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; 319 320 /* 321 * Copy only the sense data into the provided buffer. 322 */ 323 siu = (struct scsi_status_iu_header *)scb->sense_data; 324 sense_len = MIN(scsi_4btoul(siu->sense_length), 325 sizeof(ccb->csio.sense_data)); 326 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 327 memcpy(&ccb->csio.sense_data, 328 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu), 329 sense_len); 330 #ifdef AHD_DEBUG 331 if ((ahd_debug & AHD_SHOW_SENSE) != 0) { 332 uint8_t *sense_data = (uint8_t *)&ccb->csio.sense_data; 333 u_int i; 334 335 printf("Copied %d bytes of sense data offset %d:", 336 sense_len, SIU_SENSE_OFFSET(siu)); 337 for (i = 0; i < sense_len; i++) 338 printf(" 0x%x", *sense_data++); 339 printf("\n"); 340 } 341 #endif 342 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 343 } 344 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 345 ahd_free_scb(ahd, scb); 346 xpt_done(ccb); 347 } 348 349 static void 350 ahd_action(struct cam_sim *sim, union ccb *ccb) 351 { 352 struct ahd_softc *ahd; 353 #ifdef AHD_TARGET_MODE 354 struct ahd_tmode_lstate *lstate; 355 #endif 356 u_int target_id; 357 u_int our_id; 358 359 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n")); 360 361 ahd = (struct ahd_softc *)cam_sim_softc(sim); 362 363 target_id = ccb->ccb_h.target_id; 364 our_id = SIM_SCSI_ID(ahd, sim); 365 366 switch (ccb->ccb_h.func_code) { 367 /* Common cases first */ 368 #ifdef AHD_TARGET_MODE 369 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 370 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 371 { 372 struct ahd_tmode_tstate *tstate; 373 cam_status status; 374 375 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 376 &lstate, TRUE); 377 378 if (status != CAM_REQ_CMP) { 379 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 380 /* Response from the black hole device */ 381 tstate = NULL; 382 lstate = ahd->black_hole; 383 } else { 384 ccb->ccb_h.status = status; 385 xpt_done(ccb); 386 break; 387 } 388 } 389 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 390 391 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 392 sim_links.sle); 393 ccb->ccb_h.status = CAM_REQ_INPROG; 394 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0) 395 ahd_run_tqinfifo(ahd, /*paused*/FALSE); 396 break; 397 } 398 399 /* 400 * The target_id represents the target we attempt to 401 * select. In target mode, this is the initiator of 402 * the original command. 403 */ 404 our_id = target_id; 405 target_id = ccb->csio.init_id; 406 /* FALLTHROUGH */ 407 } 408 #endif 409 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 410 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 411 { 412 struct scb *scb; 413 struct hardware_scb *hscb; 414 struct ahd_initiator_tinfo *tinfo; 415 struct ahd_tmode_tstate *tstate; 416 u_int col_idx; 417 418 if ((ahd->flags & AHD_INITIATORROLE) == 0 419 && (ccb->ccb_h.func_code == XPT_SCSI_IO 420 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 421 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 422 xpt_done(ccb); 423 return; 424 } 425 426 /* 427 * get an scb to use. 428 */ 429 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, 430 target_id, &tstate); 431 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0 432 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0 433 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 434 col_idx = AHD_NEVER_COL_IDX; 435 } else { 436 col_idx = AHD_BUILD_COL_IDX(target_id, 437 ccb->ccb_h.target_lun); 438 } 439 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 440 441 xpt_freeze_simq(sim, /*count*/1); 442 ahd->flags |= AHD_RESOURCE_SHORTAGE; 443 ccb->ccb_h.status = CAM_REQUEUE_REQ; 444 xpt_done(ccb); 445 return; 446 } 447 448 hscb = scb->hscb; 449 450 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 451 ("start scb(%p)\n", scb)); 452 scb->io_ctx = ccb; 453 /* 454 * So we can find the SCB when an abort is requested 455 */ 456 ccb->ccb_h.ccb_scb_ptr = scb; 457 458 /* 459 * Put all the arguments for the xfer in the scb 460 */ 461 hscb->control = 0; 462 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 463 hscb->lun = ccb->ccb_h.target_lun; 464 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 465 hscb->cdb_len = 0; 466 scb->flags |= SCB_DEVICE_RESET; 467 hscb->control |= MK_MESSAGE; 468 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 469 ahd_execute_scb(scb, NULL, 0, 0); 470 } else { 471 #ifdef AHD_TARGET_MODE 472 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 473 struct target_data *tdata; 474 475 tdata = &hscb->shared_data.tdata; 476 if (ahd->pending_device == lstate) 477 scb->flags |= SCB_TARGET_IMMEDIATE; 478 hscb->control |= TARGET_SCB; 479 tdata->target_phases = 0; 480 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 481 tdata->target_phases |= SPHASE_PENDING; 482 tdata->scsi_status = 483 ccb->csio.scsi_status; 484 } 485 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 486 tdata->target_phases |= NO_DISCONNECT; 487 488 tdata->initiator_tag = 489 ahd_htole16(ccb->csio.tag_id); 490 } 491 #endif 492 hscb->task_management = 0; 493 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 494 hscb->control |= ccb->csio.tag_action; 495 496 ahd_setup_data(ahd, sim, &ccb->csio, scb); 497 } 498 break; 499 } 500 #ifdef AHD_TARGET_MODE 501 case XPT_NOTIFY_ACK: 502 case XPT_IMMED_NOTIFY: 503 { 504 struct ahd_tmode_tstate *tstate; 505 struct ahd_tmode_lstate *lstate; 506 cam_status status; 507 508 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 509 &lstate, TRUE); 510 511 if (status != CAM_REQ_CMP) { 512 ccb->ccb_h.status = status; 513 xpt_done(ccb); 514 break; 515 } 516 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 517 sim_links.sle); 518 ccb->ccb_h.status = CAM_REQ_INPROG; 519 ahd_send_lstate_events(ahd, lstate); 520 break; 521 } 522 case XPT_EN_LUN: /* Enable LUN as a target */ 523 ahd_handle_en_lun(ahd, sim, ccb); 524 xpt_done(ccb); 525 break; 526 #endif 527 case XPT_ABORT: /* Abort the specified CCB */ 528 { 529 ahd_abort_ccb(ahd, sim, ccb); 530 break; 531 } 532 case XPT_SET_TRAN_SETTINGS: 533 { 534 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 535 SIM_CHANNEL(ahd, sim), &ccb->cts); 536 xpt_done(ccb); 537 break; 538 } 539 case XPT_GET_TRAN_SETTINGS: 540 /* Get default/user set transfer settings for the target */ 541 { 542 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 543 SIM_CHANNEL(ahd, sim), &ccb->cts); 544 xpt_done(ccb); 545 break; 546 } 547 case XPT_CALC_GEOMETRY: 548 { 549 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A); 550 xpt_done(ccb); 551 break; 552 } 553 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 554 { 555 int found; 556 557 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 558 /*initiate reset*/TRUE); 559 if (bootverbose) { 560 xpt_print_path(SIM_PATH(ahd, sim)); 561 printf("SCSI bus reset delivered. " 562 "%d SCBs aborted.\n", found); 563 } 564 ccb->ccb_h.status = CAM_REQ_CMP; 565 xpt_done(ccb); 566 break; 567 } 568 case XPT_TERM_IO: /* Terminate the I/O process */ 569 /* XXX Implement */ 570 ccb->ccb_h.status = CAM_REQ_INVALID; 571 xpt_done(ccb); 572 break; 573 case XPT_PATH_INQ: /* Path routing inquiry */ 574 { 575 struct ccb_pathinq *cpi = &ccb->cpi; 576 577 cpi->version_num = 1; /* XXX??? */ 578 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 579 if ((ahd->features & AHD_WIDE) != 0) 580 cpi->hba_inquiry |= PI_WIDE_16; 581 if ((ahd->features & AHD_TARGETMODE) != 0) { 582 cpi->target_sprt = PIT_PROCESSOR 583 | PIT_DISCONNECT 584 | PIT_TERM_IO; 585 } else { 586 cpi->target_sprt = 0; 587 } 588 cpi->hba_misc = 0; 589 cpi->hba_eng_cnt = 0; 590 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7; 591 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1; 592 cpi->initiator_id = ahd->our_id; 593 if ((ahd->flags & AHD_RESET_BUS_A) == 0) { 594 cpi->hba_misc |= PIM_NOBUSRESET; 595 } 596 cpi->bus_id = cam_sim_bus(sim); 597 cpi->base_transfer_speed = 3300; 598 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 599 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 600 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 601 cpi->unit_number = cam_sim_unit(sim); 602 cpi->protocol = PROTO_SCSI; 603 cpi->protocol_version = SCSI_REV_2; 604 cpi->transport = XPORT_SPI; 605 cpi->transport_version = 4; 606 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST 607 | SID_SPI_IUS 608 | SID_SPI_QAS; 609 cpi->ccb_h.status = CAM_REQ_CMP; 610 xpt_done(ccb); 611 break; 612 } 613 default: 614 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 615 xpt_done(ccb); 616 break; 617 } 618 } 619 620 621 static void 622 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 623 struct ccb_trans_settings *cts) 624 { 625 struct ahd_devinfo devinfo; 626 struct ccb_trans_settings_scsi *scsi; 627 struct ccb_trans_settings_spi *spi; 628 struct ahd_initiator_tinfo *tinfo; 629 struct ahd_tmode_tstate *tstate; 630 uint16_t *discenable; 631 uint16_t *tagenable; 632 u_int update_type; 633 634 scsi = &cts->proto_specific.scsi; 635 spi = &cts->xport_specific.spi; 636 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 637 cts->ccb_h.target_id, 638 cts->ccb_h.target_lun, 639 SIM_CHANNEL(ahd, sim), 640 ROLE_UNKNOWN); 641 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 642 devinfo.our_scsiid, 643 devinfo.target, &tstate); 644 update_type = 0; 645 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 646 update_type |= AHD_TRANS_GOAL; 647 discenable = &tstate->discenable; 648 tagenable = &tstate->tagenable; 649 tinfo->curr.protocol_version = cts->protocol_version; 650 tinfo->curr.transport_version = cts->transport_version; 651 tinfo->goal.protocol_version = cts->protocol_version; 652 tinfo->goal.transport_version = cts->transport_version; 653 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 654 update_type |= AHD_TRANS_USER; 655 discenable = &ahd->user_discenable; 656 tagenable = &ahd->user_tagenable; 657 tinfo->user.protocol_version = cts->protocol_version; 658 tinfo->user.transport_version = cts->transport_version; 659 } else { 660 cts->ccb_h.status = CAM_REQ_INVALID; 661 return; 662 } 663 664 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 665 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 666 *discenable |= devinfo.target_mask; 667 else 668 *discenable &= ~devinfo.target_mask; 669 } 670 671 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 672 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 673 *tagenable |= devinfo.target_mask; 674 else 675 *tagenable &= ~devinfo.target_mask; 676 } 677 678 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 679 ahd_validate_width(ahd, /*tinfo limit*/NULL, 680 &spi->bus_width, ROLE_UNKNOWN); 681 ahd_set_width(ahd, &devinfo, spi->bus_width, 682 update_type, /*paused*/FALSE); 683 } 684 685 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 686 if (update_type == AHD_TRANS_USER) 687 spi->ppr_options = tinfo->user.ppr_options; 688 else 689 spi->ppr_options = tinfo->goal.ppr_options; 690 } 691 692 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 693 if (update_type == AHD_TRANS_USER) 694 spi->sync_offset = tinfo->user.offset; 695 else 696 spi->sync_offset = tinfo->goal.offset; 697 } 698 699 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 700 if (update_type == AHD_TRANS_USER) 701 spi->sync_period = tinfo->user.period; 702 else 703 spi->sync_period = tinfo->goal.period; 704 } 705 706 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 707 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 708 u_int maxsync; 709 710 maxsync = AHD_SYNCRATE_MAX; 711 712 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 713 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 714 715 if ((*discenable & devinfo.target_mask) == 0) 716 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 717 718 ahd_find_syncrate(ahd, &spi->sync_period, 719 &spi->ppr_options, maxsync); 720 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 721 spi->sync_period, &spi->sync_offset, 722 spi->bus_width, ROLE_UNKNOWN); 723 724 /* We use a period of 0 to represent async */ 725 if (spi->sync_offset == 0) { 726 spi->sync_period = 0; 727 spi->ppr_options = 0; 728 } 729 730 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 731 spi->sync_offset, spi->ppr_options, 732 update_type, /*paused*/FALSE); 733 } 734 cts->ccb_h.status = CAM_REQ_CMP; 735 } 736 737 static void 738 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 739 struct ccb_trans_settings *cts) 740 { 741 struct ahd_devinfo devinfo; 742 struct ccb_trans_settings_scsi *scsi; 743 struct ccb_trans_settings_spi *spi; 744 struct ahd_initiator_tinfo *targ_info; 745 struct ahd_tmode_tstate *tstate; 746 struct ahd_transinfo *tinfo; 747 748 scsi = &cts->proto_specific.scsi; 749 spi = &cts->xport_specific.spi; 750 ahd_compile_devinfo(&devinfo, our_id, 751 cts->ccb_h.target_id, 752 cts->ccb_h.target_lun, 753 channel, ROLE_UNKNOWN); 754 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 755 devinfo.our_scsiid, 756 devinfo.target, &tstate); 757 758 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 759 tinfo = &targ_info->curr; 760 else 761 tinfo = &targ_info->user; 762 763 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 764 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 765 if (cts->type == CTS_TYPE_USER_SETTINGS) { 766 if ((ahd->user_discenable & devinfo.target_mask) != 0) 767 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 768 769 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 770 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 771 } else { 772 if ((tstate->discenable & devinfo.target_mask) != 0) 773 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 774 775 if ((tstate->tagenable & devinfo.target_mask) != 0) 776 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 777 } 778 cts->protocol_version = tinfo->protocol_version; 779 cts->transport_version = tinfo->transport_version; 780 781 spi->sync_period = tinfo->period; 782 spi->sync_offset = tinfo->offset; 783 spi->bus_width = tinfo->width; 784 spi->ppr_options = tinfo->ppr_options; 785 786 cts->protocol = PROTO_SCSI; 787 cts->transport = XPORT_SPI; 788 spi->valid = CTS_SPI_VALID_SYNC_RATE 789 | CTS_SPI_VALID_SYNC_OFFSET 790 | CTS_SPI_VALID_BUS_WIDTH 791 | CTS_SPI_VALID_PPR_OPTIONS; 792 793 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 794 scsi->valid = CTS_SCSI_VALID_TQ; 795 spi->valid |= CTS_SPI_VALID_DISC; 796 } else { 797 scsi->valid = 0; 798 } 799 800 cts->ccb_h.status = CAM_REQ_CMP; 801 } 802 803 static void 804 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 805 { 806 struct ahd_softc *ahd; 807 struct cam_sim *sim; 808 809 sim = (struct cam_sim *)callback_arg; 810 ahd = (struct ahd_softc *)cam_sim_softc(sim); 811 switch (code) { 812 case AC_LOST_DEVICE: 813 { 814 struct ahd_devinfo devinfo; 815 816 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 817 xpt_path_target_id(path), 818 xpt_path_lun_id(path), 819 SIM_CHANNEL(ahd, sim), 820 ROLE_UNKNOWN); 821 822 /* 823 * Revert to async/narrow transfers 824 * for the next device. 825 */ 826 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 827 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 828 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 829 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 830 /*paused*/FALSE); 831 break; 832 } 833 default: 834 break; 835 } 836 } 837 838 static void 839 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 840 int error) 841 { 842 struct scb *scb; 843 union ccb *ccb; 844 struct ahd_softc *ahd; 845 struct ahd_initiator_tinfo *tinfo; 846 struct ahd_tmode_tstate *tstate; 847 u_int mask; 848 849 scb = (struct scb *)arg; 850 ccb = scb->io_ctx; 851 ahd = scb->ahd_softc; 852 853 if (error != 0) { 854 if (error == EFBIG) 855 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 856 else 857 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 858 if (nsegments != 0) 859 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 860 ahd_free_scb(ahd, scb); 861 xpt_done(ccb); 862 return; 863 } 864 scb->sg_count = 0; 865 if (nsegments != 0) { 866 void *sg; 867 bus_dmasync_op_t op; 868 u_int i; 869 870 /* Copy the segments into our SG list */ 871 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 872 873 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 874 dm_segs->ds_len, 875 /*last*/i == 1); 876 dm_segs++; 877 } 878 879 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 880 op = BUS_DMASYNC_PREREAD; 881 else 882 op = BUS_DMASYNC_PREWRITE; 883 884 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 885 886 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 887 struct target_data *tdata; 888 889 tdata = &scb->hscb->shared_data.tdata; 890 tdata->target_phases |= DPHASE_PENDING; 891 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 892 tdata->data_phase = P_DATAOUT; 893 else 894 tdata->data_phase = P_DATAIN; 895 } 896 } 897 898 /* 899 * Last time we need to check if this SCB needs to 900 * be aborted. 901 */ 902 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 903 if (nsegments != 0) 904 bus_dmamap_unload(ahd->buffer_dmat, 905 scb->dmamap); 906 ahd_free_scb(ahd, scb); 907 xpt_done(ccb); 908 return; 909 } 910 911 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 912 SCSIID_OUR_ID(scb->hscb->scsiid), 913 SCSIID_TARGET(ahd, scb->hscb->scsiid), 914 &tstate); 915 916 mask = SCB_GET_TARGET_MASK(ahd, scb); 917 918 if ((tstate->discenable & mask) != 0 919 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 920 scb->hscb->control |= DISCENB; 921 922 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 923 scb->flags |= SCB_PACKETIZED; 924 if (scb->hscb->task_management != 0) 925 scb->hscb->control &= ~MK_MESSAGE; 926 } 927 928 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 929 && (tinfo->goal.width != 0 930 || tinfo->goal.period != 0 931 || tinfo->goal.ppr_options != 0)) { 932 scb->flags |= SCB_NEGOTIATE; 933 scb->hscb->control |= MK_MESSAGE; 934 } else if ((tstate->auto_negotiate & mask) != 0) { 935 scb->flags |= SCB_AUTO_NEGOTIATE; 936 scb->hscb->control |= MK_MESSAGE; 937 } 938 939 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 940 941 ccb->ccb_h.status |= CAM_SIM_QUEUED; 942 943 aic_scb_timer_start(scb); 944 945 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 946 /* Define a mapping from our tag to the SCB. */ 947 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 948 ahd_pause(ahd); 949 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 950 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 951 ahd_unpause(ahd); 952 } else { 953 ahd_queue_scb(ahd, scb); 954 } 955 956 } 957 958 static void 959 ahd_poll(struct cam_sim *sim) 960 { 961 ahd_intr(cam_sim_softc(sim)); 962 } 963 964 static void 965 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 966 struct ccb_scsiio *csio, struct scb *scb) 967 { 968 struct hardware_scb *hscb; 969 struct ccb_hdr *ccb_h; 970 971 hscb = scb->hscb; 972 ccb_h = &csio->ccb_h; 973 974 csio->resid = 0; 975 csio->sense_resid = 0; 976 if (ccb_h->func_code == XPT_SCSI_IO) { 977 hscb->cdb_len = csio->cdb_len; 978 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 979 980 if (hscb->cdb_len > MAX_CDB_LEN 981 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 982 983 /* 984 * Should CAM start to support CDB sizes 985 * greater than 16 bytes, we could use 986 * the sense buffer to store the CDB. 987 */ 988 aic_set_transaction_status(scb, 989 CAM_REQ_INVALID); 990 ahd_free_scb(ahd, scb); 991 xpt_done((union ccb *)csio); 992 return; 993 } 994 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 995 hscb->shared_data.idata.cdb_from_host.cdbptr = 996 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 997 hscb->shared_data.idata.cdb_from_host.cdblen = 998 csio->cdb_len; 999 hscb->cdb_len |= SCB_CDB_LEN_PTR; 1000 } else { 1001 memcpy(hscb->shared_data.idata.cdb, 1002 csio->cdb_io.cdb_ptr, 1003 hscb->cdb_len); 1004 } 1005 } else { 1006 if (hscb->cdb_len > MAX_CDB_LEN) { 1007 1008 aic_set_transaction_status(scb, 1009 CAM_REQ_INVALID); 1010 ahd_free_scb(ahd, scb); 1011 xpt_done((union ccb *)csio); 1012 return; 1013 } 1014 memcpy(hscb->shared_data.idata.cdb, 1015 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1016 } 1017 } 1018 1019 /* Only use S/G if there is a transfer */ 1020 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1021 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1022 /* We've been given a pointer to a single buffer */ 1023 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1024 int s; 1025 int error; 1026 1027 s = splsoftvm(); 1028 error = bus_dmamap_load(ahd->buffer_dmat, 1029 scb->dmamap, 1030 csio->data_ptr, 1031 csio->dxfer_len, 1032 ahd_execute_scb, 1033 scb, /*flags*/0); 1034 if (error == EINPROGRESS) { 1035 /* 1036 * So as to maintain ordering, 1037 * freeze the controller queue 1038 * until our mapping is 1039 * returned. 1040 */ 1041 xpt_freeze_simq(sim, 1042 /*count*/1); 1043 scb->io_ctx->ccb_h.status |= 1044 CAM_RELEASE_SIMQ; 1045 } 1046 splx(s); 1047 } else { 1048 struct bus_dma_segment seg; 1049 1050 /* Pointer to physical buffer */ 1051 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE) 1052 panic("ahd_setup_data - Transfer size " 1053 "larger than can device max"); 1054 1055 seg.ds_addr = 1056 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1057 seg.ds_len = csio->dxfer_len; 1058 ahd_execute_scb(scb, &seg, 1, 0); 1059 } 1060 } else { 1061 struct bus_dma_segment *segs; 1062 1063 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1064 panic("ahd_setup_data - Physical segment " 1065 "pointers unsupported"); 1066 1067 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1068 panic("ahd_setup_data - Virtual segment " 1069 "addresses unsupported"); 1070 1071 /* Just use the segments provided */ 1072 segs = (struct bus_dma_segment *)csio->data_ptr; 1073 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0); 1074 } 1075 } else { 1076 ahd_execute_scb(scb, NULL, 0, 0); 1077 } 1078 } 1079 1080 static void 1081 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1082 { 1083 union ccb *abort_ccb; 1084 1085 abort_ccb = ccb->cab.abort_ccb; 1086 switch (abort_ccb->ccb_h.func_code) { 1087 #ifdef AHD_TARGET_MODE 1088 case XPT_ACCEPT_TARGET_IO: 1089 case XPT_IMMED_NOTIFY: 1090 case XPT_CONT_TARGET_IO: 1091 { 1092 struct ahd_tmode_tstate *tstate; 1093 struct ahd_tmode_lstate *lstate; 1094 struct ccb_hdr_slist *list; 1095 cam_status status; 1096 1097 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1098 &lstate, TRUE); 1099 1100 if (status != CAM_REQ_CMP) { 1101 ccb->ccb_h.status = status; 1102 break; 1103 } 1104 1105 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1106 list = &lstate->accept_tios; 1107 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1108 list = &lstate->immed_notifies; 1109 else 1110 list = NULL; 1111 1112 if (list != NULL) { 1113 struct ccb_hdr *curelm; 1114 int found; 1115 1116 curelm = SLIST_FIRST(list); 1117 found = 0; 1118 if (curelm == &abort_ccb->ccb_h) { 1119 found = 1; 1120 SLIST_REMOVE_HEAD(list, sim_links.sle); 1121 } else { 1122 while(curelm != NULL) { 1123 struct ccb_hdr *nextelm; 1124 1125 nextelm = 1126 SLIST_NEXT(curelm, sim_links.sle); 1127 1128 if (nextelm == &abort_ccb->ccb_h) { 1129 found = 1; 1130 SLIST_NEXT(curelm, 1131 sim_links.sle) = 1132 SLIST_NEXT(nextelm, 1133 sim_links.sle); 1134 break; 1135 } 1136 curelm = nextelm; 1137 } 1138 } 1139 1140 if (found) { 1141 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1142 xpt_done(abort_ccb); 1143 ccb->ccb_h.status = CAM_REQ_CMP; 1144 } else { 1145 xpt_print_path(abort_ccb->ccb_h.path); 1146 printf("Not found\n"); 1147 ccb->ccb_h.status = CAM_PATH_INVALID; 1148 } 1149 break; 1150 } 1151 /* FALLTHROUGH */ 1152 } 1153 #endif 1154 case XPT_SCSI_IO: 1155 /* XXX Fully implement the hard ones */ 1156 ccb->ccb_h.status = CAM_UA_ABORT; 1157 break; 1158 default: 1159 ccb->ccb_h.status = CAM_REQ_INVALID; 1160 break; 1161 } 1162 xpt_done(ccb); 1163 } 1164 1165 void 1166 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1167 u_int lun, ac_code code, void *opt_arg) 1168 { 1169 struct ccb_trans_settings cts; 1170 struct cam_path *path; 1171 void *arg; 1172 int error; 1173 1174 arg = NULL; 1175 error = ahd_create_path(ahd, channel, target, lun, &path); 1176 1177 if (error != CAM_REQ_CMP) 1178 return; 1179 1180 switch (code) { 1181 case AC_TRANSFER_NEG: 1182 { 1183 struct ccb_trans_settings_scsi *scsi; 1184 1185 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1186 scsi = &cts.proto_specific.scsi; 1187 cts.ccb_h.path = path; 1188 cts.ccb_h.target_id = target; 1189 cts.ccb_h.target_lun = lun; 1190 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1191 arg = &cts; 1192 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1193 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1194 if (opt_arg == NULL) 1195 break; 1196 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1197 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1198 scsi->valid |= CTS_SCSI_VALID_TQ; 1199 break; 1200 } 1201 case AC_SENT_BDR: 1202 case AC_BUS_RESET: 1203 break; 1204 default: 1205 panic("ahd_send_async: Unexpected async event"); 1206 } 1207 xpt_async(code, path, arg); 1208 xpt_free_path(path); 1209 } 1210 1211 void 1212 ahd_platform_set_tags(struct ahd_softc *ahd, 1213 struct ahd_devinfo *devinfo, int enable) 1214 { 1215 } 1216 1217 int 1218 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1219 { 1220 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1221 M_NOWAIT | M_ZERO); 1222 if (ahd->platform_data == NULL) 1223 return (ENOMEM); 1224 return (0); 1225 } 1226 1227 void 1228 ahd_platform_free(struct ahd_softc *ahd) 1229 { 1230 struct ahd_platform_data *pdata; 1231 1232 pdata = ahd->platform_data; 1233 if (pdata != NULL) { 1234 if (pdata->regs[0] != NULL) 1235 bus_release_resource(ahd->dev_softc, 1236 pdata->regs_res_type[0], 1237 pdata->regs_res_id[0], 1238 pdata->regs[0]); 1239 1240 if (pdata->regs[1] != NULL) 1241 bus_release_resource(ahd->dev_softc, 1242 pdata->regs_res_type[1], 1243 pdata->regs_res_id[1], 1244 pdata->regs[1]); 1245 1246 if (pdata->irq != NULL) 1247 bus_release_resource(ahd->dev_softc, 1248 pdata->irq_res_type, 1249 0, pdata->irq); 1250 1251 if (pdata->sim != NULL) { 1252 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1253 xpt_free_path(pdata->path); 1254 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1255 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1256 } 1257 if (pdata->eh != NULL) 1258 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1259 free(ahd->platform_data, M_DEVBUF); 1260 } 1261 } 1262 1263 int 1264 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1265 { 1266 /* We don't sort softcs under FreeBSD so report equal always */ 1267 return (0); 1268 } 1269 1270 int 1271 ahd_detach(device_t dev) 1272 { 1273 struct ahd_softc *ahd; 1274 1275 device_printf(dev, "detaching device\n"); 1276 ahd = device_get_softc(dev); 1277 ahd_lock(ahd); 1278 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1279 ahd_intr_enable(ahd, FALSE); 1280 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1281 ahd_unlock(ahd); 1282 ahd_free(ahd); 1283 return (0); 1284 } 1285 1286 #if 0 1287 static void 1288 ahd_dump_targcmd(struct target_cmd *cmd) 1289 { 1290 uint8_t *byte; 1291 uint8_t *last_byte; 1292 int i; 1293 1294 byte = &cmd->initiator_channel; 1295 /* Debugging info for received commands */ 1296 last_byte = &cmd[1].initiator_channel; 1297 1298 i = 0; 1299 while (byte < last_byte) { 1300 if (i == 0) 1301 printf("\t"); 1302 printf("%#x", *byte++); 1303 i++; 1304 if (i == 8) { 1305 printf("\n"); 1306 i = 0; 1307 } else { 1308 printf(", "); 1309 } 1310 } 1311 } 1312 #endif 1313 1314 static int 1315 ahd_modevent(module_t mod, int type, void *data) 1316 { 1317 /* XXX Deal with busy status on unload. */ 1318 /* XXX Deal with unknown events */ 1319 return 0; 1320 } 1321 1322 static moduledata_t ahd_mod = { 1323 "ahd", 1324 ahd_modevent, 1325 NULL 1326 }; 1327 1328 /********************************** DDB Hooks *********************************/ 1329 #ifdef DDB 1330 static struct ahd_softc *ahd_ddb_softc; 1331 static int ahd_ddb_paused; 1332 static int ahd_ddb_paused_on_entry; 1333 DB_COMMAND(ahd_sunit, ahd_ddb_sunit) 1334 { 1335 struct ahd_softc *list_ahd; 1336 1337 ahd_ddb_softc = NULL; 1338 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1339 if (list_ahd->unit == addr) 1340 ahd_ddb_softc = list_ahd; 1341 } 1342 if (ahd_ddb_softc == NULL) 1343 db_error("No matching softc found!\n"); 1344 } 1345 1346 DB_COMMAND(ahd_pause, ahd_ddb_pause) 1347 { 1348 if (ahd_ddb_softc == NULL) { 1349 db_error("Must set unit with ahd_sunit first!\n"); 1350 return; 1351 } 1352 if (ahd_ddb_paused == 0) { 1353 ahd_ddb_paused++; 1354 if (ahd_is_paused(ahd_ddb_softc)) { 1355 ahd_ddb_paused_on_entry++; 1356 return; 1357 } 1358 ahd_pause(ahd_ddb_softc); 1359 } 1360 } 1361 1362 DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1363 { 1364 if (ahd_ddb_softc == NULL) { 1365 db_error("Must set unit with ahd_sunit first!\n"); 1366 return; 1367 } 1368 if (ahd_ddb_paused != 0) { 1369 ahd_ddb_paused = 0; 1370 if (ahd_ddb_paused_on_entry) 1371 return; 1372 ahd_unpause(ahd_ddb_softc); 1373 } else if (ahd_ddb_paused_on_entry != 0) { 1374 /* Two unpauses to clear a paused on entry. */ 1375 ahd_ddb_paused_on_entry = 0; 1376 ahd_unpause(ahd_ddb_softc); 1377 } 1378 } 1379 1380 DB_COMMAND(ahd_in, ahd_ddb_in) 1381 { 1382 int c; 1383 int size; 1384 1385 if (ahd_ddb_softc == NULL) { 1386 db_error("Must set unit with ahd_sunit first!\n"); 1387 return; 1388 } 1389 if (have_addr == 0) 1390 return; 1391 1392 size = 1; 1393 while ((c = *modif++) != '\0') { 1394 switch (c) { 1395 case 'b': 1396 size = 1; 1397 break; 1398 case 'w': 1399 size = 2; 1400 break; 1401 case 'l': 1402 size = 4; 1403 break; 1404 } 1405 } 1406 1407 if (count <= 0) 1408 count = 1; 1409 while (--count >= 0) { 1410 db_printf("%04lx (M)%x: \t", (u_long)addr, 1411 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1412 switch (size) { 1413 case 1: 1414 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1415 break; 1416 case 2: 1417 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1418 break; 1419 case 4: 1420 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1421 break; 1422 } 1423 } 1424 } 1425 1426 DB_FUNC(ahd_out, ahd_ddb_out, db_cmd_table, CS_MORE, NULL) 1427 { 1428 db_expr_t old_value; 1429 db_expr_t new_value; 1430 int size; 1431 1432 if (ahd_ddb_softc == NULL) { 1433 db_error("Must set unit with ahd_sunit first!\n"); 1434 return; 1435 } 1436 1437 switch (modif[0]) { 1438 case '\0': 1439 case 'b': 1440 size = 1; 1441 break; 1442 case 'h': 1443 size = 2; 1444 break; 1445 case 'l': 1446 size = 4; 1447 break; 1448 default: 1449 db_error("Unknown size\n"); 1450 return; 1451 } 1452 1453 while (db_expression(&new_value)) { 1454 switch (size) { 1455 default: 1456 case 1: 1457 old_value = ahd_inb(ahd_ddb_softc, addr); 1458 ahd_outb(ahd_ddb_softc, addr, new_value); 1459 break; 1460 case 2: 1461 old_value = ahd_inw(ahd_ddb_softc, addr); 1462 ahd_outw(ahd_ddb_softc, addr, new_value); 1463 break; 1464 case 4: 1465 old_value = ahd_inl(ahd_ddb_softc, addr); 1466 ahd_outl(ahd_ddb_softc, addr, new_value); 1467 break; 1468 } 1469 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1470 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1471 (u_long)old_value, (u_long)new_value); 1472 addr += size; 1473 } 1474 db_skip_to_eol(); 1475 } 1476 1477 DB_COMMAND(ahd_dump, ahd_ddb_dump) 1478 { 1479 if (ahd_ddb_softc == NULL) { 1480 db_error("Must set unit with ahd_sunit first!\n"); 1481 return; 1482 } 1483 ahd_dump_card_state(ahd_ddb_softc); 1484 } 1485 1486 #endif 1487 1488 1489 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1490 MODULE_DEPEND(ahd, cam, 1, 1, 1); 1491 MODULE_VERSION(ahd, 1); 1492