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_TAGGED_QUEUING  = 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_CAN_LBPME       = 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_TYPE_MASK        = 0x0F,
 105         DA_CCB_RETRY_UA         = 0x10
 106 } da_ccb_state;
 107
 108 /* Offsets into our private area for storing information */
 109 #define ccb_state       ppriv_field0
 110 #define ccb_bp          ppriv_ptr1
 111
 112 struct disk_params {
 113         u_int8_t  heads;
 114         u_int32_t cylinders;
 115         u_int8_t  secs_per_track;
 116         u_int32_t secsize;      /* Number of bytes/sector */
 117         u_int64_t sectors;      /* total number sectors */
 118         u_int     stripesize;
 119         u_int     stripeoffset;
 120 };
 121
 122 struct da_softc {
 123         struct   bio_queue_head bio_queue;
 124         SLIST_ENTRY(da_softc) links;
 125         LIST_HEAD(, ccb_hdr) pending_ccbs;
 126         da_state state;
 127         da_flags flags;
 128         da_quirks quirks;
 129         int      minimum_cmd_size;
 130         int      error_inject;
 131         int      ordered_tag_count;
 132         int      outstanding_cmds;
 133         struct   disk_params params;
 134         struct   disk *disk;
 135         union    ccb saved_ccb;
 136         struct task             sysctl_task;
 137         struct sysctl_ctx_list  sysctl_ctx;
 138         struct sysctl_oid       *sysctl_tree;
 139         struct callout          sendordered_c;
 140         uint64_t wwpn;
 141 };
 142
 143 struct da_quirk_entry {
 144         struct scsi_inquiry_pattern inq_pat;
 145         da_quirks quirks;
 146 };
 147
 148 static const char quantum[] = "QUANTUM";
 149 static const char microp[] = "MICROP";
 150
 151 static struct da_quirk_entry da_quirk_table[] =
 152 {
 153         /* SPI, FC devices */
 154         {
 155                 /*
 156                  * Fujitsu M2513A MO drives.
 157                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 158                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 159                  * Reported by: W.Scholten <whs@xs4all.nl>
 160                  */
 161                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 162                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 163         },
 164         {
 165                 /* See above. */
 166                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 167                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 168         },
 169         {
 170                 /*
 171                  * This particular Fujitsu drive doesn't like the
 172                  * synchronize cache command.
 173                  * Reported by: Tom Jackson <toj@gorilla.net>
 174                  */
 175                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 176                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 177         },
 178         {
 179                 /*
 180                  * This drive doesn't like the synchronize cache command
 181                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 182                  * in NetBSD PR kern/6027, August 24, 1998.
 183                  */
 184                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 185                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 186         },
 187         {
 188                 /*
 189                  * This drive doesn't like the synchronize cache command
 190                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 191                  * (PR 8882).
 192                  */
 193                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 194                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 195         },
 196         {
 197                 /*
 198                  * Doesn't like the synchronize cache command.
 199                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 200                  */
 201                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 202                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 203         },
 204         {
 205                 /*
 206                  * Doesn't like the synchronize cache command.
 207                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 208                  */
 209                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 210                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 211         },
 212         {
 213                 /*
 214                  * Doesn't like the synchronize cache command.
 215                  */
 216                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 217                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 218         },
 219         {
 220                 /*
 221                  * Doesn't like the synchronize cache command.
 222                  * Reported by: walter@pelissero.de
 223                  */
 224                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 225                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 226         },
 227         {
 228                 /*
 229                  * Doesn't work correctly with 6 byte reads/writes.
 230                  * Returns illegal request, and points to byte 9 of the
 231                  * 6-byte CDB.
 232                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 233                  */
 234                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 235                 /*quirks*/ DA_Q_NO_6_BYTE
 236         },
 237         {
 238                 /* See above. */
 239                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 240                 /*quirks*/ DA_Q_NO_6_BYTE
 241         },
 242         {
 243                 /*
 244                  * Doesn't like the synchronize cache command.
 245                  * Reported by: walter@pelissero.de
 246                  */
 247                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 248                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 249         },
 250         {
 251                 /*
 252                  * The CISS RAID controllers do not support SYNC_CACHE
 253                  */
 254                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 255                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 256         },
 257         /* USB mass storage devices supported by umass(4) */
 258         {
 259                 /*
 260                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 261                  * PR: kern/51675
 262                  */
 263                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 264                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 265         },
 266         {
 267                 /*
 268                  * Power Quotient Int. (PQI) USB flash key
 269                  * PR: kern/53067
 270                  */
 271                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 272                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 273         },
 274         {
 275                 /*
 276                  * Creative Nomad MUVO mp3 player (USB)
 277                  * PR: kern/53094
 278                  */
 279                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 280                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 281         },
 282         {
 283                 /*
 284                  * Jungsoft NEXDISK USB flash key
 285                  * PR: kern/54737
 286                  */
 287                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 288                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 289         },
 290         {
 291                 /*
 292                  * FreeDik USB Mini Data Drive
 293                  * PR: kern/54786
 294                  */
 295                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 296                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 297         },
 298         {
 299                 /*
 300                  * Sigmatel USB Flash MP3 Player
 301                  * PR: kern/57046
 302                  */
 303                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 304                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 305         },
 306         {
 307                 /*
 308                  * Neuros USB Digital Audio Computer
 309                  * PR: kern/63645
 310                  */
 311                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 312                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 313         },
 314         {
 315                 /*
 316                  * SEAGRAND NP-900 MP3 Player
 317                  * PR: kern/64563
 318                  */
 319                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 320                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 321         },
 322         {
 323                 /*
 324                  * iRiver iFP MP3 player (with UMS Firmware)
 325                  * PR: kern/54881, i386/63941, kern/66124
 326                  */
 327                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 328                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 329         },
 330         {
 331                 /*
 332                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 333                  * PR: kern/70158
 334                  */
 335                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 336                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 337         },
 338         {
 339                 /*
 340                  * ZICPlay USB MP3 Player with FM
 341                  * PR: kern/75057
 342                  */
 343                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 344                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 345         },
 346         {
 347                 /*
 348                  * TEAC USB floppy mechanisms
 349                  */
 350                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 351                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 352         },
 353         {
 354                 /*
 355                  * Kingston DataTraveler II+ USB Pen-Drive.
 356                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 357                  */
 358                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 359                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 360         },
 361         {
 362                 /*
 363                  * Motorola E398 Mobile Phone (TransFlash memory card).
 364                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 365                  * PR: usb/89889
 366                  */
 367                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 368                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 369         },
 370         {
 371                 /*
 372                  * Qware BeatZkey! Pro
 373                  * PR: usb/79164
 374                  */
 375                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 376                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 377         },
 378         {
 379                 /*
 380                  * Time DPA20B 1GB MP3 Player
 381                  * PR: usb/81846
 382                  */
 383                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 384                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 385         },
 386         {
 387                 /*
 388                  * Samsung USB key 128Mb
 389                  * PR: usb/90081
 390                  */
 391                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 392                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 393         },
 394         {
 395                 /*
 396                  * Kingston DataTraveler 2.0 USB Flash memory.
 397                  * PR: usb/89196
 398                  */
 399                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 400                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 401         },
 402         {
 403                 /*
 404                  * Creative MUVO Slim mp3 player (USB)
 405                  * PR: usb/86131
 406                  */
 407                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 408                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 409                 },
 410         {
 411                 /*
 412                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 413                  * PR: usb/80487
 414                  */
 415                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 416                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 417         },
 418         {
 419                 /*
 420                  * SanDisk Micro Cruzer 128MB
 421                  * PR: usb/75970
 422                  */
 423                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 424                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 425         },
 426         {
 427                 /*
 428                  * TOSHIBA TransMemory USB sticks
 429                  * PR: kern/94660
 430                  */
 431                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 432                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 433         },
 434         {
 435                 /*
 436                  * PNY USB Flash keys
 437                  * PR: usb/75578, usb/72344, usb/65436
 438                  */
 439                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 440                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 441         },
 442         {
 443                 /*
 444                  * Genesys 6-in-1 Card Reader
 445                  * PR: usb/94647
 446                  */
 447                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 448                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 449         },
 450         {
 451                 /*
 452                  * Rekam Digital CAMERA
 453                  * PR: usb/98713
 454                  */
 455                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 456                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 457         },
 458         {
 459                 /*
 460                  * iRiver H10 MP3 player
 461                  * PR: usb/102547
 462                  */
 463                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 464                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 465         },
 466         {
 467                 /*
 468                  * iRiver U10 MP3 player
 469                  * PR: usb/92306
 470                  */
 471                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 472                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 473         },
 474         {
 475                 /*
 476                  * X-Micro Flash Disk
 477                  * PR: usb/96901
 478                  */
 479                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 480                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 481         },
 482         {
 483                 /*
 484                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 485                  * PR: usb/96546
 486                  */
 487                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 488                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 489         },
 490         {
 491                 /*
 492                  * Denver MP3 player
 493                  * PR: usb/107101
 494                  */
 495                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 496                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 497         },
 498         {
 499                 /*
 500                  * Philips USB Key Audio KEY013
 501                  * PR: usb/68412
 502                  */
 503                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 504                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 505         },
 506         {
 507                 /*
 508                  * JNC MP3 Player
 509                  * PR: usb/94439
 510                  */
 511                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 512                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 513         },
 514         {
 515                 /*
 516                  * SAMSUNG MP0402H
 517                  * PR: usb/108427
 518                  */
 519                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 520                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 521         },
 522         {
 523                 /*
 524                  * I/O Magic USB flash - Giga Bank
 525                  * PR: usb/108810
 526                  */
 527                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 528                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 529         },
 530         {
 531                 /*
 532                  * JoyFly 128mb USB Flash Drive
 533                  * PR: 96133
 534                  */
 535                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 536                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 537         },
 538         {
 539                 /*
 540                  * ChipsBnk usb stick
 541                  * PR: 103702
 542                  */
 543                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 544                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 545         },
 546         {
 547                 /*
 548                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 549                  * PR: 129858
 550                  */
 551                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 552                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 553         },
 554         {
 555                 /*
 556                  * Samsung YP-U3 mp3-player
 557                  * PR: 125398
 558                  */
 559                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 560                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 561         },
 562         {
 563                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 564                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 565         },
 566         {
 567                 /*
 568                  * Sony Cyber-Shot DSC cameras
 569                  * PR: usb/137035
 570                  */
 571                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 572                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 573         },
 574         /* ATA/SATA devices over SAS/USB/... */
 575         {
 576                 /* Hitachi Advanced Format (4k) drives */
 577                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 578                 /*quirks*/DA_Q_4K
 579         },
 580         {
 581                 /* Samsung Advanced Format (4k) drives */
 582                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 583                 /*quirks*/DA_Q_4K
 584         },
 585         {
 586                 /* Samsung Advanced Format (4k) drives */
 587                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 588                 /*quirks*/DA_Q_4K
 589         },
 590         {
 591                 /* Samsung Advanced Format (4k) drives */
 592                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 593                 /*quirks*/DA_Q_4K
 594         },
 595         {
 596                 /* Samsung Advanced Format (4k) drives */
 597                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 598                 /*quirks*/DA_Q_4K
 599         },
 600         {
 601                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 602                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 603                 /*quirks*/DA_Q_4K
 604         },
 605         {
 606                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 607                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 608                 /*quirks*/DA_Q_4K
 609         },
 610         {
 611                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 612                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 613                 /*quirks*/DA_Q_4K
 614         },
 615         {
 616                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 617                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 618                 /*quirks*/DA_Q_4K
 619         },
 620         {
 621                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 622                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 623                 /*quirks*/DA_Q_4K
 624         },
 625         {
 626                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 627                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 628                 /*quirks*/DA_Q_4K
 629         },
 630         {
 631                 /* Seagate Momentus Advanced Format (4k) drives */
 632                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 633                 /*quirks*/DA_Q_4K
 634         },
 635         {
 636                 /* Seagate Momentus Advanced Format (4k) drives */
 637                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 638                 /*quirks*/DA_Q_4K
 639         },
 640         {
 641                 /* Seagate Momentus Advanced Format (4k) drives */
 642                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 643                 /*quirks*/DA_Q_4K
 644         },
 645         {
 646                 /* Seagate Momentus Advanced Format (4k) drives */
 647                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 648                 /*quirks*/DA_Q_4K
 649         },
 650         {
 651                 /* Seagate Momentus Advanced Format (4k) drives */
 652                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 653                 /*quirks*/DA_Q_4K
 654         },
 655         {
 656                 /* Seagate Momentus Advanced Format (4k) drives */
 657                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 658                 /*quirks*/DA_Q_4K
 659         },
 660         {
 661                 /* Seagate Momentus Advanced Format (4k) drives */
 662                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 663                 /*quirks*/DA_Q_4K
 664         },
 665         {
 666                 /* Seagate Momentus Advanced Format (4k) drives */
 667                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 668                 /*quirks*/DA_Q_4K
 669         },
 670         {
 671                 /* Seagate Momentus Advanced Format (4k) drives */
 672                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 673                 /*quirks*/DA_Q_4K
 674         },
 675         {
 676                 /* Seagate Momentus Advanced Format (4k) drives */
 677                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 678                 /*quirks*/DA_Q_4K
 679         },
 680         {
 681                 /* Seagate Momentus Advanced Format (4k) drives */
 682                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 683                 /*quirks*/DA_Q_4K
 684         },
 685         {
 686                 /* Seagate Momentus Advanced Format (4k) drives */
 687                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 688                 /*quirks*/DA_Q_4K
 689         },
 690         {
 691                 /* Seagate Momentus Advanced Format (4k) drives */
 692                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 693                 /*quirks*/DA_Q_4K
 694         },
 695         {
 696                 /* Seagate Momentus Advanced Format (4k) drives */
 697                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 698                 /*quirks*/DA_Q_4K
 699         },
 700         {
 701                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 702                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 703                 /*quirks*/DA_Q_4K
 704         },
 705         {
 706                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 707                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 708                 /*quirks*/DA_Q_4K
 709         },
 710         {
 711                 /* WDC Caviar Green Advanced Format (4k) drives */
 712                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 713                 /*quirks*/DA_Q_4K
 714         },
 715         {
 716                 /* WDC Caviar Green Advanced Format (4k) drives */
 717                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 718                 /*quirks*/DA_Q_4K
 719         },
 720         {
 721                 /* WDC Caviar Green Advanced Format (4k) drives */
 722                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 723                 /*quirks*/DA_Q_4K
 724         },
 725         {
 726                 /* WDC Caviar Green Advanced Format (4k) drives */
 727                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 728                 /*quirks*/DA_Q_4K
 729         },
 730         {
 731                 /* WDC Caviar Green Advanced Format (4k) drives */
 732                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 733                 /*quirks*/DA_Q_4K
 734         },
 735         {
 736                 /* WDC Caviar Green Advanced Format (4k) drives */
 737                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 738                 /*quirks*/DA_Q_4K
 739         },
 740         {
 741                 /* WDC Caviar Green Advanced Format (4k) drives */
 742                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 743                 /*quirks*/DA_Q_4K
 744         },
 745         {
 746                 /* WDC Caviar Green Advanced Format (4k) drives */
 747                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 748                 /*quirks*/DA_Q_4K
 749         },
 750         {
 751                 /* WDC Scorpio Black Advanced Format (4k) drives */
 752                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 753                 /*quirks*/DA_Q_4K
 754         },
 755         {
 756                 /* WDC Scorpio Black Advanced Format (4k) drives */
 757                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 758                 /*quirks*/DA_Q_4K
 759         },
 760         {
 761                 /* WDC Scorpio Black Advanced Format (4k) drives */
 762                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 763                 /*quirks*/DA_Q_4K
 764         },
 765         {
 766                 /* WDC Scorpio Black Advanced Format (4k) drives */
 767                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 768                 /*quirks*/DA_Q_4K
 769         },
 770         {
 771                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 772                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 773                 /*quirks*/DA_Q_4K
 774         },
 775         {
 776                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 777                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 778                 /*quirks*/DA_Q_4K
 779         },
 780         {
 781                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 782                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 783                 /*quirks*/DA_Q_4K
 784         },
 785         {
 786                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 787                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 788                 /*quirks*/DA_Q_4K
 789         },
 790         {
 791                 /*
 792                  * Olympus FE-210 camera
 793                  */
 794                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 795                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 796         },
 797         {
 798                 /*
 799                  * LG UP3S MP3 player
 800                  */
 801                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 802                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 803         },
 804         {
 805                 /*
 806                  * Laser MP3-2GA13 MP3 player
 807                  */
 808                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 809                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 810         },
 811 };
 812
 813 static  disk_strategy_t dastrategy;
 814 static  dumper_t        dadump;
 815 static  periph_init_t   dainit;
 816 static  void            daasync(void *callback_arg, u_int32_t code,
 817                                 struct cam_path *path, void *arg);
 818 static  void            dasysctlinit(void *context, int pending);
 819 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 820 static  periph_ctor_t   daregister;
 821 static  periph_dtor_t   dacleanup;
 822 static  periph_start_t  dastart;
 823 static  periph_oninv_t  daoninvalidate;
 824 static  void            dadone(struct cam_periph *periph,
 825                                union ccb *done_ccb);
 826 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 827                                 u_int32_t sense_flags);
 828 static void             daprevent(struct cam_periph *periph, int action);
 829 static int              dagetcapacity(struct cam_periph *periph);
 830 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 831                                   uint64_t maxsector, u_int lbppbe, u_int lalba);
 832 static timeout_t        dasendorderedtag;
 833 static void             dashutdown(void *arg, int howto);
 834
 835 #ifndef DA_DEFAULT_TIMEOUT
 836 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 837 #endif
 838
 839 #ifndef DA_DEFAULT_RETRY
 840 #define DA_DEFAULT_RETRY        4
 841 #endif
 842
 843 #ifndef DA_DEFAULT_SEND_ORDERED
 844 #define DA_DEFAULT_SEND_ORDERED 1
 845 #endif
 846
 847
 848 static int da_retry_count = DA_DEFAULT_RETRY;
 849 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 850 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 851
 852 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 853             "CAM Direct Access Disk driver");
 854 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 855            &da_retry_count, 0, "Normal I/O retry count");
 856 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 857 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 858            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 859 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 860 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
 861            &da_send_ordered, 0, "Send Ordered Tags");
 862 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
 863
 864 /*
 865  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 866  * to the default timeout, we check to see whether an ordered
 867  * tagged transaction is appropriate to prevent simple tag
 868  * starvation.  Since we'd like to ensure that there is at least
 869  * 1/2 of the timeout length left for a starved transaction to
 870  * complete after we've sent an ordered tag, we must poll at least
 871  * four times in every timeout period.  This takes care of the worst
 872  * case where a starved transaction starts during an interval that
 873  * meets the requirement "don't send an ordered tag" test so it takes
 874  * us two intervals to determine that a tag must be sent.
 875  */
 876 #ifndef DA_ORDEREDTAG_INTERVAL
 877 #define DA_ORDEREDTAG_INTERVAL 4
 878 #endif
 879
 880 static struct periph_driver dadriver =
 881 {
 882         dainit, "da",
 883         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 884 };
 885
 886 PERIPHDRIVER_DECLARE(da, dadriver);
 887
 888 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 889
 890 static int
 891 daopen(struct disk *dp)
 892 {
 893         struct cam_periph *periph;
 894         struct da_softc *softc;
 895         int unit;
 896         int error;
 897
 898         periph = (struct cam_periph *)dp->d_drv1;
 899         if (periph == NULL) {
 900                 return (ENXIO);
 901         }
 902
 903         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 904                 return (ENXIO);
 905         }
 906
 907         cam_periph_lock(periph);
 908         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 909                 cam_periph_unlock(periph);
 910                 cam_periph_release(periph);
 911                 return (error);
 912         }
 913
 914         unit = periph->unit_number;
 915         softc = (struct da_softc *)periph->softc;
 916         softc->flags |= DA_FLAG_OPEN;
 917
 918         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
 919             ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
 920              unit));
 921
 922         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 923                 /* Invalidate our pack information. */
 924                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 925         }
 926
 927         error = dagetcapacity(periph);
 928
 929         if (error == 0) {
 930
 931                 softc->disk->d_sectorsize = softc->params.secsize;
 932                 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
 933                 softc->disk->d_stripesize = softc->params.stripesize;
 934                 softc->disk->d_stripeoffset = softc->params.stripeoffset;
 935                 /* XXX: these are not actually "firmware" values, so they may be wrong */
 936                 softc->disk->d_fwsectors = softc->params.secs_per_track;
 937                 softc->disk->d_fwheads = softc->params.heads;
 938                 softc->disk->d_devstat->block_size = softc->params.secsize;
 939                 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
 940
 941                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 942                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
 943                         daprevent(periph, PR_PREVENT);
 944         } else
 945                 softc->flags &= ~DA_FLAG_OPEN;
 946
 947         cam_periph_unhold(periph);
 948         cam_periph_unlock(periph);
 949
 950         if (error != 0) {
 951                 cam_periph_release(periph);
 952         }
 953         return (error);
 954 }
 955
 956 static int
 957 daclose(struct disk *dp)
 958 {
 959         struct  cam_periph *periph;
 960         struct  da_softc *softc;
 961         int error;
 962
 963         periph = (struct cam_periph *)dp->d_drv1;
 964         if (periph == NULL)
 965                 return (0);
 966
 967         cam_periph_lock(periph);
 968         if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
 969                 cam_periph_unlock(periph);
 970                 cam_periph_release(periph);
 971                 return (0);
 972         }
 973
 974         softc = (struct da_softc *)periph->softc;
 975
 976         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0
 977          && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
 978                 union   ccb *ccb;
 979
 980                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 981
 982                 scsi_synchronize_cache(&ccb->csio,
 983                                        /*retries*/1,
 984                                        /*cbfcnp*/dadone,
 985                                        MSG_SIMPLE_Q_TAG,
 986                                        /*begin_lba*/0,/* Cover the whole disk */
 987                                        /*lb_count*/0,
 988                                        SSD_FULL_SIZE,
 989                                        5 * 60 * 1000);
 990
 991                 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
 992                                   /*sense_flags*/SF_RETRY_UA,
 993                                   softc->disk->d_devstat);
 994
 995                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 996                         if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
 997                              CAM_SCSI_STATUS_ERROR) {
 998                                 int asc, ascq;
 999                                 int sense_key, error_code;
1000
1001                                 scsi_extract_sense_len(&ccb->csio.sense_data,
1002                                     ccb->csio.sense_len - ccb->csio.sense_resid,
1003                                     &error_code, &sense_key, &asc, &ascq,
1004                                     /*show_errors*/ 1);
1005                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1006                                         scsi_sense_print(&ccb->csio);
1007                         } else {
1008                                 xpt_print(periph->path, "Synchronize cache "
1009                                     "failed, status == 0x%x, scsi status == "
1010                                     "0x%x\n", ccb->csio.ccb_h.status,
1011                                     ccb->csio.scsi_status);
1012                         }
1013                 }
1014
1015                 xpt_release_ccb(ccb);
1016
1017         }
1018
1019         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
1020                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1021                         daprevent(periph, PR_ALLOW);
1022                 /*
1023                  * If we've got removeable media, mark the blocksize as
1024                  * unavailable, since it could change when new media is
1025                  * inserted.
1026                  */
1027                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1028         }
1029
1030         softc->flags &= ~DA_FLAG_OPEN;
1031         cam_periph_unhold(periph);
1032         cam_periph_unlock(periph);
1033         cam_periph_release(periph);
1034         return (0);
1035 }
1036
1037 /*
1038  * Actually translate the requested transfer into one the physical driver
1039  * can understand.  The transfer is described by a buf and will include
1040  * only one physical transfer.
1041  */
1042 static void
1043 dastrategy(struct bio *bp)
1044 {
1045         struct cam_periph *periph;
1046         struct da_softc *softc;
1047
1048         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1049         if (periph == NULL) {
1050                 biofinish(bp, NULL, ENXIO);
1051                 return;
1052         }
1053         softc = (struct da_softc *)periph->softc;
1054
1055         cam_periph_lock(periph);
1056
1057         /*
1058          * If the device has been made invalid, error out
1059          */
1060         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1061                 cam_periph_unlock(periph);
1062                 biofinish(bp, NULL, ENXIO);
1063                 return;
1064         }
1065
1066         /*
1067          * Place it in the queue of disk activities for this disk
1068          */
1069         bioq_disksort(&softc->bio_queue, bp);
1070
1071         /*
1072          * Schedule ourselves for performing the work.
1073          */
1074         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1075         cam_periph_unlock(periph);
1076
1077         return;
1078 }
1079
1080 static int
1081 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1082 {
1083         struct      cam_periph *periph;
1084         struct      da_softc *softc;
1085         u_int       secsize;
1086         struct      ccb_scsiio csio;
1087         struct      disk *dp;
1088
1089         dp = arg;
1090         periph = dp->d_drv1;
1091         if (periph == NULL)
1092                 return (ENXIO);
1093         softc = (struct da_softc *)periph->softc;
1094         cam_periph_lock(periph);
1095         secsize = softc->params.secsize;
1096
1097         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1098                 cam_periph_unlock(periph);
1099                 return (ENXIO);
1100         }
1101
1102         if (length > 0) {
1103                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1104                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1105                 scsi_read_write(&csio,
1106                                 /*retries*/1,
1107                                 dadone,
1108                                 MSG_ORDERED_Q_TAG,
1109                                 /*read*/FALSE,
1110                                 /*byte2*/0,
1111                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1112                                 offset / secsize,
1113                                 length / secsize,
1114                                 /*data_ptr*/(u_int8_t *) virtual,
1115                                 /*dxfer_len*/length,
1116                                 /*sense_len*/SSD_FULL_SIZE,
1117                                 da_default_timeout * 1000);
1118                 xpt_polled_action((union ccb *)&csio);
1119                 cam_periph_unlock(periph);
1120
1121                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1122                         printf("Aborting dump due to I/O error.\n");
1123                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1124                              CAM_SCSI_STATUS_ERROR)
1125                                 scsi_sense_print(&csio);
1126                         else
1127                                 printf("status == 0x%x, scsi status == 0x%x\n",
1128                                        csio.ccb_h.status, csio.scsi_status);
1129                         return(EIO);
1130                 }
1131                 return(0);
1132         }
1133
1134         /*
1135          * Sync the disk cache contents to the physical media.
1136          */
1137         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1138
1139                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1140                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1141                 scsi_synchronize_cache(&csio,
1142                                        /*retries*/1,
1143                                        /*cbfcnp*/dadone,
1144                                        MSG_SIMPLE_Q_TAG,
1145                                        /*begin_lba*/0,/* Cover the whole disk */
1146                                        /*lb_count*/0,
1147                                        SSD_FULL_SIZE,
1148                                        5 * 60 * 1000);
1149                 xpt_polled_action((union ccb *)&csio);
1150
1151                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1152                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1153                              CAM_SCSI_STATUS_ERROR) {
1154                                 int asc, ascq;
1155                                 int sense_key, error_code;
1156
1157                                 scsi_extract_sense_len(&csio.sense_data,
1158                                     csio.sense_len - csio.sense_resid,
1159                                     &error_code, &sense_key, &asc, &ascq,
1160                                     /*show_errors*/ 1);
1161                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1162                                         scsi_sense_print(&csio);
1163                         } else {
1164                                 xpt_print(periph->path, "Synchronize cache "
1165                                     "failed, status == 0x%x, scsi status == "
1166                                     "0x%x\n", csio.ccb_h.status,
1167                                     csio.scsi_status);
1168                         }
1169                 }
1170         }
1171         cam_periph_unlock(periph);
1172         return (0);
1173 }
1174
1175 static int
1176 dagetattr(struct bio *bp)
1177 {
1178         int ret = -1;
1179         struct cam_periph *periph;
1180
1181         if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)
1182                 return ENXIO;
1183         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1184         if (periph->path == NULL)
1185                 return ENXIO;
1186
1187         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1188             periph->path);
1189         if (ret == 0)
1190                 bp->bio_completed = bp->bio_length;
1191         return ret;
1192 }
1193
1194 static void
1195 dainit(void)
1196 {
1197         cam_status status;
1198
1199         /*
1200          * Install a global async callback.  This callback will
1201          * receive async callbacks like "new device found".
1202          */
1203         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1204
1205         if (status != CAM_REQ_CMP) {
1206                 printf("da: Failed to attach master async callback "
1207                        "due to status 0x%x!\n", status);
1208         } else if (da_send_ordered) {
1209
1210                 /* Register our shutdown event handler */
1211                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1212                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1213                     printf("dainit: shutdown event registration failed!\n");
1214         }
1215 }
1216
1217 static void
1218 daoninvalidate(struct cam_periph *periph)
1219 {
1220         struct da_softc *softc;
1221
1222         softc = (struct da_softc *)periph->softc;
1223
1224         /*
1225          * De-register any async callbacks.
1226          */
1227         xpt_register_async(0, daasync, periph, periph->path);
1228
1229         softc->flags |= DA_FLAG_PACK_INVALID;
1230
1231         /*
1232          * Return all queued I/O with ENXIO.
1233          * XXX Handle any transactions queued to the card
1234          *     with XPT_ABORT_CCB.
1235          */
1236         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1237
1238         disk_gone(softc->disk);
1239         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1240                   softc->outstanding_cmds, periph->refcount);
1241 }
1242
1243 static void
1244 dacleanup(struct cam_periph *periph)
1245 {
1246         struct da_softc *softc;
1247
1248         softc = (struct da_softc *)periph->softc;
1249
1250         xpt_print(periph->path, "removing device entry\n");
1251         cam_periph_unlock(periph);
1252
1253         /*
1254          * If we can't free the sysctl tree, oh well...
1255          */
1256         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1257             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1258                 xpt_print(periph->path, "can't remove sysctl context\n");
1259         }
1260
1261         disk_destroy(softc->disk);
1262         callout_drain(&softc->sendordered_c);
1263         free(softc, M_DEVBUF);
1264         cam_periph_lock(periph);
1265 }
1266
1267 static void
1268 daasync(void *callback_arg, u_int32_t code,
1269         struct cam_path *path, void *arg)
1270 {
1271         struct cam_periph *periph;
1272
1273         periph = (struct cam_periph *)callback_arg;
1274         switch (code) {
1275         case AC_FOUND_DEVICE:
1276         {
1277                 struct ccb_getdev *cgd;
1278                 cam_status status;
1279
1280                 cgd = (struct ccb_getdev *)arg;
1281                 if (cgd == NULL)
1282                         break;
1283
1284                 if (cgd->protocol != PROTO_SCSI)
1285                         break;
1286
1287                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1288                     && SID_TYPE(&cgd->inq_data) != T_RBC
1289                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1290                         break;
1291
1292                 /*
1293                  * Allocate a peripheral instance for
1294                  * this device and start the probe
1295                  * process.
1296                  */
1297                 status = cam_periph_alloc(daregister, daoninvalidate,
1298                                           dacleanup, dastart,
1299                                           "da", CAM_PERIPH_BIO,
1300                                           cgd->ccb_h.path, daasync,
1301                                           AC_FOUND_DEVICE, cgd);
1302
1303                 if (status != CAM_REQ_CMP
1304                  && status != CAM_REQ_INPROG)
1305                         printf("daasync: Unable to attach to new device "
1306                                 "due to status 0x%x\n", status);
1307                 return;
1308         }
1309         case AC_ADVINFO_CHANGED:
1310         {
1311                 uintptr_t buftype;
1312
1313                 buftype = (uintptr_t)arg;
1314                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1315                         struct da_softc *softc;
1316
1317                         softc = periph->softc;
1318                         disk_attr_changed(softc->disk, "GEOM::physpath",
1319                                           M_NOWAIT);
1320                 }
1321                 break;
1322         }
1323         case AC_SENT_BDR:
1324         case AC_BUS_RESET:
1325         {
1326                 struct da_softc *softc;
1327                 struct ccb_hdr *ccbh;
1328
1329                 softc = (struct da_softc *)periph->softc;
1330                 /*
1331                  * Don't fail on the expected unit attention
1332                  * that will occur.
1333                  */
1334                 softc->flags |= DA_FLAG_RETRY_UA;
1335                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1336                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1337                 break;
1338         }
1339         default:
1340                 break;
1341         }
1342         cam_periph_async(periph, code, path, arg);
1343 }
1344
1345 static void
1346 dasysctlinit(void *context, int pending)
1347 {
1348         struct cam_periph *periph;
1349         struct da_softc *softc;
1350         char tmpstr[80], tmpstr2[80];
1351         struct ccb_trans_settings cts;
1352
1353         periph = (struct cam_periph *)context;
1354         /*
1355          * periph was held for us when this task was enqueued
1356          */
1357         if (periph->flags & CAM_PERIPH_INVALID) {
1358                 cam_periph_release(periph);
1359                 return;
1360         }
1361
1362         softc = (struct da_softc *)periph->softc;
1363         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1364         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1365
1366         sysctl_ctx_init(&softc->sysctl_ctx);
1367         softc->flags |= DA_FLAG_SCTX_INIT;
1368         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1369                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1370                 CTLFLAG_RD, 0, tmpstr);
1371         if (softc->sysctl_tree == NULL) {
1372                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1373                 cam_periph_release(periph);
1374                 return;
1375         }
1376
1377         /*
1378          * Now register the sysctl handler, so the user can change the value on
1379          * the fly.
1380          */
1381         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1382                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1383                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1384                 "Minimum CDB size");
1385
1386         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1387                        SYSCTL_CHILDREN(softc->sysctl_tree),
1388                        OID_AUTO,
1389                        "error_inject",
1390                        CTLFLAG_RW,
1391                        &softc->error_inject,
1392                        0,
1393                        "error_inject leaf");
1394
1395
1396         /*
1397          * Add some addressing info.
1398          */
1399         memset(&cts, 0, sizeof (cts));
1400         xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1401         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1402         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1403         cam_periph_lock(periph);
1404         xpt_action((union ccb *)&cts);
1405         cam_periph_unlock(periph);
1406         if (cts.ccb_h.status != CAM_REQ_CMP) {
1407                 cam_periph_release(periph);
1408                 return;
1409         }
1410         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1411                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1412                 if (fc->valid & CTS_FC_VALID_WWPN) {
1413                         softc->wwpn = fc->wwpn;
1414                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1415                             SYSCTL_CHILDREN(softc->sysctl_tree),
1416                             OID_AUTO, "wwpn", CTLFLAG_RD,
1417                             &softc->wwpn, "World Wide Port Name");
1418                 }
1419         }
1420         cam_periph_release(periph);
1421 }
1422
1423 static int
1424 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1425 {
1426         int error, value;
1427
1428         value = *(int *)arg1;
1429
1430         error = sysctl_handle_int(oidp, &value, 0, req);
1431
1432         if ((error != 0)
1433          || (req->newptr == NULL))
1434                 return (error);
1435
1436         /*
1437          * Acceptable values here are 6, 10, 12 or 16.
1438          */
1439         if (value < 6)
1440                 value = 6;
1441         else if ((value > 6)
1442               && (value <= 10))
1443                 value = 10;
1444         else if ((value > 10)
1445               && (value <= 12))
1446                 value = 12;
1447         else if (value > 12)
1448                 value = 16;
1449
1450         *(int *)arg1 = value;
1451
1452         return (0);
1453 }
1454
1455 static cam_status
1456 daregister(struct cam_periph *periph, void *arg)
1457 {
1458         struct da_softc *softc;
1459         struct ccb_pathinq cpi;
1460         struct ccb_getdev *cgd;
1461         char tmpstr[80];
1462         caddr_t match;
1463
1464         cgd = (struct ccb_getdev *)arg;
1465         if (periph == NULL) {
1466                 printf("daregister: periph was NULL!!\n");
1467                 return(CAM_REQ_CMP_ERR);
1468         }
1469
1470         if (cgd == NULL) {
1471                 printf("daregister: no getdev CCB, can't register device\n");
1472                 return(CAM_REQ_CMP_ERR);
1473         }
1474
1475         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1476             M_NOWAIT|M_ZERO);
1477
1478         if (softc == NULL) {
1479                 printf("daregister: Unable to probe new device. "
1480                        "Unable to allocate softc\n");
1481                 return(CAM_REQ_CMP_ERR);
1482         }
1483
1484         LIST_INIT(&softc->pending_ccbs);
1485         softc->state = DA_STATE_PROBE;
1486         bioq_init(&softc->bio_queue);
1487         if (SID_IS_REMOVABLE(&cgd->inq_data))
1488                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1489         if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1490                 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1491
1492         periph->softc = softc;
1493
1494         /*
1495          * See if this device has any quirks.
1496          */
1497         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1498                                (caddr_t)da_quirk_table,
1499                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1500                                sizeof(*da_quirk_table), scsi_inquiry_match);
1501
1502         if (match != NULL)
1503                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1504         else
1505                 softc->quirks = DA_Q_NONE;
1506
1507         /* Check if the SIM does not want 6 byte commands */
1508         bzero(&cpi, sizeof(cpi));
1509         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1510         cpi.ccb_h.func_code = XPT_PATH_INQ;
1511         xpt_action((union ccb *)&cpi);
1512         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1513                 softc->quirks |= DA_Q_NO_6_BYTE;
1514
1515         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1516
1517         /*
1518          * Take an exclusive refcount on the periph while dastart is called
1519          * to finish the probe.  The reference will be dropped in dadone at
1520          * the end of probe.
1521          */
1522         (void)cam_periph_hold(periph, PRIBIO);
1523
1524         /*
1525          * Schedule a periodic event to occasionally send an
1526          * ordered tag to a device.
1527          */
1528         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1529         callout_reset(&softc->sendordered_c,
1530             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1531             dasendorderedtag, softc);
1532
1533         mtx_unlock(periph->sim->mtx);
1534         /*
1535          * RBC devices don't have to support READ(6), only READ(10).
1536          */
1537         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1538                 softc->minimum_cmd_size = 10;
1539         else
1540                 softc->minimum_cmd_size = 6;
1541
1542         /*
1543          * Load the user's default, if any.
1544          */
1545         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1546                  periph->unit_number);
1547         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1548
1549         /*
1550          * 6, 10, 12 and 16 are the currently permissible values.
1551          */
1552         if (softc->minimum_cmd_size < 6)
1553                 softc->minimum_cmd_size = 6;
1554         else if ((softc->minimum_cmd_size > 6)
1555               && (softc->minimum_cmd_size <= 10))
1556                 softc->minimum_cmd_size = 10;
1557         else if ((softc->minimum_cmd_size > 10)
1558               && (softc->minimum_cmd_size <= 12))
1559                 softc->minimum_cmd_size = 12;
1560         else if (softc->minimum_cmd_size > 12)
1561                 softc->minimum_cmd_size = 16;
1562
1563         /* Predict whether device may support READ CAPACITY(16). */
1564         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
1565                 softc->flags |= DA_FLAG_CAN_RC16;
1566                 softc->state = DA_STATE_PROBE2;
1567         }
1568
1569         /*
1570          * Register this media as a disk.
1571          */
1572         softc->disk = disk_alloc();
1573         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1574                           periph->unit_number, 0,
1575                           DEVSTAT_BS_UNAVAILABLE,
1576                           SID_TYPE(&cgd->inq_data) |
1577                           XPORT_DEVSTAT_TYPE(cpi.transport),
1578                           DEVSTAT_PRIORITY_DISK);
1579         softc->disk->d_open = daopen;
1580         softc->disk->d_close = daclose;
1581         softc->disk->d_strategy = dastrategy;
1582         softc->disk->d_dump = dadump;
1583         softc->disk->d_getattr = dagetattr;
1584         softc->disk->d_name = "da";
1585         softc->disk->d_drv1 = periph;
1586         if (cpi.maxio == 0)
1587                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1588         else if (cpi.maxio > MAXPHYS)
1589                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1590         else
1591                 softc->disk->d_maxsize = cpi.maxio;
1592         softc->disk->d_unit = periph->unit_number;
1593         softc->disk->d_flags = 0;
1594         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1595                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1596         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1597             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1598         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1599         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1600             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1601             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1602         softc->disk->d_hba_vendor = cpi.hba_vendor;
1603         softc->disk->d_hba_device = cpi.hba_device;
1604         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1605         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1606         disk_create(softc->disk, DISK_VERSION);
1607         mtx_lock(periph->sim->mtx);
1608
1609         /*
1610          * Add async callbacks for events of interest.
1611          * I don't bother checking if this fails as,
1612          * in most cases, the system will function just
1613          * fine without them and the only alternative
1614          * would be to not attach the device on failure.
1615          */
1616         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET
1617                          | AC_LOST_DEVICE | AC_ADVINFO_CHANGED,
1618                            daasync, periph, periph->path);
1619
1620         /*
1621          * Emit an attribute changed notification just in case
1622          * physical path information arrived before our async
1623          * event handler was registered, but after anyone attaching
1624          * to our disk device polled it.
1625          */
1626         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
1627
1628         xpt_schedule(periph, CAM_PRIORITY_DEV);
1629
1630         return(CAM_REQ_CMP);
1631 }
1632
1633 static void
1634 dastart(struct cam_periph *periph, union ccb *start_ccb)
1635 {
1636         struct da_softc *softc;
1637
1638         softc = (struct da_softc *)periph->softc;
1639
1640         switch (softc->state) {
1641         case DA_STATE_NORMAL:
1642         {
1643                 /* Pull a buffer from the queue and get going on it */
1644                 struct bio *bp;
1645
1646                 /*
1647                  * See if there is a buf with work for us to do..
1648                  */
1649                 bp = bioq_first(&softc->bio_queue);
1650                 if (periph->immediate_priority <= periph->pinfo.priority) {
1651                         CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1652                                         ("queuing for immediate ccb\n"));
1653                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1654                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1655                                           periph_links.sle);
1656                         periph->immediate_priority = CAM_PRIORITY_NONE;
1657                         wakeup(&periph->ccb_list);
1658                 } else if (bp == NULL) {
1659                         xpt_release_ccb(start_ccb);
1660                 } else {
1661                         u_int8_t tag_code;
1662
1663                         bioq_remove(&softc->bio_queue, bp);
1664
1665                         if ((bp->bio_flags & BIO_ORDERED) != 0
1666                          || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1667                                 softc->flags &= ~DA_FLAG_NEED_OTAG;
1668                                 softc->ordered_tag_count++;
1669                                 tag_code = MSG_ORDERED_Q_TAG;
1670                         } else {
1671                                 tag_code = MSG_SIMPLE_Q_TAG;
1672                         }
1673                         switch (bp->bio_cmd) {
1674                         case BIO_READ:
1675                         case BIO_WRITE:
1676                                 scsi_read_write(&start_ccb->csio,
1677                                                 /*retries*/da_retry_count,
1678                                                 /*cbfcnp*/dadone,
1679                                                 /*tag_action*/tag_code,
1680                                                 /*read_op*/bp->bio_cmd
1681                                                         == BIO_READ,
1682                                                 /*byte2*/0,
1683                                                 softc->minimum_cmd_size,
1684                                                 /*lba*/bp->bio_pblkno,
1685                                                 /*block_count*/bp->bio_bcount /
1686                                                 softc->params.secsize,
1687                                                 /*data_ptr*/ bp->bio_data,
1688                                                 /*dxfer_len*/ bp->bio_bcount,
1689                                                 /*sense_len*/SSD_FULL_SIZE,
1690                                                 da_default_timeout * 1000);
1691                                 break;
1692                         case BIO_FLUSH:
1693                                 /*
1694                                  * BIO_FLUSH doesn't currently communicate
1695                                  * range data, so we synchronize the cache
1696                                  * over the whole disk.  We also force
1697                                  * ordered tag semantics the flush applies
1698                                  * to all previously queued I/O.
1699                                  */
1700                                 scsi_synchronize_cache(&start_ccb->csio,
1701                                                        /*retries*/1,
1702                                                        /*cbfcnp*/dadone,
1703                                                        MSG_ORDERED_Q_TAG,
1704                                                        /*begin_lba*/0,
1705                                                        /*lb_count*/0,
1706                                                        SSD_FULL_SIZE,
1707                                                        da_default_timeout*1000);
1708                                 break;
1709                         }
1710                         start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1711
1712                         /*
1713                          * Block out any asyncronous callbacks
1714                          * while we touch the pending ccb list.
1715                          */
1716                         LIST_INSERT_HEAD(&softc->pending_ccbs,
1717                                          &start_ccb->ccb_h, periph_links.le);
1718                         softc->outstanding_cmds++;
1719
1720                         /* We expect a unit attention from this device */
1721                         if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1722                                 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1723                                 softc->flags &= ~DA_FLAG_RETRY_UA;
1724                         }
1725
1726                         start_ccb->ccb_h.ccb_bp = bp;
1727                         bp = bioq_first(&softc->bio_queue);
1728
1729                         xpt_action(start_ccb);
1730                 }
1731
1732                 if (bp != NULL) {
1733                         /* Have more work to do, so ensure we stay scheduled */
1734                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1735                 }
1736                 break;
1737         }
1738         case DA_STATE_PROBE:
1739         {
1740                 struct ccb_scsiio *csio;
1741                 struct scsi_read_capacity_data *rcap;
1742
1743                 rcap = (struct scsi_read_capacity_data *)
1744                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1745                 if (rcap == NULL) {
1746                         printf("dastart: Couldn't malloc read_capacity data\n");
1747                         /* da_free_periph??? */
1748                         break;
1749                 }
1750                 csio = &start_ccb->csio;
1751                 scsi_read_capacity(csio,
1752                                    /*retries*/4,
1753                                    dadone,
1754                                    MSG_SIMPLE_Q_TAG,
1755                                    rcap,
1756                                    SSD_FULL_SIZE,
1757                                    /*timeout*/5000);
1758                 start_ccb->ccb_h.ccb_bp = NULL;
1759                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1760                 xpt_action(start_ccb);
1761                 break;
1762         }
1763         case DA_STATE_PROBE2:
1764         {
1765                 struct ccb_scsiio *csio;
1766                 struct scsi_read_capacity_data_long *rcaplong;
1767
1768                 rcaplong = (struct scsi_read_capacity_data_long *)
1769                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1770                 if (rcaplong == NULL) {
1771                         printf("dastart: Couldn't malloc read_capacity data\n");
1772                         /* da_free_periph??? */
1773                         break;
1774                 }
1775                 csio = &start_ccb->csio;
1776                 scsi_read_capacity_16(csio,
1777                                       /*retries*/ 4,
1778                                       /*cbfcnp*/ dadone,
1779                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
1780                                       /*lba*/ 0,
1781                                       /*reladr*/ 0,
1782                                       /*pmi*/ 0,
1783                                       rcaplong,
1784                                       /*sense_len*/ SSD_FULL_SIZE,
1785                                       /*timeout*/ 60000);
1786                 start_ccb->ccb_h.ccb_bp = NULL;
1787                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1788                 xpt_action(start_ccb);
1789                 break;
1790         }
1791         }
1792 }
1793
1794 static int
1795 cmd6workaround(union ccb *ccb)
1796 {
1797         struct scsi_rw_6 cmd6;
1798         struct scsi_rw_10 *cmd10;
1799         struct da_softc *softc;
1800         u_int8_t *cdb;
1801         int frozen;
1802
1803         cdb = ccb->csio.cdb_io.cdb_bytes;
1804
1805         /* Translation only possible if CDB is an array and cmd is R/W6 */
1806         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1807             (*cdb != READ_6 && *cdb != WRITE_6))
1808                 return 0;
1809
1810         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1811             "increasing minimum_cmd_size to 10.\n");
1812         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1813         softc->minimum_cmd_size = 10;
1814
1815         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1816         cmd10 = (struct scsi_rw_10 *)cdb;
1817         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1818         cmd10->byte2 = 0;
1819         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1820         cmd10->reserved = 0;
1821         scsi_ulto2b(cmd6.length, cmd10->length);
1822         cmd10->control = cmd6.control;
1823         ccb->csio.cdb_len = sizeof(*cmd10);
1824
1825         /* Requeue request, unfreezing queue if necessary */
1826         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1827         ccb->ccb_h.status = CAM_REQUEUE_REQ;
1828         xpt_action(ccb);
1829         if (frozen) {
1830                 cam_release_devq(ccb->ccb_h.path,
1831                                  /*relsim_flags*/0,
1832                                  /*reduction*/0,
1833                                  /*timeout*/0,
1834                                  /*getcount_only*/0);
1835         }
1836         return (ERESTART);
1837 }
1838
1839 static void
1840 dadone(struct cam_periph *periph, union ccb *done_ccb)
1841 {
1842         struct da_softc *softc;
1843         struct ccb_scsiio *csio;
1844         u_int32_t  priority;
1845
1846         softc = (struct da_softc *)periph->softc;
1847         priority = done_ccb->ccb_h.pinfo.priority;
1848         csio = &done_ccb->csio;
1849         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1850         case DA_CCB_BUFFER_IO:
1851         {
1852                 struct bio *bp;
1853
1854                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1855                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1856                         int error;
1857                         int sf;
1858
1859                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1860                                 sf = SF_RETRY_UA;
1861                         else
1862                                 sf = 0;
1863
1864                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1865                         if (error == ERESTART) {
1866                                 /*
1867                                  * A retry was scheuled, so
1868                                  * just return.
1869                                  */
1870                                 return;
1871                         }
1872                         if (error != 0) {
1873                                 int queued_error;
1874
1875                                 /*
1876                                  * return all queued I/O with EIO, so that
1877                                  * the client can retry these I/Os in the
1878                                  * proper order should it attempt to recover.
1879                                  */
1880                                 queued_error = EIO;
1881
1882                                 if (error == ENXIO
1883                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
1884                                         /*
1885                                          * Catastrophic error.  Mark our pack as
1886                                          * invalid.
1887                                          */
1888                                         /*
1889                                          * XXX See if this is really a media
1890                                          * XXX change first?
1891                                          */
1892                                         xpt_print(periph->path,
1893                                             "Invalidating pack\n");
1894                                         softc->flags |= DA_FLAG_PACK_INVALID;
1895                                         queued_error = ENXIO;
1896                                 }
1897                                 bioq_flush(&softc->bio_queue, NULL,
1898                                            queued_error);
1899                                 bp->bio_error = error;
1900                                 bp->bio_resid = bp->bio_bcount;
1901                                 bp->bio_flags |= BIO_ERROR;
1902                         } else {
1903                                 bp->bio_resid = csio->resid;
1904                                 bp->bio_error = 0;
1905                                 if (bp->bio_resid != 0)
1906                                         bp->bio_flags |= BIO_ERROR;
1907                         }
1908                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1909                                 cam_release_devq(done_ccb->ccb_h.path,
1910                                                  /*relsim_flags*/0,
1911                                                  /*reduction*/0,
1912                                                  /*timeout*/0,
1913                                                  /*getcount_only*/0);
1914                 } else {
1915                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1916                                 panic("REQ_CMP with QFRZN");
1917                         bp->bio_resid = csio->resid;
1918                         if (csio->resid > 0)
1919                                 bp->bio_flags |= BIO_ERROR;
1920                         if (softc->error_inject != 0) {
1921                                 bp->bio_error = softc->error_inject;
1922                                 bp->bio_resid = bp->bio_bcount;
1923                                 bp->bio_flags |= BIO_ERROR;
1924                                 softc->error_inject = 0;
1925                         }
1926
1927                 }
1928
1929                 /*
1930                  * Block out any asyncronous callbacks
1931                  * while we touch the pending ccb list.
1932                  */
1933                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1934                 softc->outstanding_cmds--;
1935                 if (softc->outstanding_cmds == 0)
1936                         softc->flags |= DA_FLAG_WENT_IDLE;
1937
1938                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1939                         xpt_print(periph->path, "oustanding %d\n",
1940                                   softc->outstanding_cmds);
1941                 }
1942
1943                 biodone(bp);
1944                 break;
1945         }
1946         case DA_CCB_PROBE:
1947         case DA_CCB_PROBE2:
1948         {
1949                 struct     scsi_read_capacity_data *rdcap;
1950                 struct     scsi_read_capacity_data_long *rcaplong;
1951                 char       announce_buf[80];
1952
1953                 rdcap = NULL;
1954                 rcaplong = NULL;
1955                 if (softc->state == DA_STATE_PROBE)
1956                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1957                 else
1958                         rcaplong = (struct scsi_read_capacity_data_long *)
1959                                 csio->data_ptr;
1960
1961                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1962                         struct disk_params *dp;
1963                         uint32_t block_size;
1964                         uint64_t maxsector;
1965                         u_int lbppbe;   /* LB per physical block exponent. */
1966                         u_int lalba;    /* Lowest aligned LBA. */
1967
1968                         if (softc->state == DA_STATE_PROBE) {
1969                                 block_size = scsi_4btoul(rdcap->length);
1970                                 maxsector = scsi_4btoul(rdcap->addr);
1971                                 lbppbe = 0;
1972                                 lalba = 0;
1973
1974                                 /*
1975                                  * According to SBC-2, if the standard 10
1976                                  * byte READ CAPACITY command returns 2^32,
1977                                  * we should issue the 16 byte version of
1978                                  * the command, since the device in question
1979                                  * has more sectors than can be represented
1980                                  * with the short version of the command.
1981                                  */
1982                                 if (maxsector == 0xffffffff) {
1983                                         softc->state = DA_STATE_PROBE2;
1984                                         free(rdcap, M_SCSIDA);
1985                                         xpt_release_ccb(done_ccb);
1986                                         xpt_schedule(periph, priority);
1987                                         return;
1988                                 }
1989                         } else {
1990                                 block_size = scsi_4btoul(rcaplong->length);
1991                                 maxsector = scsi_8btou64(rcaplong->addr);
1992                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
1993                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
1994                         }
1995
1996                         /*
1997                          * Because GEOM code just will panic us if we
1998                          * give them an 'illegal' value we'll avoid that
1999                          * here.
2000                          */
2001                         if (block_size == 0 && maxsector == 0) {
2002                                 snprintf(announce_buf, sizeof(announce_buf),
2003                                         "0MB (no media?)");
2004                         } else if (block_size >= MAXPHYS || block_size == 0) {
2005                                 xpt_print(periph->path,
2006                                     "unsupportable block size %ju\n",
2007                                     (uintmax_t) block_size);
2008                                 announce_buf[0] = '\0';
2009                                 cam_periph_invalidate(periph);
2010                         } else {
2011                                 dasetgeom(periph, block_size, maxsector,
2012                                     lbppbe, lalba & SRC16_LALBA);
2013                                 if (lalba & SRC16_LBPME)
2014                                         softc->flags |= DA_FLAG_CAN_LBPME;
2015                                 else
2016                                         softc->flags &= ~DA_FLAG_CAN_LBPME;
2017                                 dp = &softc->params;
2018                                 snprintf(announce_buf, sizeof(announce_buf),
2019                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
2020                                         "%dC)", (uintmax_t)
2021                                         (((uintmax_t)dp->secsize *
2022                                         dp->sectors) / (1024*1024)),
2023                                         (uintmax_t)dp->sectors,
2024                                         dp->secsize, dp->heads,
2025                                         dp->secs_per_track, dp->cylinders);
2026                         }
2027                 } else {
2028                         int     error;
2029
2030                         announce_buf[0] = '\0';
2031
2032                         /*
2033                          * Retry any UNIT ATTENTION type errors.  They
2034                          * are expected at boot.
2035                          */
2036                         error = daerror(done_ccb, CAM_RETRY_SELTO,
2037                                         SF_RETRY_UA|SF_NO_PRINT);
2038                         if (error == ERESTART) {
2039                                 /*
2040                                  * A retry was scheuled, so
2041                                  * just return.
2042                                  */
2043                                 return;
2044                         } else if (error != 0) {
2045                                 struct scsi_sense_data *sense;
2046                                 int asc, ascq;
2047                                 int sense_key, error_code;
2048                                 int have_sense;
2049                                 cam_status status;
2050                                 struct ccb_getdev cgd;
2051
2052                                 /* Don't wedge this device's queue */
2053                                 status = done_ccb->ccb_h.status;
2054                                 if ((status & CAM_DEV_QFRZN) != 0)
2055                                         cam_release_devq(done_ccb->ccb_h.path,
2056                                                          /*relsim_flags*/0,
2057                                                          /*reduction*/0,
2058                                                          /*timeout*/0,
2059                                                          /*getcount_only*/0);
2060
2061
2062                                 xpt_setup_ccb(&cgd.ccb_h,
2063                                               done_ccb->ccb_h.path,
2064                                               CAM_PRIORITY_NORMAL);
2065                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2066                                 xpt_action((union ccb *)&cgd);
2067
2068                                 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
2069                                  || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
2070                                  || ((status & CAM_AUTOSNS_VALID) == 0))
2071                                         have_sense = FALSE;
2072                                 else
2073                                         have_sense = TRUE;
2074
2075                                 if (have_sense) {
2076                                         sense = &csio->sense_data;
2077                                         scsi_extract_sense_len(sense,
2078                                             csio->sense_len - csio->sense_resid,
2079                                             &error_code, &sense_key, &asc,
2080                                             &ascq, /*show_errors*/ 1);
2081                                 }
2082                                 /*
2083                                  * If we tried READ CAPACITY(16) and failed,
2084                                  * fallback to READ CAPACITY(10).
2085                                  */
2086                                 if ((softc->state == DA_STATE_PROBE2) &&
2087                                     (softc->flags & DA_FLAG_CAN_RC16) &&
2088                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
2089                                         CAM_REQ_INVALID) ||
2090                                      ((have_sense) &&
2091                                       (error_code == SSD_CURRENT_ERROR) &&
2092                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
2093                                         softc->flags &= ~DA_FLAG_CAN_RC16;
2094                                         softc->state = DA_STATE_PROBE;
2095                                         free(rdcap, M_SCSIDA);
2096                                         xpt_release_ccb(done_ccb);
2097                                         xpt_schedule(periph, priority);
2098                                         return;
2099                                 } else
2100                                 /*
2101                                  * Attach to anything that claims to be a
2102                                  * direct access or optical disk device,
2103                                  * as long as it doesn't return a "Logical
2104                                  * unit not supported" (0x25) error.
2105                                  */
2106                                 if ((have_sense) && (asc != 0x25)
2107                                  && (error_code == SSD_CURRENT_ERROR)) {
2108                                         const char *sense_key_desc;
2109                                         const char *asc_desc;
2110
2111                                         scsi_sense_desc(sense_key, asc, ascq,
2112                                                         &cgd.inq_data,
2113                                                         &sense_key_desc,
2114                                                         &asc_desc);
2115                                         snprintf(announce_buf,
2116                                             sizeof(announce_buf),
2117                                                 "Attempt to query device "
2118                                                 "size failed: %s, %s",
2119                                                 sense_key_desc,
2120                                                 asc_desc);
2121                                 } else {
2122                                         if (have_sense)
2123                                                 scsi_sense_print(
2124                                                         &done_ccb->csio);
2125                                         else {
2126                                                 xpt_print(periph->path,
2127                                                     "got CAM status %#x\n",
2128                                                     done_ccb->ccb_h.status);
2129                                         }
2130
2131                                         xpt_print(periph->path, "fatal error, "
2132                                             "failed to attach to device\n");
2133
2134                                         /*
2135                                          * Free up resources.
2136                                          */
2137                                         cam_periph_invalidate(periph);
2138                                 }
2139                         }
2140                 }
2141                 free(csio->data_ptr, M_SCSIDA);
2142                 if (announce_buf[0] != '\0') {
2143                         /*
2144                          * Create our sysctl variables, now that we know
2145                          * we have successfully attached.
2146                          */
2147                         /* increase the refcount */
2148                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2149                                 taskqueue_enqueue(taskqueue_thread,
2150                                                   &softc->sysctl_task);
2151                                 xpt_announce_periph(periph, announce_buf);
2152                         } else {
2153                                 xpt_print(periph->path, "fatal error, "
2154                                     "could not acquire reference count\n");
2155                         }
2156
2157                 }
2158                 softc->state = DA_STATE_NORMAL;
2159                 /*
2160                  * Since our peripheral may be invalidated by an error
2161                  * above or an external event, we must release our CCB
2162                  * before releasing the probe lock on the peripheral.
2163                  * The peripheral will only go away once the last lock
2164                  * is removed, and we need it around for the CCB release
2165                  * operation.
2166                  */
2167                 xpt_release_ccb(done_ccb);
2168                 cam_periph_unhold(periph);
2169                 return;
2170         }
2171         case DA_CCB_WAITING:
2172         {
2173                 /* Caller will release the CCB */
2174                 wakeup(&done_ccb->ccb_h.cbfcnp);
2175                 return;
2176         }
2177         case DA_CCB_DUMP:
2178                 /* No-op.  We're polling */
2179                 return;
2180         default:
2181                 break;
2182         }
2183         xpt_release_ccb(done_ccb);
2184 }
2185
2186 static int
2187 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2188 {
2189         struct da_softc   *softc;
2190         struct cam_periph *periph;
2191         int error;
2192
2193         periph = xpt_path_periph(ccb->ccb_h.path);
2194         softc = (struct da_softc *)periph->softc;
2195
2196         /*
2197          * Automatically detect devices that do not support
2198          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
2199          */
2200         error = 0;
2201         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2202                 error = cmd6workaround(ccb);
2203         } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2204                    CAM_SCSI_STATUS_ERROR)
2205          && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
2206          && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
2207          && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
2208          && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2209                 int sense_key, error_code, asc, ascq;
2210
2211                 scsi_extract_sense(&ccb->csio.sense_data,
2212                                    &error_code, &sense_key, &asc, &ascq);
2213                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2214                         error = cmd6workaround(ccb);
2215         }
2216         if (error == ERESTART)
2217                 return (ERESTART);
2218
2219         /*
2220          * XXX
2221          * Until we have a better way of doing pack validation,
2222          * don't treat UAs as errors.
2223          */
2224         sense_flags |= SF_RETRY_UA;
2225         return(cam_periph_error(ccb, cam_flags, sense_flags,
2226                                 &softc->saved_ccb));
2227 }
2228
2229 static void
2230 daprevent(struct cam_periph *periph, int action)
2231 {
2232         struct  da_softc *softc;
2233         union   ccb *ccb;
2234         int     error;
2235
2236         softc = (struct da_softc *)periph->softc;
2237
2238         if (((action == PR_ALLOW)
2239           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2240          || ((action == PR_PREVENT)
2241           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2242                 return;
2243         }
2244
2245         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2246
2247         scsi_prevent(&ccb->csio,
2248                      /*retries*/1,
2249                      /*cbcfp*/dadone,
2250                      MSG_SIMPLE_Q_TAG,
2251                      action,
2252                      SSD_FULL_SIZE,
2253                      5000);
2254
2255         error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
2256                                   SF_RETRY_UA, softc->disk->d_devstat);
2257
2258         if (error == 0) {
2259                 if (action == PR_ALLOW)
2260                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
2261                 else
2262                         softc->flags |= DA_FLAG_PACK_LOCKED;
2263         }
2264
2265         xpt_release_ccb(ccb);
2266 }
2267
2268 static int
2269 dagetcapacity(struct cam_periph *periph)
2270 {
2271         struct da_softc *softc;
2272         union ccb *ccb;
2273         struct scsi_read_capacity_data *rcap;
2274         struct scsi_read_capacity_data_long *rcaplong;
2275         uint32_t block_len;
2276         uint64_t maxsector;
2277         int error, rc16failed;
2278         u_int32_t sense_flags;
2279         u_int lbppbe;   /* Logical blocks per physical block exponent. */
2280         u_int lalba;    /* Lowest aligned LBA. */
2281
2282         softc = (struct da_softc *)periph->softc;
2283         block_len = 0;
2284         maxsector = 0;
2285         lbppbe = 0;
2286         lalba = 0;
2287         error = 0;
2288         rc16failed = 0;
2289         sense_flags = SF_RETRY_UA;
2290         if (softc->flags & DA_FLAG_PACK_REMOVABLE)
2291                 sense_flags |= SF_NO_PRINT;
2292
2293         /* Do a read capacity */
2294         rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
2295                                                         M_SCSIDA,
2296                                                         M_NOWAIT | M_ZERO);
2297         if (rcap == NULL)
2298                 return (ENOMEM);
2299         rcaplong = (struct scsi_read_capacity_data_long *)rcap;
2300
2301         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2302
2303         /* Try READ CAPACITY(16) first if we think it should work. */
2304         if (softc->flags & DA_FLAG_CAN_RC16) {
2305                 scsi_read_capacity_16(&ccb->csio,
2306                               /*retries*/ 4,
2307                               /*cbfcnp*/ dadone,
2308                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2309                               /*lba*/ 0,
2310                               /*reladr*/ 0,
2311                               /*pmi*/ 0,
2312                               rcaplong,
2313                               /*sense_len*/ SSD_FULL_SIZE,
2314                               /*timeout*/ 60000);
2315                 ccb->ccb_h.ccb_bp = NULL;
2316
2317                 error = cam_periph_runccb(ccb, daerror,
2318                                   /*cam_flags*/CAM_RETRY_SELTO,
2319                                   sense_flags,
2320                                   softc->disk->d_devstat);
2321                 if (error == 0)
2322                         goto rc16ok;
2323
2324                 /* If we got ILLEGAL REQUEST, do not prefer RC16 any more. */
2325                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2326                      CAM_REQ_INVALID) {
2327                         softc->flags &= ~DA_FLAG_CAN_RC16;
2328                 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2329                      CAM_SCSI_STATUS_ERROR) &&
2330                     (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) &&
2331                     (ccb->ccb_h.status & CAM_AUTOSNS_VALID) &&
2332                     ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) &&
2333                     ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2334                         int sense_key, error_code, asc, ascq;
2335
2336                         scsi_extract_sense(&ccb->csio.sense_data,
2337                                    &error_code, &sense_key, &asc, &ascq);
2338                         if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2339                                 softc->flags &= ~DA_FLAG_CAN_RC16;
2340                 }
2341                 rc16failed = 1;
2342         }
2343
2344         /* Do READ CAPACITY(10). */
2345         scsi_read_capacity(&ccb->csio,
2346                            /*retries*/4,
2347                            /*cbfncp*/dadone,
2348                            MSG_SIMPLE_Q_TAG,
2349                            rcap,
2350                            SSD_FULL_SIZE,
2351                            /*timeout*/60000);
2352         ccb->ccb_h.ccb_bp = NULL;
2353
2354         error = cam_periph_runccb(ccb, daerror,
2355                                   /*cam_flags*/CAM_RETRY_SELTO,
2356                                   sense_flags,
2357                                   softc->disk->d_devstat);
2358         if (error == 0) {
2359                 block_len = scsi_4btoul(rcap->length);
2360                 maxsector = scsi_4btoul(rcap->addr);
2361
2362                 if (maxsector != 0xffffffff || rc16failed)
2363                         goto done;
2364         } else
2365                 goto done;
2366
2367         /* If READ CAPACITY(10) returned overflow, use READ CAPACITY(16) */
2368         scsi_read_capacity_16(&ccb->csio,
2369                               /*retries*/ 4,
2370                               /*cbfcnp*/ dadone,
2371                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2372                               /*lba*/ 0,
2373                               /*reladr*/ 0,
2374                               /*pmi*/ 0,
2375                               rcaplong,
2376                               /*sense_len*/ SSD_FULL_SIZE,
2377                               /*timeout*/ 60000);
2378         ccb->ccb_h.ccb_bp = NULL;
2379
2380         error = cam_periph_runccb(ccb, daerror,
2381                                   /*cam_flags*/CAM_RETRY_SELTO,
2382                                   sense_flags,
2383                                   softc->disk->d_devstat);
2384         if (error == 0) {
2385 rc16ok:
2386                 block_len = scsi_4btoul(rcaplong->length);
2387                 maxsector = scsi_8btou64(rcaplong->addr);
2388                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2389                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2390         }
2391
2392 done:
2393
2394         if (error == 0) {
2395                 if (block_len >= MAXPHYS || block_len == 0) {
2396                         xpt_print(periph->path,
2397                             "unsupportable block size %ju\n",
2398                             (uintmax_t) block_len);
2399                         error = EINVAL;
2400                 } else {
2401                         dasetgeom(periph, block_len, maxsector,
2402                             lbppbe, lalba & SRC16_LALBA);
2403                         if (lalba & SRC16_LBPME)
2404                                 softc->flags |= DA_FLAG_CAN_LBPME;
2405                         else
2406                                 softc->flags &= ~DA_FLAG_CAN_LBPME;
2407                 }
2408         }
2409
2410         xpt_release_ccb(ccb);
2411
2412         free(rcap, M_SCSIDA);
2413
2414         return (error);
2415 }
2416
2417 static void
2418 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
2419     u_int lbppbe, u_int lalba)
2420 {
2421         struct ccb_calc_geometry ccg;
2422         struct da_softc *softc;
2423         struct disk_params *dp;
2424
2425         softc = (struct da_softc *)periph->softc;
2426
2427         dp = &softc->params;
2428         dp->secsize = block_len;
2429         dp->sectors = maxsector + 1;
2430         if (lbppbe > 0) {
2431                 dp->stripesize = block_len << lbppbe;
2432                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
2433                     dp->stripesize;
2434         } else if (softc->quirks & DA_Q_4K) {
2435                 dp->stripesize = 4096;
2436                 dp->stripeoffset = 0;
2437         } else {
2438                 dp->stripesize = 0;
2439                 dp->stripeoffset = 0;
2440         }
2441         /*
2442          * Have the controller provide us with a geometry
2443          * for this disk.  The only time the geometry
2444          * matters is when we boot and the controller
2445          * is the only one knowledgeable enough to come
2446          * up with something that will make this a bootable
2447          * device.
2448          */
2449         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2450         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2451         ccg.block_size = dp->secsize;
2452         ccg.volume_size = dp->sectors;
2453         ccg.heads = 0;
2454         ccg.secs_per_track = 0;
2455         ccg.cylinders = 0;
2456         xpt_action((union ccb*)&ccg);
2457         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2458                 /*
2459                  * We don't know what went wrong here- but just pick
2460                  * a geometry so we don't have nasty things like divide
2461                  * by zero.
2462                  */
2463                 dp->heads = 255;
2464                 dp->secs_per_track = 255;
2465                 dp->cylinders = dp->sectors / (255 * 255);
2466                 if (dp->cylinders == 0) {
2467                         dp->cylinders = 1;
2468                 }
2469         } else {
2470                 dp->heads = ccg.heads;
2471                 dp->secs_per_track = ccg.secs_per_track;
2472                 dp->cylinders = ccg.cylinders;
2473         }
2474 }
2475
2476 static void
2477 dasendorderedtag(void *arg)
2478 {
2479         struct da_softc *softc = arg;
2480
2481         if (da_send_ordered) {
2482                 if ((softc->ordered_tag_count == 0)
2483                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2484                         softc->flags |= DA_FLAG_NEED_OTAG;
2485                 }
2486                 if (softc->outstanding_cmds > 0)
2487                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2488
2489                 softc->ordered_tag_count = 0;
2490         }
2491         /* Queue us up again */
2492         callout_reset(&softc->sendordered_c,
2493             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2494             dasendorderedtag, softc);
2495 }
2496
2497 /*
2498  * Step through all DA peripheral drivers, and if the device is still open,
2499  * sync the disk cache to physical media.
2500  */
2501 static void
2502 dashutdown(void * arg, int howto)
2503 {
2504         struct cam_periph *periph;
2505         struct da_softc *softc;
2506
2507         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2508                 union ccb ccb;
2509
2510                 cam_periph_lock(periph);
2511                 softc = (struct da_softc *)periph->softc;
2512
2513                 /*
2514                  * We only sync the cache if the drive is still open, and
2515                  * if the drive is capable of it..
2516                  */
2517                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2518                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2519                         cam_periph_unlock(periph);
2520                         continue;
2521                 }
2522
2523                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2524
2525                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2526                 scsi_synchronize_cache(&ccb.csio,
2527                                        /*retries*/1,
2528                                        /*cbfcnp*/dadone,
2529                                        MSG_SIMPLE_Q_TAG,
2530                                        /*begin_lba*/0, /* whole disk */
2531                                        /*lb_count*/0,
2532                                        SSD_FULL_SIZE,
2533                                        60 * 60 * 1000);
2534
2535                 xpt_polled_action(&ccb);
2536
2537                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2538                         if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2539                              CAM_SCSI_STATUS_ERROR)
2540                          && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2541                                 int error_code, sense_key, asc, ascq;
2542
2543                                 scsi_extract_sense(&ccb.csio.sense_data,
2544                                                    &error_code, &sense_key,
2545                                                    &asc, &ascq);
2546
2547                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2548                                         scsi_sense_print(&ccb.csio);
2549                         } else {
2550                                 xpt_print(periph->path, "Synchronize "
2551                                     "cache failed, status == 0x%x, scsi status "
2552                                     "== 0x%x\n", ccb.ccb_h.status,
2553                                     ccb.csio.scsi_status);
2554                         }
2555                 }
2556
2557                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2558                         cam_release_devq(ccb.ccb_h.path,
2559                                          /*relsim_flags*/0,
2560                                          /*reduction*/0,
2561                                          /*timeout*/0,
2562                                          /*getcount_only*/0);
2563                 cam_periph_unlock(periph);
2564         }
2565 }
2566
2567 #else /* !_KERNEL */
2568
2569 /*
2570  * XXX This is only left out of the kernel build to silence warnings.  If,
2571  * for some reason this function is used in the kernel, the ifdefs should
2572  * be moved so it is included both in the kernel and userland.
2573  */
2574 void
2575 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2576                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2577                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2578                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2579                  u_int32_t timeout)
2580 {
2581         struct scsi_format_unit *scsi_cmd;
2582
2583         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2584         scsi_cmd->opcode = FORMAT_UNIT;
2585         scsi_cmd->byte2 = byte2;
2586         scsi_ulto2b(ileave, scsi_cmd->interleave);
2587
2588         cam_fill_csio(csio,
2589                       retries,
2590                       cbfcnp,
2591                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2592                       tag_action,
2593                       data_ptr,
2594                       dxfer_len,
2595                       sense_len,
2596                       sizeof(*scsi_cmd),
2597                       timeout);
2598 }
2599
2600 #endif /* _KERNEL */