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_NEED_OTAG       = 0x020,
  81         DA_FLAG_WENT_IDLE       = 0x040,
  82         DA_FLAG_RETRY_UA        = 0x080,
  83         DA_FLAG_OPEN            = 0x100,
  84         DA_FLAG_SCTX_INIT       = 0x200,
  85         DA_FLAG_CAN_RC16        = 0x400
  86 } da_flags;
  87
  88 typedef enum {
  89         DA_Q_NONE               = 0x00,
  90         DA_Q_NO_SYNC_CACHE      = 0x01,
  91         DA_Q_NO_6_BYTE          = 0x02,
  92         DA_Q_NO_PREVENT         = 0x04,
  93         DA_Q_4K                 = 0x08
  94 } da_quirks;
  95
  96 typedef enum {
  97         DA_CCB_PROBE            = 0x01,
  98         DA_CCB_PROBE2           = 0x02,
  99         DA_CCB_BUFFER_IO        = 0x03,
 100         DA_CCB_WAITING          = 0x04,
 101         DA_CCB_DUMP             = 0x05,
 102         DA_CCB_DELETE           = 0x06,
 103         DA_CCB_TYPE_MASK        = 0x0F,
 104         DA_CCB_RETRY_UA         = 0x10
 105 } da_ccb_state;
 106
 107 typedef enum {
 108         DA_DELETE_NONE,
 109         DA_DELETE_DISABLE,
 110         DA_DELETE_ZERO,
 111         DA_DELETE_WS10,
 112         DA_DELETE_WS16,
 113         DA_DELETE_UNMAP,
 114         DA_DELETE_MAX = DA_DELETE_UNMAP
 115 } da_delete_methods;
 116
 117 static const char *da_delete_method_names[] =
 118     { "NONE", "DISABLE", "ZERO", "WS10", "WS16", "UNMAP" };
 119
 120 /* Offsets into our private area for storing information */
 121 #define ccb_state       ppriv_field0
 122 #define ccb_bp          ppriv_ptr1
 123
 124 struct disk_params {
 125         u_int8_t  heads;
 126         u_int32_t cylinders;
 127         u_int8_t  secs_per_track;
 128         u_int32_t secsize;      /* Number of bytes/sector */
 129         u_int64_t sectors;      /* total number sectors */
 130         u_int     stripesize;
 131         u_int     stripeoffset;
 132 };
 133
 134 #define UNMAP_MAX_RANGES        512
 135
 136 struct da_softc {
 137         struct   bio_queue_head bio_queue;
 138         struct   bio_queue_head delete_queue;
 139         struct   bio_queue_head delete_run_queue;
 140         SLIST_ENTRY(da_softc) links;
 141         LIST_HEAD(, ccb_hdr) pending_ccbs;
 142         da_state state;
 143         da_flags flags;
 144         da_quirks quirks;
 145         int      minimum_cmd_size;
 146         int      error_inject;
 147         int      ordered_tag_count;
 148         int      outstanding_cmds;
 149         int      unmap_max_ranges;
 150         int      unmap_max_lba;
 151         int      delete_running;
 152         da_delete_methods        delete_method;
 153         struct   disk_params params;
 154         struct   disk *disk;
 155         union    ccb saved_ccb;
 156         struct task             sysctl_task;
 157         struct sysctl_ctx_list  sysctl_ctx;
 158         struct sysctl_oid       *sysctl_tree;
 159         struct callout          sendordered_c;
 160         uint64_t wwpn;
 161         uint8_t  unmap_buf[UNMAP_MAX_RANGES * 16 + 8];
 162 };
 163
 164 struct da_quirk_entry {
 165         struct scsi_inquiry_pattern inq_pat;
 166         da_quirks quirks;
 167 };
 168
 169 static const char quantum[] = "QUANTUM";
 170 static const char microp[] = "MICROP";
 171
 172 static struct da_quirk_entry da_quirk_table[] =
 173 {
 174         /* SPI, FC devices */
 175         {
 176                 /*
 177                  * Fujitsu M2513A MO drives.
 178                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 179                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 180                  * Reported by: W.Scholten <whs@xs4all.nl>
 181                  */
 182                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 183                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 184         },
 185         {
 186                 /* See above. */
 187                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 188                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 189         },
 190         {
 191                 /*
 192                  * This particular Fujitsu drive doesn't like the
 193                  * synchronize cache command.
 194                  * Reported by: Tom Jackson <toj@gorilla.net>
 195                  */
 196                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 197                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 198         },
 199         {
 200                 /*
 201                  * This drive doesn't like the synchronize cache command
 202                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 203                  * in NetBSD PR kern/6027, August 24, 1998.
 204                  */
 205                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 206                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 207         },
 208         {
 209                 /*
 210                  * This drive doesn't like the synchronize cache command
 211                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 212                  * (PR 8882).
 213                  */
 214                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 215                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 216         },
 217         {
 218                 /*
 219                  * Doesn't like the synchronize cache command.
 220                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 221                  */
 222                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 223                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 224         },
 225         {
 226                 /*
 227                  * Doesn't like the synchronize cache command.
 228                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 229                  */
 230                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 231                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 232         },
 233         {
 234                 /*
 235                  * Doesn't like the synchronize cache command.
 236                  */
 237                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 238                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 239         },
 240         {
 241                 /*
 242                  * Doesn't like the synchronize cache command.
 243                  * Reported by: walter@pelissero.de
 244                  */
 245                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 246                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 247         },
 248         {
 249                 /*
 250                  * Doesn't work correctly with 6 byte reads/writes.
 251                  * Returns illegal request, and points to byte 9 of the
 252                  * 6-byte CDB.
 253                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 254                  */
 255                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 256                 /*quirks*/ DA_Q_NO_6_BYTE
 257         },
 258         {
 259                 /* See above. */
 260                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 261                 /*quirks*/ DA_Q_NO_6_BYTE
 262         },
 263         {
 264                 /*
 265                  * Doesn't like the synchronize cache command.
 266                  * Reported by: walter@pelissero.de
 267                  */
 268                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 269                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 270         },
 271         {
 272                 /*
 273                  * The CISS RAID controllers do not support SYNC_CACHE
 274                  */
 275                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 276                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 277         },
 278         /* USB mass storage devices supported by umass(4) */
 279         {
 280                 /*
 281                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 282                  * PR: kern/51675
 283                  */
 284                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 285                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 286         },
 287         {
 288                 /*
 289                  * Power Quotient Int. (PQI) USB flash key
 290                  * PR: kern/53067
 291                  */
 292                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 293                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 294         },
 295         {
 296                 /*
 297                  * Creative Nomad MUVO mp3 player (USB)
 298                  * PR: kern/53094
 299                  */
 300                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 301                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 302         },
 303         {
 304                 /*
 305                  * Jungsoft NEXDISK USB flash key
 306                  * PR: kern/54737
 307                  */
 308                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 309                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 310         },
 311         {
 312                 /*
 313                  * FreeDik USB Mini Data Drive
 314                  * PR: kern/54786
 315                  */
 316                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 317                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 318         },
 319         {
 320                 /*
 321                  * Sigmatel USB Flash MP3 Player
 322                  * PR: kern/57046
 323                  */
 324                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 325                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 326         },
 327         {
 328                 /*
 329                  * Neuros USB Digital Audio Computer
 330                  * PR: kern/63645
 331                  */
 332                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 333                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 334         },
 335         {
 336                 /*
 337                  * SEAGRAND NP-900 MP3 Player
 338                  * PR: kern/64563
 339                  */
 340                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 341                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 342         },
 343         {
 344                 /*
 345                  * iRiver iFP MP3 player (with UMS Firmware)
 346                  * PR: kern/54881, i386/63941, kern/66124
 347                  */
 348                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 349                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 350         },
 351         {
 352                 /*
 353                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 354                  * PR: kern/70158
 355                  */
 356                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 357                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 358         },
 359         {
 360                 /*
 361                  * ZICPlay USB MP3 Player with FM
 362                  * PR: kern/75057
 363                  */
 364                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 365                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 366         },
 367         {
 368                 /*
 369                  * TEAC USB floppy mechanisms
 370                  */
 371                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 372                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 373         },
 374         {
 375                 /*
 376                  * Kingston DataTraveler II+ USB Pen-Drive.
 377                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 378                  */
 379                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 380                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 381         },
 382         {
 383                 /*
 384                  * Motorola E398 Mobile Phone (TransFlash memory card).
 385                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 386                  * PR: usb/89889
 387                  */
 388                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 389                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 390         },
 391         {
 392                 /*
 393                  * Qware BeatZkey! Pro
 394                  * PR: usb/79164
 395                  */
 396                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 397                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 398         },
 399         {
 400                 /*
 401                  * Time DPA20B 1GB MP3 Player
 402                  * PR: usb/81846
 403                  */
 404                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 405                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 406         },
 407         {
 408                 /*
 409                  * Samsung USB key 128Mb
 410                  * PR: usb/90081
 411                  */
 412                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 413                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 414         },
 415         {
 416                 /*
 417                  * Kingston DataTraveler 2.0 USB Flash memory.
 418                  * PR: usb/89196
 419                  */
 420                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 421                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 422         },
 423         {
 424                 /*
 425                  * Creative MUVO Slim mp3 player (USB)
 426                  * PR: usb/86131
 427                  */
 428                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 429                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 430                 },
 431         {
 432                 /*
 433                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 434                  * PR: usb/80487
 435                  */
 436                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 437                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 438         },
 439         {
 440                 /*
 441                  * SanDisk Micro Cruzer 128MB
 442                  * PR: usb/75970
 443                  */
 444                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 445                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 446         },
 447         {
 448                 /*
 449                  * TOSHIBA TransMemory USB sticks
 450                  * PR: kern/94660
 451                  */
 452                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 453                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 454         },
 455         {
 456                 /*
 457                  * PNY USB Flash keys
 458                  * PR: usb/75578, usb/72344, usb/65436
 459                  */
 460                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 461                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 462         },
 463         {
 464                 /*
 465                  * Genesys 6-in-1 Card Reader
 466                  * PR: usb/94647
 467                  */
 468                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 469                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 470         },
 471         {
 472                 /*
 473                  * Rekam Digital CAMERA
 474                  * PR: usb/98713
 475                  */
 476                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 477                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 478         },
 479         {
 480                 /*
 481                  * iRiver H10 MP3 player
 482                  * PR: usb/102547
 483                  */
 484                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 485                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 486         },
 487         {
 488                 /*
 489                  * iRiver U10 MP3 player
 490                  * PR: usb/92306
 491                  */
 492                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 493                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 494         },
 495         {
 496                 /*
 497                  * X-Micro Flash Disk
 498                  * PR: usb/96901
 499                  */
 500                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 501                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 502         },
 503         {
 504                 /*
 505                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 506                  * PR: usb/96546
 507                  */
 508                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 509                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 510         },
 511         {
 512                 /*
 513                  * Denver MP3 player
 514                  * PR: usb/107101
 515                  */
 516                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 517                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 518         },
 519         {
 520                 /*
 521                  * Philips USB Key Audio KEY013
 522                  * PR: usb/68412
 523                  */
 524                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 525                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 526         },
 527         {
 528                 /*
 529                  * JNC MP3 Player
 530                  * PR: usb/94439
 531                  */
 532                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 533                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 534         },
 535         {
 536                 /*
 537                  * SAMSUNG MP0402H
 538                  * PR: usb/108427
 539                  */
 540                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 541                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 542         },
 543         {
 544                 /*
 545                  * I/O Magic USB flash - Giga Bank
 546                  * PR: usb/108810
 547                  */
 548                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 549                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 550         },
 551         {
 552                 /*
 553                  * JoyFly 128mb USB Flash Drive
 554                  * PR: 96133
 555                  */
 556                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 557                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 558         },
 559         {
 560                 /*
 561                  * ChipsBnk usb stick
 562                  * PR: 103702
 563                  */
 564                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 565                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 566         },
 567         {
 568                 /*
 569                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 570                  * PR: 129858
 571                  */
 572                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 573                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 574         },
 575         {
 576                 /*
 577                  * Samsung YP-U3 mp3-player
 578                  * PR: 125398
 579                  */
 580                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 581                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 582         },
 583         {
 584                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 585                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 586         },
 587         {
 588                 /*
 589                  * Sony Cyber-Shot DSC cameras
 590                  * PR: usb/137035
 591                  */
 592                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 593                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 594         },
 595         /* ATA/SATA devices over SAS/USB/... */
 596         {
 597                 /* Hitachi Advanced Format (4k) drives */
 598                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 599                 /*quirks*/DA_Q_4K
 600         },
 601         {
 602                 /* Samsung Advanced Format (4k) drives */
 603                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 604                 /*quirks*/DA_Q_4K
 605         },
 606         {
 607                 /* Samsung Advanced Format (4k) drives */
 608                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 609                 /*quirks*/DA_Q_4K
 610         },
 611         {
 612                 /* Samsung Advanced Format (4k) drives */
 613                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 614                 /*quirks*/DA_Q_4K
 615         },
 616         {
 617                 /* Samsung Advanced Format (4k) drives */
 618                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 619                 /*quirks*/DA_Q_4K
 620         },
 621         {
 622                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 623                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 624                 /*quirks*/DA_Q_4K
 625         },
 626         {
 627                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 628                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 629                 /*quirks*/DA_Q_4K
 630         },
 631         {
 632                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 633                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 634                 /*quirks*/DA_Q_4K
 635         },
 636         {
 637                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 638                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 639                 /*quirks*/DA_Q_4K
 640         },
 641         {
 642                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 643                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 644                 /*quirks*/DA_Q_4K
 645         },
 646         {
 647                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 648                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 649                 /*quirks*/DA_Q_4K
 650         },
 651         {
 652                 /* Seagate Momentus Advanced Format (4k) drives */
 653                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 654                 /*quirks*/DA_Q_4K
 655         },
 656         {
 657                 /* Seagate Momentus Advanced Format (4k) drives */
 658                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 659                 /*quirks*/DA_Q_4K
 660         },
 661         {
 662                 /* Seagate Momentus Advanced Format (4k) drives */
 663                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 664                 /*quirks*/DA_Q_4K
 665         },
 666         {
 667                 /* Seagate Momentus Advanced Format (4k) drives */
 668                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 669                 /*quirks*/DA_Q_4K
 670         },
 671         {
 672                 /* Seagate Momentus Advanced Format (4k) drives */
 673                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 674                 /*quirks*/DA_Q_4K
 675         },
 676         {
 677                 /* Seagate Momentus Advanced Format (4k) drives */
 678                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 679                 /*quirks*/DA_Q_4K
 680         },
 681         {
 682                 /* Seagate Momentus Advanced Format (4k) drives */
 683                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 684                 /*quirks*/DA_Q_4K
 685         },
 686         {
 687                 /* Seagate Momentus Advanced Format (4k) drives */
 688                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 689                 /*quirks*/DA_Q_4K
 690         },
 691         {
 692                 /* Seagate Momentus Advanced Format (4k) drives */
 693                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 694                 /*quirks*/DA_Q_4K
 695         },
 696         {
 697                 /* Seagate Momentus Advanced Format (4k) drives */
 698                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 699                 /*quirks*/DA_Q_4K
 700         },
 701         {
 702                 /* Seagate Momentus Advanced Format (4k) drives */
 703                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 704                 /*quirks*/DA_Q_4K
 705         },
 706         {
 707                 /* Seagate Momentus Advanced Format (4k) drives */
 708                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 709                 /*quirks*/DA_Q_4K
 710         },
 711         {
 712                 /* Seagate Momentus Advanced Format (4k) drives */
 713                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 714                 /*quirks*/DA_Q_4K
 715         },
 716         {
 717                 /* Seagate Momentus Advanced Format (4k) drives */
 718                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 719                 /*quirks*/DA_Q_4K
 720         },
 721         {
 722                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 723                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 724                 /*quirks*/DA_Q_4K
 725         },
 726         {
 727                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 728                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 729                 /*quirks*/DA_Q_4K
 730         },
 731         {
 732                 /* WDC Caviar Green Advanced Format (4k) drives */
 733                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 734                 /*quirks*/DA_Q_4K
 735         },
 736         {
 737                 /* WDC Caviar Green Advanced Format (4k) drives */
 738                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 739                 /*quirks*/DA_Q_4K
 740         },
 741         {
 742                 /* WDC Caviar Green Advanced Format (4k) drives */
 743                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 744                 /*quirks*/DA_Q_4K
 745         },
 746         {
 747                 /* WDC Caviar Green Advanced Format (4k) drives */
 748                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 749                 /*quirks*/DA_Q_4K
 750         },
 751         {
 752                 /* WDC Caviar Green Advanced Format (4k) drives */
 753                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 754                 /*quirks*/DA_Q_4K
 755         },
 756         {
 757                 /* WDC Caviar Green Advanced Format (4k) drives */
 758                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 759                 /*quirks*/DA_Q_4K
 760         },
 761         {
 762                 /* WDC Caviar Green Advanced Format (4k) drives */
 763                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 764                 /*quirks*/DA_Q_4K
 765         },
 766         {
 767                 /* WDC Caviar Green Advanced Format (4k) drives */
 768                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 769                 /*quirks*/DA_Q_4K
 770         },
 771         {
 772                 /* WDC Scorpio Black Advanced Format (4k) drives */
 773                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 774                 /*quirks*/DA_Q_4K
 775         },
 776         {
 777                 /* WDC Scorpio Black Advanced Format (4k) drives */
 778                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 779                 /*quirks*/DA_Q_4K
 780         },
 781         {
 782                 /* WDC Scorpio Black Advanced Format (4k) drives */
 783                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 784                 /*quirks*/DA_Q_4K
 785         },
 786         {
 787                 /* WDC Scorpio Black Advanced Format (4k) drives */
 788                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 789                 /*quirks*/DA_Q_4K
 790         },
 791         {
 792                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 793                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 794                 /*quirks*/DA_Q_4K
 795         },
 796         {
 797                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 798                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 799                 /*quirks*/DA_Q_4K
 800         },
 801         {
 802                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 803                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 804                 /*quirks*/DA_Q_4K
 805         },
 806         {
 807                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 808                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 809                 /*quirks*/DA_Q_4K
 810         },
 811         {
 812                 /*
 813                  * Olympus FE-210 camera
 814                  */
 815                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 816                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 817         },
 818         {
 819                 /*
 820                  * LG UP3S MP3 player
 821                  */
 822                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 823                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 824         },
 825         {
 826                 /*
 827                  * Laser MP3-2GA13 MP3 player
 828                  */
 829                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 830                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 831         },
 832 };
 833
 834 static  disk_strategy_t dastrategy;
 835 static  dumper_t        dadump;
 836 static  periph_init_t   dainit;
 837 static  void            daasync(void *callback_arg, u_int32_t code,
 838                                 struct cam_path *path, void *arg);
 839 static  void            dasysctlinit(void *context, int pending);
 840 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 841 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
 842 static  periph_ctor_t   daregister;
 843 static  periph_dtor_t   dacleanup;
 844 static  periph_start_t  dastart;
 845 static  periph_oninv_t  daoninvalidate;
 846 static  void            dadone(struct cam_periph *periph,
 847                                union ccb *done_ccb);
 848 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 849                                 u_int32_t sense_flags);
 850 static void             daprevent(struct cam_periph *periph, int action);
 851 static int              dagetcapacity(struct cam_periph *periph);
 852 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 853                                   uint64_t maxsector, u_int lbppbe, u_int lalba);
 854 static timeout_t        dasendorderedtag;
 855 static void             dashutdown(void *arg, int howto);
 856
 857 #ifndef DA_DEFAULT_TIMEOUT
 858 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 859 #endif
 860
 861 #ifndef DA_DEFAULT_RETRY
 862 #define DA_DEFAULT_RETRY        4
 863 #endif
 864
 865 #ifndef DA_DEFAULT_SEND_ORDERED
 866 #define DA_DEFAULT_SEND_ORDERED 1
 867 #endif
 868
 869
 870 static int da_retry_count = DA_DEFAULT_RETRY;
 871 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 872 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 873
 874 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 875             "CAM Direct Access Disk driver");
 876 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 877            &da_retry_count, 0, "Normal I/O retry count");
 878 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 879 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 880            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 881 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 882 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
 883            &da_send_ordered, 0, "Send Ordered Tags");
 884 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
 885
 886 /*
 887  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 888  * to the default timeout, we check to see whether an ordered
 889  * tagged transaction is appropriate to prevent simple tag
 890  * starvation.  Since we'd like to ensure that there is at least
 891  * 1/2 of the timeout length left for a starved transaction to
 892  * complete after we've sent an ordered tag, we must poll at least
 893  * four times in every timeout period.  This takes care of the worst
 894  * case where a starved transaction starts during an interval that
 895  * meets the requirement "don't send an ordered tag" test so it takes
 896  * us two intervals to determine that a tag must be sent.
 897  */
 898 #ifndef DA_ORDEREDTAG_INTERVAL
 899 #define DA_ORDEREDTAG_INTERVAL 4
 900 #endif
 901
 902 static struct periph_driver dadriver =
 903 {
 904         dainit, "da",
 905         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 906 };
 907
 908 PERIPHDRIVER_DECLARE(da, dadriver);
 909
 910 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 911
 912 static int
 913 daopen(struct disk *dp)
 914 {
 915         struct cam_periph *periph;
 916         struct da_softc *softc;
 917         int unit;
 918         int error;
 919
 920         periph = (struct cam_periph *)dp->d_drv1;
 921         if (periph == NULL) {
 922                 return (ENXIO);
 923         }
 924
 925         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 926                 return (ENXIO);
 927         }
 928
 929         cam_periph_lock(periph);
 930         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 931                 cam_periph_unlock(periph);
 932                 cam_periph_release(periph);
 933                 return (error);
 934         }
 935
 936         unit = periph->unit_number;
 937         softc = (struct da_softc *)periph->softc;
 938         softc->flags |= DA_FLAG_OPEN;
 939
 940         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 941             ("daopen\n"));
 942
 943         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 944                 /* Invalidate our pack information. */
 945                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 946         }
 947
 948         error = dagetcapacity(periph);
 949
 950         if (error == 0) {
 951
 952                 softc->disk->d_sectorsize = softc->params.secsize;
 953                 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
 954                 softc->disk->d_stripesize = softc->params.stripesize;
 955                 softc->disk->d_stripeoffset = softc->params.stripeoffset;
 956                 /* XXX: these are not actually "firmware" values, so they may be wrong */
 957                 softc->disk->d_fwsectors = softc->params.secs_per_track;
 958                 softc->disk->d_fwheads = softc->params.heads;
 959                 softc->disk->d_devstat->block_size = softc->params.secsize;
 960                 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
 961                 if (softc->delete_method > DA_DELETE_DISABLE)
 962                         softc->disk->d_flags |= DISKFLAG_CANDELETE;
 963                 else
 964                         softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
 965
 966                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 967                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
 968                         daprevent(periph, PR_PREVENT);
 969         } else
 970                 softc->flags &= ~DA_FLAG_OPEN;
 971
 972         cam_periph_unhold(periph);
 973         cam_periph_unlock(periph);
 974
 975         if (error != 0) {
 976                 cam_periph_release(periph);
 977         }
 978         return (error);
 979 }
 980
 981 static int
 982 daclose(struct disk *dp)
 983 {
 984         struct  cam_periph *periph;
 985         struct  da_softc *softc;
 986
 987         periph = (struct cam_periph *)dp->d_drv1;
 988         if (periph == NULL)
 989                 return (0);
 990
 991         cam_periph_lock(periph);
 992         if (cam_periph_hold(periph, PRIBIO) != 0) {
 993                 cam_periph_unlock(periph);
 994                 cam_periph_release(periph);
 995                 return (0);
 996         }
 997
 998         softc = (struct da_softc *)periph->softc;
 999
1000         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1001             ("daclose\n"));
1002
1003         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0
1004          && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1005                 union   ccb *ccb;
1006
1007                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1008
1009                 scsi_synchronize_cache(&ccb->csio,
1010                                        /*retries*/1,
1011                                        /*cbfcnp*/dadone,
1012                                        MSG_SIMPLE_Q_TAG,
1013                                        /*begin_lba*/0,/* Cover the whole disk */
1014                                        /*lb_count*/0,
1015                                        SSD_FULL_SIZE,
1016                                        5 * 60 * 1000);
1017
1018                 cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1019                                   /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1020                                   softc->disk->d_devstat);
1021                 xpt_release_ccb(ccb);
1022
1023         }
1024
1025         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
1026                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1027                         daprevent(periph, PR_ALLOW);
1028                 /*
1029                  * If we've got removeable media, mark the blocksize as
1030                  * unavailable, since it could change when new media is
1031                  * inserted.
1032                  */
1033                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1034         }
1035
1036         softc->flags &= ~DA_FLAG_OPEN;
1037         cam_periph_unhold(periph);
1038         cam_periph_unlock(periph);
1039         cam_periph_release(periph);
1040         return (0);
1041 }
1042
1043 static void
1044 daschedule(struct cam_periph *periph)
1045 {
1046         struct da_softc *softc = (struct da_softc *)periph->softc;
1047         uint32_t prio;
1048
1049         /* Check if cam_periph_getccb() was called. */
1050         prio = periph->immediate_priority;
1051
1052         /* Check if we have more work to do. */
1053         if (bioq_first(&softc->bio_queue) ||
1054             (!softc->delete_running && bioq_first(&softc->delete_queue))) {
1055                 prio = CAM_PRIORITY_NORMAL;
1056         }
1057
1058         /* Schedule CCB if any of above is true. */
1059         if (prio != CAM_PRIORITY_NONE)
1060                 xpt_schedule(periph, prio);
1061 }
1062
1063 /*
1064  * Actually translate the requested transfer into one the physical driver
1065  * can understand.  The transfer is described by a buf and will include
1066  * only one physical transfer.
1067  */
1068 static void
1069 dastrategy(struct bio *bp)
1070 {
1071         struct cam_periph *periph;
1072         struct da_softc *softc;
1073
1074         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1075         if (periph == NULL) {
1076                 biofinish(bp, NULL, ENXIO);
1077                 return;
1078         }
1079         softc = (struct da_softc *)periph->softc;
1080
1081         cam_periph_lock(periph);
1082
1083         /*
1084          * If the device has been made invalid, error out
1085          */
1086         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1087                 cam_periph_unlock(periph);
1088                 biofinish(bp, NULL, ENXIO);
1089                 return;
1090         }
1091
1092         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1093
1094         /*
1095          * Place it in the queue of disk activities for this disk
1096          */
1097         if (bp->bio_cmd == BIO_DELETE) {
1098                 if (bp->bio_bcount == 0)
1099                         biodone(bp);
1100                 else
1101                         bioq_disksort(&softc->delete_queue, bp);
1102         } else
1103                 bioq_disksort(&softc->bio_queue, bp);
1104
1105         /*
1106          * Schedule ourselves for performing the work.
1107          */
1108         daschedule(periph);
1109         cam_periph_unlock(periph);
1110
1111         return;
1112 }
1113
1114 static int
1115 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1116 {
1117         struct      cam_periph *periph;
1118         struct      da_softc *softc;
1119         u_int       secsize;
1120         struct      ccb_scsiio csio;
1121         struct      disk *dp;
1122         int         error = 0;
1123
1124         dp = arg;
1125         periph = dp->d_drv1;
1126         if (periph == NULL)
1127                 return (ENXIO);
1128         softc = (struct da_softc *)periph->softc;
1129         cam_periph_lock(periph);
1130         secsize = softc->params.secsize;
1131
1132         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1133                 cam_periph_unlock(periph);
1134                 return (ENXIO);
1135         }
1136
1137         if (length > 0) {
1138                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1139                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1140                 scsi_read_write(&csio,
1141                                 /*retries*/0,
1142                                 dadone,
1143                                 MSG_ORDERED_Q_TAG,
1144                                 /*read*/FALSE,
1145                                 /*byte2*/0,
1146                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1147                                 offset / secsize,
1148                                 length / secsize,
1149                                 /*data_ptr*/(u_int8_t *) virtual,
1150                                 /*dxfer_len*/length,
1151                                 /*sense_len*/SSD_FULL_SIZE,
1152                                 da_default_timeout * 1000);
1153                 xpt_polled_action((union ccb *)&csio);
1154
1155                 error = cam_periph_error((union ccb *)&csio,
1156                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1157                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1158                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1159                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1160                 if (error != 0)
1161                         printf("Aborting dump due to I/O error.\n");
1162                 cam_periph_unlock(periph);
1163                 return (error);
1164         }
1165
1166         /*
1167          * Sync the disk cache contents to the physical media.
1168          */
1169         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1170
1171                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1172                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1173                 scsi_synchronize_cache(&csio,
1174                                        /*retries*/0,
1175                                        /*cbfcnp*/dadone,
1176                                        MSG_SIMPLE_Q_TAG,
1177                                        /*begin_lba*/0,/* Cover the whole disk */
1178                                        /*lb_count*/0,
1179                                        SSD_FULL_SIZE,
1180                                        5 * 60 * 1000);
1181                 xpt_polled_action((union ccb *)&csio);
1182
1183                 error = cam_periph_error((union ccb *)&csio,
1184                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1185                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1186                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1187                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1188                 if (error != 0)
1189                         xpt_print(periph->path, "Synchronize cache failed\n");
1190         }
1191         cam_periph_unlock(periph);
1192         return (error);
1193 }
1194
1195 static int
1196 dagetattr(struct bio *bp)
1197 {
1198         int ret = -1;
1199         struct cam_periph *periph;
1200
1201         if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)
1202                 return ENXIO;
1203         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1204         if (periph->path == NULL)
1205                 return ENXIO;
1206
1207         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1208             periph->path);
1209         if (ret == 0)
1210                 bp->bio_completed = bp->bio_length;
1211         return ret;
1212 }
1213
1214 static void
1215 dainit(void)
1216 {
1217         cam_status status;
1218
1219         /*
1220          * Install a global async callback.  This callback will
1221          * receive async callbacks like "new device found".
1222          */
1223         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1224
1225         if (status != CAM_REQ_CMP) {
1226                 printf("da: Failed to attach master async callback "
1227                        "due to status 0x%x!\n", status);
1228         } else if (da_send_ordered) {
1229
1230                 /* Register our shutdown event handler */
1231                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1232                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1233                     printf("dainit: shutdown event registration failed!\n");
1234         }
1235 }
1236
1237 /*
1238  * Callback from GEOM, called when it has finished cleaning up its
1239  * resources.
1240  */
1241 static void
1242 dadiskgonecb(struct disk *dp)
1243 {
1244         struct cam_periph *periph;
1245
1246         periph = (struct cam_periph *)dp->d_drv1;
1247
1248         cam_periph_release(periph);
1249 }
1250
1251 static void
1252 daoninvalidate(struct cam_periph *periph)
1253 {
1254         struct da_softc *softc;
1255
1256         softc = (struct da_softc *)periph->softc;
1257
1258         /*
1259          * De-register any async callbacks.
1260          */
1261         xpt_register_async(0, daasync, periph, periph->path);
1262
1263         softc->flags |= DA_FLAG_PACK_INVALID;
1264
1265         /*
1266          * Return all queued I/O with ENXIO.
1267          * XXX Handle any transactions queued to the card
1268          *     with XPT_ABORT_CCB.
1269          */
1270         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1271         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1272
1273         /*
1274          * Tell GEOM that we've gone away, we'll get a callback when it is
1275          * done cleaning up its resources.
1276          */
1277         disk_gone(softc->disk);
1278
1279         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1280                   softc->outstanding_cmds, periph->refcount);
1281 }
1282
1283 static void
1284 dacleanup(struct cam_periph *periph)
1285 {
1286         struct da_softc *softc;
1287
1288         softc = (struct da_softc *)periph->softc;
1289
1290         xpt_print(periph->path, "removing device entry\n");
1291         cam_periph_unlock(periph);
1292
1293         /*
1294          * If we can't free the sysctl tree, oh well...
1295          */
1296         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1297             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1298                 xpt_print(periph->path, "can't remove sysctl context\n");
1299         }
1300
1301         disk_destroy(softc->disk);
1302         callout_drain(&softc->sendordered_c);
1303         free(softc, M_DEVBUF);
1304         cam_periph_lock(periph);
1305 }
1306
1307 static void
1308 daasync(void *callback_arg, u_int32_t code,
1309         struct cam_path *path, void *arg)
1310 {
1311         struct cam_periph *periph;
1312
1313         periph = (struct cam_periph *)callback_arg;
1314         switch (code) {
1315         case AC_FOUND_DEVICE:
1316         {
1317                 struct ccb_getdev *cgd;
1318                 cam_status status;
1319
1320                 cgd = (struct ccb_getdev *)arg;
1321                 if (cgd == NULL)
1322                         break;
1323
1324                 if (cgd->protocol != PROTO_SCSI)
1325                         break;
1326
1327                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1328                     && SID_TYPE(&cgd->inq_data) != T_RBC
1329                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1330                         break;
1331
1332                 /*
1333                  * Allocate a peripheral instance for
1334                  * this device and start the probe
1335                  * process.
1336                  */
1337                 status = cam_periph_alloc(daregister, daoninvalidate,
1338                                           dacleanup, dastart,
1339                                           "da", CAM_PERIPH_BIO,
1340                                           cgd->ccb_h.path, daasync,
1341                                           AC_FOUND_DEVICE, cgd);
1342
1343                 if (status != CAM_REQ_CMP
1344                  && status != CAM_REQ_INPROG)
1345                         printf("daasync: Unable to attach to new device "
1346                                 "due to status 0x%x\n", status);
1347                 return;
1348         }
1349         case AC_ADVINFO_CHANGED:
1350         {
1351                 uintptr_t buftype;
1352
1353                 buftype = (uintptr_t)arg;
1354                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1355                         struct da_softc *softc;
1356
1357                         softc = periph->softc;
1358                         disk_attr_changed(softc->disk, "GEOM::physpath",
1359                                           M_NOWAIT);
1360                 }
1361                 break;
1362         }
1363         case AC_SENT_BDR:
1364         case AC_BUS_RESET:
1365         {
1366                 struct da_softc *softc;
1367                 struct ccb_hdr *ccbh;
1368
1369                 softc = (struct da_softc *)periph->softc;
1370                 /*
1371                  * Don't fail on the expected unit attention
1372                  * that will occur.
1373                  */
1374                 softc->flags |= DA_FLAG_RETRY_UA;
1375                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1376                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1377                 break;
1378         }
1379         default:
1380                 break;
1381         }
1382         cam_periph_async(periph, code, path, arg);
1383 }
1384
1385 static void
1386 dasysctlinit(void *context, int pending)
1387 {
1388         struct cam_periph *periph;
1389         struct da_softc *softc;
1390         char tmpstr[80], tmpstr2[80];
1391         struct ccb_trans_settings cts;
1392
1393         periph = (struct cam_periph *)context;
1394         /*
1395          * periph was held for us when this task was enqueued
1396          */
1397         if (periph->flags & CAM_PERIPH_INVALID) {
1398                 cam_periph_release(periph);
1399                 return;
1400         }
1401
1402         softc = (struct da_softc *)periph->softc;
1403         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1404         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1405
1406         sysctl_ctx_init(&softc->sysctl_ctx);
1407         softc->flags |= DA_FLAG_SCTX_INIT;
1408         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1409                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1410                 CTLFLAG_RD, 0, tmpstr);
1411         if (softc->sysctl_tree == NULL) {
1412                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1413                 cam_periph_release(periph);
1414                 return;
1415         }
1416
1417         /*
1418          * Now register the sysctl handler, so the user can change the value on
1419          * the fly.
1420          */
1421         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1422                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1423                 &softc->delete_method, 0, dadeletemethodsysctl, "A",
1424                 "BIO_DELETE execution method");
1425         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1426                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1427                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1428                 "Minimum CDB size");
1429
1430         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1431                        SYSCTL_CHILDREN(softc->sysctl_tree),
1432                        OID_AUTO,
1433                        "error_inject",
1434                        CTLFLAG_RW,
1435                        &softc->error_inject,
1436                        0,
1437                        "error_inject leaf");
1438
1439
1440         /*
1441          * Add some addressing info.
1442          */
1443         memset(&cts, 0, sizeof (cts));
1444         xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1445         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1446         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1447         cam_periph_lock(periph);
1448         xpt_action((union ccb *)&cts);
1449         cam_periph_unlock(periph);
1450         if (cts.ccb_h.status != CAM_REQ_CMP) {
1451                 cam_periph_release(periph);
1452                 return;
1453         }
1454         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1455                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1456                 if (fc->valid & CTS_FC_VALID_WWPN) {
1457                         softc->wwpn = fc->wwpn;
1458                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1459                             SYSCTL_CHILDREN(softc->sysctl_tree),
1460                             OID_AUTO, "wwpn", CTLFLAG_RD,
1461                             &softc->wwpn, "World Wide Port Name");
1462                 }
1463         }
1464         cam_periph_release(periph);
1465 }
1466
1467 static int
1468 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1469 {
1470         int error, value;
1471
1472         value = *(int *)arg1;
1473
1474         error = sysctl_handle_int(oidp, &value, 0, req);
1475
1476         if ((error != 0)
1477          || (req->newptr == NULL))
1478                 return (error);
1479
1480         /*
1481          * Acceptable values here are 6, 10, 12 or 16.
1482          */
1483         if (value < 6)
1484                 value = 6;
1485         else if ((value > 6)
1486               && (value <= 10))
1487                 value = 10;
1488         else if ((value > 10)
1489               && (value <= 12))
1490                 value = 12;
1491         else if (value > 12)
1492                 value = 16;
1493
1494         *(int *)arg1 = value;
1495
1496         return (0);
1497 }
1498
1499 static int
1500 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
1501 {
1502         char buf[16];
1503         int error;
1504         const char *p;
1505         int i, value;
1506
1507         value = *(int *)arg1;
1508         if (value < 0 || value > DA_DELETE_MAX)
1509                 p = "UNKNOWN";
1510         else
1511                 p = da_delete_method_names[value];
1512         strncpy(buf, p, sizeof(buf));
1513         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
1514         if (error != 0 || req->newptr == NULL)
1515                 return (error);
1516         for (i = 0; i <= DA_DELETE_MAX; i++) {
1517                 if (strcmp(buf, da_delete_method_names[i]) != 0)
1518                         continue;
1519                 *(int *)arg1 = i;
1520                 return (0);
1521         }
1522         return (EINVAL);
1523 }
1524
1525 static cam_status
1526 daregister(struct cam_periph *periph, void *arg)
1527 {
1528         struct da_softc *softc;
1529         struct ccb_pathinq cpi;
1530         struct ccb_getdev *cgd;
1531         char tmpstr[80];
1532         caddr_t match;
1533
1534         cgd = (struct ccb_getdev *)arg;
1535         if (periph == NULL) {
1536                 printf("daregister: periph was NULL!!\n");
1537                 return(CAM_REQ_CMP_ERR);
1538         }
1539
1540         if (cgd == NULL) {
1541                 printf("daregister: no getdev CCB, can't register device\n");
1542                 return(CAM_REQ_CMP_ERR);
1543         }
1544
1545         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1546             M_NOWAIT|M_ZERO);
1547
1548         if (softc == NULL) {
1549                 printf("daregister: Unable to probe new device. "
1550                        "Unable to allocate softc\n");
1551                 return(CAM_REQ_CMP_ERR);
1552         }
1553
1554         LIST_INIT(&softc->pending_ccbs);
1555         softc->state = DA_STATE_PROBE;
1556         bioq_init(&softc->bio_queue);
1557         bioq_init(&softc->delete_queue);
1558         bioq_init(&softc->delete_run_queue);
1559         if (SID_IS_REMOVABLE(&cgd->inq_data))
1560                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1561         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
1562         softc->unmap_max_lba = 1024*1024*2;
1563
1564         periph->softc = softc;
1565
1566         /*
1567          * See if this device has any quirks.
1568          */
1569         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1570                                (caddr_t)da_quirk_table,
1571                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1572                                sizeof(*da_quirk_table), scsi_inquiry_match);
1573
1574         if (match != NULL)
1575                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1576         else
1577                 softc->quirks = DA_Q_NONE;
1578
1579         /* Check if the SIM does not want 6 byte commands */
1580         bzero(&cpi, sizeof(cpi));
1581         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1582         cpi.ccb_h.func_code = XPT_PATH_INQ;
1583         xpt_action((union ccb *)&cpi);
1584         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1585                 softc->quirks |= DA_Q_NO_6_BYTE;
1586
1587         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1588
1589         /*
1590          * Take an exclusive refcount on the periph while dastart is called
1591          * to finish the probe.  The reference will be dropped in dadone at
1592          * the end of probe.
1593          */
1594         (void)cam_periph_hold(periph, PRIBIO);
1595
1596         /*
1597          * Schedule a periodic event to occasionally send an
1598          * ordered tag to a device.
1599          */
1600         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1601         callout_reset(&softc->sendordered_c,
1602             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1603             dasendorderedtag, softc);
1604
1605         mtx_unlock(periph->sim->mtx);
1606         /*
1607          * RBC devices don't have to support READ(6), only READ(10).
1608          */
1609         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1610                 softc->minimum_cmd_size = 10;
1611         else
1612                 softc->minimum_cmd_size = 6;
1613
1614         /*
1615          * Load the user's default, if any.
1616          */
1617         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1618                  periph->unit_number);
1619         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1620
1621         /*
1622          * 6, 10, 12 and 16 are the currently permissible values.
1623          */
1624         if (softc->minimum_cmd_size < 6)
1625                 softc->minimum_cmd_size = 6;
1626         else if ((softc->minimum_cmd_size > 6)
1627               && (softc->minimum_cmd_size <= 10))
1628                 softc->minimum_cmd_size = 10;
1629         else if ((softc->minimum_cmd_size > 10)
1630               && (softc->minimum_cmd_size <= 12))
1631                 softc->minimum_cmd_size = 12;
1632         else if (softc->minimum_cmd_size > 12)
1633                 softc->minimum_cmd_size = 16;
1634
1635         /* Predict whether device may support READ CAPACITY(16). */
1636         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
1637                 softc->flags |= DA_FLAG_CAN_RC16;
1638                 softc->state = DA_STATE_PROBE2;
1639         }
1640
1641         /*
1642          * Register this media as a disk.
1643          */
1644         softc->disk = disk_alloc();
1645         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1646                           periph->unit_number, 0,
1647                           DEVSTAT_BS_UNAVAILABLE,
1648                           SID_TYPE(&cgd->inq_data) |
1649                           XPORT_DEVSTAT_TYPE(cpi.transport),
1650                           DEVSTAT_PRIORITY_DISK);
1651         softc->disk->d_open = daopen;
1652         softc->disk->d_close = daclose;
1653         softc->disk->d_strategy = dastrategy;
1654         softc->disk->d_dump = dadump;
1655         softc->disk->d_getattr = dagetattr;
1656         softc->disk->d_gone = dadiskgonecb;
1657         softc->disk->d_name = "da";
1658         softc->disk->d_drv1 = periph;
1659         if (cpi.maxio == 0)
1660                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1661         else if (cpi.maxio > MAXPHYS)
1662                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1663         else
1664                 softc->disk->d_maxsize = cpi.maxio;
1665         softc->disk->d_unit = periph->unit_number;
1666         softc->disk->d_flags = 0;
1667         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1668                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1669         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1670             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1671         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1672         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1673             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1674             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1675         softc->disk->d_hba_vendor = cpi.hba_vendor;
1676         softc->disk->d_hba_device = cpi.hba_device;
1677         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1678         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1679
1680         /*
1681          * Acquire a reference to the periph before we register with GEOM.
1682          * We'll release this reference once GEOM calls us back (via
1683          * dadiskgonecb()) telling us that our provider has been freed.
1684          */
1685         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1686                 xpt_print(periph->path, "%s: lost periph during "
1687                           "registration!\n", __func__);
1688                 mtx_lock(periph->sim->mtx);
1689                 return (CAM_REQ_CMP_ERR);
1690         }
1691
1692         disk_create(softc->disk, DISK_VERSION);
1693         mtx_lock(periph->sim->mtx);
1694
1695         /*
1696          * Add async callbacks for events of interest.
1697          * I don't bother checking if this fails as,
1698          * in most cases, the system will function just
1699          * fine without them and the only alternative
1700          * would be to not attach the device on failure.
1701          */
1702         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET
1703                          | AC_LOST_DEVICE | AC_ADVINFO_CHANGED,
1704                            daasync, periph, periph->path);
1705
1706         /*
1707          * Emit an attribute changed notification just in case
1708          * physical path information arrived before our async
1709          * event handler was registered, but after anyone attaching
1710          * to our disk device polled it.
1711          */
1712         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
1713
1714         xpt_schedule(periph, CAM_PRIORITY_DEV);
1715
1716         return(CAM_REQ_CMP);
1717 }
1718
1719 static void
1720 dastart(struct cam_periph *periph, union ccb *start_ccb)
1721 {
1722         struct da_softc *softc;
1723
1724         softc = (struct da_softc *)periph->softc;
1725
1726         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
1727
1728         switch (softc->state) {
1729         case DA_STATE_NORMAL:
1730         {
1731                 struct bio *bp, *bp1;
1732                 uint8_t tag_code;
1733
1734                 /* Execute immediate CCB if waiting. */
1735                 if (periph->immediate_priority <= periph->pinfo.priority) {
1736                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1737                                         ("queuing for immediate ccb\n"));
1738                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1739                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1740                                           periph_links.sle);
1741                         periph->immediate_priority = CAM_PRIORITY_NONE;
1742                         wakeup(&periph->ccb_list);
1743                         /* May have more work to do, so ensure we stay scheduled */
1744                         daschedule(periph);
1745                         break;
1746                 }
1747
1748                 /* Run BIO_DELETE if not running yet. */
1749                 if (!softc->delete_running &&
1750                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
1751                     uint64_t lba;
1752                     u_int count;
1753
1754                     if (softc->delete_method == DA_DELETE_UNMAP) {
1755                         uint8_t *buf = softc->unmap_buf;
1756                         uint64_t lastlba = (uint64_t)-1;
1757                         uint32_t lastcount = 0;
1758                         int blocks = 0, off, ranges = 0;
1759
1760                         softc->delete_running = 1;
1761                         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
1762                         bp1 = bp;
1763                         do {
1764                                 bioq_remove(&softc->delete_queue, bp1);
1765                                 if (bp1 != bp)
1766                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
1767                                 lba = bp1->bio_pblkno;
1768                                 count = bp1->bio_bcount / softc->params.secsize;
1769
1770                                 /* Try to extend the previous range. */
1771                                 if (lba == lastlba) {
1772                                         lastcount += count;
1773                                         off = (ranges - 1) * 16 + 8;
1774                                         scsi_ulto4b(lastcount, &buf[off + 8]);
1775                                 } else if (count > 0) {
1776                                         off = ranges * 16 + 8;
1777                                         scsi_u64to8b(lba, &buf[off + 0]);
1778                                         scsi_ulto4b(count, &buf[off + 8]);
1779                                         lastcount = count;
1780                                         ranges++;
1781                                 }
1782                                 blocks += count;
1783                                 lastlba = lba + count;
1784                                 bp1 = bioq_first(&softc->delete_queue);
1785                                 if (bp1 == NULL ||
1786                                     ranges >= softc->unmap_max_ranges ||
1787                                     blocks + bp1->bio_bcount /
1788                                      softc->params.secsize > softc->unmap_max_lba)
1789                                         break;
1790                         } while (1);
1791                         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
1792                         scsi_ulto2b(ranges * 16, &buf[2]);
1793
1794                         scsi_unmap(&start_ccb->csio,
1795                                         /*retries*/da_retry_count,
1796                                         /*cbfcnp*/dadone,
1797                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
1798                                         /*byte2*/0,
1799                                         /*data_ptr*/ buf,
1800                                         /*dxfer_len*/ ranges * 16 + 8,
1801                                         /*sense_len*/SSD_FULL_SIZE,
1802                                         da_default_timeout * 1000);
1803                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
1804                         goto out;
1805                     } else if (softc->delete_method == DA_DELETE_ZERO ||
1806                                softc->delete_method == DA_DELETE_WS10 ||
1807                                softc->delete_method == DA_DELETE_WS16) {
1808                         softc->delete_running = 1;
1809                         lba = bp->bio_pblkno;
1810                         count = 0;
1811                         bp1 = bp;
1812                         do {
1813                                 bioq_remove(&softc->delete_queue, bp1);
1814                                 if (bp1 != bp)
1815                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
1816                                 count += bp1->bio_bcount / softc->params.secsize;
1817                                 bp1 = bioq_first(&softc->delete_queue);
1818                                 if (bp1 == NULL ||
1819                                     lba + count != bp1->bio_pblkno ||
1820                                     count + bp1->bio_bcount /
1821                                      softc->params.secsize > 0xffff)
1822                                         break;
1823                         } while (1);
1824
1825                         scsi_write_same(&start_ccb->csio,
1826                                         /*retries*/da_retry_count,
1827                                         /*cbfcnp*/dadone,
1828                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
1829                                         /*byte2*/softc->delete_method ==
1830                                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
1831                                         softc->delete_method ==
1832                                             DA_DELETE_WS16 ? 16 : 10,
1833                                         /*lba*/lba,
1834                                         /*block_count*/count,
1835                                         /*data_ptr*/ __DECONST(void *,
1836                                             zero_region),
1837                                         /*dxfer_len*/ softc->params.secsize,
1838                                         /*sense_len*/SSD_FULL_SIZE,
1839                                         da_default_timeout * 1000);
1840                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
1841                         goto out;
1842                     } else {
1843                         bioq_flush(&softc->delete_queue, NULL, 0);
1844                         /* FALLTHROUGH */
1845                     }
1846                 }
1847
1848                 /* Run regular command. */
1849                 bp = bioq_takefirst(&softc->bio_queue);
1850                 if (bp == NULL) {
1851                         xpt_release_ccb(start_ccb);
1852                         break;
1853                 }
1854
1855                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
1856                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1857                         softc->flags &= ~DA_FLAG_NEED_OTAG;
1858                         softc->ordered_tag_count++;
1859                         tag_code = MSG_ORDERED_Q_TAG;
1860                 } else {
1861                         tag_code = MSG_SIMPLE_Q_TAG;
1862                 }
1863
1864                 switch (bp->bio_cmd) {
1865                 case BIO_READ:
1866                 case BIO_WRITE:
1867                         scsi_read_write(&start_ccb->csio,
1868                                         /*retries*/da_retry_count,
1869                                         /*cbfcnp*/dadone,
1870                                         /*tag_action*/tag_code,
1871                                         /*read_op*/bp->bio_cmd
1872                                                 == BIO_READ,
1873                                         /*byte2*/0,
1874                                         softc->minimum_cmd_size,
1875                                         /*lba*/bp->bio_pblkno,
1876                                         /*block_count*/bp->bio_bcount /
1877                                         softc->params.secsize,
1878                                         /*data_ptr*/ bp->bio_data,
1879                                         /*dxfer_len*/ bp->bio_bcount,
1880                                         /*sense_len*/SSD_FULL_SIZE,
1881                                         da_default_timeout * 1000);
1882                         break;
1883                 case BIO_FLUSH:
1884                         /*
1885                          * BIO_FLUSH doesn't currently communicate
1886                          * range data, so we synchronize the cache
1887                          * over the whole disk.  We also force
1888                          * ordered tag semantics the flush applies
1889                          * to all previously queued I/O.
1890                          */
1891                         scsi_synchronize_cache(&start_ccb->csio,
1892                                                /*retries*/1,
1893                                                /*cbfcnp*/dadone,
1894                                                MSG_ORDERED_Q_TAG,
1895                                                /*begin_lba*/0,
1896                                                /*lb_count*/0,
1897                                                SSD_FULL_SIZE,
1898                                                da_default_timeout*1000);
1899                         break;
1900                 }
1901                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1902
1903 out:
1904                 /*
1905                  * Block out any asyncronous callbacks
1906                  * while we touch the pending ccb list.
1907                  */
1908                 LIST_INSERT_HEAD(&softc->pending_ccbs,
1909                                  &start_ccb->ccb_h, periph_links.le);
1910                 softc->outstanding_cmds++;
1911
1912                 /* We expect a unit attention from this device */
1913                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1914                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1915                         softc->flags &= ~DA_FLAG_RETRY_UA;
1916                 }
1917
1918                 start_ccb->ccb_h.ccb_bp = bp;
1919                 xpt_action(start_ccb);
1920
1921                 /* May have more work to do, so ensure we stay scheduled */
1922                 daschedule(periph);
1923                 break;
1924         }
1925         case DA_STATE_PROBE:
1926         {
1927                 struct ccb_scsiio *csio;
1928                 struct scsi_read_capacity_data *rcap;
1929
1930                 rcap = (struct scsi_read_capacity_data *)
1931                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1932                 if (rcap == NULL) {
1933                         printf("dastart: Couldn't malloc read_capacity data\n");
1934                         /* da_free_periph??? */
1935                         break;
1936                 }
1937                 csio = &start_ccb->csio;
1938                 scsi_read_capacity(csio,
1939                                    /*retries*/4,
1940                                    dadone,
1941                                    MSG_SIMPLE_Q_TAG,
1942                                    rcap,
1943                                    SSD_FULL_SIZE,
1944                                    /*timeout*/5000);
1945                 start_ccb->ccb_h.ccb_bp = NULL;
1946                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1947                 xpt_action(start_ccb);
1948                 break;
1949         }
1950         case DA_STATE_PROBE2:
1951         {
1952                 struct ccb_scsiio *csio;
1953                 struct scsi_read_capacity_data_long *rcaplong;
1954
1955                 rcaplong = (struct scsi_read_capacity_data_long *)
1956                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1957                 if (rcaplong == NULL) {
1958                         printf("dastart: Couldn't malloc read_capacity data\n");
1959                         /* da_free_periph??? */
1960                         break;
1961                 }
1962                 csio = &start_ccb->csio;
1963                 scsi_read_capacity_16(csio,
1964                                       /*retries*/ 4,
1965                                       /*cbfcnp*/ dadone,
1966                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
1967                                       /*lba*/ 0,
1968                                       /*reladr*/ 0,
1969                                       /*pmi*/ 0,
1970                                       rcaplong,
1971                                       /*sense_len*/ SSD_FULL_SIZE,
1972                                       /*timeout*/ 60000);
1973                 start_ccb->ccb_h.ccb_bp = NULL;
1974                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1975                 xpt_action(start_ccb);
1976                 break;
1977         }
1978         }
1979 }
1980
1981 static int
1982 cmd6workaround(union ccb *ccb)
1983 {
1984         struct scsi_rw_6 cmd6;
1985         struct scsi_rw_10 *cmd10;
1986         struct da_softc *softc;
1987         u_int8_t *cdb;
1988         struct bio *bp;
1989         int frozen;
1990
1991         cdb = ccb->csio.cdb_io.cdb_bytes;
1992         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1993
1994         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
1995                 if (softc->delete_method == DA_DELETE_UNMAP) {
1996                         xpt_print(ccb->ccb_h.path, "UNMAP is not supported, "
1997                             "switching to WRITE SAME(16) with UNMAP.\n");
1998                         softc->delete_method = DA_DELETE_WS16;
1999                 } else if (softc->delete_method == DA_DELETE_WS16) {
2000                         xpt_print(ccb->ccb_h.path,
2001                             "WRITE SAME(16) with UNMAP is not supported, "
2002                             "disabling BIO_DELETE.\n");
2003                         softc->delete_method = DA_DELETE_DISABLE;
2004                 } else if (softc->delete_method == DA_DELETE_WS10) {
2005                         xpt_print(ccb->ccb_h.path,
2006                             "WRITE SAME(10) with UNMAP is not supported, "
2007                             "disabling BIO_DELETE.\n");
2008                         softc->delete_method = DA_DELETE_DISABLE;
2009                 } else if (softc->delete_method == DA_DELETE_ZERO) {
2010                         xpt_print(ccb->ccb_h.path,
2011                             "WRITE SAME(10) is not supported, "
2012                             "disabling BIO_DELETE.\n");
2013                         softc->delete_method = DA_DELETE_DISABLE;
2014                 } else
2015                         softc->delete_method = DA_DELETE_DISABLE;
2016                 while ((bp = bioq_takefirst(&softc->delete_run_queue))
2017                     != NULL)
2018                         bioq_disksort(&softc->delete_queue, bp);
2019                 bioq_insert_tail(&softc->delete_queue,
2020                     (struct bio *)ccb->ccb_h.ccb_bp);
2021                 ccb->ccb_h.ccb_bp = NULL;
2022                 return (0);
2023         }
2024
2025         /* Translation only possible if CDB is an array and cmd is R/W6 */
2026         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2027             (*cdb != READ_6 && *cdb != WRITE_6))
2028                 return 0;
2029
2030         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2031             "increasing minimum_cmd_size to 10.\n");
2032         softc->minimum_cmd_size = 10;
2033
2034         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2035         cmd10 = (struct scsi_rw_10 *)cdb;
2036         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2037         cmd10->byte2 = 0;
2038         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2039         cmd10->reserved = 0;
2040         scsi_ulto2b(cmd6.length, cmd10->length);
2041         cmd10->control = cmd6.control;
2042         ccb->csio.cdb_len = sizeof(*cmd10);
2043
2044         /* Requeue request, unfreezing queue if necessary */
2045         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2046         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2047         xpt_action(ccb);
2048         if (frozen) {
2049                 cam_release_devq(ccb->ccb_h.path,
2050                                  /*relsim_flags*/0,
2051                                  /*reduction*/0,
2052                                  /*timeout*/0,
2053                                  /*getcount_only*/0);
2054         }
2055         return (ERESTART);
2056 }
2057
2058 static void
2059 dadone(struct cam_periph *periph, union ccb *done_ccb)
2060 {
2061         struct da_softc *softc;
2062         struct ccb_scsiio *csio;
2063         u_int32_t  priority;
2064
2065         softc = (struct da_softc *)periph->softc;
2066         priority = done_ccb->ccb_h.pinfo.priority;
2067
2068         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2069
2070         csio = &done_ccb->csio;
2071         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
2072         case DA_CCB_BUFFER_IO:
2073         case DA_CCB_DELETE:
2074         {
2075                 struct bio *bp, *bp1;
2076
2077                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2078                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2079                         int error;
2080                         int sf;
2081
2082                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2083                                 sf = SF_RETRY_UA;
2084                         else
2085                                 sf = 0;
2086
2087                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2088                         if (error == ERESTART) {
2089                                 /*
2090                                  * A retry was scheuled, so
2091                                  * just return.
2092                                  */
2093                                 return;
2094                         }
2095                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2096                         if (error != 0) {
2097                                 int queued_error;
2098
2099                                 /*
2100                                  * return all queued I/O with EIO, so that
2101                                  * the client can retry these I/Os in the
2102                                  * proper order should it attempt to recover.
2103                                  */
2104                                 queued_error = EIO;
2105
2106                                 if (error == ENXIO
2107                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2108                                         /*
2109                                          * Catastrophic error.  Mark our pack as
2110                                          * invalid.
2111                                          */
2112                                         /*
2113                                          * XXX See if this is really a media
2114                                          * XXX change first?
2115                                          */
2116                                         xpt_print(periph->path,
2117                                             "Invalidating pack\n");
2118                                         softc->flags |= DA_FLAG_PACK_INVALID;
2119                                         queued_error = ENXIO;
2120                                 }
2121                                 bioq_flush(&softc->bio_queue, NULL,
2122                                            queued_error);
2123                                 if (bp != NULL) {
2124                                         bp->bio_error = error;
2125                                         bp->bio_resid = bp->bio_bcount;
2126                                         bp->bio_flags |= BIO_ERROR;
2127                                 }
2128                         } else if (bp != NULL) {
2129                                 bp->bio_resid = csio->resid;
2130                                 bp->bio_error = 0;
2131                                 if (bp->bio_resid != 0)
2132                                         bp->bio_flags |= BIO_ERROR;
2133                         }
2134                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2135                                 cam_release_devq(done_ccb->ccb_h.path,
2136                                                  /*relsim_flags*/0,
2137                                                  /*reduction*/0,
2138                                                  /*timeout*/0,
2139                                                  /*getcount_only*/0);
2140                 } else if (bp != NULL) {
2141                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2142                                 panic("REQ_CMP with QFRZN");
2143                         bp->bio_resid = csio->resid;
2144                         if (csio->resid > 0)
2145                                 bp->bio_flags |= BIO_ERROR;
2146                         if (softc->error_inject != 0) {
2147                                 bp->bio_error = softc->error_inject;
2148                                 bp->bio_resid = bp->bio_bcount;
2149                                 bp->bio_flags |= BIO_ERROR;
2150                                 softc->error_inject = 0;
2151                         }
2152
2153                 }
2154
2155                 /*
2156                  * Block out any asyncronous callbacks
2157                  * while we touch the pending ccb list.
2158                  */
2159                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
2160                 softc->outstanding_cmds--;
2161                 if (softc->outstanding_cmds == 0)
2162                         softc->flags |= DA_FLAG_WENT_IDLE;
2163
2164                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
2165                         xpt_print(periph->path, "oustanding %d\n",
2166                                   softc->outstanding_cmds);
2167                 }
2168
2169                 if ((csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) ==
2170                     DA_CCB_DELETE) {
2171                         while ((bp1 = bioq_takefirst(&softc->delete_run_queue))
2172                             != NULL) {
2173                                 bp1->bio_resid = bp->bio_resid;
2174                                 bp1->bio_error = bp->bio_error;
2175                                 if (bp->bio_flags & BIO_ERROR)
2176                                         bp1->bio_flags |= BIO_ERROR;
2177                                 biodone(bp1);
2178                         }
2179                         softc->delete_running = 0;
2180                         if (bp != NULL)
2181                                 biodone(bp);
2182                         daschedule(periph);
2183                 } else if (bp != NULL)
2184                         biodone(bp);
2185                 break;
2186         }
2187         case DA_CCB_PROBE:
2188         case DA_CCB_PROBE2:
2189         {
2190                 struct     scsi_read_capacity_data *rdcap;
2191                 struct     scsi_read_capacity_data_long *rcaplong;
2192                 char       announce_buf[80];
2193
2194                 rdcap = NULL;
2195                 rcaplong = NULL;
2196                 if (softc->state == DA_STATE_PROBE)
2197                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
2198                 else
2199                         rcaplong = (struct scsi_read_capacity_data_long *)
2200                                 csio->data_ptr;
2201
2202                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
2203                         struct disk_params *dp;
2204                         uint32_t block_size;
2205                         uint64_t maxsector;
2206                         u_int lbppbe;   /* LB per physical block exponent. */
2207                         u_int lalba;    /* Lowest aligned LBA. */
2208
2209                         if (softc->state == DA_STATE_PROBE) {
2210                                 block_size = scsi_4btoul(rdcap->length);
2211                                 maxsector = scsi_4btoul(rdcap->addr);
2212                                 lbppbe = 0;
2213                                 lalba = 0;
2214
2215                                 /*
2216                                  * According to SBC-2, if the standard 10
2217                                  * byte READ CAPACITY command returns 2^32,
2218                                  * we should issue the 16 byte version of
2219                                  * the command, since the device in question
2220                                  * has more sectors than can be represented
2221                                  * with the short version of the command.
2222                                  */
2223                                 if (maxsector == 0xffffffff) {
2224                                         softc->state = DA_STATE_PROBE2;
2225                                         free(rdcap, M_SCSIDA);
2226                                         xpt_release_ccb(done_ccb);
2227                                         xpt_schedule(periph, priority);
2228                                         return;
2229                                 }
2230                         } else {
2231                                 block_size = scsi_4btoul(rcaplong->length);
2232                                 maxsector = scsi_8btou64(rcaplong->addr);
2233                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2234                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2235                         }
2236
2237                         /*
2238                          * Because GEOM code just will panic us if we
2239                          * give them an 'illegal' value we'll avoid that
2240                          * here.
2241                          */
2242                         if (block_size == 0 && maxsector == 0) {
2243                                 snprintf(announce_buf, sizeof(announce_buf),
2244                                         "0MB (no media?)");
2245                         } else if (block_size >= MAXPHYS || block_size == 0) {
2246                                 xpt_print(periph->path,
2247                                     "unsupportable block size %ju\n",
2248                                     (uintmax_t) block_size);
2249                                 announce_buf[0] = '\0';
2250                                 cam_periph_invalidate(periph);
2251                         } else {
2252                                 dasetgeom(periph, block_size, maxsector,
2253                                     lbppbe, lalba & SRC16_LALBA);
2254                                 if ((lalba & SRC16_LBPME) &&
2255                                     softc->delete_method == DA_DELETE_NONE)
2256                                         softc->delete_method = DA_DELETE_UNMAP;
2257                                 dp = &softc->params;
2258                                 snprintf(announce_buf, sizeof(announce_buf),
2259                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
2260                                         "%dC)", (uintmax_t)
2261                                         (((uintmax_t)dp->secsize *
2262                                         dp->sectors) / (1024*1024)),
2263                                         (uintmax_t)dp->sectors,
2264                                         dp->secsize, dp->heads,
2265                                         dp->secs_per_track, dp->cylinders);
2266                         }
2267                 } else {
2268                         int     error;
2269
2270                         announce_buf[0] = '\0';
2271
2272                         /*
2273                          * Retry any UNIT ATTENTION type errors.  They
2274                          * are expected at boot.
2275                          */
2276                         error = daerror(done_ccb, CAM_RETRY_SELTO,
2277                                         SF_RETRY_UA|SF_NO_PRINT);
2278                         if (error == ERESTART) {
2279                                 /*
2280                                  * A retry was scheuled, so
2281                                  * just return.
2282                                  */
2283                                 return;
2284                         } else if (error != 0) {
2285                                 struct scsi_sense_data *sense;
2286                                 int asc, ascq;
2287                                 int sense_key, error_code;
2288                                 int have_sense;
2289                                 cam_status status;
2290                                 struct ccb_getdev cgd;
2291
2292                                 /* Don't wedge this device's queue */
2293                                 status = done_ccb->ccb_h.status;
2294                                 if ((status & CAM_DEV_QFRZN) != 0)
2295                                         cam_release_devq(done_ccb->ccb_h.path,
2296                                                          /*relsim_flags*/0,
2297                                                          /*reduction*/0,
2298                                                          /*timeout*/0,
2299                                                          /*getcount_only*/0);
2300
2301
2302                                 xpt_setup_ccb(&cgd.ccb_h,
2303                                               done_ccb->ccb_h.path,
2304                                               CAM_PRIORITY_NORMAL);
2305                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2306                                 xpt_action((union ccb *)&cgd);
2307
2308                                 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
2309                                  || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
2310                                  || ((status & CAM_AUTOSNS_VALID) == 0))
2311                                         have_sense = FALSE;
2312                                 else
2313                                         have_sense = TRUE;
2314
2315                                 if (have_sense) {
2316                                         sense = &csio->sense_data;
2317                                         scsi_extract_sense_len(sense,
2318                                             csio->sense_len - csio->sense_resid,
2319                                             &error_code, &sense_key, &asc,
2320                                             &ascq, /*show_errors*/ 1);
2321                                 }
2322                                 /*
2323                                  * If we tried READ CAPACITY(16) and failed,
2324                                  * fallback to READ CAPACITY(10).
2325                                  */
2326                                 if ((softc->state == DA_STATE_PROBE2) &&
2327                                     (softc->flags & DA_FLAG_CAN_RC16) &&
2328                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
2329                                         CAM_REQ_INVALID) ||
2330                                      ((have_sense) &&
2331                                       (error_code == SSD_CURRENT_ERROR) &&
2332                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
2333                                         softc->flags &= ~DA_FLAG_CAN_RC16;
2334                                         softc->state = DA_STATE_PROBE;
2335                                         free(rdcap, M_SCSIDA);
2336                                         xpt_release_ccb(done_ccb);
2337                                         xpt_schedule(periph, priority);
2338                                         return;
2339                                 } else
2340                                 /*
2341                                  * Attach to anything that claims to be a
2342                                  * direct access or optical disk device,
2343                                  * as long as it doesn't return a "Logical
2344                                  * unit not supported" (0x25) error.
2345                                  */
2346                                 if ((have_sense) && (asc != 0x25)
2347                                  && (error_code == SSD_CURRENT_ERROR)) {
2348                                         const char *sense_key_desc;
2349                                         const char *asc_desc;
2350
2351                                         scsi_sense_desc(sense_key, asc, ascq,
2352                                                         &cgd.inq_data,
2353                                                         &sense_key_desc,
2354                                                         &asc_desc);
2355                                         snprintf(announce_buf,
2356                                             sizeof(announce_buf),
2357                                                 "Attempt to query device "
2358                                                 "size failed: %s, %s",
2359                                                 sense_key_desc,
2360                                                 asc_desc);
2361                                 } else {
2362                                         if (have_sense)
2363                                                 scsi_sense_print(
2364                                                         &done_ccb->csio);
2365                                         else {
2366                                                 xpt_print(periph->path,
2367                                                     "got CAM status %#x\n",
2368                                                     done_ccb->ccb_h.status);
2369                                         }
2370
2371                                         xpt_print(periph->path, "fatal error, "
2372                                             "failed to attach to device\n");
2373
2374                                         /*
2375                                          * Free up resources.
2376                                          */
2377                                         cam_periph_invalidate(periph);
2378                                 }
2379                         }
2380                 }
2381                 free(csio->data_ptr, M_SCSIDA);
2382                 if (announce_buf[0] != '\0') {
2383                         /*
2384                          * Create our sysctl variables, now that we know
2385                          * we have successfully attached.
2386                          */
2387                         /* increase the refcount */
2388                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2389                                 taskqueue_enqueue(taskqueue_thread,
2390                                                   &softc->sysctl_task);
2391                                 xpt_announce_periph(periph, announce_buf);
2392                         } else {
2393                                 xpt_print(periph->path, "fatal error, "
2394                                     "could not acquire reference count\n");
2395                         }
2396
2397                 }
2398                 softc->state = DA_STATE_NORMAL;
2399                 /*
2400                  * Since our peripheral may be invalidated by an error
2401                  * above or an external event, we must release our CCB
2402                  * before releasing the probe lock on the peripheral.
2403                  * The peripheral will only go away once the last lock
2404                  * is removed, and we need it around for the CCB release
2405                  * operation.
2406                  */
2407                 xpt_release_ccb(done_ccb);
2408                 cam_periph_unhold(periph);
2409                 return;
2410         }
2411         case DA_CCB_WAITING:
2412         {
2413                 /* Caller will release the CCB */
2414                 wakeup(&done_ccb->ccb_h.cbfcnp);
2415                 return;
2416         }
2417         case DA_CCB_DUMP:
2418                 /* No-op.  We're polling */
2419                 return;
2420         default:
2421                 break;
2422         }
2423         xpt_release_ccb(done_ccb);
2424 }
2425
2426 static int
2427 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2428 {
2429         struct da_softc   *softc;
2430         struct cam_periph *periph;
2431         int error;
2432
2433         periph = xpt_path_periph(ccb->ccb_h.path);
2434         softc = (struct da_softc *)periph->softc;
2435
2436         /*
2437          * Automatically detect devices that do not support
2438          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
2439          */
2440         error = 0;
2441         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2442                 error = cmd6workaround(ccb);
2443         } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2444                    CAM_SCSI_STATUS_ERROR)
2445          && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
2446          && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
2447          && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
2448          && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2449                 int sense_key, error_code, asc, ascq;
2450
2451                 scsi_extract_sense(&ccb->csio.sense_data,
2452                                    &error_code, &sense_key, &asc, &ascq);
2453                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2454                         error = cmd6workaround(ccb);
2455         }
2456         if (error == ERESTART)
2457                 return (ERESTART);
2458
2459         /*
2460          * XXX
2461          * Until we have a better way of doing pack validation,
2462          * don't treat UAs as errors.
2463          */
2464         sense_flags |= SF_RETRY_UA;
2465         return(cam_periph_error(ccb, cam_flags, sense_flags,
2466                                 &softc->saved_ccb));
2467 }
2468
2469 static void
2470 daprevent(struct cam_periph *periph, int action)
2471 {
2472         struct  da_softc *softc;
2473         union   ccb *ccb;
2474         int     error;
2475
2476         softc = (struct da_softc *)periph->softc;
2477
2478         if (((action == PR_ALLOW)
2479           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2480          || ((action == PR_PREVENT)
2481           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2482                 return;
2483         }
2484
2485         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2486
2487         scsi_prevent(&ccb->csio,
2488                      /*retries*/1,
2489                      /*cbcfp*/dadone,
2490                      MSG_SIMPLE_Q_TAG,
2491                      action,
2492                      SSD_FULL_SIZE,
2493                      5000);
2494
2495         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
2496             SF_RETRY_UA | SF_QUIET_IR, softc->disk->d_devstat);
2497
2498         if (error == 0) {
2499                 if (action == PR_ALLOW)
2500                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
2501                 else
2502                         softc->flags |= DA_FLAG_PACK_LOCKED;
2503         }
2504
2505         xpt_release_ccb(ccb);
2506 }
2507
2508 static int
2509 dagetcapacity(struct cam_periph *periph)
2510 {
2511         struct da_softc *softc;
2512         union ccb *ccb;
2513         struct scsi_read_capacity_data *rcap;
2514         struct scsi_read_capacity_data_long *rcaplong;
2515         uint32_t block_len;
2516         uint64_t maxsector;
2517         int error, rc16failed;
2518         u_int32_t sense_flags;
2519         u_int lbppbe;   /* Logical blocks per physical block exponent. */
2520         u_int lalba;    /* Lowest aligned LBA. */
2521
2522         softc = (struct da_softc *)periph->softc;
2523         block_len = 0;
2524         maxsector = 0;
2525         lbppbe = 0;
2526         lalba = 0;
2527         error = 0;
2528         rc16failed = 0;
2529         sense_flags = SF_RETRY_UA;
2530         if (softc->flags & DA_FLAG_PACK_REMOVABLE)
2531                 sense_flags |= SF_NO_PRINT;
2532
2533         /* Do a read capacity */
2534         rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
2535                                                         M_SCSIDA,
2536                                                         M_NOWAIT | M_ZERO);
2537         if (rcap == NULL)
2538                 return (ENOMEM);
2539         rcaplong = (struct scsi_read_capacity_data_long *)rcap;
2540
2541         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2542
2543         /* Try READ CAPACITY(16) first if we think it should work. */
2544         if (softc->flags & DA_FLAG_CAN_RC16) {
2545                 scsi_read_capacity_16(&ccb->csio,
2546                               /*retries*/ 4,
2547                               /*cbfcnp*/ dadone,
2548                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2549                               /*lba*/ 0,
2550                               /*reladr*/ 0,
2551                               /*pmi*/ 0,
2552                               rcaplong,
2553                               /*sense_len*/ SSD_FULL_SIZE,
2554                               /*timeout*/ 60000);
2555                 ccb->ccb_h.ccb_bp = NULL;
2556
2557                 error = cam_periph_runccb(ccb, daerror,
2558                                   /*cam_flags*/CAM_RETRY_SELTO,
2559                                   sense_flags,
2560                                   softc->disk->d_devstat);
2561                 if (error == 0)
2562                         goto rc16ok;
2563
2564                 /* If we got ILLEGAL REQUEST, do not prefer RC16 any more. */
2565                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2566                      CAM_REQ_INVALID) {
2567                         softc->flags &= ~DA_FLAG_CAN_RC16;
2568                 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2569                      CAM_SCSI_STATUS_ERROR) &&
2570                     (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) &&
2571                     (ccb->ccb_h.status & CAM_AUTOSNS_VALID) &&
2572                     ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) &&
2573                     ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2574                         int sense_key, error_code, asc, ascq;
2575
2576                         scsi_extract_sense(&ccb->csio.sense_data,
2577                                    &error_code, &sense_key, &asc, &ascq);
2578                         if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2579                                 softc->flags &= ~DA_FLAG_CAN_RC16;
2580                 }
2581                 rc16failed = 1;
2582         }
2583
2584         /* Do READ CAPACITY(10). */
2585         scsi_read_capacity(&ccb->csio,
2586                            /*retries*/4,
2587                            /*cbfncp*/dadone,
2588                            MSG_SIMPLE_Q_TAG,
2589                            rcap,
2590                            SSD_FULL_SIZE,
2591                            /*timeout*/60000);
2592         ccb->ccb_h.ccb_bp = NULL;
2593
2594         error = cam_periph_runccb(ccb, daerror,
2595                                   /*cam_flags*/CAM_RETRY_SELTO,
2596                                   sense_flags,
2597                                   softc->disk->d_devstat);
2598         if (error == 0) {
2599                 block_len = scsi_4btoul(rcap->length);
2600                 maxsector = scsi_4btoul(rcap->addr);
2601
2602                 if (maxsector != 0xffffffff || rc16failed)
2603                         goto done;
2604         } else
2605                 goto done;
2606
2607         /* If READ CAPACITY(10) returned overflow, use READ CAPACITY(16) */
2608         scsi_read_capacity_16(&ccb->csio,
2609                               /*retries*/ 4,
2610                               /*cbfcnp*/ dadone,
2611                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2612                               /*lba*/ 0,
2613                               /*reladr*/ 0,
2614                               /*pmi*/ 0,
2615                               rcaplong,
2616                               /*sense_len*/ SSD_FULL_SIZE,
2617                               /*timeout*/ 60000);
2618         ccb->ccb_h.ccb_bp = NULL;
2619
2620         error = cam_periph_runccb(ccb, daerror,
2621                                   /*cam_flags*/CAM_RETRY_SELTO,
2622                                   sense_flags,
2623                                   softc->disk->d_devstat);
2624         if (error == 0) {
2625 rc16ok:
2626                 block_len = scsi_4btoul(rcaplong->length);
2627                 maxsector = scsi_8btou64(rcaplong->addr);
2628                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2629                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2630         }
2631
2632 done:
2633
2634         if (error == 0) {
2635                 if (block_len >= MAXPHYS || block_len == 0) {
2636                         xpt_print(periph->path,
2637                             "unsupportable block size %ju\n",
2638                             (uintmax_t) block_len);
2639                         error = EINVAL;
2640                 } else {
2641                         dasetgeom(periph, block_len, maxsector,
2642                             lbppbe, lalba & SRC16_LALBA);
2643                         if ((lalba & SRC16_LBPME) &&
2644                             softc->delete_method == DA_DELETE_NONE)
2645                                 softc->delete_method = DA_DELETE_UNMAP;
2646                 }
2647         }
2648
2649         xpt_release_ccb(ccb);
2650
2651         free(rcap, M_SCSIDA);
2652
2653         return (error);
2654 }
2655
2656 static void
2657 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
2658     u_int lbppbe, u_int lalba)
2659 {
2660         struct ccb_calc_geometry ccg;
2661         struct da_softc *softc;
2662         struct disk_params *dp;
2663
2664         softc = (struct da_softc *)periph->softc;
2665
2666         dp = &softc->params;
2667         dp->secsize = block_len;
2668         dp->sectors = maxsector + 1;
2669         if (lbppbe > 0) {
2670                 dp->stripesize = block_len << lbppbe;
2671                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
2672                     dp->stripesize;
2673         } else if (softc->quirks & DA_Q_4K) {
2674                 dp->stripesize = 4096;
2675                 dp->stripeoffset = 0;
2676         } else {
2677                 dp->stripesize = 0;
2678                 dp->stripeoffset = 0;
2679         }
2680         /*
2681          * Have the controller provide us with a geometry
2682          * for this disk.  The only time the geometry
2683          * matters is when we boot and the controller
2684          * is the only one knowledgeable enough to come
2685          * up with something that will make this a bootable
2686          * device.
2687          */
2688         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2689         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2690         ccg.block_size = dp->secsize;
2691         ccg.volume_size = dp->sectors;
2692         ccg.heads = 0;
2693         ccg.secs_per_track = 0;
2694         ccg.cylinders = 0;
2695         xpt_action((union ccb*)&ccg);
2696         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2697                 /*
2698                  * We don't know what went wrong here- but just pick
2699                  * a geometry so we don't have nasty things like divide
2700                  * by zero.
2701                  */
2702                 dp->heads = 255;
2703                 dp->secs_per_track = 255;
2704                 dp->cylinders = dp->sectors / (255 * 255);
2705                 if (dp->cylinders == 0) {
2706                         dp->cylinders = 1;
2707                 }
2708         } else {
2709                 dp->heads = ccg.heads;
2710                 dp->secs_per_track = ccg.secs_per_track;
2711                 dp->cylinders = ccg.cylinders;
2712         }
2713 }
2714
2715 static void
2716 dasendorderedtag(void *arg)
2717 {
2718         struct da_softc *softc = arg;
2719
2720         if (da_send_ordered) {
2721                 if ((softc->ordered_tag_count == 0)
2722                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2723                         softc->flags |= DA_FLAG_NEED_OTAG;
2724                 }
2725                 if (softc->outstanding_cmds > 0)
2726                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2727
2728                 softc->ordered_tag_count = 0;
2729         }
2730         /* Queue us up again */
2731         callout_reset(&softc->sendordered_c,
2732             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2733             dasendorderedtag, softc);
2734 }
2735
2736 /*
2737  * Step through all DA peripheral drivers, and if the device is still open,
2738  * sync the disk cache to physical media.
2739  */
2740 static void
2741 dashutdown(void * arg, int howto)
2742 {
2743         struct cam_periph *periph;
2744         struct da_softc *softc;
2745         int error;
2746
2747         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2748                 union ccb ccb;
2749
2750                 cam_periph_lock(periph);
2751                 softc = (struct da_softc *)periph->softc;
2752
2753                 /*
2754                  * We only sync the cache if the drive is still open, and
2755                  * if the drive is capable of it..
2756                  */
2757                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2758                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2759                         cam_periph_unlock(periph);
2760                         continue;
2761                 }
2762
2763                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2764
2765                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2766                 scsi_synchronize_cache(&ccb.csio,
2767                                        /*retries*/0,
2768                                        /*cbfcnp*/dadone,
2769                                        MSG_SIMPLE_Q_TAG,
2770                                        /*begin_lba*/0, /* whole disk */
2771                                        /*lb_count*/0,
2772                                        SSD_FULL_SIZE,
2773                                        60 * 60 * 1000);
2774
2775                 xpt_polled_action(&ccb);
2776
2777                 error = cam_periph_error(&ccb,
2778                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
2779                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2780                         cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0,
2781                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
2782                 if (error != 0)
2783                         xpt_print(periph->path, "Synchronize cache failed\n");
2784                 cam_periph_unlock(periph);
2785         }
2786 }
2787
2788 #else /* !_KERNEL */
2789
2790 /*
2791  * XXX This is only left out of the kernel build to silence warnings.  If,
2792  * for some reason this function is used in the kernel, the ifdefs should
2793  * be moved so it is included both in the kernel and userland.
2794  */
2795 void
2796 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2797                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2798                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2799                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2800                  u_int32_t timeout)
2801 {
2802         struct scsi_format_unit *scsi_cmd;
2803
2804         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2805         scsi_cmd->opcode = FORMAT_UNIT;
2806         scsi_cmd->byte2 = byte2;
2807         scsi_ulto2b(ileave, scsi_cmd->interleave);
2808
2809         cam_fill_csio(csio,
2810                       retries,
2811                       cbfcnp,
2812                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2813                       tag_action,
2814                       data_ptr,
2815                       dxfer_len,
2816                       sense_len,
2817                       sizeof(*scsi_cmd),
2818                       timeout);
2819 }
2820
2821 #endif /* _KERNEL */