The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/mpr/mpr_sas_lsi.c

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    1 /*-
    2  * Copyright (c) 2011-2015 LSI Corp.
    3  * Copyright (c) 2013-2016 Avago Technologies
    4  * Copyright 2000-2020 Broadcom Inc.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  *
   28  * Broadcom Inc. (LSI) MPT-Fusion Host Adapter FreeBSD
   29  */
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD$");
   33 
   34 /* Communications core for Avago Technologies (LSI) MPT3 */
   35 
   36 /* TODO Move headers to mprvar */
   37 #include <sys/types.h>
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <sys/kernel.h>
   41 #include <sys/selinfo.h>
   42 #include <sys/module.h>
   43 #include <sys/bus.h>
   44 #include <sys/conf.h>
   45 #include <sys/bio.h>
   46 #include <sys/malloc.h>
   47 #include <sys/uio.h>
   48 #include <sys/sysctl.h>
   49 #include <sys/endian.h>
   50 #include <sys/proc.h>
   51 #include <sys/queue.h>
   52 #include <sys/kthread.h>
   53 #include <sys/taskqueue.h>
   54 #include <sys/sbuf.h>
   55 #include <sys/reboot.h>
   56 
   57 #include <machine/bus.h>
   58 #include <machine/resource.h>
   59 #include <sys/rman.h>
   60 
   61 #include <machine/stdarg.h>
   62 
   63 #include <cam/cam.h>
   64 #include <cam/cam_ccb.h>
   65 #include <cam/cam_debug.h>
   66 #include <cam/cam_sim.h>
   67 #include <cam/cam_xpt_sim.h>
   68 #include <cam/cam_xpt_periph.h>
   69 #include <cam/cam_periph.h>
   70 #include <cam/scsi/scsi_all.h>
   71 #include <cam/scsi/scsi_message.h>
   72 
   73 #include <dev/mpr/mpi/mpi2_type.h>
   74 #include <dev/mpr/mpi/mpi2.h>
   75 #include <dev/mpr/mpi/mpi2_ioc.h>
   76 #include <dev/mpr/mpi/mpi2_sas.h>
   77 #include <dev/mpr/mpi/mpi2_pci.h>
   78 #include <dev/mpr/mpi/mpi2_cnfg.h>
   79 #include <dev/mpr/mpi/mpi2_init.h>
   80 #include <dev/mpr/mpi/mpi2_raid.h>
   81 #include <dev/mpr/mpi/mpi2_tool.h>
   82 #include <dev/mpr/mpr_ioctl.h>
   83 #include <dev/mpr/mprvar.h>
   84 #include <dev/mpr/mpr_table.h>
   85 #include <dev/mpr/mpr_sas.h>
   86 
   87 /* For Hashed SAS Address creation for SATA Drives */
   88 #define MPT2SAS_SN_LEN 20
   89 #define MPT2SAS_MN_LEN 40
   90 
   91 struct mpr_fw_event_work {
   92         u16                     event;
   93         void                    *event_data;
   94         TAILQ_ENTRY(mpr_fw_event_work)  ev_link;
   95 };
   96 
   97 union _sata_sas_address {
   98         u8 wwid[8];
   99         struct {
  100                 u32 high;
  101                 u32 low;
  102         } word;
  103 };
  104 
  105 /*
  106  * define the IDENTIFY DEVICE structure
  107  */
  108 struct _ata_identify_device_data {
  109         u16 reserved1[10];      /* 0-9 */
  110         u16 serial_number[10];  /* 10-19 */
  111         u16 reserved2[7];       /* 20-26 */
  112         u16 model_number[20];   /* 27-46*/
  113         u16 reserved3[170];     /* 47-216 */
  114         u16 rotational_speed;   /* 217 */
  115         u16 reserved4[38];      /* 218-255 */
  116 };
  117 static u32 event_count;
  118 static void mprsas_fw_work(struct mpr_softc *sc,
  119     struct mpr_fw_event_work *fw_event);
  120 static void mprsas_fw_event_free(struct mpr_softc *,
  121     struct mpr_fw_event_work *);
  122 static int mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate);
  123 static int mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle,
  124     u8 linkrate);
  125 static int mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
  126     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
  127     u32 devinfo);
  128 static void mprsas_ata_id_timeout(struct mpr_softc *, struct mpr_command *);
  129 int mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
  130     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
  131 static int mprsas_volume_add(struct mpr_softc *sc,
  132     u16 handle);
  133 static void mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto);
  134 static void mprsas_stop_unit_done(struct cam_periph *periph,
  135     union ccb *done_ccb);
  136 
  137 void
  138 mprsas_evt_handler(struct mpr_softc *sc, uintptr_t data,
  139     MPI2_EVENT_NOTIFICATION_REPLY *event)
  140 {
  141         struct mpr_fw_event_work *fw_event;
  142         u16 sz;
  143 
  144         mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
  145         MPR_DPRINT_EVENT(sc, sas, event);
  146         mprsas_record_event(sc, event);
  147 
  148         fw_event = malloc(sizeof(struct mpr_fw_event_work), M_MPR,
  149              M_ZERO|M_NOWAIT);
  150         if (!fw_event) {
  151                 printf("%s: allocate failed for fw_event\n", __func__);
  152                 return;
  153         }
  154         sz = le16toh(event->EventDataLength) * 4;
  155         fw_event->event_data = malloc(sz, M_MPR, M_ZERO|M_NOWAIT);
  156         if (!fw_event->event_data) {
  157                 printf("%s: allocate failed for event_data\n", __func__);
  158                 free(fw_event, M_MPR);
  159                 return;
  160         }
  161 
  162         bcopy(event->EventData, fw_event->event_data, sz);
  163         fw_event->event = event->Event;
  164         if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
  165             event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
  166             event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
  167             event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
  168             sc->track_mapping_events)
  169                 sc->pending_map_events++;
  170 
  171         /*
  172          * When wait_for_port_enable flag is set, make sure that all the events
  173          * are processed. Increment the startup_refcount and decrement it after
  174          * events are processed.
  175          */
  176         if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
  177             event->Event == MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST ||
  178             event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
  179             sc->wait_for_port_enable)
  180                 mprsas_startup_increment(sc->sassc);
  181 
  182         TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
  183         taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
  184 }
  185 
  186 static void
  187 mprsas_fw_event_free(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
  188 {
  189 
  190         free(fw_event->event_data, M_MPR);
  191         free(fw_event, M_MPR);
  192 }
  193 
  194 /**
  195  * _mpr_fw_work - delayed task for processing firmware events
  196  * @sc: per adapter object
  197  * @fw_event: The fw_event_work object
  198  * Context: user.
  199  *
  200  * Return nothing.
  201  */
  202 static void
  203 mprsas_fw_work(struct mpr_softc *sc, struct mpr_fw_event_work *fw_event)
  204 {
  205         struct mprsas_softc *sassc;
  206         sassc = sc->sassc;
  207 
  208         mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
  209             event_count++, __func__, fw_event->event);
  210         switch (fw_event->event) {
  211         case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST: 
  212         {
  213                 MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
  214                 MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
  215                 uint8_t i;
  216 
  217                 data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
  218                     fw_event->event_data;
  219 
  220                 mpr_mapping_topology_change_event(sc, fw_event->event_data);
  221 
  222                 for (i = 0; i < data->NumEntries; i++) {
  223                         phy = &data->PHY[i];
  224                         switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
  225                         case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
  226                                 if (mprsas_add_device(sc,
  227                                     le16toh(phy->AttachedDevHandle),
  228                                     phy->LinkRate)) {
  229                                         mpr_dprint(sc, MPR_ERROR, "%s: "
  230                                             "failed to add device with handle "
  231                                             "0x%x\n", __func__,
  232                                             le16toh(phy->AttachedDevHandle));
  233                                         mprsas_prepare_remove(sassc, le16toh(
  234                                             phy->AttachedDevHandle));
  235                                 }
  236                                 break;
  237                         case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
  238                                 mprsas_prepare_remove(sassc, le16toh(
  239                                     phy->AttachedDevHandle));
  240                                 break;
  241                         case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
  242                         case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
  243                         case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
  244                         default:
  245                                 break;
  246                         }
  247                 }
  248                 /*
  249                  * refcount was incremented for this event in
  250                  * mprsas_evt_handler.  Decrement it here because the event has
  251                  * been processed.
  252                  */
  253                 mprsas_startup_decrement(sassc);
  254                 break;
  255         }
  256         case MPI2_EVENT_SAS_DISCOVERY:
  257         {
  258                 MPI2_EVENT_DATA_SAS_DISCOVERY *data;
  259 
  260                 data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
  261 
  262                 if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
  263                         mpr_dprint(sc, MPR_TRACE,"SAS discovery start event\n");
  264                 if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
  265                         mpr_dprint(sc, MPR_TRACE,"SAS discovery stop event\n");
  266                         sassc->flags &= ~MPRSAS_IN_DISCOVERY;
  267                         mprsas_discovery_end(sassc);
  268                 }
  269                 break;
  270         }
  271         case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
  272         {
  273                 Mpi2EventDataSasEnclDevStatusChange_t *data;
  274                 data = (Mpi2EventDataSasEnclDevStatusChange_t *)
  275                     fw_event->event_data;
  276                 mpr_mapping_enclosure_dev_status_change_event(sc,
  277                     fw_event->event_data);
  278                 break;
  279         }
  280         case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
  281         {
  282                 Mpi2EventIrConfigElement_t *element;
  283                 int i;
  284                 u8 foreign_config, reason;
  285                 u16 elementType;
  286                 Mpi2EventDataIrConfigChangeList_t *event_data;
  287                 struct mprsas_target *targ;
  288                 unsigned int id;
  289 
  290                 event_data = fw_event->event_data;
  291                 foreign_config = (le32toh(event_data->Flags) &
  292                     MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
  293 
  294                 element =
  295                     (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
  296                 id = mpr_mapping_get_raid_tid_from_handle(sc,
  297                     element->VolDevHandle);
  298 
  299                 mpr_mapping_ir_config_change_event(sc, event_data);
  300                 for (i = 0; i < event_data->NumElements; i++, element++) {
  301                         reason = element->ReasonCode;
  302                         elementType = le16toh(element->ElementFlags) &
  303                             MPI2_EVENT_IR_CHANGE_EFLAGS_ELEMENT_TYPE_MASK;
  304                         /*
  305                          * check for element type of Phys Disk or Hot Spare
  306                          */
  307                         if ((elementType != 
  308                             MPI2_EVENT_IR_CHANGE_EFLAGS_VOLPHYSDISK_ELEMENT)
  309                             && (elementType !=
  310                             MPI2_EVENT_IR_CHANGE_EFLAGS_HOTSPARE_ELEMENT))
  311                                 // do next element
  312                                 goto skip_fp_send;
  313 
  314                         /*
  315                          * check for reason of Hide, Unhide, PD Created, or PD
  316                          * Deleted
  317                          */
  318                         if ((reason != MPI2_EVENT_IR_CHANGE_RC_HIDE) &&
  319                             (reason != MPI2_EVENT_IR_CHANGE_RC_UNHIDE) &&
  320                             (reason != MPI2_EVENT_IR_CHANGE_RC_PD_CREATED) &&
  321                             (reason != MPI2_EVENT_IR_CHANGE_RC_PD_DELETED))
  322                                 goto skip_fp_send;
  323 
  324                         // check for a reason of Hide or PD Created
  325                         if ((reason == MPI2_EVENT_IR_CHANGE_RC_HIDE) ||
  326                             (reason == MPI2_EVENT_IR_CHANGE_RC_PD_CREATED))
  327                         {
  328                                 // build RAID Action message
  329                                 Mpi2RaidActionRequest_t *action;
  330                                 Mpi2RaidActionReply_t *reply = NULL;
  331                                 struct mpr_command *cm;
  332                                 int error = 0;
  333                                 if ((cm = mpr_alloc_command(sc)) == NULL) {
  334                                         printf("%s: command alloc failed\n",
  335                                             __func__);
  336                                         return;
  337                                 }
  338 
  339                                 mpr_dprint(sc, MPR_EVENT, "Sending FP action "
  340                                     "from "
  341                                     "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST "
  342                                     ":\n");
  343                                 action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
  344                                 action->Function = MPI2_FUNCTION_RAID_ACTION;
  345                                 action->Action =
  346                                     MPI2_RAID_ACTION_PHYSDISK_HIDDEN;
  347                                 action->PhysDiskNum = element->PhysDiskNum;
  348                                 cm->cm_desc.Default.RequestFlags =
  349                                     MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
  350                                 error = mpr_request_polled(sc, &cm);
  351                                 if (cm != NULL)
  352                                         reply = (Mpi2RaidActionReply_t *)
  353                                             cm->cm_reply;
  354                                 if (error || (reply == NULL)) {
  355                                         /* FIXME */
  356                                         /*
  357                                          * If the poll returns error then we
  358                                          * need to do diag reset
  359                                          */
  360                                         printf("%s: poll for page completed "
  361                                             "with error %d", __func__, error);
  362                                 }
  363                                 if (reply && (le16toh(reply->IOCStatus) &
  364                                     MPI2_IOCSTATUS_MASK) !=
  365                                     MPI2_IOCSTATUS_SUCCESS) {
  366                                         mpr_dprint(sc, MPR_ERROR, "%s: error "
  367                                             "sending RaidActionPage; "
  368                                             "iocstatus = 0x%x\n", __func__,
  369                                             le16toh(reply->IOCStatus));
  370                                 }
  371 
  372                                 if (cm)
  373                                         mpr_free_command(sc, cm);
  374                         }
  375 skip_fp_send:
  376                         mpr_dprint(sc, MPR_EVENT, "Received "
  377                             "MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST Reason "
  378                             "code %x:\n", element->ReasonCode);
  379                         switch (element->ReasonCode) {
  380                         case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
  381                         case MPI2_EVENT_IR_CHANGE_RC_ADDED:
  382                                 if (!foreign_config) {
  383                                         if (mprsas_volume_add(sc,
  384                                             le16toh(element->VolDevHandle))) {
  385                                                 printf("%s: failed to add RAID "
  386                                                     "volume with handle 0x%x\n",
  387                                                     __func__, le16toh(element->
  388                                                     VolDevHandle));
  389                                         }
  390                                 }
  391                                 break;
  392                         case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
  393                         case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
  394                                 /*
  395                                  * Rescan after volume is deleted or removed.
  396                                  */
  397                                 if (!foreign_config) {
  398                                         if (id == MPR_MAP_BAD_ID) {
  399                                                 printf("%s: could not get ID "
  400                                                     "for volume with handle "
  401                                                     "0x%04x\n", __func__,
  402                                                     le16toh(element->
  403                                                     VolDevHandle));
  404                                                 break;
  405                                         }
  406                                         
  407                                         targ = &sassc->targets[id];
  408                                         targ->handle = 0x0;
  409                                         targ->encl_slot = 0x0;
  410                                         targ->encl_handle = 0x0;
  411                                         targ->encl_level_valid = 0x0;
  412                                         targ->encl_level = 0x0;
  413                                         targ->connector_name[0] = ' ';
  414                                         targ->connector_name[1] = ' ';
  415                                         targ->connector_name[2] = ' ';
  416                                         targ->connector_name[3] = ' ';
  417                                         targ->exp_dev_handle = 0x0;
  418                                         targ->phy_num = 0x0;
  419                                         targ->linkrate = 0x0;
  420                                         mprsas_rescan_target(sc, targ);
  421                                         printf("RAID target id 0x%x removed\n",
  422                                             targ->tid);
  423                                 }
  424                                 break;
  425                         case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
  426                         case MPI2_EVENT_IR_CHANGE_RC_HIDE:
  427                                 /*
  428                                  * Phys Disk of a volume has been created.  Hide
  429                                  * it from the OS.
  430                                  */
  431                                 targ = mprsas_find_target_by_handle(sassc, 0,
  432                                     element->PhysDiskDevHandle);
  433                                 if (targ == NULL) 
  434                                         break;
  435                                 targ->flags |= MPR_TARGET_FLAGS_RAID_COMPONENT;
  436                                 mprsas_rescan_target(sc, targ);
  437                                 break;
  438                         case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
  439                                 /*
  440                                  * Phys Disk of a volume has been deleted.
  441                                  * Expose it to the OS.
  442                                  */
  443                                 if (mprsas_add_device(sc,
  444                                     le16toh(element->PhysDiskDevHandle), 0)) {
  445                                         printf("%s: failed to add device with "
  446                                             "handle 0x%x\n", __func__,
  447                                             le16toh(element->
  448                                             PhysDiskDevHandle));
  449                                         mprsas_prepare_remove(sassc,
  450                                             le16toh(element->
  451                                             PhysDiskDevHandle));
  452                                 }
  453                                 break;
  454                         }
  455                 }
  456                 /*
  457                  * refcount was incremented for this event in
  458                  * mprsas_evt_handler.  Decrement it here because the event has
  459                  * been processed.
  460                  */
  461                 mprsas_startup_decrement(sassc);
  462                 break;
  463         }
  464         case MPI2_EVENT_IR_VOLUME:
  465         {
  466                 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
  467 
  468                 /*
  469                  * Informational only.
  470                  */
  471                 mpr_dprint(sc, MPR_EVENT, "Received IR Volume event:\n");
  472                 switch (event_data->ReasonCode) {
  473                 case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
  474                         mpr_dprint(sc, MPR_EVENT, "   Volume Settings "
  475                             "changed from 0x%x to 0x%x for Volome with "
  476                             "handle 0x%x", le32toh(event_data->PreviousValue),
  477                             le32toh(event_data->NewValue),
  478                             le16toh(event_data->VolDevHandle));
  479                         break;
  480                 case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
  481                         mpr_dprint(sc, MPR_EVENT, "   Volume Status "
  482                             "changed from 0x%x to 0x%x for Volome with "
  483                             "handle 0x%x", le32toh(event_data->PreviousValue),
  484                             le32toh(event_data->NewValue),
  485                             le16toh(event_data->VolDevHandle));
  486                         break;
  487                 case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
  488                         mpr_dprint(sc, MPR_EVENT, "   Volume State "
  489                             "changed from 0x%x to 0x%x for Volome with "
  490                             "handle 0x%x", le32toh(event_data->PreviousValue),
  491                             le32toh(event_data->NewValue),
  492                             le16toh(event_data->VolDevHandle));
  493                                 u32 state;
  494                                 struct mprsas_target *targ;
  495                                 state = le32toh(event_data->NewValue);
  496                                 switch (state) {
  497                                 case MPI2_RAID_VOL_STATE_MISSING:
  498                                 case MPI2_RAID_VOL_STATE_FAILED:
  499                                         mprsas_prepare_volume_remove(sassc,
  500                                             event_data->VolDevHandle);
  501                                         break;
  502                  
  503                                 case MPI2_RAID_VOL_STATE_ONLINE:
  504                                 case MPI2_RAID_VOL_STATE_DEGRADED:
  505                                 case MPI2_RAID_VOL_STATE_OPTIMAL:
  506                                         targ =
  507                                             mprsas_find_target_by_handle(sassc,
  508                                             0, event_data->VolDevHandle);
  509                                         if (targ) {
  510                                                 printf("%s %d: Volume handle "
  511                                                     "0x%x is already added \n",
  512                                                     __func__, __LINE__,
  513                                                     event_data->VolDevHandle);
  514                                                 break;
  515                                         }
  516                                         if (mprsas_volume_add(sc,
  517                                             le16toh(event_data->
  518                                             VolDevHandle))) {
  519                                                 printf("%s: failed to add RAID "
  520                                                     "volume with handle 0x%x\n",
  521                                                     __func__, le16toh(
  522                                                     event_data->VolDevHandle));
  523                                         }
  524                                         break;
  525                                 default:
  526                                         break;
  527                                 }
  528                         break;
  529                 default:
  530                         break;
  531                 }
  532                 break;
  533         }
  534         case MPI2_EVENT_IR_PHYSICAL_DISK:
  535         {
  536                 Mpi2EventDataIrPhysicalDisk_t *event_data =
  537                     fw_event->event_data;
  538                 struct mprsas_target *targ;
  539 
  540                 /*
  541                  * Informational only.
  542                  */
  543                 mpr_dprint(sc, MPR_EVENT, "Received IR Phys Disk event:\n");
  544                 switch (event_data->ReasonCode) {
  545                 case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
  546                         mpr_dprint(sc, MPR_EVENT, "   Phys Disk Settings "
  547                             "changed from 0x%x to 0x%x for Phys Disk Number "
  548                             "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
  549                             "%d", le32toh(event_data->PreviousValue),
  550                             le32toh(event_data->NewValue),
  551                             event_data->PhysDiskNum,
  552                             le16toh(event_data->PhysDiskDevHandle),
  553                             le16toh(event_data->EnclosureHandle),
  554                             le16toh(event_data->Slot));
  555                         break;
  556                 case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
  557                         mpr_dprint(sc, MPR_EVENT, "   Phys Disk Status changed "
  558                             "from 0x%x to 0x%x for Phys Disk Number %d and "
  559                             "handle 0x%x at Enclosure handle 0x%x, Slot %d",
  560                             le32toh(event_data->PreviousValue),
  561                             le32toh(event_data->NewValue),
  562                             event_data->PhysDiskNum,
  563                             le16toh(event_data->PhysDiskDevHandle),
  564                             le16toh(event_data->EnclosureHandle),
  565                             le16toh(event_data->Slot));
  566                         break;
  567                 case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
  568                         mpr_dprint(sc, MPR_EVENT, "   Phys Disk State changed "
  569                             "from 0x%x to 0x%x for Phys Disk Number %d and "
  570                             "handle 0x%x at Enclosure handle 0x%x, Slot %d",
  571                             le32toh(event_data->PreviousValue),
  572                             le32toh(event_data->NewValue),
  573                             event_data->PhysDiskNum,
  574                             le16toh(event_data->PhysDiskDevHandle),
  575                             le16toh(event_data->EnclosureHandle),
  576                             le16toh(event_data->Slot));
  577                         switch (event_data->NewValue) {
  578                                 case MPI2_RAID_PD_STATE_ONLINE:
  579                                 case MPI2_RAID_PD_STATE_DEGRADED:
  580                                 case MPI2_RAID_PD_STATE_REBUILDING:
  581                                 case MPI2_RAID_PD_STATE_OPTIMAL:
  582                                 case MPI2_RAID_PD_STATE_HOT_SPARE:
  583                                         targ = mprsas_find_target_by_handle(
  584                                             sassc, 0,
  585                                             event_data->PhysDiskDevHandle);
  586                                         if (targ) {
  587                                                 targ->flags |=
  588                                                     MPR_TARGET_FLAGS_RAID_COMPONENT;
  589                                                 printf("%s %d: Found Target "
  590                                                     "for handle 0x%x.\n", 
  591                                                     __func__, __LINE__ ,
  592                                                     event_data->
  593                                                     PhysDiskDevHandle);
  594                                         }
  595                                 break;
  596                                 case MPI2_RAID_PD_STATE_OFFLINE:
  597                                 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
  598                                 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
  599                                 default:
  600                                         targ = mprsas_find_target_by_handle(
  601                                             sassc, 0,
  602                                             event_data->PhysDiskDevHandle);
  603                                         if (targ) {
  604                                                 targ->flags |=
  605                                             ~MPR_TARGET_FLAGS_RAID_COMPONENT;
  606                                                 printf("%s %d: Found Target "
  607                                                     "for handle 0x%x.  \n",
  608                                                     __func__, __LINE__ ,
  609                                                     event_data->
  610                                                     PhysDiskDevHandle);
  611                                         }
  612                                 break;
  613                         }
  614                 default:
  615                         break;
  616                 }
  617                 break;
  618         }
  619         case MPI2_EVENT_IR_OPERATION_STATUS:
  620         {
  621                 Mpi2EventDataIrOperationStatus_t *event_data =
  622                     fw_event->event_data;
  623 
  624                 /*
  625                  * Informational only.
  626                  */
  627                 mpr_dprint(sc, MPR_EVENT, "Received IR Op Status event:\n");
  628                 mpr_dprint(sc, MPR_EVENT, "   RAID Operation of %d is %d "
  629                     "percent complete for Volume with handle 0x%x",
  630                     event_data->RAIDOperation, event_data->PercentComplete,
  631                     le16toh(event_data->VolDevHandle));
  632                 break;
  633         }
  634         case MPI2_EVENT_TEMP_THRESHOLD:
  635         {
  636                 pMpi2EventDataTemperature_t     temp_event;
  637 
  638                 temp_event = (pMpi2EventDataTemperature_t)fw_event->event_data;
  639 
  640                 /*
  641                  * The Temp Sensor Count must be greater than the event's Sensor
  642                  * Num to be valid.  If valid, print the temp thresholds that
  643                  * have been exceeded.
  644                  */
  645                 if (sc->iounit_pg8.NumSensors > temp_event->SensorNum) {
  646                         mpr_dprint(sc, MPR_FAULT, "Temperature Threshold flags "
  647                             "%s %s %s %s exceeded for Sensor: %d !!!\n",
  648                             ((temp_event->Status & 0x01) == 1) ? "0 " : " ",
  649                             ((temp_event->Status & 0x02) == 2) ? "1 " : " ",
  650                             ((temp_event->Status & 0x04) == 4) ? "2 " : " ",
  651                             ((temp_event->Status & 0x08) == 8) ? "3 " : " ",
  652                             temp_event->SensorNum);
  653                         mpr_dprint(sc, MPR_FAULT, "Current Temp in Celsius: "
  654                             "%d\n", temp_event->CurrentTemperature);
  655                 }
  656                 break;
  657         }
  658         case MPI2_EVENT_ACTIVE_CABLE_EXCEPTION:
  659         {
  660                 pMpi26EventDataActiveCableExcept_t      ace_event_data;
  661                 ace_event_data =
  662                     (pMpi26EventDataActiveCableExcept_t)fw_event->event_data;
  663 
  664                 switch(ace_event_data->ReasonCode) {
  665                 case MPI26_EVENT_ACTIVE_CABLE_INSUFFICIENT_POWER:
  666                 {
  667                         mpr_printf(sc, "Currently a cable with "
  668                             "ReceptacleID %d cannot be powered and device "
  669                             "connected to this active cable will not be seen. "
  670                             "This active cable requires %d mW of power.\n",
  671                             ace_event_data->ReceptacleID,
  672                             ace_event_data->ActiveCablePowerRequirement);
  673                         break;
  674                 }
  675                 case MPI26_EVENT_ACTIVE_CABLE_DEGRADED:
  676                 {
  677                         mpr_printf(sc, "Currently a cable with "
  678                             "ReceptacleID %d is not running at optimal speed "
  679                             "(12 Gb/s rate)\n", ace_event_data->ReceptacleID);
  680                         break;
  681                 }
  682                 default:
  683                         break;
  684                 }
  685                 break;
  686         }
  687         case MPI2_EVENT_PCIE_DEVICE_STATUS_CHANGE:
  688         {
  689                 pMpi26EventDataPCIeDeviceStatusChange_t pcie_status_event_data;
  690                 pcie_status_event_data =
  691                    (pMpi26EventDataPCIeDeviceStatusChange_t)fw_event->event_data;
  692 
  693                 switch (pcie_status_event_data->ReasonCode) {
  694                 case MPI26_EVENT_PCIDEV_STAT_RC_PCIE_HOT_RESET_FAILED:
  695                 {
  696                         mpr_printf(sc, "PCIe Host Reset failed on DevHandle "
  697                             "0x%x\n", pcie_status_event_data->DevHandle);
  698                         break;
  699                 }
  700                 default:
  701                         break;
  702                 }
  703                 break;
  704         }
  705         case MPI2_EVENT_SAS_DEVICE_DISCOVERY_ERROR:
  706         {
  707                 pMpi25EventDataSasDeviceDiscoveryError_t discovery_error_data;
  708                 uint64_t sas_address;
  709 
  710                 discovery_error_data =
  711                     (pMpi25EventDataSasDeviceDiscoveryError_t)
  712                     fw_event->event_data;
  713                 
  714                 sas_address = discovery_error_data->SASAddress.High;
  715                 sas_address = (sas_address << 32) |
  716                     discovery_error_data->SASAddress.Low;
  717 
  718                 switch(discovery_error_data->ReasonCode) {
  719                 case MPI25_EVENT_SAS_DISC_ERR_SMP_FAILED:
  720                 {
  721                         mpr_printf(sc, "SMP command failed during discovery "
  722                             "for expander with SAS Address %jx and "
  723                             "handle 0x%x.\n", sas_address,
  724                             discovery_error_data->DevHandle);
  725                         break;
  726                 }
  727                 case MPI25_EVENT_SAS_DISC_ERR_SMP_TIMEOUT:
  728                 {
  729                         mpr_printf(sc, "SMP command timed out during "
  730                             "discovery for expander with SAS Address %jx and "
  731                             "handle 0x%x.\n", sas_address,
  732                             discovery_error_data->DevHandle);
  733                         break;
  734                 }
  735                 default:
  736                         break;
  737                 }
  738                 break;
  739         }
  740         case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: 
  741         {
  742                 MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *data;
  743                 MPI26_EVENT_PCIE_TOPO_PORT_ENTRY *port_entry;
  744                 uint8_t i, link_rate;
  745                 uint16_t handle;
  746 
  747                 data = (MPI26_EVENT_DATA_PCIE_TOPOLOGY_CHANGE_LIST *)
  748                     fw_event->event_data;
  749 
  750                 mpr_mapping_pcie_topology_change_event(sc,
  751                     fw_event->event_data);
  752 
  753                 for (i = 0; i < data->NumEntries; i++) {
  754                         port_entry = &data->PortEntry[i];
  755                         handle = le16toh(port_entry->AttachedDevHandle);
  756                         link_rate = port_entry->CurrentPortInfo &
  757                             MPI26_EVENT_PCIE_TOPO_PI_RATE_MASK;
  758                         switch (port_entry->PortStatus) {
  759                         case MPI26_EVENT_PCIE_TOPO_PS_DEV_ADDED:
  760                                 if (link_rate <
  761                                     MPI26_EVENT_PCIE_TOPO_PI_RATE_2_5) {
  762                                         mpr_dprint(sc, MPR_ERROR, "%s: Cannot "
  763                                             "add PCIe device with handle 0x%x "
  764                                             "with unknown link rate.\n",
  765                                             __func__, handle);
  766                                         break;
  767                                 }
  768                                 if (mprsas_add_pcie_device(sc, handle,
  769                                     link_rate)) {
  770                                         mpr_dprint(sc, MPR_ERROR, "%s: failed "
  771                                             "to add PCIe device with handle "
  772                                             "0x%x\n", __func__, handle);
  773                                         mprsas_prepare_remove(sassc, handle);
  774                                 }
  775                                 break;
  776                         case MPI26_EVENT_PCIE_TOPO_PS_NOT_RESPONDING:
  777                                 mprsas_prepare_remove(sassc, handle);
  778                                 break;
  779                         case MPI26_EVENT_PCIE_TOPO_PS_PORT_CHANGED:
  780                         case MPI26_EVENT_PCIE_TOPO_PS_NO_CHANGE:
  781                         case MPI26_EVENT_PCIE_TOPO_PS_DELAY_NOT_RESPONDING:
  782                         default:
  783                                 break;
  784                         }
  785                 }
  786                 /*
  787                  * refcount was incremented for this event in
  788                  * mprsas_evt_handler.  Decrement it here because the event has
  789                  * been processed.
  790                  */
  791                 mprsas_startup_decrement(sassc);
  792                 break;
  793         }
  794         case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
  795         case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
  796         default:
  797                 mpr_dprint(sc, MPR_TRACE,"Unhandled event 0x%0X\n",
  798                     fw_event->event);
  799                 break;
  800         }
  801         mpr_dprint(sc, MPR_EVENT, "(%d)->(%s) Event Free: [%x]\n", event_count,
  802             __func__, fw_event->event);
  803         mprsas_fw_event_free(sc, fw_event);
  804 }
  805 
  806 void
  807 mprsas_firmware_event_work(void *arg, int pending)
  808 {
  809         struct mpr_fw_event_work *fw_event;
  810         struct mpr_softc *sc;
  811 
  812         sc = (struct mpr_softc *)arg;
  813         mpr_lock(sc);
  814         while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
  815                 TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
  816                 mprsas_fw_work(sc, fw_event);
  817         }
  818         mpr_unlock(sc);
  819 }
  820 
  821 static int
  822 mprsas_add_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
  823 {
  824         char devstring[80];
  825         struct mprsas_softc *sassc;
  826         struct mprsas_target *targ;
  827         Mpi2ConfigReply_t mpi_reply;
  828         Mpi2SasDevicePage0_t config_page;
  829         uint64_t sas_address, parent_sas_address = 0;
  830         u32 device_info, parent_devinfo = 0;
  831         unsigned int id;
  832         int ret = 1, error = 0, i;
  833         struct mprsas_lun *lun;
  834         u8 is_SATA_SSD = 0;
  835         struct mpr_command *cm;
  836 
  837         sassc = sc->sassc;
  838         mprsas_startup_increment(sassc);
  839         if (mpr_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
  840             MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) {
  841                 mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
  842                     "Error reading SAS device %#x page0, iocstatus= 0x%x\n",
  843                     handle, mpi_reply.IOCStatus);
  844                 error = ENXIO;
  845                 goto out;
  846         }
  847 
  848         device_info = le32toh(config_page.DeviceInfo);
  849 
  850         if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
  851             && (le16toh(config_page.ParentDevHandle) != 0)) {
  852                 Mpi2ConfigReply_t tmp_mpi_reply;
  853                 Mpi2SasDevicePage0_t parent_config_page;
  854 
  855                 if (mpr_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
  856                     &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
  857                     le16toh(config_page.ParentDevHandle)) != 0) {
  858                         mpr_dprint(sc, MPR_MAPPING|MPR_FAULT,
  859                             "Error reading parent SAS device %#x page0, "
  860                             "iocstatus= 0x%x\n",
  861                             le16toh(config_page.ParentDevHandle),
  862                             tmp_mpi_reply.IOCStatus);
  863                 } else {
  864                         parent_sas_address = parent_config_page.SASAddress.High;
  865                         parent_sas_address = (parent_sas_address << 32) |
  866                             parent_config_page.SASAddress.Low;
  867                         parent_devinfo = le32toh(parent_config_page.DeviceInfo);
  868                 }
  869         }
  870         /* TODO Check proper endianness */
  871         sas_address = config_page.SASAddress.High;
  872         sas_address = (sas_address << 32) | config_page.SASAddress.Low;
  873         mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address from SAS device "
  874             "page0 = %jx\n", handle, sas_address);
  875 
  876         /*
  877          * Always get SATA Identify information because this is used to
  878          * determine if Start/Stop Unit should be sent to the drive when the
  879          * system is shutdown.
  880          */
  881         if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
  882                 ret = mprsas_get_sas_address_for_sata_disk(sc, &sas_address,
  883                     handle, device_info, &is_SATA_SSD);
  884                 if (ret) {
  885                         mpr_dprint(sc, MPR_MAPPING|MPR_ERROR,
  886                             "%s: failed to get disk type (SSD or HDD) for SATA "
  887                             "device with handle 0x%04x\n",
  888                             __func__, handle);
  889                 } else {
  890                         mpr_dprint(sc, MPR_MAPPING, "Handle 0x%04x SAS Address "
  891                             "from SATA device = %jx\n", handle, sas_address);
  892                 }
  893         }
  894 
  895         /*
  896          * use_phynum:
  897          *  1 - use the PhyNum field as a fallback to the mapping logic
  898          *  0 - never use the PhyNum field
  899          * -1 - only use the PhyNum field
  900          *
  901          * Note that using the Phy number to map a device can cause device adds
  902          * to fail if multiple enclosures/expanders are in the topology. For
  903          * example, if two devices are in the same slot number in two different
  904          * enclosures within the topology, only one of those devices will be
  905          * added. PhyNum mapping should not be used if multiple enclosures are
  906          * in the topology.
  907          */
  908         id = MPR_MAP_BAD_ID;
  909         if (sc->use_phynum != -1) 
  910                 id = mpr_mapping_get_tid(sc, sas_address, handle);
  911         if (id == MPR_MAP_BAD_ID) {
  912                 if ((sc->use_phynum == 0) ||
  913                     ((id = config_page.PhyNum) > sassc->maxtargets)) {
  914                         mpr_dprint(sc, MPR_INFO, "failure at %s:%d/%s()! "
  915                             "Could not get ID for device with handle 0x%04x\n",
  916                             __FILE__, __LINE__, __func__, handle);
  917                         error = ENXIO;
  918                         goto out;
  919                 }
  920         }
  921         mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
  922             __func__, id);
  923 
  924         /*
  925          * Only do the ID check and reuse check if the target is not from a
  926          * RAID Component. For Physical Disks of a Volume, the ID will be reused
  927          * when a volume is deleted because the mapping entry for the PD will
  928          * still be in the mapping table. The ID check should not be done here
  929          * either since this PD is already being used.
  930          */
  931         targ = &sassc->targets[id];
  932         if (!(targ->flags & MPR_TARGET_FLAGS_RAID_COMPONENT)) {
  933                 if (mprsas_check_id(sassc, id) != 0) {
  934                         mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
  935                             "Excluding target id %d\n", id);
  936                         error = ENXIO;
  937                         goto out;
  938                 }
  939 
  940                 if (targ->handle != 0x0) {
  941                         mpr_dprint(sc, MPR_MAPPING, "Attempting to reuse "
  942                             "target id %d handle 0x%04x\n", id, targ->handle);
  943                         error = ENXIO;
  944                         goto out;
  945                 }
  946         }
  947 
  948         targ->devinfo = device_info;
  949         targ->devname = le32toh(config_page.DeviceName.High);
  950         targ->devname = (targ->devname << 32) | 
  951             le32toh(config_page.DeviceName.Low);
  952         targ->encl_handle = le16toh(config_page.EnclosureHandle);
  953         targ->encl_slot = le16toh(config_page.Slot);
  954         targ->encl_level = config_page.EnclosureLevel;
  955         targ->connector_name[0] = config_page.ConnectorName[0];
  956         targ->connector_name[1] = config_page.ConnectorName[1];
  957         targ->connector_name[2] = config_page.ConnectorName[2];
  958         targ->connector_name[3] = config_page.ConnectorName[3];
  959         targ->handle = handle;
  960         targ->parent_handle = le16toh(config_page.ParentDevHandle);
  961         targ->sasaddr = mpr_to_u64(&config_page.SASAddress);
  962         targ->parent_sasaddr = le64toh(parent_sas_address);
  963         targ->parent_devinfo = parent_devinfo;
  964         targ->tid = id;
  965         targ->linkrate = (linkrate>>4);
  966         targ->flags = 0;
  967         if (is_SATA_SSD) {
  968                 targ->flags = MPR_TARGET_IS_SATA_SSD;
  969         }
  970         if ((le16toh(config_page.Flags) &
  971             MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH) &&
  972             (le16toh(config_page.Flags) &
  973             MPI25_SAS_DEVICE0_FLAGS_FAST_PATH_CAPABLE)) {
  974                 targ->scsi_req_desc_type =
  975                     MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
  976         }
  977         if (le16toh(config_page.Flags) &
  978             MPI2_SAS_DEVICE0_FLAGS_ENCL_LEVEL_VALID) {
  979                 targ->encl_level_valid = TRUE;
  980         }
  981         TAILQ_INIT(&targ->commands);
  982         TAILQ_INIT(&targ->timedout_commands);
  983         while (!SLIST_EMPTY(&targ->luns)) {
  984                 lun = SLIST_FIRST(&targ->luns);
  985                 SLIST_REMOVE_HEAD(&targ->luns, lun_link);
  986                 free(lun, M_MPR);
  987         }
  988         SLIST_INIT(&targ->luns);
  989 
  990         mpr_describe_devinfo(targ->devinfo, devstring, 80);
  991         mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found device <%s> <%s> "
  992             "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
  993             mpr_describe_table(mpr_linkrate_names, targ->linkrate),
  994             targ->handle, targ->encl_handle, targ->encl_slot);
  995         if (targ->encl_level_valid) {
  996                 mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
  997                     "and connector name (%4s)\n", targ->encl_level,
  998                     targ->connector_name);
  999         }
 1000         mprsas_rescan_target(sc, targ);
 1001         mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
 1002 
 1003         /*
 1004          * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
 1005          * If so, send a Target Reset TM to the target that was just created.
 1006          * An Abort Task TM should be used instead of a Target Reset, but that
 1007          * would be much more difficult because targets have not been fully
 1008          * discovered yet, and LUN's haven't been setup.  So, just reset the
 1009          * target instead of the LUN.
 1010          */
 1011         for (i = 1; i < sc->num_reqs; i++) {
 1012                 cm = &sc->commands[i];
 1013                 if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
 1014                         targ->timeouts++;
 1015                         cm->cm_flags |= MPR_CM_FLAGS_TIMEDOUT;
 1016 
 1017                         if ((targ->tm = mprsas_alloc_tm(sc)) != NULL) {
 1018                                 mpr_dprint(sc, MPR_INFO, "%s: sending Target "
 1019                                     "Reset for stuck SATA identify command "
 1020                                     "(cm = %p)\n", __func__, cm);
 1021                                 targ->tm->cm_targ = targ;
 1022                                 mprsas_send_reset(sc, targ->tm,
 1023                                     MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
 1024                         } else {
 1025                                 mpr_dprint(sc, MPR_ERROR, "Failed to allocate "
 1026                                     "tm for Target Reset after SATA ID command "
 1027                                     "timed out (cm %p)\n", cm);
 1028                         }
 1029                         /*
 1030                          * No need to check for more since the target is
 1031                          * already being reset.
 1032                          */
 1033                         break;
 1034                 }
 1035         }
 1036 out:
 1037         /*
 1038          * Free the commands that may not have been freed from the SATA ID call
 1039          */
 1040         for (i = 1; i < sc->num_reqs; i++) {
 1041                 cm = &sc->commands[i];
 1042                 if (cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) {
 1043                         free(cm->cm_data, M_MPR);
 1044                         mpr_free_command(sc, cm);
 1045                 }
 1046         }
 1047         mprsas_startup_decrement(sassc);
 1048         return (error);
 1049 }
 1050 
 1051 int
 1052 mprsas_get_sas_address_for_sata_disk(struct mpr_softc *sc,
 1053     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
 1054 {
 1055         Mpi2SataPassthroughReply_t mpi_reply;
 1056         int i, rc, try_count;
 1057         u32 *bufferptr;
 1058         union _sata_sas_address hash_address;
 1059         struct _ata_identify_device_data ata_identify;
 1060         u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
 1061         u32 ioc_status;
 1062         u8 sas_status;
 1063 
 1064         memset(&ata_identify, 0, sizeof(ata_identify));
 1065         memset(&mpi_reply, 0, sizeof(mpi_reply));
 1066         try_count = 0;
 1067         do {
 1068                 rc = mprsas_get_sata_identify(sc, handle, &mpi_reply,
 1069                     (char *)&ata_identify, sizeof(ata_identify), device_info);
 1070                 try_count++;
 1071                 ioc_status = le16toh(mpi_reply.IOCStatus)
 1072                     & MPI2_IOCSTATUS_MASK;
 1073                 sas_status = mpi_reply.SASStatus;
 1074                 switch (ioc_status) {
 1075                 case MPI2_IOCSTATUS_SUCCESS:
 1076                         break;
 1077                 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 1078                         /* No sense sleeping.  this error won't get better */
 1079                         break;
 1080                 default:
 1081                         if (sc->spinup_wait_time > 0) {
 1082                                 mpr_dprint(sc, MPR_INFO, "Sleeping %d seconds "
 1083                                     "after SATA ID error to wait for spinup\n",
 1084                                     sc->spinup_wait_time);
 1085                                 msleep(&sc->msleep_fake_chan, &sc->mpr_mtx, 0,
 1086                                     "mprid", sc->spinup_wait_time * hz);
 1087                         }
 1088                 }
 1089         } while (((rc && (rc != EWOULDBLOCK)) ||
 1090             (ioc_status && (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
 1091             || sas_status) && (try_count < 5));
 1092 
 1093         if (rc == 0 && !ioc_status && !sas_status) {
 1094                 mpr_dprint(sc, MPR_MAPPING, "%s: got SATA identify "
 1095                     "successfully for handle = 0x%x with try_count = %d\n",
 1096                     __func__, handle, try_count);
 1097         } else {
 1098                 mpr_dprint(sc, MPR_MAPPING, "%s: handle = 0x%x failed\n",
 1099                     __func__, handle);
 1100                 return -1;
 1101         }
 1102         /* Copy & byteswap the 40 byte model number to a buffer */
 1103         for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
 1104                 buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
 1105                 buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
 1106         }
 1107         /* Copy & byteswap the 20 byte serial number to a buffer */
 1108         for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
 1109                 buffer[MPT2SAS_MN_LEN + i] =
 1110                     ((u8 *)ata_identify.serial_number)[i + 1];
 1111                 buffer[MPT2SAS_MN_LEN + i + 1] =
 1112                     ((u8 *)ata_identify.serial_number)[i];
 1113         }
 1114         bufferptr = (u32 *)buffer;
 1115         /* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
 1116          * so loop through the first 56 bytes (7*8),
 1117          * and then add in the last dword.
 1118          */
 1119         hash_address.word.low  = 0;
 1120         hash_address.word.high = 0;
 1121         for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
 1122                 hash_address.word.low += *bufferptr;
 1123                 bufferptr++;
 1124                 hash_address.word.high += *bufferptr;
 1125                 bufferptr++;
 1126         }
 1127         /* Add the last dword */
 1128         hash_address.word.low += *bufferptr;
 1129         /* Make sure the hash doesn't start with 5, because it could clash
 1130          * with a SAS address. Change 5 to a D.
 1131          */
 1132         if ((hash_address.word.high & 0x000000F0) == (0x00000050))
 1133                 hash_address.word.high |= 0x00000080;
 1134         *sas_address = (u64)hash_address.wwid[0] << 56 |
 1135             (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
 1136             (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
 1137             (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
 1138             (u64)hash_address.wwid[7];
 1139         if (ata_identify.rotational_speed == 1) {
 1140                 *is_SATA_SSD = 1;
 1141         }
 1142 
 1143         return 0;
 1144 }
 1145 
 1146 static int
 1147 mprsas_get_sata_identify(struct mpr_softc *sc, u16 handle,
 1148     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
 1149 {
 1150         Mpi2SataPassthroughRequest_t *mpi_request;
 1151         Mpi2SataPassthroughReply_t *reply;
 1152         struct mpr_command *cm;
 1153         char *buffer;
 1154         int error = 0;
 1155 
 1156         buffer = malloc( sz, M_MPR, M_NOWAIT | M_ZERO);
 1157         if (!buffer)
 1158                 return ENOMEM;
 1159 
 1160         if ((cm = mpr_alloc_command(sc)) == NULL) {
 1161                 free(buffer, M_MPR);
 1162                 return (EBUSY);
 1163         }
 1164         mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
 1165         bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
 1166         mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
 1167         mpi_request->VF_ID = 0;
 1168         mpi_request->DevHandle = htole16(handle);
 1169         mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
 1170             MPI2_SATA_PT_REQ_PT_FLAGS_READ);
 1171         mpi_request->DataLength = htole32(sz);
 1172         mpi_request->CommandFIS[0] = 0x27;
 1173         mpi_request->CommandFIS[1] = 0x80;
 1174         mpi_request->CommandFIS[2] =  (devinfo &
 1175             MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
 1176         cm->cm_sge = &mpi_request->SGL;
 1177         cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
 1178         cm->cm_flags = MPR_CM_FLAGS_DATAIN;
 1179         cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
 1180         cm->cm_data = buffer;
 1181         cm->cm_length = htole32(sz);
 1182 
 1183         /*
 1184          * Use a custom handler to avoid reinit'ing the controller on timeout.
 1185          * This fixes a problem where the FW does not send a reply sometimes
 1186          * when a bad disk is in the topology. So, this is used to timeout the
 1187          * command so that processing can continue normally.
 1188          */
 1189         cm->cm_timeout_handler = mprsas_ata_id_timeout;
 1190 
 1191         error = mpr_wait_command(sc, &cm, MPR_ATA_ID_TIMEOUT, CAN_SLEEP);
 1192 
 1193         /* mprsas_ata_id_timeout does not reset controller */
 1194         KASSERT(cm != NULL, ("%s: surprise command freed", __func__));
 1195 
 1196         reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
 1197         if (error || (reply == NULL)) {
 1198                 /* FIXME */
 1199                 /*
 1200                  * If the request returns an error then we need to do a diag
 1201                  * reset
 1202                  */
 1203                 mpr_dprint(sc, MPR_INFO|MPR_FAULT|MPR_MAPPING,
 1204                     "Request for SATA PASSTHROUGH page completed with error %d\n",
 1205                     error);
 1206                 error = ENXIO;
 1207                 goto out;
 1208         }
 1209         bcopy(buffer, id_buffer, sz);
 1210         bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
 1211         if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
 1212             MPI2_IOCSTATUS_SUCCESS) {
 1213                 mpr_dprint(sc, MPR_INFO|MPR_MAPPING|MPR_FAULT,
 1214                     "Error reading device %#x SATA PASSTHRU; iocstatus= 0x%x\n",
 1215                     handle, reply->IOCStatus);
 1216                 error = ENXIO;
 1217                 goto out;
 1218         }
 1219 out:
 1220         /*
 1221          * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
 1222          * it.  The command and buffer will be freed after sending an Abort
 1223          * Task TM.
 1224          */
 1225         if ((cm->cm_flags & MPR_CM_FLAGS_SATA_ID_TIMEOUT) == 0) {
 1226                 mpr_free_command(sc, cm);
 1227                 free(buffer, M_MPR);
 1228         }
 1229         return (error);
 1230 }
 1231 
 1232 static void
 1233 mprsas_ata_id_timeout(struct mpr_softc *sc, struct mpr_command *cm)
 1234 {
 1235 
 1236         mpr_dprint(sc, MPR_INFO, "%s ATA ID command timeout cm %p sc %p\n",
 1237             __func__, cm, sc);
 1238 
 1239         /*
 1240          * The Abort Task cannot be sent from here because the driver has not
 1241          * completed setting up targets.  Instead, the command is flagged so
 1242          * that special handling will be used to send the abort. Now that
 1243          * this command has timed out, it's no longer in the queue.
 1244          */
 1245         cm->cm_flags |= MPR_CM_FLAGS_SATA_ID_TIMEOUT;
 1246         cm->cm_state = MPR_CM_STATE_BUSY;
 1247 }
 1248 
 1249 static int
 1250 mprsas_add_pcie_device(struct mpr_softc *sc, u16 handle, u8 linkrate)
 1251 {
 1252         char devstring[80];
 1253         struct mprsas_softc *sassc;
 1254         struct mprsas_target *targ;
 1255         Mpi2ConfigReply_t mpi_reply;
 1256         Mpi26PCIeDevicePage0_t config_page;
 1257         Mpi26PCIeDevicePage2_t config_page2;
 1258         uint64_t pcie_wwid, parent_wwid = 0;
 1259         u32 device_info, parent_devinfo = 0;
 1260         unsigned int id;
 1261         int error = 0;
 1262         struct mprsas_lun *lun;
 1263 
 1264         sassc = sc->sassc;
 1265         mprsas_startup_increment(sassc);
 1266         if ((mpr_config_get_pcie_device_pg0(sc, &mpi_reply, &config_page,
 1267              MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
 1268                 printf("%s: error reading PCIe device page0\n", __func__);
 1269                 error = ENXIO;
 1270                 goto out;
 1271         }
 1272 
 1273         device_info = le32toh(config_page.DeviceInfo);
 1274 
 1275         if (((device_info & MPI26_PCIE_DEVINFO_PCI_SWITCH) == 0)
 1276             && (le16toh(config_page.ParentDevHandle) != 0)) {
 1277                 Mpi2ConfigReply_t tmp_mpi_reply;
 1278                 Mpi26PCIeDevicePage0_t parent_config_page;
 1279 
 1280                 if ((mpr_config_get_pcie_device_pg0(sc, &tmp_mpi_reply,
 1281                      &parent_config_page, MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE,
 1282                      le16toh(config_page.ParentDevHandle)))) {
 1283                         printf("%s: error reading PCIe device %#x page0\n",
 1284                             __func__, le16toh(config_page.ParentDevHandle));
 1285                 } else {
 1286                         parent_wwid = parent_config_page.WWID.High;
 1287                         parent_wwid = (parent_wwid << 32) |
 1288                             parent_config_page.WWID.Low;
 1289                         parent_devinfo = le32toh(parent_config_page.DeviceInfo);
 1290                 }
 1291         }
 1292         /* TODO Check proper endianness */
 1293         pcie_wwid = config_page.WWID.High;
 1294         pcie_wwid = (pcie_wwid << 32) | config_page.WWID.Low;
 1295         mpr_dprint(sc, MPR_INFO, "PCIe WWID from PCIe device page0 = %jx\n",
 1296             pcie_wwid);
 1297 
 1298         if ((mpr_config_get_pcie_device_pg2(sc, &mpi_reply, &config_page2,
 1299              MPI26_PCIE_DEVICE_PGAD_FORM_HANDLE, handle))) {
 1300                 printf("%s: error reading PCIe device page2\n", __func__);
 1301                 error = ENXIO;
 1302                 goto out;
 1303         }
 1304 
 1305         id = mpr_mapping_get_tid(sc, pcie_wwid, handle);
 1306         if (id == MPR_MAP_BAD_ID) {
 1307                 mpr_dprint(sc, MPR_ERROR | MPR_INFO, "failure at %s:%d/%s()! "
 1308                     "Could not get ID for device with handle 0x%04x\n",
 1309                     __FILE__, __LINE__, __func__, handle);
 1310                 error = ENXIO;
 1311                 goto out;
 1312         }
 1313         mpr_dprint(sc, MPR_MAPPING, "%s: Target ID for added device is %d.\n",
 1314             __func__, id);
 1315 
 1316         if (mprsas_check_id(sassc, id) != 0) {
 1317                 mpr_dprint(sc, MPR_MAPPING|MPR_INFO,
 1318                     "Excluding target id %d\n", id);
 1319                 error = ENXIO;
 1320                 goto out;
 1321         }
 1322 
 1323         mpr_dprint(sc, MPR_MAPPING, "WWID from PCIe device page0 = %jx\n",
 1324             pcie_wwid);
 1325         targ = &sassc->targets[id];
 1326         targ->devinfo = device_info;
 1327         targ->encl_handle = le16toh(config_page.EnclosureHandle);
 1328         targ->encl_slot = le16toh(config_page.Slot);
 1329         targ->encl_level = config_page.EnclosureLevel;
 1330         targ->connector_name[0] = ((char *)&config_page.ConnectorName)[0];
 1331         targ->connector_name[1] = ((char *)&config_page.ConnectorName)[1];
 1332         targ->connector_name[2] = ((char *)&config_page.ConnectorName)[2];
 1333         targ->connector_name[3] = ((char *)&config_page.ConnectorName)[3];
 1334         targ->is_nvme = device_info & MPI26_PCIE_DEVINFO_NVME;
 1335         targ->MDTS = config_page2.MaximumDataTransferSize;
 1336         if (targ->is_nvme)
 1337                 targ->controller_reset_timeout = config_page2.ControllerResetTO;
 1338         /*
 1339          * Assume always TRUE for encl_level_valid because there is no valid
 1340          * flag for PCIe.
 1341          */
 1342         targ->encl_level_valid = TRUE;
 1343         targ->handle = handle;
 1344         targ->parent_handle = le16toh(config_page.ParentDevHandle);
 1345         targ->sasaddr = mpr_to_u64(&config_page.WWID);
 1346         targ->parent_sasaddr = le64toh(parent_wwid);
 1347         targ->parent_devinfo = parent_devinfo;
 1348         targ->tid = id;
 1349         targ->linkrate = linkrate;
 1350         targ->flags = 0;
 1351         if ((le16toh(config_page.Flags) &
 1352             MPI26_PCIEDEV0_FLAGS_ENABLED_FAST_PATH) && 
 1353             (le16toh(config_page.Flags) &
 1354             MPI26_PCIEDEV0_FLAGS_FAST_PATH_CAPABLE)) {
 1355                 targ->scsi_req_desc_type =
 1356                     MPI25_REQ_DESCRIPT_FLAGS_FAST_PATH_SCSI_IO;
 1357         }
 1358         TAILQ_INIT(&targ->commands);
 1359         TAILQ_INIT(&targ->timedout_commands);
 1360         while (!SLIST_EMPTY(&targ->luns)) {
 1361                 lun = SLIST_FIRST(&targ->luns);
 1362                 SLIST_REMOVE_HEAD(&targ->luns, lun_link);
 1363                 free(lun, M_MPR);
 1364         }
 1365         SLIST_INIT(&targ->luns);
 1366 
 1367         mpr_describe_devinfo(targ->devinfo, devstring, 80);
 1368         mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "Found PCIe device <%s> <%s> "
 1369             "handle<0x%04x> enclosureHandle<0x%04x> slot %d\n", devstring,
 1370             mpr_describe_table(mpr_pcie_linkrate_names, targ->linkrate),
 1371             targ->handle, targ->encl_handle, targ->encl_slot);
 1372         if (targ->encl_level_valid) {
 1373                 mpr_dprint(sc, (MPR_INFO|MPR_MAPPING), "At enclosure level %d "
 1374                     "and connector name (%4s)\n", targ->encl_level,
 1375                     targ->connector_name);
 1376         }
 1377         mprsas_rescan_target(sc, targ);
 1378         mpr_dprint(sc, MPR_MAPPING, "Target id 0x%x added\n", targ->tid);
 1379 
 1380 out:
 1381         mprsas_startup_decrement(sassc);
 1382         return (error);
 1383 }
 1384 
 1385 static int
 1386 mprsas_volume_add(struct mpr_softc *sc, u16 handle)
 1387 {
 1388         struct mprsas_softc *sassc;
 1389         struct mprsas_target *targ;
 1390         u64 wwid;
 1391         unsigned int id;
 1392         int error = 0;
 1393         struct mprsas_lun *lun;
 1394 
 1395         sassc = sc->sassc;
 1396         mprsas_startup_increment(sassc);
 1397         /* wwid is endian safe */
 1398         mpr_config_get_volume_wwid(sc, handle, &wwid);
 1399         if (!wwid) {
 1400                 printf("%s: invalid WWID; cannot add volume to mapping table\n",
 1401                     __func__);
 1402                 error = ENXIO;
 1403                 goto out;
 1404         }
 1405 
 1406         id = mpr_mapping_get_raid_tid(sc, wwid, handle);
 1407         if (id == MPR_MAP_BAD_ID) {
 1408                 printf("%s: could not get ID for volume with handle 0x%04x and "
 1409                     "WWID 0x%016llx\n", __func__, handle,
 1410                     (unsigned long long)wwid);
 1411                 error = ENXIO;
 1412                 goto out;
 1413         }
 1414 
 1415         targ = &sassc->targets[id];
 1416         targ->tid = id;
 1417         targ->handle = handle;
 1418         targ->devname = wwid;
 1419         TAILQ_INIT(&targ->commands);
 1420         TAILQ_INIT(&targ->timedout_commands);
 1421         while (!SLIST_EMPTY(&targ->luns)) {
 1422                 lun = SLIST_FIRST(&targ->luns);
 1423                 SLIST_REMOVE_HEAD(&targ->luns, lun_link);
 1424                 free(lun, M_MPR);
 1425         }
 1426         SLIST_INIT(&targ->luns);
 1427         mprsas_rescan_target(sc, targ);
 1428         mpr_dprint(sc, MPR_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
 1429             targ->tid, wwid);
 1430 out:
 1431         mprsas_startup_decrement(sassc);
 1432         return (error);
 1433 }
 1434 
 1435 /**
 1436  * mprsas_SSU_to_SATA_devices 
 1437  * @sc: per adapter object
 1438  *
 1439  * Looks through the target list and issues a StartStopUnit SCSI command to each
 1440  * SATA direct-access device.  This helps to ensure that data corruption is
 1441  * avoided when the system is being shut down.  This must be called after the IR
 1442  * System Shutdown RAID Action is sent if in IR mode.
 1443  *
 1444  * Return nothing.
 1445  */
 1446 static void
 1447 mprsas_SSU_to_SATA_devices(struct mpr_softc *sc, int howto)
 1448 {
 1449         struct mprsas_softc *sassc = sc->sassc;
 1450         union ccb *ccb;
 1451         path_id_t pathid = cam_sim_path(sassc->sim);
 1452         target_id_t targetid;
 1453         struct mprsas_target *target;
 1454         char path_str[64];
 1455         int timeout;
 1456 
 1457         mpr_lock(sc);
 1458 
 1459         /*
 1460          * For each target, issue a StartStopUnit command to stop the device.
 1461          */
 1462         sc->SSU_started = TRUE;
 1463         sc->SSU_refcount = 0;
 1464         for (targetid = 0; targetid < sc->max_devices; targetid++) {
 1465                 target = &sassc->targets[targetid];
 1466                 if (target->handle == 0x0) {
 1467                         continue;
 1468                 }
 1469 
 1470                 /*
 1471                  * The stop_at_shutdown flag will be set if this device is
 1472                  * a SATA direct-access end device.
 1473                  */
 1474                 if (target->stop_at_shutdown) {
 1475                         ccb = xpt_alloc_ccb_nowait();
 1476                         if (ccb == NULL) {
 1477                                 mpr_dprint(sc, MPR_FAULT, "Unable to alloc CCB "
 1478                                     "to stop unit.\n");
 1479                                 return;
 1480                         }
 1481 
 1482                         if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
 1483                             pathid, targetid, CAM_LUN_WILDCARD) !=
 1484                             CAM_REQ_CMP) {
 1485                                 mpr_dprint(sc, MPR_ERROR, "Unable to create "
 1486                                     "path to stop unit.\n");
 1487                                 xpt_free_ccb(ccb);
 1488                                 return;
 1489                         }
 1490                         xpt_path_string(ccb->ccb_h.path, path_str,
 1491                             sizeof(path_str));
 1492 
 1493                         mpr_dprint(sc, MPR_INFO, "Sending StopUnit: path %s "
 1494                             "handle %d\n", path_str, target->handle);
 1495 
 1496                         /*
 1497                          * Issue a START STOP UNIT command for the target.
 1498                          * Increment the SSU counter to be used to count the
 1499                          * number of required replies.
 1500                          */
 1501                         mpr_dprint(sc, MPR_INFO, "Incrementing SSU count\n");
 1502                         sc->SSU_refcount++;
 1503                         ccb->ccb_h.target_id =
 1504                             xpt_path_target_id(ccb->ccb_h.path);
 1505                         ccb->ccb_h.ppriv_ptr1 = sassc;
 1506                         scsi_start_stop(&ccb->csio,
 1507                             /*retries*/0,
 1508                             mprsas_stop_unit_done,
 1509                             MSG_SIMPLE_Q_TAG,
 1510                             /*start*/FALSE,
 1511                             /*load/eject*/0,
 1512                             /*immediate*/FALSE,
 1513                             MPR_SENSE_LEN,
 1514                             /*timeout*/10000);
 1515                         xpt_action(ccb);
 1516                 }
 1517         }
 1518 
 1519         mpr_unlock(sc);
 1520 
 1521         /*
 1522          * Timeout after 60 seconds by default or 10 seconds if howto has
 1523          * RB_NOSYNC set which indicates we're likely handling a panic.
 1524          */
 1525         timeout = 600;
 1526         if (howto & RB_NOSYNC)
 1527                 timeout = 100;
 1528 
 1529         /*
 1530          * Wait until all of the SSU commands have completed or time
 1531          * has expired. Pause for 100ms each time through.  If any
 1532          * command times out, the target will be reset in the SCSI
 1533          * command timeout routine.
 1534          */
 1535         while (sc->SSU_refcount > 0) {
 1536                 pause("mprwait", hz/10);
 1537                 if (SCHEDULER_STOPPED())
 1538                         xpt_sim_poll(sassc->sim);
 1539                 
 1540                 if (--timeout == 0) {
 1541                         mpr_dprint(sc, MPR_ERROR, "Time has expired waiting "
 1542                             "for SSU commands to complete.\n");
 1543                         break;
 1544                 }
 1545         }
 1546 }
 1547 
 1548 static void
 1549 mprsas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
 1550 {
 1551         struct mprsas_softc *sassc;
 1552         char path_str[64];
 1553 
 1554         if (done_ccb == NULL)
 1555                 return;
 1556 
 1557         sassc = (struct mprsas_softc *)done_ccb->ccb_h.ppriv_ptr1;
 1558 
 1559         xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
 1560         mpr_dprint(sassc->sc, MPR_INFO, "Completing stop unit for %s\n",
 1561             path_str);
 1562 
 1563         /*
 1564          * Nothing more to do except free the CCB and path.  If the command
 1565          * timed out, an abort reset, then target reset will be issued during
 1566          * the SCSI Command process.
 1567          */
 1568         xpt_free_path(done_ccb->ccb_h.path);
 1569         xpt_free_ccb(done_ccb);
 1570 }
 1571 
 1572 /**
 1573  * mprsas_ir_shutdown - IR shutdown notification
 1574  * @sc: per adapter object
 1575  *
 1576  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
 1577  * the host system is shutting down.
 1578  *
 1579  * Return nothing.
 1580  */
 1581 void
 1582 mprsas_ir_shutdown(struct mpr_softc *sc, int howto)
 1583 {
 1584         u16 volume_mapping_flags;
 1585         u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
 1586         struct dev_mapping_table *mt_entry;
 1587         u32 start_idx, end_idx;
 1588         unsigned int id, found_volume = 0;
 1589         struct mpr_command *cm;
 1590         Mpi2RaidActionRequest_t *action;
 1591         target_id_t targetid;
 1592         struct mprsas_target *target;
 1593 
 1594         mpr_dprint(sc, MPR_TRACE, "%s\n", __func__);
 1595 
 1596         /* is IR firmware build loaded? */
 1597         if (!sc->ir_firmware)
 1598                 goto out;
 1599 
 1600         /* are there any volumes?  Look at IR target IDs. */
 1601         // TODO-later, this should be looked up in the RAID config structure
 1602         // when it is implemented.
 1603         volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
 1604             MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
 1605         if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
 1606                 start_idx = 0;
 1607                 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
 1608                         start_idx = 1;
 1609         } else
 1610                 start_idx = sc->max_devices - sc->max_volumes;
 1611         end_idx = start_idx + sc->max_volumes - 1;
 1612 
 1613         for (id = start_idx; id < end_idx; id++) {
 1614                 mt_entry = &sc->mapping_table[id];
 1615                 if ((mt_entry->physical_id != 0) &&
 1616                     (mt_entry->missing_count == 0)) {
 1617                         found_volume = 1;
 1618                         break;
 1619                 }
 1620         }
 1621 
 1622         if (!found_volume)
 1623                 goto out;
 1624 
 1625         if ((cm = mpr_alloc_command(sc)) == NULL) {
 1626                 printf("%s: command alloc failed\n", __func__);
 1627                 goto out;
 1628         }
 1629 
 1630         action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
 1631         action->Function = MPI2_FUNCTION_RAID_ACTION;
 1632         action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
 1633         cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
 1634         mpr_lock(sc);
 1635         mpr_wait_command(sc, &cm, 5, CAN_SLEEP);
 1636         mpr_unlock(sc);
 1637 
 1638         /*
 1639          * Don't check for reply, just leave.
 1640          */
 1641         if (cm)
 1642                 mpr_free_command(sc, cm);
 1643 
 1644 out:
 1645         /*
 1646          * All of the targets must have the correct value set for
 1647          * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
 1648          *
 1649          * The possible values for the 'enable_ssu' variable are:
 1650          * 0: disable to SSD and HDD
 1651          * 1: disable only to HDD (default)
 1652          * 2: disable only to SSD
 1653          * 3: enable to SSD and HDD
 1654          * anything else will default to 1.
 1655          */
 1656         for (targetid = 0; targetid < sc->max_devices; targetid++) {
 1657                 target = &sc->sassc->targets[targetid];
 1658                 if (target->handle == 0x0) {
 1659                         continue;
 1660                 }
 1661 
 1662                 if (target->supports_SSU) {
 1663                         switch (sc->enable_ssu) {
 1664                         case MPR_SSU_DISABLE_SSD_DISABLE_HDD:
 1665                                 target->stop_at_shutdown = FALSE;
 1666                                 break;
 1667                         case MPR_SSU_DISABLE_SSD_ENABLE_HDD:
 1668                                 target->stop_at_shutdown = TRUE;
 1669                                 if (target->flags & MPR_TARGET_IS_SATA_SSD) {
 1670                                         target->stop_at_shutdown = FALSE;
 1671                                 }
 1672                                 break;
 1673                         case MPR_SSU_ENABLE_SSD_ENABLE_HDD:
 1674                                 target->stop_at_shutdown = TRUE;
 1675                                 break;
 1676                         case MPR_SSU_ENABLE_SSD_DISABLE_HDD:
 1677                         default:
 1678                                 target->stop_at_shutdown = TRUE;
 1679                                 if ((target->flags &
 1680                                     MPR_TARGET_IS_SATA_SSD) == 0) {
 1681                                         target->stop_at_shutdown = FALSE;
 1682                                 }
 1683                                 break;
 1684                         }
 1685                 }
 1686         }
 1687         mprsas_SSU_to_SATA_devices(sc, howto);
 1688 }

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