                     (int)sizeof (MPI2_FW_UPLOAD_REPLY)));
10475 }
10476 
10477 /*
10478  * Prepare the pt for a SAS2 FW_UPLOAD request.
10479  */
10480 static void
10481 mpi_pre_fw_upload(mptsas_t *mpt, mptsas_pt_request_t *pt)
10482 {
10483         pMpi2FWUploadTCSGE_t tcsge;
10484         pMpi2FWUploadRequest_t req;
10485 
10486         /*
10487          * If SAS3, call separate function.
10488          */
10489         if (mpt->m_MPI25) {
10490                 mpi_pre_fw_25_upload(mpt, pt);
10491                 return;
10492         }
10493 
10494         /*
10495          * User requests should come in with the Transaction
10496          * context element where the SGL will go. Putting the
10497          * SGL after that seems to work, but don't really know
10498          * why. Other drivers tend to create an extra SGL and
10499          * refer to the TCE through that.
10500          */
10501         req = (pMpi2FWUploadRequest_t)pt->request;
10502         tcsge = (pMpi2FWUploadTCSGE_t)&req->SGL;
10503         if (tcsge->ContextSize != 0 || tcsge->DetailsLength != 12 ||
10504             tcsge->Flags != MPI2_SGE_FLAGS_TRANSACTION_ELEMENT) {
10505                 mptsas_log(mpt, CE_WARN, "FW Upload tce invalid!");
10506         }
10507 
10508         pt->sgl_offset = offsetof(MPI2_FW_UPLOAD_REQUEST, SGL) +
10509             sizeof (*tcsge);
10510         if (pt->request_size != pt->sgl_offset)
10511                 NDBG15(("mpi_pre_fw_upload(): Incorrect req size, "
10512                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10513                     pt->request_size, pt->sgl_offset,
10514                     pt->dataout_size));
10515         if (pt->data_size < sizeof (MPI2_FW_UPLOAD_REPLY))
10516                 NDBG15(("mpi_pre_fw_upload(): Incorrect rep size, "
10517                     "0x%x, should be 0x%x", pt->data_size,
10518                     (int)sizeof (MPI2_FW_UPLOAD_REPLY)));
10519 }
10520 
10521 /*
10522  * Prepare the pt a SAS3 FW_UPLOAD request.
10523  */
10524 static void
10525 mpi_pre_fw_25_upload(mptsas_t *mpt, mptsas_pt_request_t *pt)
10526 {
10527         pMpi2FWUploadTCSGE_t tcsge;
10528         pMpi2FWUploadRequest_t req2;
10529         pMpi25FWUploadRequest_t req25;
10530 
10531         /*
10532          * User requests should come in with the Transaction
10533          * context element where the SGL will go. The new firmware
10534          * Doesn't use TCE and has space in the main request for
10535          * this information. So move to the right place.
10536          */
10537         req2 = (pMpi2FWUploadRequest_t)pt->request;
10538         req25 = (pMpi25FWUploadRequest_t)pt->request;
10539         tcsge = (pMpi2FWUploadTCSGE_t)&req2->SGL;
10540         if (tcsge->ContextSize != 0 || tcsge->DetailsLength != 12 ||
10541             tcsge->Flags != MPI2_SGE_FLAGS_TRANSACTION_ELEMENT) {
10542                 mptsas_log(mpt, CE_WARN, "FW Upload tce invalid!");
10543         }
10544         req25->ImageOffset = tcsge->ImageOffset;
10545         req25->ImageSize = tcsge->ImageSize;
10546 
10547         pt->sgl_offset = offsetof(MPI25_FW_UPLOAD_REQUEST, SGL);
10548         if (pt->request_size != pt->sgl_offset)
10549                 NDBG15(("mpi_pre_fw_25_upload(): Incorrect req size, "
10550                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10551                     pt->request_size, pt->sgl_offset,
10552                     pt->dataout_size));
10553         if (pt->data_size < sizeof (MPI2_FW_UPLOAD_REPLY))
10554                 NDBG15(("mpi_pre_fw_25_upload(): Incorrect rep size, "
10555                     "0x%x, should be 0x%x", pt->data_size,
10556                     (int)sizeof (MPI2_FW_UPLOAD_REPLY)));
10557 }
10558 
10559 /*
10560  * Prepare the pt for an IOC_FACTS request.
10561  */
10562 static void
10563 mpi_pre_ioc_facts(mptsas_t *mpt, mptsas_pt_request_t *pt)
10564 {
10565 #ifndef __lock_lint
10566         _NOTE(ARGUNUSED(mpt))
10567 #endif
10568         if (pt->request_size != sizeof (MPI2_IOC_FACTS_REQUEST))
10569                 NDBG15(("mpi_pre_ioc_facts(): Incorrect req size, "
10570                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10571                     pt->request_size,
10572                     (int)sizeof (MPI2_IOC_FACTS_REQUEST),
10573                     pt->dataout_size));
10574         if (pt->data_size != sizeof (MPI2_IOC_FACTS_REPLY))
10575                 NDBG15(("mpi_pre_ioc_facts(): Incorrect rep size, "
10576                     "0x%x, should be 0x%x", pt->data_size,
10577                     (int)sizeof (MPI2_IOC_FACTS_REPLY)));
10578         pt->sgl_offset = (uint16_t)pt->request_size;
10579 }
10580 
10581 /*
10582  * Prepare the pt for a PORT_FACTS request.
10583  */
10584 static void
10585 mpi_pre_port_facts(mptsas_t *mpt, mptsas_pt_request_t *pt)
10586 {
10587 #ifndef __lock_lint
10588         _NOTE(ARGUNUSED(mpt))
10589 #endif
10590         if (pt->request_size != sizeof (MPI2_PORT_FACTS_REQUEST))
10591                 NDBG15(("mpi_pre_port_facts(): Incorrect req size, "
10592                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10593                     pt->request_size,
10594                     (int)sizeof (MPI2_PORT_FACTS_REQUEST),
10595                     pt->dataout_size));
10596         if (pt->data_size != sizeof (MPI2_PORT_FACTS_REPLY))
10597                 NDBG15(("mpi_pre_port_facts(): Incorrect rep size, "
10598                     "0x%x, should be 0x%x", pt->data_size,
10599                     (int)sizeof (MPI2_PORT_FACTS_REPLY)));
10600         pt->sgl_offset = (uint16_t)pt->request_size;
10601 }
10602 
10603 /*
10604  * Prepare pt for a SATA_PASSTHROUGH request.
10605  */
10606 static void
10607 mpi_pre_sata_passthrough(mptsas_t *mpt, mptsas_pt_request_t *pt)
10608 {
10609 #ifndef __lock_lint
10610         _NOTE(ARGUNUSED(mpt))
10611 #endif
10612         pt->sgl_offset = offsetof(MPI2_SATA_PASSTHROUGH_REQUEST, SGL);
10613         if (pt->request_size != pt->sgl_offset)
10614                 NDBG15(("mpi_pre_sata_passthrough(): Incorrect req size, "
10615                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10616                     pt->request_size, pt->sgl_offset,
10617                     pt->dataout_size));
10618         if (pt->data_size != sizeof (MPI2_SATA_PASSTHROUGH_REPLY))
10619                 NDBG15(("mpi_pre_sata_passthrough(): Incorrect rep size, "
10620                     "0x%x, should be 0x%x", pt->data_size,
10621                     (int)sizeof (MPI2_SATA_PASSTHROUGH_REPLY)));
10622 }
10623 
10624 static void
10625 mpi_pre_smp_passthrough(mptsas_t *mpt, mptsas_pt_request_t *pt)
10626 {
10627 #ifndef __lock_lint
10628         _NOTE(ARGUNUSED(mpt))
10629 #endif
10630         pt->sgl_offset = offsetof(MPI2_SMP_PASSTHROUGH_REQUEST, SGL);
10631         if (pt->request_size != pt->sgl_offset)
10632                 NDBG15(("mpi_pre_smp_passthrough(): Incorrect req size, "
10633                     "0x%x, should be 0x%x, dataoutsz 0x%x",
10634                     pt->request_size, pt->sgl_offset,
10635                     pt->dataout_size));
10636         if (pt->data_size != sizeof (MPI2_SMP_PASSTHROUGH_REPLY))
10637                 NDBG15(("mpi_pre_smp_passthrough(): Incorrect rep size, "
10638                     "0x%x, should be 0x%x", pt->data_size,
10639                     (int)sizeof (MPI2_SMP_PASSTHROUGH_REPLY)));
10640 }
10641 
10642 /*
10643  * Prepare pt for a CONFIG request.
10644  */
10645 static void
10646 mpi_pre_config(mptsas_t *mpt, mptsas_pt_request_t *pt)
10647 {
10648 #ifndef __lock_lint
10649         _NOTE(ARGUNUSED(mpt))
10650 #endif
10651         pt->sgl_offset = offsetof(MPI2_CONFIG_REQUEST, PageBufferSGE);
10652         if (pt->request_size != pt->sgl_offset)
10653                 NDBG15(("mpi_pre_config(): Incorrect req size, 0x%x, "
10654                     "should be 0x%x, dataoutsz 0x%x", pt->request_size,
10655                     pt->sgl_offset, pt->dataout_size));
10656         if (pt->data_size != sizeof (MPI2_CONFIG_REPLY))
10657                 NDBG15(("mpi_pre_config(): Incorrect rep size, 0x%x, "
10658                     "should be 0x%x", pt->data_size,
10659                     (int)sizeof (MPI2_CONFIG_REPLY)));
10660         pt->simple = 1;
10661 }
10662 
10663 /*
10664  * Prepare pt for a SCSI_IO_REQ request.
10665  */
10666 static void
10667 mpi_pre_scsi_io_req(mptsas_t *mpt, mptsas_pt_request_t *pt)
10668 {
10669 #ifndef __lock_lint
10670         _NOTE(ARGUNUSED(mpt))
10671 #endif
10672         pt->sgl_offset = offsetof(MPI2_SCSI_IO_REQUEST, SGL);
10673         if (pt->request_size != pt->sgl_offset)
10674                 NDBG15(("mpi_pre_config(): Incorrect req size, 0x%x, "
10675                     "should be 0x%x, dataoutsz 0x%x", pt->request_size,
10676                     pt->sgl_offset,
10677                     pt->dataout_size));
10678         if (pt->data_size != sizeof (MPI2_SCSI_IO_REPLY))
10679                 NDBG15(("mpi_pre_config(): Incorrect rep size, 0x%x, "
10680                     "should be 0x%x", pt->data_size,
10681                     (int)sizeof (MPI2_SCSI_IO_REPLY)));
10682 }
10683 
10684 /*
10685  * Prepare the mptsas_cmd for a SAS_IO_UNIT_CONTROL request.
10686  */
10687 static void
10688 mpi_pre_sas_io_unit_control(mptsas_t *mpt, mptsas_pt_request_t *pt)
10689 {
10690 #ifndef __lock_lint
10691         _NOTE(ARGUNUSED(mpt))
10692 #endif
10693         pt->sgl_offset = (uint16_t)pt->request_size;
10694 }
10695 
10696 /*
10697  * A set of functions to prepare an mptsas_cmd for the various
10698  * supported requests.
10699  */
10700 static struct mptsas_func {
10701         U8              Function;
10702         char            *Name;
10703         mptsas_pre_f    *f_pre;
10704 } mptsas_func_list[] = {
10705         { MPI2_FUNCTION_IOC_FACTS, "IOC_FACTS",         mpi_pre_ioc_facts },
10706         { MPI2_FUNCTION_PORT_FACTS, "PORT_FACTS",       mpi_pre_port_facts },
10707         { MPI2_FUNCTION_FW_DOWNLOAD, "FW_DOWNLOAD",     mpi_pre_fw_download },
10708         { MPI2_FUNCTION_FW_UPLOAD, "FW_UPLOAD",         mpi_pre_fw_upload },
10709         { MPI2_FUNCTION_SATA_PASSTHROUGH, "SATA_PASSTHROUGH",
10710             mpi_pre_sata_passthrough },
10711         { MPI2_FUNCTION_SMP_PASSTHROUGH, "SMP_PASSTHROUGH",
10712             mpi_pre_smp_passthrough},
10713         { MPI2_FUNCTION_SCSI_IO_REQUEST, "SCSI_IO_REQUEST",
10714             mpi_pre_scsi_io_req},
10715         { MPI2_FUNCTION_CONFIG, "CONFIG",               mpi_pre_config},
10716         { MPI2_FUNCTION_SAS_IO_UNIT_CONTROL, "SAS_IO_UNIT_CONTROL",
10717             mpi_pre_sas_io_unit_control },
10718         { 0xFF, NULL,                           NULL } /* list end */
10719 };
10720 
10721 static void
10722 mptsas_prep_sgl_offset(mptsas_t *mpt, mptsas_pt_request_t *pt)
10723 {
10724         pMPI2RequestHeader_t    hdr;
10725         struct mptsas_func      *f;
10726 
10727         hdr = (pMPI2RequestHeader_t)pt->request;
10728 
10729         for (f = mptsas_func_list; f->f_pre != NULL; f++) {
10730                 if (hdr->Function == f->Function) {
10731                         f->f_pre(mpt, pt);
10732                         NDBG15(("mptsas_prep_sgl_offset: Function %s,"
10733                             " sgl_offset 0x%x", f->Name,
10734                             pt->sgl_offset));
10735                         return;
10736                 }
10737         }
10738         NDBG15(("mptsas_prep_sgl_offset: Unknown Function 0x%02x,"
10739             " returning req_size 0x%x for sgl_offset",
10740             hdr->Function, pt->request_size));
10741         pt->sgl_offset = (uint16_t)pt->request_size;
10742 }
10743 
10744 
10745 static int
10746 mptsas_do_passthru(mptsas_t *mpt, uint8_t *request, uint8_t *reply,
10747     uint8_t *data, uint32_t request_size, uint32_t reply_size,
10748     uint32_t data_size, uint32_t direction, uint8_t *dataout,
10749     uint32_t dataout_size, short timeout, int mode)
10750 {
10751         mptsas_pt_request_t             pt;
10752         mptsas_dma_alloc_state_t        data_dma_state;
10753         mptsas_dma_alloc_state_t        dataout_dma_state;
10754         caddr_t                         memp;
10755         mptsas_cmd_t                    *cmd = NULL;
10756         struct scsi_pkt                 *pkt;
10757         uint32_t                        reply_len = 0, sense_len = 0;
10758         pMPI2RequestHeader_t            request_hdrp;
10759         pMPI2RequestHeader_t            request_msg;
10760         pMPI2DefaultReply_t             reply_msg;
10761         Mpi2SCSIIOReply_t               rep_msg;
10762         int                             rvalue;
10763         int                             i, status = 0, pt_flags = 0, rv = 0;
10764         uint8_t                         function;
10765 
10766         ASSERT(mutex_owned(&mpt->m_mutex));
10767 
10768         reply_msg = (pMPI2DefaultReply_t)(&rep_msg);
10769         bzero(reply_msg, sizeof (MPI2_DEFAULT_REPLY));
10770         request_msg = kmem_zalloc(request_size, KM_SLEEP);
10771 
10772         mutex_exit(&mpt->m_mutex);
10773         /*
10774          * copy in the request buffer since it could be used by
10775          * another thread when the pt request into waitq
10776          */
10777         if (ddi_copyin(request, request_msg, request_size, mode)) {
10778                 mutex_enter(&mpt->m_mutex);
10779                 status = EFAULT;
10780                 mptsas_log(mpt, CE_WARN, "failed to copy request data");
10781                 goto out;
10782         }
10783         NDBG27(("mptsas_do_passthru: mode 0x%x, size 0x%x, Func 0x%x",
10784             mode, request_size, request_msg->Function));
10785         mutex_enter(&mpt->m_mutex);
10786 
10787         function = request_msg->Function;
10788         if (function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
10789                 pMpi2SCSITaskManagementRequest_t        task;
10790                 task = (pMpi2SCSITaskManagementRequest_t)request_msg;
10791                 mptsas_setup_bus_reset_delay(mpt);
10792                 rv = mptsas_ioc_task_management(mpt, task->TaskType,
10793                     task->DevHandle, (int)task->LUN[1], reply, reply_size,
10794                     mode);
10795 
10796                 if (rv != TRUE) {
10797                         status = EIO;
10798                         mptsas_log(mpt, CE_WARN, "task management failed");
10799                 }
10800                 goto out;
10801         }
10802 
10803         if (data_size != 0) {
10804                 data_dma_state.size = data_size;
10805                 if (mptsas_dma_alloc(mpt, &data_dma_state) != DDI_SUCCESS) {
10806                         status = ENOMEM;
10807                         mptsas_log(mpt, CE_WARN, "failed to alloc DMA "
10808                             "resource");
10809                         goto out;
10810                 }
10811                 pt_flags |= MPTSAS_DATA_ALLOCATED;
10812                 if (direction == MPTSAS_PASS_THRU_DIRECTION_WRITE) {
10813                         mutex_exit(&mpt->m_mutex);
10814                         for (i = 0; i < data_size; i++) {
10815                                 if (ddi_copyin(data + i, (uint8_t *)
10816                                     data_dma_state.memp + i, 1, mode)) {
10817                                         mutex_enter(&mpt->m_mutex);
10818                                         status = EFAULT;
10819                                         mptsas_log(mpt, CE_WARN, "failed to "
10820                                             "copy read data");
10821                                         goto out;
10822                                 }
10823                         }
10824                         mutex_enter(&mpt->m_mutex);
10825                 }
10826         } else {
10827                 bzero(&data_dma_state, sizeof (data_dma_state));
10828         }
10829 
10830         if (dataout_size != 0) {
10831                 dataout_dma_state.size = dataout_size;
10832                 if (mptsas_dma_alloc(mpt, &dataout_dma_state) != DDI_SUCCESS) {
10833                         status = ENOMEM;
10834                         mptsas_log(mpt, CE_WARN, "failed to alloc DMA "
10835                             "resource");
10836                         goto out;
10837                 }
10838                 pt_flags |= MPTSAS_DATAOUT_ALLOCATED;
10839                 mutex_exit(&mpt->m_mutex);
10840                 for (i = 0; i < dataout_size; i++) {
10841                         if (ddi_copyin(dataout + i, (uint8_t *)
10842                             dataout_dma_state.memp + i, 1, mode)) {
10843                                 mutex_enter(&mpt->m_mutex);
10844                                 mptsas_log(mpt, CE_WARN, "failed to copy out"
10845                                     " data");
10846                                 status = EFAULT;
10847                                 goto out;
10848                         }
10849                 }
10850                 mutex_enter(&mpt->m_mutex);
10851         } else {
10852                 bzero(&dataout_dma_state, sizeof (dataout_dma_state));
10853         }
10854 
10855         if ((rvalue = (mptsas_request_from_pool(mpt, &cmd, &pkt))) == -1) {
10856                 status = EAGAIN;
10857                 mptsas_log(mpt, CE_NOTE, "event ack command pool is full");
10858                 goto out;
10859         }
10860         pt_flags |= MPTSAS_REQUEST_POOL_CMD;
10861 
10862         bzero((caddr_t)cmd, sizeof (*cmd));
10863         bzero((caddr_t)pkt, scsi_pkt_size());
10864         bzero((caddr_t)&pt, sizeof (pt));
10865 
10866         cmd->ioc_cmd_slot = (uint32_t)(rvalue);
10867 
10868         pt.request = (uint8_t *)request_msg;
10869         pt.direction = direction;
10870         pt.simple = 0;
10871         pt.request_size = request_size;
10872         pt.data_size = data_size;
10873         pt.dataout_size = dataout_size;
10874         pt.data_cookie = data_dma_state.cookie;
10875         pt.dataout_cookie = dataout_dma_state.cookie;
10876         mptsas_prep_sgl_offset(mpt, &pt);
10877 
10878         /*
10879          * Form a blank cmd/pkt to store the acknowledgement message
10880          */
10881         pkt->pkt_cdbp                = (opaque_t)&cmd->cmd_cdb[0];
10882         pkt->pkt_scbp                = (opaque_t)&cmd->cmd_scb;
10883         pkt->pkt_ha_private  = (opaque_t)&pt;
10884         pkt->pkt_flags               = FLAG_HEAD;
10885         pkt->pkt_time                = timeout;
10886         cmd->cmd_pkt         = pkt;
10887         cmd->cmd_flags               = CFLAG_CMDIOC | CFLAG_PASSTHRU;
10888 
10889         if ((function == MPI2_FUNCTION_SCSI_IO_REQUEST) ||
10890             (function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
10891                 uint8_t                 com, cdb_group_id;
10892                 boolean_t               ret;
10893 
10894                 pkt->pkt_cdbp = ((pMpi2SCSIIORequest_t)request_msg)->CDB.CDB32;
10895                 com = pkt->pkt_cdbp[0];
10896                 cdb_group_id = CDB_GROUPID(com);
10897                 switch (cdb_group_id) {
10898                 case CDB_GROUPID_0: cmd->cmd_cdblen = CDB_GROUP0; break;
10899                 case CDB_GROUPID_1: cmd->cmd_cdblen = CDB_GROUP1; break;
10900                 case CDB_GROUPID_2: cmd->cmd_cdblen = CDB_GROUP2; break;
10901                 case CDB_GROUPID_4: cmd->cmd_cdblen = CDB_GROUP4; break;
10902                 case CDB_GROUPID_5: cmd->cmd_cdblen = CDB_GROUP5; break;
10903                 default:
10904                         NDBG27(("mptsas_do_passthru: SCSI_IO, reserved "
10905                             "CDBGROUP 0x%x requested!", cdb_group_id));
10906                         break;
10907                 }
10908 
10909                 reply_len = sizeof (MPI2_SCSI_IO_REPLY);
10910                 sense_len = reply_size - reply_len;
10911                 ret = mptsas_cmdarqsize(mpt, cmd, sense_len, KM_SLEEP);
10912                 VERIFY(ret == B_TRUE);
10913         } else {
10914                 reply_len = reply_size;
10915                 sense_len = 0;
10916         }
10917 
10918         NDBG27(("mptsas_do_passthru: %s, dsz 0x%x, dosz 0x%x, replen 0x%x, "
10919             "snslen 0x%x",
10920             (direction == MPTSAS_PASS_THRU_DIRECTION_WRITE)?"Write":"Read",
10921             data_size, dataout_size, reply_len, sense_len));
10922 
10923         /*
10924          * Save the command in a slot
10925          */
10926         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
10927                 /*
10928                  * Once passthru command get slot, set cmd_flags
10929                  * CFLAG_PREPARED.
10930                  */
10931                 cmd->cmd_flags |= CFLAG_PREPARED;
10932                 mptsas_start_passthru(mpt, cmd);
10933         } else {
10934                 mptsas_waitq_add(mpt, cmd);
10935         }
10936 
10937         while ((cmd->cmd_flags & CFLAG_FINISHED) == 0) {
10938                 cv_wait(&mpt->m_passthru_cv, &mpt->m_mutex);
10939         }
10940 
10941         NDBG27(("mptsas_do_passthru: Cmd complete, flags 0x%x, rfm 0x%x "
10942             "pktreason 0x%x", cmd->cmd_flags, cmd->cmd_rfm,
10943             pkt->pkt_reason));
10944 
10945         if (cmd->cmd_flags & CFLAG_PREPARED) {
10946                 memp = mpt->m_req_frame + (mpt->m_req_frame_size *
10947                     cmd->cmd_slot);
10948                 request_hdrp = (pMPI2RequestHeader_t)memp;
10949         }
10950 
10951         if (cmd->cmd_flags & CFLAG_TIMEOUT) {
10952                 status = ETIMEDOUT;
10953                 mptsas_log(mpt, CE_WARN, "passthrough command timeout");
10954                 pt_flags |= MPTSAS_CMD_TIMEOUT;
10955                 goto out;
10956         }
10957 
10958         if (cmd->cmd_rfm) {
10959                 /*
10960                  * cmd_rfm is zero means the command reply is a CONTEXT
10961                  * reply and no PCI Write to post the free reply SMFA
10962                  * because no reply message frame is used.
10963                  * cmd_rfm is non-zero means the reply is a ADDRESS
10964                  * reply and reply message frame is used.
10965                  */
10966                 pt_flags |= MPTSAS_ADDRESS_REPLY;
10967                 (void) ddi_dma_sync(mpt->m_dma_reply_frame_hdl, 0, 0,
10968                     DDI_DMA_SYNC_FORCPU);
10969                 reply_msg = (pMPI2DefaultReply_t)
10970                     (mpt->m_reply_frame + (cmd->cmd_rfm -
10971                     (mpt->m_reply_frame_dma_addr & 0xffffffffu)));
10972         }
10973 
10974         mptsas_fma_check(mpt, cmd);
10975         if (pkt->pkt_reason == CMD_TRAN_ERR) {
10976                 status = EAGAIN;
10977                 mptsas_log(mpt, CE_WARN, "passthru fma error");
10978                 goto out;
10979         }
10980         if (pkt->pkt_reason == CMD_RESET) {
10981                 status = EAGAIN;
10982                 mptsas_log(mpt, CE_WARN, "ioc reset abort passthru");
10983                 goto out;
10984         }
10985 
10986         if (pkt->pkt_reason == CMD_INCOMPLETE) {
10987                 status = EIO;
10988                 mptsas_log(mpt, CE_WARN, "passthrough command incomplete");
10989                 goto out;
10990         }
10991 
10992         mutex_exit(&mpt->m_mutex);
10993         if (cmd->cmd_flags & CFLAG_PREPARED) {
10994                 function = request_hdrp->Function;
10995                 if ((function == MPI2_FUNCTION_SCSI_IO_REQUEST) ||
10996                     (function == MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH)) {
10997                         reply_len = sizeof (MPI2_SCSI_IO_REPLY);
10998                         sense_len = cmd->cmd_extrqslen ?
10999                             min(sense_len, cmd->cmd_extrqslen) :
11000                             min(sense_len, cmd->cmd_rqslen);
11001                 } else {
11002                         reply_len = reply_size;
11003                         sense_len = 0;
11004                 }
11005 
11006                 for (i = 0; i < reply_len; i++) {
11007                         if (ddi_copyout((uint8_t *)reply_msg + i, reply + i, 1,
11008                             mode)) {
11009                                 mutex_enter(&mpt->m_mutex);
11010                                 status = EFAULT;
11011                                 mptsas_log(mpt, CE_WARN, "failed to copy out "
11012                                     "reply data");
11013                                 goto out;
11014                         }
11015                 }
11016                 for (i = 0; i < sense_len; i++) {
11017                         if (ddi_copyout((uint8_t *)request_hdrp + 64 + i,
11018                             reply + reply_len + i, 1, mode)) {
11019                                 mutex_enter(&mpt->m_mutex);
11020                                 status = EFAULT;
11021                                 mptsas_log(mpt, CE_WARN, "failed to copy out "
11022                                     "sense data");
11023                                 goto out;
11024                         }
11025                 }
11026         }
11027 
11028         if (data_size) {
11029                 if (direction != MPTSAS_PASS_THRU_DIRECTION_WRITE) {
11030                         (void) ddi_dma_sync(data_dma_state.handle, 0, 0,
11031                             DDI_DMA_SYNC_FORCPU);
11032                         for (i = 0; i < data_size; i++) {
11033                                 if (ddi_copyout((uint8_t *)(
11034                                     data_dma_state.memp + i), data + i,  1,
11035                                     mode)) {
11036                                         mutex_enter(&mpt->m_mutex);
11037                                         status = EFAULT;
11038                                         mptsas_log(mpt, CE_WARN, "failed to "
11039                                             "copy out the reply data");
11040                                         goto out;
11041                                 }
11042                         }
11043                 }
11044         }
11045         mutex_enter(&mpt->m_mutex);
11046 out:
11047         /*
11048          * Put the reply frame back on the free queue, increment the free
11049          * index, and write the new index to the free index register.  But only
11050          * if this reply is an ADDRESS reply.
11051          */
11052         if (pt_flags & MPTSAS_ADDRESS_REPLY) {
11053                 ddi_put32(mpt->m_acc_free_queue_hdl,
11054                     &((uint32_t *)(void *)mpt->m_free_queue)[mpt->m_free_index],
11055                     cmd->cmd_rfm);
11056                 (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
11057                     DDI_DMA_SYNC_FORDEV);
11058                 if (++mpt->m_free_index == mpt->m_free_queue_depth) {
11059                         mpt->m_free_index = 0;
11060                 }
11061                 ddi_put32(mpt->m_datap, &mpt->m_reg->ReplyFreeHostIndex,
11062                     mpt->m_free_index);
11063         }
11064         if (cmd) {
11065                 if (cmd->cmd_extrqslen != 0) {
11066                         rmfree(mpt->m_erqsense_map, cmd->cmd_extrqschunks,
11067                             cmd->cmd_extrqsidx + 1);
11068                 }
11069                 if (cmd->cmd_flags & CFLAG_PREPARED) {
11070                         mptsas_remove_cmd(mpt, cmd);
11071                         pt_flags &= (~MPTSAS_REQUEST_POOL_CMD);
11072                 }
11073         }
11074         if (pt_flags & MPTSAS_REQUEST_POOL_CMD)
11075                 mptsas_return_to_pool(mpt, cmd);
11076         if (pt_flags & MPTSAS_DATA_ALLOCATED) {
11077                 if (mptsas_check_dma_handle(data_dma_state.handle) !=
11078                     DDI_SUCCESS) {
11079                         ddi_fm_service_impact(mpt->m_dip,
11080                             DDI_SERVICE_UNAFFECTED);
11081                         status = EFAULT;
11082                 }
11083                 mptsas_dma_free(&data_dma_state);
11084         }
11085         if (pt_flags & MPTSAS_DATAOUT_ALLOCATED) {
11086                 if (mptsas_check_dma_handle(dataout_dma_state.handle) !=
11087                     DDI_SUCCESS) {
11088                         ddi_fm_service_impact(mpt->m_dip,
11089                             DDI_SERVICE_UNAFFECTED);
11090                         status = EFAULT;
11091                 }
11092                 mptsas_dma_free(&dataout_dma_state);
11093         }
11094         if (pt_flags & MPTSAS_CMD_TIMEOUT) {
11095                 if ((mptsas_restart_ioc(mpt)) == DDI_FAILURE) {
11096                         mptsas_log(mpt, CE_WARN, "mptsas_restart_ioc failed");
11097                 }
11098         }
11099         if (request_msg)
11100                 kmem_free(request_msg, request_size);
11101         NDBG27(("mptsas_do_passthru: Done status 0x%x", status));
11102 
11103         return (status);
11104 }
11105 
11106 static int
11107 mptsas_pass_thru(mptsas_t *mpt, mptsas_pass_thru_t *data, int mode)
11108 {
11109         /*
11110          * If timeout is 0, set timeout to default of 60 seconds.
11111          */
11112         if (data->Timeout == 0) {
11113                 data->Timeout = MPTSAS_PASS_THRU_TIME_DEFAULT;
11114         }
11115 
11116         if (((data->DataSize == 0) &&
11117             (data->DataDirection == MPTSAS_PASS_THRU_DIRECTION_NONE)) ||
11118             ((data->DataSize != 0) &&
11119             ((data->DataDirection == MPTSAS_PASS_THRU_DIRECTION_READ) ||
11120             (data->DataDirection == MPTSAS_PASS_THRU_DIRECTION_WRITE) ||
11121             ((data->DataDirection == MPTSAS_PASS_THRU_DIRECTION_BOTH) &&
11122             (data->DataOutSize != 0))))) {
11123                 if (data->DataDirection == MPTSAS_PASS_THRU_DIRECTION_BOTH) {
11124                         data->DataDirection = MPTSAS_PASS_THRU_DIRECTION_READ;
11125                 } else {
11126                         data->DataOutSize = 0;
11127                 }
11128                 /*
11129                  * Send passthru request messages
11130                  */
11131                 return (mptsas_do_passthru(mpt,
11132                     (uint8_t *)((uintptr_t)data->PtrRequest),
11133                     (uint8_t *)((uintptr_t)data->PtrReply),
11134                     (uint8_t *)((uintptr_t)data->PtrData),
11135                     data->RequestSize, data->ReplySize,
11136                     data->DataSize, data->DataDirection,
11137                     (uint8_t *)((uintptr_t)data->PtrDataOut),
11138                     data->DataOutSize, data->Timeout, mode));
11139         } else {
11140                 return (EINVAL);
11141         }
11142 }
11143 
11144 static uint8_t
11145 mptsas_get_fw_diag_buffer_number(mptsas_t *mpt, uint32_t unique_id)
11146 {
11147         uint8_t index;
11148 
11149         for (index = 0; index < MPI2_DIAG_BUF_TYPE_COUNT; index++) {
11150                 if (mpt->m_fw_diag_buffer_list[index].unique_id == unique_id) {
11151                         return (index);
11152                 }
11153         }
11154 
11155         return (MPTSAS_FW_DIAGNOSTIC_UID_NOT_FOUND);
11156 }
11157 
11158 static void
11159 mptsas_start_diag(mptsas_t *mpt, mptsas_cmd_t *cmd)
11160 {
11161         pMpi2DiagBufferPostRequest_t    pDiag_post_msg;
11162         pMpi2DiagReleaseRequest_t       pDiag_release_msg;
11163         struct scsi_pkt                 *pkt = cmd->cmd_pkt;
11164         mptsas_diag_request_t           *diag = pkt->pkt_ha_private;
11165         uint32_t                        i;
11166         uint64_t                        request_desc;
11167 
11168         ASSERT(mutex_owned(&mpt->m_mutex));
11169 
11170         /*
11171          * Form the diag message depending on the post or release function.
11172          */
11173         if (diag->function == MPI2_FUNCTION_DIAG_BUFFER_POST) {
11174                 pDiag_post_msg = (pMpi2DiagBufferPostRequest_t)
11175                     (mpt->m_req_frame + (mpt->m_req_frame_size *
11176                     cmd->cmd_slot));
11177                 bzero(pDiag_post_msg, mpt->m_req_frame_size);
11178                 ddi_put8(mpt->m_acc_req_frame_hdl, &pDiag_post_msg->Function,
11179                     diag->function);
11180                 ddi_put8(mpt->m_acc_req_frame_hdl, &pDiag_post_msg->BufferType,
11181                     diag->pBuffer->buffer_type);
11182                 ddi_put8(mpt->m_acc_req_frame_hdl,
11183                     &pDiag_post_msg->ExtendedType,
11184                     diag->pBuffer->extended_type);
11185                 ddi_put32(mpt->m_acc_req_frame_hdl,
11186                     &pDiag_post_msg->BufferLength,
11187                     diag->pBuffer->buffer_data.size);
11188                 for (i = 0; i < (sizeof (pDiag_post_msg->ProductSpecific) / 4);
11189                     i++) {
11190                         ddi_put32(mpt->m_acc_req_frame_hdl,
11191                             &pDiag_post_msg->ProductSpecific[i],
11192                             diag->pBuffer->product_specific[i]);
11193                 }
11194                 ddi_put32(mpt->m_acc_req_frame_hdl,
11195                     &pDiag_post_msg->BufferAddress.Low,
11196                     (uint32_t)(diag->pBuffer->buffer_data.cookie.dmac_laddress
11197                     & 0xffffffffull));
11198                 ddi_put32(mpt->m_acc_req_frame_hdl,
11199                     &pDiag_post_msg->BufferAddress.High,
11200                     (uint32_t)(diag->pBuffer->buffer_data.cookie.dmac_laddress
11201                     >> 32));
11202         } else {
11203                 pDiag_release_msg = (pMpi2DiagReleaseRequest_t)
11204                     (mpt->m_req_frame + (mpt->m_req_frame_size *
11205                     cmd->cmd_slot));
11206                 bzero(pDiag_release_msg, mpt->m_req_frame_size);
11207                 ddi_put8(mpt->m_acc_req_frame_hdl,
11208                     &pDiag_release_msg->Function, diag->function);
11209                 ddi_put8(mpt->m_acc_req_frame_hdl,
11210                     &pDiag_release_msg->BufferType,
11211                     diag->pBuffer->buffer_type);
11212         }
11213 
11214         /*
11215          * Send the message
11216          */
11217         (void) ddi_dma_sync(mpt->m_dma_req_frame_hdl, 0, 0,
11218             DDI_DMA_SYNC_FORDEV);
11219         request_desc = (cmd->cmd_slot << 16) +
11220             MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
11221         cmd->cmd_rfm = NULL;
11222         MPTSAS_START_CMD(mpt, request_desc);
11223         if ((mptsas_check_dma_handle(mpt->m_dma_req_frame_hdl) !=
11224             DDI_SUCCESS) ||
11225             (mptsas_check_acc_handle(mpt->m_acc_req_frame_hdl) !=
11226             DDI_SUCCESS)) {
11227                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
11228         }
11229 }
11230 
11231 static int
11232 mptsas_post_fw_diag_buffer(mptsas_t *mpt,
11233     mptsas_fw_diagnostic_buffer_t *pBuffer, uint32_t *return_code)
11234 {
11235         mptsas_diag_request_t           diag;
11236         int                             status, slot_num, post_flags = 0;
11237         mptsas_cmd_t                    *cmd = NULL;
11238         struct scsi_pkt                 *pkt;
11239         pMpi2DiagBufferPostReply_t      reply;
11240         uint16_t                        iocstatus;
11241         uint32_t                        iocloginfo, transfer_length;
11242 
11243         /*
11244          * If buffer is not enabled, just leave.
11245          */
11246         *return_code = MPTSAS_FW_DIAG_ERROR_POST_FAILED;
11247         if (!pBuffer->enabled) {
11248                 status = DDI_FAILURE;
11249                 goto out;
11250         }
11251 
11252         /*
11253          * Clear some flags initially.
11254          */
11255         pBuffer->force_release = FALSE;
11256         pBuffer->valid_data = FALSE;
11257         pBuffer->owned_by_firmware = FALSE;
11258 
11259         /*
11260          * Get a cmd buffer from the cmd buffer pool
11261          */
11262         if ((slot_num = (mptsas_request_from_pool(mpt, &cmd, &pkt))) == -1) {
11263                 status = DDI_FAILURE;
11264                 mptsas_log(mpt, CE_NOTE, "command pool is full: Post FW Diag");
11265                 goto out;
11266         }
11267         post_flags |= MPTSAS_REQUEST_POOL_CMD;
11268 
11269         bzero((caddr_t)cmd, sizeof (*cmd));
11270         bzero((caddr_t)pkt, scsi_pkt_size());
11271 
11272         cmd->ioc_cmd_slot = (uint32_t)(slot_num);
11273 
11274         diag.pBuffer = pBuffer;
11275         diag.function = MPI2_FUNCTION_DIAG_BUFFER_POST;
11276 
11277         /*
11278          * Form a blank cmd/pkt to store the acknowledgement message
11279          */
11280         pkt->pkt_ha_private  = (opaque_t)&diag;
11281         pkt->pkt_flags               = FLAG_HEAD;
11282         pkt->pkt_time                = 60;
11283         cmd->cmd_pkt         = pkt;
11284         cmd->cmd_flags               = CFLAG_CMDIOC | CFLAG_FW_DIAG;
11285 
11286         /*
11287          * Save the command in a slot
11288          */
11289         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
11290                 /*
11291                  * Once passthru command get slot, set cmd_flags
11292                  * CFLAG_PREPARED.
11293                  */
11294                 cmd->cmd_flags |= CFLAG_PREPARED;
11295                 mptsas_start_diag(mpt, cmd);
11296         } else {
11297                 mptsas_waitq_add(mpt, cmd);
11298         }
11299 
11300         while ((cmd->cmd_flags & CFLAG_FINISHED) == 0) {
11301                 cv_wait(&mpt->m_fw_diag_cv, &mpt->m_mutex);
11302         }
11303 
11304         if (cmd->cmd_flags & CFLAG_TIMEOUT) {
11305                 status = DDI_FAILURE;
11306                 mptsas_log(mpt, CE_WARN, "Post FW Diag command timeout");
11307                 goto out;
11308         }
11309 
11310         /*
11311          * cmd_rfm points to the reply message if a reply was given.  Check the
11312          * IOCStatus to make sure everything went OK with the FW diag request
11313          * and set buffer flags.
11314          */
11315         if (cmd->cmd_rfm) {
11316                 post_flags |= MPTSAS_ADDRESS_REPLY;
11317                 (void) ddi_dma_sync(mpt->m_dma_reply_frame_hdl, 0, 0,
11318                     DDI_DMA_SYNC_FORCPU);
11319                 reply = (pMpi2DiagBufferPostReply_t)(mpt->m_reply_frame +
11320                     (cmd->cmd_rfm -
11321                     (mpt->m_reply_frame_dma_addr & 0xffffffffu)));
11322 
11323                 /*
11324                  * Get the reply message data
11325                  */
11326                 iocstatus = ddi_get16(mpt->m_acc_reply_frame_hdl,
11327                     &reply->IOCStatus);
11328                 iocloginfo = ddi_get32(mpt->m_acc_reply_frame_hdl,
11329                     &reply->IOCLogInfo);
11330                 transfer_length = ddi_get32(mpt->m_acc_reply_frame_hdl,
11331                     &reply->TransferLength);
11332 
11333                 /*
11334                  * If post failed quit.
11335                  */
11336                 if (iocstatus != MPI2_IOCSTATUS_SUCCESS) {
11337                         status = DDI_FAILURE;
11338                         NDBG13(("post FW Diag Buffer failed: IOCStatus=0x%x, "
11339                             "IOCLogInfo=0x%x, TransferLength=0x%x", iocstatus,
11340                             iocloginfo, transfer_length));
11341                         goto out;
11342                 }
11343 
11344                 /*
11345                  * Post was successful.
11346                  */
11347                 pBuffer->valid_data = TRUE;
11348                 pBuffer->owned_by_firmware = TRUE;
11349                 *return_code = MPTSAS_FW_DIAG_ERROR_SUCCESS;
11350                 status = DDI_SUCCESS;
11351         }
11352 
11353 out:
11354         /*
11355          * Put the reply frame back on the free queue, increment the free
11356          * index, and write the new index to the free index register.  But only
11357          * if this reply is an ADDRESS reply.
11358          */
11359         if (post_flags & MPTSAS_ADDRESS_REPLY) {
11360                 ddi_put32(mpt->m_acc_free_queue_hdl,
11361                     &((uint32_t *)(void *)mpt->m_free_queue)[mpt->m_free_index],
11362                     cmd->cmd_rfm);
11363                 (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
11364                     DDI_DMA_SYNC_FORDEV);
11365                 if (++mpt->m_free_index == mpt->m_free_queue_depth) {
11366                         mpt->m_free_index = 0;
11367                 }
11368                 ddi_put32(mpt->m_datap, &mpt->m_reg->ReplyFreeHostIndex,
11369                     mpt->m_free_index);
11370         }
11371         if (cmd && (cmd->cmd_flags & CFLAG_PREPARED)) {
11372                 mptsas_remove_cmd(mpt, cmd);
11373                 post_flags &= (~MPTSAS_REQUEST_POOL_CMD);
11374         }
11375         if (post_flags & MPTSAS_REQUEST_POOL_CMD) {
11376                 mptsas_return_to_pool(mpt, cmd);
11377         }
11378 
11379         return (status);
11380 }
11381 
11382 static int
11383 mptsas_release_fw_diag_buffer(mptsas_t *mpt,
11384     mptsas_fw_diagnostic_buffer_t *pBuffer, uint32_t *return_code,
11385     uint32_t diag_type)
11386 {
11387         mptsas_diag_request_t   diag;
11388         int                     status, slot_num, rel_flags = 0;
11389         mptsas_cmd_t            *cmd = NULL;
11390         struct scsi_pkt         *pkt;
11391         pMpi2DiagReleaseReply_t reply;
11392         uint16_t                iocstatus;
11393         uint32_t                iocloginfo;
11394 
11395         /*
11396          * If buffer is not enabled, just leave.
11397          */
11398         *return_code = MPTSAS_FW_DIAG_ERROR_RELEASE_FAILED;
11399         if (!pBuffer->enabled) {
11400                 mptsas_log(mpt, CE_NOTE, "This buffer type is not supported "
11401                     "by the IOC");
11402                 status = DDI_FAILURE;
11403                 goto out;
11404         }
11405 
11406         /*
11407          * Clear some flags initially.
11408          */
11409         pBuffer->force_release = FALSE;
11410         pBuffer->valid_data = FALSE;
11411         pBuffer->owned_by_firmware = FALSE;
11412 
11413         /*
11414          * Get a cmd buffer from the cmd buffer pool
11415          */
11416         if ((slot_num = (mptsas_request_from_pool(mpt, &cmd, &pkt))) == -1) {
11417                 status = DDI_FAILURE;
11418                 mptsas_log(mpt, CE_NOTE, "command pool is full: Release FW "
11419                     "Diag");
11420                 goto out;
11421         }
11422         rel_flags |= MPTSAS_REQUEST_POOL_CMD;
11423 
11424         bzero((caddr_t)cmd, sizeof (*cmd));
11425         bzero((caddr_t)pkt, scsi_pkt_size());
11426 
11427         cmd->ioc_cmd_slot = (uint32_t)(slot_num);
11428 
11429         diag.pBuffer = pBuffer;
11430         diag.function = MPI2_FUNCTION_DIAG_RELEASE;
11431 
11432         /*
11433          * Form a blank cmd/pkt to store the acknowledgement message
11434          */
11435         pkt->pkt_ha_private  = (opaque_t)&diag;
11436         pkt->pkt_flags               = FLAG_HEAD;
11437         pkt->pkt_time                = 60;
11438         cmd->cmd_pkt         = pkt;
11439         cmd->cmd_flags               = CFLAG_CMDIOC | CFLAG_FW_DIAG;
11440 
11441         /*
11442          * Save the command in a slot
11443          */
11444         if (mptsas_save_cmd(mpt, cmd) == TRUE) {
11445                 /*
11446                  * Once passthru command get slot, set cmd_flags
11447                  * CFLAG_PREPARED.
11448                  */
11449                 cmd->cmd_flags |= CFLAG_PREPARED;
11450                 mptsas_start_diag(mpt, cmd);
11451         } else {
11452                 mptsas_waitq_add(mpt, cmd);
11453         }
11454 
11455         while ((cmd->cmd_flags & CFLAG_FINISHED) == 0) {
11456                 cv_wait(&mpt->m_fw_diag_cv, &mpt->m_mutex);
11457         }
11458 
11459         if (cmd->cmd_flags & CFLAG_TIMEOUT) {
11460                 status = DDI_FAILURE;
11461                 mptsas_log(mpt, CE_WARN, "Release FW Diag command timeout");
11462                 goto out;
11463         }
11464 
11465         /*
11466          * cmd_rfm points to the reply message if a reply was given.  Check the
11467          * IOCStatus to make sure everything went OK with the FW diag request
11468          * and set buffer flags.
11469          */
11470         if (cmd->cmd_rfm) {
11471                 rel_flags |= MPTSAS_ADDRESS_REPLY;
11472                 (void) ddi_dma_sync(mpt->m_dma_reply_frame_hdl, 0, 0,
11473                     DDI_DMA_SYNC_FORCPU);
11474                 reply = (pMpi2DiagReleaseReply_t)(mpt->m_reply_frame +
11475                     (cmd->cmd_rfm -
11476                     (mpt->m_reply_frame_dma_addr & 0xffffffffu)));
11477 
11478                 /*
11479                  * Get the reply message data
11480                  */
11481                 iocstatus = ddi_get16(mpt->m_acc_reply_frame_hdl,
11482                     &reply->IOCStatus);
11483                 iocloginfo = ddi_get32(mpt->m_acc_reply_frame_hdl,
11484                     &reply->IOCLogInfo);
11485 
11486                 /*
11487                  * If release failed quit.
11488                  */
11489                 if ((iocstatus != MPI2_IOCSTATUS_SUCCESS) ||
11490                     pBuffer->owned_by_firmware) {
11491                         status = DDI_FAILURE;
11492                         NDBG13(("release FW Diag Buffer failed: "
11493                             "IOCStatus=0x%x, IOCLogInfo=0x%x", iocstatus,
11494                             iocloginfo));
11495                         goto out;
11496                 }
11497 
11498                 /*
11499                  * Release was successful.
11500                  */
11501                 *return_code = MPTSAS_FW_DIAG_ERROR_SUCCESS;
11502                 status = DDI_SUCCESS;
11503 
11504                 /*
11505                  * If this was for an UNREGISTER diag type command, clear the
11506                  * unique ID.
11507                  */
11508                 if (diag_type == MPTSAS_FW_DIAG_TYPE_UNREGISTER) {
11509                         pBuffer->unique_id = MPTSAS_FW_DIAG_INVALID_UID;
11510                 }
11511         }
11512 
11513 out:
11514         /*
11515          * Put the reply frame back on the free queue, increment the free
11516          * index, and write the new index to the free index register.  But only
11517          * if this reply is an ADDRESS reply.
11518          */
11519         if (rel_flags & MPTSAS_ADDRESS_REPLY) {
11520                 ddi_put32(mpt->m_acc_free_queue_hdl,
11521                     &((uint32_t *)(void *)mpt->m_free_queue)[mpt->m_free_index],
11522                     cmd->cmd_rfm);
11523                 (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
11524                     DDI_DMA_SYNC_FORDEV);
11525                 if (++mpt->m_free_index == mpt->m_free_queue_depth) {
11526                         mpt->m_free_index = 0;
11527                 }
11528                 ddi_put32(mpt->m_datap, &mpt->m_reg->ReplyFreeHostIndex,
11529                     mpt->m_free_index);
11530         }
11531         if (cmd && (cmd->cmd_flags & CFLAG_PREPARED)) {
11532                 mptsas_remove_cmd(mpt, cmd);
11533                 rel_flags &= (~MPTSAS_REQUEST_POOL_CMD);
11534         }
11535         if (rel_flags & MPTSAS_REQUEST_POOL_CMD) {
11536                 mptsas_return_to_pool(mpt, cmd);
11537         }
11538 
11539         return (status);
11540 }
11541 
11542 static int
11543 mptsas_diag_register(mptsas_t *mpt, mptsas_fw_diag_register_t *diag_register,
11544     uint32_t *return_code)
11545 {
11546         mptsas_fw_diagnostic_buffer_t   *pBuffer;
11547         uint8_t                         extended_type, buffer_type, i;
11548         uint32_t                        buffer_size;
11549         uint32_t                        unique_id;
11550         int                             status;
11551 
11552         ASSERT(mutex_owned(&mpt->m_mutex));
11553 
11554         extended_type = diag_register->ExtendedType;
11555         buffer_type = diag_register->BufferType;
11556         buffer_size = diag_register->RequestedBufferSize;
11557         unique_id = diag_register->UniqueId;
11558 
11559         /*
11560          * Check for valid buffer type
11561          */
11562         if (buffer_type >= MPI2_DIAG_BUF_TYPE_COUNT) {
11563                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11564                 return (DDI_FAILURE);
11565         }
11566 
11567         /*
11568          * Get the current buffer and look up the unique ID.  The unique ID
11569          * should not be found.  If it is, the ID is already in use.
11570          */
11571         i = mptsas_get_fw_diag_buffer_number(mpt, unique_id);
11572         pBuffer = &mpt->m_fw_diag_buffer_list[buffer_type];
11573         if (i != MPTSAS_FW_DIAGNOSTIC_UID_NOT_FOUND) {
11574                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11575                 return (DDI_FAILURE);
11576         }
11577 
11578         /*
11579          * The buffer's unique ID should not be registered yet, and the given
11580          * unique ID cannot be 0.
11581          */
11582         if ((pBuffer->unique_id != MPTSAS_FW_DIAG_INVALID_UID) ||
11583             (unique_id == MPTSAS_FW_DIAG_INVALID_UID)) {
11584                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11585                 return (DDI_FAILURE);
11586         }
11587 
11588         /*
11589          * If this buffer is already posted as immediate, just change owner.
11590          */
11591         if (pBuffer->immediate && pBuffer->owned_by_firmware &&
11592             (pBuffer->unique_id == MPTSAS_FW_DIAG_INVALID_UID)) {
11593                 pBuffer->immediate = FALSE;
11594                 pBuffer->unique_id = unique_id;
11595                 return (DDI_SUCCESS);
11596         }
11597 
11598         /*
11599          * Post a new buffer after checking if it's enabled.  The DMA buffer
11600          * that is allocated will be contiguous (sgl_len = 1).
11601          */
11602         if (!pBuffer->enabled) {
11603                 *return_code = MPTSAS_FW_DIAG_ERROR_NO_BUFFER;
11604                 return (DDI_FAILURE);
11605         }
11606         bzero(&pBuffer->buffer_data, sizeof (mptsas_dma_alloc_state_t));
11607         pBuffer->buffer_data.size = buffer_size;
11608         if (mptsas_dma_alloc(mpt, &pBuffer->buffer_data) != DDI_SUCCESS) {
11609                 mptsas_log(mpt, CE_WARN, "failed to alloc DMA resource for "
11610                     "diag buffer: size = %d bytes", buffer_size);
11611                 *return_code = MPTSAS_FW_DIAG_ERROR_NO_BUFFER;
11612                 return (DDI_FAILURE);
11613         }
11614 
11615         /*
11616          * Copy the given info to the diag buffer and post the buffer.
11617          */
11618         pBuffer->buffer_type = buffer_type;
11619         pBuffer->immediate = FALSE;
11620         if (buffer_type == MPI2_DIAG_BUF_TYPE_TRACE) {
11621                 for (i = 0; i < (sizeof (pBuffer->product_specific) / 4);
11622                     i++) {
11623                         pBuffer->product_specific[i] =
11624                             diag_register->ProductSpecific[i];
11625                 }
11626         }
11627         pBuffer->extended_type = extended_type;
11628         pBuffer->unique_id = unique_id;
11629         status = mptsas_post_fw_diag_buffer(mpt, pBuffer, return_code);
11630 
11631         if (mptsas_check_dma_handle(pBuffer->buffer_data.handle) !=
11632             DDI_SUCCESS) {
11633                 mptsas_log(mpt, CE_WARN, "Check of DMA handle failed in "
11634                     "mptsas_diag_register.");
11635                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
11636                         status = DDI_FAILURE;
11637         }
11638 
11639         /*
11640          * In case there was a failure, free the DMA buffer.
11641          */
11642         if (status == DDI_FAILURE) {
11643                 mptsas_dma_free(&pBuffer->buffer_data);
11644         }
11645 
11646         return (status);
11647 }
11648 
11649 static int
11650 mptsas_diag_unregister(mptsas_t *mpt,
11651     mptsas_fw_diag_unregister_t *diag_unregister, uint32_t *return_code)
11652 {
11653         mptsas_fw_diagnostic_buffer_t   *pBuffer;
11654         uint8_t                         i;
11655         uint32_t                        unique_id;
11656         int                             status;
11657 
11658         ASSERT(mutex_owned(&mpt->m_mutex));
11659 
11660         unique_id = diag_unregister->UniqueId;
11661 
11662         /*
11663          * Get the current buffer and look up the unique ID.  The unique ID
11664          * should be there.
11665          */
11666         i = mptsas_get_fw_diag_buffer_number(mpt, unique_id);
11667         if (i == MPTSAS_FW_DIAGNOSTIC_UID_NOT_FOUND) {
11668                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11669                 return (DDI_FAILURE);
11670         }
11671 
11672         pBuffer = &mpt->m_fw_diag_buffer_list[i];
11673 
11674         /*
11675          * Try to release the buffer from FW before freeing it.  If release
11676          * fails, don't free the DMA buffer in case FW tries to access it
11677          * later.  If buffer is not owned by firmware, can't release it.
11678          */
11679         if (!pBuffer->owned_by_firmware) {
11680                 status = DDI_SUCCESS;
11681         } else {
11682                 status = mptsas_release_fw_diag_buffer(mpt, pBuffer,
11683                     return_code, MPTSAS_FW_DIAG_TYPE_UNREGISTER);
11684         }
11685 
11686         /*
11687          * At this point, return the current status no matter what happens with
11688          * the DMA buffer.
11689          */
11690         pBuffer->unique_id = MPTSAS_FW_DIAG_INVALID_UID;
11691         if (status == DDI_SUCCESS) {
11692                 if (mptsas_check_dma_handle(pBuffer->buffer_data.handle) !=
11693                     DDI_SUCCESS) {
11694                         mptsas_log(mpt, CE_WARN, "Check of DMA handle failed "
11695                             "in mptsas_diag_unregister.");
11696                         ddi_fm_service_impact(mpt->m_dip,
11697                             DDI_SERVICE_UNAFFECTED);
11698                 }
11699                 mptsas_dma_free(&pBuffer->buffer_data);
11700         }
11701 
11702         return (status);
11703 }
11704 
11705 static int
11706 mptsas_diag_query(mptsas_t *mpt, mptsas_fw_diag_query_t *diag_query,
11707     uint32_t *return_code)
11708 {
11709         mptsas_fw_diagnostic_buffer_t   *pBuffer;
11710         uint8_t                         i;
11711         uint32_t                        unique_id;
11712 
11713         ASSERT(mutex_owned(&mpt->m_mutex));
11714 
11715         unique_id = diag_query->UniqueId;
11716 
11717         /*
11718          * If ID is valid, query on ID.
11719          * If ID is invalid, query on buffer type.
11720          */
11721         if (unique_id == MPTSAS_FW_DIAG_INVALID_UID) {
11722                 i = diag_query->BufferType;
11723                 if (i >= MPI2_DIAG_BUF_TYPE_COUNT) {
11724                         *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11725                         return (DDI_FAILURE);
11726                 }
11727         } else {
11728                 i = mptsas_get_fw_diag_buffer_number(mpt, unique_id);
11729                 if (i == MPTSAS_FW_DIAGNOSTIC_UID_NOT_FOUND) {
11730                         *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11731                         return (DDI_FAILURE);
11732                 }
11733         }
11734 
11735         /*
11736          * Fill query structure with the diag buffer info.
11737          */
11738         pBuffer = &mpt->m_fw_diag_buffer_list[i];
11739         diag_query->BufferType = pBuffer->buffer_type;
11740         diag_query->ExtendedType = pBuffer->extended_type;
11741         if (diag_query->BufferType == MPI2_DIAG_BUF_TYPE_TRACE) {
11742                 for (i = 0; i < (sizeof (diag_query->ProductSpecific) / 4);
11743                     i++) {
11744                         diag_query->ProductSpecific[i] =
11745                             pBuffer->product_specific[i];
11746                 }
11747         }
11748         diag_query->TotalBufferSize = pBuffer->buffer_data.size;
11749         diag_query->DriverAddedBufferSize = 0;
11750         diag_query->UniqueId = pBuffer->unique_id;
11751         diag_query->ApplicationFlags = 0;
11752         diag_query->DiagnosticFlags = 0;
11753 
11754         /*
11755          * Set/Clear application flags
11756          */
11757         if (pBuffer->immediate) {
11758                 diag_query->ApplicationFlags &= ~MPTSAS_FW_DIAG_FLAG_APP_OWNED;
11759         } else {
11760                 diag_query->ApplicationFlags |= MPTSAS_FW_DIAG_FLAG_APP_OWNED;
11761         }
11762         if (pBuffer->valid_data || pBuffer->owned_by_firmware) {
11763                 diag_query->ApplicationFlags |=
11764                     MPTSAS_FW_DIAG_FLAG_BUFFER_VALID;
11765         } else {
11766                 diag_query->ApplicationFlags &=
11767                     ~MPTSAS_FW_DIAG_FLAG_BUFFER_VALID;
11768         }
11769         if (pBuffer->owned_by_firmware) {
11770                 diag_query->ApplicationFlags |=
11771                     MPTSAS_FW_DIAG_FLAG_FW_BUFFER_ACCESS;
11772         } else {
11773                 diag_query->ApplicationFlags &=
11774                     ~MPTSAS_FW_DIAG_FLAG_FW_BUFFER_ACCESS;
11775         }
11776 
11777         return (DDI_SUCCESS);
11778 }
11779 
11780 static int
11781 mptsas_diag_read_buffer(mptsas_t *mpt,
11782     mptsas_diag_read_buffer_t *diag_read_buffer, uint8_t *ioctl_buf,
11783     uint32_t *return_code, int ioctl_mode)
11784 {
11785         mptsas_fw_diagnostic_buffer_t   *pBuffer;
11786         uint8_t                         i, *pData;
11787         uint32_t                        unique_id, byte;
11788         int                             status;
11789 
11790         ASSERT(mutex_owned(&mpt->m_mutex));
11791 
11792         unique_id = diag_read_buffer->UniqueId;
11793 
11794         /*
11795          * Get the current buffer and look up the unique ID.  The unique ID
11796          * should be there.
11797          */
11798         i = mptsas_get_fw_diag_buffer_number(mpt, unique_id);
11799         if (i == MPTSAS_FW_DIAGNOSTIC_UID_NOT_FOUND) {
11800                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11801                 return (DDI_FAILURE);
11802         }
11803 
11804         pBuffer = &mpt->m_fw_diag_buffer_list[i];
11805 
11806         /*
11807          * Make sure requested read is within limits
11808          */
11809         if (diag_read_buffer->StartingOffset + diag_read_buffer->BytesToRead >
11810             pBuffer->buffer_data.size) {
11811                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11812                 return (DDI_FAILURE);
11813         }
11814 
11815         /*
11816          * Copy the requested data from DMA to the diag_read_buffer.  The DMA
11817          * buffer that was allocated is one contiguous buffer.
11818          */
11819         pData = (uint8_t *)(pBuffer->buffer_data.memp +
11820             diag_read_buffer->StartingOffset);
11821         (void) ddi_dma_sync(pBuffer->buffer_data.handle, 0, 0,
11822             DDI_DMA_SYNC_FORCPU);
11823         for (byte = 0; byte < diag_read_buffer->BytesToRead; byte++) {
11824                 if (ddi_copyout(pData + byte, ioctl_buf + byte, 1, ioctl_mode)
11825                     != 0) {
11826                         return (DDI_FAILURE);
11827                 }
11828         }
11829         diag_read_buffer->Status = 0;
11830 
11831         /*
11832          * Set or clear the Force Release flag.
11833          */
11834         if (pBuffer->force_release) {
11835                 diag_read_buffer->Flags |= MPTSAS_FW_DIAG_FLAG_FORCE_RELEASE;
11836         } else {
11837                 diag_read_buffer->Flags &= ~MPTSAS_FW_DIAG_FLAG_FORCE_RELEASE;
11838         }
11839 
11840         /*
11841          * If buffer is to be reregistered, make sure it's not already owned by
11842          * firmware first.
11843          */
11844         status = DDI_SUCCESS;
11845         if (!pBuffer->owned_by_firmware) {
11846                 if (diag_read_buffer->Flags & MPTSAS_FW_DIAG_FLAG_REREGISTER) {
11847                         status = mptsas_post_fw_diag_buffer(mpt, pBuffer,
11848                             return_code);
11849                 }
11850         }
11851 
11852         return (status);
11853 }
11854 
11855 static int
11856 mptsas_diag_release(mptsas_t *mpt, mptsas_fw_diag_release_t *diag_release,
11857     uint32_t *return_code)
11858 {
11859         mptsas_fw_diagnostic_buffer_t   *pBuffer;
11860         uint8_t                         i;
11861         uint32_t                        unique_id;
11862         int                             status;
11863 
11864         ASSERT(mutex_owned(&mpt->m_mutex));
11865 
11866         unique_id = diag_release->UniqueId;
11867 
11868         /*
11869          * Get the current buffer and look up the unique ID.  The unique ID
11870          * should be there.
11871          */
11872         i = mptsas_get_fw_diag_buffer_number(mpt, unique_id);
11873         if (i == MPTSAS_FW_DIAGNOSTIC_UID_NOT_FOUND) {
11874                 *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_UID;
11875                 return (DDI_FAILURE);
11876         }
11877 
11878         pBuffer = &mpt->m_fw_diag_buffer_list[i];
11879 
11880         /*
11881          * If buffer is not owned by firmware, it's already been released.
11882          */
11883         if (!pBuffer->owned_by_firmware) {
11884                 *return_code = MPTSAS_FW_DIAG_ERROR_ALREADY_RELEASED;
11885                 return (DDI_FAILURE);
11886         }
11887 
11888         /*
11889          * Release the buffer.
11890          */
11891         status = mptsas_release_fw_diag_buffer(mpt, pBuffer, return_code,
11892             MPTSAS_FW_DIAG_TYPE_RELEASE);
11893         return (status);
11894 }
11895 
11896 static int
11897 mptsas_do_diag_action(mptsas_t *mpt, uint32_t action, uint8_t *diag_action,
11898     uint32_t length, uint32_t *return_code, int ioctl_mode)
11899 {
11900         mptsas_fw_diag_register_t       diag_register;
11901         mptsas_fw_diag_unregister_t     diag_unregister;
11902         mptsas_fw_diag_query_t          diag_query;
11903         mptsas_diag_read_buffer_t       diag_read_buffer;
11904         mptsas_fw_diag_release_t        diag_release;
11905         int                             status = DDI_SUCCESS;
11906         uint32_t                        original_return_code, read_buf_len;
11907 
11908         ASSERT(mutex_owned(&mpt->m_mutex));
11909 
11910         original_return_code = *return_code;
11911         *return_code = MPTSAS_FW_DIAG_ERROR_SUCCESS;
11912 
11913         switch (action) {
11914                 case MPTSAS_FW_DIAG_TYPE_REGISTER:
11915                         if (!length) {
11916                                 *return_code =
11917                                     MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11918                                 status = DDI_FAILURE;
11919                                 break;
11920                         }
11921                         if (ddi_copyin(diag_action, &diag_register,
11922                             sizeof (diag_register), ioctl_mode) != 0) {
11923                                 return (DDI_FAILURE);
11924                         }
11925                         status = mptsas_diag_register(mpt, &diag_register,
11926                             return_code);
11927                         break;
11928 
11929                 case MPTSAS_FW_DIAG_TYPE_UNREGISTER:
11930                         if (length < sizeof (diag_unregister)) {
11931                                 *return_code =
11932                                     MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11933                                 status = DDI_FAILURE;
11934                                 break;
11935                         }
11936                         if (ddi_copyin(diag_action, &diag_unregister,
11937                             sizeof (diag_unregister), ioctl_mode) != 0) {
11938                                 return (DDI_FAILURE);
11939                         }
11940                         status = mptsas_diag_unregister(mpt, &diag_unregister,
11941                             return_code);
11942                         break;
11943 
11944                 case MPTSAS_FW_DIAG_TYPE_QUERY:
11945                         if (length < sizeof (diag_query)) {
11946                                 *return_code =
11947                                     MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11948                                 status = DDI_FAILURE;
11949                                 break;
11950                         }
11951                         if (ddi_copyin(diag_action, &diag_query,
11952                             sizeof (diag_query), ioctl_mode) != 0) {
11953                                 return (DDI_FAILURE);
11954                         }
11955                         status = mptsas_diag_query(mpt, &diag_query,
11956                             return_code);
11957                         if (status == DDI_SUCCESS) {
11958                                 if (ddi_copyout(&diag_query, diag_action,
11959                                     sizeof (diag_query), ioctl_mode) != 0) {
11960                                         return (DDI_FAILURE);
11961                                 }
11962                         }
11963                         break;
11964 
11965                 case MPTSAS_FW_DIAG_TYPE_READ_BUFFER:
11966                         if (ddi_copyin(diag_action, &diag_read_buffer,
11967                             sizeof (diag_read_buffer) - 4, ioctl_mode) != 0) {
11968                                 return (DDI_FAILURE);
11969                         }
11970                         read_buf_len = sizeof (diag_read_buffer) -
11971                             sizeof (diag_read_buffer.DataBuffer) +
11972                             diag_read_buffer.BytesToRead;
11973                         if (length < read_buf_len) {
11974                                 *return_code =
11975                                     MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11976                                 status = DDI_FAILURE;
11977                                 break;
11978                         }
11979                         status = mptsas_diag_read_buffer(mpt,
11980                             &diag_read_buffer, diag_action +
11981                             sizeof (diag_read_buffer) - 4, return_code,
11982                             ioctl_mode);
11983                         if (status == DDI_SUCCESS) {
11984                                 if (ddi_copyout(&diag_read_buffer, diag_action,
11985                                     sizeof (diag_read_buffer) - 4, ioctl_mode)
11986                                     != 0) {
11987                                         return (DDI_FAILURE);
11988                                 }
11989                         }
11990                         break;
11991 
11992                 case MPTSAS_FW_DIAG_TYPE_RELEASE:
11993                         if (length < sizeof (diag_release)) {
11994                                 *return_code =
11995                                     MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
11996                                 status = DDI_FAILURE;
11997                                 break;
11998                         }
11999                         if (ddi_copyin(diag_action, &diag_release,
12000                             sizeof (diag_release), ioctl_mode) != 0) {
12001                                 return (DDI_FAILURE);
12002                         }
12003                         status = mptsas_diag_release(mpt, &diag_release,
12004                             return_code);
12005                         break;
12006 
12007                 default:
12008                         *return_code = MPTSAS_FW_DIAG_ERROR_INVALID_PARAMETER;
12009                         status = DDI_FAILURE;
12010                         break;
12011         }
12012 
12013         if ((status == DDI_FAILURE) &&
12014             (original_return_code == MPTSAS_FW_DIAG_NEW) &&
12015             (*return_code != MPTSAS_FW_DIAG_ERROR_SUCCESS)) {
12016                 status = DDI_SUCCESS;
12017         }
12018 
12019         return (status);
12020 }
12021 
12022 static int
12023 mptsas_diag_action(mptsas_t *mpt, mptsas_diag_action_t *user_data, int mode)
12024 {
12025         int                     status;
12026         mptsas_diag_action_t    driver_data;
12027 
12028         ASSERT(mutex_owned(&mpt->m_mutex));
12029 
12030         /*
12031          * Copy the user data to a driver data buffer.
12032          */
12033         if (ddi_copyin(user_data, &driver_data, sizeof (mptsas_diag_action_t),
12034             mode) == 0) {
12035                 /*
12036                  * Send diag action request if Action is valid
12037                  */
12038                 if (driver_data.Action == MPTSAS_FW_DIAG_TYPE_REGISTER ||
12039                     driver_data.Action == MPTSAS_FW_DIAG_TYPE_UNREGISTER ||
12040                     driver_data.Action == MPTSAS_FW_DIAG_TYPE_QUERY ||
12041                     driver_data.Action == MPTSAS_FW_DIAG_TYPE_READ_BUFFER ||
12042                     driver_data.Action == MPTSAS_FW_DIAG_TYPE_RELEASE) {
12043                         status = mptsas_do_diag_action(mpt, driver_data.Action,
12044                             (void *)(uintptr_t)driver_data.PtrDiagAction,
12045                             driver_data.Length, &driver_data.ReturnCode,
12046                             mode);
12047                         if (status == DDI_SUCCESS) {
12048                                 if (ddi_copyout(&driver_data.ReturnCode,
12049                                     &user_data->ReturnCode,
12050                                     sizeof (user_data->ReturnCode), mode)
12051                                     != 0) {
12052                                         status = EFAULT;
12053                                 } else {
12054                                         status = 0;
12055                                 }
12056                         } else {
12057                                 status = EIO;
12058                         }
12059                 } else {
12060                         status = EINVAL;
12061                 }
12062         } else {
12063                 status = EFAULT;
12064         }
12065 
12066         return (status);
12067 }
12068 
12069 /*
12070  * This routine handles the "event query" ioctl.
12071  */
12072 static int
12073 mptsas_event_query(mptsas_t *mpt, mptsas_event_query_t *data, int mode,
12074     int *rval)
12075 {
12076         int                     status;
12077         mptsas_event_query_t    driverdata;
12078         uint8_t                 i;
12079 
12080         driverdata.Entries = MPTSAS_EVENT_QUEUE_SIZE;
12081 
12082         mutex_enter(&mpt->m_mutex);
12083         for (i = 0; i < 4; i++) {
12084                 driverdata.Types[i] = mpt->m_event_mask[i];
12085         }
12086         mutex_exit(&mpt->m_mutex);
12087 
12088         if (ddi_copyout(&driverdata, data, sizeof (driverdata), mode) != 0) {
12089                 status = EFAULT;
12090         } else {
12091                 *rval = MPTIOCTL_STATUS_GOOD;
12092                 status = 0;
12093         }
12094 
12095         return (status);
12096 }
12097 
12098 /*
12099  * This routine handles the "event enable" ioctl.
12100  */
12101 static int
12102 mptsas_event_enable(mptsas_t *mpt, mptsas_event_enable_t *data, int mode,
12103     int *rval)
12104 {
12105         int                     status;
12106         mptsas_event_enable_t   driverdata;
12107         uint8_t                 i;
12108 
12109         if (ddi_copyin(data, &driverdata, sizeof (driverdata), mode) == 0) {
12110                 mutex_enter(&mpt->m_mutex);
12111                 for (i = 0; i < 4; i++) {
12112                         mpt->m_event_mask[i] = driverdata.Types[i];
12113                 }
12114                 mutex_exit(&mpt->m_mutex);
12115 
12116                 *rval = MPTIOCTL_STATUS_GOOD;
12117                 status = 0;
12118         } else {
12119                 status = EFAULT;
12120         }
12121         return (status);
12122 }
12123 
12124 /*
12125  * This routine handles the "event report" ioctl.
12126  */
12127 static int
12128 mptsas_event_report(mptsas_t *mpt, mptsas_event_report_t *data, int mode,
12129     int *rval)
12130 {
12131         int                     status;
12132         mptsas_event_report_t   driverdata;
12133 
12134         mutex_enter(&mpt->m_mutex);
12135 
12136         if (ddi_copyin(&data->Size, &driverdata.Size, sizeof (driverdata.Size),
12137             mode) == 0) {
12138                 if (driverdata.Size >= sizeof (mpt->m_events)) {
12139                         if (ddi_copyout(mpt->m_events, data->Events,
12140                             sizeof (mpt->m_events), mode) != 0) {
12141                                 status = EFAULT;
12142                         } else {
12143                                 if (driverdata.Size > sizeof (mpt->m_events)) {
12144                                         driverdata.Size =
12145                                             sizeof (mpt->m_events);
12146                                         if (ddi_copyout(&driverdata.Size,
12147                                             &data->Size,
12148                                             sizeof (driverdata.Size),
12149                                             mode) != 0) {
12150                                                 status = EFAULT;
12151                                         } else {
12152                                                 *rval = MPTIOCTL_STATUS_GOOD;
12153                                                 status = 0;
12154                                         }
12155                                 } else {
12156                                         *rval = MPTIOCTL_STATUS_GOOD;
12157                                         status = 0;
12158                                 }
12159                         }
12160                 } else {
12161                         *rval = MPTIOCTL_STATUS_LEN_TOO_SHORT;
12162                         status = 0;
12163                 }
12164         } else {
12165                 status = EFAULT;
12166         }
12167 
12168         mutex_exit(&mpt->m_mutex);
12169         return (status);
12170 }
12171 
12172 static void
12173 mptsas_lookup_pci_data(mptsas_t *mpt, mptsas_adapter_data_t *adapter_data)
12174 {
12175         int     *reg_data;
12176         uint_t  reglen;
12177 
12178         /*
12179          * Lookup the 'reg' property and extract the other data
12180          */
12181         if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, mpt->m_dip,
12182             DDI_PROP_DONTPASS, "reg", &reg_data, &reglen) ==
12183             DDI_PROP_SUCCESS) {
12184                 /*
12185                  * Extract the PCI data from the 'reg' property first DWORD.
12186                  * The entry looks like the following:
12187                  * First DWORD:
12188                  * Bits 0 - 7 8-bit Register number
12189                  * Bits 8 - 10 3-bit Function number
12190                  * Bits 11 - 15 5-bit Device number
12191                  * Bits 16 - 23 8-bit Bus number
12192                  * Bits 24 - 25 2-bit Address Space type identifier
12193                  *
12194                  */
12195                 adapter_data->PciInformation.u.bits.BusNumber =
12196                     (reg_data[0] & 0x00FF0000) >> 16;
12197                 adapter_data->PciInformation.u.bits.DeviceNumber =
12198                     (reg_data[0] & 0x0000F800) >> 11;
12199                 adapter_data->PciInformation.u.bits.FunctionNumber =
12200                     (reg_data[0] & 0x00000700) >> 8;
12201                 ddi_prop_free((void *)reg_data);
12202         } else {
12203                 /*
12204                  * If we can't determine the PCI data then we fill in FF's for
12205                  * the data to indicate this.
12206                  */
12207                 adapter_data->PCIDeviceHwId = 0xFFFFFFFF;
12208                 adapter_data->MpiPortNumber = 0xFFFFFFFF;
12209                 adapter_data->PciInformation.u.AsDWORD = 0xFFFFFFFF;
12210         }
12211 
12212         /*
12213          * Saved in the mpt->m_fwversion
12214          */
12215         adapter_data->MpiFirmwareVersion = mpt->m_fwversion;
12216 }
12217 
12218 static void
12219 mptsas_read_adapter_data(mptsas_t *mpt, mptsas_adapter_data_t *adapter_data)
12220 {
12221         char    *driver_verstr = MPTSAS_MOD_STRING;
12222 
12223         mptsas_lookup_pci_data(mpt, adapter_data);
12224         adapter_data->AdapterType = mpt->m_MPI25 ?
12225             MPTIOCTL_ADAPTER_TYPE_SAS3 :
12226             MPTIOCTL_ADAPTER_TYPE_SAS2;
12227         adapter_data->PCIDeviceHwId = (uint32_t)mpt->m_devid;
12228         adapter_data->PCIDeviceHwRev = (uint32_t)mpt->m_revid;
12229         adapter_data->SubSystemId = (uint32_t)mpt->m_ssid;
12230         adapter_data->SubsystemVendorId = (uint32_t)mpt->m_svid;
12231         (void) strcpy((char *)&adapter_data->DriverVersion[0], driver_verstr);
12232         adapter_data->BiosVersion = 0;
12233         (void) mptsas_get_bios_page3(mpt, &adapter_data->BiosVersion);
12234 }
12235 
12236 static void
12237 mptsas_read_pci_info(mptsas_t *mpt, mptsas_pci_info_t *pci_info)
12238 {
12239         int     *reg_data, i;
12240         uint_t  reglen;
12241 
12242         /*
12243          * Lookup the 'reg' property and extract the other data
12244          */
12245         if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, mpt->m_dip,
12246             DDI_PROP_DONTPASS, "reg", &reg_data, &reglen) ==
12247             DDI_PROP_SUCCESS) {
12248                 /*
12249                  * Extract the PCI data from the 'reg' property first DWORD.
12250                  * The entry looks like the following:
12251                  * First DWORD:
12252                  * Bits 8 - 10 3-bit Function number
12253                  * Bits 11 - 15 5-bit Device number
12254                  * Bits 16 - 23 8-bit Bus number
12255                  */
12256                 pci_info->BusNumber = (reg_data[0] & 0x00FF0000) >> 16;
12257                 pci_info->DeviceNumber = (reg_data[0] & 0x0000F800) >> 11;
12258                 pci_info->FunctionNumber = (reg_data[0] & 0x00000700) >> 8;
12259                 ddi_prop_free((void *)reg_data);
12260         } else {
12261                 /*
12262                  * If we can't determine the PCI info then we fill in FF's for
12263                  * the data to indicate this.
12264                  */
12265                 pci_info->BusNumber = 0xFFFFFFFF;
12266                 pci_info->DeviceNumber = 0xFF;
12267                 pci_info->FunctionNumber = 0xFF;
12268         }
12269 
12270         /*
12271          * Now get the interrupt vector and the pci header.  The vector can
12272          * only be 0 right now.  The header is the first 256 bytes of config
12273          * space.
12274          */
12275         pci_info->InterruptVector = 0;
12276         for (i = 0; i < sizeof (pci_info->PciHeader); i++) {
12277                 pci_info->PciHeader[i] = pci_config_get8(mpt->m_config_handle,
12278                     i);
12279         }
12280 }
12281 
12282 static int
12283 mptsas_reg_access(mptsas_t *mpt, mptsas_reg_access_t *data, int mode)
12284 {
12285         int                     status = 0;
12286         mptsas_reg_access_t     driverdata;
12287 
12288         mutex_enter(&mpt->m_mutex);
12289         if (ddi_copyin(data, &driverdata, sizeof (driverdata), mode) == 0) {
12290                 switch (driverdata.Command) {
12291                         /*
12292                          * IO access is not supported.
12293                          */
12294                         case REG_IO_READ:
12295                         case REG_IO_WRITE:
12296                                 mptsas_log(mpt, CE_WARN, "IO access is not "
12297                                     "supported.  Use memory access.");
12298                                 status = EINVAL;
12299                                 break;
12300 
12301                         case REG_MEM_READ:
12302                                 driverdata.RegData = ddi_get32(mpt->m_datap,
12303                                     (uint32_t *)(void *)mpt->m_reg +
12304                                     driverdata.RegOffset);
12305                                 if (ddi_copyout(&driverdata.RegData,
12306                                     &data->RegData,
12307                                     sizeof (driverdata.RegData), mode) != 0) {
12308                                         mptsas_log(mpt, CE_WARN, "Register "
12309                                             "Read Failed");
12310                                         status = EFAULT;
12311                                 }
12312                                 break;
12313 
12314                         case REG_MEM_WRITE:
12315                                 ddi_put32(mpt->m_datap,
12316                                     (uint32_t *)(void *)mpt->m_reg +
12317                                     driverdata.RegOffset,
12318                                     driverdata.RegData);
12319                                 break;
12320 
12321                         default:
12322                                 status = EINVAL;
12323                                 break;
12324                 }
12325         } else {
12326                 status = EFAULT;
12327         }
12328 
12329         mutex_exit(&mpt->m_mutex);
12330         return (status);
12331 }
12332 
12333 static int
12334 led_control(mptsas_t *mpt, intptr_t data, int mode)
12335 {
12336         int ret = 0;
12337         mptsas_led_control_t lc;
12338         mptsas_target_t *ptgt;
12339 
12340         if (ddi_copyin((void *)data, &lc, sizeof (lc), mode) != 0) {
12341                 return (EFAULT);
12342         }
12343 
12344         if ((lc.Command != MPTSAS_LEDCTL_FLAG_SET &&
12345             lc.Command != MPTSAS_LEDCTL_FLAG_GET) ||
12346             lc.Led < MPTSAS_LEDCTL_LED_MIN ||
12347             lc.Led > MPTSAS_LEDCTL_LED_MAX ||
12348             (lc.Command == MPTSAS_LEDCTL_FLAG_SET && lc.LedStatus != 0 &&
12349             lc.LedStatus != 1)) {
12350                 return (EINVAL);
12351         }
12352 
12353         if ((lc.Command == MPTSAS_LEDCTL_FLAG_SET && (mode & FWRITE) == 0) ||
12354             (lc.Command == MPTSAS_LEDCTL_FLAG_GET && (mode & FREAD) == 0))
12355                 return (EACCES);
12356 
12357         /* Locate the target we're interrogating... */
12358         mutex_enter(&mpt->m_mutex);
12359         ptgt = refhash_linear_search(mpt->m_targets,
12360             mptsas_target_eval_slot, &lc);
12361         if (ptgt == NULL) {
12362                 /* We could not find a target for that enclosure/slot. */
12363                 mutex_exit(&mpt->m_mutex);
12364                 return (ENOENT);
12365         }
12366 
12367         if (lc.Command == MPTSAS_LEDCTL_FLAG_SET) {
12368                 /* Update our internal LED state. */
12369                 ptgt->m_led_status &= ~(1 << (lc.Led - 1));
12370                 ptgt->m_led_status |= lc.LedStatus << (lc.Led - 1);
12371 
12372                 /* Flush it to the controller. */
12373                 ret = mptsas_flush_led_status(mpt, ptgt);
12374                 mutex_exit(&mpt->m_mutex);
12375                 return (ret);
12376         }
12377 
12378         /* Return our internal LED state. */
12379         lc.LedStatus = (ptgt->m_led_status >> (lc.Led - 1)) & 1;
12380         mutex_exit(&mpt->m_mutex);
12381 
12382         if (ddi_copyout(&lc, (void *)data, sizeof (lc), mode) != 0) {
12383                 return (EFAULT);
12384         }
12385 
12386         return (0);
12387 }
12388 
12389 static int
12390 get_disk_info(mptsas_t *mpt, intptr_t data, int mode)
12391 {
12392         uint16_t i = 0;
12393         uint16_t count = 0;
12394         int ret = 0;
12395         mptsas_target_t *ptgt;
12396         mptsas_disk_info_t *di;
12397         STRUCT_DECL(mptsas_get_disk_info, gdi);
12398 
12399         if ((mode & FREAD) == 0)
12400                 return (EACCES);
12401 
12402         STRUCT_INIT(gdi, get_udatamodel());
12403 
12404         if (ddi_copyin((void *)data, STRUCT_BUF(gdi), STRUCT_SIZE(gdi),
12405             mode) != 0) {
12406                 return (EFAULT);
12407         }
12408 
12409         /* Find out how many targets there are. */
12410         mutex_enter(&mpt->m_mutex);
12411         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
12412             ptgt = refhash_next(mpt->m_targets, ptgt)) {
12413                 count++;
12414         }
12415         mutex_exit(&mpt->m_mutex);
12416 
12417         /*
12418          * If we haven't been asked to copy out information on each target,
12419          * then just return the count.
12420          */
12421         STRUCT_FSET(gdi, DiskCount, count);
12422         if (STRUCT_FGETP(gdi, PtrDiskInfoArray) == NULL)
12423                 goto copy_out;
12424 
12425         /*
12426          * If we haven't been given a large enough buffer to copy out into,
12427          * let the caller know.
12428          */
12429         if (STRUCT_FGET(gdi, DiskInfoArraySize) <
12430             count * sizeof (mptsas_disk_info_t)) {
12431                 ret = ENOSPC;
12432                 goto copy_out;
12433         }
12434 
12435         di = kmem_zalloc(count * sizeof (mptsas_disk_info_t), KM_SLEEP);
12436 
12437         mutex_enter(&mpt->m_mutex);
12438         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
12439             ptgt = refhash_next(mpt->m_targets, ptgt)) {
12440                 if (i >= count) {
12441                         /*
12442                          * The number of targets changed while we weren't
12443                          * looking, so give up.
12444                          */
12445                         refhash_rele(mpt->m_targets, ptgt);
12446                         mutex_exit(&mpt->m_mutex);
12447                         kmem_free(di, count * sizeof (mptsas_disk_info_t));
12448                         return (EAGAIN);
12449                 }
12450                 di[i].Instance = mpt->m_instance;
12451                 di[i].Enclosure = ptgt->m_enclosure;
12452                 di[i].Slot = ptgt->m_slot_num;
12453                 di[i].SasAddress = ptgt->m_addr.mta_wwn;
12454                 i++;
12455         }
12456         mutex_exit(&mpt->m_mutex);
12457         STRUCT_FSET(gdi, DiskCount, i);
12458 
12459         /* Copy out the disk information to the caller. */
12460         if (ddi_copyout((void *)di, STRUCT_FGETP(gdi, PtrDiskInfoArray),
12461             i * sizeof (mptsas_disk_info_t), mode) != 0) {
12462                 ret = EFAULT;
12463         }
12464 
12465         kmem_free(di, count * sizeof (mptsas_disk_info_t));
12466 
12467 copy_out:
12468         if (ddi_copyout(STRUCT_BUF(gdi), (void *)data, STRUCT_SIZE(gdi),
12469             mode) != 0) {
12470                 ret = EFAULT;
12471         }
12472 
12473         return (ret);
12474 }
12475 
12476 static int
12477 mptsas_ioctl(dev_t dev, int cmd, intptr_t data, int mode, cred_t *credp,
12478     int *rval)
12479 {
12480         int                     status = 0;
12481         mptsas_t                *mpt;
12482         mptsas_update_flash_t   flashdata;
12483         mptsas_pass_thru_t      passthru_data;
12484         mptsas_adapter_data_t   adapter_data;
12485         mptsas_pci_info_t       pci_info;
12486         int                     copylen;
12487 
12488         int                     iport_flag = 0;
12489         dev_info_t              *dip = NULL;
12490         mptsas_phymask_t        phymask = 0;
12491         struct devctl_iocdata   *dcp = NULL;
12492         char                    *addr = NULL;
12493         mptsas_target_t         *ptgt = NULL;
12494 
12495         *rval = MPTIOCTL_STATUS_GOOD;
12496         if (secpolicy_sys_config(credp, B_FALSE) != 0) {
12497                 return (EPERM);
12498         }
12499 
12500         mpt = ddi_get_soft_state(mptsas_state, MINOR2INST(getminor(dev)));
12501         if (mpt == NULL) {
12502                 /*
12503                  * Called from iport node, get the states
12504                  */
12505                 iport_flag = 1;
12506                 dip = mptsas_get_dip_from_dev(dev, &phymask);
12507                 if (dip == NULL) {
12508                         return (ENXIO);
12509                 }
12510                 mpt = DIP2MPT(dip);
12511         }
12512         /* Make sure power level is D0 before accessing registers */
12513         mutex_enter(&mpt->m_mutex);
12514         if (mpt->m_options & MPTSAS_OPT_PM) {
12515                 (void) pm_busy_component(mpt->m_dip, 0);
12516                 if (mpt->m_power_level != PM_LEVEL_D0) {
12517                         mutex_exit(&mpt->m_mutex);
12518                         if (pm_raise_power(mpt->m_dip, 0, PM_LEVEL_D0) !=
12519                             DDI_SUCCESS) {
12520                                 mptsas_log(mpt, CE_WARN,
12521                                     "mptsas%d: mptsas_ioctl: Raise power "
12522                                     "request failed.", mpt->m_instance);
12523                                 (void) pm_idle_component(mpt->m_dip, 0);
12524                                 return (ENXIO);
12525                         }
12526                 } else {
12527                         mutex_exit(&mpt->m_mutex);
12528                 }
12529         } else {
12530                 mutex_exit(&mpt->m_mutex);
12531         }
12532 
12533         if (iport_flag) {
12534                 status = scsi_hba_ioctl(dev, cmd, data, mode, credp, rval);
12535                 if (status != 0) {
12536                         goto out;
12537                 }
12538                 /*
12539                  * The following code control the OK2RM LED, it doesn't affect
12540                  * the ioctl return status.
12541                  */
12542                 if ((cmd == DEVCTL_DEVICE_ONLINE) ||
12543                     (cmd == DEVCTL_DEVICE_OFFLINE)) {
12544                         if (ndi_dc_allochdl((void *)data, &dcp) !=
12545                             NDI_SUCCESS) {
12546                                 goto out;
12547                         }
12548                         addr = ndi_dc_getaddr(dcp);
12549                         ptgt = mptsas_addr_to_ptgt(mpt, addr, phymask);
12550                         if (ptgt == NULL) {
12551                                 NDBG14(("mptsas_ioctl led control: tgt %s not "
12552                                     "found", addr));
12553                                 ndi_dc_freehdl(dcp);
12554                                 goto out;
12555                         }
12556                         mutex_enter(&mpt->m_mutex);
12557                         if (cmd == DEVCTL_DEVICE_ONLINE) {
12558                                 ptgt->m_tgt_unconfigured = 0;
12559                         } else if (cmd == DEVCTL_DEVICE_OFFLINE) {
12560                                 ptgt->m_tgt_unconfigured = 1;
12561                         }
12562                         if (cmd == DEVCTL_DEVICE_OFFLINE) {
12563                                 ptgt->m_led_status |=
12564                                     (1 << (MPTSAS_LEDCTL_LED_OK2RM - 1));
12565                         } else {
12566                                 ptgt->m_led_status &=
12567                                     ~(1 << (MPTSAS_LEDCTL_LED_OK2RM - 1));
12568                         }
12569                         (void) mptsas_flush_led_status(mpt, ptgt);
12570                         mutex_exit(&mpt->m_mutex);
12571                         ndi_dc_freehdl(dcp);
12572                 }
12573                 goto out;
12574         }
12575         switch (cmd) {
12576                 case MPTIOCTL_GET_DISK_INFO:
12577                         status = get_disk_info(mpt, data, mode);
12578                         break;
12579                 case MPTIOCTL_LED_CONTROL:
12580                         status = led_control(mpt, data, mode);
12581                         break;
12582                 case MPTIOCTL_UPDATE_FLASH:
12583                         if (ddi_copyin((void *)data, &flashdata,
12584                                 sizeof (struct mptsas_update_flash), mode)) {
12585                                 status = EFAULT;
12586                                 break;
12587                         }
12588 
12589                         mutex_enter(&mpt->m_mutex);
12590                         if (mptsas_update_flash(mpt,
12591                             (caddr_t)(long)flashdata.PtrBuffer,
12592                             flashdata.ImageSize, flashdata.ImageType, mode)) {
12593                                 status = EFAULT;
12594                         }
12595 
12596                         /*
12597                          * Reset the chip to start using the new
12598                          * firmware.  Reset if failed also.
12599                          */
12600                         mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
12601                         if (mptsas_restart_ioc(mpt) == DDI_FAILURE) {
12602                                 status = EFAULT;
12603                         }
12604                         mutex_exit(&mpt->m_mutex);
12605                         break;
12606                 case MPTIOCTL_PASS_THRU:
12607                         /*
12608                          * The user has requested to pass through a command to
12609                          * be executed by the MPT firmware.  Call our routine
12610                          * which does this.  Only allow one passthru IOCTL at
12611                          * one time. Other threads will block on
12612                          * m_passthru_mutex, which is of adaptive variant.
12613                          */
12614                         if (ddi_copyin((void *)data, &passthru_data,
12615                             sizeof (mptsas_pass_thru_t), mode)) {
12616                                 status = EFAULT;
12617                                 break;
12618                         }
12619                         mutex_enter(&mpt->m_passthru_mutex);
12620                         mutex_enter(&mpt->m_mutex);
12621                         status = mptsas_pass_thru(mpt, &passthru_data, mode);
12622                         mutex_exit(&mpt->m_mutex);
12623                         mutex_exit(&mpt->m_passthru_mutex);
12624 
12625                         break;
12626                 case MPTIOCTL_GET_ADAPTER_DATA:
12627                         /*
12628                          * The user has requested to read adapter data.  Call
12629                          * our routine which does this.
12630                          */
12631                         bzero(&adapter_data, sizeof (mptsas_adapter_data_t));
12632                         if (ddi_copyin((void *)data, (void *)&adapter_data,
12633                             sizeof (mptsas_adapter_data_t), mode)) {
12634                                 status = EFAULT;
12635                                 break;
12636                         }
12637                         if (adapter_data.StructureLength >=
12638                             sizeof (mptsas_adapter_data_t)) {
12639                                 adapter_data.StructureLength = (uint32_t)
12640                                     sizeof (mptsas_adapter_data_t);
12641                                 copylen = sizeof (mptsas_adapter_data_t);
12642                                 mutex_enter(&mpt->m_mutex);
12643                                 mptsas_read_adapter_data(mpt, &adapter_data);
12644                                 mutex_exit(&mpt->m_mutex);
12645                         } else {
12646                                 adapter_data.StructureLength = (uint32_t)
12647                                     sizeof (mptsas_adapter_data_t);
12648                                 copylen = sizeof (adapter_data.StructureLength);
12649                                 *rval = MPTIOCTL_STATUS_LEN_TOO_SHORT;
12650                         }
12651                         if (ddi_copyout((void *)(&adapter_data), (void *)data,
12652                             copylen, mode) != 0) {
12653                                 status = EFAULT;
12654                         }
12655                         break;
12656                 case MPTIOCTL_GET_PCI_INFO:
12657                         /*
12658                          * The user has requested to read pci info.  Call
12659                          * our routine which does this.
12660                          */
12661                         bzero(&pci_info, sizeof (mptsas_pci_info_t));
12662                         mutex_enter(&mpt->m_mutex);
12663                         mptsas_read_pci_info(mpt, &pci_info);
12664                         mutex_exit(&mpt->m_mutex);
12665                         if (ddi_copyout((void *)(&pci_info), (void *)data,
12666                             sizeof (mptsas_pci_info_t), mode) != 0) {
12667                                 status = EFAULT;
12668                         }
12669                         break;
12670                 case MPTIOCTL_RESET_ADAPTER:
12671                         mutex_enter(&mpt->m_mutex);
12672                         mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
12673                         if ((mptsas_restart_ioc(mpt)) == DDI_FAILURE) {
12674                                 mptsas_log(mpt, CE_WARN, "reset adapter IOCTL "
12675                                     "failed");
12676                                 status = EFAULT;
12677                         }
12678                         mutex_exit(&mpt->m_mutex);
12679                         break;
12680                 case MPTIOCTL_DIAG_ACTION:
12681                         /*
12682                          * The user has done a diag buffer action.  Call our
12683                          * routine which does this.  Only allow one diag action
12684                          * at one time.
12685                          */
12686                         mutex_enter(&mpt->m_mutex);
12687                         if (mpt->m_diag_action_in_progress) {
12688                                 mutex_exit(&mpt->m_mutex);
12689                                 return (EBUSY);
12690                         }
12691                         mpt->m_diag_action_in_progress = 1;
12692                         status = mptsas_diag_action(mpt,
12693                             (mptsas_diag_action_t *)data, mode);
12694                         mpt->m_diag_action_in_progress = 0;
12695                         mutex_exit(&mpt->m_mutex);
12696                         break;
12697                 case MPTIOCTL_EVENT_QUERY:
12698                         /*
12699                          * The user has done an event query. Call our routine
12700                          * which does this.
12701                          */
12702                         status = mptsas_event_query(mpt,
12703                             (mptsas_event_query_t *)data, mode, rval);
12704                         break;
12705                 case MPTIOCTL_EVENT_ENABLE:
12706                         /*
12707                          * The user has done an event enable. Call our routine
12708                          * which does this.
12709                          */
12710                         status = mptsas_event_enable(mpt,
12711                             (mptsas_event_enable_t *)data, mode, rval);
12712                         break;
12713                 case MPTIOCTL_EVENT_REPORT:
12714                         /*
12715                          * The user has done an event report. Call our routine
12716                          * which does this.
12717                          */
12718                         status = mptsas_event_report(mpt,
12719                             (mptsas_event_report_t *)data, mode, rval);
12720                         break;
12721                 case MPTIOCTL_REG_ACCESS:
12722                         /*
12723                          * The user has requested register access.  Call our
12724                          * routine which does this.
12725                          */
12726                         status = mptsas_reg_access(mpt,
12727                             (mptsas_reg_access_t *)data, mode);
12728                         break;
12729                 default:
12730                         status = scsi_hba_ioctl(dev, cmd, data, mode, credp,
12731                             rval);
12732                         break;
12733         }
12734 
12735 out:
12736         return (status);
12737 }
12738 
12739 int
12740 mptsas_restart_ioc(mptsas_t *mpt)
12741 {
12742         int             rval = DDI_SUCCESS;
12743         mptsas_target_t *ptgt = NULL;
12744 
12745         ASSERT(mutex_owned(&mpt->m_mutex));
12746 
12747         /*
12748          * Set a flag telling I/O path that we're processing a reset.  This is
12749          * needed because after the reset is complete, the hash table still
12750          * needs to be rebuilt.  If I/Os are started before the hash table is
12751          * rebuilt, I/O errors will occur.  This flag allows I/Os to be marked
12752          * so that they can be retried.
12753          */
12754         mpt->m_in_reset = TRUE;
12755 
12756         /*
12757          * Set all throttles to HOLD
12758          */
12759         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
12760             ptgt = refhash_next(mpt->m_targets, ptgt)) {
12761                 mptsas_set_throttle(mpt, ptgt, HOLD_THROTTLE);
12762         }
12763 
12764         /*
12765          * Disable interrupts
12766          */
12767         MPTSAS_DISABLE_INTR(mpt);
12768 
12769         /*
12770          * Abort all commands: outstanding commands, commands in waitq and
12771          * tx_waitq.
12772          */
12773         mptsas_flush_hba(mpt);
12774 
12775         /*
12776          * Reinitialize the chip.
12777          */
12778         if (mptsas_init_chip(mpt, FALSE) == DDI_FAILURE) {
12779                 rval = DDI_FAILURE;
12780         }
12781 
12782         /*
12783          * Enable interrupts again
12784          */
12785         MPTSAS_ENABLE_INTR(mpt);
12786 
12787         /*
12788          * If mptsas_init_chip was successful, update the driver data.
12789          */
12790         if (rval == DDI_SUCCESS) {
12791                 mptsas_update_driver_data(mpt);
12792         }
12793 
12794         /*
12795          * Reset the throttles
12796          */
12797         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
12798             ptgt = refhash_next(mpt->m_targets, ptgt)) {
12799                 mptsas_set_throttle(mpt, ptgt, MAX_THROTTLE);
12800         }
12801 
12802         mptsas_doneq_empty(mpt);
12803         mptsas_restart_hba(mpt);
12804 
12805         if (rval != DDI_SUCCESS) {
12806                 mptsas_fm_ereport(mpt, DDI_FM_DEVICE_NO_RESPONSE);
12807                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_LOST);
12808         }
12809 
12810         /*
12811          * Clear the reset flag so that I/Os can continue.
12812          */
12813         mpt->m_in_reset = FALSE;
12814 
12815         return (rval);
12816 }
12817 
12818 static int
12819 mptsas_init_chip(mptsas_t *mpt, int first_time)
12820 {
12821         ddi_dma_cookie_t        cookie;
12822         uint32_t                i;
12823         int                     rval;
12824 
12825         /*
12826          * Check to see if the firmware image is valid
12827          */
12828         if (ddi_get32(mpt->m_datap, &mpt->m_reg->HostDiagnostic) &
12829             MPI2_DIAG_FLASH_BAD_SIG) {
12830                 mptsas_log(mpt, CE_WARN, "mptsas bad flash signature!");
12831                 goto fail;
12832         }
12833 
12834         /*
12835          * Reset the chip
12836          */
12837         rval = mptsas_ioc_reset(mpt, first_time);
12838         if (rval == MPTSAS_RESET_FAIL) {
12839                 mptsas_log(mpt, CE_WARN, "hard reset failed!");
12840                 goto fail;
12841         }
12842 
12843         if ((rval == MPTSAS_SUCCESS_MUR) && (!first_time)) {
12844                 goto mur;
12845         }
12846         /*
12847          * Setup configuration space
12848          */
12849         if (mptsas_config_space_init(mpt) == FALSE) {
12850                 mptsas_log(mpt, CE_WARN, "mptsas_config_space_init "
12851                     "failed!");
12852                 goto fail;
12853         }
12854 
12855         /*
12856          * IOC facts can change after a diag reset so all buffers that are
12857          * based on these numbers must be de-allocated and re-allocated.  Get
12858          * new IOC facts each time chip is initialized.
12859          */
12860         if (mptsas_ioc_get_facts(mpt) == DDI_FAILURE) {
12861                 mptsas_log(mpt, CE_WARN, "mptsas_ioc_get_facts failed");
12862                 goto fail;
12863         }
12864 
12865         if (mptsas_alloc_active_slots(mpt, KM_SLEEP)) {
12866                 goto fail;
12867         }
12868         /*
12869          * Allocate request message frames, reply free queue, reply descriptor
12870          * post queue, and reply message frames using latest IOC facts.
12871          */
12872         if (mptsas_alloc_request_frames(mpt) == DDI_FAILURE) {
12873                 mptsas_log(mpt, CE_WARN, "mptsas_alloc_request_frames failed");
12874                 goto fail;
12875         }
12876         if (mptsas_alloc_sense_bufs(mpt) == DDI_FAILURE) {
12877                 mptsas_log(mpt, CE_WARN, "mptsas_alloc_sense_bufs failed");
12878                 goto fail;
12879         }
12880         if (mptsas_alloc_free_queue(mpt) == DDI_FAILURE) {
12881                 mptsas_log(mpt, CE_WARN, "mptsas_alloc_free_queue failed!");
12882                 goto fail;
12883         }
12884         if (mptsas_alloc_post_queue(mpt) == DDI_FAILURE) {
12885                 mptsas_log(mpt, CE_WARN, "mptsas_alloc_post_queue failed!");
12886                 goto fail;
12887         }
12888         if (mptsas_alloc_reply_frames(mpt) == DDI_FAILURE) {
12889                 mptsas_log(mpt, CE_WARN, "mptsas_alloc_reply_frames failed!");
12890                 goto fail;
12891         }
12892 
12893 mur:
12894         /*
12895          * Re-Initialize ioc to operational state
12896          */
12897         if (mptsas_ioc_init(mpt) == DDI_FAILURE) {
12898                 mptsas_log(mpt, CE_WARN, "mptsas_ioc_init failed");
12899                 goto fail;
12900         }
12901 
12902         mptsas_alloc_reply_args(mpt);
12903 
12904         /*
12905          * Initialize reply post index.  Reply free index is initialized after
12906          * the next loop.
12907          */
12908         mpt->m_post_index = 0;
12909 
12910         /*
12911          * Initialize the Reply Free Queue with the physical addresses of our
12912          * reply frames.
12913          */
12914         cookie.dmac_address = mpt->m_reply_frame_dma_addr & 0xffffffffu;
12915         for (i = 0; i < mpt->m_max_replies; i++) {
12916                 ddi_put32(mpt->m_acc_free_queue_hdl,
12917                     &((uint32_t *)(void *)mpt->m_free_queue)[i],
12918                     cookie.dmac_address);
12919                 cookie.dmac_address += mpt->m_reply_frame_size;
12920         }
12921         (void) ddi_dma_sync(mpt->m_dma_free_queue_hdl, 0, 0,
12922             DDI_DMA_SYNC_FORDEV);
12923 
12924         /*
12925          * Initialize the reply free index to one past the last frame on the
12926          * queue.  This will signify that the queue is empty to start with.
12927          */
12928         mpt->m_free_index = i;
12929         ddi_put32(mpt->m_datap, &mpt->m_reg->ReplyFreeHostIndex, i);
12930 
12931         /*
12932          * Initialize the reply post queue to 0xFFFFFFFF,0xFFFFFFFF's.
12933          */
12934         for (i = 0; i < mpt->m_post_queue_depth; i++) {
12935                 ddi_put64(mpt->m_acc_post_queue_hdl,
12936                     &((uint64_t *)(void *)mpt->m_post_queue)[i],
12937                     0xFFFFFFFFFFFFFFFF);
12938         }
12939         (void) ddi_dma_sync(mpt->m_dma_post_queue_hdl, 0, 0,
12940             DDI_DMA_SYNC_FORDEV);
12941 
12942         /*
12943          * Enable ports
12944          */
12945         if (mptsas_ioc_enable_port(mpt) == DDI_FAILURE) {
12946                 mptsas_log(mpt, CE_WARN, "mptsas_ioc_enable_port failed");
12947                 goto fail;
12948         }
12949 
12950         /*
12951          * enable events
12952          */
12953         if (mptsas_ioc_enable_event_notification(mpt)) {
12954                 mptsas_log(mpt, CE_WARN,
12955                     "mptsas_ioc_enable_event_notification failed");
12956                 goto fail;
12957         }
12958 
12959         /*
12960          * We need checks in attach and these.
12961          * chip_init is called in mult. places
12962          */
12963 
12964         if ((mptsas_check_dma_handle(mpt->m_dma_req_frame_hdl) !=
12965             DDI_SUCCESS) ||
12966             (mptsas_check_dma_handle(mpt->m_dma_req_sense_hdl) !=
12967             DDI_SUCCESS) ||
12968             (mptsas_check_dma_handle(mpt->m_dma_reply_frame_hdl) !=
12969             DDI_SUCCESS) ||
12970             (mptsas_check_dma_handle(mpt->m_dma_free_queue_hdl) !=
12971             DDI_SUCCESS) ||
12972             (mptsas_check_dma_handle(mpt->m_dma_post_queue_hdl) !=
12973             DDI_SUCCESS) ||
12974             (mptsas_check_dma_handle(mpt->m_hshk_dma_hdl) !=
12975             DDI_SUCCESS)) {
12976                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
12977                 goto fail;
12978         }
12979 
12980         /* Check all acc handles */
12981         if ((mptsas_check_acc_handle(mpt->m_datap) != DDI_SUCCESS) ||
12982             (mptsas_check_acc_handle(mpt->m_acc_req_frame_hdl) !=
12983             DDI_SUCCESS) ||
12984             (mptsas_check_acc_handle(mpt->m_acc_req_sense_hdl) !=
12985             DDI_SUCCESS) ||
12986             (mptsas_check_acc_handle(mpt->m_acc_reply_frame_hdl) !=
12987             DDI_SUCCESS) ||
12988             (mptsas_check_acc_handle(mpt->m_acc_free_queue_hdl) !=
12989             DDI_SUCCESS) ||
12990             (mptsas_check_acc_handle(mpt->m_acc_post_queue_hdl) !=
12991             DDI_SUCCESS) ||
12992             (mptsas_check_acc_handle(mpt->m_hshk_acc_hdl) !=
12993             DDI_SUCCESS) ||
12994             (mptsas_check_acc_handle(mpt->m_config_handle) !=
12995             DDI_SUCCESS)) {
12996                 ddi_fm_service_impact(mpt->m_dip, DDI_SERVICE_UNAFFECTED);
12997                 goto fail;
12998         }
12999 
13000         return (DDI_SUCCESS);
13001 
13002 fail:
13003         return (DDI_FAILURE);
13004 }
13005 
13006 static int
13007 mptsas_get_pci_cap(mptsas_t *mpt)
13008 {
13009         ushort_t caps_ptr, cap, cap_count;
13010 
13011         if (mpt->m_config_handle == NULL)
13012                 return (FALSE);
13013         /*
13014          * Check if capabilities list is supported and if so,
13015          * get initial capabilities pointer and clear bits 0,1.
13016          */
13017         if (pci_config_get16(mpt->m_config_handle, PCI_CONF_STAT)
13018             & PCI_STAT_CAP) {
13019                 caps_ptr = P2ALIGN(pci_config_get8(mpt->m_config_handle,
13020                     PCI_CONF_CAP_PTR), 4);
13021         } else {
13022                 caps_ptr = PCI_CAP_NEXT_PTR_NULL;
13023         }
13024 
13025         /*
13026          * Walk capabilities if supported.
13027          */
13028         for (cap_count = 0; caps_ptr != PCI_CAP_NEXT_PTR_NULL; ) {
13029 
13030                 /*
13031                  * Check that we haven't exceeded the maximum number of
13032                  * capabilities and that the pointer is in a valid range.
13033                  */
13034                 if (++cap_count > 48) {
13035                         mptsas_log(mpt, CE_WARN,
13036                             "too many device capabilities.\n");
13037                         break;
13038                 }
13039                 if (caps_ptr < 64) {
13040                         mptsas_log(mpt, CE_WARN,
13041                             "capabilities pointer 0x%x out of range.\n",
13042                             caps_ptr);
13043                         break;
13044                 }
13045 
13046                 /*
13047                  * Get next capability and check that it is valid.
13048                  * For now, we only support power management.
13049                  */
13050                 cap = pci_config_get8(mpt->m_config_handle, caps_ptr);
13051                 switch (cap) {
13052                         case PCI_CAP_ID_PM:
13053                                 mptsas_log(mpt, CE_NOTE,
13054                                     "?mptsas%d supports power management.\n",
13055                                     mpt->m_instance);
13056                                 mpt->m_options |= MPTSAS_OPT_PM;
13057 
13058                                 /* Save PMCSR offset */
13059                                 mpt->m_pmcsr_offset = caps_ptr + PCI_PMCSR;
13060                                 break;
13061                         /*
13062                          * The following capabilities are valid.  Any others
13063                          * will cause a message to be logged.
13064                          */
13065                         case PCI_CAP_ID_VPD:
13066                         case PCI_CAP_ID_MSI:
13067                         case PCI_CAP_ID_PCIX:
13068                         case PCI_CAP_ID_PCI_E:
13069                         case PCI_CAP_ID_MSI_X:
13070                                 break;
13071                         default:
13072                                 mptsas_log(mpt, CE_NOTE,
13073                                     "?mptsas%d unrecognized capability "
13074                                     "0x%x.\n", mpt->m_instance, cap);
13075                                 break;
13076                 }
13077 
13078                 /*
13079                  * Get next capabilities pointer and clear bits 0,1.
13080                  */
13081                 caps_ptr = P2ALIGN(pci_config_get8(mpt->m_config_handle,
13082                     (caps_ptr + PCI_CAP_NEXT_PTR)), 4);
13083         }
13084         return (TRUE);
13085 }
13086 
13087 static int
13088 mptsas_init_pm(mptsas_t *mpt)
13089 {
13090         char            pmc_name[16];
13091         char            *pmc[] = {
13092                                 NULL,
13093                                 "0=Off (PCI D3 State)",
13094                                 "3=On (PCI D0 State)",
13095                                 NULL
13096                         };
13097         uint16_t        pmcsr_stat;
13098 
13099         if (mptsas_get_pci_cap(mpt) == FALSE) {
13100                 return (DDI_FAILURE);
13101         }
13102         /*
13103          * If PCI's capability does not support PM, then don't need
13104          * to registe the pm-components
13105          */
13106         if (!(mpt->m_options & MPTSAS_OPT_PM))
13107                 return (DDI_SUCCESS);
13108         /*
13109          * If power management is supported by this chip, create
13110          * pm-components property for the power management framework
13111          */
13112         (void) sprintf(pmc_name, "NAME=mptsas%d", mpt->m_instance);
13113         pmc[0] = pmc_name;
13114         if (ddi_prop_update_string_array(DDI_DEV_T_NONE, mpt->m_dip,
13115             "pm-components", pmc, 3) != DDI_PROP_SUCCESS) {
13116                 mpt->m_options &= ~MPTSAS_OPT_PM;
13117                 mptsas_log(mpt, CE_WARN,
13118                     "mptsas%d: pm-component property creation failed.",
13119                     mpt->m_instance);
13120                 return (DDI_FAILURE);
13121         }
13122 
13123         /*
13124          * Power on device.
13125          */
13126         (void) pm_busy_component(mpt->m_dip, 0);
13127         pmcsr_stat = pci_config_get16(mpt->m_config_handle,
13128             mpt->m_pmcsr_offset);
13129         if ((pmcsr_stat & PCI_PMCSR_STATE_MASK) != PCI_PMCSR_D0) {
13130                 mptsas_log(mpt, CE_WARN, "mptsas%d: Power up the device",
13131                     mpt->m_instance);
13132                 pci_config_put16(mpt->m_config_handle, mpt->m_pmcsr_offset,
13133                     PCI_PMCSR_D0);
13134         }
13135         if (pm_power_has_changed(mpt->m_dip, 0, PM_LEVEL_D0) != DDI_SUCCESS) {
13136                 mptsas_log(mpt, CE_WARN, "pm_power_has_changed failed");
13137                 return (DDI_FAILURE);
13138         }
13139         mpt->m_power_level = PM_LEVEL_D0;
13140         /*
13141          * Set pm idle delay.
13142          */
13143         mpt->m_pm_idle_delay = ddi_prop_get_int(DDI_DEV_T_ANY,
13144             mpt->m_dip, 0, "mptsas-pm-idle-delay", MPTSAS_PM_IDLE_TIMEOUT);
13145 
13146         return (DDI_SUCCESS);
13147 }
13148 
13149 static int
13150 mptsas_register_intrs(mptsas_t *mpt)
13151 {
13152         dev_info_t *dip;
13153         int intr_types;
13154 
13155         dip = mpt->m_dip;
13156 
13157         /* Get supported interrupt types */
13158         if (ddi_intr_get_supported_types(dip, &intr_types) != DDI_SUCCESS) {
13159                 mptsas_log(mpt, CE_WARN, "ddi_intr_get_supported_types "
13160                     "failed\n");
13161                 return (FALSE);
13162         }
13163 
13164         NDBG6(("ddi_intr_get_supported_types() returned: 0x%x", intr_types));
13165 
13166         /*
13167          * Try MSI, but fall back to FIXED
13168          */
13169         if (mptsas_enable_msi && (intr_types & DDI_INTR_TYPE_MSI)) {
13170                 if (mptsas_add_intrs(mpt, DDI_INTR_TYPE_MSI) == DDI_SUCCESS) {
13171                         NDBG0(("Using MSI interrupt type"));
13172                         mpt->m_intr_type = DDI_INTR_TYPE_MSI;
13173                         return (TRUE);
13174                 }
13175         }
13176         if (intr_types & DDI_INTR_TYPE_FIXED) {
13177                 if (mptsas_add_intrs(mpt, DDI_INTR_TYPE_FIXED) == DDI_SUCCESS) {
13178                         NDBG0(("Using FIXED interrupt type"));
13179                         mpt->m_intr_type = DDI_INTR_TYPE_FIXED;
13180                         return (TRUE);
13181                 } else {
13182                         NDBG0(("FIXED interrupt registration failed"));
13183                         return (FALSE);
13184                 }
13185         }
13186 
13187         return (FALSE);
13188 }
13189 
13190 static void
13191 mptsas_unregister_intrs(mptsas_t *mpt)
13192 {
13193         mptsas_rem_intrs(mpt);
13194 }
13195 
13196 /*
13197  * mptsas_add_intrs:
13198  *
13199  * Register FIXED or MSI interrupts.
13200  */
13201 static int
13202 mptsas_add_intrs(mptsas_t *mpt, int intr_type)
13203 {
13204         dev_info_t      *dip = mpt->m_dip;
13205         int             avail, actual, count = 0;
13206         int             i, flag, ret;
13207 
13208         NDBG6(("mptsas_add_intrs:interrupt type 0x%x", intr_type));
13209 
13210         /* Get number of interrupts */
13211         ret = ddi_intr_get_nintrs(dip, intr_type, &count);
13212         if ((ret != DDI_SUCCESS) || (count <= 0)) {
13213                 mptsas_log(mpt, CE_WARN, "ddi_intr_get_nintrs() failed, "
13214                     "ret %d count %d\n", ret, count);
13215 
13216                 return (DDI_FAILURE);
13217         }
13218 
13219         /* Get number of available interrupts */
13220         ret = ddi_intr_get_navail(dip, intr_type, &avail);
13221         if ((ret != DDI_SUCCESS) || (avail == 0)) {
13222                 mptsas_log(mpt, CE_WARN, "ddi_intr_get_navail() failed, "
13223                     "ret %d avail %d\n", ret, avail);
13224 
13225                 return (DDI_FAILURE);
13226         }
13227 
13228         if (avail < count) {
13229                 mptsas_log(mpt, CE_NOTE, "ddi_intr_get_nvail returned %d, "
13230                     "navail() returned %d", count, avail);
13231         }
13232 
13233         /* Mpt only have one interrupt routine */
13234         if ((intr_type == DDI_INTR_TYPE_MSI) && (count > 1)) {
13235                 count = 1;
13236         }
13237 
13238         /* Allocate an array of interrupt handles */
13239         mpt->m_intr_size = count * sizeof (ddi_intr_handle_t);
13240         mpt->m_htable = kmem_alloc(mpt->m_intr_size, KM_SLEEP);
13241 
13242         flag = DDI_INTR_ALLOC_NORMAL;
13243 
13244         /* call ddi_intr_alloc() */
13245         ret = ddi_intr_alloc(dip, mpt->m_htable, intr_type, 0,
13246             count, &actual, flag);
13247 
13248         if ((ret != DDI_SUCCESS) || (actual == 0)) {
13249                 mptsas_log(mpt, CE_WARN, "ddi_intr_alloc() failed, ret %d\n",
13250                     ret);
13251                 kmem_free(mpt->m_htable, mpt->m_intr_size);
13252                 return (DDI_FAILURE);
13253         }
13254 
13255         /* use interrupt count returned or abort? */
13256         if (actual < count) {
13257                 mptsas_log(mpt, CE_NOTE, "Requested: %d, Received: %d\n",
13258                     count, actual);
13259         }
13260 
13261         mpt->m_intr_cnt = actual;
13262 
13263         /*
13264          * Get priority for first msi, assume remaining are all the same
13265          */
13266         if ((ret = ddi_intr_get_pri(mpt->m_htable[0],
13267             &mpt->m_intr_pri)) != DDI_SUCCESS) {
13268                 mptsas_log(mpt, CE_WARN, "ddi_intr_get_pri() failed %d\n", ret);
13269 
13270                 /* Free already allocated intr */
13271                 for (i = 0; i < actual; i++) {
13272                         (void) ddi_intr_free(mpt->m_htable[i]);
13273                 }
13274 
13275                 kmem_free(mpt->m_htable, mpt->m_intr_size);
13276                 return (DDI_FAILURE);
13277         }
13278 
13279         /* Test for high level mutex */
13280         if (mpt->m_intr_pri >= ddi_intr_get_hilevel_pri()) {
13281                 mptsas_log(mpt, CE_WARN, "mptsas_add_intrs: "
13282                     "Hi level interrupt not supported\n");
13283 
13284                 /* Free already allocated intr */
13285                 for (i = 0; i < actual; i++) {
13286                         (void) ddi_intr_free(mpt->m_htable[i]);
13287                 }
13288 
13289                 kmem_free(mpt->m_htable, mpt->m_intr_size);
13290                 return (DDI_FAILURE);
13291         }
13292 
13293         /* Call ddi_intr_add_handler() */
13294         for (i = 0; i < actual; i++) {
13295                 if ((ret = ddi_intr_add_handler(mpt->m_htable[i], mptsas_intr,
13296                     (caddr_t)mpt, (caddr_t)(uintptr_t)i)) != DDI_SUCCESS) {
13297                         mptsas_log(mpt, CE_WARN, "ddi_intr_add_handler() "
13298                             "failed %d\n", ret);
13299 
13300                         /* Free already allocated intr */
13301                         for (i = 0; i < actual; i++) {
13302                                 (void) ddi_intr_free(mpt->m_htable[i]);
13303                         }
13304 
13305                         kmem_free(mpt->m_htable, mpt->m_intr_size);
13306                         return (DDI_FAILURE);
13307                 }
13308         }
13309 
13310         if ((ret = ddi_intr_get_cap(mpt->m_htable[0], &mpt->m_intr_cap))
13311             != DDI_SUCCESS) {
13312                 mptsas_log(mpt, CE_WARN, "ddi_intr_get_cap() failed %d\n", ret);
13313 
13314                 /* Free already allocated intr */
13315                 for (i = 0; i < actual; i++) {
13316                         (void) ddi_intr_free(mpt->m_htable[i]);
13317                 }
13318 
13319                 kmem_free(mpt->m_htable, mpt->m_intr_size);
13320                 return (DDI_FAILURE);
13321         }
13322 
13323         /*
13324          * Enable interrupts
13325          */
13326         if (mpt->m_intr_cap & DDI_INTR_FLAG_BLOCK) {
13327                 /* Call ddi_intr_block_enable() for MSI interrupts */
13328                 (void) ddi_intr_block_enable(mpt->m_htable, mpt->m_intr_cnt);
13329         } else {
13330                 /* Call ddi_intr_enable for MSI or FIXED interrupts */
13331                 for (i = 0; i < mpt->m_intr_cnt; i++) {
13332                         (void) ddi_intr_enable(mpt->m_htable[i]);
13333                 }
13334         }
13335         return (DDI_SUCCESS);
13336 }
13337 
13338 /*
13339  * mptsas_rem_intrs:
13340  *
13341  * Unregister FIXED or MSI interrupts
13342  */
13343 static void
13344 mptsas_rem_intrs(mptsas_t *mpt)
13345 {
13346         int     i;
13347 
13348         NDBG6(("mptsas_rem_intrs"));
13349 
13350         /* Disable all interrupts */
13351         if (mpt->m_intr_cap & DDI_INTR_FLAG_BLOCK) {
13352                 /* Call ddi_intr_block_disable() */
13353                 (void) ddi_intr_block_disable(mpt->m_htable, mpt->m_intr_cnt);
13354         } else {
13355                 for (i = 0; i < mpt->m_intr_cnt; i++) {
13356                         (void) ddi_intr_disable(mpt->m_htable[i]);
13357                 }
13358         }
13359 
13360         /* Call ddi_intr_remove_handler() */
13361         for (i = 0; i < mpt->m_intr_cnt; i++) {
13362                 (void) ddi_intr_remove_handler(mpt->m_htable[i]);
13363                 (void) ddi_intr_free(mpt->m_htable[i]);
13364         }
13365 
13366         kmem_free(mpt->m_htable, mpt->m_intr_size);
13367 }
13368 
13369 /*
13370  * The IO fault service error handling callback function
13371  */
13372 /*ARGSUSED*/
13373 static int
13374 mptsas_fm_error_cb(dev_info_t *dip, ddi_fm_error_t *err, const void *impl_data)
13375 {
13376         /*
13377          * as the driver can always deal with an error in any dma or
13378          * access handle, we can just return the fme_status value.
13379          */
13380         pci_ereport_post(dip, err, NULL);
13381         return (err->fme_status);
13382 }
13383 
13384 /*
13385  * mptsas_fm_init - initialize fma capabilities and register with IO
13386  *               fault services.
13387  */
13388 static void
13389 mptsas_fm_init(mptsas_t *mpt)
13390 {
13391         /*
13392          * Need to change iblock to priority for new MSI intr
13393          */
13394         ddi_iblock_cookie_t     fm_ibc;
13395 
13396         /* Only register with IO Fault Services if we have some capability */
13397         if (mpt->m_fm_capabilities) {
13398                 /* Adjust access and dma attributes for FMA */
13399                 mpt->m_reg_acc_attr.devacc_attr_access = DDI_FLAGERR_ACC;
13400                 mpt->m_msg_dma_attr.dma_attr_flags |= DDI_DMA_FLAGERR;
13401                 mpt->m_io_dma_attr.dma_attr_flags |= DDI_DMA_FLAGERR;
13402 
13403                 /*
13404                  * Register capabilities with IO Fault Services.
13405                  * mpt->m_fm_capabilities will be updated to indicate
13406                  * capabilities actually supported (not requested.)
13407                  */
13408                 ddi_fm_init(mpt->m_dip, &mpt->m_fm_capabilities, &fm_ibc);
13409 
13410                 /*
13411                  * Initialize pci ereport capabilities if ereport
13412                  * capable (should always be.)
13413                  */
13414                 if (DDI_FM_EREPORT_CAP(mpt->m_fm_capabilities) ||
13415                     DDI_FM_ERRCB_CAP(mpt->m_fm_capabilities)) {
13416                         pci_ereport_setup(mpt->m_dip);
13417                 }
13418 
13419                 /*
13420                  * Register error callback if error callback capable.
13421                  */
13422                 if (DDI_FM_ERRCB_CAP(mpt->m_fm_capabilities)) {
13423                         ddi_fm_handler_register(mpt->m_dip,
13424                             mptsas_fm_error_cb, (void *) mpt);
13425                 }
13426         }
13427 }
13428 
13429 /*
13430  * mptsas_fm_fini - Releases fma capabilities and un-registers with IO
13431  *               fault services.
13432  *
13433  */
13434 static void
13435 mptsas_fm_fini(mptsas_t *mpt)
13436 {
13437         /* Only unregister FMA capabilities if registered */
13438         if (mpt->m_fm_capabilities) {
13439 
13440                 /*
13441                  * Un-register error callback if error callback capable.
13442                  */
13443 
13444                 if (DDI_FM_ERRCB_CAP(mpt->m_fm_capabilities)) {
13445                         ddi_fm_handler_unregister(mpt->m_dip);
13446                 }
13447 
13448                 /*
13449                  * Release any resources allocated by pci_ereport_setup()
13450                  */
13451 
13452                 if (DDI_FM_EREPORT_CAP(mpt->m_fm_capabilities) ||
13453                     DDI_FM_ERRCB_CAP(mpt->m_fm_capabilities)) {
13454                         pci_ereport_teardown(mpt->m_dip);
13455                 }
13456 
13457                 /* Unregister from IO Fault Services */
13458                 ddi_fm_fini(mpt->m_dip);
13459 
13460                 /* Adjust access and dma attributes for FMA */
13461                 mpt->m_reg_acc_attr.devacc_attr_access = DDI_DEFAULT_ACC;
13462                 mpt->m_msg_dma_attr.dma_attr_flags &= ~DDI_DMA_FLAGERR;
13463                 mpt->m_io_dma_attr.dma_attr_flags &= ~DDI_DMA_FLAGERR;
13464 
13465         }
13466 }
13467 
13468 int
13469 mptsas_check_acc_handle(ddi_acc_handle_t handle)
13470 {
13471         ddi_fm_error_t  de;
13472 
13473         if (handle == NULL)
13474                 return (DDI_FAILURE);
13475         ddi_fm_acc_err_get(handle, &de, DDI_FME_VER0);
13476         return (de.fme_status);
13477 }
13478 
13479 int
13480 mptsas_check_dma_handle(ddi_dma_handle_t handle)
13481 {
13482         ddi_fm_error_t  de;
13483 
13484         if (handle == NULL)
13485                 return (DDI_FAILURE);
13486         ddi_fm_dma_err_get(handle, &de, DDI_FME_VER0);
13487         return (de.fme_status);
13488 }
13489 
13490 void
13491 mptsas_fm_ereport(mptsas_t *mpt, char *detail)
13492 {
13493         uint64_t        ena;
13494         char            buf[FM_MAX_CLASS];
13495 
13496         (void) snprintf(buf, FM_MAX_CLASS, "%s.%s", DDI_FM_DEVICE, detail);
13497         ena = fm_ena_generate(0, FM_ENA_FMT1);
13498         if (DDI_FM_EREPORT_CAP(mpt->m_fm_capabilities)) {
13499                 ddi_fm_ereport_post(mpt->m_dip, buf, ena, DDI_NOSLEEP,
13500                     FM_VERSION, DATA_TYPE_UINT8, FM_EREPORT_VERS0, NULL);
13501         }
13502 }
13503 
13504 static int
13505 mptsas_get_target_device_info(mptsas_t *mpt, uint32_t page_address,
13506     uint16_t *dev_handle, mptsas_target_t **pptgt)
13507 {
13508         int             rval;
13509         uint32_t        dev_info;
13510         uint64_t        sas_wwn;
13511         mptsas_phymask_t phymask;
13512         uint8_t         physport, phynum, config, disk;
13513         uint64_t        devicename;
13514         uint16_t        pdev_hdl;
13515         mptsas_target_t *tmp_tgt = NULL;
13516         uint16_t        bay_num, enclosure, io_flags;
13517 
13518         ASSERT(*pptgt == NULL);
13519 
13520         rval = mptsas_get_sas_device_page0(mpt, page_address, dev_handle,
13521             &sas_wwn, &dev_info, &physport, &phynum, &pdev_hdl,
13522             &bay_num, &enclosure, &io_flags);
13523         if (rval != DDI_SUCCESS) {
13524                 rval = DEV_INFO_FAIL_PAGE0;
13525                 return (rval);
13526         }
13527 
13528         if ((dev_info & (MPI2_SAS_DEVICE_INFO_SSP_TARGET |
13529             MPI2_SAS_DEVICE_INFO_SATA_DEVICE |
13530             MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE)) == NULL) {
13531                 rval = DEV_INFO_WRONG_DEVICE_TYPE;
13532                 return (rval);
13533         }
13534 
13535         /*
13536          * Check if the dev handle is for a Phys Disk. If so, set return value
13537          * and exit.  Don't add Phys Disks to hash.
13538          */
13539         for (config = 0; config < mpt->m_num_raid_configs; config++) {
13540                 for (disk = 0; disk < MPTSAS_MAX_DISKS_IN_CONFIG; disk++) {
13541                         if (*dev_handle == mpt->m_raidconfig[config].
13542                             m_physdisk_devhdl[disk]) {
13543                                 rval = DEV_INFO_PHYS_DISK;
13544                                 return (rval);
13545                         }
13546                 }
13547         }
13548 
13549         /*
13550          * Get SATA Device Name from SAS device page0 for
13551          * sata device, if device name doesn't exist, set mta_wwn to
13552          * 0 for direct attached SATA. For the device behind the expander
13553          * we still can use STP address assigned by expander.
13554          */
13555         if (dev_info & (MPI2_SAS_DEVICE_INFO_SATA_DEVICE |
13556             MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE)) {
13557                 mutex_exit(&mpt->m_mutex);
13558                 /* alloc a tmp_tgt to send the cmd */
13559                 tmp_tgt = kmem_zalloc(sizeof (struct mptsas_target),
13560                     KM_SLEEP);
13561                 tmp_tgt->m_devhdl = *dev_handle;
13562                 tmp_tgt->m_deviceinfo = dev_info;
13563                 tmp_tgt->m_qfull_retries = QFULL_RETRIES;
13564                 tmp_tgt->m_qfull_retry_interval =
13565                     drv_usectohz(QFULL_RETRY_INTERVAL * 1000);
13566                 tmp_tgt->m_t_throttle = MAX_THROTTLE;
13567                 devicename = mptsas_get_sata_guid(mpt, tmp_tgt, 0);
13568                 kmem_free(tmp_tgt, sizeof (struct mptsas_target));
13569                 mutex_enter(&mpt->m_mutex);
13570                 if (devicename != 0 && (((devicename >> 56) & 0xf0) == 0x50)) {
13571                         sas_wwn = devicename;
13572                 } else if (dev_info & MPI2_SAS_DEVICE_INFO_DIRECT_ATTACH) {
13573                         sas_wwn = 0;
13574                 }
13575         }
13576 
13577         phymask = mptsas_physport_to_phymask(mpt, physport);
13578         *pptgt = mptsas_tgt_alloc(mpt, *dev_handle, sas_wwn,
13579             dev_info, phymask, phynum);
13580         if (*pptgt == NULL) {
13581                 mptsas_log(mpt, CE_WARN, "Failed to allocated target"
13582                     "structure!");
13583                 rval = DEV_INFO_FAIL_ALLOC;
13584                 return (rval);
13585         }
13586         (*pptgt)->m_io_flags = io_flags;
13587         (*pptgt)->m_enclosure = enclosure;
13588         (*pptgt)->m_slot_num = bay_num;
13589         return (DEV_INFO_SUCCESS);
13590 }
13591 
13592 uint64_t
13593 mptsas_get_sata_guid(mptsas_t *mpt, mptsas_target_t *ptgt, int lun)
13594 {
13595         uint64_t        sata_guid = 0, *pwwn = NULL;
13596         int             target = ptgt->m_devhdl;
13597         uchar_t         *inq83 = NULL;
13598         int             inq83_len = 0xFF;
13599         uchar_t         *dblk = NULL;
13600         int             inq83_retry = 3;
13601         int             rval = DDI_FAILURE;
13602 
13603         inq83   = kmem_zalloc(inq83_len, KM_SLEEP);
13604 
13605 inq83_retry:
13606         rval = mptsas_inquiry(mpt, ptgt, lun, 0x83, inq83,
13607             inq83_len, NULL, 1);
13608         if (rval != DDI_SUCCESS) {
13609                 mptsas_log(mpt, CE_WARN, "!mptsas request inquiry page "
13610                     "0x83 for target:%x, lun:%x failed!", target, lun);
13611                 goto out;
13612         }
13613         /* According to SAT2, the first descriptor is logic unit name */
13614         dblk = &inq83[4];
13615         if ((dblk[1] & 0x30) != 0) {
13616                 mptsas_log(mpt, CE_WARN, "!Descriptor is not lun associated.");
13617                 goto out;
13618         }
13619         pwwn = (uint64_t *)(void *)(&dblk[4]);
13620         if ((dblk[4] & 0xf0) == 0x50) {
13621                 sata_guid = BE_64(*pwwn);
13622                 goto out;
13623         } else if (dblk[4] == 'A') {
13624                 NDBG20(("SATA drive has no NAA format GUID."));
13625                 goto out;
13626         } else {
13627                 /* The data is not ready, wait and retry */
13628                 inq83_retry--;
13629                 if (inq83_retry <= 0) {
13630                         goto out;
13631                 }
13632                 NDBG20(("The GUID is not ready, retry..."));
13633                 delay(drv_sectohz(1));
13634                 goto inq83_retry;
13635         }
13636 out:
13637         kmem_free(inq83, inq83_len);
13638         return (sata_guid);
13639 }
13640 
13641 static int
13642 mptsas_inquiry(mptsas_t *mpt, mptsas_target_t *ptgt, int lun, uchar_t page,
13643     unsigned char *buf, int len, int *reallen, uchar_t evpd)
13644 {
13645         uchar_t                 cdb[CDB_GROUP0];
13646         struct scsi_address     ap;
13647         struct buf              *data_bp = NULL;
13648         int                     resid = 0;
13649         int                     ret = DDI_FAILURE;
13650 
13651         ASSERT(len <= 0xffff);
13652 
13653         ap.a_target = MPTSAS_INVALID_DEVHDL;
13654         ap.a_lun = (uchar_t)(lun);
13655         ap.a_hba_tran = mpt->m_tran;
13656 
13657         data_bp = scsi_alloc_consistent_buf(&ap,
13658             (struct buf *)NULL, len, B_READ, NULL_FUNC, NULL);
13659         if (data_bp == NULL) {
13660                 return (ret);
13661         }
13662         bzero(cdb, CDB_GROUP0);
13663         cdb[0] = SCMD_INQUIRY;
13664         cdb[1] = evpd;
13665         cdb[2] = page;
13666         cdb[3] = (len & 0xff00) >> 8;
13667         cdb[4] = (len & 0x00ff);
13668         cdb[5] = 0;
13669 
13670         ret = mptsas_send_scsi_cmd(mpt, &ap, ptgt, &cdb[0], CDB_GROUP0, data_bp,
13671             &resid);
13672         if (ret == DDI_SUCCESS) {
13673                 if (reallen) {
13674                         *reallen = len - resid;
13675                 }
13676                 bcopy((caddr_t)data_bp->b_un.b_addr, buf, len);
13677         }
13678         if (data_bp) {
13679                 scsi_free_consistent_buf(data_bp);
13680         }
13681         return (ret);
13682 }
13683 
13684 static int
13685 mptsas_send_scsi_cmd(mptsas_t *mpt, struct scsi_address *ap,
13686     mptsas_target_t *ptgt, uchar_t *cdb, int cdblen, struct buf *data_bp,
13687     int *resid)
13688 {
13689         struct scsi_pkt         *pktp = NULL;
13690         scsi_hba_tran_t         *tran_clone = NULL;
13691         mptsas_tgt_private_t    *tgt_private = NULL;
13692         int                     ret = DDI_FAILURE;
13693 
13694         /*
13695          * scsi_hba_tran_t->tran_tgt_private is used to pass the address
13696          * information to scsi_init_pkt, allocate a scsi_hba_tran structure
13697          * to simulate the cmds from sd
13698          */
13699         tran_clone = kmem_alloc(
13700             sizeof (scsi_hba_tran_t), KM_SLEEP);
13701         if (tran_clone == NULL) {
13702                 goto out;
13703         }
13704         bcopy((caddr_t)mpt->m_tran,
13705             (caddr_t)tran_clone, sizeof (scsi_hba_tran_t));
13706         tgt_private = kmem_alloc(
13707             sizeof (mptsas_tgt_private_t), KM_SLEEP);
13708         if (tgt_private == NULL) {
13709                 goto out;
13710         }
13711         tgt_private->t_lun = ap->a_lun;
13712         tgt_private->t_private = ptgt;
13713         tran_clone->tran_tgt_private = tgt_private;
13714         ap->a_hba_tran = tran_clone;
13715 
13716         pktp = scsi_init_pkt(ap, (struct scsi_pkt *)NULL,
13717             data_bp, cdblen, sizeof (struct scsi_arq_status),
13718             0, PKT_CONSISTENT, NULL, NULL);
13719         if (pktp == NULL) {
13720                 goto out;
13721         }
13722         bcopy(cdb, pktp->pkt_cdbp, cdblen);
13723         pktp->pkt_flags = FLAG_NOPARITY;
13724         if (scsi_poll(pktp) < 0) {
13725                 goto out;
13726         }
13727         if (((struct scsi_status *)pktp->pkt_scbp)->sts_chk) {
13728                 goto out;
13729         }
13730         if (resid != NULL) {
13731                 *resid = pktp->pkt_resid;
13732         }
13733 
13734         ret = DDI_SUCCESS;
13735 out:
13736         if (pktp) {
13737                 scsi_destroy_pkt(pktp);
13738         }
13739         if (tran_clone) {
13740                 kmem_free(tran_clone, sizeof (scsi_hba_tran_t));
13741         }
13742         if (tgt_private) {
13743                 kmem_free(tgt_private, sizeof (mptsas_tgt_private_t));
13744         }
13745         return (ret);
13746 }
13747 static int
13748 mptsas_parse_address(char *name, uint64_t *wwid, uint8_t *phy, int *lun)
13749 {
13750         char    *cp = NULL;
13751         char    *ptr = NULL;
13752         size_t  s = 0;
13753         char    *wwid_str = NULL;
13754         char    *lun_str = NULL;
13755         long    lunnum;
13756         long    phyid = -1;
13757         int     rc = DDI_FAILURE;
13758 
13759         ptr = name;
13760         ASSERT(ptr[0] == 'w' || ptr[0] == 'p');
13761         ptr++;
13762         if ((cp = strchr(ptr, ',')) == NULL) {
13763                 return (DDI_FAILURE);
13764         }
13765 
13766         wwid_str = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
13767         s = (uintptr_t)cp - (uintptr_t)ptr;
13768 
13769         bcopy(ptr, wwid_str, s);
13770         wwid_str[s] = '\0';
13771 
13772         ptr = ++cp;
13773 
13774         if ((cp = strchr(ptr, '\0')) == NULL) {
13775                 goto out;
13776         }
13777         lun_str =  kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
13778         s = (uintptr_t)cp - (uintptr_t)ptr;
13779 
13780         bcopy(ptr, lun_str, s);
13781         lun_str[s] = '\0';
13782 
13783         if (name[0] == 'p') {
13784                 rc = ddi_strtol(wwid_str, NULL, 0x10, &phyid);
13785         } else {
13786                 rc = scsi_wwnstr_to_wwn(wwid_str, wwid);
13787         }
13788         if (rc != DDI_SUCCESS)
13789                 goto out;
13790 
13791         if (phyid != -1) {
13792                 ASSERT(phyid < MPTSAS_MAX_PHYS);
13793                 *phy = (uint8_t)phyid;
13794         }
13795         rc = ddi_strtol(lun_str, NULL, 0x10, &lunnum);
13796         if (rc != 0)
13797                 goto out;
13798 
13799         *lun = (int)lunnum;
13800         rc = DDI_SUCCESS;
13801 out:
13802         if (wwid_str)
13803                 kmem_free(wwid_str, SCSI_MAXNAMELEN);
13804         if (lun_str)
13805                 kmem_free(lun_str, SCSI_MAXNAMELEN);
13806 
13807         return (rc);
13808 }
13809 
13810 /*
13811  * mptsas_parse_smp_name() is to parse sas wwn string
13812  * which format is "wWWN"
13813  */
13814 static int
13815 mptsas_parse_smp_name(char *name, uint64_t *wwn)
13816 {
13817         char    *ptr = name;
13818 
13819         if (*ptr != 'w') {
13820                 return (DDI_FAILURE);
13821         }
13822 
13823         ptr++;
13824         if (scsi_wwnstr_to_wwn(ptr, wwn)) {
13825                 return (DDI_FAILURE);
13826         }
13827         return (DDI_SUCCESS);
13828 }
13829 
13830 static int
13831 mptsas_bus_config(dev_info_t *pdip, uint_t flag,
13832     ddi_bus_config_op_t op, void *arg, dev_info_t **childp)
13833 {
13834         int             ret = NDI_FAILURE;
13835         int             circ = 0;
13836         int             circ1 = 0;
13837         mptsas_t        *mpt;
13838         char            *ptr = NULL;
13839         char            *devnm = NULL;
13840         uint64_t        wwid = 0;
13841         uint8_t         phy = 0xFF;
13842         int             lun = 0;
13843         uint_t          mflags = flag;
13844         int             bconfig = TRUE;
13845 
13846         if (scsi_hba_iport_unit_address(pdip) == 0) {
13847                 return (DDI_FAILURE);
13848         }
13849 
13850         mpt = DIP2MPT(pdip);
13851         if (!mpt) {
13852                 return (DDI_FAILURE);
13853         }
13854         /*
13855          * Hold the nexus across the bus_config
13856          */
13857         ndi_devi_enter(scsi_vhci_dip, &circ);
13858         ndi_devi_enter(pdip, &circ1);
13859         switch (op) {
13860         case BUS_CONFIG_ONE:
13861                 /* parse wwid/target name out of name given */
13862                 if ((ptr = strchr((char *)arg, '@')) == NULL) {
13863                         ret = NDI_FAILURE;
13864                         break;
13865                 }
13866                 ptr++;
13867                 if (strncmp((char *)arg, "smp", 3) == 0) {
13868                         /*
13869                          * This is a SMP target device
13870                          */
13871                         ret = mptsas_parse_smp_name(ptr, &wwid);
13872                         if (ret != DDI_SUCCESS) {
13873                                 ret = NDI_FAILURE;
13874                                 break;
13875                         }
13876                         ret = mptsas_config_smp(pdip, wwid, childp);
13877                 } else if ((ptr[0] == 'w') || (ptr[0] == 'p')) {
13878                         /*
13879                          * OBP could pass down a non-canonical form
13880                          * bootpath without LUN part when LUN is 0.
13881                          * So driver need adjust the string.
13882                          */
13883                         if (strchr(ptr, ',') == NULL) {
13884                                 devnm = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
13885                                 (void) sprintf(devnm, "%s,0", (char *)arg);
13886                                 ptr = strchr(devnm, '@');
13887                                 ptr++;
13888                         }
13889 
13890                         /*
13891                          * The device path is wWWID format and the device
13892                          * is not SMP target device.
13893                          */
13894                         ret = mptsas_parse_address(ptr, &wwid, &phy, &lun);
13895                         if (ret != DDI_SUCCESS) {
13896                                 ret = NDI_FAILURE;
13897                                 break;
13898                         }
13899                         *childp = NULL;
13900                         if (ptr[0] == 'w') {
13901                                 ret = mptsas_config_one_addr(pdip, wwid,
13902                                     lun, childp);
13903                         } else if (ptr[0] == 'p') {
13904                                 ret = mptsas_config_one_phy(pdip, phy, lun,
13905                                     childp);
13906                         }
13907 
13908                         /*
13909                          * If this is CD/DVD device in OBP path, the
13910                          * ndi_busop_bus_config can be skipped as config one
13911                          * operation is done above.
13912                          */
13913                         if ((ret == NDI_SUCCESS) && (*childp != NULL) &&
13914                             (strcmp(ddi_node_name(*childp), "cdrom") == 0) &&
13915                             (strncmp((char *)arg, "disk", 4) == 0)) {
13916                                 bconfig = FALSE;
13917                                 ndi_hold_devi(*childp);
13918                         }
13919                 } else {
13920                         ret = NDI_FAILURE;
13921                         break;
13922                 }
13923 
13924                 /*
13925                  * DDI group instructed us to use this flag.
13926                  */
13927                 mflags |= NDI_MDI_FALLBACK;
13928                 break;
13929         case BUS_CONFIG_DRIVER:
13930         case BUS_CONFIG_ALL:
13931                 mptsas_config_all(pdip);
13932                 ret = NDI_SUCCESS;
13933                 break;
13934         }
13935 
13936         if ((ret == NDI_SUCCESS) && bconfig) {
13937                 ret = ndi_busop_bus_config(pdip, mflags, op,
13938                     (devnm == NULL) ? arg : devnm, childp, 0);
13939         }
13940 
13941         ndi_devi_exit(pdip, circ1);
13942         ndi_devi_exit(scsi_vhci_dip, circ);
13943         if (devnm != NULL)
13944                 kmem_free(devnm, SCSI_MAXNAMELEN);
13945         return (ret);
13946 }
13947 
13948 static int
13949 mptsas_probe_lun(dev_info_t *pdip, int lun, dev_info_t **dip,
13950     mptsas_target_t *ptgt)
13951 {
13952         int                     rval = DDI_FAILURE;
13953         struct scsi_inquiry     *sd_inq = NULL;
13954         mptsas_t                *mpt = DIP2MPT(pdip);
13955 
13956         sd_inq = (struct scsi_inquiry *)kmem_alloc(SUN_INQSIZE, KM_SLEEP);
13957 
13958         rval = mptsas_inquiry(mpt, ptgt, lun, 0, (uchar_t *)sd_inq,
13959             SUN_INQSIZE, 0, (uchar_t)0);
13960 
13961         if ((rval == DDI_SUCCESS) && MPTSAS_VALID_LUN(sd_inq)) {
13962                 rval = mptsas_create_lun(pdip, sd_inq, dip, ptgt, lun);
13963         } else {
13964                 rval = DDI_FAILURE;
13965         }
13966 
13967         kmem_free(sd_inq, SUN_INQSIZE);
13968         return (rval);
13969 }
13970 
13971 static int
13972 mptsas_config_one_addr(dev_info_t *pdip, uint64_t sasaddr, int lun,
13973     dev_info_t **lundip)
13974 {
13975         int             rval;
13976         mptsas_t                *mpt = DIP2MPT(pdip);
13977         int             phymask;
13978         mptsas_target_t *ptgt = NULL;
13979 
13980         /*
13981          * Get the physical port associated to the iport
13982          */
13983         phymask = ddi_prop_get_int(DDI_DEV_T_ANY, pdip, 0,
13984             "phymask", 0);
13985 
13986         ptgt = mptsas_wwid_to_ptgt(mpt, phymask, sasaddr);
13987         if (ptgt == NULL) {
13988                 /*
13989                  * didn't match any device by searching
13990                  */
13991                 return (DDI_FAILURE);
13992         }
13993         /*
13994          * If the LUN already exists and the status is online,
13995          * we just return the pointer to dev_info_t directly.
13996          * For the mdi_pathinfo node, we'll handle it in
13997          * mptsas_create_virt_lun()
13998          * TODO should be also in mptsas_handle_dr
13999          */
14000 
14001         *lundip = mptsas_find_child_addr(pdip, sasaddr, lun);
14002         if (*lundip != NULL) {
14003                 /*
14004                  * TODO Another senario is, we hotplug the same disk
14005                  * on the same slot, the devhdl changed, is this
14006                  * possible?
14007                  * tgt_private->t_private != ptgt
14008                  */
14009                 if (sasaddr != ptgt->m_addr.mta_wwn) {
14010                         /*
14011                          * The device has changed although the devhdl is the
14012                          * same (Enclosure mapping mode, change drive on the
14013                          * same slot)
14014                          */
14015                         return (DDI_FAILURE);
14016                 }
14017                 return (DDI_SUCCESS);
14018         }
14019 
14020         if (phymask == 0) {
14021                 /*
14022                  * Configure IR volume
14023                  */
14024                 rval =  mptsas_config_raid(pdip, ptgt->m_devhdl, lundip);
14025                 return (rval);
14026         }
14027         rval = mptsas_probe_lun(pdip, lun, lundip, ptgt);
14028 
14029         return (rval);
14030 }
14031 
14032 static int
14033 mptsas_config_one_phy(dev_info_t *pdip, uint8_t phy, int lun,
14034     dev_info_t **lundip)
14035 {
14036         int             rval;
14037         mptsas_t        *mpt = DIP2MPT(pdip);
14038         mptsas_phymask_t phymask;
14039         mptsas_target_t *ptgt = NULL;
14040 
14041         /*
14042          * Get the physical port associated to the iport
14043          */
14044         phymask = (mptsas_phymask_t)ddi_prop_get_int(DDI_DEV_T_ANY, pdip, 0,
14045             "phymask", 0);
14046 
14047         ptgt = mptsas_phy_to_tgt(mpt, phymask, phy);
14048         if (ptgt == NULL) {
14049                 /*
14050                  * didn't match any device by searching
14051                  */
14052                 return (DDI_FAILURE);
14053         }
14054 
14055         /*
14056          * If the LUN already exists and the status is online,
14057          * we just return the pointer to dev_info_t directly.
14058          * For the mdi_pathinfo node, we'll handle it in
14059          * mptsas_create_virt_lun().
14060          */
14061 
14062         *lundip = mptsas_find_child_phy(pdip, phy);
14063         if (*lundip != NULL) {
14064                 return (DDI_SUCCESS);
14065         }
14066 
14067         rval = mptsas_probe_lun(pdip, lun, lundip, ptgt);
14068 
14069         return (rval);
14070 }
14071 
14072 static int
14073 mptsas_retrieve_lundata(int lun_cnt, uint8_t *buf, uint16_t *lun_num,
14074     uint8_t *lun_addr_type)
14075 {
14076         uint32_t        lun_idx = 0;
14077 
14078         ASSERT(lun_num != NULL);
14079         ASSERT(lun_addr_type != NULL);
14080 
14081         lun_idx = (lun_cnt + 1) * MPTSAS_SCSI_REPORTLUNS_ADDRESS_SIZE;
14082         /* determine report luns addressing type */
14083         switch (buf[lun_idx] & MPTSAS_SCSI_REPORTLUNS_ADDRESS_MASK) {
14084                 /*
14085                  * Vendors in the field have been found to be concatenating
14086                  * bus/target/lun to equal the complete lun value instead
14087                  * of switching to flat space addressing
14088                  */
14089                 /* 00b - peripheral device addressing method */
14090         case MPTSAS_SCSI_REPORTLUNS_ADDRESS_PERIPHERAL:
14091                 /* FALLTHRU */
14092                 /* 10b - logical unit addressing method */
14093         case MPTSAS_SCSI_REPORTLUNS_ADDRESS_LOGICAL_UNIT:
14094                 /* FALLTHRU */
14095                 /* 01b - flat space addressing method */
14096         case MPTSAS_SCSI_REPORTLUNS_ADDRESS_FLAT_SPACE:
14097                 /* byte0 bit0-5=msb lun byte1 bit0-7=lsb lun */
14098                 *lun_addr_type = (buf[lun_idx] &
14099                     MPTSAS_SCSI_REPORTLUNS_ADDRESS_MASK) >> 6;
14100                 *lun_num = (buf[lun_idx] & 0x3F) << 8;
14101                 *lun_num |= buf[lun_idx + 1];
14102                 return (DDI_SUCCESS);
14103         default:
14104                 return (DDI_FAILURE);
14105         }
14106 }
14107 
14108 static int
14109 mptsas_config_luns(dev_info_t *pdip, mptsas_target_t *ptgt)
14110 {
14111         struct buf              *repluns_bp = NULL;
14112         struct scsi_address     ap;
14113         uchar_t                 cdb[CDB_GROUP5];
14114         int                     ret = DDI_FAILURE;
14115         int                     retry = 0;
14116         int                     lun_list_len = 0;
14117         uint16_t                lun_num = 0;
14118         uint8_t                 lun_addr_type = 0;
14119         uint32_t                lun_cnt = 0;
14120         uint32_t                lun_total = 0;
14121         dev_info_t              *cdip = NULL;
14122         uint16_t                *saved_repluns = NULL;
14123         char                    *buffer = NULL;
14124         int                     buf_len = 128;
14125         mptsas_t                *mpt = DIP2MPT(pdip);
14126         uint64_t                sas_wwn = 0;
14127         uint8_t                 phy = 0xFF;
14128         uint32_t                dev_info = 0;
14129 
14130         mutex_enter(&mpt->m_mutex);
14131         sas_wwn = ptgt->m_addr.mta_wwn;
14132         phy = ptgt->m_phynum;
14133         dev_info = ptgt->m_deviceinfo;
14134         mutex_exit(&mpt->m_mutex);
14135 
14136         if (sas_wwn == 0) {
14137                 /*
14138                  * It's a SATA without Device Name
14139                  * So don't try multi-LUNs
14140                  */
14141                 if (mptsas_find_child_phy(pdip, phy)) {
14142                         return (DDI_SUCCESS);
14143                 } else {
14144                         /*
14145                          * need configure and create node
14146                          */
14147                         return (DDI_FAILURE);
14148                 }
14149         }
14150 
14151         /*
14152          * WWN (SAS address or Device Name exist)
14153          */
14154         if (dev_info & (MPI2_SAS_DEVICE_INFO_SATA_DEVICE |
14155             MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE)) {
14156                 /*
14157                  * SATA device with Device Name
14158                  * So don't try multi-LUNs
14159                  */
14160                 if (mptsas_find_child_addr(pdip, sas_wwn, 0)) {
14161                         return (DDI_SUCCESS);
14162                 } else {
14163                         return (DDI_FAILURE);
14164                 }
14165         }
14166 
14167         do {
14168                 ap.a_target = MPTSAS_INVALID_DEVHDL;
14169                 ap.a_lun = 0;
14170                 ap.a_hba_tran = mpt->m_tran;
14171                 repluns_bp = scsi_alloc_consistent_buf(&ap,
14172                     (struct buf *)NULL, buf_len, B_READ, NULL_FUNC, NULL);
14173                 if (repluns_bp == NULL) {
14174                         retry++;
14175                         continue;
14176                 }
14177                 bzero(cdb, CDB_GROUP5);
14178                 cdb[0] = SCMD_REPORT_LUNS;
14179                 cdb[6] = (buf_len & 0xff000000) >> 24;
14180                 cdb[7] = (buf_len & 0x00ff0000) >> 16;
14181                 cdb[8] = (buf_len & 0x0000ff00) >> 8;
14182                 cdb[9] = (buf_len & 0x000000ff);
14183 
14184                 ret = mptsas_send_scsi_cmd(mpt, &ap, ptgt, &cdb[0], CDB_GROUP5,
14185                     repluns_bp, NULL);
14186                 if (ret != DDI_SUCCESS) {
14187                         scsi_free_consistent_buf(repluns_bp);
14188                         retry++;
14189                         continue;
14190                 }
14191                 lun_list_len = BE_32(*(int *)((void *)(
14192                     repluns_bp->b_un.b_addr)));
14193                 if (buf_len >= lun_list_len + 8) {
14194                         ret = DDI_SUCCESS;
14195                         break;
14196                 }
14197                 scsi_free_consistent_buf(repluns_bp);
14198                 buf_len = lun_list_len + 8;
14199 
14200         } while (retry < 3);
14201 
14202         if (ret != DDI_SUCCESS)
14203                 return (ret);
14204         buffer = (char *)repluns_bp->b_un.b_addr;
14205         /*
14206          * find out the number of luns returned by the SCSI ReportLun call
14207          * and allocate buffer space
14208          */
14209         lun_total = lun_list_len / MPTSAS_SCSI_REPORTLUNS_ADDRESS_SIZE;
14210         saved_repluns = kmem_zalloc(sizeof (uint16_t) * lun_total, KM_SLEEP);
14211         if (saved_repluns == NULL) {
14212                 scsi_free_consistent_buf(repluns_bp);
14213                 return (DDI_FAILURE);
14214         }
14215         for (lun_cnt = 0; lun_cnt < lun_total; lun_cnt++) {
14216                 if (mptsas_retrieve_lundata(lun_cnt, (uint8_t *)(buffer),
14217                     &lun_num, &lun_addr_type) != DDI_SUCCESS) {
14218                         continue;
14219                 }
14220                 saved_repluns[lun_cnt] = lun_num;
14221                 if (cdip = mptsas_find_child_addr(pdip, sas_wwn, lun_num))
14222                         ret = DDI_SUCCESS;
14223                 else
14224                         ret = mptsas_probe_lun(pdip, lun_num, &cdip,
14225                             ptgt);
14226                 if ((ret == DDI_SUCCESS) && (cdip != NULL)) {
14227                         (void) ndi_prop_remove(DDI_DEV_T_NONE, cdip,
14228                             MPTSAS_DEV_GONE);
14229                 }
14230         }
14231         mptsas_offline_missed_luns(pdip, saved_repluns, lun_total, ptgt);
14232         kmem_free(saved_repluns, sizeof (uint16_t) * lun_total);
14233         scsi_free_consistent_buf(repluns_bp);
14234         return (DDI_SUCCESS);
14235 }
14236 
14237 static int
14238 mptsas_config_raid(dev_info_t *pdip, uint16_t target, dev_info_t **dip)
14239 {
14240         int                     rval = DDI_FAILURE;
14241         struct scsi_inquiry     *sd_inq = NULL;
14242         mptsas_t                *mpt = DIP2MPT(pdip);
14243         mptsas_target_t         *ptgt = NULL;
14244 
14245         mutex_enter(&mpt->m_mutex);
14246         ptgt = refhash_linear_search(mpt->m_targets,
14247             mptsas_target_eval_devhdl, &target);
14248         mutex_exit(&mpt->m_mutex);
14249         if (ptgt == NULL) {
14250                 mptsas_log(mpt, CE_WARN, "Volume with VolDevHandle of 0x%x "
14251                     "not found.", target);
14252                 return (rval);
14253         }
14254 
14255         sd_inq = (struct scsi_inquiry *)kmem_alloc(SUN_INQSIZE, KM_SLEEP);
14256         rval = mptsas_inquiry(mpt, ptgt, 0, 0, (uchar_t *)sd_inq,
14257             SUN_INQSIZE, 0, (uchar_t)0);
14258 
14259         if ((rval == DDI_SUCCESS) && MPTSAS_VALID_LUN(sd_inq)) {
14260                 rval = mptsas_create_phys_lun(pdip, sd_inq, NULL, dip, ptgt,
14261                     0);
14262         } else {
14263                 rval = DDI_FAILURE;
14264         }
14265 
14266         kmem_free(sd_inq, SUN_INQSIZE);
14267         return (rval);
14268 }
14269 
14270 /*
14271  * configure all RAID volumes for virtual iport
14272  */
14273 static void
14274 mptsas_config_all_viport(dev_info_t *pdip)
14275 {
14276         mptsas_t        *mpt = DIP2MPT(pdip);
14277         int             config, vol;
14278         int             target;
14279         dev_info_t      *lundip = NULL;
14280 
14281         /*
14282          * Get latest RAID info and search for any Volume DevHandles.  If any
14283          * are found, configure the volume.
14284          */
14285         mutex_enter(&mpt->m_mutex);
14286         for (config = 0; config < mpt->m_num_raid_configs; config++) {
14287                 for (vol = 0; vol < MPTSAS_MAX_RAIDVOLS; vol++) {
14288                         if (mpt->m_raidconfig[config].m_raidvol[vol].m_israid
14289                             == 1) {
14290                                 target = mpt->m_raidconfig[config].
14291                                     m_raidvol[vol].m_raidhandle;
14292                                 mutex_exit(&mpt->m_mutex);
14293                                 (void) mptsas_config_raid(pdip, target,
14294                                     &lundip);
14295                                 mutex_enter(&mpt->m_mutex);
14296                         }
14297                 }
14298         }
14299         mutex_exit(&mpt->m_mutex);
14300 }
14301 
14302 static void
14303 mptsas_offline_missed_luns(dev_info_t *pdip, uint16_t *repluns,
14304     int lun_cnt, mptsas_target_t *ptgt)
14305 {
14306         dev_info_t      *child = NULL, *savechild = NULL;
14307         mdi_pathinfo_t  *pip = NULL, *savepip = NULL;
14308         uint64_t        sas_wwn, wwid;
14309         uint8_t         phy;
14310         int             lun;
14311         int             i;
14312         int             find;
14313         char            *addr;
14314         char            *nodename;
14315         mptsas_t        *mpt = DIP2MPT(pdip);
14316 
14317         mutex_enter(&mpt->m_mutex);
14318         wwid = ptgt->m_addr.mta_wwn;
14319         mutex_exit(&mpt->m_mutex);
14320 
14321         child = ddi_get_child(pdip);
14322         while (child) {
14323                 find = 0;
14324                 savechild = child;
14325                 child = ddi_get_next_sibling(child);
14326 
14327                 nodename = ddi_node_name(savechild);
14328                 if (strcmp(nodename, "smp") == 0) {
14329                         continue;
14330                 }
14331 
14332                 addr = ddi_get_name_addr(savechild);
14333                 if (addr == NULL) {
14334                         continue;
14335                 }
14336 
14337                 if (mptsas_parse_address(addr, &sas_wwn, &phy, &lun) !=
14338                     DDI_SUCCESS) {
14339                         continue;
14340                 }
14341 
14342                 if (wwid == sas_wwn) {
14343                         for (i = 0; i < lun_cnt; i++) {
14344                                 if (repluns[i] == lun) {
14345                                         find = 1;
14346                                         break;
14347                                 }
14348                         }
14349                 } else {
14350                         continue;
14351                 }
14352                 if (find == 0) {
14353                         /*
14354                          * The lun has not been there already
14355                          */
14356                         (void) mptsas_offline_lun(pdip, savechild, NULL,
14357                             NDI_DEVI_REMOVE);
14358                 }
14359         }
14360 
14361         pip = mdi_get_next_client_path(pdip, NULL);
14362         while (pip) {
14363                 find = 0;
14364                 savepip = pip;
14365                 addr = MDI_PI(pip)->pi_addr;
14366 
14367                 pip = mdi_get_next_client_path(pdip, pip);
14368 
14369                 if (addr == NULL) {
14370                         continue;
14371                 }
14372 
14373                 if (mptsas_parse_address(addr, &sas_wwn, &phy,
14374                     &lun) != DDI_SUCCESS) {
14375                         continue;
14376                 }
14377 
14378                 if (sas_wwn == wwid) {
14379                         for (i = 0; i < lun_cnt; i++) {
14380                                 if (repluns[i] == lun) {
14381                                         find = 1;
14382                                         break;
14383                                 }
14384                         }
14385                 } else {
14386                         continue;
14387                 }
14388 
14389                 if (find == 0) {
14390                         /*
14391                          * The lun has not been there already
14392                          */
14393                         (void) mptsas_offline_lun(pdip, NULL, savepip,
14394                             NDI_DEVI_REMOVE);
14395                 }
14396         }
14397 }
14398 
14399 void
14400 mptsas_update_hashtab(struct mptsas *mpt)
14401 {
14402         uint32_t        page_address;
14403         int             rval = 0;
14404         uint16_t        dev_handle;
14405         mptsas_target_t *ptgt = NULL;
14406         mptsas_smp_t    smp_node;
14407 
14408         /*
14409          * Get latest RAID info.
14410          */
14411         (void) mptsas_get_raid_info(mpt);
14412 
14413         dev_handle = mpt->m_smp_devhdl;
14414         for (; mpt->m_done_traverse_smp == 0; ) {
14415                 page_address = (MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL &
14416                     MPI2_SAS_EXPAND_PGAD_FORM_MASK) | (uint32_t)dev_handle;
14417                 if (mptsas_get_sas_expander_page0(mpt, page_address, &smp_node)
14418                     != DDI_SUCCESS) {
14419                         break;
14420                 }
14421                 mpt->m_smp_devhdl = dev_handle = smp_node.m_devhdl;
14422                 (void) mptsas_smp_alloc(mpt, &smp_node);
14423         }
14424 
14425         /*
14426          * Config target devices
14427          */
14428         dev_handle = mpt->m_dev_handle;
14429 
14430         /*
14431          * Do loop to get sas device page 0 by GetNextHandle till the
14432          * the last handle. If the sas device is a SATA/SSP target,
14433          * we try to config it.
14434          */
14435         for (; mpt->m_done_traverse_dev == 0; ) {
14436                 ptgt = NULL;
14437                 page_address =
14438                     (MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE &
14439                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) |
14440                     (uint32_t)dev_handle;
14441                 rval = mptsas_get_target_device_info(mpt, page_address,
14442                     &dev_handle, &ptgt);
14443                 if ((rval == DEV_INFO_FAIL_PAGE0) ||
14444                     (rval == DEV_INFO_FAIL_ALLOC)) {
14445                         break;
14446                 }
14447 
14448                 mpt->m_dev_handle = dev_handle;
14449         }
14450 
14451 }
14452 
14453 void
14454 mptsas_update_driver_data(struct mptsas *mpt)
14455 {
14456         mptsas_target_t *tp;
14457         mptsas_smp_t *sp;
14458 
14459         ASSERT(MUTEX_HELD(&mpt->m_mutex));
14460 
14461         /*
14462          * TODO after hard reset, update the driver data structures
14463          * 1. update port/phymask mapping table mpt->m_phy_info
14464          * 2. invalid all the entries in hash table
14465          *    m_devhdl = 0xffff and m_deviceinfo = 0
14466          * 3. call sas_device_page/expander_page to update hash table
14467          */
14468         mptsas_update_phymask(mpt);
14469 
14470         /*
14471          * Remove all the devhdls for existing entries but leave their
14472          * addresses alone.  In update_hashtab() below, we'll find all
14473          * targets that are still present and reassociate them with
14474          * their potentially new devhdls.  Leaving the targets around in
14475          * this fashion allows them to be used on the tx waitq even
14476          * while IOC reset is occurring.
14477          */
14478         for (tp = refhash_first(mpt->m_targets); tp != NULL;
14479             tp = refhash_next(mpt->m_targets, tp)) {
14480                 tp->m_devhdl = MPTSAS_INVALID_DEVHDL;
14481                 tp->m_deviceinfo = 0;
14482                 tp->m_dr_flag = MPTSAS_DR_INACTIVE;
14483         }
14484         for (sp = refhash_first(mpt->m_smp_targets); sp != NULL;
14485             sp = refhash_next(mpt->m_smp_targets, sp)) {
14486                 sp->m_devhdl = MPTSAS_INVALID_DEVHDL;
14487                 sp->m_deviceinfo = 0;
14488         }
14489         mpt->m_done_traverse_dev = 0;
14490         mpt->m_done_traverse_smp = 0;
14491         mpt->m_dev_handle = mpt->m_smp_devhdl = MPTSAS_INVALID_DEVHDL;
14492         mptsas_update_hashtab(mpt);
14493 }
14494 
14495 static void
14496 mptsas_config_all(dev_info_t *pdip)
14497 {
14498         dev_info_t      *smpdip = NULL;
14499         mptsas_t        *mpt = DIP2MPT(pdip);
14500         int             phymask = 0;
14501         mptsas_phymask_t phy_mask;
14502         mptsas_target_t *ptgt = NULL;
14503         mptsas_smp_t    *psmp;
14504 
14505         /*
14506          * Get the phymask associated to the iport
14507          */
14508         phymask = ddi_prop_get_int(DDI_DEV_T_ANY, pdip, 0,
14509             "phymask", 0);
14510 
14511         /*
14512          * Enumerate RAID volumes here (phymask == 0).
14513          */
14514         if (phymask == 0) {
14515                 mptsas_config_all_viport(pdip);
14516                 return;
14517         }
14518 
14519         mutex_enter(&mpt->m_mutex);
14520 
14521         if (!mpt->m_done_traverse_dev || !mpt->m_done_traverse_smp) {
14522                 mptsas_update_hashtab(mpt);
14523         }
14524 
14525         for (psmp = refhash_first(mpt->m_smp_targets); psmp != NULL;
14526             psmp = refhash_next(mpt->m_smp_targets, psmp)) {
14527                 phy_mask = psmp->m_addr.mta_phymask;
14528                 if (phy_mask == phymask) {
14529                         smpdip = NULL;
14530                         mutex_exit(&mpt->m_mutex);
14531                         (void) mptsas_online_smp(pdip, psmp, &smpdip);
14532                         mutex_enter(&mpt->m_mutex);
14533                 }
14534         }
14535 
14536         for (ptgt = refhash_first(mpt->m_targets); ptgt != NULL;
14537             ptgt = refhash_next(mpt->m_targets, ptgt)) {
14538                 phy_mask = ptgt->m_addr.mta_phymask;
14539                 if (phy_mask == phymask) {
14540                         mutex_exit(&mpt->m_mutex);
14541                         (void) mptsas_config_target(pdip, ptgt);
14542                         mutex_enter(&mpt->m_mutex);
14543                 }
14544         }
14545         mutex_exit(&mpt->m_mutex);
14546 }
14547 
14548 static int
14549 mptsas_config_target(dev_info_t *pdip, mptsas_target_t *ptgt)
14550 {
14551         int             rval = DDI_FAILURE;
14552         dev_info_t      *tdip;
14553 
14554         rval = mptsas_config_luns(pdip, ptgt);
14555         if (rval != DDI_SUCCESS) {
14556                 /*
14557                  * The return value means the SCMD_REPORT_LUNS
14558                  * did not execute successfully. The target maybe
14559                  * doesn't support such command.
14560                  */
14561                 rval = mptsas_probe_lun(pdip, 0, &tdip, ptgt);
14562         }
14563         return (rval);
14564 }
14565 
14566 /*
14567  * Return fail if not all the childs/paths are freed.
14568  * if there is any path under the HBA, the return value will be always fail
14569  * because we didn't call mdi_pi_free for path
14570  */
14571 static int
14572 mptsas_offline_target(dev_info_t *pdip, char *name)
14573 {
14574         dev_info_t              *child = NULL, *prechild = NULL;
14575         mdi_pathinfo_t          *pip = NULL, *savepip = NULL;
14576         int                     tmp_rval, rval = DDI_SUCCESS;
14577         char                    *addr, *cp;
14578         size_t                  s;
14579         mptsas_t                *mpt = DIP2MPT(pdip);
14580 
14581         child = ddi_get_child(pdip);
14582         while (child) {
14583                 addr = ddi_get_name_addr(child);
14584                 prechild = child;
14585                 child = ddi_get_next_sibling(child);
14586 
14587                 if (addr == NULL) {
14588                         continue;
14589                 }
14590                 if ((cp = strchr(addr, ',')) == NULL) {
14591                         continue;
14592                 }
14593 
14594                 s = (uintptr_t)cp - (uintptr_t)addr;
14595 
14596                 if (strncmp(addr, name, s) != 0) {
14597                         continue;
14598                 }
14599 
14600                 tmp_rval = mptsas_offline_lun(pdip, prechild, NULL,
14601                     NDI_DEVI_REMOVE);
14602                 if (tmp_rval != DDI_SUCCESS) {
14603                         rval = DDI_FAILURE;
14604                         if (ndi_prop_create_boolean(DDI_DEV_T_NONE,
14605                             prechild, MPTSAS_DEV_GONE) !=
14606                             DDI_PROP_SUCCESS) {
14607                                 mptsas_log(mpt, CE_WARN, "mptsas driver "
14608                                     "unable to create property for "
14609                                     "SAS %s (MPTSAS_DEV_GONE)", addr);
14610                         }
14611                 }
14612         }
14613 
14614         pip = mdi_get_next_client_path(pdip, NULL);
14615         while (pip) {
14616                 addr = MDI_PI(pip)->pi_addr;
14617                 savepip = pip;
14618                 pip = mdi_get_next_client_path(pdip, pip);
14619                 if (addr == NULL) {
14620                         continue;
14621                 }
14622 
14623                 if ((cp = strchr(addr, ',')) == NULL) {
14624                         continue;
14625                 }
14626 
14627                 s = (uintptr_t)cp - (uintptr_t)addr;
14628 
14629                 if (strncmp(addr, name, s) != 0) {
14630                         continue;
14631                 }
14632 
14633                 (void) mptsas_offline_lun(pdip, NULL, savepip,
14634                     NDI_DEVI_REMOVE);
14635                 /*
14636                  * driver will not invoke mdi_pi_free, so path will not
14637                  * be freed forever, return DDI_FAILURE.
14638                  */
14639                 rval = DDI_FAILURE;
14640         }
14641         return (rval);
14642 }
14643 
14644 static int
14645 mptsas_offline_lun(dev_info_t *pdip, dev_info_t *rdip,
14646     mdi_pathinfo_t *rpip, uint_t flags)
14647 {
14648         int             rval = DDI_FAILURE;
14649         char            *devname;
14650         dev_info_t      *cdip, *parent;
14651 
14652         if (rpip != NULL) {
14653                 parent = scsi_vhci_dip;
14654                 cdip = mdi_pi_get_client(rpip);
14655         } else if (rdip != NULL) {
14656                 parent = pdip;
14657                 cdip = rdip;
14658         } else {
14659                 return (DDI_FAILURE);
14660         }
14661 
14662         /*
14663          * Make sure node is attached otherwise
14664          * it won't have related cache nodes to
14665          * clean up.  i_ddi_devi_attached is
14666          * similiar to i_ddi_node_state(cdip) >=
14667          * DS_ATTACHED.
14668          */
14669         if (i_ddi_devi_attached(cdip)) {
14670 
14671                 /* Get full devname */
14672                 devname = kmem_alloc(MAXNAMELEN + 1, KM_SLEEP);
14673                 (void) ddi_deviname(cdip, devname);
14674                 /* Clean cache */
14675                 (void) devfs_clean(parent, devname + 1,
14676                     DV_CLEAN_FORCE);
14677                 kmem_free(devname, MAXNAMELEN + 1);
14678         }
14679         if (rpip != NULL) {
14680                 if (MDI_PI_IS_OFFLINE(rpip)) {
14681                         rval = DDI_SUCCESS;
14682                 } else {
14683                         rval = mdi_pi_offline(rpip, 0);
14684                 }
14685         } else {
14686                 rval = ndi_devi_offline(cdip, flags);
14687         }
14688 
14689         return (rval);
14690 }
14691 
14692 static dev_info_t *
14693 mptsas_find_smp_child(dev_info_t *parent, char *str_wwn)
14694 {
14695         dev_info_t      *child = NULL;
14696         char            *smp_wwn = NULL;
14697 
14698         child = ddi_get_child(parent);
14699         while (child) {
14700                 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child,
14701                     DDI_PROP_DONTPASS, SMP_WWN, &smp_wwn)
14702                     != DDI_SUCCESS) {
14703                         child = ddi_get_next_sibling(child);
14704                         continue;
14705                 }
14706 
14707                 if (strcmp(smp_wwn, str_wwn) == 0) {
14708                         ddi_prop_free(smp_wwn);
14709                         break;
14710                 }
14711                 child = ddi_get_next_sibling(child);
14712                 ddi_prop_free(smp_wwn);
14713         }
14714         return (child);
14715 }
14716 
14717 static int
14718 mptsas_offline_smp(dev_info_t *pdip, mptsas_smp_t *smp_node, uint_t flags)
14719 {
14720         int             rval = DDI_FAILURE;
14721         char            *devname;
14722         char            wwn_str[MPTSAS_WWN_STRLEN];
14723         dev_info_t      *cdip;
14724 
14725         (void) sprintf(wwn_str, "%"PRIx64, smp_node->m_addr.mta_wwn);
14726 
14727         cdip = mptsas_find_smp_child(pdip, wwn_str);
14728 
14729         if (cdip == NULL)
14730                 return (DDI_SUCCESS);
14731 
14732         /*
14733          * Make sure node is attached otherwise
14734          * it won't have related cache nodes to
14735          * clean up.  i_ddi_devi_attached is
14736          * similiar to i_ddi_node_state(cdip) >=
14737          * DS_ATTACHED.
14738          */
14739         if (i_ddi_devi_attached(cdip)) {
14740 
14741                 /* Get full devname */
14742                 devname = kmem_alloc(MAXNAMELEN + 1, KM_SLEEP);
14743                 (void) ddi_deviname(cdip, devname);
14744                 /* Clean cache */
14745                 (void) devfs_clean(pdip, devname + 1,
14746                     DV_CLEAN_FORCE);
14747                 kmem_free(devname, MAXNAMELEN + 1);
14748         }
14749 
14750         rval = ndi_devi_offline(cdip, flags);
14751 
14752         return (rval);
14753 }
14754 
14755 static dev_info_t *
14756 mptsas_find_child(dev_info_t *pdip, char *name)
14757 {
14758         dev_info_t      *child = NULL;
14759         char            *rname = NULL;
14760         int             rval = DDI_FAILURE;
14761 
14762         rname = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14763 
14764         child = ddi_get_child(pdip);
14765         while (child) {
14766                 rval = mptsas_name_child(child, rname, SCSI_MAXNAMELEN);
14767                 if (rval != DDI_SUCCESS) {
14768                         child = ddi_get_next_sibling(child);
14769                         bzero(rname, SCSI_MAXNAMELEN);
14770                         continue;
14771                 }
14772 
14773                 if (strcmp(rname, name) == 0) {
14774                         break;
14775                 }
14776                 child = ddi_get_next_sibling(child);
14777                 bzero(rname, SCSI_MAXNAMELEN);
14778         }
14779 
14780         kmem_free(rname, SCSI_MAXNAMELEN);
14781 
14782         return (child);
14783 }
14784 
14785 
14786 static dev_info_t *
14787 mptsas_find_child_addr(dev_info_t *pdip, uint64_t sasaddr, int lun)
14788 {
14789         dev_info_t      *child = NULL;
14790         char            *name = NULL;
14791         char            *addr = NULL;
14792 
14793         name = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14794         addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14795         (void) sprintf(name, "%016"PRIx64, sasaddr);
14796         (void) sprintf(addr, "w%s,%x", name, lun);
14797         child = mptsas_find_child(pdip, addr);
14798         kmem_free(name, SCSI_MAXNAMELEN);
14799         kmem_free(addr, SCSI_MAXNAMELEN);
14800         return (child);
14801 }
14802 
14803 static dev_info_t *
14804 mptsas_find_child_phy(dev_info_t *pdip, uint8_t phy)
14805 {
14806         dev_info_t      *child;
14807         char            *addr;
14808 
14809         addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14810         (void) sprintf(addr, "p%x,0", phy);
14811         child = mptsas_find_child(pdip, addr);
14812         kmem_free(addr, SCSI_MAXNAMELEN);
14813         return (child);
14814 }
14815 
14816 static mdi_pathinfo_t *
14817 mptsas_find_path_phy(dev_info_t *pdip, uint8_t phy)
14818 {
14819         mdi_pathinfo_t  *path;
14820         char            *addr = NULL;
14821 
14822         addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14823         (void) sprintf(addr, "p%x,0", phy);
14824         path = mdi_pi_find(pdip, NULL, addr);
14825         kmem_free(addr, SCSI_MAXNAMELEN);
14826         return (path);
14827 }
14828 
14829 static mdi_pathinfo_t *
14830 mptsas_find_path_addr(dev_info_t *parent, uint64_t sasaddr, int lun)
14831 {
14832         mdi_pathinfo_t  *path;
14833         char            *name = NULL;
14834         char            *addr = NULL;
14835 
14836         name = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14837         addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
14838         (void) sprintf(name, "%016"PRIx64, sasaddr);
14839         (void) sprintf(addr, "w%s,%x", name, lun);
14840         path = mdi_pi_find(parent, NULL, addr);
14841         kmem_free(name, SCSI_MAXNAMELEN);
14842         kmem_free(addr, SCSI_MAXNAMELEN);
14843 
14844         return (path);
14845 }
14846 
14847 static int
14848 mptsas_create_lun(dev_info_t *pdip, struct scsi_inquiry *sd_inq,
14849     dev_info_t **lun_dip, mptsas_target_t *ptgt, int lun)
14850 {
14851         int                     i = 0;
14852         uchar_t                 *inq83 = NULL;
14853         int                     inq83_len1 = 0xFF;
14854         int                     inq83_len = 0;
14855         int                     rval = DDI_FAILURE;
14856         ddi_devid_t             devid;
14857         char                    *guid = NULL;
14858         int                     target = ptgt->m_devhdl;
14859         mdi_pathinfo_t          *pip = NULL;
14860         mptsas_t                *mpt = DIP2MPT(pdip);
14861 
14862         /*
14863          * For DVD/CD ROM and tape devices and optical
14864          * devices, we won't try to enumerate them under
14865          * scsi_vhci, so no need to try page83
14866          */
14867         if (sd_inq && (sd_inq->inq_dtype == DTYPE_RODIRECT ||
14868             sd_inq->inq_dtype == DTYPE_OPTICAL ||
14869             sd_inq->inq_dtype == DTYPE_ESI))
14870                 goto create_lun;
14871 
14872         /*
14873          * The LCA returns good SCSI status, but corrupt page 83 data the first
14874          * time it is queried. The solution is to keep trying to request page83
14875          * and verify the GUID is not (DDI_NOT_WELL_FORMED) in
14876          * mptsas_inq83_retry_timeout seconds. If the timeout expires, driver
14877          * give up to get VPD page at this stage and fail the enumeration.
14878          */
14879 
14880         inq83   = kmem_zalloc(inq83_len1, KM_SLEEP);
14881 
14882         for (i = 0; i < mptsas_inq83_retry_timeout; i++) {
14883                 rval = mptsas_inquiry(mpt, ptgt, lun, 0x83, inq83,
14884                     inq83_len1, &inq83_len, 1);
14885                 if (rval != 0) {
14886                         mptsas_log(mpt, CE_WARN, "!mptsas request inquiry page "
14887                             "0x83 for target:%x, lun:%x failed!", target, lun);
14888                         if (mptsas_physical_bind_failed_page_83 != B_FALSE)
14889                                 goto create_lun;
14890                         goto out;
14891                 }
14892                 /*
14893                  * create DEVID from inquiry data
14894                  */
14895                 if ((rval = ddi_devid_scsi_encode(
14896                     DEVID_SCSI_ENCODE_VERSION_LATEST, NULL, (uchar_t *)sd_inq,
14897                     sizeof (struct scsi_inquiry), NULL, 0, inq83,
14898                     (size_t)inq83_len, &devid)) == DDI_SUCCESS) {
14899                         /*
14900                          * extract GUID from DEVID
14901                          */
14902                         guid = ddi_devid_to_guid(devid);
14903 
14904                         /*
14905                          * Do not enable MPXIO if the strlen(guid) is greater
14906                          * than MPTSAS_MAX_GUID_LEN, this constrain would be
14907                          * handled by framework later.
14908                          */
14909                         if (guid && (strlen(guid) > MPTSAS_MAX_GUID_LEN)) {
14910                                 ddi_devid_free_guid(guid);
14911                                 guid = NULL;
14912                                 if (mpt->m_mpxio_enable == TRUE) {
14913                                         mptsas_log(mpt, CE_NOTE, "!Target:%x, "
14914                                             "lun:%x doesn't have a valid GUID, "
14915                                             "multipathing for this drive is "
14916                                             "not enabled", target, lun);
14917                                 }
14918                         }
14919 
14920                         /*
14921                          * devid no longer needed
14922                          */
14923                         ddi_devid_free(devid);
14924                         break;
14925                 } else if (rval == DDI_NOT_WELL_FORMED) {
14926                         /*
14927                          * return value of ddi_devid_scsi_encode equal to
14928                          * DDI_NOT_WELL_FORMED means DEVID_RETRY, it worth
14929                          * to retry inquiry page 0x83 and get GUID.
14930                          */
14931                         NDBG20(("Not well formed devid, retry..."));
14932                         delay(drv_sectohz(1));
14933                         continue;
14934                 } else {
14935                         mptsas_log(mpt, CE_WARN, "!Encode devid failed for "
14936                             "path target:%x, lun:%x", target, lun);
14937                         rval = DDI_FAILURE;
14938                         goto create_lun;
14939                 }
14940         }
14941 
14942         if (i == mptsas_inq83_retry_timeout) {
14943                 mptsas_log(mpt, CE_WARN, "!Repeated page83 requests timeout "
14944                     "for path target:%x, lun:%x", target, lun);
14945         }
14946 
14947         rval = DDI_FAILURE;
14948 
14949 create_lun:
14950         if ((guid != NULL) && (mpt->m_mpxio_enable == TRUE)) {
14951                 rval = mptsas_create_virt_lun(pdip, sd_inq, guid, lun_dip, &pip,
14952                     ptgt, lun);
14953         }
14954         if (rval != DDI_SUCCESS) {
14955                 rval = mptsas_create_phys_lun(pdip, sd_inq, guid, lun_dip,
14956                     ptgt, lun);
14957 
14958         }
14959 out:
14960         if (guid != NULL) {
14961                 /*
14962                  * guid no longer needed
14963                  */
14964                 ddi_devid_free_guid(guid);
14965         }
14966         if (inq83 != NULL)
14967                 kmem_free(inq83, inq83_len1);
14968         return (rval);
14969 }
14970 
14971 static int
14972 mptsas_create_virt_lun(dev_info_t *pdip, struct scsi_inquiry *inq, char *guid,
14973     dev_info_t **lun_dip, mdi_pathinfo_t **pip, mptsas_target_t *ptgt, int lun)
14974 {
14975         int                     target;
14976         char                    *nodename = NULL;
14977         char                    **compatible = NULL;
14978         int                     ncompatible     = 0;
14979         int                     mdi_rtn = MDI_FAILURE;
14980         int                     rval = DDI_FAILURE;
14981         char                    *old_guid = NULL;
14982         mptsas_t                *mpt = DIP2MPT(pdip);
14983         char                    *lun_addr = NULL;
14984         char                    *wwn_str = NULL;
14985         char                    *attached_wwn_str = NULL;
14986         char                    *component = NULL;
14987         uint8_t                 phy = 0xFF;
14988         uint64_t                sas_wwn;
14989         int64_t                 lun64 = 0;
14990         uint32_t                devinfo;
14991         uint16_t                dev_hdl;
14992         uint16_t                pdev_hdl;
14993         uint64_t                dev_sas_wwn;
14994         uint64_t                pdev_sas_wwn;
14995         uint32_t                pdev_info;
14996         uint8_t                 physport;
14997         uint8_t                 phy_id;
14998         uint32_t                page_address;
14999         uint16_t                bay_num, enclosure, io_flags;
15000         char                    pdev_wwn_str[MPTSAS_WWN_STRLEN];
15001         uint32_t                dev_info;
15002 
15003         mutex_enter(&mpt->m_mutex);
15004         target = ptgt->m_devhdl;
15005         sas_wwn = ptgt->m_addr.mta_wwn;
15006         devinfo = ptgt->m_deviceinfo;
15007         phy = ptgt->m_phynum;
15008         mutex_exit(&mpt->m_mutex);
15009 
15010         if (sas_wwn) {
15011                 *pip = mptsas_find_path_addr(pdip, sas_wwn, lun);
15012         } else {
15013                 *pip = mptsas_find_path_phy(pdip, phy);
15014         }
15015 
15016         if (*pip != NULL) {
15017                 *lun_dip = MDI_PI(*pip)->pi_client->ct_dip;
15018                 ASSERT(*lun_dip != NULL);
15019                 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, *lun_dip,
15020                     (DDI_PROP_DONTPASS | DDI_PROP_NOTPROM),
15021                     MDI_CLIENT_GUID_PROP, &old_guid) == DDI_SUCCESS) {
15022                         if (strncmp(guid, old_guid, strlen(guid)) == 0) {
15023                                 /*
15024                                  * Same path back online again.
15025                                  */
15026                                 (void) ddi_prop_free(old_guid);
15027                                 if ((!MDI_PI_IS_ONLINE(*pip)) &&
15028                                     (!MDI_PI_IS_STANDBY(*pip)) &&
15029                                     (ptgt->m_tgt_unconfigured == 0)) {
15030                                         rval = mdi_pi_online(*pip, 0);
15031                                         mutex_enter(&mpt->m_mutex);
15032                                         ptgt->m_led_status = 0;
15033                                         (void) mptsas_flush_led_status(mpt,
15034                                             ptgt);
15035                                         mutex_exit(&mpt->m_mutex);
15036                                 } else {
15037                                         rval = DDI_SUCCESS;
15038                                 }
15039                                 if (rval != DDI_SUCCESS) {
15040                                         mptsas_log(mpt, CE_WARN, "path:target: "
15041                                             "%x, lun:%x online failed!", target,
15042                                             lun);
15043                                         *pip = NULL;
15044                                         *lun_dip = NULL;
15045                                 }
15046                                 return (rval);
15047                         } else {
15048                                 /*
15049                                  * The GUID of the LUN has changed which maybe
15050                                  * because customer mapped another volume to the
15051                                  * same LUN.
15052                                  */
15053                                 mptsas_log(mpt, CE_WARN, "The GUID of the "
15054                                     "target:%x, lun:%x was changed, maybe "
15055                                     "because someone mapped another volume "
15056                                     "to the same LUN", target, lun);
15057                                 (void) ddi_prop_free(old_guid);
15058                                 if (!MDI_PI_IS_OFFLINE(*pip)) {
15059                                         rval = mdi_pi_offline(*pip, 0);
15060                                         if (rval != MDI_SUCCESS) {
15061                                                 mptsas_log(mpt, CE_WARN, "path:"
15062                                                     "target:%x, lun:%x offline "
15063                                                     "failed!", target, lun);
15064                                                 *pip = NULL;
15065                                                 *lun_dip = NULL;
15066                                                 return (DDI_FAILURE);
15067                                         }
15068                                 }
15069                                 if (mdi_pi_free(*pip, 0) != MDI_SUCCESS) {
15070                                         mptsas_log(mpt, CE_WARN, "path:target:"
15071                                             "%x, lun:%x free failed!", target,
15072                                             lun);
15073                                         *pip = NULL;
15074                                         *lun_dip = NULL;
15075                                         return (DDI_FAILURE);
15076                                 }
15077                         }
15078                 } else {
15079                         mptsas_log(mpt, CE_WARN, "Can't get client-guid "
15080                             "property for path:target:%x, lun:%x", target, lun);
15081                         *pip = NULL;
15082                         *lun_dip = NULL;
15083                         return (DDI_FAILURE);
15084                 }
15085         }
15086         scsi_hba_nodename_compatible_get(inq, NULL,
15087             inq->inq_dtype, NULL, &nodename, &compatible, &ncompatible);
15088 
15089         /*
15090          * if nodename can't be determined then print a message and skip it
15091          */
15092         if (nodename == NULL) {
15093                 mptsas_log(mpt, CE_WARN, "mptsas driver found no compatible "
15094                     "driver for target%d lun %d dtype:0x%02x", target, lun,
15095                     inq->inq_dtype);
15096                 return (DDI_FAILURE);
15097         }
15098 
15099         wwn_str = kmem_zalloc(MPTSAS_WWN_STRLEN, KM_SLEEP);
15100         /* The property is needed by MPAPI */
15101         (void) sprintf(wwn_str, "%016"PRIx64, sas_wwn);
15102 
15103         lun_addr = kmem_zalloc(SCSI_MAXNAMELEN, KM_SLEEP);
15104         if (guid) {
15105                 (void) sprintf(lun_addr, "w%s,%x", wwn_str, lun);
15106                 (void) sprintf(wwn_str, "w%016"PRIx64, sas_wwn);
15107         } else {
15108                 (void) sprintf(lun_addr, "p%x,%x", phy, lun);
15109                 (void) sprintf(wwn_str, "p%x", phy);
15110         }
15111 
15112         mdi_rtn = mdi_pi_alloc_compatible(pdip, nodename,
15113             guid, lun_addr, compatible, ncompatible,
15114             0, pip);
15115         if (mdi_rtn == MDI_SUCCESS) {
15116 
15117                 if (mdi_prop_update_string(*pip, MDI_GUID,
15118                     guid) != DDI_SUCCESS) {
15119                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15120                             "create prop for target %d lun %d (MDI_GUID)",
15121                             target, lun);
15122                         mdi_rtn = MDI_FAILURE;
15123                         goto virt_create_done;
15124                 }
15125 
15126                 if (mdi_prop_update_int(*pip, LUN_PROP,
15127                     lun) != DDI_SUCCESS) {
15128                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15129                             "create prop for target %d lun %d (LUN_PROP)",
15130                             target, lun);
15131                         mdi_rtn = MDI_FAILURE;
15132                         goto virt_create_done;
15133                 }
15134                 lun64 = (int64_t)lun;
15135                 if (mdi_prop_update_int64(*pip, LUN64_PROP,
15136                     lun64) != DDI_SUCCESS) {
15137                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15138                             "create prop for target %d (LUN64_PROP)",
15139                             target);
15140                         mdi_rtn = MDI_FAILURE;
15141                         goto virt_create_done;
15142                 }
15143                 if (mdi_prop_update_string_array(*pip, "compatible",
15144                     compatible, ncompatible) !=
15145                     DDI_PROP_SUCCESS) {
15146                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15147                             "create prop for target %d lun %d (COMPATIBLE)",
15148                             target, lun);
15149                         mdi_rtn = MDI_FAILURE;
15150                         goto virt_create_done;
15151                 }
15152                 if (sas_wwn && (mdi_prop_update_string(*pip,
15153                     SCSI_ADDR_PROP_TARGET_PORT, wwn_str) != DDI_PROP_SUCCESS)) {
15154                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15155                             "create prop for target %d lun %d "
15156                             "(target-port)", target, lun);
15157                         mdi_rtn = MDI_FAILURE;
15158                         goto virt_create_done;
15159                 } else if ((sas_wwn == 0) && (mdi_prop_update_int(*pip,
15160                     "sata-phy", phy) != DDI_PROP_SUCCESS)) {
15161                         /*
15162                          * Direct attached SATA device without DeviceName
15163                          */
15164                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15165                             "create prop for SAS target %d lun %d "
15166                             "(sata-phy)", target, lun);
15167                         mdi_rtn = MDI_FAILURE;
15168                         goto virt_create_done;
15169                 }
15170                 mutex_enter(&mpt->m_mutex);
15171 
15172                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
15173                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) |
15174                     (uint32_t)ptgt->m_devhdl;
15175                 rval = mptsas_get_sas_device_page0(mpt, page_address,
15176                     &dev_hdl, &dev_sas_wwn, &dev_info, &physport,
15177                     &phy_id, &pdev_hdl, &bay_num, &enclosure, &io_flags);
15178                 if (rval != DDI_SUCCESS) {
15179                         mutex_exit(&mpt->m_mutex);
15180                         mptsas_log(mpt, CE_WARN, "mptsas unable to get "
15181                             "parent device for handle %d", page_address);
15182                         mdi_rtn = MDI_FAILURE;
15183                         goto virt_create_done;
15184                 }
15185 
15186                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
15187                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) | (uint32_t)pdev_hdl;
15188                 rval = mptsas_get_sas_device_page0(mpt, page_address,
15189                     &dev_hdl, &pdev_sas_wwn, &pdev_info, &physport,
15190                     &phy_id, &pdev_hdl, &bay_num, &enclosure, &io_flags);
15191                 if (rval != DDI_SUCCESS) {
15192                         mutex_exit(&mpt->m_mutex);
15193                         mptsas_log(mpt, CE_WARN, "mptsas unable to get"
15194                             "device info for handle %d", page_address);
15195                         mdi_rtn = MDI_FAILURE;
15196                         goto virt_create_done;
15197                 }
15198 
15199                 mutex_exit(&mpt->m_mutex);
15200 
15201                 /*
15202                  * If this device direct attached to the controller
15203                  * set the attached-port to the base wwid
15204                  */
15205                 if ((ptgt->m_deviceinfo & DEVINFO_DIRECT_ATTACHED)
15206                     != DEVINFO_DIRECT_ATTACHED) {
15207                         (void) sprintf(pdev_wwn_str, "w%016"PRIx64,
15208                             pdev_sas_wwn);
15209                 } else {
15210                         /*
15211                          * Update the iport's attached-port to guid
15212                          */
15213                         if (sas_wwn == 0) {
15214                                 (void) sprintf(wwn_str, "p%x", phy);
15215                         } else {
15216                                 (void) sprintf(wwn_str, "w%016"PRIx64, sas_wwn);
15217                         }
15218                         if (ddi_prop_update_string(DDI_DEV_T_NONE,
15219                             pdip, SCSI_ADDR_PROP_ATTACHED_PORT, wwn_str) !=
15220                             DDI_PROP_SUCCESS) {
15221                                 mptsas_log(mpt, CE_WARN,
15222                                     "mptsas unable to create "
15223                                     "property for iport target-port"
15224                                     " %s (sas_wwn)",
15225                                     wwn_str);
15226                                 mdi_rtn = MDI_FAILURE;
15227                                 goto virt_create_done;
15228                         }
15229 
15230                         (void) sprintf(pdev_wwn_str, "w%016"PRIx64,
15231                             mpt->un.m_base_wwid);
15232                 }
15233 
15234                 if (mdi_prop_update_string(*pip,
15235                     SCSI_ADDR_PROP_ATTACHED_PORT, pdev_wwn_str) !=
15236                     DDI_PROP_SUCCESS) {
15237                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15238                             "property for iport attached-port %s (sas_wwn)",
15239                             attached_wwn_str);
15240                         mdi_rtn = MDI_FAILURE;
15241                         goto virt_create_done;
15242                 }
15243 
15244 
15245                 if (inq->inq_dtype == 0) {
15246                         component = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
15247                         /*
15248                          * set obp path for pathinfo
15249                          */
15250                         (void) snprintf(component, MAXPATHLEN,
15251                             "disk@%s", lun_addr);
15252 
15253                         if (mdi_pi_pathname_obp_set(*pip, component) !=
15254                             DDI_SUCCESS) {
15255                                 mptsas_log(mpt, CE_WARN, "mpt_sas driver "
15256                                     "unable to set obp-path for object %s",
15257                                     component);
15258                                 mdi_rtn = MDI_FAILURE;
15259                                 goto virt_create_done;
15260                         }
15261                 }
15262 
15263                 *lun_dip = MDI_PI(*pip)->pi_client->ct_dip;
15264                 if (devinfo & (MPI2_SAS_DEVICE_INFO_SATA_DEVICE |
15265                     MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE)) {
15266                         if ((ndi_prop_update_int(DDI_DEV_T_NONE, *lun_dip,
15267                             "pm-capable", 1)) !=
15268                             DDI_PROP_SUCCESS) {
15269                                 mptsas_log(mpt, CE_WARN, "mptsas driver"
15270                                     "failed to create pm-capable "
15271                                     "property, target %d", target);
15272                                 mdi_rtn = MDI_FAILURE;
15273                                 goto virt_create_done;
15274                         }
15275                 }
15276                 /*
15277                  * Create the phy-num property
15278                  */
15279                 if (mdi_prop_update_int(*pip, "phy-num",
15280                     ptgt->m_phynum) != DDI_SUCCESS) {
15281                         mptsas_log(mpt, CE_WARN, "mptsas driver unable to "
15282                             "create phy-num property for target %d lun %d",
15283                             target, lun);
15284                         mdi_rtn = MDI_FAILURE;
15285                         goto virt_create_done;
15286                 }
15287                 NDBG20(("new path:%s onlining,", MDI_PI(*pip)->pi_addr));
15288                 mdi_rtn = mdi_pi_online(*pip, 0);
15289                 if (mdi_rtn == MDI_SUCCESS) {
15290                         mutex_enter(&mpt->m_mutex);
15291                         ptgt->m_led_status = 0;
15292                         (void) mptsas_flush_led_status(mpt, ptgt);
15293                         mutex_exit(&mpt->m_mutex);
15294                 }
15295                 if (mdi_rtn == MDI_NOT_SUPPORTED) {
15296                         mdi_rtn = MDI_FAILURE;
15297                 }
15298 virt_create_done:
15299                 if (*pip && mdi_rtn != MDI_SUCCESS) {
15300                         (void) mdi_pi_free(*pip, 0);
15301                         *pip = NULL;
15302                         *lun_dip = NULL;
15303                 }
15304         }
15305 
15306         scsi_hba_nodename_compatible_free(nodename, compatible);
15307         if (lun_addr != NULL) {
15308                 kmem_free(lun_addr, SCSI_MAXNAMELEN);
15309         }
15310         if (wwn_str != NULL) {
15311                 kmem_free(wwn_str, MPTSAS_WWN_STRLEN);
15312         }
15313         if (component != NULL) {
15314                 kmem_free(component, MAXPATHLEN);
15315         }
15316 
15317         return ((mdi_rtn == MDI_SUCCESS) ? DDI_SUCCESS : DDI_FAILURE);
15318 }
15319 
15320 static int
15321 mptsas_create_phys_lun(dev_info_t *pdip, struct scsi_inquiry *inq,
15322     char *guid, dev_info_t **lun_dip, mptsas_target_t *ptgt, int lun)
15323 {
15324         int                     target;
15325         int                     rval;
15326         int                     ndi_rtn = NDI_FAILURE;
15327         uint64_t                be_sas_wwn;
15328         char                    *nodename = NULL;
15329         char                    **compatible = NULL;
15330         int                     ncompatible = 0;
15331         int                     instance = 0;
15332         mptsas_t                *mpt = DIP2MPT(pdip);
15333         char                    *wwn_str = NULL;
15334         char                    *component = NULL;
15335         char                    *attached_wwn_str = NULL;
15336         uint8_t                 phy = 0xFF;
15337         uint64_t                sas_wwn;
15338         uint32_t                devinfo;
15339         uint16_t                dev_hdl;
15340         uint16_t                pdev_hdl;
15341         uint64_t                pdev_sas_wwn;
15342         uint64_t                dev_sas_wwn;
15343         uint32_t                pdev_info;
15344         uint8_t                 physport;
15345         uint8_t                 phy_id;
15346         uint32_t                page_address;
15347         uint16_t                bay_num, enclosure, io_flags;
15348         char                    pdev_wwn_str[MPTSAS_WWN_STRLEN];
15349         uint32_t                dev_info;
15350         int64_t                 lun64 = 0;
15351 
15352         mutex_enter(&mpt->m_mutex);
15353         target = ptgt->m_devhdl;
15354         sas_wwn = ptgt->m_addr.mta_wwn;
15355         devinfo = ptgt->m_deviceinfo;
15356         phy = ptgt->m_phynum;
15357         mutex_exit(&mpt->m_mutex);
15358 
15359         /*
15360          * generate compatible property with binding-set "mpt"
15361          */
15362         scsi_hba_nodename_compatible_get(inq, NULL, inq->inq_dtype, NULL,
15363             &nodename, &compatible, &ncompatible);
15364 
15365         /*
15366          * if nodename can't be determined then print a message and skip it
15367          */
15368         if (nodename == NULL) {
15369                 mptsas_log(mpt, CE_WARN, "mptsas found no compatible driver "
15370                     "for target %d lun %d", target, lun);
15371                 return (DDI_FAILURE);
15372         }
15373 
15374         ndi_rtn = ndi_devi_alloc(pdip, nodename,
15375             DEVI_SID_NODEID, lun_dip);
15376 
15377         /*
15378          * if lun alloc success, set props
15379          */
15380         if (ndi_rtn == NDI_SUCCESS) {
15381 
15382                 if (ndi_prop_update_int(DDI_DEV_T_NONE,
15383                     *lun_dip, LUN_PROP, lun) !=
15384                     DDI_PROP_SUCCESS) {
15385                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15386                             "property for target %d lun %d (LUN_PROP)",
15387                             target, lun);
15388                         ndi_rtn = NDI_FAILURE;
15389                         goto phys_create_done;
15390                 }
15391 
15392                 lun64 = (int64_t)lun;
15393                 if (ndi_prop_update_int64(DDI_DEV_T_NONE,
15394                     *lun_dip, LUN64_PROP, lun64) !=
15395                     DDI_PROP_SUCCESS) {
15396                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15397                             "property for target %d lun64 %d (LUN64_PROP)",
15398                             target, lun);
15399                         ndi_rtn = NDI_FAILURE;
15400                         goto phys_create_done;
15401                 }
15402                 if (ndi_prop_update_string_array(DDI_DEV_T_NONE,
15403                     *lun_dip, "compatible", compatible, ncompatible)
15404                     != DDI_PROP_SUCCESS) {
15405                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15406                             "property for target %d lun %d (COMPATIBLE)",
15407                             target, lun);
15408                         ndi_rtn = NDI_FAILURE;
15409                         goto phys_create_done;
15410                 }
15411 
15412                 /*
15413                  * We need the SAS WWN for non-multipath devices, so
15414                  * we'll use the same property as that multipathing
15415                  * devices need to present for MPAPI. If we don't have
15416                  * a WWN (e.g. parallel SCSI), don't create the prop.
15417                  */
15418                 wwn_str = kmem_zalloc(MPTSAS_WWN_STRLEN, KM_SLEEP);
15419                 (void) sprintf(wwn_str, "w%016"PRIx64, sas_wwn);
15420                 if (sas_wwn && ndi_prop_update_string(DDI_DEV_T_NONE,
15421                     *lun_dip, SCSI_ADDR_PROP_TARGET_PORT, wwn_str)
15422                     != DDI_PROP_SUCCESS) {
15423                         mptsas_log(mpt, CE_WARN, "mptsas unable to "
15424                             "create property for SAS target %d lun %d "
15425                             "(target-port)", target, lun);
15426                         ndi_rtn = NDI_FAILURE;
15427                         goto phys_create_done;
15428                 }
15429 
15430                 be_sas_wwn = BE_64(sas_wwn);
15431                 if (sas_wwn && ndi_prop_update_byte_array(
15432                     DDI_DEV_T_NONE, *lun_dip, "port-wwn",
15433                     (uchar_t *)&be_sas_wwn, 8) != DDI_PROP_SUCCESS) {
15434                         mptsas_log(mpt, CE_WARN, "mptsas unable to "
15435                             "create property for SAS target %d lun %d "
15436                             "(port-wwn)", target, lun);
15437                         ndi_rtn = NDI_FAILURE;
15438                         goto phys_create_done;
15439                 } else if ((sas_wwn == 0) && (ndi_prop_update_int(
15440                     DDI_DEV_T_NONE, *lun_dip, "sata-phy", phy) !=
15441                     DDI_PROP_SUCCESS)) {
15442                         /*
15443                          * Direct attached SATA device without DeviceName
15444                          */
15445                         mptsas_log(mpt, CE_WARN, "mptsas unable to "
15446                             "create property for SAS target %d lun %d "
15447                             "(sata-phy)", target, lun);
15448                         ndi_rtn = NDI_FAILURE;
15449                         goto phys_create_done;
15450                 }
15451 
15452                 if (ndi_prop_create_boolean(DDI_DEV_T_NONE,
15453                     *lun_dip, SAS_PROP) != DDI_PROP_SUCCESS) {
15454                         mptsas_log(mpt, CE_WARN, "mptsas unable to"
15455                             "create property for SAS target %d lun %d"
15456                             " (SAS_PROP)", target, lun);
15457                         ndi_rtn = NDI_FAILURE;
15458                         goto phys_create_done;
15459                 }
15460                 if (guid && (ndi_prop_update_string(DDI_DEV_T_NONE,
15461                     *lun_dip, NDI_GUID, guid) != DDI_SUCCESS)) {
15462                         mptsas_log(mpt, CE_WARN, "mptsas unable "
15463                             "to create guid property for target %d "
15464                             "lun %d", target, lun);
15465                         ndi_rtn = NDI_FAILURE;
15466                         goto phys_create_done;
15467                 }
15468 
15469                 /*
15470                  * The following code is to set properties for SM-HBA support,
15471                  * it doesn't apply to RAID volumes
15472                  */
15473                 if (ptgt->m_addr.mta_phymask == 0)
15474                         goto phys_raid_lun;
15475 
15476                 mutex_enter(&mpt->m_mutex);
15477 
15478                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
15479                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) |
15480                     (uint32_t)ptgt->m_devhdl;
15481                 rval = mptsas_get_sas_device_page0(mpt, page_address,
15482                     &dev_hdl, &dev_sas_wwn, &dev_info,
15483                     &physport, &phy_id, &pdev_hdl,
15484                     &bay_num, &enclosure, &io_flags);
15485                 if (rval != DDI_SUCCESS) {
15486                         mutex_exit(&mpt->m_mutex);
15487                         mptsas_log(mpt, CE_WARN, "mptsas unable to get"
15488                             "parent device for handle %d.", page_address);
15489                         ndi_rtn = NDI_FAILURE;
15490                         goto phys_create_done;
15491                 }
15492 
15493                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
15494                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) | (uint32_t)pdev_hdl;
15495                 rval = mptsas_get_sas_device_page0(mpt, page_address,
15496                     &dev_hdl, &pdev_sas_wwn, &pdev_info, &physport,
15497                     &phy_id, &pdev_hdl, &bay_num, &enclosure, &io_flags);
15498                 if (rval != DDI_SUCCESS) {
15499                         mutex_exit(&mpt->m_mutex);
15500                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15501                             "device for handle %d.", page_address);
15502                         ndi_rtn = NDI_FAILURE;
15503                         goto phys_create_done;
15504                 }
15505 
15506                 mutex_exit(&mpt->m_mutex);
15507 
15508                 /*
15509                  * If this device direct attached to the controller
15510                  * set the attached-port to the base wwid
15511                  */
15512                 if ((ptgt->m_deviceinfo & DEVINFO_DIRECT_ATTACHED)
15513                     != DEVINFO_DIRECT_ATTACHED) {
15514                         (void) sprintf(pdev_wwn_str, "w%016"PRIx64,
15515                             pdev_sas_wwn);
15516                 } else {
15517                         /*
15518                          * Update the iport's attached-port to guid
15519                          */
15520                         if (sas_wwn == 0) {
15521                                 (void) sprintf(wwn_str, "p%x", phy);
15522                         } else {
15523                                 (void) sprintf(wwn_str, "w%016"PRIx64, sas_wwn);
15524                         }
15525                         if (ddi_prop_update_string(DDI_DEV_T_NONE,
15526                             pdip, SCSI_ADDR_PROP_ATTACHED_PORT, wwn_str) !=
15527                             DDI_PROP_SUCCESS) {
15528                                 mptsas_log(mpt, CE_WARN,
15529                                     "mptsas unable to create "
15530                                     "property for iport target-port"
15531                                     " %s (sas_wwn)",
15532                                     wwn_str);
15533                                 ndi_rtn = NDI_FAILURE;
15534                                 goto phys_create_done;
15535                         }
15536 
15537                         (void) sprintf(pdev_wwn_str, "w%016"PRIx64,
15538                             mpt->un.m_base_wwid);
15539                 }
15540 
15541                 if (ndi_prop_update_string(DDI_DEV_T_NONE,
15542                     *lun_dip, SCSI_ADDR_PROP_ATTACHED_PORT, pdev_wwn_str) !=
15543                     DDI_PROP_SUCCESS) {
15544                         mptsas_log(mpt, CE_WARN,
15545                             "mptsas unable to create "
15546                             "property for iport attached-port %s (sas_wwn)",
15547                             attached_wwn_str);
15548                         ndi_rtn = NDI_FAILURE;
15549                         goto phys_create_done;
15550                 }
15551 
15552                 if (IS_SATA_DEVICE(dev_info)) {
15553                         if (ndi_prop_update_string(DDI_DEV_T_NONE,
15554                             *lun_dip, MPTSAS_VARIANT, "sata") !=
15555                             DDI_PROP_SUCCESS) {
15556                                 mptsas_log(mpt, CE_WARN,
15557                                     "mptsas unable to create "
15558                                     "property for device variant ");
15559                                 ndi_rtn = NDI_FAILURE;
15560                                 goto phys_create_done;
15561                         }
15562                 }
15563 
15564                 if (IS_ATAPI_DEVICE(dev_info)) {
15565                         if (ndi_prop_update_string(DDI_DEV_T_NONE,
15566                             *lun_dip, MPTSAS_VARIANT, "atapi") !=
15567                             DDI_PROP_SUCCESS) {
15568                                 mptsas_log(mpt, CE_WARN,
15569                                     "mptsas unable to create "
15570                                     "property for device variant ");
15571                                 ndi_rtn = NDI_FAILURE;
15572                                 goto phys_create_done;
15573                         }
15574                 }
15575 
15576 phys_raid_lun:
15577                 /*
15578                  * if this is a SAS controller, and the target is a SATA
15579                  * drive, set the 'pm-capable' property for sd and if on
15580                  * an OPL platform, also check if this is an ATAPI
15581                  * device.
15582                  */
15583                 instance = ddi_get_instance(mpt->m_dip);
15584                 if (devinfo & (MPI2_SAS_DEVICE_INFO_SATA_DEVICE |
15585                     MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE)) {
15586                         NDBG2(("mptsas%d: creating pm-capable property, "
15587                             "target %d", instance, target));
15588 
15589                         if ((ndi_prop_update_int(DDI_DEV_T_NONE,
15590                             *lun_dip, "pm-capable", 1)) !=
15591                             DDI_PROP_SUCCESS) {
15592                                 mptsas_log(mpt, CE_WARN, "mptsas "
15593                                     "failed to create pm-capable "
15594                                     "property, target %d", target);
15595                                 ndi_rtn = NDI_FAILURE;
15596                                 goto phys_create_done;
15597                         }
15598 
15599                 }
15600 
15601                 if ((inq->inq_dtype == 0) || (inq->inq_dtype == 5)) {
15602                         /*
15603                          * add 'obp-path' properties for devinfo
15604                          */
15605                         bzero(wwn_str, sizeof (wwn_str));
15606                         (void) sprintf(wwn_str, "%016"PRIx64, sas_wwn);
15607                         component = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
15608                         if (guid) {
15609                                 (void) snprintf(component, MAXPATHLEN,
15610                                     "disk@w%s,%x", wwn_str, lun);
15611                         } else {
15612                                 (void) snprintf(component, MAXPATHLEN,
15613                                     "disk@p%x,%x", phy, lun);
15614                         }
15615                         if (ddi_pathname_obp_set(*lun_dip, component)
15616                             != DDI_SUCCESS) {
15617                                 mptsas_log(mpt, CE_WARN, "mpt_sas driver "
15618                                     "unable to set obp-path for SAS "
15619                                     "object %s", component);
15620                                 ndi_rtn = NDI_FAILURE;
15621                                 goto phys_create_done;
15622                         }
15623                 }
15624                 /*
15625                  * Create the phy-num property for non-raid disk
15626                  */
15627                 if (ptgt->m_addr.mta_phymask != 0) {
15628                         if (ndi_prop_update_int(DDI_DEV_T_NONE,
15629                             *lun_dip, "phy-num", ptgt->m_phynum) !=
15630                             DDI_PROP_SUCCESS) {
15631                                 mptsas_log(mpt, CE_WARN, "mptsas driver "
15632                                     "failed to create phy-num property for "
15633                                     "target %d", target);
15634                                 ndi_rtn = NDI_FAILURE;
15635                                 goto phys_create_done;
15636                         }
15637                 }
15638 phys_create_done:
15639                 /*
15640                  * If props were setup ok, online the lun
15641                  */
15642                 if (ndi_rtn == NDI_SUCCESS) {
15643                         /*
15644                          * Try to online the new node
15645                          */
15646                         ndi_rtn = ndi_devi_online(*lun_dip, NDI_ONLINE_ATTACH);
15647                 }
15648                 if (ndi_rtn == NDI_SUCCESS) {
15649                         mutex_enter(&mpt->m_mutex);
15650                         ptgt->m_led_status = 0;
15651                         (void) mptsas_flush_led_status(mpt, ptgt);
15652                         mutex_exit(&mpt->m_mutex);
15653                 }
15654 
15655                 /*
15656                  * If success set rtn flag, else unwire alloc'd lun
15657                  */
15658                 if (ndi_rtn != NDI_SUCCESS) {
15659                         NDBG12(("mptsas driver unable to online "
15660                             "target %d lun %d", target, lun));
15661                         ndi_prop_remove_all(*lun_dip);
15662                         (void) ndi_devi_free(*lun_dip);
15663                         *lun_dip = NULL;
15664                 }
15665         }
15666 
15667         scsi_hba_nodename_compatible_free(nodename, compatible);
15668 
15669         if (wwn_str != NULL) {
15670                 kmem_free(wwn_str, MPTSAS_WWN_STRLEN);
15671         }
15672         if (component != NULL) {
15673                 kmem_free(component, MAXPATHLEN);
15674         }
15675 
15676 
15677         return ((ndi_rtn == NDI_SUCCESS) ? DDI_SUCCESS : DDI_FAILURE);
15678 }
15679 
15680 static int
15681 mptsas_probe_smp(dev_info_t *pdip, uint64_t wwn)
15682 {
15683         mptsas_t        *mpt = DIP2MPT(pdip);
15684         struct smp_device smp_sd;
15685 
15686         /* XXX An HBA driver should not be allocating an smp_device. */
15687         bzero(&smp_sd, sizeof (struct smp_device));
15688         smp_sd.smp_sd_address.smp_a_hba_tran = mpt->m_smptran;
15689         bcopy(&wwn, smp_sd.smp_sd_address.smp_a_wwn, SAS_WWN_BYTE_SIZE);
15690 
15691         if (smp_probe(&smp_sd) != DDI_PROBE_SUCCESS)
15692                 return (NDI_FAILURE);
15693         return (NDI_SUCCESS);
15694 }
15695 
15696 static int
15697 mptsas_config_smp(dev_info_t *pdip, uint64_t sas_wwn, dev_info_t **smp_dip)
15698 {
15699         mptsas_t        *mpt = DIP2MPT(pdip);
15700         mptsas_smp_t    *psmp = NULL;
15701         int             rval;
15702         int             phymask;
15703 
15704         /*
15705          * Get the physical port associated to the iport
15706          * PHYMASK TODO
15707          */
15708         phymask = ddi_prop_get_int(DDI_DEV_T_ANY, pdip, 0,
15709             "phymask", 0);
15710         /*
15711          * Find the smp node in hash table with specified sas address and
15712          * physical port
15713          */
15714         psmp = mptsas_wwid_to_psmp(mpt, phymask, sas_wwn);
15715         if (psmp == NULL) {
15716                 return (DDI_FAILURE);
15717         }
15718 
15719         rval = mptsas_online_smp(pdip, psmp, smp_dip);
15720 
15721         return (rval);
15722 }
15723 
15724 static int
15725 mptsas_online_smp(dev_info_t *pdip, mptsas_smp_t *smp_node,
15726     dev_info_t **smp_dip)
15727 {
15728         char            wwn_str[MPTSAS_WWN_STRLEN];
15729         char            attached_wwn_str[MPTSAS_WWN_STRLEN];
15730         int             ndi_rtn = NDI_FAILURE;
15731         int             rval = 0;
15732         mptsas_smp_t    dev_info;
15733         uint32_t        page_address;
15734         mptsas_t        *mpt = DIP2MPT(pdip);
15735         uint16_t        dev_hdl;
15736         uint64_t        sas_wwn;
15737         uint64_t        smp_sas_wwn;
15738         uint8_t         physport;
15739         uint8_t         phy_id;
15740         uint16_t        pdev_hdl;
15741         uint8_t         numphys = 0;
15742         uint16_t        i = 0;
15743         char            phymask[MPTSAS_MAX_PHYS];
15744         char            *iport = NULL;
15745         mptsas_phymask_t        phy_mask = 0;
15746         uint16_t        attached_devhdl;
15747         uint16_t        bay_num, enclosure, io_flags;
15748 
15749         (void) sprintf(wwn_str, "%"PRIx64, smp_node->m_addr.mta_wwn);
15750 
15751         /*
15752          * Probe smp device, prevent the node of removed device from being
15753          * configured succesfully
15754          */
15755         if (mptsas_probe_smp(pdip, smp_node->m_addr.mta_wwn) != NDI_SUCCESS) {
15756                 return (DDI_FAILURE);
15757         }
15758 
15759         if ((*smp_dip = mptsas_find_smp_child(pdip, wwn_str)) != NULL) {
15760                 return (DDI_SUCCESS);
15761         }
15762 
15763         ndi_rtn = ndi_devi_alloc(pdip, "smp", DEVI_SID_NODEID, smp_dip);
15764 
15765         /*
15766          * if lun alloc success, set props
15767          */
15768         if (ndi_rtn == NDI_SUCCESS) {
15769                 /*
15770                  * Set the flavor of the child to be SMP flavored
15771                  */
15772                 ndi_flavor_set(*smp_dip, SCSA_FLAVOR_SMP);
15773 
15774                 if (ndi_prop_update_string(DDI_DEV_T_NONE,
15775                     *smp_dip, SMP_WWN, wwn_str) !=
15776                     DDI_PROP_SUCCESS) {
15777                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15778                             "property for smp device %s (sas_wwn)",
15779                             wwn_str);
15780                         ndi_rtn = NDI_FAILURE;
15781                         goto smp_create_done;
15782                 }
15783                 (void) sprintf(wwn_str, "w%"PRIx64, smp_node->m_addr.mta_wwn);
15784                 if (ndi_prop_update_string(DDI_DEV_T_NONE,
15785                     *smp_dip, SCSI_ADDR_PROP_TARGET_PORT, wwn_str) !=
15786                     DDI_PROP_SUCCESS) {
15787                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15788                             "property for iport target-port %s (sas_wwn)",
15789                             wwn_str);
15790                         ndi_rtn = NDI_FAILURE;
15791                         goto smp_create_done;
15792                 }
15793 
15794                 mutex_enter(&mpt->m_mutex);
15795 
15796                 page_address = (MPI2_SAS_EXPAND_PGAD_FORM_HNDL &
15797                     MPI2_SAS_EXPAND_PGAD_FORM_MASK) | smp_node->m_devhdl;
15798                 rval = mptsas_get_sas_expander_page0(mpt, page_address,
15799                     &dev_info);
15800                 if (rval != DDI_SUCCESS) {
15801                         mutex_exit(&mpt->m_mutex);
15802                         mptsas_log(mpt, CE_WARN,
15803                             "mptsas unable to get expander "
15804                             "parent device info for %x", page_address);
15805                         ndi_rtn = NDI_FAILURE;
15806                         goto smp_create_done;
15807                 }
15808 
15809                 smp_node->m_pdevhdl = dev_info.m_pdevhdl;
15810                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
15811                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) |
15812                     (uint32_t)dev_info.m_pdevhdl;
15813                 rval = mptsas_get_sas_device_page0(mpt, page_address,
15814                     &dev_hdl, &sas_wwn, &smp_node->m_pdevinfo, &physport,
15815                     &phy_id, &pdev_hdl, &bay_num, &enclosure, &io_flags);
15816                 if (rval != DDI_SUCCESS) {
15817                         mutex_exit(&mpt->m_mutex);
15818                         mptsas_log(mpt, CE_WARN, "mptsas unable to get "
15819                             "device info for %x", page_address);
15820                         ndi_rtn = NDI_FAILURE;
15821                         goto smp_create_done;
15822                 }
15823 
15824                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_HANDLE &
15825                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) |
15826                     (uint32_t)dev_info.m_devhdl;
15827                 rval = mptsas_get_sas_device_page0(mpt, page_address,
15828                     &dev_hdl, &smp_sas_wwn, &smp_node->m_deviceinfo,
15829                     &physport, &phy_id, &pdev_hdl, &bay_num, &enclosure,
15830                     &io_flags);
15831                 if (rval != DDI_SUCCESS) {
15832                         mutex_exit(&mpt->m_mutex);
15833                         mptsas_log(mpt, CE_WARN, "mptsas unable to get "
15834                             "device info for %x", page_address);
15835                         ndi_rtn = NDI_FAILURE;
15836                         goto smp_create_done;
15837                 }
15838                 mutex_exit(&mpt->m_mutex);
15839 
15840                 /*
15841                  * If this smp direct attached to the controller
15842                  * set the attached-port to the base wwid
15843                  */
15844                 if ((smp_node->m_deviceinfo & DEVINFO_DIRECT_ATTACHED)
15845                     != DEVINFO_DIRECT_ATTACHED) {
15846                         (void) sprintf(attached_wwn_str, "w%016"PRIx64,
15847                             sas_wwn);
15848                 } else {
15849                         (void) sprintf(attached_wwn_str, "w%016"PRIx64,
15850                             mpt->un.m_base_wwid);
15851                 }
15852 
15853                 if (ndi_prop_update_string(DDI_DEV_T_NONE,
15854                     *smp_dip, SCSI_ADDR_PROP_ATTACHED_PORT, attached_wwn_str) !=
15855                     DDI_PROP_SUCCESS) {
15856                         mptsas_log(mpt, CE_WARN, "mptsas unable to create "
15857                             "property for smp attached-port %s (sas_wwn)",
15858                             attached_wwn_str);
15859                         ndi_rtn = NDI_FAILURE;
15860                         goto smp_create_done;
15861                 }
15862 
15863                 if (ndi_prop_create_boolean(DDI_DEV_T_NONE,
15864                     *smp_dip, SMP_PROP) != DDI_PROP_SUCCESS) {
15865                         mptsas_log(mpt, CE_WARN, "mptsas unable to "
15866                             "create property for SMP %s (SMP_PROP) ",
15867                             wwn_str);
15868                         ndi_rtn = NDI_FAILURE;
15869                         goto smp_create_done;
15870                 }
15871 
15872                 /*
15873                  * check the smp to see whether it direct
15874                  * attached to the controller
15875                  */
15876                 if ((smp_node->m_deviceinfo & DEVINFO_DIRECT_ATTACHED)
15877                     != DEVINFO_DIRECT_ATTACHED) {
15878                         goto smp_create_done;
15879                 }
15880                 numphys = ddi_prop_get_int(DDI_DEV_T_ANY, pdip,
15881                     DDI_PROP_DONTPASS, MPTSAS_NUM_PHYS, -1);
15882                 if (numphys > 0) {
15883                         goto smp_create_done;
15884                 }
15885                 /*
15886                  * this iport is an old iport, we need to
15887                  * reconfig the props for it.
15888                  */
15889                 if (ddi_prop_update_int(DDI_DEV_T_NONE, pdip,
15890                     MPTSAS_VIRTUAL_PORT, 0) !=
15891                     DDI_PROP_SUCCESS) {
15892                         (void) ddi_prop_remove(DDI_DEV_T_NONE, pdip,
15893                             MPTSAS_VIRTUAL_PORT);
15894                         mptsas_log(mpt, CE_WARN, "mptsas virtual port "
15895                             "prop update failed");
15896                         goto smp_create_done;
15897                 }
15898 
15899                 mutex_enter(&mpt->m_mutex);
15900                 numphys = 0;
15901                 iport = ddi_get_name_addr(pdip);
15902                 for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
15903                         bzero(phymask, sizeof (phymask));
15904                         (void) sprintf(phymask,
15905                             "%x", mpt->m_phy_info[i].phy_mask);
15906                         if (strcmp(phymask, iport) == 0) {
15907                                 phy_mask = mpt->m_phy_info[i].phy_mask;
15908                                 break;
15909                         }
15910                 }
15911 
15912                 for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
15913                         if ((phy_mask >> i) & 0x01) {
15914                                 numphys++;
15915                         }
15916                 }
15917                 /*
15918                  * Update PHY info for smhba
15919                  */
15920                 if (mptsas_smhba_phy_init(mpt)) {
15921                         mutex_exit(&mpt->m_mutex);
15922                         mptsas_log(mpt, CE_WARN, "mptsas phy update "
15923                             "failed");
15924                         goto smp_create_done;
15925                 }
15926                 mutex_exit(&mpt->m_mutex);
15927 
15928                 mptsas_smhba_set_all_phy_props(mpt, pdip, numphys, phy_mask,
15929                     &attached_devhdl);
15930 
15931                 if (ddi_prop_update_int(DDI_DEV_T_NONE, pdip,
15932                     MPTSAS_NUM_PHYS, numphys) !=
15933                     DDI_PROP_SUCCESS) {
15934                         (void) ddi_prop_remove(DDI_DEV_T_NONE, pdip,
15935                             MPTSAS_NUM_PHYS);
15936                         mptsas_log(mpt, CE_WARN, "mptsas update "
15937                             "num phys props failed");
15938                         goto smp_create_done;
15939                 }
15940                 /*
15941                  * Add parent's props for SMHBA support
15942                  */
15943                 if (ddi_prop_update_string(DDI_DEV_T_NONE, pdip,
15944                     SCSI_ADDR_PROP_ATTACHED_PORT, wwn_str) !=
15945                     DDI_PROP_SUCCESS) {
15946                         (void) ddi_prop_remove(DDI_DEV_T_NONE, pdip,
15947                             SCSI_ADDR_PROP_ATTACHED_PORT);
15948                         mptsas_log(mpt, CE_WARN, "mptsas update iport"
15949                             "attached-port failed");
15950                         goto smp_create_done;
15951                 }
15952 
15953 smp_create_done:
15954                 /*
15955                  * If props were setup ok, online the lun
15956                  */
15957                 if (ndi_rtn == NDI_SUCCESS) {
15958                         /*
15959                          * Try to online the new node
15960                          */
15961                         ndi_rtn = ndi_devi_online(*smp_dip, NDI_ONLINE_ATTACH);
15962                 }
15963 
15964                 /*
15965                  * If success set rtn flag, else unwire alloc'd lun
15966                  */
15967                 if (ndi_rtn != NDI_SUCCESS) {
15968                         NDBG12(("mptsas unable to online "
15969                             "SMP target %s", wwn_str));
15970                         ndi_prop_remove_all(*smp_dip);
15971                         (void) ndi_devi_free(*smp_dip);
15972                 }
15973         }
15974 
15975         return ((ndi_rtn == NDI_SUCCESS) ? DDI_SUCCESS : DDI_FAILURE);
15976 }
15977 
15978 /* smp transport routine */
15979 static int mptsas_smp_start(struct smp_pkt *smp_pkt)
15980 {
15981         uint64_t                        wwn;
15982         Mpi2SmpPassthroughRequest_t     req;
15983         Mpi2SmpPassthroughReply_t       rep;
15984         uint32_t                        direction = 0;
15985         mptsas_t                        *mpt;
15986         int                             ret;
15987         uint64_t                        tmp64;
15988 
15989         mpt = (mptsas_t *)smp_pkt->smp_pkt_address->
15990             smp_a_hba_tran->smp_tran_hba_private;
15991 
15992         bcopy(smp_pkt->smp_pkt_address->smp_a_wwn, &wwn, SAS_WWN_BYTE_SIZE);
15993         /*
15994          * Need to compose a SMP request message
15995          * and call mptsas_do_passthru() function
15996          */
15997         bzero(&req, sizeof (req));
15998         bzero(&rep, sizeof (rep));
15999         req.PassthroughFlags = 0;
16000         req.PhysicalPort = 0xff;
16001         req.ChainOffset = 0;
16002         req.Function = MPI2_FUNCTION_SMP_PASSTHROUGH;
16003 
16004         if ((smp_pkt->smp_pkt_reqsize & 0xffff0000ul) != 0) {
16005                 smp_pkt->smp_pkt_reason = ERANGE;
16006                 return (DDI_FAILURE);
16007         }
16008         req.RequestDataLength = LE_16((uint16_t)(smp_pkt->smp_pkt_reqsize - 4));
16009 
16010         req.MsgFlags = 0;
16011         tmp64 = LE_64(wwn);
16012         bcopy(&tmp64, &req.SASAddress, SAS_WWN_BYTE_SIZE);
16013         if (smp_pkt->smp_pkt_rspsize > 0) {
16014                 direction |= MPTSAS_PASS_THRU_DIRECTION_READ;
16015         }
16016         if (smp_pkt->smp_pkt_reqsize > 0) {
16017                 direction |= MPTSAS_PASS_THRU_DIRECTION_WRITE;
16018         }
16019 
16020         mutex_enter(&mpt->m_mutex);
16021         ret = mptsas_do_passthru(mpt, (uint8_t *)&req, (uint8_t *)&rep,
16022             (uint8_t *)smp_pkt->smp_pkt_rsp,
16023             offsetof(Mpi2SmpPassthroughRequest_t, SGL), sizeof (rep),
16024             smp_pkt->smp_pkt_rspsize - 4, direction,
16025             (uint8_t *)smp_pkt->smp_pkt_req, smp_pkt->smp_pkt_reqsize - 4,
16026             smp_pkt->smp_pkt_timeout, FKIOCTL);
16027         mutex_exit(&mpt->m_mutex);
16028         if (ret != 0) {
16029                 cmn_err(CE_WARN, "smp_start do passthru error %d", ret);
16030                 smp_pkt->smp_pkt_reason = (uchar_t)(ret);
16031                 return (DDI_FAILURE);
16032         }
16033         /* do passthrough success, check the smp status */
16034         if (LE_16(rep.IOCStatus) != MPI2_IOCSTATUS_SUCCESS) {
16035                 switch (LE_16(rep.IOCStatus)) {
16036                 case MPI2_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
16037                         smp_pkt->smp_pkt_reason = ENODEV;
16038                         break;
16039                 case MPI2_IOCSTATUS_SAS_SMP_DATA_OVERRUN:
16040                         smp_pkt->smp_pkt_reason = EOVERFLOW;
16041                         break;
16042                 case MPI2_IOCSTATUS_SAS_SMP_REQUEST_FAILED:
16043                         smp_pkt->smp_pkt_reason = EIO;
16044                         break;
16045                 default:
16046                         mptsas_log(mpt, CE_NOTE, "smp_start: get unknown ioc"
16047                             "status:%x", LE_16(rep.IOCStatus));
16048                         smp_pkt->smp_pkt_reason = EIO;
16049                         break;
16050                 }
16051                 return (DDI_FAILURE);
16052         }
16053         if (rep.SASStatus != MPI2_SASSTATUS_SUCCESS) {
16054                 mptsas_log(mpt, CE_NOTE, "smp_start: get error SAS status:%x",
16055                     rep.SASStatus);
16056                 smp_pkt->smp_pkt_reason = EIO;
16057                 return (DDI_FAILURE);
16058         }
16059 
16060         return (DDI_SUCCESS);
16061 }
16062 
16063 /*
16064  * If we didn't get a match, we need to get sas page0 for each device, and
16065  * untill we get a match. If failed, return NULL
16066  */
16067 static mptsas_target_t *
16068 mptsas_phy_to_tgt(mptsas_t *mpt, mptsas_phymask_t phymask, uint8_t phy)
16069 {
16070         int             i, j = 0;
16071         int             rval = 0;
16072         uint16_t        cur_handle;
16073         uint32_t        page_address;
16074         mptsas_target_t *ptgt = NULL;
16075 
16076         /*
16077          * PHY named device must be direct attached and attaches to
16078          * narrow port, if the iport is not parent of the device which
16079          * we are looking for.
16080          */
16081         for (i = 0; i < MPTSAS_MAX_PHYS; i++) {
16082                 if ((1 << i) & phymask)
16083                         j++;
16084         }
16085 
16086         if (j > 1)
16087                 return (NULL);
16088 
16089         /*
16090          * Must be a narrow port and single device attached to the narrow port
16091          * So the physical port num of device  which is equal to the iport's
16092          * port num is the device what we are looking for.
16093          */
16094 
16095         if (mpt->m_phy_info[phy].phy_mask != phymask)
16096                 return (NULL);
16097 
16098         mutex_enter(&mpt->m_mutex);
16099 
16100         ptgt = refhash_linear_search(mpt->m_targets, mptsas_target_eval_nowwn,
16101             &phy);
16102         if (ptgt != NULL) {
16103                 mutex_exit(&mpt->m_mutex);
16104                 return (ptgt);
16105         }
16106 
16107         if (mpt->m_done_traverse_dev) {
16108                 mutex_exit(&mpt->m_mutex);
16109                 return (NULL);
16110         }
16111 
16112         /* If didn't get a match, come here */
16113         cur_handle = mpt->m_dev_handle;
16114         for (; ; ) {
16115                 ptgt = NULL;
16116                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE &
16117                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) | (uint32_t)cur_handle;
16118                 rval = mptsas_get_target_device_info(mpt, page_address,
16119                     &cur_handle, &ptgt);
16120                 if ((rval == DEV_INFO_FAIL_PAGE0) ||
16121                     (rval == DEV_INFO_FAIL_ALLOC)) {
16122                         break;
16123                 }
16124                 if ((rval == DEV_INFO_WRONG_DEVICE_TYPE) ||
16125                     (rval == DEV_INFO_PHYS_DISK)) {
16126                         continue;
16127                 }
16128                 mpt->m_dev_handle = cur_handle;
16129 
16130                 if ((ptgt->m_addr.mta_wwn == 0) && (ptgt->m_phynum == phy)) {
16131                         break;
16132                 }
16133         }
16134 
16135         mutex_exit(&mpt->m_mutex);
16136         return (ptgt);
16137 }
16138 
16139 /*
16140  * The ptgt->m_addr.mta_wwn contains the wwid for each disk.
16141  * For Raid volumes, we need to check m_raidvol[x].m_raidwwid
16142  * If we didn't get a match, we need to get sas page0 for each device, and
16143  * untill we get a match
16144  * If failed, return NULL
16145  */
16146 static mptsas_target_t *
16147 mptsas_wwid_to_ptgt(mptsas_t *mpt, mptsas_phymask_t phymask, uint64_t wwid)
16148 {
16149         int             rval = 0;
16150         uint16_t        cur_handle;
16151         uint32_t        page_address;
16152         mptsas_target_t *tmp_tgt = NULL;
16153         mptsas_target_addr_t addr;
16154 
16155         addr.mta_wwn = wwid;
16156         addr.mta_phymask = phymask;
16157         mutex_enter(&mpt->m_mutex);
16158         tmp_tgt = refhash_lookup(mpt->m_targets, &addr);
16159         if (tmp_tgt != NULL) {
16160                 mutex_exit(&mpt->m_mutex);
16161                 return (tmp_tgt);
16162         }
16163 
16164         if (phymask == 0) {
16165                 /*
16166                  * It's IR volume
16167                  */
16168                 rval = mptsas_get_raid_info(mpt);
16169                 if (rval) {
16170                         tmp_tgt = refhash_lookup(mpt->m_targets, &addr);
16171                 }
16172                 mutex_exit(&mpt->m_mutex);
16173                 return (tmp_tgt);
16174         }
16175 
16176         if (mpt->m_done_traverse_dev) {
16177                 mutex_exit(&mpt->m_mutex);
16178                 return (NULL);
16179         }
16180 
16181         /* If didn't get a match, come here */
16182         cur_handle = mpt->m_dev_handle;
16183         for (;;) {
16184                 tmp_tgt = NULL;
16185                 page_address = (MPI2_SAS_DEVICE_PGAD_FORM_GET_NEXT_HANDLE &
16186                     MPI2_SAS_DEVICE_PGAD_FORM_MASK) | cur_handle;
16187                 rval = mptsas_get_target_device_info(mpt, page_address,
16188                     &cur_handle, &tmp_tgt);
16189                 if ((rval == DEV_INFO_FAIL_PAGE0) ||
16190                     (rval == DEV_INFO_FAIL_ALLOC)) {
16191                         tmp_tgt = NULL;
16192                         break;
16193                 }
16194                 if ((rval == DEV_INFO_WRONG_DEVICE_TYPE) ||
16195                     (rval == DEV_INFO_PHYS_DISK)) {
16196                         continue;
16197                 }
16198                 mpt->m_dev_handle = cur_handle;
16199                 if ((tmp_tgt->m_addr.mta_wwn) &&
16200                     (tmp_tgt->m_addr.mta_wwn == wwid) &&
16201                     (tmp_tgt->m_addr.mta_phymask == phymask)) {
16202                         break;
16203                 }
16204         }
16205 
16206         mutex_exit(&mpt->m_mutex);
16207         return (tmp_tgt);
16208 }
16209 
16210 static mptsas_smp_t *
16211 mptsas_wwid_to_psmp(mptsas_t *mpt, mptsas_phymask_t phymask, uint64_t wwid)
16212 {
16213         int             rval = 0;
16214         uint16_t        cur_handle;
16215         uint32_t        page_address;
16216         mptsas_smp_t    smp_node, *psmp = NULL;
16217         mptsas_target_addr_t addr;
16218 
16219         addr.mta_wwn = wwid;
16220         addr.mta_phymask = phymask;
16221         mutex_enter(&mpt->m_mutex);
16222         psmp = refhash_lookup(mpt->m_smp_targets, &addr);
16223         if (psmp != NULL) {
16224                 mutex_exit(&mpt->m_mutex);
16225                 return (psmp);
16226         }
16227 
16228         if (mpt->m_done_traverse_smp) {
16229                 mutex_exit(&mpt->m_mutex);
16230                 return (NULL);
16231         }
16232 
16233         /* If didn't get a match, come here */
16234         cur_handle = mpt->m_smp_devhdl;
16235         for (;;) {
16236                 psmp = NULL;
16237                 page_address = (MPI2_SAS_EXPAND_PGAD_FORM_GET_NEXT_HNDL &
16238                     MPI2_SAS_EXPAND_PGAD_FORM_MASK) | (uint32_t)cur_handle;
16239                 rval = mptsas_get_sas_expander_page0(mpt, page_address,
16240                     &smp_node);
16241                 if (rval != DDI_SUCCESS) {
16242                         break;
16243                 }
16244                 mpt->m_smp_devhdl = cur_handle = smp_node.m_devhdl;
16245                 psmp = mptsas_smp_alloc(mpt, &smp_node);
16246                 ASSERT(psmp);
16247                 if ((psmp->m_addr.mta_wwn) && (psmp->m_addr.mta_wwn == wwid) &&
16248                     (psmp->m_addr.mta_phymask == phymask)) {
16249                         break;
16250                 }
16251         }
16252 
16253         mutex_exit(&mpt->m_mutex);
16254         return (psmp);
16255 }
16256 
16257 mptsas_target_t *
16258 mptsas_tgt_alloc(mptsas_t *mpt, uint16_t devhdl, uint64_t wwid,
16259     uint32_t devinfo, mptsas_phymask_t phymask, uint8_t phynum)
16260 {
16261         mptsas_target_t *tmp_tgt = NULL;
16262         mptsas_target_addr_t addr;
16263 
16264         addr.mta_wwn = wwid;
16265         addr.mta_phymask = phymask;
16266         tmp_tgt = refhash_lookup(mpt->m_targets, &addr);
16267         if (tmp_tgt != NULL) {
16268                 NDBG20(("Hash item already exist"));
16269                 tmp_tgt->m_deviceinfo = devinfo;
16270                 tmp_tgt->m_devhdl = devhdl;  /* XXX - duplicate? */
16271                 return (tmp_tgt);
16272         }
16273         tmp_tgt = kmem_zalloc(sizeof (struct mptsas_target), KM_SLEEP);
16274         if (tmp_tgt == NULL) {
16275                 cmn_err(CE_WARN, "Fatal, allocated tgt failed");
16276                 return (NULL);
16277         }
16278         tmp_tgt->m_devhdl = devhdl;
16279         tmp_tgt->m_addr.mta_wwn = wwid;
16280         tmp_tgt->m_deviceinfo = devinfo;
16281         tmp_tgt->m_addr.mta_phymask = phymask;
16282         tmp_tgt->m_phynum = phynum;
16283         /* Initialized the tgt structure */
16284         tmp_tgt->m_qfull_retries = QFULL_RETRIES;
16285         tmp_tgt->m_qfull_retry_interval =
16286             drv_usectohz(QFULL_RETRY_INTERVAL * 1000);
16287         tmp_tgt->m_t_throttle = MAX_THROTTLE;
16288         TAILQ_INIT(&tmp_tgt->m_active_cmdq);
16289 
16290         refhash_insert(mpt->m_targets, tmp_tgt);
16291 
16292         return (tmp_tgt);
16293 }
16294 
16295 static void
16296 mptsas_smp_target_copy(mptsas_smp_t *src, mptsas_smp_t *dst)
16297 {
16298         dst->m_devhdl = src->m_devhdl;
16299         dst->m_deviceinfo = src->m_deviceinfo;
16300         dst->m_pdevhdl = src->m_pdevhdl;
16301         dst->m_pdevinfo = src->m_pdevinfo;
16302 }
16303 
16304 static mptsas_smp_t *
16305 mptsas_smp_alloc(mptsas_t *mpt, mptsas_smp_t *data)
16306 {
16307         mptsas_target_addr_t addr;
16308         mptsas_smp_t *ret_data;
16309 
16310         addr.mta_wwn = data->m_addr.mta_wwn;
16311         addr.mta_phymask = data->m_addr.mta_phymask;
16312         ret_data = refhash_lookup(mpt->m_smp_targets, &addr);
16313         /*
16314          * If there's already a matching SMP target, update its fields
16315          * in place.  Since the address is not changing, it's safe to do
16316          * this.  We cannot just bcopy() here because the structure we've
16317          * been given has invalid hash links.
16318          */
16319         if (ret_data != NULL) {
16320                 mptsas_smp_target_copy(data, ret_data);
16321                 return (ret_data);
16322         }
16323 
16324         ret_data = kmem_alloc(sizeof (mptsas_smp_t), KM_SLEEP);
16325         bcopy(data, ret_data, sizeof (mptsas_smp_t));
16326         refhash_insert(mpt->m_smp_targets, ret_data);
16327         return (ret_data);
16328 }
16329 
16330 /*
16331  * Functions for SGPIO LED support
16332  */
16333 static dev_info_t *
16334 mptsas_get_dip_from_dev(dev_t dev, mptsas_phymask_t *phymask)
16335 {
16336         dev_info_t      *dip;
16337         int             prop;
16338         dip = e_ddi_hold_devi_by_dev(dev, 0);
16339         if (dip == NULL)
16340                 return (dip);
16341         prop = ddi_prop_get_int(DDI_DEV_T_ANY, dip, 0,
16342             "phymask", 0);
16343         *phymask = (mptsas_phymask_t)prop;
16344         ddi_release_devi(dip);
16345         return (dip);
16346 }
16347 static mptsas_target_t *
16348 mptsas_addr_to_ptgt(mptsas_t *mpt, char *addr, mptsas_phymask_t phymask)
16349 {
16350         uint8_t                 phynum;
16351         uint64_t                wwn;
16352         int                     lun;
16353         mptsas_target_t         *ptgt = NULL;
16354 
16355         if (mptsas_parse_address(addr, &wwn, &phynum, &lun) != DDI_SUCCESS) {
16356                 return (NULL);
16357         }
16358         if (addr[0] == 'w') {
16359                 ptgt = mptsas_wwid_to_ptgt(mpt, (int)phymask, wwn);
16360         } else {
16361                 ptgt = mptsas_phy_to_tgt(mpt, (int)phymask, phynum);
16362         }
16363         return (ptgt);
16364 }
16365 
16366 static int
16367 mptsas_flush_led_status(mptsas_t *mpt, mptsas_target_t *ptgt)
16368 {
16369         uint32_t slotstatus = 0;
16370 
16371         /* Build an MPI2 Slot Status based on our view of the world */
16372         if (ptgt->m_led_status & (1 << (MPTSAS_LEDCTL_LED_IDENT - 1)))
16373                 slotstatus |= MPI2_SEP_REQ_SLOTSTATUS_IDENTIFY_REQUEST;
16374         if (ptgt->m_led_status & (1 << (MPTSAS_LEDCTL_LED_FAIL - 1)))
16375                 slotstatus |= MPI2_SEP_REQ_SLOTSTATUS_PREDICTED_FAULT;
16376         if (ptgt->m_led_status & (1 << (MPTSAS_LEDCTL_LED_OK2RM - 1)))
16377                 slotstatus |= MPI2_SEP_REQ_SLOTSTATUS_REQUEST_REMOVE;
16378 
16379         /* Write it to the controller */
16380         NDBG14(("mptsas_ioctl: set LED status %x for slot %x",
16381             slotstatus, ptgt->m_slot_num));
16382         return (mptsas_send_sep(mpt, ptgt, &slotstatus,
16383             MPI2_SEP_REQ_ACTION_WRITE_STATUS));
16384 }
16385 
16386 /*
16387  *  send sep request, use enclosure/slot addressing
16388  */
16389 static int
16390 mptsas_send_sep(mptsas_t *mpt, mptsas_target_t *ptgt,
16391     uint32_t *status, uint8_t act)
16392 {
16393         Mpi2SepRequest_t        req;
16394         Mpi2SepReply_t          rep;
16395         int                     ret;
16396 
16397         ASSERT(mutex_owned(&mpt->m_mutex));
16398 
16399         /*
16400          * We only support SEP control of directly-attached targets, in which
16401          * case the "SEP" we're talking to is a virtual one contained within
16402          * the HBA itself.  This is necessary because DA targets typically have
16403          * no other mechanism for LED control.  Targets for which a separate
16404          * enclosure service processor exists should be controlled via ses(7d)
16405          * or sgen(7d).  Furthermore, since such requests can time out, they
16406          * should be made in user context rather than in response to
16407          * asynchronous fabric changes.
16408          *
16409          * In addition, we do not support this operation for RAID volumes,
16410          * since there is no slot associated with them.
16411          */
16412         if (!(ptgt->m_deviceinfo & DEVINFO_DIRECT_ATTACHED) ||
16413             ptgt->m_addr.mta_phymask == 0) {
16414                 return (ENOTTY);
16415         }
16416 
16417         bzero(&req, sizeof (req));
16418         bzero(&rep, sizeof (rep));
16419 
16420         req.Function = MPI2_FUNCTION_SCSI_ENCLOSURE_PROCESSOR;
16421         req.Action = act;
16422         req.Flags = MPI2_SEP_REQ_FLAGS_ENCLOSURE_SLOT_ADDRESS;
16423         req.EnclosureHandle = LE_16(ptgt->m_enclosure);
16424         req.Slot = LE_16(ptgt->m_slot_num);
16425         if (act == MPI2_SEP_REQ_ACTION_WRITE_STATUS) {
16426                 req.SlotStatus = LE_32(*status);
16427         }
16428         ret = mptsas_do_passthru(mpt, (uint8_t *)&req, (uint8_t *)&rep, NULL,
16429             sizeof (req), sizeof (rep), NULL, 0, NULL, 0, 60, FKIOCTL);
16430         if (ret != 0) {
16431                 mptsas_log(mpt, CE_NOTE, "mptsas_send_sep: passthru SEP "
16432                     "Processor Request message error %d", ret);
16433                 return (ret);
16434         }
16435         /* do passthrough success, check the ioc status */
16436         if (LE_16(rep.IOCStatus) != MPI2_IOCSTATUS_SUCCESS) {
16437                 mptsas_log(mpt, CE_NOTE, "send_sep act %x: ioc "
16438                     "status:%x loginfo %x", act, LE_16(rep.IOCStatus),
16439                     LE_32(rep.IOCLogInfo));
16440                 switch (LE_16(rep.IOCStatus) & MPI2_IOCSTATUS_MASK) {
16441                 case MPI2_IOCSTATUS_INVALID_FUNCTION:
16442                 case MPI2_IOCSTATUS_INVALID_VPID:
16443                 case MPI2_IOCSTATUS_INVALID_FIELD:
16444                 case MPI2_IOCSTATUS_INVALID_STATE:
16445                 case MPI2_IOCSTATUS_OP_STATE_NOT_SUPPORTED:
16446                 case MPI2_IOCSTATUS_CONFIG_INVALID_ACTION:
16447                 case MPI2_IOCSTATUS_CONFIG_INVALID_TYPE:
16448                 case MPI2_IOCSTATUS_CONFIG_INVALID_PAGE:
16449                 case MPI2_IOCSTATUS_CONFIG_INVALID_DATA:
16450                 case MPI2_IOCSTATUS_CONFIG_NO_DEFAULTS:
16451                         return (EINVAL);
16452                 case MPI2_IOCSTATUS_BUSY:
16453                         return (EBUSY);
16454                 case MPI2_IOCSTATUS_INSUFFICIENT_RESOURCES:
16455                         return (EAGAIN);
16456                 case MPI2_IOCSTATUS_INVALID_SGL:
16457                 case MPI2_IOCSTATUS_INTERNAL_ERROR:
16458                 case MPI2_IOCSTATUS_CONFIG_CANT_COMMIT:
16459                 default:
16460                         return (EIO);
16461                 }
16462         }
16463         if (act != MPI2_SEP_REQ_ACTION_WRITE_STATUS) {
16464                 *status = LE_32(rep.SlotStatus);
16465         }
16466 
16467         return (0);
16468 }
16469 
16470 int
16471 mptsas_dma_addr_create(mptsas_t *mpt, ddi_dma_attr_t dma_attr,
16472     ddi_dma_handle_t *dma_hdp, ddi_acc_handle_t *acc_hdp, caddr_t *dma_memp,
16473     uint32_t alloc_size, ddi_dma_cookie_t *cookiep)
16474 {
16475         ddi_dma_cookie_t        new_cookie;
16476         size_t                  alloc_len;
16477         uint_t                  ncookie;
16478 
16479         if (cookiep == NULL)
16480                 cookiep = &new_cookie;
16481 
16482         if (ddi_dma_alloc_handle(mpt->m_dip, &dma_attr, DDI_DMA_SLEEP,
16483             NULL, dma_hdp) != DDI_SUCCESS) {
16484                 return (FALSE);
16485         }
16486 
16487         if (ddi_dma_mem_alloc(*dma_hdp, alloc_size, &mpt->m_dev_acc_attr,
16488             DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, dma_memp, &alloc_len,
16489             acc_hdp) != DDI_SUCCESS) {
16490                 ddi_dma_free_handle(dma_hdp);
16491                 *dma_hdp = NULL;
16492                 return (FALSE);
16493         }
16494 
16495         if (ddi_dma_addr_bind_handle(*dma_hdp, NULL, *dma_memp, alloc_len,
16496             (DDI_DMA_RDWR | DDI_DMA_CONSISTENT), DDI_DMA_SLEEP, NULL,
16497             cookiep, &ncookie) != DDI_DMA_MAPPED) {
16498                 (void) ddi_dma_mem_free(acc_hdp);
16499                 ddi_dma_free_handle(dma_hdp);
16500                 *dma_hdp = NULL;
16501                 return (FALSE);
16502         }
16503 
16504         return (TRUE);
16505 }
16506 
16507 void
16508 mptsas_dma_addr_destroy(ddi_dma_handle_t *dma_hdp, ddi_acc_handle_t *acc_hdp)
16509 {
16510         if (*dma_hdp == NULL)
16511                 return;
16512 
16513         (void) ddi_dma_unbind_handle(*dma_hdp);
16514         (void) ddi_dma_mem_free(acc_hdp);
16515         ddi_dma_free_handle(dma_hdp);
16516         *dma_hdp = NULL;
16517 }