aic7xxx_osm.c revision 133911
1/* 2 * Bus independent FreeBSD shim for the aic7xxx based Adaptec SCSI controllers 3 * 4 * Copyright (c) 1994-2001 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * Alternatively, this software may be distributed under the terms of the 17 * GNU Public License ("GPL"). 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic7xxx_osm.c#20 $ 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/dev/aic7xxx/aic7xxx_osm.c 133911 2004-08-17 00:14:31Z gibbs $"); 36 37#include <dev/aic7xxx/aic7xxx_osm.h> 38#include <dev/aic7xxx/aic7xxx_inline.h> 39 40#include <sys/kthread.h> 41 42#ifndef AHC_TMODE_ENABLE 43#define AHC_TMODE_ENABLE 0 44#endif 45 46#include <dev/aic7xxx/aic_osm_lib.c> 47 48#define ccb_scb_ptr spriv_ptr0 49 50devclass_t ahc_devclass; 51 52#if UNUSED 53static void ahc_dump_targcmd(struct target_cmd *cmd); 54#endif 55static int ahc_modevent(module_t mod, int type, void *data); 56static void ahc_action(struct cam_sim *sim, union ccb *ccb); 57static void ahc_get_tran_settings(struct ahc_softc *ahc, 58 int our_id, char channel, 59 struct ccb_trans_settings *cts); 60static void ahc_async(void *callback_arg, uint32_t code, 61 struct cam_path *path, void *arg); 62static void ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 63 int nsegments, int error); 64static void ahc_poll(struct cam_sim *sim); 65static void ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 66 struct ccb_scsiio *csio, struct scb *scb); 67static void ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, 68 union ccb *ccb); 69static int ahc_create_path(struct ahc_softc *ahc, 70 char channel, u_int target, u_int lun, 71 struct cam_path **path); 72 73 74static int 75ahc_create_path(struct ahc_softc *ahc, char channel, u_int target, 76 u_int lun, struct cam_path **path) 77{ 78 path_id_t path_id; 79 80 if (channel == 'B') 81 path_id = cam_sim_path(ahc->platform_data->sim_b); 82 else 83 path_id = cam_sim_path(ahc->platform_data->sim); 84 85 return (xpt_create_path(path, /*periph*/NULL, 86 path_id, target, lun)); 87} 88 89int 90ahc_map_int(struct ahc_softc *ahc) 91{ 92 int error; 93 int zero; 94 int shareable; 95 96 zero = 0; 97 shareable = (ahc->flags & AHC_EDGE_INTERRUPT) ? 0: RF_SHAREABLE; 98 ahc->platform_data->irq = 99 bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IRQ, &zero, 100 RF_ACTIVE | shareable); 101 if (ahc->platform_data->irq == NULL) { 102 device_printf(ahc->dev_softc, 103 "bus_alloc_resource() failed to allocate IRQ\n"); 104 return (ENOMEM); 105 } 106 ahc->platform_data->irq_res_type = SYS_RES_IRQ; 107 108 /* Hook up our interrupt handler */ 109 error = bus_setup_intr(ahc->dev_softc, ahc->platform_data->irq, 110 INTR_TYPE_CAM, ahc_platform_intr, ahc, 111 &ahc->platform_data->ih); 112 113 if (error != 0) 114 device_printf(ahc->dev_softc, "bus_setup_intr() failed: %d\n", 115 error); 116 return (error); 117} 118 119int 120aic7770_map_registers(struct ahc_softc *ahc, u_int unused_ioport_arg) 121{ 122 struct resource *regs; 123 int rid; 124 125 rid = 0; 126 regs = bus_alloc_resource_any(ahc->dev_softc, SYS_RES_IOPORT, &rid, 127 RF_ACTIVE); 128 if (regs == NULL) { 129 device_printf(ahc->dev_softc, "Unable to map I/O space?!\n"); 130 return ENOMEM; 131 } 132 ahc->platform_data->regs_res_type = SYS_RES_IOPORT; 133 ahc->platform_data->regs_res_id = rid, 134 ahc->platform_data->regs = regs; 135 ahc->tag = rman_get_bustag(regs); 136 ahc->bsh = rman_get_bushandle(regs); 137 return (0); 138} 139 140/* 141 * Attach all the sub-devices we can find 142 */ 143int 144ahc_attach(struct ahc_softc *ahc) 145{ 146 char ahc_info[256]; 147 struct ccb_setasync csa; 148 struct cam_devq *devq; 149 int bus_id; 150 int bus_id2; 151 struct cam_sim *sim; 152 struct cam_sim *sim2; 153 struct cam_path *path; 154 struct cam_path *path2; 155 long s; 156 int count; 157 158 count = 0; 159 sim = NULL; 160 sim2 = NULL; 161 162 /* 163 * Create a thread to perform all recovery. 164 */ 165 if (ahc_spawn_recovery_thread(ahc) != 0) 166 goto fail; 167 168 ahc_controller_info(ahc, ahc_info); 169 printf("%s\n", ahc_info); 170 ahc_lock(ahc, &s); 171 172 /* 173 * Attach secondary channel first if the user has 174 * declared it the primary channel. 175 */ 176 if ((ahc->features & AHC_TWIN) != 0 177 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 178 bus_id = 1; 179 bus_id2 = 0; 180 } else { 181 bus_id = 0; 182 bus_id2 = 1; 183 } 184 185 /* 186 * Create the device queue for our SIM(s). 187 */ 188 devq = cam_simq_alloc(AHC_MAX_QUEUE); 189 if (devq == NULL) 190 goto fail; 191 192 /* 193 * Construct our first channel SIM entry 194 */ 195 sim = cam_sim_alloc(ahc_action, ahc_poll, "ahc", ahc, 196 device_get_unit(ahc->dev_softc), 197 1, AHC_MAX_QUEUE, devq); 198 if (sim == NULL) { 199 cam_simq_free(devq); 200 goto fail; 201 } 202 203 if (xpt_bus_register(sim, bus_id) != CAM_SUCCESS) { 204 cam_sim_free(sim, /*free_devq*/TRUE); 205 sim = NULL; 206 goto fail; 207 } 208 209 if (xpt_create_path(&path, /*periph*/NULL, 210 cam_sim_path(sim), CAM_TARGET_WILDCARD, 211 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 212 xpt_bus_deregister(cam_sim_path(sim)); 213 cam_sim_free(sim, /*free_devq*/TRUE); 214 sim = NULL; 215 goto fail; 216 } 217 218 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 219 csa.ccb_h.func_code = XPT_SASYNC_CB; 220 csa.event_enable = AC_LOST_DEVICE; 221 csa.callback = ahc_async; 222 csa.callback_arg = sim; 223 xpt_action((union ccb *)&csa); 224 count++; 225 226 if (ahc->features & AHC_TWIN) { 227 sim2 = cam_sim_alloc(ahc_action, ahc_poll, "ahc", 228 ahc, device_get_unit(ahc->dev_softc), 1, 229 AHC_MAX_QUEUE, devq); 230 231 if (sim2 == NULL) { 232 printf("ahc_attach: Unable to attach second " 233 "bus due to resource shortage"); 234 goto fail; 235 } 236 237 if (xpt_bus_register(sim2, bus_id2) != CAM_SUCCESS) { 238 printf("ahc_attach: Unable to attach second " 239 "bus due to resource shortage"); 240 /* 241 * We do not want to destroy the device queue 242 * because the first bus is using it. 243 */ 244 cam_sim_free(sim2, /*free_devq*/FALSE); 245 goto fail; 246 } 247 248 if (xpt_create_path(&path2, /*periph*/NULL, 249 cam_sim_path(sim2), 250 CAM_TARGET_WILDCARD, 251 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 252 xpt_bus_deregister(cam_sim_path(sim2)); 253 cam_sim_free(sim2, /*free_devq*/FALSE); 254 sim2 = NULL; 255 goto fail; 256 } 257 xpt_setup_ccb(&csa.ccb_h, path2, /*priority*/5); 258 csa.ccb_h.func_code = XPT_SASYNC_CB; 259 csa.event_enable = AC_LOST_DEVICE; 260 csa.callback = ahc_async; 261 csa.callback_arg = sim2; 262 xpt_action((union ccb *)&csa); 263 count++; 264 } 265 266fail: 267 if ((ahc->features & AHC_TWIN) != 0 268 && (ahc->flags & AHC_PRIMARY_CHANNEL) != 0) { 269 ahc->platform_data->sim_b = sim; 270 ahc->platform_data->path_b = path; 271 ahc->platform_data->sim = sim2; 272 ahc->platform_data->path = path2; 273 } else { 274 ahc->platform_data->sim = sim; 275 ahc->platform_data->path = path; 276 ahc->platform_data->sim_b = sim2; 277 ahc->platform_data->path_b = path2; 278 } 279 280 if (count != 0) { 281 /* We have to wait until after any system dumps... */ 282 ahc->platform_data->eh = 283 EVENTHANDLER_REGISTER(shutdown_final, ahc_shutdown, 284 ahc, SHUTDOWN_PRI_DEFAULT); 285 ahc_intr_enable(ahc, TRUE); 286 } 287 288 ahc_unlock(ahc, &s); 289 return (count); 290} 291 292/* 293 * Catch an interrupt from the adapter 294 */ 295void 296ahc_platform_intr(void *arg) 297{ 298 struct ahc_softc *ahc; 299 300 ahc = (struct ahc_softc *)arg; 301 ahc_intr(ahc); 302} 303 304/* 305 * We have an scb which has been processed by the 306 * adaptor, now we look to see how the operation 307 * went. 308 */ 309void 310ahc_done(struct ahc_softc *ahc, struct scb *scb) 311{ 312 union ccb *ccb; 313 314 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 315 ("ahc_done - scb %d\n", scb->hscb->tag)); 316 317 ccb = scb->io_ctx; 318 LIST_REMOVE(scb, pending_links); 319 if ((scb->flags & SCB_TIMEDOUT) != 0) 320 LIST_REMOVE(scb, timedout_links); 321 if ((scb->flags & SCB_UNTAGGEDQ) != 0) { 322 struct scb_tailq *untagged_q; 323 int target_offset; 324 325 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 326 untagged_q = &ahc->untagged_queues[target_offset]; 327 TAILQ_REMOVE(untagged_q, scb, links.tqe); 328 scb->flags &= ~SCB_UNTAGGEDQ; 329 ahc_run_untagged_queue(ahc, untagged_q); 330 } 331 332 untimeout(ahc_platform_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch); 333 334 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 335 bus_dmasync_op_t op; 336 337 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 338 op = BUS_DMASYNC_POSTREAD; 339 else 340 op = BUS_DMASYNC_POSTWRITE; 341 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 342 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 343 } 344 345 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 346 struct cam_path *ccb_path; 347 348 /* 349 * If we have finally disconnected, clean up our 350 * pending device state. 351 * XXX - There may be error states that cause where 352 * we will remain connected. 353 */ 354 ccb_path = ccb->ccb_h.path; 355 if (ahc->pending_device != NULL 356 && xpt_path_comp(ahc->pending_device->path, ccb_path) == 0) { 357 358 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 359 ahc->pending_device = NULL; 360 } else { 361 if (bootverbose) { 362 xpt_print_path(ccb->ccb_h.path); 363 printf("Still connected\n"); 364 } 365 aic_freeze_ccb(ccb); 366 } 367 } 368 369 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 370 ccb->ccb_h.status |= CAM_REQ_CMP; 371 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 372 ahc_free_scb(ahc, scb); 373 xpt_done(ccb); 374 return; 375 } 376 377 /* 378 * If the recovery SCB completes, we have to be 379 * out of our timeout. 380 */ 381 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 382 struct scb *list_scb; 383 384 ahc->scb_data->recovery_scbs--; 385 386 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 387 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 388 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 389 390 if (ahc->scb_data->recovery_scbs == 0) { 391 /* 392 * All recovery actions have completed successfully, 393 * so reinstate the timeouts for all other pending 394 * commands. 395 */ 396 LIST_FOREACH(list_scb, &ahc->pending_scbs, 397 pending_links) { 398 399 aic_scb_timer_reset(scb, aic_get_timeout(scb)); 400 } 401 402 ahc_print_path(ahc, scb); 403 printf("no longer in timeout, status = %x\n", 404 ccb->ccb_h.status); 405 } 406 } 407 408 /* Don't clobber any existing error state */ 409 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 410 ccb->ccb_h.status |= CAM_REQ_CMP; 411 } else if ((scb->flags & SCB_SENSE) != 0) { 412 /* 413 * We performed autosense retrieval. 414 * 415 * Zero any sense not transferred by the 416 * device. The SCSI spec mandates that any 417 * untransfered data should be assumed to be 418 * zero. Complete the 'bounce' of sense information 419 * through buffers accessible via bus-space by 420 * copying it into the clients csio. 421 */ 422 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 423 memcpy(&ccb->csio.sense_data, 424 ahc_get_sense_buf(ahc, scb), 425 (aic_le32toh(scb->sg_list->len) & AHC_SG_LEN_MASK) 426 - ccb->csio.sense_resid); 427 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 428 } 429 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 430 ahc_free_scb(ahc, scb); 431 xpt_done(ccb); 432} 433 434static void 435ahc_action(struct cam_sim *sim, union ccb *ccb) 436{ 437 struct ahc_softc *ahc; 438 struct ahc_tmode_lstate *lstate; 439 u_int target_id; 440 u_int our_id; 441 long s; 442 443 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahc_action\n")); 444 445 ahc = (struct ahc_softc *)cam_sim_softc(sim); 446 447 target_id = ccb->ccb_h.target_id; 448 our_id = SIM_SCSI_ID(ahc, sim); 449 450 switch (ccb->ccb_h.func_code) { 451 /* Common cases first */ 452 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 453 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 454 { 455 struct ahc_tmode_tstate *tstate; 456 cam_status status; 457 458 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 459 &lstate, TRUE); 460 461 if (status != CAM_REQ_CMP) { 462 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 463 /* Response from the black hole device */ 464 tstate = NULL; 465 lstate = ahc->black_hole; 466 } else { 467 ccb->ccb_h.status = status; 468 xpt_done(ccb); 469 break; 470 } 471 } 472 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 473 474 ahc_lock(ahc, &s); 475 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 476 sim_links.sle); 477 ccb->ccb_h.status = CAM_REQ_INPROG; 478 if ((ahc->flags & AHC_TQINFIFO_BLOCKED) != 0) 479 ahc_run_tqinfifo(ahc, /*paused*/FALSE); 480 ahc_unlock(ahc, &s); 481 break; 482 } 483 484 /* 485 * The target_id represents the target we attempt to 486 * select. In target mode, this is the initiator of 487 * the original command. 488 */ 489 our_id = target_id; 490 target_id = ccb->csio.init_id; 491 /* FALLTHROUGH */ 492 } 493 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 494 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 495 { 496 struct scb *scb; 497 struct hardware_scb *hscb; 498 499 if ((ahc->flags & AHC_INITIATORROLE) == 0 500 && (ccb->ccb_h.func_code == XPT_SCSI_IO 501 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 502 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 503 xpt_done(ccb); 504 return; 505 } 506 507 /* 508 * get an scb to use. 509 */ 510 ahc_lock(ahc, &s); 511 if ((scb = ahc_get_scb(ahc)) == NULL) { 512 513 xpt_freeze_simq(sim, /*count*/1); 514 ahc->flags |= AHC_RESOURCE_SHORTAGE; 515 ahc_unlock(ahc, &s); 516 ccb->ccb_h.status = CAM_REQUEUE_REQ; 517 xpt_done(ccb); 518 return; 519 } 520 ahc_unlock(ahc, &s); 521 522 hscb = scb->hscb; 523 524 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 525 ("start scb(%p)\n", scb)); 526 scb->io_ctx = ccb; 527 /* 528 * So we can find the SCB when an abort is requested 529 */ 530 ccb->ccb_h.ccb_scb_ptr = scb; 531 532 /* 533 * Put all the arguments for the xfer in the scb 534 */ 535 hscb->control = 0; 536 hscb->scsiid = BUILD_SCSIID(ahc, sim, target_id, our_id); 537 hscb->lun = ccb->ccb_h.target_lun; 538 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 539 hscb->cdb_len = 0; 540 scb->flags |= SCB_DEVICE_RESET; 541 hscb->control |= MK_MESSAGE; 542 ahc_execute_scb(scb, NULL, 0, 0); 543 } else { 544 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 545 struct target_data *tdata; 546 547 tdata = &hscb->shared_data.tdata; 548 if (ahc->pending_device == lstate) 549 scb->flags |= SCB_TARGET_IMMEDIATE; 550 hscb->control |= TARGET_SCB; 551 scb->flags |= SCB_TARGET_SCB; 552 tdata->target_phases = 0; 553 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 554 tdata->target_phases |= SPHASE_PENDING; 555 tdata->scsi_status = 556 ccb->csio.scsi_status; 557 } 558 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 559 tdata->target_phases |= NO_DISCONNECT; 560 561 tdata->initiator_tag = ccb->csio.tag_id; 562 } 563 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 564 hscb->control |= ccb->csio.tag_action; 565 566 ahc_setup_data(ahc, sim, &ccb->csio, scb); 567 } 568 break; 569 } 570 case XPT_NOTIFY_ACK: 571 case XPT_IMMED_NOTIFY: 572 { 573 struct ahc_tmode_tstate *tstate; 574 struct ahc_tmode_lstate *lstate; 575 cam_status status; 576 577 status = ahc_find_tmode_devs(ahc, sim, ccb, &tstate, 578 &lstate, TRUE); 579 580 if (status != CAM_REQ_CMP) { 581 ccb->ccb_h.status = status; 582 xpt_done(ccb); 583 break; 584 } 585 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 586 sim_links.sle); 587 ccb->ccb_h.status = CAM_REQ_INPROG; 588 ahc_send_lstate_events(ahc, lstate); 589 break; 590 } 591 case XPT_EN_LUN: /* Enable LUN as a target */ 592 ahc_handle_en_lun(ahc, sim, ccb); 593 xpt_done(ccb); 594 break; 595 case XPT_ABORT: /* Abort the specified CCB */ 596 { 597 ahc_abort_ccb(ahc, sim, ccb); 598 break; 599 } 600 case XPT_SET_TRAN_SETTINGS: 601 { 602#ifdef AHC_NEW_TRAN_SETTINGS 603 struct ahc_devinfo devinfo; 604 struct ccb_trans_settings *cts; 605 struct ccb_trans_settings_scsi *scsi; 606 struct ccb_trans_settings_spi *spi; 607 struct ahc_initiator_tinfo *tinfo; 608 struct ahc_tmode_tstate *tstate; 609 uint16_t *discenable; 610 uint16_t *tagenable; 611 u_int update_type; 612 613 cts = &ccb->cts; 614 scsi = &cts->proto_specific.scsi; 615 spi = &cts->xport_specific.spi; 616 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 617 cts->ccb_h.target_id, 618 cts->ccb_h.target_lun, 619 SIM_CHANNEL(ahc, sim), 620 ROLE_UNKNOWN); 621 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 622 devinfo.our_scsiid, 623 devinfo.target, &tstate); 624 update_type = 0; 625 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 626 update_type |= AHC_TRANS_GOAL; 627 discenable = &tstate->discenable; 628 tagenable = &tstate->tagenable; 629 tinfo->curr.protocol_version = 630 cts->protocol_version; 631 tinfo->curr.transport_version = 632 cts->transport_version; 633 tinfo->goal.protocol_version = 634 cts->protocol_version; 635 tinfo->goal.transport_version = 636 cts->transport_version; 637 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 638 update_type |= AHC_TRANS_USER; 639 discenable = &ahc->user_discenable; 640 tagenable = &ahc->user_tagenable; 641 tinfo->user.protocol_version = 642 cts->protocol_version; 643 tinfo->user.transport_version = 644 cts->transport_version; 645 } else { 646 ccb->ccb_h.status = CAM_REQ_INVALID; 647 xpt_done(ccb); 648 break; 649 } 650 651 ahc_lock(ahc, &s); 652 653 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 654 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 655 *discenable |= devinfo.target_mask; 656 else 657 *discenable &= ~devinfo.target_mask; 658 } 659 660 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 661 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 662 *tagenable |= devinfo.target_mask; 663 else 664 *tagenable &= ~devinfo.target_mask; 665 } 666 667 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 668 ahc_validate_width(ahc, /*tinfo limit*/NULL, 669 &spi->bus_width, ROLE_UNKNOWN); 670 ahc_set_width(ahc, &devinfo, spi->bus_width, 671 update_type, /*paused*/FALSE); 672 } 673 674 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 675 if (update_type == AHC_TRANS_USER) 676 spi->ppr_options = tinfo->user.ppr_options; 677 else 678 spi->ppr_options = tinfo->goal.ppr_options; 679 } 680 681 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 682 if (update_type == AHC_TRANS_USER) 683 spi->sync_offset = tinfo->user.offset; 684 else 685 spi->sync_offset = tinfo->goal.offset; 686 } 687 688 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 689 if (update_type == AHC_TRANS_USER) 690 spi->sync_period = tinfo->user.period; 691 else 692 spi->sync_period = tinfo->goal.period; 693 } 694 695 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 696 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 697 struct ahc_syncrate *syncrate; 698 u_int maxsync; 699 700 if ((ahc->features & AHC_ULTRA2) != 0) 701 maxsync = AHC_SYNCRATE_DT; 702 else if ((ahc->features & AHC_ULTRA) != 0) 703 maxsync = AHC_SYNCRATE_ULTRA; 704 else 705 maxsync = AHC_SYNCRATE_FAST; 706 707 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 708 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 709 710 syncrate = ahc_find_syncrate(ahc, &spi->sync_period, 711 &spi->ppr_options, 712 maxsync); 713 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 714 syncrate, &spi->sync_offset, 715 spi->bus_width, ROLE_UNKNOWN); 716 717 /* We use a period of 0 to represent async */ 718 if (spi->sync_offset == 0) { 719 spi->sync_period = 0; 720 spi->ppr_options = 0; 721 } 722 723 ahc_set_syncrate(ahc, &devinfo, syncrate, 724 spi->sync_period, spi->sync_offset, 725 spi->ppr_options, update_type, 726 /*paused*/FALSE); 727 } 728 ahc_unlock(ahc, &s); 729 ccb->ccb_h.status = CAM_REQ_CMP; 730 xpt_done(ccb); 731#else 732 struct ahc_devinfo devinfo; 733 struct ccb_trans_settings *cts; 734 struct ahc_initiator_tinfo *tinfo; 735 struct ahc_tmode_tstate *tstate; 736 uint16_t *discenable; 737 uint16_t *tagenable; 738 u_int update_type; 739 long s; 740 741 cts = &ccb->cts; 742 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 743 cts->ccb_h.target_id, 744 cts->ccb_h.target_lun, 745 SIM_CHANNEL(ahc, sim), 746 ROLE_UNKNOWN); 747 tinfo = ahc_fetch_transinfo(ahc, devinfo.channel, 748 devinfo.our_scsiid, 749 devinfo.target, &tstate); 750 update_type = 0; 751 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 752 update_type |= AHC_TRANS_GOAL; 753 discenable = &tstate->discenable; 754 tagenable = &tstate->tagenable; 755 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 756 update_type |= AHC_TRANS_USER; 757 discenable = &ahc->user_discenable; 758 tagenable = &ahc->user_tagenable; 759 } else { 760 ccb->ccb_h.status = CAM_REQ_INVALID; 761 xpt_done(ccb); 762 break; 763 } 764 765 ahc_lock(ahc, &s); 766 767 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 768 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) 769 *discenable |= devinfo.target_mask; 770 else 771 *discenable &= ~devinfo.target_mask; 772 } 773 774 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 775 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) 776 *tagenable |= devinfo.target_mask; 777 else 778 *tagenable &= ~devinfo.target_mask; 779 } 780 781 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { 782 ahc_validate_width(ahc, /*tinfo limit*/NULL, 783 &cts->bus_width, ROLE_UNKNOWN); 784 ahc_set_width(ahc, &devinfo, cts->bus_width, 785 update_type, /*paused*/FALSE); 786 } 787 788 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) { 789 if (update_type == AHC_TRANS_USER) 790 cts->sync_offset = tinfo->user.offset; 791 else 792 cts->sync_offset = tinfo->goal.offset; 793 } 794 795 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) { 796 if (update_type == AHC_TRANS_USER) 797 cts->sync_period = tinfo->user.period; 798 else 799 cts->sync_period = tinfo->goal.period; 800 } 801 802 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) 803 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0)) { 804 struct ahc_syncrate *syncrate; 805 u_int ppr_options; 806 u_int maxsync; 807 808 if ((ahc->features & AHC_ULTRA2) != 0) 809 maxsync = AHC_SYNCRATE_DT; 810 else if ((ahc->features & AHC_ULTRA) != 0) 811 maxsync = AHC_SYNCRATE_ULTRA; 812 else 813 maxsync = AHC_SYNCRATE_FAST; 814 815 ppr_options = 0; 816 if (cts->sync_period <= 9 817 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT) 818 ppr_options = MSG_EXT_PPR_DT_REQ; 819 820 syncrate = ahc_find_syncrate(ahc, &cts->sync_period, 821 &ppr_options, 822 maxsync); 823 ahc_validate_offset(ahc, /*tinfo limit*/NULL, 824 syncrate, &cts->sync_offset, 825 MSG_EXT_WDTR_BUS_8_BIT, 826 ROLE_UNKNOWN); 827 828 /* We use a period of 0 to represent async */ 829 if (cts->sync_offset == 0) { 830 cts->sync_period = 0; 831 ppr_options = 0; 832 } 833 834 if (ppr_options == MSG_EXT_PPR_DT_REQ 835 && tinfo->user.transport_version >= 3) { 836 tinfo->goal.transport_version = 837 tinfo->user.transport_version; 838 tinfo->curr.transport_version = 839 tinfo->user.transport_version; 840 } 841 842 ahc_set_syncrate(ahc, &devinfo, syncrate, 843 cts->sync_period, cts->sync_offset, 844 ppr_options, update_type, 845 /*paused*/FALSE); 846 } 847 ahc_unlock(ahc, &s); 848 ccb->ccb_h.status = CAM_REQ_CMP; 849 xpt_done(ccb); 850#endif 851 break; 852 } 853 case XPT_GET_TRAN_SETTINGS: 854 /* Get default/user set transfer settings for the target */ 855 { 856 857 ahc_lock(ahc, &s); 858 ahc_get_tran_settings(ahc, SIM_SCSI_ID(ahc, sim), 859 SIM_CHANNEL(ahc, sim), &ccb->cts); 860 ahc_unlock(ahc, &s); 861 xpt_done(ccb); 862 break; 863 } 864 case XPT_CALC_GEOMETRY: 865 { 866 int extended; 867 868 extended = SIM_IS_SCSIBUS_B(ahc, sim) 869 ? ahc->flags & AHC_EXTENDED_TRANS_B 870 : ahc->flags & AHC_EXTENDED_TRANS_A; 871 aic_calc_geometry(&ccb->ccg, extended); 872 xpt_done(ccb); 873 break; 874 } 875 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 876 { 877 int found; 878 879 ahc_lock(ahc, &s); 880 found = ahc_reset_channel(ahc, SIM_CHANNEL(ahc, sim), 881 /*initiate reset*/TRUE); 882 ahc_unlock(ahc, &s); 883 if (bootverbose) { 884 xpt_print_path(SIM_PATH(ahc, sim)); 885 printf("SCSI bus reset delivered. " 886 "%d SCBs aborted.\n", found); 887 } 888 ccb->ccb_h.status = CAM_REQ_CMP; 889 xpt_done(ccb); 890 break; 891 } 892 case XPT_TERM_IO: /* Terminate the I/O process */ 893 /* XXX Implement */ 894 ccb->ccb_h.status = CAM_REQ_INVALID; 895 xpt_done(ccb); 896 break; 897 case XPT_PATH_INQ: /* Path routing inquiry */ 898 { 899 struct ccb_pathinq *cpi = &ccb->cpi; 900 901 cpi->version_num = 1; /* XXX??? */ 902 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 903 if ((ahc->features & AHC_WIDE) != 0) 904 cpi->hba_inquiry |= PI_WIDE_16; 905 if ((ahc->features & AHC_TARGETMODE) != 0) { 906 cpi->target_sprt = PIT_PROCESSOR 907 | PIT_DISCONNECT 908 | PIT_TERM_IO; 909 } else { 910 cpi->target_sprt = 0; 911 } 912 cpi->hba_misc = 0; 913 cpi->hba_eng_cnt = 0; 914 cpi->max_target = (ahc->features & AHC_WIDE) ? 15 : 7; 915 cpi->max_lun = AHC_NUM_LUNS - 1; 916 if (SIM_IS_SCSIBUS_B(ahc, sim)) { 917 cpi->initiator_id = ahc->our_id_b; 918 if ((ahc->flags & AHC_RESET_BUS_B) == 0) 919 cpi->hba_misc |= PIM_NOBUSRESET; 920 } else { 921 cpi->initiator_id = ahc->our_id; 922 if ((ahc->flags & AHC_RESET_BUS_A) == 0) 923 cpi->hba_misc |= PIM_NOBUSRESET; 924 } 925 cpi->bus_id = cam_sim_bus(sim); 926 cpi->base_transfer_speed = 3300; 927 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 928 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 929 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 930 cpi->unit_number = cam_sim_unit(sim); 931#ifdef AHC_NEW_TRAN_SETTINGS 932 cpi->protocol = PROTO_SCSI; 933 cpi->protocol_version = SCSI_REV_2; 934 cpi->transport = XPORT_SPI; 935 cpi->transport_version = 2; 936 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 937 if ((ahc->features & AHC_DT) != 0) { 938 cpi->transport_version = 3; 939 cpi->xport_specific.spi.ppr_options = 940 SID_SPI_CLOCK_DT_ST; 941 } 942#endif 943 cpi->ccb_h.status = CAM_REQ_CMP; 944 xpt_done(ccb); 945 break; 946 } 947 default: 948 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 949 xpt_done(ccb); 950 break; 951 } 952} 953 954static void 955ahc_get_tran_settings(struct ahc_softc *ahc, int our_id, char channel, 956 struct ccb_trans_settings *cts) 957{ 958#ifdef AHC_NEW_TRAN_SETTINGS 959 struct ahc_devinfo devinfo; 960 struct ccb_trans_settings_scsi *scsi; 961 struct ccb_trans_settings_spi *spi; 962 struct ahc_initiator_tinfo *targ_info; 963 struct ahc_tmode_tstate *tstate; 964 struct ahc_transinfo *tinfo; 965 966 scsi = &cts->proto_specific.scsi; 967 spi = &cts->xport_specific.spi; 968 ahc_compile_devinfo(&devinfo, our_id, 969 cts->ccb_h.target_id, 970 cts->ccb_h.target_lun, 971 channel, ROLE_UNKNOWN); 972 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 973 devinfo.our_scsiid, 974 devinfo.target, &tstate); 975 976 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 977 tinfo = &targ_info->curr; 978 else 979 tinfo = &targ_info->user; 980 981 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 982 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 983 if (cts->type == CTS_TYPE_USER_SETTINGS) { 984 if ((ahc->user_discenable & devinfo.target_mask) != 0) 985 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 986 987 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 988 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 989 } else { 990 if ((tstate->discenable & devinfo.target_mask) != 0) 991 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 992 993 if ((tstate->tagenable & devinfo.target_mask) != 0) 994 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 995 } 996 cts->protocol_version = tinfo->protocol_version; 997 cts->transport_version = tinfo->transport_version; 998 999 spi->sync_period = tinfo->period; 1000 spi->sync_offset = tinfo->offset; 1001 spi->bus_width = tinfo->width; 1002 spi->ppr_options = tinfo->ppr_options; 1003 1004 cts->protocol = PROTO_SCSI; 1005 cts->transport = XPORT_SPI; 1006 spi->valid = CTS_SPI_VALID_SYNC_RATE 1007 | CTS_SPI_VALID_SYNC_OFFSET 1008 | CTS_SPI_VALID_BUS_WIDTH 1009 | CTS_SPI_VALID_PPR_OPTIONS; 1010 1011 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 1012 scsi->valid = CTS_SCSI_VALID_TQ; 1013 spi->valid |= CTS_SPI_VALID_DISC; 1014 } else { 1015 scsi->valid = 0; 1016 } 1017 1018 cts->ccb_h.status = CAM_REQ_CMP; 1019#else 1020 struct ahc_devinfo devinfo; 1021 struct ahc_initiator_tinfo *targ_info; 1022 struct ahc_tmode_tstate *tstate; 1023 struct ahc_transinfo *tinfo; 1024 1025 ahc_compile_devinfo(&devinfo, our_id, 1026 cts->ccb_h.target_id, 1027 cts->ccb_h.target_lun, 1028 channel, ROLE_UNKNOWN); 1029 targ_info = ahc_fetch_transinfo(ahc, devinfo.channel, 1030 devinfo.our_scsiid, 1031 devinfo.target, &tstate); 1032 1033 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) 1034 tinfo = &targ_info->curr; 1035 else 1036 tinfo = &targ_info->user; 1037 1038 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB); 1039 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) { 1040 if ((ahc->user_discenable & devinfo.target_mask) != 0) 1041 cts->flags |= CCB_TRANS_DISC_ENB; 1042 1043 if ((ahc->user_tagenable & devinfo.target_mask) != 0) 1044 cts->flags |= CCB_TRANS_TAG_ENB; 1045 } else { 1046 if ((tstate->discenable & devinfo.target_mask) != 0) 1047 cts->flags |= CCB_TRANS_DISC_ENB; 1048 1049 if ((tstate->tagenable & devinfo.target_mask) != 0) 1050 cts->flags |= CCB_TRANS_TAG_ENB; 1051 } 1052 cts->sync_period = tinfo->period; 1053 cts->sync_offset = tinfo->offset; 1054 cts->bus_width = tinfo->width; 1055 1056 cts->valid = CCB_TRANS_SYNC_RATE_VALID 1057 | CCB_TRANS_SYNC_OFFSET_VALID 1058 | CCB_TRANS_BUS_WIDTH_VALID; 1059 1060 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) 1061 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID; 1062 1063 cts->ccb_h.status = CAM_REQ_CMP; 1064#endif 1065} 1066 1067static void 1068ahc_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 1069{ 1070 struct ahc_softc *ahc; 1071 struct cam_sim *sim; 1072 1073 sim = (struct cam_sim *)callback_arg; 1074 ahc = (struct ahc_softc *)cam_sim_softc(sim); 1075 switch (code) { 1076 case AC_LOST_DEVICE: 1077 { 1078 struct ahc_devinfo devinfo; 1079 long s; 1080 1081 ahc_compile_devinfo(&devinfo, SIM_SCSI_ID(ahc, sim), 1082 xpt_path_target_id(path), 1083 xpt_path_lun_id(path), 1084 SIM_CHANNEL(ahc, sim), 1085 ROLE_UNKNOWN); 1086 1087 /* 1088 * Revert to async/narrow transfers 1089 * for the next device. 1090 */ 1091 ahc_lock(ahc, &s); 1092 ahc_set_width(ahc, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 1093 AHC_TRANS_GOAL|AHC_TRANS_CUR, /*paused*/FALSE); 1094 ahc_set_syncrate(ahc, &devinfo, /*syncrate*/NULL, 1095 /*period*/0, /*offset*/0, /*ppr_options*/0, 1096 AHC_TRANS_GOAL|AHC_TRANS_CUR, 1097 /*paused*/FALSE); 1098 ahc_unlock(ahc, &s); 1099 break; 1100 } 1101 default: 1102 break; 1103 } 1104} 1105 1106static void 1107ahc_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 1108 int error) 1109{ 1110 struct scb *scb; 1111 union ccb *ccb; 1112 struct ahc_softc *ahc; 1113 struct ahc_initiator_tinfo *tinfo; 1114 struct ahc_tmode_tstate *tstate; 1115 u_int mask; 1116 long s; 1117 1118 scb = (struct scb *)arg; 1119 ccb = scb->io_ctx; 1120 ahc = scb->ahc_softc; 1121 1122 if (error != 0) { 1123 if (error == EFBIG) 1124 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 1125 else 1126 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 1127 if (nsegments != 0) 1128 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 1129 ahc_lock(ahc, &s); 1130 ahc_free_scb(ahc, scb); 1131 ahc_unlock(ahc, &s); 1132 xpt_done(ccb); 1133 return; 1134 } 1135 if (nsegments != 0) { 1136 struct ahc_dma_seg *sg; 1137 bus_dma_segment_t *end_seg; 1138 bus_dmasync_op_t op; 1139 1140 end_seg = dm_segs + nsegments; 1141 1142 /* Copy the segments into our SG list */ 1143 sg = scb->sg_list; 1144 while (dm_segs < end_seg) { 1145 uint32_t len; 1146 1147 sg->addr = aic_htole32(dm_segs->ds_addr); 1148 len = dm_segs->ds_len 1149 | ((dm_segs->ds_addr >> 8) & 0x7F000000); 1150 sg->len = aic_htole32(len); 1151 sg++; 1152 dm_segs++; 1153 } 1154 1155 /* 1156 * Note where to find the SG entries in bus space. 1157 * We also set the full residual flag which the 1158 * sequencer will clear as soon as a data transfer 1159 * occurs. 1160 */ 1161 scb->hscb->sgptr = aic_htole32(scb->sg_list_phys|SG_FULL_RESID); 1162 1163 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1164 op = BUS_DMASYNC_PREREAD; 1165 else 1166 op = BUS_DMASYNC_PREWRITE; 1167 1168 bus_dmamap_sync(ahc->buffer_dmat, scb->dmamap, op); 1169 1170 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 1171 struct target_data *tdata; 1172 1173 tdata = &scb->hscb->shared_data.tdata; 1174 tdata->target_phases |= DPHASE_PENDING; 1175 /* 1176 * CAM data direction is relative to the initiator. 1177 */ 1178 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1179 tdata->data_phase = P_DATAOUT; 1180 else 1181 tdata->data_phase = P_DATAIN; 1182 1183 /* 1184 * If the transfer is of an odd length and in the 1185 * "in" direction (scsi->HostBus), then it may 1186 * trigger a bug in the 'WideODD' feature of 1187 * non-Ultra2 chips. Force the total data-length 1188 * to be even by adding an extra, 1 byte, SG, 1189 * element. We do this even if we are not currently 1190 * negotiated wide as negotiation could occur before 1191 * this command is executed. 1192 */ 1193 if ((ahc->bugs & AHC_TMODE_WIDEODD_BUG) != 0 1194 && (ccb->csio.dxfer_len & 0x1) != 0 1195 && (ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) { 1196 1197 nsegments++; 1198 if (nsegments > AHC_NSEG) { 1199 1200 aic_set_transaction_status(scb, 1201 CAM_REQ_TOO_BIG); 1202 bus_dmamap_unload(ahc->buffer_dmat, 1203 scb->dmamap); 1204 ahc_lock(ahc, &s); 1205 ahc_free_scb(ahc, scb); 1206 ahc_unlock(ahc, &s); 1207 xpt_done(ccb); 1208 return; 1209 } 1210 sg->addr = aic_htole32(ahc->dma_bug_buf); 1211 sg->len = aic_htole32(1); 1212 sg++; 1213 } 1214 } 1215 sg--; 1216 sg->len |= aic_htole32(AHC_DMA_LAST_SEG); 1217 1218 /* Copy the first SG into the "current" data pointer area */ 1219 scb->hscb->dataptr = scb->sg_list->addr; 1220 scb->hscb->datacnt = scb->sg_list->len; 1221 } else { 1222 scb->hscb->sgptr = aic_htole32(SG_LIST_NULL); 1223 scb->hscb->dataptr = 0; 1224 scb->hscb->datacnt = 0; 1225 } 1226 1227 scb->sg_count = nsegments; 1228 1229 ahc_lock(ahc, &s); 1230 1231 /* 1232 * Last time we need to check if this SCB needs to 1233 * be aborted. 1234 */ 1235 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1236 if (nsegments != 0) 1237 bus_dmamap_unload(ahc->buffer_dmat, scb->dmamap); 1238 ahc_free_scb(ahc, scb); 1239 ahc_unlock(ahc, &s); 1240 xpt_done(ccb); 1241 return; 1242 } 1243 1244 tinfo = ahc_fetch_transinfo(ahc, SCSIID_CHANNEL(ahc, scb->hscb->scsiid), 1245 SCSIID_OUR_ID(scb->hscb->scsiid), 1246 SCSIID_TARGET(ahc, scb->hscb->scsiid), 1247 &tstate); 1248 1249 mask = SCB_GET_TARGET_MASK(ahc, scb); 1250 scb->hscb->scsirate = tinfo->scsirate; 1251 scb->hscb->scsioffset = tinfo->curr.offset; 1252 if ((tstate->ultraenb & mask) != 0) 1253 scb->hscb->control |= ULTRAENB; 1254 1255 if ((tstate->discenable & mask) != 0 1256 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1257 scb->hscb->control |= DISCENB; 1258 1259 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1260 && (tinfo->goal.width != 0 1261 || tinfo->goal.offset != 0 1262 || tinfo->goal.ppr_options != 0)) { 1263 scb->flags |= SCB_NEGOTIATE; 1264 scb->hscb->control |= MK_MESSAGE; 1265 } else if ((tstate->auto_negotiate & mask) != 0) { 1266 scb->flags |= SCB_AUTO_NEGOTIATE; 1267 scb->hscb->control |= MK_MESSAGE; 1268 } 1269 1270 LIST_INSERT_HEAD(&ahc->pending_scbs, scb, pending_links); 1271 1272 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1273 1274 /* 1275 * We only allow one untagged transaction 1276 * per target in the initiator role unless 1277 * we are storing a full busy target *lun* 1278 * table in SCB space. 1279 */ 1280 if ((scb->hscb->control & (TARGET_SCB|TAG_ENB)) == 0 1281 && (ahc->flags & AHC_SCB_BTT) == 0) { 1282 struct scb_tailq *untagged_q; 1283 int target_offset; 1284 1285 target_offset = SCB_GET_TARGET_OFFSET(ahc, scb); 1286 untagged_q = &(ahc->untagged_queues[target_offset]); 1287 TAILQ_INSERT_TAIL(untagged_q, scb, links.tqe); 1288 scb->flags |= SCB_UNTAGGEDQ; 1289 if (TAILQ_FIRST(untagged_q) != scb) { 1290 ahc_unlock(ahc, &s); 1291 return; 1292 } 1293 } 1294 scb->flags |= SCB_ACTIVE; 1295 1296 /* 1297 * Timers are disabled while recovery is in progress. 1298 */ 1299 aic_scb_timer_start(scb); 1300 1301 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1302 /* Define a mapping from our tag to the SCB. */ 1303 ahc->scb_data->scbindex[scb->hscb->tag] = scb; 1304 ahc_pause(ahc); 1305 if ((ahc->flags & AHC_PAGESCBS) == 0) 1306 ahc_outb(ahc, SCBPTR, scb->hscb->tag); 1307 ahc_outb(ahc, TARG_IMMEDIATE_SCB, scb->hscb->tag); 1308 ahc_unpause(ahc); 1309 } else { 1310 ahc_queue_scb(ahc, scb); 1311 } 1312 1313 ahc_unlock(ahc, &s); 1314} 1315 1316static void 1317ahc_poll(struct cam_sim *sim) 1318{ 1319 struct ahc_softc *ahc; 1320 1321 ahc = (struct ahc_softc *)cam_sim_softc(sim); 1322 ahc_intr(ahc); 1323} 1324 1325static void 1326ahc_setup_data(struct ahc_softc *ahc, struct cam_sim *sim, 1327 struct ccb_scsiio *csio, struct scb *scb) 1328{ 1329 struct hardware_scb *hscb; 1330 struct ccb_hdr *ccb_h; 1331 1332 hscb = scb->hscb; 1333 ccb_h = &csio->ccb_h; 1334 1335 csio->resid = 0; 1336 csio->sense_resid = 0; 1337 if (ccb_h->func_code == XPT_SCSI_IO) { 1338 hscb->cdb_len = csio->cdb_len; 1339 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1340 1341 if (hscb->cdb_len > sizeof(hscb->cdb32) 1342 || (ccb_h->flags & CAM_CDB_PHYS) != 0) { 1343 u_long s; 1344 1345 aic_set_transaction_status(scb, 1346 CAM_REQ_INVALID); 1347 ahc_lock(ahc, &s); 1348 ahc_free_scb(ahc, scb); 1349 ahc_unlock(ahc, &s); 1350 xpt_done((union ccb *)csio); 1351 return; 1352 } 1353 if (hscb->cdb_len > 12) { 1354 memcpy(hscb->cdb32, 1355 csio->cdb_io.cdb_ptr, 1356 hscb->cdb_len); 1357 scb->flags |= SCB_CDB32_PTR; 1358 } else { 1359 memcpy(hscb->shared_data.cdb, 1360 csio->cdb_io.cdb_ptr, 1361 hscb->cdb_len); 1362 } 1363 } else { 1364 if (hscb->cdb_len > 12) { 1365 memcpy(hscb->cdb32, csio->cdb_io.cdb_bytes, 1366 hscb->cdb_len); 1367 scb->flags |= SCB_CDB32_PTR; 1368 } else { 1369 memcpy(hscb->shared_data.cdb, 1370 csio->cdb_io.cdb_bytes, 1371 hscb->cdb_len); 1372 } 1373 } 1374 } 1375 1376 /* Only use S/G if there is a transfer */ 1377 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1378 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1379 /* We've been given a pointer to a single buffer */ 1380 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1381 int s; 1382 int error; 1383 1384 s = splsoftvm(); 1385 error = bus_dmamap_load(ahc->buffer_dmat, 1386 scb->dmamap, 1387 csio->data_ptr, 1388 csio->dxfer_len, 1389 ahc_execute_scb, 1390 scb, /*flags*/0); 1391 if (error == EINPROGRESS) { 1392 /* 1393 * So as to maintain ordering, 1394 * freeze the controller queue 1395 * until our mapping is 1396 * returned. 1397 */ 1398 xpt_freeze_simq(sim, 1399 /*count*/1); 1400 scb->io_ctx->ccb_h.status |= 1401 CAM_RELEASE_SIMQ; 1402 } 1403 splx(s); 1404 } else { 1405 struct bus_dma_segment seg; 1406 1407 /* Pointer to physical buffer */ 1408 if (csio->dxfer_len > AHC_MAXTRANSFER_SIZE) 1409 panic("ahc_setup_data - Transfer size " 1410 "larger than can device max"); 1411 1412 seg.ds_addr = 1413 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1414 seg.ds_len = csio->dxfer_len; 1415 ahc_execute_scb(scb, &seg, 1, 0); 1416 } 1417 } else { 1418 struct bus_dma_segment *segs; 1419 1420 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1421 panic("ahc_setup_data - Physical segment " 1422 "pointers unsupported"); 1423 1424 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1425 panic("ahc_setup_data - Virtual segment " 1426 "addresses unsupported"); 1427 1428 /* Just use the segments provided */ 1429 segs = (struct bus_dma_segment *)csio->data_ptr; 1430 ahc_execute_scb(scb, segs, csio->sglist_cnt, 0); 1431 } 1432 } else { 1433 ahc_execute_scb(scb, NULL, 0, 0); 1434 } 1435} 1436 1437static void 1438ahc_abort_ccb(struct ahc_softc *ahc, struct cam_sim *sim, union ccb *ccb) 1439{ 1440 union ccb *abort_ccb; 1441 1442 abort_ccb = ccb->cab.abort_ccb; 1443 switch (abort_ccb->ccb_h.func_code) { 1444 case XPT_ACCEPT_TARGET_IO: 1445 case XPT_IMMED_NOTIFY: 1446 case XPT_CONT_TARGET_IO: 1447 { 1448 struct ahc_tmode_tstate *tstate; 1449 struct ahc_tmode_lstate *lstate; 1450 struct ccb_hdr_slist *list; 1451 cam_status status; 1452 1453 status = ahc_find_tmode_devs(ahc, sim, abort_ccb, &tstate, 1454 &lstate, TRUE); 1455 1456 if (status != CAM_REQ_CMP) { 1457 ccb->ccb_h.status = status; 1458 break; 1459 } 1460 1461 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1462 list = &lstate->accept_tios; 1463 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1464 list = &lstate->immed_notifies; 1465 else 1466 list = NULL; 1467 1468 if (list != NULL) { 1469 struct ccb_hdr *curelm; 1470 int found; 1471 1472 curelm = SLIST_FIRST(list); 1473 found = 0; 1474 if (curelm == &abort_ccb->ccb_h) { 1475 found = 1; 1476 SLIST_REMOVE_HEAD(list, sim_links.sle); 1477 } else { 1478 while(curelm != NULL) { 1479 struct ccb_hdr *nextelm; 1480 1481 nextelm = 1482 SLIST_NEXT(curelm, sim_links.sle); 1483 1484 if (nextelm == &abort_ccb->ccb_h) { 1485 found = 1; 1486 SLIST_NEXT(curelm, 1487 sim_links.sle) = 1488 SLIST_NEXT(nextelm, 1489 sim_links.sle); 1490 break; 1491 } 1492 curelm = nextelm; 1493 } 1494 } 1495 1496 if (found) { 1497 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1498 xpt_done(abort_ccb); 1499 ccb->ccb_h.status = CAM_REQ_CMP; 1500 } else { 1501 xpt_print_path(abort_ccb->ccb_h.path); 1502 printf("Not found\n"); 1503 ccb->ccb_h.status = CAM_PATH_INVALID; 1504 } 1505 break; 1506 } 1507 /* FALLTHROUGH */ 1508 } 1509 case XPT_SCSI_IO: 1510 /* XXX Fully implement the hard ones */ 1511 ccb->ccb_h.status = CAM_UA_ABORT; 1512 break; 1513 default: 1514 ccb->ccb_h.status = CAM_REQ_INVALID; 1515 break; 1516 } 1517 xpt_done(ccb); 1518} 1519 1520void 1521ahc_send_async(struct ahc_softc *ahc, char channel, u_int target, 1522 u_int lun, ac_code code, void *opt_arg) 1523{ 1524 struct ccb_trans_settings cts; 1525 struct cam_path *path; 1526 void *arg; 1527 int error; 1528 1529 arg = NULL; 1530 error = ahc_create_path(ahc, channel, target, lun, &path); 1531 1532 if (error != CAM_REQ_CMP) 1533 return; 1534 1535 switch (code) { 1536 case AC_TRANSFER_NEG: 1537 { 1538#ifdef AHC_NEW_TRAN_SETTINGS 1539 struct ccb_trans_settings_scsi *scsi; 1540 1541 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1542 scsi = &cts.proto_specific.scsi; 1543#else 1544 cts.flags = CCB_TRANS_CURRENT_SETTINGS; 1545#endif 1546 cts.ccb_h.path = path; 1547 cts.ccb_h.target_id = target; 1548 cts.ccb_h.target_lun = lun; 1549 ahc_get_tran_settings(ahc, channel == 'A' ? ahc->our_id 1550 : ahc->our_id_b, 1551 channel, &cts); 1552 arg = &cts; 1553#ifdef AHC_NEW_TRAN_SETTINGS 1554 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1555 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1556#else 1557 cts.valid &= ~CCB_TRANS_TQ_VALID; 1558 cts.flags &= ~CCB_TRANS_TAG_ENB; 1559#endif 1560 if (opt_arg == NULL) 1561 break; 1562 if (*((ahc_queue_alg *)opt_arg) == AHC_QUEUE_TAGGED) 1563#ifdef AHC_NEW_TRAN_SETTINGS 1564 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1565 scsi->valid |= CTS_SCSI_VALID_TQ; 1566#else 1567 cts.flags |= CCB_TRANS_TAG_ENB; 1568 cts.valid |= CCB_TRANS_TQ_VALID; 1569#endif 1570 break; 1571 } 1572 case AC_SENT_BDR: 1573 case AC_BUS_RESET: 1574 break; 1575 default: 1576 panic("ahc_send_async: Unexpected async event"); 1577 } 1578 xpt_async(code, path, arg); 1579 xpt_free_path(path); 1580} 1581 1582void 1583ahc_platform_set_tags(struct ahc_softc *ahc, 1584 struct ahc_devinfo *devinfo, int enable) 1585{ 1586} 1587 1588int 1589ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg) 1590{ 1591 ahc->platform_data = malloc(sizeof(struct ahc_platform_data), M_DEVBUF, 1592 M_NOWAIT | M_ZERO); 1593 if (ahc->platform_data == NULL) 1594 return (ENOMEM); 1595 return (0); 1596} 1597 1598void 1599ahc_platform_free(struct ahc_softc *ahc) 1600{ 1601 struct ahc_platform_data *pdata; 1602 1603 pdata = ahc->platform_data; 1604 if (pdata != NULL) { 1605 if (pdata->regs != NULL) 1606 bus_release_resource(ahc->dev_softc, 1607 pdata->regs_res_type, 1608 pdata->regs_res_id, 1609 pdata->regs); 1610 1611 if (pdata->irq != NULL) 1612 bus_release_resource(ahc->dev_softc, 1613 pdata->irq_res_type, 1614 0, pdata->irq); 1615 1616 if (pdata->sim_b != NULL) { 1617 xpt_async(AC_LOST_DEVICE, pdata->path_b, NULL); 1618 xpt_free_path(pdata->path_b); 1619 xpt_bus_deregister(cam_sim_path(pdata->sim_b)); 1620 cam_sim_free(pdata->sim_b, /*free_devq*/TRUE); 1621 } 1622 if (pdata->sim != NULL) { 1623 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1624 xpt_free_path(pdata->path); 1625 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1626 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1627 } 1628 if (pdata->eh != NULL) 1629 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1630 free(ahc->platform_data, M_DEVBUF); 1631 } 1632} 1633 1634int 1635ahc_softc_comp(struct ahc_softc *lahc, struct ahc_softc *rahc) 1636{ 1637 /* We don't sort softcs under FreeBSD so report equal always */ 1638 return (0); 1639} 1640 1641int 1642ahc_detach(device_t dev) 1643{ 1644 struct ahc_softc *ahc; 1645 u_long l; 1646 u_long s; 1647 1648 ahc_list_lock(&l); 1649 device_printf(dev, "detaching device\n"); 1650 ahc = device_get_softc(dev); 1651 ahc = ahc_find_softc(ahc); 1652 if (ahc == NULL) { 1653 device_printf(dev, "aic7xxx already detached\n"); 1654 ahc_list_unlock(&l); 1655 return (ENOENT); 1656 } 1657 TAILQ_REMOVE(&ahc_tailq, ahc, links); 1658 ahc_list_unlock(&l); 1659 ahc_lock(ahc, &s); 1660 ahc_intr_enable(ahc, FALSE); 1661 bus_teardown_intr(dev, ahc->platform_data->irq, ahc->platform_data->ih); 1662 ahc_unlock(ahc, &s); 1663 ahc_free(ahc); 1664 return (0); 1665} 1666 1667#if UNUSED 1668static void 1669ahc_dump_targcmd(struct target_cmd *cmd) 1670{ 1671 uint8_t *byte; 1672 uint8_t *last_byte; 1673 int i; 1674 1675 byte = &cmd->initiator_channel; 1676 /* Debugging info for received commands */ 1677 last_byte = &cmd[1].initiator_channel; 1678 1679 i = 0; 1680 while (byte < last_byte) { 1681 if (i == 0) 1682 printf("\t"); 1683 printf("%#x", *byte++); 1684 i++; 1685 if (i == 8) { 1686 printf("\n"); 1687 i = 0; 1688 } else { 1689 printf(", "); 1690 } 1691 } 1692} 1693#endif 1694 1695static int 1696ahc_modevent(module_t mod, int type, void *data) 1697{ 1698 /* XXX Deal with busy status on unload. */ 1699 /* XXX Deal with unknown events */ 1700 return 0; 1701} 1702 1703static moduledata_t ahc_mod = { 1704 "ahc", 1705 ahc_modevent, 1706 NULL 1707}; 1708 1709DECLARE_MODULE(ahc, ahc_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1710MODULE_DEPEND(ahc, cam, 1, 1, 1); 1711MODULE_VERSION(ahc, 1); 1712