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sys/dev/aic7xxx/aic79xx_osm.c
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1 /*- 2 * Bus independent FreeBSD shim for the aic79xx based Adaptec SCSI controllers 3 * 4 * Copyright (c) 1994-2002, 2004 Justin T. Gibbs. 5 * Copyright (c) 2001-2002 Adaptec Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions, and the following disclaimer, 13 * without modification. 14 * 2. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * Alternatively, this software may be distributed under the terms of the 18 * GNU Public License ("GPL"). 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $Id: //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#35 $ 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD: releng/6.2/sys/dev/aic7xxx/aic79xx_osm.c 151303 2005-10-14 02:03:27Z delphij $"); 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 57 static void ahd_dump_targcmd(struct target_cmd *cmd); 58 #endif 59 static int ahd_modevent(module_t mod, int type, void *data); 60 static void ahd_action(struct cam_sim *sim, union ccb *ccb); 61 static void ahd_set_tran_settings(struct ahd_softc *ahd, 62 int our_id, char channel, 63 struct ccb_trans_settings *cts); 64 static void ahd_get_tran_settings(struct ahd_softc *ahd, 65 int our_id, char channel, 66 struct ccb_trans_settings *cts); 67 static void ahd_async(void *callback_arg, uint32_t code, 68 struct cam_path *path, void *arg); 69 static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 70 int nsegments, int error); 71 static void ahd_poll(struct cam_sim *sim); 72 static void ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 73 struct ccb_scsiio *csio, struct scb *scb); 74 static void ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, 75 union ccb *ccb); 76 static int ahd_create_path(struct ahd_softc *ahd, 77 char channel, u_int target, u_int lun, 78 struct cam_path **path); 79 80 static int 81 ahd_create_path(struct ahd_softc *ahd, char channel, u_int target, 82 u_int lun, struct cam_path **path) 83 { 84 path_id_t path_id; 85 86 path_id = cam_sim_path(ahd->platform_data->sim); 87 return (xpt_create_path(path, /*periph*/NULL, 88 path_id, target, lun)); 89 } 90 91 int 92 ahd_map_int(struct ahd_softc *ahd) 93 { 94 int error; 95 96 /* Hook up our interrupt handler */ 97 error = bus_setup_intr(ahd->dev_softc, ahd->platform_data->irq, 98 INTR_TYPE_CAM, 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 */ 109 int 110 ahd_attach(struct ahd_softc *ahd) 111 { 112 char ahd_info[256]; 113 struct ccb_setasync csa; 114 struct cam_devq *devq; 115 struct cam_sim *sim; 116 struct cam_path *path; 117 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++; 174 175 fail: 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 */ 194 void 195 ahd_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 */ 208 void 209 ahd_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 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 267 struct scb *list_scb; 268 269 ahd->scb_data.recovery_scbs--; 270 271 if (aic_get_transaction_status(scb) == CAM_BDR_SENT 272 || aic_get_transaction_status(scb) == CAM_REQ_ABORTED) 273 aic_set_transaction_status(scb, CAM_CMD_TIMEOUT); 274 275 if (ahd->scb_data.recovery_scbs == 0) { 276 /* 277 * All recovery actions have completed successfully, 278 * so reinstate the timeouts for all other pending 279 * commands. 280 */ 281 LIST_FOREACH(list_scb, 282 &ahd->pending_scbs, pending_links) { 283 284 aic_scb_timer_reset(list_scb, 285 aic_get_timeout(scb)); 286 } 287 288 ahd_print_path(ahd, scb); 289 printf("no longer in timeout, status = %x\n", 290 ccb->ccb_h.status); 291 } 292 } 293 294 /* Don't clobber any existing error state */ 295 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 296 ccb->ccb_h.status |= CAM_REQ_CMP; 297 } else if ((scb->flags & SCB_SENSE) != 0) { 298 /* 299 * We performed autosense retrieval. 300 * 301 * Zero any sense not transferred by the 302 * device. The SCSI spec mandates that any 303 * untransfered data should be assumed to be 304 * zero. Complete the 'bounce' of sense information 305 * through buffers accessible via bus-space by 306 * copying it into the clients csio. 307 */ 308 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 309 memcpy(&ccb->csio.sense_data, 310 ahd_get_sense_buf(ahd, scb), 311 /* XXX What size do we want to use??? */ 312 sizeof(ccb->csio.sense_data) 313 - ccb->csio.sense_resid); 314 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 315 } else if ((scb->flags & SCB_PKT_SENSE) != 0) { 316 struct scsi_status_iu_header *siu; 317 u_int sense_len; 318 int i; 319 320 /* 321 * Copy only the sense data into the provided buffer. 322 */ 323 siu = (struct scsi_status_iu_header *)scb->sense_data; 324 sense_len = MIN(scsi_4btoul(siu->sense_length), 325 sizeof(ccb->csio.sense_data)); 326 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 327 memcpy(&ccb->csio.sense_data, 328 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu), 329 sense_len); 330 printf("Copied %d bytes of sense data offset %d:", sense_len, 331 SIU_SENSE_OFFSET(siu)); 332 for (i = 0; i < sense_len; i++) 333 printf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]); 334 printf("\n"); 335 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 336 } 337 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 338 ahd_free_scb(ahd, scb); 339 xpt_done(ccb); 340 } 341 342 static void 343 ahd_action(struct cam_sim *sim, union ccb *ccb) 344 { 345 struct ahd_softc *ahd; 346 #ifdef AHD_TARGET_MODE 347 struct ahd_tmode_lstate *lstate; 348 #endif 349 u_int target_id; 350 u_int our_id; 351 long s; 352 353 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n")); 354 355 ahd = (struct ahd_softc *)cam_sim_softc(sim); 356 357 target_id = ccb->ccb_h.target_id; 358 our_id = SIM_SCSI_ID(ahd, sim); 359 360 switch (ccb->ccb_h.func_code) { 361 /* Common cases first */ 362 #ifdef AHD_TARGET_MODE 363 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 364 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 365 { 366 struct ahd_tmode_tstate *tstate; 367 cam_status status; 368 369 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 370 &lstate, TRUE); 371 372 if (status != CAM_REQ_CMP) { 373 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 374 /* Response from the black hole device */ 375 tstate = NULL; 376 lstate = ahd->black_hole; 377 } else { 378 ccb->ccb_h.status = status; 379 xpt_done(ccb); 380 break; 381 } 382 } 383 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 384 385 ahd_lock(ahd, &s); 386 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 387 sim_links.sle); 388 ccb->ccb_h.status = CAM_REQ_INPROG; 389 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0) 390 ahd_run_tqinfifo(ahd, /*paused*/FALSE); 391 ahd_unlock(ahd, &s); 392 break; 393 } 394 395 /* 396 * The target_id represents the target we attempt to 397 * select. In target mode, this is the initiator of 398 * the original command. 399 */ 400 our_id = target_id; 401 target_id = ccb->csio.init_id; 402 /* FALLTHROUGH */ 403 } 404 #endif 405 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 406 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 407 { 408 struct scb *scb; 409 struct hardware_scb *hscb; 410 struct ahd_initiator_tinfo *tinfo; 411 struct ahd_tmode_tstate *tstate; 412 u_int col_idx; 413 414 if ((ahd->flags & AHD_INITIATORROLE) == 0 415 && (ccb->ccb_h.func_code == XPT_SCSI_IO 416 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 417 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 418 xpt_done(ccb); 419 return; 420 } 421 422 /* 423 * get an scb to use. 424 */ 425 ahd_lock(ahd, &s); 426 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, 427 target_id, &tstate); 428 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0 429 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0 430 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 431 col_idx = AHD_NEVER_COL_IDX; 432 } else { 433 col_idx = AHD_BUILD_COL_IDX(target_id, 434 ccb->ccb_h.target_lun); 435 } 436 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 437 438 xpt_freeze_simq(sim, /*count*/1); 439 ahd->flags |= AHD_RESOURCE_SHORTAGE; 440 ahd_unlock(ahd, &s); 441 ccb->ccb_h.status = CAM_REQUEUE_REQ; 442 xpt_done(ccb); 443 return; 444 } 445 ahd_unlock(ahd, &s); 446 447 hscb = scb->hscb; 448 449 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 450 ("start scb(%p)\n", scb)); 451 scb->io_ctx = ccb; 452 /* 453 * So we can find the SCB when an abort is requested 454 */ 455 ccb->ccb_h.ccb_scb_ptr = scb; 456 457 /* 458 * Put all the arguments for the xfer in the scb 459 */ 460 hscb->control = 0; 461 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 462 hscb->lun = ccb->ccb_h.target_lun; 463 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 464 hscb->cdb_len = 0; 465 scb->flags |= SCB_DEVICE_RESET; 466 hscb->control |= MK_MESSAGE; 467 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 468 ahd_execute_scb(scb, NULL, 0, 0); 469 } else { 470 #ifdef AHD_TARGET_MODE 471 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 472 struct target_data *tdata; 473 474 tdata = &hscb->shared_data.tdata; 475 if (ahd->pending_device == lstate) 476 scb->flags |= SCB_TARGET_IMMEDIATE; 477 hscb->control |= TARGET_SCB; 478 tdata->target_phases = 0; 479 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 480 tdata->target_phases |= SPHASE_PENDING; 481 tdata->scsi_status = 482 ccb->csio.scsi_status; 483 } 484 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 485 tdata->target_phases |= NO_DISCONNECT; 486 487 tdata->initiator_tag = 488 ahd_htole16(ccb->csio.tag_id); 489 } 490 #endif 491 hscb->task_management = 0; 492 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 493 hscb->control |= ccb->csio.tag_action; 494 495 ahd_setup_data(ahd, sim, &ccb->csio, scb); 496 } 497 break; 498 } 499 #ifdef AHD_TARGET_MODE 500 case XPT_NOTIFY_ACK: 501 case XPT_IMMED_NOTIFY: 502 { 503 struct ahd_tmode_tstate *tstate; 504 struct ahd_tmode_lstate *lstate; 505 cam_status status; 506 507 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 508 &lstate, TRUE); 509 510 if (status != CAM_REQ_CMP) { 511 ccb->ccb_h.status = status; 512 xpt_done(ccb); 513 break; 514 } 515 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 516 sim_links.sle); 517 ccb->ccb_h.status = CAM_REQ_INPROG; 518 ahd_send_lstate_events(ahd, lstate); 519 break; 520 } 521 case XPT_EN_LUN: /* Enable LUN as a target */ 522 ahd_handle_en_lun(ahd, sim, ccb); 523 xpt_done(ccb); 524 break; 525 #endif 526 case XPT_ABORT: /* Abort the specified CCB */ 527 { 528 ahd_abort_ccb(ahd, sim, ccb); 529 break; 530 } 531 case XPT_SET_TRAN_SETTINGS: 532 { 533 ahd_lock(ahd, &s); 534 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 535 SIM_CHANNEL(ahd, sim), &ccb->cts); 536 ahd_unlock(ahd, &s); 537 xpt_done(ccb); 538 break; 539 } 540 case XPT_GET_TRAN_SETTINGS: 541 /* Get default/user set transfer settings for the target */ 542 { 543 ahd_lock(ahd, &s); 544 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 545 SIM_CHANNEL(ahd, sim), &ccb->cts); 546 ahd_unlock(ahd, &s); 547 xpt_done(ccb); 548 break; 549 } 550 case XPT_CALC_GEOMETRY: 551 { 552 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A); 553 xpt_done(ccb); 554 break; 555 } 556 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 557 { 558 int found; 559 560 ahd_lock(ahd, &s); 561 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 562 /*initiate reset*/TRUE); 563 ahd_unlock(ahd, &s); 564 if (bootverbose) { 565 xpt_print_path(SIM_PATH(ahd, sim)); 566 printf("SCSI bus reset delivered. " 567 "%d SCBs aborted.\n", found); 568 } 569 ccb->ccb_h.status = CAM_REQ_CMP; 570 xpt_done(ccb); 571 break; 572 } 573 case XPT_TERM_IO: /* Terminate the I/O process */ 574 /* XXX Implement */ 575 ccb->ccb_h.status = CAM_REQ_INVALID; 576 xpt_done(ccb); 577 break; 578 case XPT_PATH_INQ: /* Path routing inquiry */ 579 { 580 struct ccb_pathinq *cpi = &ccb->cpi; 581 582 cpi->version_num = 1; /* XXX??? */ 583 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 584 if ((ahd->features & AHD_WIDE) != 0) 585 cpi->hba_inquiry |= PI_WIDE_16; 586 if ((ahd->features & AHD_TARGETMODE) != 0) { 587 cpi->target_sprt = PIT_PROCESSOR 588 | PIT_DISCONNECT 589 | PIT_TERM_IO; 590 } else { 591 cpi->target_sprt = 0; 592 } 593 cpi->hba_misc = 0; 594 cpi->hba_eng_cnt = 0; 595 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7; 596 cpi->max_lun = AHD_NUM_LUNS_NONPKT - 1; 597 cpi->initiator_id = ahd->our_id; 598 if ((ahd->flags & AHD_RESET_BUS_A) == 0) { 599 cpi->hba_misc |= PIM_NOBUSRESET; 600 } 601 cpi->bus_id = cam_sim_bus(sim); 602 cpi->base_transfer_speed = 3300; 603 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 604 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 605 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 606 cpi->unit_number = cam_sim_unit(sim); 607 #ifdef AHD_NEW_TRAN_SETTINGS 608 cpi->protocol = PROTO_SCSI; 609 cpi->protocol_version = SCSI_REV_2; 610 cpi->transport = XPORT_SPI; 611 cpi->transport_version = 2; 612 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 613 cpi->transport_version = 4; 614 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST; 615 #endif 616 cpi->ccb_h.status = CAM_REQ_CMP; 617 xpt_done(ccb); 618 break; 619 } 620 default: 621 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 622 xpt_done(ccb); 623 break; 624 } 625 } 626 627 628 static void 629 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 630 struct ccb_trans_settings *cts) 631 { 632 #ifdef AHD_NEW_TRAN_SETTINGS 633 struct ahd_devinfo devinfo; 634 struct ccb_trans_settings_scsi *scsi; 635 struct ccb_trans_settings_spi *spi; 636 struct ahd_initiator_tinfo *tinfo; 637 struct ahd_tmode_tstate *tstate; 638 uint16_t *discenable; 639 uint16_t *tagenable; 640 u_int update_type; 641 642 scsi = &cts->proto_specific.scsi; 643 spi = &cts->xport_specific.spi; 644 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 645 cts->ccb_h.target_id, 646 cts->ccb_h.target_lun, 647 SIM_CHANNEL(ahd, sim), 648 ROLE_UNKNOWN); 649 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 650 devinfo.our_scsiid, 651 devinfo.target, &tstate); 652 update_type = 0; 653 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 654 update_type |= AHD_TRANS_GOAL; 655 discenable = &tstate->discenable; 656 tagenable = &tstate->tagenable; 657 tinfo->curr.protocol_version = cts->protocol_version; 658 tinfo->curr.transport_version = cts->transport_version; 659 tinfo->goal.protocol_version = cts->protocol_version; 660 tinfo->goal.transport_version = cts->transport_version; 661 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 662 update_type |= AHD_TRANS_USER; 663 discenable = &ahd->user_discenable; 664 tagenable = &ahd->user_tagenable; 665 tinfo->user.protocol_version = cts->protocol_version; 666 tinfo->user.transport_version = cts->transport_version; 667 } else { 668 cts->ccb_h.status = CAM_REQ_INVALID; 669 return; 670 } 671 672 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 673 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 674 *discenable |= devinfo.target_mask; 675 else 676 *discenable &= ~devinfo.target_mask; 677 } 678 679 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 680 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 681 *tagenable |= devinfo.target_mask; 682 else 683 *tagenable &= ~devinfo.target_mask; 684 } 685 686 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 687 ahd_validate_width(ahd, /*tinfo limit*/NULL, 688 &spi->bus_width, ROLE_UNKNOWN); 689 ahd_set_width(ahd, &devinfo, spi->bus_width, 690 update_type, /*paused*/FALSE); 691 } 692 693 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 694 if (update_type == AHD_TRANS_USER) 695 spi->ppr_options = tinfo->user.ppr_options; 696 else 697 spi->ppr_options = tinfo->goal.ppr_options; 698 } 699 700 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 701 if (update_type == AHD_TRANS_USER) 702 spi->sync_offset = tinfo->user.offset; 703 else 704 spi->sync_offset = tinfo->goal.offset; 705 } 706 707 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 708 if (update_type == AHD_TRANS_USER) 709 spi->sync_period = tinfo->user.period; 710 else 711 spi->sync_period = tinfo->goal.period; 712 } 713 714 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 715 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 716 u_int maxsync; 717 718 maxsync = AHD_SYNCRATE_MAX; 719 720 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 721 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 722 723 if ((*discenable & devinfo.target_mask) == 0) 724 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 725 726 ahd_find_syncrate(ahd, &spi->sync_period, 727 &spi->ppr_options, maxsync); 728 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 729 spi->sync_period, &spi->sync_offset, 730 spi->bus_width, ROLE_UNKNOWN); 731 732 /* We use a period of 0 to represent async */ 733 if (spi->sync_offset == 0) { 734 spi->sync_period = 0; 735 spi->ppr_options = 0; 736 } 737 738 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 739 spi->sync_offset, spi->ppr_options, 740 update_type, /*paused*/FALSE); 741 } 742 cts->ccb_h.status = CAM_REQ_CMP; 743 #else 744 struct ahd_devinfo devinfo; 745 struct ahd_initiator_tinfo *tinfo; 746 struct ahd_tmode_tstate *tstate; 747 uint16_t *discenable; 748 uint16_t *tagenable; 749 u_int update_type; 750 751 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 752 cts->ccb_h.target_id, 753 cts->ccb_h.target_lun, 754 SIM_CHANNEL(ahd, sim), 755 ROLE_UNKNOWN); 756 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 757 devinfo.our_scsiid, 758 devinfo.target, &tstate); 759 update_type = 0; 760 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 761 update_type |= AHD_TRANS_GOAL; 762 discenable = &tstate->discenable; 763 tagenable = &tstate->tagenable; 764 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 765 update_type |= AHD_TRANS_USER; 766 discenable = &ahd->user_discenable; 767 tagenable = &ahd->user_tagenable; 768 } else { 769 cts->ccb_h.status = CAM_REQ_INVALID; 770 return; 771 } 772 773 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 774 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) 775 *discenable |= devinfo.target_mask; 776 else 777 *discenable &= ~devinfo.target_mask; 778 } 779 780 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 781 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) 782 *tagenable |= devinfo.target_mask; 783 else 784 *tagenable &= ~devinfo.target_mask; 785 } 786 787 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { 788 ahd_validate_width(ahd, /*tinfo limit*/NULL, 789 &cts->bus_width, ROLE_UNKNOWN); 790 ahd_set_width(ahd, &devinfo, cts->bus_width, 791 update_type, /*paused*/FALSE); 792 } 793 794 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) { 795 if (update_type == AHD_TRANS_USER) 796 cts->sync_offset = tinfo->user.offset; 797 else 798 cts->sync_offset = tinfo->goal.offset; 799 } 800 801 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) { 802 if (update_type == AHD_TRANS_USER) 803 cts->sync_period = tinfo->user.period; 804 else 805 cts->sync_period = tinfo->goal.period; 806 } 807 808 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) 809 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0) 810 || ((cts->valid & CCB_TRANS_TQ_VALID) != 0) 811 || ((cts->valid & CCB_TRANS_DISC_VALID) != 0)) { 812 u_int ppr_options; 813 u_int maxsync; 814 815 maxsync = AHD_SYNCRATE_MAX; 816 ppr_options = 0; 817 if (cts->sync_period <= AHD_SYNCRATE_DT 818 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT) { 819 ppr_options = tinfo->user.ppr_options 820 | MSG_EXT_PPR_DT_REQ; 821 } 822 823 if ((*tagenable & devinfo.target_mask) == 0 824 || (*discenable & devinfo.target_mask) == 0) 825 ppr_options &= ~MSG_EXT_PPR_IU_REQ; 826 827 ahd_find_syncrate(ahd, &cts->sync_period, 828 &ppr_options, maxsync); 829 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 830 cts->sync_period, &cts->sync_offset, 831 MSG_EXT_WDTR_BUS_8_BIT, 832 ROLE_UNKNOWN); 833 834 /* We use a period of 0 to represent async */ 835 if (cts->sync_offset == 0) { 836 cts->sync_period = 0; 837 ppr_options = 0; 838 } 839 840 if (ppr_options != 0 841 && tinfo->user.transport_version >= 3) { 842 tinfo->goal.transport_version = 843 tinfo->user.transport_version; 844 tinfo->curr.transport_version = 845 tinfo->user.transport_version; 846 } 847 848 ahd_set_syncrate(ahd, &devinfo, cts->sync_period, 849 cts->sync_offset, ppr_options, 850 update_type, /*paused*/FALSE); 851 } 852 cts->ccb_h.status = CAM_REQ_CMP; 853 #endif 854 } 855 856 static void 857 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 858 struct ccb_trans_settings *cts) 859 { 860 #ifdef AHD_NEW_TRAN_SETTINGS 861 struct ahd_devinfo devinfo; 862 struct ccb_trans_settings_scsi *scsi; 863 struct ccb_trans_settings_spi *spi; 864 struct ahd_initiator_tinfo *targ_info; 865 struct ahd_tmode_tstate *tstate; 866 struct ahd_transinfo *tinfo; 867 868 scsi = &cts->proto_specific.scsi; 869 spi = &cts->xport_specific.spi; 870 ahd_compile_devinfo(&devinfo, our_id, 871 cts->ccb_h.target_id, 872 cts->ccb_h.target_lun, 873 channel, ROLE_UNKNOWN); 874 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 875 devinfo.our_scsiid, 876 devinfo.target, &tstate); 877 878 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 879 tinfo = &targ_info->curr; 880 else 881 tinfo = &targ_info->user; 882 883 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 884 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 885 if (cts->type == CTS_TYPE_USER_SETTINGS) { 886 if ((ahd->user_discenable & devinfo.target_mask) != 0) 887 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 888 889 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 890 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 891 } else { 892 if ((tstate->discenable & devinfo.target_mask) != 0) 893 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 894 895 if ((tstate->tagenable & devinfo.target_mask) != 0) 896 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 897 } 898 cts->protocol_version = tinfo->protocol_version; 899 cts->transport_version = tinfo->transport_version; 900 901 spi->sync_period = tinfo->period; 902 spi->sync_offset = tinfo->offset; 903 spi->bus_width = tinfo->width; 904 spi->ppr_options = tinfo->ppr_options; 905 906 cts->protocol = PROTO_SCSI; 907 cts->transport = XPORT_SPI; 908 spi->valid = CTS_SPI_VALID_SYNC_RATE 909 | CTS_SPI_VALID_SYNC_OFFSET 910 | CTS_SPI_VALID_BUS_WIDTH 911 | CTS_SPI_VALID_PPR_OPTIONS; 912 913 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 914 scsi->valid = CTS_SCSI_VALID_TQ; 915 spi->valid |= CTS_SPI_VALID_DISC; 916 } else { 917 scsi->valid = 0; 918 } 919 920 cts->ccb_h.status = CAM_REQ_CMP; 921 #else 922 struct ahd_devinfo devinfo; 923 struct ahd_initiator_tinfo *targ_info; 924 struct ahd_tmode_tstate *tstate; 925 struct ahd_transinfo *tinfo; 926 927 ahd_compile_devinfo(&devinfo, our_id, 928 cts->ccb_h.target_id, 929 cts->ccb_h.target_lun, 930 channel, ROLE_UNKNOWN); 931 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 932 devinfo.our_scsiid, 933 devinfo.target, &tstate); 934 935 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) 936 tinfo = &targ_info->curr; 937 else 938 tinfo = &targ_info->user; 939 940 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB); 941 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) { 942 if ((ahd->user_discenable & devinfo.target_mask) != 0) 943 cts->flags |= CCB_TRANS_DISC_ENB; 944 945 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 946 cts->flags |= CCB_TRANS_TAG_ENB; 947 } else { 948 if ((tstate->discenable & devinfo.target_mask) != 0) 949 cts->flags |= CCB_TRANS_DISC_ENB; 950 951 if ((tstate->tagenable & devinfo.target_mask) != 0) 952 cts->flags |= CCB_TRANS_TAG_ENB; 953 } 954 cts->sync_period = tinfo->period; 955 cts->sync_offset = tinfo->offset; 956 cts->bus_width = tinfo->width; 957 958 cts->valid = CCB_TRANS_SYNC_RATE_VALID 959 | CCB_TRANS_SYNC_OFFSET_VALID 960 | CCB_TRANS_BUS_WIDTH_VALID; 961 962 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) 963 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID; 964 965 cts->ccb_h.status = CAM_REQ_CMP; 966 #endif 967 } 968 969 static void 970 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 971 { 972 struct ahd_softc *ahd; 973 struct cam_sim *sim; 974 975 sim = (struct cam_sim *)callback_arg; 976 ahd = (struct ahd_softc *)cam_sim_softc(sim); 977 switch (code) { 978 case AC_LOST_DEVICE: 979 { 980 struct ahd_devinfo devinfo; 981 long s; 982 983 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 984 xpt_path_target_id(path), 985 xpt_path_lun_id(path), 986 SIM_CHANNEL(ahd, sim), 987 ROLE_UNKNOWN); 988 989 /* 990 * Revert to async/narrow transfers 991 * for the next device. 992 */ 993 ahd_lock(ahd, &s); 994 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 995 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 996 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 997 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 998 /*paused*/FALSE); 999 ahd_unlock(ahd, &s); 1000 break; 1001 } 1002 default: 1003 break; 1004 } 1005 } 1006 1007 static void 1008 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 1009 int error) 1010 { 1011 struct scb *scb; 1012 union ccb *ccb; 1013 struct ahd_softc *ahd; 1014 struct ahd_initiator_tinfo *tinfo; 1015 struct ahd_tmode_tstate *tstate; 1016 u_int mask; 1017 u_long s; 1018 1019 scb = (struct scb *)arg; 1020 ccb = scb->io_ctx; 1021 ahd = scb->ahd_softc; 1022 1023 if (error != 0) { 1024 if (error == EFBIG) 1025 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 1026 else 1027 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 1028 if (nsegments != 0) 1029 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 1030 ahd_lock(ahd, &s); 1031 ahd_free_scb(ahd, scb); 1032 ahd_unlock(ahd, &s); 1033 xpt_done(ccb); 1034 return; 1035 } 1036 scb->sg_count = 0; 1037 if (nsegments != 0) { 1038 void *sg; 1039 bus_dmasync_op_t op; 1040 u_int i; 1041 1042 /* Copy the segments into our SG list */ 1043 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 1044 1045 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 1046 dm_segs->ds_len, 1047 /*last*/i == 1); 1048 dm_segs++; 1049 } 1050 1051 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1052 op = BUS_DMASYNC_PREREAD; 1053 else 1054 op = BUS_DMASYNC_PREWRITE; 1055 1056 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 1057 1058 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 1059 struct target_data *tdata; 1060 1061 tdata = &scb->hscb->shared_data.tdata; 1062 tdata->target_phases |= DPHASE_PENDING; 1063 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1064 tdata->data_phase = P_DATAOUT; 1065 else 1066 tdata->data_phase = P_DATAIN; 1067 } 1068 } 1069 1070 ahd_lock(ahd, &s); 1071 1072 /* 1073 * Last time we need to check if this SCB needs to 1074 * be aborted. 1075 */ 1076 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1077 if (nsegments != 0) 1078 bus_dmamap_unload(ahd->buffer_dmat, 1079 scb->dmamap); 1080 ahd_free_scb(ahd, scb); 1081 ahd_unlock(ahd, &s); 1082 xpt_done(ccb); 1083 return; 1084 } 1085 1086 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 1087 SCSIID_OUR_ID(scb->hscb->scsiid), 1088 SCSIID_TARGET(ahd, scb->hscb->scsiid), 1089 &tstate); 1090 1091 mask = SCB_GET_TARGET_MASK(ahd, scb); 1092 1093 if ((tstate->discenable & mask) != 0 1094 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1095 scb->hscb->control |= DISCENB; 1096 1097 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 1098 scb->flags |= SCB_PACKETIZED; 1099 if (scb->hscb->task_management != 0) 1100 scb->hscb->control &= ~MK_MESSAGE; 1101 } 1102 1103 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1104 && (tinfo->goal.width != 0 1105 || tinfo->goal.period != 0 1106 || tinfo->goal.ppr_options != 0)) { 1107 scb->flags |= SCB_NEGOTIATE; 1108 scb->hscb->control |= MK_MESSAGE; 1109 } else if ((tstate->auto_negotiate & mask) != 0) { 1110 scb->flags |= SCB_AUTO_NEGOTIATE; 1111 scb->hscb->control |= MK_MESSAGE; 1112 } 1113 1114 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 1115 1116 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1117 1118 aic_scb_timer_start(scb); 1119 1120 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1121 /* Define a mapping from our tag to the SCB. */ 1122 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 1123 ahd_pause(ahd); 1124 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 1125 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 1126 ahd_unpause(ahd); 1127 } else { 1128 ahd_queue_scb(ahd, scb); 1129 } 1130 1131 ahd_unlock(ahd, &s); 1132 } 1133 1134 static void 1135 ahd_poll(struct cam_sim *sim) 1136 { 1137 ahd_intr(cam_sim_softc(sim)); 1138 } 1139 1140 static void 1141 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 1142 struct ccb_scsiio *csio, struct scb *scb) 1143 { 1144 struct hardware_scb *hscb; 1145 struct ccb_hdr *ccb_h; 1146 1147 hscb = scb->hscb; 1148 ccb_h = &csio->ccb_h; 1149 1150 csio->resid = 0; 1151 csio->sense_resid = 0; 1152 if (ccb_h->func_code == XPT_SCSI_IO) { 1153 hscb->cdb_len = csio->cdb_len; 1154 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1155 1156 if (hscb->cdb_len > MAX_CDB_LEN 1157 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 1158 u_long s; 1159 1160 /* 1161 * Should CAM start to support CDB sizes 1162 * greater than 16 bytes, we could use 1163 * the sense buffer to store the CDB. 1164 */ 1165 aic_set_transaction_status(scb, 1166 CAM_REQ_INVALID); 1167 ahd_lock(ahd, &s); 1168 ahd_free_scb(ahd, scb); 1169 ahd_unlock(ahd, &s); 1170 xpt_done((union ccb *)csio); 1171 return; 1172 } 1173 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 1174 hscb->shared_data.idata.cdb_from_host.cdbptr = 1175 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 1176 hscb->shared_data.idata.cdb_from_host.cdblen = 1177 csio->cdb_len; 1178 hscb->cdb_len |= SCB_CDB_LEN_PTR; 1179 } else { 1180 memcpy(hscb->shared_data.idata.cdb, 1181 csio->cdb_io.cdb_ptr, 1182 hscb->cdb_len); 1183 } 1184 } else { 1185 if (hscb->cdb_len > MAX_CDB_LEN) { 1186 u_long s; 1187 1188 aic_set_transaction_status(scb, 1189 CAM_REQ_INVALID); 1190 ahd_lock(ahd, &s); 1191 ahd_free_scb(ahd, scb); 1192 ahd_unlock(ahd, &s); 1193 xpt_done((union ccb *)csio); 1194 return; 1195 } 1196 memcpy(hscb->shared_data.idata.cdb, 1197 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1198 } 1199 } 1200 1201 /* Only use S/G if there is a transfer */ 1202 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1203 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1204 /* We've been given a pointer to a single buffer */ 1205 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1206 int s; 1207 int error; 1208 1209 s = splsoftvm(); 1210 error = bus_dmamap_load(ahd->buffer_dmat, 1211 scb->dmamap, 1212 csio->data_ptr, 1213 csio->dxfer_len, 1214 ahd_execute_scb, 1215 scb, /*flags*/0); 1216 if (error == EINPROGRESS) { 1217 /* 1218 * So as to maintain ordering, 1219 * freeze the controller queue 1220 * until our mapping is 1221 * returned. 1222 */ 1223 xpt_freeze_simq(sim, 1224 /*count*/1); 1225 scb->io_ctx->ccb_h.status |= 1226 CAM_RELEASE_SIMQ; 1227 } 1228 splx(s); 1229 } else { 1230 struct bus_dma_segment seg; 1231 1232 /* Pointer to physical buffer */ 1233 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE) 1234 panic("ahd_setup_data - Transfer size " 1235 "larger than can device max"); 1236 1237 seg.ds_addr = 1238 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1239 seg.ds_len = csio->dxfer_len; 1240 ahd_execute_scb(scb, &seg, 1, 0); 1241 } 1242 } else { 1243 struct bus_dma_segment *segs; 1244 1245 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1246 panic("ahd_setup_data - Physical segment " 1247 "pointers unsupported"); 1248 1249 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1250 panic("ahd_setup_data - Virtual segment " 1251 "addresses unsupported"); 1252 1253 /* Just use the segments provided */ 1254 segs = (struct bus_dma_segment *)csio->data_ptr; 1255 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0); 1256 } 1257 } else { 1258 ahd_execute_scb(scb, NULL, 0, 0); 1259 } 1260 } 1261 1262 static void 1263 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1264 { 1265 union ccb *abort_ccb; 1266 1267 abort_ccb = ccb->cab.abort_ccb; 1268 switch (abort_ccb->ccb_h.func_code) { 1269 #ifdef AHD_TARGET_MODE 1270 case XPT_ACCEPT_TARGET_IO: 1271 case XPT_IMMED_NOTIFY: 1272 case XPT_CONT_TARGET_IO: 1273 { 1274 struct ahd_tmode_tstate *tstate; 1275 struct ahd_tmode_lstate *lstate; 1276 struct ccb_hdr_slist *list; 1277 cam_status status; 1278 1279 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1280 &lstate, TRUE); 1281 1282 if (status != CAM_REQ_CMP) { 1283 ccb->ccb_h.status = status; 1284 break; 1285 } 1286 1287 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1288 list = &lstate->accept_tios; 1289 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1290 list = &lstate->immed_notifies; 1291 else 1292 list = NULL; 1293 1294 if (list != NULL) { 1295 struct ccb_hdr *curelm; 1296 int found; 1297 1298 curelm = SLIST_FIRST(list); 1299 found = 0; 1300 if (curelm == &abort_ccb->ccb_h) { 1301 found = 1; 1302 SLIST_REMOVE_HEAD(list, sim_links.sle); 1303 } else { 1304 while(curelm != NULL) { 1305 struct ccb_hdr *nextelm; 1306 1307 nextelm = 1308 SLIST_NEXT(curelm, sim_links.sle); 1309 1310 if (nextelm == &abort_ccb->ccb_h) { 1311 found = 1; 1312 SLIST_NEXT(curelm, 1313 sim_links.sle) = 1314 SLIST_NEXT(nextelm, 1315 sim_links.sle); 1316 break; 1317 } 1318 curelm = nextelm; 1319 } 1320 } 1321 1322 if (found) { 1323 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1324 xpt_done(abort_ccb); 1325 ccb->ccb_h.status = CAM_REQ_CMP; 1326 } else { 1327 xpt_print_path(abort_ccb->ccb_h.path); 1328 printf("Not found\n"); 1329 ccb->ccb_h.status = CAM_PATH_INVALID; 1330 } 1331 break; 1332 } 1333 /* FALLTHROUGH */ 1334 } 1335 #endif 1336 case XPT_SCSI_IO: 1337 /* XXX Fully implement the hard ones */ 1338 ccb->ccb_h.status = CAM_UA_ABORT; 1339 break; 1340 default: 1341 ccb->ccb_h.status = CAM_REQ_INVALID; 1342 break; 1343 } 1344 xpt_done(ccb); 1345 } 1346 1347 void 1348 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1349 u_int lun, ac_code code, void *opt_arg) 1350 { 1351 struct ccb_trans_settings cts; 1352 struct cam_path *path; 1353 void *arg; 1354 int error; 1355 1356 arg = NULL; 1357 error = ahd_create_path(ahd, channel, target, lun, &path); 1358 1359 if (error != CAM_REQ_CMP) 1360 return; 1361 1362 switch (code) { 1363 case AC_TRANSFER_NEG: 1364 { 1365 #ifdef AHD_NEW_TRAN_SETTINGS 1366 struct ccb_trans_settings_scsi *scsi; 1367 1368 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1369 scsi = &cts.proto_specific.scsi; 1370 #else 1371 cts.flags = CCB_TRANS_CURRENT_SETTINGS; 1372 #endif 1373 cts.ccb_h.path = path; 1374 cts.ccb_h.target_id = target; 1375 cts.ccb_h.target_lun = lun; 1376 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1377 arg = &cts; 1378 #ifdef AHD_NEW_TRAN_SETTINGS 1379 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1380 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1381 #else 1382 cts.valid &= ~CCB_TRANS_TQ_VALID; 1383 cts.flags &= ~CCB_TRANS_TAG_ENB; 1384 #endif 1385 if (opt_arg == NULL) 1386 break; 1387 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1388 #ifdef AHD_NEW_TRAN_SETTINGS 1389 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1390 scsi->valid |= CTS_SCSI_VALID_TQ; 1391 #else 1392 cts.flags |= CCB_TRANS_TAG_ENB; 1393 cts.valid |= CCB_TRANS_TQ_VALID; 1394 #endif 1395 break; 1396 } 1397 case AC_SENT_BDR: 1398 case AC_BUS_RESET: 1399 break; 1400 default: 1401 panic("ahd_send_async: Unexpected async event"); 1402 } 1403 xpt_async(code, path, arg); 1404 xpt_free_path(path); 1405 } 1406 1407 void 1408 ahd_platform_set_tags(struct ahd_softc *ahd, 1409 struct ahd_devinfo *devinfo, int enable) 1410 { 1411 } 1412 1413 int 1414 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1415 { 1416 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1417 M_NOWAIT | M_ZERO); 1418 if (ahd->platform_data == NULL) 1419 return (ENOMEM); 1420 return (0); 1421 } 1422 1423 void 1424 ahd_platform_free(struct ahd_softc *ahd) 1425 { 1426 struct ahd_platform_data *pdata; 1427 1428 pdata = ahd->platform_data; 1429 if (pdata != NULL) { 1430 if (pdata->regs[0] != NULL) 1431 bus_release_resource(ahd->dev_softc, 1432 pdata->regs_res_type[0], 1433 pdata->regs_res_id[0], 1434 pdata->regs[0]); 1435 1436 if (pdata->regs[1] != NULL) 1437 bus_release_resource(ahd->dev_softc, 1438 pdata->regs_res_type[1], 1439 pdata->regs_res_id[1], 1440 pdata->regs[1]); 1441 1442 if (pdata->irq != NULL) 1443 bus_release_resource(ahd->dev_softc, 1444 pdata->irq_res_type, 1445 0, pdata->irq); 1446 1447 if (pdata->sim != NULL) { 1448 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1449 xpt_free_path(pdata->path); 1450 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1451 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1452 } 1453 if (pdata->eh != NULL) 1454 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1455 free(ahd->platform_data, M_DEVBUF); 1456 } 1457 } 1458 1459 int 1460 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1461 { 1462 /* We don't sort softcs under FreeBSD so report equal always */ 1463 return (0); 1464 } 1465 1466 int 1467 ahd_detach(device_t dev) 1468 { 1469 struct ahd_softc *ahd; 1470 u_long l; 1471 u_long s; 1472 1473 ahd_list_lock(&l); 1474 device_printf(dev, "detaching device\n"); 1475 ahd = device_get_softc(dev); 1476 ahd = ahd_find_softc(ahd); 1477 if (ahd == NULL) { 1478 device_printf(dev, "aic7xxx already detached\n"); 1479 ahd_list_unlock(&l); 1480 return (ENOENT); 1481 } 1482 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1483 ahd_list_unlock(&l); 1484 ahd_lock(ahd, &s); 1485 ahd_intr_enable(ahd, FALSE); 1486 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1487 ahd_unlock(ahd, &s); 1488 ahd_free(ahd); 1489 return (0); 1490 } 1491 1492 #if UNUSED 1493 static void 1494 ahd_dump_targcmd(struct target_cmd *cmd) 1495 { 1496 uint8_t *byte; 1497 uint8_t *last_byte; 1498 int i; 1499 1500 byte = &cmd->initiator_channel; 1501 /* Debugging info for received commands */ 1502 last_byte = &cmd[1].initiator_channel; 1503 1504 i = 0; 1505 while (byte < last_byte) { 1506 if (i == 0) 1507 printf("\t"); 1508 printf("%#x", *byte++); 1509 i++; 1510 if (i == 8) { 1511 printf("\n"); 1512 i = 0; 1513 } else { 1514 printf(", "); 1515 } 1516 } 1517 } 1518 #endif 1519 1520 static int 1521 ahd_modevent(module_t mod, int type, void *data) 1522 { 1523 /* XXX Deal with busy status on unload. */ 1524 /* XXX Deal with unknown events */ 1525 return 0; 1526 } 1527 1528 static moduledata_t ahd_mod = { 1529 "ahd", 1530 ahd_modevent, 1531 NULL 1532 }; 1533 1534 /********************************** DDB Hooks *********************************/ 1535 #ifdef DDB 1536 static struct ahd_softc *ahd_ddb_softc; 1537 static int ahd_ddb_paused; 1538 static int ahd_ddb_paused_on_entry; 1539 DB_COMMAND(ahd_sunit, ahd_ddb_sunit) 1540 { 1541 struct ahd_softc *list_ahd; 1542 1543 ahd_ddb_softc = NULL; 1544 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1545 if (list_ahd->unit == addr) 1546 ahd_ddb_softc = list_ahd; 1547 } 1548 if (ahd_ddb_softc == NULL) 1549 db_error("No matching softc found!\n"); 1550 } 1551 1552 DB_COMMAND(ahd_pause, ahd_ddb_pause) 1553 { 1554 if (ahd_ddb_softc == NULL) { 1555 db_error("Must set unit with ahd_sunit first!\n"); 1556 return; 1557 } 1558 if (ahd_ddb_paused == 0) { 1559 ahd_ddb_paused++; 1560 if (ahd_is_paused(ahd_ddb_softc)) { 1561 ahd_ddb_paused_on_entry++; 1562 return; 1563 } 1564 ahd_pause(ahd_ddb_softc); 1565 } 1566 } 1567 1568 DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1569 { 1570 if (ahd_ddb_softc == NULL) { 1571 db_error("Must set unit with ahd_sunit first!\n"); 1572 return; 1573 } 1574 if (ahd_ddb_paused != 0) { 1575 ahd_ddb_paused = 0; 1576 if (ahd_ddb_paused_on_entry) 1577 return; 1578 ahd_unpause(ahd_ddb_softc); 1579 } else if (ahd_ddb_paused_on_entry != 0) { 1580 /* Two unpauses to clear a paused on entry. */ 1581 ahd_ddb_paused_on_entry = 0; 1582 ahd_unpause(ahd_ddb_softc); 1583 } 1584 } 1585 1586 DB_COMMAND(ahd_in, ahd_ddb_in) 1587 { 1588 int c; 1589 int size; 1590 1591 if (ahd_ddb_softc == NULL) { 1592 db_error("Must set unit with ahd_sunit first!\n"); 1593 return; 1594 } 1595 if (have_addr == 0) 1596 return; 1597 1598 size = 1; 1599 while ((c = *modif++) != '\0') { 1600 switch (c) { 1601 case 'b': 1602 size = 1; 1603 break; 1604 case 'w': 1605 size = 2; 1606 break; 1607 case 'l': 1608 size = 4; 1609 break; 1610 } 1611 } 1612 1613 if (count <= 0) 1614 count = 1; 1615 while (--count >= 0) { 1616 db_printf("%04lx (M)%x: \t", (u_long)addr, 1617 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1618 switch (size) { 1619 case 1: 1620 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1621 break; 1622 case 2: 1623 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1624 break; 1625 case 4: 1626 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1627 break; 1628 } 1629 } 1630 } 1631 1632 DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) 1633 { 1634 db_expr_t old_value; 1635 db_expr_t new_value; 1636 int size; 1637 1638 if (ahd_ddb_softc == NULL) { 1639 db_error("Must set unit with ahd_sunit first!\n"); 1640 return; 1641 } 1642 1643 switch (modif[0]) { 1644 case '\0': 1645 case 'b': 1646 size = 1; 1647 break; 1648 case 'h': 1649 size = 2; 1650 break; 1651 case 'l': 1652 size = 4; 1653 break; 1654 default: 1655 db_error("Unknown size\n"); 1656 return; 1657 } 1658 1659 while (db_expression(&new_value)) { 1660 switch (size) { 1661 default: 1662 case 1: 1663 old_value = ahd_inb(ahd_ddb_softc, addr); 1664 ahd_outb(ahd_ddb_softc, addr, new_value); 1665 break; 1666 case 2: 1667 old_value = ahd_inw(ahd_ddb_softc, addr); 1668 ahd_outw(ahd_ddb_softc, addr, new_value); 1669 break; 1670 case 4: 1671 old_value = ahd_inl(ahd_ddb_softc, addr); 1672 ahd_outl(ahd_ddb_softc, addr, new_value); 1673 break; 1674 } 1675 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1676 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1677 (u_long)old_value, (u_long)new_value); 1678 addr += size; 1679 } 1680 db_skip_to_eol(); 1681 } 1682 1683 DB_COMMAND(ahd_dump, ahd_ddb_dump) 1684 { 1685 if (ahd_ddb_softc == NULL) { 1686 db_error("Must set unit with ahd_sunit first!\n"); 1687 return; 1688 } 1689 ahd_dump_card_state(ahd_ddb_softc); 1690 } 1691 1692 #endif 1693 1694 1695 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1696 MODULE_DEPEND(ahd, cam, 1, 1, 1); 1697 MODULE_VERSION(ahd, 1);
Cache object: 27069b218ea0644787fac660f133f7f7
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