Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/twa/tw_osl_cam.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004-07 Applied Micro Circuits Corporation. 5 * Copyright (c) 2004-05 Vinod Kashyap. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD: releng/12.0/sys/dev/twa/tw_osl_cam.c 326255 2017-11-27 14:52:40Z pfg $ 30 */ 31 32 /* 33 * AMCC'S 3ware driver for 9000 series storage controllers. 34 * 35 * Author: Vinod Kashyap 36 * Modifications by: Adam Radford 37 * Modifications by: Manjunath Ranganathaiah 38 */ 39 40 41 /* 42 * FreeBSD CAM related functions. 43 */ 44 45 46 #include <dev/twa/tw_osl_includes.h> 47 48 #include <cam/cam.h> 49 #include <cam/cam_ccb.h> 50 #include <cam/cam_sim.h> 51 #include <cam/cam_xpt_sim.h> 52 #include <cam/cam_debug.h> 53 #include <cam/cam_periph.h> 54 55 #include <cam/scsi/scsi_all.h> 56 #include <cam/scsi/scsi_message.h> 57 58 static TW_VOID twa_action(struct cam_sim *sim, union ccb *ccb); 59 static TW_VOID twa_poll(struct cam_sim *sim); 60 61 static TW_INT32 tw_osli_execute_scsi(struct tw_osli_req_context *req, 62 union ccb *ccb); 63 64 65 66 /* 67 * Function name: tw_osli_cam_attach 68 * Description: Attaches the driver to CAM. 69 * 70 * Input: sc -- ptr to OSL internal ctlr context 71 * Output: None 72 * Return value: 0 -- success 73 * non-zero-- failure 74 */ 75 TW_INT32 76 tw_osli_cam_attach(struct twa_softc *sc) 77 { 78 struct cam_devq *devq; 79 80 tw_osli_dbg_dprintf(3, sc, "entered"); 81 82 /* 83 * Create the device queue for our SIM. 84 */ 85 if ((devq = cam_simq_alloc(TW_OSLI_MAX_NUM_IOS)) == NULL) { 86 tw_osli_printf(sc, "error = %d", 87 TW_CL_SEVERITY_ERROR_STRING, 88 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 89 0x2100, 90 "Failed to create SIM device queue", 91 ENOMEM); 92 return(ENOMEM); 93 } 94 95 /* 96 * Create a SIM entry. Though we can support TW_OSLI_MAX_NUM_REQUESTS 97 * simultaneous requests, we claim to be able to handle only 98 * TW_OSLI_MAX_NUM_IOS (two less), so that we always have a request 99 * packet available to service ioctls and AENs. 100 */ 101 tw_osli_dbg_dprintf(3, sc, "Calling cam_sim_alloc"); 102 sc->sim = cam_sim_alloc(twa_action, twa_poll, "twa", sc, 103 device_get_unit(sc->bus_dev), sc->sim_lock, 104 TW_OSLI_MAX_NUM_IOS, 1, devq); 105 if (sc->sim == NULL) { 106 cam_simq_free(devq); 107 tw_osli_printf(sc, "error = %d", 108 TW_CL_SEVERITY_ERROR_STRING, 109 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 110 0x2101, 111 "Failed to create a SIM entry", 112 ENOMEM); 113 return(ENOMEM); 114 } 115 116 /* 117 * Register the bus. 118 */ 119 tw_osli_dbg_dprintf(3, sc, "Calling xpt_bus_register"); 120 mtx_lock(sc->sim_lock); 121 if (xpt_bus_register(sc->sim, sc->bus_dev, 0) != CAM_SUCCESS) { 122 cam_sim_free(sc->sim, TRUE); 123 sc->sim = NULL; /* so cam_detach will not try to free it */ 124 tw_osli_printf(sc, "error = %d", 125 TW_CL_SEVERITY_ERROR_STRING, 126 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 127 0x2102, 128 "Failed to register the bus", 129 ENXIO); 130 mtx_unlock(sc->sim_lock); 131 return(ENXIO); 132 } 133 134 tw_osli_dbg_dprintf(3, sc, "Calling xpt_create_path"); 135 if (xpt_create_path(&sc->path, NULL, 136 cam_sim_path(sc->sim), 137 CAM_TARGET_WILDCARD, 138 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 139 xpt_bus_deregister(cam_sim_path (sc->sim)); 140 /* Passing TRUE to cam_sim_free will free the devq as well. */ 141 cam_sim_free(sc->sim, TRUE); 142 tw_osli_printf(sc, "error = %d", 143 TW_CL_SEVERITY_ERROR_STRING, 144 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 145 0x2103, 146 "Failed to create path", 147 ENXIO); 148 mtx_unlock(sc->sim_lock); 149 return(ENXIO); 150 } 151 mtx_unlock(sc->sim_lock); 152 153 tw_osli_dbg_dprintf(3, sc, "exiting"); 154 return(0); 155 } 156 157 158 159 /* 160 * Function name: tw_osli_cam_detach 161 * Description: Detaches the driver from CAM. 162 * 163 * Input: sc -- ptr to OSL internal ctlr context 164 * Output: None 165 * Return value: None 166 */ 167 TW_VOID 168 tw_osli_cam_detach(struct twa_softc *sc) 169 { 170 tw_osli_dbg_dprintf(3, sc, "entered"); 171 172 mtx_lock(sc->sim_lock); 173 174 if (sc->path) 175 xpt_free_path(sc->path); 176 if (sc->sim) { 177 xpt_bus_deregister(cam_sim_path(sc->sim)); 178 /* Passing TRUE to cam_sim_free will free the devq as well. */ 179 cam_sim_free(sc->sim, TRUE); 180 } 181 /* It's ok have 1 hold count while destroying the mutex */ 182 mtx_destroy(sc->sim_lock); 183 } 184 185 186 187 /* 188 * Function name: tw_osli_execute_scsi 189 * Description: Build a fw cmd, based on a CAM style ccb, and 190 * send it down. 191 * 192 * Input: req -- ptr to OSL internal request context 193 * ccb -- ptr to CAM style ccb 194 * Output: None 195 * Return value: 0 -- success 196 * non-zero-- failure 197 */ 198 TW_INT32 199 tw_osli_execute_scsi(struct tw_osli_req_context *req, union ccb *ccb) 200 { 201 struct twa_softc *sc = req->ctlr; 202 struct tw_cl_req_packet *req_pkt; 203 struct tw_cl_scsi_req_packet *scsi_req; 204 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 205 struct ccb_scsiio *csio = &(ccb->csio); 206 TW_INT32 error; 207 208 tw_osli_dbg_dprintf(10, sc, "SCSI I/O request 0x%x", 209 csio->cdb_io.cdb_bytes[0]); 210 211 if (ccb_h->target_id >= TW_CL_MAX_NUM_UNITS) { 212 tw_osli_dbg_dprintf(3, sc, "Invalid target. PTL = %x %x %jx", 213 ccb_h->path_id, ccb_h->target_id, 214 (uintmax_t)ccb_h->target_lun); 215 ccb_h->status |= CAM_TID_INVALID; 216 xpt_done(ccb); 217 return(1); 218 } 219 if (ccb_h->target_lun >= TW_CL_MAX_NUM_LUNS) { 220 tw_osli_dbg_dprintf(3, sc, "Invalid lun. PTL = %x %x %jx", 221 ccb_h->path_id, ccb_h->target_id, 222 (uintmax_t)ccb_h->target_lun); 223 ccb_h->status |= CAM_LUN_INVALID; 224 xpt_done(ccb); 225 return(1); 226 } 227 228 if(ccb_h->flags & CAM_CDB_PHYS) { 229 tw_osli_printf(sc, "", 230 TW_CL_SEVERITY_ERROR_STRING, 231 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 232 0x2105, 233 "Physical CDB address!"); 234 ccb_h->status = CAM_REQ_INVALID; 235 xpt_done(ccb); 236 return(1); 237 } 238 239 /* 240 * We are going to work on this request. Mark it as enqueued (though 241 * we don't actually queue it...) 242 */ 243 ccb_h->status |= CAM_SIM_QUEUED; 244 245 if((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 246 if(ccb_h->flags & CAM_DIR_IN) 247 req->flags |= TW_OSLI_REQ_FLAGS_DATA_IN; 248 else 249 req->flags |= TW_OSLI_REQ_FLAGS_DATA_OUT; 250 } 251 252 /* Build the CL understood request packet for SCSI cmds. */ 253 req_pkt = &req->req_pkt; 254 req_pkt->status = 0; 255 req_pkt->tw_osl_callback = tw_osl_complete_io; 256 scsi_req = &(req_pkt->gen_req_pkt.scsi_req); 257 scsi_req->unit = ccb_h->target_id; 258 scsi_req->lun = ccb_h->target_lun; 259 scsi_req->sense_len = 0; 260 scsi_req->sense_data = (TW_UINT8 *)(&csio->sense_data); 261 scsi_req->scsi_status = 0; 262 if(ccb_h->flags & CAM_CDB_POINTER) 263 scsi_req->cdb = csio->cdb_io.cdb_ptr; 264 else 265 scsi_req->cdb = csio->cdb_io.cdb_bytes; 266 scsi_req->cdb_len = csio->cdb_len; 267 268 if (csio->dxfer_len > TW_CL_MAX_IO_SIZE) { 269 tw_osli_printf(sc, "size = %d", 270 TW_CL_SEVERITY_ERROR_STRING, 271 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 272 0x2106, 273 "I/O size too big", 274 csio->dxfer_len); 275 ccb_h->status = CAM_REQ_TOO_BIG; 276 ccb_h->status &= ~CAM_SIM_QUEUED; 277 xpt_done(ccb); 278 return(1); 279 } 280 if ((ccb_h->flags & CAM_DATA_MASK) == CAM_DATA_VADDR) { 281 if ((req->length = csio->dxfer_len) != 0) { 282 req->data = csio->data_ptr; 283 scsi_req->sgl_entries = 1; 284 } 285 } else 286 req->flags |= TW_OSLI_REQ_FLAGS_CCB; 287 req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000); 288 289 /* 290 * twa_map_load_data_callback will fill in the SGL, 291 * and submit the I/O. 292 */ 293 error = tw_osli_map_request(req); 294 if ((error) && (req->flags & TW_OSLI_REQ_FLAGS_FAILED)) { 295 req->deadline = 0; 296 ccb_h->status = CAM_REQ_CMP_ERR; 297 ccb_h->status &= ~CAM_SIM_QUEUED; 298 xpt_done(ccb); 299 } 300 return(error); 301 } 302 303 304 305 /* 306 * Function name: twa_action 307 * Description: Driver entry point for CAM's use. 308 * 309 * Input: sim -- sim corresponding to the ctlr 310 * ccb -- ptr to CAM request 311 * Output: None 312 * Return value: None 313 */ 314 TW_VOID 315 twa_action(struct cam_sim *sim, union ccb *ccb) 316 { 317 struct twa_softc *sc = (struct twa_softc *)cam_sim_softc(sim); 318 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 319 320 switch (ccb_h->func_code) { 321 case XPT_SCSI_IO: /* SCSI I/O */ 322 { 323 struct tw_osli_req_context *req; 324 325 req = tw_osli_get_request(sc); 326 if (req == NULL) { 327 tw_osli_dbg_dprintf(2, sc, "Cannot get request pkt."); 328 /* 329 * Freeze the simq to maintain ccb ordering. The next 330 * ccb that gets completed will unfreeze the simq. 331 */ 332 ccb_h->status &= ~CAM_SIM_QUEUED; 333 ccb_h->status |= CAM_REQUEUE_REQ; 334 xpt_done(ccb); 335 break; 336 } 337 338 if ((tw_cl_is_reset_needed(&(req->ctlr->ctlr_handle)))) { 339 ccb_h->status &= ~CAM_SIM_QUEUED; 340 ccb_h->status |= CAM_REQUEUE_REQ; 341 xpt_done(ccb); 342 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q); 343 break; 344 } 345 346 req->req_handle.osl_req_ctxt = req; 347 req->req_handle.is_io = TW_CL_TRUE; 348 req->orig_req = ccb; 349 if (tw_osli_execute_scsi(req, ccb)) 350 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q); 351 break; 352 } 353 354 case XPT_ABORT: 355 tw_osli_dbg_dprintf(2, sc, "Abort request."); 356 ccb_h->status = CAM_UA_ABORT; 357 xpt_done(ccb); 358 break; 359 360 case XPT_RESET_BUS: 361 tw_cl_create_event(&(sc->ctlr_handle), TW_CL_FALSE, 362 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 363 0x2108, 0x3, TW_CL_SEVERITY_INFO_STRING, 364 "Received Reset Bus request from CAM", 365 " "); 366 367 tw_cl_set_reset_needed(&(sc->ctlr_handle)); 368 ccb_h->status = CAM_REQ_CMP; 369 xpt_done(ccb); 370 break; 371 372 case XPT_SET_TRAN_SETTINGS: 373 tw_osli_dbg_dprintf(3, sc, "XPT_SET_TRAN_SETTINGS"); 374 375 /* 376 * This command is not supported, since it's very specific 377 * to SCSI, and we are doing ATA. 378 */ 379 ccb_h->status = CAM_FUNC_NOTAVAIL; 380 xpt_done(ccb); 381 break; 382 383 case XPT_GET_TRAN_SETTINGS: 384 { 385 struct ccb_trans_settings *cts = &ccb->cts; 386 struct ccb_trans_settings_scsi *scsi = 387 &cts->proto_specific.scsi; 388 struct ccb_trans_settings_spi *spi = 389 &cts->xport_specific.spi; 390 391 cts->protocol = PROTO_SCSI; 392 cts->protocol_version = SCSI_REV_2; 393 cts->transport = XPORT_SPI; 394 cts->transport_version = 2; 395 396 spi->valid = CTS_SPI_VALID_DISC; 397 spi->flags = CTS_SPI_FLAGS_DISC_ENB; 398 scsi->valid = CTS_SCSI_VALID_TQ; 399 scsi->flags = CTS_SCSI_FLAGS_TAG_ENB; 400 tw_osli_dbg_dprintf(3, sc, "XPT_GET_TRAN_SETTINGS"); 401 ccb_h->status = CAM_REQ_CMP; 402 xpt_done(ccb); 403 break; 404 } 405 406 case XPT_CALC_GEOMETRY: 407 tw_osli_dbg_dprintf(3, sc, "XPT_CALC_GEOMETRY"); 408 cam_calc_geometry(&ccb->ccg, 1/* extended */); 409 xpt_done(ccb); 410 break; 411 412 case XPT_PATH_INQ: /* Path inquiry -- get twa properties */ 413 { 414 struct ccb_pathinq *path_inq = &ccb->cpi; 415 416 tw_osli_dbg_dprintf(3, sc, "XPT_PATH_INQ request"); 417 418 path_inq->version_num = 1; 419 path_inq->hba_inquiry = 0; 420 path_inq->target_sprt = 0; 421 path_inq->hba_misc = 0; 422 path_inq->hba_eng_cnt = 0; 423 path_inq->max_target = TW_CL_MAX_NUM_UNITS; 424 path_inq->max_lun = TW_CL_MAX_NUM_LUNS - 1; 425 path_inq->unit_number = cam_sim_unit(sim); 426 path_inq->bus_id = cam_sim_bus(sim); 427 path_inq->initiator_id = TW_CL_MAX_NUM_UNITS; 428 path_inq->base_transfer_speed = 100000; 429 strlcpy(path_inq->sim_vid, "FreeBSD", SIM_IDLEN); 430 strlcpy(path_inq->hba_vid, "3ware", HBA_IDLEN); 431 strlcpy(path_inq->dev_name, cam_sim_name(sim), DEV_IDLEN); 432 path_inq->transport = XPORT_SPI; 433 path_inq->transport_version = 2; 434 path_inq->protocol = PROTO_SCSI; 435 path_inq->protocol_version = SCSI_REV_2; 436 path_inq->maxio = TW_CL_MAX_IO_SIZE; 437 ccb_h->status = CAM_REQ_CMP; 438 xpt_done(ccb); 439 break; 440 } 441 442 default: 443 tw_osli_dbg_dprintf(3, sc, "func_code = %x", ccb_h->func_code); 444 ccb_h->status = CAM_REQ_INVALID; 445 xpt_done(ccb); 446 break; 447 } 448 } 449 450 451 452 /* 453 * Function name: twa_poll 454 * Description: Driver entry point called when interrupts are not 455 * available. 456 * 457 * Input: sim -- sim corresponding to the controller 458 * Output: None 459 * Return value: None 460 */ 461 TW_VOID 462 twa_poll(struct cam_sim *sim) 463 { 464 struct twa_softc *sc = (struct twa_softc *)(cam_sim_softc(sim)); 465 466 tw_osli_dbg_dprintf(3, sc, "entering; sc = %p", sc); 467 tw_cl_interrupt(&(sc->ctlr_handle)); 468 tw_osli_dbg_dprintf(3, sc, "exiting; sc = %p", sc); 469 } 470 471 472 473 /* 474 * Function name: tw_osli_request_bus_scan 475 * Description: Requests CAM for a scan of the bus. 476 * 477 * Input: sc -- ptr to per ctlr structure 478 * Output: None 479 * Return value: 0 -- success 480 * non-zero-- failure 481 */ 482 TW_INT32 483 tw_osli_request_bus_scan(struct twa_softc *sc) 484 { 485 union ccb *ccb; 486 487 tw_osli_dbg_dprintf(3, sc, "entering"); 488 489 /* If we get here before sc->sim is initialized, return an error. */ 490 if (!(sc->sim)) 491 return(ENXIO); 492 if ((ccb = xpt_alloc_ccb()) == NULL) 493 return(ENOMEM); 494 mtx_lock(sc->sim_lock); 495 if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(sc->sim), 496 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 497 xpt_free_ccb(ccb); 498 mtx_unlock(sc->sim_lock); 499 return(EIO); 500 } 501 502 xpt_rescan(ccb); 503 mtx_unlock(sc->sim_lock); 504 return(0); 505 } 506 507 508 509 /* 510 * Function name: tw_osli_disallow_new_requests 511 * Description: Calls the appropriate CAM function, so as to freeze 512 * the flow of new requests from CAM to this controller. 513 * 514 * Input: sc -- ptr to OSL internal ctlr context 515 * req_handle -- ptr to request handle sent by OSL. 516 * Output: None 517 * Return value: None 518 */ 519 TW_VOID 520 tw_osli_disallow_new_requests(struct twa_softc *sc, 521 struct tw_cl_req_handle *req_handle) 522 { 523 /* Only freeze/release the simq for IOs */ 524 if (req_handle->is_io) { 525 struct tw_osli_req_context *req = req_handle->osl_req_ctxt; 526 union ccb *ccb = (union ccb *)(req->orig_req); 527 528 xpt_freeze_simq(sc->sim, 1); 529 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 530 } 531 } 532 533 534 535 /* 536 * Function name: tw_osl_timeout 537 * Description: Call to timeout(). 538 * 539 * Input: req_handle -- ptr to request handle sent by OSL. 540 * Output: None 541 * Return value: None 542 */ 543 TW_VOID 544 tw_osl_timeout(struct tw_cl_req_handle *req_handle) 545 { 546 struct tw_osli_req_context *req = req_handle->osl_req_ctxt; 547 union ccb *ccb = (union ccb *)(req->orig_req); 548 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 549 550 req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000); 551 } 552 553 554 555 /* 556 * Function name: tw_osl_untimeout 557 * Description: Inverse of call to timeout(). 558 * 559 * Input: req_handle -- ptr to request handle sent by OSL. 560 * Output: None 561 * Return value: None 562 */ 563 TW_VOID 564 tw_osl_untimeout(struct tw_cl_req_handle *req_handle) 565 { 566 struct tw_osli_req_context *req = req_handle->osl_req_ctxt; 567 568 req->deadline = 0; 569 } 570 571 572 573 /* 574 * Function name: tw_osl_scan_bus 575 * Description: CL calls this function to request for a bus scan. 576 * 577 * Input: ctlr_handle -- ptr to controller handle 578 * Output: None 579 * Return value: None 580 */ 581 TW_VOID 582 tw_osl_scan_bus(struct tw_cl_ctlr_handle *ctlr_handle) 583 { 584 struct twa_softc *sc = ctlr_handle->osl_ctlr_ctxt; 585 TW_INT32 error; 586 587 if ((error = tw_osli_request_bus_scan(sc))) 588 tw_osli_printf(sc, "error = %d", 589 TW_CL_SEVERITY_ERROR_STRING, 590 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 591 0x2109, 592 "Bus scan request to CAM failed", 593 error); 594 } 595 596 597 598 /* 599 * Function name: tw_osl_complete_io 600 * Description: Called to complete CAM scsi requests. 601 * 602 * Input: req_handle -- ptr to request handle 603 * Output: None 604 * Return value: None 605 */ 606 TW_VOID 607 tw_osl_complete_io(struct tw_cl_req_handle *req_handle) 608 { 609 struct tw_osli_req_context *req = req_handle->osl_req_ctxt; 610 struct tw_cl_req_packet *req_pkt = 611 (struct tw_cl_req_packet *)(&req->req_pkt); 612 struct tw_cl_scsi_req_packet *scsi_req; 613 struct twa_softc *sc = req->ctlr; 614 union ccb *ccb = (union ccb *)(req->orig_req); 615 616 tw_osli_dbg_dprintf(10, sc, "entering"); 617 618 if (req->state != TW_OSLI_REQ_STATE_BUSY) 619 tw_osli_printf(sc, "request = %p, status = %d", 620 TW_CL_SEVERITY_ERROR_STRING, 621 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 622 0x210A, 623 "Unposted command completed!!", 624 req, req->state); 625 626 /* 627 * Remove request from the busy queue. Just mark it complete. 628 * There's no need to move it into the complete queue as we are 629 * going to be done with it right now. 630 */ 631 req->state = TW_OSLI_REQ_STATE_COMPLETE; 632 tw_osli_req_q_remove_item(req, TW_OSLI_BUSY_Q); 633 634 tw_osli_unmap_request(req); 635 636 req->deadline = 0; 637 if (req->error_code) { 638 /* This request never got submitted to the firmware. */ 639 if (req->error_code == EBUSY) { 640 /* 641 * Cmd queue is full, or the Common Layer is out of 642 * resources. The simq will already have been frozen. 643 * When this ccb gets completed will unfreeze the simq. 644 */ 645 ccb->ccb_h.status |= CAM_REQUEUE_REQ; 646 } 647 else if (req->error_code == EFBIG) 648 ccb->ccb_h.status = CAM_REQ_TOO_BIG; 649 else 650 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 651 } else { 652 scsi_req = &(req_pkt->gen_req_pkt.scsi_req); 653 if (req_pkt->status == TW_CL_ERR_REQ_SUCCESS) 654 ccb->ccb_h.status = CAM_REQ_CMP; 655 else { 656 if (req_pkt->status & TW_CL_ERR_REQ_INVALID_TARGET) 657 ccb->ccb_h.status |= CAM_SEL_TIMEOUT; 658 else if (req_pkt->status & TW_CL_ERR_REQ_INVALID_LUN) 659 ccb->ccb_h.status |= CAM_DEV_NOT_THERE; 660 else if (req_pkt->status & TW_CL_ERR_REQ_SCSI_ERROR) 661 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 662 else if (req_pkt->status & TW_CL_ERR_REQ_BUS_RESET) 663 ccb->ccb_h.status |= (CAM_REQUEUE_REQ | CAM_SCSI_BUS_RESET); 664 /* 665 * If none of the above errors occurred, simply 666 * mark completion error. 667 */ 668 if (ccb->ccb_h.status == 0) 669 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 670 671 if (req_pkt->status & TW_CL_ERR_REQ_AUTO_SENSE_VALID) { 672 ccb->csio.sense_len = scsi_req->sense_len; 673 ccb->ccb_h.status |= CAM_AUTOSNS_VALID; 674 } 675 } 676 677 ccb->csio.scsi_status = scsi_req->scsi_status; 678 } 679 680 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 681 mtx_lock(sc->sim_lock); 682 xpt_done(ccb); 683 mtx_unlock(sc->sim_lock); 684 if (! req->error_code) 685 /* twa_action will free the request otherwise */ 686 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q); 687 } 688
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