sys/dev/raid/aac/aac_cam.c

   1 /*-
   2  * Copyright (c) 2002 Adaptec, Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  * $FreeBSD: src/sys/dev/aac/aac_cam.c,v 1.40 2010/12/06 17:06:21 jhb Exp $
  27  */
  28
  29 /*
  30  * CAM front-end for communicating with non-DASD devices
  31  */
  32
  33 #include "opt_aac.h"
  34
  35 #include <sys/param.h>
  36 #include <sys/systm.h>
  37 #include <sys/kernel.h>
  38 #include <sys/sysctl.h>
  39 #include <sys/lock.h>
  40 #include <sys/malloc.h>
  41 #include <sys/module.h>
  42
  43 #include <bus/cam/cam.h>
  44 #include <bus/cam/cam_ccb.h>
  45 #include <bus/cam/cam_debug.h>
  46 #include <bus/cam/cam_periph.h>
  47 #include <bus/cam/cam_sim.h>
  48 #include <bus/cam/cam_xpt_periph.h>
  49 #include <bus/cam/cam_xpt_sim.h>
  50 #include <bus/cam/scsi/scsi_all.h>
  51 #include <bus/cam/scsi/scsi_message.h>
  52
  53 #include <sys/bus.h>
  54 #include <sys/conf.h>
  55 #include <sys/disk.h>
  56
  57 #include <machine/md_var.h>
  58 #include <sys/rman.h>
  59
  60 #include <vm/vm.h>
  61 #include <vm/pmap.h>
  62
  63 #include <dev/raid/aac/aacreg.h>
  64 #include <dev/raid/aac/aac_ioctl.h>
  65 #include <dev/raid/aac/aacvar.h>
  66
  67 struct aac_cam {
  68         device_t                dev;
  69         struct aac_sim          *inf;
  70         struct cam_sim          *sim;
  71         struct cam_path         *path;
  72 };
  73
  74 static int aac_cam_probe(device_t dev);
  75 static int aac_cam_attach(device_t dev);
  76 static int aac_cam_detach(device_t dev);
  77 static void aac_cam_action(struct cam_sim *, union ccb *);
  78 static void aac_cam_poll(struct cam_sim *);
  79 static void aac_cam_complete(struct aac_command *);
  80 static void aac_cam_rescan(struct aac_softc *sc, uint32_t channel,
  81     uint32_t target_id);
  82 static void aac_bus_scan_cb(struct cam_periph *periph, union ccb *ccb);
  83
  84 static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
  85 static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
  86 static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
  87
  88 static devclass_t       aac_pass_devclass;
  89
  90 static device_method_t  aac_pass_methods[] = {
  91         DEVMETHOD(device_probe,         aac_cam_probe),
  92         DEVMETHOD(device_attach,        aac_cam_attach),
  93         DEVMETHOD(device_detach,        aac_cam_detach),
  94         { 0, 0 }
  95 };
  96
  97 static driver_t aac_pass_driver = {
  98         "aacp",
  99         aac_pass_methods,
 100         sizeof(struct aac_cam)
 101 };
 102
 103 DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, NULL, NULL);
 104 MODULE_DEPEND(aacp, cam, 1, 1, 1);
 105
 106 MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
 107
 108 static void
 109 aac_cam_rescan(struct aac_softc *sc, uint32_t channel, uint32_t target_id)
 110 {
 111         union ccb *ccb;
 112         struct aac_sim *sim;
 113         struct aac_cam *camsc;
 114
 115         if (target_id == AAC_CAM_TARGET_WILDCARD)
 116                 target_id = CAM_TARGET_WILDCARD;
 117
 118         TAILQ_FOREACH(sim, &sc->aac_sim_tqh, sim_link) {
 119                 camsc = sim->aac_cam;
 120                 if (camsc == NULL || camsc->inf == NULL ||
 121                     camsc->inf->BusNumber != channel)
 122                         continue;
 123
 124                 ccb = xpt_alloc_ccb();
 125                 if (ccb == NULL) {
 126                         device_printf(sc->aac_dev,
 127                             "Cannot allocate ccb for bus rescan.\n");
 128                         return;
 129                 }
 130
 131                 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph,
 132                     cam_sim_path(camsc->sim),
 133                     target_id, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 134                         xpt_free_ccb(ccb);
 135                         device_printf(sc->aac_dev,
 136                             "Cannot create path for bus rescan.\n");
 137                         return;
 138                 }
 139                 xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
 140                 ccb->ccb_h.func_code = XPT_SCAN_BUS;
 141                 ccb->ccb_h.cbfcnp = aac_bus_scan_cb;
 142                 ccb->crcn.flags = CAM_FLAG_NONE;
 143                 xpt_action(ccb);
 144                 break;
 145         }
 146 }
 147
 148 static void
 149 aac_bus_scan_cb(struct cam_periph *periph, union ccb *ccb)
 150 {
 151         if (ccb->ccb_h.status != CAM_REQ_CMP)
 152                 kprintf("cam_scan_callback: failure status = %x\n",
 153                         ccb->ccb_h.status);
 154
 155         xpt_free_path(ccb->ccb_h.path);
 156         kfree(ccb, M_TEMP);
 157 }
 158
 159 static void
 160 aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
 161 {
 162         union ccb *ccb;
 163         struct aac_cam *camsc;
 164
 165         switch (event->ev_type) {
 166         case AAC_EVENT_CMFREE:
 167                 ccb = arg;
 168                 camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
 169                 kfree(event, M_AACCAM);
 170                 xpt_release_simq(camsc->sim, 1);
 171                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
 172                 xpt_done(ccb);
 173                 break;
 174         default:
 175                 device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
 176                     event->ev_type);
 177                 break;
 178         }
 179
 180         return;
 181 }
 182
 183 static int
 184 aac_cam_probe(device_t dev)
 185 {
 186         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 187
 188         return (0);
 189 }
 190
 191 static int
 192 aac_cam_detach(device_t dev)
 193 {
 194         struct aac_softc *sc;
 195         struct aac_cam *camsc;
 196         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 197
 198         camsc = (struct aac_cam *)device_get_softc(dev);
 199         sc = camsc->inf->aac_sc;
 200         camsc->inf->aac_cam = NULL;
 201
 202         lockmgr(&sc->aac_io_lock, LK_EXCLUSIVE);
 203
 204         xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
 205         xpt_free_path(camsc->path);
 206         xpt_bus_deregister(cam_sim_path(camsc->sim));
 207         cam_sim_free(camsc->sim);
 208
 209         sc->cam_rescan_cb = NULL;
 210
 211         lockmgr(&sc->aac_io_lock, LK_RELEASE);
 212
 213         return (0);
 214 }
 215
 216 /*
 217  * Register the driver as a CAM SIM
 218  */
 219 static int
 220 aac_cam_attach(device_t dev)
 221 {
 222         struct cam_devq *devq;
 223         struct cam_sim *sim;
 224         struct cam_path *path;
 225         struct aac_cam *camsc;
 226         struct aac_sim *inf;
 227
 228         fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 229
 230         camsc = (struct aac_cam *)device_get_softc(dev);
 231         inf = (struct aac_sim *)device_get_ivars(dev);
 232         camsc->inf = inf;
 233         camsc->inf->aac_cam = camsc;
 234
 235         devq = cam_simq_alloc(inf->TargetsPerBus);
 236         if (devq == NULL)
 237                 return (EIO);
 238
 239         sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
 240             device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
 241         cam_simq_release(devq);
 242         if (sim == NULL)
 243                 return (EIO);
 244
 245         /* Since every bus has it's own sim, every bus 'appears' as bus 0 */
 246         lockmgr(&inf->aac_sc->aac_io_lock, LK_EXCLUSIVE);
 247         if (xpt_bus_register(sim, 0) != CAM_SUCCESS) {
 248                 cam_sim_free(sim);
 249                 lockmgr(&inf->aac_sc->aac_io_lock, LK_RELEASE);
 250                 return (EIO);
 251         }
 252
 253         if (xpt_create_path(&path, NULL, cam_sim_path(sim),
 254             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 255                 xpt_bus_deregister(cam_sim_path(sim));
 256                 cam_sim_free(sim);
 257                 lockmgr(&inf->aac_sc->aac_io_lock, LK_RELEASE);
 258                 return (EIO);
 259         }
 260         inf->aac_sc->cam_rescan_cb = aac_cam_rescan;
 261         lockmgr(&inf->aac_sc->aac_io_lock, LK_RELEASE);
 262
 263         camsc->sim = sim;
 264         camsc->path = path;
 265
 266         return (0);
 267 }
 268
 269 static void
 270 aac_cam_action(struct cam_sim *sim, union ccb *ccb)
 271 {
 272         struct  aac_cam *camsc;
 273         struct  aac_softc *sc;
 274         struct  aac_srb *srb;
 275         struct  aac_fib *fib;
 276         struct  aac_command *cm;
 277
 278         camsc = (struct aac_cam *)cam_sim_softc(sim);
 279         sc = camsc->inf->aac_sc;
 280         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 281
 282         /* Synchronous ops, and ops that don't require communication with the
 283          * controller */
 284         switch(ccb->ccb_h.func_code) {
 285         case XPT_SCSI_IO:
 286         case XPT_RESET_DEV:
 287                 /* These are handled down below */
 288                 break;
 289         case XPT_CALC_GEOMETRY:
 290         {
 291                 struct ccb_calc_geometry *ccg;
 292                 u_int32_t size_mb;
 293                 u_int32_t secs_per_cylinder;
 294
 295                 ccg = &ccb->ccg;
 296                 size_mb = ccg->volume_size /
 297                     ((1024L * 1024L) / ccg->block_size);
 298                 if (size_mb >= (2 * 1024)) {            /* 2GB */
 299                         ccg->heads = 255;
 300                         ccg->secs_per_track = 63;
 301                 } else if (size_mb >= (1 * 1024)) {     /* 1GB */
 302                         ccg->heads = 128;
 303                         ccg->secs_per_track = 32;
 304                 } else {
 305                         ccg->heads = 64;
 306                         ccg->secs_per_track = 32;
 307                 }
 308                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
 309                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
 310
 311                 ccb->ccb_h.status = CAM_REQ_CMP;
 312                 xpt_done(ccb);
 313                 return;
 314         }
 315         case XPT_PATH_INQ:
 316         {
 317                 struct ccb_pathinq *cpi = &ccb->cpi;
 318
 319                 cpi->version_num = 1;
 320                 cpi->hba_inquiry = PI_WIDE_16;
 321                 cpi->target_sprt = 0;
 322
 323                 /*
 324                  * Resetting via the passthrough or parallel bus scan
 325                  * causes problems.
 326                  */
 327                 cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN;
 328                 cpi->hba_eng_cnt = 0;
 329                 cpi->max_target = camsc->inf->TargetsPerBus;
 330                 cpi->max_lun = 8;       /* Per the controller spec */
 331                 cpi->initiator_id = camsc->inf->InitiatorBusId;
 332                 cpi->bus_id = camsc->inf->BusNumber;
 333                 cpi->base_transfer_speed = 3300;
 334                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 335                 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
 336                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 337                 cpi->unit_number = cam_sim_unit(sim);
 338                 cpi->transport = XPORT_SPI;
 339                 cpi->transport_version = 2;
 340                 cpi->protocol = PROTO_SCSI;
 341                 cpi->protocol_version = SCSI_REV_2;
 342                 ccb->ccb_h.status = CAM_REQ_CMP;
 343                 xpt_done(ccb);
 344                 return;
 345         }
 346         case XPT_GET_TRAN_SETTINGS:
 347         {
 348                 struct ccb_trans_settings_scsi *scsi =
 349                         &ccb->cts.proto_specific.scsi;
 350                 struct ccb_trans_settings_spi *spi =
 351                         &ccb->cts.xport_specific.spi;
 352                 ccb->cts.protocol = PROTO_SCSI;
 353                 ccb->cts.protocol_version = SCSI_REV_2;
 354                 ccb->cts.transport = XPORT_SPI;
 355                 ccb->cts.transport_version = 2;
 356                 if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) {
 357                         scsi->valid = CTS_SCSI_VALID_TQ;
 358                         spi->valid |= CTS_SPI_VALID_DISC;
 359                 } else {
 360                         scsi->valid = 0;
 361                 }
 362                 ccb->ccb_h.status = CAM_REQ_CMP;
 363                 xpt_done(ccb);
 364                 return;
 365         }
 366         case XPT_SET_TRAN_SETTINGS:
 367                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 368                 xpt_done(ccb);
 369                 return;
 370         case XPT_RESET_BUS:
 371                 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
 372                         ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
 373                 } else {
 374                         ccb->ccb_h.status = CAM_REQ_CMP;
 375                 }
 376                 xpt_done(ccb);
 377                 return;
 378         case XPT_ABORT:
 379                 ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
 380                 xpt_done(ccb);
 381                 return;
 382         case XPT_TERM_IO:
 383                 ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
 384                 xpt_done(ccb);
 385                 return;
 386         default:
 387                 device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
 388                     ccb->ccb_h.func_code);
 389                 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
 390                 xpt_done(ccb);
 391                 return;
 392         }
 393
 394         /* Async ops that require communcation with the controller */
 395
 396         if (aac_alloc_command(sc, &cm)) {
 397                 struct aac_event *event;
 398
 399                 xpt_freeze_simq(sim, 1);
 400                 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
 401                 ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
 402                 event = kmalloc(sizeof(struct aac_event), M_AACCAM,
 403                                 M_INTWAIT | M_ZERO);
 404                 event->ev_callback = aac_cam_event;
 405                 event->ev_arg = ccb;
 406                 event->ev_type = AAC_EVENT_CMFREE;
 407                 aac_add_event(sc, event);
 408                 return;
 409         }
 410
 411         fib = cm->cm_fib;
 412         srb = (struct aac_srb *)&fib->data[0];
 413         cm->cm_datalen = 0;
 414
 415         switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
 416         case CAM_DIR_IN:
 417                 srb->flags = AAC_SRB_FLAGS_DATA_IN;
 418                 cm->cm_flags |= AAC_CMD_DATAIN;
 419                 break;
 420         case CAM_DIR_OUT:
 421                 srb->flags = AAC_SRB_FLAGS_DATA_OUT;
 422                 cm->cm_flags |= AAC_CMD_DATAOUT;
 423                 break;
 424         case CAM_DIR_NONE:
 425                 srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
 426                 break;
 427         default:
 428                 srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
 429                 cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
 430                 break;
 431         }
 432
 433         switch(ccb->ccb_h.func_code) {
 434         case XPT_SCSI_IO:
 435         {
 436                 struct ccb_scsiio *csio = &ccb->csio;
 437
 438                 srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
 439
 440                 /*
 441                  * Copy the CDB into the SRB.  It's only 6-16 bytes,
 442                  * so a copy is not too expensive.
 443                  */
 444                 srb->cdb_len = csio->cdb_len;
 445                 if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 446                         bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
 447                             srb->cdb_len);
 448                 else
 449                         bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
 450                             srb->cdb_len);
 451
 452                 /* Set command */
 453                 fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
 454                         ScsiPortCommandU64 : ScsiPortCommand;
 455
 456                 /* Map the s/g list. XXX 32bit addresses only! */
 457                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 458                         if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
 459                                 srb->data_len = csio->dxfer_len;
 460                                 if (ccb->ccb_h.flags & CAM_DATA_PHYS) {
 461                                         /* Send a 32bit command */
 462                                         fib->Header.Command = ScsiPortCommand;
 463                                         srb->sg_map.SgCount = 1;
 464                                         srb->sg_map.SgEntry[0].SgAddress =
 465                                             (uint32_t)(uintptr_t)csio->data_ptr;
 466                                         srb->sg_map.SgEntry[0].SgByteCount =
 467                                             csio->dxfer_len;
 468                                 } else {
 469                                         /*
 470                                          * Arrange things so that the S/G
 471                                          * map will get set up automagically
 472                                          */
 473                                         cm->cm_data = (void *)csio->data_ptr;
 474                                         cm->cm_datalen = csio->dxfer_len;
 475                                         cm->cm_sgtable = &srb->sg_map;
 476                                 }
 477                         } else {
 478                                 /* XXX Need to handle multiple s/g elements */
 479                                 panic("aac_cam: multiple s/g elements");
 480                         }
 481                 } else {
 482                         srb->sg_map.SgCount = 0;
 483                         srb->sg_map.SgEntry[0].SgByteCount = 0;
 484                         srb->data_len = 0;
 485                 }
 486
 487                 break;
 488         }
 489         case XPT_RESET_DEV:
 490                 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
 491                         srb->function = AAC_SRB_FUNC_RESET_DEVICE;
 492                         break;
 493                 } else {
 494                         ccb->ccb_h.status = CAM_REQ_CMP;
 495                         xpt_done(ccb);
 496                         return;
 497                 }
 498         default:
 499                 break;
 500         }
 501
 502         srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
 503         srb->target = ccb->ccb_h.target_id;
 504         srb->lun = ccb->ccb_h.target_lun;
 505         srb->timeout = ccb->ccb_h.timeout;      /* XXX */
 506         srb->retry_limit = 0;
 507
 508         cm->cm_complete = aac_cam_complete;
 509         cm->cm_private = ccb;
 510         cm->cm_timestamp = time_second;
 511
 512         fib->Header.XferState =
 513             AAC_FIBSTATE_HOSTOWNED      |
 514             AAC_FIBSTATE_INITIALISED    |
 515             AAC_FIBSTATE_FROMHOST       |
 516             AAC_FIBSTATE_REXPECTED      |
 517             AAC_FIBSTATE_NORM;
 518         fib->Header.Size = sizeof(struct aac_fib_header) +
 519             sizeof(struct aac_srb);
 520
 521         aac_enqueue_ready(cm);
 522         aac_startio(cm->cm_sc);
 523
 524         return;
 525 }
 526
 527 static void
 528 aac_cam_poll(struct cam_sim *sim)
 529 {
 530         /*
 531          * Pinging the interrupt routine isn't very safe, nor is it
 532          * really necessary.  Do nothing.
 533          */
 534 }
 535
 536 static void
 537 aac_cam_complete(struct aac_command *cm)
 538 {
 539         union   ccb *ccb;
 540         struct  aac_srb_response *srbr;
 541         struct  aac_softc *sc;
 542
 543         sc = cm->cm_sc;
 544         fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "");
 545         ccb = cm->cm_private;
 546         srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
 547
 548         if (srbr->fib_status != 0) {
 549                 device_printf(sc->aac_dev, "Passthru FIB failed!\n");
 550                 ccb->ccb_h.status = CAM_REQ_ABORTED;
 551         } else {
 552                 /*
 553                  * The SRB error codes just happen to match the CAM error
 554                  * codes.  How convienient!
 555                  */
 556                 ccb->ccb_h.status = srbr->srb_status;
 557
 558                 /* Take care of SCSI_IO ops. */
 559                 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
 560                         u_int8_t command, device;
 561
 562                         ccb->csio.scsi_status = srbr->scsi_status;
 563
 564                         /* Take care of autosense */
 565                         if (srbr->sense_len) {
 566                                 int sense_len, scsi_sense_len;
 567
 568                                 scsi_sense_len = sizeof(struct scsi_sense_data);
 569                                 bzero(&ccb->csio.sense_data, scsi_sense_len);
 570                                 sense_len = (srbr->sense_len >
 571                                     scsi_sense_len) ? scsi_sense_len :
 572                                     srbr->sense_len;
 573                                 bcopy(&srbr->sense[0], &ccb->csio.sense_data,
 574                                     srbr->sense_len);
 575                                 ccb->csio.sense_len = sense_len;
 576                                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
 577                                 // scsi_sense_print(&ccb->csio);
 578                         }
 579
 580                         /* If this is an inquiry command, fake things out */
 581                         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 582                                 command = ccb->csio.cdb_io.cdb_ptr[0];
 583                         else
 584                                 command = ccb->csio.cdb_io.cdb_bytes[0];
 585
 586                         if (command == INQUIRY) {
 587                                 if (ccb->ccb_h.status == CAM_REQ_CMP) {
 588                                 device = ccb->csio.data_ptr[0] & 0x1f;
 589                                 /*
 590                                  * We want DASD and PROC devices to only be
 591                                  * visible through the pass device.
 592                                  */
 593                                 if ((device == T_DIRECT) ||
 594                                     (device == T_PROCESSOR) ||
 595                                     (sc->flags & AAC_FLAGS_CAM_PASSONLY))
 596                                         ccb->csio.data_ptr[0] =
 597                                             ((ccb->csio.data_ptr[0] & 0xe0) |
 598                                             T_NODEVICE);
 599                                 } else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
 600                                         ccb->ccb_h.target_lun != 0) {
 601                                         /* fix for INQUIRYs on Lun>0 */
 602                                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 603                                 }
 604                         }
 605                 }
 606         }
 607
 608         aac_release_command(cm);
 609         xpt_done(ccb);
 610
 611         return;
 612 }
 613
 614 static u_int32_t
 615 aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
 616 {
 617         struct aac_fib *fib;
 618         struct aac_softc *sc;
 619         struct aac_cam *camsc;
 620         struct aac_vmioctl *vmi;
 621         struct aac_resetbus *rbc;
 622         int e;
 623
 624         camsc = (struct aac_cam *)cam_sim_softc(sim);
 625         sc = camsc->inf->aac_sc;
 626
 627         if (sc == NULL) {
 628                 kprintf("aac: Null sc?\n");
 629                 return (CAM_REQ_ABORTED);
 630         }
 631
 632         aac_alloc_sync_fib(sc, &fib);
 633
 634         vmi = (struct aac_vmioctl *)&fib->data[0];
 635         bzero(vmi, sizeof(struct aac_vmioctl));
 636
 637         vmi->Command = VM_Ioctl;
 638         vmi->ObjType = FT_DRIVE;
 639         vmi->MethId = sc->scsi_method_id;
 640         vmi->ObjId = 0;
 641         vmi->IoctlCmd = ResetBus;
 642
 643         rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
 644         rbc->BusNumber = camsc->inf->BusNumber;
 645
 646         e = aac_sync_fib(sc, ContainerCommand, 0, fib,
 647             sizeof(struct aac_vmioctl));
 648         if (e) {
 649                 device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
 650                     e);
 651                 aac_release_sync_fib(sc);
 652                 return (CAM_REQ_ABORTED);
 653         }
 654
 655         aac_release_sync_fib(sc);
 656         return (CAM_REQ_CMP);
 657 }
 658
 659 static u_int32_t
 660 aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
 661 {
 662         return (CAM_UA_ABORT);
 663 }
 664
 665 static u_int32_t
 666 aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
 667 {
 668         return (CAM_UA_TERMIO);
 669 }