1/* 2 * Copyright (c) 2004-07 Applied Micro Circuits Corporation. 3 * Copyright (c) 2004-05 Vinod Kashyap. 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: --- 10 unchanged lines hidden (view full) --- 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 * $FreeBSD: head/sys/dev/twa/tw_osl_cam.c 212008 2010-08-30 19:15:04Z delphij $ |
28 */ 29 30/* 31 * AMCC'S 3ware driver for 9000 series storage controllers. 32 * 33 * Author: Vinod Kashyap 34 * Modifications by: Adam Radford 35 * Modifications by: Manjunath Ranganathaiah --- 14 unchanged lines hidden (view full) --- 50#include <cam/cam_debug.h> 51#include <cam/cam_periph.h> 52 53#include <cam/scsi/scsi_all.h> 54#include <cam/scsi/scsi_message.h> 55 56static TW_VOID twa_action(struct cam_sim *sim, union ccb *ccb); 57static TW_VOID twa_poll(struct cam_sim *sim); |
58 59static TW_INT32 tw_osli_execute_scsi(struct tw_osli_req_context *req, 60 union ccb *ccb); 61 62 63 64/* 65 * Function name: tw_osli_cam_attach --- 9 unchanged lines hidden (view full) --- 75{ 76 struct cam_devq *devq; 77 78 tw_osli_dbg_dprintf(3, sc, "entered"); 79 80 /* 81 * Create the device queue for our SIM. 82 */ |
83 if ((devq = cam_simq_alloc(TW_OSLI_MAX_NUM_IOS)) == NULL) { |
84 tw_osli_printf(sc, "error = %d", 85 TW_CL_SEVERITY_ERROR_STRING, 86 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 87 0x2100, 88 "Failed to create SIM device queue", 89 ENOMEM); 90 return(ENOMEM); 91 } --- 177 unchanged lines hidden (view full) --- 269 if (csio->dxfer_len > TW_CL_MAX_IO_SIZE) { 270 tw_osli_printf(sc, "size = %d", 271 TW_CL_SEVERITY_ERROR_STRING, 272 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 273 0x2106, 274 "I/O size too big", 275 csio->dxfer_len); 276 ccb_h->status = CAM_REQ_TOO_BIG; |
277 ccb_h->status &= ~CAM_SIM_QUEUED; |
278 xpt_done(ccb); 279 return(1); 280 } 281 282 if ((req->length = csio->dxfer_len)) { 283 req->data = csio->data_ptr; 284 scsi_req->sgl_entries = 1; 285 } 286 } else { 287 tw_osli_printf(sc, "", 288 TW_CL_SEVERITY_ERROR_STRING, 289 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 290 0x2107, 291 "XPT_SCSI_IO: Got SGList"); 292 ccb_h->status = CAM_REQ_INVALID; |
293 ccb_h->status &= ~CAM_SIM_QUEUED; |
294 xpt_done(ccb); 295 return(1); 296 } 297 } else { 298 /* Data addresses are physical. */ 299 tw_osli_printf(sc, "", 300 TW_CL_SEVERITY_ERROR_STRING, 301 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 302 0x2108, 303 "XPT_SCSI_IO: Physical data addresses"); 304 ccb_h->status = CAM_REQ_INVALID; 305 ccb_h->status &= ~CAM_SIM_QUEUED; 306 xpt_done(ccb); 307 return(1); 308 } 309 |
310 req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000); 311 312 |
313 /* 314 * twa_map_load_data_callback will fill in the SGL, 315 * and submit the I/O. 316 */ 317 error = tw_osli_map_request(req); |
318 if ((error) && (req->flags & TW_OSLI_REQ_FLAGS_FAILED)) { 319 req->deadline = 0; 320 ccb_h->status = CAM_REQ_CMP_ERR; 321 ccb_h->status &= ~CAM_SIM_QUEUED; 322 xpt_done(ccb); 323 } |
324 return(error); 325} 326 327 328 329/* 330 * Function name: twa_action 331 * Description: Driver entry point for CAM's use. --- 16 unchanged lines hidden (view full) --- 348 349 req = tw_osli_get_request(sc); 350 if (req == NULL) { 351 tw_osli_dbg_dprintf(2, sc, "Cannot get request pkt."); 352 /* 353 * Freeze the simq to maintain ccb ordering. The next 354 * ccb that gets completed will unfreeze the simq. 355 */ |
356 ccb_h->status &= ~CAM_SIM_QUEUED; |
357 ccb_h->status |= CAM_REQUEUE_REQ; 358 xpt_done(ccb); 359 break; 360 } |
361 362 if ((tw_cl_is_reset_needed(&(req->ctlr->ctlr_handle)))) { 363 ccb_h->status &= ~CAM_SIM_QUEUED; 364 ccb_h->status |= CAM_REQUEUE_REQ; 365 xpt_done(ccb); 366 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q); 367 break; 368 } 369 |
370 req->req_handle.osl_req_ctxt = req; 371 req->req_handle.is_io = TW_CL_TRUE; 372 req->orig_req = ccb; 373 if (tw_osli_execute_scsi(req, ccb)) 374 tw_osli_req_q_insert_tail(req, TW_OSLI_FREE_Q); 375 break; 376 } 377 378 case XPT_ABORT: 379 tw_osli_dbg_dprintf(2, sc, "Abort request."); 380 ccb_h->status = CAM_UA_ABORT; 381 xpt_done(ccb); 382 break; 383 384 case XPT_RESET_BUS: |
385 tw_cl_create_event(&(sc->ctlr_handle), TW_CL_FALSE, |
386 TW_CL_MESSAGE_SOURCE_FREEBSD_DRIVER, 387 0x2108, 0x3, TW_CL_SEVERITY_INFO_STRING, 388 "Received Reset Bus request from CAM", 389 " "); 390 |
391 tw_cl_set_reset_needed(&(sc->ctlr_handle)); 392 ccb_h->status = CAM_REQ_CMP; |
393 xpt_done(ccb); 394 break; 395 396 case XPT_SET_TRAN_SETTINGS: 397 tw_osli_dbg_dprintf(3, sc, "XPT_SET_TRAN_SETTINGS"); 398 399 /* 400 * This command is not supported, since it's very specific --- 51 unchanged lines hidden (view full) --- 452 path_inq->base_transfer_speed = 100000; 453 strncpy(path_inq->sim_vid, "FreeBSD", SIM_IDLEN); 454 strncpy(path_inq->hba_vid, "3ware", HBA_IDLEN); 455 strncpy(path_inq->dev_name, cam_sim_name(sim), DEV_IDLEN); 456 path_inq->transport = XPORT_SPI; 457 path_inq->transport_version = 2; 458 path_inq->protocol = PROTO_SCSI; 459 path_inq->protocol_version = SCSI_REV_2; |
460 path_inq->maxio = TW_CL_MAX_IO_SIZE; |
461 ccb_h->status = CAM_REQ_CMP; 462 xpt_done(ccb); 463 break; 464 } 465 466 default: 467 tw_osli_dbg_dprintf(3, sc, "func_code = %x", ccb_h->func_code); 468 ccb_h->status = CAM_REQ_INVALID; --- 21 unchanged lines hidden (view full) --- 490 tw_osli_dbg_dprintf(3, sc, "entering; sc = %p", sc); 491 tw_cl_interrupt(&(sc->ctlr_handle)); 492 tw_osli_dbg_dprintf(3, sc, "exiting; sc = %p", sc); 493} 494 495 496 497/* |
498 * Function name: tw_osli_request_bus_scan 499 * Description: Requests CAM for a scan of the bus. 500 * 501 * Input: sc -- ptr to per ctlr structure 502 * Output: None 503 * Return value: 0 -- success 504 * non-zero-- failure 505 */ --- 46 unchanged lines hidden (view full) --- 552 xpt_freeze_simq(sc->sim, 1); 553 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 554 } 555} 556 557 558 559/* |
560 * Function name: tw_osl_timeout 561 * Description: Call to timeout(). |
562 * |
563 * Input: req_handle -- ptr to request handle sent by OSL. |
564 * Output: None 565 * Return value: None 566 */ 567TW_VOID |
568tw_osl_timeout(struct tw_cl_req_handle *req_handle) |
569{ |
570 struct tw_osli_req_context *req = req_handle->osl_req_ctxt; 571 union ccb *ccb = (union ccb *)(req->orig_req); 572 struct ccb_hdr *ccb_h = &(ccb->ccb_h); 573 574 req->deadline = tw_osl_get_local_time() + (ccb_h->timeout / 1000); |
575} 576 577 578 579/* |
580 * Function name: tw_osl_untimeout 581 * Description: Inverse of call to timeout(). 582 * 583 * Input: req_handle -- ptr to request handle sent by OSL. 584 * Output: None 585 * Return value: None 586 */ 587TW_VOID 588tw_osl_untimeout(struct tw_cl_req_handle *req_handle) 589{ 590 struct tw_osli_req_context *req = req_handle->osl_req_ctxt; 591 592 req->deadline = 0; 593} 594 595 596 597/* |
598 * Function name: tw_osl_scan_bus 599 * Description: CL calls this function to request for a bus scan. 600 * 601 * Input: ctlr_handle -- ptr to controller handle 602 * Output: None 603 * Return value: None 604 */ 605TW_VOID --- 46 unchanged lines hidden (view full) --- 652 * There's no need to move it into the complete queue as we are 653 * going to be done with it right now. 654 */ 655 req->state = TW_OSLI_REQ_STATE_COMPLETE; 656 tw_osli_req_q_remove_item(req, TW_OSLI_BUSY_Q); 657 658 tw_osli_unmap_request(req); 659 |
660 req->deadline = 0; |
661 if (req->error_code) { 662 /* This request never got submitted to the firmware. */ 663 if (req->error_code == EBUSY) { 664 /* 665 * Cmd queue is full, or the Common Layer is out of 666 * resources. The simq will already have been frozen. 667 * When this ccb gets completed will unfreeze the simq. 668 */ --- 10 unchanged lines hidden (view full) --- 679 else { 680 if (req_pkt->status & TW_CL_ERR_REQ_INVALID_TARGET) 681 ccb->ccb_h.status |= CAM_TID_INVALID; 682 else if (req_pkt->status & TW_CL_ERR_REQ_INVALID_LUN) 683 ccb->ccb_h.status |= CAM_LUN_INVALID; 684 else if (req_pkt->status & TW_CL_ERR_REQ_SCSI_ERROR) 685 ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 686 else if (req_pkt->status & TW_CL_ERR_REQ_BUS_RESET) |
687 ccb->ccb_h.status |= (CAM_REQUEUE_REQ | CAM_SCSI_BUS_RESET); |
688 /* 689 * If none of the above errors occurred, simply 690 * mark completion error. 691 */ 692 if (ccb->ccb_h.status == 0) 693 ccb->ccb_h.status = CAM_REQ_CMP_ERR; 694 695 if (req_pkt->status & TW_CL_ERR_REQ_AUTO_SENSE_VALID) { --- 17 unchanged lines hidden --- |