wd.c revision 1.415.2.3
1 /* $NetBSD: wd.c,v 1.415.2.3 2016/07/09 20:25:01 skrll 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 1.415.2.3 2016/07/09 20:25:01 skrll 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/rndsource.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 static dev_type_discard(wddiscard); 144 145 const struct bdevsw wd_bdevsw = { 146 .d_open = wdopen, 147 .d_close = wdclose, 148 .d_strategy = wdstrategy, 149 .d_ioctl = wdioctl, 150 .d_dump = wddump, 151 .d_psize = wdsize, 152 .d_discard = wddiscard, 153 .d_flag = D_DISK 154 }; 155 156 const struct cdevsw wd_cdevsw = { 157 .d_open = wdopen, 158 .d_close = wdclose, 159 .d_read = wdread, 160 .d_write = wdwrite, 161 .d_ioctl = wdioctl, 162 .d_stop = nostop, 163 .d_tty = notty, 164 .d_poll = nopoll, 165 .d_mmap = nommap, 166 .d_kqfilter = nokqfilter, 167 .d_discard = wddiscard, 168 .d_flag = D_DISK 169 }; 170 171 /* 172 * Glue necessary to hook WDCIOCCOMMAND into physio 173 */ 174 175 struct wd_ioctl { 176 LIST_ENTRY(wd_ioctl) wi_list; 177 struct buf wi_bp; 178 struct uio wi_uio; 179 struct iovec wi_iov; 180 atareq_t wi_atareq; 181 struct wd_softc *wi_softc; 182 }; 183 184 LIST_HEAD(, wd_ioctl) wi_head; 185 186 struct wd_ioctl *wi_find(struct buf *); 187 void wi_free(struct wd_ioctl *); 188 struct wd_ioctl *wi_get(void); 189 void wdioctlstrategy(struct buf *); 190 191 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 192 void wdgetdisklabel(struct wd_softc *); 193 void wdstart(void *); 194 void wdstart1(struct wd_softc*, struct buf *); 195 void wdrestart(void *); 196 void wddone(void *); 197 int wd_get_params(struct wd_softc *, uint8_t, struct ataparams *); 198 int wd_flushcache(struct wd_softc *, int); 199 int wd_trim(struct wd_softc *, int, daddr_t, long); 200 bool wd_shutdown(device_t, int); 201 202 int wd_getcache(struct wd_softc *, int *); 203 int wd_setcache(struct wd_softc *, int); 204 205 struct dkdriver wddkdriver = { 206 .d_strategy = wdstrategy, 207 .d_minphys = wdminphys 208 }; 209 210 #ifdef HAS_BAD144_HANDLING 211 static void bad144intern(struct wd_softc *); 212 #endif 213 214 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 215 216 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 217 218 /* 219 * Quirk table for IDE drives. Put more-specific matches first, since 220 * a simple globing routine is used for matching. 221 */ 222 static const struct wd_quirk { 223 const char *wdq_match; /* inquiry pattern to match */ 224 int wdq_quirks; /* drive quirks */ 225 } wd_quirk_table[] = { 226 /* 227 * Some Seagate S-ATA drives have a PHY which can get confused 228 * with the way data is packetized by some S-ATA controllers. 229 * 230 * The work-around is to split in two any write transfer whose 231 * sector count % 15 == 1 (assuming 512 byte sectors). 232 * 233 * XXX This is an incomplete list. There are at least a couple 234 * XXX more model numbers. If you have trouble with such transfers 235 * XXX (8K is the most common) on Seagate S-ATA drives, please 236 * XXX notify thorpej (at) NetBSD.org. 237 * 238 * The ST360015AS has not yet been confirmed to have this 239 * issue, however, it is the only other drive in the 240 * Seagate Barracuda Serial ATA V family. 241 * 242 */ 243 { "ST3120023AS", 244 WD_QUIRK_SPLIT_MOD15_WRITE }, 245 { "ST380023AS", 246 WD_QUIRK_SPLIT_MOD15_WRITE }, 247 { "ST360015AS", 248 WD_QUIRK_SPLIT_MOD15_WRITE }, 249 { NULL, 250 0 } 251 }; 252 253 static const struct wd_quirk * 254 wd_lookup_quirks(const char *name) 255 { 256 const struct wd_quirk *wdq; 257 const char *estr; 258 259 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 260 /* 261 * We only want exact matches (which include matches 262 * against globbing characters). 263 */ 264 if (pmatch(name, wdq->wdq_match, &estr) == 2) 265 return (wdq); 266 } 267 return (NULL); 268 } 269 270 int 271 wdprobe(device_t parent, cfdata_t match, void *aux) 272 { 273 struct ata_device *adev = aux; 274 275 if (adev == NULL) 276 return 0; 277 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 278 return 0; 279 280 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 281 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 282 return 0; 283 return 1; 284 } 285 286 void 287 wdattach(device_t parent, device_t self, void *aux) 288 { 289 struct wd_softc *wd = device_private(self); 290 struct ata_device *adev= aux; 291 int i, blank; 292 char tbuf[41], pbuf[9], c, *p, *q; 293 const struct wd_quirk *wdq; 294 295 wd->sc_dev = self; 296 297 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 298 callout_init(&wd->sc_restart_ch, 0); 299 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 300 #ifdef WD_SOFTBADSECT 301 SLIST_INIT(&wd->sc_bslist); 302 #endif 303 wd->atabus = adev->adev_bustype; 304 wd->openings = adev->adev_openings; 305 wd->drvp = adev->adev_drv_data; 306 307 wd->drvp->drv_done = wddone; 308 wd->drvp->drv_softc = wd->sc_dev; /* done in atabusconfig_thread() 309 but too late */ 310 311 aprint_naive("\n"); 312 aprint_normal("\n"); 313 314 /* read our drive info */ 315 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 316 aprint_error_dev(self, "IDENTIFY failed\n"); 317 goto out; 318 } 319 320 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 321 i < sizeof(wd->sc_params.atap_model); i++) { 322 c = *p++; 323 if (c == '\0') 324 break; 325 if (c != ' ') { 326 if (blank) { 327 *q++ = ' '; 328 blank = 0; 329 } 330 *q++ = c; 331 } else 332 blank = 1; 333 } 334 *q++ = '\0'; 335 336 aprint_normal_dev(self, "<%s>\n", tbuf); 337 338 wdq = wd_lookup_quirks(tbuf); 339 if (wdq != NULL) 340 wd->sc_quirks = wdq->wdq_quirks; 341 342 if (wd->sc_quirks != 0) { 343 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 344 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 345 aprint_normal_dev(self, "quirks %s\n", sbuf); 346 } 347 348 if ((wd->sc_params.atap_multi & 0xff) > 1) { 349 wd->sc_multi = wd->sc_params.atap_multi & 0xff; 350 } else { 351 wd->sc_multi = 1; 352 } 353 354 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 355 wd->sc_multi); 356 357 /* 48-bit LBA addressing */ 358 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 359 wd->sc_flags |= WDF_LBA48; 360 361 /* Prior to ATA-4, LBA was optional. */ 362 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 363 wd->sc_flags |= WDF_LBA; 364 #if 0 365 /* ATA-4 requires LBA. */ 366 if (wd->sc_params.atap_ataversion != 0xffff && 367 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 368 wd->sc_flags |= WDF_LBA; 369 #endif 370 371 if ((wd->sc_flags & WDF_LBA48) != 0) { 372 aprint_verbose(" LBA48 addressing\n"); 373 wd->sc_capacity = 374 ((uint64_t) wd->sc_params.atap_max_lba[3] << 48) | 375 ((uint64_t) wd->sc_params.atap_max_lba[2] << 32) | 376 ((uint64_t) wd->sc_params.atap_max_lba[1] << 16) | 377 ((uint64_t) wd->sc_params.atap_max_lba[0] << 0); 378 wd->sc_capacity28 = 379 (wd->sc_params.atap_capacity[1] << 16) | 380 wd->sc_params.atap_capacity[0]; 381 } else if ((wd->sc_flags & WDF_LBA) != 0) { 382 aprint_verbose(" LBA addressing\n"); 383 wd->sc_capacity28 = wd->sc_capacity = 384 (wd->sc_params.atap_capacity[1] << 16) | 385 wd->sc_params.atap_capacity[0]; 386 } else { 387 aprint_verbose(" chs addressing\n"); 388 wd->sc_capacity28 = wd->sc_capacity = 389 wd->sc_params.atap_cylinders * 390 wd->sc_params.atap_heads * 391 wd->sc_params.atap_sectors; 392 } 393 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * DEV_BSIZE); 394 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 395 "%d bytes/sect x %llu sectors\n", 396 pbuf, 397 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 398 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 399 wd->sc_params.atap_cylinders, 400 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 401 DEV_BSIZE, (unsigned long long)wd->sc_capacity); 402 403 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 404 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 405 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 406 out: 407 /* 408 * Initialize and attach the disk structure. 409 */ 410 /* we fill in dk_info later */ 411 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 412 disk_attach(&wd->sc_dk); 413 wd->sc_wdc_bio.lp = wd->sc_dk.dk_label; 414 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 415 RND_TYPE_DISK, RND_FLAG_DEFAULT); 416 417 /* Discover wedges on this disk. */ 418 dkwedge_discover(&wd->sc_dk); 419 420 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 421 aprint_error_dev(self, "couldn't establish power handler\n"); 422 } 423 424 static bool 425 wd_suspend(device_t dv, const pmf_qual_t *qual) 426 { 427 struct wd_softc *sc = device_private(dv); 428 429 /* the adapter needs to be enabled */ 430 if (sc->atabus->ata_addref(sc->drvp)) 431 return true; /* no need to complain */ 432 433 wd_flushcache(sc, AT_WAIT); 434 wd_standby(sc, AT_WAIT); 435 436 sc->atabus->ata_delref(sc->drvp); 437 return true; 438 } 439 440 int 441 wddetach(device_t self, int flags) 442 { 443 struct wd_softc *sc = device_private(self); 444 int bmaj, cmaj, i, mn, rc, s; 445 446 if ((rc = disk_begindetach(&sc->sc_dk, wdlastclose, self, flags)) != 0) 447 return rc; 448 449 /* locate the major number */ 450 bmaj = bdevsw_lookup_major(&wd_bdevsw); 451 cmaj = cdevsw_lookup_major(&wd_cdevsw); 452 453 /* Nuke the vnodes for any open instances. */ 454 for (i = 0; i < MAXPARTITIONS; i++) { 455 mn = WDMINOR(device_unit(self), i); 456 vdevgone(bmaj, mn, mn, VBLK); 457 vdevgone(cmaj, mn, mn, VCHR); 458 } 459 460 /* Delete all of our wedges. */ 461 dkwedge_delall(&sc->sc_dk); 462 463 s = splbio(); 464 465 /* Kill off any queued buffers. */ 466 bufq_drain(sc->sc_q); 467 468 bufq_free(sc->sc_q); 469 sc->atabus->ata_killpending(sc->drvp); 470 if (flags & DETACH_POWEROFF) 471 wd_standby(sc, AT_POLL); 472 473 splx(s); 474 475 /* Detach disk. */ 476 disk_detach(&sc->sc_dk); 477 disk_destroy(&sc->sc_dk); 478 479 #ifdef WD_SOFTBADSECT 480 /* Clean out the bad sector list */ 481 while (!SLIST_EMPTY(&sc->sc_bslist)) { 482 void *head = SLIST_FIRST(&sc->sc_bslist); 483 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 484 free(head, M_TEMP); 485 } 486 sc->sc_bscount = 0; 487 #endif 488 489 pmf_device_deregister(self); 490 491 /* Unhook the entropy source. */ 492 rnd_detach_source(&sc->rnd_source); 493 494 callout_destroy(&sc->sc_restart_ch); 495 496 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 497 sc->drvp->drive_flags = 0; 498 499 return (0); 500 } 501 502 /* 503 * Read/write routine for a buffer. Validates the arguments and schedules the 504 * transfer. Does not wait for the transfer to complete. 505 */ 506 void 507 wdstrategy(struct buf *bp) 508 { 509 struct wd_softc *wd = 510 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 511 struct disklabel *lp = wd->sc_dk.dk_label; 512 daddr_t blkno; 513 int s; 514 515 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 516 DEBUG_XFERS); 517 518 /* Valid request? */ 519 if (bp->b_blkno < 0 || 520 (bp->b_bcount % lp->d_secsize) != 0 || 521 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 522 bp->b_error = EINVAL; 523 goto done; 524 } 525 526 /* If device invalidated (e.g. media change, door open, 527 * device detachment), then error. 528 */ 529 if ((wd->sc_flags & WDF_LOADED) == 0 || 530 !device_is_enabled(wd->sc_dev)) { 531 bp->b_error = EIO; 532 goto done; 533 } 534 535 /* If it's a null transfer, return immediately. */ 536 if (bp->b_bcount == 0) 537 goto done; 538 539 /* 540 * Do bounds checking, adjust transfer. if error, process. 541 * If end of partition, just return. 542 */ 543 if (WDPART(bp->b_dev) == RAW_PART) { 544 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 545 wd->sc_capacity) <= 0) 546 goto done; 547 } else { 548 if (bounds_check_with_label(&wd->sc_dk, bp, 549 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 550 goto done; 551 } 552 553 /* 554 * Now convert the block number to absolute and put it in 555 * terms of the device's logical block size. 556 */ 557 if (lp->d_secsize >= DEV_BSIZE) 558 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 559 else 560 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 561 562 if (WDPART(bp->b_dev) != RAW_PART) 563 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 564 565 bp->b_rawblkno = blkno; 566 567 #ifdef WD_SOFTBADSECT 568 /* 569 * If the transfer about to be attempted contains only a block that 570 * is known to be bad then return an error for the transfer without 571 * even attempting to start a transfer up under the premis that we 572 * will just end up doing more retries for a transfer that will end 573 * up failing again. 574 * XXX:SMP - mutex required to protect with DIOCBSFLUSH 575 */ 576 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 577 struct disk_badsectors *dbs; 578 daddr_t maxblk = blkno + (bp->b_bcount >> DEV_BSHIFT) - 1; 579 580 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 581 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 582 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 583 bp->b_error = EIO; 584 goto done; 585 } 586 } 587 #endif 588 589 /* Queue transfer on drive, activate drive and controller if idle. */ 590 s = splbio(); 591 bufq_put(wd->sc_q, bp); 592 wdstart(wd); 593 splx(s); 594 return; 595 done: 596 /* Toss transfer; we're done early. */ 597 bp->b_resid = bp->b_bcount; 598 biodone(bp); 599 } 600 601 /* 602 * Queue a drive for I/O. 603 */ 604 void 605 wdstart(void *arg) 606 { 607 struct wd_softc *wd = arg; 608 struct buf *bp = NULL; 609 610 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 611 DEBUG_XFERS); 612 613 if (!device_is_active(wd->sc_dev)) 614 return; 615 616 while (wd->openings > 0) { 617 618 /* Is there a buf for us ? */ 619 if ((bp = bufq_get(wd->sc_q)) == NULL) 620 return; 621 622 /* 623 * Make the command. First lock the device 624 */ 625 wd->openings--; 626 627 wd->retries = 0; 628 wdstart1(wd, bp); 629 } 630 } 631 632 static void 633 wd_split_mod15_write(struct buf *bp) 634 { 635 struct buf *obp = bp->b_private; 636 struct wd_softc *sc = 637 device_lookup_private(&wd_cd, DISKUNIT(obp->b_dev)); 638 int s; 639 640 if (__predict_false(bp->b_error != 0)) { 641 /* 642 * Propagate the error. If this was the first half of 643 * the original transfer, make sure to account for that 644 * in the residual. 645 */ 646 if (bp->b_data == obp->b_data) 647 bp->b_resid += bp->b_bcount; 648 goto done; 649 } 650 651 /* 652 * If this was the second half of the transfer, we're all done! 653 */ 654 if (bp->b_data != obp->b_data) 655 goto done; 656 657 /* 658 * Advance the pointer to the second half and issue that command 659 * using the same opening. 660 */ 661 bp->b_flags = obp->b_flags; 662 bp->b_oflags = obp->b_oflags; 663 bp->b_cflags = obp->b_cflags; 664 bp->b_data = (char *)bp->b_data + bp->b_bcount; 665 bp->b_blkno += (bp->b_bcount / 512); 666 bp->b_rawblkno += (bp->b_bcount / 512); 667 s = splbio(); 668 wdstart1(sc, bp); 669 splx(s); 670 return; 671 672 done: 673 obp->b_error = bp->b_error; 674 obp->b_resid = bp->b_resid; 675 s = splbio(); 676 putiobuf(bp); 677 biodone(obp); 678 sc->openings++; 679 splx(s); 680 /* wddone() will call wdstart() */ 681 } 682 683 void 684 wdstart1(struct wd_softc *wd, struct buf *bp) 685 { 686 687 /* 688 * Deal with the "split mod15 write" quirk. We just divide the 689 * transfer in two, doing the first half and then then second half 690 * with the same command opening. 691 * 692 * Note we MUST do this here, because we can't let insertion 693 * into the bufq cause the transfers to be re-merged. 694 */ 695 if (__predict_false((wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) != 0 && 696 (bp->b_flags & B_READ) == 0 && 697 bp->b_bcount > 512 && 698 ((bp->b_bcount / 512) % 15) == 1)) { 699 struct buf *nbp; 700 701 /* already at splbio */ 702 nbp = getiobuf(NULL, false); 703 if (__predict_false(nbp == NULL)) { 704 /* No memory -- fail the iop. */ 705 bp->b_error = ENOMEM; 706 bp->b_resid = bp->b_bcount; 707 biodone(bp); 708 wd->openings++; 709 return; 710 } 711 712 nbp->b_error = 0; 713 nbp->b_proc = bp->b_proc; 714 nbp->b_dev = bp->b_dev; 715 716 nbp->b_bcount = bp->b_bcount / 2; 717 nbp->b_bufsize = bp->b_bcount / 2; 718 nbp->b_data = bp->b_data; 719 720 nbp->b_blkno = bp->b_blkno; 721 nbp->b_rawblkno = bp->b_rawblkno; 722 723 nbp->b_flags = bp->b_flags; 724 nbp->b_oflags = bp->b_oflags; 725 nbp->b_cflags = bp->b_cflags; 726 nbp->b_iodone = wd_split_mod15_write; 727 728 /* Put ptr to orig buf in b_private and use new buf */ 729 nbp->b_private = bp; 730 731 BIO_COPYPRIO(nbp, bp); 732 733 bp = nbp; 734 } 735 736 wd->sc_wdc_bio.blkno = bp->b_rawblkno; 737 wd->sc_wdc_bio.bcount = bp->b_bcount; 738 wd->sc_wdc_bio.databuf = bp->b_data; 739 wd->sc_wdc_bio.blkdone =0; 740 KASSERT(bp == wd->sc_bp || wd->sc_bp == NULL); 741 wd->sc_bp = bp; 742 /* 743 * If we're retrying, retry in single-sector mode. This will give us 744 * the sector number of the problem, and will eventually allow the 745 * transfer to succeed. 746 */ 747 if (wd->retries >= WDIORETRIES_SINGLE) 748 wd->sc_wdc_bio.flags = ATA_SINGLE; 749 else 750 wd->sc_wdc_bio.flags = 0; 751 if (wd->sc_flags & WDF_LBA48 && 752 (wd->sc_wdc_bio.blkno + 753 wd->sc_wdc_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 754 wd->sc_capacity28) 755 wd->sc_wdc_bio.flags |= ATA_LBA48; 756 if (wd->sc_flags & WDF_LBA) 757 wd->sc_wdc_bio.flags |= ATA_LBA; 758 if (bp->b_flags & B_READ) 759 wd->sc_wdc_bio.flags |= ATA_READ; 760 /* Instrumentation. */ 761 disk_busy(&wd->sc_dk); 762 switch (wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 763 case ATACMD_TRY_AGAIN: 764 callout_reset(&wd->sc_restart_ch, hz, wdrestart, wd); 765 break; 766 case ATACMD_QUEUED: 767 case ATACMD_COMPLETE: 768 break; 769 default: 770 panic("wdstart1: bad return code from ata_bio()"); 771 } 772 } 773 774 void 775 wddone(void *v) 776 { 777 struct wd_softc *wd = device_private(v); 778 struct buf *bp = wd->sc_bp; 779 const char *errmsg; 780 int do_perror = 0; 781 782 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 783 DEBUG_XFERS); 784 if (bp == NULL) 785 return; 786 bp->b_resid = wd->sc_wdc_bio.bcount; 787 switch (wd->sc_wdc_bio.error) { 788 case ERR_DMA: 789 errmsg = "DMA error"; 790 goto retry; 791 case ERR_DF: 792 errmsg = "device fault"; 793 goto retry; 794 case TIMEOUT: 795 errmsg = "device timeout"; 796 goto retry; 797 case ERR_RESET: 798 errmsg = "channel reset"; 799 goto retry2; 800 case ERROR: 801 /* Don't care about media change bits */ 802 if (wd->sc_wdc_bio.r_error != 0 && 803 (wd->sc_wdc_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 804 goto noerror; 805 errmsg = "error"; 806 do_perror = 1; 807 retry: /* Just reset and retry. Can we do more ? */ 808 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_RST_NOCMD, NULL); 809 retry2: 810 diskerr(bp, "wd", errmsg, LOG_PRINTF, 811 wd->sc_wdc_bio.blkdone, wd->sc_dk.dk_label); 812 if (wd->retries < WDIORETRIES) 813 printf(", retrying"); 814 printf("\n"); 815 if (do_perror) 816 wdperror(wd); 817 if (wd->retries < WDIORETRIES) { 818 wd->retries++; 819 callout_reset(&wd->sc_restart_ch, RECOVERYTIME, 820 wdrestart, wd); 821 return; 822 } 823 824 #ifdef WD_SOFTBADSECT 825 /* 826 * Not all errors indicate a failed block but those that do, 827 * put the block on the bad-block list for the device. Only 828 * do this for reads because the drive should do it for writes, 829 * itself, according to Manuel. 830 */ 831 if ((bp->b_flags & B_READ) && 832 ((wd->drvp->ata_vers >= 4 && wd->sc_wdc_bio.r_error & 64) || 833 (wd->drvp->ata_vers < 4 && wd->sc_wdc_bio.r_error & 192))) { 834 struct disk_badsectors *dbs; 835 836 dbs = malloc(sizeof *dbs, M_TEMP, M_WAITOK); 837 dbs->dbs_min = bp->b_rawblkno; 838 dbs->dbs_max = dbs->dbs_min + (bp->b_bcount >> DEV_BSHIFT) - 1; 839 microtime(&dbs->dbs_failedat); 840 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 841 wd->sc_bscount++; 842 } 843 #endif 844 bp->b_error = EIO; 845 break; 846 case NOERROR: 847 noerror: if ((wd->sc_wdc_bio.flags & ATA_CORR) || wd->retries > 0) 848 aprint_error_dev(wd->sc_dev, 849 "soft error (corrected)\n"); 850 break; 851 case ERR_NODEV: 852 bp->b_error = EIO; 853 break; 854 } 855 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 856 /* 857 * the disk or controller sometimes report a complete 858 * xfer, when there has been an error. This is wrong, 859 * assume nothing got transfered in this case 860 */ 861 bp->b_resid = bp->b_bcount; 862 } 863 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 864 (bp->b_flags & B_READ)); 865 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 866 /* XXX Yuck, but we don't want to increment openings in this case */ 867 if (__predict_false(bp->b_iodone == wd_split_mod15_write)) 868 biodone(bp); 869 else { 870 biodone(bp); 871 wd->openings++; 872 } 873 KASSERT(wd->sc_bp != NULL); 874 wd->sc_bp = NULL; 875 wdstart(wd); 876 } 877 878 void 879 wdrestart(void *v) 880 { 881 struct wd_softc *wd = v; 882 struct buf *bp = wd->sc_bp; 883 int s; 884 885 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 886 DEBUG_XFERS); 887 s = splbio(); 888 wdstart1(v, bp); 889 splx(s); 890 } 891 892 static void 893 wdminphys(struct buf *bp) 894 { 895 896 if (bp->b_bcount > (512 * 128)) { 897 bp->b_bcount = (512 * 128); 898 } 899 minphys(bp); 900 } 901 902 int 903 wdread(dev_t dev, struct uio *uio, int flags) 904 { 905 906 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 907 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 908 } 909 910 int 911 wdwrite(dev_t dev, struct uio *uio, int flags) 912 { 913 914 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 915 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 916 } 917 918 int 919 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 920 { 921 struct wd_softc *wd; 922 int part, error; 923 924 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 925 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 926 if (wd == NULL) 927 return (ENXIO); 928 929 if (! device_is_active(wd->sc_dev)) 930 return (ENODEV); 931 932 if (wd->sc_capacity == 0) 933 return (ENODEV); 934 935 part = WDPART(dev); 936 937 mutex_enter(&wd->sc_dk.dk_openlock); 938 939 /* 940 * If there are wedges, and this is not RAW_PART, then we 941 * need to fail. 942 */ 943 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 944 error = EBUSY; 945 goto bad1; 946 } 947 948 /* 949 * If this is the first open of this device, add a reference 950 * to the adapter. 951 */ 952 if (wd->sc_dk.dk_openmask == 0 && 953 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 954 goto bad1; 955 956 if (wd->sc_dk.dk_openmask != 0) { 957 /* 958 * If any partition is open, but the disk has been invalidated, 959 * disallow further opens. 960 */ 961 if ((wd->sc_flags & WDF_LOADED) == 0) { 962 error = EIO; 963 goto bad2; 964 } 965 } else { 966 if ((wd->sc_flags & WDF_LOADED) == 0) { 967 968 /* Load the physical device parameters. */ 969 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 970 aprint_error_dev(wd->sc_dev, 971 "IDENTIFY failed\n"); 972 error = EIO; 973 goto bad2; 974 } 975 wd->sc_flags |= WDF_LOADED; 976 /* Load the partition info if not already loaded. */ 977 wdgetdisklabel(wd); 978 } 979 } 980 981 /* Check that the partition exists. */ 982 if (part != RAW_PART && 983 (part >= wd->sc_dk.dk_label->d_npartitions || 984 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 985 error = ENXIO; 986 goto bad2; 987 } 988 989 /* Insure only one open at a time. */ 990 switch (fmt) { 991 case S_IFCHR: 992 wd->sc_dk.dk_copenmask |= (1 << part); 993 break; 994 case S_IFBLK: 995 wd->sc_dk.dk_bopenmask |= (1 << part); 996 break; 997 } 998 wd->sc_dk.dk_openmask = 999 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1000 1001 mutex_exit(&wd->sc_dk.dk_openlock); 1002 return 0; 1003 1004 bad2: 1005 if (wd->sc_dk.dk_openmask == 0) 1006 wd->atabus->ata_delref(wd->drvp); 1007 bad1: 1008 mutex_exit(&wd->sc_dk.dk_openlock); 1009 return error; 1010 } 1011 1012 /* 1013 * Caller must hold wd->sc_dk.dk_openlock. 1014 */ 1015 static int 1016 wdlastclose(device_t self) 1017 { 1018 struct wd_softc *wd = device_private(self); 1019 1020 wd_flushcache(wd, AT_WAIT); 1021 1022 if (! (wd->sc_flags & WDF_KLABEL)) 1023 wd->sc_flags &= ~WDF_LOADED; 1024 1025 wd->atabus->ata_delref(wd->drvp); 1026 1027 return 0; 1028 } 1029 1030 int 1031 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1032 { 1033 struct wd_softc *wd = 1034 device_lookup_private(&wd_cd, WDUNIT(dev)); 1035 int part = WDPART(dev); 1036 1037 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1038 1039 mutex_enter(&wd->sc_dk.dk_openlock); 1040 1041 switch (fmt) { 1042 case S_IFCHR: 1043 wd->sc_dk.dk_copenmask &= ~(1 << part); 1044 break; 1045 case S_IFBLK: 1046 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1047 break; 1048 } 1049 wd->sc_dk.dk_openmask = 1050 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1051 1052 if (wd->sc_dk.dk_openmask == 0) 1053 wdlastclose(wd->sc_dev); 1054 1055 mutex_exit(&wd->sc_dk.dk_openlock); 1056 return 0; 1057 } 1058 1059 void 1060 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1061 { 1062 1063 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1064 memset(lp, 0, sizeof(struct disklabel)); 1065 1066 lp->d_secsize = DEV_BSIZE; 1067 lp->d_ntracks = wd->sc_params.atap_heads; 1068 lp->d_nsectors = wd->sc_params.atap_sectors; 1069 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1070 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1071 wd->sc_params.atap_cylinders; 1072 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1073 1074 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1075 lp->d_type = DKTYPE_ST506; 1076 else 1077 lp->d_type = DKTYPE_ESDI; 1078 1079 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1080 strncpy(lp->d_packname, "fictitious", 16); 1081 if (wd->sc_capacity > UINT32_MAX) 1082 lp->d_secperunit = UINT32_MAX; 1083 else 1084 lp->d_secperunit = wd->sc_capacity; 1085 lp->d_rpm = 3600; 1086 lp->d_interleave = 1; 1087 lp->d_flags = 0; 1088 1089 lp->d_partitions[RAW_PART].p_offset = 0; 1090 lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; 1091 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1092 lp->d_npartitions = RAW_PART + 1; 1093 1094 lp->d_magic = DISKMAGIC; 1095 lp->d_magic2 = DISKMAGIC; 1096 lp->d_checksum = dkcksum(lp); 1097 } 1098 1099 /* 1100 * Fabricate a default disk label, and try to read the correct one. 1101 */ 1102 void 1103 wdgetdisklabel(struct wd_softc *wd) 1104 { 1105 struct disklabel *lp = wd->sc_dk.dk_label; 1106 const char *errstring; 1107 int s; 1108 1109 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1110 1111 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1112 1113 wdgetdefaultlabel(wd, lp); 1114 1115 wd->sc_badsect[0] = -1; 1116 1117 if (wd->drvp->state > RESET) { 1118 s = splbio(); 1119 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1120 splx(s); 1121 } 1122 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1123 RAW_PART), wdstrategy, lp, 1124 wd->sc_dk.dk_cpulabel); 1125 if (errstring) { 1126 /* 1127 * This probably happened because the drive's default 1128 * geometry doesn't match the DOS geometry. We 1129 * assume the DOS geometry is now in the label and try 1130 * again. XXX This is a kluge. 1131 */ 1132 if (wd->drvp->state > RESET) { 1133 s = splbio(); 1134 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1135 splx(s); 1136 } 1137 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1138 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1139 } 1140 if (errstring) { 1141 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1142 return; 1143 } 1144 1145 if (wd->drvp->state > RESET) { 1146 s = splbio(); 1147 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1148 splx(s); 1149 } 1150 #ifdef HAS_BAD144_HANDLING 1151 if ((lp->d_flags & D_BADSECT) != 0) 1152 bad144intern(wd); 1153 #endif 1154 } 1155 1156 void 1157 wdperror(const struct wd_softc *wd) 1158 { 1159 static const char *const errstr0_3[] = {"address mark not found", 1160 "track 0 not found", "aborted command", "media change requested", 1161 "id not found", "media changed", "uncorrectable data error", 1162 "bad block detected"}; 1163 static const char *const errstr4_5[] = { 1164 "obsolete (address mark not found)", 1165 "no media/write protected", "aborted command", 1166 "media change requested", "id not found", "media changed", 1167 "uncorrectable data error", "interface CRC error"}; 1168 const char *const *errstr; 1169 int i; 1170 const char *sep = ""; 1171 1172 const char *devname = device_xname(wd->sc_dev); 1173 struct ata_drive_datas *drvp = wd->drvp; 1174 int errno = wd->sc_wdc_bio.r_error; 1175 1176 if (drvp->ata_vers >= 4) 1177 errstr = errstr4_5; 1178 else 1179 errstr = errstr0_3; 1180 1181 printf("%s: (", devname); 1182 1183 if (errno == 0) 1184 printf("error not notified"); 1185 1186 for (i = 0; i < 8; i++) { 1187 if (errno & (1 << i)) { 1188 printf("%s%s", sep, errstr[i]); 1189 sep = ", "; 1190 } 1191 } 1192 printf(")\n"); 1193 } 1194 1195 int 1196 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1197 { 1198 struct wd_softc *wd = 1199 device_lookup_private(&wd_cd, WDUNIT(dev)); 1200 int error, s; 1201 #ifdef __HAVE_OLD_DISKLABEL 1202 struct disklabel *newlabel = NULL; 1203 #endif 1204 1205 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1206 1207 if ((wd->sc_flags & WDF_LOADED) == 0) 1208 return EIO; 1209 1210 error = disk_ioctl(&wd->sc_dk, dev, xfer, addr, flag, l); 1211 if (error != EPASSTHROUGH) 1212 return error; 1213 1214 error = 0; 1215 switch (xfer) { 1216 #ifdef HAS_BAD144_HANDLING 1217 case DIOCSBAD: 1218 if ((flag & FWRITE) == 0) 1219 return EBADF; 1220 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1221 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1222 bad144intern(wd); 1223 return 0; 1224 #endif 1225 #ifdef WD_SOFTBADSECT 1226 case DIOCBSLIST : 1227 { 1228 uint32_t count, missing, skip; 1229 struct disk_badsecinfo dbsi; 1230 struct disk_badsectors *dbs; 1231 size_t available; 1232 uint8_t *laddr; 1233 1234 dbsi = *(struct disk_badsecinfo *)addr; 1235 missing = wd->sc_bscount; 1236 count = 0; 1237 available = dbsi.dbsi_bufsize; 1238 skip = dbsi.dbsi_skip; 1239 laddr = (uint8_t *)dbsi.dbsi_buffer; 1240 1241 /* 1242 * We start this loop with the expectation that all of the 1243 * entries will be missed and decrement this counter each 1244 * time we either skip over one (already copied out) or 1245 * we actually copy it back to user space. The structs 1246 * holding the bad sector information are copied directly 1247 * back to user space whilst the summary is returned via 1248 * the struct passed in via the ioctl. 1249 */ 1250 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1251 if (skip > 0) { 1252 missing--; 1253 skip--; 1254 continue; 1255 } 1256 if (available < sizeof(*dbs)) 1257 break; 1258 available -= sizeof(*dbs); 1259 copyout(dbs, laddr, sizeof(*dbs)); 1260 laddr += sizeof(*dbs); 1261 missing--; 1262 count++; 1263 } 1264 dbsi.dbsi_left = missing; 1265 dbsi.dbsi_copied = count; 1266 *(struct disk_badsecinfo *)addr = dbsi; 1267 return 0; 1268 } 1269 1270 case DIOCBSFLUSH : 1271 /* Clean out the bad sector list */ 1272 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1273 void *head = SLIST_FIRST(&wd->sc_bslist); 1274 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1275 free(head, M_TEMP); 1276 } 1277 wd->sc_bscount = 0; 1278 return 0; 1279 #endif 1280 1281 case DIOCWDINFO: 1282 case DIOCSDINFO: 1283 #ifdef __HAVE_OLD_DISKLABEL 1284 case ODIOCWDINFO: 1285 case ODIOCSDINFO: 1286 #endif 1287 { 1288 struct disklabel *lp; 1289 1290 if ((flag & FWRITE) == 0) 1291 return EBADF; 1292 1293 #ifdef __HAVE_OLD_DISKLABEL 1294 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1295 newlabel = malloc(sizeof *newlabel, M_TEMP, 1296 M_WAITOK | M_ZERO); 1297 if (newlabel == NULL) 1298 return EIO; 1299 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1300 lp = newlabel; 1301 } else 1302 #endif 1303 lp = (struct disklabel *)addr; 1304 1305 mutex_enter(&wd->sc_dk.dk_openlock); 1306 wd->sc_flags |= WDF_LABELLING; 1307 1308 error = setdisklabel(wd->sc_dk.dk_label, 1309 lp, /*wd->sc_dk.dk_openmask : */0, 1310 wd->sc_dk.dk_cpulabel); 1311 if (error == 0) { 1312 if (wd->drvp->state > RESET) { 1313 s = splbio(); 1314 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1315 splx(s); 1316 } 1317 if (xfer == DIOCWDINFO 1318 #ifdef __HAVE_OLD_DISKLABEL 1319 || xfer == ODIOCWDINFO 1320 #endif 1321 ) 1322 error = writedisklabel(WDLABELDEV(dev), 1323 wdstrategy, wd->sc_dk.dk_label, 1324 wd->sc_dk.dk_cpulabel); 1325 } 1326 1327 wd->sc_flags &= ~WDF_LABELLING; 1328 mutex_exit(&wd->sc_dk.dk_openlock); 1329 #ifdef __HAVE_OLD_DISKLABEL 1330 if (newlabel != NULL) 1331 free(newlabel, M_TEMP); 1332 #endif 1333 return error; 1334 } 1335 1336 case DIOCKLABEL: 1337 if (*(int *)addr) 1338 wd->sc_flags |= WDF_KLABEL; 1339 else 1340 wd->sc_flags &= ~WDF_KLABEL; 1341 return 0; 1342 1343 case DIOCWLABEL: 1344 if ((flag & FWRITE) == 0) 1345 return EBADF; 1346 if (*(int *)addr) 1347 wd->sc_flags |= WDF_WLABEL; 1348 else 1349 wd->sc_flags &= ~WDF_WLABEL; 1350 return 0; 1351 1352 case DIOCGDEFLABEL: 1353 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1354 return 0; 1355 #ifdef __HAVE_OLD_DISKLABEL 1356 case ODIOCGDEFLABEL: 1357 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1358 if (newlabel == NULL) 1359 return EIO; 1360 wdgetdefaultlabel(wd, newlabel); 1361 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1362 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1363 else 1364 error = ENOTTY; 1365 free(newlabel, M_TEMP); 1366 return error; 1367 #endif 1368 1369 #ifdef notyet 1370 case DIOCWFORMAT: 1371 if ((flag & FWRITE) == 0) 1372 return EBADF; 1373 { 1374 register struct format_op *fop; 1375 struct iovec aiov; 1376 struct uio auio; 1377 1378 fop = (struct format_op *)addr; 1379 aiov.iov_base = fop->df_buf; 1380 aiov.iov_len = fop->df_count; 1381 auio.uio_iov = &aiov; 1382 auio.uio_iovcnt = 1; 1383 auio.uio_resid = fop->df_count; 1384 auio.uio_offset = 1385 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1386 auio.uio_vmspace = l->l_proc->p_vmspace; 1387 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1388 &auio); 1389 fop->df_count -= auio.uio_resid; 1390 fop->df_reg[0] = wdc->sc_status; 1391 fop->df_reg[1] = wdc->sc_error; 1392 return error; 1393 } 1394 #endif 1395 case DIOCGCACHE: 1396 return wd_getcache(wd, (int *)addr); 1397 1398 case DIOCSCACHE: 1399 return wd_setcache(wd, *(int *)addr); 1400 1401 case DIOCCACHESYNC: 1402 return wd_flushcache(wd, AT_WAIT); 1403 1404 case ATAIOCCOMMAND: 1405 /* 1406 * Make sure this command is (relatively) safe first 1407 */ 1408 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1409 (flag & FWRITE) == 0) 1410 return (EBADF); 1411 { 1412 struct wd_ioctl *wi; 1413 atareq_t *atareq = (atareq_t *) addr; 1414 int error1; 1415 1416 wi = wi_get(); 1417 wi->wi_softc = wd; 1418 wi->wi_atareq = *atareq; 1419 1420 if (atareq->datalen && atareq->flags & 1421 (ATACMD_READ | ATACMD_WRITE)) { 1422 void *tbuf; 1423 if (atareq->datalen < DEV_BSIZE 1424 && atareq->command == WDCC_IDENTIFY) { 1425 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1426 wi->wi_iov.iov_base = tbuf; 1427 wi->wi_iov.iov_len = DEV_BSIZE; 1428 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1429 } else { 1430 tbuf = NULL; 1431 wi->wi_iov.iov_base = atareq->databuf; 1432 wi->wi_iov.iov_len = atareq->datalen; 1433 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1434 } 1435 wi->wi_uio.uio_iov = &wi->wi_iov; 1436 wi->wi_uio.uio_iovcnt = 1; 1437 wi->wi_uio.uio_resid = atareq->datalen; 1438 wi->wi_uio.uio_offset = 0; 1439 wi->wi_uio.uio_rw = 1440 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1441 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1442 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1443 wdminphys, &wi->wi_uio); 1444 if (tbuf != NULL && error1 == 0) { 1445 error1 = copyout(tbuf, atareq->databuf, 1446 atareq->datalen); 1447 free(tbuf, M_TEMP); 1448 } 1449 } else { 1450 /* No need to call physio if we don't have any 1451 user data */ 1452 wi->wi_bp.b_flags = 0; 1453 wi->wi_bp.b_data = 0; 1454 wi->wi_bp.b_bcount = 0; 1455 wi->wi_bp.b_dev = 0; 1456 wi->wi_bp.b_proc = l->l_proc; 1457 wdioctlstrategy(&wi->wi_bp); 1458 error1 = wi->wi_bp.b_error; 1459 } 1460 *atareq = wi->wi_atareq; 1461 wi_free(wi); 1462 return(error1); 1463 } 1464 1465 case DIOCGSTRATEGY: 1466 { 1467 struct disk_strategy *dks = (void *)addr; 1468 1469 s = splbio(); 1470 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1471 sizeof(dks->dks_name)); 1472 splx(s); 1473 dks->dks_paramlen = 0; 1474 1475 return 0; 1476 } 1477 1478 case DIOCSSTRATEGY: 1479 { 1480 struct disk_strategy *dks = (void *)addr; 1481 struct bufq_state *new; 1482 struct bufq_state *old; 1483 1484 if ((flag & FWRITE) == 0) { 1485 return EBADF; 1486 } 1487 if (dks->dks_param != NULL) { 1488 return EINVAL; 1489 } 1490 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1491 error = bufq_alloc(&new, dks->dks_name, 1492 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1493 if (error) { 1494 return error; 1495 } 1496 s = splbio(); 1497 old = wd->sc_q; 1498 bufq_move(new, old); 1499 wd->sc_q = new; 1500 splx(s); 1501 bufq_free(old); 1502 1503 return 0; 1504 } 1505 1506 default: 1507 return ENOTTY; 1508 } 1509 1510 #ifdef DIAGNOSTIC 1511 panic("wdioctl: impossible"); 1512 #endif 1513 } 1514 1515 static int 1516 wddiscard(dev_t dev, off_t pos, off_t len) 1517 { 1518 struct wd_softc *wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1519 daddr_t bno; 1520 long size, done; 1521 long maxatonce, amount; 1522 int result; 1523 1524 if (!(wd->sc_params.atap_ata_major & WDC_VER_ATA7) 1525 || !(wd->sc_params.support_dsm & ATA_SUPPORT_DSM_TRIM)) { 1526 /* not supported; ignore request */ 1527 ATADEBUG_PRINT(("wddiscard (unsupported)\n"), DEBUG_FUNCS); 1528 return 0; 1529 } 1530 maxatonce = 0xffff; /*wd->sc_params.max_dsm_blocks*/ 1531 1532 ATADEBUG_PRINT(("wddiscard\n"), DEBUG_FUNCS); 1533 1534 if ((wd->sc_flags & WDF_LOADED) == 0) 1535 return EIO; 1536 1537 /* round the start up and the end down */ 1538 bno = (pos + DEV_BSIZE - 1) >> DEV_BSHIFT; 1539 size = ((pos + len) >> DEV_BSHIFT) - bno; 1540 1541 done = 0; 1542 while (done < size) { 1543 amount = size - done; 1544 if (amount > maxatonce) { 1545 amount = maxatonce; 1546 } 1547 result = wd_trim(wd, WDPART(dev), bno + done, amount); 1548 if (result) { 1549 return result; 1550 } 1551 done += amount; 1552 } 1553 return 0; 1554 } 1555 1556 #ifdef B_FORMAT 1557 int 1558 wdformat(struct buf *bp) 1559 { 1560 1561 bp->b_flags |= B_FORMAT; 1562 return wdstrategy(bp); 1563 } 1564 #endif 1565 1566 int 1567 wdsize(dev_t dev) 1568 { 1569 struct wd_softc *wd; 1570 int part, omask; 1571 int size; 1572 1573 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1574 1575 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1576 if (wd == NULL) 1577 return (-1); 1578 1579 part = WDPART(dev); 1580 omask = wd->sc_dk.dk_openmask & (1 << part); 1581 1582 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1583 return (-1); 1584 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1585 size = -1; 1586 else 1587 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1588 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1589 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1590 return (-1); 1591 return (size); 1592 } 1593 1594 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 1595 static int wddoingadump = 0; 1596 static int wddumprecalibrated = 0; 1597 1598 /* 1599 * Dump core after a system crash. 1600 */ 1601 int 1602 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1603 { 1604 struct wd_softc *wd; /* disk unit to do the I/O */ 1605 struct disklabel *lp; /* disk's disklabel */ 1606 int part, err; 1607 int nblks; /* total number of sectors left to write */ 1608 1609 /* Check if recursive dump; if so, punt. */ 1610 if (wddoingadump) 1611 return EFAULT; 1612 wddoingadump = 1; 1613 1614 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1615 if (wd == NULL) 1616 return (ENXIO); 1617 1618 part = WDPART(dev); 1619 1620 /* Convert to disk sectors. Request must be a multiple of size. */ 1621 lp = wd->sc_dk.dk_label; 1622 if ((size % lp->d_secsize) != 0) 1623 return EFAULT; 1624 nblks = size / lp->d_secsize; 1625 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1626 1627 /* Check transfer bounds against partition size. */ 1628 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1629 return EINVAL; 1630 1631 /* Offset block number to start of partition. */ 1632 blkno += lp->d_partitions[part].p_offset; 1633 1634 /* Recalibrate, if first dump transfer. */ 1635 if (wddumprecalibrated == 0) { 1636 wddumprecalibrated = 1; 1637 (*wd->atabus->ata_reset_drive)(wd->drvp, 1638 AT_POLL | AT_RST_EMERG, NULL); 1639 wd->drvp->state = RESET; 1640 } 1641 1642 wd->sc_bp = NULL; 1643 wd->sc_wdc_bio.blkno = blkno; 1644 wd->sc_wdc_bio.flags = ATA_POLL; 1645 if (wd->sc_flags & WDF_LBA48 && 1646 (wd->sc_wdc_bio.blkno + nblks) > wd->sc_capacity28) 1647 wd->sc_wdc_bio.flags |= ATA_LBA48; 1648 if (wd->sc_flags & WDF_LBA) 1649 wd->sc_wdc_bio.flags |= ATA_LBA; 1650 wd->sc_wdc_bio.bcount = nblks * lp->d_secsize; 1651 wd->sc_wdc_bio.databuf = va; 1652 #ifndef WD_DUMP_NOT_TRUSTED 1653 switch (err = wd->atabus->ata_bio(wd->drvp, &wd->sc_wdc_bio)) { 1654 case ATACMD_TRY_AGAIN: 1655 panic("wddump: try again"); 1656 break; 1657 case ATACMD_QUEUED: 1658 panic("wddump: polled command has been queued"); 1659 break; 1660 case ATACMD_COMPLETE: 1661 break; 1662 default: 1663 panic("wddump: unknown atacmd code %d", err); 1664 } 1665 switch(err = wd->sc_wdc_bio.error) { 1666 case TIMEOUT: 1667 printf("wddump: device timed out"); 1668 err = EIO; 1669 break; 1670 case ERR_DF: 1671 printf("wddump: drive fault"); 1672 err = EIO; 1673 break; 1674 case ERR_DMA: 1675 printf("wddump: DMA error"); 1676 err = EIO; 1677 break; 1678 case ERROR: 1679 printf("wddump: "); 1680 wdperror(wd); 1681 err = EIO; 1682 break; 1683 case NOERROR: 1684 err = 0; 1685 break; 1686 default: 1687 panic("wddump: unknown error type %d", err); 1688 } 1689 if (err != 0) { 1690 printf("\n"); 1691 return err; 1692 } 1693 #else /* WD_DUMP_NOT_TRUSTED */ 1694 /* Let's just talk about this first... */ 1695 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1696 unit, va, cylin, head, sector); 1697 delay(500 * 1000); /* half a second */ 1698 #endif 1699 1700 wddoingadump = 0; 1701 return 0; 1702 } 1703 1704 #ifdef HAS_BAD144_HANDLING 1705 /* 1706 * Internalize the bad sector table. 1707 */ 1708 void 1709 bad144intern(struct wd_softc *wd) 1710 { 1711 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1712 struct disklabel *lp = wd->sc_dk.dk_label; 1713 int i = 0; 1714 1715 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1716 1717 for (; i < NBT_BAD; i++) { 1718 if (bt->bt_bad[i].bt_cyl == 0xffff) 1719 break; 1720 wd->sc_badsect[i] = 1721 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1722 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1723 (bt->bt_bad[i].bt_trksec & 0xff); 1724 } 1725 for (; i < NBT_BAD+1; i++) 1726 wd->sc_badsect[i] = -1; 1727 } 1728 #endif 1729 1730 static void 1731 wd_params_to_properties(struct wd_softc *wd, struct ataparams *params) 1732 { 1733 struct disk_geom *dg = &wd->sc_dk.dk_geom; 1734 1735 memset(dg, 0, sizeof(*dg)); 1736 1737 dg->dg_secperunit = wd->sc_capacity; 1738 dg->dg_secsize = DEV_BSIZE /* XXX 512? */; 1739 dg->dg_nsectors = wd->sc_params.atap_sectors; 1740 dg->dg_ntracks = wd->sc_params.atap_heads; 1741 if ((wd->sc_flags & WDF_LBA) == 0) 1742 dg->dg_ncylinders = wd->sc_params.atap_cylinders; 1743 1744 /* XXX Should have a case for ATA here, too. */ 1745 const char *cp = strcmp(wd->sc_params.atap_model, "ST506") ? 1746 "ST506" : "ESDI"; 1747 1748 disk_set_info(wd->sc_dev, &wd->sc_dk, cp); 1749 } 1750 1751 int 1752 wd_get_params(struct wd_softc *wd, uint8_t flags, struct ataparams *params) 1753 { 1754 1755 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1756 case CMD_AGAIN: 1757 return 1; 1758 case CMD_ERR: 1759 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1760 return 1; 1761 /* 1762 * We `know' there's a drive here; just assume it's old. 1763 * This geometry is only used to read the MBR and print a 1764 * (false) attach message. 1765 */ 1766 strncpy(params->atap_model, "ST506", 1767 sizeof params->atap_model); 1768 params->atap_config = ATA_CFG_FIXED; 1769 params->atap_cylinders = 1024; 1770 params->atap_heads = 8; 1771 params->atap_sectors = 17; 1772 params->atap_multi = 1; 1773 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1774 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1775 /* FALLTHROUGH */ 1776 case CMD_OK: 1777 wd_params_to_properties(wd, params); 1778 return 0; 1779 default: 1780 panic("wd_get_params: bad return code from ata_get_params"); 1781 /* NOTREACHED */ 1782 } 1783 } 1784 1785 int 1786 wd_getcache(struct wd_softc *wd, int *bitsp) 1787 { 1788 struct ataparams params; 1789 1790 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1791 return EIO; 1792 if (params.atap_cmd_set1 == 0x0000 || 1793 params.atap_cmd_set1 == 0xffff || 1794 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1795 *bitsp = 0; 1796 return 0; 1797 } 1798 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1799 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1800 *bitsp |= DKCACHE_WRITE; 1801 1802 return 0; 1803 } 1804 1805 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1806 1807 int 1808 wd_setcache(struct wd_softc *wd, int bits) 1809 { 1810 struct ataparams params; 1811 struct ata_command ata_c; 1812 1813 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1814 return EIO; 1815 1816 if (params.atap_cmd_set1 == 0x0000 || 1817 params.atap_cmd_set1 == 0xffff || 1818 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1819 return EOPNOTSUPP; 1820 1821 if ((bits & DKCACHE_READ) == 0 || 1822 (bits & DKCACHE_SAVE) != 0) 1823 return EOPNOTSUPP; 1824 1825 memset(&ata_c, 0, sizeof(struct ata_command)); 1826 ata_c.r_command = SET_FEATURES; 1827 ata_c.r_st_bmask = 0; 1828 ata_c.r_st_pmask = 0; 1829 ata_c.timeout = 30000; /* 30s timeout */ 1830 ata_c.flags = AT_WAIT; 1831 if (bits & DKCACHE_WRITE) 1832 ata_c.r_features = WDSF_WRITE_CACHE_EN; 1833 else 1834 ata_c.r_features = WDSF_WRITE_CACHE_DS; 1835 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1836 aprint_error_dev(wd->sc_dev, 1837 "wd_setcache command not complete\n"); 1838 return EIO; 1839 } 1840 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1841 char sbuf[sizeof(at_errbits) + 64]; 1842 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1843 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1844 return EIO; 1845 } 1846 return 0; 1847 } 1848 1849 static int 1850 wd_standby(struct wd_softc *wd, int flags) 1851 { 1852 struct ata_command ata_c; 1853 1854 memset(&ata_c, 0, sizeof(struct ata_command)); 1855 ata_c.r_command = WDCC_STANDBY_IMMED; 1856 ata_c.r_st_bmask = WDCS_DRDY; 1857 ata_c.r_st_pmask = WDCS_DRDY; 1858 ata_c.flags = flags; 1859 ata_c.timeout = 30000; /* 30s timeout */ 1860 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1861 aprint_error_dev(wd->sc_dev, 1862 "standby immediate command didn't complete\n"); 1863 return EIO; 1864 } 1865 if (ata_c.flags & AT_ERROR) { 1866 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1867 return ENODEV; 1868 } 1869 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1870 char sbuf[sizeof(at_errbits) + 64]; 1871 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1872 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1873 return EIO; 1874 } 1875 return 0; 1876 } 1877 1878 int 1879 wd_flushcache(struct wd_softc *wd, int flags) 1880 { 1881 struct ata_command ata_c; 1882 1883 /* 1884 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1885 * only ATA-2 and still support it. 1886 */ 1887 if (wd->drvp->ata_vers < 4 && 1888 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1889 wd->sc_params.atap_cmd_set2 == 0xffff)) 1890 return ENODEV; 1891 memset(&ata_c, 0, sizeof(struct ata_command)); 1892 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1893 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1894 ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1895 flags |= AT_LBA48; 1896 } else 1897 ata_c.r_command = WDCC_FLUSHCACHE; 1898 ata_c.r_st_bmask = WDCS_DRDY; 1899 ata_c.r_st_pmask = WDCS_DRDY; 1900 ata_c.flags = flags | AT_READREG; 1901 ata_c.timeout = 300000; /* 5m timeout */ 1902 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1903 aprint_error_dev(wd->sc_dev, 1904 "flush cache command didn't complete\n"); 1905 return EIO; 1906 } 1907 if (ata_c.flags & AT_ERROR) { 1908 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1909 return ENODEV; 1910 } 1911 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1912 char sbuf[sizeof(at_errbits) + 64]; 1913 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1914 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 1915 sbuf); 1916 return EIO; 1917 } 1918 return 0; 1919 } 1920 1921 int 1922 wd_trim(struct wd_softc *wd, int part, daddr_t bno, long size) 1923 { 1924 struct ata_command ata_c; 1925 unsigned char *req; 1926 1927 if (part != RAW_PART) 1928 bno += wd->sc_dk.dk_label->d_partitions[part].p_offset;; 1929 1930 req = kmem_zalloc(512, KM_SLEEP); 1931 req[0] = bno & 0xff; 1932 req[1] = (bno >> 8) & 0xff; 1933 req[2] = (bno >> 16) & 0xff; 1934 req[3] = (bno >> 24) & 0xff; 1935 req[4] = (bno >> 32) & 0xff; 1936 req[5] = (bno >> 40) & 0xff; 1937 req[6] = size & 0xff; 1938 req[7] = (size >> 8) & 0xff; 1939 1940 memset(&ata_c, 0, sizeof(struct ata_command)); 1941 ata_c.r_command = ATA_DATA_SET_MANAGEMENT; 1942 ata_c.r_count = 1; 1943 ata_c.r_features = ATA_SUPPORT_DSM_TRIM; 1944 ata_c.r_st_bmask = WDCS_DRDY; 1945 ata_c.r_st_pmask = WDCS_DRDY; 1946 ata_c.timeout = 30000; /* 30s timeout */ 1947 ata_c.data = req; 1948 ata_c.bcount = 512; 1949 ata_c.flags |= AT_WRITE | AT_WAIT; 1950 if (wd->atabus->ata_exec_command(wd->drvp, &ata_c) != ATACMD_COMPLETE) { 1951 aprint_error_dev(wd->sc_dev, 1952 "trim command didn't complete\n"); 1953 kmem_free(req, 512); 1954 return EIO; 1955 } 1956 kmem_free(req, 512); 1957 if (ata_c.flags & AT_ERROR) { 1958 if (ata_c.r_error == WDCE_ABRT) /* command not supported */ 1959 return ENODEV; 1960 } 1961 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1962 char sbuf[sizeof(at_errbits) + 64]; 1963 snprintb(sbuf, sizeof(sbuf), at_errbits, ata_c.flags); 1964 aprint_error_dev(wd->sc_dev, "wd_trim: status=%s\n", 1965 sbuf); 1966 return EIO; 1967 } 1968 return 0; 1969 } 1970 1971 bool 1972 wd_shutdown(device_t dev, int how) 1973 { 1974 struct wd_softc *wd = device_private(dev); 1975 1976 /* the adapter needs to be enabled */ 1977 if (wd->atabus->ata_addref(wd->drvp)) 1978 return true; /* no need to complain */ 1979 1980 wd_flushcache(wd, AT_POLL); 1981 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 1982 wd_standby(wd, AT_POLL); 1983 return true; 1984 } 1985 1986 /* 1987 * Allocate space for a ioctl queue structure. Mostly taken from 1988 * scsipi_ioctl.c 1989 */ 1990 struct wd_ioctl * 1991 wi_get(void) 1992 { 1993 struct wd_ioctl *wi; 1994 int s; 1995 1996 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 1997 buf_init(&wi->wi_bp); 1998 s = splbio(); 1999 LIST_INSERT_HEAD(&wi_head, wi, wi_list); 2000 splx(s); 2001 return (wi); 2002 } 2003 2004 /* 2005 * Free an ioctl structure and remove it from our list 2006 */ 2007 2008 void 2009 wi_free(struct wd_ioctl *wi) 2010 { 2011 int s; 2012 2013 s = splbio(); 2014 LIST_REMOVE(wi, wi_list); 2015 splx(s); 2016 buf_destroy(&wi->wi_bp); 2017 free(wi, M_TEMP); 2018 } 2019 2020 /* 2021 * Find a wd_ioctl structure based on the struct buf. 2022 */ 2023 2024 struct wd_ioctl * 2025 wi_find(struct buf *bp) 2026 { 2027 struct wd_ioctl *wi; 2028 int s; 2029 2030 s = splbio(); 2031 for (wi = wi_head.lh_first; wi != 0; wi = wi->wi_list.le_next) 2032 if (bp == &wi->wi_bp) 2033 break; 2034 splx(s); 2035 return (wi); 2036 } 2037 2038 /* 2039 * Ioctl pseudo strategy routine 2040 * 2041 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2042 * happens here is: 2043 * 2044 * - wdioctl() queues a wd_ioctl structure. 2045 * 2046 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2047 * user space I/O is required. If physio() is called, physio() eventually 2048 * calls wdioctlstrategy(). 2049 * 2050 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2051 * to perform the actual command 2052 * 2053 * The reason for the use of the pseudo strategy routine is because 2054 * when doing I/O to/from user space, physio _really_ wants to be in 2055 * the loop. We could put the entire buffer into the ioctl request 2056 * structure, but that won't scale if we want to do things like download 2057 * microcode. 2058 */ 2059 2060 void 2061 wdioctlstrategy(struct buf *bp) 2062 { 2063 struct wd_ioctl *wi; 2064 struct ata_command ata_c; 2065 int error = 0; 2066 2067 wi = wi_find(bp); 2068 if (wi == NULL) { 2069 printf("wdioctlstrategy: " 2070 "No matching ioctl request found in queue\n"); 2071 error = EINVAL; 2072 goto bad; 2073 } 2074 2075 memset(&ata_c, 0, sizeof(ata_c)); 2076 2077 /* 2078 * Abort if physio broke up the transfer 2079 */ 2080 2081 if (bp->b_bcount != wi->wi_atareq.datalen) { 2082 printf("physio split wd ioctl request... cannot proceed\n"); 2083 error = EIO; 2084 goto bad; 2085 } 2086 2087 /* 2088 * Abort if we didn't get a buffer size that was a multiple of 2089 * our sector size (or was larger than NBBY) 2090 */ 2091 2092 if ((bp->b_bcount % wi->wi_softc->sc_dk.dk_label->d_secsize) != 0 || 2093 (bp->b_bcount / wi->wi_softc->sc_dk.dk_label->d_secsize) >= 2094 (1 << NBBY)) { 2095 error = EINVAL; 2096 goto bad; 2097 } 2098 2099 /* 2100 * Make sure a timeout was supplied in the ioctl request 2101 */ 2102 2103 if (wi->wi_atareq.timeout == 0) { 2104 error = EINVAL; 2105 goto bad; 2106 } 2107 2108 if (wi->wi_atareq.flags & ATACMD_READ) 2109 ata_c.flags |= AT_READ; 2110 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2111 ata_c.flags |= AT_WRITE; 2112 2113 if (wi->wi_atareq.flags & ATACMD_READREG) 2114 ata_c.flags |= AT_READREG; 2115 2116 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2117 ata_c.flags |= AT_LBA; 2118 2119 ata_c.flags |= AT_WAIT; 2120 2121 ata_c.timeout = wi->wi_atareq.timeout; 2122 ata_c.r_command = wi->wi_atareq.command; 2123 ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2124 (wi->wi_atareq.cylinder << 8) | 2125 wi->wi_atareq.sec_num; 2126 ata_c.r_count = wi->wi_atareq.sec_count; 2127 ata_c.r_features = wi->wi_atareq.features; 2128 ata_c.r_st_bmask = WDCS_DRDY; 2129 ata_c.r_st_pmask = WDCS_DRDY; 2130 ata_c.data = wi->wi_bp.b_data; 2131 ata_c.bcount = wi->wi_bp.b_bcount; 2132 2133 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, &ata_c) 2134 != ATACMD_COMPLETE) { 2135 wi->wi_atareq.retsts = ATACMD_ERROR; 2136 goto bad; 2137 } 2138 2139 if (ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2140 if (ata_c.flags & AT_ERROR) { 2141 wi->wi_atareq.retsts = ATACMD_ERROR; 2142 wi->wi_atareq.error = ata_c.r_error; 2143 } else if (ata_c.flags & AT_DF) 2144 wi->wi_atareq.retsts = ATACMD_DF; 2145 else 2146 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2147 } else { 2148 wi->wi_atareq.retsts = ATACMD_OK; 2149 if (wi->wi_atareq.flags & ATACMD_READREG) { 2150 wi->wi_atareq.command = ata_c.r_status; 2151 wi->wi_atareq.features = ata_c.r_error; 2152 wi->wi_atareq.sec_count = ata_c.r_count; 2153 wi->wi_atareq.sec_num = ata_c.r_lba & 0xff; 2154 wi->wi_atareq.head = (ata_c.r_device & 0xf0) | 2155 ((ata_c.r_lba >> 24) & 0x0f); 2156 wi->wi_atareq.cylinder = (ata_c.r_lba >> 8) & 0xffff; 2157 wi->wi_atareq.error = ata_c.r_error; 2158 } 2159 } 2160 2161 bp->b_error = 0; 2162 biodone(bp); 2163 return; 2164 bad: 2165 bp->b_error = error; 2166 bp->b_resid = bp->b_bcount; 2167 biodone(bp); 2168 } 2169
Indexes created Wed Oct 22 13:09:56 GMT 2025