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("$FreeBSD$"); 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 */ 61 static void ida_alloc_qcb(struct ida_softc *ida); 62 static void ida_construct_qcb(struct ida_softc *ida); 63 static void ida_start(struct ida_softc *ida); 64 static void ida_done(struct ida_softc *ida, struct ida_qcb *qcb); 65 static int ida_wait(struct ida_softc *ida, struct ida_qcb *qcb); 66 static void ida_timeout (void *arg); 67 68 static d_ioctl_t ida_ioctl; 69 static 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 76 void 77 ida_free(struct ida_softc *ida) 78 { 79 int i; 80 81 callout_stop(&ida->ch); 82 83 if (ida->buffer_dmat) { 84 for (i = 0; i < ida->num_qcbs; i++) 85 bus_dmamap_destroy(ida->buffer_dmat, ida->qcbs[i].dmamap); 86 bus_dma_tag_destroy(ida->buffer_dmat); 87 } 88 89 if (ida->hwqcb_dmat) { 90 if (ida->hwqcb_busaddr) 91 bus_dmamap_unload(ida->hwqcb_dmat, ida->hwqcb_dmamap); 92 if (ida->hwqcbs) 93 bus_dmamem_free(ida->hwqcb_dmat, ida->hwqcbs, 94 ida->hwqcb_dmamap); 95 bus_dma_tag_destroy(ida->hwqcb_dmat); 96 } 97 98 if (ida->qcbs != NULL) 99 free(ida->qcbs, M_DEVBUF); 100 101 if (ida->ih != NULL) 102 bus_teardown_intr(ida->dev, ida->irq, ida->ih); 103 104 if (ida->irq != NULL) 105 bus_release_resource(ida->dev, ida->irq_res_type, 106 0, ida->irq); 107 108 if (ida->parent_dmat != NULL) 109 bus_dma_tag_destroy(ida->parent_dmat); 110 111 if (ida->regs != NULL) 112 bus_release_resource(ida->dev, ida->regs_res_type, 113 ida->regs_res_id, ida->regs); 114 } 115 116 /* 117 * record bus address from bus_dmamap_load 118 */ 119 static void 120 ida_dma_map_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error) 121 { 122 bus_addr_t *baddr; 123 124 baddr = (bus_addr_t *)arg; 125 *baddr = segs->ds_addr; 126 } 127 128 static __inline struct ida_qcb * 129 ida_get_qcb(struct ida_softc *ida) 130 { 131 struct ida_qcb *qcb; 132 133 if ((qcb = SLIST_FIRST(&ida->free_qcbs)) != NULL) { 134 SLIST_REMOVE_HEAD(&ida->free_qcbs, link.sle); 135 } else { 136 ida_alloc_qcb(ida); 137 if ((qcb = SLIST_FIRST(&ida->free_qcbs)) != NULL) 138 SLIST_REMOVE_HEAD(&ida->free_qcbs, link.sle); 139 } 140 return (qcb); 141 } 142 143 static __inline bus_addr_t 144 idahwqcbvtop(struct ida_softc *ida, struct ida_hardware_qcb *hwqcb) 145 { 146 return (ida->hwqcb_busaddr + 147 ((bus_addr_t)hwqcb - (bus_addr_t)ida->hwqcbs)); 148 } 149 150 static __inline struct ida_qcb * 151 idahwqcbptov(struct ida_softc *ida, bus_addr_t hwqcb_addr) 152 { 153 struct ida_hardware_qcb *hwqcb; 154 155 hwqcb = (struct ida_hardware_qcb *) 156 ((bus_addr_t)ida->hwqcbs + (hwqcb_addr - ida->hwqcb_busaddr)); 157 return (hwqcb->qcb); 158 } 159 160 /* 161 * XXX 162 * since we allocate all QCB space up front during initialization, then 163 * why bother with this routine? 164 */ 165 static void 166 ida_alloc_qcb(struct ida_softc *ida) 167 { 168 struct ida_qcb *qcb; 169 int error; 170 171 if (ida->num_qcbs >= IDA_QCB_MAX) 172 return; 173 174 qcb = &ida->qcbs[ida->num_qcbs]; 175 176 error = bus_dmamap_create(ida->buffer_dmat, /*flags*/0, &qcb->dmamap); 177 if (error != 0) 178 return; 179 180 qcb->flags = QCB_FREE; 181 qcb->hwqcb = &ida->hwqcbs[ida->num_qcbs]; 182 qcb->hwqcb->qcb = qcb; 183 qcb->hwqcb_busaddr = idahwqcbvtop(ida, qcb->hwqcb); 184 SLIST_INSERT_HEAD(&ida->free_qcbs, qcb, link.sle); 185 ida->num_qcbs++; 186 } 187 188 int 189 ida_init(struct ida_softc *ida) 190 { 191 int error; 192 193 ida->unit = device_get_unit(ida->dev); 194 ida->tag = rman_get_bustag(ida->regs); 195 ida->bsh = rman_get_bushandle(ida->regs); 196 197 SLIST_INIT(&ida->free_qcbs); 198 STAILQ_INIT(&ida->qcb_queue); 199 bioq_init(&ida->bio_queue); 200 201 ida->qcbs = (struct ida_qcb *) 202 malloc(IDA_QCB_MAX * sizeof(struct ida_qcb), M_DEVBUF, 203 M_NOWAIT | M_ZERO); 204 if (ida->qcbs == NULL) 205 return (ENOMEM); 206 207 /* 208 * Create our DMA tags 209 */ 210 211 /* DMA tag for our hardware QCB structures */ 212 error = bus_dma_tag_create( 213 /* parent */ ida->parent_dmat, 214 /* alignment */ 1, 215 /* boundary */ 0, 216 /* lowaddr */ BUS_SPACE_MAXADDR, 217 /* highaddr */ BUS_SPACE_MAXADDR, 218 /* filter */ NULL, 219 /* filterarg */ NULL, 220 /* maxsize */ IDA_QCB_MAX * sizeof(struct ida_hardware_qcb), 221 /* nsegments */ 1, 222 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 223 /* flags */ 0, 224 /* lockfunc */ busdma_lock_mutex, 225 /* lockarg */ &Giant, 226 &ida->hwqcb_dmat); 227 if (error) 228 return (ENOMEM); 229 230 /* DMA tag for mapping buffers into device space */ 231 error = bus_dma_tag_create( 232 /* parent */ ida->parent_dmat, 233 /* alignment */ 1, 234 /* boundary */ 0, 235 /* lowaddr */ BUS_SPACE_MAXADDR, 236 /* highaddr */ BUS_SPACE_MAXADDR, 237 /* filter */ NULL, 238 /* filterarg */ NULL, 239 /* maxsize */ MAXBSIZE, 240 /* nsegments */ IDA_NSEG, 241 /* maxsegsz */ BUS_SPACE_MAXSIZE_32BIT, 242 /* flags */ 0, 243 /* lockfunc */ busdma_lock_mutex, 244 /* lockarg */ &Giant, 245 &ida->buffer_dmat); 246 if (error) 247 return (ENOMEM); 248 249 /* Allocation of hardware QCBs */ 250 /* XXX allocation is rounded to hardware page size */ 251 error = bus_dmamem_alloc(ida->hwqcb_dmat, 252 (void **)&ida->hwqcbs, BUS_DMA_NOWAIT, &ida->hwqcb_dmamap); 253 if (error) 254 return (ENOMEM); 255 256 /* And permanently map them in */ 257 bus_dmamap_load(ida->hwqcb_dmat, ida->hwqcb_dmamap, 258 ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb), 259 ida_dma_map_cb, &ida->hwqcb_busaddr, /*flags*/0); 260 261 bzero(ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb)); 262 263 ida_alloc_qcb(ida); /* allocate an initial qcb */ 264 265 callout_init(&ida->ch, CALLOUT_MPSAFE); 266 267 return (0); 268 } 269 270 void 271 ida_attach(struct ida_softc *ida) 272 { 273 struct ida_controller_info cinfo; 274 int error, i; 275 276 ida->cmd.int_enable(ida, 0); 277 278 error = ida_command(ida, CMD_GET_CTRL_INFO, &cinfo, sizeof(cinfo), 279 IDA_CONTROLLER, 0, DMA_DATA_IN); 280 if (error) { 281 device_printf(ida->dev, "CMD_GET_CTRL_INFO failed.\n"); 282 return; 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 device_printf(ida->dev, "CMD_START_FIRMWARE failed.\n"); 296 return; 297 } 298 } 299 300 ida->ida_dev_t = make_dev(&ida_cdevsw, ida->unit, 301 UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR, 302 "ida%d", ida->unit); 303 ida->ida_dev_t->si_drv1 = ida; 304 305 ida->num_drives = 0; 306 for (i = 0; i < cinfo.num_drvs; i++) 307 device_add_child(ida->dev, /*"idad"*/NULL, -1); 308 309 bus_generic_attach(ida->dev); 310 311 ida->cmd.int_enable(ida, 1); 312 } 313 314 int 315 ida_detach(device_t dev) 316 { 317 struct ida_softc *ida; 318 int error = 0; 319 320 ida = (struct ida_softc *)device_get_softc(dev); 321 322 /* 323 * XXX 324 * before detaching, we must make sure that the system is 325 * quiescent; nothing mounted, no pending activity. 326 */ 327 328 /* 329 * XXX 330 * now, how are we supposed to maintain a list of our drives? 331 * iterate over our "child devices"? 332 */ 333 334 destroy_dev(ida->ida_dev_t); 335 ida_free(ida); 336 return (error); 337 } 338 339 static void 340 ida_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 341 { 342 struct ida_hardware_qcb *hwqcb = (struct ida_hardware_qcb *)arg; 343 int i; 344 345 hwqcb->hdr.size = htole16((sizeof(struct ida_req) + 346 sizeof(struct ida_sgb) * IDA_NSEG) >> 2); 347 348 for (i = 0; i < nsegments; i++) { 349 hwqcb->seg[i].addr = htole32(segs[i].ds_addr); 350 hwqcb->seg[i].length = htole32(segs[i].ds_len); 351 } 352 hwqcb->req.sgcount = nsegments; 353 } 354 355 int 356 ida_command(struct ida_softc *ida, int command, void *data, int datasize, 357 int drive, u_int32_t pblkno, int flags) 358 { 359 struct ida_hardware_qcb *hwqcb; 360 struct ida_qcb *qcb; 361 bus_dmasync_op_t op; 362 int s, error; 363 364 s = splbio(); 365 qcb = ida_get_qcb(ida); 366 splx(s); 367 368 if (qcb == NULL) { 369 printf("ida_command: out of QCBs"); 370 return (EAGAIN); 371 } 372 373 hwqcb = qcb->hwqcb; 374 bzero(hwqcb, sizeof(struct ida_hdr) + sizeof(struct ida_req)); 375 376 bus_dmamap_load(ida->buffer_dmat, qcb->dmamap, 377 (void *)data, datasize, ida_setup_dmamap, hwqcb, 0); 378 op = qcb->flags & DMA_DATA_IN ? 379 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 380 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 381 382 hwqcb->hdr.drive = drive; 383 hwqcb->req.blkno = htole32(pblkno); 384 hwqcb->req.bcount = htole16(howmany(datasize, DEV_BSIZE)); 385 hwqcb->req.command = command; 386 387 qcb->flags = flags | IDA_COMMAND; 388 389 s = splbio(); 390 STAILQ_INSERT_TAIL(&ida->qcb_queue, qcb, link.stqe); 391 ida_start(ida); 392 error = ida_wait(ida, qcb); 393 splx(s); 394 395 /* XXX should have status returned here? */ 396 /* XXX have "status pointer" area in QCB? */ 397 398 return (error); 399 } 400 401 void 402 ida_submit_buf(struct ida_softc *ida, struct bio *bp) 403 { 404 bioq_insert_tail(&ida->bio_queue, bp); 405 ida_construct_qcb(ida); 406 ida_start(ida); 407 } 408 409 static void 410 ida_construct_qcb(struct ida_softc *ida) 411 { 412 struct ida_hardware_qcb *hwqcb; 413 struct ida_qcb *qcb; 414 bus_dmasync_op_t op; 415 struct bio *bp; 416 417 bp = bioq_first(&ida->bio_queue); 418 if (bp == NULL) 419 return; /* no more buffers */ 420 421 qcb = ida_get_qcb(ida); 422 if (qcb == NULL) 423 return; /* out of resources */ 424 425 bioq_remove(&ida->bio_queue, bp); 426 qcb->buf = bp; 427 qcb->flags = bp->bio_cmd == BIO_READ ? DMA_DATA_IN : DMA_DATA_OUT; 428 429 hwqcb = qcb->hwqcb; 430 bzero(hwqcb, sizeof(struct ida_hdr) + sizeof(struct ida_req)); 431 432 bus_dmamap_load(ida->buffer_dmat, qcb->dmamap, 433 (void *)bp->bio_data, bp->bio_bcount, ida_setup_dmamap, hwqcb, 0); 434 op = qcb->flags & DMA_DATA_IN ? 435 BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE; 436 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 437 438 { 439 struct idad_softc *drv = (struct idad_softc *)bp->bio_driver1; 440 hwqcb->hdr.drive = drv->drive; 441 } 442 443 hwqcb->req.blkno = bp->bio_pblkno; 444 hwqcb->req.bcount = howmany(bp->bio_bcount, DEV_BSIZE); 445 hwqcb->req.command = bp->bio_cmd == BIO_READ ? CMD_READ : CMD_WRITE; 446 447 STAILQ_INSERT_TAIL(&ida->qcb_queue, qcb, link.stqe); 448 } 449 450 /* 451 * This routine will be called from ida_intr in order to queue up more 452 * I/O, meaning that we may be in an interrupt context. Hence, we should 453 * not muck around with spl() in this routine. 454 */ 455 static void 456 ida_start(struct ida_softc *ida) 457 { 458 struct ida_qcb *qcb; 459 460 while ((qcb = STAILQ_FIRST(&ida->qcb_queue)) != NULL) { 461 if (ida->cmd.fifo_full(ida)) 462 break; 463 STAILQ_REMOVE_HEAD(&ida->qcb_queue, link.stqe); 464 /* 465 * XXX 466 * place the qcb on an active list? 467 */ 468 469 /* Set a timeout. */ 470 if (!ida->qactive) 471 callout_reset(&ida->ch, hz * 5, ida_timeout, ida); 472 ida->qactive++; 473 474 qcb->state = QCB_ACTIVE; 475 ida->cmd.submit(ida, qcb); 476 } 477 } 478 479 static int 480 ida_wait(struct ida_softc *ida, struct ida_qcb *qcb) 481 { 482 struct ida_qcb *qcb_done = NULL; 483 bus_addr_t completed; 484 int delay; 485 486 if (ida->flags & IDA_INTERRUPTS) { 487 if (tsleep(qcb, PRIBIO, "idacmd", 5 * hz)) 488 return (ETIMEDOUT); 489 return (0); 490 } 491 492 again: 493 delay = 5 * 1000 * 100; /* 5 sec delay */ 494 while ((completed = ida->cmd.done(ida)) == 0) { 495 if (delay-- == 0) 496 return (ETIMEDOUT); 497 DELAY(10); 498 } 499 500 qcb_done = idahwqcbptov(ida, completed & ~3); 501 if (qcb_done != qcb) 502 goto again; 503 ida_done(ida, qcb); 504 return (0); 505 } 506 507 void 508 ida_intr(void *data) 509 { 510 struct ida_softc *ida; 511 struct ida_qcb *qcb; 512 bus_addr_t completed; 513 514 ida = (struct ida_softc *)data; 515 516 if (ida->cmd.int_pending(ida) == 0) 517 return; /* not our interrupt */ 518 519 while ((completed = ida->cmd.done(ida)) != 0) { 520 qcb = idahwqcbptov(ida, completed & ~3); 521 522 if (qcb == NULL || qcb->state != QCB_ACTIVE) { 523 device_printf(ida->dev, 524 "ignoring completion %jx\n", (intmax_t)completed); 525 continue; 526 } 527 /* Handle "Bad Command List" errors. */ 528 if ((completed & 3) && (qcb->hwqcb->req.error == 0)) 529 qcb->hwqcb->req.error = CMD_REJECTED; 530 ida_done(ida, qcb); 531 } 532 ida_start(ida); 533 } 534 535 /* 536 * should switch out command type; may be status, not just I/O. 537 */ 538 static void 539 ida_done(struct ida_softc *ida, struct ida_qcb *qcb) 540 { 541 int error = 0; 542 543 /* 544 * finish up command 545 */ 546 if (qcb->flags & DMA_DATA_TRANSFER) { 547 bus_dmasync_op_t op; 548 549 op = qcb->flags & DMA_DATA_IN ? 550 BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE; 551 bus_dmamap_sync(ida->buffer_dmat, qcb->dmamap, op); 552 bus_dmamap_unload(ida->buffer_dmat, qcb->dmamap); 553 } 554 555 if (qcb->hwqcb->req.error & SOFT_ERROR) { 556 if (qcb->buf) 557 device_printf(ida->dev, "soft %s error\n", 558 qcb->buf->bio_cmd == BIO_READ ? 559 "read" : "write"); 560 else 561 device_printf(ida->dev, "soft error\n"); 562 } 563 if (qcb->hwqcb->req.error & HARD_ERROR) { 564 error = 1; 565 if (qcb->buf) 566 device_printf(ida->dev, "hard %s error\n", 567 qcb->buf->bio_cmd == BIO_READ ? 568 "read" : "write"); 569 else 570 device_printf(ida->dev, "hard error\n"); 571 } 572 if (qcb->hwqcb->req.error & CMD_REJECTED) { 573 error = 1; 574 device_printf(ida->dev, "invalid request\n"); 575 } 576 577 if (qcb->flags & IDA_COMMAND) { 578 if (ida->flags & IDA_INTERRUPTS) 579 wakeup(qcb); 580 } else { 581 KASSERT(qcb->buf != NULL, ("ida_done(): qcb->buf is NULL!")); 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 } 599 600 static void 601 ida_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 */ 628 struct cmd_info { 629 int cmd; 630 int len; 631 int flags; 632 }; 633 static struct cmd_info *ida_cmd_lookup(int); 634 635 static int 636 ida_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 } 675 676 static 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 }; 714 715 static struct cmd_info * 716 ida_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