wd.c revision 1.257.2.4
1 /* $NetBSD: wd.c,v 1.257.2.4 2004/08/25 06:57:34 skrll Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Charles M. Hannum and by Onno van der Linden. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the NetBSD 50 * Foundation, Inc. and its contributors. 51 * 4. Neither the name of The NetBSD Foundation nor the names of its 52 * contributors may be used to endorse or promote products derived 53 * from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 56 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 65 * POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.257.2.4 2004/08/25 06:57:34 skrll Exp $"); 70 71 #ifndef ATADEBUG 72 #define ATADEBUG 73 #endif /* ATADEBUG */ 74 75 #include "rnd.h" 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/stat.h> 83 #include <sys/ioctl.h> 84 #include <sys/buf.h> 85 #include <sys/uio.h> 86 #include <sys/malloc.h> 87 #include <sys/device.h> 88 #include <sys/disklabel.h> 89 #include <sys/disk.h> 90 #include <sys/syslog.h> 91 #include <sys/proc.h> 92 #include <sys/vnode.h> 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <machine/intr.h> 98 #include <machine/bus.h> 99 100 #include <dev/ata/atareg.h> 101 #include <dev/ata/atavar.h> 102 #include <dev/ata/wdvar.h> 103 #include <dev/ic/wdcreg.h> 104 #include <sys/ataio.h> 105 #include "locators.h" 106 107 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 108 109 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 110 #define WDIORETRIES 5 /* number of retries before giving up */ 111 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 112 113 #define WDUNIT(dev) DISKUNIT(dev) 114 #define WDPART(dev) DISKPART(dev) 115 #define WDMINOR(unit, part) DISKMINOR(unit, part) 116 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 117 118 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 119 120 #define DEBUG_INTR 0x01 121 #define DEBUG_XFERS 0x02 122 #define DEBUG_STATUS 0x04 123 #define DEBUG_FUNCS 0x08 124 #define DEBUG_PROBE 0x10 125 #ifdef ATADEBUG 126 int wdcdebug_wd_mask = 0x0; 127 #define ATADEBUG_PRINT(args, level) \ 128 if (wdcdebug_wd_mask & (level)) \ 129 printf args 130 #else 131 #define ATADEBUG_PRINT(args, level) 132 #endif 133 134 int wdprobe(struct device *, struct cfdata *, void *); 135 void wdattach(struct device *, struct device *, void *); 136 int wddetach(struct device *, int); 137 int wdactivate(struct device *, enum devact); 138 int wdprint(void *, char *); 139 void wdperror(const struct wd_softc *); 140 141 CFATTACH_DECL(wd, sizeof(struct wd_softc), 142 wdprobe, wdattach, wddetach, wdactivate); 143 144 extern struct cfdriver wd_cd; 145 146 dev_type_open(wdopen); 147 dev_type_close(wdclose); 148 dev_type_read(wdread); 149 dev_type_write(wdwrite); 150 dev_type_ioctl(wdioctl); 151 dev_type_strategy(wdstrategy); 152 dev_type_dump(wddump); 153 dev_type_size(wdsize); 154 155 const struct bdevsw wd_bdevsw = { 156 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 157 }; 158 159 const struct cdevsw wd_cdevsw = { 160 wdopen, wdclose, wdread, wdwrite, wdioctl, 161 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 162 }; 163 164 /* 165 * Glue necessary to hook WDCIOCCOMMAND into physio 166 */ 167 168 struct wd_ioctl { 169 LIST_ENTRY(wd_ioctl) wi_list; 170 struct buf wi_bp; 171 struct uio wi_uio; 172 struct iovec wi_iov; 173 atareq_t wi_atareq; 174 struct wd_softc *wi_softc; 175 }; 176 177 LIST_HEAD(, wd_ioctl) wi_head; 178 179 struct wd_ioctl *wi_find(struct buf *); 180 void wi_free(struct wd_ioctl *); 181 struct wd_ioctl *wi_get(void); 182 void wdioctlstrategy(struct buf *); 183 184 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 185 void wdgetdisklabel(struct wd_softc *); 186 void wdstart(void *); 187 void __wdstart(struct wd_softc*, struct buf *); 188 void wdrestart(void *); 189 void wddone(void *); 190 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 191 int wd_standby(struct wd_softc *, int); 192 int wd_flushcache(struct wd_softc *, int); 193 void wd_shutdown(void *); 194 195 int wd_getcache(struct wd_softc *, int *); 196 int wd_setcache(struct wd_softc *, int); 197 198 struct dkdriver wddkdriver = { wdstrategy }; 199 200 #ifdef HAS_BAD144_HANDLING 201 static void bad144intern(struct wd_softc *); 202 #endif 203 204 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 205 206 /* 207 * Quirk table for IDE drives. Put more-specific matches first, since 208 * a simple globbing routine is used for matching. 209 */ 210 static const struct wd_quirk { 211 const char *wdq_match; /* inquiry pattern to match */ 212 int wdq_quirks; /* drive quirks */ 213 } wd_quirk_table[] = { 214 /* 215 * Some Seagate S-ATA drives have a PHY which can get confused 216 * with the way data is packetized by some S-ATA controllers. 217 * 218 * The work-around is to split in two any write transfer whose 219 * sector count % 15 == 1 (assuming 512 byte sectors). 220 * 221 * XXX This is an incomplete list. There are at least a couple 222 * XXX more model numbers. If you have trouble with such transfers 223 * XXX (8K is the most common) on Seagate S-ATA drives, please 224 * XXX notify thorpej (at) NetBSD.org. 225 */ 226 { "ST3120023AS", 227 WD_QUIRK_SPLIT_MOD15_WRITE }, 228 { "ST380023AS", 229 WD_QUIRK_SPLIT_MOD15_WRITE }, 230 231 { NULL, 232 0 } 233 }; 234 235 static const struct wd_quirk * 236 wd_lookup_quirks(const char *name) 237 { 238 const struct wd_quirk *wdq; 239 const char *estr; 240 241 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 242 /* 243 * We only want exact matches (which include matches 244 * against globbing characters). 245 */ 246 if (pmatch(name, wdq->wdq_match, &estr) == 2) 247 return (wdq); 248 } 249 return (NULL); 250 } 251 252 int 253 wdprobe(struct device *parent, struct cfdata *match, void *aux) 254 { 255 struct ata_device *adev = aux; 256 257 if (adev == NULL) 258 return 0; 259 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 260 return 0; 261 262 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 263 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 264 return 0; 265 return 1; 266 } 267 268 void 269 wdattach(struct device *parent, struct device *self, void *aux) 270 { 271 struct wd_softc *wd = (void *)self; 272 struct ata_device *adev= aux; 273 int i, blank; 274 char buf[41], pbuf[9], c, *p, *q; 275 const struct wd_quirk *wdq; 276 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 277 278 lockinit(&wd->sc_lock, PRIBIO | PCATCH, "wdlock", 0, 0); 279 280 callout_init(&wd->sc_restart_ch); 281 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT()|BUFQ_SORT_RAWBLOCK); 282 SLIST_INIT(&wd->sc_bslist); 283 284 wd->atabus = adev->adev_bustype; 285 wd->openings = adev->adev_openings; 286 wd->drvp = adev->adev_drv_data; 287 288 wd->drvp->drv_done = wddone; 289 wd->drvp->drv_softc = &wd->sc_dev; 290 291 aprint_naive("\n"); 292 293 /* read our drive info */ 294 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 295 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 296 return; 297 } 298 299 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 300 i < sizeof(wd->sc_params.atap_model); i++) { 301 c = *p++; 302 if (c == '\0') 303 break; 304 if (c != ' ') { 305 if (blank) { 306 *q++ = ' '; 307 blank = 0; 308 } 309 *q++ = c; 310 } else 311 blank = 1; 312 } 313 *q++ = '\0'; 314 315 aprint_normal(": <%s>\n", buf); 316 317 wdq = wd_lookup_quirks(buf); 318 if (wdq != NULL) 319 wd->sc_quirks = wdq->wdq_quirks; 320 321 if ((wd->sc_params.atap_multi & 0xff) > 1) { 322 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 323 } else { 324 wd->sc_multi = 1; 325 } 326 327 aprint_normal("%s: drive supports %d-sector PIO transfers,", 328 wd->sc_dev.dv_xname, wd->sc_multi); 329 330 /* 48-bit LBA addressing */ 331 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 332 wd->sc_flags |= WDF_LBA48; 333 334 /* Prior to ATA-4, LBA was optional. */ 335 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 336 wd->sc_flags |= WDF_LBA; 337 #if 0 338 /* ATA-4 requires LBA. */ 339 if (wd->sc_params.atap_ataversion != 0xffff && 340 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 341 wd->sc_flags |= WDF_LBA; 342 #endif 343 344 if ((wd->sc_flags & WDF_LBA48) != 0) { 345 aprint_normal(" LBA48 addressing\n"); 346 wd->sc_capacity = 347 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 348 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 349 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 350 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 351 } else if ((wd->sc_flags & WDF_LBA) != 0) { 352 aprint_normal(" LBA addressing\n"); 353 wd->sc_capacity = 354 (wd->sc_params.atap_capacity[1] << 16) | 355 wd->sc_params.atap_capacity[0]; 356 } else { 357 aprint_normal(" chs addressing\n"); 358 wd->sc_capacity = 359 wd->sc_params.atap_cylinders * 360 wd->sc_params.atap_heads * 361 wd->sc_params.atap_sectors; 362 } 363 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 364 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 365 "%d bytes/sect x %llu sectors\n", 366 self->dv_xname, pbuf, 367 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 368 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 369 wd->sc_params.atap_cylinders, 370 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 371 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 372 373 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 374 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 375 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 376 /* 377 * Initialize and attach the disk structure. 378 */ 379 wd->sc_dk.dk_driver = &wddkdriver; 380 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 381 disk_attach(&wd->sc_dk); 382 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 383 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 384 if (wd->sc_sdhook == NULL) 385 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 386 wd->sc_dev.dv_xname); 387 #if NRND > 0 388 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 389 RND_TYPE_DISK, 0); 390 #endif 391 } 392 393 int 394 wdactivate(struct device *self, enum devact act) 395 { 396 int rv = 0; 397 398 switch (act) { 399 case DVACT_ACTIVATE: 400 rv = EOPNOTSUPP; 401 break; 402 403 case DVACT_DEACTIVATE: 404 /* 405 * Nothing to do; we key off the device's DVF_ACTIVATE. 406 */ 407 break; 408 } 409 return (rv); 410 } 411 412 int 413 wddetach(struct device *self, int flags) 414 { 415 struct wd_softc *sc = (struct wd_softc *)self; 416 struct buf *bp; 417 int s, bmaj, cmaj, i, mn; 418 419 /* locate the major number */ 420 bmaj = bdevsw_lookup_major(&wd_bdevsw); 421 cmaj = cdevsw_lookup_major(&wd_cdevsw); 422 423 /* Nuke the vnodes for any open instances. */ 424 for (i = 0; i < MAXPARTITIONS; i++) { 425 mn = WDMINOR(self->dv_unit, i); 426 vdevgone(bmaj, mn, mn, VBLK); 427 vdevgone(cmaj, mn, mn, VCHR); 428 } 429 430 s = splbio(); 431 432 /* Kill off any queued buffers. */ 433 while ((bp = BUFQ_GET(&sc->sc_q)) != NULL) { 434 bp->b_error = EIO; 435 bp->b_flags |= B_ERROR; 436 bp->b_resid = bp->b_bcount; 437 biodone(bp); 438 } 439 440 bufq_free(&sc->sc_q); 441 sc->atabus->ata_killpending(sc->drvp); 442 443 splx(s); 444 445 /* Detach disk. */ 446 disk_detach(&sc->sc_dk); 447 448 /* Clean out the bad sector list */ 449 while (!SLIST_EMPTY(&sc->sc_bslist)) { 450 void *head = SLIST_FIRST(&sc->sc_bslist); 451 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 452 free(head, M_TEMP); 453 } 454 sc->sc_bscount = 0; 455 456 /* Get rid of the shutdown hook. */ 457 if (sc->sc_sdhook != NULL) 458 shutdownhook_disestablish(sc->sc_sdhook); 459 460 #if NRND > 0 461 /* Unhook the entropy source. */ 462 rnd_detach_source(&sc->rnd_source); 463 #endif 464 465 lockmgr(&sc->sc_lock, LK_DRAIN, NULL); 466 sc->drvp->drive_flags = 0; /* no drive any more here */ 467 468 return (0); 469 } 470 471 /* 472 * Read/write routine for a buffer. Validates the arguments and schedules the 473 * transfer. Does not wait for the transfer to complete. 474 */ 475 void 476 wdstrategy(struct buf *bp) 477 { 478 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 479 struct disklabel *lp = wd->sc_dk.dk_label; 480 daddr_t blkno; 481 int s; 482 483 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 484 DEBUG_XFERS); 485 486 /* Valid request? */ 487 if (bp->b_blkno < 0 || 488 (bp->b_bcount % lp->d_secsize) != 0 || 489 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 490 bp->b_error = EINVAL; 491 goto bad; 492 } 493 494 /* If device invalidated (e.g. media change, door open), error. */ 495 if ((wd->sc_flags & WDF_LOADED) == 0) { 496 bp->b_error = EIO; 497 goto bad; 498 } 499 500 /* If it's a null transfer, return immediately. */ 501 if (bp->b_bcount == 0) 502 goto done; 503 504 /* 505 * Do bounds checking, adjust transfer. if error, process. 506 * If end of partition, just return. 507 */ 508 if (WDPART(bp->b_dev) == RAW_PART) { 509 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 510 wd->sc_capacity) <= 0) 511 goto done; 512 } else { 513 if (bounds_check_with_label(&wd->sc_dk, bp, 514 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 515 goto done; 516 } 517 518 /* 519 * Now convert the block number to absolute and put it in 520 * terms of the device's logical block size. 521 */ 522 if (lp->d_secsize >= DEV_BSIZE) 523 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 524 else 525 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 526 527 if (WDPART(bp->b_dev) != RAW_PART) 528 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 529 530 bp->b_rawblkno = blkno; 531 532 /* 533 * If the transfer about to be attempted contains only a block that 534 * is known to be bad then return an error for the transfer without 535 * even attempting to start a transfer up under the premis that we 536 * will just end up doing more retries for a transfer that will end 537 * up failing again. 538 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 539 */ 540 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 541 struct disk_badsectors *dbs; 542 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 543 544 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 545 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 546 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 547 bp->b_error = EIO; 548 goto bad; 549 } 550 } 551 552 /* Queue transfer on drive, activate drive and controller if idle. */ 553 s = splbio(); 554 BUFQ_PUT(&wd->sc_q, bp); 555 wdstart(wd); 556 splx(s); 557 return; 558 bad: 559 bp->b_flags |= B_ERROR; 560 done: 561 /* Toss transfer; we're done early. */ 562 bp->b_resid = bp->b_bcount; 563 biodone(bp); 564 } 565 566 /* 567 * Queue a drive for I/O. 568 */ 569 void 570 wdstart(void *arg) 571 { 572 struct wd_softc *wd = arg; 573 struct buf *bp = NULL; 574 575 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 576 DEBUG_XFERS); 577 while (wd->openings > 0) { 578 579 /* Is there a buf for us ? */ 580 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 581 return; 582 583 /* 584 * Make the command. First lock the device 585 */ 586 wd->openings--; 587 588 wd->retries = 0; 589 __wdstart(wd, bp); 590 } 591 } 592 593 static void 594 wd_split_mod15_write(struct buf *bp) 595 { 596 struct buf *obp = bp->b_private; 597 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 598 599 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 600 /* 601 * Propagate the error. If this was the first half of 602 * the original transfer, make sure to account for that 603 * in the residual. 604 */ 605 if (bp->b_data == obp->b_data) 606 bp->b_resid += bp->b_bcount; 607 goto done; 608 } 609 610 /* 611 * If this was the second half of the transfer, we're all done! 612 */ 613 if (bp->b_data != obp->b_data) 614 goto done; 615 616 /* 617 * Advance the pointer to the second half and issue that command 618 * using the same opening. 619 */ 620 bp->b_flags = obp->b_flags | B_CALL; 621 bp->b_data += bp->b_bcount; 622 bp->b_blkno += (bp->b_bcount / 512); 623 bp->b_rawblkno += (bp->b_bcount / 512); 624 __wdstart(sc, bp); 625 return; 626 627 done: 628 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 629 obp->b_error = bp->b_error; 630 obp->b_resid = bp->b_resid; 631 pool_put(&bufpool, bp); 632 biodone(obp); 633 sc->openings++; 634 /* wddone() will call wdstart() */ 635 } 636 637 void 638 __wdstart(struct wd_softc *wd, struct buf *bp) 639 { 640 641 /* 642 * Deal with the "split mod15 write" quirk. We just divide the 643 * transfer in two, doing the first half and then then second half 644 * with the same command opening. 645 * 646 * Note we MUST do this here, because we can't let insertion 647 * into the bufq cause the transfers to be re-merged. 648 */ 649 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 650 (bp->b_flags & B_READ) == 0 && 651 bp->b_bcount > 512 && 652 ((bp->b_bcount / 512) % 15) == 1)) { 653 struct buf *nbp; 654 655 /* already at splbio */ 656 nbp = pool_get(&bufpool, PR_NOWAIT); 657 if (__predict_false(nbp == NULL)) { 658 /* No memory -- fail the iop. */ 659 bp->b_error = ENOMEM; 660 bp->b_flags |= B_ERROR; 661 bp->b_resid = bp->b_bcount; 662 biodone(bp); 663 wd->openings++; 664 return; 665 } 666 667 BUF_INIT(nbp); 668 nbp->b_error = 0; 669 nbp->b_proc = bp->b_proc; 670 nbp->b_vp = NULLVP; 671 nbp->b_dev = bp->b_dev; 672 673 nbp->b_bcount = bp->b_bcount / 2; 674 nbp->b_bufsize = bp->b_bcount / 2; 675 nbp->b_data = bp->b_data; 676 677 nbp->b_blkno = bp->b_blkno; 678 nbp->b_rawblkno = bp->b_rawblkno; 679 680 nbp->b_flags = bp->b_flags | B_CALL; 681 nbp->b_iodone = wd_split_mod15_write; 682 683 /* Put ptr to orig buf in b_private and use new buf */ 684 nbp->b_private = bp; 685 686 BIO_COPYPRIO(nbp, bp); 687 688 bp = nbp; 689 } 690 691 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 692 wd->sc_wdc_bio.blkdone =0; 693 wd->sc_bp = bp; 694 /* 695 * If we're retrying, retry in single-sector mode. This will give us 696 * the sector number of the problem, and will eventually allow the 697 * transfer to succeed. 698 */ 699 if (wd->retries >= WDIORETRIES_SINGLE) 700 wd->sc_wdc_bio.flags = ATA_SINGLE; 701 else 702 wd->sc_wdc_bio.flags = 0; 703 if (wd->sc_flags & WDF_LBA48 && wd->sc_wdc_bio.blkno > LBA48_THRESHOLD) 704 wd->sc_wdc_bio.flags |= ATA_LBA48; 705 if (wd->sc_flags & WDF_LBA) 706 wd->sc_wdc_bio.flags |= ATA_LBA; 707 if (bp->b_flags & B_READ) 708 wd->sc_wdc_bio.flags |= ATA_READ; 709 wd->sc_wdc_bio.bcount = bp->b_bcount; 710 wd->sc_wdc_bio.databuf = bp->b_data; 711 /* Instrumentation. */ 712 disk_busy(&wd->sc_dk); 713 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 714 case ATACMD_TRY_AGAIN: 715 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 716 break; 717 case ATACMD_QUEUED: 718 case ATACMD_COMPLETE: 719 break; 720 default: 721 panic("__wdstart: bad return code from ata_bio()"); 722 } 723 } 724 725 void 726 wddone(void *v) 727 { 728 struct wd_softc *wd = v; 729 struct buf *bp = wd->sc_bp; 730 const char *errmsg; 731 int do_perror = 0; 732 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 733 DEBUG_XFERS); 734 735 if (bp == NULL) 736 return; 737 bp->b_resid = wd->sc_wdc_bio.bcount; 738 switch (wd->sc_wdc_bio.error) { 739 case ERR_DMA: 740 errmsg = "DMA error"; 741 goto retry; 742 case ERR_DF: 743 errmsg = "device fault"; 744 goto retry; 745 case TIMEOUT: 746 errmsg = "device timeout"; 747 goto retry; 748 case ERR_RESET: 749 errmsg = "channel reset"; 750 goto retry2; 751 case ERROR: 752 /* Don't care about media change bits */ 753 if (wd->sc_wdc_bio.r_error != 0 && 754 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 755 goto noerror; 756 errmsg = "error"; 757 do_perror = 1; 758 retry: /* Just reset and retry. Can we do more ? */ 759 (*wd->atabus->ata_reset_drive)(wd->drvp, 0); 760 retry2: 761 diskerr(bp, "wd", errmsg, LOG_PRINTF, 762 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 763 if (wd->retries < WDIORETRIES) 764 printf(", retrying\n"); 765 if (do_perror) 766 wdperror(wd); 767 if (wd->retries < WDIORETRIES) { 768 wd->retries++; 769 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 770 wdrestart, wd); 771 return; 772 } 773 printf("\n"); 774 775 /* 776 * Not all errors indicate a failed block but those that do, 777 * put the block on the bad-block list for the device. Only 778 * do this for reads because the drive should do it for writes, 779 * itself, according to Manuel. 780 */ 781 if ((bp->b_flags & B_READ) && 782 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 783 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 784 struct disk_badsectors *dbs; 785 786 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 787 dbs->dbs_min = bp->b_rawblkno; 788 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 789 microtime(&dbs->dbs_failedat); 790 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 791 wd->sc_bscount++; 792 } 793 794 bp->b_flags |= B_ERROR; 795 bp->b_error = EIO; 796 break; 797 case NOERROR: 798 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 799 printf("%s: soft error (corrected)\n", 800 wd->sc_dev.dv_xname); 801 break; 802 case ERR_NODEV: 803 bp->b_flags |= B_ERROR; 804 bp->b_error = EIO; 805 break; 806 } 807 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 808 (bp->b_flags & B_READ)); 809 #if NRND > 0 810 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 811 #endif 812 /* XXX Yuck, but we don't want to increment openings in this case */ 813 if (__predict_false((bp->b_flags & B_CALL) != 0 && 814 bp->b_iodone == wd_split_mod15_write)) 815 biodone(bp); 816 else { 817 biodone(bp); 818 wd->openings++; 819 } 820 wdstart(wd); 821 } 822 823 void 824 wdrestart(void *v) 825 { 826 struct wd_softc *wd = v; 827 struct buf *bp = wd->sc_bp; 828 int s; 829 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 830 DEBUG_XFERS); 831 832 s = splbio(); 833 __wdstart(v, bp); 834 splx(s); 835 } 836 837 int 838 wdread(dev_t dev, struct uio *uio, int flags) 839 { 840 841 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 842 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 843 } 844 845 int 846 wdwrite(dev_t dev, struct uio *uio, int flags) 847 { 848 849 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 850 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 851 } 852 853 int 854 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 855 { 856 struct wd_softc *wd; 857 int part, error; 858 859 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 860 wd = device_lookup(&wd_cd, WDUNIT(dev)); 861 if (wd == NULL) 862 return (ENXIO); 863 864 if ((wd->sc_dev.dv_flags & DVF_ACTIVE) == 0) 865 return (ENODEV); 866 867 /* 868 * If this is the first open of this device, add a reference 869 * to the adapter. 870 */ 871 if (wd->sc_dk.dk_openmask == 0 && 872 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 873 return (error); 874 875 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 876 goto bad4; 877 878 if (wd->sc_dk.dk_openmask != 0) { 879 /* 880 * If any partition is open, but the disk has been invalidated, 881 * disallow further opens. 882 */ 883 if ((wd->sc_flags & WDF_LOADED) == 0) { 884 error = EIO; 885 goto bad3; 886 } 887 } else { 888 if ((wd->sc_flags & WDF_LOADED) == 0) { 889 wd->sc_flags |= WDF_LOADED; 890 891 /* Load the physical device parameters. */ 892 wd_get_params(wd, AT_WAIT, &wd->sc_params); 893 894 /* Load the partition info if not already loaded. */ 895 wdgetdisklabel(wd); 896 } 897 } 898 899 part = WDPART(dev); 900 901 /* Check that the partition exists. */ 902 if (part != RAW_PART && 903 (part >= wd->sc_dk.dk_label->d_npartitions || 904 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 905 error = ENXIO; 906 goto bad; 907 } 908 909 /* Insure only one open at a time. */ 910 switch (fmt) { 911 case S_IFCHR: 912 wd->sc_dk.dk_copenmask |= (1 << part); 913 break; 914 case S_IFBLK: 915 wd->sc_dk.dk_bopenmask |= (1 << part); 916 break; 917 } 918 wd->sc_dk.dk_openmask = 919 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 920 921 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 922 return 0; 923 924 bad: 925 if (wd->sc_dk.dk_openmask == 0) { 926 } 927 928 bad3: 929 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 930 bad4: 931 if (wd->sc_dk.dk_openmask == 0) 932 wd->atabus->ata_delref(wd->drvp); 933 return error; 934 } 935 936 int 937 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 938 { 939 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 940 int part = WDPART(dev); 941 int error; 942 943 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 944 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 945 return error; 946 947 switch (fmt) { 948 case S_IFCHR: 949 wd->sc_dk.dk_copenmask &= ~(1 << part); 950 break; 951 case S_IFBLK: 952 wd->sc_dk.dk_bopenmask &= ~(1 << part); 953 break; 954 } 955 wd->sc_dk.dk_openmask = 956 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 957 958 if (wd->sc_dk.dk_openmask == 0) { 959 wd_flushcache(wd, AT_WAIT); 960 961 if (! (wd->sc_flags & WDF_KLABEL)) 962 wd->sc_flags &= ~WDF_LOADED; 963 964 wd->atabus->ata_delref(wd->drvp); 965 } 966 967 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 968 return 0; 969 } 970 971 void 972 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 973 { 974 975 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 976 memset(lp, 0, sizeof(struct disklabel)); 977 978 lp->d_secsize = DEV_BSIZE; 979 lp->d_ntracks = wd->sc_params.atap_heads; 980 lp->d_nsectors = wd->sc_params.atap_sectors; 981 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 982 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 983 wd->sc_params.atap_cylinders; 984 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 985 986 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 987 lp->d_type = DTYPE_ST506; 988 else 989 lp->d_type = DTYPE_ESDI; 990 991 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 992 strncpy(lp->d_packname, "fictitious", 16); 993 if (wd->sc_capacity > UINT32_MAX) 994 lp->d_secperunit = UINT32_MAX; 995 else 996 lp->d_secperunit = wd->sc_capacity; 997 lp->d_rpm = 3600; 998 lp->d_interleave = 1; 999 lp->d_flags = 0; 1000 1001 lp->d_partitions[RAW_PART].p_offset = 0; 1002 lp->d_partitions[RAW_PART].p_size = 1003 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1004 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1005 lp->d_npartitions = RAW_PART + 1; 1006 1007 lp->d_magic = DISKMAGIC; 1008 lp->d_magic2 = DISKMAGIC; 1009 lp->d_checksum = dkcksum(lp); 1010 } 1011 1012 /* 1013 * Fabricate a default disk label, and try to read the correct one. 1014 */ 1015 void 1016 wdgetdisklabel(struct wd_softc *wd) 1017 { 1018 struct disklabel *lp = wd->sc_dk.dk_label; 1019 const char *errstring; 1020 int s; 1021 1022 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1023 1024 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1025 1026 wdgetdefaultlabel(wd, lp); 1027 1028 wd->sc_badsect[0] = -1; 1029 1030 if (wd->drvp->state > RESET) { 1031 s = splbio(); 1032 wd->drvp->drive_flags |= DRIVE_RESET; 1033 splx(s); 1034 } 1035 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1036 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1037 if (errstring) { 1038 /* 1039 * This probably happened because the drive's default 1040 * geometry doesn't match the DOS geometry. We 1041 * assume the DOS geometry is now in the label and try 1042 * again. XXX This is a kluge. 1043 */ 1044 if (wd->drvp->state > RESET) { 1045 s = splbio(); 1046 wd->drvp->drive_flags |= DRIVE_RESET; 1047 splx(s); 1048 } 1049 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1050 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1051 } 1052 if (errstring) { 1053 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1054 return; 1055 } 1056 1057 if (wd->drvp->state > RESET) { 1058 s = splbio(); 1059 wd->drvp->drive_flags |= DRIVE_RESET; 1060 splx(s); 1061 } 1062 #ifdef HAS_BAD144_HANDLING 1063 if ((lp->d_flags & D_BADSECT) != 0) 1064 bad144intern(wd); 1065 #endif 1066 } 1067 1068 void 1069 wdperror(const struct wd_softc *wd) 1070 { 1071 static const char *const errstr0_3[] = {"address mark not found", 1072 "track 0 not found", "aborted command", "media change requested", 1073 "id not found", "media changed", "uncorrectable data error", 1074 "bad block detected"}; 1075 static const char *const errstr4_5[] = { 1076 "obsolete (address mark not found)", 1077 "no media/write protected", "aborted command", 1078 "media change requested", "id not found", "media changed", 1079 "uncorrectable data error", "interface CRC error"}; 1080 const char *const *errstr; 1081 int i; 1082 char *sep = ""; 1083 1084 const char *devname = wd->sc_dev.dv_xname; 1085 struct ata_drive_datas *drvp = wd->drvp; 1086 int errno = wd->sc_wdc_bio.r_error; 1087 1088 if (drvp->ata_vers >= 4) 1089 errstr = errstr4_5; 1090 else 1091 errstr = errstr0_3; 1092 1093 printf("%s: (", devname); 1094 1095 if (errno == 0) 1096 printf("error not notified"); 1097 1098 for (i = 0; i < 8; i++) { 1099 if (errno & (1 << i)) { 1100 printf("%s%s", sep, errstr[i]); 1101 sep = ", "; 1102 } 1103 } 1104 printf(")\n"); 1105 } 1106 1107 int 1108 wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct lwp *l) 1109 { 1110 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1111 int error = 0, s; 1112 #ifdef __HAVE_OLD_DISKLABEL 1113 struct disklabel *newlabel = NULL; 1114 #endif 1115 1116 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1117 1118 if ((wd->sc_flags & WDF_LOADED) == 0) 1119 return EIO; 1120 1121 switch (xfer) { 1122 #ifdef HAS_BAD144_HANDLING 1123 case DIOCSBAD: 1124 if ((flag & FWRITE) == 0) 1125 return EBADF; 1126 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1127 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1128 bad144intern(wd); 1129 return 0; 1130 #endif 1131 1132 case DIOCBSLIST : 1133 { 1134 u_int32_t count, missing, skip; 1135 struct disk_badsecinfo dbsi; 1136 struct disk_badsectors *dbs; 1137 size_t available; 1138 caddr_t laddr; 1139 1140 dbsi = *(struct disk_badsecinfo *)addr; 1141 missing = wd->sc_bscount; 1142 count = 0; 1143 available = dbsi.dbsi_bufsize; 1144 skip = dbsi.dbsi_skip; 1145 laddr = dbsi.dbsi_buffer; 1146 1147 /* 1148 * We start this loop with the expectation that all of the 1149 * entries will be missed and decrement this counter each 1150 * time we either skip over one (already copied out) or 1151 * we actually copy it back to user space. The structs 1152 * holding the bad sector information are copied directly 1153 * back to user space whilst the summary is returned via 1154 * the struct passed in via the ioctl. 1155 */ 1156 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1157 if (skip > 0) { 1158 missing--; 1159 skip--; 1160 continue; 1161 } 1162 if (available < sizeof(*dbs)) 1163 break; 1164 available -= sizeof(*dbs); 1165 copyout(dbs, laddr, sizeof(*dbs)); 1166 laddr += sizeof(*dbs); 1167 missing--; 1168 count++; 1169 } 1170 dbsi.dbsi_left = missing; 1171 dbsi.dbsi_copied = count; 1172 *(struct disk_badsecinfo *)addr = dbsi; 1173 return 0; 1174 } 1175 1176 case DIOCBSFLUSH : 1177 /* Clean out the bad sector list */ 1178 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1179 void *head = SLIST_FIRST(&wd->sc_bslist); 1180 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1181 free(head, M_TEMP); 1182 } 1183 wd->sc_bscount = 0; 1184 return 0; 1185 1186 case DIOCGDINFO: 1187 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1188 return 0; 1189 #ifdef __HAVE_OLD_DISKLABEL 1190 case ODIOCGDINFO: 1191 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1192 if (newlabel == NULL) 1193 return EIO; 1194 *newlabel = *(wd->sc_dk.dk_label); 1195 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1196 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1197 else 1198 error = ENOTTY; 1199 free(newlabel, M_TEMP); 1200 return error; 1201 #endif 1202 1203 case DIOCGPART: 1204 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1205 ((struct partinfo *)addr)->part = 1206 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1207 return 0; 1208 1209 case DIOCWDINFO: 1210 case DIOCSDINFO: 1211 #ifdef __HAVE_OLD_DISKLABEL 1212 case ODIOCWDINFO: 1213 case ODIOCSDINFO: 1214 #endif 1215 { 1216 struct disklabel *lp; 1217 1218 if ((flag & FWRITE) == 0) 1219 return EBADF; 1220 1221 #ifdef __HAVE_OLD_DISKLABEL 1222 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1223 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1224 if (newlabel == NULL) 1225 return EIO; 1226 memset(newlabel, 0, sizeof newlabel); 1227 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1228 lp = newlabel; 1229 } else 1230 #endif 1231 lp = (struct disklabel *)addr; 1232 1233 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 1234 goto bad; 1235 wd->sc_flags |= WDF_LABELLING; 1236 1237 error = setdisklabel(wd->sc_dk.dk_label, 1238 lp, /*wd->sc_dk.dk_openmask : */0, 1239 wd->sc_dk.dk_cpulabel); 1240 if (error == 0) { 1241 if (wd->drvp->state > RESET) { 1242 s = splbio(); 1243 wd->drvp->drive_flags |= DRIVE_RESET; 1244 splx(s); 1245 } 1246 if (xfer == DIOCWDINFO 1247 #ifdef __HAVE_OLD_DISKLABEL 1248 || xfer == ODIOCWDINFO 1249 #endif 1250 ) 1251 error = writedisklabel(WDLABELDEV(dev), 1252 wdstrategy, wd->sc_dk.dk_label, 1253 wd->sc_dk.dk_cpulabel); 1254 } 1255 1256 wd->sc_flags &= ~WDF_LABELLING; 1257 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 1258 bad: 1259 #ifdef __HAVE_OLD_DISKLABEL 1260 if (newlabel != NULL) 1261 free(newlabel, M_TEMP); 1262 #endif 1263 return error; 1264 } 1265 1266 case DIOCKLABEL: 1267 if (*(int *)addr) 1268 wd->sc_flags |= WDF_KLABEL; 1269 else 1270 wd->sc_flags &= ~WDF_KLABEL; 1271 return 0; 1272 1273 case DIOCWLABEL: 1274 if ((flag & FWRITE) == 0) 1275 return EBADF; 1276 if (*(int *)addr) 1277 wd->sc_flags |= WDF_WLABEL; 1278 else 1279 wd->sc_flags &= ~WDF_WLABEL; 1280 return 0; 1281 1282 case DIOCGDEFLABEL: 1283 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1284 return 0; 1285 #ifdef __HAVE_OLD_DISKLABEL 1286 case ODIOCGDEFLABEL: 1287 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1288 if (newlabel == NULL) 1289 return EIO; 1290 wdgetdefaultlabel(wd, newlabel); 1291 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1292 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1293 else 1294 error = ENOTTY; 1295 free(newlabel, M_TEMP); 1296 return error; 1297 #endif 1298 1299 #ifdef notyet 1300 case DIOCWFORMAT: 1301 if ((flag & FWRITE) == 0) 1302 return EBADF; 1303 { 1304 register struct format_op *fop; 1305 struct iovec aiov; 1306 struct uio auio; 1307 1308 fop = (struct format_op *)addr; 1309 aiov.iov_base = fop->df_buf; 1310 aiov.iov_len = fop->df_count; 1311 auio.uio_iov = &aiov; 1312 auio.uio_iovcnt = 1; 1313 auio.uio_resid = fop->df_count; 1314 auio.uio_segflg = 0; 1315 auio.uio_offset = 1316 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1317 auio.uio_procp = p; 1318 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1319 &auio); 1320 fop->df_count -= auio.uio_resid; 1321 fop->df_reg[0] = wdc->sc_status; 1322 fop->df_reg[1] = wdc->sc_error; 1323 return error; 1324 } 1325 #endif 1326 case DIOCGCACHE: 1327 return wd_getcache(wd, (int *)addr); 1328 1329 case DIOCSCACHE: 1330 return wd_setcache(wd, *(int *)addr); 1331 1332 case DIOCCACHESYNC: 1333 return wd_flushcache(wd, AT_WAIT); 1334 1335 case ATAIOCCOMMAND: 1336 /* 1337 * Make sure this command is (relatively) safe first 1338 */ 1339 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1340 (flag & FWRITE) == 0) 1341 return (EBADF); 1342 { 1343 struct wd_ioctl *wi; 1344 atareq_t *atareq = (atareq_t *) addr; 1345 int error; 1346 1347 wi = wi_get(); 1348 wi->wi_softc = wd; 1349 wi->wi_atareq = *atareq; 1350 1351 if (atareq->datalen && atareq->flags & 1352 (ATACMD_READ | ATACMD_WRITE)) { 1353 wi->wi_iov.iov_base = atareq->databuf; 1354 wi->wi_iov.iov_len = atareq->datalen; 1355 wi->wi_uio.uio_iov = &wi->wi_iov; 1356 wi->wi_uio.uio_iovcnt = 1; 1357 wi->wi_uio.uio_resid = atareq->datalen; 1358 wi->wi_uio.uio_offset = 0; 1359 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1360 wi->wi_uio.uio_rw = 1361 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1362 wi->wi_uio.uio_lwp = l; 1363 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1364 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1365 minphys, &wi->wi_uio); 1366 } else { 1367 /* No need to call physio if we don't have any 1368 user data */ 1369 wi->wi_bp.b_flags = 0; 1370 wi->wi_bp.b_data = 0; 1371 wi->wi_bp.b_bcount = 0; 1372 wi->wi_bp.b_dev = 0; 1373 wi->wi_bp.b_proc = l->l_proc; 1374 wdioctlstrategy(&wi->wi_bp); 1375 error = wi->wi_bp.b_error; 1376 } 1377 *atareq = wi->wi_atareq; 1378 wi_free(wi); 1379 return(error); 1380 } 1381 1382 default: 1383 return ENOTTY; 1384 } 1385 1386 #ifdef DIAGNOSTIC 1387 panic("wdioctl: impossible"); 1388 #endif 1389 } 1390 1391 #ifdef B_FORMAT 1392 int 1393 wdformat(struct buf *bp) 1394 { 1395 1396 bp->b_flags |= B_FORMAT; 1397 return wdstrategy(bp); 1398 } 1399 #endif 1400 1401 int 1402 wdsize(dev_t dev) 1403 { 1404 struct wd_softc *wd; 1405 int part, omask; 1406 int size; 1407 1408 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1409 1410 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1411 if (wd == NULL) 1412 return (-1); 1413 1414 part = WDPART(dev); 1415 omask = wd->sc_dk.dk_openmask & (1 << part); 1416 1417 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1418 return (-1); 1419 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1420 size = -1; 1421 else 1422 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1423 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1424 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1425 return (-1); 1426 return (size); 1427 } 1428 1429 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1430 static int wddoingadump = 0; 1431 static int wddumprecalibrated = 0; 1432 static int wddumpmulti = 1; 1433 1434 /* 1435 * Dump core after a system crash. 1436 */ 1437 int 1438 wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1439 { 1440 struct wd_softc *wd; /* disk unit to do the I/O */ 1441 struct disklabel *lp; /* disk's disklabel */ 1442 int part, err; 1443 int nblks; /* total number of sectors left to write */ 1444 1445 /* Check if recursive dump; if so, punt. */ 1446 if (wddoingadump) 1447 return EFAULT; 1448 wddoingadump = 1; 1449 1450 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1451 if (wd == NULL) 1452 return (ENXIO); 1453 1454 part = WDPART(dev); 1455 1456 /* Convert to disk sectors. Request must be a multiple of size. */ 1457 lp = wd->sc_dk.dk_label; 1458 if ((size % lp->d_secsize) != 0) 1459 return EFAULT; 1460 nblks = size / lp->d_secsize; 1461 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1462 1463 /* Check transfer bounds against partition size. */ 1464 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1465 return EINVAL; 1466 1467 /* Offset block number to start of partition. */ 1468 blkno += lp->d_partitions[part].p_offset; 1469 1470 /* Recalibrate, if first dump transfer. */ 1471 if (wddumprecalibrated == 0) { 1472 wddumpmulti = wd->sc_multi; 1473 wddumprecalibrated = 1; 1474 (*wd->atabus->ata_reset_drive)(wd->drvp, 1475 AT_POLL | AT_RST_EMERG); 1476 wd->drvp->state = RESET; 1477 } 1478 1479 while (nblks > 0) { 1480 wd->sc_bp = NULL; 1481 wd->sc_wdc_bio.blkno = blkno; 1482 wd->sc_wdc_bio.flags = ATA_POLL; 1483 if (wd->sc_flags & WDF_LBA48 && blkno > LBA48_THRESHOLD) 1484 wd->sc_wdc_bio.flags |= ATA_LBA48; 1485 if (wd->sc_flags & WDF_LBA) 1486 wd->sc_wdc_bio.flags |= ATA_LBA; 1487 wd->sc_wdc_bio.bcount = 1488 min(nblks, wddumpmulti) * lp->d_secsize; 1489 wd->sc_wdc_bio.databuf = va; 1490 #ifndef WD_DUMP_NOT_TRUSTED 1491 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1492 case ATACMD_TRY_AGAIN: 1493 panic("wddump: try again"); 1494 break; 1495 case ATACMD_QUEUED: 1496 panic("wddump: polled command has been queued"); 1497 break; 1498 case ATACMD_COMPLETE: 1499 break; 1500 } 1501 switch(wd->sc_wdc_bio.error) { 1502 case TIMEOUT: 1503 printf("wddump: device timed out"); 1504 err = EIO; 1505 break; 1506 case ERR_DF: 1507 printf("wddump: drive fault"); 1508 err = EIO; 1509 break; 1510 case ERR_DMA: 1511 printf("wddump: DMA error"); 1512 err = EIO; 1513 break; 1514 case ERROR: 1515 printf("wddump: "); 1516 wdperror(wd); 1517 err = EIO; 1518 break; 1519 case NOERROR: 1520 err = 0; 1521 break; 1522 default: 1523 panic("wddump: unknown error type"); 1524 } 1525 if (err != 0) { 1526 printf("\n"); 1527 return err; 1528 } 1529 #else /* WD_DUMP_NOT_TRUSTED */ 1530 /* Let's just talk about this first... */ 1531 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1532 unit, va, cylin, head, sector); 1533 delay(500 * 1000); /* half a second */ 1534 #endif 1535 1536 /* update block count */ 1537 nblks -= min(nblks, wddumpmulti); 1538 blkno += min(nblks, wddumpmulti); 1539 va += min(nblks, wddumpmulti) * lp->d_secsize; 1540 } 1541 1542 wddoingadump = 0; 1543 return 0; 1544 } 1545 1546 #ifdef HAS_BAD144_HANDLING 1547 /* 1548 * Internalize the bad sector table. 1549 */ 1550 void 1551 bad144intern(struct wd_softc *wd) 1552 { 1553 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1554 struct disklabel *lp = wd->sc_dk.dk_label; 1555 int i = 0; 1556 1557 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1558 1559 for (; i < NBT_BAD; i++) { 1560 if (bt->bt_bad[i].bt_cyl == 0xffff) 1561 break; 1562 wd->sc_badsect[i] = 1563 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1564 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1565 (bt->bt_bad[i].bt_trksec & 0xff); 1566 } 1567 for (; i < NBT_BAD+1; i++) 1568 wd->sc_badsect[i] = -1; 1569 } 1570 #endif 1571 1572 int 1573 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1574 { 1575 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1576 case CMD_AGAIN: 1577 return 1; 1578 case CMD_ERR: 1579 /* 1580 * We `know' there's a drive here; just assume it's old. 1581 * This geometry is only used to read the MBR and print a 1582 * (false) attach message. 1583 */ 1584 strncpy(params->atap_model, "ST506", 1585 sizeof params->atap_model); 1586 params->atap_config = ATA_CFG_FIXED; 1587 params->atap_cylinders = 1024; 1588 params->atap_heads = 8; 1589 params->atap_sectors = 17; 1590 params->atap_multi = 1; 1591 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1592 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1593 return 0; 1594 case CMD_OK: 1595 return 0; 1596 default: 1597 panic("wd_get_params: bad return code from ata_get_params"); 1598 /* NOTREACHED */ 1599 } 1600 } 1601 1602 int 1603 wd_getcache(struct wd_softc *wd, int *bitsp) 1604 { 1605 struct ataparams params; 1606 1607 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1608 return EIO; 1609 if (params.atap_cmd_set1 == 0x0000 || 1610 params.atap_cmd_set1 == 0xffff || 1611 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1612 *bitsp = 0; 1613 return 0; 1614 } 1615 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1616 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1617 *bitsp |= DKCACHE_WRITE; 1618 1619 return 0; 1620 } 1621 1622 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1623 1624 int 1625 wd_setcache(struct wd_softc *wd, int bits) 1626 { 1627 struct ataparams params; 1628 struct ata_command ata_c; 1629 1630 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1631 return EIO; 1632 1633 if (params.atap_cmd_set1 == 0x0000 || 1634 params.atap_cmd_set1 == 0xffff || 1635 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1636 return EOPNOTSUPP; 1637 1638 if ((bits & DKCACHE_READ) == 0 || 1639 (bits & DKCACHE_SAVE) != 0) 1640 return EOPNOTSUPP; 1641 1642 memset(&ata_c, 0, sizeof(struct ata_command)); 1643 ata_c.r_command = SET_FEATURES; 1644 ata_c.r_st_bmask = 0; 1645 ata_c.r_st_pmask = 0; 1646 ata_c.timeout = 30000; /* 30s timeout */ 1647 ata_c.flags = AT_WAIT; 1648 if (bits & DKCACHE_WRITE) 1649 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1650 else 1651 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1652 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1653 printf("%s: wd_setcache command not complete\n", 1654 wd->sc_dev.dv_xname); 1655 return EIO; 1656 } 1657 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1658 char sbuf[sizeof(at_errbits) + 64]; 1659 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1660 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1661 sbuf); 1662 return EIO; 1663 } 1664 return 0; 1665 } 1666 1667 int 1668 wd_standby(struct wd_softc *wd, int flags) 1669 { 1670 struct ata_command ata_c; 1671 1672 memset(&ata_c, 0, sizeof(struct ata_command)); 1673 ata_c.r_command = WDCC_STANDBY_IMMED; 1674 ata_c.r_st_bmask = WDCS_DRDY; 1675 ata_c.r_st_pmask = WDCS_DRDY; 1676 ata_c.flags = flags; 1677 ata_c.timeout = 30000; /* 30s timeout */ 1678 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1679 printf("%s: standby immediate command didn't complete\n", 1680 wd->sc_dev.dv_xname); 1681 return EIO; 1682 } 1683 if (ata_c.flags & AT_ERROR) { 1684 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1685 return ENODEV; 1686 } 1687 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1688 char sbuf[sizeof(at_errbits) + 64]; 1689 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1690 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1691 sbuf); 1692 return EIO; 1693 } 1694 return 0; 1695 } 1696 1697 int 1698 wd_flushcache(struct wd_softc *wd, int flags) 1699 { 1700 struct ata_command ata_c; 1701 1702 if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */ 1703 return ENODEV; 1704 memset(&ata_c, 0, sizeof(struct ata_command)); 1705 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1706 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1707 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1708 else 1709 ata_c.r_command = WDCC_FLUSHCACHE; 1710 ata_c.r_st_bmask = WDCS_DRDY; 1711 ata_c.r_st_pmask = WDCS_DRDY; 1712 ata_c.flags = flags; 1713 ata_c.timeout = 30000; /* 30s timeout */ 1714 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1715 printf("%s: flush cache command didn't complete\n", 1716 wd->sc_dev.dv_xname); 1717 return EIO; 1718 } 1719 if (ata_c.flags & AT_ERROR) { 1720 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1721 return ENODEV; 1722 } 1723 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1724 char sbuf[sizeof(at_errbits) + 64]; 1725 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1726 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1727 sbuf); 1728 return EIO; 1729 } 1730 return 0; 1731 } 1732 1733 void 1734 wd_shutdown(void *arg) 1735 { 1736 struct wd_softc *wd = arg; 1737 wd_flushcache(wd, AT_POLL); 1738 } 1739 1740 /* 1741 * Allocate space for a ioctl queue structure. Mostly taken from 1742 * scsipi_ioctl.c 1743 */ 1744 struct wd_ioctl * 1745 wi_get(void) 1746 { 1747 struct wd_ioctl *wi; 1748 int s; 1749 1750 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1751 simple_lock_init(&wi->wi_bp.b_interlock); 1752 s = splbio(); 1753 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1754 splx(s); 1755 return (wi); 1756 } 1757 1758 /* 1759 * Free an ioctl structure and remove it from our list 1760 */ 1761 1762 void 1763 wi_free(struct wd_ioctl *wi) 1764 { 1765 int s; 1766 1767 s = splbio(); 1768 LIST_REMOVE(wi, wi_list); 1769 splx(s); 1770 free(wi, M_TEMP); 1771 } 1772 1773 /* 1774 * Find a wd_ioctl structure based on the struct buf. 1775 */ 1776 1777 struct wd_ioctl * 1778 wi_find(struct buf *bp) 1779 { 1780 struct wd_ioctl *wi; 1781 int s; 1782 1783 s = splbio(); 1784 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1785 if (bp == &wi->wi_bp) 1786 break; 1787 splx(s); 1788 return (wi); 1789 } 1790 1791 /* 1792 * Ioctl pseudo strategy routine 1793 * 1794 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1795 * happens here is: 1796 * 1797 * - wdioctl() queues a wd_ioctl structure. 1798 * 1799 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1800 * user space I/O is required. If physio() is called, physio() eventually 1801 * calls wdioctlstrategy(). 1802 * 1803 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1804 * to perform the actual command 1805 * 1806 * The reason for the use of the pseudo strategy routine is because 1807 * when doing I/O to/from user space, physio _really_ wants to be in 1808 * the loop. We could put the entire buffer into the ioctl request 1809 * structure, but that won't scale if we want to do things like download 1810 * microcode. 1811 */ 1812 1813 void 1814 wdioctlstrategy(struct buf *bp) 1815 { 1816 struct wd_ioctl *wi; 1817 struct ata_command ata_c; 1818 int error = 0; 1819 1820 wi = wi_find(bp); 1821 if (wi == NULL) { 1822 printf("user_strat: No ioctl\n"); 1823 error = EINVAL; 1824 goto bad; 1825 } 1826 1827 memset(&ata_c, 0, sizeof(ata_c)); 1828 1829 /* 1830 * Abort if physio broke up the transfer 1831 */ 1832 1833 if (bp->b_bcount != wi->wi_atareq.datalen) { 1834 printf("physio split wd ioctl request... cannot proceed\n"); 1835 error = EIO; 1836 goto bad; 1837 } 1838 1839 /* 1840 * Abort if we didn't get a buffer size that was a multiple of 1841 * our sector size (or was larger than NBBY) 1842 */ 1843 1844 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1845 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1846 (1 << NBBY)) { 1847 error = EINVAL; 1848 goto bad; 1849 } 1850 1851 /* 1852 * Make sure a timeout was supplied in the ioctl request 1853 */ 1854 1855 if (wi->wi_atareq.timeout == 0) { 1856 error = EINVAL; 1857 goto bad; 1858 } 1859 1860 if (wi->wi_atareq.flags & ATACMD_READ) 1861 ata_c.flags |= AT_READ; 1862 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1863 ata_c.flags |= AT_WRITE; 1864 1865 if (wi->wi_atareq.flags & ATACMD_READREG) 1866 ata_c.flags |= AT_READREG; 1867 1868 ata_c.flags |= AT_WAIT; 1869 1870 ata_c.timeout = wi->wi_atareq.timeout; 1871 ata_c.r_command = wi->wi_atareq.command; 1872 ata_c.r_head = wi->wi_atareq.head & 0x0f; 1873 ata_c.r_cyl = wi->wi_atareq.cylinder; 1874 ata_c.r_sector = wi->wi_atareq.sec_num; 1875 ata_c.r_count = wi->wi_atareq.sec_count; 1876 ata_c.r_features = wi->wi_atareq.features; 1877 ata_c.r_st_bmask = WDCS_DRDY; 1878 ata_c.r_st_pmask = WDCS_DRDY; 1879 ata_c.data = wi->wi_bp.b_data; 1880 ata_c.bcount = wi->wi_bp.b_bcount; 1881 1882 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 1883 != ATACMD_COMPLETE) { 1884 wi->wi_atareq.retsts = ATACMD_ERROR; 1885 goto bad; 1886 } 1887 1888 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1889 if (ata_c.flags & AT_ERROR) { 1890 wi->wi_atareq.retsts = ATACMD_ERROR; 1891 wi->wi_atareq.error = ata_c.r_error; 1892 } else if (ata_c.flags & AT_DF) 1893 wi->wi_atareq.retsts = ATACMD_DF; 1894 else 1895 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1896 } else { 1897 wi->wi_atareq.retsts = ATACMD_OK; 1898 if (wi->wi_atareq.flags & ATACMD_READREG) { 1899 wi->wi_atareq.head = ata_c.r_head ; 1900 wi->wi_atareq.cylinder = ata_c.r_cyl; 1901 wi->wi_atareq.sec_num = ata_c.r_sector; 1902 wi->wi_atareq.sec_count = ata_c.r_count; 1903 wi->wi_atareq.features = ata_c.r_features; 1904 wi->wi_atareq.error = ata_c.r_error; 1905 } 1906 } 1907 1908 bp->b_error = 0; 1909 biodone(bp); 1910 return; 1911 bad: 1912 bp->b_flags |= B_ERROR; 1913 bp->b_error = error; 1914 biodone(bp); 1915 } 1916
Indexes created Mon Oct 20 16:09:52 GMT 2025