wd.c revision 1.365
1 /* $NetBSD: wd.c,v 1.365 2008/12/13 19:38:20 christos 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 * 48 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 49 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 50 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 51 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 52 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 53 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 54 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 55 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 56 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 57 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 58 * POSSIBILITY OF SUCH DAMAGE. 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.365 2008/12/13 19:38:20 christos Exp $"); 63 64 #include "opt_ata.h" 65 66 #include "rnd.h" 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/kernel.h> 71 #include <sys/conf.h> 72 #include <sys/file.h> 73 #include <sys/stat.h> 74 #include <sys/ioctl.h> 75 #include <sys/buf.h> 76 #include <sys/bufq.h> 77 #include <sys/uio.h> 78 #include <sys/malloc.h> 79 #include <sys/device.h> 80 #include <sys/disklabel.h> 81 #include <sys/disk.h> 82 #include <sys/syslog.h> 83 #include <sys/proc.h> 84 #include <sys/reboot.h> 85 #include <sys/vnode.h> 86 #if NRND > 0 87 #include <sys/rnd.h> 88 #endif 89 90 #include <sys/intr.h> 91 #include <sys/bus.h> 92 93 #include <dev/ata/atareg.h> 94 #include <dev/ata/atavar.h> 95 #include <dev/ata/wdvar.h> 96 #include <dev/ic/wdcreg.h> 97 #include <sys/ataio.h> 98 #include "locators.h" 99 100 #include <prop/proplib.h> 101 102 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 103 104 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 105 #define WDIORETRIES 5 /* number of retries before giving up */ 106 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 107 108 #define WDUNIT(dev) DISKUNIT(dev) 109 #define WDPART(dev) DISKPART(dev) 110 #define WDMINOR(unit, part) DISKMINOR(unit, part) 111 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 112 113 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 114 115 #define DEBUG_INTR 0x01 116 #define DEBUG_XFERS 0x02 117 #define DEBUG_STATUS 0x04 118 #define DEBUG_FUNCS 0x08 119 #define DEBUG_PROBE 0x10 120 #ifdef ATADEBUG 121 int wdcdebug_wd_mask = 0x0; 122 #define ATADEBUG_PRINT(args, level) \ 123 if (wdcdebug_wd_mask & (level)) \ 124 printf args 125 #else 126 #define ATADEBUG_PRINT(args, level) 127 #endif 128 129 int wdprobe(struct device *, struct cfdata *, void *); 130 void wdattach(struct device *, struct device *, void *); 131 int wddetach(struct device *, int); 132 int wdactivate(struct device *, enum devact); 133 int wdprint(void *, char *); 134 void wdperror(const struct wd_softc *); 135 136 static bool wd_suspend(device_t PMF_FN_PROTO); 137 static int wd_standby(struct wd_softc *, int); 138 139 CFATTACH_DECL_NEW(wd, sizeof(struct wd_softc), 140 wdprobe, wdattach, wddetach, wdactivate); 141 142 extern struct cfdriver wd_cd; 143 144 dev_type_open(wdopen); 145 dev_type_close(wdclose); 146 dev_type_read(wdread); 147 dev_type_write(wdwrite); 148 dev_type_ioctl(wdioctl); 149 dev_type_strategy(wdstrategy); 150 dev_type_dump(wddump); 151 dev_type_size(wdsize); 152 153 const struct bdevsw wd_bdevsw = { 154 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 155 }; 156 157 const struct cdevsw wd_cdevsw = { 158 wdopen, wdclose, wdread, wdwrite, wdioctl, 159 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 160 }; 161 162 /* 163 * Glue necessary to hook WDCIOCCOMMAND into physio 164 */ 165 166 struct wd_ioctl { 167 LIST_ENTRY(wd_ioctl) wi_list; 168 struct buf wi_bp; 169 struct uio wi_uio; 170 struct iovec wi_iov; 171 atareq_t wi_atareq; 172 struct wd_softc *wi_softc; 173 }; 174 175 LIST_HEAD(, wd_ioctl) wi_head; 176 177 struct wd_ioctl *wi_find(struct buf *); 178 void wi_free(struct wd_ioctl *); 179 struct wd_ioctl *wi_get(void); 180 void wdioctlstrategy(struct buf *); 181 182 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 183 void wdgetdisklabel(struct wd_softc *); 184 void wdstart(void *); 185 void __wdstart(struct wd_softc*, struct buf *); 186 void wdrestart(void *); 187 void wddone(void *); 188 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 189 int wd_flushcache(struct wd_softc *, int); 190 bool wd_shutdown(device_t, int); 191 192 int wd_getcache(struct wd_softc *, int *); 193 int wd_setcache(struct wd_softc *, int); 194 195 struct dkdriver wddkdriver = { wdstrategy, minphys }; 196 197 #ifdef HAS_BAD144_HANDLING 198 static void bad144intern(struct wd_softc *); 199 #endif 200 201 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 202 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 203 204 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 205 206 /* 207 * Quirk table for IDE drives. Put more-specific matches first, since 208 * a simple globbing routine is used for matching. 209 */ 210 static const struct wd_quirk { 211 const char *wdq_match; /* inquiry pattern to match */ 212 int wdq_quirks; /* drive quirks */ 213 } wd_quirk_table[] = { 214 /* 215 * Some Seagate S-ATA drives have a PHY which can get confused 216 * with the way data is packetized by some S-ATA controllers. 217 * 218 * The work-around is to split in two any write transfer whose 219 * sector count % 15 == 1 (assuming 512 byte sectors). 220 * 221 * XXX This is an incomplete list. There are at least a couple 222 * XXX more model numbers. If you have trouble with such transfers 223 * XXX (8K is the most common) on Seagate S-ATA drives, please 224 * XXX notify thorpej (at) NetBSD.org. 225 */ 226 { "ST3120023AS", 227 WD_QUIRK_SPLIT_MOD15_WRITE }, 228 { "ST380023AS", 229 WD_QUIRK_SPLIT_MOD15_WRITE }, 230 231 /* 232 * These seagate drives seems to have issue addressing sector 0xfffffff 233 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 234 * LBA48 235 * Note that we can't just change the code to always use LBA48 for 236 * sector 0xfffffff, because this would break valid and working 237 * setups using LBA48 drives on non-LBA48-capable controllers 238 * (and it's hard to get a list of such controllers) 239 */ 240 { "ST3160021A*", 241 WD_QUIRK_FORCE_LBA48 }, 242 { "ST3160811A*", 243 WD_QUIRK_FORCE_LBA48 }, 244 { "ST3160812A*", 245 WD_QUIRK_FORCE_LBA48 }, 246 { "ST3160023A*", 247 WD_QUIRK_FORCE_LBA48 }, 248 { "ST3160827A*", 249 WD_QUIRK_FORCE_LBA48 }, 250 /* Attempt to catch all seagate drives larger than 200GB */ 251 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 252 WD_QUIRK_FORCE_LBA48 }, 253 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 254 WD_QUIRK_FORCE_LBA48 }, 255 { NULL, 256 0 } 257 }; 258 259 static const struct wd_quirk * 260 wd_lookup_quirks(const char *name) 261 { 262 const struct wd_quirk *wdq; 263 const char *estr; 264 265 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 266 /* 267 * We only want exact matches (which include matches 268 * against globbing characters). 269 */ 270 if (pmatch(name, wdq->wdq_match, &estr) == 2) 271 return (wdq); 272 } 273 return (NULL); 274 } 275 276 int 277 wdprobe(struct device *parent, struct cfdata *match, void *aux) 278 { 279 struct ata_device *adev = aux; 280 281 if (adev == NULL) 282 return 0; 283 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 284 return 0; 285 286 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 287 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 288 return 0; 289 return 1; 290 } 291 292 void 293 wdattach(struct device *parent, struct device *self, void *aux) 294 { 295 struct wd_softc *wd = device_private(self); 296 struct ata_device *adev= aux; 297 int i, blank; 298 char tbuf[41], pbuf[9], c, *p, *q; 299 const struct wd_quirk *wdq; 300 301 wd->sc_dev = self; 302 303 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 304 callout_init(&wd->sc_restart_ch, 0); 305 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 306 #ifdef WD_SOFTBADSECT 307 SLIST_INIT(&wd->sc_bslist); 308 #endif 309 wd->atabus = adev->adev_bustype; 310 wd->openings = adev->adev_openings; 311 wd->drvp = adev->adev_drv_data; 312 313 wd->drvp->drv_done = wddone; 314 wd->drvp->drv_softc = wd->sc_dev; 315 316 aprint_naive("\n"); 317 318 /* read our drive info */ 319 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 320 aprint_error("\n%s: IDENTIFY failed\n", device_xname(self)); 321 return; 322 } 323 324 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 325 i < sizeof(wd->sc_params.atap_model); i++) { 326 c = *p++; 327 if (c == '\0') 328 break; 329 if (c != ' ') { 330 if (blank) { 331 *q++ = ' '; 332 blank = 0; 333 } 334 *q++ = c; 335 } else 336 blank = 1; 337 } 338 *q++ = '\0'; 339 340 aprint_normal(": <%s>\n", tbuf); 341 342 wdq = wd_lookup_quirks(tbuf); 343 if (wdq != NULL) 344 wd->sc_quirks = wdq->wdq_quirks; 345 346 if (wd->sc_quirks != 0) { 347 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 348 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 349 sbuf, sizeof(sbuf)); 350 aprint_normal_dev(self, "quirks %s\n", sbuf); 351 } 352 353 if ((wd->sc_params.atap_multi & 0xff) > 1) { 354 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 355 } else { 356 wd->sc_multi = 1; 357 } 358 359 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 360 wd->sc_multi); 361 362 /* 48-bit LBA addressing */ 363 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 364 wd->sc_flags |= WDF_LBA48; 365 366 /* Prior to ATA-4, LBA was optional. */ 367 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 368 wd->sc_flags |= WDF_LBA; 369 #if 0 370 /* ATA-4 requires LBA. */ 371 if (wd->sc_params.atap_ataversion != 0xffff && 372 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 373 wd->sc_flags |= WDF_LBA; 374 #endif 375 376 if ((wd->sc_flags & WDF_LBA48) != 0) { 377 aprint_verbose(" LBA48 addressing\n"); 378 wd->sc_capacity = 379 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 380 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 381 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 382 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 383 } else if ((wd->sc_flags & WDF_LBA) != 0) { 384 aprint_verbose(" LBA addressing\n"); 385 wd->sc_capacity = 386 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 387 wd->sc_params.atap_capacity[0]; 388 } else { 389 aprint_verbose(" chs addressing\n"); 390 wd->sc_capacity = 391 wd->sc_params.atap_cylinders * 392 wd->sc_params.atap_heads * 393 wd->sc_params.atap_sectors; 394 } 395 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 396 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 397 "%d bytes/sect x %llu sectors\n", 398 pbuf, 399 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 400 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 401 wd->sc_params.atap_cylinders, 402 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 403 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 404 405 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 406 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 407 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 408 /* 409 * Initialize and attach the disk structure. 410 */ 411 /* we fill in dk_info later */ 412 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 413 disk_attach(&wd->sc_dk); 414 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 415 #if NRND > 0 416 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 417 RND_TYPE_DISK, 0); 418 #endif 419 420 /* Discover wedges on this disk. */ 421 dkwedge_discover(&wd->sc_dk); 422 423 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 424 aprint_error_dev(self, "couldn't establish power handler\n"); 425 } 426 427 static bool 428 wd_suspend(device_t dv PMF_FN_ARGS) 429 { 430 struct wd_softc *sc = device_private(dv); 431 432 wd_flushcache(sc, AT_WAIT); 433 wd_standby(sc, AT_WAIT); 434 return true; 435 } 436 437 int 438 wdactivate(struct device *self, enum devact act) 439 { 440 int rv = 0; 441 442 switch (act) { 443 case DVACT_ACTIVATE: 444 rv = EOPNOTSUPP; 445 break; 446 447 case DVACT_DEACTIVATE: 448 /* 449 * Nothing to do; we key off the device's DVF_ACTIVATE. 450 */ 451 break; 452 } 453 return (rv); 454 } 455 456 int 457 wddetach(struct device *self, int flags) 458 { 459 struct wd_softc *sc = device_private(self); 460 int s, bmaj, cmaj, i, mn; 461 462 /* locate the major number */ 463 bmaj = bdevsw_lookup_major(&wd_bdevsw); 464 cmaj = cdevsw_lookup_major(&wd_cdevsw); 465 466 /* Nuke the vnodes for any open instances. */ 467 for (i = 0; i < MAXPARTITIONS; i++) { 468 mn = WDMINOR(device_unit(self), i); 469 vdevgone(bmaj, mn, mn, VBLK); 470 vdevgone(cmaj, mn, mn, VCHR); 471 } 472 473 /* Delete all of our wedges. */ 474 dkwedge_delall(&sc->sc_dk); 475 476 s = splbio(); 477 478 /* Kill off any queued buffers. */ 479 bufq_drain(sc->sc_q); 480 481 bufq_free(sc->sc_q); 482 sc->atabus->ata_killpending(sc->drvp); 483 484 splx(s); 485 486 /* Detach disk. */ 487 disk_detach(&sc->sc_dk); 488 disk_destroy(&sc->sc_dk); 489 490 #ifdef WD_SOFTBADSECT 491 /* Clean out the bad sector list */ 492 while (!SLIST_EMPTY(&sc->sc_bslist)) { 493 void *head = SLIST_FIRST(&sc->sc_bslist); 494 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 495 free(head, M_TEMP); 496 } 497 sc->sc_bscount = 0; 498 #endif 499 500 pmf_device_deregister(self); 501 502 #if NRND > 0 503 /* Unhook the entropy source. */ 504 rnd_detach_source(&sc->rnd_source); 505 #endif 506 507 callout_destroy(&sc->sc_restart_ch); 508 509 sc->drvp->drive_flags = 0; /* no drive any more here */ 510 511 return (0); 512 } 513 514 /* 515 * Read/write routine for a buffer. Validates the arguments and schedules the 516 * transfer. Does not wait for the transfer to complete. 517 */ 518 void 519 wdstrategy(struct buf *bp) 520 { 521 struct wd_softc *wd = 522 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 523 struct disklabel *lp = wd->sc_dk.dk_label; 524 daddr_t blkno; 525 int s; 526 527 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 528 DEBUG_XFERS); 529 530 /* Valid request? */ 531 if (bp->b_blkno < 0 || 532 (bp->b_bcount % lp->d_secsize) != 0 || 533 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 534 bp->b_error = EINVAL; 535 goto done; 536 } 537 538 /* If device invalidated (e.g. media change, door open), error. */ 539 if ((wd->sc_flags & WDF_LOADED) == 0) { 540 bp->b_error = EIO; 541 goto done; 542 } 543 544 /* If it's a null transfer, return immediately. */ 545 if (bp->b_bcount == 0) 546 goto done; 547 548 /* 549 * Do bounds checking, adjust transfer. if error, process. 550 * If end of partition, just return. 551 */ 552 if (WDPART(bp->b_dev) == RAW_PART) { 553 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 554 wd->sc_capacity) <= 0) 555 goto done; 556 } else { 557 if (bounds_check_with_label(&wd->sc_dk, bp, 558 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 559 goto done; 560 } 561 562 /* 563 * Now convert the block number to absolute and put it in 564 * terms of the device's logical block size. 565 */ 566 if (lp->d_secsize >= DEV_BSIZE) 567 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 568 else 569 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 570 571 if (WDPART(bp->b_dev) != RAW_PART) 572 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 573 574 bp->b_rawblkno = blkno; 575 576 #ifdef WD_SOFTBADSECT 577 /* 578 * If the transfer about to be attempted contains only a block that 579 * is known to be bad then return an error for the transfer without 580 * even attempting to start a transfer up under the premis that we 581 * will just end up doing more retries for a transfer that will end 582 * up failing again. 583 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 584 */ 585 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 586 struct disk_badsectors *dbs; 587 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 588 589 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 590 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 591 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 592 bp->b_error = EIO; 593 goto done; 594 } 595 } 596 #endif 597 598 /* Queue transfer on drive, activate drive and controller if idle. */ 599 s = splbio(); 600 BUFQ_PUT(wd->sc_q, bp); 601 wdstart(wd); 602 splx(s); 603 return; 604 done: 605 /* Toss transfer; we're done early. */ 606 bp->b_resid = bp->b_bcount; 607 biodone(bp); 608 } 609 610 /* 611 * Queue a drive for I/O. 612 */ 613 void 614 wdstart(void *arg) 615 { 616 struct wd_softc *wd = arg; 617 struct buf *bp = NULL; 618 619 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 620 DEBUG_XFERS); 621 while (wd->openings > 0) { 622 623 /* Is there a buf for us ? */ 624 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 625 return; 626 627 /* 628 * Make the command. First lock the device 629 */ 630 wd->openings--; 631 632 wd->retries = 0; 633 __wdstart(wd, bp); 634 } 635 } 636 637 static void 638 wd_split_mod15_write(struct buf *bp) 639 { 640 struct buf *obp = bp->b_private; 641 struct wd_softc *sc = 642 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 643 644 if (__predict_false(bp->b_error != 0)) { 645 /* 646 * Propagate the error. If this was the first half of 647 * the original transfer, make sure to account for that 648 * in the residual. 649 */ 650 if (bp->b_data == obp->b_data) 651 bp->b_resid += bp->b_bcount; 652 goto done; 653 } 654 655 /* 656 * If this was the second half of the transfer, we're all done! 657 */ 658 if (bp->b_data != obp->b_data) 659 goto done; 660 661 /* 662 * Advance the pointer to the second half and issue that command 663 * using the same opening. 664 */ 665 bp->b_flags = obp->b_flags; 666 bp->b_oflags = obp->b_oflags; 667 bp->b_cflags = obp->b_cflags; 668 bp->b_data = (char *)bp->b_data + bp->b_bcount; 669 bp->b_blkno += (bp->b_bcount / 512); 670 bp->b_rawblkno += (bp->b_bcount / 512); 671 __wdstart(sc, bp); 672 return; 673 674 done: 675 obp->b_error = bp->b_error; 676 obp->b_resid = bp->b_resid; 677 putiobuf(bp); 678 biodone(obp); 679 sc->openings++; 680 /* wddone() will call wdstart() */ 681 } 682 683 void 684 __wdstart(struct wd_softc *wd, struct buf *bp) 685 { 686 687 /* 688 * Deal with the "split mod15 write" quirk. We just divide the 689 * transfer in two, doing the first half and then then second half 690 * with the same command opening. 691 * 692 * Note we MUST do this here, because we can't let insertion 693 * into the bufq cause the transfers to be re-merged. 694 */ 695 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 696 (bp->b_flags & B_READ) == 0 && 697 bp->b_bcount > 512 && 698 ((bp->b_bcount / 512) % 15) == 1)) { 699 struct buf *nbp; 700 701 /* already at splbio */ 702 nbp = getiobuf(NULL, false); 703 if (__predict_false(nbp == NULL)) { 704 /* No memory -- fail the iop. */ 705 bp->b_error = ENOMEM; 706 bp->b_resid = bp->b_bcount; 707 biodone(bp); 708 wd->openings++; 709 return; 710 } 711 712 nbp->b_error = 0; 713 nbp->b_proc = bp->b_proc; 714 nbp->b_dev = bp->b_dev; 715 716 nbp->b_bcount = bp->b_bcount / 2; 717 nbp->b_bufsize = bp->b_bcount / 2; 718 nbp->b_data = bp->b_data; 719 720 nbp->b_blkno = bp->b_blkno; 721 nbp->b_rawblkno = bp->b_rawblkno; 722 723 nbp->b_flags = bp->b_flags; 724 nbp->b_oflags = bp->b_oflags; 725 nbp->b_cflags = bp->b_cflags; 726 nbp->b_iodone = wd_split_mod15_write; 727 728 /* Put ptr to orig buf in b_private and use new buf */ 729 nbp->b_private = bp; 730 731 BIO_COPYPRIO(nbp, bp); 732 733 bp = nbp; 734 } 735 736 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 737 wd->sc_wdc_bio.blkdone =0; 738 wd->sc_bp = bp; 739 /* 740 * If we're retrying, retry in single-sector mode. This will give us 741 * the sector number of the problem, and will eventually allow the 742 * transfer to succeed. 743 */ 744 if (wd->retries >= WDIORETRIES_SINGLE) 745 wd->sc_wdc_bio.flags = ATA_SINGLE; 746 else 747 wd->sc_wdc_bio.flags = 0; 748 if (wd->sc_flags & WDF_LBA48 && 749 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 750 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 751 wd->sc_wdc_bio.flags |= ATA_LBA48; 752 if (wd->sc_flags & WDF_LBA) 753 wd->sc_wdc_bio.flags |= ATA_LBA; 754 if (bp->b_flags & B_READ) 755 wd->sc_wdc_bio.flags |= ATA_READ; 756 wd->sc_wdc_bio.bcount = bp->b_bcount; 757 wd->sc_wdc_bio.databuf = bp->b_data; 758 /* Instrumentation. */ 759 disk_busy(&wd->sc_dk); 760 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 761 case ATACMD_TRY_AGAIN: 762 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 763 break; 764 case ATACMD_QUEUED: 765 case ATACMD_COMPLETE: 766 break; 767 default: 768 panic("__wdstart: bad return code from ata_bio()"); 769 } 770 } 771 772 void 773 wddone(void *v) 774 { 775 struct wd_softc *wd = device_private(v); 776 struct buf *bp = wd->sc_bp; 777 const char *errmsg; 778 int do_perror = 0; 779 int nblks; 780 781 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 782 DEBUG_XFERS); 783 if (bp == NULL) 784 return; 785 bp->b_resid = wd->sc_wdc_bio.bcount; 786 switch (wd->sc_wdc_bio.error) { 787 case ERR_DMA: 788 errmsg = "DMA error"; 789 goto retry; 790 case ERR_DF: 791 errmsg = "device fault"; 792 goto retry; 793 case TIMEOUT: 794 errmsg = "device timeout"; 795 goto retry; 796 case ERR_RESET: 797 errmsg = "channel reset"; 798 goto retry2; 799 case ERROR: 800 /* Don't care about media change bits */ 801 if (wd->sc_wdc_bio.r_error != 0 && 802 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 803 goto noerror; 804 errmsg = "error"; 805 do_perror = 1; 806 if ((wd->sc_wdc_bio.r_error & (WDCE_IDNF | WDCE_ABRT)) && 807 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 808 nblks = wd->sc_wdc_bio.bcount / 809 wd->sc_dk.dk_label->d_secsize; 810 /* 811 * If we get a "id not found" when crossing the 812 * LBA48_THRESHOLD, and the drive is larger than 813 * 128GB, then we can assume the drive has the 814 * LBA48 bug and we switch to LBA48. 815 */ 816 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 817 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 818 wd->sc_capacity > LBA48_THRESHOLD + 1) { 819 errmsg = "LBA48 bug"; 820 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 821 do_perror = 0; 822 goto retry2; 823 } 824 } 825 retry: /* Just reset and retry. Can we do more ? */ 826 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 827 retry2: 828 diskerr(bp, "wd", errmsg, LOG_PRINTF, 829 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 830 if (wd->retries < WDIORETRIES) 831 printf(", retrying"); 832 printf("\n"); 833 if (do_perror) 834 wdperror(wd); 835 if (wd->retries < WDIORETRIES) { 836 wd->retries++; 837 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 838 wdrestart, wd); 839 return; 840 } 841 842 #ifdef WD_SOFTBADSECT 843 /* 844 * Not all errors indicate a failed block but those that do, 845 * put the block on the bad-block list for the device. Only 846 * do this for reads because the drive should do it for writes, 847 * itself, according to Manuel. 848 */ 849 if ((bp->b_flags & B_READ) && 850 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 851 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 852 struct disk_badsectors *dbs; 853 854 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 855 dbs->dbs_min = bp->b_rawblkno; 856 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 857 microtime(&dbs->dbs_failedat); 858 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 859 wd->sc_bscount++; 860 } 861 #endif 862 bp->b_error = EIO; 863 break; 864 case NOERROR: 865 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 866 aprint_error_dev(wd->sc_dev, 867 "soft error (corrected)\n"); 868 break; 869 case ERR_NODEV: 870 bp->b_error = EIO; 871 break; 872 } 873 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 874 (bp->b_flags & B_READ)); 875 #if NRND > 0 876 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 877 #endif 878 /* XXX Yuck, but we don't want to increment openings in this case */ 879 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 880 biodone(bp); 881 else { 882 biodone(bp); 883 wd->openings++; 884 } 885 wdstart(wd); 886 } 887 888 void 889 wdrestart(void *v) 890 { 891 struct wd_softc *wd = v; 892 struct buf *bp = wd->sc_bp; 893 int s; 894 895 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 896 DEBUG_XFERS); 897 s = splbio(); 898 __wdstart(v, bp); 899 splx(s); 900 } 901 902 int 903 wdread(dev_t dev, struct uio *uio, int flags) 904 { 905 906 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 907 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 908 } 909 910 int 911 wdwrite(dev_t dev, struct uio *uio, int flags) 912 { 913 914 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 915 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 916 } 917 918 int 919 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 920 { 921 struct wd_softc *wd; 922 int part, error; 923 924 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 925 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 926 if (wd == NULL) 927 return (ENXIO); 928 929 if (! device_is_active(wd->sc_dev)) 930 return (ENODEV); 931 932 part = WDPART(dev); 933 934 mutex_enter(&wd->sc_dk.dk_openlock); 935 936 /* 937 * If there are wedges, and this is not RAW_PART, then we 938 * need to fail. 939 */ 940 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 941 error = EBUSY; 942 goto bad1; 943 } 944 945 /* 946 * If this is the first open of this device, add a reference 947 * to the adapter. 948 */ 949 if (wd->sc_dk.dk_openmask == 0 && 950 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 951 goto bad1; 952 953 if (wd->sc_dk.dk_openmask != 0) { 954 /* 955 * If any partition is open, but the disk has been invalidated, 956 * disallow further opens. 957 */ 958 if ((wd->sc_flags & WDF_LOADED) == 0) { 959 error = EIO; 960 goto bad2; 961 } 962 } else { 963 if ((wd->sc_flags & WDF_LOADED) == 0) { 964 wd->sc_flags |= WDF_LOADED; 965 966 /* Load the physical device parameters. */ 967 wd_get_params(wd, AT_WAIT, &wd->sc_params); 968 969 /* Load the partition info if not already loaded. */ 970 wdgetdisklabel(wd); 971 } 972 } 973 974 /* Check that the partition exists. */ 975 if (part != RAW_PART && 976 (part >= wd->sc_dk.dk_label->d_npartitions || 977 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 978 error = ENXIO; 979 goto bad2; 980 } 981 982 /* Insure only one open at a time. */ 983 switch (fmt) { 984 case S_IFCHR: 985 wd->sc_dk.dk_copenmask |= (1 << part); 986 break; 987 case S_IFBLK: 988 wd->sc_dk.dk_bopenmask |= (1 << part); 989 break; 990 } 991 wd->sc_dk.dk_openmask = 992 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 993 994 mutex_exit(&wd->sc_dk.dk_openlock); 995 return 0; 996 997 bad2: 998 if (wd->sc_dk.dk_openmask == 0) 999 wd->atabus->ata_delref(wd->drvp); 1000 bad1: 1001 mutex_exit(&wd->sc_dk.dk_openlock); 1002 return error; 1003 } 1004 1005 int 1006 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1007 { 1008 struct wd_softc *wd = 1009 device_lookup_private(&wd_cd, WDUNIT(dev)); 1010 int part = WDPART(dev); 1011 1012 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1013 1014 mutex_enter(&wd->sc_dk.dk_openlock); 1015 1016 switch (fmt) { 1017 case S_IFCHR: 1018 wd->sc_dk.dk_copenmask &= ~(1 << part); 1019 break; 1020 case S_IFBLK: 1021 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1022 break; 1023 } 1024 wd->sc_dk.dk_openmask = 1025 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1026 1027 if (wd->sc_dk.dk_openmask == 0) { 1028 wd_flushcache(wd, AT_WAIT); 1029 1030 if (! (wd->sc_flags & WDF_KLABEL)) 1031 wd->sc_flags &= ~WDF_LOADED; 1032 1033 wd->atabus->ata_delref(wd->drvp); 1034 } 1035 1036 mutex_exit(&wd->sc_dk.dk_openlock); 1037 return 0; 1038 } 1039 1040 void 1041 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1042 { 1043 1044 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1045 memset(lp, 0, sizeof(struct disklabel)); 1046 1047 lp->d_secsize = DEV_BSIZE; 1048 lp->d_ntracks = wd->sc_params.atap_heads; 1049 lp->d_nsectors = wd->sc_params.atap_sectors; 1050 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1051 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1052 wd->sc_params.atap_cylinders; 1053 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1054 1055 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1056 lp->d_type = DTYPE_ST506; 1057 else 1058 lp->d_type = DTYPE_ESDI; 1059 1060 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1061 strncpy(lp->d_packname, "fictitious", 16); 1062 if (wd->sc_capacity > UINT32_MAX) 1063 lp->d_secperunit = UINT32_MAX; 1064 else 1065 lp->d_secperunit = wd->sc_capacity; 1066 lp->d_rpm = 3600; 1067 lp->d_interleave = 1; 1068 lp->d_flags = 0; 1069 1070 lp->d_partitions[RAW_PART].p_offset = 0; 1071 lp->d_partitions[RAW_PART].p_size = 1072 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1073 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1074 lp->d_npartitions = RAW_PART + 1; 1075 1076 lp->d_magic = DISKMAGIC; 1077 lp->d_magic2 = DISKMAGIC; 1078 lp->d_checksum = dkcksum(lp); 1079 } 1080 1081 /* 1082 * Fabricate a default disk label, and try to read the correct one. 1083 */ 1084 void 1085 wdgetdisklabel(struct wd_softc *wd) 1086 { 1087 struct disklabel *lp = wd->sc_dk.dk_label; 1088 const char *errstring; 1089 int s; 1090 1091 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1092 1093 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1094 1095 wdgetdefaultlabel(wd, lp); 1096 1097 wd->sc_badsect[0] = -1; 1098 1099 if (wd->drvp->state > RESET) { 1100 s = splbio(); 1101 wd->drvp->drive_flags |= DRIVE_RESET; 1102 splx(s); 1103 } 1104 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1105 RAW_PART), wdstrategy, lp, 1106 wd->sc_dk.dk_cpulabel); 1107 if (errstring) { 1108 /* 1109 * This probably happened because the drive's default 1110 * geometry doesn't match the DOS geometry. We 1111 * assume the DOS geometry is now in the label and try 1112 * again. XXX This is a kluge. 1113 */ 1114 if (wd->drvp->state > RESET) { 1115 s = splbio(); 1116 wd->drvp->drive_flags |= DRIVE_RESET; 1117 splx(s); 1118 } 1119 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1120 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1121 } 1122 if (errstring) { 1123 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1124 return; 1125 } 1126 1127 if (wd->drvp->state > RESET) { 1128 s = splbio(); 1129 wd->drvp->drive_flags |= DRIVE_RESET; 1130 splx(s); 1131 } 1132 #ifdef HAS_BAD144_HANDLING 1133 if ((lp->d_flags & D_BADSECT) != 0) 1134 bad144intern(wd); 1135 #endif 1136 } 1137 1138 void 1139 wdperror(const struct wd_softc *wd) 1140 { 1141 static const char *const errstr0_3[] = {"address mark not found", 1142 "track 0 not found", "aborted command", "media change requested", 1143 "id not found", "media changed", "uncorrectable data error", 1144 "bad block detected"}; 1145 static const char *const errstr4_5[] = { 1146 "obsolete (address mark not found)", 1147 "no media/write protected", "aborted command", 1148 "media change requested", "id not found", "media changed", 1149 "uncorrectable data error", "interface CRC error"}; 1150 const char *const *errstr; 1151 int i; 1152 const char *sep = ""; 1153 1154 const char *devname = device_xname(wd->sc_dev); 1155 struct ata_drive_datas *drvp = wd->drvp; 1156 int errno = wd->sc_wdc_bio.r_error; 1157 1158 if (drvp->ata_vers >= 4) 1159 errstr = errstr4_5; 1160 else 1161 errstr = errstr0_3; 1162 1163 printf("%s: (", devname); 1164 1165 if (errno == 0) 1166 printf("error not notified"); 1167 1168 for (i = 0; i < 8; i++) { 1169 if (errno & (1 << i)) { 1170 printf("%s%s", sep, errstr[i]); 1171 sep = ", "; 1172 } 1173 } 1174 printf(")\n"); 1175 } 1176 1177 int 1178 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1179 { 1180 struct wd_softc *wd = 1181 device_lookup_private(&wd_cd, WDUNIT(dev)); 1182 int error = 0, s; 1183 #ifdef __HAVE_OLD_DISKLABEL 1184 struct disklabel *newlabel = NULL; 1185 #endif 1186 1187 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1188 1189 if ((wd->sc_flags & WDF_LOADED) == 0) 1190 return EIO; 1191 1192 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1193 if (error != EPASSTHROUGH) 1194 return (error); 1195 1196 switch (xfer) { 1197 #ifdef HAS_BAD144_HANDLING 1198 case DIOCSBAD: 1199 if ((flag & FWRITE) == 0) 1200 return EBADF; 1201 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1202 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1203 bad144intern(wd); 1204 return 0; 1205 #endif 1206 #ifdef WD_SOFTBADSECT 1207 case DIOCBSLIST : 1208 { 1209 u_int32_t count, missing, skip; 1210 struct disk_badsecinfo dbsi; 1211 struct disk_badsectors *dbs; 1212 size_t available; 1213 uint8_t *laddr; 1214 1215 dbsi = *(struct disk_badsecinfo *)addr; 1216 missing = wd->sc_bscount; 1217 count = 0; 1218 available = dbsi.dbsi_bufsize; 1219 skip = dbsi.dbsi_skip; 1220 laddr = (uint8_t *)dbsi.dbsi_buffer; 1221 1222 /* 1223 * We start this loop with the expectation that all of the 1224 * entries will be missed and decrement this counter each 1225 * time we either skip over one (already copied out) or 1226 * we actually copy it back to user space. The structs 1227 * holding the bad sector information are copied directly 1228 * back to user space whilst the summary is returned via 1229 * the struct passed in via the ioctl. 1230 */ 1231 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1232 if (skip > 0) { 1233 missing--; 1234 skip--; 1235 continue; 1236 } 1237 if (available < sizeof(*dbs)) 1238 break; 1239 available -= sizeof(*dbs); 1240 copyout(dbs, laddr, sizeof(*dbs)); 1241 laddr += sizeof(*dbs); 1242 missing--; 1243 count++; 1244 } 1245 dbsi.dbsi_left = missing; 1246 dbsi.dbsi_copied = count; 1247 *(struct disk_badsecinfo *)addr = dbsi; 1248 return 0; 1249 } 1250 1251 case DIOCBSFLUSH : 1252 /* Clean out the bad sector list */ 1253 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1254 void *head = SLIST_FIRST(&wd->sc_bslist); 1255 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1256 free(head, M_TEMP); 1257 } 1258 wd->sc_bscount = 0; 1259 return 0; 1260 #endif 1261 case DIOCGDINFO: 1262 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1263 return 0; 1264 #ifdef __HAVE_OLD_DISKLABEL 1265 case ODIOCGDINFO: 1266 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1267 if (newlabel == NULL) 1268 return EIO; 1269 *newlabel = *(wd->sc_dk.dk_label); 1270 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1271 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1272 else 1273 error = ENOTTY; 1274 free(newlabel, M_TEMP); 1275 return error; 1276 #endif 1277 1278 case DIOCGPART: 1279 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1280 ((struct partinfo *)addr)->part = 1281 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1282 return 0; 1283 1284 case DIOCWDINFO: 1285 case DIOCSDINFO: 1286 #ifdef __HAVE_OLD_DISKLABEL 1287 case ODIOCWDINFO: 1288 case ODIOCSDINFO: 1289 #endif 1290 { 1291 struct disklabel *lp; 1292 1293 if ((flag & FWRITE) == 0) 1294 return EBADF; 1295 1296 #ifdef __HAVE_OLD_DISKLABEL 1297 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1298 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1299 if (newlabel == NULL) 1300 return EIO; 1301 memset(newlabel, 0, sizeof newlabel); 1302 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1303 lp = newlabel; 1304 } else 1305 #endif 1306 lp = (struct disklabel *)addr; 1307 1308 mutex_enter(&wd->sc_dk.dk_openlock); 1309 wd->sc_flags |= WDF_LABELLING; 1310 1311 error = setdisklabel(wd->sc_dk.dk_label, 1312 lp, /*wd->sc_dk.dk_openmask : */0, 1313 wd->sc_dk.dk_cpulabel); 1314 if (error == 0) { 1315 if (wd->drvp->state > RESET) { 1316 s = splbio(); 1317 wd->drvp->drive_flags |= DRIVE_RESET; 1318 splx(s); 1319 } 1320 if (xfer == DIOCWDINFO 1321 #ifdef __HAVE_OLD_DISKLABEL 1322 || xfer == ODIOCWDINFO 1323 #endif 1324 ) 1325 error = writedisklabel(WDLABELDEV(dev), 1326 wdstrategy, wd->sc_dk.dk_label, 1327 wd->sc_dk.dk_cpulabel); 1328 } 1329 1330 wd->sc_flags &= ~WDF_LABELLING; 1331 mutex_exit(&wd->sc_dk.dk_openlock); 1332 #ifdef __HAVE_OLD_DISKLABEL 1333 if (newlabel != NULL) 1334 free(newlabel, M_TEMP); 1335 #endif 1336 return error; 1337 } 1338 1339 case DIOCKLABEL: 1340 if (*(int *)addr) 1341 wd->sc_flags |= WDF_KLABEL; 1342 else 1343 wd->sc_flags &= ~WDF_KLABEL; 1344 return 0; 1345 1346 case DIOCWLABEL: 1347 if ((flag & FWRITE) == 0) 1348 return EBADF; 1349 if (*(int *)addr) 1350 wd->sc_flags |= WDF_WLABEL; 1351 else 1352 wd->sc_flags &= ~WDF_WLABEL; 1353 return 0; 1354 1355 case DIOCGDEFLABEL: 1356 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1357 return 0; 1358 #ifdef __HAVE_OLD_DISKLABEL 1359 case ODIOCGDEFLABEL: 1360 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1361 if (newlabel == NULL) 1362 return EIO; 1363 wdgetdefaultlabel(wd, newlabel); 1364 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1365 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1366 else 1367 error = ENOTTY; 1368 free(newlabel, M_TEMP); 1369 return error; 1370 #endif 1371 1372 #ifdef notyet 1373 case DIOCWFORMAT: 1374 if ((flag & FWRITE) == 0) 1375 return EBADF; 1376 { 1377 register struct format_op *fop; 1378 struct iovec aiov; 1379 struct uio auio; 1380 1381 fop = (struct format_op *)addr; 1382 aiov.iov_base = fop->df_buf; 1383 aiov.iov_len = fop->df_count; 1384 auio.uio_iov = &aiov; 1385 auio.uio_iovcnt = 1; 1386 auio.uio_resid = fop->df_count; 1387 auio.uio_offset = 1388 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1389 auio.uio_vmspace = l->l_proc->p_vmspace; 1390 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1391 &auio); 1392 fop->df_count -= auio.uio_resid; 1393 fop->df_reg[0] = wdc->sc_status; 1394 fop->df_reg[1] = wdc->sc_error; 1395 return error; 1396 } 1397 #endif 1398 case DIOCGCACHE: 1399 return wd_getcache(wd, (int *)addr); 1400 1401 case DIOCSCACHE: 1402 return wd_setcache(wd, *(int *)addr); 1403 1404 case DIOCCACHESYNC: 1405 return wd_flushcache(wd, AT_WAIT); 1406 1407 case ATAIOCCOMMAND: 1408 /* 1409 * Make sure this command is (relatively) safe first 1410 */ 1411 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1412 (flag & FWRITE) == 0) 1413 return (EBADF); 1414 { 1415 struct wd_ioctl *wi; 1416 atareq_t *atareq = (atareq_t *) addr; 1417 int error1; 1418 1419 wi = wi_get(); 1420 wi->wi_softc = wd; 1421 wi->wi_atareq = *atareq; 1422 1423 if (atareq->datalen && atareq->flags & 1424 (ATACMD_READ | ATACMD_WRITE)) { 1425 void *tbuf; 1426 if (atareq->datalen < DEV_BSIZE 1427 && atareq->command == WDCC_IDENTIFY) { 1428 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1429 wi->wi_iov.iov_base = tbuf; 1430 wi->wi_iov.iov_len = DEV_BSIZE; 1431 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1432 } else { 1433 tbuf = NULL; 1434 wi->wi_iov.iov_base = atareq->databuf; 1435 wi->wi_iov.iov_len = atareq->datalen; 1436 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1437 } 1438 wi->wi_uio.uio_iov = &wi->wi_iov; 1439 wi->wi_uio.uio_iovcnt = 1; 1440 wi->wi_uio.uio_resid = atareq->datalen; 1441 wi->wi_uio.uio_offset = 0; 1442 wi->wi_uio.uio_rw = 1443 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1444 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1445 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1446 minphys, &wi->wi_uio); 1447 if (tbuf != NULL && error1 == 0) { 1448 error1 = copyout(tbuf, atareq->databuf, 1449 atareq->datalen); 1450 free(tbuf, M_TEMP); 1451 } 1452 } else { 1453 /* No need to call physio if we don't have any 1454 user data */ 1455 wi->wi_bp.b_flags = 0; 1456 wi->wi_bp.b_data = 0; 1457 wi->wi_bp.b_bcount = 0; 1458 wi->wi_bp.b_dev = 0; 1459 wi->wi_bp.b_proc = l->l_proc; 1460 wdioctlstrategy(&wi->wi_bp); 1461 error1 = wi->wi_bp.b_error; 1462 } 1463 *atareq = wi->wi_atareq; 1464 wi_free(wi); 1465 return(error1); 1466 } 1467 1468 case DIOCAWEDGE: 1469 { 1470 struct dkwedge_info *dkw = (void *) addr; 1471 1472 if ((flag & FWRITE) == 0) 1473 return (EBADF); 1474 1475 /* If the ioctl happens here, the parent is us. */ 1476 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1477 return (dkwedge_add(dkw)); 1478 } 1479 1480 case DIOCDWEDGE: 1481 { 1482 struct dkwedge_info *dkw = (void *) addr; 1483 1484 if ((flag & FWRITE) == 0) 1485 return (EBADF); 1486 1487 /* If the ioctl happens here, the parent is us. */ 1488 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1489 return (dkwedge_del(dkw)); 1490 } 1491 1492 case DIOCLWEDGES: 1493 { 1494 struct dkwedge_list *dkwl = (void *) addr; 1495 1496 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1497 } 1498 1499 case DIOCGSTRATEGY: 1500 { 1501 struct disk_strategy *dks = (void *)addr; 1502 1503 s = splbio(); 1504 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1505 sizeof(dks->dks_name)); 1506 splx(s); 1507 dks->dks_paramlen = 0; 1508 1509 return 0; 1510 } 1511 1512 case DIOCSSTRATEGY: 1513 { 1514 struct disk_strategy *dks = (void *)addr; 1515 struct bufq_state *new; 1516 struct bufq_state *old; 1517 1518 if ((flag & FWRITE) == 0) { 1519 return EBADF; 1520 } 1521 if (dks->dks_param != NULL) { 1522 return EINVAL; 1523 } 1524 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1525 error = bufq_alloc(&new, dks->dks_name, 1526 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1527 if (error) { 1528 return error; 1529 } 1530 s = splbio(); 1531 old = wd->sc_q; 1532 bufq_move(new, old); 1533 wd->sc_q = new; 1534 splx(s); 1535 bufq_free(old); 1536 1537 return 0; 1538 } 1539 1540 default: 1541 return ENOTTY; 1542 } 1543 1544 #ifdef DIAGNOSTIC 1545 panic("wdioctl: impossible"); 1546 #endif 1547 } 1548 1549 #ifdef B_FORMAT 1550 int 1551 wdformat(struct buf *bp) 1552 { 1553 1554 bp->b_flags |= B_FORMAT; 1555 return wdstrategy(bp); 1556 } 1557 #endif 1558 1559 int 1560 wdsize(dev_t dev) 1561 { 1562 struct wd_softc *wd; 1563 int part, omask; 1564 int size; 1565 1566 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1567 1568 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1569 if (wd == NULL) 1570 return (-1); 1571 1572 part = WDPART(dev); 1573 omask = wd->sc_dk.dk_openmask & (1 << part); 1574 1575 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1576 return (-1); 1577 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1578 size = -1; 1579 else 1580 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1581 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1582 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1583 return (-1); 1584 return (size); 1585 } 1586 1587 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1588 static int wddoingadump = 0; 1589 static int wddumprecalibrated = 0; 1590 1591 /* 1592 * Dump core after a system crash. 1593 */ 1594 int 1595 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1596 { 1597 struct wd_softc *wd; /* disk unit to do the I/O */ 1598 struct disklabel *lp; /* disk's disklabel */ 1599 int part, err; 1600 int nblks; /* total number of sectors left to write */ 1601 1602 /* Check if recursive dump; if so, punt. */ 1603 if (wddoingadump) 1604 return EFAULT; 1605 wddoingadump = 1; 1606 1607 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1608 if (wd == NULL) 1609 return (ENXIO); 1610 1611 part = WDPART(dev); 1612 1613 /* Convert to disk sectors. Request must be a multiple of size. */ 1614 lp = wd->sc_dk.dk_label; 1615 if ((size % lp->d_secsize) != 0) 1616 return EFAULT; 1617 nblks = size / lp->d_secsize; 1618 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1619 1620 /* Check transfer bounds against partition size. */ 1621 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1622 return EINVAL; 1623 1624 /* Offset block number to start of partition. */ 1625 blkno += lp->d_partitions[part].p_offset; 1626 1627 /* Recalibrate, if first dump transfer. */ 1628 if (wddumprecalibrated == 0) { 1629 wddumprecalibrated = 1; 1630 (*wd->atabus->ata_reset_drive)(wd->drvp, 1631 AT_POLL | AT_RST_EMERG); 1632 wd->drvp->state = RESET; 1633 } 1634 1635 wd->sc_bp = NULL; 1636 wd->sc_wdc_bio.blkno = blkno; 1637 wd->sc_wdc_bio.flags = ATA_POLL; 1638 if (wd->sc_flags & WDF_LBA48 && 1639 (blkno > LBA48_THRESHOLD || 1640 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1641 wd->sc_wdc_bio.flags |= ATA_LBA48; 1642 if (wd->sc_flags & WDF_LBA) 1643 wd->sc_wdc_bio.flags |= ATA_LBA; 1644 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1645 wd->sc_wdc_bio.databuf = va; 1646 #ifndef WD_DUMP_NOT_TRUSTED 1647 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1648 case ATACMD_TRY_AGAIN: 1649 panic("wddump: try again"); 1650 break; 1651 case ATACMD_QUEUED: 1652 panic("wddump: polled command has been queued"); 1653 break; 1654 case ATACMD_COMPLETE: 1655 break; 1656 default: 1657 panic("wddump: unknown atacmd code %d", err); 1658 } 1659 switch(err = wd->sc_wdc_bio.error) { 1660 case TIMEOUT: 1661 printf("wddump: device timed out"); 1662 err = EIO; 1663 break; 1664 case ERR_DF: 1665 printf("wddump: drive fault"); 1666 err = EIO; 1667 break; 1668 case ERR_DMA: 1669 printf("wddump: DMA error"); 1670 err = EIO; 1671 break; 1672 case ERROR: 1673 printf("wddump: "); 1674 wdperror(wd); 1675 err = EIO; 1676 break; 1677 case NOERROR: 1678 err = 0; 1679 break; 1680 default: 1681 panic("wddump: unknown error type %d", err); 1682 } 1683 if (err != 0) { 1684 printf("\n"); 1685 return err; 1686 } 1687 #else /* WD_DUMP_NOT_TRUSTED */ 1688 /* Let's just talk about this first... */ 1689 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1690 unit, va, cylin, head, sector); 1691 delay(500 * 1000); /* half a second */ 1692 #endif 1693 1694 wddoingadump = 0; 1695 return 0; 1696 } 1697 1698 #ifdef HAS_BAD144_HANDLING 1699 /* 1700 * Internalize the bad sector table. 1701 */ 1702 void 1703 bad144intern(struct wd_softc *wd) 1704 { 1705 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1706 struct disklabel *lp = wd->sc_dk.dk_label; 1707 int i = 0; 1708 1709 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1710 1711 for (; i < NBT_BAD; i++) { 1712 if (bt->bt_bad[i].bt_cyl == 0xffff) 1713 break; 1714 wd->sc_badsect[i] = 1715 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1716 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1717 (bt->bt_bad[i].bt_trksec & 0xff); 1718 } 1719 for (; i < NBT_BAD+1; i++) 1720 wd->sc_badsect[i] = -1; 1721 } 1722 #endif 1723 1724 static void 1725 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1726 { 1727 prop_dictionary_t disk_info, odisk_info, geom; 1728 const char *cp; 1729 1730 disk_info = prop_dictionary_create(); 1731 1732 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1733 cp = "ST506"; 1734 else { 1735 /* XXX Should have a case for ATA here, too. */ 1736 cp = "ESDI"; 1737 } 1738 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1739 1740 geom = prop_dictionary_create(); 1741 1742 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1743 1744 prop_dictionary_set_uint32(geom, "sector-size", 1745 DEV_BSIZE /* XXX 512? */); 1746 1747 prop_dictionary_set_uint16(geom, "sectors-per-track", 1748 wd->sc_params.atap_sectors); 1749 1750 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1751 wd->sc_params.atap_heads); 1752 1753 if (wd->sc_flags & WDF_LBA) 1754 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1755 wd->sc_capacity / 1756 (wd->sc_params.atap_heads * 1757 wd->sc_params.atap_sectors)); 1758 else 1759 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1760 wd->sc_params.atap_cylinders); 1761 1762 prop_dictionary_set(disk_info, "geometry", geom); 1763 prop_object_release(geom); 1764 1765 prop_dictionary_set(device_properties(wd->sc_dev), 1766 "disk-info", disk_info); 1767 1768 /* 1769 * Don't release disk_info here; we keep a reference to it. 1770 * disk_detach() will release it when we go away. 1771 */ 1772 1773 odisk_info = wd->sc_dk.dk_info; 1774 wd->sc_dk.dk_info = disk_info; 1775 if (odisk_info) 1776 prop_object_release(odisk_info); 1777 } 1778 1779 int 1780 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1781 { 1782 1783 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1784 case CMD_AGAIN: 1785 return 1; 1786 case CMD_ERR: 1787 /* 1788 * We `know' there's a drive here; just assume it's old. 1789 * This geometry is only used to read the MBR and print a 1790 * (false) attach message. 1791 */ 1792 strncpy(params->atap_model, "ST506", 1793 sizeof params->atap_model); 1794 params->atap_config = ATA_CFG_FIXED; 1795 params->atap_cylinders = 1024; 1796 params->atap_heads = 8; 1797 params->atap_sectors = 17; 1798 params->atap_multi = 1; 1799 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1800 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1801 /* FALLTHROUGH */ 1802 case CMD_OK: 1803 wd_params_to_properties(wd, params); 1804 return 0; 1805 default: 1806 panic("wd_get_params: bad return code from ata_get_params"); 1807 /* NOTREACHED */ 1808 } 1809 } 1810 1811 int 1812 wd_getcache(struct wd_softc *wd, int *bitsp) 1813 { 1814 struct ataparams params; 1815 1816 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1817 return EIO; 1818 if (params.atap_cmd_set1 == 0x0000 || 1819 params.atap_cmd_set1 == 0xffff || 1820 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1821 *bitsp = 0; 1822 return 0; 1823 } 1824 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1825 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1826 *bitsp |= DKCACHE_WRITE; 1827 1828 return 0; 1829 } 1830 1831 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1832 1833 int 1834 wd_setcache(struct wd_softc *wd, int bits) 1835 { 1836 struct ataparams params; 1837 struct ata_command ata_c; 1838 1839 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1840 return EIO; 1841 1842 if (params.atap_cmd_set1 == 0x0000 || 1843 params.atap_cmd_set1 == 0xffff || 1844 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1845 return EOPNOTSUPP; 1846 1847 if ((bits & DKCACHE_READ) == 0 || 1848 (bits & DKCACHE_SAVE) != 0) 1849 return EOPNOTSUPP; 1850 1851 memset(&ata_c, 0, sizeof(struct ata_command)); 1852 ata_c.r_command = SET_FEATURES; 1853 ata_c.r_st_bmask = 0; 1854 ata_c.r_st_pmask = 0; 1855 ata_c.timeout = 30000; /* 30s timeout */ 1856 ata_c.flags = AT_WAIT; 1857 if (bits & DKCACHE_WRITE) 1858 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1859 else 1860 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1861 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1862 aprint_error_dev(wd->sc_dev, 1863 "wd_setcache command not complete\n"); 1864 return EIO; 1865 } 1866 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1867 char sbuf[sizeof(at_errbits) + 64]; 1868 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1869 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1870 return EIO; 1871 } 1872 return 0; 1873 } 1874 1875 static int 1876 wd_standby(struct wd_softc *wd, int flags) 1877 { 1878 struct ata_command ata_c; 1879 1880 memset(&ata_c, 0, sizeof(struct ata_command)); 1881 ata_c.r_command = WDCC_STANDBY_IMMED; 1882 ata_c.r_st_bmask = WDCS_DRDY; 1883 ata_c.r_st_pmask = WDCS_DRDY; 1884 ata_c.flags = flags; 1885 ata_c.timeout = 30000; /* 30s timeout */ 1886 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1887 aprint_error_dev(wd->sc_dev, 1888 "standby immediate command didn't complete\n"); 1889 return EIO; 1890 } 1891 if (ata_c.flags & AT_ERROR) { 1892 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1893 return ENODEV; 1894 } 1895 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1896 char sbuf[sizeof(at_errbits) + 64]; 1897 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1898 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1899 return EIO; 1900 } 1901 return 0; 1902 } 1903 1904 int 1905 wd_flushcache(struct wd_softc *wd, int flags) 1906 { 1907 struct ata_command ata_c; 1908 1909 /* 1910 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1911 * only ATA-2 and still support it. 1912 */ 1913 if (wd->drvp->ata_vers < 4 && 1914 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1915 wd->sc_params.atap_cmd_set2 == 0xffff)) 1916 return ENODEV; 1917 memset(&ata_c, 0, sizeof(struct ata_command)); 1918 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1919 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1920 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1921 else 1922 ata_c.r_command = WDCC_FLUSHCACHE; 1923 ata_c.r_st_bmask = WDCS_DRDY; 1924 ata_c.r_st_pmask = WDCS_DRDY; 1925 ata_c.flags = flags; 1926 ata_c.timeout = 30000; /* 30s timeout */ 1927 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1928 aprint_error_dev(wd->sc_dev, 1929 "flush cache command didn't complete\n"); 1930 return EIO; 1931 } 1932 if (ata_c.flags & AT_ERROR) { 1933 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1934 return ENODEV; 1935 } 1936 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1937 char sbuf[sizeof(at_errbits) + 64]; 1938 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1939 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1940 sbuf); 1941 return EIO; 1942 } 1943 return 0; 1944 } 1945 1946 bool 1947 wd_shutdown(device_t dev, int how) 1948 { 1949 1950 struct wd_softc *wd = device_private(dev); 1951 wd_flushcache(wd, AT_POLL); 1952 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 1953 wd_standby(wd, AT_POLL); 1954 return true; 1955 } 1956 1957 /* 1958 * Allocate space for a ioctl queue structure. Mostly taken from 1959 * scsipi_ioctl.c 1960 */ 1961 struct wd_ioctl * 1962 wi_get(void) 1963 { 1964 struct wd_ioctl *wi; 1965 int s; 1966 1967 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1968 buf_init(&wi->wi_bp); 1969 s = splbio(); 1970 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1971 splx(s); 1972 return (wi); 1973 } 1974 1975 /* 1976 * Free an ioctl structure and remove it from our list 1977 */ 1978 1979 void 1980 wi_free(struct wd_ioctl *wi) 1981 { 1982 int s; 1983 1984 s = splbio(); 1985 LIST_REMOVE(wi, wi_list); 1986 splx(s); 1987 buf_destroy(&wi->wi_bp); 1988 free(wi, M_TEMP); 1989 } 1990 1991 /* 1992 * Find a wd_ioctl structure based on the struct buf. 1993 */ 1994 1995 struct wd_ioctl * 1996 wi_find(struct buf *bp) 1997 { 1998 struct wd_ioctl *wi; 1999 int s; 2000 2001 s = splbio(); 2002 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2003 if (bp == &wi->wi_bp) 2004 break; 2005 splx(s); 2006 return (wi); 2007 } 2008 2009 /* 2010 * Ioctl pseudo strategy routine 2011 * 2012 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2013 * happens here is: 2014 * 2015 * - wdioctl() queues a wd_ioctl structure. 2016 * 2017 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2018 * user space I/O is required. If physio() is called, physio() eventually 2019 * calls wdioctlstrategy(). 2020 * 2021 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2022 * to perform the actual command 2023 * 2024 * The reason for the use of the pseudo strategy routine is because 2025 * when doing I/O to/from user space, physio _really_ wants to be in 2026 * the loop. We could put the entire buffer into the ioctl request 2027 * structure, but that won't scale if we want to do things like download 2028 * microcode. 2029 */ 2030 2031 void 2032 wdioctlstrategy(struct buf *bp) 2033 { 2034 struct wd_ioctl *wi; 2035 struct ata_command ata_c; 2036 int error = 0; 2037 2038 wi = wi_find(bp); 2039 if (wi == NULL) { 2040 printf("wdioctlstrategy: " 2041 "No matching ioctl request found in queue\n"); 2042 error = EINVAL; 2043 goto bad; 2044 } 2045 2046 memset(&ata_c, 0, sizeof(ata_c)); 2047 2048 /* 2049 * Abort if physio broke up the transfer 2050 */ 2051 2052 if (bp->b_bcount != wi->wi_atareq.datalen) { 2053 printf("physio split wd ioctl request... cannot proceed\n"); 2054 error = EIO; 2055 goto bad; 2056 } 2057 2058 /* 2059 * Abort if we didn't get a buffer size that was a multiple of 2060 * our sector size (or was larger than NBBY) 2061 */ 2062 2063 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2064 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2065 (1 << NBBY)) { 2066 error = EINVAL; 2067 goto bad; 2068 } 2069 2070 /* 2071 * Make sure a timeout was supplied in the ioctl request 2072 */ 2073 2074 if (wi->wi_atareq.timeout == 0) { 2075 error = EINVAL; 2076 goto bad; 2077 } 2078 2079 if (wi->wi_atareq.flags & ATACMD_READ) 2080 ata_c.flags |= AT_READ; 2081 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2082 ata_c.flags |= AT_WRITE; 2083 2084 if (wi->wi_atareq.flags & ATACMD_READREG) 2085 ata_c.flags |= AT_READREG; 2086 2087 ata_c.flags |= AT_WAIT; 2088 2089 ata_c.timeout = wi->wi_atareq.timeout; 2090 ata_c.r_command = wi->wi_atareq.command; 2091 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2092 ata_c.r_cyl = wi->wi_atareq.cylinder; 2093 ata_c.r_sector = wi->wi_atareq.sec_num; 2094 ata_c.r_count = wi->wi_atareq.sec_count; 2095 ata_c.r_features = wi->wi_atareq.features; 2096 ata_c.r_st_bmask = WDCS_DRDY; 2097 ata_c.r_st_pmask = WDCS_DRDY; 2098 ata_c.data = wi->wi_bp.b_data; 2099 ata_c.bcount = wi->wi_bp.b_bcount; 2100 2101 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2102 != ATACMD_COMPLETE) { 2103 wi->wi_atareq.retsts = ATACMD_ERROR; 2104 goto bad; 2105 } 2106 2107 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2108 if (ata_c.flags & AT_ERROR) { 2109 wi->wi_atareq.retsts = ATACMD_ERROR; 2110 wi->wi_atareq.error = ata_c.r_error; 2111 } else if (ata_c.flags & AT_DF) 2112 wi->wi_atareq.retsts = ATACMD_DF; 2113 else 2114 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2115 } else { 2116 wi->wi_atareq.retsts = ATACMD_OK; 2117 if (wi->wi_atareq.flags & ATACMD_READREG) { 2118 wi->wi_atareq.head = ata_c.r_head ; 2119 wi->wi_atareq.cylinder = ata_c.r_cyl; 2120 wi->wi_atareq.sec_num = ata_c.r_sector; 2121 wi->wi_atareq.sec_count = ata_c.r_count; 2122 wi->wi_atareq.features = ata_c.r_features; 2123 wi->wi_atareq.error = ata_c.r_error; 2124 } 2125 } 2126 2127 bp->b_error = 0; 2128 biodone(bp); 2129 return; 2130 bad: 2131 bp->b_error = error; 2132 biodone(bp); 2133 } 2134
Indexes created Fri Sep 26 20:09:58 GMT 2025