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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 1542B/1542C/1542CF/1542CP aha_isa.c 6 * aha 1640 aha_mca.c 7 * 8 * Copyright (c) 1998 M. Warner Losh. 9 * All Rights Reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification, immediately at the beginning of the file. 17 * 2. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * Derived from bt.c written by: 33 * 34 * Copyright (c) 1998 Justin T. Gibbs. 35 * All rights reserved. 36 * 37 * Redistribution and use in source and binary forms, with or without 38 * modification, are permitted provided that the following conditions 39 * are met: 40 * 1. Redistributions of source code must retain the above copyright 41 * notice, this list of conditions, and the following disclaimer, 42 * without modification, immediately at the beginning of the file. 43 * 2. The name of the author may not be used to endorse or promote products 44 * derived from this software without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 50 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 */ 58 59 #include <sys/cdefs.h> 60 __FBSDID("$FreeBSD: releng/5.2/sys/dev/aha/aha.c 122597 2003-11-13 04:14:53Z imp $"); 61 62 #include <sys/param.h> 63 #include <sys/bus.h> 64 #include <sys/systm.h> 65 #include <sys/malloc.h> 66 #include <sys/kernel.h> 67 #include <sys/lock.h> 68 #include <sys/mutex.h> 69 70 #include <machine/bus_pio.h> 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 */ 92 static __inline void ahanextinbox(struct aha_softc *aha); 93 static __inline void ahanextoutbox(struct aha_softc *aha); 94 95 #define aha_name(aha) device_get_nameunit(aha->dev) 96 97 static __inline void 98 ahanextinbox(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 } 105 106 static __inline void 107 ahanextoutbox(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 */ 124 static __inline uint32_t ahaccbvtop(struct aha_softc *aha, 125 struct aha_ccb *accb); 126 static __inline struct aha_ccb* ahaccbptov(struct aha_softc *aha, 127 uint32_t ccb_addr); 128 129 static __inline uint32_t 130 ahaccbvtop(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 } 135 static __inline struct aha_ccb * 136 ahaccbptov(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 } 142 143 static struct aha_ccb* ahagetccb(struct aha_softc *aha); 144 static __inline void ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb); 145 static void ahaallocccbs(struct aha_softc *aha); 146 static bus_dmamap_callback_t ahaexecuteccb; 147 static void ahadone(struct aha_softc *aha, struct aha_ccb *accb, 148 aha_mbi_comp_code_t comp_code); 149 150 /* Host adapter command functions */ 151 static int ahareset(struct aha_softc* aha, int hard_reset); 152 153 /* Initialization functions */ 154 static int ahainitmboxes(struct aha_softc *aha); 155 static bus_dmamap_callback_t ahamapmboxes; 156 static bus_dmamap_callback_t ahamapccbs; 157 static bus_dmamap_callback_t ahamapsgs; 158 159 /* Transfer Negotiation Functions */ 160 static 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 166 static void ahaaction(struct cam_sim *sim, union ccb *ccb); 167 static void ahapoll(struct cam_sim *sim); 168 169 /* Our timeout handler */ 170 static timeout_t ahatimeout; 171 172 /* Exported functions */ 173 void 174 aha_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 } 187 188 void 189 aha_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 */ 232 int 233 aha_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 */ 323 int 324 aha_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 */ 430 int 431 aha_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); 579 580 error_exit: 581 582 return (ENXIO); 583 } 584 585 int 586 aha_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 } 626 627 static void 628 ahaallocccbs(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 } 683 684 static __inline void 685 ahafreeccb(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 } 702 703 static struct aha_ccb* 704 ahagetccb(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 } 727 728 static void 729 ahaaction(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; 903 u_int target_mask; 904 905 cts = &ccb->cts; 906 target_mask = 0x01 << ccb->ccb_h.target_id; 907 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 908 cts->flags = 0; 909 if ((aha->disc_permitted & target_mask) != 0) 910 cts->flags |= CCB_TRANS_DISC_ENB; 911 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 912 if ((aha->sync_permitted & target_mask) != 0) { 913 if (aha->boardid >= BOARD_1542CF) 914 cts->sync_period = 25; 915 else 916 cts->sync_period = 50; 917 } else 918 cts->sync_period = 0; 919 920 if (cts->sync_period != 0) 921 cts->sync_offset = 15; 922 923 cts->valid = CCB_TRANS_SYNC_RATE_VALID 924 | CCB_TRANS_SYNC_OFFSET_VALID 925 | CCB_TRANS_BUS_WIDTH_VALID 926 | CCB_TRANS_DISC_VALID 927 | CCB_TRANS_TQ_VALID; 928 } else { 929 ahafetchtransinfo(aha, cts); 930 } 931 932 ccb->ccb_h.status = CAM_REQ_CMP; 933 xpt_done(ccb); 934 break; 935 } 936 case XPT_CALC_GEOMETRY: 937 { 938 struct ccb_calc_geometry *ccg; 939 uint32_t size_mb; 940 uint32_t secs_per_cylinder; 941 942 ccg = &ccb->ccg; 943 size_mb = ccg->volume_size 944 / ((1024L * 1024L) / ccg->block_size); 945 if (size_mb >= 1024 && (aha->extended_trans != 0)) { 946 if (size_mb >= 2048) { 947 ccg->heads = 255; 948 ccg->secs_per_track = 63; 949 } else { 950 ccg->heads = 128; 951 ccg->secs_per_track = 32; 952 } 953 } else { 954 ccg->heads = 64; 955 ccg->secs_per_track = 32; 956 } 957 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 958 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 959 ccb->ccb_h.status = CAM_REQ_CMP; 960 xpt_done(ccb); 961 break; 962 } 963 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 964 ahareset(aha, /*hardreset*/TRUE); 965 ccb->ccb_h.status = CAM_REQ_CMP; 966 xpt_done(ccb); 967 break; 968 case XPT_TERM_IO: /* Terminate the I/O process */ 969 /* XXX Implement */ 970 ccb->ccb_h.status = CAM_REQ_INVALID; 971 xpt_done(ccb); 972 break; 973 case XPT_PATH_INQ: /* Path routing inquiry */ 974 { 975 struct ccb_pathinq *cpi = &ccb->cpi; 976 977 cpi->version_num = 1; /* XXX??? */ 978 cpi->hba_inquiry = PI_SDTR_ABLE; 979 cpi->target_sprt = 0; 980 cpi->hba_misc = 0; 981 cpi->hba_eng_cnt = 0; 982 cpi->max_target = 7; 983 cpi->max_lun = 7; 984 cpi->initiator_id = aha->scsi_id; 985 cpi->bus_id = cam_sim_bus(sim); 986 cpi->base_transfer_speed = 3300; 987 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 988 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 989 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 990 cpi->unit_number = cam_sim_unit(sim); 991 cpi->ccb_h.status = CAM_REQ_CMP; 992 xpt_done(ccb); 993 break; 994 } 995 default: 996 ccb->ccb_h.status = CAM_REQ_INVALID; 997 xpt_done(ccb); 998 break; 999 } 1000 } 1001 1002 static void 1003 ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1004 { 1005 struct aha_ccb *accb; 1006 union ccb *ccb; 1007 struct aha_softc *aha; 1008 int s; 1009 uint32_t paddr; 1010 1011 accb = (struct aha_ccb *)arg; 1012 ccb = accb->ccb; 1013 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1014 1015 if (error != 0) { 1016 if (error != EFBIG) 1017 device_printf(aha->dev, 1018 "Unexepected error 0x%x returned from " 1019 "bus_dmamap_load\n", error); 1020 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1021 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1022 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1023 } 1024 ahafreeccb(aha, accb); 1025 xpt_done(ccb); 1026 return; 1027 } 1028 1029 if (nseg != 0) { 1030 aha_sg_t *sg; 1031 bus_dma_segment_t *end_seg; 1032 bus_dmasync_op_t op; 1033 1034 end_seg = dm_segs + nseg; 1035 1036 /* Copy the segments into our SG list */ 1037 sg = accb->sg_list; 1038 while (dm_segs < end_seg) { 1039 ahautoa24(dm_segs->ds_len, sg->len); 1040 ahautoa24(dm_segs->ds_addr, sg->addr); 1041 sg++; 1042 dm_segs++; 1043 } 1044 1045 if (nseg > 1) { 1046 accb->hccb.opcode = aha->ccb_sg_opcode; 1047 ahautoa24((sizeof(aha_sg_t) * nseg), 1048 accb->hccb.data_len); 1049 ahautoa24(accb->sg_list_phys, accb->hccb.data_addr); 1050 } else { 1051 bcopy(accb->sg_list->len, accb->hccb.data_len, 3); 1052 bcopy(accb->sg_list->addr, accb->hccb.data_addr, 3); 1053 } 1054 1055 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1056 op = BUS_DMASYNC_PREREAD; 1057 else 1058 op = BUS_DMASYNC_PREWRITE; 1059 1060 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1061 1062 } else { 1063 accb->hccb.opcode = INITIATOR_CCB; 1064 ahautoa24(0, accb->hccb.data_len); 1065 ahautoa24(0, accb->hccb.data_addr); 1066 } 1067 1068 s = splcam(); 1069 1070 /* 1071 * Last time we need to check if this CCB needs to 1072 * be aborted. 1073 */ 1074 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1075 if (nseg != 0) 1076 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1077 ahafreeccb(aha, accb); 1078 xpt_done(ccb); 1079 splx(s); 1080 return; 1081 } 1082 1083 accb->flags = ACCB_ACTIVE; 1084 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1085 LIST_INSERT_HEAD(&aha->pending_ccbs, &ccb->ccb_h, sim_links.le); 1086 1087 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 1088 (ccb->ccb_h.timeout * hz) / 1000); 1089 1090 /* Tell the adapter about this command */ 1091 if (aha->cur_outbox->action_code != AMBO_FREE) { 1092 /* 1093 * We should never encounter a busy mailbox. 1094 * If we do, warn the user, and treat it as 1095 * a resource shortage. If the controller is 1096 * hung, one of the pending transactions will 1097 * timeout causing us to start recovery operations. 1098 */ 1099 device_printf(aha->dev, 1100 "Encountered busy mailbox with %d out of %d " 1101 "commands active!!!", aha->active_ccbs, aha->max_ccbs); 1102 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1103 if (nseg != 0) 1104 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1105 ahafreeccb(aha, accb); 1106 aha->resource_shortage = TRUE; 1107 xpt_freeze_simq(aha->sim, /*count*/1); 1108 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1109 xpt_done(ccb); 1110 return; 1111 } 1112 paddr = ahaccbvtop(aha, accb); 1113 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1114 aha->cur_outbox->action_code = AMBO_START; 1115 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1116 1117 ahanextoutbox(aha); 1118 splx(s); 1119 } 1120 1121 void 1122 aha_intr(void *arg) 1123 { 1124 struct aha_softc *aha; 1125 u_int intstat; 1126 uint32_t paddr; 1127 1128 aha = (struct aha_softc *)arg; 1129 while (((intstat = aha_inb(aha, INTSTAT_REG)) & INTR_PENDING) != 0) { 1130 if ((intstat & CMD_COMPLETE) != 0) { 1131 aha->latched_status = aha_inb(aha, STATUS_REG); 1132 aha->command_cmp = TRUE; 1133 } 1134 1135 aha_outb(aha, CONTROL_REG, RESET_INTR); 1136 1137 if ((intstat & IMB_LOADED) != 0) { 1138 while (aha->cur_inbox->comp_code != AMBI_FREE) { 1139 paddr = aha_a24tou(aha->cur_inbox->ccb_addr); 1140 ahadone(aha, ahaccbptov(aha, paddr), 1141 aha->cur_inbox->comp_code); 1142 aha->cur_inbox->comp_code = AMBI_FREE; 1143 ahanextinbox(aha); 1144 } 1145 } 1146 1147 if ((intstat & SCSI_BUS_RESET) != 0) { 1148 ahareset(aha, /*hardreset*/FALSE); 1149 } 1150 } 1151 } 1152 1153 static void 1154 ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_code) 1155 { 1156 union ccb *ccb; 1157 struct ccb_scsiio *csio; 1158 1159 ccb = accb->ccb; 1160 csio = &accb->ccb->csio; 1161 1162 if ((accb->flags & ACCB_ACTIVE) == 0) { 1163 device_printf(aha->dev, 1164 "ahadone - Attempt to free non-active ACCB %p\n", 1165 (void *)accb); 1166 return; 1167 } 1168 1169 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1170 bus_dmasync_op_t op; 1171 1172 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1173 op = BUS_DMASYNC_POSTREAD; 1174 else 1175 op = BUS_DMASYNC_POSTWRITE; 1176 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1177 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1178 } 1179 1180 if (accb == aha->recovery_accb) { 1181 /* 1182 * The recovery ACCB does not have a CCB associated 1183 * with it, so short circuit the normal error handling. 1184 * We now traverse our list of pending CCBs and process 1185 * any that were terminated by the recovery CCBs action. 1186 * We also reinstate timeouts for all remaining, pending, 1187 * CCBs. 1188 */ 1189 struct cam_path *path; 1190 struct ccb_hdr *ccb_h; 1191 cam_status error; 1192 1193 /* Notify all clients that a BDR occured */ 1194 error = xpt_create_path(&path, /*periph*/NULL, 1195 cam_sim_path(aha->sim), accb->hccb.target, 1196 CAM_LUN_WILDCARD); 1197 1198 if (error == CAM_REQ_CMP) 1199 xpt_async(AC_SENT_BDR, path, NULL); 1200 1201 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1202 while (ccb_h != NULL) { 1203 struct aha_ccb *pending_accb; 1204 1205 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1206 if (pending_accb->hccb.target == accb->hccb.target) { 1207 pending_accb->hccb.ahastat = AHASTAT_HA_BDR; 1208 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1209 ahadone(aha, pending_accb, AMBI_ERROR); 1210 } else { 1211 ccb_h->timeout_ch = timeout(ahatimeout, 1212 (caddr_t)pending_accb, 1213 (ccb_h->timeout * hz) / 1000); 1214 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1215 } 1216 } 1217 device_printf(aha->dev, "No longer in timeout\n"); 1218 return; 1219 } 1220 1221 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1222 1223 switch (comp_code) { 1224 case AMBI_FREE: 1225 device_printf(aha->dev, 1226 "ahadone - CCB completed with free status!\n"); 1227 break; 1228 case AMBI_NOT_FOUND: 1229 device_printf(aha->dev, 1230 "ahadone - CCB Abort failed to find CCB\n"); 1231 break; 1232 case AMBI_ABORT: 1233 case AMBI_ERROR: 1234 /* An error occured */ 1235 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1236 csio->resid = 0; 1237 else 1238 csio->resid = aha_a24tou(accb->hccb.data_len); 1239 switch(accb->hccb.ahastat) { 1240 case AHASTAT_DATARUN_ERROR: 1241 { 1242 if (csio->resid <= 0) { 1243 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1244 break; 1245 } 1246 /* FALLTHROUGH */ 1247 } 1248 case AHASTAT_NOERROR: 1249 csio->scsi_status = accb->hccb.sdstat; 1250 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1251 switch(csio->scsi_status) { 1252 case SCSI_STATUS_CHECK_COND: 1253 case SCSI_STATUS_CMD_TERMINATED: 1254 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1255 /* 1256 * The aha writes the sense data at different 1257 * offsets based on the scsi cmd len 1258 */ 1259 bcopy((caddr_t) &accb->hccb.scsi_cdb + 1260 accb->hccb.cmd_len, 1261 (caddr_t) &csio->sense_data, 1262 accb->hccb.sense_len); 1263 break; 1264 default: 1265 break; 1266 case SCSI_STATUS_OK: 1267 csio->ccb_h.status = CAM_REQ_CMP; 1268 break; 1269 } 1270 break; 1271 case AHASTAT_SELTIMEOUT: 1272 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1273 break; 1274 case AHASTAT_UNEXPECTED_BUSFREE: 1275 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1276 break; 1277 case AHASTAT_INVALID_PHASE: 1278 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1279 break; 1280 case AHASTAT_INVALID_ACTION_CODE: 1281 panic("%s: Inavlid Action code", aha_name(aha)); 1282 break; 1283 case AHASTAT_INVALID_OPCODE: 1284 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1285 panic("%s: Invalid CCB Opcode %x hccb = %p", 1286 aha_name(aha), accb->hccb.opcode, 1287 &accb->hccb); 1288 device_printf(aha->dev, 1289 "AHA-1540A detected, maybe compensating\n"); 1290 aha->ccb_sg_opcode = INITIATOR_SG_CCB; 1291 aha->ccb_ccb_opcode = INITIATOR_CCB; 1292 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1293 csio->ccb_h.status = CAM_REQUEUE_REQ; 1294 break; 1295 case AHASTAT_LINKED_CCB_LUN_MISMATCH: 1296 /* We don't even support linked commands... */ 1297 panic("%s: Linked CCB Lun Mismatch", aha_name(aha)); 1298 break; 1299 case AHASTAT_INVALID_CCB_OR_SG_PARAM: 1300 panic("%s: Invalid CCB or SG list", aha_name(aha)); 1301 break; 1302 case AHASTAT_HA_SCSI_BUS_RESET: 1303 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1304 != CAM_CMD_TIMEOUT) 1305 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1306 break; 1307 case AHASTAT_HA_BDR: 1308 if ((accb->flags & ACCB_DEVICE_RESET) == 0) 1309 csio->ccb_h.status = CAM_BDR_SENT; 1310 else 1311 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1312 break; 1313 } 1314 if (csio->ccb_h.status != CAM_REQ_CMP) { 1315 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1316 csio->ccb_h.status |= CAM_DEV_QFRZN; 1317 } 1318 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1319 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1320 ahafreeccb(aha, accb); 1321 xpt_done(ccb); 1322 break; 1323 case AMBI_OK: 1324 /* All completed without incident */ 1325 /* XXX DO WE NEED TO COPY SENSE BYTES HERE???? XXX */ 1326 /* I don't think so since it works???? */ 1327 ccb->ccb_h.status |= CAM_REQ_CMP; 1328 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1329 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1330 ahafreeccb(aha, accb); 1331 xpt_done(ccb); 1332 break; 1333 } 1334 } 1335 1336 static int 1337 ahareset(struct aha_softc* aha, int hard_reset) 1338 { 1339 struct ccb_hdr *ccb_h; 1340 u_int status; 1341 u_int timeout; 1342 uint8_t reset_type; 1343 1344 if (hard_reset != 0) 1345 reset_type = HARD_RESET; 1346 else 1347 reset_type = SOFT_RESET; 1348 aha_outb(aha, CONTROL_REG, reset_type); 1349 1350 /* Wait 5sec. for Diagnostic start */ 1351 timeout = 5 * 10000; 1352 while (--timeout) { 1353 status = aha_inb(aha, STATUS_REG); 1354 if ((status & DIAG_ACTIVE) != 0) 1355 break; 1356 DELAY(100); 1357 } 1358 if (timeout == 0) { 1359 PRVERB((aha->dev, "ahareset - Diagnostic Active failed to " 1360 "assert. status = %#x\n", status)); 1361 return (ETIMEDOUT); 1362 } 1363 1364 /* Wait 10sec. for Diagnostic end */ 1365 timeout = 10 * 10000; 1366 while (--timeout) { 1367 status = aha_inb(aha, STATUS_REG); 1368 if ((status & DIAG_ACTIVE) == 0) 1369 break; 1370 DELAY(100); 1371 } 1372 if (timeout == 0) { 1373 panic("%s: ahareset - Diagnostic Active failed to drop. " 1374 "status = 0x%x\n", aha_name(aha), status); 1375 return (ETIMEDOUT); 1376 } 1377 1378 /* Wait for the host adapter to become ready or report a failure */ 1379 timeout = 10000; 1380 while (--timeout) { 1381 status = aha_inb(aha, STATUS_REG); 1382 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1383 break; 1384 DELAY(100); 1385 } 1386 if (timeout == 0) { 1387 device_printf(aha->dev, "ahareset - Host adapter failed to " 1388 "come ready. status = 0x%x\n", status); 1389 return (ETIMEDOUT); 1390 } 1391 1392 /* If the diagnostics failed, tell the user */ 1393 if ((status & DIAG_FAIL) != 0 1394 || (status & HA_READY) == 0) { 1395 device_printf(aha->dev, "ahareset - Adapter failed diag\n"); 1396 1397 if ((status & DATAIN_REG_READY) != 0) 1398 device_printf(aha->dev, "ahareset - Host Adapter " 1399 "Error code = 0x%x\n", aha_inb(aha, DATAIN_REG)); 1400 return (ENXIO); 1401 } 1402 1403 /* If we've attached to the XPT, tell it about the event */ 1404 if (aha->path != NULL) 1405 xpt_async(AC_BUS_RESET, aha->path, NULL); 1406 1407 /* 1408 * Perform completion processing for all outstanding CCBs. 1409 */ 1410 while ((ccb_h = LIST_FIRST(&aha->pending_ccbs)) != NULL) { 1411 struct aha_ccb *pending_accb; 1412 1413 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1414 pending_accb->hccb.ahastat = AHASTAT_HA_SCSI_BUS_RESET; 1415 ahadone(aha, pending_accb, AMBI_ERROR); 1416 } 1417 1418 /* If we've allocated mailboxes, initialize them */ 1419 /* Must be done after we've aborted our queue, or aha_cmd fails */ 1420 if (aha->init_level > 4) 1421 ahainitmboxes(aha); 1422 1423 return (0); 1424 } 1425 1426 /* 1427 * Send a command to the adapter. 1428 */ 1429 int 1430 aha_cmd(struct aha_softc *aha, aha_op_t opcode, uint8_t *params, 1431 u_int param_len, uint8_t *reply_data, u_int reply_len, 1432 u_int cmd_timeout) 1433 { 1434 u_int timeout; 1435 u_int status; 1436 u_int saved_status; 1437 u_int intstat; 1438 u_int reply_buf_size; 1439 int s; 1440 int cmd_complete; 1441 int error; 1442 1443 /* No data returned to start */ 1444 reply_buf_size = reply_len; 1445 reply_len = 0; 1446 intstat = 0; 1447 cmd_complete = 0; 1448 saved_status = 0; 1449 error = 0; 1450 1451 /* 1452 * All commands except for the "start mailbox" and the "enable 1453 * outgoing mailbox read interrupt" commands cannot be issued 1454 * while there are pending transactions. Freeze our SIMQ 1455 * and wait for all completions to occur if necessary. 1456 */ 1457 timeout = 10000; 1458 s = splcam(); 1459 while (LIST_FIRST(&aha->pending_ccbs) != NULL && --timeout) { 1460 /* Fire the interrupt handler in case interrupts are blocked */ 1461 aha_intr(aha); 1462 splx(s); 1463 DELAY(10); 1464 s = splcam(); 1465 } 1466 splx(s); 1467 1468 if (timeout == 0) { 1469 device_printf(aha->dev, 1470 "aha_cmd: Timeout waiting for adapter idle\n"); 1471 return (ETIMEDOUT); 1472 } 1473 aha->command_cmp = 0; 1474 /* 1475 * Wait up to 10 sec. for the adapter to become 1476 * ready to accept commands. 1477 */ 1478 timeout = 100000; 1479 while (--timeout) { 1480 status = aha_inb(aha, STATUS_REG); 1481 if ((status & HA_READY) != 0 && (status & CMD_REG_BUSY) == 0) 1482 break; 1483 /* 1484 * Throw away any pending data which may be 1485 * left over from earlier commands that we 1486 * timedout on. 1487 */ 1488 if ((status & DATAIN_REG_READY) != 0) 1489 (void)aha_inb(aha, DATAIN_REG); 1490 DELAY(100); 1491 } 1492 if (timeout == 0) { 1493 device_printf(aha->dev, "aha_cmd: Timeout waiting for adapter" 1494 " ready, status = 0x%x\n", status); 1495 return (ETIMEDOUT); 1496 } 1497 1498 /* 1499 * Send the opcode followed by any necessary parameter bytes. 1500 */ 1501 aha_outb(aha, COMMAND_REG, opcode); 1502 1503 /* 1504 * Wait for up to 1sec to get the parameter list sent 1505 */ 1506 timeout = 10000; 1507 while (param_len && --timeout) { 1508 DELAY(100); 1509 s = splcam(); 1510 status = aha_inb(aha, STATUS_REG); 1511 intstat = aha_inb(aha, INTSTAT_REG); 1512 splx(s); 1513 1514 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1515 == (INTR_PENDING|CMD_COMPLETE)) { 1516 saved_status = status; 1517 cmd_complete = 1; 1518 break; 1519 } 1520 1521 if (aha->command_cmp != 0) { 1522 saved_status = aha->latched_status; 1523 cmd_complete = 1; 1524 break; 1525 } 1526 if ((status & DATAIN_REG_READY) != 0) 1527 break; 1528 if ((status & CMD_REG_BUSY) == 0) { 1529 aha_outb(aha, COMMAND_REG, *params++); 1530 param_len--; 1531 timeout = 10000; 1532 } 1533 } 1534 if (timeout == 0) { 1535 device_printf(aha->dev, "aha_cmd: Timeout sending parameters, " 1536 "status = 0x%x\n", status); 1537 error = ETIMEDOUT; 1538 } 1539 1540 /* 1541 * For all other commands, we wait for any output data 1542 * and the final comand completion interrupt. 1543 */ 1544 while (cmd_complete == 0 && --cmd_timeout) { 1545 1546 s = splcam(); 1547 status = aha_inb(aha, STATUS_REG); 1548 intstat = aha_inb(aha, INTSTAT_REG); 1549 splx(s); 1550 1551 if (aha->command_cmp != 0) { 1552 cmd_complete = 1; 1553 saved_status = aha->latched_status; 1554 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1555 == (INTR_PENDING|CMD_COMPLETE)) { 1556 /* 1557 * Our poll (in case interrupts are blocked) 1558 * saw the CMD_COMPLETE interrupt. 1559 */ 1560 cmd_complete = 1; 1561 saved_status = status; 1562 } 1563 if ((status & DATAIN_REG_READY) != 0) { 1564 uint8_t data; 1565 1566 data = aha_inb(aha, DATAIN_REG); 1567 if (reply_len < reply_buf_size) { 1568 *reply_data++ = data; 1569 } else { 1570 device_printf(aha->dev, 1571 "aha_cmd - Discarded reply data " 1572 "byte for opcode 0x%x\n", opcode); 1573 } 1574 /* 1575 * Reset timeout to ensure at least a second 1576 * between response bytes. 1577 */ 1578 cmd_timeout = MAX(cmd_timeout, 10000); 1579 reply_len++; 1580 } 1581 DELAY(100); 1582 } 1583 if (cmd_timeout == 0) { 1584 device_printf(aha->dev, "aha_cmd: Timeout: status = 0x%x, " 1585 "intstat = 0x%x, reply_len = %d\n", status, intstat, 1586 reply_len); 1587 return (ETIMEDOUT); 1588 } 1589 1590 /* 1591 * Clear any pending interrupts. Block interrupts so our 1592 * interrupt handler is not re-entered. 1593 */ 1594 s = splcam(); 1595 aha_intr(aha); 1596 splx(s); 1597 1598 if (error != 0) 1599 return (error); 1600 1601 /* 1602 * If the command was rejected by the controller, tell the caller. 1603 */ 1604 if ((saved_status & CMD_INVALID) != 0) { 1605 PRVERB((aha->dev, "Invalid Command 0x%x\n", opcode)); 1606 /* 1607 * Some early adapters may not recover properly from 1608 * an invalid command. If it appears that the controller 1609 * has wedged (i.e. status was not cleared by our interrupt 1610 * reset above), perform a soft reset. 1611 */ 1612 DELAY(1000); 1613 status = aha_inb(aha, STATUS_REG); 1614 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 1615 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 1616 || (status & (HA_READY|INIT_REQUIRED)) 1617 != (HA_READY|INIT_REQUIRED)) 1618 ahareset(aha, /*hard_reset*/FALSE); 1619 return (EINVAL); 1620 } 1621 1622 if (param_len > 0) { 1623 /* The controller did not accept the full argument list */ 1624 PRVERB((aha->dev, "Controller did not accept full argument " 1625 "list (%d > 0)\n", param_len)); 1626 return (E2BIG); 1627 } 1628 1629 if (reply_len != reply_buf_size) { 1630 /* Too much or too little data received */ 1631 PRVERB((aha->dev, "data received mismatch (%d != %d)\n", 1632 reply_len, reply_buf_size)); 1633 return (EMSGSIZE); 1634 } 1635 1636 /* We were successful */ 1637 return (0); 1638 } 1639 1640 static int 1641 ahainitmboxes(struct aha_softc *aha) 1642 { 1643 int error; 1644 init_24b_mbox_params_t init_mbox; 1645 1646 bzero(aha->in_boxes, sizeof(aha_mbox_in_t) * aha->num_boxes); 1647 bzero(aha->out_boxes, sizeof(aha_mbox_out_t) * aha->num_boxes); 1648 aha->cur_inbox = aha->in_boxes; 1649 aha->last_inbox = aha->in_boxes + aha->num_boxes - 1; 1650 aha->cur_outbox = aha->out_boxes; 1651 aha->last_outbox = aha->out_boxes + aha->num_boxes - 1; 1652 1653 /* Tell the adapter about them */ 1654 init_mbox.num_mboxes = aha->num_boxes; 1655 ahautoa24(aha->mailbox_physbase, init_mbox.base_addr); 1656 error = aha_cmd(aha, AOP_INITIALIZE_MBOX, (uint8_t *)&init_mbox, 1657 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 1658 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 1659 1660 if (error != 0) 1661 printf("ahainitmboxes: Initialization command failed\n"); 1662 return (error); 1663 } 1664 1665 /* 1666 * Update the XPT's idea of the negotiated transfer 1667 * parameters for a particular target. 1668 */ 1669 static void 1670 ahafetchtransinfo(struct aha_softc *aha, struct ccb_trans_settings* cts) 1671 { 1672 setup_data_t setup_info; 1673 u_int target; 1674 u_int targ_offset; 1675 u_int sync_period; 1676 int error; 1677 uint8_t param; 1678 targ_syncinfo_t sync_info; 1679 1680 target = cts->ccb_h.target_id; 1681 targ_offset = (target & 0x7); 1682 1683 /* 1684 * Inquire Setup Information. This command retreives 1685 * the sync info for older models. 1686 */ 1687 param = sizeof(setup_info); 1688 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 1689 (uint8_t*)&setup_info, sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 1690 1691 if (error != 0) { 1692 device_printf(aha->dev, 1693 "ahafetchtransinfo - Inquire Setup Info Failed %d\n", 1694 error); 1695 return; 1696 } 1697 1698 sync_info = setup_info.syncinfo[targ_offset]; 1699 1700 if (sync_info.sync == 0) 1701 cts->sync_offset = 0; 1702 else 1703 cts->sync_offset = sync_info.offset; 1704 1705 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1706 1707 if (aha->boardid >= BOARD_1542CF) 1708 sync_period = 1000; 1709 else 1710 sync_period = 2000; 1711 sync_period += 500 * sync_info.period; 1712 1713 /* Convert ns value to standard SCSI sync rate */ 1714 if (cts->sync_offset != 0) 1715 cts->sync_period = scsi_calc_syncparam(sync_period); 1716 else 1717 cts->sync_period = 0; 1718 1719 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1720 | CCB_TRANS_SYNC_OFFSET_VALID 1721 | CCB_TRANS_BUS_WIDTH_VALID; 1722 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 1723 } 1724 1725 static void 1726 ahamapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1727 { 1728 struct aha_softc* aha; 1729 1730 aha = (struct aha_softc*)arg; 1731 aha->mailbox_physbase = segs->ds_addr; 1732 } 1733 1734 static void 1735 ahamapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1736 { 1737 struct aha_softc* aha; 1738 1739 aha = (struct aha_softc*)arg; 1740 aha->aha_ccb_physbase = segs->ds_addr; 1741 } 1742 1743 static void 1744 ahamapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1745 { 1746 1747 struct aha_softc* aha; 1748 1749 aha = (struct aha_softc*)arg; 1750 SLIST_FIRST(&aha->sg_maps)->sg_physaddr = segs->ds_addr; 1751 } 1752 1753 static void 1754 ahapoll(struct cam_sim *sim) 1755 { 1756 aha_intr(cam_sim_softc(sim)); 1757 } 1758 1759 static void 1760 ahatimeout(void *arg) 1761 { 1762 struct aha_ccb *accb; 1763 union ccb *ccb; 1764 struct aha_softc *aha; 1765 int s; 1766 uint32_t paddr; 1767 struct ccb_hdr *ccb_h; 1768 1769 accb = (struct aha_ccb *)arg; 1770 ccb = accb->ccb; 1771 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1772 xpt_print_path(ccb->ccb_h.path); 1773 printf("CCB %p - timed out\n", (void *)accb); 1774 1775 s = splcam(); 1776 1777 if ((accb->flags & ACCB_ACTIVE) == 0) { 1778 xpt_print_path(ccb->ccb_h.path); 1779 printf("CCB %p - timed out CCB already completed\n", 1780 (void *)accb); 1781 splx(s); 1782 return; 1783 } 1784 1785 /* 1786 * In order to simplify the recovery process, we ask the XPT 1787 * layer to halt the queue of new transactions and we traverse 1788 * the list of pending CCBs and remove their timeouts. This 1789 * means that the driver attempts to clear only one error 1790 * condition at a time. In general, timeouts that occur 1791 * close together are related anyway, so there is no benefit 1792 * in attempting to handle errors in parrallel. Timeouts will 1793 * be reinstated when the recovery process ends. 1794 */ 1795 if ((accb->flags & ACCB_DEVICE_RESET) == 0) { 1796 if ((accb->flags & ACCB_RELEASE_SIMQ) == 0) { 1797 xpt_freeze_simq(aha->sim, /*count*/1); 1798 accb->flags |= ACCB_RELEASE_SIMQ; 1799 } 1800 1801 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1802 while (ccb_h != NULL) { 1803 struct aha_ccb *pending_accb; 1804 1805 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1806 untimeout(ahatimeout, pending_accb, ccb_h->timeout_ch); 1807 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1808 } 1809 } 1810 1811 if ((accb->flags & ACCB_DEVICE_RESET) != 0 1812 || aha->cur_outbox->action_code != AMBO_FREE) { 1813 /* 1814 * Try a full host adapter/SCSI bus reset. 1815 * We do this only if we have already attempted 1816 * to clear the condition with a BDR, or we cannot 1817 * attempt a BDR for lack of mailbox resources. 1818 */ 1819 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 1820 ahareset(aha, /*hardreset*/TRUE); 1821 device_printf(aha->dev, "No longer in timeout\n"); 1822 } else { 1823 /* 1824 * Send a Bus Device Reset message: 1825 * The target that is holding up the bus may not 1826 * be the same as the one that triggered this timeout 1827 * (different commands have different timeout lengths), 1828 * but we have no way of determining this from our 1829 * timeout handler. Our strategy here is to queue a 1830 * BDR message to the target of the timed out command. 1831 * If this fails, we'll get another timeout 2 seconds 1832 * later which will attempt a bus reset. 1833 */ 1834 accb->flags |= ACCB_DEVICE_RESET; 1835 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 2 * hz); 1836 aha->recovery_accb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 1837 1838 /* No Data Transfer */ 1839 aha->recovery_accb->hccb.datain = TRUE; 1840 aha->recovery_accb->hccb.dataout = TRUE; 1841 aha->recovery_accb->hccb.ahastat = 0; 1842 aha->recovery_accb->hccb.sdstat = 0; 1843 aha->recovery_accb->hccb.target = ccb->ccb_h.target_id; 1844 1845 /* Tell the adapter about this command */ 1846 paddr = ahaccbvtop(aha, aha->recovery_accb); 1847 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1848 aha->cur_outbox->action_code = AMBO_START; 1849 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1850 ahanextoutbox(aha); 1851 } 1852 1853 splx(s); 1854 } 1855 1856 int 1857 aha_detach(struct aha_softc *aha) 1858 { 1859 xpt_async(AC_LOST_DEVICE, aha->path, NULL); 1860 xpt_free_path(aha->path); 1861 xpt_bus_deregister(cam_sim_path(aha->sim)); 1862 cam_sim_free(aha->sim, /*free_devq*/TRUE); 1863 return (0); 1864 }
Cache object: 1bfa4b39f64409609dac929f155083fc
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