wd.c revision 1.353
1 /* $NetBSD: wd.c,v 1.353 2007/12/11 02:02:31 jmcneill 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 1.353 2007/12/11 02:02:31 jmcneill 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/vnode.h> 92 #if NRND > 0 93 #include <sys/rnd.h> 94 #endif 95 96 #include <sys/intr.h> 97 #include <sys/bus.h> 98 99 #include <dev/ata/atareg.h> 100 #include <dev/ata/atavar.h> 101 #include <dev/ata/wdvar.h> 102 #include <dev/ic/wdcreg.h> 103 #include <sys/ataio.h> 104 #include "locators.h" 105 106 #include <prop/proplib.h> 107 108 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 109 110 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 111 #define WDIORETRIES 5 /* number of retries before giving up */ 112 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 113 114 #define WDUNIT(dev) DISKUNIT(dev) 115 #define WDPART(dev) DISKPART(dev) 116 #define WDMINOR(unit, part) DISKMINOR(unit, part) 117 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 118 119 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 120 121 #define DEBUG_INTR 0x01 122 #define DEBUG_XFERS 0x02 123 #define DEBUG_STATUS 0x04 124 #define DEBUG_FUNCS 0x08 125 #define DEBUG_PROBE 0x10 126 #ifdef ATADEBUG 127 int wdcdebug_wd_mask = 0x0; 128 #define ATADEBUG_PRINT(args, level) \ 129 if (wdcdebug_wd_mask & (level)) \ 130 printf args 131 #else 132 #define ATADEBUG_PRINT(args, level) 133 #endif 134 135 int wdprobe(struct device *, struct cfdata *, void *); 136 void wdattach(struct device *, struct device *, void *); 137 int wddetach(struct device *, int); 138 int wdactivate(struct device *, enum devact); 139 int wdprint(void *, char *); 140 void wdperror(const struct wd_softc *); 141 142 #if notyet 143 static bool wd_suspend(device_t); 144 static int wd_standby(struct wd_softc *, int); 145 #endif 146 147 CFATTACH_DECL(wd, sizeof(struct wd_softc), 148 wdprobe, wdattach, wddetach, wdactivate); 149 150 extern struct cfdriver wd_cd; 151 152 dev_type_open(wdopen); 153 dev_type_close(wdclose); 154 dev_type_read(wdread); 155 dev_type_write(wdwrite); 156 dev_type_ioctl(wdioctl); 157 dev_type_strategy(wdstrategy); 158 dev_type_dump(wddump); 159 dev_type_size(wdsize); 160 161 const struct bdevsw wd_bdevsw = { 162 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 163 }; 164 165 const struct cdevsw wd_cdevsw = { 166 wdopen, wdclose, wdread, wdwrite, wdioctl, 167 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 168 }; 169 170 /* 171 * Glue necessary to hook WDCIOCCOMMAND into physio 172 */ 173 174 struct wd_ioctl { 175 LIST_ENTRY(wd_ioctl) wi_list; 176 struct buf wi_bp; 177 struct uio wi_uio; 178 struct iovec wi_iov; 179 atareq_t wi_atareq; 180 struct wd_softc *wi_softc; 181 }; 182 183 LIST_HEAD(, wd_ioctl) wi_head; 184 185 struct wd_ioctl *wi_find(struct buf *); 186 void wi_free(struct wd_ioctl *); 187 struct wd_ioctl *wi_get(void); 188 void wdioctlstrategy(struct buf *); 189 190 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 191 void wdgetdisklabel(struct wd_softc *); 192 void wdstart(void *); 193 void __wdstart(struct wd_softc*, struct buf *); 194 void wdrestart(void *); 195 void wddone(void *); 196 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 197 int wd_flushcache(struct wd_softc *, int); 198 199 int wd_getcache(struct wd_softc *, int *); 200 int wd_setcache(struct wd_softc *, int); 201 202 struct dkdriver wddkdriver = { wdstrategy, minphys }; 203 204 #ifdef HAS_BAD144_HANDLING 205 static void bad144intern(struct wd_softc *); 206 #endif 207 208 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 209 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 210 211 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 212 213 /* 214 * Quirk table for IDE drives. Put more-specific matches first, since 215 * a simple globbing routine is used for matching. 216 */ 217 static const struct wd_quirk { 218 const char *wdq_match; /* inquiry pattern to match */ 219 int wdq_quirks; /* drive quirks */ 220 } wd_quirk_table[] = { 221 /* 222 * Some Seagate S-ATA drives have a PHY which can get confused 223 * with the way data is packetized by some S-ATA controllers. 224 * 225 * The work-around is to split in two any write transfer whose 226 * sector count % 15 == 1 (assuming 512 byte sectors). 227 * 228 * XXX This is an incomplete list. There are at least a couple 229 * XXX more model numbers. If you have trouble with such transfers 230 * XXX (8K is the most common) on Seagate S-ATA drives, please 231 * XXX notify thorpej (at) NetBSD.org. 232 */ 233 { "ST3120023AS", 234 WD_QUIRK_SPLIT_MOD15_WRITE }, 235 { "ST380023AS", 236 WD_QUIRK_SPLIT_MOD15_WRITE }, 237 238 /* 239 * These seagate drives seems to have issue addressing sector 0xfffffff 240 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 241 * LBA48 242 * Note that we can't just change the code to always use LBA48 for 243 * sector 0xfffffff, because this would break valid and working 244 * setups using LBA48 drives on non-LBA48-capable controllers 245 * (and it's hard to get a list of such controllers) 246 */ 247 { "ST3160021A*", 248 WD_QUIRK_FORCE_LBA48 }, 249 { "ST3160811A*", 250 WD_QUIRK_FORCE_LBA48 }, 251 { "ST3160812A*", 252 WD_QUIRK_FORCE_LBA48 }, 253 { "ST3160023A*", 254 WD_QUIRK_FORCE_LBA48 }, 255 { "ST3160827A*", 256 WD_QUIRK_FORCE_LBA48 }, 257 /* Attempt to catch all seagate drives larger than 200GB */ 258 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 259 WD_QUIRK_FORCE_LBA48 }, 260 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 261 WD_QUIRK_FORCE_LBA48 }, 262 { NULL, 263 0 } 264 }; 265 266 static const struct wd_quirk * 267 wd_lookup_quirks(const char *name) 268 { 269 const struct wd_quirk *wdq; 270 const char *estr; 271 272 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 273 /* 274 * We only want exact matches (which include matches 275 * against globbing characters). 276 */ 277 if (pmatch(name, wdq->wdq_match, &estr) == 2) 278 return (wdq); 279 } 280 return (NULL); 281 } 282 283 int 284 wdprobe(struct device *parent, struct cfdata *match, void *aux) 285 { 286 struct ata_device *adev = aux; 287 288 if (adev == NULL) 289 return 0; 290 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 291 return 0; 292 293 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 294 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 295 return 0; 296 return 1; 297 } 298 299 void 300 wdattach(struct device *parent, struct device *self, void *aux) 301 { 302 struct wd_softc *wd = (void *)self; 303 struct ata_device *adev= aux; 304 int i, blank; 305 char tbuf[41], pbuf[9], c, *p, *q; 306 const struct wd_quirk *wdq; 307 308 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 309 callout_init(&wd->sc_restart_ch, 0); 310 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 311 #ifdef WD_SOFTBADSECT 312 SLIST_INIT(&wd->sc_bslist); 313 #endif 314 wd->atabus = adev->adev_bustype; 315 wd->openings = adev->adev_openings; 316 wd->drvp = adev->adev_drv_data; 317 318 wd->drvp->drv_done = wddone; 319 wd->drvp->drv_softc = &wd->sc_dev; 320 321 aprint_naive("\n"); 322 323 /* read our drive info */ 324 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 325 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 326 return; 327 } 328 329 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 330 i < sizeof(wd->sc_params.atap_model); i++) { 331 c = *p++; 332 if (c == '\0') 333 break; 334 if (c != ' ') { 335 if (blank) { 336 *q++ = ' '; 337 blank = 0; 338 } 339 *q++ = c; 340 } else 341 blank = 1; 342 } 343 *q++ = '\0'; 344 345 aprint_normal(": <%s>\n", tbuf); 346 347 wdq = wd_lookup_quirks(tbuf); 348 if (wdq != NULL) 349 wd->sc_quirks = wdq->wdq_quirks; 350 351 if (wd->sc_quirks != 0) { 352 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 353 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 354 sbuf, sizeof(sbuf)); 355 aprint_normal("%s: quirks %s\n", wd->sc_dev.dv_xname, sbuf); 356 } 357 358 if ((wd->sc_params.atap_multi & 0xff) > 1) { 359 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 360 } else { 361 wd->sc_multi = 1; 362 } 363 364 aprint_verbose("%s: drive supports %d-sector PIO transfers,", 365 wd->sc_dev.dv_xname, wd->sc_multi); 366 367 /* 48-bit LBA addressing */ 368 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 369 wd->sc_flags |= WDF_LBA48; 370 371 /* Prior to ATA-4, LBA was optional. */ 372 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 373 wd->sc_flags |= WDF_LBA; 374 #if 0 375 /* ATA-4 requires LBA. */ 376 if (wd->sc_params.atap_ataversion != 0xffff && 377 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 378 wd->sc_flags |= WDF_LBA; 379 #endif 380 381 if ((wd->sc_flags & WDF_LBA48) != 0) { 382 aprint_verbose(" LBA48 addressing\n"); 383 wd->sc_capacity = 384 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 385 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 386 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 387 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 388 } else if ((wd->sc_flags & WDF_LBA) != 0) { 389 aprint_verbose(" LBA addressing\n"); 390 wd->sc_capacity = 391 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 392 wd->sc_params.atap_capacity[0]; 393 } else { 394 aprint_verbose(" chs addressing\n"); 395 wd->sc_capacity = 396 wd->sc_params.atap_cylinders * 397 wd->sc_params.atap_heads * 398 wd->sc_params.atap_sectors; 399 } 400 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 401 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 402 "%d bytes/sect x %llu sectors\n", 403 self->dv_xname, pbuf, 404 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 405 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 406 wd->sc_params.atap_cylinders, 407 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 408 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 409 410 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 411 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 412 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 413 /* 414 * Initialize and attach the disk structure. 415 */ 416 /* we fill in dk_info later */ 417 disk_init(&wd->sc_dk, wd->sc_dev.dv_xname, &wddkdriver); 418 disk_attach(&wd->sc_dk); 419 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 420 #if NRND > 0 421 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 422 RND_TYPE_DISK, 0); 423 #endif 424 425 /* Discover wedges on this disk. */ 426 dkwedge_discover(&wd->sc_dk); 427 428 if (!pmf_device_register(self, NULL, NULL)) 429 aprint_error_dev(self, "couldn't establish power handler\n"); 430 } 431 432 #if notyet 433 static bool 434 wd_suspend(device_t dv) 435 { 436 struct wd_softc *sc = device_private(dv); 437 438 wd_flushcache(sc, AT_WAIT | AT_POLL); 439 wd_standby(sc, AT_WAIT | AT_POLL); 440 441 return true; 442 } 443 #endif 444 445 int 446 wdactivate(struct device *self, enum devact act) 447 { 448 int rv = 0; 449 450 switch (act) { 451 case DVACT_ACTIVATE: 452 rv = EOPNOTSUPP; 453 break; 454 455 case DVACT_DEACTIVATE: 456 /* 457 * Nothing to do; we key off the device's DVF_ACTIVATE. 458 */ 459 break; 460 } 461 return (rv); 462 } 463 464 int 465 wddetach(struct device *self, int flags) 466 { 467 struct wd_softc *sc = (struct wd_softc *)self; 468 int s, bmaj, cmaj, i, mn; 469 470 /* locate the major number */ 471 bmaj = bdevsw_lookup_major(&wd_bdevsw); 472 cmaj = cdevsw_lookup_major(&wd_cdevsw); 473 474 /* Nuke the vnodes for any open instances. */ 475 for (i = 0; i < MAXPARTITIONS; i++) { 476 mn = WDMINOR(device_unit(self), i); 477 vdevgone(bmaj, mn, mn, VBLK); 478 vdevgone(cmaj, mn, mn, VCHR); 479 } 480 481 /* Delete all of our wedges. */ 482 dkwedge_delall(&sc->sc_dk); 483 484 s = splbio(); 485 486 /* Kill off any queued buffers. */ 487 bufq_drain(sc->sc_q); 488 489 bufq_free(sc->sc_q); 490 sc->atabus->ata_killpending(sc->drvp); 491 492 splx(s); 493 494 /* Detach disk. */ 495 disk_detach(&sc->sc_dk); 496 497 #ifdef WD_SOFTBADSECT 498 /* Clean out the bad sector list */ 499 while (!SLIST_EMPTY(&sc->sc_bslist)) { 500 void *head = SLIST_FIRST(&sc->sc_bslist); 501 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 502 free(head, M_TEMP); 503 } 504 sc->sc_bscount = 0; 505 #endif 506 507 pmf_device_deregister(self); 508 509 #if NRND > 0 510 /* Unhook the entropy source. */ 511 rnd_detach_source(&sc->rnd_source); 512 #endif 513 514 sc->drvp->drive_flags = 0; /* no drive any more here */ 515 516 return (0); 517 } 518 519 /* 520 * Read/write routine for a buffer. Validates the arguments and schedules the 521 * transfer. Does not wait for the transfer to complete. 522 */ 523 void 524 wdstrategy(struct buf *bp) 525 { 526 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(bp->b_dev)); 527 struct disklabel *lp = wd->sc_dk.dk_label; 528 daddr_t blkno; 529 int s; 530 531 ATADEBUG_PRINT(("wdstrategy (%s)\n", wd->sc_dev.dv_xname), 532 DEBUG_XFERS); 533 534 /* Valid request? */ 535 if (bp->b_blkno < 0 || 536 (bp->b_bcount % lp->d_secsize) != 0 || 537 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 538 bp->b_error = EINVAL; 539 goto done; 540 } 541 542 /* If device invalidated (e.g. media change, door open), error. */ 543 if ((wd->sc_flags & WDF_LOADED) == 0) { 544 bp->b_error = EIO; 545 goto done; 546 } 547 548 /* If it's a null transfer, return immediately. */ 549 if (bp->b_bcount == 0) 550 goto done; 551 552 /* 553 * Do bounds checking, adjust transfer. if error, process. 554 * If end of partition, just return. 555 */ 556 if (WDPART(bp->b_dev) == RAW_PART) { 557 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 558 wd->sc_capacity) <= 0) 559 goto done; 560 } else { 561 if (bounds_check_with_label(&wd->sc_dk, bp, 562 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 563 goto done; 564 } 565 566 /* 567 * Now convert the block number to absolute and put it in 568 * terms of the device's logical block size. 569 */ 570 if (lp->d_secsize >= DEV_BSIZE) 571 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 572 else 573 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 574 575 if (WDPART(bp->b_dev) != RAW_PART) 576 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 577 578 bp->b_rawblkno = blkno; 579 580 #ifdef WD_SOFTBADSECT 581 /* 582 * If the transfer about to be attempted contains only a block that 583 * is known to be bad then return an error for the transfer without 584 * even attempting to start a transfer up under the premis that we 585 * will just end up doing more retries for a transfer that will end 586 * up failing again. 587 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 588 */ 589 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 590 struct disk_badsectors *dbs; 591 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 592 593 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 594 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 595 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 596 bp->b_error = EIO; 597 goto done; 598 } 599 } 600 #endif 601 602 /* Queue transfer on drive, activate drive and controller if idle. */ 603 s = splbio(); 604 BUFQ_PUT(wd->sc_q, bp); 605 wdstart(wd); 606 splx(s); 607 return; 608 done: 609 /* Toss transfer; we're done early. */ 610 bp->b_resid = bp->b_bcount; 611 biodone(bp); 612 } 613 614 /* 615 * Queue a drive for I/O. 616 */ 617 void 618 wdstart(void *arg) 619 { 620 struct wd_softc *wd = arg; 621 struct buf *bp = NULL; 622 623 ATADEBUG_PRINT(("wdstart %s\n", wd->sc_dev.dv_xname), 624 DEBUG_XFERS); 625 while (wd->openings > 0) { 626 627 /* Is there a buf for us ? */ 628 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 629 return; 630 631 /* 632 * Make the command. First lock the device 633 */ 634 wd->openings--; 635 636 wd->retries = 0; 637 __wdstart(wd, bp); 638 } 639 } 640 641 static void 642 wd_split_mod15_write(struct buf *bp) 643 { 644 struct buf *obp = bp->b_private; 645 struct wd_softc *sc = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 646 647 if (__predict_false(bp->b_error != 0)) { 648 /* 649 * Propagate the error. If this was the first half of 650 * the original transfer, make sure to account for that 651 * in the residual. 652 */ 653 if (bp->b_data == obp->b_data) 654 bp->b_resid += bp->b_bcount; 655 goto done; 656 } 657 658 /* 659 * If this was the second half of the transfer, we're all done! 660 */ 661 if (bp->b_data != obp->b_data) 662 goto done; 663 664 /* 665 * Advance the pointer to the second half and issue that command 666 * using the same opening. 667 */ 668 bp->b_flags = obp->b_flags | B_CALL; 669 bp->b_data = (char *)bp->b_data + bp->b_bcount; 670 bp->b_blkno += (bp->b_bcount / 512); 671 bp->b_rawblkno += (bp->b_bcount / 512); 672 __wdstart(sc, bp); 673 return; 674 675 done: 676 obp->b_error = bp->b_error; 677 obp->b_resid = bp->b_resid; 678 putiobuf(bp); 679 biodone(obp); 680 sc->openings++; 681 /* wddone() will call wdstart() */ 682 } 683 684 void 685 __wdstart(struct wd_softc *wd, struct buf *bp) 686 { 687 688 /* 689 * Deal with the "split mod15 write" quirk. We just divide the 690 * transfer in two, doing the first half and then then second half 691 * with the same command opening. 692 * 693 * Note we MUST do this here, because we can't let insertion 694 * into the bufq cause the transfers to be re-merged. 695 */ 696 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 697 (bp->b_flags & B_READ) == 0 && 698 bp->b_bcount > 512 && 699 ((bp->b_bcount / 512) % 15) == 1)) { 700 struct buf *nbp; 701 702 /* already at splbio */ 703 nbp = getiobuf_nowait(); 704 if (__predict_false(nbp == NULL)) { 705 /* No memory -- fail the iop. */ 706 bp->b_error = ENOMEM; 707 bp->b_resid = bp->b_bcount; 708 biodone(bp); 709 wd->openings++; 710 return; 711 } 712 713 nbp->b_error = 0; 714 nbp->b_proc = bp->b_proc; 715 nbp->b_vp = NULLVP; 716 nbp->b_dev = bp->b_dev; 717 718 nbp->b_bcount = bp->b_bcount / 2; 719 nbp->b_bufsize = bp->b_bcount / 2; 720 nbp->b_data = bp->b_data; 721 722 nbp->b_blkno = bp->b_blkno; 723 nbp->b_rawblkno = bp->b_rawblkno; 724 725 nbp->b_flags = bp->b_flags | B_CALL; 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 = 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", wd->sc_dev.dv_xname), 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 && 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 printf("%s: soft error (corrected)\n", 867 wd->sc_dev.dv_xname); 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_flags & B_CALL) != 0 && 880 bp->b_iodone == wd_split_mod15_write)) 881 biodone(bp); 882 else { 883 biodone(bp); 884 wd->openings++; 885 } 886 wdstart(wd); 887 } 888 889 void 890 wdrestart(void *v) 891 { 892 struct wd_softc *wd = v; 893 struct buf *bp = wd->sc_bp; 894 int s; 895 896 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 897 DEBUG_XFERS); 898 s = splbio(); 899 __wdstart(v, bp); 900 splx(s); 901 } 902 903 int 904 wdread(dev_t dev, struct uio *uio, int flags) 905 { 906 907 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 908 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 909 } 910 911 int 912 wdwrite(dev_t dev, struct uio *uio, int flags) 913 { 914 915 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 916 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 917 } 918 919 int 920 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 921 { 922 struct wd_softc *wd; 923 int part, error; 924 925 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 926 wd = device_lookup(&wd_cd, WDUNIT(dev)); 927 if (wd == NULL) 928 return (ENXIO); 929 930 if (! device_is_active(&wd->sc_dev)) 931 return (ENODEV); 932 933 part = WDPART(dev); 934 935 mutex_enter(&wd->sc_dk.dk_openlock); 936 937 /* 938 * If there are wedges, and this is not RAW_PART, then we 939 * need to fail. 940 */ 941 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 942 error = EBUSY; 943 goto bad1; 944 } 945 946 /* 947 * If this is the first open of this device, add a reference 948 * to the adapter. 949 */ 950 if (wd->sc_dk.dk_openmask == 0 && 951 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 952 goto bad1; 953 954 if (wd->sc_dk.dk_openmask != 0) { 955 /* 956 * If any partition is open, but the disk has been invalidated, 957 * disallow further opens. 958 */ 959 if ((wd->sc_flags & WDF_LOADED) == 0) { 960 error = EIO; 961 goto bad2; 962 } 963 } else { 964 if ((wd->sc_flags & WDF_LOADED) == 0) { 965 wd->sc_flags |= WDF_LOADED; 966 967 /* Load the physical device parameters. */ 968 wd_get_params(wd, AT_WAIT, &wd->sc_params); 969 970 /* Load the partition info if not already loaded. */ 971 wdgetdisklabel(wd); 972 } 973 } 974 975 /* Check that the partition exists. */ 976 if (part != RAW_PART && 977 (part >= wd->sc_dk.dk_label->d_npartitions || 978 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 979 error = ENXIO; 980 goto bad2; 981 } 982 983 /* Insure only one open at a time. */ 984 switch (fmt) { 985 case S_IFCHR: 986 wd->sc_dk.dk_copenmask |= (1 << part); 987 break; 988 case S_IFBLK: 989 wd->sc_dk.dk_bopenmask |= (1 << part); 990 break; 991 } 992 wd->sc_dk.dk_openmask = 993 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 994 995 mutex_exit(&wd->sc_dk.dk_openlock); 996 return 0; 997 998 bad2: 999 if (wd->sc_dk.dk_openmask == 0) 1000 wd->atabus->ata_delref(wd->drvp); 1001 bad1: 1002 mutex_exit(&wd->sc_dk.dk_openlock); 1003 return error; 1004 } 1005 1006 int 1007 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1008 { 1009 struct wd_softc *wd = device_lookup(&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 printf("%s: %s\n", wd->sc_dev.dv_xname, 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 = wd->sc_dev.dv_xname; 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 = device_lookup(&wd_cd, WDUNIT(dev)); 1181 int error = 0, s; 1182 #ifdef __HAVE_OLD_DISKLABEL 1183 struct disklabel *newlabel = NULL; 1184 #endif 1185 1186 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1187 1188 if ((wd->sc_flags & WDF_LOADED) == 0) 1189 return EIO; 1190 1191 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1192 if (error != EPASSTHROUGH) 1193 return (error); 1194 1195 switch (xfer) { 1196 #ifdef HAS_BAD144_HANDLING 1197 case DIOCSBAD: 1198 if ((flag & FWRITE) == 0) 1199 return EBADF; 1200 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1201 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1202 bad144intern(wd); 1203 return 0; 1204 #endif 1205 #ifdef WD_SOFTBADSECT 1206 case DIOCBSLIST : 1207 { 1208 u_int32_t count, missing, skip; 1209 struct disk_badsecinfo dbsi; 1210 struct disk_badsectors *dbs; 1211 size_t available; 1212 uint8_t *laddr; 1213 1214 dbsi = *(struct disk_badsecinfo *)addr; 1215 missing = wd->sc_bscount; 1216 count = 0; 1217 available = dbsi.dbsi_bufsize; 1218 skip = dbsi.dbsi_skip; 1219 laddr = (uint8_t *)dbsi.dbsi_buffer; 1220 1221 /* 1222 * We start this loop with the expectation that all of the 1223 * entries will be missed and decrement this counter each 1224 * time we either skip over one (already copied out) or 1225 * we actually copy it back to user space. The structs 1226 * holding the bad sector information are copied directly 1227 * back to user space whilst the summary is returned via 1228 * the struct passed in via the ioctl. 1229 */ 1230 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1231 if (skip > 0) { 1232 missing--; 1233 skip--; 1234 continue; 1235 } 1236 if (available < sizeof(*dbs)) 1237 break; 1238 available -= sizeof(*dbs); 1239 copyout(dbs, laddr, sizeof(*dbs)); 1240 laddr += sizeof(*dbs); 1241 missing--; 1242 count++; 1243 } 1244 dbsi.dbsi_left = missing; 1245 dbsi.dbsi_copied = count; 1246 *(struct disk_badsecinfo *)addr = dbsi; 1247 return 0; 1248 } 1249 1250 case DIOCBSFLUSH : 1251 /* Clean out the bad sector list */ 1252 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1253 void *head = SLIST_FIRST(&wd->sc_bslist); 1254 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1255 free(head, M_TEMP); 1256 } 1257 wd->sc_bscount = 0; 1258 return 0; 1259 #endif 1260 case DIOCGDINFO: 1261 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1262 return 0; 1263 #ifdef __HAVE_OLD_DISKLABEL 1264 case ODIOCGDINFO: 1265 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1266 if (newlabel == NULL) 1267 return EIO; 1268 *newlabel = *(wd->sc_dk.dk_label); 1269 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1270 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1271 else 1272 error = ENOTTY; 1273 free(newlabel, M_TEMP); 1274 return error; 1275 #endif 1276 1277 case DIOCGPART: 1278 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1279 ((struct partinfo *)addr)->part = 1280 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1281 return 0; 1282 1283 case DIOCWDINFO: 1284 case DIOCSDINFO: 1285 #ifdef __HAVE_OLD_DISKLABEL 1286 case ODIOCWDINFO: 1287 case ODIOCSDINFO: 1288 #endif 1289 { 1290 struct disklabel *lp; 1291 1292 if ((flag & FWRITE) == 0) 1293 return EBADF; 1294 1295 #ifdef __HAVE_OLD_DISKLABEL 1296 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1297 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1298 if (newlabel == NULL) 1299 return EIO; 1300 memset(newlabel, 0, sizeof newlabel); 1301 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1302 lp = newlabel; 1303 } else 1304 #endif 1305 lp = (struct disklabel *)addr; 1306 1307 mutex_enter(&wd->sc_dk.dk_openlock); 1308 wd->sc_flags |= WDF_LABELLING; 1309 1310 error = setdisklabel(wd->sc_dk.dk_label, 1311 lp, /*wd->sc_dk.dk_openmask : */0, 1312 wd->sc_dk.dk_cpulabel); 1313 if (error == 0) { 1314 if (wd->drvp->state > RESET) { 1315 s = splbio(); 1316 wd->drvp->drive_flags |= DRIVE_RESET; 1317 splx(s); 1318 } 1319 if (xfer == DIOCWDINFO 1320 #ifdef __HAVE_OLD_DISKLABEL 1321 || xfer == ODIOCWDINFO 1322 #endif 1323 ) 1324 error = writedisklabel(WDLABELDEV(dev), 1325 wdstrategy, wd->sc_dk.dk_label, 1326 wd->sc_dk.dk_cpulabel); 1327 } 1328 1329 wd->sc_flags &= ~WDF_LABELLING; 1330 mutex_exit(&wd->sc_dk.dk_openlock); 1331 #ifdef __HAVE_OLD_DISKLABEL 1332 if (newlabel != NULL) 1333 free(newlabel, M_TEMP); 1334 #endif 1335 return error; 1336 } 1337 1338 case DIOCKLABEL: 1339 if (*(int *)addr) 1340 wd->sc_flags |= WDF_KLABEL; 1341 else 1342 wd->sc_flags &= ~WDF_KLABEL; 1343 return 0; 1344 1345 case DIOCWLABEL: 1346 if ((flag & FWRITE) == 0) 1347 return EBADF; 1348 if (*(int *)addr) 1349 wd->sc_flags |= WDF_WLABEL; 1350 else 1351 wd->sc_flags &= ~WDF_WLABEL; 1352 return 0; 1353 1354 case DIOCGDEFLABEL: 1355 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1356 return 0; 1357 #ifdef __HAVE_OLD_DISKLABEL 1358 case ODIOCGDEFLABEL: 1359 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1360 if (newlabel == NULL) 1361 return EIO; 1362 wdgetdefaultlabel(wd, newlabel); 1363 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1364 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1365 else 1366 error = ENOTTY; 1367 free(newlabel, M_TEMP); 1368 return error; 1369 #endif 1370 1371 #ifdef notyet 1372 case DIOCWFORMAT: 1373 if ((flag & FWRITE) == 0) 1374 return EBADF; 1375 { 1376 register struct format_op *fop; 1377 struct iovec aiov; 1378 struct uio auio; 1379 1380 fop = (struct format_op *)addr; 1381 aiov.iov_base = fop->df_buf; 1382 aiov.iov_len = fop->df_count; 1383 auio.uio_iov = &aiov; 1384 auio.uio_iovcnt = 1; 1385 auio.uio_resid = fop->df_count; 1386 auio.uio_offset = 1387 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1388 auio.uio_vmspace = l->l_proc->p_vmspace; 1389 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1390 &auio); 1391 fop->df_count -= auio.uio_resid; 1392 fop->df_reg[0] = wdc->sc_status; 1393 fop->df_reg[1] = wdc->sc_error; 1394 return error; 1395 } 1396 #endif 1397 case DIOCGCACHE: 1398 return wd_getcache(wd, (int *)addr); 1399 1400 case DIOCSCACHE: 1401 return wd_setcache(wd, *(int *)addr); 1402 1403 case DIOCCACHESYNC: 1404 return wd_flushcache(wd, AT_WAIT); 1405 1406 case ATAIOCCOMMAND: 1407 /* 1408 * Make sure this command is (relatively) safe first 1409 */ 1410 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1411 (flag & FWRITE) == 0) 1412 return (EBADF); 1413 { 1414 struct wd_ioctl *wi; 1415 atareq_t *atareq = (atareq_t *) addr; 1416 int error1; 1417 1418 wi = wi_get(); 1419 wi->wi_softc = wd; 1420 wi->wi_atareq = *atareq; 1421 1422 if (atareq->datalen && atareq->flags & 1423 (ATACMD_READ | ATACMD_WRITE)) { 1424 void *tbuf; 1425 if (atareq->datalen < DEV_BSIZE 1426 && atareq->command == WDCC_IDENTIFY) { 1427 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1428 wi->wi_iov.iov_base = tbuf; 1429 wi->wi_iov.iov_len = DEV_BSIZE; 1430 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1431 } else { 1432 tbuf = NULL; 1433 wi->wi_iov.iov_base = atareq->databuf; 1434 wi->wi_iov.iov_len = atareq->datalen; 1435 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1436 } 1437 wi->wi_uio.uio_iov = &wi->wi_iov; 1438 wi->wi_uio.uio_iovcnt = 1; 1439 wi->wi_uio.uio_resid = atareq->datalen; 1440 wi->wi_uio.uio_offset = 0; 1441 wi->wi_uio.uio_rw = 1442 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1443 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1444 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1445 minphys, &wi->wi_uio); 1446 if (tbuf != NULL && error1 == 0) { 1447 error1 = copyout(tbuf, atareq->databuf, 1448 atareq->datalen); 1449 free(tbuf, M_TEMP); 1450 } 1451 } else { 1452 /* No need to call physio if we don't have any 1453 user data */ 1454 wi->wi_bp.b_flags = 0; 1455 wi->wi_bp.b_data = 0; 1456 wi->wi_bp.b_bcount = 0; 1457 wi->wi_bp.b_dev = 0; 1458 wi->wi_bp.b_proc = l->l_proc; 1459 wdioctlstrategy(&wi->wi_bp); 1460 error1 = wi->wi_bp.b_error; 1461 } 1462 *atareq = wi->wi_atareq; 1463 wi_free(wi); 1464 return(error1); 1465 } 1466 1467 case DIOCAWEDGE: 1468 { 1469 struct dkwedge_info *dkw = (void *) addr; 1470 1471 if ((flag & FWRITE) == 0) 1472 return (EBADF); 1473 1474 /* If the ioctl happens here, the parent is us. */ 1475 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1476 return (dkwedge_add(dkw)); 1477 } 1478 1479 case DIOCDWEDGE: 1480 { 1481 struct dkwedge_info *dkw = (void *) addr; 1482 1483 if ((flag & FWRITE) == 0) 1484 return (EBADF); 1485 1486 /* If the ioctl happens here, the parent is us. */ 1487 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1488 return (dkwedge_del(dkw)); 1489 } 1490 1491 case DIOCLWEDGES: 1492 { 1493 struct dkwedge_list *dkwl = (void *) addr; 1494 1495 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1496 } 1497 1498 case DIOCGSTRATEGY: 1499 { 1500 struct disk_strategy *dks = (void *)addr; 1501 1502 s = splbio(); 1503 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1504 sizeof(dks->dks_name)); 1505 splx(s); 1506 dks->dks_paramlen = 0; 1507 1508 return 0; 1509 } 1510 1511 case DIOCSSTRATEGY: 1512 { 1513 struct disk_strategy *dks = (void *)addr; 1514 struct bufq_state *new; 1515 struct bufq_state *old; 1516 1517 if ((flag & FWRITE) == 0) { 1518 return EBADF; 1519 } 1520 if (dks->dks_param != NULL) { 1521 return EINVAL; 1522 } 1523 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1524 error = bufq_alloc(&new, dks->dks_name, 1525 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1526 if (error) { 1527 return error; 1528 } 1529 s = splbio(); 1530 old = wd->sc_q; 1531 bufq_move(new, old); 1532 wd->sc_q = new; 1533 splx(s); 1534 bufq_free(old); 1535 1536 return 0; 1537 } 1538 1539 default: 1540 return ENOTTY; 1541 } 1542 1543 #ifdef DIAGNOSTIC 1544 panic("wdioctl: impossible"); 1545 #endif 1546 } 1547 1548 #ifdef B_FORMAT 1549 int 1550 wdformat(struct buf *bp) 1551 { 1552 1553 bp->b_flags |= B_FORMAT; 1554 return wdstrategy(bp); 1555 } 1556 #endif 1557 1558 int 1559 wdsize(dev_t dev) 1560 { 1561 struct wd_softc *wd; 1562 int part, omask; 1563 int size; 1564 1565 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1566 1567 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1568 if (wd == NULL) 1569 return (-1); 1570 1571 part = WDPART(dev); 1572 omask = wd->sc_dk.dk_openmask & (1 << part); 1573 1574 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1575 return (-1); 1576 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1577 size = -1; 1578 else 1579 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1580 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1581 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1582 return (-1); 1583 return (size); 1584 } 1585 1586 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1587 static int wddoingadump = 0; 1588 static int wddumprecalibrated = 0; 1589 1590 /* 1591 * Dump core after a system crash. 1592 */ 1593 int 1594 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1595 { 1596 struct wd_softc *wd; /* disk unit to do the I/O */ 1597 struct disklabel *lp; /* disk's disklabel */ 1598 int part, err; 1599 int nblks; /* total number of sectors left to write */ 1600 1601 /* Check if recursive dump; if so, punt. */ 1602 if (wddoingadump) 1603 return EFAULT; 1604 wddoingadump = 1; 1605 1606 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1607 if (wd == NULL) 1608 return (ENXIO); 1609 1610 part = WDPART(dev); 1611 1612 /* Convert to disk sectors. Request must be a multiple of size. */ 1613 lp = wd->sc_dk.dk_label; 1614 if ((size % lp->d_secsize) != 0) 1615 return EFAULT; 1616 nblks = size / lp->d_secsize; 1617 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1618 1619 /* Check transfer bounds against partition size. */ 1620 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1621 return EINVAL; 1622 1623 /* Offset block number to start of partition. */ 1624 blkno += lp->d_partitions[part].p_offset; 1625 1626 /* Recalibrate, if first dump transfer. */ 1627 if (wddumprecalibrated == 0) { 1628 wddumprecalibrated = 1; 1629 (*wd->atabus->ata_reset_drive)(wd->drvp, 1630 AT_POLL | AT_RST_EMERG); 1631 wd->drvp->state = RESET; 1632 } 1633 1634 wd->sc_bp = NULL; 1635 wd->sc_wdc_bio.blkno = blkno; 1636 wd->sc_wdc_bio.flags = ATA_POLL; 1637 if (wd->sc_flags & WDF_LBA48 && 1638 (blkno > LBA48_THRESHOLD || 1639 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1640 wd->sc_wdc_bio.flags |= ATA_LBA48; 1641 if (wd->sc_flags & WDF_LBA) 1642 wd->sc_wdc_bio.flags |= ATA_LBA; 1643 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1644 wd->sc_wdc_bio.databuf = va; 1645 #ifndef WD_DUMP_NOT_TRUSTED 1646 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1647 case ATACMD_TRY_AGAIN: 1648 panic("wddump: try again"); 1649 break; 1650 case ATACMD_QUEUED: 1651 panic("wddump: polled command has been queued"); 1652 break; 1653 case ATACMD_COMPLETE: 1654 break; 1655 } 1656 switch(wd->sc_wdc_bio.error) { 1657 case TIMEOUT: 1658 printf("wddump: device timed out"); 1659 err = EIO; 1660 break; 1661 case ERR_DF: 1662 printf("wddump: drive fault"); 1663 err = EIO; 1664 break; 1665 case ERR_DMA: 1666 printf("wddump: DMA error"); 1667 err = EIO; 1668 break; 1669 case ERROR: 1670 printf("wddump: "); 1671 wdperror(wd); 1672 err = EIO; 1673 break; 1674 case NOERROR: 1675 err = 0; 1676 break; 1677 default: 1678 panic("wddump: unknown error type"); 1679 } 1680 if (err != 0) { 1681 printf("\n"); 1682 return err; 1683 } 1684 #else /* WD_DUMP_NOT_TRUSTED */ 1685 /* Let's just talk about this first... */ 1686 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1687 unit, va, cylin, head, sector); 1688 delay(500 * 1000); /* half a second */ 1689 #endif 1690 1691 wddoingadump = 0; 1692 return 0; 1693 } 1694 1695 #ifdef HAS_BAD144_HANDLING 1696 /* 1697 * Internalize the bad sector table. 1698 */ 1699 void 1700 bad144intern(struct wd_softc *wd) 1701 { 1702 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1703 struct disklabel *lp = wd->sc_dk.dk_label; 1704 int i = 0; 1705 1706 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1707 1708 for (; i < NBT_BAD; i++) { 1709 if (bt->bt_bad[i].bt_cyl == 0xffff) 1710 break; 1711 wd->sc_badsect[i] = 1712 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1713 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1714 (bt->bt_bad[i].bt_trksec & 0xff); 1715 } 1716 for (; i < NBT_BAD+1; i++) 1717 wd->sc_badsect[i] = -1; 1718 } 1719 #endif 1720 1721 static void 1722 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1723 { 1724 prop_dictionary_t disk_info, odisk_info, geom; 1725 const char *cp; 1726 1727 disk_info = prop_dictionary_create(); 1728 1729 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1730 cp = "ST506"; 1731 else { 1732 /* XXX Should have a case for ATA here, too. */ 1733 cp = "ESDI"; 1734 } 1735 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1736 1737 geom = prop_dictionary_create(); 1738 1739 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1740 1741 prop_dictionary_set_uint32(geom, "sector-size", 1742 DEV_BSIZE /* XXX 512? */); 1743 1744 prop_dictionary_set_uint16(geom, "sectors-per-track", 1745 wd->sc_params.atap_sectors); 1746 1747 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1748 wd->sc_params.atap_heads); 1749 1750 if (wd->sc_flags & WDF_LBA) 1751 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1752 wd->sc_capacity / 1753 (wd->sc_params.atap_heads * 1754 wd->sc_params.atap_sectors)); 1755 else 1756 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1757 wd->sc_params.atap_cylinders); 1758 1759 prop_dictionary_set(disk_info, "geometry", geom); 1760 prop_object_release(geom); 1761 1762 prop_dictionary_set(device_properties(&wd->sc_dev), 1763 "disk-info", disk_info); 1764 1765 /* 1766 * Don't release disk_info here; we keep a reference to it. 1767 * disk_detach() will release it when we go away. 1768 */ 1769 1770 odisk_info = wd->sc_dk.dk_info; 1771 wd->sc_dk.dk_info = disk_info; 1772 if (odisk_info) 1773 prop_object_release(odisk_info); 1774 } 1775 1776 int 1777 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1778 { 1779 1780 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1781 case CMD_AGAIN: 1782 return 1; 1783 case CMD_ERR: 1784 /* 1785 * We `know' there's a drive here; just assume it's old. 1786 * This geometry is only used to read the MBR and print a 1787 * (false) attach message. 1788 */ 1789 strncpy(params->atap_model, "ST506", 1790 sizeof params->atap_model); 1791 params->atap_config = ATA_CFG_FIXED; 1792 params->atap_cylinders = 1024; 1793 params->atap_heads = 8; 1794 params->atap_sectors = 17; 1795 params->atap_multi = 1; 1796 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1797 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1798 /* FALLTHROUGH */ 1799 case CMD_OK: 1800 wd_params_to_properties(wd, params); 1801 return 0; 1802 default: 1803 panic("wd_get_params: bad return code from ata_get_params"); 1804 /* NOTREACHED */ 1805 } 1806 } 1807 1808 int 1809 wd_getcache(struct wd_softc *wd, int *bitsp) 1810 { 1811 struct ataparams params; 1812 1813 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1814 return EIO; 1815 if (params.atap_cmd_set1 == 0x0000 || 1816 params.atap_cmd_set1 == 0xffff || 1817 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1818 *bitsp = 0; 1819 return 0; 1820 } 1821 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1822 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1823 *bitsp |= DKCACHE_WRITE; 1824 1825 return 0; 1826 } 1827 1828 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1829 1830 int 1831 wd_setcache(struct wd_softc *wd, int bits) 1832 { 1833 struct ataparams params; 1834 struct ata_command ata_c; 1835 1836 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1837 return EIO; 1838 1839 if (params.atap_cmd_set1 == 0x0000 || 1840 params.atap_cmd_set1 == 0xffff || 1841 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1842 return EOPNOTSUPP; 1843 1844 if ((bits & DKCACHE_READ) == 0 || 1845 (bits & DKCACHE_SAVE) != 0) 1846 return EOPNOTSUPP; 1847 1848 memset(&ata_c, 0, sizeof(struct ata_command)); 1849 ata_c.r_command = SET_FEATURES; 1850 ata_c.r_st_bmask = 0; 1851 ata_c.r_st_pmask = 0; 1852 ata_c.timeout = 30000; /* 30s timeout */ 1853 ata_c.flags = AT_WAIT; 1854 if (bits & DKCACHE_WRITE) 1855 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1856 else 1857 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1858 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1859 printf("%s: wd_setcache command not complete\n", 1860 wd->sc_dev.dv_xname); 1861 return EIO; 1862 } 1863 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1864 char sbuf[sizeof(at_errbits) + 64]; 1865 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1866 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1867 sbuf); 1868 return EIO; 1869 } 1870 return 0; 1871 } 1872 1873 #if notyet 1874 static int 1875 wd_standby(struct wd_softc *wd, int flags) 1876 { 1877 struct ata_command ata_c; 1878 1879 memset(&ata_c, 0, sizeof(struct ata_command)); 1880 ata_c.r_command = WDCC_STANDBY_IMMED; 1881 ata_c.r_st_bmask = WDCS_DRDY; 1882 ata_c.r_st_pmask = WDCS_DRDY; 1883 ata_c.flags = flags; 1884 ata_c.timeout = 30000; /* 30s timeout */ 1885 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1886 aprint_error_dev(&wd->sc_dev, 1887 "standby immediate command didn't complete\n"); 1888 return EIO; 1889 } 1890 if (ata_c.flags & AT_ERROR) { 1891 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1892 return ENODEV; 1893 } 1894 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1895 char sbuf[sizeof(at_errbits) + 64]; 1896 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1897 aprint_error_dev(&wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1898 return EIO; 1899 } 1900 return 0; 1901 } 1902 #endif 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 printf("%s: flush cache command didn't complete\n", 1929 wd->sc_dev.dv_xname); 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 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1940 sbuf); 1941 return EIO; 1942 } 1943 return 0; 1944 } 1945 1946 /* 1947 * Allocate space for a ioctl queue structure. Mostly taken from 1948 * scsipi_ioctl.c 1949 */ 1950 struct wd_ioctl * 1951 wi_get(void) 1952 { 1953 struct wd_ioctl *wi; 1954 int s; 1955 1956 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1957 simple_lock_init(&wi->wi_bp.b_interlock); 1958 s = splbio(); 1959 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1960 splx(s); 1961 return (wi); 1962 } 1963 1964 /* 1965 * Free an ioctl structure and remove it from our list 1966 */ 1967 1968 void 1969 wi_free(struct wd_ioctl *wi) 1970 { 1971 int s; 1972 1973 s = splbio(); 1974 LIST_REMOVE(wi, wi_list); 1975 splx(s); 1976 free(wi, M_TEMP); 1977 } 1978 1979 /* 1980 * Find a wd_ioctl structure based on the struct buf. 1981 */ 1982 1983 struct wd_ioctl * 1984 wi_find(struct buf *bp) 1985 { 1986 struct wd_ioctl *wi; 1987 int s; 1988 1989 s = splbio(); 1990 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1991 if (bp == &wi->wi_bp) 1992 break; 1993 splx(s); 1994 return (wi); 1995 } 1996 1997 /* 1998 * Ioctl pseudo strategy routine 1999 * 2000 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2001 * happens here is: 2002 * 2003 * - wdioctl() queues a wd_ioctl structure. 2004 * 2005 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2006 * user space I/O is required. If physio() is called, physio() eventually 2007 * calls wdioctlstrategy(). 2008 * 2009 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2010 * to perform the actual command 2011 * 2012 * The reason for the use of the pseudo strategy routine is because 2013 * when doing I/O to/from user space, physio _really_ wants to be in 2014 * the loop. We could put the entire buffer into the ioctl request 2015 * structure, but that won't scale if we want to do things like download 2016 * microcode. 2017 */ 2018 2019 void 2020 wdioctlstrategy(struct buf *bp) 2021 { 2022 struct wd_ioctl *wi; 2023 struct ata_command ata_c; 2024 int error = 0; 2025 2026 wi = wi_find(bp); 2027 if (wi == NULL) { 2028 printf("wdioctlstrategy: " 2029 "No matching ioctl request found in queue\n"); 2030 error = EINVAL; 2031 goto done; 2032 } 2033 2034 memset(&ata_c, 0, sizeof(ata_c)); 2035 2036 /* 2037 * Abort if physio broke up the transfer 2038 */ 2039 2040 if (bp->b_bcount != wi->wi_atareq.datalen) { 2041 printf("physio split wd ioctl request... cannot proceed\n"); 2042 error = EIO; 2043 goto done; 2044 } 2045 2046 /* 2047 * Abort if we didn't get a buffer size that was a multiple of 2048 * our sector size (or was larger than NBBY) 2049 */ 2050 2051 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2052 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2053 (1 << NBBY)) { 2054 error = EINVAL; 2055 goto done; 2056 } 2057 2058 /* 2059 * Make sure a timeout was supplied in the ioctl request 2060 */ 2061 2062 if (wi->wi_atareq.timeout == 0) { 2063 error = EINVAL; 2064 goto done; 2065 } 2066 2067 if (wi->wi_atareq.flags & ATACMD_READ) 2068 ata_c.flags |= AT_READ; 2069 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2070 ata_c.flags |= AT_WRITE; 2071 2072 if (wi->wi_atareq.flags & ATACMD_READREG) 2073 ata_c.flags |= AT_READREG; 2074 2075 ata_c.flags |= AT_WAIT; 2076 2077 ata_c.timeout = wi->wi_atareq.timeout; 2078 ata_c.r_command = wi->wi_atareq.command; 2079 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2080 ata_c.r_cyl = wi->wi_atareq.cylinder; 2081 ata_c.r_sector = wi->wi_atareq.sec_num; 2082 ata_c.r_count = wi->wi_atareq.sec_count; 2083 ata_c.r_features = wi->wi_atareq.features; 2084 ata_c.r_st_bmask = WDCS_DRDY; 2085 ata_c.r_st_pmask = WDCS_DRDY; 2086 ata_c.data = wi->wi_bp.b_data; 2087 ata_c.bcount = wi->wi_bp.b_bcount; 2088 2089 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2090 != ATACMD_COMPLETE) { 2091 wi->wi_atareq.retsts = ATACMD_ERROR; 2092 error = EIO; 2093 goto done; 2094 } 2095 2096 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2097 if (ata_c.flags & AT_ERROR) { 2098 wi->wi_atareq.retsts = ATACMD_ERROR; 2099 wi->wi_atareq.error = ata_c.r_error; 2100 } else if (ata_c.flags & AT_DF) 2101 wi->wi_atareq.retsts = ATACMD_DF; 2102 else 2103 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2104 } else { 2105 wi->wi_atareq.retsts = ATACMD_OK; 2106 if (wi->wi_atareq.flags & ATACMD_READREG) { 2107 wi->wi_atareq.head = ata_c.r_head ; 2108 wi->wi_atareq.cylinder = ata_c.r_cyl; 2109 wi->wi_atareq.sec_num = ata_c.r_sector; 2110 wi->wi_atareq.sec_count = ata_c.r_count; 2111 wi->wi_atareq.features = ata_c.r_features; 2112 wi->wi_atareq.error = ata_c.r_error; 2113 } 2114 } 2115 2116 done: 2117 bp->b_error = error; 2118 biodone(bp); 2119 } 2120
Indexes created Sun Sep 28 12:09:53 GMT 2025