wd.c revision 1.355.6.3
1 /* $NetBSD: wd.c,v 1.355.6.3 2008/04/04 21:21:11 mjf 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 1.355.6.3 2008/04/04 21:21:11 mjf Exp $"); 70 71 #include "opt_ata.h" 72 73 #include "rnd.h" 74 75 #include <sys/param.h> 76 #include <sys/systm.h> 77 #include <sys/kernel.h> 78 #include <sys/conf.h> 79 #include <sys/file.h> 80 #include <sys/stat.h> 81 #include <sys/ioctl.h> 82 #include <sys/buf.h> 83 #include <sys/bufq.h> 84 #include <sys/uio.h> 85 #include <sys/malloc.h> 86 #include <sys/device.h> 87 #include <sys/disklabel.h> 88 #include <sys/disk.h> 89 #include <sys/syslog.h> 90 #include <sys/proc.h> 91 #include <sys/reboot.h> 92 #include <sys/vnode.h> 93 #if NRND > 0 94 #include <sys/rnd.h> 95 #endif 96 97 #include <sys/intr.h> 98 #include <sys/bus.h> 99 100 #include <dev/ata/atareg.h> 101 #include <dev/ata/atavar.h> 102 #include <dev/ata/wdvar.h> 103 #include <dev/ic/wdcreg.h> 104 #include <sys/ataio.h> 105 #include "locators.h" 106 107 #include <prop/proplib.h> 108 109 #define LBA48_THRESHOLD (0xfffffff) /* 128GB / DEV_BSIZE */ 110 111 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 112 #define WDIORETRIES 5 /* number of retries before giving up */ 113 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 114 115 #define WDUNIT(dev) DISKUNIT(dev) 116 #define WDPART(dev) DISKPART(dev) 117 #define WDMINOR(unit, part) DISKMINOR(unit, part) 118 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 119 120 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 121 122 #define DEBUG_INTR 0x01 123 #define DEBUG_XFERS 0x02 124 #define DEBUG_STATUS 0x04 125 #define DEBUG_FUNCS 0x08 126 #define DEBUG_PROBE 0x10 127 #ifdef ATADEBUG 128 int wdcdebug_wd_mask = 0x0; 129 #define ATADEBUG_PRINT(args, level) \ 130 if (wdcdebug_wd_mask & (level)) \ 131 printf args 132 #else 133 #define ATADEBUG_PRINT(args, level) 134 #endif 135 136 int wdprobe(struct device *, struct cfdata *, void *); 137 void wdattach(struct device *, struct device *, void *); 138 int wddetach(struct device *, int); 139 int wdactivate(struct device *, enum devact); 140 int wdprint(void *, char *); 141 void wdperror(const struct wd_softc *); 142 143 static bool wd_suspend(device_t PMF_FN_PROTO); 144 static int wd_standby(struct wd_softc *, int); 145 146 CFATTACH_DECL_NEW(wd, sizeof(struct wd_softc), 147 wdprobe, wdattach, wddetach, wdactivate); 148 149 extern struct cfdriver wd_cd; 150 151 dev_type_open(wdopen); 152 dev_type_close(wdclose); 153 dev_type_read(wdread); 154 dev_type_write(wdwrite); 155 dev_type_ioctl(wdioctl); 156 dev_type_strategy(wdstrategy); 157 dev_type_dump(wddump); 158 dev_type_size(wdsize); 159 160 const struct bdevsw wd_bdevsw = { 161 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 162 }; 163 164 const struct cdevsw wd_cdevsw = { 165 wdopen, wdclose, wdread, wdwrite, wdioctl, 166 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 167 }; 168 169 /* 170 * Glue necessary to hook WDCIOCCOMMAND into physio 171 */ 172 173 struct wd_ioctl { 174 LIST_ENTRY(wd_ioctl) wi_list; 175 struct buf wi_bp; 176 struct uio wi_uio; 177 struct iovec wi_iov; 178 atareq_t wi_atareq; 179 struct wd_softc *wi_softc; 180 }; 181 182 LIST_HEAD(, wd_ioctl) wi_head; 183 184 struct wd_ioctl *wi_find(struct buf *); 185 void wi_free(struct wd_ioctl *); 186 struct wd_ioctl *wi_get(void); 187 void wdioctlstrategy(struct buf *); 188 189 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 190 void wdgetdisklabel(struct wd_softc *); 191 void wdstart(void *); 192 void __wdstart(struct wd_softc*, struct buf *); 193 void wdrestart(void *); 194 void wddone(void *); 195 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 196 int wd_flushcache(struct wd_softc *, int); 197 bool wd_shutdown(device_t, 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 = device_private(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 uint16_t np; 308 int bmajor, cmajor; 309 310 wd->sc_dev = self; 311 312 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 313 callout_init(&wd->sc_restart_ch, 0); 314 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 315 #ifdef WD_SOFTBADSECT 316 SLIST_INIT(&wd->sc_bslist); 317 #endif 318 wd->atabus = adev->adev_bustype; 319 wd->openings = adev->adev_openings; 320 wd->drvp = adev->adev_drv_data; 321 322 wd->drvp->drv_done = wddone; 323 wd->drvp->drv_softc = wd->sc_dev; 324 325 aprint_naive("\n"); 326 327 /* read our drive info */ 328 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 329 aprint_error("\n%s: IDENTIFY failed\n", device_xname(self)); 330 return; 331 } 332 333 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 334 i < sizeof(wd->sc_params.atap_model); i++) { 335 c = *p++; 336 if (c == '\0') 337 break; 338 if (c != ' ') { 339 if (blank) { 340 *q++ = ' '; 341 blank = 0; 342 } 343 *q++ = c; 344 } else 345 blank = 1; 346 } 347 *q++ = '\0'; 348 349 aprint_normal(": <%s>\n", tbuf); 350 351 wdq = wd_lookup_quirks(tbuf); 352 if (wdq != NULL) 353 wd->sc_quirks = wdq->wdq_quirks; 354 355 if (wd->sc_quirks != 0) { 356 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 357 bitmask_snprintf(wd->sc_quirks, WD_QUIRK_FMT, 358 sbuf, sizeof(sbuf)); 359 aprint_normal_dev(self, "quirks %s\n", sbuf); 360 } 361 362 if ((wd->sc_params.atap_multi & 0xff) > 1) { 363 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 364 } else { 365 wd->sc_multi = 1; 366 } 367 368 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 369 wd->sc_multi); 370 371 /* 48-bit LBA addressing */ 372 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 373 wd->sc_flags |= WDF_LBA48; 374 375 /* Prior to ATA-4, LBA was optional. */ 376 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 377 wd->sc_flags |= WDF_LBA; 378 #if 0 379 /* ATA-4 requires LBA. */ 380 if (wd->sc_params.atap_ataversion != 0xffff && 381 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 382 wd->sc_flags |= WDF_LBA; 383 #endif 384 385 if ((wd->sc_flags & WDF_LBA48) != 0) { 386 aprint_verbose(" LBA48 addressing\n"); 387 wd->sc_capacity = 388 ((u_int64_t) wd->sc_params.__reserved6[11] << 48) | 389 ((u_int64_t) wd->sc_params.__reserved6[10] << 32) | 390 ((u_int64_t) wd->sc_params.__reserved6[9] << 16) | 391 ((u_int64_t) wd->sc_params.__reserved6[8] << 0); 392 } else if ((wd->sc_flags & WDF_LBA) != 0) { 393 aprint_verbose(" LBA addressing\n"); 394 wd->sc_capacity = 395 ((u_int64_t)wd->sc_params.atap_capacity[1] << 16) | 396 wd->sc_params.atap_capacity[0]; 397 } else { 398 aprint_verbose(" chs addressing\n"); 399 wd->sc_capacity = 400 wd->sc_params.atap_cylinders * 401 wd->sc_params.atap_heads * 402 wd->sc_params.atap_sectors; 403 } 404 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 405 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 406 "%d bytes/sect x %llu sectors\n", 407 pbuf, 408 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 409 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 410 wd->sc_params.atap_cylinders, 411 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 412 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 413 414 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 415 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 416 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 417 /* 418 * Initialize and attach the disk structure. 419 */ 420 /* we fill in dk_info later */ 421 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 422 disk_attach(&wd->sc_dk); 423 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 424 #if NRND > 0 425 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 426 RND_TYPE_DISK, 0); 427 #endif 428 429 /* Discover wedges on this disk. */ 430 dkwedge_discover(&wd->sc_dk); 431 432 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 433 aprint_error_dev(self, "couldn't establish power handler\n"); 434 435 bmajor = bdevsw_lookup_major(&wd_bdevsw); 436 cmajor = cdevsw_lookup_major(&wd_cdevsw); 437 438 np = wd->sc_dk.dk_label->d_npartitions; 439 440 for (i = 0; i < np; i++) { 441 device_register_name( 442 MAKEDISKDEV(bmajor, device_unit(wd->sc_dev), i), 443 self, false, DEV_DISK, 444 "wd%d%c", device_unit(wd->sc_dev), 'a' + i); 445 446 device_register_name( 447 MAKEDISKDEV(cmajor, device_unit(wd->sc_dev), i), 448 self, true, DEV_DISK, 449 "rwd%d%c", device_unit(wd->sc_dev), 'a' + i); 450 } 451 } 452 453 static bool 454 wd_suspend(device_t dv PMF_FN_ARGS) 455 { 456 struct wd_softc *sc = device_private(dv); 457 458 wd_flushcache(sc, AT_WAIT); 459 wd_standby(sc, AT_WAIT); 460 return true; 461 } 462 463 int 464 wdactivate(struct device *self, enum devact act) 465 { 466 int rv = 0; 467 468 switch (act) { 469 case DVACT_ACTIVATE: 470 rv = EOPNOTSUPP; 471 break; 472 473 case DVACT_DEACTIVATE: 474 /* 475 * Nothing to do; we key off the device's DVF_ACTIVATE. 476 */ 477 break; 478 } 479 return (rv); 480 } 481 482 int 483 wddetach(struct device *self, int flags) 484 { 485 struct wd_softc *sc = device_private(self); 486 int s, bmaj, cmaj, i, mn, unit; 487 488 /* locate the major number */ 489 bmaj = bdevsw_lookup_major(&wd_bdevsw); 490 cmaj = cdevsw_lookup_major(&wd_cdevsw); 491 492 /* Nuke the vnodes for any open instances. */ 493 for (i = 0; i < MAXPARTITIONS; i++) { 494 unit = device_unit(self); 495 mn = WDMINOR(unit, i); 496 vdevgone(bmaj, mn, mn, VBLK); 497 vdevgone(cmaj, mn, mn, VCHR); 498 499 device_unregister_name(makedev(bmaj, mn), 500 "wd%d%c", unit, 'a' + i); 501 device_unregister_name(makedev(cmaj, mn), 502 "rwd%d%c", unit, 'a' + i); 503 } 504 505 /* Delete all of our wedges. */ 506 dkwedge_delall(&sc->sc_dk); 507 508 s = splbio(); 509 510 /* Kill off any queued buffers. */ 511 bufq_drain(sc->sc_q); 512 513 bufq_free(sc->sc_q); 514 sc->atabus->ata_killpending(sc->drvp); 515 516 splx(s); 517 518 /* Detach disk. */ 519 disk_detach(&sc->sc_dk); 520 521 #ifdef WD_SOFTBADSECT 522 /* Clean out the bad sector list */ 523 while (!SLIST_EMPTY(&sc->sc_bslist)) { 524 void *head = SLIST_FIRST(&sc->sc_bslist); 525 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 526 free(head, M_TEMP); 527 } 528 sc->sc_bscount = 0; 529 #endif 530 531 pmf_device_deregister(self); 532 533 #if NRND > 0 534 /* Unhook the entropy source. */ 535 rnd_detach_source(&sc->rnd_source); 536 #endif 537 538 sc->drvp->drive_flags = 0; /* no drive any more here */ 539 540 return (0); 541 } 542 543 /* 544 * Read/write routine for a buffer. Validates the arguments and schedules the 545 * transfer. Does not wait for the transfer to complete. 546 */ 547 void 548 wdstrategy(struct buf *bp) 549 { 550 struct wd_softc *wd = 551 device_private(device_lookup(&wd_cd, WDUNIT(bp->b_dev))); 552 struct disklabel *lp = wd->sc_dk.dk_label; 553 daddr_t blkno; 554 int s; 555 556 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 557 DEBUG_XFERS); 558 559 /* Valid request? */ 560 if (bp->b_blkno < 0 || 561 (bp->b_bcount % lp->d_secsize) != 0 || 562 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 563 bp->b_error = EINVAL; 564 goto done; 565 } 566 567 /* If device invalidated (e.g. media change, door open), error. */ 568 if ((wd->sc_flags & WDF_LOADED) == 0) { 569 bp->b_error = EIO; 570 goto done; 571 } 572 573 /* If it's a null transfer, return immediately. */ 574 if (bp->b_bcount == 0) 575 goto done; 576 577 /* 578 * Do bounds checking, adjust transfer. if error, process. 579 * If end of partition, just return. 580 */ 581 if (WDPART(bp->b_dev) == RAW_PART) { 582 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 583 wd->sc_capacity) <= 0) 584 goto done; 585 } else { 586 if (bounds_check_with_label(&wd->sc_dk, bp, 587 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 588 goto done; 589 } 590 591 /* 592 * Now convert the block number to absolute and put it in 593 * terms of the device's logical block size. 594 */ 595 if (lp->d_secsize >= DEV_BSIZE) 596 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 597 else 598 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 599 600 if (WDPART(bp->b_dev) != RAW_PART) 601 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 602 603 bp->b_rawblkno = blkno; 604 605 #ifdef WD_SOFTBADSECT 606 /* 607 * If the transfer about to be attempted contains only a block that 608 * is known to be bad then return an error for the transfer without 609 * even attempting to start a transfer up under the premis that we 610 * will just end up doing more retries for a transfer that will end 611 * up failing again. 612 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 613 */ 614 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 615 struct disk_badsectors *dbs; 616 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 617 618 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 619 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 620 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 621 bp->b_error = EIO; 622 goto done; 623 } 624 } 625 #endif 626 627 /* Queue transfer on drive, activate drive and controller if idle. */ 628 s = splbio(); 629 BUFQ_PUT(wd->sc_q, bp); 630 wdstart(wd); 631 splx(s); 632 return; 633 done: 634 /* Toss transfer; we're done early. */ 635 bp->b_resid = bp->b_bcount; 636 biodone(bp); 637 } 638 639 /* 640 * Queue a drive for I/O. 641 */ 642 void 643 wdstart(void *arg) 644 { 645 struct wd_softc *wd = arg; 646 struct buf *bp = NULL; 647 648 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 649 DEBUG_XFERS); 650 while (wd->openings > 0) { 651 652 /* Is there a buf for us ? */ 653 if ((bp = BUFQ_GET(wd->sc_q)) == NULL) 654 return; 655 656 /* 657 * Make the command. First lock the device 658 */ 659 wd->openings--; 660 661 wd->retries = 0; 662 __wdstart(wd, bp); 663 } 664 } 665 666 static void 667 wd_split_mod15_write(struct buf *bp) 668 { 669 struct buf *obp = bp->b_private; 670 struct wd_softc *sc = 671 device_private(wd_cd.cd_devs[DISKUNIT(obp->b_dev)]); 672 673 if (__predict_false(bp->b_error != 0)) { 674 /* 675 * Propagate the error. If this was the first half of 676 * the original transfer, make sure to account for that 677 * in the residual. 678 */ 679 if (bp->b_data == obp->b_data) 680 bp->b_resid += bp->b_bcount; 681 goto done; 682 } 683 684 /* 685 * If this was the second half of the transfer, we're all done! 686 */ 687 if (bp->b_data != obp->b_data) 688 goto done; 689 690 /* 691 * Advance the pointer to the second half and issue that command 692 * using the same opening. 693 */ 694 bp->b_flags = obp->b_flags; 695 bp->b_oflags = obp->b_oflags; 696 bp->b_cflags = obp->b_cflags; 697 bp->b_data = (char *)bp->b_data + bp->b_bcount; 698 bp->b_blkno += (bp->b_bcount / 512); 699 bp->b_rawblkno += (bp->b_bcount / 512); 700 __wdstart(sc, bp); 701 return; 702 703 done: 704 obp->b_error = bp->b_error; 705 obp->b_resid = bp->b_resid; 706 putiobuf(bp); 707 biodone(obp); 708 sc->openings++; 709 /* wddone() will call wdstart() */ 710 } 711 712 void 713 __wdstart(struct wd_softc *wd, struct buf *bp) 714 { 715 716 /* 717 * Deal with the "split mod15 write" quirk. We just divide the 718 * transfer in two, doing the first half and then then second half 719 * with the same command opening. 720 * 721 * Note we MUST do this here, because we can't let insertion 722 * into the bufq cause the transfers to be re-merged. 723 */ 724 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 725 (bp->b_flags & B_READ) == 0 && 726 bp->b_bcount > 512 && 727 ((bp->b_bcount / 512) % 15) == 1)) { 728 struct buf *nbp; 729 730 /* already at splbio */ 731 nbp = getiobuf(NULL, false); 732 if (__predict_false(nbp == NULL)) { 733 /* No memory -- fail the iop. */ 734 bp->b_error = ENOMEM; 735 bp->b_resid = bp->b_bcount; 736 biodone(bp); 737 wd->openings++; 738 return; 739 } 740 741 nbp->b_error = 0; 742 nbp->b_proc = bp->b_proc; 743 nbp->b_dev = bp->b_dev; 744 745 nbp->b_bcount = bp->b_bcount / 2; 746 nbp->b_bufsize = bp->b_bcount / 2; 747 nbp->b_data = bp->b_data; 748 749 nbp->b_blkno = bp->b_blkno; 750 nbp->b_rawblkno = bp->b_rawblkno; 751 752 nbp->b_flags = bp->b_flags; 753 nbp->b_oflags = bp->b_oflags; 754 nbp->b_cflags = bp->b_cflags; 755 nbp->b_iodone = wd_split_mod15_write; 756 757 /* Put ptr to orig buf in b_private and use new buf */ 758 nbp->b_private = bp; 759 760 BIO_COPYPRIO(nbp, bp); 761 762 bp = nbp; 763 } 764 765 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 766 wd->sc_wdc_bio.blkdone =0; 767 wd->sc_bp = bp; 768 /* 769 * If we're retrying, retry in single-sector mode. This will give us 770 * the sector number of the problem, and will eventually allow the 771 * transfer to succeed. 772 */ 773 if (wd->retries >= WDIORETRIES_SINGLE) 774 wd->sc_wdc_bio.flags = ATA_SINGLE; 775 else 776 wd->sc_wdc_bio.flags = 0; 777 if (wd->sc_flags & WDF_LBA48 && 778 (wd->sc_wdc_bio.blkno > LBA48_THRESHOLD || 779 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 780 wd->sc_wdc_bio.flags |= ATA_LBA48; 781 if (wd->sc_flags & WDF_LBA) 782 wd->sc_wdc_bio.flags |= ATA_LBA; 783 if (bp->b_flags & B_READ) 784 wd->sc_wdc_bio.flags |= ATA_READ; 785 wd->sc_wdc_bio.bcount = bp->b_bcount; 786 wd->sc_wdc_bio.databuf = bp->b_data; 787 /* Instrumentation. */ 788 disk_busy(&wd->sc_dk); 789 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 790 case ATACMD_TRY_AGAIN: 791 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 792 break; 793 case ATACMD_QUEUED: 794 case ATACMD_COMPLETE: 795 break; 796 default: 797 panic("__wdstart: bad return code from ata_bio()"); 798 } 799 } 800 801 void 802 wddone(void *v) 803 { 804 struct wd_softc *wd = device_private(v); 805 struct buf *bp = wd->sc_bp; 806 const char *errmsg; 807 int do_perror = 0; 808 int nblks; 809 810 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 811 DEBUG_XFERS); 812 if (bp == NULL) 813 return; 814 bp->b_resid = wd->sc_wdc_bio.bcount; 815 switch (wd->sc_wdc_bio.error) { 816 case ERR_DMA: 817 errmsg = "DMA error"; 818 goto retry; 819 case ERR_DF: 820 errmsg = "device fault"; 821 goto retry; 822 case TIMEOUT: 823 errmsg = "device timeout"; 824 goto retry; 825 case ERR_RESET: 826 errmsg = "channel reset"; 827 goto retry2; 828 case ERROR: 829 /* Don't care about media change bits */ 830 if (wd->sc_wdc_bio.r_error != 0 && 831 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 832 goto noerror; 833 errmsg = "error"; 834 do_perror = 1; 835 if ((wd->sc_wdc_bio.r_error & (WDCE_IDNF | WDCE_ABRT)) && 836 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) == 0) { 837 nblks = wd->sc_wdc_bio.bcount / 838 wd->sc_dk.dk_label->d_secsize; 839 /* 840 * If we get a "id not found" when crossing the 841 * LBA48_THRESHOLD, and the drive is larger than 842 * 128GB, then we can assume the drive has the 843 * LBA48 bug and we switch to LBA48. 844 */ 845 if (wd->sc_wdc_bio.blkno <= LBA48_THRESHOLD && 846 wd->sc_wdc_bio.blkno + nblks > LBA48_THRESHOLD && 847 wd->sc_capacity > LBA48_THRESHOLD + 1) { 848 errmsg = "LBA48 bug"; 849 wd->sc_quirks |= WD_QUIRK_FORCE_LBA48; 850 do_perror = 0; 851 goto retry2; 852 } 853 } 854 retry: /* Just reset and retry. Can we do more ? */ 855 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD); 856 retry2: 857 diskerr(bp, "wd", errmsg, LOG_PRINTF, 858 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 859 if (wd->retries < WDIORETRIES) 860 printf(", retrying"); 861 printf("\n"); 862 if (do_perror) 863 wdperror(wd); 864 if (wd->retries < WDIORETRIES) { 865 wd->retries++; 866 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 867 wdrestart, wd); 868 return; 869 } 870 871 #ifdef WD_SOFTBADSECT 872 /* 873 * Not all errors indicate a failed block but those that do, 874 * put the block on the bad-block list for the device. Only 875 * do this for reads because the drive should do it for writes, 876 * itself, according to Manuel. 877 */ 878 if ((bp->b_flags & B_READ) && 879 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 880 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 881 struct disk_badsectors *dbs; 882 883 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 884 dbs->dbs_min = bp->b_rawblkno; 885 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 886 microtime(&dbs->dbs_failedat); 887 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 888 wd->sc_bscount++; 889 } 890 #endif 891 bp->b_error = EIO; 892 break; 893 case NOERROR: 894 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 895 aprint_error_dev(wd->sc_dev, 896 "soft error (corrected)\n"); 897 break; 898 case ERR_NODEV: 899 bp->b_error = EIO; 900 break; 901 } 902 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 903 (bp->b_flags & B_READ)); 904 #if NRND > 0 905 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 906 #endif 907 /* XXX Yuck, but we don't want to increment openings in this case */ 908 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 909 biodone(bp); 910 else { 911 biodone(bp); 912 wd->openings++; 913 } 914 wdstart(wd); 915 } 916 917 void 918 wdrestart(void *v) 919 { 920 struct wd_softc *wd = v; 921 struct buf *bp = wd->sc_bp; 922 int s; 923 924 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 925 DEBUG_XFERS); 926 s = splbio(); 927 __wdstart(v, bp); 928 splx(s); 929 } 930 931 int 932 wdread(dev_t dev, struct uio *uio, int flags) 933 { 934 935 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 936 return (physio(wdstrategy, NULL, dev, B_READ, minphys, uio)); 937 } 938 939 int 940 wdwrite(dev_t dev, struct uio *uio, int flags) 941 { 942 943 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 944 return (physio(wdstrategy, NULL, dev, B_WRITE, minphys, uio)); 945 } 946 947 int 948 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 949 { 950 struct wd_softc *wd; 951 int part, error; 952 953 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 954 wd = device_private(device_lookup(&wd_cd, WDUNIT(dev))); 955 if (wd == NULL) 956 return (ENXIO); 957 958 if (! device_is_active(wd->sc_dev)) 959 return (ENODEV); 960 961 part = WDPART(dev); 962 963 mutex_enter(&wd->sc_dk.dk_openlock); 964 965 /* 966 * If there are wedges, and this is not RAW_PART, then we 967 * need to fail. 968 */ 969 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 970 error = EBUSY; 971 goto bad1; 972 } 973 974 /* 975 * If this is the first open of this device, add a reference 976 * to the adapter. 977 */ 978 if (wd->sc_dk.dk_openmask == 0 && 979 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 980 goto bad1; 981 982 if (wd->sc_dk.dk_openmask != 0) { 983 /* 984 * If any partition is open, but the disk has been invalidated, 985 * disallow further opens. 986 */ 987 if ((wd->sc_flags & WDF_LOADED) == 0) { 988 error = EIO; 989 goto bad2; 990 } 991 } else { 992 if ((wd->sc_flags & WDF_LOADED) == 0) { 993 wd->sc_flags |= WDF_LOADED; 994 995 /* Load the physical device parameters. */ 996 wd_get_params(wd, AT_WAIT, &wd->sc_params); 997 998 /* Load the partition info if not already loaded. */ 999 wdgetdisklabel(wd); 1000 } 1001 } 1002 1003 /* Check that the partition exists. */ 1004 if (part != RAW_PART && 1005 (part >= wd->sc_dk.dk_label->d_npartitions || 1006 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 1007 error = ENXIO; 1008 goto bad2; 1009 } 1010 1011 /* Insure only one open at a time. */ 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 mutex_exit(&wd->sc_dk.dk_openlock); 1024 return 0; 1025 1026 bad2: 1027 if (wd->sc_dk.dk_openmask == 0) 1028 wd->atabus->ata_delref(wd->drvp); 1029 bad1: 1030 mutex_exit(&wd->sc_dk.dk_openlock); 1031 return error; 1032 } 1033 1034 int 1035 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1036 { 1037 struct wd_softc *wd = 1038 device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1039 int part = WDPART(dev); 1040 1041 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1042 1043 mutex_enter(&wd->sc_dk.dk_openlock); 1044 1045 switch (fmt) { 1046 case S_IFCHR: 1047 wd->sc_dk.dk_copenmask &= ~(1 << part); 1048 break; 1049 case S_IFBLK: 1050 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1051 break; 1052 } 1053 wd->sc_dk.dk_openmask = 1054 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1055 1056 if (wd->sc_dk.dk_openmask == 0) { 1057 wd_flushcache(wd, AT_WAIT); 1058 1059 if (! (wd->sc_flags & WDF_KLABEL)) 1060 wd->sc_flags &= ~WDF_LOADED; 1061 1062 wd->atabus->ata_delref(wd->drvp); 1063 } 1064 1065 mutex_exit(&wd->sc_dk.dk_openlock); 1066 return 0; 1067 } 1068 1069 void 1070 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1071 { 1072 1073 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1074 memset(lp, 0, sizeof(struct disklabel)); 1075 1076 lp->d_secsize = DEV_BSIZE; 1077 lp->d_ntracks = wd->sc_params.atap_heads; 1078 lp->d_nsectors = wd->sc_params.atap_sectors; 1079 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1080 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1081 wd->sc_params.atap_cylinders; 1082 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1083 1084 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1085 lp->d_type = DTYPE_ST506; 1086 else 1087 lp->d_type = DTYPE_ESDI; 1088 1089 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1090 strncpy(lp->d_packname, "fictitious", 16); 1091 if (wd->sc_capacity > UINT32_MAX) 1092 lp->d_secperunit = UINT32_MAX; 1093 else 1094 lp->d_secperunit = wd->sc_capacity; 1095 lp->d_rpm = 3600; 1096 lp->d_interleave = 1; 1097 lp->d_flags = 0; 1098 1099 lp->d_partitions[RAW_PART].p_offset = 0; 1100 lp->d_partitions[RAW_PART].p_size = 1101 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1102 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1103 lp->d_npartitions = RAW_PART + 1; 1104 1105 lp->d_magic = DISKMAGIC; 1106 lp->d_magic2 = DISKMAGIC; 1107 lp->d_checksum = dkcksum(lp); 1108 } 1109 1110 /* 1111 * Fabricate a default disk label, and try to read the correct one. 1112 */ 1113 void 1114 wdgetdisklabel(struct wd_softc *wd) 1115 { 1116 struct disklabel *lp = wd->sc_dk.dk_label; 1117 const char *errstring; 1118 int s; 1119 1120 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1121 1122 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1123 1124 wdgetdefaultlabel(wd, lp); 1125 1126 wd->sc_badsect[0] = -1; 1127 1128 if (wd->drvp->state > RESET) { 1129 s = splbio(); 1130 wd->drvp->drive_flags |= DRIVE_RESET; 1131 splx(s); 1132 } 1133 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1134 RAW_PART), wdstrategy, lp, 1135 wd->sc_dk.dk_cpulabel); 1136 if (errstring) { 1137 /* 1138 * This probably happened because the drive's default 1139 * geometry doesn't match the DOS geometry. We 1140 * assume the DOS geometry is now in the label and try 1141 * again. XXX This is a kluge. 1142 */ 1143 if (wd->drvp->state > RESET) { 1144 s = splbio(); 1145 wd->drvp->drive_flags |= DRIVE_RESET; 1146 splx(s); 1147 } 1148 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1149 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1150 } 1151 if (errstring) { 1152 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1153 return; 1154 } 1155 1156 if (wd->drvp->state > RESET) { 1157 s = splbio(); 1158 wd->drvp->drive_flags |= DRIVE_RESET; 1159 splx(s); 1160 } 1161 #ifdef HAS_BAD144_HANDLING 1162 if ((lp->d_flags & D_BADSECT) != 0) 1163 bad144intern(wd); 1164 #endif 1165 } 1166 1167 void 1168 wdperror(const struct wd_softc *wd) 1169 { 1170 static const char *const errstr0_3[] = {"address mark not found", 1171 "track 0 not found", "aborted command", "media change requested", 1172 "id not found", "media changed", "uncorrectable data error", 1173 "bad block detected"}; 1174 static const char *const errstr4_5[] = { 1175 "obsolete (address mark not found)", 1176 "no media/write protected", "aborted command", 1177 "media change requested", "id not found", "media changed", 1178 "uncorrectable data error", "interface CRC error"}; 1179 const char *const *errstr; 1180 int i; 1181 const char *sep = ""; 1182 1183 const char *devname = device_xname(wd->sc_dev); 1184 struct ata_drive_datas *drvp = wd->drvp; 1185 int errno = wd->sc_wdc_bio.r_error; 1186 1187 if (drvp->ata_vers >= 4) 1188 errstr = errstr4_5; 1189 else 1190 errstr = errstr0_3; 1191 1192 printf("%s: (", devname); 1193 1194 if (errno == 0) 1195 printf("error not notified"); 1196 1197 for (i = 0; i < 8; i++) { 1198 if (errno & (1 << i)) { 1199 printf("%s%s", sep, errstr[i]); 1200 sep = ", "; 1201 } 1202 } 1203 printf(")\n"); 1204 } 1205 1206 int 1207 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1208 { 1209 struct wd_softc *wd = 1210 device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1211 int error = 0, s; 1212 #ifdef __HAVE_OLD_DISKLABEL 1213 struct disklabel *newlabel = NULL; 1214 #endif 1215 1216 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1217 1218 if ((wd->sc_flags & WDF_LOADED) == 0) 1219 return EIO; 1220 1221 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1222 if (error != EPASSTHROUGH) 1223 return (error); 1224 1225 switch (xfer) { 1226 #ifdef HAS_BAD144_HANDLING 1227 case DIOCSBAD: 1228 if ((flag & FWRITE) == 0) 1229 return EBADF; 1230 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1231 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1232 bad144intern(wd); 1233 return 0; 1234 #endif 1235 #ifdef WD_SOFTBADSECT 1236 case DIOCBSLIST : 1237 { 1238 u_int32_t count, missing, skip; 1239 struct disk_badsecinfo dbsi; 1240 struct disk_badsectors *dbs; 1241 size_t available; 1242 uint8_t *laddr; 1243 1244 dbsi = *(struct disk_badsecinfo *)addr; 1245 missing = wd->sc_bscount; 1246 count = 0; 1247 available = dbsi.dbsi_bufsize; 1248 skip = dbsi.dbsi_skip; 1249 laddr = (uint8_t *)dbsi.dbsi_buffer; 1250 1251 /* 1252 * We start this loop with the expectation that all of the 1253 * entries will be missed and decrement this counter each 1254 * time we either skip over one (already copied out) or 1255 * we actually copy it back to user space. The structs 1256 * holding the bad sector information are copied directly 1257 * back to user space whilst the summary is returned via 1258 * the struct passed in via the ioctl. 1259 */ 1260 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1261 if (skip > 0) { 1262 missing--; 1263 skip--; 1264 continue; 1265 } 1266 if (available < sizeof(*dbs)) 1267 break; 1268 available -= sizeof(*dbs); 1269 copyout(dbs, laddr, sizeof(*dbs)); 1270 laddr += sizeof(*dbs); 1271 missing--; 1272 count++; 1273 } 1274 dbsi.dbsi_left = missing; 1275 dbsi.dbsi_copied = count; 1276 *(struct disk_badsecinfo *)addr = dbsi; 1277 return 0; 1278 } 1279 1280 case DIOCBSFLUSH : 1281 /* Clean out the bad sector list */ 1282 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1283 void *head = SLIST_FIRST(&wd->sc_bslist); 1284 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1285 free(head, M_TEMP); 1286 } 1287 wd->sc_bscount = 0; 1288 return 0; 1289 #endif 1290 case DIOCGDINFO: 1291 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1292 return 0; 1293 #ifdef __HAVE_OLD_DISKLABEL 1294 case ODIOCGDINFO: 1295 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1296 if (newlabel == NULL) 1297 return EIO; 1298 *newlabel = *(wd->sc_dk.dk_label); 1299 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1300 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1301 else 1302 error = ENOTTY; 1303 free(newlabel, M_TEMP); 1304 return error; 1305 #endif 1306 1307 case DIOCGPART: 1308 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1309 ((struct partinfo *)addr)->part = 1310 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1311 return 0; 1312 1313 case DIOCWDINFO: 1314 case DIOCSDINFO: 1315 #ifdef __HAVE_OLD_DISKLABEL 1316 case ODIOCWDINFO: 1317 case ODIOCSDINFO: 1318 #endif 1319 { 1320 struct disklabel *lp; 1321 1322 if ((flag & FWRITE) == 0) 1323 return EBADF; 1324 1325 #ifdef __HAVE_OLD_DISKLABEL 1326 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1327 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1328 if (newlabel == NULL) 1329 return EIO; 1330 memset(newlabel, 0, sizeof newlabel); 1331 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1332 lp = newlabel; 1333 } else 1334 #endif 1335 lp = (struct disklabel *)addr; 1336 1337 mutex_enter(&wd->sc_dk.dk_openlock); 1338 wd->sc_flags |= WDF_LABELLING; 1339 1340 error = setdisklabel(wd->sc_dk.dk_label, 1341 lp, /*wd->sc_dk.dk_openmask : */0, 1342 wd->sc_dk.dk_cpulabel); 1343 if (error == 0) { 1344 if (wd->drvp->state > RESET) { 1345 s = splbio(); 1346 wd->drvp->drive_flags |= DRIVE_RESET; 1347 splx(s); 1348 } 1349 if (xfer == DIOCWDINFO 1350 #ifdef __HAVE_OLD_DISKLABEL 1351 || xfer == ODIOCWDINFO 1352 #endif 1353 ) 1354 error = writedisklabel(WDLABELDEV(dev), 1355 wdstrategy, wd->sc_dk.dk_label, 1356 wd->sc_dk.dk_cpulabel); 1357 } 1358 1359 wd->sc_flags &= ~WDF_LABELLING; 1360 mutex_exit(&wd->sc_dk.dk_openlock); 1361 #ifdef __HAVE_OLD_DISKLABEL 1362 if (newlabel != NULL) 1363 free(newlabel, M_TEMP); 1364 #endif 1365 return error; 1366 } 1367 1368 case DIOCKLABEL: 1369 if (*(int *)addr) 1370 wd->sc_flags |= WDF_KLABEL; 1371 else 1372 wd->sc_flags &= ~WDF_KLABEL; 1373 return 0; 1374 1375 case DIOCWLABEL: 1376 if ((flag & FWRITE) == 0) 1377 return EBADF; 1378 if (*(int *)addr) 1379 wd->sc_flags |= WDF_WLABEL; 1380 else 1381 wd->sc_flags &= ~WDF_WLABEL; 1382 return 0; 1383 1384 case DIOCGDEFLABEL: 1385 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1386 return 0; 1387 #ifdef __HAVE_OLD_DISKLABEL 1388 case ODIOCGDEFLABEL: 1389 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1390 if (newlabel == NULL) 1391 return EIO; 1392 wdgetdefaultlabel(wd, newlabel); 1393 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1394 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1395 else 1396 error = ENOTTY; 1397 free(newlabel, M_TEMP); 1398 return error; 1399 #endif 1400 1401 #ifdef notyet 1402 case DIOCWFORMAT: 1403 if ((flag & FWRITE) == 0) 1404 return EBADF; 1405 { 1406 register struct format_op *fop; 1407 struct iovec aiov; 1408 struct uio auio; 1409 1410 fop = (struct format_op *)addr; 1411 aiov.iov_base = fop->df_buf; 1412 aiov.iov_len = fop->df_count; 1413 auio.uio_iov = &aiov; 1414 auio.uio_iovcnt = 1; 1415 auio.uio_resid = fop->df_count; 1416 auio.uio_offset = 1417 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1418 auio.uio_vmspace = l->l_proc->p_vmspace; 1419 error = physio(wdformat, NULL, dev, B_WRITE, minphys, 1420 &auio); 1421 fop->df_count -= auio.uio_resid; 1422 fop->df_reg[0] = wdc->sc_status; 1423 fop->df_reg[1] = wdc->sc_error; 1424 return error; 1425 } 1426 #endif 1427 case DIOCGCACHE: 1428 return wd_getcache(wd, (int *)addr); 1429 1430 case DIOCSCACHE: 1431 return wd_setcache(wd, *(int *)addr); 1432 1433 case DIOCCACHESYNC: 1434 return wd_flushcache(wd, AT_WAIT); 1435 1436 case ATAIOCCOMMAND: 1437 /* 1438 * Make sure this command is (relatively) safe first 1439 */ 1440 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1441 (flag & FWRITE) == 0) 1442 return (EBADF); 1443 { 1444 struct wd_ioctl *wi; 1445 atareq_t *atareq = (atareq_t *) addr; 1446 int error1; 1447 1448 wi = wi_get(); 1449 wi->wi_softc = wd; 1450 wi->wi_atareq = *atareq; 1451 1452 if (atareq->datalen && atareq->flags & 1453 (ATACMD_READ | ATACMD_WRITE)) { 1454 void *tbuf; 1455 if (atareq->datalen < DEV_BSIZE 1456 && atareq->command == WDCC_IDENTIFY) { 1457 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1458 wi->wi_iov.iov_base = tbuf; 1459 wi->wi_iov.iov_len = DEV_BSIZE; 1460 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1461 } else { 1462 tbuf = NULL; 1463 wi->wi_iov.iov_base = atareq->databuf; 1464 wi->wi_iov.iov_len = atareq->datalen; 1465 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1466 } 1467 wi->wi_uio.uio_iov = &wi->wi_iov; 1468 wi->wi_uio.uio_iovcnt = 1; 1469 wi->wi_uio.uio_resid = atareq->datalen; 1470 wi->wi_uio.uio_offset = 0; 1471 wi->wi_uio.uio_rw = 1472 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1473 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1474 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1475 minphys, &wi->wi_uio); 1476 if (tbuf != NULL && error1 == 0) { 1477 error1 = copyout(tbuf, atareq->databuf, 1478 atareq->datalen); 1479 free(tbuf, M_TEMP); 1480 } 1481 } else { 1482 /* No need to call physio if we don't have any 1483 user data */ 1484 wi->wi_bp.b_flags = 0; 1485 wi->wi_bp.b_data = 0; 1486 wi->wi_bp.b_bcount = 0; 1487 wi->wi_bp.b_dev = 0; 1488 wi->wi_bp.b_proc = l->l_proc; 1489 wdioctlstrategy(&wi->wi_bp); 1490 error1 = wi->wi_bp.b_error; 1491 } 1492 *atareq = wi->wi_atareq; 1493 wi_free(wi); 1494 return(error1); 1495 } 1496 1497 case DIOCAWEDGE: 1498 { 1499 struct dkwedge_info *dkw = (void *) addr; 1500 1501 if ((flag & FWRITE) == 0) 1502 return (EBADF); 1503 1504 /* If the ioctl happens here, the parent is us. */ 1505 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1506 return (dkwedge_add(dkw)); 1507 } 1508 1509 case DIOCDWEDGE: 1510 { 1511 struct dkwedge_info *dkw = (void *) addr; 1512 1513 if ((flag & FWRITE) == 0) 1514 return (EBADF); 1515 1516 /* If the ioctl happens here, the parent is us. */ 1517 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1518 return (dkwedge_del(dkw)); 1519 } 1520 1521 case DIOCLWEDGES: 1522 { 1523 struct dkwedge_list *dkwl = (void *) addr; 1524 1525 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1526 } 1527 1528 case DIOCGSTRATEGY: 1529 { 1530 struct disk_strategy *dks = (void *)addr; 1531 1532 s = splbio(); 1533 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1534 sizeof(dks->dks_name)); 1535 splx(s); 1536 dks->dks_paramlen = 0; 1537 1538 return 0; 1539 } 1540 1541 case DIOCSSTRATEGY: 1542 { 1543 struct disk_strategy *dks = (void *)addr; 1544 struct bufq_state *new; 1545 struct bufq_state *old; 1546 1547 if ((flag & FWRITE) == 0) { 1548 return EBADF; 1549 } 1550 if (dks->dks_param != NULL) { 1551 return EINVAL; 1552 } 1553 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1554 error = bufq_alloc(&new, dks->dks_name, 1555 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1556 if (error) { 1557 return error; 1558 } 1559 s = splbio(); 1560 old = wd->sc_q; 1561 bufq_move(new, old); 1562 wd->sc_q = new; 1563 splx(s); 1564 bufq_free(old); 1565 1566 return 0; 1567 } 1568 1569 default: 1570 return ENOTTY; 1571 } 1572 1573 #ifdef DIAGNOSTIC 1574 panic("wdioctl: impossible"); 1575 #endif 1576 } 1577 1578 #ifdef B_FORMAT 1579 int 1580 wdformat(struct buf *bp) 1581 { 1582 1583 bp->b_flags |= B_FORMAT; 1584 return wdstrategy(bp); 1585 } 1586 #endif 1587 1588 int 1589 wdsize(dev_t dev) 1590 { 1591 struct wd_softc *wd; 1592 int part, omask; 1593 int size; 1594 1595 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1596 1597 wd = device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1598 if (wd == NULL) 1599 return (-1); 1600 1601 part = WDPART(dev); 1602 omask = wd->sc_dk.dk_openmask & (1 << part); 1603 1604 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1605 return (-1); 1606 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1607 size = -1; 1608 else 1609 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1610 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1611 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1612 return (-1); 1613 return (size); 1614 } 1615 1616 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1617 static int wddoingadump = 0; 1618 static int wddumprecalibrated = 0; 1619 1620 /* 1621 * Dump core after a system crash. 1622 */ 1623 int 1624 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1625 { 1626 struct wd_softc *wd; /* disk unit to do the I/O */ 1627 struct disklabel *lp; /* disk's disklabel */ 1628 int part, err; 1629 int nblks; /* total number of sectors left to write */ 1630 1631 /* Check if recursive dump; if so, punt. */ 1632 if (wddoingadump) 1633 return EFAULT; 1634 wddoingadump = 1; 1635 1636 wd = device_private(device_lookup(&wd_cd, WDUNIT(dev))); 1637 if (wd == NULL) 1638 return (ENXIO); 1639 1640 part = WDPART(dev); 1641 1642 /* Convert to disk sectors. Request must be a multiple of size. */ 1643 lp = wd->sc_dk.dk_label; 1644 if ((size % lp->d_secsize) != 0) 1645 return EFAULT; 1646 nblks = size / lp->d_secsize; 1647 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1648 1649 /* Check transfer bounds against partition size. */ 1650 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1651 return EINVAL; 1652 1653 /* Offset block number to start of partition. */ 1654 blkno += lp->d_partitions[part].p_offset; 1655 1656 /* Recalibrate, if first dump transfer. */ 1657 if (wddumprecalibrated == 0) { 1658 wddumprecalibrated = 1; 1659 (*wd->atabus->ata_reset_drive)(wd->drvp, 1660 AT_POLL | AT_RST_EMERG); 1661 wd->drvp->state = RESET; 1662 } 1663 1664 wd->sc_bp = NULL; 1665 wd->sc_wdc_bio.blkno = blkno; 1666 wd->sc_wdc_bio.flags = ATA_POLL; 1667 if (wd->sc_flags & WDF_LBA48 && 1668 (blkno > LBA48_THRESHOLD || 1669 (wd->sc_quirks & WD_QUIRK_FORCE_LBA48) != 0)) 1670 wd->sc_wdc_bio.flags |= ATA_LBA48; 1671 if (wd->sc_flags & WDF_LBA) 1672 wd->sc_wdc_bio.flags |= ATA_LBA; 1673 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1674 wd->sc_wdc_bio.databuf = va; 1675 #ifndef WD_DUMP_NOT_TRUSTED 1676 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1677 case ATACMD_TRY_AGAIN: 1678 panic("wddump: try again"); 1679 break; 1680 case ATACMD_QUEUED: 1681 panic("wddump: polled command has been queued"); 1682 break; 1683 case ATACMD_COMPLETE: 1684 break; 1685 } 1686 switch(wd->sc_wdc_bio.error) { 1687 case TIMEOUT: 1688 printf("wddump: device timed out"); 1689 err = EIO; 1690 break; 1691 case ERR_DF: 1692 printf("wddump: drive fault"); 1693 err = EIO; 1694 break; 1695 case ERR_DMA: 1696 printf("wddump: DMA error"); 1697 err = EIO; 1698 break; 1699 case ERROR: 1700 printf("wddump: "); 1701 wdperror(wd); 1702 err = EIO; 1703 break; 1704 case NOERROR: 1705 err = 0; 1706 break; 1707 default: 1708 panic("wddump: unknown error type"); 1709 } 1710 if (err != 0) { 1711 printf("\n"); 1712 return err; 1713 } 1714 #else /* WD_DUMP_NOT_TRUSTED */ 1715 /* Let's just talk about this first... */ 1716 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1717 unit, va, cylin, head, sector); 1718 delay(500 * 1000); /* half a second */ 1719 #endif 1720 1721 wddoingadump = 0; 1722 return 0; 1723 } 1724 1725 #ifdef HAS_BAD144_HANDLING 1726 /* 1727 * Internalize the bad sector table. 1728 */ 1729 void 1730 bad144intern(struct wd_softc *wd) 1731 { 1732 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1733 struct disklabel *lp = wd->sc_dk.dk_label; 1734 int i = 0; 1735 1736 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1737 1738 for (; i < NBT_BAD; i++) { 1739 if (bt->bt_bad[i].bt_cyl == 0xffff) 1740 break; 1741 wd->sc_badsect[i] = 1742 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1743 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1744 (bt->bt_bad[i].bt_trksec & 0xff); 1745 } 1746 for (; i < NBT_BAD+1; i++) 1747 wd->sc_badsect[i] = -1; 1748 } 1749 #endif 1750 1751 static void 1752 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1753 { 1754 prop_dictionary_t disk_info, odisk_info, geom; 1755 const char *cp; 1756 1757 disk_info = prop_dictionary_create(); 1758 1759 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1760 cp = "ST506"; 1761 else { 1762 /* XXX Should have a case for ATA here, too. */ 1763 cp = "ESDI"; 1764 } 1765 prop_dictionary_set_cstring_nocopy(disk_info, "type", cp); 1766 1767 geom = prop_dictionary_create(); 1768 1769 prop_dictionary_set_uint64(geom, "sectors-per-unit", wd->sc_capacity); 1770 1771 prop_dictionary_set_uint32(geom, "sector-size", 1772 DEV_BSIZE /* XXX 512? */); 1773 1774 prop_dictionary_set_uint16(geom, "sectors-per-track", 1775 wd->sc_params.atap_sectors); 1776 1777 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 1778 wd->sc_params.atap_heads); 1779 1780 if (wd->sc_flags & WDF_LBA) 1781 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 1782 wd->sc_capacity / 1783 (wd->sc_params.atap_heads * 1784 wd->sc_params.atap_sectors)); 1785 else 1786 prop_dictionary_set_uint16(geom, "cylinders-per-unit", 1787 wd->sc_params.atap_cylinders); 1788 1789 prop_dictionary_set(disk_info, "geometry", geom); 1790 prop_object_release(geom); 1791 1792 prop_dictionary_set(device_properties(wd->sc_dev), 1793 "disk-info", disk_info); 1794 1795 /* 1796 * Don't release disk_info here; we keep a reference to it. 1797 * disk_detach() will release it when we go away. 1798 */ 1799 1800 odisk_info = wd->sc_dk.dk_info; 1801 wd->sc_dk.dk_info = disk_info; 1802 if (odisk_info) 1803 prop_object_release(odisk_info); 1804 } 1805 1806 int 1807 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1808 { 1809 1810 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1811 case CMD_AGAIN: 1812 return 1; 1813 case CMD_ERR: 1814 /* 1815 * We `know' there's a drive here; just assume it's old. 1816 * This geometry is only used to read the MBR and print a 1817 * (false) attach message. 1818 */ 1819 strncpy(params->atap_model, "ST506", 1820 sizeof params->atap_model); 1821 params->atap_config = ATA_CFG_FIXED; 1822 params->atap_cylinders = 1024; 1823 params->atap_heads = 8; 1824 params->atap_sectors = 17; 1825 params->atap_multi = 1; 1826 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1827 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1828 /* FALLTHROUGH */ 1829 case CMD_OK: 1830 wd_params_to_properties(wd, params); 1831 return 0; 1832 default: 1833 panic("wd_get_params: bad return code from ata_get_params"); 1834 /* NOTREACHED */ 1835 } 1836 } 1837 1838 int 1839 wd_getcache(struct wd_softc *wd, int *bitsp) 1840 { 1841 struct ataparams params; 1842 1843 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1844 return EIO; 1845 if (params.atap_cmd_set1 == 0x0000 || 1846 params.atap_cmd_set1 == 0xffff || 1847 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1848 *bitsp = 0; 1849 return 0; 1850 } 1851 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1852 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1853 *bitsp |= DKCACHE_WRITE; 1854 1855 return 0; 1856 } 1857 1858 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1859 1860 int 1861 wd_setcache(struct wd_softc *wd, int bits) 1862 { 1863 struct ataparams params; 1864 struct ata_command ata_c; 1865 1866 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1867 return EIO; 1868 1869 if (params.atap_cmd_set1 == 0x0000 || 1870 params.atap_cmd_set1 == 0xffff || 1871 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1872 return EOPNOTSUPP; 1873 1874 if ((bits & DKCACHE_READ) == 0 || 1875 (bits & DKCACHE_SAVE) != 0) 1876 return EOPNOTSUPP; 1877 1878 memset(&ata_c, 0, sizeof(struct ata_command)); 1879 ata_c.r_command = SET_FEATURES; 1880 ata_c.r_st_bmask = 0; 1881 ata_c.r_st_pmask = 0; 1882 ata_c.timeout = 30000; /* 30s timeout */ 1883 ata_c.flags = AT_WAIT; 1884 if (bits & DKCACHE_WRITE) 1885 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1886 else 1887 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1888 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1889 aprint_error_dev(wd->sc_dev, 1890 "wd_setcache command not complete\n"); 1891 return EIO; 1892 } 1893 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1894 char sbuf[sizeof(at_errbits) + 64]; 1895 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1896 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1897 return EIO; 1898 } 1899 return 0; 1900 } 1901 1902 static int 1903 wd_standby(struct wd_softc *wd, int flags) 1904 { 1905 struct ata_command ata_c; 1906 1907 memset(&ata_c, 0, sizeof(struct ata_command)); 1908 ata_c.r_command = WDCC_STANDBY_IMMED; 1909 ata_c.r_st_bmask = WDCS_DRDY; 1910 ata_c.r_st_pmask = WDCS_DRDY; 1911 ata_c.flags = flags; 1912 ata_c.timeout = 30000; /* 30s timeout */ 1913 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1914 aprint_error_dev(wd->sc_dev, 1915 "standby immediate command didn't complete\n"); 1916 return EIO; 1917 } 1918 if (ata_c.flags & AT_ERROR) { 1919 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1920 return ENODEV; 1921 } 1922 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1923 char sbuf[sizeof(at_errbits) + 64]; 1924 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1925 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1926 return EIO; 1927 } 1928 return 0; 1929 } 1930 1931 int 1932 wd_flushcache(struct wd_softc *wd, int flags) 1933 { 1934 struct ata_command ata_c; 1935 1936 /* 1937 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1938 * only ATA-2 and still support it. 1939 */ 1940 if (wd->drvp->ata_vers < 4 && 1941 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1942 wd->sc_params.atap_cmd_set2 == 0xffff)) 1943 return ENODEV; 1944 memset(&ata_c, 0, sizeof(struct ata_command)); 1945 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1946 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) 1947 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1948 else 1949 ata_c.r_command = WDCC_FLUSHCACHE; 1950 ata_c.r_st_bmask = WDCS_DRDY; 1951 ata_c.r_st_pmask = WDCS_DRDY; 1952 ata_c.flags = flags; 1953 ata_c.timeout = 30000; /* 30s timeout */ 1954 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1955 aprint_error_dev(wd->sc_dev, 1956 "flush cache command didn't complete\n"); 1957 return EIO; 1958 } 1959 if (ata_c.flags & AT_ERROR) { 1960 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1961 return ENODEV; 1962 } 1963 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1964 char sbuf[sizeof(at_errbits) + 64]; 1965 bitmask_snprintf(ata_c.flags, at_errbits, sbuf, sizeof(sbuf)); 1966 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1967 sbuf); 1968 return EIO; 1969 } 1970 return 0; 1971 } 1972 1973 bool 1974 wd_shutdown(device_t dev, int how) 1975 { 1976 1977 struct wd_softc *wd = device_private(dev); 1978 wd_flushcache(wd, AT_POLL); 1979 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 1980 wd_standby(wd, AT_POLL); 1981 return true; 1982 } 1983 1984 /* 1985 * Allocate space for a ioctl queue structure. Mostly taken from 1986 * scsipi_ioctl.c 1987 */ 1988 struct wd_ioctl * 1989 wi_get(void) 1990 { 1991 struct wd_ioctl *wi; 1992 int s; 1993 1994 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1995 buf_init(&wi->wi_bp); 1996 s = splbio(); 1997 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 1998 splx(s); 1999 return (wi); 2000 } 2001 2002 /* 2003 * Free an ioctl structure and remove it from our list 2004 */ 2005 2006 void 2007 wi_free(struct wd_ioctl *wi) 2008 { 2009 int s; 2010 2011 s = splbio(); 2012 LIST_REMOVE(wi, wi_list); 2013 splx(s); 2014 buf_destroy(&wi->wi_bp); 2015 free(wi, M_TEMP); 2016 } 2017 2018 /* 2019 * Find a wd_ioctl structure based on the struct buf. 2020 */ 2021 2022 struct wd_ioctl * 2023 wi_find(struct buf *bp) 2024 { 2025 struct wd_ioctl *wi; 2026 int s; 2027 2028 s = splbio(); 2029 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2030 if (bp == &wi->wi_bp) 2031 break; 2032 splx(s); 2033 return (wi); 2034 } 2035 2036 /* 2037 * Ioctl pseudo strategy routine 2038 * 2039 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2040 * happens here is: 2041 * 2042 * - wdioctl() queues a wd_ioctl structure. 2043 * 2044 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2045 * user space I/O is required. If physio() is called, physio() eventually 2046 * calls wdioctlstrategy(). 2047 * 2048 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2049 * to perform the actual command 2050 * 2051 * The reason for the use of the pseudo strategy routine is because 2052 * when doing I/O to/from user space, physio _really_ wants to be in 2053 * the loop. We could put the entire buffer into the ioctl request 2054 * structure, but that won't scale if we want to do things like download 2055 * microcode. 2056 */ 2057 2058 void 2059 wdioctlstrategy(struct buf *bp) 2060 { 2061 struct wd_ioctl *wi; 2062 struct ata_command ata_c; 2063 int error = 0; 2064 2065 wi = wi_find(bp); 2066 if (wi == NULL) { 2067 printf("wdioctlstrategy: " 2068 "No matching ioctl request found in queue\n"); 2069 error = EINVAL; 2070 goto bad; 2071 } 2072 2073 memset(&ata_c, 0, sizeof(ata_c)); 2074 2075 /* 2076 * Abort if physio broke up the transfer 2077 */ 2078 2079 if (bp->b_bcount != wi->wi_atareq.datalen) { 2080 printf("physio split wd ioctl request... cannot proceed\n"); 2081 error = EIO; 2082 goto bad; 2083 } 2084 2085 /* 2086 * Abort if we didn't get a buffer size that was a multiple of 2087 * our sector size (or was larger than NBBY) 2088 */ 2089 2090 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2091 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2092 (1 << NBBY)) { 2093 error = EINVAL; 2094 goto bad; 2095 } 2096 2097 /* 2098 * Make sure a timeout was supplied in the ioctl request 2099 */ 2100 2101 if (wi->wi_atareq.timeout == 0) { 2102 error = EINVAL; 2103 goto bad; 2104 } 2105 2106 if (wi->wi_atareq.flags & ATACMD_READ) 2107 ata_c.flags |= AT_READ; 2108 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2109 ata_c.flags |= AT_WRITE; 2110 2111 if (wi->wi_atareq.flags & ATACMD_READREG) 2112 ata_c.flags |= AT_READREG; 2113 2114 ata_c.flags |= AT_WAIT; 2115 2116 ata_c.timeout = wi->wi_atareq.timeout; 2117 ata_c.r_command = wi->wi_atareq.command; 2118 ata_c.r_head = wi->wi_atareq.head & 0x0f; 2119 ata_c.r_cyl = wi->wi_atareq.cylinder; 2120 ata_c.r_sector = wi->wi_atareq.sec_num; 2121 ata_c.r_count = wi->wi_atareq.sec_count; 2122 ata_c.r_features = wi->wi_atareq.features; 2123 ata_c.r_st_bmask = WDCS_DRDY; 2124 ata_c.r_st_pmask = WDCS_DRDY; 2125 ata_c.data = wi->wi_bp.b_data; 2126 ata_c.bcount = wi->wi_bp.b_bcount; 2127 2128 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2129 != ATACMD_COMPLETE) { 2130 wi->wi_atareq.retsts = ATACMD_ERROR; 2131 goto bad; 2132 } 2133 2134 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2135 if (ata_c.flags & AT_ERROR) { 2136 wi->wi_atareq.retsts = ATACMD_ERROR; 2137 wi->wi_atareq.error = ata_c.r_error; 2138 } else if (ata_c.flags & AT_DF) 2139 wi->wi_atareq.retsts = ATACMD_DF; 2140 else 2141 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2142 } else { 2143 wi->wi_atareq.retsts = ATACMD_OK; 2144 if (wi->wi_atareq.flags & ATACMD_READREG) { 2145 wi->wi_atareq.head = ata_c.r_head ; 2146 wi->wi_atareq.cylinder = ata_c.r_cyl; 2147 wi->wi_atareq.sec_num = ata_c.r_sector; 2148 wi->wi_atareq.sec_count = ata_c.r_count; 2149 wi->wi_atareq.features = ata_c.r_features; 2150 wi->wi_atareq.error = ata_c.r_error; 2151 } 2152 } 2153 2154 bp->b_error = 0; 2155 biodone(bp); 2156 return; 2157 bad: 2158 bp->b_error = error; 2159 biodone(bp); 2160 } 2161
Indexes created Sun Oct 19 02:09:48 GMT 2025