wd.c revision 1.274.2.8.2.2
1 /* $NetBSD: wd.c,v 1.274.2.8.2.2 2005/05/16 16:15:10 riz 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 1.274.2.8.2.2 2005/05/16 16:15:10 riz Exp $"); 70 71 #ifndef WDCDEBUG 72 #define WDCDEBUG 73 #endif /* WDCDEBUG */ 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 WDCDEBUG 126 int wdcdebug_wd_mask = 0x0; 127 #define WDCDEBUG_PRINT(args, level) \ 128 if (wdcdebug_wd_mask & (level)) \ 129 printf args 130 #else 131 #define WDCDEBUG_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_flushcache(struct wd_softc *, int); 192 void wd_shutdown(void *); 193 194 int wd_getcache(struct wd_softc *, int *); 195 int wd_setcache(struct wd_softc *, int); 196 197 struct dkdriver wddkdriver = { wdstrategy }; 198 199 #ifdef HAS_BAD144_HANDLING 200 static void bad144intern(struct wd_softc *); 201 #endif 202 203 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 204 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 205 206 /* 207 * Quirk table for IDE drives. Put more-specific matches first, since 208 * a simple globbing routine is used for matching. 209 */ 210 static const struct wd_quirk { 211 const char *wdq_match; /* inquiry pattern to match */ 212 int wdq_quirks; /* drive quirks */ 213 } wd_quirk_table[] = { 214 /* 215 * Some Seagate S-ATA drives have a PHY which can get confused 216 * with the way data is packetized by some S-ATA controllers. 217 * 218 * The work-around is to split in two any write transfer whose 219 * sector count % 15 == 1 (assuming 512 byte sectors). 220 * 221 * XXX This is an incomplete list. There are at least a couple 222 * XXX more model numbers. If you have trouble with such transfers 223 * XXX (8K is the most common) on Seagate S-ATA drives, please 224 * XXX notify thorpej (at) NetBSD.org. 225 */ 226 { "ST3120023AS", 227 WD_QUIRK_SPLIT_MOD15_WRITE }, 228 { "ST380023AS", 229 WD_QUIRK_SPLIT_MOD15_WRITE }, 230 231 /* 232 * This seagate drive seems to have issue addressing sector 0xfffffff 233 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 234 * LBA48 235 */ 236 { "ST3200822A", 237 WD_QUIRK_FORCE_LBA48 }, 238 { "ST3250823AS", 239 WD_QUIRK_FORCE_LBA48 }, 240 241 { NULL, 242 0 } 243 }; 244 245 static const struct wd_quirk * 246 wd_lookup_quirks(const char *name) 247 { 248 const struct wd_quirk *wdq; 249 const char *estr; 250 251 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 252 /* 253 * We only want exact matches (which include matches 254 * against globbing characters). 255 */ 256 if (pmatch(name, wdq->wdq_match, &estr) == 2) 257 return (wdq); 258 } 259 return (NULL); 260 } 261 262 int 263 wdprobe(struct device *parent, struct cfdata *match, void *aux) 264 { 265 struct ata_device *adev = aux; 266 267 if (adev == NULL) 268 return 0; 269 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 270 return 0; 271 272 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 273 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 274 return 0; 275 return 1; 276 } 277 278 void 279 wdattach(struct device *parent, struct device *self, void *aux) 280 { 281 struct wd_softc *wd = (void *)self; 282 struct ata_device *adev= aux; 283 int i, blank; 284 char buf[41], pbuf[9], c, *p, *q; 285 const struct wd_quirk *wdq; 286 WDCDEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 287 288 lockinit(&wd->sc_lock, PRIBIO | PCATCH, "wdlock", 0, 0); 289 290 callout_init(&wd->sc_restart_ch); 291 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT()|BUFQ_SORT_RAWBLOCK); 292 SLIST_INIT(&wd->sc_bslist); 293 294 wd->atabus = adev->adev_bustype; 295 wd->openings = adev->adev_openings; 296 wd->drvp = adev->adev_drv_data; 297 298 wd->drvp->drv_done = wddone; 299 wd->drvp->drv_softc = &wd->sc_dev; 300 301 aprint_naive("\n"); 302 303 /* read our drive info */ 304 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 305 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 306 return; 307 } 308 309 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 310 i < sizeof(wd->sc_params.atap_model); i++) { 311 c = *p++; 312 if (c == '\0') 313 break; 314 if (c != ' ') { 315 if (blank) { 316 *q++ = ' '; 317 blank = 0; 318 } 319 *q++ = c; 320 } else 321 blank = 1; 322 } 323 *q++ = '\0'; 324 325 aprint_normal(": <%s>\n", buf); 326 327 wdq = wd_lookup_quirks(buf); 328 if (wdq != NULL) 329 wd->sc_quirks = wdq->wdq_quirks; 330 331 if ((wd->sc_params.atap_multi & 0xff) > 1) { 332 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 333 } else { 334 wd->sc_multi = 1; 335 } 336 337 aprint_normal("%s: drive supports %d-sector PIO transfers,", 338 wd->sc_dev.dv_xname, wd->sc_multi); 339 340 /* 48-bit LBA addressing */ 341 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 342 wd->sc_flags |= WDF_LBA48; 343 344 /* Prior to ATA-4, LBA was optional. */ 345 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 346 wd->sc_flags |= WDF_LBA; 347 #if 0 348 /* ATA-4 requires LBA. */ 349 if (wd->sc_params.atap_ataversion != 0xffff && 350 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 351 wd->sc_flags |= WDF_LBA; 352 #endif 353 354 if ((wd->sc_flags & WDF_LBA48) != 0) { 355 aprint_normal(" LBA48 addressing\n"); 356 wd->sc_capacity = 357 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 358 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 359 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 360 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 361 } else if ((wd->sc_flags & WDF_LBA) != 0) { 362 aprint_normal(" LBA addressing\n"); 363 wd->sc_capacity = 364 (wd->sc_params.atap_capacity[1] << 16) | 365 wd->sc_params.atap_capacity[0]; 366 } else { 367 aprint_normal(" chs addressing\n"); 368 wd->sc_capacity = 369 wd->sc_params.atap_cylinders * 370 wd->sc_params.atap_heads * 371 wd->sc_params.atap_sectors; 372 } 373 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 374 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 375 "%d bytes/sect x %llu sectors\n", 376 self->dv_xname, pbuf, 377 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 378 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 379 wd->sc_params.atap_cylinders, 380 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 381 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 382 383 WDCDEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 384 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 385 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 386 /* 387 * Initialize and attach the disk structure. 388 */ 389 wd->sc_dk.dk_driver = &wddkdriver; 390 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 391 disk_attach(&wd->sc_dk); 392 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 393 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 394 if (wd->sc_sdhook == NULL) 395 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 396 wd->sc_dev.dv_xname); 397 #if NRND > 0 398 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 399 RND_TYPE_DISK, 0); 400 #endif 401 } 402 403 int 404 wdactivate(struct device *self, enum devact act) 405 { 406 int rv = 0; 407 408 switch (act) { 409 case DVACT_ACTIVATE: 410 rv = EOPNOTSUPP; 411 break; 412 413 case DVACT_DEACTIVATE: 414 /* 415 * Nothing to do; we key off the device's DVF_ACTIVATE. 416 */ 417 break; 418 } 419 return (rv); 420 } 421 422 int 423 wddetach(struct device *self, int flags) 424 { 425 struct wd_softc *sc = (struct wd_softc *)self; 426 struct buf *bp; 427 int s, bmaj, cmaj, i, mn; 428 429 /* locate the major number */ 430 bmaj = bdevsw_lookup_major(&wd_bdevsw); 431 cmaj = cdevsw_lookup_major(&wd_cdevsw); 432 433 s = splbio(); 434 435 /* Kill off any queued buffers. */ 436 while ((bp = BUFQ_GET(&sc->sc_q)) != NULL) { 437 bp->b_error = EIO; 438 bp->b_flags |= B_ERROR; 439 bp->b_resid = bp->b_bcount; 440 biodone(bp); 441 } 442 443 bufq_free(&sc->sc_q); 444 445 splx(s); 446 447 /* Nuke the vnodes for any open instances. */ 448 for (i = 0; i < MAXPARTITIONS; i++) { 449 mn = WDMINOR(self->dv_unit, i); 450 vdevgone(bmaj, mn, mn, VBLK); 451 vdevgone(cmaj, mn, mn, VCHR); 452 } 453 454 /* Detach disk. */ 455 disk_detach(&sc->sc_dk); 456 457 /* Clean out the bad sector list */ 458 while (!SLIST_EMPTY(&sc->sc_bslist)) { 459 void *head = SLIST_FIRST(&sc->sc_bslist); 460 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 461 free(head, M_TEMP); 462 } 463 sc->sc_bscount = 0; 464 465 /* Get rid of the shutdown hook. */ 466 if (sc->sc_sdhook != NULL) 467 shutdownhook_disestablish(sc->sc_sdhook); 468 469 #if NRND > 0 470 /* Unhook the entropy source. */ 471 rnd_detach_source(&sc->rnd_source); 472 #endif 473 474 lockmgr(&sc->sc_lock, LK_DRAIN, NULL); 475 476 return (0); 477 } 478 479 /* 480 * Read/write routine for a buffer. Validates the arguments and schedules the 481 * transfer. Does not wait for the transfer to complete. 482 */ 483 void 484 wdstrategy(struct buf *bp) 485 { 486 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 487 struct disklabel *lp = wd->sc_dk.dk_label; 488 daddr_t blkno; 489 int s; 490 491 WDCDEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 492 DEBUG_XFERS); 493 494 /* Valid request? */ 495 if (bp->b_blkno < 0 || 496 (bp->b_bcount % lp->d_secsize) != 0 || 497 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 498 bp->b_error = EINVAL; 499 goto bad; 500 } 501 502 /* If device invalidated (e.g. media change, door open), error. */ 503 if ((wd->sc_flags & WDF_LOADED) == 0) { 504 bp->b_error = EIO; 505 goto bad; 506 } 507 508 /* If it's a null transfer, return immediately. */ 509 if (bp->b_bcount == 0) 510 goto done; 511 512 /* 513 * Do bounds checking, adjust transfer. if error, process. 514 * If end of partition, just return. 515 */ 516 if (WDPART(bp->b_dev) == RAW_PART) { 517 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 518 wd->sc_capacity) <= 0) 519 goto done; 520 } else { 521 if (bounds_check_with_label(&wd->sc_dk, bp, 522 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 523 goto done; 524 } 525 526 /* 527 * Now convert the block number to absolute and put it in 528 * terms of the device's logical block size. 529 */ 530 if (lp->d_secsize >= DEV_BSIZE) 531 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 532 else 533 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 534 535 if (WDPART(bp->b_dev) != RAW_PART) 536 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 537 538 bp->b_rawblkno = blkno; 539 540 /* 541 * If the transfer about to be attempted contains only a block that 542 * is known to be bad then return an error for the transfer without 543 * even attempting to start a transfer up under the premis that we 544 * will just end up doing more retries for a transfer that will end 545 * up failing again. 546 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 547 */ 548 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 549 struct disk_badsectors *dbs; 550 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 551 552 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 553 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 554 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 555 bp->b_error = EIO; 556 goto bad; 557 } 558 } 559 560 /* Queue transfer on drive, activate drive and controller if idle. */ 561 s = splbio(); 562 BUFQ_PUT(&wd->sc_q, bp); 563 wdstart(wd); 564 splx(s); 565 return; 566 bad: 567 bp->b_flags |= B_ERROR; 568 done: 569 /* Toss transfer; we're done early. */ 570 bp->b_resid = bp->b_bcount; 571 biodone(bp); 572 } 573 574 /* 575 * Queue a drive for I/O. 576 */ 577 void 578 wdstart(void *arg) 579 { 580 struct wd_softc *wd = arg; 581 struct buf *bp = NULL; 582 583 WDCDEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 584 DEBUG_XFERS); 585 while (wd->openings > 0) { 586 587 /* Is there a buf for us ? */ 588 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 589 return; 590 591 /* 592 * Make the command. First lock the device 593 */ 594 wd->openings--; 595 596 wd->retries = 0; 597 __wdstart(wd, bp); 598 } 599 } 600 601 static void 602 wd_split_mod15_write(struct buf *bp) 603 { 604 struct buf *obp = bp->b_private; 605 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 606 607 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 608 /* 609 * Propagate the error. If this was the first half of 610 * the original transfer, make sure to account for that 611 * in the residual. 612 */ 613 if (bp->b_data == obp->b_data) 614 bp->b_resid += bp->b_bcount; 615 goto done; 616 } 617 618 /* 619 * If this was the second half of the transfer, we're all done! 620 */ 621 if (bp->b_data != obp->b_data) 622 goto done; 623 624 /* 625 * Advance the pointer to the second half and issue that command 626 * using the same opening. 627 */ 628 bp->b_flags = obp->b_flags | B_CALL; 629 bp->b_data += bp->b_bcount; 630 bp->b_blkno += (bp->b_bcount / 512); 631 bp->b_rawblkno += (bp->b_bcount / 512); 632 __wdstart(sc, bp); 633 return; 634 635 done: 636 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 637 obp->b_error = bp->b_error; 638 obp->b_resid = bp->b_resid; 639 pool_put(&bufpool, bp); 640 biodone(obp); 641 sc->openings++; 642 /* wddone() will call wdstart() */ 643 } 644 645 void 646 __wdstart(struct wd_softc *wd, struct buf *bp) 647 { 648 649 /* 650 * Deal with the "split mod15 write" quirk. We just divide the 651 * transfer in two, doing the first half and then then second half 652 * with the same command opening. 653 * 654 * Note we MUST do this here, because we can't let insertion 655 * into the bufq cause the transfers to be re-merged. 656 */ 657 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 658 (bp->b_flags & B_READ) == 0 && 659 bp->b_bcount > 512 && 660 ((bp->b_bcount / 512) % 15) == 1)) { 661 struct buf *nbp; 662 663 /* already at splbio */ 664 nbp = pool_get(&bufpool, PR_NOWAIT); 665 if (__predict_false(nbp == NULL)) { 666 /* No memory -- fail the iop. */ 667 bp->b_error = ENOMEM; 668 bp->b_flags |= B_ERROR; 669 bp->b_resid = bp->b_bcount; 670 biodone(bp); 671 wd->openings++; 672 return; 673 } 674 675 BUF_INIT(nbp); 676 nbp->b_error = 0; 677 nbp->b_proc = bp->b_proc; 678 nbp->b_vp = NULLVP; 679 nbp->b_dev = bp->b_dev; 680 681 nbp->b_bcount = bp->b_bcount / 2; 682 nbp->b_bufsize = bp->b_bcount / 2; 683 nbp->b_data = bp->b_data; 684 685 nbp->b_blkno = bp->b_blkno; 686 nbp->b_rawblkno = bp->b_rawblkno; 687 688 nbp->b_flags = bp->b_flags | B_CALL; 689 nbp->b_iodone = wd_split_mod15_write; 690 691 /* Put ptr to orig buf in b_private and use new buf */ 692 nbp->b_private = bp; 693 694 BIO_COPYPRIO(nbp, bp); 695 696 bp = nbp; 697 } 698 699 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 700 wd->sc_wdc_bio.blkdone =0; 701 wd->sc_bp = bp; 702 /* 703 * If we're retrying, retry in single-sector mode. This will give us 704 * the sector number of the problem, and will eventually allow the 705 * transfer to succeed. 706 */ 707 if (wd->retries >= WDIORETRIES_SINGLE) 708 wd->sc_wdc_bio.flags = ATA_SINGLE; 709 else 710 wd->sc_wdc_bio.flags = 0; 711 if (wd->sc_flags & WDF_LBA48 && 712 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 713 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 714 wd->sc_wdc_bio.flags |= ATA_LBA48; 715 if (wd->sc_flags & WDF_LBA) 716 wd->sc_wdc_bio.flags |= ATA_LBA; 717 if (bp->b_flags & B_READ) 718 wd->sc_wdc_bio.flags |= ATA_READ; 719 wd->sc_wdc_bio.bcount = bp->b_bcount; 720 wd->sc_wdc_bio.databuf = bp->b_data; 721 /* Instrumentation. */ 722 disk_busy(&wd->sc_dk); 723 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 724 case WDC_TRY_AGAIN: 725 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 726 break; 727 case WDC_QUEUED: 728 case WDC_COMPLETE: 729 break; 730 default: 731 panic("__wdstart: bad return code from ata_bio()"); 732 } 733 } 734 735 void 736 wddone(void *v) 737 { 738 struct wd_softc *wd = v; 739 struct buf *bp = wd->sc_bp; 740 const char *errmsg; 741 int do_perror = 0; 742 WDCDEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 743 DEBUG_XFERS); 744 745 if (bp == NULL) 746 return; 747 bp->b_resid = wd->sc_wdc_bio.bcount; 748 switch (wd->sc_wdc_bio.error) { 749 case ERR_DMA: 750 errmsg = "DMA error"; 751 goto retry; 752 case ERR_DF: 753 errmsg = "device fault"; 754 goto retry; 755 case TIMEOUT: 756 errmsg = "device timeout"; 757 goto retry; 758 case ERR_RESET: 759 errmsg = "channel reset"; 760 goto retry2; 761 case ERROR: 762 /* Don't care about media change bits */ 763 if (wd->sc_wdc_bio.r_error != 0 && 764 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 765 goto noerror; 766 errmsg = "error"; 767 do_perror = 1; 768 retry: /* Just reset and retry. Can we do more ? */ 769 wd->atabus->ata_reset_channel(wd->drvp, AT_RST_NOCMD); 770 retry2: 771 diskerr(bp, "wd", errmsg, LOG_PRINTF, 772 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 773 if (wd->retries < WDIORETRIES) 774 printf(", retrying\n"); 775 if (do_perror) 776 wdperror(wd); 777 if (wd->retries < WDIORETRIES) { 778 wd->retries++; 779 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 780 wdrestart, wd); 781 return; 782 } 783 printf("\n"); 784 785 /* 786 * Not all errors indicate a failed block but those that do, 787 * put the block on the bad-block list for the device. Only 788 * do this for reads because the drive should do it for writes, 789 * itself, according to Manuel. 790 */ 791 if ((bp->b_flags & B_READ) && 792 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 793 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 794 struct disk_badsectors *dbs; 795 796 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 797 dbs->dbs_min = bp->b_rawblkno; 798 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 799 microtime(&dbs->dbs_failedat); 800 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 801 wd->sc_bscount++; 802 } 803 804 bp->b_flags |= B_ERROR; 805 bp->b_error = EIO; 806 break; 807 case NOERROR: 808 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 809 printf("%s: soft error (corrected)\n", 810 wd->sc_dev.dv_xname); 811 break; 812 case ERR_NODEV: 813 bp->b_flags |= B_ERROR; 814 bp->b_error = EIO; 815 break; 816 } 817 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 818 (bp->b_flags & B_READ)); 819 #if NRND > 0 820 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 821 #endif 822 /* XXX Yuck, but we don't want to increment openings in this case */ 823 if (__predict_false((bp->b_flags & B_CALL) != 0 && 824 bp->b_iodone == wd_split_mod15_write)) 825 biodone(bp); 826 else { 827 biodone(bp); 828 wd->openings++; 829 } 830 wdstart(wd); 831 } 832 833 void 834 wdrestart(void *v) 835 { 836 struct wd_softc *wd = v; 837 struct buf *bp = wd->sc_bp; 838 int s; 839 WDCDEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 840 DEBUG_XFERS); 841 842 s = splbio(); 843 __wdstart(v, bp); 844 splx(s); 845 } 846 847 int 848 wdread(dev_t dev, struct uio *uio, int flags) 849 { 850 851 WDCDEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 852 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 853 } 854 855 int 856 wdwrite(dev_t dev, struct uio *uio, int flags) 857 { 858 859 WDCDEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 860 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 861 } 862 863 int 864 wdopen(dev_t dev, int flag, int fmt, struct proc *p) 865 { 866 struct wd_softc *wd; 867 int part, error; 868 869 WDCDEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 870 wd = device_lookup(&wd_cd, WDUNIT(dev)); 871 if (wd == NULL) 872 return (ENXIO); 873 874 if ((wd->sc_dev.dv_flags & DVF_ACTIVE) == 0) 875 return (ENODEV); 876 877 /* 878 * If this is the first open of this device, add a reference 879 * to the adapter. 880 */ 881 if (wd->sc_dk.dk_openmask == 0 && 882 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 883 return (error); 884 885 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 886 goto bad4; 887 888 if (wd->sc_dk.dk_openmask != 0) { 889 /* 890 * If any partition is open, but the disk has been invalidated, 891 * disallow further opens. 892 */ 893 if ((wd->sc_flags & WDF_LOADED) == 0) { 894 error = EIO; 895 goto bad3; 896 } 897 } else { 898 if ((wd->sc_flags & WDF_LOADED) == 0) { 899 wd->sc_flags |= WDF_LOADED; 900 901 /* Load the physical device parameters. */ 902 wd_get_params(wd, AT_WAIT, &wd->sc_params); 903 904 /* Load the partition info if not already loaded. */ 905 wdgetdisklabel(wd); 906 } 907 } 908 909 part = WDPART(dev); 910 911 /* Check that the partition exists. */ 912 if (part != RAW_PART && 913 (part >= wd->sc_dk.dk_label->d_npartitions || 914 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 915 error = ENXIO; 916 goto bad; 917 } 918 919 /* Insure only one open at a time. */ 920 switch (fmt) { 921 case S_IFCHR: 922 wd->sc_dk.dk_copenmask |= (1 << part); 923 break; 924 case S_IFBLK: 925 wd->sc_dk.dk_bopenmask |= (1 << part); 926 break; 927 } 928 wd->sc_dk.dk_openmask = 929 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 930 931 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 932 return 0; 933 934 bad: 935 if (wd->sc_dk.dk_openmask == 0) { 936 } 937 938 bad3: 939 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 940 bad4: 941 if (wd->sc_dk.dk_openmask == 0) 942 wd->atabus->ata_delref(wd->drvp); 943 return error; 944 } 945 946 int 947 wdclose(dev_t dev, int flag, int fmt, struct proc *p) 948 { 949 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 950 int part = WDPART(dev); 951 int error; 952 953 WDCDEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 954 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 955 return error; 956 957 switch (fmt) { 958 case S_IFCHR: 959 wd->sc_dk.dk_copenmask &= ~(1 << part); 960 break; 961 case S_IFBLK: 962 wd->sc_dk.dk_bopenmask &= ~(1 << part); 963 break; 964 } 965 wd->sc_dk.dk_openmask = 966 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 967 968 if (wd->sc_dk.dk_openmask == 0) { 969 wd_flushcache(wd, AT_WAIT); 970 /* XXXX Must wait for I/O to complete! */ 971 972 if (! (wd->sc_flags & WDF_KLABEL)) 973 wd->sc_flags &= ~WDF_LOADED; 974 975 wd->atabus->ata_delref(wd->drvp); 976 } 977 978 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 979 return 0; 980 } 981 982 void 983 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 984 { 985 986 WDCDEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 987 memset(lp, 0, sizeof(struct disklabel)); 988 989 lp->d_secsize = DEV_BSIZE; 990 lp->d_ntracks = wd->sc_params.atap_heads; 991 lp->d_nsectors = wd->sc_params.atap_sectors; 992 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 993 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 994 wd->sc_params.atap_cylinders; 995 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 996 997 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 998 lp->d_type = DTYPE_ST506; 999 else 1000 lp->d_type = DTYPE_ESDI; 1001 1002 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1003 strncpy(lp->d_packname, "fictitious", 16); 1004 if (wd->sc_capacity > UINT32_MAX) 1005 lp->d_secperunit = UINT32_MAX; 1006 else 1007 lp->d_secperunit = wd->sc_capacity; 1008 lp->d_rpm = 3600; 1009 lp->d_interleave = 1; 1010 lp->d_flags = 0; 1011 1012 lp->d_partitions[RAW_PART].p_offset = 0; 1013 lp->d_partitions[RAW_PART].p_size = 1014 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1015 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1016 lp->d_npartitions = RAW_PART + 1; 1017 1018 lp->d_magic = DISKMAGIC; 1019 lp->d_magic2 = DISKMAGIC; 1020 lp->d_checksum = dkcksum(lp); 1021 } 1022 1023 /* 1024 * Fabricate a default disk label, and try to read the correct one. 1025 */ 1026 void 1027 wdgetdisklabel(struct wd_softc *wd) 1028 { 1029 struct disklabel *lp = wd->sc_dk.dk_label; 1030 const char *errstring; 1031 1032 WDCDEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1033 1034 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1035 1036 wdgetdefaultlabel(wd, lp); 1037 1038 wd->sc_badsect[0] = -1; 1039 1040 if (wd->drvp->state > RESET) 1041 wd->drvp->drive_flags |= DRIVE_RESET; 1042 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1043 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1044 if (errstring) { 1045 /* 1046 * This probably happened because the drive's default 1047 * geometry doesn't match the DOS geometry. We 1048 * assume the DOS geometry is now in the label and try 1049 * again. XXX This is a kluge. 1050 */ 1051 if (wd->drvp->state > RESET) 1052 wd->drvp->drive_flags |= DRIVE_RESET; 1053 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1054 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1055 } 1056 if (errstring) { 1057 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1058 return; 1059 } 1060 1061 if (wd->drvp->state > RESET) 1062 wd->drvp->drive_flags |= DRIVE_RESET; 1063 #ifdef HAS_BAD144_HANDLING 1064 if ((lp->d_flags & D_BADSECT) != 0) 1065 bad144intern(wd); 1066 #endif 1067 } 1068 1069 void 1070 wdperror(const struct wd_softc *wd) 1071 { 1072 static const char *const errstr0_3[] = {"address mark not found", 1073 "track 0 not found", "aborted command", "media change requested", 1074 "id not found", "media changed", "uncorrectable data error", 1075 "bad block detected"}; 1076 static const char *const errstr4_5[] = { 1077 "obsolete (address mark not found)", 1078 "no media/write protected", "aborted command", 1079 "media change requested", "id not found", "media changed", 1080 "uncorrectable data error", "interface CRC error"}; 1081 const char *const *errstr; 1082 int i; 1083 char *sep = ""; 1084 1085 const char *devname = wd->sc_dev.dv_xname; 1086 struct ata_drive_datas *drvp = wd->drvp; 1087 int errno = wd->sc_wdc_bio.r_error; 1088 1089 if (drvp->ata_vers >= 4) 1090 errstr = errstr4_5; 1091 else 1092 errstr = errstr0_3; 1093 1094 printf("%s: (", devname); 1095 1096 if (errno == 0) 1097 printf("error not notified"); 1098 1099 for (i = 0; i < 8; i++) { 1100 if (errno & (1 << i)) { 1101 printf("%s%s", sep, errstr[i]); 1102 sep = ", "; 1103 } 1104 } 1105 printf(")\n"); 1106 } 1107 1108 int 1109 wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct proc *p) 1110 { 1111 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1112 int error = 0; 1113 #ifdef __HAVE_OLD_DISKLABEL 1114 struct disklabel *newlabel = NULL; 1115 #endif 1116 1117 WDCDEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1118 1119 if ((wd->sc_flags & WDF_LOADED) == 0) 1120 return EIO; 1121 1122 switch (xfer) { 1123 #ifdef HAS_BAD144_HANDLING 1124 case DIOCSBAD: 1125 if ((flag & FWRITE) == 0) 1126 return EBADF; 1127 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1128 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1129 bad144intern(wd); 1130 return 0; 1131 #endif 1132 1133 case DIOCBSLIST : 1134 { 1135 u_int32_t count, missing, skip; 1136 struct disk_badsecinfo dbsi; 1137 struct disk_badsectors *dbs; 1138 size_t available; 1139 caddr_t laddr; 1140 1141 dbsi = *(struct disk_badsecinfo *)addr; 1142 missing = wd->sc_bscount; 1143 count = 0; 1144 available = dbsi.dbsi_bufsize; 1145 skip = dbsi.dbsi_skip; 1146 laddr = dbsi.dbsi_buffer; 1147 1148 /* 1149 * We start this loop with the expectation that all of the 1150 * entries will be missed and decrement this counter each 1151 * time we either skip over one (already copied out) or 1152 * we actually copy it back to user space. The structs 1153 * holding the bad sector information are copied directly 1154 * back to user space whilst the summary is returned via 1155 * the struct passed in via the ioctl. 1156 */ 1157 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1158 if (skip > 0) { 1159 missing--; 1160 skip--; 1161 continue; 1162 } 1163 if (available < sizeof(*dbs)) 1164 break; 1165 available -= sizeof(*dbs); 1166 copyout(dbs, laddr, sizeof(*dbs)); 1167 laddr += sizeof(*dbs); 1168 missing--; 1169 count++; 1170 } 1171 dbsi.dbsi_left = missing; 1172 dbsi.dbsi_copied = count; 1173 *(struct disk_badsecinfo *)addr = dbsi; 1174 return 0; 1175 } 1176 1177 case DIOCBSFLUSH : 1178 /* Clean out the bad sector list */ 1179 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1180 void *head = SLIST_FIRST(&wd->sc_bslist); 1181 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1182 free(head, M_TEMP); 1183 } 1184 wd->sc_bscount = 0; 1185 return 0; 1186 1187 case DIOCGDINFO: 1188 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1189 return 0; 1190 #ifdef __HAVE_OLD_DISKLABEL 1191 case ODIOCGDINFO: 1192 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1193 if (newlabel == NULL) 1194 return EIO; 1195 *newlabel = *(wd->sc_dk.dk_label); 1196 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1197 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1198 else 1199 error = ENOTTY; 1200 free(newlabel, M_TEMP); 1201 return error; 1202 #endif 1203 1204 case DIOCGPART: 1205 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1206 ((struct partinfo *)addr)->part = 1207 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1208 return 0; 1209 1210 case DIOCWDINFO: 1211 case DIOCSDINFO: 1212 #ifdef __HAVE_OLD_DISKLABEL 1213 case ODIOCWDINFO: 1214 case ODIOCSDINFO: 1215 #endif 1216 { 1217 struct disklabel *lp; 1218 1219 if ((flag & FWRITE) == 0) 1220 return EBADF; 1221 1222 #ifdef __HAVE_OLD_DISKLABEL 1223 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1224 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1225 if (newlabel == NULL) 1226 return EIO; 1227 memset(newlabel, 0, sizeof newlabel); 1228 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1229 lp = newlabel; 1230 } else 1231 #endif 1232 lp = (struct disklabel *)addr; 1233 1234 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 1235 goto bad; 1236 wd->sc_flags |= WDF_LABELLING; 1237 1238 error = setdisklabel(wd->sc_dk.dk_label, 1239 lp, /*wd->sc_dk.dk_openmask : */0, 1240 wd->sc_dk.dk_cpulabel); 1241 if (error == 0) { 1242 if (wd->drvp->state > RESET) 1243 wd->drvp->drive_flags |= DRIVE_RESET; 1244 if (xfer == DIOCWDINFO 1245 #ifdef __HAVE_OLD_DISKLABEL 1246 || xfer == ODIOCWDINFO 1247 #endif 1248 ) 1249 error = writedisklabel(WDLABELDEV(dev), 1250 wdstrategy, wd->sc_dk.dk_label, 1251 wd->sc_dk.dk_cpulabel); 1252 } 1253 1254 wd->sc_flags &= ~WDF_LABELLING; 1255 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 1256 bad: 1257 #ifdef __HAVE_OLD_DISKLABEL 1258 if (newlabel != NULL) 1259 free(newlabel, M_TEMP); 1260 #endif 1261 return error; 1262 } 1263 1264 case DIOCKLABEL: 1265 if (*(int *)addr) 1266 wd->sc_flags |= WDF_KLABEL; 1267 else 1268 wd->sc_flags &= ~WDF_KLABEL; 1269 return 0; 1270 1271 case DIOCWLABEL: 1272 if ((flag & FWRITE) == 0) 1273 return EBADF; 1274 if (*(int *)addr) 1275 wd->sc_flags |= WDF_WLABEL; 1276 else 1277 wd->sc_flags &= ~WDF_WLABEL; 1278 return 0; 1279 1280 case DIOCGDEFLABEL: 1281 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1282 return 0; 1283 #ifdef __HAVE_OLD_DISKLABEL 1284 case ODIOCGDEFLABEL: 1285 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1286 if (newlabel == NULL) 1287 return EIO; 1288 wdgetdefaultlabel(wd, newlabel); 1289 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1290 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1291 else 1292 error = ENOTTY; 1293 free(newlabel, M_TEMP); 1294 return error; 1295 #endif 1296 1297 #ifdef notyet 1298 case DIOCWFORMAT: 1299 if ((flag & FWRITE) == 0) 1300 return EBADF; 1301 { 1302 register struct format_op *fop; 1303 struct iovec aiov; 1304 struct uio auio; 1305 1306 fop = (struct format_op *)addr; 1307 aiov.iov_base = fop->df_buf; 1308 aiov.iov_len = fop->df_count; 1309 auio.uio_iov = &aiov; 1310 auio.uio_iovcnt = 1; 1311 auio.uio_resid = fop->df_count; 1312 auio.uio_segflg = 0; 1313 auio.uio_offset = 1314 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1315 auio.uio_procp = p; 1316 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1317 &auio); 1318 fop->df_count -= auio.uio_resid; 1319 fop->df_reg[0] = wdc->sc_status; 1320 fop->df_reg[1] = wdc->sc_error; 1321 return error; 1322 } 1323 #endif 1324 case DIOCGCACHE: 1325 return wd_getcache(wd, (int *)addr); 1326 1327 case DIOCSCACHE: 1328 return wd_setcache(wd, *(int *)addr); 1329 1330 case DIOCCACHESYNC: 1331 return wd_flushcache(wd, AT_WAIT); 1332 1333 case ATAIOCCOMMAND: 1334 /* 1335 * Make sure this command is (relatively) safe first 1336 */ 1337 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1338 (flag & FWRITE) == 0) 1339 return (EBADF); 1340 { 1341 struct wd_ioctl *wi; 1342 atareq_t *atareq = (atareq_t *) addr; 1343 int error; 1344 1345 wi = wi_get(); 1346 wi->wi_softc = wd; 1347 wi->wi_atareq = *atareq; 1348 1349 if (atareq->datalen && atareq->flags & 1350 (ATACMD_READ | ATACMD_WRITE)) { 1351 wi->wi_iov.iov_base = atareq->databuf; 1352 wi->wi_iov.iov_len = atareq->datalen; 1353 wi->wi_uio.uio_iov = &wi->wi_iov; 1354 wi->wi_uio.uio_iovcnt = 1; 1355 wi->wi_uio.uio_resid = atareq->datalen; 1356 wi->wi_uio.uio_offset = 0; 1357 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1358 wi->wi_uio.uio_rw = 1359 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1360 wi->wi_uio.uio_procp = p; 1361 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1362 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1363 minphys, &wi->wi_uio); 1364 } else { 1365 /* No need to call physio if we don't have any 1366 user data */ 1367 wi->wi_bp.b_flags = 0; 1368 wi->wi_bp.b_data = 0; 1369 wi->wi_bp.b_bcount = 0; 1370 wi->wi_bp.b_dev = 0; 1371 wi->wi_bp.b_proc = p; 1372 wdioctlstrategy(&wi->wi_bp); 1373 error = wi->wi_bp.b_error; 1374 } 1375 *atareq = wi->wi_atareq; 1376 wi_free(wi); 1377 return(error); 1378 } 1379 1380 default: 1381 return ENOTTY; 1382 } 1383 1384 #ifdef DIAGNOSTIC 1385 panic("wdioctl: impossible"); 1386 #endif 1387 } 1388 1389 #ifdef B_FORMAT 1390 int 1391 wdformat(struct buf *bp) 1392 { 1393 1394 bp->b_flags |= B_FORMAT; 1395 return wdstrategy(bp); 1396 } 1397 #endif 1398 1399 int 1400 wdsize(dev_t dev) 1401 { 1402 struct wd_softc *wd; 1403 int part, omask; 1404 int size; 1405 1406 WDCDEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1407 1408 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1409 if (wd == NULL) 1410 return (-1); 1411 1412 part = WDPART(dev); 1413 omask = wd->sc_dk.dk_openmask & (1 << part); 1414 1415 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1416 return (-1); 1417 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1418 size = -1; 1419 else 1420 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1421 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1422 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1423 return (-1); 1424 return (size); 1425 } 1426 1427 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1428 static int wddoingadump = 0; 1429 static int wddumprecalibrated = 0; 1430 static int wddumpmulti = 1; 1431 1432 /* 1433 * Dump core after a system crash. 1434 */ 1435 int 1436 wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1437 { 1438 struct wd_softc *wd; /* disk unit to do the I/O */ 1439 struct disklabel *lp; /* disk's disklabel */ 1440 int part, err; 1441 int nblks; /* total number of sectors left to write */ 1442 1443 /* Check if recursive dump; if so, punt. */ 1444 if (wddoingadump) 1445 return EFAULT; 1446 wddoingadump = 1; 1447 1448 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1449 if (wd == NULL) 1450 return (ENXIO); 1451 1452 part = WDPART(dev); 1453 1454 /* Convert to disk sectors. Request must be a multiple of size. */ 1455 lp = wd->sc_dk.dk_label; 1456 if ((size % lp->d_secsize) != 0) 1457 return EFAULT; 1458 nblks = size / lp->d_secsize; 1459 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1460 1461 /* Check transfer bounds against partition size. */ 1462 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1463 return EINVAL; 1464 1465 /* Offset block number to start of partition. */ 1466 blkno += lp->d_partitions[part].p_offset; 1467 1468 /* Recalibrate, if first dump transfer. */ 1469 if (wddumprecalibrated == 0) { 1470 wddumpmulti = wd->sc_multi; 1471 wddumprecalibrated = 1; 1472 wd->atabus->ata_reset_channel(wd->drvp, AT_POLL | AT_RST_EMERG); 1473 wd->drvp->state = RESET; 1474 } 1475 1476 while (nblks > 0) { 1477 wd->sc_bp = NULL; 1478 wd->sc_wdc_bio.blkno = blkno; 1479 wd->sc_wdc_bio.flags = ATA_POLL; 1480 if (wd->sc_flags & WDF_LBA48 && 1481 (blkno > LBA48_THRESHOLD || 1482 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1483 wd->sc_wdc_bio.flags |= ATA_LBA48; 1484 if (wd->sc_flags & WDF_LBA) 1485 wd->sc_wdc_bio.flags |= ATA_LBA; 1486 wd->sc_wdc_bio.bcount = 1487 min(nblks, wddumpmulti) * lp->d_secsize; 1488 wd->sc_wdc_bio.databuf = va; 1489 #ifndef WD_DUMP_NOT_TRUSTED 1490 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1491 case WDC_TRY_AGAIN: 1492 panic("wddump: try again"); 1493 break; 1494 case WDC_QUEUED: 1495 panic("wddump: polled command has been queued"); 1496 break; 1497 case WDC_COMPLETE: 1498 break; 1499 } 1500 switch(wd->sc_wdc_bio.error) { 1501 case TIMEOUT: 1502 printf("wddump: device timed out"); 1503 err = EIO; 1504 break; 1505 case ERR_DF: 1506 printf("wddump: drive fault"); 1507 err = EIO; 1508 break; 1509 case ERR_DMA: 1510 printf("wddump: DMA error"); 1511 err = EIO; 1512 break; 1513 case ERROR: 1514 printf("wddump: "); 1515 wdperror(wd); 1516 err = EIO; 1517 break; 1518 case NOERROR: 1519 err = 0; 1520 break; 1521 default: 1522 panic("wddump: unknown error type"); 1523 } 1524 if (err != 0) { 1525 printf("\n"); 1526 return err; 1527 } 1528 #else /* WD_DUMP_NOT_TRUSTED */ 1529 /* Let's just talk about this first... */ 1530 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1531 unit, va, cylin, head, sector); 1532 delay(500 * 1000); /* half a second */ 1533 #endif 1534 1535 /* update block count */ 1536 nblks -= min(nblks, wddumpmulti); 1537 blkno += min(nblks, wddumpmulti); 1538 va += min(nblks, wddumpmulti) * lp->d_secsize; 1539 } 1540 1541 wddoingadump = 0; 1542 return 0; 1543 } 1544 1545 #ifdef HAS_BAD144_HANDLING 1546 /* 1547 * Internalize the bad sector table. 1548 */ 1549 void 1550 bad144intern(struct wd_softc *wd) 1551 { 1552 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1553 struct disklabel *lp = wd->sc_dk.dk_label; 1554 int i = 0; 1555 1556 WDCDEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1557 1558 for (; i < NBT_BAD; i++) { 1559 if (bt->bt_bad[i].bt_cyl == 0xffff) 1560 break; 1561 wd->sc_badsect[i] = 1562 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1563 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1564 (bt->bt_bad[i].bt_trksec & 0xff); 1565 } 1566 for (; i < NBT_BAD+1; i++) 1567 wd->sc_badsect[i] = -1; 1568 } 1569 #endif 1570 1571 int 1572 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1573 { 1574 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1575 case CMD_AGAIN: 1576 return 1; 1577 case CMD_ERR: 1578 /* 1579 * We `know' there's a drive here; just assume it's old. 1580 * This geometry is only used to read the MBR and print a 1581 * (false) attach message. 1582 */ 1583 strncpy(params->atap_model, "ST506", 1584 sizeof params->atap_model); 1585 params->atap_config = ATA_CFG_FIXED; 1586 params->atap_cylinders = 1024; 1587 params->atap_heads = 8; 1588 params->atap_sectors = 17; 1589 params->atap_multi = 1; 1590 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1591 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1592 return 0; 1593 case CMD_OK: 1594 return 0; 1595 default: 1596 panic("wd_get_params: bad return code from ata_get_params"); 1597 /* NOTREACHED */ 1598 } 1599 } 1600 1601 int 1602 wd_getcache(struct wd_softc *wd, int *bitsp) 1603 { 1604 struct ataparams params; 1605 1606 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1607 return EIO; 1608 if (params.atap_cmd_set1 == 0x0000 || 1609 params.atap_cmd_set1 == 0xffff || 1610 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1611 *bitsp = 0; 1612 return 0; 1613 } 1614 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1615 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1616 *bitsp |= DKCACHE_WRITE; 1617 1618 return 0; 1619 } 1620 1621 int 1622 wd_setcache(struct wd_softc *wd, int bits) 1623 { 1624 struct ataparams params; 1625 struct wdc_command wdc_c; 1626 1627 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1628 return EIO; 1629 1630 if (params.atap_cmd_set1 == 0x0000 || 1631 params.atap_cmd_set1 == 0xffff || 1632 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1633 return EOPNOTSUPP; 1634 1635 if ((bits & DKCACHE_READ) == 0 || 1636 (bits & DKCACHE_SAVE) != 0) 1637 return EOPNOTSUPP; 1638 1639 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1640 wdc_c.r_command = SET_FEATURES; 1641 wdc_c.r_st_bmask = 0; 1642 wdc_c.r_st_pmask = 0; 1643 wdc_c.timeout = 30000; /* 30s timeout */ 1644 wdc_c.flags = AT_WAIT; 1645 if (bits & DKCACHE_WRITE) 1646 wdc_c.r_precomp = WDSF_WRITE_CACHE_EN; 1647 else 1648 wdc_c.r_precomp = WDSF_WRITE_CACHE_DS; 1649 if (wd->atabus->ata_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1650 printf("%s: wd_setcache command not complete\n", 1651 wd->sc_dev.dv_xname); 1652 return EIO; 1653 } 1654 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1655 printf("%s: wd_setcache command error 0x%x\n", 1656 wd->sc_dev.dv_xname, wdc_c.flags); 1657 return EIO; 1658 } 1659 if (wdc_c.flags & ERR_NODEV) 1660 return ENODEV; 1661 return 0; 1662 } 1663 1664 int 1665 wd_flushcache(struct wd_softc *wd, int flags) 1666 { 1667 struct wdc_command wdc_c; 1668 1669 /* 1670 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1671 * only ATA-2 and still support it. 1672 */ 1673 if (wd->drvp->ata_vers < 4 && 1674 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1675 wd->sc_params.atap_cmd_set2 == 0xffff)) 1676 return ENODEV; 1677 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1678 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1679 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1680 wdc_c.r_command = WDCC_FLUSHCACHE_EXT; 1681 else 1682 wdc_c.r_command = WDCC_FLUSHCACHE; 1683 wdc_c.r_st_bmask = WDCS_DRDY; 1684 wdc_c.r_st_pmask = WDCS_DRDY; 1685 wdc_c.flags = flags; 1686 wdc_c.timeout = 30000; /* 30s timeout */ 1687 if (wd->atabus->ata_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1688 printf("%s: flush cache command didn't complete\n", 1689 wd->sc_dev.dv_xname); 1690 return EIO; 1691 } 1692 if (wdc_c.flags & ERR_NODEV) 1693 return ENODEV; 1694 if (wdc_c.flags & AT_TIMEOU) { 1695 printf("%s: flush cache command timeout\n", 1696 wd->sc_dev.dv_xname); 1697 return EIO; 1698 } 1699 if (wdc_c.flags & AT_ERROR) { 1700 if (wdc_c.r_error == WDCE_ABRT) /* command not supported */ 1701 return ENODEV; 1702 printf("%s: flush cache command: error 0x%x\n", 1703 wd->sc_dev.dv_xname, wdc_c.r_error); 1704 return EIO; 1705 } 1706 if (wdc_c.flags & AT_DF) { 1707 printf("%s: flush cache command: drive fault\n", 1708 wd->sc_dev.dv_xname); 1709 return EIO; 1710 } 1711 return 0; 1712 } 1713 1714 void 1715 wd_shutdown(void *arg) 1716 { 1717 struct wd_softc *wd = arg; 1718 wd_flushcache(wd, AT_POLL); 1719 } 1720 1721 /* 1722 * Allocate space for a ioctl queue structure. Mostly taken from 1723 * scsipi_ioctl.c 1724 */ 1725 struct wd_ioctl * 1726 wi_get(void) 1727 { 1728 struct wd_ioctl *wi; 1729 int s; 1730 1731 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1732 simple_lock_init(&wi->wi_bp.b_interlock); 1733 s = splbio(); 1734 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1735 splx(s); 1736 return (wi); 1737 } 1738 1739 /* 1740 * Free an ioctl structure and remove it from our list 1741 */ 1742 1743 void 1744 wi_free(struct wd_ioctl *wi) 1745 { 1746 int s; 1747 1748 s = splbio(); 1749 LIST_REMOVE(wi, wi_list); 1750 splx(s); 1751 free(wi, M_TEMP); 1752 } 1753 1754 /* 1755 * Find a wd_ioctl structure based on the struct buf. 1756 */ 1757 1758 struct wd_ioctl * 1759 wi_find(struct buf *bp) 1760 { 1761 struct wd_ioctl *wi; 1762 int s; 1763 1764 s = splbio(); 1765 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1766 if (bp == &wi->wi_bp) 1767 break; 1768 splx(s); 1769 return (wi); 1770 } 1771 1772 /* 1773 * Ioctl pseudo strategy routine 1774 * 1775 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1776 * happens here is: 1777 * 1778 * - wdioctl() queues a wd_ioctl structure. 1779 * 1780 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1781 * user space I/O is required. If physio() is called, physio() eventually 1782 * calls wdioctlstrategy(). 1783 * 1784 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1785 * to perform the actual command 1786 * 1787 * The reason for the use of the pseudo strategy routine is because 1788 * when doing I/O to/from user space, physio _really_ wants to be in 1789 * the loop. We could put the entire buffer into the ioctl request 1790 * structure, but that won't scale if we want to do things like download 1791 * microcode. 1792 */ 1793 1794 void 1795 wdioctlstrategy(struct buf *bp) 1796 { 1797 struct wd_ioctl *wi; 1798 struct wdc_command wdc_c; 1799 int error = 0; 1800 1801 wi = wi_find(bp); 1802 if (wi == NULL) { 1803 printf("user_strat: No ioctl\n"); 1804 error = EINVAL; 1805 goto bad; 1806 } 1807 1808 memset(&wdc_c, 0, sizeof(wdc_c)); 1809 1810 /* 1811 * Abort if physio broke up the transfer 1812 */ 1813 1814 if (bp->b_bcount != wi->wi_atareq.datalen) { 1815 printf("physio split wd ioctl request... cannot proceed\n"); 1816 error = EIO; 1817 goto bad; 1818 } 1819 1820 /* 1821 * Abort if we didn't get a buffer size that was a multiple of 1822 * our sector size (or was larger than NBBY) 1823 */ 1824 1825 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1826 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1827 (1 << NBBY)) { 1828 error = EINVAL; 1829 goto bad; 1830 } 1831 1832 /* 1833 * Make sure a timeout was supplied in the ioctl request 1834 */ 1835 1836 if (wi->wi_atareq.timeout == 0) { 1837 error = EINVAL; 1838 goto bad; 1839 } 1840 1841 if (wi->wi_atareq.flags & ATACMD_READ) 1842 wdc_c.flags |= AT_READ; 1843 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1844 wdc_c.flags |= AT_WRITE; 1845 1846 if (wi->wi_atareq.flags & ATACMD_READREG) 1847 wdc_c.flags |= AT_READREG; 1848 1849 wdc_c.flags |= AT_WAIT; 1850 1851 wdc_c.timeout = wi->wi_atareq.timeout; 1852 wdc_c.r_command = wi->wi_atareq.command; 1853 wdc_c.r_head = wi->wi_atareq.head & 0x0f; 1854 wdc_c.r_cyl = wi->wi_atareq.cylinder; 1855 wdc_c.r_sector = wi->wi_atareq.sec_num; 1856 wdc_c.r_count = wi->wi_atareq.sec_count; 1857 wdc_c.r_precomp = wi->wi_atareq.features; 1858 wdc_c.r_st_bmask = WDCS_DRDY; 1859 wdc_c.r_st_pmask = WDCS_DRDY; 1860 wdc_c.data = wi->wi_bp.b_data; 1861 wdc_c.bcount = wi->wi_bp.b_bcount; 1862 1863 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &wdc_c) 1864 != WDC_COMPLETE) { 1865 wi->wi_atareq.retsts = ATACMD_ERROR; 1866 goto bad; 1867 } 1868 1869 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1870 if (wdc_c.flags & AT_ERROR) { 1871 wi->wi_atareq.retsts = ATACMD_ERROR; 1872 wi->wi_atareq.error = wdc_c.r_error; 1873 } else if (wdc_c.flags & AT_DF) 1874 wi->wi_atareq.retsts = ATACMD_DF; 1875 else 1876 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1877 } else { 1878 wi->wi_atareq.retsts = ATACMD_OK; 1879 if (wi->wi_atareq.flags & ATACMD_READREG) { 1880 wi->wi_atareq.head = wdc_c.r_head ; 1881 wi->wi_atareq.cylinder = wdc_c.r_cyl; 1882 wi->wi_atareq.sec_num = wdc_c.r_sector; 1883 wi->wi_atareq.sec_count = wdc_c.r_count; 1884 wi->wi_atareq.features = wdc_c.r_precomp; 1885 wi->wi_atareq.error = wdc_c.r_error; 1886 } 1887 } 1888 1889 bp->b_error = 0; 1890 biodone(bp); 1891 return; 1892 bad: 1893 bp->b_flags |= B_ERROR; 1894 bp->b_error = error; 1895 biodone(bp); 1896 } 1897
Indexes created Tue Oct 21 16:10:11 GMT 2025