aic79xx_osm.c revision 132199
1/* 2 * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers 3 * 4 * Copyright (c) 1994-2002 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: head/sys/dev/aic7xxx/aic79xx_osm.c 132199 2004-07-15 08:26:07Z phk $"); 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 UNUSED 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 int 81ahd_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 91int 92ahd_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, ahd_platform_intr, ahd, 99 &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 */ 109int 110ahd_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 long s; 118 int count; 119 120 count = 0; 121 devq = NULL; 122 sim = NULL; 123 124 /* 125 * Create a thread to perform all recovery. 126 */ 127 if (ahd_spawn_recovery_thread(ahd) != 0) 128 goto fail; 129 130 ahd_controller_info(ahd, ahd_info); 131 printf("%s\n", ahd_info); 132 ahd_lock(ahd, &s); 133 134 /* 135 * Create the device queue for our SIM(s). 136 */ 137 devq = cam_simq_alloc(AHD_MAX_QUEUE); 138 if (devq == NULL) 139 goto fail; 140 141 /* 142 * Construct our SIM entry 143 */ 144 sim = cam_sim_alloc(ahd_action, ahd_poll, "ahd", ahd, 145 device_get_unit(ahd->dev_softc), 146 1, /*XXX*/256, devq); 147 if (sim == NULL) { 148 cam_simq_free(devq); 149 goto fail; 150 } 151 152 if (xpt_bus_register(sim, /*bus_id*/0) != CAM_SUCCESS) { 153 cam_sim_free(sim, /*free_devq*/TRUE); 154 sim = NULL; 155 goto fail; 156 } 157 158 if (xpt_create_path(&path, /*periph*/NULL, 159 cam_sim_path(sim), CAM_TARGET_WILDCARD, 160 CAM_LUN_WILDCARD) != CAM_REQ_CMP) { 161 xpt_bus_deregister(cam_sim_path(sim)); 162 cam_sim_free(sim, /*free_devq*/TRUE); 163 sim = NULL; 164 goto fail; 165 } 166 167 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 168 csa.ccb_h.func_code = XPT_SASYNC_CB; 169 csa.event_enable = AC_LOST_DEVICE; 170 csa.callback = ahd_async; 171 csa.callback_arg = sim; 172 xpt_action((union ccb *)&csa); 173 count++; 174 175fail: 176 ahd->platform_data->sim = sim; 177 ahd->platform_data->path = path; 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 ahd_unlock(ahd, &s); 187 188 return (count); 189} 190 191/* 192 * Catch an interrupt from the adapter 193 */ 194void 195ahd_platform_intr(void *arg) 196{ 197 struct ahd_softc *ahd; 198 199 ahd = (struct ahd_softc *)arg; 200 ahd_intr(ahd); 201} 202 203/* 204 * We have an scb which has been processed by the 205 * adaptor, now we look to see how the operation 206 * went. 207 */ 208void 209ahd_done(struct ahd_softc *ahd, struct scb *scb) 210{ 211 union ccb *ccb; 212 213 CAM_DEBUG(scb->io_ctx->ccb_h.path, CAM_DEBUG_TRACE, 214 ("ahd_done - scb %d\n", SCB_GET_TAG(scb))); 215 216 ccb = scb->io_ctx; 217 LIST_REMOVE(scb, pending_links); 218 if ((scb->flags & SCB_TIMEDOUT) != 0) 219 LIST_REMOVE(scb, timedout_links); 220 221 untimeout(ahd_platform_timeout, (caddr_t)scb, ccb->ccb_h.timeout_ch); 222 223 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 224 bus_dmasync_op_t op; 225 226 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 227 op = BUS_DMASYNC_POSTREAD; 228 else 229 op = BUS_DMASYNC_POSTWRITE; 230 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 231 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 232 } 233 234#ifdef AHD_TARGET_MODE 235 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 236 struct cam_path *ccb_path; 237 238 /* 239 * If we have finally disconnected, clean up our 240 * pending device state. 241 * XXX - There may be error states that cause where 242 * we will remain connected. 243 */ 244 ccb_path = ccb->ccb_h.path; 245 if (ahd->pending_device != NULL 246 && xpt_path_comp(ahd->pending_device->path, ccb_path) == 0) { 247 248 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 249 ahd->pending_device = NULL; 250 } else { 251 xpt_print_path(ccb->ccb_h.path); 252 printf("Still disconnected\n"); 253 ahd_freeze_ccb(ccb); 254 } 255 } 256 257 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) 258 ccb->ccb_h.status |= CAM_REQ_CMP; 259 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 260 ahd_free_scb(ahd, scb); 261 xpt_done(ccb); 262 return; 263 } 264#endif 265 266 /* 267 * If the recovery SCB completes, we have to be 268 * out of our timeout. 269 */ 270 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 271 struct scb *list_scb; 272 273 /* 274 * We were able to complete the command successfully, 275 * so reinstate the timeouts for all other pending 276 * commands. 277 */ 278 LIST_FOREACH(list_scb, &ahd->pending_scbs, pending_links) { 279 union ccb *ccb; 280 uint64_t time; 281 282 ccb = list_scb->io_ctx; 283 if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) 284 continue; 285 286 time = ccb->ccb_h.timeout; 287 time *= hz; 288 time /= 1000; 289 ccb->ccb_h.timeout_ch = 290 timeout(ahd_platform_timeout, list_scb, time); 291 } 292 293 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 294 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 295 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 296 297 ahd_print_path(ahd, scb); 298 printf("no longer in timeout, status = %x\n", 299 ccb->ccb_h.status); 300 } 301 302 /* Don't clobber any existing error state */ 303 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 304 ccb->ccb_h.status |= CAM_REQ_CMP; 305 } else if ((scb->flags & SCB_SENSE) != 0) { 306 /* 307 * We performed autosense retrieval. 308 * 309 * Zero any sense not transferred by the 310 * device. The SCSI spec mandates that any 311 * untransfered data should be assumed to be 312 * zero. Complete the 'bounce' of sense information 313 * through buffers accessible via bus-space by 314 * copying it into the clients csio. 315 */ 316 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 317 memcpy(&ccb->csio.sense_data, 318 ahd_get_sense_buf(ahd, scb), 319/* XXX What size do we want to use??? */ 320 sizeof(ccb->csio.sense_data) 321 - ccb->csio.sense_resid); 322 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 323 } else if ((scb->flags & SCB_PKT_SENSE) != 0) { 324 struct scsi_status_iu_header *siu; 325 u_int sense_len; 326 int i; 327 328 /* 329 * Copy only the sense data into the provided buffer. 330 */ 331 siu = (struct scsi_status_iu_header *)scb->sense_data; 332 sense_len = MIN(scsi_4btoul(siu->sense_length), 333 sizeof(ccb->csio.sense_data)); 334 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 335 memcpy(&ccb->csio.sense_data, 336 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu), 337 sense_len); 338 printf("Copied %d bytes of sense data offset %d:", sense_len, 339 SIU_SENSE_OFFSET(siu)); 340 for (i = 0; i < sense_len; i++) 341 printf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]); 342 printf("\n"); 343 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 344 } 345 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 346 ahd_free_scb(ahd, scb); 347 xpt_done(ccb); 348} 349 350static void 351ahd_action(struct cam_sim *sim, union ccb *ccb) 352{ 353 struct ahd_softc *ahd; 354#ifdef AHD_TARGET_MODE 355 struct ahd_tmode_lstate *lstate; 356#endif 357 u_int target_id; 358 u_int our_id; 359 long s; 360 361 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n")); 362 363 ahd = (struct ahd_softc *)cam_sim_softc(sim); 364 365 target_id = ccb->ccb_h.target_id; 366 our_id = SIM_SCSI_ID(ahd, sim); 367 368 switch (ccb->ccb_h.func_code) { 369 /* Common cases first */ 370#ifdef AHD_TARGET_MODE 371 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 372 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 373 { 374 struct ahd_tmode_tstate *tstate; 375 cam_status status; 376 377 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 378 &lstate, TRUE); 379 380 if (status != CAM_REQ_CMP) { 381 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 382 /* Response from the black hole device */ 383 tstate = NULL; 384 lstate = ahd->black_hole; 385 } else { 386 ccb->ccb_h.status = status; 387 xpt_done(ccb); 388 break; 389 } 390 } 391 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 392 393 ahd_lock(ahd, &s); 394 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 395 sim_links.sle); 396 ccb->ccb_h.status = CAM_REQ_INPROG; 397 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0) 398 ahd_run_tqinfifo(ahd, /*paused*/FALSE); 399 ahd_unlock(ahd, &s); 400 break; 401 } 402 403 /* 404 * The target_id represents the target we attempt to 405 * select. In target mode, this is the initiator of 406 * the original command. 407 */ 408 our_id = target_id; 409 target_id = ccb->csio.init_id; 410 /* FALLTHROUGH */ 411 } 412#endif 413 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 414 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 415 { 416 struct scb *scb; 417 struct hardware_scb *hscb; 418 struct ahd_initiator_tinfo *tinfo; 419 struct ahd_tmode_tstate *tstate; 420 u_int col_idx; 421 422 if ((ahd->flags & AHD_INITIATORROLE) == 0 423 && (ccb->ccb_h.func_code == XPT_SCSI_IO 424 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 425 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 426 xpt_done(ccb); 427 return; 428 } 429 430 /* 431 * get an scb to use. 432 */ 433 ahd_lock(ahd, &s); 434 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, 435 target_id, &tstate); 436 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0 437 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0 438 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 439 col_idx = AHD_NEVER_COL_IDX; 440 } else { 441 col_idx = AHD_BUILD_COL_IDX(target_id, 442 ccb->ccb_h.target_lun); 443 } 444 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 445 446 xpt_freeze_simq(sim, /*count*/1); 447 ahd->flags |= AHD_RESOURCE_SHORTAGE; 448 ahd_unlock(ahd, &s); 449 ccb->ccb_h.status = CAM_REQUEUE_REQ; 450 xpt_done(ccb); 451 return; 452 } 453 ahd_unlock(ahd, &s); 454 455 hscb = scb->hscb; 456 457 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 458 ("start scb(%p)\n", scb)); 459 scb->io_ctx = ccb; 460 /* 461 * So we can find the SCB when an abort is requested 462 */ 463 ccb->ccb_h.ccb_scb_ptr = scb; 464 465 /* 466 * Put all the arguments for the xfer in the scb 467 */ 468 hscb->control = 0; 469 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 470 hscb->lun = ccb->ccb_h.target_lun; 471 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 472 hscb->cdb_len = 0; 473 scb->flags |= SCB_DEVICE_RESET; 474 hscb->control |= MK_MESSAGE; 475 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 476 ahd_execute_scb(scb, NULL, 0, 0); 477 } else { 478#ifdef AHD_TARGET_MODE 479 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 480 struct target_data *tdata; 481 482 tdata = &hscb->shared_data.tdata; 483 if (ahd->pending_device == lstate) 484 scb->flags |= SCB_TARGET_IMMEDIATE; 485 hscb->control |= TARGET_SCB; 486 tdata->target_phases = 0; 487 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 488 tdata->target_phases |= SPHASE_PENDING; 489 tdata->scsi_status = 490 ccb->csio.scsi_status; 491 } 492 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 493 tdata->target_phases |= NO_DISCONNECT; 494 495 tdata->initiator_tag = 496 ahd_htole16(ccb->csio.tag_id); 497 } 498#endif 499 hscb->task_management = 0; 500 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 501 hscb->control |= ccb->csio.tag_action; 502 503 ahd_setup_data(ahd, sim, &ccb->csio, scb); 504 } 505 break; 506 } 507#ifdef AHD_TARGET_MODE 508 case XPT_NOTIFY_ACK: 509 case XPT_IMMED_NOTIFY: 510 { 511 struct ahd_tmode_tstate *tstate; 512 struct ahd_tmode_lstate *lstate; 513 cam_status status; 514 515 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 516 &lstate, TRUE); 517 518 if (status != CAM_REQ_CMP) { 519 ccb->ccb_h.status = status; 520 xpt_done(ccb); 521 break; 522 } 523 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 524 sim_links.sle); 525 ccb->ccb_h.status = CAM_REQ_INPROG; 526 ahd_send_lstate_events(ahd, lstate); 527 break; 528 } 529 case XPT_EN_LUN: /* Enable LUN as a target */ 530 ahd_handle_en_lun(ahd, sim, ccb); 531 xpt_done(ccb); 532 break; 533#endif 534 case XPT_ABORT: /* Abort the specified CCB */ 535 { 536 ahd_abort_ccb(ahd, sim, ccb); 537 break; 538 } 539 case XPT_SET_TRAN_SETTINGS: 540 { 541 ahd_lock(ahd, &s); 542 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 543 SIM_CHANNEL(ahd, sim), &ccb->cts); 544 ahd_unlock(ahd, &s); 545 xpt_done(ccb); 546 break; 547 } 548 case XPT_GET_TRAN_SETTINGS: 549 /* Get default/user set transfer settings for the target */ 550 { 551 ahd_lock(ahd, &s); 552 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 553 SIM_CHANNEL(ahd, sim), &ccb->cts); 554 ahd_unlock(ahd, &s); 555 xpt_done(ccb); 556 break; 557 } 558 case XPT_CALC_GEOMETRY: 559 { 560 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A); 561 xpt_done(ccb); 562 break; 563 } 564 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 565 { 566 int found; 567 568 ahd_lock(ahd, &s); 569 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 570 /*initiate reset*/TRUE); 571 ahd_unlock(ahd, &s); 572 if (bootverbose) { 573 xpt_print_path(SIM_PATH(ahd, sim)); 574 printf("SCSI bus reset delivered. " 575 "%d SCBs aborted.\n", found); 576 } 577 ccb->ccb_h.status = CAM_REQ_CMP; 578 xpt_done(ccb); 579 break; 580 } 581 case XPT_TERM_IO: /* Terminate the I/O process */ 582 /* XXX Implement */ 583 ccb->ccb_h.status = CAM_REQ_INVALID; 584 xpt_done(ccb); 585 break; 586 case XPT_PATH_INQ: /* Path routing inquiry */ 587 { 588 struct ccb_pathinq *cpi = &ccb->cpi; 589 590 cpi->version_num = 1; /* XXX??? */ 591 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 592 if ((ahd->features & AHD_WIDE) != 0) 593 cpi->hba_inquiry |= PI_WIDE_16; 594 if ((ahd->features & AHD_TARGETMODE) != 0) { 595 cpi->target_sprt = PIT_PROCESSOR 596 | PIT_DISCONNECT 597 | PIT_TERM_IO; 598 } else { 599 cpi->target_sprt = 0; 600 } 601 cpi->hba_misc = 0; 602 cpi->hba_eng_cnt = 0; 603 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7; 604 cpi->max_lun = AHD_NUM_LUNS - 1; 605 cpi->initiator_id = ahd->our_id; 606 if ((ahd->flags & AHD_RESET_BUS_A) == 0) { 607 cpi->hba_misc |= PIM_NOBUSRESET; 608 } 609 cpi->bus_id = cam_sim_bus(sim); 610 cpi->base_transfer_speed = 3300; 611 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 612 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 613 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 614 cpi->unit_number = cam_sim_unit(sim); 615#ifdef AHD_NEW_TRAN_SETTINGS 616 cpi->protocol = PROTO_SCSI; 617 cpi->protocol_version = SCSI_REV_2; 618 cpi->transport = XPORT_SPI; 619 cpi->transport_version = 2; 620 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 621 cpi->transport_version = 4; 622 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST; 623#endif 624 cpi->ccb_h.status = CAM_REQ_CMP; 625 xpt_done(ccb); 626 break; 627 } 628 default: 629 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 630 xpt_done(ccb); 631 break; 632 } 633} 634 635 636static void 637ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 638 struct ccb_trans_settings *cts) 639{ 640#ifdef AHD_NEW_TRAN_SETTINGS 641 struct ahd_devinfo devinfo; 642 struct ccb_trans_settings_scsi *scsi; 643 struct ccb_trans_settings_spi *spi; 644 struct ahd_initiator_tinfo *tinfo; 645 struct ahd_tmode_tstate *tstate; 646 uint16_t *discenable; 647 uint16_t *tagenable; 648 u_int update_type; 649 650 scsi = &cts->proto_specific.scsi; 651 spi = &cts->xport_specific.spi; 652 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 653 cts->ccb_h.target_id, 654 cts->ccb_h.target_lun, 655 SIM_CHANNEL(ahd, sim), 656 ROLE_UNKNOWN); 657 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 658 devinfo.our_scsiid, 659 devinfo.target, &tstate); 660 update_type = 0; 661 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 662 update_type |= AHD_TRANS_GOAL; 663 discenable = &tstate->discenable; 664 tagenable = &tstate->tagenable; 665 tinfo->curr.protocol_version = cts->protocol_version; 666 tinfo->curr.transport_version = cts->transport_version; 667 tinfo->goal.protocol_version = cts->protocol_version; 668 tinfo->goal.transport_version = cts->transport_version; 669 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 670 update_type |= AHD_TRANS_USER; 671 discenable = &ahd->user_discenable; 672 tagenable = &ahd->user_tagenable; 673 tinfo->user.protocol_version = cts->protocol_version; 674 tinfo->user.transport_version = cts->transport_version; 675 } else { 676 cts->ccb_h.status = CAM_REQ_INVALID; 677 return; 678 } 679 680 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 681 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 682 *discenable |= devinfo.target_mask; 683 else 684 *discenable &= ~devinfo.target_mask; 685 } 686 687 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 688 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 689 *tagenable |= devinfo.target_mask; 690 else 691 *tagenable &= ~devinfo.target_mask; 692 } 693 694 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 695 ahd_validate_width(ahd, /*tinfo limit*/NULL, 696 &spi->bus_width, ROLE_UNKNOWN); 697 ahd_set_width(ahd, &devinfo, spi->bus_width, 698 update_type, /*paused*/FALSE); 699 } 700 701 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 702 if (update_type == AHD_TRANS_USER) 703 spi->ppr_options = tinfo->user.ppr_options; 704 else 705 spi->ppr_options = tinfo->goal.ppr_options; 706 } 707 708 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 709 if (update_type == AHD_TRANS_USER) 710 spi->sync_offset = tinfo->user.offset; 711 else 712 spi->sync_offset = tinfo->goal.offset; 713 } 714 715 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 716 if (update_type == AHD_TRANS_USER) 717 spi->sync_period = tinfo->user.period; 718 else 719 spi->sync_period = tinfo->goal.period; 720 } 721 722 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 723 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 724 u_int maxsync; 725 726 maxsync = AHD_SYNCRATE_MAX; 727 728 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 729 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 730 731 if ((*discenable & devinfo.target_mask) == 0) 732 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 733 734 ahd_find_syncrate(ahd, &spi->sync_period, 735 &spi->ppr_options, maxsync); 736 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 737 spi->sync_period, &spi->sync_offset, 738 spi->bus_width, ROLE_UNKNOWN); 739 740 /* We use a period of 0 to represent async */ 741 if (spi->sync_offset == 0) { 742 spi->sync_period = 0; 743 spi->ppr_options = 0; 744 } 745 746 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 747 spi->sync_offset, spi->ppr_options, 748 update_type, /*paused*/FALSE); 749 } 750 cts->ccb_h.status = CAM_REQ_CMP; 751#else 752 struct ahd_devinfo devinfo; 753 struct ahd_initiator_tinfo *tinfo; 754 struct ahd_tmode_tstate *tstate; 755 uint16_t *discenable; 756 uint16_t *tagenable; 757 u_int update_type; 758 759 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 760 cts->ccb_h.target_id, 761 cts->ccb_h.target_lun, 762 SIM_CHANNEL(ahd, sim), 763 ROLE_UNKNOWN); 764 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 765 devinfo.our_scsiid, 766 devinfo.target, &tstate); 767 update_type = 0; 768 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 769 update_type |= AHD_TRANS_GOAL; 770 discenable = &tstate->discenable; 771 tagenable = &tstate->tagenable; 772 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 773 update_type |= AHD_TRANS_USER; 774 discenable = &ahd->user_discenable; 775 tagenable = &ahd->user_tagenable; 776 } else { 777 cts->ccb_h.status = CAM_REQ_INVALID; 778 return; 779 } 780 781 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 782 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) 783 *discenable |= devinfo.target_mask; 784 else 785 *discenable &= ~devinfo.target_mask; 786 } 787 788 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 789 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) 790 *tagenable |= devinfo.target_mask; 791 else 792 *tagenable &= ~devinfo.target_mask; 793 } 794 795 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { 796 ahd_validate_width(ahd, /*tinfo limit*/NULL, 797 &cts->bus_width, ROLE_UNKNOWN); 798 ahd_set_width(ahd, &devinfo, cts->bus_width, 799 update_type, /*paused*/FALSE); 800 } 801 802 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) { 803 if (update_type == AHD_TRANS_USER) 804 cts->sync_offset = tinfo->user.offset; 805 else 806 cts->sync_offset = tinfo->goal.offset; 807 } 808 809 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) { 810 if (update_type == AHD_TRANS_USER) 811 cts->sync_period = tinfo->user.period; 812 else 813 cts->sync_period = tinfo->goal.period; 814 } 815 816 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) 817 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0) 818 || ((cts->valid & CCB_TRANS_TQ_VALID) != 0) 819 || ((cts->valid & CCB_TRANS_DISC_VALID) != 0)) { 820 u_int ppr_options; 821 u_int maxsync; 822 823 maxsync = AHD_SYNCRATE_MAX; 824 ppr_options = 0; 825 if (cts->sync_period <= AHD_SYNCRATE_DT 826 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT) { 827 ppr_options = tinfo->user.ppr_options 828 | MSG_EXT_PPR_DT_REQ; 829 } 830 831 if ((*tagenable & devinfo.target_mask) == 0 832 || (*discenable & devinfo.target_mask) == 0) 833 ppr_options &= ~MSG_EXT_PPR_IU_REQ; 834 835 ahd_find_syncrate(ahd, &cts->sync_period, 836 &ppr_options, maxsync); 837 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 838 cts->sync_period, &cts->sync_offset, 839 MSG_EXT_WDTR_BUS_8_BIT, 840 ROLE_UNKNOWN); 841 842 /* We use a period of 0 to represent async */ 843 if (cts->sync_offset == 0) { 844 cts->sync_period = 0; 845 ppr_options = 0; 846 } 847 848 if (ppr_options != 0 849 && tinfo->user.transport_version >= 3) { 850 tinfo->goal.transport_version = 851 tinfo->user.transport_version; 852 tinfo->curr.transport_version = 853 tinfo->user.transport_version; 854 } 855 856 ahd_set_syncrate(ahd, &devinfo, cts->sync_period, 857 cts->sync_offset, ppr_options, 858 update_type, /*paused*/FALSE); 859 } 860 cts->ccb_h.status = CAM_REQ_CMP; 861#endif 862} 863 864static void 865ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 866 struct ccb_trans_settings *cts) 867{ 868#ifdef AHD_NEW_TRAN_SETTINGS 869 struct ahd_devinfo devinfo; 870 struct ccb_trans_settings_scsi *scsi; 871 struct ccb_trans_settings_spi *spi; 872 struct ahd_initiator_tinfo *targ_info; 873 struct ahd_tmode_tstate *tstate; 874 struct ahd_transinfo *tinfo; 875 876 scsi = &cts->proto_specific.scsi; 877 spi = &cts->xport_specific.spi; 878 ahd_compile_devinfo(&devinfo, our_id, 879 cts->ccb_h.target_id, 880 cts->ccb_h.target_lun, 881 channel, ROLE_UNKNOWN); 882 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 883 devinfo.our_scsiid, 884 devinfo.target, &tstate); 885 886 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 887 tinfo = &targ_info->curr; 888 else 889 tinfo = &targ_info->user; 890 891 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 892 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 893 if (cts->type == CTS_TYPE_USER_SETTINGS) { 894 if ((ahd->user_discenable & devinfo.target_mask) != 0) 895 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 896 897 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 898 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 899 } else { 900 if ((tstate->discenable & devinfo.target_mask) != 0) 901 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 902 903 if ((tstate->tagenable & devinfo.target_mask) != 0) 904 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 905 } 906 cts->protocol_version = tinfo->protocol_version; 907 cts->transport_version = tinfo->transport_version; 908 909 spi->sync_period = tinfo->period; 910 spi->sync_offset = tinfo->offset; 911 spi->bus_width = tinfo->width; 912 spi->ppr_options = tinfo->ppr_options; 913 914 cts->protocol = PROTO_SCSI; 915 cts->transport = XPORT_SPI; 916 spi->valid = CTS_SPI_VALID_SYNC_RATE 917 | CTS_SPI_VALID_SYNC_OFFSET 918 | CTS_SPI_VALID_BUS_WIDTH 919 | CTS_SPI_VALID_PPR_OPTIONS; 920 921 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 922 scsi->valid = CTS_SCSI_VALID_TQ; 923 spi->valid |= CTS_SPI_VALID_DISC; 924 } else { 925 scsi->valid = 0; 926 } 927 928 cts->ccb_h.status = CAM_REQ_CMP; 929#else 930 struct ahd_devinfo devinfo; 931 struct ahd_initiator_tinfo *targ_info; 932 struct ahd_tmode_tstate *tstate; 933 struct ahd_transinfo *tinfo; 934 935 ahd_compile_devinfo(&devinfo, our_id, 936 cts->ccb_h.target_id, 937 cts->ccb_h.target_lun, 938 channel, ROLE_UNKNOWN); 939 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 940 devinfo.our_scsiid, 941 devinfo.target, &tstate); 942 943 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) 944 tinfo = &targ_info->curr; 945 else 946 tinfo = &targ_info->user; 947 948 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB); 949 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) { 950 if ((ahd->user_discenable & devinfo.target_mask) != 0) 951 cts->flags |= CCB_TRANS_DISC_ENB; 952 953 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 954 cts->flags |= CCB_TRANS_TAG_ENB; 955 } else { 956 if ((tstate->discenable & devinfo.target_mask) != 0) 957 cts->flags |= CCB_TRANS_DISC_ENB; 958 959 if ((tstate->tagenable & devinfo.target_mask) != 0) 960 cts->flags |= CCB_TRANS_TAG_ENB; 961 } 962 cts->sync_period = tinfo->period; 963 cts->sync_offset = tinfo->offset; 964 cts->bus_width = tinfo->width; 965 966 cts->valid = CCB_TRANS_SYNC_RATE_VALID 967 | CCB_TRANS_SYNC_OFFSET_VALID 968 | CCB_TRANS_BUS_WIDTH_VALID; 969 970 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) 971 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID; 972 973 cts->ccb_h.status = CAM_REQ_CMP; 974#endif 975} 976 977static void 978ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 979{ 980 struct ahd_softc *ahd; 981 struct cam_sim *sim; 982 983 sim = (struct cam_sim *)callback_arg; 984 ahd = (struct ahd_softc *)cam_sim_softc(sim); 985 switch (code) { 986 case AC_LOST_DEVICE: 987 { 988 struct ahd_devinfo devinfo; 989 long s; 990 991 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 992 xpt_path_target_id(path), 993 xpt_path_lun_id(path), 994 SIM_CHANNEL(ahd, sim), 995 ROLE_UNKNOWN); 996 997 /* 998 * Revert to async/narrow transfers 999 * for the next device. 1000 */ 1001 ahd_lock(ahd, &s); 1002 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 1003 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 1004 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 1005 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 1006 /*paused*/FALSE); 1007 ahd_unlock(ahd, &s); 1008 break; 1009 } 1010 default: 1011 break; 1012 } 1013} 1014 1015static void 1016ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 1017 int error) 1018{ 1019 struct scb *scb; 1020 union ccb *ccb; 1021 struct ahd_softc *ahd; 1022 struct ahd_initiator_tinfo *tinfo; 1023 struct ahd_tmode_tstate *tstate; 1024 u_int mask; 1025 u_long s; 1026 1027 scb = (struct scb *)arg; 1028 ccb = scb->io_ctx; 1029 ahd = scb->ahd_softc; 1030 1031 if (error != 0) { 1032 if (error == EFBIG) 1033 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 1034 else 1035 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 1036 if (nsegments != 0) 1037 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 1038 ahd_lock(ahd, &s); 1039 ahd_free_scb(ahd, scb); 1040 ahd_unlock(ahd, &s); 1041 xpt_done(ccb); 1042 return; 1043 } 1044 scb->sg_count = 0; 1045 if (nsegments != 0) { 1046 void *sg; 1047 bus_dmasync_op_t op; 1048 u_int i; 1049 1050 /* Copy the segments into our SG list */ 1051 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 1052 1053 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 1054 dm_segs->ds_len, 1055 /*last*/i == 1); 1056 dm_segs++; 1057 } 1058 1059 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1060 op = BUS_DMASYNC_PREREAD; 1061 else 1062 op = BUS_DMASYNC_PREWRITE; 1063 1064 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 1065 1066 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 1067 struct target_data *tdata; 1068 1069 tdata = &scb->hscb->shared_data.tdata; 1070 tdata->target_phases |= DPHASE_PENDING; 1071 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1072 tdata->data_phase = P_DATAOUT; 1073 else 1074 tdata->data_phase = P_DATAIN; 1075 } 1076 } 1077 1078 ahd_lock(ahd, &s); 1079 1080 /* 1081 * Last time we need to check if this SCB needs to 1082 * be aborted. 1083 */ 1084 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1085 if (nsegments != 0) 1086 bus_dmamap_unload(ahd->buffer_dmat, 1087 scb->dmamap); 1088 ahd_free_scb(ahd, scb); 1089 ahd_unlock(ahd, &s); 1090 xpt_done(ccb); 1091 return; 1092 } 1093 1094 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 1095 SCSIID_OUR_ID(scb->hscb->scsiid), 1096 SCSIID_TARGET(ahd, scb->hscb->scsiid), 1097 &tstate); 1098 1099 mask = SCB_GET_TARGET_MASK(ahd, scb); 1100 1101 if ((tstate->discenable & mask) != 0 1102 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1103 scb->hscb->control |= DISCENB; 1104 1105 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 1106 scb->flags |= SCB_PACKETIZED; 1107 if (scb->hscb->task_management != 0) 1108 scb->hscb->control &= ~MK_MESSAGE; 1109 } 1110 1111 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1112 && (tinfo->goal.width != 0 1113 || tinfo->goal.period != 0 1114 || tinfo->goal.ppr_options != 0)) { 1115 scb->flags |= SCB_NEGOTIATE; 1116 scb->hscb->control |= MK_MESSAGE; 1117 } else if ((tstate->auto_negotiate & mask) != 0) { 1118 scb->flags |= SCB_AUTO_NEGOTIATE; 1119 scb->hscb->control |= MK_MESSAGE; 1120 } 1121 1122 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 1123 1124 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1125 1126 if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) { 1127 uint64_t time; 1128 1129 if (ccb->ccb_h.timeout == CAM_TIME_DEFAULT) 1130 ccb->ccb_h.timeout = 5 * 1000; 1131 1132 time = ccb->ccb_h.timeout; 1133 time *= hz; 1134 time /= 1000; 1135 ccb->ccb_h.timeout_ch = 1136 timeout(ahd_platform_timeout, (caddr_t)scb, time); 1137 } 1138 1139 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1140 /* Define a mapping from our tag to the SCB. */ 1141 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 1142 ahd_pause(ahd); 1143 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 1144 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 1145 ahd_unpause(ahd); 1146 } else { 1147 ahd_queue_scb(ahd, scb); 1148 } 1149 1150 ahd_unlock(ahd, &s); 1151} 1152 1153static void 1154ahd_poll(struct cam_sim *sim) 1155{ 1156 ahd_intr(cam_sim_softc(sim)); 1157} 1158 1159static void 1160ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 1161 struct ccb_scsiio *csio, struct scb *scb) 1162{ 1163 struct hardware_scb *hscb; 1164 struct ccb_hdr *ccb_h; 1165 1166 hscb = scb->hscb; 1167 ccb_h = &csio->ccb_h; 1168 1169 csio->resid = 0; 1170 csio->sense_resid = 0; 1171 if (ccb_h->func_code == XPT_SCSI_IO) { 1172 hscb->cdb_len = csio->cdb_len; 1173 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1174 1175 if (hscb->cdb_len > MAX_CDB_LEN 1176 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 1177 u_long s; 1178 1179 /* 1180 * Should CAM start to support CDB sizes 1181 * greater than 16 bytes, we could use 1182 * the sense buffer to store the CDB. 1183 */ 1184 aic_set_transaction_status(scb, 1185 CAM_REQ_INVALID); 1186 ahd_lock(ahd, &s); 1187 ahd_free_scb(ahd, scb); 1188 ahd_unlock(ahd, &s); 1189 xpt_done((union ccb *)csio); 1190 return; 1191 } 1192 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 1193 hscb->shared_data.idata.cdb_from_host.cdbptr = 1194 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 1195 hscb->shared_data.idata.cdb_from_host.cdblen = 1196 csio->cdb_len; 1197 hscb->cdb_len |= SCB_CDB_LEN_PTR; 1198 } else { 1199 memcpy(hscb->shared_data.idata.cdb, 1200 csio->cdb_io.cdb_ptr, 1201 hscb->cdb_len); 1202 } 1203 } else { 1204 if (hscb->cdb_len > MAX_CDB_LEN) { 1205 u_long s; 1206 1207 aic_set_transaction_status(scb, 1208 CAM_REQ_INVALID); 1209 ahd_lock(ahd, &s); 1210 ahd_free_scb(ahd, scb); 1211 ahd_unlock(ahd, &s); 1212 xpt_done((union ccb *)csio); 1213 return; 1214 } 1215 memcpy(hscb->shared_data.idata.cdb, 1216 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1217 } 1218 } 1219 1220 /* Only use S/G if there is a transfer */ 1221 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1222 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1223 /* We've been given a pointer to a single buffer */ 1224 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1225 int s; 1226 int error; 1227 1228 s = splsoftvm(); 1229 error = bus_dmamap_load(ahd->buffer_dmat, 1230 scb->dmamap, 1231 csio->data_ptr, 1232 csio->dxfer_len, 1233 ahd_execute_scb, 1234 scb, /*flags*/0); 1235 if (error == EINPROGRESS) { 1236 /* 1237 * So as to maintain ordering, 1238 * freeze the controller queue 1239 * until our mapping is 1240 * returned. 1241 */ 1242 xpt_freeze_simq(sim, 1243 /*count*/1); 1244 scb->io_ctx->ccb_h.status |= 1245 CAM_RELEASE_SIMQ; 1246 } 1247 splx(s); 1248 } else { 1249 struct bus_dma_segment seg; 1250 1251 /* Pointer to physical buffer */ 1252 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE) 1253 panic("ahd_setup_data - Transfer size " 1254 "larger than can device max"); 1255 1256 seg.ds_addr = 1257 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1258 seg.ds_len = csio->dxfer_len; 1259 ahd_execute_scb(scb, &seg, 1, 0); 1260 } 1261 } else { 1262 struct bus_dma_segment *segs; 1263 1264 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1265 panic("ahd_setup_data - Physical segment " 1266 "pointers unsupported"); 1267 1268 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1269 panic("ahd_setup_data - Virtual segment " 1270 "addresses unsupported"); 1271 1272 /* Just use the segments provided */ 1273 segs = (struct bus_dma_segment *)csio->data_ptr; 1274 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0); 1275 } 1276 } else { 1277 ahd_execute_scb(scb, NULL, 0, 0); 1278 } 1279} 1280 1281static void 1282ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1283{ 1284 union ccb *abort_ccb; 1285 1286 abort_ccb = ccb->cab.abort_ccb; 1287 switch (abort_ccb->ccb_h.func_code) { 1288#ifdef AHD_TARGET_MODE 1289 case XPT_ACCEPT_TARGET_IO: 1290 case XPT_IMMED_NOTIFY: 1291 case XPT_CONT_TARGET_IO: 1292 { 1293 struct ahd_tmode_tstate *tstate; 1294 struct ahd_tmode_lstate *lstate; 1295 struct ccb_hdr_slist *list; 1296 cam_status status; 1297 1298 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1299 &lstate, TRUE); 1300 1301 if (status != CAM_REQ_CMP) { 1302 ccb->ccb_h.status = status; 1303 break; 1304 } 1305 1306 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1307 list = &lstate->accept_tios; 1308 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1309 list = &lstate->immed_notifies; 1310 else 1311 list = NULL; 1312 1313 if (list != NULL) { 1314 struct ccb_hdr *curelm; 1315 int found; 1316 1317 curelm = SLIST_FIRST(list); 1318 found = 0; 1319 if (curelm == &abort_ccb->ccb_h) { 1320 found = 1; 1321 SLIST_REMOVE_HEAD(list, sim_links.sle); 1322 } else { 1323 while(curelm != NULL) { 1324 struct ccb_hdr *nextelm; 1325 1326 nextelm = 1327 SLIST_NEXT(curelm, sim_links.sle); 1328 1329 if (nextelm == &abort_ccb->ccb_h) { 1330 found = 1; 1331 SLIST_NEXT(curelm, 1332 sim_links.sle) = 1333 SLIST_NEXT(nextelm, 1334 sim_links.sle); 1335 break; 1336 } 1337 curelm = nextelm; 1338 } 1339 } 1340 1341 if (found) { 1342 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1343 xpt_done(abort_ccb); 1344 ccb->ccb_h.status = CAM_REQ_CMP; 1345 } else { 1346 xpt_print_path(abort_ccb->ccb_h.path); 1347 printf("Not found\n"); 1348 ccb->ccb_h.status = CAM_PATH_INVALID; 1349 } 1350 break; 1351 } 1352 /* FALLTHROUGH */ 1353 } 1354#endif 1355 case XPT_SCSI_IO: 1356 /* XXX Fully implement the hard ones */ 1357 ccb->ccb_h.status = CAM_UA_ABORT; 1358 break; 1359 default: 1360 ccb->ccb_h.status = CAM_REQ_INVALID; 1361 break; 1362 } 1363 xpt_done(ccb); 1364} 1365 1366void 1367ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1368 u_int lun, ac_code code, void *opt_arg) 1369{ 1370 struct ccb_trans_settings cts; 1371 struct cam_path *path; 1372 void *arg; 1373 int error; 1374 1375 arg = NULL; 1376 error = ahd_create_path(ahd, channel, target, lun, &path); 1377 1378 if (error != CAM_REQ_CMP) 1379 return; 1380 1381 switch (code) { 1382 case AC_TRANSFER_NEG: 1383 { 1384#ifdef AHD_NEW_TRAN_SETTINGS 1385 struct ccb_trans_settings_scsi *scsi; 1386 1387 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1388 scsi = &cts.proto_specific.scsi; 1389#else 1390 cts.flags = CCB_TRANS_CURRENT_SETTINGS; 1391#endif 1392 cts.ccb_h.path = path; 1393 cts.ccb_h.target_id = target; 1394 cts.ccb_h.target_lun = lun; 1395 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1396 arg = &cts; 1397#ifdef AHD_NEW_TRAN_SETTINGS 1398 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1399 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1400#else 1401 cts.valid &= ~CCB_TRANS_TQ_VALID; 1402 cts.flags &= ~CCB_TRANS_TAG_ENB; 1403#endif 1404 if (opt_arg == NULL) 1405 break; 1406 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1407#ifdef AHD_NEW_TRAN_SETTINGS 1408 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1409 scsi->valid |= CTS_SCSI_VALID_TQ; 1410#else 1411 cts.flags |= CCB_TRANS_TAG_ENB; 1412 cts.valid |= CCB_TRANS_TQ_VALID; 1413#endif 1414 break; 1415 } 1416 case AC_SENT_BDR: 1417 case AC_BUS_RESET: 1418 break; 1419 default: 1420 panic("ahd_send_async: Unexpected async event"); 1421 } 1422 xpt_async(code, path, arg); 1423 xpt_free_path(path); 1424} 1425 1426void 1427ahd_platform_set_tags(struct ahd_softc *ahd, 1428 struct ahd_devinfo *devinfo, int enable) 1429{ 1430} 1431 1432int 1433ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1434{ 1435 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1436 M_NOWAIT | M_ZERO); 1437 if (ahd->platform_data == NULL) 1438 return (ENOMEM); 1439 return (0); 1440} 1441 1442void 1443ahd_platform_free(struct ahd_softc *ahd) 1444{ 1445 struct ahd_platform_data *pdata; 1446 1447 pdata = ahd->platform_data; 1448 if (pdata != NULL) { 1449 if (pdata->regs[0] != NULL) 1450 bus_release_resource(ahd->dev_softc, 1451 pdata->regs_res_type[0], 1452 pdata->regs_res_id[0], 1453 pdata->regs[0]); 1454 1455 if (pdata->regs[1] != NULL) 1456 bus_release_resource(ahd->dev_softc, 1457 pdata->regs_res_type[1], 1458 pdata->regs_res_id[1], 1459 pdata->regs[1]); 1460 1461 if (pdata->irq != NULL) 1462 bus_release_resource(ahd->dev_softc, 1463 pdata->irq_res_type, 1464 0, pdata->irq); 1465 1466 if (pdata->sim != NULL) { 1467 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1468 xpt_free_path(pdata->path); 1469 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1470 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1471 } 1472 if (pdata->eh != NULL) 1473 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1474 free(ahd->platform_data, M_DEVBUF); 1475 } 1476} 1477 1478int 1479ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1480{ 1481 /* We don't sort softcs under FreeBSD so report equal always */ 1482 return (0); 1483} 1484 1485int 1486ahd_detach(device_t dev) 1487{ 1488 struct ahd_softc *ahd; 1489 u_long l; 1490 u_long s; 1491 1492 ahd_list_lock(&l); 1493 device_printf(dev, "detaching device\n"); 1494 ahd = device_get_softc(dev); 1495 ahd = ahd_find_softc(ahd); 1496 if (ahd == NULL) { 1497 device_printf(dev, "aic7xxx already detached\n"); 1498 ahd_list_unlock(&l); 1499 return (ENOENT); 1500 } 1501 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1502 ahd_list_unlock(&l); 1503 ahd_lock(ahd, &s); 1504 ahd_intr_enable(ahd, FALSE); 1505 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1506 ahd_unlock(ahd, &s); 1507 ahd_free(ahd); 1508 return (0); 1509} 1510 1511#if UNUSED 1512static void 1513ahd_dump_targcmd(struct target_cmd *cmd) 1514{ 1515 uint8_t *byte; 1516 uint8_t *last_byte; 1517 int i; 1518 1519 byte = &cmd->initiator_channel; 1520 /* Debugging info for received commands */ 1521 last_byte = &cmd[1].initiator_channel; 1522 1523 i = 0; 1524 while (byte < last_byte) { 1525 if (i == 0) 1526 printf("\t"); 1527 printf("%#x", *byte++); 1528 i++; 1529 if (i == 8) { 1530 printf("\n"); 1531 i = 0; 1532 } else { 1533 printf(", "); 1534 } 1535 } 1536} 1537#endif 1538 1539static int 1540ahd_modevent(module_t mod, int type, void *data) 1541{ 1542 /* XXX Deal with busy status on unload. */ 1543 /* XXX Deal with unknown events */ 1544 return 0; 1545} 1546 1547static moduledata_t ahd_mod = { 1548 "ahd", 1549 ahd_modevent, 1550 NULL 1551}; 1552 1553/********************************** DDB Hooks *********************************/ 1554#ifdef DDB 1555static struct ahd_softc *ahd_ddb_softc; 1556static int ahd_ddb_paused; 1557static int ahd_ddb_paused_on_entry; 1558DB_COMMAND(ahd_set_unit, ahd_ddb_set_unit) 1559{ 1560 struct ahd_softc *list_ahd; 1561 1562 ahd_ddb_softc = NULL; 1563 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1564 if (list_ahd->unit == addr) 1565 ahd_ddb_softc = list_ahd; 1566 } 1567 if (ahd_ddb_softc == NULL) 1568 db_error("No matching softc found!\n"); 1569} 1570 1571DB_COMMAND(ahd_pause, ahd_ddb_pause) 1572{ 1573 if (ahd_ddb_softc == NULL) { 1574 db_error("Must set unit with ahd_set_unit first!\n"); 1575 return; 1576 } 1577 if (ahd_ddb_paused == 0) { 1578 ahd_ddb_paused++; 1579 if (ahd_is_paused(ahd_ddb_softc)) { 1580 ahd_ddb_paused_on_entry++; 1581 return; 1582 } 1583 ahd_pause(ahd_ddb_softc); 1584 } 1585} 1586 1587DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1588{ 1589 if (ahd_ddb_softc == NULL) { 1590 db_error("Must set unit with ahd_set_unit first!\n"); 1591 return; 1592 } 1593 if (ahd_ddb_paused != 0) { 1594 ahd_ddb_paused = 0; 1595 if (ahd_ddb_paused_on_entry) 1596 return; 1597 ahd_unpause(ahd_ddb_softc); 1598 } else if (ahd_ddb_paused_on_entry != 0) { 1599 /* Two unpauses to clear a paused on entry. */ 1600 ahd_ddb_paused_on_entry = 0; 1601 ahd_unpause(ahd_ddb_softc); 1602 } 1603} 1604 1605DB_COMMAND(ahd_in, ahd_ddb_in) 1606{ 1607 int c; 1608 int size; 1609 1610 if (ahd_ddb_softc == NULL) { 1611 db_error("Must set unit with ahd_set_unit first!\n"); 1612 return; 1613 } 1614 if (have_addr == 0) 1615 return; 1616 1617 size = 1; 1618 while ((c = *modif++) != '\0') { 1619 switch (c) { 1620 case 'b': 1621 size = 1; 1622 break; 1623 case 'w': 1624 size = 2; 1625 break; 1626 case 'l': 1627 size = 4; 1628 break; 1629 } 1630 } 1631 1632 if (count <= 0) 1633 count = 1; 1634 while (--count >= 0) { 1635 db_printf("%04lx (M)%x: \t", (u_long)addr, 1636 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1637 switch (size) { 1638 case 1: 1639 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1640 break; 1641 case 2: 1642 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1643 break; 1644 case 4: 1645 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1646 break; 1647 } 1648 } 1649} 1650 1651DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) 1652{ 1653 db_expr_t old_value; 1654 db_expr_t new_value; 1655 int size; 1656 1657 if (ahd_ddb_softc == NULL) { 1658 db_error("Must set unit with ahd_set_unit first!\n"); 1659 return; 1660 } 1661 1662 switch (modif[0]) { 1663 case '\0': 1664 case 'b': 1665 size = 1; 1666 break; 1667 case 'h': 1668 size = 2; 1669 break; 1670 case 'l': 1671 size = 4; 1672 break; 1673 default: 1674 db_error("Unknown size\n"); 1675 return; 1676 } 1677 1678 while (db_expression(&new_value)) { 1679 switch (size) { 1680 default: 1681 case 1: 1682 old_value = ahd_inb(ahd_ddb_softc, addr); 1683 ahd_outb(ahd_ddb_softc, addr, new_value); 1684 break; 1685 case 2: 1686 old_value = ahd_inw(ahd_ddb_softc, addr); 1687 ahd_outw(ahd_ddb_softc, addr, new_value); 1688 break; 1689 case 4: 1690 old_value = ahd_inl(ahd_ddb_softc, addr); 1691 ahd_outl(ahd_ddb_softc, addr, new_value); 1692 break; 1693 } 1694 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1695 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1696 (u_long)old_value, (u_long)new_value); 1697 addr += size; 1698 } 1699 db_skip_to_eol(); 1700} 1701 1702#endif 1703 1704 1705DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1706MODULE_DEPEND(ahd, cam, 1, 1, 1); 1707MODULE_VERSION(ahd, 1); 1708