| 1 | /* $NetBSD: sd.c,v 1.319 2016/11/20 15:37:19 mlelstv Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1998, 2003, 2004 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Charles M. Hannum. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | /* |
| 33 | * Originally written by Julian Elischer (julian@dialix.oz.au) |
| 34 | * for TRW Financial Systems for use under the MACH(2.5) operating system. |
| 35 | * |
| 36 | * TRW Financial Systems, in accordance with their agreement with Carnegie |
| 37 | * Mellon University, makes this software available to CMU to distribute |
| 38 | * or use in any manner that they see fit as long as this message is kept with |
| 39 | * the software. For this reason TFS also grants any other persons or |
| 40 | * organisations permission to use or modify this software. |
| 41 | * |
| 42 | * TFS supplies this software to be publicly redistributed |
| 43 | * on the understanding that TFS is not responsible for the correct |
| 44 | * functioning of this software in any circumstances. |
| 45 | * |
| 46 | * Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992 |
| 47 | */ |
| 48 | |
| 49 | #include <sys/cdefs.h> |
| 50 | __KERNEL_RCSID(0, "$NetBSD: sd.c,v 1.319 2016/11/20 15:37:19 mlelstv Exp $" ); |
| 51 | |
| 52 | #ifdef _KERNEL_OPT |
| 53 | #include "opt_scsi.h" |
| 54 | #endif |
| 55 | |
| 56 | #define SD_MPSAFE D_MPSAFE |
| 57 | |
| 58 | #include <sys/param.h> |
| 59 | #include <sys/systm.h> |
| 60 | #include <sys/kernel.h> |
| 61 | #include <sys/file.h> |
| 62 | #include <sys/stat.h> |
| 63 | #include <sys/ioctl.h> |
| 64 | #include <sys/scsiio.h> |
| 65 | #include <sys/buf.h> |
| 66 | #include <sys/bufq.h> |
| 67 | #include <sys/uio.h> |
| 68 | #include <sys/malloc.h> |
| 69 | #include <sys/errno.h> |
| 70 | #include <sys/device.h> |
| 71 | #include <sys/disklabel.h> |
| 72 | #include <sys/disk.h> |
| 73 | #include <sys/proc.h> |
| 74 | #include <sys/conf.h> |
| 75 | #include <sys/vnode.h> |
| 76 | #include <sys/rndsource.h> |
| 77 | |
| 78 | #include <dev/scsipi/scsi_spc.h> |
| 79 | #include <dev/scsipi/scsipi_all.h> |
| 80 | #include <dev/scsipi/scsi_all.h> |
| 81 | #include <dev/scsipi/scsipi_disk.h> |
| 82 | #include <dev/scsipi/scsi_disk.h> |
| 83 | #include <dev/scsipi/scsiconf.h> |
| 84 | #include <dev/scsipi/scsipi_base.h> |
| 85 | #include <dev/scsipi/sdvar.h> |
| 86 | |
| 87 | #include <prop/proplib.h> |
| 88 | |
| 89 | #define SDUNIT(dev) DISKUNIT(dev) |
| 90 | #define SDPART(dev) DISKPART(dev) |
| 91 | #define SDMINOR(unit, part) DISKMINOR(unit, part) |
| 92 | #define MAKESDDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) |
| 93 | |
| 94 | #define SDLABELDEV(dev) (MAKESDDEV(major(dev), SDUNIT(dev), RAW_PART)) |
| 95 | |
| 96 | #define SD_DEFAULT_BLKSIZE 512 |
| 97 | |
| 98 | static void sdminphys(struct buf *); |
| 99 | static void sdgetdefaultlabel(struct sd_softc *, struct disklabel *); |
| 100 | static int sdgetdisklabel(struct sd_softc *); |
| 101 | static void sdstart(struct scsipi_periph *); |
| 102 | static void sdrestart(void *); |
| 103 | static void sddone(struct scsipi_xfer *, int); |
| 104 | static bool sd_suspend(device_t, const pmf_qual_t *); |
| 105 | static bool sd_shutdown(device_t, int); |
| 106 | static int sd_interpret_sense(struct scsipi_xfer *); |
| 107 | static int sdlastclose(device_t); |
| 108 | |
| 109 | static int sd_mode_sense(struct sd_softc *, u_int8_t, void *, size_t, int, |
| 110 | int, int *); |
| 111 | static int sd_mode_select(struct sd_softc *, u_int8_t, void *, size_t, int, |
| 112 | int); |
| 113 | static int sd_validate_blksize(struct scsipi_periph *, int); |
| 114 | static u_int64_t sd_read_capacity(struct scsipi_periph *, int *, int flags); |
| 115 | static int sd_get_simplifiedparms(struct sd_softc *, struct disk_parms *, |
| 116 | int); |
| 117 | static int sd_get_capacity(struct sd_softc *, struct disk_parms *, int); |
| 118 | static int sd_get_parms(struct sd_softc *, struct disk_parms *, int); |
| 119 | static int sd_get_parms_page4(struct sd_softc *, struct disk_parms *, |
| 120 | int); |
| 121 | static int sd_get_parms_page5(struct sd_softc *, struct disk_parms *, |
| 122 | int); |
| 123 | |
| 124 | static int sd_flush(struct sd_softc *, int); |
| 125 | static int sd_getcache(struct sd_softc *, int *); |
| 126 | static int sd_setcache(struct sd_softc *, int); |
| 127 | |
| 128 | static int sdmatch(device_t, cfdata_t, void *); |
| 129 | static void sdattach(device_t, device_t, void *); |
| 130 | static int sddetach(device_t, int); |
| 131 | static void sd_set_geometry(struct sd_softc *); |
| 132 | |
| 133 | CFATTACH_DECL3_NEW(sd, sizeof(struct sd_softc), sdmatch, sdattach, sddetach, |
| 134 | NULL, NULL, NULL, DVF_DETACH_SHUTDOWN); |
| 135 | |
| 136 | extern struct cfdriver sd_cd; |
| 137 | |
| 138 | static const struct scsipi_inquiry_pattern sd_patterns[] = { |
| 139 | {T_DIRECT, T_FIXED, |
| 140 | "" , "" , "" }, |
| 141 | {T_DIRECT, T_REMOV, |
| 142 | "" , "" , "" }, |
| 143 | {T_OPTICAL, T_FIXED, |
| 144 | "" , "" , "" }, |
| 145 | {T_OPTICAL, T_REMOV, |
| 146 | "" , "" , "" }, |
| 147 | {T_SIMPLE_DIRECT, T_FIXED, |
| 148 | "" , "" , "" }, |
| 149 | {T_SIMPLE_DIRECT, T_REMOV, |
| 150 | "" , "" , "" }, |
| 151 | }; |
| 152 | |
| 153 | static dev_type_open(sdopen); |
| 154 | static dev_type_close(sdclose); |
| 155 | static dev_type_read(sdread); |
| 156 | static dev_type_write(sdwrite); |
| 157 | static dev_type_ioctl(sdioctl); |
| 158 | static dev_type_strategy(sdstrategy); |
| 159 | static dev_type_dump(sddump); |
| 160 | static dev_type_size(sdsize); |
| 161 | |
| 162 | const struct bdevsw sd_bdevsw = { |
| 163 | .d_open = sdopen, |
| 164 | .d_close = sdclose, |
| 165 | .d_strategy = sdstrategy, |
| 166 | .d_ioctl = sdioctl, |
| 167 | .d_dump = sddump, |
| 168 | .d_psize = sdsize, |
| 169 | .d_discard = nodiscard, |
| 170 | .d_flag = D_DISK | SD_MPSAFE |
| 171 | }; |
| 172 | |
| 173 | const struct cdevsw sd_cdevsw = { |
| 174 | .d_open = sdopen, |
| 175 | .d_close = sdclose, |
| 176 | .d_read = sdread, |
| 177 | .d_write = sdwrite, |
| 178 | .d_ioctl = sdioctl, |
| 179 | .d_stop = nostop, |
| 180 | .d_tty = notty, |
| 181 | .d_poll = nopoll, |
| 182 | .d_mmap = nommap, |
| 183 | .d_kqfilter = nokqfilter, |
| 184 | .d_discard = nodiscard, |
| 185 | .d_flag = D_DISK | SD_MPSAFE |
| 186 | }; |
| 187 | |
| 188 | static struct dkdriver sddkdriver = { |
| 189 | .d_strategy = sdstrategy, |
| 190 | .d_minphys = sdminphys |
| 191 | }; |
| 192 | |
| 193 | static const struct scsipi_periphsw sd_switch = { |
| 194 | sd_interpret_sense, /* check our error handler first */ |
| 195 | sdstart, /* have a queue, served by this */ |
| 196 | NULL, /* have no async handler */ |
| 197 | sddone, /* deal with stats at interrupt time */ |
| 198 | }; |
| 199 | |
| 200 | struct sd_mode_sense_data { |
| 201 | /* |
| 202 | * XXX |
| 203 | * We are not going to parse this as-is -- it just has to be large |
| 204 | * enough. |
| 205 | */ |
| 206 | union { |
| 207 | struct scsi_mode_parameter_header_6 small; |
| 208 | struct scsi_mode_parameter_header_10 big; |
| 209 | } ; |
| 210 | struct scsi_general_block_descriptor blk_desc; |
| 211 | union scsi_disk_pages pages; |
| 212 | }; |
| 213 | |
| 214 | /* |
| 215 | * The routine called by the low level scsi routine when it discovers |
| 216 | * A device suitable for this driver |
| 217 | */ |
| 218 | static int |
| 219 | sdmatch(device_t parent, cfdata_t match, |
| 220 | void *aux) |
| 221 | { |
| 222 | struct scsipibus_attach_args *sa = aux; |
| 223 | int priority; |
| 224 | |
| 225 | (void)scsipi_inqmatch(&sa->sa_inqbuf, |
| 226 | sd_patterns, sizeof(sd_patterns) / sizeof(sd_patterns[0]), |
| 227 | sizeof(sd_patterns[0]), &priority); |
| 228 | |
| 229 | return (priority); |
| 230 | } |
| 231 | |
| 232 | /* |
| 233 | * Attach routine common to atapi & scsi. |
| 234 | */ |
| 235 | static void |
| 236 | sdattach(device_t parent, device_t self, void *aux) |
| 237 | { |
| 238 | struct sd_softc *sd = device_private(self); |
| 239 | struct scsipibus_attach_args *sa = aux; |
| 240 | struct scsipi_periph *periph = sa->sa_periph; |
| 241 | int error, result; |
| 242 | struct disk_parms *dp = &sd->params; |
| 243 | char pbuf[9]; |
| 244 | |
| 245 | SC_DEBUG(periph, SCSIPI_DB2, ("sdattach: " )); |
| 246 | |
| 247 | sd->sc_dev = self; |
| 248 | sd->type = (sa->sa_inqbuf.type & SID_TYPE); |
| 249 | strncpy(sd->name, sa->sa_inqbuf.product, sizeof(sd->name)); |
| 250 | if (sd->type == T_SIMPLE_DIRECT) |
| 251 | periph->periph_quirks |= PQUIRK_ONLYBIG | PQUIRK_NOBIGMODESENSE; |
| 252 | |
| 253 | if (SCSIPI_BUSTYPE_TYPE(scsipi_periph_bustype(sa->sa_periph)) == |
| 254 | SCSIPI_BUSTYPE_SCSI && periph->periph_version == 0) |
| 255 | sd->flags |= SDF_ANCIENT; |
| 256 | |
| 257 | bufq_alloc(&sd->buf_queue, BUFQ_DISK_DEFAULT_STRAT, BUFQ_SORT_RAWBLOCK); |
| 258 | |
| 259 | callout_init(&sd->sc_callout, 0); |
| 260 | |
| 261 | /* |
| 262 | * Store information needed to contact our base driver |
| 263 | */ |
| 264 | sd->sc_periph = periph; |
| 265 | |
| 266 | periph->periph_dev = sd->sc_dev; |
| 267 | periph->periph_switch = &sd_switch; |
| 268 | |
| 269 | /* |
| 270 | * Increase our openings to the maximum-per-periph |
| 271 | * supported by the adapter. This will either be |
| 272 | * clamped down or grown by the adapter if necessary. |
| 273 | */ |
| 274 | periph->periph_openings = |
| 275 | SCSIPI_CHAN_MAX_PERIPH(periph->periph_channel); |
| 276 | periph->periph_flags |= PERIPH_GROW_OPENINGS; |
| 277 | |
| 278 | /* |
| 279 | * Initialize and attach the disk structure. |
| 280 | */ |
| 281 | disk_init(&sd->sc_dk, device_xname(sd->sc_dev), &sddkdriver); |
| 282 | disk_attach(&sd->sc_dk); |
| 283 | |
| 284 | /* |
| 285 | * Use the subdriver to request information regarding the drive. |
| 286 | */ |
| 287 | aprint_naive("\n" ); |
| 288 | aprint_normal("\n" ); |
| 289 | |
| 290 | if (periph->periph_quirks & PQUIRK_START) |
| 291 | (void)scsipi_start(periph, SSS_START, XS_CTL_SILENT); |
| 292 | |
| 293 | error = scsipi_test_unit_ready(periph, |
| 294 | XS_CTL_DISCOVERY | XS_CTL_IGNORE_ILLEGAL_REQUEST | |
| 295 | XS_CTL_IGNORE_MEDIA_CHANGE | XS_CTL_SILENT_NODEV); |
| 296 | |
| 297 | if (error) |
| 298 | result = SDGP_RESULT_OFFLINE; |
| 299 | else |
| 300 | result = sd_get_parms(sd, &sd->params, XS_CTL_DISCOVERY); |
| 301 | aprint_normal_dev(sd->sc_dev, "" ); |
| 302 | switch (result) { |
| 303 | case SDGP_RESULT_OK: |
| 304 | format_bytes(pbuf, sizeof(pbuf), |
| 305 | (u_int64_t)dp->disksize * dp->blksize); |
| 306 | aprint_normal( |
| 307 | "%s, %ld cyl, %ld head, %ld sec, %ld bytes/sect x %llu sectors" , |
| 308 | pbuf, dp->cyls, dp->heads, dp->sectors, dp->blksize, |
| 309 | (unsigned long long)dp->disksize); |
| 310 | break; |
| 311 | |
| 312 | case SDGP_RESULT_OFFLINE: |
| 313 | aprint_normal("drive offline" ); |
| 314 | break; |
| 315 | |
| 316 | case SDGP_RESULT_UNFORMATTED: |
| 317 | aprint_normal("unformatted media" ); |
| 318 | break; |
| 319 | |
| 320 | #ifdef DIAGNOSTIC |
| 321 | default: |
| 322 | panic("sdattach: unknown result from get_parms" ); |
| 323 | break; |
| 324 | #endif |
| 325 | } |
| 326 | aprint_normal("\n" ); |
| 327 | |
| 328 | /* |
| 329 | * Establish a shutdown hook so that we can ensure that |
| 330 | * our data has actually made it onto the platter at |
| 331 | * shutdown time. Note that this relies on the fact |
| 332 | * that the shutdown hooks at the "leaves" of the device tree |
| 333 | * are run, first (thus guaranteeing that our hook runs before |
| 334 | * our ancestors'). |
| 335 | */ |
| 336 | if (!pmf_device_register1(self, sd_suspend, NULL, sd_shutdown)) |
| 337 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
| 338 | |
| 339 | /* |
| 340 | * attach the device into the random source list |
| 341 | */ |
| 342 | rnd_attach_source(&sd->rnd_source, device_xname(sd->sc_dev), |
| 343 | RND_TYPE_DISK, RND_FLAG_DEFAULT); |
| 344 | |
| 345 | /* Discover wedges on this disk. */ |
| 346 | dkwedge_discover(&sd->sc_dk); |
| 347 | |
| 348 | /* |
| 349 | * Disk insertion and removal times can be a useful source |
| 350 | * of entropy, though the estimator should never _count_ |
| 351 | * these bits, on insertion, because the deltas to the |
| 352 | * nonexistent) previous event should never allow it. |
| 353 | */ |
| 354 | rnd_add_uint32(&sd->rnd_source, 0); |
| 355 | } |
| 356 | |
| 357 | static int |
| 358 | sddetach(device_t self, int flags) |
| 359 | { |
| 360 | struct sd_softc *sd = device_private(self); |
| 361 | struct scsipi_periph *periph = sd->sc_periph; |
| 362 | struct scsipi_channel *chan = periph->periph_channel; |
| 363 | int bmaj, cmaj, i, mn, rc; |
| 364 | |
| 365 | rnd_add_uint32(&sd->rnd_source, 0); |
| 366 | |
| 367 | if ((rc = disk_begindetach(&sd->sc_dk, sdlastclose, self, flags)) != 0) |
| 368 | return rc; |
| 369 | |
| 370 | /* locate the major number */ |
| 371 | bmaj = bdevsw_lookup_major(&sd_bdevsw); |
| 372 | cmaj = cdevsw_lookup_major(&sd_cdevsw); |
| 373 | |
| 374 | /* Nuke the vnodes for any open instances */ |
| 375 | for (i = 0; i < MAXPARTITIONS; i++) { |
| 376 | mn = SDMINOR(device_unit(self), i); |
| 377 | vdevgone(bmaj, mn, mn, VBLK); |
| 378 | vdevgone(cmaj, mn, mn, VCHR); |
| 379 | } |
| 380 | |
| 381 | /* kill any pending restart */ |
| 382 | callout_stop(&sd->sc_callout); |
| 383 | |
| 384 | /* Delete all of our wedges. */ |
| 385 | dkwedge_delall(&sd->sc_dk); |
| 386 | |
| 387 | mutex_enter(chan_mtx(chan)); |
| 388 | |
| 389 | /* Kill off any queued buffers. */ |
| 390 | bufq_drain(sd->buf_queue); |
| 391 | |
| 392 | /* Kill off any pending commands. */ |
| 393 | scsipi_kill_pending(sd->sc_periph); |
| 394 | |
| 395 | mutex_exit(chan_mtx(chan)); |
| 396 | |
| 397 | bufq_free(sd->buf_queue); |
| 398 | |
| 399 | /* Detach from the disk list. */ |
| 400 | disk_detach(&sd->sc_dk); |
| 401 | disk_destroy(&sd->sc_dk); |
| 402 | |
| 403 | callout_destroy(&sd->sc_callout); |
| 404 | |
| 405 | pmf_device_deregister(self); |
| 406 | |
| 407 | /* Unhook the entropy source. */ |
| 408 | rnd_detach_source(&sd->rnd_source); |
| 409 | |
| 410 | return (0); |
| 411 | } |
| 412 | |
| 413 | /* |
| 414 | * open the device. Make sure the partition info is a up-to-date as can be. |
| 415 | */ |
| 416 | static int |
| 417 | sdopen(dev_t dev, int flag, int fmt, struct lwp *l) |
| 418 | { |
| 419 | struct sd_softc *sd; |
| 420 | struct scsipi_periph *periph; |
| 421 | struct scsipi_adapter *adapt; |
| 422 | int unit, part; |
| 423 | int error; |
| 424 | |
| 425 | unit = SDUNIT(dev); |
| 426 | sd = device_lookup_private(&sd_cd, unit); |
| 427 | if (sd == NULL) |
| 428 | return (ENXIO); |
| 429 | |
| 430 | if (!device_is_active(sd->sc_dev)) |
| 431 | return (ENODEV); |
| 432 | |
| 433 | part = SDPART(dev); |
| 434 | |
| 435 | mutex_enter(&sd->sc_dk.dk_openlock); |
| 436 | |
| 437 | /* |
| 438 | * If there are wedges, and this is not RAW_PART, then we |
| 439 | * need to fail. |
| 440 | */ |
| 441 | if (sd->sc_dk.dk_nwedges != 0 && part != RAW_PART) { |
| 442 | error = EBUSY; |
| 443 | goto bad1; |
| 444 | } |
| 445 | |
| 446 | periph = sd->sc_periph; |
| 447 | adapt = periph->periph_channel->chan_adapter; |
| 448 | |
| 449 | SC_DEBUG(periph, SCSIPI_DB1, |
| 450 | ("sdopen: dev=0x%" PRIx64" (unit %d (of %d), partition %d)\n" , dev, unit, |
| 451 | sd_cd.cd_ndevs, part)); |
| 452 | |
| 453 | /* |
| 454 | * If this is the first open of this device, add a reference |
| 455 | * to the adapter. |
| 456 | */ |
| 457 | if (sd->sc_dk.dk_openmask == 0 && |
| 458 | (error = scsipi_adapter_addref(adapt)) != 0) |
| 459 | goto bad1; |
| 460 | |
| 461 | if ((periph->periph_flags & PERIPH_OPEN) != 0) { |
| 462 | /* |
| 463 | * If any partition is open, but the disk has been invalidated, |
| 464 | * disallow further opens of non-raw partition |
| 465 | */ |
| 466 | if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 && |
| 467 | (part != RAW_PART || fmt != S_IFCHR)) { |
| 468 | error = EIO; |
| 469 | goto bad2; |
| 470 | } |
| 471 | } else { |
| 472 | int silent; |
| 473 | |
| 474 | if ((part == RAW_PART && fmt == S_IFCHR) || (flag & FSILENT)) |
| 475 | silent = XS_CTL_SILENT; |
| 476 | else |
| 477 | silent = 0; |
| 478 | |
| 479 | /* Check that it is still responding and ok. */ |
| 480 | error = scsipi_test_unit_ready(periph, |
| 481 | XS_CTL_IGNORE_ILLEGAL_REQUEST | XS_CTL_IGNORE_MEDIA_CHANGE | |
| 482 | silent); |
| 483 | |
| 484 | /* |
| 485 | * Start the pack spinning if necessary. Always allow the |
| 486 | * raw parition to be opened, for raw IOCTLs. Data transfers |
| 487 | * will check for SDEV_MEDIA_LOADED. |
| 488 | */ |
| 489 | if (error == EIO) { |
| 490 | int error2; |
| 491 | |
| 492 | error2 = scsipi_start(periph, SSS_START, silent); |
| 493 | switch (error2) { |
| 494 | case 0: |
| 495 | error = 0; |
| 496 | break; |
| 497 | case EIO: |
| 498 | case EINVAL: |
| 499 | break; |
| 500 | default: |
| 501 | error = error2; |
| 502 | break; |
| 503 | } |
| 504 | } |
| 505 | if (error) { |
| 506 | if (silent && (flag & FSILENT) == 0) |
| 507 | goto out; |
| 508 | goto bad2; |
| 509 | } |
| 510 | |
| 511 | periph->periph_flags |= PERIPH_OPEN; |
| 512 | |
| 513 | if (periph->periph_flags & PERIPH_REMOVABLE) { |
| 514 | /* Lock the pack in. */ |
| 515 | error = scsipi_prevent(periph, SPAMR_PREVENT_DT, |
| 516 | XS_CTL_IGNORE_ILLEGAL_REQUEST | |
| 517 | XS_CTL_IGNORE_MEDIA_CHANGE | |
| 518 | XS_CTL_SILENT); |
| 519 | if (error) |
| 520 | goto bad3; |
| 521 | } |
| 522 | |
| 523 | if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { |
| 524 | int param_error; |
| 525 | periph->periph_flags |= PERIPH_MEDIA_LOADED; |
| 526 | |
| 527 | /* |
| 528 | * Load the physical device parameters. |
| 529 | * |
| 530 | * Note that if media is present but unformatted, |
| 531 | * we allow the open (so that it can be formatted!). |
| 532 | * The drive should refuse real I/O, if the media is |
| 533 | * unformatted. |
| 534 | */ |
| 535 | if ((param_error = sd_get_parms(sd, &sd->params, 0)) |
| 536 | == SDGP_RESULT_OFFLINE) { |
| 537 | error = ENXIO; |
| 538 | periph->periph_flags &= ~PERIPH_MEDIA_LOADED; |
| 539 | goto bad3; |
| 540 | } |
| 541 | SC_DEBUG(periph, SCSIPI_DB3, ("Params loaded " )); |
| 542 | |
| 543 | /* Load the partition info if not already loaded. */ |
| 544 | if (param_error == 0) { |
| 545 | if ((sdgetdisklabel(sd) != 0) && (part != RAW_PART)) { |
| 546 | error = EIO; |
| 547 | goto bad3; |
| 548 | } |
| 549 | SC_DEBUG(periph, SCSIPI_DB3, |
| 550 | ("Disklabel loaded " )); |
| 551 | } |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | /* Check that the partition exists. */ |
| 556 | if (part != RAW_PART && |
| 557 | (part >= sd->sc_dk.dk_label->d_npartitions || |
| 558 | sd->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) { |
| 559 | error = ENXIO; |
| 560 | goto bad3; |
| 561 | } |
| 562 | |
| 563 | out: /* Insure only one open at a time. */ |
| 564 | switch (fmt) { |
| 565 | case S_IFCHR: |
| 566 | sd->sc_dk.dk_copenmask |= (1 << part); |
| 567 | break; |
| 568 | case S_IFBLK: |
| 569 | sd->sc_dk.dk_bopenmask |= (1 << part); |
| 570 | break; |
| 571 | } |
| 572 | sd->sc_dk.dk_openmask = |
| 573 | sd->sc_dk.dk_copenmask | sd->sc_dk.dk_bopenmask; |
| 574 | |
| 575 | SC_DEBUG(periph, SCSIPI_DB3, ("open complete\n" )); |
| 576 | mutex_exit(&sd->sc_dk.dk_openlock); |
| 577 | return (0); |
| 578 | |
| 579 | bad3: |
| 580 | if (sd->sc_dk.dk_openmask == 0) { |
| 581 | if (periph->periph_flags & PERIPH_REMOVABLE) |
| 582 | scsipi_prevent(periph, SPAMR_ALLOW, |
| 583 | XS_CTL_IGNORE_ILLEGAL_REQUEST | |
| 584 | XS_CTL_IGNORE_MEDIA_CHANGE | |
| 585 | XS_CTL_SILENT); |
| 586 | periph->periph_flags &= ~PERIPH_OPEN; |
| 587 | } |
| 588 | |
| 589 | bad2: |
| 590 | if (sd->sc_dk.dk_openmask == 0) |
| 591 | scsipi_adapter_delref(adapt); |
| 592 | |
| 593 | bad1: |
| 594 | mutex_exit(&sd->sc_dk.dk_openlock); |
| 595 | return (error); |
| 596 | } |
| 597 | |
| 598 | /* |
| 599 | * Caller must hold sd->sc_dk.dk_openlock. |
| 600 | */ |
| 601 | static int |
| 602 | sdlastclose(device_t self) |
| 603 | { |
| 604 | struct sd_softc *sd = device_private(self); |
| 605 | struct scsipi_periph *periph = sd->sc_periph; |
| 606 | struct scsipi_adapter *adapt = periph->periph_channel->chan_adapter; |
| 607 | |
| 608 | /* |
| 609 | * If the disk cache needs flushing, and the disk supports |
| 610 | * it, do it now. |
| 611 | */ |
| 612 | if ((sd->flags & SDF_DIRTY) != 0) { |
| 613 | if (sd_flush(sd, 0)) { |
| 614 | aprint_error_dev(sd->sc_dev, |
| 615 | "cache synchronization failed\n" ); |
| 616 | sd->flags &= ~SDF_FLUSHING; |
| 617 | } else |
| 618 | sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY); |
| 619 | } |
| 620 | |
| 621 | scsipi_wait_drain(periph); |
| 622 | |
| 623 | if (periph->periph_flags & PERIPH_REMOVABLE) |
| 624 | scsipi_prevent(periph, SPAMR_ALLOW, |
| 625 | XS_CTL_IGNORE_ILLEGAL_REQUEST | |
| 626 | XS_CTL_IGNORE_NOT_READY | |
| 627 | XS_CTL_SILENT); |
| 628 | periph->periph_flags &= ~PERIPH_OPEN; |
| 629 | |
| 630 | scsipi_wait_drain(periph); |
| 631 | |
| 632 | scsipi_adapter_delref(adapt); |
| 633 | |
| 634 | return 0; |
| 635 | } |
| 636 | |
| 637 | /* |
| 638 | * close the device.. only called if we are the LAST occurence of an open |
| 639 | * device. Convenient now but usually a pain. |
| 640 | */ |
| 641 | static int |
| 642 | sdclose(dev_t dev, int flag, int fmt, struct lwp *l) |
| 643 | { |
| 644 | struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(dev)); |
| 645 | int part = SDPART(dev); |
| 646 | |
| 647 | mutex_enter(&sd->sc_dk.dk_openlock); |
| 648 | switch (fmt) { |
| 649 | case S_IFCHR: |
| 650 | sd->sc_dk.dk_copenmask &= ~(1 << part); |
| 651 | break; |
| 652 | case S_IFBLK: |
| 653 | sd->sc_dk.dk_bopenmask &= ~(1 << part); |
| 654 | break; |
| 655 | } |
| 656 | sd->sc_dk.dk_openmask = |
| 657 | sd->sc_dk.dk_copenmask | sd->sc_dk.dk_bopenmask; |
| 658 | |
| 659 | if (sd->sc_dk.dk_openmask == 0) |
| 660 | sdlastclose(sd->sc_dev); |
| 661 | |
| 662 | mutex_exit(&sd->sc_dk.dk_openlock); |
| 663 | return (0); |
| 664 | } |
| 665 | |
| 666 | /* |
| 667 | * Actually translate the requested transfer into one the physical driver |
| 668 | * can understand. The transfer is described by a buf and will include |
| 669 | * only one physical transfer. |
| 670 | */ |
| 671 | static void |
| 672 | sdstrategy(struct buf *bp) |
| 673 | { |
| 674 | struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(bp->b_dev)); |
| 675 | struct scsipi_periph *periph = sd->sc_periph; |
| 676 | struct scsipi_channel *chan = periph->periph_channel; |
| 677 | struct disklabel *lp; |
| 678 | daddr_t blkno; |
| 679 | bool sector_aligned; |
| 680 | |
| 681 | SC_DEBUG(sd->sc_periph, SCSIPI_DB2, ("sdstrategy " )); |
| 682 | SC_DEBUG(sd->sc_periph, SCSIPI_DB1, |
| 683 | ("%d bytes @ blk %" PRId64 "\n" , bp->b_bcount, bp->b_blkno)); |
| 684 | /* |
| 685 | * If the device has been made invalid, error out |
| 686 | */ |
| 687 | if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0 || |
| 688 | !device_is_active(sd->sc_dev)) { |
| 689 | if (periph->periph_flags & PERIPH_OPEN) |
| 690 | bp->b_error = EIO; |
| 691 | else |
| 692 | bp->b_error = ENODEV; |
| 693 | goto done; |
| 694 | } |
| 695 | |
| 696 | lp = sd->sc_dk.dk_label; |
| 697 | |
| 698 | /* |
| 699 | * The transfer must be a whole number of blocks, offset must not be |
| 700 | * negative. |
| 701 | */ |
| 702 | if (lp->d_secsize == DEV_BSIZE) { |
| 703 | sector_aligned = (bp->b_bcount & (DEV_BSIZE - 1)) == 0; |
| 704 | } else { |
| 705 | sector_aligned = (bp->b_bcount % lp->d_secsize) == 0; |
| 706 | } |
| 707 | if (!sector_aligned || bp->b_blkno < 0) { |
| 708 | bp->b_error = EINVAL; |
| 709 | goto done; |
| 710 | } |
| 711 | /* |
| 712 | * If it's a null transfer, return immediatly |
| 713 | */ |
| 714 | if (bp->b_bcount == 0) |
| 715 | goto done; |
| 716 | |
| 717 | /* |
| 718 | * Do bounds checking, adjust transfer. if error, process. |
| 719 | * If end of partition, just return. |
| 720 | */ |
| 721 | if (SDPART(bp->b_dev) == RAW_PART) { |
| 722 | if (bounds_check_with_mediasize(bp, DEV_BSIZE, |
| 723 | sd->params.disksize512) <= 0) |
| 724 | goto done; |
| 725 | } else { |
| 726 | if (bounds_check_with_label(&sd->sc_dk, bp, |
| 727 | (sd->flags & (SDF_WLABEL|SDF_LABELLING)) != 0) <= 0) |
| 728 | goto done; |
| 729 | } |
| 730 | |
| 731 | /* |
| 732 | * Now convert the block number to absolute and put it in |
| 733 | * terms of the device's logical block size. |
| 734 | */ |
| 735 | if (lp->d_secsize == DEV_BSIZE) |
| 736 | blkno = bp->b_blkno; |
| 737 | else if (lp->d_secsize > DEV_BSIZE) |
| 738 | blkno = bp->b_blkno / (lp->d_secsize / DEV_BSIZE); |
| 739 | else |
| 740 | blkno = bp->b_blkno * (DEV_BSIZE / lp->d_secsize); |
| 741 | |
| 742 | if (SDPART(bp->b_dev) != RAW_PART) |
| 743 | blkno += lp->d_partitions[SDPART(bp->b_dev)].p_offset; |
| 744 | |
| 745 | bp->b_rawblkno = blkno; |
| 746 | |
| 747 | mutex_enter(chan_mtx(chan)); |
| 748 | |
| 749 | /* |
| 750 | * Place it in the queue of disk activities for this disk. |
| 751 | * |
| 752 | * XXX Only do disksort() if the current operating mode does not |
| 753 | * XXX include tagged queueing. |
| 754 | */ |
| 755 | bufq_put(sd->buf_queue, bp); |
| 756 | |
| 757 | /* |
| 758 | * Tell the device to get going on the transfer if it's |
| 759 | * not doing anything, otherwise just wait for completion |
| 760 | */ |
| 761 | sdstart(periph); |
| 762 | |
| 763 | mutex_exit(chan_mtx(chan)); |
| 764 | return; |
| 765 | |
| 766 | done: |
| 767 | /* |
| 768 | * Correctly set the buf to indicate a completed xfer |
| 769 | */ |
| 770 | bp->b_resid = bp->b_bcount; |
| 771 | biodone(bp); |
| 772 | } |
| 773 | |
| 774 | /* |
| 775 | * sdstart looks to see if there is a buf waiting for the device |
| 776 | * and that the device is not already busy. If both are true, |
| 777 | * It dequeues the buf and creates a scsi command to perform the |
| 778 | * transfer in the buf. The transfer request will call scsipi_done |
| 779 | * on completion, which will in turn call this routine again |
| 780 | * so that the next queued transfer is performed. |
| 781 | * The bufs are queued by the strategy routine (sdstrategy) |
| 782 | * |
| 783 | * This routine is also called after other non-queued requests |
| 784 | * have been made of the scsi driver, to ensure that the queue |
| 785 | * continues to be drained. |
| 786 | * |
| 787 | * must be called with channel lock held |
| 788 | * sdstart() is called from sdstrategy, sdrestart and scsipi_done |
| 789 | */ |
| 790 | static void |
| 791 | sdstart(struct scsipi_periph *periph) |
| 792 | { |
| 793 | struct sd_softc *sd = device_private(periph->periph_dev); |
| 794 | struct disklabel *lp = sd->sc_dk.dk_label; |
| 795 | struct buf *bp = 0; |
| 796 | struct scsipi_rw_16 cmd16; |
| 797 | struct scsipi_rw_10 cmd_big; |
| 798 | struct scsi_rw_6 cmd_small; |
| 799 | struct scsipi_generic *cmdp; |
| 800 | struct scsipi_xfer *xs; |
| 801 | int nblks, cmdlen, error __diagused, flags; |
| 802 | |
| 803 | SC_DEBUG(periph, SCSIPI_DB2, ("sdstart " )); |
| 804 | |
| 805 | /* |
| 806 | * Check if the device has room for another command |
| 807 | */ |
| 808 | while (periph->periph_active < periph->periph_openings) { |
| 809 | /* |
| 810 | * there is excess capacity, but a special waits |
| 811 | * It'll need the adapter as soon as we clear out of the |
| 812 | * way and let it run (user level wait). |
| 813 | */ |
| 814 | if (periph->periph_flags & PERIPH_WAITING) { |
| 815 | periph->periph_flags &= ~PERIPH_WAITING; |
| 816 | cv_broadcast(periph_cv_periph(periph)); |
| 817 | return; |
| 818 | } |
| 819 | |
| 820 | /* |
| 821 | * If the device has become invalid, abort all the |
| 822 | * reads and writes until all files have been closed and |
| 823 | * re-opened |
| 824 | */ |
| 825 | if (__predict_false( |
| 826 | (periph->periph_flags & PERIPH_MEDIA_LOADED) == 0)) { |
| 827 | if ((bp = bufq_get(sd->buf_queue)) != NULL) { |
| 828 | bp->b_error = EIO; |
| 829 | bp->b_resid = bp->b_bcount; |
| 830 | biodone(bp); |
| 831 | continue; |
| 832 | } else { |
| 833 | return; |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | /* |
| 838 | * See if there is a buf with work for us to do.. |
| 839 | */ |
| 840 | if ((bp = bufq_peek(sd->buf_queue)) == NULL) |
| 841 | return; |
| 842 | |
| 843 | /* |
| 844 | * We have a buf, now we should make a command. |
| 845 | */ |
| 846 | |
| 847 | if (lp->d_secsize == DEV_BSIZE) |
| 848 | nblks = bp->b_bcount >> DEV_BSHIFT; |
| 849 | else |
| 850 | nblks = howmany(bp->b_bcount, lp->d_secsize); |
| 851 | |
| 852 | /* |
| 853 | * Fill out the scsi command. Use the smallest CDB possible |
| 854 | * (6-byte, 10-byte, or 16-byte). |
| 855 | */ |
| 856 | if (((bp->b_rawblkno & 0x1fffff) == bp->b_rawblkno) && |
| 857 | ((nblks & 0xff) == nblks) && |
| 858 | !(periph->periph_quirks & PQUIRK_ONLYBIG)) { |
| 859 | /* 6-byte CDB */ |
| 860 | memset(&cmd_small, 0, sizeof(cmd_small)); |
| 861 | cmd_small.opcode = (bp->b_flags & B_READ) ? |
| 862 | SCSI_READ_6_COMMAND : SCSI_WRITE_6_COMMAND; |
| 863 | _lto3b(bp->b_rawblkno, cmd_small.addr); |
| 864 | cmd_small.length = nblks & 0xff; |
| 865 | cmdlen = sizeof(cmd_small); |
| 866 | cmdp = (struct scsipi_generic *)&cmd_small; |
| 867 | } else if ((bp->b_rawblkno & 0xffffffff) == bp->b_rawblkno) { |
| 868 | /* 10-byte CDB */ |
| 869 | memset(&cmd_big, 0, sizeof(cmd_big)); |
| 870 | cmd_big.opcode = (bp->b_flags & B_READ) ? |
| 871 | READ_10 : WRITE_10; |
| 872 | _lto4b(bp->b_rawblkno, cmd_big.addr); |
| 873 | _lto2b(nblks, cmd_big.length); |
| 874 | cmdlen = sizeof(cmd_big); |
| 875 | cmdp = (struct scsipi_generic *)&cmd_big; |
| 876 | } else { |
| 877 | /* 16-byte CDB */ |
| 878 | memset(&cmd16, 0, sizeof(cmd16)); |
| 879 | cmd16.opcode = (bp->b_flags & B_READ) ? |
| 880 | READ_16 : WRITE_16; |
| 881 | _lto8b(bp->b_rawblkno, cmd16.addr); |
| 882 | _lto4b(nblks, cmd16.length); |
| 883 | cmdlen = sizeof(cmd16); |
| 884 | cmdp = (struct scsipi_generic *)&cmd16; |
| 885 | } |
| 886 | |
| 887 | /* Instrumentation. */ |
| 888 | disk_busy(&sd->sc_dk); |
| 889 | |
| 890 | /* |
| 891 | * Mark the disk dirty so that the cache will be |
| 892 | * flushed on close. |
| 893 | */ |
| 894 | if ((bp->b_flags & B_READ) == 0) |
| 895 | sd->flags |= SDF_DIRTY; |
| 896 | |
| 897 | /* |
| 898 | * Figure out what flags to use. |
| 899 | */ |
| 900 | flags = XS_CTL_NOSLEEP|XS_CTL_ASYNC|XS_CTL_SIMPLE_TAG; |
| 901 | if (bp->b_flags & B_READ) |
| 902 | flags |= XS_CTL_DATA_IN; |
| 903 | else |
| 904 | flags |= XS_CTL_DATA_OUT; |
| 905 | |
| 906 | /* |
| 907 | * Call the routine that chats with the adapter. |
| 908 | * Note: we cannot sleep as we may be an interrupt |
| 909 | */ |
| 910 | xs = scsipi_make_xs_locked(periph, cmdp, cmdlen, |
| 911 | (u_char *)bp->b_data, bp->b_bcount, |
| 912 | SDRETRIES, SD_IO_TIMEOUT, bp, flags); |
| 913 | if (__predict_false(xs == NULL)) { |
| 914 | /* |
| 915 | * out of memory. Keep this buffer in the queue, and |
| 916 | * retry later. |
| 917 | */ |
| 918 | callout_reset(&sd->sc_callout, hz / 2, sdrestart, |
| 919 | periph); |
| 920 | return; |
| 921 | } |
| 922 | /* |
| 923 | * need to dequeue the buffer before queuing the command, |
| 924 | * because cdstart may be called recursively from the |
| 925 | * HBA driver |
| 926 | */ |
| 927 | #ifdef DIAGNOSTIC |
| 928 | if (bufq_get(sd->buf_queue) != bp) |
| 929 | panic("sdstart(): dequeued wrong buf" ); |
| 930 | #else |
| 931 | bufq_get(sd->buf_queue); |
| 932 | #endif |
| 933 | error = scsipi_execute_xs(xs); |
| 934 | /* with a scsipi_xfer preallocated, scsipi_command can't fail */ |
| 935 | KASSERT(error == 0); |
| 936 | } |
| 937 | } |
| 938 | |
| 939 | static void |
| 940 | sdrestart(void *v) |
| 941 | { |
| 942 | struct scsipi_periph *periph = v; |
| 943 | struct scsipi_channel *chan = periph->periph_channel; |
| 944 | |
| 945 | mutex_enter(chan_mtx(chan)); |
| 946 | sdstart((struct scsipi_periph *)v); |
| 947 | mutex_exit(chan_mtx(chan)); |
| 948 | } |
| 949 | |
| 950 | static void |
| 951 | sddone(struct scsipi_xfer *xs, int error) |
| 952 | { |
| 953 | struct sd_softc *sd = device_private(xs->xs_periph->periph_dev); |
| 954 | struct buf *bp = xs->bp; |
| 955 | |
| 956 | if (sd->flags & SDF_FLUSHING) { |
| 957 | /* Flush completed, no longer dirty. */ |
| 958 | sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY); |
| 959 | } |
| 960 | |
| 961 | if (bp) { |
| 962 | bp->b_error = error; |
| 963 | bp->b_resid = xs->resid; |
| 964 | if (error) { |
| 965 | /* on a read/write error bp->b_resid is zero, so fix */ |
| 966 | bp->b_resid = bp->b_bcount; |
| 967 | } |
| 968 | |
| 969 | disk_unbusy(&sd->sc_dk, bp->b_bcount - bp->b_resid, |
| 970 | (bp->b_flags & B_READ)); |
| 971 | rnd_add_uint32(&sd->rnd_source, bp->b_rawblkno); |
| 972 | |
| 973 | biodone(bp); |
| 974 | } |
| 975 | } |
| 976 | |
| 977 | static void |
| 978 | sdminphys(struct buf *bp) |
| 979 | { |
| 980 | struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(bp->b_dev)); |
| 981 | long xmax; |
| 982 | |
| 983 | /* |
| 984 | * If the device is ancient, we want to make sure that |
| 985 | * the transfer fits into a 6-byte cdb. |
| 986 | * |
| 987 | * XXX Note that the SCSI-I spec says that 256-block transfers |
| 988 | * are allowed in a 6-byte read/write, and are specified |
| 989 | * by settng the "length" to 0. However, we're conservative |
| 990 | * here, allowing only 255-block transfers in case an |
| 991 | * ancient device gets confused by length == 0. A length of 0 |
| 992 | * in a 10-byte read/write actually means 0 blocks. |
| 993 | */ |
| 994 | if ((sd->flags & SDF_ANCIENT) && |
| 995 | ((sd->sc_periph->periph_flags & |
| 996 | (PERIPH_REMOVABLE | PERIPH_MEDIA_LOADED)) != PERIPH_REMOVABLE)) { |
| 997 | xmax = sd->sc_dk.dk_label->d_secsize * 0xff; |
| 998 | |
| 999 | if (bp->b_bcount > xmax) |
| 1000 | bp->b_bcount = xmax; |
| 1001 | } |
| 1002 | |
| 1003 | scsipi_adapter_minphys(sd->sc_periph->periph_channel, bp); |
| 1004 | } |
| 1005 | |
| 1006 | static int |
| 1007 | sdread(dev_t dev, struct uio *uio, int ioflag) |
| 1008 | { |
| 1009 | |
| 1010 | return (physio(sdstrategy, NULL, dev, B_READ, sdminphys, uio)); |
| 1011 | } |
| 1012 | |
| 1013 | static int |
| 1014 | sdwrite(dev_t dev, struct uio *uio, int ioflag) |
| 1015 | { |
| 1016 | |
| 1017 | return (physio(sdstrategy, NULL, dev, B_WRITE, sdminphys, uio)); |
| 1018 | } |
| 1019 | |
| 1020 | /* |
| 1021 | * Perform special action on behalf of the user |
| 1022 | * Knows about the internals of this device |
| 1023 | */ |
| 1024 | static int |
| 1025 | sdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) |
| 1026 | { |
| 1027 | struct sd_softc *sd = device_lookup_private(&sd_cd, SDUNIT(dev)); |
| 1028 | struct scsipi_periph *periph = sd->sc_periph; |
| 1029 | int part = SDPART(dev); |
| 1030 | int error; |
| 1031 | #ifdef __HAVE_OLD_DISKLABEL |
| 1032 | struct disklabel *newlabel = NULL; |
| 1033 | #endif |
| 1034 | |
| 1035 | SC_DEBUG(sd->sc_periph, SCSIPI_DB2, ("sdioctl 0x%lx " , cmd)); |
| 1036 | |
| 1037 | /* |
| 1038 | * If the device is not valid, some IOCTLs can still be |
| 1039 | * handled on the raw partition. Check this here. |
| 1040 | */ |
| 1041 | if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) { |
| 1042 | switch (cmd) { |
| 1043 | case DIOCKLABEL: |
| 1044 | case DIOCWLABEL: |
| 1045 | case DIOCLOCK: |
| 1046 | case DIOCEJECT: |
| 1047 | case ODIOCEJECT: |
| 1048 | case DIOCGCACHE: |
| 1049 | case DIOCSCACHE: |
| 1050 | case DIOCGSTRATEGY: |
| 1051 | case DIOCSSTRATEGY: |
| 1052 | case SCIOCIDENTIFY: |
| 1053 | case OSCIOCIDENTIFY: |
| 1054 | case SCIOCCOMMAND: |
| 1055 | case SCIOCDEBUG: |
| 1056 | if (part == RAW_PART) |
| 1057 | break; |
| 1058 | /* FALLTHROUGH */ |
| 1059 | default: |
| 1060 | if ((periph->periph_flags & PERIPH_OPEN) == 0) |
| 1061 | return (ENODEV); |
| 1062 | else |
| 1063 | return (EIO); |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | error = disk_ioctl(&sd->sc_dk, dev, cmd, addr, flag, l); |
| 1068 | if (error != EPASSTHROUGH) |
| 1069 | return (error); |
| 1070 | |
| 1071 | error = 0; |
| 1072 | switch (cmd) { |
| 1073 | case DIOCWDINFO: |
| 1074 | case DIOCSDINFO: |
| 1075 | #ifdef __HAVE_OLD_DISKLABEL |
| 1076 | case ODIOCWDINFO: |
| 1077 | case ODIOCSDINFO: |
| 1078 | #endif |
| 1079 | { |
| 1080 | struct disklabel *lp; |
| 1081 | |
| 1082 | if ((flag & FWRITE) == 0) |
| 1083 | return (EBADF); |
| 1084 | |
| 1085 | #ifdef __HAVE_OLD_DISKLABEL |
| 1086 | if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { |
| 1087 | newlabel = malloc(sizeof *newlabel, M_TEMP, |
| 1088 | M_WAITOK | M_ZERO); |
| 1089 | if (newlabel == NULL) |
| 1090 | return EIO; |
| 1091 | memcpy(newlabel, addr, sizeof (struct olddisklabel)); |
| 1092 | lp = newlabel; |
| 1093 | } else |
| 1094 | #endif |
| 1095 | lp = (struct disklabel *)addr; |
| 1096 | |
| 1097 | mutex_enter(&sd->sc_dk.dk_openlock); |
| 1098 | sd->flags |= SDF_LABELLING; |
| 1099 | |
| 1100 | error = setdisklabel(sd->sc_dk.dk_label, |
| 1101 | lp, /*sd->sc_dk.dk_openmask : */0, |
| 1102 | sd->sc_dk.dk_cpulabel); |
| 1103 | if (error == 0) { |
| 1104 | if (cmd == DIOCWDINFO |
| 1105 | #ifdef __HAVE_OLD_DISKLABEL |
| 1106 | || cmd == ODIOCWDINFO |
| 1107 | #endif |
| 1108 | ) |
| 1109 | error = writedisklabel(SDLABELDEV(dev), |
| 1110 | sdstrategy, sd->sc_dk.dk_label, |
| 1111 | sd->sc_dk.dk_cpulabel); |
| 1112 | } |
| 1113 | |
| 1114 | sd->flags &= ~SDF_LABELLING; |
| 1115 | mutex_exit(&sd->sc_dk.dk_openlock); |
| 1116 | #ifdef __HAVE_OLD_DISKLABEL |
| 1117 | if (newlabel != NULL) |
| 1118 | free(newlabel, M_TEMP); |
| 1119 | #endif |
| 1120 | return (error); |
| 1121 | } |
| 1122 | |
| 1123 | case DIOCKLABEL: |
| 1124 | if (*(int *)addr) |
| 1125 | periph->periph_flags |= PERIPH_KEEP_LABEL; |
| 1126 | else |
| 1127 | periph->periph_flags &= ~PERIPH_KEEP_LABEL; |
| 1128 | return (0); |
| 1129 | |
| 1130 | case DIOCWLABEL: |
| 1131 | if ((flag & FWRITE) == 0) |
| 1132 | return (EBADF); |
| 1133 | if (*(int *)addr) |
| 1134 | sd->flags |= SDF_WLABEL; |
| 1135 | else |
| 1136 | sd->flags &= ~SDF_WLABEL; |
| 1137 | return (0); |
| 1138 | |
| 1139 | case DIOCLOCK: |
| 1140 | if (periph->periph_flags & PERIPH_REMOVABLE) |
| 1141 | return (scsipi_prevent(periph, |
| 1142 | (*(int *)addr) ? |
| 1143 | SPAMR_PREVENT_DT : SPAMR_ALLOW, 0)); |
| 1144 | else |
| 1145 | return (ENOTTY); |
| 1146 | |
| 1147 | case DIOCEJECT: |
| 1148 | if ((periph->periph_flags & PERIPH_REMOVABLE) == 0) |
| 1149 | return (ENOTTY); |
| 1150 | if (*(int *)addr == 0) { |
| 1151 | /* |
| 1152 | * Don't force eject: check that we are the only |
| 1153 | * partition open. If so, unlock it. |
| 1154 | */ |
| 1155 | if ((sd->sc_dk.dk_openmask & ~(1 << part)) == 0 && |
| 1156 | sd->sc_dk.dk_bopenmask + sd->sc_dk.dk_copenmask == |
| 1157 | sd->sc_dk.dk_openmask) { |
| 1158 | error = scsipi_prevent(periph, SPAMR_ALLOW, |
| 1159 | XS_CTL_IGNORE_NOT_READY); |
| 1160 | if (error) |
| 1161 | return (error); |
| 1162 | } else { |
| 1163 | return (EBUSY); |
| 1164 | } |
| 1165 | } |
| 1166 | /* FALLTHROUGH */ |
| 1167 | case ODIOCEJECT: |
| 1168 | return ((periph->periph_flags & PERIPH_REMOVABLE) == 0 ? |
| 1169 | ENOTTY : scsipi_start(periph, SSS_STOP|SSS_LOEJ, 0)); |
| 1170 | |
| 1171 | case DIOCGDEFLABEL: |
| 1172 | sdgetdefaultlabel(sd, (struct disklabel *)addr); |
| 1173 | return (0); |
| 1174 | |
| 1175 | #ifdef __HAVE_OLD_DISKLABEL |
| 1176 | case ODIOCGDEFLABEL: |
| 1177 | newlabel = malloc(sizeof *newlabel, M_TEMP, M_WAITOK); |
| 1178 | if (newlabel == NULL) |
| 1179 | return EIO; |
| 1180 | sdgetdefaultlabel(sd, newlabel); |
| 1181 | if (newlabel->d_npartitions <= OLDMAXPARTITIONS) |
| 1182 | memcpy(addr, newlabel, sizeof (struct olddisklabel)); |
| 1183 | else |
| 1184 | error = ENOTTY; |
| 1185 | free(newlabel, M_TEMP); |
| 1186 | return error; |
| 1187 | #endif |
| 1188 | |
| 1189 | case DIOCGCACHE: |
| 1190 | return (sd_getcache(sd, (int *) addr)); |
| 1191 | |
| 1192 | case DIOCSCACHE: |
| 1193 | if ((flag & FWRITE) == 0) |
| 1194 | return (EBADF); |
| 1195 | return (sd_setcache(sd, *(int *) addr)); |
| 1196 | |
| 1197 | case DIOCCACHESYNC: |
| 1198 | /* |
| 1199 | * XXX Do we really need to care about having a writable |
| 1200 | * file descriptor here? |
| 1201 | */ |
| 1202 | if ((flag & FWRITE) == 0) |
| 1203 | return (EBADF); |
| 1204 | if (((sd->flags & SDF_DIRTY) != 0 || *(int *)addr != 0)) { |
| 1205 | error = sd_flush(sd, 0); |
| 1206 | if (error) |
| 1207 | sd->flags &= ~SDF_FLUSHING; |
| 1208 | else |
| 1209 | sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY); |
| 1210 | } |
| 1211 | return (error); |
| 1212 | |
| 1213 | case DIOCGSTRATEGY: |
| 1214 | { |
| 1215 | struct disk_strategy *dks = addr; |
| 1216 | int s; |
| 1217 | |
| 1218 | s = splbio(); |
| 1219 | strlcpy(dks->dks_name, bufq_getstrategyname(sd->buf_queue), |
| 1220 | sizeof(dks->dks_name)); |
| 1221 | splx(s); |
| 1222 | dks->dks_paramlen = 0; |
| 1223 | |
| 1224 | return 0; |
| 1225 | } |
| 1226 | |
| 1227 | case DIOCSSTRATEGY: |
| 1228 | { |
| 1229 | struct disk_strategy *dks = addr; |
| 1230 | struct bufq_state *new_bufq; |
| 1231 | struct bufq_state *old_bufq; |
| 1232 | int s; |
| 1233 | |
| 1234 | if ((flag & FWRITE) == 0) { |
| 1235 | return EBADF; |
| 1236 | } |
| 1237 | |
| 1238 | if (dks->dks_param != NULL) { |
| 1239 | return EINVAL; |
| 1240 | } |
| 1241 | dks->dks_name[sizeof(dks->dks_name) - 1] = 0; /* ensure term */ |
| 1242 | error = bufq_alloc(&new_bufq, dks->dks_name, |
| 1243 | BUFQ_EXACT|BUFQ_SORT_RAWBLOCK); |
| 1244 | if (error) { |
| 1245 | return error; |
| 1246 | } |
| 1247 | s = splbio(); |
| 1248 | old_bufq = sd->buf_queue; |
| 1249 | bufq_move(new_bufq, old_bufq); |
| 1250 | sd->buf_queue = new_bufq; |
| 1251 | splx(s); |
| 1252 | bufq_free(old_bufq); |
| 1253 | |
| 1254 | return 0; |
| 1255 | } |
| 1256 | |
| 1257 | default: |
| 1258 | if (part != RAW_PART) |
| 1259 | return (ENOTTY); |
| 1260 | return (scsipi_do_ioctl(periph, dev, cmd, addr, flag, l)); |
| 1261 | } |
| 1262 | |
| 1263 | #ifdef DIAGNOSTIC |
| 1264 | panic("sdioctl: impossible" ); |
| 1265 | #endif |
| 1266 | } |
| 1267 | |
| 1268 | static void |
| 1269 | sdgetdefaultlabel(struct sd_softc *sd, struct disklabel *lp) |
| 1270 | { |
| 1271 | |
| 1272 | memset(lp, 0, sizeof(struct disklabel)); |
| 1273 | |
| 1274 | lp->d_secsize = sd->params.blksize; |
| 1275 | lp->d_ntracks = sd->params.heads; |
| 1276 | lp->d_nsectors = sd->params.sectors; |
| 1277 | lp->d_ncylinders = sd->params.cyls; |
| 1278 | lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; |
| 1279 | |
| 1280 | switch (SCSIPI_BUSTYPE_TYPE(scsipi_periph_bustype(sd->sc_periph))) { |
| 1281 | case SCSIPI_BUSTYPE_SCSI: |
| 1282 | lp->d_type = DKTYPE_SCSI; |
| 1283 | break; |
| 1284 | case SCSIPI_BUSTYPE_ATAPI: |
| 1285 | lp->d_type = DKTYPE_ATAPI; |
| 1286 | break; |
| 1287 | } |
| 1288 | /* |
| 1289 | * XXX |
| 1290 | * We could probe the mode pages to figure out what kind of disc it is. |
| 1291 | * Is this worthwhile? |
| 1292 | */ |
| 1293 | strncpy(lp->d_typename, sd->name, 16); |
| 1294 | strncpy(lp->d_packname, "fictitious" , 16); |
| 1295 | if (sd->params.disksize > UINT32_MAX) |
| 1296 | lp->d_secperunit = UINT32_MAX; |
| 1297 | else |
| 1298 | lp->d_secperunit = sd->params.disksize; |
| 1299 | lp->d_rpm = sd->params.rot_rate; |
| 1300 | lp->d_interleave = 1; |
| 1301 | lp->d_flags = sd->sc_periph->periph_flags & PERIPH_REMOVABLE ? |
| 1302 | D_REMOVABLE : 0; |
| 1303 | |
| 1304 | lp->d_partitions[RAW_PART].p_offset = 0; |
| 1305 | lp->d_partitions[RAW_PART].p_size = lp->d_secperunit; |
| 1306 | lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; |
| 1307 | lp->d_npartitions = RAW_PART + 1; |
| 1308 | |
| 1309 | lp->d_magic = DISKMAGIC; |
| 1310 | lp->d_magic2 = DISKMAGIC; |
| 1311 | lp->d_checksum = dkcksum(lp); |
| 1312 | } |
| 1313 | |
| 1314 | |
| 1315 | /* |
| 1316 | * Load the label information on the named device |
| 1317 | */ |
| 1318 | static int |
| 1319 | sdgetdisklabel(struct sd_softc *sd) |
| 1320 | { |
| 1321 | struct disklabel *lp = sd->sc_dk.dk_label; |
| 1322 | const char *errstring; |
| 1323 | |
| 1324 | memset(sd->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); |
| 1325 | |
| 1326 | sdgetdefaultlabel(sd, lp); |
| 1327 | |
| 1328 | if (lp->d_secpercyl == 0) { |
| 1329 | lp->d_secpercyl = 100; |
| 1330 | /* as long as it's not 0 - readdisklabel divides by it (?) */ |
| 1331 | } |
| 1332 | |
| 1333 | /* |
| 1334 | * Call the generic disklabel extraction routine |
| 1335 | */ |
| 1336 | errstring = readdisklabel(MAKESDDEV(0, device_unit(sd->sc_dev), |
| 1337 | RAW_PART), sdstrategy, lp, sd->sc_dk.dk_cpulabel); |
| 1338 | if (errstring) { |
| 1339 | aprint_error_dev(sd->sc_dev, "%s\n" , errstring); |
| 1340 | return EIO; |
| 1341 | } |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | static bool |
| 1346 | sd_shutdown(device_t self, int how) |
| 1347 | { |
| 1348 | struct sd_softc *sd = device_private(self); |
| 1349 | |
| 1350 | /* |
| 1351 | * If the disk cache needs to be flushed, and the disk supports |
| 1352 | * it, flush it. We're cold at this point, so we poll for |
| 1353 | * completion. |
| 1354 | */ |
| 1355 | if ((sd->flags & SDF_DIRTY) != 0) { |
| 1356 | if (sd_flush(sd, XS_CTL_NOSLEEP|XS_CTL_POLL)) { |
| 1357 | aprint_error_dev(sd->sc_dev, |
| 1358 | "cache synchronization failed\n" ); |
| 1359 | sd->flags &= ~SDF_FLUSHING; |
| 1360 | } else |
| 1361 | sd->flags &= ~(SDF_FLUSHING|SDF_DIRTY); |
| 1362 | } |
| 1363 | return true; |
| 1364 | } |
| 1365 | |
| 1366 | static bool |
| 1367 | sd_suspend(device_t dv, const pmf_qual_t *qual) |
| 1368 | { |
| 1369 | return sd_shutdown(dv, boothowto); /* XXX no need to poll */ |
| 1370 | } |
| 1371 | |
| 1372 | /* |
| 1373 | * Check Errors |
| 1374 | */ |
| 1375 | static int |
| 1376 | sd_interpret_sense(struct scsipi_xfer *xs) |
| 1377 | { |
| 1378 | struct scsipi_periph *periph = xs->xs_periph; |
| 1379 | struct scsipi_channel *chan = periph->periph_channel; |
| 1380 | struct scsi_sense_data *sense = &xs->sense.scsi_sense; |
| 1381 | struct sd_softc *sd = device_private(periph->periph_dev); |
| 1382 | int error, retval = EJUSTRETURN; |
| 1383 | |
| 1384 | /* |
| 1385 | * If the periph is already recovering, just do the normal |
| 1386 | * error processing. |
| 1387 | */ |
| 1388 | if (periph->periph_flags & PERIPH_RECOVERING) |
| 1389 | return (retval); |
| 1390 | |
| 1391 | /* |
| 1392 | * Ignore errors from accessing illegal fields (e.g. trying to |
| 1393 | * lock the door of a digicam, which doesn't have a door that |
| 1394 | * can be locked) for the SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL command. |
| 1395 | */ |
| 1396 | if (xs->cmd->opcode == SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL && |
| 1397 | SSD_SENSE_KEY(sense->flags) == SKEY_ILLEGAL_REQUEST && |
| 1398 | sense->asc == 0x24 && |
| 1399 | sense->ascq == 0x00) { /* Illegal field in CDB */ |
| 1400 | if (!(xs->xs_control & XS_CTL_SILENT)) { |
| 1401 | scsipi_printaddr(periph); |
| 1402 | printf("no door lock\n" ); |
| 1403 | } |
| 1404 | xs->xs_control |= XS_CTL_IGNORE_ILLEGAL_REQUEST; |
| 1405 | return (retval); |
| 1406 | } |
| 1407 | |
| 1408 | |
| 1409 | |
| 1410 | /* |
| 1411 | * If the device is not open yet, let the generic code handle it. |
| 1412 | */ |
| 1413 | if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) |
| 1414 | return (retval); |
| 1415 | |
| 1416 | /* |
| 1417 | * If it isn't a extended or extended/deferred error, let |
| 1418 | * the generic code handle it. |
| 1419 | */ |
| 1420 | if (SSD_RCODE(sense->response_code) != SSD_RCODE_CURRENT && |
| 1421 | SSD_RCODE(sense->response_code) != SSD_RCODE_DEFERRED) |
| 1422 | return (retval); |
| 1423 | |
| 1424 | if (SSD_SENSE_KEY(sense->flags) == SKEY_NOT_READY && |
| 1425 | sense->asc == 0x4) { |
| 1426 | if (sense->ascq == 0x01) { |
| 1427 | /* |
| 1428 | * Unit In The Process Of Becoming Ready. |
| 1429 | */ |
| 1430 | printf("%s: waiting for pack to spin up...\n" , |
| 1431 | device_xname(sd->sc_dev)); |
| 1432 | if (!callout_pending(&periph->periph_callout)) |
| 1433 | scsipi_periph_freeze(periph, 1); |
| 1434 | callout_reset(&periph->periph_callout, |
| 1435 | 5 * hz, scsipi_periph_timed_thaw, periph); |
| 1436 | retval = ERESTART; |
| 1437 | } else if (sense->ascq == 0x02) { |
| 1438 | printf("%s: pack is stopped, restarting...\n" , |
| 1439 | device_xname(sd->sc_dev)); |
| 1440 | mutex_enter(chan_mtx(chan)); |
| 1441 | periph->periph_flags |= PERIPH_RECOVERING; |
| 1442 | mutex_exit(chan_mtx(chan)); |
| 1443 | error = scsipi_start(periph, SSS_START, |
| 1444 | XS_CTL_URGENT|XS_CTL_HEAD_TAG| |
| 1445 | XS_CTL_THAW_PERIPH|XS_CTL_FREEZE_PERIPH); |
| 1446 | if (error) { |
| 1447 | aprint_error_dev(sd->sc_dev, |
| 1448 | "unable to restart pack\n" ); |
| 1449 | retval = error; |
| 1450 | } else |
| 1451 | retval = ERESTART; |
| 1452 | mutex_enter(chan_mtx(chan)); |
| 1453 | periph->periph_flags &= ~PERIPH_RECOVERING; |
| 1454 | mutex_exit(chan_mtx(chan)); |
| 1455 | } |
| 1456 | } |
| 1457 | if (SSD_SENSE_KEY(sense->flags) == SKEY_MEDIUM_ERROR && |
| 1458 | sense->asc == 0x31 && |
| 1459 | sense->ascq == 0x00) { /* maybe for any asq ? */ |
| 1460 | /* Medium Format Corrupted */ |
| 1461 | retval = EFTYPE; |
| 1462 | } |
| 1463 | return (retval); |
| 1464 | } |
| 1465 | |
| 1466 | |
| 1467 | static int |
| 1468 | sdsize(dev_t dev) |
| 1469 | { |
| 1470 | struct sd_softc *sd; |
| 1471 | int part, unit, omask; |
| 1472 | int size; |
| 1473 | |
| 1474 | unit = SDUNIT(dev); |
| 1475 | sd = device_lookup_private(&sd_cd, unit); |
| 1476 | if (sd == NULL) |
| 1477 | return (-1); |
| 1478 | |
| 1479 | if (!device_is_active(sd->sc_dev)) |
| 1480 | return (-1); |
| 1481 | |
| 1482 | part = SDPART(dev); |
| 1483 | omask = sd->sc_dk.dk_openmask & (1 << part); |
| 1484 | |
| 1485 | if (omask == 0 && sdopen(dev, 0, S_IFBLK, NULL) != 0) |
| 1486 | return (-1); |
| 1487 | if ((sd->sc_periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) |
| 1488 | size = -1; |
| 1489 | else if (sd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP) |
| 1490 | size = -1; |
| 1491 | else |
| 1492 | size = sd->sc_dk.dk_label->d_partitions[part].p_size * |
| 1493 | (sd->sc_dk.dk_label->d_secsize / DEV_BSIZE); |
| 1494 | if (omask == 0 && sdclose(dev, 0, S_IFBLK, NULL) != 0) |
| 1495 | return (-1); |
| 1496 | return (size); |
| 1497 | } |
| 1498 | |
| 1499 | /* #define SD_DUMP_NOT_TRUSTED if you just want to watch */ |
| 1500 | static struct scsipi_xfer sx; |
| 1501 | static int sddoingadump; |
| 1502 | |
| 1503 | /* |
| 1504 | * dump all of physical memory into the partition specified, starting |
| 1505 | * at offset 'dumplo' into the partition. |
| 1506 | */ |
| 1507 | static int |
| 1508 | sddump(dev_t dev, daddr_t blkno, void *va, size_t size) |
| 1509 | { |
| 1510 | struct sd_softc *sd; /* disk unit to do the I/O */ |
| 1511 | struct disklabel *lp; /* disk's disklabel */ |
| 1512 | int unit, part; |
| 1513 | int sectorsize; /* size of a disk sector */ |
| 1514 | int nsects; /* number of sectors in partition */ |
| 1515 | int sectoff; /* sector offset of partition */ |
| 1516 | int totwrt; /* total number of sectors left to write */ |
| 1517 | int nwrt; /* current number of sectors to write */ |
| 1518 | struct scsipi_rw_10 cmd; /* write command */ |
| 1519 | struct scsipi_xfer *xs; /* ... convenience */ |
| 1520 | struct scsipi_periph *periph; |
| 1521 | struct scsipi_channel *chan; |
| 1522 | |
| 1523 | /* Check if recursive dump; if so, punt. */ |
| 1524 | if (sddoingadump) |
| 1525 | return (EFAULT); |
| 1526 | |
| 1527 | /* Mark as active early. */ |
| 1528 | sddoingadump = 1; |
| 1529 | |
| 1530 | unit = SDUNIT(dev); /* Decompose unit & partition. */ |
| 1531 | part = SDPART(dev); |
| 1532 | |
| 1533 | /* Check for acceptable drive number. */ |
| 1534 | sd = device_lookup_private(&sd_cd, unit); |
| 1535 | if (sd == NULL) |
| 1536 | return (ENXIO); |
| 1537 | |
| 1538 | if (!device_is_active(sd->sc_dev)) |
| 1539 | return (ENODEV); |
| 1540 | |
| 1541 | periph = sd->sc_periph; |
| 1542 | chan = periph->periph_channel; |
| 1543 | |
| 1544 | /* Make sure it was initialized. */ |
| 1545 | if ((periph->periph_flags & PERIPH_MEDIA_LOADED) == 0) |
| 1546 | return (ENXIO); |
| 1547 | |
| 1548 | /* Convert to disk sectors. Request must be a multiple of size. */ |
| 1549 | lp = sd->sc_dk.dk_label; |
| 1550 | sectorsize = lp->d_secsize; |
| 1551 | if ((size % sectorsize) != 0) |
| 1552 | return (EFAULT); |
| 1553 | totwrt = size / sectorsize; |
| 1554 | blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ |
| 1555 | |
| 1556 | nsects = lp->d_partitions[part].p_size; |
| 1557 | sectoff = lp->d_partitions[part].p_offset; |
| 1558 | |
| 1559 | /* Check transfer bounds against partition size. */ |
| 1560 | if ((blkno < 0) || ((blkno + totwrt) > nsects)) |
| 1561 | return (EINVAL); |
| 1562 | |
| 1563 | /* Offset block number to start of partition. */ |
| 1564 | blkno += sectoff; |
| 1565 | |
| 1566 | xs = &sx; |
| 1567 | |
| 1568 | while (totwrt > 0) { |
| 1569 | nwrt = totwrt; /* XXX */ |
| 1570 | #ifndef SD_DUMP_NOT_TRUSTED |
| 1571 | /* |
| 1572 | * Fill out the scsi command |
| 1573 | */ |
| 1574 | memset(&cmd, 0, sizeof(cmd)); |
| 1575 | cmd.opcode = WRITE_10; |
| 1576 | _lto4b(blkno, cmd.addr); |
| 1577 | _lto2b(nwrt, cmd.length); |
| 1578 | /* |
| 1579 | * Fill out the scsipi_xfer structure |
| 1580 | * Note: we cannot sleep as we may be an interrupt |
| 1581 | * don't use scsipi_command() as it may want to wait |
| 1582 | * for an xs. |
| 1583 | */ |
| 1584 | memset(xs, 0, sizeof(sx)); |
| 1585 | xs->xs_control |= XS_CTL_NOSLEEP | XS_CTL_POLL | |
| 1586 | XS_CTL_DATA_OUT; |
| 1587 | xs->xs_status = 0; |
| 1588 | xs->xs_periph = periph; |
| 1589 | xs->xs_retries = SDRETRIES; |
| 1590 | xs->timeout = 10000; /* 10000 millisecs for a disk ! */ |
| 1591 | xs->cmd = (struct scsipi_generic *)&cmd; |
| 1592 | xs->cmdlen = sizeof(cmd); |
| 1593 | xs->resid = nwrt * sectorsize; |
| 1594 | xs->error = XS_NOERROR; |
| 1595 | xs->bp = 0; |
| 1596 | xs->data = va; |
| 1597 | xs->datalen = nwrt * sectorsize; |
| 1598 | callout_init(&xs->xs_callout, 0); |
| 1599 | |
| 1600 | /* |
| 1601 | * Pass all this info to the scsi driver. |
| 1602 | */ |
| 1603 | scsipi_adapter_request(chan, ADAPTER_REQ_RUN_XFER, xs); |
| 1604 | if ((xs->xs_status & XS_STS_DONE) == 0 || |
| 1605 | xs->error != XS_NOERROR) |
| 1606 | return (EIO); |
| 1607 | #else /* SD_DUMP_NOT_TRUSTED */ |
| 1608 | /* Let's just talk about this first... */ |
| 1609 | printf("sd%d: dump addr 0x%x, blk %d\n" , unit, va, blkno); |
| 1610 | delay(500 * 1000); /* half a second */ |
| 1611 | #endif /* SD_DUMP_NOT_TRUSTED */ |
| 1612 | |
| 1613 | /* update block count */ |
| 1614 | totwrt -= nwrt; |
| 1615 | blkno += nwrt; |
| 1616 | va = (char *)va + sectorsize * nwrt; |
| 1617 | } |
| 1618 | sddoingadump = 0; |
| 1619 | return (0); |
| 1620 | } |
| 1621 | |
| 1622 | static int |
| 1623 | sd_mode_sense(struct sd_softc *sd, u_int8_t byte2, void *sense, size_t size, |
| 1624 | int page, int flags, int *big) |
| 1625 | { |
| 1626 | |
| 1627 | if ((sd->sc_periph->periph_quirks & PQUIRK_ONLYBIG) && |
| 1628 | !(sd->sc_periph->periph_quirks & PQUIRK_NOBIGMODESENSE)) { |
| 1629 | *big = 1; |
| 1630 | return scsipi_mode_sense_big(sd->sc_periph, byte2, page, sense, |
| 1631 | size + sizeof(struct scsi_mode_parameter_header_10), |
| 1632 | flags, SDRETRIES, 6000); |
| 1633 | } else { |
| 1634 | *big = 0; |
| 1635 | return scsipi_mode_sense(sd->sc_periph, byte2, page, sense, |
| 1636 | size + sizeof(struct scsi_mode_parameter_header_6), |
| 1637 | flags, SDRETRIES, 6000); |
| 1638 | } |
| 1639 | } |
| 1640 | |
| 1641 | static int |
| 1642 | sd_mode_select(struct sd_softc *sd, u_int8_t byte2, void *sense, size_t size, |
| 1643 | int flags, int big) |
| 1644 | { |
| 1645 | |
| 1646 | if (big) { |
| 1647 | struct scsi_mode_parameter_header_10 * = sense; |
| 1648 | |
| 1649 | _lto2b(0, header->data_length); |
| 1650 | return scsipi_mode_select_big(sd->sc_periph, byte2, sense, |
| 1651 | size + sizeof(struct scsi_mode_parameter_header_10), |
| 1652 | flags, SDRETRIES, 6000); |
| 1653 | } else { |
| 1654 | struct scsi_mode_parameter_header_6 * = sense; |
| 1655 | |
| 1656 | header->data_length = 0; |
| 1657 | return scsipi_mode_select(sd->sc_periph, byte2, sense, |
| 1658 | size + sizeof(struct scsi_mode_parameter_header_6), |
| 1659 | flags, SDRETRIES, 6000); |
| 1660 | } |
| 1661 | } |
| 1662 | |
| 1663 | /* |
| 1664 | * sd_validate_blksize: |
| 1665 | * |
| 1666 | * Validate the block size. Print error if periph is specified, |
| 1667 | */ |
| 1668 | static int |
| 1669 | sd_validate_blksize(struct scsipi_periph *periph, int len) |
| 1670 | { |
| 1671 | |
| 1672 | switch (len) { |
| 1673 | case 256: |
| 1674 | case 512: |
| 1675 | case 1024: |
| 1676 | case 2048: |
| 1677 | case 4096: |
| 1678 | return 1; |
| 1679 | } |
| 1680 | |
| 1681 | if (periph) { |
| 1682 | scsipi_printaddr(periph); |
| 1683 | printf("%s sector size: 0x%x. Defaulting to %d bytes.\n" , |
| 1684 | (len ^ (1 << (ffs(len) - 1))) ? |
| 1685 | "preposterous" : "unsupported" , |
| 1686 | len, SD_DEFAULT_BLKSIZE); |
| 1687 | } |
| 1688 | |
| 1689 | return 0; |
| 1690 | } |
| 1691 | |
| 1692 | /* |
| 1693 | * sd_read_capacity: |
| 1694 | * |
| 1695 | * Find out from the device what its capacity is. |
| 1696 | */ |
| 1697 | static u_int64_t |
| 1698 | sd_read_capacity(struct scsipi_periph *periph, int *blksize, int flags) |
| 1699 | { |
| 1700 | union { |
| 1701 | struct scsipi_read_capacity_10 cmd; |
| 1702 | struct scsipi_read_capacity_16 cmd16; |
| 1703 | } cmd; |
| 1704 | union { |
| 1705 | struct scsipi_read_capacity_10_data data; |
| 1706 | struct scsipi_read_capacity_16_data data16; |
| 1707 | } *datap; |
| 1708 | uint64_t rv; |
| 1709 | |
| 1710 | memset(&cmd, 0, sizeof(cmd)); |
| 1711 | cmd.cmd.opcode = READ_CAPACITY_10; |
| 1712 | |
| 1713 | /* |
| 1714 | * Don't allocate data buffer on stack; |
| 1715 | * The lower driver layer might use the same stack and |
| 1716 | * if it uses region which is in the same cacheline, |
| 1717 | * cache flush ops against the data buffer won't work properly. |
| 1718 | */ |
| 1719 | datap = malloc(sizeof(*datap), M_TEMP, M_WAITOK); |
| 1720 | if (datap == NULL) |
| 1721 | return 0; |
| 1722 | |
| 1723 | /* |
| 1724 | * If the command works, interpret the result as a 4 byte |
| 1725 | * number of blocks |
| 1726 | */ |
| 1727 | rv = 0; |
| 1728 | memset(datap, 0, sizeof(datap->data)); |
| 1729 | if (scsipi_command(periph, (void *)&cmd.cmd, sizeof(cmd.cmd), |
| 1730 | (void *)datap, sizeof(datap->data), SCSIPIRETRIES, 20000, NULL, |
| 1731 | flags | XS_CTL_DATA_IN | XS_CTL_SILENT) != 0) |
| 1732 | goto out; |
| 1733 | |
| 1734 | if (_4btol(datap->data.addr) != 0xffffffff) { |
| 1735 | *blksize = _4btol(datap->data.length); |
| 1736 | rv = _4btol(datap->data.addr) + 1; |
| 1737 | goto out; |
| 1738 | } |
| 1739 | |
| 1740 | /* |
| 1741 | * Device is larger than can be reflected by READ CAPACITY (10). |
| 1742 | * Try READ CAPACITY (16). |
| 1743 | */ |
| 1744 | |
| 1745 | memset(&cmd, 0, sizeof(cmd)); |
| 1746 | cmd.cmd16.opcode = READ_CAPACITY_16; |
| 1747 | cmd.cmd16.byte2 = SRC16_SERVICE_ACTION; |
| 1748 | _lto4b(sizeof(datap->data16), cmd.cmd16.len); |
| 1749 | |
| 1750 | memset(datap, 0, sizeof(datap->data16)); |
| 1751 | if (scsipi_command(periph, (void *)&cmd.cmd16, sizeof(cmd.cmd16), |
| 1752 | (void *)datap, sizeof(datap->data16), SCSIPIRETRIES, 20000, NULL, |
| 1753 | flags | XS_CTL_DATA_IN | XS_CTL_SILENT) != 0) |
| 1754 | goto out; |
| 1755 | |
| 1756 | *blksize = _4btol(datap->data16.length); |
| 1757 | rv = _8btol(datap->data16.addr) + 1; |
| 1758 | |
| 1759 | out: |
| 1760 | free(datap, M_TEMP); |
| 1761 | return rv; |
| 1762 | } |
| 1763 | |
| 1764 | static int |
| 1765 | sd_get_simplifiedparms(struct sd_softc *sd, struct disk_parms *dp, int flags) |
| 1766 | { |
| 1767 | struct { |
| 1768 | struct scsi_mode_parameter_header_6 ; |
| 1769 | /* no block descriptor */ |
| 1770 | u_int8_t pg_code; /* page code (should be 6) */ |
| 1771 | u_int8_t pg_length; /* page length (should be 11) */ |
| 1772 | u_int8_t wcd; /* bit0: cache disable */ |
| 1773 | u_int8_t lbs[2]; /* logical block size */ |
| 1774 | u_int8_t size[5]; /* number of log. blocks */ |
| 1775 | u_int8_t pp; /* power/performance */ |
| 1776 | u_int8_t flags; |
| 1777 | u_int8_t resvd; |
| 1778 | } scsipi_sense; |
| 1779 | u_int64_t blocks; |
| 1780 | int error, blksize; |
| 1781 | |
| 1782 | /* |
| 1783 | * sd_read_capacity (ie "read capacity") and mode sense page 6 |
| 1784 | * give the same information. Do both for now, and check |
| 1785 | * for consistency. |
| 1786 | * XXX probably differs for removable media |
| 1787 | */ |
| 1788 | dp->blksize = SD_DEFAULT_BLKSIZE; |
| 1789 | if ((blocks = sd_read_capacity(sd->sc_periph, &blksize, flags)) == 0) |
| 1790 | return (SDGP_RESULT_OFFLINE); /* XXX? */ |
| 1791 | |
| 1792 | error = scsipi_mode_sense(sd->sc_periph, SMS_DBD, 6, |
| 1793 | &scsipi_sense.header, sizeof(scsipi_sense), |
| 1794 | flags, SDRETRIES, 6000); |
| 1795 | |
| 1796 | if (error != 0) |
| 1797 | return (SDGP_RESULT_OFFLINE); /* XXX? */ |
| 1798 | |
| 1799 | dp->blksize = blksize; |
| 1800 | if (!sd_validate_blksize(NULL, dp->blksize)) |
| 1801 | dp->blksize = _2btol(scsipi_sense.lbs); |
| 1802 | if (!sd_validate_blksize(sd->sc_periph, dp->blksize)) |
| 1803 | dp->blksize = SD_DEFAULT_BLKSIZE; |
| 1804 | |
| 1805 | /* |
| 1806 | * Create a pseudo-geometry. |
| 1807 | */ |
| 1808 | dp->heads = 64; |
| 1809 | dp->sectors = 32; |
| 1810 | dp->cyls = blocks / (dp->heads * dp->sectors); |
| 1811 | dp->disksize = _5btol(scsipi_sense.size); |
| 1812 | if (dp->disksize <= UINT32_MAX && dp->disksize != blocks) { |
| 1813 | printf("RBC size: mode sense=%llu, get cap=%llu\n" , |
| 1814 | (unsigned long long)dp->disksize, |
| 1815 | (unsigned long long)blocks); |
| 1816 | dp->disksize = blocks; |
| 1817 | } |
| 1818 | dp->disksize512 = (dp->disksize * dp->blksize) / DEV_BSIZE; |
| 1819 | |
| 1820 | return (SDGP_RESULT_OK); |
| 1821 | } |
| 1822 | |
| 1823 | /* |
| 1824 | * Get the scsi driver to send a full inquiry to the * device and use the |
| 1825 | * results to fill out the disk parameter structure. |
| 1826 | */ |
| 1827 | static int |
| 1828 | sd_get_capacity(struct sd_softc *sd, struct disk_parms *dp, int flags) |
| 1829 | { |
| 1830 | u_int64_t blocks; |
| 1831 | int error, blksize; |
| 1832 | #if 0 |
| 1833 | int i; |
| 1834 | u_int8_t *p; |
| 1835 | #endif |
| 1836 | |
| 1837 | dp->disksize = blocks = sd_read_capacity(sd->sc_periph, &blksize, |
| 1838 | flags); |
| 1839 | if (blocks == 0) { |
| 1840 | struct scsipi_read_format_capacities cmd; |
| 1841 | struct { |
| 1842 | struct scsipi_capacity_list_header ; |
| 1843 | struct scsipi_capacity_descriptor desc; |
| 1844 | } __packed data; |
| 1845 | |
| 1846 | memset(&cmd, 0, sizeof(cmd)); |
| 1847 | memset(&data, 0, sizeof(data)); |
| 1848 | cmd.opcode = READ_FORMAT_CAPACITIES; |
| 1849 | _lto2b(sizeof(data), cmd.length); |
| 1850 | |
| 1851 | error = scsipi_command(sd->sc_periph, |
| 1852 | (void *)&cmd, sizeof(cmd), (void *)&data, sizeof(data), |
| 1853 | SDRETRIES, 20000, NULL, |
| 1854 | flags | XS_CTL_DATA_IN); |
| 1855 | if (error == EFTYPE) { |
| 1856 | /* Medium Format Corrupted, handle as not formatted */ |
| 1857 | return (SDGP_RESULT_UNFORMATTED); |
| 1858 | } |
| 1859 | if (error || data.header.length == 0) |
| 1860 | return (SDGP_RESULT_OFFLINE); |
| 1861 | |
| 1862 | #if 0 |
| 1863 | printf("rfc: length=%d\n" , data.header.length); |
| 1864 | printf("rfc result:" ); for (i = sizeof(struct scsipi_capacity_list_header) + data.header.length, p = (void *)&data; i; i--, p++) printf(" %02x" , *p); printf("\n" ); |
| 1865 | #endif |
| 1866 | switch (data.desc.byte5 & SCSIPI_CAP_DESC_CODE_MASK) { |
| 1867 | case SCSIPI_CAP_DESC_CODE_RESERVED: |
| 1868 | case SCSIPI_CAP_DESC_CODE_FORMATTED: |
| 1869 | break; |
| 1870 | |
| 1871 | case SCSIPI_CAP_DESC_CODE_UNFORMATTED: |
| 1872 | return (SDGP_RESULT_UNFORMATTED); |
| 1873 | |
| 1874 | case SCSIPI_CAP_DESC_CODE_NONE: |
| 1875 | return (SDGP_RESULT_OFFLINE); |
| 1876 | } |
| 1877 | |
| 1878 | dp->disksize = blocks = _4btol(data.desc.nblks); |
| 1879 | if (blocks == 0) |
| 1880 | return (SDGP_RESULT_OFFLINE); /* XXX? */ |
| 1881 | |
| 1882 | blksize = _3btol(data.desc.blklen); |
| 1883 | |
| 1884 | } else if (!sd_validate_blksize(NULL, blksize)) { |
| 1885 | struct sd_mode_sense_data scsipi_sense; |
| 1886 | int big, bsize; |
| 1887 | struct scsi_general_block_descriptor *bdesc; |
| 1888 | |
| 1889 | memset(&scsipi_sense, 0, sizeof(scsipi_sense)); |
| 1890 | error = sd_mode_sense(sd, 0, &scsipi_sense, |
| 1891 | sizeof(scsipi_sense.blk_desc), 0, flags | XS_CTL_SILENT, &big); |
| 1892 | if (!error) { |
| 1893 | if (big) { |
| 1894 | bdesc = (void *)(&scsipi_sense.header.big + 1); |
| 1895 | bsize = _2btol(scsipi_sense.header.big.blk_desc_len); |
| 1896 | } else { |
| 1897 | bdesc = (void *)(&scsipi_sense.header.small + 1); |
| 1898 | bsize = scsipi_sense.header.small.blk_desc_len; |
| 1899 | } |
| 1900 | |
| 1901 | #if 0 |
| 1902 | printf("page 0 sense:" ); for (i = sizeof(scsipi_sense), p = (void *)&scsipi_sense; i; i--, p++) printf(" %02x" , *p); printf("\n" ); |
| 1903 | printf("page 0 bsize=%d\n" , bsize); |
| 1904 | printf("page 0 ok\n" ); |
| 1905 | #endif |
| 1906 | |
| 1907 | if (bsize >= 8) { |
| 1908 | blksize = _3btol(bdesc->blklen); |
| 1909 | } |
| 1910 | } |
| 1911 | } |
| 1912 | |
| 1913 | if (!sd_validate_blksize(sd->sc_periph, blksize)) |
| 1914 | blksize = SD_DEFAULT_BLKSIZE; |
| 1915 | |
| 1916 | dp->blksize = blksize; |
| 1917 | dp->disksize512 = (blocks * dp->blksize) / DEV_BSIZE; |
| 1918 | return (0); |
| 1919 | } |
| 1920 | |
| 1921 | static int |
| 1922 | sd_get_parms_page4(struct sd_softc *sd, struct disk_parms *dp, int flags) |
| 1923 | { |
| 1924 | struct sd_mode_sense_data scsipi_sense; |
| 1925 | int error; |
| 1926 | int big, byte2; |
| 1927 | size_t poffset; |
| 1928 | union scsi_disk_pages *pages; |
| 1929 | |
| 1930 | byte2 = SMS_DBD; |
| 1931 | again: |
| 1932 | memset(&scsipi_sense, 0, sizeof(scsipi_sense)); |
| 1933 | error = sd_mode_sense(sd, byte2, &scsipi_sense, |
| 1934 | (byte2 ? 0 : sizeof(scsipi_sense.blk_desc)) + |
| 1935 | sizeof(scsipi_sense.pages.rigid_geometry), 4, |
| 1936 | flags | XS_CTL_SILENT, &big); |
| 1937 | if (error) { |
| 1938 | if (byte2 == SMS_DBD) { |
| 1939 | /* No result; try once more with DBD off */ |
| 1940 | byte2 = 0; |
| 1941 | goto again; |
| 1942 | } |
| 1943 | return (error); |
| 1944 | } |
| 1945 | |
| 1946 | if (big) { |
| 1947 | poffset = sizeof scsipi_sense.header.big; |
| 1948 | poffset += _2btol(scsipi_sense.header.big.blk_desc_len); |
| 1949 | } else { |
| 1950 | poffset = sizeof scsipi_sense.header.small; |
| 1951 | poffset += scsipi_sense.header.small.blk_desc_len; |
| 1952 | } |
| 1953 | |
| 1954 | if (poffset > sizeof(scsipi_sense) - sizeof(pages->rigid_geometry)) |
| 1955 | return ERESTART; |
| 1956 | |
| 1957 | pages = (void *)((u_long)&scsipi_sense + poffset); |
| 1958 | #if 0 |
| 1959 | { |
| 1960 | size_t i; |
| 1961 | u_int8_t *p; |
| 1962 | |
| 1963 | printf("page 4 sense:" ); |
| 1964 | for (i = sizeof(scsipi_sense), p = (void *)&scsipi_sense; i; |
| 1965 | i--, p++) |
| 1966 | printf(" %02x" , *p); |
| 1967 | printf("\n" ); |
| 1968 | printf("page 4 pg_code=%d sense=%p/%p\n" , |
| 1969 | pages->rigid_geometry.pg_code, &scsipi_sense, pages); |
| 1970 | } |
| 1971 | #endif |
| 1972 | |
| 1973 | if ((pages->rigid_geometry.pg_code & PGCODE_MASK) != 4) |
| 1974 | return (ERESTART); |
| 1975 | |
| 1976 | SC_DEBUG(sd->sc_periph, SCSIPI_DB3, |
| 1977 | ("%d cyls, %d heads, %d precomp, %d red_write, %d land_zone\n" , |
| 1978 | _3btol(pages->rigid_geometry.ncyl), |
| 1979 | pages->rigid_geometry.nheads, |
| 1980 | _2btol(pages->rigid_geometry.st_cyl_wp), |
| 1981 | _2btol(pages->rigid_geometry.st_cyl_rwc), |
| 1982 | _2btol(pages->rigid_geometry.land_zone))); |
| 1983 | |
| 1984 | /* |
| 1985 | * KLUDGE!! (for zone recorded disks) |
| 1986 | * give a number of sectors so that sec * trks * cyls |
| 1987 | * is <= disk_size |
| 1988 | * can lead to wasted space! THINK ABOUT THIS ! |
| 1989 | */ |
| 1990 | dp->heads = pages->rigid_geometry.nheads; |
| 1991 | dp->cyls = _3btol(pages->rigid_geometry.ncyl); |
| 1992 | if (dp->heads == 0 || dp->cyls == 0) |
| 1993 | return (ERESTART); |
| 1994 | dp->sectors = dp->disksize / (dp->heads * dp->cyls); /* XXX */ |
| 1995 | |
| 1996 | dp->rot_rate = _2btol(pages->rigid_geometry.rpm); |
| 1997 | if (dp->rot_rate == 0) |
| 1998 | dp->rot_rate = 3600; |
| 1999 | |
| 2000 | #if 0 |
| 2001 | printf("page 4 ok\n" ); |
| 2002 | #endif |
| 2003 | return (0); |
| 2004 | } |
| 2005 | |
| 2006 | static int |
| 2007 | sd_get_parms_page5(struct sd_softc *sd, struct disk_parms *dp, int flags) |
| 2008 | { |
| 2009 | struct sd_mode_sense_data scsipi_sense; |
| 2010 | int error; |
| 2011 | int big, byte2; |
| 2012 | size_t poffset; |
| 2013 | union scsi_disk_pages *pages; |
| 2014 | |
| 2015 | byte2 = SMS_DBD; |
| 2016 | again: |
| 2017 | memset(&scsipi_sense, 0, sizeof(scsipi_sense)); |
| 2018 | error = sd_mode_sense(sd, 0, &scsipi_sense, |
| 2019 | (byte2 ? 0 : sizeof(scsipi_sense.blk_desc)) + |
| 2020 | sizeof(scsipi_sense.pages.flex_geometry), 5, |
| 2021 | flags | XS_CTL_SILENT, &big); |
| 2022 | if (error) { |
| 2023 | if (byte2 == SMS_DBD) { |
| 2024 | /* No result; try once more with DBD off */ |
| 2025 | byte2 = 0; |
| 2026 | goto again; |
| 2027 | } |
| 2028 | return (error); |
| 2029 | } |
| 2030 | |
| 2031 | if (big) { |
| 2032 | poffset = sizeof scsipi_sense.header.big; |
| 2033 | poffset += _2btol(scsipi_sense.header.big.blk_desc_len); |
| 2034 | } else { |
| 2035 | poffset = sizeof scsipi_sense.header.small; |
| 2036 | poffset += scsipi_sense.header.small.blk_desc_len; |
| 2037 | } |
| 2038 | |
| 2039 | if (poffset > sizeof(scsipi_sense) - sizeof(pages->flex_geometry)) |
| 2040 | return ERESTART; |
| 2041 | |
| 2042 | pages = (void *)((u_long)&scsipi_sense + poffset); |
| 2043 | #if 0 |
| 2044 | { |
| 2045 | size_t i; |
| 2046 | u_int8_t *p; |
| 2047 | |
| 2048 | printf("page 5 sense:" ); |
| 2049 | for (i = sizeof(scsipi_sense), p = (void *)&scsipi_sense; i; |
| 2050 | i--, p++) |
| 2051 | printf(" %02x" , *p); |
| 2052 | printf("\n" ); |
| 2053 | printf("page 5 pg_code=%d sense=%p/%p\n" , |
| 2054 | pages->flex_geometry.pg_code, &scsipi_sense, pages); |
| 2055 | } |
| 2056 | #endif |
| 2057 | |
| 2058 | if ((pages->flex_geometry.pg_code & PGCODE_MASK) != 5) |
| 2059 | return (ERESTART); |
| 2060 | |
| 2061 | SC_DEBUG(sd->sc_periph, SCSIPI_DB3, |
| 2062 | ("%d cyls, %d heads, %d sec, %d bytes/sec\n" , |
| 2063 | _3btol(pages->flex_geometry.ncyl), |
| 2064 | pages->flex_geometry.nheads, |
| 2065 | pages->flex_geometry.ph_sec_tr, |
| 2066 | _2btol(pages->flex_geometry.bytes_s))); |
| 2067 | |
| 2068 | dp->heads = pages->flex_geometry.nheads; |
| 2069 | dp->cyls = _2btol(pages->flex_geometry.ncyl); |
| 2070 | dp->sectors = pages->flex_geometry.ph_sec_tr; |
| 2071 | if (dp->heads == 0 || dp->cyls == 0 || dp->sectors == 0) |
| 2072 | return (ERESTART); |
| 2073 | |
| 2074 | dp->rot_rate = _2btol(pages->rigid_geometry.rpm); |
| 2075 | if (dp->rot_rate == 0) |
| 2076 | dp->rot_rate = 3600; |
| 2077 | |
| 2078 | #if 0 |
| 2079 | printf("page 5 ok\n" ); |
| 2080 | #endif |
| 2081 | return (0); |
| 2082 | } |
| 2083 | |
| 2084 | static int |
| 2085 | sd_get_parms(struct sd_softc *sd, struct disk_parms *dp, int flags) |
| 2086 | { |
| 2087 | int error; |
| 2088 | |
| 2089 | /* |
| 2090 | * If offline, the SDEV_MEDIA_LOADED flag will be |
| 2091 | * cleared by the caller if necessary. |
| 2092 | */ |
| 2093 | if (sd->type == T_SIMPLE_DIRECT) { |
| 2094 | error = sd_get_simplifiedparms(sd, dp, flags); |
| 2095 | if (!error) |
| 2096 | goto setprops; |
| 2097 | return (error); |
| 2098 | } |
| 2099 | |
| 2100 | error = sd_get_capacity(sd, dp, flags); |
| 2101 | if (error) |
| 2102 | return (error); |
| 2103 | |
| 2104 | if (sd->type == T_OPTICAL) |
| 2105 | goto page0; |
| 2106 | |
| 2107 | if (sd->sc_periph->periph_flags & PERIPH_REMOVABLE) { |
| 2108 | if (!sd_get_parms_page5(sd, dp, flags) || |
| 2109 | !sd_get_parms_page4(sd, dp, flags)) |
| 2110 | goto setprops; |
| 2111 | } else { |
| 2112 | if (!sd_get_parms_page4(sd, dp, flags) || |
| 2113 | !sd_get_parms_page5(sd, dp, flags)) |
| 2114 | goto setprops; |
| 2115 | } |
| 2116 | |
| 2117 | page0: |
| 2118 | printf("%s: fabricating a geometry\n" , device_xname(sd->sc_dev)); |
| 2119 | /* Try calling driver's method for figuring out geometry. */ |
| 2120 | if (!sd->sc_periph->periph_channel->chan_adapter->adapt_getgeom || |
| 2121 | !(*sd->sc_periph->periph_channel->chan_adapter->adapt_getgeom) |
| 2122 | (sd->sc_periph, dp, dp->disksize)) { |
| 2123 | /* |
| 2124 | * Use adaptec standard fictitious geometry |
| 2125 | * this depends on which controller (e.g. 1542C is |
| 2126 | * different. but we have to put SOMETHING here..) |
| 2127 | */ |
| 2128 | dp->heads = 64; |
| 2129 | dp->sectors = 32; |
| 2130 | dp->cyls = dp->disksize / (64 * 32); |
| 2131 | } |
| 2132 | dp->rot_rate = 3600; |
| 2133 | |
| 2134 | setprops: |
| 2135 | sd_set_geometry(sd); |
| 2136 | |
| 2137 | return (SDGP_RESULT_OK); |
| 2138 | } |
| 2139 | |
| 2140 | static int |
| 2141 | sd_flush(struct sd_softc *sd, int flags) |
| 2142 | { |
| 2143 | struct scsipi_periph *periph = sd->sc_periph; |
| 2144 | struct scsi_synchronize_cache_10 cmd; |
| 2145 | |
| 2146 | /* |
| 2147 | * If the device is SCSI-2, issue a SYNCHRONIZE CACHE. |
| 2148 | * We issue with address 0 length 0, which should be |
| 2149 | * interpreted by the device as "all remaining blocks |
| 2150 | * starting at address 0". We ignore ILLEGAL REQUEST |
| 2151 | * in the event that the command is not supported by |
| 2152 | * the device, and poll for completion so that we know |
| 2153 | * that the cache has actually been flushed. |
| 2154 | * |
| 2155 | * Unless, that is, the device can't handle the SYNCHRONIZE CACHE |
| 2156 | * command, as indicated by our quirks flags. |
| 2157 | * |
| 2158 | * XXX What about older devices? |
| 2159 | */ |
| 2160 | if (periph->periph_version < 2 || |
| 2161 | (periph->periph_quirks & PQUIRK_NOSYNCCACHE)) |
| 2162 | return (0); |
| 2163 | |
| 2164 | sd->flags |= SDF_FLUSHING; |
| 2165 | memset(&cmd, 0, sizeof(cmd)); |
| 2166 | cmd.opcode = SCSI_SYNCHRONIZE_CACHE_10; |
| 2167 | |
| 2168 | return (scsipi_command(periph, (void *)&cmd, sizeof(cmd), 0, 0, |
| 2169 | SDRETRIES, 100000, NULL, flags | XS_CTL_IGNORE_ILLEGAL_REQUEST)); |
| 2170 | } |
| 2171 | |
| 2172 | static int |
| 2173 | sd_getcache(struct sd_softc *sd, int *bitsp) |
| 2174 | { |
| 2175 | struct scsipi_periph *periph = sd->sc_periph; |
| 2176 | struct sd_mode_sense_data scsipi_sense; |
| 2177 | int error, bits = 0; |
| 2178 | int big; |
| 2179 | union scsi_disk_pages *pages; |
| 2180 | |
| 2181 | if (periph->periph_version < 2) |
| 2182 | return (EOPNOTSUPP); |
| 2183 | |
| 2184 | memset(&scsipi_sense, 0, sizeof(scsipi_sense)); |
| 2185 | error = sd_mode_sense(sd, SMS_DBD, &scsipi_sense, |
| 2186 | sizeof(scsipi_sense.pages.caching_params), 8, 0, &big); |
| 2187 | if (error) |
| 2188 | return (error); |
| 2189 | |
| 2190 | if (big) |
| 2191 | pages = (void *)(&scsipi_sense.header.big + 1); |
| 2192 | else |
| 2193 | pages = (void *)(&scsipi_sense.header.small + 1); |
| 2194 | |
| 2195 | if ((pages->caching_params.flags & CACHING_RCD) == 0) |
| 2196 | bits |= DKCACHE_READ; |
| 2197 | if (pages->caching_params.flags & CACHING_WCE) |
| 2198 | bits |= DKCACHE_WRITE; |
| 2199 | if (pages->caching_params.pg_code & PGCODE_PS) |
| 2200 | bits |= DKCACHE_SAVE; |
| 2201 | |
| 2202 | memset(&scsipi_sense, 0, sizeof(scsipi_sense)); |
| 2203 | error = sd_mode_sense(sd, SMS_DBD, &scsipi_sense, |
| 2204 | sizeof(scsipi_sense.pages.caching_params), |
| 2205 | SMS_PCTRL_CHANGEABLE|8, 0, &big); |
| 2206 | if (error == 0) { |
| 2207 | if (big) |
| 2208 | pages = (void *)(&scsipi_sense.header.big + 1); |
| 2209 | else |
| 2210 | pages = (void *)(&scsipi_sense.header.small + 1); |
| 2211 | |
| 2212 | if (pages->caching_params.flags & CACHING_RCD) |
| 2213 | bits |= DKCACHE_RCHANGE; |
| 2214 | if (pages->caching_params.flags & CACHING_WCE) |
| 2215 | bits |= DKCACHE_WCHANGE; |
| 2216 | } |
| 2217 | |
| 2218 | *bitsp = bits; |
| 2219 | |
| 2220 | return (0); |
| 2221 | } |
| 2222 | |
| 2223 | static int |
| 2224 | sd_setcache(struct sd_softc *sd, int bits) |
| 2225 | { |
| 2226 | struct scsipi_periph *periph = sd->sc_periph; |
| 2227 | struct sd_mode_sense_data scsipi_sense; |
| 2228 | int error; |
| 2229 | uint8_t oflags, byte2 = 0; |
| 2230 | int big; |
| 2231 | union scsi_disk_pages *pages; |
| 2232 | |
| 2233 | if (periph->periph_version < 2) |
| 2234 | return (EOPNOTSUPP); |
| 2235 | |
| 2236 | memset(&scsipi_sense, 0, sizeof(scsipi_sense)); |
| 2237 | error = sd_mode_sense(sd, SMS_DBD, &scsipi_sense, |
| 2238 | sizeof(scsipi_sense.pages.caching_params), 8, 0, &big); |
| 2239 | if (error) |
| 2240 | return (error); |
| 2241 | |
| 2242 | if (big) |
| 2243 | pages = (void *)(&scsipi_sense.header.big + 1); |
| 2244 | else |
| 2245 | pages = (void *)(&scsipi_sense.header.small + 1); |
| 2246 | |
| 2247 | oflags = pages->caching_params.flags; |
| 2248 | |
| 2249 | if (bits & DKCACHE_READ) |
| 2250 | pages->caching_params.flags &= ~CACHING_RCD; |
| 2251 | else |
| 2252 | pages->caching_params.flags |= CACHING_RCD; |
| 2253 | |
| 2254 | if (bits & DKCACHE_WRITE) |
| 2255 | pages->caching_params.flags |= CACHING_WCE; |
| 2256 | else |
| 2257 | pages->caching_params.flags &= ~CACHING_WCE; |
| 2258 | |
| 2259 | if (oflags == pages->caching_params.flags) |
| 2260 | return (0); |
| 2261 | |
| 2262 | pages->caching_params.pg_code &= PGCODE_MASK; |
| 2263 | |
| 2264 | if (bits & DKCACHE_SAVE) |
| 2265 | byte2 |= SMS_SP; |
| 2266 | |
| 2267 | return (sd_mode_select(sd, byte2|SMS_PF, &scsipi_sense, |
| 2268 | sizeof(struct scsi_mode_page_header) + |
| 2269 | pages->caching_params.pg_length, 0, big)); |
| 2270 | } |
| 2271 | |
| 2272 | static void |
| 2273 | sd_set_geometry(struct sd_softc *sd) |
| 2274 | { |
| 2275 | struct disk_geom *dg = &sd->sc_dk.dk_geom; |
| 2276 | |
| 2277 | memset(dg, 0, sizeof(*dg)); |
| 2278 | |
| 2279 | dg->dg_secperunit = sd->params.disksize; |
| 2280 | dg->dg_secsize = sd->params.blksize; |
| 2281 | dg->dg_nsectors = sd->params.sectors; |
| 2282 | dg->dg_ntracks = sd->params.heads; |
| 2283 | dg->dg_ncylinders = sd->params.cyls; |
| 2284 | |
| 2285 | disk_set_info(sd->sc_dev, &sd->sc_dk, NULL); |
| 2286 | } |
| 2287 | |