sys/cam/scsi/scsi_da.c

   1 /*-
   2  * Implementation of SCSI Direct Access Peripheral driver for CAM.
   3  *
   4  * Copyright (c) 1997 Justin T. Gibbs.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions, and the following disclaimer,
  12  *    without modification, immediately at the beginning of the file.
  13  * 2. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <sys/param.h>
  33
  34 #ifdef _KERNEL
  35 #include <sys/systm.h>
  36 #include <sys/kernel.h>
  37 #include <sys/bio.h>
  38 #include <sys/sysctl.h>
  39 #include <sys/taskqueue.h>
  40 #include <sys/lock.h>
  41 #include <sys/mutex.h>
  42 #include <sys/conf.h>
  43 #include <sys/devicestat.h>
  44 #include <sys/eventhandler.h>
  45 #include <sys/malloc.h>
  46 #include <sys/cons.h>
  47 #include <sys/endian.h>
  48 #include <sys/proc.h>
  49 #include <geom/geom.h>
  50 #include <geom/geom_disk.h>
  51 #endif /* _KERNEL */
  52
  53 #ifndef _KERNEL
  54 #include <stdio.h>
  55 #include <string.h>
  56 #endif /* _KERNEL */
  57
  58 #include <cam/cam.h>
  59 #include <cam/cam_ccb.h>
  60 #include <cam/cam_periph.h>
  61 #include <cam/cam_xpt_periph.h>
  62 #include <cam/cam_sim.h>
  63
  64 #include <cam/scsi/scsi_message.h>
  65
  66 #ifndef _KERNEL
  67 #include <cam/scsi/scsi_da.h>
  68 #endif /* !_KERNEL */
  69
  70 #ifdef _KERNEL
  71 typedef enum {
  72         DA_STATE_PROBE_RC,
  73         DA_STATE_PROBE_RC16,
  74         DA_STATE_PROBE_LBP,
  75         DA_STATE_PROBE_BLK_LIMITS,
  76         DA_STATE_PROBE_BDC,
  77         DA_STATE_PROBE_ATA,
  78         DA_STATE_NORMAL
  79 } da_state;
  80
  81 typedef enum {
  82         DA_FLAG_PACK_INVALID    = 0x001,
  83         DA_FLAG_NEW_PACK        = 0x002,
  84         DA_FLAG_PACK_LOCKED     = 0x004,
  85         DA_FLAG_PACK_REMOVABLE  = 0x008,
  86         DA_FLAG_NEED_OTAG       = 0x020,
  87         DA_FLAG_WAS_OTAG        = 0x040,
  88         DA_FLAG_RETRY_UA        = 0x080,
  89         DA_FLAG_OPEN            = 0x100,
  90         DA_FLAG_SCTX_INIT       = 0x200,
  91         DA_FLAG_CAN_RC16        = 0x400,
  92         DA_FLAG_PROBED          = 0x800,
  93         DA_FLAG_DIRTY           = 0x1000,
  94         DA_FLAG_ANNOUNCED       = 0x2000
  95 } da_flags;
  96
  97 typedef enum {
  98         DA_Q_NONE               = 0x00,
  99         DA_Q_NO_SYNC_CACHE      = 0x01,
 100         DA_Q_NO_6_BYTE          = 0x02,
 101         DA_Q_NO_PREVENT         = 0x04,
 102         DA_Q_4K                 = 0x08,
 103         DA_Q_NO_RC16            = 0x10,
 104         DA_Q_NO_UNMAP           = 0x20
 105 } da_quirks;
 106
 107 #define DA_Q_BIT_STRING         \
 108         "\020"                  \
 109         "\001NO_SYNC_CACHE"     \
 110         "\002NO_6_BYTE"         \
 111         "\003NO_PREVENT"        \
 112         "\0044K"                \
 113         "\005NO_RC16"
 114
 115 typedef enum {
 116         DA_CCB_PROBE_RC         = 0x01,
 117         DA_CCB_PROBE_RC16       = 0x02,
 118         DA_CCB_PROBE_LBP        = 0x03,
 119         DA_CCB_PROBE_BLK_LIMITS = 0x04,
 120         DA_CCB_PROBE_BDC        = 0x05,
 121         DA_CCB_PROBE_ATA        = 0x06,
 122         DA_CCB_BUFFER_IO        = 0x07,
 123         DA_CCB_DUMP             = 0x0A,
 124         DA_CCB_DELETE           = 0x0B,
 125         DA_CCB_TUR              = 0x0C,
 126         DA_CCB_TYPE_MASK        = 0x0F,
 127         DA_CCB_RETRY_UA         = 0x10
 128 } da_ccb_state;
 129
 130 /*
 131  * Order here is important for method choice
 132  *
 133  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
 134  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
 135  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
 136  * import taking 5mins.
 137  *
 138  */
 139 typedef enum {
 140         DA_DELETE_NONE,
 141         DA_DELETE_DISABLE,
 142         DA_DELETE_ATA_TRIM,
 143         DA_DELETE_UNMAP,
 144         DA_DELETE_WS16,
 145         DA_DELETE_WS10,
 146         DA_DELETE_ZERO,
 147         DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
 148         DA_DELETE_MAX = DA_DELETE_ZERO
 149 } da_delete_methods;
 150
 151 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
 152                               struct bio *bp);
 153 static da_delete_func_t da_delete_trim;
 154 static da_delete_func_t da_delete_unmap;
 155 static da_delete_func_t da_delete_ws;
 156
 157 static const void * da_delete_functions[] = {
 158         NULL,
 159         NULL,
 160         da_delete_trim,
 161         da_delete_unmap,
 162         da_delete_ws,
 163         da_delete_ws,
 164         da_delete_ws
 165 };
 166
 167 static const char *da_delete_method_names[] =
 168     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
 169 static const char *da_delete_method_desc[] =
 170     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
 171       "WRITE SAME(10) with UNMAP", "ZERO" };
 172
 173 /* Offsets into our private area for storing information */
 174 #define ccb_state       ppriv_field0
 175 #define ccb_bp          ppriv_ptr1
 176
 177 struct disk_params {
 178         u_int8_t  heads;
 179         u_int32_t cylinders;
 180         u_int8_t  secs_per_track;
 181         u_int32_t secsize;      /* Number of bytes/sector */
 182         u_int64_t sectors;      /* total number sectors */
 183         u_int     stripesize;
 184         u_int     stripeoffset;
 185 };
 186
 187 #define UNMAP_RANGE_MAX         0xffffffff
 188 #define UNMAP_HEAD_SIZE         8
 189 #define UNMAP_RANGE_SIZE        16
 190 #define UNMAP_MAX_RANGES        2048 /* Protocol Max is 4095 */
 191 #define UNMAP_BUF_SIZE          ((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
 192                                 UNMAP_HEAD_SIZE)
 193
 194 #define WS10_MAX_BLKS           0xffff
 195 #define WS16_MAX_BLKS           0xffffffff
 196 #define ATA_TRIM_MAX_RANGES     ((UNMAP_BUF_SIZE / \
 197         (ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
 198
 199 struct da_softc {
 200         struct   bio_queue_head bio_queue;
 201         struct   bio_queue_head delete_queue;
 202         struct   bio_queue_head delete_run_queue;
 203         LIST_HEAD(, ccb_hdr) pending_ccbs;
 204         int      tur;                   /* TEST UNIT READY should be sent */
 205         int      refcount;              /* Active xpt_action() calls */
 206         da_state state;
 207         da_flags flags;
 208         da_quirks quirks;
 209         int      sort_io_queue;
 210         int      minimum_cmd_size;
 211         int      error_inject;
 212         int      trim_max_ranges;
 213         int      delete_running;
 214         int      delete_available;      /* Delete methods possibly available */
 215         u_int    maxio;
 216         uint32_t                unmap_max_ranges;
 217         uint32_t                unmap_max_lba; /* Max LBAs in UNMAP req */
 218         uint64_t                ws_max_blks;
 219         da_delete_methods       delete_method;
 220         da_delete_func_t        *delete_func;
 221         struct   disk_params params;
 222         struct   disk *disk;
 223         union    ccb saved_ccb;
 224         struct task             sysctl_task;
 225         struct sysctl_ctx_list  sysctl_ctx;
 226         struct sysctl_oid       *sysctl_tree;
 227         struct callout          sendordered_c;
 228         uint64_t wwpn;
 229         uint8_t  unmap_buf[UNMAP_BUF_SIZE];
 230         struct scsi_read_capacity_data_long rcaplong;
 231         struct callout          mediapoll_c;
 232 };
 233
 234 #define dadeleteflag(softc, delete_method, enable)                      \
 235         if (enable) {                                                   \
 236                 softc->delete_available |= (1 << delete_method);        \
 237         } else {                                                        \
 238                 softc->delete_available &= ~(1 << delete_method);       \
 239         }
 240
 241 struct da_quirk_entry {
 242         struct scsi_inquiry_pattern inq_pat;
 243         da_quirks quirks;
 244 };
 245
 246 static const char quantum[] = "QUANTUM";
 247 static const char microp[] = "MICROP";
 248
 249 static struct da_quirk_entry da_quirk_table[] =
 250 {
 251         /* SPI, FC devices */
 252         {
 253                 /*
 254                  * Fujitsu M2513A MO drives.
 255                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 256                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 257                  * Reported by: W.Scholten <whs@xs4all.nl>
 258                  */
 259                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 260                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 261         },
 262         {
 263                 /* See above. */
 264                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 265                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 266         },
 267         {
 268                 /*
 269                  * This particular Fujitsu drive doesn't like the
 270                  * synchronize cache command.
 271                  * Reported by: Tom Jackson <toj@gorilla.net>
 272                  */
 273                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 274                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 275         },
 276         {
 277                 /*
 278                  * This drive doesn't like the synchronize cache command
 279                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 280                  * in NetBSD PR kern/6027, August 24, 1998.
 281                  */
 282                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 283                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 284         },
 285         {
 286                 /*
 287                  * This drive doesn't like the synchronize cache command
 288                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 289                  * (PR 8882).
 290                  */
 291                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 292                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 293         },
 294         {
 295                 /*
 296                  * Doesn't like the synchronize cache command.
 297                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 298                  */
 299                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 300                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 301         },
 302         {
 303                 /*
 304                  * Doesn't like the synchronize cache command.
 305                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 306                  */
 307                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 308                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 309         },
 310         {
 311                 /*
 312                  * Doesn't like the synchronize cache command.
 313                  */
 314                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 315                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 316         },
 317         {
 318                 /*
 319                  * Doesn't like the synchronize cache command.
 320                  * Reported by: walter@pelissero.de
 321                  */
 322                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 323                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 324         },
 325         {
 326                 /*
 327                  * Doesn't work correctly with 6 byte reads/writes.
 328                  * Returns illegal request, and points to byte 9 of the
 329                  * 6-byte CDB.
 330                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 331                  */
 332                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 333                 /*quirks*/ DA_Q_NO_6_BYTE
 334         },
 335         {
 336                 /* See above. */
 337                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 338                 /*quirks*/ DA_Q_NO_6_BYTE
 339         },
 340         {
 341                 /*
 342                  * Doesn't like the synchronize cache command.
 343                  * Reported by: walter@pelissero.de
 344                  */
 345                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 346                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 347         },
 348         {
 349                 /*
 350                  * The CISS RAID controllers do not support SYNC_CACHE
 351                  */
 352                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 353                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 354         },
 355         {
 356                 /*
 357                  * The STEC SSDs sometimes hang on UNMAP.
 358                  */
 359                 {T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
 360                 /*quirks*/ DA_Q_NO_UNMAP
 361         },
 362         /* USB mass storage devices supported by umass(4) */
 363         {
 364                 /*
 365                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 366                  * PR: kern/51675
 367                  */
 368                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 369                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 370         },
 371         {
 372                 /*
 373                  * Power Quotient Int. (PQI) USB flash key
 374                  * PR: kern/53067
 375                  */
 376                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 377                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 378         },
 379         {
 380                 /*
 381                  * Creative Nomad MUVO mp3 player (USB)
 382                  * PR: kern/53094
 383                  */
 384                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 385                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 386         },
 387         {
 388                 /*
 389                  * Jungsoft NEXDISK USB flash key
 390                  * PR: kern/54737
 391                  */
 392                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 393                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 394         },
 395         {
 396                 /*
 397                  * FreeDik USB Mini Data Drive
 398                  * PR: kern/54786
 399                  */
 400                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 401                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 402         },
 403         {
 404                 /*
 405                  * Sigmatel USB Flash MP3 Player
 406                  * PR: kern/57046
 407                  */
 408                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 409                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 410         },
 411         {
 412                 /*
 413                  * Neuros USB Digital Audio Computer
 414                  * PR: kern/63645
 415                  */
 416                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 417                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 418         },
 419         {
 420                 /*
 421                  * SEAGRAND NP-900 MP3 Player
 422                  * PR: kern/64563
 423                  */
 424                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 425                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 426         },
 427         {
 428                 /*
 429                  * iRiver iFP MP3 player (with UMS Firmware)
 430                  * PR: kern/54881, i386/63941, kern/66124
 431                  */
 432                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 433                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 434         },
 435         {
 436                 /*
 437                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 438                  * PR: kern/70158
 439                  */
 440                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 441                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 442         },
 443         {
 444                 /*
 445                  * ZICPlay USB MP3 Player with FM
 446                  * PR: kern/75057
 447                  */
 448                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 449                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 450         },
 451         {
 452                 /*
 453                  * TEAC USB floppy mechanisms
 454                  */
 455                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 456                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 457         },
 458         {
 459                 /*
 460                  * Kingston DataTraveler II+ USB Pen-Drive.
 461                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 462                  */
 463                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 464                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 465         },
 466         {
 467                 /*
 468                  * USB DISK Pro PMAP
 469                  * Reported by: jhs
 470                  * PR: usb/96381
 471                  */
 472                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
 473                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 474         },
 475         {
 476                 /*
 477                  * Motorola E398 Mobile Phone (TransFlash memory card).
 478                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 479                  * PR: usb/89889
 480                  */
 481                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 482                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 483         },
 484         {
 485                 /*
 486                  * Qware BeatZkey! Pro
 487                  * PR: usb/79164
 488                  */
 489                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 490                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 491         },
 492         {
 493                 /*
 494                  * Time DPA20B 1GB MP3 Player
 495                  * PR: usb/81846
 496                  */
 497                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 498                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 499         },
 500         {
 501                 /*
 502                  * Samsung USB key 128Mb
 503                  * PR: usb/90081
 504                  */
 505                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 506                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 507         },
 508         {
 509                 /*
 510                  * Kingston DataTraveler 2.0 USB Flash memory.
 511                  * PR: usb/89196
 512                  */
 513                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 514                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 515         },
 516         {
 517                 /*
 518                  * Creative MUVO Slim mp3 player (USB)
 519                  * PR: usb/86131
 520                  */
 521                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 522                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 523                 },
 524         {
 525                 /*
 526                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 527                  * PR: usb/80487
 528                  */
 529                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 530                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 531         },
 532         {
 533                 /*
 534                  * SanDisk Micro Cruzer 128MB
 535                  * PR: usb/75970
 536                  */
 537                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 538                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 539         },
 540         {
 541                 /*
 542                  * TOSHIBA TransMemory USB sticks
 543                  * PR: kern/94660
 544                  */
 545                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 546                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 547         },
 548         {
 549                 /*
 550                  * PNY USB 3.0 Flash Drives
 551                 */
 552                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
 553                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
 554         },
 555         {
 556                 /*
 557                  * PNY USB Flash keys
 558                  * PR: usb/75578, usb/72344, usb/65436
 559                  */
 560                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 561                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 562         },
 563         {
 564                 /*
 565                  * Genesys 6-in-1 Card Reader
 566                  * PR: usb/94647
 567                  */
 568                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 569                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 570         },
 571         {
 572                 /*
 573                  * Rekam Digital CAMERA
 574                  * PR: usb/98713
 575                  */
 576                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 577                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 578         },
 579         {
 580                 /*
 581                  * iRiver H10 MP3 player
 582                  * PR: usb/102547
 583                  */
 584                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 585                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 586         },
 587         {
 588                 /*
 589                  * iRiver U10 MP3 player
 590                  * PR: usb/92306
 591                  */
 592                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 593                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 594         },
 595         {
 596                 /*
 597                  * X-Micro Flash Disk
 598                  * PR: usb/96901
 599                  */
 600                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 601                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 602         },
 603         {
 604                 /*
 605                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 606                  * PR: usb/96546
 607                  */
 608                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 609                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 610         },
 611         {
 612                 /*
 613                  * Denver MP3 player
 614                  * PR: usb/107101
 615                  */
 616                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 617                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 618         },
 619         {
 620                 /*
 621                  * Philips USB Key Audio KEY013
 622                  * PR: usb/68412
 623                  */
 624                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 625                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 626         },
 627         {
 628                 /*
 629                  * JNC MP3 Player
 630                  * PR: usb/94439
 631                  */
 632                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 633                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 634         },
 635         {
 636                 /*
 637                  * SAMSUNG MP0402H
 638                  * PR: usb/108427
 639                  */
 640                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 641                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 642         },
 643         {
 644                 /*
 645                  * I/O Magic USB flash - Giga Bank
 646                  * PR: usb/108810
 647                  */
 648                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 649                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 650         },
 651         {
 652                 /*
 653                  * JoyFly 128mb USB Flash Drive
 654                  * PR: 96133
 655                  */
 656                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 657                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 658         },
 659         {
 660                 /*
 661                  * ChipsBnk usb stick
 662                  * PR: 103702
 663                  */
 664                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 665                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 666         },
 667         {
 668                 /*
 669                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 670                  * PR: 129858
 671                  */
 672                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 673                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 674         },
 675         {
 676                 /*
 677                  * Samsung YP-U3 mp3-player
 678                  * PR: 125398
 679                  */
 680                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 681                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 682         },
 683         {
 684                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 685                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 686         },
 687         {
 688                 /*
 689                  * Sony Cyber-Shot DSC cameras
 690                  * PR: usb/137035
 691                  */
 692                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 693                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 694         },
 695         {
 696                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
 697                  "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
 698         },
 699         {
 700                 /* At least several Transcent USB sticks lie on RC16. */
 701                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
 702                  "*"}, /*quirks*/ DA_Q_NO_RC16
 703         },
 704         /* ATA/SATA devices over SAS/USB/... */
 705         {
 706                 /* Hitachi Advanced Format (4k) drives */
 707                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 708                 /*quirks*/DA_Q_4K
 709         },
 710         {
 711                 /* Samsung Advanced Format (4k) drives */
 712                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 713                 /*quirks*/DA_Q_4K
 714         },
 715         {
 716                 /* Samsung Advanced Format (4k) drives */
 717                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 718                 /*quirks*/DA_Q_4K
 719         },
 720         {
 721                 /* Samsung Advanced Format (4k) drives */
 722                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 723                 /*quirks*/DA_Q_4K
 724         },
 725         {
 726                 /* Samsung Advanced Format (4k) drives */
 727                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 728                 /*quirks*/DA_Q_4K
 729         },
 730         {
 731                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 732                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 733                 /*quirks*/DA_Q_4K
 734         },
 735         {
 736                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 737                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 738                 /*quirks*/DA_Q_4K
 739         },
 740         {
 741                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 742                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 743                 /*quirks*/DA_Q_4K
 744         },
 745         {
 746                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 747                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 748                 /*quirks*/DA_Q_4K
 749         },
 750         {
 751                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 752                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 753                 /*quirks*/DA_Q_4K
 754         },
 755         {
 756                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 757                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 758                 /*quirks*/DA_Q_4K
 759         },
 760         {
 761                 /* Seagate Momentus Advanced Format (4k) drives */
 762                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 763                 /*quirks*/DA_Q_4K
 764         },
 765         {
 766                 /* Seagate Momentus Advanced Format (4k) drives */
 767                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 768                 /*quirks*/DA_Q_4K
 769         },
 770         {
 771                 /* Seagate Momentus Advanced Format (4k) drives */
 772                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 773                 /*quirks*/DA_Q_4K
 774         },
 775         {
 776                 /* Seagate Momentus Advanced Format (4k) drives */
 777                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 778                 /*quirks*/DA_Q_4K
 779         },
 780         {
 781                 /* Seagate Momentus Advanced Format (4k) drives */
 782                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 783                 /*quirks*/DA_Q_4K
 784         },
 785         {
 786                 /* Seagate Momentus Advanced Format (4k) drives */
 787                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 788                 /*quirks*/DA_Q_4K
 789         },
 790         {
 791                 /* Seagate Momentus Advanced Format (4k) drives */
 792                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 793                 /*quirks*/DA_Q_4K
 794         },
 795         {
 796                 /* Seagate Momentus Advanced Format (4k) drives */
 797                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 798                 /*quirks*/DA_Q_4K
 799         },
 800         {
 801                 /* Seagate Momentus Advanced Format (4k) drives */
 802                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 803                 /*quirks*/DA_Q_4K
 804         },
 805         {
 806                 /* Seagate Momentus Advanced Format (4k) drives */
 807                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 808                 /*quirks*/DA_Q_4K
 809         },
 810         {
 811                 /* Seagate Momentus Advanced Format (4k) drives */
 812                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 813                 /*quirks*/DA_Q_4K
 814         },
 815         {
 816                 /* Seagate Momentus Advanced Format (4k) drives */
 817                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 818                 /*quirks*/DA_Q_4K
 819         },
 820         {
 821                 /* Seagate Momentus Advanced Format (4k) drives */
 822                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 823                 /*quirks*/DA_Q_4K
 824         },
 825         {
 826                 /* Seagate Momentus Advanced Format (4k) drives */
 827                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 828                 /*quirks*/DA_Q_4K
 829         },
 830         {
 831                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 832                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 833                 /*quirks*/DA_Q_4K
 834         },
 835         {
 836                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 837                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 838                 /*quirks*/DA_Q_4K
 839         },
 840         {
 841                 /* WDC Caviar Green Advanced Format (4k) drives */
 842                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 843                 /*quirks*/DA_Q_4K
 844         },
 845         {
 846                 /* WDC Caviar Green Advanced Format (4k) drives */
 847                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 848                 /*quirks*/DA_Q_4K
 849         },
 850         {
 851                 /* WDC Caviar Green Advanced Format (4k) drives */
 852                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 853                 /*quirks*/DA_Q_4K
 854         },
 855         {
 856                 /* WDC Caviar Green Advanced Format (4k) drives */
 857                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 858                 /*quirks*/DA_Q_4K
 859         },
 860         {
 861                 /* WDC Caviar Green Advanced Format (4k) drives */
 862                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 863                 /*quirks*/DA_Q_4K
 864         },
 865         {
 866                 /* WDC Caviar Green Advanced Format (4k) drives */
 867                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 868                 /*quirks*/DA_Q_4K
 869         },
 870         {
 871                 /* WDC Caviar Green Advanced Format (4k) drives */
 872                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 873                 /*quirks*/DA_Q_4K
 874         },
 875         {
 876                 /* WDC Caviar Green Advanced Format (4k) drives */
 877                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 878                 /*quirks*/DA_Q_4K
 879         },
 880         {
 881                 /* WDC Scorpio Black Advanced Format (4k) drives */
 882                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 883                 /*quirks*/DA_Q_4K
 884         },
 885         {
 886                 /* WDC Scorpio Black Advanced Format (4k) drives */
 887                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 888                 /*quirks*/DA_Q_4K
 889         },
 890         {
 891                 /* WDC Scorpio Black Advanced Format (4k) drives */
 892                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 893                 /*quirks*/DA_Q_4K
 894         },
 895         {
 896                 /* WDC Scorpio Black Advanced Format (4k) drives */
 897                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 898                 /*quirks*/DA_Q_4K
 899         },
 900         {
 901                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 902                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 903                 /*quirks*/DA_Q_4K
 904         },
 905         {
 906                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 907                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 908                 /*quirks*/DA_Q_4K
 909         },
 910         {
 911                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 912                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 913                 /*quirks*/DA_Q_4K
 914         },
 915         {
 916                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 917                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 918                 /*quirks*/DA_Q_4K
 919         },
 920         {
 921                 /*
 922                  * Olympus FE-210 camera
 923                  */
 924                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 925                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 926         },
 927         {
 928                 /*
 929                  * LG UP3S MP3 player
 930                  */
 931                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 932                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 933         },
 934         {
 935                 /*
 936                  * Laser MP3-2GA13 MP3 player
 937                  */
 938                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 939                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 940         },
 941         {
 942                 /*
 943                  * LaCie external 250GB Hard drive des by Porsche
 944                  * Submitted by: Ben Stuyts <ben@altesco.nl>
 945                  * PR: 121474
 946                  */
 947                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
 948                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 949         },
 950         /* SATA SSDs */
 951         {
 952                 /*
 953                  * Corsair Force 2 SSDs
 954                  * 4k optimised & trim only works in 4k requests + 4k aligned
 955                  */
 956                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
 957                 /*quirks*/DA_Q_4K
 958         },
 959         {
 960                 /*
 961                  * Corsair Force 3 SSDs
 962                  * 4k optimised & trim only works in 4k requests + 4k aligned
 963                  */
 964                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
 965                 /*quirks*/DA_Q_4K
 966         },
 967         {
 968                 /*
 969                  * Corsair Neutron GTX SSDs
 970                  * 4k optimised & trim only works in 4k requests + 4k aligned
 971                  */
 972                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
 973                 /*quirks*/DA_Q_4K
 974         },
 975         {
 976                 /*
 977                  * Corsair Force GT & GS SSDs
 978                  * 4k optimised & trim only works in 4k requests + 4k aligned
 979                  */
 980                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
 981                 /*quirks*/DA_Q_4K
 982         },
 983         {
 984                 /*
 985                  * Crucial M4 SSDs
 986                  * 4k optimised & trim only works in 4k requests + 4k aligned
 987                  */
 988                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
 989                 /*quirks*/DA_Q_4K
 990         },
 991         {
 992                 /*
 993                  * Crucial RealSSD C300 SSDs
 994                  * 4k optimised
 995                  */
 996                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
 997                 "*" }, /*quirks*/DA_Q_4K
 998         },
 999         {
1000                 /*
1001                  * Intel 320 Series SSDs
1002                  * 4k optimised & trim only works in 4k requests + 4k aligned
1003                  */
1004                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1005                 /*quirks*/DA_Q_4K
1006         },
1007         {
1008                 /*
1009                  * Intel 330 Series SSDs
1010                  * 4k optimised & trim only works in 4k requests + 4k aligned
1011                  */
1012                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1013                 /*quirks*/DA_Q_4K
1014         },
1015         {
1016                 /*
1017                  * Intel 510 Series SSDs
1018                  * 4k optimised & trim only works in 4k requests + 4k aligned
1019                  */
1020                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1021                 /*quirks*/DA_Q_4K
1022         },
1023         {
1024                 /*
1025                  * Intel 520 Series SSDs
1026                  * 4k optimised & trim only works in 4k requests + 4k aligned
1027                  */
1028                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1029                 /*quirks*/DA_Q_4K
1030         },
1031         {
1032                 /*
1033                  * Intel X25-M Series SSDs
1034                  * 4k optimised & trim only works in 4k requests + 4k aligned
1035                  */
1036                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1037                 /*quirks*/DA_Q_4K
1038         },
1039         {
1040                 /*
1041                  * Kingston E100 Series SSDs
1042                  * 4k optimised & trim only works in 4k requests + 4k aligned
1043                  */
1044                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1045                 /*quirks*/DA_Q_4K
1046         },
1047         {
1048                 /*
1049                  * Kingston HyperX 3k SSDs
1050                  * 4k optimised & trim only works in 4k requests + 4k aligned
1051                  */
1052                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1053                 /*quirks*/DA_Q_4K
1054         },
1055         {
1056                 /*
1057                  * Marvell SSDs (entry taken from OpenSolaris)
1058                  * 4k optimised & trim only works in 4k requests + 4k aligned
1059                  */
1060                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1061                 /*quirks*/DA_Q_4K
1062         },
1063         {
1064                 /*
1065                  * OCZ Agility 2 SSDs
1066                  * 4k optimised & trim only works in 4k requests + 4k aligned
1067                  */
1068                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1069                 /*quirks*/DA_Q_4K
1070         },
1071         {
1072                 /*
1073                  * OCZ Agility 3 SSDs
1074                  * 4k optimised & trim only works in 4k requests + 4k aligned
1075                  */
1076                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1077                 /*quirks*/DA_Q_4K
1078         },
1079         {
1080                 /*
1081                  * OCZ Deneva R Series SSDs
1082                  * 4k optimised & trim only works in 4k requests + 4k aligned
1083                  */
1084                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1085                 /*quirks*/DA_Q_4K
1086         },
1087         {
1088                 /*
1089                  * OCZ Vertex 2 SSDs (inc pro series)
1090                  * 4k optimised & trim only works in 4k requests + 4k aligned
1091                  */
1092                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1093                 /*quirks*/DA_Q_4K
1094         },
1095         {
1096                 /*
1097                  * OCZ Vertex 3 SSDs
1098                  * 4k optimised & trim only works in 4k requests + 4k aligned
1099                  */
1100                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1101                 /*quirks*/DA_Q_4K
1102         },
1103         {
1104                 /*
1105                  * OCZ Vertex 4 SSDs
1106                  * 4k optimised & trim only works in 4k requests + 4k aligned
1107                  */
1108                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1109                 /*quirks*/DA_Q_4K
1110         },
1111         {
1112                 /*
1113                  * Samsung 830 Series SSDs
1114                  * 4k optimised & trim only works in 4k requests + 4k aligned
1115                  */
1116                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1117                 /*quirks*/DA_Q_4K
1118         },
1119         {
1120                 /*
1121                  * Samsung 840 SSDs
1122                  * 4k optimised & trim only works in 4k requests + 4k aligned
1123                  */
1124                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1125                 /*quirks*/DA_Q_4K
1126         },
1127         {
1128                 /*
1129                  * Samsung 843T Series SSDs
1130                  * 4k optimised
1131                  */
1132                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7WD*", "*" },
1133                 /*quirks*/DA_Q_4K
1134         },
1135         {
1136                 /*
1137                  * SuperTalent TeraDrive CT SSDs
1138                  * 4k optimised & trim only works in 4k requests + 4k aligned
1139                  */
1140                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1141                 /*quirks*/DA_Q_4K
1142         },
1143         {
1144                 /*
1145                  * XceedIOPS SATA SSDs
1146                  * 4k optimised
1147                  */
1148                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1149                 /*quirks*/DA_Q_4K
1150         },
1151 };
1152
1153 static  disk_strategy_t dastrategy;
1154 static  dumper_t        dadump;
1155 static  periph_init_t   dainit;
1156 static  void            daasync(void *callback_arg, u_int32_t code,
1157                                 struct cam_path *path, void *arg);
1158 static  void            dasysctlinit(void *context, int pending);
1159 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1160 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1161 static  int             dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1162 static  void            dadeletemethodset(struct da_softc *softc,
1163                                           da_delete_methods delete_method);
1164 static  off_t           dadeletemaxsize(struct da_softc *softc,
1165                                         da_delete_methods delete_method);
1166 static  void            dadeletemethodchoose(struct da_softc *softc,
1167                                              da_delete_methods default_method);
1168 static  void            daprobedone(struct cam_periph *periph, union ccb *ccb);
1169
1170 static  periph_ctor_t   daregister;
1171 static  periph_dtor_t   dacleanup;
1172 static  periph_start_t  dastart;
1173 static  periph_oninv_t  daoninvalidate;
1174 static  void            dadone(struct cam_periph *periph,
1175                                union ccb *done_ccb);
1176 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
1177                                 u_int32_t sense_flags);
1178 static void             daprevent(struct cam_periph *periph, int action);
1179 static void             dareprobe(struct cam_periph *periph);
1180 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
1181                                   uint64_t maxsector,
1182                                   struct scsi_read_capacity_data_long *rcaplong,
1183                                   size_t rcap_size);
1184 static timeout_t        dasendorderedtag;
1185 static void             dashutdown(void *arg, int howto);
1186 static timeout_t        damediapoll;
1187
1188 #ifndef DA_DEFAULT_POLL_PERIOD
1189 #define DA_DEFAULT_POLL_PERIOD  3
1190 #endif
1191
1192 #ifndef DA_DEFAULT_TIMEOUT
1193 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
1194 #endif
1195
1196 #ifndef DA_DEFAULT_RETRY
1197 #define DA_DEFAULT_RETRY        4
1198 #endif
1199
1200 #ifndef DA_DEFAULT_SEND_ORDERED
1201 #define DA_DEFAULT_SEND_ORDERED 1
1202 #endif
1203
1204 #define DA_SIO (softc->sort_io_queue >= 0 ? \
1205     softc->sort_io_queue : cam_sort_io_queues)
1206
1207 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1208 static int da_retry_count = DA_DEFAULT_RETRY;
1209 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1210 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1211
1212 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1213             "CAM Direct Access Disk driver");
1214 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RWTUN,
1215            &da_poll_period, 0, "Media polling period in seconds");
1216 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RWTUN,
1217            &da_retry_count, 0, "Normal I/O retry count");
1218 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RWTUN,
1219            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1220 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RWTUN,
1221            &da_send_ordered, 0, "Send Ordered Tags");
1222
1223 /*
1224  * DA_ORDEREDTAG_INTERVAL determines how often, relative
1225  * to the default timeout, we check to see whether an ordered
1226  * tagged transaction is appropriate to prevent simple tag
1227  * starvation.  Since we'd like to ensure that there is at least
1228  * 1/2 of the timeout length left for a starved transaction to
1229  * complete after we've sent an ordered tag, we must poll at least
1230  * four times in every timeout period.  This takes care of the worst
1231  * case where a starved transaction starts during an interval that
1232  * meets the requirement "don't send an ordered tag" test so it takes
1233  * us two intervals to determine that a tag must be sent.
1234  */
1235 #ifndef DA_ORDEREDTAG_INTERVAL
1236 #define DA_ORDEREDTAG_INTERVAL 4
1237 #endif
1238
1239 static struct periph_driver dadriver =
1240 {
1241         dainit, "da",
1242         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1243 };
1244
1245 PERIPHDRIVER_DECLARE(da, dadriver);
1246
1247 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1248
1249 static int
1250 daopen(struct disk *dp)
1251 {
1252         struct cam_periph *periph;
1253         struct da_softc *softc;
1254         int error;
1255
1256         periph = (struct cam_periph *)dp->d_drv1;
1257         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1258                 return (ENXIO);
1259         }
1260
1261         cam_periph_lock(periph);
1262         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1263                 cam_periph_unlock(periph);
1264                 cam_periph_release(periph);
1265                 return (error);
1266         }
1267
1268         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1269             ("daopen\n"));
1270
1271         softc = (struct da_softc *)periph->softc;
1272         dareprobe(periph);
1273
1274         /* Wait for the disk size update.  */
1275         error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1276             "dareprobe", 0);
1277         if (error != 0)
1278                 xpt_print(periph->path, "unable to retrieve capacity data\n");
1279
1280         if (periph->flags & CAM_PERIPH_INVALID)
1281                 error = ENXIO;
1282
1283         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1284             (softc->quirks & DA_Q_NO_PREVENT) == 0)
1285                 daprevent(periph, PR_PREVENT);
1286
1287         if (error == 0) {
1288                 softc->flags &= ~DA_FLAG_PACK_INVALID;
1289                 softc->flags |= DA_FLAG_OPEN;
1290         }
1291
1292         cam_periph_unhold(periph);
1293         cam_periph_unlock(periph);
1294
1295         if (error != 0)
1296                 cam_periph_release(periph);
1297
1298         return (error);
1299 }
1300
1301 static int
1302 daclose(struct disk *dp)
1303 {
1304         struct  cam_periph *periph;
1305         struct  da_softc *softc;
1306         union   ccb *ccb;
1307         int error;
1308
1309         periph = (struct cam_periph *)dp->d_drv1;
1310         softc = (struct da_softc *)periph->softc;
1311         cam_periph_lock(periph);
1312         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1313             ("daclose\n"));
1314
1315         if (cam_periph_hold(periph, PRIBIO) == 0) {
1316
1317                 /* Flush disk cache. */
1318                 if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1319                     (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1320                     (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1321                         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1322                         scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1323                             /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1324                             /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1325                             5 * 60 * 1000);
1326                         error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1327                             /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1328                             softc->disk->d_devstat);
1329                         if (error == 0)
1330                                 softc->flags &= ~DA_FLAG_DIRTY;
1331                         xpt_release_ccb(ccb);
1332                 }
1333
1334                 /* Allow medium removal. */
1335                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1336                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
1337                         daprevent(periph, PR_ALLOW);
1338
1339                 cam_periph_unhold(periph);
1340         }
1341
1342         /*
1343          * If we've got removeable media, mark the blocksize as
1344          * unavailable, since it could change when new media is
1345          * inserted.
1346          */
1347         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1348                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1349
1350         softc->flags &= ~DA_FLAG_OPEN;
1351         while (softc->refcount != 0)
1352                 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1353         cam_periph_unlock(periph);
1354         cam_periph_release(periph);
1355         return (0);
1356 }
1357
1358 static void
1359 daschedule(struct cam_periph *periph)
1360 {
1361         struct da_softc *softc = (struct da_softc *)periph->softc;
1362
1363         if (softc->state != DA_STATE_NORMAL)
1364                 return;
1365
1366         /* Check if we have more work to do. */
1367         if (bioq_first(&softc->bio_queue) ||
1368             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1369             softc->tur) {
1370                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1371         }
1372 }
1373
1374 /*
1375  * Actually translate the requested transfer into one the physical driver
1376  * can understand.  The transfer is described by a buf and will include
1377  * only one physical transfer.
1378  */
1379 static void
1380 dastrategy(struct bio *bp)
1381 {
1382         struct cam_periph *periph;
1383         struct da_softc *softc;
1384
1385         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1386         softc = (struct da_softc *)periph->softc;
1387
1388         cam_periph_lock(periph);
1389
1390         /*
1391          * If the device has been made invalid, error out
1392          */
1393         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1394                 cam_periph_unlock(periph);
1395                 biofinish(bp, NULL, ENXIO);
1396                 return;
1397         }
1398
1399         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1400
1401         /*
1402          * Place it in the queue of disk activities for this disk
1403          */
1404         if (bp->bio_cmd == BIO_DELETE) {
1405                 bioq_disksort(&softc->delete_queue, bp);
1406         } else if (DA_SIO) {
1407                 bioq_disksort(&softc->bio_queue, bp);
1408         } else {
1409                 bioq_insert_tail(&softc->bio_queue, bp);
1410         }
1411
1412         /*
1413          * Schedule ourselves for performing the work.
1414          */
1415         daschedule(periph);
1416         cam_periph_unlock(periph);
1417
1418         return;
1419 }
1420
1421 static int
1422 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1423 {
1424         struct      cam_periph *periph;
1425         struct      da_softc *softc;
1426         u_int       secsize;
1427         struct      ccb_scsiio csio;
1428         struct      disk *dp;
1429         int         error = 0;
1430
1431         dp = arg;
1432         periph = dp->d_drv1;
1433         softc = (struct da_softc *)periph->softc;
1434         cam_periph_lock(periph);
1435         secsize = softc->params.secsize;
1436
1437         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1438                 cam_periph_unlock(periph);
1439                 return (ENXIO);
1440         }
1441
1442         if (length > 0) {
1443                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1444                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1445                 scsi_read_write(&csio,
1446                                 /*retries*/0,
1447                                 dadone,
1448                                 MSG_ORDERED_Q_TAG,
1449                                 /*read*/SCSI_RW_WRITE,
1450                                 /*byte2*/0,
1451                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1452                                 offset / secsize,
1453                                 length / secsize,
1454                                 /*data_ptr*/(u_int8_t *) virtual,
1455                                 /*dxfer_len*/length,
1456                                 /*sense_len*/SSD_FULL_SIZE,
1457                                 da_default_timeout * 1000);
1458                 xpt_polled_action((union ccb *)&csio);
1459
1460                 error = cam_periph_error((union ccb *)&csio,
1461                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1462                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1463                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1464                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1465                 if (error != 0)
1466                         printf("Aborting dump due to I/O error.\n");
1467                 cam_periph_unlock(periph);
1468                 return (error);
1469         }
1470
1471         /*
1472          * Sync the disk cache contents to the physical media.
1473          */
1474         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1475
1476                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1477                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1478                 scsi_synchronize_cache(&csio,
1479                                        /*retries*/0,
1480                                        /*cbfcnp*/dadone,
1481                                        MSG_SIMPLE_Q_TAG,
1482                                        /*begin_lba*/0,/* Cover the whole disk */
1483                                        /*lb_count*/0,
1484                                        SSD_FULL_SIZE,
1485                                        5 * 60 * 1000);
1486                 xpt_polled_action((union ccb *)&csio);
1487
1488                 error = cam_periph_error((union ccb *)&csio,
1489                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1490                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1491                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1492                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1493                 if (error != 0)
1494                         xpt_print(periph->path, "Synchronize cache failed\n");
1495         }
1496         cam_periph_unlock(periph);
1497         return (error);
1498 }
1499
1500 static int
1501 dagetattr(struct bio *bp)
1502 {
1503         int ret;
1504         struct cam_periph *periph;
1505
1506         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1507         cam_periph_lock(periph);
1508         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1509             periph->path);
1510         cam_periph_unlock(periph);
1511         if (ret == 0)
1512                 bp->bio_completed = bp->bio_length;
1513         return ret;
1514 }
1515
1516 static void
1517 dainit(void)
1518 {
1519         cam_status status;
1520
1521         /*
1522          * Install a global async callback.  This callback will
1523          * receive async callbacks like "new device found".
1524          */
1525         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1526
1527         if (status != CAM_REQ_CMP) {
1528                 printf("da: Failed to attach master async callback "
1529                        "due to status 0x%x!\n", status);
1530         } else if (da_send_ordered) {
1531
1532                 /* Register our shutdown event handler */
1533                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1534                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1535                     printf("dainit: shutdown event registration failed!\n");
1536         }
1537 }
1538
1539 /*
1540  * Callback from GEOM, called when it has finished cleaning up its
1541  * resources.
1542  */
1543 static void
1544 dadiskgonecb(struct disk *dp)
1545 {
1546         struct cam_periph *periph;
1547
1548         periph = (struct cam_periph *)dp->d_drv1;
1549         cam_periph_release(periph);
1550 }
1551
1552 static void
1553 daoninvalidate(struct cam_periph *periph)
1554 {
1555         struct da_softc *softc;
1556
1557         softc = (struct da_softc *)periph->softc;
1558
1559         /*
1560          * De-register any async callbacks.
1561          */
1562         xpt_register_async(0, daasync, periph, periph->path);
1563
1564         softc->flags |= DA_FLAG_PACK_INVALID;
1565
1566         /*
1567          * Return all queued I/O with ENXIO.
1568          * XXX Handle any transactions queued to the card
1569          *     with XPT_ABORT_CCB.
1570          */
1571         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1572         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1573
1574         /*
1575          * Tell GEOM that we've gone away, we'll get a callback when it is
1576          * done cleaning up its resources.
1577          */
1578         disk_gone(softc->disk);
1579 }
1580
1581 static void
1582 dacleanup(struct cam_periph *periph)
1583 {
1584         struct da_softc *softc;
1585
1586         softc = (struct da_softc *)periph->softc;
1587
1588         cam_periph_unlock(periph);
1589
1590         /*
1591          * If we can't free the sysctl tree, oh well...
1592          */
1593         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1594             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1595                 xpt_print(periph->path, "can't remove sysctl context\n");
1596         }
1597
1598         callout_drain(&softc->mediapoll_c);
1599         disk_destroy(softc->disk);
1600         callout_drain(&softc->sendordered_c);
1601         free(softc, M_DEVBUF);
1602         cam_periph_lock(periph);
1603 }
1604
1605 static void
1606 daasync(void *callback_arg, u_int32_t code,
1607         struct cam_path *path, void *arg)
1608 {
1609         struct cam_periph *periph;
1610         struct da_softc *softc;
1611
1612         periph = (struct cam_periph *)callback_arg;
1613         switch (code) {
1614         case AC_FOUND_DEVICE:
1615         {
1616                 struct ccb_getdev *cgd;
1617                 cam_status status;
1618
1619                 cgd = (struct ccb_getdev *)arg;
1620                 if (cgd == NULL)
1621                         break;
1622
1623                 if (cgd->protocol != PROTO_SCSI)
1624                         break;
1625
1626                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1627                     && SID_TYPE(&cgd->inq_data) != T_RBC
1628                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1629                         break;
1630
1631                 /*
1632                  * Allocate a peripheral instance for
1633                  * this device and start the probe
1634                  * process.
1635                  */
1636                 status = cam_periph_alloc(daregister, daoninvalidate,
1637                                           dacleanup, dastart,
1638                                           "da", CAM_PERIPH_BIO,
1639                                           path, daasync,
1640                                           AC_FOUND_DEVICE, cgd);
1641
1642                 if (status != CAM_REQ_CMP
1643                  && status != CAM_REQ_INPROG)
1644                         printf("daasync: Unable to attach to new device "
1645                                 "due to status 0x%x\n", status);
1646                 return;
1647         }
1648         case AC_ADVINFO_CHANGED:
1649         {
1650                 uintptr_t buftype;
1651
1652                 buftype = (uintptr_t)arg;
1653                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1654                         struct da_softc *softc;
1655
1656                         softc = periph->softc;
1657                         disk_attr_changed(softc->disk, "GEOM::physpath",
1658                                           M_NOWAIT);
1659                 }
1660                 break;
1661         }
1662         case AC_UNIT_ATTENTION:
1663         {
1664                 union ccb *ccb;
1665                 int error_code, sense_key, asc, ascq;
1666
1667                 softc = (struct da_softc *)periph->softc;
1668                 ccb = (union ccb *)arg;
1669
1670                 /*
1671                  * Handle all UNIT ATTENTIONs except our own,
1672                  * as they will be handled by daerror().
1673                  */
1674                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1675                     scsi_extract_sense_ccb(ccb,
1676                      &error_code, &sense_key, &asc, &ascq)) {
1677                         if (asc == 0x2A && ascq == 0x09) {
1678                                 xpt_print(ccb->ccb_h.path,
1679                                     "Capacity data has changed\n");
1680                                 softc->flags &= ~DA_FLAG_PROBED;
1681                                 dareprobe(periph);
1682                         } else if (asc == 0x28 && ascq == 0x00) {
1683                                 softc->flags &= ~DA_FLAG_PROBED;
1684                                 disk_media_changed(softc->disk, M_NOWAIT);
1685                         } else if (asc == 0x3F && ascq == 0x03) {
1686                                 xpt_print(ccb->ccb_h.path,
1687                                     "INQUIRY data has changed\n");
1688                                 softc->flags &= ~DA_FLAG_PROBED;
1689                                 dareprobe(periph);
1690                         }
1691                 }
1692                 cam_periph_async(periph, code, path, arg);
1693                 break;
1694         }
1695         case AC_SCSI_AEN:
1696                 softc = (struct da_softc *)periph->softc;
1697                 if (!softc->tur) {
1698                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1699                                 softc->tur = 1;
1700                                 daschedule(periph);
1701                         }
1702                 }
1703                 /* FALLTHROUGH */
1704         case AC_SENT_BDR:
1705         case AC_BUS_RESET:
1706         {
1707                 struct ccb_hdr *ccbh;
1708
1709                 softc = (struct da_softc *)periph->softc;
1710                 /*
1711                  * Don't fail on the expected unit attention
1712                  * that will occur.
1713                  */
1714                 softc->flags |= DA_FLAG_RETRY_UA;
1715                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1716                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1717                 break;
1718         }
1719         default:
1720                 break;
1721         }
1722         cam_periph_async(periph, code, path, arg);
1723 }
1724
1725 static void
1726 dasysctlinit(void *context, int pending)
1727 {
1728         struct cam_periph *periph;
1729         struct da_softc *softc;
1730         char tmpstr[80], tmpstr2[80];
1731         struct ccb_trans_settings cts;
1732
1733         periph = (struct cam_periph *)context;
1734         /*
1735          * periph was held for us when this task was enqueued
1736          */
1737         if (periph->flags & CAM_PERIPH_INVALID) {
1738                 cam_periph_release(periph);
1739                 return;
1740         }
1741
1742         softc = (struct da_softc *)periph->softc;
1743         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1744         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1745
1746         sysctl_ctx_init(&softc->sysctl_ctx);
1747         softc->flags |= DA_FLAG_SCTX_INIT;
1748         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1749                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1750                 CTLFLAG_RD, 0, tmpstr);
1751         if (softc->sysctl_tree == NULL) {
1752                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1753                 cam_periph_release(periph);
1754                 return;
1755         }
1756
1757         /*
1758          * Now register the sysctl handler, so the user can change the value on
1759          * the fly.
1760          */
1761         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1762                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1763                 softc, 0, dadeletemethodsysctl, "A",
1764                 "BIO_DELETE execution method");
1765         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1766                 OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1767                 softc, 0, dadeletemaxsysctl, "Q",
1768                 "Maximum BIO_DELETE size");
1769         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1770                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1771                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1772                 "Minimum CDB size");
1773         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1774                 OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1775                 "Sort IO queue to try and optimise disk access patterns");
1776
1777         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1778                        SYSCTL_CHILDREN(softc->sysctl_tree),
1779                        OID_AUTO,
1780                        "error_inject",
1781                        CTLFLAG_RW,
1782                        &softc->error_inject,
1783                        0,
1784                        "error_inject leaf");
1785
1786
1787         /*
1788          * Add some addressing info.
1789          */
1790         memset(&cts, 0, sizeof (cts));
1791         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1792         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1793         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1794         cam_periph_lock(periph);
1795         xpt_action((union ccb *)&cts);
1796         cam_periph_unlock(periph);
1797         if (cts.ccb_h.status != CAM_REQ_CMP) {
1798                 cam_periph_release(periph);
1799                 return;
1800         }
1801         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1802                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1803                 if (fc->valid & CTS_FC_VALID_WWPN) {
1804                         softc->wwpn = fc->wwpn;
1805                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1806                             SYSCTL_CHILDREN(softc->sysctl_tree),
1807                             OID_AUTO, "wwpn", CTLFLAG_RD,
1808                             &softc->wwpn, "World Wide Port Name");
1809                 }
1810         }
1811         cam_periph_release(periph);
1812 }
1813
1814 static int
1815 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1816 {
1817         int error;
1818         uint64_t value;
1819         struct da_softc *softc;
1820
1821         softc = (struct da_softc *)arg1;
1822
1823         value = softc->disk->d_delmaxsize;
1824         error = sysctl_handle_64(oidp, &value, 0, req);
1825         if ((error != 0) || (req->newptr == NULL))
1826                 return (error);
1827
1828         /* only accept values smaller than the calculated value */
1829         if (value > dadeletemaxsize(softc, softc->delete_method)) {
1830                 return (EINVAL);
1831         }
1832         softc->disk->d_delmaxsize = value;
1833
1834         return (0);
1835 }
1836
1837 static int
1838 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1839 {
1840         int error, value;
1841
1842         value = *(int *)arg1;
1843
1844         error = sysctl_handle_int(oidp, &value, 0, req);
1845
1846         if ((error != 0)
1847          || (req->newptr == NULL))
1848                 return (error);
1849
1850         /*
1851          * Acceptable values here are 6, 10, 12 or 16.
1852          */
1853         if (value < 6)
1854                 value = 6;
1855         else if ((value > 6)
1856               && (value <= 10))
1857                 value = 10;
1858         else if ((value > 10)
1859               && (value <= 12))
1860                 value = 12;
1861         else if (value > 12)
1862                 value = 16;
1863
1864         *(int *)arg1 = value;
1865
1866         return (0);
1867 }
1868
1869 static void
1870 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1871 {
1872
1873
1874         softc->delete_method = delete_method;
1875         softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1876         softc->delete_func = da_delete_functions[delete_method];
1877
1878         if (softc->delete_method > DA_DELETE_DISABLE)
1879                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
1880         else
1881                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1882 }
1883
1884 static off_t
1885 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1886 {
1887         off_t sectors;
1888
1889         switch(delete_method) {
1890         case DA_DELETE_UNMAP:
1891                 sectors = (off_t)softc->unmap_max_lba;
1892                 break;
1893         case DA_DELETE_ATA_TRIM:
1894                 sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1895                 break;
1896         case DA_DELETE_WS16:
1897                 sectors = (off_t)min(softc->ws_max_blks, WS16_MAX_BLKS);
1898                 break;
1899         case DA_DELETE_ZERO:
1900         case DA_DELETE_WS10:
1901                 sectors = (off_t)min(softc->ws_max_blks, WS10_MAX_BLKS);
1902                 break;
1903         default:
1904                 return 0;
1905         }
1906
1907         return (off_t)softc->params.secsize *
1908             min(sectors, (off_t)softc->params.sectors);
1909 }
1910
1911 static void
1912 daprobedone(struct cam_periph *periph, union ccb *ccb)
1913 {
1914         struct da_softc *softc;
1915
1916         softc = (struct da_softc *)periph->softc;
1917
1918         dadeletemethodchoose(softc, DA_DELETE_NONE);
1919
1920         if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1921                 char buf[80];
1922                 int i, sep;
1923
1924                 snprintf(buf, sizeof(buf), "Delete methods: <");
1925                 sep = 0;
1926                 for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1927                         if (softc->delete_available & (1 << i)) {
1928                                 if (sep) {
1929                                         strlcat(buf, ",", sizeof(buf));
1930                                 } else {
1931                                     sep = 1;
1932                                 }
1933                                 strlcat(buf, da_delete_method_names[i],
1934                                     sizeof(buf));
1935                                 if (i == softc->delete_method) {
1936                                         strlcat(buf, "(*)", sizeof(buf));
1937                                 }
1938                         }
1939                 }
1940                 if (sep == 0) {
1941                         if (softc->delete_method == DA_DELETE_NONE)
1942                                 strlcat(buf, "NONE(*)", sizeof(buf));
1943                         else
1944                                 strlcat(buf, "DISABLED(*)", sizeof(buf));
1945                 }
1946                 strlcat(buf, ">", sizeof(buf));
1947                 printf("%s%d: %s\n", periph->periph_name,
1948                     periph->unit_number, buf);
1949         }
1950
1951         /*
1952          * Since our peripheral may be invalidated by an error
1953          * above or an external event, we must release our CCB
1954          * before releasing the probe lock on the peripheral.
1955          * The peripheral will only go away once the last lock
1956          * is removed, and we need it around for the CCB release
1957          * operation.
1958          */
1959         xpt_release_ccb(ccb);
1960         softc->state = DA_STATE_NORMAL;
1961         softc->flags |= DA_FLAG_PROBED;
1962         daschedule(periph);
1963         wakeup(&softc->disk->d_mediasize);
1964         if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1965                 softc->flags |= DA_FLAG_ANNOUNCED;
1966                 cam_periph_unhold(periph);
1967         } else
1968                 cam_periph_release_locked(periph);
1969 }
1970
1971 static void
1972 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
1973 {
1974         int i, delete_method;
1975
1976         delete_method = default_method;
1977
1978         /*
1979          * Use the pre-defined order to choose the best
1980          * performing delete.
1981          */
1982         for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1983                 if (softc->delete_available & (1 << i)) {
1984                         dadeletemethodset(softc, i);
1985                         return;
1986                 }
1987         }
1988         dadeletemethodset(softc, delete_method);
1989 }
1990
1991 static int
1992 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
1993 {
1994         char buf[16];
1995         const char *p;
1996         struct da_softc *softc;
1997         int i, error, methods, value;
1998
1999         softc = (struct da_softc *)arg1;
2000
2001         value = softc->delete_method;
2002         if (value < 0 || value > DA_DELETE_MAX)
2003                 p = "UNKNOWN";
2004         else
2005                 p = da_delete_method_names[value];
2006         strncpy(buf, p, sizeof(buf));
2007         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2008         if (error != 0 || req->newptr == NULL)
2009                 return (error);
2010         methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2011         for (i = 0; i <= DA_DELETE_MAX; i++) {
2012                 if (!(methods & (1 << i)) ||
2013                     strcmp(buf, da_delete_method_names[i]) != 0)
2014                         continue;
2015                 dadeletemethodset(softc, i);
2016                 return (0);
2017         }
2018         return (EINVAL);
2019 }
2020
2021 static cam_status
2022 daregister(struct cam_periph *periph, void *arg)
2023 {
2024         struct da_softc *softc;
2025         struct ccb_pathinq cpi;
2026         struct ccb_getdev *cgd;
2027         char tmpstr[80];
2028         caddr_t match;
2029
2030         cgd = (struct ccb_getdev *)arg;
2031         if (cgd == NULL) {
2032                 printf("daregister: no getdev CCB, can't register device\n");
2033                 return(CAM_REQ_CMP_ERR);
2034         }
2035
2036         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2037             M_NOWAIT|M_ZERO);
2038
2039         if (softc == NULL) {
2040                 printf("daregister: Unable to probe new device. "
2041                        "Unable to allocate softc\n");
2042                 return(CAM_REQ_CMP_ERR);
2043         }
2044
2045         LIST_INIT(&softc->pending_ccbs);
2046         softc->state = DA_STATE_PROBE_RC;
2047         bioq_init(&softc->bio_queue);
2048         bioq_init(&softc->delete_queue);
2049         bioq_init(&softc->delete_run_queue);
2050         if (SID_IS_REMOVABLE(&cgd->inq_data))
2051                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
2052         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2053         softc->unmap_max_lba = UNMAP_RANGE_MAX;
2054         softc->ws_max_blks = WS16_MAX_BLKS;
2055         softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2056         softc->sort_io_queue = -1;
2057
2058         periph->softc = softc;
2059
2060         /*
2061          * See if this device has any quirks.
2062          */
2063         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2064                                (caddr_t)da_quirk_table,
2065                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2066                                sizeof(*da_quirk_table), scsi_inquiry_match);
2067
2068         if (match != NULL)
2069                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2070         else
2071                 softc->quirks = DA_Q_NONE;
2072
2073         /* Check if the SIM does not want 6 byte commands */
2074         bzero(&cpi, sizeof(cpi));
2075         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2076         cpi.ccb_h.func_code = XPT_PATH_INQ;
2077         xpt_action((union ccb *)&cpi);
2078         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2079                 softc->quirks |= DA_Q_NO_6_BYTE;
2080
2081         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2082
2083         /*
2084          * Take an exclusive refcount on the periph while dastart is called
2085          * to finish the probe.  The reference will be dropped in dadone at
2086          * the end of probe.
2087          */
2088         (void)cam_periph_hold(periph, PRIBIO);
2089
2090         /*
2091          * Schedule a periodic event to occasionally send an
2092          * ordered tag to a device.
2093          */
2094         callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2095         callout_reset(&softc->sendordered_c,
2096             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2097             dasendorderedtag, softc);
2098
2099         cam_periph_unlock(periph);
2100         /*
2101          * RBC devices don't have to support READ(6), only READ(10).
2102          */
2103         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2104                 softc->minimum_cmd_size = 10;
2105         else
2106                 softc->minimum_cmd_size = 6;
2107
2108         /*
2109          * Load the user's default, if any.
2110          */
2111         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2112                  periph->unit_number);
2113         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2114
2115         /*
2116          * 6, 10, 12 and 16 are the currently permissible values.
2117          */
2118         if (softc->minimum_cmd_size < 6)
2119                 softc->minimum_cmd_size = 6;
2120         else if ((softc->minimum_cmd_size > 6)
2121               && (softc->minimum_cmd_size <= 10))
2122                 softc->minimum_cmd_size = 10;
2123         else if ((softc->minimum_cmd_size > 10)
2124               && (softc->minimum_cmd_size <= 12))
2125                 softc->minimum_cmd_size = 12;
2126         else if (softc->minimum_cmd_size > 12)
2127                 softc->minimum_cmd_size = 16;
2128
2129         /* Predict whether device may support READ CAPACITY(16). */
2130         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2131             (softc->quirks & DA_Q_NO_RC16) == 0) {
2132                 softc->flags |= DA_FLAG_CAN_RC16;
2133                 softc->state = DA_STATE_PROBE_RC16;
2134         }
2135
2136         /*
2137          * Register this media as a disk.
2138          */
2139         softc->disk = disk_alloc();
2140         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2141                           periph->unit_number, 0,
2142                           DEVSTAT_BS_UNAVAILABLE,
2143                           SID_TYPE(&cgd->inq_data) |
2144                           XPORT_DEVSTAT_TYPE(cpi.transport),
2145                           DEVSTAT_PRIORITY_DISK);
2146         softc->disk->d_open = daopen;
2147         softc->disk->d_close = daclose;
2148         softc->disk->d_strategy = dastrategy;
2149         softc->disk->d_dump = dadump;
2150         softc->disk->d_getattr = dagetattr;
2151         softc->disk->d_gone = dadiskgonecb;
2152         softc->disk->d_name = "da";
2153         softc->disk->d_drv1 = periph;
2154         if (cpi.maxio == 0)
2155                 softc->maxio = DFLTPHYS;        /* traditional default */
2156         else if (cpi.maxio > MAXPHYS)
2157                 softc->maxio = MAXPHYS;         /* for safety */
2158         else
2159                 softc->maxio = cpi.maxio;
2160         softc->disk->d_maxsize = softc->maxio;
2161         softc->disk->d_unit = periph->unit_number;
2162         softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2163         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2164                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2165         if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2166                 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2167         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2168             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2169         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2170         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2171             cgd->inq_data.product, sizeof(cgd->inq_data.product),
2172             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2173         softc->disk->d_hba_vendor = cpi.hba_vendor;
2174         softc->disk->d_hba_device = cpi.hba_device;
2175         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2176         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2177
2178         /*
2179          * Acquire a reference to the periph before we register with GEOM.
2180          * We'll release this reference once GEOM calls us back (via
2181          * dadiskgonecb()) telling us that our provider has been freed.
2182          */
2183         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2184                 xpt_print(periph->path, "%s: lost periph during "
2185                           "registration!\n", __func__);
2186                 cam_periph_lock(periph);
2187                 return (CAM_REQ_CMP_ERR);
2188         }
2189
2190         disk_create(softc->disk, DISK_VERSION);
2191         cam_periph_lock(periph);
2192
2193         /*
2194          * Add async callbacks for events of interest.
2195          * I don't bother checking if this fails as,
2196          * in most cases, the system will function just
2197          * fine without them and the only alternative
2198          * would be to not attach the device on failure.
2199          */
2200         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2201             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
2202             daasync, periph, periph->path);
2203
2204         /*
2205          * Emit an attribute changed notification just in case
2206          * physical path information arrived before our async
2207          * event handler was registered, but after anyone attaching
2208          * to our disk device polled it.
2209          */
2210         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2211
2212         /*
2213          * Schedule a periodic media polling events.
2214          */
2215         callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2216         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2217             (cgd->inq_flags & SID_AEN) == 0 &&
2218             da_poll_period != 0)
2219                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2220                     damediapoll, periph);
2221
2222         xpt_schedule(periph, CAM_PRIORITY_DEV);
2223
2224         return(CAM_REQ_CMP);
2225 }
2226
2227 static void
2228 dastart(struct cam_periph *periph, union ccb *start_ccb)
2229 {
2230         struct da_softc *softc;
2231
2232         softc = (struct da_softc *)periph->softc;
2233
2234         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2235
2236 skipstate:
2237         switch (softc->state) {
2238         case DA_STATE_NORMAL:
2239         {
2240                 struct bio *bp;
2241                 uint8_t tag_code;
2242
2243                 /* Run BIO_DELETE if not running yet. */
2244                 if (!softc->delete_running &&
2245                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
2246                         if (softc->delete_func != NULL) {
2247                                 softc->delete_func(periph, start_ccb, bp);
2248                                 goto out;
2249                         } else {
2250                                 bioq_flush(&softc->delete_queue, NULL, 0);
2251                                 /* FALLTHROUGH */
2252                         }
2253                 }
2254
2255                 /* Run regular command. */
2256                 bp = bioq_takefirst(&softc->bio_queue);
2257                 if (bp == NULL) {
2258                         if (softc->tur) {
2259                                 softc->tur = 0;
2260                                 scsi_test_unit_ready(&start_ccb->csio,
2261                                      /*retries*/ da_retry_count,
2262                                      dadone,
2263                                      MSG_SIMPLE_Q_TAG,
2264                                      SSD_FULL_SIZE,
2265                                      da_default_timeout * 1000);
2266                                 start_ccb->ccb_h.ccb_bp = NULL;
2267                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2268                                 xpt_action(start_ccb);
2269                         } else
2270                                 xpt_release_ccb(start_ccb);
2271                         break;
2272                 }
2273                 if (softc->tur) {
2274                         softc->tur = 0;
2275                         cam_periph_release_locked(periph);
2276                 }
2277
2278                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2279                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2280                         softc->flags &= ~DA_FLAG_NEED_OTAG;
2281                         softc->flags |= DA_FLAG_WAS_OTAG;
2282                         tag_code = MSG_ORDERED_Q_TAG;
2283                 } else {
2284                         tag_code = MSG_SIMPLE_Q_TAG;
2285                 }
2286
2287                 switch (bp->bio_cmd) {
2288                 case BIO_WRITE:
2289                         softc->flags |= DA_FLAG_DIRTY;
2290                         /* FALLTHROUGH */
2291                 case BIO_READ:
2292                         scsi_read_write(&start_ccb->csio,
2293                                         /*retries*/da_retry_count,
2294                                         /*cbfcnp*/dadone,
2295                                         /*tag_action*/tag_code,
2296                                         /*read_op*/(bp->bio_cmd == BIO_READ ?
2297                                         SCSI_RW_READ : SCSI_RW_WRITE) |
2298                                         ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
2299                                         SCSI_RW_BIO : 0),
2300                                         /*byte2*/0,
2301                                         softc->minimum_cmd_size,
2302                                         /*lba*/bp->bio_pblkno,
2303                                         /*block_count*/bp->bio_bcount /
2304                                         softc->params.secsize,
2305                                         /*data_ptr*/ (bp->bio_flags &
2306                                         BIO_UNMAPPED) != 0 ? (void *)bp :
2307                                         bp->bio_data,
2308                                         /*dxfer_len*/ bp->bio_bcount,
2309                                         /*sense_len*/SSD_FULL_SIZE,
2310                                         da_default_timeout * 1000);
2311                         break;
2312                 case BIO_FLUSH:
2313                         /*
2314                          * BIO_FLUSH doesn't currently communicate
2315                          * range data, so we synchronize the cache
2316                          * over the whole disk.  We also force
2317                          * ordered tag semantics the flush applies
2318                          * to all previously queued I/O.
2319                          */
2320                         scsi_synchronize_cache(&start_ccb->csio,
2321                                                /*retries*/1,
2322                                                /*cbfcnp*/dadone,
2323                                                MSG_ORDERED_Q_TAG,
2324                                                /*begin_lba*/0,
2325                                                /*lb_count*/0,
2326                                                SSD_FULL_SIZE,
2327                                                da_default_timeout*1000);
2328                         break;
2329                 }
2330                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2331                 start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2332
2333 out:
2334                 LIST_INSERT_HEAD(&softc->pending_ccbs,
2335                                  &start_ccb->ccb_h, periph_links.le);
2336
2337                 /* We expect a unit attention from this device */
2338                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2339                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2340                         softc->flags &= ~DA_FLAG_RETRY_UA;
2341                 }
2342
2343                 start_ccb->ccb_h.ccb_bp = bp;
2344                 softc->refcount++;
2345                 cam_periph_unlock(periph);
2346                 xpt_action(start_ccb);
2347                 cam_periph_lock(periph);
2348                 softc->refcount--;
2349
2350                 /* May have more work to do, so ensure we stay scheduled */
2351                 daschedule(periph);
2352                 break;
2353         }
2354         case DA_STATE_PROBE_RC:
2355         {
2356                 struct scsi_read_capacity_data *rcap;
2357
2358                 rcap = (struct scsi_read_capacity_data *)
2359                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2360                 if (rcap == NULL) {
2361                         printf("dastart: Couldn't malloc read_capacity data\n");
2362                         /* da_free_periph??? */
2363                         break;
2364                 }
2365                 scsi_read_capacity(&start_ccb->csio,
2366                                    /*retries*/da_retry_count,
2367                                    dadone,
2368                                    MSG_SIMPLE_Q_TAG,
2369                                    rcap,
2370                                    SSD_FULL_SIZE,
2371                                    /*timeout*/5000);
2372                 start_ccb->ccb_h.ccb_bp = NULL;
2373                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2374                 xpt_action(start_ccb);
2375                 break;
2376         }
2377         case DA_STATE_PROBE_RC16:
2378         {
2379                 struct scsi_read_capacity_data_long *rcaplong;
2380
2381                 rcaplong = (struct scsi_read_capacity_data_long *)
2382                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2383                 if (rcaplong == NULL) {
2384                         printf("dastart: Couldn't malloc read_capacity data\n");
2385                         /* da_free_periph??? */
2386                         break;
2387                 }
2388                 scsi_read_capacity_16(&start_ccb->csio,
2389                                       /*retries*/ da_retry_count,
2390                                       /*cbfcnp*/ dadone,
2391                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
2392                                       /*lba*/ 0,
2393                                       /*reladr*/ 0,
2394                                       /*pmi*/ 0,
2395                                       /*rcap_buf*/ (uint8_t *)rcaplong,
2396                                       /*rcap_buf_len*/ sizeof(*rcaplong),
2397                                       /*sense_len*/ SSD_FULL_SIZE,
2398                                       /*timeout*/ da_default_timeout * 1000);
2399                 start_ccb->ccb_h.ccb_bp = NULL;
2400                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2401                 xpt_action(start_ccb);
2402                 break;
2403         }
2404         case DA_STATE_PROBE_LBP:
2405         {
2406                 struct scsi_vpd_logical_block_prov *lbp;
2407
2408                 if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2409                         /*
2410                          * If we get here we don't support any SBC-3 delete
2411                          * methods with UNMAP as the Logical Block Provisioning
2412                          * VPD page support is required for devices which
2413                          * support it according to T10/1799-D Revision 31
2414                          * however older revisions of the spec don't mandate
2415                          * this so we currently don't remove these methods
2416                          * from the available set.
2417                          */
2418                         softc->state = DA_STATE_PROBE_BLK_LIMITS;
2419                         goto skipstate;
2420                 }
2421
2422                 lbp = (struct scsi_vpd_logical_block_prov *)
2423                         malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2424
2425                 if (lbp == NULL) {
2426                         printf("dastart: Couldn't malloc lbp data\n");
2427                         /* da_free_periph??? */
2428                         break;
2429                 }
2430
2431                 scsi_inquiry(&start_ccb->csio,
2432                              /*retries*/da_retry_count,
2433                              /*cbfcnp*/dadone,
2434                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2435                              /*inq_buf*/(u_int8_t *)lbp,
2436                              /*inq_len*/sizeof(*lbp),
2437                              /*evpd*/TRUE,
2438                              /*page_code*/SVPD_LBP,
2439                              /*sense_len*/SSD_MIN_SIZE,
2440                              /*timeout*/da_default_timeout * 1000);
2441                 start_ccb->ccb_h.ccb_bp = NULL;
2442                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2443                 xpt_action(start_ccb);
2444                 break;
2445         }
2446         case DA_STATE_PROBE_BLK_LIMITS:
2447         {
2448                 struct scsi_vpd_block_limits *block_limits;
2449
2450                 if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2451                         /* Not supported skip to next probe */
2452                         softc->state = DA_STATE_PROBE_BDC;
2453                         goto skipstate;
2454                 }
2455
2456                 block_limits = (struct scsi_vpd_block_limits *)
2457                         malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2458
2459                 if (block_limits == NULL) {
2460                         printf("dastart: Couldn't malloc block_limits data\n");
2461                         /* da_free_periph??? */
2462                         break;
2463                 }
2464
2465                 scsi_inquiry(&start_ccb->csio,
2466                              /*retries*/da_retry_count,
2467                              /*cbfcnp*/dadone,
2468                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2469                              /*inq_buf*/(u_int8_t *)block_limits,
2470                              /*inq_len*/sizeof(*block_limits),
2471                              /*evpd*/TRUE,
2472                              /*page_code*/SVPD_BLOCK_LIMITS,
2473                              /*sense_len*/SSD_MIN_SIZE,
2474                              /*timeout*/da_default_timeout * 1000);
2475                 start_ccb->ccb_h.ccb_bp = NULL;
2476                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2477                 xpt_action(start_ccb);
2478                 break;
2479         }
2480         case DA_STATE_PROBE_BDC:
2481         {
2482                 struct scsi_vpd_block_characteristics *bdc;
2483
2484                 if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2485                         softc->state = DA_STATE_PROBE_ATA;
2486                         goto skipstate;
2487                 }
2488
2489                 bdc = (struct scsi_vpd_block_characteristics *)
2490                         malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2491
2492                 if (bdc == NULL) {
2493                         printf("dastart: Couldn't malloc bdc data\n");
2494                         /* da_free_periph??? */
2495                         break;
2496                 }
2497
2498                 scsi_inquiry(&start_ccb->csio,
2499                              /*retries*/da_retry_count,
2500                              /*cbfcnp*/dadone,
2501                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2502                              /*inq_buf*/(u_int8_t *)bdc,
2503                              /*inq_len*/sizeof(*bdc),
2504                              /*evpd*/TRUE,
2505                              /*page_code*/SVPD_BDC,
2506                              /*sense_len*/SSD_MIN_SIZE,
2507                              /*timeout*/da_default_timeout * 1000);
2508                 start_ccb->ccb_h.ccb_bp = NULL;
2509                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2510                 xpt_action(start_ccb);
2511                 break;
2512         }
2513         case DA_STATE_PROBE_ATA:
2514         {
2515                 struct ata_params *ata_params;
2516
2517                 if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2518                         daprobedone(periph, start_ccb);
2519                         break;
2520                 }
2521
2522                 ata_params = (struct ata_params*)
2523                         malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2524
2525                 if (ata_params == NULL) {
2526                         printf("dastart: Couldn't malloc ata_params data\n");
2527                         /* da_free_periph??? */
2528                         break;
2529                 }
2530
2531                 scsi_ata_identify(&start_ccb->csio,
2532                                   /*retries*/da_retry_count,
2533                                   /*cbfcnp*/dadone,
2534                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
2535                                   /*data_ptr*/(u_int8_t *)ata_params,
2536                                   /*dxfer_len*/sizeof(*ata_params),
2537                                   /*sense_len*/SSD_FULL_SIZE,
2538                                   /*timeout*/da_default_timeout * 1000);
2539                 start_ccb->ccb_h.ccb_bp = NULL;
2540                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2541                 xpt_action(start_ccb);
2542                 break;
2543         }
2544         }
2545 }
2546
2547 /*
2548  * In each of the methods below, while its the caller's
2549  * responsibility to ensure the request will fit into a
2550  * single device request, we might have changed the delete
2551  * method due to the device incorrectly advertising either
2552  * its supported methods or limits.
2553  *
2554  * To prevent this causing further issues we validate the
2555  * against the methods limits, and warn which would
2556  * otherwise be unnecessary.
2557  */
2558 static void
2559 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2560 {
2561         struct da_softc *softc = (struct da_softc *)periph->softc;;
2562         struct bio *bp1;
2563         uint8_t *buf = softc->unmap_buf;
2564         uint64_t lba, lastlba = (uint64_t)-1;
2565         uint64_t totalcount = 0;
2566         uint64_t count;
2567         uint32_t lastcount = 0, c;
2568         uint32_t off, ranges = 0;
2569
2570         /*
2571          * Currently this doesn't take the UNMAP
2572          * Granularity and Granularity Alignment
2573          * fields into account.
2574          *
2575          * This could result in both unoptimal unmap
2576          * requests as as well as UNMAP calls unmapping
2577          * fewer LBA's than requested.
2578          */
2579
2580         softc->delete_running = 1;
2581         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2582         bp1 = bp;
2583         do {
2584                 bioq_remove(&softc->delete_queue, bp1);
2585                 if (bp1 != bp)
2586                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2587                 lba = bp1->bio_pblkno;
2588                 count = bp1->bio_bcount / softc->params.secsize;
2589
2590                 /* Try to extend the previous range. */
2591                 if (lba == lastlba) {
2592                         c = omin(count, UNMAP_RANGE_MAX - lastcount);
2593                         lastcount += c;
2594                         off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2595                               UNMAP_HEAD_SIZE;
2596                         scsi_ulto4b(lastcount, &buf[off + 8]);
2597                         count -= c;
2598                         lba +=c;
2599                         totalcount += c;
2600                 }
2601
2602                 while (count > 0) {
2603                         c = omin(count, UNMAP_RANGE_MAX);
2604                         if (totalcount + c > softc->unmap_max_lba ||
2605                             ranges >= softc->unmap_max_ranges) {
2606                                 xpt_print(periph->path,
2607                                     "%s issuing short delete %ld > %ld"
2608                                     "|| %d >= %d",
2609                                     da_delete_method_desc[softc->delete_method],
2610                                     totalcount + c, softc->unmap_max_lba,
2611                                     ranges, softc->unmap_max_ranges);
2612                                 break;
2613                         }
2614                         off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2615                         scsi_u64to8b(lba, &buf[off + 0]);
2616                         scsi_ulto4b(c, &buf[off + 8]);
2617                         lba += c;
2618                         totalcount += c;
2619                         ranges++;
2620                         count -= c;
2621                         lastcount = c;
2622                 }
2623                 lastlba = lba;
2624                 bp1 = bioq_first(&softc->delete_queue);
2625                 if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2626                     totalcount + bp1->bio_bcount /
2627                     softc->params.secsize > softc->unmap_max_lba)
2628                         break;
2629         } while (1);
2630         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2631         scsi_ulto2b(ranges * 16, &buf[2]);
2632
2633         scsi_unmap(&ccb->csio,
2634                    /*retries*/da_retry_count,
2635                    /*cbfcnp*/dadone,
2636                    /*tag_action*/MSG_SIMPLE_Q_TAG,
2637                    /*byte2*/0,
2638                    /*data_ptr*/ buf,
2639                    /*dxfer_len*/ ranges * 16 + 8,
2640                    /*sense_len*/SSD_FULL_SIZE,
2641                    da_default_timeout * 1000);
2642         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2643         ccb->ccb_h.flags |= CAM_UNLOCKED;
2644 }
2645
2646 static void
2647 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2648 {
2649         struct da_softc *softc = (struct da_softc *)periph->softc;
2650         struct bio *bp1;
2651         uint8_t *buf = softc->unmap_buf;
2652         uint64_t lastlba = (uint64_t)-1;
2653         uint64_t count;
2654         uint64_t lba;
2655         uint32_t lastcount = 0, c, requestcount;
2656         int ranges = 0, off, block_count;
2657
2658         softc->delete_running = 1;
2659         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2660         bp1 = bp;
2661         do {
2662                 bioq_remove(&softc->delete_queue, bp1);
2663                 if (bp1 != bp)
2664                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2665                 lba = bp1->bio_pblkno;
2666                 count = bp1->bio_bcount / softc->params.secsize;
2667                 requestcount = count;
2668
2669                 /* Try to extend the previous range. */
2670                 if (lba == lastlba) {
2671                         c = min(count, ATA_DSM_RANGE_MAX - lastcount);
2672                         lastcount += c;
2673                         off = (ranges - 1) * 8;
2674                         buf[off + 6] = lastcount & 0xff;
2675                         buf[off + 7] = (lastcount >> 8) & 0xff;
2676                         count -= c;
2677                         lba += c;
2678                 }
2679
2680                 while (count > 0) {
2681                         c = min(count, ATA_DSM_RANGE_MAX);
2682                         off = ranges * 8;
2683
2684                         buf[off + 0] = lba & 0xff;
2685                         buf[off + 1] = (lba >> 8) & 0xff;
2686                         buf[off + 2] = (lba >> 16) & 0xff;
2687                         buf[off + 3] = (lba >> 24) & 0xff;
2688                         buf[off + 4] = (lba >> 32) & 0xff;
2689                         buf[off + 5] = (lba >> 40) & 0xff;
2690                         buf[off + 6] = c & 0xff;
2691                         buf[off + 7] = (c >> 8) & 0xff;
2692                         lba += c;
2693                         ranges++;
2694                         count -= c;
2695                         lastcount = c;
2696                         if (count != 0 && ranges == softc->trim_max_ranges) {
2697                                 xpt_print(periph->path,
2698                                     "%s issuing short delete %ld > %ld\n",
2699                                     da_delete_method_desc[softc->delete_method],
2700                                     requestcount,
2701                                     (softc->trim_max_ranges - ranges) *
2702                                     ATA_DSM_RANGE_MAX);
2703                                 break;
2704                         }
2705                 }
2706                 lastlba = lba;
2707                 bp1 = bioq_first(&softc->delete_queue);
2708                 if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2709                     (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2710                         break;
2711         } while (1);
2712
2713         block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2714         scsi_ata_trim(&ccb->csio,
2715                       /*retries*/da_retry_count,
2716                       /*cbfcnp*/dadone,
2717                       /*tag_action*/MSG_SIMPLE_Q_TAG,
2718                       block_count,
2719                       /*data_ptr*/buf,
2720                       /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2721                       /*sense_len*/SSD_FULL_SIZE,
2722                       da_default_timeout * 1000);
2723         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2724         ccb->ccb_h.flags |= CAM_UNLOCKED;
2725 }
2726
2727 /*
2728  * We calculate ws_max_blks here based off d_delmaxsize instead
2729  * of using softc->ws_max_blks as it is absolute max for the
2730  * device not the protocol max which may well be lower.
2731  */
2732 static void
2733 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2734 {
2735         struct da_softc *softc;
2736         struct bio *bp1;
2737         uint64_t ws_max_blks;
2738         uint64_t lba;
2739         uint64_t count; /* forward compat with WS32 */
2740
2741         softc = (struct da_softc *)periph->softc;
2742         ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2743         softc->delete_running = 1;
2744         lba = bp->bio_pblkno;
2745         count = 0;
2746         bp1 = bp;
2747         do {
2748                 bioq_remove(&softc->delete_queue, bp1);
2749                 if (bp1 != bp)
2750                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2751                 count += bp1->bio_bcount / softc->params.secsize;
2752                 if (count > ws_max_blks) {
2753                         xpt_print(periph->path,
2754                             "%s issuing short delete %ld > %ld\n",
2755                             da_delete_method_desc[softc->delete_method],
2756                             count, ws_max_blks);
2757                         count = min(count, ws_max_blks);
2758                         break;
2759                 }
2760                 bp1 = bioq_first(&softc->delete_queue);
2761                 if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2762                     count + bp1->bio_bcount /
2763                     softc->params.secsize > ws_max_blks)
2764                         break;
2765         } while (1);
2766
2767         scsi_write_same(&ccb->csio,
2768                         /*retries*/da_retry_count,
2769                         /*cbfcnp*/dadone,
2770                         /*tag_action*/MSG_SIMPLE_Q_TAG,
2771                         /*byte2*/softc->delete_method ==
2772                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2773                         softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2774                         /*lba*/lba,
2775                         /*block_count*/count,
2776                         /*data_ptr*/ __DECONST(void *, zero_region),
2777                         /*dxfer_len*/ softc->params.secsize,
2778                         /*sense_len*/SSD_FULL_SIZE,
2779                         da_default_timeout * 1000);
2780         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2781         ccb->ccb_h.flags |= CAM_UNLOCKED;
2782 }
2783
2784 static int
2785 cmd6workaround(union ccb *ccb)
2786 {
2787         struct scsi_rw_6 cmd6;
2788         struct scsi_rw_10 *cmd10;
2789         struct da_softc *softc;
2790         u_int8_t *cdb;
2791         struct bio *bp;
2792         int frozen;
2793
2794         cdb = ccb->csio.cdb_io.cdb_bytes;
2795         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2796
2797         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2798                 da_delete_methods old_method = softc->delete_method;
2799
2800                 /*
2801                  * Typically there are two reasons for failure here
2802                  * 1. Delete method was detected as supported but isn't
2803                  * 2. Delete failed due to invalid params e.g. too big
2804                  *
2805                  * While we will attempt to choose an alternative delete method
2806                  * this may result in short deletes if the existing delete
2807                  * requests from geom are big for the new method choosen.
2808                  *
2809                  * This method assumes that the error which triggered this
2810                  * will not retry the io otherwise a panic will occur
2811                  */
2812                 dadeleteflag(softc, old_method, 0);
2813                 dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2814                 if (softc->delete_method == DA_DELETE_DISABLE)
2815                         xpt_print(ccb->ccb_h.path,
2816                                   "%s failed, disabling BIO_DELETE\n",
2817                                   da_delete_method_desc[old_method]);
2818                 else
2819                         xpt_print(ccb->ccb_h.path,
2820                                   "%s failed, switching to %s BIO_DELETE\n",
2821                                   da_delete_method_desc[old_method],
2822                                   da_delete_method_desc[softc->delete_method]);
2823
2824                 while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2825                         bioq_disksort(&softc->delete_queue, bp);
2826                 bioq_disksort(&softc->delete_queue,
2827                     (struct bio *)ccb->ccb_h.ccb_bp);
2828                 ccb->ccb_h.ccb_bp = NULL;
2829                 return (0);
2830         }
2831
2832         /* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2833         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2834             (*cdb == PREVENT_ALLOW) &&
2835             (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2836                 if (bootverbose)
2837                         xpt_print(ccb->ccb_h.path,
2838                             "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2839                 softc->quirks |= DA_Q_NO_PREVENT;
2840                 return (0);
2841         }
2842
2843         /* Detect unsupported SYNCHRONIZE CACHE(10). */
2844         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2845             (*cdb == SYNCHRONIZE_CACHE) &&
2846             (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2847                 if (bootverbose)
2848                         xpt_print(ccb->ccb_h.path,
2849                             "SYNCHRONIZE CACHE(10) not supported.\n");
2850                 softc->quirks |= DA_Q_NO_SYNC_CACHE;
2851                 softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2852                 return (0);
2853         }
2854
2855         /* Translation only possible if CDB is an array and cmd is R/W6 */
2856         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2857             (*cdb != READ_6 && *cdb != WRITE_6))
2858                 return 0;
2859
2860         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2861             "increasing minimum_cmd_size to 10.\n");
2862         softc->minimum_cmd_size = 10;
2863
2864         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2865         cmd10 = (struct scsi_rw_10 *)cdb;
2866         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2867         cmd10->byte2 = 0;
2868         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2869         cmd10->reserved = 0;
2870         scsi_ulto2b(cmd6.length, cmd10->length);
2871         cmd10->control = cmd6.control;
2872         ccb->csio.cdb_len = sizeof(*cmd10);
2873
2874         /* Requeue request, unfreezing queue if necessary */
2875         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2876         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2877         xpt_action(ccb);
2878         if (frozen) {
2879                 cam_release_devq(ccb->ccb_h.path,
2880                                  /*relsim_flags*/0,
2881                                  /*reduction*/0,
2882                                  /*timeout*/0,
2883                                  /*getcount_only*/0);
2884         }
2885         return (ERESTART);
2886 }
2887
2888 static void
2889 dadone(struct cam_periph *periph, union ccb *done_ccb)
2890 {
2891         struct da_softc *softc;
2892         struct ccb_scsiio *csio;
2893         u_int32_t  priority;
2894         da_ccb_state state;
2895
2896         softc = (struct da_softc *)periph->softc;
2897         priority = done_ccb->ccb_h.pinfo.priority;
2898
2899         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2900
2901         csio = &done_ccb->csio;
2902         state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2903         switch (state) {
2904         case DA_CCB_BUFFER_IO:
2905         case DA_CCB_DELETE:
2906         {
2907                 struct bio *bp, *bp1;
2908
2909                 cam_periph_lock(periph);
2910                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2911                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2912                         int error;
2913                         int sf;
2914
2915                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2916                                 sf = SF_RETRY_UA;
2917                         else
2918                                 sf = 0;
2919
2920                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2921                         if (error == ERESTART) {
2922                                 /*
2923                                  * A retry was scheduled, so
2924                                  * just return.
2925                                  */
2926                                 cam_periph_unlock(periph);
2927                                 return;
2928                         }
2929                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2930                         if (error != 0) {
2931                                 int queued_error;
2932
2933                                 /*
2934                                  * return all queued I/O with EIO, so that
2935                                  * the client can retry these I/Os in the
2936                                  * proper order should it attempt to recover.
2937                                  */
2938                                 queued_error = EIO;
2939
2940                                 if (error == ENXIO
2941                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2942                                         /*
2943                                          * Catastrophic error.  Mark our pack as
2944                                          * invalid.
2945                                          */
2946                                         /*
2947                                          * XXX See if this is really a media
2948                                          * XXX change first?
2949                                          */
2950                                         xpt_print(periph->path,
2951                                             "Invalidating pack\n");
2952                                         softc->flags |= DA_FLAG_PACK_INVALID;
2953                                         queued_error = ENXIO;
2954                                 }
2955                                 bioq_flush(&softc->bio_queue, NULL,
2956                                            queued_error);
2957                                 if (bp != NULL) {
2958                                         bp->bio_error = error;
2959                                         bp->bio_resid = bp->bio_bcount;
2960                                         bp->bio_flags |= BIO_ERROR;
2961                                 }
2962                         } else if (bp != NULL) {
2963                                 if (state == DA_CCB_DELETE)
2964                                         bp->bio_resid = 0;
2965                                 else
2966                                         bp->bio_resid = csio->resid;
2967                                 bp->bio_error = 0;
2968                                 if (bp->bio_resid != 0)
2969                                         bp->bio_flags |= BIO_ERROR;
2970                         }
2971                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2972                                 cam_release_devq(done_ccb->ccb_h.path,
2973                                                  /*relsim_flags*/0,
2974                                                  /*reduction*/0,
2975                                                  /*timeout*/0,
2976                                                  /*getcount_only*/0);
2977                 } else if (bp != NULL) {
2978                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2979                                 panic("REQ_CMP with QFRZN");
2980                         if (state == DA_CCB_DELETE)
2981                                 bp->bio_resid = 0;
2982                         else
2983                                 bp->bio_resid = csio->resid;
2984                         if (csio->resid > 0)
2985                                 bp->bio_flags |= BIO_ERROR;
2986                         if (softc->error_inject != 0) {
2987                                 bp->bio_error = softc->error_inject;
2988                                 bp->bio_resid = bp->bio_bcount;
2989                                 bp->bio_flags |= BIO_ERROR;
2990                                 softc->error_inject = 0;
2991                         }
2992                 }
2993
2994                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
2995                 if (LIST_EMPTY(&softc->pending_ccbs))
2996                         softc->flags |= DA_FLAG_WAS_OTAG;
2997
2998                 xpt_release_ccb(done_ccb);
2999                 if (state == DA_CCB_DELETE) {
3000                         TAILQ_HEAD(, bio) queue;
3001
3002                         TAILQ_INIT(&queue);
3003                         TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3004                         softc->delete_run_queue.insert_point = NULL;
3005                         softc->delete_running = 0;
3006                         daschedule(periph);
3007                         cam_periph_unlock(periph);
3008                         while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3009                                 TAILQ_REMOVE(&queue, bp1, bio_queue);
3010                                 bp1->bio_error = bp->bio_error;
3011                                 if (bp->bio_flags & BIO_ERROR) {
3012                                         bp1->bio_flags |= BIO_ERROR;
3013                                         bp1->bio_resid = bp1->bio_bcount;
3014                                 } else
3015                                         bp1->bio_resid = 0;
3016                                 biodone(bp1);
3017                         }
3018                 } else
3019                         cam_periph_unlock(periph);
3020                 if (bp != NULL)
3021                         biodone(bp);
3022                 return;
3023         }
3024         case DA_CCB_PROBE_RC:
3025         case DA_CCB_PROBE_RC16:
3026         {
3027                 struct     scsi_read_capacity_data *rdcap;
3028                 struct     scsi_read_capacity_data_long *rcaplong;
3029                 char       announce_buf[80];
3030                 int        lbp;
3031
3032                 lbp = 0;
3033                 rdcap = NULL;
3034                 rcaplong = NULL;
3035                 if (state == DA_CCB_PROBE_RC)
3036                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3037                 else
3038                         rcaplong = (struct scsi_read_capacity_data_long *)
3039                                 csio->data_ptr;
3040
3041                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3042                         struct disk_params *dp;
3043                         uint32_t block_size;
3044                         uint64_t maxsector;
3045                         u_int lalba;    /* Lowest aligned LBA. */
3046
3047                         if (state == DA_CCB_PROBE_RC) {
3048                                 block_size = scsi_4btoul(rdcap->length);
3049                                 maxsector = scsi_4btoul(rdcap->addr);
3050                                 lalba = 0;
3051
3052                                 /*
3053                                  * According to SBC-2, if the standard 10
3054                                  * byte READ CAPACITY command returns 2^32,
3055                                  * we should issue the 16 byte version of
3056                                  * the command, since the device in question
3057                                  * has more sectors than can be represented
3058                                  * with the short version of the command.
3059                                  */
3060                                 if (maxsector == 0xffffffff) {
3061                                         free(rdcap, M_SCSIDA);
3062                                         xpt_release_ccb(done_ccb);
3063                                         softc->state = DA_STATE_PROBE_RC16;
3064                                         xpt_schedule(periph, priority);
3065                                         return;
3066                                 }
3067                         } else {
3068                                 block_size = scsi_4btoul(rcaplong->length);
3069                                 maxsector = scsi_8btou64(rcaplong->addr);
3070                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3071                         }
3072
3073                         /*
3074                          * Because GEOM code just will panic us if we
3075                          * give them an 'illegal' value we'll avoid that
3076                          * here.
3077                          */
3078                         if (block_size == 0 && maxsector == 0) {
3079                                 block_size = 512;
3080                                 maxsector = -1;
3081                         }
3082                         if (block_size >= MAXPHYS || block_size == 0) {
3083                                 xpt_print(periph->path,
3084                                     "unsupportable block size %ju\n",
3085                                     (uintmax_t) block_size);
3086                                 announce_buf[0] = '\0';
3087                                 cam_periph_invalidate(periph);
3088                         } else {
3089                                 /*
3090                                  * We pass rcaplong into dasetgeom(),
3091                                  * because it will only use it if it is
3092                                  * non-NULL.
3093                                  */
3094                                 dasetgeom(periph, block_size, maxsector,
3095                                           rcaplong, sizeof(*rcaplong));
3096                                 lbp = (lalba & SRC16_LBPME_A);
3097                                 dp = &softc->params;
3098                                 snprintf(announce_buf, sizeof(announce_buf),
3099                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
3100                                         "%dC)", (uintmax_t)
3101                                         (((uintmax_t)dp->secsize *
3102                                         dp->sectors) / (1024*1024)),
3103                                         (uintmax_t)dp->sectors,
3104                                         dp->secsize, dp->heads,
3105                                         dp->secs_per_track, dp->cylinders);
3106                         }
3107                 } else {
3108                         int     error;
3109
3110                         announce_buf[0] = '\0';
3111
3112                         /*
3113                          * Retry any UNIT ATTENTION type errors.  They
3114                          * are expected at boot.
3115                          */
3116                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3117                                         SF_RETRY_UA|SF_NO_PRINT);
3118                         if (error == ERESTART) {
3119                                 /*
3120                                  * A retry was scheuled, so
3121                                  * just return.
3122                                  */
3123                                 return;
3124                         } else if (error != 0) {
3125                                 int asc, ascq;
3126                                 int sense_key, error_code;
3127                                 int have_sense;
3128                                 cam_status status;
3129                                 struct ccb_getdev cgd;
3130
3131                                 /* Don't wedge this device's queue */
3132                                 status = done_ccb->ccb_h.status;
3133                                 if ((status & CAM_DEV_QFRZN) != 0)
3134                                         cam_release_devq(done_ccb->ccb_h.path,
3135                                                          /*relsim_flags*/0,
3136                                                          /*reduction*/0,
3137                                                          /*timeout*/0,
3138                                                          /*getcount_only*/0);
3139
3140
3141                                 xpt_setup_ccb(&cgd.ccb_h,
3142                                               done_ccb->ccb_h.path,
3143                                               CAM_PRIORITY_NORMAL);
3144                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3145                                 xpt_action((union ccb *)&cgd);
3146
3147                                 if (scsi_extract_sense_ccb(done_ccb,
3148                                     &error_code, &sense_key, &asc, &ascq))
3149                                         have_sense = TRUE;
3150                                 else
3151                                         have_sense = FALSE;
3152
3153                                 /*
3154                                  * If we tried READ CAPACITY(16) and failed,
3155                                  * fallback to READ CAPACITY(10).
3156                                  */
3157                                 if ((state == DA_CCB_PROBE_RC16) &&
3158                                     (softc->flags & DA_FLAG_CAN_RC16) &&
3159                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3160                                         CAM_REQ_INVALID) ||
3161                                      ((have_sense) &&
3162                                       (error_code == SSD_CURRENT_ERROR) &&
3163                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3164                                         softc->flags &= ~DA_FLAG_CAN_RC16;
3165                                         free(rdcap, M_SCSIDA);
3166                                         xpt_release_ccb(done_ccb);
3167                                         softc->state = DA_STATE_PROBE_RC;
3168                                         xpt_schedule(periph, priority);
3169                                         return;
3170                                 } else
3171                                 /*
3172                                  * Attach to anything that claims to be a
3173                                  * direct access or optical disk device,
3174                                  * as long as it doesn't return a "Logical
3175                                  * unit not supported" (0x25) error.
3176                                  */
3177                                 if ((have_sense) && (asc != 0x25)
3178                                  && (error_code == SSD_CURRENT_ERROR)) {
3179                                         const char *sense_key_desc;
3180                                         const char *asc_desc;
3181
3182                                         dasetgeom(periph, 512, -1, NULL, 0);
3183                                         scsi_sense_desc(sense_key, asc, ascq,
3184                                                         &cgd.inq_data,
3185                                                         &sense_key_desc,
3186                                                         &asc_desc);
3187                                         snprintf(announce_buf,
3188                                             sizeof(announce_buf),
3189                                                 "Attempt to query device "
3190                                                 "size failed: %s, %s",
3191                                                 sense_key_desc,
3192                                                 asc_desc);
3193                                 } else {
3194                                         if (have_sense)
3195                                                 scsi_sense_print(
3196                                                         &done_ccb->csio);
3197                                         else {
3198                                                 xpt_print(periph->path,
3199                                                     "got CAM status %#x\n",
3200                                                     done_ccb->ccb_h.status);
3201                                         }
3202
3203                                         xpt_print(periph->path, "fatal error, "
3204                                             "failed to attach to device\n");
3205
3206                                         /*
3207                                          * Free up resources.
3208                                          */
3209                                         cam_periph_invalidate(periph);
3210                                 }
3211                         }
3212                 }
3213                 free(csio->data_ptr, M_SCSIDA);
3214                 if (announce_buf[0] != '\0' &&
3215                     ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3216                         /*
3217                          * Create our sysctl variables, now that we know
3218                          * we have successfully attached.
3219                          */
3220                         /* increase the refcount */
3221                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3222                                 taskqueue_enqueue(taskqueue_thread,
3223                                                   &softc->sysctl_task);
3224                                 xpt_announce_periph(periph, announce_buf);
3225                                 xpt_announce_quirks(periph, softc->quirks,
3226                                     DA_Q_BIT_STRING);
3227                         } else {
3228                                 xpt_print(periph->path, "fatal error, "
3229                                     "could not acquire reference count\n");
3230                         }
3231                 }
3232
3233                 /* We already probed the device. */
3234                 if (softc->flags & DA_FLAG_PROBED) {
3235                         daprobedone(periph, done_ccb);
3236                         return;
3237                 }
3238
3239                 /* Ensure re-probe doesn't see old delete. */
3240                 softc->delete_available = 0;
3241                 if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3242                         /*
3243                          * Based on older SBC-3 spec revisions
3244                          * any of the UNMAP methods "may" be
3245                          * available via LBP given this flag so
3246                          * we flag all of them as availble and
3247                          * then remove those which further
3248                          * probes confirm aren't available
3249                          * later.
3250                          *
3251                          * We could also check readcap(16) p_type
3252                          * flag to exclude one or more invalid
3253                          * write same (X) types here
3254                          */
3255                         dadeleteflag(softc, DA_DELETE_WS16, 1);
3256                         dadeleteflag(softc, DA_DELETE_WS10, 1);
3257                         dadeleteflag(softc, DA_DELETE_ZERO, 1);
3258                         dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3259
3260                         xpt_release_ccb(done_ccb);
3261                         softc->state = DA_STATE_PROBE_LBP;
3262                         xpt_schedule(periph, priority);
3263                         return;
3264                 }
3265
3266                 xpt_release_ccb(done_ccb);
3267                 softc->state = DA_STATE_PROBE_BDC;
3268                 xpt_schedule(periph, priority);
3269                 return;
3270         }
3271         case DA_CCB_PROBE_LBP:
3272         {
3273                 struct scsi_vpd_logical_block_prov *lbp;
3274
3275                 lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3276
3277                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3278                         /*
3279                          * T10/1799-D Revision 31 states at least one of these
3280                          * must be supported but we don't currently enforce this.
3281                          */
3282                         dadeleteflag(softc, DA_DELETE_WS16,
3283                                      (lbp->flags & SVPD_LBP_WS16));
3284                         dadeleteflag(softc, DA_DELETE_WS10,
3285                                      (lbp->flags & SVPD_LBP_WS10));
3286                         dadeleteflag(softc, DA_DELETE_ZERO,
3287                                      (lbp->flags & SVPD_LBP_WS10));
3288                         dadeleteflag(softc, DA_DELETE_UNMAP,
3289                                      (lbp->flags & SVPD_LBP_UNMAP));
3290                 } else {
3291                         int error;
3292                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3293                                         SF_RETRY_UA|SF_NO_PRINT);
3294                         if (error == ERESTART)
3295                                 return;
3296                         else if (error != 0) {
3297                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3298                                         /* Don't wedge this device's queue */
3299                                         cam_release_devq(done_ccb->ccb_h.path,
3300                                                          /*relsim_flags*/0,
3301                                                          /*reduction*/0,
3302                                                          /*timeout*/0,
3303                                                          /*getcount_only*/0);
3304                                 }
3305
3306                                 /*
3307                                  * Failure indicates we don't support any SBC-3
3308                                  * delete methods with UNMAP
3309                                  */
3310                         }
3311                 }
3312
3313                 free(lbp, M_SCSIDA);
3314                 xpt_release_ccb(done_ccb);
3315                 softc->state = DA_STATE_PROBE_BLK_LIMITS;
3316                 xpt_schedule(periph, priority);
3317                 return;
3318         }
3319         case DA_CCB_PROBE_BLK_LIMITS:
3320         {
3321                 struct scsi_vpd_block_limits *block_limits;
3322
3323                 block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3324
3325                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3326                         uint32_t max_txfer_len = scsi_4btoul(
3327                                 block_limits->max_txfer_len);
3328                         uint32_t max_unmap_lba_cnt = scsi_4btoul(
3329                                 block_limits->max_unmap_lba_cnt);
3330                         uint32_t max_unmap_blk_cnt = scsi_4btoul(
3331                                 block_limits->max_unmap_blk_cnt);
3332                         uint64_t ws_max_blks = scsi_8btou64(
3333                                 block_limits->max_write_same_length);
3334
3335                         if (max_txfer_len != 0) {
3336                                 softc->disk->d_maxsize = MIN(softc->maxio,
3337                                     (off_t)max_txfer_len * softc->params.secsize);
3338                         }
3339
3340                         /*
3341                          * We should already support UNMAP but we check lba
3342                          * and block count to be sure
3343                          */
3344                         if (max_unmap_lba_cnt != 0x00L &&
3345                             max_unmap_blk_cnt != 0x00L) {
3346                                 softc->unmap_max_lba = max_unmap_lba_cnt;
3347                                 softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3348                                         UNMAP_MAX_RANGES);
3349                         } else {
3350                                 /*
3351                                  * Unexpected UNMAP limits which means the
3352                                  * device doesn't actually support UNMAP
3353                                  */
3354                                 dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3355                         }
3356
3357                         if (ws_max_blks != 0x00L)
3358                                 softc->ws_max_blks = ws_max_blks;
3359                 } else {
3360                         int error;
3361                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3362                                         SF_RETRY_UA|SF_NO_PRINT);
3363                         if (error == ERESTART)
3364                                 return;
3365                         else if (error != 0) {
3366                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3367                                         /* Don't wedge this device's queue */
3368                                         cam_release_devq(done_ccb->ccb_h.path,
3369                                                          /*relsim_flags*/0,
3370                                                          /*reduction*/0,
3371                                                          /*timeout*/0,
3372                                                          /*getcount_only*/0);
3373                                 }
3374
3375                                 /*
3376                                  * Failure here doesn't mean UNMAP is not
3377                                  * supported as this is an optional page.
3378                                  */
3379                                 softc->unmap_max_lba = 1;
3380                                 softc->unmap_max_ranges = 1;
3381                         }
3382                 }
3383
3384                 free(block_limits, M_SCSIDA);
3385                 xpt_release_ccb(done_ccb);
3386                 softc->state = DA_STATE_PROBE_BDC;
3387                 xpt_schedule(periph, priority);
3388                 return;
3389         }
3390         case DA_CCB_PROBE_BDC:
3391         {
3392                 struct scsi_vpd_block_characteristics *bdc;
3393
3394                 bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3395
3396                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3397                         /*
3398                          * Disable queue sorting for non-rotational media
3399                          * by default.
3400                          */
3401                         u_int16_t old_rate = softc->disk->d_rotation_rate;
3402
3403                         softc->disk->d_rotation_rate =
3404                                 scsi_2btoul(bdc->medium_rotation_rate);
3405                         if (softc->disk->d_rotation_rate ==
3406                             SVPD_BDC_RATE_NON_ROTATING) {
3407                                 softc->sort_io_queue = 0;
3408                         }
3409                         if (softc->disk->d_rotation_rate != old_rate) {
3410                                 disk_attr_changed(softc->disk,
3411                                     "GEOM::rotation_rate", M_NOWAIT);
3412                         }
3413                 } else {
3414                         int error;
3415                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3416                                         SF_RETRY_UA|SF_NO_PRINT);
3417                         if (error == ERESTART)
3418                                 return;
3419                         else if (error != 0) {
3420                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3421                                         /* Don't wedge this device's queue */
3422                                         cam_release_devq(done_ccb->ccb_h.path,
3423                                                          /*relsim_flags*/0,
3424                                                          /*reduction*/0,
3425                                                          /*timeout*/0,
3426                                                          /*getcount_only*/0);
3427                                 }
3428                         }
3429                 }
3430
3431                 free(bdc, M_SCSIDA);
3432                 xpt_release_ccb(done_ccb);
3433                 softc->state = DA_STATE_PROBE_ATA;
3434                 xpt_schedule(periph, priority);
3435                 return;
3436         }
3437         case DA_CCB_PROBE_ATA:
3438         {
3439                 int i;
3440                 struct ata_params *ata_params;
3441                 int16_t *ptr;
3442
3443                 ata_params = (struct ata_params *)csio->data_ptr;
3444                 ptr = (uint16_t *)ata_params;
3445
3446                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3447                         uint16_t old_rate;
3448
3449                         for (i = 0; i < sizeof(*ata_params) / 2; i++)
3450                                 ptr[i] = le16toh(ptr[i]);
3451                         if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3452                             (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3453                                 dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3454                                 if (ata_params->max_dsm_blocks != 0)
3455                                         softc->trim_max_ranges = min(
3456                                           softc->trim_max_ranges,
3457                                           ata_params->max_dsm_blocks *
3458                                           ATA_DSM_BLK_RANGES);
3459                         }
3460                         /*
3461                          * Disable queue sorting for non-rotational media
3462                          * by default.
3463                          */
3464                         old_rate = softc->disk->d_rotation_rate;
3465                         softc->disk->d_rotation_rate =
3466                             ata_params->media_rotation_rate;
3467                         if (softc->disk->d_rotation_rate ==
3468                             ATA_RATE_NON_ROTATING) {
3469                                 softc->sort_io_queue = 0;
3470                         }
3471
3472                         if (softc->disk->d_rotation_rate != old_rate) {
3473                                 disk_attr_changed(softc->disk,
3474                                     "GEOM::rotation_rate", M_NOWAIT);
3475                         }
3476                 } else {
3477                         int error;
3478                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3479                                         SF_RETRY_UA|SF_NO_PRINT);
3480                         if (error == ERESTART)
3481                                 return;
3482                         else if (error != 0) {
3483                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3484                                         /* Don't wedge this device's queue */
3485                                         cam_release_devq(done_ccb->ccb_h.path,
3486                                                          /*relsim_flags*/0,
3487                                                          /*reduction*/0,
3488                                                          /*timeout*/0,
3489                                                          /*getcount_only*/0);
3490                                 }
3491                         }
3492                 }
3493
3494                 free(ata_params, M_SCSIDA);
3495                 daprobedone(periph, done_ccb);
3496                 return;
3497         }
3498         case DA_CCB_DUMP:
3499                 /* No-op.  We're polling */
3500                 return;
3501         case DA_CCB_TUR:
3502         {
3503                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3504
3505                         if (daerror(done_ccb, CAM_RETRY_SELTO,
3506                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3507                             ERESTART)
3508                                 return;
3509                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3510                                 cam_release_devq(done_ccb->ccb_h.path,
3511                                                  /*relsim_flags*/0,
3512                                                  /*reduction*/0,
3513                                                  /*timeout*/0,
3514                                                  /*getcount_only*/0);
3515                 }
3516                 xpt_release_ccb(done_ccb);
3517                 cam_periph_release_locked(periph);
3518                 return;
3519         }
3520         default:
3521                 break;
3522         }
3523         xpt_release_ccb(done_ccb);
3524 }
3525
3526 static void
3527 dareprobe(struct cam_periph *periph)
3528 {
3529         struct da_softc   *softc;
3530         cam_status status;
3531
3532         softc = (struct da_softc *)periph->softc;
3533
3534         /* Probe in progress; don't interfere. */
3535         if (softc->state != DA_STATE_NORMAL)
3536                 return;
3537
3538         status = cam_periph_acquire(periph);
3539         KASSERT(status == CAM_REQ_CMP,
3540             ("dareprobe: cam_periph_acquire failed"));
3541
3542         if (softc->flags & DA_FLAG_CAN_RC16)
3543                 softc->state = DA_STATE_PROBE_RC16;
3544         else
3545                 softc->state = DA_STATE_PROBE_RC;
3546
3547         xpt_schedule(periph, CAM_PRIORITY_DEV);
3548 }
3549
3550 static int
3551 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3552 {
3553         struct da_softc   *softc;
3554         struct cam_periph *periph;
3555         int error, error_code, sense_key, asc, ascq;
3556
3557         periph = xpt_path_periph(ccb->ccb_h.path);
3558         softc = (struct da_softc *)periph->softc;
3559
3560         /*
3561          * Automatically detect devices that do not support
3562          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3563          */
3564         error = 0;
3565         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3566                 error = cmd6workaround(ccb);
3567         } else if (scsi_extract_sense_ccb(ccb,
3568             &error_code, &sense_key, &asc, &ascq)) {
3569                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3570                         error = cmd6workaround(ccb);
3571                 /*
3572                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
3573                  * query the capacity and notify upper layers.
3574                  */
3575                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3576                     asc == 0x2A && ascq == 0x09) {
3577                         xpt_print(periph->path, "Capacity data has changed\n");
3578                         softc->flags &= ~DA_FLAG_PROBED;
3579                         dareprobe(periph);
3580                         sense_flags |= SF_NO_PRINT;
3581                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3582                     asc == 0x28 && ascq == 0x00) {
3583                         softc->flags &= ~DA_FLAG_PROBED;
3584                         disk_media_changed(softc->disk, M_NOWAIT);
3585                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3586                     asc == 0x3F && ascq == 0x03) {
3587                         xpt_print(periph->path, "INQUIRY data has changed\n");
3588                         softc->flags &= ~DA_FLAG_PROBED;
3589                         dareprobe(periph);
3590                         sense_flags |= SF_NO_PRINT;
3591                 } else if (sense_key == SSD_KEY_NOT_READY &&
3592                     asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3593                         softc->flags |= DA_FLAG_PACK_INVALID;
3594                         disk_media_gone(softc->disk, M_NOWAIT);
3595                 }
3596         }
3597         if (error == ERESTART)
3598                 return (ERESTART);
3599
3600         /*
3601          * XXX
3602          * Until we have a better way of doing pack validation,
3603          * don't treat UAs as errors.
3604          */
3605         sense_flags |= SF_RETRY_UA;
3606         return(cam_periph_error(ccb, cam_flags, sense_flags,
3607                                 &softc->saved_ccb));
3608 }
3609
3610 static void
3611 damediapoll(void *arg)
3612 {
3613         struct cam_periph *periph = arg;
3614         struct da_softc *softc = periph->softc;
3615
3616         if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3617                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3618                         softc->tur = 1;
3619                         daschedule(periph);
3620                 }
3621         }
3622         /* Queue us up again */
3623         if (da_poll_period != 0)
3624                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3625 }
3626
3627 static void
3628 daprevent(struct cam_periph *periph, int action)
3629 {
3630         struct  da_softc *softc;
3631         union   ccb *ccb;
3632         int     error;
3633
3634         softc = (struct da_softc *)periph->softc;
3635
3636         if (((action == PR_ALLOW)
3637           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3638          || ((action == PR_PREVENT)
3639           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3640                 return;
3641         }
3642
3643         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3644
3645         scsi_prevent(&ccb->csio,
3646                      /*retries*/1,
3647                      /*cbcfp*/dadone,
3648                      MSG_SIMPLE_Q_TAG,
3649                      action,
3650                      SSD_FULL_SIZE,
3651                      5000);
3652
3653         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3654             SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3655
3656         if (error == 0) {
3657                 if (action == PR_ALLOW)
3658                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
3659                 else
3660                         softc->flags |= DA_FLAG_PACK_LOCKED;
3661         }
3662
3663         xpt_release_ccb(ccb);
3664 }
3665
3666 static void
3667 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3668           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3669 {
3670         struct ccb_calc_geometry ccg;
3671         struct da_softc *softc;
3672         struct disk_params *dp;
3673         u_int lbppbe, lalba;
3674         int error;
3675
3676         softc = (struct da_softc *)periph->softc;
3677
3678         dp = &softc->params;
3679         dp->secsize = block_len;
3680         dp->sectors = maxsector + 1;
3681         if (rcaplong != NULL) {
3682                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3683                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3684                 lalba &= SRC16_LALBA_A;
3685         } else {
3686                 lbppbe = 0;
3687                 lalba = 0;
3688         }
3689
3690         if (lbppbe > 0) {
3691                 dp->stripesize = block_len << lbppbe;
3692                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3693                     dp->stripesize;
3694         } else if (softc->quirks & DA_Q_4K) {
3695                 dp->stripesize = 4096;
3696                 dp->stripeoffset = 0;
3697         } else {
3698                 dp->stripesize = 0;
3699                 dp->stripeoffset = 0;
3700         }
3701         /*
3702          * Have the controller provide us with a geometry
3703          * for this disk.  The only time the geometry
3704          * matters is when we boot and the controller
3705          * is the only one knowledgeable enough to come
3706          * up with something that will make this a bootable
3707          * device.
3708          */
3709         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3710         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3711         ccg.block_size = dp->secsize;
3712         ccg.volume_size = dp->sectors;
3713         ccg.heads = 0;
3714         ccg.secs_per_track = 0;
3715         ccg.cylinders = 0;
3716         xpt_action((union ccb*)&ccg);
3717         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3718                 /*
3719                  * We don't know what went wrong here- but just pick
3720                  * a geometry so we don't have nasty things like divide
3721                  * by zero.
3722                  */
3723                 dp->heads = 255;
3724                 dp->secs_per_track = 255;
3725                 dp->cylinders = dp->sectors / (255 * 255);
3726                 if (dp->cylinders == 0) {
3727                         dp->cylinders = 1;
3728                 }
3729         } else {
3730                 dp->heads = ccg.heads;
3731                 dp->secs_per_track = ccg.secs_per_track;
3732                 dp->cylinders = ccg.cylinders;
3733         }
3734
3735         /*
3736          * If the user supplied a read capacity buffer, and if it is
3737          * different than the previous buffer, update the data in the EDT.
3738          * If it's the same, we don't bother.  This avoids sending an
3739          * update every time someone opens this device.
3740          */
3741         if ((rcaplong != NULL)
3742          && (bcmp(rcaplong, &softc->rcaplong,
3743                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3744                 struct ccb_dev_advinfo cdai;
3745
3746                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3747                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3748                 cdai.buftype = CDAI_TYPE_RCAPLONG;
3749                 cdai.flags |= CDAI_FLAG_STORE;
3750                 cdai.bufsiz = rcap_len;
3751                 cdai.buf = (uint8_t *)rcaplong;
3752                 xpt_action((union ccb *)&cdai);
3753                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3754                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3755                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
3756                         xpt_print(periph->path, "%s: failed to set read "
3757                                   "capacity advinfo\n", __func__);
3758                         /* Use cam_error_print() to decode the status */
3759                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3760                                         CAM_EPF_ALL);
3761                 } else {
3762                         bcopy(rcaplong, &softc->rcaplong,
3763                               min(sizeof(softc->rcaplong), rcap_len));
3764                 }
3765         }
3766
3767         softc->disk->d_sectorsize = softc->params.secsize;
3768         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3769         softc->disk->d_stripesize = softc->params.stripesize;
3770         softc->disk->d_stripeoffset = softc->params.stripeoffset;
3771         /* XXX: these are not actually "firmware" values, so they may be wrong */
3772         softc->disk->d_fwsectors = softc->params.secs_per_track;
3773         softc->disk->d_fwheads = softc->params.heads;
3774         softc->disk->d_devstat->block_size = softc->params.secsize;
3775         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3776
3777         error = disk_resize(softc->disk, M_NOWAIT);
3778         if (error != 0)
3779                 xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3780 }
3781
3782 static void
3783 dasendorderedtag(void *arg)
3784 {
3785         struct da_softc *softc = arg;
3786
3787         if (da_send_ordered) {
3788                 if (!LIST_EMPTY(&softc->pending_ccbs)) {
3789                         if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3790                                 softc->flags |= DA_FLAG_NEED_OTAG;
3791                         softc->flags &= ~DA_FLAG_WAS_OTAG;
3792                 }
3793         }
3794         /* Queue us up again */
3795         callout_reset(&softc->sendordered_c,
3796             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3797             dasendorderedtag, softc);
3798 }
3799
3800 /*
3801  * Step through all DA peripheral drivers, and if the device is still open,
3802  * sync the disk cache to physical media.
3803  */
3804 static void
3805 dashutdown(void * arg, int howto)
3806 {
3807         struct cam_periph *periph;
3808         struct da_softc *softc;
3809         union ccb *ccb;
3810         int error;
3811
3812         CAM_PERIPH_FOREACH(periph, &dadriver) {
3813                 softc = (struct da_softc *)periph->softc;
3814                 if (SCHEDULER_STOPPED()) {
3815                         /* If we paniced with the lock held, do not recurse. */
3816                         if (!cam_periph_owned(periph) &&
3817                             (softc->flags & DA_FLAG_OPEN)) {
3818                                 dadump(softc->disk, NULL, 0, 0, 0);
3819                         }
3820                         continue;
3821                 }
3822                 cam_periph_lock(periph);
3823
3824                 /*
3825                  * We only sync the cache if the drive is still open, and
3826                  * if the drive is capable of it..
3827                  */
3828                 if (((softc->flags & DA_FLAG_OPEN) == 0)
3829                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3830                         cam_periph_unlock(periph);
3831                         continue;
3832                 }
3833
3834                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3835                 scsi_synchronize_cache(&ccb->csio,
3836                                        /*retries*/0,
3837                                        /*cbfcnp*/dadone,
3838                                        MSG_SIMPLE_Q_TAG,
3839                                        /*begin_lba*/0, /* whole disk */
3840                                        /*lb_count*/0,
3841                                        SSD_FULL_SIZE,
3842                                        60 * 60 * 1000);
3843
3844                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3845                     /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3846                     softc->disk->d_devstat);
3847                 if (error != 0)
3848                         xpt_print(periph->path, "Synchronize cache failed\n");
3849                 xpt_release_ccb(ccb);
3850                 cam_periph_unlock(periph);
3851         }
3852 }
3853
3854 #else /* !_KERNEL */
3855
3856 /*
3857  * XXX This is only left out of the kernel build to silence warnings.  If,
3858  * for some reason this function is used in the kernel, the ifdefs should
3859  * be moved so it is included both in the kernel and userland.
3860  */
3861 void
3862 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
3863                  void (*cbfcnp)(struct cam_periph *, union ccb *),
3864                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
3865                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3866                  u_int32_t timeout)
3867 {
3868         struct scsi_format_unit *scsi_cmd;
3869
3870         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
3871         scsi_cmd->opcode = FORMAT_UNIT;
3872         scsi_cmd->byte2 = byte2;
3873         scsi_ulto2b(ileave, scsi_cmd->interleave);
3874
3875         cam_fill_csio(csio,
3876                       retries,
3877                       cbfcnp,
3878                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3879                       tag_action,
3880                       data_ptr,
3881                       dxfer_len,
3882                       sense_len,
3883                       sizeof(*scsi_cmd),
3884                       timeout);
3885 }
3886
3887 void
3888 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
3889               void (*cbfcnp)(struct cam_periph *, union ccb *),
3890               u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
3891               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3892               u_int32_t timeout)
3893 {
3894         struct scsi_sanitize *scsi_cmd;
3895
3896         scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
3897         scsi_cmd->opcode = SANITIZE;
3898         scsi_cmd->byte2 = byte2;
3899         scsi_cmd->control = control;
3900         scsi_ulto2b(dxfer_len, scsi_cmd->length);
3901
3902         cam_fill_csio(csio,
3903                       retries,
3904                       cbfcnp,
3905                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3906                       tag_action,
3907                       data_ptr,
3908                       dxfer_len,
3909                       sense_len,
3910                       sizeof(*scsi_cmd),
3911                       timeout);
3912 }
3913
3914 #endif /* _KERNEL */