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 1.9 2007/12/23 07:00:56 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 #ifdef CAM_NEW_TRAN_CODE 303 cpi->transport = XPORT_SPI; 304 cpi->transport_version = 2; 305 cpi->protocol = PROTO_SCSI; 306 cpi->protocol_version = SCSI_REV_2; 307 #endif 308 cpi->ccb_h.status = CAM_REQ_CMP; 309 310 break; 311 } 312 313 case XPT_RESET_BUS: 314 { 315 struct ccb_pathinq *cpi = & ccb->cpi; 316 317 debug(1, "XPT_RESET_BUS"); 318 cpi->ccb_h.status = CAM_REQ_CMP; 319 break; 320 } 321 322 case XPT_RESET_DEV: 323 { 324 debug(1, "XPT_RESET_DEV"); 325 ccb->ccb_h.status = CAM_REQ_CMP; 326 break; 327 } 328 329 case XPT_GET_TRAN_SETTINGS: 330 { 331 struct ccb_trans_settings *cts = &(ccb->cts); 332 333 debug(3, "XPT_GET_TRAN_SETTINGS"); 334 335 #ifdef CAM_NEW_TRAN_CODE 336 struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi; 337 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 338 339 cts->protocol = PROTO_SCSI; 340 cts->protocol_version = SCSI_REV_2; 341 cts->transport = XPORT_SPI; 342 cts->transport_version = 2; 343 344 if (cts->type == CTS_TYPE_USER_SETTINGS) { 345 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 346 break; 347 } 348 349 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 350 spi->bus_width = MSG_EXT_WDTR_BUS_32_BIT; 351 spi->sync_period = 6; /* 40MHz how wide is this bus? */ 352 spi->sync_offset = 31; /* How to extract this from board? */ 353 354 spi->valid = CTS_SPI_VALID_SYNC_RATE 355 | CTS_SPI_VALID_SYNC_OFFSET 356 | CTS_SPI_VALID_BUS_WIDTH 357 | CTS_SPI_VALID_DISC; 358 scsi->valid = CTS_SCSI_VALID_TQ; 359 #else 360 if ((cts->flags & CCB_TRANS_USER_SETTINGS) == 0) { 361 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 362 break; 363 } 364 365 cts->flags = CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB; 366 cts->bus_width = MSG_EXT_WDTR_BUS_32_BIT; 367 cts->sync_period = 6; /* 40MHz how wide is this bus? */ 368 cts->sync_offset = 31; /* How to extract this from board? */ 369 370 cts->valid = CCB_TRANS_SYNC_RATE_VALID 371 | CCB_TRANS_SYNC_OFFSET_VALID 372 | CCB_TRANS_BUS_WIDTH_VALID 373 | CCB_TRANS_DISC_VALID 374 | CCB_TRANS_TQ_VALID; 375 #endif 376 ccb->ccb_h.status = CAM_REQ_CMP; 377 break; 378 } 379 380 case XPT_SET_TRAN_SETTINGS: 381 debug(3, "XPT_SET_TRAN_SETTINGS"); 382 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL; 383 break; 384 385 386 /* 387 * Reject anything else as unsupported. 388 */ 389 default: 390 /* we can't do this */ 391 ccb->ccb_h.status = CAM_REQ_INVALID; 392 break; 393 } 394 xpt_done(ccb); 395 } 396 397 /******************************************************************************** 398 * Convert a CAM CCB off the top of the CCB queue to a passthrough SCSI command. 399 */ 400 int 401 amr_cam_command(struct amr_softc *sc, struct amr_command **acp) 402 { 403 struct amr_command *ac; 404 struct amr_passthrough *ap; 405 struct amr_ext_passthrough *aep; 406 struct ccb_scsiio *csio; 407 int bus, target, error; 408 409 error = 0; 410 ac = NULL; 411 ap = NULL; 412 aep = NULL; 413 414 /* check to see if there is a ccb for us to work with */ 415 if ((csio = (struct ccb_scsiio *)amr_dequeue_ccb(sc)) == NULL) 416 goto out; 417 418 /* get bus/target, XXX validate against protected devices? */ 419 bus = csio->ccb_h.sim_priv.entries[0].field; 420 target = csio->ccb_h.target_id; 421 422 /* 423 * Build a passthrough command. 424 */ 425 426 /* construct passthrough */ 427 if (sc->support_ext_cdb ) { 428 aep = kmalloc(sizeof(*aep), M_DEVBUF, M_INTWAIT | M_ZERO); 429 aep->ap_timeout = 2; 430 aep->ap_ars = 1; 431 aep->ap_request_sense_length = 14; 432 aep->ap_islogical = 0; 433 aep->ap_channel = bus; 434 aep->ap_scsi_id = target; 435 aep->ap_logical_drive_no = csio->ccb_h.target_lun; 436 aep->ap_cdb_length = csio->cdb_len; 437 aep->ap_data_transfer_length = csio->dxfer_len; 438 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 439 bcopy(csio->cdb_io.cdb_ptr, aep->ap_cdb, csio->cdb_len); 440 } else { 441 bcopy(csio->cdb_io.cdb_bytes, aep->ap_cdb, csio->cdb_len); 442 } 443 /* we leave the data s/g list and s/g count to the map routine later */ 444 445 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", aep->ap_cdb[0], aep->ap_cdb_length, csio->dxfer_len, 446 aep->ap_channel, aep->ap_scsi_id, aep->ap_logical_drive_no); 447 448 } else { 449 ap = kmalloc(sizeof(*ap), M_DEVBUF, M_INTWAIT | M_ZERO); 450 ap->ap_timeout = 0; 451 ap->ap_ars = 1; 452 ap->ap_request_sense_length = 14; 453 ap->ap_islogical = 0; 454 ap->ap_channel = bus; 455 ap->ap_scsi_id = target; 456 ap->ap_logical_drive_no = csio->ccb_h.target_lun; 457 ap->ap_cdb_length = csio->cdb_len; 458 ap->ap_data_transfer_length = csio->dxfer_len; 459 if (csio->ccb_h.flags & CAM_CDB_POINTER) { 460 bcopy(csio->cdb_io.cdb_ptr, ap->ap_cdb, csio->cdb_len); 461 } else { 462 bcopy(csio->cdb_io.cdb_bytes, ap->ap_cdb, csio->cdb_len); 463 } 464 /* we leave the data s/g list and s/g count to the map routine later */ 465 466 debug(2, " COMMAND %x/%d+%d to %d:%d:%d", ap->ap_cdb[0], ap->ap_cdb_length, csio->dxfer_len, 467 ap->ap_channel, ap->ap_scsi_id, ap->ap_logical_drive_no); 468 } 469 470 /* construct command */ 471 if ((ac = amr_alloccmd(sc)) == NULL) { 472 error = ENOMEM; 473 goto out; 474 } 475 476 ac->ac_flags |= AMR_CMD_DATAOUT; 477 478 ac->ac_ccb_data = csio->data_ptr; 479 ac->ac_ccb_length = csio->dxfer_len; 480 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 481 ac->ac_flags |= AMR_CMD_CCB_DATAIN; 482 if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 483 ac->ac_flags |= AMR_CMD_CCB_DATAOUT; 484 485 ac->ac_private = csio; 486 if ( sc->support_ext_cdb ) { 487 ac->ac_data = aep; 488 ac->ac_length = sizeof(*aep); 489 ac->ac_complete = amr_cam_complete_extcdb; 490 ac->ac_mailbox.mb_command = AMR_CMD_EXTPASS; 491 } else { 492 ac->ac_data = ap; 493 ac->ac_length = sizeof(*ap); 494 ac->ac_complete = amr_cam_complete; 495 ac->ac_mailbox.mb_command = AMR_CMD_PASS; 496 } 497 498 out: 499 if (error != 0) { 500 if (ac != NULL) 501 amr_releasecmd(ac); 502 if (ap != NULL) 503 kfree(ap, M_DEVBUF); 504 if (aep != NULL) 505 kfree(aep, M_DEVBUF); 506 if (csio != NULL) /* put it back and try again later */ 507 amr_requeue_ccb(sc, (union ccb *)csio); 508 } 509 *acp = ac; 510 return(error); 511 } 512 513 /******************************************************************************** 514 * Check for interrupt status 515 */ 516 static void 517 amr_cam_poll(struct cam_sim *sim) 518 { 519 amr_done(cam_sim_softc(sim)); 520 } 521 522 /******************************************************************************** 523 * Handle completion of a command submitted via CAM. 524 */ 525 static void 526 amr_cam_complete(struct amr_command *ac) 527 { 528 struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data; 529 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private; 530 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr; 531 532 /* XXX note that we're ignoring ac->ac_status - good idea? */ 533 534 debug(1, "status 0x%x scsi_status 0x%x", ac->ac_status, ap->ap_scsi_status); 535 536 /* 537 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks. 538 * 539 * If the configuration provides a mechanism to mark a disk a "not managed", we 540 * could add handling for that to allow disks to be selectively visible. 541 */ 542 543 if ((ap->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) { 544 bzero(csio->data_ptr, csio->dxfer_len); 545 if (ap->ap_scsi_status == 0xf0) { 546 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 547 } else { 548 csio->ccb_h.status = CAM_DEV_NOT_THERE; 549 } 550 } else { 551 552 /* handle passthrough SCSI status */ 553 switch(ap->ap_scsi_status) { 554 case 0: /* completed OK */ 555 csio->ccb_h.status = CAM_REQ_CMP; 556 break; 557 558 case 0x02: 559 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 560 csio->scsi_status = SCSI_STATUS_CHECK_COND; 561 bcopy(ap->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN); 562 csio->sense_len = AMR_MAX_REQ_SENSE_LEN; 563 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 564 break; 565 566 case 0x08: 567 csio->ccb_h.status = CAM_SCSI_BUSY; 568 break; 569 570 case 0xf0: 571 case 0xf4: 572 default: 573 csio->ccb_h.status = CAM_REQ_CMP_ERR; 574 break; 575 } 576 } 577 kfree(ap, M_DEVBUF); 578 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 579 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " "); 580 xpt_done((union ccb *)csio); 581 amr_releasecmd(ac); 582 } 583 584 /******************************************************************************** 585 * Handle completion of a command submitted via CAM. 586 * Completion for extended cdb 587 */ 588 static void 589 amr_cam_complete_extcdb(struct amr_command *ac) 590 { 591 struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data; 592 struct ccb_scsiio *csio = (struct ccb_scsiio *)ac->ac_private; 593 struct scsi_inquiry_data *inq = (struct scsi_inquiry_data *)csio->data_ptr; 594 595 /* XXX note that we're ignoring ac->ac_status - good idea? */ 596 597 debug(1, "status 0x%x scsi_status 0x%x", ac->ac_status, aep->ap_scsi_status); 598 599 /* 600 * Hide disks from CAM so that they're not picked up and treated as 'normal' disks. 601 * 602 * If the configuration provides a mechanism to mark a disk a "not managed", we 603 * could add handling for that to allow disks to be selectively visible. 604 */ 605 606 if ((aep->ap_cdb[0] == INQUIRY) && (SID_TYPE(inq) == T_DIRECT)) { 607 bzero(csio->data_ptr, csio->dxfer_len); 608 if (aep->ap_scsi_status == 0xf0) { 609 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 610 } else { 611 csio->ccb_h.status = CAM_DEV_NOT_THERE; 612 } 613 } else { 614 615 /* handle passthrough SCSI status */ 616 switch(aep->ap_scsi_status) { 617 case 0: /* completed OK */ 618 csio->ccb_h.status = CAM_REQ_CMP; 619 break; 620 621 case 0x02: 622 csio->ccb_h.status = CAM_SCSI_STATUS_ERROR; 623 csio->scsi_status = SCSI_STATUS_CHECK_COND; 624 bcopy(aep->ap_request_sense_area, &csio->sense_data, AMR_MAX_REQ_SENSE_LEN); 625 csio->sense_len = AMR_MAX_REQ_SENSE_LEN; 626 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 627 break; 628 629 case 0x08: 630 csio->ccb_h.status = CAM_SCSI_BUSY; 631 break; 632 633 case 0xf0: 634 case 0xf4: 635 default: 636 csio->ccb_h.status = CAM_REQ_CMP_ERR; 637 break; 638 } 639 } 640 kfree(aep, M_DEVBUF); 641 if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) 642 debug(2, "%*D\n", imin(csio->dxfer_len, 16), csio->data_ptr, " "); 643 xpt_done((union ccb *)csio); 644 amr_releasecmd(ac); 645 } 646