aha.c revision 163816
1/* 2 * Generic register and struct definitions for the Adaptech 154x/164x 3 * SCSI host adapters. Product specific probe and attach routines can 4 * be found in: 5 * aha 1542A/1542B/1542C/1542CF/1542CP aha_isa.c 6 * aha 1640 aha_mca.c 7 */ 8/*- 9 * Copyright (c) 1998 M. Warner Losh. 10 * All Rights Reserved. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Derived from bt.c written by: 34 * 35 * Copyright (c) 1998 Justin T. Gibbs. 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions, and the following disclaimer, 43 * without modification, immediately at the beginning of the file. 44 * 2. The name of the author may not be used to endorse or promote products 45 * derived from this software without specific prior written permission. 46 * 47 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 48 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 49 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 50 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 51 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 52 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 53 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 54 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 55 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 56 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 57 * SUCH DAMAGE. 58 */ 59 60#include <sys/cdefs.h> 61__FBSDID("$FreeBSD: head/sys/dev/aha/aha.c 163816 2006-10-31 05:53:29Z mjacob $"); 62 63#include <sys/param.h> 64#include <sys/bus.h> 65#include <sys/systm.h> 66#include <sys/malloc.h> 67#include <sys/kernel.h> 68#include <sys/lock.h> 69#include <sys/mutex.h> 70 71#include <machine/bus.h> 72 73#include <cam/cam.h> 74#include <cam/cam_ccb.h> 75#include <cam/cam_sim.h> 76#include <cam/cam_xpt_sim.h> 77#include <cam/cam_debug.h> 78 79#include <cam/scsi/scsi_message.h> 80 81#include <dev/aha/ahareg.h> 82 83#define PRVERB(x) do { if (bootverbose) device_printf x; } while (0) 84 85/* Macro to determine that a rev is potentially a new valid one 86 * so that the driver doesn't keep breaking on new revs as it 87 * did for the CF and CP. 88 */ 89#define PROBABLY_NEW_BOARD(REV) (REV > 0x43 && REV < 0x56) 90 91/* MailBox Management functions */ 92static __inline void ahanextinbox(struct aha_softc *aha); 93static __inline void ahanextoutbox(struct aha_softc *aha); 94 95#define aha_name(aha) device_get_nameunit(aha->dev) 96 97static __inline void 98ahanextinbox(struct aha_softc *aha) 99{ 100 if (aha->cur_inbox == aha->last_inbox) 101 aha->cur_inbox = aha->in_boxes; 102 else 103 aha->cur_inbox++; 104} 105 106static __inline void 107ahanextoutbox(struct aha_softc *aha) 108{ 109 if (aha->cur_outbox == aha->last_outbox) 110 aha->cur_outbox = aha->out_boxes; 111 else 112 aha->cur_outbox++; 113} 114 115#define ahautoa24(u,s3) \ 116 (s3)[0] = ((u) >> 16) & 0xff; \ 117 (s3)[1] = ((u) >> 8) & 0xff; \ 118 (s3)[2] = (u) & 0xff; 119 120#define aha_a24tou(s3) \ 121 (((s3)[0] << 16) | ((s3)[1] << 8) | (s3)[2]) 122 123/* CCB Mangement functions */ 124static __inline uint32_t ahaccbvtop(struct aha_softc *aha, 125 struct aha_ccb *accb); 126static __inline struct aha_ccb* ahaccbptov(struct aha_softc *aha, 127 uint32_t ccb_addr); 128 129static __inline uint32_t 130ahaccbvtop(struct aha_softc *aha, struct aha_ccb *accb) 131{ 132 return (aha->aha_ccb_physbase 133 + (uint32_t)((caddr_t)accb - (caddr_t)aha->aha_ccb_array)); 134} 135static __inline struct aha_ccb * 136ahaccbptov(struct aha_softc *aha, uint32_t ccb_addr) 137{ 138 return (aha->aha_ccb_array + 139 + ((struct aha_ccb*)(uintptr_t)ccb_addr - 140 (struct aha_ccb*)(uintptr_t)aha->aha_ccb_physbase)); 141} 142 143static struct aha_ccb* ahagetccb(struct aha_softc *aha); 144static __inline void ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb); 145static void ahaallocccbs(struct aha_softc *aha); 146static bus_dmamap_callback_t ahaexecuteccb; 147static void ahadone(struct aha_softc *aha, struct aha_ccb *accb, 148 aha_mbi_comp_code_t comp_code); 149 150/* Host adapter command functions */ 151static int ahareset(struct aha_softc* aha, int hard_reset); 152 153/* Initialization functions */ 154static int ahainitmboxes(struct aha_softc *aha); 155static bus_dmamap_callback_t ahamapmboxes; 156static bus_dmamap_callback_t ahamapccbs; 157static bus_dmamap_callback_t ahamapsgs; 158 159/* Transfer Negotiation Functions */ 160static void ahafetchtransinfo(struct aha_softc *aha, 161 struct ccb_trans_settings *cts); 162 163/* CAM SIM entry points */ 164#define ccb_accb_ptr spriv_ptr0 165#define ccb_aha_ptr spriv_ptr1 166static void ahaaction(struct cam_sim *sim, union ccb *ccb); 167static void ahapoll(struct cam_sim *sim); 168 169/* Our timeout handler */ 170static timeout_t ahatimeout; 171 172/* Exported functions */ 173void 174aha_alloc(struct aha_softc *aha, int unit, bus_space_tag_t tag, 175 bus_space_handle_t bsh) 176{ 177 178 SLIST_INIT(&aha->free_aha_ccbs); 179 LIST_INIT(&aha->pending_ccbs); 180 SLIST_INIT(&aha->sg_maps); 181 aha->unit = unit; 182 aha->tag = tag; 183 aha->bsh = bsh; 184 aha->ccb_sg_opcode = INITIATOR_SG_CCB_WRESID; 185 aha->ccb_ccb_opcode = INITIATOR_CCB_WRESID; 186} 187 188void 189aha_free(struct aha_softc *aha) 190{ 191 switch (aha->init_level) { 192 default: 193 case 8: 194 { 195 struct sg_map_node *sg_map; 196 197 while ((sg_map = SLIST_FIRST(&aha->sg_maps))!= NULL) { 198 SLIST_REMOVE_HEAD(&aha->sg_maps, links); 199 bus_dmamap_unload(aha->sg_dmat, sg_map->sg_dmamap); 200 bus_dmamem_free(aha->sg_dmat, sg_map->sg_vaddr, 201 sg_map->sg_dmamap); 202 free(sg_map, M_DEVBUF); 203 } 204 bus_dma_tag_destroy(aha->sg_dmat); 205 } 206 case 7: 207 bus_dmamap_unload(aha->ccb_dmat, aha->ccb_dmamap); 208 case 6: 209 bus_dmamap_destroy(aha->ccb_dmat, aha->ccb_dmamap); 210 bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array, 211 aha->ccb_dmamap); 212 case 5: 213 bus_dma_tag_destroy(aha->ccb_dmat); 214 case 4: 215 bus_dmamap_unload(aha->mailbox_dmat, aha->mailbox_dmamap); 216 case 3: 217 bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes, 218 aha->mailbox_dmamap); 219 bus_dmamap_destroy(aha->mailbox_dmat, aha->mailbox_dmamap); 220 case 2: 221 bus_dma_tag_destroy(aha->buffer_dmat); 222 case 1: 223 bus_dma_tag_destroy(aha->mailbox_dmat); 224 case 0: 225 break; 226 } 227} 228 229/* 230 * Probe the adapter and verify that the card is an Adaptec. 231 */ 232int 233aha_probe(struct aha_softc* aha) 234{ 235 u_int status; 236 u_int intstat; 237 int error; 238 board_id_data_t board_id; 239 240 /* 241 * See if the three I/O ports look reasonable. 242 * Touch the minimal number of registers in the 243 * failure case. 244 */ 245 status = aha_inb(aha, STATUS_REG); 246 if ((status == 0) || 247 (status & (DIAG_ACTIVE|CMD_REG_BUSY | STATUS_REG_RSVD)) != 0) { 248 PRVERB((aha->dev, "status reg test failed %x\n", status)); 249 return (ENXIO); 250 } 251 252 intstat = aha_inb(aha, INTSTAT_REG); 253 if ((intstat & INTSTAT_REG_RSVD) != 0) { 254 PRVERB((aha->dev, "Failed Intstat Reg Test\n")); 255 return (ENXIO); 256 } 257 258 /* 259 * Looking good so far. Final test is to reset the 260 * adapter and fetch the board ID and ensure we aren't 261 * looking at a BusLogic. 262 */ 263 if ((error = ahareset(aha, /*hard_reset*/TRUE)) != 0) { 264 PRVERB((aha->dev, "Failed Reset\n")); 265 return (ENXIO); 266 } 267 268 /* 269 * Get the board ID. We use this to see if we're dealing with 270 * a buslogic card or an aha card (or clone). 271 */ 272 error = aha_cmd(aha, AOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 273 (uint8_t*)&board_id, sizeof(board_id), DEFAULT_CMD_TIMEOUT); 274 if (error != 0) { 275 PRVERB((aha->dev, "INQUIRE failed %x\n", error)); 276 return (ENXIO); 277 } 278 aha->fw_major = board_id.firmware_rev_major; 279 aha->fw_minor = board_id.firmware_rev_minor; 280 aha->boardid = board_id.board_type; 281 282 /* 283 * The Buslogic cards have an id of either 0x41 or 0x42. So 284 * if those come up in the probe, we test the geometry register 285 * of the board. Adaptec boards that are this old will not have 286 * this register, and return 0xff, while buslogic cards will return 287 * something different. 288 * 289 * It appears that for reasons unknow, for the for the 290 * aha-1542B cards, we need to wait a little bit before trying 291 * to read the geometry register. I picked 10ms since we have 292 * reports that a for loop to 1000 did the trick, and this 293 * errs on the side of conservatism. Besides, no one will 294 * notice a 10mS delay here, even the 1542B card users :-) 295 * 296 * Some compatible cards return 0 here. Some cards also 297 * seem to return 0x7f. 298 * 299 * XXX I'm not sure how this will impact other cloned cards 300 * 301 * This really should be replaced with the esetup command, since 302 * that appears to be more reliable. This becomes more and more 303 * true over time as we discover more cards that don't read the 304 * geometry register consistantly. 305 */ 306 if (aha->boardid <= 0x42) { 307 /* Wait 10ms before reading */ 308 DELAY(10000); 309 status = aha_inb(aha, GEOMETRY_REG); 310 if (status != 0xff && status != 0x00 && status != 0x7f) { 311 PRVERB((aha->dev, "Geometry Register test failed %#x\n", 312 status)); 313 return (ENXIO); 314 } 315 } 316 317 return (0); 318} 319 320/* 321 * Pull the boards setup information and record it in our softc. 322 */ 323int 324aha_fetch_adapter_info(struct aha_softc *aha) 325{ 326 setup_data_t setup_info; 327 config_data_t config_data; 328 uint8_t length_param; 329 int error; 330 struct aha_extbios extbios; 331 332 switch (aha->boardid) { 333 case BOARD_1540_16HEAD_BIOS: 334 snprintf(aha->model, sizeof(aha->model), "1540 16 head BIOS"); 335 break; 336 case BOARD_1540_64HEAD_BIOS: 337 snprintf(aha->model, sizeof(aha->model), "1540 64 head BIOS"); 338 break; 339 case BOARD_1542: 340 snprintf(aha->model, sizeof(aha->model), "1540/1542 64 head BIOS"); 341 break; 342 case BOARD_1640: 343 snprintf(aha->model, sizeof(aha->model), "1640"); 344 break; 345 case BOARD_1740: 346 snprintf(aha->model, sizeof(aha->model), "1740A/1742A/1744"); 347 break; 348 case BOARD_1542C: 349 snprintf(aha->model, sizeof(aha->model), "1542C"); 350 break; 351 case BOARD_1542CF: 352 snprintf(aha->model, sizeof(aha->model), "1542CF"); 353 break; 354 case BOARD_1542CP: 355 snprintf(aha->model, sizeof(aha->model), "1542CP"); 356 break; 357 default: 358 snprintf(aha->model, sizeof(aha->model), "Unknown"); 359 break; 360 } 361 /* 362 * If we are a new type of 1542 board (anything newer than a 1542C) 363 * then disable the extended bios so that the 364 * mailbox interface is unlocked. 365 * This is also true for the 1542B Version 3.20. First Adaptec 366 * board that supports >1Gb drives. 367 * No need to check the extended bios flags as some of the 368 * extensions that cause us problems are not flagged in that byte. 369 */ 370 if (PROBABLY_NEW_BOARD(aha->boardid) || 371 (aha->boardid == 0x41 372 && aha->fw_major == 0x31 && 373 aha->fw_minor >= 0x34)) { 374 error = aha_cmd(aha, AOP_RETURN_EXT_BIOS_INFO, NULL, 375 /*paramlen*/0, (u_char *)&extbios, sizeof(extbios), 376 DEFAULT_CMD_TIMEOUT); 377 if (error != 0) { 378 device_printf(aha->dev, 379 "AOP_RETURN_EXT_BIOS_INFO - Failed."); 380 return (error); 381 } 382 error = aha_cmd(aha, AOP_MBOX_IF_ENABLE, (uint8_t *)&extbios, 383 /*paramlen*/2, NULL, 0, DEFAULT_CMD_TIMEOUT); 384 if (error != 0) { 385 device_printf(aha->dev, "AOP_MBOX_IF_ENABLE - Failed."); 386 return (error); 387 } 388 } 389 if (aha->boardid < 0x41) 390 device_printf(aha->dev, "Warning: aha-1542A won't work.\n"); 391 392 aha->max_sg = 17; /* Need >= 17 to do 64k I/O */ 393 aha->diff_bus = 0; 394 aha->extended_lun = 0; 395 aha->extended_trans = 0; 396 aha->max_ccbs = 16; 397 /* Determine Sync/Wide/Disc settings */ 398 length_param = sizeof(setup_info); 399 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, &length_param, 400 /*paramlen*/1, (uint8_t*)&setup_info, sizeof(setup_info), 401 DEFAULT_CMD_TIMEOUT); 402 if (error != 0) { 403 device_printf(aha->dev, "aha_fetch_adapter_info - Failed " 404 "Get Setup Info\n"); 405 return (error); 406 } 407 if (setup_info.initiate_sync != 0) { 408 aha->sync_permitted = ALL_TARGETS; 409 } 410 aha->disc_permitted = ALL_TARGETS; 411 412 /* We need as many mailboxes as we can have ccbs */ 413 aha->num_boxes = aha->max_ccbs; 414 415 /* Determine our SCSI ID */ 416 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 417 (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT); 418 if (error != 0) { 419 device_printf(aha->dev, 420 "aha_fetch_adapter_info - Failed Get Config\n"); 421 return (error); 422 } 423 aha->scsi_id = config_data.scsi_id; 424 return (0); 425} 426 427/* 428 * Start the board, ready for normal operation 429 */ 430int 431aha_init(struct aha_softc* aha) 432{ 433 /* Announce the Adapter */ 434 device_printf(aha->dev, "AHA-%s FW Rev. %c.%c (ID=%x) ", 435 aha->model, aha->fw_major, aha->fw_minor, aha->boardid); 436 437 if (aha->diff_bus != 0) 438 printf("Diff "); 439 440 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", aha->scsi_id, 441 aha->max_ccbs); 442 443 /* 444 * Create our DMA tags. These tags define the kinds of device 445 * accessible memory allocations and memory mappings we will 446 * need to perform during normal operation. 447 * 448 * Unless we need to further restrict the allocation, we rely 449 * on the restrictions of the parent dmat, hence the common 450 * use of MAXADDR and MAXSIZE. 451 */ 452 453 /* DMA tag for mapping buffers into device visible space. */ 454 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 455 /* alignment */ 1, 456 /* boundary */ 0, 457 /* lowaddr */ BUS_SPACE_MAXADDR, 458 /* highaddr */ BUS_SPACE_MAXADDR, 459 /* filter */ NULL, 460 /* filterarg */ NULL, 461 /* maxsize */ MAXBSIZE, 462 /* nsegments */ AHA_NSEG, 463 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 464 /* flags */ BUS_DMA_ALLOCNOW, 465 /* lockfunc */ busdma_lock_mutex, 466 /* lockarg */ &Giant, 467 &aha->buffer_dmat) != 0) { 468 goto error_exit; 469 } 470 471 aha->init_level++; 472 /* DMA tag for our mailboxes */ 473 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 474 /* alignment */ 1, 475 /* boundary */ 0, 476 /* lowaddr */ BUS_SPACE_MAXADDR, 477 /* highaddr */ BUS_SPACE_MAXADDR, 478 /* filter */ NULL, 479 /* filterarg */ NULL, 480 /* maxsize */ aha->num_boxes * 481 (sizeof(aha_mbox_in_t) + 482 sizeof(aha_mbox_out_t)), 483 /* nsegments */ 1, 484 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 485 /* flags */ 0, 486 /* lockfunc */ busdma_lock_mutex, 487 /* lockarg */ &Giant, 488 &aha->mailbox_dmat) != 0) { 489 goto error_exit; 490 } 491 492 aha->init_level++; 493 494 /* Allocation for our mailboxes */ 495 if (bus_dmamem_alloc(aha->mailbox_dmat, (void **)&aha->out_boxes, 496 BUS_DMA_NOWAIT, &aha->mailbox_dmamap) != 0) 497 goto error_exit; 498 499 aha->init_level++; 500 501 /* And permanently map them */ 502 bus_dmamap_load(aha->mailbox_dmat, aha->mailbox_dmamap, 503 aha->out_boxes, aha->num_boxes * (sizeof(aha_mbox_in_t) + 504 sizeof(aha_mbox_out_t)), ahamapmboxes, aha, /*flags*/0); 505 506 aha->init_level++; 507 508 aha->in_boxes = (aha_mbox_in_t *)&aha->out_boxes[aha->num_boxes]; 509 510 ahainitmboxes(aha); 511 512 /* DMA tag for our ccb structures */ 513 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 514 /* alignment */ 1, 515 /* boundary */ 0, 516 /* lowaddr */ BUS_SPACE_MAXADDR, 517 /* highaddr */ BUS_SPACE_MAXADDR, 518 /* filter */ NULL, 519 /* filterarg */ NULL, 520 /* maxsize */ aha->max_ccbs * 521 sizeof(struct aha_ccb), 522 /* nsegments */ 1, 523 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 524 /* flags */ 0, 525 /* lockfunc */ busdma_lock_mutex, 526 /* lockarg */ &Giant, 527 &aha->ccb_dmat) != 0) { 528 goto error_exit; 529 } 530 531 aha->init_level++; 532 533 /* Allocation for our ccbs */ 534 if (bus_dmamem_alloc(aha->ccb_dmat, (void **)&aha->aha_ccb_array, 535 BUS_DMA_NOWAIT, &aha->ccb_dmamap) != 0) 536 goto error_exit; 537 538 aha->init_level++; 539 540 /* And permanently map them */ 541 bus_dmamap_load(aha->ccb_dmat, aha->ccb_dmamap, aha->aha_ccb_array, 542 aha->max_ccbs * sizeof(struct aha_ccb), ahamapccbs, aha, /*flags*/0); 543 544 aha->init_level++; 545 546 /* DMA tag for our S/G structures. We allocate in page sized chunks */ 547 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 548 /* alignment */ 1, 549 /* boundary */ 0, 550 /* lowaddr */ BUS_SPACE_MAXADDR, 551 /* highaddr */ BUS_SPACE_MAXADDR, 552 /* filter */ NULL, 553 /* filterarg */ NULL, 554 /* maxsize */ PAGE_SIZE, 555 /* nsegments */ 1, 556 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 557 /* flags */ 0, 558 /* lockfunc */ busdma_lock_mutex, 559 /* lockarg */ &Giant, 560 &aha->sg_dmat) != 0) 561 goto error_exit; 562 563 aha->init_level++; 564 565 /* Perform initial CCB allocation */ 566 bzero(aha->aha_ccb_array, aha->max_ccbs * sizeof(struct aha_ccb)); 567 ahaallocccbs(aha); 568 569 if (aha->num_ccbs == 0) { 570 device_printf(aha->dev, 571 "aha_init - Unable to allocate initial ccbs\n"); 572 goto error_exit; 573 } 574 575 /* 576 * Note that we are going and return (to probe) 577 */ 578 return (0); 579 580error_exit: 581 582 return (ENXIO); 583} 584 585int 586aha_attach(struct aha_softc *aha) 587{ 588 int tagged_dev_openings; 589 struct cam_devq *devq; 590 591 /* 592 * We don't do tagged queueing, since the aha cards don't 593 * support it. 594 */ 595 tagged_dev_openings = 0; 596 597 /* 598 * Create the device queue for our SIM. 599 */ 600 devq = cam_simq_alloc(aha->max_ccbs - 1); 601 if (devq == NULL) 602 return (ENOMEM); 603 604 /* 605 * Construct our SIM entry 606 */ 607 aha->sim = cam_sim_alloc(ahaaction, ahapoll, "aha", aha, aha->unit, 2, 608 tagged_dev_openings, devq); 609 if (aha->sim == NULL) { 610 cam_simq_free(devq); 611 return (ENOMEM); 612 } 613 if (xpt_bus_register(aha->sim, 0) != CAM_SUCCESS) { 614 cam_sim_free(aha->sim, /*free_devq*/TRUE); 615 return (ENXIO); 616 } 617 if (xpt_create_path(&aha->path, /*periph*/NULL, cam_sim_path(aha->sim), 618 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 619 xpt_bus_deregister(cam_sim_path(aha->sim)); 620 cam_sim_free(aha->sim, /*free_devq*/TRUE); 621 return (ENXIO); 622 } 623 624 return (0); 625} 626 627static void 628ahaallocccbs(struct aha_softc *aha) 629{ 630 struct aha_ccb *next_ccb; 631 struct sg_map_node *sg_map; 632 bus_addr_t physaddr; 633 aha_sg_t *segs; 634 int newcount; 635 int i; 636 637 next_ccb = &aha->aha_ccb_array[aha->num_ccbs]; 638 639 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 640 641 if (sg_map == NULL) 642 return; 643 644 /* Allocate S/G space for the next batch of CCBS */ 645 if (bus_dmamem_alloc(aha->sg_dmat, (void **)&sg_map->sg_vaddr, 646 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 647 free(sg_map, M_DEVBUF); 648 return; 649 } 650 651 SLIST_INSERT_HEAD(&aha->sg_maps, sg_map, links); 652 653 bus_dmamap_load(aha->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 654 PAGE_SIZE, ahamapsgs, aha, /*flags*/0); 655 656 segs = sg_map->sg_vaddr; 657 physaddr = sg_map->sg_physaddr; 658 659 newcount = (PAGE_SIZE / (AHA_NSEG * sizeof(aha_sg_t))); 660 for (i = 0; aha->num_ccbs < aha->max_ccbs && i < newcount; i++) { 661 int error; 662 663 next_ccb->sg_list = segs; 664 next_ccb->sg_list_phys = physaddr; 665 next_ccb->flags = ACCB_FREE; 666 error = bus_dmamap_create(aha->buffer_dmat, /*flags*/0, 667 &next_ccb->dmamap); 668 if (error != 0) 669 break; 670 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, next_ccb, links); 671 segs += AHA_NSEG; 672 physaddr += (AHA_NSEG * sizeof(aha_sg_t)); 673 next_ccb++; 674 aha->num_ccbs++; 675 } 676 677 /* Reserve a CCB for error recovery */ 678 if (aha->recovery_accb == NULL) { 679 aha->recovery_accb = SLIST_FIRST(&aha->free_aha_ccbs); 680 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 681 } 682} 683 684static __inline void 685ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb) 686{ 687 int s; 688 689 s = splcam(); 690 if ((accb->flags & ACCB_ACTIVE) != 0) 691 LIST_REMOVE(&accb->ccb->ccb_h, sim_links.le); 692 if (aha->resource_shortage != 0 693 && (accb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 694 accb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 695 aha->resource_shortage = FALSE; 696 } 697 accb->flags = ACCB_FREE; 698 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, accb, links); 699 aha->active_ccbs--; 700 splx(s); 701} 702 703static struct aha_ccb* 704ahagetccb(struct aha_softc *aha) 705{ 706 struct aha_ccb* accb; 707 int s; 708 709 s = splcam(); 710 if ((accb = SLIST_FIRST(&aha->free_aha_ccbs)) != NULL) { 711 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 712 aha->active_ccbs++; 713 } else if (aha->num_ccbs < aha->max_ccbs) { 714 ahaallocccbs(aha); 715 accb = SLIST_FIRST(&aha->free_aha_ccbs); 716 if (accb == NULL) 717 device_printf(aha->dev, "Can't malloc ACCB\n"); 718 else { 719 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 720 aha->active_ccbs++; 721 } 722 } 723 splx(s); 724 725 return (accb); 726} 727 728static void 729ahaaction(struct cam_sim *sim, union ccb *ccb) 730{ 731 struct aha_softc *aha; 732 int s; 733 734 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahaaction\n")); 735 736 aha = (struct aha_softc *)cam_sim_softc(sim); 737 738 switch (ccb->ccb_h.func_code) { 739 /* Common cases first */ 740 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 741 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ { 742 struct aha_ccb *accb; 743 struct aha_hccb *hccb; 744 745 /* 746 * Get an accb to use. 747 */ 748 if ((accb = ahagetccb(aha)) == NULL) { 749 s = splcam(); 750 aha->resource_shortage = TRUE; 751 splx(s); 752 xpt_freeze_simq(aha->sim, /*count*/1); 753 ccb->ccb_h.status = CAM_REQUEUE_REQ; 754 xpt_done(ccb); 755 return; 756 } 757 hccb = &accb->hccb; 758 759 /* 760 * So we can find the ACCB when an abort is requested 761 */ 762 accb->ccb = ccb; 763 ccb->ccb_h.ccb_accb_ptr = accb; 764 ccb->ccb_h.ccb_aha_ptr = aha; 765 766 /* 767 * Put all the arguments for the xfer in the accb 768 */ 769 hccb->target = ccb->ccb_h.target_id; 770 hccb->lun = ccb->ccb_h.target_lun; 771 hccb->ahastat = 0; 772 hccb->sdstat = 0; 773 774 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 775 struct ccb_scsiio *csio; 776 struct ccb_hdr *ccbh; 777 778 csio = &ccb->csio; 779 ccbh = &csio->ccb_h; 780 hccb->opcode = aha->ccb_ccb_opcode; 781 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) != 0; 782 hccb->dataout = (ccb->ccb_h.flags & CAM_DIR_OUT) != 0; 783 hccb->cmd_len = csio->cdb_len; 784 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 785 ccb->ccb_h.status = CAM_REQ_INVALID; 786 ahafreeccb(aha, accb); 787 xpt_done(ccb); 788 return; 789 } 790 hccb->sense_len = csio->sense_len; 791 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 792 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 793 bcopy(csio->cdb_io.cdb_ptr, 794 hccb->scsi_cdb, hccb->cmd_len); 795 } else { 796 /* I guess I could map it in... */ 797 ccbh->status = CAM_REQ_INVALID; 798 ahafreeccb(aha, accb); 799 xpt_done(ccb); 800 return; 801 } 802 } else { 803 bcopy(csio->cdb_io.cdb_bytes, 804 hccb->scsi_cdb, hccb->cmd_len); 805 } 806 /* 807 * If we have any data to send with this command, 808 * map it into bus space. 809 */ 810 /* Only use S/G if there is a transfer */ 811 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 812 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 813 /* 814 * We've been given a pointer 815 * to a single buffer. 816 */ 817 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 818 int error; 819 820 s = splsoftvm(); 821 error = bus_dmamap_load( 822 aha->buffer_dmat, 823 accb->dmamap, 824 csio->data_ptr, 825 csio->dxfer_len, 826 ahaexecuteccb, 827 accb, 828 /*flags*/0); 829 if (error == EINPROGRESS) { 830 /* 831 * So as to maintain 832 * ordering, freeze the 833 * controller queue 834 * until our mapping is 835 * returned. 836 */ 837 xpt_freeze_simq(aha->sim, 838 1); 839 csio->ccb_h.status |= 840 CAM_RELEASE_SIMQ; 841 } 842 splx(s); 843 } else { 844 struct bus_dma_segment seg; 845 846 /* Pointer to physical buffer */ 847 seg.ds_addr = 848 (bus_addr_t)csio->data_ptr; 849 seg.ds_len = csio->dxfer_len; 850 ahaexecuteccb(accb, &seg, 1, 0); 851 } 852 } else { 853 struct bus_dma_segment *segs; 854 855 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 856 panic("ahaaction - Physical " 857 "segment pointers " 858 "unsupported"); 859 860 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 861 panic("ahaaction - Virtual " 862 "segment addresses " 863 "unsupported"); 864 865 /* Just use the segments provided */ 866 segs = (struct bus_dma_segment *) 867 csio->data_ptr; 868 ahaexecuteccb(accb, segs, 869 csio->sglist_cnt, 0); 870 } 871 } else { 872 ahaexecuteccb(accb, NULL, 0, 0); 873 } 874 } else { 875 hccb->opcode = INITIATOR_BUS_DEV_RESET; 876 /* No data transfer */ 877 hccb->datain = TRUE; 878 hccb->dataout = TRUE; 879 hccb->cmd_len = 0; 880 hccb->sense_len = 0; 881 ahaexecuteccb(accb, NULL, 0, 0); 882 } 883 break; 884 } 885 case XPT_EN_LUN: /* Enable LUN as a target */ 886 case XPT_TARGET_IO: /* Execute target I/O request */ 887 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 888 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 889 case XPT_ABORT: /* Abort the specified CCB */ 890 /* XXX Implement */ 891 ccb->ccb_h.status = CAM_REQ_INVALID; 892 xpt_done(ccb); 893 break; 894 case XPT_SET_TRAN_SETTINGS: 895 /* XXX Implement */ 896 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 897 xpt_done(ccb); 898 break; 899 case XPT_GET_TRAN_SETTINGS: 900 /* Get default/user set transfer settings for the target */ 901 { 902 struct ccb_trans_settings *cts = &ccb->cts; 903 u_int target_mask = 0x01 << ccb->ccb_h.target_id; 904#ifdef CAM_NEW_TRAN_CODE 905 struct ccb_trans_settings_scsi *scsi = 906 &cts->proto_specific.scsi; 907 struct ccb_trans_settings_spi *spi = 908 &cts->xport_specific.spi; 909 910 cts->protocol = PROTO_SCSI; 911 cts->protocol_version = SCSI_REV_2; 912 cts->transport = XPORT_SPI; 913 cts->transport_version = 2; 914 if (cts->type == CTS_TYPE_USER_SETTINGS) { 915 spi->flags = 0; 916 if ((aha->disc_permitted & target_mask) != 0) 917 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 918 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 919 if ((aha->sync_permitted & target_mask) != 0) { 920 if (aha->boardid >= BOARD_1542CF) 921 spi->sync_period = 25; 922 else 923 spi->sync_period = 50; 924 } else { 925 spi->sync_period = 0; 926 } 927 928 if (spi->sync_period != 0) 929 spi->sync_offset = 15; 930 931 spi->valid = CTS_SPI_VALID_SYNC_RATE 932 | CTS_SPI_VALID_SYNC_OFFSET 933 | CTS_SPI_VALID_BUS_WIDTH 934 | CTS_SPI_VALID_DISC; 935 scsi->valid = CTS_SCSI_VALID_TQ; 936 } else { 937 ahafetchtransinfo(aha, cts); 938 } 939#else 940 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 941 cts->flags = 0; 942 if ((aha->disc_permitted & target_mask) != 0) 943 cts->flags |= CCB_TRANS_DISC_ENB; 944 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 945 if ((aha->sync_permitted & target_mask) != 0) { 946 if (aha->boardid >= BOARD_1542CF) 947 cts->sync_period = 25; 948 else 949 cts->sync_period = 50; 950 } else 951 cts->sync_period = 0; 952 953 if (cts->sync_period != 0) 954 cts->sync_offset = 15; 955 956 cts->valid = CCB_TRANS_SYNC_RATE_VALID 957 | CCB_TRANS_SYNC_OFFSET_VALID 958 | CCB_TRANS_BUS_WIDTH_VALID 959 | CCB_TRANS_DISC_VALID 960 | CCB_TRANS_TQ_VALID; 961 } else { 962 ahafetchtransinfo(aha, cts); 963 } 964#endif 965 966 ccb->ccb_h.status = CAM_REQ_CMP; 967 xpt_done(ccb); 968 break; 969 } 970 case XPT_CALC_GEOMETRY: 971 { 972 struct ccb_calc_geometry *ccg; 973 uint32_t size_mb; 974 uint32_t secs_per_cylinder; 975 976 ccg = &ccb->ccg; 977 size_mb = ccg->volume_size 978 / ((1024L * 1024L) / ccg->block_size); 979 if (size_mb >= 1024 && (aha->extended_trans != 0)) { 980 if (size_mb >= 2048) { 981 ccg->heads = 255; 982 ccg->secs_per_track = 63; 983 } else { 984 ccg->heads = 128; 985 ccg->secs_per_track = 32; 986 } 987 } else { 988 ccg->heads = 64; 989 ccg->secs_per_track = 32; 990 } 991 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 992 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 993 ccb->ccb_h.status = CAM_REQ_CMP; 994 xpt_done(ccb); 995 break; 996 } 997 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 998 ahareset(aha, /*hardreset*/TRUE); 999 ccb->ccb_h.status = CAM_REQ_CMP; 1000 xpt_done(ccb); 1001 break; 1002 case XPT_TERM_IO: /* Terminate the I/O process */ 1003 /* XXX Implement */ 1004 ccb->ccb_h.status = CAM_REQ_INVALID; 1005 xpt_done(ccb); 1006 break; 1007 case XPT_PATH_INQ: /* Path routing inquiry */ 1008 { 1009 struct ccb_pathinq *cpi = &ccb->cpi; 1010 1011 cpi->version_num = 1; /* XXX??? */ 1012 cpi->hba_inquiry = PI_SDTR_ABLE; 1013 cpi->target_sprt = 0; 1014 cpi->hba_misc = 0; 1015 cpi->hba_eng_cnt = 0; 1016 cpi->max_target = 7; 1017 cpi->max_lun = 7; 1018 cpi->initiator_id = aha->scsi_id; 1019 cpi->bus_id = cam_sim_bus(sim); 1020 cpi->base_transfer_speed = 3300; 1021 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 1022 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 1023 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 1024 cpi->unit_number = cam_sim_unit(sim); 1025#ifdef CAM_NEW_TRAN_CODE 1026 cpi->transport = XPORT_SPI; 1027 cpi->transport_version = 2; 1028 cpi->protocol = PROTO_SCSI; 1029 cpi->protocol_version = SCSI_REV_2; 1030#endif 1031 cpi->ccb_h.status = CAM_REQ_CMP; 1032 xpt_done(ccb); 1033 break; 1034 } 1035 default: 1036 ccb->ccb_h.status = CAM_REQ_INVALID; 1037 xpt_done(ccb); 1038 break; 1039 } 1040} 1041 1042static void 1043ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1044{ 1045 struct aha_ccb *accb; 1046 union ccb *ccb; 1047 struct aha_softc *aha; 1048 int s; 1049 uint32_t paddr; 1050 1051 accb = (struct aha_ccb *)arg; 1052 ccb = accb->ccb; 1053 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1054 1055 if (error != 0) { 1056 if (error != EFBIG) 1057 device_printf(aha->dev, 1058 "Unexepected error 0x%x returned from " 1059 "bus_dmamap_load\n", error); 1060 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1061 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1062 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1063 } 1064 ahafreeccb(aha, accb); 1065 xpt_done(ccb); 1066 return; 1067 } 1068 1069 if (nseg != 0) { 1070 aha_sg_t *sg; 1071 bus_dma_segment_t *end_seg; 1072 bus_dmasync_op_t op; 1073 1074 end_seg = dm_segs + nseg; 1075 1076 /* Copy the segments into our SG list */ 1077 sg = accb->sg_list; 1078 while (dm_segs < end_seg) { 1079 ahautoa24(dm_segs->ds_len, sg->len); 1080 ahautoa24(dm_segs->ds_addr, sg->addr); 1081 sg++; 1082 dm_segs++; 1083 } 1084 1085 if (nseg > 1) { 1086 accb->hccb.opcode = aha->ccb_sg_opcode; 1087 ahautoa24((sizeof(aha_sg_t) * nseg), 1088 accb->hccb.data_len); 1089 ahautoa24(accb->sg_list_phys, accb->hccb.data_addr); 1090 } else { 1091 bcopy(accb->sg_list->len, accb->hccb.data_len, 3); 1092 bcopy(accb->sg_list->addr, accb->hccb.data_addr, 3); 1093 } 1094 1095 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1096 op = BUS_DMASYNC_PREREAD; 1097 else 1098 op = BUS_DMASYNC_PREWRITE; 1099 1100 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1101 1102 } else { 1103 accb->hccb.opcode = INITIATOR_CCB; 1104 ahautoa24(0, accb->hccb.data_len); 1105 ahautoa24(0, accb->hccb.data_addr); 1106 } 1107 1108 s = splcam(); 1109 1110 /* 1111 * Last time we need to check if this CCB needs to 1112 * be aborted. 1113 */ 1114 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1115 if (nseg != 0) 1116 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1117 ahafreeccb(aha, accb); 1118 xpt_done(ccb); 1119 splx(s); 1120 return; 1121 } 1122 1123 accb->flags = ACCB_ACTIVE; 1124 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1125 LIST_INSERT_HEAD(&aha->pending_ccbs, &ccb->ccb_h, sim_links.le); 1126 1127 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 1128 (ccb->ccb_h.timeout * hz) / 1000); 1129 1130 /* Tell the adapter about this command */ 1131 if (aha->cur_outbox->action_code != AMBO_FREE) { 1132 /* 1133 * We should never encounter a busy mailbox. 1134 * If we do, warn the user, and treat it as 1135 * a resource shortage. If the controller is 1136 * hung, one of the pending transactions will 1137 * timeout causing us to start recovery operations. 1138 */ 1139 device_printf(aha->dev, 1140 "Encountered busy mailbox with %d out of %d " 1141 "commands active!!!", aha->active_ccbs, aha->max_ccbs); 1142 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1143 if (nseg != 0) 1144 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1145 ahafreeccb(aha, accb); 1146 aha->resource_shortage = TRUE; 1147 xpt_freeze_simq(aha->sim, /*count*/1); 1148 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1149 xpt_done(ccb); 1150 return; 1151 } 1152 paddr = ahaccbvtop(aha, accb); 1153 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1154 aha->cur_outbox->action_code = AMBO_START; 1155 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1156 1157 ahanextoutbox(aha); 1158 splx(s); 1159} 1160 1161void 1162aha_intr(void *arg) 1163{ 1164 struct aha_softc *aha; 1165 u_int intstat; 1166 uint32_t paddr; 1167 1168 aha = (struct aha_softc *)arg; 1169 while (((intstat = aha_inb(aha, INTSTAT_REG)) & INTR_PENDING) != 0) { 1170 if ((intstat & CMD_COMPLETE) != 0) { 1171 aha->latched_status = aha_inb(aha, STATUS_REG); 1172 aha->command_cmp = TRUE; 1173 } 1174 1175 aha_outb(aha, CONTROL_REG, RESET_INTR); 1176 1177 if ((intstat & IMB_LOADED) != 0) { 1178 while (aha->cur_inbox->comp_code != AMBI_FREE) { 1179 paddr = aha_a24tou(aha->cur_inbox->ccb_addr); 1180 ahadone(aha, ahaccbptov(aha, paddr), 1181 aha->cur_inbox->comp_code); 1182 aha->cur_inbox->comp_code = AMBI_FREE; 1183 ahanextinbox(aha); 1184 } 1185 } 1186 1187 if ((intstat & SCSI_BUS_RESET) != 0) { 1188 ahareset(aha, /*hardreset*/FALSE); 1189 } 1190 } 1191} 1192 1193static void 1194ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_code) 1195{ 1196 union ccb *ccb; 1197 struct ccb_scsiio *csio; 1198 1199 ccb = accb->ccb; 1200 csio = &accb->ccb->csio; 1201 1202 if ((accb->flags & ACCB_ACTIVE) == 0) { 1203 device_printf(aha->dev, 1204 "ahadone - Attempt to free non-active ACCB %p\n", 1205 (void *)accb); 1206 return; 1207 } 1208 1209 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1210 bus_dmasync_op_t op; 1211 1212 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1213 op = BUS_DMASYNC_POSTREAD; 1214 else 1215 op = BUS_DMASYNC_POSTWRITE; 1216 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1217 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1218 } 1219 1220 if (accb == aha->recovery_accb) { 1221 /* 1222 * The recovery ACCB does not have a CCB associated 1223 * with it, so short circuit the normal error handling. 1224 * We now traverse our list of pending CCBs and process 1225 * any that were terminated by the recovery CCBs action. 1226 * We also reinstate timeouts for all remaining, pending, 1227 * CCBs. 1228 */ 1229 struct cam_path *path; 1230 struct ccb_hdr *ccb_h; 1231 cam_status error; 1232 1233 /* Notify all clients that a BDR occured */ 1234 error = xpt_create_path(&path, /*periph*/NULL, 1235 cam_sim_path(aha->sim), accb->hccb.target, 1236 CAM_LUN_WILDCARD); 1237 1238 if (error == CAM_REQ_CMP) 1239 xpt_async(AC_SENT_BDR, path, NULL); 1240 1241 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1242 while (ccb_h != NULL) { 1243 struct aha_ccb *pending_accb; 1244 1245 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1246 if (pending_accb->hccb.target == accb->hccb.target) { 1247 pending_accb->hccb.ahastat = AHASTAT_HA_BDR; 1248 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1249 ahadone(aha, pending_accb, AMBI_ERROR); 1250 } else { 1251 ccb_h->timeout_ch = timeout(ahatimeout, 1252 (caddr_t)pending_accb, 1253 (ccb_h->timeout * hz) / 1000); 1254 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1255 } 1256 } 1257 device_printf(aha->dev, "No longer in timeout\n"); 1258 return; 1259 } 1260 1261 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1262 1263 switch (comp_code) { 1264 case AMBI_FREE: 1265 device_printf(aha->dev, 1266 "ahadone - CCB completed with free status!\n"); 1267 break; 1268 case AMBI_NOT_FOUND: 1269 device_printf(aha->dev, 1270 "ahadone - CCB Abort failed to find CCB\n"); 1271 break; 1272 case AMBI_ABORT: 1273 case AMBI_ERROR: 1274 /* An error occured */ 1275 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1276 csio->resid = 0; 1277 else 1278 csio->resid = aha_a24tou(accb->hccb.data_len); 1279 switch(accb->hccb.ahastat) { 1280 case AHASTAT_DATARUN_ERROR: 1281 { 1282 if (csio->resid <= 0) { 1283 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1284 break; 1285 } 1286 /* FALLTHROUGH */ 1287 } 1288 case AHASTAT_NOERROR: 1289 csio->scsi_status = accb->hccb.sdstat; 1290 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1291 switch(csio->scsi_status) { 1292 case SCSI_STATUS_CHECK_COND: 1293 case SCSI_STATUS_CMD_TERMINATED: 1294 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1295 /* 1296 * The aha writes the sense data at different 1297 * offsets based on the scsi cmd len 1298 */ 1299 bcopy((caddr_t) &accb->hccb.scsi_cdb + 1300 accb->hccb.cmd_len, 1301 (caddr_t) &csio->sense_data, 1302 accb->hccb.sense_len); 1303 break; 1304 default: 1305 break; 1306 case SCSI_STATUS_OK: 1307 csio->ccb_h.status = CAM_REQ_CMP; 1308 break; 1309 } 1310 break; 1311 case AHASTAT_SELTIMEOUT: 1312 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1313 break; 1314 case AHASTAT_UNEXPECTED_BUSFREE: 1315 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1316 break; 1317 case AHASTAT_INVALID_PHASE: 1318 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1319 break; 1320 case AHASTAT_INVALID_ACTION_CODE: 1321 panic("%s: Inavlid Action code", aha_name(aha)); 1322 break; 1323 case AHASTAT_INVALID_OPCODE: 1324 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1325 panic("%s: Invalid CCB Opcode %x hccb = %p", 1326 aha_name(aha), accb->hccb.opcode, 1327 &accb->hccb); 1328 device_printf(aha->dev, 1329 "AHA-1540A compensation failed\n"); 1330 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1331 csio->ccb_h.status = CAM_REQUEUE_REQ; 1332 break; 1333 case AHASTAT_LINKED_CCB_LUN_MISMATCH: 1334 /* We don't even support linked commands... */ 1335 panic("%s: Linked CCB Lun Mismatch", aha_name(aha)); 1336 break; 1337 case AHASTAT_INVALID_CCB_OR_SG_PARAM: 1338 panic("%s: Invalid CCB or SG list", aha_name(aha)); 1339 break; 1340 case AHASTAT_HA_SCSI_BUS_RESET: 1341 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1342 != CAM_CMD_TIMEOUT) 1343 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1344 break; 1345 case AHASTAT_HA_BDR: 1346 if ((accb->flags & ACCB_DEVICE_RESET) == 0) 1347 csio->ccb_h.status = CAM_BDR_SENT; 1348 else 1349 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1350 break; 1351 } 1352 if (csio->ccb_h.status != CAM_REQ_CMP) { 1353 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1354 csio->ccb_h.status |= CAM_DEV_QFRZN; 1355 } 1356 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1357 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1358 ahafreeccb(aha, accb); 1359 xpt_done(ccb); 1360 break; 1361 case AMBI_OK: 1362 /* All completed without incident */ 1363 /* XXX DO WE NEED TO COPY SENSE BYTES HERE???? XXX */ 1364 /* I don't think so since it works???? */ 1365 ccb->ccb_h.status |= CAM_REQ_CMP; 1366 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1367 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1368 ahafreeccb(aha, accb); 1369 xpt_done(ccb); 1370 break; 1371 } 1372} 1373 1374static int 1375ahareset(struct aha_softc* aha, int hard_reset) 1376{ 1377 struct ccb_hdr *ccb_h; 1378 u_int status; 1379 u_int timeout; 1380 uint8_t reset_type; 1381 1382 if (hard_reset != 0) 1383 reset_type = HARD_RESET; 1384 else 1385 reset_type = SOFT_RESET; 1386 aha_outb(aha, CONTROL_REG, reset_type); 1387 1388 /* Wait 5sec. for Diagnostic start */ 1389 timeout = 5 * 10000; 1390 while (--timeout) { 1391 status = aha_inb(aha, STATUS_REG); 1392 if ((status & DIAG_ACTIVE) != 0) 1393 break; 1394 DELAY(100); 1395 } 1396 if (timeout == 0) { 1397 PRVERB((aha->dev, "ahareset - Diagnostic Active failed to " 1398 "assert. status = %#x\n", status)); 1399 return (ETIMEDOUT); 1400 } 1401 1402 /* Wait 10sec. for Diagnostic end */ 1403 timeout = 10 * 10000; 1404 while (--timeout) { 1405 status = aha_inb(aha, STATUS_REG); 1406 if ((status & DIAG_ACTIVE) == 0) 1407 break; 1408 DELAY(100); 1409 } 1410 if (timeout == 0) { 1411 panic("%s: ahareset - Diagnostic Active failed to drop. " 1412 "status = 0x%x\n", aha_name(aha), status); 1413 return (ETIMEDOUT); 1414 } 1415 1416 /* Wait for the host adapter to become ready or report a failure */ 1417 timeout = 10000; 1418 while (--timeout) { 1419 status = aha_inb(aha, STATUS_REG); 1420 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1421 break; 1422 DELAY(100); 1423 } 1424 if (timeout == 0) { 1425 device_printf(aha->dev, "ahareset - Host adapter failed to " 1426 "come ready. status = 0x%x\n", status); 1427 return (ETIMEDOUT); 1428 } 1429 1430 /* If the diagnostics failed, tell the user */ 1431 if ((status & DIAG_FAIL) != 0 1432 || (status & HA_READY) == 0) { 1433 device_printf(aha->dev, "ahareset - Adapter failed diag\n"); 1434 1435 if ((status & DATAIN_REG_READY) != 0) 1436 device_printf(aha->dev, "ahareset - Host Adapter " 1437 "Error code = 0x%x\n", aha_inb(aha, DATAIN_REG)); 1438 return (ENXIO); 1439 } 1440 1441 /* If we've attached to the XPT, tell it about the event */ 1442 if (aha->path != NULL) 1443 xpt_async(AC_BUS_RESET, aha->path, NULL); 1444 1445 /* 1446 * Perform completion processing for all outstanding CCBs. 1447 */ 1448 while ((ccb_h = LIST_FIRST(&aha->pending_ccbs)) != NULL) { 1449 struct aha_ccb *pending_accb; 1450 1451 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1452 pending_accb->hccb.ahastat = AHASTAT_HA_SCSI_BUS_RESET; 1453 ahadone(aha, pending_accb, AMBI_ERROR); 1454 } 1455 1456 /* If we've allocated mailboxes, initialize them */ 1457 /* Must be done after we've aborted our queue, or aha_cmd fails */ 1458 if (aha->init_level > 4) 1459 ahainitmboxes(aha); 1460 1461 return (0); 1462} 1463 1464/* 1465 * Send a command to the adapter. 1466 */ 1467int 1468aha_cmd(struct aha_softc *aha, aha_op_t opcode, uint8_t *params, 1469 u_int param_len, uint8_t *reply_data, u_int reply_len, 1470 u_int cmd_timeout) 1471{ 1472 u_int timeout; 1473 u_int status; 1474 u_int saved_status; 1475 u_int intstat; 1476 u_int reply_buf_size; 1477 int s; 1478 int cmd_complete; 1479 int error; 1480 1481 /* No data returned to start */ 1482 reply_buf_size = reply_len; 1483 reply_len = 0; 1484 intstat = 0; 1485 cmd_complete = 0; 1486 saved_status = 0; 1487 error = 0; 1488 1489 /* 1490 * All commands except for the "start mailbox" and the "enable 1491 * outgoing mailbox read interrupt" commands cannot be issued 1492 * while there are pending transactions. Freeze our SIMQ 1493 * and wait for all completions to occur if necessary. 1494 */ 1495 timeout = 10000; 1496 s = splcam(); 1497 while (LIST_FIRST(&aha->pending_ccbs) != NULL && --timeout) { 1498 /* Fire the interrupt handler in case interrupts are blocked */ 1499 aha_intr(aha); 1500 splx(s); 1501 DELAY(10); 1502 s = splcam(); 1503 } 1504 splx(s); 1505 1506 if (timeout == 0) { 1507 device_printf(aha->dev, 1508 "aha_cmd: Timeout waiting for adapter idle\n"); 1509 return (ETIMEDOUT); 1510 } 1511 aha->command_cmp = 0; 1512 /* 1513 * Wait up to 10 sec. for the adapter to become 1514 * ready to accept commands. 1515 */ 1516 timeout = 100000; 1517 while (--timeout) { 1518 status = aha_inb(aha, STATUS_REG); 1519 if ((status & HA_READY) != 0 && (status & CMD_REG_BUSY) == 0) 1520 break; 1521 /* 1522 * Throw away any pending data which may be 1523 * left over from earlier commands that we 1524 * timedout on. 1525 */ 1526 if ((status & DATAIN_REG_READY) != 0) 1527 (void)aha_inb(aha, DATAIN_REG); 1528 DELAY(100); 1529 } 1530 if (timeout == 0) { 1531 device_printf(aha->dev, "aha_cmd: Timeout waiting for adapter" 1532 " ready, status = 0x%x\n", status); 1533 return (ETIMEDOUT); 1534 } 1535 1536 /* 1537 * Send the opcode followed by any necessary parameter bytes. 1538 */ 1539 aha_outb(aha, COMMAND_REG, opcode); 1540 1541 /* 1542 * Wait for up to 1sec to get the parameter list sent 1543 */ 1544 timeout = 10000; 1545 while (param_len && --timeout) { 1546 DELAY(100); 1547 s = splcam(); 1548 status = aha_inb(aha, STATUS_REG); 1549 intstat = aha_inb(aha, INTSTAT_REG); 1550 splx(s); 1551 1552 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1553 == (INTR_PENDING|CMD_COMPLETE)) { 1554 saved_status = status; 1555 cmd_complete = 1; 1556 break; 1557 } 1558 1559 if (aha->command_cmp != 0) { 1560 saved_status = aha->latched_status; 1561 cmd_complete = 1; 1562 break; 1563 } 1564 if ((status & DATAIN_REG_READY) != 0) 1565 break; 1566 if ((status & CMD_REG_BUSY) == 0) { 1567 aha_outb(aha, COMMAND_REG, *params++); 1568 param_len--; 1569 timeout = 10000; 1570 } 1571 } 1572 if (timeout == 0) { 1573 device_printf(aha->dev, "aha_cmd: Timeout sending parameters, " 1574 "status = 0x%x\n", status); 1575 error = ETIMEDOUT; 1576 } 1577 1578 /* 1579 * For all other commands, we wait for any output data 1580 * and the final comand completion interrupt. 1581 */ 1582 while (cmd_complete == 0 && --cmd_timeout) { 1583 1584 s = splcam(); 1585 status = aha_inb(aha, STATUS_REG); 1586 intstat = aha_inb(aha, INTSTAT_REG); 1587 splx(s); 1588 1589 if (aha->command_cmp != 0) { 1590 cmd_complete = 1; 1591 saved_status = aha->latched_status; 1592 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1593 == (INTR_PENDING|CMD_COMPLETE)) { 1594 /* 1595 * Our poll (in case interrupts are blocked) 1596 * saw the CMD_COMPLETE interrupt. 1597 */ 1598 cmd_complete = 1; 1599 saved_status = status; 1600 } 1601 if ((status & DATAIN_REG_READY) != 0) { 1602 uint8_t data; 1603 1604 data = aha_inb(aha, DATAIN_REG); 1605 if (reply_len < reply_buf_size) { 1606 *reply_data++ = data; 1607 } else { 1608 device_printf(aha->dev, 1609 "aha_cmd - Discarded reply data " 1610 "byte for opcode 0x%x\n", opcode); 1611 } 1612 /* 1613 * Reset timeout to ensure at least a second 1614 * between response bytes. 1615 */ 1616 cmd_timeout = MAX(cmd_timeout, 10000); 1617 reply_len++; 1618 } 1619 DELAY(100); 1620 } 1621 if (cmd_timeout == 0) { 1622 device_printf(aha->dev, "aha_cmd: Timeout: status = 0x%x, " 1623 "intstat = 0x%x, reply_len = %d\n", status, intstat, 1624 reply_len); 1625 return (ETIMEDOUT); 1626 } 1627 1628 /* 1629 * Clear any pending interrupts. Block interrupts so our 1630 * interrupt handler is not re-entered. 1631 */ 1632 s = splcam(); 1633 aha_intr(aha); 1634 splx(s); 1635 1636 if (error != 0) 1637 return (error); 1638 1639 /* 1640 * If the command was rejected by the controller, tell the caller. 1641 */ 1642 if ((saved_status & CMD_INVALID) != 0) { 1643 PRVERB((aha->dev, "Invalid Command 0x%x\n", opcode)); 1644 /* 1645 * Some early adapters may not recover properly from 1646 * an invalid command. If it appears that the controller 1647 * has wedged (i.e. status was not cleared by our interrupt 1648 * reset above), perform a soft reset. 1649 */ 1650 DELAY(1000); 1651 status = aha_inb(aha, STATUS_REG); 1652 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 1653 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 1654 || (status & (HA_READY|INIT_REQUIRED)) 1655 != (HA_READY|INIT_REQUIRED)) 1656 ahareset(aha, /*hard_reset*/FALSE); 1657 return (EINVAL); 1658 } 1659 1660 if (param_len > 0) { 1661 /* The controller did not accept the full argument list */ 1662 PRVERB((aha->dev, "Controller did not accept full argument " 1663 "list (%d > 0)\n", param_len)); 1664 return (E2BIG); 1665 } 1666 1667 if (reply_len != reply_buf_size) { 1668 /* Too much or too little data received */ 1669 PRVERB((aha->dev, "data received mismatch (%d != %d)\n", 1670 reply_len, reply_buf_size)); 1671 return (EMSGSIZE); 1672 } 1673 1674 /* We were successful */ 1675 return (0); 1676} 1677 1678static int 1679ahainitmboxes(struct aha_softc *aha) 1680{ 1681 int error; 1682 init_24b_mbox_params_t init_mbox; 1683 1684 bzero(aha->in_boxes, sizeof(aha_mbox_in_t) * aha->num_boxes); 1685 bzero(aha->out_boxes, sizeof(aha_mbox_out_t) * aha->num_boxes); 1686 aha->cur_inbox = aha->in_boxes; 1687 aha->last_inbox = aha->in_boxes + aha->num_boxes - 1; 1688 aha->cur_outbox = aha->out_boxes; 1689 aha->last_outbox = aha->out_boxes + aha->num_boxes - 1; 1690 1691 /* Tell the adapter about them */ 1692 init_mbox.num_mboxes = aha->num_boxes; 1693 ahautoa24(aha->mailbox_physbase, init_mbox.base_addr); 1694 error = aha_cmd(aha, AOP_INITIALIZE_MBOX, (uint8_t *)&init_mbox, 1695 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 1696 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 1697 1698 if (error != 0) 1699 printf("ahainitmboxes: Initialization command failed\n"); 1700 return (error); 1701} 1702 1703/* 1704 * Update the XPT's idea of the negotiated transfer 1705 * parameters for a particular target. 1706 */ 1707static void 1708ahafetchtransinfo(struct aha_softc *aha, struct ccb_trans_settings* cts) 1709{ 1710 setup_data_t setup_info; 1711 u_int target; 1712 u_int targ_offset; 1713 u_int sync_period; 1714 int error; 1715 uint8_t param; 1716 targ_syncinfo_t sync_info; 1717#ifdef CAM_NEW_TRAN_CODE 1718 struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi; 1719#endif 1720 1721 target = cts->ccb_h.target_id; 1722 targ_offset = (target & 0x7); 1723 1724 /* 1725 * Inquire Setup Information. This command retreives 1726 * the sync info for older models. 1727 */ 1728 param = sizeof(setup_info); 1729 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 1730 (uint8_t*)&setup_info, sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 1731 1732 if (error != 0) { 1733 device_printf(aha->dev, 1734 "ahafetchtransinfo - Inquire Setup Info Failed %d\n", 1735 error); 1736 return; 1737 } 1738 1739 sync_info = setup_info.syncinfo[targ_offset]; 1740 1741#ifdef CAM_NEW_TRAN_CODE 1742 if (sync_info.sync == 0) 1743 spi->sync_offset = 0; 1744 else 1745 spi->sync_offset = sync_info.offset; 1746 1747 spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1748 1749 if (aha->boardid >= BOARD_1542CF) 1750 sync_period = 1000; 1751 else 1752 sync_period = 2000; 1753 sync_period += 500 * sync_info.period; 1754 1755 /* Convert ns value to standard SCSI sync rate */ 1756 if (spi->sync_offset != 0) 1757 spi->sync_period = scsi_calc_syncparam(sync_period); 1758 else 1759 spi->sync_period = 0; 1760 1761 spi->valid = CTS_SPI_VALID_SYNC_RATE 1762 | CTS_SPI_VALID_SYNC_OFFSET 1763 | CTS_SPI_VALID_BUS_WIDTH; 1764#else 1765 if (sync_info.sync == 0) 1766 cts->sync_offset = 0; 1767 else 1768 cts->sync_offset = sync_info.offset; 1769 1770 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1771 1772 if (aha->boardid >= BOARD_1542CF) 1773 sync_period = 1000; 1774 else 1775 sync_period = 2000; 1776 sync_period += 500 * sync_info.period; 1777 1778 /* Convert ns value to standard SCSI sync rate */ 1779 if (cts->sync_offset != 0) 1780 cts->sync_period = scsi_calc_syncparam(sync_period); 1781 else 1782 cts->sync_period = 0; 1783 1784 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1785 | CCB_TRANS_SYNC_OFFSET_VALID 1786 | CCB_TRANS_BUS_WIDTH_VALID; 1787#endif 1788 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 1789} 1790 1791static void 1792ahamapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1793{ 1794 struct aha_softc* aha; 1795 1796 aha = (struct aha_softc*)arg; 1797 aha->mailbox_physbase = segs->ds_addr; 1798} 1799 1800static void 1801ahamapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1802{ 1803 struct aha_softc* aha; 1804 1805 aha = (struct aha_softc*)arg; 1806 aha->aha_ccb_physbase = segs->ds_addr; 1807} 1808 1809static void 1810ahamapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1811{ 1812 1813 struct aha_softc* aha; 1814 1815 aha = (struct aha_softc*)arg; 1816 SLIST_FIRST(&aha->sg_maps)->sg_physaddr = segs->ds_addr; 1817} 1818 1819static void 1820ahapoll(struct cam_sim *sim) 1821{ 1822 aha_intr(cam_sim_softc(sim)); 1823} 1824 1825static void 1826ahatimeout(void *arg) 1827{ 1828 struct aha_ccb *accb; 1829 union ccb *ccb; 1830 struct aha_softc *aha; 1831 int s; 1832 uint32_t paddr; 1833 struct ccb_hdr *ccb_h; 1834 1835 accb = (struct aha_ccb *)arg; 1836 ccb = accb->ccb; 1837 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1838 xpt_print_path(ccb->ccb_h.path); 1839 printf("CCB %p - timed out\n", (void *)accb); 1840 1841 s = splcam(); 1842 1843 if ((accb->flags & ACCB_ACTIVE) == 0) { 1844 xpt_print_path(ccb->ccb_h.path); 1845 printf("CCB %p - timed out CCB already completed\n", 1846 (void *)accb); 1847 splx(s); 1848 return; 1849 } 1850 1851 /* 1852 * In order to simplify the recovery process, we ask the XPT 1853 * layer to halt the queue of new transactions and we traverse 1854 * the list of pending CCBs and remove their timeouts. This 1855 * means that the driver attempts to clear only one error 1856 * condition at a time. In general, timeouts that occur 1857 * close together are related anyway, so there is no benefit 1858 * in attempting to handle errors in parrallel. Timeouts will 1859 * be reinstated when the recovery process ends. 1860 */ 1861 if ((accb->flags & ACCB_DEVICE_RESET) == 0) { 1862 if ((accb->flags & ACCB_RELEASE_SIMQ) == 0) { 1863 xpt_freeze_simq(aha->sim, /*count*/1); 1864 accb->flags |= ACCB_RELEASE_SIMQ; 1865 } 1866 1867 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1868 while (ccb_h != NULL) { 1869 struct aha_ccb *pending_accb; 1870 1871 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1872 untimeout(ahatimeout, pending_accb, ccb_h->timeout_ch); 1873 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1874 } 1875 } 1876 1877 if ((accb->flags & ACCB_DEVICE_RESET) != 0 1878 || aha->cur_outbox->action_code != AMBO_FREE) { 1879 /* 1880 * Try a full host adapter/SCSI bus reset. 1881 * We do this only if we have already attempted 1882 * to clear the condition with a BDR, or we cannot 1883 * attempt a BDR for lack of mailbox resources. 1884 */ 1885 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 1886 ahareset(aha, /*hardreset*/TRUE); 1887 device_printf(aha->dev, "No longer in timeout\n"); 1888 } else { 1889 /* 1890 * Send a Bus Device Reset message: 1891 * The target that is holding up the bus may not 1892 * be the same as the one that triggered this timeout 1893 * (different commands have different timeout lengths), 1894 * but we have no way of determining this from our 1895 * timeout handler. Our strategy here is to queue a 1896 * BDR message to the target of the timed out command. 1897 * If this fails, we'll get another timeout 2 seconds 1898 * later which will attempt a bus reset. 1899 */ 1900 accb->flags |= ACCB_DEVICE_RESET; 1901 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 2 * hz); 1902 aha->recovery_accb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 1903 1904 /* No Data Transfer */ 1905 aha->recovery_accb->hccb.datain = TRUE; 1906 aha->recovery_accb->hccb.dataout = TRUE; 1907 aha->recovery_accb->hccb.ahastat = 0; 1908 aha->recovery_accb->hccb.sdstat = 0; 1909 aha->recovery_accb->hccb.target = ccb->ccb_h.target_id; 1910 1911 /* Tell the adapter about this command */ 1912 paddr = ahaccbvtop(aha, aha->recovery_accb); 1913 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1914 aha->cur_outbox->action_code = AMBO_START; 1915 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1916 ahanextoutbox(aha); 1917 } 1918 1919 splx(s); 1920} 1921 1922int 1923aha_detach(struct aha_softc *aha) 1924{ 1925 xpt_async(AC_LOST_DEVICE, aha->path, NULL); 1926 xpt_free_path(aha->path); 1927 xpt_bus_deregister(cam_sim_path(aha->sim)); 1928 cam_sim_free(aha->sim, /*free_devq*/TRUE); 1929 return (0); 1930} 1931