Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/aac/aac_cam.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002 Adaptec, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 /* 33 * CAM front-end for communicating with non-DASD devices 34 */ 35 36 #include "opt_aac.h" 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/sysctl.h> 42 #include <sys/lock.h> 43 #include <sys/malloc.h> 44 #include <sys/module.h> 45 #include <sys/mutex.h> 46 47 #include <cam/cam.h> 48 #include <cam/cam_ccb.h> 49 #include <cam/cam_debug.h> 50 #include <cam/cam_periph.h> 51 #include <cam/cam_sim.h> 52 #include <cam/cam_xpt_sim.h> 53 #include <cam/scsi/scsi_all.h> 54 #include <cam/scsi/scsi_message.h> 55 56 #include <sys/bus.h> 57 #include <sys/conf.h> 58 #include <sys/disk.h> 59 60 #include <machine/md_var.h> 61 #include <machine/bus.h> 62 #include <sys/rman.h> 63 64 #include <vm/vm.h> 65 #include <vm/pmap.h> 66 67 #include <dev/aac/aacreg.h> 68 #include <sys/aac_ioctl.h> 69 #include <dev/aac/aacvar.h> 70 71 struct aac_cam { 72 device_t dev; 73 struct aac_sim *inf; 74 struct cam_sim *sim; 75 struct cam_path *path; 76 }; 77 78 static int aac_cam_probe(device_t dev); 79 static int aac_cam_attach(device_t dev); 80 static int aac_cam_detach(device_t dev); 81 static void aac_cam_action(struct cam_sim *, union ccb *); 82 static void aac_cam_poll(struct cam_sim *); 83 static void aac_cam_complete(struct aac_command *); 84 static void aac_cam_rescan(struct aac_softc *sc, uint32_t channel, 85 uint32_t target_id); 86 87 static u_int32_t aac_cam_reset_bus(struct cam_sim *, union ccb *); 88 static u_int32_t aac_cam_abort_ccb(struct cam_sim *, union ccb *); 89 static u_int32_t aac_cam_term_io(struct cam_sim *, union ccb *); 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 DEVMETHOD_END 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, NULL, NULL); 105 MODULE_DEPEND(aacp, cam, 1, 1, 1); 106 107 static 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, NULL, 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 static void 146 aac_cam_event(struct aac_softc *sc, struct aac_event *event, void *arg) 147 { 148 union ccb *ccb; 149 struct aac_cam *camsc; 150 151 switch (event->ev_type) { 152 case AAC_EVENT_CMFREE: 153 ccb = arg; 154 camsc = ccb->ccb_h.sim_priv.entries[0].ptr; 155 free(event, M_AACCAM); 156 xpt_release_simq(camsc->sim, 1); 157 ccb->ccb_h.status = CAM_REQUEUE_REQ; 158 xpt_done(ccb); 159 break; 160 default: 161 device_printf(sc->aac_dev, "unknown event %d in aac_cam\n", 162 event->ev_type); 163 break; 164 } 165 } 166 167 static int 168 aac_cam_probe(device_t dev) 169 { 170 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 171 172 return (0); 173 } 174 175 static int 176 aac_cam_detach(device_t dev) 177 { 178 struct aac_softc *sc; 179 struct aac_cam *camsc; 180 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 181 182 camsc = (struct aac_cam *)device_get_softc(dev); 183 sc = camsc->inf->aac_sc; 184 camsc->inf->aac_cam = NULL; 185 186 mtx_lock(&sc->aac_io_lock); 187 188 xpt_async(AC_LOST_DEVICE, camsc->path, NULL); 189 xpt_free_path(camsc->path); 190 xpt_bus_deregister(cam_sim_path(camsc->sim)); 191 cam_sim_free(camsc->sim, /*free_devq*/TRUE); 192 193 sc->cam_rescan_cb = NULL; 194 195 mtx_unlock(&sc->aac_io_lock); 196 197 return (0); 198 } 199 200 /* 201 * Register the driver as a CAM SIM 202 */ 203 static int 204 aac_cam_attach(device_t dev) 205 { 206 struct cam_devq *devq; 207 struct cam_sim *sim; 208 struct cam_path *path; 209 struct aac_cam *camsc; 210 struct aac_sim *inf; 211 212 fwprintf(NULL, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 213 214 camsc = (struct aac_cam *)device_get_softc(dev); 215 inf = (struct aac_sim *)device_get_ivars(dev); 216 camsc->inf = inf; 217 camsc->inf->aac_cam = camsc; 218 219 devq = cam_simq_alloc(inf->TargetsPerBus); 220 if (devq == NULL) 221 return (EIO); 222 223 sim = cam_sim_alloc(aac_cam_action, aac_cam_poll, "aacp", camsc, 224 device_get_unit(dev), &inf->aac_sc->aac_io_lock, 1, 1, devq); 225 if (sim == NULL) { 226 cam_simq_free(devq); 227 return (EIO); 228 } 229 230 /* Since every bus has it's own sim, every bus 'appears' as bus 0 */ 231 mtx_lock(&inf->aac_sc->aac_io_lock); 232 if (xpt_bus_register(sim, dev, 0) != CAM_SUCCESS) { 233 cam_sim_free(sim, TRUE); 234 mtx_unlock(&inf->aac_sc->aac_io_lock); 235 return (EIO); 236 } 237 238 if (xpt_create_path(&path, NULL, cam_sim_path(sim), 239 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 240 xpt_bus_deregister(cam_sim_path(sim)); 241 cam_sim_free(sim, TRUE); 242 mtx_unlock(&inf->aac_sc->aac_io_lock); 243 return (EIO); 244 } 245 inf->aac_sc->cam_rescan_cb = aac_cam_rescan; 246 mtx_unlock(&inf->aac_sc->aac_io_lock); 247 248 camsc->sim = sim; 249 camsc->path = path; 250 251 return (0); 252 } 253 254 static void 255 aac_cam_action(struct cam_sim *sim, union ccb *ccb) 256 { 257 struct aac_cam *camsc; 258 struct aac_softc *sc; 259 struct aac_srb *srb; 260 struct aac_fib *fib; 261 struct aac_command *cm; 262 263 camsc = (struct aac_cam *)cam_sim_softc(sim); 264 sc = camsc->inf->aac_sc; 265 fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 266 267 /* Synchronous ops, and ops that don't require communication with the 268 * controller */ 269 switch(ccb->ccb_h.func_code) { 270 case XPT_SCSI_IO: 271 case XPT_RESET_DEV: 272 /* These are handled down below */ 273 break; 274 case XPT_CALC_GEOMETRY: 275 { 276 struct ccb_calc_geometry *ccg; 277 u_int32_t size_mb; 278 u_int32_t secs_per_cylinder; 279 280 ccg = &ccb->ccg; 281 size_mb = ccg->volume_size / 282 ((1024L * 1024L) / ccg->block_size); 283 if (size_mb >= (2 * 1024)) { /* 2GB */ 284 ccg->heads = 255; 285 ccg->secs_per_track = 63; 286 } else if (size_mb >= (1 * 1024)) { /* 1GB */ 287 ccg->heads = 128; 288 ccg->secs_per_track = 32; 289 } else { 290 ccg->heads = 64; 291 ccg->secs_per_track = 32; 292 } 293 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 294 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 295 296 ccb->ccb_h.status = CAM_REQ_CMP; 297 xpt_done(ccb); 298 return; 299 } 300 case XPT_PATH_INQ: 301 { 302 struct ccb_pathinq *cpi = &ccb->cpi; 303 304 cpi->version_num = 1; 305 cpi->hba_inquiry = PI_WIDE_16; 306 cpi->target_sprt = 0; 307 308 /* 309 * Resetting via the passthrough or parallel bus scan 310 * causes problems. 311 */ 312 cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN; 313 cpi->hba_eng_cnt = 0; 314 cpi->max_target = camsc->inf->TargetsPerBus; 315 cpi->max_lun = 8; /* Per the controller spec */ 316 cpi->initiator_id = camsc->inf->InitiatorBusId; 317 cpi->bus_id = camsc->inf->BusNumber; 318 cpi->base_transfer_speed = 3300; 319 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 320 strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 321 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 322 cpi->unit_number = cam_sim_unit(sim); 323 cpi->transport = XPORT_SPI; 324 cpi->transport_version = 2; 325 cpi->protocol = PROTO_SCSI; 326 cpi->protocol_version = SCSI_REV_2; 327 ccb->ccb_h.status = CAM_REQ_CMP; 328 xpt_done(ccb); 329 return; 330 } 331 case XPT_GET_TRAN_SETTINGS: 332 { 333 struct ccb_trans_settings_scsi *scsi = 334 &ccb->cts.proto_specific.scsi; 335 struct ccb_trans_settings_spi *spi = 336 &ccb->cts.xport_specific.spi; 337 ccb->cts.protocol = PROTO_SCSI; 338 ccb->cts.protocol_version = SCSI_REV_2; 339 ccb->cts.transport = XPORT_SPI; 340 ccb->cts.transport_version = 2; 341 if (ccb->ccb_h.target_lun != CAM_LUN_WILDCARD) { 342 scsi->valid = CTS_SCSI_VALID_TQ; 343 spi->valid |= CTS_SPI_VALID_DISC; 344 } else { 345 scsi->valid = 0; 346 } 347 ccb->ccb_h.status = CAM_REQ_CMP; 348 xpt_done(ccb); 349 return; 350 } 351 case XPT_SET_TRAN_SETTINGS: 352 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 353 xpt_done(ccb); 354 return; 355 case XPT_RESET_BUS: 356 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) { 357 ccb->ccb_h.status = aac_cam_reset_bus(sim, ccb); 358 } else { 359 ccb->ccb_h.status = CAM_REQ_CMP; 360 } 361 xpt_done(ccb); 362 return; 363 case XPT_ABORT: 364 ccb->ccb_h.status = aac_cam_abort_ccb(sim, ccb); 365 xpt_done(ccb); 366 return; 367 case XPT_TERM_IO: 368 ccb->ccb_h.status = aac_cam_term_io(sim, ccb); 369 xpt_done(ccb); 370 return; 371 default: 372 device_printf(sc->aac_dev, "Unsupported command 0x%x\n", 373 ccb->ccb_h.func_code); 374 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 375 xpt_done(ccb); 376 return; 377 } 378 379 /* Async ops that require communcation with the controller */ 380 381 if (aac_alloc_command(sc, &cm)) { 382 struct aac_event *event; 383 384 xpt_freeze_simq(sim, 1); 385 ccb->ccb_h.status = CAM_RESRC_UNAVAIL; 386 ccb->ccb_h.sim_priv.entries[0].ptr = camsc; 387 event = malloc(sizeof(struct aac_event), M_AACCAM, 388 M_NOWAIT | M_ZERO); 389 if (event == NULL) { 390 device_printf(sc->aac_dev, 391 "Warning, out of memory for event\n"); 392 return; 393 } 394 event->ev_callback = aac_cam_event; 395 event->ev_arg = ccb; 396 event->ev_type = AAC_EVENT_CMFREE; 397 aac_add_event(sc, event); 398 return; 399 } 400 401 fib = cm->cm_fib; 402 srb = (struct aac_srb *)&fib->data[0]; 403 cm->cm_datalen = 0; 404 405 switch (ccb->ccb_h.flags & CAM_DIR_MASK) { 406 case CAM_DIR_IN: 407 srb->flags = AAC_SRB_FLAGS_DATA_IN; 408 cm->cm_flags |= AAC_CMD_DATAIN; 409 break; 410 case CAM_DIR_OUT: 411 srb->flags = AAC_SRB_FLAGS_DATA_OUT; 412 cm->cm_flags |= AAC_CMD_DATAOUT; 413 break; 414 case CAM_DIR_NONE: 415 srb->flags = AAC_SRB_FLAGS_NO_DATA_XFER; 416 break; 417 default: 418 srb->flags = AAC_SRB_FLAGS_UNSPECIFIED_DIRECTION; 419 cm->cm_flags |= AAC_CMD_DATAIN | AAC_CMD_DATAOUT; 420 break; 421 } 422 423 switch(ccb->ccb_h.func_code) { 424 case XPT_SCSI_IO: 425 { 426 struct ccb_scsiio *csio = &ccb->csio; 427 428 srb->function = AAC_SRB_FUNC_EXECUTE_SCSI; 429 430 /* 431 * Copy the CDB into the SRB. It's only 6-16 bytes, 432 * so a copy is not too expensive. 433 */ 434 srb->cdb_len = csio->cdb_len; 435 if (ccb->ccb_h.flags & CAM_CDB_POINTER) 436 bcopy(csio->cdb_io.cdb_ptr, (u_int8_t *)&srb->cdb[0], 437 srb->cdb_len); 438 else 439 bcopy(csio->cdb_io.cdb_bytes, (u_int8_t *)&srb->cdb[0], 440 srb->cdb_len); 441 442 /* Set command */ 443 fib->Header.Command = (sc->flags & AAC_FLAGS_SG_64BIT) ? 444 ScsiPortCommandU64 : ScsiPortCommand; 445 446 /* Map the s/g list. XXX 32bit addresses only! */ 447 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 448 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) { 449 case CAM_DATA_VADDR: 450 srb->data_len = csio->dxfer_len; 451 /* 452 * Arrange things so that the S/G 453 * map will get set up automagically 454 */ 455 cm->cm_data = (void *)csio->data_ptr; 456 cm->cm_datalen = csio->dxfer_len; 457 cm->cm_sgtable = &srb->sg_map; 458 break; 459 case CAM_DATA_PADDR: 460 /* Send a 32bit command */ 461 fib->Header.Command = ScsiPortCommand; 462 srb->sg_map.SgCount = 1; 463 srb->sg_map.SgEntry[0].SgAddress = 464 (uint32_t)(uintptr_t)csio->data_ptr; 465 srb->sg_map.SgEntry[0].SgByteCount = 466 csio->dxfer_len; 467 srb->data_len = csio->dxfer_len; 468 break; 469 default: 470 /* XXX Need to handle multiple s/g elements */ 471 panic("aac_cam: multiple s/g elements"); 472 } 473 } else { 474 srb->sg_map.SgCount = 0; 475 srb->sg_map.SgEntry[0].SgByteCount = 0; 476 srb->data_len = 0; 477 } 478 479 break; 480 } 481 case XPT_RESET_DEV: 482 if (!(sc->flags & AAC_FLAGS_CAM_NORESET)) { 483 srb->function = AAC_SRB_FUNC_RESET_DEVICE; 484 break; 485 } else { 486 ccb->ccb_h.status = CAM_REQ_CMP; 487 xpt_done(ccb); 488 return; 489 } 490 default: 491 break; 492 } 493 494 srb->bus = camsc->inf->BusNumber; /* Bus number relative to the card */ 495 srb->target = ccb->ccb_h.target_id; 496 srb->lun = ccb->ccb_h.target_lun; 497 srb->timeout = ccb->ccb_h.timeout; /* XXX */ 498 srb->retry_limit = 0; 499 500 cm->cm_complete = aac_cam_complete; 501 cm->cm_private = ccb; 502 cm->cm_timestamp = time_uptime; 503 504 fib->Header.XferState = 505 AAC_FIBSTATE_HOSTOWNED | 506 AAC_FIBSTATE_INITIALISED | 507 AAC_FIBSTATE_FROMHOST | 508 AAC_FIBSTATE_REXPECTED | 509 AAC_FIBSTATE_NORM; 510 fib->Header.Size = sizeof(struct aac_fib_header) + 511 sizeof(struct aac_srb); 512 513 aac_enqueue_ready(cm); 514 aac_startio(cm->cm_sc); 515 } 516 517 static void 518 aac_cam_poll(struct cam_sim *sim) 519 { 520 /* 521 * Pinging the interrupt routine isn't very safe, nor is it 522 * really necessary. Do nothing. 523 */ 524 } 525 526 static void 527 aac_cam_fix_inquiry(struct aac_softc *sc, union ccb *ccb) 528 { 529 struct scsi_inquiry_data *inq; 530 uint8_t *data; 531 uint8_t device, qual; 532 533 /* If this is an inquiry command, fake things out */ 534 if (ccb->ccb_h.flags & CAM_CDB_POINTER) 535 data = ccb->csio.cdb_io.cdb_ptr; 536 else 537 data = ccb->csio.cdb_io.cdb_bytes; 538 539 if (data[0] != INQUIRY) 540 return; 541 542 if (ccb->ccb_h.status == CAM_REQ_CMP) { 543 inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr; 544 device = SID_TYPE(inq); 545 qual = SID_QUAL(inq); 546 547 /* 548 * We want DASD and PROC devices to only be 549 * visible through the pass device. 550 */ 551 if (((device == T_DIRECT) || 552 (device == T_PROCESSOR) || 553 (sc->flags & AAC_FLAGS_CAM_PASSONLY))) { 554 /* 555 * Some aac(4) adapters will always report that a direct 556 * access device is offline in response to a INQUIRY 557 * command that does not retrieve vital product data. 558 * Force the qualifier to connected so that upper layers 559 * correctly recognize that a disk is present. 560 */ 561 if ((data[1] & SI_EVPD) == 0 && device == T_DIRECT && 562 qual == SID_QUAL_LU_OFFLINE) 563 qual = SID_QUAL_LU_CONNECTED; 564 ccb->csio.data_ptr[0] = (qual << 5) | T_NODEVICE; 565 } 566 } else if (ccb->ccb_h.status == CAM_SEL_TIMEOUT && 567 ccb->ccb_h.target_lun != 0) { 568 /* fix for INQUIRYs on Lun>0 */ 569 ccb->ccb_h.status = CAM_DEV_NOT_THERE; 570 } 571 } 572 573 static void 574 aac_cam_complete(struct aac_command *cm) 575 { 576 union ccb *ccb; 577 struct aac_srb_response *srbr; 578 struct aac_softc *sc; 579 int sense_returned; 580 581 sc = cm->cm_sc; 582 fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, ""); 583 ccb = cm->cm_private; 584 srbr = (struct aac_srb_response *)&cm->cm_fib->data[0]; 585 586 if (srbr->fib_status != 0) { 587 device_printf(sc->aac_dev, "Passthru FIB failed!\n"); 588 ccb->ccb_h.status = CAM_REQ_ABORTED; 589 } else { 590 /* 591 * The SRB error codes just happen to match the CAM error 592 * codes. How convenient! 593 */ 594 ccb->ccb_h.status = srbr->srb_status; 595 596 /* Take care of SCSI_IO ops. */ 597 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 598 ccb->csio.scsi_status = srbr->scsi_status; 599 600 /* Take care of autosense */ 601 if (srbr->sense_len) { 602 sense_returned = srbr->sense_len; 603 if (sense_returned < ccb->csio.sense_len) 604 ccb->csio.sense_resid = 605 ccb->csio.sense_len - 606 sense_returned; 607 else 608 ccb->csio.sense_resid = 0; 609 bzero(&ccb->csio.sense_data, 610 sizeof(struct scsi_sense_data)); 611 bcopy(&srbr->sense[0], &ccb->csio.sense_data, 612 min(ccb->csio.sense_len, sense_returned)); 613 ccb->ccb_h.status |= CAM_AUTOSNS_VALID; 614 // scsi_sense_print(&ccb->csio); 615 } 616 617 aac_cam_fix_inquiry(sc, ccb); 618 } 619 } 620 621 aac_release_command(cm); 622 xpt_done(ccb); 623 } 624 625 static u_int32_t 626 aac_cam_reset_bus(struct cam_sim *sim, union ccb *ccb) 627 { 628 struct aac_fib *fib; 629 struct aac_softc *sc; 630 struct aac_cam *camsc; 631 struct aac_vmioctl *vmi; 632 struct aac_resetbus *rbc; 633 int e; 634 635 camsc = (struct aac_cam *)cam_sim_softc(sim); 636 sc = camsc->inf->aac_sc; 637 638 if (sc == NULL) { 639 printf("aac: Null sc?\n"); 640 return (CAM_REQ_ABORTED); 641 } 642 643 aac_alloc_sync_fib(sc, &fib); 644 645 vmi = (struct aac_vmioctl *)&fib->data[0]; 646 bzero(vmi, sizeof(struct aac_vmioctl)); 647 648 vmi->Command = VM_Ioctl; 649 vmi->ObjType = FT_DRIVE; 650 vmi->MethId = sc->scsi_method_id; 651 vmi->ObjId = 0; 652 vmi->IoctlCmd = ResetBus; 653 654 rbc = (struct aac_resetbus *)&vmi->IoctlBuf[0]; 655 rbc->BusNumber = camsc->inf->BusNumber; 656 657 e = aac_sync_fib(sc, ContainerCommand, 0, fib, 658 sizeof(struct aac_vmioctl)); 659 if (e) { 660 device_printf(sc->aac_dev,"Error %d sending ResetBus command\n", 661 e); 662 aac_release_sync_fib(sc); 663 return (CAM_REQ_ABORTED); 664 } 665 666 aac_release_sync_fib(sc); 667 return (CAM_REQ_CMP); 668 } 669 670 static u_int32_t 671 aac_cam_abort_ccb(struct cam_sim *sim, union ccb *ccb) 672 { 673 return (CAM_UA_ABORT); 674 } 675 676 static u_int32_t 677 aac_cam_term_io(struct cam_sim *sim, union ccb *ccb) 678 { 679 return (CAM_UA_TERMIO); 680 }
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