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 * Copyright (c) 2002 Eric Moore 28 * Copyright (c) 2002 LSI Logic Corporation 29 * All rights reserved. 30 * 31 * Redistribution and use in source and binary forms, with or without 32 * modification, are permitted provided that the following conditions 33 * are met: 34 * 1. Redistributions of source code must retain the above copyright 35 * notice, this list of conditions and the following disclaimer. 36 * 2. Redistributions in binary form must reproduce the above copyright 37 * notice, this list of conditions and the following disclaimer in the 38 * documentation and/or other materials provided with the distribution. 39 * 3. The party using or redistributing the source code and binary forms 40 * agrees to the disclaimer below and the terms and conditions set forth 41 * herein. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53 * SUCH DAMAGE. 54 * 55 * $FreeBSD: src/sys/dev/amr/amr_cam.c,v 1.1.2.3 2002/11/11 13:19:10 emoore Exp $ 56 * $DragonFly: src/sys/dev/raid/amr/amr_cam.c,v 1.10 2008/02/10 00:01:03 pavalos Exp $ 57 */ 58 59 #include <sys/param.h> 60 #include <sys/systm.h> 61 #include <sys/malloc.h> 62 #include <sys/kernel.h> 63 64 #include "amr_compat.h" 65 #include <sys/bus.h> 66 #include <sys/conf.h> 67 #include <sys/devicestat.h> 68 #include <sys/disk.h> 69 #include <sys/stat.h> 70 71 #include <bus/cam/cam.h> 72 #include <bus/cam/cam_ccb.h> 73 #include <bus/cam/cam_sim.h> 74 #include <bus/cam/cam_xpt.h> 75 #include <bus/cam/cam_xpt_sim.h> 76 #include <bus/cam/cam_debug.h> 77 #include <bus/cam/scsi/scsi_all.h> 78 #include <bus/cam/scsi/scsi_message.h> 79 80 #include "amrreg.h" 81 #include "amrvar.h" 82 83 static void amr_cam_action(struct cam_sim *sim, union ccb *ccb); 84 static void amr_cam_poll(struct cam_sim *sim); 85 static void amr_cam_complete(struct amr_command *ac); 86 static void amr_cam_complete_extcdb(struct amr_command *ac); 87 88 89 /******************************************************************************** 90 * Enqueue/dequeue functions 91 */ 92 static __inline void 93 amr_enqueue_ccb(struct amr_softc *sc, union ccb *ccb) 94 { 95 crit_enter(); 96 TAILQ_INSERT_TAIL(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe); 97 crit_exit(); 98 } 99 100 static __inline void 101 amr_requeue_ccb(struct amr_softc *sc, union ccb *ccb) 102 { 103 crit_enter(); 104 TAILQ_INSERT_HEAD(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe); 105 crit_exit(); 106 } 107 108 static __inline union ccb * 109 amr_dequeue_ccb(struct amr_softc *sc) 110 { 111 union ccb *ccb; 112 113 crit_enter(); 114 if ((ccb = (union ccb *)TAILQ_FIRST(&sc->amr_cam_ccbq)) != NULL) 115 TAILQ_REMOVE(&sc->amr_cam_ccbq, &ccb->ccb_h, sim_links.tqe); 116 crit_exit(); 117 return(ccb); 118 } 119 120 /******************************************************************************** 121 * Attach our 'real' SCSI channels to CAM 122 */ 123 int 124 amr_cam_attach(struct amr_softc *sc) 125 { 126 struct cam_devq *devq; 127 int chn; 128 129 /* initialise the ccb queue */ 130 TAILQ_INIT(&sc->amr_cam_ccbq); 131 132 /* 133 * Allocate a devq for all our channels combined. This should 134 * allow for the maximum number of SCSI commands we will accept 135 * at one time. 136 */ 137 if ((devq = cam_simq_alloc(AMR_MAX_SCSI_CMDS)) == NULL) 138 return(ENOMEM); 139 140 /* 141 * Iterate over our channels, registering them with CAM 142 */ 143 for (chn = 0; chn < sc->amr_maxchan; chn++) { 144 145 /* allocate a sim */ 146 if ((sc->amr_cam_sim[chn] = cam_sim_alloc(amr_cam_action, 147 amr_cam_poll, 148 "amr", 149 sc, 150 device_get_unit(sc->amr_dev), 151 1, 152 AMR_MAX_SCSI_CMDS, 153 devq)) == NULL) { 154 device_printf(sc->amr_dev, "CAM SIM attach failed\n"); 155 return(ENOMEM); 156 } 157 158 /* register the bus ID so we can get it later */ 159 if (xpt_bus_register(sc->amr_cam_sim[chn], chn)) { 160 device_printf(sc->amr_dev, "CAM XPT bus registration failed\n"); 161 return(ENXIO); 162 } 163 } 164 cam_simq_release(devq); 165 /* 166 * XXX we should scan the config and work out which devices are actually 167 * protected. 168 */ 169 return(0); 170 } 171 172 /******************************************************************************** 173 * Disconnect ourselves from CAM 174 */ 175 void 176 amr_cam_detach(struct amr_softc *sc) 177 { 178 int chn; 179 180 /* 181 * If a sim was allocated for a channel, free it 182 */ 183 for (chn = 0; chn < sc->amr_maxchan; chn++) { 184 if (sc->amr_cam_sim[chn] != NULL) { 185 xpt_bus_deregister(cam_sim_path(sc->amr_cam_sim[chn])); 186 cam_sim_free(sc->amr_cam_sim[chn]); 187 } 188 } 189 } 190 191 /******************************************************************************** 192 ******************************************************************************** 193 CAM passthrough interface 194 ******************************************************************************** 195 ********************************************************************************/ 196 197 /******************************************************************************** 198 * Handle a request for action from CAM 199 */ 200 static void 201 amr_cam_action(struct cam_sim *sim, union ccb *ccb) 202 { 203 struct amr_softc *sc = cam_sim_softc(sim); 204 205 switch(ccb->ccb_h.func_code) { 206 207 /* 208 * Perform SCSI I/O to a physical device. 209 */ 210 case XPT_SCSI_IO: 211 { 212 struct ccb_hdr *ccbh = &ccb->ccb_h; 213 struct ccb_scsiio *csio = &ccb->csio; 214 215 /* Validate the CCB */ 216 ccbh->status = CAM_REQ_INPROG; 217 218 /* check the CDB length */ 219 if (csio->cdb_len > AMR_MAX_EXTCDB_LEN) 220 ccbh->status = CAM_REQ_CMP_ERR; 221 222 if ((csio->cdb_len > AMR_MAX_CDB_LEN) && (sc->support_ext_cdb == 0 )) 223 ccbh->status = CAM_REQ_CMP_ERR; 224 225 /* check that the CDB pointer is not to a physical address */ 226 if ((ccbh->flags & CAM_CDB_POINTER) && (ccbh->flags & CAM_CDB_PHYS)) 227 ccbh->status = CAM_REQ_CMP_ERR; 228 229 /* if there is data transfer, it must be to/from a virtual address */ 230 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 231 if (ccbh->flags & CAM_DATA_PHYS) /* we can't map it */ 232 ccbh->status = CAM_REQ_CMP_ERR; 233 if (ccbh->flags & CAM_SCATTER_VALID) /* we want to do the s/g setup */ 234 ccbh->status = CAM_REQ_CMP_ERR; 235 } 236 237 /* 238 * If the command is to a LUN other than 0, fail it. 239 * This is probably incorrect, but during testing the firmware did not 240 * seem to respect the LUN field, and thus devices appear echoed. 241 */ 242 if (csio->ccb_h.target_lun != 0) 243 ccbh->status = CAM_REQ_CMP_ERR; 244 245 /* if we're happy with the request, queue it for attention */ 246 if (ccbh->status == CAM_REQ_INPROG) { 247 248 /* save the channel number in the ccb */ 249 csio->ccb_h.sim_priv.entries[0].field = cam_sim_bus(sim); 250 251 amr_enqueue_ccb(sc, ccb); 252 amr_startio(sc); 253 return; 254 } 255 break; 256 } 257 258 case XPT_CALC_GEOMETRY: 259 { 260 struct ccb_calc_geometry *ccg = &ccb->ccg; 261 u_int32_t size_in_mb; 262 u_int32_t secs_per_cylinder; 263 264 size_in_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size); 265 266 if (size_in_mb > 1024) { 267 ccg->heads = 255; 268 ccg->secs_per_track = 63; 269 } else { 270 ccg->heads = 64; 271 ccg->secs_per_track = 32; 272 } 273 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 274 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 275 ccb->ccb_h.status = CAM_REQ_CMP; 276 break; 277 } 278 279 /* 280 * Return path stats. Some of these should probably be 281 * amended. 282 */ 283 case XPT_PATH_INQ: 284 { 285 struct ccb_pathinq *cpi = & ccb->cpi; 286 287 debug(3, "XPT_PATH_INQ"); 288 cpi->version_num = 1; /* XXX??? */ 289 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16; 290 cpi->target_sprt = 0; 291 cpi->hba_misc = PIM_NOBUSRESET; 292 cpi->hba_eng_cnt = 0; 293 cpi->max_target = AMR_MAX_TARGETS; 294 cpi->max_lun = 0 /* AMR_MAX_LUNS*/; 295 cpi->initiator_id = 7; /* XXX variable? */ 296 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 297 strncpy(cpi->hba_vid, "LSI", HBA_IDLEN); 298 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 299 cpi->unit_number = cam_sim_unit(sim); 300 cpi->bus_id = cam_sim_bus(sim); 301 cpi->base_transfer_speed = 132 * 1024; /* XXX get from controller? */ 302 cpi->transport = XPORT_SPI; 303 cpi->transport_version = 2; 304 cpi->protocol = PROTO_SCSI; 305 cpi->protocol_version = SCSI_REV_2; 306 cpi->ccb_h.status = CAM_REQ_CMP; 307 308 break; 309 } 310 311 case XPT_RESET_BUS: 312 { 313 struct ccb_pathinq *cpi = & ccb->cpi; 314 315 debug(1, "XPT_RESET_BUS"); 316 cpi->ccb_h.status = CAM_REQ_CMP; 317 break; 318 } 319 320 case XPT_RESET_DEV: 321 { 322 debug(1, "XPT_RESET_DEV"); 323 ccb->ccb_h.status = CAM_REQ_CMP; 324 break; 325 } 326 327 case XPT_GET_TRAN_SETTINGS: 328 { 329 struct ccb_trans_settings *cts = &(ccb->cts); 330 331 debug(3, "XPT_GET_TRAN_SETTINGS"); 332 333 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 334 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 335 336 cts->protocol = PROTO_SCSI; 337 cts->protocol_version = SCSI_REV_2; 338 cts->transport = XPORT_SPI; 339 cts->transport_version = 2; 340 341 if (cts->type == CTS_TYPE_USER_SETTINGS) { 342 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 343 break; 344 } 345 346 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 347 spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT; 348 spi->sync_period = 6; /* 40MHz how wide is this bus? */ 349 spi->sync_offset = 31; /* How to extract this from board? */ 350 351 spi->valid = CTS_SPI_VALID_SYNC_RATE 352 | CTS_SPI_VALID_SYNC_OFFSET 353 | CTS_SPI_VALID_BUS_WIDTH 354 | CTS_SPI_VALID_DISC; 355 scsi->valid = CTS_SCSI_VALID_TQ; 356 ccb->ccb_h.status = CAM_REQ_CMP; 357 break; 358 } 359 360 case XPT_SET_TRAN_SETTINGS: 361 debug(3, "XPT_SET_TRAN_SETTINGS"); 362 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 363 break; 364 365 366 /* 367 * Reject anything else as unsupported. 368 */ 369 default: 370 /* we can't do this */ 371 ccb->ccb_h.status = CAM_REQ_INVALID; 372 break; 373 } 374 xpt_done(ccb); 375 } 376 377 /******************************************************************************** 378 * Convert a CAM CCB off the top of the CCB queue to a passthrough SCSI command. 379 */ 380 int 381 amr_cam_command(struct amr_softc *sc, struct amr_command **acp) 382 { 383 struct amr_command *ac; 384 struct amr_passthrough *ap; 385 struct amr_ext_passthrough *aep; 386 struct ccb_scsiio *csio; 387 int bus, target, error; 388 389 error = 0; 390 ac = NULL; 391 ap = NULL; 392 aep = NULL; 393 394 /* check to see if there is a ccb for us to work with */ 395 if ((csio = (struct ccb_scsiio *)amr_dequeue_ccb(sc)) == NULL) 396 goto out; 397 398 /* get bus/target, XXX validate against protected devices? */ 399 bus = csio->ccb_h.sim_priv.entries[0].field; 400 target = csio->ccb_h.target_id; 401 402 /* 403 * Build a passthrough command. 404 */ 405 406 /* construct passthrough */ 407 if (sc->support_ext_cdb ) { 408 aep = kmalloc(sizeof(*aep), M_DEVBUF, M_INTWAIT | M_ZERO); 409 aep->ap_timeout = 2; 410 aep->ap_ars = 1; 411 aep->ap_request_sense_length = 14; 412 aep->ap_islogical = 0; 413 aep->ap_channel = bus; 414 aep->ap_scsi_id = target; 415 aep->ap_logical_drive_no = csio->ccb_h.target_lun; 416 aep->ap_cdb_length = csio->cdb_len; 417 aep->ap_data_transfer_length = csio->dxfer_len; 418 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 419 bcopy(csio->cdb_io.cdb_ptr, aep->ap_cdb, csio->cdb_len); 420 } else { 421 bcopy(csio->cdb_io.cdb_bytes, aep->ap_cdb, csio->cdb_len); 422 } 423 /* we leave the data s/g list and s/g count to the map routine later */ 424 425 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", aep->ap_cdb[0], aep->ap_cdb_length, csio->dxfer_len, 426 aep->ap_channel, aep->ap_scsi_id, aep->ap_logical_drive_no); 427 428 } else { 429 ap = kmalloc(sizeof(*ap), M_DEVBUF, M_INTWAIT | M_ZERO); 430 ap->ap_timeout = 0; 431 ap->ap_ars = 1; 432 ap->ap_request_sense_length = 14; 433 ap->ap_islogical = 0; 434 ap->ap_channel = bus; 435 ap->ap_scsi_id = target; 436 ap->ap_logical_drive_no = csio->ccb_h.target_lun; 437 ap->ap_cdb_length = csio->cdb_len; 438 ap->ap_data_transfer_length = csio->dxfer_len; 439 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 440 bcopy(csio->cdb_io.cdb_ptr, ap->ap_cdb, csio->cdb_len); 441 } else { 442 bcopy(csio->cdb_io.cdb_bytes, ap->ap_cdb, csio->cdb_len); 443 } 444 /* we leave the data s/g list and s/g count to the map routine later */ 445 446 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", ap->ap_cdb[0], ap->ap_cdb_length, csio->dxfer_len, 447 ap->ap_channel, ap->ap_scsi_id, ap->ap_logical_drive_no); 448 } 449 450 /* construct command */ 451 if ((ac = amr_alloccmd(sc)) == NULL) { 452 error = ENOMEM; 453 goto out; 454 } 455 456 ac->ac_flags |= AMR_CMD_DATAOUT; 457 458 ac->ac_ccb_data = csio->data_ptr; 459 ac->ac_ccb_length = csio->dxfer_len; 460 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 461 ac->ac_flags |= AMR_CMD_CCB_DATAIN; 462 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 463 ac->ac_flags |= AMR_CMD_CCB_DATAOUT; 464 465 ac->ac_private = csio; 466 if ( sc->support_ext_cdb ) { 467 ac->ac_data = aep; 468 ac->ac_length = sizeof(*aep); 469 ac->ac_complete = amr_cam_complete_extcdb; 470 ac->ac_mailbox.mb_command = AMR_CMD_EXTPASS; 471 } else { 472 ac->ac_data = ap; 473 ac->ac_length = sizeof(*ap); 474 ac->ac_complete = amr_cam_complete; 475 ac->ac_mailbox.mb_command = AMR_CMD_PASS; 476 } 477 478 out: 479 if (error != 0) { 480 if (ac != NULL) 481 amr_releasecmd(ac); 482 if (ap != NULL) 483 kfree(ap, M_DEVBUF); 484 if (aep != NULL) 485 kfree(aep, M_DEVBUF); 486 if (csio != NULL) /* put it back and try again later */ 487 amr_requeue_ccb(sc, (union ccb *)csio); 488 } 489 *acp = ac; 490 return(error); 491 } 492 493 /******************************************************************************** 494 * Check for interrupt status 495 */ 496 static void 497 amr_cam_poll(struct cam_sim *sim) 498 { 499 amr_done(cam_sim_softc(sim)); 500 } 501 502 /******************************************************************************** 503 * Handle completion of a command submitted via CAM. 504 */ 505 static void 506 amr_cam_complete(struct amr_command *ac) 507 { 508 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data; 509 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private; 510 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr; 511 512 /* XXX note that we're ignoring ac->ac_status - good idea? */ 513 514 debug(1, "status 0x%x scsi_status 0x%x", ac->ac_status, ap->ap_scsi_status); 515 516 /* 517 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks. 518 * 519 * If the configuration provides a mechanism to mark a disk a "not managed", we 520 * could add handling for that to allow disks to be selectively visible. 521 */ 522 523 if ((ap->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) { 524 bzero(csio->data_ptr, csio->dxfer_len); 525 if (ap->ap_scsi_status == 0xf0) { 526 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 527 } else { 528 csio->ccb_h.status = CAM_DEV_NOT_THERE; 529 } 530 } else { 531 532 /* handle passthrough SCSI status */ 533 switch(ap->ap_scsi_status) { 534 case 0: /* completed OK */ 535 csio->ccb_h.status = CAM_REQ_CMP; 536 break; 537 538 case 0x02: 539 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 540 csio->scsi_status = SCSI_STATUS_CHECK_COND; 541 bcopy(ap->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN); 542 csio->sense_len = AMR_MAX_REQ_SENSE_LEN; 543 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 544 break; 545 546 case 0x08: 547 csio->ccb_h.status = CAM_SCSI_BUSY; 548 break; 549 550 case 0xf0: 551 case 0xf4: 552 default: 553 csio->ccb_h.status = CAM_REQ_CMP_ERR; 554 break; 555 } 556 } 557 kfree(ap, M_DEVBUF); 558 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 559 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " "); 560 xpt_done((union ccb *)csio); 561 amr_releasecmd(ac); 562 } 563 564 /******************************************************************************** 565 * Handle completion of a command submitted via CAM. 566 * Completion for extended cdb 567 */ 568 static void 569 amr_cam_complete_extcdb(struct amr_command *ac) 570 { 571 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data; 572 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private; 573 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr; 574 575 /* XXX note that we're ignoring ac->ac_status - good idea? */ 576 577 debug(1, "status 0x%x scsi_status 0x%x", ac->ac_status, aep->ap_scsi_status); 578 579 /* 580 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks. 581 * 582 * If the configuration provides a mechanism to mark a disk a "not managed", we 583 * could add handling for that to allow disks to be selectively visible. 584 */ 585 586 if ((aep->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) { 587 bzero(csio->data_ptr, csio->dxfer_len); 588 if (aep->ap_scsi_status == 0xf0) { 589 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 590 } else { 591 csio->ccb_h.status = CAM_DEV_NOT_THERE; 592 } 593 } else { 594 595 /* handle passthrough SCSI status */ 596 switch(aep->ap_scsi_status) { 597 case 0: /* completed OK */ 598 csio->ccb_h.status = CAM_REQ_CMP; 599 break; 600 601 case 0x02: 602 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 603 csio->scsi_status = SCSI_STATUS_CHECK_COND; 604 bcopy(aep->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN); 605 csio->sense_len = AMR_MAX_REQ_SENSE_LEN; 606 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 607 break; 608 609 case 0x08: 610 csio->ccb_h.status = CAM_SCSI_BUSY; 611 break; 612 613 case 0xf0: 614 case 0xf4: 615 default: 616 csio->ccb_h.status = CAM_REQ_CMP_ERR; 617 break; 618 } 619 } 620 kfree(aep, M_DEVBUF); 621 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 622 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " "); 623 xpt_done((union ccb *)csio); 624 amr_releasecmd(ac); 625 } 626