wd.c revision 1.293
1 /* $NetBSD: wd.c,v 1.293 2004/09/16 20:52:43 bouyer Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Manuel Bouyer. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to The NetBSD Foundation 37 * by Charles M. Hannum and by Onno van der Linden. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by the NetBSD 50 * Foundation, Inc. and its contributors. 51 * 4. Neither the name of The NetBSD Foundation nor the names of its 52 * contributors may be used to endorse or promote products derived 53 * from this software without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 56 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 57 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 58 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 59 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 60 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 61 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 62 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 63 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 64 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 65 * POSSIBILITY OF SUCH DAMAGE. 66 */ 67 68 #include <sys/cdefs.h> 69 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.293 2004/09/16 20:52:43 bouyer Exp $"); 70 71 #ifndef ATADEBUG 72 #define ATADEBUG 73 #endif /* ATADEBUG */ 74 75 #include "rnd.h" 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/kernel.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/stat.h> 83 #include <sys/ioctl.h> 84 #include <sys/buf.h> 85 #include <sys/uio.h> 86 #include <sys/malloc.h> 87 #include <sys/device.h> 88 #include <sys/disklabel.h> 89 #include <sys/disk.h> 90 #include <sys/syslog.h> 91 #include <sys/proc.h> 92 #include <sys/vnode.h> 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <machine/intr.h> 98 #include <machine/bus.h> 99 100 #include <dev/ata/atareg.h> 101 #include <dev/ata/atavar.h> 102 #include <dev/ata/wdvar.h> 103 #include <dev/ic/wdcreg.h> 104 #include <sys/ataio.h> 105 #include "locators.h" 106 107 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 108 109 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 110 #define WDIORETRIES 5 /* number of retries before giving up */ 111 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 112 113 #define WDUNIT(dev) DISKUNIT(dev) 114 #define WDPART(dev) DISKPART(dev) 115 #define WDMINOR(unit, part) DISKMINOR(unit, part) 116 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 117 118 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 119 120 #define DEBUG_INTR 0x01 121 #define DEBUG_XFERS 0x02 122 #define DEBUG_STATUS 0x04 123 #define DEBUG_FUNCS 0x08 124 #define DEBUG_PROBE 0x10 125 #ifdef ATADEBUG 126 int wdcdebug_wd_mask = 0x0; 127 #define ATADEBUG_PRINT(args, level) \ 128 if (wdcdebug_wd_mask & (level)) \ 129 printf args 130 #else 131 #define ATADEBUG_PRINT(args, level) 132 #endif 133 134 int wdprobe(struct device *, struct cfdata *, void *); 135 void wdattach(struct device *, struct device *, void *); 136 int wddetach(struct device *, int); 137 int wdactivate(struct device *, enum devact); 138 int wdprint(void *, char *); 139 void wdperror(const struct wd_softc *); 140 141 CFATTACH_DECL(wd, sizeof(struct wd_softc), 142 wdprobe, wdattach, wddetach, wdactivate); 143 144 extern struct cfdriver wd_cd; 145 146 dev_type_open(wdopen); 147 dev_type_close(wdclose); 148 dev_type_read(wdread); 149 dev_type_write(wdwrite); 150 dev_type_ioctl(wdioctl); 151 dev_type_strategy(wdstrategy); 152 dev_type_dump(wddump); 153 dev_type_size(wdsize); 154 155 const struct bdevsw wd_bdevsw = { 156 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 157 }; 158 159 const struct cdevsw wd_cdevsw = { 160 wdopen, wdclose, wdread, wdwrite, wdioctl, 161 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 162 }; 163 164 /* 165 * Glue necessary to hook WDCIOCCOMMAND into physio 166 */ 167 168 struct wd_ioctl { 169 LIST_ENTRY(wd_ioctl) wi_list; 170 struct buf wi_bp; 171 struct uio wi_uio; 172 struct iovec wi_iov; 173 atareq_t wi_atareq; 174 struct wd_softc *wi_softc; 175 }; 176 177 LIST_HEAD(, wd_ioctl) wi_head; 178 179 struct wd_ioctl *wi_find(struct buf *); 180 void wi_free(struct wd_ioctl *); 181 struct wd_ioctl *wi_get(void); 182 void wdioctlstrategy(struct buf *); 183 184 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 185 void wdgetdisklabel(struct wd_softc *); 186 void wdstart(void *); 187 void __wdstart(struct wd_softc*, struct buf *); 188 void wdrestart(void *); 189 void wddone(void *); 190 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 191 int wd_standby(struct wd_softc *, int); 192 int wd_flushcache(struct wd_softc *, int); 193 void wd_shutdown(void *); 194 195 int wd_getcache(struct wd_softc *, int *); 196 int wd_setcache(struct wd_softc *, int); 197 198 struct dkdriver wddkdriver = { wdstrategy }; 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 #ifdef WD_SOFTBADSECT 283 SLIST_INIT(&wd->sc_bslist); 284 #endif 285 wd->atabus = adev->adev_bustype; 286 wd->openings = adev->adev_openings; 287 wd->drvp = adev->adev_drv_data; 288 289 wd->drvp->drv_done = wddone; 290 wd->drvp->drv_softc = &wd->sc_dev; 291 292 aprint_naive("\n"); 293 294 /* read our drive info */ 295 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 296 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 297 return; 298 } 299 300 for (blank = 0, p = wd->sc_params.atap_model, q = buf, i = 0; 301 i < sizeof(wd->sc_params.atap_model); i++) { 302 c = *p++; 303 if (c == '\0') 304 break; 305 if (c != ' ') { 306 if (blank) { 307 *q++ = ' '; 308 blank = 0; 309 } 310 *q++ = c; 311 } else 312 blank = 1; 313 } 314 *q++ = '\0'; 315 316 aprint_normal(": <%s>\n", buf); 317 318 wdq = wd_lookup_quirks(buf); 319 if (wdq != NULL) 320 wd->sc_quirks = wdq->wdq_quirks; 321 322 if ((wd->sc_params.atap_multi & 0xff) > 1) { 323 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 324 } else { 325 wd->sc_multi = 1; 326 } 327 328 aprint_normal("%s: drive supports %d-sector PIO transfers,", 329 wd->sc_dev.dv_xname, wd->sc_multi); 330 331 /* 48-bit LBA addressing */ 332 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 333 wd->sc_flags |= WDF_LBA48; 334 335 /* Prior to ATA-4, LBA was optional. */ 336 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 337 wd->sc_flags |= WDF_LBA; 338 #if 0 339 /* ATA-4 requires LBA. */ 340 if (wd->sc_params.atap_ataversion != 0xffff && 341 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 342 wd->sc_flags |= WDF_LBA; 343 #endif 344 345 if ((wd->sc_flags & WDF_LBA48) != 0) { 346 aprint_normal(" LBA48 addressing\n"); 347 wd->sc_capacity = 348 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 349 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 350 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 351 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 352 } else if ((wd->sc_flags & WDF_LBA) != 0) { 353 aprint_normal(" LBA addressing\n"); 354 wd->sc_capacity = 355 (wd->sc_params.atap_capacity[1] << 16) | 356 wd->sc_params.atap_capacity[0]; 357 } else { 358 aprint_normal(" chs addressing\n"); 359 wd->sc_capacity = 360 wd->sc_params.atap_cylinders * 361 wd->sc_params.atap_heads * 362 wd->sc_params.atap_sectors; 363 } 364 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 365 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 366 "%d bytes/sect x %llu sectors\n", 367 self->dv_xname, pbuf, 368 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 369 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 370 wd->sc_params.atap_cylinders, 371 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 372 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 373 374 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 375 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 376 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 377 /* 378 * Initialize and attach the disk structure. 379 */ 380 wd->sc_dk.dk_driver = &wddkdriver; 381 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 382 disk_attach(&wd->sc_dk); 383 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 384 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 385 if (wd->sc_sdhook == NULL) 386 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 387 wd->sc_dev.dv_xname); 388 #if NRND > 0 389 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 390 RND_TYPE_DISK, 0); 391 #endif 392 } 393 394 int 395 wdactivate(struct device *self, enum devact act) 396 { 397 int rv = 0; 398 399 switch (act) { 400 case DVACT_ACTIVATE: 401 rv = EOPNOTSUPP; 402 break; 403 404 case DVACT_DEACTIVATE: 405 /* 406 * Nothing to do; we key off the device's DVF_ACTIVATE. 407 */ 408 break; 409 } 410 return (rv); 411 } 412 413 int 414 wddetach(struct device *self, int flags) 415 { 416 struct wd_softc *sc = (struct wd_softc *)self; 417 struct buf *bp; 418 int s, bmaj, cmaj, i, mn; 419 420 /* locate the major number */ 421 bmaj = bdevsw_lookup_major(&wd_bdevsw); 422 cmaj = cdevsw_lookup_major(&wd_cdevsw); 423 424 /* Nuke the vnodes for any open instances. */ 425 for (i = 0; i < MAXPARTITIONS; i++) { 426 mn = WDMINOR(self->dv_unit, i); 427 vdevgone(bmaj, mn, mn, VBLK); 428 vdevgone(cmaj, mn, mn, VCHR); 429 } 430 431 s = splbio(); 432 433 /* Kill off any queued buffers. */ 434 while ((bp = BUFQ_GET(&sc->sc_q)) != NULL) { 435 bp->b_error = EIO; 436 bp->b_flags |= B_ERROR; 437 bp->b_resid = bp->b_bcount; 438 biodone(bp); 439 } 440 441 bufq_free(&sc->sc_q); 442 sc->atabus->ata_killpending(sc->drvp); 443 444 splx(s); 445 446 /* Detach disk. */ 447 disk_detach(&sc->sc_dk); 448 449 #ifdef WD_SOFTBADSECT 450 /* Clean out the bad sector list */ 451 while (!SLIST_EMPTY(&sc->sc_bslist)) { 452 void *head = SLIST_FIRST(&sc->sc_bslist); 453 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 454 free(head, M_TEMP); 455 } 456 sc->sc_bscount = 0; 457 #endif 458 459 /* Get rid of the shutdown hook. */ 460 if (sc->sc_sdhook != NULL) 461 shutdownhook_disestablish(sc->sc_sdhook); 462 463 #if NRND > 0 464 /* Unhook the entropy source. */ 465 rnd_detach_source(&sc->rnd_source); 466 #endif 467 468 lockmgr(&sc->sc_lock, LK_DRAIN, NULL); 469 sc->drvp->drive_flags = 0; /* no drive any more here */ 470 471 return (0); 472 } 473 474 /* 475 * Read/write routine for a buffer. Validates the arguments and schedules the 476 * transfer. Does not wait for the transfer to complete. 477 */ 478 void 479 wdstrategy(struct buf *bp) 480 { 481 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 482 struct disklabel *lp = wd->sc_dk.dk_label; 483 daddr_t blkno; 484 int s; 485 486 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 487 DEBUG_XFERS); 488 489 /* Valid request? */ 490 if (bp->b_blkno < 0 || 491 (bp->b_bcount % lp->d_secsize) != 0 || 492 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 493 bp->b_error = EINVAL; 494 goto bad; 495 } 496 497 /* If device invalidated (e.g. media change, door open), error. */ 498 if ((wd->sc_flags & WDF_LOADED) == 0) { 499 bp->b_error = EIO; 500 goto bad; 501 } 502 503 /* If it's a null transfer, return immediately. */ 504 if (bp->b_bcount == 0) 505 goto done; 506 507 /* 508 * Do bounds checking, adjust transfer. if error, process. 509 * If end of partition, just return. 510 */ 511 if (WDPART(bp->b_dev) == RAW_PART) { 512 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 513 wd->sc_capacity) <= 0) 514 goto done; 515 } else { 516 if (bounds_check_with_label(&wd->sc_dk, bp, 517 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 518 goto done; 519 } 520 521 /* 522 * Now convert the block number to absolute and put it in 523 * terms of the device's logical block size. 524 */ 525 if (lp->d_secsize >= DEV_BSIZE) 526 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 527 else 528 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 529 530 if (WDPART(bp->b_dev) != RAW_PART) 531 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 532 533 bp->b_rawblkno = blkno; 534 535 #ifdef WD_SOFTBADSECT 536 /* 537 * If the transfer about to be attempted contains only a block that 538 * is known to be bad then return an error for the transfer without 539 * even attempting to start a transfer up under the premis that we 540 * will just end up doing more retries for a transfer that will end 541 * up failing again. 542 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 543 */ 544 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 545 struct disk_badsectors *dbs; 546 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 547 548 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 549 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 550 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 551 bp->b_error = EIO; 552 goto bad; 553 } 554 } 555 #endif 556 557 /* Queue transfer on drive, activate drive and controller if idle. */ 558 s = splbio(); 559 BUFQ_PUT(&wd->sc_q, bp); 560 wdstart(wd); 561 splx(s); 562 return; 563 bad: 564 bp->b_flags |= B_ERROR; 565 done: 566 /* Toss transfer; we're done early. */ 567 bp->b_resid = bp->b_bcount; 568 biodone(bp); 569 } 570 571 /* 572 * Queue a drive for I/O. 573 */ 574 void 575 wdstart(void *arg) 576 { 577 struct wd_softc *wd = arg; 578 struct buf *bp = NULL; 579 580 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 581 DEBUG_XFERS); 582 while (wd->openings > 0) { 583 584 /* Is there a buf for us ? */ 585 if ((bp = BUFQ_GET(&wd->sc_q)) == NULL) 586 return; 587 588 /* 589 * Make the command. First lock the device 590 */ 591 wd->openings--; 592 593 wd->retries = 0; 594 __wdstart(wd, bp); 595 } 596 } 597 598 static void 599 wd_split_mod15_write(struct buf *bp) 600 { 601 struct buf *obp = bp->b_private; 602 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 603 604 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 605 /* 606 * Propagate the error. If this was the first half of 607 * the original transfer, make sure to account for that 608 * in the residual. 609 */ 610 if (bp->b_data == obp->b_data) 611 bp->b_resid += bp->b_bcount; 612 goto done; 613 } 614 615 /* 616 * If this was the second half of the transfer, we're all done! 617 */ 618 if (bp->b_data != obp->b_data) 619 goto done; 620 621 /* 622 * Advance the pointer to the second half and issue that command 623 * using the same opening. 624 */ 625 bp->b_flags = obp->b_flags | B_CALL; 626 bp->b_data += bp->b_bcount; 627 bp->b_blkno += (bp->b_bcount / 512); 628 bp->b_rawblkno += (bp->b_bcount / 512); 629 __wdstart(sc, bp); 630 return; 631 632 done: 633 obp->b_flags |= (bp->b_flags & (B_EINTR|B_ERROR)); 634 obp->b_error = bp->b_error; 635 obp->b_resid = bp->b_resid; 636 pool_put(&bufpool, bp); 637 biodone(obp); 638 sc->openings++; 639 /* wddone() will call wdstart() */ 640 } 641 642 void 643 __wdstart(struct wd_softc *wd, struct buf *bp) 644 { 645 646 /* 647 * Deal with the "split mod15 write" quirk. We just divide the 648 * transfer in two, doing the first half and then then second half 649 * with the same command opening. 650 * 651 * Note we MUST do this here, because we can't let insertion 652 * into the bufq cause the transfers to be re-merged. 653 */ 654 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 655 (bp->b_flags & B_READ) == 0 && 656 bp->b_bcount > 512 && 657 ((bp->b_bcount / 512) % 15) == 1)) { 658 struct buf *nbp; 659 660 /* already at splbio */ 661 nbp = pool_get(&bufpool, PR_NOWAIT); 662 if (__predict_false(nbp == NULL)) { 663 /* No memory -- fail the iop. */ 664 bp->b_error = ENOMEM; 665 bp->b_flags |= B_ERROR; 666 bp->b_resid = bp->b_bcount; 667 biodone(bp); 668 wd->openings++; 669 return; 670 } 671 672 BUF_INIT(nbp); 673 nbp->b_error = 0; 674 nbp->b_proc = bp->b_proc; 675 nbp->b_vp = NULLVP; 676 nbp->b_dev = bp->b_dev; 677 678 nbp->b_bcount = bp->b_bcount / 2; 679 nbp->b_bufsize = bp->b_bcount / 2; 680 nbp->b_data = bp->b_data; 681 682 nbp->b_blkno = bp->b_blkno; 683 nbp->b_rawblkno = bp->b_rawblkno; 684 685 nbp->b_flags = bp->b_flags | B_CALL; 686 nbp->b_iodone = wd_split_mod15_write; 687 688 /* Put ptr to orig buf in b_private and use new buf */ 689 nbp->b_private = bp; 690 691 BIO_COPYPRIO(nbp, bp); 692 693 bp = nbp; 694 } 695 696 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 697 wd->sc_wdc_bio.blkdone =0; 698 wd->sc_bp = bp; 699 /* 700 * If we're retrying, retry in single-sector mode. This will give us 701 * the sector number of the problem, and will eventually allow the 702 * transfer to succeed. 703 */ 704 if (wd->retries >= WDIORETRIES_SINGLE) 705 wd->sc_wdc_bio.flags = ATA_SINGLE; 706 else 707 wd->sc_wdc_bio.flags = 0; 708 if (wd->sc_flags & WDF_LBA48 && wd->sc_wdc_bio.blkno > LBA48_THRESHOLD) 709 wd->sc_wdc_bio.flags |= ATA_LBA48; 710 if (wd->sc_flags & WDF_LBA) 711 wd->sc_wdc_bio.flags |= ATA_LBA; 712 if (bp->b_flags & B_READ) 713 wd->sc_wdc_bio.flags |= ATA_READ; 714 wd->sc_wdc_bio.bcount = bp->b_bcount; 715 wd->sc_wdc_bio.databuf = bp->b_data; 716 /* Instrumentation. */ 717 disk_busy(&wd->sc_dk); 718 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 719 case ATACMD_TRY_AGAIN: 720 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 721 break; 722 case ATACMD_QUEUED: 723 case ATACMD_COMPLETE: 724 break; 725 default: 726 panic("__wdstart: bad return code from ata_bio()"); 727 } 728 } 729 730 void 731 wddone(void *v) 732 { 733 struct wd_softc *wd = v; 734 struct buf *bp = wd->sc_bp; 735 const char *errmsg; 736 int do_perror = 0; 737 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 738 DEBUG_XFERS); 739 740 if (bp == NULL) 741 return; 742 bp->b_resid = wd->sc_wdc_bio.bcount; 743 switch (wd->sc_wdc_bio.error) { 744 case ERR_DMA: 745 errmsg = "DMA error"; 746 goto retry; 747 case ERR_DF: 748 errmsg = "device fault"; 749 goto retry; 750 case TIMEOUT: 751 errmsg = "device timeout"; 752 goto retry; 753 case ERR_RESET: 754 errmsg = "channel reset"; 755 goto retry2; 756 case ERROR: 757 /* Don't care about media change bits */ 758 if (wd->sc_wdc_bio.r_error != 0 && 759 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 760 goto noerror; 761 errmsg = "error"; 762 do_perror = 1; 763 retry: /* Just reset and retry. Can we do more ? */ 764 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 765 retry2: 766 diskerr(bp, "wd", errmsg, LOG_PRINTF, 767 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 768 if (wd->retries < WDIORETRIES) 769 printf(", retrying\n"); 770 if (do_perror) 771 wdperror(wd); 772 if (wd->retries < WDIORETRIES) { 773 wd->retries++; 774 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 775 wdrestart, wd); 776 return; 777 } 778 printf("\n"); 779 780 #ifdef WD_SOFTBADSECT 781 /* 782 * Not all errors indicate a failed block but those that do, 783 * put the block on the bad-block list for the device. Only 784 * do this for reads because the drive should do it for writes, 785 * itself, according to Manuel. 786 */ 787 if ((bp->b_flags & B_READ) && 788 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 789 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 790 struct disk_badsectors *dbs; 791 792 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 793 dbs->dbs_min = bp->b_rawblkno; 794 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 795 microtime(&dbs->dbs_failedat); 796 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 797 wd->sc_bscount++; 798 } 799 #endif 800 bp->b_flags |= B_ERROR; 801 bp->b_error = EIO; 802 break; 803 case NOERROR: 804 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 805 printf("%s: soft error (corrected)\n", 806 wd->sc_dev.dv_xname); 807 break; 808 case ERR_NODEV: 809 bp->b_flags |= B_ERROR; 810 bp->b_error = EIO; 811 break; 812 } 813 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 814 (bp->b_flags & B_READ)); 815 #if NRND > 0 816 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 817 #endif 818 /* XXX Yuck, but we don't want to increment openings in this case */ 819 if (__predict_false((bp->b_flags & B_CALL) != 0 && 820 bp->b_iodone == wd_split_mod15_write)) 821 biodone(bp); 822 else { 823 biodone(bp); 824 wd->openings++; 825 } 826 wdstart(wd); 827 } 828 829 void 830 wdrestart(void *v) 831 { 832 struct wd_softc *wd = v; 833 struct buf *bp = wd->sc_bp; 834 int s; 835 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 836 DEBUG_XFERS); 837 838 s = splbio(); 839 __wdstart(v, bp); 840 splx(s); 841 } 842 843 int 844 wdread(dev_t dev, struct uio *uio, int flags) 845 { 846 847 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 848 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 849 } 850 851 int 852 wdwrite(dev_t dev, struct uio *uio, int flags) 853 { 854 855 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 856 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 857 } 858 859 int 860 wdopen(dev_t dev, int flag, int fmt, struct proc *p) 861 { 862 struct wd_softc *wd; 863 int part, error; 864 865 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 866 wd = device_lookup(&wd_cd, WDUNIT(dev)); 867 if (wd == NULL) 868 return (ENXIO); 869 870 if ((wd->sc_dev.dv_flags & DVF_ACTIVE) == 0) 871 return (ENODEV); 872 873 /* 874 * If this is the first open of this device, add a reference 875 * to the adapter. 876 */ 877 if (wd->sc_dk.dk_openmask == 0 && 878 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 879 return (error); 880 881 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 882 goto bad4; 883 884 if (wd->sc_dk.dk_openmask != 0) { 885 /* 886 * If any partition is open, but the disk has been invalidated, 887 * disallow further opens. 888 */ 889 if ((wd->sc_flags & WDF_LOADED) == 0) { 890 error = EIO; 891 goto bad3; 892 } 893 } else { 894 if ((wd->sc_flags & WDF_LOADED) == 0) { 895 wd->sc_flags |= WDF_LOADED; 896 897 /* Load the physical device parameters. */ 898 wd_get_params(wd, AT_WAIT, &wd->sc_params); 899 900 /* Load the partition info if not already loaded. */ 901 wdgetdisklabel(wd); 902 } 903 } 904 905 part = WDPART(dev); 906 907 /* Check that the partition exists. */ 908 if (part != RAW_PART && 909 (part >= wd->sc_dk.dk_label->d_npartitions || 910 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 911 error = ENXIO; 912 goto bad; 913 } 914 915 /* Insure only one open at a time. */ 916 switch (fmt) { 917 case S_IFCHR: 918 wd->sc_dk.dk_copenmask |= (1 << part); 919 break; 920 case S_IFBLK: 921 wd->sc_dk.dk_bopenmask |= (1 << part); 922 break; 923 } 924 wd->sc_dk.dk_openmask = 925 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 926 927 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 928 return 0; 929 930 bad: 931 if (wd->sc_dk.dk_openmask == 0) { 932 } 933 934 bad3: 935 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 936 bad4: 937 if (wd->sc_dk.dk_openmask == 0) 938 wd->atabus->ata_delref(wd->drvp); 939 return error; 940 } 941 942 int 943 wdclose(dev_t dev, int flag, int fmt, struct proc *p) 944 { 945 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 946 int part = WDPART(dev); 947 int error; 948 949 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 950 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 951 return error; 952 953 switch (fmt) { 954 case S_IFCHR: 955 wd->sc_dk.dk_copenmask &= ~(1 << part); 956 break; 957 case S_IFBLK: 958 wd->sc_dk.dk_bopenmask &= ~(1 << part); 959 break; 960 } 961 wd->sc_dk.dk_openmask = 962 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 963 964 if (wd->sc_dk.dk_openmask == 0) { 965 wd_flushcache(wd, AT_WAIT); 966 967 if (! (wd->sc_flags & WDF_KLABEL)) 968 wd->sc_flags &= ~WDF_LOADED; 969 970 wd->atabus->ata_delref(wd->drvp); 971 } 972 973 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 974 return 0; 975 } 976 977 void 978 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 979 { 980 981 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 982 memset(lp, 0, sizeof(struct disklabel)); 983 984 lp->d_secsize = DEV_BSIZE; 985 lp->d_ntracks = wd->sc_params.atap_heads; 986 lp->d_nsectors = wd->sc_params.atap_sectors; 987 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 988 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 989 wd->sc_params.atap_cylinders; 990 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 991 992 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 993 lp->d_type = DTYPE_ST506; 994 else 995 lp->d_type = DTYPE_ESDI; 996 997 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 998 strncpy(lp->d_packname, "fictitious", 16); 999 if (wd->sc_capacity > UINT32_MAX) 1000 lp->d_secperunit = UINT32_MAX; 1001 else 1002 lp->d_secperunit = wd->sc_capacity; 1003 lp->d_rpm = 3600; 1004 lp->d_interleave = 1; 1005 lp->d_flags = 0; 1006 1007 lp->d_partitions[RAW_PART].p_offset = 0; 1008 lp->d_partitions[RAW_PART].p_size = 1009 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1010 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1011 lp->d_npartitions = RAW_PART + 1; 1012 1013 lp->d_magic = DISKMAGIC; 1014 lp->d_magic2 = DISKMAGIC; 1015 lp->d_checksum = dkcksum(lp); 1016 } 1017 1018 /* 1019 * Fabricate a default disk label, and try to read the correct one. 1020 */ 1021 void 1022 wdgetdisklabel(struct wd_softc *wd) 1023 { 1024 struct disklabel *lp = wd->sc_dk.dk_label; 1025 const char *errstring; 1026 int s; 1027 1028 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1029 1030 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1031 1032 wdgetdefaultlabel(wd, lp); 1033 1034 wd->sc_badsect[0] = -1; 1035 1036 if (wd->drvp->state > RESET) { 1037 s = splbio(); 1038 wd->drvp->drive_flags |= DRIVE_RESET; 1039 splx(s); 1040 } 1041 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, RAW_PART), 1042 wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1043 if (errstring) { 1044 /* 1045 * This probably happened because the drive's default 1046 * geometry doesn't match the DOS geometry. We 1047 * assume the DOS geometry is now in the label and try 1048 * again. XXX This is a kluge. 1049 */ 1050 if (wd->drvp->state > RESET) { 1051 s = splbio(); 1052 wd->drvp->drive_flags |= DRIVE_RESET; 1053 splx(s); 1054 } 1055 errstring = readdisklabel(MAKEWDDEV(0, wd->sc_dev.dv_unit, 1056 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1057 } 1058 if (errstring) { 1059 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1060 return; 1061 } 1062 1063 if (wd->drvp->state > RESET) { 1064 s = splbio(); 1065 wd->drvp->drive_flags |= DRIVE_RESET; 1066 splx(s); 1067 } 1068 #ifdef HAS_BAD144_HANDLING 1069 if ((lp->d_flags & D_BADSECT) != 0) 1070 bad144intern(wd); 1071 #endif 1072 } 1073 1074 void 1075 wdperror(const struct wd_softc *wd) 1076 { 1077 static const char *const errstr0_3[] = {"address mark not found", 1078 "track 0 not found", "aborted command", "media change requested", 1079 "id not found", "media changed", "uncorrectable data error", 1080 "bad block detected"}; 1081 static const char *const errstr4_5[] = { 1082 "obsolete (address mark not found)", 1083 "no media/write protected", "aborted command", 1084 "media change requested", "id not found", "media changed", 1085 "uncorrectable data error", "interface CRC error"}; 1086 const char *const *errstr; 1087 int i; 1088 char *sep = ""; 1089 1090 const char *devname = wd->sc_dev.dv_xname; 1091 struct ata_drive_datas *drvp = wd->drvp; 1092 int errno = wd->sc_wdc_bio.r_error; 1093 1094 if (drvp->ata_vers >= 4) 1095 errstr = errstr4_5; 1096 else 1097 errstr = errstr0_3; 1098 1099 printf("%s: (", devname); 1100 1101 if (errno == 0) 1102 printf("error not notified"); 1103 1104 for (i = 0; i < 8; i++) { 1105 if (errno & (1 << i)) { 1106 printf("%s%s", sep, errstr[i]); 1107 sep = ", "; 1108 } 1109 } 1110 printf(")\n"); 1111 } 1112 1113 int 1114 wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct proc *p) 1115 { 1116 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1117 int error = 0, s; 1118 #ifdef __HAVE_OLD_DISKLABEL 1119 struct disklabel *newlabel = NULL; 1120 #endif 1121 1122 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1123 1124 if ((wd->sc_flags & WDF_LOADED) == 0) 1125 return EIO; 1126 1127 switch (xfer) { 1128 #ifdef HAS_BAD144_HANDLING 1129 case DIOCSBAD: 1130 if ((flag & FWRITE) == 0) 1131 return EBADF; 1132 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1133 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1134 bad144intern(wd); 1135 return 0; 1136 #endif 1137 #ifdef WD_SOFTBADSECT 1138 case DIOCBSLIST : 1139 { 1140 u_int32_t count, missing, skip; 1141 struct disk_badsecinfo dbsi; 1142 struct disk_badsectors *dbs; 1143 size_t available; 1144 caddr_t laddr; 1145 1146 dbsi = *(struct disk_badsecinfo *)addr; 1147 missing = wd->sc_bscount; 1148 count = 0; 1149 available = dbsi.dbsi_bufsize; 1150 skip = dbsi.dbsi_skip; 1151 laddr = dbsi.dbsi_buffer; 1152 1153 /* 1154 * We start this loop with the expectation that all of the 1155 * entries will be missed and decrement this counter each 1156 * time we either skip over one (already copied out) or 1157 * we actually copy it back to user space. The structs 1158 * holding the bad sector information are copied directly 1159 * back to user space whilst the summary is returned via 1160 * the struct passed in via the ioctl. 1161 */ 1162 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1163 if (skip > 0) { 1164 missing--; 1165 skip--; 1166 continue; 1167 } 1168 if (available < sizeof(*dbs)) 1169 break; 1170 available -= sizeof(*dbs); 1171 copyout(dbs, laddr, sizeof(*dbs)); 1172 laddr += sizeof(*dbs); 1173 missing--; 1174 count++; 1175 } 1176 dbsi.dbsi_left = missing; 1177 dbsi.dbsi_copied = count; 1178 *(struct disk_badsecinfo *)addr = dbsi; 1179 return 0; 1180 } 1181 1182 case DIOCBSFLUSH : 1183 /* Clean out the bad sector list */ 1184 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1185 void *head = SLIST_FIRST(&wd->sc_bslist); 1186 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1187 free(head, M_TEMP); 1188 } 1189 wd->sc_bscount = 0; 1190 return 0; 1191 #endif 1192 case DIOCGDINFO: 1193 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1194 return 0; 1195 #ifdef __HAVE_OLD_DISKLABEL 1196 case ODIOCGDINFO: 1197 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1198 if (newlabel == NULL) 1199 return EIO; 1200 *newlabel = *(wd->sc_dk.dk_label); 1201 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1202 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1203 else 1204 error = ENOTTY; 1205 free(newlabel, M_TEMP); 1206 return error; 1207 #endif 1208 1209 case DIOCGPART: 1210 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1211 ((struct partinfo *)addr)->part = 1212 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1213 return 0; 1214 1215 case DIOCWDINFO: 1216 case DIOCSDINFO: 1217 #ifdef __HAVE_OLD_DISKLABEL 1218 case ODIOCWDINFO: 1219 case ODIOCSDINFO: 1220 #endif 1221 { 1222 struct disklabel *lp; 1223 1224 if ((flag & FWRITE) == 0) 1225 return EBADF; 1226 1227 #ifdef __HAVE_OLD_DISKLABEL 1228 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1229 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1230 if (newlabel == NULL) 1231 return EIO; 1232 memset(newlabel, 0, sizeof newlabel); 1233 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1234 lp = newlabel; 1235 } else 1236 #endif 1237 lp = (struct disklabel *)addr; 1238 1239 if ((error = lockmgr(&wd->sc_lock, LK_EXCLUSIVE, NULL)) != 0) 1240 goto bad; 1241 wd->sc_flags |= WDF_LABELLING; 1242 1243 error = setdisklabel(wd->sc_dk.dk_label, 1244 lp, /*wd->sc_dk.dk_openmask : */0, 1245 wd->sc_dk.dk_cpulabel); 1246 if (error == 0) { 1247 if (wd->drvp->state > RESET) { 1248 s = splbio(); 1249 wd->drvp->drive_flags |= DRIVE_RESET; 1250 splx(s); 1251 } 1252 if (xfer == DIOCWDINFO 1253 #ifdef __HAVE_OLD_DISKLABEL 1254 || xfer == ODIOCWDINFO 1255 #endif 1256 ) 1257 error = writedisklabel(WDLABELDEV(dev), 1258 wdstrategy, wd->sc_dk.dk_label, 1259 wd->sc_dk.dk_cpulabel); 1260 } 1261 1262 wd->sc_flags &= ~WDF_LABELLING; 1263 lockmgr(&wd->sc_lock, LK_RELEASE, NULL); 1264 bad: 1265 #ifdef __HAVE_OLD_DISKLABEL 1266 if (newlabel != NULL) 1267 free(newlabel, M_TEMP); 1268 #endif 1269 return error; 1270 } 1271 1272 case DIOCKLABEL: 1273 if (*(int *)addr) 1274 wd->sc_flags |= WDF_KLABEL; 1275 else 1276 wd->sc_flags &= ~WDF_KLABEL; 1277 return 0; 1278 1279 case DIOCWLABEL: 1280 if ((flag & FWRITE) == 0) 1281 return EBADF; 1282 if (*(int *)addr) 1283 wd->sc_flags |= WDF_WLABEL; 1284 else 1285 wd->sc_flags &= ~WDF_WLABEL; 1286 return 0; 1287 1288 case DIOCGDEFLABEL: 1289 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1290 return 0; 1291 #ifdef __HAVE_OLD_DISKLABEL 1292 case ODIOCGDEFLABEL: 1293 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1294 if (newlabel == NULL) 1295 return EIO; 1296 wdgetdefaultlabel(wd, newlabel); 1297 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1298 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1299 else 1300 error = ENOTTY; 1301 free(newlabel, M_TEMP); 1302 return error; 1303 #endif 1304 1305 #ifdef notyet 1306 case DIOCWFORMAT: 1307 if ((flag & FWRITE) == 0) 1308 return EBADF; 1309 { 1310 register struct format_op *fop; 1311 struct iovec aiov; 1312 struct uio auio; 1313 1314 fop = (struct format_op *)addr; 1315 aiov.iov_base = fop->df_buf; 1316 aiov.iov_len = fop->df_count; 1317 auio.uio_iov = &aiov; 1318 auio.uio_iovcnt = 1; 1319 auio.uio_resid = fop->df_count; 1320 auio.uio_segflg = 0; 1321 auio.uio_offset = 1322 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1323 auio.uio_procp = p; 1324 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1325 &auio); 1326 fop->df_count -= auio.uio_resid; 1327 fop->df_reg[0] = wdc->sc_status; 1328 fop->df_reg[1] = wdc->sc_error; 1329 return error; 1330 } 1331 #endif 1332 case DIOCGCACHE: 1333 return wd_getcache(wd, (int *)addr); 1334 1335 case DIOCSCACHE: 1336 return wd_setcache(wd, *(int *)addr); 1337 1338 case DIOCCACHESYNC: 1339 return wd_flushcache(wd, AT_WAIT); 1340 1341 case ATAIOCCOMMAND: 1342 /* 1343 * Make sure this command is (relatively) safe first 1344 */ 1345 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1346 (flag & FWRITE) == 0) 1347 return (EBADF); 1348 { 1349 struct wd_ioctl *wi; 1350 atareq_t *atareq = (atareq_t *) addr; 1351 int error; 1352 1353 wi = wi_get(); 1354 wi->wi_softc = wd; 1355 wi->wi_atareq = *atareq; 1356 1357 if (atareq->datalen && atareq->flags & 1358 (ATACMD_READ | ATACMD_WRITE)) { 1359 wi->wi_iov.iov_base = atareq->databuf; 1360 wi->wi_iov.iov_len = atareq->datalen; 1361 wi->wi_uio.uio_iov = &wi->wi_iov; 1362 wi->wi_uio.uio_iovcnt = 1; 1363 wi->wi_uio.uio_resid = atareq->datalen; 1364 wi->wi_uio.uio_offset = 0; 1365 wi->wi_uio.uio_segflg = UIO_USERSPACE; 1366 wi->wi_uio.uio_rw = 1367 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1368 wi->wi_uio.uio_procp = p; 1369 error = physio(wdioctlstrategy, &wi->wi_bp, dev, 1370 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1371 minphys, &wi->wi_uio); 1372 } else { 1373 /* No need to call physio if we don't have any 1374 user data */ 1375 wi->wi_bp.b_flags = 0; 1376 wi->wi_bp.b_data = 0; 1377 wi->wi_bp.b_bcount = 0; 1378 wi->wi_bp.b_dev = 0; 1379 wi->wi_bp.b_proc = p; 1380 wdioctlstrategy(&wi->wi_bp); 1381 error = wi->wi_bp.b_error; 1382 } 1383 *atareq = wi->wi_atareq; 1384 wi_free(wi); 1385 return(error); 1386 } 1387 1388 default: 1389 return ENOTTY; 1390 } 1391 1392 #ifdef DIAGNOSTIC 1393 panic("wdioctl: impossible"); 1394 #endif 1395 } 1396 1397 #ifdef B_FORMAT 1398 int 1399 wdformat(struct buf *bp) 1400 { 1401 1402 bp->b_flags |= B_FORMAT; 1403 return wdstrategy(bp); 1404 } 1405 #endif 1406 1407 int 1408 wdsize(dev_t dev) 1409 { 1410 struct wd_softc *wd; 1411 int part, omask; 1412 int size; 1413 1414 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1415 1416 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1417 if (wd == NULL) 1418 return (-1); 1419 1420 part = WDPART(dev); 1421 omask = wd->sc_dk.dk_openmask & (1 << part); 1422 1423 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1424 return (-1); 1425 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1426 size = -1; 1427 else 1428 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1429 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1430 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1431 return (-1); 1432 return (size); 1433 } 1434 1435 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1436 static int wddoingadump = 0; 1437 static int wddumprecalibrated = 0; 1438 static int wddumpmulti = 1; 1439 1440 /* 1441 * Dump core after a system crash. 1442 */ 1443 int 1444 wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1445 { 1446 struct wd_softc *wd; /* disk unit to do the I/O */ 1447 struct disklabel *lp; /* disk's disklabel */ 1448 int part, err; 1449 int nblks; /* total number of sectors left to write */ 1450 1451 /* Check if recursive dump; if so, punt. */ 1452 if (wddoingadump) 1453 return EFAULT; 1454 wddoingadump = 1; 1455 1456 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1457 if (wd == NULL) 1458 return (ENXIO); 1459 1460 part = WDPART(dev); 1461 1462 /* Convert to disk sectors. Request must be a multiple of size. */ 1463 lp = wd->sc_dk.dk_label; 1464 if ((size % lp->d_secsize) != 0) 1465 return EFAULT; 1466 nblks = size / lp->d_secsize; 1467 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1468 1469 /* Check transfer bounds against partition size. */ 1470 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1471 return EINVAL; 1472 1473 /* Offset block number to start of partition. */ 1474 blkno += lp->d_partitions[part].p_offset; 1475 1476 /* Recalibrate, if first dump transfer. */ 1477 if (wddumprecalibrated == 0) { 1478 wddumpmulti = wd->sc_multi; 1479 wddumprecalibrated = 1; 1480 (*wd->atabus->ata_reset_drive)(wd->drvp, 1481 AT_POLL | AT_RST_EMERG); 1482 wd->drvp->state = RESET; 1483 } 1484 1485 while (nblks > 0) { 1486 wd->sc_bp = NULL; 1487 wd->sc_wdc_bio.blkno = blkno; 1488 wd->sc_wdc_bio.flags = ATA_POLL; 1489 if (wd->sc_flags & WDF_LBA48 && blkno > LBA48_THRESHOLD) 1490 wd->sc_wdc_bio.flags |= ATA_LBA48; 1491 if (wd->sc_flags & WDF_LBA) 1492 wd->sc_wdc_bio.flags |= ATA_LBA; 1493 wd->sc_wdc_bio.bcount = 1494 min(nblks, wddumpmulti) * lp->d_secsize; 1495 wd->sc_wdc_bio.databuf = va; 1496 #ifndef WD_DUMP_NOT_TRUSTED 1497 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1498 case ATACMD_TRY_AGAIN: 1499 panic("wddump: try again"); 1500 break; 1501 case ATACMD_QUEUED: 1502 panic("wddump: polled command has been queued"); 1503 break; 1504 case ATACMD_COMPLETE: 1505 break; 1506 } 1507 switch(wd->sc_wdc_bio.error) { 1508 case TIMEOUT: 1509 printf("wddump: device timed out"); 1510 err = EIO; 1511 break; 1512 case ERR_DF: 1513 printf("wddump: drive fault"); 1514 err = EIO; 1515 break; 1516 case ERR_DMA: 1517 printf("wddump: DMA error"); 1518 err = EIO; 1519 break; 1520 case ERROR: 1521 printf("wddump: "); 1522 wdperror(wd); 1523 err = EIO; 1524 break; 1525 case NOERROR: 1526 err = 0; 1527 break; 1528 default: 1529 panic("wddump: unknown error type"); 1530 } 1531 if (err != 0) { 1532 printf("\n"); 1533 return err; 1534 } 1535 #else /* WD_DUMP_NOT_TRUSTED */ 1536 /* Let's just talk about this first... */ 1537 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1538 unit, va, cylin, head, sector); 1539 delay(500 * 1000); /* half a second */ 1540 #endif 1541 1542 /* update block count */ 1543 nblks -= min(nblks, wddumpmulti); 1544 blkno += min(nblks, wddumpmulti); 1545 va += min(nblks, wddumpmulti) * lp->d_secsize; 1546 } 1547 1548 wddoingadump = 0; 1549 return 0; 1550 } 1551 1552 #ifdef HAS_BAD144_HANDLING 1553 /* 1554 * Internalize the bad sector table. 1555 */ 1556 void 1557 bad144intern(struct wd_softc *wd) 1558 { 1559 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1560 struct disklabel *lp = wd->sc_dk.dk_label; 1561 int i = 0; 1562 1563 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1564 1565 for (; i < NBT_BAD; i++) { 1566 if (bt->bt_bad[i].bt_cyl == 0xffff) 1567 break; 1568 wd->sc_badsect[i] = 1569 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1570 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1571 (bt->bt_bad[i].bt_trksec & 0xff); 1572 } 1573 for (; i < NBT_BAD+1; i++) 1574 wd->sc_badsect[i] = -1; 1575 } 1576 #endif 1577 1578 int 1579 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1580 { 1581 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1582 case CMD_AGAIN: 1583 return 1; 1584 case CMD_ERR: 1585 /* 1586 * We `know' there's a drive here; just assume it's old. 1587 * This geometry is only used to read the MBR and print a 1588 * (false) attach message. 1589 */ 1590 strncpy(params->atap_model, "ST506", 1591 sizeof params->atap_model); 1592 params->atap_config = ATA_CFG_FIXED; 1593 params->atap_cylinders = 1024; 1594 params->atap_heads = 8; 1595 params->atap_sectors = 17; 1596 params->atap_multi = 1; 1597 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1598 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1599 return 0; 1600 case CMD_OK: 1601 return 0; 1602 default: 1603 panic("wd_get_params: bad return code from ata_get_params"); 1604 /* NOTREACHED */ 1605 } 1606 } 1607 1608 int 1609 wd_getcache(struct wd_softc *wd, int *bitsp) 1610 { 1611 struct ataparams params; 1612 1613 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1614 return EIO; 1615 if (params.atap_cmd_set1 == 0x0000 || 1616 params.atap_cmd_set1 == 0xffff || 1617 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1618 *bitsp = 0; 1619 return 0; 1620 } 1621 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1622 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1623 *bitsp |= DKCACHE_WRITE; 1624 1625 return 0; 1626 } 1627 1628 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1629 1630 int 1631 wd_setcache(struct wd_softc *wd, int bits) 1632 { 1633 struct ataparams params; 1634 struct ata_command ata_c; 1635 1636 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1637 return EIO; 1638 1639 if (params.atap_cmd_set1 == 0x0000 || 1640 params.atap_cmd_set1 == 0xffff || 1641 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1642 return EOPNOTSUPP; 1643 1644 if ((bits & DKCACHE_READ) == 0 || 1645 (bits & DKCACHE_SAVE) != 0) 1646 return EOPNOTSUPP; 1647 1648 memset(&ata_c, 0, sizeof(struct ata_command)); 1649 ata_c.r_command = SET_FEATURES; 1650 ata_c.r_st_bmask = 0; 1651 ata_c.r_st_pmask = 0; 1652 ata_c.timeout = 30000; /* 30s timeout */ 1653 ata_c.flags = AT_WAIT; 1654 if (bits & DKCACHE_WRITE) 1655 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1656 else 1657 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1658 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1659 printf("%s: wd_setcache command not complete\n", 1660 wd->sc_dev.dv_xname); 1661 return EIO; 1662 } 1663 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1664 char sbuf[sizeof(at_errbits) + 64]; 1665 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1666 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1667 sbuf); 1668 return EIO; 1669 } 1670 return 0; 1671 } 1672 1673 int 1674 wd_standby(struct wd_softc *wd, int flags) 1675 { 1676 struct ata_command ata_c; 1677 1678 memset(&ata_c, 0, sizeof(struct ata_command)); 1679 ata_c.r_command = WDCC_STANDBY_IMMED; 1680 ata_c.r_st_bmask = WDCS_DRDY; 1681 ata_c.r_st_pmask = WDCS_DRDY; 1682 ata_c.flags = flags; 1683 ata_c.timeout = 30000; /* 30s timeout */ 1684 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1685 printf("%s: standby immediate command didn't complete\n", 1686 wd->sc_dev.dv_xname); 1687 return EIO; 1688 } 1689 if (ata_c.flags & AT_ERROR) { 1690 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1691 return ENODEV; 1692 } 1693 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1694 char sbuf[sizeof(at_errbits) + 64]; 1695 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1696 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1697 sbuf); 1698 return EIO; 1699 } 1700 return 0; 1701 } 1702 1703 int 1704 wd_flushcache(struct wd_softc *wd, int flags) 1705 { 1706 struct ata_command ata_c; 1707 1708 if (wd->drvp->ata_vers < 4) /* WDCC_FLUSHCACHE is here since ATA-4 */ 1709 return ENODEV; 1710 memset(&ata_c, 0, sizeof(struct ata_command)); 1711 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1712 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1713 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1714 else 1715 ata_c.r_command = WDCC_FLUSHCACHE; 1716 ata_c.r_st_bmask = WDCS_DRDY; 1717 ata_c.r_st_pmask = WDCS_DRDY; 1718 ata_c.flags = flags; 1719 ata_c.timeout = 30000; /* 30s timeout */ 1720 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1721 printf("%s: flush cache command didn't complete\n", 1722 wd->sc_dev.dv_xname); 1723 return EIO; 1724 } 1725 if (ata_c.flags & AT_ERROR) { 1726 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1727 return ENODEV; 1728 } 1729 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1730 char sbuf[sizeof(at_errbits) + 64]; 1731 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1732 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1733 sbuf); 1734 return EIO; 1735 } 1736 return 0; 1737 } 1738 1739 void 1740 wd_shutdown(void *arg) 1741 { 1742 struct wd_softc *wd = arg; 1743 wd_flushcache(wd, AT_POLL); 1744 } 1745 1746 /* 1747 * Allocate space for a ioctl queue structure. Mostly taken from 1748 * scsipi_ioctl.c 1749 */ 1750 struct wd_ioctl * 1751 wi_get(void) 1752 { 1753 struct wd_ioctl *wi; 1754 int s; 1755 1756 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1757 simple_lock_init(&wi->wi_bp.b_interlock); 1758 s = splbio(); 1759 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1760 splx(s); 1761 return (wi); 1762 } 1763 1764 /* 1765 * Free an ioctl structure and remove it from our list 1766 */ 1767 1768 void 1769 wi_free(struct wd_ioctl *wi) 1770 { 1771 int s; 1772 1773 s = splbio(); 1774 LIST_REMOVE(wi, wi_list); 1775 splx(s); 1776 free(wi, M_TEMP); 1777 } 1778 1779 /* 1780 * Find a wd_ioctl structure based on the struct buf. 1781 */ 1782 1783 struct wd_ioctl * 1784 wi_find(struct buf *bp) 1785 { 1786 struct wd_ioctl *wi; 1787 int s; 1788 1789 s = splbio(); 1790 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1791 if (bp == &wi->wi_bp) 1792 break; 1793 splx(s); 1794 return (wi); 1795 } 1796 1797 /* 1798 * Ioctl pseudo strategy routine 1799 * 1800 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1801 * happens here is: 1802 * 1803 * - wdioctl() queues a wd_ioctl structure. 1804 * 1805 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1806 * user space I/O is required. If physio() is called, physio() eventually 1807 * calls wdioctlstrategy(). 1808 * 1809 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 1810 * to perform the actual command 1811 * 1812 * The reason for the use of the pseudo strategy routine is because 1813 * when doing I/O to/from user space, physio _really_ wants to be in 1814 * the loop. We could put the entire buffer into the ioctl request 1815 * structure, but that won't scale if we want to do things like download 1816 * microcode. 1817 */ 1818 1819 void 1820 wdioctlstrategy(struct buf *bp) 1821 { 1822 struct wd_ioctl *wi; 1823 struct ata_command ata_c; 1824 int error = 0; 1825 1826 wi = wi_find(bp); 1827 if (wi == NULL) { 1828 printf("user_strat: No ioctl\n"); 1829 error = EINVAL; 1830 goto bad; 1831 } 1832 1833 memset(&ata_c, 0, sizeof(ata_c)); 1834 1835 /* 1836 * Abort if physio broke up the transfer 1837 */ 1838 1839 if (bp->b_bcount != wi->wi_atareq.datalen) { 1840 printf("physio split wd ioctl request... cannot proceed\n"); 1841 error = EIO; 1842 goto bad; 1843 } 1844 1845 /* 1846 * Abort if we didn't get a buffer size that was a multiple of 1847 * our sector size (or was larger than NBBY) 1848 */ 1849 1850 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 1851 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 1852 (1 << NBBY)) { 1853 error = EINVAL; 1854 goto bad; 1855 } 1856 1857 /* 1858 * Make sure a timeout was supplied in the ioctl request 1859 */ 1860 1861 if (wi->wi_atareq.timeout == 0) { 1862 error = EINVAL; 1863 goto bad; 1864 } 1865 1866 if (wi->wi_atareq.flags & ATACMD_READ) 1867 ata_c.flags |= AT_READ; 1868 else if (wi->wi_atareq.flags & ATACMD_WRITE) 1869 ata_c.flags |= AT_WRITE; 1870 1871 if (wi->wi_atareq.flags & ATACMD_READREG) 1872 ata_c.flags |= AT_READREG; 1873 1874 ata_c.flags |= AT_WAIT; 1875 1876 ata_c.timeout = wi->wi_atareq.timeout; 1877 ata_c.r_command = wi->wi_atareq.command; 1878 ata_c.r_head = wi->wi_atareq.head & 0x0f; 1879 ata_c.r_cyl = wi->wi_atareq.cylinder; 1880 ata_c.r_sector = wi->wi_atareq.sec_num; 1881 ata_c.r_count = wi->wi_atareq.sec_count; 1882 ata_c.r_features = wi->wi_atareq.features; 1883 ata_c.r_st_bmask = WDCS_DRDY; 1884 ata_c.r_st_pmask = WDCS_DRDY; 1885 ata_c.data = wi->wi_bp.b_data; 1886 ata_c.bcount = wi->wi_bp.b_bcount; 1887 1888 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 1889 != ATACMD_COMPLETE) { 1890 wi->wi_atareq.retsts = ATACMD_ERROR; 1891 goto bad; 1892 } 1893 1894 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1895 if (ata_c.flags & AT_ERROR) { 1896 wi->wi_atareq.retsts = ATACMD_ERROR; 1897 wi->wi_atareq.error = ata_c.r_error; 1898 } else if (ata_c.flags & AT_DF) 1899 wi->wi_atareq.retsts = ATACMD_DF; 1900 else 1901 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 1902 } else { 1903 wi->wi_atareq.retsts = ATACMD_OK; 1904 if (wi->wi_atareq.flags & ATACMD_READREG) { 1905 wi->wi_atareq.head = ata_c.r_head ; 1906 wi->wi_atareq.cylinder = ata_c.r_cyl; 1907 wi->wi_atareq.sec_num = ata_c.r_sector; 1908 wi->wi_atareq.sec_count = ata_c.r_count; 1909 wi->wi_atareq.features = ata_c.r_features; 1910 wi->wi_atareq.error = ata_c.r_error; 1911 } 1912 } 1913 1914 bp->b_error = 0; 1915 biodone(bp); 1916 return; 1917 bad: 1918 bp->b_flags |= B_ERROR; 1919 bp->b_error = error; 1920 biodone(bp); 1921 } 1922
Indexes created Sat Sep 27 22:09:54 GMT 2025