Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/ida/ida.c
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999,2000 Jonathan Lemon 5 * All rights reserved. 6 * 7 # Derived from the original IDA Compaq RAID driver, which is 8 * Copyright (c) 1996, 1997, 1998, 1999 9 * Mark Dawson and David James. All rights reserved. 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 * 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 24 * FOR 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 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 /* 37 * Generic driver for Compaq SMART RAID adapters. 38 */ 39 40 #include <sys/param.h> 41 #include <sys/kernel.h> 42 #include <sys/systm.h> 43 #include <sys/lock.h> 44 #include <sys/malloc.h> 45 #include <sys/mutex.h> 46 #include <sys/stat.h> 47 48 #include <sys/bio.h> 49 #include <sys/bus.h> 50 #include <sys/conf.h> 51 #include <sys/endian.h> 52 53 #include <machine/bus.h> 54 #include <sys/rman.h> 55 56 #include <geom/geom_disk.h> 57 58 #include <dev/ida/idareg.h> 59 #include <dev/ida/idavar.h> 60 #include <dev/ida/idaio.h> 61 62 /* prototypes */ 63 static int ida_alloc_qcbs(struct ida_softc *ida); 64 static void ida_done(struct ida_softc *ida, struct ida_qcb *qcb); 65 static void ida_start(struct ida_softc *ida); 66 static void ida_startio(struct ida_softc *ida); 67 static void ida_startup(void *arg); 68 static void ida_timeout(void *arg); 69 static int ida_wait(struct ida_softc *ida, struct ida_qcb *qcb); 70 71 static d_ioctl_t ida_ioctl; 72 static struct cdevsw ida_cdevsw = { 73 .d_version = D_VERSION, 74 .d_ioctl = ida_ioctl, 75 .d_name = "ida", 76 }; 77 78 void 79 ida_free(struct ida_softc *ida) 80 { 81 int i; 82 83 if (ida->ih != NULL) 84 bus_teardown_intr(ida->dev, ida->irq, ida->ih); 85 86 mtx_lock(&ida->lock); 87 callout_stop(&ida->ch); 88 mtx_unlock(&ida->lock); 89 callout_drain(&ida->ch); 90 91 if (ida->buffer_dmat) { 92 for (i = 0; i < IDA_QCB_MAX; i++) 93 bus_dmamap_destroy(ida->buffer_dmat, ida->qcbs[i].dmamap); 94 bus_dma_tag_destroy(ida->buffer_dmat); 95 } 96 97 if (ida->hwqcb_dmat) { 98 if (ida->hwqcb_busaddr) 99 bus_dmamap_unload(ida->hwqcb_dmat, ida->hwqcb_dmamap); 100 if (ida->hwqcbs) 101 bus_dmamem_free(ida->hwqcb_dmat, ida->hwqcbs, 102 ida->hwqcb_dmamap); 103 bus_dma_tag_destroy(ida->hwqcb_dmat); 104 } 105 106 if (ida->qcbs != NULL) 107 free(ida->qcbs, M_DEVBUF); 108 109 if (ida->irq != NULL) 110 bus_release_resource(ida->dev, ida->irq_res_type, 111 0, ida->irq); 112 113 if (ida->parent_dmat != NULL) 114 bus_dma_tag_destroy(ida->parent_dmat); 115 116 if (ida->regs != NULL) 117 bus_release_resource(ida->dev, ida->regs_res_type, 118 ida->regs_res_id, ida->regs); 119 120 mtx_destroy(&ida->lock); 121 } 122 123 /* 124 * record bus address from bus_dmamap_load 125 */ 126 static void 127 ida_dma_map_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 128 { 129 bus_addr_t *baddr; 130 131 baddr = (bus_addr_t *)arg; 132 *baddr = segs->ds_addr; 133 } 134 135 static __inline struct ida_qcb * 136 ida_get_qcb(struct ida_softc *ida) 137 { 138 struct ida_qcb *qcb; 139 140 if ((qcb = SLIST_FIRST(&ida->free_qcbs)) != NULL) { 141 SLIST_REMOVE_HEAD(&ida->free_qcbs, link.sle); 142 bzero(qcb->hwqcb, sizeof(struct ida_hdr) + sizeof(struct ida_req)); 143 } 144 return (qcb); 145 } 146 147 static __inline void 148 ida_free_qcb(struct ida_softc *ida, struct ida_qcb *qcb) 149 { 150 151 qcb->state = QCB_FREE; 152 qcb->buf = NULL; 153 qcb->error = 0; 154 SLIST_INSERT_HEAD(&ida->free_qcbs, qcb, link.sle); 155 } 156 157 static __inline bus_addr_t 158 idahwqcbvtop(struct ida_softc *ida, struct ida_hardware_qcb *hwqcb) 159 { 160 return (ida->hwqcb_busaddr + 161 ((bus_addr_t)hwqcb - (bus_addr_t)ida->hwqcbs)); 162 } 163 164 static __inline struct ida_qcb * 165 idahwqcbptov(struct ida_softc *ida, bus_addr_t hwqcb_addr) 166 { 167 struct ida_hardware_qcb *hwqcb; 168 169 hwqcb = (struct ida_hardware_qcb *) 170 ((bus_addr_t)ida->hwqcbs + (hwqcb_addr - ida->hwqcb_busaddr)); 171 return (hwqcb->qcb); 172 } 173 174 static int 175 ida_alloc_qcbs(struct ida_softc *ida) 176 { 177 struct ida_qcb *qcb; 178 int error, i; 179 180 for (i = 0; i < IDA_QCB_MAX; i++) { 181 qcb = &ida->qcbs[i]; 182 183 error = bus_dmamap_create(ida->buffer_dmat, /*flags*/0, &qcb->dmamap); 184 if (error != 0) 185 return (error); 186 187 qcb->ida = ida; 188 qcb->flags = QCB_FREE; 189 qcb->hwqcb = &ida->hwqcbs[i]; 190 qcb->hwqcb->qcb = qcb; 191 qcb->hwqcb_busaddr = idahwqcbvtop(ida, qcb->hwqcb); 192 SLIST_INSERT_HEAD(&ida->free_qcbs, qcb, link.sle); 193 } 194 return (0); 195 } 196 197 int 198 ida_setup(struct ida_softc *ida) 199 { 200 struct ida_controller_info cinfo; 201 device_t child; 202 int error, i, unit; 203 204 SLIST_INIT(&ida->free_qcbs); 205 STAILQ_INIT(&ida->qcb_queue); 206 bioq_init(&ida->bio_queue); 207 208 ida->qcbs = (struct ida_qcb *) 209 malloc(IDA_QCB_MAX * sizeof(struct ida_qcb), M_DEVBUF, 210 M_NOWAIT | M_ZERO); 211 if (ida->qcbs == NULL) 212 return (ENOMEM); 213 214 /* 215 * Create our DMA tags 216 */ 217 218 /* DMA tag for our hardware QCB structures */ 219 error = bus_dma_tag_create( 220 /* parent */ ida->parent_dmat, 221 /* alignment */ 1, 222 /* boundary */ 0, 223 /* lowaddr */ BUS_SPACE_MAXADDR, 224 /* highaddr */ BUS_SPACE_MAXADDR, 225 /* filter */ NULL, 226 /* filterarg */ NULL, 227 /* maxsize */ IDA_QCB_MAX * sizeof(struct ida_hardware_qcb), 228 /* nsegments */ 1, 229 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 230 /* flags */ 0, 231 /* lockfunc */ NULL, 232 /* lockarg */ NULL, 233 &ida->hwqcb_dmat); 234 if (error) 235 return (ENOMEM); 236 237 /* DMA tag for mapping buffers into device space */ 238 error = bus_dma_tag_create( 239 /* parent */ ida->parent_dmat, 240 /* alignment */ 1, 241 /* boundary */ 0, 242 /* lowaddr */ BUS_SPACE_MAXADDR, 243 /* highaddr */ BUS_SPACE_MAXADDR, 244 /* filter */ NULL, 245 /* filterarg */ NULL, 246 /* maxsize */ DFLTPHYS, 247 /* nsegments */ IDA_NSEG, 248 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 249 /* flags */ 0, 250 /* lockfunc */ busdma_lock_mutex, 251 /* lockarg */ &ida->lock, 252 &ida->buffer_dmat); 253 if (error) 254 return (ENOMEM); 255 256 /* Allocation of hardware QCBs */ 257 /* XXX allocation is rounded to hardware page size */ 258 error = bus_dmamem_alloc(ida->hwqcb_dmat, 259 (void **)&ida->hwqcbs, BUS_DMA_NOWAIT, &ida->hwqcb_dmamap); 260 if (error) 261 return (ENOMEM); 262 263 /* And permanently map them in */ 264 bus_dmamap_load(ida->hwqcb_dmat, ida->hwqcb_dmamap, 265 ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb), 266 ida_dma_map_cb, &ida->hwqcb_busaddr, /*flags*/0); 267 268 bzero(ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb)); 269 270 error = ida_alloc_qcbs(ida); 271 if (error) 272 return (error); 273 274 mtx_lock(&ida->lock); 275 ida->cmd.int_enable(ida, 0); 276 277 error = ida_command(ida, CMD_GET_CTRL_INFO, &cinfo, sizeof(cinfo), 278 IDA_CONTROLLER, 0, DMA_DATA_IN); 279 if (error) { 280 mtx_unlock(&ida->lock); 281 device_printf(ida->dev, "CMD_GET_CTRL_INFO failed.\n"); 282 return (error); 283 } 284 285 device_printf(ida->dev, "drives=%d firm_rev=%c%c%c%c\n", 286 cinfo.num_drvs, cinfo.firm_rev[0], cinfo.firm_rev[1], 287 cinfo.firm_rev[2], cinfo.firm_rev[3]); 288 289 if (ida->flags & IDA_FIRMWARE) { 290 int data; 291 292 error = ida_command(ida, CMD_START_FIRMWARE, 293 &data, sizeof(data), IDA_CONTROLLER, 0, DMA_DATA_IN); 294 if (error) { 295 mtx_unlock(&ida->lock); 296 device_printf(ida->dev, "CMD_START_FIRMWARE failed.\n"); 297 return (error); 298 } 299 } 300 301 ida->cmd.int_enable(ida, 1); 302 ida->flags |= IDA_ATTACHED; 303 mtx_unlock(&ida->lock); 304 305 for (i = 0; i < cinfo.num_drvs; i++) { 306 child = device_add_child(ida->dev, /*"idad"*/NULL, -1); 307 if (child != NULL) 308 device_set_ivars(child, (void *)(intptr_t)i); 309 } 310 311 ida->ich.ich_func = ida_startup; 312 ida->ich.ich_arg = ida; 313 if (config_intrhook_establish(&ida->ich) != 0) { 314 device_delete_children(ida->dev); 315 device_printf(ida->dev, "Cannot establish configuration hook\n"); 316 return (error); 317 } 318 319 unit = device_get_unit(ida->dev); 320 ida->ida_dev_t = make_dev(&ida_cdevsw, unit, 321 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 322 "ida%d", unit); 323 ida->ida_dev_t->si_drv1 = ida; 324 325 return (0); 326 } 327 328 static void 329 ida_startup(void *arg) 330 { 331 struct ida_softc *ida; 332 333 ida = arg; 334 335 config_intrhook_disestablish(&ida->ich); 336 337 bus_topo_lock(); 338 bus_generic_attach(ida->dev); 339 bus_topo_unlock(); 340 } 341 342 int 343 ida_detach(device_t dev) 344 { 345 struct ida_softc *ida; 346 int error; 347 348 ida = (struct ida_softc *)device_get_softc(dev); 349 350 error = bus_generic_detach(dev); 351 if (error) 352 return (error); 353 error = device_delete_children(dev); 354 if (error) 355 return (error); 356 357 /* 358 * XXX 359 * before detaching, we must make sure that the system is 360 * quiescent; nothing mounted, no pending activity. 361 */ 362 363 /* 364 * XXX 365 * now, how are we supposed to maintain a list of our drives? 366 * iterate over our "child devices"? 367 */ 368 369 destroy_dev(ida->ida_dev_t); 370 ida_free(ida); 371 return (error); 372 } 373 374 static void 375 ida_data_cb(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 376 { 377 struct ida_hardware_qcb *hwqcb; 378 struct ida_softc *ida; 379 struct ida_qcb *qcb; 380 bus_dmasync_op_t op; 381 int i; 382 383 qcb = arg; 384 ida = qcb->ida; 385 if (!dumping) 386 mtx_assert(&ida->lock, MA_OWNED); 387 if (error) { 388 qcb->error = error; 389 ida_done(ida, qcb); 390 return; 391 } 392 393 hwqcb = qcb->hwqcb; 394 hwqcb->hdr.size = htole16((sizeof(struct ida_req) + 395 sizeof(struct ida_sgb) * IDA_NSEG) >> 2); 396 397 for (i = 0; i < nsegments; i++) { 398 hwqcb->seg[i].addr = htole32(segs[i].ds_addr); 399 hwqcb->seg[i].length = htole32(segs[i].ds_len); 400 } 401 hwqcb->req.sgcount = nsegments; 402 if (qcb->flags & DMA_DATA_TRANSFER) { 403 switch (qcb->flags & DMA_DATA_TRANSFER) { 404 case DMA_DATA_TRANSFER: 405 op = BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE; 406 break; 407 case DMA_DATA_IN: 408 op = BUS_DMASYNC_PREREAD; 409 break; 410 default: 411 KASSERT((qcb->flags & DMA_DATA_TRANSFER) == 412 DMA_DATA_OUT, ("bad DMA data flags")); 413 op = BUS_DMASYNC_PREWRITE; 414 break; 415 } 416 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 417 } 418 bus_dmamap_sync(ida->hwqcb_dmat, ida->hwqcb_dmamap, 419 BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD); 420 421 STAILQ_INSERT_TAIL(&ida->qcb_queue, qcb, link.stqe); 422 ida_start(ida); 423 ida->flags &= ~IDA_QFROZEN; 424 } 425 426 static int 427 ida_map_qcb(struct ida_softc *ida, struct ida_qcb *qcb, void *data, 428 bus_size_t datasize) 429 { 430 int error, flags; 431 432 if (ida->flags & IDA_INTERRUPTS) 433 flags = BUS_DMA_WAITOK; 434 else 435 flags = BUS_DMA_NOWAIT; 436 error = bus_dmamap_load(ida->buffer_dmat, qcb->dmamap, data, datasize, 437 ida_data_cb, qcb, flags); 438 if (error == EINPROGRESS) { 439 ida->flags |= IDA_QFROZEN; 440 error = 0; 441 } 442 return (error); 443 } 444 445 int 446 ida_command(struct ida_softc *ida, int command, void *data, int datasize, 447 int drive, u_int32_t pblkno, int flags) 448 { 449 struct ida_hardware_qcb *hwqcb; 450 struct ida_qcb *qcb; 451 int error; 452 453 if (!dumping) 454 mtx_assert(&ida->lock, MA_OWNED); 455 qcb = ida_get_qcb(ida); 456 457 if (qcb == NULL) { 458 device_printf(ida->dev, "out of QCBs\n"); 459 return (EAGAIN); 460 } 461 462 qcb->flags = flags | IDA_COMMAND; 463 hwqcb = qcb->hwqcb; 464 hwqcb->hdr.drive = drive; 465 hwqcb->req.blkno = htole32(pblkno); 466 hwqcb->req.bcount = htole16(howmany(datasize, DEV_BSIZE)); 467 hwqcb->req.command = command; 468 469 error = ida_map_qcb(ida, qcb, data, datasize); 470 if (error == 0) { 471 error = ida_wait(ida, qcb); 472 /* Don't free QCB on a timeout in case it later completes. */ 473 if (error) 474 return (error); 475 error = qcb->error; 476 } 477 478 /* XXX should have status returned here? */ 479 /* XXX have "status pointer" area in QCB? */ 480 481 ida_free_qcb(ida, qcb); 482 return (error); 483 } 484 485 void 486 ida_submit_buf(struct ida_softc *ida, struct bio *bp) 487 { 488 mtx_lock(&ida->lock); 489 bioq_insert_tail(&ida->bio_queue, bp); 490 ida_startio(ida); 491 mtx_unlock(&ida->lock); 492 } 493 494 static void 495 ida_startio(struct ida_softc *ida) 496 { 497 struct ida_hardware_qcb *hwqcb; 498 struct ida_qcb *qcb; 499 struct idad_softc *drv; 500 struct bio *bp; 501 int error; 502 503 mtx_assert(&ida->lock, MA_OWNED); 504 for (;;) { 505 if (ida->flags & IDA_QFROZEN) 506 return; 507 bp = bioq_first(&ida->bio_queue); 508 if (bp == NULL) 509 return; /* no more buffers */ 510 511 qcb = ida_get_qcb(ida); 512 if (qcb == NULL) 513 return; /* out of resources */ 514 515 bioq_remove(&ida->bio_queue, bp); 516 qcb->buf = bp; 517 qcb->flags = bp->bio_cmd == BIO_READ ? DMA_DATA_IN : DMA_DATA_OUT; 518 519 hwqcb = qcb->hwqcb; 520 drv = bp->bio_driver1; 521 hwqcb->hdr.drive = drv->drive; 522 hwqcb->req.blkno = bp->bio_pblkno; 523 hwqcb->req.bcount = howmany(bp->bio_bcount, DEV_BSIZE); 524 hwqcb->req.command = bp->bio_cmd == BIO_READ ? CMD_READ : CMD_WRITE; 525 526 error = ida_map_qcb(ida, qcb, bp->bio_data, bp->bio_bcount); 527 if (error) { 528 qcb->error = error; 529 ida_done(ida, qcb); 530 } 531 } 532 } 533 534 static void 535 ida_start(struct ida_softc *ida) 536 { 537 struct ida_qcb *qcb; 538 539 if (!dumping) 540 mtx_assert(&ida->lock, MA_OWNED); 541 while ((qcb = STAILQ_FIRST(&ida->qcb_queue)) != NULL) { 542 if (ida->cmd.fifo_full(ida)) 543 break; 544 STAILQ_REMOVE_HEAD(&ida->qcb_queue, link.stqe); 545 /* 546 * XXX 547 * place the qcb on an active list? 548 */ 549 550 /* Set a timeout. */ 551 if (!ida->qactive && !dumping) 552 callout_reset(&ida->ch, hz * 5, ida_timeout, ida); 553 ida->qactive++; 554 555 qcb->state = QCB_ACTIVE; 556 ida->cmd.submit(ida, qcb); 557 } 558 } 559 560 static int 561 ida_wait(struct ida_softc *ida, struct ida_qcb *qcb) 562 { 563 struct ida_qcb *qcb_done = NULL; 564 bus_addr_t completed; 565 int delay; 566 567 if (!dumping) 568 mtx_assert(&ida->lock, MA_OWNED); 569 if (ida->flags & IDA_INTERRUPTS) { 570 if (mtx_sleep(qcb, &ida->lock, PRIBIO, "idacmd", 5 * hz)) { 571 qcb->state = QCB_TIMEDOUT; 572 return (ETIMEDOUT); 573 } 574 return (0); 575 } 576 577 again: 578 delay = 5 * 1000 * 100; /* 5 sec delay */ 579 while ((completed = ida->cmd.done(ida)) == 0) { 580 if (delay-- == 0) { 581 qcb->state = QCB_TIMEDOUT; 582 return (ETIMEDOUT); 583 } 584 DELAY(10); 585 } 586 587 qcb_done = idahwqcbptov(ida, completed & ~3); 588 if (qcb_done != qcb) 589 goto again; 590 ida_done(ida, qcb); 591 return (0); 592 } 593 594 void 595 ida_intr(void *data) 596 { 597 struct ida_softc *ida; 598 struct ida_qcb *qcb; 599 bus_addr_t completed; 600 601 ida = (struct ida_softc *)data; 602 603 mtx_lock(&ida->lock); 604 if (ida->cmd.int_pending(ida) == 0) { 605 mtx_unlock(&ida->lock); 606 return; /* not our interrupt */ 607 } 608 609 while ((completed = ida->cmd.done(ida)) != 0) { 610 qcb = idahwqcbptov(ida, completed & ~3); 611 612 if (qcb == NULL || qcb->state != QCB_ACTIVE) { 613 device_printf(ida->dev, 614 "ignoring completion %jx\n", (intmax_t)completed); 615 continue; 616 } 617 /* Handle "Bad Command List" errors. */ 618 if ((completed & 3) && (qcb->hwqcb->req.error == 0)) 619 qcb->hwqcb->req.error = CMD_REJECTED; 620 ida_done(ida, qcb); 621 } 622 ida_startio(ida); 623 mtx_unlock(&ida->lock); 624 } 625 626 /* 627 * should switch out command type; may be status, not just I/O. 628 */ 629 static void 630 ida_done(struct ida_softc *ida, struct ida_qcb *qcb) 631 { 632 bus_dmasync_op_t op; 633 int active, error = 0; 634 635 /* 636 * finish up command 637 */ 638 if (!dumping) 639 mtx_assert(&ida->lock, MA_OWNED); 640 active = (qcb->state != QCB_FREE); 641 if (qcb->flags & DMA_DATA_TRANSFER && active) { 642 switch (qcb->flags & DMA_DATA_TRANSFER) { 643 case DMA_DATA_TRANSFER: 644 op = BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE; 645 break; 646 case DMA_DATA_IN: 647 op = BUS_DMASYNC_POSTREAD; 648 break; 649 default: 650 KASSERT((qcb->flags & DMA_DATA_TRANSFER) == 651 DMA_DATA_OUT, ("bad DMA data flags")); 652 op = BUS_DMASYNC_POSTWRITE; 653 break; 654 } 655 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 656 bus_dmamap_unload(ida->buffer_dmat, qcb->dmamap); 657 } 658 if (active) 659 bus_dmamap_sync(ida->hwqcb_dmat, ida->hwqcb_dmamap, 660 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 661 662 if (qcb->hwqcb->req.error & SOFT_ERROR) { 663 if (qcb->buf) 664 device_printf(ida->dev, "soft %s error\n", 665 qcb->buf->bio_cmd == BIO_READ ? 666 "read" : "write"); 667 else 668 device_printf(ida->dev, "soft error\n"); 669 } 670 if (qcb->hwqcb->req.error & HARD_ERROR) { 671 error = 1; 672 if (qcb->buf) 673 device_printf(ida->dev, "hard %s error\n", 674 qcb->buf->bio_cmd == BIO_READ ? 675 "read" : "write"); 676 else 677 device_printf(ida->dev, "hard error\n"); 678 } 679 if (qcb->hwqcb->req.error & CMD_REJECTED) { 680 error = 1; 681 device_printf(ida->dev, "invalid request\n"); 682 } 683 if (qcb->error) { 684 error = 1; 685 device_printf(ida->dev, "request failed to map: %d\n", qcb->error); 686 } 687 688 if (qcb->flags & IDA_COMMAND) { 689 if (ida->flags & IDA_INTERRUPTS) 690 wakeup(qcb); 691 if (qcb->state == QCB_TIMEDOUT) 692 ida_free_qcb(ida, qcb); 693 } else { 694 KASSERT(qcb->buf != NULL, ("ida_done(): qcb->buf is NULL!")); 695 if (error) 696 qcb->buf->bio_flags |= BIO_ERROR; 697 idad_intr(qcb->buf); 698 ida_free_qcb(ida, qcb); 699 } 700 701 if (!active) 702 return; 703 704 ida->qactive--; 705 /* Reschedule or cancel timeout */ 706 if (ida->qactive) 707 callout_reset(&ida->ch, hz * 5, ida_timeout, ida); 708 else 709 callout_stop(&ida->ch); 710 } 711 712 static void 713 ida_timeout(void *arg) 714 { 715 struct ida_softc *ida; 716 717 ida = (struct ida_softc *)arg; 718 device_printf(ida->dev, "%s() qactive %d\n", __func__, ida->qactive); 719 720 if (ida->flags & IDA_INTERRUPTS) 721 device_printf(ida->dev, "IDA_INTERRUPTS\n"); 722 723 device_printf(ida->dev, "\t R_CMD_FIFO: %08x\n" 724 "\t R_DONE_FIFO: %08x\n" 725 "\t R_INT_MASK: %08x\n" 726 "\t R_STATUS: %08x\n" 727 "\tR_INT_PENDING: %08x\n", 728 ida_inl(ida, R_CMD_FIFO), 729 ida_inl(ida, R_DONE_FIFO), 730 ida_inl(ida, R_INT_MASK), 731 ida_inl(ida, R_STATUS), 732 ida_inl(ida, R_INT_PENDING)); 733 734 return; 735 } 736 737 /* 738 * IOCTL stuff follows. 739 */ 740 struct cmd_info { 741 int cmd; 742 int len; 743 int flags; 744 }; 745 static struct cmd_info *ida_cmd_lookup(int); 746 747 static int 748 ida_ioctl (struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td) 749 { 750 struct ida_softc *sc; 751 struct ida_user_command *uc; 752 struct cmd_info *ci; 753 int len; 754 int flags; 755 int error; 756 int data; 757 void *daddr; 758 759 sc = (struct ida_softc *)dev->si_drv1; 760 uc = (struct ida_user_command *)addr; 761 error = 0; 762 763 switch (cmd) { 764 case IDAIO_COMMAND: 765 ci = ida_cmd_lookup(uc->command); 766 if (ci == NULL) { 767 error = EINVAL; 768 break; 769 } 770 len = ci->len; 771 flags = ci->flags; 772 if (len) 773 daddr = &uc->d.buf; 774 else { 775 daddr = &data; 776 len = sizeof(data); 777 } 778 mtx_lock(&sc->lock); 779 error = ida_command(sc, uc->command, daddr, len, 780 uc->drive, uc->blkno, flags); 781 mtx_unlock(&sc->lock); 782 break; 783 default: 784 error = ENOIOCTL; 785 break; 786 } 787 return (error); 788 } 789 790 static struct cmd_info ci_list[] = { 791 { CMD_GET_LOG_DRV_INFO, 792 sizeof(struct ida_drive_info), DMA_DATA_IN }, 793 { CMD_GET_CTRL_INFO, 794 sizeof(struct ida_controller_info), DMA_DATA_IN }, 795 { CMD_SENSE_DRV_STATUS, 796 sizeof(struct ida_drive_status), DMA_DATA_IN }, 797 { CMD_START_RECOVERY, 0, 0 }, 798 { CMD_GET_PHYS_DRV_INFO, 799 sizeof(struct ida_phys_drv_info), DMA_DATA_TRANSFER }, 800 { CMD_BLINK_DRV_LEDS, 801 sizeof(struct ida_blink_drv_leds), DMA_DATA_OUT }, 802 { CMD_SENSE_DRV_LEDS, 803 sizeof(struct ida_blink_drv_leds), DMA_DATA_IN }, 804 { CMD_GET_LOG_DRV_EXT, 805 sizeof(struct ida_drive_info_ext), DMA_DATA_IN }, 806 { CMD_RESET_CTRL, 0, 0 }, 807 { CMD_GET_CONFIG, 0, 0 }, 808 { CMD_SET_CONFIG, 0, 0 }, 809 { CMD_LABEL_LOG_DRV, 810 sizeof(struct ida_label_logical), DMA_DATA_OUT }, 811 { CMD_SET_SURFACE_DELAY, 0, 0 }, 812 { CMD_SENSE_BUS_PARAMS, 0, 0 }, 813 { CMD_SENSE_SUBSYS_INFO, 0, 0 }, 814 { CMD_SENSE_SURFACE_ATS, 0, 0 }, 815 { CMD_PASSTHROUGH, 0, 0 }, 816 { CMD_RESET_SCSI_DEV, 0, 0 }, 817 { CMD_PAUSE_BG_ACT, 0, 0 }, 818 { CMD_RESUME_BG_ACT, 0, 0 }, 819 { CMD_START_FIRMWARE, 0, 0 }, 820 { CMD_SENSE_DRV_ERR_LOG, 0, 0 }, 821 { CMD_START_CPM, 0, 0 }, 822 { CMD_SENSE_CP, 0, 0 }, 823 { CMD_STOP_CPM, 0, 0 }, 824 { CMD_FLUSH_CACHE, 0, 0 }, 825 { CMD_ACCEPT_MEDIA_EXCH, 0, 0 }, 826 { 0, 0, 0 } 827 }; 828 829 static struct cmd_info * 830 ida_cmd_lookup (int command) 831 { 832 struct cmd_info *ci; 833 834 ci = ci_list; 835 while (ci->cmd) { 836 if (ci->cmd == command) 837 return (ci); 838 ci++; 839 } 840 return (NULL); 841 }
Cache object: 8523e3cc652dbad73d50c36d3e48232b
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