wd.c revision 1.295
1 /* $NetBSD: wd.c,v 1.295 2004/09/28 18:22:33 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Charles M. Hannum and by Onno van der Linden. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the NetBSD 50 * Foundation, Inc. and its contributors. 51 * 4. Neither the name of The NetBSD Foundation nor the names of its 52 * contributors may be used to endorse or promote products derived 53 * from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 56 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 65 * POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.295 2004/09/28 18:22:33 bouyer Exp $"); 70 71 #ifndef ATADEBUG 72 #define ATADEBUG 73 #endif /* ATADEBUG */ 74 75 #include "rnd.h" 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/stat.h> 83 #include <sys/ioctl.h> 84 #include <sys/buf.h> 85 #include <sys/uio.h> 86 #include <sys/malloc.h> 87 #include <sys/device.h> 88 #include <sys/disklabel.h> 89 #include <sys/disk.h> 90 #include <sys/syslog.h> 91 #include <sys/proc.h> 92 #include <sys/vnode.h> 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <machine/intr.h> 98 #include <machine/bus.h> 99 100 #include <dev/ata/atareg.h> 101 #include <dev/ata/atavar.h> 102 #include <dev/ata/wdvar.h> 103 #include <dev/ic/wdcreg.h> 104 #include <sys/ataio.h> 105 #include "locators.h" 106 107 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 108 109 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 110 #define WDIORETRIES 5 /* number of retries before giving up */ 111 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 112 113 #define WDUNIT(dev) DISKUNIT(dev) 114 #define WDPART(dev) DISKPART(dev) 115 #define WDMINOR(unit, part) DISKMINOR(unit, part) 116 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 117 118 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 119 120 #define DEBUG_INTR 0x01 121 #define DEBUG_XFERS 0x02 122 #define DEBUG_STATUS 0x04 123 #define DEBUG_FUNCS 0x08 124 #define DEBUG_PROBE 0x10 125 #ifdef ATADEBUG 126 int wdcdebug_wd_mask = 0x0; 127 #define ATADEBUG_PRINT(args, level) \ 128 if (wdcdebug_wd_mask & (level)) \ 129 printf args 130 #else 131 #define ATADEBUG_PRINT(args, level) 132 #endif 133 134 int wdprobe(struct device *, struct cfdata *, void *); 135 void wdattach(struct device *, struct device *, void *); 136 int wddetach(struct device *, int); 137 int wdactivate(struct device *, enum devact); 138 int wdprint(void *, char *); 139 void wdperror(const struct wd_softc *); 140 141 CFATTACH_DECL(wd, sizeof(struct wd_softc), 142 wdprobe, wdattach, wddetach, wdactivate); 143 144 extern struct cfdriver wd_cd; 145 146 dev_type_open(wdopen); 147 dev_type_close(wdclose); 148 dev_type_read(wdread); 149 dev_type_write(wdwrite); 150 dev_type_ioctl(wdioctl); 151 dev_type_strategy(wdstrategy); 152 dev_type_dump(wddump); 153 dev_type_size(wdsize); 154 155 const struct bdevsw wd_bdevsw = { 156 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 157 }; 158 159 const struct cdevsw wd_cdevsw = { 160 wdopen, wdclose, wdread, wdwrite, wdioctl, 161 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 162 }; 163 164 /* 165 * Glue necessary to hook WDCIOCCOMMAND into physio 166 */ 167 168 struct wd_ioctl { 169 LIST_ENTRY(wd_ioctl) wi_list; 170 struct buf wi_bp; 171 struct uio wi_uio; 172 struct iovec wi_iov; 173 atareq_t wi_atareq; 174 struct wd_softc *wi_softc; 175 }; 176 177 LIST_HEAD(, wd_ioctl) wi_head; 178 179 struct wd_ioctl *wi_find(struct buf *); 180 void wi_free(struct wd_ioctl *); 181 struct wd_ioctl *wi_get(void); 182 void wdioctlstrategy(struct buf *); 183 184 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 185 void wdgetdisklabel(struct wd_softc *); 186 void wdstart(void *); 187 void __wdstart(struct wd_softc*, struct buf *); 188 void wdrestart(void *); 189 void wddone(void *); 190 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 191 int wd_standby(struct wd_softc *, int); 192 int wd_flushcache(struct wd_softc *, int); 193 void wd_shutdown(void *); 194 195 int wd_getcache(struct wd_softc *, int *); 196 int wd_setcache(struct wd_softc *, int); 197 198 struct dkdriver wddkdriver = { wdstrategy, minphys }; 199 200 #ifdef HAS_BAD144_HANDLING 201 static void bad144intern(struct wd_softc *); 202 #endif 203 204 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 205 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 206 207 /* 208 * Quirk table for IDE drives. Put more-specific matches first, since 209 * a simple globbing routine is used for matching. 210 */ 211 static const struct wd_quirk { 212 const char *wdq_match; /* inquiry pattern to match */ 213 int wdq_quirks; /* drive quirks */ 214 } wd_quirk_table[] = { 215 /* 216 * Some Seagate S-ATA drives have a PHY which can get confused 217 * with the way data is packetized by some S-ATA controllers. 218 * 219 * The work-around is to split in two any write transfer whose 220 * sector count % 15 == 1 (assuming 512 byte sectors). 221 * 222 * XXX This is an incomplete list. There are at least a couple 223 * XXX more model numbers. If you have trouble with such transfers 224 * XXX (8K is the most common) on Seagate S-ATA drives, please 225 * XXX notify thorpej (at) NetBSD.org. 226 */ 227 { "ST3120023AS", 228 WD_QUIRK_SPLIT_MOD15_WRITE }, 229 { "ST380023AS", 230 WD_QUIRK_SPLIT_MOD15_WRITE }, 231 232 /* 233 * This seagate drive seems to have issue addressing sector 0xfffffff 234 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 235 * LBA48 236 */ 237 { "ST3200822A", 238 WD_QUIRK_FORCE_LBA48 }, 239 240 { NULL, 241 0 } 242 }; 243 244 static const struct wd_quirk * 245 wd_lookup_quirks(const char *name) 246 { 247 const struct wd_quirk *wdq; 248 const char *estr; 249 250 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 251 /* 252 * We only want exact matches (which include matches 253 * against globbing characters). 254 */ 255 if (pmatch(name, wdq->wdq_match, &estr) == 2) 256 return (wdq); 257 } 258 return (NULL); 259 } 260 261 int 262 wdprobe(struct device *parent, struct cfdata *match, void *aux) 263 { 264 struct ata_device *adev = aux; 265 266 if (adev == NULL) 267 return 0; 268 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 269 return 0; 270 271 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 272 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 273 return 0; 274 return 1; 275 } 276 277 void 278 wdattach(struct device *parent, struct device *self, void *aux) 279 { 280 struct wd_softc *wd = (void *)self; 281 struct ata_device *adev= aux; 282 int i, blank; 283 char buf[41], pbuf[9], c, *p, *q; 284 const struct wd_quirk *wdq; 285 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 286 287 callout_init(&wd->sc_restart_ch); 288 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT()|BUFQ_SORT_RAWBLOCK); 289 #ifdef WD_SOFTBADSECT 290 SLIST_INIT(&wd->sc_bslist); 291 #endif 292 wd->atabus = adev->adev_bustype; 293 wd->openings = adev->adev_openings; 294 wd->drvp = adev->adev_drv_data; 295 296 wd->drvp->drv_done = wddone; 297 wd->drvp->drv_softc = &wd->sc_dev; 298 299 aprint_naive("\n"); 300 301 /* read our drive info */ 302 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 303 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 304 return; 305 } 306 307 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 308 i < sizeof(wd->sc_params.atap_model); i++) { 309 c = *p++; 310 if (c == '\0') 311 break; 312 if (c != ' ') { 313 if (blank) { 314 *q++ = ' '; 315 blank = 0; 316 } 317 *q++ = c; 318 } else 319 blank = 1; 320 } 321 *q++ = '\0'; 322 323 aprint_normal(": <%s>\n", buf); 324 325 wdq = wd_lookup_quirks(buf); 326 if (wdq != NULL) 327 wd->sc_quirks = wdq->wdq_quirks; 328 329 if ((wd->sc_params.atap_multi & 0xff) > 1) { 330 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 331 } else { 332 wd->sc_multi = 1; 333 } 334 335 aprint_normal("%s: drive supports %d-sector PIO transfers,", 336 wd->sc_dev.dv_xname, wd->sc_multi); 337 338 /* 48-bit LBA addressing */ 339 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 340 wd->sc_flags |= WDF_LBA48; 341 342 /* Prior to ATA-4, LBA was optional. */ 343 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 344 wd->sc_flags |= WDF_LBA; 345 #if 0 346 /* ATA-4 requires LBA. */ 347 if (wd->sc_params.atap_ataversion != 0xffff && 348 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 349 wd->sc_flags |= WDF_LBA; 350 #endif 351 352 if ((wd->sc_flags & WDF_LBA48) != 0) { 353 aprint_normal(" LBA48 addressing\n"); 354 wd->sc_capacity = 355 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 356 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 357 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 358 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 359 } else if ((wd->sc_flags & WDF_LBA) != 0) { 360 aprint_normal(" LBA addressing\n"); 361 wd->sc_capacity = 362 (wd->sc_params.atap_capacity[1] << 16) | 363 wd->sc_params.atap_capacity[0]; 364 } else { 365 aprint_normal(" chs addressing\n"); 366 wd->sc_capacity = 367 wd->sc_params.atap_cylinders * 368 wd->sc_params.atap_heads * 369 wd->sc_params.atap_sectors; 370 } 371 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 372 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 373 "%d bytes/sect x %llu sectors\n", 374 self->dv_xname, pbuf, 375 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 376 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 377 wd->sc_params.atap_cylinders, 378 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 379 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 380 381 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 382 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 383 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 384 /* 385 * Initialize and attach the disk structure. 386 */ 387 wd->sc_dk.dk_driver = &wddkdriver; 388 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 389 disk_attach(&wd->sc_dk); 390 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 391 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 392 if (wd->sc_sdhook == NULL) 393 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 394 wd->sc_dev.dv_xname); 395 #if NRND > 0 396 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 397 RND_TYPE_DISK, 0); 398 #endif 399 400 /* Discover wedges on this disk. */ 401 dkwedge_discover(&wd->sc_dk); 402 } 403 404 int 405 wdactivate(struct device *self, enum devact act) 406 { 407 int rv = 0; 408 409 switch (act) { 410 case DVACT_ACTIVATE: 411 rv = EOPNOTSUPP; 412 break; 413 414 case DVACT_DEACTIVATE: 415 /* 416 * Nothing to do; we key off the device's DVF_ACTIVATE. 417 */ 418 break; 419 } 420 return (rv); 421 } 422 423 int 424 wddetach(struct device *self, int flags) 425 { 426 struct wd_softc *sc = (struct wd_softc *)self; 427 struct buf *bp; 428 int s, bmaj, cmaj, i, mn; 429 430 /* locate the major number */ 431 bmaj = bdevsw_lookup_major(&wd_bdevsw); 432 cmaj = cdevsw_lookup_major(&wd_cdevsw); 433 434 /* Nuke the vnodes for any open instances. */ 435 for (i = 0; i < MAXPARTITIONS; i++) { 436 mn = WDMINOR(self->dv_unit, i); 437 vdevgone(bmaj, mn, mn, VBLK); 438 vdevgone(cmaj, mn, mn, VCHR); 439 } 440 441 /* Delete all of our wedges. */ 442 dkwedge_delall(&sc->sc_dk); 443 444 s = splbio(); 445 446 /* Kill off any queued buffers. */ 447 while ((bp = BUFQ_GET(&sc->sc_q)) != NULL) { 448 bp->b_error = EIO; 449 bp->b_flags |= B_ERROR; 450 bp->b_resid = bp->b_bcount; 451 biodone(bp); 452 } 453 454 bufq_free(&sc->sc_q); 455 sc->atabus->ata_killpending(sc->drvp); 456 457 splx(s); 458 459 /* Detach disk. */ 460 disk_detach(&sc->sc_dk); 461 462 #ifdef WD_SOFTBADSECT 463 /* Clean out the bad sector list */ 464 while (!SLIST_EMPTY(&sc->sc_bslist)) { 465 void *head = SLIST_FIRST(&sc->sc_bslist); 466 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 467 free(head, M_TEMP); 468 } 469 sc->sc_bscount = 0; 470 #endif 471 472 /* Get rid of the shutdown hook. */ 473 if (sc->sc_sdhook != NULL) 474 shutdownhook_disestablish(sc->sc_sdhook); 475 476 #if NRND > 0 477 /* Unhook the entropy source. */ 478 rnd_detach_source(&sc->rnd_source); 479 #endif 480 481 sc->drvp->drive_flags = 0; /* no drive any more here */ 482 483 return (0); 484 } 485 486 /* 487 * Read/write routine for a buffer. Validates the arguments and schedules the 488 * transfer. Does not wait for the transfer to complete. 489 */ 490 void 491 wdstrategy(struct buf *bp) 492 { 493 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 494 struct disklabel *lp = wd->sc_dk.dk_label; 495 daddr_t blkno; 496 int s; 497 498 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 499 DEBUG_XFERS); 500 501 /* Valid request? */ 502 if (bp->b_blkno < 0 || 503 (bp->b_bcount % lp->d_secsize) != 0 || 504 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 505 bp->b_error = EINVAL; 506 goto bad; 507 } 508 509 /* If device invalidated (e.g. media change, door open), error. */ 510 if ((wd->sc_flags & WDF_LOADED) == 0) { 511 bp->b_error = EIO; 512 goto bad; 513 } 514 515 /* If it's a null transfer, return immediately. */ 516 if (bp->b_bcount == 0) 517 goto done; 518 519 /* 520 * Do bounds checking, adjust transfer. if error, process. 521 * If end of partition, just return. 522 */ 523 if (WDPART(bp->b_dev) == RAW_PART) { 524 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 525 wd->sc_capacity) <= 0) 526 goto done; 527 } else { 528 if (bounds_check_with_label(&wd->sc_dk, bp, 529 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 530 goto done; 531 } 532 533 /* 534 * Now convert the block number to absolute and put it in 535 * terms of the device's logical block size. 536 */ 537 if (lp->d_secsize >= DEV_BSIZE) 538 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 539 else 540 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 541 542 if (WDPART(bp->b_dev) != RAW_PART) 543 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 544 545 bp->b_rawblkno = blkno; 546 547 #ifdef WD_SOFTBADSECT 548 /* 549 * If the transfer about to be attempted contains only a block that 550 * is known to be bad then return an error for the transfer without 551 * even attempting to start a transfer up under the premis that we 552 * will just end up doing more retries for a transfer that will end 553 * up failing again. 554 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 555 */ 556 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 557 struct disk_badsectors *dbs; 558 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 559 560 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 561 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 562 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 563 bp->b_error = EIO; 564 goto bad; 565 } 566 } 567 #endif 568 569 /* Queue transfer on drive, activate drive and controller if idle. */ 570 s = splbio(); 571 BUFQ_PUT(&wd->sc_q, bp); 572 wdstart(wd); 573 splx(s); 574 return; 575 bad: 576 bp->b_flags |= B_ERROR; 577 done: 578 /* Toss transfer; we're done early. */ 579 bp->b_resid = bp->b_bcount; 580 biodone(bp); 581 } 582 583 /* 584 * Queue a drive for I/O. 585 */ 586 void 587 wdstart(void *arg) 588 { 589 struct wd_softc *wd = arg; 590 struct buf *bp = NULL; 591 592 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 593 DEBUG_XFERS); 594 while (wd->openings > 0) { 595 596 /* Is there a buf for us ? */ 597 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 598 return; 599 600 /* 601 * Make the command. First lock the device 602 */ 603 wd->openings--; 604 605 wd->retries = 0; 606 __wdstart(wd, bp); 607 } 608 } 609 610 static void 611 wd_split_mod15_write(struct buf *bp) 612 { 613 struct buf *obp = bp->b_private; 614 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 615 616 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 617 /* 618 * Propagate the error. If this was the first half of 619 * the original transfer, make sure to account for that 620 * in the residual. 621 */ 622 if (bp->b_data == obp->b_data) 623 bp->b_resid += bp->b_bcount; 624 goto done; 625 } 626 627 /* 628 * If this was the second half of the transfer, we're all done! 629 */ 630 if (bp->b_data != obp->b_data) 631 goto done; 632 633 /* 634 * Advance the pointer to the second half and issue that command 635 * using the same opening. 636 */ 637 bp->b_flags = obp->b_flags | B_CALL; 638 bp->b_data += bp->b_bcount; 639 bp->b_blkno += (bp->b_bcount / 512); 640 bp->b_rawblkno += (bp->b_bcount / 512); 641 __wdstart(sc, bp); 642 return; 643 644 done: 645 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 646 obp->b_error = bp->b_error; 647 obp->b_resid = bp->b_resid; 648 pool_put(&bufpool, bp); 649 biodone(obp); 650 sc->openings++; 651 /* wddone() will call wdstart() */ 652 } 653 654 void 655 __wdstart(struct wd_softc *wd, struct buf *bp) 656 { 657 658 /* 659 * Deal with the "split mod15 write" quirk. We just divide the 660 * transfer in two, doing the first half and then then second half 661 * with the same command opening. 662 * 663 * Note we MUST do this here, because we can't let insertion 664 * into the bufq cause the transfers to be re-merged. 665 */ 666 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 667 (bp->b_flags & B_READ) == 0 && 668 bp->b_bcount > 512 && 669 ((bp->b_bcount / 512) % 15) == 1)) { 670 struct buf *nbp; 671 672 /* already at splbio */ 673 nbp = pool_get(&bufpool, PR_NOWAIT); 674 if (__predict_false(nbp == NULL)) { 675 /* No memory -- fail the iop. */ 676 bp->b_error = ENOMEM; 677 bp->b_flags |= B_ERROR; 678 bp->b_resid = bp->b_bcount; 679 biodone(bp); 680 wd->openings++; 681 return; 682 } 683 684 BUF_INIT(nbp); 685 nbp->b_error = 0; 686 nbp->b_proc = bp->b_proc; 687 nbp->b_vp = NULLVP; 688 nbp->b_dev = bp->b_dev; 689 690 nbp->b_bcount = bp->b_bcount / 2; 691 nbp->b_bufsize = bp->b_bcount / 2; 692 nbp->b_data = bp->b_data; 693 694 nbp->b_blkno = bp->b_blkno; 695 nbp->b_rawblkno = bp->b_rawblkno; 696 697 nbp->b_flags = bp->b_flags | B_CALL; 698 nbp->b_iodone = wd_split_mod15_write; 699 700 /* Put ptr to orig buf in b_private and use new buf */ 701 nbp->b_private = bp; 702 703 BIO_COPYPRIO(nbp, bp); 704 705 bp = nbp; 706 } 707 708 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 709 wd->sc_wdc_bio.blkdone =0; 710 wd->sc_bp = bp; 711 /* 712 * If we're retrying, retry in single-sector mode. This will give us 713 * the sector number of the problem, and will eventually allow the 714 * transfer to succeed. 715 */ 716 if (wd->retries >= WDIORETRIES_SINGLE) 717 wd->sc_wdc_bio.flags = ATA_SINGLE; 718 else 719 wd->sc_wdc_bio.flags = 0; 720 if (wd->sc_flags & WDF_LBA48 && 721 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 722 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 723 wd->sc_wdc_bio.flags |= ATA_LBA48; 724 if (wd->sc_flags & WDF_LBA) 725 wd->sc_wdc_bio.flags |= ATA_LBA; 726 if (bp->b_flags & B_READ) 727 wd->sc_wdc_bio.flags |= ATA_READ; 728 wd->sc_wdc_bio.bcount = bp->b_bcount; 729 wd->sc_wdc_bio.databuf = bp->b_data; 730 /* Instrumentation. */ 731 disk_busy(&wd->sc_dk); 732 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 733 case ATACMD_TRY_AGAIN: 734 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 735 break; 736 case ATACMD_QUEUED: 737 case ATACMD_COMPLETE: 738 break; 739 default: 740 panic("__wdstart: bad return code from ata_bio()"); 741 } 742 } 743 744 void 745 wddone(void *v) 746 { 747 struct wd_softc *wd = v; 748 struct buf *bp = wd->sc_bp; 749 const char *errmsg; 750 int do_perror = 0; 751 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 752 DEBUG_XFERS); 753 754 if (bp == NULL) 755 return; 756 bp->b_resid = wd->sc_wdc_bio.bcount; 757 switch (wd->sc_wdc_bio.error) { 758 case ERR_DMA: 759 errmsg = "DMA error"; 760 goto retry; 761 case ERR_DF: 762 errmsg = "device fault"; 763 goto retry; 764 case TIMEOUT: 765 errmsg = "device timeout"; 766 goto retry; 767 case ERR_RESET: 768 errmsg = "channel reset"; 769 goto retry2; 770 case ERROR: 771 /* Don't care about media change bits */ 772 if (wd->sc_wdc_bio.r_error != 0 && 773 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 774 goto noerror; 775 errmsg = "error"; 776 do_perror = 1; 777 retry: /* Just reset and retry. Can we do more ? */ 778 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 779 retry2: 780 diskerr(bp, "wd", errmsg, LOG_PRINTF, 781 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 782 if (wd->retries < WDIORETRIES) 783 printf(", retrying\n"); 784 if (do_perror) 785 wdperror(wd); 786 if (wd->retries < WDIORETRIES) { 787 wd->retries++; 788 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 789 wdrestart, wd); 790 return; 791 } 792 printf("\n"); 793 794 #ifdef WD_SOFTBADSECT 795 /* 796 * Not all errors indicate a failed block but those that do, 797 * put the block on the bad-block list for the device. Only 798 * do this for reads because the drive should do it for writes, 799 * itself, according to Manuel. 800 */ 801 if ((bp->b_flags & B_READ) && 802 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 803 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 804 struct disk_badsectors *dbs; 805 806 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 807 dbs->dbs_min = bp->b_rawblkno; 808 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 809 microtime(&dbs->dbs_failedat); 810 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 811 wd->sc_bscount++; 812 } 813 #endif 814 bp->b_flags |= B_ERROR; 815 bp->b_error = EIO; 816 break; 817 case NOERROR: 818 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 819 printf("%s: soft error (corrected)\n", 820 wd->sc_dev.dv_xname); 821 break; 822 case ERR_NODEV: 823 bp->b_flags |= B_ERROR; 824 bp->b_error = EIO; 825 break; 826 } 827 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 828 (bp->b_flags & B_READ)); 829 #if NRND > 0 830 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 831 #endif 832 /* XXX Yuck, but we don't want to increment openings in this case */ 833 if (__predict_false((bp->b_flags & B_CALL) != 0 && 834 bp->b_iodone == wd_split_mod15_write)) 835 biodone(bp); 836 else { 837 biodone(bp); 838 wd->openings++; 839 } 840 wdstart(wd); 841 } 842 843 void 844 wdrestart(void *v) 845 { 846 struct wd_softc *wd = v; 847 struct buf *bp = wd->sc_bp; 848 int s; 849 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 850 DEBUG_XFERS); 851 852 s = splbio(); 853 __wdstart(v, bp); 854 splx(s); 855 } 856 857 int 858 wdread(dev_t dev, struct uio *uio, int flags) 859 { 860 861 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 862 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 863 } 864 865 int 866 wdwrite(dev_t dev, struct uio *uio, int flags) 867 { 868 869 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 870 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 871 } 872 873 int 874 wdopen(dev_t dev, int flag, int fmt, struct proc *p) 875 { 876 struct wd_softc *wd; 877 int part, error; 878 879 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 880 wd = device_lookup(&wd_cd, WDUNIT(dev)); 881 if (wd == NULL) 882 return (ENXIO); 883 884 if ((wd->sc_dev.dv_flags & DVF_ACTIVE) == 0) 885 return (ENODEV); 886 887 part = WDPART(dev); 888 889 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0) 890 return (error); 891 892 /* 893 * If there are wedges, and this is not RAW_PART, then we 894 * need to fail. 895 */ 896 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 897 error = EBUSY; 898 goto bad1; 899 } 900 901 /* 902 * If this is the first open of this device, add a reference 903 * to the adapter. 904 */ 905 if (wd->sc_dk.dk_openmask == 0 && 906 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 907 goto bad1; 908 909 if (wd->sc_dk.dk_openmask != 0) { 910 /* 911 * If any partition is open, but the disk has been invalidated, 912 * disallow further opens. 913 */ 914 if ((wd->sc_flags & WDF_LOADED) == 0) { 915 error = EIO; 916 goto bad2; 917 } 918 } else { 919 if ((wd->sc_flags & WDF_LOADED) == 0) { 920 wd->sc_flags |= WDF_LOADED; 921 922 /* Load the physical device parameters. */ 923 wd_get_params(wd, AT_WAIT, &wd->sc_params); 924 925 /* Load the partition info if not already loaded. */ 926 wdgetdisklabel(wd); 927 } 928 } 929 930 /* Check that the partition exists. */ 931 if (part != RAW_PART && 932 (part >= wd->sc_dk.dk_label->d_npartitions || 933 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 934 error = ENXIO; 935 goto bad2; 936 } 937 938 /* Insure only one open at a time. */ 939 switch (fmt) { 940 case S_IFCHR: 941 wd->sc_dk.dk_copenmask |= (1 << part); 942 break; 943 case S_IFBLK: 944 wd->sc_dk.dk_bopenmask |= (1 << part); 945 break; 946 } 947 wd->sc_dk.dk_openmask = 948 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 949 950 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 951 return 0; 952 953 bad2: 954 if (wd->sc_dk.dk_openmask == 0) 955 wd->atabus->ata_delref(wd->drvp); 956 bad1: 957 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 958 return error; 959 } 960 961 int 962 wdclose(dev_t dev, int flag, int fmt, struct proc *p) 963 { 964 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 965 int part = WDPART(dev); 966 int error; 967 968 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 969 970 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0) 971 return error; 972 973 switch (fmt) { 974 case S_IFCHR: 975 wd->sc_dk.dk_copenmask &= ~(1 << part); 976 break; 977 case S_IFBLK: 978 wd->sc_dk.dk_bopenmask &= ~(1 << part); 979 break; 980 } 981 wd->sc_dk.dk_openmask = 982 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 983 984 if (wd->sc_dk.dk_openmask == 0) { 985 wd_flushcache(wd, AT_WAIT); 986 987 if (! (wd->sc_flags & WDF_KLABEL)) 988 wd->sc_flags &= ~WDF_LOADED; 989 990 wd->atabus->ata_delref(wd->drvp); 991 } 992 993 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 994 return 0; 995 } 996 997 void 998 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 999 { 1000 1001 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1002 memset(lp, 0, sizeof(struct disklabel)); 1003 1004 lp->d_secsize = DEV_BSIZE; 1005 lp->d_ntracks = wd->sc_params.atap_heads; 1006 lp->d_nsectors = wd->sc_params.atap_sectors; 1007 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1008 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1009 wd->sc_params.atap_cylinders; 1010 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1011 1012 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1013 lp->d_type = DTYPE_ST506; 1014 else 1015 lp->d_type = DTYPE_ESDI; 1016 1017 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1018 strncpy(lp->d_packname, "fictitious", 16); 1019 if (wd->sc_capacity > UINT32_MAX) 1020 lp->d_secperunit = UINT32_MAX; 1021 else 1022 lp->d_secperunit = wd->sc_capacity; 1023 lp->d_rpm = 3600; 1024 lp->d_interleave = 1; 1025 lp->d_flags = 0; 1026 1027 lp->d_partitions[RAW_PART].p_offset = 0; 1028 lp->d_partitions[RAW_PART].p_size = 1029 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1030 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1031 lp->d_npartitions = RAW_PART + 1; 1032 1033 lp->d_magic = DISKMAGIC; 1034 lp->d_magic2 = DISKMAGIC; 1035 lp->d_checksum = dkcksum(lp); 1036 } 1037 1038 /* 1039 * Fabricate a default disk label, and try to read the correct one. 1040 */ 1041 void 1042 wdgetdisklabel(struct wd_softc *wd) 1043 { 1044 struct disklabel *lp = wd->sc_dk.dk_label; 1045 const char *errstring; 1046 int s; 1047 1048 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1049 1050 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1051 1052 wdgetdefaultlabel(wd, lp); 1053 1054 wd->sc_badsect[0] = -1; 1055 1056 if (wd->drvp->state > RESET) { 1057 s = splbio(); 1058 wd->drvp->drive_flags |= DRIVE_RESET; 1059 splx(s); 1060 } 1061 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1062 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1063 if (errstring) { 1064 /* 1065 * This probably happened because the drive's default 1066 * geometry doesn't match the DOS geometry. We 1067 * assume the DOS geometry is now in the label and try 1068 * again. XXX This is a kluge. 1069 */ 1070 if (wd->drvp->state > RESET) { 1071 s = splbio(); 1072 wd->drvp->drive_flags |= DRIVE_RESET; 1073 splx(s); 1074 } 1075 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1076 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1077 } 1078 if (errstring) { 1079 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1080 return; 1081 } 1082 1083 if (wd->drvp->state > RESET) { 1084 s = splbio(); 1085 wd->drvp->drive_flags |= DRIVE_RESET; 1086 splx(s); 1087 } 1088 #ifdef HAS_BAD144_HANDLING 1089 if ((lp->d_flags & D_BADSECT) != 0) 1090 bad144intern(wd); 1091 #endif 1092 } 1093 1094 void 1095 wdperror(const struct wd_softc *wd) 1096 { 1097 static const char *const errstr0_3[] = {"address mark not found", 1098 "track 0 not found", "aborted command", "media change requested", 1099 "id not found", "media changed", "uncorrectable data error", 1100 "bad block detected"}; 1101 static const char *const errstr4_5[] = { 1102 "obsolete (address mark not found)", 1103 "no media/write protected", "aborted command", 1104 "media change requested", "id not found", "media changed", 1105 "uncorrectable data error", "interface CRC error"}; 1106 const char *const *errstr; 1107 int i; 1108 char *sep = ""; 1109 1110 const char *devname = wd->sc_dev.dv_xname; 1111 struct ata_drive_datas *drvp = wd->drvp; 1112 int errno = wd->sc_wdc_bio.r_error; 1113 1114 if (drvp->ata_vers >= 4) 1115 errstr = errstr4_5; 1116 else 1117 errstr = errstr0_3; 1118 1119 printf("%s: (", devname); 1120 1121 if (errno == 0) 1122 printf("error not notified"); 1123 1124 for (i = 0; i < 8; i++) { 1125 if (errno & (1 << i)) { 1126 printf("%s%s", sep, errstr[i]); 1127 sep = ", "; 1128 } 1129 } 1130 printf(")\n"); 1131 } 1132 1133 int 1134 wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct proc *p) 1135 { 1136 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1137 int error = 0, s; 1138 #ifdef __HAVE_OLD_DISKLABEL 1139 struct disklabel *newlabel = NULL; 1140 #endif 1141 1142 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1143 1144 if ((wd->sc_flags & WDF_LOADED) == 0) 1145 return EIO; 1146 1147 switch (xfer) { 1148 #ifdef HAS_BAD144_HANDLING 1149 case DIOCSBAD: 1150 if ((flag & FWRITE) == 0) 1151 return EBADF; 1152 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1153 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1154 bad144intern(wd); 1155 return 0; 1156 #endif 1157 #ifdef WD_SOFTBADSECT 1158 case DIOCBSLIST : 1159 { 1160 u_int32_t count, missing, skip; 1161 struct disk_badsecinfo dbsi; 1162 struct disk_badsectors *dbs; 1163 size_t available; 1164 caddr_t laddr; 1165 1166 dbsi = *(struct disk_badsecinfo *)addr; 1167 missing = wd->sc_bscount; 1168 count = 0; 1169 available = dbsi.dbsi_bufsize; 1170 skip = dbsi.dbsi_skip; 1171 laddr = dbsi.dbsi_buffer; 1172 1173 /* 1174 * We start this loop with the expectation that all of the 1175 * entries will be missed and decrement this counter each 1176 * time we either skip over one (already copied out) or 1177 * we actually copy it back to user space. The structs 1178 * holding the bad sector information are copied directly 1179 * back to user space whilst the summary is returned via 1180 * the struct passed in via the ioctl. 1181 */ 1182 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1183 if (skip > 0) { 1184 missing--; 1185 skip--; 1186 continue; 1187 } 1188 if (available < sizeof(*dbs)) 1189 break; 1190 available -= sizeof(*dbs); 1191 copyout(dbs, laddr, sizeof(*dbs)); 1192 laddr += sizeof(*dbs); 1193 missing--; 1194 count++; 1195 } 1196 dbsi.dbsi_left = missing; 1197 dbsi.dbsi_copied = count; 1198 *(struct disk_badsecinfo *)addr = dbsi; 1199 return 0; 1200 } 1201 1202 case DIOCBSFLUSH : 1203 /* Clean out the bad sector list */ 1204 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1205 void *head = SLIST_FIRST(&wd->sc_bslist); 1206 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1207 free(head, M_TEMP); 1208 } 1209 wd->sc_bscount = 0; 1210 return 0; 1211 #endif 1212 case DIOCGDINFO: 1213 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1214 return 0; 1215 #ifdef __HAVE_OLD_DISKLABEL 1216 case ODIOCGDINFO: 1217 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1218 if (newlabel == NULL) 1219 return EIO; 1220 *newlabel = *(wd->sc_dk.dk_label); 1221 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1222 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1223 else 1224 error = ENOTTY; 1225 free(newlabel, M_TEMP); 1226 return error; 1227 #endif 1228 1229 case DIOCGPART: 1230 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1231 ((struct partinfo *)addr)->part = 1232 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1233 return 0; 1234 1235 case DIOCWDINFO: 1236 case DIOCSDINFO: 1237 #ifdef __HAVE_OLD_DISKLABEL 1238 case ODIOCWDINFO: 1239 case ODIOCSDINFO: 1240 #endif 1241 { 1242 struct disklabel *lp; 1243 1244 if ((flag & FWRITE) == 0) 1245 return EBADF; 1246 1247 #ifdef __HAVE_OLD_DISKLABEL 1248 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1249 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1250 if (newlabel == NULL) 1251 return EIO; 1252 memset(newlabel, 0, sizeof newlabel); 1253 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1254 lp = newlabel; 1255 } else 1256 #endif 1257 lp = (struct disklabel *)addr; 1258 1259 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, 1260 NULL)) != 0) 1261 goto bad; 1262 wd->sc_flags |= WDF_LABELLING; 1263 1264 error = setdisklabel(wd->sc_dk.dk_label, 1265 lp, /*wd->sc_dk.dk_openmask : */0, 1266 wd->sc_dk.dk_cpulabel); 1267 if (error == 0) { 1268 if (wd->drvp->state > RESET) { 1269 s = splbio(); 1270 wd->drvp->drive_flags |= DRIVE_RESET; 1271 splx(s); 1272 } 1273 if (xfer == DIOCWDINFO 1274 #ifdef __HAVE_OLD_DISKLABEL 1275 || xfer == ODIOCWDINFO 1276 #endif 1277 ) 1278 error = writedisklabel(WDLABELDEV(dev), 1279 wdstrategy, wd->sc_dk.dk_label, 1280 wd->sc_dk.dk_cpulabel); 1281 } 1282 1283 wd->sc_flags &= ~WDF_LABELLING; 1284 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 1285 bad: 1286 #ifdef __HAVE_OLD_DISKLABEL 1287 if (newlabel != NULL) 1288 free(newlabel, M_TEMP); 1289 #endif 1290 return error; 1291 } 1292 1293 case DIOCKLABEL: 1294 if (*(int *)addr) 1295 wd->sc_flags |= WDF_KLABEL; 1296 else 1297 wd->sc_flags &= ~WDF_KLABEL; 1298 return 0; 1299 1300 case DIOCWLABEL: 1301 if ((flag & FWRITE) == 0) 1302 return EBADF; 1303 if (*(int *)addr) 1304 wd->sc_flags |= WDF_WLABEL; 1305 else 1306 wd->sc_flags &= ~WDF_WLABEL; 1307 return 0; 1308 1309 case DIOCGDEFLABEL: 1310 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1311 return 0; 1312 #ifdef __HAVE_OLD_DISKLABEL 1313 case ODIOCGDEFLABEL: 1314 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1315 if (newlabel == NULL) 1316 return EIO; 1317 wdgetdefaultlabel(wd, newlabel); 1318 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1319 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1320 else 1321 error = ENOTTY; 1322 free(newlabel, M_TEMP); 1323 return error; 1324 #endif 1325 1326 #ifdef notyet 1327 case DIOCWFORMAT: 1328 if ((flag & FWRITE) == 0) 1329 return EBADF; 1330 { 1331 register struct format_op *fop; 1332 struct iovec aiov; 1333 struct uio auio; 1334 1335 fop = (struct format_op *)addr; 1336 aiov.iov_base = fop->df_buf; 1337 aiov.iov_len = fop->df_count; 1338 auio.uio_iov = &aiov; 1339 auio.uio_iovcnt = 1; 1340 auio.uio_resid = fop->df_count; 1341 auio.uio_segflg = 0; 1342 auio.uio_offset = 1343 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1344 auio.uio_procp = p; 1345 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1346 &auio); 1347 fop->df_count -= auio.uio_resid; 1348 fop->df_reg[0] = wdc->sc_status; 1349 fop->df_reg[1] = wdc->sc_error; 1350 return error; 1351 } 1352 #endif 1353 case DIOCGCACHE: 1354 return wd_getcache(wd, (int *)addr); 1355 1356 case DIOCSCACHE: 1357 return wd_setcache(wd, *(int *)addr); 1358 1359 case DIOCCACHESYNC: 1360 return wd_flushcache(wd, AT_WAIT); 1361 1362 case ATAIOCCOMMAND: 1363 /* 1364 * Make sure this command is (relatively) safe first 1365 */ 1366 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1367 (flag & FWRITE) == 0) 1368 return (EBADF); 1369 { 1370 struct wd_ioctl *wi; 1371 atareq_t *atareq = (atareq_t *) addr; 1372 int error; 1373 1374 wi = wi_get(); 1375 wi->wi_softc = wd; 1376 wi->wi_atareq = *atareq; 1377 1378 if (atareq->datalen && atareq->flags & 1379 (ATACMD_READ | ATACMD_WRITE)) { 1380 wi->wi_iov.iov_base = atareq->databuf; 1381 wi->wi_iov.iov_len = atareq->datalen; 1382 wi->wi_uio.uio_iov = &wi->wi_iov; 1383 wi->wi_uio.uio_iovcnt = 1; 1384 wi->wi_uio.uio_resid = atareq->datalen; 1385 wi->wi_uio.uio_offset = 0; 1386 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1387 wi->wi_uio.uio_rw = 1388 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1389 wi->wi_uio.uio_procp = p; 1390 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1391 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1392 minphys, &wi->wi_uio); 1393 } else { 1394 /* No need to call physio if we don't have any 1395 user data */ 1396 wi->wi_bp.b_flags = 0; 1397 wi->wi_bp.b_data = 0; 1398 wi->wi_bp.b_bcount = 0; 1399 wi->wi_bp.b_dev = 0; 1400 wi->wi_bp.b_proc = p; 1401 wdioctlstrategy(&wi->wi_bp); 1402 error = wi->wi_bp.b_error; 1403 } 1404 *atareq = wi->wi_atareq; 1405 wi_free(wi); 1406 return(error); 1407 } 1408 1409 case DIOCAWEDGE: 1410 { 1411 struct dkwedge_info *dkw = (void *) addr; 1412 1413 if ((flag & FWRITE) == 0) 1414 return (EBADF); 1415 1416 /* If the ioctl happens here, the parent is us. */ 1417 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1418 return (dkwedge_add(dkw)); 1419 } 1420 1421 case DIOCDWEDGE: 1422 { 1423 struct dkwedge_info *dkw = (void *) addr; 1424 1425 if ((flag & FWRITE) == 0) 1426 return (EBADF); 1427 1428 /* If the ioctl happens here, the parent is us. */ 1429 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1430 return (dkwedge_del(dkw)); 1431 } 1432 1433 case DIOCLWEDGES: 1434 { 1435 struct dkwedge_list *dkwl = (void *) addr; 1436 1437 return (dkwedge_list(&wd->sc_dk, dkwl, p)); 1438 } 1439 1440 default: 1441 return ENOTTY; 1442 } 1443 1444 #ifdef DIAGNOSTIC 1445 panic("wdioctl: impossible"); 1446 #endif 1447 } 1448 1449 #ifdef B_FORMAT 1450 int 1451 wdformat(struct buf *bp) 1452 { 1453 1454 bp->b_flags |= B_FORMAT; 1455 return wdstrategy(bp); 1456 } 1457 #endif 1458 1459 int 1460 wdsize(dev_t dev) 1461 { 1462 struct wd_softc *wd; 1463 int part, omask; 1464 int size; 1465 1466 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1467 1468 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1469 if (wd == NULL) 1470 return (-1); 1471 1472 part = WDPART(dev); 1473 omask = wd->sc_dk.dk_openmask & (1 << part); 1474 1475 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1476 return (-1); 1477 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1478 size = -1; 1479 else 1480 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1481 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1482 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1483 return (-1); 1484 return (size); 1485 } 1486 1487 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1488 static int wddoingadump = 0; 1489 static int wddumprecalibrated = 0; 1490 static int wddumpmulti = 1; 1491 1492 /* 1493 * Dump core after a system crash. 1494 */ 1495 int 1496 wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1497 { 1498 struct wd_softc *wd; /* disk unit to do the I/O */ 1499 struct disklabel *lp; /* disk's disklabel */ 1500 int part, err; 1501 int nblks; /* total number of sectors left to write */ 1502 1503 /* Check if recursive dump; if so, punt. */ 1504 if (wddoingadump) 1505 return EFAULT; 1506 wddoingadump = 1; 1507 1508 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1509 if (wd == NULL) 1510 return (ENXIO); 1511 1512 part = WDPART(dev); 1513 1514 /* Convert to disk sectors. Request must be a multiple of size. */ 1515 lp = wd->sc_dk.dk_label; 1516 if ((size % lp->d_secsize) != 0) 1517 return EFAULT; 1518 nblks = size / lp->d_secsize; 1519 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1520 1521 /* Check transfer bounds against partition size. */ 1522 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1523 return EINVAL; 1524 1525 /* Offset block number to start of partition. */ 1526 blkno += lp->d_partitions[part].p_offset; 1527 1528 /* Recalibrate, if first dump transfer. */ 1529 if (wddumprecalibrated == 0) { 1530 wddumpmulti = wd->sc_multi; 1531 wddumprecalibrated = 1; 1532 (*wd->atabus->ata_reset_drive)(wd->drvp, 1533 AT_POLL | AT_RST_EMERG); 1534 wd->drvp->state = RESET; 1535 } 1536 1537 while (nblks > 0) { 1538 wd->sc_bp = NULL; 1539 wd->sc_wdc_bio.blkno = blkno; 1540 wd->sc_wdc_bio.flags = ATA_POLL; 1541 if (wd->sc_flags & WDF_LBA48 && 1542 (blkno > LBA48_THRESHOLD || 1543 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1544 wd->sc_wdc_bio.flags |= ATA_LBA48; 1545 if (wd->sc_flags & WDF_LBA) 1546 wd->sc_wdc_bio.flags |= ATA_LBA; 1547 wd->sc_wdc_bio.bcount = 1548 min(nblks, wddumpmulti) * lp->d_secsize; 1549 wd->sc_wdc_bio.databuf = va; 1550 #ifndef WD_DUMP_NOT_TRUSTED 1551 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1552 case ATACMD_TRY_AGAIN: 1553 panic("wddump: try again"); 1554 break; 1555 case ATACMD_QUEUED: 1556 panic("wddump: polled command has been queued"); 1557 break; 1558 case ATACMD_COMPLETE: 1559 break; 1560 } 1561 switch(wd->sc_wdc_bio.error) { 1562 case TIMEOUT: 1563 printf("wddump: device timed out"); 1564 err = EIO; 1565 break; 1566 case ERR_DF: 1567 printf("wddump: drive fault"); 1568 err = EIO; 1569 break; 1570 case ERR_DMA: 1571 printf("wddump: DMA error"); 1572 err = EIO; 1573 break; 1574 case ERROR: 1575 printf("wddump: "); 1576 wdperror(wd); 1577 err = EIO; 1578 break; 1579 case NOERROR: 1580 err = 0; 1581 break; 1582 default: 1583 panic("wddump: unknown error type"); 1584 } 1585 if (err != 0) { 1586 printf("\n"); 1587 return err; 1588 } 1589 #else /* WD_DUMP_NOT_TRUSTED */ 1590 /* Let's just talk about this first... */ 1591 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1592 unit, va, cylin, head, sector); 1593 delay(500 * 1000); /* half a second */ 1594 #endif 1595 1596 /* update block count */ 1597 nblks -= min(nblks, wddumpmulti); 1598 blkno += min(nblks, wddumpmulti); 1599 va += min(nblks, wddumpmulti) * lp->d_secsize; 1600 } 1601 1602 wddoingadump = 0; 1603 return 0; 1604 } 1605 1606 #ifdef HAS_BAD144_HANDLING 1607 /* 1608 * Internalize the bad sector table. 1609 */ 1610 void 1611 bad144intern(struct wd_softc *wd) 1612 { 1613 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1614 struct disklabel *lp = wd->sc_dk.dk_label; 1615 int i = 0; 1616 1617 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1618 1619 for (; i < NBT_BAD; i++) { 1620 if (bt->bt_bad[i].bt_cyl == 0xffff) 1621 break; 1622 wd->sc_badsect[i] = 1623 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1624 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1625 (bt->bt_bad[i].bt_trksec & 0xff); 1626 } 1627 for (; i < NBT_BAD+1; i++) 1628 wd->sc_badsect[i] = -1; 1629 } 1630 #endif 1631 1632 int 1633 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1634 { 1635 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1636 case CMD_AGAIN: 1637 return 1; 1638 case CMD_ERR: 1639 /* 1640 * We `know' there's a drive here; just assume it's old. 1641 * This geometry is only used to read the MBR and print a 1642 * (false) attach message. 1643 */ 1644 strncpy(params->atap_model, "ST506", 1645 sizeof params->atap_model); 1646 params->atap_config = ATA_CFG_FIXED; 1647 params->atap_cylinders = 1024; 1648 params->atap_heads = 8; 1649 params->atap_sectors = 17; 1650 params->atap_multi = 1; 1651 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1652 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1653 return 0; 1654 case CMD_OK: 1655 return 0; 1656 default: 1657 panic("wd_get_params: bad return code from ata_get_params"); 1658 /* NOTREACHED */ 1659 } 1660 } 1661 1662 int 1663 wd_getcache(struct wd_softc *wd, int *bitsp) 1664 { 1665 struct ataparams params; 1666 1667 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1668 return EIO; 1669 if (params.atap_cmd_set1 == 0x0000 || 1670 params.atap_cmd_set1 == 0xffff || 1671 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1672 *bitsp = 0; 1673 return 0; 1674 } 1675 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1676 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1677 *bitsp |= DKCACHE_WRITE; 1678 1679 return 0; 1680 } 1681 1682 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1683 1684 int 1685 wd_setcache(struct wd_softc *wd, int bits) 1686 { 1687 struct ataparams params; 1688 struct ata_command ata_c; 1689 1690 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1691 return EIO; 1692 1693 if (params.atap_cmd_set1 == 0x0000 || 1694 params.atap_cmd_set1 == 0xffff || 1695 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1696 return EOPNOTSUPP; 1697 1698 if ((bits & DKCACHE_READ) == 0 || 1699 (bits & DKCACHE_SAVE) != 0) 1700 return EOPNOTSUPP; 1701 1702 memset(&ata_c, 0, sizeof(struct ata_command)); 1703 ata_c.r_command = SET_FEATURES; 1704 ata_c.r_st_bmask = 0; 1705 ata_c.r_st_pmask = 0; 1706 ata_c.timeout = 30000; /* 30s timeout */ 1707 ata_c.flags = AT_WAIT; 1708 if (bits & DKCACHE_WRITE) 1709 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1710 else 1711 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1712 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1713 printf("%s: wd_setcache command not complete\n", 1714 wd->sc_dev.dv_xname); 1715 return EIO; 1716 } 1717 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1718 char sbuf[sizeof(at_errbits) + 64]; 1719 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1720 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1721 sbuf); 1722 return EIO; 1723 } 1724 return 0; 1725 } 1726 1727 int 1728 wd_standby(struct wd_softc *wd, int flags) 1729 { 1730 struct ata_command ata_c; 1731 1732 memset(&ata_c, 0, sizeof(struct ata_command)); 1733 ata_c.r_command = WDCC_STANDBY_IMMED; 1734 ata_c.r_st_bmask = WDCS_DRDY; 1735 ata_c.r_st_pmask = WDCS_DRDY; 1736 ata_c.flags = flags; 1737 ata_c.timeout = 30000; /* 30s timeout */ 1738 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1739 printf("%s: standby immediate command didn't complete\n", 1740 wd->sc_dev.dv_xname); 1741 return EIO; 1742 } 1743 if (ata_c.flags & AT_ERROR) { 1744 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1745 return ENODEV; 1746 } 1747 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1748 char sbuf[sizeof(at_errbits) + 64]; 1749 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1750 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1751 sbuf); 1752 return EIO; 1753 } 1754 return 0; 1755 } 1756 1757 int 1758 wd_flushcache(struct wd_softc *wd, int flags) 1759 { 1760 struct ata_command ata_c; 1761 1762 if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */ 1763 return ENODEV; 1764 memset(&ata_c, 0, sizeof(struct ata_command)); 1765 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1766 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1767 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1768 else 1769 ata_c.r_command = WDCC_FLUSHCACHE; 1770 ata_c.r_st_bmask = WDCS_DRDY; 1771 ata_c.r_st_pmask = WDCS_DRDY; 1772 ata_c.flags = flags; 1773 ata_c.timeout = 30000; /* 30s timeout */ 1774 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1775 printf("%s: flush cache command didn't complete\n", 1776 wd->sc_dev.dv_xname); 1777 return EIO; 1778 } 1779 if (ata_c.flags & AT_ERROR) { 1780 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1781 return ENODEV; 1782 } 1783 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1784 char sbuf[sizeof(at_errbits) + 64]; 1785 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1786 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1787 sbuf); 1788 return EIO; 1789 } 1790 return 0; 1791 } 1792 1793 void 1794 wd_shutdown(void *arg) 1795 { 1796 struct wd_softc *wd = arg; 1797 wd_flushcache(wd, AT_POLL); 1798 } 1799 1800 /* 1801 * Allocate space for a ioctl queue structure. Mostly taken from 1802 * scsipi_ioctl.c 1803 */ 1804 struct wd_ioctl * 1805 wi_get(void) 1806 { 1807 struct wd_ioctl *wi; 1808 int s; 1809 1810 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1811 simple_lock_init(&wi->wi_bp.b_interlock); 1812 s = splbio(); 1813 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1814 splx(s); 1815 return (wi); 1816 } 1817 1818 /* 1819 * Free an ioctl structure and remove it from our list 1820 */ 1821 1822 void 1823 wi_free(struct wd_ioctl *wi) 1824 { 1825 int s; 1826 1827 s = splbio(); 1828 LIST_REMOVE(wi, wi_list); 1829 splx(s); 1830 free(wi, M_TEMP); 1831 } 1832 1833 /* 1834 * Find a wd_ioctl structure based on the struct buf. 1835 */ 1836 1837 struct wd_ioctl * 1838 wi_find(struct buf *bp) 1839 { 1840 struct wd_ioctl *wi; 1841 int s; 1842 1843 s = splbio(); 1844 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1845 if (bp == &wi->wi_bp) 1846 break; 1847 splx(s); 1848 return (wi); 1849 } 1850 1851 /* 1852 * Ioctl pseudo strategy routine 1853 * 1854 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1855 * happens here is: 1856 * 1857 * - wdioctl() queues a wd_ioctl structure. 1858 * 1859 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1860 * user space I/O is required. If physio() is called, physio() eventually 1861 * calls wdioctlstrategy(). 1862 * 1863 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1864 * to perform the actual command 1865 * 1866 * The reason for the use of the pseudo strategy routine is because 1867 * when doing I/O to/from user space, physio _really_ wants to be in 1868 * the loop. We could put the entire buffer into the ioctl request 1869 * structure, but that won't scale if we want to do things like download 1870 * microcode. 1871 */ 1872 1873 void 1874 wdioctlstrategy(struct buf *bp) 1875 { 1876 struct wd_ioctl *wi; 1877 struct ata_command ata_c; 1878 int error = 0; 1879 1880 wi = wi_find(bp); 1881 if (wi == NULL) { 1882 printf("user_strat: No ioctl\n"); 1883 error = EINVAL; 1884 goto bad; 1885 } 1886 1887 memset(&ata_c, 0, sizeof(ata_c)); 1888 1889 /* 1890 * Abort if physio broke up the transfer 1891 */ 1892 1893 if (bp->b_bcount != wi->wi_atareq.datalen) { 1894 printf("physio split wd ioctl request... cannot proceed\n"); 1895 error = EIO; 1896 goto bad; 1897 } 1898 1899 /* 1900 * Abort if we didn't get a buffer size that was a multiple of 1901 * our sector size (or was larger than NBBY) 1902 */ 1903 1904 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1905 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1906 (1 << NBBY)) { 1907 error = EINVAL; 1908 goto bad; 1909 } 1910 1911 /* 1912 * Make sure a timeout was supplied in the ioctl request 1913 */ 1914 1915 if (wi->wi_atareq.timeout == 0) { 1916 error = EINVAL; 1917 goto bad; 1918 } 1919 1920 if (wi->wi_atareq.flags & ATACMD_READ) 1921 ata_c.flags |= AT_READ; 1922 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1923 ata_c.flags |= AT_WRITE; 1924 1925 if (wi->wi_atareq.flags & ATACMD_READREG) 1926 ata_c.flags |= AT_READREG; 1927 1928 ata_c.flags |= AT_WAIT; 1929 1930 ata_c.timeout = wi->wi_atareq.timeout; 1931 ata_c.r_command = wi->wi_atareq.command; 1932 ata_c.r_head = wi->wi_atareq.head & 0x0f; 1933 ata_c.r_cyl = wi->wi_atareq.cylinder; 1934 ata_c.r_sector = wi->wi_atareq.sec_num; 1935 ata_c.r_count = wi->wi_atareq.sec_count; 1936 ata_c.r_features = wi->wi_atareq.features; 1937 ata_c.r_st_bmask = WDCS_DRDY; 1938 ata_c.r_st_pmask = WDCS_DRDY; 1939 ata_c.data = wi->wi_bp.b_data; 1940 ata_c.bcount = wi->wi_bp.b_bcount; 1941 1942 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 1943 != ATACMD_COMPLETE) { 1944 wi->wi_atareq.retsts = ATACMD_ERROR; 1945 goto bad; 1946 } 1947 1948 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1949 if (ata_c.flags & AT_ERROR) { 1950 wi->wi_atareq.retsts = ATACMD_ERROR; 1951 wi->wi_atareq.error = ata_c.r_error; 1952 } else if (ata_c.flags & AT_DF) 1953 wi->wi_atareq.retsts = ATACMD_DF; 1954 else 1955 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1956 } else { 1957 wi->wi_atareq.retsts = ATACMD_OK; 1958 if (wi->wi_atareq.flags & ATACMD_READREG) { 1959 wi->wi_atareq.head = ata_c.r_head ; 1960 wi->wi_atareq.cylinder = ata_c.r_cyl; 1961 wi->wi_atareq.sec_num = ata_c.r_sector; 1962 wi->wi_atareq.sec_count = ata_c.r_count; 1963 wi->wi_atareq.features = ata_c.r_features; 1964 wi->wi_atareq.error = ata_c.r_error; 1965 } 1966 } 1967 1968 bp->b_error = 0; 1969 biodone(bp); 1970 return; 1971 bad: 1972 bp->b_flags |= B_ERROR; 1973 bp->b_error = error; 1974 biodone(bp); 1975 } 1976
Indexes created Sun Sep 28 07:09:56 GMT 2025