wd.c revision 1.430
1 /* $NetBSD: wd.c,v 1.430 2017/10/07 16:05:32 jdolecek 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 1.430 2017/10/07 16:05:32 jdolecek Exp $"); 58 59 #include "opt_ata.h" 60 #include "opt_wd.h" 61 62 #include <sys/param.h> 63 #include <sys/systm.h> 64 #include <sys/kernel.h> 65 #include <sys/conf.h> 66 #include <sys/file.h> 67 #include <sys/stat.h> 68 #include <sys/ioctl.h> 69 #include <sys/buf.h> 70 #include <sys/bufq.h> 71 #include <sys/uio.h> 72 #include <sys/malloc.h> 73 #include <sys/device.h> 74 #include <sys/disklabel.h> 75 #include <sys/disk.h> 76 #include <sys/syslog.h> 77 #include <sys/proc.h> 78 #include <sys/reboot.h> 79 #include <sys/vnode.h> 80 #include <sys/rndsource.h> 81 82 #include <sys/intr.h> 83 #include <sys/bus.h> 84 85 #include <dev/ata/atareg.h> 86 #include <dev/ata/atavar.h> 87 #include <dev/ata/wdvar.h> 88 #include <dev/ic/wdcreg.h> 89 #include <sys/ataio.h> 90 #include "locators.h" 91 92 #include <prop/proplib.h> 93 94 #define WDIORETRIES_SINGLE 4 /* number of retries for single-sector */ 95 #define WDIORETRIES 5 /* number of retries before giving up */ 96 #define RECOVERYTIME hz/2 /* time to wait before retrying a cmd */ 97 98 #define WDUNIT(dev) DISKUNIT(dev) 99 #define WDPART(dev) DISKPART(dev) 100 #define WDMINOR(unit, part) DISKMINOR(unit, part) 101 #define MAKEWDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 102 103 #define WDLABELDEV(dev) (MAKEWDDEV(major(dev), WDUNIT(dev), RAW_PART)) 104 105 #define DEBUG_INTR 0x01 106 #define DEBUG_XFERS 0x02 107 #define DEBUG_STATUS 0x04 108 #define DEBUG_FUNCS 0x08 109 #define DEBUG_PROBE 0x10 110 #ifdef ATADEBUG 111 int wdcdebug_wd_mask = 0x0; 112 #define ATADEBUG_PRINT(args, level) \ 113 if (wdcdebug_wd_mask & (level)) \ 114 printf args 115 #else 116 #define ATADEBUG_PRINT(args, level) 117 #endif 118 119 int wdprobe(device_t, cfdata_t, void *); 120 void wdattach(device_t, device_t, void *); 121 int wddetach(device_t, int); 122 int wdprint(void *, char *); 123 void wdperror(const struct wd_softc *, struct ata_xfer *); 124 125 static void wdminphys(struct buf *); 126 127 static int wdlastclose(device_t); 128 static bool wd_suspend(device_t, const pmf_qual_t *); 129 static int wd_standby(struct wd_softc *, int); 130 131 CFATTACH_DECL3_NEW(wd, sizeof(struct wd_softc), 132 wdprobe, wdattach, wddetach, NULL, NULL, NULL, DVF_DETACH_SHUTDOWN); 133 134 extern struct cfdriver wd_cd; 135 136 dev_type_open(wdopen); 137 dev_type_close(wdclose); 138 dev_type_read(wdread); 139 dev_type_write(wdwrite); 140 dev_type_ioctl(wdioctl); 141 dev_type_strategy(wdstrategy); 142 dev_type_dump(wddump); 143 dev_type_size(wdsize); 144 static dev_type_discard(wddiscard); 145 146 const struct bdevsw wd_bdevsw = { 147 .d_open = wdopen, 148 .d_close = wdclose, 149 .d_strategy = wdstrategy, 150 .d_ioctl = wdioctl, 151 .d_dump = wddump, 152 .d_psize = wdsize, 153 .d_discard = wddiscard, 154 .d_flag = D_DISK 155 }; 156 157 const struct cdevsw wd_cdevsw = { 158 .d_open = wdopen, 159 .d_close = wdclose, 160 .d_read = wdread, 161 .d_write = wdwrite, 162 .d_ioctl = wdioctl, 163 .d_stop = nostop, 164 .d_tty = notty, 165 .d_poll = nopoll, 166 .d_mmap = nommap, 167 .d_kqfilter = nokqfilter, 168 .d_discard = wddiscard, 169 .d_flag = D_DISK 170 }; 171 172 /* #define WD_DUMP_NOT_TRUSTED if you just want to watch */ 173 static int wddoingadump = 0; 174 static int wddumprecalibrated = 0; 175 176 /* 177 * Glue necessary to hook WDCIOCCOMMAND into physio 178 */ 179 180 struct wd_ioctl { 181 LIST_ENTRY(wd_ioctl) wi_list; 182 struct buf wi_bp; 183 struct uio wi_uio; 184 struct iovec wi_iov; 185 atareq_t wi_atareq; 186 struct wd_softc *wi_softc; 187 }; 188 189 struct wd_ioctl *wi_find(struct buf *); 190 void wi_free(struct wd_ioctl *); 191 struct wd_ioctl *wi_get(struct wd_softc *); 192 void wdioctlstrategy(struct buf *); 193 194 void wdgetdefaultlabel(struct wd_softc *, struct disklabel *); 195 void wdgetdisklabel(struct wd_softc *); 196 void wdstart(device_t); 197 void wdstart1(struct wd_softc *, struct buf *, struct ata_xfer *); 198 static void wdbiorestart(void *); 199 void wddone(device_t, struct ata_xfer *); 200 static void wd_params_to_properties(struct wd_softc *); 201 int wd_get_params(struct wd_softc *, uint8_t, struct ataparams *); 202 int wd_flushcache(struct wd_softc *, int, bool); 203 int wd_trim(struct wd_softc *, int, daddr_t, long); 204 bool wd_shutdown(device_t, int); 205 206 int wd_getcache(struct wd_softc *, int *); 207 int wd_setcache(struct wd_softc *, int); 208 209 static void wd_sysctl_attach(struct wd_softc *); 210 static void wd_sysctl_detach(struct wd_softc *); 211 212 struct dkdriver wddkdriver = { 213 .d_strategy = wdstrategy, 214 .d_minphys = wdminphys 215 }; 216 217 #ifdef HAS_BAD144_HANDLING 218 static void bad144intern(struct wd_softc *); 219 #endif 220 221 #define WD_QUIRK_SPLIT_MOD15_WRITE 0x0001 /* must split certain writes */ 222 223 #define WD_QUIRK_FMT "\20\1SPLIT_MOD15_WRITE\2FORCE_LBA48" 224 225 /* 226 * Quirk table for IDE drives. Put more-specific matches first, since 227 * a simple globing routine is used for matching. 228 */ 229 static const struct wd_quirk { 230 const char *wdq_match; /* inquiry pattern to match */ 231 int wdq_quirks; /* drive quirks */ 232 } wd_quirk_table[] = { 233 /* 234 * Some Seagate S-ATA drives have a PHY which can get confused 235 * with the way data is packetized by some S-ATA controllers. 236 * 237 * The work-around is to split in two any write transfer whose 238 * sector count % 15 == 1 (assuming 512 byte sectors). 239 * 240 * XXX This is an incomplete list. There are at least a couple 241 * XXX more model numbers. If you have trouble with such transfers 242 * XXX (8K is the most common) on Seagate S-ATA drives, please 243 * XXX notify thorpej (at) NetBSD.org. 244 * 245 * The ST360015AS has not yet been confirmed to have this 246 * issue, however, it is the only other drive in the 247 * Seagate Barracuda Serial ATA V family. 248 * 249 */ 250 { "ST3120023AS", 251 WD_QUIRK_SPLIT_MOD15_WRITE }, 252 { "ST380023AS", 253 WD_QUIRK_SPLIT_MOD15_WRITE }, 254 { "ST360015AS", 255 WD_QUIRK_SPLIT_MOD15_WRITE }, 256 { NULL, 257 0 } 258 }; 259 260 static const struct wd_quirk * 261 wd_lookup_quirks(const char *name) 262 { 263 const struct wd_quirk *wdq; 264 const char *estr; 265 266 for (wdq = wd_quirk_table; wdq->wdq_match != NULL; wdq++) { 267 /* 268 * We only want exact matches (which include matches 269 * against globbing characters). 270 */ 271 if (pmatch(name, wdq->wdq_match, &estr) == 2) 272 return (wdq); 273 } 274 return (NULL); 275 } 276 277 int 278 wdprobe(device_t parent, cfdata_t match, void *aux) 279 { 280 struct ata_device *adev = aux; 281 282 if (adev == NULL) 283 return 0; 284 if (adev->adev_bustype->bustype_type != SCSIPI_BUSTYPE_ATA) 285 return 0; 286 287 if (match->cf_loc[ATA_HLCF_DRIVE] != ATA_HLCF_DRIVE_DEFAULT && 288 match->cf_loc[ATA_HLCF_DRIVE] != adev->adev_drv_data->drive) 289 return 0; 290 return 1; 291 } 292 293 void 294 wdattach(device_t parent, device_t self, void *aux) 295 { 296 struct wd_softc *wd = device_private(self); 297 struct ata_device *adev= aux; 298 int i, blank; 299 char tbuf[41], pbuf[9], c, *p, *q; 300 const struct wd_quirk *wdq; 301 302 wd->sc_dev = self; 303 304 ATADEBUG_PRINT(("wdattach\n"), DEBUG_FUNCS | DEBUG_PROBE); 305 mutex_init(&wd->sc_lock, MUTEX_DEFAULT, IPL_BIO); 306 bufq_alloc(&wd->sc_q, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); 307 #ifdef WD_SOFTBADSECT 308 SLIST_INIT(&wd->sc_bslist); 309 #endif 310 wd->atabus = adev->adev_bustype; 311 wd->drvp = adev->adev_drv_data; 312 313 wd->drvp->drv_openings = 1; 314 wd->drvp->drv_start = wdstart; 315 wd->drvp->drv_done = wddone; 316 wd->drvp->drv_softc = wd->sc_dev; /* done in atabusconfig_thread() 317 but too late */ 318 319 aprint_naive("\n"); 320 aprint_normal("\n"); 321 322 /* read our drive info */ 323 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 324 aprint_error_dev(self, "IDENTIFY failed\n"); 325 goto out; 326 } 327 328 for (blank = 0, p = wd->sc_params.atap_model, q = tbuf, i = 0; 329 i < sizeof(wd->sc_params.atap_model); i++) { 330 c = *p++; 331 if (c == '\0') 332 break; 333 if (c != ' ') { 334 if (blank) { 335 *q++ = ' '; 336 blank = 0; 337 } 338 *q++ = c; 339 } else 340 blank = 1; 341 } 342 *q++ = '\0'; 343 344 aprint_normal_dev(self, "<%s>\n", tbuf); 345 346 wdq = wd_lookup_quirks(tbuf); 347 if (wdq != NULL) 348 wd->sc_quirks = wdq->wdq_quirks; 349 350 if (wd->sc_quirks != 0) { 351 char sbuf[sizeof(WD_QUIRK_FMT) + 64]; 352 snprintb(sbuf, sizeof(sbuf), WD_QUIRK_FMT, wd->sc_quirks); 353 aprint_normal_dev(self, "quirks %s\n", sbuf); 354 355 if (wd->sc_quirks & WD_QUIRK_SPLIT_MOD15_WRITE) { 356 aprint_error_dev(self, "drive corrupts write transfers with certain controllers, consider replacing\n"); 357 } 358 } 359 360 if ((wd->sc_params.atap_multi & 0xff) > 1) { 361 wd->drvp->multi = wd->sc_params.atap_multi & 0xff; 362 } else { 363 wd->drvp->multi = 1; 364 } 365 366 aprint_verbose_dev(self, "drive supports %d-sector PIO transfers,", 367 wd->drvp->multi); 368 369 /* 48-bit LBA addressing */ 370 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0) 371 wd->sc_flags |= WDF_LBA48; 372 373 /* Prior to ATA-4, LBA was optional. */ 374 if ((wd->sc_params.atap_capabilities1 & WDC_CAP_LBA) != 0) 375 wd->sc_flags |= WDF_LBA; 376 #if 0 377 /* ATA-4 requires LBA. */ 378 if (wd->sc_params.atap_ataversion != 0xffff && 379 wd->sc_params.atap_ataversion >= WDC_VER_ATA4) 380 wd->sc_flags |= WDF_LBA; 381 #endif 382 383 if ((wd->sc_flags & WDF_LBA48) != 0) { 384 aprint_verbose(" LBA48 addressing\n"); 385 wd->sc_capacity = 386 ((uint64_t) wd->sc_params.atap_max_lba[3] << 48) | 387 ((uint64_t) wd->sc_params.atap_max_lba[2] << 32) | 388 ((uint64_t) wd->sc_params.atap_max_lba[1] << 16) | 389 ((uint64_t) wd->sc_params.atap_max_lba[0] << 0); 390 wd->sc_capacity28 = 391 (wd->sc_params.atap_capacity[1] << 16) | 392 wd->sc_params.atap_capacity[0]; 393 } else if ((wd->sc_flags & WDF_LBA) != 0) { 394 aprint_verbose(" LBA addressing\n"); 395 wd->sc_capacity28 = wd->sc_capacity = 396 (wd->sc_params.atap_capacity[1] << 16) | 397 wd->sc_params.atap_capacity[0]; 398 } else { 399 aprint_verbose(" chs addressing\n"); 400 wd->sc_capacity28 = wd->sc_capacity = 401 wd->sc_params.atap_cylinders * 402 wd->sc_params.atap_heads * 403 wd->sc_params.atap_sectors; 404 } 405 if ((wd->sc_params.atap_secsz & ATA_SECSZ_VALID_MASK) == ATA_SECSZ_VALID 406 && ((wd->sc_params.atap_secsz & ATA_SECSZ_LLS) != 0)) { 407 wd->sc_blksize = 2ULL * 408 ((uint32_t)((wd->sc_params.atap_lls_secsz[1] << 16) | 409 wd->sc_params.atap_lls_secsz[0])); 410 } else { 411 wd->sc_blksize = 512; 412 } 413 wd->sc_capacity512 = (wd->sc_capacity * wd->sc_blksize) / DEV_BSIZE; 414 format_bytes(pbuf, sizeof(pbuf), wd->sc_capacity * wd->sc_blksize); 415 aprint_normal_dev(self, "%s, %d cyl, %d head, %d sec, " 416 "%d bytes/sect x %llu sectors\n", 417 pbuf, 418 (wd->sc_flags & WDF_LBA) ? (int)(wd->sc_capacity / 419 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors)) : 420 wd->sc_params.atap_cylinders, 421 wd->sc_params.atap_heads, wd->sc_params.atap_sectors, 422 wd->sc_blksize, (unsigned long long)wd->sc_capacity); 423 424 ATADEBUG_PRINT(("%s: atap_dmatiming_mimi=%d, atap_dmatiming_recom=%d\n", 425 device_xname(self), wd->sc_params.atap_dmatiming_mimi, 426 wd->sc_params.atap_dmatiming_recom), DEBUG_PROBE); 427 428 if (wd->sc_blksize <= 0 || !powerof2(wd->sc_blksize) || 429 wd->sc_blksize < DEV_BSIZE || wd->sc_blksize > MAXPHYS) { 430 aprint_normal_dev(self, "WARNING: block size %u " 431 "might not actually work\n", wd->sc_blksize); 432 } 433 434 out: 435 /* 436 * Initialize and attach the disk structure. 437 */ 438 /* we fill in dk_info later */ 439 disk_init(&wd->sc_dk, device_xname(wd->sc_dev), &wddkdriver); 440 disk_attach(&wd->sc_dk); 441 wd->drvp->lp = wd->sc_dk.dk_label; 442 wd_params_to_properties(wd); 443 rnd_attach_source(&wd->rnd_source, device_xname(wd->sc_dev), 444 RND_TYPE_DISK, RND_FLAG_DEFAULT); 445 446 /* Discover wedges on this disk. */ 447 dkwedge_discover(&wd->sc_dk); 448 449 if (!pmf_device_register1(self, wd_suspend, NULL, wd_shutdown)) 450 aprint_error_dev(self, "couldn't establish power handler\n"); 451 452 wd_sysctl_attach(wd); 453 } 454 455 static bool 456 wd_suspend(device_t dv, const pmf_qual_t *qual) 457 { 458 struct wd_softc *sc = device_private(dv); 459 460 /* the adapter needs to be enabled */ 461 if (sc->atabus->ata_addref(sc->drvp)) 462 return true; /* no need to complain */ 463 464 wd_flushcache(sc, AT_WAIT, false); 465 wd_standby(sc, AT_WAIT); 466 467 sc->atabus->ata_delref(sc->drvp); 468 return true; 469 } 470 471 int 472 wddetach(device_t self, int flags) 473 { 474 struct wd_softc *sc = device_private(self); 475 int bmaj, cmaj, i, mn, rc; 476 477 if ((rc = disk_begindetach(&sc->sc_dk, wdlastclose, self, flags)) != 0) 478 return rc; 479 480 /* locate the major number */ 481 bmaj = bdevsw_lookup_major(&wd_bdevsw); 482 cmaj = cdevsw_lookup_major(&wd_cdevsw); 483 484 /* Nuke the vnodes for any open instances. */ 485 for (i = 0; i < MAXPARTITIONS; i++) { 486 mn = WDMINOR(device_unit(self), i); 487 vdevgone(bmaj, mn, mn, VBLK); 488 vdevgone(cmaj, mn, mn, VCHR); 489 } 490 491 /* Delete all of our wedges. */ 492 dkwedge_delall(&sc->sc_dk); 493 494 mutex_enter(&sc->sc_lock); 495 496 /* Kill off any queued buffers. */ 497 bufq_drain(sc->sc_q); 498 499 sc->atabus->ata_killpending(sc->drvp); 500 mutex_exit(&sc->sc_lock); 501 502 if (flags & DETACH_POWEROFF) 503 wd_standby(sc, AT_POLL); 504 505 bufq_free(sc->sc_q); 506 507 /* Detach disk. */ 508 disk_detach(&sc->sc_dk); 509 disk_destroy(&sc->sc_dk); 510 511 #ifdef WD_SOFTBADSECT 512 /* Clean out the bad sector list */ 513 while (!SLIST_EMPTY(&sc->sc_bslist)) { 514 void *head = SLIST_FIRST(&sc->sc_bslist); 515 SLIST_REMOVE_HEAD(&sc->sc_bslist, dbs_next); 516 free(head, M_TEMP); 517 } 518 sc->sc_bscount = 0; 519 #endif 520 521 pmf_device_deregister(self); 522 523 wd_sysctl_detach(sc); 524 525 /* Unhook the entropy source. */ 526 rnd_detach_source(&sc->rnd_source); 527 528 mutex_destroy(&sc->sc_lock); 529 530 sc->drvp->drive_type = ATA_DRIVET_NONE; /* no drive any more here */ 531 sc->drvp->drive_flags = 0; 532 533 return (0); 534 } 535 536 /* 537 * Read/write routine for a buffer. Validates the arguments and schedules the 538 * transfer. Does not wait for the transfer to complete. 539 */ 540 void 541 wdstrategy(struct buf *bp) 542 { 543 struct wd_softc *wd = 544 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 545 struct disklabel *lp = wd->sc_dk.dk_label; 546 daddr_t blkno; 547 548 ATADEBUG_PRINT(("wdstrategy (%s)\n", device_xname(wd->sc_dev)), 549 DEBUG_XFERS); 550 551 /* Valid request? */ 552 if (bp->b_blkno < 0 || 553 (bp->b_bcount % lp->d_secsize) != 0 || 554 (bp->b_bcount / lp->d_secsize) >= (1 << NBBY)) { 555 bp->b_error = EINVAL; 556 goto done; 557 } 558 559 /* If device invalidated (e.g. media change, door open, 560 * device detachment), then error. 561 */ 562 if ((wd->sc_flags & WDF_LOADED) == 0 || 563 !device_is_enabled(wd->sc_dev)) { 564 bp->b_error = EIO; 565 goto done; 566 } 567 568 /* If it's a null transfer, return immediately. */ 569 if (bp->b_bcount == 0) 570 goto done; 571 572 /* 573 * Do bounds checking, adjust transfer. if error, process. 574 * If end of partition, just return. 575 */ 576 if (WDPART(bp->b_dev) == RAW_PART) { 577 if (bounds_check_with_mediasize(bp, DEV_BSIZE, 578 wd->sc_capacity512) <= 0) 579 goto done; 580 } else { 581 if (bounds_check_with_label(&wd->sc_dk, bp, 582 (wd->sc_flags & (WDF_WLABEL|WDF_LABELLING)) != 0) <= 0) 583 goto done; 584 } 585 586 /* 587 * Now convert the block number to absolute and put it in 588 * terms of the device's logical block size. 589 */ 590 if (lp->d_secsize >= DEV_BSIZE) 591 blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); 592 else 593 blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); 594 595 if (WDPART(bp->b_dev) != RAW_PART) 596 blkno += lp->d_partitions[WDPART(bp->b_dev)].p_offset; 597 598 bp->b_rawblkno = blkno; 599 600 #ifdef WD_SOFTBADSECT 601 /* 602 * If the transfer about to be attempted contains only a block that 603 * is known to be bad then return an error for the transfer without 604 * even attempting to start a transfer up under the premis that we 605 * will just end up doing more retries for a transfer that will end 606 * up failing again. 607 */ 608 if (__predict_false(!SLIST_EMPTY(&wd->sc_bslist))) { 609 struct disk_badsectors *dbs; 610 daddr_t maxblk = blkno + (bp->b_bcount / wd->sc_blksize) - 1; 611 612 mutex_enter(&wd->sc_lock); 613 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) 614 if ((dbs->dbs_min <= blkno && blkno <= dbs->dbs_max) || 615 (dbs->dbs_min <= maxblk && maxblk <= dbs->dbs_max)){ 616 bp->b_error = EIO; 617 mutex_exit(&wd->sc_lock); 618 goto done; 619 } 620 mutex_exit(&wd->sc_lock); 621 } 622 #endif 623 624 /* Queue transfer on drive, activate drive and controller if idle. */ 625 mutex_enter(&wd->sc_lock); 626 disk_wait(&wd->sc_dk); 627 bufq_put(wd->sc_q, bp); 628 mutex_exit(&wd->sc_lock); 629 630 /* Try to queue on the current drive only */ 631 wdstart(wd->sc_dev); 632 return; 633 done: 634 /* Toss transfer; we're done early. */ 635 bp->b_resid = bp->b_bcount; 636 biodone(bp); 637 } 638 639 /* 640 * Queue a drive for I/O. 641 */ 642 void 643 wdstart(device_t self) 644 { 645 struct wd_softc *wd = device_private(self); 646 struct buf *bp; 647 struct ata_xfer *xfer; 648 649 ATADEBUG_PRINT(("wdstart %s\n", device_xname(wd->sc_dev)), 650 DEBUG_XFERS); 651 652 if (!device_is_active(wd->sc_dev)) 653 return; 654 655 mutex_enter(&wd->sc_lock); 656 657 /* 658 * Do not queue any transfers until flush is finished, so that 659 * once flush is pending, it will get handled as soon as xfer 660 * is available. 661 */ 662 if (ISSET(wd->sc_flags, WDF_FLUSH_PEND)) 663 goto out; 664 665 while (bufq_peek(wd->sc_q) != NULL) { 666 /* First try to get xfer. Limit to drive openings iff NCQ. */ 667 xfer = ata_get_xfer_ext(wd->drvp->chnl_softc, 0, 668 WD_USE_NCQ(wd) ? WD_MAX_OPENINGS(wd) : 0); 669 if (xfer == NULL) 670 break; 671 672 /* There is got to be a buf for us */ 673 bp = bufq_get(wd->sc_q); 674 KASSERT(bp != NULL); 675 676 xfer->c_retries = 0; 677 wdstart1(wd, bp, xfer); 678 } 679 680 out: 681 mutex_exit(&wd->sc_lock); 682 } 683 684 void 685 wdstart1(struct wd_softc *wd, struct buf *bp, struct ata_xfer *xfer) 686 { 687 /* must be locked on entry */ 688 KASSERT(mutex_owned(&wd->sc_lock)); 689 690 KASSERT(bp == xfer->c_bio.bp || xfer->c_bio.bp == NULL); 691 KASSERT((xfer->c_flags & (C_WAITACT|C_FREE)) == 0); 692 693 /* Reset state, so that retries don't use stale info */ 694 if (__predict_false(xfer->c_retries > 0)) { 695 xfer->c_flags = 0; 696 memset(&xfer->c_bio, 0, sizeof(xfer->c_bio)); 697 } 698 699 xfer->c_bio.blkno = bp->b_rawblkno; 700 xfer->c_bio.bcount = bp->b_bcount; 701 xfer->c_bio.databuf = bp->b_data; 702 xfer->c_bio.blkdone = 0; 703 xfer->c_bio.bp = bp; 704 705 #ifdef WD_CHAOS_MONKEY 706 /* 707 * Override blkno to be over device capacity to trigger error, 708 * but only if it's read, to avoid trashing disk contents should 709 * the command be clipped, or otherwise misinterpreted, by the 710 * driver or controller. 711 */ 712 if (BUF_ISREAD(bp) && xfer->c_retries == 0 && wd->drv_chaos_freq > 0 && 713 (++wd->drv_chaos_cnt % wd->drv_chaos_freq) == 0) { 714 aprint_normal_dev(wd->sc_dev, "%s: chaos xfer %d\n", 715 __func__, xfer->c_slot); 716 xfer->c_bio.blkno = 7777777 + wd->sc_capacity; 717 xfer->c_flags |= C_CHAOS; 718 } 719 #endif 720 721 /* 722 * If we're retrying, retry in single-sector mode. This will give us 723 * the sector number of the problem, and will eventually allow the 724 * transfer to succeed. If FUA is requested, we can't actually 725 * do this, as ATA_SINGLE is usually executed as PIO transfer by drivers 726 * which support it, and that isn't compatible with NCQ/FUA. 727 */ 728 if (xfer->c_retries >= WDIORETRIES_SINGLE && 729 (bp->b_flags & B_MEDIA_FUA) == 0) 730 xfer->c_bio.flags = ATA_SINGLE; 731 else 732 xfer->c_bio.flags = 0; 733 if (wd->sc_flags & WDF_LBA48 && 734 (((xfer->c_bio.blkno + 735 xfer->c_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 736 wd->sc_capacity28) || 737 ((xfer->c_bio.bcount / wd->sc_dk.dk_label->d_secsize) > 128))) 738 xfer->c_bio.flags |= ATA_LBA48; 739 740 /* 741 * If NCQ was negotiated, always use it for the first several attempts. 742 * Since device cancels all outstanding requests on error, downgrade 743 * to non-NCQ on retry, so that the retried transfer would not cause 744 * cascade failure for the other transfers if it fails again. 745 * If FUA was requested, we can't downgrade, as that would violate 746 * the semantics - FUA would not be honored. In that case, continue 747 * retrying with NCQ. 748 */ 749 if (WD_USE_NCQ(wd) && (xfer->c_retries < WDIORETRIES_SINGLE || 750 (bp->b_flags & B_MEDIA_FUA) != 0)) { 751 xfer->c_bio.flags |= ATA_LBA48; 752 xfer->c_flags |= C_NCQ; 753 754 if (WD_USE_NCQ_PRIO(wd) && 755 BIO_GETPRIO(bp) == BPRIO_TIMECRITICAL) 756 xfer->c_bio.flags |= ATA_PRIO_HIGH; 757 } 758 759 if (wd->sc_flags & WDF_LBA) 760 xfer->c_bio.flags |= ATA_LBA; 761 if (bp->b_flags & B_READ) 762 xfer->c_bio.flags |= ATA_READ; 763 if (bp->b_flags & B_MEDIA_FUA) { 764 /* If not using NCQ, the command WRITE DMA FUA EXT is LBA48 */ 765 KASSERT((wd->sc_flags & WDF_LBA48) != 0); 766 if ((xfer->c_flags & C_NCQ) == 0) 767 xfer->c_bio.flags |= ATA_LBA48; 768 769 xfer->c_bio.flags |= ATA_FUA; 770 } 771 772 /* Instrumentation. */ 773 if (xfer->c_retries == 0) 774 disk_busy(&wd->sc_dk); 775 switch (wd->atabus->ata_bio(wd->drvp, xfer)) { 776 case ATACMD_TRY_AGAIN: 777 panic("wdstart1: try again"); 778 break; 779 case ATACMD_QUEUED: 780 case ATACMD_COMPLETE: 781 break; 782 default: 783 panic("wdstart1: bad return code from ata_bio()"); 784 } 785 } 786 787 void 788 wddone(device_t self, struct ata_xfer *xfer) 789 { 790 struct wd_softc *wd = device_private(self); 791 const char *errmsg; 792 int do_perror = 0; 793 struct buf *bp; 794 795 ATADEBUG_PRINT(("wddone %s\n", device_xname(wd->sc_dev)), 796 DEBUG_XFERS); 797 798 if (__predict_false(wddoingadump)) { 799 /* just drop it to the floor */ 800 ata_free_xfer(wd->drvp->chnl_softc, xfer); 801 return; 802 } 803 804 bp = xfer->c_bio.bp; 805 KASSERT(bp != NULL); 806 807 bp->b_resid = xfer->c_bio.bcount; 808 switch (xfer->c_bio.error) { 809 case ERR_DMA: 810 errmsg = "DMA error"; 811 goto retry; 812 case ERR_DF: 813 errmsg = "device fault"; 814 goto retry; 815 case TIMEOUT: 816 errmsg = "device timeout"; 817 goto retry; 818 case REQUEUE: 819 errmsg = "requeue"; 820 goto retry2; 821 case ERR_RESET: 822 errmsg = "channel reset"; 823 goto retry2; 824 case ERROR: 825 /* Don't care about media change bits */ 826 if (xfer->c_bio.r_error != 0 && 827 (xfer->c_bio.r_error & ~(WDCE_MC | WDCE_MCR)) == 0) 828 goto noerror; 829 errmsg = "error"; 830 do_perror = 1; 831 retry: /* Just reset and retry. Can we do more ? */ 832 if ((xfer->c_flags & C_RECOVERED) == 0) 833 (*wd->atabus->ata_reset_drive)(wd->drvp, AT_POLL, NULL); 834 retry2: 835 mutex_enter(&wd->sc_lock); 836 837 diskerr(bp, "wd", errmsg, LOG_PRINTF, 838 xfer->c_bio.blkdone, wd->sc_dk.dk_label); 839 if (xfer->c_retries < WDIORETRIES) 840 printf(", slot %d, retry %d", xfer->c_slot, 841 xfer->c_retries + 1); 842 printf("\n"); 843 if (do_perror) 844 wdperror(wd, xfer); 845 846 if (xfer->c_retries < WDIORETRIES) { 847 xfer->c_retries++; 848 849 /* Rerun ASAP if just requeued */ 850 callout_reset(&xfer->c_retry_callout, 851 (xfer->c_bio.error == REQUEUE) ? 1 : RECOVERYTIME, 852 wdbiorestart, xfer); 853 854 mutex_exit(&wd->sc_lock); 855 return; 856 } 857 858 mutex_exit(&wd->sc_lock); 859 860 #ifdef WD_SOFTBADSECT 861 /* 862 * Not all errors indicate a failed block but those that do, 863 * put the block on the bad-block list for the device. Only 864 * do this for reads because the drive should do it for writes, 865 * itself, according to Manuel. 866 */ 867 if ((bp->b_flags & B_READ) && 868 ((wd->drvp->ata_vers >= 4 && xfer->c_bio.r_error & 64) || 869 (wd->drvp->ata_vers < 4 && xfer->c_bio.r_error & 192))) { 870 struct disk_badsectors *dbs; 871 872 dbs = malloc(sizeof *dbs, M_TEMP, M_NOWAIT); 873 if (dbs == NULL) { 874 aprint_error_dev(wd->sc_dev, 875 "failed to add bad block to list\n"); 876 goto out; 877 } 878 879 dbs->dbs_min = bp->b_rawblkno; 880 dbs->dbs_max = dbs->dbs_min + 881 (bp->b_bcount /wd->sc_blksize) - 1; 882 microtime(&dbs->dbs_failedat); 883 884 mutex_enter(&wd->sc_lock); 885 SLIST_INSERT_HEAD(&wd->sc_bslist, dbs, dbs_next); 886 wd->sc_bscount++; 887 mutex_exit(&wd->sc_lock); 888 } 889 out: 890 #endif 891 bp->b_error = EIO; 892 break; 893 case NOERROR: 894 noerror: if ((xfer->c_bio.flags & ATA_CORR) || xfer->c_retries > 0) 895 aprint_error_dev(wd->sc_dev, 896 "soft error (corrected) slot %d\n", xfer->c_slot); 897 #ifdef WD_CHAOS_MONKEY 898 KASSERT((xfer->c_flags & C_CHAOS) == 0); 899 #endif 900 break; 901 case ERR_NODEV: 902 bp->b_error = EIO; 903 break; 904 } 905 if (__predict_false(bp->b_error != 0) && bp->b_resid == 0) { 906 /* 907 * the disk or controller sometimes report a complete 908 * xfer, when there has been an error. This is wrong, 909 * assume nothing got transfered in this case 910 */ 911 bp->b_resid = bp->b_bcount; 912 } 913 disk_unbusy(&wd->sc_dk, (bp->b_bcount - bp->b_resid), 914 (bp->b_flags & B_READ)); 915 rnd_add_uint32(&wd->rnd_source, bp->b_blkno); 916 ata_free_xfer(wd->drvp->chnl_softc, xfer); 917 biodone(bp); 918 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 919 } 920 921 static void 922 wdbiorestart(void *v) 923 { 924 struct ata_xfer *xfer = v; 925 struct buf *bp = xfer->c_bio.bp; 926 struct wd_softc *wd = device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 927 928 ATADEBUG_PRINT(("wdrestart %s\n", device_xname(wd->sc_dev)), 929 DEBUG_XFERS); 930 931 mutex_enter(&wd->sc_lock); 932 wdstart1(wd, bp, xfer); 933 mutex_exit(&wd->sc_lock); 934 } 935 936 static void 937 wdminphys(struct buf *bp) 938 { 939 const struct wd_softc * const wd = 940 device_lookup_private(&wd_cd, WDUNIT(bp->b_dev)); 941 uint32_t maxsectors; 942 943 /* 944 * The limit is actually 65536 for LBA48 and 256 for non-LBA48, 945 * but that requires to set the count for the ATA command 946 * to 0, which is somewhat error prone, so better stay safe. 947 */ 948 if (wd->sc_flags & WDF_LBA48) 949 maxsectors = 65535; 950 else 951 maxsectors = 128; 952 953 if (bp->b_bcount > (wd->sc_blksize * maxsectors)) 954 bp->b_bcount = (wd->sc_blksize * maxsectors); 955 956 minphys(bp); 957 } 958 959 int 960 wdread(dev_t dev, struct uio *uio, int flags) 961 { 962 963 ATADEBUG_PRINT(("wdread\n"), DEBUG_XFERS); 964 return (physio(wdstrategy, NULL, dev, B_READ, wdminphys, uio)); 965 } 966 967 int 968 wdwrite(dev_t dev, struct uio *uio, int flags) 969 { 970 971 ATADEBUG_PRINT(("wdwrite\n"), DEBUG_XFERS); 972 return (physio(wdstrategy, NULL, dev, B_WRITE, wdminphys, uio)); 973 } 974 975 int 976 wdopen(dev_t dev, int flag, int fmt, struct lwp *l) 977 { 978 struct wd_softc *wd; 979 int part, error; 980 981 ATADEBUG_PRINT(("wdopen\n"), DEBUG_FUNCS); 982 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 983 if (wd == NULL) 984 return (ENXIO); 985 986 if (! device_is_active(wd->sc_dev)) 987 return (ENODEV); 988 989 if (wd->sc_capacity == 0) 990 return (ENODEV); 991 992 part = WDPART(dev); 993 994 mutex_enter(&wd->sc_dk.dk_openlock); 995 996 /* 997 * If there are wedges, and this is not RAW_PART, then we 998 * need to fail. 999 */ 1000 if (wd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { 1001 error = EBUSY; 1002 goto bad1; 1003 } 1004 1005 /* 1006 * If this is the first open of this device, add a reference 1007 * to the adapter. 1008 */ 1009 if (wd->sc_dk.dk_openmask == 0 && 1010 (error = wd->atabus->ata_addref(wd->drvp)) != 0) 1011 goto bad1; 1012 1013 if (wd->sc_dk.dk_openmask != 0) { 1014 /* 1015 * If any partition is open, but the disk has been invalidated, 1016 * disallow further opens. 1017 */ 1018 if ((wd->sc_flags & WDF_LOADED) == 0) { 1019 error = EIO; 1020 goto bad2; 1021 } 1022 } else { 1023 if ((wd->sc_flags & WDF_LOADED) == 0) { 1024 1025 /* Load the physical device parameters. */ 1026 if (wd_get_params(wd, AT_WAIT, &wd->sc_params) != 0) { 1027 aprint_error_dev(wd->sc_dev, 1028 "IDENTIFY failed\n"); 1029 error = EIO; 1030 goto bad2; 1031 } 1032 wd->sc_flags |= WDF_LOADED; 1033 /* Load the partition info if not already loaded. */ 1034 wdgetdisklabel(wd); 1035 } 1036 } 1037 1038 /* Check that the partition exists. */ 1039 if (part != RAW_PART && 1040 (part >= wd->sc_dk.dk_label->d_npartitions || 1041 wd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { 1042 error = ENXIO; 1043 goto bad2; 1044 } 1045 1046 /* Insure only one open at a time. */ 1047 switch (fmt) { 1048 case S_IFCHR: 1049 wd->sc_dk.dk_copenmask |= (1 << part); 1050 break; 1051 case S_IFBLK: 1052 wd->sc_dk.dk_bopenmask |= (1 << part); 1053 break; 1054 } 1055 wd->sc_dk.dk_openmask = 1056 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1057 1058 mutex_exit(&wd->sc_dk.dk_openlock); 1059 return 0; 1060 1061 bad2: 1062 if (wd->sc_dk.dk_openmask == 0) 1063 wd->atabus->ata_delref(wd->drvp); 1064 bad1: 1065 mutex_exit(&wd->sc_dk.dk_openlock); 1066 return error; 1067 } 1068 1069 /* 1070 * Caller must hold wd->sc_dk.dk_openlock. 1071 */ 1072 static int 1073 wdlastclose(device_t self) 1074 { 1075 struct wd_softc *wd = device_private(self); 1076 1077 wd_flushcache(wd, AT_WAIT, false); 1078 1079 if (! (wd->sc_flags & WDF_KLABEL)) 1080 wd->sc_flags &= ~WDF_LOADED; 1081 1082 wd->atabus->ata_delref(wd->drvp); 1083 1084 return 0; 1085 } 1086 1087 int 1088 wdclose(dev_t dev, int flag, int fmt, struct lwp *l) 1089 { 1090 struct wd_softc *wd = 1091 device_lookup_private(&wd_cd, WDUNIT(dev)); 1092 int part = WDPART(dev); 1093 1094 ATADEBUG_PRINT(("wdclose\n"), DEBUG_FUNCS); 1095 1096 mutex_enter(&wd->sc_dk.dk_openlock); 1097 1098 switch (fmt) { 1099 case S_IFCHR: 1100 wd->sc_dk.dk_copenmask &= ~(1 << part); 1101 break; 1102 case S_IFBLK: 1103 wd->sc_dk.dk_bopenmask &= ~(1 << part); 1104 break; 1105 } 1106 wd->sc_dk.dk_openmask = 1107 wd->sc_dk.dk_copenmask | wd->sc_dk.dk_bopenmask; 1108 1109 if (wd->sc_dk.dk_openmask == 0) 1110 wdlastclose(wd->sc_dev); 1111 1112 mutex_exit(&wd->sc_dk.dk_openlock); 1113 return 0; 1114 } 1115 1116 void 1117 wdgetdefaultlabel(struct wd_softc *wd, struct disklabel *lp) 1118 { 1119 1120 ATADEBUG_PRINT(("wdgetdefaultlabel\n"), DEBUG_FUNCS); 1121 memset(lp, 0, sizeof(struct disklabel)); 1122 1123 lp->d_secsize = wd->sc_blksize; 1124 lp->d_ntracks = wd->sc_params.atap_heads; 1125 lp->d_nsectors = wd->sc_params.atap_sectors; 1126 lp->d_ncylinders = (wd->sc_flags & WDF_LBA) ? wd->sc_capacity / 1127 (wd->sc_params.atap_heads * wd->sc_params.atap_sectors) : 1128 wd->sc_params.atap_cylinders; 1129 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1130 1131 if (strcmp(wd->sc_params.atap_model, "ST506") == 0) 1132 lp->d_type = DKTYPE_ST506; 1133 else 1134 lp->d_type = DKTYPE_ESDI; 1135 1136 strncpy(lp->d_typename, wd->sc_params.atap_model, 16); 1137 strncpy(lp->d_packname, "fictitious", 16); 1138 if (wd->sc_capacity > UINT32_MAX) 1139 lp->d_secperunit = UINT32_MAX; 1140 else 1141 lp->d_secperunit = wd->sc_capacity; 1142 lp->d_rpm = 3600; 1143 lp->d_interleave = 1; 1144 lp->d_flags = 0; 1145 1146 lp->d_partitions[RAW_PART].p_offset = 0; 1147 lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; 1148 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1149 lp->d_npartitions = RAW_PART + 1; 1150 1151 lp->d_magic = DISKMAGIC; 1152 lp->d_magic2 = DISKMAGIC; 1153 lp->d_checksum = dkcksum(lp); 1154 } 1155 1156 /* 1157 * Fabricate a default disk label, and try to read the correct one. 1158 */ 1159 void 1160 wdgetdisklabel(struct wd_softc *wd) 1161 { 1162 struct disklabel *lp = wd->sc_dk.dk_label; 1163 const char *errstring; 1164 1165 ATADEBUG_PRINT(("wdgetdisklabel\n"), DEBUG_FUNCS); 1166 1167 memset(wd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 1168 1169 wdgetdefaultlabel(wd, lp); 1170 1171 wd->drvp->badsect[0] = -1; 1172 1173 if (wd->drvp->state > RESET) { 1174 mutex_enter(&wd->sc_lock); 1175 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1176 mutex_exit(&wd->sc_lock); 1177 } 1178 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1179 RAW_PART), wdstrategy, lp, 1180 wd->sc_dk.dk_cpulabel); 1181 if (errstring) { 1182 /* 1183 * This probably happened because the drive's default 1184 * geometry doesn't match the DOS geometry. We 1185 * assume the DOS geometry is now in the label and try 1186 * again. XXX This is a kluge. 1187 */ 1188 if (wd->drvp->state > RESET) { 1189 mutex_enter(&wd->sc_lock); 1190 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1191 mutex_exit(&wd->sc_lock); 1192 } 1193 errstring = readdisklabel(MAKEWDDEV(0, device_unit(wd->sc_dev), 1194 RAW_PART), wdstrategy, lp, wd->sc_dk.dk_cpulabel); 1195 } 1196 if (errstring) { 1197 aprint_error_dev(wd->sc_dev, "%s\n", errstring); 1198 return; 1199 } 1200 1201 if (wd->drvp->state > RESET) { 1202 mutex_enter(&wd->sc_lock); 1203 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1204 mutex_exit(&wd->sc_lock); 1205 } 1206 #ifdef HAS_BAD144_HANDLING 1207 if ((lp->d_flags & D_BADSECT) != 0) 1208 bad144intern(wd); 1209 #endif 1210 } 1211 1212 void 1213 wdperror(const struct wd_softc *wd, struct ata_xfer *xfer) 1214 { 1215 static const char *const errstr0_3[] = {"address mark not found", 1216 "track 0 not found", "aborted command", "media change requested", 1217 "id not found", "media changed", "uncorrectable data error", 1218 "bad block detected"}; 1219 static const char *const errstr4_5[] = { 1220 "obsolete (address mark not found)", 1221 "no media/write protected", "aborted command", 1222 "media change requested", "id not found", "media changed", 1223 "uncorrectable data error", "interface CRC error"}; 1224 const char *const *errstr; 1225 int i; 1226 const char *sep = ""; 1227 1228 const char *devname = device_xname(wd->sc_dev); 1229 struct ata_drive_datas *drvp = wd->drvp; 1230 int errno = xfer->c_bio.r_error; 1231 1232 if (drvp->ata_vers >= 4) 1233 errstr = errstr4_5; 1234 else 1235 errstr = errstr0_3; 1236 1237 printf("%s: (", devname); 1238 1239 if (errno == 0) 1240 printf("error not notified"); 1241 1242 for (i = 0; i < 8; i++) { 1243 if (errno & (1 << i)) { 1244 printf("%s%s", sep, errstr[i]); 1245 sep = ", "; 1246 } 1247 } 1248 printf(")\n"); 1249 } 1250 1251 int 1252 wdioctl(dev_t dev, u_long xfer, void *addr, int flag, struct lwp *l) 1253 { 1254 struct wd_softc *wd = 1255 device_lookup_private(&wd_cd, WDUNIT(dev)); 1256 int error; 1257 #ifdef __HAVE_OLD_DISKLABEL 1258 struct disklabel *newlabel = NULL; 1259 #endif 1260 1261 ATADEBUG_PRINT(("wdioctl\n"), DEBUG_FUNCS); 1262 1263 if ((wd->sc_flags & WDF_LOADED) == 0) 1264 return EIO; 1265 1266 error = disk_ioctl(&wd->sc_dk, dev, xfer, addr, flag, l); 1267 if (error != EPASSTHROUGH) 1268 return error; 1269 1270 error = 0; 1271 switch (xfer) { 1272 #ifdef HAS_BAD144_HANDLING 1273 case DIOCSBAD: 1274 if ((flag & FWRITE) == 0) 1275 return EBADF; 1276 wd->sc_dk.dk_cpulabel->bad = *(struct dkbad *)addr; 1277 wd->sc_dk.dk_label->d_flags |= D_BADSECT; 1278 bad144intern(wd); 1279 return 0; 1280 #endif 1281 #ifdef WD_SOFTBADSECT 1282 case DIOCBSLIST : 1283 { 1284 uint32_t count, missing, skip; 1285 struct disk_badsecinfo dbsi; 1286 struct disk_badsectors *dbs; 1287 size_t available; 1288 uint8_t *laddr; 1289 1290 dbsi = *(struct disk_badsecinfo *)addr; 1291 missing = wd->sc_bscount; 1292 count = 0; 1293 available = dbsi.dbsi_bufsize; 1294 skip = dbsi.dbsi_skip; 1295 laddr = (uint8_t *)dbsi.dbsi_buffer; 1296 1297 /* 1298 * We start this loop with the expectation that all of the 1299 * entries will be missed and decrement this counter each 1300 * time we either skip over one (already copied out) or 1301 * we actually copy it back to user space. The structs 1302 * holding the bad sector information are copied directly 1303 * back to user space whilst the summary is returned via 1304 * the struct passed in via the ioctl. 1305 */ 1306 SLIST_FOREACH(dbs, &wd->sc_bslist, dbs_next) { 1307 if (skip > 0) { 1308 missing--; 1309 skip--; 1310 continue; 1311 } 1312 if (available < sizeof(*dbs)) 1313 break; 1314 available -= sizeof(*dbs); 1315 copyout(dbs, laddr, sizeof(*dbs)); 1316 laddr += sizeof(*dbs); 1317 missing--; 1318 count++; 1319 } 1320 dbsi.dbsi_left = missing; 1321 dbsi.dbsi_copied = count; 1322 *(struct disk_badsecinfo *)addr = dbsi; 1323 return 0; 1324 } 1325 1326 case DIOCBSFLUSH : 1327 /* Clean out the bad sector list */ 1328 while (!SLIST_EMPTY(&wd->sc_bslist)) { 1329 void *head = SLIST_FIRST(&wd->sc_bslist); 1330 SLIST_REMOVE_HEAD(&wd->sc_bslist, dbs_next); 1331 free(head, M_TEMP); 1332 } 1333 wd->sc_bscount = 0; 1334 return 0; 1335 #endif 1336 1337 case DIOCWDINFO: 1338 case DIOCSDINFO: 1339 #ifdef __HAVE_OLD_DISKLABEL 1340 case ODIOCWDINFO: 1341 case ODIOCSDINFO: 1342 #endif 1343 { 1344 struct disklabel *lp; 1345 1346 if ((flag & FWRITE) == 0) 1347 return EBADF; 1348 1349 #ifdef __HAVE_OLD_DISKLABEL 1350 if (xfer == ODIOCSDINFO || xfer == ODIOCWDINFO) { 1351 newlabel = malloc(sizeof *newlabel, M_TEMP, 1352 M_WAITOK | M_ZERO); 1353 if (newlabel == NULL) 1354 return EIO; 1355 memcpy(newlabel, addr, sizeof (struct olddisklabel)); 1356 lp = newlabel; 1357 } else 1358 #endif 1359 lp = (struct disklabel *)addr; 1360 1361 mutex_enter(&wd->sc_dk.dk_openlock); 1362 wd->sc_flags |= WDF_LABELLING; 1363 1364 error = setdisklabel(wd->sc_dk.dk_label, 1365 lp, /*wd->sc_dk.dk_openmask : */0, 1366 wd->sc_dk.dk_cpulabel); 1367 if (error == 0) { 1368 if (wd->drvp->state > RESET) { 1369 mutex_enter(&wd->sc_lock); 1370 wd->drvp->drive_flags |= ATA_DRIVE_RESET; 1371 mutex_exit(&wd->sc_lock); 1372 } 1373 if (xfer == DIOCWDINFO 1374 #ifdef __HAVE_OLD_DISKLABEL 1375 || xfer == ODIOCWDINFO 1376 #endif 1377 ) 1378 error = writedisklabel(WDLABELDEV(dev), 1379 wdstrategy, wd->sc_dk.dk_label, 1380 wd->sc_dk.dk_cpulabel); 1381 } 1382 1383 wd->sc_flags &= ~WDF_LABELLING; 1384 mutex_exit(&wd->sc_dk.dk_openlock); 1385 #ifdef __HAVE_OLD_DISKLABEL 1386 if (newlabel != NULL) 1387 free(newlabel, M_TEMP); 1388 #endif 1389 return error; 1390 } 1391 1392 case DIOCKLABEL: 1393 if (*(int *)addr) 1394 wd->sc_flags |= WDF_KLABEL; 1395 else 1396 wd->sc_flags &= ~WDF_KLABEL; 1397 return 0; 1398 1399 case DIOCWLABEL: 1400 if ((flag & FWRITE) == 0) 1401 return EBADF; 1402 if (*(int *)addr) 1403 wd->sc_flags |= WDF_WLABEL; 1404 else 1405 wd->sc_flags &= ~WDF_WLABEL; 1406 return 0; 1407 1408 case DIOCGDEFLABEL: 1409 wdgetdefaultlabel(wd, (struct disklabel *)addr); 1410 return 0; 1411 #ifdef __HAVE_OLD_DISKLABEL 1412 case ODIOCGDEFLABEL: 1413 newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); 1414 if (newlabel == NULL) 1415 return EIO; 1416 wdgetdefaultlabel(wd, newlabel); 1417 if (newlabel->d_npartitions <= OLDMAXPARTITIONS) 1418 memcpy(addr, &newlabel, sizeof (struct olddisklabel)); 1419 else 1420 error = ENOTTY; 1421 free(newlabel, M_TEMP); 1422 return error; 1423 #endif 1424 1425 #ifdef notyet 1426 case DIOCWFORMAT: 1427 if ((flag & FWRITE) == 0) 1428 return EBADF; 1429 { 1430 register struct format_op *fop; 1431 struct iovec aiov; 1432 struct uio auio; 1433 1434 fop = (struct format_op *)addr; 1435 aiov.iov_base = fop->df_buf; 1436 aiov.iov_len = fop->df_count; 1437 auio.uio_iov = &aiov; 1438 auio.uio_iovcnt = 1; 1439 auio.uio_resid = fop->df_count; 1440 auio.uio_offset = 1441 fop->df_startblk * wd->sc_dk.dk_label->d_secsize; 1442 auio.uio_vmspace = l->l_proc->p_vmspace; 1443 error = physio(wdformat, NULL, dev, B_WRITE, wdminphys, 1444 &auio); 1445 fop->df_count -= auio.uio_resid; 1446 fop->df_reg[0] = wdc->sc_status; 1447 fop->df_reg[1] = wdc->sc_error; 1448 return error; 1449 } 1450 #endif 1451 case DIOCGCACHE: 1452 return wd_getcache(wd, (int *)addr); 1453 1454 case DIOCSCACHE: 1455 return wd_setcache(wd, *(int *)addr); 1456 1457 case DIOCCACHESYNC: 1458 return wd_flushcache(wd, AT_WAIT, true); 1459 1460 case ATAIOCCOMMAND: 1461 /* 1462 * Make sure this command is (relatively) safe first 1463 */ 1464 if ((((atareq_t *) addr)->flags & ATACMD_READ) == 0 && 1465 (flag & FWRITE) == 0) 1466 return (EBADF); 1467 { 1468 struct wd_ioctl *wi; 1469 atareq_t *atareq = (atareq_t *) addr; 1470 int error1; 1471 1472 wi = wi_get(wd); 1473 wi->wi_atareq = *atareq; 1474 1475 if (atareq->datalen && atareq->flags & 1476 (ATACMD_READ | ATACMD_WRITE)) { 1477 void *tbuf; 1478 if (atareq->datalen < DEV_BSIZE 1479 && atareq->command == WDCC_IDENTIFY) { 1480 tbuf = malloc(DEV_BSIZE, M_TEMP, M_WAITOK); 1481 wi->wi_iov.iov_base = tbuf; 1482 wi->wi_iov.iov_len = DEV_BSIZE; 1483 UIO_SETUP_SYSSPACE(&wi->wi_uio); 1484 } else { 1485 tbuf = NULL; 1486 wi->wi_iov.iov_base = atareq->databuf; 1487 wi->wi_iov.iov_len = atareq->datalen; 1488 wi->wi_uio.uio_vmspace = l->l_proc->p_vmspace; 1489 } 1490 wi->wi_uio.uio_iov = &wi->wi_iov; 1491 wi->wi_uio.uio_iovcnt = 1; 1492 wi->wi_uio.uio_resid = atareq->datalen; 1493 wi->wi_uio.uio_offset = 0; 1494 wi->wi_uio.uio_rw = 1495 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE; 1496 error1 = physio(wdioctlstrategy, &wi->wi_bp, dev, 1497 (atareq->flags & ATACMD_READ) ? B_READ : B_WRITE, 1498 wdminphys, &wi->wi_uio); 1499 if (tbuf != NULL && error1 == 0) { 1500 error1 = copyout(tbuf, atareq->databuf, 1501 atareq->datalen); 1502 free(tbuf, M_TEMP); 1503 } 1504 } else { 1505 /* No need to call physio if we don't have any 1506 user data */ 1507 wi->wi_bp.b_flags = 0; 1508 wi->wi_bp.b_data = 0; 1509 wi->wi_bp.b_bcount = 0; 1510 wi->wi_bp.b_dev = dev; 1511 wi->wi_bp.b_proc = l->l_proc; 1512 wdioctlstrategy(&wi->wi_bp); 1513 error1 = wi->wi_bp.b_error; 1514 } 1515 *atareq = wi->wi_atareq; 1516 wi_free(wi); 1517 return(error1); 1518 } 1519 1520 case DIOCGSTRATEGY: 1521 { 1522 struct disk_strategy *dks = (void *)addr; 1523 1524 mutex_enter(&wd->sc_lock); 1525 strlcpy(dks->dks_name, bufq_getstrategyname(wd->sc_q), 1526 sizeof(dks->dks_name)); 1527 mutex_exit(&wd->sc_lock); 1528 dks->dks_paramlen = 0; 1529 1530 return 0; 1531 } 1532 1533 case DIOCSSTRATEGY: 1534 { 1535 struct disk_strategy *dks = (void *)addr; 1536 struct bufq_state *new; 1537 struct bufq_state *old; 1538 1539 if ((flag & FWRITE) == 0) { 1540 return EBADF; 1541 } 1542 if (dks->dks_param != NULL) { 1543 return EINVAL; 1544 } 1545 dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ 1546 error = bufq_alloc(&new, dks->dks_name, 1547 BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); 1548 if (error) { 1549 return error; 1550 } 1551 mutex_enter(&wd->sc_lock); 1552 old = wd->sc_q; 1553 bufq_move(new, old); 1554 wd->sc_q = new; 1555 mutex_exit(&wd->sc_lock); 1556 bufq_free(old); 1557 1558 return 0; 1559 } 1560 1561 default: 1562 return ENOTTY; 1563 } 1564 1565 #ifdef DIAGNOSTIC 1566 panic("wdioctl: impossible"); 1567 #endif 1568 } 1569 1570 static int 1571 wddiscard(dev_t dev, off_t pos, off_t len) 1572 { 1573 struct wd_softc *wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1574 daddr_t bno; 1575 long size, done; 1576 long maxatonce, amount; 1577 int result; 1578 1579 if (!(wd->sc_params.atap_ata_major & WDC_VER_ATA7) 1580 || !(wd->sc_params.support_dsm & ATA_SUPPORT_DSM_TRIM)) { 1581 /* not supported; ignore request */ 1582 ATADEBUG_PRINT(("wddiscard (unsupported)\n"), DEBUG_FUNCS); 1583 return 0; 1584 } 1585 maxatonce = 0xffff; /*wd->sc_params.max_dsm_blocks*/ 1586 1587 ATADEBUG_PRINT(("wddiscard\n"), DEBUG_FUNCS); 1588 1589 if ((wd->sc_flags & WDF_LOADED) == 0) 1590 return EIO; 1591 1592 /* round the start up and the end down */ 1593 bno = (pos + wd->sc_blksize - 1) / wd->sc_blksize; 1594 size = ((pos + len) / wd->sc_blksize) - bno; 1595 1596 done = 0; 1597 while (done < size) { 1598 amount = size - done; 1599 if (amount > maxatonce) { 1600 amount = maxatonce; 1601 } 1602 result = wd_trim(wd, WDPART(dev), bno + done, amount); 1603 if (result) { 1604 return result; 1605 } 1606 done += amount; 1607 } 1608 return 0; 1609 } 1610 1611 #ifdef B_FORMAT 1612 int 1613 wdformat(struct buf *bp) 1614 { 1615 1616 bp->b_flags |= B_FORMAT; 1617 return wdstrategy(bp); 1618 } 1619 #endif 1620 1621 int 1622 wdsize(dev_t dev) 1623 { 1624 struct wd_softc *wd; 1625 int part, omask; 1626 int size; 1627 1628 ATADEBUG_PRINT(("wdsize\n"), DEBUG_FUNCS); 1629 1630 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1631 if (wd == NULL) 1632 return (-1); 1633 1634 part = WDPART(dev); 1635 omask = wd->sc_dk.dk_openmask & (1 << part); 1636 1637 if (omask == 0 && wdopen(dev, 0, S_IFBLK, NULL) != 0) 1638 return (-1); 1639 if (wd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) 1640 size = -1; 1641 else 1642 size = wd->sc_dk.dk_label->d_partitions[part].p_size * 1643 (wd->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1644 if (omask == 0 && wdclose(dev, 0, S_IFBLK, NULL) != 0) 1645 return (-1); 1646 return (size); 1647 } 1648 1649 /* 1650 * Dump core after a system crash. 1651 */ 1652 int 1653 wddump(dev_t dev, daddr_t blkno, void *va, size_t size) 1654 { 1655 struct wd_softc *wd; /* disk unit to do the I/O */ 1656 struct disklabel *lp; /* disk's disklabel */ 1657 int part, err; 1658 int nblks; /* total number of sectors left to write */ 1659 struct ata_xfer *xfer; 1660 1661 /* Check if recursive dump; if so, punt. */ 1662 if (wddoingadump) 1663 return EFAULT; 1664 wddoingadump = 1; 1665 1666 wd = device_lookup_private(&wd_cd, WDUNIT(dev)); 1667 if (wd == NULL) 1668 return (ENXIO); 1669 1670 part = WDPART(dev); 1671 1672 /* Convert to disk sectors. Request must be a multiple of size. */ 1673 lp = wd->sc_dk.dk_label; 1674 if ((size % lp->d_secsize) != 0) 1675 return EFAULT; 1676 nblks = size / lp->d_secsize; 1677 blkno = blkno / (lp->d_secsize / DEV_BSIZE); 1678 1679 /* Check transfer bounds against partition size. */ 1680 if ((blkno < 0) || ((blkno + nblks) > lp->d_partitions[part].p_size)) 1681 return EINVAL; 1682 1683 /* Offset block number to start of partition. */ 1684 blkno += lp->d_partitions[part].p_offset; 1685 1686 /* Recalibrate, if first dump transfer. */ 1687 if (wddumprecalibrated == 0) { 1688 wddumprecalibrated = 1; 1689 (*wd->atabus->ata_reset_drive)(wd->drvp, 1690 AT_POLL | AT_RST_EMERG, NULL); 1691 wd->drvp->state = RESET; 1692 } 1693 1694 xfer = ata_get_xfer_ext(wd->drvp->chnl_softc, 0, 0); 1695 if (xfer == NULL) { 1696 printf("%s: no xfer\n", __func__); 1697 return EAGAIN; 1698 } 1699 1700 xfer->c_bio.blkno = blkno; 1701 xfer->c_bio.flags = ATA_POLL; 1702 if (wd->sc_flags & WDF_LBA48 && 1703 (xfer->c_bio.blkno + nblks) > wd->sc_capacity28) 1704 xfer->c_bio.flags |= ATA_LBA48; 1705 if (wd->sc_flags & WDF_LBA) 1706 xfer->c_bio.flags |= ATA_LBA; 1707 xfer->c_bio.bcount = nblks * lp->d_secsize; 1708 xfer->c_bio.databuf = va; 1709 #ifndef WD_DUMP_NOT_TRUSTED 1710 switch (err = wd->atabus->ata_bio(wd->drvp, xfer)) { 1711 case ATACMD_TRY_AGAIN: 1712 panic("wddump: try again"); 1713 break; 1714 case ATACMD_QUEUED: 1715 panic("wddump: polled command has been queued"); 1716 break; 1717 case ATACMD_COMPLETE: 1718 break; 1719 default: 1720 panic("wddump: unknown atacmd code %d", err); 1721 } 1722 switch(err = xfer->c_bio.error) { 1723 case TIMEOUT: 1724 printf("wddump: device timed out"); 1725 err = EIO; 1726 break; 1727 case ERR_DF: 1728 printf("wddump: drive fault"); 1729 err = EIO; 1730 break; 1731 case ERR_DMA: 1732 printf("wddump: DMA error"); 1733 err = EIO; 1734 break; 1735 case ERROR: 1736 printf("wddump: "); 1737 wdperror(wd, xfer); 1738 err = EIO; 1739 break; 1740 case NOERROR: 1741 err = 0; 1742 break; 1743 default: 1744 panic("wddump: unknown error type %d", err); 1745 } 1746 1747 if (err != 0) { 1748 printf("\n"); 1749 return err; 1750 } 1751 #else /* WD_DUMP_NOT_TRUSTED */ 1752 /* Let's just talk about this first... */ 1753 printf("wd%d: dump addr 0x%x, cylin %d, head %d, sector %d\n", 1754 unit, va, cylin, head, sector); 1755 delay(500 * 1000); /* half a second */ 1756 #endif 1757 1758 wddoingadump = 0; 1759 return 0; 1760 } 1761 1762 #ifdef HAS_BAD144_HANDLING 1763 /* 1764 * Internalize the bad sector table. 1765 */ 1766 void 1767 bad144intern(struct wd_softc *wd) 1768 { 1769 struct dkbad *bt = &wd->sc_dk.dk_cpulabel->bad; 1770 struct disklabel *lp = wd->sc_dk.dk_label; 1771 int i = 0; 1772 1773 ATADEBUG_PRINT(("bad144intern\n"), DEBUG_XFERS); 1774 1775 for (; i < NBT_BAD; i++) { 1776 if (bt->bt_bad[i].bt_cyl == 0xffff) 1777 break; 1778 wd->drvp->badsect[i] = 1779 bt->bt_bad[i].bt_cyl * lp->d_secpercyl + 1780 (bt->bt_bad[i].bt_trksec >> 8) * lp->d_nsectors + 1781 (bt->bt_bad[i].bt_trksec & 0xff); 1782 } 1783 for (; i < NBT_BAD+1; i++) 1784 wd->drvp->badsect[i] = -1; 1785 } 1786 #endif 1787 1788 static void 1789 wd_params_to_properties(struct wd_softc *wd) 1790 { 1791 struct disk_geom *dg = &wd->sc_dk.dk_geom; 1792 1793 memset(dg, 0, sizeof(*dg)); 1794 1795 dg->dg_secperunit = wd->sc_capacity; 1796 dg->dg_secsize = wd->sc_blksize; 1797 dg->dg_nsectors = wd->sc_params.atap_sectors; 1798 dg->dg_ntracks = wd->sc_params.atap_heads; 1799 if ((wd->sc_flags & WDF_LBA) == 0) 1800 dg->dg_ncylinders = wd->sc_params.atap_cylinders; 1801 1802 /* XXX Should have a case for ATA here, too. */ 1803 const char *cp = strcmp(wd->sc_params.atap_model, "ST506") ? 1804 "ST506" : "ESDI"; 1805 1806 disk_set_info(wd->sc_dev, &wd->sc_dk, cp); 1807 } 1808 1809 int 1810 wd_get_params(struct wd_softc *wd, uint8_t flags, struct ataparams *params) 1811 { 1812 1813 switch (wd->atabus->ata_get_params(wd->drvp, flags, params)) { 1814 case CMD_AGAIN: 1815 return 1; 1816 case CMD_ERR: 1817 if (wd->drvp->drive_type != ATA_DRIVET_OLD) 1818 return 1; 1819 /* 1820 * We `know' there's a drive here; just assume it's old. 1821 * This geometry is only used to read the MBR and print a 1822 * (false) attach message. 1823 */ 1824 strncpy(params->atap_model, "ST506", 1825 sizeof params->atap_model); 1826 params->atap_config = ATA_CFG_FIXED; 1827 params->atap_cylinders = 1024; 1828 params->atap_heads = 8; 1829 params->atap_sectors = 17; 1830 params->atap_multi = 1; 1831 params->atap_capabilities1 = params->atap_capabilities2 = 0; 1832 wd->drvp->ata_vers = -1; /* Mark it as pre-ATA */ 1833 /* FALLTHROUGH */ 1834 case CMD_OK: 1835 return 0; 1836 default: 1837 panic("wd_get_params: bad return code from ata_get_params"); 1838 /* NOTREACHED */ 1839 } 1840 } 1841 1842 int 1843 wd_getcache(struct wd_softc *wd, int *bitsp) 1844 { 1845 struct ataparams params; 1846 1847 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1848 return EIO; 1849 if (params.atap_cmd_set1 == 0x0000 || 1850 params.atap_cmd_set1 == 0xffff || 1851 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) { 1852 *bitsp = 0; 1853 return 0; 1854 } 1855 *bitsp = DKCACHE_WCHANGE | DKCACHE_READ; 1856 if (params.atap_cmd1_en & WDC_CMD1_CACHE) 1857 *bitsp |= DKCACHE_WRITE; 1858 1859 if (WD_USE_NCQ(wd) || (wd->drvp->drive_flags & ATA_DRIVE_WFUA)) 1860 *bitsp |= DKCACHE_FUA; 1861 1862 return 0; 1863 } 1864 1865 const char at_errbits[] = "\20\10ERROR\11TIMEOU\12DF"; 1866 1867 int 1868 wd_setcache(struct wd_softc *wd, int bits) 1869 { 1870 struct ataparams params; 1871 struct ata_xfer *xfer; 1872 int error; 1873 1874 if (wd_get_params(wd, AT_WAIT, ¶ms) != 0) 1875 return EIO; 1876 1877 if (params.atap_cmd_set1 == 0x0000 || 1878 params.atap_cmd_set1 == 0xffff || 1879 (params.atap_cmd_set1 & WDC_CMD1_CACHE) == 0) 1880 return EOPNOTSUPP; 1881 1882 if ((bits & DKCACHE_READ) == 0 || 1883 (bits & DKCACHE_SAVE) != 0) 1884 return EOPNOTSUPP; 1885 1886 xfer = ata_get_xfer(wd->drvp->chnl_softc); 1887 if (xfer == NULL) 1888 return EINTR; 1889 1890 xfer->c_ata_c.r_command = SET_FEATURES; 1891 xfer->c_ata_c.r_st_bmask = 0; 1892 xfer->c_ata_c.r_st_pmask = 0; 1893 xfer->c_ata_c.timeout = 30000; /* 30s timeout */ 1894 xfer->c_ata_c.flags = AT_WAIT; 1895 if (bits & DKCACHE_WRITE) 1896 xfer->c_ata_c.r_features = WDSF_WRITE_CACHE_EN; 1897 else 1898 xfer->c_ata_c.r_features = WDSF_WRITE_CACHE_DS; 1899 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 1900 aprint_error_dev(wd->sc_dev, 1901 "wd_setcache command not complete\n"); 1902 error = EIO; 1903 goto out; 1904 } 1905 1906 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1907 char sbuf[sizeof(at_errbits) + 64]; 1908 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 1909 aprint_error_dev(wd->sc_dev, "wd_setcache: status=%s\n", sbuf); 1910 error = EIO; 1911 goto out; 1912 } 1913 1914 error = 0; 1915 1916 out: 1917 ata_free_xfer(wd->drvp->chnl_softc, xfer); 1918 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 1919 return error; 1920 } 1921 1922 static int 1923 wd_standby(struct wd_softc *wd, int flags) 1924 { 1925 struct ata_xfer *xfer; 1926 int error; 1927 1928 xfer = ata_get_xfer(wd->drvp->chnl_softc); 1929 if (xfer == NULL) 1930 return EINTR; 1931 1932 xfer->c_ata_c.r_command = WDCC_STANDBY_IMMED; 1933 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 1934 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 1935 xfer->c_ata_c.flags = flags; 1936 xfer->c_ata_c.timeout = 30000; /* 30s timeout */ 1937 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 1938 aprint_error_dev(wd->sc_dev, 1939 "standby immediate command didn't complete\n"); 1940 error = EIO; 1941 goto out; 1942 } 1943 if (xfer->c_ata_c.flags & AT_ERROR) { 1944 if (xfer->c_ata_c.r_error == WDCE_ABRT) { 1945 /* command not supported */ 1946 error = ENODEV; 1947 goto out; 1948 } 1949 } 1950 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 1951 char sbuf[sizeof(at_errbits) + 64]; 1952 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 1953 aprint_error_dev(wd->sc_dev, "wd_standby: status=%s\n", sbuf); 1954 error = EIO; 1955 goto out; 1956 } 1957 error = 0; 1958 1959 out: 1960 ata_free_xfer(wd->drvp->chnl_softc, xfer); 1961 /* drive is supposed to go idle, do not call ata_channel_start() */ 1962 return error; 1963 } 1964 1965 int 1966 wd_flushcache(struct wd_softc *wd, int flags, bool start) 1967 { 1968 struct ata_xfer *xfer; 1969 int error; 1970 1971 /* 1972 * WDCC_FLUSHCACHE is here since ATA-4, but some drives report 1973 * only ATA-2 and still support it. 1974 */ 1975 if (wd->drvp->ata_vers < 4 && 1976 ((wd->sc_params.atap_cmd_set2 & WDC_CMD2_FC) == 0 || 1977 wd->sc_params.atap_cmd_set2 == 0xffff)) 1978 return ENODEV; 1979 1980 mutex_enter(&wd->sc_lock); 1981 SET(wd->sc_flags, WDF_FLUSH_PEND); 1982 mutex_exit(&wd->sc_lock); 1983 1984 xfer = ata_get_xfer(wd->drvp->chnl_softc); 1985 1986 mutex_enter(&wd->sc_lock); 1987 CLR(wd->sc_flags, WDF_FLUSH_PEND); 1988 mutex_exit(&wd->sc_lock); 1989 1990 if (xfer == NULL) { 1991 error = EINTR; 1992 goto out; 1993 } 1994 1995 if ((wd->sc_params.atap_cmd2_en & ATA_CMD2_LBA48) != 0 && 1996 (wd->sc_params.atap_cmd2_en & ATA_CMD2_FCE) != 0) { 1997 xfer->c_ata_c.r_command = WDCC_FLUSHCACHE_EXT; 1998 flags |= AT_LBA48; 1999 } else 2000 xfer->c_ata_c.r_command = WDCC_FLUSHCACHE; 2001 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 2002 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 2003 xfer->c_ata_c.flags = flags | AT_READREG; 2004 xfer->c_ata_c.timeout = 300000; /* 5m timeout */ 2005 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 2006 aprint_error_dev(wd->sc_dev, 2007 "flush cache command didn't complete\n"); 2008 error = EIO; 2009 goto out_xfer; 2010 } 2011 if (xfer->c_ata_c.flags & AT_ERROR) { 2012 if (xfer->c_ata_c.r_error == WDCE_ABRT) { 2013 /* command not supported */ 2014 error = ENODEV; 2015 goto out_xfer; 2016 } 2017 } 2018 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2019 char sbuf[sizeof(at_errbits) + 64]; 2020 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 2021 aprint_error_dev(wd->sc_dev, "wd_flushcache: status=%s\n", 2022 sbuf); 2023 error = EIO; 2024 goto out_xfer; 2025 } 2026 error = 0; 2027 2028 out_xfer: 2029 ata_free_xfer(wd->drvp->chnl_softc, xfer); 2030 2031 out: 2032 /* kick queue processing blocked while waiting for flush xfer */ 2033 if (start) 2034 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 2035 2036 return error; 2037 } 2038 2039 int 2040 wd_trim(struct wd_softc *wd, int part, daddr_t bno, long size) 2041 { 2042 struct ata_xfer *xfer; 2043 int error; 2044 unsigned char *req; 2045 2046 if (part != RAW_PART) 2047 bno += wd->sc_dk.dk_label->d_partitions[part].p_offset;; 2048 2049 xfer = ata_get_xfer(wd->drvp->chnl_softc); 2050 if (xfer == NULL) 2051 return EINTR; 2052 2053 req = kmem_zalloc(512, KM_SLEEP); 2054 req[0] = bno & 0xff; 2055 req[1] = (bno >> 8) & 0xff; 2056 req[2] = (bno >> 16) & 0xff; 2057 req[3] = (bno >> 24) & 0xff; 2058 req[4] = (bno >> 32) & 0xff; 2059 req[5] = (bno >> 40) & 0xff; 2060 req[6] = size & 0xff; 2061 req[7] = (size >> 8) & 0xff; 2062 2063 xfer->c_ata_c.r_command = ATA_DATA_SET_MANAGEMENT; 2064 xfer->c_ata_c.r_count = 1; 2065 xfer->c_ata_c.r_features = ATA_SUPPORT_DSM_TRIM; 2066 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 2067 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 2068 xfer->c_ata_c.timeout = 30000; /* 30s timeout */ 2069 xfer->c_ata_c.data = req; 2070 xfer->c_ata_c.bcount = 512; 2071 xfer->c_ata_c.flags |= AT_WRITE | AT_WAIT; 2072 if (wd->atabus->ata_exec_command(wd->drvp, xfer) != ATACMD_COMPLETE) { 2073 aprint_error_dev(wd->sc_dev, 2074 "trim command didn't complete\n"); 2075 kmem_free(req, 512); 2076 error = EIO; 2077 goto out; 2078 } 2079 kmem_free(req, 512); 2080 if (xfer->c_ata_c.flags & AT_ERROR) { 2081 if (xfer->c_ata_c.r_error == WDCE_ABRT) { 2082 /* command not supported */ 2083 error = ENODEV; 2084 goto out; 2085 } 2086 } 2087 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2088 char sbuf[sizeof(at_errbits) + 64]; 2089 snprintb(sbuf, sizeof(sbuf), at_errbits, xfer->c_ata_c.flags); 2090 aprint_error_dev(wd->sc_dev, "wd_trim: status=%s\n", 2091 sbuf); 2092 error = EIO; 2093 goto out; 2094 } 2095 error = 0; 2096 2097 out: 2098 ata_free_xfer(wd->drvp->chnl_softc, xfer); 2099 ata_channel_start(wd->drvp->chnl_softc, wd->drvp->drive); 2100 return error; 2101 } 2102 2103 bool 2104 wd_shutdown(device_t dev, int how) 2105 { 2106 struct wd_softc *wd = device_private(dev); 2107 2108 /* the adapter needs to be enabled */ 2109 if (wd->atabus->ata_addref(wd->drvp)) 2110 return true; /* no need to complain */ 2111 2112 wd_flushcache(wd, AT_POLL, false); 2113 if ((how & RB_POWERDOWN) == RB_POWERDOWN) 2114 wd_standby(wd, AT_POLL); 2115 return true; 2116 } 2117 2118 /* 2119 * Allocate space for a ioctl queue structure. Mostly taken from 2120 * scsipi_ioctl.c 2121 */ 2122 struct wd_ioctl * 2123 wi_get(struct wd_softc *wd) 2124 { 2125 struct wd_ioctl *wi; 2126 2127 wi = malloc(sizeof(struct wd_ioctl), M_TEMP, M_WAITOK|M_ZERO); 2128 wi->wi_softc = wd; 2129 buf_init(&wi->wi_bp); 2130 2131 return (wi); 2132 } 2133 2134 /* 2135 * Free an ioctl structure and remove it from our list 2136 */ 2137 2138 void 2139 wi_free(struct wd_ioctl *wi) 2140 { 2141 buf_destroy(&wi->wi_bp); 2142 free(wi, M_TEMP); 2143 } 2144 2145 /* 2146 * Find a wd_ioctl structure based on the struct buf. 2147 */ 2148 2149 struct wd_ioctl * 2150 wi_find(struct buf *bp) 2151 { 2152 return container_of(bp, struct wd_ioctl, wi_bp); 2153 } 2154 2155 static uint 2156 wi_sector_size(const struct wd_ioctl * const wi) 2157 { 2158 switch (wi->wi_atareq.command) { 2159 case WDCC_READ: 2160 case WDCC_WRITE: 2161 case WDCC_READMULTI: 2162 case WDCC_WRITEMULTI: 2163 case WDCC_READDMA: 2164 case WDCC_WRITEDMA: 2165 case WDCC_READ_EXT: 2166 case WDCC_WRITE_EXT: 2167 case WDCC_READMULTI_EXT: 2168 case WDCC_WRITEMULTI_EXT: 2169 case WDCC_READDMA_EXT: 2170 case WDCC_WRITEDMA_EXT: 2171 case WDCC_READ_FPDMA_QUEUED: 2172 case WDCC_WRITE_FPDMA_QUEUED: 2173 return wi->wi_softc->sc_blksize; 2174 default: 2175 return 512; 2176 } 2177 } 2178 2179 /* 2180 * Ioctl pseudo strategy routine 2181 * 2182 * This is mostly stolen from scsipi_ioctl.c:scsistrategy(). What 2183 * happens here is: 2184 * 2185 * - wdioctl() queues a wd_ioctl structure. 2186 * 2187 * - wdioctl() calls physio/wdioctlstrategy based on whether or not 2188 * user space I/O is required. If physio() is called, physio() eventually 2189 * calls wdioctlstrategy(). 2190 * 2191 * - In either case, wdioctlstrategy() calls wd->atabus->ata_exec_command() 2192 * to perform the actual command 2193 * 2194 * The reason for the use of the pseudo strategy routine is because 2195 * when doing I/O to/from user space, physio _really_ wants to be in 2196 * the loop. We could put the entire buffer into the ioctl request 2197 * structure, but that won't scale if we want to do things like download 2198 * microcode. 2199 */ 2200 2201 void 2202 wdioctlstrategy(struct buf *bp) 2203 { 2204 struct wd_ioctl *wi; 2205 struct ata_xfer *xfer; 2206 int error = 0; 2207 2208 wi = wi_find(bp); 2209 if (wi == NULL) { 2210 printf("wdioctlstrategy: " 2211 "No matching ioctl request found in queue\n"); 2212 error = EINVAL; 2213 goto out2; 2214 } 2215 2216 xfer = ata_get_xfer(wi->wi_softc->drvp->chnl_softc); 2217 if (xfer == NULL) { 2218 error = EINTR; 2219 goto out2; 2220 } 2221 2222 /* 2223 * Abort if physio broke up the transfer 2224 */ 2225 2226 if (bp->b_bcount != wi->wi_atareq.datalen) { 2227 printf("physio split wd ioctl request... cannot proceed\n"); 2228 error = EIO; 2229 goto out; 2230 } 2231 2232 /* 2233 * Abort if we didn't get a buffer size that was a multiple of 2234 * our sector size (or overflows CHS/LBA28 sector count) 2235 */ 2236 2237 if ((bp->b_bcount % wi_sector_size(wi)) != 0 || 2238 (bp->b_bcount / wi_sector_size(wi)) >= 2239 (1 << NBBY)) { 2240 error = EINVAL; 2241 goto out; 2242 } 2243 2244 /* 2245 * Make sure a timeout was supplied in the ioctl request 2246 */ 2247 2248 if (wi->wi_atareq.timeout == 0) { 2249 error = EINVAL; 2250 goto out; 2251 } 2252 2253 if (wi->wi_atareq.flags & ATACMD_READ) 2254 xfer->c_ata_c.flags |= AT_READ; 2255 else if (wi->wi_atareq.flags & ATACMD_WRITE) 2256 xfer->c_ata_c.flags |= AT_WRITE; 2257 2258 if (wi->wi_atareq.flags & ATACMD_READREG) 2259 xfer->c_ata_c.flags |= AT_READREG; 2260 2261 if ((wi->wi_atareq.flags & ATACMD_LBA) != 0) 2262 xfer->c_ata_c.flags |= AT_LBA; 2263 2264 xfer->c_ata_c.flags |= AT_WAIT; 2265 2266 xfer->c_ata_c.timeout = wi->wi_atareq.timeout; 2267 xfer->c_ata_c.r_command = wi->wi_atareq.command; 2268 xfer->c_ata_c.r_lba = ((wi->wi_atareq.head & 0x0f) << 24) | 2269 (wi->wi_atareq.cylinder << 8) | 2270 wi->wi_atareq.sec_num; 2271 xfer->c_ata_c.r_count = wi->wi_atareq.sec_count; 2272 xfer->c_ata_c.r_features = wi->wi_atareq.features; 2273 xfer->c_ata_c.r_st_bmask = WDCS_DRDY; 2274 xfer->c_ata_c.r_st_pmask = WDCS_DRDY; 2275 xfer->c_ata_c.data = wi->wi_bp.b_data; 2276 xfer->c_ata_c.bcount = wi->wi_bp.b_bcount; 2277 2278 if (wi->wi_softc->atabus->ata_exec_command(wi->wi_softc->drvp, xfer) 2279 != ATACMD_COMPLETE) { 2280 wi->wi_atareq.retsts = ATACMD_ERROR; 2281 error = EIO; 2282 goto out; 2283 } 2284 2285 if (xfer->c_ata_c.flags & (AT_ERROR | AT_TIMEOU | AT_DF)) { 2286 if (xfer->c_ata_c.flags & AT_ERROR) { 2287 wi->wi_atareq.retsts = ATACMD_ERROR; 2288 wi->wi_atareq.error = xfer->c_ata_c.r_error; 2289 } else if (xfer->c_ata_c.flags & AT_DF) 2290 wi->wi_atareq.retsts = ATACMD_DF; 2291 else 2292 wi->wi_atareq.retsts = ATACMD_TIMEOUT; 2293 } else { 2294 wi->wi_atareq.retsts = ATACMD_OK; 2295 if (wi->wi_atareq.flags & ATACMD_READREG) { 2296 wi->wi_atareq.command = xfer->c_ata_c.r_status; 2297 wi->wi_atareq.features = xfer->c_ata_c.r_error; 2298 wi->wi_atareq.sec_count = xfer->c_ata_c.r_count; 2299 wi->wi_atareq.sec_num = xfer->c_ata_c.r_lba & 0xff; 2300 wi->wi_atareq.head = (xfer->c_ata_c.r_device & 0xf0) | 2301 ((xfer->c_ata_c.r_lba >> 24) & 0x0f); 2302 wi->wi_atareq.cylinder = 2303 (xfer->c_ata_c.r_lba >> 8) & 0xffff; 2304 wi->wi_atareq.error = xfer->c_ata_c.r_error; 2305 } 2306 } 2307 2308 out: 2309 ata_free_xfer(wi->wi_softc->drvp->chnl_softc, xfer); 2310 ata_channel_start(wi->wi_softc->drvp->chnl_softc, 2311 wi->wi_softc->drvp->drive); 2312 out2: 2313 bp->b_error = error; 2314 if (error) 2315 bp->b_resid = bp->b_bcount; 2316 biodone(bp); 2317 } 2318 2319 static void 2320 wd_sysctl_attach(struct wd_softc *wd) 2321 { 2322 const struct sysctlnode *node; 2323 int error; 2324 2325 /* sysctl set-up */ 2326 if (sysctl_createv(&wd->nodelog, 0, NULL, &node, 2327 0, CTLTYPE_NODE, device_xname(wd->sc_dev), 2328 SYSCTL_DESCR("wd driver settings"), 2329 NULL, 0, NULL, 0, 2330 CTL_HW, CTL_CREATE, CTL_EOL) != 0) { 2331 aprint_error_dev(wd->sc_dev, 2332 "could not create %s.%s sysctl node\n", 2333 "hw", device_xname(wd->sc_dev)); 2334 return; 2335 } 2336 2337 wd->drv_max_tags = ATA_MAX_OPENINGS; 2338 if ((error = sysctl_createv(&wd->nodelog, 0, NULL, NULL, 2339 CTLFLAG_READWRITE, CTLTYPE_INT, "max_tags", 2340 SYSCTL_DESCR("max number of NCQ tags to use"), 2341 NULL, 0, &wd->drv_max_tags, 0, 2342 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 2343 != 0) { 2344 aprint_error_dev(wd->sc_dev, 2345 "could not create %s.%s.max_tags sysctl - error %d\n", 2346 "hw", device_xname(wd->sc_dev), error); 2347 return; 2348 } 2349 2350 wd->drv_ncq = true; 2351 if ((error = sysctl_createv(&wd->nodelog, 0, NULL, NULL, 2352 CTLFLAG_READWRITE, CTLTYPE_BOOL, "use_ncq", 2353 SYSCTL_DESCR("use NCQ if supported"), 2354 NULL, 0, &wd->drv_ncq, 0, 2355 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 2356 != 0) { 2357 aprint_error_dev(wd->sc_dev, 2358 "could not create %s.%s.use_ncq sysctl - error %d\n", 2359 "hw", device_xname(wd->sc_dev), error); 2360 return; 2361 } 2362 2363 wd->drv_ncq_prio = true; 2364 if ((error = sysctl_createv(&wd->nodelog, 0, NULL, NULL, 2365 CTLFLAG_READWRITE, CTLTYPE_BOOL, "use_ncq_prio", 2366 SYSCTL_DESCR("use NCQ PRIORITY if supported"), 2367 NULL, 0, &wd->drv_ncq_prio, 0, 2368 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 2369 != 0) { 2370 aprint_error_dev(wd->sc_dev, 2371 "could not create %s.%s.use_ncq_prio sysctl - error %d\n", 2372 "hw", device_xname(wd->sc_dev), error); 2373 return; 2374 } 2375 2376 #ifdef WD_CHAOS_MONKEY 2377 wd->drv_chaos_freq = 0; 2378 if ((error = sysctl_createv(&wd->nodelog, 0, NULL, NULL, 2379 CTLFLAG_READWRITE, CTLTYPE_INT, "chaos_freq", 2380 SYSCTL_DESCR("simulated bio read error rate"), 2381 NULL, 0, &wd->drv_chaos_freq, 0, 2382 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 2383 != 0) { 2384 aprint_error_dev(wd->sc_dev, 2385 "could not create %s.%s.chaos_freq sysctl - error %d\n", 2386 "hw", device_xname(wd->sc_dev), error); 2387 return; 2388 } 2389 2390 wd->drv_chaos_cnt = 0; 2391 if ((error = sysctl_createv(&wd->nodelog, 0, NULL, NULL, 2392 CTLFLAG_READONLY, CTLTYPE_INT, "chaos_cnt", 2393 SYSCTL_DESCR("number of processed bio reads"), 2394 NULL, 0, &wd->drv_chaos_cnt, 0, 2395 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL)) 2396 != 0) { 2397 aprint_error_dev(wd->sc_dev, 2398 "could not create %s.%s.chaos_cnt sysctl - error %d\n", 2399 "hw", device_xname(wd->sc_dev), error); 2400 return; 2401 } 2402 #endif 2403 2404 } 2405 2406 static void 2407 wd_sysctl_detach(struct wd_softc *wd) 2408 { 2409 sysctl_teardown(&wd->nodelog); 2410 } 2411 2412
Indexes created Sun Sep 28 07:09:56 GMT 2025