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