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: stable/11/sys/dev/aic7xxx/aic79xx_osm.c 315812 2017-03-23 06:40:20Z mav $"); 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 57static void ahd_dump_targcmd(struct target_cmd *cmd); 58#endif 59static int ahd_modevent(module_t mod, int type, void *data); 60static void ahd_action(struct cam_sim *sim, union ccb *ccb); 61static void ahd_set_tran_settings(struct ahd_softc *ahd, 62 int our_id, char channel, 63 struct ccb_trans_settings *cts); 64static void ahd_get_tran_settings(struct ahd_softc *ahd, 65 int our_id, char channel, 66 struct ccb_trans_settings *cts); 67static void ahd_async(void *callback_arg, uint32_t code, 68 struct cam_path *path, void *arg); 69static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 70 int nsegments, int error); 71static void ahd_poll(struct cam_sim *sim); 72static void ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 73 struct ccb_scsiio *csio, struct scb *scb); 74static void ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, 75 union ccb *ccb); 76static int ahd_create_path(struct ahd_softc *ahd, 77 char channel, u_int target, u_int lun, 78 struct cam_path **path); 79 80static const char *ahd_sysctl_node_elements[] = { 81 "root", 82 "summary", 83 "debug" 84}; 85 86#ifndef NO_SYSCTL_DESCR 87static const char *ahd_sysctl_node_descriptions[] = { 88 "root error collection for aic79xx controllers", 89 "summary collection for aic79xx controllers", 90 "debug collection for aic79xx controllers" 91}; 92#endif 93 94static const char *ahd_sysctl_errors_elements[] = { 95 "Cerrors", 96 "Uerrors", 97 "Ferrors" 98}; 99 100#ifndef NO_SYSCTL_DESCR 101static const char *ahd_sysctl_errors_descriptions[] = { 102 "Correctable errors", 103 "Uncorrectable errors", 104 "Fatal errors" 105}; 106#endif 107 108static int 109ahd_set_debugcounters(SYSCTL_HANDLER_ARGS) 110{ 111 struct ahd_softc *sc; 112 int error, tmpv; 113 114 tmpv = 0; 115 sc = arg1; 116 error = sysctl_handle_int(oidp, &tmpv, 0, req); 117 if (error != 0 || req->newptr == NULL) 118 return (error); 119 if (tmpv < 0 || tmpv >= AHD_ERRORS_NUMBER) 120 return (EINVAL); 121 sc->summerr[arg2] = tmpv; 122 return (0); 123} 124 125static int 126ahd_clear_allcounters(SYSCTL_HANDLER_ARGS) 127{ 128 struct ahd_softc *sc; 129 int error, tmpv; 130 131 tmpv = 0; 132 sc = arg1; 133 error = sysctl_handle_int(oidp, &tmpv, 0, req); 134 if (error != 0 || req->newptr == NULL) 135 return (error); 136 if (tmpv != 0) 137 bzero(sc->summerr, sizeof(sc->summerr)); 138 return (0); 139} 140 141static int 142ahd_create_path(struct ahd_softc *ahd, char channel, u_int target, 143 u_int lun, struct cam_path **path) 144{ 145 path_id_t path_id; 146 147 path_id = cam_sim_path(ahd->platform_data->sim); 148 return (xpt_create_path(path, /*periph*/NULL, 149 path_id, target, lun)); 150} 151 152void 153ahd_sysctl(struct ahd_softc *ahd) 154{ 155 u_int i; 156 157 for (i = 0; i < AHD_SYSCTL_NUMBER; i++) 158 sysctl_ctx_init(&ahd->sysctl_ctx[i]); 159 160 ahd->sysctl_tree[AHD_SYSCTL_ROOT] = 161 SYSCTL_ADD_NODE(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT], 162 SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO, 163 device_get_nameunit(ahd->dev_softc), CTLFLAG_RD, 0, 164 ahd_sysctl_node_descriptions[AHD_SYSCTL_ROOT]); 165 SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_ROOT], 166 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]), 167 OID_AUTO, "clear", CTLTYPE_UINT | CTLFLAG_RW, ahd, 168 0, ahd_clear_allcounters, "IU", 169 "Clear all counters"); 170 171 for (i = AHD_SYSCTL_SUMMARY; i < AHD_SYSCTL_NUMBER; i++) 172 ahd->sysctl_tree[i] = 173 SYSCTL_ADD_NODE(&ahd->sysctl_ctx[i], 174 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_ROOT]), 175 OID_AUTO, ahd_sysctl_node_elements[i], 176 CTLFLAG_RD, 0, 177 ahd_sysctl_node_descriptions[i]); 178 179 for (i = AHD_ERRORS_CORRECTABLE; i < AHD_ERRORS_NUMBER; i++) { 180 SYSCTL_ADD_UINT(&ahd->sysctl_ctx[AHD_SYSCTL_SUMMARY], 181 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_SUMMARY]), 182 OID_AUTO, ahd_sysctl_errors_elements[i], 183 CTLFLAG_RD, &ahd->summerr[i], i, 184 ahd_sysctl_errors_descriptions[i]); 185 SYSCTL_ADD_PROC(&ahd->sysctl_ctx[AHD_SYSCTL_DEBUG], 186 SYSCTL_CHILDREN(ahd->sysctl_tree[AHD_SYSCTL_DEBUG]), 187 OID_AUTO, ahd_sysctl_errors_elements[i], 188 CTLFLAG_RW | CTLTYPE_UINT, ahd, i, 189 ahd_set_debugcounters, "IU", 190 ahd_sysctl_errors_descriptions[i]); 191 } 192} 193 194int 195ahd_map_int(struct ahd_softc *ahd) 196{ 197 int error; 198 199 /* Hook up our interrupt handler */ 200 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq, 201 INTR_TYPE_CAM|INTR_MPSAFE, NULL, 202 ahd_platform_intr, ahd, &ahd->platform_data->ih); 203 if (error != 0) 204 device_printf(ahd->dev_softc, "bus_setup_intr() failed: %d\n", 205 error); 206 return (error); 207} 208 209/* 210 * Attach all the sub-devices we can find 211 */ 212int 213ahd_attach(struct ahd_softc *ahd) 214{ 215 char ahd_info[256]; 216 struct ccb_setasync csa; 217 struct cam_devq *devq; 218 struct cam_sim *sim; 219 struct cam_path *path; 220 int count; 221 222 count = 0; 223 devq = NULL; 224 sim = NULL; 225 path = NULL; 226 227 /* 228 * Create a thread to perform all recovery. 229 */ 230 if (ahd_spawn_recovery_thread(ahd) != 0) 231 goto fail; 232 233 ahd_controller_info(ahd, ahd_info); 234 printf("%s\n", ahd_info); 235 ahd_lock(ahd); 236 237 /* 238 * Create the device queue for our SIM(s). 239 */ 240 devq = cam_simq_alloc(AHD_MAX_QUEUE); 241 if (devq == NULL) 242 goto fail; 243 244 /* 245 * Construct our SIM entry 246 */ 247 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd, 248 device_get_unit(ahd->dev_softc), 249 &ahd->platform_data->mtx, 1, /*XXX*/256, devq); 250 if (sim == NULL) { 251 cam_simq_free(devq); 252 goto fail; 253 } 254 255 if (xpt_bus_register(sim, ahd->dev_softc, /*bus_id*/0) != CAM_SUCCESS) { 256 cam_sim_free(sim, /*free_devq*/TRUE); 257 sim = NULL; 258 goto fail; 259 } 260 261 if (xpt_create_path(&path, /*periph*/NULL, 262 cam_sim_path(sim), CAM_TARGET_WILDCARD, 263 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 264 xpt_bus_deregister(cam_sim_path(sim)); 265 cam_sim_free(sim, /*free_devq*/TRUE); 266 sim = NULL; 267 goto fail; 268 } 269 270 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 271 csa.ccb_h.func_code = XPT_SASYNC_CB; 272 csa.event_enable = AC_LOST_DEVICE; 273 csa.callback = ahd_async; 274 csa.callback_arg = sim; 275 xpt_action((union ccb *)&csa); 276 count++; 277 278fail: 279 ahd->platform_data->sim = sim; 280 ahd->platform_data->path = path; 281 ahd_unlock(ahd); 282 if (count != 0) { 283 /* We have to wait until after any system dumps... */ 284 ahd->platform_data->eh = 285 EVENTHANDLER_REGISTER(shutdown_final, ahd_shutdown, 286 ahd, SHUTDOWN_PRI_DEFAULT); 287 ahd_intr_enable(ahd, TRUE); 288 } 289 290 291 return (count); 292} 293 294/* 295 * Catch an interrupt from the adapter 296 */ 297void 298ahd_platform_intr(void *arg) 299{ 300 struct ahd_softc *ahd; 301 302 ahd = (struct ahd_softc *)arg; 303 ahd_lock(ahd); 304 ahd_intr(ahd); 305 ahd_unlock(ahd); 306} 307 308/* 309 * We have an scb which has been processed by the 310 * adaptor, now we look to see how the operation 311 * went. 312 */ 313void 314ahd_done(struct ahd_softc *ahd, struct scb *scb) 315{ 316 union ccb *ccb; 317 318 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 319 ("ahd_done - scb %d\n", SCB_GET_TAG(scb))); 320 321 ccb = scb->io_ctx; 322 LIST_REMOVE(scb, pending_links); 323 if ((scb->flags & SCB_TIMEDOUT) != 0) 324 LIST_REMOVE(scb, timedout_links); 325 326 callout_stop(&scb->io_timer); 327 328 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 329 bus_dmasync_op_t op; 330 331 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 332 op = BUS_DMASYNC_POSTREAD; 333 else 334 op = BUS_DMASYNC_POSTWRITE; 335 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 336 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 337 } 338 339#ifdef AHD_TARGET_MODE 340 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 341 struct cam_path *ccb_path; 342 343 /* 344 * If we have finally disconnected, clean up our 345 * pending device state. 346 * XXX - There may be error states that cause where 347 * we will remain connected. 348 */ 349 ccb_path = ccb->ccb_h.path; 350 if (ahd->pending_device != NULL 351 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) { 352 353 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 354 ahd->pending_device = NULL; 355 } else { 356 xpt_print_path(ccb->ccb_h.path); 357 printf("Still disconnected\n"); 358 ahd_freeze_ccb(ccb); 359 } 360 } 361 362 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 363 ccb->ccb_h.status |= CAM_REQ_CMP; 364 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 365 ahd_free_scb(ahd, scb); 366 xpt_done(ccb); 367 return; 368 } 369#endif 370 371 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 372 struct scb *list_scb; 373 374 ahd->scb_data.recovery_scbs--; 375 376 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 377 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 378 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 379 380 if (ahd->scb_data.recovery_scbs == 0) { 381 /* 382 * All recovery actions have completed successfully, 383 * so reinstate the timeouts for all other pending 384 * commands. 385 */ 386 LIST_FOREACH(list_scb, 387 &ahd->pending_scbs, pending_links) { 388 389 aic_scb_timer_reset(list_scb, 390 aic_get_timeout(scb)); 391 } 392 393 ahd_print_path(ahd, scb); 394 printf("no longer in timeout, status = %x\n", 395 ccb->ccb_h.status); 396 } 397 } 398 399 /* Don't clobber any existing error state */ 400 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 401 ccb->ccb_h.status |= CAM_REQ_CMP; 402 } else if ((scb->flags & SCB_SENSE) != 0) { 403 /* 404 * We performed autosense retrieval. 405 * 406 * Zero any sense not transferred by the 407 * device. The SCSI spec mandates that any 408 * untransfered data should be assumed to be 409 * zero. Complete the 'bounce' of sense information 410 * through buffers accessible via bus-space by 411 * copying it into the clients csio. 412 */ 413 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 414 memcpy(&ccb->csio.sense_data, 415 ahd_get_sense_buf(ahd, scb), 416/* XXX What size do we want to use??? */ 417 sizeof(ccb->csio.sense_data) 418 - ccb->csio.sense_resid); 419 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 420 } else if ((scb->flags & SCB_PKT_SENSE) != 0) { 421 struct scsi_status_iu_header *siu; 422 u_int sense_len; 423 424 /* 425 * Copy only the sense data into the provided buffer. 426 */ 427 siu = (struct scsi_status_iu_header *)scb->sense_data; 428 sense_len = MIN(scsi_4btoul(siu->sense_length), 429 sizeof(ccb->csio.sense_data)); 430 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 431 memcpy(&ccb->csio.sense_data, 432 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu), 433 sense_len); 434#ifdef AHD_DEBUG 435 if ((ahd_debug & AHD_SHOW_SENSE) != 0) { 436 uint8_t *sense_data = (uint8_t *)&ccb->csio.sense_data; 437 u_int i; 438 439 printf("Copied %d bytes of sense data offset %d:", 440 sense_len, SIU_SENSE_OFFSET(siu)); 441 for (i = 0; i < sense_len; i++) 442 printf(" 0x%x", *sense_data++); 443 printf("\n"); 444 } 445#endif 446 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 447 } 448 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 449 ahd_free_scb(ahd, scb); 450 xpt_done(ccb); 451} 452 453static void 454ahd_action(struct cam_sim *sim, union ccb *ccb) 455{ 456 struct ahd_softc *ahd; 457#ifdef AHD_TARGET_MODE 458 struct ahd_tmode_lstate *lstate; 459#endif 460 u_int target_id; 461 u_int our_id; 462 463 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n")); 464 465 ahd = (struct ahd_softc *)cam_sim_softc(sim); 466 467 target_id = ccb->ccb_h.target_id; 468 our_id = SIM_SCSI_ID(ahd, sim); 469 470 switch (ccb->ccb_h.func_code) { 471 /* Common cases first */ 472#ifdef AHD_TARGET_MODE 473 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 474 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 475 { 476 struct ahd_tmode_tstate *tstate; 477 cam_status status; 478 479 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 480 &lstate, TRUE); 481 482 if (status != CAM_REQ_CMP) { 483 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 484 /* Response from the black hole device */ 485 tstate = NULL; 486 lstate = ahd->black_hole; 487 } else { 488 ccb->ccb_h.status = status; 489 xpt_done(ccb); 490 break; 491 } 492 } 493 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 494 495 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 496 sim_links.sle); 497 ccb->ccb_h.status = CAM_REQ_INPROG; 498 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0) 499 ahd_run_tqinfifo(ahd, /*paused*/FALSE); 500 break; 501 } 502 503 /* 504 * The target_id represents the target we attempt to 505 * select. In target mode, this is the initiator of 506 * the original command. 507 */ 508 our_id = target_id; 509 target_id = ccb->csio.init_id; 510 /* FALLTHROUGH */ 511 } 512#endif 513 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 514 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 515 { 516 struct scb *scb; 517 struct hardware_scb *hscb; 518 struct ahd_initiator_tinfo *tinfo; 519 struct ahd_tmode_tstate *tstate; 520 u_int col_idx; 521 522 if ((ahd->flags & AHD_INITIATORROLE) == 0 523 && (ccb->ccb_h.func_code == XPT_SCSI_IO 524 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 525 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 526 xpt_done(ccb); 527 return; 528 } 529 530 /* 531 * get an scb to use. 532 */ 533 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, 534 target_id, &tstate); 535 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0 536 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0 537 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 538 col_idx = AHD_NEVER_COL_IDX; 539 } else { 540 col_idx = AHD_BUILD_COL_IDX(target_id, 541 ccb->ccb_h.target_lun); 542 } 543 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 544 545 xpt_freeze_simq(sim, /*count*/1); 546 ahd->flags |= AHD_RESOURCE_SHORTAGE; 547 ccb->ccb_h.status = CAM_REQUEUE_REQ; 548 xpt_done(ccb); 549 return; 550 } 551 552 hscb = scb->hscb; 553 554 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 555 ("start scb(%p)\n", scb)); 556 scb->io_ctx = ccb; 557 /* 558 * So we can find the SCB when an abort is requested 559 */ 560 ccb->ccb_h.ccb_scb_ptr = scb; 561 562 /* 563 * Put all the arguments for the xfer in the scb 564 */ 565 hscb->control = 0; 566 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 567 hscb->lun = ccb->ccb_h.target_lun; 568 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 569 hscb->cdb_len = 0; 570 scb->flags |= SCB_DEVICE_RESET; 571 hscb->control |= MK_MESSAGE; 572 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 573 ahd_execute_scb(scb, NULL, 0, 0); 574 } else { 575#ifdef AHD_TARGET_MODE 576 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 577 struct target_data *tdata; 578 579 tdata = &hscb->shared_data.tdata; 580 if (ahd->pending_device == lstate) 581 scb->flags |= SCB_TARGET_IMMEDIATE; 582 hscb->control |= TARGET_SCB; 583 tdata->target_phases = 0; 584 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 585 tdata->target_phases |= SPHASE_PENDING; 586 tdata->scsi_status = 587 ccb->csio.scsi_status; 588 } 589 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 590 tdata->target_phases |= NO_DISCONNECT; 591 592 tdata->initiator_tag = 593 ahd_htole16(ccb->csio.tag_id); 594 } 595#endif 596 hscb->task_management = 0; 597 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 598 hscb->control |= ccb->csio.tag_action; 599 600 ahd_setup_data(ahd, sim, &ccb->csio, scb); 601 } 602 break; 603 } 604#ifdef AHD_TARGET_MODE 605 case XPT_NOTIFY_ACKNOWLEDGE: 606 case XPT_IMMEDIATE_NOTIFY: 607 { 608 struct ahd_tmode_tstate *tstate; 609 struct ahd_tmode_lstate *lstate; 610 cam_status status; 611 612 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 613 &lstate, TRUE); 614 615 if (status != CAM_REQ_CMP) { 616 ccb->ccb_h.status = status; 617 xpt_done(ccb); 618 break; 619 } 620 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 621 sim_links.sle); 622 ccb->ccb_h.status = CAM_REQ_INPROG; 623 ahd_send_lstate_events(ahd, lstate); 624 break; 625 } 626 case XPT_EN_LUN: /* Enable LUN as a target */ 627 ahd_handle_en_lun(ahd, sim, ccb); 628 xpt_done(ccb); 629 break; 630#endif 631 case XPT_ABORT: /* Abort the specified CCB */ 632 { 633 ahd_abort_ccb(ahd, sim, ccb); 634 break; 635 } 636 case XPT_SET_TRAN_SETTINGS: 637 { 638 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 639 SIM_CHANNEL(ahd, sim), &ccb->cts); 640 xpt_done(ccb); 641 break; 642 } 643 case XPT_GET_TRAN_SETTINGS: 644 /* Get default/user set transfer settings for the target */ 645 { 646 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 647 SIM_CHANNEL(ahd, sim), &ccb->cts); 648 xpt_done(ccb); 649 break; 650 } 651 case XPT_CALC_GEOMETRY: 652 { 653 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A); 654 xpt_done(ccb); 655 break; 656 } 657 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 658 { 659 int found; 660 661 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 662 /*initiate reset*/TRUE); 663 if (bootverbose) { 664 xpt_print_path(SIM_PATH(ahd, sim)); 665 printf("SCSI bus reset delivered. " 666 "%d SCBs aborted.\n", found); 667 } 668 ccb->ccb_h.status = CAM_REQ_CMP; 669 xpt_done(ccb); 670 break; 671 } 672 case XPT_TERM_IO: /* Terminate the I/O process */ 673 /* XXX Implement */ 674 ccb->ccb_h.status = CAM_REQ_INVALID; 675 xpt_done(ccb); 676 break; 677 case XPT_PATH_INQ: /* Path routing inquiry */ 678 { 679 struct ccb_pathinq *cpi = &ccb->cpi; 680 681 cpi->version_num = 1; /* XXX??? */ 682 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 683 if ((ahd->features & AHD_WIDE) != 0) 684 cpi->hba_inquiry |= PI_WIDE_16; 685 if ((ahd->features & AHD_TARGETMODE) != 0) { 686 cpi->target_sprt = PIT_PROCESSOR 687 | PIT_DISCONNECT 688 | PIT_TERM_IO; 689 } else { 690 cpi->target_sprt = 0; 691 } 692 cpi->hba_misc = 0; 693 cpi->hba_eng_cnt = 0; 694 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7; 695 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1; 696 cpi->initiator_id = ahd->our_id; 697 if ((ahd->flags & AHD_RESET_BUS_A) == 0) { 698 cpi->hba_misc |= PIM_NOBUSRESET; 699 } 700 cpi->bus_id = cam_sim_bus(sim); 701 cpi->base_transfer_speed = 3300; 702 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 703 strlcpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 704 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 705 cpi->unit_number = cam_sim_unit(sim); 706 cpi->protocol = PROTO_SCSI; 707 cpi->protocol_version = SCSI_REV_2; 708 cpi->transport = XPORT_SPI; 709 cpi->transport_version = 4; 710 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST 711 | SID_SPI_IUS 712 | SID_SPI_QAS; 713 cpi->ccb_h.status = CAM_REQ_CMP; 714 xpt_done(ccb); 715 break; 716 } 717 default: 718 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 719 xpt_done(ccb); 720 break; 721 } 722} 723 724 725static void 726ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 727 struct ccb_trans_settings *cts) 728{ 729 struct ahd_devinfo devinfo; 730 struct ccb_trans_settings_scsi *scsi; 731 struct ccb_trans_settings_spi *spi; 732 struct ahd_initiator_tinfo *tinfo; 733 struct ahd_tmode_tstate *tstate; 734 uint16_t *discenable; 735 uint16_t *tagenable; 736 u_int update_type; 737 738 scsi = &cts->proto_specific.scsi; 739 spi = &cts->xport_specific.spi; 740 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 741 cts->ccb_h.target_id, 742 cts->ccb_h.target_lun, 743 SIM_CHANNEL(ahd, sim), 744 ROLE_UNKNOWN); 745 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 746 devinfo.our_scsiid, 747 devinfo.target, &tstate); 748 update_type = 0; 749 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 750 update_type |= AHD_TRANS_GOAL; 751 discenable = &tstate->discenable; 752 tagenable = &tstate->tagenable; 753 tinfo->curr.protocol_version = cts->protocol_version; 754 tinfo->curr.transport_version = cts->transport_version; 755 tinfo->goal.protocol_version = cts->protocol_version; 756 tinfo->goal.transport_version = cts->transport_version; 757 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 758 update_type |= AHD_TRANS_USER; 759 discenable = &ahd->user_discenable; 760 tagenable = &ahd->user_tagenable; 761 tinfo->user.protocol_version = cts->protocol_version; 762 tinfo->user.transport_version = cts->transport_version; 763 } else { 764 cts->ccb_h.status = CAM_REQ_INVALID; 765 return; 766 } 767 768 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 769 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 770 *discenable |= devinfo.target_mask; 771 else 772 *discenable &= ~devinfo.target_mask; 773 } 774 775 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 776 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 777 *tagenable |= devinfo.target_mask; 778 else 779 *tagenable &= ~devinfo.target_mask; 780 } 781 782 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 783 ahd_validate_width(ahd, /*tinfo limit*/NULL, 784 &spi->bus_width, ROLE_UNKNOWN); 785 ahd_set_width(ahd, &devinfo, spi->bus_width, 786 update_type, /*paused*/FALSE); 787 } 788 789 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 790 if (update_type == AHD_TRANS_USER) 791 spi->ppr_options = tinfo->user.ppr_options; 792 else 793 spi->ppr_options = tinfo->goal.ppr_options; 794 } 795 796 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 797 if (update_type == AHD_TRANS_USER) 798 spi->sync_offset = tinfo->user.offset; 799 else 800 spi->sync_offset = tinfo->goal.offset; 801 } 802 803 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 804 if (update_type == AHD_TRANS_USER) 805 spi->sync_period = tinfo->user.period; 806 else 807 spi->sync_period = tinfo->goal.period; 808 } 809 810 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 811 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 812 u_int maxsync; 813 814 maxsync = AHD_SYNCRATE_MAX; 815 816 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 817 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 818 819 if ((*discenable & devinfo.target_mask) == 0) 820 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 821 822 ahd_find_syncrate(ahd, &spi->sync_period, 823 &spi->ppr_options, maxsync); 824 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 825 spi->sync_period, &spi->sync_offset, 826 spi->bus_width, ROLE_UNKNOWN); 827 828 /* We use a period of 0 to represent async */ 829 if (spi->sync_offset == 0) { 830 spi->sync_period = 0; 831 spi->ppr_options = 0; 832 } 833 834 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 835 spi->sync_offset, spi->ppr_options, 836 update_type, /*paused*/FALSE); 837 } 838 cts->ccb_h.status = CAM_REQ_CMP; 839} 840 841static void 842ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 843 struct ccb_trans_settings *cts) 844{ 845 struct ahd_devinfo devinfo; 846 struct ccb_trans_settings_scsi *scsi; 847 struct ccb_trans_settings_spi *spi; 848 struct ahd_initiator_tinfo *targ_info; 849 struct ahd_tmode_tstate *tstate; 850 struct ahd_transinfo *tinfo; 851 852 scsi = &cts->proto_specific.scsi; 853 spi = &cts->xport_specific.spi; 854 ahd_compile_devinfo(&devinfo, our_id, 855 cts->ccb_h.target_id, 856 cts->ccb_h.target_lun, 857 channel, ROLE_UNKNOWN); 858 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 859 devinfo.our_scsiid, 860 devinfo.target, &tstate); 861 862 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 863 tinfo = &targ_info->curr; 864 else 865 tinfo = &targ_info->user; 866 867 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 868 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 869 if (cts->type == CTS_TYPE_USER_SETTINGS) { 870 if ((ahd->user_discenable & devinfo.target_mask) != 0) 871 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 872 873 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 874 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 875 } else { 876 if ((tstate->discenable & devinfo.target_mask) != 0) 877 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 878 879 if ((tstate->tagenable & devinfo.target_mask) != 0) 880 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 881 } 882 cts->protocol_version = tinfo->protocol_version; 883 cts->transport_version = tinfo->transport_version; 884 885 spi->sync_period = tinfo->period; 886 spi->sync_offset = tinfo->offset; 887 spi->bus_width = tinfo->width; 888 spi->ppr_options = tinfo->ppr_options; 889 890 cts->protocol = PROTO_SCSI; 891 cts->transport = XPORT_SPI; 892 spi->valid = CTS_SPI_VALID_SYNC_RATE 893 | CTS_SPI_VALID_SYNC_OFFSET 894 | CTS_SPI_VALID_BUS_WIDTH 895 | CTS_SPI_VALID_PPR_OPTIONS; 896 897 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 898 scsi->valid = CTS_SCSI_VALID_TQ; 899 spi->valid |= CTS_SPI_VALID_DISC; 900 } else { 901 scsi->valid = 0; 902 } 903 904 cts->ccb_h.status = CAM_REQ_CMP; 905} 906 907static void 908ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 909{ 910 struct ahd_softc *ahd; 911 struct cam_sim *sim; 912 913 sim = (struct cam_sim *)callback_arg; 914 ahd = (struct ahd_softc *)cam_sim_softc(sim); 915 switch (code) { 916 case AC_LOST_DEVICE: 917 { 918 struct ahd_devinfo devinfo; 919 920 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 921 xpt_path_target_id(path), 922 xpt_path_lun_id(path), 923 SIM_CHANNEL(ahd, sim), 924 ROLE_UNKNOWN); 925 926 /* 927 * Revert to async/narrow transfers 928 * for the next device. 929 */ 930 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 931 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 932 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 933 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 934 /*paused*/FALSE); 935 break; 936 } 937 default: 938 break; 939 } 940} 941 942static void 943ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 944 int error) 945{ 946 struct scb *scb; 947 union ccb *ccb; 948 struct ahd_softc *ahd; 949 struct ahd_initiator_tinfo *tinfo; 950 struct ahd_tmode_tstate *tstate; 951 u_int mask; 952 953 scb = (struct scb *)arg; 954 ccb = scb->io_ctx; 955 ahd = scb->ahd_softc; 956 957 if (error != 0) { 958 if (error == EFBIG) 959 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 960 else 961 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 962 if (nsegments != 0) 963 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 964 ahd_free_scb(ahd, scb); 965 xpt_done(ccb); 966 return; 967 } 968 scb->sg_count = 0; 969 if (nsegments != 0) { 970 void *sg; 971 bus_dmasync_op_t op; 972 u_int i; 973 974 /* Copy the segments into our SG list */ 975 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 976 977 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 978 dm_segs->ds_len, 979 /*last*/i == 1); 980 dm_segs++; 981 } 982 983 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 984 op = BUS_DMASYNC_PREREAD; 985 else 986 op = BUS_DMASYNC_PREWRITE; 987 988 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 989 990 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 991 struct target_data *tdata; 992 993 tdata = &scb->hscb->shared_data.tdata; 994 tdata->target_phases |= DPHASE_PENDING; 995 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 996 tdata->data_phase = P_DATAOUT; 997 else 998 tdata->data_phase = P_DATAIN; 999 } 1000 } 1001 1002 /* 1003 * Last time we need to check if this SCB needs to 1004 * be aborted. 1005 */ 1006 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1007 if (nsegments != 0) 1008 bus_dmamap_unload(ahd->buffer_dmat, 1009 scb->dmamap); 1010 ahd_free_scb(ahd, scb); 1011 xpt_done(ccb); 1012 return; 1013 } 1014 1015 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 1016 SCSIID_OUR_ID(scb->hscb->scsiid), 1017 SCSIID_TARGET(ahd, scb->hscb->scsiid), 1018 &tstate); 1019 1020 mask = SCB_GET_TARGET_MASK(ahd, scb); 1021 1022 if ((tstate->discenable & mask) != 0 1023 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1024 scb->hscb->control |= DISCENB; 1025 1026 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 1027 scb->flags |= SCB_PACKETIZED; 1028 if (scb->hscb->task_management != 0) 1029 scb->hscb->control &= ~MK_MESSAGE; 1030 } 1031 1032 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1033 && (tinfo->goal.width != 0 1034 || tinfo->goal.period != 0 1035 || tinfo->goal.ppr_options != 0)) { 1036 scb->flags |= SCB_NEGOTIATE; 1037 scb->hscb->control |= MK_MESSAGE; 1038 } else if ((tstate->auto_negotiate & mask) != 0) { 1039 scb->flags |= SCB_AUTO_NEGOTIATE; 1040 scb->hscb->control |= MK_MESSAGE; 1041 } 1042 1043 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 1044 1045 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1046 1047 aic_scb_timer_start(scb); 1048 1049 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1050 /* Define a mapping from our tag to the SCB. */ 1051 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 1052 ahd_pause(ahd); 1053 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 1054 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 1055 ahd_unpause(ahd); 1056 } else { 1057 ahd_queue_scb(ahd, scb); 1058 } 1059 1060} 1061 1062static void 1063ahd_poll(struct cam_sim *sim) 1064{ 1065 ahd_intr(cam_sim_softc(sim)); 1066} 1067 1068static void 1069ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 1070 struct ccb_scsiio *csio, struct scb *scb) 1071{ 1072 struct hardware_scb *hscb; 1073 struct ccb_hdr *ccb_h; 1074 int error; 1075 1076 hscb = scb->hscb; 1077 ccb_h = &csio->ccb_h; 1078 1079 csio->resid = 0; 1080 csio->sense_resid = 0; 1081 if (ccb_h->func_code == XPT_SCSI_IO) { 1082 hscb->cdb_len = csio->cdb_len; 1083 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1084 1085 if (hscb->cdb_len > MAX_CDB_LEN 1086 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 1087 1088 /* 1089 * Should CAM start to support CDB sizes 1090 * greater than 16 bytes, we could use 1091 * the sense buffer to store the CDB. 1092 */ 1093 aic_set_transaction_status(scb, 1094 CAM_REQ_INVALID); 1095 ahd_free_scb(ahd, scb); 1096 xpt_done((union ccb *)csio); 1097 return; 1098 } 1099 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 1100 hscb->shared_data.idata.cdb_from_host.cdbptr = 1101 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 1102 hscb->shared_data.idata.cdb_from_host.cdblen = 1103 csio->cdb_len; 1104 hscb->cdb_len |= SCB_CDB_LEN_PTR; 1105 } else { 1106 memcpy(hscb->shared_data.idata.cdb, 1107 csio->cdb_io.cdb_ptr, 1108 hscb->cdb_len); 1109 } 1110 } else { 1111 if (hscb->cdb_len > MAX_CDB_LEN) { 1112 1113 aic_set_transaction_status(scb, 1114 CAM_REQ_INVALID); 1115 ahd_free_scb(ahd, scb); 1116 xpt_done((union ccb *)csio); 1117 return; 1118 } 1119 memcpy(hscb->shared_data.idata.cdb, 1120 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1121 } 1122 } 1123 1124 error = bus_dmamap_load_ccb(ahd->buffer_dmat, 1125 scb->dmamap, 1126 (union ccb *)csio, 1127 ahd_execute_scb, 1128 scb, /*flags*/0); 1129 if (error == EINPROGRESS) { 1130 /* 1131 * So as to maintain ordering, freeze the controller queue 1132 * until our mapping is returned. 1133 */ 1134 xpt_freeze_simq(sim, /*count*/1); 1135 scb->io_ctx->ccb_h.status |= CAM_RELEASE_SIMQ; 1136 } 1137} 1138 1139static void 1140ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1141{ 1142 union ccb *abort_ccb; 1143 1144 abort_ccb = ccb->cab.abort_ccb; 1145 switch (abort_ccb->ccb_h.func_code) { 1146#ifdef AHD_TARGET_MODE 1147 case XPT_ACCEPT_TARGET_IO: 1148 case XPT_IMMEDIATE_NOTIFY: 1149 case XPT_CONT_TARGET_IO: 1150 { 1151 struct ahd_tmode_tstate *tstate; 1152 struct ahd_tmode_lstate *lstate; 1153 struct ccb_hdr_slist *list; 1154 cam_status status; 1155 1156 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1157 &lstate, TRUE); 1158 1159 if (status != CAM_REQ_CMP) { 1160 ccb->ccb_h.status = status; 1161 break; 1162 } 1163 1164 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1165 list = &lstate->accept_tios; 1166 else if (abort_ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) 1167 list = &lstate->immed_notifies; 1168 else 1169 list = NULL; 1170 1171 if (list != NULL) { 1172 struct ccb_hdr *curelm; 1173 int found; 1174 1175 curelm = SLIST_FIRST(list); 1176 found = 0; 1177 if (curelm == &abort_ccb->ccb_h) { 1178 found = 1; 1179 SLIST_REMOVE_HEAD(list, sim_links.sle); 1180 } else { 1181 while(curelm != NULL) { 1182 struct ccb_hdr *nextelm; 1183 1184 nextelm = 1185 SLIST_NEXT(curelm, sim_links.sle); 1186 1187 if (nextelm == &abort_ccb->ccb_h) { 1188 found = 1; 1189 SLIST_NEXT(curelm, 1190 sim_links.sle) = 1191 SLIST_NEXT(nextelm, 1192 sim_links.sle); 1193 break; 1194 } 1195 curelm = nextelm; 1196 } 1197 } 1198 1199 if (found) { 1200 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1201 xpt_done(abort_ccb); 1202 ccb->ccb_h.status = CAM_REQ_CMP; 1203 } else { 1204 xpt_print_path(abort_ccb->ccb_h.path); 1205 printf("Not found\n"); 1206 ccb->ccb_h.status = CAM_PATH_INVALID; 1207 } 1208 break; 1209 } 1210 /* FALLTHROUGH */ 1211 } 1212#endif 1213 case XPT_SCSI_IO: 1214 /* XXX Fully implement the hard ones */ 1215 ccb->ccb_h.status = CAM_UA_ABORT; 1216 break; 1217 default: 1218 ccb->ccb_h.status = CAM_REQ_INVALID; 1219 break; 1220 } 1221 xpt_done(ccb); 1222} 1223 1224void 1225ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1226 u_int lun, ac_code code, void *opt_arg) 1227{ 1228 struct ccb_trans_settings cts; 1229 struct cam_path *path; 1230 void *arg; 1231 int error; 1232 1233 arg = NULL; 1234 error = ahd_create_path(ahd, channel, target, lun, &path); 1235 1236 if (error != CAM_REQ_CMP) 1237 return; 1238 1239 switch (code) { 1240 case AC_TRANSFER_NEG: 1241 { 1242 struct ccb_trans_settings_scsi *scsi; 1243 1244 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1245 scsi = &cts.proto_specific.scsi; 1246 cts.ccb_h.path = path; 1247 cts.ccb_h.target_id = target; 1248 cts.ccb_h.target_lun = lun; 1249 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1250 arg = &cts; 1251 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1252 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1253 if (opt_arg == NULL) 1254 break; 1255 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1256 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1257 scsi->valid |= CTS_SCSI_VALID_TQ; 1258 break; 1259 } 1260 case AC_SENT_BDR: 1261 case AC_BUS_RESET: 1262 break; 1263 default: 1264 panic("ahd_send_async: Unexpected async event"); 1265 } 1266 xpt_async(code, path, arg); 1267 xpt_free_path(path); 1268} 1269 1270void 1271ahd_platform_set_tags(struct ahd_softc *ahd, 1272 struct ahd_devinfo *devinfo, int enable) 1273{ 1274} 1275 1276int 1277ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1278{ 1279 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1280 M_NOWAIT | M_ZERO); 1281 if (ahd->platform_data == NULL) 1282 return (ENOMEM); 1283 return (0); 1284} 1285 1286void 1287ahd_platform_free(struct ahd_softc *ahd) 1288{ 1289 struct ahd_platform_data *pdata; 1290 1291 pdata = ahd->platform_data; 1292 if (pdata != NULL) { 1293 if (pdata->regs[0] != NULL) 1294 bus_release_resource(ahd->dev_softc, 1295 pdata->regs_res_type[0], 1296 pdata->regs_res_id[0], 1297 pdata->regs[0]); 1298 1299 if (pdata->regs[1] != NULL) 1300 bus_release_resource(ahd->dev_softc, 1301 pdata->regs_res_type[1], 1302 pdata->regs_res_id[1], 1303 pdata->regs[1]); 1304 1305 if (pdata->irq != NULL) 1306 bus_release_resource(ahd->dev_softc, 1307 pdata->irq_res_type, 1308 0, pdata->irq); 1309 1310 if (pdata->sim != NULL) { 1311 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1312 xpt_free_path(pdata->path); 1313 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1314 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1315 } 1316 if (pdata->eh != NULL) 1317 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1318 free(ahd->platform_data, M_DEVBUF); 1319 } 1320} 1321 1322int 1323ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1324{ 1325 /* We don't sort softcs under FreeBSD so report equal always */ 1326 return (0); 1327} 1328 1329int 1330ahd_detach(device_t dev) 1331{ 1332 struct ahd_softc *ahd; 1333 1334 device_printf(dev, "detaching device\n"); 1335 ahd = device_get_softc(dev); 1336 ahd_lock(ahd); 1337 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1338 ahd_intr_enable(ahd, FALSE); 1339 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1340 ahd_unlock(ahd); 1341 ahd_free(ahd); 1342 return (0); 1343} 1344 1345#if 0 1346static void 1347ahd_dump_targcmd(struct target_cmd *cmd) 1348{ 1349 uint8_t *byte; 1350 uint8_t *last_byte; 1351 int i; 1352 1353 byte = &cmd->initiator_channel; 1354 /* Debugging info for received commands */ 1355 last_byte = &cmd[1].initiator_channel; 1356 1357 i = 0; 1358 while (byte < last_byte) { 1359 if (i == 0) 1360 printf("\t"); 1361 printf("%#x", *byte++); 1362 i++; 1363 if (i == 8) { 1364 printf("\n"); 1365 i = 0; 1366 } else { 1367 printf(", "); 1368 } 1369 } 1370} 1371#endif 1372 1373static int 1374ahd_modevent(module_t mod, int type, void *data) 1375{ 1376 /* XXX Deal with busy status on unload. */ 1377 /* XXX Deal with unknown events */ 1378 return 0; 1379} 1380 1381static moduledata_t ahd_mod = { 1382 "ahd", 1383 ahd_modevent, 1384 NULL 1385}; 1386 1387/********************************** DDB Hooks *********************************/ 1388#ifdef DDB 1389static struct ahd_softc *ahd_ddb_softc; 1390static int ahd_ddb_paused; 1391static int ahd_ddb_paused_on_entry; 1392DB_COMMAND(ahd_sunit, ahd_ddb_sunit) 1393{ 1394 struct ahd_softc *list_ahd; 1395 1396 ahd_ddb_softc = NULL; 1397 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1398 if (list_ahd->unit == addr) 1399 ahd_ddb_softc = list_ahd; 1400 } 1401 if (ahd_ddb_softc == NULL) 1402 db_error("No matching softc found!\n"); 1403} 1404 1405DB_COMMAND(ahd_pause, ahd_ddb_pause) 1406{ 1407 if (ahd_ddb_softc == NULL) { 1408 db_error("Must set unit with ahd_sunit first!\n"); 1409 return; 1410 } 1411 if (ahd_ddb_paused == 0) { 1412 ahd_ddb_paused++; 1413 if (ahd_is_paused(ahd_ddb_softc)) { 1414 ahd_ddb_paused_on_entry++; 1415 return; 1416 } 1417 ahd_pause(ahd_ddb_softc); 1418 } 1419} 1420 1421DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1422{ 1423 if (ahd_ddb_softc == NULL) { 1424 db_error("Must set unit with ahd_sunit first!\n"); 1425 return; 1426 } 1427 if (ahd_ddb_paused != 0) { 1428 ahd_ddb_paused = 0; 1429 if (ahd_ddb_paused_on_entry) 1430 return; 1431 ahd_unpause(ahd_ddb_softc); 1432 } else if (ahd_ddb_paused_on_entry != 0) { 1433 /* Two unpauses to clear a paused on entry. */ 1434 ahd_ddb_paused_on_entry = 0; 1435 ahd_unpause(ahd_ddb_softc); 1436 } 1437} 1438 1439DB_COMMAND(ahd_in, ahd_ddb_in) 1440{ 1441 int c; 1442 int size; 1443 1444 if (ahd_ddb_softc == NULL) { 1445 db_error("Must set unit with ahd_sunit first!\n"); 1446 return; 1447 } 1448 if (have_addr == 0) 1449 return; 1450 1451 size = 1; 1452 while ((c = *modif++) != '\0') { 1453 switch (c) { 1454 case 'b': 1455 size = 1; 1456 break; 1457 case 'w': 1458 size = 2; 1459 break; 1460 case 'l': 1461 size = 4; 1462 break; 1463 } 1464 } 1465 1466 if (count <= 0) 1467 count = 1; 1468 while (--count >= 0) { 1469 db_printf("%04lx (M)%x: \t", (u_long)addr, 1470 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1471 switch (size) { 1472 case 1: 1473 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1474 break; 1475 case 2: 1476 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1477 break; 1478 case 4: 1479 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1480 break; 1481 } 1482 } 1483} 1484 1485DB_FUNC(ahd_out, ahd_ddb_out, db_cmd_table, CS_MORE, NULL) 1486{ 1487 db_expr_t old_value; 1488 db_expr_t new_value; 1489 int size; 1490 1491 if (ahd_ddb_softc == NULL) { 1492 db_error("Must set unit with ahd_sunit first!\n"); 1493 return; 1494 } 1495 1496 switch (modif[0]) { 1497 case '\0': 1498 case 'b': 1499 size = 1; 1500 break; 1501 case 'h': 1502 size = 2; 1503 break; 1504 case 'l': 1505 size = 4; 1506 break; 1507 default: 1508 db_error("Unknown size\n"); 1509 return; 1510 } 1511 1512 while (db_expression(&new_value)) { 1513 switch (size) { 1514 default: 1515 case 1: 1516 old_value = ahd_inb(ahd_ddb_softc, addr); 1517 ahd_outb(ahd_ddb_softc, addr, new_value); 1518 break; 1519 case 2: 1520 old_value = ahd_inw(ahd_ddb_softc, addr); 1521 ahd_outw(ahd_ddb_softc, addr, new_value); 1522 break; 1523 case 4: 1524 old_value = ahd_inl(ahd_ddb_softc, addr); 1525 ahd_outl(ahd_ddb_softc, addr, new_value); 1526 break; 1527 } 1528 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1529 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1530 (u_long)old_value, (u_long)new_value); 1531 addr += size; 1532 } 1533 db_skip_to_eol(); 1534} 1535 1536DB_COMMAND(ahd_dump, ahd_ddb_dump) 1537{ 1538 if (ahd_ddb_softc == NULL) { 1539 db_error("Must set unit with ahd_sunit first!\n"); 1540 return; 1541 } 1542 ahd_dump_card_state(ahd_ddb_softc); 1543} 1544 1545#endif 1546 1547 1548DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1549MODULE_DEPEND(ahd, cam, 1, 1, 1); 1550MODULE_VERSION(ahd, 1); 1551