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("$FreeBSD$"); 37 38 #include <dev/aic7xxx/aic79xx_osm.h> 39 #include <dev/aic7xxx/aic79xx_inline.h> 40 41 #include <sys/kthread.h> 42 43 #include "opt_ddb.h" 44 #ifdef DDB 45 #include <ddb/ddb.h> 46 #endif 47 48 #ifndef AHD_TMODE_ENABLE 49 #define AHD_TMODE_ENABLE 0 50 #endif 51 52 #include <dev/aic7xxx/aic_osm_lib.c> 53 54 #define ccb_scb_ptr spriv_ptr0 55 56 #if 0 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, NULL, 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 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 cpi->ccb_h.status = CAM_REQ_CMP; 615 xpt_done(ccb); 616 break; 617 } 618 default: 619 ccb->ccb_h.status = CAM_PROVIDE_FAIL; 620 xpt_done(ccb); 621 break; 622 } 623 } 624 625 626 static void 627 ahd_set_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 628 struct ccb_trans_settings *cts) 629 { 630 struct ahd_devinfo devinfo; 631 struct ccb_trans_settings_scsi *scsi; 632 struct ccb_trans_settings_spi *spi; 633 struct ahd_initiator_tinfo *tinfo; 634 struct ahd_tmode_tstate *tstate; 635 uint16_t *discenable; 636 uint16_t *tagenable; 637 u_int update_type; 638 639 scsi = &cts->proto_specific.scsi; 640 spi = &cts->xport_specific.spi; 641 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 642 cts->ccb_h.target_id, 643 cts->ccb_h.target_lun, 644 SIM_CHANNEL(ahd, sim), 645 ROLE_UNKNOWN); 646 tinfo = ahd_fetch_transinfo(ahd, devinfo.channel, 647 devinfo.our_scsiid, 648 devinfo.target, &tstate); 649 update_type = 0; 650 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) { 651 update_type |= AHD_TRANS_GOAL; 652 discenable = &tstate->discenable; 653 tagenable = &tstate->tagenable; 654 tinfo->curr.protocol_version = cts->protocol_version; 655 tinfo->curr.transport_version = cts->transport_version; 656 tinfo->goal.protocol_version = cts->protocol_version; 657 tinfo->goal.transport_version = cts->transport_version; 658 } else if (cts->type == CTS_TYPE_USER_SETTINGS) { 659 update_type |= AHD_TRANS_USER; 660 discenable = &ahd->user_discenable; 661 tagenable = &ahd->user_tagenable; 662 tinfo->user.protocol_version = cts->protocol_version; 663 tinfo->user.transport_version = cts->transport_version; 664 } else { 665 cts->ccb_h.status = CAM_REQ_INVALID; 666 return; 667 } 668 669 if ((spi->valid & CTS_SPI_VALID_DISC) != 0) { 670 if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0) 671 *discenable |= devinfo.target_mask; 672 else 673 *discenable &= ~devinfo.target_mask; 674 } 675 676 if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) { 677 if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0) 678 *tagenable |= devinfo.target_mask; 679 else 680 *tagenable &= ~devinfo.target_mask; 681 } 682 683 if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) { 684 ahd_validate_width(ahd, /*tinfo limit*/NULL, 685 &spi->bus_width, ROLE_UNKNOWN); 686 ahd_set_width(ahd, &devinfo, spi->bus_width, 687 update_type, /*paused*/FALSE); 688 } 689 690 if ((spi->valid & CTS_SPI_VALID_PPR_OPTIONS) == 0) { 691 if (update_type == AHD_TRANS_USER) 692 spi->ppr_options = tinfo->user.ppr_options; 693 else 694 spi->ppr_options = tinfo->goal.ppr_options; 695 } 696 697 if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) == 0) { 698 if (update_type == AHD_TRANS_USER) 699 spi->sync_offset = tinfo->user.offset; 700 else 701 spi->sync_offset = tinfo->goal.offset; 702 } 703 704 if ((spi->valid & CTS_SPI_VALID_SYNC_RATE) == 0) { 705 if (update_type == AHD_TRANS_USER) 706 spi->sync_period = tinfo->user.period; 707 else 708 spi->sync_period = tinfo->goal.period; 709 } 710 711 if (((spi->valid & CTS_SPI_VALID_SYNC_RATE) != 0) 712 || ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) != 0)) { 713 u_int maxsync; 714 715 maxsync = AHD_SYNCRATE_MAX; 716 717 if (spi->bus_width != MSG_EXT_WDTR_BUS_16_BIT) 718 spi->ppr_options &= ~MSG_EXT_PPR_DT_REQ; 719 720 if ((*discenable & devinfo.target_mask) == 0) 721 spi->ppr_options &= ~MSG_EXT_PPR_IU_REQ; 722 723 ahd_find_syncrate(ahd, &spi->sync_period, 724 &spi->ppr_options, maxsync); 725 ahd_validate_offset(ahd, /*tinfo limit*/NULL, 726 spi->sync_period, &spi->sync_offset, 727 spi->bus_width, ROLE_UNKNOWN); 728 729 /* We use a period of 0 to represent async */ 730 if (spi->sync_offset == 0) { 731 spi->sync_period = 0; 732 spi->ppr_options = 0; 733 } 734 735 ahd_set_syncrate(ahd, &devinfo, spi->sync_period, 736 spi->sync_offset, spi->ppr_options, 737 update_type, /*paused*/FALSE); 738 } 739 cts->ccb_h.status = CAM_REQ_CMP; 740 } 741 742 static void 743 ahd_get_tran_settings(struct ahd_softc *ahd, int our_id, char channel, 744 struct ccb_trans_settings *cts) 745 { 746 struct ahd_devinfo devinfo; 747 struct ccb_trans_settings_scsi *scsi; 748 struct ccb_trans_settings_spi *spi; 749 struct ahd_initiator_tinfo *targ_info; 750 struct ahd_tmode_tstate *tstate; 751 struct ahd_transinfo *tinfo; 752 753 scsi = &cts->proto_specific.scsi; 754 spi = &cts->xport_specific.spi; 755 ahd_compile_devinfo(&devinfo, our_id, 756 cts->ccb_h.target_id, 757 cts->ccb_h.target_lun, 758 channel, ROLE_UNKNOWN); 759 targ_info = ahd_fetch_transinfo(ahd, devinfo.channel, 760 devinfo.our_scsiid, 761 devinfo.target, &tstate); 762 763 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) 764 tinfo = &targ_info->curr; 765 else 766 tinfo = &targ_info->user; 767 768 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 769 spi->flags &= ~CTS_SPI_FLAGS_DISC_ENB; 770 if (cts->type == CTS_TYPE_USER_SETTINGS) { 771 if ((ahd->user_discenable & devinfo.target_mask) != 0) 772 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 773 774 if ((ahd->user_tagenable & devinfo.target_mask) != 0) 775 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 776 } else { 777 if ((tstate->discenable & devinfo.target_mask) != 0) 778 spi->flags |= CTS_SPI_FLAGS_DISC_ENB; 779 780 if ((tstate->tagenable & devinfo.target_mask) != 0) 781 scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB; 782 } 783 cts->protocol_version = tinfo->protocol_version; 784 cts->transport_version = tinfo->transport_version; 785 786 spi->sync_period = tinfo->period; 787 spi->sync_offset = tinfo->offset; 788 spi->bus_width = tinfo->width; 789 spi->ppr_options = tinfo->ppr_options; 790 791 cts->protocol = PROTO_SCSI; 792 cts->transport = XPORT_SPI; 793 spi->valid = CTS_SPI_VALID_SYNC_RATE 794 | CTS_SPI_VALID_SYNC_OFFSET 795 | CTS_SPI_VALID_BUS_WIDTH 796 | CTS_SPI_VALID_PPR_OPTIONS; 797 798 if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) { 799 scsi->valid = CTS_SCSI_VALID_TQ; 800 spi->valid |= CTS_SPI_VALID_DISC; 801 } else { 802 scsi->valid = 0; 803 } 804 805 cts->ccb_h.status = CAM_REQ_CMP; 806 } 807 808 static void 809 ahd_async(void *callback_arg, uint32_t code, struct cam_path *path, void *arg) 810 { 811 struct ahd_softc *ahd; 812 struct cam_sim *sim; 813 814 sim = (struct cam_sim *)callback_arg; 815 ahd = (struct ahd_softc *)cam_sim_softc(sim); 816 switch (code) { 817 case AC_LOST_DEVICE: 818 { 819 struct ahd_devinfo devinfo; 820 long s; 821 822 ahd_compile_devinfo(&devinfo, SIM_SCSI_ID(ahd, sim), 823 xpt_path_target_id(path), 824 xpt_path_lun_id(path), 825 SIM_CHANNEL(ahd, sim), 826 ROLE_UNKNOWN); 827 828 /* 829 * Revert to async/narrow transfers 830 * for the next device. 831 */ 832 ahd_lock(ahd, &s); 833 ahd_set_width(ahd, &devinfo, MSG_EXT_WDTR_BUS_8_BIT, 834 AHD_TRANS_GOAL|AHD_TRANS_CUR, /*paused*/FALSE); 835 ahd_set_syncrate(ahd, &devinfo, /*period*/0, /*offset*/0, 836 /*ppr_options*/0, AHD_TRANS_GOAL|AHD_TRANS_CUR, 837 /*paused*/FALSE); 838 ahd_unlock(ahd, &s); 839 break; 840 } 841 default: 842 break; 843 } 844 } 845 846 static void 847 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments, 848 int error) 849 { 850 struct scb *scb; 851 union ccb *ccb; 852 struct ahd_softc *ahd; 853 struct ahd_initiator_tinfo *tinfo; 854 struct ahd_tmode_tstate *tstate; 855 u_int mask; 856 u_long s; 857 858 scb = (struct scb *)arg; 859 ccb = scb->io_ctx; 860 ahd = scb->ahd_softc; 861 862 if (error != 0) { 863 if (error == EFBIG) 864 aic_set_transaction_status(scb, CAM_REQ_TOO_BIG); 865 else 866 aic_set_transaction_status(scb, CAM_REQ_CMP_ERR); 867 if (nsegments != 0) 868 bus_dmamap_unload(ahd->buffer_dmat, scb->dmamap); 869 ahd_lock(ahd, &s); 870 ahd_free_scb(ahd, scb); 871 ahd_unlock(ahd, &s); 872 xpt_done(ccb); 873 return; 874 } 875 scb->sg_count = 0; 876 if (nsegments != 0) { 877 void *sg; 878 bus_dmasync_op_t op; 879 u_int i; 880 881 /* Copy the segments into our SG list */ 882 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 883 884 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 885 dm_segs->ds_len, 886 /*last*/i == 1); 887 dm_segs++; 888 } 889 890 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) 891 op = BUS_DMASYNC_PREREAD; 892 else 893 op = BUS_DMASYNC_PREWRITE; 894 895 bus_dmamap_sync(ahd->buffer_dmat, scb->dmamap, op); 896 897 if (ccb->ccb_h.func_code == XPT_CONT_TARGET_IO) { 898 struct target_data *tdata; 899 900 tdata = &scb->hscb->shared_data.tdata; 901 tdata->target_phases |= DPHASE_PENDING; 902 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) 903 tdata->data_phase = P_DATAOUT; 904 else 905 tdata->data_phase = P_DATAIN; 906 } 907 } 908 909 ahd_lock(ahd, &s); 910 911 /* 912 * Last time we need to check if this SCB needs to 913 * be aborted. 914 */ 915 if (aic_get_transaction_status(scb) != CAM_REQ_INPROG) { 916 if (nsegments != 0) 917 bus_dmamap_unload(ahd->buffer_dmat, 918 scb->dmamap); 919 ahd_free_scb(ahd, scb); 920 ahd_unlock(ahd, &s); 921 xpt_done(ccb); 922 return; 923 } 924 925 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 926 SCSIID_OUR_ID(scb->hscb->scsiid), 927 SCSIID_TARGET(ahd, scb->hscb->scsiid), 928 &tstate); 929 930 mask = SCB_GET_TARGET_MASK(ahd, scb); 931 932 if ((tstate->discenable & mask) != 0 933 && (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) == 0) 934 scb->hscb->control |= DISCENB; 935 936 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) { 937 scb->flags |= SCB_PACKETIZED; 938 if (scb->hscb->task_management != 0) 939 scb->hscb->control &= ~MK_MESSAGE; 940 } 941 942 if ((ccb->ccb_h.flags & CAM_NEGOTIATE) != 0 943 && (tinfo->goal.width != 0 944 || tinfo->goal.period != 0 945 || tinfo->goal.ppr_options != 0)) { 946 scb->flags |= SCB_NEGOTIATE; 947 scb->hscb->control |= MK_MESSAGE; 948 } else if ((tstate->auto_negotiate & mask) != 0) { 949 scb->flags |= SCB_AUTO_NEGOTIATE; 950 scb->hscb->control |= MK_MESSAGE; 951 } 952 953 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 954 955 ccb->ccb_h.status |= CAM_SIM_QUEUED; 956 957 aic_scb_timer_start(scb); 958 959 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 960 /* Define a mapping from our tag to the SCB. */ 961 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 962 ahd_pause(ahd); 963 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 964 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 965 ahd_unpause(ahd); 966 } else { 967 ahd_queue_scb(ahd, scb); 968 } 969 970 ahd_unlock(ahd, &s); 971 } 972 973 static void 974 ahd_poll(struct cam_sim *sim) 975 { 976 ahd_intr(cam_sim_softc(sim)); 977 } 978 979 static void 980 ahd_setup_data(struct ahd_softc *ahd, struct cam_sim *sim, 981 struct ccb_scsiio *csio, struct scb *scb) 982 { 983 struct hardware_scb *hscb; 984 struct ccb_hdr *ccb_h; 985 986 hscb = scb->hscb; 987 ccb_h = &csio->ccb_h; 988 989 csio->resid = 0; 990 csio->sense_resid = 0; 991 if (ccb_h->func_code == XPT_SCSI_IO) { 992 hscb->cdb_len = csio->cdb_len; 993 if ((ccb_h->flags & CAM_CDB_POINTER) != 0) { 994 995 if (hscb->cdb_len > MAX_CDB_LEN 996 && (ccb_h->flags & CAM_CDB_PHYS) == 0) { 997 u_long s; 998 999 /* 1000 * Should CAM start to support CDB sizes 1001 * greater than 16 bytes, we could use 1002 * the sense buffer to store the CDB. 1003 */ 1004 aic_set_transaction_status(scb, 1005 CAM_REQ_INVALID); 1006 ahd_lock(ahd, &s); 1007 ahd_free_scb(ahd, scb); 1008 ahd_unlock(ahd, &s); 1009 xpt_done((union ccb *)csio); 1010 return; 1011 } 1012 if ((ccb_h->flags & CAM_CDB_PHYS) != 0) { 1013 hscb->shared_data.idata.cdb_from_host.cdbptr = 1014 aic_htole64((uintptr_t)csio->cdb_io.cdb_ptr); 1015 hscb->shared_data.idata.cdb_from_host.cdblen = 1016 csio->cdb_len; 1017 hscb->cdb_len |= SCB_CDB_LEN_PTR; 1018 } else { 1019 memcpy(hscb->shared_data.idata.cdb, 1020 csio->cdb_io.cdb_ptr, 1021 hscb->cdb_len); 1022 } 1023 } else { 1024 if (hscb->cdb_len > MAX_CDB_LEN) { 1025 u_long s; 1026 1027 aic_set_transaction_status(scb, 1028 CAM_REQ_INVALID); 1029 ahd_lock(ahd, &s); 1030 ahd_free_scb(ahd, scb); 1031 ahd_unlock(ahd, &s); 1032 xpt_done((union ccb *)csio); 1033 return; 1034 } 1035 memcpy(hscb->shared_data.idata.cdb, 1036 csio->cdb_io.cdb_bytes, hscb->cdb_len); 1037 } 1038 } 1039 1040 /* Only use S/G if there is a transfer */ 1041 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) { 1042 if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { 1043 /* We've been given a pointer to a single buffer */ 1044 if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { 1045 int s; 1046 int error; 1047 1048 s = splsoftvm(); 1049 error = bus_dmamap_load(ahd->buffer_dmat, 1050 scb->dmamap, 1051 csio->data_ptr, 1052 csio->dxfer_len, 1053 ahd_execute_scb, 1054 scb, /*flags*/0); 1055 if (error == EINPROGRESS) { 1056 /* 1057 * So as to maintain ordering, 1058 * freeze the controller queue 1059 * until our mapping is 1060 * returned. 1061 */ 1062 xpt_freeze_simq(sim, 1063 /*count*/1); 1064 scb->io_ctx->ccb_h.status |= 1065 CAM_RELEASE_SIMQ; 1066 } 1067 splx(s); 1068 } else { 1069 struct bus_dma_segment seg; 1070 1071 /* Pointer to physical buffer */ 1072 if (csio->dxfer_len > AHD_MAXTRANSFER_SIZE) 1073 panic("ahd_setup_data - Transfer size " 1074 "larger than can device max"); 1075 1076 seg.ds_addr = 1077 (bus_addr_t)(vm_offset_t)csio->data_ptr; 1078 seg.ds_len = csio->dxfer_len; 1079 ahd_execute_scb(scb, &seg, 1, 0); 1080 } 1081 } else { 1082 struct bus_dma_segment *segs; 1083 1084 if ((ccb_h->flags & CAM_DATA_PHYS) != 0) 1085 panic("ahd_setup_data - Physical segment " 1086 "pointers unsupported"); 1087 1088 if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) 1089 panic("ahd_setup_data - Virtual segment " 1090 "addresses unsupported"); 1091 1092 /* Just use the segments provided */ 1093 segs = (struct bus_dma_segment *)csio->data_ptr; 1094 ahd_execute_scb(scb, segs, csio->sglist_cnt, 0); 1095 } 1096 } else { 1097 ahd_execute_scb(scb, NULL, 0, 0); 1098 } 1099 } 1100 1101 static void 1102 ahd_abort_ccb(struct ahd_softc *ahd, struct cam_sim *sim, union ccb *ccb) 1103 { 1104 union ccb *abort_ccb; 1105 1106 abort_ccb = ccb->cab.abort_ccb; 1107 switch (abort_ccb->ccb_h.func_code) { 1108 #ifdef AHD_TARGET_MODE 1109 case XPT_ACCEPT_TARGET_IO: 1110 case XPT_IMMED_NOTIFY: 1111 case XPT_CONT_TARGET_IO: 1112 { 1113 struct ahd_tmode_tstate *tstate; 1114 struct ahd_tmode_lstate *lstate; 1115 struct ccb_hdr_slist *list; 1116 cam_status status; 1117 1118 status = ahd_find_tmode_devs(ahd, sim, abort_ccb, &tstate, 1119 &lstate, TRUE); 1120 1121 if (status != CAM_REQ_CMP) { 1122 ccb->ccb_h.status = status; 1123 break; 1124 } 1125 1126 if (abort_ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) 1127 list = &lstate->accept_tios; 1128 else if (abort_ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) 1129 list = &lstate->immed_notifies; 1130 else 1131 list = NULL; 1132 1133 if (list != NULL) { 1134 struct ccb_hdr *curelm; 1135 int found; 1136 1137 curelm = SLIST_FIRST(list); 1138 found = 0; 1139 if (curelm == &abort_ccb->ccb_h) { 1140 found = 1; 1141 SLIST_REMOVE_HEAD(list, sim_links.sle); 1142 } else { 1143 while(curelm != NULL) { 1144 struct ccb_hdr *nextelm; 1145 1146 nextelm = 1147 SLIST_NEXT(curelm, sim_links.sle); 1148 1149 if (nextelm == &abort_ccb->ccb_h) { 1150 found = 1; 1151 SLIST_NEXT(curelm, 1152 sim_links.sle) = 1153 SLIST_NEXT(nextelm, 1154 sim_links.sle); 1155 break; 1156 } 1157 curelm = nextelm; 1158 } 1159 } 1160 1161 if (found) { 1162 abort_ccb->ccb_h.status = CAM_REQ_ABORTED; 1163 xpt_done(abort_ccb); 1164 ccb->ccb_h.status = CAM_REQ_CMP; 1165 } else { 1166 xpt_print_path(abort_ccb->ccb_h.path); 1167 printf("Not found\n"); 1168 ccb->ccb_h.status = CAM_PATH_INVALID; 1169 } 1170 break; 1171 } 1172 /* FALLTHROUGH */ 1173 } 1174 #endif 1175 case XPT_SCSI_IO: 1176 /* XXX Fully implement the hard ones */ 1177 ccb->ccb_h.status = CAM_UA_ABORT; 1178 break; 1179 default: 1180 ccb->ccb_h.status = CAM_REQ_INVALID; 1181 break; 1182 } 1183 xpt_done(ccb); 1184 } 1185 1186 void 1187 ahd_send_async(struct ahd_softc *ahd, char channel, u_int target, 1188 u_int lun, ac_code code, void *opt_arg) 1189 { 1190 struct ccb_trans_settings cts; 1191 struct cam_path *path; 1192 void *arg; 1193 int error; 1194 1195 arg = NULL; 1196 error = ahd_create_path(ahd, channel, target, lun, &path); 1197 1198 if (error != CAM_REQ_CMP) 1199 return; 1200 1201 switch (code) { 1202 case AC_TRANSFER_NEG: 1203 { 1204 struct ccb_trans_settings_scsi *scsi; 1205 1206 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1207 scsi = &cts.proto_specific.scsi; 1208 cts.ccb_h.path = path; 1209 cts.ccb_h.target_id = target; 1210 cts.ccb_h.target_lun = lun; 1211 ahd_get_tran_settings(ahd, ahd->our_id, channel, &cts); 1212 arg = &cts; 1213 scsi->valid &= ~CTS_SCSI_VALID_TQ; 1214 scsi->flags &= ~CTS_SCSI_FLAGS_TAG_ENB; 1215 if (opt_arg == NULL) 1216 break; 1217 if (*((ahd_queue_alg *)opt_arg) == AHD_QUEUE_TAGGED) 1218 scsi->flags |= ~CTS_SCSI_FLAGS_TAG_ENB; 1219 scsi->valid |= CTS_SCSI_VALID_TQ; 1220 break; 1221 } 1222 case AC_SENT_BDR: 1223 case AC_BUS_RESET: 1224 break; 1225 default: 1226 panic("ahd_send_async: Unexpected async event"); 1227 } 1228 xpt_async(code, path, arg); 1229 xpt_free_path(path); 1230 } 1231 1232 void 1233 ahd_platform_set_tags(struct ahd_softc *ahd, 1234 struct ahd_devinfo *devinfo, int enable) 1235 { 1236 } 1237 1238 int 1239 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 1240 { 1241 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 1242 M_NOWAIT | M_ZERO); 1243 if (ahd->platform_data == NULL) 1244 return (ENOMEM); 1245 return (0); 1246 } 1247 1248 void 1249 ahd_platform_free(struct ahd_softc *ahd) 1250 { 1251 struct ahd_platform_data *pdata; 1252 1253 pdata = ahd->platform_data; 1254 if (pdata != NULL) { 1255 if (pdata->regs[0] != NULL) 1256 bus_release_resource(ahd->dev_softc, 1257 pdata->regs_res_type[0], 1258 pdata->regs_res_id[0], 1259 pdata->regs[0]); 1260 1261 if (pdata->regs[1] != NULL) 1262 bus_release_resource(ahd->dev_softc, 1263 pdata->regs_res_type[1], 1264 pdata->regs_res_id[1], 1265 pdata->regs[1]); 1266 1267 if (pdata->irq != NULL) 1268 bus_release_resource(ahd->dev_softc, 1269 pdata->irq_res_type, 1270 0, pdata->irq); 1271 1272 if (pdata->sim != NULL) { 1273 xpt_async(AC_LOST_DEVICE, pdata->path, NULL); 1274 xpt_free_path(pdata->path); 1275 xpt_bus_deregister(cam_sim_path(pdata->sim)); 1276 cam_sim_free(pdata->sim, /*free_devq*/TRUE); 1277 } 1278 if (pdata->eh != NULL) 1279 EVENTHANDLER_DEREGISTER(shutdown_final, pdata->eh); 1280 free(ahd->platform_data, M_DEVBUF); 1281 } 1282 } 1283 1284 int 1285 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 1286 { 1287 /* We don't sort softcs under FreeBSD so report equal always */ 1288 return (0); 1289 } 1290 1291 int 1292 ahd_detach(device_t dev) 1293 { 1294 struct ahd_softc *ahd; 1295 u_long l; 1296 u_long s; 1297 1298 ahd_list_lock(&l); 1299 device_printf(dev, "detaching device\n"); 1300 ahd = device_get_softc(dev); 1301 ahd = ahd_find_softc(ahd); 1302 if (ahd == NULL) { 1303 device_printf(dev, "aic7xxx already detached\n"); 1304 ahd_list_unlock(&l); 1305 return (ENOENT); 1306 } 1307 TAILQ_REMOVE(&ahd_tailq, ahd, links); 1308 ahd_list_unlock(&l); 1309 ahd_lock(ahd, &s); 1310 ahd_intr_enable(ahd, FALSE); 1311 bus_teardown_intr(dev, ahd->platform_data->irq, ahd->platform_data->ih); 1312 ahd_unlock(ahd, &s); 1313 ahd_free(ahd); 1314 return (0); 1315 } 1316 1317 #if 0 1318 static void 1319 ahd_dump_targcmd(struct target_cmd *cmd) 1320 { 1321 uint8_t *byte; 1322 uint8_t *last_byte; 1323 int i; 1324 1325 byte = &cmd->initiator_channel; 1326 /* Debugging info for received commands */ 1327 last_byte = &cmd[1].initiator_channel; 1328 1329 i = 0; 1330 while (byte < last_byte) { 1331 if (i == 0) 1332 printf("\t"); 1333 printf("%#x", *byte++); 1334 i++; 1335 if (i == 8) { 1336 printf("\n"); 1337 i = 0; 1338 } else { 1339 printf(", "); 1340 } 1341 } 1342 } 1343 #endif 1344 1345 static int 1346 ahd_modevent(module_t mod, int type, void *data) 1347 { 1348 /* XXX Deal with busy status on unload. */ 1349 /* XXX Deal with unknown events */ 1350 return 0; 1351 } 1352 1353 static moduledata_t ahd_mod = { 1354 "ahd", 1355 ahd_modevent, 1356 NULL 1357 }; 1358 1359 /********************************** DDB Hooks *********************************/ 1360 #ifdef DDB 1361 static struct ahd_softc *ahd_ddb_softc; 1362 static int ahd_ddb_paused; 1363 static int ahd_ddb_paused_on_entry; 1364 DB_COMMAND(ahd_sunit, ahd_ddb_sunit) 1365 { 1366 struct ahd_softc *list_ahd; 1367 1368 ahd_ddb_softc = NULL; 1369 TAILQ_FOREACH(list_ahd, &ahd_tailq, links) { 1370 if (list_ahd->unit == addr) 1371 ahd_ddb_softc = list_ahd; 1372 } 1373 if (ahd_ddb_softc == NULL) 1374 db_error("No matching softc found!\n"); 1375 } 1376 1377 DB_COMMAND(ahd_pause, ahd_ddb_pause) 1378 { 1379 if (ahd_ddb_softc == NULL) { 1380 db_error("Must set unit with ahd_sunit first!\n"); 1381 return; 1382 } 1383 if (ahd_ddb_paused == 0) { 1384 ahd_ddb_paused++; 1385 if (ahd_is_paused(ahd_ddb_softc)) { 1386 ahd_ddb_paused_on_entry++; 1387 return; 1388 } 1389 ahd_pause(ahd_ddb_softc); 1390 } 1391 } 1392 1393 DB_COMMAND(ahd_unpause, ahd_ddb_unpause) 1394 { 1395 if (ahd_ddb_softc == NULL) { 1396 db_error("Must set unit with ahd_sunit first!\n"); 1397 return; 1398 } 1399 if (ahd_ddb_paused != 0) { 1400 ahd_ddb_paused = 0; 1401 if (ahd_ddb_paused_on_entry) 1402 return; 1403 ahd_unpause(ahd_ddb_softc); 1404 } else if (ahd_ddb_paused_on_entry != 0) { 1405 /* Two unpauses to clear a paused on entry. */ 1406 ahd_ddb_paused_on_entry = 0; 1407 ahd_unpause(ahd_ddb_softc); 1408 } 1409 } 1410 1411 DB_COMMAND(ahd_in, ahd_ddb_in) 1412 { 1413 int c; 1414 int size; 1415 1416 if (ahd_ddb_softc == NULL) { 1417 db_error("Must set unit with ahd_sunit first!\n"); 1418 return; 1419 } 1420 if (have_addr == 0) 1421 return; 1422 1423 size = 1; 1424 while ((c = *modif++) != '\0') { 1425 switch (c) { 1426 case 'b': 1427 size = 1; 1428 break; 1429 case 'w': 1430 size = 2; 1431 break; 1432 case 'l': 1433 size = 4; 1434 break; 1435 } 1436 } 1437 1438 if (count <= 0) 1439 count = 1; 1440 while (--count >= 0) { 1441 db_printf("%04lx (M)%x: \t", (u_long)addr, 1442 ahd_inb(ahd_ddb_softc, MODE_PTR)); 1443 switch (size) { 1444 case 1: 1445 db_printf("%02x\n", ahd_inb(ahd_ddb_softc, addr)); 1446 break; 1447 case 2: 1448 db_printf("%04x\n", ahd_inw(ahd_ddb_softc, addr)); 1449 break; 1450 case 4: 1451 db_printf("%08x\n", ahd_inl(ahd_ddb_softc, addr)); 1452 break; 1453 } 1454 } 1455 } 1456 1457 DB_FUNC(ahd_out, ahd_ddb_out, db_cmd_set, CS_MORE, NULL) 1458 { 1459 db_expr_t old_value; 1460 db_expr_t new_value; 1461 int size; 1462 1463 if (ahd_ddb_softc == NULL) { 1464 db_error("Must set unit with ahd_sunit first!\n"); 1465 return; 1466 } 1467 1468 switch (modif[0]) { 1469 case '\0': 1470 case 'b': 1471 size = 1; 1472 break; 1473 case 'h': 1474 size = 2; 1475 break; 1476 case 'l': 1477 size = 4; 1478 break; 1479 default: 1480 db_error("Unknown size\n"); 1481 return; 1482 } 1483 1484 while (db_expression(&new_value)) { 1485 switch (size) { 1486 default: 1487 case 1: 1488 old_value = ahd_inb(ahd_ddb_softc, addr); 1489 ahd_outb(ahd_ddb_softc, addr, new_value); 1490 break; 1491 case 2: 1492 old_value = ahd_inw(ahd_ddb_softc, addr); 1493 ahd_outw(ahd_ddb_softc, addr, new_value); 1494 break; 1495 case 4: 1496 old_value = ahd_inl(ahd_ddb_softc, addr); 1497 ahd_outl(ahd_ddb_softc, addr, new_value); 1498 break; 1499 } 1500 db_printf("%04lx (M)%x: \t0x%lx\t=\t0x%lx", 1501 (u_long)addr, ahd_inb(ahd_ddb_softc, MODE_PTR), 1502 (u_long)old_value, (u_long)new_value); 1503 addr += size; 1504 } 1505 db_skip_to_eol(); 1506 } 1507 1508 DB_COMMAND(ahd_dump, ahd_ddb_dump) 1509 { 1510 if (ahd_ddb_softc == NULL) { 1511 db_error("Must set unit with ahd_sunit first!\n"); 1512 return; 1513 } 1514 ahd_dump_card_state(ahd_ddb_softc); 1515 } 1516 1517 #endif 1518 1519 1520 DECLARE_MODULE(ahd, ahd_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1521 MODULE_DEPEND(ahd, cam, 1, 1, 1); 1522 MODULE_VERSION(ahd, 1); 1523