1 /*- 2 * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers 3 * 4 * Copyright (c) 1994-2002, 2004 Justin T. Gibbs. 5 * Copyright (c) 2001-2002 Adaptec Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * Alternatively, this software may be distributed under the terms of the 18 * GNU Public License ("GPL"). 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#35 $ 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 #include <dev/aic7xxx/aic79xx_osm.h> 39 #include <dev/aic7xxx/aic79xx_inline.h> 40 41 #include <sys/kthread.h> 42 43 #include "opt_ddb.h" 44 #ifdef DDB 45 #include <ddb/ddb.h> 46 #endif 47 48 #ifndef AHD_TMODE_ENABLE 49 #define AHD_TMODE_ENABLE 0 50 #endif 51 52 #include <dev/aic7xxx/aic_osm_lib.c> 53 54 #define ccb_scb_ptr spriv_ptr0 55 56 #if 0 57 static void ahd_dump_targcmd(struct target_cmd *cmd); 58 #endif 59 static int ahd_modevent(module_t mod, int type, void *data); 60 static void ahd_action(struct cam_sim *sim, union ccb *ccb); 61 static void ahd_set_tran_settings(struct ahd_softc *ahd, 62 int our_id, char channel, 63 struct ccb_trans_settings *cts); 64 static void ahd_get_tran_settings(struct ahd_softc *ahd, 65 int our_id, char channel, 66 struct ccb_trans_settings *cts); 67 static void ahd_async(void *callback_arg, uint32_t code, 68 struct cam_path *path, void *arg); 69 static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 70 int nsegments, int error); 71 static void ahd_poll(struct cam_sim *sim); 72 static void ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 73 struct ccb_scsiio *csio, struct scb *scb); 74 static void ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, 75 union ccb *ccb); 76 static int ahd_create_path(struct ahd_softc *ahd, 77 char channel, u_int target, u_int lun, 78 struct cam_path **path); 79 80 static int 81 ahd_create_path(struct ahd_softc *ahd, char channel, u_int target, 82 u_int lun, struct cam_path **path) 83 { 84 path_id_t path_id; 85 86 path_id = cam_sim_path(ahd->platform_data->sim); 87 return (xpt_create_path(path, /*periph*/NULL, 88 path_id, target, lun)); 89 } 90 91 int 92 ahd_map_int(struct ahd_softc *ahd) 93 { 94 int error; 95 96 /* Hook up our interrupt handler */ 97 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq, 98 INTR_TYPE_CAM|INTR_MPSAFE, NULL, 99 ahd_platform_intr, ahd, &ahd->platform_data->ih); 100 if (error != 0) 101 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n", 102 error); 103 return (error); 104 } 105 106 /* 107 * Attach all the sub-devices we can find 108 */ 109 int 110 ahd_attach(struct ahd_softc *ahd) 111 { 112 char ahd_info[256]; 113 struct ccb_setasync csa; 114 struct cam_devq *devq; 115 struct cam_sim *sim; 116 struct cam_path *path; 117 int count; 118 119 count = 0; 120 devq = NULL; 121 sim = NULL; 122 123 /* 124 * Create a thread to perform all recovery. 125 */ 126 if (ahd_spawn_recovery_thread(ahd) != 0) 127 goto fail; 128 129 ahd_controller_info(ahd, ahd_info); 130 printf("%s\n", ahd_info); 131 ahd_lock(ahd); 132 133 /* 134 * Create the device queue for our SIM(s). 135 */ 136 devq = cam_simq_alloc(AHD_MAX_QUEUE); 137 if (devq == NULL) 138 goto fail; 139 140 /* 141 * Construct our SIM entry 142 */ 143 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd, 144 device_get_unit(ahd->dev_softc), 145 &ahd->platform_data->mtx, 1, /*XXX*/256, devq); 146 if (sim == NULL) { 147 cam_simq_free(devq); 148 goto fail; 149 } 150 151 if (xpt_bus_register(sim, ahd->dev_softc, /*bus_id*/0) != CAM_SUCCESS) { 152 cam_sim_free(sim, /*free_devq*/TRUE); 153 sim = NULL; 154 goto fail; 155 } 156 157 if (xpt_create_path(&path, /*periph*/NULL, 158 cam_sim_path(sim), CAM_TARGET_WILDCARD, 159 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 160 xpt_bus_deregister(cam_sim_path(sim)); 161 cam_sim_free(sim, /*free_devq*/TRUE); 162 sim = NULL; 163 goto fail; 164 } 165 166 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 167 csa.ccb_h.func_code = XPT_SASYNC_CB; 168 csa.event_enable = AC_LOST_DEVICE; 169 csa.callback = ahd_async; 170 csa.callback_arg = sim; 171 xpt_action((union ccb *)&csa); 172 count++; 173 174 fail: 175 ahd->platform_data->sim = sim; 176 ahd->platform_data->path = path; 177 ahd_unlock(ahd); 178 if (count != 0) { 179 /* We have to wait until after any system dumps... */ 180 ahd->platform_data->eh = 181 EVENTHANDLER_REGISTER(shutdown_final, ahd_shutdown, 182 ahd, SHUTDOWN_PRI_DEFAULT); 183 ahd_intr_enable(ahd, TRUE); 184 } 185 186 187 return (count); 188 } 189 190 /* 191 * Catch an interrupt from the adapter 192 */ 193 void 194 ahd_platform_intr(void *arg) 195 { 196 struct ahd_softc *ahd; 197 198 ahd = (struct ahd_softc *)arg; 199 ahd_lock(ahd); 200 ahd_intr(ahd); 201 ahd_unlock(ahd); 202 } 203 204 /* 205 * We have an scb which has been processed by the 206 * adaptor, now we look to see how the operation 207 * went. 208 */ 209 void 210 ahd_done(struct ahd_softc *ahd, struct scb *scb) 211 { 212 union ccb *ccb; 213 214 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 215 ("ahd_done - scb %d\n", SCB_GET_TAG(scb))); 216 217 ccb = scb->io_ctx; 218 LIST_REMOVE(scb, pending_links); 219 if ((scb->flags & SCB_TIMEDOUT) != 0) 220 LIST_REMOVE(scb, timedout_links); 221 222 callout_stop(&scb->io_timer); 223 224 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 225 bus_dmasync_op_t op; 226 227 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 228 op = BUS_DMASYNC_POSTREAD; 229 else 230 op = BUS_DMASYNC_POSTWRITE; 231 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 232 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 233 } 234 235 #ifdef AHD_TARGET_MODE 236 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 237 struct cam_path *ccb_path; 238 239 /* 240 * If we have finally disconnected, clean up our 241 * pending device state. 242 * XXX - There may be error states that cause where 243 * we will remain connected. 244 */ 245 ccb_path = ccb->ccb_h.path; 246 if (ahd->pending_device != NULL 247 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) { 248 249 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 250 ahd->pending_device = NULL; 251 } else { 252 xpt_print_path(ccb->ccb_h.path); 253 printf("Still disconnected\n"); 254 ahd_freeze_ccb(ccb); 255 } 256 } 257 258 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 259 ccb->ccb_h.status |= CAM_REQ_CMP; 260 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 261 ahd_free_scb(ahd, scb); 262 xpt_done(ccb); 263 return; 264 } 265 #endif 266 267 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 268 struct scb *list_scb; 269 270 ahd->scb_data.recovery_scbs--; 271 272 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 273 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 274 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 275 276 if (ahd->scb_data.recovery_scbs == 0) { 277 /* 278 * All recovery actions have completed successfully, 279 * so reinstate the timeouts for all other pending 280 * commands. 281 */ 282 LIST_FOREACH(list_scb, 283 &ahd->pending_scbs, pending_links) { 284 285 aic_scb_timer_reset(list_scb, 286 aic_get_timeout(scb)); 287 } 288 289 ahd_print_path(ahd, scb); 290 printf("no longer in timeout, status = %x\n", 291 ccb->ccb_h.status); 292 } 293 } 294 295 /* Don't clobber any existing error state */ 296 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 297 ccb->ccb_h.status |= CAM_REQ_CMP; 298 } else if ((scb->flags & SCB_SENSE) != 0) { 299 /* 300 * We performed autosense retrieval. 301 * 302 * Zero any sense not transferred by the 303 * device. The SCSI spec mandates that any 304 * untransfered data should be assumed to be 305 * zero. Complete the 'bounce' of sense information 306 * through buffers accessible via bus-space by 307 * copying it into the clients csio. 308 */ 309 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 310 memcpy(&ccb->csio.sense_data, 311 ahd_get_sense_buf(ahd, scb), 312 /* XXX What size do we want to use??? */ 313 sizeof(ccb->csio.sense_data) 314 - ccb->csio.sense_resid); 315 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 316 } else if ((scb->flags & SCB_PKT_SENSE) != 0) { 317 struct scsi_status_iu_header *siu; 318 u_int sense_len; 319 int i; 320 321 /* 322 * Copy only the sense data into the provided buffer. 323 */ 324 siu = (struct scsi_status_iu_header *)scb->sense_data; 325 sense_len = MIN(scsi_4btoul(siu->sense_length), 326 sizeof(ccb->csio.sense_data)); 327 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 328 memcpy(&ccb->csio.sense_data, 329 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu), 330 sense_len); 331 printf("Copied %d bytes of sense data offset %d:", sense_len, 332 SIU_SENSE_OFFSET(siu)); 333 for (i = 0; i < sense_len; i++) 334 printf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]); 335 printf("\n"); 336 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 337 } 338 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 339 ahd_free_scb(ahd, scb); 340 xpt_done(ccb); 341 } 342 343 static void 344 ahd_action(struct cam_sim *sim, union ccb *ccb) 345 { 346 struct ahd_softc *ahd; 347 #ifdef AHD_TARGET_MODE 348 struct ahd_tmode_lstate *lstate; 349 #endif 350 u_int target_id; 351 u_int our_id; 352 353 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n")); 354 355 ahd = (struct ahd_softc *)cam_sim_softc(sim); 356 357 target_id = ccb->ccb_h.target_id; 358 our_id = SIM_SCSI_ID(ahd, sim); 359 360 switch (ccb->ccb_h.func_code) { 361 /* Common cases first */ 362 #ifdef AHD_TARGET_MODE 363 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 364 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 365 { 366 struct ahd_tmode_tstate *tstate; 367 cam_status status; 368 369 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 370 &lstate, TRUE); 371 372 if (status != CAM_REQ_CMP) { 373 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 374 /* Response from the black hole device */ 375 tstate = NULL; 376 lstate = ahd->black_hole; 377 } else { 378 ccb->ccb_h.status = status; 379 xpt_done(ccb); 380 break; 381 } 382 } 383 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 384 385 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 386 sim_links.sle); 387 ccb->ccb_h.status = CAM_REQ_INPROG; 388 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0) 389 ahd_run_tqinfifo(ahd, /*paused*/FALSE); 390 break; 391 } 392 393 /* 394 * The target_id represents the target we attempt to 395 * select. In target mode, this is the initiator of 396 * the original command. 397 */ 398 our_id = target_id; 399 target_id = ccb->csio.init_id; 400 /* FALLTHROUGH */ 401 } 402 #endif 403 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 404 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 405 { 406 struct scb *scb; 407 struct hardware_scb *hscb; 408 struct ahd_initiator_tinfo *tinfo; 409 struct ahd_tmode_tstate *tstate; 410 u_int col_idx; 411 412 if ((ahd->flags & AHD_INITIATORROLE) == 0 413 && (ccb->ccb_h.func_code == XPT_SCSI_IO 414 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 415 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 416 xpt_done(ccb); 417 return; 418 } 419 420 /* 421 * get an scb to use. 422 */ 423 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, 424 target_id, &tstate); 425 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0 426 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0 427 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 428 col_idx = AHD_NEVER_COL_IDX; 429 } else { 430 col_idx = AHD_BUILD_COL_IDX(target_id, 431 ccb->ccb_h.target_lun); 432 } 433 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 434 435 xpt_freeze_simq(sim, /*count*/1); 436 ahd->flags |= AHD_RESOURCE_SHORTAGE; 437 ccb->ccb_h.status = CAM_REQUEUE_REQ; 438 xpt_done(ccb); 439 return; 440 } 441 442 hscb = scb->hscb; 443 444 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 445 ("start scb(%p)\n", scb)); 446 scb->io_ctx = ccb; 447 /* 448 * So we can find the SCB when an abort is requested 449 */ 450 ccb->ccb_h.ccb_scb_ptr = scb; 451 452 /* 453 * Put all the arguments for the xfer in the scb 454 */ 455 hscb->control = 0; 456 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 457 hscb->lun = ccb->ccb_h.target_lun; 458 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 459 hscb->cdb_len = 0; 460 scb->flags |= SCB_DEVICE_RESET; 461 hscb->control |= MK_MESSAGE; 462 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 463 ahd_execute_scb(scb, NULL, 0, 0); 464 } else { 465 #ifdef AHD_TARGET_MODE 466 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 467 struct target_data *tdata; 468 469 tdata = &hscb->shared_data.tdata; 470 if (ahd->pending_device == lstate) 471 scb->flags |= SCB_TARGET_IMMEDIATE; 472 hscb->control |= TARGET_SCB; 473 tdata->target_phases = 0; 474 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 475 tdata->target_phases |= SPHASE_PENDING; 476 tdata->scsi_status = 477 ccb->csio.scsi_status; 478 } 479 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 480 tdata->target_phases |= NO_DISCONNECT; 481 482 tdata->initiator_tag = 483 ahd_htole16(ccb->csio.tag_id); 484 } 485 #endif 486 hscb->task_management = 0; 487 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 488 hscb->control |= ccb->csio.tag_action; 489 490 ahd_setup_data(ahd, sim, &ccb->csio, scb); 491 } 492 break; 493 } 494 #ifdef AHD_TARGET_MODE 495 case XPT_NOTIFY_ACK: 496 case XPT_IMMED_NOTIFY: 497 { 498 struct ahd_tmode_tstate *tstate; 499 struct ahd_tmode_lstate *lstate; 500 cam_status status; 501 502 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 503 &lstate, TRUE); 504 505 if (status != CAM_REQ_CMP) { 506 ccb->ccb_h.status = status; 507 xpt_done(ccb); 508 break; 509 } 510 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 511 sim_links.sle); 512 ccb->ccb_h.status = CAM_REQ_INPROG; 513 ahd_send_lstate_events(ahd, lstate); 514 break; 515 } 516 case XPT_EN_LUN: /* Enable LUN as a target */ 517 ahd_handle_en_lun(ahd, sim, ccb); 518 xpt_done(ccb); 519 break; 520 #endif 521 case XPT_ABORT: /* Abort the specified CCB */ 522 { 523 ahd_abort_ccb(ahd, sim, ccb); 524 break; 525 } 526 case XPT_SET_TRAN_SETTINGS: 527 { 528 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 529 SIM_CHANNEL(ahd, sim), &ccb->cts); 530 xpt_done(ccb); 531 break; 532 } 533 case XPT_GET_TRAN_SETTINGS: 534 /* Get default/user set transfer settings for the target */ 535 { 536 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 537 SIM_CHANNEL(ahd, sim), &ccb->cts); 538 xpt_done(ccb); 539 break; 540 } 541 case XPT_CALC_GEOMETRY: 542 { 543 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A); 544 xpt_done(ccb); 545 break; 546 } 547 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 548 { 549 int found; 550 551 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 552 /*initiate reset*/TRUE); 553 if (bootverbose) { 554 xpt_print_path(SIM_PATH(ahd, sim)); 555 printf("SCSI bus reset delivered. " 556 "%d SCBs aborted.\n", found); 557 } 558 ccb->ccb_h.status = CAM_REQ_CMP; 559 xpt_done(ccb); 560 break; 561 } 562 case XPT_TERM_IO: /* Terminate the I/O process */ 563 /* XXX Implement */ 564 ccb->ccb_h.status = CAM_REQ_INVALID; 565 xpt_done(ccb); 566 break; 567 case XPT_PATH_INQ: /* Path routing inquiry */ 568 { 569 struct ccb_pathinq *cpi = &ccb->cpi; 570 571 cpi->version_num = 1; /* XXX??? */ 572 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 573 if ((ahd->features & AHD_WIDE) != 0) 574 cpi->hba_inquiry |= PI_WIDE_16; 575 if ((ahd->features & AHD_TARGETMODE) != 0) { 576 cpi->target_sprt = PIT_PROCESSOR 577 | PIT_DISCONNECT 578 | PIT_TERM_IO; 579 } else { 580 cpi->target_sprt = 0; 581 } 582 cpi->hba_misc = 0; 583 cpi->hba_eng_cnt = 0; 584 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7; 585 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1; 586 cpi->initiator_id = ahd->our_id; 587 if ((ahd->flags & AHD_RESET_BUS_A) == 0) { 588 cpi->hba_misc |= PIM_NOBUSRESET; 589 } 590 cpi->bus_id = cam_sim_bus(sim); 591 cpi->base_transfer_speed = 3300; 592 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 593 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 594 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 595 cpi->unit_number = cam_sim_unit(sim); 596 cpi->protocol = PROTO_SCSI; 597 cpi->protocol_version = SCSI_REV_2; 598 cpi->transport = XPORT_SPI; 599 cpi->transport_version = 2; 600 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 601 cpi->transport_version = 4; 602 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST; 603 cpi->ccb_h.status = CAM_REQ_CMP; 604 xpt_done(ccb); 605 break; 606 } 607 default: 608 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 609 xpt_done(ccb); 610 break; 611 } 612 } 613 614 615 static void 616 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 617 struct ccb_trans_settings *cts) 618 { 619 struct ahd_devinfo devinfo; 620 struct ccb_trans_settings_scsi *scsi; 621 struct ccb_trans_settings_spi *spi; 622 struct ahd_initiator_tinfo *tinfo; 623 struct ahd_tmode_tstate *tstate; 624 uint16_t *discenable; 625 uint16_t *tagenable; 626 u_int update_type; 627 628 scsi = &cts->proto_specific.scsi; 629 spi = &cts->xport_specific.spi; 630 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 631 cts->ccb_h.target_id, 632 cts->ccb_h.target_lun, 633 SIM_CHANNEL(ahd, sim), 634 ROLE_UNKNOWN); 635 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 636 devinfo.our_scsiid, 637 devinfo.target, &tstate); 638 update_type = 0; 639 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 640 update_type |= AHD_TRANS_GOAL; 641 discenable = &tstate->discenable; 642 tagenable = &tstate->tagenable; 643 tinfo->curr.protocol_version = cts->protocol_version; 644 tinfo->curr.transport_version = cts->transport_version; 645 tinfo->goal.protocol_version = cts->protocol_version; 646 tinfo->goal.transport_version = cts->transport_version; 647 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 648 update_type |= AHD_TRANS_USER; 649 discenable = &ahd->user_discenable; 650 tagenable = &ahd->user_tagenable; 651 tinfo->user.protocol_version = cts->protocol_version; 652 tinfo->user.transport_version = cts->transport_version; 653 } else { 654 cts->ccb_h.status = CAM_REQ_INVALID; 655 return; 656 } 657 658 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 659 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 660 *discenable |= devinfo.target_mask; 661 else 662 *discenable &= ~devinfo.target_mask; 663 } 664 665 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 666 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 667 *tagenable |= devinfo.target_mask; 668 else 669 *tagenable &= ~devinfo.target_mask; 670 } 671 672 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 673 ahd_validate_width(ahd, /*tinfo limit*/NULL, 674 &spi->bus_width, ROLE_UNKNOWN); 675 ahd_set_width(ahd, &devinfo, spi->bus_width, 676 update_type, /*paused*/FALSE); 677 } 678 679 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 680 if (update_type == AHD_TRANS_USER) 681 spi->ppr_options = tinfo->user.ppr_options; 682 else 683 spi->ppr_options = tinfo->goal.ppr_options; 684 } 685 686 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 687 if (update_type == AHD_TRANS_USER) 688 spi->sync_offset = tinfo->user.offset; 689 else 690 spi->sync_offset = tinfo->goal.offset; 691 } 692 693 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 694 if (update_type == AHD_TRANS_USER) 695 spi->sync_period = tinfo->user.period; 696 else 697 spi->sync_period = tinfo->goal.period; 698 } 699 700 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 701 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 702 u_int maxsync; 703 704 maxsync = AHD_SYNCRATE_MAX; 705 706 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 707 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 708 709 if ((*discenable & devinfo.target_mask) == 0) 710 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 711 712 ahd_find_syncrate(ahd, &spi->sync_period, 713 &spi->ppr_options, maxsync); 714 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 715 spi->sync_period, &spi->sync_offset, 716 spi->bus_width, ROLE_UNKNOWN); 717 718 /* We use a period of 0 to represent async */ 719 if (spi->sync_offset == 0) { 720 spi->sync_period = 0; 721 spi->ppr_options = 0; 722 } 723 724 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 725 spi->sync_offset, spi->ppr_options, 726 update_type, /*paused*/FALSE); 727 } 728 cts->ccb_h.status = CAM_REQ_CMP; 729 } 730 731 static void 732 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 733 struct ccb_trans_settings *cts) 734 { 735 struct ahd_devinfo devinfo; 736 struct ccb_trans_settings_scsi *scsi; 737 struct ccb_trans_settings_spi *spi; 738 struct ahd_initiator_tinfo *targ_info; 739 struct ahd_tmode_tstate *tstate; 740 struct ahd_transinfo *tinfo; 741 742 scsi = &cts->proto_specific.scsi; 743 spi = &cts->xport_specific.spi; 744 ahd_compile_devinfo(&devinfo, our_id, 745 cts->ccb_h.target_id, 746 cts->ccb_h.target_lun, 747 channel, ROLE_UNKNOWN); 748 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 749 devinfo.our_scsiid, 750 devinfo.target, &tstate); 751 752 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 753 tinfo = &targ_info->curr; 754 else 755 tinfo = &targ_info->user; 756 757 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 758 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 759 if (cts->type == CTS_TYPE_USER_SETTINGS) { 760 if ((ahd->user_discenable & devinfo.target_mask) != 0) 761 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 762 763 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 764 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 765 } else { 766 if ((tstate->discenable & devinfo.target_mask) != 0) 767 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 768 769 if ((tstate->tagenable & devinfo.target_mask) != 0) 770 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 771 } 772 cts->protocol_version = tinfo->protocol_version; 773 cts->transport_version = tinfo->transport_version; 774 775 spi->sync_period = tinfo->period; 776 spi->sync_offset = tinfo->offset; 777 spi->bus_width = tinfo->width; 778 spi->ppr_options = tinfo->ppr_options; 779 780 cts->protocol = PROTO_SCSI; 781 cts->transport = XPORT_SPI; 782 spi->valid = CTS_SPI_VALID_SYNC_RATE 783 | CTS_SPI_VALID_SYNC_OFFSET 784 | CTS_SPI_VALID_BUS_WIDTH 785 | CTS_SPI_VALID_PPR_OPTIONS; 786 787 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 788 scsi->valid = CTS_SCSI_VALID_TQ; 789 spi->valid |= CTS_SPI_VALID_DISC; 790 } else { 791 scsi->valid = 0; 792 } 793 794 cts->ccb_h.status = CAM_REQ_CMP; 795 } 796 797 static void 798 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 799 { 800 struct ahd_softc *ahd; 801 struct cam_sim *sim; 802 803 sim = (struct cam_sim *)callback_arg; 804 ahd = (struct ahd_softc *)cam_sim_softc(sim); 805 switch (code) { 806 case AC_LOST_DEVICE: 807 { 808 struct ahd_devinfo devinfo; 809 810 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 811 xpt_path_target_id(path), 812 xpt_path_lun_id(path), 813 SIM_CHANNEL(ahd, sim), 814 ROLE_UNKNOWN); 815 816 /* 817 * Revert to async/narrow transfers 818 * for the next device. 819 */ 820 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 821 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 822 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 823 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 824 /*paused*/FALSE); 825 break; 826 } 827 default: 828 break; 829 } 830 } 831 832 static void 833 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 834 int error) 835 { 836 struct scb *scb; 837 union ccb *ccb; 838 struct ahd_softc *ahd; 839 struct ahd_initiator_tinfo *tinfo; 840 struct ahd_tmode_tstate *tstate; 841 u_int mask; 842 843 scb = (struct scb *)arg; 844 ccb = scb->io_ctx; 845 ahd = scb->ahd_softc; 846 847 if (error != 0) { 848 if (error == EFBIG) 849 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 850 else 851 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 852 if (nsegments != 0) 853 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 854 ahd_free_scb(ahd, scb); 855 xpt_done(ccb); 856 return; 857 } 858 scb->sg_count = 0; 859 if (nsegments != 0) { 860 void *sg; 861 bus_dmasync_op_t op; 862 u_int i; 863 864 /* Copy the segments into our SG list */ 865 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 866 867 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 868 dm_segs->ds_len, 869 /*last*/i == 1); 870 dm_segs++; 871 } 872 873 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 874 op = BUS_DMASYNC_PREREAD; 875 else 876 op = BUS_DMASYNC_PREWRITE; 877 878 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 879 880 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 881 struct target_data *tdata; 882 883 tdata = &scb->hscb->shared_data.tdata; 884 tdata->target_phases |= DPHASE_PENDING; 885 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 886 tdata->data_phase = P_DATAOUT; 887 else 888 tdata->data_phase = P_DATAIN; 889 } 890 } 891 892 /* 893 * Last time we need to check if this SCB needs to 894 * be aborted. 895 */ 896 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 897 if (nsegments != 0) 898 bus_dmamap_unload(ahd->buffer_dmat, 899 scb->dmamap); 900 ahd_free_scb(ahd, scb); 901 xpt_done(ccb); 902 return; 903 } 904 905 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 906 SCSIID_OUR_ID(scb->hscb->scsiid), 907 SCSIID_TARGET(ahd, scb->hscb->scsiid), 908 &tstate); 909 910 mask = SCB_GET_TARGET_MASK(ahd, scb); 911 912 if ((tstate->discenable & mask) != 0 913 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 914 scb->hscb->control |= DISCENB; 915 916 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 917 scb->flags |= SCB_PACKETIZED; 918 if (scb->hscb->task_management != 0) 919 scb->hscb->control &= ~MK_MESSAGE; 920 } 921 922 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 923 && (tinfo->goal.width != 0 924 || tinfo->goal.period != 0 925 || tinfo->goal.ppr_options != 0)) { 926 scb->flags |= SCB_NEGOTIATE; 927 scb->hscb->control |= MK_MESSAGE; 928 } else if ((tstate->auto_negotiate & mask) != 0) { 929 scb->flags |= SCB_AUTO_NEGOTIATE; 930 scb->hscb->control |= MK_MESSAGE; 931 } 932 933 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 934 935 ccb->ccb_h.status |= CAM_SIM_QUEUED; 936 937 aic_scb_timer_start(scb); 938 939 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 940 /* Define a mapping from our tag to the SCB. */ 941 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 942 ahd_pause(ahd); 943 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 944 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 945 ahd_unpause(ahd); 946 } else { 947 ahd_queue_scb(ahd, scb); 948 } 949 950 } 951 952 static void 953 ahd_poll(struct cam_sim *sim) 954 { 955 ahd_intr(cam_sim_softc(sim)); 956 } 957 958 static void 959 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 960 struct ccb_scsiio *csio, struct scb *scb) 961 { 962 struct hardware_scb *hscb; 963 struct ccb_hdr *ccb_h; 964 965 hscb = scb->hscb; 966 ccb_h = &csio->ccb_h; 967 968 csio->resid = 0; 969 csio->sense_resid = 0; 970 if (ccb_h->func_code == XPT_SCSI_IO) { 971 hscb->cdb_len = csio->cdb_len; 972 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 973 974 if (hscb->cdb_len > MAX_CDB_LEN 975 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 976 977 /* 978 * Should CAM start to support CDB sizes 979 * greater than 16 bytes, we could use 980 * the sense buffer to store the CDB. 981 */ 982 aic_set_transaction_status(scb, 983 CAM_REQ_INVALID); 984 ahd_free_scb(ahd, scb); 985 xpt_done((union ccb *)csio); 986 return; 987 } 988 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 989 hscb->shared_data.idata.cdb_from_host.cdbptr = 990 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 991 hscb->shared_data.idata.cdb_from_host.cdblen = 992 csio->cdb_len; 993 hscb->cdb_len |= SCB_CDB_LEN_PTR; 994 } else { 995 memcpy(hscb->shared_data.idata.cdb, 996 csio->cdb_io.cdb_ptr, 997 hscb->cdb_len); 998 } 999 } else { 1000 if (hscb->cdb_len > MAX_CDB_LEN) { 1001 1002 aic_set_transaction_status(scb, 1003 CAM_REQ_INVALID); 1004 ahd_free_scb(ahd, scb); 1005 xpt_done((union ccb *)csio); 1006 return; 1007 } 1008 memcpy(hscb->shared_data.idata.cdb, 1009 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1010 } 1011 } 1012 1013 /* Only use S/G if there is a transfer */ 1014 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1015 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1016 /* We've been given a pointer to a single buffer */ 1017 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1018 int s; 1019 int error; 1020 1021 s = splsoftvm(); 1022 error = bus_dmamap_load(ahd->buffer_dmat, 1023 scb->dmamap, 1024 csio->data_ptr, 1025 csio->dxfer_len, 1026 ahd_execute_scb, 1027 scb, /*flags*/0); 1028 if (error == EINPROGRESS) { 1029 /* 1030 * So as to maintain ordering, 1031 * freeze the controller queue 1032 * until our mapping is 1033 * returned. 1034 */ 1035 xpt_freeze_simq(sim, 1036 /*count*/1); 1037 scb->io_ctx->ccb_h.status |= 1038 CAM_RELEASE_SIMQ; 1039 } 1040 splx(s); 1041 } else { 1042 struct bus_dma_segment seg; 1043 1044 /* Pointer to physical buffer */ 1045 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE) 1046 panic("ahd_setup_data - Transfer size " 1047 "larger than can device max"); 1048 1049 seg.ds_addr = 1050 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1051 seg.ds_len = csio->dxfer_len; 1052 ahd_execute_scb(scb, &seg, 1, 0); 1053 } 1054 } else { 1055 struct bus_dma_segment *segs; 1056 1057 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1058 panic("ahd_setup_data - Physical segment " 1059 "pointers unsupported"); 1060 1061 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1062 panic("ahd_setup_data - Virtual segment " 1063 "addresses unsupported"); 1064 1065 /* Just use the segments provided */ 1066 segs = (struct bus_dma_segment *)csio->data_ptr; 1067 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0); 1068 } 1069 } else { 1070 ahd_execute_scb(scb, NULL, 0, 0); 1071 } 1072 } 1073 1074 static void 1075 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1076 { 1077 union ccb *abort_ccb; 1078 1079 abort_ccb = ccb->cab.abort_ccb; 1080 switch (abort_ccb->ccb_h.func_code) { 1081 #ifdef AHD_TARGET_MODE 1082 case XPT_ACCEPT_TARGET_IO: 1083 case XPT_IMMED_NOTIFY: 1084 case XPT_CONT_TARGET_IO: 1085 { 1086 struct ahd_tmode_tstate *tstate; 1087 struct ahd_tmode_lstate *lstate; 1088 struct ccb_hdr_slist *list; 1089 cam_status status; 1090 1091 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1092 &lstate, TRUE); 1093 1094 if (status != CAM_REQ_CMP) { 1095 ccb->ccb_h.status = status; 1096 break; 1097 } 1098 1099 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1100 list = &lstate->accept_tios; 1101 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1102 list = &lstate->immed_notifies; 1103 else 1104 list = NULL; 1105 1106 if (list != NULL) { 1107 struct ccb_hdr *curelm; 1108 int found; 1109 1110 curelm = SLIST_FIRST(list); 1111 found = 0; 1112 if (curelm == &abort_ccb->ccb_h) { 1113 found = 1; 1114 SLIST_REMOVE_HEAD(list, sim_links.sle); 1115 } else { 1116 while(curelm != NULL) { 1117 struct ccb_hdr *nextelm; 1118 1119 nextelm = 1120 SLIST_NEXT(curelm, sim_links.sle); 1121 1122 if (nextelm == &abort_ccb->ccb_h) { 1123 found = 1; 1124 SLIST_NEXT(curelm, 1125 sim_links.sle) = 1126 SLIST_NEXT(nextelm, 1127 sim_links.sle); 1128 break; 1129 } 1130 curelm = nextelm; 1131 } 1132 } 1133 1134 if (found) { 1135 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1136 xpt_done(abort_ccb); 1137 ccb->ccb_h.status = CAM_REQ_CMP; 1138 } else { 1139 xpt_print_path(abort_ccb->ccb_h.path); 1140 printf("Not found\n"); 1141 ccb->ccb_h.status = CAM_PATH_INVALID; 1142 } 1143 break; 1144 } 1145 /* FALLTHROUGH */ 1146 } 1147 #endif 1148 case XPT_SCSI_IO: 1149 /* XXX Fully implement the hard ones */ 1150 ccb->ccb_h.status = CAM_UA_ABORT; 1151 break; 1152 default: 1153 ccb->ccb_h.status = CAM_REQ_INVALID; 1154 break; 1155 } 1156 xpt_done(ccb); 1157 } 1158 1159 void 1160 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1161 u_int lun, ac_code code, void *opt_arg) 1162 { 1163 struct ccb_trans_settings cts; 1164 struct cam_path *path; 1165 void *arg; 1166 int error; 1167 1168 arg = NULL; 1169 error = ahd_create_path(ahd, channel, target, lun, &path); 1170 1171 if (error != CAM_REQ_CMP) 1172 return; 1173 1174 switch (code) { 1175 case AC_TRANSFER_NEG: 1176 { 1177 struct ccb_trans_settings_scsi *scsi; 1178 1179 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1180 scsi = &cts.proto_specific.scsi; 1181 cts.ccb_h.path = path; 1182 cts.ccb_h.target_id = target; 1183 cts.ccb_h.target_lun = lun; 1184 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1185 arg = &cts; 1186 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1187 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1188 if (opt_arg == NULL) 1189 break; 1190 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1191 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1192 scsi->valid |= CTS_SCSI_VALID_TQ; 1193 break; 1194 } 1195 case AC_SENT_BDR: 1196 case AC_BUS_RESET: 1197 break; 1198 default: 1199 panic("ahd_send_async: Unexpected async event"); 1200 } 1201 xpt_async(code, path, arg); 1202 xpt_free_path(path); 1203 } 1204 1205 void 1206 ahd_platform_set_tags(struct ahd_softc *ahd, 1207 struct ahd_devinfo *devinfo, int enable) 1208 { 1209 } 1210 1211 int 1212 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1213 { 1214 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1215 M_NOWAIT | M_ZERO); 1216 if (ahd->platform_data == NULL) 1217 return (ENOMEM); 1218 return (0); 1219 } 1220 1221 void 1222 ahd_platform_free(struct ahd_softc *ahd) 1223 { 1224 struct ahd_platform_data *pdata; 1225 1226 pdata = ahd->platform_data; 1227 if (pdata != NULL) { 1228 if (pdata->regs[0] != NULL) 1229 bus_release_resource(ahd->dev_softc, 1230 pdata->regs_res_type[0], 1231 pdata->regs_res_id[0], 1232 pdata->regs[0]); 1233 1234 if (pdata->regs[1] != NULL) 1235 bus_release_resource(ahd->dev_softc, 1236 pdata->regs_res_type[1], 1237 pdata->regs_res_id[1], 1238 pdata->regs[1]); 1239 1240 if (pdata->irq != NULL) 1241 bus_release_resource(ahd->dev_softc, 1242 pdata->irq_res_type, 1243 0, pdata->irq); 1244 1245 if (pdata->sim != NULL) { 1246 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1247 xpt_free_path(pdata->path); 1248 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1249 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1250 } 1251 if (pdata->eh != NULL) 1252 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1253 free(ahd->platform_data, M_DEVBUF); 1254 } 1255 } 1256 1257 int 1258 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1259 { 1260 /* We don't sort softcs under FreeBSD so report equal always */ 1261 return (0); 1262 } 1263 1264 int 1265 ahd_detach(device_t dev) 1266 { 1267 struct ahd_softc *ahd; 1268 1269 device_printf(dev, "detaching device\n"); 1270 ahd = device_get_softc(dev); 1271 ahd_lock(ahd); 1272 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1273 ahd_intr_enable(ahd, FALSE); 1274 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1275 ahd_unlock(ahd); 1276 ahd_free(ahd); 1277 return (0); 1278 } 1279 1280 #if 0 1281 static void 1282 ahd_dump_targcmd(struct target_cmd *cmd) 1283 { 1284 uint8_t *byte; 1285 uint8_t *last_byte; 1286 int i; 1287 1288 byte = &cmd->initiator_channel; 1289 /* Debugging info for received commands */ 1290 last_byte = &cmd[1].initiator_channel; 1291 1292 i = 0; 1293 while (byte < last_byte) { 1294 if (i == 0) 1295 printf("\t"); 1296 printf("%#x", *byte++); 1297 i++; 1298 if (i == 8) { 1299 printf("\n"); 1300 i = 0; 1301 } else { 1302 printf(", "); 1303 } 1304 } 1305 } 1306 #endif 1307 1308 static int 1309 ahd_modevent(module_t mod, int type, void *data) 1310 { 1311 /* XXX Deal with busy status on unload. */ 1312 /* XXX Deal with unknown events */ 1313 return 0; 1314 } 1315 1316 static moduledata_t ahd_mod = { 1317 "ahd", 1318 ahd_modevent, 1319 NULL 1320 }; 1321 1322 /********************************** DDB Hooks *********************************/ 1323 #ifdef DDB 1324 static struct ahd_softc *ahd_ddb_softc; 1325 static int ahd_ddb_paused; 1326 static int ahd_ddb_paused_on_entry; 1327 DB_COMMAND(ahd_sunit, ahd_ddb_sunit) 1328 { 1329 struct ahd_softc *list_ahd; 1330 1331 ahd_ddb_softc = NULL; 1332 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1333 if (list_ahd->unit == addr) 1334 ahd_ddb_softc = list_ahd; 1335 } 1336 if (ahd_ddb_softc == NULL) 1337 db_error("No matching softc found!\n"); 1338 } 1339 1340 DB_COMMAND(ahd_pause, ahd_ddb_pause) 1341 { 1342 if (ahd_ddb_softc == NULL) { 1343 db_error("Must set unit with ahd_sunit first!\n"); 1344 return; 1345 } 1346 if (ahd_ddb_paused == 0) { 1347 ahd_ddb_paused++; 1348 if (ahd_is_paused(ahd_ddb_softc)) { 1349 ahd_ddb_paused_on_entry++; 1350 return; 1351 } 1352 ahd_pause(ahd_ddb_softc); 1353 } 1354 } 1355 1356 DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1357 { 1358 if (ahd_ddb_softc == NULL) { 1359 db_error("Must set unit with ahd_sunit first!\n"); 1360 return; 1361 } 1362 if (ahd_ddb_paused != 0) { 1363 ahd_ddb_paused = 0; 1364 if (ahd_ddb_paused_on_entry) 1365 return; 1366 ahd_unpause(ahd_ddb_softc); 1367 } else if (ahd_ddb_paused_on_entry != 0) { 1368 /* Two unpauses to clear a paused on entry. */ 1369 ahd_ddb_paused_on_entry = 0; 1370 ahd_unpause(ahd_ddb_softc); 1371 } 1372 } 1373 1374 DB_COMMAND(ahd_in, ahd_ddb_in) 1375 { 1376 int c; 1377 int size; 1378 1379 if (ahd_ddb_softc == NULL) { 1380 db_error("Must set unit with ahd_sunit first!\n"); 1381 return; 1382 } 1383 if (have_addr == 0) 1384 return; 1385 1386 size = 1; 1387 while ((c = *modif++) != '\0') { 1388 switch (c) { 1389 case 'b': 1390 size = 1; 1391 break; 1392 case 'w': 1393 size = 2; 1394 break; 1395 case 'l': 1396 size = 4; 1397 break; 1398 } 1399 } 1400 1401 if (count <= 0) 1402 count = 1; 1403 while (--count >= 0) { 1404 db_printf("%04lx (M)%x: \t", (u_long)addr, 1405 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1406 switch (size) { 1407 case 1: 1408 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1409 break; 1410 case 2: 1411 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1412 break; 1413 case 4: 1414 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1415 break; 1416 } 1417 } 1418 } 1419 1420 DB_FUNC(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) 1421 { 1422 db_expr_t old_value; 1423 db_expr_t new_value; 1424 int size; 1425 1426 if (ahd_ddb_softc == NULL) { 1427 db_error("Must set unit with ahd_sunit first!\n"); 1428 return; 1429 } 1430 1431 switch (modif[0]) { 1432 case '\0': 1433 case 'b': 1434 size = 1; 1435 break; 1436 case 'h': 1437 size = 2; 1438 break; 1439 case 'l': 1440 size = 4; 1441 break; 1442 default: 1443 db_error("Unknown size\n"); 1444 return; 1445 } 1446 1447 while (db_expression(&new_value)) { 1448 switch (size) { 1449 default: 1450 case 1: 1451 old_value = ahd_inb(ahd_ddb_softc, addr); 1452 ahd_outb(ahd_ddb_softc, addr, new_value); 1453 break; 1454 case 2: 1455 old_value = ahd_inw(ahd_ddb_softc, addr); 1456 ahd_outw(ahd_ddb_softc, addr, new_value); 1457 break; 1458 case 4: 1459 old_value = ahd_inl(ahd_ddb_softc, addr); 1460 ahd_outl(ahd_ddb_softc, addr, new_value); 1461 break; 1462 } 1463 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1464 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1465 (u_long)old_value, (u_long)new_value); 1466 addr += size; 1467 } 1468 db_skip_to_eol(); 1469 } 1470 1471 DB_COMMAND(ahd_dump, ahd_ddb_dump) 1472 { 1473 if (ahd_ddb_softc == NULL) { 1474 db_error("Must set unit with ahd_sunit first!\n"); 1475 return; 1476 } 1477 ahd_dump_card_state(ahd_ddb_softc); 1478 } 1479 1480 #endif 1481 1482 1483 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1484 MODULE_DEPEND(ahd, cam, 1, 1, 1); 1485 MODULE_VERSION(ahd, 1); 1486