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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/5.3/sys/dev/aic7xxx/aic79xx_osm.c 133911 2004-08-17 00:14:31Z gibbs $"); 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(scb, aic_get_timeout(scb)); 285 } 286 287 ahd_print_path(ahd, scb); 288 printf("no longer in timeout, status = %x\n", 289 ccb->ccb_h.status); 290 } 291 } 292 293 /* Don't clobber any existing error state */ 294 if (aic_get_transaction_status(scb) == CAM_REQ_INPROG) { 295 ccb->ccb_h.status |= CAM_REQ_CMP; 296 } else if ((scb->flags & SCB_SENSE) != 0) { 297 /* 298 * We performed autosense retrieval. 299 * 300 * Zero any sense not transferred by the 301 * device. The SCSI spec mandates that any 302 * untransfered data should be assumed to be 303 * zero. Complete the 'bounce' of sense information 304 * through buffers accessible via bus-space by 305 * copying it into the clients csio. 306 */ 307 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 308 memcpy(&ccb->csio.sense_data, 309 ahd_get_sense_buf(ahd, scb), 310 /* XXX What size do we want to use??? */ 311 sizeof(ccb->csio.sense_data) 312 - ccb->csio.sense_resid); 313 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 314 } else if ((scb->flags & SCB_PKT_SENSE) != 0) { 315 struct scsi_status_iu_header *siu; 316 u_int sense_len; 317 int i; 318 319 /* 320 * Copy only the sense data into the provided buffer. 321 */ 322 siu = (struct scsi_status_iu_header *)scb->sense_data; 323 sense_len = MIN(scsi_4btoul(siu->sense_length), 324 sizeof(ccb->csio.sense_data)); 325 memset(&ccb->csio.sense_data, 0, sizeof(ccb->csio.sense_data)); 326 memcpy(&ccb->csio.sense_data, 327 ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu), 328 sense_len); 329 printf("Copied %d bytes of sense data offset %d:", sense_len, 330 SIU_SENSE_OFFSET(siu)); 331 for (i = 0; i < sense_len; i++) 332 printf(" 0x%x", ((uint8_t *)&ccb->csio.sense_data)[i]); 333 printf("\n"); 334 scb->io_ctx->ccb_h.status |= CAM_AUTOSNS_VALID; 335 } 336 ccb->ccb_h.status &= ~CAM_SIM_QUEUED; 337 ahd_free_scb(ahd, scb); 338 xpt_done(ccb); 339 } 340 341 static void 342 ahd_action(struct cam_sim *sim, union ccb *ccb) 343 { 344 struct ahd_softc *ahd; 345 #ifdef AHD_TARGET_MODE 346 struct ahd_tmode_lstate *lstate; 347 #endif 348 u_int target_id; 349 u_int our_id; 350 long s; 351 352 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ahd_action\n")); 353 354 ahd = (struct ahd_softc *)cam_sim_softc(sim); 355 356 target_id = ccb->ccb_h.target_id; 357 our_id = SIM_SCSI_ID(ahd, sim); 358 359 switch (ccb->ccb_h.func_code) { 360 /* Common cases first */ 361 #ifdef AHD_TARGET_MODE 362 case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */ 363 case XPT_CONT_TARGET_IO:/* Continue Host Target I/O Connection*/ 364 { 365 struct ahd_tmode_tstate *tstate; 366 cam_status status; 367 368 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 369 &lstate, TRUE); 370 371 if (status != CAM_REQ_CMP) { 372 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 373 /* Response from the black hole device */ 374 tstate = NULL; 375 lstate = ahd->black_hole; 376 } else { 377 ccb->ccb_h.status = status; 378 xpt_done(ccb); 379 break; 380 } 381 } 382 if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) { 383 384 ahd_lock(ahd, &s); 385 SLIST_INSERT_HEAD(&lstate->accept_tios, &ccb->ccb_h, 386 sim_links.sle); 387 ccb->ccb_h.status = CAM_REQ_INPROG; 388 if ((ahd->flags & AHD_TQINFIFO_BLOCKED) != 0) 389 ahd_run_tqinfifo(ahd, /*paused*/FALSE); 390 ahd_unlock(ahd, &s); 391 break; 392 } 393 394 /* 395 * The target_id represents the target we attempt to 396 * select. In target mode, this is the initiator of 397 * the original command. 398 */ 399 our_id = target_id; 400 target_id = ccb->csio.init_id; 401 /* FALLTHROUGH */ 402 } 403 #endif 404 case XPT_SCSI_IO: /* Execute the requested I/O operation */ 405 case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */ 406 { 407 struct scb *scb; 408 struct hardware_scb *hscb; 409 struct ahd_initiator_tinfo *tinfo; 410 struct ahd_tmode_tstate *tstate; 411 u_int col_idx; 412 413 if ((ahd->flags & AHD_INITIATORROLE) == 0 414 && (ccb->ccb_h.func_code == XPT_SCSI_IO 415 || ccb->ccb_h.func_code == XPT_RESET_DEV)) { 416 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 417 xpt_done(ccb); 418 return; 419 } 420 421 /* 422 * get an scb to use. 423 */ 424 ahd_lock(ahd, &s); 425 tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, 426 target_id, &tstate); 427 if ((ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) == 0 428 || (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0 429 || ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 430 col_idx = AHD_NEVER_COL_IDX; 431 } else { 432 col_idx = AHD_BUILD_COL_IDX(target_id, 433 ccb->ccb_h.target_lun); 434 } 435 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 436 437 xpt_freeze_simq(sim, /*count*/1); 438 ahd->flags |= AHD_RESOURCE_SHORTAGE; 439 ahd_unlock(ahd, &s); 440 ccb->ccb_h.status = CAM_REQUEUE_REQ; 441 xpt_done(ccb); 442 return; 443 } 444 ahd_unlock(ahd, &s); 445 446 hscb = scb->hscb; 447 448 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, 449 ("start scb(%p)\n", scb)); 450 scb->io_ctx = ccb; 451 /* 452 * So we can find the SCB when an abort is requested 453 */ 454 ccb->ccb_h.ccb_scb_ptr = scb; 455 456 /* 457 * Put all the arguments for the xfer in the scb 458 */ 459 hscb->control = 0; 460 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 461 hscb->lun = ccb->ccb_h.target_lun; 462 if (ccb->ccb_h.func_code == XPT_RESET_DEV) { 463 hscb->cdb_len = 0; 464 scb->flags |= SCB_DEVICE_RESET; 465 hscb->control |= MK_MESSAGE; 466 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 467 ahd_execute_scb(scb, NULL, 0, 0); 468 } else { 469 #ifdef AHD_TARGET_MODE 470 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 471 struct target_data *tdata; 472 473 tdata = &hscb->shared_data.tdata; 474 if (ahd->pending_device == lstate) 475 scb->flags |= SCB_TARGET_IMMEDIATE; 476 hscb->control |= TARGET_SCB; 477 tdata->target_phases = 0; 478 if ((ccb->ccb_h.flags & CAM_SEND_STATUS) != 0) { 479 tdata->target_phases |= SPHASE_PENDING; 480 tdata->scsi_status = 481 ccb->csio.scsi_status; 482 } 483 if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) 484 tdata->target_phases |= NO_DISCONNECT; 485 486 tdata->initiator_tag = 487 ahd_htole16(ccb->csio.tag_id); 488 } 489 #endif 490 hscb->task_management = 0; 491 if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID) 492 hscb->control |= ccb->csio.tag_action; 493 494 ahd_setup_data(ahd, sim, &ccb->csio, scb); 495 } 496 break; 497 } 498 #ifdef AHD_TARGET_MODE 499 case XPT_NOTIFY_ACK: 500 case XPT_IMMED_NOTIFY: 501 { 502 struct ahd_tmode_tstate *tstate; 503 struct ahd_tmode_lstate *lstate; 504 cam_status status; 505 506 status = ahd_find_tmode_devs(ahd, sim, ccb, &tstate, 507 &lstate, TRUE); 508 509 if (status != CAM_REQ_CMP) { 510 ccb->ccb_h.status = status; 511 xpt_done(ccb); 512 break; 513 } 514 SLIST_INSERT_HEAD(&lstate->immed_notifies, &ccb->ccb_h, 515 sim_links.sle); 516 ccb->ccb_h.status = CAM_REQ_INPROG; 517 ahd_send_lstate_events(ahd, lstate); 518 break; 519 } 520 case XPT_EN_LUN: /* Enable LUN as a target */ 521 ahd_handle_en_lun(ahd, sim, ccb); 522 xpt_done(ccb); 523 break; 524 #endif 525 case XPT_ABORT: /* Abort the specified CCB */ 526 { 527 ahd_abort_ccb(ahd, sim, ccb); 528 break; 529 } 530 case XPT_SET_TRAN_SETTINGS: 531 { 532 ahd_lock(ahd, &s); 533 ahd_set_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 534 SIM_CHANNEL(ahd, sim), &ccb->cts); 535 ahd_unlock(ahd, &s); 536 xpt_done(ccb); 537 break; 538 } 539 case XPT_GET_TRAN_SETTINGS: 540 /* Get default/user set transfer settings for the target */ 541 { 542 ahd_lock(ahd, &s); 543 ahd_get_tran_settings(ahd, SIM_SCSI_ID(ahd, sim), 544 SIM_CHANNEL(ahd, sim), &ccb->cts); 545 ahd_unlock(ahd, &s); 546 xpt_done(ccb); 547 break; 548 } 549 case XPT_CALC_GEOMETRY: 550 { 551 aic_calc_geometry(&ccb->ccg, ahd->flags & AHD_EXTENDED_TRANS_A); 552 xpt_done(ccb); 553 break; 554 } 555 case XPT_RESET_BUS: /* Reset the specified SCSI bus */ 556 { 557 int found; 558 559 ahd_lock(ahd, &s); 560 found = ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 561 /*initiate reset*/TRUE); 562 ahd_unlock(ahd, &s); 563 if (bootverbose) { 564 xpt_print_path(SIM_PATH(ahd, sim)); 565 printf("SCSI bus reset delivered. " 566 "%d SCBs aborted.\n", found); 567 } 568 ccb->ccb_h.status = CAM_REQ_CMP; 569 xpt_done(ccb); 570 break; 571 } 572 case XPT_TERM_IO: /* Terminate the I/O process */ 573 /* XXX Implement */ 574 ccb->ccb_h.status = CAM_REQ_INVALID; 575 xpt_done(ccb); 576 break; 577 case XPT_PATH_INQ: /* Path routing inquiry */ 578 { 579 struct ccb_pathinq *cpi = &ccb->cpi; 580 581 cpi->version_num = 1; /* XXX??? */ 582 cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE; 583 if ((ahd->features & AHD_WIDE) != 0) 584 cpi->hba_inquiry |= PI_WIDE_16; 585 if ((ahd->features & AHD_TARGETMODE) != 0) { 586 cpi->target_sprt = PIT_PROCESSOR 587 | PIT_DISCONNECT 588 | PIT_TERM_IO; 589 } else { 590 cpi->target_sprt = 0; 591 } 592 cpi->hba_misc = 0; 593 cpi->hba_eng_cnt = 0; 594 cpi->max_target = (ahd->features & AHD_WIDE) ? 15 : 7; 595 cpi->max_lun = AHD_NUM_LUNS - 1; 596 cpi->initiator_id = ahd->our_id; 597 if ((ahd->flags & AHD_RESET_BUS_A) == 0) { 598 cpi->hba_misc |= PIM_NOBUSRESET; 599 } 600 cpi->bus_id = cam_sim_bus(sim); 601 cpi->base_transfer_speed = 3300; 602 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); 603 strncpy(cpi->hba_vid, "Adaptec", HBA_IDLEN); 604 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); 605 cpi->unit_number = cam_sim_unit(sim); 606 #ifdef AHD_NEW_TRAN_SETTINGS 607 cpi->protocol = PROTO_SCSI; 608 cpi->protocol_version = SCSI_REV_2; 609 cpi->transport = XPORT_SPI; 610 cpi->transport_version = 2; 611 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_ST; 612 cpi->transport_version = 4; 613 cpi->xport_specific.spi.ppr_options = SID_SPI_CLOCK_DT_ST; 614 #endif 615 cpi->ccb_h.status = CAM_REQ_CMP; 616 xpt_done(ccb); 617 break; 618 } 619 default: 620 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 621 xpt_done(ccb); 622 break; 623 } 624 } 625 626 627 static void 628 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 629 struct ccb_trans_settings *cts) 630 { 631 #ifdef AHD_NEW_TRAN_SETTINGS 632 struct ahd_devinfo devinfo; 633 struct ccb_trans_settings_scsi *scsi; 634 struct ccb_trans_settings_spi *spi; 635 struct ahd_initiator_tinfo *tinfo; 636 struct ahd_tmode_tstate *tstate; 637 uint16_t *discenable; 638 uint16_t *tagenable; 639 u_int update_type; 640 641 scsi = &cts->proto_specific.scsi; 642 spi = &cts->xport_specific.spi; 643 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 644 cts->ccb_h.target_id, 645 cts->ccb_h.target_lun, 646 SIM_CHANNEL(ahd, sim), 647 ROLE_UNKNOWN); 648 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 649 devinfo.our_scsiid, 650 devinfo.target, &tstate); 651 update_type = 0; 652 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 653 update_type |= AHD_TRANS_GOAL; 654 discenable = &tstate->discenable; 655 tagenable = &tstate->tagenable; 656 tinfo->curr.protocol_version = cts->protocol_version; 657 tinfo->curr.transport_version = cts->transport_version; 658 tinfo->goal.protocol_version = cts->protocol_version; 659 tinfo->goal.transport_version = cts->transport_version; 660 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 661 update_type |= AHD_TRANS_USER; 662 discenable = &ahd->user_discenable; 663 tagenable = &ahd->user_tagenable; 664 tinfo->user.protocol_version = cts->protocol_version; 665 tinfo->user.transport_version = cts->transport_version; 666 } else { 667 cts->ccb_h.status = CAM_REQ_INVALID; 668 return; 669 } 670 671 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 672 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 673 *discenable |= devinfo.target_mask; 674 else 675 *discenable &= ~devinfo.target_mask; 676 } 677 678 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 679 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 680 *tagenable |= devinfo.target_mask; 681 else 682 *tagenable &= ~devinfo.target_mask; 683 } 684 685 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 686 ahd_validate_width(ahd, /*tinfo limit*/NULL, 687 &spi->bus_width, ROLE_UNKNOWN); 688 ahd_set_width(ahd, &devinfo, spi->bus_width, 689 update_type, /*paused*/FALSE); 690 } 691 692 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 693 if (update_type == AHD_TRANS_USER) 694 spi->ppr_options = tinfo->user.ppr_options; 695 else 696 spi->ppr_options = tinfo->goal.ppr_options; 697 } 698 699 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 700 if (update_type == AHD_TRANS_USER) 701 spi->sync_offset = tinfo->user.offset; 702 else 703 spi->sync_offset = tinfo->goal.offset; 704 } 705 706 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 707 if (update_type == AHD_TRANS_USER) 708 spi->sync_period = tinfo->user.period; 709 else 710 spi->sync_period = tinfo->goal.period; 711 } 712 713 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 714 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 715 u_int maxsync; 716 717 maxsync = AHD_SYNCRATE_MAX; 718 719 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 720 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 721 722 if ((*discenable & devinfo.target_mask) == 0) 723 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 724 725 ahd_find_syncrate(ahd, &spi->sync_period, 726 &spi->ppr_options, maxsync); 727 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 728 spi->sync_period, &spi->sync_offset, 729 spi->bus_width, ROLE_UNKNOWN); 730 731 /* We use a period of 0 to represent async */ 732 if (spi->sync_offset == 0) { 733 spi->sync_period = 0; 734 spi->ppr_options = 0; 735 } 736 737 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 738 spi->sync_offset, spi->ppr_options, 739 update_type, /*paused*/FALSE); 740 } 741 cts->ccb_h.status = CAM_REQ_CMP; 742 #else 743 struct ahd_devinfo devinfo; 744 struct ahd_initiator_tinfo *tinfo; 745 struct ahd_tmode_tstate *tstate; 746 uint16_t *discenable; 747 uint16_t *tagenable; 748 u_int update_type; 749 750 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 751 cts->ccb_h.target_id, 752 cts->ccb_h.target_lun, 753 SIM_CHANNEL(ahd, sim), 754 ROLE_UNKNOWN); 755 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 756 devinfo.our_scsiid, 757 devinfo.target, &tstate); 758 update_type = 0; 759 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) { 760 update_type |= AHD_TRANS_GOAL; 761 discenable = &tstate->discenable; 762 tagenable = &tstate->tagenable; 763 } else if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) { 764 update_type |= AHD_TRANS_USER; 765 discenable = &ahd->user_discenable; 766 tagenable = &ahd->user_tagenable; 767 } else { 768 cts->ccb_h.status = CAM_REQ_INVALID; 769 return; 770 } 771 772 if ((cts->valid & CCB_TRANS_DISC_VALID) != 0) { 773 if ((cts->flags & CCB_TRANS_DISC_ENB) != 0) 774 *discenable |= devinfo.target_mask; 775 else 776 *discenable &= ~devinfo.target_mask; 777 } 778 779 if ((cts->valid & CCB_TRANS_TQ_VALID) != 0) { 780 if ((cts->flags & CCB_TRANS_TAG_ENB) != 0) 781 *tagenable |= devinfo.target_mask; 782 else 783 *tagenable &= ~devinfo.target_mask; 784 } 785 786 if ((cts->valid & CCB_TRANS_BUS_WIDTH_VALID) != 0) { 787 ahd_validate_width(ahd, /*tinfo limit*/NULL, 788 &cts->bus_width, ROLE_UNKNOWN); 789 ahd_set_width(ahd, &devinfo, cts->bus_width, 790 update_type, /*paused*/FALSE); 791 } 792 793 if ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) == 0) { 794 if (update_type == AHD_TRANS_USER) 795 cts->sync_offset = tinfo->user.offset; 796 else 797 cts->sync_offset = tinfo->goal.offset; 798 } 799 800 if ((cts->valid & CCB_TRANS_SYNC_RATE_VALID) == 0) { 801 if (update_type == AHD_TRANS_USER) 802 cts->sync_period = tinfo->user.period; 803 else 804 cts->sync_period = tinfo->goal.period; 805 } 806 807 if (((cts->valid & CCB_TRANS_SYNC_RATE_VALID) != 0) 808 || ((cts->valid & CCB_TRANS_SYNC_OFFSET_VALID) != 0) 809 || ((cts->valid & CCB_TRANS_TQ_VALID) != 0) 810 || ((cts->valid & CCB_TRANS_DISC_VALID) != 0)) { 811 u_int ppr_options; 812 u_int maxsync; 813 814 maxsync = AHD_SYNCRATE_MAX; 815 ppr_options = 0; 816 if (cts->sync_period <= AHD_SYNCRATE_DT 817 && cts->bus_width == MSG_EXT_WDTR_BUS_16_BIT) { 818 ppr_options = tinfo->user.ppr_options 819 | MSG_EXT_PPR_DT_REQ; 820 } 821 822 if ((*tagenable & devinfo.target_mask) == 0 823 || (*discenable & devinfo.target_mask) == 0) 824 ppr_options &= ~MSG_EXT_PPR_IU_REQ; 825 826 ahd_find_syncrate(ahd, &cts->sync_period, 827 &ppr_options, maxsync); 828 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 829 cts->sync_period, &cts->sync_offset, 830 MSG_EXT_WDTR_BUS_8_BIT, 831 ROLE_UNKNOWN); 832 833 /* We use a period of 0 to represent async */ 834 if (cts->sync_offset == 0) { 835 cts->sync_period = 0; 836 ppr_options = 0; 837 } 838 839 if (ppr_options != 0 840 && tinfo->user.transport_version >= 3) { 841 tinfo->goal.transport_version = 842 tinfo->user.transport_version; 843 tinfo->curr.transport_version = 844 tinfo->user.transport_version; 845 } 846 847 ahd_set_syncrate(ahd, &devinfo, cts->sync_period, 848 cts->sync_offset, ppr_options, 849 update_type, /*paused*/FALSE); 850 } 851 cts->ccb_h.status = CAM_REQ_CMP; 852 #endif 853 } 854 855 static void 856 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 857 struct ccb_trans_settings *cts) 858 { 859 #ifdef AHD_NEW_TRAN_SETTINGS 860 struct ahd_devinfo devinfo; 861 struct ccb_trans_settings_scsi *scsi; 862 struct ccb_trans_settings_spi *spi; 863 struct ahd_initiator_tinfo *targ_info; 864 struct ahd_tmode_tstate *tstate; 865 struct ahd_transinfo *tinfo; 866 867 scsi = &cts->proto_specific.scsi; 868 spi = &cts->xport_specific.spi; 869 ahd_compile_devinfo(&devinfo, our_id, 870 cts->ccb_h.target_id, 871 cts->ccb_h.target_lun, 872 channel, ROLE_UNKNOWN); 873 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 874 devinfo.our_scsiid, 875 devinfo.target, &tstate); 876 877 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 878 tinfo = &targ_info->curr; 879 else 880 tinfo = &targ_info->user; 881 882 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 883 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 884 if (cts->type == CTS_TYPE_USER_SETTINGS) { 885 if ((ahd->user_discenable & devinfo.target_mask) != 0) 886 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 887 888 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 889 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 890 } else { 891 if ((tstate->discenable & devinfo.target_mask) != 0) 892 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 893 894 if ((tstate->tagenable & devinfo.target_mask) != 0) 895 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 896 } 897 cts->protocol_version = tinfo->protocol_version; 898 cts->transport_version = tinfo->transport_version; 899 900 spi->sync_period = tinfo->period; 901 spi->sync_offset = tinfo->offset; 902 spi->bus_width = tinfo->width; 903 spi->ppr_options = tinfo->ppr_options; 904 905 cts->protocol = PROTO_SCSI; 906 cts->transport = XPORT_SPI; 907 spi->valid = CTS_SPI_VALID_SYNC_RATE 908 | CTS_SPI_VALID_SYNC_OFFSET 909 | CTS_SPI_VALID_BUS_WIDTH 910 | CTS_SPI_VALID_PPR_OPTIONS; 911 912 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 913 scsi->valid = CTS_SCSI_VALID_TQ; 914 spi->valid |= CTS_SPI_VALID_DISC; 915 } else { 916 scsi->valid = 0; 917 } 918 919 cts->ccb_h.status = CAM_REQ_CMP; 920 #else 921 struct ahd_devinfo devinfo; 922 struct ahd_initiator_tinfo *targ_info; 923 struct ahd_tmode_tstate *tstate; 924 struct ahd_transinfo *tinfo; 925 926 ahd_compile_devinfo(&devinfo, our_id, 927 cts->ccb_h.target_id, 928 cts->ccb_h.target_lun, 929 channel, ROLE_UNKNOWN); 930 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 931 devinfo.our_scsiid, 932 devinfo.target, &tstate); 933 934 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) != 0) 935 tinfo = &targ_info->curr; 936 else 937 tinfo = &targ_info->user; 938 939 cts->flags &= ~(CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB); 940 if ((cts->flags & CCB_TRANS_CURRENT_SETTINGS) == 0) { 941 if ((ahd->user_discenable & devinfo.target_mask) != 0) 942 cts->flags |= CCB_TRANS_DISC_ENB; 943 944 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 945 cts->flags |= CCB_TRANS_TAG_ENB; 946 } else { 947 if ((tstate->discenable & devinfo.target_mask) != 0) 948 cts->flags |= CCB_TRANS_DISC_ENB; 949 950 if ((tstate->tagenable & devinfo.target_mask) != 0) 951 cts->flags |= CCB_TRANS_TAG_ENB; 952 } 953 cts->sync_period = tinfo->period; 954 cts->sync_offset = tinfo->offset; 955 cts->bus_width = tinfo->width; 956 957 cts->valid = CCB_TRANS_SYNC_RATE_VALID 958 | CCB_TRANS_SYNC_OFFSET_VALID 959 | CCB_TRANS_BUS_WIDTH_VALID; 960 961 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) 962 cts->valid |= CCB_TRANS_DISC_VALID|CCB_TRANS_TQ_VALID; 963 964 cts->ccb_h.status = CAM_REQ_CMP; 965 #endif 966 } 967 968 static void 969 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 970 { 971 struct ahd_softc *ahd; 972 struct cam_sim *sim; 973 974 sim = (struct cam_sim *)callback_arg; 975 ahd = (struct ahd_softc *)cam_sim_softc(sim); 976 switch (code) { 977 case AC_LOST_DEVICE: 978 { 979 struct ahd_devinfo devinfo; 980 long s; 981 982 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 983 xpt_path_target_id(path), 984 xpt_path_lun_id(path), 985 SIM_CHANNEL(ahd, sim), 986 ROLE_UNKNOWN); 987 988 /* 989 * Revert to async/narrow transfers 990 * for the next device. 991 */ 992 ahd_lock(ahd, &s); 993 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 994 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 995 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 996 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 997 /*paused*/FALSE); 998 ahd_unlock(ahd, &s); 999 break; 1000 } 1001 default: 1002 break; 1003 } 1004 } 1005 1006 static void 1007 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 1008 int error) 1009 { 1010 struct scb *scb; 1011 union ccb *ccb; 1012 struct ahd_softc *ahd; 1013 struct ahd_initiator_tinfo *tinfo; 1014 struct ahd_tmode_tstate *tstate; 1015 u_int mask; 1016 u_long s; 1017 1018 scb = (struct scb *)arg; 1019 ccb = scb->io_ctx; 1020 ahd = scb->ahd_softc; 1021 1022 if (error != 0) { 1023 if (error == EFBIG) 1024 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 1025 else 1026 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 1027 if (nsegments != 0) 1028 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 1029 ahd_lock(ahd, &s); 1030 ahd_free_scb(ahd, scb); 1031 ahd_unlock(ahd, &s); 1032 xpt_done(ccb); 1033 return; 1034 } 1035 scb->sg_count = 0; 1036 if (nsegments != 0) { 1037 void *sg; 1038 bus_dmasync_op_t op; 1039 u_int i; 1040 1041 /* Copy the segments into our SG list */ 1042 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 1043 1044 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 1045 dm_segs->ds_len, 1046 /*last*/i == 1); 1047 dm_segs++; 1048 } 1049 1050 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 1051 op = BUS_DMASYNC_PREREAD; 1052 else 1053 op = BUS_DMASYNC_PREWRITE; 1054 1055 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 1056 1057 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 1058 struct target_data *tdata; 1059 1060 tdata = &scb->hscb->shared_data.tdata; 1061 tdata->target_phases |= DPHASE_PENDING; 1062 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 1063 tdata->data_phase = P_DATAOUT; 1064 else 1065 tdata->data_phase = P_DATAIN; 1066 } 1067 } 1068 1069 ahd_lock(ahd, &s); 1070 1071 /* 1072 * Last time we need to check if this SCB needs to 1073 * be aborted. 1074 */ 1075 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 1076 if (nsegments != 0) 1077 bus_dmamap_unload(ahd->buffer_dmat, 1078 scb->dmamap); 1079 ahd_free_scb(ahd, scb); 1080 ahd_unlock(ahd, &s); 1081 xpt_done(ccb); 1082 return; 1083 } 1084 1085 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 1086 SCSIID_OUR_ID(scb->hscb->scsiid), 1087 SCSIID_TARGET(ahd, scb->hscb->scsiid), 1088 &tstate); 1089 1090 mask = SCB_GET_TARGET_MASK(ahd, scb); 1091 1092 if ((tstate->discenable & mask) != 0 1093 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 1094 scb->hscb->control |= DISCENB; 1095 1096 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 1097 scb->flags |= SCB_PACKETIZED; 1098 if (scb->hscb->task_management != 0) 1099 scb->hscb->control &= ~MK_MESSAGE; 1100 } 1101 1102 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 1103 && (tinfo->goal.width != 0 1104 || tinfo->goal.period != 0 1105 || tinfo->goal.ppr_options != 0)) { 1106 scb->flags |= SCB_NEGOTIATE; 1107 scb->hscb->control |= MK_MESSAGE; 1108 } else if ((tstate->auto_negotiate & mask) != 0) { 1109 scb->flags |= SCB_AUTO_NEGOTIATE; 1110 scb->hscb->control |= MK_MESSAGE; 1111 } 1112 1113 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 1114 1115 ccb->ccb_h.status |= CAM_SIM_QUEUED; 1116 1117 aic_scb_timer_start(scb); 1118 1119 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 1120 /* Define a mapping from our tag to the SCB. */ 1121 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 1122 ahd_pause(ahd); 1123 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 1124 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 1125 ahd_unpause(ahd); 1126 } else { 1127 ahd_queue_scb(ahd, scb); 1128 } 1129 1130 ahd_unlock(ahd, &s); 1131 } 1132 1133 static void 1134 ahd_poll(struct cam_sim *sim) 1135 { 1136 ahd_intr(cam_sim_softc(sim)); 1137 } 1138 1139 static void 1140 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 1141 struct ccb_scsiio *csio, struct scb *scb) 1142 { 1143 struct hardware_scb *hscb; 1144 struct ccb_hdr *ccb_h; 1145 1146 hscb = scb->hscb; 1147 ccb_h = &csio->ccb_h; 1148 1149 csio->resid = 0; 1150 csio->sense_resid = 0; 1151 if (ccb_h->func_code == XPT_SCSI_IO) { 1152 hscb->cdb_len = csio->cdb_len; 1153 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 1154 1155 if (hscb->cdb_len > MAX_CDB_LEN 1156 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 1157 u_long s; 1158 1159 /* 1160 * Should CAM start to support CDB sizes 1161 * greater than 16 bytes, we could use 1162 * the sense buffer to store the CDB. 1163 */ 1164 aic_set_transaction_status(scb, 1165 CAM_REQ_INVALID); 1166 ahd_lock(ahd, &s); 1167 ahd_free_scb(ahd, scb); 1168 ahd_unlock(ahd, &s); 1169 xpt_done((union ccb *)csio); 1170 return; 1171 } 1172 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 1173 hscb->shared_data.idata.cdb_from_host.cdbptr = 1174 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 1175 hscb->shared_data.idata.cdb_from_host.cdblen = 1176 csio->cdb_len; 1177 hscb->cdb_len |= SCB_CDB_LEN_PTR; 1178 } else { 1179 memcpy(hscb->shared_data.idata.cdb, 1180 csio->cdb_io.cdb_ptr, 1181 hscb->cdb_len); 1182 } 1183 } else { 1184 if (hscb->cdb_len > MAX_CDB_LEN) { 1185 u_long s; 1186 1187 aic_set_transaction_status(scb, 1188 CAM_REQ_INVALID); 1189 ahd_lock(ahd, &s); 1190 ahd_free_scb(ahd, scb); 1191 ahd_unlock(ahd, &s); 1192 xpt_done((union ccb *)csio); 1193 return; 1194 } 1195 memcpy(hscb->shared_data.idata.cdb, 1196 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1197 } 1198 } 1199 1200 /* Only use S/G if there is a transfer */ 1201 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1202 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1203 /* We've been given a pointer to a single buffer */ 1204 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1205 int s; 1206 int error; 1207 1208 s = splsoftvm(); 1209 error = bus_dmamap_load(ahd->buffer_dmat, 1210 scb->dmamap, 1211 csio->data_ptr, 1212 csio->dxfer_len, 1213 ahd_execute_scb, 1214 scb, /*flags*/0); 1215 if (error == EINPROGRESS) { 1216 /* 1217 * So as to maintain ordering, 1218 * freeze the controller queue 1219 * until our mapping is 1220 * returned. 1221 */ 1222 xpt_freeze_simq(sim, 1223 /*count*/1); 1224 scb->io_ctx->ccb_h.status |= 1225 CAM_RELEASE_SIMQ; 1226 } 1227 splx(s); 1228 } else { 1229 struct bus_dma_segment seg; 1230 1231 /* Pointer to physical buffer */ 1232 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE) 1233 panic("ahd_setup_data - Transfer size " 1234 "larger than can device max"); 1235 1236 seg.ds_addr = 1237 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1238 seg.ds_len = csio->dxfer_len; 1239 ahd_execute_scb(scb, &seg, 1, 0); 1240 } 1241 } else { 1242 struct bus_dma_segment *segs; 1243 1244 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1245 panic("ahd_setup_data - Physical segment " 1246 "pointers unsupported"); 1247 1248 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1249 panic("ahd_setup_data - Virtual segment " 1250 "addresses unsupported"); 1251 1252 /* Just use the segments provided */ 1253 segs = (struct bus_dma_segment *)csio->data_ptr; 1254 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0); 1255 } 1256 } else { 1257 ahd_execute_scb(scb, NULL, 0, 0); 1258 } 1259 } 1260 1261 static void 1262 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1263 { 1264 union ccb *abort_ccb; 1265 1266 abort_ccb = ccb->cab.abort_ccb; 1267 switch (abort_ccb->ccb_h.func_code) { 1268 #ifdef AHD_TARGET_MODE 1269 case XPT_ACCEPT_TARGET_IO: 1270 case XPT_IMMED_NOTIFY: 1271 case XPT_CONT_TARGET_IO: 1272 { 1273 struct ahd_tmode_tstate *tstate; 1274 struct ahd_tmode_lstate *lstate; 1275 struct ccb_hdr_slist *list; 1276 cam_status status; 1277 1278 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1279 &lstate, TRUE); 1280 1281 if (status != CAM_REQ_CMP) { 1282 ccb->ccb_h.status = status; 1283 break; 1284 } 1285 1286 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1287 list = &lstate->accept_tios; 1288 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1289 list = &lstate->immed_notifies; 1290 else 1291 list = NULL; 1292 1293 if (list != NULL) { 1294 struct ccb_hdr *curelm; 1295 int found; 1296 1297 curelm = SLIST_FIRST(list); 1298 found = 0; 1299 if (curelm == &abort_ccb->ccb_h) { 1300 found = 1; 1301 SLIST_REMOVE_HEAD(list, sim_links.sle); 1302 } else { 1303 while(curelm != NULL) { 1304 struct ccb_hdr *nextelm; 1305 1306 nextelm = 1307 SLIST_NEXT(curelm, sim_links.sle); 1308 1309 if (nextelm == &abort_ccb->ccb_h) { 1310 found = 1; 1311 SLIST_NEXT(curelm, 1312 sim_links.sle) = 1313 SLIST_NEXT(nextelm, 1314 sim_links.sle); 1315 break; 1316 } 1317 curelm = nextelm; 1318 } 1319 } 1320 1321 if (found) { 1322 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1323 xpt_done(abort_ccb); 1324 ccb->ccb_h.status = CAM_REQ_CMP; 1325 } else { 1326 xpt_print_path(abort_ccb->ccb_h.path); 1327 printf("Not found\n"); 1328 ccb->ccb_h.status = CAM_PATH_INVALID; 1329 } 1330 break; 1331 } 1332 /* FALLTHROUGH */ 1333 } 1334 #endif 1335 case XPT_SCSI_IO: 1336 /* XXX Fully implement the hard ones */ 1337 ccb->ccb_h.status = CAM_UA_ABORT; 1338 break; 1339 default: 1340 ccb->ccb_h.status = CAM_REQ_INVALID; 1341 break; 1342 } 1343 xpt_done(ccb); 1344 } 1345 1346 void 1347 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1348 u_int lun, ac_code code, void *opt_arg) 1349 { 1350 struct ccb_trans_settings cts; 1351 struct cam_path *path; 1352 void *arg; 1353 int error; 1354 1355 arg = NULL; 1356 error = ahd_create_path(ahd, channel, target, lun, &path); 1357 1358 if (error != CAM_REQ_CMP) 1359 return; 1360 1361 switch (code) { 1362 case AC_TRANSFER_NEG: 1363 { 1364 #ifdef AHD_NEW_TRAN_SETTINGS 1365 struct ccb_trans_settings_scsi *scsi; 1366 1367 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1368 scsi = &cts.proto_specific.scsi; 1369 #else 1370 cts.flags = CCB_TRANS_CURRENT_SETTINGS; 1371 #endif 1372 cts.ccb_h.path = path; 1373 cts.ccb_h.target_id = target; 1374 cts.ccb_h.target_lun = lun; 1375 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1376 arg = &cts; 1377 #ifdef AHD_NEW_TRAN_SETTINGS 1378 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1379 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1380 #else 1381 cts.valid &= ~CCB_TRANS_TQ_VALID; 1382 cts.flags &= ~CCB_TRANS_TAG_ENB; 1383 #endif 1384 if (opt_arg == NULL) 1385 break; 1386 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1387 #ifdef AHD_NEW_TRAN_SETTINGS 1388 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1389 scsi->valid |= CTS_SCSI_VALID_TQ; 1390 #else 1391 cts.flags |= CCB_TRANS_TAG_ENB; 1392 cts.valid |= CCB_TRANS_TQ_VALID; 1393 #endif 1394 break; 1395 } 1396 case AC_SENT_BDR: 1397 case AC_BUS_RESET: 1398 break; 1399 default: 1400 panic("ahd_send_async: Unexpected async event"); 1401 } 1402 xpt_async(code, path, arg); 1403 xpt_free_path(path); 1404 } 1405 1406 void 1407 ahd_platform_set_tags(struct ahd_softc *ahd, 1408 struct ahd_devinfo *devinfo, int enable) 1409 { 1410 } 1411 1412 int 1413 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1414 { 1415 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1416 M_NOWAIT | M_ZERO); 1417 if (ahd->platform_data == NULL) 1418 return (ENOMEM); 1419 return (0); 1420 } 1421 1422 void 1423 ahd_platform_free(struct ahd_softc *ahd) 1424 { 1425 struct ahd_platform_data *pdata; 1426 1427 pdata = ahd->platform_data; 1428 if (pdata != NULL) { 1429 if (pdata->regs[0] != NULL) 1430 bus_release_resource(ahd->dev_softc, 1431 pdata->regs_res_type[0], 1432 pdata->regs_res_id[0], 1433 pdata->regs[0]); 1434 1435 if (pdata->regs[1] != NULL) 1436 bus_release_resource(ahd->dev_softc, 1437 pdata->regs_res_type[1], 1438 pdata->regs_res_id[1], 1439 pdata->regs[1]); 1440 1441 if (pdata->irq != NULL) 1442 bus_release_resource(ahd->dev_softc, 1443 pdata->irq_res_type, 1444 0, pdata->irq); 1445 1446 if (pdata->sim != NULL) { 1447 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1448 xpt_free_path(pdata->path); 1449 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1450 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1451 } 1452 if (pdata->eh != NULL) 1453 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1454 free(ahd->platform_data, M_DEVBUF); 1455 } 1456 } 1457 1458 int 1459 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1460 { 1461 /* We don't sort softcs under FreeBSD so report equal always */ 1462 return (0); 1463 } 1464 1465 int 1466 ahd_detach(device_t dev) 1467 { 1468 struct ahd_softc *ahd; 1469 u_long l; 1470 u_long s; 1471 1472 ahd_list_lock(&l); 1473 device_printf(dev, "detaching device\n"); 1474 ahd = device_get_softc(dev); 1475 ahd = ahd_find_softc(ahd); 1476 if (ahd == NULL) { 1477 device_printf(dev, "aic7xxx already detached\n"); 1478 ahd_list_unlock(&l); 1479 return (ENOENT); 1480 } 1481 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1482 ahd_list_unlock(&l); 1483 ahd_lock(ahd, &s); 1484 ahd_intr_enable(ahd, FALSE); 1485 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1486 ahd_unlock(ahd, &s); 1487 ahd_free(ahd); 1488 return (0); 1489 } 1490 1491 #if UNUSED 1492 static void 1493 ahd_dump_targcmd(struct target_cmd *cmd) 1494 { 1495 uint8_t *byte; 1496 uint8_t *last_byte; 1497 int i; 1498 1499 byte = &cmd->initiator_channel; 1500 /* Debugging info for received commands */ 1501 last_byte = &cmd[1].initiator_channel; 1502 1503 i = 0; 1504 while (byte < last_byte) { 1505 if (i == 0) 1506 printf("\t"); 1507 printf("%#x", *byte++); 1508 i++; 1509 if (i == 8) { 1510 printf("\n"); 1511 i = 0; 1512 } else { 1513 printf(", "); 1514 } 1515 } 1516 } 1517 #endif 1518 1519 static int 1520 ahd_modevent(module_t mod, int type, void *data) 1521 { 1522 /* XXX Deal with busy status on unload. */ 1523 /* XXX Deal with unknown events */ 1524 return 0; 1525 } 1526 1527 static moduledata_t ahd_mod = { 1528 "ahd", 1529 ahd_modevent, 1530 NULL 1531 }; 1532 1533 /********************************** DDB Hooks *********************************/ 1534 #ifdef DDB 1535 static struct ahd_softc *ahd_ddb_softc; 1536 static int ahd_ddb_paused; 1537 static int ahd_ddb_paused_on_entry; 1538 DB_COMMAND(ahd_sunit, ahd_ddb_sunit) 1539 { 1540 struct ahd_softc *list_ahd; 1541 1542 ahd_ddb_softc = NULL; 1543 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1544 if (list_ahd->unit == addr) 1545 ahd_ddb_softc = list_ahd; 1546 } 1547 if (ahd_ddb_softc == NULL) 1548 db_error("No matching softc found!\n"); 1549 } 1550 1551 DB_COMMAND(ahd_pause, ahd_ddb_pause) 1552 { 1553 if (ahd_ddb_softc == NULL) { 1554 db_error("Must set unit with ahd_sunit first!\n"); 1555 return; 1556 } 1557 if (ahd_ddb_paused == 0) { 1558 ahd_ddb_paused++; 1559 if (ahd_is_paused(ahd_ddb_softc)) { 1560 ahd_ddb_paused_on_entry++; 1561 return; 1562 } 1563 ahd_pause(ahd_ddb_softc); 1564 } 1565 } 1566 1567 DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1568 { 1569 if (ahd_ddb_softc == NULL) { 1570 db_error("Must set unit with ahd_sunit first!\n"); 1571 return; 1572 } 1573 if (ahd_ddb_paused != 0) { 1574 ahd_ddb_paused = 0; 1575 if (ahd_ddb_paused_on_entry) 1576 return; 1577 ahd_unpause(ahd_ddb_softc); 1578 } else if (ahd_ddb_paused_on_entry != 0) { 1579 /* Two unpauses to clear a paused on entry. */ 1580 ahd_ddb_paused_on_entry = 0; 1581 ahd_unpause(ahd_ddb_softc); 1582 } 1583 } 1584 1585 DB_COMMAND(ahd_in, ahd_ddb_in) 1586 { 1587 int c; 1588 int size; 1589 1590 if (ahd_ddb_softc == NULL) { 1591 db_error("Must set unit with ahd_sunit first!\n"); 1592 return; 1593 } 1594 if (have_addr == 0) 1595 return; 1596 1597 size = 1; 1598 while ((c = *modif++) != '\0') { 1599 switch (c) { 1600 case 'b': 1601 size = 1; 1602 break; 1603 case 'w': 1604 size = 2; 1605 break; 1606 case 'l': 1607 size = 4; 1608 break; 1609 } 1610 } 1611 1612 if (count <= 0) 1613 count = 1; 1614 while (--count >= 0) { 1615 db_printf("%04lx (M)%x: \t", (u_long)addr, 1616 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1617 switch (size) { 1618 case 1: 1619 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1620 break; 1621 case 2: 1622 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1623 break; 1624 case 4: 1625 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1626 break; 1627 } 1628 } 1629 } 1630 1631 DB_SET(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) 1632 { 1633 db_expr_t old_value; 1634 db_expr_t new_value; 1635 int size; 1636 1637 if (ahd_ddb_softc == NULL) { 1638 db_error("Must set unit with ahd_sunit first!\n"); 1639 return; 1640 } 1641 1642 switch (modif[0]) { 1643 case '\0': 1644 case 'b': 1645 size = 1; 1646 break; 1647 case 'h': 1648 size = 2; 1649 break; 1650 case 'l': 1651 size = 4; 1652 break; 1653 default: 1654 db_error("Unknown size\n"); 1655 return; 1656 } 1657 1658 while (db_expression(&new_value)) { 1659 switch (size) { 1660 default: 1661 case 1: 1662 old_value = ahd_inb(ahd_ddb_softc, addr); 1663 ahd_outb(ahd_ddb_softc, addr, new_value); 1664 break; 1665 case 2: 1666 old_value = ahd_inw(ahd_ddb_softc, addr); 1667 ahd_outw(ahd_ddb_softc, addr, new_value); 1668 break; 1669 case 4: 1670 old_value = ahd_inl(ahd_ddb_softc, addr); 1671 ahd_outl(ahd_ddb_softc, addr, new_value); 1672 break; 1673 } 1674 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1675 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1676 (u_long)old_value, (u_long)new_value); 1677 addr += size; 1678 } 1679 db_skip_to_eol(); 1680 } 1681 1682 DB_COMMAND(ahd_dump, ahd_ddb_dump) 1683 { 1684 if (ahd_ddb_softc == NULL) { 1685 db_error("Must set unit with ahd_sunit first!\n"); 1686 return; 1687 } 1688 ahd_dump_card_state(ahd_ddb_softc); 1689 } 1690 1691 #endif 1692 1693 1694 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1695 MODULE_DEPEND(ahd, cam, 1, 1, 1); 1696 MODULE_VERSION(ahd, 1);
Cache object: 355082b433be35b144e0ca10d13fc33b
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