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