wd.c revision 1.403
1 /* $NetBSD: wd.c,v 1.403 2013/05/29 00:47:48 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Manuel Bouyer. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 /*- 28 * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. 29 * All rights reserved. 30 * 31 * This code is derived from software contributed to The NetBSD Foundation 32 * by Charles M. Hannum and by Onno van der Linden. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 43 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 44 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 45 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 46 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 47 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 48 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 49 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 50 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 51 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 52 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 53 * POSSIBILITY OF SUCH DAMAGE. 54 */ 55 56 #include <sys/cdefs.h> 57 __KERNEL_RCSID(0, "$NetBSD: wd.c,v 1.403 2013/05/29 00:47:48 christos Exp $"); 58 59 #include "opt_ata.h" 60 61 #include <sys/param.h> 62 #include <sys/systm.h> 63 #include <sys/kernel.h> 64 #include <sys/conf.h> 65 #include <sys/file.h> 66 #include <sys/stat.h> 67 #include <sys/ioctl.h> 68 #include <sys/buf.h> 69 #include <sys/bufq.h> 70 #include <sys/uio.h> 71 #include <sys/malloc.h> 72 #include <sys/device.h> 73 #include <sys/disklabel.h> 74 #include <sys/disk.h> 75 #include <sys/syslog.h> 76 #include <sys/proc.h> 77 #include <sys/reboot.h> 78 #include <sys/vnode.h> 79 #include <sys/rnd.h> 80 81 #include <sys/intr.h> 82 #include <sys/bus.h> 83 84 #include <dev/ata/atareg.h> 85 #include <dev/ata/atavar.h> 86 #include <dev/ata/wdvar.h> 87 #include <dev/ic/wdcreg.h> 88 #include <sys/ataio.h> 89 #include "locators.h" 90 91 #include <prop/proplib.h> 92 93 #define WDIORETRIES_SINGLE 4 /* number of retries before single-sector */ 94 #define WDIORETRIES 5 /* number of retries before giving up */ 95 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 96 97 #define WDUNIT(dev) DISKUNIT(dev) 98 #define WDPART(dev) DISKPART(dev) 99 #define WDMINOR(unit, part) DISKMINOR(unit, part) 100 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 101 102 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 103 104 #define DEBUG_INTR 0x01 105 #define DEBUG_XFERS 0x02 106 #define DEBUG_STATUS 0x04 107 #define DEBUG_FUNCS 0x08 108 #define DEBUG_PROBE 0x10 109 #ifdef ATADEBUG 110 int wdcdebug_wd_mask = 0x0; 111 #define ATADEBUG_PRINT(args, level) \ 112 if (wdcdebug_wd_mask & (level)) \ 113 printf args 114 #else 115 #define ATADEBUG_PRINT(args, level) 116 #endif 117 118 int wdprobe(device_t, cfdata_t, void *); 119 void wdattach(device_t, device_t, void *); 120 int wddetach(device_t, int); 121 int wdprint(void *, char *); 122 void wdperror(const struct wd_softc *); 123 124 static void wdminphys(struct buf *); 125 126 static int wdlastclose(device_t); 127 static bool wd_suspend(device_t, const pmf_qual_t *); 128 static int wd_standby(struct wd_softc *, int); 129 130 CFATTACH_DECL3_NEW(wd, sizeof(struct wd_softc), 131 wdprobe, wdattach, wddetach, NULL, NULL, NULL, DVF_DETACH_SHUTDOWN); 132 133 extern struct cfdriver wd_cd; 134 135 dev_type_open(wdopen); 136 dev_type_close(wdclose); 137 dev_type_read(wdread); 138 dev_type_write(wdwrite); 139 dev_type_ioctl(wdioctl); 140 dev_type_strategy(wdstrategy); 141 dev_type_dump(wddump); 142 dev_type_size(wdsize); 143 144 const struct bdevsw wd_bdevsw = { 145 wdopen, wdclose, wdstrategy, wdioctl, wddump, wdsize, D_DISK 146 }; 147 148 const struct cdevsw wd_cdevsw = { 149 wdopen, wdclose, wdread, wdwrite, wdioctl, 150 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 151 }; 152 153 /* 154 * Glue necessary to hook WDCIOCCOMMAND into physio 155 */ 156 157 struct wd_ioctl { 158 LIST_ENTRY(wd_ioctl) wi_list; 159 struct buf wi_bp; 160 struct uio wi_uio; 161 struct iovec wi_iov; 162 atareq_t wi_atareq; 163 struct wd_softc *wi_softc; 164 }; 165 166 LIST_HEAD(, wd_ioctl) wi_head; 167 168 struct wd_ioctl *wi_find(struct buf *); 169 void wi_free(struct wd_ioctl *); 170 struct wd_ioctl *wi_get(void); 171 void wdioctlstrategy(struct buf *); 172 173 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 174 void wdgetdisklabel(struct wd_softc *); 175 void wdstart(void *); 176 void wdstart1(struct wd_softc*, struct buf *); 177 void wdrestart(void *); 178 void wddone(void *); 179 int wd_get_params(struct wd_softc *, u_int8_t, struct ataparams *); 180 int wd_flushcache(struct wd_softc *, int); 181 int wd_trim(struct wd_softc *, int, struct disk_discard_range *); 182 bool wd_shutdown(device_t, int); 183 184 int wd_getcache(struct wd_softc *, int *); 185 int wd_setcache(struct wd_softc *, int); 186 187 struct dkdriver wddkdriver = { wdstrategy, wdminphys }; 188 189 #ifdef HAS_BAD144_HANDLING 190 static void bad144intern(struct wd_softc *); 191 #endif 192 193 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 194 195 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 196 197 /* 198 * Quirk table for IDE drives. Put more-specific matches first, since 199 * a simple globing routine is used for matching. 200 */ 201 static const struct wd_quirk { 202 const char *wdq_match; /* inquiry pattern to match */ 203 int wdq_quirks; /* drive quirks */ 204 } wd_quirk_table[] = { 205 /* 206 * Some Seagate S-ATA drives have a PHY which can get confused 207 * with the way data is packetized by some S-ATA controllers. 208 * 209 * The work-around is to split in two any write transfer whose 210 * sector count % 15 == 1 (assuming 512 byte sectors). 211 * 212 * XXX This is an incomplete list. There are at least a couple 213 * XXX more model numbers. If you have trouble with such transfers 214 * XXX (8K is the most common) on Seagate S-ATA drives, please 215 * XXX notify thorpej (at) NetBSD.org. 216 * 217 * The ST360015AS has not yet been confirmed to have this 218 * issue, however, it is the only other drive in the 219 * Seagate Barracuda Serial ATA V family. 220 * 221 */ 222 { "ST3120023AS", 223 WD_QUIRK_SPLIT_MOD15_WRITE }, 224 { "ST380023AS", 225 WD_QUIRK_SPLIT_MOD15_WRITE }, 226 { "ST360015AS", 227 WD_QUIRK_SPLIT_MOD15_WRITE }, 228 { NULL, 229 0 } 230 }; 231 232 static const struct wd_quirk * 233 wd_lookup_quirks(const char *name) 234 { 235 const struct wd_quirk *wdq; 236 const char *estr; 237 238 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 239 /* 240 * We only want exact matches (which include matches 241 * against globbing characters). 242 */ 243 if (pmatch(name, wdq->wdq_match, &estr) == 2) 244 return (wdq); 245 } 246 return (NULL); 247 } 248 249 int 250 wdprobe(device_t parent, cfdata_t match, void *aux) 251 { 252 struct ata_device *adev = aux; 253 254 if (adev == NULL) 255 return 0; 256 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 257 return 0; 258 259 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 260 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 261 return 0; 262 return 1; 263 } 264 265 void 266 wdattach(device_t parent, device_t self, void *aux) 267 { 268 struct wd_softc *wd = device_private(self); 269 struct ata_device *adev= aux; 270 int i, blank; 271 char tbuf[41], pbuf[9], c, *p, *q; 272 const struct wd_quirk *wdq; 273 274 wd->sc_dev = self; 275 276 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 277 callout_init(&wd->sc_restart_ch, 0); 278 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 279 #ifdef WD_SOFTBADSECT 280 SLIST_INIT(&wd->sc_bslist); 281 #endif 282 wd->atabus = adev->adev_bustype; 283 wd->openings = adev->adev_openings; 284 wd->drvp = adev->adev_drv_data; 285 286 wd->drvp->drv_done = wddone; 287 wd->drvp->drv_softc = wd->sc_dev; /* done in atabusconfig_thread() 288 but too late */ 289 290 aprint_naive("\n"); 291 aprint_normal("\n"); 292 293 /* read our drive info */ 294 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 295 aprint_error_dev(self, "IDENTIFY failed\n"); 296 goto out; 297 } 298 299 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 300 i < sizeof(wd->sc_params.atap_model); i++) { 301 c = *p++; 302 if (c == '\0') 303 break; 304 if (c != ' ') { 305 if (blank) { 306 *q++ = ' '; 307 blank = 0; 308 } 309 *q++ = c; 310 } else 311 blank = 1; 312 } 313 *q++ = '\0'; 314 315 aprint_normal_dev(self, "<%s>\n", tbuf); 316 317 wdq = wd_lookup_quirks(tbuf); 318 if (wdq != NULL) 319 wd->sc_quirks = wdq->wdq_quirks; 320 321 if (wd->sc_quirks != 0) { 322 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 323 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 324 aprint_normal_dev(self, "quirks %s\n", sbuf); 325 } 326 327 if ((wd->sc_params.atap_multi & 0xff) > 1) { 328 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 329 } else { 330 wd->sc_multi = 1; 331 } 332 333 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 334 wd->sc_multi); 335 336 /* 48-bit LBA addressing */ 337 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 338 wd->sc_flags |= WDF_LBA48; 339 340 /* Prior to ATA-4, LBA was optional. */ 341 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 342 wd->sc_flags |= WDF_LBA; 343 #if 0 344 /* ATA-4 requires LBA. */ 345 if (wd->sc_params.atap_ataversion != 0xffff && 346 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 347 wd->sc_flags |= WDF_LBA; 348 #endif 349 350 if ((wd->sc_flags & WDF_LBA48) != 0) { 351 aprint_verbose(" LBA48 addressing\n"); 352 wd->sc_capacity = 353 ((u_int64_t) wd->sc_params.atap_max_lba[3] << 48) | 354 ((u_int64_t) wd->sc_params.atap_max_lba[2] << 32) | 355 ((u_int64_t) wd->sc_params.atap_max_lba[1] << 16) | 356 ((u_int64_t) wd->sc_params.atap_max_lba[0] << 0); 357 wd->sc_capacity28 = 358 (wd->sc_params.atap_capacity[1] << 16) | 359 wd->sc_params.atap_capacity[0]; 360 } else if ((wd->sc_flags & WDF_LBA) != 0) { 361 aprint_verbose(" LBA addressing\n"); 362 wd->sc_capacity28 = wd->sc_capacity = 363 (wd->sc_params.atap_capacity[1] << 16) | 364 wd->sc_params.atap_capacity[0]; 365 } else { 366 aprint_verbose(" chs addressing\n"); 367 wd->sc_capacity28 = wd->sc_capacity = 368 wd->sc_params.atap_cylinders * 369 wd->sc_params.atap_heads * 370 wd->sc_params.atap_sectors; 371 } 372 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 373 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 374 "%d bytes/sect x %llu sectors\n", 375 pbuf, 376 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 377 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 378 wd->sc_params.atap_cylinders, 379 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 380 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 381 382 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 383 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 384 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 385 out: 386 /* 387 * Initialize and attach the disk structure. 388 */ 389 /* we fill in dk_info later */ 390 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 391 disk_attach(&wd->sc_dk); 392 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 393 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 394 RND_TYPE_DISK, 0); 395 396 /* Discover wedges on this disk. */ 397 dkwedge_discover(&wd->sc_dk); 398 399 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 400 aprint_error_dev(self, "couldn't establish power handler\n"); 401 } 402 403 static bool 404 wd_suspend(device_t dv, const pmf_qual_t *qual) 405 { 406 struct wd_softc *sc = device_private(dv); 407 408 wd_flushcache(sc, AT_WAIT); 409 wd_standby(sc, AT_WAIT); 410 return true; 411 } 412 413 int 414 wddetach(device_t self, int flags) 415 { 416 struct wd_softc *sc = device_private(self); 417 int bmaj, cmaj, i, mn, rc, s; 418 419 if ((rc = disk_begindetach(&sc->sc_dk, wdlastclose, self, flags)) != 0) 420 return rc; 421 422 /* locate the major number */ 423 bmaj = bdevsw_lookup_major(&wd_bdevsw); 424 cmaj = cdevsw_lookup_major(&wd_cdevsw); 425 426 /* Nuke the vnodes for any open instances. */ 427 for (i = 0; i < MAXPARTITIONS; i++) { 428 mn = WDMINOR(device_unit(self), i); 429 vdevgone(bmaj, mn, mn, VBLK); 430 vdevgone(cmaj, mn, mn, VCHR); 431 } 432 433 /* Delete all of our wedges. */ 434 dkwedge_delall(&sc->sc_dk); 435 436 s = splbio(); 437 438 /* Kill off any queued buffers. */ 439 bufq_drain(sc->sc_q); 440 441 bufq_free(sc->sc_q); 442 sc->atabus->ata_killpending(sc->drvp); 443 444 splx(s); 445 446 /* Detach disk. */ 447 disk_detach(&sc->sc_dk); 448 disk_destroy(&sc->sc_dk); 449 450 #ifdef WD_SOFTBADSECT 451 /* Clean out the bad sector list */ 452 while (!SLIST_EMPTY(&sc->sc_bslist)) { 453 void *head = SLIST_FIRST(&sc->sc_bslist); 454 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 455 free(head, M_TEMP); 456 } 457 sc->sc_bscount = 0; 458 #endif 459 460 pmf_device_deregister(self); 461 462 /* Unhook the entropy source. */ 463 rnd_detach_source(&sc->rnd_source); 464 465 callout_destroy(&sc->sc_restart_ch); 466 467 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 468 sc->drvp->drive_flags = 0; 469 470 return (0); 471 } 472 473 /* 474 * Read/write routine for a buffer. Validates the arguments and schedules the 475 * transfer. Does not wait for the transfer to complete. 476 */ 477 void 478 wdstrategy(struct buf *bp) 479 { 480 struct wd_softc *wd = 481 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 482 struct disklabel *lp = wd->sc_dk.dk_label; 483 daddr_t blkno; 484 int s; 485 486 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 487 DEBUG_XFERS); 488 489 /* Valid request? */ 490 if (bp->b_blkno < 0 || 491 (bp->b_bcount % lp->d_secsize) != 0 || 492 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 493 bp->b_error = EINVAL; 494 goto done; 495 } 496 497 /* If device invalidated (e.g. media change, door open, 498 * device detachment), then error. 499 */ 500 if ((wd->sc_flags & WDF_LOADED) == 0 || 501 !device_is_enabled(wd->sc_dev)) { 502 bp->b_error = EIO; 503 goto done; 504 } 505 506 /* If it's a null transfer, return immediately. */ 507 if (bp->b_bcount == 0) 508 goto done; 509 510 /* 511 * Do bounds checking, adjust transfer. if error, process. 512 * If end of partition, just return. 513 */ 514 if (WDPART(bp->b_dev) == RAW_PART) { 515 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 516 wd->sc_capacity) <= 0) 517 goto done; 518 } else { 519 if (bounds_check_with_label(&wd->sc_dk, bp, 520 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 521 goto done; 522 } 523 524 /* 525 * Now convert the block number to absolute and put it in 526 * terms of the device's logical block size. 527 */ 528 if (lp->d_secsize >= DEV_BSIZE) 529 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 530 else 531 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 532 533 if (WDPART(bp->b_dev) != RAW_PART) 534 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 535 536 bp->b_rawblkno = blkno; 537 538 #ifdef WD_SOFTBADSECT 539 /* 540 * If the transfer about to be attempted contains only a block that 541 * is known to be bad then return an error for the transfer without 542 * even attempting to start a transfer up under the premis that we 543 * will just end up doing more retries for a transfer that will end 544 * up failing again. 545 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 546 */ 547 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 548 struct disk_badsectors *dbs; 549 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 550 551 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 552 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 553 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 554 bp->b_error = EIO; 555 goto done; 556 } 557 } 558 #endif 559 560 /* Queue transfer on drive, activate drive and controller if idle. */ 561 s = splbio(); 562 bufq_put(wd->sc_q, bp); 563 wdstart(wd); 564 splx(s); 565 return; 566 done: 567 /* Toss transfer; we're done early. */ 568 bp->b_resid = bp->b_bcount; 569 biodone(bp); 570 } 571 572 /* 573 * Queue a drive for I/O. 574 */ 575 void 576 wdstart(void *arg) 577 { 578 struct wd_softc *wd = arg; 579 struct buf *bp = NULL; 580 581 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 582 DEBUG_XFERS); 583 584 if (!device_is_active(wd->sc_dev)) 585 return; 586 587 while (wd->openings > 0) { 588 589 /* Is there a buf for us ? */ 590 if ((bp = bufq_get(wd->sc_q)) == NULL) 591 return; 592 593 /* 594 * Make the command. First lock the device 595 */ 596 wd->openings--; 597 598 wd->retries = 0; 599 wdstart1(wd, bp); 600 } 601 } 602 603 static void 604 wd_split_mod15_write(struct buf *bp) 605 { 606 struct buf *obp = bp->b_private; 607 struct wd_softc *sc = 608 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 609 int s; 610 611 if (__predict_false(bp->b_error != 0)) { 612 /* 613 * Propagate the error. If this was the first half of 614 * the original transfer, make sure to account for that 615 * in the residual. 616 */ 617 if (bp->b_data == obp->b_data) 618 bp->b_resid += bp->b_bcount; 619 goto done; 620 } 621 622 /* 623 * If this was the second half of the transfer, we're all done! 624 */ 625 if (bp->b_data != obp->b_data) 626 goto done; 627 628 /* 629 * Advance the pointer to the second half and issue that command 630 * using the same opening. 631 */ 632 bp->b_flags = obp->b_flags; 633 bp->b_oflags = obp->b_oflags; 634 bp->b_cflags = obp->b_cflags; 635 bp->b_data = (char *)bp->b_data + bp->b_bcount; 636 bp->b_blkno += (bp->b_bcount / 512); 637 bp->b_rawblkno += (bp->b_bcount / 512); 638 s = splbio(); 639 wdstart1(sc, bp); 640 splx(s); 641 return; 642 643 done: 644 obp->b_error = bp->b_error; 645 obp->b_resid = bp->b_resid; 646 s = splbio(); 647 putiobuf(bp); 648 biodone(obp); 649 sc->openings++; 650 splx(s); 651 /* wddone() will call wdstart() */ 652 } 653 654 void 655 wdstart1(struct wd_softc *wd, struct buf *bp) 656 { 657 658 /* 659 * Deal with the "split mod15 write" quirk. We just divide the 660 * transfer in two, doing the first half and then then second half 661 * with the same command opening. 662 * 663 * Note we MUST do this here, because we can't let insertion 664 * into the bufq cause the transfers to be re-merged. 665 */ 666 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 667 (bp->b_flags & B_READ) == 0 && 668 bp->b_bcount > 512 && 669 ((bp->b_bcount / 512) % 15) == 1)) { 670 struct buf *nbp; 671 672 /* already at splbio */ 673 nbp = getiobuf(NULL, false); 674 if (__predict_false(nbp == NULL)) { 675 /* No memory -- fail the iop. */ 676 bp->b_error = ENOMEM; 677 bp->b_resid = bp->b_bcount; 678 biodone(bp); 679 wd->openings++; 680 return; 681 } 682 683 nbp->b_error = 0; 684 nbp->b_proc = bp->b_proc; 685 nbp->b_dev = bp->b_dev; 686 687 nbp->b_bcount = bp->b_bcount / 2; 688 nbp->b_bufsize = bp->b_bcount / 2; 689 nbp->b_data = bp->b_data; 690 691 nbp->b_blkno = bp->b_blkno; 692 nbp->b_rawblkno = bp->b_rawblkno; 693 694 nbp->b_flags = bp->b_flags; 695 nbp->b_oflags = bp->b_oflags; 696 nbp->b_cflags = bp->b_cflags; 697 nbp->b_iodone = wd_split_mod15_write; 698 699 /* Put ptr to orig buf in b_private and use new buf */ 700 nbp->b_private = bp; 701 702 BIO_COPYPRIO(nbp, bp); 703 704 bp = nbp; 705 } 706 707 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 708 wd->sc_wdc_bio.bcount = bp->b_bcount; 709 wd->sc_wdc_bio.databuf = bp->b_data; 710 wd->sc_wdc_bio.blkdone =0; 711 KASSERT(bp == wd->sc_bp || wd->sc_bp == NULL); 712 wd->sc_bp = bp; 713 /* 714 * If we're retrying, retry in single-sector mode. This will give us 715 * the sector number of the problem, and will eventually allow the 716 * transfer to succeed. 717 */ 718 if (wd->retries >= WDIORETRIES_SINGLE) 719 wd->sc_wdc_bio.flags = ATA_SINGLE; 720 else 721 wd->sc_wdc_bio.flags = 0; 722 if (wd->sc_flags & WDF_LBA48 && 723 (wd->sc_wdc_bio.blkno + 724 wd->sc_wdc_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 725 wd->sc_capacity28) 726 wd->sc_wdc_bio.flags |= ATA_LBA48; 727 if (wd->sc_flags & WDF_LBA) 728 wd->sc_wdc_bio.flags |= ATA_LBA; 729 if (bp->b_flags & B_READ) 730 wd->sc_wdc_bio.flags |= ATA_READ; 731 /* Instrumentation. */ 732 disk_busy(&wd->sc_dk); 733 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 734 case ATACMD_TRY_AGAIN: 735 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 736 break; 737 case ATACMD_QUEUED: 738 case ATACMD_COMPLETE: 739 break; 740 default: 741 panic("wdstart1: bad return code from ata_bio()"); 742 } 743 } 744 745 void 746 wddone(void *v) 747 { 748 struct wd_softc *wd = device_private(v); 749 struct buf *bp = wd->sc_bp; 750 const char *errmsg; 751 int do_perror = 0; 752 753 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 754 DEBUG_XFERS); 755 if (bp == NULL) 756 return; 757 bp->b_resid = wd->sc_wdc_bio.bcount; 758 switch (wd->sc_wdc_bio.error) { 759 case ERR_DMA: 760 errmsg = "DMA error"; 761 goto retry; 762 case ERR_DF: 763 errmsg = "device fault"; 764 goto retry; 765 case TIMEOUT: 766 errmsg = "device timeout"; 767 goto retry; 768 case ERR_RESET: 769 errmsg = "channel reset"; 770 goto retry2; 771 case ERROR: 772 /* Don't care about media change bits */ 773 if (wd->sc_wdc_bio.r_error != 0 && 774 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 775 goto noerror; 776 errmsg = "error"; 777 do_perror = 1; 778 retry: /* Just reset and retry. Can we do more ? */ 779 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD, NULL); 780 retry2: 781 diskerr(bp, "wd", errmsg, LOG_PRINTF, 782 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 783 if (wd->retries < WDIORETRIES) 784 printf(", retrying"); 785 printf("\n"); 786 if (do_perror) 787 wdperror(wd); 788 if (wd->retries < WDIORETRIES) { 789 wd->retries++; 790 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 791 wdrestart, wd); 792 return; 793 } 794 795 #ifdef WD_SOFTBADSECT 796 /* 797 * Not all errors indicate a failed block but those that do, 798 * put the block on the bad-block list for the device. Only 799 * do this for reads because the drive should do it for writes, 800 * itself, according to Manuel. 801 */ 802 if ((bp->b_flags & B_READ) && 803 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 804 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 805 struct disk_badsectors *dbs; 806 807 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 808 dbs->dbs_min = bp->b_rawblkno; 809 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 810 microtime(&dbs->dbs_failedat); 811 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 812 wd->sc_bscount++; 813 } 814 #endif 815 bp->b_error = EIO; 816 break; 817 case NOERROR: 818 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 819 aprint_error_dev(wd->sc_dev, 820 "soft error (corrected)\n"); 821 break; 822 case ERR_NODEV: 823 bp->b_error = EIO; 824 break; 825 } 826 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 827 /* 828 * the disk or controller sometimes report a complete 829 * xfer, when there has been an error. This is wrong, 830 * assume nothing got transfered in this case 831 */ 832 bp->b_resid = bp->b_bcount; 833 } 834 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 835 (bp->b_flags & B_READ)); 836 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 837 /* XXX Yuck, but we don't want to increment openings in this case */ 838 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 839 biodone(bp); 840 else { 841 biodone(bp); 842 wd->openings++; 843 } 844 KASSERT(wd->sc_bp != NULL); 845 wd->sc_bp = NULL; 846 wdstart(wd); 847 } 848 849 void 850 wdrestart(void *v) 851 { 852 struct wd_softc *wd = v; 853 struct buf *bp = wd->sc_bp; 854 int s; 855 856 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 857 DEBUG_XFERS); 858 s = splbio(); 859 wdstart1(v, bp); 860 splx(s); 861 } 862 863 static void 864 wdminphys(struct buf *bp) 865 { 866 867 if (bp->b_bcount > (512 * 128)) { 868 bp->b_bcount = (512 * 128); 869 } 870 minphys(bp); 871 } 872 873 int 874 wdread(dev_t dev, struct uio *uio, int flags) 875 { 876 877 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 878 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 879 } 880 881 int 882 wdwrite(dev_t dev, struct uio *uio, int flags) 883 { 884 885 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 886 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 887 } 888 889 int 890 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 891 { 892 struct wd_softc *wd; 893 int part, error; 894 895 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 896 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 897 if (wd == NULL) 898 return (ENXIO); 899 900 if (! device_is_active(wd->sc_dev)) 901 return (ENODEV); 902 903 if (wd->sc_capacity == 0) 904 return (ENODEV); 905 906 part = WDPART(dev); 907 908 mutex_enter(&wd->sc_dk.dk_openlock); 909 910 /* 911 * If there are wedges, and this is not RAW_PART, then we 912 * need to fail. 913 */ 914 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 915 error = EBUSY; 916 goto bad1; 917 } 918 919 /* 920 * If this is the first open of this device, add a reference 921 * to the adapter. 922 */ 923 if (wd->sc_dk.dk_openmask == 0 && 924 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 925 goto bad1; 926 927 if (wd->sc_dk.dk_openmask != 0) { 928 /* 929 * If any partition is open, but the disk has been invalidated, 930 * disallow further opens. 931 */ 932 if ((wd->sc_flags & WDF_LOADED) == 0) { 933 error = EIO; 934 goto bad2; 935 } 936 } else { 937 if ((wd->sc_flags & WDF_LOADED) == 0) { 938 939 /* Load the physical device parameters. */ 940 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 941 aprint_error_dev(wd->sc_dev, 942 "IDENTIFY failed\n"); 943 error = EIO; 944 goto bad2; 945 } 946 wd->sc_flags |= WDF_LOADED; 947 /* Load the partition info if not already loaded. */ 948 wdgetdisklabel(wd); 949 } 950 } 951 952 /* Check that the partition exists. */ 953 if (part != RAW_PART && 954 (part >= wd->sc_dk.dk_label->d_npartitions || 955 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 956 error = ENXIO; 957 goto bad2; 958 } 959 960 /* Insure only one open at a time. */ 961 switch (fmt) { 962 case S_IFCHR: 963 wd->sc_dk.dk_copenmask |= (1 << part); 964 break; 965 case S_IFBLK: 966 wd->sc_dk.dk_bopenmask |= (1 << part); 967 break; 968 } 969 wd->sc_dk.dk_openmask = 970 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 971 972 mutex_exit(&wd->sc_dk.dk_openlock); 973 return 0; 974 975 bad2: 976 if (wd->sc_dk.dk_openmask == 0) 977 wd->atabus->ata_delref(wd->drvp); 978 bad1: 979 mutex_exit(&wd->sc_dk.dk_openlock); 980 return error; 981 } 982 983 /* 984 * Caller must hold wd->sc_dk.dk_openlock. 985 */ 986 static int 987 wdlastclose(device_t self) 988 { 989 struct wd_softc *wd = device_private(self); 990 991 wd_flushcache(wd, AT_WAIT); 992 993 if (! (wd->sc_flags & WDF_KLABEL)) 994 wd->sc_flags &= ~WDF_LOADED; 995 996 wd->atabus->ata_delref(wd->drvp); 997 998 return 0; 999 } 1000 1001 int 1002 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1003 { 1004 struct wd_softc *wd = 1005 device_lookup_private(&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 wdlastclose(wd->sc_dev); 1025 1026 mutex_exit(&wd->sc_dk.dk_openlock); 1027 return 0; 1028 } 1029 1030 void 1031 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1032 { 1033 1034 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1035 memset(lp, 0, sizeof(struct disklabel)); 1036 1037 lp->d_secsize = DEV_BSIZE; 1038 lp->d_ntracks = wd->sc_params.atap_heads; 1039 lp->d_nsectors = wd->sc_params.atap_sectors; 1040 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1041 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1042 wd->sc_params.atap_cylinders; 1043 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1044 1045 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1046 lp->d_type = DTYPE_ST506; 1047 else 1048 lp->d_type = DTYPE_ESDI; 1049 1050 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1051 strncpy(lp->d_packname, "fictitious", 16); 1052 if (wd->sc_capacity > UINT32_MAX) 1053 lp->d_secperunit = UINT32_MAX; 1054 else 1055 lp->d_secperunit = wd->sc_capacity; 1056 lp->d_rpm = 3600; 1057 lp->d_interleave = 1; 1058 lp->d_flags = 0; 1059 1060 lp->d_partitions[RAW_PART].p_offset = 0; 1061 lp->d_partitions[RAW_PART].p_size = 1062 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1063 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1064 lp->d_npartitions = RAW_PART + 1; 1065 1066 lp->d_magic = DISKMAGIC; 1067 lp->d_magic2 = DISKMAGIC; 1068 lp->d_checksum = dkcksum(lp); 1069 } 1070 1071 /* 1072 * Fabricate a default disk label, and try to read the correct one. 1073 */ 1074 void 1075 wdgetdisklabel(struct wd_softc *wd) 1076 { 1077 struct disklabel *lp = wd->sc_dk.dk_label; 1078 const char *errstring; 1079 int s; 1080 1081 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1082 1083 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1084 1085 wdgetdefaultlabel(wd, lp); 1086 1087 wd->sc_badsect[0] = -1; 1088 1089 if (wd->drvp->state > RESET) { 1090 s = splbio(); 1091 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1092 splx(s); 1093 } 1094 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1095 RAW_PART), wdstrategy, lp, 1096 wd->sc_dk.dk_cpulabel); 1097 if (errstring) { 1098 /* 1099 * This probably happened because the drive's default 1100 * geometry doesn't match the DOS geometry. We 1101 * assume the DOS geometry is now in the label and try 1102 * again. XXX This is a kluge. 1103 */ 1104 if (wd->drvp->state > RESET) { 1105 s = splbio(); 1106 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1107 splx(s); 1108 } 1109 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1110 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1111 } 1112 if (errstring) { 1113 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1114 return; 1115 } 1116 1117 if (wd->drvp->state > RESET) { 1118 s = splbio(); 1119 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1120 splx(s); 1121 } 1122 #ifdef HAS_BAD144_HANDLING 1123 if ((lp->d_flags & D_BADSECT) != 0) 1124 bad144intern(wd); 1125 #endif 1126 } 1127 1128 void 1129 wdperror(const struct wd_softc *wd) 1130 { 1131 static const char *const errstr0_3[] = {"address mark not found", 1132 "track 0 not found", "aborted command", "media change requested", 1133 "id not found", "media changed", "uncorrectable data error", 1134 "bad block detected"}; 1135 static const char *const errstr4_5[] = { 1136 "obsolete (address mark not found)", 1137 "no media/write protected", "aborted command", 1138 "media change requested", "id not found", "media changed", 1139 "uncorrectable data error", "interface CRC error"}; 1140 const char *const *errstr; 1141 int i; 1142 const char *sep = ""; 1143 1144 const char *devname = device_xname(wd->sc_dev); 1145 struct ata_drive_datas *drvp = wd->drvp; 1146 int errno = wd->sc_wdc_bio.r_error; 1147 1148 if (drvp->ata_vers >= 4) 1149 errstr = errstr4_5; 1150 else 1151 errstr = errstr0_3; 1152 1153 printf("%s: (", devname); 1154 1155 if (errno == 0) 1156 printf("error not notified"); 1157 1158 for (i = 0; i < 8; i++) { 1159 if (errno & (1 << i)) { 1160 printf("%s%s", sep, errstr[i]); 1161 sep = ", "; 1162 } 1163 } 1164 printf(")\n"); 1165 } 1166 1167 int 1168 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1169 { 1170 struct wd_softc *wd = 1171 device_lookup_private(&wd_cd, WDUNIT(dev)); 1172 int error = 0, s; 1173 #ifdef __HAVE_OLD_DISKLABEL 1174 struct disklabel *newlabel = NULL; 1175 #endif 1176 1177 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1178 1179 if ((wd->sc_flags & WDF_LOADED) == 0) 1180 return EIO; 1181 1182 error = disk_ioctl(&wd->sc_dk, xfer, addr, flag, l); 1183 if (error != EPASSTHROUGH) 1184 return (error); 1185 1186 switch (xfer) { 1187 #ifdef HAS_BAD144_HANDLING 1188 case DIOCSBAD: 1189 if ((flag & FWRITE) == 0) 1190 return EBADF; 1191 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1192 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1193 bad144intern(wd); 1194 return 0; 1195 #endif 1196 #ifdef WD_SOFTBADSECT 1197 case DIOCBSLIST : 1198 { 1199 u_int32_t count, missing, skip; 1200 struct disk_badsecinfo dbsi; 1201 struct disk_badsectors *dbs; 1202 size_t available; 1203 uint8_t *laddr; 1204 1205 dbsi = *(struct disk_badsecinfo *)addr; 1206 missing = wd->sc_bscount; 1207 count = 0; 1208 available = dbsi.dbsi_bufsize; 1209 skip = dbsi.dbsi_skip; 1210 laddr = (uint8_t *)dbsi.dbsi_buffer; 1211 1212 /* 1213 * We start this loop with the expectation that all of the 1214 * entries will be missed and decrement this counter each 1215 * time we either skip over one (already copied out) or 1216 * we actually copy it back to user space. The structs 1217 * holding the bad sector information are copied directly 1218 * back to user space whilst the summary is returned via 1219 * the struct passed in via the ioctl. 1220 */ 1221 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1222 if (skip > 0) { 1223 missing--; 1224 skip--; 1225 continue; 1226 } 1227 if (available < sizeof(*dbs)) 1228 break; 1229 available -= sizeof(*dbs); 1230 copyout(dbs, laddr, sizeof(*dbs)); 1231 laddr += sizeof(*dbs); 1232 missing--; 1233 count++; 1234 } 1235 dbsi.dbsi_left = missing; 1236 dbsi.dbsi_copied = count; 1237 *(struct disk_badsecinfo *)addr = dbsi; 1238 return 0; 1239 } 1240 1241 case DIOCBSFLUSH : 1242 /* Clean out the bad sector list */ 1243 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1244 void *head = SLIST_FIRST(&wd->sc_bslist); 1245 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1246 free(head, M_TEMP); 1247 } 1248 wd->sc_bscount = 0; 1249 return 0; 1250 #endif 1251 case DIOCGDINFO: 1252 *(struct disklabel *)addr = *(wd->sc_dk.dk_label); 1253 return 0; 1254 #ifdef __HAVE_OLD_DISKLABEL 1255 case ODIOCGDINFO: 1256 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1257 if (newlabel == NULL) 1258 return EIO; 1259 *newlabel = *(wd->sc_dk.dk_label); 1260 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1261 memcpy(addr, newlabel, sizeof (struct olddisklabel)); 1262 else 1263 error = ENOTTY; 1264 free(newlabel, M_TEMP); 1265 return error; 1266 #endif 1267 1268 case DIOCGPART: 1269 ((struct partinfo *)addr)->disklab = wd->sc_dk.dk_label; 1270 ((struct partinfo *)addr)->part = 1271 &wd->sc_dk.dk_label->d_partitions[WDPART(dev)]; 1272 return 0; 1273 1274 case DIOCWDINFO: 1275 case DIOCSDINFO: 1276 #ifdef __HAVE_OLD_DISKLABEL 1277 case ODIOCWDINFO: 1278 case ODIOCSDINFO: 1279 #endif 1280 { 1281 struct disklabel *lp; 1282 1283 if ((flag & FWRITE) == 0) 1284 return EBADF; 1285 1286 #ifdef __HAVE_OLD_DISKLABEL 1287 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1288 newlabel = malloc(sizeof *newlabel, M_TEMP, 1289 M_WAITOK | M_ZERO); 1290 if (newlabel == NULL) 1291 return EIO; 1292 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1293 lp = newlabel; 1294 } else 1295 #endif 1296 lp = (struct disklabel *)addr; 1297 1298 mutex_enter(&wd->sc_dk.dk_openlock); 1299 wd->sc_flags |= WDF_LABELLING; 1300 1301 error = setdisklabel(wd->sc_dk.dk_label, 1302 lp, /*wd->sc_dk.dk_openmask : */0, 1303 wd->sc_dk.dk_cpulabel); 1304 if (error == 0) { 1305 if (wd->drvp->state > RESET) { 1306 s = splbio(); 1307 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1308 splx(s); 1309 } 1310 if (xfer == DIOCWDINFO 1311 #ifdef __HAVE_OLD_DISKLABEL 1312 || xfer == ODIOCWDINFO 1313 #endif 1314 ) 1315 error = writedisklabel(WDLABELDEV(dev), 1316 wdstrategy, wd->sc_dk.dk_label, 1317 wd->sc_dk.dk_cpulabel); 1318 } 1319 1320 wd->sc_flags &= ~WDF_LABELLING; 1321 mutex_exit(&wd->sc_dk.dk_openlock); 1322 #ifdef __HAVE_OLD_DISKLABEL 1323 if (newlabel != NULL) 1324 free(newlabel, M_TEMP); 1325 #endif 1326 return error; 1327 } 1328 1329 case DIOCKLABEL: 1330 if (*(int *)addr) 1331 wd->sc_flags |= WDF_KLABEL; 1332 else 1333 wd->sc_flags &= ~WDF_KLABEL; 1334 return 0; 1335 1336 case DIOCWLABEL: 1337 if ((flag & FWRITE) == 0) 1338 return EBADF; 1339 if (*(int *)addr) 1340 wd->sc_flags |= WDF_WLABEL; 1341 else 1342 wd->sc_flags &= ~WDF_WLABEL; 1343 return 0; 1344 1345 case DIOCGDEFLABEL: 1346 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1347 return 0; 1348 #ifdef __HAVE_OLD_DISKLABEL 1349 case ODIOCGDEFLABEL: 1350 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1351 if (newlabel == NULL) 1352 return EIO; 1353 wdgetdefaultlabel(wd, newlabel); 1354 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1355 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1356 else 1357 error = ENOTTY; 1358 free(newlabel, M_TEMP); 1359 return error; 1360 #endif 1361 1362 #ifdef notyet 1363 case DIOCWFORMAT: 1364 if ((flag & FWRITE) == 0) 1365 return EBADF; 1366 { 1367 register struct format_op *fop; 1368 struct iovec aiov; 1369 struct uio auio; 1370 1371 fop = (struct format_op *)addr; 1372 aiov.iov_base = fop->df_buf; 1373 aiov.iov_len = fop->df_count; 1374 auio.uio_iov = &aiov; 1375 auio.uio_iovcnt = 1; 1376 auio.uio_resid = fop->df_count; 1377 auio.uio_offset = 1378 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1379 auio.uio_vmspace = l->l_proc->p_vmspace; 1380 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1381 &auio); 1382 fop->df_count -= auio.uio_resid; 1383 fop->df_reg[0] = wdc->sc_status; 1384 fop->df_reg[1] = wdc->sc_error; 1385 return error; 1386 } 1387 #endif 1388 case DIOCGCACHE: 1389 return wd_getcache(wd, (int *)addr); 1390 1391 case DIOCSCACHE: 1392 return wd_setcache(wd, *(int *)addr); 1393 1394 case DIOCCACHESYNC: 1395 return wd_flushcache(wd, AT_WAIT); 1396 1397 case ATAIOCCOMMAND: 1398 /* 1399 * Make sure this command is (relatively) safe first 1400 */ 1401 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1402 (flag & FWRITE) == 0) 1403 return (EBADF); 1404 { 1405 struct wd_ioctl *wi; 1406 atareq_t *atareq = (atareq_t *) addr; 1407 int error1; 1408 1409 wi = wi_get(); 1410 wi->wi_softc = wd; 1411 wi->wi_atareq = *atareq; 1412 1413 if (atareq->datalen && atareq->flags & 1414 (ATACMD_READ | ATACMD_WRITE)) { 1415 void *tbuf; 1416 if (atareq->datalen < DEV_BSIZE 1417 && atareq->command == WDCC_IDENTIFY) { 1418 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1419 wi->wi_iov.iov_base = tbuf; 1420 wi->wi_iov.iov_len = DEV_BSIZE; 1421 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1422 } else { 1423 tbuf = NULL; 1424 wi->wi_iov.iov_base = atareq->databuf; 1425 wi->wi_iov.iov_len = atareq->datalen; 1426 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1427 } 1428 wi->wi_uio.uio_iov = &wi->wi_iov; 1429 wi->wi_uio.uio_iovcnt = 1; 1430 wi->wi_uio.uio_resid = atareq->datalen; 1431 wi->wi_uio.uio_offset = 0; 1432 wi->wi_uio.uio_rw = 1433 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1434 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1435 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1436 wdminphys, &wi->wi_uio); 1437 if (tbuf != NULL && error1 == 0) { 1438 error1 = copyout(tbuf, atareq->databuf, 1439 atareq->datalen); 1440 free(tbuf, M_TEMP); 1441 } 1442 } else { 1443 /* No need to call physio if we don't have any 1444 user data */ 1445 wi->wi_bp.b_flags = 0; 1446 wi->wi_bp.b_data = 0; 1447 wi->wi_bp.b_bcount = 0; 1448 wi->wi_bp.b_dev = 0; 1449 wi->wi_bp.b_proc = l->l_proc; 1450 wdioctlstrategy(&wi->wi_bp); 1451 error1 = wi->wi_bp.b_error; 1452 } 1453 *atareq = wi->wi_atareq; 1454 wi_free(wi); 1455 return(error1); 1456 } 1457 1458 case DIOCAWEDGE: 1459 { 1460 struct dkwedge_info *dkw = (void *) addr; 1461 1462 if ((flag & FWRITE) == 0) 1463 return (EBADF); 1464 1465 /* If the ioctl happens here, the parent is us. */ 1466 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1467 return (dkwedge_add(dkw)); 1468 } 1469 1470 case DIOCDWEDGE: 1471 { 1472 struct dkwedge_info *dkw = (void *) addr; 1473 1474 if ((flag & FWRITE) == 0) 1475 return (EBADF); 1476 1477 /* If the ioctl happens here, the parent is us. */ 1478 strcpy(dkw->dkw_parent, device_xname(wd->sc_dev)); 1479 return (dkwedge_del(dkw)); 1480 } 1481 1482 case DIOCLWEDGES: 1483 { 1484 struct dkwedge_list *dkwl = (void *) addr; 1485 1486 return (dkwedge_list(&wd->sc_dk, dkwl, l)); 1487 } 1488 1489 case DIOCGSTRATEGY: 1490 { 1491 struct disk_strategy *dks = (void *)addr; 1492 1493 s = splbio(); 1494 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1495 sizeof(dks->dks_name)); 1496 splx(s); 1497 dks->dks_paramlen = 0; 1498 1499 return 0; 1500 } 1501 1502 case DIOCSSTRATEGY: 1503 { 1504 struct disk_strategy *dks = (void *)addr; 1505 struct bufq_state *new; 1506 struct bufq_state *old; 1507 1508 if ((flag & FWRITE) == 0) { 1509 return EBADF; 1510 } 1511 if (dks->dks_param != NULL) { 1512 return EINVAL; 1513 } 1514 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1515 error = bufq_alloc(&new, dks->dks_name, 1516 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1517 if (error) { 1518 return error; 1519 } 1520 s = splbio(); 1521 old = wd->sc_q; 1522 bufq_move(new, old); 1523 wd->sc_q = new; 1524 splx(s); 1525 bufq_free(old); 1526 1527 return 0; 1528 } 1529 1530 case DIOCGDISCARDPARAMS: { 1531 struct disk_discard_params * tp; 1532 1533 if (!(wd->sc_params.atap_ata_major & WDC_VER_ATA8) 1534 || !(wd->sc_params.support_dsm & ATA_SUPPORT_DSM_TRIM)) 1535 return ENOTTY; 1536 tp = (struct disk_discard_params *)addr; 1537 tp->maxsize = 0xffff; /*wd->sc_params.max_dsm_blocks*/ 1538 printf("wd: maxtrimsize %ld\n", tp->maxsize); 1539 return 0; 1540 } 1541 case DIOCDISCARD: 1542 return wd_trim(wd, WDPART(dev), (struct disk_discard_range *)addr); 1543 1544 default: 1545 return ENOTTY; 1546 } 1547 1548 #ifdef DIAGNOSTIC 1549 panic("wdioctl: impossible"); 1550 #endif 1551 } 1552 1553 #ifdef B_FORMAT 1554 int 1555 wdformat(struct buf *bp) 1556 { 1557 1558 bp->b_flags |= B_FORMAT; 1559 return wdstrategy(bp); 1560 } 1561 #endif 1562 1563 int 1564 wdsize(dev_t dev) 1565 { 1566 struct wd_softc *wd; 1567 int part, omask; 1568 int size; 1569 1570 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1571 1572 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1573 if (wd == NULL) 1574 return (-1); 1575 1576 part = WDPART(dev); 1577 omask = wd->sc_dk.dk_openmask & (1 << part); 1578 1579 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1580 return (-1); 1581 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1582 size = -1; 1583 else 1584 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1585 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1586 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1587 return (-1); 1588 return (size); 1589 } 1590 1591 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1592 static int wddoingadump = 0; 1593 static int wddumprecalibrated = 0; 1594 1595 /* 1596 * Dump core after a system crash. 1597 */ 1598 int 1599 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1600 { 1601 struct wd_softc *wd; /* disk unit to do the I/O */ 1602 struct disklabel *lp; /* disk's disklabel */ 1603 int part, err; 1604 int nblks; /* total number of sectors left to write */ 1605 1606 /* Check if recursive dump; if so, punt. */ 1607 if (wddoingadump) 1608 return EFAULT; 1609 wddoingadump = 1; 1610 1611 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1612 if (wd == NULL) 1613 return (ENXIO); 1614 1615 part = WDPART(dev); 1616 1617 /* Convert to disk sectors. Request must be a multiple of size. */ 1618 lp = wd->sc_dk.dk_label; 1619 if ((size % lp->d_secsize) != 0) 1620 return EFAULT; 1621 nblks = size / lp->d_secsize; 1622 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1623 1624 /* Check transfer bounds against partition size. */ 1625 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1626 return EINVAL; 1627 1628 /* Offset block number to start of partition. */ 1629 blkno += lp->d_partitions[part].p_offset; 1630 1631 /* Recalibrate, if first dump transfer. */ 1632 if (wddumprecalibrated == 0) { 1633 wddumprecalibrated = 1; 1634 (*wd->atabus->ata_reset_drive)(wd->drvp, 1635 AT_POLL | AT_RST_EMERG, NULL); 1636 wd->drvp->state = RESET; 1637 } 1638 1639 wd->sc_bp = NULL; 1640 wd->sc_wdc_bio.blkno = blkno; 1641 wd->sc_wdc_bio.flags = ATA_POLL; 1642 if (wd->sc_flags & WDF_LBA48 && 1643 (wd->sc_wdc_bio.blkno + nblks) > wd->sc_capacity28) 1644 wd->sc_wdc_bio.flags |= ATA_LBA48; 1645 if (wd->sc_flags & WDF_LBA) 1646 wd->sc_wdc_bio.flags |= ATA_LBA; 1647 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1648 wd->sc_wdc_bio.databuf = va; 1649 #ifndef WD_DUMP_NOT_TRUSTED 1650 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1651 case ATACMD_TRY_AGAIN: 1652 panic("wddump: try again"); 1653 break; 1654 case ATACMD_QUEUED: 1655 panic("wddump: polled command has been queued"); 1656 break; 1657 case ATACMD_COMPLETE: 1658 break; 1659 default: 1660 panic("wddump: unknown atacmd code %d", err); 1661 } 1662 switch(err = wd->sc_wdc_bio.error) { 1663 case TIMEOUT: 1664 printf("wddump: device timed out"); 1665 err = EIO; 1666 break; 1667 case ERR_DF: 1668 printf("wddump: drive fault"); 1669 err = EIO; 1670 break; 1671 case ERR_DMA: 1672 printf("wddump: DMA error"); 1673 err = EIO; 1674 break; 1675 case ERROR: 1676 printf("wddump: "); 1677 wdperror(wd); 1678 err = EIO; 1679 break; 1680 case NOERROR: 1681 err = 0; 1682 break; 1683 default: 1684 panic("wddump: unknown error type %d", err); 1685 } 1686 if (err != 0) { 1687 printf("\n"); 1688 return err; 1689 } 1690 #else /* WD_DUMP_NOT_TRUSTED */ 1691 /* Let's just talk about this first... */ 1692 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1693 unit, va, cylin, head, sector); 1694 delay(500 * 1000); /* half a second */ 1695 #endif 1696 1697 wddoingadump = 0; 1698 return 0; 1699 } 1700 1701 #ifdef HAS_BAD144_HANDLING 1702 /* 1703 * Internalize the bad sector table. 1704 */ 1705 void 1706 bad144intern(struct wd_softc *wd) 1707 { 1708 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1709 struct disklabel *lp = wd->sc_dk.dk_label; 1710 int i = 0; 1711 1712 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1713 1714 for (; i < NBT_BAD; i++) { 1715 if (bt->bt_bad[i].bt_cyl == 0xffff) 1716 break; 1717 wd->sc_badsect[i] = 1718 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1719 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1720 (bt->bt_bad[i].bt_trksec & 0xff); 1721 } 1722 for (; i < NBT_BAD+1; i++) 1723 wd->sc_badsect[i] = -1; 1724 } 1725 #endif 1726 1727 static void 1728 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1729 { 1730 struct disk_geom *dg = &wd->sc_dk.dk_geom; 1731 1732 memset(dg, 0, sizeof(*dg)); 1733 1734 dg->dg_secperunit = wd->sc_capacity; 1735 dg->dg_secsize = DEV_BSIZE /* XXX 512? */; 1736 dg->dg_nsectors = wd->sc_params.atap_sectors; 1737 dg->dg_ntracks = wd->sc_params.atap_heads; 1738 if ((wd->sc_flags & WDF_LBA) == 0) 1739 dg->dg_ncylinders = wd->sc_params.atap_cylinders; 1740 1741 /* XXX Should have a case for ATA here, too. */ 1742 const char *cp = strcmp(wd->sc_params.atap_model, "ST506") ? 1743 "ST506" : "ESDI"; 1744 1745 disk_set_info(wd->sc_dev, &wd->sc_dk, cp); 1746 } 1747 1748 int 1749 wd_get_params(struct wd_softc *wd, u_int8_t flags, struct ataparams *params) 1750 { 1751 1752 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1753 case CMD_AGAIN: 1754 return 1; 1755 case CMD_ERR: 1756 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1757 return 1; 1758 /* 1759 * We `know' there's a drive here; just assume it's old. 1760 * This geometry is only used to read the MBR and print a 1761 * (false) attach message. 1762 */ 1763 strncpy(params->atap_model, "ST506", 1764 sizeof params->atap_model); 1765 params->atap_config = ATA_CFG_FIXED; 1766 params->atap_cylinders = 1024; 1767 params->atap_heads = 8; 1768 params->atap_sectors = 17; 1769 params->atap_multi = 1; 1770 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1771 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1772 /* FALLTHROUGH */ 1773 case CMD_OK: 1774 wd_params_to_properties(wd, params); 1775 return 0; 1776 default: 1777 panic("wd_get_params: bad return code from ata_get_params"); 1778 /* NOTREACHED */ 1779 } 1780 } 1781 1782 int 1783 wd_getcache(struct wd_softc *wd, int *bitsp) 1784 { 1785 struct ataparams params; 1786 1787 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1788 return EIO; 1789 if (params.atap_cmd_set1 == 0x0000 || 1790 params.atap_cmd_set1 == 0xffff || 1791 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1792 *bitsp = 0; 1793 return 0; 1794 } 1795 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1796 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1797 *bitsp |= DKCACHE_WRITE; 1798 1799 return 0; 1800 } 1801 1802 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1803 1804 int 1805 wd_setcache(struct wd_softc *wd, int bits) 1806 { 1807 struct ataparams params; 1808 struct ata_command ata_c; 1809 1810 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1811 return EIO; 1812 1813 if (params.atap_cmd_set1 == 0x0000 || 1814 params.atap_cmd_set1 == 0xffff || 1815 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1816 return EOPNOTSUPP; 1817 1818 if ((bits & DKCACHE_READ) == 0 || 1819 (bits & DKCACHE_SAVE) != 0) 1820 return EOPNOTSUPP; 1821 1822 memset(&ata_c, 0, sizeof(struct ata_command)); 1823 ata_c.r_command = SET_FEATURES; 1824 ata_c.r_st_bmask = 0; 1825 ata_c.r_st_pmask = 0; 1826 ata_c.timeout = 30000; /* 30s timeout */ 1827 ata_c.flags = AT_WAIT; 1828 if (bits & DKCACHE_WRITE) 1829 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1830 else 1831 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1832 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1833 aprint_error_dev(wd->sc_dev, 1834 "wd_setcache command not complete\n"); 1835 return EIO; 1836 } 1837 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1838 char sbuf[sizeof(at_errbits) + 64]; 1839 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1840 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1841 return EIO; 1842 } 1843 return 0; 1844 } 1845 1846 static int 1847 wd_standby(struct wd_softc *wd, int flags) 1848 { 1849 struct ata_command ata_c; 1850 1851 memset(&ata_c, 0, sizeof(struct ata_command)); 1852 ata_c.r_command = WDCC_STANDBY_IMMED; 1853 ata_c.r_st_bmask = WDCS_DRDY; 1854 ata_c.r_st_pmask = WDCS_DRDY; 1855 ata_c.flags = flags; 1856 ata_c.timeout = 30000; /* 30s timeout */ 1857 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1858 aprint_error_dev(wd->sc_dev, 1859 "standby immediate command didn't complete\n"); 1860 return EIO; 1861 } 1862 if (ata_c.flags & AT_ERROR) { 1863 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1864 return ENODEV; 1865 } 1866 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1867 char sbuf[sizeof(at_errbits) + 64]; 1868 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1869 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1870 return EIO; 1871 } 1872 return 0; 1873 } 1874 1875 int 1876 wd_flushcache(struct wd_softc *wd, int flags) 1877 { 1878 struct ata_command ata_c; 1879 1880 /* 1881 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1882 * only ATA-2 and still support it. 1883 */ 1884 if (wd->drvp->ata_vers < 4 && 1885 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1886 wd->sc_params.atap_cmd_set2 == 0xffff)) 1887 return ENODEV; 1888 memset(&ata_c, 0, sizeof(struct ata_command)); 1889 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1890 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1891 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1892 flags |= AT_LBA48; 1893 } else 1894 ata_c.r_command = WDCC_FLUSHCACHE; 1895 ata_c.r_st_bmask = WDCS_DRDY; 1896 ata_c.r_st_pmask = WDCS_DRDY; 1897 ata_c.flags = flags | AT_READREG; 1898 ata_c.timeout = 300000; /* 5m timeout */ 1899 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1900 aprint_error_dev(wd->sc_dev, 1901 "flush cache command didn't complete\n"); 1902 return EIO; 1903 } 1904 if (ata_c.flags & AT_ERROR) { 1905 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1906 return ENODEV; 1907 } 1908 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1909 char sbuf[sizeof(at_errbits) + 64]; 1910 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1911 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1912 sbuf); 1913 return EIO; 1914 } 1915 return 0; 1916 } 1917 1918 int 1919 wd_trim(struct wd_softc *wd, int part, struct disk_discard_range *tr) 1920 { 1921 struct ata_command ata_c; 1922 unsigned char *req; 1923 daddr_t bno = tr->bno; 1924 1925 if (part != RAW_PART) 1926 bno += wd->sc_dk.dk_label->d_partitions[part].p_offset;; 1927 1928 req = kmem_zalloc(512, KM_SLEEP); 1929 req[0] = bno & 0xff; 1930 req[1] = (bno >> 8) & 0xff; 1931 req[2] = (bno >> 16) & 0xff; 1932 req[3] = (bno >> 24) & 0xff; 1933 req[4] = (bno >> 32) & 0xff; 1934 req[5] = (bno >> 40) & 0xff; 1935 req[6] = tr->size & 0xff; 1936 req[7] = (tr->size >> 8) & 0xff; 1937 1938 memset(&ata_c, 0, sizeof(struct ata_command)); 1939 ata_c.r_command = ATA_DATA_SET_MANAGEMENT; 1940 ata_c.r_count = 1; 1941 ata_c.r_features = ATA_SUPPORT_DSM_TRIM; 1942 ata_c.r_st_bmask = WDCS_DRDY; 1943 ata_c.r_st_pmask = WDCS_DRDY; 1944 ata_c.timeout = 30000; /* 30s timeout */ 1945 ata_c.data = req; 1946 ata_c.bcount = 512; 1947 ata_c.flags |= AT_WRITE | AT_WAIT; 1948 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1949 aprint_error_dev(wd->sc_dev, 1950 "trim command didn't complete\n"); 1951 kmem_free(req, 512); 1952 return EIO; 1953 } 1954 kmem_free(req, 512); 1955 if (ata_c.flags & AT_ERROR) { 1956 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1957 return ENODEV; 1958 } 1959 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1960 char sbuf[sizeof(at_errbits) + 64]; 1961 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1962 aprint_error_dev(wd->sc_dev, "wd_trim: status=%s\n", 1963 sbuf); 1964 return EIO; 1965 } 1966 return 0; 1967 } 1968 1969 bool 1970 wd_shutdown(device_t dev, int how) 1971 { 1972 struct wd_softc *wd = device_private(dev); 1973 1974 /* the adapter needs to be enabled */ 1975 if (wd->atabus->ata_addref(wd->drvp)) 1976 return true; /* no need to complain */ 1977 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 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2115 ata_c.flags |= AT_LBA; 2116 2117 ata_c.flags |= AT_WAIT; 2118 2119 ata_c.timeout = wi->wi_atareq.timeout; 2120 ata_c.r_command = wi->wi_atareq.command; 2121 ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2122 (wi->wi_atareq.cylinder << 8) | 2123 wi->wi_atareq.sec_num; 2124 ata_c.r_count = wi->wi_atareq.sec_count; 2125 ata_c.r_features = wi->wi_atareq.features; 2126 ata_c.r_st_bmask = WDCS_DRDY; 2127 ata_c.r_st_pmask = WDCS_DRDY; 2128 ata_c.data = wi->wi_bp.b_data; 2129 ata_c.bcount = wi->wi_bp.b_bcount; 2130 2131 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2132 != ATACMD_COMPLETE) { 2133 wi->wi_atareq.retsts = ATACMD_ERROR; 2134 goto bad; 2135 } 2136 2137 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2138 if (ata_c.flags & AT_ERROR) { 2139 wi->wi_atareq.retsts = ATACMD_ERROR; 2140 wi->wi_atareq.error = ata_c.r_error; 2141 } else if (ata_c.flags & AT_DF) 2142 wi->wi_atareq.retsts = ATACMD_DF; 2143 else 2144 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2145 } else { 2146 wi->wi_atareq.retsts = ATACMD_OK; 2147 if (wi->wi_atareq.flags & ATACMD_READREG) { 2148 wi->wi_atareq.command = ata_c.r_status; 2149 wi->wi_atareq.features = ata_c.r_error; 2150 wi->wi_atareq.sec_count = ata_c.r_count; 2151 wi->wi_atareq.sec_num = ata_c.r_lba & 0xff; 2152 wi->wi_atareq.head = (ata_c.r_device & 0xf0) | 2153 ((ata_c.r_lba >> 24) & 0x0f); 2154 wi->wi_atareq.cylinder = (ata_c.r_lba >> 8) & 0xffff; 2155 wi->wi_atareq.error = ata_c.r_error; 2156 } 2157 } 2158 2159 bp->b_error = 0; 2160 biodone(bp); 2161 return; 2162 bad: 2163 bp->b_error = error; 2164 bp->b_resid = bp->b_bcount; 2165 biodone(bp); 2166 } 2167
Indexes created Fri Sep 26 08:10:20 GMT 2025