XXXX introduce drv_sectohz

*** 383,393 ****
                  /*
                   * This is only done on an administrative thread of
                   * execution so it is ok to take a while.
                   */
                  SRPT_DPRINTF_L3("stp_alloc_port, delaying");
!                 delay(2 * drv_usectohz(1000000));
                  goto retry_registration;
          }
          SRPT_DPRINTF_L1("stp_alloc_port, STMF register local port err(0x%llx)",
              (u_longlong_t)status);
  
--- 383,393 ----
                  /*
                   * This is only done on an administrative thread of
                   * execution so it is ok to take a while.
                   */
                  SRPT_DPRINTF_L3("stp_alloc_port, delaying");
!                 delay(drv_sectohz(2));
                  goto retry_registration;
          }
          SRPT_DPRINTF_L1("stp_alloc_port, STMF register local port err(0x%llx)",
              (u_longlong_t)status);
  
*** 494,504 ****
  
          /* loop waiting for all I/O to drain */
          for (;;) {
                  status = stmf_deregister_local_port(tgt->tp_lport);
                  if (status == STMF_BUSY) {
!                         delay(drv_usectohz(1000000));
                  } else {
                          break;
                  }
          }
  
--- 494,504 ----
  
          /* loop waiting for all I/O to drain */
          for (;;) {
                  status = stmf_deregister_local_port(tgt->tp_lport);
                  if (status == STMF_BUSY) {
!                         delay(drv_sectohz(1));
                  } else {
                          break;
                  }
          }