sys/dev/mps/mps_sas_lsi.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2011-2015 LSI Corp.
   5  * Copyright (c) 2013-2015 Avago Technologies
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * Avago Technologies (LSI) MPT-Fusion Host Adapter FreeBSD
  30  */
  31
  32 #include <sys/cdefs.h>
  33 __FBSDID("$FreeBSD$");
  34
  35 /* Communications core for Avago Technologies (LSI) MPT2 */
  36
  37 /* TODO Move headers to mpsvar */
  38 #include <sys/types.h>
  39 #include <sys/param.h>
  40 #include <sys/systm.h>
  41 #include <sys/kernel.h>
  42 #include <sys/selinfo.h>
  43 #include <sys/module.h>
  44 #include <sys/bus.h>
  45 #include <sys/conf.h>
  46 #include <sys/bio.h>
  47 #include <sys/malloc.h>
  48 #include <sys/uio.h>
  49 #include <sys/sysctl.h>
  50 #include <sys/endian.h>
  51 #include <sys/proc.h>
  52 #include <sys/queue.h>
  53 #include <sys/kthread.h>
  54 #include <sys/taskqueue.h>
  55 #include <sys/sbuf.h>
  56 #include <sys/reboot.h>
  57
  58 #include <machine/bus.h>
  59 #include <machine/resource.h>
  60 #include <sys/rman.h>
  61
  62 #include <machine/stdarg.h>
  63
  64 #include <cam/cam.h>
  65 #include <cam/cam_ccb.h>
  66 #include <cam/cam_debug.h>
  67 #include <cam/cam_sim.h>
  68 #include <cam/cam_xpt_sim.h>
  69 #include <cam/cam_xpt_periph.h>
  70 #include <cam/cam_periph.h>
  71 #include <cam/scsi/scsi_all.h>
  72 #include <cam/scsi/scsi_message.h>
  73
  74 #include <dev/mps/mpi/mpi2_type.h>
  75 #include <dev/mps/mpi/mpi2.h>
  76 #include <dev/mps/mpi/mpi2_ioc.h>
  77 #include <dev/mps/mpi/mpi2_sas.h>
  78 #include <dev/mps/mpi/mpi2_cnfg.h>
  79 #include <dev/mps/mpi/mpi2_init.h>
  80 #include <dev/mps/mpi/mpi2_raid.h>
  81 #include <dev/mps/mpi/mpi2_tool.h>
  82 #include <dev/mps/mps_ioctl.h>
  83 #include <dev/mps/mpsvar.h>
  84 #include <dev/mps/mps_table.h>
  85 #include <dev/mps/mps_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 mps_fw_event_work {
  92         u16                     event;
  93         void                    *event_data;
  94         TAILQ_ENTRY(mps_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 mpssas_fw_work(struct mps_softc *sc,
 119     struct mps_fw_event_work *fw_event);
 120 static void mpssas_fw_event_free(struct mps_softc *,
 121     struct mps_fw_event_work *);
 122 static int mpssas_add_device(struct mps_softc *sc, u16 handle, u8 linkrate);
 123 static int mpssas_get_sata_identify(struct mps_softc *sc, u16 handle,
 124     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz,
 125     u32 devinfo);
 126 static void mpssas_ata_id_timeout(struct mps_softc *, struct mps_command *);
 127 int mpssas_get_sas_address_for_sata_disk(struct mps_softc *sc,
 128     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD);
 129 static int mpssas_volume_add(struct mps_softc *sc,
 130     u16 handle);
 131 static void mpssas_SSU_to_SATA_devices(struct mps_softc *sc, int howto);
 132 static void mpssas_stop_unit_done(struct cam_periph *periph,
 133     union ccb *done_ccb);
 134
 135 void
 136 mpssas_evt_handler(struct mps_softc *sc, uintptr_t data,
 137     MPI2_EVENT_NOTIFICATION_REPLY *event)
 138 {
 139         struct mps_fw_event_work *fw_event;
 140         u16 sz;
 141
 142         mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
 143         MPS_DPRINT_EVENT(sc, sas, event);
 144         mpssas_record_event(sc, event);
 145
 146         fw_event = malloc(sizeof(struct mps_fw_event_work), M_MPT2,
 147              M_ZERO|M_NOWAIT);
 148         if (!fw_event) {
 149                 printf("%s: allocate failed for fw_event\n", __func__);
 150                 return;
 151         }
 152         sz = le16toh(event->EventDataLength) * 4;
 153         fw_event->event_data = malloc(sz, M_MPT2, M_ZERO|M_NOWAIT);
 154         if (!fw_event->event_data) {
 155                 printf("%s: allocate failed for event_data\n", __func__);
 156                 free(fw_event, M_MPT2);
 157                 return;
 158         }
 159
 160         bcopy(event->EventData, fw_event->event_data, sz);
 161         fw_event->event = event->Event;
 162         if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
 163             event->Event == MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE ||
 164             event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
 165             sc->track_mapping_events)
 166                 sc->pending_map_events++;
 167
 168         /*
 169          * When wait_for_port_enable flag is set, make sure that all the events
 170          * are processed. Increment the startup_refcount and decrement it after
 171          * events are processed.
 172          */
 173         if ((event->Event == MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST ||
 174             event->Event == MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST) &&
 175             sc->wait_for_port_enable)
 176                 mpssas_startup_increment(sc->sassc);
 177
 178         TAILQ_INSERT_TAIL(&sc->sassc->ev_queue, fw_event, ev_link);
 179         taskqueue_enqueue(sc->sassc->ev_tq, &sc->sassc->ev_task);
 180
 181 }
 182
 183 static void
 184 mpssas_fw_event_free(struct mps_softc *sc, struct mps_fw_event_work *fw_event)
 185 {
 186
 187         free(fw_event->event_data, M_MPT2);
 188         free(fw_event, M_MPT2);
 189 }
 190
 191 /**
 192  * _mps_fw_work - delayed task for processing firmware events
 193  * @sc: per adapter object
 194  * @fw_event: The fw_event_work object
 195  * Context: user.
 196  *
 197  * Return nothing.
 198  */
 199 static void
 200 mpssas_fw_work(struct mps_softc *sc, struct mps_fw_event_work *fw_event)
 201 {
 202         struct mpssas_softc *sassc;
 203         sassc = sc->sassc;
 204
 205         mps_dprint(sc, MPS_EVENT, "(%d)->(%s) Working on  Event: [%x]\n",
 206                         event_count++,__func__,fw_event->event);
 207         switch (fw_event->event) {
 208         case MPI2_EVENT_SAS_TOPOLOGY_CHANGE_LIST:
 209         {
 210                 MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *data;
 211                 MPI2_EVENT_SAS_TOPO_PHY_ENTRY *phy;
 212                 int i;
 213
 214                 data = (MPI2_EVENT_DATA_SAS_TOPOLOGY_CHANGE_LIST *)
 215                     fw_event->event_data;
 216
 217                 mps_mapping_topology_change_event(sc, fw_event->event_data);
 218
 219                 for (i = 0; i < data->NumEntries; i++) {
 220                         phy = &data->PHY[i];
 221                         switch (phy->PhyStatus & MPI2_EVENT_SAS_TOPO_RC_MASK) {
 222                         case MPI2_EVENT_SAS_TOPO_RC_TARG_ADDED:
 223                                 if (mpssas_add_device(sc,
 224                                     le16toh(phy->AttachedDevHandle),
 225                                     phy->LinkRate)){
 226                                         mps_dprint(sc, MPS_ERROR, "%s: "
 227                                             "failed to add device with handle "
 228                                             "0x%x\n", __func__,
 229                                             le16toh(phy->AttachedDevHandle));
 230                                         mpssas_prepare_remove(sassc, le16toh(
 231                                                 phy->AttachedDevHandle));
 232                                 }
 233                                 break;
 234                         case MPI2_EVENT_SAS_TOPO_RC_TARG_NOT_RESPONDING:
 235                                 mpssas_prepare_remove(sassc,le16toh(
 236                                         phy->AttachedDevHandle));
 237                                 break;
 238                         case MPI2_EVENT_SAS_TOPO_RC_PHY_CHANGED:
 239                         case MPI2_EVENT_SAS_TOPO_RC_NO_CHANGE:
 240                         case MPI2_EVENT_SAS_TOPO_RC_DELAY_NOT_RESPONDING:
 241                         default:
 242                                 break;
 243                         }
 244                 }
 245                 /*
 246                  * refcount was incremented for this event in
 247                  * mpssas_evt_handler.  Decrement it here because the event has
 248                  * been processed.
 249                  */
 250                 mpssas_startup_decrement(sassc);
 251                 break;
 252         }
 253         case MPI2_EVENT_SAS_DISCOVERY:
 254         {
 255                 MPI2_EVENT_DATA_SAS_DISCOVERY *data;
 256
 257                 data = (MPI2_EVENT_DATA_SAS_DISCOVERY *)fw_event->event_data;
 258
 259                 if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_STARTED)
 260                         mps_dprint(sc, MPS_TRACE,"SAS discovery start event\n");
 261                 if (data->ReasonCode & MPI2_EVENT_SAS_DISC_RC_COMPLETED) {
 262                         mps_dprint(sc, MPS_TRACE,"SAS discovery stop event\n");
 263                         sassc->flags &= ~MPSSAS_IN_DISCOVERY;
 264                         mpssas_discovery_end(sassc);
 265                 }
 266                 break;
 267         }
 268         case MPI2_EVENT_SAS_ENCL_DEVICE_STATUS_CHANGE:
 269         {
 270                 Mpi2EventDataSasEnclDevStatusChange_t *data;
 271                 data = (Mpi2EventDataSasEnclDevStatusChange_t *)
 272                     fw_event->event_data;
 273                 mps_mapping_enclosure_dev_status_change_event(sc,
 274                     fw_event->event_data);
 275                 break;
 276         }
 277         case MPI2_EVENT_IR_CONFIGURATION_CHANGE_LIST:
 278         {
 279                 Mpi2EventIrConfigElement_t *element;
 280                 int i;
 281                 u8 foreign_config;
 282                 Mpi2EventDataIrConfigChangeList_t *event_data;
 283                 struct mpssas_target *targ;
 284                 unsigned int id;
 285
 286                 event_data = fw_event->event_data;
 287                 foreign_config = (le32toh(event_data->Flags) &
 288                     MPI2_EVENT_IR_CHANGE_FLAGS_FOREIGN_CONFIG) ? 1 : 0;
 289
 290                 element =
 291                     (Mpi2EventIrConfigElement_t *)&event_data->ConfigElement[0];
 292                 id = mps_mapping_get_raid_tid_from_handle(sc,
 293                     element->VolDevHandle);
 294
 295                 mps_mapping_ir_config_change_event(sc, event_data);
 296
 297                 for (i = 0; i < event_data->NumElements; i++, element++) {
 298                         switch (element->ReasonCode) {
 299                         case MPI2_EVENT_IR_CHANGE_RC_VOLUME_CREATED:
 300                         case MPI2_EVENT_IR_CHANGE_RC_ADDED:
 301                                 if (!foreign_config) {
 302                                         if (mpssas_volume_add(sc,
 303                                             le16toh(element->VolDevHandle))){
 304                                                 printf("%s: failed to add RAID "
 305                                                     "volume with handle 0x%x\n",
 306                                                     __func__, le16toh(element->
 307                                                     VolDevHandle));
 308                                         }
 309                                 }
 310                                 break;
 311                         case MPI2_EVENT_IR_CHANGE_RC_VOLUME_DELETED:
 312                         case MPI2_EVENT_IR_CHANGE_RC_REMOVED:
 313                                 /*
 314                                  * Rescan after volume is deleted or removed.
 315                                  */
 316                                 if (!foreign_config) {
 317                                         if (id == MPS_MAP_BAD_ID) {
 318                                                 printf("%s: could not get ID "
 319                                                     "for volume with handle "
 320                                                     "0x%04x\n", __func__,
 321                                                     le16toh(element->VolDevHandle));
 322                                                 break;
 323                                         }
 324
 325                                         targ = &sassc->targets[id];
 326                                         targ->handle = 0x0;
 327                                         targ->encl_slot = 0x0;
 328                                         targ->encl_handle = 0x0;
 329                                         targ->exp_dev_handle = 0x0;
 330                                         targ->phy_num = 0x0;
 331                                         targ->linkrate = 0x0;
 332                                         mpssas_rescan_target(sc, targ);
 333                                         printf("RAID target id 0x%x removed\n",
 334                                             targ->tid);
 335                                 }
 336                                 break;
 337                         case MPI2_EVENT_IR_CHANGE_RC_PD_CREATED:
 338                         case MPI2_EVENT_IR_CHANGE_RC_HIDE:
 339                                 /*
 340                                  * Phys Disk of a volume has been created.  Hide
 341                                  * it from the OS.
 342                                  */
 343                                 targ = mpssas_find_target_by_handle(sassc, 0,
 344                                     element->PhysDiskDevHandle);
 345                                 if (targ == NULL)
 346                                         break;
 347
 348                                 /*
 349                                  * Set raid component flags only if it is not
 350                                  * WD. OR WrapDrive with
 351                                  * WD_HIDE_ALWAYS/WD_HIDE_IF_VOLUME is set in
 352                                  * NVRAM
 353                                  */
 354                                 if((!sc->WD_available) ||
 355                                 ((sc->WD_available &&
 356                                 (sc->WD_hide_expose == MPS_WD_HIDE_ALWAYS)) ||
 357                                 (sc->WD_valid_config && (sc->WD_hide_expose ==
 358                                 MPS_WD_HIDE_IF_VOLUME)))) {
 359                                         targ->flags |= MPS_TARGET_FLAGS_RAID_COMPONENT;
 360                                 }
 361                                 mpssas_rescan_target(sc, targ);
 362
 363                                 break;
 364                         case MPI2_EVENT_IR_CHANGE_RC_PD_DELETED:
 365                                 /*
 366                                  * Phys Disk of a volume has been deleted.
 367                                  * Expose it to the OS.
 368                                  */
 369                                 if (mpssas_add_device(sc,
 370                                     le16toh(element->PhysDiskDevHandle), 0)){
 371                                         printf("%s: failed to add device with "
 372                                             "handle 0x%x\n", __func__,
 373                                             le16toh(element->PhysDiskDevHandle));
 374                                         mpssas_prepare_remove(sassc, le16toh(element->
 375                                             PhysDiskDevHandle));
 376                                 }
 377                                 break;
 378                         }
 379                 }
 380                 /*
 381                  * refcount was incremented for this event in
 382                  * mpssas_evt_handler.  Decrement it here because the event has
 383                  * been processed.
 384                  */
 385                 mpssas_startup_decrement(sassc);
 386                 break;
 387         }
 388         case MPI2_EVENT_IR_VOLUME:
 389         {
 390                 Mpi2EventDataIrVolume_t *event_data = fw_event->event_data;
 391
 392                 /*
 393                  * Informational only.
 394                  */
 395                 mps_dprint(sc, MPS_EVENT, "Received IR Volume event:\n");
 396                 switch (event_data->ReasonCode) {
 397                 case MPI2_EVENT_IR_VOLUME_RC_SETTINGS_CHANGED:
 398                         mps_dprint(sc, MPS_EVENT, "   Volume Settings "
 399                             "changed from 0x%x to 0x%x for Volome with "
 400                             "handle 0x%x", le32toh(event_data->PreviousValue),
 401                             le32toh(event_data->NewValue),
 402                             le16toh(event_data->VolDevHandle));
 403                         break;
 404                 case MPI2_EVENT_IR_VOLUME_RC_STATUS_FLAGS_CHANGED:
 405                         mps_dprint(sc, MPS_EVENT, "   Volume Status "
 406                             "changed from 0x%x to 0x%x for Volome with "
 407                             "handle 0x%x", le32toh(event_data->PreviousValue),
 408                             le32toh(event_data->NewValue),
 409                             le16toh(event_data->VolDevHandle));
 410                         break;
 411                 case MPI2_EVENT_IR_VOLUME_RC_STATE_CHANGED:
 412                         mps_dprint(sc, MPS_EVENT, "   Volume State "
 413                             "changed from 0x%x to 0x%x for Volome with "
 414                             "handle 0x%x", le32toh(event_data->PreviousValue),
 415                             le32toh(event_data->NewValue),
 416                             le16toh(event_data->VolDevHandle));
 417                                 u32 state;
 418                                 struct mpssas_target *targ;
 419                                 state = le32toh(event_data->NewValue);
 420                                 switch (state) {
 421                                 case MPI2_RAID_VOL_STATE_MISSING:
 422                                 case MPI2_RAID_VOL_STATE_FAILED:
 423                                         mpssas_prepare_volume_remove(sassc, event_data->
 424                                                         VolDevHandle);
 425                                         break;
 426
 427                                 case MPI2_RAID_VOL_STATE_ONLINE:
 428                                 case MPI2_RAID_VOL_STATE_DEGRADED:
 429                                 case MPI2_RAID_VOL_STATE_OPTIMAL:
 430                                         targ = mpssas_find_target_by_handle(sassc, 0, event_data->VolDevHandle);
 431                                         if (targ) {
 432                                                 printf("%s %d: Volume handle 0x%x is already added \n",
 433                                                                 __func__, __LINE__ , event_data->VolDevHandle);
 434                                                 break;
 435                                         }
 436                                         if (mpssas_volume_add(sc, le16toh(event_data->VolDevHandle))) {
 437                                                 printf("%s: failed to add RAID "
 438                                                         "volume with handle 0x%x\n",
 439                                                         __func__, le16toh(event_data->
 440                                                         VolDevHandle));
 441                                         }
 442                                         break;
 443                                 default:
 444                                         break;
 445                                 }
 446                         break;
 447                 default:
 448                         break;
 449                 }
 450                 break;
 451         }
 452         case MPI2_EVENT_IR_PHYSICAL_DISK:
 453         {
 454                 Mpi2EventDataIrPhysicalDisk_t *event_data =
 455                     fw_event->event_data;
 456                 struct mpssas_target *targ;
 457
 458                 /*
 459                  * Informational only.
 460                  */
 461                 mps_dprint(sc, MPS_EVENT, "Received IR Phys Disk event:\n");
 462                 switch (event_data->ReasonCode) {
 463                 case MPI2_EVENT_IR_PHYSDISK_RC_SETTINGS_CHANGED:
 464                         mps_dprint(sc, MPS_EVENT, "   Phys Disk Settings "
 465                             "changed from 0x%x to 0x%x for Phys Disk Number "
 466                             "%d and handle 0x%x at Enclosure handle 0x%x, Slot "
 467                             "%d", le32toh(event_data->PreviousValue),
 468                             le32toh(event_data->NewValue),
 469                                 event_data->PhysDiskNum,
 470                             le16toh(event_data->PhysDiskDevHandle),
 471                             le16toh(event_data->EnclosureHandle), le16toh(event_data->Slot));
 472                         break;
 473                 case MPI2_EVENT_IR_PHYSDISK_RC_STATUS_FLAGS_CHANGED:
 474                         mps_dprint(sc, MPS_EVENT, "   Phys Disk Status changed "
 475                             "from 0x%x to 0x%x for Phys Disk Number %d and "
 476                             "handle 0x%x at Enclosure handle 0x%x, Slot %d",
 477                                 le32toh(event_data->PreviousValue),
 478                             le32toh(event_data->NewValue), event_data->PhysDiskNum,
 479                             le16toh(event_data->PhysDiskDevHandle),
 480                             le16toh(event_data->EnclosureHandle), le16toh(event_data->Slot));
 481                         break;
 482                 case MPI2_EVENT_IR_PHYSDISK_RC_STATE_CHANGED:
 483                         mps_dprint(sc, MPS_EVENT, "   Phys Disk State changed "
 484                             "from 0x%x to 0x%x for Phys Disk Number %d and "
 485                             "handle 0x%x at Enclosure handle 0x%x, Slot %d",
 486                                 le32toh(event_data->PreviousValue),
 487                             le32toh(event_data->NewValue), event_data->PhysDiskNum,
 488                             le16toh(event_data->PhysDiskDevHandle),
 489                             le16toh(event_data->EnclosureHandle), le16toh(event_data->Slot));
 490                         switch (event_data->NewValue) {
 491                                 case MPI2_RAID_PD_STATE_ONLINE:
 492                                 case MPI2_RAID_PD_STATE_DEGRADED:
 493                                 case MPI2_RAID_PD_STATE_REBUILDING:
 494                                 case MPI2_RAID_PD_STATE_OPTIMAL:
 495                                 case MPI2_RAID_PD_STATE_HOT_SPARE:
 496                                         targ = mpssas_find_target_by_handle(sassc, 0,
 497                                                         event_data->PhysDiskDevHandle);
 498                                         if (targ) {
 499                                                 if(!sc->WD_available) {
 500                                                         targ->flags |= MPS_TARGET_FLAGS_RAID_COMPONENT;
 501                                                         printf("%s %d: Found Target for handle 0x%x.  \n",
 502                                                         __func__, __LINE__ , event_data->PhysDiskDevHandle);
 503                                                 } else if ((sc->WD_available &&
 504                                                         (sc->WD_hide_expose == MPS_WD_HIDE_ALWAYS)) ||
 505                                                         (sc->WD_valid_config && (sc->WD_hide_expose ==
 506                                                         MPS_WD_HIDE_IF_VOLUME))) {
 507                                                         targ->flags |= MPS_TARGET_FLAGS_RAID_COMPONENT;
 508                                                         printf("%s %d: WD: Found Target for handle 0x%x.  \n",
 509                                                         __func__, __LINE__ , event_data->PhysDiskDevHandle);
 510                                                 }
 511                                         }
 512                                 break;
 513                                 case MPI2_RAID_PD_STATE_OFFLINE:
 514                                 case MPI2_RAID_PD_STATE_NOT_CONFIGURED:
 515                                 case MPI2_RAID_PD_STATE_NOT_COMPATIBLE:
 516                                 default:
 517                                         targ = mpssas_find_target_by_handle(sassc, 0,
 518                                                         event_data->PhysDiskDevHandle);
 519                                         if (targ) {
 520                                                 targ->flags |= ~MPS_TARGET_FLAGS_RAID_COMPONENT;
 521                                                 printf("%s %d: Found Target for handle 0x%x.  \n",
 522                                                 __func__, __LINE__ , event_data->PhysDiskDevHandle);
 523                                         }
 524                                 break;
 525                         }
 526                 default:
 527                         break;
 528                 }
 529                 break;
 530         }
 531         case MPI2_EVENT_IR_OPERATION_STATUS:
 532         {
 533                 Mpi2EventDataIrOperationStatus_t *event_data =
 534                     fw_event->event_data;
 535
 536                 /*
 537                  * Informational only.
 538                  */
 539                 mps_dprint(sc, MPS_EVENT, "Received IR Op Status event:\n");
 540                 mps_dprint(sc, MPS_EVENT, "   RAID Operation of %d is %d "
 541                     "percent complete for Volume with handle 0x%x",
 542                     event_data->RAIDOperation, event_data->PercentComplete,
 543                     le16toh(event_data->VolDevHandle));
 544                 break;
 545         }
 546         case MPI2_EVENT_LOG_ENTRY_ADDED:
 547         {
 548                 pMpi2EventDataLogEntryAdded_t   logEntry;
 549                 uint16_t                        logQualifier;
 550                 uint8_t                         logCode;
 551
 552                 logEntry = (pMpi2EventDataLogEntryAdded_t)fw_event->event_data;
 553                 logQualifier = logEntry->LogEntryQualifier;
 554
 555                 if (logQualifier == MPI2_WD_LOG_ENTRY) {
 556                         logCode = logEntry->LogData[0];
 557
 558                         switch (logCode) {
 559                         case MPI2_WD_SSD_THROTTLING:
 560                                 printf("WarpDrive Warning: IO Throttling has "
 561                                     "occurred in the WarpDrive subsystem. "
 562                                     "Check WarpDrive documentation for "
 563                                     "additional details\n");
 564                                 break;
 565                         case MPI2_WD_DRIVE_LIFE_WARN:
 566                                 printf("WarpDrive Warning: Program/Erase "
 567                                     "Cycles for the WarpDrive subsystem in "
 568                                     "degraded range. Check WarpDrive "
 569                                     "documentation for additional details\n");
 570                                 break;
 571                         case MPI2_WD_DRIVE_LIFE_DEAD:
 572                                 printf("WarpDrive Fatal Error: There are no "
 573                                     "Program/Erase Cycles for the WarpDrive "
 574                                     "subsystem. The storage device will be in "
 575                                     "read-only mode. Check WarpDrive "
 576                                     "documentation for additional details\n");
 577                                 break;
 578                         case MPI2_WD_RAIL_MON_FAIL:
 579                                 printf("WarpDrive Fatal Error: The Backup Rail "
 580                                     "Monitor has failed on the WarpDrive "
 581                                     "subsystem. Check WarpDrive documentation "
 582                                     "for additional details\n");
 583                                 break;
 584                         default:
 585                                 break;
 586                         }
 587                 }
 588                 break;
 589         }
 590         case MPI2_EVENT_SAS_DEVICE_STATUS_CHANGE:
 591         case MPI2_EVENT_SAS_BROADCAST_PRIMITIVE:
 592         default:
 593                 mps_dprint(sc, MPS_TRACE,"Unhandled event 0x%0X\n",
 594                     fw_event->event);
 595                 break;
 596
 597         }
 598         mps_dprint(sc, MPS_EVENT, "(%d)->(%s) Event Free: [%x]\n",event_count,__func__, fw_event->event);
 599         mpssas_fw_event_free(sc, fw_event);
 600 }
 601
 602 void
 603 mpssas_firmware_event_work(void *arg, int pending)
 604 {
 605         struct mps_fw_event_work *fw_event;
 606         struct mps_softc *sc;
 607
 608         sc = (struct mps_softc *)arg;
 609         mps_lock(sc);
 610         while ((fw_event = TAILQ_FIRST(&sc->sassc->ev_queue)) != NULL) {
 611                 TAILQ_REMOVE(&sc->sassc->ev_queue, fw_event, ev_link);
 612                 mpssas_fw_work(sc, fw_event);
 613         }
 614         mps_unlock(sc);
 615 }
 616
 617 static int
 618 mpssas_add_device(struct mps_softc *sc, u16 handle, u8 linkrate){
 619         char devstring[80];
 620         struct mpssas_softc *sassc;
 621         struct mpssas_target *targ;
 622         Mpi2ConfigReply_t mpi_reply;
 623         Mpi2SasDevicePage0_t config_page;
 624         uint64_t sas_address;
 625         uint64_t parent_sas_address = 0;
 626         u32 device_info, parent_devinfo = 0;
 627         unsigned int id;
 628         int ret = 1, error = 0, i;
 629         struct mpssas_lun *lun;
 630         u8 is_SATA_SSD = 0;
 631         struct mps_command *cm;
 632
 633         sassc = sc->sassc;
 634         mpssas_startup_increment(sassc);
 635         if (mps_config_get_sas_device_pg0(sc, &mpi_reply, &config_page,
 636             MPI2_SAS_DEVICE_PGAD_FORM_HANDLE, handle) != 0) {
 637                 mps_dprint(sc, MPS_INFO|MPS_MAPPING|MPS_FAULT,
 638                     "Error reading SAS device %#x page0, iocstatus= 0x%x\n",
 639                     handle, mpi_reply.IOCStatus);
 640                 error = ENXIO;
 641                 goto out;
 642         }
 643
 644         device_info = le32toh(config_page.DeviceInfo);
 645
 646         if (((device_info & MPI2_SAS_DEVICE_INFO_SMP_TARGET) == 0)
 647          && (le16toh(config_page.ParentDevHandle) != 0)) {
 648                 Mpi2ConfigReply_t tmp_mpi_reply;
 649                 Mpi2SasDevicePage0_t parent_config_page;
 650
 651                 if (mps_config_get_sas_device_pg0(sc, &tmp_mpi_reply,
 652                     &parent_config_page, MPI2_SAS_DEVICE_PGAD_FORM_HANDLE,
 653                     le16toh(config_page.ParentDevHandle)) != 0) {
 654                         mps_dprint(sc, MPS_MAPPING|MPS_FAULT,
 655                             "Error reading parent SAS device %#x page0, "
 656                             "iocstatus= 0x%x\n",
 657                             le16toh(config_page.ParentDevHandle),
 658                             tmp_mpi_reply.IOCStatus);
 659                 } else {
 660                         parent_sas_address = parent_config_page.SASAddress.High;
 661                         parent_sas_address = (parent_sas_address << 32) |
 662                                 parent_config_page.SASAddress.Low;
 663                         parent_devinfo = le32toh(parent_config_page.DeviceInfo);
 664                 }
 665         }
 666         /* TODO Check proper endianness */
 667         sas_address = config_page.SASAddress.High;
 668         sas_address = (sas_address << 32) | config_page.SASAddress.Low;
 669         mps_dprint(sc, MPS_MAPPING, "Handle 0x%04x SAS Address from SAS device "
 670             "page0 = %jx\n", handle, sas_address);
 671
 672         /*
 673          * Always get SATA Identify information because this is used to
 674          * determine if Start/Stop Unit should be sent to the drive when the
 675          * system is shutdown.
 676          */
 677         if (device_info & MPI2_SAS_DEVICE_INFO_SATA_DEVICE) {
 678                 ret = mpssas_get_sas_address_for_sata_disk(sc, &sas_address,
 679                     handle, device_info, &is_SATA_SSD);
 680                 if (ret) {
 681                         mps_dprint(sc, MPS_MAPPING|MPS_ERROR,
 682                             "%s: failed to get disk type (SSD or HDD) for SATA "
 683                             "device with handle 0x%04x\n",
 684                             __func__, handle);
 685                 } else {
 686                         mps_dprint(sc, MPS_MAPPING, "Handle 0x%04x SAS Address "
 687                             "from SATA device = %jx\n", handle, sas_address);
 688                 }
 689         }
 690
 691         /*
 692          * use_phynum:
 693          *  1 - use the PhyNum field as a fallback to the mapping logic
 694          *  0 - never use the PhyNum field
 695          * -1 - only use the PhyNum field
 696          *
 697          * Note that using the Phy number to map a device can cause device adds
 698          * to fail if multiple enclosures/expanders are in the topology. For
 699          * example, if two devices are in the same slot number in two different
 700          * enclosures within the topology, only one of those devices will be
 701          * added. PhyNum mapping should not be used if multiple enclosures are
 702          * in the topology.
 703          */
 704         id = MPS_MAP_BAD_ID;
 705         if (sc->use_phynum != -1)
 706                 id = mps_mapping_get_tid(sc, sas_address, handle);
 707         if (id == MPS_MAP_BAD_ID) {
 708                 if ((sc->use_phynum == 0)
 709                  || ((id = config_page.PhyNum) > sassc->maxtargets)) {
 710                         mps_dprint(sc, MPS_INFO, "failure at %s:%d/%s()! "
 711                             "Could not get ID for device with handle 0x%04x\n",
 712                             __FILE__, __LINE__, __func__, handle);
 713                         error = ENXIO;
 714                         goto out;
 715                 }
 716         }
 717         mps_dprint(sc, MPS_MAPPING, "%s: Target ID for added device is %d.\n",
 718             __func__, id);
 719
 720         /*
 721          * Only do the ID check and reuse check if the target is not from a
 722          * RAID Component. For Physical Disks of a Volume, the ID will be reused
 723          * when a volume is deleted because the mapping entry for the PD will
 724          * still be in the mapping table. The ID check should not be done here
 725          * either since this PD is already being used.
 726          */
 727         targ = &sassc->targets[id];
 728         if (!(targ->flags & MPS_TARGET_FLAGS_RAID_COMPONENT)) {
 729                 if (mpssas_check_id(sassc, id) != 0) {
 730                         mps_dprint(sc, MPS_MAPPING|MPS_INFO,
 731                             "Excluding target id %d\n", id);
 732                         error = ENXIO;
 733                         goto out;
 734                 }
 735
 736                 if (targ->handle != 0x0) {
 737                         mps_dprint(sc, MPS_MAPPING, "Attempting to reuse "
 738                             "target id %d handle 0x%04x\n", id, targ->handle);
 739                         error = ENXIO;
 740                         goto out;
 741                 }
 742         }
 743
 744         targ->devinfo = device_info;
 745         targ->devname = le32toh(config_page.DeviceName.High);
 746         targ->devname = (targ->devname << 32) |
 747             le32toh(config_page.DeviceName.Low);
 748         targ->encl_handle = le16toh(config_page.EnclosureHandle);
 749         targ->encl_slot = le16toh(config_page.Slot);
 750         targ->handle = handle;
 751         targ->parent_handle = le16toh(config_page.ParentDevHandle);
 752         targ->sasaddr = mps_to_u64(&config_page.SASAddress);
 753         targ->parent_sasaddr = le64toh(parent_sas_address);
 754         targ->parent_devinfo = parent_devinfo;
 755         targ->tid = id;
 756         targ->linkrate = (linkrate>>4);
 757         targ->flags = 0;
 758         if (is_SATA_SSD) {
 759                 targ->flags = MPS_TARGET_IS_SATA_SSD;
 760         }
 761         TAILQ_INIT(&targ->commands);
 762         TAILQ_INIT(&targ->timedout_commands);
 763         while(!SLIST_EMPTY(&targ->luns)) {
 764                 lun = SLIST_FIRST(&targ->luns);
 765                 SLIST_REMOVE_HEAD(&targ->luns, lun_link);
 766                 free(lun, M_MPT2);
 767         }
 768         SLIST_INIT(&targ->luns);
 769
 770         mps_describe_devinfo(targ->devinfo, devstring, 80);
 771         mps_dprint(sc, MPS_MAPPING, "Found device <%s> <%s> <0x%04x> <%d/%d>\n",
 772             devstring, mps_describe_table(mps_linkrate_names, targ->linkrate),
 773             targ->handle, targ->encl_handle, targ->encl_slot);
 774
 775         mpssas_rescan_target(sc, targ);
 776         mps_dprint(sc, MPS_MAPPING, "Target id 0x%x added\n", targ->tid);
 777
 778         /*
 779          * Check all commands to see if the SATA_ID_TIMEOUT flag has been set.
 780          * If so, send a Target Reset TM to the target that was just created.
 781          * An Abort Task TM should be used instead of a Target Reset, but that
 782          * would be much more difficult because targets have not been fully
 783          * discovered yet, and LUN's haven't been setup.  So, just reset the
 784          * target instead of the LUN.
 785          */
 786         for (i = 1; i < sc->num_reqs; i++) {
 787                 cm = &sc->commands[i];
 788                 if (cm->cm_flags & MPS_CM_FLAGS_SATA_ID_TIMEOUT) {
 789                         targ->timeouts++;
 790                         cm->cm_flags |= MPS_CM_FLAGS_TIMEDOUT;
 791
 792                         if ((targ->tm = mpssas_alloc_tm(sc)) != NULL) {
 793                                 mps_dprint(sc, MPS_INFO, "%s: sending Target "
 794                                     "Reset for stuck SATA identify command "
 795                                     "(cm = %p)\n", __func__, cm);
 796                                 targ->tm->cm_targ = targ;
 797                                 mpssas_send_reset(sc, targ->tm,
 798                                     MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET);
 799                         } else {
 800                                 mps_dprint(sc, MPS_ERROR, "Failed to allocate "
 801                                     "tm for Target Reset after SATA ID command "
 802                                     "timed out (cm %p)\n", cm);
 803                         }
 804                         /*
 805                          * No need to check for more since the target is
 806                          * already being reset.
 807                          */
 808                         break;
 809                 }
 810         }
 811 out:
 812         /*
 813          * Free the commands that may not have been freed from the SATA ID call
 814          */
 815         for (i = 1; i < sc->num_reqs; i++) {
 816                 cm = &sc->commands[i];
 817                 if (cm->cm_flags & MPS_CM_FLAGS_SATA_ID_TIMEOUT) {
 818                         free(cm->cm_data, M_MPT2);
 819                         mps_free_command(sc, cm);
 820                 }
 821         }
 822         mpssas_startup_decrement(sassc);
 823         return (error);
 824 }
 825
 826 int
 827 mpssas_get_sas_address_for_sata_disk(struct mps_softc *sc,
 828     u64 *sas_address, u16 handle, u32 device_info, u8 *is_SATA_SSD)
 829 {
 830         Mpi2SataPassthroughReply_t mpi_reply;
 831         int i, rc, try_count;
 832         u32 *bufferptr;
 833         union _sata_sas_address hash_address;
 834         struct _ata_identify_device_data ata_identify;
 835         u8 buffer[MPT2SAS_MN_LEN + MPT2SAS_SN_LEN];
 836         u32 ioc_status;
 837         u8 sas_status;
 838
 839         memset(&ata_identify, 0, sizeof(ata_identify));
 840         try_count = 0;
 841         do {
 842                 rc = mpssas_get_sata_identify(sc, handle, &mpi_reply,
 843                     (char *)&ata_identify, sizeof(ata_identify), device_info);
 844                 try_count++;
 845                 ioc_status = le16toh(mpi_reply.IOCStatus)
 846                     & MPI2_IOCSTATUS_MASK;
 847                 sas_status = mpi_reply.SASStatus;
 848                 switch (ioc_status) {
 849                 case MPI2_IOCSTATUS_SUCCESS:
 850                         break;
 851                 case MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR:
 852                         /* No sense sleeping.  this error won't get better */
 853                         break;
 854                 default:
 855                         if (sc->spinup_wait_time > 0) {
 856                                 mps_dprint(sc, MPS_INFO, "Sleeping %d seconds "
 857                                     "after SATA ID error to wait for spinup\n",
 858                                     sc->spinup_wait_time);
 859                                 msleep(&sc->msleep_fake_chan, &sc->mps_mtx, 0,
 860                                     "mpsid", sc->spinup_wait_time * hz);
 861                         }
 862                 }
 863         } while (((rc && (rc != EWOULDBLOCK)) ||
 864                  (ioc_status &&
 865                   (ioc_status != MPI2_IOCSTATUS_SCSI_PROTOCOL_ERROR))
 866                || sas_status) && (try_count < 5));
 867
 868         if (rc == 0 && !ioc_status && !sas_status) {
 869                 mps_dprint(sc, MPS_MAPPING, "%s: got SATA identify "
 870                     "successfully for handle = 0x%x with try_count = %d\n",
 871                     __func__, handle, try_count);
 872         } else {
 873                 mps_dprint(sc, MPS_MAPPING, "%s: handle = 0x%x failed\n",
 874                     __func__, handle);
 875                 return -1;
 876         }
 877         /* Copy & byteswap the 40 byte model number to a buffer */
 878         for (i = 0; i < MPT2SAS_MN_LEN; i += 2) {
 879                 buffer[i] = ((u8 *)ata_identify.model_number)[i + 1];
 880                 buffer[i + 1] = ((u8 *)ata_identify.model_number)[i];
 881         }
 882         /* Copy & byteswap the 20 byte serial number to a buffer */
 883         for (i = 0; i < MPT2SAS_SN_LEN; i += 2) {
 884                 buffer[MPT2SAS_MN_LEN + i] =
 885                     ((u8 *)ata_identify.serial_number)[i + 1];
 886                 buffer[MPT2SAS_MN_LEN + i + 1] =
 887                     ((u8 *)ata_identify.serial_number)[i];
 888         }
 889         bufferptr = (u32 *)buffer;
 890         /* There are 60 bytes to hash down to 8. 60 isn't divisible by 8,
 891          * so loop through the first 56 bytes (7*8),
 892          * and then add in the last dword.
 893          */
 894         hash_address.word.low  = 0;
 895         hash_address.word.high = 0;
 896         for (i = 0; (i < ((MPT2SAS_MN_LEN+MPT2SAS_SN_LEN)/8)); i++) {
 897                 hash_address.word.low += *bufferptr;
 898                 bufferptr++;
 899                 hash_address.word.high += *bufferptr;
 900                 bufferptr++;
 901         }
 902         /* Add the last dword */
 903         hash_address.word.low += *bufferptr;
 904         /* Make sure the hash doesn't start with 5, because it could clash
 905          * with a SAS address. Change 5 to a D.
 906          */
 907         if ((hash_address.word.high & 0x000000F0) == (0x00000050))
 908                 hash_address.word.high |= 0x00000080;
 909         *sas_address = (u64)hash_address.wwid[0] << 56 |
 910             (u64)hash_address.wwid[1] << 48 | (u64)hash_address.wwid[2] << 40 |
 911             (u64)hash_address.wwid[3] << 32 | (u64)hash_address.wwid[4] << 24 |
 912             (u64)hash_address.wwid[5] << 16 | (u64)hash_address.wwid[6] <<  8 |
 913             (u64)hash_address.wwid[7];
 914         if (ata_identify.rotational_speed == 1) {
 915                 *is_SATA_SSD = 1;
 916         }
 917
 918         return 0;
 919 }
 920
 921 static int
 922 mpssas_get_sata_identify(struct mps_softc *sc, u16 handle,
 923     Mpi2SataPassthroughReply_t *mpi_reply, char *id_buffer, int sz, u32 devinfo)
 924 {
 925         Mpi2SataPassthroughRequest_t *mpi_request;
 926         Mpi2SataPassthroughReply_t *reply = NULL;
 927         struct mps_command *cm;
 928         char *buffer;
 929         int error = 0;
 930
 931         buffer = malloc( sz, M_MPT2, M_NOWAIT | M_ZERO);
 932         if (!buffer)
 933                 return ENOMEM;
 934
 935         if ((cm = mps_alloc_command(sc)) == NULL) {
 936                 free(buffer, M_MPT2);
 937                 return (EBUSY);
 938         }
 939         mpi_request = (MPI2_SATA_PASSTHROUGH_REQUEST *)cm->cm_req;
 940         bzero(mpi_request,sizeof(MPI2_SATA_PASSTHROUGH_REQUEST));
 941         mpi_request->Function = MPI2_FUNCTION_SATA_PASSTHROUGH;
 942         mpi_request->VF_ID = 0;
 943         mpi_request->DevHandle = htole16(handle);
 944         mpi_request->PassthroughFlags = (MPI2_SATA_PT_REQ_PT_FLAGS_PIO |
 945             MPI2_SATA_PT_REQ_PT_FLAGS_READ);
 946         mpi_request->DataLength = htole32(sz);
 947         mpi_request->CommandFIS[0] = 0x27;
 948         mpi_request->CommandFIS[1] = 0x80;
 949         mpi_request->CommandFIS[2] =  (devinfo &
 950             MPI2_SAS_DEVICE_INFO_ATAPI_DEVICE) ? 0xA1 : 0xEC;
 951         cm->cm_sge = &mpi_request->SGL;
 952         cm->cm_sglsize = sizeof(MPI2_SGE_IO_UNION);
 953         cm->cm_flags = MPS_CM_FLAGS_SGE_SIMPLE | MPS_CM_FLAGS_DATAIN;
 954         cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
 955         cm->cm_data = buffer;
 956         cm->cm_length = htole32(sz);
 957
 958         /*
 959          * Use a custom handler to avoid reinit'ing the controller on timeout.
 960          * This fixes a problem where the FW does not send a reply sometimes
 961          * when a bad disk is in the topology. So, this is used to timeout the
 962          * command so that processing can continue normally.
 963          */
 964         cm->cm_timeout_handler = mpssas_ata_id_timeout;
 965
 966         error = mps_wait_command(sc, &cm, MPS_ATA_ID_TIMEOUT, CAN_SLEEP);
 967
 968         /* mpssas_ata_id_timeout does not reset controller */
 969         KASSERT(cm != NULL, ("%s: surprise command freed", __func__));
 970
 971         reply = (Mpi2SataPassthroughReply_t *)cm->cm_reply;
 972         if (error || (reply == NULL)) {
 973                 /* FIXME */
 974                 /*
 975                  * If the request returns an error then we need to do a diag
 976                  * reset
 977                  */
 978                 mps_dprint(sc, MPS_INFO|MPS_FAULT|MPS_MAPPING,
 979                     "Request for SATA PASSTHROUGH page completed with error %d\n",
 980                     error);
 981                 error = ENXIO;
 982                 goto out;
 983         }
 984         bcopy(buffer, id_buffer, sz);
 985         bcopy(reply, mpi_reply, sizeof(Mpi2SataPassthroughReply_t));
 986         if ((le16toh(reply->IOCStatus) & MPI2_IOCSTATUS_MASK) !=
 987             MPI2_IOCSTATUS_SUCCESS) {
 988                 mps_dprint(sc, MPS_INFO|MPS_MAPPING|MPS_FAULT,
 989                     "Error reading device %#x SATA PASSTHRU; iocstatus= 0x%x\n",
 990                     handle, reply->IOCStatus);
 991                 error = ENXIO;
 992                 goto out;
 993         }
 994 out:
 995         /*
 996          * If the SATA_ID_TIMEOUT flag has been set for this command, don't free
 997          * it.  The command and buffer will be freed after sending an Abort
 998          * Task TM.
 999          */
1000         if ((cm->cm_flags & MPS_CM_FLAGS_SATA_ID_TIMEOUT) == 0) {
1001                 mps_free_command(sc, cm);
1002                 free(buffer, M_MPT2);
1003         }
1004         return (error);
1005 }
1006
1007 static void
1008 mpssas_ata_id_timeout(struct mps_softc *sc, struct mps_command *cm)
1009 {
1010
1011         mps_dprint(sc, MPS_INFO, "%s ATA ID command timeout cm %p sc %p\n",
1012             __func__, cm, sc);
1013
1014         /*
1015          * The Abort Task cannot be sent from here because the driver has not
1016          * completed setting up targets.  Instead, the command is flagged so
1017          * that special handling will be used to send the abort. Now that
1018          * this command has timed out, it's no longer in the queue.
1019          */
1020         cm->cm_flags |= MPS_CM_FLAGS_SATA_ID_TIMEOUT;
1021         cm->cm_state = MPS_CM_STATE_BUSY;
1022 }
1023
1024 static int
1025 mpssas_volume_add(struct mps_softc *sc, u16 handle)
1026 {
1027         struct mpssas_softc *sassc;
1028         struct mpssas_target *targ;
1029         u64 wwid;
1030         unsigned int id;
1031         int error = 0;
1032         struct mpssas_lun *lun;
1033
1034         sassc = sc->sassc;
1035         mpssas_startup_increment(sassc);
1036         /* wwid is endian safe */
1037         mps_config_get_volume_wwid(sc, handle, &wwid);
1038         if (!wwid) {
1039                 printf("%s: invalid WWID; cannot add volume to mapping table\n",
1040                     __func__);
1041                 error = ENXIO;
1042                 goto out;
1043         }
1044
1045         id = mps_mapping_get_raid_tid(sc, wwid, handle);
1046         if (id == MPS_MAP_BAD_ID) {
1047                 printf("%s: could not get ID for volume with handle 0x%04x and "
1048                     "WWID 0x%016llx\n", __func__, handle,
1049                     (unsigned long long)wwid);
1050                 error = ENXIO;
1051                 goto out;
1052         }
1053
1054         targ = &sassc->targets[id];
1055         targ->tid = id;
1056         targ->handle = handle;
1057         targ->devname = wwid;
1058         TAILQ_INIT(&targ->commands);
1059         TAILQ_INIT(&targ->timedout_commands);
1060         while(!SLIST_EMPTY(&targ->luns)) {
1061                 lun = SLIST_FIRST(&targ->luns);
1062                 SLIST_REMOVE_HEAD(&targ->luns, lun_link);
1063                 free(lun, M_MPT2);
1064         }
1065         SLIST_INIT(&targ->luns);
1066         mpssas_rescan_target(sc, targ);
1067         mps_dprint(sc, MPS_MAPPING, "RAID target id %d added (WWID = 0x%jx)\n",
1068             targ->tid, wwid);
1069 out:
1070         mpssas_startup_decrement(sassc);
1071         return (error);
1072 }
1073
1074 /**
1075  * mpssas_SSU_to_SATA_devices
1076  * @sc: per adapter object
1077  * @howto: mast of RB_* bits for how we're rebooting
1078  *
1079  * Looks through the target list and issues a StartStopUnit SCSI command to each
1080  * SATA direct-access device.  This helps to ensure that data corruption is
1081  * avoided when the system is being shut down.  This must be called after the IR
1082  * System Shutdown RAID Action is sent if in IR mode.
1083  *
1084  * Return nothing.
1085  */
1086 static void
1087 mpssas_SSU_to_SATA_devices(struct mps_softc *sc, int howto)
1088 {
1089         struct mpssas_softc *sassc = sc->sassc;
1090         union ccb *ccb;
1091         path_id_t pathid = cam_sim_path(sassc->sim);
1092         target_id_t targetid;
1093         struct mpssas_target *target;
1094         char path_str[64];
1095         int timeout;
1096
1097         /*
1098          * For each target, issue a StartStopUnit command to stop the device.
1099          */
1100         sc->SSU_started = TRUE;
1101         sc->SSU_refcount = 0;
1102         for (targetid = 0; targetid < sc->max_devices; targetid++) {
1103                 target = &sassc->targets[targetid];
1104                 if (target->handle == 0x0) {
1105                         continue;
1106                 }
1107
1108                 ccb = xpt_alloc_ccb_nowait();
1109                 if (ccb == NULL) {
1110                         mps_dprint(sc, MPS_FAULT, "Unable to alloc CCB to stop "
1111                             "unit.\n");
1112                         return;
1113                 }
1114
1115                 /*
1116                  * The stop_at_shutdown flag will be set if this device is
1117                  * a SATA direct-access end device.
1118                  */
1119                 if (target->stop_at_shutdown) {
1120                         if (xpt_create_path(&ccb->ccb_h.path,
1121                             xpt_periph, pathid, targetid,
1122                             CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1123                                 mps_dprint(sc, MPS_FAULT, "Unable to create "
1124                                     "LUN path to stop unit.\n");
1125                                 xpt_free_ccb(ccb);
1126                                 return;
1127                         }
1128                         xpt_path_string(ccb->ccb_h.path, path_str,
1129                             sizeof(path_str));
1130
1131                         mps_dprint(sc, MPS_INFO, "Sending StopUnit: path %s "
1132                             "handle %d\n", path_str, target->handle);
1133
1134                         /*
1135                          * Issue a START STOP UNIT command for the target.
1136                          * Increment the SSU counter to be used to count the
1137                          * number of required replies.
1138                          */
1139                         mps_dprint(sc, MPS_INFO, "Incrementing SSU count\n");
1140                         sc->SSU_refcount++;
1141                         ccb->ccb_h.target_id =
1142                             xpt_path_target_id(ccb->ccb_h.path);
1143                         ccb->ccb_h.ppriv_ptr1 = sassc;
1144                         scsi_start_stop(&ccb->csio,
1145                             /*retries*/0,
1146                             mpssas_stop_unit_done,
1147                             MSG_SIMPLE_Q_TAG,
1148                             /*start*/FALSE,
1149                             /*load/eject*/0,
1150                             /*immediate*/FALSE,
1151                             MPS_SENSE_LEN,
1152                             /*timeout*/10000);
1153                         xpt_action(ccb);
1154                 }
1155         }
1156
1157         /*
1158          * Timeout after 60 seconds by default or 10 seconds if howto has
1159          * RB_NOSYNC set which indicates we're likely handling a panic.
1160          */
1161         timeout = 600;
1162         if (howto & RB_NOSYNC)
1163                 timeout = 100;
1164
1165         /*
1166          * Wait until all of the SSU commands have completed or timeout has
1167          * expired.  Pause for 100ms each time through.  If any command
1168          * times out, the target will be reset in the SCSI command timeout
1169          * routine.
1170          */
1171         while (sc->SSU_refcount > 0) {
1172                 pause("mpswait", hz/10);
1173                 if (SCHEDULER_STOPPED())
1174                         xpt_sim_poll(sassc->sim);
1175
1176                 if (--timeout == 0) {
1177                         mps_dprint(sc, MPS_FAULT, "Time has expired waiting "
1178                             "for SSU commands to complete.\n");
1179                         break;
1180                 }
1181         }
1182 }
1183
1184 static void
1185 mpssas_stop_unit_done(struct cam_periph *periph, union ccb *done_ccb)
1186 {
1187         struct mpssas_softc *sassc;
1188         char path_str[64];
1189
1190         if (done_ccb == NULL)
1191                 return;
1192
1193         sassc = (struct mpssas_softc *)done_ccb->ccb_h.ppriv_ptr1;
1194
1195         xpt_path_string(done_ccb->ccb_h.path, path_str, sizeof(path_str));
1196         mps_dprint(sassc->sc, MPS_INFO, "Completing stop unit for %s\n",
1197             path_str);
1198
1199         /*
1200          * Nothing more to do except free the CCB and path.  If the command
1201          * timed out, an abort reset, then target reset will be issued during
1202          * the SCSI Command process.
1203          */
1204         xpt_free_path(done_ccb->ccb_h.path);
1205         xpt_free_ccb(done_ccb);
1206 }
1207
1208 /**
1209  * mpssas_ir_shutdown - IR shutdown notification
1210  * @sc: per adapter object
1211  * @howto: mast of RB_* bits for how we're rebooting
1212  *
1213  * Sending RAID Action to alert the Integrated RAID subsystem of the IOC that
1214  * the host system is shutting down.
1215  *
1216  * Return nothing.
1217  */
1218 void
1219 mpssas_ir_shutdown(struct mps_softc *sc, int howto)
1220 {
1221         u16 volume_mapping_flags;
1222         u16 ioc_pg8_flags = le16toh(sc->ioc_pg8.Flags);
1223         struct dev_mapping_table *mt_entry;
1224         u32 start_idx, end_idx;
1225         unsigned int id, found_volume = 0;
1226         struct mps_command *cm;
1227         Mpi2RaidActionRequest_t *action;
1228         target_id_t targetid;
1229         struct mpssas_target *target;
1230
1231         mps_dprint(sc, MPS_TRACE, "%s\n", __func__);
1232
1233         /* is IR firmware build loaded? */
1234         if (!sc->ir_firmware)
1235                 goto out;
1236
1237         /* are there any volumes?  Look at IR target IDs. */
1238         // TODO-later, this should be looked up in the RAID config structure
1239         // when it is implemented.
1240         volume_mapping_flags = le16toh(sc->ioc_pg8.IRVolumeMappingFlags) &
1241             MPI2_IOCPAGE8_IRFLAGS_MASK_VOLUME_MAPPING_MODE;
1242         if (volume_mapping_flags == MPI2_IOCPAGE8_IRFLAGS_LOW_VOLUME_MAPPING) {
1243                 start_idx = 0;
1244                 if (ioc_pg8_flags & MPI2_IOCPAGE8_FLAGS_RESERVED_TARGETID_0)
1245                         start_idx = 1;
1246         } else
1247                 start_idx = sc->max_devices - sc->max_volumes;
1248         end_idx = start_idx + sc->max_volumes - 1;
1249
1250         for (id = start_idx; id < end_idx; id++) {
1251                 mt_entry = &sc->mapping_table[id];
1252                 if ((mt_entry->physical_id != 0) &&
1253                     (mt_entry->missing_count == 0)) {
1254                         found_volume = 1;
1255                         break;
1256                 }
1257         }
1258
1259         if (!found_volume)
1260                 goto out;
1261
1262         if ((cm = mps_alloc_command(sc)) == NULL) {
1263                 printf("%s: command alloc failed\n", __func__);
1264                 goto out;
1265         }
1266
1267         action = (MPI2_RAID_ACTION_REQUEST *)cm->cm_req;
1268         action->Function = MPI2_FUNCTION_RAID_ACTION;
1269         action->Action = MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED;
1270         cm->cm_desc.Default.RequestFlags = MPI2_REQ_DESCRIPT_FLAGS_DEFAULT_TYPE;
1271         mps_lock(sc);
1272         mps_wait_command(sc, &cm, 5, CAN_SLEEP);
1273         mps_unlock(sc);
1274
1275         /*
1276          * Don't check for reply, just leave.
1277          */
1278         if (cm)
1279                 mps_free_command(sc, cm);
1280
1281 out:
1282         /*
1283          * All of the targets must have the correct value set for
1284          * 'stop_at_shutdown' for the current 'enable_ssu' sysctl variable.
1285          *
1286          * The possible values for the 'enable_ssu' variable are:
1287          * 0: disable to SSD and HDD
1288          * 1: disable only to HDD (default)
1289          * 2: disable only to SSD
1290          * 3: enable to SSD and HDD
1291          * anything else will default to 1.
1292          */
1293         for (targetid = 0; targetid < sc->max_devices; targetid++) {
1294                 target = &sc->sassc->targets[targetid];
1295                 if (target->handle == 0x0) {
1296                         continue;
1297                 }
1298
1299                 if (target->supports_SSU) {
1300                         switch (sc->enable_ssu) {
1301                         case MPS_SSU_DISABLE_SSD_DISABLE_HDD:
1302                                 target->stop_at_shutdown = FALSE;
1303                                 break;
1304                         case MPS_SSU_DISABLE_SSD_ENABLE_HDD:
1305                                 target->stop_at_shutdown = TRUE;
1306                                 if (target->flags & MPS_TARGET_IS_SATA_SSD) {
1307                                         target->stop_at_shutdown = FALSE;
1308                                 }
1309                                 break;
1310                         case MPS_SSU_ENABLE_SSD_ENABLE_HDD:
1311                                 target->stop_at_shutdown = TRUE;
1312                                 break;
1313                         case MPS_SSU_ENABLE_SSD_DISABLE_HDD:
1314                         default:
1315                                 target->stop_at_shutdown = TRUE;
1316                                 if ((target->flags &
1317                                     MPS_TARGET_IS_SATA_SSD) == 0) {
1318                                         target->stop_at_shutdown = FALSE;
1319                                 }
1320                                 break;
1321                         }
1322                 }
1323         }
1324         mpssas_SSU_to_SATA_devices(sc, howto);
1325 }