Author: scottl
Date: Wed Sep  6 09:19:54 2017
New Revision: 323215
URL: https://svnweb.freebsd.org/changeset/base/323215

Log:
  Checkpoint the next phase in debug message cleanup, this time focusing on
  error recovery messages.
  
  Sponsored by: Netflix

Modified:
  head/sys/dev/mpr/mpr_sas.c
  head/sys/dev/mps/mps_sas.c

Modified: head/sys/dev/mpr/mpr_sas.c
==============================================================================
--- head/sys/dev/mpr/mpr_sas.c  Wed Sep  6 07:19:22 2017        (r323214)
+++ head/sys/dev/mpr/mpr_sas.c  Wed Sep  6 09:19:54 2017        (r323215)
@@ -1286,33 +1286,39 @@ mprsas_logical_unit_reset_complete(struct mpr_softc *s
         * task management commands don't have S/G lists.
         */
        if ((tm->cm_flags & MPR_CM_FLAGS_ERROR_MASK) != 0) {
-               mpr_dprint(sc, MPR_ERROR, "%s: cm_flags = %#x for LUN reset! "
+               mpr_dprint(sc, MPR_RECOVERY|MPR_ERROR,
+                   "%s: cm_flags = %#x for LUN reset! "
                    "This should not happen!\n", __func__, tm->cm_flags);
                mprsas_free_tm(sc, tm);
                return;
        }
 
        if (reply == NULL) {
-               mprsas_log_command(tm, MPR_RECOVERY, "NULL reset reply for tm "
-                   "%p\n", tm);
+               mpr_dprint(sc, MPR_RECOVERY, "NULL reset reply for tm %p\n",
+                   tm);
                if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) {
                        /* this completion was due to a reset, just cleanup */
+                       mpr_dprint(sc, MPR_RECOVERY, "Hardware undergoing "
+                           "reset, ignoring NULL LUN reset reply\n");
                        targ->tm = NULL;
                        mprsas_free_tm(sc, tm);
                }
                else {
                        /* we should have gotten a reply. */
+                       mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "NULL reply on "
+                           "LUN reset attempt, resetting controller\n");
                        mpr_reinit(sc);
                }
                return;
        }
 
-       mprsas_log_command(tm, MPR_RECOVERY,
+       mpr_dprint(sc, MPR_RECOVERY,
            "logical unit reset status 0x%x code 0x%x count %u\n",
            le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
            le32toh(reply->TerminationCount));
-               
-       /* See if there are any outstanding commands for this LUN.
+
+       /*
+        * See if there are any outstanding commands for this LUN.
         * This could be made more efficient by using a per-LU data
         * structure of some sort.
         */
@@ -1322,34 +1328,36 @@ mprsas_logical_unit_reset_complete(struct mpr_softc *s
        }
 
        if (cm_count == 0) {
-               mprsas_log_command(tm, MPR_RECOVERY|MPR_INFO,
-                   "logical unit %u finished recovery after reset\n",
-                   tm->cm_lun, tm);
+               mpr_dprint(sc, MPR_RECOVERY|MPR_INFO,
+                   "Finished recovery after LUN reset for target %u\n",
+                   targ->tid);
 
-               mprsas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, 
+               mprsas_announce_reset(sc, AC_SENT_BDR, targ->tid, 
                    tm->cm_lun);
 
-               /* we've finished recovery for this logical unit.  check and
+               /*
+                * We've finished recovery for this logical unit.  check and
                 * see if some other logical unit has a timedout command
                 * that needs to be processed.
                 */
                cm = TAILQ_FIRST(&targ->timedout_commands);
                if (cm) {
+                       mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                          "More commands to abort for target %u\n", targ->tid);
                        mprsas_send_abort(sc, tm, cm);
-               }
-               else {
+               } else {
                        targ->tm = NULL;
                        mprsas_free_tm(sc, tm);
                }
-       }
-       else {
+       } else {
                /* if we still have commands for this LUN, the reset
                 * effectively failed, regardless of the status reported.
                 * Escalate to a target reset.
                 */
-               mprsas_log_command(tm, MPR_RECOVERY,
-                   "logical unit reset complete for tm %p, but still have %u "
-                   "command(s)\n", tm, cm_count);
+               mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                   "logical unit reset complete for target %u, but still "
+                   "have %u command(s), sending target reset\n", targ->tid,
+                   cm_count);
                mprsas_send_reset(sc, tm,
                    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
        }
@@ -1381,46 +1389,53 @@ mprsas_target_reset_complete(struct mpr_softc *sc, str
        }
 
        if (reply == NULL) {
-               mprsas_log_command(tm, MPR_RECOVERY, "NULL reset reply for tm "
-                   "%p\n", tm);
+               mpr_dprint(sc, MPR_RECOVERY,
+                   "NULL target reset reply for tm %p TaskMID %u\n",
+                   tm, le16toh(req->TaskMID));
                if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) {
                        /* this completion was due to a reset, just cleanup */
+                       mpr_dprint(sc, MPR_RECOVERY, "Hardware undergoing "
+                           "reset, ignoring NULL target reset reply\n");
                        targ->tm = NULL;
                        mprsas_free_tm(sc, tm);
                }
                else {
                        /* we should have gotten a reply. */
+                       mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "NULL reply on "
+                           "target reset attempt, resetting controller\n");
                        mpr_reinit(sc);
                }
                return;
        }
 
-       mprsas_log_command(tm, MPR_RECOVERY,
+       mpr_dprint(sc, MPR_RECOVERY,
            "target reset status 0x%x code 0x%x count %u\n",
            le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
            le32toh(reply->TerminationCount));
 
        if (targ->outstanding == 0) {
-               /* we've finished recovery for this target and all
+               /*
+                * We've finished recovery for this target and all
                 * of its logical units.
                 */
-               mprsas_log_command(tm, MPR_RECOVERY|MPR_INFO,
-                   "recovery finished after target reset\n");
+               mpr_dprint(sc, MPR_RECOVERY|MPR_INFO,
+                   "Finished reset recovery for target %u\n", targ->tid);
 
                mprsas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid,
                    CAM_LUN_WILDCARD);
 
                targ->tm = NULL;
                mprsas_free_tm(sc, tm);
-       }
-       else {
-               /* after a target reset, if this target still has
+       } else {
+               /*
+                * After a target reset, if this target still has
                 * outstanding commands, the reset effectively failed,
                 * regardless of the status reported.  escalate.
                 */
-               mprsas_log_command(tm, MPR_RECOVERY,
-                   "target reset complete for tm %p, but still have %u "
-                   "command(s)\n", tm, targ->outstanding);
+               mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                   "Target reset complete for target %u, but still have %u "
+                   "command(s), resetting controller\n", targ->tid,
+                   targ->outstanding);
                mpr_reinit(sc);
        }
 }
@@ -1450,20 +1465,20 @@ mprsas_send_reset(struct mpr_softc *sc, struct mpr_com
                /* XXX Need to handle invalid LUNs */
                MPR_SET_LUN(req->LUN, tm->cm_lun);
                tm->cm_targ->logical_unit_resets++;
-               mprsas_log_command(tm, MPR_RECOVERY|MPR_INFO,
-                   "sending logical unit reset\n");
+               mpr_dprint(sc, MPR_RECOVERY|MPR_INFO,
+                   "Sending logical unit reset to target %u lun %d\n",
+                   target->tid, tm->cm_lun);
                tm->cm_complete = mprsas_logical_unit_reset_complete;
                mprsas_prepare_for_tm(sc, tm, target, tm->cm_lun);
-       }
-       else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
+       } else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
                /*
                 * Target reset method =
                 *     SAS Hard Link Reset / SATA Link Reset
                 */
                req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
                tm->cm_targ->target_resets++;
-               mprsas_log_command(tm, MPR_RECOVERY|MPR_INFO,
-                   "sending target reset\n");
+               mpr_dprint(sc, MPR_RECOVERY|MPR_INFO,
+                   "Sending target reset to target %u\n", target->tid);
                tm->cm_complete = mprsas_target_reset_complete;
                mprsas_prepare_for_tm(sc, tm, target, CAM_LUN_WILDCARD);
        }
@@ -1472,12 +1487,11 @@ mprsas_send_reset(struct mpr_softc *sc, struct mpr_com
                return -1;
        }
 
-       mpr_dprint(sc, MPR_INFO, "to target %u handle 0x%04x\n", target->tid,
-           target->handle);
        if (target->encl_level_valid) {
-               mpr_dprint(sc, MPR_INFO, "At enclosure level %d, slot %d, "
-                   "connector name (%4s)\n", target->encl_level,
-                   target->encl_slot, target->connector_name);
+               mpr_dprint(sc, MPR_RECOVERY|MPR_INFO,
+                   "At enclosure level %d, slot %d, connector name (%4s)\n",
+                   target->encl_level, target->encl_slot,
+                   target->connector_name);
        }
 
        tm->cm_data = NULL;
@@ -1490,7 +1504,7 @@ mprsas_send_reset(struct mpr_softc *sc, struct mpr_com
 
        err = mpr_map_command(sc, tm);
        if (err)
-               mprsas_log_command(tm, MPR_RECOVERY,
+               mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY,
                    "error %d sending reset type %u\n", err, type);
 
        return err;
@@ -1517,7 +1531,7 @@ mprsas_abort_complete(struct mpr_softc *sc, struct mpr
         * task management commands don't have S/G lists.
         */
        if ((tm->cm_flags & MPR_CM_FLAGS_ERROR_MASK) != 0) {
-               mprsas_log_command(tm, MPR_RECOVERY,
+               mpr_dprint(sc, MPR_RECOVERY|MPR_ERROR,
                    "cm_flags = %#x for abort %p TaskMID %u!\n", 
                    tm->cm_flags, tm, le16toh(req->TaskMID));
                mprsas_free_tm(sc, tm);
@@ -1525,22 +1539,25 @@ mprsas_abort_complete(struct mpr_softc *sc, struct mpr
        }
 
        if (reply == NULL) {
-               mprsas_log_command(tm, MPR_RECOVERY,
+               mpr_dprint(sc, MPR_RECOVERY,
                    "NULL abort reply for tm %p TaskMID %u\n", 
                    tm, le16toh(req->TaskMID));
                if ((sc->mpr_flags & MPR_FLAGS_DIAGRESET) != 0) {
                        /* this completion was due to a reset, just cleanup */
+                       mpr_dprint(sc, MPR_RECOVERY, "Hardware undergoing "
+                           "reset, ignoring NULL abort reply\n");
                        targ->tm = NULL;
                        mprsas_free_tm(sc, tm);
-               }
-               else {
+               } else {
                        /* we should have gotten a reply. */
+                       mpr_dprint(sc, MPR_INFO|MPR_RECOVERY, "NULL reply on "
+                           "abort attempt, resetting controller\n");
                        mpr_reinit(sc);
                }
                return;
        }
 
-       mprsas_log_command(tm, MPR_RECOVERY,
+       mpr_dprint(sc, MPR_RECOVERY,
            "abort TaskMID %u status 0x%x code 0x%x count %u\n",
            le16toh(req->TaskMID),
            le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
@@ -1548,31 +1565,27 @@ mprsas_abort_complete(struct mpr_softc *sc, struct mpr
 
        cm = TAILQ_FIRST(&tm->cm_targ->timedout_commands);
        if (cm == NULL) {
-               /* if there are no more timedout commands, we're done with
+               /*
+                * if there are no more timedout commands, we're done with
                 * error recovery for this target.
                 */
-               mprsas_log_command(tm, MPR_RECOVERY,
-                   "finished recovery after aborting TaskMID %u\n",
-                   le16toh(req->TaskMID));
-
+               mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                   "Finished abort recovery for target %u\n", targ->tid);
                targ->tm = NULL;
                mprsas_free_tm(sc, tm);
-       }
-       else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) {
+       } else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) {
                /* abort success, but we have more timedout commands to abort */
-               mprsas_log_command(tm, MPR_RECOVERY,
-                   "continuing recovery after aborting TaskMID %u\n",
-                   le16toh(req->TaskMID));
-               
+               mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                   "Continuing abort recovery for target %u\n", targ->tid);
                mprsas_send_abort(sc, tm, cm);
-       }
-       else {
-               /* we didn't get a command completion, so the abort
+       } else {
+               /*
+                * we didn't get a command completion, so the abort
                 * failed as far as we're concerned.  escalate.
                 */
-               mprsas_log_command(tm, MPR_RECOVERY,
-                   "abort failed for TaskMID %u tm %p\n",
-                   le16toh(req->TaskMID), tm);
+               mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                   "Abort failed for target %u, sending logical unit reset\n",
+                   targ->tid);
 
                mprsas_send_reset(sc, tm, 
                    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET);
@@ -1591,7 +1604,8 @@ mprsas_send_abort(struct mpr_softc *sc, struct mpr_com
 
        targ = cm->cm_targ;
        if (targ->handle == 0) {
-               mpr_dprint(sc, MPR_ERROR,"%s null devhandle for target_id %d\n",
+               mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY,
+                  "%s null devhandle for target_id %d\n",
                    __func__, cm->cm_ccb->ccb_h.target_id);
                return -1;
        }
@@ -1622,13 +1636,11 @@ mprsas_send_abort(struct mpr_softc *sc, struct mpr_com
 
        targ->aborts++;
 
-       mpr_dprint(sc, MPR_INFO, "Sending reset from %s for target ID %d\n",
-           __func__, targ->tid);
        mprsas_prepare_for_tm(sc, tm, targ, tm->cm_lun);
 
        err = mpr_map_command(sc, tm);
        if (err)
-               mpr_dprint(sc, MPR_RECOVERY,
+               mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY,
                    "error %d sending abort for cm %p SMID %u\n",
                    err, cm, req->TaskMID);
        return err;
@@ -1637,17 +1649,21 @@ mprsas_send_abort(struct mpr_softc *sc, struct mpr_com
 static void
 mprsas_scsiio_timeout(void *data)
 {
+       sbintime_t elapsed, now;
+       union ccb *ccb;
        struct mpr_softc *sc;
        struct mpr_command *cm;
        struct mprsas_target *targ;
 
        cm = (struct mpr_command *)data;
        sc = cm->cm_sc;
+       ccb = cm->cm_ccb;
+       now = sbinuptime();
 
        MPR_FUNCTRACE(sc);
        mtx_assert(&sc->mpr_mtx, MA_OWNED);
 
-       mpr_dprint(sc, MPR_XINFO, "Timeout checking cm %p\n", cm);
+       mpr_dprint(sc, MPR_XINFO|MPR_RECOVERY, "Timeout checking cm %p\n", cm);
 
        /*
         * Run the interrupt handler to make sure it's not pending.  This
@@ -1669,13 +1685,15 @@ mprsas_scsiio_timeout(void *data)
        targ = cm->cm_targ;
        targ->timeouts++;
 
-       mprsas_log_command(cm, MPR_ERROR, "command timeout %d cm %p target "
-           "%u, handle(0x%04x)\n", cm->cm_ccb->ccb_h.timeout, cm, targ->tid,
-           targ->handle);
+       elapsed = now - ccb->ccb_h.qos.sim_data;
+       mprsas_log_command(cm, MPR_INFO|MPR_RECOVERY,
+           "Command timeout on target %u(0x%04x), %d set, %d.%d elapsed\n",
+           targ->tid, targ->handle, ccb->ccb_h.timeout,
+           sbintime_getsec(elapsed), elapsed & 0xffffffff);
        if (targ->encl_level_valid) {
-               mpr_dprint(sc, MPR_ERROR, "At enclosure level %d, slot %d, "
-                   "connector name (%4s)\n", targ->encl_level, targ->encl_slot,
-                   targ->connector_name);
+               mpr_dprint(sc, MPR_INFO|MPR_RECOVERY,
+                   "At enclosure level %d, slot %d, connector name (%4s)\n",
+                   targ->encl_level, targ->encl_slot, targ->connector_name);
        }
 
        /* XXX first, check the firmware state, to see if it's still
@@ -1693,10 +1711,13 @@ mprsas_scsiio_timeout(void *data)
                    "processing by tm %p\n", cm, targ->tm);
        }
        else if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
-               mpr_dprint(sc, MPR_RECOVERY, "timedout cm %p allocated tm %p\n",
-                   cm, targ->tm);
 
                /* start recovery by aborting the first timedout command */
+               mpr_dprint(sc, MPR_RECOVERY|MPR_INFO,
+                   "Sending abort to target %u for SMID %d\n", targ->tid,
+                   cm->cm_desc.Default.SMID);
+               mpr_dprint(sc, MPR_RECOVERY, "timedout cm %p allocated tm %p\n",
+                   cm, targ->tm);
                mprsas_send_abort(sc, targ->tm, cm);
        }
        else {
@@ -1709,8 +1730,8 @@ mprsas_scsiio_timeout(void *data)
                 * more credits than disks in an enclosure, and limit
                 * ourselves to one TM per target for recovery.
                 */
-               mpr_dprint(sc, MPR_RECOVERY, "timedout cm %p failed to "
-                   "allocate a tm\n", cm);
+               mpr_dprint(sc, MPR_ERROR|MPR_RECOVERY,
+                   "timedout cm %p failed to allocate a tm\n", cm);
        }
 }
 
@@ -1843,6 +1864,7 @@ mprsas_build_nvme_unmap(struct mpr_softc *sc, struct m
        cm->cm_desc.Default.RequestFlags =
            MPI26_REQ_DESCRIPT_FLAGS_PCIE_ENCAPSULATED;
 
+       csio->ccb_h.qos.sim_data = sbinuptime();
 #if __FreeBSD_version >= 1000029
        callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0,
            mprsas_scsiio_timeout, cm, 0);
@@ -2161,6 +2183,7 @@ mprsas_action_scsiio(struct mprsas_softc *sassc, union
                        cm->cm_desc.SCSIIO.DevHandle = htole16(targ->handle);
        }
 
+       csio->ccb_h.qos.sim_data = sbinuptime();
 #if __FreeBSD_version >= 1000029
        callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0,
            mprsas_scsiio_timeout, cm, 0);
@@ -2936,9 +2959,14 @@ mprsas_scsiio_complete(struct mpr_softc *sc, struct mp
                 * avoiding getting into an infinite retry loop.
                 */
                mprsas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
-               mprsas_log_command(cm, MPR_INFO,
-                   "terminated ioc %x loginfo %x scsi %x state %x xfer %u\n",
-                   le16toh(rep->IOCStatus), le32toh(rep->IOCLogInfo),
+               mpr_dprint(sc, MPR_INFO,
+                   "Controller reported %s status for target %u SMID %u, "
+                   "loginfo %x\n", ((rep->IOCStatus & MPI2_IOCSTATUS_MASK) ==
+                   MPI2_IOCSTATUS_SCSI_IOC_TERMINATED) ? "IOC_TERMINATED" :
+                   "EXT_TERMINATED", target_id, cm->cm_desc.Default.SMID,
+                   le32toh(rep->IOCLogInfo));
+               mpr_dprint(sc, MPR_XINFO,
+                   "SCSIStatus %x SCSIState %x xfercount %u\n",
                    rep->SCSIStatus, rep->SCSIState,
                    le32toh(rep->TransferCount));
                break;

Modified: head/sys/dev/mps/mps_sas.c
==============================================================================
--- head/sys/dev/mps/mps_sas.c  Wed Sep  6 07:19:22 2017        (r323214)
+++ head/sys/dev/mps/mps_sas.c  Wed Sep  6 09:19:54 2017        (r323215)
@@ -1227,33 +1227,39 @@ mpssas_logical_unit_reset_complete(struct mps_softc *s
         * XXXSL So should it be an assertion?
         */
        if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
-               mps_dprint(sc, MPS_ERROR, "%s: cm_flags = %#x for LUN reset! "
-                          "This should not happen!\n", __func__, tm->cm_flags);
+               mps_dprint(sc, MPS_RECOVERY|MPS_ERROR,
+                   "%s: cm_flags = %#x for LUN reset! "
+                  "This should not happen!\n", __func__, tm->cm_flags);
                mpssas_free_tm(sc, tm);
                return;
        }
 
        if (reply == NULL) {
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "NULL reset reply for tm %p\n", tm);
+               mps_dprint(sc, MPS_RECOVERY, "NULL reset reply for tm %p\n",
+                   tm);
                if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
                        /* this completion was due to a reset, just cleanup */
+                       mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing "
+                           "reset, ignoring NULL LUN reset reply\n");
                        targ->tm = NULL;
                        mpssas_free_tm(sc, tm);
                }
                else {
                        /* we should have gotten a reply. */
+                       mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on "
+                           "LUN reset attempt, resetting controller\n");
                        mps_reinit(sc);
                }
                return;
        }
 
-       mpssas_log_command(tm, MPS_RECOVERY,
+       mps_dprint(sc, MPS_RECOVERY,
            "logical unit reset status 0x%x code 0x%x count %u\n",
            le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
            le32toh(reply->TerminationCount));
                
-       /* See if there are any outstanding commands for this LUN.
+       /*
+        * See if there are any outstanding commands for this LUN.
         * This could be made more efficient by using a per-LU data
         * structure of some sort.
         */
@@ -1263,34 +1269,37 @@ mpssas_logical_unit_reset_complete(struct mps_softc *s
        }
 
        if (cm_count == 0) {
-               mpssas_log_command(tm, MPS_RECOVERY|MPS_INFO,
-                   "logical unit %u finished recovery after reset\n",
-                   tm->cm_lun, tm);
+               mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
+                   "Finished recovery after LUN reset for target %u\n",
+                   targ->tid);
 
-               mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid, 
-                   tm->cm_lun);
+               mpssas_announce_reset(sc, AC_SENT_BDR, targ->tid, tm->cm_lun);
 
-               /* we've finished recovery for this logical unit.  check and
+               /*
+                * We've finished recovery for this logical unit.  check and
                 * see if some other logical unit has a timedout command
                 * that needs to be processed.
                 */
                cm = TAILQ_FIRST(&targ->timedout_commands);
                if (cm) {
+                       mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
+                           "More commands to abort for target %u\n",
+                           targ->tid);
                        mpssas_send_abort(sc, tm, cm);
-               }
-               else {
+               } else {
                        targ->tm = NULL;
                        mpssas_free_tm(sc, tm);
                }
-       }
-       else {
-               /* if we still have commands for this LUN, the reset
+       } else {
+               /*
+                * If we still have commands for this LUN, the reset
                 * effectively failed, regardless of the status reported.
                 * Escalate to a target reset.
                 */
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "logical unit reset complete for tm %p, but still have %u 
command(s)\n",
-                   tm, cm_count);
+               mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
+                   "logical unit reset complete for target %u, but still "
+                   "have %u command(s), sending target reset\n", targ->tid,
+                   cm_count);
                mpssas_send_reset(sc, tm,
                    MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
        }
@@ -1322,21 +1331,25 @@ mpssas_target_reset_complete(struct mps_softc *sc, str
        }
 
        if (reply == NULL) {
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "NULL reset reply for tm %p\n", tm);
+               mps_dprint(sc, MPS_RECOVERY,
+                   "NULL target reset reply for tm %pi TaskMID %u\n",
+                   tm, le16toh(req->TaskMID));
                if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
                        /* this completion was due to a reset, just cleanup */
+                       mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing "
+                           "reset, ignoring NULL target reset reply\n");
                        targ->tm = NULL;
                        mpssas_free_tm(sc, tm);
-               }
-               else {
+               } else {
                        /* we should have gotten a reply. */
+                       mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on "
+                           "target reset attempt, resetting controller\n");
                        mps_reinit(sc);
                }
                return;
        }
 
-       mpssas_log_command(tm, MPS_RECOVERY,
+       mps_dprint(sc, MPS_RECOVERY,
            "target reset status 0x%x code 0x%x count %u\n",
            le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
            le32toh(reply->TerminationCount));
@@ -1345,23 +1358,24 @@ mpssas_target_reset_complete(struct mps_softc *sc, str
                /* we've finished recovery for this target and all
                 * of its logical units.
                 */
-               mpssas_log_command(tm, MPS_RECOVERY|MPS_INFO,
-                   "recovery finished after target reset\n");
+               mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
+                   "Finished reset recovery for target %u\n", targ->tid);
 
                mpssas_announce_reset(sc, AC_SENT_BDR, tm->cm_targ->tid,
                    CAM_LUN_WILDCARD);
 
                targ->tm = NULL;
                mpssas_free_tm(sc, tm);
-       }
-       else {
-               /* after a target reset, if this target still has
+       } else {
+               /*
+                * After a target reset, if this target still has
                 * outstanding commands, the reset effectively failed,
                 * regardless of the status reported.  escalate.
                 */
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "target reset complete for tm %p, but still have %u 
command(s)\n", 
-                   tm, targ->outstanding);
+               mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
+                   "Target reset complete for target %u, but still have %u "
+                   "command(s), resetting controller\n", targ->tid,
+                   targ->outstanding);
                mps_reinit(sc);
        }
 }
@@ -1391,24 +1405,23 @@ mpssas_send_reset(struct mps_softc *sc, struct mps_com
                /* XXX Need to handle invalid LUNs */
                MPS_SET_LUN(req->LUN, tm->cm_lun);
                tm->cm_targ->logical_unit_resets++;
-               mpssas_log_command(tm, MPS_RECOVERY|MPS_INFO,
-                   "sending logical unit reset\n");
+               mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
+                   "Sending logical unit reset to target %u lun %d\n",
+                   target->tid, tm->cm_lun);
                tm->cm_complete = mpssas_logical_unit_reset_complete;
                mpssas_prepare_for_tm(sc, tm, target, tm->cm_lun);
-       }
-       else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
+       } else if (type == MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET) {
                /*
                 * Target reset method =
                 *      SAS Hard Link Reset / SATA Link Reset
                 */
                req->MsgFlags = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET;
                tm->cm_targ->target_resets++;
-               mpssas_log_command(tm, MPS_RECOVERY|MPS_INFO,
-                   "sending target reset\n");
+               mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
+                   "Sending target reset to target %u\n", target->tid);
                tm->cm_complete = mpssas_target_reset_complete;
                mpssas_prepare_for_tm(sc, tm, target, CAM_LUN_WILDCARD);
-       }
-       else {
+       } else {
                mps_dprint(sc, MPS_ERROR, "unexpected reset type 0x%x\n", type);
                return -1;
        }
@@ -1422,7 +1435,7 @@ mpssas_send_reset(struct mps_softc *sc, struct mps_com
 
        err = mps_map_command(sc, tm);
        if (err)
-               mpssas_log_command(tm, MPS_RECOVERY,
+               mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
                    "error %d sending reset type %u\n",
                    err, type);
 
@@ -1450,7 +1463,7 @@ mpssas_abort_complete(struct mps_softc *sc, struct mps
         * task management commands don't have S/G lists.
         */
        if ((tm->cm_flags & MPS_CM_FLAGS_ERROR_MASK) != 0) {
-               mpssas_log_command(tm, MPS_RECOVERY,
+               mps_dprint(sc, MPS_RECOVERY,
                    "cm_flags = %#x for abort %p TaskMID %u!\n", 
                    tm->cm_flags, tm, le16toh(req->TaskMID));
                mpssas_free_tm(sc, tm);
@@ -1458,22 +1471,25 @@ mpssas_abort_complete(struct mps_softc *sc, struct mps
        }
 
        if (reply == NULL) {
-               mpssas_log_command(tm, MPS_RECOVERY,
+               mps_dprint(sc, MPS_RECOVERY,
                    "NULL abort reply for tm %p TaskMID %u\n", 
                    tm, le16toh(req->TaskMID));
                if ((sc->mps_flags & MPS_FLAGS_DIAGRESET) != 0) {
                        /* this completion was due to a reset, just cleanup */
+                       mps_dprint(sc, MPS_RECOVERY, "Hardware undergoing "
+                           "reset, ignoring NULL abort reply\n");
                        targ->tm = NULL;
                        mpssas_free_tm(sc, tm);
-               }
-               else {
+               } else {
                        /* we should have gotten a reply. */
+                       mps_dprint(sc, MPS_INFO|MPS_RECOVERY, "NULL reply on "
+                           "abort attempt, resetting controller\n");
                        mps_reinit(sc);
                }
                return;
        }
 
-       mpssas_log_command(tm, MPS_RECOVERY,
+       mps_dprint(sc, MPS_RECOVERY,
            "abort TaskMID %u status 0x%x code 0x%x count %u\n",
            le16toh(req->TaskMID),
            le16toh(reply->IOCStatus), le32toh(reply->ResponseCode),
@@ -1481,31 +1497,28 @@ mpssas_abort_complete(struct mps_softc *sc, struct mps
 
        cm = TAILQ_FIRST(&tm->cm_targ->timedout_commands);
        if (cm == NULL) {
-               /* if there are no more timedout commands, we're done with
+               /*
+                * If there are no more timedout commands, we're done with
                 * error recovery for this target.
                 */
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "finished recovery after aborting TaskMID %u\n",
-                   le16toh(req->TaskMID));
+               mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
+                   "Finished abort recovery for target %u\n", targ->tid);
 
                targ->tm = NULL;
                mpssas_free_tm(sc, tm);
-       }
-       else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) {
+       } else if (le16toh(req->TaskMID) != cm->cm_desc.Default.SMID) {
                /* abort success, but we have more timedout commands to abort */
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "continuing recovery after aborting TaskMID %u\n",
-                   le16toh(req->TaskMID));
+               mps_dprint(sc, MPS_INFO|MPS_RECOVERY,
+                   "Continuing abort recovery for target %u\n", targ->tid);
                
                mpssas_send_abort(sc, tm, cm);
-       }
-       else {
+       } else {
                /* we didn't get a command completion, so the abort
                 * failed as far as we're concerned.  escalate.
                 */
-               mpssas_log_command(tm, MPS_RECOVERY,
-                   "abort failed for TaskMID %u tm %p\n",
-                   le16toh(req->TaskMID), tm);
+               mps_dprint(sc, MPS_RECOVERY,
+                   "Abort failed for target %u, sending logical unit reset\n",
+                   targ->tid);
 
                mpssas_send_reset(sc, tm, 
                    MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET);
@@ -1523,7 +1536,8 @@ mpssas_send_abort(struct mps_softc *sc, struct mps_com
 
        targ = cm->cm_targ;
        if (targ->handle == 0) {
-               mps_dprint(sc, MPS_ERROR,"%s null devhandle for target_id %d\n",
+               mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
+                   "%s null devhandle for target_id %d\n",
                    __func__, cm->cm_ccb->ccb_h.target_id);
                return -1;
        }
@@ -1553,13 +1567,11 @@ mpssas_send_abort(struct mps_softc *sc, struct mps_com
 
        targ->aborts++;
 
-       mps_dprint(sc, MPS_INFO, "Sending reset from %s for target ID %d\n",
-           __func__, targ->tid);
        mpssas_prepare_for_tm(sc, tm, targ, tm->cm_lun);
 
        err = mps_map_command(sc, tm);
        if (err)
-               mps_dprint(sc, MPS_RECOVERY,
+               mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
                    "error %d sending abort for cm %p SMID %u\n",
                    err, cm, req->TaskMID);
        return err;
@@ -1568,17 +1580,21 @@ mpssas_send_abort(struct mps_softc *sc, struct mps_com
 static void
 mpssas_scsiio_timeout(void *data)
 {
+       sbintime_t elapsed, now;
+       union ccb *ccb;
        struct mps_softc *sc;
        struct mps_command *cm;
        struct mpssas_target *targ;
 
        cm = (struct mps_command *)data;
        sc = cm->cm_sc;
+       ccb = cm->cm_ccb;
+       now = sbinuptime();
 
        MPS_FUNCTRACE(sc);
        mtx_assert(&sc->mps_mtx, MA_OWNED);
 
-       mps_dprint(sc, MPS_XINFO, "Timeout checking cm %p\n", sc);
+       mps_dprint(sc, MPS_XINFO|MPS_RECOVERY, "Timeout checking cm %p\n", sc);
 
        /*
         * Run the interrupt handler to make sure it's not pending.  This
@@ -1600,9 +1616,11 @@ mpssas_scsiio_timeout(void *data)
        targ = cm->cm_targ;
        targ->timeouts++;
 
-       mpssas_log_command(cm, MPS_ERROR, "command timeout %d cm %p target "
-           "%u, handle(0x%04x)\n", cm->cm_ccb->ccb_h.timeout, cm,  targ->tid,
-           targ->handle);
+       elapsed = now - ccb->ccb_h.qos.sim_data;
+       mpssas_log_command(cm, MPS_INFO|MPS_RECOVERY,
+           "Command timeout on target %u(0x%04x) %d set, %d.%d elapsed\n",
+           targ->tid, targ->handle, ccb->ccb_h.timeout,
+           sbintime_getsec(elapsed), elapsed & 0xffffffff);
 
        /* XXX first, check the firmware state, to see if it's still
         * operational.  if not, do a diag reset.
@@ -1618,15 +1636,16 @@ mpssas_scsiio_timeout(void *data)
                mps_dprint(sc, MPS_RECOVERY,
                    "queued timedout cm %p for processing by tm %p\n",
                    cm, targ->tm);
-       }
-       else if ((targ->tm = mpssas_alloc_tm(sc)) != NULL) {
+       } else if ((targ->tm = mpssas_alloc_tm(sc)) != NULL) {
+               mps_dprint(sc, MPS_RECOVERY|MPS_INFO,
+                   "Sending abort to target %u for SMID %d\n", targ->tid,
+                   cm->cm_desc.Default.SMID);
                mps_dprint(sc, MPS_RECOVERY, "timedout cm %p allocated tm %p\n",
                    cm, targ->tm);
 
                /* start recovery by aborting the first timedout command */
                mpssas_send_abort(sc, targ->tm, cm);
-       }
-       else {
+       } else {
                /* XXX queue this target up for recovery once a TM becomes
                 * available.  The firmware only has a limited number of
                 * HighPriority credits for the high priority requests used
@@ -1636,7 +1655,7 @@ mpssas_scsiio_timeout(void *data)
                 * more credits than disks in an enclosure, and limit
                 * ourselves to one TM per target for recovery.
                 */
-               mps_dprint(sc, MPS_RECOVERY,
+               mps_dprint(sc, MPS_ERROR|MPS_RECOVERY,
                    "timedout cm %p failed to allocate a tm\n", cm);
        }
 
@@ -1900,6 +1919,7 @@ mpssas_action_scsiio(struct mpssas_softc *sassc, union
        if (csio->bio != NULL)
                biotrack(csio->bio, __func__);
 #endif
+       csio->ccb_h.qos.sim_data = sbinuptime();
        callout_reset_sbt(&cm->cm_callout, SBT_1MS * ccb->ccb_h.timeout, 0,
            mpssas_scsiio_timeout, cm, 0);
 
@@ -2469,9 +2489,14 @@ mpssas_scsiio_complete(struct mps_softc *sc, struct mp
                 * avoiding getting into an infinite retry loop.
                 */
                mpssas_set_ccbstatus(ccb, CAM_REQ_CMP_ERR);
-               mpssas_log_command(cm, MPS_INFO,
-                   "terminated ioc %x loginfo %x scsi %x state %x xfer %u\n",
-                   le16toh(rep->IOCStatus), le32toh(rep->IOCLogInfo),
+               mps_dprint(sc, MPS_INFO,
+                   "Controller reported %s status for target %u SMID %u, "
+                   "loginfo %x\n", ((rep->IOCStatus & MPI2_IOCSTATUS_MASK) ==
+                   MPI2_IOCSTATUS_SCSI_IOC_TERMINATED) ? "IOC_TERMINATED" :
+                   "EXT_TERMINATED", target_id, cm->cm_desc.Default.SMID,
+                   le32toh(rep->IOCLogInfo));
+               mps_dprint(sc, MPS_XINFO,
+                   "SCSIStatus %x SCSIState %x xfercount %u\n",
                    rep->SCSIStatus, rep->SCSIState,
                    le32toh(rep->TransferCount));
                break;
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