wd.c revision 1.250
1 /* $NetBSD: wd.c,v 1.250 2003/04/27 14:33:20 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 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 1.250 2003/04/27 14:33:20 bouyer Exp $"); 70 71 #ifndef WDCDEBUG 72 #define WDCDEBUG 73 #endif /* WDCDEBUG */ 74 75 #include "opt_bufq.h" 76 #include "rnd.h" 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/kernel.h> 81 #include <sys/conf.h> 82 #include <sys/file.h> 83 #include <sys/stat.h> 84 #include <sys/ioctl.h> 85 #include <sys/buf.h> 86 #include <sys/uio.h> 87 #include <sys/malloc.h> 88 #include <sys/device.h> 89 #include <sys/disklabel.h> 90 #include <sys/disk.h> 91 #include <sys/syslog.h> 92 #include <sys/proc.h> 93 #include <sys/vnode.h> 94 #if NRND > 0 95 #include <sys/rnd.h> 96 #endif 97 98 #include <machine/intr.h> 99 #include <machine/bus.h> 100 101 #define __ATA_DISK_PRIVATE 102 103 #include <dev/ata/atareg.h> 104 #include <dev/ata/atavar.h> 105 #include <dev/ata/wdvar.h> 106 #include <dev/ic/wdcreg.h> 107 #include <sys/ataio.h> 108 #include "locators.h" 109 110 #define WAITTIME (4 * hz) /* time to wait for a completion */ 111 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 112 #define WDIORETRIES 5 /* number of retries before giving up */ 113 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 114 115 #define WDUNIT(dev) DISKUNIT(dev) 116 #define WDPART(dev) DISKPART(dev) 117 #define WDMINOR(unit, part) DISKMINOR(unit, part) 118 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 119 120 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 121 122 #define DEBUG_INTR 0x01 123 #define DEBUG_XFERS 0x02 124 #define DEBUG_STATUS 0x04 125 #define DEBUG_FUNCS 0x08 126 #define DEBUG_PROBE 0x10 127 #ifdef WDCDEBUG 128 extern int wdcdebug_wd_mask; /* init'ed in ata_wdc.c */ 129 #define WDCDEBUG_PRINT(args, level) \ 130 if (wdcdebug_wd_mask & (level)) \ 131 printf args 132 #else 133 #define WDCDEBUG_PRINT(args, level) 134 #endif 135 136 int wdprobe __P((struct device *, struct cfdata *, void *)); 137 void wdattach __P((struct device *, struct device *, void *)); 138 int wddetach __P((struct device *, int)); 139 int wdactivate __P((struct device *, enum devact)); 140 int wdprint __P((void *, char *)); 141 void wdperror __P((const struct wd_softc *)); 142 143 CFATTACH_DECL(wd, sizeof(struct wd_softc), 144 wdprobe, wdattach, wddetach, wdactivate); 145 146 extern struct cfdriver wd_cd; 147 148 dev_type_open(wdopen); 149 dev_type_close(wdclose); 150 dev_type_read(wdread); 151 dev_type_write(wdwrite); 152 dev_type_ioctl(wdioctl); 153 dev_type_strategy(wdstrategy); 154 dev_type_dump(wddump); 155 dev_type_size(wdsize); 156 157 const struct bdevsw wd_bdevsw = { 158 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 159 }; 160 161 const struct cdevsw wd_cdevsw = { 162 wdopen, wdclose, wdread, wdwrite, wdioctl, 163 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 164 }; 165 166 /* 167 * Glue necessary to hook WDCIOCCOMMAND into physio 168 */ 169 170 struct wd_ioctl { 171 LIST_ENTRY(wd_ioctl) wi_list; 172 struct buf wi_bp; 173 struct uio wi_uio; 174 struct iovec wi_iov; 175 atareq_t wi_atareq; 176 struct wd_softc *wi_softc; 177 }; 178 179 LIST_HEAD(, wd_ioctl) wi_head; 180 181 struct wd_ioctl *wi_find __P((struct buf *)); 182 void wi_free __P((struct wd_ioctl *)); 183 struct wd_ioctl *wi_get __P((void)); 184 void wdioctlstrategy __P((struct buf *)); 185 186 void wdgetdefaultlabel __P((struct wd_softc *, struct disklabel *)); 187 void wdgetdisklabel __P((struct wd_softc *)); 188 void wdstart __P((void *)); 189 void __wdstart __P((struct wd_softc*, struct buf *)); 190 void wdrestart __P((void*)); 191 int wd_get_params __P((struct wd_softc *, u_int8_t, struct ataparams *)); 192 void wd_flushcache __P((struct wd_softc *, int)); 193 void wd_shutdown __P((void*)); 194 195 int wd_getcache __P((struct wd_softc *, int *)); 196 int wd_setcache __P((struct wd_softc *, int)); 197 198 struct dkdriver wddkdriver = { wdstrategy }; 199 200 #ifdef HAS_BAD144_HANDLING 201 static void bad144intern __P((struct wd_softc *)); 202 #endif 203 int wdlock __P((struct wd_softc *)); 204 void wdunlock __P((struct wd_softc *)); 205 206 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 207 208 /* 209 * Quirk table for IDE drives. Put more-specific matches first, since 210 * a simple globbing routine is used for matching. 211 */ 212 static const struct wd_quirk { 213 const char *wdq_match; /* inquiry pattern to match */ 214 int wdq_quirks; /* drive quirks */ 215 } wd_quirk_table[] = { 216 /* 217 * Some Seagate S-ATA drives have a PHY which can get confused 218 * with the way data is packetized by some S-ATA controllers. 219 * 220 * The work-around is to split in two any write transfer whose 221 * sector count % 15 == 1 (assuming 512 byte sectors). 222 * 223 * XXX This is an incomplete list. There are at least a couple 224 * XXX more model numbers. If you have trouble with such transfers 225 * XXX (8K is the most common) on Seagate S-ATA drives, please 226 * XXX notify thorpej (at) netbsd.org. 227 */ 228 { "ST3120023AS", 229 WD_QUIRK_SPLIT_MOD15_WRITE }, 230 { "ST380023AS", 231 WD_QUIRK_SPLIT_MOD15_WRITE }, 232 233 { NULL, 234 0 } 235 }; 236 237 static const struct wd_quirk * 238 wd_lookup_quirks(const char *name) 239 { 240 const struct wd_quirk *wdq; 241 const char *estr; 242 243 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 244 /* 245 * We only want exact matches (which include matches 246 * against globbing characters). 247 */ 248 if (pmatch(name, wdq->wdq_match, &estr) == 2) 249 return (wdq); 250 } 251 return (NULL); 252 } 253 254 int 255 wdprobe(parent, match, aux) 256 struct device *parent; 257 struct cfdata *match; 258 259 void *aux; 260 { 261 struct ata_device *adev = aux; 262 263 if (adev == NULL) 264 return 0; 265 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 266 return 0; 267 268 if (match->cf_loc[ATACF_CHANNEL] != ATACF_CHANNEL_DEFAULT && 269 match->cf_loc[ATACF_CHANNEL] != adev->adev_channel) 270 return 0; 271 272 if (match->cf_loc[ATACF_DRIVE] != ATACF_DRIVE_DEFAULT && 273 match->cf_loc[ATACF_DRIVE] != adev->adev_drv_data->drive) 274 return 0; 275 return 1; 276 } 277 278 void 279 wdattach(parent, self, aux) 280 struct device *parent, *self; 281 void *aux; 282 { 283 struct wd_softc *wd = (void *)self; 284 struct ata_device *adev= aux; 285 int i, blank; 286 char buf[41], pbuf[9], c, *p, *q; 287 const struct wd_quirk *wdq; 288 WDCDEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 289 290 callout_init(&wd->sc_restart_ch); 291 #ifdef NEW_BUFQ_STRATEGY 292 bufq_alloc(&wd->sc_q, BUFQ_READ_PRIO|BUFQ_SORT_RAWBLOCK); 293 #else 294 bufq_alloc(&wd->sc_q, BUFQ_DISKSORT|BUFQ_SORT_RAWBLOCK); 295 #endif 296 SLIST_INIT(&wd->sc_bslist); 297 298 wd->atabus = adev->adev_bustype; 299 wd->openings = adev->adev_openings; 300 wd->drvp = adev->adev_drv_data; 301 wd->wdc_softc = parent; 302 /* give back our softc to our caller */ 303 wd->drvp->drv_softc = &wd->sc_dev; 304 305 /* read our drive info */ 306 if (wd_get_params(wd, AT_POLL, &wd->sc_params) != 0) { 307 printf("%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 308 return; 309 } 310 311 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 312 i < sizeof(wd->sc_params.atap_model); i++) { 313 c = *p++; 314 if (c == '\0') 315 break; 316 if (c != ' ') { 317 if (blank) { 318 *q++ = ' '; 319 blank = 0; 320 } 321 *q++ = c; 322 } else 323 blank = 1; 324 } 325 *q++ = '\0'; 326 327 printf(": <%s>\n", buf); 328 329 wdq = wd_lookup_quirks(buf); 330 if (wdq != NULL) 331 wd->sc_quirks = wdq->wdq_quirks; 332 333 if ((wd->sc_params.atap_multi & 0xff) > 1) { 334 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 335 } else { 336 wd->sc_multi = 1; 337 } 338 339 printf("%s: drive supports %d-sector PIO transfers,", 340 wd->sc_dev.dv_xname, wd->sc_multi); 341 342 /* 48-bit LBA addressing */ 343 if ((wd->sc_params.atap_cmd2_en & WDC_CAP_LBA48) != 0) 344 wd->sc_flags |= WDF_LBA48; 345 346 /* Prior to ATA-4, LBA was optional. */ 347 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 348 wd->sc_flags |= WDF_LBA; 349 #if 0 350 /* ATA-4 requires LBA. */ 351 if (wd->sc_params.atap_ataversion != 0xffff && 352 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 353 wd->sc_flags |= WDF_LBA; 354 #endif 355 356 if ((wd->sc_flags & WDF_LBA48) != 0) { 357 printf(" LBA48 addressing\n"); 358 wd->sc_capacity = 359 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 360 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 361 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 362 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 363 } else if ((wd->sc_flags & WDF_LBA) != 0) { 364 printf(" LBA addressing\n"); 365 wd->sc_capacity = 366 (wd->sc_params.atap_capacity[1] << 16) | 367 wd->sc_params.atap_capacity[0]; 368 } else { 369 printf(" chs addressing\n"); 370 wd->sc_capacity = 371 wd->sc_params.atap_cylinders * 372 wd->sc_params.atap_heads * 373 wd->sc_params.atap_sectors; 374 } 375 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 376 printf("%s: %s, %d cyl, %d head, %d sec, " 377 "%d bytes/sect x %llu sectors\n", 378 self->dv_xname, pbuf, wd->sc_params.atap_cylinders, 379 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 380 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 381 382 WDCDEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 383 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 384 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 385 /* 386 * Initialize and attach the disk structure. 387 */ 388 wd->sc_dk.dk_driver = &wddkdriver; 389 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 390 disk_attach(&wd->sc_dk); 391 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 392 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 393 if (wd->sc_sdhook == NULL) 394 printf("%s: WARNING: unable to establish shutdown hook\n", 395 wd->sc_dev.dv_xname); 396 #if NRND > 0 397 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 398 RND_TYPE_DISK, 0); 399 #endif 400 } 401 402 int 403 wdactivate(self, act) 404 struct device *self; 405 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(self, flags) 425 struct device *self; 426 int flags; 427 { 428 struct wd_softc *sc = (struct wd_softc *)self; 429 struct buf *bp; 430 int s, bmaj, cmaj, i, mn; 431 432 /* Clean out the bad sector list */ 433 while (!SLIST_EMPTY(&sc->sc_bslist)) { 434 void *head = SLIST_FIRST(&sc->sc_bslist); 435 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 436 free(head, M_TEMP); 437 } 438 sc->sc_bscount = 0; 439 440 /* locate the major number */ 441 bmaj = bdevsw_lookup_major(&wd_bdevsw); 442 cmaj = cdevsw_lookup_major(&wd_cdevsw); 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); 455 456 splx(s); 457 458 /* Nuke the vnodes for any open instances. */ 459 for (i = 0; i < MAXPARTITIONS; i++) { 460 mn = WDMINOR(self->dv_unit, i); 461 vdevgone(bmaj, mn, mn, VBLK); 462 vdevgone(cmaj, mn, mn, VCHR); 463 } 464 465 /* Detach disk. */ 466 disk_detach(&sc->sc_dk); 467 468 /* Get rid of the shutdown hook. */ 469 if (sc->sc_sdhook != NULL) 470 shutdownhook_disestablish(sc->sc_sdhook); 471 472 #if NRND > 0 473 /* Unhook the entropy source. */ 474 rnd_detach_source(&sc->rnd_source); 475 #endif 476 477 return (0); 478 } 479 480 /* 481 * Read/write routine for a buffer. Validates the arguments and schedules the 482 * transfer. Does not wait for the transfer to complete. 483 */ 484 void 485 wdstrategy(bp) 486 struct buf *bp; 487 { 488 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 489 struct disklabel *lp = wd->sc_dk.dk_label; 490 daddr_t blkno; 491 int s; 492 493 WDCDEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 494 DEBUG_XFERS); 495 496 /* Valid request? */ 497 if (bp->b_blkno < 0 || 498 (bp->b_bcount % lp->d_secsize) != 0 || 499 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 500 bp->b_error = EINVAL; 501 goto bad; 502 } 503 504 /* If device invalidated (e.g. media change, door open), error. */ 505 if ((wd->sc_flags & WDF_LOADED) == 0) { 506 bp->b_error = EIO; 507 goto bad; 508 } 509 510 /* If it's a null transfer, return immediately. */ 511 if (bp->b_bcount == 0) 512 goto done; 513 514 /* 515 * Do bounds checking, adjust transfer. if error, process. 516 * If end of partition, just return. 517 */ 518 if (WDPART(bp->b_dev) == RAW_PART) { 519 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 520 wd->sc_capacity) <= 0) 521 goto done; 522 } else { 523 if (bounds_check_with_label(bp, wd->sc_dk.dk_label, 524 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 525 goto done; 526 } 527 528 /* 529 * Now convert the block number to absolute and put it in 530 * terms of the device's logical block size. 531 */ 532 if (lp->d_secsize >= DEV_BSIZE) 533 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 534 else 535 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 536 537 if (WDPART(bp->b_dev) != RAW_PART) 538 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 539 540 bp->b_rawblkno = blkno; 541 542 /* 543 * If the transfer about to be attempted contains only a block that 544 * is known to be bad then return an error for the transfer without 545 * even attempting to start a transfer up under the premis that we 546 * will just end up doing more retries for a transfer that will end 547 * up failing again. 548 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 549 */ 550 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 551 struct disk_badsectors *dbs; 552 daddr_t maxblk = blkno + (bp->b_bcount / DEV_BSIZE) - 1; 553 554 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 555 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 556 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 557 bp->b_error = EIO; 558 goto bad; 559 } 560 } 561 562 /* Queue transfer on drive, activate drive and controller if idle. */ 563 s = splbio(); 564 BUFQ_PUT(&wd->sc_q, bp); 565 wdstart(wd); 566 splx(s); 567 return; 568 bad: 569 bp->b_flags |= B_ERROR; 570 done: 571 /* Toss transfer; we're done early. */ 572 bp->b_resid = bp->b_bcount; 573 biodone(bp); 574 } 575 576 /* 577 * Queue a drive for I/O. 578 */ 579 void 580 wdstart(arg) 581 void *arg; 582 { 583 struct wd_softc *wd = arg; 584 struct buf *bp = NULL; 585 586 WDCDEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 587 DEBUG_XFERS); 588 while (wd->openings > 0) { 589 590 /* Is there a buf for us ? */ 591 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 592 return; 593 594 /* 595 * Make the command. First lock the device 596 */ 597 wd->openings--; 598 599 wd->retries = 0; 600 __wdstart(wd, bp); 601 } 602 } 603 604 static void 605 wd_split_mod15_write(struct buf *bp) 606 { 607 struct buf *obp = bp->b_private; 608 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 609 610 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 611 /* 612 * Propagate the error. If this was the first half of 613 * the original transfer, make sure to account for that 614 * in the residual. 615 */ 616 if (bp->b_data == obp->b_data) 617 bp->b_resid += bp->b_bcount; 618 goto done; 619 } 620 621 /* 622 * If this was the second half of the transfer, we're all done! 623 */ 624 if (bp->b_data != obp->b_data) 625 goto done; 626 627 /* 628 * Advance the pointer to the second half and issue that command 629 * using the same opening. 630 */ 631 bp->b_flags = obp->b_flags | B_CALL; 632 bp->b_data += bp->b_bcount; 633 bp->b_blkno += (bp->b_bcount / 512); 634 bp->b_rawblkno += (bp->b_bcount / 512); 635 __wdstart(sc, bp); 636 return; 637 638 done: 639 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 640 obp->b_error = bp->b_error; 641 obp->b_resid = bp->b_resid; 642 pool_put(&bufpool, bp); 643 biodone(obp); 644 sc->openings++; 645 /* wddone() will call wdstart() */ 646 } 647 648 void 649 __wdstart(wd, bp) 650 struct wd_softc *wd; 651 struct buf *bp; 652 { 653 654 /* 655 * Deal with the "split mod15 write" quirk. We just divide the 656 * transfer in two, doing the first half and then then second half 657 * with the same command opening. 658 * 659 * Note we MUST do this here, because we can't let insertion 660 * into the bufq cause the transfers to be re-merged. 661 */ 662 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 663 (bp->b_flags & B_READ) == 0 && 664 bp->b_bcount > 512 && 665 ((bp->b_bcount / 512) % 15) == 1)) { 666 struct buf *nbp; 667 668 /* already at splbio */ 669 nbp = pool_get(&bufpool, PR_NOWAIT); 670 if (__predict_false(nbp == NULL)) { 671 /* No memory -- fail the iop. */ 672 bp->b_error = ENOMEM; 673 bp->b_flags |= B_ERROR; 674 bp->b_resid = bp->b_bcount; 675 biodone(bp); 676 wd->openings++; 677 return; 678 } 679 680 BUF_INIT(nbp); 681 nbp->b_error = 0; 682 nbp->b_proc = bp->b_proc; 683 nbp->b_vp = NULLVP; 684 nbp->b_dev = bp->b_dev; 685 686 nbp->b_bcount = bp->b_bcount / 2; 687 nbp->b_bufsize = bp->b_bcount / 2; 688 nbp->b_data = bp->b_data; 689 690 nbp->b_blkno = bp->b_blkno; 691 nbp->b_rawblkno = bp->b_rawblkno; 692 693 nbp->b_flags = bp->b_flags | B_CALL; 694 nbp->b_iodone = wd_split_mod15_write; 695 696 /* Put ptr to orig buf in b_private and use new buf */ 697 nbp->b_private = bp; 698 bp = nbp; 699 } 700 701 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 702 wd->sc_wdc_bio.blkdone =0; 703 wd->sc_bp = bp; 704 /* 705 * If we're retrying, retry in single-sector mode. This will give us 706 * the sector number of the problem, and will eventually allow the 707 * transfer to succeed. 708 */ 709 if (wd->sc_multi == 1 || wd->retries >= WDIORETRIES_SINGLE) 710 wd->sc_wdc_bio.flags = ATA_SINGLE; 711 else 712 wd->sc_wdc_bio.flags = 0; 713 if (wd->sc_flags & WDF_LBA48) 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(v) 737 void *v; 738 { 739 struct wd_softc *wd = v; 740 struct buf *bp = wd->sc_bp; 741 const char *errmsg; 742 int do_perror = 0; 743 WDCDEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 744 DEBUG_XFERS); 745 746 if (bp == NULL) 747 return; 748 bp->b_resid = wd->sc_wdc_bio.bcount; 749 switch (wd->sc_wdc_bio.error) { 750 case ERR_DMA: 751 errmsg = "DMA error"; 752 goto retry; 753 case ERR_DF: 754 errmsg = "device fault"; 755 goto retry; 756 case TIMEOUT: 757 errmsg = "device timeout"; 758 goto retry; 759 case ERROR: 760 /* Don't care about media change bits */ 761 if (wd->sc_wdc_bio.r_error != 0 && 762 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 763 goto noerror; 764 errmsg = "error"; 765 do_perror = 1; 766 retry: /* Just reset and retry. Can we do more ? */ 767 wd->atabus->ata_reset_channel(wd->drvp); 768 diskerr(bp, "wd", errmsg, LOG_PRINTF, 769 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 770 if (wd->retries < WDIORETRIES) 771 printf(", retrying\n"); 772 if (do_perror) 773 wdperror(wd); 774 if (wd->retries < WDIORETRIES) { 775 wd->retries++; 776 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 777 wdrestart, wd); 778 return; 779 } 780 printf("\n"); 781 782 /* 783 * Not all errors indicate a failed block but those that do, 784 * put the block on the bad-block list for the device. Only 785 * do this for reads because the drive should do it for writes, 786 * itself, according to Manuel. 787 */ 788 if ((bp->b_flags & B_READ) && 789 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 790 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 791 struct disk_badsectors *dbs; 792 793 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 794 dbs->dbs_min = bp->b_rawblkno; 795 dbs->dbs_max = dbs->dbs_min + bp->b_bcount - 1; 796 microtime(&dbs->dbs_failedat); 797 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 798 wd->sc_bscount++; 799 } 800 801 bp->b_flags |= B_ERROR; 802 bp->b_error = EIO; 803 break; 804 case NOERROR: 805 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 806 printf("%s: soft error (corrected)\n", 807 wd->sc_dev.dv_xname); 808 break; 809 case ERR_NODEV: 810 bp->b_flags |= B_ERROR; 811 bp->b_error = EIO; 812 break; 813 } 814 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 815 (bp->b_flags & B_READ)); 816 #if NRND > 0 817 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 818 #endif 819 /* XXX Yuck, but we don't want to increment openings in this case */ 820 if (__predict_false((bp->b_flags & B_CALL) != 0 && 821 bp->b_iodone == wd_split_mod15_write)) 822 biodone(bp); 823 else { 824 biodone(bp); 825 wd->openings++; 826 } 827 wdstart(wd); 828 } 829 830 void 831 wdrestart(v) 832 void *v; 833 { 834 struct wd_softc *wd = v; 835 struct buf *bp = wd->sc_bp; 836 int s; 837 WDCDEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 838 DEBUG_XFERS); 839 840 s = splbio(); 841 __wdstart(v, bp); 842 splx(s); 843 } 844 845 int 846 wdread(dev, uio, flags) 847 dev_t dev; 848 struct uio *uio; 849 int flags; 850 { 851 852 WDCDEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 853 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 854 } 855 856 int 857 wdwrite(dev, uio, flags) 858 dev_t dev; 859 struct uio *uio; 860 int flags; 861 { 862 863 WDCDEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 864 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 865 } 866 867 /* 868 * Wait interruptibly for an exclusive lock. 869 * 870 * XXX 871 * Several drivers do this; it should be abstracted and made MP-safe. 872 */ 873 int 874 wdlock(wd) 875 struct wd_softc *wd; 876 { 877 int error; 878 int s; 879 880 WDCDEBUG_PRINT(("wdlock\n"), DEBUG_FUNCS); 881 882 s = splbio(); 883 884 while ((wd->sc_flags & WDF_LOCKED) != 0) { 885 wd->sc_flags |= WDF_WANTED; 886 if ((error = tsleep(wd, PRIBIO | PCATCH, 887 "wdlck", 0)) != 0) { 888 splx(s); 889 return error; 890 } 891 } 892 wd->sc_flags |= WDF_LOCKED; 893 splx(s); 894 return 0; 895 } 896 897 /* 898 * Unlock and wake up any waiters. 899 */ 900 void 901 wdunlock(wd) 902 struct wd_softc *wd; 903 { 904 905 WDCDEBUG_PRINT(("wdunlock\n"), DEBUG_FUNCS); 906 907 wd->sc_flags &= ~WDF_LOCKED; 908 if ((wd->sc_flags & WDF_WANTED) != 0) { 909 wd->sc_flags &= ~WDF_WANTED; 910 wakeup(wd); 911 } 912 } 913 914 int 915 wdopen(dev, flag, fmt, p) 916 dev_t dev; 917 int flag, fmt; 918 struct proc *p; 919 { 920 struct wd_softc *wd; 921 int part, error; 922 923 WDCDEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 924 wd = device_lookup(&wd_cd, WDUNIT(dev)); 925 if (wd == NULL) 926 return (ENXIO); 927 928 /* 929 * If this is the first open of this device, add a reference 930 * to the adapter. 931 */ 932 if (wd->sc_dk.dk_openmask == 0 && 933 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 934 return (error); 935 936 if ((error = wdlock(wd)) != 0) 937 goto bad4; 938 939 if (wd->sc_dk.dk_openmask != 0) { 940 /* 941 * If any partition is open, but the disk has been invalidated, 942 * disallow further opens. 943 */ 944 if ((wd->sc_flags & WDF_LOADED) == 0) { 945 error = EIO; 946 goto bad3; 947 } 948 } else { 949 if ((wd->sc_flags & WDF_LOADED) == 0) { 950 wd->sc_flags |= WDF_LOADED; 951 952 /* Load the physical device parameters. */ 953 wd_get_params(wd, AT_WAIT, &wd->sc_params); 954 955 /* Load the partition info if not already loaded. */ 956 wdgetdisklabel(wd); 957 } 958 } 959 960 part = WDPART(dev); 961 962 /* Check that the partition exists. */ 963 if (part != RAW_PART && 964 (part >= wd->sc_dk.dk_label->d_npartitions || 965 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 966 error = ENXIO; 967 goto bad; 968 } 969 970 /* Insure only one open at a time. */ 971 switch (fmt) { 972 case S_IFCHR: 973 wd->sc_dk.dk_copenmask |= (1 << part); 974 break; 975 case S_IFBLK: 976 wd->sc_dk.dk_bopenmask |= (1 << part); 977 break; 978 } 979 wd->sc_dk.dk_openmask = 980 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 981 982 wdunlock(wd); 983 return 0; 984 985 bad: 986 if (wd->sc_dk.dk_openmask == 0) { 987 } 988 989 bad3: 990 wdunlock(wd); 991 bad4: 992 if (wd->sc_dk.dk_openmask == 0) 993 wd->atabus->ata_delref(wd->drvp); 994 return error; 995 } 996 997 int 998 wdclose(dev, flag, fmt, p) 999 dev_t dev; 1000 int flag, fmt; 1001 struct proc *p; 1002 { 1003 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1004 int part = WDPART(dev); 1005 int error; 1006 1007 WDCDEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1008 if ((error = wdlock(wd)) != 0) 1009 return error; 1010 1011 switch (fmt) { 1012 case S_IFCHR: 1013 wd->sc_dk.dk_copenmask &= ~(1 << part); 1014 break; 1015 case S_IFBLK: 1016 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1017 break; 1018 } 1019 wd->sc_dk.dk_openmask = 1020 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1021 1022 if (wd->sc_dk.dk_openmask == 0) { 1023 wd_flushcache(wd, AT_WAIT); 1024 /* XXXX Must wait for I/O to complete! */ 1025 1026 if (! (wd->sc_flags & WDF_KLABEL)) 1027 wd->sc_flags &= ~WDF_LOADED; 1028 1029 wd->atabus->ata_delref(wd->drvp); 1030 } 1031 1032 wdunlock(wd); 1033 return 0; 1034 } 1035 1036 void 1037 wdgetdefaultlabel(wd, lp) 1038 struct wd_softc *wd; 1039 struct disklabel *lp; 1040 { 1041 1042 WDCDEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1043 memset(lp, 0, sizeof(struct disklabel)); 1044 1045 lp->d_secsize = DEV_BSIZE; 1046 lp->d_ntracks = wd->sc_params.atap_heads; 1047 lp->d_nsectors = wd->sc_params.atap_sectors; 1048 lp->d_ncylinders = wd->sc_params.atap_cylinders; 1049 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1050 1051 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1052 lp->d_type = DTYPE_ST506; 1053 else 1054 lp->d_type = DTYPE_ESDI; 1055 1056 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1057 strncpy(lp->d_packname, "fictitious", 16); 1058 if (wd->sc_capacity > UINT32_MAX) 1059 lp->d_secperunit = UINT32_MAX; 1060 else 1061 lp->d_secperunit = wd->sc_capacity; 1062 lp->d_rpm = 3600; 1063 lp->d_interleave = 1; 1064 lp->d_flags = 0; 1065 1066 lp->d_partitions[RAW_PART].p_offset = 0; 1067 lp->d_partitions[RAW_PART].p_size = 1068 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1069 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1070 lp->d_npartitions = RAW_PART + 1; 1071 1072 lp->d_magic = DISKMAGIC; 1073 lp->d_magic2 = DISKMAGIC; 1074 lp->d_checksum = dkcksum(lp); 1075 } 1076 1077 /* 1078 * Fabricate a default disk label, and try to read the correct one. 1079 */ 1080 void 1081 wdgetdisklabel(wd) 1082 struct wd_softc *wd; 1083 { 1084 struct disklabel *lp = wd->sc_dk.dk_label; 1085 char *errstring; 1086 1087 WDCDEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1088 1089 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1090 1091 wdgetdefaultlabel(wd, lp); 1092 1093 wd->sc_badsect[0] = -1; 1094 1095 if (wd->drvp->state > RECAL) 1096 wd->drvp->drive_flags |= DRIVE_RESET; 1097 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1098 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1099 if (errstring) { 1100 /* 1101 * This probably happened because the drive's default 1102 * geometry doesn't match the DOS geometry. We 1103 * assume the DOS geometry is now in the label and try 1104 * again. XXX This is a kluge. 1105 */ 1106 if (wd->drvp->state > RECAL) 1107 wd->drvp->drive_flags |= DRIVE_RESET; 1108 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1109 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1110 } 1111 if (errstring) { 1112 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1113 return; 1114 } 1115 1116 if (wd->drvp->state > RECAL) 1117 wd->drvp->drive_flags |= DRIVE_RESET; 1118 #ifdef HAS_BAD144_HANDLING 1119 if ((lp->d_flags & D_BADSECT) != 0) 1120 bad144intern(wd); 1121 #endif 1122 } 1123 1124 void 1125 wdperror(wd) 1126 const struct wd_softc *wd; 1127 { 1128 static const char *const errstr0_3[] = {"address mark not found", 1129 "track 0 not found", "aborted command", "media change requested", 1130 "id not found", "media changed", "uncorrectable data error", 1131 "bad block detected"}; 1132 static const char *const errstr4_5[] = { 1133 "obsolete (address mark not found)", 1134 "no media/write protected", "aborted command", 1135 "media change requested", "id not found", "media changed", 1136 "uncorrectable data error", "interface CRC error"}; 1137 const char *const *errstr; 1138 int i; 1139 char *sep = ""; 1140 1141 const char *devname = wd->sc_dev.dv_xname; 1142 struct ata_drive_datas *drvp = wd->drvp; 1143 int errno = wd->sc_wdc_bio.r_error; 1144 1145 if (drvp->ata_vers >= 4) 1146 errstr = errstr4_5; 1147 else 1148 errstr = errstr0_3; 1149 1150 printf("%s: (", devname); 1151 1152 if (errno == 0) 1153 printf("error not notified"); 1154 1155 for (i = 0; i < 8; i++) { 1156 if (errno & (1 << i)) { 1157 printf("%s%s", sep, errstr[i]); 1158 sep = ", "; 1159 } 1160 } 1161 printf(")\n"); 1162 } 1163 1164 int 1165 wdioctl(dev, xfer, addr, flag, p) 1166 dev_t dev; 1167 u_long xfer; 1168 caddr_t addr; 1169 int flag; 1170 struct proc *p; 1171 { 1172 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1173 int error = 0; 1174 #ifdef __HAVE_OLD_DISKLABEL 1175 struct disklabel *newlabel = NULL; 1176 #endif 1177 1178 WDCDEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1179 1180 if ((wd->sc_flags & WDF_LOADED) == 0) 1181 return EIO; 1182 1183 switch (xfer) { 1184 #ifdef HAS_BAD144_HANDLING 1185 case DIOCSBAD: 1186 if ((flag & FWRITE) == 0) 1187 return EBADF; 1188 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1189 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1190 bad144intern(wd); 1191 return 0; 1192 #endif 1193 1194 case DIOCBSLIST : 1195 { 1196 u_int32_t count, missing, skip; 1197 struct disk_badsecinfo dbsi; 1198 struct disk_badsectors *dbs; 1199 size_t available; 1200 caddr_t laddr; 1201 1202 dbsi = *(struct disk_badsecinfo *)addr; 1203 missing = wd->sc_bscount; 1204 count = 0; 1205 available = dbsi.dbsi_bufsize; 1206 skip = dbsi.dbsi_skip; 1207 laddr = dbsi.dbsi_buffer; 1208 1209 /* 1210 * We start this loop with the expectation that all of the 1211 * entries will be missed and decrement this counter each 1212 * time we either skip over one (already copied out) or 1213 * we actually copy it back to user space. The structs 1214 * holding the bad sector information are copied directly 1215 * back to user space whilst the summary is returned via 1216 * the struct passed in via the ioctl. 1217 */ 1218 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1219 if (skip > 0) { 1220 missing--; 1221 skip--; 1222 continue; 1223 } 1224 if (available < sizeof(*dbs)) 1225 break; 1226 available -= sizeof(*dbs); 1227 copyout(dbs, laddr, sizeof(*dbs)); 1228 laddr += sizeof(*dbs); 1229 missing--; 1230 count++; 1231 } 1232 dbsi.dbsi_left = missing; 1233 dbsi.dbsi_copied = count; 1234 *(struct disk_badsecinfo *)addr = dbsi; 1235 return 0; 1236 } 1237 1238 case DIOCBSFLUSH : 1239 /* Clean out the bad sector list */ 1240 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1241 void *head = SLIST_FIRST(&wd->sc_bslist); 1242 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1243 free(head, M_TEMP); 1244 } 1245 wd->sc_bscount = 0; 1246 return 0; 1247 1248 case DIOCGDINFO: 1249 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1250 return 0; 1251 #ifdef __HAVE_OLD_DISKLABEL 1252 case ODIOCGDINFO: 1253 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1254 if (newlabel == NULL) 1255 return EIO; 1256 *newlabel = *(wd->sc_dk.dk_label); 1257 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1258 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1259 else 1260 error = ENOTTY; 1261 free(newlabel, M_TEMP); 1262 return error; 1263 #endif 1264 1265 case DIOCGPART: 1266 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1267 ((struct partinfo *)addr)->part = 1268 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1269 return 0; 1270 1271 case DIOCWDINFO: 1272 case DIOCSDINFO: 1273 #ifdef __HAVE_OLD_DISKLABEL 1274 case ODIOCWDINFO: 1275 case ODIOCSDINFO: 1276 #endif 1277 { 1278 struct disklabel *lp; 1279 1280 if ((flag & FWRITE) == 0) 1281 return EBADF; 1282 1283 #ifdef __HAVE_OLD_DISKLABEL 1284 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1285 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1286 if (newlabel == NULL) 1287 return EIO; 1288 memset(newlabel, 0, sizeof newlabel); 1289 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1290 lp = newlabel; 1291 } else 1292 #endif 1293 lp = (struct disklabel *)addr; 1294 1295 if ((error = wdlock(wd)) != 0) 1296 goto bad; 1297 wd->sc_flags |= WDF_LABELLING; 1298 1299 error = setdisklabel(wd->sc_dk.dk_label, 1300 lp, /*wd->sc_dk.dk_openmask : */0, 1301 wd->sc_dk.dk_cpulabel); 1302 if (error == 0) { 1303 if (wd->drvp->state > RECAL) 1304 wd->drvp->drive_flags |= DRIVE_RESET; 1305 if (xfer == DIOCWDINFO 1306 #ifdef __HAVE_OLD_DISKLABEL 1307 || xfer == ODIOCWDINFO 1308 #endif 1309 ) 1310 error = writedisklabel(WDLABELDEV(dev), 1311 wdstrategy, wd->sc_dk.dk_label, 1312 wd->sc_dk.dk_cpulabel); 1313 } 1314 1315 wd->sc_flags &= ~WDF_LABELLING; 1316 wdunlock(wd); 1317 bad: 1318 #ifdef __HAVE_OLD_DISKLABEL 1319 if (newlabel != NULL) 1320 free(newlabel, M_TEMP); 1321 #endif 1322 return error; 1323 } 1324 1325 case DIOCKLABEL: 1326 if (*(int *)addr) 1327 wd->sc_flags |= WDF_KLABEL; 1328 else 1329 wd->sc_flags &= ~WDF_KLABEL; 1330 return 0; 1331 1332 case DIOCWLABEL: 1333 if ((flag & FWRITE) == 0) 1334 return EBADF; 1335 if (*(int *)addr) 1336 wd->sc_flags |= WDF_WLABEL; 1337 else 1338 wd->sc_flags &= ~WDF_WLABEL; 1339 return 0; 1340 1341 case DIOCGDEFLABEL: 1342 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1343 return 0; 1344 #ifdef __HAVE_OLD_DISKLABEL 1345 case ODIOCGDEFLABEL: 1346 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1347 if (newlabel == NULL) 1348 return EIO; 1349 wdgetdefaultlabel(wd, newlabel); 1350 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1351 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1352 else 1353 error = ENOTTY; 1354 free(newlabel, M_TEMP); 1355 return error; 1356 #endif 1357 1358 #ifdef notyet 1359 case DIOCWFORMAT: 1360 if ((flag & FWRITE) == 0) 1361 return EBADF; 1362 { 1363 register struct format_op *fop; 1364 struct iovec aiov; 1365 struct uio auio; 1366 1367 fop = (struct format_op *)addr; 1368 aiov.iov_base = fop->df_buf; 1369 aiov.iov_len = fop->df_count; 1370 auio.uio_iov = &aiov; 1371 auio.uio_iovcnt = 1; 1372 auio.uio_resid = fop->df_count; 1373 auio.uio_segflg = 0; 1374 auio.uio_offset = 1375 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1376 auio.uio_procp = p; 1377 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1378 &auio); 1379 fop->df_count -= auio.uio_resid; 1380 fop->df_reg[0] = wdc->sc_status; 1381 fop->df_reg[1] = wdc->sc_error; 1382 return error; 1383 } 1384 #endif 1385 case DIOCGCACHE: 1386 return wd_getcache(wd, (int *)addr); 1387 1388 case DIOCSCACHE: 1389 return wd_setcache(wd, *(int *)addr); 1390 1391 case ATAIOCCOMMAND: 1392 /* 1393 * Make sure this command is (relatively) safe first 1394 */ 1395 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1396 (flag & FWRITE) == 0) 1397 return (EBADF); 1398 { 1399 struct wd_ioctl *wi; 1400 atareq_t *atareq = (atareq_t *) addr; 1401 int error; 1402 1403 wi = wi_get(); 1404 wi->wi_softc = wd; 1405 wi->wi_atareq = *atareq; 1406 1407 if (atareq->datalen && atareq->flags & 1408 (ATACMD_READ | ATACMD_WRITE)) { 1409 wi->wi_iov.iov_base = atareq->databuf; 1410 wi->wi_iov.iov_len = atareq->datalen; 1411 wi->wi_uio.uio_iov = &wi->wi_iov; 1412 wi->wi_uio.uio_iovcnt = 1; 1413 wi->wi_uio.uio_resid = atareq->datalen; 1414 wi->wi_uio.uio_offset = 0; 1415 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1416 wi->wi_uio.uio_rw = 1417 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1418 wi->wi_uio.uio_procp = p; 1419 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1420 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1421 minphys, &wi->wi_uio); 1422 } else { 1423 /* No need to call physio if we don't have any 1424 user data */ 1425 wi->wi_bp.b_flags = 0; 1426 wi->wi_bp.b_data = 0; 1427 wi->wi_bp.b_bcount = 0; 1428 wi->wi_bp.b_dev = 0; 1429 wi->wi_bp.b_proc = p; 1430 wdioctlstrategy(&wi->wi_bp); 1431 error = wi->wi_bp.b_error; 1432 } 1433 *atareq = wi->wi_atareq; 1434 wi_free(wi); 1435 return(error); 1436 } 1437 1438 default: 1439 return ENOTTY; 1440 } 1441 1442 #ifdef DIAGNOSTIC 1443 panic("wdioctl: impossible"); 1444 #endif 1445 } 1446 1447 #ifdef B_FORMAT 1448 int 1449 wdformat(struct buf *bp) 1450 { 1451 1452 bp->b_flags |= B_FORMAT; 1453 return wdstrategy(bp); 1454 } 1455 #endif 1456 1457 int 1458 wdsize(dev) 1459 dev_t dev; 1460 { 1461 struct wd_softc *wd; 1462 int part, omask; 1463 int size; 1464 1465 WDCDEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1466 1467 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1468 if (wd == NULL) 1469 return (-1); 1470 1471 part = WDPART(dev); 1472 omask = wd->sc_dk.dk_openmask & (1 << part); 1473 1474 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1475 return (-1); 1476 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1477 size = -1; 1478 else 1479 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1480 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1481 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1482 return (-1); 1483 return (size); 1484 } 1485 1486 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1487 static int wddoingadump = 0; 1488 static int wddumprecalibrated = 0; 1489 static int wddumpmulti = 1; 1490 1491 /* 1492 * Dump core after a system crash. 1493 */ 1494 int 1495 wddump(dev, blkno, va, size) 1496 dev_t dev; 1497 daddr_t blkno; 1498 caddr_t va; 1499 size_t size; 1500 { 1501 struct wd_softc *wd; /* disk unit to do the I/O */ 1502 struct disklabel *lp; /* disk's disklabel */ 1503 int part, err; 1504 int nblks; /* total number of sectors left to write */ 1505 1506 /* Check if recursive dump; if so, punt. */ 1507 if (wddoingadump) 1508 return EFAULT; 1509 wddoingadump = 1; 1510 1511 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1512 if (wd == NULL) 1513 return (ENXIO); 1514 1515 part = WDPART(dev); 1516 1517 /* Convert to disk sectors. Request must be a multiple of size. */ 1518 lp = wd->sc_dk.dk_label; 1519 if ((size % lp->d_secsize) != 0) 1520 return EFAULT; 1521 nblks = size / lp->d_secsize; 1522 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1523 1524 /* Check transfer bounds against partition size. */ 1525 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1526 return EINVAL; 1527 1528 /* Offset block number to start of partition. */ 1529 blkno += lp->d_partitions[part].p_offset; 1530 1531 /* Recalibrate, if first dump transfer. */ 1532 if (wddumprecalibrated == 0) { 1533 wddumpmulti = wd->sc_multi; 1534 wddumprecalibrated = 1; 1535 wd->drvp->state = RESET; 1536 } 1537 1538 while (nblks > 0) { 1539 again: 1540 wd->sc_bp = NULL; 1541 wd->sc_wdc_bio.blkno = blkno; 1542 wd->sc_wdc_bio.flags = ATA_POLL; 1543 if (wddumpmulti == 1) 1544 wd->sc_wdc_bio.flags |= ATA_SINGLE; 1545 if (wd->sc_flags & WDF_LBA48) 1546 wd->sc_wdc_bio.flags |= ATA_LBA48; 1547 if (wd->sc_flags & WDF_LBA) 1548 wd->sc_wdc_bio.flags |= ATA_LBA; 1549 wd->sc_wdc_bio.bcount = 1550 min(nblks, wddumpmulti) * lp->d_secsize; 1551 wd->sc_wdc_bio.databuf = va; 1552 #ifndef WD_DUMP_NOT_TRUSTED 1553 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1554 case WDC_TRY_AGAIN: 1555 panic("wddump: try again"); 1556 break; 1557 case WDC_QUEUED: 1558 panic("wddump: polled command has been queued"); 1559 break; 1560 case WDC_COMPLETE: 1561 break; 1562 } 1563 switch(wd->sc_wdc_bio.error) { 1564 case TIMEOUT: 1565 printf("wddump: device timed out"); 1566 err = EIO; 1567 break; 1568 case ERR_DF: 1569 printf("wddump: drive fault"); 1570 err = EIO; 1571 break; 1572 case ERR_DMA: 1573 printf("wddump: DMA error"); 1574 err = EIO; 1575 break; 1576 case ERROR: 1577 printf("wddump: "); 1578 wdperror(wd); 1579 err = EIO; 1580 break; 1581 case NOERROR: 1582 err = 0; 1583 break; 1584 default: 1585 panic("wddump: unknown error type"); 1586 } 1587 if (err != 0) { 1588 if (wddumpmulti != 1) { 1589 wddumpmulti = 1; /* retry in single-sector */ 1590 printf(", retrying\n"); 1591 goto again; 1592 } 1593 printf("\n"); 1594 return err; 1595 } 1596 #else /* WD_DUMP_NOT_TRUSTED */ 1597 /* Let's just talk about this first... */ 1598 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1599 unit, va, cylin, head, sector); 1600 delay(500 * 1000); /* half a second */ 1601 #endif 1602 1603 /* update block count */ 1604 nblks -= min(nblks, wddumpmulti); 1605 blkno += min(nblks, wddumpmulti); 1606 va += min(nblks, wddumpmulti) * lp->d_secsize; 1607 } 1608 1609 wddoingadump = 0; 1610 return 0; 1611 } 1612 1613 #ifdef HAS_BAD144_HANDLING 1614 /* 1615 * Internalize the bad sector table. 1616 */ 1617 void 1618 bad144intern(wd) 1619 struct wd_softc *wd; 1620 { 1621 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1622 struct disklabel *lp = wd->sc_dk.dk_label; 1623 int i = 0; 1624 1625 WDCDEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1626 1627 for (; i < NBT_BAD; i++) { 1628 if (bt->bt_bad[i].bt_cyl == 0xffff) 1629 break; 1630 wd->sc_badsect[i] = 1631 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1632 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1633 (bt->bt_bad[i].bt_trksec & 0xff); 1634 } 1635 for (; i < NBT_BAD+1; i++) 1636 wd->sc_badsect[i] = -1; 1637 } 1638 #endif 1639 1640 int 1641 wd_get_params(wd, flags, params) 1642 struct wd_softc *wd; 1643 u_int8_t flags; 1644 struct ataparams *params; 1645 { 1646 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1647 case CMD_AGAIN: 1648 return 1; 1649 case CMD_ERR: 1650 /* 1651 * We `know' there's a drive here; just assume it's old. 1652 * This geometry is only used to read the MBR and print a 1653 * (false) attach message. 1654 */ 1655 strncpy(params->atap_model, "ST506", 1656 sizeof params->atap_model); 1657 params->atap_config = ATA_CFG_FIXED; 1658 params->atap_cylinders = 1024; 1659 params->atap_heads = 8; 1660 params->atap_sectors = 17; 1661 params->atap_multi = 1; 1662 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1663 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1664 return 0; 1665 case CMD_OK: 1666 return 0; 1667 default: 1668 panic("wd_get_params: bad return code from ata_get_params"); 1669 /* NOTREACHED */ 1670 } 1671 } 1672 1673 int 1674 wd_getcache(wd, bitsp) 1675 struct wd_softc *wd; 1676 int *bitsp; 1677 { 1678 struct ataparams params; 1679 1680 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1681 return EIO; 1682 if (params.atap_cmd_set1 == 0x0000 || 1683 params.atap_cmd_set1 == 0xffff || 1684 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1685 *bitsp = 0; 1686 return 0; 1687 } 1688 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1689 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1690 *bitsp |= DKCACHE_WRITE; 1691 1692 return 0; 1693 } 1694 1695 int 1696 wd_setcache(wd, bits) 1697 struct wd_softc *wd; 1698 int bits; 1699 { 1700 struct ataparams params; 1701 struct wdc_command wdc_c; 1702 1703 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1704 return EIO; 1705 1706 if (params.atap_cmd_set1 == 0x0000 || 1707 params.atap_cmd_set1 == 0xffff || 1708 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1709 return EOPNOTSUPP; 1710 1711 if ((bits & DKCACHE_READ) == 0 || 1712 (bits & DKCACHE_SAVE) != 0) 1713 return EOPNOTSUPP; 1714 1715 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1716 wdc_c.r_command = SET_FEATURES; 1717 wdc_c.r_st_bmask = 0; 1718 wdc_c.r_st_pmask = 0; 1719 wdc_c.timeout = 30000; /* 30s timeout */ 1720 wdc_c.flags = AT_WAIT; 1721 if (bits & DKCACHE_WRITE) 1722 wdc_c.r_precomp = WDSF_WRITE_CACHE_EN; 1723 else 1724 wdc_c.r_precomp = WDSF_WRITE_CACHE_DS; 1725 if (wd->atabus->ata_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1726 printf("%s: wd_setcache command not complete\n", 1727 wd->sc_dev.dv_xname); 1728 return EIO; 1729 } 1730 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1731 printf("%s: wd_setcache command error 0x%x\n", 1732 wd->sc_dev.dv_xname, wdc_c.flags); 1733 return EIO; 1734 } 1735 if (wdc_c.flags & ERR_NODEV) 1736 return ENODEV; 1737 return 0; 1738 } 1739 1740 void 1741 wd_flushcache(wd, flags) 1742 struct wd_softc *wd; 1743 int flags; 1744 { 1745 struct wdc_command wdc_c; 1746 1747 if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */ 1748 return; 1749 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1750 wdc_c.r_command = WDCC_FLUSHCACHE; 1751 wdc_c.r_st_bmask = WDCS_DRDY; 1752 wdc_c.r_st_pmask = WDCS_DRDY; 1753 wdc_c.flags = flags; 1754 wdc_c.timeout = 30000; /* 30s timeout */ 1755 if (wd->atabus->ata_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1756 printf("%s: flush cache command didn't complete\n", 1757 wd->sc_dev.dv_xname); 1758 } 1759 if (wdc_c.flags & AT_TIMEOU) { 1760 printf("%s: flush cache command timeout\n", 1761 wd->sc_dev.dv_xname); 1762 } 1763 if (wdc_c.flags & AT_DF) { 1764 printf("%s: flush cache command: drive fault\n", 1765 wd->sc_dev.dv_xname); 1766 } 1767 /* 1768 * Ignore error register, it shouldn't report anything else 1769 * than COMMAND ABORTED, which means the device doesn't support 1770 * flush cache 1771 */ 1772 } 1773 1774 void 1775 wd_shutdown(arg) 1776 void *arg; 1777 { 1778 struct wd_softc *wd = arg; 1779 wd_flushcache(wd, AT_POLL); 1780 } 1781 1782 /* 1783 * Allocate space for a ioctl queue structure. Mostly taken from 1784 * scsipi_ioctl.c 1785 */ 1786 struct wd_ioctl * 1787 wi_get() 1788 { 1789 struct wd_ioctl *wi; 1790 int s; 1791 1792 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1793 simple_lock_init(&wi->wi_bp.b_interlock); 1794 s = splbio(); 1795 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1796 splx(s); 1797 return (wi); 1798 } 1799 1800 /* 1801 * Free an ioctl structure and remove it from our list 1802 */ 1803 1804 void 1805 wi_free(wi) 1806 struct wd_ioctl *wi; 1807 { 1808 int s; 1809 1810 s = splbio(); 1811 LIST_REMOVE(wi, wi_list); 1812 splx(s); 1813 free(wi, M_TEMP); 1814 } 1815 1816 /* 1817 * Find a wd_ioctl structure based on the struct buf. 1818 */ 1819 1820 struct wd_ioctl * 1821 wi_find(bp) 1822 struct buf *bp; 1823 { 1824 struct wd_ioctl *wi; 1825 int s; 1826 1827 s = splbio(); 1828 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1829 if (bp == &wi->wi_bp) 1830 break; 1831 splx(s); 1832 return (wi); 1833 } 1834 1835 /* 1836 * Ioctl pseudo strategy routine 1837 * 1838 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1839 * happens here is: 1840 * 1841 * - wdioctl() queues a wd_ioctl structure. 1842 * 1843 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1844 * user space I/O is required. If physio() is called, physio() eventually 1845 * calls wdioctlstrategy(). 1846 * 1847 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1848 * to perform the actual command 1849 * 1850 * The reason for the use of the pseudo strategy routine is because 1851 * when doing I/O to/from user space, physio _really_ wants to be in 1852 * the loop. We could put the entire buffer into the ioctl request 1853 * structure, but that won't scale if we want to do things like download 1854 * microcode. 1855 */ 1856 1857 void 1858 wdioctlstrategy(bp) 1859 struct buf *bp; 1860 { 1861 struct wd_ioctl *wi; 1862 struct wdc_command wdc_c; 1863 int error = 0; 1864 1865 wi = wi_find(bp); 1866 if (wi == NULL) { 1867 printf("user_strat: No ioctl\n"); 1868 error = EINVAL; 1869 goto bad; 1870 } 1871 1872 memset(&wdc_c, 0, sizeof(wdc_c)); 1873 1874 /* 1875 * Abort if physio broke up the transfer 1876 */ 1877 1878 if (bp->b_bcount != wi->wi_atareq.datalen) { 1879 printf("physio split wd ioctl request... cannot proceed\n"); 1880 error = EIO; 1881 goto bad; 1882 } 1883 1884 /* 1885 * Abort if we didn't get a buffer size that was a multiple of 1886 * our sector size (or was larger than NBBY) 1887 */ 1888 1889 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1890 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1891 (1 << NBBY)) { 1892 error = EINVAL; 1893 goto bad; 1894 } 1895 1896 /* 1897 * Make sure a timeout was supplied in the ioctl request 1898 */ 1899 1900 if (wi->wi_atareq.timeout == 0) { 1901 error = EINVAL; 1902 goto bad; 1903 } 1904 1905 if (wi->wi_atareq.flags & ATACMD_READ) 1906 wdc_c.flags |= AT_READ; 1907 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1908 wdc_c.flags |= AT_WRITE; 1909 1910 if (wi->wi_atareq.flags & ATACMD_READREG) 1911 wdc_c.flags |= AT_READREG; 1912 1913 wdc_c.flags |= AT_WAIT; 1914 1915 wdc_c.timeout = wi->wi_atareq.timeout; 1916 wdc_c.r_command = wi->wi_atareq.command; 1917 wdc_c.r_head = wi->wi_atareq.head & 0x0f; 1918 wdc_c.r_cyl = wi->wi_atareq.cylinder; 1919 wdc_c.r_sector = wi->wi_atareq.sec_num; 1920 wdc_c.r_count = wi->wi_atareq.sec_count; 1921 wdc_c.r_precomp = wi->wi_atareq.features; 1922 wdc_c.r_st_bmask = WDCS_DRDY; 1923 wdc_c.r_st_pmask = WDCS_DRDY; 1924 wdc_c.data = wi->wi_bp.b_data; 1925 wdc_c.bcount = wi->wi_bp.b_bcount; 1926 1927 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &wdc_c) 1928 != WDC_COMPLETE) { 1929 wi->wi_atareq.retsts = ATACMD_ERROR; 1930 goto bad; 1931 } 1932 1933 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1934 if (wdc_c.flags & AT_ERROR) { 1935 wi->wi_atareq.retsts = ATACMD_ERROR; 1936 wi->wi_atareq.error = wdc_c.r_error; 1937 } else if (wdc_c.flags & AT_DF) 1938 wi->wi_atareq.retsts = ATACMD_DF; 1939 else 1940 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1941 } else { 1942 wi->wi_atareq.retsts = ATACMD_OK; 1943 if (wi->wi_atareq.flags & ATACMD_READREG) { 1944 wi->wi_atareq.head = wdc_c.r_head ; 1945 wi->wi_atareq.cylinder = wdc_c.r_cyl; 1946 wi->wi_atareq.sec_num = wdc_c.r_sector; 1947 wi->wi_atareq.sec_count = wdc_c.r_count; 1948 wi->wi_atareq.features = wdc_c.r_precomp; 1949 wi->wi_atareq.error = wdc_c.r_error; 1950 } 1951 } 1952 1953 bp->b_error = 0; 1954 biodone(bp); 1955 return; 1956 bad: 1957 bp->b_flags |= B_ERROR; 1958 bp->b_error = error; 1959 biodone(bp); 1960 } 1961
Indexes created Sun Sep 28 16:09:52 GMT 2025