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/malloc.h>
  41 #include <sys/module.h>
  42
  43 #include <cam/cam.h>
  44 #include <cam/cam_ccb.h>
  45 #include <cam/cam_debug.h>
  46 #include <cam/cam_sim.h>
  47 #include <cam/cam_xpt_sim.h>
  48 #include <cam/scsi/scsi_all.h>
  49 #include <cam/scsi/scsi_message.h>
  50
  51 #include <sys/bus.h>
  52 #include <sys/conf.h>
  53 #include <sys/disk.h>
  54
  55 #include <machine/md_var.h>
  56 #include <machine/bus.h>
  57 #include <sys/rman.h>
  58
  59 #include <vm/vm.h>
  60 #include <vm/pmap.h>
  61
  62 #include <dev/aac/aacreg.h>
  63 #include <sys/aac_ioctl.h>
  64 #include <dev/aac/aacvar.h>
  65
  66 struct aac_cam {
  67         device_t                dev;
  68         struct aac_sim          *inf;
  69         struct cam_sim          *sim;
  70         struct cam_path         *path;
  71 };
  72
  73 static int aac_cam_probe(device_t dev);
  74 static int aac_cam_attach(device_t dev);
  75 static int aac_cam_detach(device_t dev);
  76 static void aac_cam_action(struct cam_sim *, union ccb *);
  77 static void aac_cam_poll(struct cam_sim *);
  78 static void aac_cam_complete(struct aac_command *);
  79 static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *);
  80 static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *);
  81 static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *);
  82
  83 static devclass_t       aac_pass_devclass;
  84
  85 static device_method_t  aac_pass_methods[] = {
  86         DEVMETHOD(device_probe,         aac_cam_probe),
  87         DEVMETHOD(device_attach,        aac_cam_attach),
  88         DEVMETHOD(device_detach,        aac_cam_detach),
  89         { 0, 0 }
  90 };
  91
  92 static driver_t aac_pass_driver = {
  93         "aacp",
  94         aac_pass_methods,
  95         sizeof(struct aac_cam)
  96 };
  97
  98 DRIVER_MODULE(aacp, aac, aac_pass_driver, aac_pass_devclass, 0, 0);
  99 MODULE_DEPEND(aacp, cam, 1, 1, 1);
 100
 101 MALLOC_DEFINE(M_AACCAM, "aaccam", "AAC CAM info");
 102
 103 static void
 104 aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg)
 105 {
 106         union ccb *ccb;
 107         struct aac_cam *camsc;
 108
 109         switch (event->ev_type) {
 110         case AAC_EVENT_CMFREE:
 111                 ccb = arg;
 112                 camsc = ccb->ccb_h.sim_priv.entries[0].ptr;
 113                 free(event, M_AACCAM);
 114                 xpt_release_simq(camsc->sim, 1);
 115                 ccb->ccb_h.status = CAM_REQUEUE_REQ;
 116                 xpt_done(ccb);
 117                 break;
 118         default:
 119                 device_printf(sc->aac_dev, "unknown event %d in aac_cam\n",
 120                     event->ev_type);
 121                 break;
 122         }
 123
 124         return;
 125 }
 126
 127 static int
 128 aac_cam_probe(device_t dev)
 129 {
 130         debug_called(2);
 131
 132         return (0);
 133 }
 134
 135 static int
 136 aac_cam_detach(device_t dev)
 137 {
 138         struct aac_softc *sc;
 139         struct aac_cam *camsc;
 140         debug_called(2);
 141
 142         camsc = (struct aac_cam *)device_get_softc(dev);
 143         sc = camsc->inf->aac_sc;
 144
 145         mtx_lock(&sc->aac_io_lock);
 146
 147         xpt_async(AC_LOST_DEVICE, camsc->path, NULL);
 148         xpt_free_path(camsc->path);
 149         xpt_bus_deregister(cam_sim_path(camsc->sim));
 150         cam_sim_free(camsc->sim, /*free_devq*/TRUE);
 151
 152         mtx_unlock(&sc->aac_io_lock);
 153
 154         return (0);
 155 }
 156
 157 /*
 158  * Register the driver as a CAM SIM
 159  */
 160 static int
 161 aac_cam_attach(device_t dev)
 162 {
 163         struct cam_devq *devq;
 164         struct cam_sim *sim;
 165         struct cam_path *path;
 166         struct aac_cam *camsc;
 167         struct aac_sim *inf;
 168
 169         debug_called(1);
 170
 171         camsc = (struct aac_cam *)device_get_softc(dev);
 172         inf = (struct aac_sim *)device_get_ivars(dev);
 173         camsc->inf = inf;
 174
 175         devq = cam_simq_alloc(inf->TargetsPerBus);
 176         if (devq == NULL)
 177                 return (EIO);
 178
 179         sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc,
 180             device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq);
 181         if (sim == NULL) {
 182                 cam_simq_free(devq);
 183                 return (EIO);
 184         }
 185
 186         /* Since every bus has it's own sim, every bus 'appears' as bus 0 */
 187         mtx_lock(&inf->aac_sc->aac_io_lock);
 188         if (xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) {
 189                 cam_sim_free(sim, TRUE);
 190                 mtx_unlock(&inf->aac_sc->aac_io_lock);
 191                 return (EIO);
 192         }
 193
 194         if (xpt_create_path(&path, NULL, cam_sim_path(sim),
 195             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 196                 xpt_bus_deregister(cam_sim_path(sim));
 197                 cam_sim_free(sim, TRUE);
 198                 mtx_unlock(&inf->aac_sc->aac_io_lock);
 199                 return (EIO);
 200         }
 201         mtx_unlock(&inf->aac_sc->aac_io_lock);
 202
 203         camsc->sim = sim;
 204         camsc->path = path;
 205
 206         return (0);
 207 }
 208
 209 static void
 210 aac_cam_action(struct cam_sim *sim, union ccb *ccb)
 211 {
 212         struct  aac_cam *camsc;
 213         struct  aac_softc *sc;
 214         struct  aac_srb32 *srb;
 215         struct  aac_fib *fib;
 216         struct  aac_command *cm;
 217
 218         debug_called(2);
 219
 220         camsc = (struct aac_cam *)cam_sim_softc(sim);
 221         sc = camsc->inf->aac_sc;
 222
 223         /* Synchronous ops, and ops that don't require communication with the
 224          * controller */
 225         switch(ccb->ccb_h.func_code) {
 226         case XPT_SCSI_IO:
 227         case XPT_RESET_DEV:
 228                 /* These are handled down below */
 229                 break;
 230         case XPT_CALC_GEOMETRY:
 231         {
 232                 struct ccb_calc_geometry *ccg;
 233                 u_int32_t size_mb;
 234                 u_int32_t secs_per_cylinder;
 235
 236                 ccg = &ccb->ccg;
 237                 size_mb = ccg->volume_size /
 238                     ((1024L * 1024L) / ccg->block_size);
 239                 if (size_mb >= (2 * 1024)) {            /* 2GB */
 240                         ccg->heads = 255;
 241                         ccg->secs_per_track = 63;
 242                 } else if (size_mb >= (1 * 1024)) {     /* 1GB */
 243                         ccg->heads = 128;
 244                         ccg->secs_per_track = 32;
 245                 } else {
 246                         ccg->heads = 64;
 247                         ccg->secs_per_track = 32;
 248                 }
 249                 secs_per_cylinder = ccg->heads * ccg->secs_per_track;
 250                 ccg->cylinders = ccg->volume_size / secs_per_cylinder;
 251
 252                 ccb->ccb_h.status = CAM_REQ_CMP;
 253                 xpt_done(ccb);
 254                 return;
 255         }
 256         case XPT_PATH_INQ:
 257         {
 258                 struct ccb_pathinq *cpi = &ccb->cpi;
 259
 260                 cpi->version_num = 1;
 261                 cpi->hba_inquiry = PI_WIDE_16;
 262                 cpi->target_sprt = 0;
 263
 264                 /* Resetting via the passthrough causes problems. */
 265                 cpi->hba_misc = PIM_NOBUSRESET;
 266                 cpi->hba_eng_cnt = 0;
 267                 cpi->max_target = camsc->inf->TargetsPerBus;
 268                 cpi->max_lun = 8;       /* Per the controller spec */
 269                 cpi->initiator_id = camsc->inf->InitiatorBusId;
 270                 cpi->bus_id = camsc->inf->BusNumber;
 271                 cpi->base_transfer_speed = 3300;
 272                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
 273                 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN);
 274                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
 275                 cpi->unit_number = cam_sim_unit(sim);
 276                 cpi->transport = XPORT_SPI;
 277                 cpi->transport_version = 2;
 278                 cpi->protocol = PROTO_SCSI;
 279                 cpi->protocol_version = SCSI_REV_2;
 280                 ccb->ccb_h.status = CAM_REQ_CMP;
 281                 xpt_done(ccb);
 282                 return;
 283         }
 284         case XPT_GET_TRAN_SETTINGS:
 285         {
 286                 struct ccb_trans_settings_scsi *scsi =
 287                         &ccb->cts.proto_specific.scsi;
 288                 struct ccb_trans_settings_spi *spi =
 289                         &ccb->cts.xport_specific.spi;
 290                 ccb->cts.protocol = PROTO_SCSI;
 291                 ccb->cts.protocol_version = SCSI_REV_2;
 292                 ccb->cts.transport = XPORT_SPI;
 293                 ccb->cts.transport_version = 2;
 294                 if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) {
 295                         scsi->valid = CTS_SCSI_VALID_TQ;
 296                         spi->valid |= CTS_SPI_VALID_DISC;
 297                 } else {
 298                         scsi->valid = 0;
 299                 }
 300                 ccb->ccb_h.status = CAM_REQ_CMP;
 301                 xpt_done(ccb);
 302                 return;
 303         }
 304         case XPT_SET_TRAN_SETTINGS:
 305                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
 306                 xpt_done(ccb);
 307                 return;
 308         case XPT_RESET_BUS:
 309                 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
 310                         ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb);
 311                 } else {
 312                         ccb->ccb_h.status = CAM_REQ_CMP;
 313                 }
 314                 xpt_done(ccb);
 315                 return;
 316         case XPT_ABORT:
 317                 ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb);
 318                 xpt_done(ccb);
 319                 return;
 320         case XPT_TERM_IO:
 321                 ccb->ccb_h.status = aac_cam_term_io(sim, ccb);
 322                 xpt_done(ccb);
 323                 return;
 324         default:
 325                 device_printf(sc->aac_dev, "Unsupported command 0x%x\n",
 326                     ccb->ccb_h.func_code);
 327                 ccb->ccb_h.status = CAM_PROVIDE_FAIL;
 328                 xpt_done(ccb);
 329                 return;
 330         }
 331
 332         /* Async ops that require communcation with the controller */
 333
 334         if (aac_alloc_command(sc, &cm)) {
 335                 struct aac_event *event;
 336
 337                 xpt_freeze_simq(sim, 1);
 338                 ccb->ccb_h.status = CAM_RESRC_UNAVAIL;
 339                 ccb->ccb_h.sim_priv.entries[0].ptr = camsc;
 340                 event = malloc(sizeof(struct aac_event), M_AACCAM,
 341                     M_NOWAIT | M_ZERO);
 342                 if (event == NULL) {
 343                         device_printf(sc->aac_dev,
 344                             "Warning, out of memory for event\n");
 345                         return;
 346                 }
 347                 event->ev_callback = aac_cam_event;
 348                 event->ev_arg = ccb;
 349                 event->ev_type = AAC_EVENT_CMFREE;
 350                 aac_add_event(sc, event);
 351                 return;
 352         }
 353
 354         fib = cm->cm_fib;
 355         srb = (struct aac_srb32 *)&fib->data[0];
 356         cm->cm_datalen = 0;
 357
 358         switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
 359         case CAM_DIR_IN:
 360                 srb->flags = AAC_SRB_FLAGS_DATA_IN;
 361                 cm->cm_flags |= AAC_CMD_DATAIN;
 362                 break;
 363         case CAM_DIR_OUT:
 364                 srb->flags = AAC_SRB_FLAGS_DATA_OUT;
 365                 cm->cm_flags |= AAC_CMD_DATAOUT;
 366                 break;
 367         case CAM_DIR_NONE:
 368                 srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER;
 369                 break;
 370         default:
 371                 srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION;
 372                 cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT;
 373                 break;
 374         }
 375
 376         switch(ccb->ccb_h.func_code) {
 377         case XPT_SCSI_IO:
 378         {
 379                 struct ccb_scsiio *csio = &ccb->csio;
 380
 381                 srb->function = AAC_SRB_FUNC_EXECUTE_SCSI;
 382
 383                 /*
 384                  * Copy the CDB into the SRB.  It's only 6-16 bytes,
 385                  * so a copy is not too expensive.
 386                  */
 387                 srb->cdb_len = csio->cdb_len;
 388                 if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 389                         bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0],
 390                             srb->cdb_len);
 391                 else
 392                         bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0],
 393                             srb->cdb_len);
 394
 395                 /* Set command */
 396                 fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ?
 397                         ScsiPortCommandU64 : ScsiPortCommand;
 398
 399                 /* Map the s/g list. XXX 32bit addresses only! */
 400                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 401                         if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
 402                                 srb->data_len = csio->dxfer_len;
 403                                 if (ccb->ccb_h.flags & CAM_DATA_PHYS) {
 404                                         /* Send a 32bit command */
 405                                         fib->Header.Command = ScsiPortCommand;
 406                                         srb->sg_map32.SgCount = 1;
 407                                         srb->sg_map32.SgEntry[0].SgAddress =
 408                                             (uint32_t)(uintptr_t)csio->data_ptr;
 409                                         srb->sg_map32.SgEntry[0].SgByteCount =
 410                                             csio->dxfer_len;
 411                                 } else {
 412                                         /*
 413                                          * Arrange things so that the S/G
 414                                          * map will get set up automagically
 415                                          */
 416                                         cm->cm_data = (void *)csio->data_ptr;
 417                                         cm->cm_datalen = csio->dxfer_len;
 418                                         cm->cm_sgtable = &srb->sg_map32;
 419                                 }
 420                         } else {
 421                                 /* XXX Need to handle multiple s/g elements */
 422                                 panic("aac_cam: multiple s/g elements");
 423                         }
 424                 } else {
 425                         srb->sg_map32.SgCount = 0;
 426                         srb->sg_map32.SgEntry[0].SgByteCount = 0;
 427                         srb->data_len = 0;
 428                 }
 429
 430                 break;
 431         }
 432         case XPT_RESET_DEV:
 433                 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) {
 434                         srb->function = AAC_SRB_FUNC_RESET_DEVICE;
 435                         break;
 436                 } else {
 437                         ccb->ccb_h.status = CAM_REQ_CMP;
 438                         xpt_done(ccb);
 439                         return;
 440                 }
 441         default:
 442                 break;
 443         }
 444
 445         srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */
 446         srb->target = ccb->ccb_h.target_id;
 447         srb->lun = ccb->ccb_h.target_lun;
 448         srb->timeout = ccb->ccb_h.timeout;      /* XXX */
 449         srb->retry_limit = 0;
 450
 451         cm->cm_complete = aac_cam_complete;
 452         cm->cm_private = ccb;
 453         cm->cm_timestamp = time_uptime;
 454         cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE;
 455
 456         fib->Header.XferState =
 457             AAC_FIBSTATE_HOSTOWNED      |
 458             AAC_FIBSTATE_INITIALISED    |
 459             AAC_FIBSTATE_FROMHOST       |
 460             AAC_FIBSTATE_REXPECTED      |
 461             AAC_FIBSTATE_NORM;
 462         fib->Header.Size = sizeof(struct aac_fib_header) +
 463             sizeof(struct aac_srb32);
 464
 465         aac_enqueue_ready(cm);
 466         aac_startio(cm->cm_sc);
 467
 468         return;
 469 }
 470
 471 static void
 472 aac_cam_poll(struct cam_sim *sim)
 473 {
 474         /*
 475          * Pinging the interrupt routine isn't very safe, nor is it
 476          * really necessary.  Do nothing.
 477          */
 478 }
 479
 480 static void
 481 aac_cam_complete(struct aac_command *cm)
 482 {
 483         union   ccb *ccb;
 484         struct  aac_srb_response *srbr;
 485         struct  aac_softc *sc;
 486
 487         debug_called(2);
 488
 489         sc = cm->cm_sc;
 490         ccb = cm->cm_private;
 491         srbr = (struct aac_srb_response *)&cm->cm_fib->data[0];
 492
 493         if (srbr->fib_status != 0) {
 494                 device_printf(sc->aac_dev, "Passthru FIB failed!\n");
 495                 ccb->ccb_h.status = CAM_REQ_ABORTED;
 496         } else {
 497                 /*
 498                  * The SRB error codes just happen to match the CAM error
 499                  * codes.  How convienient!
 500                  */
 501                 ccb->ccb_h.status = srbr->srb_status;
 502
 503                 /* Take care of SCSI_IO ops. */
 504                 if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
 505                         u_int8_t command, device;
 506
 507                         ccb->csio.scsi_status = srbr->scsi_status;
 508
 509                         /* Take care of autosense */
 510                         if (srbr->sense_len) {
 511                                 int sense_len, scsi_sense_len;
 512
 513                                 scsi_sense_len = sizeof(struct scsi_sense_data);
 514                                 bzero(&ccb->csio.sense_data, scsi_sense_len);
 515                                 sense_len = (srbr->sense_len >
 516                                     scsi_sense_len) ? scsi_sense_len :
 517                                     srbr->sense_len;
 518                                 bcopy(&srbr->sense[0], &ccb->csio.sense_data,
 519                                     srbr->sense_len);
 520                                 ccb->csio.sense_len = sense_len;
 521                                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
 522                                 // scsi_sense_print(&ccb->csio);
 523                         }
 524
 525                         /* If this is an inquiry command, fake things out */
 526                         if (ccb->ccb_h.flags & CAM_CDB_POINTER)
 527                                 command = ccb->csio.cdb_io.cdb_ptr[0];
 528                         else
 529                                 command = ccb->csio.cdb_io.cdb_bytes[0];
 530
 531                         if (command == INQUIRY) {
 532                                 if (ccb->ccb_h.status == CAM_REQ_CMP) {
 533                                 device = ccb->csio.data_ptr[0] & 0x1f;
 534                                 /*
 535                                  * We want DASD and PROC devices to only be
 536                                  * visible through the pass device.
 537                                  */
 538                                 if ((device == T_DIRECT) ||
 539                                     (device == T_PROCESSOR) ||
 540                                     (sc->flags & AAC_FLAGS_CAM_PASSONLY))
 541                                         ccb->csio.data_ptr[0] =
 542                                             ((device & 0xe0) | T_NODEVICE);
 543                                 } else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT &&
 544                                         ccb->ccb_h.target_lun != 0) {
 545                                         /* fix for INQUIRYs on Lun>0 */
 546                                         ccb->ccb_h.status = CAM_DEV_NOT_THERE;
 547                                 }
 548                         }
 549                 }
 550         }
 551
 552         aac_release_command(cm);
 553         xpt_done(ccb);
 554
 555         return;
 556 }
 557
 558 static u_int32_t
 559 aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb)
 560 {
 561         struct aac_fib *fib;
 562         struct aac_softc *sc;
 563         struct aac_cam *camsc;
 564         struct aac_vmioctl *vmi;
 565         struct aac_resetbus *rbc;
 566         int e;
 567
 568         camsc = (struct aac_cam *)cam_sim_softc(sim);
 569         sc = camsc->inf->aac_sc;
 570
 571         if (sc == NULL) {
 572                 printf("Null sc?\n");
 573                 return (CAM_REQ_ABORTED);
 574         }
 575
 576         aac_alloc_sync_fib(sc, &fib);
 577
 578         vmi = (struct aac_vmioctl *)&fib->data[0];
 579         bzero(vmi, sizeof(struct aac_vmioctl));
 580
 581         vmi->Command = VM_Ioctl;
 582         vmi->ObjType = FT_DRIVE;
 583         vmi->MethId = sc->scsi_method_id;
 584         vmi->ObjId = 0;
 585         vmi->IoctlCmd = ResetBus;
 586
 587         rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0];
 588         rbc->BusNumber = camsc->inf->BusNumber;
 589
 590         e = aac_sync_fib(sc, ContainerCommand, 0, fib,
 591             sizeof(struct aac_vmioctl));
 592         if (e) {
 593                 device_printf(sc->aac_dev,"Error %d sending ResetBus command\n",
 594                     e);
 595                 aac_release_sync_fib(sc);
 596                 return (CAM_REQ_ABORTED);
 597         }
 598
 599         aac_release_sync_fib(sc);
 600         return (CAM_REQ_CMP);
 601 }
 602
 603 static u_int32_t
 604 aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb)
 605 {
 606         return (CAM_UA_ABORT);
 607 }
 608
 609 static u_int32_t
 610 aac_cam_term_io(struct cam_sim *sim, union ccb *ccb)
 611 {
 612         return (CAM_UA_TERMIO);
 613 }
 614