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 <geom/geom.h>
  48 #include <geom/geom_disk.h>
  49 #endif /* _KERNEL */
  50
  51 #ifndef _KERNEL
  52 #include <stdio.h>
  53 #include <string.h>
  54 #endif /* _KERNEL */
  55
  56 #include <cam/cam.h>
  57 #include <cam/cam_ccb.h>
  58 #include <cam/cam_periph.h>
  59 #include <cam/cam_xpt_periph.h>
  60 #include <cam/cam_sim.h>
  61
  62 #include <cam/scsi/scsi_message.h>
  63
  64 #ifndef _KERNEL
  65 #include <cam/scsi/scsi_da.h>
  66 #endif /* !_KERNEL */
  67
  68 #ifdef _KERNEL
  69 typedef enum {
  70         DA_STATE_PROBE,
  71         DA_STATE_PROBE2,
  72         DA_STATE_NORMAL
  73 } da_state;
  74
  75 typedef enum {
  76         DA_FLAG_PACK_INVALID    = 0x001,
  77         DA_FLAG_NEW_PACK        = 0x002,
  78         DA_FLAG_PACK_LOCKED     = 0x004,
  79         DA_FLAG_PACK_REMOVABLE  = 0x008,
  80         DA_FLAG_SAW_MEDIA       = 0x010,
  81         DA_FLAG_NEED_OTAG       = 0x020,
  82         DA_FLAG_WENT_IDLE       = 0x040,
  83         DA_FLAG_RETRY_UA        = 0x080,
  84         DA_FLAG_OPEN            = 0x100,
  85         DA_FLAG_SCTX_INIT       = 0x200,
  86         DA_FLAG_CAN_RC16        = 0x400,
  87         DA_FLAG_PROBED          = 0x800
  88 } da_flags;
  89
  90 typedef enum {
  91         DA_Q_NONE               = 0x00,
  92         DA_Q_NO_SYNC_CACHE      = 0x01,
  93         DA_Q_NO_6_BYTE          = 0x02,
  94         DA_Q_NO_PREVENT         = 0x04,
  95         DA_Q_4K                 = 0x08
  96 } da_quirks;
  97
  98 typedef enum {
  99         DA_CCB_PROBE            = 0x01,
 100         DA_CCB_PROBE2           = 0x02,
 101         DA_CCB_BUFFER_IO        = 0x03,
 102         DA_CCB_WAITING          = 0x04,
 103         DA_CCB_DUMP             = 0x05,
 104         DA_CCB_DELETE           = 0x06,
 105         DA_CCB_TUR              = 0x07,
 106         DA_CCB_TYPE_MASK        = 0x0F,
 107         DA_CCB_RETRY_UA         = 0x10
 108 } da_ccb_state;
 109
 110 typedef enum {
 111         DA_DELETE_NONE,
 112         DA_DELETE_DISABLE,
 113         DA_DELETE_ZERO,
 114         DA_DELETE_WS10,
 115         DA_DELETE_WS16,
 116         DA_DELETE_UNMAP,
 117         DA_DELETE_MAX = DA_DELETE_UNMAP
 118 } da_delete_methods;
 119
 120 static const char *da_delete_method_names[] =
 121     { "NONE", "DISABLE", "ZERO", "WS10", "WS16", "UNMAP" };
 122
 123 /* Offsets into our private area for storing information */
 124 #define ccb_state       ppriv_field0
 125 #define ccb_bp          ppriv_ptr1
 126
 127 struct disk_params {
 128         u_int8_t  heads;
 129         u_int32_t cylinders;
 130         u_int8_t  secs_per_track;
 131         u_int32_t secsize;      /* Number of bytes/sector */
 132         u_int64_t sectors;      /* total number sectors */
 133         u_int     stripesize;
 134         u_int     stripeoffset;
 135 };
 136
 137 #define UNMAP_MAX_RANGES        512
 138
 139 struct da_softc {
 140         struct   bio_queue_head bio_queue;
 141         struct   bio_queue_head delete_queue;
 142         struct   bio_queue_head delete_run_queue;
 143         SLIST_ENTRY(da_softc) links;
 144         LIST_HEAD(, ccb_hdr) pending_ccbs;
 145         da_state state;
 146         da_flags flags;
 147         da_quirks quirks;
 148         int      minimum_cmd_size;
 149         int      error_inject;
 150         int      ordered_tag_count;
 151         int      outstanding_cmds;
 152         int      unmap_max_ranges;
 153         int      unmap_max_lba;
 154         int      delete_running;
 155         int      tur;
 156         da_delete_methods        delete_method;
 157         struct   disk_params params;
 158         struct   disk *disk;
 159         union    ccb saved_ccb;
 160         struct task             sysctl_task;
 161         struct sysctl_ctx_list  sysctl_ctx;
 162         struct sysctl_oid       *sysctl_tree;
 163         struct callout          sendordered_c;
 164         uint64_t wwpn;
 165         uint8_t  unmap_buf[UNMAP_MAX_RANGES * 16 + 8];
 166         struct scsi_read_capacity_data_long rcaplong;
 167         struct callout          mediapoll_c;
 168 };
 169
 170 struct da_quirk_entry {
 171         struct scsi_inquiry_pattern inq_pat;
 172         da_quirks quirks;
 173 };
 174
 175 static const char quantum[] = "QUANTUM";
 176 static const char microp[] = "MICROP";
 177
 178 static struct da_quirk_entry da_quirk_table[] =
 179 {
 180         /* SPI, FC devices */
 181         {
 182                 /*
 183                  * Fujitsu M2513A MO drives.
 184                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 185                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 186                  * Reported by: W.Scholten <whs@xs4all.nl>
 187                  */
 188                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 189                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 190         },
 191         {
 192                 /* See above. */
 193                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 194                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 195         },
 196         {
 197                 /*
 198                  * This particular Fujitsu drive doesn't like the
 199                  * synchronize cache command.
 200                  * Reported by: Tom Jackson <toj@gorilla.net>
 201                  */
 202                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 203                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 204         },
 205         {
 206                 /*
 207                  * This drive doesn't like the synchronize cache command
 208                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 209                  * in NetBSD PR kern/6027, August 24, 1998.
 210                  */
 211                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 212                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 213         },
 214         {
 215                 /*
 216                  * This drive doesn't like the synchronize cache command
 217                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 218                  * (PR 8882).
 219                  */
 220                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 221                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 222         },
 223         {
 224                 /*
 225                  * Doesn't like the synchronize cache command.
 226                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 227                  */
 228                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 229                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 230         },
 231         {
 232                 /*
 233                  * Doesn't like the synchronize cache command.
 234                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 235                  */
 236                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 237                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 238         },
 239         {
 240                 /*
 241                  * Doesn't like the synchronize cache command.
 242                  */
 243                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 244                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 245         },
 246         {
 247                 /*
 248                  * Doesn't like the synchronize cache command.
 249                  * Reported by: walter@pelissero.de
 250                  */
 251                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 252                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 253         },
 254         {
 255                 /*
 256                  * Doesn't work correctly with 6 byte reads/writes.
 257                  * Returns illegal request, and points to byte 9 of the
 258                  * 6-byte CDB.
 259                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 260                  */
 261                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 262                 /*quirks*/ DA_Q_NO_6_BYTE
 263         },
 264         {
 265                 /* See above. */
 266                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 267                 /*quirks*/ DA_Q_NO_6_BYTE
 268         },
 269         {
 270                 /*
 271                  * Doesn't like the synchronize cache command.
 272                  * Reported by: walter@pelissero.de
 273                  */
 274                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 275                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 276         },
 277         {
 278                 /*
 279                  * The CISS RAID controllers do not support SYNC_CACHE
 280                  */
 281                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 282                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 283         },
 284         /* USB mass storage devices supported by umass(4) */
 285         {
 286                 /*
 287                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 288                  * PR: kern/51675
 289                  */
 290                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 291                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 292         },
 293         {
 294                 /*
 295                  * Power Quotient Int. (PQI) USB flash key
 296                  * PR: kern/53067
 297                  */
 298                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 299                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 300         },
 301         {
 302                 /*
 303                  * Creative Nomad MUVO mp3 player (USB)
 304                  * PR: kern/53094
 305                  */
 306                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 307                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 308         },
 309         {
 310                 /*
 311                  * Jungsoft NEXDISK USB flash key
 312                  * PR: kern/54737
 313                  */
 314                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 315                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 316         },
 317         {
 318                 /*
 319                  * FreeDik USB Mini Data Drive
 320                  * PR: kern/54786
 321                  */
 322                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 323                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 324         },
 325         {
 326                 /*
 327                  * Sigmatel USB Flash MP3 Player
 328                  * PR: kern/57046
 329                  */
 330                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 331                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 332         },
 333         {
 334                 /*
 335                  * Neuros USB Digital Audio Computer
 336                  * PR: kern/63645
 337                  */
 338                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 339                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 340         },
 341         {
 342                 /*
 343                  * SEAGRAND NP-900 MP3 Player
 344                  * PR: kern/64563
 345                  */
 346                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 347                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 348         },
 349         {
 350                 /*
 351                  * iRiver iFP MP3 player (with UMS Firmware)
 352                  * PR: kern/54881, i386/63941, kern/66124
 353                  */
 354                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 355                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 356         },
 357         {
 358                 /*
 359                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 360                  * PR: kern/70158
 361                  */
 362                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 363                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 364         },
 365         {
 366                 /*
 367                  * ZICPlay USB MP3 Player with FM
 368                  * PR: kern/75057
 369                  */
 370                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 371                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 372         },
 373         {
 374                 /*
 375                  * TEAC USB floppy mechanisms
 376                  */
 377                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 378                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 379         },
 380         {
 381                 /*
 382                  * Kingston DataTraveler II+ USB Pen-Drive.
 383                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 384                  */
 385                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 386                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 387         },
 388         {
 389                 /*
 390                  * USB DISK Pro PMAP
 391                  * Reported by: jhs
 392                  * PR: usb/96381
 393                  */
 394                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
 395                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 396         },
 397         {
 398                 /*
 399                  * Motorola E398 Mobile Phone (TransFlash memory card).
 400                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 401                  * PR: usb/89889
 402                  */
 403                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 404                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 405         },
 406         {
 407                 /*
 408                  * Qware BeatZkey! Pro
 409                  * PR: usb/79164
 410                  */
 411                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 412                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 413         },
 414         {
 415                 /*
 416                  * Time DPA20B 1GB MP3 Player
 417                  * PR: usb/81846
 418                  */
 419                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 420                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 421         },
 422         {
 423                 /*
 424                  * Samsung USB key 128Mb
 425                  * PR: usb/90081
 426                  */
 427                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 428                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 429         },
 430         {
 431                 /*
 432                  * Kingston DataTraveler 2.0 USB Flash memory.
 433                  * PR: usb/89196
 434                  */
 435                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 436                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 437         },
 438         {
 439                 /*
 440                  * Creative MUVO Slim mp3 player (USB)
 441                  * PR: usb/86131
 442                  */
 443                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 444                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 445                 },
 446         {
 447                 /*
 448                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 449                  * PR: usb/80487
 450                  */
 451                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 452                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 453         },
 454         {
 455                 /*
 456                  * SanDisk Micro Cruzer 128MB
 457                  * PR: usb/75970
 458                  */
 459                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 460                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 461         },
 462         {
 463                 /*
 464                  * TOSHIBA TransMemory USB sticks
 465                  * PR: kern/94660
 466                  */
 467                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 468                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 469         },
 470         {
 471                 /*
 472                  * PNY USB Flash keys
 473                  * PR: usb/75578, usb/72344, usb/65436
 474                  */
 475                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 476                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 477         },
 478         {
 479                 /*
 480                  * Genesys 6-in-1 Card Reader
 481                  * PR: usb/94647
 482                  */
 483                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 484                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 485         },
 486         {
 487                 /*
 488                  * Rekam Digital CAMERA
 489                  * PR: usb/98713
 490                  */
 491                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 492                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 493         },
 494         {
 495                 /*
 496                  * iRiver H10 MP3 player
 497                  * PR: usb/102547
 498                  */
 499                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 500                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 501         },
 502         {
 503                 /*
 504                  * iRiver U10 MP3 player
 505                  * PR: usb/92306
 506                  */
 507                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 508                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 509         },
 510         {
 511                 /*
 512                  * X-Micro Flash Disk
 513                  * PR: usb/96901
 514                  */
 515                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 516                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 517         },
 518         {
 519                 /*
 520                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 521                  * PR: usb/96546
 522                  */
 523                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 524                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 525         },
 526         {
 527                 /*
 528                  * Denver MP3 player
 529                  * PR: usb/107101
 530                  */
 531                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 532                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 533         },
 534         {
 535                 /*
 536                  * Philips USB Key Audio KEY013
 537                  * PR: usb/68412
 538                  */
 539                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 540                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 541         },
 542         {
 543                 /*
 544                  * JNC MP3 Player
 545                  * PR: usb/94439
 546                  */
 547                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 548                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 549         },
 550         {
 551                 /*
 552                  * SAMSUNG MP0402H
 553                  * PR: usb/108427
 554                  */
 555                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 556                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 557         },
 558         {
 559                 /*
 560                  * I/O Magic USB flash - Giga Bank
 561                  * PR: usb/108810
 562                  */
 563                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 564                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 565         },
 566         {
 567                 /*
 568                  * JoyFly 128mb USB Flash Drive
 569                  * PR: 96133
 570                  */
 571                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 572                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 573         },
 574         {
 575                 /*
 576                  * ChipsBnk usb stick
 577                  * PR: 103702
 578                  */
 579                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 580                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 581         },
 582         {
 583                 /*
 584                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 585                  * PR: 129858
 586                  */
 587                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 588                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 589         },
 590         {
 591                 /*
 592                  * Samsung YP-U3 mp3-player
 593                  * PR: 125398
 594                  */
 595                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 596                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 597         },
 598         {
 599                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 600                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 601         },
 602         {
 603                 /*
 604                  * Sony Cyber-Shot DSC cameras
 605                  * PR: usb/137035
 606                  */
 607                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 608                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 609         },
 610         /* ATA/SATA devices over SAS/USB/... */
 611         {
 612                 /* Hitachi Advanced Format (4k) drives */
 613                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 614                 /*quirks*/DA_Q_4K
 615         },
 616         {
 617                 /* Samsung Advanced Format (4k) drives */
 618                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 619                 /*quirks*/DA_Q_4K
 620         },
 621         {
 622                 /* Samsung Advanced Format (4k) drives */
 623                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 624                 /*quirks*/DA_Q_4K
 625         },
 626         {
 627                 /* Samsung Advanced Format (4k) drives */
 628                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 629                 /*quirks*/DA_Q_4K
 630         },
 631         {
 632                 /* Samsung Advanced Format (4k) drives */
 633                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 634                 /*quirks*/DA_Q_4K
 635         },
 636         {
 637                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 638                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 639                 /*quirks*/DA_Q_4K
 640         },
 641         {
 642                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 643                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 644                 /*quirks*/DA_Q_4K
 645         },
 646         {
 647                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 648                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 649                 /*quirks*/DA_Q_4K
 650         },
 651         {
 652                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 653                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 654                 /*quirks*/DA_Q_4K
 655         },
 656         {
 657                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 658                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 659                 /*quirks*/DA_Q_4K
 660         },
 661         {
 662                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 663                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 664                 /*quirks*/DA_Q_4K
 665         },
 666         {
 667                 /* Seagate Momentus Advanced Format (4k) drives */
 668                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 669                 /*quirks*/DA_Q_4K
 670         },
 671         {
 672                 /* Seagate Momentus Advanced Format (4k) drives */
 673                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 674                 /*quirks*/DA_Q_4K
 675         },
 676         {
 677                 /* Seagate Momentus Advanced Format (4k) drives */
 678                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 679                 /*quirks*/DA_Q_4K
 680         },
 681         {
 682                 /* Seagate Momentus Advanced Format (4k) drives */
 683                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 684                 /*quirks*/DA_Q_4K
 685         },
 686         {
 687                 /* Seagate Momentus Advanced Format (4k) drives */
 688                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 689                 /*quirks*/DA_Q_4K
 690         },
 691         {
 692                 /* Seagate Momentus Advanced Format (4k) drives */
 693                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 694                 /*quirks*/DA_Q_4K
 695         },
 696         {
 697                 /* Seagate Momentus Advanced Format (4k) drives */
 698                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 699                 /*quirks*/DA_Q_4K
 700         },
 701         {
 702                 /* Seagate Momentus Advanced Format (4k) drives */
 703                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 704                 /*quirks*/DA_Q_4K
 705         },
 706         {
 707                 /* Seagate Momentus Advanced Format (4k) drives */
 708                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 709                 /*quirks*/DA_Q_4K
 710         },
 711         {
 712                 /* Seagate Momentus Advanced Format (4k) drives */
 713                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 714                 /*quirks*/DA_Q_4K
 715         },
 716         {
 717                 /* Seagate Momentus Advanced Format (4k) drives */
 718                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 719                 /*quirks*/DA_Q_4K
 720         },
 721         {
 722                 /* Seagate Momentus Advanced Format (4k) drives */
 723                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 724                 /*quirks*/DA_Q_4K
 725         },
 726         {
 727                 /* Seagate Momentus Advanced Format (4k) drives */
 728                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 729                 /*quirks*/DA_Q_4K
 730         },
 731         {
 732                 /* Seagate Momentus Advanced Format (4k) drives */
 733                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 734                 /*quirks*/DA_Q_4K
 735         },
 736         {
 737                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 738                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 739                 /*quirks*/DA_Q_4K
 740         },
 741         {
 742                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 743                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 744                 /*quirks*/DA_Q_4K
 745         },
 746         {
 747                 /* WDC Caviar Green Advanced Format (4k) drives */
 748                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 749                 /*quirks*/DA_Q_4K
 750         },
 751         {
 752                 /* WDC Caviar Green Advanced Format (4k) drives */
 753                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 754                 /*quirks*/DA_Q_4K
 755         },
 756         {
 757                 /* WDC Caviar Green Advanced Format (4k) drives */
 758                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 759                 /*quirks*/DA_Q_4K
 760         },
 761         {
 762                 /* WDC Caviar Green Advanced Format (4k) drives */
 763                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 764                 /*quirks*/DA_Q_4K
 765         },
 766         {
 767                 /* WDC Caviar Green Advanced Format (4k) drives */
 768                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 769                 /*quirks*/DA_Q_4K
 770         },
 771         {
 772                 /* WDC Caviar Green Advanced Format (4k) drives */
 773                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 774                 /*quirks*/DA_Q_4K
 775         },
 776         {
 777                 /* WDC Caviar Green Advanced Format (4k) drives */
 778                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 779                 /*quirks*/DA_Q_4K
 780         },
 781         {
 782                 /* WDC Caviar Green Advanced Format (4k) drives */
 783                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 784                 /*quirks*/DA_Q_4K
 785         },
 786         {
 787                 /* WDC Scorpio Black Advanced Format (4k) drives */
 788                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 789                 /*quirks*/DA_Q_4K
 790         },
 791         {
 792                 /* WDC Scorpio Black Advanced Format (4k) drives */
 793                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 794                 /*quirks*/DA_Q_4K
 795         },
 796         {
 797                 /* WDC Scorpio Black Advanced Format (4k) drives */
 798                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 799                 /*quirks*/DA_Q_4K
 800         },
 801         {
 802                 /* WDC Scorpio Black Advanced Format (4k) drives */
 803                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 804                 /*quirks*/DA_Q_4K
 805         },
 806         {
 807                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 808                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 809                 /*quirks*/DA_Q_4K
 810         },
 811         {
 812                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 813                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 814                 /*quirks*/DA_Q_4K
 815         },
 816         {
 817                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 818                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 819                 /*quirks*/DA_Q_4K
 820         },
 821         {
 822                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 823                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 824                 /*quirks*/DA_Q_4K
 825         },
 826         {
 827                 /*
 828                  * Olympus FE-210 camera
 829                  */
 830                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 831                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 832         },
 833         {
 834                 /*
 835                  * LG UP3S MP3 player
 836                  */
 837                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 838                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 839         },
 840         {
 841                 /*
 842                  * Laser MP3-2GA13 MP3 player
 843                  */
 844                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 845                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 846         },
 847         {
 848                 /*
 849                  * LaCie external 250GB Hard drive des by Porsche
 850                  * Submitted by: Ben Stuyts <ben@altesco.nl>
 851                  * PR: 121474
 852                  */
 853                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
 854                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 855         },
 856 };
 857
 858 static  disk_strategy_t dastrategy;
 859 static  dumper_t        dadump;
 860 static  periph_init_t   dainit;
 861 static  void            daasync(void *callback_arg, u_int32_t code,
 862                                 struct cam_path *path, void *arg);
 863 static  void            dasysctlinit(void *context, int pending);
 864 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 865 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
 866 static  int             dadeletemethodset(struct da_softc *softc,
 867                                           da_delete_methods delete_method);
 868 static  periph_ctor_t   daregister;
 869 static  periph_dtor_t   dacleanup;
 870 static  periph_start_t  dastart;
 871 static  periph_oninv_t  daoninvalidate;
 872 static  void            dadone(struct cam_periph *periph,
 873                                union ccb *done_ccb);
 874 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 875                                 u_int32_t sense_flags);
 876 static void             daprevent(struct cam_periph *periph, int action);
 877 static void             dareprobe(struct cam_periph *periph);
 878 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 879                                   uint64_t maxsector,
 880                                   struct scsi_read_capacity_data_long *rcaplong,
 881                                   size_t rcap_size);
 882 static timeout_t        dasendorderedtag;
 883 static void             dashutdown(void *arg, int howto);
 884 static timeout_t        damediapoll;
 885
 886 #ifndef DA_DEFAULT_POLL_PERIOD
 887 #define DA_DEFAULT_POLL_PERIOD  3
 888 #endif
 889
 890 #ifndef DA_DEFAULT_TIMEOUT
 891 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 892 #endif
 893
 894 #ifndef DA_DEFAULT_RETRY
 895 #define DA_DEFAULT_RETRY        4
 896 #endif
 897
 898 #ifndef DA_DEFAULT_SEND_ORDERED
 899 #define DA_DEFAULT_SEND_ORDERED 1
 900 #endif
 901
 902
 903 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
 904 static int da_retry_count = DA_DEFAULT_RETRY;
 905 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 906 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 907
 908 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 909             "CAM Direct Access Disk driver");
 910 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
 911            &da_poll_period, 0, "Media polling period in seconds");
 912 TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
 913 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 914            &da_retry_count, 0, "Normal I/O retry count");
 915 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 916 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 917            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 918 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 919 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
 920            &da_send_ordered, 0, "Send Ordered Tags");
 921 TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
 922
 923 /*
 924  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 925  * to the default timeout, we check to see whether an ordered
 926  * tagged transaction is appropriate to prevent simple tag
 927  * starvation.  Since we'd like to ensure that there is at least
 928  * 1/2 of the timeout length left for a starved transaction to
 929  * complete after we've sent an ordered tag, we must poll at least
 930  * four times in every timeout period.  This takes care of the worst
 931  * case where a starved transaction starts during an interval that
 932  * meets the requirement "don't send an ordered tag" test so it takes
 933  * us two intervals to determine that a tag must be sent.
 934  */
 935 #ifndef DA_ORDEREDTAG_INTERVAL
 936 #define DA_ORDEREDTAG_INTERVAL 4
 937 #endif
 938
 939 static struct periph_driver dadriver =
 940 {
 941         dainit, "da",
 942         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 943 };
 944
 945 PERIPHDRIVER_DECLARE(da, dadriver);
 946
 947 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 948
 949 static int
 950 daopen(struct disk *dp)
 951 {
 952         struct cam_periph *periph;
 953         struct da_softc *softc;
 954         int unit;
 955         int error;
 956
 957         periph = (struct cam_periph *)dp->d_drv1;
 958         if (periph == NULL) {
 959                 return (ENXIO);
 960         }
 961
 962         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 963                 return (ENXIO);
 964         }
 965
 966         cam_periph_lock(periph);
 967         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 968                 cam_periph_unlock(periph);
 969                 cam_periph_release(periph);
 970                 return (error);
 971         }
 972
 973         unit = periph->unit_number;
 974         softc = (struct da_softc *)periph->softc;
 975         softc->flags |= DA_FLAG_OPEN;
 976
 977         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 978             ("daopen\n"));
 979
 980         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 981                 /* Invalidate our pack information. */
 982                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 983         }
 984
 985         dareprobe(periph);
 986
 987         /* Wait for the disk size update.  */
 988         error = msleep(&softc->disk->d_mediasize, periph->sim->mtx, PRIBIO,
 989             "dareprobe", 0);
 990         if (error != 0)
 991                 xpt_print(periph->path, "unable to retrieve capacity data");
 992
 993         if (periph->flags & CAM_PERIPH_INVALID ||
 994             softc->disk->d_sectorsize == 0 ||
 995             softc->disk->d_mediasize == 0)
 996                 error = ENXIO;
 997
 998         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 999             (softc->quirks & DA_Q_NO_PREVENT) == 0)
1000                 daprevent(periph, PR_PREVENT);
1001
1002         if (error == 0)
1003                 softc->flags |= DA_FLAG_SAW_MEDIA;
1004
1005         cam_periph_unhold(periph);
1006         cam_periph_unlock(periph);
1007
1008         if (error != 0) {
1009                 softc->flags &= ~DA_FLAG_OPEN;
1010                 cam_periph_release(periph);
1011         }
1012
1013         return (error);
1014 }
1015
1016 static int
1017 daclose(struct disk *dp)
1018 {
1019         struct  cam_periph *periph;
1020         struct  da_softc *softc;
1021
1022         periph = (struct cam_periph *)dp->d_drv1;
1023         if (periph == NULL)
1024                 return (0);
1025
1026         cam_periph_lock(periph);
1027         if (cam_periph_hold(periph, PRIBIO) != 0) {
1028                 cam_periph_unlock(periph);
1029                 cam_periph_release(periph);
1030                 return (0);
1031         }
1032
1033         softc = (struct da_softc *)periph->softc;
1034
1035         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1036             ("daclose\n"));
1037
1038         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0
1039          && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1040                 union   ccb *ccb;
1041
1042                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1043
1044                 scsi_synchronize_cache(&ccb->csio,
1045                                        /*retries*/1,
1046                                        /*cbfcnp*/dadone,
1047                                        MSG_SIMPLE_Q_TAG,
1048                                        /*begin_lba*/0,/* Cover the whole disk */
1049                                        /*lb_count*/0,
1050                                        SSD_FULL_SIZE,
1051                                        5 * 60 * 1000);
1052
1053                 cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1054                                   /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1055                                   softc->disk->d_devstat);
1056                 xpt_release_ccb(ccb);
1057
1058         }
1059
1060         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
1061                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1062                         daprevent(periph, PR_ALLOW);
1063                 /*
1064                  * If we've got removeable media, mark the blocksize as
1065                  * unavailable, since it could change when new media is
1066                  * inserted.
1067                  */
1068                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1069         }
1070
1071         softc->flags &= ~DA_FLAG_OPEN;
1072         cam_periph_unhold(periph);
1073         cam_periph_unlock(periph);
1074         cam_periph_release(periph);
1075         return (0);
1076 }
1077
1078 static void
1079 daschedule(struct cam_periph *periph)
1080 {
1081         struct da_softc *softc = (struct da_softc *)periph->softc;
1082         uint32_t prio;
1083
1084         /* Check if cam_periph_getccb() was called. */
1085         prio = periph->immediate_priority;
1086
1087         /* Check if we have more work to do. */
1088         if (bioq_first(&softc->bio_queue) ||
1089             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1090             softc->tur) {
1091                 prio = CAM_PRIORITY_NORMAL;
1092         }
1093
1094         /* Schedule CCB if any of above is true. */
1095         if (prio != CAM_PRIORITY_NONE)
1096                 xpt_schedule(periph, prio);
1097 }
1098
1099 /*
1100  * Actually translate the requested transfer into one the physical driver
1101  * can understand.  The transfer is described by a buf and will include
1102  * only one physical transfer.
1103  */
1104 static void
1105 dastrategy(struct bio *bp)
1106 {
1107         struct cam_periph *periph;
1108         struct da_softc *softc;
1109
1110         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1111         if (periph == NULL) {
1112                 biofinish(bp, NULL, ENXIO);
1113                 return;
1114         }
1115         softc = (struct da_softc *)periph->softc;
1116
1117         cam_periph_lock(periph);
1118
1119         /*
1120          * If the device has been made invalid, error out
1121          */
1122         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1123                 cam_periph_unlock(periph);
1124                 biofinish(bp, NULL, ENXIO);
1125                 return;
1126         }
1127
1128         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1129
1130         /*
1131          * Place it in the queue of disk activities for this disk
1132          */
1133         if (bp->bio_cmd == BIO_DELETE) {
1134                 if (bp->bio_bcount == 0)
1135                         biodone(bp);
1136                 else
1137                         bioq_disksort(&softc->delete_queue, bp);
1138         } else
1139                 bioq_disksort(&softc->bio_queue, bp);
1140
1141         /*
1142          * Schedule ourselves for performing the work.
1143          */
1144         daschedule(periph);
1145         cam_periph_unlock(periph);
1146
1147         return;
1148 }
1149
1150 static int
1151 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1152 {
1153         struct      cam_periph *periph;
1154         struct      da_softc *softc;
1155         u_int       secsize;
1156         struct      ccb_scsiio csio;
1157         struct      disk *dp;
1158         int         error = 0;
1159
1160         dp = arg;
1161         periph = dp->d_drv1;
1162         if (periph == NULL)
1163                 return (ENXIO);
1164         softc = (struct da_softc *)periph->softc;
1165         cam_periph_lock(periph);
1166         secsize = softc->params.secsize;
1167
1168         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1169                 cam_periph_unlock(periph);
1170                 return (ENXIO);
1171         }
1172
1173         if (length > 0) {
1174                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1175                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1176                 scsi_read_write(&csio,
1177                                 /*retries*/0,
1178                                 dadone,
1179                                 MSG_ORDERED_Q_TAG,
1180                                 /*read*/FALSE,
1181                                 /*byte2*/0,
1182                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1183                                 offset / secsize,
1184                                 length / secsize,
1185                                 /*data_ptr*/(u_int8_t *) virtual,
1186                                 /*dxfer_len*/length,
1187                                 /*sense_len*/SSD_FULL_SIZE,
1188                                 da_default_timeout * 1000);
1189                 xpt_polled_action((union ccb *)&csio);
1190
1191                 error = cam_periph_error((union ccb *)&csio,
1192                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1193                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1194                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1195                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1196                 if (error != 0)
1197                         printf("Aborting dump due to I/O error.\n");
1198                 cam_periph_unlock(periph);
1199                 return (error);
1200         }
1201
1202         /*
1203          * Sync the disk cache contents to the physical media.
1204          */
1205         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1206
1207                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1208                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1209                 scsi_synchronize_cache(&csio,
1210                                        /*retries*/0,
1211                                        /*cbfcnp*/dadone,
1212                                        MSG_SIMPLE_Q_TAG,
1213                                        /*begin_lba*/0,/* Cover the whole disk */
1214                                        /*lb_count*/0,
1215                                        SSD_FULL_SIZE,
1216                                        5 * 60 * 1000);
1217                 xpt_polled_action((union ccb *)&csio);
1218
1219                 error = cam_periph_error((union ccb *)&csio,
1220                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1221                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1222                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1223                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1224                 if (error != 0)
1225                         xpt_print(periph->path, "Synchronize cache failed\n");
1226         }
1227         cam_periph_unlock(periph);
1228         return (error);
1229 }
1230
1231 static int
1232 dagetattr(struct bio *bp)
1233 {
1234         int ret;
1235         struct cam_periph *periph;
1236
1237         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1238         if (periph == NULL)
1239                 return (ENXIO);
1240
1241         cam_periph_lock(periph);
1242         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1243             periph->path);
1244         cam_periph_unlock(periph);
1245         if (ret == 0)
1246                 bp->bio_completed = bp->bio_length;
1247         return ret;
1248 }
1249
1250 static void
1251 dainit(void)
1252 {
1253         cam_status status;
1254
1255         /*
1256          * Install a global async callback.  This callback will
1257          * receive async callbacks like "new device found".
1258          */
1259         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1260
1261         if (status != CAM_REQ_CMP) {
1262                 printf("da: Failed to attach master async callback "
1263                        "due to status 0x%x!\n", status);
1264         } else if (da_send_ordered) {
1265
1266                 /* Register our shutdown event handler */
1267                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1268                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1269                     printf("dainit: shutdown event registration failed!\n");
1270         }
1271 }
1272
1273 /*
1274  * Callback from GEOM, called when it has finished cleaning up its
1275  * resources.
1276  */
1277 static void
1278 dadiskgonecb(struct disk *dp)
1279 {
1280         struct cam_periph *periph;
1281
1282         periph = (struct cam_periph *)dp->d_drv1;
1283
1284         cam_periph_release(periph);
1285 }
1286
1287 static void
1288 daoninvalidate(struct cam_periph *periph)
1289 {
1290         struct da_softc *softc;
1291
1292         softc = (struct da_softc *)periph->softc;
1293
1294         /*
1295          * De-register any async callbacks.
1296          */
1297         xpt_register_async(0, daasync, periph, periph->path);
1298
1299         softc->flags |= DA_FLAG_PACK_INVALID;
1300
1301         /*
1302          * Return all queued I/O with ENXIO.
1303          * XXX Handle any transactions queued to the card
1304          *     with XPT_ABORT_CCB.
1305          */
1306         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1307         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1308
1309         /*
1310          * Tell GEOM that we've gone away, we'll get a callback when it is
1311          * done cleaning up its resources.
1312          */
1313         disk_gone(softc->disk);
1314
1315         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1316                   softc->outstanding_cmds, periph->refcount);
1317 }
1318
1319 static void
1320 dacleanup(struct cam_periph *periph)
1321 {
1322         struct da_softc *softc;
1323
1324         softc = (struct da_softc *)periph->softc;
1325
1326         xpt_print(periph->path, "removing device entry\n");
1327         cam_periph_unlock(periph);
1328
1329         /*
1330          * If we can't free the sysctl tree, oh well...
1331          */
1332         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1333             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1334                 xpt_print(periph->path, "can't remove sysctl context\n");
1335         }
1336
1337         callout_drain(&softc->mediapoll_c);
1338         disk_destroy(softc->disk);
1339         callout_drain(&softc->sendordered_c);
1340         free(softc, M_DEVBUF);
1341         cam_periph_lock(periph);
1342 }
1343
1344 static void
1345 daasync(void *callback_arg, u_int32_t code,
1346         struct cam_path *path, void *arg)
1347 {
1348         struct cam_periph *periph;
1349         struct da_softc *softc;
1350
1351         periph = (struct cam_periph *)callback_arg;
1352         switch (code) {
1353         case AC_FOUND_DEVICE:
1354         {
1355                 struct ccb_getdev *cgd;
1356                 cam_status status;
1357
1358                 cgd = (struct ccb_getdev *)arg;
1359                 if (cgd == NULL)
1360                         break;
1361
1362                 if (cgd->protocol != PROTO_SCSI)
1363                         break;
1364
1365                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1366                     && SID_TYPE(&cgd->inq_data) != T_RBC
1367                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1368                         break;
1369
1370                 /*
1371                  * Allocate a peripheral instance for
1372                  * this device and start the probe
1373                  * process.
1374                  */
1375                 status = cam_periph_alloc(daregister, daoninvalidate,
1376                                           dacleanup, dastart,
1377                                           "da", CAM_PERIPH_BIO,
1378                                           cgd->ccb_h.path, daasync,
1379                                           AC_FOUND_DEVICE, cgd);
1380
1381                 if (status != CAM_REQ_CMP
1382                  && status != CAM_REQ_INPROG)
1383                         printf("daasync: Unable to attach to new device "
1384                                 "due to status 0x%x\n", status);
1385                 return;
1386         }
1387         case AC_ADVINFO_CHANGED:
1388         {
1389                 uintptr_t buftype;
1390
1391                 buftype = (uintptr_t)arg;
1392                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1393                         struct da_softc *softc;
1394
1395                         softc = periph->softc;
1396                         disk_attr_changed(softc->disk, "GEOM::physpath",
1397                                           M_NOWAIT);
1398                 }
1399                 break;
1400         }
1401         case AC_UNIT_ATTENTION:
1402         {
1403                 union ccb *ccb;
1404                 int error_code, sense_key, asc, ascq;
1405
1406                 softc = (struct da_softc *)periph->softc;
1407                 ccb = (union ccb *)arg;
1408
1409                 /*
1410                  * Handle all UNIT ATTENTIONs except our own,
1411                  * as they will be handled by daerror().
1412                  */
1413                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1414                     scsi_extract_sense_ccb(ccb,
1415                      &error_code, &sense_key, &asc, &ascq)) {
1416                         if (asc == 0x2A && ascq == 0x09) {
1417                                 xpt_print(ccb->ccb_h.path,
1418                                     "capacity data has changed\n");
1419                                 dareprobe(periph);
1420                         } else if (asc == 0x28 && ascq == 0x00)
1421                                 disk_media_changed(softc->disk, M_NOWAIT);
1422                 }
1423                 cam_periph_async(periph, code, path, arg);
1424                 break;
1425         }
1426         case AC_SCSI_AEN:
1427                 softc = (struct da_softc *)periph->softc;
1428                 if (softc->state == DA_STATE_NORMAL && !softc->tur) {
1429                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1430                                 softc->tur = 1;
1431                                 xpt_schedule(periph, CAM_PRIORITY_DEV);
1432                         }
1433                 }
1434                 /* FALLTHROUGH */
1435         case AC_SENT_BDR:
1436         case AC_BUS_RESET:
1437         {
1438                 struct ccb_hdr *ccbh;
1439
1440                 softc = (struct da_softc *)periph->softc;
1441                 /*
1442                  * Don't fail on the expected unit attention
1443                  * that will occur.
1444                  */
1445                 softc->flags |= DA_FLAG_RETRY_UA;
1446                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1447                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1448                 break;
1449         }
1450         default:
1451                 break;
1452         }
1453         cam_periph_async(periph, code, path, arg);
1454 }
1455
1456 static void
1457 dasysctlinit(void *context, int pending)
1458 {
1459         struct cam_periph *periph;
1460         struct da_softc *softc;
1461         char tmpstr[80], tmpstr2[80];
1462         struct ccb_trans_settings cts;
1463
1464         periph = (struct cam_periph *)context;
1465         /*
1466          * periph was held for us when this task was enqueued
1467          */
1468         if (periph->flags & CAM_PERIPH_INVALID) {
1469                 cam_periph_release(periph);
1470                 return;
1471         }
1472
1473         softc = (struct da_softc *)periph->softc;
1474         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1475         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1476
1477         sysctl_ctx_init(&softc->sysctl_ctx);
1478         softc->flags |= DA_FLAG_SCTX_INIT;
1479         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1480                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1481                 CTLFLAG_RD, 0, tmpstr);
1482         if (softc->sysctl_tree == NULL) {
1483                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1484                 cam_periph_release(periph);
1485                 return;
1486         }
1487
1488         /*
1489          * Now register the sysctl handler, so the user can change the value on
1490          * the fly.
1491          */
1492         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1493                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1494                 softc, 0, dadeletemethodsysctl, "A",
1495                 "BIO_DELETE execution method");
1496         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1497                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1498                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1499                 "Minimum CDB size");
1500
1501         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1502                        SYSCTL_CHILDREN(softc->sysctl_tree),
1503                        OID_AUTO,
1504                        "error_inject",
1505                        CTLFLAG_RW,
1506                        &softc->error_inject,
1507                        0,
1508                        "error_inject leaf");
1509
1510
1511         /*
1512          * Add some addressing info.
1513          */
1514         memset(&cts, 0, sizeof (cts));
1515         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1516         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1517         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1518         cam_periph_lock(periph);
1519         xpt_action((union ccb *)&cts);
1520         cam_periph_unlock(periph);
1521         if (cts.ccb_h.status != CAM_REQ_CMP) {
1522                 cam_periph_release(periph);
1523                 return;
1524         }
1525         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1526                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1527                 if (fc->valid & CTS_FC_VALID_WWPN) {
1528                         softc->wwpn = fc->wwpn;
1529                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1530                             SYSCTL_CHILDREN(softc->sysctl_tree),
1531                             OID_AUTO, "wwpn", CTLFLAG_RD,
1532                             &softc->wwpn, "World Wide Port Name");
1533                 }
1534         }
1535         cam_periph_release(periph);
1536 }
1537
1538 static int
1539 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1540 {
1541         int error, value;
1542
1543         value = *(int *)arg1;
1544
1545         error = sysctl_handle_int(oidp, &value, 0, req);
1546
1547         if ((error != 0)
1548          || (req->newptr == NULL))
1549                 return (error);
1550
1551         /*
1552          * Acceptable values here are 6, 10, 12 or 16.
1553          */
1554         if (value < 6)
1555                 value = 6;
1556         else if ((value > 6)
1557               && (value <= 10))
1558                 value = 10;
1559         else if ((value > 10)
1560               && (value <= 12))
1561                 value = 12;
1562         else if (value > 12)
1563                 value = 16;
1564
1565         *(int *)arg1 = value;
1566
1567         return (0);
1568 }
1569
1570 static int
1571 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1572 {
1573
1574         if (delete_method < 0 || delete_method > DA_DELETE_MAX)
1575                 return (EINVAL);
1576
1577         softc->delete_method = delete_method;
1578
1579         if (softc->delete_method > DA_DELETE_DISABLE)
1580                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
1581         else
1582                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1583
1584         return (0);
1585 }
1586
1587 static int
1588 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
1589 {
1590         char buf[16];
1591         const char *p;
1592         struct da_softc *softc;
1593         int i, error, value;
1594
1595         softc = (struct da_softc *)arg1;
1596
1597         value = softc->delete_method;
1598         if (value < 0 || value > DA_DELETE_MAX)
1599                 p = "UNKNOWN";
1600         else
1601                 p = da_delete_method_names[value];
1602         strncpy(buf, p, sizeof(buf));
1603         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
1604         if (error != 0 || req->newptr == NULL)
1605                 return (error);
1606         for (i = 0; i <= DA_DELETE_MAX; i++) {
1607                 if (strcmp(buf, da_delete_method_names[i]) != 0)
1608                         continue;
1609                 return dadeletemethodset(softc, i);
1610         }
1611         return (EINVAL);
1612 }
1613
1614 static cam_status
1615 daregister(struct cam_periph *periph, void *arg)
1616 {
1617         struct da_softc *softc;
1618         struct ccb_pathinq cpi;
1619         struct ccb_getdev *cgd;
1620         char tmpstr[80];
1621         caddr_t match;
1622
1623         cgd = (struct ccb_getdev *)arg;
1624         if (cgd == NULL) {
1625                 printf("daregister: no getdev CCB, can't register device\n");
1626                 return(CAM_REQ_CMP_ERR);
1627         }
1628
1629         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1630             M_NOWAIT|M_ZERO);
1631
1632         if (softc == NULL) {
1633                 printf("daregister: Unable to probe new device. "
1634                        "Unable to allocate softc\n");
1635                 return(CAM_REQ_CMP_ERR);
1636         }
1637
1638         LIST_INIT(&softc->pending_ccbs);
1639         softc->state = DA_STATE_PROBE;
1640         bioq_init(&softc->bio_queue);
1641         bioq_init(&softc->delete_queue);
1642         bioq_init(&softc->delete_run_queue);
1643         if (SID_IS_REMOVABLE(&cgd->inq_data))
1644                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1645         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
1646         softc->unmap_max_lba = 1024*1024*2;
1647
1648         periph->softc = softc;
1649
1650         /*
1651          * See if this device has any quirks.
1652          */
1653         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1654                                (caddr_t)da_quirk_table,
1655                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1656                                sizeof(*da_quirk_table), scsi_inquiry_match);
1657
1658         if (match != NULL)
1659                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1660         else
1661                 softc->quirks = DA_Q_NONE;
1662
1663         /* Check if the SIM does not want 6 byte commands */
1664         bzero(&cpi, sizeof(cpi));
1665         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1666         cpi.ccb_h.func_code = XPT_PATH_INQ;
1667         xpt_action((union ccb *)&cpi);
1668         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1669                 softc->quirks |= DA_Q_NO_6_BYTE;
1670
1671         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1672
1673         /*
1674          * Take an exclusive refcount on the periph while dastart is called
1675          * to finish the probe.  The reference will be dropped in dadone at
1676          * the end of probe.
1677          */
1678         (void)cam_periph_hold(periph, PRIBIO);
1679
1680         /*
1681          * Schedule a periodic event to occasionally send an
1682          * ordered tag to a device.
1683          */
1684         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1685         callout_reset(&softc->sendordered_c,
1686             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1687             dasendorderedtag, softc);
1688
1689         mtx_unlock(periph->sim->mtx);
1690         /*
1691          * RBC devices don't have to support READ(6), only READ(10).
1692          */
1693         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1694                 softc->minimum_cmd_size = 10;
1695         else
1696                 softc->minimum_cmd_size = 6;
1697
1698         /*
1699          * Load the user's default, if any.
1700          */
1701         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1702                  periph->unit_number);
1703         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1704
1705         /*
1706          * 6, 10, 12 and 16 are the currently permissible values.
1707          */
1708         if (softc->minimum_cmd_size < 6)
1709                 softc->minimum_cmd_size = 6;
1710         else if ((softc->minimum_cmd_size > 6)
1711               && (softc->minimum_cmd_size <= 10))
1712                 softc->minimum_cmd_size = 10;
1713         else if ((softc->minimum_cmd_size > 10)
1714               && (softc->minimum_cmd_size <= 12))
1715                 softc->minimum_cmd_size = 12;
1716         else if (softc->minimum_cmd_size > 12)
1717                 softc->minimum_cmd_size = 16;
1718
1719         /* Predict whether device may support READ CAPACITY(16). */
1720         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
1721                 softc->flags |= DA_FLAG_CAN_RC16;
1722                 softc->state = DA_STATE_PROBE2;
1723         }
1724
1725         /*
1726          * Register this media as a disk.
1727          */
1728         softc->disk = disk_alloc();
1729         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1730                           periph->unit_number, 0,
1731                           DEVSTAT_BS_UNAVAILABLE,
1732                           SID_TYPE(&cgd->inq_data) |
1733                           XPORT_DEVSTAT_TYPE(cpi.transport),
1734                           DEVSTAT_PRIORITY_DISK);
1735         softc->disk->d_open = daopen;
1736         softc->disk->d_close = daclose;
1737         softc->disk->d_strategy = dastrategy;
1738         softc->disk->d_dump = dadump;
1739         softc->disk->d_getattr = dagetattr;
1740         softc->disk->d_gone = dadiskgonecb;
1741         softc->disk->d_name = "da";
1742         softc->disk->d_drv1 = periph;
1743         if (cpi.maxio == 0)
1744                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1745         else if (cpi.maxio > MAXPHYS)
1746                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1747         else
1748                 softc->disk->d_maxsize = cpi.maxio;
1749         softc->disk->d_unit = periph->unit_number;
1750         softc->disk->d_flags = 0;
1751         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1752                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1753         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1754             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1755         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1756         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1757             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1758             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1759         softc->disk->d_hba_vendor = cpi.hba_vendor;
1760         softc->disk->d_hba_device = cpi.hba_device;
1761         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1762         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1763
1764         /*
1765          * Acquire a reference to the periph before we register with GEOM.
1766          * We'll release this reference once GEOM calls us back (via
1767          * dadiskgonecb()) telling us that our provider has been freed.
1768          */
1769         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1770                 xpt_print(periph->path, "%s: lost periph during "
1771                           "registration!\n", __func__);
1772                 mtx_lock(periph->sim->mtx);
1773                 return (CAM_REQ_CMP_ERR);
1774         }
1775
1776         disk_create(softc->disk, DISK_VERSION);
1777         mtx_lock(periph->sim->mtx);
1778
1779         /*
1780          * Add async callbacks for events of interest.
1781          * I don't bother checking if this fails as,
1782          * in most cases, the system will function just
1783          * fine without them and the only alternative
1784          * would be to not attach the device on failure.
1785          */
1786         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
1787             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
1788             daasync, periph, periph->path);
1789
1790         /*
1791          * Emit an attribute changed notification just in case
1792          * physical path information arrived before our async
1793          * event handler was registered, but after anyone attaching
1794          * to our disk device polled it.
1795          */
1796         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
1797
1798         /*
1799          * Schedule a periodic media polling events.
1800          */
1801         callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0);
1802         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
1803             (cgd->inq_flags & SID_AEN) == 0 &&
1804             da_poll_period != 0)
1805                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
1806                     damediapoll, periph);
1807
1808         xpt_schedule(periph, CAM_PRIORITY_DEV);
1809
1810         return(CAM_REQ_CMP);
1811 }
1812
1813 static void
1814 dastart(struct cam_periph *periph, union ccb *start_ccb)
1815 {
1816         struct da_softc *softc;
1817
1818         softc = (struct da_softc *)periph->softc;
1819
1820         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
1821
1822         switch (softc->state) {
1823         case DA_STATE_NORMAL:
1824         {
1825                 struct bio *bp, *bp1;
1826                 uint8_t tag_code;
1827
1828                 /* Execute immediate CCB if waiting. */
1829                 if (periph->immediate_priority <= periph->pinfo.priority) {
1830                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1831                                         ("queuing for immediate ccb\n"));
1832                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1833                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1834                                           periph_links.sle);
1835                         periph->immediate_priority = CAM_PRIORITY_NONE;
1836                         wakeup(&periph->ccb_list);
1837                         /* May have more work to do, so ensure we stay scheduled */
1838                         daschedule(periph);
1839                         break;
1840                 }
1841
1842                 /* Run BIO_DELETE if not running yet. */
1843                 if (!softc->delete_running &&
1844                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
1845                     uint64_t lba;
1846                     u_int count;
1847
1848                     if (softc->delete_method == DA_DELETE_UNMAP) {
1849                         uint8_t *buf = softc->unmap_buf;
1850                         uint64_t lastlba = (uint64_t)-1;
1851                         uint32_t lastcount = 0;
1852                         int blocks = 0, off, ranges = 0;
1853
1854                         softc->delete_running = 1;
1855                         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
1856                         bp1 = bp;
1857                         do {
1858                                 bioq_remove(&softc->delete_queue, bp1);
1859                                 if (bp1 != bp)
1860                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
1861                                 lba = bp1->bio_pblkno;
1862                                 count = bp1->bio_bcount / softc->params.secsize;
1863
1864                                 /* Try to extend the previous range. */
1865                                 if (lba == lastlba) {
1866                                         lastcount += count;
1867                                         off = (ranges - 1) * 16 + 8;
1868                                         scsi_ulto4b(lastcount, &buf[off + 8]);
1869                                 } else if (count > 0) {
1870                                         off = ranges * 16 + 8;
1871                                         scsi_u64to8b(lba, &buf[off + 0]);
1872                                         scsi_ulto4b(count, &buf[off + 8]);
1873                                         lastcount = count;
1874                                         ranges++;
1875                                 }
1876                                 blocks += count;
1877                                 lastlba = lba + count;
1878                                 bp1 = bioq_first(&softc->delete_queue);
1879                                 if (bp1 == NULL ||
1880                                     ranges >= softc->unmap_max_ranges ||
1881                                     blocks + bp1->bio_bcount /
1882                                      softc->params.secsize > softc->unmap_max_lba)
1883                                         break;
1884                         } while (1);
1885                         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
1886                         scsi_ulto2b(ranges * 16, &buf[2]);
1887
1888                         scsi_unmap(&start_ccb->csio,
1889                                         /*retries*/da_retry_count,
1890                                         /*cbfcnp*/dadone,
1891                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
1892                                         /*byte2*/0,
1893                                         /*data_ptr*/ buf,
1894                                         /*dxfer_len*/ ranges * 16 + 8,
1895                                         /*sense_len*/SSD_FULL_SIZE,
1896                                         da_default_timeout * 1000);
1897                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
1898                         goto out;
1899                     } else if (softc->delete_method == DA_DELETE_ZERO ||
1900                                softc->delete_method == DA_DELETE_WS10 ||
1901                                softc->delete_method == DA_DELETE_WS16) {
1902                         softc->delete_running = 1;
1903                         lba = bp->bio_pblkno;
1904                         count = 0;
1905                         bp1 = bp;
1906                         do {
1907                                 bioq_remove(&softc->delete_queue, bp1);
1908                                 if (bp1 != bp)
1909                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
1910                                 count += bp1->bio_bcount / softc->params.secsize;
1911                                 bp1 = bioq_first(&softc->delete_queue);
1912                                 if (bp1 == NULL ||
1913                                     lba + count != bp1->bio_pblkno ||
1914                                     count + bp1->bio_bcount /
1915                                      softc->params.secsize > 0xffff)
1916                                         break;
1917                         } while (1);
1918
1919                         scsi_write_same(&start_ccb->csio,
1920                                         /*retries*/da_retry_count,
1921                                         /*cbfcnp*/dadone,
1922                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
1923                                         /*byte2*/softc->delete_method ==
1924                                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
1925                                         softc->delete_method ==
1926                                             DA_DELETE_WS16 ? 16 : 10,
1927                                         /*lba*/lba,
1928                                         /*block_count*/count,
1929                                         /*data_ptr*/ __DECONST(void *,
1930                                             zero_region),
1931                                         /*dxfer_len*/ softc->params.secsize,
1932                                         /*sense_len*/SSD_FULL_SIZE,
1933                                         da_default_timeout * 1000);
1934                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
1935                         goto out;
1936                     } else {
1937                         bioq_flush(&softc->delete_queue, NULL, 0);
1938                         /* FALLTHROUGH */
1939                     }
1940                 }
1941
1942                 /* Run regular command. */
1943                 bp = bioq_takefirst(&softc->bio_queue);
1944                 if (bp == NULL) {
1945                         if (softc->tur) {
1946                                 softc->tur = 0;
1947                                 scsi_test_unit_ready(&start_ccb->csio,
1948                                      /*retries*/ da_retry_count,
1949                                      dadone,
1950                                      MSG_SIMPLE_Q_TAG,
1951                                      SSD_FULL_SIZE,
1952                                      da_default_timeout * 1000);
1953                                 start_ccb->ccb_h.ccb_bp = NULL;
1954                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
1955                                 xpt_action(start_ccb);
1956                         } else
1957                                 xpt_release_ccb(start_ccb);
1958                         break;
1959                 }
1960                 if (softc->tur) {
1961                         softc->tur = 0;
1962                         cam_periph_release_locked(periph);
1963                 }
1964
1965                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
1966                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1967                         softc->flags &= ~DA_FLAG_NEED_OTAG;
1968                         softc->ordered_tag_count++;
1969                         tag_code = MSG_ORDERED_Q_TAG;
1970                 } else {
1971                         tag_code = MSG_SIMPLE_Q_TAG;
1972                 }
1973
1974                 switch (bp->bio_cmd) {
1975                 case BIO_READ:
1976                 case BIO_WRITE:
1977                         scsi_read_write(&start_ccb->csio,
1978                                         /*retries*/da_retry_count,
1979                                         /*cbfcnp*/dadone,
1980                                         /*tag_action*/tag_code,
1981                                         /*read_op*/bp->bio_cmd
1982                                                 == BIO_READ,
1983                                         /*byte2*/0,
1984                                         softc->minimum_cmd_size,
1985                                         /*lba*/bp->bio_pblkno,
1986                                         /*block_count*/bp->bio_bcount /
1987                                         softc->params.secsize,
1988                                         /*data_ptr*/ bp->bio_data,
1989                                         /*dxfer_len*/ bp->bio_bcount,
1990                                         /*sense_len*/SSD_FULL_SIZE,
1991                                         da_default_timeout * 1000);
1992                         break;
1993                 case BIO_FLUSH:
1994                         /*
1995                          * BIO_FLUSH doesn't currently communicate
1996                          * range data, so we synchronize the cache
1997                          * over the whole disk.  We also force
1998                          * ordered tag semantics the flush applies
1999                          * to all previously queued I/O.
2000                          */
2001                         scsi_synchronize_cache(&start_ccb->csio,
2002                                                /*retries*/1,
2003                                                /*cbfcnp*/dadone,
2004                                                MSG_ORDERED_Q_TAG,
2005                                                /*begin_lba*/0,
2006                                                /*lb_count*/0,
2007                                                SSD_FULL_SIZE,
2008                                                da_default_timeout*1000);
2009                         break;
2010                 }
2011                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2012
2013 out:
2014                 /*
2015                  * Block out any asyncronous callbacks
2016                  * while we touch the pending ccb list.
2017                  */
2018                 LIST_INSERT_HEAD(&softc->pending_ccbs,
2019                                  &start_ccb->ccb_h, periph_links.le);
2020                 softc->outstanding_cmds++;
2021
2022                 /* We expect a unit attention from this device */
2023                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2024                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2025                         softc->flags &= ~DA_FLAG_RETRY_UA;
2026                 }
2027
2028                 start_ccb->ccb_h.ccb_bp = bp;
2029                 xpt_action(start_ccb);
2030
2031                 /* May have more work to do, so ensure we stay scheduled */
2032                 daschedule(periph);
2033                 break;
2034         }
2035         case DA_STATE_PROBE:
2036         {
2037                 struct scsi_read_capacity_data *rcap;
2038
2039                 rcap = (struct scsi_read_capacity_data *)
2040                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2041                 if (rcap == NULL) {
2042                         printf("dastart: Couldn't malloc read_capacity data\n");
2043                         /* da_free_periph??? */
2044                         break;
2045                 }
2046                 scsi_read_capacity(&start_ccb->csio,
2047                                    /*retries*/4,
2048                                    dadone,
2049                                    MSG_SIMPLE_Q_TAG,
2050                                    rcap,
2051                                    SSD_FULL_SIZE,
2052                                    /*timeout*/5000);
2053                 start_ccb->ccb_h.ccb_bp = NULL;
2054                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
2055                 xpt_action(start_ccb);
2056                 break;
2057         }
2058         case DA_STATE_PROBE2:
2059         {
2060                 struct scsi_read_capacity_data_long *rcaplong;
2061
2062                 rcaplong = (struct scsi_read_capacity_data_long *)
2063                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2064                 if (rcaplong == NULL) {
2065                         printf("dastart: Couldn't malloc read_capacity data\n");
2066                         /* da_free_periph??? */
2067                         break;
2068                 }
2069                 scsi_read_capacity_16(&start_ccb->csio,
2070                                       /*retries*/ 4,
2071                                       /*cbfcnp*/ dadone,
2072                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
2073                                       /*lba*/ 0,
2074                                       /*reladr*/ 0,
2075                                       /*pmi*/ 0,
2076                                       rcaplong,
2077                                       /*sense_len*/ SSD_FULL_SIZE,
2078                                       /*timeout*/ 60000);
2079                 start_ccb->ccb_h.ccb_bp = NULL;
2080                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
2081                 xpt_action(start_ccb);
2082                 break;
2083         }
2084         }
2085 }
2086
2087 static int
2088 cmd6workaround(union ccb *ccb)
2089 {
2090         struct scsi_rw_6 cmd6;
2091         struct scsi_rw_10 *cmd10;
2092         struct da_softc *softc;
2093         u_int8_t *cdb;
2094         struct bio *bp;
2095         int frozen;
2096
2097         cdb = ccb->csio.cdb_io.cdb_bytes;
2098         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2099
2100         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2101                 if (softc->delete_method == DA_DELETE_UNMAP) {
2102                         xpt_print(ccb->ccb_h.path, "UNMAP is not supported, "
2103                             "switching to WRITE SAME(16) with UNMAP.\n");
2104                         dadeletemethodset(softc, DA_DELETE_WS16);
2105                 } else if (softc->delete_method == DA_DELETE_WS16) {
2106                         xpt_print(ccb->ccb_h.path,
2107                             "WRITE SAME(16) with UNMAP is not supported, "
2108                             "disabling BIO_DELETE.\n");
2109                         dadeletemethodset(softc, DA_DELETE_DISABLE);
2110                 } else if (softc->delete_method == DA_DELETE_WS10) {
2111                         xpt_print(ccb->ccb_h.path,
2112                             "WRITE SAME(10) with UNMAP is not supported, "
2113                             "disabling BIO_DELETE.\n");
2114                         dadeletemethodset(softc, DA_DELETE_DISABLE);
2115                 } else if (softc->delete_method == DA_DELETE_ZERO) {
2116                         xpt_print(ccb->ccb_h.path,
2117                             "WRITE SAME(10) is not supported, "
2118                             "disabling BIO_DELETE.\n");
2119                         dadeletemethodset(softc, DA_DELETE_DISABLE);
2120                 } else
2121                         dadeletemethodset(softc, DA_DELETE_DISABLE);
2122                 while ((bp = bioq_takefirst(&softc->delete_run_queue))
2123                     != NULL)
2124                         bioq_disksort(&softc->delete_queue, bp);
2125                 bioq_insert_tail(&softc->delete_queue,
2126                     (struct bio *)ccb->ccb_h.ccb_bp);
2127                 ccb->ccb_h.ccb_bp = NULL;
2128                 return (0);
2129         }
2130
2131         /* Translation only possible if CDB is an array and cmd is R/W6 */
2132         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2133             (*cdb != READ_6 && *cdb != WRITE_6))
2134                 return 0;
2135
2136         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2137             "increasing minimum_cmd_size to 10.\n");
2138         softc->minimum_cmd_size = 10;
2139
2140         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2141         cmd10 = (struct scsi_rw_10 *)cdb;
2142         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2143         cmd10->byte2 = 0;
2144         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2145         cmd10->reserved = 0;
2146         scsi_ulto2b(cmd6.length, cmd10->length);
2147         cmd10->control = cmd6.control;
2148         ccb->csio.cdb_len = sizeof(*cmd10);
2149
2150         /* Requeue request, unfreezing queue if necessary */
2151         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2152         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2153         xpt_action(ccb);
2154         if (frozen) {
2155                 cam_release_devq(ccb->ccb_h.path,
2156                                  /*relsim_flags*/0,
2157                                  /*reduction*/0,
2158                                  /*timeout*/0,
2159                                  /*getcount_only*/0);
2160         }
2161         return (ERESTART);
2162 }
2163
2164 static void
2165 dadone(struct cam_periph *periph, union ccb *done_ccb)
2166 {
2167         struct da_softc *softc;
2168         struct ccb_scsiio *csio;
2169         u_int32_t  priority;
2170
2171         softc = (struct da_softc *)periph->softc;
2172         priority = done_ccb->ccb_h.pinfo.priority;
2173
2174         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2175
2176         csio = &done_ccb->csio;
2177         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
2178         case DA_CCB_BUFFER_IO:
2179         case DA_CCB_DELETE:
2180         {
2181                 struct bio *bp, *bp1;
2182
2183                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2184                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2185                         int error;
2186                         int sf;
2187
2188                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2189                                 sf = SF_RETRY_UA;
2190                         else
2191                                 sf = 0;
2192
2193                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2194                         if (error == ERESTART) {
2195                                 /*
2196                                  * A retry was scheuled, so
2197                                  * just return.
2198                                  */
2199                                 return;
2200                         }
2201                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2202                         if (error != 0) {
2203                                 int queued_error;
2204
2205                                 /*
2206                                  * return all queued I/O with EIO, so that
2207                                  * the client can retry these I/Os in the
2208                                  * proper order should it attempt to recover.
2209                                  */
2210                                 queued_error = EIO;
2211
2212                                 if (error == ENXIO
2213                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2214                                         /*
2215                                          * Catastrophic error.  Mark our pack as
2216                                          * invalid.
2217                                          */
2218                                         /*
2219                                          * XXX See if this is really a media
2220                                          * XXX change first?
2221                                          */
2222                                         xpt_print(periph->path,
2223                                             "Invalidating pack\n");
2224                                         softc->flags |= DA_FLAG_PACK_INVALID;
2225                                         queued_error = ENXIO;
2226                                 }
2227                                 bioq_flush(&softc->bio_queue, NULL,
2228                                            queued_error);
2229                                 if (bp != NULL) {
2230                                         bp->bio_error = error;
2231                                         bp->bio_resid = bp->bio_bcount;
2232                                         bp->bio_flags |= BIO_ERROR;
2233                                 }
2234                         } else if (bp != NULL) {
2235                                 bp->bio_resid = csio->resid;
2236                                 bp->bio_error = 0;
2237                                 if (bp->bio_resid != 0)
2238                                         bp->bio_flags |= BIO_ERROR;
2239                         }
2240                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2241                                 cam_release_devq(done_ccb->ccb_h.path,
2242                                                  /*relsim_flags*/0,
2243                                                  /*reduction*/0,
2244                                                  /*timeout*/0,
2245                                                  /*getcount_only*/0);
2246                 } else if (bp != NULL) {
2247                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2248                                 panic("REQ_CMP with QFRZN");
2249                         bp->bio_resid = csio->resid;
2250                         if (csio->resid > 0)
2251                                 bp->bio_flags |= BIO_ERROR;
2252                         if (softc->error_inject != 0) {
2253                                 bp->bio_error = softc->error_inject;
2254                                 bp->bio_resid = bp->bio_bcount;
2255                                 bp->bio_flags |= BIO_ERROR;
2256                                 softc->error_inject = 0;
2257                         }
2258
2259                 }
2260
2261                 /*
2262                  * Block out any asyncronous callbacks
2263                  * while we touch the pending ccb list.
2264                  */
2265                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
2266                 softc->outstanding_cmds--;
2267                 if (softc->outstanding_cmds == 0)
2268                         softc->flags |= DA_FLAG_WENT_IDLE;
2269
2270                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
2271                         xpt_print(periph->path, "oustanding %d\n",
2272                                   softc->outstanding_cmds);
2273                 }
2274
2275                 if ((csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) ==
2276                     DA_CCB_DELETE) {
2277                         while ((bp1 = bioq_takefirst(&softc->delete_run_queue))
2278                             != NULL) {
2279                                 bp1->bio_resid = bp->bio_resid;
2280                                 bp1->bio_error = bp->bio_error;
2281                                 if (bp->bio_flags & BIO_ERROR)
2282                                         bp1->bio_flags |= BIO_ERROR;
2283                                 biodone(bp1);
2284                         }
2285                         softc->delete_running = 0;
2286                         if (bp != NULL)
2287                                 biodone(bp);
2288                         daschedule(periph);
2289                 } else if (bp != NULL)
2290                         biodone(bp);
2291                 break;
2292         }
2293         case DA_CCB_PROBE:
2294         case DA_CCB_PROBE2:
2295         {
2296                 struct     scsi_read_capacity_data *rdcap;
2297                 struct     scsi_read_capacity_data_long *rcaplong;
2298                 char       announce_buf[80];
2299
2300                 rdcap = NULL;
2301                 rcaplong = NULL;
2302                 if (softc->state == DA_STATE_PROBE)
2303                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
2304                 else
2305                         rcaplong = (struct scsi_read_capacity_data_long *)
2306                                 csio->data_ptr;
2307
2308                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
2309                         struct disk_params *dp;
2310                         uint32_t block_size;
2311                         uint64_t maxsector;
2312                         u_int lbppbe;   /* LB per physical block exponent. */
2313                         u_int lalba;    /* Lowest aligned LBA. */
2314
2315                         if (softc->state == DA_STATE_PROBE) {
2316                                 block_size = scsi_4btoul(rdcap->length);
2317                                 maxsector = scsi_4btoul(rdcap->addr);
2318                                 lbppbe = 0;
2319                                 lalba = 0;
2320
2321                                 /*
2322                                  * According to SBC-2, if the standard 10
2323                                  * byte READ CAPACITY command returns 2^32,
2324                                  * we should issue the 16 byte version of
2325                                  * the command, since the device in question
2326                                  * has more sectors than can be represented
2327                                  * with the short version of the command.
2328                                  */
2329                                 if (maxsector == 0xffffffff) {
2330                                         softc->state = DA_STATE_PROBE2;
2331                                         free(rdcap, M_SCSIDA);
2332                                         xpt_release_ccb(done_ccb);
2333                                         xpt_schedule(periph, priority);
2334                                         return;
2335                                 }
2336                         } else {
2337                                 block_size = scsi_4btoul(rcaplong->length);
2338                                 maxsector = scsi_8btou64(rcaplong->addr);
2339                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2340                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2341                         }
2342
2343                         /*
2344                          * Because GEOM code just will panic us if we
2345                          * give them an 'illegal' value we'll avoid that
2346                          * here.
2347                          */
2348                         if (block_size == 0 && maxsector == 0) {
2349                                 snprintf(announce_buf, sizeof(announce_buf),
2350                                         "0MB (no media?)");
2351                         } else if (block_size >= MAXPHYS || block_size == 0) {
2352                                 xpt_print(periph->path,
2353                                     "unsupportable block size %ju\n",
2354                                     (uintmax_t) block_size);
2355                                 announce_buf[0] = '\0';
2356                                 cam_periph_invalidate(periph);
2357                         } else {
2358                                 /*
2359                                  * We pass rcaplong into dasetgeom(),
2360                                  * because it will only use it if it is
2361                                  * non-NULL.
2362                                  */
2363                                 dasetgeom(periph, block_size, maxsector,
2364                                           rcaplong, sizeof(*rcaplong));
2365                                 if ((lalba & SRC16_LBPME_A)
2366                                  && softc->delete_method == DA_DELETE_NONE)
2367                                         dadeletemethodset(softc, DA_DELETE_UNMAP);
2368                                 dp = &softc->params;
2369                                 snprintf(announce_buf, sizeof(announce_buf),
2370                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
2371                                         "%dC)", (uintmax_t)
2372                                         (((uintmax_t)dp->secsize *
2373                                         dp->sectors) / (1024*1024)),
2374                                         (uintmax_t)dp->sectors,
2375                                         dp->secsize, dp->heads,
2376                                         dp->secs_per_track, dp->cylinders);
2377                         }
2378                 } else {
2379                         int     error;
2380
2381                         announce_buf[0] = '\0';
2382
2383                         /*
2384                          * Retry any UNIT ATTENTION type errors.  They
2385                          * are expected at boot.
2386                          */
2387                         error = daerror(done_ccb, CAM_RETRY_SELTO,
2388                                         SF_RETRY_UA|SF_NO_PRINT);
2389                         if (error == ERESTART) {
2390                                 /*
2391                                  * A retry was scheuled, so
2392                                  * just return.
2393                                  */
2394                                 return;
2395                         } else if (error != 0) {
2396                                 int asc, ascq;
2397                                 int sense_key, error_code;
2398                                 int have_sense;
2399                                 cam_status status;
2400                                 struct ccb_getdev cgd;
2401
2402                                 /* Don't wedge this device's queue */
2403                                 status = done_ccb->ccb_h.status;
2404                                 if ((status & CAM_DEV_QFRZN) != 0)
2405                                         cam_release_devq(done_ccb->ccb_h.path,
2406                                                          /*relsim_flags*/0,
2407                                                          /*reduction*/0,
2408                                                          /*timeout*/0,
2409                                                          /*getcount_only*/0);
2410
2411
2412                                 xpt_setup_ccb(&cgd.ccb_h,
2413                                               done_ccb->ccb_h.path,
2414                                               CAM_PRIORITY_NORMAL);
2415                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2416                                 xpt_action((union ccb *)&cgd);
2417
2418                                 if (scsi_extract_sense_ccb(done_ccb,
2419                                     &error_code, &sense_key, &asc, &ascq))
2420                                         have_sense = TRUE;
2421                                 else
2422                                         have_sense = FALSE;
2423
2424                                 /*
2425                                  * If we tried READ CAPACITY(16) and failed,
2426                                  * fallback to READ CAPACITY(10).
2427                                  */
2428                                 if ((softc->state == DA_STATE_PROBE2) &&
2429                                     (softc->flags & DA_FLAG_CAN_RC16) &&
2430                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
2431                                         CAM_REQ_INVALID) ||
2432                                      ((have_sense) &&
2433                                       (error_code == SSD_CURRENT_ERROR) &&
2434                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
2435                                         softc->flags &= ~DA_FLAG_CAN_RC16;
2436                                         softc->state = DA_STATE_PROBE;
2437                                         free(rdcap, M_SCSIDA);
2438                                         xpt_release_ccb(done_ccb);
2439                                         xpt_schedule(periph, priority);
2440                                         return;
2441                                 } else
2442                                 /*
2443                                  * Attach to anything that claims to be a
2444                                  * direct access or optical disk device,
2445                                  * as long as it doesn't return a "Logical
2446                                  * unit not supported" (0x25) error.
2447                                  */
2448                                 if ((have_sense) && (asc != 0x25)
2449                                  && (error_code == SSD_CURRENT_ERROR)) {
2450                                         const char *sense_key_desc;
2451                                         const char *asc_desc;
2452
2453                                         scsi_sense_desc(sense_key, asc, ascq,
2454                                                         &cgd.inq_data,
2455                                                         &sense_key_desc,
2456                                                         &asc_desc);
2457                                         snprintf(announce_buf,
2458                                             sizeof(announce_buf),
2459                                                 "Attempt to query device "
2460                                                 "size failed: %s, %s",
2461                                                 sense_key_desc,
2462                                                 asc_desc);
2463                                 } else {
2464                                         if (have_sense)
2465                                                 scsi_sense_print(
2466                                                         &done_ccb->csio);
2467                                         else {
2468                                                 xpt_print(periph->path,
2469                                                     "got CAM status %#x\n",
2470                                                     done_ccb->ccb_h.status);
2471                                         }
2472
2473                                         xpt_print(periph->path, "fatal error, "
2474                                             "failed to attach to device\n");
2475
2476                                         /*
2477                                          * Free up resources.
2478                                          */
2479                                         cam_periph_invalidate(periph);
2480                                 }
2481                         }
2482                 }
2483                 free(csio->data_ptr, M_SCSIDA);
2484                 if (announce_buf[0] != '\0' && ((softc->flags & DA_FLAG_PROBED) == 0)) {
2485                         /*
2486                          * Create our sysctl variables, now that we know
2487                          * we have successfully attached.
2488                          */
2489                         /* increase the refcount */
2490                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2491                                 taskqueue_enqueue(taskqueue_thread,
2492                                                   &softc->sysctl_task);
2493                                 xpt_announce_periph(periph, announce_buf);
2494                         } else {
2495                                 xpt_print(periph->path, "fatal error, "
2496                                     "could not acquire reference count\n");
2497                         }
2498                 }
2499                 /*
2500                  * Since our peripheral may be invalidated by an error
2501                  * above or an external event, we must release our CCB
2502                  * before releasing the probe lock on the peripheral.
2503                  * The peripheral will only go away once the last lock
2504                  * is removed, and we need it around for the CCB release
2505                  * operation.
2506                  */
2507                 xpt_release_ccb(done_ccb);
2508                 softc->state = DA_STATE_NORMAL;
2509                 wakeup(&softc->disk->d_mediasize);
2510                 if ((softc->flags & DA_FLAG_PROBED) == 0) {
2511                         softc->flags |= DA_FLAG_PROBED;
2512                         cam_periph_unhold(periph);
2513                 } else
2514                         cam_periph_release_locked(periph);
2515                 return;
2516         }
2517         case DA_CCB_WAITING:
2518         {
2519                 /* Caller will release the CCB */
2520                 wakeup(&done_ccb->ccb_h.cbfcnp);
2521                 return;
2522         }
2523         case DA_CCB_DUMP:
2524                 /* No-op.  We're polling */
2525                 return;
2526         case DA_CCB_TUR:
2527         {
2528                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2529
2530                         if (daerror(done_ccb, CAM_RETRY_SELTO,
2531                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
2532                             ERESTART)
2533                                 return;
2534                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2535                                 cam_release_devq(done_ccb->ccb_h.path,
2536                                                  /*relsim_flags*/0,
2537                                                  /*reduction*/0,
2538                                                  /*timeout*/0,
2539                                                  /*getcount_only*/0);
2540                 }
2541                 xpt_release_ccb(done_ccb);
2542                 cam_periph_release_locked(periph);
2543                 return;
2544         }
2545         default:
2546                 break;
2547         }
2548         xpt_release_ccb(done_ccb);
2549 }
2550
2551 static void
2552 dareprobe(struct cam_periph *periph)
2553 {
2554         struct da_softc   *softc;
2555         cam_status status;
2556
2557         softc = (struct da_softc *)periph->softc;
2558
2559         /* Probe in progress; don't interfere. */
2560         if ((softc->flags & DA_FLAG_PROBED) == 0)
2561                 return;
2562
2563         status = cam_periph_acquire(periph);
2564         KASSERT(status == CAM_REQ_CMP,
2565             ("dareprobe: cam_periph_acquire failed"));
2566
2567         if (softc->flags & DA_FLAG_CAN_RC16)
2568                 softc->state = DA_STATE_PROBE2;
2569         else
2570                 softc->state = DA_STATE_PROBE;
2571
2572         xpt_schedule(periph, CAM_PRIORITY_DEV);
2573 }
2574
2575 static int
2576 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2577 {
2578         struct da_softc   *softc;
2579         struct cam_periph *periph;
2580         int error, error_code, sense_key, asc, ascq;
2581
2582         periph = xpt_path_periph(ccb->ccb_h.path);
2583         softc = (struct da_softc *)periph->softc;
2584
2585         /*
2586          * Automatically detect devices that do not support
2587          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
2588          */
2589         error = 0;
2590         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2591                 error = cmd6workaround(ccb);
2592         } else if (scsi_extract_sense_ccb(ccb,
2593             &error_code, &sense_key, &asc, &ascq)) {
2594                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2595                         error = cmd6workaround(ccb);
2596                 /*
2597                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
2598                  * query the capacity and notify upper layers.
2599                  */
2600                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
2601                     asc == 0x2A && ascq == 0x09) {
2602                         xpt_print(periph->path, "capacity data has changed\n");
2603                         dareprobe(periph);
2604                         sense_flags |= SF_NO_PRINT;
2605                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
2606                     asc == 0x28 && ascq == 0x00)
2607                         disk_media_changed(softc->disk, M_NOWAIT);
2608                 else if (sense_key == SSD_KEY_NOT_READY &&
2609                     asc == 0x3a && (softc->flags & DA_FLAG_SAW_MEDIA)) {
2610                         softc->flags &= ~DA_FLAG_SAW_MEDIA;
2611                         disk_media_gone(softc->disk, M_NOWAIT);
2612                 }
2613         }
2614         if (error == ERESTART)
2615                 return (ERESTART);
2616
2617         /*
2618          * XXX
2619          * Until we have a better way of doing pack validation,
2620          * don't treat UAs as errors.
2621          */
2622         sense_flags |= SF_RETRY_UA;
2623         return(cam_periph_error(ccb, cam_flags, sense_flags,
2624                                 &softc->saved_ccb));
2625 }
2626
2627 static void
2628 damediapoll(void *arg)
2629 {
2630         struct cam_periph *periph = arg;
2631         struct da_softc *softc = periph->softc;
2632
2633         if (softc->state == DA_STATE_NORMAL && !softc->tur) {
2634                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2635                         softc->tur = 1;
2636                         daschedule(periph);
2637                 }
2638         }
2639         /* Queue us up again */
2640         if (da_poll_period != 0)
2641                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
2642 }
2643
2644 static void
2645 daprevent(struct cam_periph *periph, int action)
2646 {
2647         struct  da_softc *softc;
2648         union   ccb *ccb;
2649         int     error;
2650
2651         softc = (struct da_softc *)periph->softc;
2652
2653         if (((action == PR_ALLOW)
2654           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2655          || ((action == PR_PREVENT)
2656           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2657                 return;
2658         }
2659
2660         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2661
2662         scsi_prevent(&ccb->csio,
2663                      /*retries*/1,
2664                      /*cbcfp*/dadone,
2665                      MSG_SIMPLE_Q_TAG,
2666                      action,
2667                      SSD_FULL_SIZE,
2668                      5000);
2669
2670         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
2671             SF_RETRY_UA | SF_QUIET_IR, softc->disk->d_devstat);
2672
2673         if (error == 0) {
2674                 if (action == PR_ALLOW)
2675                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
2676                 else
2677                         softc->flags |= DA_FLAG_PACK_LOCKED;
2678         }
2679
2680         xpt_release_ccb(ccb);
2681 }
2682
2683 static void
2684 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
2685           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
2686 {
2687         struct ccb_calc_geometry ccg;
2688         struct da_softc *softc;
2689         struct disk_params *dp;
2690         u_int lbppbe, lalba;
2691
2692         softc = (struct da_softc *)periph->softc;
2693
2694         dp = &softc->params;
2695         dp->secsize = block_len;
2696         dp->sectors = maxsector + 1;
2697         if (rcaplong != NULL) {
2698                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2699                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2700                 lalba &= SRC16_LALBA_A;
2701         } else {
2702                 lbppbe = 0;
2703                 lalba = 0;
2704         }
2705
2706         if (lbppbe > 0) {
2707                 dp->stripesize = block_len << lbppbe;
2708                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
2709                     dp->stripesize;
2710         } else if (softc->quirks & DA_Q_4K) {
2711                 dp->stripesize = 4096;
2712                 dp->stripeoffset = 0;
2713         } else {
2714                 dp->stripesize = 0;
2715                 dp->stripeoffset = 0;
2716         }
2717         /*
2718          * Have the controller provide us with a geometry
2719          * for this disk.  The only time the geometry
2720          * matters is when we boot and the controller
2721          * is the only one knowledgeable enough to come
2722          * up with something that will make this a bootable
2723          * device.
2724          */
2725         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2726         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2727         ccg.block_size = dp->secsize;
2728         ccg.volume_size = dp->sectors;
2729         ccg.heads = 0;
2730         ccg.secs_per_track = 0;
2731         ccg.cylinders = 0;
2732         xpt_action((union ccb*)&ccg);
2733         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2734                 /*
2735                  * We don't know what went wrong here- but just pick
2736                  * a geometry so we don't have nasty things like divide
2737                  * by zero.
2738                  */
2739                 dp->heads = 255;
2740                 dp->secs_per_track = 255;
2741                 dp->cylinders = dp->sectors / (255 * 255);
2742                 if (dp->cylinders == 0) {
2743                         dp->cylinders = 1;
2744                 }
2745         } else {
2746                 dp->heads = ccg.heads;
2747                 dp->secs_per_track = ccg.secs_per_track;
2748                 dp->cylinders = ccg.cylinders;
2749         }
2750
2751         /*
2752          * If the user supplied a read capacity buffer, and if it is
2753          * different than the previous buffer, update the data in the EDT.
2754          * If it's the same, we don't bother.  This avoids sending an
2755          * update every time someone opens this device.
2756          */
2757         if ((rcaplong != NULL)
2758          && (bcmp(rcaplong, &softc->rcaplong,
2759                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
2760                 struct ccb_dev_advinfo cdai;
2761
2762                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2763                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
2764                 cdai.buftype = CDAI_TYPE_RCAPLONG;
2765                 cdai.flags |= CDAI_FLAG_STORE;
2766                 cdai.bufsiz = rcap_len;
2767                 cdai.buf = (uint8_t *)rcaplong;
2768                 xpt_action((union ccb *)&cdai);
2769                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
2770                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
2771                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
2772                         xpt_print(periph->path, "%s: failed to set read "
2773                                   "capacity advinfo\n", __func__);
2774                         /* Use cam_error_print() to decode the status */
2775                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
2776                                         CAM_EPF_ALL);
2777                 } else {
2778                         bcopy(rcaplong, &softc->rcaplong,
2779                               min(sizeof(softc->rcaplong), rcap_len));
2780                 }
2781         }
2782
2783         softc->disk->d_sectorsize = softc->params.secsize;
2784         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
2785         softc->disk->d_stripesize = softc->params.stripesize;
2786         softc->disk->d_stripeoffset = softc->params.stripeoffset;
2787         /* XXX: these are not actually "firmware" values, so they may be wrong */
2788         softc->disk->d_fwsectors = softc->params.secs_per_track;
2789         softc->disk->d_fwheads = softc->params.heads;
2790         softc->disk->d_devstat->block_size = softc->params.secsize;
2791         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2792         if (softc->delete_method > DA_DELETE_DISABLE)
2793                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
2794         else
2795                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
2796 }
2797
2798 static void
2799 dasendorderedtag(void *arg)
2800 {
2801         struct da_softc *softc = arg;
2802
2803         if (da_send_ordered) {
2804                 if ((softc->ordered_tag_count == 0)
2805                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2806                         softc->flags |= DA_FLAG_NEED_OTAG;
2807                 }
2808                 if (softc->outstanding_cmds > 0)
2809                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2810
2811                 softc->ordered_tag_count = 0;
2812         }
2813         /* Queue us up again */
2814         callout_reset(&softc->sendordered_c,
2815             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2816             dasendorderedtag, softc);
2817 }
2818
2819 /*
2820  * Step through all DA peripheral drivers, and if the device is still open,
2821  * sync the disk cache to physical media.
2822  */
2823 static void
2824 dashutdown(void * arg, int howto)
2825 {
2826         struct cam_periph *periph;
2827         struct da_softc *softc;
2828         int error;
2829
2830         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2831                 union ccb ccb;
2832
2833                 cam_periph_lock(periph);
2834                 softc = (struct da_softc *)periph->softc;
2835
2836                 /*
2837                  * We only sync the cache if the drive is still open, and
2838                  * if the drive is capable of it..
2839                  */
2840                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2841                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2842                         cam_periph_unlock(periph);
2843                         continue;
2844                 }
2845
2846                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2847
2848                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2849                 scsi_synchronize_cache(&ccb.csio,
2850                                        /*retries*/0,
2851                                        /*cbfcnp*/dadone,
2852                                        MSG_SIMPLE_Q_TAG,
2853                                        /*begin_lba*/0, /* whole disk */
2854                                        /*lb_count*/0,
2855                                        SSD_FULL_SIZE,
2856                                        60 * 60 * 1000);
2857
2858                 xpt_polled_action(&ccb);
2859
2860                 error = cam_periph_error(&ccb,
2861                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
2862                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2863                         cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0,
2864                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
2865                 if (error != 0)
2866                         xpt_print(periph->path, "Synchronize cache failed\n");
2867                 cam_periph_unlock(periph);
2868         }
2869 }
2870
2871 #else /* !_KERNEL */
2872
2873 /*
2874  * XXX This is only left out of the kernel build to silence warnings.  If,
2875  * for some reason this function is used in the kernel, the ifdefs should
2876  * be moved so it is included both in the kernel and userland.
2877  */
2878 void
2879 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2880                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2881                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2882                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2883                  u_int32_t timeout)
2884 {
2885         struct scsi_format_unit *scsi_cmd;
2886
2887         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2888         scsi_cmd->opcode = FORMAT_UNIT;
2889         scsi_cmd->byte2 = byte2;
2890         scsi_ulto2b(ileave, scsi_cmd->interleave);
2891
2892         cam_fill_csio(csio,
2893                       retries,
2894                       cbfcnp,
2895                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2896                       tag_action,
2897                       data_ptr,
2898                       dxfer_len,
2899                       sense_len,
2900                       sizeof(*scsi_cmd),
2901                       timeout);
2902 }
2903
2904 #endif /* _KERNEL */