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("$FreeBSD$"); 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 50 devclass_t ahc_devclass; 51 52 #if 0 53 static void ahc_dump_targcmd(struct target_cmd *cmd); 54 #endif 55 static int ahc_modevent(module_t mod, int type, void *data); 56 static void ahc_action(struct cam_sim *sim, union ccb *ccb); 57 static void ahc_get_tran_settings(struct ahc_softc *ahc, 58 int our_id, char channel, 59 struct ccb_trans_settings *cts); 60 static void ahc_async(void *callback_arg, uint32_t code, 61 struct cam_path *path, void *arg); 62 static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 63 int nsegments, int error); 64 static void ahc_poll(struct cam_sim *sim); 65 static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 66 struct ccb_scsiio *csio, struct scb *scb); 67 static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, 68 union ccb *ccb); 69 static int ahc_create_path(struct ahc_softc *ahc, 70 char channel, u_int target, u_int lun, 71 struct cam_path **path); 72 73 74 static int 75 ahc_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 89 int 90 ahc_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 } 118 119 int 120 aic7770_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 */ 143 int 144 ahc_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, ahc->dev_softc, 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, ahc->dev_softc, bus_id2) != 241 CAM_SUCCESS) { 242 printf("ahc_attach: Unable to attach second " 243 "bus due to resource shortage"); 244 /* 245 * We do not want to destroy the device queue 246 * because the first bus is using it. 247 */ 248 cam_sim_free(sim2, /*free_devq*/FALSE); 249 goto fail; 250 } 251 252 if (xpt_create_path(&path2, /*periph*/NULL, 253 cam_sim_path(sim2), 254 CAM_TARGET_WILDCARD, 255 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 256 xpt_bus_deregister(cam_sim_path(sim2)); 257 cam_sim_free(sim2, /*free_devq*/FALSE); 258 sim2 = NULL; 259 goto fail; 260 } 261 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5); 262 csa.ccb_h.func_code = XPT_SASYNC_CB; 263 csa.event_enable = AC_LOST_DEVICE; 264 csa.callback = ahc_async; 265 csa.callback_arg = sim2; 266 xpt_action((union ccb *)&csa); 267 count++; 268 } 269 270 fail: 271 if ((ahc->features & AHC_TWIN) != 0 272 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 273 ahc->platform_data->sim_b = sim; 274 ahc->platform_data->path_b = path; 275 ahc->platform_data->sim = sim2; 276 ahc->platform_data->path = path2; 277 } else { 278 ahc->platform_data->sim = sim; 279 ahc->platform_data->path = path; 280 ahc->platform_data->sim_b = sim2; 281 ahc->platform_data->path_b = path2; 282 } 283 ahc_unlock(ahc); 284 285 if (count != 0) { 286 /* We have to wait until after any system dumps... */ 287 ahc->platform_data->eh = 288 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown, 289 ahc, SHUTDOWN_PRI_DEFAULT); 290 ahc_intr_enable(ahc, TRUE); 291 } 292 293 return (count); 294 } 295 296 /* 297 * Catch an interrupt from the adapter 298 */ 299 void 300 ahc_platform_intr(void *arg) 301 { 302 struct ahc_softc *ahc; 303 304 ahc = (struct ahc_softc *)arg; 305 ahc_lock(ahc); 306 ahc_intr(ahc); 307 ahc_unlock(ahc); 308 } 309 310 /* 311 * We have an scb which has been processed by the 312 * adaptor, now we look to see how the operation 313 * went. 314 */ 315 void 316 ahc_done(struct ahc_softc *ahc, struct scb *scb) 317 { 318 union ccb *ccb; 319 320 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 321 ("ahc_done - scb %d\n", scb->hscb->tag)); 322 323 ccb = scb->io_ctx; 324 LIST_REMOVE(scb, pending_links); 325 if ((scb->flags & SCB_TIMEDOUT) != 0) 326 LIST_REMOVE(scb, timedout_links); 327 if ((scb->flags & SCB_UNTAGGEDQ) != 0) { 328 struct scb_tailq *untagged_q; 329 int target_offset; 330 331 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 332 untagged_q = &ahc->untagged_queues[target_offset]; 333 TAILQ_REMOVE(untagged_q, scb, links.tqe); 334 scb->flags &= ~SCB_UNTAGGEDQ; 335 ahc_run_untagged_queue(ahc, untagged_q); 336 } 337 338 callout_stop(&scb->io_timer); 339 340 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 341 bus_dmasync_op_t op; 342 343 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 344 op = BUS_DMASYNC_POSTREAD; 345 else 346 op = BUS_DMASYNC_POSTWRITE; 347 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 348 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 349 } 350 351 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 352 struct cam_path *ccb_path; 353 354 /* 355 * If we have finally disconnected, clean up our 356 * pending device state. 357 * XXX - There may be error states that cause where 358 * we will remain connected. 359 */ 360 ccb_path = ccb->ccb_h.path; 361 if (ahc->pending_device != NULL 362 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) { 363 364 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 365 ahc->pending_device = NULL; 366 } else { 367 if (bootverbose) { 368 xpt_print_path(ccb->ccb_h.path); 369 printf("Still connected\n"); 370 } 371 aic_freeze_ccb(ccb); 372 } 373 } 374 375 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 376 ccb->ccb_h.status |= CAM_REQ_CMP; 377 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 378 ahc_free_scb(ahc, scb); 379 xpt_done(ccb); 380 return; 381 } 382 383 /* 384 * If the recovery SCB completes, we have to be 385 * out of our timeout. 386 */ 387 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 388 struct scb *list_scb; 389 390 ahc->scb_data->recovery_scbs--; 391 392 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 393 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 394 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 395 396 if (ahc->scb_data->recovery_scbs == 0) { 397 /* 398 * All recovery actions have completed successfully, 399 * so reinstate the timeouts for all other pending 400 * commands. 401 */ 402 LIST_FOREACH(list_scb, &ahc->pending_scbs, 403 pending_links) { 404 405 aic_scb_timer_reset(list_scb, 406 aic_get_timeout(scb)); 407 } 408 409 ahc_print_path(ahc, scb); 410 printf("no longer in timeout, status = %x\n", 411 ccb->ccb_h.status); 412 } 413 } 414 415 /* Don't clobber any existing error state */ 416 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 417 ccb->ccb_h.status |= CAM_REQ_CMP; 418 } else if ((scb->flags & SCB_SENSE) != 0) { 419 /* 420 * We performed autosense retrieval. 421 * 422 * Zero any sense not transferred by the 423 * device. The SCSI spec mandates that any 424 * untransfered data should be assumed to be 425 * zero. Complete the 'bounce' of sense information 426 * through buffers accessible via bus-space by 427 * copying it into the clients csio. 428 */ 429 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 430 memcpy(&ccb->csio.sense_data, 431 ahc_get_sense_buf(ahc, scb), 432 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK) 433 - ccb->csio.sense_resid); 434 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 435 } 436 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 437 ahc_free_scb(ahc, scb); 438 xpt_done(ccb); 439 } 440 441 static void 442 ahc_action(struct cam_sim *sim, union ccb *ccb) 443 { 444 struct ahc_softc *ahc; 445 struct ahc_tmode_lstate *lstate; 446 u_int target_id; 447 u_int our_id; 448 449 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n")); 450 451 ahc = (struct ahc_softc *)cam_sim_softc(sim); 452 453 target_id = ccb->ccb_h.target_id; 454 our_id = SIM_SCSI_ID(ahc, sim); 455 456 switch (ccb->ccb_h.func_code) { 457 /* Common cases first */ 458 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 459 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 460 { 461 struct ahc_tmode_tstate *tstate; 462 cam_status status; 463 464 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 465 &lstate, TRUE); 466 467 if (status != CAM_REQ_CMP) { 468 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 469 /* Response from the black hole device */ 470 tstate = NULL; 471 lstate = ahc->black_hole; 472 } else { 473 ccb->ccb_h.status = status; 474 xpt_done(ccb); 475 break; 476 } 477 } 478 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 479 480 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 481 sim_links.sle); 482 ccb->ccb_h.status = CAM_REQ_INPROG; 483 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0) 484 ahc_run_tqinfifo(ahc, /*paused*/FALSE); 485 break; 486 } 487 488 /* 489 * The target_id represents the target we attempt to 490 * select. In target mode, this is the initiator of 491 * the original command. 492 */ 493 our_id = target_id; 494 target_id = ccb->csio.init_id; 495 /* FALLTHROUGH */ 496 } 497 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 498 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 499 { 500 struct scb *scb; 501 struct hardware_scb *hscb; 502 503 if ((ahc->flags & AHC_INITIATORROLE) == 0 504 && (ccb->ccb_h.func_code == XPT_SCSI_IO 505 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 506 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 507 xpt_done(ccb); 508 return; 509 } 510 511 /* 512 * get an scb to use. 513 */ 514 if ((scb = ahc_get_scb(ahc)) == NULL) { 515 516 xpt_freeze_simq(sim, /*count*/1); 517 ahc->flags |= AHC_RESOURCE_SHORTAGE; 518 ccb->ccb_h.status = CAM_REQUEUE_REQ; 519 xpt_done(ccb); 520 return; 521 } 522 523 hscb = scb->hscb; 524 525 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 526 ("start scb(%p)\n", scb)); 527 scb->io_ctx = ccb; 528 /* 529 * So we can find the SCB when an abort is requested 530 */ 531 ccb->ccb_h.ccb_scb_ptr = scb; 532 533 /* 534 * Put all the arguments for the xfer in the scb 535 */ 536 hscb->control = 0; 537 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id); 538 hscb->lun = ccb->ccb_h.target_lun; 539 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 540 hscb->cdb_len = 0; 541 scb->flags |= SCB_DEVICE_RESET; 542 hscb->control |= MK_MESSAGE; 543 ahc_execute_scb(scb, NULL, 0, 0); 544 } else { 545 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 546 struct target_data *tdata; 547 548 tdata = &hscb->shared_data.tdata; 549 if (ahc->pending_device == lstate) 550 scb->flags |= SCB_TARGET_IMMEDIATE; 551 hscb->control |= TARGET_SCB; 552 scb->flags |= SCB_TARGET_SCB; 553 tdata->target_phases = 0; 554 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 555 tdata->target_phases |= SPHASE_PENDING; 556 tdata->scsi_status = 557 ccb->csio.scsi_status; 558 } 559 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 560 tdata->target_phases |= NO_DISCONNECT; 561 562 tdata->initiator_tag = ccb->csio.tag_id; 563 } 564 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 565 hscb->control |= ccb->csio.tag_action; 566 567 ahc_setup_data(ahc, sim, &ccb->csio, scb); 568 } 569 break; 570 } 571 case XPT_NOTIFY_ACKNOWLEDGE: 572 case XPT_IMMEDIATE_NOTIFY: 573 { 574 struct ahc_tmode_tstate *tstate; 575 struct ahc_tmode_lstate *lstate; 576 cam_status status; 577 578 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 579 &lstate, TRUE); 580 581 if (status != CAM_REQ_CMP) { 582 ccb->ccb_h.status = status; 583 xpt_done(ccb); 584 break; 585 } 586 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 587 sim_links.sle); 588 ccb->ccb_h.status = CAM_REQ_INPROG; 589 ahc_send_lstate_events(ahc, lstate); 590 break; 591 } 592 case XPT_EN_LUN: /* Enable LUN as a target */ 593 ahc_handle_en_lun(ahc, sim, ccb); 594 xpt_done(ccb); 595 break; 596 case XPT_ABORT: /* Abort the specified CCB */ 597 { 598 ahc_abort_ccb(ahc, sim, ccb); 599 break; 600 } 601 case XPT_SET_TRAN_SETTINGS: 602 { 603 struct ahc_devinfo devinfo; 604 struct ccb_trans_settings *cts; 605 struct ccb_trans_settings_scsi *scsi; 606 struct ccb_trans_settings_spi *spi; 607 struct ahc_initiator_tinfo *tinfo; 608 struct ahc_tmode_tstate *tstate; 609 uint16_t *discenable; 610 uint16_t *tagenable; 611 u_int update_type; 612 613 cts = &ccb->cts; 614 scsi = &cts->proto_specific.scsi; 615 spi = &cts->xport_specific.spi; 616 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 617 cts->ccb_h.target_id, 618 cts->ccb_h.target_lun, 619 SIM_CHANNEL(ahc, sim), 620 ROLE_UNKNOWN); 621 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 622 devinfo.our_scsiid, 623 devinfo.target, &tstate); 624 update_type = 0; 625 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 626 update_type |= AHC_TRANS_GOAL; 627 discenable = &tstate->discenable; 628 tagenable = &tstate->tagenable; 629 tinfo->curr.protocol_version = 630 cts->protocol_version; 631 tinfo->curr.transport_version = 632 cts->transport_version; 633 tinfo->goal.protocol_version = 634 cts->protocol_version; 635 tinfo->goal.transport_version = 636 cts->transport_version; 637 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 638 update_type |= AHC_TRANS_USER; 639 discenable = &ahc->user_discenable; 640 tagenable = &ahc->user_tagenable; 641 tinfo->user.protocol_version = 642 cts->protocol_version; 643 tinfo->user.transport_version = 644 cts->transport_version; 645 } else { 646 ccb->ccb_h.status = CAM_REQ_INVALID; 647 xpt_done(ccb); 648 break; 649 } 650 651 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 652 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 653 *discenable |= devinfo.target_mask; 654 else 655 *discenable &= ~devinfo.target_mask; 656 } 657 658 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 659 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 660 *tagenable |= devinfo.target_mask; 661 else 662 *tagenable &= ~devinfo.target_mask; 663 } 664 665 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 666 ahc_validate_width(ahc, /*tinfo limit*/NULL, 667 &spi->bus_width, ROLE_UNKNOWN); 668 ahc_set_width(ahc, &devinfo, spi->bus_width, 669 update_type, /*paused*/FALSE); 670 } 671 672 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 673 if (update_type == AHC_TRANS_USER) 674 spi->ppr_options = tinfo->user.ppr_options; 675 else 676 spi->ppr_options = tinfo->goal.ppr_options; 677 } 678 679 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 680 if (update_type == AHC_TRANS_USER) 681 spi->sync_offset = tinfo->user.offset; 682 else 683 spi->sync_offset = tinfo->goal.offset; 684 } 685 686 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 687 if (update_type == AHC_TRANS_USER) 688 spi->sync_period = tinfo->user.period; 689 else 690 spi->sync_period = tinfo->goal.period; 691 } 692 693 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 694 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 695 struct ahc_syncrate *syncrate; 696 u_int maxsync; 697 698 if ((ahc->features & AHC_ULTRA2) != 0) 699 maxsync = AHC_SYNCRATE_DT; 700 else if ((ahc->features & AHC_ULTRA) != 0) 701 maxsync = AHC_SYNCRATE_ULTRA; 702 else 703 maxsync = AHC_SYNCRATE_FAST; 704 705 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 706 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 707 708 syncrate = ahc_find_syncrate(ahc, &spi->sync_period, 709 &spi->ppr_options, 710 maxsync); 711 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 712 syncrate, &spi->sync_offset, 713 spi->bus_width, ROLE_UNKNOWN); 714 715 /* We use a period of 0 to represent async */ 716 if (spi->sync_offset == 0) { 717 spi->sync_period = 0; 718 spi->ppr_options = 0; 719 } 720 721 ahc_set_syncrate(ahc, &devinfo, syncrate, 722 spi->sync_period, spi->sync_offset, 723 spi->ppr_options, update_type, 724 /*paused*/FALSE); 725 } 726 ccb->ccb_h.status = CAM_REQ_CMP; 727 xpt_done(ccb); 728 break; 729 } 730 case XPT_GET_TRAN_SETTINGS: 731 /* Get default/user set transfer settings for the target */ 732 { 733 734 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim), 735 SIM_CHANNEL(ahc, sim), &ccb->cts); 736 xpt_done(ccb); 737 break; 738 } 739 case XPT_CALC_GEOMETRY: 740 { 741 int extended; 742 743 extended = SIM_IS_SCSIBUS_B(ahc, sim) 744 ? ahc->flags & AHC_EXTENDED_TRANS_B 745 : ahc->flags & AHC_EXTENDED_TRANS_A; 746 aic_calc_geometry(&ccb->ccg, extended); 747 xpt_done(ccb); 748 break; 749 } 750 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 751 { 752 int found; 753 754 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim), 755 /*initiate reset*/TRUE); 756 if (bootverbose) { 757 xpt_print_path(SIM_PATH(ahc, sim)); 758 printf("SCSI bus reset delivered. " 759 "%d SCBs aborted.\n", found); 760 } 761 ccb->ccb_h.status = CAM_REQ_CMP; 762 xpt_done(ccb); 763 break; 764 } 765 case XPT_TERM_IO: /* Terminate the I/O process */ 766 /* XXX Implement */ 767 ccb->ccb_h.status = CAM_REQ_INVALID; 768 xpt_done(ccb); 769 break; 770 case XPT_PATH_INQ: /* Path routing inquiry */ 771 { 772 struct ccb_pathinq *cpi = &ccb->cpi; 773 774 cpi->version_num = 1; /* XXX??? */ 775 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 776 if ((ahc->features & AHC_WIDE) != 0) 777 cpi->hba_inquiry |= PI_WIDE_16; 778 if ((ahc->features & AHC_TARGETMODE) != 0) { 779 cpi->target_sprt = PIT_PROCESSOR 780 | PIT_DISCONNECT 781 | PIT_TERM_IO; 782 } else { 783 cpi->target_sprt = 0; 784 } 785 cpi->hba_misc = 0; 786 cpi->hba_eng_cnt = 0; 787 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7; 788 cpi->max_lun = AHC_NUM_LUNS - 1; 789 if (SIM_IS_SCSIBUS_B(ahc, sim)) { 790 cpi->initiator_id = ahc->our_id_b; 791 if ((ahc->flags & AHC_RESET_BUS_B) == 0) 792 cpi->hba_misc |= PIM_NOBUSRESET; 793 } else { 794 cpi->initiator_id = ahc->our_id; 795 if ((ahc->flags & AHC_RESET_BUS_A) == 0) 796 cpi->hba_misc |= PIM_NOBUSRESET; 797 } 798 cpi->bus_id = cam_sim_bus(sim); 799 cpi->base_transfer_speed = 3300; 800 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 801 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 802 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 803 cpi->unit_number = cam_sim_unit(sim); 804 cpi->protocol = PROTO_SCSI; 805 cpi->protocol_version = SCSI_REV_2; 806 cpi->transport = XPORT_SPI; 807 cpi->transport_version = 2; 808 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 809 if ((ahc->features & AHC_DT) != 0) { 810 cpi->transport_version = 3; 811 cpi->xport_specific.spi.ppr_options = 812 SID_SPI_CLOCK_DT_ST; 813 } 814 cpi->ccb_h.status = CAM_REQ_CMP; 815 xpt_done(ccb); 816 break; 817 } 818 default: 819 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 820 xpt_done(ccb); 821 break; 822 } 823 } 824 825 static void 826 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel, 827 struct ccb_trans_settings *cts) 828 { 829 struct ahc_devinfo devinfo; 830 struct ccb_trans_settings_scsi *scsi; 831 struct ccb_trans_settings_spi *spi; 832 struct ahc_initiator_tinfo *targ_info; 833 struct ahc_tmode_tstate *tstate; 834 struct ahc_transinfo *tinfo; 835 836 scsi = &cts->proto_specific.scsi; 837 spi = &cts->xport_specific.spi; 838 ahc_compile_devinfo(&devinfo, our_id, 839 cts->ccb_h.target_id, 840 cts->ccb_h.target_lun, 841 channel, ROLE_UNKNOWN); 842 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 843 devinfo.our_scsiid, 844 devinfo.target, &tstate); 845 846 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 847 tinfo = &targ_info->curr; 848 else 849 tinfo = &targ_info->user; 850 851 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 852 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 853 if (cts->type == CTS_TYPE_USER_SETTINGS) { 854 if ((ahc->user_discenable & devinfo.target_mask) != 0) 855 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 856 857 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 858 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 859 } else { 860 if ((tstate->discenable & devinfo.target_mask) != 0) 861 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 862 863 if ((tstate->tagenable & devinfo.target_mask) != 0) 864 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 865 } 866 cts->protocol_version = tinfo->protocol_version; 867 cts->transport_version = tinfo->transport_version; 868 869 spi->sync_period = tinfo->period; 870 spi->sync_offset = tinfo->offset; 871 spi->bus_width = tinfo->width; 872 spi->ppr_options = tinfo->ppr_options; 873 874 cts->protocol = PROTO_SCSI; 875 cts->transport = XPORT_SPI; 876 spi->valid = CTS_SPI_VALID_SYNC_RATE 877 | CTS_SPI_VALID_SYNC_OFFSET 878 | CTS_SPI_VALID_BUS_WIDTH 879 | CTS_SPI_VALID_PPR_OPTIONS; 880 881 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 882 scsi->valid = CTS_SCSI_VALID_TQ; 883 spi->valid |= CTS_SPI_VALID_DISC; 884 } else { 885 scsi->valid = 0; 886 } 887 888 cts->ccb_h.status = CAM_REQ_CMP; 889 } 890 891 static void 892 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 893 { 894 struct ahc_softc *ahc; 895 struct cam_sim *sim; 896 897 sim = (struct cam_sim *)callback_arg; 898 ahc = (struct ahc_softc *)cam_sim_softc(sim); 899 switch (code) { 900 case AC_LOST_DEVICE: 901 { 902 struct ahc_devinfo devinfo; 903 904 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 905 xpt_path_target_id(path), 906 xpt_path_lun_id(path), 907 SIM_CHANNEL(ahc, sim), 908 ROLE_UNKNOWN); 909 910 /* 911 * Revert to async/narrow transfers 912 * for the next device. 913 */ 914 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 915 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE); 916 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL, 917 /*period*/0, /*offset*/0, /*ppr_options*/0, 918 AHC_TRANS_GOAL|AHC_TRANS_CUR, 919 /*paused*/FALSE); 920 break; 921 } 922 default: 923 break; 924 } 925 } 926 927 static void 928 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 929 int error) 930 { 931 struct scb *scb; 932 union ccb *ccb; 933 struct ahc_softc *ahc; 934 struct ahc_initiator_tinfo *tinfo; 935 struct ahc_tmode_tstate *tstate; 936 u_int mask; 937 938 scb = (struct scb *)arg; 939 ccb = scb->io_ctx; 940 ahc = scb->ahc_softc; 941 942 if (error != 0) { 943 if (error == EFBIG) 944 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 945 else 946 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 947 if (nsegments != 0) 948 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 949 ahc_free_scb(ahc, scb); 950 xpt_done(ccb); 951 return; 952 } 953 if (nsegments != 0) { 954 struct ahc_dma_seg *sg; 955 bus_dma_segment_t *end_seg; 956 bus_dmasync_op_t op; 957 958 end_seg = dm_segs + nsegments; 959 960 /* Copy the segments into our SG list */ 961 sg = scb->sg_list; 962 while (dm_segs < end_seg) { 963 uint32_t len; 964 965 sg->addr = aic_htole32(dm_segs->ds_addr); 966 len = dm_segs->ds_len 967 | ((dm_segs->ds_addr >> 8) & 0x7F000000); 968 sg->len = aic_htole32(len); 969 sg++; 970 dm_segs++; 971 } 972 973 /* 974 * Note where to find the SG entries in bus space. 975 * We also set the full residual flag which the 976 * sequencer will clear as soon as a data transfer 977 * occurs. 978 */ 979 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID); 980 981 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 982 op = BUS_DMASYNC_PREREAD; 983 else 984 op = BUS_DMASYNC_PREWRITE; 985 986 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 987 988 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 989 struct target_data *tdata; 990 991 tdata = &scb->hscb->shared_data.tdata; 992 tdata->target_phases |= DPHASE_PENDING; 993 /* 994 * CAM data direction is relative to the initiator. 995 */ 996 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 997 tdata->data_phase = P_DATAOUT; 998 else 999 tdata->data_phase = P_DATAIN; 1000 1001 /* 1002 * If the transfer is of an odd length and in the 1003 * "in" direction (scsi->HostBus), then it may 1004 * trigger a bug in the 'WideODD' feature of 1005 * non-Ultra2 chips. Force the total data-length 1006 * to be even by adding an extra, 1 byte, SG, 1007 * element. We do this even if we are not currently 1008 * negotiated wide as negotiation could occur before 1009 * this command is executed. 1010 */ 1011 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0 1012 && (ccb->csio.dxfer_len & 0x1) != 0 1013 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1014 1015 nsegments++; 1016 if (nsegments > AHC_NSEG) { 1017 1018 aic_set_transaction_status(scb, 1019 CAM_REQ_TOO_BIG); 1020 bus_dmamap_unload(ahc->buffer_dmat, 1021 scb->dmamap); 1022 ahc_free_scb(ahc, scb); 1023 xpt_done(ccb); 1024 return; 1025 } 1026 sg->addr = aic_htole32(ahc->dma_bug_buf); 1027 sg->len = aic_htole32(1); 1028 sg++; 1029 } 1030 } 1031 sg--; 1032 sg->len |= aic_htole32(AHC_DMA_LAST_SEG); 1033 1034 /* Copy the first SG into the "current" data pointer area */ 1035 scb->hscb->dataptr = scb->sg_list->addr; 1036 scb->hscb->datacnt = scb->sg_list->len; 1037 } else { 1038 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL); 1039 scb->hscb->dataptr = 0; 1040 scb->hscb->datacnt = 0; 1041 } 1042 1043 scb->sg_count = nsegments; 1044 1045 /* 1046 * Last time we need to check if this SCB needs to 1047 * be aborted. 1048 */ 1049 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1050 if (nsegments != 0) 1051 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 1052 ahc_free_scb(ahc, scb); 1053 xpt_done(ccb); 1054 return; 1055 } 1056 1057 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid), 1058 SCSIID_OUR_ID(scb->hscb->scsiid), 1059 SCSIID_TARGET(ahc, scb->hscb->scsiid), 1060 &tstate); 1061 1062 mask = SCB_GET_TARGET_MASK(ahc, scb); 1063 scb->hscb->scsirate = tinfo->scsirate; 1064 scb->hscb->scsioffset = tinfo->curr.offset; 1065 if ((tstate->ultraenb & mask) != 0) 1066 scb->hscb->control |= ULTRAENB; 1067 1068 if ((tstate->discenable & mask) != 0 1069 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1070 scb->hscb->control |= DISCENB; 1071 1072 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1073 && (tinfo->goal.width != 0 1074 || tinfo->goal.offset != 0 1075 || tinfo->goal.ppr_options != 0)) { 1076 scb->flags |= SCB_NEGOTIATE; 1077 scb->hscb->control |= MK_MESSAGE; 1078 } else if ((tstate->auto_negotiate & mask) != 0) { 1079 scb->flags |= SCB_AUTO_NEGOTIATE; 1080 scb->hscb->control |= MK_MESSAGE; 1081 } 1082 1083 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); 1084 1085 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1086 1087 /* 1088 * We only allow one untagged transaction 1089 * per target in the initiator role unless 1090 * we are storing a full busy target *lun* 1091 * table in SCB space. 1092 */ 1093 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 1094 && (ahc->flags & AHC_SCB_BTT) == 0) { 1095 struct scb_tailq *untagged_q; 1096 int target_offset; 1097 1098 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 1099 untagged_q = &(ahc->untagged_queues[target_offset]); 1100 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); 1101 scb->flags |= SCB_UNTAGGEDQ; 1102 if (TAILQ_FIRST(untagged_q) != scb) { 1103 return; 1104 } 1105 } 1106 scb->flags |= SCB_ACTIVE; 1107 1108 /* 1109 * Timers are disabled while recovery is in progress. 1110 */ 1111 aic_scb_timer_start(scb); 1112 1113 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1114 /* Define a mapping from our tag to the SCB. */ 1115 ahc->scb_data->scbindex[scb->hscb->tag] = scb; 1116 ahc_pause(ahc); 1117 if ((ahc->flags & AHC_PAGESCBS) == 0) 1118 ahc_outb(ahc, SCBPTR, scb->hscb->tag); 1119 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag); 1120 ahc_unpause(ahc); 1121 } else { 1122 ahc_queue_scb(ahc, scb); 1123 } 1124 } 1125 1126 static void 1127 ahc_poll(struct cam_sim *sim) 1128 { 1129 struct ahc_softc *ahc; 1130 1131 ahc = (struct ahc_softc *)cam_sim_softc(sim); 1132 ahc_intr(ahc); 1133 } 1134 1135 static void 1136 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 1137 struct ccb_scsiio *csio, struct scb *scb) 1138 { 1139 struct hardware_scb *hscb; 1140 struct ccb_hdr *ccb_h; 1141 int error; 1142 1143 hscb = scb->hscb; 1144 ccb_h = &csio->ccb_h; 1145 1146 csio->resid = 0; 1147 csio->sense_resid = 0; 1148 if (ccb_h->func_code == XPT_SCSI_IO) { 1149 hscb->cdb_len = csio->cdb_len; 1150 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1151 1152 if (hscb->cdb_len > sizeof(hscb->cdb32) 1153 || (ccb_h->flags & CAM_CDB_PHYS) != 0) { 1154 aic_set_transaction_status(scb, 1155 CAM_REQ_INVALID); 1156 ahc_free_scb(ahc, scb); 1157 xpt_done((union ccb *)csio); 1158 return; 1159 } 1160 if (hscb->cdb_len > 12) { 1161 memcpy(hscb->cdb32, 1162 csio->cdb_io.cdb_ptr, 1163 hscb->cdb_len); 1164 scb->flags |= SCB_CDB32_PTR; 1165 } else { 1166 memcpy(hscb->shared_data.cdb, 1167 csio->cdb_io.cdb_ptr, 1168 hscb->cdb_len); 1169 } 1170 } else { 1171 if (hscb->cdb_len > 12) { 1172 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes, 1173 hscb->cdb_len); 1174 scb->flags |= SCB_CDB32_PTR; 1175 } else { 1176 memcpy(hscb->shared_data.cdb, 1177 csio->cdb_io.cdb_bytes, 1178 hscb->cdb_len); 1179 } 1180 } 1181 } 1182 1183 error = bus_dmamap_load_ccb(ahc->buffer_dmat, 1184 scb->dmamap, 1185 (union ccb *)csio, 1186 ahc_execute_scb, 1187 scb, 1188 0); 1189 if (error == EINPROGRESS) { 1190 /* 1191 * So as to maintain ordering, 1192 * freeze the controller queue 1193 * until our mapping is 1194 * returned. 1195 */ 1196 xpt_freeze_simq(sim, /*count*/1); 1197 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; 1198 } 1199 } 1200 1201 static void 1202 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb) 1203 { 1204 union ccb *abort_ccb; 1205 1206 abort_ccb = ccb->cab.abort_ccb; 1207 switch (abort_ccb->ccb_h.func_code) { 1208 case XPT_ACCEPT_TARGET_IO: 1209 case XPT_IMMEDIATE_NOTIFY: 1210 case XPT_CONT_TARGET_IO: 1211 { 1212 struct ahc_tmode_tstate *tstate; 1213 struct ahc_tmode_lstate *lstate; 1214 struct ccb_hdr_slist *list; 1215 cam_status status; 1216 1217 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate, 1218 &lstate, TRUE); 1219 1220 if (status != CAM_REQ_CMP) { 1221 ccb->ccb_h.status = status; 1222 break; 1223 } 1224 1225 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1226 list = &lstate->accept_tios; 1227 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) 1228 list = &lstate->immed_notifies; 1229 else 1230 list = NULL; 1231 1232 if (list != NULL) { 1233 struct ccb_hdr *curelm; 1234 int found; 1235 1236 curelm = SLIST_FIRST(list); 1237 found = 0; 1238 if (curelm == &abort_ccb->ccb_h) { 1239 found = 1; 1240 SLIST_REMOVE_HEAD(list, sim_links.sle); 1241 } else { 1242 while(curelm != NULL) { 1243 struct ccb_hdr *nextelm; 1244 1245 nextelm = 1246 SLIST_NEXT(curelm, sim_links.sle); 1247 1248 if (nextelm == &abort_ccb->ccb_h) { 1249 found = 1; 1250 SLIST_NEXT(curelm, 1251 sim_links.sle) = 1252 SLIST_NEXT(nextelm, 1253 sim_links.sle); 1254 break; 1255 } 1256 curelm = nextelm; 1257 } 1258 } 1259 1260 if (found) { 1261 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1262 xpt_done(abort_ccb); 1263 ccb->ccb_h.status = CAM_REQ_CMP; 1264 } else { 1265 xpt_print_path(abort_ccb->ccb_h.path); 1266 printf("Not found\n"); 1267 ccb->ccb_h.status = CAM_PATH_INVALID; 1268 } 1269 break; 1270 } 1271 /* FALLTHROUGH */ 1272 } 1273 case XPT_SCSI_IO: 1274 /* XXX Fully implement the hard ones */ 1275 ccb->ccb_h.status = CAM_UA_ABORT; 1276 break; 1277 default: 1278 ccb->ccb_h.status = CAM_REQ_INVALID; 1279 break; 1280 } 1281 xpt_done(ccb); 1282 } 1283 1284 void 1285 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, 1286 u_int lun, ac_code code, void *opt_arg) 1287 { 1288 struct ccb_trans_settings cts; 1289 struct cam_path *path; 1290 void *arg; 1291 int error; 1292 1293 arg = NULL; 1294 error = ahc_create_path(ahc, channel, target, lun, &path); 1295 1296 if (error != CAM_REQ_CMP) 1297 return; 1298 1299 switch (code) { 1300 case AC_TRANSFER_NEG: 1301 { 1302 struct ccb_trans_settings_scsi *scsi; 1303 1304 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1305 scsi = &cts.proto_specific.scsi; 1306 cts.ccb_h.path = path; 1307 cts.ccb_h.target_id = target; 1308 cts.ccb_h.target_lun = lun; 1309 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id 1310 : ahc->our_id_b, 1311 channel, &cts); 1312 arg = &cts; 1313 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1314 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1315 if (opt_arg == NULL) 1316 break; 1317 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED) 1318 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1319 scsi->valid |= CTS_SCSI_VALID_TQ; 1320 break; 1321 } 1322 case AC_SENT_BDR: 1323 case AC_BUS_RESET: 1324 break; 1325 default: 1326 panic("ahc_send_async: Unexpected async event"); 1327 } 1328 xpt_async(code, path, arg); 1329 xpt_free_path(path); 1330 } 1331 1332 void 1333 ahc_platform_set_tags(struct ahc_softc *ahc, 1334 struct ahc_devinfo *devinfo, int enable) 1335 { 1336 } 1337 1338 int 1339 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) 1340 { 1341 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, 1342 M_NOWAIT | M_ZERO); 1343 if (ahc->platform_data == NULL) 1344 return (ENOMEM); 1345 return (0); 1346 } 1347 1348 void 1349 ahc_platform_free(struct ahc_softc *ahc) 1350 { 1351 struct ahc_platform_data *pdata; 1352 1353 pdata = ahc->platform_data; 1354 if (pdata != NULL) { 1355 if (pdata->regs != NULL) 1356 bus_release_resource(ahc->dev_softc, 1357 pdata->regs_res_type, 1358 pdata->regs_res_id, 1359 pdata->regs); 1360 1361 if (pdata->irq != NULL) 1362 bus_release_resource(ahc->dev_softc, 1363 pdata->irq_res_type, 1364 0, pdata->irq); 1365 1366 if (pdata->sim_b != NULL) { 1367 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL); 1368 xpt_free_path(pdata->path_b); 1369 xpt_bus_deregister(cam_sim_path(pdata->sim_b)); 1370 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE); 1371 } 1372 if (pdata->sim != NULL) { 1373 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1374 xpt_free_path(pdata->path); 1375 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1376 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1377 } 1378 if (pdata->eh != NULL) 1379 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1380 free(ahc->platform_data, M_DEVBUF); 1381 } 1382 } 1383 1384 int 1385 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) 1386 { 1387 /* We don't sort softcs under FreeBSD so report equal always */ 1388 return (0); 1389 } 1390 1391 int 1392 ahc_detach(device_t dev) 1393 { 1394 struct ahc_softc *ahc; 1395 1396 device_printf(dev, "detaching device\n"); 1397 ahc = device_get_softc(dev); 1398 ahc_lock(ahc); 1399 TAILQ_REMOVE(&ahc_tailq, ahc, links); 1400 ahc_intr_enable(ahc, FALSE); 1401 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih); 1402 ahc_unlock(ahc); 1403 ahc_free(ahc); 1404 return (0); 1405 } 1406 1407 #if 0 1408 static void 1409 ahc_dump_targcmd(struct target_cmd *cmd) 1410 { 1411 uint8_t *byte; 1412 uint8_t *last_byte; 1413 int i; 1414 1415 byte = &cmd->initiator_channel; 1416 /* Debugging info for received commands */ 1417 last_byte = &cmd[1].initiator_channel; 1418 1419 i = 0; 1420 while (byte < last_byte) { 1421 if (i == 0) 1422 printf("\t"); 1423 printf("%#x", *byte++); 1424 i++; 1425 if (i == 8) { 1426 printf("\n"); 1427 i = 0; 1428 } else { 1429 printf(", "); 1430 } 1431 } 1432 } 1433 #endif 1434 1435 static int 1436 ahc_modevent(module_t mod, int type, void *data) 1437 { 1438 /* XXX Deal with busy status on unload. */ 1439 /* XXX Deal with unknown events */ 1440 return 0; 1441 } 1442 1443 static moduledata_t ahc_mod = { 1444 "ahc", 1445 ahc_modevent, 1446 NULL 1447 }; 1448 1449 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1450 MODULE_DEPEND(ahc, cam, 1, 1, 1); 1451 MODULE_VERSION(ahc, 1); 1452