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_SAW_MEDIA       = 0x010,
  87         DA_FLAG_NEED_OTAG       = 0x020,
  88         DA_FLAG_WENT_IDLE       = 0x040,
  89         DA_FLAG_RETRY_UA        = 0x080,
  90         DA_FLAG_OPEN            = 0x100,
  91         DA_FLAG_SCTX_INIT       = 0x200,
  92         DA_FLAG_CAN_RC16        = 0x400,
  93         DA_FLAG_PROBED          = 0x800
  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_quirks;
 103
 104 #define DA_Q_BIT_STRING         \
 105         "\020"                  \
 106         "\001NO_SYNC_CACHE"     \
 107         "\002NO_6_BYTE"         \
 108         "\003NO_PREVENT"        \
 109         "\0044K"
 110
 111 typedef enum {
 112         DA_CCB_PROBE_RC         = 0x01,
 113         DA_CCB_PROBE_RC16       = 0x02,
 114         DA_CCB_PROBE_LBP        = 0x03,
 115         DA_CCB_PROBE_BLK_LIMITS = 0x04,
 116         DA_CCB_PROBE_BDC        = 0x05,
 117         DA_CCB_PROBE_ATA        = 0x06,
 118         DA_CCB_BUFFER_IO        = 0x07,
 119         DA_CCB_WAITING          = 0x08,
 120         DA_CCB_DUMP             = 0x0A,
 121         DA_CCB_DELETE           = 0x0B,
 122         DA_CCB_TUR              = 0x0C,
 123         DA_CCB_TYPE_MASK        = 0x0F,
 124         DA_CCB_RETRY_UA         = 0x10
 125 } da_ccb_state;
 126
 127 /*
 128  * Order here is important for method choice
 129  *
 130  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
 131  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
 132  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
 133  * import taking 5mins.
 134  *
 135  */
 136 typedef enum {
 137         DA_DELETE_NONE,
 138         DA_DELETE_DISABLE,
 139         DA_DELETE_ATA_TRIM,
 140         DA_DELETE_UNMAP,
 141         DA_DELETE_WS16,
 142         DA_DELETE_WS10,
 143         DA_DELETE_ZERO,
 144         DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
 145         DA_DELETE_MAX = DA_DELETE_ZERO
 146 } da_delete_methods;
 147
 148 static const char *da_delete_method_names[] =
 149     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
 150 static const char *da_delete_method_desc[] =
 151     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
 152       "WRITE SAME(10) with UNMAP", "ZERO" };
 153
 154 /* Offsets into our private area for storing information */
 155 #define ccb_state       ppriv_field0
 156 #define ccb_bp          ppriv_ptr1
 157
 158 struct disk_params {
 159         u_int8_t  heads;
 160         u_int32_t cylinders;
 161         u_int8_t  secs_per_track;
 162         u_int32_t secsize;      /* Number of bytes/sector */
 163         u_int64_t sectors;      /* total number sectors */
 164         u_int     stripesize;
 165         u_int     stripeoffset;
 166 };
 167
 168 #define UNMAP_RANGE_MAX         0xffffffff
 169 #define UNMAP_HEAD_SIZE         8
 170 #define UNMAP_RANGE_SIZE        16
 171 #define UNMAP_MAX_RANGES        2048 /* Protocol Max is 4095 */
 172 #define UNMAP_BUF_SIZE          ((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
 173                                 UNMAP_HEAD_SIZE)
 174
 175 #define WS10_MAX_BLKS           0xffff
 176 #define WS16_MAX_BLKS           0xffffffff
 177 #define ATA_TRIM_MAX_RANGES     ((UNMAP_BUF_SIZE / \
 178         (ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
 179
 180 struct da_softc {
 181         struct   bio_queue_head bio_queue;
 182         struct   bio_queue_head delete_queue;
 183         struct   bio_queue_head delete_run_queue;
 184         SLIST_ENTRY(da_softc) links;
 185         LIST_HEAD(, ccb_hdr) pending_ccbs;
 186         da_state state;
 187         da_flags flags;
 188         da_quirks quirks;
 189         int      sort_io_queue;
 190         int      minimum_cmd_size;
 191         int      error_inject;
 192         int      ordered_tag_count;
 193         int      outstanding_cmds;
 194         int      trim_max_ranges;
 195         int      delete_running;
 196         int      tur;
 197         int      delete_available;      /* Delete methods possibly available */
 198         uint32_t                unmap_max_ranges;
 199         uint32_t                unmap_max_lba;
 200         uint64_t                ws_max_blks;
 201         da_delete_methods       delete_method;
 202         struct   disk_params params;
 203         struct   disk *disk;
 204         union    ccb saved_ccb;
 205         struct task             sysctl_task;
 206         struct sysctl_ctx_list  sysctl_ctx;
 207         struct sysctl_oid       *sysctl_tree;
 208         struct callout          sendordered_c;
 209         uint64_t wwpn;
 210         uint8_t  unmap_buf[UNMAP_BUF_SIZE];
 211         struct scsi_read_capacity_data_long rcaplong;
 212         struct callout          mediapoll_c;
 213 };
 214
 215 #define dadeleteflag(softc, delete_method, enable)                      \
 216         if (enable) {                                                   \
 217                 softc->delete_available |= (1 << delete_method);        \
 218         } else {                                                        \
 219                 softc->delete_available &= ~(1 << delete_method);       \
 220         }
 221
 222 struct da_quirk_entry {
 223         struct scsi_inquiry_pattern inq_pat;
 224         da_quirks quirks;
 225 };
 226
 227 static const char quantum[] = "QUANTUM";
 228 static const char microp[] = "MICROP";
 229
 230 static struct da_quirk_entry da_quirk_table[] =
 231 {
 232         /* SPI, FC devices */
 233         {
 234                 /*
 235                  * Fujitsu M2513A MO drives.
 236                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 237                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 238                  * Reported by: W.Scholten <whs@xs4all.nl>
 239                  */
 240                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 241                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 242         },
 243         {
 244                 /* See above. */
 245                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 246                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 247         },
 248         {
 249                 /*
 250                  * This particular Fujitsu drive doesn't like the
 251                  * synchronize cache command.
 252                  * Reported by: Tom Jackson <toj@gorilla.net>
 253                  */
 254                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 255                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 256         },
 257         {
 258                 /*
 259                  * This drive doesn't like the synchronize cache command
 260                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 261                  * in NetBSD PR kern/6027, August 24, 1998.
 262                  */
 263                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 264                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 265         },
 266         {
 267                 /*
 268                  * This drive doesn't like the synchronize cache command
 269                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 270                  * (PR 8882).
 271                  */
 272                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 273                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 274         },
 275         {
 276                 /*
 277                  * Doesn't like the synchronize cache command.
 278                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 279                  */
 280                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 281                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 282         },
 283         {
 284                 /*
 285                  * Doesn't like the synchronize cache command.
 286                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 287                  */
 288                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 289                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 290         },
 291         {
 292                 /*
 293                  * Doesn't like the synchronize cache command.
 294                  */
 295                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 296                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 297         },
 298         {
 299                 /*
 300                  * Doesn't like the synchronize cache command.
 301                  * Reported by: walter@pelissero.de
 302                  */
 303                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 304                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 305         },
 306         {
 307                 /*
 308                  * Doesn't work correctly with 6 byte reads/writes.
 309                  * Returns illegal request, and points to byte 9 of the
 310                  * 6-byte CDB.
 311                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 312                  */
 313                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 314                 /*quirks*/ DA_Q_NO_6_BYTE
 315         },
 316         {
 317                 /* See above. */
 318                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 319                 /*quirks*/ DA_Q_NO_6_BYTE
 320         },
 321         {
 322                 /*
 323                  * Doesn't like the synchronize cache command.
 324                  * Reported by: walter@pelissero.de
 325                  */
 326                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 327                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 328         },
 329         {
 330                 /*
 331                  * The CISS RAID controllers do not support SYNC_CACHE
 332                  */
 333                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 334                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 335         },
 336         /* USB mass storage devices supported by umass(4) */
 337         {
 338                 /*
 339                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 340                  * PR: kern/51675
 341                  */
 342                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 343                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 344         },
 345         {
 346                 /*
 347                  * Power Quotient Int. (PQI) USB flash key
 348                  * PR: kern/53067
 349                  */
 350                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 351                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 352         },
 353         {
 354                 /*
 355                  * Creative Nomad MUVO mp3 player (USB)
 356                  * PR: kern/53094
 357                  */
 358                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 359                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 360         },
 361         {
 362                 /*
 363                  * Jungsoft NEXDISK USB flash key
 364                  * PR: kern/54737
 365                  */
 366                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 367                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 368         },
 369         {
 370                 /*
 371                  * FreeDik USB Mini Data Drive
 372                  * PR: kern/54786
 373                  */
 374                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 375                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 376         },
 377         {
 378                 /*
 379                  * Sigmatel USB Flash MP3 Player
 380                  * PR: kern/57046
 381                  */
 382                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 383                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 384         },
 385         {
 386                 /*
 387                  * Neuros USB Digital Audio Computer
 388                  * PR: kern/63645
 389                  */
 390                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 391                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 392         },
 393         {
 394                 /*
 395                  * SEAGRAND NP-900 MP3 Player
 396                  * PR: kern/64563
 397                  */
 398                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 399                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 400         },
 401         {
 402                 /*
 403                  * iRiver iFP MP3 player (with UMS Firmware)
 404                  * PR: kern/54881, i386/63941, kern/66124
 405                  */
 406                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 407                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 408         },
 409         {
 410                 /*
 411                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 412                  * PR: kern/70158
 413                  */
 414                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 415                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 416         },
 417         {
 418                 /*
 419                  * ZICPlay USB MP3 Player with FM
 420                  * PR: kern/75057
 421                  */
 422                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 423                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 424         },
 425         {
 426                 /*
 427                  * TEAC USB floppy mechanisms
 428                  */
 429                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 430                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 431         },
 432         {
 433                 /*
 434                  * Kingston DataTraveler II+ USB Pen-Drive.
 435                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 436                  */
 437                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 438                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 439         },
 440         {
 441                 /*
 442                  * USB DISK Pro PMAP
 443                  * Reported by: jhs
 444                  * PR: usb/96381
 445                  */
 446                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
 447                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 448         },
 449         {
 450                 /*
 451                  * Motorola E398 Mobile Phone (TransFlash memory card).
 452                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 453                  * PR: usb/89889
 454                  */
 455                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 456                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 457         },
 458         {
 459                 /*
 460                  * Qware BeatZkey! Pro
 461                  * PR: usb/79164
 462                  */
 463                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 464                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 465         },
 466         {
 467                 /*
 468                  * Time DPA20B 1GB MP3 Player
 469                  * PR: usb/81846
 470                  */
 471                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 472                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 473         },
 474         {
 475                 /*
 476                  * Samsung USB key 128Mb
 477                  * PR: usb/90081
 478                  */
 479                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 480                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 481         },
 482         {
 483                 /*
 484                  * Kingston DataTraveler 2.0 USB Flash memory.
 485                  * PR: usb/89196
 486                  */
 487                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 488                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 489         },
 490         {
 491                 /*
 492                  * Creative MUVO Slim mp3 player (USB)
 493                  * PR: usb/86131
 494                  */
 495                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 496                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 497                 },
 498         {
 499                 /*
 500                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 501                  * PR: usb/80487
 502                  */
 503                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 504                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 505         },
 506         {
 507                 /*
 508                  * SanDisk Micro Cruzer 128MB
 509                  * PR: usb/75970
 510                  */
 511                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 512                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 513         },
 514         {
 515                 /*
 516                  * TOSHIBA TransMemory USB sticks
 517                  * PR: kern/94660
 518                  */
 519                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 520                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 521         },
 522         {
 523                 /*
 524                  * PNY USB Flash keys
 525                  * PR: usb/75578, usb/72344, usb/65436
 526                  */
 527                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 528                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 529         },
 530         {
 531                 /*
 532                  * Genesys 6-in-1 Card Reader
 533                  * PR: usb/94647
 534                  */
 535                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 536                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 537         },
 538         {
 539                 /*
 540                  * Rekam Digital CAMERA
 541                  * PR: usb/98713
 542                  */
 543                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 544                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 545         },
 546         {
 547                 /*
 548                  * iRiver H10 MP3 player
 549                  * PR: usb/102547
 550                  */
 551                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 552                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 553         },
 554         {
 555                 /*
 556                  * iRiver U10 MP3 player
 557                  * PR: usb/92306
 558                  */
 559                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 560                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 561         },
 562         {
 563                 /*
 564                  * X-Micro Flash Disk
 565                  * PR: usb/96901
 566                  */
 567                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 568                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 569         },
 570         {
 571                 /*
 572                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 573                  * PR: usb/96546
 574                  */
 575                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 576                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 577         },
 578         {
 579                 /*
 580                  * Denver MP3 player
 581                  * PR: usb/107101
 582                  */
 583                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 584                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 585         },
 586         {
 587                 /*
 588                  * Philips USB Key Audio KEY013
 589                  * PR: usb/68412
 590                  */
 591                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 592                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 593         },
 594         {
 595                 /*
 596                  * JNC MP3 Player
 597                  * PR: usb/94439
 598                  */
 599                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 600                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 601         },
 602         {
 603                 /*
 604                  * SAMSUNG MP0402H
 605                  * PR: usb/108427
 606                  */
 607                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 608                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 609         },
 610         {
 611                 /*
 612                  * I/O Magic USB flash - Giga Bank
 613                  * PR: usb/108810
 614                  */
 615                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 616                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 617         },
 618         {
 619                 /*
 620                  * JoyFly 128mb USB Flash Drive
 621                  * PR: 96133
 622                  */
 623                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 624                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 625         },
 626         {
 627                 /*
 628                  * ChipsBnk usb stick
 629                  * PR: 103702
 630                  */
 631                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 632                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 633         },
 634         {
 635                 /*
 636                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 637                  * PR: 129858
 638                  */
 639                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 640                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 641         },
 642         {
 643                 /*
 644                  * Samsung YP-U3 mp3-player
 645                  * PR: 125398
 646                  */
 647                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 648                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 649         },
 650         {
 651                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 652                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 653         },
 654         {
 655                 /*
 656                  * Sony Cyber-Shot DSC cameras
 657                  * PR: usb/137035
 658                  */
 659                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 660                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 661         },
 662         {
 663                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
 664                  "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
 665         },
 666         /* ATA/SATA devices over SAS/USB/... */
 667         {
 668                 /* Hitachi Advanced Format (4k) drives */
 669                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 670                 /*quirks*/DA_Q_4K
 671         },
 672         {
 673                 /* Samsung Advanced Format (4k) drives */
 674                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 675                 /*quirks*/DA_Q_4K
 676         },
 677         {
 678                 /* Samsung Advanced Format (4k) drives */
 679                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 680                 /*quirks*/DA_Q_4K
 681         },
 682         {
 683                 /* Samsung Advanced Format (4k) drives */
 684                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 685                 /*quirks*/DA_Q_4K
 686         },
 687         {
 688                 /* Samsung Advanced Format (4k) drives */
 689                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 690                 /*quirks*/DA_Q_4K
 691         },
 692         {
 693                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 694                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 695                 /*quirks*/DA_Q_4K
 696         },
 697         {
 698                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 699                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 700                 /*quirks*/DA_Q_4K
 701         },
 702         {
 703                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 704                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 705                 /*quirks*/DA_Q_4K
 706         },
 707         {
 708                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 709                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 710                 /*quirks*/DA_Q_4K
 711         },
 712         {
 713                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 714                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 715                 /*quirks*/DA_Q_4K
 716         },
 717         {
 718                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 719                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 720                 /*quirks*/DA_Q_4K
 721         },
 722         {
 723                 /* Seagate Momentus Advanced Format (4k) drives */
 724                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 725                 /*quirks*/DA_Q_4K
 726         },
 727         {
 728                 /* Seagate Momentus Advanced Format (4k) drives */
 729                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 730                 /*quirks*/DA_Q_4K
 731         },
 732         {
 733                 /* Seagate Momentus Advanced Format (4k) drives */
 734                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 735                 /*quirks*/DA_Q_4K
 736         },
 737         {
 738                 /* Seagate Momentus Advanced Format (4k) drives */
 739                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 740                 /*quirks*/DA_Q_4K
 741         },
 742         {
 743                 /* Seagate Momentus Advanced Format (4k) drives */
 744                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 745                 /*quirks*/DA_Q_4K
 746         },
 747         {
 748                 /* Seagate Momentus Advanced Format (4k) drives */
 749                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 750                 /*quirks*/DA_Q_4K
 751         },
 752         {
 753                 /* Seagate Momentus Advanced Format (4k) drives */
 754                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 755                 /*quirks*/DA_Q_4K
 756         },
 757         {
 758                 /* Seagate Momentus Advanced Format (4k) drives */
 759                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 760                 /*quirks*/DA_Q_4K
 761         },
 762         {
 763                 /* Seagate Momentus Advanced Format (4k) drives */
 764                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 765                 /*quirks*/DA_Q_4K
 766         },
 767         {
 768                 /* Seagate Momentus Advanced Format (4k) drives */
 769                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 770                 /*quirks*/DA_Q_4K
 771         },
 772         {
 773                 /* Seagate Momentus Advanced Format (4k) drives */
 774                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 775                 /*quirks*/DA_Q_4K
 776         },
 777         {
 778                 /* Seagate Momentus Advanced Format (4k) drives */
 779                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 780                 /*quirks*/DA_Q_4K
 781         },
 782         {
 783                 /* Seagate Momentus Advanced Format (4k) drives */
 784                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 785                 /*quirks*/DA_Q_4K
 786         },
 787         {
 788                 /* Seagate Momentus Advanced Format (4k) drives */
 789                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 790                 /*quirks*/DA_Q_4K
 791         },
 792         {
 793                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 794                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 795                 /*quirks*/DA_Q_4K
 796         },
 797         {
 798                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 799                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 800                 /*quirks*/DA_Q_4K
 801         },
 802         {
 803                 /* WDC Caviar Green Advanced Format (4k) drives */
 804                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 805                 /*quirks*/DA_Q_4K
 806         },
 807         {
 808                 /* WDC Caviar Green Advanced Format (4k) drives */
 809                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 810                 /*quirks*/DA_Q_4K
 811         },
 812         {
 813                 /* WDC Caviar Green Advanced Format (4k) drives */
 814                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 815                 /*quirks*/DA_Q_4K
 816         },
 817         {
 818                 /* WDC Caviar Green Advanced Format (4k) drives */
 819                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 820                 /*quirks*/DA_Q_4K
 821         },
 822         {
 823                 /* WDC Caviar Green Advanced Format (4k) drives */
 824                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 825                 /*quirks*/DA_Q_4K
 826         },
 827         {
 828                 /* WDC Caviar Green Advanced Format (4k) drives */
 829                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 830                 /*quirks*/DA_Q_4K
 831         },
 832         {
 833                 /* WDC Caviar Green Advanced Format (4k) drives */
 834                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 835                 /*quirks*/DA_Q_4K
 836         },
 837         {
 838                 /* WDC Caviar Green Advanced Format (4k) drives */
 839                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 840                 /*quirks*/DA_Q_4K
 841         },
 842         {
 843                 /* WDC Scorpio Black Advanced Format (4k) drives */
 844                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 845                 /*quirks*/DA_Q_4K
 846         },
 847         {
 848                 /* WDC Scorpio Black Advanced Format (4k) drives */
 849                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 850                 /*quirks*/DA_Q_4K
 851         },
 852         {
 853                 /* WDC Scorpio Black Advanced Format (4k) drives */
 854                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 855                 /*quirks*/DA_Q_4K
 856         },
 857         {
 858                 /* WDC Scorpio Black Advanced Format (4k) drives */
 859                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 860                 /*quirks*/DA_Q_4K
 861         },
 862         {
 863                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 864                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 865                 /*quirks*/DA_Q_4K
 866         },
 867         {
 868                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 869                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 870                 /*quirks*/DA_Q_4K
 871         },
 872         {
 873                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 874                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 875                 /*quirks*/DA_Q_4K
 876         },
 877         {
 878                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 879                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 880                 /*quirks*/DA_Q_4K
 881         },
 882         {
 883                 /*
 884                  * Olympus FE-210 camera
 885                  */
 886                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 887                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 888         },
 889         {
 890                 /*
 891                  * LG UP3S MP3 player
 892                  */
 893                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 894                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 895         },
 896         {
 897                 /*
 898                  * Laser MP3-2GA13 MP3 player
 899                  */
 900                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 901                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 902         },
 903         {
 904                 /*
 905                  * LaCie external 250GB Hard drive des by Porsche
 906                  * Submitted by: Ben Stuyts <ben@altesco.nl>
 907                  * PR: 121474
 908                  */
 909                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
 910                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 911         },
 912         /* SATA SSDs */
 913         {
 914                 /*
 915                  * Corsair Force 2 SSDs
 916                  * 4k optimised & trim only works in 4k requests + 4k aligned
 917                  */
 918                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
 919                 /*quirks*/DA_Q_4K
 920         },
 921         {
 922                 /*
 923                  * Corsair Force 3 SSDs
 924                  * 4k optimised & trim only works in 4k requests + 4k aligned
 925                  */
 926                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
 927                 /*quirks*/DA_Q_4K
 928         },
 929         {
 930                 /*
 931                  * Corsair Force GT SSDs
 932                  * 4k optimised & trim only works in 4k requests + 4k aligned
 933                  */
 934                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force GT*", "*" },
 935                 /*quirks*/DA_Q_4K
 936         },
 937         {
 938                 /*
 939                  * Crucial M4 SSDs
 940                  * 4k optimised & trim only works in 4k requests + 4k aligned
 941                  */
 942                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
 943                 /*quirks*/DA_Q_4K
 944         },
 945         {
 946                 /*
 947                  * Crucial RealSSD C300 SSDs
 948                  * 4k optimised
 949                  */
 950                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
 951                 "*" }, /*quirks*/DA_Q_4K
 952         },
 953         {
 954                 /*
 955                  * Intel 320 Series SSDs
 956                  * 4k optimised & trim only works in 4k requests + 4k aligned
 957                  */
 958                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
 959                 /*quirks*/DA_Q_4K
 960         },
 961         {
 962                 /*
 963                  * Intel 330 Series SSDs
 964                  * 4k optimised & trim only works in 4k requests + 4k aligned
 965                  */
 966                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
 967                 /*quirks*/DA_Q_4K
 968         },
 969         {
 970                 /*
 971                  * Intel 510 Series SSDs
 972                  * 4k optimised & trim only works in 4k requests + 4k aligned
 973                  */
 974                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
 975                 /*quirks*/DA_Q_4K
 976         },
 977         {
 978                 /*
 979                  * Intel 520 Series SSDs
 980                  * 4k optimised & trim only works in 4k requests + 4k aligned
 981                  */
 982                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
 983                 /*quirks*/DA_Q_4K
 984         },
 985         {
 986                 /*
 987                  * Kingston E100 Series SSDs
 988                  * 4k optimised & trim only works in 4k requests + 4k aligned
 989                  */
 990                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
 991                 /*quirks*/DA_Q_4K
 992         },
 993         {
 994                 /*
 995                  * Kingston HyperX 3k SSDs
 996                  * 4k optimised & trim only works in 4k requests + 4k aligned
 997                  */
 998                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
 999                 /*quirks*/DA_Q_4K
1000         },
1001         {
1002                 /*
1003                  * OCZ Agility 3 SSDs
1004                  * 4k optimised & trim only works in 4k requests + 4k aligned
1005                  */
1006                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1007                 /*quirks*/DA_Q_4K
1008         },
1009         {
1010                 /*
1011                  * OCZ Deneva R Series SSDs
1012                  * 4k optimised & trim only works in 4k requests + 4k aligned
1013                  */
1014                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1015                 /*quirks*/DA_Q_4K
1016         },
1017         {
1018                 /*
1019                  * OCZ Vertex 2 SSDs (inc pro series)
1020                  * 4k optimised & trim only works in 4k requests + 4k aligned
1021                  */
1022                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1023                 /*quirks*/DA_Q_4K
1024         },
1025         {
1026                 /*
1027                  * OCZ Vertex 3 SSDs
1028                  * 4k optimised & trim only works in 4k requests + 4k aligned
1029                  */
1030                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1031                 /*quirks*/DA_Q_4K
1032         },
1033         {
1034                 /*
1035                  * OCZ Vertex 4 SSDs
1036                  * 4k optimised & trim only works in 4k requests + 4k aligned
1037                  */
1038                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1039                 /*quirks*/DA_Q_4K
1040         },
1041         {
1042                 /*
1043                  * Samsung 830 Series SSDs
1044                  * 4k optimised & trim only works in 4k requests + 4k aligned
1045                  */
1046                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1047                 /*quirks*/DA_Q_4K
1048         },
1049         {
1050                 /*
1051                  * SuperTalent TeraDrive CT SSDs
1052                  * 4k optimised & trim only works in 4k requests + 4k aligned
1053                  */
1054                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1055                 /*quirks*/DA_Q_4K
1056         },
1057         {
1058                 /*
1059                  * XceedIOPS SATA SSDs
1060                  * 4k optimised
1061                  */
1062                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1063                 /*quirks*/DA_Q_4K
1064         },
1065 };
1066
1067 static  disk_strategy_t dastrategy;
1068 static  dumper_t        dadump;
1069 static  periph_init_t   dainit;
1070 static  void            daasync(void *callback_arg, u_int32_t code,
1071                                 struct cam_path *path, void *arg);
1072 static  void            dasysctlinit(void *context, int pending);
1073 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1074 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1075 static  int             dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1076 static  void            dadeletemethodset(struct da_softc *softc,
1077                                           da_delete_methods delete_method);
1078 static  off_t           dadeletemaxsize(struct da_softc *softc,
1079                                         da_delete_methods delete_method);
1080 static  void            dadeletemethodchoose(struct da_softc *softc,
1081                                              da_delete_methods default_method);
1082 static  void            daprobedone(struct cam_periph *periph, union ccb *ccb);
1083
1084 static  periph_ctor_t   daregister;
1085 static  periph_dtor_t   dacleanup;
1086 static  periph_start_t  dastart;
1087 static  periph_oninv_t  daoninvalidate;
1088 static  void            dadone(struct cam_periph *periph,
1089                                union ccb *done_ccb);
1090 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
1091                                 u_int32_t sense_flags);
1092 static void             daprevent(struct cam_periph *periph, int action);
1093 static void             dareprobe(struct cam_periph *periph);
1094 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
1095                                   uint64_t maxsector,
1096                                   struct scsi_read_capacity_data_long *rcaplong,
1097                                   size_t rcap_size);
1098 static timeout_t        dasendorderedtag;
1099 static void             dashutdown(void *arg, int howto);
1100 static timeout_t        damediapoll;
1101
1102 #ifndef DA_DEFAULT_POLL_PERIOD
1103 #define DA_DEFAULT_POLL_PERIOD  3
1104 #endif
1105
1106 #ifndef DA_DEFAULT_TIMEOUT
1107 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
1108 #endif
1109
1110 #ifndef DA_DEFAULT_RETRY
1111 #define DA_DEFAULT_RETRY        4
1112 #endif
1113
1114 #ifndef DA_DEFAULT_SEND_ORDERED
1115 #define DA_DEFAULT_SEND_ORDERED 1
1116 #endif
1117
1118 #define DA_SIO (softc->sort_io_queue >= 0 ? \
1119     softc->sort_io_queue : cam_sort_io_queues)
1120
1121 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1122 static int da_retry_count = DA_DEFAULT_RETRY;
1123 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1124 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1125
1126 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1127             "CAM Direct Access Disk driver");
1128 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
1129            &da_poll_period, 0, "Media polling period in seconds");
1130 TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
1131 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
1132            &da_retry_count, 0, "Normal I/O retry count");
1133 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
1134 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
1135            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1136 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
1137 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
1138            &da_send_ordered, 0, "Send Ordered Tags");
1139 TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
1140
1141 /*
1142  * DA_ORDEREDTAG_INTERVAL determines how often, relative
1143  * to the default timeout, we check to see whether an ordered
1144  * tagged transaction is appropriate to prevent simple tag
1145  * starvation.  Since we'd like to ensure that there is at least
1146  * 1/2 of the timeout length left for a starved transaction to
1147  * complete after we've sent an ordered tag, we must poll at least
1148  * four times in every timeout period.  This takes care of the worst
1149  * case where a starved transaction starts during an interval that
1150  * meets the requirement "don't send an ordered tag" test so it takes
1151  * us two intervals to determine that a tag must be sent.
1152  */
1153 #ifndef DA_ORDEREDTAG_INTERVAL
1154 #define DA_ORDEREDTAG_INTERVAL 4
1155 #endif
1156
1157 static struct periph_driver dadriver =
1158 {
1159         dainit, "da",
1160         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1161 };
1162
1163 PERIPHDRIVER_DECLARE(da, dadriver);
1164
1165 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1166
1167 static int
1168 daopen(struct disk *dp)
1169 {
1170         struct cam_periph *periph;
1171         struct da_softc *softc;
1172         int unit;
1173         int error;
1174
1175         periph = (struct cam_periph *)dp->d_drv1;
1176         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1177                 return (ENXIO);
1178         }
1179
1180         cam_periph_lock(periph);
1181         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1182                 cam_periph_unlock(periph);
1183                 cam_periph_release(periph);
1184                 return (error);
1185         }
1186
1187         unit = periph->unit_number;
1188         softc = (struct da_softc *)periph->softc;
1189         softc->flags |= DA_FLAG_OPEN;
1190
1191         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1192             ("daopen\n"));
1193
1194         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1195                 /* Invalidate our pack information. */
1196                 softc->flags &= ~DA_FLAG_PACK_INVALID;
1197         }
1198
1199         dareprobe(periph);
1200
1201         /* Wait for the disk size update.  */
1202         error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1203             "dareprobe", 0);
1204         if (error != 0)
1205                 xpt_print(periph->path, "unable to retrieve capacity data");
1206
1207         if (periph->flags & CAM_PERIPH_INVALID ||
1208             softc->disk->d_sectorsize == 0 ||
1209             softc->disk->d_mediasize == 0)
1210                 error = ENXIO;
1211
1212         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1213             (softc->quirks & DA_Q_NO_PREVENT) == 0)
1214                 daprevent(periph, PR_PREVENT);
1215
1216         if (error == 0)
1217                 softc->flags |= DA_FLAG_SAW_MEDIA;
1218
1219         cam_periph_unhold(periph);
1220         cam_periph_unlock(periph);
1221
1222         if (error != 0) {
1223                 softc->flags &= ~DA_FLAG_OPEN;
1224                 cam_periph_release(periph);
1225         }
1226
1227         return (error);
1228 }
1229
1230 static int
1231 daclose(struct disk *dp)
1232 {
1233         struct  cam_periph *periph;
1234         struct  da_softc *softc;
1235
1236         periph = (struct cam_periph *)dp->d_drv1;
1237         cam_periph_lock(periph);
1238         if (cam_periph_hold(periph, PRIBIO) != 0) {
1239                 cam_periph_unlock(periph);
1240                 cam_periph_release(periph);
1241                 return (0);
1242         }
1243
1244         softc = (struct da_softc *)periph->softc;
1245
1246         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1247             ("daclose\n"));
1248
1249         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0
1250          && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1251                 union   ccb *ccb;
1252
1253                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1254
1255                 scsi_synchronize_cache(&ccb->csio,
1256                                        /*retries*/1,
1257                                        /*cbfcnp*/dadone,
1258                                        MSG_SIMPLE_Q_TAG,
1259                                        /*begin_lba*/0,/* Cover the whole disk */
1260                                        /*lb_count*/0,
1261                                        SSD_FULL_SIZE,
1262                                        5 * 60 * 1000);
1263
1264                 cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1265                                   /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1266                                   softc->disk->d_devstat);
1267                 xpt_release_ccb(ccb);
1268
1269         }
1270
1271         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
1272                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1273                         daprevent(periph, PR_ALLOW);
1274                 /*
1275                  * If we've got removeable media, mark the blocksize as
1276                  * unavailable, since it could change when new media is
1277                  * inserted.
1278                  */
1279                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1280         }
1281
1282         softc->flags &= ~DA_FLAG_OPEN;
1283         cam_periph_unhold(periph);
1284         cam_periph_unlock(periph);
1285         cam_periph_release(periph);
1286         return (0);
1287 }
1288
1289 static void
1290 daschedule(struct cam_periph *periph)
1291 {
1292         struct da_softc *softc = (struct da_softc *)periph->softc;
1293         uint32_t prio;
1294
1295         if (softc->state != DA_STATE_NORMAL)
1296                 return;
1297
1298         /* Check if cam_periph_getccb() was called. */
1299         prio = periph->immediate_priority;
1300
1301         /* Check if we have more work to do. */
1302         if (bioq_first(&softc->bio_queue) ||
1303             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1304             softc->tur) {
1305                 prio = CAM_PRIORITY_NORMAL;
1306         }
1307
1308         /* Schedule CCB if any of above is true. */
1309         if (prio != CAM_PRIORITY_NONE)
1310                 xpt_schedule(periph, prio);
1311 }
1312
1313 /*
1314  * Actually translate the requested transfer into one the physical driver
1315  * can understand.  The transfer is described by a buf and will include
1316  * only one physical transfer.
1317  */
1318 static void
1319 dastrategy(struct bio *bp)
1320 {
1321         struct cam_periph *periph;
1322         struct da_softc *softc;
1323
1324         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1325         softc = (struct da_softc *)periph->softc;
1326
1327         cam_periph_lock(periph);
1328
1329         /*
1330          * If the device has been made invalid, error out
1331          */
1332         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1333                 cam_periph_unlock(periph);
1334                 biofinish(bp, NULL, ENXIO);
1335                 return;
1336         }
1337
1338         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1339
1340         /*
1341          * Place it in the queue of disk activities for this disk
1342          */
1343         if (bp->bio_cmd == BIO_DELETE) {
1344                 if (bp->bio_bcount == 0)
1345                         biodone(bp);
1346                 else if (DA_SIO)
1347                         bioq_disksort(&softc->delete_queue, bp);
1348                 else
1349                         bioq_insert_tail(&softc->delete_queue, bp);
1350         } else if (DA_SIO) {
1351                 bioq_disksort(&softc->bio_queue, bp);
1352         } else {
1353                 bioq_insert_tail(&softc->bio_queue, bp);
1354         }
1355
1356         /*
1357          * Schedule ourselves for performing the work.
1358          */
1359         daschedule(periph);
1360         cam_periph_unlock(periph);
1361
1362         return;
1363 }
1364
1365 static int
1366 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1367 {
1368         struct      cam_periph *periph;
1369         struct      da_softc *softc;
1370         u_int       secsize;
1371         struct      ccb_scsiio csio;
1372         struct      disk *dp;
1373         int         error = 0;
1374
1375         dp = arg;
1376         periph = dp->d_drv1;
1377         softc = (struct da_softc *)periph->softc;
1378         cam_periph_lock(periph);
1379         secsize = softc->params.secsize;
1380
1381         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1382                 cam_periph_unlock(periph);
1383                 return (ENXIO);
1384         }
1385
1386         if (length > 0) {
1387                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1388                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1389                 scsi_read_write(&csio,
1390                                 /*retries*/0,
1391                                 dadone,
1392                                 MSG_ORDERED_Q_TAG,
1393                                 /*read*/SCSI_RW_WRITE,
1394                                 /*byte2*/0,
1395                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1396                                 offset / secsize,
1397                                 length / secsize,
1398                                 /*data_ptr*/(u_int8_t *) virtual,
1399                                 /*dxfer_len*/length,
1400                                 /*sense_len*/SSD_FULL_SIZE,
1401                                 da_default_timeout * 1000);
1402                 xpt_polled_action((union ccb *)&csio);
1403
1404                 error = cam_periph_error((union ccb *)&csio,
1405                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1406                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1407                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1408                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1409                 if (error != 0)
1410                         printf("Aborting dump due to I/O error.\n");
1411                 cam_periph_unlock(periph);
1412                 return (error);
1413         }
1414
1415         /*
1416          * Sync the disk cache contents to the physical media.
1417          */
1418         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1419
1420                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1421                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1422                 scsi_synchronize_cache(&csio,
1423                                        /*retries*/0,
1424                                        /*cbfcnp*/dadone,
1425                                        MSG_SIMPLE_Q_TAG,
1426                                        /*begin_lba*/0,/* Cover the whole disk */
1427                                        /*lb_count*/0,
1428                                        SSD_FULL_SIZE,
1429                                        5 * 60 * 1000);
1430                 xpt_polled_action((union ccb *)&csio);
1431
1432                 error = cam_periph_error((union ccb *)&csio,
1433                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1434                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1435                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1436                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1437                 if (error != 0)
1438                         xpt_print(periph->path, "Synchronize cache failed\n");
1439         }
1440         cam_periph_unlock(periph);
1441         return (error);
1442 }
1443
1444 static int
1445 dagetattr(struct bio *bp)
1446 {
1447         int ret;
1448         struct cam_periph *periph;
1449
1450         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1451         cam_periph_lock(periph);
1452         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1453             periph->path);
1454         cam_periph_unlock(periph);
1455         if (ret == 0)
1456                 bp->bio_completed = bp->bio_length;
1457         return ret;
1458 }
1459
1460 static void
1461 dainit(void)
1462 {
1463         cam_status status;
1464
1465         /*
1466          * Install a global async callback.  This callback will
1467          * receive async callbacks like "new device found".
1468          */
1469         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1470
1471         if (status != CAM_REQ_CMP) {
1472                 printf("da: Failed to attach master async callback "
1473                        "due to status 0x%x!\n", status);
1474         } else if (da_send_ordered) {
1475
1476                 /* Register our shutdown event handler */
1477                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1478                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1479                     printf("dainit: shutdown event registration failed!\n");
1480         }
1481 }
1482
1483 /*
1484  * Callback from GEOM, called when it has finished cleaning up its
1485  * resources.
1486  */
1487 static void
1488 dadiskgonecb(struct disk *dp)
1489 {
1490         struct cam_periph *periph;
1491
1492         periph = (struct cam_periph *)dp->d_drv1;
1493         cam_periph_release(periph);
1494 }
1495
1496 static void
1497 daoninvalidate(struct cam_periph *periph)
1498 {
1499         struct da_softc *softc;
1500
1501         softc = (struct da_softc *)periph->softc;
1502
1503         /*
1504          * De-register any async callbacks.
1505          */
1506         xpt_register_async(0, daasync, periph, periph->path);
1507
1508         softc->flags |= DA_FLAG_PACK_INVALID;
1509
1510         /*
1511          * Return all queued I/O with ENXIO.
1512          * XXX Handle any transactions queued to the card
1513          *     with XPT_ABORT_CCB.
1514          */
1515         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1516         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1517
1518         /*
1519          * Tell GEOM that we've gone away, we'll get a callback when it is
1520          * done cleaning up its resources.
1521          */
1522         disk_gone(softc->disk);
1523
1524         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1525                   softc->outstanding_cmds, periph->refcount);
1526 }
1527
1528 static void
1529 dacleanup(struct cam_periph *periph)
1530 {
1531         struct da_softc *softc;
1532
1533         softc = (struct da_softc *)periph->softc;
1534
1535         xpt_print(periph->path, "removing device entry\n");
1536         cam_periph_unlock(periph);
1537
1538         /*
1539          * If we can't free the sysctl tree, oh well...
1540          */
1541         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1542             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1543                 xpt_print(periph->path, "can't remove sysctl context\n");
1544         }
1545
1546         callout_drain(&softc->mediapoll_c);
1547         disk_destroy(softc->disk);
1548         callout_drain(&softc->sendordered_c);
1549         free(softc, M_DEVBUF);
1550         cam_periph_lock(periph);
1551 }
1552
1553 static void
1554 daasync(void *callback_arg, u_int32_t code,
1555         struct cam_path *path, void *arg)
1556 {
1557         struct cam_periph *periph;
1558         struct da_softc *softc;
1559
1560         periph = (struct cam_periph *)callback_arg;
1561         switch (code) {
1562         case AC_FOUND_DEVICE:
1563         {
1564                 struct ccb_getdev *cgd;
1565                 cam_status status;
1566
1567                 cgd = (struct ccb_getdev *)arg;
1568                 if (cgd == NULL)
1569                         break;
1570
1571                 if (cgd->protocol != PROTO_SCSI)
1572                         break;
1573
1574                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1575                     && SID_TYPE(&cgd->inq_data) != T_RBC
1576                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1577                         break;
1578
1579                 /*
1580                  * Allocate a peripheral instance for
1581                  * this device and start the probe
1582                  * process.
1583                  */
1584                 status = cam_periph_alloc(daregister, daoninvalidate,
1585                                           dacleanup, dastart,
1586                                           "da", CAM_PERIPH_BIO,
1587                                           cgd->ccb_h.path, daasync,
1588                                           AC_FOUND_DEVICE, cgd);
1589
1590                 if (status != CAM_REQ_CMP
1591                  && status != CAM_REQ_INPROG)
1592                         printf("daasync: Unable to attach to new device "
1593                                 "due to status 0x%x\n", status);
1594                 return;
1595         }
1596         case AC_ADVINFO_CHANGED:
1597         {
1598                 uintptr_t buftype;
1599
1600                 buftype = (uintptr_t)arg;
1601                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1602                         struct da_softc *softc;
1603
1604                         softc = periph->softc;
1605                         disk_attr_changed(softc->disk, "GEOM::physpath",
1606                                           M_NOWAIT);
1607                 }
1608                 break;
1609         }
1610         case AC_UNIT_ATTENTION:
1611         {
1612                 union ccb *ccb;
1613                 int error_code, sense_key, asc, ascq;
1614
1615                 softc = (struct da_softc *)periph->softc;
1616                 ccb = (union ccb *)arg;
1617
1618                 /*
1619                  * Handle all UNIT ATTENTIONs except our own,
1620                  * as they will be handled by daerror().
1621                  */
1622                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1623                     scsi_extract_sense_ccb(ccb,
1624                      &error_code, &sense_key, &asc, &ascq)) {
1625                         if (asc == 0x2A && ascq == 0x09) {
1626                                 xpt_print(ccb->ccb_h.path,
1627                                     "capacity data has changed\n");
1628                                 dareprobe(periph);
1629                         } else if (asc == 0x28 && ascq == 0x00)
1630                                 disk_media_changed(softc->disk, M_NOWAIT);
1631                 }
1632                 cam_periph_async(periph, code, path, arg);
1633                 break;
1634         }
1635         case AC_SCSI_AEN:
1636                 softc = (struct da_softc *)periph->softc;
1637                 if (!softc->tur) {
1638                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1639                                 softc->tur = 1;
1640                                 daschedule(periph);
1641                         }
1642                 }
1643                 /* FALLTHROUGH */
1644         case AC_SENT_BDR:
1645         case AC_BUS_RESET:
1646         {
1647                 struct ccb_hdr *ccbh;
1648
1649                 softc = (struct da_softc *)periph->softc;
1650                 /*
1651                  * Don't fail on the expected unit attention
1652                  * that will occur.
1653                  */
1654                 softc->flags |= DA_FLAG_RETRY_UA;
1655                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1656                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1657                 break;
1658         }
1659         default:
1660                 break;
1661         }
1662         cam_periph_async(periph, code, path, arg);
1663 }
1664
1665 static void
1666 dasysctlinit(void *context, int pending)
1667 {
1668         struct cam_periph *periph;
1669         struct da_softc *softc;
1670         char tmpstr[80], tmpstr2[80];
1671         struct ccb_trans_settings cts;
1672
1673         periph = (struct cam_periph *)context;
1674         /*
1675          * periph was held for us when this task was enqueued
1676          */
1677         if (periph->flags & CAM_PERIPH_INVALID) {
1678                 cam_periph_release(periph);
1679                 return;
1680         }
1681
1682         softc = (struct da_softc *)periph->softc;
1683         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1684         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1685
1686         sysctl_ctx_init(&softc->sysctl_ctx);
1687         softc->flags |= DA_FLAG_SCTX_INIT;
1688         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1689                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1690                 CTLFLAG_RD, 0, tmpstr);
1691         if (softc->sysctl_tree == NULL) {
1692                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1693                 cam_periph_release(periph);
1694                 return;
1695         }
1696
1697         /*
1698          * Now register the sysctl handler, so the user can change the value on
1699          * the fly.
1700          */
1701         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1702                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1703                 softc, 0, dadeletemethodsysctl, "A",
1704                 "BIO_DELETE execution method");
1705         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1706                 OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1707                 softc, 0, dadeletemaxsysctl, "Q",
1708                 "Maximum BIO_DELETE size");
1709         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1710                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1711                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1712                 "Minimum CDB size");
1713         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1714                 OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1715                 "Sort IO queue to try and optimise disk access patterns");
1716
1717         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1718                        SYSCTL_CHILDREN(softc->sysctl_tree),
1719                        OID_AUTO,
1720                        "error_inject",
1721                        CTLFLAG_RW,
1722                        &softc->error_inject,
1723                        0,
1724                        "error_inject leaf");
1725
1726
1727         /*
1728          * Add some addressing info.
1729          */
1730         memset(&cts, 0, sizeof (cts));
1731         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1732         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1733         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1734         cam_periph_lock(periph);
1735         xpt_action((union ccb *)&cts);
1736         cam_periph_unlock(periph);
1737         if (cts.ccb_h.status != CAM_REQ_CMP) {
1738                 cam_periph_release(periph);
1739                 return;
1740         }
1741         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1742                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1743                 if (fc->valid & CTS_FC_VALID_WWPN) {
1744                         softc->wwpn = fc->wwpn;
1745                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1746                             SYSCTL_CHILDREN(softc->sysctl_tree),
1747                             OID_AUTO, "wwpn", CTLFLAG_RD,
1748                             &softc->wwpn, "World Wide Port Name");
1749                 }
1750         }
1751         cam_periph_release(periph);
1752 }
1753
1754 static int
1755 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1756 {
1757         int error;
1758         uint64_t value;
1759         struct da_softc *softc;
1760
1761         softc = (struct da_softc *)arg1;
1762
1763         value = softc->disk->d_delmaxsize;
1764         error = sysctl_handle_64(oidp, &value, 0, req);
1765         if ((error != 0) || (req->newptr == NULL))
1766                 return (error);
1767
1768         /* only accept values smaller than the calculated value */
1769         if (value > dadeletemaxsize(softc, softc->delete_method)) {
1770                 return (EINVAL);
1771         }
1772         softc->disk->d_delmaxsize = value;
1773
1774         return (0);
1775 }
1776
1777 static int
1778 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1779 {
1780         int error, value;
1781
1782         value = *(int *)arg1;
1783
1784         error = sysctl_handle_int(oidp, &value, 0, req);
1785
1786         if ((error != 0)
1787          || (req->newptr == NULL))
1788                 return (error);
1789
1790         /*
1791          * Acceptable values here are 6, 10, 12 or 16.
1792          */
1793         if (value < 6)
1794                 value = 6;
1795         else if ((value > 6)
1796               && (value <= 10))
1797                 value = 10;
1798         else if ((value > 10)
1799               && (value <= 12))
1800                 value = 12;
1801         else if (value > 12)
1802                 value = 16;
1803
1804         *(int *)arg1 = value;
1805
1806         return (0);
1807 }
1808
1809 static void
1810 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1811 {
1812
1813
1814         softc->delete_method = delete_method;
1815         softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1816
1817         if (softc->delete_method > DA_DELETE_DISABLE)
1818                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
1819         else
1820                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1821 }
1822
1823 static off_t
1824 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1825 {
1826         off_t sectors;
1827
1828         switch(delete_method) {
1829         case DA_DELETE_UNMAP:
1830                 sectors = (off_t)softc->unmap_max_lba * softc->unmap_max_ranges;
1831                 break;
1832         case DA_DELETE_ATA_TRIM:
1833                 sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1834                 break;
1835         case DA_DELETE_WS16:
1836                 sectors = (off_t)min(softc->ws_max_blks, WS16_MAX_BLKS);
1837                 break;
1838         case DA_DELETE_ZERO:
1839         case DA_DELETE_WS10:
1840                 sectors = (off_t)min(softc->ws_max_blks, WS10_MAX_BLKS);
1841                 break;
1842         default:
1843                 return 0;
1844         }
1845
1846         return (off_t)softc->params.secsize *
1847             min(sectors, (off_t)softc->params.sectors);
1848 }
1849
1850 static void
1851 daprobedone(struct cam_periph *periph, union ccb *ccb)
1852 {
1853         struct da_softc *softc;
1854
1855         softc = (struct da_softc *)periph->softc;
1856
1857         dadeletemethodchoose(softc, DA_DELETE_NONE);
1858
1859         if (bootverbose && (softc->flags & DA_FLAG_PROBED) == 0) {
1860                 char buf[80];
1861                 int i, sep;
1862
1863                 snprintf(buf, sizeof(buf), "Delete methods: <");
1864                 sep = 0;
1865                 for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1866                         if (softc->delete_available & (1 << i)) {
1867                                 if (sep) {
1868                                         strlcat(buf, ",", sizeof(buf));
1869                                 } else {
1870                                     sep = 1;
1871                                 }
1872                                 strlcat(buf, da_delete_method_names[i],
1873                                     sizeof(buf));
1874                                 if (i == softc->delete_method) {
1875                                         strlcat(buf, "(*)", sizeof(buf));
1876                                 }
1877                         }
1878                 }
1879                 if (sep == 0) {
1880                         if (softc->delete_method == DA_DELETE_NONE)
1881                                 strlcat(buf, "NONE(*)", sizeof(buf));
1882                         else
1883                                 strlcat(buf, "DISABLED(*)", sizeof(buf));
1884                 }
1885                 strlcat(buf, ">", sizeof(buf));
1886                 printf("%s%d: %s\n", periph->periph_name,
1887                     periph->unit_number, buf);
1888         }
1889
1890         /*
1891          * Since our peripheral may be invalidated by an error
1892          * above or an external event, we must release our CCB
1893          * before releasing the probe lock on the peripheral.
1894          * The peripheral will only go away once the last lock
1895          * is removed, and we need it around for the CCB release
1896          * operation.
1897          */
1898         xpt_release_ccb(ccb);
1899         softc->state = DA_STATE_NORMAL;
1900         daschedule(periph);
1901         wakeup(&softc->disk->d_mediasize);
1902         if ((softc->flags & DA_FLAG_PROBED) == 0) {
1903                 softc->flags |= DA_FLAG_PROBED;
1904                 cam_periph_unhold(periph);
1905         } else
1906                 cam_periph_release_locked(periph);
1907 }
1908
1909 static void
1910 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
1911 {
1912         int i, delete_method;
1913
1914         delete_method = default_method;
1915
1916         /*
1917          * Use the pre-defined order to choose the best
1918          * performing delete.
1919          */
1920         for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1921                 if (softc->delete_available & (1 << i)) {
1922                         dadeletemethodset(softc, i);
1923                         return;
1924                 }
1925         }
1926         dadeletemethodset(softc, delete_method);
1927 }
1928
1929 static int
1930 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
1931 {
1932         char buf[16];
1933         const char *p;
1934         struct da_softc *softc;
1935         int i, error, value;
1936
1937         softc = (struct da_softc *)arg1;
1938
1939         value = softc->delete_method;
1940         if (value < 0 || value > DA_DELETE_MAX)
1941                 p = "UNKNOWN";
1942         else
1943                 p = da_delete_method_names[value];
1944         strncpy(buf, p, sizeof(buf));
1945         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
1946         if (error != 0 || req->newptr == NULL)
1947                 return (error);
1948         for (i = 0; i <= DA_DELETE_MAX; i++) {
1949                 if (!(softc->delete_available & (1 << i)) ||
1950                     strcmp(buf, da_delete_method_names[i]) != 0)
1951                         continue;
1952                 dadeletemethodset(softc, i);
1953                 return (0);
1954         }
1955         return (EINVAL);
1956 }
1957
1958 static cam_status
1959 daregister(struct cam_periph *periph, void *arg)
1960 {
1961         struct da_softc *softc;
1962         struct ccb_pathinq cpi;
1963         struct ccb_getdev *cgd;
1964         char tmpstr[80];
1965         caddr_t match;
1966
1967         cgd = (struct ccb_getdev *)arg;
1968         if (cgd == NULL) {
1969                 printf("daregister: no getdev CCB, can't register device\n");
1970                 return(CAM_REQ_CMP_ERR);
1971         }
1972
1973         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1974             M_NOWAIT|M_ZERO);
1975
1976         if (softc == NULL) {
1977                 printf("daregister: Unable to probe new device. "
1978                        "Unable to allocate softc\n");
1979                 return(CAM_REQ_CMP_ERR);
1980         }
1981
1982         LIST_INIT(&softc->pending_ccbs);
1983         softc->state = DA_STATE_PROBE_RC;
1984         bioq_init(&softc->bio_queue);
1985         bioq_init(&softc->delete_queue);
1986         bioq_init(&softc->delete_run_queue);
1987         if (SID_IS_REMOVABLE(&cgd->inq_data))
1988                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1989         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
1990         softc->unmap_max_lba = UNMAP_RANGE_MAX;
1991         softc->ws_max_blks = WS16_MAX_BLKS;
1992         softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
1993         softc->sort_io_queue = -1;
1994
1995         periph->softc = softc;
1996
1997         /*
1998          * See if this device has any quirks.
1999          */
2000         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2001                                (caddr_t)da_quirk_table,
2002                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2003                                sizeof(*da_quirk_table), scsi_inquiry_match);
2004
2005         if (match != NULL)
2006                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2007         else
2008                 softc->quirks = DA_Q_NONE;
2009
2010         /* Check if the SIM does not want 6 byte commands */
2011         bzero(&cpi, sizeof(cpi));
2012         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2013         cpi.ccb_h.func_code = XPT_PATH_INQ;
2014         xpt_action((union ccb *)&cpi);
2015         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2016                 softc->quirks |= DA_Q_NO_6_BYTE;
2017
2018         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2019
2020         /*
2021          * Take an exclusive refcount on the periph while dastart is called
2022          * to finish the probe.  The reference will be dropped in dadone at
2023          * the end of probe.
2024          */
2025         (void)cam_periph_hold(periph, PRIBIO);
2026
2027         /*
2028          * Schedule a periodic event to occasionally send an
2029          * ordered tag to a device.
2030          */
2031         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
2032         callout_reset(&softc->sendordered_c,
2033             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2034             dasendorderedtag, softc);
2035
2036         cam_periph_unlock(periph);
2037         /*
2038          * RBC devices don't have to support READ(6), only READ(10).
2039          */
2040         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2041                 softc->minimum_cmd_size = 10;
2042         else
2043                 softc->minimum_cmd_size = 6;
2044
2045         /*
2046          * Load the user's default, if any.
2047          */
2048         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2049                  periph->unit_number);
2050         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2051
2052         /*
2053          * 6, 10, 12 and 16 are the currently permissible values.
2054          */
2055         if (softc->minimum_cmd_size < 6)
2056                 softc->minimum_cmd_size = 6;
2057         else if ((softc->minimum_cmd_size > 6)
2058               && (softc->minimum_cmd_size <= 10))
2059                 softc->minimum_cmd_size = 10;
2060         else if ((softc->minimum_cmd_size > 10)
2061               && (softc->minimum_cmd_size <= 12))
2062                 softc->minimum_cmd_size = 12;
2063         else if (softc->minimum_cmd_size > 12)
2064                 softc->minimum_cmd_size = 16;
2065
2066         /* Predict whether device may support READ CAPACITY(16). */
2067         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
2068                 softc->flags |= DA_FLAG_CAN_RC16;
2069                 softc->state = DA_STATE_PROBE_RC16;
2070         }
2071
2072         /*
2073          * Register this media as a disk.
2074          */
2075         softc->disk = disk_alloc();
2076         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2077                           periph->unit_number, 0,
2078                           DEVSTAT_BS_UNAVAILABLE,
2079                           SID_TYPE(&cgd->inq_data) |
2080                           XPORT_DEVSTAT_TYPE(cpi.transport),
2081                           DEVSTAT_PRIORITY_DISK);
2082         softc->disk->d_open = daopen;
2083         softc->disk->d_close = daclose;
2084         softc->disk->d_strategy = dastrategy;
2085         softc->disk->d_dump = dadump;
2086         softc->disk->d_getattr = dagetattr;
2087         softc->disk->d_gone = dadiskgonecb;
2088         softc->disk->d_name = "da";
2089         softc->disk->d_drv1 = periph;
2090         if (cpi.maxio == 0)
2091                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
2092         else if (cpi.maxio > MAXPHYS)
2093                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
2094         else
2095                 softc->disk->d_maxsize = cpi.maxio;
2096         softc->disk->d_unit = periph->unit_number;
2097         softc->disk->d_flags = 0;
2098         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2099                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2100         if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2101                 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2102         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2103             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2104         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2105         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2106             cgd->inq_data.product, sizeof(cgd->inq_data.product),
2107             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2108         softc->disk->d_hba_vendor = cpi.hba_vendor;
2109         softc->disk->d_hba_device = cpi.hba_device;
2110         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2111         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2112
2113         /*
2114          * Acquire a reference to the periph before we register with GEOM.
2115          * We'll release this reference once GEOM calls us back (via
2116          * dadiskgonecb()) telling us that our provider has been freed.
2117          */
2118         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2119                 xpt_print(periph->path, "%s: lost periph during "
2120                           "registration!\n", __func__);
2121                 cam_periph_lock(periph);
2122                 return (CAM_REQ_CMP_ERR);
2123         }
2124
2125         disk_create(softc->disk, DISK_VERSION);
2126         cam_periph_lock(periph);
2127
2128         /*
2129          * Add async callbacks for events of interest.
2130          * I don't bother checking if this fails as,
2131          * in most cases, the system will function just
2132          * fine without them and the only alternative
2133          * would be to not attach the device on failure.
2134          */
2135         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2136             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
2137             daasync, periph, periph->path);
2138
2139         /*
2140          * Emit an attribute changed notification just in case
2141          * physical path information arrived before our async
2142          * event handler was registered, but after anyone attaching
2143          * to our disk device polled it.
2144          */
2145         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2146
2147         /*
2148          * Schedule a periodic media polling events.
2149          */
2150         callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0);
2151         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2152             (cgd->inq_flags & SID_AEN) == 0 &&
2153             da_poll_period != 0)
2154                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2155                     damediapoll, periph);
2156
2157         xpt_schedule(periph, CAM_PRIORITY_DEV);
2158
2159         return(CAM_REQ_CMP);
2160 }
2161
2162 static void
2163 dastart(struct cam_periph *periph, union ccb *start_ccb)
2164 {
2165         struct da_softc *softc;
2166
2167         softc = (struct da_softc *)periph->softc;
2168
2169         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2170
2171 skipstate:
2172         switch (softc->state) {
2173         case DA_STATE_NORMAL:
2174         {
2175                 struct bio *bp, *bp1;
2176                 uint8_t tag_code;
2177
2178                 /* Execute immediate CCB if waiting. */
2179                 if (periph->immediate_priority <= periph->pinfo.priority) {
2180                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2181                                         ("queuing for immediate ccb\n"));
2182                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
2183                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
2184                                           periph_links.sle);
2185                         periph->immediate_priority = CAM_PRIORITY_NONE;
2186                         wakeup(&periph->ccb_list);
2187                         /* May have more work to do, so ensure we stay scheduled */
2188                         daschedule(periph);
2189                         break;
2190                 }
2191
2192                 /* Run BIO_DELETE if not running yet. */
2193                 if (!softc->delete_running &&
2194                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
2195                     uint64_t lba;
2196                     uint64_t count; /* forward compat with WS32 */
2197
2198                     /*
2199                      * In each of the methods below, while its the caller's
2200                      * responsibility to ensure the request will fit into a
2201                      * single device request, we might have changed the delete
2202                      * method due to the device incorrectly advertising either
2203                      * its supported methods or limits.
2204                      *
2205                      * To prevent this causing further issues we validate the
2206                      * against the methods limits, and warn which would
2207                      * otherwise be unnecessary.
2208                      */
2209
2210                     if (softc->delete_method == DA_DELETE_UNMAP) {
2211                         uint8_t *buf = softc->unmap_buf;
2212                         uint64_t lastlba = (uint64_t)-1;
2213                         uint32_t lastcount = 0, c;
2214                         uint64_t totalcount = 0;
2215                         uint32_t off, ranges = 0;
2216
2217                         /*
2218                          * Currently this doesn't take the UNMAP
2219                          * Granularity and Granularity Alignment
2220                          * fields into account.
2221                          *
2222                          * This could result in both unoptimal unmap
2223                          * requests as as well as UNMAP calls unmapping
2224                          * fewer LBA's than requested.
2225                          */
2226
2227                         softc->delete_running = 1;
2228                         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2229                         bp1 = bp;
2230                         do {
2231                                 bioq_remove(&softc->delete_queue, bp1);
2232                                 if (bp1 != bp)
2233                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2234                                 lba = bp1->bio_pblkno;
2235                                 count = bp1->bio_bcount / softc->params.secsize;
2236
2237                                 /* Try to extend the previous range. */
2238                                 if (lba == lastlba) {
2239                                         c = min(count, softc->unmap_max_lba -
2240                                                 lastcount);
2241                                         lastcount += c;
2242                                         off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2243                                               UNMAP_HEAD_SIZE;
2244                                         scsi_ulto4b(lastcount, &buf[off + 8]);
2245                                         count -= c;
2246                                         lba +=c;
2247                                         totalcount += c;
2248                                 }
2249
2250                                 while (count > 0) {
2251                                         c = min(count, softc->unmap_max_lba);
2252                                         if (totalcount + c > softc->unmap_max_lba ||
2253                                             ranges >= softc->unmap_max_ranges) {
2254                                                 xpt_print(periph->path,
2255                                                   "%s issuing short delete %ld > %ld"
2256                                                   "|| %d >= %d",
2257                                                   da_delete_method_desc[softc->delete_method],
2258                                                   totalcount + c, softc->unmap_max_lba,
2259                                                   ranges, softc->unmap_max_ranges);
2260                                                 break;
2261                                         }
2262                                         off = (ranges * UNMAP_RANGE_SIZE) +
2263                                               UNMAP_HEAD_SIZE;
2264                                         scsi_u64to8b(lba, &buf[off + 0]);
2265                                         scsi_ulto4b(c, &buf[off + 8]);
2266                                         lba += c;
2267                                         totalcount += c;
2268                                         ranges++;
2269                                         count -= c;
2270                                         lastcount = c;
2271                                 }
2272                                 lastlba = lba;
2273                                 bp1 = bioq_first(&softc->delete_queue);
2274                                 if (bp1 == NULL ||
2275                                     ranges >= softc->unmap_max_ranges ||
2276                                     totalcount + bp1->bio_bcount /
2277                                      softc->params.secsize > softc->unmap_max_lba)
2278                                         break;
2279                         } while (1);
2280                         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2281                         scsi_ulto2b(ranges * 16, &buf[2]);
2282
2283                         scsi_unmap(&start_ccb->csio,
2284                                         /*retries*/da_retry_count,
2285                                         /*cbfcnp*/dadone,
2286                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
2287                                         /*byte2*/0,
2288                                         /*data_ptr*/ buf,
2289                                         /*dxfer_len*/ ranges * 16 + 8,
2290                                         /*sense_len*/SSD_FULL_SIZE,
2291                                         da_default_timeout * 1000);
2292                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2293                         goto out;
2294                     } else if (softc->delete_method == DA_DELETE_ATA_TRIM) {
2295                                 uint8_t *buf = softc->unmap_buf;
2296                                 uint64_t lastlba = (uint64_t)-1;
2297                                 uint32_t lastcount = 0, c, requestcount;
2298                                 int ranges = 0, off, block_count;
2299
2300                                 softc->delete_running = 1;
2301                                 bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2302                                 bp1 = bp;
2303                                 do {
2304                                         bioq_remove(&softc->delete_queue, bp1);
2305                                         if (bp1 != bp)
2306                                                 bioq_insert_tail(&softc->delete_run_queue, bp1);
2307                                         lba = bp1->bio_pblkno;
2308                                         count = bp1->bio_bcount / softc->params.secsize;
2309                                         requestcount = count;
2310
2311                                         /* Try to extend the previous range. */
2312                                         if (lba == lastlba) {
2313                                                 c = min(count, ATA_DSM_RANGE_MAX - lastcount);
2314                                                 lastcount += c;
2315                                                 off = (ranges - 1) * 8;
2316                                                 buf[off + 6] = lastcount & 0xff;
2317                                                 buf[off + 7] = (lastcount >> 8) & 0xff;
2318                                                 count -= c;
2319                                                 lba += c;
2320                                         }
2321
2322                                         while (count > 0) {
2323                                                 c = min(count, ATA_DSM_RANGE_MAX);
2324                                                 off = ranges * 8;
2325
2326                                                 buf[off + 0] = lba & 0xff;
2327                                                 buf[off + 1] = (lba >> 8) & 0xff;
2328                                                 buf[off + 2] = (lba >> 16) & 0xff;
2329                                                 buf[off + 3] = (lba >> 24) & 0xff;
2330                                                 buf[off + 4] = (lba >> 32) & 0xff;
2331                                                 buf[off + 5] = (lba >> 40) & 0xff;
2332                                                 buf[off + 6] = c & 0xff;
2333                                                 buf[off + 7] = (c >> 8) & 0xff;
2334                                                 lba += c;
2335                                                 ranges++;
2336                                                 count -= c;
2337                                                 lastcount = c;
2338                                                 if (count != 0 && ranges == softc->trim_max_ranges) {
2339                                                         xpt_print(periph->path,
2340                                                           "%s issuing short delete %ld > %ld",
2341                                                           da_delete_method_desc[softc->delete_method],
2342                                                           requestcount,
2343                                                           (softc->trim_max_ranges - ranges) *
2344                                                           ATA_DSM_RANGE_MAX);
2345                                                         break;
2346                                                 }
2347                                         }
2348                                         lastlba = lba;
2349                                         bp1 = bioq_first(&softc->delete_queue);
2350                                         if (bp1 == NULL ||
2351                                             bp1->bio_bcount / softc->params.secsize >
2352                                             (softc->trim_max_ranges - ranges) *
2353                                                     ATA_DSM_RANGE_MAX)
2354                                                 break;
2355                                 } while (1);
2356
2357                                 block_count = (ranges + ATA_DSM_BLK_RANGES - 1) /
2358                                               ATA_DSM_BLK_RANGES;
2359                                 scsi_ata_trim(&start_ccb->csio,
2360                                                 /*retries*/da_retry_count,
2361                                                 /*cbfcnp*/dadone,
2362                                                 /*tag_action*/MSG_SIMPLE_Q_TAG,
2363                                                 block_count,
2364                                                 /*data_ptr*/buf,
2365                                                 /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2366                                                 /*sense_len*/SSD_FULL_SIZE,
2367                                                 da_default_timeout * 1000);
2368                                 start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2369                                 goto out;
2370                     } else if (softc->delete_method == DA_DELETE_ZERO ||
2371                                softc->delete_method == DA_DELETE_WS10 ||
2372                                softc->delete_method == DA_DELETE_WS16) {
2373                         /*
2374                          * We calculate ws_max_blks here based off d_delmaxsize instead
2375                          * of using softc->ws_max_blks as it is absolute max for the
2376                          * device not the protocol max which may well be lower
2377                          */
2378                         uint64_t ws_max_blks;
2379                         ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2380                         softc->delete_running = 1;
2381                         lba = bp->bio_pblkno;
2382                         count = 0;
2383                         bp1 = bp;
2384                         do {
2385                                 bioq_remove(&softc->delete_queue, bp1);
2386                                 if (bp1 != bp)
2387                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2388                                 count += bp1->bio_bcount / softc->params.secsize;
2389                                 if (count > ws_max_blks) {
2390                                         count = min(count, ws_max_blks);
2391                                         xpt_print(periph->path,
2392                                           "%s issuing short delete %ld > %ld",
2393                                           da_delete_method_desc[softc->delete_method],
2394                                           count, ws_max_blks);
2395                                         break;
2396                                 }
2397                                 bp1 = bioq_first(&softc->delete_queue);
2398                                 if (bp1 == NULL ||
2399                                     lba + count != bp1->bio_pblkno ||
2400                                     count + bp1->bio_bcount /
2401                                      softc->params.secsize > ws_max_blks)
2402                                         break;
2403                         } while (1);
2404
2405                         scsi_write_same(&start_ccb->csio,
2406                                         /*retries*/da_retry_count,
2407                                         /*cbfcnp*/dadone,
2408                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
2409                                         /*byte2*/softc->delete_method ==
2410                                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2411                                         softc->delete_method ==
2412                                             DA_DELETE_WS16 ? 16 : 10,
2413                                         /*lba*/lba,
2414                                         /*block_count*/count,
2415                                         /*data_ptr*/ __DECONST(void *,
2416                                             zero_region),
2417                                         /*dxfer_len*/ softc->params.secsize,
2418                                         /*sense_len*/SSD_FULL_SIZE,
2419                                         da_default_timeout * 1000);
2420                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2421                         goto out;
2422                     } else {
2423                         bioq_flush(&softc->delete_queue, NULL, 0);
2424                         /* FALLTHROUGH */
2425                     }
2426                 }
2427
2428                 /* Run regular command. */
2429                 bp = bioq_takefirst(&softc->bio_queue);
2430                 if (bp == NULL) {
2431                         if (softc->tur) {
2432                                 softc->tur = 0;
2433                                 scsi_test_unit_ready(&start_ccb->csio,
2434                                      /*retries*/ da_retry_count,
2435                                      dadone,
2436                                      MSG_SIMPLE_Q_TAG,
2437                                      SSD_FULL_SIZE,
2438                                      da_default_timeout * 1000);
2439                                 start_ccb->ccb_h.ccb_bp = NULL;
2440                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2441                                 xpt_action(start_ccb);
2442                         } else
2443                                 xpt_release_ccb(start_ccb);
2444                         break;
2445                 }
2446                 if (softc->tur) {
2447                         softc->tur = 0;
2448                         cam_periph_release_locked(periph);
2449                 }
2450
2451                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2452                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2453                         softc->flags &= ~DA_FLAG_NEED_OTAG;
2454                         softc->ordered_tag_count++;
2455                         tag_code = MSG_ORDERED_Q_TAG;
2456                 } else {
2457                         tag_code = MSG_SIMPLE_Q_TAG;
2458                 }
2459
2460                 switch (bp->bio_cmd) {
2461                 case BIO_READ:
2462                 case BIO_WRITE:
2463                         scsi_read_write(&start_ccb->csio,
2464                                         /*retries*/da_retry_count,
2465                                         /*cbfcnp*/dadone,
2466                                         /*tag_action*/tag_code,
2467                                         /*read_op*/(bp->bio_cmd == BIO_READ ?
2468                                         SCSI_RW_READ : SCSI_RW_WRITE) |
2469                                         ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
2470                                         SCSI_RW_BIO : 0),
2471                                         /*byte2*/0,
2472                                         softc->minimum_cmd_size,
2473                                         /*lba*/bp->bio_pblkno,
2474                                         /*block_count*/bp->bio_bcount /
2475                                         softc->params.secsize,
2476                                         /*data_ptr*/ (bp->bio_flags &
2477                                         BIO_UNMAPPED) != 0 ? (void *)bp :
2478                                         bp->bio_data,
2479                                         /*dxfer_len*/ bp->bio_bcount,
2480                                         /*sense_len*/SSD_FULL_SIZE,
2481                                         da_default_timeout * 1000);
2482                         break;
2483                 case BIO_FLUSH:
2484                         /*
2485                          * BIO_FLUSH doesn't currently communicate
2486                          * range data, so we synchronize the cache
2487                          * over the whole disk.  We also force
2488                          * ordered tag semantics the flush applies
2489                          * to all previously queued I/O.
2490                          */
2491                         scsi_synchronize_cache(&start_ccb->csio,
2492                                                /*retries*/1,
2493                                                /*cbfcnp*/dadone,
2494                                                MSG_ORDERED_Q_TAG,
2495                                                /*begin_lba*/0,
2496                                                /*lb_count*/0,
2497                                                SSD_FULL_SIZE,
2498                                                da_default_timeout*1000);
2499                         break;
2500                 }
2501                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2502
2503 out:
2504                 /*
2505                  * Block out any asyncronous callbacks
2506                  * while we touch the pending ccb list.
2507                  */
2508                 LIST_INSERT_HEAD(&softc->pending_ccbs,
2509                                  &start_ccb->ccb_h, periph_links.le);
2510                 softc->outstanding_cmds++;
2511
2512                 /* We expect a unit attention from this device */
2513                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2514                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2515                         softc->flags &= ~DA_FLAG_RETRY_UA;
2516                 }
2517
2518                 start_ccb->ccb_h.ccb_bp = bp;
2519                 xpt_action(start_ccb);
2520
2521                 /* May have more work to do, so ensure we stay scheduled */
2522                 daschedule(periph);
2523                 break;
2524         }
2525         case DA_STATE_PROBE_RC:
2526         {
2527                 struct scsi_read_capacity_data *rcap;
2528
2529                 rcap = (struct scsi_read_capacity_data *)
2530                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2531                 if (rcap == NULL) {
2532                         printf("dastart: Couldn't malloc read_capacity data\n");
2533                         /* da_free_periph??? */
2534                         break;
2535                 }
2536                 scsi_read_capacity(&start_ccb->csio,
2537                                    /*retries*/da_retry_count,
2538                                    dadone,
2539                                    MSG_SIMPLE_Q_TAG,
2540                                    rcap,
2541                                    SSD_FULL_SIZE,
2542                                    /*timeout*/5000);
2543                 start_ccb->ccb_h.ccb_bp = NULL;
2544                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2545                 xpt_action(start_ccb);
2546                 break;
2547         }
2548         case DA_STATE_PROBE_RC16:
2549         {
2550                 struct scsi_read_capacity_data_long *rcaplong;
2551
2552                 rcaplong = (struct scsi_read_capacity_data_long *)
2553                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2554                 if (rcaplong == NULL) {
2555                         printf("dastart: Couldn't malloc read_capacity data\n");
2556                         /* da_free_periph??? */
2557                         break;
2558                 }
2559                 scsi_read_capacity_16(&start_ccb->csio,
2560                                       /*retries*/ da_retry_count,
2561                                       /*cbfcnp*/ dadone,
2562                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
2563                                       /*lba*/ 0,
2564                                       /*reladr*/ 0,
2565                                       /*pmi*/ 0,
2566                                       rcaplong,
2567                                       /*sense_len*/ SSD_FULL_SIZE,
2568                                       /*timeout*/ da_default_timeout * 1000);
2569                 start_ccb->ccb_h.ccb_bp = NULL;
2570                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2571                 xpt_action(start_ccb);
2572                 break;
2573         }
2574         case DA_STATE_PROBE_LBP:
2575         {
2576                 struct scsi_vpd_logical_block_prov *lbp;
2577
2578                 if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2579                         /*
2580                          * If we get here we don't support any SBC-3 delete
2581                          * methods with UNMAP as the Logical Block Provisioning
2582                          * VPD page support is required for devices which
2583                          * support it according to T10/1799-D Revision 31
2584                          * however older revisions of the spec don't mandate
2585                          * this so we currently don't remove these methods
2586                          * from the available set.
2587                          */
2588                         softc->state = DA_STATE_PROBE_BLK_LIMITS;
2589                         goto skipstate;
2590                 }
2591
2592                 lbp = (struct scsi_vpd_logical_block_prov *)
2593                         malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2594
2595                 if (lbp == NULL) {
2596                         printf("dastart: Couldn't malloc lbp data\n");
2597                         /* da_free_periph??? */
2598                         break;
2599                 }
2600
2601                 scsi_inquiry(&start_ccb->csio,
2602                              /*retries*/da_retry_count,
2603                              /*cbfcnp*/dadone,
2604                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2605                              /*inq_buf*/(u_int8_t *)lbp,
2606                              /*inq_len*/sizeof(*lbp),
2607                              /*evpd*/TRUE,
2608                              /*page_code*/SVPD_LBP,
2609                              /*sense_len*/SSD_MIN_SIZE,
2610                              /*timeout*/da_default_timeout * 1000);
2611                 start_ccb->ccb_h.ccb_bp = NULL;
2612                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2613                 xpt_action(start_ccb);
2614                 break;
2615         }
2616         case DA_STATE_PROBE_BLK_LIMITS:
2617         {
2618                 struct scsi_vpd_block_limits *block_limits;
2619
2620                 if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2621                         /* Not supported skip to next probe */
2622                         softc->state = DA_STATE_PROBE_BDC;
2623                         goto skipstate;
2624                 }
2625
2626                 block_limits = (struct scsi_vpd_block_limits *)
2627                         malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2628
2629                 if (block_limits == NULL) {
2630                         printf("dastart: Couldn't malloc block_limits data\n");
2631                         /* da_free_periph??? */
2632                         break;
2633                 }
2634
2635                 scsi_inquiry(&start_ccb->csio,
2636                              /*retries*/da_retry_count,
2637                              /*cbfcnp*/dadone,
2638                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2639                              /*inq_buf*/(u_int8_t *)block_limits,
2640                              /*inq_len*/sizeof(*block_limits),
2641                              /*evpd*/TRUE,
2642                              /*page_code*/SVPD_BLOCK_LIMITS,
2643                              /*sense_len*/SSD_MIN_SIZE,
2644                              /*timeout*/da_default_timeout * 1000);
2645                 start_ccb->ccb_h.ccb_bp = NULL;
2646                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2647                 xpt_action(start_ccb);
2648                 break;
2649         }
2650         case DA_STATE_PROBE_BDC:
2651         {
2652                 struct scsi_vpd_block_characteristics *bdc;
2653
2654                 if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2655                         softc->state = DA_STATE_PROBE_ATA;
2656                         goto skipstate;
2657                 }
2658
2659                 bdc = (struct scsi_vpd_block_characteristics *)
2660                         malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2661
2662                 if (bdc == NULL) {
2663                         printf("dastart: Couldn't malloc bdc data\n");
2664                         /* da_free_periph??? */
2665                         break;
2666                 }
2667
2668                 scsi_inquiry(&start_ccb->csio,
2669                              /*retries*/da_retry_count,
2670                              /*cbfcnp*/dadone,
2671                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2672                              /*inq_buf*/(u_int8_t *)bdc,
2673                              /*inq_len*/sizeof(*bdc),
2674                              /*evpd*/TRUE,
2675                              /*page_code*/SVPD_BDC,
2676                              /*sense_len*/SSD_MIN_SIZE,
2677                              /*timeout*/da_default_timeout * 1000);
2678                 start_ccb->ccb_h.ccb_bp = NULL;
2679                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2680                 xpt_action(start_ccb);
2681                 break;
2682         }
2683         case DA_STATE_PROBE_ATA:
2684         {
2685                 struct ata_params *ata_params;
2686
2687                 if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2688                         daprobedone(periph, start_ccb);
2689                         break;
2690                 }
2691
2692                 ata_params = (struct ata_params*)
2693                         malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2694
2695                 if (ata_params == NULL) {
2696                         printf("dastart: Couldn't malloc ata_params data\n");
2697                         /* da_free_periph??? */
2698                         break;
2699                 }
2700
2701                 scsi_ata_identify(&start_ccb->csio,
2702                                   /*retries*/da_retry_count,
2703                                   /*cbfcnp*/dadone,
2704                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
2705                                   /*data_ptr*/(u_int8_t *)ata_params,
2706                                   /*dxfer_len*/sizeof(*ata_params),
2707                                   /*sense_len*/SSD_FULL_SIZE,
2708                                   /*timeout*/da_default_timeout * 1000);
2709                 start_ccb->ccb_h.ccb_bp = NULL;
2710                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2711                 xpt_action(start_ccb);
2712                 break;
2713         }
2714         }
2715 }
2716
2717 static int
2718 cmd6workaround(union ccb *ccb)
2719 {
2720         struct scsi_rw_6 cmd6;
2721         struct scsi_rw_10 *cmd10;
2722         struct da_softc *softc;
2723         u_int8_t *cdb;
2724         struct bio *bp;
2725         int frozen;
2726
2727         cdb = ccb->csio.cdb_io.cdb_bytes;
2728         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2729
2730         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2731                 da_delete_methods old_method = softc->delete_method;
2732
2733                 /*
2734                  * Typically there are two reasons for failure here
2735                  * 1. Delete method was detected as supported but isn't
2736                  * 2. Delete failed due to invalid params e.g. too big
2737                  *
2738                  * While we will attempt to choose an alternative delete method
2739                  * this may result in short deletes if the existing delete
2740                  * requests from geom are big for the new method choosen.
2741                  *
2742                  * This method assumes that the error which triggered this
2743                  * will not retry the io otherwise a panic will occur
2744                  */
2745                 dadeleteflag(softc, old_method, 0);
2746                 dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2747                 if (softc->delete_method == DA_DELETE_DISABLE)
2748                         xpt_print(ccb->ccb_h.path,
2749                                   "%s failed, disabling BIO_DELETE\n",
2750                                   da_delete_method_desc[old_method]);
2751                 else
2752                         xpt_print(ccb->ccb_h.path,
2753                                   "%s failed, switching to %s BIO_DELETE\n",
2754                                   da_delete_method_desc[old_method],
2755                                   da_delete_method_desc[softc->delete_method]);
2756
2757                 if (DA_SIO) {
2758                         while ((bp = bioq_takefirst(&softc->delete_run_queue))
2759                             != NULL)
2760                                 bioq_disksort(&softc->delete_queue, bp);
2761                 } else {
2762                         while ((bp = bioq_takefirst(&softc->delete_run_queue))
2763                             != NULL)
2764                                 bioq_insert_tail(&softc->delete_queue, bp);
2765                 }
2766                 bioq_insert_tail(&softc->delete_queue,
2767                     (struct bio *)ccb->ccb_h.ccb_bp);
2768                 ccb->ccb_h.ccb_bp = NULL;
2769                 return (0);
2770         }
2771
2772         /* Translation only possible if CDB is an array and cmd is R/W6 */
2773         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2774             (*cdb != READ_6 && *cdb != WRITE_6))
2775                 return 0;
2776
2777         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2778             "increasing minimum_cmd_size to 10.\n");
2779         softc->minimum_cmd_size = 10;
2780
2781         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2782         cmd10 = (struct scsi_rw_10 *)cdb;
2783         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2784         cmd10->byte2 = 0;
2785         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2786         cmd10->reserved = 0;
2787         scsi_ulto2b(cmd6.length, cmd10->length);
2788         cmd10->control = cmd6.control;
2789         ccb->csio.cdb_len = sizeof(*cmd10);
2790
2791         /* Requeue request, unfreezing queue if necessary */
2792         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2793         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2794         xpt_action(ccb);
2795         if (frozen) {
2796                 cam_release_devq(ccb->ccb_h.path,
2797                                  /*relsim_flags*/0,
2798                                  /*reduction*/0,
2799                                  /*timeout*/0,
2800                                  /*getcount_only*/0);
2801         }
2802         return (ERESTART);
2803 }
2804
2805 static void
2806 dadone(struct cam_periph *periph, union ccb *done_ccb)
2807 {
2808         struct da_softc *softc;
2809         struct ccb_scsiio *csio;
2810         u_int32_t  priority;
2811         da_ccb_state state;
2812
2813         softc = (struct da_softc *)periph->softc;
2814         priority = done_ccb->ccb_h.pinfo.priority;
2815
2816         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2817
2818         csio = &done_ccb->csio;
2819         state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2820         switch (state) {
2821         case DA_CCB_BUFFER_IO:
2822         case DA_CCB_DELETE:
2823         {
2824                 struct bio *bp, *bp1;
2825
2826                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2827                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2828                         int error;
2829                         int sf;
2830
2831                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2832                                 sf = SF_RETRY_UA;
2833                         else
2834                                 sf = 0;
2835
2836                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2837                         if (error == ERESTART) {
2838                                 /*
2839                                  * A retry was scheduled, so
2840                                  * just return.
2841                                  */
2842                                 return;
2843                         }
2844                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2845                         if (error != 0) {
2846                                 int queued_error;
2847
2848                                 /*
2849                                  * return all queued I/O with EIO, so that
2850                                  * the client can retry these I/Os in the
2851                                  * proper order should it attempt to recover.
2852                                  */
2853                                 queued_error = EIO;
2854
2855                                 if (error == ENXIO
2856                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2857                                         /*
2858                                          * Catastrophic error.  Mark our pack as
2859                                          * invalid.
2860                                          */
2861                                         /*
2862                                          * XXX See if this is really a media
2863                                          * XXX change first?
2864                                          */
2865                                         xpt_print(periph->path,
2866                                             "Invalidating pack\n");
2867                                         softc->flags |= DA_FLAG_PACK_INVALID;
2868                                         queued_error = ENXIO;
2869                                 }
2870                                 bioq_flush(&softc->bio_queue, NULL,
2871                                            queued_error);
2872                                 if (bp != NULL) {
2873                                         bp->bio_error = error;
2874                                         bp->bio_resid = bp->bio_bcount;
2875                                         bp->bio_flags |= BIO_ERROR;
2876                                 }
2877                         } else if (bp != NULL) {
2878                                 bp->bio_resid = csio->resid;
2879                                 bp->bio_error = 0;
2880                                 if (bp->bio_resid != 0)
2881                                         bp->bio_flags |= BIO_ERROR;
2882                         }
2883                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2884                                 cam_release_devq(done_ccb->ccb_h.path,
2885                                                  /*relsim_flags*/0,
2886                                                  /*reduction*/0,
2887                                                  /*timeout*/0,
2888                                                  /*getcount_only*/0);
2889                 } else if (bp != NULL) {
2890                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2891                                 panic("REQ_CMP with QFRZN");
2892                         bp->bio_resid = csio->resid;
2893                         if (csio->resid > 0)
2894                                 bp->bio_flags |= BIO_ERROR;
2895                         if (softc->error_inject != 0) {
2896                                 bp->bio_error = softc->error_inject;
2897                                 bp->bio_resid = bp->bio_bcount;
2898                                 bp->bio_flags |= BIO_ERROR;
2899                                 softc->error_inject = 0;
2900                         }
2901
2902                 }
2903
2904                 /*
2905                  * Block out any asyncronous callbacks
2906                  * while we touch the pending ccb list.
2907                  */
2908                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
2909                 softc->outstanding_cmds--;
2910                 if (softc->outstanding_cmds == 0)
2911                         softc->flags |= DA_FLAG_WENT_IDLE;
2912
2913                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
2914                         xpt_print(periph->path, "oustanding %d\n",
2915                                   softc->outstanding_cmds);
2916                 }
2917
2918                 if (state == DA_CCB_DELETE) {
2919                         while ((bp1 = bioq_takefirst(&softc->delete_run_queue))
2920                             != NULL) {
2921                                 bp1->bio_resid = bp->bio_resid;
2922                                 bp1->bio_error = bp->bio_error;
2923                                 if (bp->bio_flags & BIO_ERROR)
2924                                         bp1->bio_flags |= BIO_ERROR;
2925                                 biodone(bp1);
2926                         }
2927                         softc->delete_running = 0;
2928                         if (bp != NULL)
2929                                 biodone(bp);
2930                         daschedule(periph);
2931                 } else if (bp != NULL)
2932                         biodone(bp);
2933                 break;
2934         }
2935         case DA_CCB_PROBE_RC:
2936         case DA_CCB_PROBE_RC16:
2937         {
2938                 struct     scsi_read_capacity_data *rdcap;
2939                 struct     scsi_read_capacity_data_long *rcaplong;
2940                 char       announce_buf[80];
2941                 int        lbp;
2942
2943                 lbp = 0;
2944                 rdcap = NULL;
2945                 rcaplong = NULL;
2946                 if (state == DA_CCB_PROBE_RC)
2947                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
2948                 else
2949                         rcaplong = (struct scsi_read_capacity_data_long *)
2950                                 csio->data_ptr;
2951
2952                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
2953                         struct disk_params *dp;
2954                         uint32_t block_size;
2955                         uint64_t maxsector;
2956                         u_int lbppbe;   /* LB per physical block exponent. */
2957                         u_int lalba;    /* Lowest aligned LBA. */
2958
2959                         if (state == DA_CCB_PROBE_RC) {
2960                                 block_size = scsi_4btoul(rdcap->length);
2961                                 maxsector = scsi_4btoul(rdcap->addr);
2962                                 lbppbe = 0;
2963                                 lalba = 0;
2964
2965                                 /*
2966                                  * According to SBC-2, if the standard 10
2967                                  * byte READ CAPACITY command returns 2^32,
2968                                  * we should issue the 16 byte version of
2969                                  * the command, since the device in question
2970                                  * has more sectors than can be represented
2971                                  * with the short version of the command.
2972                                  */
2973                                 if (maxsector == 0xffffffff) {
2974                                         free(rdcap, M_SCSIDA);
2975                                         xpt_release_ccb(done_ccb);
2976                                         softc->state = DA_STATE_PROBE_RC16;
2977                                         xpt_schedule(periph, priority);
2978                                         return;
2979                                 }
2980                         } else {
2981                                 block_size = scsi_4btoul(rcaplong->length);
2982                                 maxsector = scsi_8btou64(rcaplong->addr);
2983                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2984                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2985                         }
2986
2987                         /*
2988                          * Because GEOM code just will panic us if we
2989                          * give them an 'illegal' value we'll avoid that
2990                          * here.
2991                          */
2992                         if (block_size == 0 && maxsector == 0) {
2993                                 snprintf(announce_buf, sizeof(announce_buf),
2994                                         "0MB (no media?)");
2995                         } else if (block_size >= MAXPHYS || block_size == 0) {
2996                                 xpt_print(periph->path,
2997                                     "unsupportable block size %ju\n",
2998                                     (uintmax_t) block_size);
2999                                 announce_buf[0] = '\0';
3000                                 cam_periph_invalidate(periph);
3001                         } else {
3002                                 /*
3003                                  * We pass rcaplong into dasetgeom(),
3004                                  * because it will only use it if it is
3005                                  * non-NULL.
3006                                  */
3007                                 dasetgeom(periph, block_size, maxsector,
3008                                           rcaplong, sizeof(*rcaplong));
3009                                 lbp = (lalba & SRC16_LBPME_A);
3010                                 dp = &softc->params;
3011                                 snprintf(announce_buf, sizeof(announce_buf),
3012                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
3013                                         "%dC)", (uintmax_t)
3014                                         (((uintmax_t)dp->secsize *
3015                                         dp->sectors) / (1024*1024)),
3016                                         (uintmax_t)dp->sectors,
3017                                         dp->secsize, dp->heads,
3018                                         dp->secs_per_track, dp->cylinders);
3019                         }
3020                 } else {
3021                         int     error;
3022
3023                         announce_buf[0] = '\0';
3024
3025                         /*
3026                          * Retry any UNIT ATTENTION type errors.  They
3027                          * are expected at boot.
3028                          */
3029                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3030                                         SF_RETRY_UA|SF_NO_PRINT);
3031                         if (error == ERESTART) {
3032                                 /*
3033                                  * A retry was scheuled, so
3034                                  * just return.
3035                                  */
3036                                 return;
3037                         } else if (error != 0) {
3038                                 int asc, ascq;
3039                                 int sense_key, error_code;
3040                                 int have_sense;
3041                                 cam_status status;
3042                                 struct ccb_getdev cgd;
3043
3044                                 /* Don't wedge this device's queue */
3045                                 status = done_ccb->ccb_h.status;
3046                                 if ((status & CAM_DEV_QFRZN) != 0)
3047                                         cam_release_devq(done_ccb->ccb_h.path,
3048                                                          /*relsim_flags*/0,
3049                                                          /*reduction*/0,
3050                                                          /*timeout*/0,
3051                                                          /*getcount_only*/0);
3052
3053
3054                                 xpt_setup_ccb(&cgd.ccb_h,
3055                                               done_ccb->ccb_h.path,
3056                                               CAM_PRIORITY_NORMAL);
3057                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3058                                 xpt_action((union ccb *)&cgd);
3059
3060                                 if (scsi_extract_sense_ccb(done_ccb,
3061                                     &error_code, &sense_key, &asc, &ascq))
3062                                         have_sense = TRUE;
3063                                 else
3064                                         have_sense = FALSE;
3065
3066                                 /*
3067                                  * If we tried READ CAPACITY(16) and failed,
3068                                  * fallback to READ CAPACITY(10).
3069                                  */
3070                                 if ((state == DA_CCB_PROBE_RC16) &&
3071                                     (softc->flags & DA_FLAG_CAN_RC16) &&
3072                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3073                                         CAM_REQ_INVALID) ||
3074                                      ((have_sense) &&
3075                                       (error_code == SSD_CURRENT_ERROR) &&
3076                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3077                                         softc->flags &= ~DA_FLAG_CAN_RC16;
3078                                         free(rdcap, M_SCSIDA);
3079                                         xpt_release_ccb(done_ccb);
3080                                         softc->state = DA_STATE_PROBE_RC;
3081                                         xpt_schedule(periph, priority);
3082                                         return;
3083                                 } else
3084                                 /*
3085                                  * Attach to anything that claims to be a
3086                                  * direct access or optical disk device,
3087                                  * as long as it doesn't return a "Logical
3088                                  * unit not supported" (0x25) error.
3089                                  */
3090                                 if ((have_sense) && (asc != 0x25)
3091                                  && (error_code == SSD_CURRENT_ERROR)) {
3092                                         const char *sense_key_desc;
3093                                         const char *asc_desc;
3094
3095                                         scsi_sense_desc(sense_key, asc, ascq,
3096                                                         &cgd.inq_data,
3097                                                         &sense_key_desc,
3098                                                         &asc_desc);
3099                                         snprintf(announce_buf,
3100                                             sizeof(announce_buf),
3101                                                 "Attempt to query device "
3102                                                 "size failed: %s, %s",
3103                                                 sense_key_desc,
3104                                                 asc_desc);
3105                                 } else {
3106                                         if (have_sense)
3107                                                 scsi_sense_print(
3108                                                         &done_ccb->csio);
3109                                         else {
3110                                                 xpt_print(periph->path,
3111                                                     "got CAM status %#x\n",
3112                                                     done_ccb->ccb_h.status);
3113                                         }
3114
3115                                         xpt_print(periph->path, "fatal error, "
3116                                             "failed to attach to device\n");
3117
3118                                         /*
3119                                          * Free up resources.
3120                                          */
3121                                         cam_periph_invalidate(periph);
3122                                 }
3123                         }
3124                 }
3125                 free(csio->data_ptr, M_SCSIDA);
3126                 if (announce_buf[0] != '\0' && ((softc->flags & DA_FLAG_PROBED) == 0)) {
3127                         /*
3128                          * Create our sysctl variables, now that we know
3129                          * we have successfully attached.
3130                          */
3131                         /* increase the refcount */
3132                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3133                                 taskqueue_enqueue(taskqueue_thread,
3134                                                   &softc->sysctl_task);
3135                                 xpt_announce_periph(periph, announce_buf);
3136                                 xpt_announce_quirks(periph, softc->quirks,
3137                                     DA_Q_BIT_STRING);
3138                         } else {
3139                                 xpt_print(periph->path, "fatal error, "
3140                                     "could not acquire reference count\n");
3141                         }
3142                 }
3143
3144                 /* Ensure re-probe doesn't see old delete. */
3145                 softc->delete_available = 0;
3146                 if (lbp) {
3147                         /*
3148                          * Based on older SBC-3 spec revisions
3149                          * any of the UNMAP methods "may" be
3150                          * available via LBP given this flag so
3151                          * we flag all of them as availble and
3152                          * then remove those which further
3153                          * probes confirm aren't available
3154                          * later.
3155                          *
3156                          * We could also check readcap(16) p_type
3157                          * flag to exclude one or more invalid
3158                          * write same (X) types here
3159                          */
3160                         dadeleteflag(softc, DA_DELETE_WS16, 1);
3161                         dadeleteflag(softc, DA_DELETE_WS10, 1);
3162                         dadeleteflag(softc, DA_DELETE_ZERO, 1);
3163                         dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3164
3165                         xpt_release_ccb(done_ccb);
3166                         softc->state = DA_STATE_PROBE_LBP;
3167                         xpt_schedule(periph, priority);
3168                         return;
3169                 }
3170
3171                 xpt_release_ccb(done_ccb);
3172                 softc->state = DA_STATE_PROBE_BDC;
3173                 xpt_schedule(periph, priority);
3174                 return;
3175         }
3176         case DA_CCB_PROBE_LBP:
3177         {
3178                 struct scsi_vpd_logical_block_prov *lbp;
3179
3180                 lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3181
3182                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3183                         /*
3184                          * T10/1799-D Revision 31 states at least one of these
3185                          * must be supported but we don't currently enforce this.
3186                          */
3187                         dadeleteflag(softc, DA_DELETE_WS16,
3188                                      (lbp->flags & SVPD_LBP_WS16));
3189                         dadeleteflag(softc, DA_DELETE_WS10,
3190                                      (lbp->flags & SVPD_LBP_WS10));
3191                         dadeleteflag(softc, DA_DELETE_ZERO,
3192                                      (lbp->flags & SVPD_LBP_WS10));
3193                         dadeleteflag(softc, DA_DELETE_UNMAP,
3194                                      (lbp->flags & SVPD_LBP_UNMAP));
3195
3196                         if (lbp->flags & SVPD_LBP_UNMAP) {
3197                                 free(lbp, M_SCSIDA);
3198                                 xpt_release_ccb(done_ccb);
3199                                 softc->state = DA_STATE_PROBE_BLK_LIMITS;
3200                                 xpt_schedule(periph, priority);
3201                                 return;
3202                         }
3203                 } else {
3204                         int error;
3205                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3206                                         SF_RETRY_UA|SF_NO_PRINT);
3207                         if (error == ERESTART)
3208                                 return;
3209                         else if (error != 0) {
3210                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3211                                         /* Don't wedge this device's queue */
3212                                         cam_release_devq(done_ccb->ccb_h.path,
3213                                                          /*relsim_flags*/0,
3214                                                          /*reduction*/0,
3215                                                          /*timeout*/0,
3216                                                          /*getcount_only*/0);
3217                                 }
3218
3219                                 /*
3220                                  * Failure indicates we don't support any SBC-3
3221                                  * delete methods with UNMAP
3222                                  */
3223                         }
3224                 }
3225
3226                 free(lbp, M_SCSIDA);
3227                 xpt_release_ccb(done_ccb);
3228                 softc->state = DA_STATE_PROBE_BDC;
3229                 xpt_schedule(periph, priority);
3230                 return;
3231         }
3232         case DA_CCB_PROBE_BLK_LIMITS:
3233         {
3234                 struct scsi_vpd_block_limits *block_limits;
3235
3236                 block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3237
3238                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3239                         uint32_t max_unmap_lba_cnt = scsi_4btoul(
3240                                 block_limits->max_unmap_lba_cnt);
3241                         uint32_t max_unmap_blk_cnt = scsi_4btoul(
3242                                 block_limits->max_unmap_blk_cnt);
3243                         uint64_t ws_max_blks = scsi_8btou64(
3244                                 block_limits->max_write_same_length);
3245                         /*
3246                          * We should already support UNMAP but we check lba
3247                          * and block count to be sure
3248                          */
3249                         if (max_unmap_lba_cnt != 0x00L &&
3250                             max_unmap_blk_cnt != 0x00L) {
3251                                 softc->unmap_max_lba = max_unmap_lba_cnt;
3252                                 softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3253                                         UNMAP_MAX_RANGES);
3254                         } else {
3255                                 /*
3256                                  * Unexpected UNMAP limits which means the
3257                                  * device doesn't actually support UNMAP
3258                                  */
3259                                 dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3260                         }
3261
3262                         if (ws_max_blks != 0x00L)
3263                                 softc->ws_max_blks = ws_max_blks;
3264                 } else {
3265                         int error;
3266                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3267                                         SF_RETRY_UA|SF_NO_PRINT);
3268                         if (error == ERESTART)
3269                                 return;
3270                         else if (error != 0) {
3271                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3272                                         /* Don't wedge this device's queue */
3273                                         cam_release_devq(done_ccb->ccb_h.path,
3274                                                          /*relsim_flags*/0,
3275                                                          /*reduction*/0,
3276                                                          /*timeout*/0,
3277                                                          /*getcount_only*/0);
3278                                 }
3279
3280                                 /*
3281                                  * Failure here doesn't mean UNMAP is not
3282                                  * supported as this is an optional page.
3283                                  */
3284                                 softc->unmap_max_lba = 1;
3285                                 softc->unmap_max_ranges = 1;
3286                         }
3287                 }
3288
3289                 free(block_limits, M_SCSIDA);
3290                 xpt_release_ccb(done_ccb);
3291                 softc->state = DA_STATE_PROBE_BDC;
3292                 xpt_schedule(periph, priority);
3293                 return;
3294         }
3295         case DA_CCB_PROBE_BDC:
3296         {
3297                 struct scsi_vpd_block_characteristics *bdc;
3298
3299                 bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3300
3301                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3302                         /*
3303                          * Disable queue sorting for non-rotational media
3304                          * by default.
3305                          */
3306                         if (scsi_2btoul(bdc->medium_rotation_rate) ==
3307                             SVPD_BDC_RATE_NONE_ROTATING)
3308                                 softc->sort_io_queue = 0;
3309                 } else {
3310                         int error;
3311                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3312                                         SF_RETRY_UA|SF_NO_PRINT);
3313                         if (error == ERESTART)
3314                                 return;
3315                         else if (error != 0) {
3316                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3317                                         /* Don't wedge this device's queue */
3318                                         cam_release_devq(done_ccb->ccb_h.path,
3319                                                          /*relsim_flags*/0,
3320                                                          /*reduction*/0,
3321                                                          /*timeout*/0,
3322                                                          /*getcount_only*/0);
3323                                 }
3324                         }
3325                 }
3326
3327                 free(bdc, M_SCSIDA);
3328                 xpt_release_ccb(done_ccb);
3329                 softc->state = DA_STATE_PROBE_ATA;
3330                 xpt_schedule(periph, priority);
3331                 return;
3332         }
3333         case DA_CCB_PROBE_ATA:
3334         {
3335                 int i;
3336                 struct ata_params *ata_params;
3337                 int16_t *ptr;
3338
3339                 ata_params = (struct ata_params *)csio->data_ptr;
3340                 ptr = (uint16_t *)ata_params;
3341
3342                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3343                         for (i = 0; i < sizeof(*ata_params) / 2; i++)
3344                                 ptr[i] = le16toh(ptr[i]);
3345                         if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM) {
3346                                 dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3347                                 if (ata_params->max_dsm_blocks != 0)
3348                                         softc->trim_max_ranges = min(
3349                                           softc->trim_max_ranges,
3350                                           ata_params->max_dsm_blocks *
3351                                           ATA_DSM_BLK_RANGES);
3352                         }
3353                         /*
3354                          * Disable queue sorting for non-rotational media
3355                          * by default.
3356                          */
3357                         if (ata_params->media_rotation_rate == 1)
3358                                 softc->sort_io_queue = 0;
3359                 } else {
3360                         int error;
3361                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3362                                         SF_RETRY_UA|SF_NO_PRINT);
3363                         if (error == ERESTART)
3364                                 return;
3365                         else if (error != 0) {
3366                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3367                                         /* Don't wedge this device's queue */
3368                                         cam_release_devq(done_ccb->ccb_h.path,
3369                                                          /*relsim_flags*/0,
3370                                                          /*reduction*/0,
3371                                                          /*timeout*/0,
3372                                                          /*getcount_only*/0);
3373                                 }
3374                         }
3375                 }
3376
3377                 free(ata_params, M_SCSIDA);
3378                 daprobedone(periph, done_ccb);
3379                 return;
3380         }
3381         case DA_CCB_WAITING:
3382         {
3383                 /* Caller will release the CCB */
3384                 wakeup(&done_ccb->ccb_h.cbfcnp);
3385                 return;
3386         }
3387         case DA_CCB_DUMP:
3388                 /* No-op.  We're polling */
3389                 return;
3390         case DA_CCB_TUR:
3391         {
3392                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3393
3394                         if (daerror(done_ccb, CAM_RETRY_SELTO,
3395                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3396                             ERESTART)
3397                                 return;
3398                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3399                                 cam_release_devq(done_ccb->ccb_h.path,
3400                                                  /*relsim_flags*/0,
3401                                                  /*reduction*/0,
3402                                                  /*timeout*/0,
3403                                                  /*getcount_only*/0);
3404                 }
3405                 xpt_release_ccb(done_ccb);
3406                 cam_periph_release_locked(periph);
3407                 return;
3408         }
3409         default:
3410                 break;
3411         }
3412         xpt_release_ccb(done_ccb);
3413 }
3414
3415 static void
3416 dareprobe(struct cam_periph *periph)
3417 {
3418         struct da_softc   *softc;
3419         cam_status status;
3420
3421         softc = (struct da_softc *)periph->softc;
3422
3423         /* Probe in progress; don't interfere. */
3424         if (softc->state != DA_STATE_NORMAL)
3425                 return;
3426
3427         status = cam_periph_acquire(periph);
3428         KASSERT(status == CAM_REQ_CMP,
3429             ("dareprobe: cam_periph_acquire failed"));
3430
3431         if (softc->flags & DA_FLAG_CAN_RC16)
3432                 softc->state = DA_STATE_PROBE_RC16;
3433         else
3434                 softc->state = DA_STATE_PROBE_RC;
3435
3436         xpt_schedule(periph, CAM_PRIORITY_DEV);
3437 }
3438
3439 static int
3440 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3441 {
3442         struct da_softc   *softc;
3443         struct cam_periph *periph;
3444         int error, error_code, sense_key, asc, ascq;
3445
3446         periph = xpt_path_periph(ccb->ccb_h.path);
3447         softc = (struct da_softc *)periph->softc;
3448
3449         /*
3450          * Automatically detect devices that do not support
3451          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3452          */
3453         error = 0;
3454         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3455                 error = cmd6workaround(ccb);
3456         } else if (scsi_extract_sense_ccb(ccb,
3457             &error_code, &sense_key, &asc, &ascq)) {
3458                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3459                         error = cmd6workaround(ccb);
3460                 /*
3461                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
3462                  * query the capacity and notify upper layers.
3463                  */
3464                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3465                     asc == 0x2A && ascq == 0x09) {
3466                         xpt_print(periph->path, "capacity data has changed\n");
3467                         dareprobe(periph);
3468                         sense_flags |= SF_NO_PRINT;
3469                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3470                     asc == 0x28 && ascq == 0x00)
3471                         disk_media_changed(softc->disk, M_NOWAIT);
3472                 else if (sense_key == SSD_KEY_NOT_READY &&
3473                     asc == 0x3a && (softc->flags & DA_FLAG_SAW_MEDIA)) {
3474                         softc->flags &= ~DA_FLAG_SAW_MEDIA;
3475                         disk_media_gone(softc->disk, M_NOWAIT);
3476                 }
3477         }
3478         if (error == ERESTART)
3479                 return (ERESTART);
3480
3481         /*
3482          * XXX
3483          * Until we have a better way of doing pack validation,
3484          * don't treat UAs as errors.
3485          */
3486         sense_flags |= SF_RETRY_UA;
3487         return(cam_periph_error(ccb, cam_flags, sense_flags,
3488                                 &softc->saved_ccb));
3489 }
3490
3491 static void
3492 damediapoll(void *arg)
3493 {
3494         struct cam_periph *periph = arg;
3495         struct da_softc *softc = periph->softc;
3496
3497         if (!softc->tur && softc->outstanding_cmds == 0) {
3498                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3499                         softc->tur = 1;
3500                         daschedule(periph);
3501                 }
3502         }
3503         /* Queue us up again */
3504         if (da_poll_period != 0)
3505                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3506 }
3507
3508 static void
3509 daprevent(struct cam_periph *periph, int action)
3510 {
3511         struct  da_softc *softc;
3512         union   ccb *ccb;
3513         int     error;
3514
3515         softc = (struct da_softc *)periph->softc;
3516
3517         if (((action == PR_ALLOW)
3518           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3519          || ((action == PR_PREVENT)
3520           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3521                 return;
3522         }
3523
3524         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3525
3526         scsi_prevent(&ccb->csio,
3527                      /*retries*/1,
3528                      /*cbcfp*/dadone,
3529                      MSG_SIMPLE_Q_TAG,
3530                      action,
3531                      SSD_FULL_SIZE,
3532                      5000);
3533
3534         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3535             SF_RETRY_UA | SF_QUIET_IR, softc->disk->d_devstat);
3536
3537         if (error == 0) {
3538                 if (action == PR_ALLOW)
3539                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
3540                 else
3541                         softc->flags |= DA_FLAG_PACK_LOCKED;
3542         }
3543
3544         xpt_release_ccb(ccb);
3545 }
3546
3547 static void
3548 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3549           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3550 {
3551         struct ccb_calc_geometry ccg;
3552         struct da_softc *softc;
3553         struct disk_params *dp;
3554         u_int lbppbe, lalba;
3555
3556         softc = (struct da_softc *)periph->softc;
3557
3558         dp = &softc->params;
3559         dp->secsize = block_len;
3560         dp->sectors = maxsector + 1;
3561         if (rcaplong != NULL) {
3562                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3563                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3564                 lalba &= SRC16_LALBA_A;
3565         } else {
3566                 lbppbe = 0;
3567                 lalba = 0;
3568         }
3569
3570         if (lbppbe > 0) {
3571                 dp->stripesize = block_len << lbppbe;
3572                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3573                     dp->stripesize;
3574         } else if (softc->quirks & DA_Q_4K) {
3575                 dp->stripesize = 4096;
3576                 dp->stripeoffset = 0;
3577         } else {
3578                 dp->stripesize = 0;
3579                 dp->stripeoffset = 0;
3580         }
3581         /*
3582          * Have the controller provide us with a geometry
3583          * for this disk.  The only time the geometry
3584          * matters is when we boot and the controller
3585          * is the only one knowledgeable enough to come
3586          * up with something that will make this a bootable
3587          * device.
3588          */
3589         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3590         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3591         ccg.block_size = dp->secsize;
3592         ccg.volume_size = dp->sectors;
3593         ccg.heads = 0;
3594         ccg.secs_per_track = 0;
3595         ccg.cylinders = 0;
3596         xpt_action((union ccb*)&ccg);
3597         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3598                 /*
3599                  * We don't know what went wrong here- but just pick
3600                  * a geometry so we don't have nasty things like divide
3601                  * by zero.
3602                  */
3603                 dp->heads = 255;
3604                 dp->secs_per_track = 255;
3605                 dp->cylinders = dp->sectors / (255 * 255);
3606                 if (dp->cylinders == 0) {
3607                         dp->cylinders = 1;
3608                 }
3609         } else {
3610                 dp->heads = ccg.heads;
3611                 dp->secs_per_track = ccg.secs_per_track;
3612                 dp->cylinders = ccg.cylinders;
3613         }
3614
3615         /*
3616          * If the user supplied a read capacity buffer, and if it is
3617          * different than the previous buffer, update the data in the EDT.
3618          * If it's the same, we don't bother.  This avoids sending an
3619          * update every time someone opens this device.
3620          */
3621         if ((rcaplong != NULL)
3622          && (bcmp(rcaplong, &softc->rcaplong,
3623                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3624                 struct ccb_dev_advinfo cdai;
3625
3626                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3627                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3628                 cdai.buftype = CDAI_TYPE_RCAPLONG;
3629                 cdai.flags |= CDAI_FLAG_STORE;
3630                 cdai.bufsiz = rcap_len;
3631                 cdai.buf = (uint8_t *)rcaplong;
3632                 xpt_action((union ccb *)&cdai);
3633                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3634                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3635                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
3636                         xpt_print(periph->path, "%s: failed to set read "
3637                                   "capacity advinfo\n", __func__);
3638                         /* Use cam_error_print() to decode the status */
3639                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3640                                         CAM_EPF_ALL);
3641                 } else {
3642                         bcopy(rcaplong, &softc->rcaplong,
3643                               min(sizeof(softc->rcaplong), rcap_len));
3644                 }
3645         }
3646
3647         softc->disk->d_sectorsize = softc->params.secsize;
3648         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3649         softc->disk->d_stripesize = softc->params.stripesize;
3650         softc->disk->d_stripeoffset = softc->params.stripeoffset;
3651         /* XXX: these are not actually "firmware" values, so they may be wrong */
3652         softc->disk->d_fwsectors = softc->params.secs_per_track;
3653         softc->disk->d_fwheads = softc->params.heads;
3654         softc->disk->d_devstat->block_size = softc->params.secsize;
3655         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3656 }
3657
3658 static void
3659 dasendorderedtag(void *arg)
3660 {
3661         struct da_softc *softc = arg;
3662
3663         if (da_send_ordered) {
3664                 if ((softc->ordered_tag_count == 0)
3665                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
3666                         softc->flags |= DA_FLAG_NEED_OTAG;
3667                 }
3668                 if (softc->outstanding_cmds > 0)
3669                         softc->flags &= ~DA_FLAG_WENT_IDLE;
3670
3671                 softc->ordered_tag_count = 0;
3672         }
3673         /* Queue us up again */
3674         callout_reset(&softc->sendordered_c,
3675             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3676             dasendorderedtag, softc);
3677 }
3678
3679 /*
3680  * Step through all DA peripheral drivers, and if the device is still open,
3681  * sync the disk cache to physical media.
3682  */
3683 static void
3684 dashutdown(void * arg, int howto)
3685 {
3686         struct cam_periph *periph;
3687         struct da_softc *softc;
3688         union ccb *ccb;
3689         int error;
3690
3691         CAM_PERIPH_FOREACH(periph, &dadriver) {
3692                 softc = (struct da_softc *)periph->softc;
3693                 if (SCHEDULER_STOPPED()) {
3694                         /* If we paniced with the lock held, do not recurse. */
3695                         if (!cam_periph_owned(periph) &&
3696                             (softc->flags & DA_FLAG_OPEN)) {
3697                                 dadump(softc->disk, NULL, 0, 0, 0);
3698                         }
3699                         continue;
3700                 }
3701                 cam_periph_lock(periph);
3702
3703                 /*
3704                  * We only sync the cache if the drive is still open, and
3705                  * if the drive is capable of it..
3706                  */
3707                 if (((softc->flags & DA_FLAG_OPEN) == 0)
3708                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3709                         cam_periph_unlock(periph);
3710                         continue;
3711                 }
3712
3713                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3714                 scsi_synchronize_cache(&ccb->csio,
3715                                        /*retries*/0,
3716                                        /*cbfcnp*/dadone,
3717                                        MSG_SIMPLE_Q_TAG,
3718                                        /*begin_lba*/0, /* whole disk */
3719                                        /*lb_count*/0,
3720                                        SSD_FULL_SIZE,
3721                                        60 * 60 * 1000);
3722
3723                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3724                     /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3725                     softc->disk->d_devstat);
3726                 if (error != 0)
3727                         xpt_print(periph->path, "Synchronize cache failed\n");
3728                 xpt_release_ccb(ccb);
3729                 cam_periph_unlock(periph);
3730         }
3731 }
3732
3733 #else /* !_KERNEL */
3734
3735 /*
3736  * XXX This is only left out of the kernel build to silence warnings.  If,
3737  * for some reason this function is used in the kernel, the ifdefs should
3738  * be moved so it is included both in the kernel and userland.
3739  */
3740 void
3741 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
3742                  void (*cbfcnp)(struct cam_periph *, union ccb *),
3743                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
3744                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3745                  u_int32_t timeout)
3746 {
3747         struct scsi_format_unit *scsi_cmd;
3748
3749         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
3750         scsi_cmd->opcode = FORMAT_UNIT;
3751         scsi_cmd->byte2 = byte2;
3752         scsi_ulto2b(ileave, scsi_cmd->interleave);
3753
3754         cam_fill_csio(csio,
3755                       retries,
3756                       cbfcnp,
3757                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3758                       tag_action,
3759                       data_ptr,
3760                       dxfer_len,
3761                       sense_len,
3762                       sizeof(*scsi_cmd),
3763                       timeout);
3764 }
3765
3766 #endif /* _KERNEL */