wd.c revision 1.351
1 /* $NetBSD: wd.c,v 1.351 2007/12/09 20:27:54 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 1.351 2007/12/09 20:27:54 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 static bool wd_suspend(device_t); 143 144 CFATTACH_DECL(wd, sizeof(struct wd_softc), 145 wdprobe, wdattach, wddetach, wdactivate); 146 147 extern struct cfdriver wd_cd; 148 149 dev_type_open(wdopen); 150 dev_type_close(wdclose); 151 dev_type_read(wdread); 152 dev_type_write(wdwrite); 153 dev_type_ioctl(wdioctl); 154 dev_type_strategy(wdstrategy); 155 dev_type_dump(wddump); 156 dev_type_size(wdsize); 157 158 const struct bdevsw wd_bdevsw = { 159 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 160 }; 161 162 const struct cdevsw wd_cdevsw = { 163 wdopen, wdclose, wdread, wdwrite, wdioctl, 164 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 165 }; 166 167 /* 168 * Glue necessary to hook WDCIOCCOMMAND into physio 169 */ 170 171 struct wd_ioctl { 172 LIST_ENTRY(wd_ioctl) wi_list; 173 struct buf wi_bp; 174 struct uio wi_uio; 175 struct iovec wi_iov; 176 atareq_t wi_atareq; 177 struct wd_softc *wi_softc; 178 }; 179 180 LIST_HEAD(, wd_ioctl) wi_head; 181 182 struct wd_ioctl *wi_find(struct buf *); 183 void wi_free(struct wd_ioctl *); 184 struct wd_ioctl *wi_get(void); 185 void wdioctlstrategy(struct buf *); 186 187 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 188 void wdgetdisklabel(struct wd_softc *); 189 void wdstart(void *); 190 void __wdstart(struct wd_softc*, struct buf *); 191 void wdrestart(void *); 192 void wddone(void *); 193 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 194 static int wd_standby(struct wd_softc *, int); 195 int wd_flushcache(struct wd_softc *, int); 196 197 int wd_getcache(struct wd_softc *, int *); 198 int wd_setcache(struct wd_softc *, int); 199 200 struct dkdriver wddkdriver = { wdstrategy, minphys }; 201 202 #ifdef HAS_BAD144_HANDLING 203 static void bad144intern(struct wd_softc *); 204 #endif 205 206 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 207 #define WD_QUIRK_FORCE_LBA48 0x0002 /* must use LBA48 commands */ 208 209 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 210 211 /* 212 * Quirk table for IDE drives. Put more-specific matches first, since 213 * a simple globbing routine is used for matching. 214 */ 215 static const struct wd_quirk { 216 const char *wdq_match; /* inquiry pattern to match */ 217 int wdq_quirks; /* drive quirks */ 218 } wd_quirk_table[] = { 219 /* 220 * Some Seagate S-ATA drives have a PHY which can get confused 221 * with the way data is packetized by some S-ATA controllers. 222 * 223 * The work-around is to split in two any write transfer whose 224 * sector count % 15 == 1 (assuming 512 byte sectors). 225 * 226 * XXX This is an incomplete list. There are at least a couple 227 * XXX more model numbers. If you have trouble with such transfers 228 * XXX (8K is the most common) on Seagate S-ATA drives, please 229 * XXX notify thorpej (at) NetBSD.org. 230 */ 231 { "ST3120023AS", 232 WD_QUIRK_SPLIT_MOD15_WRITE }, 233 { "ST380023AS", 234 WD_QUIRK_SPLIT_MOD15_WRITE }, 235 236 /* 237 * These seagate drives seems to have issue addressing sector 0xfffffff 238 * (aka LBA48_THRESHOLD) in LBA mode. The workaround is to force 239 * LBA48 240 * Note that we can't just change the code to always use LBA48 for 241 * sector 0xfffffff, because this would break valid and working 242 * setups using LBA48 drives on non-LBA48-capable controllers 243 * (and it's hard to get a list of such controllers) 244 */ 245 { "ST3160021A*", 246 WD_QUIRK_FORCE_LBA48 }, 247 { "ST3160811A*", 248 WD_QUIRK_FORCE_LBA48 }, 249 { "ST3160812A*", 250 WD_QUIRK_FORCE_LBA48 }, 251 { "ST3160023A*", 252 WD_QUIRK_FORCE_LBA48 }, 253 { "ST3160827A*", 254 WD_QUIRK_FORCE_LBA48 }, 255 /* Attempt to catch all seagate drives larger than 200GB */ 256 { "ST3[2-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 257 WD_QUIRK_FORCE_LBA48 }, 258 { "ST3[1-9][0-9][0-9][0-9][0-9][0-9][0-9][A-Z]*", 259 WD_QUIRK_FORCE_LBA48 }, 260 { NULL, 261 0 } 262 }; 263 264 static const struct wd_quirk * 265 wd_lookup_quirks(const char *name) 266 { 267 const struct wd_quirk *wdq; 268 const char *estr; 269 270 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 271 /* 272 * We only want exact matches (which include matches 273 * against globbing characters). 274 */ 275 if (pmatch(name, wdq->wdq_match, &estr) == 2) 276 return (wdq); 277 } 278 return (NULL); 279 } 280 281 int 282 wdprobe(struct device *parent, struct cfdata *match, void *aux) 283 { 284 struct ata_device *adev = aux; 285 286 if (adev == NULL) 287 return 0; 288 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 289 return 0; 290 291 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 292 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 293 return 0; 294 return 1; 295 } 296 297 void 298 wdattach(struct device *parent, struct device *self, void *aux) 299 { 300 struct wd_softc *wd = (void *)self; 301 struct ata_device *adev= aux; 302 int i, blank; 303 char tbuf[41], pbuf[9], c, *p, *q; 304 const struct wd_quirk *wdq; 305 306 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 307 callout_init(&wd->sc_restart_ch, 0); 308 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 309 #ifdef WD_SOFTBADSECT 310 SLIST_INIT(&wd->sc_bslist); 311 #endif 312 wd->atabus = adev->adev_bustype; 313 wd->openings = adev->adev_openings; 314 wd->drvp = adev->adev_drv_data; 315 316 wd->drvp->drv_done = wddone; 317 wd->drvp->drv_softc = &wd->sc_dev; 318 319 aprint_naive("\n"); 320 321 /* read our drive info */ 322 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 323 aprint_error("\n%s: IDENTIFY failed\n", wd->sc_dev.dv_xname); 324 return; 325 } 326 327 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 328 i < sizeof(wd->sc_params.atap_model); i++) { 329 c = *p++; 330 if (c == '\0') 331 break; 332 if (c != ' ') { 333 if (blank) { 334 *q++ = ' '; 335 blank = 0; 336 } 337 *q++ = c; 338 } else 339 blank = 1; 340 } 341 *q++ = '\0'; 342 343 aprint_normal(": <%s>\n", tbuf); 344 345 wdq = wd_lookup_quirks(tbuf); 346 if (wdq != NULL) 347 wd->sc_quirks = wdq->wdq_quirks; 348 349 if (wd->sc_quirks != 0) { 350 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 351 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 352 sbuf, sizeof(sbuf)); 353 aprint_normal("%s: quirks %s\n", wd->sc_dev.dv_xname, sbuf); 354 } 355 356 if ((wd->sc_params.atap_multi & 0xff) > 1) { 357 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 358 } else { 359 wd->sc_multi = 1; 360 } 361 362 aprint_verbose("%s: drive supports %d-sector PIO transfers,", 363 wd->sc_dev.dv_xname, wd->sc_multi); 364 365 /* 48-bit LBA addressing */ 366 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 367 wd->sc_flags |= WDF_LBA48; 368 369 /* Prior to ATA-4, LBA was optional. */ 370 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 371 wd->sc_flags |= WDF_LBA; 372 #if 0 373 /* ATA-4 requires LBA. */ 374 if (wd->sc_params.atap_ataversion != 0xffff && 375 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 376 wd->sc_flags |= WDF_LBA; 377 #endif 378 379 if ((wd->sc_flags & WDF_LBA48) != 0) { 380 aprint_verbose(" LBA48 addressing\n"); 381 wd->sc_capacity = 382 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 383 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 384 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 385 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 386 } else if ((wd->sc_flags & WDF_LBA) != 0) { 387 aprint_verbose(" LBA addressing\n"); 388 wd->sc_capacity = 389 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 390 wd->sc_params.atap_capacity[0]; 391 } else { 392 aprint_verbose(" chs addressing\n"); 393 wd->sc_capacity = 394 wd->sc_params.atap_cylinders * 395 wd->sc_params.atap_heads * 396 wd->sc_params.atap_sectors; 397 } 398 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 399 aprint_normal("%s: %s, %d cyl, %d head, %d sec, " 400 "%d bytes/sect x %llu sectors\n", 401 self->dv_xname, pbuf, 402 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 403 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 404 wd->sc_params.atap_cylinders, 405 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 406 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 407 408 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 409 self->dv_xname, wd->sc_params.atap_dmatiming_mimi, 410 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 411 /* 412 * Initialize and attach the disk structure. 413 */ 414 /* we fill in dk_info later */ 415 disk_init(&wd->sc_dk, wd->sc_dev.dv_xname, &wddkdriver); 416 disk_attach(&wd->sc_dk); 417 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 418 #if NRND > 0 419 rnd_attach_source(&wd->rnd_source, wd->sc_dev.dv_xname, 420 RND_TYPE_DISK, 0); 421 #endif 422 423 /* Discover wedges on this disk. */ 424 dkwedge_discover(&wd->sc_dk); 425 426 if (!pmf_device_register(self, wd_suspend, NULL)) 427 aprint_error_dev(self, "couldn't establish power handler\n"); 428 } 429 430 static bool 431 wd_suspend(device_t dv) 432 { 433 struct wd_softc *sc = device_private(dv); 434 435 wd_flushcache(sc, AT_WAIT | AT_POLL); 436 wd_standby(sc, AT_WAIT | AT_POLL); 437 438 return true; 439 } 440 441 int 442 wdactivate(struct device *self, enum devact act) 443 { 444 int rv = 0; 445 446 switch (act) { 447 case DVACT_ACTIVATE: 448 rv = EOPNOTSUPP; 449 break; 450 451 case DVACT_DEACTIVATE: 452 /* 453 * Nothing to do; we key off the device's DVF_ACTIVATE. 454 */ 455 break; 456 } 457 return (rv); 458 } 459 460 int 461 wddetach(struct device *self, int flags) 462 { 463 struct wd_softc *sc = (struct wd_softc *)self; 464 int s, bmaj, cmaj, i, mn; 465 466 /* locate the major number */ 467 bmaj = bdevsw_lookup_major(&wd_bdevsw); 468 cmaj = cdevsw_lookup_major(&wd_cdevsw); 469 470 /* Nuke the vnodes for any open instances. */ 471 for (i = 0; i < MAXPARTITIONS; i++) { 472 mn = WDMINOR(device_unit(self), i); 473 vdevgone(bmaj, mn, mn, VBLK); 474 vdevgone(cmaj, mn, mn, VCHR); 475 } 476 477 /* Delete all of our wedges. */ 478 dkwedge_delall(&sc->sc_dk); 479 480 s = splbio(); 481 482 /* Kill off any queued buffers. */ 483 bufq_drain(sc->sc_q); 484 485 bufq_free(sc->sc_q); 486 sc->atabus->ata_killpending(sc->drvp); 487 488 splx(s); 489 490 /* Detach disk. */ 491 disk_detach(&sc->sc_dk); 492 493 #ifdef WD_SOFTBADSECT 494 /* Clean out the bad sector list */ 495 while (!SLIST_EMPTY(&sc->sc_bslist)) { 496 void *head = SLIST_FIRST(&sc->sc_bslist); 497 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 498 free(head, M_TEMP); 499 } 500 sc->sc_bscount = 0; 501 #endif 502 503 pmf_device_deregister(self); 504 505 #if NRND > 0 506 /* Unhook the entropy source. */ 507 rnd_detach_source(&sc->rnd_source); 508 #endif 509 510 sc->drvp->drive_flags = 0; /* no drive any more here */ 511 512 return (0); 513 } 514 515 /* 516 * Read/write routine for a buffer. Validates the arguments and schedules the 517 * transfer. Does not wait for the transfer to complete. 518 */ 519 void 520 wdstrategy(struct buf *bp) 521 { 522 struct wd_softc *wd = device_lookup(&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", wd->sc_dev.dv_xname), 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", wd->sc_dev.dv_xname), 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 = wd_cd.cd_devs[DISKUNIT(obp->b_dev)]; 642 643 if (__predict_false(bp->b_error != 0)) { 644 /* 645 * Propagate the error. If this was the first half of 646 * the original transfer, make sure to account for that 647 * in the residual. 648 */ 649 if (bp->b_data == obp->b_data) 650 bp->b_resid += bp->b_bcount; 651 goto done; 652 } 653 654 /* 655 * If this was the second half of the transfer, we're all done! 656 */ 657 if (bp->b_data != obp->b_data) 658 goto done; 659 660 /* 661 * Advance the pointer to the second half and issue that command 662 * using the same opening. 663 */ 664 bp->b_flags = obp->b_flags | B_CALL; 665 bp->b_data = (char *)bp->b_data + bp->b_bcount; 666 bp->b_blkno += (bp->b_bcount / 512); 667 bp->b_rawblkno += (bp->b_bcount / 512); 668 __wdstart(sc, bp); 669 return; 670 671 done: 672 obp->b_error = bp->b_error; 673 obp->b_resid = bp->b_resid; 674 putiobuf(bp); 675 biodone(obp); 676 sc->openings++; 677 /* wddone() will call wdstart() */ 678 } 679 680 void 681 __wdstart(struct wd_softc *wd, struct buf *bp) 682 { 683 684 /* 685 * Deal with the "split mod15 write" quirk. We just divide the 686 * transfer in two, doing the first half and then then second half 687 * with the same command opening. 688 * 689 * Note we MUST do this here, because we can't let insertion 690 * into the bufq cause the transfers to be re-merged. 691 */ 692 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 693 (bp->b_flags & B_READ) == 0 && 694 bp->b_bcount > 512 && 695 ((bp->b_bcount / 512) % 15) == 1)) { 696 struct buf *nbp; 697 698 /* already at splbio */ 699 nbp = getiobuf_nowait(); 700 if (__predict_false(nbp == NULL)) { 701 /* No memory -- fail the iop. */ 702 bp->b_error = ENOMEM; 703 bp->b_resid = bp->b_bcount; 704 biodone(bp); 705 wd->openings++; 706 return; 707 } 708 709 nbp->b_error = 0; 710 nbp->b_proc = bp->b_proc; 711 nbp->b_vp = NULLVP; 712 nbp->b_dev = bp->b_dev; 713 714 nbp->b_bcount = bp->b_bcount / 2; 715 nbp->b_bufsize = bp->b_bcount / 2; 716 nbp->b_data = bp->b_data; 717 718 nbp->b_blkno = bp->b_blkno; 719 nbp->b_rawblkno = bp->b_rawblkno; 720 721 nbp->b_flags = bp->b_flags | B_CALL; 722 nbp->b_iodone = wd_split_mod15_write; 723 724 /* Put ptr to orig buf in b_private and use new buf */ 725 nbp->b_private = bp; 726 727 BIO_COPYPRIO(nbp, bp); 728 729 bp = nbp; 730 } 731 732 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 733 wd->sc_wdc_bio.blkdone =0; 734 wd->sc_bp = bp; 735 /* 736 * If we're retrying, retry in single-sector mode. This will give us 737 * the sector number of the problem, and will eventually allow the 738 * transfer to succeed. 739 */ 740 if (wd->retries >= WDIORETRIES_SINGLE) 741 wd->sc_wdc_bio.flags = ATA_SINGLE; 742 else 743 wd->sc_wdc_bio.flags = 0; 744 if (wd->sc_flags & WDF_LBA48 && 745 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 746 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 747 wd->sc_wdc_bio.flags |= ATA_LBA48; 748 if (wd->sc_flags & WDF_LBA) 749 wd->sc_wdc_bio.flags |= ATA_LBA; 750 if (bp->b_flags & B_READ) 751 wd->sc_wdc_bio.flags |= ATA_READ; 752 wd->sc_wdc_bio.bcount = bp->b_bcount; 753 wd->sc_wdc_bio.databuf = bp->b_data; 754 /* Instrumentation. */ 755 disk_busy(&wd->sc_dk); 756 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 757 case ATACMD_TRY_AGAIN: 758 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 759 break; 760 case ATACMD_QUEUED: 761 case ATACMD_COMPLETE: 762 break; 763 default: 764 panic("__wdstart: bad return code from ata_bio()"); 765 } 766 } 767 768 void 769 wddone(void *v) 770 { 771 struct wd_softc *wd = v; 772 struct buf *bp = wd->sc_bp; 773 const char *errmsg; 774 int do_perror = 0; 775 int nblks; 776 777 ATADEBUG_PRINT(("wddone %s\n", wd->sc_dev.dv_xname), 778 DEBUG_XFERS); 779 if (bp == NULL) 780 return; 781 bp->b_resid = wd->sc_wdc_bio.bcount; 782 switch (wd->sc_wdc_bio.error) { 783 case ERR_DMA: 784 errmsg = "DMA error"; 785 goto retry; 786 case ERR_DF: 787 errmsg = "device fault"; 788 goto retry; 789 case TIMEOUT: 790 errmsg = "device timeout"; 791 goto retry; 792 case ERR_RESET: 793 errmsg = "channel reset"; 794 goto retry2; 795 case ERROR: 796 /* Don't care about media change bits */ 797 if (wd->sc_wdc_bio.r_error != 0 && 798 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 799 goto noerror; 800 errmsg = "error"; 801 do_perror = 1; 802 if (wd->sc_wdc_bio.r_error & WDCE_IDNF && 803 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 804 nblks = wd->sc_wdc_bio.bcount / 805 wd->sc_dk.dk_label->d_secsize; 806 /* 807 * If we get a "id not found" when crossing the 808 * LBA48_THRESHOLD, and the drive is larger than 809 * 128GB, then we can assume the drive has the 810 * LBA48 bug and we switch to LBA48. 811 */ 812 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 813 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 814 wd->sc_capacity > LBA48_THRESHOLD + 1) { 815 errmsg = "LBA48 bug"; 816 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 817 do_perror = 0; 818 goto retry2; 819 } 820 } 821 retry: /* Just reset and retry. Can we do more ? */ 822 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 823 retry2: 824 diskerr(bp, "wd", errmsg, LOG_PRINTF, 825 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 826 if (wd->retries < WDIORETRIES) 827 printf(", retrying"); 828 printf("\n"); 829 if (do_perror) 830 wdperror(wd); 831 if (wd->retries < WDIORETRIES) { 832 wd->retries++; 833 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 834 wdrestart, wd); 835 return; 836 } 837 838 #ifdef WD_SOFTBADSECT 839 /* 840 * Not all errors indicate a failed block but those that do, 841 * put the block on the bad-block list for the device. Only 842 * do this for reads because the drive should do it for writes, 843 * itself, according to Manuel. 844 */ 845 if ((bp->b_flags & B_READ) && 846 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 847 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 848 struct disk_badsectors *dbs; 849 850 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 851 dbs->dbs_min = bp->b_rawblkno; 852 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 853 microtime(&dbs->dbs_failedat); 854 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 855 wd->sc_bscount++; 856 } 857 #endif 858 bp->b_error = EIO; 859 break; 860 case NOERROR: 861 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 862 printf("%s: soft error (corrected)\n", 863 wd->sc_dev.dv_xname); 864 break; 865 case ERR_NODEV: 866 bp->b_error = EIO; 867 break; 868 } 869 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 870 (bp->b_flags & B_READ)); 871 #if NRND > 0 872 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 873 #endif 874 /* XXX Yuck, but we don't want to increment openings in this case */ 875 if (__predict_false((bp->b_flags & B_CALL) != 0 && 876 bp->b_iodone == wd_split_mod15_write)) 877 biodone(bp); 878 else { 879 biodone(bp); 880 wd->openings++; 881 } 882 wdstart(wd); 883 } 884 885 void 886 wdrestart(void *v) 887 { 888 struct wd_softc *wd = v; 889 struct buf *bp = wd->sc_bp; 890 int s; 891 892 ATADEBUG_PRINT(("wdrestart %s\n", wd->sc_dev.dv_xname), 893 DEBUG_XFERS); 894 s = splbio(); 895 __wdstart(v, bp); 896 splx(s); 897 } 898 899 int 900 wdread(dev_t dev, struct uio *uio, int flags) 901 { 902 903 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 904 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 905 } 906 907 int 908 wdwrite(dev_t dev, struct uio *uio, int flags) 909 { 910 911 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 912 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 913 } 914 915 int 916 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 917 { 918 struct wd_softc *wd; 919 int part, error; 920 921 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 922 wd = device_lookup(&wd_cd, WDUNIT(dev)); 923 if (wd == NULL) 924 return (ENXIO); 925 926 if (! device_is_active(&wd->sc_dev)) 927 return (ENODEV); 928 929 part = WDPART(dev); 930 931 mutex_enter(&wd->sc_dk.dk_openlock); 932 933 /* 934 * If there are wedges, and this is not RAW_PART, then we 935 * need to fail. 936 */ 937 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 938 error = EBUSY; 939 goto bad1; 940 } 941 942 /* 943 * If this is the first open of this device, add a reference 944 * to the adapter. 945 */ 946 if (wd->sc_dk.dk_openmask == 0 && 947 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 948 goto bad1; 949 950 if (wd->sc_dk.dk_openmask != 0) { 951 /* 952 * If any partition is open, but the disk has been invalidated, 953 * disallow further opens. 954 */ 955 if ((wd->sc_flags & WDF_LOADED) == 0) { 956 error = EIO; 957 goto bad2; 958 } 959 } else { 960 if ((wd->sc_flags & WDF_LOADED) == 0) { 961 wd->sc_flags |= WDF_LOADED; 962 963 /* Load the physical device parameters. */ 964 wd_get_params(wd, AT_WAIT, &wd->sc_params); 965 966 /* Load the partition info if not already loaded. */ 967 wdgetdisklabel(wd); 968 } 969 } 970 971 /* Check that the partition exists. */ 972 if (part != RAW_PART && 973 (part >= wd->sc_dk.dk_label->d_npartitions || 974 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 975 error = ENXIO; 976 goto bad2; 977 } 978 979 /* Insure only one open at a time. */ 980 switch (fmt) { 981 case S_IFCHR: 982 wd->sc_dk.dk_copenmask |= (1 << part); 983 break; 984 case S_IFBLK: 985 wd->sc_dk.dk_bopenmask |= (1 << part); 986 break; 987 } 988 wd->sc_dk.dk_openmask = 989 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 990 991 mutex_exit(&wd->sc_dk.dk_openlock); 992 return 0; 993 994 bad2: 995 if (wd->sc_dk.dk_openmask == 0) 996 wd->atabus->ata_delref(wd->drvp); 997 bad1: 998 mutex_exit(&wd->sc_dk.dk_openlock); 999 return error; 1000 } 1001 1002 int 1003 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1004 { 1005 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1006 int part = WDPART(dev); 1007 1008 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1009 1010 mutex_enter(&wd->sc_dk.dk_openlock); 1011 1012 switch (fmt) { 1013 case S_IFCHR: 1014 wd->sc_dk.dk_copenmask &= ~(1 << part); 1015 break; 1016 case S_IFBLK: 1017 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1018 break; 1019 } 1020 wd->sc_dk.dk_openmask = 1021 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1022 1023 if (wd->sc_dk.dk_openmask == 0) { 1024 wd_flushcache(wd, AT_WAIT); 1025 1026 if (! (wd->sc_flags & WDF_KLABEL)) 1027 wd->sc_flags &= ~WDF_LOADED; 1028 1029 wd->atabus->ata_delref(wd->drvp); 1030 } 1031 1032 mutex_exit(&wd->sc_dk.dk_openlock); 1033 return 0; 1034 } 1035 1036 void 1037 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1038 { 1039 1040 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1041 memset(lp, 0, sizeof(struct disklabel)); 1042 1043 lp->d_secsize = DEV_BSIZE; 1044 lp->d_ntracks = wd->sc_params.atap_heads; 1045 lp->d_nsectors = wd->sc_params.atap_sectors; 1046 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1047 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1048 wd->sc_params.atap_cylinders; 1049 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1050 1051 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1052 lp->d_type = DTYPE_ST506; 1053 else 1054 lp->d_type = DTYPE_ESDI; 1055 1056 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1057 strncpy(lp->d_packname, "fictitious", 16); 1058 if (wd->sc_capacity > UINT32_MAX) 1059 lp->d_secperunit = UINT32_MAX; 1060 else 1061 lp->d_secperunit = wd->sc_capacity; 1062 lp->d_rpm = 3600; 1063 lp->d_interleave = 1; 1064 lp->d_flags = 0; 1065 1066 lp->d_partitions[RAW_PART].p_offset = 0; 1067 lp->d_partitions[RAW_PART].p_size = 1068 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1069 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1070 lp->d_npartitions = RAW_PART + 1; 1071 1072 lp->d_magic = DISKMAGIC; 1073 lp->d_magic2 = DISKMAGIC; 1074 lp->d_checksum = dkcksum(lp); 1075 } 1076 1077 /* 1078 * Fabricate a default disk label, and try to read the correct one. 1079 */ 1080 void 1081 wdgetdisklabel(struct wd_softc *wd) 1082 { 1083 struct disklabel *lp = wd->sc_dk.dk_label; 1084 const char *errstring; 1085 int s; 1086 1087 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1088 1089 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1090 1091 wdgetdefaultlabel(wd, lp); 1092 1093 wd->sc_badsect[0] = -1; 1094 1095 if (wd->drvp->state > RESET) { 1096 s = splbio(); 1097 wd->drvp->drive_flags |= DRIVE_RESET; 1098 splx(s); 1099 } 1100 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1101 RAW_PART), wdstrategy, lp, 1102 wd->sc_dk.dk_cpulabel); 1103 if (errstring) { 1104 /* 1105 * This probably happened because the drive's default 1106 * geometry doesn't match the DOS geometry. We 1107 * assume the DOS geometry is now in the label and try 1108 * again. XXX This is a kluge. 1109 */ 1110 if (wd->drvp->state > RESET) { 1111 s = splbio(); 1112 wd->drvp->drive_flags |= DRIVE_RESET; 1113 splx(s); 1114 } 1115 errstring = readdisklabel(MAKEWDDEV(0, device_unit(&wd->sc_dev), 1116 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1117 } 1118 if (errstring) { 1119 printf("%s: %s\n", wd->sc_dev.dv_xname, errstring); 1120 return; 1121 } 1122 1123 if (wd->drvp->state > RESET) { 1124 s = splbio(); 1125 wd->drvp->drive_flags |= DRIVE_RESET; 1126 splx(s); 1127 } 1128 #ifdef HAS_BAD144_HANDLING 1129 if ((lp->d_flags & D_BADSECT) != 0) 1130 bad144intern(wd); 1131 #endif 1132 } 1133 1134 void 1135 wdperror(const struct wd_softc *wd) 1136 { 1137 static const char *const errstr0_3[] = {"address mark not found", 1138 "track 0 not found", "aborted command", "media change requested", 1139 "id not found", "media changed", "uncorrectable data error", 1140 "bad block detected"}; 1141 static const char *const errstr4_5[] = { 1142 "obsolete (address mark not found)", 1143 "no media/write protected", "aborted command", 1144 "media change requested", "id not found", "media changed", 1145 "uncorrectable data error", "interface CRC error"}; 1146 const char *const *errstr; 1147 int i; 1148 const char *sep = ""; 1149 1150 const char *devname = wd->sc_dev.dv_xname; 1151 struct ata_drive_datas *drvp = wd->drvp; 1152 int errno = wd->sc_wdc_bio.r_error; 1153 1154 if (drvp->ata_vers >= 4) 1155 errstr = errstr4_5; 1156 else 1157 errstr = errstr0_3; 1158 1159 printf("%s: (", devname); 1160 1161 if (errno == 0) 1162 printf("error not notified"); 1163 1164 for (i = 0; i < 8; i++) { 1165 if (errno & (1 << i)) { 1166 printf("%s%s", sep, errstr[i]); 1167 sep = ", "; 1168 } 1169 } 1170 printf(")\n"); 1171 } 1172 1173 int 1174 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1175 { 1176 struct wd_softc *wd = device_lookup(&wd_cd, WDUNIT(dev)); 1177 int error = 0, s; 1178 #ifdef __HAVE_OLD_DISKLABEL 1179 struct disklabel *newlabel = NULL; 1180 #endif 1181 1182 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1183 1184 if ((wd->sc_flags & WDF_LOADED) == 0) 1185 return EIO; 1186 1187 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1188 if (error != EPASSTHROUGH) 1189 return (error); 1190 1191 switch (xfer) { 1192 #ifdef HAS_BAD144_HANDLING 1193 case DIOCSBAD: 1194 if ((flag & FWRITE) == 0) 1195 return EBADF; 1196 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1197 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1198 bad144intern(wd); 1199 return 0; 1200 #endif 1201 #ifdef WD_SOFTBADSECT 1202 case DIOCBSLIST : 1203 { 1204 u_int32_t count, missing, skip; 1205 struct disk_badsecinfo dbsi; 1206 struct disk_badsectors *dbs; 1207 size_t available; 1208 uint8_t *laddr; 1209 1210 dbsi = *(struct disk_badsecinfo *)addr; 1211 missing = wd->sc_bscount; 1212 count = 0; 1213 available = dbsi.dbsi_bufsize; 1214 skip = dbsi.dbsi_skip; 1215 laddr = (uint8_t *)dbsi.dbsi_buffer; 1216 1217 /* 1218 * We start this loop with the expectation that all of the 1219 * entries will be missed and decrement this counter each 1220 * time we either skip over one (already copied out) or 1221 * we actually copy it back to user space. The structs 1222 * holding the bad sector information are copied directly 1223 * back to user space whilst the summary is returned via 1224 * the struct passed in via the ioctl. 1225 */ 1226 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1227 if (skip > 0) { 1228 missing--; 1229 skip--; 1230 continue; 1231 } 1232 if (available < sizeof(*dbs)) 1233 break; 1234 available -= sizeof(*dbs); 1235 copyout(dbs, laddr, sizeof(*dbs)); 1236 laddr += sizeof(*dbs); 1237 missing--; 1238 count++; 1239 } 1240 dbsi.dbsi_left = missing; 1241 dbsi.dbsi_copied = count; 1242 *(struct disk_badsecinfo *)addr = dbsi; 1243 return 0; 1244 } 1245 1246 case DIOCBSFLUSH : 1247 /* Clean out the bad sector list */ 1248 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1249 void *head = SLIST_FIRST(&wd->sc_bslist); 1250 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1251 free(head, M_TEMP); 1252 } 1253 wd->sc_bscount = 0; 1254 return 0; 1255 #endif 1256 case DIOCGDINFO: 1257 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1258 return 0; 1259 #ifdef __HAVE_OLD_DISKLABEL 1260 case ODIOCGDINFO: 1261 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1262 if (newlabel == NULL) 1263 return EIO; 1264 *newlabel = *(wd->sc_dk.dk_label); 1265 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1266 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1267 else 1268 error = ENOTTY; 1269 free(newlabel, M_TEMP); 1270 return error; 1271 #endif 1272 1273 case DIOCGPART: 1274 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1275 ((struct partinfo *)addr)->part = 1276 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1277 return 0; 1278 1279 case DIOCWDINFO: 1280 case DIOCSDINFO: 1281 #ifdef __HAVE_OLD_DISKLABEL 1282 case ODIOCWDINFO: 1283 case ODIOCSDINFO: 1284 #endif 1285 { 1286 struct disklabel *lp; 1287 1288 if ((flag & FWRITE) == 0) 1289 return EBADF; 1290 1291 #ifdef __HAVE_OLD_DISKLABEL 1292 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1293 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1294 if (newlabel == NULL) 1295 return EIO; 1296 memset(newlabel, 0, sizeof newlabel); 1297 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1298 lp = newlabel; 1299 } else 1300 #endif 1301 lp = (struct disklabel *)addr; 1302 1303 mutex_enter(&wd->sc_dk.dk_openlock); 1304 wd->sc_flags |= WDF_LABELLING; 1305 1306 error = setdisklabel(wd->sc_dk.dk_label, 1307 lp, /*wd->sc_dk.dk_openmask : */0, 1308 wd->sc_dk.dk_cpulabel); 1309 if (error == 0) { 1310 if (wd->drvp->state > RESET) { 1311 s = splbio(); 1312 wd->drvp->drive_flags |= DRIVE_RESET; 1313 splx(s); 1314 } 1315 if (xfer == DIOCWDINFO 1316 #ifdef __HAVE_OLD_DISKLABEL 1317 || xfer == ODIOCWDINFO 1318 #endif 1319 ) 1320 error = writedisklabel(WDLABELDEV(dev), 1321 wdstrategy, wd->sc_dk.dk_label, 1322 wd->sc_dk.dk_cpulabel); 1323 } 1324 1325 wd->sc_flags &= ~WDF_LABELLING; 1326 mutex_exit(&wd->sc_dk.dk_openlock); 1327 #ifdef __HAVE_OLD_DISKLABEL 1328 if (newlabel != NULL) 1329 free(newlabel, M_TEMP); 1330 #endif 1331 return error; 1332 } 1333 1334 case DIOCKLABEL: 1335 if (*(int *)addr) 1336 wd->sc_flags |= WDF_KLABEL; 1337 else 1338 wd->sc_flags &= ~WDF_KLABEL; 1339 return 0; 1340 1341 case DIOCWLABEL: 1342 if ((flag & FWRITE) == 0) 1343 return EBADF; 1344 if (*(int *)addr) 1345 wd->sc_flags |= WDF_WLABEL; 1346 else 1347 wd->sc_flags &= ~WDF_WLABEL; 1348 return 0; 1349 1350 case DIOCGDEFLABEL: 1351 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1352 return 0; 1353 #ifdef __HAVE_OLD_DISKLABEL 1354 case ODIOCGDEFLABEL: 1355 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1356 if (newlabel == NULL) 1357 return EIO; 1358 wdgetdefaultlabel(wd, newlabel); 1359 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1360 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1361 else 1362 error = ENOTTY; 1363 free(newlabel, M_TEMP); 1364 return error; 1365 #endif 1366 1367 #ifdef notyet 1368 case DIOCWFORMAT: 1369 if ((flag & FWRITE) == 0) 1370 return EBADF; 1371 { 1372 register struct format_op *fop; 1373 struct iovec aiov; 1374 struct uio auio; 1375 1376 fop = (struct format_op *)addr; 1377 aiov.iov_base = fop->df_buf; 1378 aiov.iov_len = fop->df_count; 1379 auio.uio_iov = &aiov; 1380 auio.uio_iovcnt = 1; 1381 auio.uio_resid = fop->df_count; 1382 auio.uio_offset = 1383 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1384 auio.uio_vmspace = l->l_proc->p_vmspace; 1385 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1386 &auio); 1387 fop->df_count -= auio.uio_resid; 1388 fop->df_reg[0] = wdc->sc_status; 1389 fop->df_reg[1] = wdc->sc_error; 1390 return error; 1391 } 1392 #endif 1393 case DIOCGCACHE: 1394 return wd_getcache(wd, (int *)addr); 1395 1396 case DIOCSCACHE: 1397 return wd_setcache(wd, *(int *)addr); 1398 1399 case DIOCCACHESYNC: 1400 return wd_flushcache(wd, AT_WAIT); 1401 1402 case ATAIOCCOMMAND: 1403 /* 1404 * Make sure this command is (relatively) safe first 1405 */ 1406 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1407 (flag & FWRITE) == 0) 1408 return (EBADF); 1409 { 1410 struct wd_ioctl *wi; 1411 atareq_t *atareq = (atareq_t *) addr; 1412 int error1; 1413 1414 wi = wi_get(); 1415 wi->wi_softc = wd; 1416 wi->wi_atareq = *atareq; 1417 1418 if (atareq->datalen && atareq->flags & 1419 (ATACMD_READ | ATACMD_WRITE)) { 1420 void *tbuf; 1421 if (atareq->datalen < DEV_BSIZE 1422 && atareq->command == WDCC_IDENTIFY) { 1423 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1424 wi->wi_iov.iov_base = tbuf; 1425 wi->wi_iov.iov_len = DEV_BSIZE; 1426 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1427 } else { 1428 tbuf = NULL; 1429 wi->wi_iov.iov_base = atareq->databuf; 1430 wi->wi_iov.iov_len = atareq->datalen; 1431 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1432 } 1433 wi->wi_uio.uio_iov = &wi->wi_iov; 1434 wi->wi_uio.uio_iovcnt = 1; 1435 wi->wi_uio.uio_resid = atareq->datalen; 1436 wi->wi_uio.uio_offset = 0; 1437 wi->wi_uio.uio_rw = 1438 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1439 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1440 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1441 minphys, &wi->wi_uio); 1442 if (tbuf != NULL && error1 == 0) { 1443 error1 = copyout(tbuf, atareq->databuf, 1444 atareq->datalen); 1445 free(tbuf, M_TEMP); 1446 } 1447 } else { 1448 /* No need to call physio if we don't have any 1449 user data */ 1450 wi->wi_bp.b_flags = 0; 1451 wi->wi_bp.b_data = 0; 1452 wi->wi_bp.b_bcount = 0; 1453 wi->wi_bp.b_dev = 0; 1454 wi->wi_bp.b_proc = l->l_proc; 1455 wdioctlstrategy(&wi->wi_bp); 1456 error1 = wi->wi_bp.b_error; 1457 } 1458 *atareq = wi->wi_atareq; 1459 wi_free(wi); 1460 return(error1); 1461 } 1462 1463 case DIOCAWEDGE: 1464 { 1465 struct dkwedge_info *dkw = (void *) addr; 1466 1467 if ((flag & FWRITE) == 0) 1468 return (EBADF); 1469 1470 /* If the ioctl happens here, the parent is us. */ 1471 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1472 return (dkwedge_add(dkw)); 1473 } 1474 1475 case DIOCDWEDGE: 1476 { 1477 struct dkwedge_info *dkw = (void *) addr; 1478 1479 if ((flag & FWRITE) == 0) 1480 return (EBADF); 1481 1482 /* If the ioctl happens here, the parent is us. */ 1483 strcpy(dkw->dkw_parent, wd->sc_dev.dv_xname); 1484 return (dkwedge_del(dkw)); 1485 } 1486 1487 case DIOCLWEDGES: 1488 { 1489 struct dkwedge_list *dkwl = (void *) addr; 1490 1491 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1492 } 1493 1494 case DIOCGSTRATEGY: 1495 { 1496 struct disk_strategy *dks = (void *)addr; 1497 1498 s = splbio(); 1499 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1500 sizeof(dks->dks_name)); 1501 splx(s); 1502 dks->dks_paramlen = 0; 1503 1504 return 0; 1505 } 1506 1507 case DIOCSSTRATEGY: 1508 { 1509 struct disk_strategy *dks = (void *)addr; 1510 struct bufq_state *new; 1511 struct bufq_state *old; 1512 1513 if ((flag & FWRITE) == 0) { 1514 return EBADF; 1515 } 1516 if (dks->dks_param != NULL) { 1517 return EINVAL; 1518 } 1519 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1520 error = bufq_alloc(&new, dks->dks_name, 1521 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1522 if (error) { 1523 return error; 1524 } 1525 s = splbio(); 1526 old = wd->sc_q; 1527 bufq_move(new, old); 1528 wd->sc_q = new; 1529 splx(s); 1530 bufq_free(old); 1531 1532 return 0; 1533 } 1534 1535 default: 1536 return ENOTTY; 1537 } 1538 1539 #ifdef DIAGNOSTIC 1540 panic("wdioctl: impossible"); 1541 #endif 1542 } 1543 1544 #ifdef B_FORMAT 1545 int 1546 wdformat(struct buf *bp) 1547 { 1548 1549 bp->b_flags |= B_FORMAT; 1550 return wdstrategy(bp); 1551 } 1552 #endif 1553 1554 int 1555 wdsize(dev_t dev) 1556 { 1557 struct wd_softc *wd; 1558 int part, omask; 1559 int size; 1560 1561 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1562 1563 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1564 if (wd == NULL) 1565 return (-1); 1566 1567 part = WDPART(dev); 1568 omask = wd->sc_dk.dk_openmask & (1 << part); 1569 1570 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1571 return (-1); 1572 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1573 size = -1; 1574 else 1575 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1576 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1577 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1578 return (-1); 1579 return (size); 1580 } 1581 1582 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1583 static int wddoingadump = 0; 1584 static int wddumprecalibrated = 0; 1585 1586 /* 1587 * Dump core after a system crash. 1588 */ 1589 int 1590 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1591 { 1592 struct wd_softc *wd; /* disk unit to do the I/O */ 1593 struct disklabel *lp; /* disk's disklabel */ 1594 int part, err; 1595 int nblks; /* total number of sectors left to write */ 1596 1597 /* Check if recursive dump; if so, punt. */ 1598 if (wddoingadump) 1599 return EFAULT; 1600 wddoingadump = 1; 1601 1602 wd = device_lookup(&wd_cd, WDUNIT(dev)); 1603 if (wd == NULL) 1604 return (ENXIO); 1605 1606 part = WDPART(dev); 1607 1608 /* Convert to disk sectors. Request must be a multiple of size. */ 1609 lp = wd->sc_dk.dk_label; 1610 if ((size % lp->d_secsize) != 0) 1611 return EFAULT; 1612 nblks = size / lp->d_secsize; 1613 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1614 1615 /* Check transfer bounds against partition size. */ 1616 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1617 return EINVAL; 1618 1619 /* Offset block number to start of partition. */ 1620 blkno += lp->d_partitions[part].p_offset; 1621 1622 /* Recalibrate, if first dump transfer. */ 1623 if (wddumprecalibrated == 0) { 1624 wddumprecalibrated = 1; 1625 (*wd->atabus->ata_reset_drive)(wd->drvp, 1626 AT_POLL | AT_RST_EMERG); 1627 wd->drvp->state = RESET; 1628 } 1629 1630 wd->sc_bp = NULL; 1631 wd->sc_wdc_bio.blkno = blkno; 1632 wd->sc_wdc_bio.flags = ATA_POLL; 1633 if (wd->sc_flags & WDF_LBA48 && 1634 (blkno > LBA48_THRESHOLD || 1635 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1636 wd->sc_wdc_bio.flags |= ATA_LBA48; 1637 if (wd->sc_flags & WDF_LBA) 1638 wd->sc_wdc_bio.flags |= ATA_LBA; 1639 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1640 wd->sc_wdc_bio.databuf = va; 1641 #ifndef WD_DUMP_NOT_TRUSTED 1642 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1643 case ATACMD_TRY_AGAIN: 1644 panic("wddump: try again"); 1645 break; 1646 case ATACMD_QUEUED: 1647 panic("wddump: polled command has been queued"); 1648 break; 1649 case ATACMD_COMPLETE: 1650 break; 1651 } 1652 switch(wd->sc_wdc_bio.error) { 1653 case TIMEOUT: 1654 printf("wddump: device timed out"); 1655 err = EIO; 1656 break; 1657 case ERR_DF: 1658 printf("wddump: drive fault"); 1659 err = EIO; 1660 break; 1661 case ERR_DMA: 1662 printf("wddump: DMA error"); 1663 err = EIO; 1664 break; 1665 case ERROR: 1666 printf("wddump: "); 1667 wdperror(wd); 1668 err = EIO; 1669 break; 1670 case NOERROR: 1671 err = 0; 1672 break; 1673 default: 1674 panic("wddump: unknown error type"); 1675 } 1676 if (err != 0) { 1677 printf("\n"); 1678 return err; 1679 } 1680 #else /* WD_DUMP_NOT_TRUSTED */ 1681 /* Let's just talk about this first... */ 1682 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1683 unit, va, cylin, head, sector); 1684 delay(500 * 1000); /* half a second */ 1685 #endif 1686 1687 wddoingadump = 0; 1688 return 0; 1689 } 1690 1691 #ifdef HAS_BAD144_HANDLING 1692 /* 1693 * Internalize the bad sector table. 1694 */ 1695 void 1696 bad144intern(struct wd_softc *wd) 1697 { 1698 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1699 struct disklabel *lp = wd->sc_dk.dk_label; 1700 int i = 0; 1701 1702 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1703 1704 for (; i < NBT_BAD; i++) { 1705 if (bt->bt_bad[i].bt_cyl == 0xffff) 1706 break; 1707 wd->sc_badsect[i] = 1708 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1709 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1710 (bt->bt_bad[i].bt_trksec & 0xff); 1711 } 1712 for (; i < NBT_BAD+1; i++) 1713 wd->sc_badsect[i] = -1; 1714 } 1715 #endif 1716 1717 static void 1718 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1719 { 1720 prop_dictionary_t disk_info, odisk_info, geom; 1721 const char *cp; 1722 1723 disk_info = prop_dictionary_create(); 1724 1725 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1726 cp = "ST506"; 1727 else { 1728 /* XXX Should have a case for ATA here, too. */ 1729 cp = "ESDI"; 1730 } 1731 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1732 1733 geom = prop_dictionary_create(); 1734 1735 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1736 1737 prop_dictionary_set_uint32(geom, "sector-size", 1738 DEV_BSIZE /* XXX 512? */); 1739 1740 prop_dictionary_set_uint16(geom, "sectors-per-track", 1741 wd->sc_params.atap_sectors); 1742 1743 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1744 wd->sc_params.atap_heads); 1745 1746 if (wd->sc_flags & WDF_LBA) 1747 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1748 wd->sc_capacity / 1749 (wd->sc_params.atap_heads * 1750 wd->sc_params.atap_sectors)); 1751 else 1752 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1753 wd->sc_params.atap_cylinders); 1754 1755 prop_dictionary_set(disk_info, "geometry", geom); 1756 prop_object_release(geom); 1757 1758 prop_dictionary_set(device_properties(&wd->sc_dev), 1759 "disk-info", disk_info); 1760 1761 /* 1762 * Don't release disk_info here; we keep a reference to it. 1763 * disk_detach() will release it when we go away. 1764 */ 1765 1766 odisk_info = wd->sc_dk.dk_info; 1767 wd->sc_dk.dk_info = disk_info; 1768 if (odisk_info) 1769 prop_object_release(odisk_info); 1770 } 1771 1772 int 1773 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1774 { 1775 1776 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1777 case CMD_AGAIN: 1778 return 1; 1779 case CMD_ERR: 1780 /* 1781 * We `know' there's a drive here; just assume it's old. 1782 * This geometry is only used to read the MBR and print a 1783 * (false) attach message. 1784 */ 1785 strncpy(params->atap_model, "ST506", 1786 sizeof params->atap_model); 1787 params->atap_config = ATA_CFG_FIXED; 1788 params->atap_cylinders = 1024; 1789 params->atap_heads = 8; 1790 params->atap_sectors = 17; 1791 params->atap_multi = 1; 1792 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1793 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1794 /* FALLTHROUGH */ 1795 case CMD_OK: 1796 wd_params_to_properties(wd, params); 1797 return 0; 1798 default: 1799 panic("wd_get_params: bad return code from ata_get_params"); 1800 /* NOTREACHED */ 1801 } 1802 } 1803 1804 int 1805 wd_getcache(struct wd_softc *wd, int *bitsp) 1806 { 1807 struct ataparams params; 1808 1809 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1810 return EIO; 1811 if (params.atap_cmd_set1 == 0x0000 || 1812 params.atap_cmd_set1 == 0xffff || 1813 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1814 *bitsp = 0; 1815 return 0; 1816 } 1817 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1818 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1819 *bitsp |= DKCACHE_WRITE; 1820 1821 return 0; 1822 } 1823 1824 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1825 1826 int 1827 wd_setcache(struct wd_softc *wd, int bits) 1828 { 1829 struct ataparams params; 1830 struct ata_command ata_c; 1831 1832 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1833 return EIO; 1834 1835 if (params.atap_cmd_set1 == 0x0000 || 1836 params.atap_cmd_set1 == 0xffff || 1837 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1838 return EOPNOTSUPP; 1839 1840 if ((bits & DKCACHE_READ) == 0 || 1841 (bits & DKCACHE_SAVE) != 0) 1842 return EOPNOTSUPP; 1843 1844 memset(&ata_c, 0, sizeof(struct ata_command)); 1845 ata_c.r_command = SET_FEATURES; 1846 ata_c.r_st_bmask = 0; 1847 ata_c.r_st_pmask = 0; 1848 ata_c.timeout = 30000; /* 30s timeout */ 1849 ata_c.flags = AT_WAIT; 1850 if (bits & DKCACHE_WRITE) 1851 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1852 else 1853 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1854 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1855 printf("%s: wd_setcache command not complete\n", 1856 wd->sc_dev.dv_xname); 1857 return EIO; 1858 } 1859 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1860 char sbuf[sizeof(at_errbits) + 64]; 1861 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1862 printf("%s: wd_setcache: status=%s\n", wd->sc_dev.dv_xname, 1863 sbuf); 1864 return EIO; 1865 } 1866 return 0; 1867 } 1868 1869 static int 1870 wd_standby(struct wd_softc *wd, int flags) 1871 { 1872 struct ata_command ata_c; 1873 1874 memset(&ata_c, 0, sizeof(struct ata_command)); 1875 ata_c.r_command = WDCC_STANDBY_IMMED; 1876 ata_c.r_st_bmask = WDCS_DRDY; 1877 ata_c.r_st_pmask = WDCS_DRDY; 1878 ata_c.flags = flags; 1879 ata_c.timeout = 30000; /* 30s timeout */ 1880 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1881 aprint_error_dev(&wd->sc_dev, 1882 "standby immediate command didn't complete\n"); 1883 return EIO; 1884 } 1885 if (ata_c.flags & AT_ERROR) { 1886 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1887 return ENODEV; 1888 } 1889 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1890 char sbuf[sizeof(at_errbits) + 64]; 1891 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1892 aprint_error_dev(&wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1893 return EIO; 1894 } 1895 return 0; 1896 } 1897 1898 int 1899 wd_flushcache(struct wd_softc *wd, int flags) 1900 { 1901 struct ata_command ata_c; 1902 1903 /* 1904 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1905 * only ATA-2 and still support it. 1906 */ 1907 if (wd->drvp->ata_vers < 4 && 1908 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1909 wd->sc_params.atap_cmd_set2 == 0xffff)) 1910 return ENODEV; 1911 memset(&ata_c, 0, sizeof(struct ata_command)); 1912 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1913 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1914 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1915 else 1916 ata_c.r_command = WDCC_FLUSHCACHE; 1917 ata_c.r_st_bmask = WDCS_DRDY; 1918 ata_c.r_st_pmask = WDCS_DRDY; 1919 ata_c.flags = flags; 1920 ata_c.timeout = 30000; /* 30s timeout */ 1921 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1922 printf("%s: flush cache command didn't complete\n", 1923 wd->sc_dev.dv_xname); 1924 return EIO; 1925 } 1926 if (ata_c.flags & AT_ERROR) { 1927 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1928 return ENODEV; 1929 } 1930 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1931 char sbuf[sizeof(at_errbits) + 64]; 1932 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1933 printf("%s: wd_flushcache: status=%s\n", wd->sc_dev.dv_xname, 1934 sbuf); 1935 return EIO; 1936 } 1937 return 0; 1938 } 1939 1940 /* 1941 * Allocate space for a ioctl queue structure. Mostly taken from 1942 * scsipi_ioctl.c 1943 */ 1944 struct wd_ioctl * 1945 wi_get(void) 1946 { 1947 struct wd_ioctl *wi; 1948 int s; 1949 1950 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1951 simple_lock_init(&wi->wi_bp.b_interlock); 1952 s = splbio(); 1953 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1954 splx(s); 1955 return (wi); 1956 } 1957 1958 /* 1959 * Free an ioctl structure and remove it from our list 1960 */ 1961 1962 void 1963 wi_free(struct wd_ioctl *wi) 1964 { 1965 int s; 1966 1967 s = splbio(); 1968 LIST_REMOVE(wi, wi_list); 1969 splx(s); 1970 free(wi, M_TEMP); 1971 } 1972 1973 /* 1974 * Find a wd_ioctl structure based on the struct buf. 1975 */ 1976 1977 struct wd_ioctl * 1978 wi_find(struct buf *bp) 1979 { 1980 struct wd_ioctl *wi; 1981 int s; 1982 1983 s = splbio(); 1984 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 1985 if (bp == &wi->wi_bp) 1986 break; 1987 splx(s); 1988 return (wi); 1989 } 1990 1991 /* 1992 * Ioctl pseudo strategy routine 1993 * 1994 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 1995 * happens here is: 1996 * 1997 * - wdioctl() queues a wd_ioctl structure. 1998 * 1999 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2000 * user space I/O is required. If physio() is called, physio() eventually 2001 * calls wdioctlstrategy(). 2002 * 2003 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2004 * to perform the actual command 2005 * 2006 * The reason for the use of the pseudo strategy routine is because 2007 * when doing I/O to/from user space, physio _really_ wants to be in 2008 * the loop. We could put the entire buffer into the ioctl request 2009 * structure, but that won't scale if we want to do things like download 2010 * microcode. 2011 */ 2012 2013 void 2014 wdioctlstrategy(struct buf *bp) 2015 { 2016 struct wd_ioctl *wi; 2017 struct ata_command ata_c; 2018 int error = 0; 2019 2020 wi = wi_find(bp); 2021 if (wi == NULL) { 2022 printf("wdioctlstrategy: " 2023 "No matching ioctl request found in queue\n"); 2024 error = EINVAL; 2025 goto done; 2026 } 2027 2028 memset(&ata_c, 0, sizeof(ata_c)); 2029 2030 /* 2031 * Abort if physio broke up the transfer 2032 */ 2033 2034 if (bp->b_bcount != wi->wi_atareq.datalen) { 2035 printf("physio split wd ioctl request... cannot proceed\n"); 2036 error = EIO; 2037 goto done; 2038 } 2039 2040 /* 2041 * Abort if we didn't get a buffer size that was a multiple of 2042 * our sector size (or was larger than NBBY) 2043 */ 2044 2045 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2046 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2047 (1 << NBBY)) { 2048 error = EINVAL; 2049 goto done; 2050 } 2051 2052 /* 2053 * Make sure a timeout was supplied in the ioctl request 2054 */ 2055 2056 if (wi->wi_atareq.timeout == 0) { 2057 error = EINVAL; 2058 goto done; 2059 } 2060 2061 if (wi->wi_atareq.flags & ATACMD_READ) 2062 ata_c.flags |= AT_READ; 2063 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2064 ata_c.flags |= AT_WRITE; 2065 2066 if (wi->wi_atareq.flags & ATACMD_READREG) 2067 ata_c.flags |= AT_READREG; 2068 2069 ata_c.flags |= AT_WAIT; 2070 2071 ata_c.timeout = wi->wi_atareq.timeout; 2072 ata_c.r_command = wi->wi_atareq.command; 2073 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2074 ata_c.r_cyl = wi->wi_atareq.cylinder; 2075 ata_c.r_sector = wi->wi_atareq.sec_num; 2076 ata_c.r_count = wi->wi_atareq.sec_count; 2077 ata_c.r_features = wi->wi_atareq.features; 2078 ata_c.r_st_bmask = WDCS_DRDY; 2079 ata_c.r_st_pmask = WDCS_DRDY; 2080 ata_c.data = wi->wi_bp.b_data; 2081 ata_c.bcount = wi->wi_bp.b_bcount; 2082 2083 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2084 != ATACMD_COMPLETE) { 2085 wi->wi_atareq.retsts = ATACMD_ERROR; 2086 error = EIO; 2087 goto done; 2088 } 2089 2090 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2091 if (ata_c.flags & AT_ERROR) { 2092 wi->wi_atareq.retsts = ATACMD_ERROR; 2093 wi->wi_atareq.error = ata_c.r_error; 2094 } else if (ata_c.flags & AT_DF) 2095 wi->wi_atareq.retsts = ATACMD_DF; 2096 else 2097 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2098 } else { 2099 wi->wi_atareq.retsts = ATACMD_OK; 2100 if (wi->wi_atareq.flags & ATACMD_READREG) { 2101 wi->wi_atareq.head = ata_c.r_head ; 2102 wi->wi_atareq.cylinder = ata_c.r_cyl; 2103 wi->wi_atareq.sec_num = ata_c.r_sector; 2104 wi->wi_atareq.sec_count = ata_c.r_count; 2105 wi->wi_atareq.features = ata_c.r_features; 2106 wi->wi_atareq.error = ata_c.r_error; 2107 } 2108 } 2109 2110 done: 2111 bp->b_error = error; 2112 biodone(bp); 2113 } 2114
Indexes created Mon Sep 29 21:09:56 GMT 2025