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sys/dev/aha/aha.c
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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: releng/6.4/sys/dev/aha/aha.c 165194 2006-12-14 02:57:07Z 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/module.h> 70 #include <sys/mutex.h> 71 72 #include <machine/bus.h> 73 74 #include <cam/cam.h> 75 #include <cam/cam_ccb.h> 76 #include <cam/cam_sim.h> 77 #include <cam/cam_xpt_sim.h> 78 #include <cam/cam_debug.h> 79 80 #include <cam/scsi/scsi_message.h> 81 82 #include <dev/aha/ahareg.h> 83 84 #define PRVERB(x) do { if (bootverbose) device_printf x; } while (0) 85 86 /* Macro to determine that a rev is potentially a new valid one 87 * so that the driver doesn't keep breaking on new revs as it 88 * did for the CF and CP. 89 */ 90 #define PROBABLY_NEW_BOARD(REV) (REV > 0x43 && REV < 0x56) 91 92 /* MailBox Management functions */ 93 static __inline void ahanextinbox(struct aha_softc *aha); 94 static __inline void ahanextoutbox(struct aha_softc *aha); 95 96 #define aha_name(aha) device_get_nameunit(aha->dev) 97 98 static __inline void 99 ahanextinbox(struct aha_softc *aha) 100 { 101 if (aha->cur_inbox == aha->last_inbox) 102 aha->cur_inbox = aha->in_boxes; 103 else 104 aha->cur_inbox++; 105 } 106 107 static __inline void 108 ahanextoutbox(struct aha_softc *aha) 109 { 110 if (aha->cur_outbox == aha->last_outbox) 111 aha->cur_outbox = aha->out_boxes; 112 else 113 aha->cur_outbox++; 114 } 115 116 #define ahautoa24(u,s3) \ 117 (s3)[0] = ((u) >> 16) & 0xff; \ 118 (s3)[1] = ((u) >> 8) & 0xff; \ 119 (s3)[2] = (u) & 0xff; 120 121 #define aha_a24tou(s3) \ 122 (((s3)[0] << 16) | ((s3)[1] << 8) | (s3)[2]) 123 124 /* CCB Mangement functions */ 125 static __inline uint32_t ahaccbvtop(struct aha_softc *aha, 126 struct aha_ccb *accb); 127 static __inline struct aha_ccb* ahaccbptov(struct aha_softc *aha, 128 uint32_t ccb_addr); 129 130 static __inline uint32_t 131 ahaccbvtop(struct aha_softc *aha, struct aha_ccb *accb) 132 { 133 return (aha->aha_ccb_physbase 134 + (uint32_t)((caddr_t)accb - (caddr_t)aha->aha_ccb_array)); 135 } 136 static __inline struct aha_ccb * 137 ahaccbptov(struct aha_softc *aha, uint32_t ccb_addr) 138 { 139 return (aha->aha_ccb_array + 140 + ((struct aha_ccb*)(uintptr_t)ccb_addr - 141 (struct aha_ccb*)(uintptr_t)aha->aha_ccb_physbase)); 142 } 143 144 static struct aha_ccb* ahagetccb(struct aha_softc *aha); 145 static __inline void ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb); 146 static void ahaallocccbs(struct aha_softc *aha); 147 static bus_dmamap_callback_t ahaexecuteccb; 148 static void ahadone(struct aha_softc *aha, struct aha_ccb *accb, 149 aha_mbi_comp_code_t comp_code); 150 151 /* Host adapter command functions */ 152 static int ahareset(struct aha_softc* aha, int hard_reset); 153 154 /* Initialization functions */ 155 static int ahainitmboxes(struct aha_softc *aha); 156 static bus_dmamap_callback_t ahamapmboxes; 157 static bus_dmamap_callback_t ahamapccbs; 158 static bus_dmamap_callback_t ahamapsgs; 159 160 /* Transfer Negotiation Functions */ 161 static void ahafetchtransinfo(struct aha_softc *aha, 162 struct ccb_trans_settings *cts); 163 164 /* CAM SIM entry points */ 165 #define ccb_accb_ptr spriv_ptr0 166 #define ccb_aha_ptr spriv_ptr1 167 static void ahaaction(struct cam_sim *sim, union ccb *ccb); 168 static void ahapoll(struct cam_sim *sim); 169 170 /* Our timeout handler */ 171 static timeout_t ahatimeout; 172 173 /* Exported functions */ 174 void 175 aha_alloc(struct aha_softc *aha, int unit, bus_space_tag_t tag, 176 bus_space_handle_t bsh) 177 { 178 179 SLIST_INIT(&aha->free_aha_ccbs); 180 LIST_INIT(&aha->pending_ccbs); 181 SLIST_INIT(&aha->sg_maps); 182 aha->unit = unit; 183 aha->tag = tag; 184 aha->bsh = bsh; 185 aha->ccb_sg_opcode = INITIATOR_SG_CCB_WRESID; 186 aha->ccb_ccb_opcode = INITIATOR_CCB_WRESID; 187 } 188 189 void 190 aha_free(struct aha_softc *aha) 191 { 192 switch (aha->init_level) { 193 default: 194 case 8: 195 { 196 struct sg_map_node *sg_map; 197 198 while ((sg_map = SLIST_FIRST(&aha->sg_maps))!= NULL) { 199 SLIST_REMOVE_HEAD(&aha->sg_maps, links); 200 bus_dmamap_unload(aha->sg_dmat, sg_map->sg_dmamap); 201 bus_dmamem_free(aha->sg_dmat, sg_map->sg_vaddr, 202 sg_map->sg_dmamap); 203 free(sg_map, M_DEVBUF); 204 } 205 bus_dma_tag_destroy(aha->sg_dmat); 206 } 207 case 7: 208 bus_dmamap_unload(aha->ccb_dmat, aha->ccb_dmamap); 209 case 6: 210 bus_dmamap_destroy(aha->ccb_dmat, aha->ccb_dmamap); 211 bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array, 212 aha->ccb_dmamap); 213 case 5: 214 bus_dma_tag_destroy(aha->ccb_dmat); 215 case 4: 216 bus_dmamap_unload(aha->mailbox_dmat, aha->mailbox_dmamap); 217 case 3: 218 bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes, 219 aha->mailbox_dmamap); 220 bus_dmamap_destroy(aha->mailbox_dmat, aha->mailbox_dmamap); 221 case 2: 222 bus_dma_tag_destroy(aha->buffer_dmat); 223 case 1: 224 bus_dma_tag_destroy(aha->mailbox_dmat); 225 case 0: 226 break; 227 } 228 } 229 230 /* 231 * Probe the adapter and verify that the card is an Adaptec. 232 */ 233 int 234 aha_probe(struct aha_softc* aha) 235 { 236 u_int status; 237 u_int intstat; 238 int error; 239 board_id_data_t board_id; 240 241 /* 242 * See if the three I/O ports look reasonable. 243 * Touch the minimal number of registers in the 244 * failure case. 245 */ 246 status = aha_inb(aha, STATUS_REG); 247 if ((status == 0) || 248 (status & (DIAG_ACTIVE|CMD_REG_BUSY | STATUS_REG_RSVD)) != 0) { 249 PRVERB((aha->dev, "status reg test failed %x\n", status)); 250 return (ENXIO); 251 } 252 253 intstat = aha_inb(aha, INTSTAT_REG); 254 if ((intstat & INTSTAT_REG_RSVD) != 0) { 255 PRVERB((aha->dev, "Failed Intstat Reg Test\n")); 256 return (ENXIO); 257 } 258 259 /* 260 * Looking good so far. Final test is to reset the 261 * adapter and fetch the board ID and ensure we aren't 262 * looking at a BusLogic. 263 */ 264 if ((error = ahareset(aha, /*hard_reset*/TRUE)) != 0) { 265 PRVERB((aha->dev, "Failed Reset\n")); 266 return (ENXIO); 267 } 268 269 /* 270 * Get the board ID. We use this to see if we're dealing with 271 * a buslogic card or an aha card (or clone). 272 */ 273 error = aha_cmd(aha, AOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 274 (uint8_t*)&board_id, sizeof(board_id), DEFAULT_CMD_TIMEOUT); 275 if (error != 0) { 276 PRVERB((aha->dev, "INQUIRE failed %x\n", error)); 277 return (ENXIO); 278 } 279 aha->fw_major = board_id.firmware_rev_major; 280 aha->fw_minor = board_id.firmware_rev_minor; 281 aha->boardid = board_id.board_type; 282 283 /* 284 * The Buslogic cards have an id of either 0x41 or 0x42. So 285 * if those come up in the probe, we test the geometry register 286 * of the board. Adaptec boards that are this old will not have 287 * this register, and return 0xff, while buslogic cards will return 288 * something different. 289 * 290 * It appears that for reasons unknow, for the for the 291 * aha-1542B cards, we need to wait a little bit before trying 292 * to read the geometry register. I picked 10ms since we have 293 * reports that a for loop to 1000 did the trick, and this 294 * errs on the side of conservatism. Besides, no one will 295 * notice a 10mS delay here, even the 1542B card users :-) 296 * 297 * Some compatible cards return 0 here. Some cards also 298 * seem to return 0x7f. 299 * 300 * XXX I'm not sure how this will impact other cloned cards 301 * 302 * This really should be replaced with the esetup command, since 303 * that appears to be more reliable. This becomes more and more 304 * true over time as we discover more cards that don't read the 305 * geometry register consistantly. 306 */ 307 if (aha->boardid <= 0x42) { 308 /* Wait 10ms before reading */ 309 DELAY(10000); 310 status = aha_inb(aha, GEOMETRY_REG); 311 if (status != 0xff && status != 0x00 && status != 0x7f) { 312 PRVERB((aha->dev, "Geometry Register test failed %#x\n", 313 status)); 314 return (ENXIO); 315 } 316 } 317 318 return (0); 319 } 320 321 /* 322 * Pull the boards setup information and record it in our softc. 323 */ 324 int 325 aha_fetch_adapter_info(struct aha_softc *aha) 326 { 327 setup_data_t setup_info; 328 config_data_t config_data; 329 uint8_t length_param; 330 int error; 331 struct aha_extbios extbios; 332 333 switch (aha->boardid) { 334 case BOARD_1540_16HEAD_BIOS: 335 snprintf(aha->model, sizeof(aha->model), "1540 16 head BIOS"); 336 break; 337 case BOARD_1540_64HEAD_BIOS: 338 snprintf(aha->model, sizeof(aha->model), "1540 64 head BIOS"); 339 break; 340 case BOARD_1542: 341 snprintf(aha->model, sizeof(aha->model), "1540/1542 64 head BIOS"); 342 break; 343 case BOARD_1640: 344 snprintf(aha->model, sizeof(aha->model), "1640"); 345 break; 346 case BOARD_1740: 347 snprintf(aha->model, sizeof(aha->model), "1740A/1742A/1744"); 348 break; 349 case BOARD_1542C: 350 snprintf(aha->model, sizeof(aha->model), "1542C"); 351 break; 352 case BOARD_1542CF: 353 snprintf(aha->model, sizeof(aha->model), "1542CF"); 354 break; 355 case BOARD_1542CP: 356 snprintf(aha->model, sizeof(aha->model), "1542CP"); 357 break; 358 default: 359 snprintf(aha->model, sizeof(aha->model), "Unknown"); 360 break; 361 } 362 /* 363 * If we are a new type of 1542 board (anything newer than a 1542C) 364 * then disable the extended bios so that the 365 * mailbox interface is unlocked. 366 * This is also true for the 1542B Version 3.20. First Adaptec 367 * board that supports >1Gb drives. 368 * No need to check the extended bios flags as some of the 369 * extensions that cause us problems are not flagged in that byte. 370 */ 371 if (PROBABLY_NEW_BOARD(aha->boardid) || 372 (aha->boardid == 0x41 373 && aha->fw_major == 0x31 && 374 aha->fw_minor >= 0x34)) { 375 error = aha_cmd(aha, AOP_RETURN_EXT_BIOS_INFO, NULL, 376 /*paramlen*/0, (u_char *)&extbios, sizeof(extbios), 377 DEFAULT_CMD_TIMEOUT); 378 if (error != 0) { 379 device_printf(aha->dev, 380 "AOP_RETURN_EXT_BIOS_INFO - Failed."); 381 return (error); 382 } 383 error = aha_cmd(aha, AOP_MBOX_IF_ENABLE, (uint8_t *)&extbios, 384 /*paramlen*/2, NULL, 0, DEFAULT_CMD_TIMEOUT); 385 if (error != 0) { 386 device_printf(aha->dev, "AOP_MBOX_IF_ENABLE - Failed."); 387 return (error); 388 } 389 } 390 if (aha->boardid < 0x41) 391 device_printf(aha->dev, "Warning: aha-1542A won't work.\n"); 392 393 aha->max_sg = 17; /* Need >= 17 to do 64k I/O */ 394 aha->diff_bus = 0; 395 aha->extended_lun = 0; 396 aha->extended_trans = 0; 397 aha->max_ccbs = 16; 398 /* Determine Sync/Wide/Disc settings */ 399 length_param = sizeof(setup_info); 400 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, &length_param, 401 /*paramlen*/1, (uint8_t*)&setup_info, sizeof(setup_info), 402 DEFAULT_CMD_TIMEOUT); 403 if (error != 0) { 404 device_printf(aha->dev, "aha_fetch_adapter_info - Failed " 405 "Get Setup Info\n"); 406 return (error); 407 } 408 if (setup_info.initiate_sync != 0) { 409 aha->sync_permitted = ALL_TARGETS; 410 } 411 aha->disc_permitted = ALL_TARGETS; 412 413 /* We need as many mailboxes as we can have ccbs */ 414 aha->num_boxes = aha->max_ccbs; 415 416 /* Determine our SCSI ID */ 417 error = aha_cmd(aha, AOP_INQUIRE_CONFIG, NULL, /*parmlen*/0, 418 (uint8_t*)&config_data, sizeof(config_data), DEFAULT_CMD_TIMEOUT); 419 if (error != 0) { 420 device_printf(aha->dev, 421 "aha_fetch_adapter_info - Failed Get Config\n"); 422 return (error); 423 } 424 aha->scsi_id = config_data.scsi_id; 425 return (0); 426 } 427 428 /* 429 * Start the board, ready for normal operation 430 */ 431 int 432 aha_init(struct aha_softc* aha) 433 { 434 /* Announce the Adapter */ 435 device_printf(aha->dev, "AHA-%s FW Rev. %c.%c (ID=%x) ", 436 aha->model, aha->fw_major, aha->fw_minor, aha->boardid); 437 438 if (aha->diff_bus != 0) 439 printf("Diff "); 440 441 printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", aha->scsi_id, 442 aha->max_ccbs); 443 444 /* 445 * Create our DMA tags. These tags define the kinds of device 446 * accessible memory allocations and memory mappings we will 447 * need to perform during normal operation. 448 * 449 * Unless we need to further restrict the allocation, we rely 450 * on the restrictions of the parent dmat, hence the common 451 * use of MAXADDR and MAXSIZE. 452 */ 453 454 /* DMA tag for mapping buffers into device visible space. */ 455 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 456 /* alignment */ 1, 457 /* boundary */ 0, 458 /* lowaddr */ BUS_SPACE_MAXADDR, 459 /* highaddr */ BUS_SPACE_MAXADDR, 460 /* filter */ NULL, 461 /* filterarg */ NULL, 462 /* maxsize */ MAXBSIZE, 463 /* nsegments */ AHA_NSEG, 464 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 465 /* flags */ BUS_DMA_ALLOCNOW, 466 /* lockfunc */ busdma_lock_mutex, 467 /* lockarg */ &Giant, 468 &aha->buffer_dmat) != 0) { 469 goto error_exit; 470 } 471 472 aha->init_level++; 473 /* DMA tag for our mailboxes */ 474 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 475 /* alignment */ 1, 476 /* boundary */ 0, 477 /* lowaddr */ BUS_SPACE_MAXADDR, 478 /* highaddr */ BUS_SPACE_MAXADDR, 479 /* filter */ NULL, 480 /* filterarg */ NULL, 481 /* maxsize */ aha->num_boxes * 482 (sizeof(aha_mbox_in_t) + 483 sizeof(aha_mbox_out_t)), 484 /* nsegments */ 1, 485 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 486 /* flags */ 0, 487 /* lockfunc */ busdma_lock_mutex, 488 /* lockarg */ &Giant, 489 &aha->mailbox_dmat) != 0) { 490 goto error_exit; 491 } 492 493 aha->init_level++; 494 495 /* Allocation for our mailboxes */ 496 if (bus_dmamem_alloc(aha->mailbox_dmat, (void **)&aha->out_boxes, 497 BUS_DMA_NOWAIT, &aha->mailbox_dmamap) != 0) 498 goto error_exit; 499 500 aha->init_level++; 501 502 /* And permanently map them */ 503 bus_dmamap_load(aha->mailbox_dmat, aha->mailbox_dmamap, 504 aha->out_boxes, aha->num_boxes * (sizeof(aha_mbox_in_t) + 505 sizeof(aha_mbox_out_t)), ahamapmboxes, aha, /*flags*/0); 506 507 aha->init_level++; 508 509 aha->in_boxes = (aha_mbox_in_t *)&aha->out_boxes[aha->num_boxes]; 510 511 ahainitmboxes(aha); 512 513 /* DMA tag for our ccb structures */ 514 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 515 /* alignment */ 1, 516 /* boundary */ 0, 517 /* lowaddr */ BUS_SPACE_MAXADDR, 518 /* highaddr */ BUS_SPACE_MAXADDR, 519 /* filter */ NULL, 520 /* filterarg */ NULL, 521 /* maxsize */ aha->max_ccbs * 522 sizeof(struct aha_ccb), 523 /* nsegments */ 1, 524 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 525 /* flags */ 0, 526 /* lockfunc */ busdma_lock_mutex, 527 /* lockarg */ &Giant, 528 &aha->ccb_dmat) != 0) { 529 goto error_exit; 530 } 531 532 aha->init_level++; 533 534 /* Allocation for our ccbs */ 535 if (bus_dmamem_alloc(aha->ccb_dmat, (void **)&aha->aha_ccb_array, 536 BUS_DMA_NOWAIT, &aha->ccb_dmamap) != 0) 537 goto error_exit; 538 539 aha->init_level++; 540 541 /* And permanently map them */ 542 bus_dmamap_load(aha->ccb_dmat, aha->ccb_dmamap, aha->aha_ccb_array, 543 aha->max_ccbs * sizeof(struct aha_ccb), ahamapccbs, aha, /*flags*/0); 544 545 aha->init_level++; 546 547 /* DMA tag for our S/G structures. We allocate in page sized chunks */ 548 if (bus_dma_tag_create( /* parent */ aha->parent_dmat, 549 /* alignment */ 1, 550 /* boundary */ 0, 551 /* lowaddr */ BUS_SPACE_MAXADDR, 552 /* highaddr */ BUS_SPACE_MAXADDR, 553 /* filter */ NULL, 554 /* filterarg */ NULL, 555 /* maxsize */ PAGE_SIZE, 556 /* nsegments */ 1, 557 /* maxsegsz */ BUS_SPACE_MAXSIZE_24BIT, 558 /* flags */ 0, 559 /* lockfunc */ busdma_lock_mutex, 560 /* lockarg */ &Giant, 561 &aha->sg_dmat) != 0) 562 goto error_exit; 563 564 aha->init_level++; 565 566 /* Perform initial CCB allocation */ 567 bzero(aha->aha_ccb_array, aha->max_ccbs * sizeof(struct aha_ccb)); 568 ahaallocccbs(aha); 569 570 if (aha->num_ccbs == 0) { 571 device_printf(aha->dev, 572 "aha_init - Unable to allocate initial ccbs\n"); 573 goto error_exit; 574 } 575 576 /* 577 * Note that we are going and return (to probe) 578 */ 579 return (0); 580 581 error_exit: 582 583 return (ENXIO); 584 } 585 586 int 587 aha_attach(struct aha_softc *aha) 588 { 589 int tagged_dev_openings; 590 struct cam_devq *devq; 591 592 /* 593 * We don't do tagged queueing, since the aha cards don't 594 * support it. 595 */ 596 tagged_dev_openings = 0; 597 598 /* 599 * Create the device queue for our SIM. 600 */ 601 devq = cam_simq_alloc(aha->max_ccbs - 1); 602 if (devq == NULL) 603 return (ENOMEM); 604 605 /* 606 * Construct our SIM entry 607 */ 608 aha->sim = cam_sim_alloc(ahaaction, ahapoll, "aha", aha, aha->unit, 2, 609 tagged_dev_openings, devq); 610 if (aha->sim == NULL) { 611 cam_simq_free(devq); 612 return (ENOMEM); 613 } 614 if (xpt_bus_register(aha->sim, 0) != CAM_SUCCESS) { 615 cam_sim_free(aha->sim, /*free_devq*/TRUE); 616 return (ENXIO); 617 } 618 if (xpt_create_path(&aha->path, /*periph*/NULL, cam_sim_path(aha->sim), 619 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 620 xpt_bus_deregister(cam_sim_path(aha->sim)); 621 cam_sim_free(aha->sim, /*free_devq*/TRUE); 622 return (ENXIO); 623 } 624 625 return (0); 626 } 627 628 static void 629 ahaallocccbs(struct aha_softc *aha) 630 { 631 struct aha_ccb *next_ccb; 632 struct sg_map_node *sg_map; 633 bus_addr_t physaddr; 634 aha_sg_t *segs; 635 int newcount; 636 int i; 637 638 next_ccb = &aha->aha_ccb_array[aha->num_ccbs]; 639 640 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 641 642 if (sg_map == NULL) 643 return; 644 645 /* Allocate S/G space for the next batch of CCBS */ 646 if (bus_dmamem_alloc(aha->sg_dmat, (void **)&sg_map->sg_vaddr, 647 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 648 free(sg_map, M_DEVBUF); 649 return; 650 } 651 652 SLIST_INSERT_HEAD(&aha->sg_maps, sg_map, links); 653 654 bus_dmamap_load(aha->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 655 PAGE_SIZE, ahamapsgs, aha, /*flags*/0); 656 657 segs = sg_map->sg_vaddr; 658 physaddr = sg_map->sg_physaddr; 659 660 newcount = (PAGE_SIZE / (AHA_NSEG * sizeof(aha_sg_t))); 661 for (i = 0; aha->num_ccbs < aha->max_ccbs && i < newcount; i++) { 662 int error; 663 664 next_ccb->sg_list = segs; 665 next_ccb->sg_list_phys = physaddr; 666 next_ccb->flags = ACCB_FREE; 667 error = bus_dmamap_create(aha->buffer_dmat, /*flags*/0, 668 &next_ccb->dmamap); 669 if (error != 0) 670 break; 671 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, next_ccb, links); 672 segs += AHA_NSEG; 673 physaddr += (AHA_NSEG * sizeof(aha_sg_t)); 674 next_ccb++; 675 aha->num_ccbs++; 676 } 677 678 /* Reserve a CCB for error recovery */ 679 if (aha->recovery_accb == NULL) { 680 aha->recovery_accb = SLIST_FIRST(&aha->free_aha_ccbs); 681 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 682 } 683 } 684 685 static __inline void 686 ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb) 687 { 688 int s; 689 690 s = splcam(); 691 if ((accb->flags & ACCB_ACTIVE) != 0) 692 LIST_REMOVE(&accb->ccb->ccb_h, sim_links.le); 693 if (aha->resource_shortage != 0 694 && (accb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 695 accb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 696 aha->resource_shortage = FALSE; 697 } 698 accb->flags = ACCB_FREE; 699 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, accb, links); 700 aha->active_ccbs--; 701 splx(s); 702 } 703 704 static struct aha_ccb* 705 ahagetccb(struct aha_softc *aha) 706 { 707 struct aha_ccb* accb; 708 int s; 709 710 s = splcam(); 711 if ((accb = SLIST_FIRST(&aha->free_aha_ccbs)) != NULL) { 712 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 713 aha->active_ccbs++; 714 } else if (aha->num_ccbs < aha->max_ccbs) { 715 ahaallocccbs(aha); 716 accb = SLIST_FIRST(&aha->free_aha_ccbs); 717 if (accb == NULL) 718 device_printf(aha->dev, "Can't malloc ACCB\n"); 719 else { 720 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 721 aha->active_ccbs++; 722 } 723 } 724 splx(s); 725 726 return (accb); 727 } 728 729 static void 730 ahaaction(struct cam_sim *sim, union ccb *ccb) 731 { 732 struct aha_softc *aha; 733 int s; 734 735 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahaaction\n")); 736 737 aha = (struct aha_softc *)cam_sim_softc(sim); 738 739 switch (ccb->ccb_h.func_code) { 740 /* Common cases first */ 741 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 742 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ { 743 struct aha_ccb *accb; 744 struct aha_hccb *hccb; 745 746 /* 747 * Get an accb to use. 748 */ 749 if ((accb = ahagetccb(aha)) == NULL) { 750 s = splcam(); 751 aha->resource_shortage = TRUE; 752 splx(s); 753 xpt_freeze_simq(aha->sim, /*count*/1); 754 ccb->ccb_h.status = CAM_REQUEUE_REQ; 755 xpt_done(ccb); 756 return; 757 } 758 hccb = &accb->hccb; 759 760 /* 761 * So we can find the ACCB when an abort is requested 762 */ 763 accb->ccb = ccb; 764 ccb->ccb_h.ccb_accb_ptr = accb; 765 ccb->ccb_h.ccb_aha_ptr = aha; 766 767 /* 768 * Put all the arguments for the xfer in the accb 769 */ 770 hccb->target = ccb->ccb_h.target_id; 771 hccb->lun = ccb->ccb_h.target_lun; 772 hccb->ahastat = 0; 773 hccb->sdstat = 0; 774 775 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 776 struct ccb_scsiio *csio; 777 struct ccb_hdr *ccbh; 778 779 csio = &ccb->csio; 780 ccbh = &csio->ccb_h; 781 hccb->opcode = aha->ccb_ccb_opcode; 782 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) != 0; 783 hccb->dataout = (ccb->ccb_h.flags & CAM_DIR_OUT) != 0; 784 hccb->cmd_len = csio->cdb_len; 785 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 786 ccb->ccb_h.status = CAM_REQ_INVALID; 787 ahafreeccb(aha, accb); 788 xpt_done(ccb); 789 return; 790 } 791 hccb->sense_len = csio->sense_len; 792 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 793 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 794 bcopy(csio->cdb_io.cdb_ptr, 795 hccb->scsi_cdb, hccb->cmd_len); 796 } else { 797 /* I guess I could map it in... */ 798 ccbh->status = CAM_REQ_INVALID; 799 ahafreeccb(aha, accb); 800 xpt_done(ccb); 801 return; 802 } 803 } else { 804 bcopy(csio->cdb_io.cdb_bytes, 805 hccb->scsi_cdb, hccb->cmd_len); 806 } 807 /* 808 * If we have any data to send with this command, 809 * map it into bus space. 810 */ 811 /* Only use S/G if there is a transfer */ 812 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 813 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 814 /* 815 * We've been given a pointer 816 * to a single buffer. 817 */ 818 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 819 int error; 820 821 s = splsoftvm(); 822 error = bus_dmamap_load( 823 aha->buffer_dmat, 824 accb->dmamap, 825 csio->data_ptr, 826 csio->dxfer_len, 827 ahaexecuteccb, 828 accb, 829 /*flags*/0); 830 if (error == EINPROGRESS) { 831 /* 832 * So as to maintain 833 * ordering, freeze the 834 * controller queue 835 * until our mapping is 836 * returned. 837 */ 838 xpt_freeze_simq(aha->sim, 839 1); 840 csio->ccb_h.status |= 841 CAM_RELEASE_SIMQ; 842 } 843 splx(s); 844 } else { 845 struct bus_dma_segment seg; 846 847 /* Pointer to physical buffer */ 848 seg.ds_addr = 849 (bus_addr_t)csio->data_ptr; 850 seg.ds_len = csio->dxfer_len; 851 ahaexecuteccb(accb, &seg, 1, 0); 852 } 853 } else { 854 struct bus_dma_segment *segs; 855 856 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 857 panic("ahaaction - Physical " 858 "segment pointers " 859 "unsupported"); 860 861 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 862 panic("ahaaction - Virtual " 863 "segment addresses " 864 "unsupported"); 865 866 /* Just use the segments provided */ 867 segs = (struct bus_dma_segment *) 868 csio->data_ptr; 869 ahaexecuteccb(accb, segs, 870 csio->sglist_cnt, 0); 871 } 872 } else { 873 ahaexecuteccb(accb, NULL, 0, 0); 874 } 875 } else { 876 hccb->opcode = INITIATOR_BUS_DEV_RESET; 877 /* No data transfer */ 878 hccb->datain = TRUE; 879 hccb->dataout = TRUE; 880 hccb->cmd_len = 0; 881 hccb->sense_len = 0; 882 ahaexecuteccb(accb, NULL, 0, 0); 883 } 884 break; 885 } 886 case XPT_EN_LUN: /* Enable LUN as a target */ 887 case XPT_TARGET_IO: /* Execute target I/O request */ 888 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 889 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 890 case XPT_ABORT: /* Abort the specified CCB */ 891 /* XXX Implement */ 892 ccb->ccb_h.status = CAM_REQ_INVALID; 893 xpt_done(ccb); 894 break; 895 case XPT_SET_TRAN_SETTINGS: 896 /* XXX Implement */ 897 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 898 xpt_done(ccb); 899 break; 900 case XPT_GET_TRAN_SETTINGS: 901 /* Get default/user set transfer settings for the target */ 902 { 903 struct ccb_trans_settings *cts; 904 u_int target_mask; 905 906 cts = &ccb->cts; 907 target_mask = 0x01 << ccb->ccb_h.target_id; 908 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 909 cts->flags = 0; 910 if ((aha->disc_permitted & target_mask) != 0) 911 cts->flags |= CCB_TRANS_DISC_ENB; 912 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 913 if ((aha->sync_permitted & target_mask) != 0) { 914 if (aha->boardid >= BOARD_1542CF) 915 cts->sync_period = 25; 916 else 917 cts->sync_period = 50; 918 } else 919 cts->sync_period = 0; 920 921 if (cts->sync_period != 0) 922 cts->sync_offset = 15; 923 924 cts->valid = CCB_TRANS_SYNC_RATE_VALID 925 | CCB_TRANS_SYNC_OFFSET_VALID 926 | CCB_TRANS_BUS_WIDTH_VALID 927 | CCB_TRANS_DISC_VALID 928 | CCB_TRANS_TQ_VALID; 929 } else { 930 ahafetchtransinfo(aha, cts); 931 } 932 933 ccb->ccb_h.status = CAM_REQ_CMP; 934 xpt_done(ccb); 935 break; 936 } 937 case XPT_CALC_GEOMETRY: 938 { 939 struct ccb_calc_geometry *ccg; 940 uint32_t size_mb; 941 uint32_t secs_per_cylinder; 942 943 ccg = &ccb->ccg; 944 size_mb = ccg->volume_size 945 / ((1024L * 1024L) / ccg->block_size); 946 if (size_mb >= 1024 && (aha->extended_trans != 0)) { 947 if (size_mb >= 2048) { 948 ccg->heads = 255; 949 ccg->secs_per_track = 63; 950 } else { 951 ccg->heads = 128; 952 ccg->secs_per_track = 32; 953 } 954 } else { 955 ccg->heads = 64; 956 ccg->secs_per_track = 32; 957 } 958 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 959 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 960 ccb->ccb_h.status = CAM_REQ_CMP; 961 xpt_done(ccb); 962 break; 963 } 964 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 965 ahareset(aha, /*hardreset*/TRUE); 966 ccb->ccb_h.status = CAM_REQ_CMP; 967 xpt_done(ccb); 968 break; 969 case XPT_TERM_IO: /* Terminate the I/O process */ 970 /* XXX Implement */ 971 ccb->ccb_h.status = CAM_REQ_INVALID; 972 xpt_done(ccb); 973 break; 974 case XPT_PATH_INQ: /* Path routing inquiry */ 975 { 976 struct ccb_pathinq *cpi = &ccb->cpi; 977 978 cpi->version_num = 1; /* XXX??? */ 979 cpi->hba_inquiry = PI_SDTR_ABLE; 980 cpi->target_sprt = 0; 981 cpi->hba_misc = 0; 982 cpi->hba_eng_cnt = 0; 983 cpi->max_target = 7; 984 cpi->max_lun = 7; 985 cpi->initiator_id = aha->scsi_id; 986 cpi->bus_id = cam_sim_bus(sim); 987 cpi->base_transfer_speed = 3300; 988 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 989 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 990 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 991 cpi->unit_number = cam_sim_unit(sim); 992 cpi->ccb_h.status = CAM_REQ_CMP; 993 xpt_done(ccb); 994 break; 995 } 996 default: 997 ccb->ccb_h.status = CAM_REQ_INVALID; 998 xpt_done(ccb); 999 break; 1000 } 1001 } 1002 1003 static void 1004 ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1005 { 1006 struct aha_ccb *accb; 1007 union ccb *ccb; 1008 struct aha_softc *aha; 1009 int s; 1010 uint32_t paddr; 1011 1012 accb = (struct aha_ccb *)arg; 1013 ccb = accb->ccb; 1014 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1015 1016 if (error != 0) { 1017 if (error != EFBIG) 1018 device_printf(aha->dev, 1019 "Unexepected error 0x%x returned from " 1020 "bus_dmamap_load\n", error); 1021 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1022 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1023 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1024 } 1025 ahafreeccb(aha, accb); 1026 xpt_done(ccb); 1027 return; 1028 } 1029 1030 if (nseg != 0) { 1031 aha_sg_t *sg; 1032 bus_dma_segment_t *end_seg; 1033 bus_dmasync_op_t op; 1034 1035 end_seg = dm_segs + nseg; 1036 1037 /* Copy the segments into our SG list */ 1038 sg = accb->sg_list; 1039 while (dm_segs < end_seg) { 1040 ahautoa24(dm_segs->ds_len, sg->len); 1041 ahautoa24(dm_segs->ds_addr, sg->addr); 1042 sg++; 1043 dm_segs++; 1044 } 1045 1046 if (nseg > 1) { 1047 accb->hccb.opcode = aha->ccb_sg_opcode; 1048 ahautoa24((sizeof(aha_sg_t) * nseg), 1049 accb->hccb.data_len); 1050 ahautoa24(accb->sg_list_phys, accb->hccb.data_addr); 1051 } else { 1052 bcopy(accb->sg_list->len, accb->hccb.data_len, 3); 1053 bcopy(accb->sg_list->addr, accb->hccb.data_addr, 3); 1054 } 1055 1056 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1057 op = BUS_DMASYNC_PREREAD; 1058 else 1059 op = BUS_DMASYNC_PREWRITE; 1060 1061 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1062 1063 } else { 1064 accb->hccb.opcode = INITIATOR_CCB; 1065 ahautoa24(0, accb->hccb.data_len); 1066 ahautoa24(0, accb->hccb.data_addr); 1067 } 1068 1069 s = splcam(); 1070 1071 /* 1072 * Last time we need to check if this CCB needs to 1073 * be aborted. 1074 */ 1075 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1076 if (nseg != 0) 1077 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1078 ahafreeccb(aha, accb); 1079 xpt_done(ccb); 1080 splx(s); 1081 return; 1082 } 1083 1084 accb->flags = ACCB_ACTIVE; 1085 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1086 LIST_INSERT_HEAD(&aha->pending_ccbs, &ccb->ccb_h, sim_links.le); 1087 1088 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 1089 (ccb->ccb_h.timeout * hz) / 1000); 1090 1091 /* Tell the adapter about this command */ 1092 if (aha->cur_outbox->action_code != AMBO_FREE) { 1093 /* 1094 * We should never encounter a busy mailbox. 1095 * If we do, warn the user, and treat it as 1096 * a resource shortage. If the controller is 1097 * hung, one of the pending transactions will 1098 * timeout causing us to start recovery operations. 1099 */ 1100 device_printf(aha->dev, 1101 "Encountered busy mailbox with %d out of %d " 1102 "commands active!!!", aha->active_ccbs, aha->max_ccbs); 1103 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1104 if (nseg != 0) 1105 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1106 ahafreeccb(aha, accb); 1107 aha->resource_shortage = TRUE; 1108 xpt_freeze_simq(aha->sim, /*count*/1); 1109 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1110 xpt_done(ccb); 1111 return; 1112 } 1113 paddr = ahaccbvtop(aha, accb); 1114 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1115 aha->cur_outbox->action_code = AMBO_START; 1116 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1117 1118 ahanextoutbox(aha); 1119 splx(s); 1120 } 1121 1122 void 1123 aha_intr(void *arg) 1124 { 1125 struct aha_softc *aha; 1126 u_int intstat; 1127 uint32_t paddr; 1128 1129 aha = (struct aha_softc *)arg; 1130 while (((intstat = aha_inb(aha, INTSTAT_REG)) & INTR_PENDING) != 0) { 1131 if ((intstat & CMD_COMPLETE) != 0) { 1132 aha->latched_status = aha_inb(aha, STATUS_REG); 1133 aha->command_cmp = TRUE; 1134 } 1135 1136 aha_outb(aha, CONTROL_REG, RESET_INTR); 1137 1138 if ((intstat & IMB_LOADED) != 0) { 1139 while (aha->cur_inbox->comp_code != AMBI_FREE) { 1140 paddr = aha_a24tou(aha->cur_inbox->ccb_addr); 1141 ahadone(aha, ahaccbptov(aha, paddr), 1142 aha->cur_inbox->comp_code); 1143 aha->cur_inbox->comp_code = AMBI_FREE; 1144 ahanextinbox(aha); 1145 } 1146 } 1147 1148 if ((intstat & SCSI_BUS_RESET) != 0) { 1149 ahareset(aha, /*hardreset*/FALSE); 1150 } 1151 } 1152 } 1153 1154 static void 1155 ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_code) 1156 { 1157 union ccb *ccb; 1158 struct ccb_scsiio *csio; 1159 1160 ccb = accb->ccb; 1161 csio = &accb->ccb->csio; 1162 1163 if ((accb->flags & ACCB_ACTIVE) == 0) { 1164 device_printf(aha->dev, 1165 "ahadone - Attempt to free non-active ACCB %p\n", 1166 (void *)accb); 1167 return; 1168 } 1169 1170 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1171 bus_dmasync_op_t op; 1172 1173 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1174 op = BUS_DMASYNC_POSTREAD; 1175 else 1176 op = BUS_DMASYNC_POSTWRITE; 1177 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1178 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1179 } 1180 1181 if (accb == aha->recovery_accb) { 1182 /* 1183 * The recovery ACCB does not have a CCB associated 1184 * with it, so short circuit the normal error handling. 1185 * We now traverse our list of pending CCBs and process 1186 * any that were terminated by the recovery CCBs action. 1187 * We also reinstate timeouts for all remaining, pending, 1188 * CCBs. 1189 */ 1190 struct cam_path *path; 1191 struct ccb_hdr *ccb_h; 1192 cam_status error; 1193 1194 /* Notify all clients that a BDR occured */ 1195 error = xpt_create_path(&path, /*periph*/NULL, 1196 cam_sim_path(aha->sim), accb->hccb.target, 1197 CAM_LUN_WILDCARD); 1198 1199 if (error == CAM_REQ_CMP) 1200 xpt_async(AC_SENT_BDR, path, NULL); 1201 1202 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1203 while (ccb_h != NULL) { 1204 struct aha_ccb *pending_accb; 1205 1206 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1207 if (pending_accb->hccb.target == accb->hccb.target) { 1208 pending_accb->hccb.ahastat = AHASTAT_HA_BDR; 1209 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1210 ahadone(aha, pending_accb, AMBI_ERROR); 1211 } else { 1212 ccb_h->timeout_ch = timeout(ahatimeout, 1213 (caddr_t)pending_accb, 1214 (ccb_h->timeout * hz) / 1000); 1215 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1216 } 1217 } 1218 device_printf(aha->dev, "No longer in timeout\n"); 1219 return; 1220 } 1221 1222 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1223 1224 switch (comp_code) { 1225 case AMBI_FREE: 1226 device_printf(aha->dev, 1227 "ahadone - CCB completed with free status!\n"); 1228 break; 1229 case AMBI_NOT_FOUND: 1230 device_printf(aha->dev, 1231 "ahadone - CCB Abort failed to find CCB\n"); 1232 break; 1233 case AMBI_ABORT: 1234 case AMBI_ERROR: 1235 /* An error occured */ 1236 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1237 csio->resid = 0; 1238 else 1239 csio->resid = aha_a24tou(accb->hccb.data_len); 1240 switch(accb->hccb.ahastat) { 1241 case AHASTAT_DATARUN_ERROR: 1242 { 1243 if (csio->resid <= 0) { 1244 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1245 break; 1246 } 1247 /* FALLTHROUGH */ 1248 } 1249 case AHASTAT_NOERROR: 1250 csio->scsi_status = accb->hccb.sdstat; 1251 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1252 switch(csio->scsi_status) { 1253 case SCSI_STATUS_CHECK_COND: 1254 case SCSI_STATUS_CMD_TERMINATED: 1255 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1256 /* 1257 * The aha writes the sense data at different 1258 * offsets based on the scsi cmd len 1259 */ 1260 bcopy((caddr_t) &accb->hccb.scsi_cdb + 1261 accb->hccb.cmd_len, 1262 (caddr_t) &csio->sense_data, 1263 accb->hccb.sense_len); 1264 break; 1265 default: 1266 break; 1267 case SCSI_STATUS_OK: 1268 csio->ccb_h.status = CAM_REQ_CMP; 1269 break; 1270 } 1271 break; 1272 case AHASTAT_SELTIMEOUT: 1273 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1274 break; 1275 case AHASTAT_UNEXPECTED_BUSFREE: 1276 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1277 break; 1278 case AHASTAT_INVALID_PHASE: 1279 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1280 break; 1281 case AHASTAT_INVALID_ACTION_CODE: 1282 panic("%s: Inavlid Action code", aha_name(aha)); 1283 break; 1284 case AHASTAT_INVALID_OPCODE: 1285 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1286 panic("%s: Invalid CCB Opcode %x hccb = %p", 1287 aha_name(aha), accb->hccb.opcode, 1288 &accb->hccb); 1289 device_printf(aha->dev, 1290 "AHA-1540A compensation failed\n"); 1291 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1292 csio->ccb_h.status = CAM_REQUEUE_REQ; 1293 break; 1294 case AHASTAT_LINKED_CCB_LUN_MISMATCH: 1295 /* We don't even support linked commands... */ 1296 panic("%s: Linked CCB Lun Mismatch", aha_name(aha)); 1297 break; 1298 case AHASTAT_INVALID_CCB_OR_SG_PARAM: 1299 panic("%s: Invalid CCB or SG list", aha_name(aha)); 1300 break; 1301 case AHASTAT_HA_SCSI_BUS_RESET: 1302 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1303 != CAM_CMD_TIMEOUT) 1304 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1305 break; 1306 case AHASTAT_HA_BDR: 1307 if ((accb->flags & ACCB_DEVICE_RESET) == 0) 1308 csio->ccb_h.status = CAM_BDR_SENT; 1309 else 1310 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1311 break; 1312 } 1313 if (csio->ccb_h.status != CAM_REQ_CMP) { 1314 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1315 csio->ccb_h.status |= CAM_DEV_QFRZN; 1316 } 1317 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1318 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1319 ahafreeccb(aha, accb); 1320 xpt_done(ccb); 1321 break; 1322 case AMBI_OK: 1323 /* All completed without incident */ 1324 /* XXX DO WE NEED TO COPY SENSE BYTES HERE???? XXX */ 1325 /* I don't think so since it works???? */ 1326 ccb->ccb_h.status |= CAM_REQ_CMP; 1327 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1328 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1329 ahafreeccb(aha, accb); 1330 xpt_done(ccb); 1331 break; 1332 } 1333 } 1334 1335 static int 1336 ahareset(struct aha_softc* aha, int hard_reset) 1337 { 1338 struct ccb_hdr *ccb_h; 1339 u_int status; 1340 u_int timeout; 1341 uint8_t reset_type; 1342 1343 if (hard_reset != 0) 1344 reset_type = HARD_RESET; 1345 else 1346 reset_type = SOFT_RESET; 1347 aha_outb(aha, CONTROL_REG, reset_type); 1348 1349 /* Wait 5sec. for Diagnostic start */ 1350 timeout = 5 * 10000; 1351 while (--timeout) { 1352 status = aha_inb(aha, STATUS_REG); 1353 if ((status & DIAG_ACTIVE) != 0) 1354 break; 1355 DELAY(100); 1356 } 1357 if (timeout == 0) { 1358 PRVERB((aha->dev, "ahareset - Diagnostic Active failed to " 1359 "assert. status = %#x\n", status)); 1360 return (ETIMEDOUT); 1361 } 1362 1363 /* Wait 10sec. for Diagnostic end */ 1364 timeout = 10 * 10000; 1365 while (--timeout) { 1366 status = aha_inb(aha, STATUS_REG); 1367 if ((status & DIAG_ACTIVE) == 0) 1368 break; 1369 DELAY(100); 1370 } 1371 if (timeout == 0) { 1372 panic("%s: ahareset - Diagnostic Active failed to drop. " 1373 "status = 0x%x\n", aha_name(aha), status); 1374 return (ETIMEDOUT); 1375 } 1376 1377 /* Wait for the host adapter to become ready or report a failure */ 1378 timeout = 10000; 1379 while (--timeout) { 1380 status = aha_inb(aha, STATUS_REG); 1381 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1382 break; 1383 DELAY(100); 1384 } 1385 if (timeout == 0) { 1386 device_printf(aha->dev, "ahareset - Host adapter failed to " 1387 "come ready. status = 0x%x\n", status); 1388 return (ETIMEDOUT); 1389 } 1390 1391 /* If the diagnostics failed, tell the user */ 1392 if ((status & DIAG_FAIL) != 0 1393 || (status & HA_READY) == 0) { 1394 device_printf(aha->dev, "ahareset - Adapter failed diag\n"); 1395 1396 if ((status & DATAIN_REG_READY) != 0) 1397 device_printf(aha->dev, "ahareset - Host Adapter " 1398 "Error code = 0x%x\n", aha_inb(aha, DATAIN_REG)); 1399 return (ENXIO); 1400 } 1401 1402 /* If we've attached to the XPT, tell it about the event */ 1403 if (aha->path != NULL) 1404 xpt_async(AC_BUS_RESET, aha->path, NULL); 1405 1406 /* 1407 * Perform completion processing for all outstanding CCBs. 1408 */ 1409 while ((ccb_h = LIST_FIRST(&aha->pending_ccbs)) != NULL) { 1410 struct aha_ccb *pending_accb; 1411 1412 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1413 pending_accb->hccb.ahastat = AHASTAT_HA_SCSI_BUS_RESET; 1414 ahadone(aha, pending_accb, AMBI_ERROR); 1415 } 1416 1417 /* If we've allocated mailboxes, initialize them */ 1418 /* Must be done after we've aborted our queue, or aha_cmd fails */ 1419 if (aha->init_level > 4) 1420 ahainitmboxes(aha); 1421 1422 return (0); 1423 } 1424 1425 /* 1426 * Send a command to the adapter. 1427 */ 1428 int 1429 aha_cmd(struct aha_softc *aha, aha_op_t opcode, uint8_t *params, 1430 u_int param_len, uint8_t *reply_data, u_int reply_len, 1431 u_int cmd_timeout) 1432 { 1433 u_int timeout; 1434 u_int status; 1435 u_int saved_status; 1436 u_int intstat; 1437 u_int reply_buf_size; 1438 int s; 1439 int cmd_complete; 1440 int error; 1441 1442 /* No data returned to start */ 1443 reply_buf_size = reply_len; 1444 reply_len = 0; 1445 intstat = 0; 1446 cmd_complete = 0; 1447 saved_status = 0; 1448 error = 0; 1449 1450 /* 1451 * All commands except for the "start mailbox" and the "enable 1452 * outgoing mailbox read interrupt" commands cannot be issued 1453 * while there are pending transactions. Freeze our SIMQ 1454 * and wait for all completions to occur if necessary. 1455 */ 1456 timeout = 10000; 1457 s = splcam(); 1458 while (LIST_FIRST(&aha->pending_ccbs) != NULL && --timeout) { 1459 /* Fire the interrupt handler in case interrupts are blocked */ 1460 aha_intr(aha); 1461 splx(s); 1462 DELAY(10); 1463 s = splcam(); 1464 } 1465 splx(s); 1466 1467 if (timeout == 0) { 1468 device_printf(aha->dev, 1469 "aha_cmd: Timeout waiting for adapter idle\n"); 1470 return (ETIMEDOUT); 1471 } 1472 aha->command_cmp = 0; 1473 /* 1474 * Wait up to 10 sec. for the adapter to become 1475 * ready to accept commands. 1476 */ 1477 timeout = 100000; 1478 while (--timeout) { 1479 status = aha_inb(aha, STATUS_REG); 1480 if ((status & HA_READY) != 0 && (status & CMD_REG_BUSY) == 0) 1481 break; 1482 /* 1483 * Throw away any pending data which may be 1484 * left over from earlier commands that we 1485 * timedout on. 1486 */ 1487 if ((status & DATAIN_REG_READY) != 0) 1488 (void)aha_inb(aha, DATAIN_REG); 1489 DELAY(100); 1490 } 1491 if (timeout == 0) { 1492 device_printf(aha->dev, "aha_cmd: Timeout waiting for adapter" 1493 " ready, status = 0x%x\n", status); 1494 return (ETIMEDOUT); 1495 } 1496 1497 /* 1498 * Send the opcode followed by any necessary parameter bytes. 1499 */ 1500 aha_outb(aha, COMMAND_REG, opcode); 1501 1502 /* 1503 * Wait for up to 1sec to get the parameter list sent 1504 */ 1505 timeout = 10000; 1506 while (param_len && --timeout) { 1507 DELAY(100); 1508 s = splcam(); 1509 status = aha_inb(aha, STATUS_REG); 1510 intstat = aha_inb(aha, INTSTAT_REG); 1511 splx(s); 1512 1513 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1514 == (INTR_PENDING|CMD_COMPLETE)) { 1515 saved_status = status; 1516 cmd_complete = 1; 1517 break; 1518 } 1519 1520 if (aha->command_cmp != 0) { 1521 saved_status = aha->latched_status; 1522 cmd_complete = 1; 1523 break; 1524 } 1525 if ((status & DATAIN_REG_READY) != 0) 1526 break; 1527 if ((status & CMD_REG_BUSY) == 0) { 1528 aha_outb(aha, COMMAND_REG, *params++); 1529 param_len--; 1530 timeout = 10000; 1531 } 1532 } 1533 if (timeout == 0) { 1534 device_printf(aha->dev, "aha_cmd: Timeout sending parameters, " 1535 "status = 0x%x\n", status); 1536 error = ETIMEDOUT; 1537 } 1538 1539 /* 1540 * For all other commands, we wait for any output data 1541 * and the final comand completion interrupt. 1542 */ 1543 while (cmd_complete == 0 && --cmd_timeout) { 1544 1545 s = splcam(); 1546 status = aha_inb(aha, STATUS_REG); 1547 intstat = aha_inb(aha, INTSTAT_REG); 1548 splx(s); 1549 1550 if (aha->command_cmp != 0) { 1551 cmd_complete = 1; 1552 saved_status = aha->latched_status; 1553 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1554 == (INTR_PENDING|CMD_COMPLETE)) { 1555 /* 1556 * Our poll (in case interrupts are blocked) 1557 * saw the CMD_COMPLETE interrupt. 1558 */ 1559 cmd_complete = 1; 1560 saved_status = status; 1561 } 1562 if ((status & DATAIN_REG_READY) != 0) { 1563 uint8_t data; 1564 1565 data = aha_inb(aha, DATAIN_REG); 1566 if (reply_len < reply_buf_size) { 1567 *reply_data++ = data; 1568 } else { 1569 device_printf(aha->dev, 1570 "aha_cmd - Discarded reply data " 1571 "byte for opcode 0x%x\n", opcode); 1572 } 1573 /* 1574 * Reset timeout to ensure at least a second 1575 * between response bytes. 1576 */ 1577 cmd_timeout = MAX(cmd_timeout, 10000); 1578 reply_len++; 1579 } 1580 DELAY(100); 1581 } 1582 if (cmd_timeout == 0) { 1583 device_printf(aha->dev, "aha_cmd: Timeout: status = 0x%x, " 1584 "intstat = 0x%x, reply_len = %d\n", status, intstat, 1585 reply_len); 1586 return (ETIMEDOUT); 1587 } 1588 1589 /* 1590 * Clear any pending interrupts. Block interrupts so our 1591 * interrupt handler is not re-entered. 1592 */ 1593 s = splcam(); 1594 aha_intr(aha); 1595 splx(s); 1596 1597 if (error != 0) 1598 return (error); 1599 1600 /* 1601 * If the command was rejected by the controller, tell the caller. 1602 */ 1603 if ((saved_status & CMD_INVALID) != 0) { 1604 PRVERB((aha->dev, "Invalid Command 0x%x\n", opcode)); 1605 /* 1606 * Some early adapters may not recover properly from 1607 * an invalid command. If it appears that the controller 1608 * has wedged (i.e. status was not cleared by our interrupt 1609 * reset above), perform a soft reset. 1610 */ 1611 DELAY(1000); 1612 status = aha_inb(aha, STATUS_REG); 1613 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 1614 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 1615 || (status & (HA_READY|INIT_REQUIRED)) 1616 != (HA_READY|INIT_REQUIRED)) 1617 ahareset(aha, /*hard_reset*/FALSE); 1618 return (EINVAL); 1619 } 1620 1621 if (param_len > 0) { 1622 /* The controller did not accept the full argument list */ 1623 PRVERB((aha->dev, "Controller did not accept full argument " 1624 "list (%d > 0)\n", param_len)); 1625 return (E2BIG); 1626 } 1627 1628 if (reply_len != reply_buf_size) { 1629 /* Too much or too little data received */ 1630 PRVERB((aha->dev, "data received mismatch (%d != %d)\n", 1631 reply_len, reply_buf_size)); 1632 return (EMSGSIZE); 1633 } 1634 1635 /* We were successful */ 1636 return (0); 1637 } 1638 1639 static int 1640 ahainitmboxes(struct aha_softc *aha) 1641 { 1642 int error; 1643 init_24b_mbox_params_t init_mbox; 1644 1645 bzero(aha->in_boxes, sizeof(aha_mbox_in_t) * aha->num_boxes); 1646 bzero(aha->out_boxes, sizeof(aha_mbox_out_t) * aha->num_boxes); 1647 aha->cur_inbox = aha->in_boxes; 1648 aha->last_inbox = aha->in_boxes + aha->num_boxes - 1; 1649 aha->cur_outbox = aha->out_boxes; 1650 aha->last_outbox = aha->out_boxes + aha->num_boxes - 1; 1651 1652 /* Tell the adapter about them */ 1653 init_mbox.num_mboxes = aha->num_boxes; 1654 ahautoa24(aha->mailbox_physbase, init_mbox.base_addr); 1655 error = aha_cmd(aha, AOP_INITIALIZE_MBOX, (uint8_t *)&init_mbox, 1656 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 1657 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 1658 1659 if (error != 0) 1660 printf("ahainitmboxes: Initialization command failed\n"); 1661 return (error); 1662 } 1663 1664 /* 1665 * Update the XPT's idea of the negotiated transfer 1666 * parameters for a particular target. 1667 */ 1668 static void 1669 ahafetchtransinfo(struct aha_softc *aha, struct ccb_trans_settings* cts) 1670 { 1671 setup_data_t setup_info; 1672 u_int target; 1673 u_int targ_offset; 1674 u_int sync_period; 1675 int error; 1676 uint8_t param; 1677 targ_syncinfo_t sync_info; 1678 1679 target = cts->ccb_h.target_id; 1680 targ_offset = (target & 0x7); 1681 1682 /* 1683 * Inquire Setup Information. This command retreives 1684 * the sync info for older models. 1685 */ 1686 param = sizeof(setup_info); 1687 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 1688 (uint8_t*)&setup_info, sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 1689 1690 if (error != 0) { 1691 device_printf(aha->dev, 1692 "ahafetchtransinfo - Inquire Setup Info Failed %d\n", 1693 error); 1694 return; 1695 } 1696 1697 sync_info = setup_info.syncinfo[targ_offset]; 1698 1699 if (sync_info.sync == 0) 1700 cts->sync_offset = 0; 1701 else 1702 cts->sync_offset = sync_info.offset; 1703 1704 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1705 1706 if (aha->boardid >= BOARD_1542CF) 1707 sync_period = 1000; 1708 else 1709 sync_period = 2000; 1710 sync_period += 500 * sync_info.period; 1711 1712 /* Convert ns value to standard SCSI sync rate */ 1713 if (cts->sync_offset != 0) 1714 cts->sync_period = scsi_calc_syncparam(sync_period); 1715 else 1716 cts->sync_period = 0; 1717 1718 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1719 | CCB_TRANS_SYNC_OFFSET_VALID 1720 | CCB_TRANS_BUS_WIDTH_VALID; 1721 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 1722 } 1723 1724 static void 1725 ahamapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1726 { 1727 struct aha_softc* aha; 1728 1729 aha = (struct aha_softc*)arg; 1730 aha->mailbox_physbase = segs->ds_addr; 1731 } 1732 1733 static void 1734 ahamapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1735 { 1736 struct aha_softc* aha; 1737 1738 aha = (struct aha_softc*)arg; 1739 aha->aha_ccb_physbase = segs->ds_addr; 1740 } 1741 1742 static void 1743 ahamapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1744 { 1745 1746 struct aha_softc* aha; 1747 1748 aha = (struct aha_softc*)arg; 1749 SLIST_FIRST(&aha->sg_maps)->sg_physaddr = segs->ds_addr; 1750 } 1751 1752 static void 1753 ahapoll(struct cam_sim *sim) 1754 { 1755 aha_intr(cam_sim_softc(sim)); 1756 } 1757 1758 static void 1759 ahatimeout(void *arg) 1760 { 1761 struct aha_ccb *accb; 1762 union ccb *ccb; 1763 struct aha_softc *aha; 1764 int s; 1765 uint32_t paddr; 1766 struct ccb_hdr *ccb_h; 1767 1768 accb = (struct aha_ccb *)arg; 1769 ccb = accb->ccb; 1770 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1771 xpt_print_path(ccb->ccb_h.path); 1772 printf("CCB %p - timed out\n", (void *)accb); 1773 1774 s = splcam(); 1775 1776 if ((accb->flags & ACCB_ACTIVE) == 0) { 1777 xpt_print_path(ccb->ccb_h.path); 1778 printf("CCB %p - timed out CCB already completed\n", 1779 (void *)accb); 1780 splx(s); 1781 return; 1782 } 1783 1784 /* 1785 * In order to simplify the recovery process, we ask the XPT 1786 * layer to halt the queue of new transactions and we traverse 1787 * the list of pending CCBs and remove their timeouts. This 1788 * means that the driver attempts to clear only one error 1789 * condition at a time. In general, timeouts that occur 1790 * close together are related anyway, so there is no benefit 1791 * in attempting to handle errors in parrallel. Timeouts will 1792 * be reinstated when the recovery process ends. 1793 */ 1794 if ((accb->flags & ACCB_DEVICE_RESET) == 0) { 1795 if ((accb->flags & ACCB_RELEASE_SIMQ) == 0) { 1796 xpt_freeze_simq(aha->sim, /*count*/1); 1797 accb->flags |= ACCB_RELEASE_SIMQ; 1798 } 1799 1800 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1801 while (ccb_h != NULL) { 1802 struct aha_ccb *pending_accb; 1803 1804 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1805 untimeout(ahatimeout, pending_accb, ccb_h->timeout_ch); 1806 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1807 } 1808 } 1809 1810 if ((accb->flags & ACCB_DEVICE_RESET) != 0 1811 || aha->cur_outbox->action_code != AMBO_FREE) { 1812 /* 1813 * Try a full host adapter/SCSI bus reset. 1814 * We do this only if we have already attempted 1815 * to clear the condition with a BDR, or we cannot 1816 * attempt a BDR for lack of mailbox resources. 1817 */ 1818 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 1819 ahareset(aha, /*hardreset*/TRUE); 1820 device_printf(aha->dev, "No longer in timeout\n"); 1821 } else { 1822 /* 1823 * Send a Bus Device Reset message: 1824 * The target that is holding up the bus may not 1825 * be the same as the one that triggered this timeout 1826 * (different commands have different timeout lengths), 1827 * but we have no way of determining this from our 1828 * timeout handler. Our strategy here is to queue a 1829 * BDR message to the target of the timed out command. 1830 * If this fails, we'll get another timeout 2 seconds 1831 * later which will attempt a bus reset. 1832 */ 1833 accb->flags |= ACCB_DEVICE_RESET; 1834 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 2 * hz); 1835 aha->recovery_accb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 1836 1837 /* No Data Transfer */ 1838 aha->recovery_accb->hccb.datain = TRUE; 1839 aha->recovery_accb->hccb.dataout = TRUE; 1840 aha->recovery_accb->hccb.ahastat = 0; 1841 aha->recovery_accb->hccb.sdstat = 0; 1842 aha->recovery_accb->hccb.target = ccb->ccb_h.target_id; 1843 1844 /* Tell the adapter about this command */ 1845 paddr = ahaccbvtop(aha, aha->recovery_accb); 1846 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1847 aha->cur_outbox->action_code = AMBO_START; 1848 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1849 ahanextoutbox(aha); 1850 } 1851 1852 splx(s); 1853 } 1854 1855 int 1856 aha_detach(struct aha_softc *aha) 1857 { 1858 xpt_async(AC_LOST_DEVICE, aha->path, NULL); 1859 xpt_free_path(aha->path); 1860 xpt_bus_deregister(cam_sim_path(aha->sim)); 1861 cam_sim_free(aha->sim, /*free_devq*/TRUE); 1862 return (0); 1863 } 1864 MODULE_DEPEND(aha, cam, 1, 1, 1);
Cache object: eb4c7bbdf53489f4cc8eb1d1a7b4f332
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