adv.c revision 1.14.2.1
1 /* $NetBSD: adv.c,v 1.14.2.1 1999/10/19 17:47:28 thorpej Exp $ */ 2 3 /* 4 * Generic driver for the Advanced Systems Inc. Narrow SCSI controllers 5 * 6 * Copyright (c) 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * Author: Baldassare Dante Profeta <dante (at) mclink.it> 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/types.h> 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/errno.h> 45 #include <sys/ioctl.h> 46 #include <sys/device.h> 47 #include <sys/malloc.h> 48 #include <sys/buf.h> 49 #include <sys/proc.h> 50 #include <sys/user.h> 51 52 #include <machine/bus.h> 53 #include <machine/intr.h> 54 55 #include <vm/vm.h> 56 #include <vm/vm_param.h> 57 #include <vm/pmap.h> 58 59 #include <dev/scsipi/scsi_all.h> 60 #include <dev/scsipi/scsipi_all.h> 61 #include <dev/scsipi/scsiconf.h> 62 63 #include <dev/ic/advlib.h> 64 #include <dev/ic/adv.h> 65 66 #ifndef DDB 67 #define Debugger() panic("should call debugger here (adv.c)") 68 #endif /* ! DDB */ 69 70 71 /* #define ASC_DEBUG */ 72 73 /******************************************************************************/ 74 75 76 static int adv_alloc_control_data __P((ASC_SOFTC *)); 77 static int adv_create_ccbs __P((ASC_SOFTC *, ADV_CCB *, int)); 78 static void adv_free_ccb __P((ASC_SOFTC *, ADV_CCB *)); 79 static void adv_reset_ccb __P((ADV_CCB *)); 80 static int adv_init_ccb __P((ASC_SOFTC *, ADV_CCB *)); 81 static ADV_CCB *adv_get_ccb __P((ASC_SOFTC *, int)); 82 static void adv_queue_ccb __P((ASC_SOFTC *, ADV_CCB *)); 83 static void adv_start_ccbs __P((ASC_SOFTC *)); 84 85 86 static void adv_scsipi_request __P((struct scsipi_channel *, 87 scsipi_adapter_req_t, void *)); 88 static void advminphys __P((struct buf *)); 89 static void adv_narrow_isr_callback __P((ASC_SOFTC *, ASC_QDONE_INFO *)); 90 91 static int adv_poll __P((ASC_SOFTC *, struct scsipi_xfer *, int)); 92 static void adv_timeout __P((void *)); 93 static void adv_watchdog __P((void *)); 94 95 96 /******************************************************************************/ 97 98 #define ADV_ABORT_TIMEOUT 2000 /* time to wait for abort (mSec) */ 99 #define ADV_WATCH_TIMEOUT 1000 /* time to wait for watchdog (mSec) */ 100 101 /******************************************************************************/ 102 /* Control Blocks routines */ 103 /******************************************************************************/ 104 105 106 static int 107 adv_alloc_control_data(sc) 108 ASC_SOFTC *sc; 109 { 110 bus_dma_segment_t seg; 111 int error, rseg; 112 113 /* 114 * Allocate the control blocks. 115 */ 116 if ((error = bus_dmamem_alloc(sc->sc_dmat, sizeof(struct adv_control), 117 NBPG, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) != 0) { 118 printf("%s: unable to allocate control structures," 119 " error = %d\n", sc->sc_dev.dv_xname, error); 120 return (error); 121 } 122 if ((error = bus_dmamem_map(sc->sc_dmat, &seg, rseg, 123 sizeof(struct adv_control), (caddr_t *) & sc->sc_control, 124 BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) { 125 printf("%s: unable to map control structures, error = %d\n", 126 sc->sc_dev.dv_xname, error); 127 return (error); 128 } 129 /* 130 * Create and load the DMA map used for the control blocks. 131 */ 132 if ((error = bus_dmamap_create(sc->sc_dmat, sizeof(struct adv_control), 133 1, sizeof(struct adv_control), 0, BUS_DMA_NOWAIT, 134 &sc->sc_dmamap_control)) != 0) { 135 printf("%s: unable to create control DMA map, error = %d\n", 136 sc->sc_dev.dv_xname, error); 137 return (error); 138 } 139 if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap_control, 140 sc->sc_control, sizeof(struct adv_control), NULL, 141 BUS_DMA_NOWAIT)) != 0) { 142 printf("%s: unable to load control DMA map, error = %d\n", 143 sc->sc_dev.dv_xname, error); 144 return (error); 145 } 146 147 /* 148 * Initialize the overrun_buf address. 149 */ 150 sc->overrun_buf = sc->sc_dmamap_control->dm_segs[0].ds_addr + 151 offsetof(struct adv_control, overrun_buf); 152 153 return (0); 154 } 155 156 157 /* 158 * Create a set of ccbs and add them to the free list. Called once 159 * by adv_init(). We return the number of CCBs successfully created. 160 */ 161 static int 162 adv_create_ccbs(sc, ccbstore, count) 163 ASC_SOFTC *sc; 164 ADV_CCB *ccbstore; 165 int count; 166 { 167 ADV_CCB *ccb; 168 int i, error; 169 170 bzero(ccbstore, sizeof(ADV_CCB) * count); 171 for (i = 0; i < count; i++) { 172 ccb = &ccbstore[i]; 173 if ((error = adv_init_ccb(sc, ccb)) != 0) { 174 printf("%s: unable to initialize ccb, error = %d\n", 175 sc->sc_dev.dv_xname, error); 176 return (i); 177 } 178 TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, chain); 179 } 180 181 return (i); 182 } 183 184 185 /* 186 * A ccb is put onto the free list. 187 */ 188 static void 189 adv_free_ccb(sc, ccb) 190 ASC_SOFTC *sc; 191 ADV_CCB *ccb; 192 { 193 int s; 194 195 s = splbio(); 196 197 adv_reset_ccb(ccb); 198 TAILQ_INSERT_HEAD(&sc->sc_free_ccb, ccb, chain); 199 200 /* 201 * If there were none, wake anybody waiting for one to come free, 202 * starting with queued entries. 203 */ 204 if (ccb->chain.tqe_next == 0) 205 wakeup(&sc->sc_free_ccb); 206 207 splx(s); 208 } 209 210 211 static void 212 adv_reset_ccb(ccb) 213 ADV_CCB *ccb; 214 { 215 216 ccb->flags = 0; 217 } 218 219 220 static int 221 adv_init_ccb(sc, ccb) 222 ASC_SOFTC *sc; 223 ADV_CCB *ccb; 224 { 225 int hashnum, error; 226 227 /* 228 * Create the DMA map for this CCB. 229 */ 230 error = bus_dmamap_create(sc->sc_dmat, 231 (ASC_MAX_SG_LIST - 1) * PAGE_SIZE, 232 ASC_MAX_SG_LIST, (ASC_MAX_SG_LIST - 1) * PAGE_SIZE, 233 0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ccb->dmamap_xfer); 234 if (error) { 235 printf("%s: unable to create DMA map, error = %d\n", 236 sc->sc_dev.dv_xname, error); 237 return (error); 238 } 239 240 /* 241 * put in the phystokv hash table 242 * Never gets taken out. 243 */ 244 ccb->hashkey = sc->sc_dmamap_control->dm_segs[0].ds_addr + 245 ADV_CCB_OFF(ccb); 246 hashnum = CCB_HASH(ccb->hashkey); 247 ccb->nexthash = sc->sc_ccbhash[hashnum]; 248 sc->sc_ccbhash[hashnum] = ccb; 249 250 adv_reset_ccb(ccb); 251 return (0); 252 } 253 254 255 /* 256 * Get a free ccb 257 * 258 * If there are none, see if we can allocate a new one 259 */ 260 static ADV_CCB * 261 adv_get_ccb(sc, flags) 262 ASC_SOFTC *sc; 263 int flags; 264 { 265 ADV_CCB *ccb = 0; 266 int s; 267 268 s = splbio(); 269 270 /* 271 * If we can and have to, sleep waiting for one to come free 272 * but only if we can't allocate a new one. 273 */ 274 for (;;) { 275 ccb = sc->sc_free_ccb.tqh_first; 276 if (ccb) { 277 TAILQ_REMOVE(&sc->sc_free_ccb, ccb, chain); 278 break; 279 } 280 if ((flags & XS_CTL_NOSLEEP) != 0) 281 goto out; 282 283 tsleep(&sc->sc_free_ccb, PRIBIO, "advccb", 0); 284 } 285 286 ccb->flags |= CCB_ALLOC; 287 288 out: 289 splx(s); 290 return (ccb); 291 } 292 293 294 /* 295 * Given a physical address, find the ccb that it corresponds to. 296 */ 297 ADV_CCB * 298 adv_ccb_phys_kv(sc, ccb_phys) 299 ASC_SOFTC *sc; 300 u_long ccb_phys; 301 { 302 int hashnum = CCB_HASH(ccb_phys); 303 ADV_CCB *ccb = sc->sc_ccbhash[hashnum]; 304 305 while (ccb) { 306 if (ccb->hashkey == ccb_phys) 307 break; 308 ccb = ccb->nexthash; 309 } 310 return (ccb); 311 } 312 313 314 /* 315 * Queue a CCB to be sent to the controller, and send it if possible. 316 */ 317 static void 318 adv_queue_ccb(sc, ccb) 319 ASC_SOFTC *sc; 320 ADV_CCB *ccb; 321 { 322 323 TAILQ_INSERT_TAIL(&sc->sc_waiting_ccb, ccb, chain); 324 325 adv_start_ccbs(sc); 326 } 327 328 329 static void 330 adv_start_ccbs(sc) 331 ASC_SOFTC *sc; 332 { 333 ADV_CCB *ccb; 334 335 while ((ccb = sc->sc_waiting_ccb.tqh_first) != NULL) { 336 if (ccb->flags & CCB_WATCHDOG) 337 untimeout(adv_watchdog, ccb); 338 339 if (AscExeScsiQueue(sc, &ccb->scsiq) == ASC_BUSY) { 340 ccb->flags |= CCB_WATCHDOG; 341 timeout(adv_watchdog, ccb, 342 (ADV_WATCH_TIMEOUT * hz) / 1000); 343 break; 344 } 345 TAILQ_REMOVE(&sc->sc_waiting_ccb, ccb, chain); 346 347 if ((ccb->xs->xs_control & XS_CTL_POLL) == 0) 348 timeout(adv_timeout, ccb, (ccb->timeout * hz) / 1000); 349 } 350 } 351 352 353 /******************************************************************************/ 354 /* SCSI layer interfacing routines */ 355 /******************************************************************************/ 356 357 358 int 359 adv_init(sc) 360 ASC_SOFTC *sc; 361 { 362 int warn; 363 364 if (!AscFindSignature(sc->sc_iot, sc->sc_ioh)) { 365 printf("adv_init: failed to find signature\n"); 366 return (1); 367 } 368 369 /* 370 * Read the board configuration 371 */ 372 AscInitASC_SOFTC(sc); 373 warn = AscInitFromEEP(sc); 374 if (warn) { 375 printf("%s -get: ", sc->sc_dev.dv_xname); 376 switch (warn) { 377 case -1: 378 printf("Chip is not halted\n"); 379 break; 380 381 case -2: 382 printf("Couldn't get MicroCode Start" 383 " address\n"); 384 break; 385 386 case ASC_WARN_IO_PORT_ROTATE: 387 printf("I/O port address modified\n"); 388 break; 389 390 case ASC_WARN_AUTO_CONFIG: 391 printf("I/O port increment switch enabled\n"); 392 break; 393 394 case ASC_WARN_EEPROM_CHKSUM: 395 printf("EEPROM checksum error\n"); 396 break; 397 398 case ASC_WARN_IRQ_MODIFIED: 399 printf("IRQ modified\n"); 400 break; 401 402 case ASC_WARN_CMD_QNG_CONFLICT: 403 printf("tag queuing enabled w/o disconnects\n"); 404 break; 405 406 default: 407 printf("unknown warning %d\n", warn); 408 } 409 } 410 if (sc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) 411 sc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; 412 413 /* 414 * Modify the board configuration 415 */ 416 warn = AscInitFromASC_SOFTC(sc); 417 if (warn) { 418 printf("%s -set: ", sc->sc_dev.dv_xname); 419 switch (warn) { 420 case ASC_WARN_CMD_QNG_CONFLICT: 421 printf("tag queuing enabled w/o disconnects\n"); 422 break; 423 424 case ASC_WARN_AUTO_CONFIG: 425 printf("I/O port increment switch enabled\n"); 426 break; 427 428 default: 429 printf("unknown warning %d\n", warn); 430 } 431 } 432 sc->isr_callback = (ASC_CALLBACK) adv_narrow_isr_callback; 433 434 return (0); 435 } 436 437 438 void 439 adv_attach(sc) 440 ASC_SOFTC *sc; 441 { 442 struct scsipi_adapter *adapt = &sc->sc_adapter; 443 struct scsipi_channel *chan = &sc->sc_channel; 444 int i, error; 445 446 /* 447 * Initialize board RISC chip and enable interrupts. 448 */ 449 switch (AscInitDriver(sc)) { 450 case 0: 451 /* AllOK */ 452 break; 453 454 case 1: 455 panic("%s: bad signature", sc->sc_dev.dv_xname); 456 break; 457 458 case 2: 459 panic("%s: unable to load MicroCode", 460 sc->sc_dev.dv_xname); 461 break; 462 463 case 3: 464 panic("%s: unable to initialize MicroCode", 465 sc->sc_dev.dv_xname); 466 break; 467 468 default: 469 panic("%s: unable to initialize board RISC chip", 470 sc->sc_dev.dv_xname); 471 } 472 473 /* 474 * Fill in the scsipi_adapter. 475 */ 476 memset(adapt, 0, sizeof(*adapt)); 477 adapt->adapt_dev = &sc->sc_dev; 478 adapt->adapt_nchannels = 1; 479 /* adapt_openings initialized below */ 480 /* adapt_max_periph initialized below */ 481 adapt->adapt_request = adv_scsipi_request; 482 adapt->adapt_minphys = advminphys; 483 484 /* 485 * Fill in the scsipi_channel. 486 */ 487 memset(chan, 0, sizeof(*chan)); 488 chan->chan_adapter = adapt; 489 chan->chan_bustype = &scsi_bustype; 490 chan->chan_channel = 0; 491 chan->chan_ntargets = 8; 492 chan->chan_nluns = 8; 493 chan->chan_id = sc->chip_scsi_id; 494 495 TAILQ_INIT(&sc->sc_free_ccb); 496 TAILQ_INIT(&sc->sc_waiting_ccb); 497 498 /* 499 * Allocate the Control Blocks and the overrun buffer. 500 */ 501 error = adv_alloc_control_data(sc); 502 if (error) 503 return; /* (error) */ 504 505 /* 506 * Create and initialize the Control Blocks. 507 */ 508 i = adv_create_ccbs(sc, sc->sc_control->ccbs, ADV_MAX_CCB); 509 if (i == 0) { 510 printf("%s: unable to create control blocks\n", 511 sc->sc_dev.dv_xname); 512 return; /* (ENOMEM) */ ; 513 } else if (i != ADV_MAX_CCB) { 514 printf("%s: WARNING: only %d of %d control blocks created\n", 515 sc->sc_dev.dv_xname, i, ADV_MAX_CCB); 516 } 517 518 adapt->adapt_openings = i; 519 adapt->adapt_max_periph = adapt->adapt_openings; 520 521 config_found(&sc->sc_dev, chan, scsiprint); 522 } 523 524 525 static void 526 advminphys(bp) 527 struct buf *bp; 528 { 529 530 if (bp->b_bcount > ((ASC_MAX_SG_LIST - 1) * PAGE_SIZE)) 531 bp->b_bcount = ((ASC_MAX_SG_LIST - 1) * PAGE_SIZE); 532 minphys(bp); 533 } 534 535 536 /* 537 * start a scsi operation given the command and the data address. Also needs 538 * the unit, target and lu. 539 */ 540 static void 541 adv_scsipi_request(chan, req, arg) 542 struct scsipi_channel *chan; 543 scsipi_adapter_req_t req; 544 void *arg; 545 { 546 struct scsipi_xfer *xs; 547 struct scsipi_periph *periph; 548 ASC_SOFTC *sc = (void *)chan->chan_adapter->adapt_dev; 549 bus_dma_tag_t dmat = sc->sc_dmat; 550 ADV_CCB *ccb; 551 int s, flags, error, nsegs; 552 553 switch (req) { 554 case ADAPTER_REQ_RUN_XFER: 555 xs = arg; 556 periph = xs->xs_periph; 557 flags = xs->xs_control; 558 559 /* 560 * Get a CCB to use. 561 */ 562 ccb = adv_get_ccb(sc, flags); 563 #ifdef DIAGNOSTIC 564 /* 565 * This should never happen as we track the resources 566 * in the mid-layer. 567 */ 568 if (ccb == NULL) { 569 scsipi_printaddr(periph); 570 printf("unable to allocate ccb\n"); 571 panic("adv_scsipi_request"); 572 } 573 #endif 574 575 ccb->xs = xs; 576 ccb->timeout = xs->timeout; 577 578 /* 579 * Build up the request 580 */ 581 memset(&ccb->scsiq, 0, sizeof(ASC_SCSI_Q)); 582 583 ccb->scsiq.q2.ccb_ptr = 584 sc->sc_dmamap_control->dm_segs[0].ds_addr + 585 ADV_CCB_OFF(ccb); 586 587 ccb->scsiq.cdbptr = &xs->cmd->opcode; 588 ccb->scsiq.q2.cdb_len = xs->cmdlen; 589 ccb->scsiq.q1.target_id = 590 ASC_TID_TO_TARGET_ID(periph->periph_target); 591 ccb->scsiq.q1.target_lun = periph->periph_lun; 592 ccb->scsiq.q2.target_ix = 593 ASC_TIDLUN_TO_IX(periph->periph_target, 594 periph->periph_lun); 595 ccb->scsiq.q1.sense_addr = 596 sc->sc_dmamap_control->dm_segs[0].ds_addr + 597 ADV_CCB_OFF(ccb) + offsetof(struct adv_ccb, scsi_sense); 598 ccb->scsiq.q1.sense_len = sizeof(struct scsipi_sense_data); 599 600 /* 601 * If there are any outstanding requests for the current 602 * target, then every 255th request send an ORDERED request. 603 * This heuristic tries to retain the benefit of request 604 * sorting while preventing request starvation. 255 is the 605 * max number of tags or pending commands a device may have 606 * outstanding. 607 */ 608 sc->reqcnt[periph->periph_target]++; 609 if ((sc->reqcnt[periph->periph_target] > 0) && 610 (sc->reqcnt[periph->periph_target] % 255) == 0) { 611 ccb->scsiq.q2.tag_code = M2_QTAG_MSG_ORDERED; 612 } else { 613 ccb->scsiq.q2.tag_code = M2_QTAG_MSG_SIMPLE; 614 } 615 616 if (xs->datalen) { 617 /* 618 * Map the DMA transfer. 619 */ 620 #ifdef TFS 621 if (flags & SCSI_DATA_UIO) { 622 error = bus_dmamap_load_uio(dmat, 623 ccb->dmamap_xfer, (struct uio *) xs->data, 624 (flags & XS_CTL_NOSLEEP) ? 625 BUS_DMA_NOWAIT : BUS_DMA_WAITOK); 626 } else 627 #endif /* TFS */ 628 { 629 error = bus_dmamap_load(dmat, ccb->dmamap_xfer, 630 xs->data, xs->datalen, NULL, 631 (flags & XS_CTL_NOSLEEP) ? 632 BUS_DMA_NOWAIT : BUS_DMA_WAITOK); 633 } 634 635 if (error) { 636 if (error == EFBIG) { 637 printf("%s: adv_scsipi_request, " 638 "more than %d dma segments\n", 639 sc->sc_dev.dv_xname, 640 ASC_MAX_SG_LIST); 641 } else { 642 printf("%s: adv_scsipi_request, " 643 "error %d loading dma map\n", 644 sc->sc_dev.dv_xname, error); 645 } 646 647 adv_free_ccb(sc, ccb); 648 xs->error = XS_DRIVER_STUFFUP; 649 scsipi_done(xs); 650 return; 651 } 652 bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0, 653 ccb->dmamap_xfer->dm_mapsize, 654 (flags & XS_CTL_DATA_IN) ? 655 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); 656 657 memset(&ccb->sghead, 0, sizeof(ASC_SG_HEAD)); 658 659 for (nsegs = 0; 660 nsegs < ccb->dmamap_xfer->dm_nsegs; nsegs++) { 661 ccb->sghead.sg_list[nsegs].addr = 662 ccb->dmamap_xfer->dm_segs[nsegs].ds_addr; 663 ccb->sghead.sg_list[nsegs].bytes = 664 ccb->dmamap_xfer->dm_segs[nsegs].ds_len; 665 } 666 667 ccb->sghead.entry_cnt = ccb->scsiq.q1.sg_queue_cnt = 668 ccb->dmamap_xfer->dm_nsegs; 669 670 ccb->scsiq.q1.cntl |= ASC_QC_SG_HEAD; 671 ccb->scsiq.sg_head = &ccb->sghead; 672 ccb->scsiq.q1.data_addr = 0; 673 ccb->scsiq.q1.data_cnt = 0; 674 } else { 675 /* 676 * No data xfer, use non S/G values. 677 */ 678 ccb->scsiq.q1.data_addr = 0; 679 ccb->scsiq.q1.data_cnt = 0; 680 } 681 682 #ifdef ASC_DEBUG 683 printf("id = %d, lun = %d, cmd = %d, ccb = 0x%lX \n", 684 periph->periph_target, 685 periph->periph_lun, xs->cmd->opcode, 686 (unsigned long)ccb); 687 #endif 688 s = splbio(); 689 adv_queue_ccb(sc, ccb); 690 splx(s); 691 692 if ((flags & XS_CTL_POLL) == 0) 693 return; 694 695 /* Not allowed to use interrupts, poll for completion. */ 696 if (adv_poll(sc, xs, ccb->timeout)) { 697 adv_timeout(ccb); 698 if (adv_poll(sc, xs, ccb->timeout)) 699 adv_timeout(ccb); 700 } 701 return; 702 703 case ADAPTER_REQ_GROW_RESOURCES: 704 /* XXX Not supported. */ 705 return; 706 707 case ADAPTER_REQ_SET_XFER_MODE: 708 /* XXX XXX XXX */ 709 return; 710 711 case ADAPTER_REQ_GET_XFER_MODE: 712 { 713 u_int8_t sdtr_data; 714 ASC_SCSI_BIT_ID_TYPE tid_bit; 715 716 periph = arg; 717 tid_bit = ASC_TIX_TO_TARGET_ID(periph->periph_target); 718 719 periph->periph_mode = 0; 720 periph->periph_period = 0; 721 periph->periph_offset = 0; 722 723 if (sc->init_sdtr & tid_bit) { 724 periph->periph_mode |= PERIPH_CAP_SYNC; 725 sdtr_data = sc->sdtr_data[periph->periph_target]; 726 periph->periph_period = 727 sc->sdtr_period_tbl[(sdtr_data >> 4) & 728 (sc->max_sdtr_index - 1)]; 729 periph->periph_offset = sdtr_data & ASC_SYN_MAX_OFFSET; 730 } 731 732 if (sc->use_tagged_qng & tid_bit) 733 periph->periph_mode |= PERIPH_CAP_TQING; 734 735 periph->periph_flags |= PERIPH_MODE_VALID; 736 return; 737 } 738 } 739 } 740 741 int 742 adv_intr(arg) 743 void *arg; 744 { 745 ASC_SOFTC *sc = arg; 746 747 #ifdef ASC_DEBUG 748 int int_pend = FALSE; 749 750 if(ASC_IS_INT_PENDING(sc->sc_iot, sc->sc_ioh)) 751 { 752 int_pend = TRUE; 753 printf("ISR - "); 754 } 755 #endif 756 AscISR(sc); 757 #ifdef ASC_DEBUG 758 if(int_pend) 759 printf("\n"); 760 #endif 761 762 return (1); 763 } 764 765 766 /* 767 * Poll a particular unit, looking for a particular xs 768 */ 769 static int 770 adv_poll(sc, xs, count) 771 ASC_SOFTC *sc; 772 struct scsipi_xfer *xs; 773 int count; 774 { 775 776 /* timeouts are in msec, so we loop in 1000 usec cycles */ 777 while (count) { 778 adv_intr(sc); 779 if (xs->xs_status & XS_STS_DONE) 780 return (0); 781 delay(1000); /* only happens in boot so ok */ 782 count--; 783 } 784 return (1); 785 } 786 787 788 static void 789 adv_timeout(arg) 790 void *arg; 791 { 792 ADV_CCB *ccb = arg; 793 struct scsipi_xfer *xs = ccb->xs; 794 struct scsipi_periph *periph = xs->xs_periph; 795 ASC_SOFTC *sc = 796 (void *)periph->periph_channel->chan_adapter->adapt_dev; 797 int s; 798 799 scsipi_printaddr(periph); 800 printf("timed out"); 801 802 s = splbio(); 803 804 /* 805 * If it has been through before, then a previous abort has failed, 806 * don't try abort again, reset the bus instead. 807 */ 808 if (ccb->flags & CCB_ABORT) { 809 /* abort timed out */ 810 printf(" AGAIN. Resetting Bus\n"); 811 /* Lets try resetting the bus! */ 812 if (AscResetBus(sc) == ASC_ERROR) { 813 ccb->timeout = sc->scsi_reset_wait; 814 adv_queue_ccb(sc, ccb); 815 } 816 } else { 817 /* abort the operation that has timed out */ 818 printf("\n"); 819 AscAbortCCB(sc, ccb); 820 ccb->xs->error = XS_TIMEOUT; 821 ccb->timeout = ADV_ABORT_TIMEOUT; 822 ccb->flags |= CCB_ABORT; 823 adv_queue_ccb(sc, ccb); 824 } 825 826 splx(s); 827 } 828 829 830 static void 831 adv_watchdog(arg) 832 void *arg; 833 { 834 ADV_CCB *ccb = arg; 835 struct scsipi_xfer *xs = ccb->xs; 836 struct scsipi_periph *periph = xs->xs_periph; 837 ASC_SOFTC *sc = 838 (void *)periph->periph_channel->chan_adapter->adapt_dev; 839 int s; 840 841 s = splbio(); 842 843 ccb->flags &= ~CCB_WATCHDOG; 844 adv_start_ccbs(sc); 845 846 splx(s); 847 } 848 849 850 /******************************************************************************/ 851 /* NARROW boards Interrupt callbacks */ 852 /******************************************************************************/ 853 854 855 /* 856 * adv_narrow_isr_callback() - Second Level Interrupt Handler called by AscISR() 857 * 858 * Interrupt callback function for the Narrow SCSI Asc Library. 859 */ 860 static void 861 adv_narrow_isr_callback(sc, qdonep) 862 ASC_SOFTC *sc; 863 ASC_QDONE_INFO *qdonep; 864 { 865 bus_dma_tag_t dmat = sc->sc_dmat; 866 ADV_CCB *ccb; 867 struct scsipi_xfer *xs; 868 struct scsipi_sense_data *s1, *s2; 869 870 871 ccb = adv_ccb_phys_kv(sc, qdonep->d2.ccb_ptr); 872 xs = ccb->xs; 873 874 #ifdef ASC_DEBUG 875 printf(" - ccb=0x%lx, id=%d, lun=%d, cmd=%d, ", 876 (unsigned long)ccb, 877 xs->xs_periph->periph_target, 878 xs->xs_periph->periph_lun, xs->cmd->opcode); 879 #endif 880 untimeout(adv_timeout, ccb); 881 882 /* 883 * If we were a data transfer, unload the map that described 884 * the data buffer. 885 */ 886 if (xs->datalen) { 887 bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0, 888 ccb->dmamap_xfer->dm_mapsize, 889 (xs->xs_control & XS_CTL_DATA_IN) ? 890 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); 891 bus_dmamap_unload(dmat, ccb->dmamap_xfer); 892 } 893 if ((ccb->flags & CCB_ALLOC) == 0) { 894 printf("%s: exiting ccb not allocated!\n", sc->sc_dev.dv_xname); 895 Debugger(); 896 return; 897 } 898 /* 899 * 'qdonep' contains the command's ending status. 900 */ 901 #ifdef ASC_DEBUG 902 printf("d_s=%d, h_s=%d", qdonep->d3.done_stat, qdonep->d3.host_stat); 903 #endif 904 switch (qdonep->d3.done_stat) { 905 case ASC_QD_NO_ERROR: 906 switch (qdonep->d3.host_stat) { 907 case ASC_QHSTA_NO_ERROR: 908 xs->error = XS_NOERROR; 909 xs->resid = 0; 910 break; 911 912 default: 913 /* QHSTA error occurred */ 914 xs->error = XS_DRIVER_STUFFUP; 915 break; 916 } 917 918 /* 919 * If an INQUIRY command completed successfully, then call 920 * the AscInquiryHandling() function to patch bugged boards. 921 */ 922 if ((xs->cmd->opcode == SCSICMD_Inquiry) && 923 (xs->xs_periph->periph_lun == 0) && 924 (xs->datalen - qdonep->remain_bytes) >= 8) { 925 AscInquiryHandling(sc, 926 xs->xs_periph->periph_target & 0x7, 927 (ASC_SCSI_INQUIRY *) xs->data); 928 } 929 break; 930 931 case ASC_QD_WITH_ERROR: 932 switch (qdonep->d3.host_stat) { 933 case ASC_QHSTA_NO_ERROR: 934 if (qdonep->d3.scsi_stat == SS_CHK_CONDITION) { 935 s1 = &ccb->scsi_sense; 936 s2 = &xs->sense.scsi_sense; 937 *s2 = *s1; 938 xs->error = XS_SENSE; 939 } else { 940 xs->error = XS_DRIVER_STUFFUP; 941 } 942 break; 943 944 default: 945 /* QHSTA error occurred */ 946 xs->error = XS_DRIVER_STUFFUP; 947 break; 948 } 949 break; 950 951 case ASC_QD_ABORTED_BY_HOST: 952 default: 953 xs->error = XS_DRIVER_STUFFUP; 954 break; 955 } 956 957 958 adv_free_ccb(sc, ccb); 959 xs->xs_status |= XS_STS_DONE; 960 scsipi_done(xs); 961 } 962
Indexes created Thu Oct 23 22:10:10 GMT 2025