wd.c revision 1.354
1 /* $NetBSD: wd.c,v 1.354 2007/12/18 15:30:40 joerg 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 1.354 2007/12/18 15:30:40 joerg Exp $"); 70 71 #include "opt_ata.h" 72 73 #include "rnd.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/conf.h> 79 #include <sys/file.h> 80 #include <sys/stat.h> 81 #include <sys/ioctl.h> 82 #include <sys/buf.h> 83 #include <sys/bufq.h> 84 #include <sys/uio.h> 85 #include <sys/malloc.h> 86 #include <sys/device.h> 87 #include <sys/disklabel.h> 88 #include <sys/disk.h> 89 #include <sys/syslog.h> 90 #include <sys/proc.h> 91 #include <sys/reboot.h> 92 #include <sys/vnode.h> 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <sys/intr.h> 98 #include <sys/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 #include <prop/proplib.h> 108 109 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 110 111 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 112 #define WDIORETRIES 5 /* number of retries before giving up */ 113 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 114 115 #define WDUNIT(dev) DISKUNIT(dev) 116 #define WDPART(dev) DISKPART(dev) 117 #define WDMINOR(unit, part) DISKMINOR(unit, part) 118 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 119 120 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 121 122 #define DEBUG_INTR 0x01 123 #define DEBUG_XFERS 0x02 124 #define DEBUG_STATUS 0x04 125 #define DEBUG_FUNCS 0x08 126 #define DEBUG_PROBE 0x10 127 #ifdef ATADEBUG 128 int wdcdebug_wd_mask = 0x0; 129 #define ATADEBUG_PRINT(args, level) \ 130 if (wdcdebug_wd_mask & (level)) \ 131 printf args 132 #else 133 #define ATADEBUG_PRINT(args, level) 134 #endif 135 136 int wdprobe(struct device *, struct cfdata *, void *); 137 void wdattach(struct device *, struct device *, void *); 138 int wddetach(struct device *, int); 139 int wdactivate(struct device *, enum devact); 140 int wdprint(void *, char *); 141 void wdperror(const struct wd_softc *); 142 143 static bool wd_suspend(device_t); 144 static int wd_standby(struct wd_softc *, int); 145 146 CFATTACH_DECL(wd, sizeof(struct wd_softc), 147 wdprobe, wdattach, wddetach, wdactivate); 148 149 extern struct cfdriver wd_cd; 150 151 dev_type_open(wdopen); 152 dev_type_close(wdclose); 153 dev_type_read(wdread); 154 dev_type_write(wdwrite); 155 dev_type_ioctl(wdioctl); 156 dev_type_strategy(wdstrategy); 157 dev_type_dump(wddump); 158 dev_type_size(wdsize); 159 160 const struct bdevsw wd_bdevsw = { 161 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 162 }; 163 164 const struct cdevsw wd_cdevsw = { 165 wdopen, wdclose, wdread, wdwrite, wdioctl, 166 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 167 }; 168 169 /* 170 * Glue necessary to hook WDCIOCCOMMAND into physio 171 */ 172 173 struct wd_ioctl { 174 LIST_ENTRY(wd_ioctl) wi_list; 175 struct buf wi_bp; 176 struct uio wi_uio; 177 struct iovec wi_iov; 178 atareq_t wi_atareq; 179 struct wd_softc *wi_softc; 180 }; 181 182 LIST_HEAD(, wd_ioctl) wi_head; 183 184 struct wd_ioctl *wi_find(struct buf *); 185 void wi_free(struct wd_ioctl *); 186 struct wd_ioctl *wi_get(void); 187 void wdioctlstrategy(struct buf *); 188 189 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 190 void wdgetdisklabel(struct wd_softc *); 191 void wdstart(void *); 192 void __wdstart(struct wd_softc*, struct buf *); 193 void wdrestart(void *); 194 void wddone(void *); 195 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 196 int wd_flushcache(struct wd_softc *, int); 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 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 260 WD_QUIRK_FORCE_LBA48 }, 261 { NULL, 262 0 } 263 }; 264 265 static const struct wd_quirk * 266 wd_lookup_quirks(const char *name) 267 { 268 const struct wd_quirk *wdq; 269 const char *estr; 270 271 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 272 /* 273 * We only want exact matches (which include matches 274 * against globbing characters). 275 */ 276 if (pmatch(name, wdq->wdq_match, &estr) == 2) 277 return (wdq); 278 } 279 return (NULL); 280 } 281 282 int 283 wdprobe(struct device *parent, struct cfdata *match, void *aux) 284 { 285 struct ata_device *adev = aux; 286 287 if (adev == NULL) 288 return 0; 289 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 290 return 0; 291 292 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 293 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 294 return 0; 295 return 1; 296 } 297 298 void 299 wdattach(struct device *parent, struct device *self, void *aux) 300 { 301 struct wd_softc *wd = (void *)self; 302 struct ata_device *adev= aux; 303 int i, blank; 304 char tbuf[41], pbuf[9], c, *p, *q; 305 const struct wd_quirk *wdq; 306 307 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 308 callout_init(&wd->sc_restart_ch, 0); 309 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 310 #ifdef WD_SOFTBADSECT 311 SLIST_INIT(&wd->sc_bslist); 312 #endif 313 wd->atabus = adev->adev_bustype; 314 wd->openings = adev->adev_openings; 315 wd->drvp = adev->adev_drv_data; 316 317 wd->drvp->drv_done = wddone; 318 wd->drvp->drv_softc = &wd->sc_dev; 319 320 aprint_naive("\n"); 321 322 /* read our drive info */ 323 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 324 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 325 return; 326 } 327 328 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 329 i < sizeof(wd->sc_params.atap_model); i++) { 330 c = *p++; 331 if (c == '\0') 332 break; 333 if (c != ' ') { 334 if (blank) { 335 *q++ = ' '; 336 blank = 0; 337 } 338 *q++ = c; 339 } else 340 blank = 1; 341 } 342 *q++ = '\0'; 343 344 aprint_normal(": <%s>\n", tbuf); 345 346 wdq = wd_lookup_quirks(tbuf); 347 if (wdq != NULL) 348 wd->sc_quirks = wdq->wdq_quirks; 349 350 if (wd->sc_quirks != 0) { 351 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 352 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 353 sbuf, sizeof(sbuf)); 354 aprint_normal("%s: quirks %s\n", wd->sc_dev.dv_xname, sbuf); 355 } 356 357 if ((wd->sc_params.atap_multi & 0xff) > 1) { 358 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 359 } else { 360 wd->sc_multi = 1; 361 } 362 363 aprint_verbose("%s: drive supports %d-sector PIO transfers,", 364 wd->sc_dev.dv_xname, wd->sc_multi); 365 366 /* 48-bit LBA addressing */ 367 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 368 wd->sc_flags |= WDF_LBA48; 369 370 /* Prior to ATA-4, LBA was optional. */ 371 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 372 wd->sc_flags |= WDF_LBA; 373 #if 0 374 /* ATA-4 requires LBA. */ 375 if (wd->sc_params.atap_ataversion != 0xffff && 376 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 377 wd->sc_flags |= WDF_LBA; 378 #endif 379 380 if ((wd->sc_flags & WDF_LBA48) != 0) { 381 aprint_verbose(" LBA48 addressing\n"); 382 wd->sc_capacity = 383 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 384 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 385 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 386 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 387 } else if ((wd->sc_flags & WDF_LBA) != 0) { 388 aprint_verbose(" LBA addressing\n"); 389 wd->sc_capacity = 390 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 391 wd->sc_params.atap_capacity[0]; 392 } else { 393 aprint_verbose(" chs addressing\n"); 394 wd->sc_capacity = 395 wd->sc_params.atap_cylinders * 396 wd->sc_params.atap_heads * 397 wd->sc_params.atap_sectors; 398 } 399 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 400 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 401 "%d bytes/sect x %llu sectors\n", 402 self->dv_xname, pbuf, 403 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 404 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 405 wd->sc_params.atap_cylinders, 406 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 407 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 408 409 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 410 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 411 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 412 /* 413 * Initialize and attach the disk structure. 414 */ 415 /* we fill in dk_info later */ 416 disk_init(&wd->sc_dk, wd->sc_dev.dv_xname, &wddkdriver); 417 disk_attach(&wd->sc_dk); 418 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 419 #if NRND > 0 420 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 421 RND_TYPE_DISK, 0); 422 #endif 423 424 /* Discover wedges on this disk. */ 425 dkwedge_discover(&wd->sc_dk); 426 427 if (!pmf_device_register(self, wd_suspend, NULL)) 428 aprint_error_dev(self, "couldn't establish power handler\n"); 429 } 430 431 static bool 432 wd_suspend(device_t dv) 433 { 434 struct wd_softc *sc = device_private(dv); 435 /* For shutdown and panic processing, use polling. */ 436 int modus = doing_shutdown ? AT_POLL : AT_WAIT; 437 438 wd_flushcache(sc, modus); 439 /* 440 * Only put the disk into standby mode if this not a shutdown or 441 * if this is an explicit halt -p. 442 */ 443 if (doing_shutdown == 0 || 444 (boothowto & RB_POWERDOWN) == RB_POWERDOWN) 445 wd_standby(sc, modus); 446 447 return true; 448 } 449 450 int 451 wdactivate(struct device *self, enum devact act) 452 { 453 int rv = 0; 454 455 switch (act) { 456 case DVACT_ACTIVATE: 457 rv = EOPNOTSUPP; 458 break; 459 460 case DVACT_DEACTIVATE: 461 /* 462 * Nothing to do; we key off the device's DVF_ACTIVATE. 463 */ 464 break; 465 } 466 return (rv); 467 } 468 469 int 470 wddetach(struct device *self, int flags) 471 { 472 struct wd_softc *sc = (struct wd_softc *)self; 473 int s, bmaj, cmaj, i, mn; 474 475 /* locate the major number */ 476 bmaj = bdevsw_lookup_major(&wd_bdevsw); 477 cmaj = cdevsw_lookup_major(&wd_cdevsw); 478 479 /* Nuke the vnodes for any open instances. */ 480 for (i = 0; i < MAXPARTITIONS; i++) { 481 mn = WDMINOR(device_unit(self), i); 482 vdevgone(bmaj, mn, mn, VBLK); 483 vdevgone(cmaj, mn, mn, VCHR); 484 } 485 486 /* Delete all of our wedges. */ 487 dkwedge_delall(&sc->sc_dk); 488 489 s = splbio(); 490 491 /* Kill off any queued buffers. */ 492 bufq_drain(sc->sc_q); 493 494 bufq_free(sc->sc_q); 495 sc->atabus->ata_killpending(sc->drvp); 496 497 splx(s); 498 499 /* Detach disk. */ 500 disk_detach(&sc->sc_dk); 501 502 #ifdef WD_SOFTBADSECT 503 /* Clean out the bad sector list */ 504 while (!SLIST_EMPTY(&sc->sc_bslist)) { 505 void *head = SLIST_FIRST(&sc->sc_bslist); 506 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 507 free(head, M_TEMP); 508 } 509 sc->sc_bscount = 0; 510 #endif 511 512 pmf_device_deregister(self); 513 514 #if NRND > 0 515 /* Unhook the entropy source. */ 516 rnd_detach_source(&sc->rnd_source); 517 #endif 518 519 sc->drvp->drive_flags = 0; /* no drive any more here */ 520 521 return (0); 522 } 523 524 /* 525 * Read/write routine for a buffer. Validates the arguments and schedules the 526 * transfer. Does not wait for the transfer to complete. 527 */ 528 void 529 wdstrategy(struct buf *bp) 530 { 531 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 532 struct disklabel *lp = wd->sc_dk.dk_label; 533 daddr_t blkno; 534 int s; 535 536 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 537 DEBUG_XFERS); 538 539 /* Valid request? */ 540 if (bp->b_blkno < 0 || 541 (bp->b_bcount % lp->d_secsize) != 0 || 542 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 543 bp->b_error = EINVAL; 544 goto done; 545 } 546 547 /* If device invalidated (e.g. media change, door open), error. */ 548 if ((wd->sc_flags & WDF_LOADED) == 0) { 549 bp->b_error = EIO; 550 goto done; 551 } 552 553 /* If it's a null transfer, return immediately. */ 554 if (bp->b_bcount == 0) 555 goto done; 556 557 /* 558 * Do bounds checking, adjust transfer. if error, process. 559 * If end of partition, just return. 560 */ 561 if (WDPART(bp->b_dev) == RAW_PART) { 562 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 563 wd->sc_capacity) <= 0) 564 goto done; 565 } else { 566 if (bounds_check_with_label(&wd->sc_dk, bp, 567 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 568 goto done; 569 } 570 571 /* 572 * Now convert the block number to absolute and put it in 573 * terms of the device's logical block size. 574 */ 575 if (lp->d_secsize >= DEV_BSIZE) 576 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 577 else 578 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 579 580 if (WDPART(bp->b_dev) != RAW_PART) 581 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 582 583 bp->b_rawblkno = blkno; 584 585 #ifdef WD_SOFTBADSECT 586 /* 587 * If the transfer about to be attempted contains only a block that 588 * is known to be bad then return an error for the transfer without 589 * even attempting to start a transfer up under the premis that we 590 * will just end up doing more retries for a transfer that will end 591 * up failing again. 592 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 593 */ 594 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 595 struct disk_badsectors *dbs; 596 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 597 598 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 599 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 600 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 601 bp->b_error = EIO; 602 goto done; 603 } 604 } 605 #endif 606 607 /* Queue transfer on drive, activate drive and controller if idle. */ 608 s = splbio(); 609 BUFQ_PUT(wd->sc_q, bp); 610 wdstart(wd); 611 splx(s); 612 return; 613 done: 614 /* Toss transfer; we're done early. */ 615 bp->b_resid = bp->b_bcount; 616 biodone(bp); 617 } 618 619 /* 620 * Queue a drive for I/O. 621 */ 622 void 623 wdstart(void *arg) 624 { 625 struct wd_softc *wd = arg; 626 struct buf *bp = NULL; 627 628 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 629 DEBUG_XFERS); 630 while (wd->openings > 0) { 631 632 /* Is there a buf for us ? */ 633 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 634 return; 635 636 /* 637 * Make the command. First lock the device 638 */ 639 wd->openings--; 640 641 wd->retries = 0; 642 __wdstart(wd, bp); 643 } 644 } 645 646 static void 647 wd_split_mod15_write(struct buf *bp) 648 { 649 struct buf *obp = bp->b_private; 650 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 651 652 if (__predict_false(bp->b_error != 0)) { 653 /* 654 * Propagate the error. If this was the first half of 655 * the original transfer, make sure to account for that 656 * in the residual. 657 */ 658 if (bp->b_data == obp->b_data) 659 bp->b_resid += bp->b_bcount; 660 goto done; 661 } 662 663 /* 664 * If this was the second half of the transfer, we're all done! 665 */ 666 if (bp->b_data != obp->b_data) 667 goto done; 668 669 /* 670 * Advance the pointer to the second half and issue that command 671 * using the same opening. 672 */ 673 bp->b_flags = obp->b_flags | B_CALL; 674 bp->b_data = (char *)bp->b_data + bp->b_bcount; 675 bp->b_blkno += (bp->b_bcount / 512); 676 bp->b_rawblkno += (bp->b_bcount / 512); 677 __wdstart(sc, bp); 678 return; 679 680 done: 681 obp->b_error = bp->b_error; 682 obp->b_resid = bp->b_resid; 683 putiobuf(bp); 684 biodone(obp); 685 sc->openings++; 686 /* wddone() will call wdstart() */ 687 } 688 689 void 690 __wdstart(struct wd_softc *wd, struct buf *bp) 691 { 692 693 /* 694 * Deal with the "split mod15 write" quirk. We just divide the 695 * transfer in two, doing the first half and then then second half 696 * with the same command opening. 697 * 698 * Note we MUST do this here, because we can't let insertion 699 * into the bufq cause the transfers to be re-merged. 700 */ 701 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 702 (bp->b_flags & B_READ) == 0 && 703 bp->b_bcount > 512 && 704 ((bp->b_bcount / 512) % 15) == 1)) { 705 struct buf *nbp; 706 707 /* already at splbio */ 708 nbp = getiobuf_nowait(); 709 if (__predict_false(nbp == NULL)) { 710 /* No memory -- fail the iop. */ 711 bp->b_error = ENOMEM; 712 bp->b_resid = bp->b_bcount; 713 biodone(bp); 714 wd->openings++; 715 return; 716 } 717 718 nbp->b_error = 0; 719 nbp->b_proc = bp->b_proc; 720 nbp->b_vp = NULLVP; 721 nbp->b_dev = bp->b_dev; 722 723 nbp->b_bcount = bp->b_bcount / 2; 724 nbp->b_bufsize = bp->b_bcount / 2; 725 nbp->b_data = bp->b_data; 726 727 nbp->b_blkno = bp->b_blkno; 728 nbp->b_rawblkno = bp->b_rawblkno; 729 730 nbp->b_flags = bp->b_flags | B_CALL; 731 nbp->b_iodone = wd_split_mod15_write; 732 733 /* Put ptr to orig buf in b_private and use new buf */ 734 nbp->b_private = bp; 735 736 BIO_COPYPRIO(nbp, bp); 737 738 bp = nbp; 739 } 740 741 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 742 wd->sc_wdc_bio.blkdone =0; 743 wd->sc_bp = bp; 744 /* 745 * If we're retrying, retry in single-sector mode. This will give us 746 * the sector number of the problem, and will eventually allow the 747 * transfer to succeed. 748 */ 749 if (wd->retries >= WDIORETRIES_SINGLE) 750 wd->sc_wdc_bio.flags = ATA_SINGLE; 751 else 752 wd->sc_wdc_bio.flags = 0; 753 if (wd->sc_flags & WDF_LBA48 && 754 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 755 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 756 wd->sc_wdc_bio.flags |= ATA_LBA48; 757 if (wd->sc_flags & WDF_LBA) 758 wd->sc_wdc_bio.flags |= ATA_LBA; 759 if (bp->b_flags & B_READ) 760 wd->sc_wdc_bio.flags |= ATA_READ; 761 wd->sc_wdc_bio.bcount = bp->b_bcount; 762 wd->sc_wdc_bio.databuf = bp->b_data; 763 /* Instrumentation. */ 764 disk_busy(&wd->sc_dk); 765 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 766 case ATACMD_TRY_AGAIN: 767 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 768 break; 769 case ATACMD_QUEUED: 770 case ATACMD_COMPLETE: 771 break; 772 default: 773 panic("__wdstart: bad return code from ata_bio()"); 774 } 775 } 776 777 void 778 wddone(void *v) 779 { 780 struct wd_softc *wd = v; 781 struct buf *bp = wd->sc_bp; 782 const char *errmsg; 783 int do_perror = 0; 784 int nblks; 785 786 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 787 DEBUG_XFERS); 788 if (bp == NULL) 789 return; 790 bp->b_resid = wd->sc_wdc_bio.bcount; 791 switch (wd->sc_wdc_bio.error) { 792 case ERR_DMA: 793 errmsg = "DMA error"; 794 goto retry; 795 case ERR_DF: 796 errmsg = "device fault"; 797 goto retry; 798 case TIMEOUT: 799 errmsg = "device timeout"; 800 goto retry; 801 case ERR_RESET: 802 errmsg = "channel reset"; 803 goto retry2; 804 case ERROR: 805 /* Don't care about media change bits */ 806 if (wd->sc_wdc_bio.r_error != 0 && 807 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 808 goto noerror; 809 errmsg = "error"; 810 do_perror = 1; 811 if (wd->sc_wdc_bio.r_error & WDCE_IDNF && 812 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 813 nblks = wd->sc_wdc_bio.bcount / 814 wd->sc_dk.dk_label->d_secsize; 815 /* 816 * If we get a "id not found" when crossing the 817 * LBA48_THRESHOLD, and the drive is larger than 818 * 128GB, then we can assume the drive has the 819 * LBA48 bug and we switch to LBA48. 820 */ 821 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 822 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 823 wd->sc_capacity > LBA48_THRESHOLD + 1) { 824 errmsg = "LBA48 bug"; 825 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 826 do_perror = 0; 827 goto retry2; 828 } 829 } 830 retry: /* Just reset and retry. Can we do more ? */ 831 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 832 retry2: 833 diskerr(bp, "wd", errmsg, LOG_PRINTF, 834 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 835 if (wd->retries < WDIORETRIES) 836 printf(", retrying"); 837 printf("\n"); 838 if (do_perror) 839 wdperror(wd); 840 if (wd->retries < WDIORETRIES) { 841 wd->retries++; 842 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 843 wdrestart, wd); 844 return; 845 } 846 847 #ifdef WD_SOFTBADSECT 848 /* 849 * Not all errors indicate a failed block but those that do, 850 * put the block on the bad-block list for the device. Only 851 * do this for reads because the drive should do it for writes, 852 * itself, according to Manuel. 853 */ 854 if ((bp->b_flags & B_READ) && 855 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 856 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 857 struct disk_badsectors *dbs; 858 859 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 860 dbs->dbs_min = bp->b_rawblkno; 861 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 862 microtime(&dbs->dbs_failedat); 863 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 864 wd->sc_bscount++; 865 } 866 #endif 867 bp->b_error = EIO; 868 break; 869 case NOERROR: 870 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 871 printf("%s: soft error (corrected)\n", 872 wd->sc_dev.dv_xname); 873 break; 874 case ERR_NODEV: 875 bp->b_error = EIO; 876 break; 877 } 878 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 879 (bp->b_flags & B_READ)); 880 #if NRND > 0 881 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 882 #endif 883 /* XXX Yuck, but we don't want to increment openings in this case */ 884 if (__predict_false((bp->b_flags & B_CALL) != 0 && 885 bp->b_iodone == wd_split_mod15_write)) 886 biodone(bp); 887 else { 888 biodone(bp); 889 wd->openings++; 890 } 891 wdstart(wd); 892 } 893 894 void 895 wdrestart(void *v) 896 { 897 struct wd_softc *wd = v; 898 struct buf *bp = wd->sc_bp; 899 int s; 900 901 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 902 DEBUG_XFERS); 903 s = splbio(); 904 __wdstart(v, bp); 905 splx(s); 906 } 907 908 int 909 wdread(dev_t dev, struct uio *uio, int flags) 910 { 911 912 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 913 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 914 } 915 916 int 917 wdwrite(dev_t dev, struct uio *uio, int flags) 918 { 919 920 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 921 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 922 } 923 924 int 925 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 926 { 927 struct wd_softc *wd; 928 int part, error; 929 930 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 931 wd = device_lookup(&wd_cd, WDUNIT(dev)); 932 if (wd == NULL) 933 return (ENXIO); 934 935 if (! device_is_active(&wd->sc_dev)) 936 return (ENODEV); 937 938 part = WDPART(dev); 939 940 mutex_enter(&wd->sc_dk.dk_openlock); 941 942 /* 943 * If there are wedges, and this is not RAW_PART, then we 944 * need to fail. 945 */ 946 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 947 error = EBUSY; 948 goto bad1; 949 } 950 951 /* 952 * If this is the first open of this device, add a reference 953 * to the adapter. 954 */ 955 if (wd->sc_dk.dk_openmask == 0 && 956 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 957 goto bad1; 958 959 if (wd->sc_dk.dk_openmask != 0) { 960 /* 961 * If any partition is open, but the disk has been invalidated, 962 * disallow further opens. 963 */ 964 if ((wd->sc_flags & WDF_LOADED) == 0) { 965 error = EIO; 966 goto bad2; 967 } 968 } else { 969 if ((wd->sc_flags & WDF_LOADED) == 0) { 970 wd->sc_flags |= WDF_LOADED; 971 972 /* Load the physical device parameters. */ 973 wd_get_params(wd, AT_WAIT, &wd->sc_params); 974 975 /* Load the partition info if not already loaded. */ 976 wdgetdisklabel(wd); 977 } 978 } 979 980 /* Check that the partition exists. */ 981 if (part != RAW_PART && 982 (part >= wd->sc_dk.dk_label->d_npartitions || 983 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 984 error = ENXIO; 985 goto bad2; 986 } 987 988 /* Insure only one open at a time. */ 989 switch (fmt) { 990 case S_IFCHR: 991 wd->sc_dk.dk_copenmask |= (1 << part); 992 break; 993 case S_IFBLK: 994 wd->sc_dk.dk_bopenmask |= (1 << part); 995 break; 996 } 997 wd->sc_dk.dk_openmask = 998 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 999 1000 mutex_exit(&wd->sc_dk.dk_openlock); 1001 return 0; 1002 1003 bad2: 1004 if (wd->sc_dk.dk_openmask == 0) 1005 wd->atabus->ata_delref(wd->drvp); 1006 bad1: 1007 mutex_exit(&wd->sc_dk.dk_openlock); 1008 return error; 1009 } 1010 1011 int 1012 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1013 { 1014 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1015 int part = WDPART(dev); 1016 1017 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1018 1019 mutex_enter(&wd->sc_dk.dk_openlock); 1020 1021 switch (fmt) { 1022 case S_IFCHR: 1023 wd->sc_dk.dk_copenmask &= ~(1 << part); 1024 break; 1025 case S_IFBLK: 1026 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1027 break; 1028 } 1029 wd->sc_dk.dk_openmask = 1030 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1031 1032 if (wd->sc_dk.dk_openmask == 0) { 1033 wd_flushcache(wd, AT_WAIT); 1034 1035 if (! (wd->sc_flags & WDF_KLABEL)) 1036 wd->sc_flags &= ~WDF_LOADED; 1037 1038 wd->atabus->ata_delref(wd->drvp); 1039 } 1040 1041 mutex_exit(&wd->sc_dk.dk_openlock); 1042 return 0; 1043 } 1044 1045 void 1046 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1047 { 1048 1049 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1050 memset(lp, 0, sizeof(struct disklabel)); 1051 1052 lp->d_secsize = DEV_BSIZE; 1053 lp->d_ntracks = wd->sc_params.atap_heads; 1054 lp->d_nsectors = wd->sc_params.atap_sectors; 1055 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1056 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1057 wd->sc_params.atap_cylinders; 1058 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1059 1060 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1061 lp->d_type = DTYPE_ST506; 1062 else 1063 lp->d_type = DTYPE_ESDI; 1064 1065 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1066 strncpy(lp->d_packname, "fictitious", 16); 1067 if (wd->sc_capacity > UINT32_MAX) 1068 lp->d_secperunit = UINT32_MAX; 1069 else 1070 lp->d_secperunit = wd->sc_capacity; 1071 lp->d_rpm = 3600; 1072 lp->d_interleave = 1; 1073 lp->d_flags = 0; 1074 1075 lp->d_partitions[RAW_PART].p_offset = 0; 1076 lp->d_partitions[RAW_PART].p_size = 1077 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1078 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1079 lp->d_npartitions = RAW_PART + 1; 1080 1081 lp->d_magic = DISKMAGIC; 1082 lp->d_magic2 = DISKMAGIC; 1083 lp->d_checksum = dkcksum(lp); 1084 } 1085 1086 /* 1087 * Fabricate a default disk label, and try to read the correct one. 1088 */ 1089 void 1090 wdgetdisklabel(struct wd_softc *wd) 1091 { 1092 struct disklabel *lp = wd->sc_dk.dk_label; 1093 const char *errstring; 1094 int s; 1095 1096 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1097 1098 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1099 1100 wdgetdefaultlabel(wd, lp); 1101 1102 wd->sc_badsect[0] = -1; 1103 1104 if (wd->drvp->state > RESET) { 1105 s = splbio(); 1106 wd->drvp->drive_flags |= DRIVE_RESET; 1107 splx(s); 1108 } 1109 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1110 RAW_PART), wdstrategy, lp, 1111 wd->sc_dk.dk_cpulabel); 1112 if (errstring) { 1113 /* 1114 * This probably happened because the drive's default 1115 * geometry doesn't match the DOS geometry. We 1116 * assume the DOS geometry is now in the label and try 1117 * again. XXX This is a kluge. 1118 */ 1119 if (wd->drvp->state > RESET) { 1120 s = splbio(); 1121 wd->drvp->drive_flags |= DRIVE_RESET; 1122 splx(s); 1123 } 1124 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1125 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1126 } 1127 if (errstring) { 1128 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1129 return; 1130 } 1131 1132 if (wd->drvp->state > RESET) { 1133 s = splbio(); 1134 wd->drvp->drive_flags |= DRIVE_RESET; 1135 splx(s); 1136 } 1137 #ifdef HAS_BAD144_HANDLING 1138 if ((lp->d_flags & D_BADSECT) != 0) 1139 bad144intern(wd); 1140 #endif 1141 } 1142 1143 void 1144 wdperror(const struct wd_softc *wd) 1145 { 1146 static const char *const errstr0_3[] = {"address mark not found", 1147 "track 0 not found", "aborted command", "media change requested", 1148 "id not found", "media changed", "uncorrectable data error", 1149 "bad block detected"}; 1150 static const char *const errstr4_5[] = { 1151 "obsolete (address mark not found)", 1152 "no media/write protected", "aborted command", 1153 "media change requested", "id not found", "media changed", 1154 "uncorrectable data error", "interface CRC error"}; 1155 const char *const *errstr; 1156 int i; 1157 const char *sep = ""; 1158 1159 const char *devname = wd->sc_dev.dv_xname; 1160 struct ata_drive_datas *drvp = wd->drvp; 1161 int errno = wd->sc_wdc_bio.r_error; 1162 1163 if (drvp->ata_vers >= 4) 1164 errstr = errstr4_5; 1165 else 1166 errstr = errstr0_3; 1167 1168 printf("%s: (", devname); 1169 1170 if (errno == 0) 1171 printf("error not notified"); 1172 1173 for (i = 0; i < 8; i++) { 1174 if (errno & (1 << i)) { 1175 printf("%s%s", sep, errstr[i]); 1176 sep = ", "; 1177 } 1178 } 1179 printf(")\n"); 1180 } 1181 1182 int 1183 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1184 { 1185 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1186 int error = 0, s; 1187 #ifdef __HAVE_OLD_DISKLABEL 1188 struct disklabel *newlabel = NULL; 1189 #endif 1190 1191 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1192 1193 if ((wd->sc_flags & WDF_LOADED) == 0) 1194 return EIO; 1195 1196 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1197 if (error != EPASSTHROUGH) 1198 return (error); 1199 1200 switch (xfer) { 1201 #ifdef HAS_BAD144_HANDLING 1202 case DIOCSBAD: 1203 if ((flag & FWRITE) == 0) 1204 return EBADF; 1205 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1206 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1207 bad144intern(wd); 1208 return 0; 1209 #endif 1210 #ifdef WD_SOFTBADSECT 1211 case DIOCBSLIST : 1212 { 1213 u_int32_t count, missing, skip; 1214 struct disk_badsecinfo dbsi; 1215 struct disk_badsectors *dbs; 1216 size_t available; 1217 uint8_t *laddr; 1218 1219 dbsi = *(struct disk_badsecinfo *)addr; 1220 missing = wd->sc_bscount; 1221 count = 0; 1222 available = dbsi.dbsi_bufsize; 1223 skip = dbsi.dbsi_skip; 1224 laddr = (uint8_t *)dbsi.dbsi_buffer; 1225 1226 /* 1227 * We start this loop with the expectation that all of the 1228 * entries will be missed and decrement this counter each 1229 * time we either skip over one (already copied out) or 1230 * we actually copy it back to user space. The structs 1231 * holding the bad sector information are copied directly 1232 * back to user space whilst the summary is returned via 1233 * the struct passed in via the ioctl. 1234 */ 1235 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1236 if (skip > 0) { 1237 missing--; 1238 skip--; 1239 continue; 1240 } 1241 if (available < sizeof(*dbs)) 1242 break; 1243 available -= sizeof(*dbs); 1244 copyout(dbs, laddr, sizeof(*dbs)); 1245 laddr += sizeof(*dbs); 1246 missing--; 1247 count++; 1248 } 1249 dbsi.dbsi_left = missing; 1250 dbsi.dbsi_copied = count; 1251 *(struct disk_badsecinfo *)addr = dbsi; 1252 return 0; 1253 } 1254 1255 case DIOCBSFLUSH : 1256 /* Clean out the bad sector list */ 1257 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1258 void *head = SLIST_FIRST(&wd->sc_bslist); 1259 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1260 free(head, M_TEMP); 1261 } 1262 wd->sc_bscount = 0; 1263 return 0; 1264 #endif 1265 case DIOCGDINFO: 1266 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1267 return 0; 1268 #ifdef __HAVE_OLD_DISKLABEL 1269 case ODIOCGDINFO: 1270 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1271 if (newlabel == NULL) 1272 return EIO; 1273 *newlabel = *(wd->sc_dk.dk_label); 1274 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1275 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1276 else 1277 error = ENOTTY; 1278 free(newlabel, M_TEMP); 1279 return error; 1280 #endif 1281 1282 case DIOCGPART: 1283 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1284 ((struct partinfo *)addr)->part = 1285 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1286 return 0; 1287 1288 case DIOCWDINFO: 1289 case DIOCSDINFO: 1290 #ifdef __HAVE_OLD_DISKLABEL 1291 case ODIOCWDINFO: 1292 case ODIOCSDINFO: 1293 #endif 1294 { 1295 struct disklabel *lp; 1296 1297 if ((flag & FWRITE) == 0) 1298 return EBADF; 1299 1300 #ifdef __HAVE_OLD_DISKLABEL 1301 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1302 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1303 if (newlabel == NULL) 1304 return EIO; 1305 memset(newlabel, 0, sizeof newlabel); 1306 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1307 lp = newlabel; 1308 } else 1309 #endif 1310 lp = (struct disklabel *)addr; 1311 1312 mutex_enter(&wd->sc_dk.dk_openlock); 1313 wd->sc_flags |= WDF_LABELLING; 1314 1315 error = setdisklabel(wd->sc_dk.dk_label, 1316 lp, /*wd->sc_dk.dk_openmask : */0, 1317 wd->sc_dk.dk_cpulabel); 1318 if (error == 0) { 1319 if (wd->drvp->state > RESET) { 1320 s = splbio(); 1321 wd->drvp->drive_flags |= DRIVE_RESET; 1322 splx(s); 1323 } 1324 if (xfer == DIOCWDINFO 1325 #ifdef __HAVE_OLD_DISKLABEL 1326 || xfer == ODIOCWDINFO 1327 #endif 1328 ) 1329 error = writedisklabel(WDLABELDEV(dev), 1330 wdstrategy, wd->sc_dk.dk_label, 1331 wd->sc_dk.dk_cpulabel); 1332 } 1333 1334 wd->sc_flags &= ~WDF_LABELLING; 1335 mutex_exit(&wd->sc_dk.dk_openlock); 1336 #ifdef __HAVE_OLD_DISKLABEL 1337 if (newlabel != NULL) 1338 free(newlabel, M_TEMP); 1339 #endif 1340 return error; 1341 } 1342 1343 case DIOCKLABEL: 1344 if (*(int *)addr) 1345 wd->sc_flags |= WDF_KLABEL; 1346 else 1347 wd->sc_flags &= ~WDF_KLABEL; 1348 return 0; 1349 1350 case DIOCWLABEL: 1351 if ((flag & FWRITE) == 0) 1352 return EBADF; 1353 if (*(int *)addr) 1354 wd->sc_flags |= WDF_WLABEL; 1355 else 1356 wd->sc_flags &= ~WDF_WLABEL; 1357 return 0; 1358 1359 case DIOCGDEFLABEL: 1360 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1361 return 0; 1362 #ifdef __HAVE_OLD_DISKLABEL 1363 case ODIOCGDEFLABEL: 1364 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1365 if (newlabel == NULL) 1366 return EIO; 1367 wdgetdefaultlabel(wd, newlabel); 1368 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1369 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1370 else 1371 error = ENOTTY; 1372 free(newlabel, M_TEMP); 1373 return error; 1374 #endif 1375 1376 #ifdef notyet 1377 case DIOCWFORMAT: 1378 if ((flag & FWRITE) == 0) 1379 return EBADF; 1380 { 1381 register struct format_op *fop; 1382 struct iovec aiov; 1383 struct uio auio; 1384 1385 fop = (struct format_op *)addr; 1386 aiov.iov_base = fop->df_buf; 1387 aiov.iov_len = fop->df_count; 1388 auio.uio_iov = &aiov; 1389 auio.uio_iovcnt = 1; 1390 auio.uio_resid = fop->df_count; 1391 auio.uio_offset = 1392 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1393 auio.uio_vmspace = l->l_proc->p_vmspace; 1394 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1395 &auio); 1396 fop->df_count -= auio.uio_resid; 1397 fop->df_reg[0] = wdc->sc_status; 1398 fop->df_reg[1] = wdc->sc_error; 1399 return error; 1400 } 1401 #endif 1402 case DIOCGCACHE: 1403 return wd_getcache(wd, (int *)addr); 1404 1405 case DIOCSCACHE: 1406 return wd_setcache(wd, *(int *)addr); 1407 1408 case DIOCCACHESYNC: 1409 return wd_flushcache(wd, AT_WAIT); 1410 1411 case ATAIOCCOMMAND: 1412 /* 1413 * Make sure this command is (relatively) safe first 1414 */ 1415 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1416 (flag & FWRITE) == 0) 1417 return (EBADF); 1418 { 1419 struct wd_ioctl *wi; 1420 atareq_t *atareq = (atareq_t *) addr; 1421 int error1; 1422 1423 wi = wi_get(); 1424 wi->wi_softc = wd; 1425 wi->wi_atareq = *atareq; 1426 1427 if (atareq->datalen && atareq->flags & 1428 (ATACMD_READ | ATACMD_WRITE)) { 1429 void *tbuf; 1430 if (atareq->datalen < DEV_BSIZE 1431 && atareq->command == WDCC_IDENTIFY) { 1432 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1433 wi->wi_iov.iov_base = tbuf; 1434 wi->wi_iov.iov_len = DEV_BSIZE; 1435 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1436 } else { 1437 tbuf = NULL; 1438 wi->wi_iov.iov_base = atareq->databuf; 1439 wi->wi_iov.iov_len = atareq->datalen; 1440 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1441 } 1442 wi->wi_uio.uio_iov = &wi->wi_iov; 1443 wi->wi_uio.uio_iovcnt = 1; 1444 wi->wi_uio.uio_resid = atareq->datalen; 1445 wi->wi_uio.uio_offset = 0; 1446 wi->wi_uio.uio_rw = 1447 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1448 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1449 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1450 minphys, &wi->wi_uio); 1451 if (tbuf != NULL && error1 == 0) { 1452 error1 = copyout(tbuf, atareq->databuf, 1453 atareq->datalen); 1454 free(tbuf, M_TEMP); 1455 } 1456 } else { 1457 /* No need to call physio if we don't have any 1458 user data */ 1459 wi->wi_bp.b_flags = 0; 1460 wi->wi_bp.b_data = 0; 1461 wi->wi_bp.b_bcount = 0; 1462 wi->wi_bp.b_dev = 0; 1463 wi->wi_bp.b_proc = l->l_proc; 1464 wdioctlstrategy(&wi->wi_bp); 1465 error1 = wi->wi_bp.b_error; 1466 } 1467 *atareq = wi->wi_atareq; 1468 wi_free(wi); 1469 return(error1); 1470 } 1471 1472 case DIOCAWEDGE: 1473 { 1474 struct dkwedge_info *dkw = (void *) addr; 1475 1476 if ((flag & FWRITE) == 0) 1477 return (EBADF); 1478 1479 /* If the ioctl happens here, the parent is us. */ 1480 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1481 return (dkwedge_add(dkw)); 1482 } 1483 1484 case DIOCDWEDGE: 1485 { 1486 struct dkwedge_info *dkw = (void *) addr; 1487 1488 if ((flag & FWRITE) == 0) 1489 return (EBADF); 1490 1491 /* If the ioctl happens here, the parent is us. */ 1492 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1493 return (dkwedge_del(dkw)); 1494 } 1495 1496 case DIOCLWEDGES: 1497 { 1498 struct dkwedge_list *dkwl = (void *) addr; 1499 1500 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1501 } 1502 1503 case DIOCGSTRATEGY: 1504 { 1505 struct disk_strategy *dks = (void *)addr; 1506 1507 s = splbio(); 1508 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1509 sizeof(dks->dks_name)); 1510 splx(s); 1511 dks->dks_paramlen = 0; 1512 1513 return 0; 1514 } 1515 1516 case DIOCSSTRATEGY: 1517 { 1518 struct disk_strategy *dks = (void *)addr; 1519 struct bufq_state *new; 1520 struct bufq_state *old; 1521 1522 if ((flag & FWRITE) == 0) { 1523 return EBADF; 1524 } 1525 if (dks->dks_param != NULL) { 1526 return EINVAL; 1527 } 1528 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1529 error = bufq_alloc(&new, dks->dks_name, 1530 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1531 if (error) { 1532 return error; 1533 } 1534 s = splbio(); 1535 old = wd->sc_q; 1536 bufq_move(new, old); 1537 wd->sc_q = new; 1538 splx(s); 1539 bufq_free(old); 1540 1541 return 0; 1542 } 1543 1544 default: 1545 return ENOTTY; 1546 } 1547 1548 #ifdef DIAGNOSTIC 1549 panic("wdioctl: impossible"); 1550 #endif 1551 } 1552 1553 #ifdef B_FORMAT 1554 int 1555 wdformat(struct buf *bp) 1556 { 1557 1558 bp->b_flags |= B_FORMAT; 1559 return wdstrategy(bp); 1560 } 1561 #endif 1562 1563 int 1564 wdsize(dev_t dev) 1565 { 1566 struct wd_softc *wd; 1567 int part, omask; 1568 int size; 1569 1570 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1571 1572 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1573 if (wd == NULL) 1574 return (-1); 1575 1576 part = WDPART(dev); 1577 omask = wd->sc_dk.dk_openmask & (1 << part); 1578 1579 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1580 return (-1); 1581 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1582 size = -1; 1583 else 1584 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1585 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1586 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1587 return (-1); 1588 return (size); 1589 } 1590 1591 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1592 static int wddoingadump = 0; 1593 static int wddumprecalibrated = 0; 1594 1595 /* 1596 * Dump core after a system crash. 1597 */ 1598 int 1599 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1600 { 1601 struct wd_softc *wd; /* disk unit to do the I/O */ 1602 struct disklabel *lp; /* disk's disklabel */ 1603 int part, err; 1604 int nblks; /* total number of sectors left to write */ 1605 1606 /* Check if recursive dump; if so, punt. */ 1607 if (wddoingadump) 1608 return EFAULT; 1609 wddoingadump = 1; 1610 1611 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1612 if (wd == NULL) 1613 return (ENXIO); 1614 1615 part = WDPART(dev); 1616 1617 /* Convert to disk sectors. Request must be a multiple of size. */ 1618 lp = wd->sc_dk.dk_label; 1619 if ((size % lp->d_secsize) != 0) 1620 return EFAULT; 1621 nblks = size / lp->d_secsize; 1622 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1623 1624 /* Check transfer bounds against partition size. */ 1625 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1626 return EINVAL; 1627 1628 /* Offset block number to start of partition. */ 1629 blkno += lp->d_partitions[part].p_offset; 1630 1631 /* Recalibrate, if first dump transfer. */ 1632 if (wddumprecalibrated == 0) { 1633 wddumprecalibrated = 1; 1634 (*wd->atabus->ata_reset_drive)(wd->drvp, 1635 AT_POLL | AT_RST_EMERG); 1636 wd->drvp->state = RESET; 1637 } 1638 1639 wd->sc_bp = NULL; 1640 wd->sc_wdc_bio.blkno = blkno; 1641 wd->sc_wdc_bio.flags = ATA_POLL; 1642 if (wd->sc_flags & WDF_LBA48 && 1643 (blkno > LBA48_THRESHOLD || 1644 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1645 wd->sc_wdc_bio.flags |= ATA_LBA48; 1646 if (wd->sc_flags & WDF_LBA) 1647 wd->sc_wdc_bio.flags |= ATA_LBA; 1648 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1649 wd->sc_wdc_bio.databuf = va; 1650 #ifndef WD_DUMP_NOT_TRUSTED 1651 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1652 case ATACMD_TRY_AGAIN: 1653 panic("wddump: try again"); 1654 break; 1655 case ATACMD_QUEUED: 1656 panic("wddump: polled command has been queued"); 1657 break; 1658 case ATACMD_COMPLETE: 1659 break; 1660 } 1661 switch(wd->sc_wdc_bio.error) { 1662 case TIMEOUT: 1663 printf("wddump: device timed out"); 1664 err = EIO; 1665 break; 1666 case ERR_DF: 1667 printf("wddump: drive fault"); 1668 err = EIO; 1669 break; 1670 case ERR_DMA: 1671 printf("wddump: DMA error"); 1672 err = EIO; 1673 break; 1674 case ERROR: 1675 printf("wddump: "); 1676 wdperror(wd); 1677 err = EIO; 1678 break; 1679 case NOERROR: 1680 err = 0; 1681 break; 1682 default: 1683 panic("wddump: unknown error type"); 1684 } 1685 if (err != 0) { 1686 printf("\n"); 1687 return err; 1688 } 1689 #else /* WD_DUMP_NOT_TRUSTED */ 1690 /* Let's just talk about this first... */ 1691 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1692 unit, va, cylin, head, sector); 1693 delay(500 * 1000); /* half a second */ 1694 #endif 1695 1696 wddoingadump = 0; 1697 return 0; 1698 } 1699 1700 #ifdef HAS_BAD144_HANDLING 1701 /* 1702 * Internalize the bad sector table. 1703 */ 1704 void 1705 bad144intern(struct wd_softc *wd) 1706 { 1707 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1708 struct disklabel *lp = wd->sc_dk.dk_label; 1709 int i = 0; 1710 1711 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1712 1713 for (; i < NBT_BAD; i++) { 1714 if (bt->bt_bad[i].bt_cyl == 0xffff) 1715 break; 1716 wd->sc_badsect[i] = 1717 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1718 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1719 (bt->bt_bad[i].bt_trksec & 0xff); 1720 } 1721 for (; i < NBT_BAD+1; i++) 1722 wd->sc_badsect[i] = -1; 1723 } 1724 #endif 1725 1726 static void 1727 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1728 { 1729 prop_dictionary_t disk_info, odisk_info, geom; 1730 const char *cp; 1731 1732 disk_info = prop_dictionary_create(); 1733 1734 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1735 cp = "ST506"; 1736 else { 1737 /* XXX Should have a case for ATA here, too. */ 1738 cp = "ESDI"; 1739 } 1740 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1741 1742 geom = prop_dictionary_create(); 1743 1744 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1745 1746 prop_dictionary_set_uint32(geom, "sector-size", 1747 DEV_BSIZE /* XXX 512? */); 1748 1749 prop_dictionary_set_uint16(geom, "sectors-per-track", 1750 wd->sc_params.atap_sectors); 1751 1752 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1753 wd->sc_params.atap_heads); 1754 1755 if (wd->sc_flags & WDF_LBA) 1756 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1757 wd->sc_capacity / 1758 (wd->sc_params.atap_heads * 1759 wd->sc_params.atap_sectors)); 1760 else 1761 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1762 wd->sc_params.atap_cylinders); 1763 1764 prop_dictionary_set(disk_info, "geometry", geom); 1765 prop_object_release(geom); 1766 1767 prop_dictionary_set(device_properties(&wd->sc_dev), 1768 "disk-info", disk_info); 1769 1770 /* 1771 * Don't release disk_info here; we keep a reference to it. 1772 * disk_detach() will release it when we go away. 1773 */ 1774 1775 odisk_info = wd->sc_dk.dk_info; 1776 wd->sc_dk.dk_info = disk_info; 1777 if (odisk_info) 1778 prop_object_release(odisk_info); 1779 } 1780 1781 int 1782 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1783 { 1784 1785 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1786 case CMD_AGAIN: 1787 return 1; 1788 case CMD_ERR: 1789 /* 1790 * We `know' there's a drive here; just assume it's old. 1791 * This geometry is only used to read the MBR and print a 1792 * (false) attach message. 1793 */ 1794 strncpy(params->atap_model, "ST506", 1795 sizeof params->atap_model); 1796 params->atap_config = ATA_CFG_FIXED; 1797 params->atap_cylinders = 1024; 1798 params->atap_heads = 8; 1799 params->atap_sectors = 17; 1800 params->atap_multi = 1; 1801 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1802 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1803 /* FALLTHROUGH */ 1804 case CMD_OK: 1805 wd_params_to_properties(wd, params); 1806 return 0; 1807 default: 1808 panic("wd_get_params: bad return code from ata_get_params"); 1809 /* NOTREACHED */ 1810 } 1811 } 1812 1813 int 1814 wd_getcache(struct wd_softc *wd, int *bitsp) 1815 { 1816 struct ataparams params; 1817 1818 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1819 return EIO; 1820 if (params.atap_cmd_set1 == 0x0000 || 1821 params.atap_cmd_set1 == 0xffff || 1822 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1823 *bitsp = 0; 1824 return 0; 1825 } 1826 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1827 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1828 *bitsp |= DKCACHE_WRITE; 1829 1830 return 0; 1831 } 1832 1833 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1834 1835 int 1836 wd_setcache(struct wd_softc *wd, int bits) 1837 { 1838 struct ataparams params; 1839 struct ata_command ata_c; 1840 1841 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1842 return EIO; 1843 1844 if (params.atap_cmd_set1 == 0x0000 || 1845 params.atap_cmd_set1 == 0xffff || 1846 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1847 return EOPNOTSUPP; 1848 1849 if ((bits & DKCACHE_READ) == 0 || 1850 (bits & DKCACHE_SAVE) != 0) 1851 return EOPNOTSUPP; 1852 1853 memset(&ata_c, 0, sizeof(struct ata_command)); 1854 ata_c.r_command = SET_FEATURES; 1855 ata_c.r_st_bmask = 0; 1856 ata_c.r_st_pmask = 0; 1857 ata_c.timeout = 30000; /* 30s timeout */ 1858 ata_c.flags = AT_WAIT; 1859 if (bits & DKCACHE_WRITE) 1860 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1861 else 1862 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1863 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1864 printf("%s: wd_setcache command not complete\n", 1865 wd->sc_dev.dv_xname); 1866 return EIO; 1867 } 1868 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1869 char sbuf[sizeof(at_errbits) + 64]; 1870 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1871 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1872 sbuf); 1873 return EIO; 1874 } 1875 return 0; 1876 } 1877 1878 static int 1879 wd_standby(struct wd_softc *wd, int flags) 1880 { 1881 struct ata_command ata_c; 1882 1883 memset(&ata_c, 0, sizeof(struct ata_command)); 1884 ata_c.r_command = WDCC_STANDBY_IMMED; 1885 ata_c.r_st_bmask = WDCS_DRDY; 1886 ata_c.r_st_pmask = WDCS_DRDY; 1887 ata_c.flags = flags; 1888 ata_c.timeout = 30000; /* 30s timeout */ 1889 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1890 aprint_error_dev(&wd->sc_dev, 1891 "standby immediate command didn't complete\n"); 1892 return EIO; 1893 } 1894 if (ata_c.flags & AT_ERROR) { 1895 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1896 return ENODEV; 1897 } 1898 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1899 char sbuf[sizeof(at_errbits) + 64]; 1900 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1901 aprint_error_dev(&wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1902 return EIO; 1903 } 1904 return 0; 1905 } 1906 1907 int 1908 wd_flushcache(struct wd_softc *wd, int flags) 1909 { 1910 struct ata_command ata_c; 1911 1912 /* 1913 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1914 * only ATA-2 and still support it. 1915 */ 1916 if (wd->drvp->ata_vers < 4 && 1917 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1918 wd->sc_params.atap_cmd_set2 == 0xffff)) 1919 return ENODEV; 1920 memset(&ata_c, 0, sizeof(struct ata_command)); 1921 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1922 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1923 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1924 else 1925 ata_c.r_command = WDCC_FLUSHCACHE; 1926 ata_c.r_st_bmask = WDCS_DRDY; 1927 ata_c.r_st_pmask = WDCS_DRDY; 1928 ata_c.flags = flags; 1929 ata_c.timeout = 30000; /* 30s timeout */ 1930 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1931 printf("%s: flush cache command didn't complete\n", 1932 wd->sc_dev.dv_xname); 1933 return EIO; 1934 } 1935 if (ata_c.flags & AT_ERROR) { 1936 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1937 return ENODEV; 1938 } 1939 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1940 char sbuf[sizeof(at_errbits) + 64]; 1941 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1942 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1943 sbuf); 1944 return EIO; 1945 } 1946 return 0; 1947 } 1948 1949 /* 1950 * Allocate space for a ioctl queue structure. Mostly taken from 1951 * scsipi_ioctl.c 1952 */ 1953 struct wd_ioctl * 1954 wi_get(void) 1955 { 1956 struct wd_ioctl *wi; 1957 int s; 1958 1959 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1960 simple_lock_init(&wi->wi_bp.b_interlock); 1961 s = splbio(); 1962 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1963 splx(s); 1964 return (wi); 1965 } 1966 1967 /* 1968 * Free an ioctl structure and remove it from our list 1969 */ 1970 1971 void 1972 wi_free(struct wd_ioctl *wi) 1973 { 1974 int s; 1975 1976 s = splbio(); 1977 LIST_REMOVE(wi, wi_list); 1978 splx(s); 1979 free(wi, M_TEMP); 1980 } 1981 1982 /* 1983 * Find a wd_ioctl structure based on the struct buf. 1984 */ 1985 1986 struct wd_ioctl * 1987 wi_find(struct buf *bp) 1988 { 1989 struct wd_ioctl *wi; 1990 int s; 1991 1992 s = splbio(); 1993 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1994 if (bp == &wi->wi_bp) 1995 break; 1996 splx(s); 1997 return (wi); 1998 } 1999 2000 /* 2001 * Ioctl pseudo strategy routine 2002 * 2003 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2004 * happens here is: 2005 * 2006 * - wdioctl() queues a wd_ioctl structure. 2007 * 2008 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2009 * user space I/O is required. If physio() is called, physio() eventually 2010 * calls wdioctlstrategy(). 2011 * 2012 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2013 * to perform the actual command 2014 * 2015 * The reason for the use of the pseudo strategy routine is because 2016 * when doing I/O to/from user space, physio _really_ wants to be in 2017 * the loop. We could put the entire buffer into the ioctl request 2018 * structure, but that won't scale if we want to do things like download 2019 * microcode. 2020 */ 2021 2022 void 2023 wdioctlstrategy(struct buf *bp) 2024 { 2025 struct wd_ioctl *wi; 2026 struct ata_command ata_c; 2027 int error = 0; 2028 2029 wi = wi_find(bp); 2030 if (wi == NULL) { 2031 printf("wdioctlstrategy: " 2032 "No matching ioctl request found in queue\n"); 2033 error = EINVAL; 2034 goto done; 2035 } 2036 2037 memset(&ata_c, 0, sizeof(ata_c)); 2038 2039 /* 2040 * Abort if physio broke up the transfer 2041 */ 2042 2043 if (bp->b_bcount != wi->wi_atareq.datalen) { 2044 printf("physio split wd ioctl request... cannot proceed\n"); 2045 error = EIO; 2046 goto done; 2047 } 2048 2049 /* 2050 * Abort if we didn't get a buffer size that was a multiple of 2051 * our sector size (or was larger than NBBY) 2052 */ 2053 2054 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2055 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2056 (1 << NBBY)) { 2057 error = EINVAL; 2058 goto done; 2059 } 2060 2061 /* 2062 * Make sure a timeout was supplied in the ioctl request 2063 */ 2064 2065 if (wi->wi_atareq.timeout == 0) { 2066 error = EINVAL; 2067 goto done; 2068 } 2069 2070 if (wi->wi_atareq.flags & ATACMD_READ) 2071 ata_c.flags |= AT_READ; 2072 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2073 ata_c.flags |= AT_WRITE; 2074 2075 if (wi->wi_atareq.flags & ATACMD_READREG) 2076 ata_c.flags |= AT_READREG; 2077 2078 ata_c.flags |= AT_WAIT; 2079 2080 ata_c.timeout = wi->wi_atareq.timeout; 2081 ata_c.r_command = wi->wi_atareq.command; 2082 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2083 ata_c.r_cyl = wi->wi_atareq.cylinder; 2084 ata_c.r_sector = wi->wi_atareq.sec_num; 2085 ata_c.r_count = wi->wi_atareq.sec_count; 2086 ata_c.r_features = wi->wi_atareq.features; 2087 ata_c.r_st_bmask = WDCS_DRDY; 2088 ata_c.r_st_pmask = WDCS_DRDY; 2089 ata_c.data = wi->wi_bp.b_data; 2090 ata_c.bcount = wi->wi_bp.b_bcount; 2091 2092 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2093 != ATACMD_COMPLETE) { 2094 wi->wi_atareq.retsts = ATACMD_ERROR; 2095 error = EIO; 2096 goto done; 2097 } 2098 2099 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2100 if (ata_c.flags & AT_ERROR) { 2101 wi->wi_atareq.retsts = ATACMD_ERROR; 2102 wi->wi_atareq.error = ata_c.r_error; 2103 } else if (ata_c.flags & AT_DF) 2104 wi->wi_atareq.retsts = ATACMD_DF; 2105 else 2106 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2107 } else { 2108 wi->wi_atareq.retsts = ATACMD_OK; 2109 if (wi->wi_atareq.flags & ATACMD_READREG) { 2110 wi->wi_atareq.head = ata_c.r_head ; 2111 wi->wi_atareq.cylinder = ata_c.r_cyl; 2112 wi->wi_atareq.sec_num = ata_c.r_sector; 2113 wi->wi_atareq.sec_count = ata_c.r_count; 2114 wi->wi_atareq.features = ata_c.r_features; 2115 wi->wi_atareq.error = ata_c.r_error; 2116 } 2117 } 2118 2119 done: 2120 bp->b_error = error; 2121 biodone(bp); 2122 } 2123
Indexes created Mon Sep 29 18:09:42 GMT 2025