aic7xxx_osm.c revision 168807
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: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.c#20 $ 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/dev/aic7xxx/aic7xxx_osm.c 168807 2007-04-17 06:26:25Z scottl $"); 36 37#include <dev/aic7xxx/aic7xxx_osm.h> 38#include <dev/aic7xxx/aic7xxx_inline.h> 39 40#include <sys/kthread.h> 41 42#ifndef AHC_TMODE_ENABLE 43#define AHC_TMODE_ENABLE 0 44#endif 45 46#include <dev/aic7xxx/aic_osm_lib.c> 47 48#define ccb_scb_ptr spriv_ptr0 49 50devclass_t ahc_devclass; 51 52#if 0 53static void ahc_dump_targcmd(struct target_cmd *cmd); 54#endif 55static int ahc_modevent(module_t mod, int type, void *data); 56static void ahc_action(struct cam_sim *sim, union ccb *ccb); 57static void ahc_get_tran_settings(struct ahc_softc *ahc, 58 int our_id, char channel, 59 struct ccb_trans_settings *cts); 60static void ahc_async(void *callback_arg, uint32_t code, 61 struct cam_path *path, void *arg); 62static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 63 int nsegments, int error); 64static void ahc_poll(struct cam_sim *sim); 65static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 66 struct ccb_scsiio *csio, struct scb *scb); 67static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, 68 union ccb *ccb); 69static int ahc_create_path(struct ahc_softc *ahc, 70 char channel, u_int target, u_int lun, 71 struct cam_path **path); 72 73 74static int 75ahc_create_path(struct ahc_softc *ahc, char channel, u_int target, 76 u_int lun, struct cam_path **path) 77{ 78 path_id_t path_id; 79 80 if (channel == 'B') 81 path_id = cam_sim_path(ahc->platform_data->sim_b); 82 else 83 path_id = cam_sim_path(ahc->platform_data->sim); 84 85 return (xpt_create_path(path, /*periph*/NULL, 86 path_id, target, lun)); 87} 88 89int 90ahc_map_int(struct ahc_softc *ahc) 91{ 92 int error; 93 int zero; 94 int shareable; 95 96 zero = 0; 97 shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE; 98 ahc->platform_data->irq = 99 bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero, 100 RF_ACTIVE | shareable); 101 if (ahc->platform_data->irq == NULL) { 102 device_printf(ahc->dev_softc, 103 "bus_alloc_resource() failed to allocate IRQ\n"); 104 return (ENOMEM); 105 } 106 ahc->platform_data->irq_res_type = SYS_RES_IRQ; 107 108 /* Hook up our interrupt handler */ 109 error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq, 110 INTR_TYPE_CAM|INTR_MPSAFE, NULL, 111 ahc_platform_intr, ahc, &ahc->platform_data->ih); 112 113 if (error != 0) 114 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n", 115 error); 116 return (error); 117} 118 119int 120aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg) 121{ 122 struct resource *regs; 123 int rid; 124 125 rid = 0; 126 regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid, 127 RF_ACTIVE); 128 if (regs == NULL) { 129 device_printf(ahc->dev_softc, "Unable to map I/O space?!\n"); 130 return ENOMEM; 131 } 132 ahc->platform_data->regs_res_type = SYS_RES_IOPORT; 133 ahc->platform_data->regs_res_id = rid, 134 ahc->platform_data->regs = regs; 135 ahc->tag = rman_get_bustag(regs); 136 ahc->bsh = rman_get_bushandle(regs); 137 return (0); 138} 139 140/* 141 * Attach all the sub-devices we can find 142 */ 143int 144ahc_attach(struct ahc_softc *ahc) 145{ 146 char ahc_info[256]; 147 struct ccb_setasync csa; 148 struct cam_devq *devq; 149 int bus_id; 150 int bus_id2; 151 struct cam_sim *sim; 152 struct cam_sim *sim2; 153 struct cam_path *path; 154 struct cam_path *path2; 155 int count; 156 157 count = 0; 158 sim = NULL; 159 sim2 = NULL; 160 path = NULL; 161 path2 = NULL; 162 163 164 /* 165 * Create a thread to perform all recovery. 166 */ 167 if (ahc_spawn_recovery_thread(ahc) != 0) 168 goto fail; 169 170 ahc_controller_info(ahc, ahc_info); 171 printf("%s\n", ahc_info); 172 ahc_lock(ahc); 173 174 /* 175 * Attach secondary channel first if the user has 176 * declared it the primary channel. 177 */ 178 if ((ahc->features & AHC_TWIN) != 0 179 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 180 bus_id = 1; 181 bus_id2 = 0; 182 } else { 183 bus_id = 0; 184 bus_id2 = 1; 185 } 186 187 /* 188 * Create the device queue for our SIM(s). 189 */ 190 devq = cam_simq_alloc(AHC_MAX_QUEUE); 191 if (devq == NULL) 192 goto fail; 193 194 /* 195 * Construct our first channel SIM entry 196 */ 197 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc, 198 device_get_unit(ahc->dev_softc), 199 &ahc->platform_data->mtx, 1, AHC_MAX_QUEUE, devq); 200 if (sim == NULL) { 201 cam_simq_free(devq); 202 goto fail; 203 } 204 205 if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) { 206 cam_sim_free(sim, /*free_devq*/TRUE); 207 sim = NULL; 208 goto fail; 209 } 210 211 if (xpt_create_path(&path, /*periph*/NULL, 212 cam_sim_path(sim), CAM_TARGET_WILDCARD, 213 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 214 xpt_bus_deregister(cam_sim_path(sim)); 215 cam_sim_free(sim, /*free_devq*/TRUE); 216 sim = NULL; 217 goto fail; 218 } 219 220 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 221 csa.ccb_h.func_code = XPT_SASYNC_CB; 222 csa.event_enable = AC_LOST_DEVICE; 223 csa.callback = ahc_async; 224 csa.callback_arg = sim; 225 xpt_action((union ccb *)&csa); 226 count++; 227 228 if (ahc->features & AHC_TWIN) { 229 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc", 230 ahc, device_get_unit(ahc->dev_softc), 231 &ahc->platform_data->mtx, 1, 232 AHC_MAX_QUEUE, devq); 233 234 if (sim2 == NULL) { 235 printf("ahc_attach: Unable to attach second " 236 "bus due to resource shortage"); 237 goto fail; 238 } 239 240 if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) { 241 printf("ahc_attach: Unable to attach second " 242 "bus due to resource shortage"); 243 /* 244 * We do not want to destroy the device queue 245 * because the first bus is using it. 246 */ 247 cam_sim_free(sim2, /*free_devq*/FALSE); 248 goto fail; 249 } 250 251 if (xpt_create_path(&path2, /*periph*/NULL, 252 cam_sim_path(sim2), 253 CAM_TARGET_WILDCARD, 254 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 255 xpt_bus_deregister(cam_sim_path(sim2)); 256 cam_sim_free(sim2, /*free_devq*/FALSE); 257 sim2 = NULL; 258 goto fail; 259 } 260 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5); 261 csa.ccb_h.func_code = XPT_SASYNC_CB; 262 csa.event_enable = AC_LOST_DEVICE; 263 csa.callback = ahc_async; 264 csa.callback_arg = sim2; 265 xpt_action((union ccb *)&csa); 266 count++; 267 } 268 269fail: 270 if ((ahc->features & AHC_TWIN) != 0 271 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 272 ahc->platform_data->sim_b = sim; 273 ahc->platform_data->path_b = path; 274 ahc->platform_data->sim = sim2; 275 ahc->platform_data->path = path2; 276 } else { 277 ahc->platform_data->sim = sim; 278 ahc->platform_data->path = path; 279 ahc->platform_data->sim_b = sim2; 280 ahc->platform_data->path_b = path2; 281 } 282 ahc_unlock(ahc); 283 284 if (count != 0) { 285 /* We have to wait until after any system dumps... */ 286 ahc->platform_data->eh = 287 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown, 288 ahc, SHUTDOWN_PRI_DEFAULT); 289 ahc_intr_enable(ahc, TRUE); 290 } 291 292 return (count); 293} 294 295/* 296 * Catch an interrupt from the adapter 297 */ 298void 299ahc_platform_intr(void *arg) 300{ 301 struct ahc_softc *ahc; 302 303 ahc = (struct ahc_softc *)arg; 304 ahc_lock(ahc); 305 ahc_intr(ahc); 306 ahc_unlock(ahc); 307} 308 309/* 310 * We have an scb which has been processed by the 311 * adaptor, now we look to see how the operation 312 * went. 313 */ 314void 315ahc_done(struct ahc_softc *ahc, struct scb *scb) 316{ 317 union ccb *ccb; 318 319 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 320 ("ahc_done - scb %d\n", scb->hscb->tag)); 321 322 ccb = scb->io_ctx; 323 LIST_REMOVE(scb, pending_links); 324 if ((scb->flags & SCB_TIMEDOUT) != 0) 325 LIST_REMOVE(scb, timedout_links); 326 if ((scb->flags & SCB_UNTAGGEDQ) != 0) { 327 struct scb_tailq *untagged_q; 328 int target_offset; 329 330 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 331 untagged_q = &ahc->untagged_queues[target_offset]; 332 TAILQ_REMOVE(untagged_q, scb, links.tqe); 333 scb->flags &= ~SCB_UNTAGGEDQ; 334 ahc_run_untagged_queue(ahc, untagged_q); 335 } 336 337 callout_stop(&scb->io_timer); 338 339 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 340 bus_dmasync_op_t op; 341 342 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 343 op = BUS_DMASYNC_POSTREAD; 344 else 345 op = BUS_DMASYNC_POSTWRITE; 346 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 347 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 348 } 349 350 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 351 struct cam_path *ccb_path; 352 353 /* 354 * If we have finally disconnected, clean up our 355 * pending device state. 356 * XXX - There may be error states that cause where 357 * we will remain connected. 358 */ 359 ccb_path = ccb->ccb_h.path; 360 if (ahc->pending_device != NULL 361 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) { 362 363 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 364 ahc->pending_device = NULL; 365 } else { 366 if (bootverbose) { 367 xpt_print_path(ccb->ccb_h.path); 368 printf("Still connected\n"); 369 } 370 aic_freeze_ccb(ccb); 371 } 372 } 373 374 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 375 ccb->ccb_h.status |= CAM_REQ_CMP; 376 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 377 ahc_free_scb(ahc, scb); 378 xpt_done(ccb); 379 return; 380 } 381 382 /* 383 * If the recovery SCB completes, we have to be 384 * out of our timeout. 385 */ 386 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 387 struct scb *list_scb; 388 389 ahc->scb_data->recovery_scbs--; 390 391 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 392 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 393 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 394 395 if (ahc->scb_data->recovery_scbs == 0) { 396 /* 397 * All recovery actions have completed successfully, 398 * so reinstate the timeouts for all other pending 399 * commands. 400 */ 401 LIST_FOREACH(list_scb, &ahc->pending_scbs, 402 pending_links) { 403 404 aic_scb_timer_reset(list_scb, 405 aic_get_timeout(scb)); 406 } 407 408 ahc_print_path(ahc, scb); 409 printf("no longer in timeout, status = %x\n", 410 ccb->ccb_h.status); 411 } 412 } 413 414 /* Don't clobber any existing error state */ 415 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 416 ccb->ccb_h.status |= CAM_REQ_CMP; 417 } else if ((scb->flags & SCB_SENSE) != 0) { 418 /* 419 * We performed autosense retrieval. 420 * 421 * Zero any sense not transferred by the 422 * device. The SCSI spec mandates that any 423 * untransfered data should be assumed to be 424 * zero. Complete the 'bounce' of sense information 425 * through buffers accessible via bus-space by 426 * copying it into the clients csio. 427 */ 428 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 429 memcpy(&ccb->csio.sense_data, 430 ahc_get_sense_buf(ahc, scb), 431 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK) 432 - ccb->csio.sense_resid); 433 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 434 } 435 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 436 ahc_free_scb(ahc, scb); 437 xpt_done(ccb); 438} 439 440static void 441ahc_action(struct cam_sim *sim, union ccb *ccb) 442{ 443 struct ahc_softc *ahc; 444 struct ahc_tmode_lstate *lstate; 445 u_int target_id; 446 u_int our_id; 447 448 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n")); 449 450 ahc = (struct ahc_softc *)cam_sim_softc(sim); 451 452 target_id = ccb->ccb_h.target_id; 453 our_id = SIM_SCSI_ID(ahc, sim); 454 455 switch (ccb->ccb_h.func_code) { 456 /* Common cases first */ 457 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 458 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 459 { 460 struct ahc_tmode_tstate *tstate; 461 cam_status status; 462 463 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 464 &lstate, TRUE); 465 466 if (status != CAM_REQ_CMP) { 467 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 468 /* Response from the black hole device */ 469 tstate = NULL; 470 lstate = ahc->black_hole; 471 } else { 472 ccb->ccb_h.status = status; 473 xpt_done(ccb); 474 break; 475 } 476 } 477 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 478 479 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 480 sim_links.sle); 481 ccb->ccb_h.status = CAM_REQ_INPROG; 482 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0) 483 ahc_run_tqinfifo(ahc, /*paused*/FALSE); 484 break; 485 } 486 487 /* 488 * The target_id represents the target we attempt to 489 * select. In target mode, this is the initiator of 490 * the original command. 491 */ 492 our_id = target_id; 493 target_id = ccb->csio.init_id; 494 /* FALLTHROUGH */ 495 } 496 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 497 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 498 { 499 struct scb *scb; 500 struct hardware_scb *hscb; 501 502 if ((ahc->flags & AHC_INITIATORROLE) == 0 503 && (ccb->ccb_h.func_code == XPT_SCSI_IO 504 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 505 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 506 xpt_done(ccb); 507 return; 508 } 509 510 /* 511 * get an scb to use. 512 */ 513 if ((scb = ahc_get_scb(ahc)) == NULL) { 514 515 xpt_freeze_simq(sim, /*count*/1); 516 ahc->flags |= AHC_RESOURCE_SHORTAGE; 517 ccb->ccb_h.status = CAM_REQUEUE_REQ; 518 xpt_done(ccb); 519 return; 520 } 521 522 hscb = scb->hscb; 523 524 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 525 ("start scb(%p)\n", scb)); 526 scb->io_ctx = ccb; 527 /* 528 * So we can find the SCB when an abort is requested 529 */ 530 ccb->ccb_h.ccb_scb_ptr = scb; 531 532 /* 533 * Put all the arguments for the xfer in the scb 534 */ 535 hscb->control = 0; 536 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id); 537 hscb->lun = ccb->ccb_h.target_lun; 538 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 539 hscb->cdb_len = 0; 540 scb->flags |= SCB_DEVICE_RESET; 541 hscb->control |= MK_MESSAGE; 542 ahc_execute_scb(scb, NULL, 0, 0); 543 } else { 544 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 545 struct target_data *tdata; 546 547 tdata = &hscb->shared_data.tdata; 548 if (ahc->pending_device == lstate) 549 scb->flags |= SCB_TARGET_IMMEDIATE; 550 hscb->control |= TARGET_SCB; 551 scb->flags |= SCB_TARGET_SCB; 552 tdata->target_phases = 0; 553 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 554 tdata->target_phases |= SPHASE_PENDING; 555 tdata->scsi_status = 556 ccb->csio.scsi_status; 557 } 558 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 559 tdata->target_phases |= NO_DISCONNECT; 560 561 tdata->initiator_tag = ccb->csio.tag_id; 562 } 563 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 564 hscb->control |= ccb->csio.tag_action; 565 566 ahc_setup_data(ahc, sim, &ccb->csio, scb); 567 } 568 break; 569 } 570 case XPT_NOTIFY_ACK: 571 case XPT_IMMED_NOTIFY: 572 { 573 struct ahc_tmode_tstate *tstate; 574 struct ahc_tmode_lstate *lstate; 575 cam_status status; 576 577 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 578 &lstate, TRUE); 579 580 if (status != CAM_REQ_CMP) { 581 ccb->ccb_h.status = status; 582 xpt_done(ccb); 583 break; 584 } 585 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 586 sim_links.sle); 587 ccb->ccb_h.status = CAM_REQ_INPROG; 588 ahc_send_lstate_events(ahc, lstate); 589 break; 590 } 591 case XPT_EN_LUN: /* Enable LUN as a target */ 592 ahc_handle_en_lun(ahc, sim, ccb); 593 xpt_done(ccb); 594 break; 595 case XPT_ABORT: /* Abort the specified CCB */ 596 { 597 ahc_abort_ccb(ahc, sim, ccb); 598 break; 599 } 600 case XPT_SET_TRAN_SETTINGS: 601 { 602 struct ahc_devinfo devinfo; 603 struct ccb_trans_settings *cts; 604 struct ccb_trans_settings_scsi *scsi; 605 struct ccb_trans_settings_spi *spi; 606 struct ahc_initiator_tinfo *tinfo; 607 struct ahc_tmode_tstate *tstate; 608 uint16_t *discenable; 609 uint16_t *tagenable; 610 u_int update_type; 611 612 cts = &ccb->cts; 613 scsi = &cts->proto_specific.scsi; 614 spi = &cts->xport_specific.spi; 615 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 616 cts->ccb_h.target_id, 617 cts->ccb_h.target_lun, 618 SIM_CHANNEL(ahc, sim), 619 ROLE_UNKNOWN); 620 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 621 devinfo.our_scsiid, 622 devinfo.target, &tstate); 623 update_type = 0; 624 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 625 update_type |= AHC_TRANS_GOAL; 626 discenable = &tstate->discenable; 627 tagenable = &tstate->tagenable; 628 tinfo->curr.protocol_version = 629 cts->protocol_version; 630 tinfo->curr.transport_version = 631 cts->transport_version; 632 tinfo->goal.protocol_version = 633 cts->protocol_version; 634 tinfo->goal.transport_version = 635 cts->transport_version; 636 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 637 update_type |= AHC_TRANS_USER; 638 discenable = &ahc->user_discenable; 639 tagenable = &ahc->user_tagenable; 640 tinfo->user.protocol_version = 641 cts->protocol_version; 642 tinfo->user.transport_version = 643 cts->transport_version; 644 } else { 645 ccb->ccb_h.status = CAM_REQ_INVALID; 646 xpt_done(ccb); 647 break; 648 } 649 650 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 651 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 652 *discenable |= devinfo.target_mask; 653 else 654 *discenable &= ~devinfo.target_mask; 655 } 656 657 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 658 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 659 *tagenable |= devinfo.target_mask; 660 else 661 *tagenable &= ~devinfo.target_mask; 662 } 663 664 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 665 ahc_validate_width(ahc, /*tinfo limit*/NULL, 666 &spi->bus_width, ROLE_UNKNOWN); 667 ahc_set_width(ahc, &devinfo, spi->bus_width, 668 update_type, /*paused*/FALSE); 669 } 670 671 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 672 if (update_type == AHC_TRANS_USER) 673 spi->ppr_options = tinfo->user.ppr_options; 674 else 675 spi->ppr_options = tinfo->goal.ppr_options; 676 } 677 678 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 679 if (update_type == AHC_TRANS_USER) 680 spi->sync_offset = tinfo->user.offset; 681 else 682 spi->sync_offset = tinfo->goal.offset; 683 } 684 685 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 686 if (update_type == AHC_TRANS_USER) 687 spi->sync_period = tinfo->user.period; 688 else 689 spi->sync_period = tinfo->goal.period; 690 } 691 692 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 693 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 694 struct ahc_syncrate *syncrate; 695 u_int maxsync; 696 697 if ((ahc->features & AHC_ULTRA2) != 0) 698 maxsync = AHC_SYNCRATE_DT; 699 else if ((ahc->features & AHC_ULTRA) != 0) 700 maxsync = AHC_SYNCRATE_ULTRA; 701 else 702 maxsync = AHC_SYNCRATE_FAST; 703 704 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 705 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 706 707 syncrate = ahc_find_syncrate(ahc, &spi->sync_period, 708 &spi->ppr_options, 709 maxsync); 710 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 711 syncrate, &spi->sync_offset, 712 spi->bus_width, ROLE_UNKNOWN); 713 714 /* We use a period of 0 to represent async */ 715 if (spi->sync_offset == 0) { 716 spi->sync_period = 0; 717 spi->ppr_options = 0; 718 } 719 720 ahc_set_syncrate(ahc, &devinfo, syncrate, 721 spi->sync_period, spi->sync_offset, 722 spi->ppr_options, update_type, 723 /*paused*/FALSE); 724 } 725 ccb->ccb_h.status = CAM_REQ_CMP; 726 xpt_done(ccb); 727 break; 728 } 729 case XPT_GET_TRAN_SETTINGS: 730 /* Get default/user set transfer settings for the target */ 731 { 732 733 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim), 734 SIM_CHANNEL(ahc, sim), &ccb->cts); 735 xpt_done(ccb); 736 break; 737 } 738 case XPT_CALC_GEOMETRY: 739 { 740 int extended; 741 742 extended = SIM_IS_SCSIBUS_B(ahc, sim) 743 ? ahc->flags & AHC_EXTENDED_TRANS_B 744 : ahc->flags & AHC_EXTENDED_TRANS_A; 745 aic_calc_geometry(&ccb->ccg, extended); 746 xpt_done(ccb); 747 break; 748 } 749 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 750 { 751 int found; 752 753 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim), 754 /*initiate reset*/TRUE); 755 if (bootverbose) { 756 xpt_print_path(SIM_PATH(ahc, sim)); 757 printf("SCSI bus reset delivered. " 758 "%d SCBs aborted.\n", found); 759 } 760 ccb->ccb_h.status = CAM_REQ_CMP; 761 xpt_done(ccb); 762 break; 763 } 764 case XPT_TERM_IO: /* Terminate the I/O process */ 765 /* XXX Implement */ 766 ccb->ccb_h.status = CAM_REQ_INVALID; 767 xpt_done(ccb); 768 break; 769 case XPT_PATH_INQ: /* Path routing inquiry */ 770 { 771 struct ccb_pathinq *cpi = &ccb->cpi; 772 773 cpi->version_num = 1; /* XXX??? */ 774 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 775 if ((ahc->features & AHC_WIDE) != 0) 776 cpi->hba_inquiry |= PI_WIDE_16; 777 if ((ahc->features & AHC_TARGETMODE) != 0) { 778 cpi->target_sprt = PIT_PROCESSOR 779 | PIT_DISCONNECT 780 | PIT_TERM_IO; 781 } else { 782 cpi->target_sprt = 0; 783 } 784 cpi->hba_misc = 0; 785 cpi->hba_eng_cnt = 0; 786 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7; 787 cpi->max_lun = AHC_NUM_LUNS - 1; 788 if (SIM_IS_SCSIBUS_B(ahc, sim)) { 789 cpi->initiator_id = ahc->our_id_b; 790 if ((ahc->flags & AHC_RESET_BUS_B) == 0) 791 cpi->hba_misc |= PIM_NOBUSRESET; 792 } else { 793 cpi->initiator_id = ahc->our_id; 794 if ((ahc->flags & AHC_RESET_BUS_A) == 0) 795 cpi->hba_misc |= PIM_NOBUSRESET; 796 } 797 cpi->bus_id = cam_sim_bus(sim); 798 cpi->base_transfer_speed = 3300; 799 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 800 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 801 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 802 cpi->unit_number = cam_sim_unit(sim); 803 cpi->protocol = PROTO_SCSI; 804 cpi->protocol_version = SCSI_REV_2; 805 cpi->transport = XPORT_SPI; 806 cpi->transport_version = 2; 807 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 808 if ((ahc->features & AHC_DT) != 0) { 809 cpi->transport_version = 3; 810 cpi->xport_specific.spi.ppr_options = 811 SID_SPI_CLOCK_DT_ST; 812 } 813 cpi->ccb_h.status = CAM_REQ_CMP; 814 xpt_done(ccb); 815 break; 816 } 817 default: 818 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 819 xpt_done(ccb); 820 break; 821 } 822} 823 824static void 825ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel, 826 struct ccb_trans_settings *cts) 827{ 828 struct ahc_devinfo devinfo; 829 struct ccb_trans_settings_scsi *scsi; 830 struct ccb_trans_settings_spi *spi; 831 struct ahc_initiator_tinfo *targ_info; 832 struct ahc_tmode_tstate *tstate; 833 struct ahc_transinfo *tinfo; 834 835 scsi = &cts->proto_specific.scsi; 836 spi = &cts->xport_specific.spi; 837 ahc_compile_devinfo(&devinfo, our_id, 838 cts->ccb_h.target_id, 839 cts->ccb_h.target_lun, 840 channel, ROLE_UNKNOWN); 841 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 842 devinfo.our_scsiid, 843 devinfo.target, &tstate); 844 845 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 846 tinfo = &targ_info->curr; 847 else 848 tinfo = &targ_info->user; 849 850 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 851 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 852 if (cts->type == CTS_TYPE_USER_SETTINGS) { 853 if ((ahc->user_discenable & devinfo.target_mask) != 0) 854 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 855 856 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 857 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 858 } else { 859 if ((tstate->discenable & devinfo.target_mask) != 0) 860 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 861 862 if ((tstate->tagenable & devinfo.target_mask) != 0) 863 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 864 } 865 cts->protocol_version = tinfo->protocol_version; 866 cts->transport_version = tinfo->transport_version; 867 868 spi->sync_period = tinfo->period; 869 spi->sync_offset = tinfo->offset; 870 spi->bus_width = tinfo->width; 871 spi->ppr_options = tinfo->ppr_options; 872 873 cts->protocol = PROTO_SCSI; 874 cts->transport = XPORT_SPI; 875 spi->valid = CTS_SPI_VALID_SYNC_RATE 876 | CTS_SPI_VALID_SYNC_OFFSET 877 | CTS_SPI_VALID_BUS_WIDTH 878 | CTS_SPI_VALID_PPR_OPTIONS; 879 880 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 881 scsi->valid = CTS_SCSI_VALID_TQ; 882 spi->valid |= CTS_SPI_VALID_DISC; 883 } else { 884 scsi->valid = 0; 885 } 886 887 cts->ccb_h.status = CAM_REQ_CMP; 888} 889 890static void 891ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 892{ 893 struct ahc_softc *ahc; 894 struct cam_sim *sim; 895 896 sim = (struct cam_sim *)callback_arg; 897 ahc = (struct ahc_softc *)cam_sim_softc(sim); 898 switch (code) { 899 case AC_LOST_DEVICE: 900 { 901 struct ahc_devinfo devinfo; 902 903 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 904 xpt_path_target_id(path), 905 xpt_path_lun_id(path), 906 SIM_CHANNEL(ahc, sim), 907 ROLE_UNKNOWN); 908 909 /* 910 * Revert to async/narrow transfers 911 * for the next device. 912 */ 913 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 914 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE); 915 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL, 916 /*period*/0, /*offset*/0, /*ppr_options*/0, 917 AHC_TRANS_GOAL|AHC_TRANS_CUR, 918 /*paused*/FALSE); 919 break; 920 } 921 default: 922 break; 923 } 924} 925 926static void 927ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 928 int error) 929{ 930 struct scb *scb; 931 union ccb *ccb; 932 struct ahc_softc *ahc; 933 struct ahc_initiator_tinfo *tinfo; 934 struct ahc_tmode_tstate *tstate; 935 u_int mask; 936 937 scb = (struct scb *)arg; 938 ccb = scb->io_ctx; 939 ahc = scb->ahc_softc; 940 941 if (error != 0) { 942 if (error == EFBIG) 943 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 944 else 945 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 946 if (nsegments != 0) 947 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 948 ahc_free_scb(ahc, scb); 949 xpt_done(ccb); 950 return; 951 } 952 if (nsegments != 0) { 953 struct ahc_dma_seg *sg; 954 bus_dma_segment_t *end_seg; 955 bus_dmasync_op_t op; 956 957 end_seg = dm_segs + nsegments; 958 959 /* Copy the segments into our SG list */ 960 sg = scb->sg_list; 961 while (dm_segs < end_seg) { 962 uint32_t len; 963 964 sg->addr = aic_htole32(dm_segs->ds_addr); 965 len = dm_segs->ds_len 966 | ((dm_segs->ds_addr >> 8) & 0x7F000000); 967 sg->len = aic_htole32(len); 968 sg++; 969 dm_segs++; 970 } 971 972 /* 973 * Note where to find the SG entries in bus space. 974 * We also set the full residual flag which the 975 * sequencer will clear as soon as a data transfer 976 * occurs. 977 */ 978 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID); 979 980 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 981 op = BUS_DMASYNC_PREREAD; 982 else 983 op = BUS_DMASYNC_PREWRITE; 984 985 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 986 987 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 988 struct target_data *tdata; 989 990 tdata = &scb->hscb->shared_data.tdata; 991 tdata->target_phases |= DPHASE_PENDING; 992 /* 993 * CAM data direction is relative to the initiator. 994 */ 995 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 996 tdata->data_phase = P_DATAOUT; 997 else 998 tdata->data_phase = P_DATAIN; 999 1000 /* 1001 * If the transfer is of an odd length and in the 1002 * "in" direction (scsi->HostBus), then it may 1003 * trigger a bug in the 'WideODD' feature of 1004 * non-Ultra2 chips. Force the total data-length 1005 * to be even by adding an extra, 1 byte, SG, 1006 * element. We do this even if we are not currently 1007 * negotiated wide as negotiation could occur before 1008 * this command is executed. 1009 */ 1010 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0 1011 && (ccb->csio.dxfer_len & 0x1) != 0 1012 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1013 1014 nsegments++; 1015 if (nsegments > AHC_NSEG) { 1016 1017 aic_set_transaction_status(scb, 1018 CAM_REQ_TOO_BIG); 1019 bus_dmamap_unload(ahc->buffer_dmat, 1020 scb->dmamap); 1021 ahc_free_scb(ahc, scb); 1022 xpt_done(ccb); 1023 return; 1024 } 1025 sg->addr = aic_htole32(ahc->dma_bug_buf); 1026 sg->len = aic_htole32(1); 1027 sg++; 1028 } 1029 } 1030 sg--; 1031 sg->len |= aic_htole32(AHC_DMA_LAST_SEG); 1032 1033 /* Copy the first SG into the "current" data pointer area */ 1034 scb->hscb->dataptr = scb->sg_list->addr; 1035 scb->hscb->datacnt = scb->sg_list->len; 1036 } else { 1037 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL); 1038 scb->hscb->dataptr = 0; 1039 scb->hscb->datacnt = 0; 1040 } 1041 1042 scb->sg_count = nsegments; 1043 1044 /* 1045 * Last time we need to check if this SCB needs to 1046 * be aborted. 1047 */ 1048 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1049 if (nsegments != 0) 1050 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 1051 ahc_free_scb(ahc, scb); 1052 xpt_done(ccb); 1053 return; 1054 } 1055 1056 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid), 1057 SCSIID_OUR_ID(scb->hscb->scsiid), 1058 SCSIID_TARGET(ahc, scb->hscb->scsiid), 1059 &tstate); 1060 1061 mask = SCB_GET_TARGET_MASK(ahc, scb); 1062 scb->hscb->scsirate = tinfo->scsirate; 1063 scb->hscb->scsioffset = tinfo->curr.offset; 1064 if ((tstate->ultraenb & mask) != 0) 1065 scb->hscb->control |= ULTRAENB; 1066 1067 if ((tstate->discenable & mask) != 0 1068 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1069 scb->hscb->control |= DISCENB; 1070 1071 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1072 && (tinfo->goal.width != 0 1073 || tinfo->goal.offset != 0 1074 || tinfo->goal.ppr_options != 0)) { 1075 scb->flags |= SCB_NEGOTIATE; 1076 scb->hscb->control |= MK_MESSAGE; 1077 } else if ((tstate->auto_negotiate & mask) != 0) { 1078 scb->flags |= SCB_AUTO_NEGOTIATE; 1079 scb->hscb->control |= MK_MESSAGE; 1080 } 1081 1082 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); 1083 1084 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1085 1086 /* 1087 * We only allow one untagged transaction 1088 * per target in the initiator role unless 1089 * we are storing a full busy target *lun* 1090 * table in SCB space. 1091 */ 1092 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 1093 && (ahc->flags & AHC_SCB_BTT) == 0) { 1094 struct scb_tailq *untagged_q; 1095 int target_offset; 1096 1097 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 1098 untagged_q = &(ahc->untagged_queues[target_offset]); 1099 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); 1100 scb->flags |= SCB_UNTAGGEDQ; 1101 if (TAILQ_FIRST(untagged_q) != scb) { 1102 return; 1103 } 1104 } 1105 scb->flags |= SCB_ACTIVE; 1106 1107 /* 1108 * Timers are disabled while recovery is in progress. 1109 */ 1110 aic_scb_timer_start(scb); 1111 1112 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1113 /* Define a mapping from our tag to the SCB. */ 1114 ahc->scb_data->scbindex[scb->hscb->tag] = scb; 1115 ahc_pause(ahc); 1116 if ((ahc->flags & AHC_PAGESCBS) == 0) 1117 ahc_outb(ahc, SCBPTR, scb->hscb->tag); 1118 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag); 1119 ahc_unpause(ahc); 1120 } else { 1121 ahc_queue_scb(ahc, scb); 1122 } 1123} 1124 1125static void 1126ahc_poll(struct cam_sim *sim) 1127{ 1128 struct ahc_softc *ahc; 1129 1130 ahc = (struct ahc_softc *)cam_sim_softc(sim); 1131 ahc_intr(ahc); 1132} 1133 1134static void 1135ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 1136 struct ccb_scsiio *csio, struct scb *scb) 1137{ 1138 struct hardware_scb *hscb; 1139 struct ccb_hdr *ccb_h; 1140 1141 hscb = scb->hscb; 1142 ccb_h = &csio->ccb_h; 1143 1144 csio->resid = 0; 1145 csio->sense_resid = 0; 1146 if (ccb_h->func_code == XPT_SCSI_IO) { 1147 hscb->cdb_len = csio->cdb_len; 1148 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1149 1150 if (hscb->cdb_len > sizeof(hscb->cdb32) 1151 || (ccb_h->flags & CAM_CDB_PHYS) != 0) { 1152 aic_set_transaction_status(scb, 1153 CAM_REQ_INVALID); 1154 ahc_free_scb(ahc, scb); 1155 xpt_done((union ccb *)csio); 1156 return; 1157 } 1158 if (hscb->cdb_len > 12) { 1159 memcpy(hscb->cdb32, 1160 csio->cdb_io.cdb_ptr, 1161 hscb->cdb_len); 1162 scb->flags |= SCB_CDB32_PTR; 1163 } else { 1164 memcpy(hscb->shared_data.cdb, 1165 csio->cdb_io.cdb_ptr, 1166 hscb->cdb_len); 1167 } 1168 } else { 1169 if (hscb->cdb_len > 12) { 1170 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes, 1171 hscb->cdb_len); 1172 scb->flags |= SCB_CDB32_PTR; 1173 } else { 1174 memcpy(hscb->shared_data.cdb, 1175 csio->cdb_io.cdb_bytes, 1176 hscb->cdb_len); 1177 } 1178 } 1179 } 1180 1181 /* Only use S/G if there is a transfer */ 1182 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1183 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1184 /* We've been given a pointer to a single buffer */ 1185 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1186 int s; 1187 int error; 1188 1189 s = splsoftvm(); 1190 error = bus_dmamap_load(ahc->buffer_dmat, 1191 scb->dmamap, 1192 csio->data_ptr, 1193 csio->dxfer_len, 1194 ahc_execute_scb, 1195 scb, /*flags*/0); 1196 if (error == EINPROGRESS) { 1197 /* 1198 * So as to maintain ordering, 1199 * freeze the controller queue 1200 * until our mapping is 1201 * returned. 1202 */ 1203 xpt_freeze_simq(sim, 1204 /*count*/1); 1205 scb->io_ctx->ccb_h.status |= 1206 CAM_RELEASE_SIMQ; 1207 } 1208 splx(s); 1209 } else { 1210 struct bus_dma_segment seg; 1211 1212 /* Pointer to physical buffer */ 1213 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE) 1214 panic("ahc_setup_data - Transfer size " 1215 "larger than can device max"); 1216 1217 seg.ds_addr = 1218 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1219 seg.ds_len = csio->dxfer_len; 1220 ahc_execute_scb(scb, &seg, 1, 0); 1221 } 1222 } else { 1223 struct bus_dma_segment *segs; 1224 1225 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1226 panic("ahc_setup_data - Physical segment " 1227 "pointers unsupported"); 1228 1229 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1230 panic("ahc_setup_data - Virtual segment " 1231 "addresses unsupported"); 1232 1233 /* Just use the segments provided */ 1234 segs = (struct bus_dma_segment *)csio->data_ptr; 1235 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0); 1236 } 1237 } else { 1238 ahc_execute_scb(scb, NULL, 0, 0); 1239 } 1240} 1241 1242static void 1243ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb) 1244{ 1245 union ccb *abort_ccb; 1246 1247 abort_ccb = ccb->cab.abort_ccb; 1248 switch (abort_ccb->ccb_h.func_code) { 1249 case XPT_ACCEPT_TARGET_IO: 1250 case XPT_IMMED_NOTIFY: 1251 case XPT_CONT_TARGET_IO: 1252 { 1253 struct ahc_tmode_tstate *tstate; 1254 struct ahc_tmode_lstate *lstate; 1255 struct ccb_hdr_slist *list; 1256 cam_status status; 1257 1258 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate, 1259 &lstate, TRUE); 1260 1261 if (status != CAM_REQ_CMP) { 1262 ccb->ccb_h.status = status; 1263 break; 1264 } 1265 1266 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1267 list = &lstate->accept_tios; 1268 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1269 list = &lstate->immed_notifies; 1270 else 1271 list = NULL; 1272 1273 if (list != NULL) { 1274 struct ccb_hdr *curelm; 1275 int found; 1276 1277 curelm = SLIST_FIRST(list); 1278 found = 0; 1279 if (curelm == &abort_ccb->ccb_h) { 1280 found = 1; 1281 SLIST_REMOVE_HEAD(list, sim_links.sle); 1282 } else { 1283 while(curelm != NULL) { 1284 struct ccb_hdr *nextelm; 1285 1286 nextelm = 1287 SLIST_NEXT(curelm, sim_links.sle); 1288 1289 if (nextelm == &abort_ccb->ccb_h) { 1290 found = 1; 1291 SLIST_NEXT(curelm, 1292 sim_links.sle) = 1293 SLIST_NEXT(nextelm, 1294 sim_links.sle); 1295 break; 1296 } 1297 curelm = nextelm; 1298 } 1299 } 1300 1301 if (found) { 1302 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1303 xpt_done(abort_ccb); 1304 ccb->ccb_h.status = CAM_REQ_CMP; 1305 } else { 1306 xpt_print_path(abort_ccb->ccb_h.path); 1307 printf("Not found\n"); 1308 ccb->ccb_h.status = CAM_PATH_INVALID; 1309 } 1310 break; 1311 } 1312 /* FALLTHROUGH */ 1313 } 1314 case XPT_SCSI_IO: 1315 /* XXX Fully implement the hard ones */ 1316 ccb->ccb_h.status = CAM_UA_ABORT; 1317 break; 1318 default: 1319 ccb->ccb_h.status = CAM_REQ_INVALID; 1320 break; 1321 } 1322 xpt_done(ccb); 1323} 1324 1325void 1326ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, 1327 u_int lun, ac_code code, void *opt_arg) 1328{ 1329 struct ccb_trans_settings cts; 1330 struct cam_path *path; 1331 void *arg; 1332 int error; 1333 1334 arg = NULL; 1335 error = ahc_create_path(ahc, channel, target, lun, &path); 1336 1337 if (error != CAM_REQ_CMP) 1338 return; 1339 1340 switch (code) { 1341 case AC_TRANSFER_NEG: 1342 { 1343 struct ccb_trans_settings_scsi *scsi; 1344 1345 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1346 scsi = &cts.proto_specific.scsi; 1347 cts.ccb_h.path = path; 1348 cts.ccb_h.target_id = target; 1349 cts.ccb_h.target_lun = lun; 1350 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id 1351 : ahc->our_id_b, 1352 channel, &cts); 1353 arg = &cts; 1354 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1355 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1356 if (opt_arg == NULL) 1357 break; 1358 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED) 1359 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1360 scsi->valid |= CTS_SCSI_VALID_TQ; 1361 break; 1362 } 1363 case AC_SENT_BDR: 1364 case AC_BUS_RESET: 1365 break; 1366 default: 1367 panic("ahc_send_async: Unexpected async event"); 1368 } 1369 xpt_async(code, path, arg); 1370 xpt_free_path(path); 1371} 1372 1373void 1374ahc_platform_set_tags(struct ahc_softc *ahc, 1375 struct ahc_devinfo *devinfo, int enable) 1376{ 1377} 1378 1379int 1380ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) 1381{ 1382 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, 1383 M_NOWAIT | M_ZERO); 1384 if (ahc->platform_data == NULL) 1385 return (ENOMEM); 1386 return (0); 1387} 1388 1389void 1390ahc_platform_free(struct ahc_softc *ahc) 1391{ 1392 struct ahc_platform_data *pdata; 1393 1394 pdata = ahc->platform_data; 1395 if (pdata != NULL) { 1396 if (pdata->regs != NULL) 1397 bus_release_resource(ahc->dev_softc, 1398 pdata->regs_res_type, 1399 pdata->regs_res_id, 1400 pdata->regs); 1401 1402 if (pdata->irq != NULL) 1403 bus_release_resource(ahc->dev_softc, 1404 pdata->irq_res_type, 1405 0, pdata->irq); 1406 1407 if (pdata->sim_b != NULL) { 1408 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL); 1409 xpt_free_path(pdata->path_b); 1410 xpt_bus_deregister(cam_sim_path(pdata->sim_b)); 1411 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE); 1412 } 1413 if (pdata->sim != NULL) { 1414 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1415 xpt_free_path(pdata->path); 1416 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1417 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1418 } 1419 if (pdata->eh != NULL) 1420 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1421 free(ahc->platform_data, M_DEVBUF); 1422 } 1423} 1424 1425int 1426ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) 1427{ 1428 /* We don't sort softcs under FreeBSD so report equal always */ 1429 return (0); 1430} 1431 1432int 1433ahc_detach(device_t dev) 1434{ 1435 struct ahc_softc *ahc; 1436 1437 device_printf(dev, "detaching device\n"); 1438 ahc = device_get_softc(dev); 1439 ahc_lock(ahc); 1440 TAILQ_REMOVE(&ahc_tailq, ahc, links); 1441 ahc_intr_enable(ahc, FALSE); 1442 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih); 1443 ahc_unlock(ahc); 1444 ahc_free(ahc); 1445 return (0); 1446} 1447 1448#if 0 1449static void 1450ahc_dump_targcmd(struct target_cmd *cmd) 1451{ 1452 uint8_t *byte; 1453 uint8_t *last_byte; 1454 int i; 1455 1456 byte = &cmd->initiator_channel; 1457 /* Debugging info for received commands */ 1458 last_byte = &cmd[1].initiator_channel; 1459 1460 i = 0; 1461 while (byte < last_byte) { 1462 if (i == 0) 1463 printf("\t"); 1464 printf("%#x", *byte++); 1465 i++; 1466 if (i == 8) { 1467 printf("\n"); 1468 i = 0; 1469 } else { 1470 printf(", "); 1471 } 1472 } 1473} 1474#endif 1475 1476static int 1477ahc_modevent(module_t mod, int type, void *data) 1478{ 1479 /* XXX Deal with busy status on unload. */ 1480 /* XXX Deal with unknown events */ 1481 return 0; 1482} 1483 1484static moduledata_t ahc_mod = { 1485 "ahc", 1486 ahc_modevent, 1487 NULL 1488}; 1489 1490DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1491MODULE_DEPEND(ahc, cam, 1, 1, 1); 1492MODULE_VERSION(ahc, 1); 1493