wd.c revision 1.253
1 /* $NetBSD: wd.c,v 1.253 2003/05/17 21:52:03 thorpej 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 1.253 2003/05/17 21:52:03 thorpej 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 aprint_naive("\n"); 306 307 /* read our drive info */ 308 if (wd_get_params(wd, AT_POLL, &wd->sc_params) != 0) { 309 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 310 return; 311 } 312 313 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 314 i < sizeof(wd->sc_params.atap_model); i++) { 315 c = *p++; 316 if (c == '\0') 317 break; 318 if (c != ' ') { 319 if (blank) { 320 *q++ = ' '; 321 blank = 0; 322 } 323 *q++ = c; 324 } else 325 blank = 1; 326 } 327 *q++ = '\0'; 328 329 aprint_normal(": <%s>\n", buf); 330 331 wdq = wd_lookup_quirks(buf); 332 if (wdq != NULL) 333 wd->sc_quirks = wdq->wdq_quirks; 334 335 if ((wd->sc_params.atap_multi & 0xff) > 1) { 336 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 337 } else { 338 wd->sc_multi = 1; 339 } 340 341 aprint_normal("%s: drive supports %d-sector PIO transfers,", 342 wd->sc_dev.dv_xname, wd->sc_multi); 343 344 /* 48-bit LBA addressing */ 345 if ((wd->sc_params.atap_cmd2_en & WDC_CAP_LBA48) != 0) 346 wd->sc_flags |= WDF_LBA48; 347 348 /* Prior to ATA-4, LBA was optional. */ 349 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 350 wd->sc_flags |= WDF_LBA; 351 #if 0 352 /* ATA-4 requires LBA. */ 353 if (wd->sc_params.atap_ataversion != 0xffff && 354 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 355 wd->sc_flags |= WDF_LBA; 356 #endif 357 358 if ((wd->sc_flags & WDF_LBA48) != 0) { 359 aprint_normal(" LBA48 addressing\n"); 360 wd->sc_capacity = 361 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 362 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 363 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 364 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 365 } else if ((wd->sc_flags & WDF_LBA) != 0) { 366 aprint_normal(" LBA addressing\n"); 367 wd->sc_capacity = 368 (wd->sc_params.atap_capacity[1] << 16) | 369 wd->sc_params.atap_capacity[0]; 370 } else { 371 aprint_normal(" chs addressing\n"); 372 wd->sc_capacity = 373 wd->sc_params.atap_cylinders * 374 wd->sc_params.atap_heads * 375 wd->sc_params.atap_sectors; 376 } 377 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 378 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 379 "%d bytes/sect x %llu sectors\n", 380 self->dv_xname, pbuf, wd->sc_params.atap_cylinders, 381 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 382 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 383 384 WDCDEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 385 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 386 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 387 /* 388 * Initialize and attach the disk structure. 389 */ 390 wd->sc_dk.dk_driver = &wddkdriver; 391 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 392 disk_attach(&wd->sc_dk); 393 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 394 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 395 if (wd->sc_sdhook == NULL) 396 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 397 wd->sc_dev.dv_xname); 398 #if NRND > 0 399 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 400 RND_TYPE_DISK, 0); 401 #endif 402 } 403 404 int 405 wdactivate(self, act) 406 struct device *self; 407 enum devact act; 408 { 409 int rv = 0; 410 411 switch (act) { 412 case DVACT_ACTIVATE: 413 rv = EOPNOTSUPP; 414 break; 415 416 case DVACT_DEACTIVATE: 417 /* 418 * Nothing to do; we key off the device's DVF_ACTIVATE. 419 */ 420 break; 421 } 422 return (rv); 423 } 424 425 int 426 wddetach(self, flags) 427 struct device *self; 428 int flags; 429 { 430 struct wd_softc *sc = (struct wd_softc *)self; 431 struct buf *bp; 432 int s, bmaj, cmaj, i, mn; 433 434 /* Clean out the bad sector list */ 435 while (!SLIST_EMPTY(&sc->sc_bslist)) { 436 void *head = SLIST_FIRST(&sc->sc_bslist); 437 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 438 free(head, M_TEMP); 439 } 440 sc->sc_bscount = 0; 441 442 /* locate the major number */ 443 bmaj = bdevsw_lookup_major(&wd_bdevsw); 444 cmaj = cdevsw_lookup_major(&wd_cdevsw); 445 446 s = splbio(); 447 448 /* Kill off any queued buffers. */ 449 while ((bp = BUFQ_GET(&sc->sc_q)) != NULL) { 450 bp->b_error = EIO; 451 bp->b_flags |= B_ERROR; 452 bp->b_resid = bp->b_bcount; 453 biodone(bp); 454 } 455 456 bufq_free(&sc->sc_q); 457 458 splx(s); 459 460 /* Nuke the vnodes for any open instances. */ 461 for (i = 0; i < MAXPARTITIONS; i++) { 462 mn = WDMINOR(self->dv_unit, i); 463 vdevgone(bmaj, mn, mn, VBLK); 464 vdevgone(cmaj, mn, mn, VCHR); 465 } 466 467 /* Detach disk. */ 468 disk_detach(&sc->sc_dk); 469 470 /* Get rid of the shutdown hook. */ 471 if (sc->sc_sdhook != NULL) 472 shutdownhook_disestablish(sc->sc_sdhook); 473 474 #if NRND > 0 475 /* Unhook the entropy source. */ 476 rnd_detach_source(&sc->rnd_source); 477 #endif 478 479 return (0); 480 } 481 482 /* 483 * Read/write routine for a buffer. Validates the arguments and schedules the 484 * transfer. Does not wait for the transfer to complete. 485 */ 486 void 487 wdstrategy(bp) 488 struct buf *bp; 489 { 490 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 491 struct disklabel *lp = wd->sc_dk.dk_label; 492 daddr_t blkno; 493 int s; 494 495 WDCDEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 496 DEBUG_XFERS); 497 498 /* Valid request? */ 499 if (bp->b_blkno < 0 || 500 (bp->b_bcount % lp->d_secsize) != 0 || 501 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 502 bp->b_error = EINVAL; 503 goto bad; 504 } 505 506 /* If device invalidated (e.g. media change, door open), error. */ 507 if ((wd->sc_flags & WDF_LOADED) == 0) { 508 bp->b_error = EIO; 509 goto bad; 510 } 511 512 /* If it's a null transfer, return immediately. */ 513 if (bp->b_bcount == 0) 514 goto done; 515 516 /* 517 * Do bounds checking, adjust transfer. if error, process. 518 * If end of partition, just return. 519 */ 520 if (WDPART(bp->b_dev) == RAW_PART) { 521 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 522 wd->sc_capacity) <= 0) 523 goto done; 524 } else { 525 if (bounds_check_with_label(&wd->sc_dk, bp, 526 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 527 goto done; 528 } 529 530 /* 531 * Now convert the block number to absolute and put it in 532 * terms of the device's logical block size. 533 */ 534 if (lp->d_secsize >= DEV_BSIZE) 535 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 536 else 537 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 538 539 if (WDPART(bp->b_dev) != RAW_PART) 540 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 541 542 bp->b_rawblkno = blkno; 543 544 /* 545 * If the transfer about to be attempted contains only a block that 546 * is known to be bad then return an error for the transfer without 547 * even attempting to start a transfer up under the premis that we 548 * will just end up doing more retries for a transfer that will end 549 * up failing again. 550 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 551 */ 552 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 553 struct disk_badsectors *dbs; 554 daddr_t maxblk = blkno + (bp->b_bcount / DEV_BSIZE) - 1; 555 556 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 557 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 558 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 559 bp->b_error = EIO; 560 goto bad; 561 } 562 } 563 564 /* Queue transfer on drive, activate drive and controller if idle. */ 565 s = splbio(); 566 BUFQ_PUT(&wd->sc_q, bp); 567 wdstart(wd); 568 splx(s); 569 return; 570 bad: 571 bp->b_flags |= B_ERROR; 572 done: 573 /* Toss transfer; we're done early. */ 574 bp->b_resid = bp->b_bcount; 575 biodone(bp); 576 } 577 578 /* 579 * Queue a drive for I/O. 580 */ 581 void 582 wdstart(arg) 583 void *arg; 584 { 585 struct wd_softc *wd = arg; 586 struct buf *bp = NULL; 587 588 WDCDEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 589 DEBUG_XFERS); 590 while (wd->openings > 0) { 591 592 /* Is there a buf for us ? */ 593 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 594 return; 595 596 /* 597 * Make the command. First lock the device 598 */ 599 wd->openings--; 600 601 wd->retries = 0; 602 __wdstart(wd, bp); 603 } 604 } 605 606 static void 607 wd_split_mod15_write(struct buf *bp) 608 { 609 struct buf *obp = bp->b_private; 610 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 611 612 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 613 /* 614 * Propagate the error. If this was the first half of 615 * the original transfer, make sure to account for that 616 * in the residual. 617 */ 618 if (bp->b_data == obp->b_data) 619 bp->b_resid += bp->b_bcount; 620 goto done; 621 } 622 623 /* 624 * If this was the second half of the transfer, we're all done! 625 */ 626 if (bp->b_data != obp->b_data) 627 goto done; 628 629 /* 630 * Advance the pointer to the second half and issue that command 631 * using the same opening. 632 */ 633 bp->b_flags = obp->b_flags | B_CALL; 634 bp->b_data += bp->b_bcount; 635 bp->b_blkno += (bp->b_bcount / 512); 636 bp->b_rawblkno += (bp->b_bcount / 512); 637 __wdstart(sc, bp); 638 return; 639 640 done: 641 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 642 obp->b_error = bp->b_error; 643 obp->b_resid = bp->b_resid; 644 pool_put(&bufpool, bp); 645 biodone(obp); 646 sc->openings++; 647 /* wddone() will call wdstart() */ 648 } 649 650 void 651 __wdstart(wd, bp) 652 struct wd_softc *wd; 653 struct buf *bp; 654 { 655 656 /* 657 * Deal with the "split mod15 write" quirk. We just divide the 658 * transfer in two, doing the first half and then then second half 659 * with the same command opening. 660 * 661 * Note we MUST do this here, because we can't let insertion 662 * into the bufq cause the transfers to be re-merged. 663 */ 664 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 665 (bp->b_flags & B_READ) == 0 && 666 bp->b_bcount > 512 && 667 ((bp->b_bcount / 512) % 15) == 1)) { 668 struct buf *nbp; 669 670 /* already at splbio */ 671 nbp = pool_get(&bufpool, PR_NOWAIT); 672 if (__predict_false(nbp == NULL)) { 673 /* No memory -- fail the iop. */ 674 bp->b_error = ENOMEM; 675 bp->b_flags |= B_ERROR; 676 bp->b_resid = bp->b_bcount; 677 biodone(bp); 678 wd->openings++; 679 return; 680 } 681 682 BUF_INIT(nbp); 683 nbp->b_error = 0; 684 nbp->b_proc = bp->b_proc; 685 nbp->b_vp = NULLVP; 686 nbp->b_dev = bp->b_dev; 687 688 nbp->b_bcount = bp->b_bcount / 2; 689 nbp->b_bufsize = bp->b_bcount / 2; 690 nbp->b_data = bp->b_data; 691 692 nbp->b_blkno = bp->b_blkno; 693 nbp->b_rawblkno = bp->b_rawblkno; 694 695 nbp->b_flags = bp->b_flags | B_CALL; 696 nbp->b_iodone = wd_split_mod15_write; 697 698 /* Put ptr to orig buf in b_private and use new buf */ 699 nbp->b_private = bp; 700 bp = nbp; 701 } 702 703 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 704 wd->sc_wdc_bio.blkdone =0; 705 wd->sc_bp = bp; 706 /* 707 * If we're retrying, retry in single-sector mode. This will give us 708 * the sector number of the problem, and will eventually allow the 709 * transfer to succeed. 710 */ 711 if (wd->sc_multi == 1 || wd->retries >= WDIORETRIES_SINGLE) 712 wd->sc_wdc_bio.flags = ATA_SINGLE; 713 else 714 wd->sc_wdc_bio.flags = 0; 715 if (wd->sc_flags & WDF_LBA48) 716 wd->sc_wdc_bio.flags |= ATA_LBA48; 717 if (wd->sc_flags & WDF_LBA) 718 wd->sc_wdc_bio.flags |= ATA_LBA; 719 if (bp->b_flags & B_READ) 720 wd->sc_wdc_bio.flags |= ATA_READ; 721 wd->sc_wdc_bio.bcount = bp->b_bcount; 722 wd->sc_wdc_bio.databuf = bp->b_data; 723 /* Instrumentation. */ 724 disk_busy(&wd->sc_dk); 725 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 726 case WDC_TRY_AGAIN: 727 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 728 break; 729 case WDC_QUEUED: 730 case WDC_COMPLETE: 731 break; 732 default: 733 panic("__wdstart: bad return code from ata_bio()"); 734 } 735 } 736 737 void 738 wddone(v) 739 void *v; 740 { 741 struct wd_softc *wd = v; 742 struct buf *bp = wd->sc_bp; 743 const char *errmsg; 744 int do_perror = 0; 745 WDCDEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 746 DEBUG_XFERS); 747 748 if (bp == NULL) 749 return; 750 bp->b_resid = wd->sc_wdc_bio.bcount; 751 switch (wd->sc_wdc_bio.error) { 752 case ERR_DMA: 753 errmsg = "DMA error"; 754 goto retry; 755 case ERR_DF: 756 errmsg = "device fault"; 757 goto retry; 758 case TIMEOUT: 759 errmsg = "device timeout"; 760 goto retry; 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); 770 diskerr(bp, "wd", errmsg, LOG_PRINTF, 771 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 772 if (wd->retries < WDIORETRIES) 773 printf(", retrying\n"); 774 if (do_perror) 775 wdperror(wd); 776 if (wd->retries < WDIORETRIES) { 777 wd->retries++; 778 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 779 wdrestart, wd); 780 return; 781 } 782 printf("\n"); 783 784 /* 785 * Not all errors indicate a failed block but those that do, 786 * put the block on the bad-block list for the device. Only 787 * do this for reads because the drive should do it for writes, 788 * itself, according to Manuel. 789 */ 790 if ((bp->b_flags & B_READ) && 791 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 792 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 793 struct disk_badsectors *dbs; 794 795 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 796 dbs->dbs_min = bp->b_rawblkno; 797 dbs->dbs_max = dbs->dbs_min + bp->b_bcount - 1; 798 microtime(&dbs->dbs_failedat); 799 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 800 wd->sc_bscount++; 801 } 802 803 bp->b_flags |= B_ERROR; 804 bp->b_error = EIO; 805 break; 806 case NOERROR: 807 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 808 printf("%s: soft error (corrected)\n", 809 wd->sc_dev.dv_xname); 810 break; 811 case ERR_NODEV: 812 bp->b_flags |= B_ERROR; 813 bp->b_error = EIO; 814 break; 815 } 816 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 817 (bp->b_flags & B_READ)); 818 #if NRND > 0 819 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 820 #endif 821 /* XXX Yuck, but we don't want to increment openings in this case */ 822 if (__predict_false((bp->b_flags & B_CALL) != 0 && 823 bp->b_iodone == wd_split_mod15_write)) 824 biodone(bp); 825 else { 826 biodone(bp); 827 wd->openings++; 828 } 829 wdstart(wd); 830 } 831 832 void 833 wdrestart(v) 834 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, uio, flags) 849 dev_t dev; 850 struct uio *uio; 851 int flags; 852 { 853 854 WDCDEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 855 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 856 } 857 858 int 859 wdwrite(dev, uio, flags) 860 dev_t dev; 861 struct uio *uio; 862 int flags; 863 { 864 865 WDCDEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 866 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 867 } 868 869 /* 870 * Wait interruptibly for an exclusive lock. 871 * 872 * XXX 873 * Several drivers do this; it should be abstracted and made MP-safe. 874 */ 875 int 876 wdlock(wd) 877 struct wd_softc *wd; 878 { 879 int error; 880 int s; 881 882 WDCDEBUG_PRINT(("wdlock\n"), DEBUG_FUNCS); 883 884 s = splbio(); 885 886 while ((wd->sc_flags & WDF_LOCKED) != 0) { 887 wd->sc_flags |= WDF_WANTED; 888 if ((error = tsleep(wd, PRIBIO | PCATCH, 889 "wdlck", 0)) != 0) { 890 splx(s); 891 return error; 892 } 893 } 894 wd->sc_flags |= WDF_LOCKED; 895 splx(s); 896 return 0; 897 } 898 899 /* 900 * Unlock and wake up any waiters. 901 */ 902 void 903 wdunlock(wd) 904 struct wd_softc *wd; 905 { 906 907 WDCDEBUG_PRINT(("wdunlock\n"), DEBUG_FUNCS); 908 909 wd->sc_flags &= ~WDF_LOCKED; 910 if ((wd->sc_flags & WDF_WANTED) != 0) { 911 wd->sc_flags &= ~WDF_WANTED; 912 wakeup(wd); 913 } 914 } 915 916 int 917 wdopen(dev, flag, fmt, p) 918 dev_t dev; 919 int flag, fmt; 920 struct proc *p; 921 { 922 struct wd_softc *wd; 923 int part, error; 924 925 WDCDEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 926 wd = device_lookup(&wd_cd, WDUNIT(dev)); 927 if (wd == NULL) 928 return (ENXIO); 929 930 /* 931 * If this is the first open of this device, add a reference 932 * to the adapter. 933 */ 934 if (wd->sc_dk.dk_openmask == 0 && 935 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 936 return (error); 937 938 if ((error = wdlock(wd)) != 0) 939 goto bad4; 940 941 if (wd->sc_dk.dk_openmask != 0) { 942 /* 943 * If any partition is open, but the disk has been invalidated, 944 * disallow further opens. 945 */ 946 if ((wd->sc_flags & WDF_LOADED) == 0) { 947 error = EIO; 948 goto bad3; 949 } 950 } else { 951 if ((wd->sc_flags & WDF_LOADED) == 0) { 952 wd->sc_flags |= WDF_LOADED; 953 954 /* Load the physical device parameters. */ 955 wd_get_params(wd, AT_WAIT, &wd->sc_params); 956 957 /* Load the partition info if not already loaded. */ 958 wdgetdisklabel(wd); 959 } 960 } 961 962 part = WDPART(dev); 963 964 /* Check that the partition exists. */ 965 if (part != RAW_PART && 966 (part >= wd->sc_dk.dk_label->d_npartitions || 967 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 968 error = ENXIO; 969 goto bad; 970 } 971 972 /* Insure only one open at a time. */ 973 switch (fmt) { 974 case S_IFCHR: 975 wd->sc_dk.dk_copenmask |= (1 << part); 976 break; 977 case S_IFBLK: 978 wd->sc_dk.dk_bopenmask |= (1 << part); 979 break; 980 } 981 wd->sc_dk.dk_openmask = 982 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 983 984 wdunlock(wd); 985 return 0; 986 987 bad: 988 if (wd->sc_dk.dk_openmask == 0) { 989 } 990 991 bad3: 992 wdunlock(wd); 993 bad4: 994 if (wd->sc_dk.dk_openmask == 0) 995 wd->atabus->ata_delref(wd->drvp); 996 return error; 997 } 998 999 int 1000 wdclose(dev, flag, fmt, p) 1001 dev_t dev; 1002 int flag, fmt; 1003 struct proc *p; 1004 { 1005 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1006 int part = WDPART(dev); 1007 int error; 1008 1009 WDCDEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1010 if ((error = wdlock(wd)) != 0) 1011 return error; 1012 1013 switch (fmt) { 1014 case S_IFCHR: 1015 wd->sc_dk.dk_copenmask &= ~(1 << part); 1016 break; 1017 case S_IFBLK: 1018 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1019 break; 1020 } 1021 wd->sc_dk.dk_openmask = 1022 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1023 1024 if (wd->sc_dk.dk_openmask == 0) { 1025 wd_flushcache(wd, AT_WAIT); 1026 /* XXXX Must wait for I/O to complete! */ 1027 1028 if (! (wd->sc_flags & WDF_KLABEL)) 1029 wd->sc_flags &= ~WDF_LOADED; 1030 1031 wd->atabus->ata_delref(wd->drvp); 1032 } 1033 1034 wdunlock(wd); 1035 return 0; 1036 } 1037 1038 void 1039 wdgetdefaultlabel(wd, lp) 1040 struct wd_softc *wd; 1041 struct disklabel *lp; 1042 { 1043 1044 WDCDEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1045 memset(lp, 0, sizeof(struct disklabel)); 1046 1047 lp->d_secsize = DEV_BSIZE; 1048 lp->d_ntracks = wd->sc_params.atap_heads; 1049 lp->d_nsectors = wd->sc_params.atap_sectors; 1050 lp->d_ncylinders = wd->sc_params.atap_cylinders; 1051 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1052 1053 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1054 lp->d_type = DTYPE_ST506; 1055 else 1056 lp->d_type = DTYPE_ESDI; 1057 1058 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1059 strncpy(lp->d_packname, "fictitious", 16); 1060 if (wd->sc_capacity > UINT32_MAX) 1061 lp->d_secperunit = UINT32_MAX; 1062 else 1063 lp->d_secperunit = wd->sc_capacity; 1064 lp->d_rpm = 3600; 1065 lp->d_interleave = 1; 1066 lp->d_flags = 0; 1067 1068 lp->d_partitions[RAW_PART].p_offset = 0; 1069 lp->d_partitions[RAW_PART].p_size = 1070 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1071 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1072 lp->d_npartitions = RAW_PART + 1; 1073 1074 lp->d_magic = DISKMAGIC; 1075 lp->d_magic2 = DISKMAGIC; 1076 lp->d_checksum = dkcksum(lp); 1077 } 1078 1079 /* 1080 * Fabricate a default disk label, and try to read the correct one. 1081 */ 1082 void 1083 wdgetdisklabel(wd) 1084 struct wd_softc *wd; 1085 { 1086 struct disklabel *lp = wd->sc_dk.dk_label; 1087 const char *errstring; 1088 1089 WDCDEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1090 1091 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1092 1093 wdgetdefaultlabel(wd, lp); 1094 1095 wd->sc_badsect[0] = -1; 1096 1097 if (wd->drvp->state > RECAL) 1098 wd->drvp->drive_flags |= DRIVE_RESET; 1099 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1100 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1101 if (errstring) { 1102 /* 1103 * This probably happened because the drive's default 1104 * geometry doesn't match the DOS geometry. We 1105 * assume the DOS geometry is now in the label and try 1106 * again. XXX This is a kluge. 1107 */ 1108 if (wd->drvp->state > RECAL) 1109 wd->drvp->drive_flags |= DRIVE_RESET; 1110 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1111 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1112 } 1113 if (errstring) { 1114 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1115 return; 1116 } 1117 1118 if (wd->drvp->state > RECAL) 1119 wd->drvp->drive_flags |= DRIVE_RESET; 1120 #ifdef HAS_BAD144_HANDLING 1121 if ((lp->d_flags & D_BADSECT) != 0) 1122 bad144intern(wd); 1123 #endif 1124 } 1125 1126 void 1127 wdperror(wd) 1128 const struct wd_softc *wd; 1129 { 1130 static const char *const errstr0_3[] = {"address mark not found", 1131 "track 0 not found", "aborted command", "media change requested", 1132 "id not found", "media changed", "uncorrectable data error", 1133 "bad block detected"}; 1134 static const char *const errstr4_5[] = { 1135 "obsolete (address mark not found)", 1136 "no media/write protected", "aborted command", 1137 "media change requested", "id not found", "media changed", 1138 "uncorrectable data error", "interface CRC error"}; 1139 const char *const *errstr; 1140 int i; 1141 char *sep = ""; 1142 1143 const char *devname = wd->sc_dev.dv_xname; 1144 struct ata_drive_datas *drvp = wd->drvp; 1145 int errno = wd->sc_wdc_bio.r_error; 1146 1147 if (drvp->ata_vers >= 4) 1148 errstr = errstr4_5; 1149 else 1150 errstr = errstr0_3; 1151 1152 printf("%s: (", devname); 1153 1154 if (errno == 0) 1155 printf("error not notified"); 1156 1157 for (i = 0; i < 8; i++) { 1158 if (errno & (1 << i)) { 1159 printf("%s%s", sep, errstr[i]); 1160 sep = ", "; 1161 } 1162 } 1163 printf(")\n"); 1164 } 1165 1166 int 1167 wdioctl(dev, xfer, addr, flag, p) 1168 dev_t dev; 1169 u_long xfer; 1170 caddr_t addr; 1171 int flag; 1172 struct proc *p; 1173 { 1174 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1175 int error = 0; 1176 #ifdef __HAVE_OLD_DISKLABEL 1177 struct disklabel *newlabel = NULL; 1178 #endif 1179 1180 WDCDEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1181 1182 if ((wd->sc_flags & WDF_LOADED) == 0) 1183 return EIO; 1184 1185 switch (xfer) { 1186 #ifdef HAS_BAD144_HANDLING 1187 case DIOCSBAD: 1188 if ((flag & FWRITE) == 0) 1189 return EBADF; 1190 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1191 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1192 bad144intern(wd); 1193 return 0; 1194 #endif 1195 1196 case DIOCBSLIST : 1197 { 1198 u_int32_t count, missing, skip; 1199 struct disk_badsecinfo dbsi; 1200 struct disk_badsectors *dbs; 1201 size_t available; 1202 caddr_t laddr; 1203 1204 dbsi = *(struct disk_badsecinfo *)addr; 1205 missing = wd->sc_bscount; 1206 count = 0; 1207 available = dbsi.dbsi_bufsize; 1208 skip = dbsi.dbsi_skip; 1209 laddr = dbsi.dbsi_buffer; 1210 1211 /* 1212 * We start this loop with the expectation that all of the 1213 * entries will be missed and decrement this counter each 1214 * time we either skip over one (already copied out) or 1215 * we actually copy it back to user space. The structs 1216 * holding the bad sector information are copied directly 1217 * back to user space whilst the summary is returned via 1218 * the struct passed in via the ioctl. 1219 */ 1220 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1221 if (skip > 0) { 1222 missing--; 1223 skip--; 1224 continue; 1225 } 1226 if (available < sizeof(*dbs)) 1227 break; 1228 available -= sizeof(*dbs); 1229 copyout(dbs, laddr, sizeof(*dbs)); 1230 laddr += sizeof(*dbs); 1231 missing--; 1232 count++; 1233 } 1234 dbsi.dbsi_left = missing; 1235 dbsi.dbsi_copied = count; 1236 *(struct disk_badsecinfo *)addr = dbsi; 1237 return 0; 1238 } 1239 1240 case DIOCBSFLUSH : 1241 /* Clean out the bad sector list */ 1242 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1243 void *head = SLIST_FIRST(&wd->sc_bslist); 1244 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1245 free(head, M_TEMP); 1246 } 1247 wd->sc_bscount = 0; 1248 return 0; 1249 1250 case DIOCGDINFO: 1251 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1252 return 0; 1253 #ifdef __HAVE_OLD_DISKLABEL 1254 case ODIOCGDINFO: 1255 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1256 if (newlabel == NULL) 1257 return EIO; 1258 *newlabel = *(wd->sc_dk.dk_label); 1259 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1260 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1261 else 1262 error = ENOTTY; 1263 free(newlabel, M_TEMP); 1264 return error; 1265 #endif 1266 1267 case DIOCGPART: 1268 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1269 ((struct partinfo *)addr)->part = 1270 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1271 return 0; 1272 1273 case DIOCWDINFO: 1274 case DIOCSDINFO: 1275 #ifdef __HAVE_OLD_DISKLABEL 1276 case ODIOCWDINFO: 1277 case ODIOCSDINFO: 1278 #endif 1279 { 1280 struct disklabel *lp; 1281 1282 if ((flag & FWRITE) == 0) 1283 return EBADF; 1284 1285 #ifdef __HAVE_OLD_DISKLABEL 1286 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1287 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1288 if (newlabel == NULL) 1289 return EIO; 1290 memset(newlabel, 0, sizeof newlabel); 1291 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1292 lp = newlabel; 1293 } else 1294 #endif 1295 lp = (struct disklabel *)addr; 1296 1297 if ((error = wdlock(wd)) != 0) 1298 goto bad; 1299 wd->sc_flags |= WDF_LABELLING; 1300 1301 error = setdisklabel(wd->sc_dk.dk_label, 1302 lp, /*wd->sc_dk.dk_openmask : */0, 1303 wd->sc_dk.dk_cpulabel); 1304 if (error == 0) { 1305 if (wd->drvp->state > RECAL) 1306 wd->drvp->drive_flags |= DRIVE_RESET; 1307 if (xfer == DIOCWDINFO 1308 #ifdef __HAVE_OLD_DISKLABEL 1309 || xfer == ODIOCWDINFO 1310 #endif 1311 ) 1312 error = writedisklabel(WDLABELDEV(dev), 1313 wdstrategy, wd->sc_dk.dk_label, 1314 wd->sc_dk.dk_cpulabel); 1315 } 1316 1317 wd->sc_flags &= ~WDF_LABELLING; 1318 wdunlock(wd); 1319 bad: 1320 #ifdef __HAVE_OLD_DISKLABEL 1321 if (newlabel != NULL) 1322 free(newlabel, M_TEMP); 1323 #endif 1324 return error; 1325 } 1326 1327 case DIOCKLABEL: 1328 if (*(int *)addr) 1329 wd->sc_flags |= WDF_KLABEL; 1330 else 1331 wd->sc_flags &= ~WDF_KLABEL; 1332 return 0; 1333 1334 case DIOCWLABEL: 1335 if ((flag & FWRITE) == 0) 1336 return EBADF; 1337 if (*(int *)addr) 1338 wd->sc_flags |= WDF_WLABEL; 1339 else 1340 wd->sc_flags &= ~WDF_WLABEL; 1341 return 0; 1342 1343 case DIOCGDEFLABEL: 1344 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1345 return 0; 1346 #ifdef __HAVE_OLD_DISKLABEL 1347 case ODIOCGDEFLABEL: 1348 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1349 if (newlabel == NULL) 1350 return EIO; 1351 wdgetdefaultlabel(wd, newlabel); 1352 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1353 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1354 else 1355 error = ENOTTY; 1356 free(newlabel, M_TEMP); 1357 return error; 1358 #endif 1359 1360 #ifdef notyet 1361 case DIOCWFORMAT: 1362 if ((flag & FWRITE) == 0) 1363 return EBADF; 1364 { 1365 register struct format_op *fop; 1366 struct iovec aiov; 1367 struct uio auio; 1368 1369 fop = (struct format_op *)addr; 1370 aiov.iov_base = fop->df_buf; 1371 aiov.iov_len = fop->df_count; 1372 auio.uio_iov = &aiov; 1373 auio.uio_iovcnt = 1; 1374 auio.uio_resid = fop->df_count; 1375 auio.uio_segflg = 0; 1376 auio.uio_offset = 1377 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1378 auio.uio_procp = p; 1379 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1380 &auio); 1381 fop->df_count -= auio.uio_resid; 1382 fop->df_reg[0] = wdc->sc_status; 1383 fop->df_reg[1] = wdc->sc_error; 1384 return error; 1385 } 1386 #endif 1387 case DIOCGCACHE: 1388 return wd_getcache(wd, (int *)addr); 1389 1390 case DIOCSCACHE: 1391 return wd_setcache(wd, *(int *)addr); 1392 1393 case ATAIOCCOMMAND: 1394 /* 1395 * Make sure this command is (relatively) safe first 1396 */ 1397 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1398 (flag & FWRITE) == 0) 1399 return (EBADF); 1400 { 1401 struct wd_ioctl *wi; 1402 atareq_t *atareq = (atareq_t *) addr; 1403 int error; 1404 1405 wi = wi_get(); 1406 wi->wi_softc = wd; 1407 wi->wi_atareq = *atareq; 1408 1409 if (atareq->datalen && atareq->flags & 1410 (ATACMD_READ | ATACMD_WRITE)) { 1411 wi->wi_iov.iov_base = atareq->databuf; 1412 wi->wi_iov.iov_len = atareq->datalen; 1413 wi->wi_uio.uio_iov = &wi->wi_iov; 1414 wi->wi_uio.uio_iovcnt = 1; 1415 wi->wi_uio.uio_resid = atareq->datalen; 1416 wi->wi_uio.uio_offset = 0; 1417 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1418 wi->wi_uio.uio_rw = 1419 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1420 wi->wi_uio.uio_procp = p; 1421 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1422 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1423 minphys, &wi->wi_uio); 1424 } else { 1425 /* No need to call physio if we don't have any 1426 user data */ 1427 wi->wi_bp.b_flags = 0; 1428 wi->wi_bp.b_data = 0; 1429 wi->wi_bp.b_bcount = 0; 1430 wi->wi_bp.b_dev = 0; 1431 wi->wi_bp.b_proc = p; 1432 wdioctlstrategy(&wi->wi_bp); 1433 error = wi->wi_bp.b_error; 1434 } 1435 *atareq = wi->wi_atareq; 1436 wi_free(wi); 1437 return(error); 1438 } 1439 1440 default: 1441 return ENOTTY; 1442 } 1443 1444 #ifdef DIAGNOSTIC 1445 panic("wdioctl: impossible"); 1446 #endif 1447 } 1448 1449 #ifdef B_FORMAT 1450 int 1451 wdformat(struct buf *bp) 1452 { 1453 1454 bp->b_flags |= B_FORMAT; 1455 return wdstrategy(bp); 1456 } 1457 #endif 1458 1459 int 1460 wdsize(dev) 1461 dev_t dev; 1462 { 1463 struct wd_softc *wd; 1464 int part, omask; 1465 int size; 1466 1467 WDCDEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1468 1469 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1470 if (wd == NULL) 1471 return (-1); 1472 1473 part = WDPART(dev); 1474 omask = wd->sc_dk.dk_openmask & (1 << part); 1475 1476 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1477 return (-1); 1478 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1479 size = -1; 1480 else 1481 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1482 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1483 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1484 return (-1); 1485 return (size); 1486 } 1487 1488 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1489 static int wddoingadump = 0; 1490 static int wddumprecalibrated = 0; 1491 static int wddumpmulti = 1; 1492 1493 /* 1494 * Dump core after a system crash. 1495 */ 1496 int 1497 wddump(dev, blkno, va, size) 1498 dev_t dev; 1499 daddr_t blkno; 1500 caddr_t va; 1501 size_t size; 1502 { 1503 struct wd_softc *wd; /* disk unit to do the I/O */ 1504 struct disklabel *lp; /* disk's disklabel */ 1505 int part, err; 1506 int nblks; /* total number of sectors left to write */ 1507 1508 /* Check if recursive dump; if so, punt. */ 1509 if (wddoingadump) 1510 return EFAULT; 1511 wddoingadump = 1; 1512 1513 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1514 if (wd == NULL) 1515 return (ENXIO); 1516 1517 part = WDPART(dev); 1518 1519 /* Convert to disk sectors. Request must be a multiple of size. */ 1520 lp = wd->sc_dk.dk_label; 1521 if ((size % lp->d_secsize) != 0) 1522 return EFAULT; 1523 nblks = size / lp->d_secsize; 1524 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1525 1526 /* Check transfer bounds against partition size. */ 1527 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1528 return EINVAL; 1529 1530 /* Offset block number to start of partition. */ 1531 blkno += lp->d_partitions[part].p_offset; 1532 1533 /* Recalibrate, if first dump transfer. */ 1534 if (wddumprecalibrated == 0) { 1535 wddumpmulti = wd->sc_multi; 1536 wddumprecalibrated = 1; 1537 wd->drvp->state = RESET; 1538 } 1539 1540 while (nblks > 0) { 1541 again: 1542 wd->sc_bp = NULL; 1543 wd->sc_wdc_bio.blkno = blkno; 1544 wd->sc_wdc_bio.flags = ATA_POLL; 1545 if (wddumpmulti == 1) 1546 wd->sc_wdc_bio.flags |= ATA_SINGLE; 1547 if (wd->sc_flags & WDF_LBA48) 1548 wd->sc_wdc_bio.flags |= ATA_LBA48; 1549 if (wd->sc_flags & WDF_LBA) 1550 wd->sc_wdc_bio.flags |= ATA_LBA; 1551 wd->sc_wdc_bio.bcount = 1552 min(nblks, wddumpmulti) * lp->d_secsize; 1553 wd->sc_wdc_bio.databuf = va; 1554 #ifndef WD_DUMP_NOT_TRUSTED 1555 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1556 case WDC_TRY_AGAIN: 1557 panic("wddump: try again"); 1558 break; 1559 case WDC_QUEUED: 1560 panic("wddump: polled command has been queued"); 1561 break; 1562 case WDC_COMPLETE: 1563 break; 1564 } 1565 switch(wd->sc_wdc_bio.error) { 1566 case TIMEOUT: 1567 printf("wddump: device timed out"); 1568 err = EIO; 1569 break; 1570 case ERR_DF: 1571 printf("wddump: drive fault"); 1572 err = EIO; 1573 break; 1574 case ERR_DMA: 1575 printf("wddump: DMA error"); 1576 err = EIO; 1577 break; 1578 case ERROR: 1579 printf("wddump: "); 1580 wdperror(wd); 1581 err = EIO; 1582 break; 1583 case NOERROR: 1584 err = 0; 1585 break; 1586 default: 1587 panic("wddump: unknown error type"); 1588 } 1589 if (err != 0) { 1590 if (wddumpmulti != 1) { 1591 wddumpmulti = 1; /* retry in single-sector */ 1592 printf(", retrying\n"); 1593 goto again; 1594 } 1595 printf("\n"); 1596 return err; 1597 } 1598 #else /* WD_DUMP_NOT_TRUSTED */ 1599 /* Let's just talk about this first... */ 1600 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1601 unit, va, cylin, head, sector); 1602 delay(500 * 1000); /* half a second */ 1603 #endif 1604 1605 /* update block count */ 1606 nblks -= min(nblks, wddumpmulti); 1607 blkno += min(nblks, wddumpmulti); 1608 va += min(nblks, wddumpmulti) * lp->d_secsize; 1609 } 1610 1611 wddoingadump = 0; 1612 return 0; 1613 } 1614 1615 #ifdef HAS_BAD144_HANDLING 1616 /* 1617 * Internalize the bad sector table. 1618 */ 1619 void 1620 bad144intern(wd) 1621 struct wd_softc *wd; 1622 { 1623 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1624 struct disklabel *lp = wd->sc_dk.dk_label; 1625 int i = 0; 1626 1627 WDCDEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1628 1629 for (; i < NBT_BAD; i++) { 1630 if (bt->bt_bad[i].bt_cyl == 0xffff) 1631 break; 1632 wd->sc_badsect[i] = 1633 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1634 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1635 (bt->bt_bad[i].bt_trksec & 0xff); 1636 } 1637 for (; i < NBT_BAD+1; i++) 1638 wd->sc_badsect[i] = -1; 1639 } 1640 #endif 1641 1642 int 1643 wd_get_params(wd, flags, params) 1644 struct wd_softc *wd; 1645 u_int8_t flags; 1646 struct ataparams *params; 1647 { 1648 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1649 case CMD_AGAIN: 1650 return 1; 1651 case CMD_ERR: 1652 /* 1653 * We `know' there's a drive here; just assume it's old. 1654 * This geometry is only used to read the MBR and print a 1655 * (false) attach message. 1656 */ 1657 strncpy(params->atap_model, "ST506", 1658 sizeof params->atap_model); 1659 params->atap_config = ATA_CFG_FIXED; 1660 params->atap_cylinders = 1024; 1661 params->atap_heads = 8; 1662 params->atap_sectors = 17; 1663 params->atap_multi = 1; 1664 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1665 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1666 return 0; 1667 case CMD_OK: 1668 return 0; 1669 default: 1670 panic("wd_get_params: bad return code from ata_get_params"); 1671 /* NOTREACHED */ 1672 } 1673 } 1674 1675 int 1676 wd_getcache(wd, bitsp) 1677 struct wd_softc *wd; 1678 int *bitsp; 1679 { 1680 struct ataparams params; 1681 1682 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1683 return EIO; 1684 if (params.atap_cmd_set1 == 0x0000 || 1685 params.atap_cmd_set1 == 0xffff || 1686 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1687 *bitsp = 0; 1688 return 0; 1689 } 1690 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1691 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1692 *bitsp |= DKCACHE_WRITE; 1693 1694 return 0; 1695 } 1696 1697 int 1698 wd_setcache(wd, bits) 1699 struct wd_softc *wd; 1700 int bits; 1701 { 1702 struct ataparams params; 1703 struct wdc_command wdc_c; 1704 1705 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1706 return EIO; 1707 1708 if (params.atap_cmd_set1 == 0x0000 || 1709 params.atap_cmd_set1 == 0xffff || 1710 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1711 return EOPNOTSUPP; 1712 1713 if ((bits & DKCACHE_READ) == 0 || 1714 (bits & DKCACHE_SAVE) != 0) 1715 return EOPNOTSUPP; 1716 1717 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1718 wdc_c.r_command = SET_FEATURES; 1719 wdc_c.r_st_bmask = 0; 1720 wdc_c.r_st_pmask = 0; 1721 wdc_c.timeout = 30000; /* 30s timeout */ 1722 wdc_c.flags = AT_WAIT; 1723 if (bits & DKCACHE_WRITE) 1724 wdc_c.r_precomp = WDSF_WRITE_CACHE_EN; 1725 else 1726 wdc_c.r_precomp = WDSF_WRITE_CACHE_DS; 1727 if (wd->atabus->ata_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1728 printf("%s: wd_setcache command not complete\n", 1729 wd->sc_dev.dv_xname); 1730 return EIO; 1731 } 1732 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1733 printf("%s: wd_setcache command error 0x%x\n", 1734 wd->sc_dev.dv_xname, wdc_c.flags); 1735 return EIO; 1736 } 1737 if (wdc_c.flags & ERR_NODEV) 1738 return ENODEV; 1739 return 0; 1740 } 1741 1742 void 1743 wd_flushcache(wd, flags) 1744 struct wd_softc *wd; 1745 int flags; 1746 { 1747 struct wdc_command wdc_c; 1748 1749 if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */ 1750 return; 1751 memset(&wdc_c, 0, sizeof(struct wdc_command)); 1752 wdc_c.r_command = WDCC_FLUSHCACHE; 1753 wdc_c.r_st_bmask = WDCS_DRDY; 1754 wdc_c.r_st_pmask = WDCS_DRDY; 1755 wdc_c.flags = flags; 1756 wdc_c.timeout = 30000; /* 30s timeout */ 1757 if (wd->atabus->ata_exec_command(wd->drvp, &wdc_c) != WDC_COMPLETE) { 1758 printf("%s: flush cache command didn't complete\n", 1759 wd->sc_dev.dv_xname); 1760 } 1761 if (wdc_c.flags & AT_TIMEOU) { 1762 printf("%s: flush cache command timeout\n", 1763 wd->sc_dev.dv_xname); 1764 } 1765 if (wdc_c.flags & AT_DF) { 1766 printf("%s: flush cache command: drive fault\n", 1767 wd->sc_dev.dv_xname); 1768 } 1769 /* 1770 * Ignore error register, it shouldn't report anything else 1771 * than COMMAND ABORTED, which means the device doesn't support 1772 * flush cache 1773 */ 1774 } 1775 1776 void 1777 wd_shutdown(arg) 1778 void *arg; 1779 { 1780 struct wd_softc *wd = arg; 1781 wd_flushcache(wd, AT_POLL); 1782 } 1783 1784 /* 1785 * Allocate space for a ioctl queue structure. Mostly taken from 1786 * scsipi_ioctl.c 1787 */ 1788 struct wd_ioctl * 1789 wi_get() 1790 { 1791 struct wd_ioctl *wi; 1792 int s; 1793 1794 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1795 simple_lock_init(&wi->wi_bp.b_interlock); 1796 s = splbio(); 1797 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1798 splx(s); 1799 return (wi); 1800 } 1801 1802 /* 1803 * Free an ioctl structure and remove it from our list 1804 */ 1805 1806 void 1807 wi_free(wi) 1808 struct wd_ioctl *wi; 1809 { 1810 int s; 1811 1812 s = splbio(); 1813 LIST_REMOVE(wi, wi_list); 1814 splx(s); 1815 free(wi, M_TEMP); 1816 } 1817 1818 /* 1819 * Find a wd_ioctl structure based on the struct buf. 1820 */ 1821 1822 struct wd_ioctl * 1823 wi_find(bp) 1824 struct buf *bp; 1825 { 1826 struct wd_ioctl *wi; 1827 int s; 1828 1829 s = splbio(); 1830 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1831 if (bp == &wi->wi_bp) 1832 break; 1833 splx(s); 1834 return (wi); 1835 } 1836 1837 /* 1838 * Ioctl pseudo strategy routine 1839 * 1840 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1841 * happens here is: 1842 * 1843 * - wdioctl() queues a wd_ioctl structure. 1844 * 1845 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1846 * user space I/O is required. If physio() is called, physio() eventually 1847 * calls wdioctlstrategy(). 1848 * 1849 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1850 * to perform the actual command 1851 * 1852 * The reason for the use of the pseudo strategy routine is because 1853 * when doing I/O to/from user space, physio _really_ wants to be in 1854 * the loop. We could put the entire buffer into the ioctl request 1855 * structure, but that won't scale if we want to do things like download 1856 * microcode. 1857 */ 1858 1859 void 1860 wdioctlstrategy(bp) 1861 struct buf *bp; 1862 { 1863 struct wd_ioctl *wi; 1864 struct wdc_command wdc_c; 1865 int error = 0; 1866 1867 wi = wi_find(bp); 1868 if (wi == NULL) { 1869 printf("user_strat: No ioctl\n"); 1870 error = EINVAL; 1871 goto bad; 1872 } 1873 1874 memset(&wdc_c, 0, sizeof(wdc_c)); 1875 1876 /* 1877 * Abort if physio broke up the transfer 1878 */ 1879 1880 if (bp->b_bcount != wi->wi_atareq.datalen) { 1881 printf("physio split wd ioctl request... cannot proceed\n"); 1882 error = EIO; 1883 goto bad; 1884 } 1885 1886 /* 1887 * Abort if we didn't get a buffer size that was a multiple of 1888 * our sector size (or was larger than NBBY) 1889 */ 1890 1891 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1892 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1893 (1 << NBBY)) { 1894 error = EINVAL; 1895 goto bad; 1896 } 1897 1898 /* 1899 * Make sure a timeout was supplied in the ioctl request 1900 */ 1901 1902 if (wi->wi_atareq.timeout == 0) { 1903 error = EINVAL; 1904 goto bad; 1905 } 1906 1907 if (wi->wi_atareq.flags & ATACMD_READ) 1908 wdc_c.flags |= AT_READ; 1909 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1910 wdc_c.flags |= AT_WRITE; 1911 1912 if (wi->wi_atareq.flags & ATACMD_READREG) 1913 wdc_c.flags |= AT_READREG; 1914 1915 wdc_c.flags |= AT_WAIT; 1916 1917 wdc_c.timeout = wi->wi_atareq.timeout; 1918 wdc_c.r_command = wi->wi_atareq.command; 1919 wdc_c.r_head = wi->wi_atareq.head & 0x0f; 1920 wdc_c.r_cyl = wi->wi_atareq.cylinder; 1921 wdc_c.r_sector = wi->wi_atareq.sec_num; 1922 wdc_c.r_count = wi->wi_atareq.sec_count; 1923 wdc_c.r_precomp = wi->wi_atareq.features; 1924 wdc_c.r_st_bmask = WDCS_DRDY; 1925 wdc_c.r_st_pmask = WDCS_DRDY; 1926 wdc_c.data = wi->wi_bp.b_data; 1927 wdc_c.bcount = wi->wi_bp.b_bcount; 1928 1929 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &wdc_c) 1930 != WDC_COMPLETE) { 1931 wi->wi_atareq.retsts = ATACMD_ERROR; 1932 goto bad; 1933 } 1934 1935 if (wdc_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1936 if (wdc_c.flags & AT_ERROR) { 1937 wi->wi_atareq.retsts = ATACMD_ERROR; 1938 wi->wi_atareq.error = wdc_c.r_error; 1939 } else if (wdc_c.flags & AT_DF) 1940 wi->wi_atareq.retsts = ATACMD_DF; 1941 else 1942 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1943 } else { 1944 wi->wi_atareq.retsts = ATACMD_OK; 1945 if (wi->wi_atareq.flags & ATACMD_READREG) { 1946 wi->wi_atareq.head = wdc_c.r_head ; 1947 wi->wi_atareq.cylinder = wdc_c.r_cyl; 1948 wi->wi_atareq.sec_num = wdc_c.r_sector; 1949 wi->wi_atareq.sec_count = wdc_c.r_count; 1950 wi->wi_atareq.features = wdc_c.r_precomp; 1951 wi->wi_atareq.error = wdc_c.r_error; 1952 } 1953 } 1954 1955 bp->b_error = 0; 1956 biodone(bp); 1957 return; 1958 bad: 1959 bp->b_flags |= B_ERROR; 1960 bp->b_error = error; 1961 biodone(bp); 1962 } 1963
Indexes created Mon Sep 29 21:09:56 GMT 2025