aic79xx_osm.c revision 1.7
1 /* $NetBSD: aic79xx_osm.c,v 1.7 2003/10/30 01:58:17 simonb Exp $ */ 2 3 /* 4 * Bus independent NetBSD shim for the aic7xxx based adaptec SCSI controllers 5 * 6 * Copyright (c) 1994-2002 Justin T. Gibbs. 7 * Copyright (c) 2001-2002 Adaptec Inc. 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions, and the following disclaimer, 15 * without modification. 16 * 2. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * Alternatively, this software may be distributed under the terms of the 20 * GNU Public License ("GPL"). 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 26 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * //depot/aic7xxx/freebsd/dev/aic7xxx/aic79xx_osm.c#26 $ 35 * 36 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.11 2003/05/04 00:20:07 gibbs Exp $ 37 */ 38 /* 39 * Ported from FreeBSD by Pascal Renauld, Network Storage Solutions, Inc. 40 * - April 2003 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: aic79xx_osm.c,v 1.7 2003/10/30 01:58:17 simonb Exp $"); 45 46 #include <dev/ic/aic79xx_osm.h> 47 #include <dev/ic/aic7xxx_cam.h> 48 #include <dev/ic/aic79xx_inline.h> 49 50 #ifndef AHD_TMODE_ENABLE 51 #define AHD_TMODE_ENABLE 0 52 #endif 53 54 static int ahd_ioctl(struct scsipi_channel *channel, u_long cmd, 55 caddr_t addr, int flag, struct proc *p); 56 static void ahd_action(struct scsipi_channel *chan, 57 scsipi_adapter_req_t req, void *arg); 58 static void ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, 59 int nsegments); 60 static int ahd_poll(struct ahd_softc *ahd, int wait); 61 static void ahd_setup_data(struct ahd_softc *ahd, struct scsipi_xfer *xs, 62 struct scb *scb); 63 64 #if NOT_YET 65 static void ahd_set_recoveryscb(struct ahd_softc *ahd, struct scb *scb); 66 #endif 67 68 /* 69 * Attach all the sub-devices we can find 70 */ 71 int 72 ahd_attach(struct ahd_softc *ahd) 73 { 74 int s; 75 char ahd_info[256]; 76 77 ahd_controller_info(ahd, ahd_info); 78 printf("%s: %s\n", ahd->sc_dev.dv_xname, ahd_info); 79 80 ahd_lock(ahd, &s); 81 82 ahd->sc_adapter.adapt_dev = &ahd->sc_dev; 83 ahd->sc_adapter.adapt_nchannels = 1; 84 85 ahd->sc_adapter.adapt_openings = AHD_MAX_QUEUE; 86 ahd->sc_adapter.adapt_max_periph = 32; 87 88 ahd->sc_adapter.adapt_ioctl = ahd_ioctl; 89 ahd->sc_adapter.adapt_minphys = ahd_minphys; 90 ahd->sc_adapter.adapt_request = ahd_action; 91 92 ahd->sc_channel.chan_adapter = &ahd->sc_adapter; 93 ahd->sc_channel.chan_bustype = &scsi_bustype; 94 ahd->sc_channel.chan_channel = 0; 95 ahd->sc_channel.chan_ntargets = AHD_NUM_TARGETS; 96 ahd->sc_channel.chan_nluns = 8 /*AHD_NUM_LUNS*/; 97 ahd->sc_channel.chan_id = ahd->our_id; 98 99 ahd->sc_child = config_found((void *)ahd, &ahd->sc_channel, scsiprint); 100 101 ahd_intr_enable(ahd, TRUE); 102 103 if (ahd->flags & AHD_RESET_BUS_A) 104 ahd_reset_channel(ahd, 'A', TRUE); 105 106 ahd_unlock(ahd, &s); 107 108 return (1); 109 } 110 111 static int 112 ahd_ioctl(struct scsipi_channel *channel, u_long cmd, 113 caddr_t addr, int flag, struct proc *p) 114 { 115 struct ahd_softc *ahd = (void *)channel->chan_adapter->adapt_dev; 116 int s, ret = ENOTTY; 117 118 switch (cmd) { 119 case SCBUSIORESET: 120 s = splbio(); 121 ahd_reset_channel(ahd, channel->chan_channel == 1 ? 'B' : 'A', TRUE); 122 splx(s); 123 ret = 0; 124 break; 125 default: 126 break; 127 } 128 129 return ret; 130 } 131 132 /* 133 * Catch an interrupt from the adapter 134 */ 135 void 136 ahd_platform_intr(void *arg) 137 { 138 struct ahd_softc *ahd; 139 140 ahd = (struct ahd_softc *)arg; 141 142 printf("%s; ahd_platform_intr\n", ahd_name(ahd)); 143 144 ahd_intr(ahd); 145 } 146 147 /* 148 * We have an scb which has been processed by the 149 * adaptor, now we look to see how the operation * went. 150 */ 151 void 152 ahd_done(struct ahd_softc *ahd, struct scb *scb) 153 { 154 struct scsipi_xfer *xs; 155 struct scsipi_periph *periph; 156 int s; 157 158 LIST_REMOVE(scb, pending_links); 159 160 xs = scb->xs; 161 periph = xs->xs_periph; 162 163 callout_stop(&scb->xs->xs_callout); 164 165 if (xs->datalen) { 166 int op; 167 168 if (xs->xs_control & XS_CTL_DATA_IN) 169 op = BUS_DMASYNC_POSTREAD; 170 else 171 op = BUS_DMASYNC_POSTWRITE; 172 173 bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0, 174 scb->dmamap->dm_mapsize, op); 175 bus_dmamap_unload(ahd->parent_dmat, scb->dmamap); 176 } 177 178 /* 179 * If the recovery SCB completes, we have to be 180 * out of our timeout. 181 */ 182 if ((scb->flags & SCB_RECOVERY_SCB) != 0) { 183 struct scb *list_scb; 184 185 /* 186 * We were able to complete the command successfully, 187 * so reinstate the timeouts for all other pending 188 * commands. 189 */ 190 LIST_FOREACH(list_scb, &ahd->pending_scbs, pending_links) { 191 struct scsipi_xfer *txs = list_scb->xs; 192 193 if (!(txs->xs_control & XS_CTL_POLL)) { 194 callout_reset(&txs->xs_callout, 195 (txs->timeout > 1000000) ? 196 (txs->timeout / 1000) * hz : 197 (txs->timeout * hz) / 1000, 198 ahd_timeout, list_scb); 199 } 200 } 201 202 if (ahd_get_transaction_status(scb) != XS_NOERROR) 203 ahd_set_transaction_status(scb, XS_TIMEOUT); 204 scsipi_printaddr(xs->xs_periph); 205 printf("%s: no longer in timeout, status = %x\n", 206 ahd_name(ahd), xs->status); 207 } 208 209 if (xs->error != XS_NOERROR) { 210 /* Don't clobber any existing error state */ 211 } else if ((xs->status == SCSI_STATUS_BUSY) || 212 (xs->status == SCSI_STATUS_QUEUE_FULL)) { 213 ahd_set_transaction_status(scb, XS_BUSY); 214 printf("%s: drive (ID %d, LUN %d) queue full (SCB 0x%x)\n", 215 ahd_name(ahd), SCB_GET_TARGET(ahd,scb), SCB_GET_LUN(scb), SCB_GET_TAG(scb)); 216 } else if ((scb->flags & SCB_SENSE) != 0) { 217 /* 218 * We performed autosense retrieval. 219 * 220 * zero the sense data before having 221 * the drive fill it. The SCSI spec mandates 222 * that any untransferred data should be 223 * assumed to be zero. Complete the 'bounce' 224 * of sense information through buffers accessible 225 * via bus-space by copying it into the clients 226 * csio. 227 */ 228 memset(&xs->sense.scsi_sense, 0, sizeof(xs->sense.scsi_sense)); 229 memcpy(&xs->sense.scsi_sense, ahd_get_sense_buf(ahd, scb), 230 sizeof(struct scsipi_sense_data)); 231 232 ahd_set_transaction_status(scb, XS_SENSE); 233 } else if ((scb->flags & SCB_PKT_SENSE) != 0) { 234 struct scsi_status_iu_header *siu; 235 u_int sense_len; 236 int i; 237 238 /* 239 * Copy only the sense data into the provided buffer. 240 */ 241 siu = (struct scsi_status_iu_header *)scb->sense_data; 242 sense_len = MIN(scsi_4btoul(siu->sense_length), 243 sizeof(&xs->sense.scsi_sense)); 244 memset(&xs->sense.scsi_sense, 0, sizeof(xs->sense.scsi_sense)); 245 memcpy(&xs->sense.scsi_sense, 246 scb->sense_data + SIU_SENSE_OFFSET(siu), sense_len); 247 printf("Copied %d bytes of sense data offset %d:", sense_len, 248 SIU_SENSE_OFFSET(siu)); 249 for (i = 0; i < sense_len; i++) 250 printf(" 0x%x", ((uint8_t *)&xs->sense.scsi_sense)[i]); 251 printf("\n"); 252 253 ahd_set_transaction_status(scb, XS_SENSE); 254 } 255 256 if (scb->flags & SCB_FREEZE_QUEUE) { 257 scsipi_periph_thaw(periph, 1); 258 scb->flags &= ~SCB_FREEZE_QUEUE; 259 } 260 261 if (scb->flags & SCB_REQUEUE) 262 ahd_set_transaction_status(scb, XS_REQUEUE); 263 264 ahd_lock(ahd, &s); 265 ahd_free_scb(ahd, scb); 266 ahd_unlock(ahd, &s); 267 268 scsipi_done(xs); 269 } 270 271 static void 272 ahd_action(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg) 273 { 274 struct ahd_softc *ahd; 275 struct ahd_initiator_tinfo *tinfo; 276 struct ahd_tmode_tstate *tstate; 277 278 ahd = (void *)chan->chan_adapter->adapt_dev; 279 280 switch(req) { 281 282 case ADAPTER_REQ_RUN_XFER: 283 { 284 struct scsipi_xfer *xs; 285 struct scsipi_periph *periph; 286 struct scb *scb; 287 struct hardware_scb *hscb; 288 u_int target_id; 289 u_int our_id; 290 u_int col_idx; 291 char channel; 292 int s; 293 294 xs = arg; 295 periph = xs->xs_periph; 296 297 SC_DEBUG(periph, SCSIPI_DB3, ("ahd_action\n")); 298 299 target_id = periph->periph_target; 300 our_id = ahd->our_id; 301 channel = (chan->chan_channel == 1) ? 'B' : 'A'; 302 303 /* 304 * get an scb to use. 305 */ 306 ahd_lock(ahd, &s); 307 tinfo = ahd_fetch_transinfo(ahd, channel, our_id, 308 target_id, &tstate); 309 310 if (xs->xs_tag_type != 0 || 311 (tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ) != 0) 312 col_idx = AHD_NEVER_COL_IDX; 313 else 314 col_idx = AHD_BUILD_COL_IDX(target_id, 315 periph->periph_lun); 316 317 if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) { 318 xs->error = XS_RESOURCE_SHORTAGE; 319 ahd_unlock(ahd, &s); 320 scsipi_done(xs); 321 return; 322 } 323 ahd_unlock(ahd, &s); 324 325 hscb = scb->hscb; 326 327 SC_DEBUG(periph, SCSIPI_DB3, ("start scb(%p)\n", scb)); 328 scb->xs = xs; 329 330 /* 331 * Put all the arguments for the xfer in the scb 332 */ 333 hscb->control = 0; 334 hscb->scsiid = BUILD_SCSIID(ahd, sim, target_id, our_id); 335 hscb->lun = periph->periph_lun; 336 if (xs->xs_control & XS_CTL_RESET) { 337 hscb->cdb_len = 0; 338 scb->flags |= SCB_DEVICE_RESET; 339 hscb->control |= MK_MESSAGE; 340 hscb->task_management = SIU_TASKMGMT_LUN_RESET; 341 ahd_execute_scb(scb, NULL, 0); 342 } else { 343 hscb->task_management = 0; 344 } 345 346 ahd_setup_data(ahd, xs, scb); 347 break; 348 } 349 350 case ADAPTER_REQ_GROW_RESOURCES: 351 printf("%s: ADAPTER_REQ_GROW_RESOURCES\n", ahd_name(ahd)); 352 break; 353 354 case ADAPTER_REQ_SET_XFER_MODE: 355 { 356 struct scsipi_xfer_mode *xm = arg; 357 struct ahd_devinfo devinfo; 358 int target_id, our_id, first; 359 u_int width; 360 int s; 361 char channel; 362 u_int ppr_options, period, offset; 363 uint16_t old_autoneg; 364 365 target_id = xm->xm_target; 366 our_id = chan->chan_id; 367 channel = 'A'; 368 s = splbio(); 369 tinfo = ahd_fetch_transinfo(ahd, channel, our_id, target_id, 370 &tstate); 371 ahd_compile_devinfo(&devinfo, our_id, target_id, 372 0, channel, ROLE_INITIATOR); 373 374 old_autoneg = tstate->auto_negotiate; 375 376 /* 377 * XXX since the period and offset are not provided here, 378 * fake things by forcing a renegotiation using the user 379 * settings if this is called for the first time (i.e. 380 * during probe). Also, cap various values at the user 381 * values, assuming that the user set it up that way. 382 */ 383 if (ahd->inited_target[target_id] == 0) { 384 period = tinfo->user.period; 385 offset = tinfo->user.offset; 386 ppr_options = tinfo->user.ppr_options; 387 width = tinfo->user.width; 388 tstate->tagenable |= 389 (ahd->user_tagenable & devinfo.target_mask); 390 tstate->discenable |= 391 (ahd->user_discenable & devinfo.target_mask); 392 ahd->inited_target[target_id] = 1; 393 first = 1; 394 } else 395 first = 0; 396 397 if (xm->xm_mode & (PERIPH_CAP_WIDE16 | PERIPH_CAP_DT)) 398 width = MSG_EXT_WDTR_BUS_16_BIT; 399 else 400 width = MSG_EXT_WDTR_BUS_8_BIT; 401 402 ahd_validate_width(ahd, NULL, &width, ROLE_UNKNOWN); 403 if (width > tinfo->user.width) 404 width = tinfo->user.width; 405 ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE); 406 407 if (!(xm->xm_mode & (PERIPH_CAP_SYNC | PERIPH_CAP_DT))) { 408 period = 0; 409 offset = 0; 410 ppr_options = 0; 411 } 412 413 if ((xm->xm_mode & PERIPH_CAP_DT) && 414 (tinfo->user.ppr_options & MSG_EXT_PPR_DT_REQ)) 415 ppr_options |= MSG_EXT_PPR_DT_REQ; 416 else 417 ppr_options &= ~MSG_EXT_PPR_DT_REQ; 418 419 if ((tstate->discenable & devinfo.target_mask) == 0 || 420 (tstate->tagenable & devinfo.target_mask) == 0) 421 ppr_options &= ~MSG_EXT_PPR_IU_REQ; 422 423 if ((xm->xm_mode & PERIPH_CAP_TQING) && 424 (ahd->user_tagenable & devinfo.target_mask)) 425 tstate->tagenable |= devinfo.target_mask; 426 else 427 tstate->tagenable &= ~devinfo.target_mask; 428 429 ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX); 430 ahd_validate_offset(ahd, NULL, period, &offset, 431 MSG_EXT_WDTR_BUS_8_BIT, ROLE_UNKNOWN); 432 if (offset == 0) { 433 period = 0; 434 ppr_options = 0; 435 } 436 if (ppr_options != 0 437 && tinfo->user.transport_version >= 3) { 438 tinfo->goal.transport_version = 439 tinfo->user.transport_version; 440 tinfo->curr.transport_version = 441 tinfo->user.transport_version; 442 } 443 444 ahd_set_syncrate(ahd, &devinfo, period, offset, 445 ppr_options, AHD_TRANS_GOAL, FALSE); 446 447 /* 448 * If this is the first request, and no negotiation is 449 * needed, just confirm the state to the scsipi layer, 450 * so that it can print a message. 451 */ 452 if (old_autoneg == tstate->auto_negotiate && first) { 453 xm->xm_mode = 0; 454 xm->xm_period = tinfo->curr.period; 455 xm->xm_offset = tinfo->curr.offset; 456 if (tinfo->curr.width == MSG_EXT_WDTR_BUS_16_BIT) 457 xm->xm_mode |= PERIPH_CAP_WIDE16; 458 if (tinfo->curr.period) 459 xm->xm_mode |= PERIPH_CAP_SYNC; 460 if (tstate->tagenable & devinfo.target_mask) 461 xm->xm_mode |= PERIPH_CAP_TQING; 462 if (tinfo->curr.ppr_options & MSG_EXT_PPR_DT_REQ) 463 xm->xm_mode |= PERIPH_CAP_DT; 464 scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, xm); 465 } 466 splx(s); 467 } 468 } 469 470 return; 471 } 472 473 static void 474 ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments) 475 { 476 struct scb *scb; 477 struct scsipi_xfer *xs; 478 struct ahd_softc *ahd; 479 struct ahd_initiator_tinfo *tinfo; 480 struct ahd_tmode_tstate *tstate; 481 u_int mask; 482 int s; 483 484 scb = (struct scb*)arg; 485 xs = scb->xs; 486 xs->error = 0; 487 xs->status = 0; 488 xs->xs_status = 0; 489 ahd = (void*)xs->xs_periph->periph_channel->chan_adapter->adapt_dev; 490 491 scb->sg_count = 0; 492 if (nsegments != 0) { 493 void *sg; 494 int op; 495 u_int i; 496 497 ahd_setup_data_scb(ahd, scb); 498 499 /* Copy the segments into our SG list */ 500 for (i = nsegments, sg = scb->sg_list; i > 0; i--) { 501 502 sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr, 503 dm_segs->ds_len, 504 /*last*/i == 1); 505 dm_segs++; 506 } 507 508 if (xs->xs_control & XS_CTL_DATA_IN) 509 op = BUS_DMASYNC_PREREAD; 510 else 511 op = BUS_DMASYNC_PREWRITE; 512 513 bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0, 514 scb->dmamap->dm_mapsize, op); 515 } 516 517 ahd_lock(ahd, &s); 518 519 /* 520 * Last time we need to check if this SCB needs to 521 * be aborted. 522 */ 523 if (ahd_get_scsi_status(scb) == XS_STS_DONE) { 524 if (nsegments != 0) 525 bus_dmamap_unload(ahd->parent_dmat, 526 scb->dmamap); 527 ahd_free_scb(ahd, scb); 528 ahd_unlock(ahd, &s); 529 return; 530 } 531 532 tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid), 533 SCSIID_OUR_ID(scb->hscb->scsiid), 534 SCSIID_TARGET(ahd, scb->hscb->scsiid), 535 &tstate); 536 537 mask = SCB_GET_TARGET_MASK(ahd, scb); 538 539 if ((tstate->discenable & mask) != 0) 540 scb->hscb->control |= DISCENB; 541 542 if ((tstate->tagenable & mask) != 0) 543 scb->hscb->control |= xs->xs_tag_type|TAG_ENB; 544 545 if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU) != 0) { 546 scb->flags |= SCB_PACKETIZED; 547 if (scb->hscb->task_management != 0) 548 scb->hscb->control &= ~MK_MESSAGE; 549 } 550 551 #if 0 /* This looks like it makes sense at first, but it can loop */ 552 if ((xs->xs_control & XS_CTL_DISCOVERY) && 553 (tinfo->goal.width != 0 554 || tinfo->goal.period != 0 555 || tinfo->goal.ppr_options != 0)) { 556 scb->flags |= SCB_NEGOTIATE; 557 scb->hscb->control |= MK_MESSAGE; 558 } else 559 #endif 560 if ((tstate->auto_negotiate & mask) != 0) { 561 scb->flags |= SCB_AUTO_NEGOTIATE; 562 scb->hscb->control |= MK_MESSAGE; 563 } 564 565 LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links); 566 567 scb->flags |= SCB_ACTIVE; 568 569 if (!(xs->xs_control & XS_CTL_POLL)) { 570 callout_reset(&scb->xs->xs_callout, xs->timeout > 1000000 ? 571 (xs->timeout / 1000) * hz : (xs->timeout * hz) / 1000, 572 ahd_timeout, scb); 573 } 574 575 if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) { 576 /* Define a mapping from our tag to the SCB. */ 577 ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb; 578 ahd_pause(ahd); 579 ahd_set_scbptr(ahd, SCB_GET_TAG(scb)); 580 ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG); 581 ahd_unpause(ahd); 582 } else { 583 ahd_queue_scb(ahd, scb); 584 } 585 586 if (!(xs->xs_control & XS_CTL_POLL)) { 587 ahd_unlock(ahd, &s); 588 return; 589 } 590 /* 591 * If we can't use interrupts, poll for completion 592 */ 593 SC_DEBUG(xs->xs_periph, SCSIPI_DB3, ("cmd_poll\n")); 594 do { 595 if (ahd_poll(ahd, xs->timeout)) { 596 if (!(xs->xs_control & XS_CTL_SILENT)) 597 printf("cmd fail\n"); 598 ahd_timeout(scb); 599 break; 600 } 601 } while (!(xs->xs_status & XS_STS_DONE)); 602 603 ahd_unlock(ahd, &s); 604 } 605 606 static int 607 ahd_poll(struct ahd_softc *ahd, int wait) 608 { 609 610 while (--wait) { 611 DELAY(1000); 612 if (ahd_inb(ahd, INTSTAT) & INT_PEND) 613 break; 614 } 615 616 if (wait == 0) { 617 printf("%s: board is not responding\n", ahd_name(ahd)); 618 return (EIO); 619 } 620 621 ahd_intr((void *)ahd); 622 return (0); 623 } 624 625 626 static void 627 ahd_setup_data(struct ahd_softc *ahd, struct scsipi_xfer *xs, 628 struct scb *scb) 629 { 630 struct hardware_scb *hscb; 631 632 hscb = scb->hscb; 633 xs->resid = xs->status = 0; 634 635 hscb->cdb_len = xs->cmdlen; 636 if (hscb->cdb_len > MAX_CDB_LEN) { 637 int s; 638 /* 639 * Should CAM start to support CDB sizes 640 * greater than 16 bytes, we could use 641 * the sense buffer to store the CDB. 642 */ 643 ahd_set_transaction_status(scb, 644 XS_DRIVER_STUFFUP); 645 646 ahd_lock(ahd, &s); 647 ahd_free_scb(ahd, scb); 648 ahd_unlock(ahd, &s); 649 scsipi_done(xs); 650 } 651 memcpy(hscb->shared_data.idata.cdb, xs->cmd, hscb->cdb_len); 652 653 /* Only use S/G if there is a transfer */ 654 if (xs->datalen) { 655 int error; 656 657 error = bus_dmamap_load(ahd->parent_dmat, 658 scb->dmamap, xs->data, 659 xs->datalen, NULL, 660 ((xs->xs_control & XS_CTL_NOSLEEP) ? 661 BUS_DMA_NOWAIT : BUS_DMA_WAITOK) | 662 BUS_DMA_STREAMING | 663 ((xs->xs_control & XS_CTL_DATA_IN) ? 664 BUS_DMA_READ : BUS_DMA_WRITE)); 665 if (error) { 666 #ifdef AHD_DEBUG 667 printf("%s: in ahc_setup_data(): bus_dmamap_load() " 668 "= %d\n", 669 ahd_name(ahd), error); 670 #endif 671 xs->error = XS_RESOURCE_SHORTAGE; 672 scsipi_done(xs); 673 return; 674 } 675 ahd_execute_scb(scb, 676 scb->dmamap->dm_segs, 677 scb->dmamap->dm_nsegs); 678 } else { 679 ahd_execute_scb(scb, NULL, 0); 680 } 681 } 682 683 void 684 ahd_timeout(void *arg) 685 { 686 struct scb *scb; 687 struct ahd_softc *ahd; 688 ahd_mode_state saved_modes; 689 int s; 690 691 scb = (struct scb *)arg; 692 ahd = (struct ahd_softc *)scb->ahd_softc; 693 694 printf("%s: ahd_timeout\n", ahd_name(ahd)); 695 696 ahd_lock(ahd, &s); 697 698 ahd_pause_and_flushwork(ahd); 699 saved_modes = ahd_save_modes(ahd); 700 #if 0 701 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI); 702 ahd_outb(ahd, SCSISIGO, ACKO); 703 printf("set ACK\n"); 704 ahd_outb(ahd, SCSISIGO, 0); 705 printf("clearing Ack\n"); 706 ahd_restore_modes(ahd, saved_modes); 707 #endif 708 if ((scb->flags & SCB_ACTIVE) == 0) { 709 /* Previous timeout took care of me already */ 710 printf("%s: Timedout SCB already complete. " 711 "Interrupts may not be functioning.\n", ahd_name(ahd)); 712 ahd_unpause(ahd); 713 ahd_unlock(ahd, &s); 714 return; 715 } 716 717 ahd_print_path(ahd, scb); 718 printf("SCB 0x%x - timed out\n", SCB_GET_TAG(scb)); 719 ahd_dump_card_state(ahd); 720 ahd_reset_channel(ahd, SIM_CHANNEL(ahd, sim), 721 /*initiate reset*/TRUE); 722 ahd_unlock(ahd, &s); 723 return; 724 } 725 726 int 727 ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg) 728 { 729 ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF, 730 M_NOWAIT /*| M_ZERO*/); 731 if (ahd->platform_data == NULL) 732 return (ENOMEM); 733 734 memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data)); 735 736 return (0); 737 } 738 739 void 740 ahd_platform_free(struct ahd_softc *ahd) 741 { 742 free(ahd->platform_data, M_DEVBUF); 743 } 744 745 int 746 ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd) 747 { 748 /* We don't sort softcs under NetBSD so report equal always */ 749 return (0); 750 } 751 752 int 753 ahd_detach(struct device *self, int flags) 754 { 755 int rv = 0; 756 757 struct ahd_softc *ahd = (struct ahd_softc*)self; 758 759 if (ahd->sc_child != NULL) 760 rv = config_detach((void *)ahd->sc_child, flags); 761 762 shutdownhook_disestablish(ahd->shutdown_hook); 763 764 ahd_free(ahd); 765 766 return rv; 767 } 768 769 void 770 ahd_platform_set_tags(struct ahd_softc *ahd, 771 struct ahd_devinfo *devinfo, ahd_queue_alg alg) 772 { 773 struct ahd_tmode_tstate *tstate; 774 775 ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid, 776 devinfo->target, &tstate); 777 778 if (alg != AHD_QUEUE_NONE) 779 tstate->tagenable |= devinfo->target_mask; 780 else 781 tstate->tagenable &= ~devinfo->target_mask; 782 } 783 784 void 785 ahd_send_async(struct ahd_softc *ahc, char channel, u_int target, u_int lun, 786 ac_code code, void *opt_arg) 787 { 788 struct ahd_tmode_tstate *tstate; 789 struct ahd_initiator_tinfo *tinfo; 790 struct ahd_devinfo devinfo; 791 struct scsipi_channel *chan; 792 struct scsipi_xfer_mode xm; 793 794 #ifdef DIAGNOSTIC 795 if (channel != 'A') 796 panic("ahd_send_async: not channel A"); 797 #endif 798 chan = &ahc->sc_channel; 799 switch (code) { 800 case AC_TRANSFER_NEG: 801 tinfo = ahd_fetch_transinfo(ahc, channel, ahc->our_id, target, 802 &tstate); 803 ahd_compile_devinfo(&devinfo, ahc->our_id, target, lun, 804 channel, ROLE_UNKNOWN); 805 /* 806 * Don't bother if negotiating. XXX? 807 */ 808 if (tinfo->curr.period != tinfo->goal.period 809 || tinfo->curr.width != tinfo->goal.width 810 || tinfo->curr.offset != tinfo->goal.offset 811 || tinfo->curr.ppr_options != tinfo->goal.ppr_options) 812 break; 813 xm.xm_target = target; 814 xm.xm_mode = 0; 815 xm.xm_period = tinfo->curr.period; 816 xm.xm_offset = tinfo->curr.offset; 817 if (tinfo->goal.ppr_options & MSG_EXT_PPR_DT_REQ) 818 xm.xm_mode |= PERIPH_CAP_DT; 819 if (tinfo->curr.width == MSG_EXT_WDTR_BUS_16_BIT) 820 xm.xm_mode |= PERIPH_CAP_WIDE16; 821 if (tinfo->curr.period) 822 xm.xm_mode |= PERIPH_CAP_SYNC; 823 if (tstate->tagenable & devinfo.target_mask) 824 xm.xm_mode |= PERIPH_CAP_TQING; 825 scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, &xm); 826 break; 827 case AC_BUS_RESET: 828 scsipi_async_event(chan, ASYNC_EVENT_RESET, NULL); 829 case AC_SENT_BDR: 830 default: 831 break; 832 } 833 } 834
Indexes created Fri Sep 26 08:10:20 GMT 2025