Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/dev/aic7xxx/aic7xxx_osm.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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 #if 0 51 static void ahc_dump_targcmd(struct target_cmd *cmd); 52 #endif 53 static int ahc_modevent(module_t mod, int type, void *data); 54 static void ahc_action(struct cam_sim *sim, union ccb *ccb); 55 static void ahc_get_tran_settings(struct ahc_softc *ahc, 56 int our_id, char channel, 57 struct ccb_trans_settings *cts); 58 static void ahc_async(void *callback_arg, uint32_t code, 59 struct cam_path *path, void *arg); 60 static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 61 int nsegments, int error); 62 static void ahc_poll(struct cam_sim *sim); 63 static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 64 struct ccb_scsiio *csio, struct scb *scb); 65 static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, 66 union ccb *ccb); 67 static int ahc_create_path(struct ahc_softc *ahc, 68 char channel, u_int target, u_int lun, 69 struct cam_path **path); 70 71 static int 72 ahc_create_path(struct ahc_softc *ahc, char channel, u_int target, 73 u_int lun, struct cam_path **path) 74 { 75 path_id_t path_id; 76 77 if (channel == 'B') 78 path_id = cam_sim_path(ahc->platform_data->sim_b); 79 else 80 path_id = cam_sim_path(ahc->platform_data->sim); 81 82 return (xpt_create_path(path, /*periph*/NULL, 83 path_id, target, lun)); 84 } 85 86 int 87 ahc_map_int(struct ahc_softc *ahc) 88 { 89 int error; 90 int zero; 91 int shareable; 92 93 zero = 0; 94 shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE; 95 ahc->platform_data->irq = 96 bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero, 97 RF_ACTIVE | shareable); 98 if (ahc->platform_data->irq == NULL) { 99 device_printf(ahc->dev_softc, 100 "bus_alloc_resource() failed to allocate IRQ\n"); 101 return (ENOMEM); 102 } 103 ahc->platform_data->irq_res_type = SYS_RES_IRQ; 104 105 /* Hook up our interrupt handler */ 106 error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq, 107 INTR_TYPE_CAM|INTR_MPSAFE, NULL, 108 ahc_platform_intr, ahc, &ahc->platform_data->ih); 109 110 if (error != 0) 111 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n", 112 error); 113 return (error); 114 } 115 116 int 117 aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg) 118 { 119 struct resource *regs; 120 int rid; 121 122 rid = 0; 123 regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid, 124 RF_ACTIVE); 125 if (regs == NULL) { 126 device_printf(ahc->dev_softc, "Unable to map I/O space?!\n"); 127 return ENOMEM; 128 } 129 ahc->platform_data->regs_res_type = SYS_RES_IOPORT; 130 ahc->platform_data->regs_res_id = rid; 131 ahc->platform_data->regs = regs; 132 ahc->tag = rman_get_bustag(regs); 133 ahc->bsh = rman_get_bushandle(regs); 134 return (0); 135 } 136 137 /* 138 * Attach all the sub-devices we can find 139 */ 140 int 141 ahc_attach(struct ahc_softc *ahc) 142 { 143 char ahc_info[256]; 144 struct ccb_setasync csa; 145 struct cam_devq *devq; 146 int bus_id; 147 int bus_id2; 148 struct cam_sim *sim; 149 struct cam_sim *sim2; 150 struct cam_path *path; 151 struct cam_path *path2; 152 int count; 153 154 count = 0; 155 sim = NULL; 156 sim2 = NULL; 157 path = NULL; 158 path2 = NULL; 159 160 /* 161 * Create a thread to perform all recovery. 162 */ 163 if (ahc_spawn_recovery_thread(ahc) != 0) 164 goto fail; 165 166 ahc_controller_info(ahc, ahc_info); 167 printf("%s\n", ahc_info); 168 ahc_lock(ahc); 169 170 /* 171 * Attach secondary channel first if the user has 172 * declared it the primary channel. 173 */ 174 if ((ahc->features & AHC_TWIN) != 0 175 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 176 bus_id = 1; 177 bus_id2 = 0; 178 } else { 179 bus_id = 0; 180 bus_id2 = 1; 181 } 182 183 /* 184 * Create the device queue for our SIM(s). 185 */ 186 devq = cam_simq_alloc(AHC_MAX_QUEUE); 187 if (devq == NULL) 188 goto fail; 189 190 /* 191 * Construct our first channel SIM entry 192 */ 193 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc, 194 device_get_unit(ahc->dev_softc), 195 &ahc->platform_data->mtx, 1, AHC_MAX_QUEUE, devq); 196 if (sim == NULL) { 197 cam_simq_free(devq); 198 goto fail; 199 } 200 201 if (xpt_bus_register(sim, ahc->dev_softc, bus_id) != CAM_SUCCESS) { 202 cam_sim_free(sim, /*free_devq*/TRUE); 203 sim = NULL; 204 goto fail; 205 } 206 207 if (xpt_create_path(&path, /*periph*/NULL, 208 cam_sim_path(sim), CAM_TARGET_WILDCARD, 209 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 210 xpt_bus_deregister(cam_sim_path(sim)); 211 cam_sim_free(sim, /*free_devq*/TRUE); 212 sim = NULL; 213 goto fail; 214 } 215 216 memset(&csa, 0, sizeof(csa)); 217 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 218 csa.ccb_h.func_code = XPT_SASYNC_CB; 219 csa.event_enable = AC_LOST_DEVICE; 220 csa.callback = ahc_async; 221 csa.callback_arg = sim; 222 xpt_action((union ccb *)&csa); 223 count++; 224 225 if (ahc->features & AHC_TWIN) { 226 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc", 227 ahc, device_get_unit(ahc->dev_softc), 228 &ahc->platform_data->mtx, 1, 229 AHC_MAX_QUEUE, devq); 230 231 if (sim2 == NULL) { 232 printf("ahc_attach: Unable to attach second " 233 "bus due to resource shortage"); 234 goto fail; 235 } 236 237 if (xpt_bus_register(sim2, ahc->dev_softc, bus_id2) != 238 CAM_SUCCESS) { 239 printf("ahc_attach: Unable to attach second " 240 "bus due to resource shortage"); 241 /* 242 * We do not want to destroy the device queue 243 * because the first bus is using it. 244 */ 245 cam_sim_free(sim2, /*free_devq*/FALSE); 246 goto fail; 247 } 248 249 if (xpt_create_path(&path2, /*periph*/NULL, 250 cam_sim_path(sim2), 251 CAM_TARGET_WILDCARD, 252 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 253 xpt_bus_deregister(cam_sim_path(sim2)); 254 cam_sim_free(sim2, /*free_devq*/FALSE); 255 sim2 = NULL; 256 goto fail; 257 } 258 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5); 259 csa.ccb_h.func_code = XPT_SASYNC_CB; 260 csa.event_enable = AC_LOST_DEVICE; 261 csa.callback = ahc_async; 262 csa.callback_arg = sim2; 263 xpt_action((union ccb *)&csa); 264 count++; 265 } 266 267 fail: 268 if ((ahc->features & AHC_TWIN) != 0 269 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 270 ahc->platform_data->sim_b = sim; 271 ahc->platform_data->path_b = path; 272 ahc->platform_data->sim = sim2; 273 ahc->platform_data->path = path2; 274 } else { 275 ahc->platform_data->sim = sim; 276 ahc->platform_data->path = path; 277 ahc->platform_data->sim_b = sim2; 278 ahc->platform_data->path_b = path2; 279 } 280 ahc_unlock(ahc); 281 282 if (count != 0) { 283 /* We have to wait until after any system dumps... */ 284 ahc->platform_data->eh = 285 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown, 286 ahc, SHUTDOWN_PRI_DEFAULT); 287 ahc_intr_enable(ahc, TRUE); 288 } 289 290 return (count); 291 } 292 293 /* 294 * Catch an interrupt from the adapter 295 */ 296 void 297 ahc_platform_intr(void *arg) 298 { 299 struct ahc_softc *ahc; 300 301 ahc = (struct ahc_softc *)arg; 302 ahc_lock(ahc); 303 ahc_intr(ahc); 304 ahc_unlock(ahc); 305 } 306 307 /* 308 * We have an scb which has been processed by the 309 * adaptor, now we look to see how the operation 310 * went. 311 */ 312 void 313 ahc_done(struct ahc_softc *ahc, struct scb *scb) 314 { 315 union ccb *ccb; 316 317 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 318 ("ahc_done - scb %d\n", scb->hscb->tag)); 319 320 ccb = scb->io_ctx; 321 LIST_REMOVE(scb, pending_links); 322 if ((scb->flags & SCB_TIMEDOUT) != 0) 323 LIST_REMOVE(scb, timedout_links); 324 if ((scb->flags & SCB_UNTAGGEDQ) != 0) { 325 struct scb_tailq *untagged_q; 326 int target_offset; 327 328 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 329 untagged_q = &ahc->untagged_queues[target_offset]; 330 TAILQ_REMOVE(untagged_q, scb, links.tqe); 331 scb->flags &= ~SCB_UNTAGGEDQ; 332 ahc_run_untagged_queue(ahc, untagged_q); 333 } 334 335 callout_stop(&scb->io_timer); 336 337 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 338 bus_dmasync_op_t op; 339 340 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 341 op = BUS_DMASYNC_POSTREAD; 342 else 343 op = BUS_DMASYNC_POSTWRITE; 344 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 345 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 346 } 347 348 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 349 struct cam_path *ccb_path; 350 351 /* 352 * If we have finally disconnected, clean up our 353 * pending device state. 354 * XXX - There may be error states that cause where 355 * we will remain connected. 356 */ 357 ccb_path = ccb->ccb_h.path; 358 if (ahc->pending_device != NULL 359 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) { 360 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 361 ahc->pending_device = NULL; 362 } else { 363 if (bootverbose) { 364 xpt_print_path(ccb->ccb_h.path); 365 printf("Still connected\n"); 366 } 367 aic_freeze_ccb(ccb); 368 } 369 } 370 371 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 372 ccb->ccb_h.status |= CAM_REQ_CMP; 373 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 374 ahc_free_scb(ahc, scb); 375 xpt_done(ccb); 376 return; 377 } 378 379 /* 380 * If the recovery SCB completes, we have to be 381 * out of our timeout. 382 */ 383 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 384 struct scb *list_scb; 385 386 ahc->scb_data->recovery_scbs--; 387 388 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 389 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 390 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 391 392 if (ahc->scb_data->recovery_scbs == 0) { 393 /* 394 * All recovery actions have completed successfully, 395 * so reinstate the timeouts for all other pending 396 * commands. 397 */ 398 LIST_FOREACH(list_scb, &ahc->pending_scbs, 399 pending_links) { 400 aic_scb_timer_reset(list_scb, 401 aic_get_timeout(scb)); 402 } 403 404 ahc_print_path(ahc, scb); 405 printf("no longer in timeout, status = %x\n", 406 ccb->ccb_h.status); 407 } 408 } 409 410 /* Don't clobber any existing error state */ 411 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 412 ccb->ccb_h.status |= CAM_REQ_CMP; 413 } else if ((scb->flags & SCB_SENSE) != 0) { 414 /* 415 * We performed autosense retrieval. 416 * 417 * Zero any sense not transferred by the 418 * device. The SCSI spec mandates that any 419 * untransfered data should be assumed to be 420 * zero. Complete the 'bounce' of sense information 421 * through buffers accessible via bus-space by 422 * copying it into the clients csio. 423 */ 424 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 425 memcpy(&ccb->csio.sense_data, 426 ahc_get_sense_buf(ahc, scb), 427 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK) 428 - ccb->csio.sense_resid); 429 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 430 } 431 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 432 ahc_free_scb(ahc, scb); 433 xpt_done(ccb); 434 } 435 436 static void 437 ahc_action(struct cam_sim *sim, union ccb *ccb) 438 { 439 struct ahc_softc *ahc; 440 struct ahc_tmode_lstate *lstate; 441 u_int target_id; 442 u_int our_id; 443 444 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n")); 445 446 ahc = (struct ahc_softc *)cam_sim_softc(sim); 447 448 target_id = ccb->ccb_h.target_id; 449 our_id = SIM_SCSI_ID(ahc, sim); 450 451 switch (ccb->ccb_h.func_code) { 452 /* Common cases first */ 453 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 454 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 455 { 456 struct ahc_tmode_tstate *tstate; 457 cam_status status; 458 459 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 460 &lstate, TRUE); 461 462 if (status != CAM_REQ_CMP) { 463 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 464 /* Response from the black hole device */ 465 tstate = NULL; 466 lstate = ahc->black_hole; 467 } else { 468 ccb->ccb_h.status = status; 469 xpt_done(ccb); 470 break; 471 } 472 } 473 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 474 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 475 sim_links.sle); 476 ccb->ccb_h.status = CAM_REQ_INPROG; 477 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0) 478 ahc_run_tqinfifo(ahc, /*paused*/FALSE); 479 break; 480 } 481 482 /* 483 * The target_id represents the target we attempt to 484 * select. In target mode, this is the initiator of 485 * the original command. 486 */ 487 our_id = target_id; 488 target_id = ccb->csio.init_id; 489 /* FALLTHROUGH */ 490 } 491 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 492 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 493 { 494 struct scb *scb; 495 struct hardware_scb *hscb; 496 497 if ((ahc->flags & AHC_INITIATORROLE) == 0 498 && (ccb->ccb_h.func_code == XPT_SCSI_IO 499 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 500 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 501 xpt_done(ccb); 502 return; 503 } 504 505 /* 506 * get an scb to use. 507 */ 508 if ((scb = ahc_get_scb(ahc)) == NULL) { 509 xpt_freeze_simq(sim, /*count*/1); 510 ahc->flags |= AHC_RESOURCE_SHORTAGE; 511 ccb->ccb_h.status = CAM_REQUEUE_REQ; 512 xpt_done(ccb); 513 return; 514 } 515 516 hscb = scb->hscb; 517 518 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 519 ("start scb(%p)\n", scb)); 520 scb->io_ctx = ccb; 521 /* 522 * So we can find the SCB when an abort is requested 523 */ 524 ccb->ccb_h.ccb_scb_ptr = scb; 525 526 /* 527 * Put all the arguments for the xfer in the scb 528 */ 529 hscb->control = 0; 530 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id); 531 hscb->lun = ccb->ccb_h.target_lun; 532 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 533 hscb->cdb_len = 0; 534 scb->flags |= SCB_DEVICE_RESET; 535 hscb->control |= MK_MESSAGE; 536 ahc_execute_scb(scb, NULL, 0, 0); 537 } else { 538 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 539 struct target_data *tdata; 540 541 tdata = &hscb->shared_data.tdata; 542 if (ahc->pending_device == lstate) 543 scb->flags |= SCB_TARGET_IMMEDIATE; 544 hscb->control |= TARGET_SCB; 545 scb->flags |= SCB_TARGET_SCB; 546 tdata->target_phases = 0; 547 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 548 tdata->target_phases |= SPHASE_PENDING; 549 tdata->scsi_status = 550 ccb->csio.scsi_status; 551 } 552 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 553 tdata->target_phases |= NO_DISCONNECT; 554 555 tdata->initiator_tag = ccb->csio.tag_id; 556 } 557 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 558 hscb->control |= ccb->csio.tag_action; 559 560 ahc_setup_data(ahc, sim, &ccb->csio, scb); 561 } 562 break; 563 } 564 case XPT_NOTIFY_ACKNOWLEDGE: 565 case XPT_IMMEDIATE_NOTIFY: 566 { 567 struct ahc_tmode_tstate *tstate; 568 struct ahc_tmode_lstate *lstate; 569 cam_status status; 570 571 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 572 &lstate, TRUE); 573 574 if (status != CAM_REQ_CMP) { 575 ccb->ccb_h.status = status; 576 xpt_done(ccb); 577 break; 578 } 579 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 580 sim_links.sle); 581 ccb->ccb_h.status = CAM_REQ_INPROG; 582 ahc_send_lstate_events(ahc, lstate); 583 break; 584 } 585 case XPT_EN_LUN: /* Enable LUN as a target */ 586 ahc_handle_en_lun(ahc, sim, ccb); 587 xpt_done(ccb); 588 break; 589 case XPT_ABORT: /* Abort the specified CCB */ 590 { 591 ahc_abort_ccb(ahc, sim, ccb); 592 break; 593 } 594 case XPT_SET_TRAN_SETTINGS: 595 { 596 struct ahc_devinfo devinfo; 597 struct ccb_trans_settings *cts; 598 struct ccb_trans_settings_scsi *scsi; 599 struct ccb_trans_settings_spi *spi; 600 struct ahc_initiator_tinfo *tinfo; 601 struct ahc_tmode_tstate *tstate; 602 uint16_t *discenable; 603 uint16_t *tagenable; 604 u_int update_type; 605 606 cts = &ccb->cts; 607 scsi = &cts->proto_specific.scsi; 608 spi = &cts->xport_specific.spi; 609 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 610 cts->ccb_h.target_id, 611 cts->ccb_h.target_lun, 612 SIM_CHANNEL(ahc, sim), 613 ROLE_UNKNOWN); 614 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 615 devinfo.our_scsiid, 616 devinfo.target, &tstate); 617 update_type = 0; 618 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 619 update_type |= AHC_TRANS_GOAL; 620 discenable = &tstate->discenable; 621 tagenable = &tstate->tagenable; 622 tinfo->curr.protocol_version = 623 cts->protocol_version; 624 tinfo->curr.transport_version = 625 cts->transport_version; 626 tinfo->goal.protocol_version = 627 cts->protocol_version; 628 tinfo->goal.transport_version = 629 cts->transport_version; 630 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 631 update_type |= AHC_TRANS_USER; 632 discenable = &ahc->user_discenable; 633 tagenable = &ahc->user_tagenable; 634 tinfo->user.protocol_version = 635 cts->protocol_version; 636 tinfo->user.transport_version = 637 cts->transport_version; 638 } else { 639 ccb->ccb_h.status = CAM_REQ_INVALID; 640 xpt_done(ccb); 641 break; 642 } 643 644 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 645 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 646 *discenable |= devinfo.target_mask; 647 else 648 *discenable &= ~devinfo.target_mask; 649 } 650 651 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 652 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 653 *tagenable |= devinfo.target_mask; 654 else 655 *tagenable &= ~devinfo.target_mask; 656 } 657 658 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 659 ahc_validate_width(ahc, /*tinfo limit*/NULL, 660 &spi->bus_width, ROLE_UNKNOWN); 661 ahc_set_width(ahc, &devinfo, spi->bus_width, 662 update_type, /*paused*/FALSE); 663 } 664 665 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 666 if (update_type == AHC_TRANS_USER) 667 spi->ppr_options = tinfo->user.ppr_options; 668 else 669 spi->ppr_options = tinfo->goal.ppr_options; 670 } 671 672 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 673 if (update_type == AHC_TRANS_USER) 674 spi->sync_offset = tinfo->user.offset; 675 else 676 spi->sync_offset = tinfo->goal.offset; 677 } 678 679 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 680 if (update_type == AHC_TRANS_USER) 681 spi->sync_period = tinfo->user.period; 682 else 683 spi->sync_period = tinfo->goal.period; 684 } 685 686 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 687 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 688 struct ahc_syncrate *syncrate; 689 u_int maxsync; 690 691 if ((ahc->features & AHC_ULTRA2) != 0) 692 maxsync = AHC_SYNCRATE_DT; 693 else if ((ahc->features & AHC_ULTRA) != 0) 694 maxsync = AHC_SYNCRATE_ULTRA; 695 else 696 maxsync = AHC_SYNCRATE_FAST; 697 698 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 699 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 700 701 syncrate = ahc_find_syncrate(ahc, &spi->sync_period, 702 &spi->ppr_options, 703 maxsync); 704 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 705 syncrate, &spi->sync_offset, 706 spi->bus_width, ROLE_UNKNOWN); 707 708 /* We use a period of 0 to represent async */ 709 if (spi->sync_offset == 0) { 710 spi->sync_period = 0; 711 spi->ppr_options = 0; 712 } 713 714 ahc_set_syncrate(ahc, &devinfo, syncrate, 715 spi->sync_period, spi->sync_offset, 716 spi->ppr_options, update_type, 717 /*paused*/FALSE); 718 } 719 ccb->ccb_h.status = CAM_REQ_CMP; 720 xpt_done(ccb); 721 break; 722 } 723 case XPT_GET_TRAN_SETTINGS: 724 /* Get default/user set transfer settings for the target */ 725 { 726 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim), 727 SIM_CHANNEL(ahc, sim), &ccb->cts); 728 xpt_done(ccb); 729 break; 730 } 731 case XPT_CALC_GEOMETRY: 732 { 733 int extended; 734 735 extended = SIM_IS_SCSIBUS_B(ahc, sim) 736 ? ahc->flags & AHC_EXTENDED_TRANS_B 737 : ahc->flags & AHC_EXTENDED_TRANS_A; 738 aic_calc_geometry(&ccb->ccg, extended); 739 xpt_done(ccb); 740 break; 741 } 742 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 743 { 744 int found; 745 746 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim), 747 /*initiate reset*/TRUE); 748 if (bootverbose) { 749 xpt_print_path(SIM_PATH(ahc, sim)); 750 printf("SCSI bus reset delivered. " 751 "%d SCBs aborted.\n", found); 752 } 753 ccb->ccb_h.status = CAM_REQ_CMP; 754 xpt_done(ccb); 755 break; 756 } 757 case XPT_TERM_IO: /* Terminate the I/O process */ 758 /* XXX Implement */ 759 ccb->ccb_h.status = CAM_REQ_INVALID; 760 xpt_done(ccb); 761 break; 762 case XPT_PATH_INQ: /* Path routing inquiry */ 763 { 764 struct ccb_pathinq *cpi = &ccb->cpi; 765 766 cpi->version_num = 1; /* XXX??? */ 767 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 768 if ((ahc->features & AHC_WIDE) != 0) 769 cpi->hba_inquiry |= PI_WIDE_16; 770 if ((ahc->features & AHC_TARGETMODE) != 0) { 771 cpi->target_sprt = PIT_PROCESSOR 772 | PIT_DISCONNECT 773 | PIT_TERM_IO; 774 } else { 775 cpi->target_sprt = 0; 776 } 777 cpi->hba_misc = 0; 778 cpi->hba_eng_cnt = 0; 779 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7; 780 cpi->max_lun = AHC_NUM_LUNS - 1; 781 if (SIM_IS_SCSIBUS_B(ahc, sim)) { 782 cpi->initiator_id = ahc->our_id_b; 783 if ((ahc->flags & AHC_RESET_BUS_B) == 0) 784 cpi->hba_misc |= PIM_NOBUSRESET; 785 } else { 786 cpi->initiator_id = ahc->our_id; 787 if ((ahc->flags & AHC_RESET_BUS_A) == 0) 788 cpi->hba_misc |= PIM_NOBUSRESET; 789 } 790 cpi->bus_id = cam_sim_bus(sim); 791 cpi->base_transfer_speed = 3300; 792 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 793 strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 794 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 795 cpi->unit_number = cam_sim_unit(sim); 796 cpi->protocol = PROTO_SCSI; 797 cpi->protocol_version = SCSI_REV_2; 798 cpi->transport = XPORT_SPI; 799 cpi->transport_version = 2; 800 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 801 if ((ahc->features & AHC_DT) != 0) { 802 cpi->transport_version = 3; 803 cpi->xport_specific.spi.ppr_options = 804 SID_SPI_CLOCK_DT_ST; 805 } 806 cpi->ccb_h.status = CAM_REQ_CMP; 807 xpt_done(ccb); 808 break; 809 } 810 default: 811 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 812 xpt_done(ccb); 813 break; 814 } 815 } 816 817 static void 818 ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel, 819 struct ccb_trans_settings *cts) 820 { 821 struct ahc_devinfo devinfo; 822 struct ccb_trans_settings_scsi *scsi; 823 struct ccb_trans_settings_spi *spi; 824 struct ahc_initiator_tinfo *targ_info; 825 struct ahc_tmode_tstate *tstate; 826 struct ahc_transinfo *tinfo; 827 828 scsi = &cts->proto_specific.scsi; 829 spi = &cts->xport_specific.spi; 830 ahc_compile_devinfo(&devinfo, our_id, 831 cts->ccb_h.target_id, 832 cts->ccb_h.target_lun, 833 channel, ROLE_UNKNOWN); 834 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 835 devinfo.our_scsiid, 836 devinfo.target, &tstate); 837 838 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 839 tinfo = &targ_info->curr; 840 else 841 tinfo = &targ_info->user; 842 843 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 844 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 845 if (cts->type == CTS_TYPE_USER_SETTINGS) { 846 if ((ahc->user_discenable & devinfo.target_mask) != 0) 847 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 848 849 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 850 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 851 } else { 852 if ((tstate->discenable & devinfo.target_mask) != 0) 853 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 854 855 if ((tstate->tagenable & devinfo.target_mask) != 0) 856 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 857 } 858 cts->protocol_version = tinfo->protocol_version; 859 cts->transport_version = tinfo->transport_version; 860 861 spi->sync_period = tinfo->period; 862 spi->sync_offset = tinfo->offset; 863 spi->bus_width = tinfo->width; 864 spi->ppr_options = tinfo->ppr_options; 865 866 cts->protocol = PROTO_SCSI; 867 cts->transport = XPORT_SPI; 868 spi->valid = CTS_SPI_VALID_SYNC_RATE 869 | CTS_SPI_VALID_SYNC_OFFSET 870 | CTS_SPI_VALID_BUS_WIDTH 871 | CTS_SPI_VALID_PPR_OPTIONS; 872 873 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 874 scsi->valid = CTS_SCSI_VALID_TQ; 875 spi->valid |= CTS_SPI_VALID_DISC; 876 } else { 877 scsi->valid = 0; 878 } 879 880 cts->ccb_h.status = CAM_REQ_CMP; 881 } 882 883 static void 884 ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 885 { 886 struct ahc_softc *ahc; 887 struct cam_sim *sim; 888 889 sim = (struct cam_sim *)callback_arg; 890 ahc = (struct ahc_softc *)cam_sim_softc(sim); 891 switch (code) { 892 case AC_LOST_DEVICE: 893 { 894 struct ahc_devinfo devinfo; 895 896 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 897 xpt_path_target_id(path), 898 xpt_path_lun_id(path), 899 SIM_CHANNEL(ahc, sim), 900 ROLE_UNKNOWN); 901 902 /* 903 * Revert to async/narrow transfers 904 * for the next device. 905 */ 906 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 907 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE); 908 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL, 909 /*period*/0, /*offset*/0, /*ppr_options*/0, 910 AHC_TRANS_GOAL|AHC_TRANS_CUR, 911 /*paused*/FALSE); 912 break; 913 } 914 default: 915 break; 916 } 917 } 918 919 static void 920 ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 921 int error) 922 { 923 struct scb *scb; 924 union ccb *ccb; 925 struct ahc_softc *ahc; 926 struct ahc_initiator_tinfo *tinfo; 927 struct ahc_tmode_tstate *tstate; 928 u_int mask; 929 930 scb = (struct scb *)arg; 931 ccb = scb->io_ctx; 932 ahc = scb->ahc_softc; 933 934 if (error != 0) { 935 if (error == EFBIG) 936 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 937 else 938 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 939 if (nsegments != 0) 940 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 941 ahc_free_scb(ahc, scb); 942 xpt_done(ccb); 943 return; 944 } 945 if (nsegments != 0) { 946 struct ahc_dma_seg *sg; 947 bus_dma_segment_t *end_seg; 948 bus_dmasync_op_t op; 949 950 end_seg = dm_segs + nsegments; 951 952 /* Copy the segments into our SG list */ 953 sg = scb->sg_list; 954 while (dm_segs < end_seg) { 955 uint32_t len; 956 957 sg->addr = aic_htole32(dm_segs->ds_addr); 958 len = dm_segs->ds_len 959 | ((dm_segs->ds_addr >> 8) & 0x7F000000); 960 sg->len = aic_htole32(len); 961 sg++; 962 dm_segs++; 963 } 964 965 /* 966 * Note where to find the SG entries in bus space. 967 * We also set the full residual flag which the 968 * sequencer will clear as soon as a data transfer 969 * occurs. 970 */ 971 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID); 972 973 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 974 op = BUS_DMASYNC_PREREAD; 975 else 976 op = BUS_DMASYNC_PREWRITE; 977 978 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 979 980 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 981 struct target_data *tdata; 982 983 tdata = &scb->hscb->shared_data.tdata; 984 tdata->target_phases |= DPHASE_PENDING; 985 /* 986 * CAM data direction is relative to the initiator. 987 */ 988 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 989 tdata->data_phase = P_DATAOUT; 990 else 991 tdata->data_phase = P_DATAIN; 992 993 /* 994 * If the transfer is of an odd length and in the 995 * "in" direction (scsi->HostBus), then it may 996 * trigger a bug in the 'WideODD' feature of 997 * non-Ultra2 chips. Force the total data-length 998 * to be even by adding an extra, 1 byte, SG, 999 * element. We do this even if we are not currently 1000 * negotiated wide as negotiation could occur before 1001 * this command is executed. 1002 */ 1003 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0 1004 && (ccb->csio.dxfer_len & 0x1) != 0 1005 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1006 nsegments++; 1007 if (nsegments > AHC_NSEG) { 1008 aic_set_transaction_status(scb, 1009 CAM_REQ_TOO_BIG); 1010 bus_dmamap_unload(ahc->buffer_dmat, 1011 scb->dmamap); 1012 ahc_free_scb(ahc, scb); 1013 xpt_done(ccb); 1014 return; 1015 } 1016 sg->addr = aic_htole32(ahc->dma_bug_buf); 1017 sg->len = aic_htole32(1); 1018 sg++; 1019 } 1020 } 1021 sg--; 1022 sg->len |= aic_htole32(AHC_DMA_LAST_SEG); 1023 1024 /* Copy the first SG into the "current" data pointer area */ 1025 scb->hscb->dataptr = scb->sg_list->addr; 1026 scb->hscb->datacnt = scb->sg_list->len; 1027 } else { 1028 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL); 1029 scb->hscb->dataptr = 0; 1030 scb->hscb->datacnt = 0; 1031 } 1032 1033 scb->sg_count = nsegments; 1034 1035 /* 1036 * Last time we need to check if this SCB needs to 1037 * be aborted. 1038 */ 1039 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1040 if (nsegments != 0) 1041 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 1042 ahc_free_scb(ahc, scb); 1043 xpt_done(ccb); 1044 return; 1045 } 1046 1047 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid), 1048 SCSIID_OUR_ID(scb->hscb->scsiid), 1049 SCSIID_TARGET(ahc, scb->hscb->scsiid), 1050 &tstate); 1051 1052 mask = SCB_GET_TARGET_MASK(ahc, scb); 1053 scb->hscb->scsirate = tinfo->scsirate; 1054 scb->hscb->scsioffset = tinfo->curr.offset; 1055 if ((tstate->ultraenb & mask) != 0) 1056 scb->hscb->control |= ULTRAENB; 1057 1058 if ((tstate->discenable & mask) != 0 1059 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1060 scb->hscb->control |= DISCENB; 1061 1062 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1063 && (tinfo->goal.width != 0 1064 || tinfo->goal.offset != 0 1065 || tinfo->goal.ppr_options != 0)) { 1066 scb->flags |= SCB_NEGOTIATE; 1067 scb->hscb->control |= MK_MESSAGE; 1068 } else if ((tstate->auto_negotiate & mask) != 0) { 1069 scb->flags |= SCB_AUTO_NEGOTIATE; 1070 scb->hscb->control |= MK_MESSAGE; 1071 } 1072 1073 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); 1074 1075 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1076 1077 /* 1078 * We only allow one untagged transaction 1079 * per target in the initiator role unless 1080 * we are storing a full busy target *lun* 1081 * table in SCB space. 1082 */ 1083 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 1084 && (ahc->flags & AHC_SCB_BTT) == 0) { 1085 struct scb_tailq *untagged_q; 1086 int target_offset; 1087 1088 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 1089 untagged_q = &(ahc->untagged_queues[target_offset]); 1090 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); 1091 scb->flags |= SCB_UNTAGGEDQ; 1092 if (TAILQ_FIRST(untagged_q) != scb) { 1093 return; 1094 } 1095 } 1096 scb->flags |= SCB_ACTIVE; 1097 1098 /* 1099 * Timers are disabled while recovery is in progress. 1100 */ 1101 aic_scb_timer_start(scb); 1102 1103 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1104 /* Define a mapping from our tag to the SCB. */ 1105 ahc->scb_data->scbindex[scb->hscb->tag] = scb; 1106 ahc_pause(ahc); 1107 if ((ahc->flags & AHC_PAGESCBS) == 0) 1108 ahc_outb(ahc, SCBPTR, scb->hscb->tag); 1109 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag); 1110 ahc_unpause(ahc); 1111 } else { 1112 ahc_queue_scb(ahc, scb); 1113 } 1114 } 1115 1116 static void 1117 ahc_poll(struct cam_sim *sim) 1118 { 1119 struct ahc_softc *ahc; 1120 1121 ahc = (struct ahc_softc *)cam_sim_softc(sim); 1122 ahc_intr(ahc); 1123 } 1124 1125 static void 1126 ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 1127 struct ccb_scsiio *csio, struct scb *scb) 1128 { 1129 struct hardware_scb *hscb; 1130 struct ccb_hdr *ccb_h; 1131 int error; 1132 1133 hscb = scb->hscb; 1134 ccb_h = &csio->ccb_h; 1135 1136 csio->resid = 0; 1137 csio->sense_resid = 0; 1138 if (ccb_h->func_code == XPT_SCSI_IO) { 1139 hscb->cdb_len = csio->cdb_len; 1140 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1141 if (hscb->cdb_len > sizeof(hscb->cdb32) 1142 || (ccb_h->flags & CAM_CDB_PHYS) != 0) { 1143 aic_set_transaction_status(scb, 1144 CAM_REQ_INVALID); 1145 ahc_free_scb(ahc, scb); 1146 xpt_done((union ccb *)csio); 1147 return; 1148 } 1149 if (hscb->cdb_len > 12) { 1150 memcpy(hscb->cdb32, 1151 csio->cdb_io.cdb_ptr, 1152 hscb->cdb_len); 1153 scb->flags |= SCB_CDB32_PTR; 1154 } else { 1155 memcpy(hscb->shared_data.cdb, 1156 csio->cdb_io.cdb_ptr, 1157 hscb->cdb_len); 1158 } 1159 } else { 1160 if (hscb->cdb_len > 12) { 1161 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes, 1162 hscb->cdb_len); 1163 scb->flags |= SCB_CDB32_PTR; 1164 } else { 1165 memcpy(hscb->shared_data.cdb, 1166 csio->cdb_io.cdb_bytes, 1167 hscb->cdb_len); 1168 } 1169 } 1170 } 1171 1172 error = bus_dmamap_load_ccb(ahc->buffer_dmat, 1173 scb->dmamap, 1174 (union ccb *)csio, 1175 ahc_execute_scb, 1176 scb, 1177 0); 1178 if (error == EINPROGRESS) { 1179 /* 1180 * So as to maintain ordering, 1181 * freeze the controller queue 1182 * until our mapping is 1183 * returned. 1184 */ 1185 xpt_freeze_simq(sim, /*count*/1); 1186 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; 1187 } 1188 } 1189 1190 static void 1191 ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb) 1192 { 1193 union ccb *abort_ccb; 1194 1195 abort_ccb = ccb->cab.abort_ccb; 1196 switch (abort_ccb->ccb_h.func_code) { 1197 case XPT_ACCEPT_TARGET_IO: 1198 case XPT_IMMEDIATE_NOTIFY: 1199 case XPT_CONT_TARGET_IO: 1200 { 1201 struct ahc_tmode_tstate *tstate; 1202 struct ahc_tmode_lstate *lstate; 1203 struct ccb_hdr_slist *list; 1204 cam_status status; 1205 1206 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate, 1207 &lstate, TRUE); 1208 1209 if (status != CAM_REQ_CMP) { 1210 ccb->ccb_h.status = status; 1211 break; 1212 } 1213 1214 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1215 list = &lstate->accept_tios; 1216 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) 1217 list = &lstate->immed_notifies; 1218 else 1219 list = NULL; 1220 1221 if (list != NULL) { 1222 struct ccb_hdr *curelm; 1223 int found; 1224 1225 curelm = SLIST_FIRST(list); 1226 found = 0; 1227 if (curelm == &abort_ccb->ccb_h) { 1228 found = 1; 1229 SLIST_REMOVE_HEAD(list, sim_links.sle); 1230 } else { 1231 while(curelm != NULL) { 1232 struct ccb_hdr *nextelm; 1233 1234 nextelm = 1235 SLIST_NEXT(curelm, sim_links.sle); 1236 1237 if (nextelm == &abort_ccb->ccb_h) { 1238 found = 1; 1239 SLIST_NEXT(curelm, 1240 sim_links.sle) = 1241 SLIST_NEXT(nextelm, 1242 sim_links.sle); 1243 break; 1244 } 1245 curelm = nextelm; 1246 } 1247 } 1248 1249 if (found) { 1250 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1251 xpt_done(abort_ccb); 1252 ccb->ccb_h.status = CAM_REQ_CMP; 1253 } else { 1254 xpt_print_path(abort_ccb->ccb_h.path); 1255 printf("Not found\n"); 1256 ccb->ccb_h.status = CAM_PATH_INVALID; 1257 } 1258 break; 1259 } 1260 /* FALLTHROUGH */ 1261 } 1262 case XPT_SCSI_IO: 1263 /* XXX Fully implement the hard ones */ 1264 ccb->ccb_h.status = CAM_UA_ABORT; 1265 break; 1266 default: 1267 ccb->ccb_h.status = CAM_REQ_INVALID; 1268 break; 1269 } 1270 xpt_done(ccb); 1271 } 1272 1273 void 1274 ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, 1275 u_int lun, ac_code code, void *opt_arg) 1276 { 1277 struct ccb_trans_settings cts; 1278 struct cam_path *path; 1279 void *arg; 1280 int error; 1281 1282 arg = NULL; 1283 error = ahc_create_path(ahc, channel, target, lun, &path); 1284 1285 if (error != CAM_REQ_CMP) 1286 return; 1287 1288 switch (code) { 1289 case AC_TRANSFER_NEG: 1290 { 1291 struct ccb_trans_settings_scsi *scsi; 1292 1293 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1294 scsi = &cts.proto_specific.scsi; 1295 cts.ccb_h.path = path; 1296 cts.ccb_h.target_id = target; 1297 cts.ccb_h.target_lun = lun; 1298 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id 1299 : ahc->our_id_b, 1300 channel, &cts); 1301 arg = &cts; 1302 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1303 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1304 if (opt_arg == NULL) 1305 break; 1306 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED) 1307 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1308 scsi->valid |= CTS_SCSI_VALID_TQ; 1309 break; 1310 } 1311 case AC_SENT_BDR: 1312 case AC_BUS_RESET: 1313 break; 1314 default: 1315 panic("ahc_send_async: Unexpected async event"); 1316 } 1317 xpt_async(code, path, arg); 1318 xpt_free_path(path); 1319 } 1320 1321 void 1322 ahc_platform_set_tags(struct ahc_softc *ahc, 1323 struct ahc_devinfo *devinfo, int enable) 1324 { 1325 } 1326 1327 int 1328 ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) 1329 { 1330 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, 1331 M_NOWAIT | M_ZERO); 1332 if (ahc->platform_data == NULL) 1333 return (ENOMEM); 1334 return (0); 1335 } 1336 1337 void 1338 ahc_platform_free(struct ahc_softc *ahc) 1339 { 1340 struct ahc_platform_data *pdata; 1341 1342 pdata = ahc->platform_data; 1343 if (pdata != NULL) { 1344 if (pdata->regs != NULL) 1345 bus_release_resource(ahc->dev_softc, 1346 pdata->regs_res_type, 1347 pdata->regs_res_id, 1348 pdata->regs); 1349 1350 if (pdata->irq != NULL) 1351 bus_release_resource(ahc->dev_softc, 1352 pdata->irq_res_type, 1353 0, pdata->irq); 1354 1355 if (pdata->sim_b != NULL) { 1356 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL); 1357 xpt_free_path(pdata->path_b); 1358 xpt_bus_deregister(cam_sim_path(pdata->sim_b)); 1359 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE); 1360 } 1361 if (pdata->sim != NULL) { 1362 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1363 xpt_free_path(pdata->path); 1364 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1365 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1366 } 1367 if (pdata->eh != NULL) 1368 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1369 free(ahc->platform_data, M_DEVBUF); 1370 } 1371 } 1372 1373 int 1374 ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) 1375 { 1376 /* We don't sort softcs under FreeBSD so report equal always */ 1377 return (0); 1378 } 1379 1380 int 1381 ahc_detach(device_t dev) 1382 { 1383 struct ahc_softc *ahc; 1384 1385 device_printf(dev, "detaching device\n"); 1386 ahc = device_get_softc(dev); 1387 ahc_lock(ahc); 1388 TAILQ_REMOVE(&ahc_tailq, ahc, links); 1389 ahc_intr_enable(ahc, FALSE); 1390 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih); 1391 ahc_unlock(ahc); 1392 ahc_free(ahc); 1393 return (0); 1394 } 1395 1396 #if 0 1397 static void 1398 ahc_dump_targcmd(struct target_cmd *cmd) 1399 { 1400 uint8_t *byte; 1401 uint8_t *last_byte; 1402 int i; 1403 1404 byte = &cmd->initiator_channel; 1405 /* Debugging info for received commands */ 1406 last_byte = &cmd[1].initiator_channel; 1407 1408 i = 0; 1409 while (byte < last_byte) { 1410 if (i == 0) 1411 printf("\t"); 1412 printf("%#x", *byte++); 1413 i++; 1414 if (i == 8) { 1415 printf("\n"); 1416 i = 0; 1417 } else { 1418 printf(", "); 1419 } 1420 } 1421 } 1422 #endif 1423 1424 static int 1425 ahc_modevent(module_t mod, int type, void *data) 1426 { 1427 /* XXX Deal with busy status on unload. */ 1428 /* XXX Deal with unknown events */ 1429 return 0; 1430 } 1431 1432 static moduledata_t ahc_mod = { 1433 "ahc", 1434 ahc_modevent, 1435 NULL 1436 }; 1437 1438 DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1439 MODULE_DEPEND(ahc, cam, 1, 1, 1); 1440 MODULE_VERSION(ahc, 1);
Cache object: 94f5dfc7e5051762363524f837c36070
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]