wd.c revision 1.335.2.2
1 /* $NetBSD: wd.c,v 1.335.2.2 2008/03/30 14:45:03 jdc 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 1.335.2.2 2008/03/30 14:45:03 jdc 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/bufq.h> 86 #include <sys/uio.h> 87 #include <sys/malloc.h> 88 #include <sys/device.h> 89 #include <sys/disklabel.h> 90 #include <sys/disk.h> 91 #include <sys/syslog.h> 92 #include <sys/proc.h> 93 #include <sys/vnode.h> 94 #if NRND > 0 95 #include <sys/rnd.h> 96 #endif 97 98 #include <machine/intr.h> 99 #include <machine/bus.h> 100 101 #include <dev/ata/atareg.h> 102 #include <dev/ata/atavar.h> 103 #include <dev/ata/wdvar.h> 104 #include <dev/ic/wdcreg.h> 105 #include <sys/ataio.h> 106 #include "locators.h" 107 108 #include <prop/proplib.h> 109 110 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 111 112 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 113 #define WDIORETRIES 5 /* number of retries before giving up */ 114 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 115 116 #define WDUNIT(dev) DISKUNIT(dev) 117 #define WDPART(dev) DISKPART(dev) 118 #define WDMINOR(unit, part) DISKMINOR(unit, part) 119 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 120 121 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 122 123 #define DEBUG_INTR 0x01 124 #define DEBUG_XFERS 0x02 125 #define DEBUG_STATUS 0x04 126 #define DEBUG_FUNCS 0x08 127 #define DEBUG_PROBE 0x10 128 #ifdef ATADEBUG 129 int wdcdebug_wd_mask = 0x0; 130 #define ATADEBUG_PRINT(args, level) \ 131 if (wdcdebug_wd_mask & (level)) \ 132 printf args 133 #else 134 #define ATADEBUG_PRINT(args, level) 135 #endif 136 137 int wdprobe(struct device *, struct cfdata *, void *); 138 void wdattach(struct device *, struct device *, void *); 139 int wddetach(struct device *, int); 140 int wdactivate(struct device *, enum devact); 141 int wdprint(void *, char *); 142 void wdperror(const struct wd_softc *); 143 144 CFATTACH_DECL(wd, sizeof(struct wd_softc), 145 wdprobe, wdattach, wddetach, wdactivate); 146 147 extern struct cfdriver wd_cd; 148 149 dev_type_open(wdopen); 150 dev_type_close(wdclose); 151 dev_type_read(wdread); 152 dev_type_write(wdwrite); 153 dev_type_ioctl(wdioctl); 154 dev_type_strategy(wdstrategy); 155 dev_type_dump(wddump); 156 dev_type_size(wdsize); 157 158 const struct bdevsw wd_bdevsw = { 159 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 160 }; 161 162 const struct cdevsw wd_cdevsw = { 163 wdopen, wdclose, wdread, wdwrite, wdioctl, 164 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 165 }; 166 167 /* 168 * Glue necessary to hook WDCIOCCOMMAND into physio 169 */ 170 171 struct wd_ioctl { 172 LIST_ENTRY(wd_ioctl) wi_list; 173 struct buf wi_bp; 174 struct uio wi_uio; 175 struct iovec wi_iov; 176 atareq_t wi_atareq; 177 struct wd_softc *wi_softc; 178 }; 179 180 LIST_HEAD(, wd_ioctl) wi_head; 181 182 struct wd_ioctl *wi_find(struct buf *); 183 void wi_free(struct wd_ioctl *); 184 struct wd_ioctl *wi_get(void); 185 void wdioctlstrategy(struct buf *); 186 187 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 188 void wdgetdisklabel(struct wd_softc *); 189 void wdstart(void *); 190 void __wdstart(struct wd_softc*, struct buf *); 191 void wdrestart(void *); 192 void wddone(void *); 193 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 194 int wd_standby(struct wd_softc *, int); 195 int wd_flushcache(struct wd_softc *, int); 196 void wd_shutdown(void *); 197 198 int wd_getcache(struct wd_softc *, int *); 199 int wd_setcache(struct wd_softc *, int); 200 201 struct dkdriver wddkdriver = { wdstrategy, minphys }; 202 203 #ifdef HAS_BAD144_HANDLING 204 static void bad144intern(struct wd_softc *); 205 #endif 206 207 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 208 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 209 210 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 211 212 /* 213 * Quirk table for IDE drives. Put more-specific matches first, since 214 * a simple globbing routine is used for matching. 215 */ 216 static const struct wd_quirk { 217 const char *wdq_match; /* inquiry pattern to match */ 218 int wdq_quirks; /* drive quirks */ 219 } wd_quirk_table[] = { 220 /* 221 * Some Seagate S-ATA drives have a PHY which can get confused 222 * with the way data is packetized by some S-ATA controllers. 223 * 224 * The work-around is to split in two any write transfer whose 225 * sector count % 15 == 1 (assuming 512 byte sectors). 226 * 227 * XXX This is an incomplete list. There are at least a couple 228 * XXX more model numbers. If you have trouble with such transfers 229 * XXX (8K is the most common) on Seagate S-ATA drives, please 230 * XXX notify thorpej (at) NetBSD.org. 231 */ 232 { "ST3120023AS", 233 WD_QUIRK_SPLIT_MOD15_WRITE }, 234 { "ST380023AS", 235 WD_QUIRK_SPLIT_MOD15_WRITE }, 236 237 /* 238 * These seagate drives seems to have issue addressing sector 0xfffffff 239 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 240 * LBA48 241 * Note that we can't just change the code to always use LBA48 for 242 * sector 0xfffffff, because this would break valid and working 243 * setups using LBA48 drives on non-LBA48-capable controllers 244 * (and it's hard to get a list of such controllers) 245 */ 246 { "ST3160021A*", 247 WD_QUIRK_FORCE_LBA48 }, 248 { "ST3160811A*", 249 WD_QUIRK_FORCE_LBA48 }, 250 { "ST3160812A*", 251 WD_QUIRK_FORCE_LBA48 }, 252 { "ST3160023A*", 253 WD_QUIRK_FORCE_LBA48 }, 254 { "ST3160827A*", 255 WD_QUIRK_FORCE_LBA48 }, 256 /* Attempt to catch all seagate drives larger than 200GB */ 257 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 258 WD_QUIRK_FORCE_LBA48 }, 259 { NULL, 260 0 } 261 }; 262 263 static const struct wd_quirk * 264 wd_lookup_quirks(const char *name) 265 { 266 const struct wd_quirk *wdq; 267 const char *estr; 268 269 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 270 /* 271 * We only want exact matches (which include matches 272 * against globbing characters). 273 */ 274 if (pmatch(name, wdq->wdq_match, &estr) == 2) 275 return (wdq); 276 } 277 return (NULL); 278 } 279 280 int 281 wdprobe(struct device *parent, struct cfdata *match, void *aux) 282 { 283 struct ata_device *adev = aux; 284 285 if (adev == NULL) 286 return 0; 287 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 288 return 0; 289 290 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 291 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 292 return 0; 293 return 1; 294 } 295 296 void 297 wdattach(struct device *parent, struct device *self, void *aux) 298 { 299 struct wd_softc *wd = (void *)self; 300 struct ata_device *adev= aux; 301 int i, blank; 302 char tbuf[41], pbuf[9], c, *p, *q; 303 const struct wd_quirk *wdq; 304 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 305 306 callout_init(&wd->sc_restart_ch); 307 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 308 #ifdef WD_SOFTBADSECT 309 SLIST_INIT(&wd->sc_bslist); 310 #endif 311 wd->atabus = adev->adev_bustype; 312 wd->openings = adev->adev_openings; 313 wd->drvp = adev->adev_drv_data; 314 315 wd->drvp->drv_done = wddone; 316 wd->drvp->drv_softc = &wd->sc_dev; 317 318 aprint_naive("\n"); 319 320 /* read our drive info */ 321 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 322 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 323 return; 324 } 325 326 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 327 i < sizeof(wd->sc_params.atap_model); i++) { 328 c = *p++; 329 if (c == '\0') 330 break; 331 if (c != ' ') { 332 if (blank) { 333 *q++ = ' '; 334 blank = 0; 335 } 336 *q++ = c; 337 } else 338 blank = 1; 339 } 340 *q++ = '\0'; 341 342 aprint_normal(": <%s>\n", tbuf); 343 344 wdq = wd_lookup_quirks(tbuf); 345 if (wdq != NULL) 346 wd->sc_quirks = wdq->wdq_quirks; 347 348 if (wd->sc_quirks != 0) { 349 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 350 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 351 sbuf, sizeof(sbuf)); 352 aprint_normal("%s: quirks %s\n", wd->sc_dev.dv_xname, sbuf); 353 } 354 355 if ((wd->sc_params.atap_multi & 0xff) > 1) { 356 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 357 } else { 358 wd->sc_multi = 1; 359 } 360 361 aprint_normal("%s: drive supports %d-sector PIO transfers,", 362 wd->sc_dev.dv_xname, wd->sc_multi); 363 364 /* 48-bit LBA addressing */ 365 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 366 wd->sc_flags |= WDF_LBA48; 367 368 /* Prior to ATA-4, LBA was optional. */ 369 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 370 wd->sc_flags |= WDF_LBA; 371 #if 0 372 /* ATA-4 requires LBA. */ 373 if (wd->sc_params.atap_ataversion != 0xffff && 374 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 375 wd->sc_flags |= WDF_LBA; 376 #endif 377 378 if ((wd->sc_flags & WDF_LBA48) != 0) { 379 aprint_normal(" LBA48 addressing\n"); 380 wd->sc_capacity = 381 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 382 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 383 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 384 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 385 } else if ((wd->sc_flags & WDF_LBA) != 0) { 386 aprint_normal(" LBA addressing\n"); 387 wd->sc_capacity = 388 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 389 wd->sc_params.atap_capacity[0]; 390 } else { 391 aprint_normal(" chs addressing\n"); 392 wd->sc_capacity = 393 wd->sc_params.atap_cylinders * 394 wd->sc_params.atap_heads * 395 wd->sc_params.atap_sectors; 396 } 397 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 398 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 399 "%d bytes/sect x %llu sectors\n", 400 self->dv_xname, pbuf, 401 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 402 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 403 wd->sc_params.atap_cylinders, 404 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 405 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 406 407 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 408 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 409 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 410 /* 411 * Initialize and attach the disk structure. 412 */ 413 wd->sc_dk.dk_driver = &wddkdriver; 414 wd->sc_dk.dk_name = wd->sc_dev.dv_xname; 415 /* we fill in dk_info later */ 416 disk_attach(&wd->sc_dk); 417 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 418 wd->sc_sdhook = shutdownhook_establish(wd_shutdown, wd); 419 if (wd->sc_sdhook == NULL) 420 aprint_error("%s: WARNING: unable to establish shutdown hook\n", 421 wd->sc_dev.dv_xname); 422 #if NRND > 0 423 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 424 RND_TYPE_DISK, 0); 425 #endif 426 427 /* Discover wedges on this disk. */ 428 dkwedge_discover(&wd->sc_dk); 429 } 430 431 int 432 wdactivate(struct device *self, enum devact act) 433 { 434 int rv = 0; 435 436 switch (act) { 437 case DVACT_ACTIVATE: 438 rv = EOPNOTSUPP; 439 break; 440 441 case DVACT_DEACTIVATE: 442 /* 443 * Nothing to do; we key off the device's DVF_ACTIVATE. 444 */ 445 break; 446 } 447 return (rv); 448 } 449 450 int 451 wddetach(struct device *self, int flags) 452 { 453 struct wd_softc *sc = (struct wd_softc *)self; 454 int s, bmaj, cmaj, i, mn; 455 456 /* locate the major number */ 457 bmaj = bdevsw_lookup_major(&wd_bdevsw); 458 cmaj = cdevsw_lookup_major(&wd_cdevsw); 459 460 /* Nuke the vnodes for any open instances. */ 461 for (i = 0; i < MAXPARTITIONS; i++) { 462 mn = WDMINOR(device_unit(self), i); 463 vdevgone(bmaj, mn, mn, VBLK); 464 vdevgone(cmaj, mn, mn, VCHR); 465 } 466 467 /* Delete all of our wedges. */ 468 dkwedge_delall(&sc->sc_dk); 469 470 s = splbio(); 471 472 /* Kill off any queued buffers. */ 473 bufq_drain(sc->sc_q); 474 475 bufq_free(sc->sc_q); 476 sc->atabus->ata_killpending(sc->drvp); 477 478 splx(s); 479 480 /* Detach disk. */ 481 disk_detach(&sc->sc_dk); 482 483 #ifdef WD_SOFTBADSECT 484 /* Clean out the bad sector list */ 485 while (!SLIST_EMPTY(&sc->sc_bslist)) { 486 void *head = SLIST_FIRST(&sc->sc_bslist); 487 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 488 free(head, M_TEMP); 489 } 490 sc->sc_bscount = 0; 491 #endif 492 493 /* Get rid of the shutdown hook. */ 494 if (sc->sc_sdhook != NULL) 495 shutdownhook_disestablish(sc->sc_sdhook); 496 497 #if NRND > 0 498 /* Unhook the entropy source. */ 499 rnd_detach_source(&sc->rnd_source); 500 #endif 501 502 sc->drvp->drive_flags = 0; /* no drive any more here */ 503 504 return (0); 505 } 506 507 /* 508 * Read/write routine for a buffer. Validates the arguments and schedules the 509 * transfer. Does not wait for the transfer to complete. 510 */ 511 void 512 wdstrategy(struct buf *bp) 513 { 514 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 515 struct disklabel *lp = wd->sc_dk.dk_label; 516 daddr_t blkno; 517 int s; 518 519 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 520 DEBUG_XFERS); 521 522 /* Valid request? */ 523 if (bp->b_blkno < 0 || 524 (bp->b_bcount % lp->d_secsize) != 0 || 525 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 526 bp->b_error = EINVAL; 527 goto bad; 528 } 529 530 /* If device invalidated (e.g. media change, door open), error. */ 531 if ((wd->sc_flags & WDF_LOADED) == 0) { 532 bp->b_error = EIO; 533 goto bad; 534 } 535 536 /* If it's a null transfer, return immediately. */ 537 if (bp->b_bcount == 0) 538 goto done; 539 540 /* 541 * Do bounds checking, adjust transfer. if error, process. 542 * If end of partition, just return. 543 */ 544 if (WDPART(bp->b_dev) == RAW_PART) { 545 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 546 wd->sc_capacity) <= 0) 547 goto done; 548 } else { 549 if (bounds_check_with_label(&wd->sc_dk, bp, 550 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 551 goto done; 552 } 553 554 /* 555 * Now convert the block number to absolute and put it in 556 * terms of the device's logical block size. 557 */ 558 if (lp->d_secsize >= DEV_BSIZE) 559 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 560 else 561 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 562 563 if (WDPART(bp->b_dev) != RAW_PART) 564 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 565 566 bp->b_rawblkno = blkno; 567 568 #ifdef WD_SOFTBADSECT 569 /* 570 * If the transfer about to be attempted contains only a block that 571 * is known to be bad then return an error for the transfer without 572 * even attempting to start a transfer up under the premis that we 573 * will just end up doing more retries for a transfer that will end 574 * up failing again. 575 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 576 */ 577 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 578 struct disk_badsectors *dbs; 579 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 580 581 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 582 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 583 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 584 bp->b_error = EIO; 585 goto bad; 586 } 587 } 588 #endif 589 590 /* Queue transfer on drive, activate drive and controller if idle. */ 591 s = splbio(); 592 BUFQ_PUT(wd->sc_q, bp); 593 wdstart(wd); 594 splx(s); 595 return; 596 bad: 597 bp->b_flags |= B_ERROR; 598 done: 599 /* Toss transfer; we're done early. */ 600 bp->b_resid = bp->b_bcount; 601 biodone(bp); 602 } 603 604 /* 605 * Queue a drive for I/O. 606 */ 607 void 608 wdstart(void *arg) 609 { 610 struct wd_softc *wd = arg; 611 struct buf *bp = NULL; 612 613 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 614 DEBUG_XFERS); 615 while (wd->openings > 0) { 616 617 /* Is there a buf for us ? */ 618 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 619 return; 620 621 /* 622 * Make the command. First lock the device 623 */ 624 wd->openings--; 625 626 wd->retries = 0; 627 __wdstart(wd, bp); 628 } 629 } 630 631 static void 632 wd_split_mod15_write(struct buf *bp) 633 { 634 struct buf *obp = bp->b_private; 635 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 636 637 if (__predict_false(bp->b_flags & B_ERROR) != 0) { 638 /* 639 * Propagate the error. If this was the first half of 640 * the original transfer, make sure to account for that 641 * in the residual. 642 */ 643 if (bp->b_data == obp->b_data) 644 bp->b_resid += bp->b_bcount; 645 goto done; 646 } 647 648 /* 649 * If this was the second half of the transfer, we're all done! 650 */ 651 if (bp->b_data != obp->b_data) 652 goto done; 653 654 /* 655 * Advance the pointer to the second half and issue that command 656 * using the same opening. 657 */ 658 bp->b_flags = obp->b_flags | B_CALL; 659 bp->b_data += bp->b_bcount; 660 bp->b_blkno += (bp->b_bcount / 512); 661 bp->b_rawblkno += (bp->b_bcount / 512); 662 __wdstart(sc, bp); 663 return; 664 665 done: 666 obp->b_flags |= bp->b_flags & B_ERROR; 667 obp->b_error = bp->b_error; 668 obp->b_resid = bp->b_resid; 669 putiobuf(bp); 670 biodone(obp); 671 sc->openings++; 672 /* wddone() will call wdstart() */ 673 } 674 675 void 676 __wdstart(struct wd_softc *wd, struct buf *bp) 677 { 678 679 /* 680 * Deal with the "split mod15 write" quirk. We just divide the 681 * transfer in two, doing the first half and then then second half 682 * with the same command opening. 683 * 684 * Note we MUST do this here, because we can't let insertion 685 * into the bufq cause the transfers to be re-merged. 686 */ 687 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 688 (bp->b_flags & B_READ) == 0 && 689 bp->b_bcount > 512 && 690 ((bp->b_bcount / 512) % 15) == 1)) { 691 struct buf *nbp; 692 693 /* already at splbio */ 694 nbp = getiobuf_nowait(); 695 if (__predict_false(nbp == NULL)) { 696 /* No memory -- fail the iop. */ 697 bp->b_error = ENOMEM; 698 bp->b_flags |= B_ERROR; 699 bp->b_resid = bp->b_bcount; 700 biodone(bp); 701 wd->openings++; 702 return; 703 } 704 705 nbp->b_error = 0; 706 nbp->b_proc = bp->b_proc; 707 nbp->b_vp = NULLVP; 708 nbp->b_dev = bp->b_dev; 709 710 nbp->b_bcount = bp->b_bcount / 2; 711 nbp->b_bufsize = bp->b_bcount / 2; 712 nbp->b_data = bp->b_data; 713 714 nbp->b_blkno = bp->b_blkno; 715 nbp->b_rawblkno = bp->b_rawblkno; 716 717 nbp->b_flags = bp->b_flags | B_CALL; 718 nbp->b_iodone = wd_split_mod15_write; 719 720 /* Put ptr to orig buf in b_private and use new buf */ 721 nbp->b_private = bp; 722 723 BIO_COPYPRIO(nbp, bp); 724 725 bp = nbp; 726 } 727 728 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 729 wd->sc_wdc_bio.blkdone =0; 730 wd->sc_bp = bp; 731 /* 732 * If we're retrying, retry in single-sector mode. This will give us 733 * the sector number of the problem, and will eventually allow the 734 * transfer to succeed. 735 */ 736 if (wd->retries >= WDIORETRIES_SINGLE) 737 wd->sc_wdc_bio.flags = ATA_SINGLE; 738 else 739 wd->sc_wdc_bio.flags = 0; 740 if (wd->sc_flags & WDF_LBA48 && 741 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 742 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 743 wd->sc_wdc_bio.flags |= ATA_LBA48; 744 if (wd->sc_flags & WDF_LBA) 745 wd->sc_wdc_bio.flags |= ATA_LBA; 746 if (bp->b_flags & B_READ) 747 wd->sc_wdc_bio.flags |= ATA_READ; 748 wd->sc_wdc_bio.bcount = bp->b_bcount; 749 wd->sc_wdc_bio.databuf = bp->b_data; 750 /* Instrumentation. */ 751 disk_busy(&wd->sc_dk); 752 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 753 case ATACMD_TRY_AGAIN: 754 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 755 break; 756 case ATACMD_QUEUED: 757 case ATACMD_COMPLETE: 758 break; 759 default: 760 panic("__wdstart: bad return code from ata_bio()"); 761 } 762 } 763 764 void 765 wddone(void *v) 766 { 767 struct wd_softc *wd = v; 768 struct buf *bp = wd->sc_bp; 769 const char *errmsg; 770 int do_perror = 0; 771 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 772 DEBUG_XFERS); 773 int nblks; 774 775 if (bp == NULL) 776 return; 777 bp->b_resid = wd->sc_wdc_bio.bcount; 778 switch (wd->sc_wdc_bio.error) { 779 case ERR_DMA: 780 errmsg = "DMA error"; 781 goto retry; 782 case ERR_DF: 783 errmsg = "device fault"; 784 goto retry; 785 case TIMEOUT: 786 errmsg = "device timeout"; 787 goto retry; 788 case ERR_RESET: 789 errmsg = "channel reset"; 790 goto retry2; 791 case ERROR: 792 /* Don't care about media change bits */ 793 if (wd->sc_wdc_bio.r_error != 0 && 794 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 795 goto noerror; 796 errmsg = "error"; 797 do_perror = 1; 798 if ((wd->sc_wdc_bio.r_error & (WDCE_IDNF | WDCE_ABRT)) && 799 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 800 nblks = wd->sc_wdc_bio.bcount / 801 wd->sc_dk.dk_label->d_secsize; 802 /* 803 * If we get a "id not found" when crossing the 804 * LBA48_THRESHOLD, and the drive is larger than 805 * 128GB, then we can assume the drive has the 806 * LBA48 bug and we switch to LBA48. 807 */ 808 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 809 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 810 wd->sc_capacity > LBA48_THRESHOLD + 1) { 811 errmsg = "LBA48 bug"; 812 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 813 do_perror = 0; 814 goto retry2; 815 } 816 } 817 retry: /* Just reset and retry. Can we do more ? */ 818 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 819 retry2: 820 diskerr(bp, "wd", errmsg, LOG_PRINTF, 821 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 822 if (wd->retries < WDIORETRIES) 823 printf(", retrying"); 824 printf("\n"); 825 if (do_perror) 826 wdperror(wd); 827 if (wd->retries < WDIORETRIES) { 828 wd->retries++; 829 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 830 wdrestart, wd); 831 return; 832 } 833 834 #ifdef WD_SOFTBADSECT 835 /* 836 * Not all errors indicate a failed block but those that do, 837 * put the block on the bad-block list for the device. Only 838 * do this for reads because the drive should do it for writes, 839 * itself, according to Manuel. 840 */ 841 if ((bp->b_flags & B_READ) && 842 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 843 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 844 struct disk_badsectors *dbs; 845 846 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 847 dbs->dbs_min = bp->b_rawblkno; 848 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 849 microtime(&dbs->dbs_failedat); 850 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 851 wd->sc_bscount++; 852 } 853 #endif 854 bp->b_flags |= B_ERROR; 855 bp->b_error = EIO; 856 break; 857 case NOERROR: 858 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 859 printf("%s: soft error (corrected)\n", 860 wd->sc_dev.dv_xname); 861 break; 862 case ERR_NODEV: 863 bp->b_flags |= B_ERROR; 864 bp->b_error = EIO; 865 break; 866 } 867 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 868 (bp->b_flags & B_READ)); 869 #if NRND > 0 870 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 871 #endif 872 /* XXX Yuck, but we don't want to increment openings in this case */ 873 if (__predict_false((bp->b_flags & B_CALL) != 0 && 874 bp->b_iodone == wd_split_mod15_write)) 875 biodone(bp); 876 else { 877 biodone(bp); 878 wd->openings++; 879 } 880 wdstart(wd); 881 } 882 883 void 884 wdrestart(void *v) 885 { 886 struct wd_softc *wd = v; 887 struct buf *bp = wd->sc_bp; 888 int s; 889 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 890 DEBUG_XFERS); 891 892 s = splbio(); 893 __wdstart(v, bp); 894 splx(s); 895 } 896 897 int 898 wdread(dev_t dev, struct uio *uio, int flags) 899 { 900 901 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 902 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 903 } 904 905 int 906 wdwrite(dev_t dev, struct uio *uio, int flags) 907 { 908 909 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 910 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 911 } 912 913 int 914 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 915 { 916 struct wd_softc *wd; 917 int part, error; 918 919 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 920 wd = device_lookup(&wd_cd, WDUNIT(dev)); 921 if (wd == NULL) 922 return (ENXIO); 923 924 if (! device_is_active(&wd->sc_dev)) 925 return (ENODEV); 926 927 part = WDPART(dev); 928 929 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0) 930 return (error); 931 932 /* 933 * If there are wedges, and this is not RAW_PART, then we 934 * need to fail. 935 */ 936 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 937 error = EBUSY; 938 goto bad1; 939 } 940 941 /* 942 * If this is the first open of this device, add a reference 943 * to the adapter. 944 */ 945 if (wd->sc_dk.dk_openmask == 0 && 946 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 947 goto bad1; 948 949 if (wd->sc_dk.dk_openmask != 0) { 950 /* 951 * If any partition is open, but the disk has been invalidated, 952 * disallow further opens. 953 */ 954 if ((wd->sc_flags & WDF_LOADED) == 0) { 955 error = EIO; 956 goto bad2; 957 } 958 } else { 959 if ((wd->sc_flags & WDF_LOADED) == 0) { 960 wd->sc_flags |= WDF_LOADED; 961 962 /* Load the physical device parameters. */ 963 wd_get_params(wd, AT_WAIT, &wd->sc_params); 964 965 /* Load the partition info if not already loaded. */ 966 wdgetdisklabel(wd); 967 } 968 } 969 970 /* Check that the partition exists. */ 971 if (part != RAW_PART && 972 (part >= wd->sc_dk.dk_label->d_npartitions || 973 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 974 error = ENXIO; 975 goto bad2; 976 } 977 978 /* Insure only one open at a time. */ 979 switch (fmt) { 980 case S_IFCHR: 981 wd->sc_dk.dk_copenmask |= (1 << part); 982 break; 983 case S_IFBLK: 984 wd->sc_dk.dk_bopenmask |= (1 << part); 985 break; 986 } 987 wd->sc_dk.dk_openmask = 988 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 989 990 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 991 return 0; 992 993 bad2: 994 if (wd->sc_dk.dk_openmask == 0) 995 wd->atabus->ata_delref(wd->drvp); 996 bad1: 997 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 998 return error; 999 } 1000 1001 int 1002 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1003 { 1004 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1005 int part = WDPART(dev); 1006 int error; 1007 1008 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1009 1010 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, NULL)) != 0) 1011 return error; 1012 1013 switch (fmt) { 1014 case S_IFCHR: 1015 wd->sc_dk.dk_copenmask &= ~(1 << part); 1016 break; 1017 case S_IFBLK: 1018 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1019 break; 1020 } 1021 wd->sc_dk.dk_openmask = 1022 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1023 1024 if (wd->sc_dk.dk_openmask == 0) { 1025 wd_flushcache(wd, AT_WAIT); 1026 1027 if (! (wd->sc_flags & WDF_KLABEL)) 1028 wd->sc_flags &= ~WDF_LOADED; 1029 1030 wd->atabus->ata_delref(wd->drvp); 1031 } 1032 1033 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 1034 return 0; 1035 } 1036 1037 void 1038 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1039 { 1040 1041 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1042 memset(lp, 0, sizeof(struct disklabel)); 1043 1044 lp->d_secsize = DEV_BSIZE; 1045 lp->d_ntracks = wd->sc_params.atap_heads; 1046 lp->d_nsectors = wd->sc_params.atap_sectors; 1047 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1048 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1049 wd->sc_params.atap_cylinders; 1050 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1051 1052 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1053 lp->d_type = DTYPE_ST506; 1054 else 1055 lp->d_type = DTYPE_ESDI; 1056 1057 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1058 strncpy(lp->d_packname, "fictitious", 16); 1059 if (wd->sc_capacity > UINT32_MAX) 1060 lp->d_secperunit = UINT32_MAX; 1061 else 1062 lp->d_secperunit = wd->sc_capacity; 1063 lp->d_rpm = 3600; 1064 lp->d_interleave = 1; 1065 lp->d_flags = 0; 1066 1067 lp->d_partitions[RAW_PART].p_offset = 0; 1068 lp->d_partitions[RAW_PART].p_size = 1069 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1070 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1071 lp->d_npartitions = RAW_PART + 1; 1072 1073 lp->d_magic = DISKMAGIC; 1074 lp->d_magic2 = DISKMAGIC; 1075 lp->d_checksum = dkcksum(lp); 1076 } 1077 1078 /* 1079 * Fabricate a default disk label, and try to read the correct one. 1080 */ 1081 void 1082 wdgetdisklabel(struct wd_softc *wd) 1083 { 1084 struct disklabel *lp = wd->sc_dk.dk_label; 1085 const char *errstring; 1086 int s; 1087 1088 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1089 1090 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1091 1092 wdgetdefaultlabel(wd, lp); 1093 1094 wd->sc_badsect[0] = -1; 1095 1096 if (wd->drvp->state > RESET) { 1097 s = splbio(); 1098 wd->drvp->drive_flags |= DRIVE_RESET; 1099 splx(s); 1100 } 1101 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1102 RAW_PART), wdstrategy, lp, 1103 wd->sc_dk.dk_cpulabel); 1104 if (errstring) { 1105 /* 1106 * This probably happened because the drive's default 1107 * geometry doesn't match the DOS geometry. We 1108 * assume the DOS geometry is now in the label and try 1109 * again. XXX This is a kluge. 1110 */ 1111 if (wd->drvp->state > RESET) { 1112 s = splbio(); 1113 wd->drvp->drive_flags |= DRIVE_RESET; 1114 splx(s); 1115 } 1116 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1117 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1118 } 1119 if (errstring) { 1120 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1121 return; 1122 } 1123 1124 if (wd->drvp->state > RESET) { 1125 s = splbio(); 1126 wd->drvp->drive_flags |= DRIVE_RESET; 1127 splx(s); 1128 } 1129 #ifdef HAS_BAD144_HANDLING 1130 if ((lp->d_flags & D_BADSECT) != 0) 1131 bad144intern(wd); 1132 #endif 1133 } 1134 1135 void 1136 wdperror(const struct wd_softc *wd) 1137 { 1138 static const char *const errstr0_3[] = {"address mark not found", 1139 "track 0 not found", "aborted command", "media change requested", 1140 "id not found", "media changed", "uncorrectable data error", 1141 "bad block detected"}; 1142 static const char *const errstr4_5[] = { 1143 "obsolete (address mark not found)", 1144 "no media/write protected", "aborted command", 1145 "media change requested", "id not found", "media changed", 1146 "uncorrectable data error", "interface CRC error"}; 1147 const char *const *errstr; 1148 int i; 1149 const char *sep = ""; 1150 1151 const char *devname = wd->sc_dev.dv_xname; 1152 struct ata_drive_datas *drvp = wd->drvp; 1153 int errno = wd->sc_wdc_bio.r_error; 1154 1155 if (drvp->ata_vers >= 4) 1156 errstr = errstr4_5; 1157 else 1158 errstr = errstr0_3; 1159 1160 printf("%s: (", devname); 1161 1162 if (errno == 0) 1163 printf("error not notified"); 1164 1165 for (i = 0; i < 8; i++) { 1166 if (errno & (1 << i)) { 1167 printf("%s%s", sep, errstr[i]); 1168 sep = ", "; 1169 } 1170 } 1171 printf(")\n"); 1172 } 1173 1174 int 1175 wdioctl(dev_t dev, u_long xfer, caddr_t addr, int flag, struct lwp *l) 1176 { 1177 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1178 int error = 0, s; 1179 #ifdef __HAVE_OLD_DISKLABEL 1180 struct disklabel *newlabel = NULL; 1181 #endif 1182 1183 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1184 1185 if ((wd->sc_flags & WDF_LOADED) == 0) 1186 return EIO; 1187 1188 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1189 if (error != EPASSTHROUGH) 1190 return (error); 1191 1192 switch (xfer) { 1193 #ifdef HAS_BAD144_HANDLING 1194 case DIOCSBAD: 1195 if ((flag & FWRITE) == 0) 1196 return EBADF; 1197 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1198 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1199 bad144intern(wd); 1200 return 0; 1201 #endif 1202 #ifdef WD_SOFTBADSECT 1203 case DIOCBSLIST : 1204 { 1205 u_int32_t count, missing, skip; 1206 struct disk_badsecinfo dbsi; 1207 struct disk_badsectors *dbs; 1208 size_t available; 1209 caddr_t laddr; 1210 1211 dbsi = *(struct disk_badsecinfo *)addr; 1212 missing = wd->sc_bscount; 1213 count = 0; 1214 available = dbsi.dbsi_bufsize; 1215 skip = dbsi.dbsi_skip; 1216 laddr = dbsi.dbsi_buffer; 1217 1218 /* 1219 * We start this loop with the expectation that all of the 1220 * entries will be missed and decrement this counter each 1221 * time we either skip over one (already copied out) or 1222 * we actually copy it back to user space. The structs 1223 * holding the bad sector information are copied directly 1224 * back to user space whilst the summary is returned via 1225 * the struct passed in via the ioctl. 1226 */ 1227 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1228 if (skip > 0) { 1229 missing--; 1230 skip--; 1231 continue; 1232 } 1233 if (available < sizeof(*dbs)) 1234 break; 1235 available -= sizeof(*dbs); 1236 copyout(dbs, laddr, sizeof(*dbs)); 1237 laddr += sizeof(*dbs); 1238 missing--; 1239 count++; 1240 } 1241 dbsi.dbsi_left = missing; 1242 dbsi.dbsi_copied = count; 1243 *(struct disk_badsecinfo *)addr = dbsi; 1244 return 0; 1245 } 1246 1247 case DIOCBSFLUSH : 1248 /* Clean out the bad sector list */ 1249 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1250 void *head = SLIST_FIRST(&wd->sc_bslist); 1251 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1252 free(head, M_TEMP); 1253 } 1254 wd->sc_bscount = 0; 1255 return 0; 1256 #endif 1257 case DIOCGDINFO: 1258 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1259 return 0; 1260 #ifdef __HAVE_OLD_DISKLABEL 1261 case ODIOCGDINFO: 1262 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1263 if (newlabel == NULL) 1264 return EIO; 1265 *newlabel = *(wd->sc_dk.dk_label); 1266 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1267 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1268 else 1269 error = ENOTTY; 1270 free(newlabel, M_TEMP); 1271 return error; 1272 #endif 1273 1274 case DIOCGPART: 1275 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1276 ((struct partinfo *)addr)->part = 1277 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1278 return 0; 1279 1280 case DIOCWDINFO: 1281 case DIOCSDINFO: 1282 #ifdef __HAVE_OLD_DISKLABEL 1283 case ODIOCWDINFO: 1284 case ODIOCSDINFO: 1285 #endif 1286 { 1287 struct disklabel *lp; 1288 1289 if ((flag & FWRITE) == 0) 1290 return EBADF; 1291 1292 #ifdef __HAVE_OLD_DISKLABEL 1293 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1294 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1295 if (newlabel == NULL) 1296 return EIO; 1297 memset(newlabel, 0, sizeof newlabel); 1298 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1299 lp = newlabel; 1300 } else 1301 #endif 1302 lp = (struct disklabel *)addr; 1303 1304 if ((error = lockmgr(&wd->sc_dk.dk_openlock, LK_EXCLUSIVE, 1305 NULL)) != 0) 1306 goto bad; 1307 wd->sc_flags |= WDF_LABELLING; 1308 1309 error = setdisklabel(wd->sc_dk.dk_label, 1310 lp, /*wd->sc_dk.dk_openmask : */0, 1311 wd->sc_dk.dk_cpulabel); 1312 if (error == 0) { 1313 if (wd->drvp->state > RESET) { 1314 s = splbio(); 1315 wd->drvp->drive_flags |= DRIVE_RESET; 1316 splx(s); 1317 } 1318 if (xfer == DIOCWDINFO 1319 #ifdef __HAVE_OLD_DISKLABEL 1320 || xfer == ODIOCWDINFO 1321 #endif 1322 ) 1323 error = writedisklabel(WDLABELDEV(dev), 1324 wdstrategy, wd->sc_dk.dk_label, 1325 wd->sc_dk.dk_cpulabel); 1326 } 1327 1328 wd->sc_flags &= ~WDF_LABELLING; 1329 (void) lockmgr(&wd->sc_dk.dk_openlock, LK_RELEASE, NULL); 1330 bad: 1331 #ifdef __HAVE_OLD_DISKLABEL 1332 if (newlabel != NULL) 1333 free(newlabel, M_TEMP); 1334 #endif 1335 return error; 1336 } 1337 1338 case DIOCKLABEL: 1339 if (*(int *)addr) 1340 wd->sc_flags |= WDF_KLABEL; 1341 else 1342 wd->sc_flags &= ~WDF_KLABEL; 1343 return 0; 1344 1345 case DIOCWLABEL: 1346 if ((flag & FWRITE) == 0) 1347 return EBADF; 1348 if (*(int *)addr) 1349 wd->sc_flags |= WDF_WLABEL; 1350 else 1351 wd->sc_flags &= ~WDF_WLABEL; 1352 return 0; 1353 1354 case DIOCGDEFLABEL: 1355 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1356 return 0; 1357 #ifdef __HAVE_OLD_DISKLABEL 1358 case ODIOCGDEFLABEL: 1359 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1360 if (newlabel == NULL) 1361 return EIO; 1362 wdgetdefaultlabel(wd, newlabel); 1363 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1364 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1365 else 1366 error = ENOTTY; 1367 free(newlabel, M_TEMP); 1368 return error; 1369 #endif 1370 1371 #ifdef notyet 1372 case DIOCWFORMAT: 1373 if ((flag & FWRITE) == 0) 1374 return EBADF; 1375 { 1376 register struct format_op *fop; 1377 struct iovec aiov; 1378 struct uio auio; 1379 1380 fop = (struct format_op *)addr; 1381 aiov.iov_base = fop->df_buf; 1382 aiov.iov_len = fop->df_count; 1383 auio.uio_iov = &aiov; 1384 auio.uio_iovcnt = 1; 1385 auio.uio_resid = fop->df_count; 1386 auio.uio_offset = 1387 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1388 auio.uio_vmspace = l->l_proc->p_vmspace; 1389 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1390 &auio); 1391 fop->df_count -= auio.uio_resid; 1392 fop->df_reg[0] = wdc->sc_status; 1393 fop->df_reg[1] = wdc->sc_error; 1394 return error; 1395 } 1396 #endif 1397 case DIOCGCACHE: 1398 return wd_getcache(wd, (int *)addr); 1399 1400 case DIOCSCACHE: 1401 return wd_setcache(wd, *(int *)addr); 1402 1403 case DIOCCACHESYNC: 1404 return wd_flushcache(wd, AT_WAIT); 1405 1406 case ATAIOCCOMMAND: 1407 /* 1408 * Make sure this command is (relatively) safe first 1409 */ 1410 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1411 (flag & FWRITE) == 0) 1412 return (EBADF); 1413 { 1414 struct wd_ioctl *wi; 1415 atareq_t *atareq = (atareq_t *) addr; 1416 int error1; 1417 1418 wi = wi_get(); 1419 wi->wi_softc = wd; 1420 wi->wi_atareq = *atareq; 1421 1422 if (atareq->datalen && atareq->flags & 1423 (ATACMD_READ | ATACMD_WRITE)) { 1424 wi->wi_iov.iov_base = atareq->databuf; 1425 wi->wi_iov.iov_len = atareq->datalen; 1426 wi->wi_uio.uio_iov = &wi->wi_iov; 1427 wi->wi_uio.uio_iovcnt = 1; 1428 wi->wi_uio.uio_resid = atareq->datalen; 1429 wi->wi_uio.uio_offset = 0; 1430 wi->wi_uio.uio_rw = 1431 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1432 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1433 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1434 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1435 minphys, &wi->wi_uio); 1436 } else { 1437 /* No need to call physio if we don't have any 1438 user data */ 1439 wi->wi_bp.b_flags = 0; 1440 wi->wi_bp.b_data = 0; 1441 wi->wi_bp.b_bcount = 0; 1442 wi->wi_bp.b_dev = 0; 1443 wi->wi_bp.b_proc = l->l_proc; 1444 wdioctlstrategy(&wi->wi_bp); 1445 error1 = wi->wi_bp.b_error; 1446 } 1447 *atareq = wi->wi_atareq; 1448 wi_free(wi); 1449 return(error1); 1450 } 1451 1452 case DIOCAWEDGE: 1453 { 1454 struct dkwedge_info *dkw = (void *) addr; 1455 1456 if ((flag & FWRITE) == 0) 1457 return (EBADF); 1458 1459 /* If the ioctl happens here, the parent is us. */ 1460 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1461 return (dkwedge_add(dkw)); 1462 } 1463 1464 case DIOCDWEDGE: 1465 { 1466 struct dkwedge_info *dkw = (void *) addr; 1467 1468 if ((flag & FWRITE) == 0) 1469 return (EBADF); 1470 1471 /* If the ioctl happens here, the parent is us. */ 1472 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1473 return (dkwedge_del(dkw)); 1474 } 1475 1476 case DIOCLWEDGES: 1477 { 1478 struct dkwedge_list *dkwl = (void *) addr; 1479 1480 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1481 } 1482 1483 case DIOCGSTRATEGY: 1484 { 1485 struct disk_strategy *dks = (void *)addr; 1486 1487 s = splbio(); 1488 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1489 sizeof(dks->dks_name)); 1490 splx(s); 1491 dks->dks_paramlen = 0; 1492 1493 return 0; 1494 } 1495 1496 case DIOCSSTRATEGY: 1497 { 1498 struct disk_strategy *dks = (void *)addr; 1499 struct bufq_state *new; 1500 struct bufq_state *old; 1501 1502 if ((flag & FWRITE) == 0) { 1503 return EBADF; 1504 } 1505 if (dks->dks_param != NULL) { 1506 return EINVAL; 1507 } 1508 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1509 error = bufq_alloc(&new, dks->dks_name, 1510 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1511 if (error) { 1512 return error; 1513 } 1514 s = splbio(); 1515 old = wd->sc_q; 1516 bufq_move(new, old); 1517 wd->sc_q = new; 1518 splx(s); 1519 bufq_free(old); 1520 1521 return 0; 1522 } 1523 1524 default: 1525 return ENOTTY; 1526 } 1527 1528 #ifdef DIAGNOSTIC 1529 panic("wdioctl: impossible"); 1530 #endif 1531 } 1532 1533 #ifdef B_FORMAT 1534 int 1535 wdformat(struct buf *bp) 1536 { 1537 1538 bp->b_flags |= B_FORMAT; 1539 return wdstrategy(bp); 1540 } 1541 #endif 1542 1543 int 1544 wdsize(dev_t dev) 1545 { 1546 struct wd_softc *wd; 1547 int part, omask; 1548 int size; 1549 1550 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1551 1552 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1553 if (wd == NULL) 1554 return (-1); 1555 1556 part = WDPART(dev); 1557 omask = wd->sc_dk.dk_openmask & (1 << part); 1558 1559 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1560 return (-1); 1561 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1562 size = -1; 1563 else 1564 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1565 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1566 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1567 return (-1); 1568 return (size); 1569 } 1570 1571 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1572 static int wddoingadump = 0; 1573 static int wddumprecalibrated = 0; 1574 1575 /* 1576 * Dump core after a system crash. 1577 */ 1578 int 1579 wddump(dev_t dev, daddr_t blkno, caddr_t va, size_t size) 1580 { 1581 struct wd_softc *wd; /* disk unit to do the I/O */ 1582 struct disklabel *lp; /* disk's disklabel */ 1583 int part, err; 1584 int nblks; /* total number of sectors left to write */ 1585 1586 /* Check if recursive dump; if so, punt. */ 1587 if (wddoingadump) 1588 return EFAULT; 1589 wddoingadump = 1; 1590 1591 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1592 if (wd == NULL) 1593 return (ENXIO); 1594 1595 part = WDPART(dev); 1596 1597 /* Convert to disk sectors. Request must be a multiple of size. */ 1598 lp = wd->sc_dk.dk_label; 1599 if ((size % lp->d_secsize) != 0) 1600 return EFAULT; 1601 nblks = size / lp->d_secsize; 1602 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1603 1604 /* Check transfer bounds against partition size. */ 1605 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1606 return EINVAL; 1607 1608 /* Offset block number to start of partition. */ 1609 blkno += lp->d_partitions[part].p_offset; 1610 1611 /* Recalibrate, if first dump transfer. */ 1612 if (wddumprecalibrated == 0) { 1613 wddumprecalibrated = 1; 1614 (*wd->atabus->ata_reset_drive)(wd->drvp, 1615 AT_POLL | AT_RST_EMERG); 1616 wd->drvp->state = RESET; 1617 } 1618 1619 wd->sc_bp = NULL; 1620 wd->sc_wdc_bio.blkno = blkno; 1621 wd->sc_wdc_bio.flags = ATA_POLL; 1622 if (wd->sc_flags & WDF_LBA48 && 1623 (blkno > LBA48_THRESHOLD || 1624 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1625 wd->sc_wdc_bio.flags |= ATA_LBA48; 1626 if (wd->sc_flags & WDF_LBA) 1627 wd->sc_wdc_bio.flags |= ATA_LBA; 1628 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1629 wd->sc_wdc_bio.databuf = va; 1630 #ifndef WD_DUMP_NOT_TRUSTED 1631 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1632 case ATACMD_TRY_AGAIN: 1633 panic("wddump: try again"); 1634 break; 1635 case ATACMD_QUEUED: 1636 panic("wddump: polled command has been queued"); 1637 break; 1638 case ATACMD_COMPLETE: 1639 break; 1640 } 1641 switch(wd->sc_wdc_bio.error) { 1642 case TIMEOUT: 1643 printf("wddump: device timed out"); 1644 err = EIO; 1645 break; 1646 case ERR_DF: 1647 printf("wddump: drive fault"); 1648 err = EIO; 1649 break; 1650 case ERR_DMA: 1651 printf("wddump: DMA error"); 1652 err = EIO; 1653 break; 1654 case ERROR: 1655 printf("wddump: "); 1656 wdperror(wd); 1657 err = EIO; 1658 break; 1659 case NOERROR: 1660 err = 0; 1661 break; 1662 default: 1663 panic("wddump: unknown error type"); 1664 } 1665 if (err != 0) { 1666 printf("\n"); 1667 return err; 1668 } 1669 #else /* WD_DUMP_NOT_TRUSTED */ 1670 /* Let's just talk about this first... */ 1671 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1672 unit, va, cylin, head, sector); 1673 delay(500 * 1000); /* half a second */ 1674 #endif 1675 1676 wddoingadump = 0; 1677 return 0; 1678 } 1679 1680 #ifdef HAS_BAD144_HANDLING 1681 /* 1682 * Internalize the bad sector table. 1683 */ 1684 void 1685 bad144intern(struct wd_softc *wd) 1686 { 1687 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1688 struct disklabel *lp = wd->sc_dk.dk_label; 1689 int i = 0; 1690 1691 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1692 1693 for (; i < NBT_BAD; i++) { 1694 if (bt->bt_bad[i].bt_cyl == 0xffff) 1695 break; 1696 wd->sc_badsect[i] = 1697 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1698 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1699 (bt->bt_bad[i].bt_trksec & 0xff); 1700 } 1701 for (; i < NBT_BAD+1; i++) 1702 wd->sc_badsect[i] = -1; 1703 } 1704 #endif 1705 1706 static void 1707 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1708 { 1709 prop_dictionary_t disk_info, odisk_info, geom; 1710 const char *cp; 1711 1712 disk_info = prop_dictionary_create(); 1713 1714 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1715 cp = "ST506"; 1716 else { 1717 /* XXX Should have a case for ATA here, too. */ 1718 cp = "ESDI"; 1719 } 1720 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1721 1722 geom = prop_dictionary_create(); 1723 1724 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1725 1726 prop_dictionary_set_uint32(geom, "sector-size", 1727 DEV_BSIZE /* XXX 512? */); 1728 1729 prop_dictionary_set_uint16(geom, "sectors-per-track", 1730 wd->sc_params.atap_sectors); 1731 1732 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1733 wd->sc_params.atap_heads); 1734 1735 if (wd->sc_flags & WDF_LBA) 1736 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1737 wd->sc_capacity / 1738 (wd->sc_params.atap_heads * 1739 wd->sc_params.atap_sectors)); 1740 else 1741 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1742 wd->sc_params.atap_cylinders); 1743 1744 prop_dictionary_set(disk_info, "geometry", geom); 1745 prop_object_release(geom); 1746 1747 prop_dictionary_set(device_properties(&wd->sc_dev), 1748 "disk-info", disk_info); 1749 1750 /* 1751 * Don't release disk_info here; we keep a reference to it. 1752 * disk_detach() will release it when we go away. 1753 */ 1754 1755 odisk_info = wd->sc_dk.dk_info; 1756 wd->sc_dk.dk_info = disk_info; 1757 if (odisk_info) 1758 prop_object_release(odisk_info); 1759 } 1760 1761 int 1762 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1763 { 1764 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1765 case CMD_AGAIN: 1766 return 1; 1767 case CMD_ERR: 1768 /* 1769 * We `know' there's a drive here; just assume it's old. 1770 * This geometry is only used to read the MBR and print a 1771 * (false) attach message. 1772 */ 1773 strncpy(params->atap_model, "ST506", 1774 sizeof params->atap_model); 1775 params->atap_config = ATA_CFG_FIXED; 1776 params->atap_cylinders = 1024; 1777 params->atap_heads = 8; 1778 params->atap_sectors = 17; 1779 params->atap_multi = 1; 1780 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1781 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1782 /* FALLTHROUGH */ 1783 case CMD_OK: 1784 wd_params_to_properties(wd, params); 1785 return 0; 1786 default: 1787 panic("wd_get_params: bad return code from ata_get_params"); 1788 /* NOTREACHED */ 1789 } 1790 } 1791 1792 int 1793 wd_getcache(struct wd_softc *wd, int *bitsp) 1794 { 1795 struct ataparams params; 1796 1797 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1798 return EIO; 1799 if (params.atap_cmd_set1 == 0x0000 || 1800 params.atap_cmd_set1 == 0xffff || 1801 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1802 *bitsp = 0; 1803 return 0; 1804 } 1805 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1806 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1807 *bitsp |= DKCACHE_WRITE; 1808 1809 return 0; 1810 } 1811 1812 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1813 1814 int 1815 wd_setcache(struct wd_softc *wd, int bits) 1816 { 1817 struct ataparams params; 1818 struct ata_command ata_c; 1819 1820 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1821 return EIO; 1822 1823 if (params.atap_cmd_set1 == 0x0000 || 1824 params.atap_cmd_set1 == 0xffff || 1825 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1826 return EOPNOTSUPP; 1827 1828 if ((bits & DKCACHE_READ) == 0 || 1829 (bits & DKCACHE_SAVE) != 0) 1830 return EOPNOTSUPP; 1831 1832 memset(&ata_c, 0, sizeof(struct ata_command)); 1833 ata_c.r_command = SET_FEATURES; 1834 ata_c.r_st_bmask = 0; 1835 ata_c.r_st_pmask = 0; 1836 ata_c.timeout = 30000; /* 30s timeout */ 1837 ata_c.flags = AT_WAIT; 1838 if (bits & DKCACHE_WRITE) 1839 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1840 else 1841 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1842 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1843 printf("%s: wd_setcache command not complete\n", 1844 wd->sc_dev.dv_xname); 1845 return EIO; 1846 } 1847 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1848 char sbuf[sizeof(at_errbits) + 64]; 1849 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1850 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1851 sbuf); 1852 return EIO; 1853 } 1854 return 0; 1855 } 1856 1857 int 1858 wd_standby(struct wd_softc *wd, int flags) 1859 { 1860 struct ata_command ata_c; 1861 1862 memset(&ata_c, 0, sizeof(struct ata_command)); 1863 ata_c.r_command = WDCC_STANDBY_IMMED; 1864 ata_c.r_st_bmask = WDCS_DRDY; 1865 ata_c.r_st_pmask = WDCS_DRDY; 1866 ata_c.flags = flags; 1867 ata_c.timeout = 30000; /* 30s timeout */ 1868 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1869 printf("%s: standby immediate command didn't complete\n", 1870 wd->sc_dev.dv_xname); 1871 return EIO; 1872 } 1873 if (ata_c.flags & AT_ERROR) { 1874 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1875 return ENODEV; 1876 } 1877 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1878 char sbuf[sizeof(at_errbits) + 64]; 1879 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1880 printf("%s: wd_standby: status=%s\n", wd->sc_dev.dv_xname, 1881 sbuf); 1882 return EIO; 1883 } 1884 return 0; 1885 } 1886 1887 int 1888 wd_flushcache(struct wd_softc *wd, int flags) 1889 { 1890 struct ata_command ata_c; 1891 1892 /* 1893 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1894 * only ATA-2 and still support it. 1895 */ 1896 if (wd->drvp->ata_vers < 4 && 1897 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1898 wd->sc_params.atap_cmd_set2 == 0xffff)) 1899 return ENODEV; 1900 memset(&ata_c, 0, sizeof(struct ata_command)); 1901 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1902 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1903 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1904 else 1905 ata_c.r_command = WDCC_FLUSHCACHE; 1906 ata_c.r_st_bmask = WDCS_DRDY; 1907 ata_c.r_st_pmask = WDCS_DRDY; 1908 ata_c.flags = flags; 1909 ata_c.timeout = 30000; /* 30s timeout */ 1910 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1911 printf("%s: flush cache command didn't complete\n", 1912 wd->sc_dev.dv_xname); 1913 return EIO; 1914 } 1915 if (ata_c.flags & AT_ERROR) { 1916 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1917 return ENODEV; 1918 } 1919 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1920 char sbuf[sizeof(at_errbits) + 64]; 1921 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1922 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1923 sbuf); 1924 return EIO; 1925 } 1926 return 0; 1927 } 1928 1929 void 1930 wd_shutdown(void *arg) 1931 { 1932 struct wd_softc *wd = arg; 1933 wd_flushcache(wd, AT_POLL); 1934 } 1935 1936 /* 1937 * Allocate space for a ioctl queue structure. Mostly taken from 1938 * scsipi_ioctl.c 1939 */ 1940 struct wd_ioctl * 1941 wi_get(void) 1942 { 1943 struct wd_ioctl *wi; 1944 int s; 1945 1946 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1947 simple_lock_init(&wi->wi_bp.b_interlock); 1948 s = splbio(); 1949 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1950 splx(s); 1951 return (wi); 1952 } 1953 1954 /* 1955 * Free an ioctl structure and remove it from our list 1956 */ 1957 1958 void 1959 wi_free(struct wd_ioctl *wi) 1960 { 1961 int s; 1962 1963 s = splbio(); 1964 LIST_REMOVE(wi, wi_list); 1965 splx(s); 1966 free(wi, M_TEMP); 1967 } 1968 1969 /* 1970 * Find a wd_ioctl structure based on the struct buf. 1971 */ 1972 1973 struct wd_ioctl * 1974 wi_find(struct buf *bp) 1975 { 1976 struct wd_ioctl *wi; 1977 int s; 1978 1979 s = splbio(); 1980 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1981 if (bp == &wi->wi_bp) 1982 break; 1983 splx(s); 1984 return (wi); 1985 } 1986 1987 /* 1988 * Ioctl pseudo strategy routine 1989 * 1990 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1991 * happens here is: 1992 * 1993 * - wdioctl() queues a wd_ioctl structure. 1994 * 1995 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 1996 * user space I/O is required. If physio() is called, physio() eventually 1997 * calls wdioctlstrategy(). 1998 * 1999 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2000 * to perform the actual command 2001 * 2002 * The reason for the use of the pseudo strategy routine is because 2003 * when doing I/O to/from user space, physio _really_ wants to be in 2004 * the loop. We could put the entire buffer into the ioctl request 2005 * structure, but that won't scale if we want to do things like download 2006 * microcode. 2007 */ 2008 2009 void 2010 wdioctlstrategy(struct buf *bp) 2011 { 2012 struct wd_ioctl *wi; 2013 struct ata_command ata_c; 2014 int error = 0; 2015 2016 wi = wi_find(bp); 2017 if (wi == NULL) { 2018 printf("wdioctlstrategy: " 2019 "No matching ioctl request found in queue\n"); 2020 error = EINVAL; 2021 goto bad; 2022 } 2023 2024 memset(&ata_c, 0, sizeof(ata_c)); 2025 2026 /* 2027 * Abort if physio broke up the transfer 2028 */ 2029 2030 if (bp->b_bcount != wi->wi_atareq.datalen) { 2031 printf("physio split wd ioctl request... cannot proceed\n"); 2032 error = EIO; 2033 goto bad; 2034 } 2035 2036 /* 2037 * Abort if we didn't get a buffer size that was a multiple of 2038 * our sector size (or was larger than NBBY) 2039 */ 2040 2041 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2042 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2043 (1 << NBBY)) { 2044 error = EINVAL; 2045 goto bad; 2046 } 2047 2048 /* 2049 * Make sure a timeout was supplied in the ioctl request 2050 */ 2051 2052 if (wi->wi_atareq.timeout == 0) { 2053 error = EINVAL; 2054 goto bad; 2055 } 2056 2057 if (wi->wi_atareq.flags & ATACMD_READ) 2058 ata_c.flags |= AT_READ; 2059 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2060 ata_c.flags |= AT_WRITE; 2061 2062 if (wi->wi_atareq.flags & ATACMD_READREG) 2063 ata_c.flags |= AT_READREG; 2064 2065 ata_c.flags |= AT_WAIT; 2066 2067 ata_c.timeout = wi->wi_atareq.timeout; 2068 ata_c.r_command = wi->wi_atareq.command; 2069 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2070 ata_c.r_cyl = wi->wi_atareq.cylinder; 2071 ata_c.r_sector = wi->wi_atareq.sec_num; 2072 ata_c.r_count = wi->wi_atareq.sec_count; 2073 ata_c.r_features = wi->wi_atareq.features; 2074 ata_c.r_st_bmask = WDCS_DRDY; 2075 ata_c.r_st_pmask = WDCS_DRDY; 2076 ata_c.data = wi->wi_bp.b_data; 2077 ata_c.bcount = wi->wi_bp.b_bcount; 2078 2079 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2080 != ATACMD_COMPLETE) { 2081 wi->wi_atareq.retsts = ATACMD_ERROR; 2082 goto bad; 2083 } 2084 2085 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2086 if (ata_c.flags & AT_ERROR) { 2087 wi->wi_atareq.retsts = ATACMD_ERROR; 2088 wi->wi_atareq.error = ata_c.r_error; 2089 } else if (ata_c.flags & AT_DF) 2090 wi->wi_atareq.retsts = ATACMD_DF; 2091 else 2092 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2093 } else { 2094 wi->wi_atareq.retsts = ATACMD_OK; 2095 if (wi->wi_atareq.flags & ATACMD_READREG) { 2096 wi->wi_atareq.head = ata_c.r_head ; 2097 wi->wi_atareq.cylinder = ata_c.r_cyl; 2098 wi->wi_atareq.sec_num = ata_c.r_sector; 2099 wi->wi_atareq.sec_count = ata_c.r_count; 2100 wi->wi_atareq.features = ata_c.r_features; 2101 wi->wi_atareq.error = ata_c.r_error; 2102 } 2103 } 2104 2105 bp->b_error = 0; 2106 biodone(bp); 2107 return; 2108 bad: 2109 bp->b_flags |= B_ERROR; 2110 bp->b_error = error; 2111 biodone(bp); 2112 } 2113
Indexes created Sun Oct 19 02:09:48 GMT 2025