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