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--- old/usr/src/uts/common/io/comstar/port/fct/discovery.c
+++ new/usr/src/uts/common/io/comstar/port/fct/discovery.c
1 1 /*
2 2 * CDDL HEADER START
3 3 *
4 4 * The contents of this file are subject to the terms of the
5 5 * Common Development and Distribution License (the "License").
6 6 * You may not use this file except in compliance with the License.
7 7 *
8 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 9 * or http://www.opensolaris.org/os/licensing.
10 10 * See the License for the specific language governing permissions
11 11 * and limitations under the License.
12 12 *
13 13 * When distributing Covered Code, include this CDDL HEADER in each
14 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 15 * If applicable, add the following below this CDDL HEADER, with the
16 16 * fields enclosed by brackets "[]" replaced with your own identifying
17 17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 18 *
19 19 * CDDL HEADER END
20 20 */
21 21 /*
22 22 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
23 23 */
24 24
25 25 #include <sys/sysmacros.h>
26 26 #include <sys/conf.h>
27 27 #include <sys/file.h>
28 28 #include <sys/ddi.h>
29 29 #include <sys/sunddi.h>
30 30 #include <sys/modctl.h>
31 31 #include <sys/scsi/scsi.h>
32 32 #include <sys/scsi/impl/scsi_reset_notify.h>
33 33 #include <sys/disp.h>
34 34 #include <sys/byteorder.h>
35 35 #include <sys/varargs.h>
36 36 #include <sys/atomic.h>
37 37 #include <sys/sdt.h>
38 38
39 39 #include <sys/stmf.h>
40 40 #include <sys/stmf_ioctl.h>
41 41 #include <sys/portif.h>
42 42 #include <sys/fct.h>
43 43 #include <sys/fctio.h>
44 44
45 45 #include "fct_impl.h"
46 46 #include "discovery.h"
47 47
48 48 disc_action_t fct_handle_local_port_event(fct_i_local_port_t *iport);
49 49 disc_action_t fct_walk_discovery_queue(fct_i_local_port_t *iport);
50 50 disc_action_t fct_process_els(fct_i_local_port_t *iport,
51 51 fct_i_remote_port_t *irp);
52 52 fct_status_t fct_send_accrjt(fct_cmd_t *cmd, uint8_t accrjt,
53 53 uint8_t reason, uint8_t expl);
54 54 disc_action_t fct_link_init_complete(fct_i_local_port_t *iport);
55 55 fct_status_t fct_complete_previous_li_cmd(fct_i_local_port_t *iport);
56 56 fct_status_t fct_sol_plogi(fct_i_local_port_t *iport, uint32_t id,
57 57 fct_cmd_t **ret_ppcmd, int implicit);
58 58 fct_status_t fct_sol_ct(fct_i_local_port_t *iport, uint32_t id,
59 59 fct_cmd_t **ret_ppcmd, uint16_t opcode);
60 60 fct_status_t fct_ns_scr(fct_i_local_port_t *iport, uint32_t id,
61 61 fct_cmd_t **ret_ppcmd);
62 62 static disc_action_t fct_check_cmdlist(fct_i_local_port_t *iport);
63 63 static disc_action_t fct_check_solcmd_queue(fct_i_local_port_t *iport);
64 64 static void fct_rscn_verify(fct_i_local_port_t *iport,
65 65 uint8_t *rscn_req_payload, uint32_t rscn_req_size);
66 66 void fct_gid_cb(fct_i_cmd_t *icmd);
67 67
68 68 char *fct_els_names[] = { 0, "LS_RJT", "ACC", "PLOGI", "FLOGI", "LOGO",
69 69 "ABTX", "RCS", "RES", "RSS", "RSI", "ESTS",
70 70 "ESTC", "ADVC", "RTV", "RLS",
71 71 /* 0x10 */ "ECHO", "TEST", "RRQ", "REC", "SRR", 0, 0,
72 72 0, 0, 0, 0, 0, 0, 0, 0, 0,
73 73 /* 0x20 */ "PRLI", "PRLO", "SCN", "TPLS",
74 74 "TPRLO", 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
75 75 /* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
76 76 /* 0x40 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
77 77 /* 0x50 */ "PDISC", "FDISC", "ADISC", "RNC", "FARP",
78 78 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
79 79 /* 0x60 */ "FAN", "RSCN", "SCR", 0, 0, 0, 0, 0, 0, 0, 0,
80 80 0, 0, 0, 0, 0,
81 81 /* 0x70 */ "LINIT", "LPC", "LSTS", 0, 0, 0, 0, 0,
82 82 "RNID", "RLIR", "LIRR", 0, 0, 0, 0, 0
83 83 };
84 84
85 85 extern uint32_t fct_rscn_options;
86 86
87 87 /*
88 88 * NOTE: if anybody drops the iport_worker_lock then they should not return
89 89 * DISC_ACTION_NO_WORK. Which also means, dont drop the lock if you have
90 90 * nothing to do. Or else return DISC_ACTION_RESCAN or DISC_ACTION_DELAY_RESCAN.
91 91 * But you cannot be infinitly returning those so have some logic to
92 92 * determine that there is nothing to do without dropping the lock.
93 93 */
94 94 void
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95 95 fct_port_worker(void *arg)
96 96 {
97 97 fct_local_port_t *port = (fct_local_port_t *)arg;
98 98 fct_i_local_port_t *iport = (fct_i_local_port_t *)
99 99 port->port_fct_private;
100 100 disc_action_t suggested_action;
101 101 clock_t dl, short_delay, long_delay;
102 102 int64_t tmp_delay;
103 103
104 104 iport->iport_cmdcheck_clock = ddi_get_lbolt() +
105 - drv_usectohz(FCT_CMDLIST_CHECK_SECONDS * 1000000);
105 + drv_sectohz(FCT_CMDLIST_CHECK_SECONDS);
106 106 short_delay = drv_usectohz(10000);
107 - long_delay = drv_usectohz(1000000);
107 + long_delay = drv_sectohz(1);
108 108
109 109 stmf_trace(iport->iport_alias, "iport is %p", iport);
110 110 /* Discovery loop */
111 111 mutex_enter(&iport->iport_worker_lock);
112 112 atomic_or_32(&iport->iport_flags, IPORT_WORKER_RUNNING);
113 113 while ((iport->iport_flags & IPORT_TERMINATE_WORKER) == 0) {
114 114 suggested_action = DISC_ACTION_NO_WORK;
115 115 /*
116 116 * Local port events are of the highest prioriy
117 117 */
118 118 if (iport->iport_event_head) {
119 119 suggested_action |= fct_handle_local_port_event(iport);
120 120 }
121 121
122 122 /*
123 123 * We could post solicited ELSes to discovery queue.
124 124 * solicited CT will be processed inside fct_check_solcmd_queue
125 125 */
126 126 if (iport->iport_solcmd_queue) {
127 127 suggested_action |= fct_check_solcmd_queue(iport);
128 128 }
129 129
130 130 /*
131 131 * All solicited and unsolicited ELS will be handled here
132 132 */
133 133 if (iport->iport_rpwe_head) {
134 134 suggested_action |= fct_walk_discovery_queue(iport);
135 135 }
136 136
137 137 /*
138 138 * We only process it when there's no outstanding link init CMD
139 139 */
140 140 if ((iport->iport_link_state == PORT_STATE_LINK_INIT_START) &&
141 141 !(iport->iport_li_state & (LI_STATE_FLAG_CMD_WAITING |
142 142 LI_STATE_FLAG_NO_LI_YET))) {
143 143 suggested_action |= fct_process_link_init(iport);
144 144 }
145 145
146 146 /*
147 147 * We process cmd aborting in the end
148 148 */
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149 149 if (iport->iport_abort_queue) {
150 150 suggested_action |= fct_cmd_terminator(iport);
151 151 }
152 152
153 153 /*
154 154 * Check cmd max/free
155 155 */
156 156 if (iport->iport_cmdcheck_clock <= ddi_get_lbolt()) {
157 157 suggested_action |= fct_check_cmdlist(iport);
158 158 iport->iport_cmdcheck_clock = ddi_get_lbolt() +
159 - drv_usectohz(FCT_CMDLIST_CHECK_SECONDS * 1000000);
159 + drv_sectohz(FCT_CMDLIST_CHECK_SECONDS);
160 160 iport->iport_max_active_ncmds = 0;
161 161 }
162 162
163 163 if (iport->iport_offline_prstate != FCT_OPR_DONE) {
164 164 suggested_action |= fct_handle_port_offline(iport);
165 165 }
166 166
167 167 if (suggested_action & DISC_ACTION_RESCAN) {
168 168 continue;
169 169 } else if (suggested_action & DISC_ACTION_DELAY_RESCAN) {
170 170 /*
171 171 * This is not very optimum as whoever returned
172 172 * DISC_ACTION_DELAY_RESCAN must have dropped the lock
173 173 * and more things might have queued up. But since
174 174 * we are only doing small delays, it only delays
175 175 * things by a few ms, which is okey.
176 176 */
177 177 if (suggested_action & DISC_ACTION_USE_SHORT_DELAY) {
178 178 dl = short_delay;
179 179 } else {
180 180 dl = long_delay;
181 181 }
182 182 atomic_or_32(&iport->iport_flags,
183 183 IPORT_WORKER_DOING_TIMEDWAIT);
184 184 (void) cv_reltimedwait(&iport->iport_worker_cv,
185 185 &iport->iport_worker_lock, dl, TR_CLOCK_TICK);
186 186 atomic_and_32(&iport->iport_flags,
187 187 ~IPORT_WORKER_DOING_TIMEDWAIT);
188 188 } else {
189 189 atomic_or_32(&iport->iport_flags,
190 190 IPORT_WORKER_DOING_WAIT);
191 191 tmp_delay = (int64_t)(iport->iport_cmdcheck_clock -
192 192 ddi_get_lbolt());
193 193 if (tmp_delay < 0) {
194 194 tmp_delay = (int64_t)short_delay;
195 195 }
196 196 (void) cv_reltimedwait(&iport->iport_worker_cv,
197 197 &iport->iport_worker_lock, (clock_t)tmp_delay,
198 198 TR_CLOCK_TICK);
199 199 atomic_and_32(&iport->iport_flags,
200 200 ~IPORT_WORKER_DOING_WAIT);
201 201 }
202 202 }
203 203
204 204 atomic_and_32(&iport->iport_flags, ~IPORT_WORKER_RUNNING);
205 205 mutex_exit(&iport->iport_worker_lock);
206 206 }
207 207
208 208 static char *topologies[] = { "Unknown", "Direct Pt-to-Pt", "Private Loop",
209 209 "Unknown", "Unknown", "Fabric Pt-to-Pt",
210 210 "Public Loop" };
211 211
212 212 void
213 213 fct_li_to_txt(fct_link_info_t *li, char *topology, char *speed)
214 214 {
215 215 uint8_t s = li->port_speed;
216 216
217 217 if (li->port_topology > PORT_TOPOLOGY_PUBLIC_LOOP) {
218 218 (void) sprintf(topology, "Invalid %02x", li->port_topology);
219 219 } else {
220 220 (void) strcpy(topology, topologies[li->port_topology]);
221 221 }
222 222
223 223 if ((s == 0) || ((s & 0xf00) != 0) || !ISP2(s)) {
224 224 speed[0] = '?';
225 225 } else if (s == PORT_SPEED_10G) {
226 226 speed[0] = '1';
227 227 speed[1] = '0';
228 228 speed[2] = 'G';
229 229 speed[3] = 0;
230 230 } else {
231 231 speed[0] = '0' + li->port_speed;
232 232 speed[1] = 'G';
233 233 speed[2] = 0;
234 234 }
235 235 }
236 236
237 237 /*
238 238 * discovery lock held.
239 239 * XXX: Implement command cleanup upon Link down.
240 240 * XXX: Implement a clean start and FC-GS registrations upon Link up.
241 241 *
242 242 * ================ Local Port State Machine ============
243 243 * <hba fatal> <Link up>---|
244 244 * | v
245 245 * | <Start>--->[LINK_DOWN]--->[LINK_INIT_START]--->[LINK_INIT_DONE]
246 246 * | ^ ^ ^ | |
247 247 * | |---| | |--<Link down> |-| |---><Link Reset><--|
248 248 * | | | v | v
249 249 * |->[FATAL_CLEANING] [LINK_DOWN_CLEANING]--->[LINK_UP_CLEANING]
250 250 * ^
251 251 * |--<Link up>
252 252 * =======================================================
253 253 * An explicit port_online() is only allowed in LINK_DOWN state.
254 254 * An explicit port_offline() is only allowed in LINKDOWN and
255 255 * LINK_INIT_DONE state.
256 256 */
257 257 disc_action_t
258 258 fct_handle_local_port_event(fct_i_local_port_t *iport)
259 259 {
260 260 disc_action_t ret = DISC_ACTION_RESCAN;
261 261 fct_i_event_t *in;
262 262 uint16_t old_state, new_state, new_bits;
263 263 int dqueue_and_free = 1;
264 264 int retry_implicit_logo = 0;
265 265
266 266 if (iport->iport_event_head == NULL)
267 267 return (DISC_ACTION_NO_WORK);
268 268 in = iport->iport_event_head;
269 269 mutex_exit(&iport->iport_worker_lock);
270 270
271 271 rw_enter(&iport->iport_lock, RW_WRITER);
272 272
273 273 if (in->event_type == FCT_EVENT_LINK_UP) {
274 274 DTRACE_FC_1(link__up, fct_i_local_port_t, iport);
275 275 } else if (in->event_type == FCT_EVENT_LINK_DOWN) {
276 276 DTRACE_FC_1(link__down, fct_i_local_port_t, iport);
277 277 }
278 278
279 279 /* Calculate new state */
280 280 new_state = iport->iport_link_state;
281 281
282 282 if (in->event_type == FCT_EVENT_LINK_DOWN) {
283 283 new_state = PORT_STATE_LINK_DOWN_CLEANING;
284 284 } else if (in->event_type == FCT_EVENT_LINK_UP) {
285 285 if (iport->iport_link_state == PORT_STATE_LINK_DOWN_CLEANING)
286 286 new_state = PORT_STATE_LINK_UP_CLEANING;
287 287 else if (iport->iport_link_state == PORT_STATE_LINK_DOWN)
288 288 new_state = PORT_STATE_LINK_INIT_START;
289 289 else { /* This should not happen */
290 290 stmf_trace(iport->iport_alias,
291 291 "Link up received when link state was"
292 292 "%x, Ignoring...", iport->iport_link_state);
293 293 }
294 294 } else if (in->event_type == FCT_I_EVENT_CLEANUP_POLL) {
295 295 if (!fct_local_port_cleanup_done(iport)) {
296 296 if (iport->iport_link_cleanup_retry >= 3) {
297 297 iport->iport_link_cleanup_retry = 0;
298 298 retry_implicit_logo = 1;
299 299 } else {
300 300 iport->iport_link_cleanup_retry++;
301 301 }
302 302 dqueue_and_free = 0;
303 303 ret = DISC_ACTION_DELAY_RESCAN;
304 304 } else {
305 305 if (iport->iport_link_state ==
306 306 PORT_STATE_LINK_DOWN_CLEANING) {
307 307 new_state = PORT_STATE_LINK_DOWN;
308 308 } else if (iport->iport_link_state ==
309 309 PORT_STATE_LINK_UP_CLEANING) {
310 310 new_state = PORT_STATE_LINK_INIT_START;
311 311 } else { /* This should not have happened */
312 312 cmn_err(CE_WARN, "port state changed to %x "
313 313 "during cleanup", iport->iport_link_state);
314 314 new_state = PORT_STATE_LINK_DOWN;
315 315 }
316 316 }
317 317 } else if (in->event_type == FCT_EVENT_LINK_RESET) {
318 318 /* Link reset is only allowed when we are Online */
319 319 if (iport->iport_link_state & S_LINK_ONLINE) {
320 320 new_state = PORT_STATE_LINK_UP_CLEANING;
321 321 }
322 322 } else if (in->event_type == FCT_I_EVENT_LINK_INIT_DONE) {
323 323 if (iport->iport_link_state == PORT_STATE_LINK_INIT_START) {
324 324 new_state = PORT_STATE_LINK_INIT_DONE;
325 325 iport->iport_li_state = LI_STATE_START;
326 326 }
327 327 } else {
328 328 ASSERT(0);
329 329 }
330 330 new_bits = iport->iport_link_state ^
331 331 (iport->iport_link_state | new_state);
332 332 old_state = iport->iport_link_state;
333 333 iport->iport_link_state = new_state;
334 334 rw_exit(&iport->iport_lock);
335 335
336 336 stmf_trace(iport->iport_alias, "port state change from %x to %x",
337 337 old_state, new_state);
338 338
339 339 if (new_bits & S_PORT_CLEANUP) {
340 340 (void) fct_implicitly_logo_all(iport, 0);
341 341 fct_handle_event(iport->iport_port,
342 342 FCT_I_EVENT_CLEANUP_POLL, 0, 0);
343 343 }
344 344 if (retry_implicit_logo) {
345 345 (void) fct_implicitly_logo_all(iport, 1);
346 346 }
347 347 if (new_bits & S_INIT_LINK) {
348 348 fct_link_info_t *li = &iport->iport_link_info;
349 349 fct_status_t li_ret;
350 350 iport->iport_li_state |= LI_STATE_FLAG_NO_LI_YET;
351 351 bzero(li, sizeof (*li));
352 352 if ((li_ret = iport->iport_port->port_get_link_info(
353 353 iport->iport_port, li)) != FCT_SUCCESS) {
354 354 stmf_trace(iport->iport_alias, "iport-%p: "
355 355 "port_get_link_info failed, ret %llx, forcing "
356 356 "link down.", iport, li_ret);
357 357 fct_handle_event(iport->iport_port,
358 358 FCT_EVENT_LINK_DOWN, 0, 0);
359 359 } else {
360 360 iport->iport_login_retry = 0;
361 361 /* This will reset LI_STATE_FLAG_NO_LI_YET */
362 362 iport->iport_li_state = LI_STATE_START;
363 363 atomic_or_32(&iport->iport_flags,
364 364 IPORT_ALLOW_UNSOL_FLOGI);
365 365 }
366 366 fct_log_local_port_event(iport->iport_port,
367 367 ESC_SUNFC_PORT_ONLINE);
368 368 } else if (new_bits & S_RCVD_LINK_DOWN) {
369 369 fct_log_local_port_event(iport->iport_port,
370 370 ESC_SUNFC_PORT_OFFLINE);
371 371 }
372 372
373 373 mutex_enter(&iport->iport_worker_lock);
374 374 if (in && dqueue_and_free) {
375 375 iport->iport_event_head = in->event_next;
376 376 if (iport->iport_event_head == NULL)
377 377 iport->iport_event_tail = NULL;
378 378 kmem_free(in, sizeof (*in));
379 379 }
380 380 return (ret);
381 381 }
382 382
383 383 int
384 384 fct_lport_has_bigger_wwn(fct_i_local_port_t *iport)
385 385 {
386 386 uint8_t *l, *r;
387 387 int i;
388 388 uint64_t wl, wr;
389 389
390 390 l = iport->iport_port->port_pwwn;
391 391 r = iport->iport_link_info.port_rpwwn;
392 392
393 393 for (i = 0, wl = 0; i < 8; i++) {
394 394 wl <<= 8;
395 395 wl |= l[i];
396 396 }
397 397 for (i = 0, wr = 0; i < 8; i++) {
398 398 wr <<= 8;
399 399 wr |= r[i];
400 400 }
401 401
402 402 if (wl > wr) {
403 403 return (1);
404 404 }
405 405
406 406 return (0);
407 407 }
408 408
409 409 void
410 410 fct_do_flogi(fct_i_local_port_t *iport)
411 411 {
412 412 fct_flogi_xchg_t fx;
413 413 fct_status_t ret;
414 414 int force_link_down = 0;
415 415 int do_retry = 0;
416 416
417 417 DTRACE_FC_1(fabric__login__start, fct_i_local_port_t, iport);
418 418
419 419 bzero(&fx, sizeof (fx));
420 420 fx.fx_op = ELS_OP_FLOGI;
421 421 if (iport->iport_login_retry == 0) {
422 422 fx.fx_sec_timeout = 2;
423 423 } else {
424 424 fx.fx_sec_timeout = 5;
425 425 }
426 426 if (iport->iport_link_info.port_topology & PORT_TOPOLOGY_PRIVATE_LOOP) {
427 427 fx.fx_sid = iport->iport_link_info.portid & 0xFF;
428 428 }
429 429 fx.fx_did = 0xFFFFFE;
430 430 bcopy(iport->iport_port->port_nwwn, fx.fx_nwwn, 8);
431 431 bcopy(iport->iport_port->port_pwwn, fx.fx_pwwn, 8);
432 432 mutex_exit(&iport->iport_worker_lock);
433 433 ret = iport->iport_port->port_flogi_xchg(iport->iport_port, &fx);
434 434 mutex_enter(&iport->iport_worker_lock);
435 435 if (IPORT_FLOGI_DONE(iport)) {
436 436 /* The unsolicited path finished it. */
437 437 goto done;
438 438 }
439 439 if (ret == FCT_NOT_FOUND) {
440 440 if (iport->iport_link_info.port_topology &
441 441 PORT_TOPOLOGY_PRIVATE_LOOP) {
442 442 /* This is a private loop. There is no switch. */
443 443 iport->iport_link_info.port_no_fct_flogi = 1;
444 444 goto done;
445 445 }
446 446 /*
447 447 * This is really an error. This means we cannot init the
448 448 * link. Lets force the link to go down.
449 449 */
450 450 force_link_down = 1;
451 451 } else if ((ret == FCT_SUCCESS) && (fx.fx_op == ELS_OP_LSRJT)) {
452 452 if ((fx.fx_rjt_reason == 5) || (fx.fx_rjt_reason == 0xe) ||
453 453 ((fx.fx_rjt_reason == 9) && (fx.fx_rjt_expl == 0x29))) {
454 454 do_retry = 1;
455 455 } else {
456 456 force_link_down = 1;
457 457 }
458 458 } else if (ret == STMF_TIMEOUT) {
459 459 do_retry = 1;
460 460 } else if (ret != FCT_SUCCESS) {
461 461 force_link_down = 1;
462 462 }
463 463
464 464 if (do_retry) {
465 465 iport->iport_login_retry++;
466 466 if (iport->iport_login_retry >= 5)
467 467 force_link_down = 1;
468 468 goto done;
469 469 }
470 470
471 471 if (force_link_down) {
472 472 stmf_trace(iport->iport_alias, "iport-%p: flogi xchg failed. "
473 473 "Forcing link down, ret=%llx login_retry=%d ret_op=%d "
474 474 "reason=%d expl=%d", iport, ret, iport->iport_login_retry,
475 475 fx.fx_op, fx.fx_rjt_reason, fx.fx_rjt_expl);
476 476 mutex_exit(&iport->iport_worker_lock);
477 477 fct_handle_event(iport->iport_port, FCT_EVENT_LINK_DOWN, 0, 0);
478 478 mutex_enter(&iport->iport_worker_lock);
479 479 goto done;
480 480 }
481 481
482 482 /* FLOGI succeeded. Update local port state */
483 483 ASSERT(fx.fx_op == ELS_OP_ACC);
484 484 bcopy(fx.fx_nwwn, iport->iport_link_info.port_rnwwn, 8);
485 485 bcopy(fx.fx_pwwn, iport->iport_link_info.port_rpwwn, 8);
486 486 if (fx.fx_fport) {
487 487 iport->iport_link_info.port_topology |=
488 488 PORT_TOPOLOGY_FABRIC_BIT;
489 489 iport->iport_link_info.portid = fx.fx_did;
490 490 }
491 491 iport->iport_link_info.port_fct_flogi_done = 1;
492 492
493 493 done:
494 494 DTRACE_FC_1(fabric__login__end,
495 495 fct_i_local_port_t, iport);
496 496 }
497 497
498 498 /*
499 499 * Called by FCAs to handle unsolicited FLOGIs.
500 500 */
501 501 fct_status_t
502 502 fct_handle_rcvd_flogi(fct_local_port_t *port, fct_flogi_xchg_t *fx)
503 503 {
504 504 fct_i_local_port_t *iport;
505 505 uint32_t t;
506 506
507 507 iport = (fct_i_local_port_t *)port->port_fct_private;
508 508 if ((iport->iport_flags & IPORT_ALLOW_UNSOL_FLOGI) == 0) {
509 509 return (FCT_FAILURE);
510 510 }
511 511
512 512 mutex_enter(&iport->iport_worker_lock);
513 513 if (((iport->iport_flags & IPORT_ALLOW_UNSOL_FLOGI) == 0) ||
514 514 (iport->iport_link_state != PORT_STATE_LINK_INIT_START) ||
515 515 ((iport->iport_li_state & LI_STATE_MASK) > LI_STATE_N2N_PLOGI)) {
516 516 mutex_exit(&iport->iport_worker_lock);
517 517 return (FCT_FAILURE);
518 518 }
519 519
520 520 if (iport->iport_link_info.port_fct_flogi_done == 0) {
521 521 iport->iport_link_info.port_fct_flogi_done = 1;
522 522 bcopy(fx->fx_pwwn, iport->iport_link_info.port_rpwwn, 8);
523 523 bcopy(fx->fx_nwwn, iport->iport_link_info.port_rnwwn, 8);
524 524 }
525 525
526 526 fx->fx_op = ELS_OP_ACC;
527 527 t = fx->fx_sid;
528 528 fx->fx_sid = fx->fx_did;
529 529 fx->fx_did = t;
530 530 bcopy(iport->iport_port->port_pwwn, fx->fx_pwwn, 8);
531 531 bcopy(iport->iport_port->port_nwwn, fx->fx_nwwn, 8);
532 532 mutex_exit(&iport->iport_worker_lock);
533 533
534 534 return (FCT_SUCCESS);
535 535 }
536 536
537 537 /*
538 538 * iport_li_state can only be changed here and local_event
539 539 */
540 540 disc_action_t
541 541 fct_process_link_init(fct_i_local_port_t *iport)
542 542 {
543 543 fct_cmd_t *cmd = NULL;
544 544 char *pname = NULL;
545 545 uint8_t elsop = 0;
546 546 uint16_t ctop = 0;
547 547 uint32_t wkdid = 0;
548 548 int implicit = 0;
549 549 int force_login = 0;
550 550 disc_action_t ret = DISC_ACTION_RESCAN;
551 551 fct_link_info_t *li = &iport->iport_link_info;
552 552 char topo[24], speed[4];
553 553
554 554 ASSERT(MUTEX_HELD(&iport->iport_worker_lock));
555 555
556 556 check_state_again:
557 557 switch (iport->iport_li_state & LI_STATE_MASK) {
558 558 case LI_STATE_DO_FLOGI:
559 559 /* Is FLOGI even needed or already done ? */
560 560 if ((iport->iport_link_info.port_no_fct_flogi) ||
561 561 (IPORT_FLOGI_DONE(iport))) {
562 562 iport->iport_li_state++;
563 563 goto check_state_again;
564 564 }
565 565 fct_do_flogi(iport);
566 566 break;
567 567
568 568 case LI_STATE_FINI_TOPOLOGY:
569 569 fct_li_to_txt(li, topo, speed);
570 570 cmn_err(CE_NOTE, "%s LINK UP, portid %x, topology %s,"
571 571 "speed %s", iport->iport_alias, li->portid,
572 572 topo, speed);
573 573 if (li->port_topology !=
574 574 iport->iport_link_old_topology) {
575 575 if (iport->iport_nrps) {
576 576 /*
577 577 * rehash it if change from fabric to
578 578 * none fabric, vice versa
579 579 */
580 580 if ((li->port_topology ^
581 581 iport->iport_link_old_topology) &
582 582 PORT_TOPOLOGY_FABRIC_BIT) {
583 583 mutex_exit(&iport->iport_worker_lock);
584 584 fct_rehash(iport);
585 585 mutex_enter(&iport->iport_worker_lock);
586 586 }
587 587 }
588 588 iport->iport_link_old_topology = li->port_topology;
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589 589 }
590 590 /* Skip next level if topo is not N2N */
591 591 if (li->port_topology != PORT_TOPOLOGY_PT_TO_PT) {
592 592 iport->iport_li_state += 2;
593 593 atomic_and_32(&iport->iport_flags,
594 594 ~IPORT_ALLOW_UNSOL_FLOGI);
595 595 } else {
596 596 iport->iport_li_state++;
597 597 iport->iport_login_retry = 0;
598 598 iport->iport_li_cmd_timeout = ddi_get_lbolt() +
599 - drv_usectohz(25 * 1000000);
599 + drv_sectohz(25);
600 600 }
601 601 goto check_state_again;
602 602
603 603 case LI_STATE_N2N_PLOGI:
604 604 ASSERT(IPORT_FLOGI_DONE(iport));
605 605 ASSERT(iport->iport_link_info.port_topology ==
606 606 PORT_TOPOLOGY_PT_TO_PT);
607 607 if (iport->iport_li_state & LI_STATE_FLAG_CMD_RETCHECK) {
608 608 iport->iport_li_state &= ~LI_STATE_FLAG_CMD_RETCHECK;
609 609 if (iport->iport_li_comp_status != FCT_SUCCESS) {
610 610 iport->iport_login_retry++;
611 611 if (iport->iport_login_retry >= 3) {
612 612 stmf_trace(iport->iport_alias, "Failing"
613 613 " to PLOGI to remote port in N2N "
614 614 " ret=%llx, forcing link down",
615 615 iport->iport_li_comp_status);
616 616 mutex_exit(&iport->iport_worker_lock);
617 617 fct_handle_event(iport->iport_port,
618 618 FCT_EVENT_LINK_DOWN, 0, 0);
619 619 mutex_enter(&iport->iport_worker_lock);
620 620 }
621 621 }
622 622 }
623 623 /* Find out if we need to do PLOGI at all */
624 624 if (iport->iport_nrps_login) {
625 625 iport->iport_li_state++;
626 626 atomic_and_32(&iport->iport_flags,
627 627 ~IPORT_ALLOW_UNSOL_FLOGI);
628 628 goto check_state_again;
629 629 }
630 630 if ((ddi_get_lbolt() >= iport->iport_li_cmd_timeout) &&
631 631 (!fct_lport_has_bigger_wwn(iport))) {
632 632 /* Cant wait forever */
633 633 stmf_trace(iport->iport_alias, "N2N: Remote port is "
634 634 "not logging in, forcing from our side");
635 635 force_login = 1;
636 636 } else {
637 637 force_login = 0;
638 638 }
639 639 if (force_login || fct_lport_has_bigger_wwn(iport)) {
640 640 elsop = ELS_OP_PLOGI;
641 641 wkdid = 1;
642 642 iport->iport_link_info.portid = 0xEF;
643 643 implicit = 0;
644 644 iport->iport_li_state |= LI_STATE_FLAG_CMD_RETCHECK;
645 645 } else {
646 646 ret = DISC_ACTION_DELAY_RESCAN;
647 647 }
648 648 break;
649 649
650 650 case LI_STATE_DO_FCLOGIN:
651 651 if (iport->iport_li_state & LI_STATE_FLAG_CMD_RETCHECK) {
652 652 iport->iport_li_state &= ~LI_STATE_FLAG_CMD_RETCHECK;
653 653 if (iport->iport_li_comp_status != FCT_SUCCESS) {
654 654 /*
655 655 * Fabric controller login failed. Just skip all
656 656 * the fabric controller related cmds.
657 657 */
658 658 iport->iport_li_state = LI_STATE_DO_SCR + 1;
659 659 } else {
660 660 /*
661 661 * Good. Now lets go to next state
662 662 */
663 663 iport->iport_li_state++;
664 664 }
665 665 goto check_state_again;
666 666 }
667 667 if (!IPORT_IN_NS_TOPO(iport)) {
668 668 iport->iport_li_state = LI_STATE_DO_SCR + 1;
669 669 goto check_state_again;
670 670 }
671 671
672 672 elsop = ELS_OP_PLOGI;
673 673 wkdid = FS_FABRIC_CONTROLLER;
674 674 implicit = 1;
675 675
676 676 /*
677 677 * We want to come back in the same state and check its ret
678 678 * We can't modify the state here
679 679 */
680 680 iport->iport_li_state |= LI_STATE_FLAG_CMD_RETCHECK;
681 681 break;
682 682
683 683 case LI_STATE_DO_SCR:
684 684 elsop = ELS_OP_SCR;
685 685 wkdid = FS_FABRIC_CONTROLLER;
686 686
687 687 /*
688 688 * We dont care about success of this state. Just go to
689 689 * next state upon completion.
690 690 */
691 691 iport->iport_li_state++;
692 692 break;
693 693
694 694 case LI_STATE_DO_NSLOGIN:
695 695 if (iport->iport_li_state & LI_STATE_FLAG_CMD_RETCHECK) {
696 696 iport->iport_li_state &= ~LI_STATE_FLAG_CMD_RETCHECK;
697 697 if (iport->iport_li_comp_status != FCT_SUCCESS) {
698 698 iport->iport_li_state = LI_STATE_DO_RSNN + 1;
699 699 } else {
700 700 iport->iport_li_state++;
701 701 }
702 702 goto check_state_again;
703 703 }
704 704
705 705 if (!IPORT_IN_NS_TOPO(iport)) {
706 706 iport->iport_li_state = LI_STATE_DO_RSNN + 1;
707 707 goto check_state_again;
708 708 }
709 709
710 710 elsop = ELS_OP_PLOGI;
711 711 wkdid = FS_NAME_SERVER;
712 712 iport->iport_li_state |= LI_STATE_FLAG_CMD_RETCHECK;
713 713 break;
714 714
715 715 /*
716 716 * CT state
717 717 */
718 718 case LI_STATE_DO_RNN:
719 719 ctop = NS_RNN_ID;
720 720 iport->iport_li_state++;
721 721 break;
722 722
723 723 case LI_STATE_DO_RCS:
724 724 ctop = NS_RCS_ID;
725 725 iport->iport_li_state++;
726 726 break;
727 727
728 728 case LI_STATE_DO_RFT:
729 729 ctop = NS_RFT_ID;
730 730 iport->iport_li_state++;
731 731 break;
732 732
733 733 case LI_STATE_DO_RSPN:
734 734 /*
735 735 * Check if we need skip the state
736 736 */
737 737 pname = iport->iport_port->port_sym_port_name !=
738 738 NULL ? iport->iport_port->port_sym_port_name : NULL;
739 739 if (pname == NULL) {
740 740 pname = iport->iport_port->port_default_alias !=
741 741 NULL ? iport->iport_port->port_default_alias : NULL;
742 742 iport->iport_port->port_sym_port_name = pname;
743 743 }
744 744
745 745 if (pname == NULL) {
746 746 iport->iport_li_state++;
747 747 goto check_state_again;
748 748 }
749 749
750 750 ctop = NS_RSPN_ID;
751 751 iport->iport_li_state++;
752 752 break;
753 753
754 754 case LI_STATE_DO_RSNN:
755 755 ctop = NS_RSNN_NN;
756 756 iport->iport_li_state++;
757 757 break;
758 758
759 759 case LI_STATE_MAX:
760 760 mutex_exit(&iport->iport_worker_lock);
761 761
762 762 fct_handle_event(iport->iport_port,
763 763 FCT_I_EVENT_LINK_INIT_DONE, 0, 0);
764 764
765 765 mutex_enter(&iport->iport_worker_lock);
766 766 break;
767 767
768 768 default:
769 769 ASSERT(0);
770 770 }
771 771
772 772 if (elsop != 0) {
773 773 cmd = fct_create_solels(iport->iport_port, NULL, implicit,
774 774 elsop, wkdid, fct_link_init_cb);
775 775 } else if (ctop != 0) {
776 776 cmd = fct_create_solct(iport->iport_port, NULL, ctop,
777 777 fct_link_init_cb);
778 778 }
779 779
780 780 if (cmd) {
781 781 iport->iport_li_state |= LI_STATE_FLAG_CMD_WAITING;
782 782 mutex_exit(&iport->iport_worker_lock);
783 783
784 784 fct_post_to_solcmd_queue(iport->iport_port, cmd);
785 785
786 786 mutex_enter(&iport->iport_worker_lock);
787 787 }
788 788
789 789 return (ret);
790 790 }
791 791
792 792 /*
793 793 * Handles both solicited and unsolicited elses. Can be called inside
794 794 * interrupt context.
795 795 */
796 796 void
797 797 fct_handle_els(fct_cmd_t *cmd)
798 798 {
799 799 fct_local_port_t *port = cmd->cmd_port;
800 800 fct_i_local_port_t *iport =
801 801 (fct_i_local_port_t *)port->port_fct_private;
802 802 fct_i_cmd_t *icmd = (fct_i_cmd_t *)cmd->cmd_fct_private;
803 803 fct_els_t *els = (fct_els_t *)cmd->cmd_specific;
804 804 fct_remote_port_t *rp;
805 805 fct_i_remote_port_t *irp;
806 806 uint16_t cmd_slot;
807 807 uint8_t op;
808 808
809 809 op = els->els_req_payload[0];
810 810 icmd->icmd_start_time = ddi_get_lbolt();
811 811 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
812 812 icmd->icmd_flags |= ICMD_KNOWN_TO_FCA;
813 813 }
814 814 stmf_trace(iport->iport_alias, "Posting %ssol ELS %x (%s) rp_id=%x"
815 815 " lp_id=%x", (cmd->cmd_type == FCT_CMD_RCVD_ELS) ? "un" : "",
816 816 op, FCT_ELS_NAME(op), cmd->cmd_rportid,
817 817 cmd->cmd_lportid);
818 818
819 819 rw_enter(&iport->iport_lock, RW_READER);
820 820 start_els_posting:;
821 821 /* Make sure local port is sane */
822 822 if ((iport->iport_link_state & S_LINK_ONLINE) == 0) {
823 823 rw_exit(&iport->iport_lock);
824 824 stmf_trace(iport->iport_alias, "ELS %x not posted becasue"
825 825 "port state was %x", els->els_req_payload[0],
826 826 iport->iport_link_state);
827 827 fct_queue_cmd_for_termination(cmd, FCT_LOCAL_PORT_OFFLINE);
828 828 return;
829 829 }
830 830
831 831 /* Weed out any bad initiators in case of N2N topology */
832 832 if ((cmd->cmd_type == FCT_CMD_RCVD_ELS) &&
833 833 (els->els_req_payload[0] == ELS_OP_PLOGI) &&
834 834 (iport->iport_link_state == PORT_STATE_LINK_INIT_START) &&
835 835 (iport->iport_link_info.port_topology == PORT_TOPOLOGY_PT_TO_PT)) {
836 836 int state;
837 837 int killit = 0;
838 838
839 839 mutex_enter(&iport->iport_worker_lock);
840 840 state = iport->iport_li_state & LI_STATE_MASK;
841 841 /*
842 842 * We dont allow remote port to plogi in N2N if we have not yet
843 843 * resolved the topology.
844 844 */
845 845 if (state <= LI_STATE_FINI_TOPOLOGY) {
846 846 killit = 1;
847 847 stmf_trace(iport->iport_alias, "port %x is trying to "
848 848 "PLOGI in N2N topology, While we have not resolved"
849 849 " the topology. Dropping...", cmd->cmd_rportid);
850 850 } else if (state <= LI_STATE_N2N_PLOGI) {
851 851 if (fct_lport_has_bigger_wwn(iport)) {
852 852 killit = 1;
853 853 stmf_trace(iport->iport_alias, "port %x is "
854 854 "trying to PLOGI in N2N topology, even "
855 855 "though it has smaller PWWN",
856 856 cmd->cmd_rportid);
857 857 } else {
858 858 /*
859 859 * Remote port is assigning us a PORTID as
860 860 * a part of PLOGI.
861 861 */
862 862 iport->iport_link_info.portid =
863 863 cmd->cmd_lportid;
864 864 }
865 865 }
866 866 mutex_exit(&iport->iport_worker_lock);
867 867 if (killit) {
868 868 rw_exit(&iport->iport_lock);
869 869 fct_queue_cmd_for_termination(cmd,
870 870 FCT_LOCAL_PORT_OFFLINE);
871 871 return;
872 872 }
873 873 }
874 874
875 875 /*
876 876 * For all unsolicited ELSes that are not FLOGIs, our portid
877 877 * has been established by now. Sometimes port IDs change due to
878 878 * link resets but remote ports may still send ELSes using the
879 879 * old IDs. Kill those right here.
880 880 */
881 881 if ((cmd->cmd_type == FCT_CMD_RCVD_ELS) &&
882 882 (els->els_req_payload[0] != ELS_OP_FLOGI)) {
883 883 if (cmd->cmd_lportid != iport->iport_link_info.portid) {
884 884 rw_exit(&iport->iport_lock);
885 885 stmf_trace(iport->iport_alias, "Rcvd %s with "
886 886 "wrong lportid %x, expecting %x. Killing ELS.",
887 887 FCT_ELS_NAME(op), cmd->cmd_lportid,
888 888 iport->iport_link_info.portid);
889 889 fct_queue_cmd_for_termination(cmd,
890 890 FCT_NOT_FOUND);
891 891 return;
892 892 }
893 893 }
894 894
895 895 /*
896 896 * We always lookup by portid. port handles are too
897 897 * unreliable at this stage.
898 898 */
899 899 irp = fct_portid_to_portptr(iport, cmd->cmd_rportid);
900 900 if (els->els_req_payload[0] == ELS_OP_PLOGI) {
901 901 if (irp == NULL) {
902 902 /* drop the lock while we do allocations */
903 903 rw_exit(&iport->iport_lock);
904 904 rp = fct_alloc(FCT_STRUCT_REMOTE_PORT,
905 905 port->port_fca_rp_private_size, 0);
906 906 if (rp == NULL) {
907 907 fct_queue_cmd_for_termination(cmd,
908 908 FCT_ALLOC_FAILURE);
909 909 return;
910 910 }
911 911 irp = (fct_i_remote_port_t *)rp->rp_fct_private;
912 912 rw_init(&irp->irp_lock, 0, RW_DRIVER, 0);
913 913 irp->irp_rp = rp;
914 914 irp->irp_portid = cmd->cmd_rportid;
915 915 rp->rp_port = port;
916 916 rp->rp_id = cmd->cmd_rportid;
917 917 rp->rp_handle = FCT_HANDLE_NONE;
918 918 /*
919 919 * Grab port lock as writer since we are going
920 920 * to modify the local port struct.
921 921 */
922 922 rw_enter(&iport->iport_lock, RW_WRITER);
923 923 /* Make sure nobody created the struct except us */
924 924 if (fct_portid_to_portptr(iport, cmd->cmd_rportid)) {
925 925 /* Oh well, free it */
926 926 fct_free(rp);
927 927 } else {
928 928 fct_queue_rp(iport, irp);
929 929 }
930 930 rw_downgrade(&iport->iport_lock);
931 931 /* Start over becasue we dropped the lock */
932 932 goto start_els_posting;
933 933 }
934 934
935 935 /* A PLOGI is by default a logout of previous session */
936 936 irp->irp_deregister_timer = ddi_get_lbolt() +
937 937 drv_usectohz(USEC_DEREG_RP_TIMEOUT);
938 938 irp->irp_dereg_count = 0;
939 939 fct_post_to_discovery_queue(iport, irp, NULL);
940 940
941 941 /* A PLOGI also invalidates any RSCNs related to this rp */
942 942 atomic_inc_32(&irp->irp_rscn_counter);
943 943 } else {
944 944 /*
945 945 * For everything else, we have (or be able to lookup) a
946 946 * valid port pointer.
947 947 */
948 948 if (irp == NULL) {
949 949 rw_exit(&iport->iport_lock);
950 950 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
951 951 /* XXX Throw a logout to the initiator */
952 952 stmf_trace(iport->iport_alias, "ELS %x "
953 953 "received from %x without a session",
954 954 els->els_req_payload[0], cmd->cmd_rportid);
955 955 } else {
956 956 stmf_trace(iport->iport_alias, "Sending ELS %x "
957 957 "to %x without a session",
958 958 els->els_req_payload[0], cmd->cmd_rportid);
959 959 }
960 960 fct_queue_cmd_for_termination(cmd, FCT_NOT_LOGGED_IN);
961 961 return;
962 962 }
963 963 }
964 964 cmd->cmd_rp = rp = irp->irp_rp;
965 965
966 966 /*
967 967 * Lets get a slot for this els
968 968 */
969 969 if (!(icmd->icmd_flags & ICMD_IMPLICIT)) {
970 970 cmd_slot = fct_alloc_cmd_slot(iport, cmd);
971 971 if (cmd_slot == FCT_SLOT_EOL) {
972 972 /* This should not have happened */
973 973 rw_exit(&iport->iport_lock);
974 974 stmf_trace(iport->iport_alias,
975 975 "ran out of xchg resources");
976 976 fct_queue_cmd_for_termination(cmd,
977 977 FCT_NO_XCHG_RESOURCE);
978 978 return;
979 979 }
980 980 } else {
981 981 /*
982 982 * Tell the framework that fct_cmd_free() can decrement the
983 983 * irp_nonfcp_xchg_count variable.
984 984 */
985 985 atomic_or_32(&icmd->icmd_flags, ICMD_IMPLICIT_CMD_HAS_RESOURCE);
986 986 }
987 987 atomic_inc_16(&irp->irp_nonfcp_xchg_count);
988 988
989 989 /*
990 990 * Grab the remote port lock while we modify the port state.
991 991 * we should not drop the fca port lock (as a reader) until we
992 992 * modify the remote port state.
993 993 */
994 994 rw_enter(&irp->irp_lock, RW_WRITER);
995 995 if ((op == ELS_OP_PLOGI) || (op == ELS_OP_PRLI) ||
996 996 (op == ELS_OP_LOGO) || (op == ELS_OP_PRLO) ||
997 997 (op == ELS_OP_TPRLO)) {
998 998 uint32_t rf = IRP_PRLI_DONE;
999 999 if ((op == ELS_OP_PLOGI) || (op == ELS_OP_LOGO)) {
1000 1000 rf |= IRP_PLOGI_DONE;
1001 1001 if (irp->irp_flags & IRP_PLOGI_DONE)
1002 1002 atomic_dec_32(&iport->iport_nrps_login);
1003 1003 }
1004 1004 atomic_inc_16(&irp->irp_sa_elses_count);
1005 1005 atomic_and_32(&irp->irp_flags, ~rf);
1006 1006 atomic_or_32(&icmd->icmd_flags, ICMD_SESSION_AFFECTING);
1007 1007 } else {
1008 1008 atomic_inc_16(&irp->irp_nsa_elses_count);
1009 1009 }
1010 1010
1011 1011 fct_post_to_discovery_queue(iport, irp, icmd);
1012 1012
1013 1013 rw_exit(&irp->irp_lock);
1014 1014 rw_exit(&iport->iport_lock);
1015 1015 }
1016 1016
1017 1017 /*
1018 1018 * Cleanup I/Os for a rport. ttc is a bit Mask of cmd types to clean.
1019 1019 * No locks held.
1020 1020 */
1021 1021 int
1022 1022 fct_trigger_rport_cleanup(fct_i_remote_port_t *irp, int ttc)
1023 1023 {
1024 1024 fct_remote_port_t *rp = irp->irp_rp;
1025 1025 fct_local_port_t *port = rp->rp_port;
1026 1026 fct_i_local_port_t *iport =
1027 1027 (fct_i_local_port_t *)port->port_fct_private;
1028 1028 fct_cmd_t *cmd;
1029 1029 fct_i_cmd_t *icmd;
1030 1030 int i;
1031 1031 int ret;
1032 1032 uint16_t total, cleaned, skipped, unhandled;
1033 1033
1034 1034 rw_enter(&iport->iport_lock, RW_WRITER);
1035 1035 rw_enter(&irp->irp_lock, RW_WRITER);
1036 1036 mutex_enter(&iport->iport_worker_lock);
1037 1037 total = port->port_max_xchges - iport->iport_nslots_free;
1038 1038 cleaned = skipped = unhandled = 0;
1039 1039
1040 1040 for (i = 0; i < port->port_max_xchges; i++) {
1041 1041 if (iport->iport_cmd_slots[i].slot_cmd == NULL)
1042 1042 continue;
1043 1043 icmd = iport->iport_cmd_slots[i].slot_cmd;
1044 1044 if (icmd->icmd_flags & ICMD_IN_TRANSITION) {
1045 1045 unhandled++;
1046 1046 continue;
1047 1047 }
1048 1048
1049 1049 if (icmd->icmd_flags & ICMD_CMD_COMPLETE) {
1050 1050 unhandled++;
1051 1051 continue;
1052 1052 }
1053 1053
1054 1054 cmd = icmd->icmd_cmd;
1055 1055 if (cmd->cmd_rp != rp) {
1056 1056 skipped++;
1057 1057 continue;
1058 1058 }
1059 1059 if (cmd->cmd_type & ttc) {
1060 1060 if (cmd->cmd_type == FCT_CMD_FCP_XCHG)
1061 1061 fct_queue_scsi_task_for_termination(cmd,
1062 1062 FCT_ABORTED);
1063 1063 else
1064 1064 fct_q_for_termination_lock_held(iport, icmd,
1065 1065 FCT_ABORTED);
1066 1066 cleaned++;
1067 1067 } else {
1068 1068 skipped++;
1069 1069 }
1070 1070 }
1071 1071 if (((cleaned + skipped) == total) && (unhandled == 0)) {
1072 1072 ret = 1;
1073 1073 } else {
1074 1074 /*
1075 1075 * XXX: handle this situation.
1076 1076 */
1077 1077 stmf_trace(iport->iport_alias, "Clean up trouble for irp"
1078 1078 " %p, c/s/u/t = %d/%d/%d/%d", irp, cleaned, skipped,
1079 1079 unhandled, total);
1080 1080 ret = 0;
1081 1081 }
1082 1082 if ((cleaned) && IS_WORKER_SLEEPING(iport))
1083 1083 cv_signal(&iport->iport_worker_cv);
1084 1084 mutex_exit(&iport->iport_worker_lock);
1085 1085 rw_exit(&irp->irp_lock);
1086 1086 rw_exit(&iport->iport_lock);
1087 1087 return (ret);
1088 1088 }
1089 1089
1090 1090 void
1091 1091 fct_dequeue_els(fct_i_remote_port_t *irp)
1092 1092 {
1093 1093 fct_i_cmd_t *icmd;
1094 1094
1095 1095 rw_enter(&irp->irp_lock, RW_WRITER);
1096 1096 icmd = irp->irp_els_list;
1097 1097 irp->irp_els_list = icmd->icmd_next;
1098 1098 atomic_and_32(&icmd->icmd_flags, ~ICMD_IN_IRP_QUEUE);
1099 1099 rw_exit(&irp->irp_lock);
1100 1100 }
1101 1101
1102 1102 fct_status_t
1103 1103 fct_register_remote_port(fct_local_port_t *port, fct_remote_port_t *rp,
1104 1104 fct_cmd_t *cmd)
1105 1105 {
1106 1106 fct_status_t ret;
1107 1107 fct_i_local_port_t *iport;
1108 1108 fct_i_remote_port_t *irp;
1109 1109 int i;
1110 1110 char info[FCT_INFO_LEN];
1111 1111
1112 1112 iport = (fct_i_local_port_t *)port->port_fct_private;
1113 1113 irp = (fct_i_remote_port_t *)rp->rp_fct_private;
1114 1114
1115 1115 if ((ret = port->port_register_remote_port(port, rp, cmd)) !=
1116 1116 FCT_SUCCESS)
1117 1117 return (ret);
1118 1118
1119 1119 rw_enter(&iport->iport_lock, RW_WRITER);
1120 1120 rw_enter(&irp->irp_lock, RW_WRITER);
1121 1121 if (rp->rp_handle != FCT_HANDLE_NONE) {
1122 1122 if (rp->rp_handle >= port->port_max_logins) {
1123 1123 (void) snprintf(info, sizeof (info),
1124 1124 "fct_register_remote_port: FCA "
1125 1125 "returned a handle (%d) for portid %x which is "
1126 1126 "out of range (max logins = %d)", rp->rp_handle,
1127 1127 rp->rp_id, port->port_max_logins);
1128 1128 goto hba_fatal_err;
1129 1129 }
1130 1130 if ((iport->iport_rp_slots[rp->rp_handle] != NULL) &&
1131 1131 (iport->iport_rp_slots[rp->rp_handle] != irp)) {
1132 1132 fct_i_remote_port_t *t_irp =
1133 1133 iport->iport_rp_slots[rp->rp_handle];
1134 1134 (void) snprintf(info, sizeof (info),
1135 1135 "fct_register_remote_port: "
1136 1136 "FCA returned a handle %d for portid %x "
1137 1137 "which was already in use for a different "
1138 1138 "portid (%x)", rp->rp_handle, rp->rp_id,
1139 1139 t_irp->irp_rp->rp_id);
1140 1140 goto hba_fatal_err;
1141 1141 }
1142 1142 } else {
1143 1143 /* Pick a handle for this port */
1144 1144 for (i = 0; i < port->port_max_logins; i++) {
1145 1145 if (iport->iport_rp_slots[i] == NULL) {
1146 1146 break;
1147 1147 }
1148 1148 }
1149 1149 if (i == port->port_max_logins) {
1150 1150 /* This is really pushing it. */
1151 1151 (void) snprintf(info, sizeof (info),
1152 1152 "fct_register_remote_port "
1153 1153 "Cannot register portid %x because all the "
1154 1154 "handles are used up", rp->rp_id);
1155 1155 goto hba_fatal_err;
1156 1156 }
1157 1157 rp->rp_handle = i;
1158 1158 }
1159 1159 /* By this time rport_handle is valid */
1160 1160 if ((irp->irp_flags & IRP_HANDLE_OPENED) == 0) {
1161 1161 iport->iport_rp_slots[rp->rp_handle] = irp;
1162 1162 atomic_or_32(&irp->irp_flags, IRP_HANDLE_OPENED);
1163 1163 }
1164 1164 atomic_inc_64(&iport->iport_last_change);
1165 1165 fct_log_remote_port_event(port, ESC_SUNFC_TARGET_ADD,
1166 1166 rp->rp_pwwn, rp->rp_id);
1167 1167
1168 1168 register_rp_done:;
1169 1169 rw_exit(&irp->irp_lock);
1170 1170 rw_exit(&iport->iport_lock);
1171 1171 return (FCT_SUCCESS);
1172 1172
1173 1173 hba_fatal_err:;
1174 1174 rw_exit(&irp->irp_lock);
1175 1175 rw_exit(&iport->iport_lock);
1176 1176 /*
1177 1177 * XXX Throw HBA fatal error event
1178 1178 */
1179 1179 (void) fct_port_shutdown(iport->iport_port,
1180 1180 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
1181 1181 return (FCT_FAILURE);
1182 1182 }
1183 1183
1184 1184 fct_status_t
1185 1185 fct_deregister_remote_port(fct_local_port_t *port, fct_remote_port_t *rp)
1186 1186 {
1187 1187 fct_status_t ret = FCT_SUCCESS;
1188 1188 fct_i_local_port_t *iport = PORT_TO_IPORT(port);
1189 1189 fct_i_remote_port_t *irp = RP_TO_IRP(rp);
1190 1190
1191 1191 if (irp->irp_snn) {
1192 1192 kmem_free(irp->irp_snn, strlen(irp->irp_snn) + 1);
1193 1193 irp->irp_snn = NULL;
1194 1194 }
1195 1195 if (irp->irp_spn) {
1196 1196 kmem_free(irp->irp_spn, strlen(irp->irp_spn) + 1);
1197 1197 irp->irp_spn = NULL;
1198 1198 }
1199 1199
1200 1200 if ((ret = port->port_deregister_remote_port(port, rp)) !=
1201 1201 FCT_SUCCESS) {
1202 1202 return (ret);
1203 1203 }
1204 1204
1205 1205 if (irp->irp_flags & IRP_HANDLE_OPENED) {
1206 1206 atomic_and_32(&irp->irp_flags, ~IRP_HANDLE_OPENED);
1207 1207 iport->iport_rp_slots[rp->rp_handle] = NULL;
1208 1208 }
1209 1209 atomic_inc_64(&iport->iport_last_change);
1210 1210 fct_log_remote_port_event(port, ESC_SUNFC_TARGET_REMOVE,
1211 1211 rp->rp_pwwn, rp->rp_id);
1212 1212
1213 1213 return (FCT_SUCCESS);
1214 1214 }
1215 1215
1216 1216 fct_status_t
1217 1217 fct_send_accrjt(fct_cmd_t *cmd, uint8_t accrjt, uint8_t reason, uint8_t expl)
1218 1218 {
1219 1219 fct_local_port_t *port = (fct_local_port_t *)cmd->cmd_port;
1220 1220 fct_els_t *els = (fct_els_t *)cmd->cmd_specific;
1221 1221
1222 1222 els->els_resp_size = els->els_resp_alloc_size = 8;
1223 1223 els->els_resp_payload = (uint8_t *)kmem_zalloc(8, KM_SLEEP);
1224 1224 els->els_resp_payload[0] = accrjt;
1225 1225 if (accrjt == 1) {
1226 1226 els->els_resp_payload[5] = reason;
1227 1227 els->els_resp_payload[6] = expl;
1228 1228 } else {
1229 1229 els->els_resp_size = 4;
1230 1230 }
1231 1231
1232 1232 return (port->port_send_cmd_response(cmd, 0));
1233 1233 }
1234 1234
1235 1235
1236 1236 disc_action_t
1237 1237 fct_walk_discovery_queue(fct_i_local_port_t *iport)
1238 1238 {
1239 1239 char info[FCT_INFO_LEN];
1240 1240 fct_i_remote_port_t **pirp;
1241 1241 fct_i_remote_port_t *prev_irp = NULL;
1242 1242 disc_action_t suggested_action = DISC_ACTION_NO_WORK;
1243 1243 fct_i_remote_port_t *irp_dereg_list = NULL;
1244 1244 fct_i_remote_port_t *irp_cur_item = NULL;
1245 1245
1246 1246 for (pirp = &iport->iport_rpwe_head; *pirp != NULL; ) {
1247 1247 fct_i_remote_port_t *irp = *pirp;
1248 1248 disc_action_t ret = DISC_ACTION_NO_WORK;
1249 1249 int do_deregister = 0;
1250 1250 int irp_deregister_timer = 0;
1251 1251
1252 1252 if (irp->irp_els_list) {
1253 1253 ret |= fct_process_els(iport, irp);
1254 1254 }
1255 1255
1256 1256 irp_deregister_timer = irp->irp_deregister_timer;
1257 1257 if (irp_deregister_timer) {
1258 1258 if (ddi_get_lbolt() >= irp_deregister_timer) {
1259 1259 do_deregister = 1;
1260 1260 } else {
1261 1261 ret |= DISC_ACTION_DELAY_RESCAN;
1262 1262 }
1263 1263 }
1264 1264 suggested_action |= ret;
1265 1265
1266 1266 if (irp->irp_els_list == NULL) {
1267 1267 mutex_exit(&iport->iport_worker_lock);
1268 1268 rw_enter(&iport->iport_lock, RW_WRITER);
1269 1269 rw_enter(&irp->irp_lock, RW_WRITER);
1270 1270 mutex_enter(&iport->iport_worker_lock);
1271 1271 if (irp->irp_els_list == NULL) {
1272 1272 if (!irp_deregister_timer ||
1273 1273 (do_deregister &&
1274 1274 !irp->irp_sa_elses_count &&
1275 1275 !irp->irp_nsa_elses_count &&
1276 1276 !irp->irp_fcp_xchg_count &&
1277 1277 !irp->irp_nonfcp_xchg_count)) {
1278 1278 /* dequeue irp from discovery queue */
1279 1279 atomic_and_32(&irp->irp_flags,
1280 1280 ~IRP_IN_DISCOVERY_QUEUE);
1281 1281 *pirp = irp->irp_discovery_next;
1282 1282 if (iport->iport_rpwe_head == NULL)
1283 1283 iport->iport_rpwe_tail = NULL;
1284 1284 else if (irp == iport->iport_rpwe_tail)
1285 1285 iport->iport_rpwe_tail =
1286 1286 prev_irp;
1287 1287
1288 1288 irp->irp_discovery_next = NULL;
1289 1289 if (do_deregister) {
1290 1290 fct_deque_rp(iport, irp);
1291 1291 rw_exit(&irp->irp_lock);
1292 1292 /* queue irp for deregister */
1293 1293 irp->irp_next = NULL;
1294 1294 if (!irp_dereg_list) {
1295 1295 irp_dereg_list =
1296 1296 irp_cur_item = irp;
1297 1297 } else {
1298 1298 irp_cur_item->irp_next =
1299 1299 irp;
1300 1300 irp_cur_item = irp;
1301 1301 }
1302 1302 } else {
1303 1303 rw_exit(&irp->irp_lock);
1304 1304 }
1305 1305 rw_exit(&iport->iport_lock);
1306 1306 if ((irp = *pirp) == NULL)
1307 1307 break;
1308 1308 } else {
1309 1309 /*
1310 1310 * wait for another scan until
1311 1311 * deregister timeout
1312 1312 */
1313 1313 rw_exit(&irp->irp_lock);
1314 1314 rw_exit(&iport->iport_lock);
1315 1315 }
1316 1316 } else {
1317 1317 rw_exit(&irp->irp_lock);
1318 1318 rw_exit(&iport->iport_lock);
1319 1319 /*
1320 1320 * When we dropped the lock,
1321 1321 * something went in.
1322 1322 */
1323 1323 suggested_action |= DISC_ACTION_RESCAN;
1324 1324 }
1325 1325 }
1326 1326 pirp = &(irp->irp_discovery_next);
1327 1327 prev_irp = irp;
1328 1328 }
1329 1329 /* do deregister */
1330 1330 if (irp_dereg_list) {
1331 1331 fct_i_remote_port_t *irp_next_item;
1332 1332 /* drop the lock */
1333 1333 mutex_exit(&iport->iport_worker_lock);
1334 1334
1335 1335 for (irp_cur_item = irp_dereg_list; irp_cur_item != NULL; ) {
1336 1336 irp_next_item = irp_cur_item->irp_next;
1337 1337 if (fct_deregister_remote_port(iport->iport_port,
1338 1338 irp_cur_item->irp_rp) == FCT_SUCCESS) {
1339 1339 fct_free(irp_cur_item->irp_rp);
1340 1340 } else if (++irp_cur_item->irp_dereg_count >= 5) {
1341 1341 irp_cur_item->irp_deregister_timer = 0;
1342 1342 irp_cur_item->irp_dereg_count = 0;
1343 1343
1344 1344 /*
1345 1345 * It looks like we can't deregister it in the
1346 1346 * normal way, so we have to use extrem way
1347 1347 */
1348 1348 (void) snprintf(info, sizeof (info),
1349 1349 "fct_walk_discovery_queue: "
1350 1350 "iport-%p, can't deregister irp-%p after "
1351 1351 "trying 5 times", (void *)iport,
1352 1352 (void *)irp_cur_item);
1353 1353 (void) fct_port_shutdown(iport->iport_port,
1354 1354 STMF_RFLAG_FATAL_ERROR |
1355 1355 STMF_RFLAG_RESET, info);
1356 1356 suggested_action |= DISC_ACTION_RESCAN;
1357 1357 break;
1358 1358 } else {
1359 1359 /* grab the iport_lock */
1360 1360 rw_enter(&iport->iport_lock, RW_WRITER);
1361 1361 /* recover */
1362 1362 irp_cur_item->irp_deregister_timer =
1363 1363 ddi_get_lbolt() +
1364 1364 drv_usectohz(USEC_DEREG_RP_INTERVAL);
1365 1365 fct_post_to_discovery_queue(iport,
1366 1366 irp_cur_item, NULL);
1367 1367 fct_queue_rp(iport, irp_cur_item);
1368 1368 rw_exit(&iport->iport_lock);
1369 1369 suggested_action |= DISC_ACTION_DELAY_RESCAN;
1370 1370 }
1371 1371 irp_cur_item = irp_next_item;
1372 1372 }
1373 1373 mutex_enter(&iport->iport_worker_lock);
1374 1374 }
1375 1375 return (suggested_action);
1376 1376 }
1377 1377
1378 1378 disc_action_t
1379 1379 fct_process_plogi(fct_i_cmd_t *icmd)
1380 1380 {
1381 1381 fct_cmd_t *cmd = icmd->icmd_cmd;
1382 1382 fct_remote_port_t *rp = cmd->cmd_rp;
1383 1383 fct_local_port_t *port = cmd->cmd_port;
1384 1384 fct_i_local_port_t *iport = (fct_i_local_port_t *)
1385 1385 port->port_fct_private;
1386 1386 fct_els_t *els = (fct_els_t *)
1387 1387 cmd->cmd_specific;
1388 1388 fct_i_remote_port_t *irp = (fct_i_remote_port_t *)
1389 1389 rp->rp_fct_private;
1390 1390 uint8_t *p;
1391 1391 fct_status_t ret;
1392 1392 uint8_t cmd_type = cmd->cmd_type;
1393 1393 uint32_t icmd_flags = icmd->icmd_flags;
1394 1394 clock_t end_time;
1395 1395 char info[FCT_INFO_LEN];
1396 1396
1397 1397 DTRACE_FC_4(rport__login__start,
1398 1398 fct_cmd_t, cmd,
1399 1399 fct_local_port_t, port,
1400 1400 fct_i_remote_port_t, irp,
1401 1401 int, (cmd_type != FCT_CMD_RCVD_ELS));
1402 1402
1403 1403 /* Drain I/Os */
1404 1404 if ((irp->irp_nonfcp_xchg_count + irp->irp_fcp_xchg_count) > 1) {
1405 1405 /* Trigger cleanup if necessary */
1406 1406 if ((irp->irp_flags & IRP_SESSION_CLEANUP) == 0) {
1407 1407 stmf_trace(iport->iport_alias, "handling PLOGI rp_id"
1408 1408 " %x. Triggering cleanup", cmd->cmd_rportid);
1409 1409 /* Cleanup everything except elses */
1410 1410 if (fct_trigger_rport_cleanup(irp, ~(cmd->cmd_type))) {
1411 1411 atomic_or_32(&irp->irp_flags,
1412 1412 IRP_SESSION_CLEANUP);
1413 1413 } else {
1414 1414 /* XXX: handle this */
1415 1415 /* EMPTY */
1416 1416 }
1417 1417 }
1418 1418
1419 1419 end_time = icmd->icmd_start_time +
1420 1420 drv_usectohz(USEC_ELS_TIMEOUT);
1421 1421 if (ddi_get_lbolt() > end_time) {
1422 1422 (void) snprintf(info, sizeof (info),
1423 1423 "fct_process_plogi: unable to "
1424 1424 "clean up I/O. iport-%p, icmd-%p", (void *)iport,
1425 1425 (void *)icmd);
1426 1426 (void) fct_port_shutdown(iport->iport_port,
1427 1427 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
1428 1428
1429 1429 return (DISC_ACTION_DELAY_RESCAN);
1430 1430 }
1431 1431
1432 1432 if ((ddi_get_lbolt() & 0x7f) == 0) {
1433 1433 stmf_trace(iport->iport_alias, "handling"
1434 1434 " PLOGI rp_id %x, waiting for cmds to"
1435 1435 " drain", cmd->cmd_rportid);
1436 1436 }
1437 1437 return (DISC_ACTION_DELAY_RESCAN);
1438 1438 }
1439 1439 atomic_and_32(&irp->irp_flags, ~IRP_SESSION_CLEANUP);
1440 1440
1441 1441 /* Session can only be terminated after all the I/Os have drained */
1442 1442 if (irp->irp_flags & IRP_SCSI_SESSION_STARTED) {
1443 1443 stmf_deregister_scsi_session(iport->iport_port->port_lport,
1444 1444 irp->irp_session);
1445 1445 stmf_free(irp->irp_session);
1446 1446 irp->irp_session = NULL;
1447 1447 atomic_and_32(&irp->irp_flags, ~IRP_SCSI_SESSION_STARTED);
1448 1448 }
1449 1449
1450 1450 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
1451 1451 els->els_resp_size = els->els_req_size;
1452 1452 p = els->els_resp_payload = (uint8_t *)kmem_zalloc(
1453 1453 els->els_resp_size, KM_SLEEP);
1454 1454 els->els_resp_alloc_size = els->els_resp_size;
1455 1455 bcopy(els->els_req_payload, p, els->els_resp_size);
1456 1456 p[0] = ELS_OP_ACC;
1457 1457 bcopy(p+20, rp->rp_pwwn, 8);
1458 1458 bcopy(p+28, rp->rp_nwwn, 8);
1459 1459 bcopy(port->port_pwwn, p+20, 8);
1460 1460 bcopy(port->port_nwwn, p+28, 8);
1461 1461 fct_wwn_to_str(rp->rp_pwwn_str, rp->rp_pwwn);
1462 1462 fct_wwn_to_str(rp->rp_nwwn_str, rp->rp_nwwn);
1463 1463 fct_wwn_to_str(port->port_pwwn_str, port->port_pwwn);
1464 1464 fct_wwn_to_str(port->port_nwwn_str, port->port_nwwn);
1465 1465
1466 1466 stmf_wwn_to_devid_desc((scsi_devid_desc_t *)irp->irp_id,
1467 1467 rp->rp_pwwn, PROTOCOL_FIBRE_CHANNEL);
1468 1468 }
1469 1469
1470 1470 ret = fct_register_remote_port(port, rp, cmd);
1471 1471 fct_dequeue_els(irp);
1472 1472 if ((ret == FCT_SUCCESS) && !(icmd->icmd_flags & ICMD_IMPLICIT)) {
1473 1473 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
1474 1474 ret = port->port_send_cmd_response(cmd, 0);
1475 1475 if ((ret == FCT_SUCCESS) && IPORT_IN_NS_TOPO(iport) &&
1476 1476 !FC_WELL_KNOWN_ADDR(irp->irp_portid)) {
1477 1477 fct_cmd_t *ct_cmd = fct_create_solct(port,
1478 1478 rp, NS_GSNN_NN, fct_gsnn_cb);
1479 1479 if (ct_cmd) {
1480 1480 fct_post_to_solcmd_queue(port, ct_cmd);
1481 1481 }
1482 1482 ct_cmd = fct_create_solct(port, rp,
1483 1483 NS_GSPN_ID, fct_gspn_cb);
1484 1484 if (ct_cmd)
1485 1485 fct_post_to_solcmd_queue(port, ct_cmd);
1486 1486 ct_cmd = fct_create_solct(port, rp,
1487 1487 NS_GCS_ID, fct_gcs_cb);
1488 1488 if (ct_cmd)
1489 1489 fct_post_to_solcmd_queue(port, ct_cmd);
1490 1490 ct_cmd = fct_create_solct(port, rp,
1491 1491 NS_GFT_ID, fct_gft_cb);
1492 1492 if (ct_cmd)
1493 1493 fct_post_to_solcmd_queue(port, ct_cmd);
1494 1494 }
1495 1495 } else {
1496 1496 /*
1497 1497 * The reason we set this flag is to prevent
1498 1498 * killing a PRLI while we have not yet processed
1499 1499 * a response to PLOGI. Because the initiator
1500 1500 * will send a PRLI as soon as it responds to PLOGI.
1501 1501 * Check fct_process_els() for more info.
1502 1502 */
1503 1503 atomic_or_32(&irp->irp_flags,
1504 1504 IRP_SOL_PLOGI_IN_PROGRESS);
1505 1505 atomic_or_32(&icmd->icmd_flags, ICMD_KNOWN_TO_FCA);
1506 1506 ret = port->port_send_cmd(cmd);
1507 1507 if (ret != FCT_SUCCESS) {
1508 1508 atomic_and_32(&icmd->icmd_flags,
1509 1509 ~ICMD_KNOWN_TO_FCA);
1510 1510 atomic_and_32(&irp->irp_flags,
1511 1511 ~IRP_SOL_PLOGI_IN_PROGRESS);
1512 1512 }
1513 1513 }
1514 1514 }
1515 1515 atomic_dec_16(&irp->irp_sa_elses_count);
1516 1516
1517 1517 if (ret == FCT_SUCCESS) {
1518 1518 if (cmd_type == FCT_CMD_RCVD_ELS) {
1519 1519 atomic_or_32(&irp->irp_flags, IRP_PLOGI_DONE);
1520 1520 atomic_inc_32(&iport->iport_nrps_login);
1521 1521 if (irp->irp_deregister_timer)
1522 1522 irp->irp_deregister_timer = 0;
1523 1523 }
1524 1524 if (icmd_flags & ICMD_IMPLICIT) {
1525 1525 DTRACE_FC_5(rport__login__end,
1526 1526 fct_cmd_t, cmd,
1527 1527 fct_local_port_t, port,
1528 1528 fct_i_remote_port_t, irp,
1529 1529 int, (cmd_type != FCT_CMD_RCVD_ELS),
1530 1530 int, FCT_SUCCESS);
1531 1531
1532 1532 p = els->els_resp_payload;
1533 1533 p[0] = ELS_OP_ACC;
1534 1534 cmd->cmd_comp_status = FCT_SUCCESS;
1535 1535 fct_send_cmd_done(cmd, FCT_SUCCESS, FCT_IOF_FCA_DONE);
1536 1536 }
1537 1537 } else {
1538 1538 DTRACE_FC_5(rport__login__end,
1539 1539 fct_cmd_t, cmd,
1540 1540 fct_local_port_t, port,
1541 1541 fct_i_remote_port_t, irp,
1542 1542 int, (cmd_type != FCT_CMD_RCVD_ELS),
1543 1543 int, ret);
1544 1544
1545 1545 fct_queue_cmd_for_termination(cmd, ret);
1546 1546 }
1547 1547
1548 1548 /* Do not touch cmd here as it may have been freed */
1549 1549
1550 1550 return (DISC_ACTION_RESCAN);
1551 1551 }
1552 1552
1553 1553 uint8_t fct_prli_temp[] = { 0x20, 0x10, 0, 0x14, 8, 0, 0x20, 0, 0, 0, 0, 0,
1554 1554 0, 0, 0, 0 };
1555 1555
1556 1556 disc_action_t
1557 1557 fct_process_prli(fct_i_cmd_t *icmd)
1558 1558 {
1559 1559 fct_cmd_t *cmd = icmd->icmd_cmd;
1560 1560 fct_remote_port_t *rp = cmd->cmd_rp;
1561 1561 fct_local_port_t *port = cmd->cmd_port;
1562 1562 fct_i_local_port_t *iport = (fct_i_local_port_t *)
1563 1563 port->port_fct_private;
1564 1564 fct_els_t *els = (fct_els_t *)
1565 1565 cmd->cmd_specific;
1566 1566 fct_i_remote_port_t *irp = (fct_i_remote_port_t *)
1567 1567 rp->rp_fct_private;
1568 1568 stmf_scsi_session_t *ses = NULL;
1569 1569 fct_status_t ret;
1570 1570 clock_t end_time;
1571 1571 char info[FCT_INFO_LEN];
1572 1572
1573 1573 /* We dont support solicited PRLIs yet */
1574 1574 ASSERT(cmd->cmd_type == FCT_CMD_RCVD_ELS);
1575 1575
1576 1576 if (irp->irp_flags & IRP_SOL_PLOGI_IN_PROGRESS) {
1577 1577 /*
1578 1578 * Dont process the PRLI yet. Let the framework process the
1579 1579 * PLOGI completion 1st. This should be very quick because
1580 1580 * the reason we got the PRLI is because the initiator
1581 1581 * has responded to PLOGI already.
1582 1582 */
1583 1583 /* XXX: Probably need a timeout here */
1584 1584 return (DISC_ACTION_DELAY_RESCAN);
1585 1585 }
1586 1586 /* The caller has made sure that login is done */
1587 1587
1588 1588 /* Make sure the process is fcp in this case */
1589 1589 if ((els->els_req_size != 20) || (bcmp(els->els_req_payload,
1590 1590 fct_prli_temp, 16))) {
1591 1591 if (els->els_req_payload[4] != 0x08)
1592 1592 stmf_trace(iport->iport_alias, "PRLI received from"
1593 1593 " %x for unknown FC-4 type %x", cmd->cmd_rportid,
1594 1594 els->els_req_payload[4]);
1595 1595 else
1596 1596 stmf_trace(iport->iport_alias, "Rejecting PRLI from %x "
1597 1597 " pld sz %d, prli_flags %x", cmd->cmd_rportid,
1598 1598 els->els_req_size, els->els_req_payload[6]);
1599 1599
1600 1600 fct_dequeue_els(irp);
1601 1601 atomic_dec_16(&irp->irp_sa_elses_count);
1602 1602 ret = fct_send_accrjt(cmd, ELS_OP_LSRJT, 3, 0x2c);
1603 1603 goto prli_end;
1604 1604 }
1605 1605
1606 1606 if (irp->irp_fcp_xchg_count) {
1607 1607 /* Trigger cleanup if necessary */
1608 1608 if ((irp->irp_flags & IRP_FCP_CLEANUP) == 0) {
1609 1609 stmf_trace(iport->iport_alias, "handling PRLI from"
1610 1610 " %x. Triggering cleanup", cmd->cmd_rportid);
1611 1611 if (fct_trigger_rport_cleanup(irp, FCT_CMD_FCP_XCHG)) {
1612 1612 atomic_or_32(&irp->irp_flags, IRP_FCP_CLEANUP);
1613 1613 } else {
1614 1614 /* XXX: handle this */
1615 1615 /* EMPTY */
1616 1616 }
1617 1617 }
1618 1618
1619 1619 end_time = icmd->icmd_start_time +
1620 1620 drv_usectohz(USEC_ELS_TIMEOUT);
1621 1621 if (ddi_get_lbolt() > end_time) {
1622 1622 (void) snprintf(info, sizeof (info),
1623 1623 "fct_process_prli: unable to clean "
1624 1624 "up I/O. iport-%p, icmd-%p", (void *)iport,
1625 1625 (void *)icmd);
1626 1626 (void) fct_port_shutdown(iport->iport_port,
1627 1627 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
1628 1628
1629 1629 return (DISC_ACTION_DELAY_RESCAN);
1630 1630 }
1631 1631
1632 1632 if ((ddi_get_lbolt() & 0x7f) == 0) {
1633 1633 stmf_trace(iport->iport_alias, "handling"
1634 1634 " PRLI from %x, waiting for cmds to"
1635 1635 " drain", cmd->cmd_rportid);
1636 1636 }
1637 1637 return (DISC_ACTION_DELAY_RESCAN);
1638 1638 }
1639 1639 atomic_and_32(&irp->irp_flags, ~IRP_FCP_CLEANUP);
1640 1640
1641 1641 /* Session can only be terminated after all the I/Os have drained */
1642 1642 if (irp->irp_flags & IRP_SCSI_SESSION_STARTED) {
1643 1643 stmf_deregister_scsi_session(iport->iport_port->port_lport,
1644 1644 irp->irp_session);
1645 1645 stmf_free(irp->irp_session);
1646 1646 irp->irp_session = NULL;
1647 1647 atomic_and_32(&irp->irp_flags, ~IRP_SCSI_SESSION_STARTED);
1648 1648 }
1649 1649
1650 1650 /* All good, lets start a session */
1651 1651 ses = (stmf_scsi_session_t *)stmf_alloc(STMF_STRUCT_SCSI_SESSION, 0, 0);
1652 1652 if (ses) {
1653 1653 ses->ss_port_private = irp;
1654 1654 ses->ss_rport_id = (scsi_devid_desc_t *)irp->irp_id;
1655 1655 ses->ss_lport = port->port_lport;
1656 1656 if (stmf_register_scsi_session(port->port_lport, ses) !=
1657 1657 STMF_SUCCESS) {
1658 1658 stmf_free(ses);
1659 1659 ses = NULL;
1660 1660 } else {
1661 1661 irp->irp_session = ses;
1662 1662 irp->irp_session->ss_rport_alias = irp->irp_snn;
1663 1663
1664 1664 /*
1665 1665 * The reason IRP_SCSI_SESSION_STARTED is different
1666 1666 * from IRP_PRLI_DONE is that we clear IRP_PRLI_DONE
1667 1667 * inside interrupt context. We dont want to deregister
1668 1668 * the session from an interrupt.
1669 1669 */
1670 1670 atomic_or_32(&irp->irp_flags, IRP_SCSI_SESSION_STARTED);
1671 1671 }
1672 1672 }
1673 1673
1674 1674 fct_dequeue_els(irp);
1675 1675 atomic_dec_16(&irp->irp_sa_elses_count);
1676 1676 if (ses == NULL) {
1677 1677 /* fail PRLI */
1678 1678 ret = fct_send_accrjt(cmd, ELS_OP_LSRJT, 3, 0);
1679 1679 } else {
1680 1680 /* accept PRLI */
1681 1681 els->els_resp_payload = (uint8_t *)kmem_zalloc(20, KM_SLEEP);
1682 1682 bcopy(fct_prli_temp, els->els_resp_payload, 20);
1683 1683 els->els_resp_payload[0] = 2;
1684 1684 els->els_resp_payload[6] = 0x21;
1685 1685
1686 1686 /* XXX the two bytes below need to set as per capabilities */
1687 1687 els->els_resp_payload[18] = 0;
1688 1688 els->els_resp_payload[19] = 0x12;
1689 1689
1690 1690 els->els_resp_size = els->els_resp_alloc_size = 20;
1691 1691 if ((ret = port->port_send_cmd_response(cmd, 0)) !=
1692 1692 FCT_SUCCESS) {
1693 1693 stmf_deregister_scsi_session(port->port_lport, ses);
1694 1694 stmf_free(irp->irp_session);
1695 1695 irp->irp_session = NULL;
1696 1696 atomic_and_32(&irp->irp_flags,
1697 1697 ~IRP_SCSI_SESSION_STARTED);
1698 1698 } else {
1699 1699 /* Mark that PRLI is done */
1700 1700 atomic_or_32(&irp->irp_flags, IRP_PRLI_DONE);
1701 1701 }
1702 1702 }
1703 1703
1704 1704 prli_end:;
1705 1705 if (ret != FCT_SUCCESS)
1706 1706 fct_queue_cmd_for_termination(cmd, ret);
1707 1707
1708 1708 return (DISC_ACTION_RESCAN);
1709 1709 }
1710 1710
1711 1711 disc_action_t
1712 1712 fct_process_logo(fct_i_cmd_t *icmd)
1713 1713 {
1714 1714 fct_cmd_t *cmd = icmd->icmd_cmd;
1715 1715 fct_remote_port_t *rp = cmd->cmd_rp;
1716 1716 fct_local_port_t *port = cmd->cmd_port;
1717 1717 fct_i_local_port_t *iport = (fct_i_local_port_t *)
1718 1718 port->port_fct_private;
1719 1719 fct_i_remote_port_t *irp = (fct_i_remote_port_t *)
1720 1720 rp->rp_fct_private;
1721 1721 fct_status_t ret;
1722 1722 char info[FCT_INFO_LEN];
1723 1723 clock_t end_time;
1724 1724
1725 1725 DTRACE_FC_4(rport__logout__start,
1726 1726 fct_cmd_t, cmd,
1727 1727 fct_local_port_t, port,
1728 1728 fct_i_remote_port_t, irp,
1729 1729 int, (cmd->cmd_type != FCT_CMD_RCVD_ELS));
1730 1730
1731 1731 /* Drain I/Os */
1732 1732 if ((irp->irp_nonfcp_xchg_count + irp->irp_fcp_xchg_count) > 1) {
1733 1733 /* Trigger cleanup if necessary */
1734 1734 if ((irp->irp_flags & IRP_SESSION_CLEANUP) == 0) {
1735 1735 stmf_trace(iport->iport_alias, "handling LOGO rp_id"
1736 1736 " %x. Triggering cleanup", cmd->cmd_rportid);
1737 1737 /* Cleanup everything except elses */
1738 1738 if (fct_trigger_rport_cleanup(irp, ~(cmd->cmd_type))) {
1739 1739 atomic_or_32(&irp->irp_flags,
1740 1740 IRP_SESSION_CLEANUP);
1741 1741 } else {
1742 1742 /* XXX: need more handling */
1743 1743 return (DISC_ACTION_DELAY_RESCAN);
1744 1744 }
1745 1745 }
1746 1746
1747 1747 end_time = icmd->icmd_start_time +
1748 1748 drv_usectohz(USEC_ELS_TIMEOUT);
1749 1749 if (ddi_get_lbolt() > end_time) {
1750 1750 (void) snprintf(info, sizeof (info),
1751 1751 "fct_process_logo: unable to clean "
1752 1752 "up I/O. iport-%p, icmd-%p", (void *)iport,
1753 1753 (void *)icmd);
1754 1754 (void) fct_port_shutdown(iport->iport_port,
1755 1755 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
1756 1756
1757 1757 return (DISC_ACTION_DELAY_RESCAN);
1758 1758 }
1759 1759
1760 1760 if ((ddi_get_lbolt() & 0x7f) == 0) {
1761 1761 stmf_trace(iport->iport_alias, "handling"
1762 1762 " LOGO rp_id %x, waiting for cmds to"
1763 1763 " drain", cmd->cmd_rportid);
1764 1764 }
1765 1765 return (DISC_ACTION_DELAY_RESCAN);
1766 1766 }
1767 1767 atomic_and_32(&irp->irp_flags, ~IRP_SESSION_CLEANUP);
1768 1768
1769 1769 /* Session can only be terminated after all the I/Os have drained */
1770 1770 if (irp->irp_flags & IRP_SCSI_SESSION_STARTED) {
1771 1771 stmf_deregister_scsi_session(iport->iport_port->port_lport,
1772 1772 irp->irp_session);
1773 1773 stmf_free(irp->irp_session);
1774 1774 irp->irp_session = NULL;
1775 1775 atomic_and_32(&irp->irp_flags, ~IRP_SCSI_SESSION_STARTED);
1776 1776 }
1777 1777
1778 1778 fct_dequeue_els(irp);
1779 1779 atomic_dec_16(&irp->irp_sa_elses_count);
1780 1780
1781 1781 /* don't send response if this is an implicit logout cmd */
1782 1782 if (!(icmd->icmd_flags & ICMD_IMPLICIT)) {
1783 1783 if (cmd->cmd_type == FCT_CMD_RCVD_ELS) {
1784 1784 ret = fct_send_accrjt(cmd, ELS_OP_ACC, 0, 0);
1785 1785 } else {
1786 1786 atomic_or_32(&icmd->icmd_flags, ICMD_KNOWN_TO_FCA);
1787 1787 ret = port->port_send_cmd(cmd);
1788 1788 if (ret != FCT_SUCCESS) {
1789 1789 atomic_and_32(&icmd->icmd_flags,
1790 1790 ~ICMD_KNOWN_TO_FCA);
1791 1791 }
1792 1792 }
1793 1793
1794 1794 if (ret != FCT_SUCCESS) {
1795 1795 fct_queue_cmd_for_termination(cmd, ret);
1796 1796 }
1797 1797
1798 1798 DTRACE_FC_4(rport__logout__end,
1799 1799 fct_cmd_t, cmd,
1800 1800 fct_local_port_t, port,
1801 1801 fct_i_remote_port_t, irp,
1802 1802 int, (cmd->cmd_type != FCT_CMD_RCVD_ELS));
1803 1803
1804 1804 } else {
1805 1805 DTRACE_FC_4(rport__logout__end,
1806 1806 fct_cmd_t, cmd,
1807 1807 fct_local_port_t, port,
1808 1808 fct_i_remote_port_t, irp,
1809 1809 int, (cmd->cmd_type != FCT_CMD_RCVD_ELS));
1810 1810
1811 1811 fct_cmd_free(cmd);
1812 1812 }
1813 1813
1814 1814 irp->irp_deregister_timer = ddi_get_lbolt() +
1815 1815 drv_usectohz(USEC_DEREG_RP_TIMEOUT);
1816 1816 irp->irp_dereg_count = 0;
1817 1817
1818 1818 /* Do not touch cmd here as it may have been freed */
1819 1819
1820 1820 ASSERT(irp->irp_flags & IRP_IN_DISCOVERY_QUEUE);
1821 1821
1822 1822 return (DISC_ACTION_RESCAN);
1823 1823 }
1824 1824
1825 1825 disc_action_t
1826 1826 fct_process_prlo(fct_i_cmd_t *icmd)
1827 1827 {
1828 1828 fct_cmd_t *cmd = icmd->icmd_cmd;
1829 1829 fct_remote_port_t *rp = cmd->cmd_rp;
1830 1830 fct_local_port_t *port = cmd->cmd_port;
1831 1831 fct_i_local_port_t *iport = (fct_i_local_port_t *)
1832 1832 port->port_fct_private;
1833 1833 fct_i_remote_port_t *irp = (fct_i_remote_port_t *)
1834 1834 rp->rp_fct_private;
1835 1835 fct_status_t ret;
1836 1836 clock_t end_time;
1837 1837 char info[FCT_INFO_LEN];
1838 1838
1839 1839 /* We do not support solicited PRLOs yet */
1840 1840 ASSERT(cmd->cmd_type == FCT_CMD_RCVD_ELS);
1841 1841
1842 1842 /* Drain I/Os */
1843 1843 if (irp->irp_fcp_xchg_count) {
1844 1844 /* Trigger cleanup if necessary */
1845 1845 if ((irp->irp_flags & IRP_FCP_CLEANUP) == 0) {
1846 1846 stmf_trace(iport->iport_alias, "handling LOGO from"
1847 1847 " %x. Triggering cleanup", cmd->cmd_rportid);
1848 1848 /* Cleanup everything except elses */
1849 1849 if (fct_trigger_rport_cleanup(irp, FCT_CMD_FCP_XCHG)) {
1850 1850 atomic_or_32(&irp->irp_flags,
1851 1851 IRP_FCP_CLEANUP);
1852 1852 } else {
1853 1853 /* XXX: need more handling */
1854 1854 return (DISC_ACTION_DELAY_RESCAN);
1855 1855 }
1856 1856 }
1857 1857
1858 1858 end_time = icmd->icmd_start_time +
1859 1859 drv_usectohz(USEC_ELS_TIMEOUT);
1860 1860 if (ddi_get_lbolt() > end_time) {
1861 1861 (void) snprintf(info, sizeof (info),
1862 1862 "fct_process_prlo: unable to "
1863 1863 "clean up I/O. iport-%p, icmd-%p", (void *)iport,
1864 1864 (void *)icmd);
1865 1865 (void) fct_port_shutdown(iport->iport_port,
1866 1866 STMF_RFLAG_FATAL_ERROR | STMF_RFLAG_RESET, info);
1867 1867
1868 1868 return (DISC_ACTION_DELAY_RESCAN);
1869 1869 }
1870 1870
1871 1871 if ((ddi_get_lbolt() & 0x7f) == 0) {
1872 1872 stmf_trace(iport->iport_alias, "handling"
1873 1873 " PRLO from %x, waiting for cmds to"
1874 1874 " drain", cmd->cmd_rportid);
1875 1875 }
1876 1876 return (DISC_ACTION_DELAY_RESCAN);
1877 1877 }
1878 1878 atomic_and_32(&irp->irp_flags, ~IRP_FCP_CLEANUP);
1879 1879
1880 1880 /* Session can only be terminated after all the I/Os have drained */
1881 1881 if (irp->irp_flags & IRP_SCSI_SESSION_STARTED) {
1882 1882 stmf_deregister_scsi_session(iport->iport_port->port_lport,
1883 1883 irp->irp_session);
1884 1884 stmf_free(irp->irp_session);
1885 1885 irp->irp_session = NULL;
1886 1886 atomic_and_32(&irp->irp_flags, ~IRP_SCSI_SESSION_STARTED);
1887 1887 }
1888 1888
1889 1889 fct_dequeue_els(irp);
1890 1890 atomic_dec_16(&irp->irp_sa_elses_count);
1891 1891 ret = fct_send_accrjt(cmd, ELS_OP_ACC, 0, 0);
1892 1892 if (ret != FCT_SUCCESS)
1893 1893 fct_queue_cmd_for_termination(cmd, ret);
1894 1894
1895 1895 return (DISC_ACTION_RESCAN);
1896 1896 }
1897 1897
1898 1898 disc_action_t
1899 1899 fct_process_rcvd_adisc(fct_i_cmd_t *icmd)
1900 1900 {
1901 1901 fct_cmd_t *cmd = icmd->icmd_cmd;
1902 1902 fct_remote_port_t *rp = cmd->cmd_rp;
1903 1903 fct_local_port_t *port = cmd->cmd_port;
1904 1904 fct_i_local_port_t *iport = (fct_i_local_port_t *)
1905 1905 port->port_fct_private;
1906 1906 fct_els_t *els = (fct_els_t *)
1907 1907 cmd->cmd_specific;
1908 1908 fct_i_remote_port_t *irp = (fct_i_remote_port_t *)
1909 1909 rp->rp_fct_private;
1910 1910 uint8_t *p;
1911 1911 uint32_t *q;
1912 1912 fct_status_t ret;
1913 1913
1914 1914 fct_dequeue_els(irp);
1915 1915 atomic_dec_16(&irp->irp_nsa_elses_count);
1916 1916
1917 1917 /* Validate the adisc request */
1918 1918 p = els->els_req_payload;
1919 1919 q = (uint32_t *)p;
1920 1920 if ((els->els_req_size != 28) || (bcmp(rp->rp_pwwn, p + 8, 8)) ||
1921 1921 (bcmp(rp->rp_nwwn, p + 16, 8))) {
1922 1922 ret = fct_send_accrjt(cmd, ELS_OP_LSRJT, 3, 0);
1923 1923 } else {
1924 1924 rp->rp_hard_address = BE_32(q[1]);
1925 1925 els->els_resp_size = els->els_resp_alloc_size = 28;
1926 1926 els->els_resp_payload = (uint8_t *)kmem_zalloc(28, KM_SLEEP);
1927 1927 bcopy(p, els->els_resp_payload, 28);
1928 1928 p = els->els_resp_payload;
1929 1929 q = (uint32_t *)p;
1930 1930 p[0] = ELS_OP_ACC;
1931 1931 q[1] = BE_32(port->port_hard_address);
1932 1932 bcopy(port->port_pwwn, p + 8, 8);
1933 1933 bcopy(port->port_nwwn, p + 16, 8);
1934 1934 q[6] = BE_32(iport->iport_link_info.portid);
1935 1935 ret = port->port_send_cmd_response(cmd, 0);
1936 1936 }
1937 1937 if (ret != FCT_SUCCESS) {
1938 1938 fct_queue_cmd_for_termination(cmd, ret);
1939 1939 }
1940 1940
1941 1941 return (DISC_ACTION_RESCAN);
1942 1942 }
1943 1943
1944 1944 disc_action_t
1945 1945 fct_process_unknown_els(fct_i_cmd_t *icmd)
1946 1946 {
1947 1947 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
1948 1948 fct_status_t ret = FCT_FAILURE;
1949 1949 uint8_t op = 0;
1950 1950
1951 1951 ASSERT(icmd->icmd_cmd->cmd_type == FCT_CMD_RCVD_ELS);
1952 1952 fct_dequeue_els(ICMD_TO_IRP(icmd));
1953 1953 atomic_dec_16(&ICMD_TO_IRP(icmd)->irp_nsa_elses_count);
1954 1954 op = ICMD_TO_ELS(icmd)->els_req_payload[0];
1955 1955 stmf_trace(iport->iport_alias, "Rejecting unknown unsol els %x (%s)",
1956 1956 op, FCT_ELS_NAME(op));
1957 1957 ret = fct_send_accrjt(icmd->icmd_cmd, ELS_OP_LSRJT, 1, 0);
1958 1958 if (ret != FCT_SUCCESS) {
1959 1959 fct_queue_cmd_for_termination(icmd->icmd_cmd, ret);
1960 1960 }
1961 1961
1962 1962 return (DISC_ACTION_RESCAN);
1963 1963 }
1964 1964
1965 1965 disc_action_t
1966 1966 fct_process_rscn(fct_i_cmd_t *icmd)
1967 1967 {
1968 1968 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
1969 1969 fct_status_t ret = FCT_FAILURE;
1970 1970 uint8_t op = 0;
1971 1971 uint8_t *rscn_req_payload;
1972 1972 uint32_t rscn_req_size;
1973 1973
1974 1974 fct_dequeue_els(ICMD_TO_IRP(icmd));
1975 1975 atomic_dec_16(&ICMD_TO_IRP(icmd)->irp_nsa_elses_count);
1976 1976 if (icmd->icmd_cmd->cmd_type == FCT_CMD_RCVD_ELS) {
1977 1977 op = ICMD_TO_ELS(icmd)->els_req_payload[0];
1978 1978 stmf_trace(iport->iport_alias, "Accepting RSCN %x (%s)",
1979 1979 op, FCT_ELS_NAME(op));
1980 1980 rscn_req_size = ICMD_TO_ELS(icmd)->els_req_size;
1981 1981 rscn_req_payload = kmem_alloc(rscn_req_size, KM_SLEEP);
1982 1982 bcopy(ICMD_TO_ELS(icmd)->els_req_payload, rscn_req_payload,
1983 1983 rscn_req_size);
1984 1984 ret = fct_send_accrjt(icmd->icmd_cmd, ELS_OP_ACC, 1, 0);
1985 1985 if (ret != FCT_SUCCESS) {
1986 1986 fct_queue_cmd_for_termination(icmd->icmd_cmd, ret);
1987 1987 } else {
1988 1988 if (fct_rscn_options & RSCN_OPTION_VERIFY) {
1989 1989 fct_rscn_verify(iport, rscn_req_payload,
1990 1990 rscn_req_size);
1991 1991 }
1992 1992 }
1993 1993
1994 1994 kmem_free(rscn_req_payload, rscn_req_size);
1995 1995 } else {
1996 1996 ASSERT(0);
1997 1997 }
1998 1998
1999 1999 return (DISC_ACTION_RESCAN);
2000 2000 }
2001 2001
2002 2002 disc_action_t
2003 2003 fct_process_els(fct_i_local_port_t *iport, fct_i_remote_port_t *irp)
2004 2004 {
2005 2005 fct_i_cmd_t *cmd_to_abort = NULL;
2006 2006 fct_i_cmd_t **ppcmd, *icmd;
2007 2007 fct_cmd_t *cmd;
2008 2008 fct_els_t *els;
2009 2009 int dq;
2010 2010 disc_action_t ret = DISC_ACTION_NO_WORK;
2011 2011 uint8_t op;
2012 2012
2013 2013 mutex_exit(&iport->iport_worker_lock);
2014 2014
2015 2015 /*
2016 2016 * Do some cleanup based on the following.
2017 2017 * - We can only have one session affecting els pending.
2018 2018 * - If any session affecting els is pending no other els is allowed.
2019 2019 * - If PLOGI is not done, nothing except PLOGI or LOGO is allowed.
2020 2020 * NOTE: If port is down the cleanup is done outside of this
2021 2021 * function.
2022 2022 * NOTE: There is a side effect, if a sa ELS (non PLOGI) is received
2023 2023 * while a PLOGI is pending, it will kill itself and the PLOGI.
2024 2024 * which is probably ok.
2025 2025 */
2026 2026 rw_enter(&irp->irp_lock, RW_WRITER);
2027 2027 ppcmd = &irp->irp_els_list;
2028 2028 while ((*ppcmd) != NULL) {
2029 2029 int special_prli_cond = 0;
2030 2030 dq = 0;
2031 2031
2032 2032 els = (fct_els_t *)((*ppcmd)->icmd_cmd)->cmd_specific;
2033 2033
2034 2034 if (((*ppcmd)->icmd_cmd->cmd_type == FCT_CMD_RCVD_ELS) &&
2035 2035 (els->els_req_payload[0] == ELS_OP_PRLI) &&
2036 2036 (irp->irp_flags & IRP_SOL_PLOGI_IN_PROGRESS)) {
2037 2037 /*
2038 2038 * The initiator sent a PRLI right after responding
2039 2039 * to PLOGI and we have not yet finished processing
2040 2040 * the PLOGI completion. We should not kill the PRLI
2041 2041 * as the initiator may not retry it.
2042 2042 */
2043 2043 special_prli_cond = 1;
2044 2044 }
2045 2045
2046 2046 if ((*ppcmd)->icmd_flags & ICMD_BEING_ABORTED) {
2047 2047 dq = 1;
2048 2048 } else if (irp->irp_sa_elses_count > 1) {
2049 2049 dq = 1;
2050 2050 /* This els might have set the CLEANUP flag */
2051 2051 atomic_and_32(&irp->irp_flags, ~IRP_SESSION_CLEANUP);
2052 2052 stmf_trace(iport->iport_alias, "Killing ELS %x cond 1",
2053 2053 els->els_req_payload[0]);
2054 2054 } else if (irp->irp_sa_elses_count &&
2055 2055 (((*ppcmd)->icmd_flags & ICMD_SESSION_AFFECTING) == 0)) {
2056 2056 stmf_trace(iport->iport_alias, "Killing ELS %x cond 2",
2057 2057 els->els_req_payload[0]);
2058 2058 dq = 1;
2059 2059 } else if (((irp->irp_flags & IRP_PLOGI_DONE) == 0) &&
2060 2060 (els->els_req_payload[0] != ELS_OP_PLOGI) &&
2061 2061 (els->els_req_payload[0] != ELS_OP_LOGO) &&
2062 2062 (special_prli_cond == 0)) {
2063 2063 stmf_trace(iport->iport_alias, "Killing ELS %x cond 3",
2064 2064 els->els_req_payload[0]);
2065 2065 dq = 1;
2066 2066 }
2067 2067
2068 2068 if (dq) {
2069 2069 fct_i_cmd_t *c = (*ppcmd)->icmd_next;
2070 2070
2071 2071 if ((*ppcmd)->icmd_flags & ICMD_SESSION_AFFECTING)
2072 2072 atomic_dec_16(&irp->irp_sa_elses_count);
2073 2073 else
2074 2074 atomic_dec_16(&irp->irp_nsa_elses_count);
2075 2075 (*ppcmd)->icmd_next = cmd_to_abort;
2076 2076 cmd_to_abort = *ppcmd;
2077 2077 *ppcmd = c;
2078 2078 } else {
2079 2079 ppcmd = &((*ppcmd)->icmd_next);
2080 2080 }
2081 2081 }
2082 2082 rw_exit(&irp->irp_lock);
2083 2083
2084 2084 while (cmd_to_abort) {
2085 2085 fct_i_cmd_t *c = cmd_to_abort->icmd_next;
2086 2086
2087 2087 atomic_and_32(&cmd_to_abort->icmd_flags, ~ICMD_IN_IRP_QUEUE);
2088 2088 fct_queue_cmd_for_termination(cmd_to_abort->icmd_cmd,
2089 2089 FCT_ABORTED);
2090 2090 cmd_to_abort = c;
2091 2091 }
2092 2092
2093 2093 /*
2094 2094 * pick from the top of the queue
2095 2095 */
2096 2096 icmd = irp->irp_els_list;
2097 2097 if (icmd == NULL) {
2098 2098 /*
2099 2099 * The cleanup took care of everything.
2100 2100 */
2101 2101
2102 2102 mutex_enter(&iport->iport_worker_lock);
2103 2103 return (DISC_ACTION_RESCAN);
2104 2104 }
2105 2105
2106 2106 cmd = icmd->icmd_cmd;
2107 2107 els = ICMD_TO_ELS(icmd);
2108 2108 op = els->els_req_payload[0];
2109 2109 if ((icmd->icmd_flags & ICMD_ELS_PROCESSING_STARTED) == 0) {
2110 2110 stmf_trace(iport->iport_alias, "Processing %ssol ELS %x (%s) "
2111 2111 "rp_id=%x", (cmd->cmd_type == FCT_CMD_RCVD_ELS) ? "un" : "",
2112 2112 op, FCT_ELS_NAME(op), cmd->cmd_rportid);
2113 2113 atomic_or_32(&icmd->icmd_flags, ICMD_ELS_PROCESSING_STARTED);
2114 2114 }
2115 2115
2116 2116 if (op == ELS_OP_PLOGI) {
2117 2117 ret |= fct_process_plogi(icmd);
2118 2118 } else if (op == ELS_OP_PRLI) {
2119 2119 ret |= fct_process_prli(icmd);
2120 2120 } else if (op == ELS_OP_LOGO) {
2121 2121 ret |= fct_process_logo(icmd);
2122 2122 } else if ((op == ELS_OP_PRLO) || (op == ELS_OP_TPRLO)) {
2123 2123 ret |= fct_process_prlo(icmd);
2124 2124 } else if (cmd->cmd_type == FCT_CMD_SOL_ELS) {
2125 2125 fct_status_t s;
2126 2126 fct_local_port_t *port = iport->iport_port;
2127 2127
2128 2128 fct_dequeue_els(irp);
2129 2129 atomic_dec_16(&irp->irp_nsa_elses_count);
2130 2130 atomic_or_32(&icmd->icmd_flags, ICMD_KNOWN_TO_FCA);
2131 2131 if ((s = port->port_send_cmd(cmd)) != FCT_SUCCESS) {
2132 2132 atomic_and_32(&icmd->icmd_flags, ~ICMD_KNOWN_TO_FCA);
2133 2133 fct_queue_cmd_for_termination(cmd, s);
2134 2134 stmf_trace(iport->iport_alias, "Solicited els "
2135 2135 "transport failed, ret = %llx", s);
2136 2136 }
2137 2137 } else if (op == ELS_OP_ADISC) {
2138 2138 ret |= fct_process_rcvd_adisc(icmd);
2139 2139 } else if (op == ELS_OP_RSCN) {
2140 2140 (void) fct_process_rscn(icmd);
2141 2141 } else {
2142 2142 (void) fct_process_unknown_els(icmd);
2143 2143 }
2144 2144
2145 2145 /*
2146 2146 * This if condition will be false if a sa ELS trigged a cleanup
2147 2147 * and set the ret = DISC_ACTION_DELAY_RESCAN. In that case we should
2148 2148 * keep it that way.
2149 2149 */
2150 2150 if (ret == DISC_ACTION_NO_WORK) {
2151 2151 /*
2152 2152 * Since we dropped the lock, we will force a rescan. The
2153 2153 * only exception is if someone returned
2154 2154 * DISC_ACTION_DELAY_RESCAN, in which case that should be the
2155 2155 * return value.
2156 2156 */
2157 2157 ret = DISC_ACTION_RESCAN;
2158 2158 }
2159 2159
2160 2160 mutex_enter(&iport->iport_worker_lock);
2161 2161 return (ret);
2162 2162 }
2163 2163
2164 2164 void
2165 2165 fct_handle_sol_els_completion(fct_i_local_port_t *iport, fct_i_cmd_t *icmd)
2166 2166 {
2167 2167 fct_i_remote_port_t *irp = NULL;
2168 2168 fct_els_t *els = ICMD_TO_ELS(icmd);
2169 2169 uint8_t op = els->els_req_payload[0];
2170 2170
2171 2171 if (icmd->icmd_cmd->cmd_rp) {
2172 2172 irp = ICMD_TO_IRP(icmd);
2173 2173 }
2174 2174 if (icmd->icmd_cmd->cmd_rp &&
2175 2175 (icmd->icmd_cmd->cmd_comp_status == FCT_SUCCESS) &&
2176 2176 (els->els_req_payload[0] == ELS_OP_PLOGI)) {
2177 2177 bcopy(els->els_resp_payload + 20, irp->irp_rp->rp_pwwn, 8);
2178 2178 bcopy(els->els_resp_payload + 28, irp->irp_rp->rp_nwwn, 8);
2179 2179
2180 2180 stmf_wwn_to_devid_desc((scsi_devid_desc_t *)irp->irp_id,
2181 2181 irp->irp_rp->rp_pwwn, PROTOCOL_FIBRE_CHANNEL);
2182 2182 atomic_or_32(&irp->irp_flags, IRP_PLOGI_DONE);
2183 2183 atomic_inc_32(&iport->iport_nrps_login);
2184 2184 if (irp->irp_deregister_timer) {
2185 2185 irp->irp_deregister_timer = 0;
2186 2186 irp->irp_dereg_count = 0;
2187 2187 }
2188 2188 }
2189 2189
2190 2190 if (irp && (els->els_req_payload[0] == ELS_OP_PLOGI)) {
2191 2191 atomic_and_32(&irp->irp_flags, ~IRP_SOL_PLOGI_IN_PROGRESS);
2192 2192 }
2193 2193 atomic_or_32(&icmd->icmd_flags, ICMD_CMD_COMPLETE);
2194 2194 stmf_trace(iport->iport_alias, "Sol ELS %x (%s) completed with "
2195 2195 "status %llx, did/%x", op, FCT_ELS_NAME(op),
2196 2196 icmd->icmd_cmd->cmd_comp_status, icmd->icmd_cmd->cmd_rportid);
2197 2197 }
2198 2198
2199 2199 static disc_action_t
2200 2200 fct_check_cmdlist(fct_i_local_port_t *iport)
2201 2201 {
2202 2202 int num_to_release, ndx;
2203 2203 fct_i_cmd_t *icmd;
2204 2204 uint32_t total, max_active;
2205 2205
2206 2206 ASSERT(MUTEX_HELD(&iport->iport_worker_lock));
2207 2207
2208 2208 total = iport->iport_total_alloced_ncmds;
2209 2209 max_active = iport->iport_max_active_ncmds;
2210 2210
2211 2211 if (total <= max_active)
2212 2212 return (DISC_ACTION_NO_WORK);
2213 2213 /*
2214 2214 * Everytime, we release half of the difference
2215 2215 */
2216 2216 num_to_release = (total + 1 - max_active) / 2;
2217 2217
2218 2218 mutex_exit(&iport->iport_worker_lock);
2219 2219 for (ndx = 0; ndx < num_to_release; ndx++) {
2220 2220 mutex_enter(&iport->iport_cached_cmd_lock);
2221 2221 icmd = iport->iport_cached_cmdlist;
2222 2222 if (icmd == NULL) {
2223 2223 mutex_exit(&iport->iport_cached_cmd_lock);
2224 2224 break;
2225 2225 }
2226 2226 iport->iport_cached_cmdlist = icmd->icmd_next;
2227 2227 iport->iport_cached_ncmds--;
2228 2228 mutex_exit(&iport->iport_cached_cmd_lock);
2229 2229 atomic_dec_32(&iport->iport_total_alloced_ncmds);
2230 2230 fct_free(icmd->icmd_cmd);
2231 2231 }
2232 2232 mutex_enter(&iport->iport_worker_lock);
2233 2233 return (DISC_ACTION_RESCAN);
2234 2234 }
2235 2235
2236 2236 /*
2237 2237 * The efficiency of handling solicited commands is very low here. But
2238 2238 * fortunately, we seldom send solicited commands. So it will not hurt
2239 2239 * the system performance much.
2240 2240 */
2241 2241 static disc_action_t
2242 2242 fct_check_solcmd_queue(fct_i_local_port_t *iport)
2243 2243 {
2244 2244 fct_i_cmd_t *icmd = NULL;
2245 2245 fct_i_cmd_t *prev_icmd = NULL;
2246 2246 fct_i_cmd_t *next_icmd = NULL;
2247 2247
2248 2248 ASSERT(mutex_owned(&iport->iport_worker_lock));
2249 2249 for (icmd = iport->iport_solcmd_queue; icmd; icmd = next_icmd) {
2250 2250 ASSERT(icmd->icmd_flags | ICMD_IN_SOLCMD_QUEUE);
2251 2251 next_icmd = icmd->icmd_solcmd_next;
2252 2252 if (icmd->icmd_flags & ICMD_SOLCMD_NEW) {
2253 2253 /*
2254 2254 * This solicited cmd is new.
2255 2255 * Dispatch ELSes to discovery queue to make use of
2256 2256 * existent framework.
2257 2257 */
2258 2258 icmd->icmd_flags &= ~ICMD_SOLCMD_NEW;
2259 2259 mutex_exit(&iport->iport_worker_lock);
2260 2260
2261 2261 if (icmd->icmd_cmd->cmd_type == FCT_CMD_SOL_ELS) {
2262 2262 fct_handle_els(icmd->icmd_cmd);
2263 2263 } else {
2264 2264 fct_handle_solct(icmd->icmd_cmd);
2265 2265 }
2266 2266
2267 2267 mutex_enter(&iport->iport_worker_lock);
2268 2268 } else if (icmd->icmd_flags & ICMD_CMD_COMPLETE) {
2269 2269 /*
2270 2270 * To make fct_check_solcmd simple and flexible,
2271 2271 * We need only call callback to finish post-handling.
2272 2272 */
2273 2273 if (icmd->icmd_cb) {
2274 2274 /*
2275 2275 * mutex ???
2276 2276 */
2277 2277 icmd->icmd_cb(icmd);
2278 2278 }
2279 2279
2280 2280
2281 2281 /*
2282 2282 * Release resources for this solicited cmd
2283 2283 */
2284 2284 if (iport->iport_solcmd_queue == icmd) {
2285 2285 iport->iport_solcmd_queue = next_icmd;
2286 2286 } else {
2287 2287 prev_icmd = iport->iport_solcmd_queue;
2288 2288 while (prev_icmd->icmd_solcmd_next != icmd) {
2289 2289 prev_icmd = prev_icmd->icmd_solcmd_next;
2290 2290 }
2291 2291 prev_icmd->icmd_solcmd_next = next_icmd;
2292 2292 }
2293 2293
2294 2294 icmd->icmd_cb = NULL;
2295 2295 mutex_exit(&iport->iport_worker_lock);
2296 2296 fct_cmd_free(icmd->icmd_cmd);
2297 2297 mutex_enter(&iport->iport_worker_lock);
2298 2298 } else {
2299 2299 /*
2300 2300 * This solicited cmd is still ongoing.
2301 2301 * We need check if it's time to abort this cmd
2302 2302 */
2303 2303 if (((icmd->icmd_start_time + drv_usectohz(
2304 2304 USEC_SOL_TIMEOUT)) < ddi_get_lbolt()) &&
2305 2305 !(icmd->icmd_flags & ICMD_BEING_ABORTED)) {
2306 2306 fct_q_for_termination_lock_held(iport,
2307 2307 icmd, FCT_ABORTED);
2308 2308 }
2309 2309 }
2310 2310 }
2311 2311
2312 2312 return (DISC_ACTION_DELAY_RESCAN);
2313 2313 }
2314 2314
2315 2315 void
2316 2316 fct_handle_solct(fct_cmd_t *cmd)
2317 2317 {
2318 2318 fct_status_t ret = FCT_SUCCESS;
2319 2319 fct_i_cmd_t *icmd = CMD_TO_ICMD(cmd);
2320 2320 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
2321 2321 fct_i_remote_port_t *irp = ICMD_TO_IRP(icmd);
2322 2322
2323 2323 ASSERT(cmd->cmd_type == FCT_CMD_SOL_CT);
2324 2324 rw_enter(&iport->iport_lock, RW_READER);
2325 2325 /*
2326 2326 * Let's make sure local port is sane
2327 2327 */
2328 2328 if ((iport->iport_link_state & S_LINK_ONLINE) == 0) {
2329 2329 rw_exit(&iport->iport_lock);
2330 2330
2331 2331 stmf_trace(iport->iport_alias, "fct_transport_solct: "
2332 2332 "solcmd-%p transport failed, becasue port state was %x",
2333 2333 cmd, iport->iport_link_state);
2334 2334 fct_queue_cmd_for_termination(cmd, FCT_LOCAL_PORT_OFFLINE);
2335 2335 return;
2336 2336 }
2337 2337
2338 2338 /*
2339 2339 * Let's make sure we have plogi-ed to name server
2340 2340 */
2341 2341 rw_enter(&irp->irp_lock, RW_READER);
2342 2342 if (!(irp->irp_flags & IRP_PLOGI_DONE)) {
2343 2343 rw_exit(&irp->irp_lock);
2344 2344 rw_exit(&iport->iport_lock);
2345 2345
2346 2346 stmf_trace(iport->iport_alias, "fct_transport_solct: "
2347 2347 "Must login to name server first - cmd-%p", cmd);
2348 2348 fct_queue_cmd_for_termination(cmd, FCT_NOT_LOGGED_IN);
2349 2349 return;
2350 2350 }
2351 2351
2352 2352 /*
2353 2353 * Let's get a slot for this solcmd
2354 2354 */
2355 2355 if (fct_alloc_cmd_slot(iport, cmd) == FCT_SLOT_EOL) {
2356 2356 rw_exit(&irp->irp_lock);
2357 2357 rw_exit(&iport->iport_lock);
2358 2358
2359 2359 stmf_trace(iport->iport_alias, "fct_transport_solcmd: "
2360 2360 "ran out of xchg resources - cmd-%p", cmd);
2361 2361 fct_queue_cmd_for_termination(cmd, FCT_NO_XCHG_RESOURCE);
2362 2362 return;
2363 2363 }
2364 2364
2365 2365 if (fct_netbuf_to_value(ICMD_TO_CT(icmd)->ct_req_payload + 8, 2) ==
2366 2366 NS_GID_PN) {
2367 2367 fct_i_remote_port_t *query_irp = NULL;
2368 2368
2369 2369 query_irp = fct_lookup_irp_by_portwwn(iport,
2370 2370 ICMD_TO_CT(icmd)->ct_req_payload + 16);
2371 2371 if (query_irp) {
2372 2372 atomic_and_32(&query_irp->irp_flags, ~IRP_RSCN_QUEUED);
2373 2373 }
2374 2374 }
2375 2375 rw_exit(&irp->irp_lock);
2376 2376 rw_exit(&iport->iport_lock);
2377 2377
2378 2378 atomic_inc_16(&irp->irp_nonfcp_xchg_count);
2379 2379 atomic_or_32(&icmd->icmd_flags, ICMD_KNOWN_TO_FCA);
2380 2380 icmd->icmd_start_time = ddi_get_lbolt();
2381 2381 ret = iport->iport_port->port_send_cmd(cmd);
2382 2382 if (ret != FCT_SUCCESS) {
2383 2383 atomic_and_32(&icmd->icmd_flags, ~ICMD_KNOWN_TO_FCA);
2384 2384 fct_queue_cmd_for_termination(cmd, ret);
2385 2385 }
2386 2386 }
2387 2387
2388 2388 void
2389 2389 fct_logo_cb(fct_i_cmd_t *icmd)
2390 2390 {
2391 2391 ASSERT(!(icmd->icmd_flags & ICMD_IMPLICIT));
2392 2392 if (!FCT_IS_ELS_ACC(icmd)) {
2393 2393 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_logo_cb: "
2394 2394 "solicited LOGO is not accepted - icmd/%p", icmd);
2395 2395 }
2396 2396 }
2397 2397
2398 2398 void
2399 2399 fct_gsnn_cb(fct_i_cmd_t *icmd)
2400 2400 {
2401 2401 int snlen = 0;
2402 2402 char *sn = NULL;
2403 2403 fct_i_remote_port_t *query_irp = NULL;
2404 2404
2405 2405 if (!FCT_IS_CT_ACC(icmd)) {
2406 2406 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gsnn_cb: "
2407 2407 "GSNN is not accepted by NS - icmd/%p", icmd);
2408 2408 return;
2409 2409 }
2410 2410 mutex_exit(&ICMD_TO_IPORT(icmd)->iport_worker_lock);
2411 2411
2412 2412 rw_enter(&ICMD_TO_IPORT(icmd)->iport_lock, RW_READER);
2413 2413 mutex_enter(&ICMD_TO_IPORT(icmd)->iport_worker_lock);
2414 2414 query_irp = fct_lookup_irp_by_nodewwn(ICMD_TO_IPORT(icmd),
2415 2415 ICMD_TO_CT(icmd)->ct_req_payload + 16);
2416 2416
2417 2417 if (!query_irp) {
2418 2418 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gsnn_cb: "
2419 2419 "can't get rp icmd-%p", icmd);
2420 2420 goto exit_gsnn_cb;
2421 2421 } else {
2422 2422 snlen = ICMD_TO_CT(icmd)->ct_resp_payload[16];
2423 2423 }
2424 2424
2425 2425 if (query_irp && snlen) {
2426 2426 /*
2427 2427 * Release previous resource, then allocate needed resource
2428 2428 */
2429 2429 sn = query_irp->irp_snn;
2430 2430 if (sn) {
2431 2431 kmem_free(sn, strlen(sn) + 1);
2432 2432 }
2433 2433
2434 2434 query_irp->irp_snn = NULL;
2435 2435 sn = kmem_zalloc(snlen + 1, KM_SLEEP);
2436 2436 (void) strncpy(sn, (char *)
2437 2437 ICMD_TO_CT(icmd)->ct_resp_payload + 17, snlen);
2438 2438 if (strlen(sn) != snlen) {
2439 2439 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias,
2440 2440 "fct_gsnn_cb: %s, but len=%d", sn, snlen);
2441 2441 kmem_free(sn, snlen + 1);
2442 2442 sn = NULL;
2443 2443 }
2444 2444
2445 2445 /*
2446 2446 * Update symbolic node name
2447 2447 */
2448 2448 query_irp->irp_snn = sn;
2449 2449 if ((query_irp->irp_flags & IRP_SCSI_SESSION_STARTED) &&
2450 2450 (query_irp->irp_session)) {
2451 2451 query_irp->irp_session->ss_rport_alias =
2452 2452 query_irp->irp_snn;
2453 2453 }
2454 2454 } else {
2455 2455 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gsnn_cb: "
2456 2456 "irp/%p, snlen/%d", query_irp, snlen);
2457 2457 }
2458 2458
2459 2459 exit_gsnn_cb:
2460 2460 rw_exit(&ICMD_TO_IPORT(icmd)->iport_lock);
2461 2461 }
2462 2462
2463 2463 void
2464 2464 fct_link_init_cb(fct_i_cmd_t *icmd)
2465 2465 {
2466 2466 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
2467 2467
2468 2468 iport->iport_li_state &= ~LI_STATE_FLAG_CMD_WAITING;
2469 2469 if (icmd->icmd_cmd->cmd_comp_status != FCT_SUCCESS) {
2470 2470 stmf_trace(iport->iport_alias, "fct_link_init_cb: ELS-%x failed"
2471 2471 "comp_status- %llx", ICMD_TO_ELS(icmd)->els_req_payload[0],
2472 2472 icmd->icmd_cmd->cmd_comp_status);
2473 2473 iport->iport_li_comp_status = icmd->icmd_cmd->cmd_comp_status;
2474 2474 } else if (icmd->icmd_cmd->cmd_type == FCT_CMD_SOL_ELS) {
2475 2475 if (!FCT_IS_ELS_ACC(icmd)) {
2476 2476 stmf_trace(iport->iport_alias,
2477 2477 "fct_link_init_cb: ELS-%x is rejected",
2478 2478 ICMD_TO_ELS(icmd)->els_req_payload[0]);
2479 2479 iport->iport_li_comp_status = FCT_REJECT_STATUS(
2480 2480 ICMD_TO_ELS(icmd)->els_resp_payload[1],
2481 2481 ICMD_TO_ELS(icmd)->els_resp_payload[2]);
2482 2482 } else {
2483 2483 iport->iport_li_comp_status = FCT_SUCCESS;
2484 2484 }
2485 2485 } else {
2486 2486 ASSERT(icmd->icmd_cmd->cmd_type == FCT_CMD_SOL_CT);
2487 2487 if (!FCT_IS_CT_ACC(icmd)) {
2488 2488 stmf_trace(iport->iport_alias,
2489 2489 "fct_link_init_cb: CT-%02x%02x is rejected",
2490 2490 ICMD_TO_CT(icmd)->ct_req_payload[8],
2491 2491 ICMD_TO_CT(icmd)->ct_req_payload[9]);
2492 2492 iport->iport_li_comp_status = FCT_REJECT_STATUS(
2493 2493 ICMD_TO_CT(icmd)->ct_resp_payload[8],
2494 2494 ICMD_TO_CT(icmd)->ct_resp_payload[9]);
2495 2495 } else {
2496 2496 iport->iport_li_comp_status = FCT_SUCCESS;
2497 2497 }
2498 2498 }
2499 2499 }
2500 2500
2501 2501 void
2502 2502 fct_gcs_cb(fct_i_cmd_t *icmd)
2503 2503 {
2504 2504 fct_sol_ct_t *ct = ICMD_TO_CT(icmd);
2505 2505 fct_i_remote_port_t *query_irp = NULL;
2506 2506 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
2507 2507 uint32_t query_portid;
2508 2508 uint8_t *resp;
2509 2509 uint8_t *req;
2510 2510
2511 2511 if (!FCT_IS_CT_ACC(icmd)) {
2512 2512 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gcs_cb: "
2513 2513 "GCS_ID is not accepted by NS - icmd/%p", icmd);
2514 2514 return;
2515 2515 }
2516 2516 mutex_exit(&iport->iport_worker_lock);
2517 2517
2518 2518 resp = ct->ct_resp_payload;
2519 2519 req = ct->ct_req_payload;
2520 2520 query_portid = (req[17] << 16) | (req[18] << 8) | req[19];
2521 2521
2522 2522 rw_enter(&iport->iport_lock, RW_READER);
2523 2523 mutex_enter(&iport->iport_worker_lock);
2524 2524 query_irp = fct_portid_to_portptr(iport, query_portid);
2525 2525
2526 2526 if (query_irp) {
2527 2527 query_irp->irp_cos = (resp[16] << 27) | (resp[17] << 18) |
2528 2528 (resp[18] << 8) | resp[19];
2529 2529 }
2530 2530 rw_exit(&iport->iport_lock);
2531 2531 }
2532 2532
2533 2533 void
2534 2534 fct_gft_cb(fct_i_cmd_t *icmd)
2535 2535 {
2536 2536 fct_sol_ct_t *ct = ICMD_TO_CT(icmd);
2537 2537 fct_i_remote_port_t *query_irp = NULL;
2538 2538 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
2539 2539 uint32_t query_portid;
2540 2540 uint8_t *resp;
2541 2541 uint8_t *req;
2542 2542
2543 2543 if (!FCT_IS_CT_ACC(icmd)) {
2544 2544 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gft_cb: "
2545 2545 "GFT_ID is not accepted by NS - icmd/%p", icmd);
2546 2546 return;
2547 2547 }
2548 2548 mutex_exit(&iport->iport_worker_lock);
2549 2549
2550 2550 resp = ct->ct_resp_payload;
2551 2551 req = ct->ct_req_payload;
2552 2552 query_portid = (req[17] << 16) | (req[18] << 8) | req[19];
2553 2553
2554 2554 rw_enter(&iport->iport_lock, RW_READER);
2555 2555 mutex_enter(&iport->iport_worker_lock);
2556 2556 query_irp = fct_portid_to_portptr(iport, query_portid);
2557 2557
2558 2558 if (query_irp) {
2559 2559 (void) memcpy(query_irp->irp_fc4types, resp + 16, 32);
2560 2560 }
2561 2561 rw_exit(&iport->iport_lock);
2562 2562 }
2563 2563
2564 2564 void
2565 2565 fct_gid_cb(fct_i_cmd_t *icmd)
2566 2566 {
2567 2567 fct_cmd_t *cmd = NULL;
2568 2568 fct_i_remote_port_t *query_irp = NULL;
2569 2569 uint32_t nsportid = 0;
2570 2570 int do_logo = 0;
2571 2571
2572 2572 mutex_exit(&ICMD_TO_IPORT(icmd)->iport_worker_lock);
2573 2573
2574 2574 rw_enter(&ICMD_TO_IPORT(icmd)->iport_lock, RW_READER);
2575 2575 mutex_enter(&ICMD_TO_IPORT(icmd)->iport_worker_lock);
2576 2576 query_irp = fct_lookup_irp_by_portwwn(ICMD_TO_IPORT(icmd),
2577 2577 ICMD_TO_CT(icmd)->ct_req_payload + 16);
2578 2578
2579 2579 if (!query_irp || (query_irp &&
2580 2580 (PTR2INT(icmd->icmd_cb_private, uint32_t) !=
2581 2581 query_irp->irp_rscn_counter))) {
2582 2582 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gid_cb: "
2583 2583 "new RSCN arrived - query_irp/%p, private-%x", query_irp,
2584 2584 PTR2INT(icmd->icmd_cb_private, uint32_t));
2585 2585 goto exit_gid_cb;
2586 2586 }
2587 2587
2588 2588 if ((query_irp->irp_flags & IRP_RSCN_QUEUED) ||
2589 2589 (!(query_irp->irp_flags & IRP_PLOGI_DONE))) {
2590 2590 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gid_cb: "
2591 2591 "not proper irp_flags - query_irp/%p", query_irp);
2592 2592 goto exit_gid_cb;
2593 2593 }
2594 2594
2595 2595 if (!FCT_IS_CT_ACC(icmd)) {
2596 2596 /*
2597 2597 * Check if it has disappeared
2598 2598 */
2599 2599 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gid_cb: "
2600 2600 "GPN_ID is not accepted by NS - icmd/%p", icmd);
2601 2601 do_logo = 1;
2602 2602 } else {
2603 2603 /*
2604 2604 * Check if its portid has changed
2605 2605 */
2606 2606 nsportid = fct_netbuf_to_value(
2607 2607 ICMD_TO_CT(icmd)->ct_resp_payload + 17, 3);
2608 2608 if (nsportid != query_irp->irp_rp->rp_id) {
2609 2609 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias,
2610 2610 "portid has changed - query_irp/%p", query_irp);
2611 2611 do_logo = 1;
2612 2612 }
2613 2613 }
2614 2614
2615 2615 if (do_logo) {
2616 2616 cmd = fct_create_solels(ICMD_TO_PORT(icmd),
2617 2617 query_irp->irp_rp, 1, ELS_OP_LOGO, 0, fct_logo_cb);
2618 2618 if (cmd) {
2619 2619 mutex_exit(&ICMD_TO_IPORT(icmd)->iport_worker_lock);
2620 2620 fct_post_implicit_logo(cmd);
2621 2621 mutex_enter(&ICMD_TO_IPORT(icmd)->iport_worker_lock);
2622 2622 }
2623 2623 }
2624 2624
2625 2625 exit_gid_cb:
2626 2626 rw_exit(&ICMD_TO_IPORT(icmd)->iport_lock);
2627 2627 }
2628 2628
2629 2629 void
2630 2630 fct_gspn_cb(fct_i_cmd_t *icmd)
2631 2631 {
2632 2632 fct_sol_ct_t *ct = ICMD_TO_CT(icmd);
2633 2633 fct_i_remote_port_t *query_irp = NULL;
2634 2634 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
2635 2635 uint32_t query_portid;
2636 2636 uint8_t *resp;
2637 2637 uint8_t *req;
2638 2638 uint8_t spnlen;
2639 2639
2640 2640 if (!FCT_IS_CT_ACC(icmd)) {
2641 2641 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_gspn_cb: "
2642 2642 "GSPN_ID is not accepted by NS - icmd/%p", icmd);
2643 2643 return;
2644 2644 }
2645 2645 mutex_exit(&iport->iport_worker_lock);
2646 2646
2647 2647 resp = ct->ct_resp_payload;
2648 2648 req = ct->ct_req_payload;
2649 2649 query_portid = (req[17] << 16) | (req[18] << 8) | req[19];
2650 2650
2651 2651 rw_enter(&iport->iport_lock, RW_READER);
2652 2652 mutex_enter(&iport->iport_worker_lock);
2653 2653 query_irp = fct_portid_to_portptr(iport, query_portid);
2654 2654 if (query_irp) {
2655 2655 spnlen = resp[16];
2656 2656 if (spnlen > 0) {
2657 2657 if (query_irp->irp_spn) {
2658 2658 kmem_free(query_irp->irp_spn,
2659 2659 strlen(query_irp->irp_spn) + 1);
2660 2660 }
2661 2661 query_irp->irp_spn = kmem_zalloc(spnlen + 1, KM_SLEEP);
2662 2662 (void) strncpy(query_irp->irp_spn,
2663 2663 (char *)resp + 17, spnlen);
2664 2664 }
2665 2665 }
2666 2666 rw_exit(&iport->iport_lock);
2667 2667 }
2668 2668
2669 2669 void
2670 2670 fct_rls_cb(fct_i_cmd_t *icmd)
2671 2671 {
2672 2672 fct_els_t *els = ICMD_TO_ELS(icmd);
2673 2673 uint8_t *resp;
2674 2674 fct_rls_cb_data_t *rls_cb_data = NULL;
2675 2675 fct_port_link_status_t *rls_resp;
2676 2676 fct_i_local_port_t *iport = ICMD_TO_IPORT(icmd);
2677 2677
2678 2678 rls_cb_data = icmd->icmd_cb_private;
2679 2679
2680 2680 if (!FCT_IS_ELS_ACC(icmd)) {
2681 2681 stmf_trace(ICMD_TO_IPORT(icmd)->iport_alias, "fct_rls_cb: "
2682 2682 "solicited RLS is not accepted - icmd/%p", icmd);
2683 2683 if (rls_cb_data) {
2684 2684 rls_cb_data->fct_els_res = FCT_FAILURE;
2685 2685 sema_v(&iport->iport_rls_sema);
2686 2686 }
2687 2687 return;
2688 2688 }
2689 2689
2690 2690 if (!rls_cb_data) {
2691 2691 sema_v(&iport->iport_rls_sema);
2692 2692 return;
2693 2693 }
2694 2694
2695 2695 resp = els->els_resp_payload;
2696 2696
2697 2697 rls_cb_data = icmd->icmd_cb_private;
2698 2698
2699 2699 /* Get the response and store it somewhere */
2700 2700 rls_resp = (fct_port_link_status_t *)rls_cb_data->fct_link_status;
2701 2701 rls_resp->LinkFailureCount = BE_32(*((uint32_t *)(resp + 4)));
2702 2702 rls_resp->LossOfSyncCount = BE_32(*((uint32_t *)(resp + 8)));
2703 2703 rls_resp->LossOfSignalsCount = BE_32(*((uint32_t *)(resp + 12)));
2704 2704 rls_resp->PrimitiveSeqProtocolErrorCount =
2705 2705 BE_32(*((uint32_t *)(resp + 16)));
2706 2706 rls_resp->InvalidTransmissionWordCount =
2707 2707 BE_32(*((uint32_t *)(resp + 20)));
2708 2708 rls_resp->InvalidCRCCount = BE_32(*((uint32_t *)(resp + 24)));
2709 2709
2710 2710 rls_cb_data->fct_els_res = FCT_SUCCESS;
2711 2711 sema_v(&iport->iport_rls_sema);
2712 2712 icmd->icmd_cb_private = NULL;
2713 2713 }
2714 2714
2715 2715 /*
2716 2716 * For lookup functions, we move locking up one level
2717 2717 */
2718 2718 fct_i_remote_port_t *
2719 2719 fct_lookup_irp_by_nodewwn(fct_i_local_port_t *iport, uint8_t *nodewwn)
2720 2720 {
2721 2721 fct_i_remote_port_t *irp = NULL;
2722 2722 int idx = 0;
2723 2723
2724 2724 for (idx = 0; idx < FCT_HASH_TABLE_SIZE; idx++) {
2725 2725 for (irp = iport->iport_rp_tb[idx]; irp;
2726 2726 irp = irp->irp_next) {
2727 2727 if (bcmp(irp->irp_rp->rp_nwwn, nodewwn, FC_WWN_LEN)) {
2728 2728 continue;
2729 2729 } else {
2730 2730 return (irp);
2731 2731 }
2732 2732 }
2733 2733 }
2734 2734
2735 2735 return (NULL);
2736 2736 }
2737 2737
2738 2738 fct_i_remote_port_t *
2739 2739 fct_lookup_irp_by_portwwn(fct_i_local_port_t *iport, uint8_t *portwwn)
2740 2740 {
2741 2741 fct_i_remote_port_t *irp = NULL;
2742 2742 int idx = 0;
2743 2743
2744 2744 for (idx = 0; idx < FCT_HASH_TABLE_SIZE; idx++) {
2745 2745 for (irp = iport->iport_rp_tb[idx]; irp;
2746 2746 irp = irp->irp_next) {
2747 2747 if (bcmp(irp->irp_rp->rp_pwwn, portwwn, FC_WWN_LEN)) {
2748 2748 continue;
2749 2749 } else {
2750 2750 return (irp);
2751 2751 }
2752 2752 }
2753 2753 }
2754 2754
2755 2755 return (NULL);
2756 2756 }
2757 2757
2758 2758 #ifdef lint
2759 2759 #define FCT_VERIFY_RSCN() _NOTE(EMPTY)
2760 2760 #else
2761 2761 #define FCT_VERIFY_RSCN() \
2762 2762 do { \
2763 2763 ct_cmd = fct_create_solct(port, irp->irp_rp, NS_GID_PN, \
2764 2764 fct_gid_cb); \
2765 2765 if (ct_cmd) { \
2766 2766 uint32_t cnt; \
2767 2767 cnt = atomic_inc_32_nv(&irp->irp_rscn_counter); \
2768 2768 CMD_TO_ICMD(ct_cmd)->icmd_cb_private = \
2769 2769 INT2PTR(cnt, void *); \
2770 2770 irp->irp_flags |= IRP_RSCN_QUEUED; \
2771 2771 fct_post_to_solcmd_queue(port, ct_cmd); \
2772 2772 } \
2773 2773 } while (0)
2774 2774 #endif
2775 2775
2776 2776 /* ARGSUSED */
2777 2777 static void
2778 2778 fct_rscn_verify(fct_i_local_port_t *iport, uint8_t *rscn_req_payload,
2779 2779 uint32_t rscn_req_size)
2780 2780 {
2781 2781 int idx = 0;
2782 2782 uint8_t page_format = 0;
2783 2783 uint32_t page_portid = 0;
2784 2784 uint8_t *page_buf = NULL;
2785 2785 uint8_t *last_page_buf = NULL;
2786 2786 #ifndef lint
2787 2787 fct_cmd_t *ct_cmd = NULL;
2788 2788 fct_local_port_t *port = NULL;
2789 2789 #endif
2790 2790 fct_i_remote_port_t *irp = NULL;
2791 2791
2792 2792 page_buf = rscn_req_payload + 4;
2793 2793 last_page_buf = rscn_req_payload +
2794 2794 fct_netbuf_to_value(rscn_req_payload + 2, 2) - 4;
2795 2795 #ifndef lint
2796 2796 port = iport->iport_port;
2797 2797 #endif
2798 2798 for (; page_buf <= last_page_buf; page_buf += 4) {
2799 2799 page_format = 0x03 & page_buf[0];
2800 2800 page_portid = fct_netbuf_to_value(page_buf + 1, 3);
2801 2801
2802 2802 DTRACE_FC_2(rscn__receive,
2803 2803 fct_i_local_port_t, iport,
2804 2804 int, page_portid);
2805 2805
2806 2806 rw_enter(&iport->iport_lock, RW_READER);
2807 2807 if (!page_format) {
2808 2808 irp = fct_portid_to_portptr(iport, page_portid);
2809 2809 if (!(irp && !(irp->irp_flags & IRP_RSCN_QUEUED))) {
2810 2810 rw_exit(&iport->iport_lock);
2811 2811
2812 2812 continue; /* try next page */
2813 2813 }
2814 2814
2815 2815 if (FC_WELL_KNOWN_ADDR(irp->irp_portid) ||
2816 2816 !(irp->irp_flags & IRP_PLOGI_DONE)) {
2817 2817 rw_exit(&iport->iport_lock);
2818 2818
2819 2819 continue; /* try next page */
2820 2820 }
2821 2821
2822 2822 FCT_VERIFY_RSCN();
2823 2823 } else {
2824 2824 for (idx = 0; idx < FCT_HASH_TABLE_SIZE; idx++) {
2825 2825 for (irp = iport->iport_rp_tb[idx];
2826 2826 irp; irp = irp->irp_next) {
2827 2827 if (FC_WELL_KNOWN_ADDR(irp->irp_portid))
2828 2828 continue; /* try next irp */
2829 2829
2830 2830 if (!(irp->irp_flags & IRP_PLOGI_DONE))
2831 2831 continue; /* try next irp */
2832 2832
2833 2833 if (irp->irp_flags & IRP_RSCN_QUEUED) {
2834 2834 continue; /* try next irp */
2835 2835 }
2836 2836 #ifndef lint
2837 2837 if (!((0xFFFFFF << (page_format * 8)) &
2838 2838 (page_portid ^ irp->irp_portid))) {
2839 2839 FCT_VERIFY_RSCN();
2840 2840 }
2841 2841 #endif
2842 2842 }
2843 2843 }
2844 2844 }
2845 2845 rw_exit(&iport->iport_lock);
2846 2846 }
2847 2847 }
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