aha.c revision 122385
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: head/sys/dev/aha/aha.c 122385 2003-11-10 02:47:11Z imp $"); 61 62#include <sys/param.h> 63#include <sys/systm.h> 64#include <sys/malloc.h> 65#include <sys/kernel.h> 66#include <sys/lock.h> 67#include <sys/mutex.h> 68 69#include <machine/bus_pio.h> 70#include <machine/bus.h> 71 72#include <cam/cam.h> 73#include <cam/cam_ccb.h> 74#include <cam/cam_sim.h> 75#include <cam/cam_xpt_sim.h> 76#include <cam/cam_debug.h> 77 78#include <cam/scsi/scsi_message.h> 79 80#include <dev/aha/ahareg.h> 81 82#define PRVERB(x) if (bootverbose) printf x 83 84/* Macro to determine that a rev is potentially a new valid one 85 * so that the driver doesn't keep breaking on new revs as it 86 * did for the CF and CP. 87 */ 88#define PROBABLY_NEW_BOARD(REV) (REV > 0x43 && REV < 0x56) 89 90/* MailBox Management functions */ 91static __inline void ahanextinbox(struct aha_softc *aha); 92static __inline void ahanextoutbox(struct aha_softc *aha); 93 94static __inline void 95ahanextinbox(struct aha_softc *aha) 96{ 97 if (aha->cur_inbox == aha->last_inbox) 98 aha->cur_inbox = aha->in_boxes; 99 else 100 aha->cur_inbox++; 101} 102 103static __inline void 104ahanextoutbox(struct aha_softc *aha) 105{ 106 if (aha->cur_outbox == aha->last_outbox) 107 aha->cur_outbox = aha->out_boxes; 108 else 109 aha->cur_outbox++; 110} 111 112#define ahautoa24(u,s3) \ 113 (s3)[0] = ((u) >> 16) & 0xff; \ 114 (s3)[1] = ((u) >> 8) & 0xff; \ 115 (s3)[2] = (u) & 0xff; 116 117#define aha_a24tou(s3) \ 118 (((s3)[0] << 16) | ((s3)[1] << 8) | (s3)[2]) 119 120/* CCB Mangement functions */ 121static __inline uint32_t ahaccbvtop(struct aha_softc *aha, 122 struct aha_ccb *accb); 123static __inline struct aha_ccb* ahaccbptov(struct aha_softc *aha, 124 uint32_t ccb_addr); 125 126static __inline uint32_t 127ahaccbvtop(struct aha_softc *aha, struct aha_ccb *accb) 128{ 129 return (aha->aha_ccb_physbase 130 + (uint32_t)((caddr_t)accb - (caddr_t)aha->aha_ccb_array)); 131} 132static __inline struct aha_ccb * 133ahaccbptov(struct aha_softc *aha, uint32_t ccb_addr) 134{ 135 return (aha->aha_ccb_array + 136 + ((struct aha_ccb*)(uintptr_t)ccb_addr - 137 (struct aha_ccb*)(uintptr_t)aha->aha_ccb_physbase)); 138} 139 140static struct aha_ccb* ahagetccb(struct aha_softc *aha); 141static __inline void ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb); 142static void ahaallocccbs(struct aha_softc *aha); 143static bus_dmamap_callback_t ahaexecuteccb; 144static void ahadone(struct aha_softc *aha, struct aha_ccb *accb, 145 aha_mbi_comp_code_t comp_code); 146 147/* Host adapter command functions */ 148static int ahareset(struct aha_softc* aha, int hard_reset); 149 150/* Initialization functions */ 151static int ahainitmboxes(struct aha_softc *aha); 152static bus_dmamap_callback_t ahamapmboxes; 153static bus_dmamap_callback_t ahamapccbs; 154static bus_dmamap_callback_t ahamapsgs; 155 156/* Transfer Negotiation Functions */ 157static void ahafetchtransinfo(struct aha_softc *aha, 158 struct ccb_trans_settings *cts); 159 160/* CAM SIM entry points */ 161#define ccb_accb_ptr spriv_ptr0 162#define ccb_aha_ptr spriv_ptr1 163static void ahaaction(struct cam_sim *sim, union ccb *ccb); 164static void ahapoll(struct cam_sim *sim); 165 166/* Our timeout handler */ 167static timeout_t ahatimeout; 168 169/* Exported functions */ 170void 171aha_alloc(struct aha_softc *aha, int unit, bus_space_tag_t tag, 172 bus_space_handle_t bsh) 173{ 174 175 SLIST_INIT(&aha->free_aha_ccbs); 176 LIST_INIT(&aha->pending_ccbs); 177 SLIST_INIT(&aha->sg_maps); 178 aha->unit = unit; 179 aha->tag = tag; 180 aha->bsh = bsh; 181 aha->ccb_sg_opcode = INITIATOR_SG_CCB_WRESID; 182 aha->ccb_ccb_opcode = INITIATOR_CCB_WRESID; 183} 184 185void 186aha_free(struct aha_softc *aha) 187{ 188 switch (aha->init_level) { 189 default: 190 case 8: 191 { 192 struct sg_map_node *sg_map; 193 194 while ((sg_map = SLIST_FIRST(&aha->sg_maps))!= NULL) { 195 SLIST_REMOVE_HEAD(&aha->sg_maps, links); 196 bus_dmamap_unload(aha->sg_dmat, sg_map->sg_dmamap); 197 bus_dmamem_free(aha->sg_dmat, sg_map->sg_vaddr, 198 sg_map->sg_dmamap); 199 free(sg_map, M_DEVBUF); 200 } 201 bus_dma_tag_destroy(aha->sg_dmat); 202 } 203 case 7: 204 bus_dmamap_unload(aha->ccb_dmat, aha->ccb_dmamap); 205 case 6: 206 bus_dmamap_destroy(aha->ccb_dmat, aha->ccb_dmamap); 207 bus_dmamem_free(aha->ccb_dmat, aha->aha_ccb_array, 208 aha->ccb_dmamap); 209 case 5: 210 bus_dma_tag_destroy(aha->ccb_dmat); 211 case 4: 212 bus_dmamap_unload(aha->mailbox_dmat, aha->mailbox_dmamap); 213 case 3: 214 bus_dmamem_free(aha->mailbox_dmat, aha->in_boxes, 215 aha->mailbox_dmamap); 216 bus_dmamap_destroy(aha->mailbox_dmat, aha->mailbox_dmamap); 217 case 2: 218 bus_dma_tag_destroy(aha->buffer_dmat); 219 case 1: 220 bus_dma_tag_destroy(aha->mailbox_dmat); 221 case 0: 222 break; 223 } 224} 225 226/* 227 * Probe the adapter and verify that the card is an Adaptec. 228 */ 229int 230aha_probe(struct aha_softc* aha) 231{ 232 u_int status; 233 u_int intstat; 234 int error; 235 board_id_data_t board_id; 236 237 /* 238 * See if the three I/O ports look reasonable. 239 * Touch the minimal number of registers in the 240 * failure case. 241 */ 242 status = aha_inb(aha, STATUS_REG); 243 if ((status == 0) || 244 (status & (DIAG_ACTIVE|CMD_REG_BUSY | STATUS_REG_RSVD)) != 0) { 245 PRVERB(("%s: status reg test failed %x\n", aha_name(aha), 246 status)); 247 return (ENXIO); 248 } 249 250 intstat = aha_inb(aha, INTSTAT_REG); 251 if ((intstat & INTSTAT_REG_RSVD) != 0) { 252 PRVERB(("%s: Failed Intstat Reg Test\n", aha_name(aha))); 253 return (ENXIO); 254 } 255 256 /* 257 * Looking good so far. Final test is to reset the 258 * adapter and fetch the board ID and ensure we aren't 259 * looking at a BusLogic. 260 */ 261 if ((error = ahareset(aha, /*hard_reset*/TRUE)) != 0) { 262 PRVERB(("%s: Failed Reset\n", aha_name(aha))); 263 return (ENXIO); 264 } 265 266 /* 267 * Get the board ID. We use this to see if we're dealing with 268 * a buslogic card or an aha card (or clone). 269 */ 270 error = aha_cmd(aha, AOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0, 271 (uint8_t*)&board_id, sizeof(board_id), DEFAULT_CMD_TIMEOUT); 272 if (error != 0) { 273 PRVERB(("%s: INQUIRE failed %x\n", aha_name(aha), error)); 274 return (ENXIO); 275 } 276 aha->fw_major = board_id.firmware_rev_major; 277 aha->fw_minor = board_id.firmware_rev_minor; 278 aha->boardid = board_id.board_type; 279 280 /* 281 * The Buslogic cards have an id of either 0x41 or 0x42. So 282 * if those come up in the probe, we test the geometry register 283 * of the board. Adaptec boards that are this old will not have 284 * this register, and return 0xff, while buslogic cards will return 285 * something different. 286 * 287 * It appears that for reasons unknow, for the for the 288 * aha-1542B cards, we need to wait a little bit before trying 289 * to read the geometry register. I picked 10ms since we have 290 * reports that a for loop to 1000 did the trick, and this 291 * errs on the side of conservatism. Besides, no one will 292 * notice a 10mS delay here, even the 1542B card users :-) 293 * 294 * Some compatible cards return 0 here. Some cards also 295 * seem to return 0x7f. 296 * 297 * XXX I'm not sure how this will impact other cloned cards 298 * 299 * This really should be replaced with the esetup command, since 300 * that appears to be more reliable. This becomes more and more 301 * true over time as we discover more cards that don't read the 302 * geometry register consistantly. 303 */ 304 if (aha->boardid <= 0x42) { 305 /* Wait 10ms before reading */ 306 DELAY(10000); 307 status = aha_inb(aha, GEOMETRY_REG); 308 if (status != 0xff && status != 0x00 && status != 0x7f) { 309 PRVERB(("%s: Geometry Register test failed 0x%x\n", 310 aha_name(aha), status)); 311 return (ENXIO); 312 } 313 } 314 315 return (0); 316} 317 318/* 319 * Pull the boards setup information and record it in our softc. 320 */ 321int 322aha_fetch_adapter_info(struct aha_softc *aha) 323{ 324 setup_data_t setup_info; 325 config_data_t config_data; 326 uint8_t length_param; 327 int error; 328 struct aha_extbios extbios; 329 330 switch (aha->boardid) { 331 case BOARD_1540_16HEAD_BIOS: 332 snprintf(aha->model, sizeof(aha->model), "1540 16 head BIOS"); 333 break; 334 case BOARD_1540_64HEAD_BIOS: 335 snprintf(aha->model, sizeof(aha->model), "1540 64 head BIOS"); 336 break; 337 case BOARD_1542: 338 snprintf(aha->model, sizeof(aha->model), "1540/1542 64 head BIOS"); 339 break; 340 case BOARD_1640: 341 snprintf(aha->model, sizeof(aha->model), "1640"); 342 break; 343 case BOARD_1740: 344 snprintf(aha->model, sizeof(aha->model), "1740A/1742A/1744"); 345 break; 346 case BOARD_1542C: 347 snprintf(aha->model, sizeof(aha->model), "1542C"); 348 break; 349 case BOARD_1542CF: 350 snprintf(aha->model, sizeof(aha->model), "1542CF"); 351 break; 352 case BOARD_1542CP: 353 snprintf(aha->model, sizeof(aha->model), "1542CP"); 354 break; 355 default: 356 snprintf(aha->model, sizeof(aha->model), "Unknown"); 357 break; 358 } 359 /* 360 * If we are a new type of 1542 board (anything newer than a 1542C) 361 * then disable the extended bios so that the 362 * mailbox interface is unlocked. 363 * This is also true for the 1542B Version 3.20. First Adaptec 364 * board that supports >1Gb drives. 365 * No need to check the extended bios flags as some of the 366 * extensions that cause us problems are not flagged in that byte. 367 */ 368 if (PROBABLY_NEW_BOARD(aha->boardid) || 369 (aha->boardid == 0x41 370 && aha->fw_major == 0x31 && 371 aha->fw_minor >= 0x34)) { 372 error = aha_cmd(aha, AOP_RETURN_EXT_BIOS_INFO, NULL, 373 /*paramlen*/0, (u_char *)&extbios, sizeof(extbios), 374 DEFAULT_CMD_TIMEOUT); 375 if (error != 0) { 376 printf("%s: AOP_RETURN_EXT_BIOS_INFO - Failed.", 377 aha_name(aha)); 378 return (error); 379 } 380 error = aha_cmd(aha, AOP_MBOX_IF_ENABLE, (uint8_t *)&extbios, 381 /*paramlen*/2, NULL, 0, DEFAULT_CMD_TIMEOUT); 382 if (error != 0) { 383 printf("%s: AOP_MBOX_IF_ENABLE - Failed.", 384 aha_name(aha)); 385 return (error); 386 } 387 } 388 if (aha->boardid < 0x41) 389 printf("%s: Warning: aha-1542A won't likely work.\n", 390 aha_name(aha)); 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 printf("%s: aha_fetch_adapter_info - Failed " 404 "Get Setup Info\n", aha_name(aha)); 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 printf("%s: aha_fetch_adapter_info - Failed Get Config\n", 420 aha_name(aha)); 421 return (error); 422 } 423 aha->scsi_id = config_data.scsi_id; 424 return (0); 425} 426 427/* 428 * Start the board, ready for normal operation 429 */ 430int 431aha_init(struct aha_softc* aha) 432{ 433 /* Announce the Adapter */ 434 printf("%s: AHA-%s FW Rev. %c.%c (ID=%x) ", aha_name(aha), 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 printf("%s: aha_init - Unable to allocate initial ccbs\n", 571 aha_name(aha)); 572 goto error_exit; 573 } 574 575 /* 576 * Note that we are going and return (to probe) 577 */ 578 return (0); 579 580error_exit: 581 582 return (ENXIO); 583} 584 585int 586aha_attach(struct aha_softc *aha) 587{ 588 int tagged_dev_openings; 589 struct cam_devq *devq; 590 591 /* 592 * We don't do tagged queueing, since the aha cards don't 593 * support it. 594 */ 595 tagged_dev_openings = 0; 596 597 /* 598 * Create the device queue for our SIM. 599 */ 600 devq = cam_simq_alloc(aha->max_ccbs - 1); 601 if (devq == NULL) 602 return (ENOMEM); 603 604 /* 605 * Construct our SIM entry 606 */ 607 aha->sim = cam_sim_alloc(ahaaction, ahapoll, "aha", aha, aha->unit, 2, 608 tagged_dev_openings, devq); 609 if (aha->sim == NULL) { 610 cam_simq_free(devq); 611 return (ENOMEM); 612 } 613 if (xpt_bus_register(aha->sim, 0) != CAM_SUCCESS) { 614 cam_sim_free(aha->sim, /*free_devq*/TRUE); 615 return (ENXIO); 616 } 617 if (xpt_create_path(&aha->path, /*periph*/NULL, cam_sim_path(aha->sim), 618 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 619 xpt_bus_deregister(cam_sim_path(aha->sim)); 620 cam_sim_free(aha->sim, /*free_devq*/TRUE); 621 return (ENXIO); 622 } 623 624 return (0); 625} 626 627char * 628aha_name(struct aha_softc *aha) 629{ 630 static char name[10]; 631 632 snprintf(name, sizeof(name), "aha%d", aha->unit); 633 return (name); 634} 635 636static void 637ahaallocccbs(struct aha_softc *aha) 638{ 639 struct aha_ccb *next_ccb; 640 struct sg_map_node *sg_map; 641 bus_addr_t physaddr; 642 aha_sg_t *segs; 643 int newcount; 644 int i; 645 646 next_ccb = &aha->aha_ccb_array[aha->num_ccbs]; 647 648 sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT); 649 650 if (sg_map == NULL) 651 return; 652 653 /* Allocate S/G space for the next batch of CCBS */ 654 if (bus_dmamem_alloc(aha->sg_dmat, (void **)&sg_map->sg_vaddr, 655 BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) { 656 free(sg_map, M_DEVBUF); 657 return; 658 } 659 660 SLIST_INSERT_HEAD(&aha->sg_maps, sg_map, links); 661 662 bus_dmamap_load(aha->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr, 663 PAGE_SIZE, ahamapsgs, aha, /*flags*/0); 664 665 segs = sg_map->sg_vaddr; 666 physaddr = sg_map->sg_physaddr; 667 668 newcount = (PAGE_SIZE / (AHA_NSEG * sizeof(aha_sg_t))); 669 for (i = 0; aha->num_ccbs < aha->max_ccbs && i < newcount; i++) { 670 int error; 671 672 next_ccb->sg_list = segs; 673 next_ccb->sg_list_phys = physaddr; 674 next_ccb->flags = ACCB_FREE; 675 error = bus_dmamap_create(aha->buffer_dmat, /*flags*/0, 676 &next_ccb->dmamap); 677 if (error != 0) 678 break; 679 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, next_ccb, links); 680 segs += AHA_NSEG; 681 physaddr += (AHA_NSEG * sizeof(aha_sg_t)); 682 next_ccb++; 683 aha->num_ccbs++; 684 } 685 686 /* Reserve a CCB for error recovery */ 687 if (aha->recovery_accb == NULL) { 688 aha->recovery_accb = SLIST_FIRST(&aha->free_aha_ccbs); 689 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 690 } 691} 692 693static __inline void 694ahafreeccb(struct aha_softc *aha, struct aha_ccb *accb) 695{ 696 int s; 697 698 s = splcam(); 699 if ((accb->flags & ACCB_ACTIVE) != 0) 700 LIST_REMOVE(&accb->ccb->ccb_h, sim_links.le); 701 if (aha->resource_shortage != 0 702 && (accb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 703 accb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 704 aha->resource_shortage = FALSE; 705 } 706 accb->flags = ACCB_FREE; 707 SLIST_INSERT_HEAD(&aha->free_aha_ccbs, accb, links); 708 aha->active_ccbs--; 709 splx(s); 710} 711 712static struct aha_ccb* 713ahagetccb(struct aha_softc *aha) 714{ 715 struct aha_ccb* accb; 716 int s; 717 718 s = splcam(); 719 if ((accb = SLIST_FIRST(&aha->free_aha_ccbs)) != NULL) { 720 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 721 aha->active_ccbs++; 722 } else if (aha->num_ccbs < aha->max_ccbs) { 723 ahaallocccbs(aha); 724 accb = SLIST_FIRST(&aha->free_aha_ccbs); 725 if (accb == NULL) 726 printf("%s: Can't malloc ACCB\n", aha_name(aha)); 727 else { 728 SLIST_REMOVE_HEAD(&aha->free_aha_ccbs, links); 729 aha->active_ccbs++; 730 } 731 } 732 splx(s); 733 734 return (accb); 735} 736 737static void 738ahaaction(struct cam_sim *sim, union ccb *ccb) 739{ 740 struct aha_softc *aha; 741 int s; 742 743 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahaaction\n")); 744 745 aha = (struct aha_softc *)cam_sim_softc(sim); 746 747 switch (ccb->ccb_h.func_code) { 748 /* Common cases first */ 749 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 750 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ { 751 struct aha_ccb *accb; 752 struct aha_hccb *hccb; 753 754 /* 755 * Get an accb to use. 756 */ 757 if ((accb = ahagetccb(aha)) == NULL) { 758 s = splcam(); 759 aha->resource_shortage = TRUE; 760 splx(s); 761 xpt_freeze_simq(aha->sim, /*count*/1); 762 ccb->ccb_h.status = CAM_REQUEUE_REQ; 763 xpt_done(ccb); 764 return; 765 } 766 hccb = &accb->hccb; 767 768 /* 769 * So we can find the ACCB when an abort is requested 770 */ 771 accb->ccb = ccb; 772 ccb->ccb_h.ccb_accb_ptr = accb; 773 ccb->ccb_h.ccb_aha_ptr = aha; 774 775 /* 776 * Put all the arguments for the xfer in the accb 777 */ 778 hccb->target = ccb->ccb_h.target_id; 779 hccb->lun = ccb->ccb_h.target_lun; 780 hccb->ahastat = 0; 781 hccb->sdstat = 0; 782 783 if (ccb->ccb_h.func_code == XPT_SCSI_IO) { 784 struct ccb_scsiio *csio; 785 struct ccb_hdr *ccbh; 786 787 csio = &ccb->csio; 788 ccbh = &csio->ccb_h; 789 hccb->opcode = aha->ccb_ccb_opcode; 790 hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) != 0; 791 hccb->dataout = (ccb->ccb_h.flags & CAM_DIR_OUT) != 0; 792 hccb->cmd_len = csio->cdb_len; 793 if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) { 794 ccb->ccb_h.status = CAM_REQ_INVALID; 795 ahafreeccb(aha, accb); 796 xpt_done(ccb); 797 return; 798 } 799 hccb->sense_len = csio->sense_len; 800 if ((ccbh->flags & CAM_CDB_POINTER) != 0) { 801 if ((ccbh->flags & CAM_CDB_PHYS) == 0) { 802 bcopy(csio->cdb_io.cdb_ptr, 803 hccb->scsi_cdb, hccb->cmd_len); 804 } else { 805 /* I guess I could map it in... */ 806 ccbh->status = CAM_REQ_INVALID; 807 ahafreeccb(aha, accb); 808 xpt_done(ccb); 809 return; 810 } 811 } else { 812 bcopy(csio->cdb_io.cdb_bytes, 813 hccb->scsi_cdb, hccb->cmd_len); 814 } 815 /* 816 * If we have any data to send with this command, 817 * map it into bus space. 818 */ 819 /* Only use S/G if there is a transfer */ 820 if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 821 if ((ccbh->flags & CAM_SCATTER_VALID) == 0) { 822 /* 823 * We've been given a pointer 824 * to a single buffer. 825 */ 826 if ((ccbh->flags & CAM_DATA_PHYS)==0) { 827 int error; 828 829 s = splsoftvm(); 830 error = bus_dmamap_load( 831 aha->buffer_dmat, 832 accb->dmamap, 833 csio->data_ptr, 834 csio->dxfer_len, 835 ahaexecuteccb, 836 accb, 837 /*flags*/0); 838 if (error == EINPROGRESS) { 839 /* 840 * So as to maintain 841 * ordering, freeze the 842 * controller queue 843 * until our mapping is 844 * returned. 845 */ 846 xpt_freeze_simq(aha->sim, 847 1); 848 csio->ccb_h.status |= 849 CAM_RELEASE_SIMQ; 850 } 851 splx(s); 852 } else { 853 struct bus_dma_segment seg; 854 855 /* Pointer to physical buffer */ 856 seg.ds_addr = 857 (bus_addr_t)csio->data_ptr; 858 seg.ds_len = csio->dxfer_len; 859 ahaexecuteccb(accb, &seg, 1, 0); 860 } 861 } else { 862 struct bus_dma_segment *segs; 863 864 if ((ccbh->flags & CAM_DATA_PHYS) != 0) 865 panic("ahaaction - Physical " 866 "segment pointers " 867 "unsupported"); 868 869 if ((ccbh->flags&CAM_SG_LIST_PHYS)==0) 870 panic("ahaaction - Virtual " 871 "segment addresses " 872 "unsupported"); 873 874 /* Just use the segments provided */ 875 segs = (struct bus_dma_segment *) 876 csio->data_ptr; 877 ahaexecuteccb(accb, segs, 878 csio->sglist_cnt, 0); 879 } 880 } else { 881 ahaexecuteccb(accb, NULL, 0, 0); 882 } 883 } else { 884 hccb->opcode = INITIATOR_BUS_DEV_RESET; 885 /* No data transfer */ 886 hccb->datain = TRUE; 887 hccb->dataout = TRUE; 888 hccb->cmd_len = 0; 889 hccb->sense_len = 0; 890 ahaexecuteccb(accb, NULL, 0, 0); 891 } 892 break; 893 } 894 case XPT_EN_LUN: /* Enable LUN as a target */ 895 case XPT_TARGET_IO: /* Execute target I/O request */ 896 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 897 case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/ 898 case XPT_ABORT: /* Abort the specified CCB */ 899 /* XXX Implement */ 900 ccb->ccb_h.status = CAM_REQ_INVALID; 901 xpt_done(ccb); 902 break; 903 case XPT_SET_TRAN_SETTINGS: 904 /* XXX Implement */ 905 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 906 xpt_done(ccb); 907 break; 908 case XPT_GET_TRAN_SETTINGS: 909 /* Get default/user set transfer settings for the target */ 910 { 911 struct ccb_trans_settings *cts; 912 u_int target_mask; 913 914 cts = &ccb->cts; 915 target_mask = 0x01 << ccb->ccb_h.target_id; 916 if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 917 cts->flags = 0; 918 if ((aha->disc_permitted & target_mask) != 0) 919 cts->flags |= CCB_TRANS_DISC_ENB; 920 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 921 if ((aha->sync_permitted & target_mask) != 0) { 922 if (aha->boardid >= BOARD_1542CF) 923 cts->sync_period = 25; 924 else 925 cts->sync_period = 50; 926 } else 927 cts->sync_period = 0; 928 929 if (cts->sync_period != 0) 930 cts->sync_offset = 15; 931 932 cts->valid = CCB_TRANS_SYNC_RATE_VALID 933 | CCB_TRANS_SYNC_OFFSET_VALID 934 | CCB_TRANS_BUS_WIDTH_VALID 935 | CCB_TRANS_DISC_VALID 936 | CCB_TRANS_TQ_VALID; 937 } else { 938 ahafetchtransinfo(aha, cts); 939 } 940 941 ccb->ccb_h.status = CAM_REQ_CMP; 942 xpt_done(ccb); 943 break; 944 } 945 case XPT_CALC_GEOMETRY: 946 { 947 struct ccb_calc_geometry *ccg; 948 uint32_t size_mb; 949 uint32_t secs_per_cylinder; 950 951 ccg = &ccb->ccg; 952 size_mb = ccg->volume_size 953 / ((1024L * 1024L) / ccg->block_size); 954 if (size_mb >= 1024 && (aha->extended_trans != 0)) { 955 if (size_mb >= 2048) { 956 ccg->heads = 255; 957 ccg->secs_per_track = 63; 958 } else { 959 ccg->heads = 128; 960 ccg->secs_per_track = 32; 961 } 962 } else { 963 ccg->heads = 64; 964 ccg->secs_per_track = 32; 965 } 966 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 967 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 968 ccb->ccb_h.status = CAM_REQ_CMP; 969 xpt_done(ccb); 970 break; 971 } 972 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 973 ahareset(aha, /*hardreset*/TRUE); 974 ccb->ccb_h.status = CAM_REQ_CMP; 975 xpt_done(ccb); 976 break; 977 case XPT_TERM_IO: /* Terminate the I/O process */ 978 /* XXX Implement */ 979 ccb->ccb_h.status = CAM_REQ_INVALID; 980 xpt_done(ccb); 981 break; 982 case XPT_PATH_INQ: /* Path routing inquiry */ 983 { 984 struct ccb_pathinq *cpi = &ccb->cpi; 985 986 cpi->version_num = 1; /* XXX??? */ 987 cpi->hba_inquiry = PI_SDTR_ABLE; 988 cpi->target_sprt = 0; 989 cpi->hba_misc = 0; 990 cpi->hba_eng_cnt = 0; 991 cpi->max_target = 7; 992 cpi->max_lun = 7; 993 cpi->initiator_id = aha->scsi_id; 994 cpi->bus_id = cam_sim_bus(sim); 995 cpi->base_transfer_speed = 3300; 996 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 997 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 998 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 999 cpi->unit_number = cam_sim_unit(sim); 1000 cpi->ccb_h.status = CAM_REQ_CMP; 1001 xpt_done(ccb); 1002 break; 1003 } 1004 default: 1005 ccb->ccb_h.status = CAM_REQ_INVALID; 1006 xpt_done(ccb); 1007 break; 1008 } 1009} 1010 1011static void 1012ahaexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) 1013{ 1014 struct aha_ccb *accb; 1015 union ccb *ccb; 1016 struct aha_softc *aha; 1017 int s; 1018 uint32_t paddr; 1019 1020 accb = (struct aha_ccb *)arg; 1021 ccb = accb->ccb; 1022 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1023 1024 if (error != 0) { 1025 if (error != EFBIG) 1026 printf("%s: Unexepected error 0x%x returned from " 1027 "bus_dmamap_load\n", aha_name(aha), error); 1028 if (ccb->ccb_h.status == CAM_REQ_INPROG) { 1029 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1030 ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN; 1031 } 1032 ahafreeccb(aha, accb); 1033 xpt_done(ccb); 1034 return; 1035 } 1036 1037 if (nseg != 0) { 1038 aha_sg_t *sg; 1039 bus_dma_segment_t *end_seg; 1040 bus_dmasync_op_t op; 1041 1042 end_seg = dm_segs + nseg; 1043 1044 /* Copy the segments into our SG list */ 1045 sg = accb->sg_list; 1046 while (dm_segs < end_seg) { 1047 ahautoa24(dm_segs->ds_len, sg->len); 1048 ahautoa24(dm_segs->ds_addr, sg->addr); 1049 sg++; 1050 dm_segs++; 1051 } 1052 1053 if (nseg > 1) { 1054 accb->hccb.opcode = aha->ccb_sg_opcode; 1055 ahautoa24((sizeof(aha_sg_t) * nseg), 1056 accb->hccb.data_len); 1057 ahautoa24(accb->sg_list_phys, accb->hccb.data_addr); 1058 } else { 1059 bcopy(accb->sg_list->len, accb->hccb.data_len, 3); 1060 bcopy(accb->sg_list->addr, accb->hccb.data_addr, 3); 1061 } 1062 1063 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1064 op = BUS_DMASYNC_PREREAD; 1065 else 1066 op = BUS_DMASYNC_PREWRITE; 1067 1068 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1069 1070 } else { 1071 accb->hccb.opcode = INITIATOR_CCB; 1072 ahautoa24(0, accb->hccb.data_len); 1073 ahautoa24(0, accb->hccb.data_addr); 1074 } 1075 1076 s = splcam(); 1077 1078 /* 1079 * Last time we need to check if this CCB needs to 1080 * be aborted. 1081 */ 1082 if (ccb->ccb_h.status != CAM_REQ_INPROG) { 1083 if (nseg != 0) 1084 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1085 ahafreeccb(aha, accb); 1086 xpt_done(ccb); 1087 splx(s); 1088 return; 1089 } 1090 1091 accb->flags = ACCB_ACTIVE; 1092 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1093 LIST_INSERT_HEAD(&aha->pending_ccbs, &ccb->ccb_h, sim_links.le); 1094 1095 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 1096 (ccb->ccb_h.timeout * hz) / 1000); 1097 1098 /* Tell the adapter about this command */ 1099 if (aha->cur_outbox->action_code != AMBO_FREE) { 1100 /* 1101 * We should never encounter a busy mailbox. 1102 * If we do, warn the user, and treat it as 1103 * a resource shortage. If the controller is 1104 * hung, one of the pending transactions will 1105 * timeout causing us to start recovery operations. 1106 */ 1107 printf("%s: Encountered busy mailbox with %d out of %d " 1108 "commands active!!!", aha_name(aha), aha->active_ccbs, 1109 aha->max_ccbs); 1110 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1111 if (nseg != 0) 1112 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1113 ahafreeccb(aha, accb); 1114 aha->resource_shortage = TRUE; 1115 xpt_freeze_simq(aha->sim, /*count*/1); 1116 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1117 xpt_done(ccb); 1118 return; 1119 } 1120 paddr = ahaccbvtop(aha, accb); 1121 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1122 aha->cur_outbox->action_code = AMBO_START; 1123 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1124 1125 ahanextoutbox(aha); 1126 splx(s); 1127} 1128 1129void 1130aha_intr(void *arg) 1131{ 1132 struct aha_softc *aha; 1133 u_int intstat; 1134 uint32_t paddr; 1135 1136 aha = (struct aha_softc *)arg; 1137 while (((intstat = aha_inb(aha, INTSTAT_REG)) & INTR_PENDING) != 0) { 1138 if ((intstat & CMD_COMPLETE) != 0) { 1139 aha->latched_status = aha_inb(aha, STATUS_REG); 1140 aha->command_cmp = TRUE; 1141 } 1142 1143 aha_outb(aha, CONTROL_REG, RESET_INTR); 1144 1145 if ((intstat & IMB_LOADED) != 0) { 1146 while (aha->cur_inbox->comp_code != AMBI_FREE) { 1147 paddr = aha_a24tou(aha->cur_inbox->ccb_addr); 1148 ahadone(aha, ahaccbptov(aha, paddr), 1149 aha->cur_inbox->comp_code); 1150 aha->cur_inbox->comp_code = AMBI_FREE; 1151 ahanextinbox(aha); 1152 } 1153 } 1154 1155 if ((intstat & SCSI_BUS_RESET) != 0) { 1156 ahareset(aha, /*hardreset*/FALSE); 1157 } 1158 } 1159} 1160 1161static void 1162ahadone(struct aha_softc *aha, struct aha_ccb *accb, aha_mbi_comp_code_t comp_code) 1163{ 1164 union ccb *ccb; 1165 struct ccb_scsiio *csio; 1166 1167 ccb = accb->ccb; 1168 csio = &accb->ccb->csio; 1169 1170 if ((accb->flags & ACCB_ACTIVE) == 0) { 1171 printf("%s: ahadone - Attempt to free non-active ACCB %p\n", 1172 aha_name(aha), (void *)accb); 1173 return; 1174 } 1175 1176 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1177 bus_dmasync_op_t op; 1178 1179 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1180 op = BUS_DMASYNC_POSTREAD; 1181 else 1182 op = BUS_DMASYNC_POSTWRITE; 1183 bus_dmamap_sync(aha->buffer_dmat, accb->dmamap, op); 1184 bus_dmamap_unload(aha->buffer_dmat, accb->dmamap); 1185 } 1186 1187 if (accb == aha->recovery_accb) { 1188 /* 1189 * The recovery ACCB does not have a CCB associated 1190 * with it, so short circuit the normal error handling. 1191 * We now traverse our list of pending CCBs and process 1192 * any that were terminated by the recovery CCBs action. 1193 * We also reinstate timeouts for all remaining, pending, 1194 * CCBs. 1195 */ 1196 struct cam_path *path; 1197 struct ccb_hdr *ccb_h; 1198 cam_status error; 1199 1200 /* Notify all clients that a BDR occured */ 1201 error = xpt_create_path(&path, /*periph*/NULL, 1202 cam_sim_path(aha->sim), accb->hccb.target, 1203 CAM_LUN_WILDCARD); 1204 1205 if (error == CAM_REQ_CMP) 1206 xpt_async(AC_SENT_BDR, path, NULL); 1207 1208 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1209 while (ccb_h != NULL) { 1210 struct aha_ccb *pending_accb; 1211 1212 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1213 if (pending_accb->hccb.target == accb->hccb.target) { 1214 pending_accb->hccb.ahastat = AHASTAT_HA_BDR; 1215 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1216 ahadone(aha, pending_accb, AMBI_ERROR); 1217 } else { 1218 ccb_h->timeout_ch = timeout(ahatimeout, 1219 (caddr_t)pending_accb, 1220 (ccb_h->timeout * hz) / 1000); 1221 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1222 } 1223 } 1224 printf("%s: No longer in timeout\n", aha_name(aha)); 1225 return; 1226 } 1227 1228 untimeout(ahatimeout, accb, ccb->ccb_h.timeout_ch); 1229 1230 switch (comp_code) { 1231 case AMBI_FREE: 1232 printf("%s: ahadone - CCB completed with free status!\n", 1233 aha_name(aha)); 1234 break; 1235 case AMBI_NOT_FOUND: 1236 printf("%s: ahadone - CCB Abort failed to find CCB\n", 1237 aha_name(aha)); 1238 break; 1239 case AMBI_ABORT: 1240 case AMBI_ERROR: 1241 /* An error occured */ 1242 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1243 csio->resid = 0; 1244 else 1245 csio->resid = aha_a24tou(accb->hccb.data_len); 1246 switch(accb->hccb.ahastat) { 1247 case AHASTAT_DATARUN_ERROR: 1248 { 1249 if (csio->resid <= 0) { 1250 csio->ccb_h.status = CAM_DATA_RUN_ERR; 1251 break; 1252 } 1253 /* FALLTHROUGH */ 1254 } 1255 case AHASTAT_NOERROR: 1256 csio->scsi_status = accb->hccb.sdstat; 1257 csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR; 1258 switch(csio->scsi_status) { 1259 case SCSI_STATUS_CHECK_COND: 1260 case SCSI_STATUS_CMD_TERMINATED: 1261 csio->ccb_h.status |= CAM_AUTOSNS_VALID; 1262 /* 1263 * The aha writes the sense data at different 1264 * offsets based on the scsi cmd len 1265 */ 1266 bcopy((caddr_t) &accb->hccb.scsi_cdb + 1267 accb->hccb.cmd_len, 1268 (caddr_t) &csio->sense_data, 1269 accb->hccb.sense_len); 1270 break; 1271 default: 1272 break; 1273 case SCSI_STATUS_OK: 1274 csio->ccb_h.status = CAM_REQ_CMP; 1275 break; 1276 } 1277 break; 1278 case AHASTAT_SELTIMEOUT: 1279 csio->ccb_h.status = CAM_SEL_TIMEOUT; 1280 break; 1281 case AHASTAT_UNEXPECTED_BUSFREE: 1282 csio->ccb_h.status = CAM_UNEXP_BUSFREE; 1283 break; 1284 case AHASTAT_INVALID_PHASE: 1285 csio->ccb_h.status = CAM_SEQUENCE_FAIL; 1286 break; 1287 case AHASTAT_INVALID_ACTION_CODE: 1288 panic("%s: Inavlid Action code", aha_name(aha)); 1289 break; 1290 case AHASTAT_INVALID_OPCODE: 1291 if (accb->hccb.opcode < INITIATOR_CCB_WRESID) 1292 panic("%s: Invalid CCB Opcode %x hccb = %p", 1293 aha_name(aha), accb->hccb.opcode, 1294 &accb->hccb); 1295 printf("%s: AHA-1540A detected, compensating\n", 1296 aha_name(aha)); 1297 aha->ccb_sg_opcode = INITIATOR_SG_CCB; 1298 aha->ccb_ccb_opcode = INITIATOR_CCB; 1299 xpt_freeze_devq(ccb->ccb_h.path, /*count*/1); 1300 csio->ccb_h.status = CAM_REQUEUE_REQ; 1301 break; 1302 case AHASTAT_LINKED_CCB_LUN_MISMATCH: 1303 /* We don't even support linked commands... */ 1304 panic("%s: Linked CCB Lun Mismatch", aha_name(aha)); 1305 break; 1306 case AHASTAT_INVALID_CCB_OR_SG_PARAM: 1307 panic("%s: Invalid CCB or SG list", aha_name(aha)); 1308 break; 1309 case AHASTAT_HA_SCSI_BUS_RESET: 1310 if ((csio->ccb_h.status & CAM_STATUS_MASK) 1311 != CAM_CMD_TIMEOUT) 1312 csio->ccb_h.status = CAM_SCSI_BUS_RESET; 1313 break; 1314 case AHASTAT_HA_BDR: 1315 if ((accb->flags & ACCB_DEVICE_RESET) == 0) 1316 csio->ccb_h.status = CAM_BDR_SENT; 1317 else 1318 csio->ccb_h.status = CAM_CMD_TIMEOUT; 1319 break; 1320 } 1321 if (csio->ccb_h.status != CAM_REQ_CMP) { 1322 xpt_freeze_devq(csio->ccb_h.path, /*count*/1); 1323 csio->ccb_h.status |= CAM_DEV_QFRZN; 1324 } 1325 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1326 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1327 ahafreeccb(aha, accb); 1328 xpt_done(ccb); 1329 break; 1330 case AMBI_OK: 1331 /* All completed without incident */ 1332 /* XXX DO WE NEED TO COPY SENSE BYTES HERE???? XXX */ 1333 /* I don't think so since it works???? */ 1334 ccb->ccb_h.status |= CAM_REQ_CMP; 1335 if ((accb->flags & ACCB_RELEASE_SIMQ) != 0) 1336 ccb->ccb_h.status |= CAM_RELEASE_SIMQ; 1337 ahafreeccb(aha, accb); 1338 xpt_done(ccb); 1339 break; 1340 } 1341} 1342 1343static int 1344ahareset(struct aha_softc* aha, int hard_reset) 1345{ 1346 struct ccb_hdr *ccb_h; 1347 u_int status; 1348 u_int timeout; 1349 uint8_t reset_type; 1350 1351 if (hard_reset != 0) 1352 reset_type = HARD_RESET; 1353 else 1354 reset_type = SOFT_RESET; 1355 aha_outb(aha, CONTROL_REG, reset_type); 1356 1357 /* Wait 5sec. for Diagnostic start */ 1358 timeout = 5 * 10000; 1359 while (--timeout) { 1360 status = aha_inb(aha, STATUS_REG); 1361 if ((status & DIAG_ACTIVE) != 0) 1362 break; 1363 DELAY(100); 1364 } 1365 if (timeout == 0) { 1366 PRVERB(("%s: ahareset - Diagnostic Active failed to " 1367 "assert. status = 0x%x\n", aha_name(aha), status)); 1368 return (ETIMEDOUT); 1369 } 1370 1371 /* Wait 10sec. for Diagnostic end */ 1372 timeout = 10 * 10000; 1373 while (--timeout) { 1374 status = aha_inb(aha, STATUS_REG); 1375 if ((status & DIAG_ACTIVE) == 0) 1376 break; 1377 DELAY(100); 1378 } 1379 if (timeout == 0) { 1380 panic("%s: ahareset - Diagnostic Active failed to drop. " 1381 "status = 0x%x\n", aha_name(aha), status); 1382 return (ETIMEDOUT); 1383 } 1384 1385 /* Wait for the host adapter to become ready or report a failure */ 1386 timeout = 10000; 1387 while (--timeout) { 1388 status = aha_inb(aha, STATUS_REG); 1389 if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0) 1390 break; 1391 DELAY(100); 1392 } 1393 if (timeout == 0) { 1394 printf("%s: ahareset - Host adapter failed to come ready. " 1395 "status = 0x%x\n", aha_name(aha), status); 1396 return (ETIMEDOUT); 1397 } 1398 1399 /* If the diagnostics failed, tell the user */ 1400 if ((status & DIAG_FAIL) != 0 1401 || (status & HA_READY) == 0) { 1402 printf("%s: ahareset - Adapter failed diagnostics\n", 1403 aha_name(aha)); 1404 1405 if ((status & DATAIN_REG_READY) != 0) 1406 printf("%s: ahareset - Host Adapter Error " 1407 "code = 0x%x\n", aha_name(aha), 1408 aha_inb(aha, DATAIN_REG)); 1409 return (ENXIO); 1410 } 1411 1412 /* If we've attached to the XPT, tell it about the event */ 1413 if (aha->path != NULL) 1414 xpt_async(AC_BUS_RESET, aha->path, NULL); 1415 1416 /* 1417 * Perform completion processing for all outstanding CCBs. 1418 */ 1419 while ((ccb_h = LIST_FIRST(&aha->pending_ccbs)) != NULL) { 1420 struct aha_ccb *pending_accb; 1421 1422 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1423 pending_accb->hccb.ahastat = AHASTAT_HA_SCSI_BUS_RESET; 1424 ahadone(aha, pending_accb, AMBI_ERROR); 1425 } 1426 1427 /* If we've allocated mailboxes, initialize them */ 1428 /* Must be done after we've aborted our queue, or aha_cmd fails */ 1429 if (aha->init_level > 4) 1430 ahainitmboxes(aha); 1431 1432 return (0); 1433} 1434 1435/* 1436 * Send a command to the adapter. 1437 */ 1438int 1439aha_cmd(struct aha_softc *aha, aha_op_t opcode, uint8_t *params, 1440 u_int param_len, uint8_t *reply_data, u_int reply_len, 1441 u_int cmd_timeout) 1442{ 1443 u_int timeout; 1444 u_int status; 1445 u_int saved_status; 1446 u_int intstat; 1447 u_int reply_buf_size; 1448 int s; 1449 int cmd_complete; 1450 int error; 1451 1452 /* No data returned to start */ 1453 reply_buf_size = reply_len; 1454 reply_len = 0; 1455 intstat = 0; 1456 cmd_complete = 0; 1457 saved_status = 0; 1458 error = 0; 1459 1460 /* 1461 * All commands except for the "start mailbox" and the "enable 1462 * outgoing mailbox read interrupt" commands cannot be issued 1463 * while there are pending transactions. Freeze our SIMQ 1464 * and wait for all completions to occur if necessary. 1465 */ 1466 timeout = 10000; 1467 s = splcam(); 1468 while (LIST_FIRST(&aha->pending_ccbs) != NULL && --timeout) { 1469 /* Fire the interrupt handler in case interrupts are blocked */ 1470 aha_intr(aha); 1471 splx(s); 1472 DELAY(10); 1473 s = splcam(); 1474 } 1475 splx(s); 1476 1477 if (timeout == 0) { 1478 printf("%s: aha_cmd: Timeout waiting for adapter idle\n", 1479 aha_name(aha)); 1480 return (ETIMEDOUT); 1481 } 1482 aha->command_cmp = 0; 1483 /* 1484 * Wait up to 10 sec. for the adapter to become 1485 * ready to accept commands. 1486 */ 1487 timeout = 100000; 1488 while (--timeout) { 1489 status = aha_inb(aha, STATUS_REG); 1490 if ((status & HA_READY) != 0 && (status & CMD_REG_BUSY) == 0) 1491 break; 1492 /* 1493 * Throw away any pending data which may be 1494 * left over from earlier commands that we 1495 * timedout on. 1496 */ 1497 if ((status & DATAIN_REG_READY) != 0) 1498 (void)aha_inb(aha, DATAIN_REG); 1499 DELAY(100); 1500 } 1501 if (timeout == 0) { 1502 printf("%s: aha_cmd: Timeout waiting for adapter ready, " 1503 "status = 0x%x\n", aha_name(aha), status); 1504 return (ETIMEDOUT); 1505 } 1506 1507 /* 1508 * Send the opcode followed by any necessary parameter bytes. 1509 */ 1510 aha_outb(aha, COMMAND_REG, opcode); 1511 1512 /* 1513 * Wait for up to 1sec to get the parameter list sent 1514 */ 1515 timeout = 10000; 1516 while (param_len && --timeout) { 1517 DELAY(100); 1518 s = splcam(); 1519 status = aha_inb(aha, STATUS_REG); 1520 intstat = aha_inb(aha, INTSTAT_REG); 1521 splx(s); 1522 1523 if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1524 == (INTR_PENDING|CMD_COMPLETE)) { 1525 saved_status = status; 1526 cmd_complete = 1; 1527 break; 1528 } 1529 1530 if (aha->command_cmp != 0) { 1531 saved_status = aha->latched_status; 1532 cmd_complete = 1; 1533 break; 1534 } 1535 if ((status & DATAIN_REG_READY) != 0) 1536 break; 1537 if ((status & CMD_REG_BUSY) == 0) { 1538 aha_outb(aha, COMMAND_REG, *params++); 1539 param_len--; 1540 timeout = 10000; 1541 } 1542 } 1543 if (timeout == 0) { 1544 printf("%s: aha_cmd: Timeout sending parameters, " 1545 "status = 0x%x\n", aha_name(aha), status); 1546 error = ETIMEDOUT; 1547 } 1548 1549 /* 1550 * For all other commands, we wait for any output data 1551 * and the final comand completion interrupt. 1552 */ 1553 while (cmd_complete == 0 && --cmd_timeout) { 1554 1555 s = splcam(); 1556 status = aha_inb(aha, STATUS_REG); 1557 intstat = aha_inb(aha, INTSTAT_REG); 1558 splx(s); 1559 1560 if (aha->command_cmp != 0) { 1561 cmd_complete = 1; 1562 saved_status = aha->latched_status; 1563 } else if ((intstat & (INTR_PENDING|CMD_COMPLETE)) 1564 == (INTR_PENDING|CMD_COMPLETE)) { 1565 /* 1566 * Our poll (in case interrupts are blocked) 1567 * saw the CMD_COMPLETE interrupt. 1568 */ 1569 cmd_complete = 1; 1570 saved_status = status; 1571 } 1572 if ((status & DATAIN_REG_READY) != 0) { 1573 uint8_t data; 1574 1575 data = aha_inb(aha, DATAIN_REG); 1576 if (reply_len < reply_buf_size) { 1577 *reply_data++ = data; 1578 } else { 1579 printf("%s: aha_cmd - Discarded reply data " 1580 "byte for opcode 0x%x\n", aha_name(aha), 1581 opcode); 1582 } 1583 /* 1584 * Reset timeout to ensure at least a second 1585 * between response bytes. 1586 */ 1587 cmd_timeout = MAX(cmd_timeout, 10000); 1588 reply_len++; 1589 } 1590 DELAY(100); 1591 } 1592 if (cmd_timeout == 0) { 1593 printf("%s: aha_cmd: Timeout waiting for reply data and " 1594 "command complete.\n%s: status = 0x%x, intstat = 0x%x, " 1595 "reply_len = %d\n", aha_name(aha), aha_name(aha), status, 1596 intstat, reply_len); 1597 return (ETIMEDOUT); 1598 } 1599 1600 /* 1601 * Clear any pending interrupts. Block interrupts so our 1602 * interrupt handler is not re-entered. 1603 */ 1604 s = splcam(); 1605 aha_intr(aha); 1606 splx(s); 1607 1608 if (error != 0) 1609 return (error); 1610 1611 /* 1612 * If the command was rejected by the controller, tell the caller. 1613 */ 1614 if ((saved_status & CMD_INVALID) != 0) { 1615 PRVERB(("%s: Invalid Command 0x%x\n", aha_name(aha), opcode)); 1616 /* 1617 * Some early adapters may not recover properly from 1618 * an invalid command. If it appears that the controller 1619 * has wedged (i.e. status was not cleared by our interrupt 1620 * reset above), perform a soft reset. 1621 */ 1622 DELAY(1000); 1623 status = aha_inb(aha, STATUS_REG); 1624 if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY| 1625 CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0 1626 || (status & (HA_READY|INIT_REQUIRED)) 1627 != (HA_READY|INIT_REQUIRED)) 1628 ahareset(aha, /*hard_reset*/FALSE); 1629 return (EINVAL); 1630 } 1631 1632 if (param_len > 0) { 1633 /* The controller did not accept the full argument list */ 1634 PRVERB(("%s: Controller did not accept full argument list " 1635 "(%d > 0)\n", aha_name(aha), param_len)); 1636 return (E2BIG); 1637 } 1638 1639 if (reply_len != reply_buf_size) { 1640 /* Too much or too little data received */ 1641 PRVERB(("%s: Too much or too little data received (%d != %d)\n", 1642 aha_name(aha), reply_len, reply_buf_size)); 1643 return (EMSGSIZE); 1644 } 1645 1646 /* We were successful */ 1647 return (0); 1648} 1649 1650static int 1651ahainitmboxes(struct aha_softc *aha) 1652{ 1653 int error; 1654 init_24b_mbox_params_t init_mbox; 1655 1656 bzero(aha->in_boxes, sizeof(aha_mbox_in_t) * aha->num_boxes); 1657 bzero(aha->out_boxes, sizeof(aha_mbox_out_t) * aha->num_boxes); 1658 aha->cur_inbox = aha->in_boxes; 1659 aha->last_inbox = aha->in_boxes + aha->num_boxes - 1; 1660 aha->cur_outbox = aha->out_boxes; 1661 aha->last_outbox = aha->out_boxes + aha->num_boxes - 1; 1662 1663 /* Tell the adapter about them */ 1664 init_mbox.num_mboxes = aha->num_boxes; 1665 ahautoa24(aha->mailbox_physbase, init_mbox.base_addr); 1666 error = aha_cmd(aha, AOP_INITIALIZE_MBOX, (uint8_t *)&init_mbox, 1667 /*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL, 1668 /*reply_len*/0, DEFAULT_CMD_TIMEOUT); 1669 1670 if (error != 0) 1671 printf("ahainitmboxes: Initialization command failed\n"); 1672 return (error); 1673} 1674 1675/* 1676 * Update the XPT's idea of the negotiated transfer 1677 * parameters for a particular target. 1678 */ 1679static void 1680ahafetchtransinfo(struct aha_softc *aha, struct ccb_trans_settings* cts) 1681{ 1682 setup_data_t setup_info; 1683 u_int target; 1684 u_int targ_offset; 1685 u_int sync_period; 1686 int error; 1687 uint8_t param; 1688 targ_syncinfo_t sync_info; 1689 1690 target = cts->ccb_h.target_id; 1691 targ_offset = (target & 0x7); 1692 1693 /* 1694 * Inquire Setup Information. This command retreives 1695 * the sync info for older models. 1696 */ 1697 param = sizeof(setup_info); 1698 error = aha_cmd(aha, AOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1, 1699 (uint8_t*)&setup_info, sizeof(setup_info), DEFAULT_CMD_TIMEOUT); 1700 1701 if (error != 0) { 1702 printf("%s: ahafetchtransinfo - Inquire Setup Info Failed %d\n", 1703 aha_name(aha), error); 1704 return; 1705 } 1706 1707 sync_info = setup_info.syncinfo[targ_offset]; 1708 1709 if (sync_info.sync == 0) 1710 cts->sync_offset = 0; 1711 else 1712 cts->sync_offset = sync_info.offset; 1713 1714 cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT; 1715 1716 if (aha->boardid >= BOARD_1542CF) 1717 sync_period = 1000; 1718 else 1719 sync_period = 2000; 1720 sync_period += 500 * sync_info.period; 1721 1722 /* Convert ns value to standard SCSI sync rate */ 1723 if (cts->sync_offset != 0) 1724 cts->sync_period = scsi_calc_syncparam(sync_period); 1725 else 1726 cts->sync_period = 0; 1727 1728 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1729 | CCB_TRANS_SYNC_OFFSET_VALID 1730 | CCB_TRANS_BUS_WIDTH_VALID; 1731 xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts); 1732} 1733 1734static void 1735ahamapmboxes(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->mailbox_physbase = segs->ds_addr; 1741} 1742 1743static void 1744ahamapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1745{ 1746 struct aha_softc* aha; 1747 1748 aha = (struct aha_softc*)arg; 1749 aha->aha_ccb_physbase = segs->ds_addr; 1750} 1751 1752static void 1753ahamapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error) 1754{ 1755 1756 struct aha_softc* aha; 1757 1758 aha = (struct aha_softc*)arg; 1759 SLIST_FIRST(&aha->sg_maps)->sg_physaddr = segs->ds_addr; 1760} 1761 1762static void 1763ahapoll(struct cam_sim *sim) 1764{ 1765 aha_intr(cam_sim_softc(sim)); 1766} 1767 1768static void 1769ahatimeout(void *arg) 1770{ 1771 struct aha_ccb *accb; 1772 union ccb *ccb; 1773 struct aha_softc *aha; 1774 int s; 1775 uint32_t paddr; 1776 struct ccb_hdr *ccb_h; 1777 1778 accb = (struct aha_ccb *)arg; 1779 ccb = accb->ccb; 1780 aha = (struct aha_softc *)ccb->ccb_h.ccb_aha_ptr; 1781 xpt_print_path(ccb->ccb_h.path); 1782 printf("CCB %p - timed out\n", (void *)accb); 1783 1784 s = splcam(); 1785 1786 if ((accb->flags & ACCB_ACTIVE) == 0) { 1787 xpt_print_path(ccb->ccb_h.path); 1788 printf("CCB %p - timed out CCB already completed\n", 1789 (void *)accb); 1790 splx(s); 1791 return; 1792 } 1793 1794 /* 1795 * In order to simplify the recovery process, we ask the XPT 1796 * layer to halt the queue of new transactions and we traverse 1797 * the list of pending CCBs and remove their timeouts. This 1798 * means that the driver attempts to clear only one error 1799 * condition at a time. In general, timeouts that occur 1800 * close together are related anyway, so there is no benefit 1801 * in attempting to handle errors in parrallel. Timeouts will 1802 * be reinstated when the recovery process ends. 1803 */ 1804 if ((accb->flags & ACCB_DEVICE_RESET) == 0) { 1805 if ((accb->flags & ACCB_RELEASE_SIMQ) == 0) { 1806 xpt_freeze_simq(aha->sim, /*count*/1); 1807 accb->flags |= ACCB_RELEASE_SIMQ; 1808 } 1809 1810 ccb_h = LIST_FIRST(&aha->pending_ccbs); 1811 while (ccb_h != NULL) { 1812 struct aha_ccb *pending_accb; 1813 1814 pending_accb = (struct aha_ccb *)ccb_h->ccb_accb_ptr; 1815 untimeout(ahatimeout, pending_accb, ccb_h->timeout_ch); 1816 ccb_h = LIST_NEXT(ccb_h, sim_links.le); 1817 } 1818 } 1819 1820 if ((accb->flags & ACCB_DEVICE_RESET) != 0 1821 || aha->cur_outbox->action_code != AMBO_FREE) { 1822 /* 1823 * Try a full host adapter/SCSI bus reset. 1824 * We do this only if we have already attempted 1825 * to clear the condition with a BDR, or we cannot 1826 * attempt a BDR for lack of mailbox resources. 1827 */ 1828 ccb->ccb_h.status = CAM_CMD_TIMEOUT; 1829 ahareset(aha, /*hardreset*/TRUE); 1830 printf("%s: No longer in timeout\n", aha_name(aha)); 1831 } else { 1832 /* 1833 * Send a Bus Device Reset message: 1834 * The target that is holding up the bus may not 1835 * be the same as the one that triggered this timeout 1836 * (different commands have different timeout lengths), 1837 * but we have no way of determining this from our 1838 * timeout handler. Our strategy here is to queue a 1839 * BDR message to the target of the timed out command. 1840 * If this fails, we'll get another timeout 2 seconds 1841 * later which will attempt a bus reset. 1842 */ 1843 accb->flags |= ACCB_DEVICE_RESET; 1844 ccb->ccb_h.timeout_ch = timeout(ahatimeout, (caddr_t)accb, 2 * hz); 1845 aha->recovery_accb->hccb.opcode = INITIATOR_BUS_DEV_RESET; 1846 1847 /* No Data Transfer */ 1848 aha->recovery_accb->hccb.datain = TRUE; 1849 aha->recovery_accb->hccb.dataout = TRUE; 1850 aha->recovery_accb->hccb.ahastat = 0; 1851 aha->recovery_accb->hccb.sdstat = 0; 1852 aha->recovery_accb->hccb.target = ccb->ccb_h.target_id; 1853 1854 /* Tell the adapter about this command */ 1855 paddr = ahaccbvtop(aha, aha->recovery_accb); 1856 ahautoa24(paddr, aha->cur_outbox->ccb_addr); 1857 aha->cur_outbox->action_code = AMBO_START; 1858 aha_outb(aha, COMMAND_REG, AOP_START_MBOX); 1859 ahanextoutbox(aha); 1860 } 1861 1862 splx(s); 1863} 1864 1865int 1866aha_detach(struct aha_softc *aha) 1867{ 1868 xpt_async(AC_LOST_DEVICE, aha->path, NULL); 1869 xpt_free_path(aha->path); 1870 xpt_bus_deregister(cam_sim_path(aha->sim)); 1871 cam_sim_free(aha->sim, /*free_devq*/TRUE); 1872 return (0); 1873} 1874