aic7xxx_osm.c revision 76634
1/* 2 * Bus independent FreeBSD shim for the aic7xxx based adaptec SCSI controllers 3 * 4 * Copyright (c) 1994-2001 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * Alternatively, this software may be distributed under the terms of the 17 * GNU Public License ("GPL"). 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $Id$ 32 * 33 * $FreeBSD: head/sys/dev/aic7xxx/aic7xxx_osm.c 76634 2001-05-15 19:41:12Z gibbs $ 34 */ 35 36#include <dev/aic7xxx/aic7xxx_freebsd.h> 37#include <dev/aic7xxx/aic7xxx_inline.h> 38 39#ifndef AHC_TMODE_ENABLE 40#define AHC_TMODE_ENABLE 0 41#endif 42 43#define ccb_scb_ptr spriv_ptr0 44 45#ifdef AHC_DEBUG 46static int ahc_debug = AHC_DEBUG; 47#endif 48 49#if UNUSED 50static void ahc_dump_targcmd(struct target_cmd *cmd); 51#endif 52static int ahc_modevent(module_t mod, int type, void *data); 53static void ahc_action(struct cam_sim *sim, union ccb *ccb); 54static void ahc_get_tran_settings(struct ahc_softc *ahc, 55 int our_id, char channel, 56 struct ccb_trans_settings *cts); 57static void ahc_async(void *callback_arg, uint32_t code, 58 struct cam_path *path, void *arg); 59static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 60 int nsegments, int error); 61static void ahc_poll(struct cam_sim *sim); 62static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 63 struct ccb_scsiio *csio, struct scb *scb); 64static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, 65 union ccb *ccb); 66static int ahc_create_path(struct ahc_softc *ahc, 67 char channel, u_int target, u_int lun, 68 struct cam_path **path); 69 70static void ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb); 71 72static int 73ahc_create_path(struct ahc_softc *ahc, char channel, u_int target, 74 u_int lun, struct cam_path **path) 75{ 76 path_id_t path_id; 77 78 if (channel == 'B') 79 path_id = cam_sim_path(ahc->platform_data->sim_b); 80 else 81 path_id = cam_sim_path(ahc->platform_data->sim); 82 83 return (xpt_create_path(path, /*periph*/NULL, 84 path_id, target, lun)); 85} 86 87/* 88 * Attach all the sub-devices we can find 89 */ 90int 91ahc_attach(struct ahc_softc *ahc) 92{ 93 char ahc_info[256]; 94 struct ccb_setasync csa; 95 struct cam_devq *devq; 96 int bus_id; 97 int bus_id2; 98 struct cam_sim *sim; 99 struct cam_sim *sim2; 100 struct cam_path *path; 101 struct cam_path *path2; 102 long s; 103 int count; 104 int error; 105 106 count = 0; 107 sim = NULL; 108 sim2 = NULL; 109 110 ahc_controller_info(ahc, ahc_info); 111 printf("%s\n", ahc_info); 112 ahc_lock(ahc, &s); 113 /* Hook up our interrupt handler */ 114 if ((error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq, 115 INTR_TYPE_CAM|INTR_ENTROPY, ahc_platform_intr, ahc, 116 &ahc->platform_data->ih)) != 0) { 117 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n", 118 error); 119 goto fail; 120 } 121 122 /* 123 * Attach secondary channel first if the user has 124 * declared it the primary channel. 125 */ 126 if ((ahc->features & AHC_TWIN) != 0 127 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 128 bus_id = 1; 129 bus_id2 = 0; 130 } else { 131 bus_id = 0; 132 bus_id2 = 1; 133 } 134 135 /* 136 * Create the device queue for our SIM(s). 137 */ 138 devq = cam_simq_alloc(AHC_MAX_QUEUE); 139 if (devq == NULL) 140 goto fail; 141 142 /* 143 * Construct our first channel SIM entry 144 */ 145 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc, 146 device_get_unit(ahc->dev_softc), 147 1, AHC_MAX_QUEUE, devq); 148 if (sim == NULL) { 149 cam_simq_free(devq); 150 goto fail; 151 } 152 153 if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) { 154 cam_sim_free(sim, /*free_devq*/TRUE); 155 sim = NULL; 156 goto fail; 157 } 158 159 if (xpt_create_path(&path, /*periph*/NULL, 160 cam_sim_path(sim), CAM_TARGET_WILDCARD, 161 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 162 xpt_bus_deregister(cam_sim_path(sim)); 163 cam_sim_free(sim, /*free_devq*/TRUE); 164 sim = NULL; 165 goto fail; 166 } 167 168 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 169 csa.ccb_h.func_code = XPT_SASYNC_CB; 170 csa.event_enable = AC_LOST_DEVICE; 171 csa.callback = ahc_async; 172 csa.callback_arg = sim; 173 xpt_action((union ccb *)&csa); 174 count++; 175 176 if (ahc->features & AHC_TWIN) { 177 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc", 178 ahc, device_get_unit(ahc->dev_softc), 1, 179 AHC_MAX_QUEUE, devq); 180 181 if (sim2 == NULL) { 182 printf("ahc_attach: Unable to attach second " 183 "bus due to resource shortage"); 184 goto fail; 185 } 186 187 if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) { 188 printf("ahc_attach: Unable to attach second " 189 "bus due to resource shortage"); 190 /* 191 * We do not want to destroy the device queue 192 * because the first bus is using it. 193 */ 194 cam_sim_free(sim2, /*free_devq*/FALSE); 195 goto fail; 196 } 197 198 if (xpt_create_path(&path2, /*periph*/NULL, 199 cam_sim_path(sim2), 200 CAM_TARGET_WILDCARD, 201 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 202 xpt_bus_deregister(cam_sim_path(sim2)); 203 cam_sim_free(sim2, /*free_devq*/FALSE); 204 sim2 = NULL; 205 goto fail; 206 } 207 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5); 208 csa.ccb_h.func_code = XPT_SASYNC_CB; 209 csa.event_enable = AC_LOST_DEVICE; 210 csa.callback = ahc_async; 211 csa.callback_arg = sim2; 212 xpt_action((union ccb *)&csa); 213 count++; 214 } 215 216fail: 217 if ((ahc->features & AHC_TWIN) != 0 218 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 219 ahc->platform_data->sim_b = sim; 220 ahc->platform_data->path_b = path; 221 ahc->platform_data->sim = sim2; 222 ahc->platform_data->path = path2; 223 } else { 224 ahc->platform_data->sim = sim; 225 ahc->platform_data->path = path; 226 ahc->platform_data->sim_b = sim2; 227 ahc->platform_data->path_b = path2; 228 } 229 ahc_unlock(ahc, &s); 230 231 if (count != 0) 232 /* We have to wait until after any system dumps... */ 233 ahc->platform_data->eh = 234 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown, 235 ahc, SHUTDOWN_PRI_DEFAULT); 236 237 return (count); 238} 239 240/* 241 * Catch an interrupt from the adapter 242 */ 243void 244ahc_platform_intr(void *arg) 245{ 246 struct ahc_softc *ahc; 247 248 ahc = (struct ahc_softc *)arg; 249 ahc_intr(ahc); 250} 251 252/* 253 * We have an scb which has been processed by the 254 * adaptor, now we look to see how the operation 255 * went. 256 */ 257void 258ahc_done(struct ahc_softc *ahc, struct scb *scb) 259{ 260 union ccb *ccb; 261 262 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 263 ("ahc_done - scb %d\n", scb->hscb->tag)); 264 265 ccb = scb->io_ctx; 266 LIST_REMOVE(scb, pending_links); 267 if ((scb->flags & SCB_UNTAGGEDQ) != 0) { 268 struct scb_tailq *untagged_q; 269 int target_offset; 270 271 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 272 untagged_q = &ahc->untagged_queues[target_offset]; 273 TAILQ_REMOVE(untagged_q, scb, links.tqe); 274 scb->flags &= ~SCB_UNTAGGEDQ; 275 ahc_run_untagged_queue(ahc, untagged_q); 276 } 277 278 untimeout(ahc_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch); 279 280 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 281 bus_dmasync_op_t op; 282 283 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 284 op = BUS_DMASYNC_POSTREAD; 285 else 286 op = BUS_DMASYNC_POSTWRITE; 287 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 288 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 289 } 290 291 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 292 struct cam_path *ccb_path; 293 294 /* 295 * If we have finally disconnected, clean up our 296 * pending device state. 297 * XXX - There may be error states that cause where 298 * we will remain connected. 299 */ 300 ccb_path = ccb->ccb_h.path; 301 if (ahc->pending_device != NULL 302 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) { 303 304 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 305 ahc->pending_device = NULL; 306 } else { 307 xpt_print_path(ccb->ccb_h.path); 308 printf("Still disconnected\n"); 309 ahc_freeze_ccb(ccb); 310 } 311 } 312 313 if (ahc_get_transaction_status(scb) == CAM_REQ_INPROG) 314 ccb->ccb_h.status |= CAM_REQ_CMP; 315 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 316 ahc_free_scb(ahc, scb); 317 xpt_done(ccb); 318 return; 319 } 320 321 /* 322 * If the recovery SCB completes, we have to be 323 * out of our timeout. 324 */ 325 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 326 struct scb *list_scb; 327 328 /* 329 * We were able to complete the command successfully, 330 * so reinstate the timeouts for all other pending 331 * commands. 332 */ 333 LIST_FOREACH(list_scb, &ahc->pending_scbs, pending_links) { 334 union ccb *ccb; 335 uint64_t time; 336 337 ccb = list_scb->io_ctx; 338 if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) 339 continue; 340 341 time = ccb->ccb_h.timeout; 342 time *= hz; 343 time /= 1000; 344 ccb->ccb_h.timeout_ch = 345 timeout(ahc_timeout, list_scb, time); 346 } 347 348 if (ahc_get_transaction_status(scb) == CAM_BDR_SENT 349 || ahc_get_transaction_status(scb) == CAM_REQ_ABORTED) 350 ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT); 351 ahc_print_path(ahc, scb); 352 printf("no longer in timeout, status = %x\n", 353 ccb->ccb_h.status); 354 } 355 356 /* Don't clobber any existing error state */ 357 if (ahc_get_transaction_status(scb) == CAM_REQ_INPROG) { 358 ccb->ccb_h.status |= CAM_REQ_CMP; 359 } else if ((scb->flags & SCB_SENSE) != 0) { 360 /* 361 * We performed autosense retrieval. 362 * 363 * Zero any sense not transferred by the 364 * device. The SCSI spec mandates that any 365 * untransfered data should be assumed to be 366 * zero. Complete the 'bounce' of sense information 367 * through buffers accessible via bus-space by 368 * copying it into the clients csio. 369 */ 370 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 371 memcpy(&ccb->csio.sense_data, 372 ahc_get_sense_buf(ahc, scb), 373 (scb->sg_list->len & AHC_SG_LEN_MASK) 374 - ccb->csio.sense_resid); 375 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 376 } 377 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 378 ahc_free_scb(ahc, scb); 379 xpt_done(ccb); 380} 381 382static void 383ahc_action(struct cam_sim *sim, union ccb *ccb) 384{ 385 struct ahc_softc *ahc; 386 struct ahc_tmode_lstate *lstate; 387 u_int target_id; 388 u_int our_id; 389 long s; 390 391 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n")); 392 393 ahc = (struct ahc_softc *)cam_sim_softc(sim); 394 395 target_id = ccb->ccb_h.target_id; 396 our_id = SIM_SCSI_ID(ahc, sim); 397 398 switch (ccb->ccb_h.func_code) { 399 /* Common cases first */ 400 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 401 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 402 { 403 struct ahc_tmode_tstate *tstate; 404 cam_status status; 405 406 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 407 &lstate, TRUE); 408 409 if (status != CAM_REQ_CMP) { 410 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 411 /* Response from the black hole device */ 412 tstate = NULL; 413 lstate = ahc->black_hole; 414 } else { 415 ccb->ccb_h.status = status; 416 xpt_done(ccb); 417 break; 418 } 419 } 420 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 421 422 ahc_lock(ahc, &s); 423 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 424 sim_links.sle); 425 ccb->ccb_h.status = CAM_REQ_INPROG; 426 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0) 427 ahc_run_tqinfifo(ahc, /*paused*/FALSE); 428 ahc_unlock(ahc, &s); 429 break; 430 } 431 432 /* 433 * The target_id represents the target we attempt to 434 * select. In target mode, this is the initiator of 435 * the original command. 436 */ 437 our_id = target_id; 438 target_id = ccb->csio.init_id; 439 /* FALLTHROUGH */ 440 } 441 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 442 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 443 { 444 struct scb *scb; 445 struct hardware_scb *hscb; 446 447 if ((ahc->flags & AHC_INITIATORROLE) == 0 448 && (ccb->ccb_h.func_code == XPT_SCSI_IO 449 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 450 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 451 xpt_done(ccb); 452 return; 453 } 454 455 /* 456 * get an scb to use. 457 */ 458 ahc_lock(ahc, &s); 459 if ((scb = ahc_get_scb(ahc)) == NULL) { 460 461 xpt_freeze_simq(sim, /*count*/1); 462 ahc->flags |= AHC_RESOURCE_SHORTAGE; 463 ahc_unlock(ahc, &s); 464 ccb->ccb_h.status = CAM_REQUEUE_REQ; 465 xpt_done(ccb); 466 return; 467 } 468 ahc_unlock(ahc, &s); 469 470 hscb = scb->hscb; 471 472 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 473 ("start scb(%p)\n", scb)); 474 scb->io_ctx = ccb; 475 /* 476 * So we can find the SCB when an abort is requested 477 */ 478 ccb->ccb_h.ccb_scb_ptr = scb; 479 480 /* 481 * Put all the arguments for the xfer in the scb 482 */ 483 hscb->control = 0; 484 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id); 485 hscb->lun = ccb->ccb_h.target_lun; 486 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 487 hscb->cdb_len = 0; 488 scb->flags |= SCB_DEVICE_RESET; 489 hscb->control |= MK_MESSAGE; 490 ahc_execute_scb(scb, NULL, 0, 0); 491 } else { 492 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 493 struct target_data *tdata; 494 495 tdata = &hscb->shared_data.tdata; 496 if (ahc->pending_device == lstate) 497 scb->flags |= SCB_TARGET_IMMEDIATE; 498 hscb->control |= TARGET_SCB; 499 tdata->target_phases = IDENTIFY_SEEN; 500 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 501 tdata->target_phases |= SPHASE_PENDING; 502 tdata->scsi_status = 503 ccb->csio.scsi_status; 504 } 505 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 506 tdata->target_phases |= NO_DISCONNECT; 507 508 tdata->initiator_tag = ccb->csio.tag_id; 509 } 510 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 511 hscb->control |= ccb->csio.tag_action; 512 513 ahc_setup_data(ahc, sim, &ccb->csio, scb); 514 } 515 break; 516 } 517 case XPT_NOTIFY_ACK: 518 case XPT_IMMED_NOTIFY: 519 { 520 struct ahc_tmode_tstate *tstate; 521 struct ahc_tmode_lstate *lstate; 522 cam_status status; 523 524 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 525 &lstate, TRUE); 526 527 if (status != CAM_REQ_CMP) { 528 ccb->ccb_h.status = status; 529 xpt_done(ccb); 530 break; 531 } 532 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 533 sim_links.sle); 534 ccb->ccb_h.status = CAM_REQ_INPROG; 535 ahc_send_lstate_events(ahc, lstate); 536 break; 537 } 538 case XPT_EN_LUN: /* Enable LUN as a target */ 539 ahc_handle_en_lun(ahc, sim, ccb); 540 xpt_done(ccb); 541 break; 542 case XPT_ABORT: /* Abort the specified CCB */ 543 { 544 ahc_abort_ccb(ahc, sim, ccb); 545 break; 546 } 547 case XPT_SET_TRAN_SETTINGS: 548 { 549#ifdef AHC_NEW_TRAN_SETTINGS 550 struct ahc_devinfo devinfo; 551 struct ccb_trans_settings *cts; 552 struct ccb_trans_settings_scsi *scsi; 553 struct ccb_trans_settings_spi *spi; 554 struct ahc_initiator_tinfo *tinfo; 555 struct ahc_tmode_tstate *tstate; 556 uint16_t *discenable; 557 uint16_t *tagenable; 558 u_int update_type; 559 560 cts = &ccb->cts; 561 scsi = &cts->proto_specific.scsi; 562 spi = &cts->xport_specific.spi; 563 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 564 cts->ccb_h.target_id, 565 cts->ccb_h.target_lun, 566 SIM_CHANNEL(ahc, sim), 567 ROLE_UNKNOWN); 568 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 569 devinfo.our_scsiid, 570 devinfo.target, &tstate); 571 update_type = 0; 572 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 573 update_type |= AHC_TRANS_GOAL; 574 discenable = &tstate->discenable; 575 tagenable = &tstate->tagenable; 576 tinfo->curr.protocol_version = 577 cts->protocol_version; 578 tinfo->curr.transport_version = 579 cts->transport_version; 580 tinfo->goal.protocol_version = 581 cts->protocol_version; 582 tinfo->goal.transport_version = 583 cts->transport_version; 584 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 585 update_type |= AHC_TRANS_USER; 586 discenable = &ahc->user_discenable; 587 tagenable = &ahc->user_tagenable; 588 tinfo->user.protocol_version = 589 cts->protocol_version; 590 tinfo->user.transport_version = 591 cts->transport_version; 592 } else { 593 ccb->ccb_h.status = CAM_REQ_INVALID; 594 xpt_done(ccb); 595 break; 596 } 597 598 ahc_lock(ahc, &s); 599 600 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 601 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 602 *discenable |= devinfo.target_mask; 603 else 604 *discenable &= ~devinfo.target_mask; 605 } 606 607 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 608 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 609 *tagenable |= devinfo.target_mask; 610 else 611 *tagenable &= ~devinfo.target_mask; 612 } 613 614 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 615 ahc_validate_width(ahc, /*tinfo limit*/NULL, 616 &spi->bus_width, ROLE_UNKNOWN); 617 ahc_set_width(ahc, &devinfo, spi->bus_width, 618 update_type, /*paused*/FALSE); 619 } 620 621 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 622 if (update_type == AHC_TRANS_USER) 623 spi->ppr_options = tinfo->user.ppr_options; 624 else 625 spi->ppr_options = tinfo->goal.ppr_options; 626 } 627 628 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 629 if (update_type == AHC_TRANS_USER) 630 spi->sync_offset = tinfo->user.offset; 631 else 632 spi->sync_offset = tinfo->goal.offset; 633 } 634 635 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 636 if (update_type == AHC_TRANS_USER) 637 spi->sync_period = tinfo->user.period; 638 else 639 spi->sync_period = tinfo->goal.period; 640 } 641 642 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 643 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 644 struct ahc_syncrate *syncrate; 645 u_int maxsync; 646 647 if ((ahc->features & AHC_ULTRA2) != 0) 648 maxsync = AHC_SYNCRATE_DT; 649 else if ((ahc->features & AHC_ULTRA) != 0) 650 maxsync = AHC_SYNCRATE_ULTRA; 651 else 652 maxsync = AHC_SYNCRATE_FAST; 653 654 syncrate = ahc_find_syncrate(ahc, &spi->sync_period, 655 &spi->ppr_options, 656 maxsync); 657 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 658 syncrate, &spi->sync_offset, 659 spi->bus_width, ROLE_UNKNOWN); 660 661 /* We use a period of 0 to represent async */ 662 if (spi->sync_offset == 0) { 663 spi->sync_period = 0; 664 spi->ppr_options = 0; 665 } 666 667 ahc_set_syncrate(ahc, &devinfo, syncrate, 668 spi->sync_period, spi->sync_offset, 669 spi->ppr_options, update_type, 670 /*paused*/FALSE); 671 } 672 ahc_unlock(ahc, &s); 673 ccb->ccb_h.status = CAM_REQ_CMP; 674 xpt_done(ccb); 675#else 676 struct ahc_devinfo devinfo; 677 struct ccb_trans_settings *cts; 678 struct ahc_initiator_tinfo *tinfo; 679 struct ahc_tmode_tstate *tstate; 680 uint16_t *discenable; 681 uint16_t *tagenable; 682 u_int update_type; 683 long s; 684 685 cts = &ccb->cts; 686 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 687 cts->ccb_h.target_id, 688 cts->ccb_h.target_lun, 689 SIM_CHANNEL(ahc, sim), 690 ROLE_UNKNOWN); 691 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 692 devinfo.our_scsiid, 693 devinfo.target, &tstate); 694 update_type = 0; 695 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 696 update_type |= AHC_TRANS_GOAL; 697 discenable = &tstate->discenable; 698 tagenable = &tstate->tagenable; 699 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 700 update_type |= AHC_TRANS_USER; 701 discenable = &ahc->user_discenable; 702 tagenable = &ahc->user_tagenable; 703 } else { 704 ccb->ccb_h.status = CAM_REQ_INVALID; 705 xpt_done(ccb); 706 break; 707 } 708 709 ahc_lock(ahc, &s); 710 711 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 712 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) 713 *discenable |= devinfo.target_mask; 714 else 715 *discenable &= ~devinfo.target_mask; 716 } 717 718 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 719 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) 720 *tagenable |= devinfo.target_mask; 721 else 722 *tagenable &= ~devinfo.target_mask; 723 } 724 725 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { 726 ahc_validate_width(ahc, /*tinfo limit*/NULL, 727 &cts->bus_width, ROLE_UNKNOWN); 728 ahc_set_width(ahc, &devinfo, cts->bus_width, 729 update_type, /*paused*/FALSE); 730 } 731 732 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) { 733 if (update_type == AHC_TRANS_USER) 734 cts->sync_offset = tinfo->user.offset; 735 else 736 cts->sync_offset = tinfo->goal.offset; 737 } 738 739 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) { 740 if (update_type == AHC_TRANS_USER) 741 cts->sync_period = tinfo->user.period; 742 else 743 cts->sync_period = tinfo->goal.period; 744 } 745 746 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) 747 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) { 748 struct ahc_syncrate *syncrate; 749 u_int ppr_options; 750 u_int maxsync; 751 752 if ((ahc->features & AHC_ULTRA2) != 0) 753 maxsync = AHC_SYNCRATE_DT; 754 else if ((ahc->features & AHC_ULTRA) != 0) 755 maxsync = AHC_SYNCRATE_ULTRA; 756 else 757 maxsync = AHC_SYNCRATE_FAST; 758 759 ppr_options = 0; 760 if (cts->sync_period <= 9) 761 ppr_options = MSG_EXT_PPR_DT_REQ; 762 763 syncrate = ahc_find_syncrate(ahc, &cts->sync_period, 764 &ppr_options, 765 maxsync); 766 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 767 syncrate, &cts->sync_offset, 768 MSG_EXT_WDTR_BUS_8_BIT, 769 ROLE_UNKNOWN); 770 771 /* We use a period of 0 to represent async */ 772 if (cts->sync_offset == 0) { 773 cts->sync_period = 0; 774 ppr_options = 0; 775 } 776 777 if (ppr_options == MSG_EXT_PPR_DT_REQ 778 && tinfo->user.transport_version >= 3) { 779 tinfo->goal.transport_version = 780 tinfo->user.transport_version; 781 tinfo->curr.transport_version = 782 tinfo->user.transport_version; 783 } 784 785 ahc_set_syncrate(ahc, &devinfo, syncrate, 786 cts->sync_period, cts->sync_offset, 787 ppr_options, update_type, 788 /*paused*/FALSE); 789 } 790 ahc_unlock(ahc, &s); 791 ccb->ccb_h.status = CAM_REQ_CMP; 792 xpt_done(ccb); 793#endif 794 break; 795 } 796 case XPT_GET_TRAN_SETTINGS: 797 /* Get default/user set transfer settings for the target */ 798 { 799 800 ahc_lock(ahc, &s); 801 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim), 802 SIM_CHANNEL(ahc, sim), &ccb->cts); 803 ahc_unlock(ahc, &s); 804 xpt_done(ccb); 805 break; 806 } 807 case XPT_CALC_GEOMETRY: 808 { 809 struct ccb_calc_geometry *ccg; 810 uint32_t size_mb; 811 uint32_t secs_per_cylinder; 812 int extended; 813 814 ccg = &ccb->ccg; 815 size_mb = ccg->volume_size 816 / ((1024L * 1024L) / ccg->block_size); 817 extended = SIM_IS_SCSIBUS_B(ahc, sim) 818 ? ahc->flags & AHC_EXTENDED_TRANS_B 819 : ahc->flags & AHC_EXTENDED_TRANS_A; 820 821 if (size_mb > 1024 && extended) { 822 ccg->heads = 255; 823 ccg->secs_per_track = 63; 824 } else { 825 ccg->heads = 64; 826 ccg->secs_per_track = 32; 827 } 828 secs_per_cylinder = ccg->heads * ccg->secs_per_track; 829 ccg->cylinders = ccg->volume_size / secs_per_cylinder; 830 ccb->ccb_h.status = CAM_REQ_CMP; 831 xpt_done(ccb); 832 break; 833 } 834 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 835 { 836 int found; 837 838 ahc_lock(ahc, &s); 839 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim), 840 /*initiate reset*/TRUE); 841 ahc_unlock(ahc, &s); 842 if (bootverbose) { 843 xpt_print_path(SIM_PATH(ahc, sim)); 844 printf("SCSI bus reset delivered. " 845 "%d SCBs aborted.\n", found); 846 } 847 ccb->ccb_h.status = CAM_REQ_CMP; 848 xpt_done(ccb); 849 break; 850 } 851 case XPT_TERM_IO: /* Terminate the I/O process */ 852 /* XXX Implement */ 853 ccb->ccb_h.status = CAM_REQ_INVALID; 854 xpt_done(ccb); 855 break; 856 case XPT_PATH_INQ: /* Path routing inquiry */ 857 { 858 struct ccb_pathinq *cpi = &ccb->cpi; 859 860 cpi->version_num = 1; /* XXX??? */ 861 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 862 if ((ahc->features & AHC_WIDE) != 0) 863 cpi->hba_inquiry |= PI_WIDE_16; 864 if ((ahc->features & AHC_TARGETMODE) != 0) { 865 cpi->target_sprt = PIT_PROCESSOR 866 | PIT_DISCONNECT 867 | PIT_TERM_IO; 868 } else { 869 cpi->target_sprt = 0; 870 } 871 cpi->hba_misc = 0; 872 cpi->hba_eng_cnt = 0; 873 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7; 874 cpi->max_lun = AHC_NUM_LUNS - 1; 875 if (SIM_IS_SCSIBUS_B(ahc, sim)) { 876 cpi->initiator_id = ahc->our_id_b; 877 if ((ahc->flags & AHC_RESET_BUS_B) == 0) 878 cpi->hba_misc |= PIM_NOBUSRESET; 879 } else { 880 cpi->initiator_id = ahc->our_id; 881 if ((ahc->flags & AHC_RESET_BUS_A) == 0) 882 cpi->hba_misc |= PIM_NOBUSRESET; 883 } 884 cpi->bus_id = cam_sim_bus(sim); 885 cpi->base_transfer_speed = 3300; 886 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 887 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 888 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 889 cpi->unit_number = cam_sim_unit(sim); 890#ifdef AHC_NEW_TRAN_SETTINGS 891 cpi->protocol = PROTO_SCSI; 892 cpi->protocol_version = SCSI_REV_2; 893 cpi->transport = XPORT_SPI; 894 cpi->transport_version = 2; 895 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 896 if ((ahc->features & AHC_DT) != 0) { 897 cpi->transport_version = 3; 898 cpi->xport_specific.spi.ppr_options = 899 SID_SPI_CLOCK_DT_ST; 900 } 901#endif 902 cpi->ccb_h.status = CAM_REQ_CMP; 903 xpt_done(ccb); 904 break; 905 } 906 default: 907 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 908 xpt_done(ccb); 909 break; 910 } 911} 912 913static void 914ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel, 915 struct ccb_trans_settings *cts) 916{ 917#ifdef AHC_NEW_TRAN_SETTINGS 918 struct ahc_devinfo devinfo; 919 struct ccb_trans_settings_scsi *scsi; 920 struct ccb_trans_settings_spi *spi; 921 struct ahc_initiator_tinfo *targ_info; 922 struct ahc_tmode_tstate *tstate; 923 struct ahc_transinfo *tinfo; 924 925 scsi = &cts->proto_specific.scsi; 926 spi = &cts->xport_specific.spi; 927 ahc_compile_devinfo(&devinfo, our_id, 928 cts->ccb_h.target_id, 929 cts->ccb_h.target_lun, 930 channel, ROLE_UNKNOWN); 931 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 932 devinfo.our_scsiid, 933 devinfo.target, &tstate); 934 935 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 936 tinfo = &targ_info->curr; 937 else 938 tinfo = &targ_info->user; 939 940 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 941 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 942 if (cts->type == CTS_TYPE_USER_SETTINGS) { 943 if ((ahc->user_discenable & devinfo.target_mask) != 0) 944 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 945 946 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 947 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 948 } else { 949 if ((tstate->discenable & devinfo.target_mask) != 0) 950 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 951 952 if ((tstate->tagenable & devinfo.target_mask) != 0) 953 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 954 } 955 cts->protocol_version = tinfo->protocol_version; 956 cts->transport_version = tinfo->transport_version; 957 958 spi->sync_period = tinfo->period; 959 spi->sync_offset = tinfo->offset; 960 spi->bus_width = tinfo->width; 961 spi->ppr_options = tinfo->ppr_options; 962 963 cts->protocol = PROTO_SCSI; 964 cts->transport = XPORT_SPI; 965 spi->valid = CTS_SPI_VALID_SYNC_RATE 966 | CTS_SPI_VALID_SYNC_OFFSET 967 | CTS_SPI_VALID_BUS_WIDTH 968 | CTS_SPI_VALID_PPR_OPTIONS; 969 970 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 971 scsi->valid = CTS_SCSI_VALID_TQ; 972 spi->valid |= CTS_SPI_VALID_DISC; 973 } else { 974 scsi->valid = 0; 975 } 976 977 cts->ccb_h.status = CAM_REQ_CMP; 978#else 979 struct ahc_devinfo devinfo; 980 struct ahc_initiator_tinfo *targ_info; 981 struct ahc_tmode_tstate *tstate; 982 struct ahc_transinfo *tinfo; 983 long s; 984 985 ahc_compile_devinfo(&devinfo, our_id, 986 cts->ccb_h.target_id, 987 cts->ccb_h.target_lun, 988 channel, ROLE_UNKNOWN); 989 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 990 devinfo.our_scsiid, 991 devinfo.target, &tstate); 992 993 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) 994 tinfo = &targ_info->curr; 995 else 996 tinfo = &targ_info->user; 997 998 ahc_lock(ahc, &s); 999 1000 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB); 1001 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) { 1002 if ((ahc->user_discenable & devinfo.target_mask) != 0) 1003 cts->flags |= CCB_TRANS_DISC_ENB; 1004 1005 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 1006 cts->flags |= CCB_TRANS_TAG_ENB; 1007 } else { 1008 if ((tstate->discenable & devinfo.target_mask) != 0) 1009 cts->flags |= CCB_TRANS_DISC_ENB; 1010 1011 if ((tstate->tagenable & devinfo.target_mask) != 0) 1012 cts->flags |= CCB_TRANS_TAG_ENB; 1013 } 1014 cts->sync_period = tinfo->period; 1015 cts->sync_offset = tinfo->offset; 1016 cts->bus_width = tinfo->width; 1017 1018 ahc_unlock(ahc, &s); 1019 1020 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1021 | CCB_TRANS_SYNC_OFFSET_VALID 1022 | CCB_TRANS_BUS_WIDTH_VALID; 1023 1024 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) 1025 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID; 1026 1027 cts->ccb_h.status = CAM_REQ_CMP; 1028#endif 1029} 1030 1031static void 1032ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 1033{ 1034 struct ahc_softc *ahc; 1035 struct cam_sim *sim; 1036 1037 sim = (struct cam_sim *)callback_arg; 1038 ahc = (struct ahc_softc *)cam_sim_softc(sim); 1039 switch (code) { 1040 case AC_LOST_DEVICE: 1041 { 1042 struct ahc_devinfo devinfo; 1043 long s; 1044 1045 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 1046 xpt_path_target_id(path), 1047 xpt_path_lun_id(path), 1048 SIM_CHANNEL(ahc, sim), 1049 ROLE_UNKNOWN); 1050 1051 /* 1052 * Revert to async/narrow transfers 1053 * for the next device. 1054 */ 1055 ahc_lock(ahc, &s); 1056 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 1057 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE); 1058 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL, 1059 /*period*/0, /*offset*/0, /*ppr_options*/0, 1060 AHC_TRANS_GOAL|AHC_TRANS_CUR, 1061 /*paused*/FALSE); 1062 ahc_unlock(ahc, &s); 1063 break; 1064 } 1065 default: 1066 break; 1067 } 1068} 1069 1070static void 1071ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 1072 int error) 1073{ 1074 struct scb *scb; 1075 union ccb *ccb; 1076 struct ahc_softc *ahc; 1077 struct ahc_initiator_tinfo *tinfo; 1078 struct ahc_tmode_tstate *tstate; 1079 u_int mask; 1080 long s; 1081 1082 scb = (struct scb *)arg; 1083 ccb = scb->io_ctx; 1084 ahc = scb->ahc_softc; 1085 1086 if (error != 0) { 1087 if (error == EFBIG) 1088 ahc_set_transaction_status(scb, CAM_REQ_TOO_BIG); 1089 else 1090 ahc_set_transaction_status(scb, CAM_REQ_CMP_ERR); 1091 if (nsegments != 0) 1092 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 1093 ahc_lock(ahc, &s); 1094 ahc_free_scb(ahc, scb); 1095 ahc_unlock(ahc, &s); 1096 xpt_done(ccb); 1097 return; 1098 } 1099 if (nsegments != 0) { 1100 struct ahc_dma_seg *sg; 1101 bus_dma_segment_t *end_seg; 1102 bus_dmasync_op_t op; 1103 1104 end_seg = dm_segs + nsegments; 1105 1106 /* Copy the segments into our SG list */ 1107 sg = scb->sg_list; 1108 while (dm_segs < end_seg) { 1109 sg->addr = dm_segs->ds_addr; 1110/* XXX Add in the 5th byte of the address later. */ 1111 sg->len = dm_segs->ds_len; 1112 sg++; 1113 dm_segs++; 1114 } 1115 1116 /* 1117 * Note where to find the SG entries in bus space. 1118 * We also set the full residual flag which the 1119 * sequencer will clear as soon as a data transfer 1120 * occurs. 1121 */ 1122 scb->hscb->sgptr = scb->sg_list_phys | SG_FULL_RESID; 1123 1124 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1125 op = BUS_DMASYNC_PREREAD; 1126 else 1127 op = BUS_DMASYNC_PREWRITE; 1128 1129 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 1130 1131 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 1132 struct target_data *tdata; 1133 1134 tdata = &scb->hscb->shared_data.tdata; 1135 tdata->target_phases |= DPHASE_PENDING; 1136 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1137 tdata->data_phase = P_DATAOUT; 1138 else 1139 tdata->data_phase = P_DATAIN; 1140 1141 /* 1142 * If the transfer is of an odd length and in the 1143 * "in" direction (scsi->HostBus), then it may 1144 * trigger a bug in the 'WideODD' feature of 1145 * non-Ultra2 chips. Force the total data-length 1146 * to be even by adding an extra, 1 byte, SG, 1147 * element. We do this even if we are not currently 1148 * negotiated wide as negotiation could occur before 1149 * this command is executed. 1150 */ 1151 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0 1152 && (ccb->csio.dxfer_len & 0x1) != 0 1153 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { 1154 1155 nsegments++; 1156 if (nsegments > AHC_NSEG) { 1157 1158 ahc_set_transaction_status(scb, 1159 CAM_REQ_TOO_BIG); 1160 bus_dmamap_unload(ahc->buffer_dmat, 1161 scb->dmamap); 1162 ahc_lock(ahc, &s); 1163 ahc_free_scb(ahc, scb); 1164 ahc_unlock(ahc, &s); 1165 xpt_done(ccb); 1166 return; 1167 } 1168 sg->addr = ahc->dma_bug_buf; 1169 sg->len = 1; 1170 sg++; 1171 } 1172 } 1173 sg--; 1174 sg->len |= AHC_DMA_LAST_SEG; 1175 1176 /* Copy the first SG into the "current" data pointer area */ 1177 scb->hscb->dataptr = scb->sg_list->addr; 1178 scb->hscb->datacnt = scb->sg_list->len; 1179 } else { 1180 scb->hscb->sgptr = SG_LIST_NULL; 1181 scb->hscb->dataptr = 0; 1182 scb->hscb->datacnt = 0; 1183 } 1184 1185 scb->sg_count = nsegments; 1186 1187 ahc_lock(ahc, &s); 1188 1189 /* 1190 * Last time we need to check if this SCB needs to 1191 * be aborted. 1192 */ 1193 if (ahc_get_transaction_status(scb) != CAM_REQ_INPROG) { 1194 if (nsegments != 0) 1195 bus_dmamap_unload(ahc->buffer_dmat, 1196 scb->dmamap); 1197 ahc_free_scb(ahc, scb); 1198 ahc_unlock(ahc, &s); 1199 xpt_done(ccb); 1200 return; 1201 } 1202 1203 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid), 1204 SCSIID_OUR_ID(scb->hscb->scsiid), 1205 SCSIID_TARGET(ahc, scb->hscb->scsiid), 1206 &tstate); 1207 1208 mask = SCB_GET_TARGET_MASK(ahc, scb); 1209 scb->hscb->scsirate = tinfo->scsirate; 1210 scb->hscb->scsioffset = tinfo->curr.offset; 1211 if ((tstate->ultraenb & mask) != 0) 1212 scb->hscb->control |= ULTRAENB; 1213 1214 if ((tstate->discenable & mask) != 0 1215 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1216 scb->hscb->control |= DISCENB; 1217 1218 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1219 && (tinfo->goal.width != 0 1220 || tinfo->goal.period != 0 1221 || tinfo->goal.ppr_options != 0)) { 1222 scb->flags |= SCB_NEGOTIATE; 1223 scb->hscb->control |= MK_MESSAGE; 1224 } else if ((tstate->auto_negotiate & mask) != 0) { 1225 scb->flags |= SCB_AUTO_NEGOTIATE; 1226 scb->hscb->control |= MK_MESSAGE; 1227 } 1228 1229 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); 1230 1231 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1232 1233 if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) { 1234 uint64_t time; 1235 1236 if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT) 1237 ccb->ccb_h.timeout = 5 * 1000; 1238 1239 time = ccb->ccb_h.timeout; 1240 time *= hz; 1241 time /= 1000; 1242 ccb->ccb_h.timeout_ch = 1243 timeout(ahc_timeout, (caddr_t)scb, time); 1244 } 1245 1246 /* 1247 * We only allow one untagged transaction 1248 * per target in the initiator role unless 1249 * we are storing a full busy target *lun* 1250 * table in SCB space. 1251 */ 1252 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 1253 && (ahc->flags & AHC_SCB_BTT) == 0) { 1254 struct scb_tailq *untagged_q; 1255 int target_offset; 1256 1257 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 1258 untagged_q = &(ahc->untagged_queues[target_offset]); 1259 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); 1260 scb->flags |= SCB_UNTAGGEDQ; 1261 if (TAILQ_FIRST(untagged_q) != scb) { 1262 ahc_unlock(ahc, &s); 1263 return; 1264 } 1265 } 1266 scb->flags |= SCB_ACTIVE; 1267 1268 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1269 /* Define a mapping from our tag to the SCB. */ 1270 ahc->scb_data->scbindex[scb->hscb->tag] = scb; 1271 ahc_pause(ahc); 1272 if ((ahc->flags & AHC_PAGESCBS) == 0) 1273 ahc_outb(ahc, SCBPTR, scb->hscb->tag); 1274 ahc_outb(ahc, SCB_TAG, scb->hscb->tag); 1275 ahc_outb(ahc, RETURN_1, CONT_MSG_LOOP); 1276 ahc_unpause(ahc); 1277 } else { 1278 ahc_queue_scb(ahc, scb); 1279 } 1280 1281 ahc_unlock(ahc, &s); 1282} 1283 1284static void 1285ahc_poll(struct cam_sim *sim) 1286{ 1287 ahc_intr(cam_sim_softc(sim)); 1288} 1289 1290static void 1291ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 1292 struct ccb_scsiio *csio, struct scb *scb) 1293{ 1294 struct hardware_scb *hscb; 1295 struct ccb_hdr *ccb_h; 1296 1297 hscb = scb->hscb; 1298 ccb_h = &csio->ccb_h; 1299 1300 if (ccb_h->func_code == XPT_SCSI_IO) { 1301 hscb->cdb_len = csio->cdb_len; 1302 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1303 1304 if (hscb->cdb_len > sizeof(hscb->cdb32) 1305 || (ccb_h->flags & CAM_CDB_PHYS) != 0) { 1306 u_long s; 1307 1308 ahc_set_transaction_status(scb, 1309 CAM_REQ_INVALID); 1310 ahc_lock(ahc, &s); 1311 ahc_free_scb(ahc, scb); 1312 ahc_unlock(ahc, &s); 1313 xpt_done((union ccb *)csio); 1314 return; 1315 } 1316 if (hscb->cdb_len > 12) { 1317 memcpy(hscb->cdb32, 1318 csio->cdb_io.cdb_ptr, 1319 hscb->cdb_len); 1320 scb->flags |= SCB_CDB32_PTR; 1321 } else { 1322 memcpy(hscb->shared_data.cdb, 1323 csio->cdb_io.cdb_ptr, 1324 hscb->cdb_len); 1325 } 1326 } else { 1327 if (hscb->cdb_len > 12) { 1328 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes, 1329 hscb->cdb_len); 1330 scb->flags |= SCB_CDB32_PTR; 1331 } else { 1332 memcpy(hscb->shared_data.cdb, 1333 csio->cdb_io.cdb_bytes, 1334 hscb->cdb_len); 1335 } 1336 } 1337 } 1338 1339 /* Only use S/G if there is a transfer */ 1340 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1341 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1342 /* We've been given a pointer to a single buffer */ 1343 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1344 int s; 1345 int error; 1346 1347 s = splsoftvm(); 1348 error = bus_dmamap_load(ahc->buffer_dmat, 1349 scb->dmamap, 1350 csio->data_ptr, 1351 csio->dxfer_len, 1352 ahc_execute_scb, 1353 scb, /*flags*/0); 1354 if (error == EINPROGRESS) { 1355 /* 1356 * So as to maintain ordering, 1357 * freeze the controller queue 1358 * until our mapping is 1359 * returned. 1360 */ 1361 xpt_freeze_simq(sim, 1362 /*count*/1); 1363 scb->io_ctx->ccb_h.status |= 1364 CAM_RELEASE_SIMQ; 1365 } 1366 splx(s); 1367 } else { 1368 struct bus_dma_segment seg; 1369 1370 /* Pointer to physical buffer */ 1371 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE) 1372 panic("ahc_setup_data - Transfer size " 1373 "larger than can device max"); 1374 1375 seg.ds_addr = (bus_addr_t)csio->data_ptr; 1376 seg.ds_len = csio->dxfer_len; 1377 ahc_execute_scb(scb, &seg, 1, 0); 1378 } 1379 } else { 1380 struct bus_dma_segment *segs; 1381 1382 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1383 panic("ahc_setup_data - Physical segment " 1384 "pointers unsupported"); 1385 1386 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1387 panic("ahc_setup_data - Virtual segment " 1388 "addresses unsupported"); 1389 1390 /* Just use the segments provided */ 1391 segs = (struct bus_dma_segment *)csio->data_ptr; 1392 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0); 1393 } 1394 } else { 1395 ahc_execute_scb(scb, NULL, 0, 0); 1396 } 1397} 1398 1399static void 1400ahc_set_recoveryscb(struct ahc_softc *ahc, struct scb *scb) { 1401 1402 if ((scb->flags & SCB_RECOVERY_SCB) == 0) { 1403 struct scb *list_scb; 1404 1405 scb->flags |= SCB_RECOVERY_SCB; 1406 1407 /* 1408 * Take all queued, but not sent SCBs out of the equation. 1409 * Also ensure that no new CCBs are queued to us while we 1410 * try to fix this problem. 1411 */ 1412 if ((scb->io_ctx->ccb_h.status & CAM_RELEASE_SIMQ) == 0) { 1413 xpt_freeze_simq(SCB_GET_SIM(ahc, scb), /*count*/1); 1414 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; 1415 } 1416 1417 /* 1418 * Go through all of our pending SCBs and remove 1419 * any scheduled timeouts for them. We will reschedule 1420 * them after we've successfully fixed this problem. 1421 */ 1422 LIST_FOREACH(list_scb, &ahc->pending_scbs, pending_links) { 1423 union ccb *ccb; 1424 1425 ccb = list_scb->io_ctx; 1426 untimeout(ahc_timeout, list_scb, ccb->ccb_h.timeout_ch); 1427 } 1428 } 1429} 1430 1431void 1432ahc_timeout(void *arg) 1433{ 1434 struct scb *scb; 1435 struct ahc_softc *ahc; 1436 long s; 1437 int found; 1438 u_int last_phase; 1439 int target; 1440 int lun; 1441 int i; 1442 char channel; 1443 1444 scb = (struct scb *)arg; 1445 ahc = (struct ahc_softc *)scb->ahc_softc; 1446 1447 ahc_lock(ahc, &s); 1448 1449 ahc_pause_and_flushwork(ahc); 1450 1451 if ((scb->flags & SCB_ACTIVE) == 0) { 1452 /* Previous timeout took care of me already */ 1453 printf("%s: Timedout SCB already complete. " 1454 "Interrupts may not be functioning.\n", ahc_name(ahc)); 1455 ahc_unpause(ahc); 1456 ahc_unlock(ahc, &s); 1457 return; 1458 } 1459 1460 target = SCB_GET_TARGET(ahc, scb); 1461 channel = SCB_GET_CHANNEL(ahc, scb); 1462 lun = SCB_GET_LUN(scb); 1463 1464 ahc_print_path(ahc, scb); 1465 printf("SCB 0x%x - timed out\n", scb->hscb->tag); 1466 ahc_dump_card_state(ahc); 1467 last_phase = ahc_inb(ahc, LASTPHASE); 1468 if (scb->sg_count > 0) { 1469 for (i = 0; i < scb->sg_count; i++) { 1470 printf("sg[%d] - Addr 0x%x : Length %d\n", 1471 i, 1472 scb->sg_list[i].addr, 1473 scb->sg_list[i].len & AHC_SG_LEN_MASK); 1474 } 1475 } 1476 if (scb->flags & (SCB_DEVICE_RESET|SCB_ABORT)) { 1477 /* 1478 * Been down this road before. 1479 * Do a full bus reset. 1480 */ 1481bus_reset: 1482 ahc_set_transaction_status(scb, CAM_CMD_TIMEOUT); 1483 found = ahc_reset_channel(ahc, channel, /*Initiate Reset*/TRUE); 1484 printf("%s: Issued Channel %c Bus Reset. " 1485 "%d SCBs aborted\n", ahc_name(ahc), channel, found); 1486 } else { 1487 /* 1488 * If we are a target, transition to bus free and report 1489 * the timeout. 1490 * 1491 * The target/initiator that is holding up the bus may not 1492 * be the same as the one that triggered this timeout 1493 * (different commands have different timeout lengths). 1494 * If the bus is idle and we are actiing as the initiator 1495 * for this request, queue a BDR message to the timed out 1496 * target. Otherwise, if the timed out transaction is 1497 * active: 1498 * Initiator transaction: 1499 * Stuff the message buffer with a BDR message and assert 1500 * ATN in the hopes that the target will let go of the bus 1501 * and go to the mesgout phase. If this fails, we'll 1502 * get another timeout 2 seconds later which will attempt 1503 * a bus reset. 1504 * 1505 * Target transaction: 1506 * Transition to BUS FREE and report the error. 1507 * It's good to be the target! 1508 */ 1509 u_int active_scb_index; 1510 u_int saved_scbptr; 1511 1512 saved_scbptr = ahc_inb(ahc, SCBPTR); 1513 active_scb_index = ahc_inb(ahc, SCB_TAG); 1514 1515 if (last_phase != P_BUSFREE 1516 && (ahc_inb(ahc, SEQ_FLAGS) & IDENTIFY_SEEN) != 0 1517 && (active_scb_index < ahc->scb_data->numscbs)) { 1518 struct scb *active_scb; 1519 1520 /* 1521 * If the active SCB is not us, assume that 1522 * the active SCB has a longer timeout than 1523 * the timedout SCB, and wait for the active 1524 * SCB to timeout. 1525 */ 1526 active_scb = ahc_lookup_scb(ahc, active_scb_index); 1527 if (active_scb != scb) { 1528 struct ccb_hdr *ccbh; 1529 uint64_t newtimeout; 1530 1531 ahc_print_path(ahc, scb); 1532 printf("Other SCB Timeout%s", 1533 (scb->flags & SCB_OTHERTCL_TIMEOUT) != 0 1534 ? " again\n" : "\n"); 1535 scb->flags |= SCB_OTHERTCL_TIMEOUT; 1536 newtimeout = 1537 MAX(active_scb->io_ctx->ccb_h.timeout, 1538 scb->io_ctx->ccb_h.timeout); 1539 newtimeout *= hz; 1540 newtimeout /= 1000; 1541 ccbh = &scb->io_ctx->ccb_h; 1542 scb->io_ctx->ccb_h.timeout_ch = 1543 timeout(ahc_timeout, scb, newtimeout); 1544 ahc_unpause(ahc); 1545 ahc_unlock(ahc, &s); 1546 return; 1547 } 1548 1549 /* It's us */ 1550 if ((scb->hscb->control & TARGET_SCB) != 0) { 1551 1552 /* 1553 * Send back any queued up transactions 1554 * and properly record the error condition. 1555 */ 1556 ahc_freeze_devq(ahc, scb); 1557 ahc_set_transaction_status(scb, 1558 CAM_CMD_TIMEOUT); 1559 ahc_freeze_scb(scb); 1560 ahc_done(ahc, scb); 1561 1562 /* Will clear us from the bus */ 1563 ahc_restart(ahc); 1564 ahc_unlock(ahc, &s); 1565 return; 1566 } 1567 1568 ahc_set_recoveryscb(ahc, active_scb); 1569 ahc_outb(ahc, MSG_OUT, HOST_MSG); 1570 ahc_outb(ahc, SCSISIGO, last_phase|ATNO); 1571 ahc_print_path(ahc, active_scb); 1572 printf("BDR message in message buffer\n"); 1573 active_scb->flags |= SCB_DEVICE_RESET; 1574 active_scb->io_ctx->ccb_h.timeout_ch = 1575 timeout(ahc_timeout, (caddr_t)active_scb, 2 * hz); 1576 ahc_unpause(ahc); 1577 } else { 1578 int disconnected; 1579 1580 /* XXX Shouldn't panic. Just punt instead */ 1581 if ((scb->hscb->control & TARGET_SCB) != 0) 1582 panic("Timed-out target SCB but bus idle"); 1583 1584 if (last_phase != P_BUSFREE 1585 && (ahc_inb(ahc, SSTAT0) & TARGET) != 0) { 1586 /* XXX What happened to the SCB? */ 1587 /* Hung target selection. Goto busfree */ 1588 printf("%s: Hung target selection\n", 1589 ahc_name(ahc)); 1590 ahc_restart(ahc); 1591 ahc_unlock(ahc, &s); 1592 return; 1593 } 1594 1595 if (ahc_search_qinfifo(ahc, target, channel, lun, 1596 scb->hscb->tag, ROLE_INITIATOR, 1597 /*status*/0, SEARCH_COUNT) > 0) { 1598 disconnected = FALSE; 1599 } else { 1600 disconnected = TRUE; 1601 } 1602 1603 if (disconnected) { 1604 1605 ahc_set_recoveryscb(ahc, scb); 1606 /* 1607 * Actually re-queue this SCB in an attempt 1608 * to select the device before it reconnects. 1609 * In either case (selection or reselection), 1610 * we will now issue a target reset to the 1611 * timed-out device. 1612 * 1613 * Set the MK_MESSAGE control bit indicating 1614 * that we desire to send a message. We 1615 * also set the disconnected flag since 1616 * in the paging case there is no guarantee 1617 * that our SCB control byte matches the 1618 * version on the card. We don't want the 1619 * sequencer to abort the command thinking 1620 * an unsolicited reselection occurred. 1621 */ 1622 scb->hscb->control |= MK_MESSAGE|DISCONNECTED; 1623 scb->flags |= SCB_DEVICE_RESET; 1624 1625 /* 1626 * Remove any cached copy of this SCB in the 1627 * disconnected list in preparation for the 1628 * queuing of our abort SCB. We use the 1629 * same element in the SCB, SCB_NEXT, for 1630 * both the qinfifo and the disconnected list. 1631 */ 1632 ahc_search_disc_list(ahc, target, channel, 1633 lun, scb->hscb->tag, 1634 /*stop_on_first*/TRUE, 1635 /*remove*/TRUE, 1636 /*save_state*/FALSE); 1637 1638 /* 1639 * In the non-paging case, the sequencer will 1640 * never re-reference the in-core SCB. 1641 * To make sure we are notified during 1642 * reslection, set the MK_MESSAGE flag in 1643 * the card's copy of the SCB. 1644 */ 1645 if ((ahc->flags & AHC_PAGESCBS) == 0) { 1646 ahc_outb(ahc, SCBPTR, scb->hscb->tag); 1647 ahc_outb(ahc, SCB_CONTROL, 1648 ahc_inb(ahc, SCB_CONTROL) 1649 | MK_MESSAGE); 1650 } 1651 1652 /* 1653 * Clear out any entries in the QINFIFO first 1654 * so we are the next SCB for this target 1655 * to run. 1656 */ 1657 ahc_search_qinfifo(ahc, 1658 SCB_GET_TARGET(ahc, scb), 1659 channel, SCB_GET_LUN(scb), 1660 SCB_LIST_NULL, 1661 ROLE_INITIATOR, 1662 CAM_REQUEUE_REQ, 1663 SEARCH_COMPLETE); 1664 ahc_print_path(ahc, scb); 1665 printf("Queuing a BDR SCB\n"); 1666 ahc_qinfifo_requeue_tail(ahc, scb); 1667 ahc_outb(ahc, SCBPTR, saved_scbptr); 1668 scb->io_ctx->ccb_h.timeout_ch = 1669 timeout(ahc_timeout, (caddr_t)scb, 2 * hz); 1670 ahc_unpause(ahc); 1671 } else { 1672 /* Go "immediatly" to the bus reset */ 1673 /* This shouldn't happen */ 1674 ahc_set_recoveryscb(ahc, scb); 1675 ahc_print_path(ahc, scb); 1676 printf("SCB %d: Immediate reset. " 1677 "Flags = 0x%x\n", scb->hscb->tag, 1678 scb->flags); 1679 goto bus_reset; 1680 } 1681 } 1682 } 1683 ahc_unlock(ahc, &s); 1684} 1685 1686static void 1687ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb) 1688{ 1689 union ccb *abort_ccb; 1690 1691 abort_ccb = ccb->cab.abort_ccb; 1692 switch (abort_ccb->ccb_h.func_code) { 1693 case XPT_ACCEPT_TARGET_IO: 1694 case XPT_IMMED_NOTIFY: 1695 case XPT_CONT_TARGET_IO: 1696 { 1697 struct ahc_tmode_tstate *tstate; 1698 struct ahc_tmode_lstate *lstate; 1699 struct ccb_hdr_slist *list; 1700 cam_status status; 1701 1702 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate, 1703 &lstate, TRUE); 1704 1705 if (status != CAM_REQ_CMP) { 1706 ccb->ccb_h.status = status; 1707 break; 1708 } 1709 1710 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1711 list = &lstate->accept_tios; 1712 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1713 list = &lstate->immed_notifies; 1714 else 1715 list = NULL; 1716 1717 if (list != NULL) { 1718 struct ccb_hdr *curelm; 1719 int found; 1720 1721 curelm = SLIST_FIRST(list); 1722 found = 0; 1723 if (curelm == &abort_ccb->ccb_h) { 1724 found = 1; 1725 SLIST_REMOVE_HEAD(list, sim_links.sle); 1726 } else { 1727 while(curelm != NULL) { 1728 struct ccb_hdr *nextelm; 1729 1730 nextelm = 1731 SLIST_NEXT(curelm, sim_links.sle); 1732 1733 if (nextelm == &abort_ccb->ccb_h) { 1734 found = 1; 1735 SLIST_NEXT(curelm, 1736 sim_links.sle) = 1737 SLIST_NEXT(nextelm, 1738 sim_links.sle); 1739 break; 1740 } 1741 curelm = nextelm; 1742 } 1743 } 1744 1745 if (found) { 1746 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1747 xpt_done(abort_ccb); 1748 ccb->ccb_h.status = CAM_REQ_CMP; 1749 } else { 1750 xpt_print_path(abort_ccb->ccb_h.path); 1751 printf("Not found\n"); 1752 ccb->ccb_h.status = CAM_PATH_INVALID; 1753 } 1754 break; 1755 } 1756 /* FALLTHROUGH */ 1757 } 1758 case XPT_SCSI_IO: 1759 /* XXX Fully implement the hard ones */ 1760 ccb->ccb_h.status = CAM_UA_ABORT; 1761 break; 1762 default: 1763 ccb->ccb_h.status = CAM_REQ_INVALID; 1764 break; 1765 } 1766 xpt_done(ccb); 1767} 1768 1769void 1770ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, 1771 u_int lun, ac_code code, void *opt_arg) 1772{ 1773 struct ccb_trans_settings cts; 1774 struct cam_path *path; 1775 void *arg; 1776 int error; 1777 1778 arg = NULL; 1779 error = ahc_create_path(ahc, channel, target, lun, &path); 1780 1781 if (error != CAM_REQ_CMP) 1782 return; 1783 1784 switch (code) { 1785 case AC_TRANSFER_NEG: 1786 { 1787#ifdef AHC_NEW_TRAN_SETTINGS 1788 struct ccb_trans_settings_scsi *scsi; 1789 1790 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1791 scsi = &cts.proto_specific.scsi; 1792#else 1793 cts.flags = CCB_TRANS_CURRENT_SETTINGS; 1794#endif 1795 cts.ccb_h.path = path; 1796 cts.ccb_h.target_id = target; 1797 cts.ccb_h.target_lun = lun; 1798 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id 1799 : ahc->our_id_b, 1800 channel, &cts); 1801 arg = &cts; 1802#ifdef AHC_NEW_TRAN_SETTINGS 1803 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1804 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1805#else 1806 cts.valid &= ~CCB_TRANS_TQ_VALID; 1807 cts.flags &= ~CCB_TRANS_TAG_ENB; 1808#endif 1809 if (opt_arg == NULL) 1810 break; 1811 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED) 1812#ifdef AHC_NEW_TRAN_SETTINGS 1813 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1814 scsi->valid |= CTS_SCSI_VALID_TQ; 1815#else 1816 cts.flags |= CCB_TRANS_TAG_ENB; 1817 cts.valid |= CCB_TRANS_TQ_VALID; 1818#endif 1819 break; 1820 } 1821 case AC_SENT_BDR: 1822 case AC_BUS_RESET: 1823 break; 1824 default: 1825 panic("ahc_send_async: Unexpected async event"); 1826 } 1827 xpt_async(code, path, arg); 1828 xpt_free_path(path); 1829} 1830 1831void 1832ahc_platform_set_tags(struct ahc_softc *ahc, 1833 struct ahc_devinfo *devinfo, int enable) 1834{ 1835} 1836 1837int 1838ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) 1839{ 1840 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, 1841 M_NOWAIT | M_ZERO); 1842 if (ahc->platform_data == NULL) 1843 return (ENOMEM); 1844 return (0); 1845} 1846 1847void 1848ahc_platform_free(struct ahc_softc *ahc) 1849{ 1850 struct ahc_platform_data *pdata; 1851 1852 pdata = ahc->platform_data; 1853 if (pdata != NULL) { 1854 if (pdata->regs != NULL) 1855 bus_release_resource(ahc->dev_softc, 1856 pdata->regs_res_type, 1857 pdata->regs_res_id, 1858 pdata->regs); 1859 1860 if (pdata->irq != NULL) 1861 bus_release_resource(ahc->dev_softc, 1862 pdata->irq_res_type, 1863 0, pdata->irq); 1864 1865 if (pdata->sim_b != NULL) { 1866 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL); 1867 xpt_free_path(pdata->path_b); 1868 xpt_bus_deregister(cam_sim_path(pdata->sim_b)); 1869 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE); 1870 } 1871 if (pdata->sim != NULL) { 1872 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1873 xpt_free_path(pdata->path); 1874 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1875 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1876 } 1877 if (pdata->eh != NULL) 1878 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1879 free(ahc->platform_data, M_DEVBUF); 1880 } 1881} 1882 1883int 1884ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) 1885{ 1886 /* We don't sort softcs under FreeBSD so report equal always */ 1887 return (0); 1888} 1889 1890int 1891ahc_detach(device_t dev) 1892{ 1893 struct ahc_softc *ahc; 1894 u_long s; 1895 1896 device_printf(dev, "detaching device\n"); 1897 ahc = device_get_softc(dev); 1898 ahc_lock(ahc, &s); 1899 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih); 1900 ahc_unlock(ahc, &s); 1901 ahc_free(ahc); 1902 return (0); 1903} 1904 1905#if UNUSED 1906static void 1907ahc_dump_targcmd(struct target_cmd *cmd) 1908{ 1909 uint8_t *byte; 1910 uint8_t *last_byte; 1911 int i; 1912 1913 byte = &cmd->initiator_channel; 1914 /* Debugging info for received commands */ 1915 last_byte = &cmd[1].initiator_channel; 1916 1917 i = 0; 1918 while (byte < last_byte) { 1919 if (i == 0) 1920 printf("\t"); 1921 printf("%#x", *byte++); 1922 i++; 1923 if (i == 8) { 1924 printf("\n"); 1925 i = 0; 1926 } else { 1927 printf(", "); 1928 } 1929 } 1930} 1931#endif 1932 1933static int 1934ahc_modevent(module_t mod, int type, void *data) 1935{ 1936 /* XXX Deal with busy status on unload. */ 1937 return 0; 1938} 1939 1940static moduledata_t ahc_mod = { 1941 "ahc", 1942 ahc_modevent, 1943 NULL 1944}; 1945 1946DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1947MODULE_DEPEND(ahc, cam, 1, 1, 1); 1948MODULE_VERSION(ahc, 1); 1949