1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2000 BSDi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 /*- 28 * Copyright (c) 2002 Eric Moore 29 * Copyright (c) 2002 LSI Logic Corporation 30 * All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. The party using or redistributing the source code and binary forms 41 * agrees to the disclaimer below and the terms and conditions set forth 42 * herein. 43 * 44 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 47 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 54 * SUCH DAMAGE. 55 * 56 * $FreeBSD: src/sys/dev/amr/amr_cam.c,v 1.29 2011/11/07 06:44:47 ed Exp $ 57 */ 58 59 #include <sys/param.h> 60 #include <sys/systm.h> 61 #include <sys/kernel.h> 62 #include <sys/module.h> 63 64 #include <sys/bio.h> 65 #include <sys/bus.h> 66 #include <sys/conf.h> 67 #include <sys/stat.h> 68 69 #include <bus/cam/cam.h> 70 #include <bus/cam/cam_ccb.h> 71 #include <bus/cam/cam_sim.h> 72 #include <bus/cam/cam_xpt.h> 73 #include <bus/cam/cam_xpt_sim.h> 74 #include <bus/cam/cam_debug.h> 75 #include <bus/cam/scsi/scsi_all.h> 76 #include <bus/cam/scsi/scsi_message.h> 77 78 #include <dev/raid/amr/amrreg.h> 79 #include <dev/raid/amr/amrvar.h> 80 81 static int amr_cam_probe(device_t dev); 82 static int amr_cam_attach(device_t dev); 83 static int amr_cam_detach(device_t dev); 84 static void amr_cam_action(struct cam_sim *sim, union ccb *ccb); 85 static void amr_cam_poll(struct cam_sim *sim); 86 static void amr_cam_complete(struct amr_command *ac); 87 static int amr_cam_command(struct amr_softc *sc, struct amr_command **acp); 88 89 static devclass_t amr_pass_devclass; 90 91 static device_method_t amr_pass_methods[] = { 92 DEVMETHOD(device_probe, amr_cam_probe), 93 DEVMETHOD(device_attach, amr_cam_attach), 94 DEVMETHOD(device_detach, amr_cam_detach), 95 DEVMETHOD_END 96 }; 97 98 static driver_t amr_pass_driver = { 99 "amrp", 100 amr_pass_methods, 101 0 102 }; 103 104 DRIVER_MODULE(amrp, amr, amr_pass_driver, amr_pass_devclass, NULL, NULL); 105 MODULE_VERSION(amrp, 1); 106 MODULE_DEPEND(amrp, amr, 1, 1, 1); 107 MODULE_DEPEND(amrp, cam, 1, 1, 1); 108 109 /*********************************************************************** 110 * Enqueue/dequeue functions 111 */ 112 static __inline void 113 amr_enqueue_ccb(struct amr_softc *sc, union ccb *ccb) 114 { 115 116 TAILQ_INSERT_TAIL(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe); 117 } 118 119 static __inline void 120 amr_requeue_ccb(struct amr_softc *sc, union ccb *ccb) 121 { 122 123 TAILQ_INSERT_HEAD(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe); 124 } 125 126 static __inline union ccb * 127 amr_dequeue_ccb(struct amr_softc *sc) 128 { 129 union ccb *ccb; 130 131 if ((ccb = (union ccb *)TAILQ_FIRST(&sc->amr_cam_ccbq)) != NULL) 132 TAILQ_REMOVE(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe); 133 return(ccb); 134 } 135 136 static int 137 amr_cam_probe(device_t dev) 138 { 139 return (0); 140 } 141 142 /******************************************************************************** 143 * Attach our 'real' SCSI channels to CAM 144 */ 145 static int 146 amr_cam_attach(device_t dev) 147 { 148 struct amr_softc *sc; 149 struct cam_devq *devq; 150 int chn, error; 151 152 sc = device_get_softc(dev); 153 154 /* initialise the ccb queue */ 155 TAILQ_INIT(&sc->amr_cam_ccbq); 156 157 /* 158 * Allocate a devq for all our channels combined. This should 159 * allow for the maximum number of SCSI commands we will accept 160 * at one time. Save the pointer in the softc so we can find it later 161 * during detach. 162 */ 163 if ((devq = cam_simq_alloc(AMR_MAX_SCSI_CMDS)) == NULL) 164 return(ENOMEM); 165 sc->amr_cam_devq = devq; 166 167 /* 168 * Iterate over our channels, registering them with CAM 169 */ 170 for (chn = 0; chn < sc->amr_maxchan; chn++) { 171 172 /* allocate a sim */ 173 if ((sc->amr_cam_sim[chn] = cam_sim_alloc(amr_cam_action, 174 amr_cam_poll, "amr", sc, device_get_unit(sc->amr_dev), 175 &sc->amr_list_lock, 1, AMR_MAX_SCSI_CMDS, devq)) == NULL) { 176 cam_simq_release(devq); 177 device_printf(sc->amr_dev, "CAM SIM attach failed\n"); 178 return(ENOMEM); 179 } 180 181 /* register the bus ID so we can get it later */ 182 lockmgr(&sc->amr_list_lock, LK_EXCLUSIVE); 183 error = xpt_bus_register(sc->amr_cam_sim[chn], chn); 184 lockmgr(&sc->amr_list_lock, LK_RELEASE); 185 if (error) { 186 device_printf(sc->amr_dev, 187 "CAM XPT bus registration failed\n"); 188 return(ENXIO); 189 } 190 } 191 /* 192 * XXX we should scan the config and work out which devices are 193 * actually protected. 194 */ 195 sc->amr_cam_command = amr_cam_command; 196 return(0); 197 } 198 199 /******************************************************************************** 200 * Disconnect ourselves from CAM 201 */ 202 static int 203 amr_cam_detach(device_t dev) 204 { 205 struct amr_softc *sc; 206 int chn; 207 208 sc = device_get_softc(dev); 209 lockmgr(&sc->amr_list_lock, LK_EXCLUSIVE); 210 for (chn = 0; chn < sc->amr_maxchan; chn++) { 211 /* 212 * If a sim was allocated for this channel, free it 213 */ 214 if (sc->amr_cam_sim[chn] != NULL) { 215 xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn])); 216 cam_sim_free(sc->amr_cam_sim[chn]); 217 } 218 } 219 lockmgr(&sc->amr_list_lock, LK_RELEASE); 220 221 /* Now free the devq */ 222 if (sc->amr_cam_devq != NULL) 223 cam_simq_release(sc->amr_cam_devq); 224 225 return (0); 226 } 227 228 /*********************************************************************** 229 *********************************************************************** 230 CAM passthrough interface 231 *********************************************************************** 232 ***********************************************************************/ 233 234 /*********************************************************************** 235 * Handle a request for action from CAM 236 */ 237 static void 238 amr_cam_action(struct cam_sim *sim, union ccb *ccb) 239 { 240 struct amr_softc *sc = cam_sim_softc(sim); 241 242 switch(ccb->ccb_h.func_code) { 243 244 /* 245 * Perform SCSI I/O to a physical device. 246 */ 247 case XPT_SCSI_IO: 248 { 249 struct ccb_hdr *ccbh = &ccb->ccb_h; 250 struct ccb_scsiio *csio = &ccb->csio; 251 252 /* Validate the CCB */ 253 ccbh->status = CAM_REQ_INPROG; 254 255 /* check the CDB length */ 256 if (csio->cdb_len > AMR_MAX_EXTCDB_LEN) 257 ccbh->status = CAM_REQ_INVALID; 258 259 if ((csio->cdb_len > AMR_MAX_CDB_LEN) && 260 (sc->support_ext_cdb == 0)) 261 ccbh->status = CAM_REQ_INVALID; 262 263 /* check that the CDB pointer is not to a physical address */ 264 if ((ccbh->flags & CAM_CDB_POINTER) && 265 (ccbh->flags & CAM_CDB_PHYS)) 266 ccbh->status = CAM_REQ_INVALID; 267 /* 268 * if there is data transfer, it must be to/from a virtual 269 * address 270 */ 271 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 272 if (ccbh->flags & CAM_DATA_PHYS) 273 /* we can't map it */ 274 ccbh->status = CAM_REQ_INVALID; 275 if (ccbh->flags & CAM_SCATTER_VALID) 276 /* we want to do the s/g setup */ 277 ccbh->status = CAM_REQ_INVALID; 278 } 279 280 /* 281 * If the command is to a LUN other than 0, fail it. 282 * This is probably incorrect, but during testing the 283 * firmware did not seem to respect the LUN field, and thus 284 * devices appear echoed. 285 */ 286 if (csio->ccb_h.target_lun != 0) 287 ccbh->status = CAM_DEV_NOT_THERE; 288 289 /* if we're happy with the request, queue it for attention */ 290 if (ccbh->status == CAM_REQ_INPROG) { 291 292 /* save the channel number in the ccb */ 293 csio->ccb_h.sim_priv.entries[0].field= cam_sim_bus(sim); 294 295 amr_enqueue_ccb(sc, ccb); 296 amr_startio(sc); 297 return; 298 } 299 break; 300 } 301 302 case XPT_CALC_GEOMETRY: 303 { 304 cam_calc_geometry(&ccb->ccg, /*extended*/1); 305 break; 306 } 307 308 /* 309 * Return path stats. Some of these should probably be amended. 310 */ 311 case XPT_PATH_INQ: 312 { 313 struct ccb_pathinq *cpi = & ccb->cpi; 314 315 debug(3, "XPT_PATH_INQ"); 316 cpi->version_num = 1; /* XXX??? */ 317 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; 318 cpi->target_sprt = 0; 319 cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN; 320 cpi->hba_eng_cnt = 0; 321 cpi->max_target = AMR_MAX_TARGETS; 322 cpi->max_lun = 0 /* AMR_MAX_LUNS*/; 323 cpi->initiator_id = 7; /* XXX variable? */ 324 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 325 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN); 326 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 327 cpi->unit_number = cam_sim_unit(sim); 328 cpi->bus_id = cam_sim_bus(sim); 329 cpi->base_transfer_speed = 132 * 1024; /* XXX */ 330 cpi->transport = XPORT_SPI; 331 cpi->transport_version = 2; 332 cpi->protocol = PROTO_SCSI; 333 cpi->protocol_version = SCSI_REV_2; 334 cpi->ccb_h.status = CAM_REQ_CMP; 335 336 break; 337 } 338 339 case XPT_RESET_BUS: 340 { 341 struct ccb_pathinq *cpi = & ccb->cpi; 342 343 debug(1, "XPT_RESET_BUS"); 344 cpi->ccb_h.status = CAM_REQ_CMP; 345 break; 346 } 347 348 case XPT_RESET_DEV: 349 { 350 debug(1, "XPT_RESET_DEV"); 351 ccb->ccb_h.status = CAM_REQ_CMP; 352 break; 353 } 354 355 case XPT_GET_TRAN_SETTINGS: 356 { 357 struct ccb_trans_settings *cts = &(ccb->cts); 358 359 debug(3, "XPT_GET_TRAN_SETTINGS"); 360 361 struct ccb_trans_settings_scsi *scsi; 362 struct ccb_trans_settings_spi *spi; 363 364 scsi = &cts->proto_specific.scsi; 365 spi = &cts->xport_specific.spi; 366 367 cts->protocol = PROTO_SCSI; 368 cts->protocol_version = SCSI_REV_2; 369 cts->transport = XPORT_SPI; 370 cts->transport_version = 2; 371 372 if (cts->type == CTS_TYPE_USER_SETTINGS) { 373 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 374 break; 375 } 376 377 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 378 spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT; 379 spi->sync_period = 6; /* 40MHz how wide is this bus? */ 380 spi->sync_offset = 31; /* How to extract this from board? */ 381 382 spi->valid = CTS_SPI_VALID_SYNC_RATE 383 | CTS_SPI_VALID_SYNC_OFFSET 384 | CTS_SPI_VALID_BUS_WIDTH 385 | CTS_SPI_VALID_DISC; 386 scsi->valid = CTS_SCSI_VALID_TQ; 387 ccb->ccb_h.status = CAM_REQ_CMP; 388 break; 389 } 390 391 case XPT_SET_TRAN_SETTINGS: 392 debug(3, "XPT_SET_TRAN_SETTINGS"); 393 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 394 break; 395 396 397 /* 398 * Reject anything else as unsupported. 399 */ 400 default: 401 /* we can't do this */ 402 ccb->ccb_h.status = CAM_REQ_INVALID; 403 break; 404 } 405 406 KKASSERT(lockstatus(&sc->amr_list_lock, curthread) != 0); 407 xpt_done(ccb); 408 } 409 410 /*********************************************************************** 411 * Convert a CAM CCB off the top of the CCB queue to a passthrough SCSI 412 * command. 413 */ 414 static int 415 amr_cam_command(struct amr_softc *sc, struct amr_command **acp) 416 { 417 struct amr_command *ac; 418 struct amr_passthrough *ap; 419 struct amr_ext_passthrough *aep; 420 struct ccb_scsiio *csio; 421 int bus, target, error; 422 423 error = 0; 424 ac = NULL; 425 ap = NULL; 426 aep = NULL; 427 428 /* check to see if there is a ccb for us to work with */ 429 if ((csio = (struct ccb_scsiio *)amr_dequeue_ccb(sc)) == NULL) 430 goto out; 431 432 /* get bus/target, XXX validate against protected devices? */ 433 bus = csio->ccb_h.sim_priv.entries[0].field; 434 target = csio->ccb_h.target_id; 435 436 /* 437 * Build a passthrough command. 438 */ 439 440 /* construct command */ 441 if ((ac = amr_alloccmd(sc)) == NULL) { 442 error = ENOMEM; 443 goto out; 444 } 445 446 /* construct passthrough */ 447 if (sc->support_ext_cdb ) { 448 aep = &ac->ac_ccb->ccb_epthru; 449 aep->ap_timeout = 2; 450 aep->ap_ars = 1; 451 aep->ap_request_sense_length = 14; 452 aep->ap_islogical = 0; 453 aep->ap_channel = bus; 454 aep->ap_scsi_id = target; 455 aep->ap_logical_drive_no = csio->ccb_h.target_lun; 456 aep->ap_cdb_length = csio->cdb_len; 457 aep->ap_data_transfer_length = csio->dxfer_len; 458 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 459 bcopy(csio->cdb_io.cdb_ptr, aep->ap_cdb, csio->cdb_len); 460 } else { 461 bcopy(csio->cdb_io.cdb_bytes, aep->ap_cdb, 462 csio->cdb_len); 463 } 464 /* 465 * we leave the data s/g list and s/g count to the map routine 466 * later 467 */ 468 469 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", aep->ap_cdb[0], 470 aep->ap_cdb_length, csio->dxfer_len, aep->ap_channel, 471 aep->ap_scsi_id, aep->ap_logical_drive_no); 472 473 } else { 474 ap = &ac->ac_ccb->ccb_pthru; 475 ap->ap_timeout = 0; 476 ap->ap_ars = 1; 477 ap->ap_request_sense_length = 14; 478 ap->ap_islogical = 0; 479 ap->ap_channel = bus; 480 ap->ap_scsi_id = target; 481 ap->ap_logical_drive_no = csio->ccb_h.target_lun; 482 ap->ap_cdb_length = csio->cdb_len; 483 ap->ap_data_transfer_length = csio->dxfer_len; 484 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 485 bcopy(csio->cdb_io.cdb_ptr, ap->ap_cdb, csio->cdb_len); 486 } else { 487 bcopy(csio->cdb_io.cdb_bytes, ap->ap_cdb, 488 csio->cdb_len); 489 } 490 /* 491 * we leave the data s/g list and s/g count to the map routine 492 * later 493 */ 494 495 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", ap->ap_cdb[0], 496 ap->ap_cdb_length, csio->dxfer_len, ap->ap_channel, 497 ap->ap_scsi_id, ap->ap_logical_drive_no); 498 } 499 500 ac->ac_flags |= AMR_CMD_CCB; 501 502 ac->ac_data = csio->data_ptr; 503 ac->ac_length = csio->dxfer_len; 504 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 505 ac->ac_flags |= AMR_CMD_DATAIN; 506 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 507 ac->ac_flags |= AMR_CMD_DATAOUT; 508 509 ac->ac_private = csio; 510 ac->ac_complete = amr_cam_complete; 511 if ( sc->support_ext_cdb ) { 512 ac->ac_mailbox.mb_command = AMR_CMD_EXTPASS; 513 } else { 514 ac->ac_mailbox.mb_command = AMR_CMD_PASS; 515 } 516 517 out: 518 if (error != 0) { 519 if (ac != NULL) 520 amr_releasecmd(ac); 521 if (csio != NULL) 522 /* put it back and try again later */ 523 amr_requeue_ccb(sc, (union ccb *)csio); 524 } 525 *acp = ac; 526 return(error); 527 } 528 529 /*********************************************************************** 530 * Check for interrupt status 531 */ 532 static void 533 amr_cam_poll(struct cam_sim *sim) 534 { 535 536 amr_done(cam_sim_softc(sim)); 537 } 538 539 /********************************************************************** 540 * Handle completion of a command submitted via CAM. 541 */ 542 static void 543 amr_cam_complete(struct amr_command *ac) 544 { 545 struct amr_passthrough *ap; 546 struct amr_ext_passthrough *aep; 547 struct ccb_scsiio *csio; 548 struct scsi_inquiry_data *inq; 549 int scsi_status, cdb0; 550 #ifdef AMR_DEBUG 551 char hexstr[HEX_NCPYLEN(16)]; 552 #endif 553 554 ap = &ac->ac_ccb->ccb_pthru; 555 aep = &ac->ac_ccb->ccb_epthru; 556 csio = (struct ccb_scsiio *)ac->ac_private; 557 inq = (struct scsi_inquiry_data *)csio->data_ptr; 558 559 if (ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS) 560 scsi_status = aep->ap_scsi_status; 561 else 562 scsi_status = ap->ap_scsi_status; 563 debug(1, "status 0x%x AP scsi_status 0x%x", ac->ac_status, 564 scsi_status); 565 566 /* Make sure the status is sane */ 567 if ((ac->ac_status != AMR_STATUS_SUCCESS) && (scsi_status == 0)) { 568 csio->ccb_h.status = CAM_REQ_CMP_ERR; 569 goto out; 570 } 571 572 /* 573 * Hide disks from CAM so that they're not picked up and treated as 574 * 'normal' disks. 575 * 576 * If the configuration provides a mechanism to mark a disk a "not 577 * managed", we could add handling for that to allow disks to be 578 * selectively visible. 579 */ 580 581 /* handle passthrough SCSI status */ 582 switch(scsi_status) { 583 case 0: /* completed OK */ 584 if (ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS) 585 cdb0 = aep->ap_cdb[0]; 586 else 587 cdb0 = ap->ap_cdb[0]; 588 if ((cdb0 == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) 589 inq->device = (inq->device & 0xe0) | T_NODEVICE; 590 csio->ccb_h.status = CAM_REQ_CMP; 591 break; 592 593 case 0x02: 594 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 595 csio->scsi_status = SCSI_STATUS_CHECK_COND; 596 if (ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS) 597 bcopy(aep->ap_request_sense_area, &csio->sense_data, 598 AMR_MAX_REQ_SENSE_LEN); 599 else 600 bcopy(ap->ap_request_sense_area, &csio->sense_data, 601 AMR_MAX_REQ_SENSE_LEN); 602 csio->sense_len = AMR_MAX_REQ_SENSE_LEN; 603 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 604 break; 605 606 case 0x08: 607 csio->ccb_h.status = CAM_SCSI_BUSY; 608 break; 609 610 case 0xf0: 611 case 0xf4: 612 default: 613 /* 614 * Non-zero LUNs are already filtered, so there's no need 615 * to return CAM_DEV_NOT_THERE. 616 */ 617 csio->ccb_h.status = CAM_SEL_TIMEOUT; 618 break; 619 } 620 621 out: 622 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 623 debug(2, "%s\n", hexncpy(csio->data_ptr, imin(csio->dxfer_len, 16), 624 hexstr, HEX_NCPYLEN(imin(csio->dxfer_len, 16)), " ")); 625 626 lockmgr(&ac->ac_sc->amr_list_lock, LK_EXCLUSIVE); 627 xpt_done((union ccb *)csio); 628 amr_releasecmd(ac); 629 lockmgr(&ac->ac_sc->amr_list_lock, LK_RELEASE); 630 } 631