ida.c revision 138853
1/*- 2 * Copyright (c) 1999,2000 Jonathan Lemon 3 * All rights reserved. 4 * 5 # Derived from the original IDA Compaq RAID driver, which is 6 * Copyright (c) 1996, 1997, 1998, 1999 7 * Mark Dawson and David James. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: head/sys/dev/ida/ida.c 138853 2004-12-14 17:45:30Z mdodd $"); 33 34/* 35 * Generic driver for Compaq SMART RAID adapters. 36 */ 37 38#include <sys/param.h> 39#include <sys/kernel.h> 40#include <sys/systm.h> 41#include <sys/malloc.h> 42#include <sys/stat.h> 43 44#include <sys/bio.h> 45#include <sys/bus.h> 46#include <sys/conf.h> 47#include <sys/endian.h> 48 49#include <machine/bus_memio.h> 50#include <machine/bus_pio.h> 51#include <machine/bus.h> 52#include <sys/rman.h> 53 54#include <geom/geom_disk.h> 55 56#include <dev/ida/idareg.h> 57#include <dev/ida/idavar.h> 58#include <dev/ida/idaio.h> 59 60/* prototypes */ 61static void ida_alloc_qcb(struct ida_softc *ida); 62static void ida_construct_qcb(struct ida_softc *ida); 63static void ida_start(struct ida_softc *ida); 64static void ida_done(struct ida_softc *ida, struct ida_qcb *qcb); 65static int ida_wait(struct ida_softc *ida, struct ida_qcb *qcb); 66static void ida_timeout (void *arg); 67 68static d_ioctl_t ida_ioctl; 69static struct cdevsw ida_cdevsw = { 70 .d_version = D_VERSION, 71 .d_flags = D_NEEDGIANT, 72 .d_ioctl = ida_ioctl, 73 .d_name = "ida", 74}; 75 76void 77ida_free(struct ida_softc *ida) 78{ 79 int i; 80 81 callout_stop(&ida->ch); 82 83 for (i = 0; i < ida->num_qcbs; i++) 84 bus_dmamap_destroy(ida->buffer_dmat, ida->qcbs[i].dmamap); 85 86 if (ida->hwqcb_busaddr) 87 bus_dmamap_unload(ida->hwqcb_dmat, ida->hwqcb_dmamap); 88 89 if (ida->hwqcbs) 90 bus_dmamem_free(ida->hwqcb_dmat, ida->hwqcbs, 91 ida->hwqcb_dmamap); 92 93 if (ida->buffer_dmat) 94 bus_dma_tag_destroy(ida->buffer_dmat); 95 96 if (ida->hwqcb_dmat) 97 bus_dma_tag_destroy(ida->hwqcb_dmat); 98 99 if (ida->qcbs != NULL) 100 free(ida->qcbs, M_DEVBUF); 101 102 if (ida->ih != NULL) 103 bus_teardown_intr(ida->dev, ida->irq, ida->ih); 104 105 if (ida->irq != NULL) 106 bus_release_resource(ida->dev, ida->irq_res_type, 107 0, ida->irq); 108 109 if (ida->parent_dmat != NULL) 110 bus_dma_tag_destroy(ida->parent_dmat); 111 112 if (ida->regs != NULL) 113 bus_release_resource(ida->dev, ida->regs_res_type, 114 ida->regs_res_id, ida->regs); 115} 116 117/* 118 * record bus address from bus_dmamap_load 119 */ 120static void 121ida_dma_map_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 122{ 123 bus_addr_t *baddr; 124 125 baddr = (bus_addr_t *)arg; 126 *baddr = segs->ds_addr; 127} 128 129static __inline struct ida_qcb * 130ida_get_qcb(struct ida_softc *ida) 131{ 132 struct ida_qcb *qcb; 133 134 if ((qcb = SLIST_FIRST(&ida->free_qcbs)) != NULL) { 135 SLIST_REMOVE_HEAD(&ida->free_qcbs, link.sle); 136 } else { 137 ida_alloc_qcb(ida); 138 if ((qcb = SLIST_FIRST(&ida->free_qcbs)) != NULL) 139 SLIST_REMOVE_HEAD(&ida->free_qcbs, link.sle); 140 } 141 return (qcb); 142} 143 144static __inline bus_addr_t 145idahwqcbvtop(struct ida_softc *ida, struct ida_hardware_qcb *hwqcb) 146{ 147 return (ida->hwqcb_busaddr + 148 ((bus_addr_t)hwqcb - (bus_addr_t)ida->hwqcbs)); 149} 150 151static __inline struct ida_qcb * 152idahwqcbptov(struct ida_softc *ida, bus_addr_t hwqcb_addr) 153{ 154 struct ida_hardware_qcb *hwqcb; 155 156 hwqcb = (struct ida_hardware_qcb *) 157 ((bus_addr_t)ida->hwqcbs + (hwqcb_addr - ida->hwqcb_busaddr)); 158 return (hwqcb->qcb); 159} 160 161/* 162 * XXX 163 * since we allocate all QCB space up front during initialization, then 164 * why bother with this routine? 165 */ 166static void 167ida_alloc_qcb(struct ida_softc *ida) 168{ 169 struct ida_qcb *qcb; 170 int error; 171 172 if (ida->num_qcbs >= IDA_QCB_MAX) 173 return; 174 175 qcb = &ida->qcbs[ida->num_qcbs]; 176 177 error = bus_dmamap_create(ida->buffer_dmat, /*flags*/0, &qcb->dmamap); 178 if (error != 0) 179 return; 180 181 qcb->flags = QCB_FREE; 182 qcb->hwqcb = &ida->hwqcbs[ida->num_qcbs]; 183 qcb->hwqcb->qcb = qcb; 184 qcb->hwqcb_busaddr = idahwqcbvtop(ida, qcb->hwqcb); 185 SLIST_INSERT_HEAD(&ida->free_qcbs, qcb, link.sle); 186 ida->num_qcbs++; 187} 188 189int 190ida_init(struct ida_softc *ida) 191{ 192 int error; 193 194 ida->unit = device_get_unit(ida->dev); 195 ida->tag = rman_get_bustag(ida->regs); 196 ida->bsh = rman_get_bushandle(ida->regs); 197 198 SLIST_INIT(&ida->free_qcbs); 199 STAILQ_INIT(&ida->qcb_queue); 200 bioq_init(&ida->bio_queue); 201 202 ida->qcbs = (struct ida_qcb *) 203 malloc(IDA_QCB_MAX * sizeof(struct ida_qcb), M_DEVBUF, 204 M_NOWAIT | M_ZERO); 205 if (ida->qcbs == NULL) 206 return (ENOMEM); 207 208 /* 209 * Create our DMA tags 210 */ 211 212 /* DMA tag for our hardware QCB structures */ 213 error = bus_dma_tag_create( 214 /* parent */ ida->parent_dmat, 215 /* alignment */ 1, 216 /* boundary */ 0, 217 /* lowaddr */ BUS_SPACE_MAXADDR, 218 /* highaddr */ BUS_SPACE_MAXADDR, 219 /* filter */ NULL, 220 /* filterarg */ NULL, 221 /* maxsize */ IDA_QCB_MAX * sizeof(struct ida_hardware_qcb), 222 /* nsegments */ 1, 223 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 224 /* flags */ 0, 225 /* lockfunc */ busdma_lock_mutex, 226 /* lockarg */ &Giant, 227 &ida->hwqcb_dmat); 228 if (error) 229 return (ENOMEM); 230 231 /* DMA tag for mapping buffers into device space */ 232 error = bus_dma_tag_create( 233 /* parent */ ida->parent_dmat, 234 /* alignment */ 1, 235 /* boundary */ 0, 236 /* lowaddr */ BUS_SPACE_MAXADDR, 237 /* highaddr */ BUS_SPACE_MAXADDR, 238 /* filter */ NULL, 239 /* filterarg */ NULL, 240 /* maxsize */ MAXBSIZE, 241 /* nsegments */ IDA_NSEG, 242 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 243 /* flags */ 0, 244 /* lockfunc */ busdma_lock_mutex, 245 /* lockarg */ &Giant, 246 &ida->buffer_dmat); 247 if (error) 248 return (ENOMEM); 249 250 /* Allocation of hardware QCBs */ 251 /* XXX allocation is rounded to hardware page size */ 252 error = bus_dmamem_alloc(ida->hwqcb_dmat, 253 (void **)&ida->hwqcbs, BUS_DMA_NOWAIT, &ida->hwqcb_dmamap); 254 if (error) 255 return (ENOMEM); 256 257 /* And permanently map them in */ 258 bus_dmamap_load(ida->hwqcb_dmat, ida->hwqcb_dmamap, 259 ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb), 260 ida_dma_map_cb, &ida->hwqcb_busaddr, /*flags*/0); 261 262 bzero(ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb)); 263 264 ida_alloc_qcb(ida); /* allocate an initial qcb */ 265 266 callout_init(&ida->ch, CALLOUT_MPSAFE); 267 268 return (0); 269} 270 271void 272ida_attach(struct ida_softc *ida) 273{ 274 struct ida_controller_info cinfo; 275 int error, i; 276 277 ida->cmd.int_enable(ida, 0); 278 279 error = ida_command(ida, CMD_GET_CTRL_INFO, &cinfo, sizeof(cinfo), 280 IDA_CONTROLLER, 0, DMA_DATA_IN); 281 if (error) { 282 device_printf(ida->dev, "CMD_GET_CTRL_INFO failed.\n"); 283 return; 284 } 285 286 device_printf(ida->dev, "drives=%d firm_rev=%c%c%c%c\n", 287 cinfo.num_drvs, cinfo.firm_rev[0], cinfo.firm_rev[1], 288 cinfo.firm_rev[2], cinfo.firm_rev[3]); 289 290 if (ida->flags & IDA_FIRMWARE) { 291 int data; 292 293 error = ida_command(ida, CMD_START_FIRMWARE, 294 &data, sizeof(data), IDA_CONTROLLER, 0, DMA_DATA_IN); 295 if (error) { 296 device_printf(ida->dev, "CMD_START_FIRMWARE failed.\n"); 297 return; 298 } 299 } 300 301 ida->ida_dev_t = make_dev(&ida_cdevsw, ida->unit, 302 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 303 "ida%d", ida->unit); 304 ida->ida_dev_t->si_drv1 = ida; 305 306 ida->num_drives = 0; 307 for (i = 0; i < cinfo.num_drvs; i++) 308 device_add_child(ida->dev, /*"idad"*/NULL, -1); 309 310 bus_generic_attach(ida->dev); 311 312 ida->cmd.int_enable(ida, 1); 313} 314 315int 316ida_detach(device_t dev) 317{ 318 struct ida_softc *ida; 319 int error = 0; 320 321 ida = (struct ida_softc *)device_get_softc(dev); 322 323 /* 324 * XXX 325 * before detaching, we must make sure that the system is 326 * quiescent; nothing mounted, no pending activity. 327 */ 328 329 /* 330 * XXX 331 * now, how are we supposed to maintain a list of our drives? 332 * iterate over our "child devices"? 333 */ 334 335 destroy_dev(ida->ida_dev_t); 336 ida_free(ida); 337 return (error); 338} 339 340static void 341ida_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 342{ 343 struct ida_hardware_qcb *hwqcb = (struct ida_hardware_qcb *)arg; 344 int i; 345 346 hwqcb->hdr.size = htole16((sizeof(struct ida_req) + 347 sizeof(struct ida_sgb) * IDA_NSEG) >> 2); 348 349 for (i = 0; i < nsegments; i++) { 350 hwqcb->seg[i].addr = htole32(segs[i].ds_addr); 351 hwqcb->seg[i].length = htole32(segs[i].ds_len); 352 } 353 hwqcb->req.sgcount = nsegments; 354} 355 356int 357ida_command(struct ida_softc *ida, int command, void *data, int datasize, 358 int drive, u_int32_t pblkno, int flags) 359{ 360 struct ida_hardware_qcb *hwqcb; 361 struct ida_qcb *qcb; 362 bus_dmasync_op_t op; 363 int s, error; 364 365 s = splbio(); 366 qcb = ida_get_qcb(ida); 367 splx(s); 368 369 if (qcb == NULL) { 370 printf("ida_command: out of QCBs"); 371 return (EAGAIN); 372 } 373 374 hwqcb = qcb->hwqcb; 375 bzero(hwqcb, sizeof(struct ida_hdr) + sizeof(struct ida_req)); 376 377 bus_dmamap_load(ida->buffer_dmat, qcb->dmamap, 378 (void *)data, datasize, ida_setup_dmamap, hwqcb, 0); 379 op = qcb->flags & DMA_DATA_IN ? 380 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 381 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 382 383 hwqcb->hdr.drive = drive; 384 hwqcb->req.blkno = htole32(pblkno); 385 hwqcb->req.bcount = htole16(howmany(datasize, DEV_BSIZE)); 386 hwqcb->req.command = command; 387 388 qcb->flags = flags | IDA_COMMAND; 389 390 s = splbio(); 391 STAILQ_INSERT_TAIL(&ida->qcb_queue, qcb, link.stqe); 392 ida_start(ida); 393 error = ida_wait(ida, qcb); 394 splx(s); 395 396 /* XXX should have status returned here? */ 397 /* XXX have "status pointer" area in QCB? */ 398 399 return (error); 400} 401 402void 403ida_submit_buf(struct ida_softc *ida, struct bio *bp) 404{ 405 bioq_insert_tail(&ida->bio_queue, bp); 406 ida_construct_qcb(ida); 407 ida_start(ida); 408} 409 410static void 411ida_construct_qcb(struct ida_softc *ida) 412{ 413 struct ida_hardware_qcb *hwqcb; 414 struct ida_qcb *qcb; 415 bus_dmasync_op_t op; 416 struct bio *bp; 417 418 bp = bioq_first(&ida->bio_queue); 419 if (bp == NULL) 420 return; /* no more buffers */ 421 422 qcb = ida_get_qcb(ida); 423 if (qcb == NULL) 424 return; /* out of resources */ 425 426 bioq_remove(&ida->bio_queue, bp); 427 qcb->buf = bp; 428 qcb->flags = bp->bio_cmd == BIO_READ ? DMA_DATA_IN : DMA_DATA_OUT; 429 430 hwqcb = qcb->hwqcb; 431 bzero(hwqcb, sizeof(struct ida_hdr) + sizeof(struct ida_req)); 432 433 bus_dmamap_load(ida->buffer_dmat, qcb->dmamap, 434 (void *)bp->bio_data, bp->bio_bcount, ida_setup_dmamap, hwqcb, 0); 435 op = qcb->flags & DMA_DATA_IN ? 436 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 437 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 438 439 { 440 struct idad_softc *drv = (struct idad_softc *)bp->bio_driver1; 441 hwqcb->hdr.drive = drv->drive; 442 } 443 444 hwqcb->req.blkno = bp->bio_pblkno; 445 hwqcb->req.bcount = howmany(bp->bio_bcount, DEV_BSIZE); 446 hwqcb->req.command = bp->bio_cmd == BIO_READ ? CMD_READ : CMD_WRITE; 447 448 STAILQ_INSERT_TAIL(&ida->qcb_queue, qcb, link.stqe); 449} 450 451/* 452 * This routine will be called from ida_intr in order to queue up more 453 * I/O, meaning that we may be in an interrupt context. Hence, we should 454 * not muck around with spl() in this routine. 455 */ 456static void 457ida_start(struct ida_softc *ida) 458{ 459 struct ida_qcb *qcb; 460 461 while ((qcb = STAILQ_FIRST(&ida->qcb_queue)) != NULL) { 462 if (ida->cmd.fifo_full(ida)) 463 break; 464 STAILQ_REMOVE_HEAD(&ida->qcb_queue, link.stqe); 465 /* 466 * XXX 467 * place the qcb on an active list? 468 */ 469 470 /* Set a timeout. */ 471 if (!ida->qactive) 472 callout_reset(&ida->ch, hz * 5, ida_timeout, ida); 473 ida->qactive++; 474 475 qcb->state = QCB_ACTIVE; 476 ida->cmd.submit(ida, qcb); 477 } 478} 479 480static int 481ida_wait(struct ida_softc *ida, struct ida_qcb *qcb) 482{ 483 struct ida_qcb *qcb_done = NULL; 484 bus_addr_t completed; 485 int delay; 486 487 if (ida->flags & IDA_INTERRUPTS) { 488 if (tsleep(qcb, PRIBIO, "idacmd", 5 * hz)) 489 return (ETIMEDOUT); 490 return (0); 491 } 492 493again: 494 delay = 5 * 1000 * 100; /* 5 sec delay */ 495 while ((completed = ida->cmd.done(ida)) == 0) { 496 if (delay-- == 0) 497 return (ETIMEDOUT); 498 DELAY(10); 499 } 500 501 qcb_done = idahwqcbptov(ida, completed & ~3); 502 if (qcb_done != qcb) 503 goto again; 504 ida_done(ida, qcb); 505 return (0); 506} 507 508void 509ida_intr(void *data) 510{ 511 struct ida_softc *ida; 512 struct ida_qcb *qcb; 513 bus_addr_t completed; 514 515 ida = (struct ida_softc *)data; 516 517 if (ida->cmd.int_pending(ida) == 0) 518 return; /* not our interrupt */ 519 520 while ((completed = ida->cmd.done(ida)) != 0) { 521 qcb = idahwqcbptov(ida, completed & ~3); 522 523 if (qcb == NULL || qcb->state != QCB_ACTIVE) { 524 device_printf(ida->dev, 525 "ignoring completion %jx\n", (intmax_t)completed); 526 continue; 527 } 528 /* Handle "Bad Command List" errors. */ 529 if ((completed & 3) && (qcb->hwqcb->req.error == 0)) 530 qcb->hwqcb->req.error = CMD_REJECTED; 531 ida_done(ida, qcb); 532 } 533 ida_start(ida); 534} 535 536/* 537 * should switch out command type; may be status, not just I/O. 538 */ 539static void 540ida_done(struct ida_softc *ida, struct ida_qcb *qcb) 541{ 542 int error = 0; 543 544 /* 545 * finish up command 546 */ 547 if (qcb->flags & DMA_DATA_TRANSFER) { 548 bus_dmasync_op_t op; 549 550 op = qcb->flags & DMA_DATA_IN ? 551 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; 552 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 553 bus_dmamap_unload(ida->buffer_dmat, qcb->dmamap); 554 } 555 556 if (qcb->hwqcb->req.error & SOFT_ERROR) { 557 if (qcb->buf) 558 device_printf(ida->dev, "soft %s error\n", 559 qcb->buf->bio_cmd == BIO_READ ? 560 "read" : "write"); 561 else 562 device_printf(ida->dev, "soft error\n"); 563 } 564 if (qcb->hwqcb->req.error & HARD_ERROR) { 565 error = 1; 566 if (qcb->buf) 567 device_printf(ida->dev, "hard %s error\n", 568 qcb->buf->bio_cmd == BIO_READ ? 569 "read" : "write"); 570 else 571 device_printf(ida->dev, "hard error\n"); 572 } 573 if (qcb->hwqcb->req.error & CMD_REJECTED) { 574 error = 1; 575 device_printf(ida->dev, "invalid request\n"); 576 } 577 578 if (qcb->flags & IDA_COMMAND) { 579 if (ida->flags & IDA_INTERRUPTS) 580 wakeup(qcb); 581 } else { 582 if (error) 583 qcb->buf->bio_flags |= BIO_ERROR; 584 idad_intr(qcb->buf); 585 } 586 587 ida->qactive--; 588 /* Reschedule or cancel timeout */ 589 if (ida->qactive) 590 callout_reset(&ida->ch, hz * 5, ida_timeout, ida); 591 else 592 callout_stop(&ida->ch); 593 594 qcb->state = QCB_FREE; 595 qcb->buf = NULL; 596 SLIST_INSERT_HEAD(&ida->free_qcbs, qcb, link.sle); 597 ida_construct_qcb(ida); 598} 599 600static void 601ida_timeout (void *arg) 602{ 603 struct ida_softc *ida; 604 605 ida = (struct ida_softc *)arg; 606 device_printf(ida->dev, "%s() qactive %d\n", __func__, ida->qactive); 607 608 if (ida->flags & IDA_INTERRUPTS) 609 device_printf(ida->dev, "IDA_INTERRUPTS\n"); 610 611 device_printf(ida->dev, "\t R_CMD_FIFO: %08x\n" 612 "\t R_DONE_FIFO: %08x\n" 613 "\t R_INT_MASK: %08x\n" 614 "\t R_STATUS: %08x\n" 615 "\tR_INT_PENDING: %08x\n", 616 ida_inl(ida, R_CMD_FIFO), 617 ida_inl(ida, R_DONE_FIFO), 618 ida_inl(ida, R_INT_MASK), 619 ida_inl(ida, R_STATUS), 620 ida_inl(ida, R_INT_PENDING)); 621 622 return; 623} 624 625/* 626 * IOCTL stuff follows. 627 */ 628struct cmd_info { 629 int cmd; 630 int len; 631 int flags; 632}; 633static struct cmd_info *ida_cmd_lookup(int); 634 635static int 636ida_ioctl (struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td) 637{ 638 struct ida_softc *sc; 639 struct ida_user_command *uc; 640 struct cmd_info *ci; 641 int len; 642 int flags; 643 int error; 644 int data; 645 void *daddr; 646 647 sc = (struct ida_softc *)dev->si_drv1; 648 uc = (struct ida_user_command *)addr; 649 error = 0; 650 651 switch (cmd) { 652 case IDAIO_COMMAND: 653 ci = ida_cmd_lookup(uc->command); 654 if (ci == NULL) { 655 error = EINVAL; 656 break; 657 } 658 len = ci->len; 659 flags = ci->flags; 660 if (len) 661 daddr = &uc->d.buf; 662 else { 663 daddr = &data; 664 len = sizeof(data); 665 } 666 error = ida_command(sc, uc->command, daddr, len, 667 uc->drive, uc->blkno, flags); 668 break; 669 default: 670 error = ENOIOCTL; 671 break; 672 } 673 return (error); 674} 675 676static struct cmd_info ci_list[] = { 677 { CMD_GET_LOG_DRV_INFO, 678 sizeof(struct ida_drive_info), DMA_DATA_IN }, 679 { CMD_GET_CTRL_INFO, 680 sizeof(struct ida_controller_info), DMA_DATA_IN }, 681 { CMD_SENSE_DRV_STATUS, 682 sizeof(struct ida_drive_status), DMA_DATA_IN }, 683 { CMD_START_RECOVERY, 0, 0 }, 684 { CMD_GET_PHYS_DRV_INFO, 685 sizeof(struct ida_phys_drv_info), DMA_DATA_TRANSFER }, 686 { CMD_BLINK_DRV_LEDS, 687 sizeof(struct ida_blink_drv_leds), DMA_DATA_OUT }, 688 { CMD_SENSE_DRV_LEDS, 689 sizeof(struct ida_blink_drv_leds), DMA_DATA_IN }, 690 { CMD_GET_LOG_DRV_EXT, 691 sizeof(struct ida_drive_info_ext), DMA_DATA_IN }, 692 { CMD_RESET_CTRL, 0, 0 }, 693 { CMD_GET_CONFIG, 0, 0 }, 694 { CMD_SET_CONFIG, 0, 0 }, 695 { CMD_LABEL_LOG_DRV, 696 sizeof(struct ida_label_logical), DMA_DATA_OUT }, 697 { CMD_SET_SURFACE_DELAY, 0, 0 }, 698 { CMD_SENSE_BUS_PARAMS, 0, 0 }, 699 { CMD_SENSE_SUBSYS_INFO, 0, 0 }, 700 { CMD_SENSE_SURFACE_ATS, 0, 0 }, 701 { CMD_PASSTHROUGH, 0, 0 }, 702 { CMD_RESET_SCSI_DEV, 0, 0 }, 703 { CMD_PAUSE_BG_ACT, 0, 0 }, 704 { CMD_RESUME_BG_ACT, 0, 0 }, 705 { CMD_START_FIRMWARE, 0, 0 }, 706 { CMD_SENSE_DRV_ERR_LOG, 0, 0 }, 707 { CMD_START_CPM, 0, 0 }, 708 { CMD_SENSE_CP, 0, 0 }, 709 { CMD_STOP_CPM, 0, 0 }, 710 { CMD_FLUSH_CACHE, 0, 0 }, 711 { CMD_ACCEPT_MEDIA_EXCH, 0, 0 }, 712 { 0, 0, 0 } 713}; 714 715static struct cmd_info * 716ida_cmd_lookup (int command) 717{ 718 struct cmd_info *ci; 719 720 ci = ci_list; 721 while (ci->cmd) { 722 if (ci->cmd == command) 723 return (ci); 724 ci++; 725 } 726 return (NULL); 727} 728