7813 mpt_sas does not like concurrent HBA resets

*** 600,611 ****
          if (config_flags & MPTSAS_REQUEST_POOL_CMD)
                  mptsas_return_to_pool(mpt, cmd);
  
          if (config_flags & MPTSAS_CMD_TIMEOUT) {
                  mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
!                 if ((mptsas_restart_ioc(mpt)) == DDI_FAILURE) {
!                         mptsas_log(mpt, CE_WARN, "mptsas_restart_ioc failed");
                  }
          }
  
          return (rval);
  }
--- 600,611 ----
          if (config_flags & MPTSAS_REQUEST_POOL_CMD)
                  mptsas_return_to_pool(mpt, cmd);
  
          if (config_flags & MPTSAS_CMD_TIMEOUT) {
                  mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
!                 if ((mptsas_reset_handler(mpt)) == DDI_FAILURE) {
!                         mptsas_log(mpt, CE_WARN, "mptsas_reset_handler failed");
                  }
          }
  
          return (rval);
  }
*** 1201,1212 ****
           */
          if (rval == FALSE) {
                  mptsas_log(mpt, CE_WARN, "mptsas_ioc_task_management failed "
                      "try to reset ioc to recovery!");
                  mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
!                 if (mptsas_restart_ioc(mpt)) {
!                         mptsas_log(mpt, CE_WARN, "mptsas_restart_ioc failed");
                          rval = FAILED;
                  }
          }
  
          return (rval);
--- 1201,1212 ----
           */
          if (rval == FALSE) {
                  mptsas_log(mpt, CE_WARN, "mptsas_ioc_task_management failed "
                      "try to reset ioc to recovery!");
                  mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
!                 if (mptsas_reset_handler(mpt)) {
!                         mptsas_log(mpt, CE_WARN, "mptsas_reset_handler failed");
                          rval = FAILED;
                  }
          }
  
          return (rval);
*** 1404,1415 ****
          rvalue = 0;
          (void) cv_reltimedwait(&mpt->m_fw_cv, &mpt->m_mutex,
              drv_usectohz(60 * MICROSEC), TR_CLOCK_TICK);
          if (!(cmd->cmd_flags & CFLAG_FINISHED)) {
                  mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
!                 if ((mptsas_restart_ioc(mpt)) == DDI_FAILURE) {
!                         mptsas_log(mpt, CE_WARN, "mptsas_restart_ioc failed");
                  }
                  rvalue = -1;
          }
          mptsas_remove_cmd(mpt, cmd);
          mptsas_dma_addr_destroy(&flsh_dma_handle, &flsh_accessp);
--- 1404,1415 ----
          rvalue = 0;
          (void) cv_reltimedwait(&mpt->m_fw_cv, &mpt->m_mutex,
              drv_usectohz(60 * MICROSEC), TR_CLOCK_TICK);
          if (!(cmd->cmd_flags & CFLAG_FINISHED)) {
                  mpt->m_softstate &= ~MPTSAS_SS_MSG_UNIT_RESET;
!                 if ((mptsas_reset_handler(mpt)) == DDI_FAILURE) {
!                         mptsas_log(mpt, CE_WARN, "mptsas_reset_handler failed");
                  }
                  rvalue = -1;
          }
          mptsas_remove_cmd(mpt, cmd);
          mptsas_dma_addr_destroy(&flsh_dma_handle, &flsh_accessp);