The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_da.c

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    1 /*-
    2  * Implementation of SCSI Direct Access Peripheral driver for CAM.
    3  *
    4  * Copyright (c) 1997 Justin T. Gibbs.
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions, and the following disclaimer,
   12  *    without modification, immediately at the beginning of the file.
   13  * 2. The name of the author may not be used to endorse or promote products
   14  *    derived from this software without specific prior written permission.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
   20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD$");
   31 
   32 #include <sys/param.h>
   33 
   34 #ifdef _KERNEL
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/bio.h>
   38 #include <sys/sysctl.h>
   39 #include <sys/taskqueue.h>
   40 #include <sys/lock.h>
   41 #include <sys/mutex.h>
   42 #include <sys/conf.h>
   43 #include <sys/devicestat.h>
   44 #include <sys/eventhandler.h>
   45 #include <sys/malloc.h>
   46 #include <sys/cons.h>
   47 #include <sys/endian.h>
   48 #include <sys/proc.h>
   49 #include <geom/geom.h>
   50 #include <geom/geom_disk.h>
   51 #endif /* _KERNEL */
   52 
   53 #ifndef _KERNEL
   54 #include <stdio.h>
   55 #include <string.h>
   56 #endif /* _KERNEL */
   57 
   58 #include <cam/cam.h>
   59 #include <cam/cam_ccb.h>
   60 #include <cam/cam_periph.h>
   61 #include <cam/cam_xpt_periph.h>
   62 #include <cam/cam_sim.h>
   63 
   64 #include <cam/scsi/scsi_message.h>
   65 
   66 #ifndef _KERNEL 
   67 #include <cam/scsi/scsi_da.h>
   68 #endif /* !_KERNEL */
   69 
   70 #ifdef _KERNEL
   71 typedef enum {
   72         DA_STATE_PROBE_RC,
   73         DA_STATE_PROBE_RC16,
   74         DA_STATE_PROBE_LBP,
   75         DA_STATE_PROBE_BLK_LIMITS,
   76         DA_STATE_PROBE_BDC,
   77         DA_STATE_PROBE_ATA,
   78         DA_STATE_NORMAL
   79 } da_state;
   80 
   81 typedef enum {
   82         DA_FLAG_PACK_INVALID    = 0x001,
   83         DA_FLAG_NEW_PACK        = 0x002,
   84         DA_FLAG_PACK_LOCKED     = 0x004,
   85         DA_FLAG_PACK_REMOVABLE  = 0x008,
   86         DA_FLAG_NEED_OTAG       = 0x020,
   87         DA_FLAG_WAS_OTAG        = 0x040,
   88         DA_FLAG_RETRY_UA        = 0x080,
   89         DA_FLAG_OPEN            = 0x100,
   90         DA_FLAG_SCTX_INIT       = 0x200,
   91         DA_FLAG_CAN_RC16        = 0x400,
   92         DA_FLAG_PROBED          = 0x800,
   93         DA_FLAG_DIRTY           = 0x1000,
   94         DA_FLAG_ANNOUNCED       = 0x2000
   95 } da_flags;
   96 
   97 typedef enum {
   98         DA_Q_NONE               = 0x00,
   99         DA_Q_NO_SYNC_CACHE      = 0x01,
  100         DA_Q_NO_6_BYTE          = 0x02,
  101         DA_Q_NO_PREVENT         = 0x04,
  102         DA_Q_4K                 = 0x08,
  103         DA_Q_NO_RC16            = 0x10,
  104         DA_Q_NO_UNMAP           = 0x20,
  105         DA_Q_RETRY_BUSY         = 0x40
  106 } da_quirks;
  107 
  108 #define DA_Q_BIT_STRING         \
  109         "\020"                  \
  110         "\001NO_SYNC_CACHE"     \
  111         "\002NO_6_BYTE"         \
  112         "\003NO_PREVENT"        \
  113         "\0044K"                \
  114         "\005NO_RC16"           \
  115         "\006NO_UNMAP"          \
  116         "\007RETRY_BUSY"
  117 
  118 typedef enum {
  119         DA_CCB_PROBE_RC         = 0x01,
  120         DA_CCB_PROBE_RC16       = 0x02,
  121         DA_CCB_PROBE_LBP        = 0x03,
  122         DA_CCB_PROBE_BLK_LIMITS = 0x04,
  123         DA_CCB_PROBE_BDC        = 0x05,
  124         DA_CCB_PROBE_ATA        = 0x06,
  125         DA_CCB_BUFFER_IO        = 0x07,
  126         DA_CCB_WAITING          = 0x08,
  127         DA_CCB_DUMP             = 0x0A,
  128         DA_CCB_DELETE           = 0x0B,
  129         DA_CCB_TUR              = 0x0C,
  130         DA_CCB_TYPE_MASK        = 0x0F,
  131         DA_CCB_RETRY_UA         = 0x10
  132 } da_ccb_state;
  133 
  134 /*
  135  * Order here is important for method choice
  136  *
  137  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
  138  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
  139  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
  140  * import taking 5mins.
  141  *
  142  */
  143 typedef enum {
  144         DA_DELETE_NONE,
  145         DA_DELETE_DISABLE,
  146         DA_DELETE_ATA_TRIM,
  147         DA_DELETE_UNMAP,
  148         DA_DELETE_WS16,
  149         DA_DELETE_WS10,
  150         DA_DELETE_ZERO,
  151         DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
  152         DA_DELETE_MAX = DA_DELETE_ZERO
  153 } da_delete_methods;
  154 
  155 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
  156                               struct bio *bp);
  157 static da_delete_func_t da_delete_trim;
  158 static da_delete_func_t da_delete_unmap;
  159 static da_delete_func_t da_delete_ws;
  160 
  161 static const void * da_delete_functions[] = {
  162         NULL,
  163         NULL,
  164         da_delete_trim,
  165         da_delete_unmap,
  166         da_delete_ws,
  167         da_delete_ws,
  168         da_delete_ws
  169 };
  170 
  171 static const char *da_delete_method_names[] =
  172     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
  173 static const char *da_delete_method_desc[] =
  174     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
  175       "WRITE SAME(10) with UNMAP", "ZERO" };
  176 
  177 /* Offsets into our private area for storing information */
  178 #define ccb_state       ppriv_field0
  179 #define ccb_bp          ppriv_ptr1
  180 
  181 struct disk_params {
  182         u_int8_t  heads;
  183         u_int32_t cylinders;
  184         u_int8_t  secs_per_track;
  185         u_int32_t secsize;      /* Number of bytes/sector */
  186         u_int64_t sectors;      /* total number sectors */
  187         u_int     stripesize;
  188         u_int     stripeoffset;
  189 };
  190 
  191 #define UNMAP_RANGE_MAX         0xffffffff
  192 #define UNMAP_HEAD_SIZE         8
  193 #define UNMAP_RANGE_SIZE        16
  194 #define UNMAP_MAX_RANGES        2048 /* Protocol Max is 4095 */
  195 #define UNMAP_BUF_SIZE          ((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
  196                                 UNMAP_HEAD_SIZE)
  197 
  198 #define WS10_MAX_BLKS           0xffff
  199 #define WS16_MAX_BLKS           0xffffffff
  200 #define ATA_TRIM_MAX_RANGES     ((UNMAP_BUF_SIZE / \
  201         (ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
  202 
  203 struct da_softc {
  204         struct   bio_queue_head bio_queue;
  205         struct   bio_queue_head delete_queue;
  206         struct   bio_queue_head delete_run_queue;
  207         LIST_HEAD(, ccb_hdr) pending_ccbs;
  208         int      tur;                   /* TEST UNIT READY should be sent */
  209         int      refcount;              /* Active xpt_action() calls */
  210         da_state state;
  211         da_flags flags; 
  212         da_quirks quirks;
  213         int      sort_io_queue;
  214         int      minimum_cmd_size;
  215         int      error_inject;
  216         int      trim_max_ranges;
  217         int      delete_running;
  218         int      delete_available;      /* Delete methods possibly available */
  219         u_int    maxio;
  220         uint32_t                unmap_max_ranges;
  221         uint32_t                unmap_max_lba; /* Max LBAs in UNMAP req */
  222         uint64_t                ws_max_blks;
  223         da_delete_methods       delete_method;
  224         da_delete_func_t        *delete_func;
  225         struct   disk_params params;
  226         struct   disk *disk;
  227         union    ccb saved_ccb;
  228         struct task             sysctl_task;
  229         struct sysctl_ctx_list  sysctl_ctx;
  230         struct sysctl_oid       *sysctl_tree;
  231         struct callout          sendordered_c;
  232         uint64_t wwpn;
  233         uint8_t  unmap_buf[UNMAP_BUF_SIZE];
  234         struct scsi_read_capacity_data_long rcaplong;
  235         struct callout          mediapoll_c;
  236 };
  237 
  238 #define dadeleteflag(softc, delete_method, enable)                      \
  239         if (enable) {                                                   \
  240                 softc->delete_available |= (1 << delete_method);        \
  241         } else {                                                        \
  242                 softc->delete_available &= ~(1 << delete_method);       \
  243         }
  244 
  245 struct da_quirk_entry {
  246         struct scsi_inquiry_pattern inq_pat;
  247         da_quirks quirks;
  248 };
  249 
  250 static const char quantum[] = "QUANTUM";
  251 static const char microp[] = "MICROP";
  252 
  253 static struct da_quirk_entry da_quirk_table[] =
  254 {
  255         /* SPI, FC devices */
  256         {
  257                 /*
  258                  * Fujitsu M2513A MO drives.
  259                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
  260                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
  261                  * Reported by: W.Scholten <whs@xs4all.nl>
  262                  */
  263                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
  264                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  265         },
  266         {
  267                 /* See above. */
  268                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
  269                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  270         },
  271         {
  272                 /*
  273                  * This particular Fujitsu drive doesn't like the
  274                  * synchronize cache command.
  275                  * Reported by: Tom Jackson <toj@gorilla.net>
  276                  */
  277                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
  278                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  279         },
  280         {
  281                 /*
  282                  * This drive doesn't like the synchronize cache command
  283                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
  284                  * in NetBSD PR kern/6027, August 24, 1998.
  285                  */
  286                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
  287                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  288         },
  289         {
  290                 /*
  291                  * This drive doesn't like the synchronize cache command
  292                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
  293                  * (PR 8882).
  294                  */
  295                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
  296                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  297         },
  298         {
  299                 /*
  300                  * Doesn't like the synchronize cache command.
  301                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
  302                  */
  303                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
  304                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  305         },
  306         {
  307                 /*
  308                  * Doesn't like the synchronize cache command.
  309                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
  310                  */
  311                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
  312                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  313         },
  314         {
  315                 /*
  316                  * Doesn't like the synchronize cache command.
  317                  */
  318                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
  319                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  320         },
  321         {
  322                 /*
  323                  * Doesn't like the synchronize cache command.
  324                  * Reported by: walter@pelissero.de
  325                  */
  326                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
  327                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  328         },
  329         {
  330                 /*
  331                  * Doesn't work correctly with 6 byte reads/writes.
  332                  * Returns illegal request, and points to byte 9 of the
  333                  * 6-byte CDB.
  334                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
  335                  */
  336                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
  337                 /*quirks*/ DA_Q_NO_6_BYTE
  338         },
  339         {
  340                 /* See above. */
  341                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
  342                 /*quirks*/ DA_Q_NO_6_BYTE
  343         },
  344         {
  345                 /*
  346                  * Doesn't like the synchronize cache command.
  347                  * Reported by: walter@pelissero.de
  348                  */
  349                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
  350                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  351         },
  352         {
  353                 /*
  354                  * The CISS RAID controllers do not support SYNC_CACHE
  355                  */
  356                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
  357                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  358         },
  359         {
  360                 /*
  361                  * The STEC SSDs sometimes hang on UNMAP.
  362                  */
  363                 {T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
  364                 /*quirks*/ DA_Q_NO_UNMAP
  365         },
  366         {
  367                 /*
  368                  * VMware returns BUSY status when storage has transient
  369                  * connectivity problems, so better wait.
  370                  */
  371                 {T_DIRECT, SIP_MEDIA_FIXED, "VMware", "Virtual disk", "*"},
  372                 /*quirks*/ DA_Q_RETRY_BUSY
  373         },
  374         /* USB mass storage devices supported by umass(4) */
  375         {
  376                 /*
  377                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
  378                  * PR: kern/51675
  379                  */
  380                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
  381                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  382         },
  383         {
  384                 /*
  385                  * Power Quotient Int. (PQI) USB flash key
  386                  * PR: kern/53067
  387                  */
  388                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
  389                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  390         },
  391         {
  392                 /*
  393                  * Creative Nomad MUVO mp3 player (USB)
  394                  * PR: kern/53094
  395                  */
  396                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
  397                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
  398         },
  399         {
  400                 /*
  401                  * Jungsoft NEXDISK USB flash key
  402                  * PR: kern/54737
  403                  */
  404                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
  405                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  406         },
  407         {
  408                 /*
  409                  * FreeDik USB Mini Data Drive
  410                  * PR: kern/54786
  411                  */
  412                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
  413                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  414         },
  415         {
  416                 /*
  417                  * Sigmatel USB Flash MP3 Player
  418                  * PR: kern/57046
  419                  */
  420                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
  421                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
  422         },
  423         {
  424                 /*
  425                  * Neuros USB Digital Audio Computer
  426                  * PR: kern/63645
  427                  */
  428                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
  429                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  430         },
  431         {
  432                 /*
  433                  * SEAGRAND NP-900 MP3 Player
  434                  * PR: kern/64563
  435                  */
  436                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
  437                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
  438         },
  439         {
  440                 /*
  441                  * iRiver iFP MP3 player (with UMS Firmware)
  442                  * PR: kern/54881, i386/63941, kern/66124
  443                  */
  444                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
  445                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  446         },
  447         {
  448                 /*
  449                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
  450                  * PR: kern/70158
  451                  */
  452                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
  453                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  454         },
  455         {
  456                 /*
  457                  * ZICPlay USB MP3 Player with FM
  458                  * PR: kern/75057
  459                  */
  460                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
  461                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  462         },
  463         {
  464                 /*
  465                  * TEAC USB floppy mechanisms
  466                  */
  467                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
  468                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  469         },
  470         {
  471                 /*
  472                  * Kingston DataTraveler II+ USB Pen-Drive.
  473                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
  474                  */
  475                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
  476                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  477         },
  478         {
  479                 /*
  480                  * USB DISK Pro PMAP
  481                  * Reported by: jhs
  482                  * PR: usb/96381
  483                  */
  484                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
  485                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  486         },
  487         {
  488                 /*
  489                  * Motorola E398 Mobile Phone (TransFlash memory card).
  490                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
  491                  * PR: usb/89889
  492                  */
  493                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
  494                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  495         },
  496         {
  497                 /*
  498                  * Qware BeatZkey! Pro
  499                  * PR: usb/79164
  500                  */
  501                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
  502                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  503         },
  504         {
  505                 /*
  506                  * Time DPA20B 1GB MP3 Player
  507                  * PR: usb/81846
  508                  */
  509                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
  510                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  511         },
  512         {
  513                 /*
  514                  * Samsung USB key 128Mb
  515                  * PR: usb/90081
  516                  */
  517                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
  518                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  519         },
  520         {
  521                 /*
  522                  * Kingston DataTraveler 2.0 USB Flash memory.
  523                  * PR: usb/89196
  524                  */
  525                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
  526                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  527         },
  528         {
  529                 /*
  530                  * Creative MUVO Slim mp3 player (USB)
  531                  * PR: usb/86131
  532                  */
  533                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
  534                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
  535                 },
  536         {
  537                 /*
  538                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
  539                  * PR: usb/80487
  540                  */
  541                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
  542                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  543         },
  544         {
  545                 /*
  546                  * SanDisk Micro Cruzer 128MB
  547                  * PR: usb/75970
  548                  */
  549                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
  550                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  551         },
  552         {
  553                 /*
  554                  * TOSHIBA TransMemory USB sticks
  555                  * PR: kern/94660
  556                  */
  557                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
  558                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  559         },
  560         {
  561                 /*
  562                  * PNY USB 3.0 Flash Drives
  563                 */
  564                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
  565                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
  566         },
  567         {
  568                 /*
  569                  * PNY USB Flash keys
  570                  * PR: usb/75578, usb/72344, usb/65436 
  571                  */
  572                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
  573                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  574         },
  575         {
  576                 /*
  577                  * Genesys 6-in-1 Card Reader
  578                  * PR: usb/94647
  579                  */
  580                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
  581                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  582         },
  583         {
  584                 /*
  585                  * Rekam Digital CAMERA
  586                  * PR: usb/98713
  587                  */
  588                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
  589                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  590         },
  591         {
  592                 /*
  593                  * iRiver H10 MP3 player
  594                  * PR: usb/102547
  595                  */
  596                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
  597                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  598         },
  599         {
  600                 /*
  601                  * iRiver U10 MP3 player
  602                  * PR: usb/92306
  603                  */
  604                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
  605                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  606         },
  607         {
  608                 /*
  609                  * X-Micro Flash Disk
  610                  * PR: usb/96901
  611                  */
  612                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
  613                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  614         },
  615         {
  616                 /*
  617                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
  618                  * PR: usb/96546
  619                  */
  620                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
  621                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  622         },
  623         {
  624                 /*
  625                  * Denver MP3 player
  626                  * PR: usb/107101
  627                  */
  628                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
  629                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  630         },
  631         {
  632                 /*
  633                  * Philips USB Key Audio KEY013
  634                  * PR: usb/68412
  635                  */
  636                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
  637                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
  638         },
  639         {
  640                 /*
  641                  * JNC MP3 Player
  642                  * PR: usb/94439
  643                  */
  644                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
  645                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  646         },
  647         {
  648                 /*
  649                  * SAMSUNG MP0402H
  650                  * PR: usb/108427
  651                  */
  652                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
  653                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  654         },
  655         {
  656                 /*
  657                  * I/O Magic USB flash - Giga Bank
  658                  * PR: usb/108810
  659                  */
  660                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
  661                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  662         },
  663         {
  664                 /*
  665                  * JoyFly 128mb USB Flash Drive
  666                  * PR: 96133
  667                  */
  668                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
  669                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  670         },
  671         {
  672                 /*
  673                  * ChipsBnk usb stick
  674                  * PR: 103702
  675                  */
  676                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
  677                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  678         },
  679         {
  680                 /*
  681                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
  682                  * PR: 129858
  683                  */
  684                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
  685                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  686         },
  687         {
  688                 /*
  689                  * Samsung YP-U3 mp3-player
  690                  * PR: 125398
  691                  */
  692                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
  693                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  694         },
  695         {
  696                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
  697                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  698         },
  699         {
  700                 /*
  701                  * Sony Cyber-Shot DSC cameras
  702                  * PR: usb/137035
  703                  */
  704                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
  705                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
  706         },
  707         {
  708                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
  709                  "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
  710         },
  711         {
  712                 /* At least several Transcent USB sticks lie on RC16. */
  713                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
  714                  "*"}, /*quirks*/ DA_Q_NO_RC16
  715         },
  716         /* ATA/SATA devices over SAS/USB/... */
  717         {
  718                 /* Hitachi Advanced Format (4k) drives */
  719                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
  720                 /*quirks*/DA_Q_4K
  721         },
  722         {
  723                 /* Samsung Advanced Format (4k) drives */
  724                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
  725                 /*quirks*/DA_Q_4K
  726         },
  727         {
  728                 /* Samsung Advanced Format (4k) drives */
  729                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
  730                 /*quirks*/DA_Q_4K
  731         },
  732         {
  733                 /* Samsung Advanced Format (4k) drives */
  734                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
  735                 /*quirks*/DA_Q_4K
  736         },
  737         {
  738                 /* Samsung Advanced Format (4k) drives */
  739                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
  740                 /*quirks*/DA_Q_4K
  741         },
  742         {
  743                 /* Seagate Barracuda Green Advanced Format (4k) drives */
  744                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
  745                 /*quirks*/DA_Q_4K
  746         },
  747         {
  748                 /* Seagate Barracuda Green Advanced Format (4k) drives */
  749                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
  750                 /*quirks*/DA_Q_4K
  751         },
  752         {
  753                 /* Seagate Barracuda Green Advanced Format (4k) drives */
  754                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
  755                 /*quirks*/DA_Q_4K
  756         },
  757         {
  758                 /* Seagate Barracuda Green Advanced Format (4k) drives */
  759                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
  760                 /*quirks*/DA_Q_4K
  761         },
  762         {
  763                 /* Seagate Barracuda Green Advanced Format (4k) drives */
  764                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
  765                 /*quirks*/DA_Q_4K
  766         },
  767         {
  768                 /* Seagate Barracuda Green Advanced Format (4k) drives */
  769                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
  770                 /*quirks*/DA_Q_4K
  771         },
  772         {
  773                 /* Seagate Momentus Advanced Format (4k) drives */
  774                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
  775                 /*quirks*/DA_Q_4K
  776         },
  777         {
  778                 /* Seagate Momentus Advanced Format (4k) drives */
  779                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
  780                 /*quirks*/DA_Q_4K
  781         },
  782         {
  783                 /* Seagate Momentus Advanced Format (4k) drives */
  784                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
  785                 /*quirks*/DA_Q_4K
  786         },
  787         {
  788                 /* Seagate Momentus Advanced Format (4k) drives */
  789                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
  790                 /*quirks*/DA_Q_4K
  791         },
  792         {
  793                 /* Seagate Momentus Advanced Format (4k) drives */
  794                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
  795                 /*quirks*/DA_Q_4K
  796         },
  797         {
  798                 /* Seagate Momentus Advanced Format (4k) drives */
  799                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
  800                 /*quirks*/DA_Q_4K
  801         },
  802         {
  803                 /* Seagate Momentus Advanced Format (4k) drives */
  804                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
  805                 /*quirks*/DA_Q_4K
  806         },
  807         {
  808                 /* Seagate Momentus Advanced Format (4k) drives */
  809                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
  810                 /*quirks*/DA_Q_4K
  811         },
  812         {
  813                 /* Seagate Momentus Advanced Format (4k) drives */
  814                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
  815                 /*quirks*/DA_Q_4K
  816         },
  817         {
  818                 /* Seagate Momentus Advanced Format (4k) drives */
  819                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
  820                 /*quirks*/DA_Q_4K
  821         },
  822         {
  823                 /* Seagate Momentus Advanced Format (4k) drives */
  824                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
  825                 /*quirks*/DA_Q_4K
  826         },
  827         {
  828                 /* Seagate Momentus Advanced Format (4k) drives */
  829                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
  830                 /*quirks*/DA_Q_4K
  831         },
  832         {
  833                 /* Seagate Momentus Advanced Format (4k) drives */
  834                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
  835                 /*quirks*/DA_Q_4K
  836         },
  837         {
  838                 /* Seagate Momentus Advanced Format (4k) drives */
  839                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
  840                 /*quirks*/DA_Q_4K
  841         },
  842         {
  843                 /* Seagate Momentus Thin Advanced Format (4k) drives */
  844                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
  845                 /*quirks*/DA_Q_4K
  846         },
  847         {
  848                 /* Seagate Momentus Thin Advanced Format (4k) drives */
  849                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
  850                 /*quirks*/DA_Q_4K
  851         },
  852         {
  853                 /* WDC Caviar Green Advanced Format (4k) drives */
  854                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
  855                 /*quirks*/DA_Q_4K
  856         },
  857         {
  858                 /* WDC Caviar Green Advanced Format (4k) drives */
  859                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
  860                 /*quirks*/DA_Q_4K
  861         },
  862         {
  863                 /* WDC Caviar Green Advanced Format (4k) drives */
  864                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
  865                 /*quirks*/DA_Q_4K
  866         },
  867         {
  868                 /* WDC Caviar Green Advanced Format (4k) drives */
  869                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
  870                 /*quirks*/DA_Q_4K
  871         },
  872         {
  873                 /* WDC Caviar Green Advanced Format (4k) drives */
  874                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
  875                 /*quirks*/DA_Q_4K
  876         },
  877         {
  878                 /* WDC Caviar Green Advanced Format (4k) drives */
  879                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
  880                 /*quirks*/DA_Q_4K
  881         },
  882         {
  883                 /* WDC Caviar Green Advanced Format (4k) drives */
  884                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
  885                 /*quirks*/DA_Q_4K
  886         },
  887         {
  888                 /* WDC Caviar Green Advanced Format (4k) drives */
  889                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
  890                 /*quirks*/DA_Q_4K
  891         },
  892         {
  893                 /* WDC Scorpio Black Advanced Format (4k) drives */
  894                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
  895                 /*quirks*/DA_Q_4K
  896         },
  897         {
  898                 /* WDC Scorpio Black Advanced Format (4k) drives */
  899                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
  900                 /*quirks*/DA_Q_4K
  901         },
  902         {
  903                 /* WDC Scorpio Black Advanced Format (4k) drives */
  904                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
  905                 /*quirks*/DA_Q_4K
  906         },
  907         {
  908                 /* WDC Scorpio Black Advanced Format (4k) drives */
  909                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
  910                 /*quirks*/DA_Q_4K
  911         },
  912         {
  913                 /* WDC Scorpio Blue Advanced Format (4k) drives */
  914                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
  915                 /*quirks*/DA_Q_4K
  916         },
  917         {
  918                 /* WDC Scorpio Blue Advanced Format (4k) drives */
  919                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
  920                 /*quirks*/DA_Q_4K
  921         },
  922         {
  923                 /* WDC Scorpio Blue Advanced Format (4k) drives */
  924                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
  925                 /*quirks*/DA_Q_4K
  926         },
  927         {
  928                 /* WDC Scorpio Blue Advanced Format (4k) drives */
  929                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
  930                 /*quirks*/DA_Q_4K
  931         },
  932         {
  933                 /*
  934                  * Olympus FE-210 camera
  935                  */
  936                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
  937                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  938         },
  939         {
  940                 /*
  941                  * LG UP3S MP3 player
  942                  */
  943                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
  944                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  945         },
  946         {
  947                 /*
  948                  * Laser MP3-2GA13 MP3 player
  949                  */
  950                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
  951                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
  952         },
  953         {
  954                 /*
  955                  * LaCie external 250GB Hard drive des by Porsche
  956                  * Submitted by: Ben Stuyts <ben@altesco.nl>
  957                  * PR: 121474
  958                  */
  959                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
  960                 /*quirks*/ DA_Q_NO_SYNC_CACHE
  961         },
  962         /* SATA SSDs */
  963         {
  964                 /*
  965                  * Corsair Force 2 SSDs
  966                  * 4k optimised & trim only works in 4k requests + 4k aligned
  967                  */
  968                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
  969                 /*quirks*/DA_Q_4K
  970         },
  971         {
  972                 /*
  973                  * Corsair Force 3 SSDs
  974                  * 4k optimised & trim only works in 4k requests + 4k aligned
  975                  */
  976                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
  977                 /*quirks*/DA_Q_4K
  978         },
  979         {
  980                 /*
  981                  * Corsair Neutron GTX SSDs
  982                  * 4k optimised & trim only works in 4k requests + 4k aligned
  983                  */
  984                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
  985                 /*quirks*/DA_Q_4K
  986         },
  987         {
  988                 /*
  989                  * Corsair Force GT SSDs
  990                  * 4k optimised & trim only works in 4k requests + 4k aligned
  991                  */
  992                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force GT*", "*" },
  993                 /*quirks*/DA_Q_4K
  994         },
  995         {
  996                 /*
  997                  * Crucial M4 SSDs
  998                  * 4k optimised & trim only works in 4k requests + 4k aligned
  999                  */
 1000                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
 1001                 /*quirks*/DA_Q_4K
 1002         },
 1003         {
 1004                 /*
 1005                  * Crucial RealSSD C300 SSDs
 1006                  * 4k optimised
 1007                  */
 1008                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
 1009                 "*" }, /*quirks*/DA_Q_4K
 1010         },
 1011         {
 1012                 /*
 1013                  * Intel 320 Series SSDs
 1014                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1015                  */
 1016                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
 1017                 /*quirks*/DA_Q_4K
 1018         },
 1019         {
 1020                 /*
 1021                  * Intel 330 Series SSDs
 1022                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1023                  */
 1024                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
 1025                 /*quirks*/DA_Q_4K
 1026         },
 1027         {
 1028                 /*
 1029                  * Intel 510 Series SSDs
 1030                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1031                  */
 1032                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
 1033                 /*quirks*/DA_Q_4K
 1034         },
 1035         {
 1036                 /*
 1037                  * Intel 520 Series SSDs
 1038                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1039                  */
 1040                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
 1041                 /*quirks*/DA_Q_4K
 1042         },
 1043         {
 1044                 /*
 1045                  * Intel X25-M Series SSDs
 1046                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1047                  */
 1048                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
 1049                 /*quirks*/DA_Q_4K
 1050         },
 1051         {
 1052                 /*
 1053                  * Kingston E100 Series SSDs
 1054                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1055                  */
 1056                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
 1057                 /*quirks*/DA_Q_4K
 1058         },
 1059         {
 1060                 /*
 1061                  * Kingston HyperX 3k SSDs
 1062                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1063                  */
 1064                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
 1065                 /*quirks*/DA_Q_4K
 1066         },
 1067         {
 1068                 /*
 1069                  * Marvell SSDs (entry taken from OpenSolaris)
 1070                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1071                  */
 1072                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
 1073                 /*quirks*/DA_Q_4K
 1074         },
 1075         {
 1076                 /*
 1077                  * OCZ Agility 2 SSDs
 1078                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1079                  */
 1080                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
 1081                 /*quirks*/DA_Q_4K
 1082         },
 1083         {
 1084                 /*
 1085                  * OCZ Agility 3 SSDs
 1086                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1087                  */
 1088                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
 1089                 /*quirks*/DA_Q_4K
 1090         },
 1091         {
 1092                 /*
 1093                  * OCZ Deneva R Series SSDs
 1094                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1095                  */
 1096                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
 1097                 /*quirks*/DA_Q_4K
 1098         },
 1099         {
 1100                 /*
 1101                  * OCZ Vertex 2 SSDs (inc pro series)
 1102                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1103                  */
 1104                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
 1105                 /*quirks*/DA_Q_4K
 1106         },
 1107         {
 1108                 /*
 1109                  * OCZ Vertex 3 SSDs
 1110                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1111                  */
 1112                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
 1113                 /*quirks*/DA_Q_4K
 1114         },
 1115         {
 1116                 /*
 1117                  * OCZ Vertex 4 SSDs
 1118                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1119                  */
 1120                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
 1121                 /*quirks*/DA_Q_4K
 1122         },
 1123         {
 1124                 /*
 1125                  * Samsung 830 Series SSDs
 1126                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1127                  */
 1128                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
 1129                 /*quirks*/DA_Q_4K
 1130         },
 1131         {
 1132                 /*
 1133                  * SuperTalent TeraDrive CT SSDs
 1134                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1135                  */
 1136                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
 1137                 /*quirks*/DA_Q_4K
 1138         },
 1139         {
 1140                 /*
 1141                  * XceedIOPS SATA SSDs
 1142                  * 4k optimised
 1143                  */
 1144                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
 1145                 /*quirks*/DA_Q_4K
 1146         },
 1147         {
 1148                 /*
 1149                  * Hama Innostor USB-Stick 
 1150                  */
 1151                 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" }, 
 1152                 /*quirks*/DA_Q_NO_RC16
 1153         },
 1154 };
 1155 
 1156 static  disk_strategy_t dastrategy;
 1157 static  dumper_t        dadump;
 1158 static  periph_init_t   dainit;
 1159 static  void            daasync(void *callback_arg, u_int32_t code,
 1160                                 struct cam_path *path, void *arg);
 1161 static  void            dasysctlinit(void *context, int pending);
 1162 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 1163 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
 1164 static  int             dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
 1165 static  void            dadeletemethodset(struct da_softc *softc,
 1166                                           da_delete_methods delete_method);
 1167 static  off_t           dadeletemaxsize(struct da_softc *softc,
 1168                                         da_delete_methods delete_method);
 1169 static  void            dadeletemethodchoose(struct da_softc *softc,
 1170                                              da_delete_methods default_method);
 1171 static  void            daprobedone(struct cam_periph *periph, union ccb *ccb);
 1172 
 1173 static  periph_ctor_t   daregister;
 1174 static  periph_dtor_t   dacleanup;
 1175 static  periph_start_t  dastart;
 1176 static  periph_oninv_t  daoninvalidate;
 1177 static  void            dadone(struct cam_periph *periph,
 1178                                union ccb *done_ccb);
 1179 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 1180                                 u_int32_t sense_flags);
 1181 static void             daprevent(struct cam_periph *periph, int action);
 1182 static void             dareprobe(struct cam_periph *periph);
 1183 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 1184                                   uint64_t maxsector,
 1185                                   struct scsi_read_capacity_data_long *rcaplong,
 1186                                   size_t rcap_size);
 1187 static timeout_t        dasendorderedtag;
 1188 static void             dashutdown(void *arg, int howto);
 1189 static timeout_t        damediapoll;
 1190 
 1191 #ifndef DA_DEFAULT_POLL_PERIOD
 1192 #define DA_DEFAULT_POLL_PERIOD  3
 1193 #endif
 1194 
 1195 #ifndef DA_DEFAULT_TIMEOUT
 1196 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 1197 #endif
 1198 
 1199 #ifndef DA_DEFAULT_RETRY
 1200 #define DA_DEFAULT_RETRY        4
 1201 #endif
 1202 
 1203 #ifndef DA_DEFAULT_SEND_ORDERED
 1204 #define DA_DEFAULT_SEND_ORDERED 1
 1205 #endif
 1206 
 1207 #define DA_SIO (softc->sort_io_queue >= 0 ? \
 1208     softc->sort_io_queue : cam_sort_io_queues)
 1209 
 1210 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
 1211 static int da_retry_count = DA_DEFAULT_RETRY;
 1212 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 1213 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 1214 
 1215 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 1216             "CAM Direct Access Disk driver");
 1217 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
 1218            &da_poll_period, 0, "Media polling period in seconds");
 1219 TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
 1220 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 1221            &da_retry_count, 0, "Normal I/O retry count");
 1222 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 1223 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 1224            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 1225 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 1226 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
 1227            &da_send_ordered, 0, "Send Ordered Tags");
 1228 TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
 1229 
 1230 /*
 1231  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 1232  * to the default timeout, we check to see whether an ordered
 1233  * tagged transaction is appropriate to prevent simple tag
 1234  * starvation.  Since we'd like to ensure that there is at least
 1235  * 1/2 of the timeout length left for a starved transaction to
 1236  * complete after we've sent an ordered tag, we must poll at least
 1237  * four times in every timeout period.  This takes care of the worst
 1238  * case where a starved transaction starts during an interval that
 1239  * meets the requirement "don't send an ordered tag" test so it takes
 1240  * us two intervals to determine that a tag must be sent.
 1241  */
 1242 #ifndef DA_ORDEREDTAG_INTERVAL
 1243 #define DA_ORDEREDTAG_INTERVAL 4
 1244 #endif
 1245 
 1246 static struct periph_driver dadriver =
 1247 {
 1248         dainit, "da",
 1249         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 1250 };
 1251 
 1252 PERIPHDRIVER_DECLARE(da, dadriver);
 1253 
 1254 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 1255 
 1256 static int
 1257 daopen(struct disk *dp)
 1258 {
 1259         struct cam_periph *periph;
 1260         struct da_softc *softc;
 1261         int error;
 1262 
 1263         periph = (struct cam_periph *)dp->d_drv1;
 1264         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 1265                 return (ENXIO);
 1266         }
 1267 
 1268         cam_periph_lock(periph);
 1269         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 1270                 cam_periph_unlock(periph);
 1271                 cam_periph_release(periph);
 1272                 return (error);
 1273         }
 1274 
 1275         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 1276             ("daopen\n"));
 1277 
 1278         softc = (struct da_softc *)periph->softc;
 1279         dareprobe(periph);
 1280 
 1281         /* Wait for the disk size update.  */
 1282         error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
 1283             "dareprobe", 0);
 1284         if (error != 0)
 1285                 xpt_print(periph->path, "unable to retrieve capacity data\n");
 1286 
 1287         if (periph->flags & CAM_PERIPH_INVALID)
 1288                 error = ENXIO;
 1289 
 1290         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 1291             (softc->quirks & DA_Q_NO_PREVENT) == 0)
 1292                 daprevent(periph, PR_PREVENT);
 1293 
 1294         if (error == 0) {
 1295                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 1296                 softc->flags |= DA_FLAG_OPEN;
 1297         }
 1298 
 1299         cam_periph_unhold(periph);
 1300         cam_periph_unlock(periph);
 1301 
 1302         if (error != 0)
 1303                 cam_periph_release(periph);
 1304 
 1305         return (error);
 1306 }
 1307 
 1308 static int
 1309 daclose(struct disk *dp)
 1310 {
 1311         struct  cam_periph *periph;
 1312         struct  da_softc *softc;
 1313         int error;
 1314 
 1315         periph = (struct cam_periph *)dp->d_drv1;
 1316         cam_periph_lock(periph);
 1317         if (cam_periph_hold(periph, PRIBIO) != 0) {
 1318                 cam_periph_unlock(periph);
 1319                 cam_periph_release(periph);
 1320                 return (0);
 1321         }
 1322 
 1323         softc = (struct da_softc *)periph->softc;
 1324 
 1325         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 1326             ("daclose\n"));
 1327 
 1328         if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
 1329             (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
 1330             (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
 1331                 union   ccb *ccb;
 1332 
 1333                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 1334 
 1335                 scsi_synchronize_cache(&ccb->csio,
 1336                                        /*retries*/1,
 1337                                        /*cbfcnp*/dadone,
 1338                                        MSG_SIMPLE_Q_TAG,
 1339                                        /*begin_lba*/0,/* Cover the whole disk */
 1340                                        /*lb_count*/0,
 1341                                        SSD_FULL_SIZE,
 1342                                        5 * 60 * 1000);
 1343 
 1344                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
 1345                                   /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
 1346                                   softc->disk->d_devstat);
 1347                 if (error == 0)
 1348                         softc->flags &= ~DA_FLAG_DIRTY;
 1349                 xpt_release_ccb(ccb);
 1350 
 1351         }
 1352 
 1353         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
 1354                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
 1355                         daprevent(periph, PR_ALLOW);
 1356                 /*
 1357                  * If we've got removeable media, mark the blocksize as
 1358                  * unavailable, since it could change when new media is
 1359                  * inserted.
 1360                  */
 1361                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
 1362         }
 1363 
 1364         softc->flags &= ~DA_FLAG_OPEN;
 1365         cam_periph_unhold(periph);
 1366         cam_periph_unlock(periph);
 1367         cam_periph_release(periph);
 1368         return (0);     
 1369 }
 1370 
 1371 static void
 1372 daschedule(struct cam_periph *periph)
 1373 {
 1374         struct da_softc *softc = (struct da_softc *)periph->softc;
 1375         uint32_t prio;
 1376 
 1377         if (softc->state != DA_STATE_NORMAL)
 1378                 return;
 1379 
 1380         /* Check if cam_periph_getccb() was called. */
 1381         prio = periph->immediate_priority;
 1382 
 1383         /* Check if we have more work to do. */
 1384         if (bioq_first(&softc->bio_queue) ||
 1385             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
 1386             softc->tur) {
 1387                 prio = CAM_PRIORITY_NORMAL;
 1388         }
 1389 
 1390         /* Schedule CCB if any of above is true. */
 1391         if (prio != CAM_PRIORITY_NONE)
 1392                 xpt_schedule(periph, prio);
 1393 }
 1394 
 1395 /*
 1396  * Actually translate the requested transfer into one the physical driver
 1397  * can understand.  The transfer is described by a buf and will include
 1398  * only one physical transfer.
 1399  */
 1400 static void
 1401 dastrategy(struct bio *bp)
 1402 {
 1403         struct cam_periph *periph;
 1404         struct da_softc *softc;
 1405         
 1406         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 1407         softc = (struct da_softc *)periph->softc;
 1408 
 1409         cam_periph_lock(periph);
 1410 
 1411         /*
 1412          * If the device has been made invalid, error out
 1413          */
 1414         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
 1415                 cam_periph_unlock(periph);
 1416                 biofinish(bp, NULL, ENXIO);
 1417                 return;
 1418         }
 1419 
 1420         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
 1421 
 1422         /*
 1423          * Place it in the queue of disk activities for this disk
 1424          */
 1425         if (bp->bio_cmd == BIO_DELETE) {
 1426                 if (bp->bio_bcount == 0)
 1427                         biodone(bp);
 1428                 else if (DA_SIO)
 1429                         bioq_disksort(&softc->delete_queue, bp);
 1430                 else
 1431                         bioq_insert_tail(&softc->delete_queue, bp);
 1432         } else if (DA_SIO) {
 1433                 bioq_disksort(&softc->bio_queue, bp);
 1434         } else {
 1435                 bioq_insert_tail(&softc->bio_queue, bp);
 1436         }
 1437 
 1438         /*
 1439          * Schedule ourselves for performing the work.
 1440          */
 1441         daschedule(periph);
 1442         cam_periph_unlock(periph);
 1443 
 1444         return;
 1445 }
 1446 
 1447 static int
 1448 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
 1449 {
 1450         struct      cam_periph *periph;
 1451         struct      da_softc *softc;
 1452         u_int       secsize;
 1453         struct      ccb_scsiio csio;
 1454         struct      disk *dp;
 1455         int         error = 0;
 1456 
 1457         dp = arg;
 1458         periph = dp->d_drv1;
 1459         softc = (struct da_softc *)periph->softc;
 1460         cam_periph_lock(periph);
 1461         secsize = softc->params.secsize;
 1462         
 1463         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 1464                 cam_periph_unlock(periph);
 1465                 return (ENXIO);
 1466         }
 1467 
 1468         if (length > 0) {
 1469                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 1470                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
 1471                 scsi_read_write(&csio,
 1472                                 /*retries*/0,
 1473                                 dadone,
 1474                                 MSG_ORDERED_Q_TAG,
 1475                                 /*read*/SCSI_RW_WRITE,
 1476                                 /*byte2*/0,
 1477                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
 1478                                 offset / secsize,
 1479                                 length / secsize,
 1480                                 /*data_ptr*/(u_int8_t *) virtual,
 1481                                 /*dxfer_len*/length,
 1482                                 /*sense_len*/SSD_FULL_SIZE,
 1483                                 da_default_timeout * 1000);
 1484                 xpt_polled_action((union ccb *)&csio);
 1485 
 1486                 error = cam_periph_error((union ccb *)&csio,
 1487                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
 1488                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
 1489                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
 1490                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
 1491                 if (error != 0)
 1492                         printf("Aborting dump due to I/O error.\n");
 1493                 cam_periph_unlock(periph);
 1494                 return (error);
 1495         }
 1496                 
 1497         /*
 1498          * Sync the disk cache contents to the physical media.
 1499          */
 1500         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
 1501 
 1502                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 1503                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
 1504                 scsi_synchronize_cache(&csio,
 1505                                        /*retries*/0,
 1506                                        /*cbfcnp*/dadone,
 1507                                        MSG_SIMPLE_Q_TAG,
 1508                                        /*begin_lba*/0,/* Cover the whole disk */
 1509                                        /*lb_count*/0,
 1510                                        SSD_FULL_SIZE,
 1511                                        5 * 60 * 1000);
 1512                 xpt_polled_action((union ccb *)&csio);
 1513 
 1514                 error = cam_periph_error((union ccb *)&csio,
 1515                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
 1516                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
 1517                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
 1518                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
 1519                 if (error != 0)
 1520                         xpt_print(periph->path, "Synchronize cache failed\n");
 1521         }
 1522         cam_periph_unlock(periph);
 1523         return (error);
 1524 }
 1525 
 1526 static int
 1527 dagetattr(struct bio *bp)
 1528 {
 1529         int ret;
 1530         struct cam_periph *periph;
 1531 
 1532         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 1533         cam_periph_lock(periph);
 1534         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
 1535             periph->path);
 1536         cam_periph_unlock(periph);
 1537         if (ret == 0)
 1538                 bp->bio_completed = bp->bio_length;
 1539         return ret;
 1540 }
 1541 
 1542 static void
 1543 dainit(void)
 1544 {
 1545         cam_status status;
 1546 
 1547         /*
 1548          * Install a global async callback.  This callback will
 1549          * receive async callbacks like "new device found".
 1550          */
 1551         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
 1552 
 1553         if (status != CAM_REQ_CMP) {
 1554                 printf("da: Failed to attach master async callback "
 1555                        "due to status 0x%x!\n", status);
 1556         } else if (da_send_ordered) {
 1557 
 1558                 /* Register our shutdown event handler */
 1559                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 
 1560                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
 1561                     printf("dainit: shutdown event registration failed!\n");
 1562         }
 1563 }
 1564 
 1565 /*
 1566  * Callback from GEOM, called when it has finished cleaning up its
 1567  * resources.
 1568  */
 1569 static void
 1570 dadiskgonecb(struct disk *dp)
 1571 {
 1572         struct cam_periph *periph;
 1573 
 1574         periph = (struct cam_periph *)dp->d_drv1;
 1575         cam_periph_release(periph);
 1576 }
 1577 
 1578 static void
 1579 daoninvalidate(struct cam_periph *periph)
 1580 {
 1581         struct da_softc *softc;
 1582 
 1583         softc = (struct da_softc *)periph->softc;
 1584 
 1585         /*
 1586          * De-register any async callbacks.
 1587          */
 1588         xpt_register_async(0, daasync, periph, periph->path);
 1589 
 1590         softc->flags |= DA_FLAG_PACK_INVALID;
 1591 
 1592         /*
 1593          * Return all queued I/O with ENXIO.
 1594          * XXX Handle any transactions queued to the card
 1595          *     with XPT_ABORT_CCB.
 1596          */
 1597         bioq_flush(&softc->bio_queue, NULL, ENXIO);
 1598         bioq_flush(&softc->delete_queue, NULL, ENXIO);
 1599 
 1600         /*
 1601          * Tell GEOM that we've gone away, we'll get a callback when it is
 1602          * done cleaning up its resources.
 1603          */
 1604         disk_gone(softc->disk);
 1605 }
 1606 
 1607 static void
 1608 dacleanup(struct cam_periph *periph)
 1609 {
 1610         struct da_softc *softc;
 1611 
 1612         softc = (struct da_softc *)periph->softc;
 1613 
 1614         cam_periph_unlock(periph);
 1615 
 1616         /*
 1617          * If we can't free the sysctl tree, oh well...
 1618          */
 1619         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
 1620             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
 1621                 xpt_print(periph->path, "can't remove sysctl context\n");
 1622         }
 1623 
 1624         callout_drain(&softc->mediapoll_c);
 1625         disk_destroy(softc->disk);
 1626         callout_drain(&softc->sendordered_c);
 1627         free(softc, M_DEVBUF);
 1628         cam_periph_lock(periph);
 1629 }
 1630 
 1631 static void
 1632 daasync(void *callback_arg, u_int32_t code,
 1633         struct cam_path *path, void *arg)
 1634 {
 1635         struct cam_periph *periph;
 1636         struct da_softc *softc;
 1637 
 1638         periph = (struct cam_periph *)callback_arg;
 1639         switch (code) {
 1640         case AC_FOUND_DEVICE:
 1641         {
 1642                 struct ccb_getdev *cgd;
 1643                 cam_status status;
 1644  
 1645                 cgd = (struct ccb_getdev *)arg;
 1646                 if (cgd == NULL)
 1647                         break;
 1648 
 1649                 if (cgd->protocol != PROTO_SCSI)
 1650                         break;
 1651 
 1652                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
 1653                     && SID_TYPE(&cgd->inq_data) != T_RBC
 1654                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
 1655                         break;
 1656 
 1657                 /*
 1658                  * Allocate a peripheral instance for
 1659                  * this device and start the probe
 1660                  * process.
 1661                  */
 1662                 status = cam_periph_alloc(daregister, daoninvalidate,
 1663                                           dacleanup, dastart,
 1664                                           "da", CAM_PERIPH_BIO,
 1665                                           cgd->ccb_h.path, daasync,
 1666                                           AC_FOUND_DEVICE, cgd);
 1667 
 1668                 if (status != CAM_REQ_CMP
 1669                  && status != CAM_REQ_INPROG)
 1670                         printf("daasync: Unable to attach to new device "
 1671                                 "due to status 0x%x\n", status);
 1672                 return;
 1673         }
 1674         case AC_ADVINFO_CHANGED:
 1675         {
 1676                 uintptr_t buftype;
 1677 
 1678                 buftype = (uintptr_t)arg;
 1679                 if (buftype == CDAI_TYPE_PHYS_PATH) {
 1680                         struct da_softc *softc;
 1681 
 1682                         softc = periph->softc;
 1683                         disk_attr_changed(softc->disk, "GEOM::physpath",
 1684                                           M_NOWAIT);
 1685                 }
 1686                 break;
 1687         }
 1688         case AC_UNIT_ATTENTION:
 1689         {
 1690                 union ccb *ccb;
 1691                 int error_code, sense_key, asc, ascq;
 1692 
 1693                 softc = (struct da_softc *)periph->softc;
 1694                 ccb = (union ccb *)arg;
 1695 
 1696                 /*
 1697                  * Handle all UNIT ATTENTIONs except our own,
 1698                  * as they will be handled by daerror().
 1699                  */
 1700                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
 1701                     scsi_extract_sense_ccb(ccb,
 1702                      &error_code, &sense_key, &asc, &ascq)) {
 1703                         if (asc == 0x2A && ascq == 0x09) {
 1704                                 xpt_print(ccb->ccb_h.path,
 1705                                     "Capacity data has changed\n");
 1706                                 softc->flags &= ~DA_FLAG_PROBED;
 1707                                 dareprobe(periph);
 1708                         } else if (asc == 0x28 && ascq == 0x00) {
 1709                                 softc->flags &= ~DA_FLAG_PROBED;
 1710                                 disk_media_changed(softc->disk, M_NOWAIT);
 1711                         } else if (asc == 0x3F && ascq == 0x03) {
 1712                                 xpt_print(ccb->ccb_h.path,
 1713                                     "INQUIRY data has changed\n");
 1714                                 softc->flags &= ~DA_FLAG_PROBED;
 1715                                 dareprobe(periph);
 1716                         }
 1717                 }
 1718                 cam_periph_async(periph, code, path, arg);
 1719                 break;
 1720         }
 1721         case AC_SCSI_AEN:
 1722                 softc = (struct da_softc *)periph->softc;
 1723                 if (!softc->tur) {
 1724                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
 1725                                 softc->tur = 1;
 1726                                 daschedule(periph);
 1727                         }
 1728                 }
 1729                 /* FALLTHROUGH */
 1730         case AC_SENT_BDR:
 1731         case AC_BUS_RESET:
 1732         {
 1733                 struct ccb_hdr *ccbh;
 1734 
 1735                 softc = (struct da_softc *)periph->softc;
 1736                 /*
 1737                  * Don't fail on the expected unit attention
 1738                  * that will occur.
 1739                  */
 1740                 softc->flags |= DA_FLAG_RETRY_UA;
 1741                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
 1742                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
 1743                 break;
 1744         }
 1745         default:
 1746                 break;
 1747         }
 1748         cam_periph_async(periph, code, path, arg);
 1749 }
 1750 
 1751 static void
 1752 dasysctlinit(void *context, int pending)
 1753 {
 1754         struct cam_periph *periph;
 1755         struct da_softc *softc;
 1756         char tmpstr[80], tmpstr2[80];
 1757         struct ccb_trans_settings cts;
 1758 
 1759         periph = (struct cam_periph *)context;
 1760         /*
 1761          * periph was held for us when this task was enqueued
 1762          */
 1763         if (periph->flags & CAM_PERIPH_INVALID) {
 1764                 cam_periph_release(periph);
 1765                 return;
 1766         }
 1767 
 1768         softc = (struct da_softc *)periph->softc;
 1769         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
 1770         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
 1771 
 1772         sysctl_ctx_init(&softc->sysctl_ctx);
 1773         softc->flags |= DA_FLAG_SCTX_INIT;
 1774         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
 1775                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
 1776                 CTLFLAG_RD, 0, tmpstr);
 1777         if (softc->sysctl_tree == NULL) {
 1778                 printf("dasysctlinit: unable to allocate sysctl tree\n");
 1779                 cam_periph_release(periph);
 1780                 return;
 1781         }
 1782 
 1783         /*
 1784          * Now register the sysctl handler, so the user can change the value on
 1785          * the fly.
 1786          */
 1787         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1788                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
 1789                 softc, 0, dadeletemethodsysctl, "A",
 1790                 "BIO_DELETE execution method");
 1791         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1792                 OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
 1793                 softc, 0, dadeletemaxsysctl, "Q",
 1794                 "Maximum BIO_DELETE size");
 1795         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1796                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
 1797                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
 1798                 "Minimum CDB size");
 1799         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1800                 OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
 1801                 "Sort IO queue to try and optimise disk access patterns");
 1802 
 1803         SYSCTL_ADD_INT(&softc->sysctl_ctx,
 1804                        SYSCTL_CHILDREN(softc->sysctl_tree),
 1805                        OID_AUTO,
 1806                        "error_inject",
 1807                        CTLFLAG_RW,
 1808                        &softc->error_inject,
 1809                        0,
 1810                        "error_inject leaf");
 1811 
 1812 
 1813         /*
 1814          * Add some addressing info.
 1815          */
 1816         memset(&cts, 0, sizeof (cts));
 1817         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
 1818         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
 1819         cts.type = CTS_TYPE_CURRENT_SETTINGS;
 1820         cam_periph_lock(periph);
 1821         xpt_action((union ccb *)&cts);
 1822         cam_periph_unlock(periph);
 1823         if (cts.ccb_h.status != CAM_REQ_CMP) {
 1824                 cam_periph_release(periph);
 1825                 return;
 1826         }
 1827         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
 1828                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
 1829                 if (fc->valid & CTS_FC_VALID_WWPN) {
 1830                         softc->wwpn = fc->wwpn;
 1831                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
 1832                             SYSCTL_CHILDREN(softc->sysctl_tree),
 1833                             OID_AUTO, "wwpn", CTLFLAG_RD,
 1834                             &softc->wwpn, "World Wide Port Name");
 1835                 }
 1836         }
 1837         cam_periph_release(periph);
 1838 }
 1839 
 1840 static int
 1841 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
 1842 {
 1843         int error;
 1844         uint64_t value;
 1845         struct da_softc *softc;
 1846 
 1847         softc = (struct da_softc *)arg1;
 1848 
 1849         value = softc->disk->d_delmaxsize;
 1850         error = sysctl_handle_64(oidp, &value, 0, req);
 1851         if ((error != 0) || (req->newptr == NULL))
 1852                 return (error);
 1853 
 1854         /* only accept values smaller than the calculated value */
 1855         if (value > dadeletemaxsize(softc, softc->delete_method)) {
 1856                 return (EINVAL);
 1857         }
 1858         softc->disk->d_delmaxsize = value;
 1859 
 1860         return (0);
 1861 }
 1862 
 1863 static int
 1864 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
 1865 {
 1866         int error, value;
 1867 
 1868         value = *(int *)arg1;
 1869 
 1870         error = sysctl_handle_int(oidp, &value, 0, req);
 1871 
 1872         if ((error != 0)
 1873          || (req->newptr == NULL))
 1874                 return (error);
 1875 
 1876         /*
 1877          * Acceptable values here are 6, 10, 12 or 16.
 1878          */
 1879         if (value < 6)
 1880                 value = 6;
 1881         else if ((value > 6)
 1882               && (value <= 10))
 1883                 value = 10;
 1884         else if ((value > 10)
 1885               && (value <= 12))
 1886                 value = 12;
 1887         else if (value > 12)
 1888                 value = 16;
 1889 
 1890         *(int *)arg1 = value;
 1891 
 1892         return (0);
 1893 }
 1894 
 1895 static void
 1896 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
 1897 {
 1898 
 1899 
 1900         softc->delete_method = delete_method;
 1901         softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
 1902         softc->delete_func = da_delete_functions[delete_method];
 1903 
 1904         if (softc->delete_method > DA_DELETE_DISABLE)
 1905                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
 1906         else
 1907                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
 1908 }
 1909 
 1910 static off_t
 1911 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
 1912 {
 1913         off_t sectors;
 1914 
 1915         switch(delete_method) {
 1916         case DA_DELETE_UNMAP:
 1917                 sectors = (off_t)softc->unmap_max_lba;
 1918                 break;
 1919         case DA_DELETE_ATA_TRIM:
 1920                 sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
 1921                 break;
 1922         case DA_DELETE_WS16:
 1923                 sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
 1924                 break;
 1925         case DA_DELETE_ZERO:
 1926         case DA_DELETE_WS10:
 1927                 sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
 1928                 break;
 1929         default:
 1930                 return 0;
 1931         }
 1932 
 1933         return (off_t)softc->params.secsize *
 1934             omin(sectors, softc->params.sectors);
 1935 }
 1936 
 1937 static void
 1938 daprobedone(struct cam_periph *periph, union ccb *ccb)
 1939 {
 1940         struct da_softc *softc;
 1941 
 1942         softc = (struct da_softc *)periph->softc;
 1943 
 1944         dadeletemethodchoose(softc, DA_DELETE_NONE);
 1945 
 1946         if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
 1947                 char buf[80];
 1948                 int i, sep;
 1949 
 1950                 snprintf(buf, sizeof(buf), "Delete methods: <");
 1951                 sep = 0;
 1952                 for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
 1953                         if (softc->delete_available & (1 << i)) {
 1954                                 if (sep) {
 1955                                         strlcat(buf, ",", sizeof(buf));
 1956                                 } else {
 1957                                     sep = 1;
 1958                                 }
 1959                                 strlcat(buf, da_delete_method_names[i],
 1960                                     sizeof(buf));
 1961                                 if (i == softc->delete_method) {
 1962                                         strlcat(buf, "(*)", sizeof(buf));
 1963                                 }
 1964                         }
 1965                 }
 1966                 if (sep == 0) {
 1967                         if (softc->delete_method == DA_DELETE_NONE) 
 1968                                 strlcat(buf, "NONE(*)", sizeof(buf));
 1969                         else
 1970                                 strlcat(buf, "DISABLED(*)", sizeof(buf));
 1971                 }
 1972                 strlcat(buf, ">", sizeof(buf));
 1973                 printf("%s%d: %s\n", periph->periph_name,
 1974                     periph->unit_number, buf);
 1975         }
 1976 
 1977         /*
 1978          * Since our peripheral may be invalidated by an error
 1979          * above or an external event, we must release our CCB
 1980          * before releasing the probe lock on the peripheral.
 1981          * The peripheral will only go away once the last lock
 1982          * is removed, and we need it around for the CCB release
 1983          * operation.
 1984          */
 1985         xpt_release_ccb(ccb);
 1986         softc->state = DA_STATE_NORMAL;
 1987         softc->flags |= DA_FLAG_PROBED;
 1988         daschedule(periph);
 1989         wakeup(&softc->disk->d_mediasize);
 1990         if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
 1991                 softc->flags |= DA_FLAG_ANNOUNCED;
 1992                 cam_periph_unhold(periph);
 1993         } else
 1994                 cam_periph_release_locked(periph);
 1995 }
 1996 
 1997 static void
 1998 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
 1999 {
 2000         int i, delete_method;
 2001 
 2002         delete_method = default_method;
 2003 
 2004         /*
 2005          * Use the pre-defined order to choose the best
 2006          * performing delete.
 2007          */
 2008         for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
 2009                 if (softc->delete_available & (1 << i)) {
 2010                         dadeletemethodset(softc, i);
 2011                         return;
 2012                 }
 2013         }
 2014         dadeletemethodset(softc, delete_method);
 2015 }
 2016 
 2017 static int
 2018 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
 2019 {
 2020         char buf[16];
 2021         const char *p;
 2022         struct da_softc *softc;
 2023         int i, error, methods, value;
 2024 
 2025         softc = (struct da_softc *)arg1;
 2026 
 2027         value = softc->delete_method;
 2028         if (value < 0 || value > DA_DELETE_MAX)
 2029                 p = "UNKNOWN";
 2030         else
 2031                 p = da_delete_method_names[value];
 2032         strncpy(buf, p, sizeof(buf));
 2033         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
 2034         if (error != 0 || req->newptr == NULL)
 2035                 return (error);
 2036         methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
 2037         for (i = 0; i <= DA_DELETE_MAX; i++) {
 2038                 if (!(methods & (1 << i)) ||
 2039                     strcmp(buf, da_delete_method_names[i]) != 0)
 2040                         continue;
 2041                 dadeletemethodset(softc, i);
 2042                 return (0);
 2043         }
 2044         return (EINVAL);
 2045 }
 2046 
 2047 static cam_status
 2048 daregister(struct cam_periph *periph, void *arg)
 2049 {
 2050         struct da_softc *softc;
 2051         struct ccb_pathinq cpi;
 2052         struct ccb_getdev *cgd;
 2053         char tmpstr[80];
 2054         caddr_t match;
 2055 
 2056         cgd = (struct ccb_getdev *)arg;
 2057         if (cgd == NULL) {
 2058                 printf("daregister: no getdev CCB, can't register device\n");
 2059                 return(CAM_REQ_CMP_ERR);
 2060         }
 2061 
 2062         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
 2063             M_NOWAIT|M_ZERO);
 2064 
 2065         if (softc == NULL) {
 2066                 printf("daregister: Unable to probe new device. "
 2067                        "Unable to allocate softc\n");                           
 2068                 return(CAM_REQ_CMP_ERR);
 2069         }
 2070 
 2071         LIST_INIT(&softc->pending_ccbs);
 2072         softc->state = DA_STATE_PROBE_RC;
 2073         bioq_init(&softc->bio_queue);
 2074         bioq_init(&softc->delete_queue);
 2075         bioq_init(&softc->delete_run_queue);
 2076         if (SID_IS_REMOVABLE(&cgd->inq_data))
 2077                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
 2078         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
 2079         softc->unmap_max_lba = UNMAP_RANGE_MAX;
 2080         softc->ws_max_blks = WS16_MAX_BLKS;
 2081         softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
 2082         softc->sort_io_queue = -1;
 2083 
 2084         periph->softc = softc;
 2085 
 2086         /*
 2087          * See if this device has any quirks.
 2088          */
 2089         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
 2090                                (caddr_t)da_quirk_table,
 2091                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
 2092                                sizeof(*da_quirk_table), scsi_inquiry_match);
 2093 
 2094         if (match != NULL)
 2095                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
 2096         else
 2097                 softc->quirks = DA_Q_NONE;
 2098 
 2099         /* Check if the SIM does not want 6 byte commands */
 2100         bzero(&cpi, sizeof(cpi));
 2101         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 2102         cpi.ccb_h.func_code = XPT_PATH_INQ;
 2103         xpt_action((union ccb *)&cpi);
 2104         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
 2105                 softc->quirks |= DA_Q_NO_6_BYTE;
 2106 
 2107         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
 2108 
 2109         /*
 2110          * Take an exclusive refcount on the periph while dastart is called
 2111          * to finish the probe.  The reference will be dropped in dadone at
 2112          * the end of probe.
 2113          */
 2114         (void)cam_periph_hold(periph, PRIBIO);
 2115 
 2116         /*
 2117          * Schedule a periodic event to occasionally send an
 2118          * ordered tag to a device.
 2119          */
 2120         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
 2121         callout_reset(&softc->sendordered_c,
 2122             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
 2123             dasendorderedtag, softc);
 2124 
 2125         cam_periph_unlock(periph);
 2126         /*
 2127          * RBC devices don't have to support READ(6), only READ(10).
 2128          */
 2129         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
 2130                 softc->minimum_cmd_size = 10;
 2131         else
 2132                 softc->minimum_cmd_size = 6;
 2133 
 2134         /*
 2135          * Load the user's default, if any.
 2136          */
 2137         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
 2138                  periph->unit_number);
 2139         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
 2140 
 2141         /*
 2142          * 6, 10, 12 and 16 are the currently permissible values.
 2143          */
 2144         if (softc->minimum_cmd_size < 6)
 2145                 softc->minimum_cmd_size = 6;
 2146         else if ((softc->minimum_cmd_size > 6)
 2147               && (softc->minimum_cmd_size <= 10))
 2148                 softc->minimum_cmd_size = 10;
 2149         else if ((softc->minimum_cmd_size > 10)
 2150               && (softc->minimum_cmd_size <= 12))
 2151                 softc->minimum_cmd_size = 12;
 2152         else if (softc->minimum_cmd_size > 12)
 2153                 softc->minimum_cmd_size = 16;
 2154 
 2155         /* Predict whether device may support READ CAPACITY(16). */
 2156         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
 2157             (softc->quirks & DA_Q_NO_RC16) == 0) {
 2158                 softc->flags |= DA_FLAG_CAN_RC16;
 2159                 softc->state = DA_STATE_PROBE_RC16;
 2160         }
 2161 
 2162         /*
 2163          * Register this media as a disk.
 2164          */
 2165         softc->disk = disk_alloc();
 2166         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
 2167                           periph->unit_number, 0,
 2168                           DEVSTAT_BS_UNAVAILABLE,
 2169                           SID_TYPE(&cgd->inq_data) |
 2170                           XPORT_DEVSTAT_TYPE(cpi.transport),
 2171                           DEVSTAT_PRIORITY_DISK);
 2172         softc->disk->d_open = daopen;
 2173         softc->disk->d_close = daclose;
 2174         softc->disk->d_strategy = dastrategy;
 2175         softc->disk->d_dump = dadump;
 2176         softc->disk->d_getattr = dagetattr;
 2177         softc->disk->d_gone = dadiskgonecb;
 2178         softc->disk->d_name = "da";
 2179         softc->disk->d_drv1 = periph;
 2180         if (cpi.maxio == 0)
 2181                 softc->maxio = DFLTPHYS;        /* traditional default */
 2182         else if (cpi.maxio > MAXPHYS)
 2183                 softc->maxio = MAXPHYS;         /* for safety */
 2184         else
 2185                 softc->maxio = cpi.maxio;
 2186         softc->disk->d_maxsize = softc->maxio;
 2187         softc->disk->d_unit = periph->unit_number;
 2188         softc->disk->d_flags = 0;
 2189         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
 2190                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
 2191         if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
 2192                 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
 2193         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
 2194             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
 2195         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
 2196         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
 2197             cgd->inq_data.product, sizeof(cgd->inq_data.product),
 2198             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
 2199         softc->disk->d_hba_vendor = cpi.hba_vendor;
 2200         softc->disk->d_hba_device = cpi.hba_device;
 2201         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
 2202         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
 2203 
 2204         /*
 2205          * Acquire a reference to the periph before we register with GEOM.
 2206          * We'll release this reference once GEOM calls us back (via
 2207          * dadiskgonecb()) telling us that our provider has been freed.
 2208          */
 2209         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 2210                 xpt_print(periph->path, "%s: lost periph during "
 2211                           "registration!\n", __func__);
 2212                 cam_periph_lock(periph);
 2213                 return (CAM_REQ_CMP_ERR);
 2214         }
 2215 
 2216         disk_create(softc->disk, DISK_VERSION);
 2217         cam_periph_lock(periph);
 2218 
 2219         /*
 2220          * Add async callbacks for events of interest.
 2221          * I don't bother checking if this fails as,
 2222          * in most cases, the system will function just
 2223          * fine without them and the only alternative
 2224          * would be to not attach the device on failure.
 2225          */
 2226         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
 2227             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
 2228             daasync, periph, periph->path);
 2229 
 2230         /*
 2231          * Emit an attribute changed notification just in case 
 2232          * physical path information arrived before our async
 2233          * event handler was registered, but after anyone attaching
 2234          * to our disk device polled it.
 2235          */
 2236         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
 2237 
 2238         /*
 2239          * Schedule a periodic media polling events.
 2240          */
 2241         callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0);
 2242         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
 2243             (cgd->inq_flags & SID_AEN) == 0 &&
 2244             da_poll_period != 0)
 2245                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
 2246                     damediapoll, periph);
 2247 
 2248         xpt_schedule(periph, CAM_PRIORITY_DEV);
 2249 
 2250         return(CAM_REQ_CMP);
 2251 }
 2252 
 2253 static void
 2254 dastart(struct cam_periph *periph, union ccb *start_ccb)
 2255 {
 2256         struct da_softc *softc;
 2257 
 2258         softc = (struct da_softc *)periph->softc;
 2259 
 2260         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
 2261 
 2262 skipstate:
 2263         switch (softc->state) {
 2264         case DA_STATE_NORMAL:
 2265         {
 2266                 struct bio *bp;
 2267                 uint8_t tag_code;
 2268 
 2269                 /* Execute immediate CCB if waiting. */
 2270                 if (periph->immediate_priority <= periph->pinfo.priority) {
 2271                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
 2272                                         ("queuing for immediate ccb\n"));
 2273                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
 2274                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
 2275                                           periph_links.sle);
 2276                         periph->immediate_priority = CAM_PRIORITY_NONE;
 2277                         wakeup(&periph->ccb_list);
 2278                         /* May have more work to do, so ensure we stay scheduled */
 2279                         daschedule(periph);
 2280                         break;
 2281                 }
 2282 
 2283                 /* Run BIO_DELETE if not running yet. */
 2284                 if (!softc->delete_running &&
 2285                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
 2286                         if (softc->delete_func != NULL) {
 2287                                 softc->delete_func(periph, start_ccb, bp);
 2288                                 goto out;
 2289                         } else {
 2290                                 bioq_flush(&softc->delete_queue, NULL, 0);
 2291                                 /* FALLTHROUGH */
 2292                         }
 2293                 }
 2294 
 2295                 /* Run regular command. */
 2296                 bp = bioq_takefirst(&softc->bio_queue);
 2297                 if (bp == NULL) {
 2298                         if (softc->tur) {
 2299                                 softc->tur = 0;
 2300                                 scsi_test_unit_ready(&start_ccb->csio,
 2301                                      /*retries*/ da_retry_count,
 2302                                      dadone,
 2303                                      MSG_SIMPLE_Q_TAG,
 2304                                      SSD_FULL_SIZE,
 2305                                      da_default_timeout * 1000);
 2306                                 start_ccb->ccb_h.ccb_bp = NULL;
 2307                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
 2308                                 xpt_action(start_ccb);
 2309                         } else
 2310                                 xpt_release_ccb(start_ccb);
 2311                         break;
 2312                 }
 2313                 if (softc->tur) {
 2314                         softc->tur = 0;
 2315                         cam_periph_release_locked(periph);
 2316                 }
 2317 
 2318                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
 2319                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
 2320                         softc->flags &= ~DA_FLAG_NEED_OTAG;
 2321                         softc->flags |= DA_FLAG_WAS_OTAG;
 2322                         tag_code = MSG_ORDERED_Q_TAG;
 2323                 } else {
 2324                         tag_code = MSG_SIMPLE_Q_TAG;
 2325                 }
 2326 
 2327                 switch (bp->bio_cmd) {
 2328                 case BIO_WRITE:
 2329                         softc->flags |= DA_FLAG_DIRTY;
 2330                         /* FALLTHROUGH */
 2331                 case BIO_READ:
 2332                         scsi_read_write(&start_ccb->csio,
 2333                                         /*retries*/da_retry_count,
 2334                                         /*cbfcnp*/dadone,
 2335                                         /*tag_action*/tag_code,
 2336                                         /*read_op*/(bp->bio_cmd == BIO_READ ?
 2337                                         SCSI_RW_READ : SCSI_RW_WRITE) |
 2338                                         ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
 2339                                         SCSI_RW_BIO : 0),
 2340                                         /*byte2*/0,
 2341                                         softc->minimum_cmd_size,
 2342                                         /*lba*/bp->bio_pblkno,
 2343                                         /*block_count*/bp->bio_bcount /
 2344                                         softc->params.secsize,
 2345                                         /*data_ptr*/ (bp->bio_flags &
 2346                                         BIO_UNMAPPED) != 0 ? (void *)bp :
 2347                                         bp->bio_data,
 2348                                         /*dxfer_len*/ bp->bio_bcount,
 2349                                         /*sense_len*/SSD_FULL_SIZE,
 2350                                         da_default_timeout * 1000);
 2351                         break;
 2352                 case BIO_FLUSH:
 2353                         /*
 2354                          * BIO_FLUSH doesn't currently communicate
 2355                          * range data, so we synchronize the cache
 2356                          * over the whole disk.  We also force
 2357                          * ordered tag semantics the flush applies
 2358                          * to all previously queued I/O.
 2359                          */
 2360                         scsi_synchronize_cache(&start_ccb->csio,
 2361                                                /*retries*/1,
 2362                                                /*cbfcnp*/dadone,
 2363                                                MSG_ORDERED_Q_TAG,
 2364                                                /*begin_lba*/0,
 2365                                                /*lb_count*/0,
 2366                                                SSD_FULL_SIZE,
 2367                                                da_default_timeout*1000);
 2368                         break;
 2369                 }
 2370                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
 2371 
 2372 out:
 2373                 LIST_INSERT_HEAD(&softc->pending_ccbs,
 2374                                  &start_ccb->ccb_h, periph_links.le);
 2375 
 2376                 /* We expect a unit attention from this device */
 2377                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
 2378                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
 2379                         softc->flags &= ~DA_FLAG_RETRY_UA;
 2380                 }
 2381 
 2382                 start_ccb->ccb_h.ccb_bp = bp;
 2383                 xpt_action(start_ccb);
 2384 
 2385                 /* May have more work to do, so ensure we stay scheduled */
 2386                 daschedule(periph);
 2387                 break;
 2388         }
 2389         case DA_STATE_PROBE_RC:
 2390         {
 2391                 struct scsi_read_capacity_data *rcap;
 2392 
 2393                 rcap = (struct scsi_read_capacity_data *)
 2394                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
 2395                 if (rcap == NULL) {
 2396                         printf("dastart: Couldn't malloc read_capacity data\n");
 2397                         /* da_free_periph??? */
 2398                         break;
 2399                 }
 2400                 scsi_read_capacity(&start_ccb->csio,
 2401                                    /*retries*/da_retry_count,
 2402                                    dadone,
 2403                                    MSG_SIMPLE_Q_TAG,
 2404                                    rcap,
 2405                                    SSD_FULL_SIZE,
 2406                                    /*timeout*/5000);
 2407                 start_ccb->ccb_h.ccb_bp = NULL;
 2408                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
 2409                 xpt_action(start_ccb);
 2410                 break;
 2411         }
 2412         case DA_STATE_PROBE_RC16:
 2413         {
 2414                 struct scsi_read_capacity_data_long *rcaplong;
 2415 
 2416                 rcaplong = (struct scsi_read_capacity_data_long *)
 2417                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
 2418                 if (rcaplong == NULL) {
 2419                         printf("dastart: Couldn't malloc read_capacity data\n");
 2420                         /* da_free_periph??? */
 2421                         break;
 2422                 }
 2423                 scsi_read_capacity_16(&start_ccb->csio,
 2424                                       /*retries*/ da_retry_count,
 2425                                       /*cbfcnp*/ dadone,
 2426                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
 2427                                       /*lba*/ 0,
 2428                                       /*reladr*/ 0,
 2429                                       /*pmi*/ 0,
 2430                                       rcaplong,
 2431                                       /*sense_len*/ SSD_FULL_SIZE,
 2432                                       /*timeout*/ da_default_timeout * 1000);
 2433                 start_ccb->ccb_h.ccb_bp = NULL;
 2434                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
 2435                 xpt_action(start_ccb);
 2436                 break;
 2437         }
 2438         case DA_STATE_PROBE_LBP:
 2439         {
 2440                 struct scsi_vpd_logical_block_prov *lbp;
 2441 
 2442                 if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
 2443                         /*
 2444                          * If we get here we don't support any SBC-3 delete
 2445                          * methods with UNMAP as the Logical Block Provisioning
 2446                          * VPD page support is required for devices which
 2447                          * support it according to T10/1799-D Revision 31
 2448                          * however older revisions of the spec don't mandate
 2449                          * this so we currently don't remove these methods
 2450                          * from the available set.
 2451                          */
 2452                         softc->state = DA_STATE_PROBE_BLK_LIMITS;
 2453                         goto skipstate;
 2454                 }
 2455 
 2456                 lbp = (struct scsi_vpd_logical_block_prov *)
 2457                         malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
 2458 
 2459                 if (lbp == NULL) {
 2460                         printf("dastart: Couldn't malloc lbp data\n");
 2461                         /* da_free_periph??? */
 2462                         break;
 2463                 }
 2464 
 2465                 scsi_inquiry(&start_ccb->csio,
 2466                              /*retries*/da_retry_count,
 2467                              /*cbfcnp*/dadone,
 2468                              /*tag_action*/MSG_SIMPLE_Q_TAG,
 2469                              /*inq_buf*/(u_int8_t *)lbp,
 2470                              /*inq_len*/sizeof(*lbp),
 2471                              /*evpd*/TRUE,
 2472                              /*page_code*/SVPD_LBP,
 2473                              /*sense_len*/SSD_MIN_SIZE,
 2474                              /*timeout*/da_default_timeout * 1000);
 2475                 start_ccb->ccb_h.ccb_bp = NULL;
 2476                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
 2477                 xpt_action(start_ccb);
 2478                 break;
 2479         }
 2480         case DA_STATE_PROBE_BLK_LIMITS:
 2481         {
 2482                 struct scsi_vpd_block_limits *block_limits;
 2483 
 2484                 if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
 2485                         /* Not supported skip to next probe */
 2486                         softc->state = DA_STATE_PROBE_BDC;
 2487                         goto skipstate;
 2488                 }
 2489 
 2490                 block_limits = (struct scsi_vpd_block_limits *)
 2491                         malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
 2492 
 2493                 if (block_limits == NULL) {
 2494                         printf("dastart: Couldn't malloc block_limits data\n");
 2495                         /* da_free_periph??? */
 2496                         break;
 2497                 }
 2498 
 2499                 scsi_inquiry(&start_ccb->csio,
 2500                              /*retries*/da_retry_count,
 2501                              /*cbfcnp*/dadone,
 2502                              /*tag_action*/MSG_SIMPLE_Q_TAG,
 2503                              /*inq_buf*/(u_int8_t *)block_limits,
 2504                              /*inq_len*/sizeof(*block_limits),
 2505                              /*evpd*/TRUE,
 2506                              /*page_code*/SVPD_BLOCK_LIMITS,
 2507                              /*sense_len*/SSD_MIN_SIZE,
 2508                              /*timeout*/da_default_timeout * 1000);
 2509                 start_ccb->ccb_h.ccb_bp = NULL;
 2510                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
 2511                 xpt_action(start_ccb);
 2512                 break;
 2513         }
 2514         case DA_STATE_PROBE_BDC:
 2515         {
 2516                 struct scsi_vpd_block_characteristics *bdc;
 2517 
 2518                 if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
 2519                         softc->state = DA_STATE_PROBE_ATA;
 2520                         goto skipstate;
 2521                 }
 2522 
 2523                 bdc = (struct scsi_vpd_block_characteristics *)
 2524                         malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
 2525 
 2526                 if (bdc == NULL) {
 2527                         printf("dastart: Couldn't malloc bdc data\n");
 2528                         /* da_free_periph??? */
 2529                         break;
 2530                 }
 2531 
 2532                 scsi_inquiry(&start_ccb->csio,
 2533                              /*retries*/da_retry_count,
 2534                              /*cbfcnp*/dadone,
 2535                              /*tag_action*/MSG_SIMPLE_Q_TAG,
 2536                              /*inq_buf*/(u_int8_t *)bdc,
 2537                              /*inq_len*/sizeof(*bdc),
 2538                              /*evpd*/TRUE,
 2539                              /*page_code*/SVPD_BDC,
 2540                              /*sense_len*/SSD_MIN_SIZE,
 2541                              /*timeout*/da_default_timeout * 1000);
 2542                 start_ccb->ccb_h.ccb_bp = NULL;
 2543                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
 2544                 xpt_action(start_ccb);
 2545                 break;
 2546         }
 2547         case DA_STATE_PROBE_ATA:
 2548         {
 2549                 struct ata_params *ata_params;
 2550 
 2551                 if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
 2552                         daprobedone(periph, start_ccb);
 2553                         break;
 2554                 }
 2555 
 2556                 ata_params = (struct ata_params*)
 2557                         malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
 2558 
 2559                 if (ata_params == NULL) {
 2560                         printf("dastart: Couldn't malloc ata_params data\n");
 2561                         /* da_free_periph??? */
 2562                         break;
 2563                 }
 2564 
 2565                 scsi_ata_identify(&start_ccb->csio,
 2566                                   /*retries*/da_retry_count,
 2567                                   /*cbfcnp*/dadone,
 2568                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
 2569                                   /*data_ptr*/(u_int8_t *)ata_params,
 2570                                   /*dxfer_len*/sizeof(*ata_params),
 2571                                   /*sense_len*/SSD_FULL_SIZE,
 2572                                   /*timeout*/da_default_timeout * 1000);
 2573                 start_ccb->ccb_h.ccb_bp = NULL;
 2574                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
 2575                 xpt_action(start_ccb);
 2576                 break;
 2577         }
 2578         }
 2579 }
 2580 
 2581 /*
 2582  * In each of the methods below, while its the caller's
 2583  * responsibility to ensure the request will fit into a
 2584  * single device request, we might have changed the delete
 2585  * method due to the device incorrectly advertising either
 2586  * its supported methods or limits.
 2587  * 
 2588  * To prevent this causing further issues we validate the
 2589  * against the methods limits, and warn which would
 2590  * otherwise be unnecessary.
 2591  */
 2592 static void
 2593 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
 2594 {
 2595         struct da_softc *softc = (struct da_softc *)periph->softc;;
 2596         struct bio *bp1;
 2597         uint8_t *buf = softc->unmap_buf;
 2598         uint64_t lba, lastlba = (uint64_t)-1;
 2599         uint64_t totalcount = 0;
 2600         uint64_t count;
 2601         uint32_t lastcount = 0, c;
 2602         uint32_t off, ranges = 0;
 2603 
 2604         /*
 2605          * Currently this doesn't take the UNMAP
 2606          * Granularity and Granularity Alignment
 2607          * fields into account.
 2608          *
 2609          * This could result in both unoptimal unmap
 2610          * requests as as well as UNMAP calls unmapping
 2611          * fewer LBA's than requested.
 2612          */
 2613 
 2614         softc->delete_running = 1;
 2615         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
 2616         bp1 = bp;
 2617         do {
 2618                 bioq_remove(&softc->delete_queue, bp1);
 2619                 if (bp1 != bp)
 2620                         bioq_insert_tail(&softc->delete_run_queue, bp1);
 2621                 lba = bp1->bio_pblkno;
 2622                 count = bp1->bio_bcount / softc->params.secsize;
 2623 
 2624                 /* Try to extend the previous range. */
 2625                 if (lba == lastlba) {
 2626                         c = omin(count, UNMAP_RANGE_MAX - lastcount);
 2627                         lastcount += c;
 2628                         off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
 2629                               UNMAP_HEAD_SIZE;
 2630                         scsi_ulto4b(lastcount, &buf[off + 8]);
 2631                         count -= c;
 2632                         lba +=c;
 2633                         totalcount += c;
 2634                 }
 2635 
 2636                 while (count > 0) {
 2637                         c = omin(count, UNMAP_RANGE_MAX);
 2638                         if (totalcount + c > softc->unmap_max_lba ||
 2639                             ranges >= softc->unmap_max_ranges) {
 2640                                 xpt_print(periph->path,
 2641                                     "%s issuing short delete %ld > %ld"
 2642                                     "|| %d >= %d",
 2643                                     da_delete_method_desc[softc->delete_method],
 2644                                     totalcount + c, softc->unmap_max_lba,
 2645                                     ranges, softc->unmap_max_ranges);
 2646                                 break;
 2647                         }
 2648                         off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
 2649                         scsi_u64to8b(lba, &buf[off + 0]);
 2650                         scsi_ulto4b(c, &buf[off + 8]);
 2651                         lba += c;
 2652                         totalcount += c;
 2653                         ranges++;
 2654                         count -= c;
 2655                         lastcount = c;
 2656                 }
 2657                 lastlba = lba;
 2658                 bp1 = bioq_first(&softc->delete_queue);
 2659                 if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
 2660                     totalcount + bp1->bio_bcount /
 2661                     softc->params.secsize > softc->unmap_max_lba)
 2662                         break;
 2663         } while (1);
 2664         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
 2665         scsi_ulto2b(ranges * 16, &buf[2]);
 2666 
 2667         scsi_unmap(&ccb->csio,
 2668                    /*retries*/da_retry_count,
 2669                    /*cbfcnp*/dadone,
 2670                    /*tag_action*/MSG_SIMPLE_Q_TAG,
 2671                    /*byte2*/0,
 2672                    /*data_ptr*/ buf,
 2673                    /*dxfer_len*/ ranges * 16 + 8,
 2674                    /*sense_len*/SSD_FULL_SIZE,
 2675                    da_default_timeout * 1000);
 2676         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
 2677 }
 2678 
 2679 static void
 2680 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
 2681 {
 2682         struct da_softc *softc = (struct da_softc *)periph->softc;
 2683         struct bio *bp1;
 2684         uint8_t *buf = softc->unmap_buf;
 2685         uint64_t lastlba = (uint64_t)-1;
 2686         uint64_t count;
 2687         uint64_t lba;
 2688         uint32_t lastcount = 0, c, requestcount;
 2689         int ranges = 0, off, block_count;
 2690 
 2691         softc->delete_running = 1;
 2692         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
 2693         bp1 = bp;
 2694         do {
 2695                 bioq_remove(&softc->delete_queue, bp1);
 2696                 if (bp1 != bp)
 2697                         bioq_insert_tail(&softc->delete_run_queue, bp1);
 2698                 lba = bp1->bio_pblkno;
 2699                 count = bp1->bio_bcount / softc->params.secsize;
 2700                 requestcount = count;
 2701 
 2702                 /* Try to extend the previous range. */
 2703                 if (lba == lastlba) {
 2704                         c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
 2705                         lastcount += c;
 2706                         off = (ranges - 1) * 8;
 2707                         buf[off + 6] = lastcount & 0xff;
 2708                         buf[off + 7] = (lastcount >> 8) & 0xff;
 2709                         count -= c;
 2710                         lba += c;
 2711                 }
 2712 
 2713                 while (count > 0) {
 2714                         c = omin(count, ATA_DSM_RANGE_MAX);
 2715                         off = ranges * 8;
 2716 
 2717                         buf[off + 0] = lba & 0xff;
 2718                         buf[off + 1] = (lba >> 8) & 0xff;
 2719                         buf[off + 2] = (lba >> 16) & 0xff;
 2720                         buf[off + 3] = (lba >> 24) & 0xff;
 2721                         buf[off + 4] = (lba >> 32) & 0xff;
 2722                         buf[off + 5] = (lba >> 40) & 0xff;
 2723                         buf[off + 6] = c & 0xff;
 2724                         buf[off + 7] = (c >> 8) & 0xff;
 2725                         lba += c;
 2726                         ranges++;
 2727                         count -= c;
 2728                         lastcount = c;
 2729                         if (count != 0 && ranges == softc->trim_max_ranges) {
 2730                                 xpt_print(periph->path,
 2731                                     "%s issuing short delete %ld > %ld\n",
 2732                                     da_delete_method_desc[softc->delete_method],
 2733                                     requestcount,
 2734                                     (softc->trim_max_ranges - ranges) *
 2735                                     ATA_DSM_RANGE_MAX);
 2736                                 break;
 2737                         }
 2738                 }
 2739                 lastlba = lba;
 2740                 bp1 = bioq_first(&softc->delete_queue);
 2741                 if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
 2742                     (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
 2743                         break;
 2744         } while (1);
 2745 
 2746         block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
 2747         scsi_ata_trim(&ccb->csio,
 2748                       /*retries*/da_retry_count,
 2749                       /*cbfcnp*/dadone,
 2750                       /*tag_action*/MSG_SIMPLE_Q_TAG,
 2751                       block_count,
 2752                       /*data_ptr*/buf,
 2753                       /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
 2754                       /*sense_len*/SSD_FULL_SIZE,
 2755                       da_default_timeout * 1000);
 2756         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
 2757 }
 2758 
 2759 /*
 2760  * We calculate ws_max_blks here based off d_delmaxsize instead
 2761  * of using softc->ws_max_blks as it is absolute max for the
 2762  * device not the protocol max which may well be lower.
 2763  */
 2764 static void
 2765 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
 2766 {
 2767         struct da_softc *softc;
 2768         struct bio *bp1;
 2769         uint64_t ws_max_blks;
 2770         uint64_t lba;
 2771         uint64_t count; /* forward compat with WS32 */
 2772 
 2773         softc = (struct da_softc *)periph->softc;
 2774         ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
 2775         softc->delete_running = 1;
 2776         lba = bp->bio_pblkno;
 2777         count = 0;
 2778         bp1 = bp;
 2779         do {
 2780                 bioq_remove(&softc->delete_queue, bp1);
 2781                 if (bp1 != bp)
 2782                         bioq_insert_tail(&softc->delete_run_queue, bp1);
 2783                 count += bp1->bio_bcount / softc->params.secsize;
 2784                 if (count > ws_max_blks) {
 2785                         xpt_print(periph->path,
 2786                             "%s issuing short delete %ld > %ld\n",
 2787                             da_delete_method_desc[softc->delete_method],
 2788                             count, ws_max_blks);
 2789                         count = omin(count, ws_max_blks);
 2790                         break;
 2791                 }
 2792                 bp1 = bioq_first(&softc->delete_queue);
 2793                 if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
 2794                     count + bp1->bio_bcount /
 2795                     softc->params.secsize > ws_max_blks)
 2796                         break;
 2797         } while (1);
 2798 
 2799         scsi_write_same(&ccb->csio,
 2800                         /*retries*/da_retry_count,
 2801                         /*cbfcnp*/dadone,
 2802                         /*tag_action*/MSG_SIMPLE_Q_TAG,
 2803                         /*byte2*/softc->delete_method ==
 2804                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
 2805                         softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
 2806                         /*lba*/lba,
 2807                         /*block_count*/count,
 2808                         /*data_ptr*/ __DECONST(void *, zero_region),
 2809                         /*dxfer_len*/ softc->params.secsize,
 2810                         /*sense_len*/SSD_FULL_SIZE,
 2811                         da_default_timeout * 1000);
 2812         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
 2813 }
 2814 
 2815 static int
 2816 cmd6workaround(union ccb *ccb)
 2817 {
 2818         struct scsi_rw_6 cmd6;
 2819         struct scsi_rw_10 *cmd10;
 2820         struct da_softc *softc;
 2821         u_int8_t *cdb;
 2822         struct bio *bp;
 2823         int frozen;
 2824 
 2825         cdb = ccb->csio.cdb_io.cdb_bytes;
 2826         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
 2827 
 2828         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
 2829                 da_delete_methods old_method = softc->delete_method;
 2830 
 2831                 /*
 2832                  * Typically there are two reasons for failure here
 2833                  * 1. Delete method was detected as supported but isn't
 2834                  * 2. Delete failed due to invalid params e.g. too big
 2835                  *
 2836                  * While we will attempt to choose an alternative delete method
 2837                  * this may result in short deletes if the existing delete
 2838                  * requests from geom are big for the new method choosen.
 2839                  *
 2840                  * This method assumes that the error which triggered this
 2841                  * will not retry the io otherwise a panic will occur
 2842                  */
 2843                 dadeleteflag(softc, old_method, 0);
 2844                 dadeletemethodchoose(softc, DA_DELETE_DISABLE);
 2845                 if (softc->delete_method == DA_DELETE_DISABLE)
 2846                         xpt_print(ccb->ccb_h.path,
 2847                                   "%s failed, disabling BIO_DELETE\n",
 2848                                   da_delete_method_desc[old_method]);
 2849                 else
 2850                         xpt_print(ccb->ccb_h.path,
 2851                                   "%s failed, switching to %s BIO_DELETE\n",
 2852                                   da_delete_method_desc[old_method],
 2853                                   da_delete_method_desc[softc->delete_method]);
 2854 
 2855                 if (DA_SIO) {
 2856                         while ((bp = bioq_takefirst(&softc->delete_run_queue))
 2857                             != NULL)
 2858                                 bioq_disksort(&softc->delete_queue, bp);
 2859                 } else {
 2860                         while ((bp = bioq_takefirst(&softc->delete_run_queue))
 2861                             != NULL)
 2862                                 bioq_insert_tail(&softc->delete_queue, bp);
 2863                 }
 2864                 bioq_insert_tail(&softc->delete_queue,
 2865                     (struct bio *)ccb->ccb_h.ccb_bp);
 2866                 ccb->ccb_h.ccb_bp = NULL;
 2867                 return (0);
 2868         }
 2869 
 2870         /* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
 2871         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
 2872             (*cdb == PREVENT_ALLOW) &&
 2873             (softc->quirks & DA_Q_NO_PREVENT) == 0) {
 2874                 if (bootverbose)
 2875                         xpt_print(ccb->ccb_h.path,
 2876                             "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
 2877                 softc->quirks |= DA_Q_NO_PREVENT;
 2878                 return (0);
 2879         }
 2880 
 2881         /* Detect unsupported SYNCHRONIZE CACHE(10). */
 2882         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
 2883             (*cdb == SYNCHRONIZE_CACHE) &&
 2884             (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
 2885                 if (bootverbose)
 2886                         xpt_print(ccb->ccb_h.path,
 2887                             "SYNCHRONIZE CACHE(10) not supported.\n");
 2888                 softc->quirks |= DA_Q_NO_SYNC_CACHE;
 2889                 softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
 2890                 return (0);
 2891         }
 2892 
 2893         /* Translation only possible if CDB is an array and cmd is R/W6 */
 2894         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
 2895             (*cdb != READ_6 && *cdb != WRITE_6))
 2896                 return 0;
 2897 
 2898         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
 2899             "increasing minimum_cmd_size to 10.\n");
 2900         softc->minimum_cmd_size = 10;
 2901 
 2902         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
 2903         cmd10 = (struct scsi_rw_10 *)cdb;
 2904         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
 2905         cmd10->byte2 = 0;
 2906         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
 2907         cmd10->reserved = 0;
 2908         scsi_ulto2b(cmd6.length, cmd10->length);
 2909         cmd10->control = cmd6.control;
 2910         ccb->csio.cdb_len = sizeof(*cmd10);
 2911 
 2912         /* Requeue request, unfreezing queue if necessary */
 2913         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
 2914         ccb->ccb_h.status = CAM_REQUEUE_REQ;
 2915         xpt_action(ccb);
 2916         if (frozen) {
 2917                 cam_release_devq(ccb->ccb_h.path,
 2918                                  /*relsim_flags*/0,
 2919                                  /*reduction*/0,
 2920                                  /*timeout*/0,
 2921                                  /*getcount_only*/0);
 2922         }
 2923         return (ERESTART);
 2924 }
 2925 
 2926 static void
 2927 dadone(struct cam_periph *periph, union ccb *done_ccb)
 2928 {
 2929         struct da_softc *softc;
 2930         struct ccb_scsiio *csio;
 2931         u_int32_t  priority;
 2932         da_ccb_state state;
 2933 
 2934         softc = (struct da_softc *)periph->softc;
 2935         priority = done_ccb->ccb_h.pinfo.priority;
 2936 
 2937         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
 2938 
 2939         csio = &done_ccb->csio;
 2940         state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
 2941         switch (state) {
 2942         case DA_CCB_BUFFER_IO:
 2943         case DA_CCB_DELETE:
 2944         {
 2945                 struct bio *bp, *bp1;
 2946 
 2947                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
 2948                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 2949                         int error;
 2950                         int sf;
 2951 
 2952                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
 2953                                 sf = SF_RETRY_UA;
 2954                         else
 2955                                 sf = 0;
 2956 
 2957                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
 2958                         if (error == ERESTART) {
 2959                                 /*
 2960                                  * A retry was scheduled, so
 2961                                  * just return.
 2962                                  */
 2963                                 return;
 2964                         }
 2965                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
 2966                         if (error != 0) {
 2967                                 int queued_error;
 2968 
 2969                                 /*
 2970                                  * return all queued I/O with EIO, so that
 2971                                  * the client can retry these I/Os in the
 2972                                  * proper order should it attempt to recover.
 2973                                  */
 2974                                 queued_error = EIO;
 2975 
 2976                                 if (error == ENXIO
 2977                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
 2978                                         /*
 2979                                          * Catastrophic error.  Mark our pack as
 2980                                          * invalid.
 2981                                          */
 2982                                         /*
 2983                                          * XXX See if this is really a media
 2984                                          * XXX change first?
 2985                                          */
 2986                                         xpt_print(periph->path,
 2987                                             "Invalidating pack\n");
 2988                                         softc->flags |= DA_FLAG_PACK_INVALID;
 2989                                         queued_error = ENXIO;
 2990                                 }
 2991                                 bioq_flush(&softc->bio_queue, NULL,
 2992                                            queued_error);
 2993                                 if (bp != NULL) {
 2994                                         bp->bio_error = error;
 2995                                         bp->bio_resid = bp->bio_bcount;
 2996                                         bp->bio_flags |= BIO_ERROR;
 2997                                 }
 2998                         } else if (bp != NULL) {
 2999                                 if (state == DA_CCB_DELETE)
 3000                                         bp->bio_resid = 0;
 3001                                 else
 3002                                         bp->bio_resid = csio->resid;
 3003                                 bp->bio_error = 0;
 3004                                 if (bp->bio_resid != 0)
 3005                                         bp->bio_flags |= BIO_ERROR;
 3006                         }
 3007                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 3008                                 cam_release_devq(done_ccb->ccb_h.path,
 3009                                                  /*relsim_flags*/0,
 3010                                                  /*reduction*/0,
 3011                                                  /*timeout*/0,
 3012                                                  /*getcount_only*/0);
 3013                 } else if (bp != NULL) {
 3014                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 3015                                 panic("REQ_CMP with QFRZN");
 3016                         if (state == DA_CCB_DELETE)
 3017                                 bp->bio_resid = 0;
 3018                         else
 3019                                 bp->bio_resid = csio->resid;
 3020                         if (csio->resid > 0)
 3021                                 bp->bio_flags |= BIO_ERROR;
 3022                         if (softc->error_inject != 0) {
 3023                                 bp->bio_error = softc->error_inject;
 3024                                 bp->bio_resid = bp->bio_bcount;
 3025                                 bp->bio_flags |= BIO_ERROR;
 3026                                 softc->error_inject = 0;
 3027                         }
 3028                 }
 3029 
 3030                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
 3031                 if (LIST_EMPTY(&softc->pending_ccbs))
 3032                         softc->flags |= DA_FLAG_WAS_OTAG;
 3033 
 3034                 if (state == DA_CCB_DELETE) {
 3035                         while ((bp1 = bioq_takefirst(&softc->delete_run_queue))
 3036                             != NULL) {
 3037                                 bp1->bio_error = bp->bio_error;
 3038                                 if (bp->bio_flags & BIO_ERROR) {
 3039                                         bp1->bio_flags |= BIO_ERROR;
 3040                                         bp1->bio_resid = bp1->bio_bcount;
 3041                                 } else
 3042                                         bp1->bio_resid = 0;
 3043                                 biodone(bp1);
 3044                         }
 3045                         softc->delete_running = 0;
 3046                         if (bp != NULL)
 3047                                 biodone(bp);
 3048                         daschedule(periph);
 3049                 } else if (bp != NULL)
 3050                         biodone(bp);
 3051                 break;
 3052         }
 3053         case DA_CCB_PROBE_RC:
 3054         case DA_CCB_PROBE_RC16:
 3055         {
 3056                 struct     scsi_read_capacity_data *rdcap;
 3057                 struct     scsi_read_capacity_data_long *rcaplong;
 3058                 char       announce_buf[80];
 3059                 int        lbp;
 3060 
 3061                 lbp = 0;
 3062                 rdcap = NULL;
 3063                 rcaplong = NULL;
 3064                 if (state == DA_CCB_PROBE_RC)
 3065                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
 3066                 else
 3067                         rcaplong = (struct scsi_read_capacity_data_long *)
 3068                                 csio->data_ptr;
 3069 
 3070                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3071                         struct disk_params *dp;
 3072                         uint32_t block_size;
 3073                         uint64_t maxsector;
 3074                         u_int lbppbe;   /* LB per physical block exponent. */
 3075                         u_int lalba;    /* Lowest aligned LBA. */
 3076 
 3077                         if (state == DA_CCB_PROBE_RC) {
 3078                                 block_size = scsi_4btoul(rdcap->length);
 3079                                 maxsector = scsi_4btoul(rdcap->addr);
 3080                                 lbppbe = 0;
 3081                                 lalba = 0;
 3082 
 3083                                 /*
 3084                                  * According to SBC-2, if the standard 10
 3085                                  * byte READ CAPACITY command returns 2^32,
 3086                                  * we should issue the 16 byte version of
 3087                                  * the command, since the device in question
 3088                                  * has more sectors than can be represented
 3089                                  * with the short version of the command.
 3090                                  */
 3091                                 if (maxsector == 0xffffffff) {
 3092                                         free(rdcap, M_SCSIDA);
 3093                                         xpt_release_ccb(done_ccb);
 3094                                         softc->state = DA_STATE_PROBE_RC16;
 3095                                         xpt_schedule(periph, priority);
 3096                                         return;
 3097                                 }
 3098                         } else {
 3099                                 block_size = scsi_4btoul(rcaplong->length);
 3100                                 maxsector = scsi_8btou64(rcaplong->addr);
 3101                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
 3102                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
 3103                         }
 3104 
 3105                         /*
 3106                          * Because GEOM code just will panic us if we
 3107                          * give them an 'illegal' value we'll avoid that
 3108                          * here.
 3109                          */
 3110                         if (block_size == 0) {
 3111                                 block_size = 512;
 3112                                 if (maxsector == 0)
 3113                                         maxsector = -1;
 3114                         }
 3115                         if (block_size >= MAXPHYS) {
 3116                                 xpt_print(periph->path,
 3117                                     "unsupportable block size %ju\n",
 3118                                     (uintmax_t) block_size);
 3119                                 announce_buf[0] = '\0';
 3120                                 cam_periph_invalidate(periph);
 3121                         } else {
 3122                                 /*
 3123                                  * We pass rcaplong into dasetgeom(),
 3124                                  * because it will only use it if it is
 3125                                  * non-NULL.
 3126                                  */
 3127                                 dasetgeom(periph, block_size, maxsector,
 3128                                           rcaplong, sizeof(*rcaplong));
 3129                                 lbp = (lalba & SRC16_LBPME_A);
 3130                                 dp = &softc->params;
 3131                                 snprintf(announce_buf, sizeof(announce_buf),
 3132                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
 3133                                         "%dC)", (uintmax_t)
 3134                                         (((uintmax_t)dp->secsize *
 3135                                         dp->sectors) / (1024*1024)),
 3136                                         (uintmax_t)dp->sectors,
 3137                                         dp->secsize, dp->heads,
 3138                                         dp->secs_per_track, dp->cylinders);
 3139                         }
 3140                 } else {
 3141                         int     error;
 3142 
 3143                         announce_buf[0] = '\0';
 3144 
 3145                         /*
 3146                          * Retry any UNIT ATTENTION type errors.  They
 3147                          * are expected at boot.
 3148                          */
 3149                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3150                                         SF_RETRY_UA|SF_NO_PRINT);
 3151                         if (error == ERESTART) {
 3152                                 /*
 3153                                  * A retry was scheuled, so
 3154                                  * just return.
 3155                                  */
 3156                                 return;
 3157                         } else if (error != 0) {
 3158                                 int asc, ascq;
 3159                                 int sense_key, error_code;
 3160                                 int have_sense;
 3161                                 cam_status status;
 3162                                 struct ccb_getdev cgd;
 3163 
 3164                                 /* Don't wedge this device's queue */
 3165                                 status = done_ccb->ccb_h.status;
 3166                                 if ((status & CAM_DEV_QFRZN) != 0)
 3167                                         cam_release_devq(done_ccb->ccb_h.path,
 3168                                                          /*relsim_flags*/0,
 3169                                                          /*reduction*/0,
 3170                                                          /*timeout*/0,
 3171                                                          /*getcount_only*/0);
 3172 
 3173 
 3174                                 xpt_setup_ccb(&cgd.ccb_h, 
 3175                                               done_ccb->ccb_h.path,
 3176                                               CAM_PRIORITY_NORMAL);
 3177                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
 3178                                 xpt_action((union ccb *)&cgd);
 3179 
 3180                                 if (scsi_extract_sense_ccb(done_ccb,
 3181                                     &error_code, &sense_key, &asc, &ascq))
 3182                                         have_sense = TRUE;
 3183                                 else
 3184                                         have_sense = FALSE;
 3185 
 3186                                 /*
 3187                                  * If we tried READ CAPACITY(16) and failed,
 3188                                  * fallback to READ CAPACITY(10).
 3189                                  */
 3190                                 if ((state == DA_CCB_PROBE_RC16) &&
 3191                                     (softc->flags & DA_FLAG_CAN_RC16) &&
 3192                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
 3193                                         CAM_REQ_INVALID) ||
 3194                                      ((have_sense) &&
 3195                                       (error_code == SSD_CURRENT_ERROR) &&
 3196                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
 3197                                         softc->flags &= ~DA_FLAG_CAN_RC16;
 3198                                         free(rdcap, M_SCSIDA);
 3199                                         xpt_release_ccb(done_ccb);
 3200                                         softc->state = DA_STATE_PROBE_RC;
 3201                                         xpt_schedule(periph, priority);
 3202                                         return;
 3203                                 } else
 3204                                 /*
 3205                                  * Attach to anything that claims to be a
 3206                                  * direct access or optical disk device,
 3207                                  * as long as it doesn't return a "Logical
 3208                                  * unit not supported" (0x25) error.
 3209                                  */
 3210                                 if ((have_sense) && (asc != 0x25)
 3211                                  && (error_code == SSD_CURRENT_ERROR)) {
 3212                                         const char *sense_key_desc;
 3213                                         const char *asc_desc;
 3214 
 3215                                         dasetgeom(periph, 512, -1, NULL, 0);
 3216                                         scsi_sense_desc(sense_key, asc, ascq,
 3217                                                         &cgd.inq_data,
 3218                                                         &sense_key_desc,
 3219                                                         &asc_desc);
 3220                                         snprintf(announce_buf,
 3221                                             sizeof(announce_buf),
 3222                                                 "Attempt to query device "
 3223                                                 "size failed: %s, %s",
 3224                                                 sense_key_desc,
 3225                                                 asc_desc);
 3226                                 } else { 
 3227                                         if (have_sense)
 3228                                                 scsi_sense_print(
 3229                                                         &done_ccb->csio);
 3230                                         else {
 3231                                                 xpt_print(periph->path,
 3232                                                     "got CAM status %#x\n",
 3233                                                     done_ccb->ccb_h.status);
 3234                                         }
 3235 
 3236                                         xpt_print(periph->path, "fatal error, "
 3237                                             "failed to attach to device\n");
 3238 
 3239                                         /*
 3240                                          * Free up resources.
 3241                                          */
 3242                                         cam_periph_invalidate(periph);
 3243                                 } 
 3244                         }
 3245                 }
 3246                 free(csio->data_ptr, M_SCSIDA);
 3247                 if (announce_buf[0] != '\0' &&
 3248                     ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
 3249                         /*
 3250                          * Create our sysctl variables, now that we know
 3251                          * we have successfully attached.
 3252                          */
 3253                         /* increase the refcount */
 3254                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
 3255                                 taskqueue_enqueue(taskqueue_thread,
 3256                                                   &softc->sysctl_task);
 3257                                 xpt_announce_periph(periph, announce_buf);
 3258                                 xpt_announce_quirks(periph, softc->quirks,
 3259                                     DA_Q_BIT_STRING);
 3260                         } else {
 3261                                 xpt_print(periph->path, "fatal error, "
 3262                                     "could not acquire reference count\n");
 3263                         }
 3264                 }
 3265 
 3266                 /* We already probed the device. */
 3267                 if (softc->flags & DA_FLAG_PROBED) {
 3268                         daprobedone(periph, done_ccb);
 3269                         return;
 3270                 }
 3271 
 3272                 /* Ensure re-probe doesn't see old delete. */
 3273                 softc->delete_available = 0;
 3274                 if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
 3275                         /*
 3276                          * Based on older SBC-3 spec revisions
 3277                          * any of the UNMAP methods "may" be
 3278                          * available via LBP given this flag so
 3279                          * we flag all of them as availble and
 3280                          * then remove those which further
 3281                          * probes confirm aren't available
 3282                          * later.
 3283                          *
 3284                          * We could also check readcap(16) p_type
 3285                          * flag to exclude one or more invalid
 3286                          * write same (X) types here
 3287                          */
 3288                         dadeleteflag(softc, DA_DELETE_WS16, 1);
 3289                         dadeleteflag(softc, DA_DELETE_WS10, 1);
 3290                         dadeleteflag(softc, DA_DELETE_ZERO, 1);
 3291                         dadeleteflag(softc, DA_DELETE_UNMAP, 1);
 3292 
 3293                         xpt_release_ccb(done_ccb);
 3294                         softc->state = DA_STATE_PROBE_LBP;
 3295                         xpt_schedule(periph, priority);
 3296                         return;
 3297                 }
 3298 
 3299                 xpt_release_ccb(done_ccb);
 3300                 softc->state = DA_STATE_PROBE_BDC;
 3301                 xpt_schedule(periph, priority);
 3302                 return;
 3303         }
 3304         case DA_CCB_PROBE_LBP:
 3305         {
 3306                 struct scsi_vpd_logical_block_prov *lbp;
 3307 
 3308                 lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
 3309 
 3310                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3311                         /*
 3312                          * T10/1799-D Revision 31 states at least one of these
 3313                          * must be supported but we don't currently enforce this.
 3314                          */
 3315                         dadeleteflag(softc, DA_DELETE_WS16,
 3316                                      (lbp->flags & SVPD_LBP_WS16));
 3317                         dadeleteflag(softc, DA_DELETE_WS10,
 3318                                      (lbp->flags & SVPD_LBP_WS10));
 3319                         dadeleteflag(softc, DA_DELETE_ZERO,
 3320                                      (lbp->flags & SVPD_LBP_WS10));
 3321                         dadeleteflag(softc, DA_DELETE_UNMAP,
 3322                                      (lbp->flags & SVPD_LBP_UNMAP));
 3323                 } else {
 3324                         int error;
 3325                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3326                                         SF_RETRY_UA|SF_NO_PRINT);
 3327                         if (error == ERESTART)
 3328                                 return;
 3329                         else if (error != 0) {
 3330                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3331                                         /* Don't wedge this device's queue */
 3332                                         cam_release_devq(done_ccb->ccb_h.path,
 3333                                                          /*relsim_flags*/0,
 3334                                                          /*reduction*/0,
 3335                                                          /*timeout*/0,
 3336                                                          /*getcount_only*/0);
 3337                                 }
 3338 
 3339                                 /*
 3340                                  * Failure indicates we don't support any SBC-3
 3341                                  * delete methods with UNMAP
 3342                                  */
 3343                         }
 3344                 }
 3345 
 3346                 free(lbp, M_SCSIDA);
 3347                 xpt_release_ccb(done_ccb);
 3348                 softc->state = DA_STATE_PROBE_BLK_LIMITS;
 3349                 xpt_schedule(periph, priority);
 3350                 return;
 3351         }
 3352         case DA_CCB_PROBE_BLK_LIMITS:
 3353         {
 3354                 struct scsi_vpd_block_limits *block_limits;
 3355 
 3356                 block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
 3357 
 3358                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3359                         uint32_t max_txfer_len = scsi_4btoul(
 3360                                 block_limits->max_txfer_len);
 3361                         uint32_t max_unmap_lba_cnt = scsi_4btoul(
 3362                                 block_limits->max_unmap_lba_cnt);
 3363                         uint32_t max_unmap_blk_cnt = scsi_4btoul(
 3364                                 block_limits->max_unmap_blk_cnt);
 3365                         uint64_t ws_max_blks = scsi_8btou64(
 3366                                 block_limits->max_write_same_length);
 3367 
 3368                         if (max_txfer_len != 0) {
 3369                                 softc->disk->d_maxsize = MIN(softc->maxio,
 3370                                     (off_t)max_txfer_len * softc->params.secsize);
 3371                         }
 3372 
 3373                         /*
 3374                          * We should already support UNMAP but we check lba
 3375                          * and block count to be sure
 3376                          */
 3377                         if (max_unmap_lba_cnt != 0x00L &&
 3378                             max_unmap_blk_cnt != 0x00L) {
 3379                                 softc->unmap_max_lba = max_unmap_lba_cnt;
 3380                                 softc->unmap_max_ranges = min(max_unmap_blk_cnt,
 3381                                         UNMAP_MAX_RANGES);
 3382                         } else {
 3383                                 /*
 3384                                  * Unexpected UNMAP limits which means the
 3385                                  * device doesn't actually support UNMAP
 3386                                  */
 3387                                 dadeleteflag(softc, DA_DELETE_UNMAP, 0);
 3388                         }
 3389 
 3390                         if (ws_max_blks != 0x00L)
 3391                                 softc->ws_max_blks = ws_max_blks;
 3392                 } else {
 3393                         int error;
 3394                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3395                                         SF_RETRY_UA|SF_NO_PRINT);
 3396                         if (error == ERESTART)
 3397                                 return;
 3398                         else if (error != 0) {
 3399                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3400                                         /* Don't wedge this device's queue */
 3401                                         cam_release_devq(done_ccb->ccb_h.path,
 3402                                                          /*relsim_flags*/0,
 3403                                                          /*reduction*/0,
 3404                                                          /*timeout*/0,
 3405                                                          /*getcount_only*/0);
 3406                                 }
 3407 
 3408                                 /*
 3409                                  * Failure here doesn't mean UNMAP is not
 3410                                  * supported as this is an optional page.
 3411                                  */
 3412                                 softc->unmap_max_lba = 1;
 3413                                 softc->unmap_max_ranges = 1;
 3414                         }
 3415                 }
 3416 
 3417                 free(block_limits, M_SCSIDA);
 3418                 xpt_release_ccb(done_ccb);
 3419                 softc->state = DA_STATE_PROBE_BDC;
 3420                 xpt_schedule(periph, priority);
 3421                 return;
 3422         }
 3423         case DA_CCB_PROBE_BDC:
 3424         {
 3425                 struct scsi_vpd_block_characteristics *bdc;
 3426 
 3427                 bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
 3428 
 3429                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3430                         /*
 3431                          * Disable queue sorting for non-rotational media
 3432                          * by default.
 3433                          */
 3434                         if (scsi_2btoul(bdc->medium_rotation_rate) ==
 3435                             SVPD_BDC_RATE_NONE_ROTATING)
 3436                                 softc->sort_io_queue = 0;
 3437                 } else {
 3438                         int error;
 3439                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3440                                         SF_RETRY_UA|SF_NO_PRINT);
 3441                         if (error == ERESTART)
 3442                                 return;
 3443                         else if (error != 0) {
 3444                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3445                                         /* Don't wedge this device's queue */
 3446                                         cam_release_devq(done_ccb->ccb_h.path,
 3447                                                          /*relsim_flags*/0,
 3448                                                          /*reduction*/0,
 3449                                                          /*timeout*/0,
 3450                                                          /*getcount_only*/0);
 3451                                 }
 3452                         }
 3453                 }
 3454 
 3455                 free(bdc, M_SCSIDA);
 3456                 xpt_release_ccb(done_ccb);
 3457                 softc->state = DA_STATE_PROBE_ATA;
 3458                 xpt_schedule(periph, priority);
 3459                 return;
 3460         }
 3461         case DA_CCB_PROBE_ATA:
 3462         {
 3463                 int i;
 3464                 struct ata_params *ata_params;
 3465                 int16_t *ptr;
 3466 
 3467                 ata_params = (struct ata_params *)csio->data_ptr;
 3468                 ptr = (uint16_t *)ata_params;
 3469 
 3470                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3471                         for (i = 0; i < sizeof(*ata_params) / 2; i++)
 3472                                 ptr[i] = le16toh(ptr[i]);
 3473                         if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
 3474                             (softc->quirks & DA_Q_NO_UNMAP) == 0) {
 3475                                 dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
 3476                                 if (ata_params->max_dsm_blocks != 0)
 3477                                         softc->trim_max_ranges = min(
 3478                                           softc->trim_max_ranges,
 3479                                           ata_params->max_dsm_blocks *
 3480                                           ATA_DSM_BLK_RANGES);
 3481                         }
 3482                         /*
 3483                          * Disable queue sorting for non-rotational media
 3484                          * by default.
 3485                          */
 3486                         if (ata_params->media_rotation_rate == 1)
 3487                                 softc->sort_io_queue = 0;
 3488                 } else {
 3489                         int error;
 3490                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3491                                         SF_RETRY_UA|SF_NO_PRINT);
 3492                         if (error == ERESTART)
 3493                                 return;
 3494                         else if (error != 0) {
 3495                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3496                                         /* Don't wedge this device's queue */
 3497                                         cam_release_devq(done_ccb->ccb_h.path,
 3498                                                          /*relsim_flags*/0,
 3499                                                          /*reduction*/0,
 3500                                                          /*timeout*/0,
 3501                                                          /*getcount_only*/0);
 3502                                 }
 3503                         }
 3504                 }
 3505 
 3506                 free(ata_params, M_SCSIDA);
 3507                 daprobedone(periph, done_ccb);
 3508                 return;
 3509         }
 3510         case DA_CCB_WAITING:
 3511         {
 3512                 /* Caller will release the CCB */
 3513                 wakeup(&done_ccb->ccb_h.cbfcnp);
 3514                 return;
 3515         }
 3516         case DA_CCB_DUMP:
 3517                 /* No-op.  We're polling */
 3518                 return;
 3519         case DA_CCB_TUR:
 3520         {
 3521                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 3522 
 3523                         if (daerror(done_ccb, CAM_RETRY_SELTO,
 3524                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
 3525                             ERESTART)
 3526                                 return;
 3527                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 3528                                 cam_release_devq(done_ccb->ccb_h.path,
 3529                                                  /*relsim_flags*/0,
 3530                                                  /*reduction*/0,
 3531                                                  /*timeout*/0,
 3532                                                  /*getcount_only*/0);
 3533                 }
 3534                 xpt_release_ccb(done_ccb);
 3535                 cam_periph_release_locked(periph);
 3536                 return;
 3537         }
 3538         default:
 3539                 break;
 3540         }
 3541         xpt_release_ccb(done_ccb);
 3542 }
 3543 
 3544 static void
 3545 dareprobe(struct cam_periph *periph)
 3546 {
 3547         struct da_softc   *softc;
 3548         cam_status status;
 3549 
 3550         softc = (struct da_softc *)periph->softc;
 3551 
 3552         /* Probe in progress; don't interfere. */
 3553         if (softc->state != DA_STATE_NORMAL)
 3554                 return;
 3555 
 3556         status = cam_periph_acquire(periph);
 3557         KASSERT(status == CAM_REQ_CMP,
 3558             ("dareprobe: cam_periph_acquire failed"));
 3559 
 3560         if (softc->flags & DA_FLAG_CAN_RC16)
 3561                 softc->state = DA_STATE_PROBE_RC16;
 3562         else
 3563                 softc->state = DA_STATE_PROBE_RC;
 3564 
 3565         xpt_schedule(periph, CAM_PRIORITY_DEV);
 3566 }
 3567 
 3568 static int
 3569 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
 3570 {
 3571         struct da_softc   *softc;
 3572         struct cam_periph *periph;
 3573         int error, error_code, sense_key, asc, ascq;
 3574 
 3575         periph = xpt_path_periph(ccb->ccb_h.path);
 3576         softc = (struct da_softc *)periph->softc;
 3577 
 3578         /*
 3579          * Automatically detect devices that do not support
 3580          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
 3581          */
 3582         error = 0;
 3583         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
 3584                 error = cmd6workaround(ccb);
 3585         } else if (scsi_extract_sense_ccb(ccb,
 3586             &error_code, &sense_key, &asc, &ascq)) {
 3587                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
 3588                         error = cmd6workaround(ccb);
 3589                 /*
 3590                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
 3591                  * query the capacity and notify upper layers.
 3592                  */
 3593                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
 3594                     asc == 0x2A && ascq == 0x09) {
 3595                         xpt_print(periph->path, "Capacity data has changed\n");
 3596                         softc->flags &= ~DA_FLAG_PROBED;
 3597                         dareprobe(periph);
 3598                         sense_flags |= SF_NO_PRINT;
 3599                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
 3600                     asc == 0x28 && ascq == 0x00) {
 3601                         softc->flags &= ~DA_FLAG_PROBED;
 3602                         disk_media_changed(softc->disk, M_NOWAIT);
 3603                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
 3604                     asc == 0x3F && ascq == 0x03) {
 3605                         xpt_print(periph->path, "INQUIRY data has changed\n");
 3606                         softc->flags &= ~DA_FLAG_PROBED;
 3607                         dareprobe(periph);
 3608                         sense_flags |= SF_NO_PRINT;
 3609                 } else if (sense_key == SSD_KEY_NOT_READY &&
 3610                     asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
 3611                         softc->flags |= DA_FLAG_PACK_INVALID;
 3612                         disk_media_gone(softc->disk, M_NOWAIT);
 3613                 }
 3614         }
 3615         if (error == ERESTART)
 3616                 return (ERESTART);
 3617 
 3618         /*
 3619          * XXX
 3620          * Until we have a better way of doing pack validation,
 3621          * don't treat UAs as errors.
 3622          */
 3623         sense_flags |= SF_RETRY_UA;
 3624 
 3625         if (softc->quirks & DA_Q_RETRY_BUSY)
 3626                 sense_flags |= SF_RETRY_BUSY;
 3627         return(cam_periph_error(ccb, cam_flags, sense_flags,
 3628                                 &softc->saved_ccb));
 3629 }
 3630 
 3631 static void
 3632 damediapoll(void *arg)
 3633 {
 3634         struct cam_periph *periph = arg;
 3635         struct da_softc *softc = periph->softc;
 3636 
 3637         if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
 3638                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
 3639                         softc->tur = 1;
 3640                         daschedule(periph);
 3641                 }
 3642         }
 3643         /* Queue us up again */
 3644         if (da_poll_period != 0)
 3645                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
 3646 }
 3647 
 3648 static void
 3649 daprevent(struct cam_periph *periph, int action)
 3650 {
 3651         struct  da_softc *softc;
 3652         union   ccb *ccb;               
 3653         int     error;
 3654                 
 3655         softc = (struct da_softc *)periph->softc;
 3656 
 3657         if (((action == PR_ALLOW)
 3658           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
 3659          || ((action == PR_PREVENT)
 3660           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
 3661                 return;
 3662         }
 3663 
 3664         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 3665 
 3666         scsi_prevent(&ccb->csio,
 3667                      /*retries*/1,
 3668                      /*cbcfp*/dadone,
 3669                      MSG_SIMPLE_Q_TAG,
 3670                      action,
 3671                      SSD_FULL_SIZE,
 3672                      5000);
 3673 
 3674         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
 3675             SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
 3676 
 3677         if (error == 0) {
 3678                 if (action == PR_ALLOW)
 3679                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
 3680                 else
 3681                         softc->flags |= DA_FLAG_PACK_LOCKED;
 3682         }
 3683 
 3684         xpt_release_ccb(ccb);
 3685 }
 3686 
 3687 static void
 3688 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
 3689           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
 3690 {
 3691         struct ccb_calc_geometry ccg;
 3692         struct da_softc *softc;
 3693         struct disk_params *dp;
 3694         u_int lbppbe, lalba;
 3695 
 3696         softc = (struct da_softc *)periph->softc;
 3697 
 3698         dp = &softc->params;
 3699         dp->secsize = block_len;
 3700         dp->sectors = maxsector + 1;
 3701         if (rcaplong != NULL) {
 3702                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
 3703                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
 3704                 lalba &= SRC16_LALBA_A;
 3705         } else {
 3706                 lbppbe = 0;
 3707                 lalba = 0;
 3708         }
 3709 
 3710         if (lbppbe > 0) {
 3711                 dp->stripesize = block_len << lbppbe;
 3712                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
 3713                     dp->stripesize;
 3714         } else if (softc->quirks & DA_Q_4K) {
 3715                 dp->stripesize = 4096;
 3716                 dp->stripeoffset = 0;
 3717         } else {
 3718                 dp->stripesize = 0;
 3719                 dp->stripeoffset = 0;
 3720         }
 3721         /*
 3722          * Have the controller provide us with a geometry
 3723          * for this disk.  The only time the geometry
 3724          * matters is when we boot and the controller
 3725          * is the only one knowledgeable enough to come
 3726          * up with something that will make this a bootable
 3727          * device.
 3728          */
 3729         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 3730         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
 3731         ccg.block_size = dp->secsize;
 3732         ccg.volume_size = dp->sectors;
 3733         ccg.heads = 0;
 3734         ccg.secs_per_track = 0;
 3735         ccg.cylinders = 0;
 3736         xpt_action((union ccb*)&ccg);
 3737         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 3738                 /*
 3739                  * We don't know what went wrong here- but just pick
 3740                  * a geometry so we don't have nasty things like divide
 3741                  * by zero.
 3742                  */
 3743                 dp->heads = 255;
 3744                 dp->secs_per_track = 255;
 3745                 dp->cylinders = dp->sectors / (255 * 255);
 3746                 if (dp->cylinders == 0) {
 3747                         dp->cylinders = 1;
 3748                 }
 3749         } else {
 3750                 dp->heads = ccg.heads;
 3751                 dp->secs_per_track = ccg.secs_per_track;
 3752                 dp->cylinders = ccg.cylinders;
 3753         }
 3754 
 3755         /*
 3756          * If the user supplied a read capacity buffer, and if it is
 3757          * different than the previous buffer, update the data in the EDT.
 3758          * If it's the same, we don't bother.  This avoids sending an
 3759          * update every time someone opens this device.
 3760          */
 3761         if ((rcaplong != NULL)
 3762          && (bcmp(rcaplong, &softc->rcaplong,
 3763                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
 3764                 struct ccb_dev_advinfo cdai;
 3765 
 3766                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 3767                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
 3768                 cdai.buftype = CDAI_TYPE_RCAPLONG;
 3769                 cdai.flags |= CDAI_FLAG_STORE;
 3770                 cdai.bufsiz = rcap_len;
 3771                 cdai.buf = (uint8_t *)rcaplong;
 3772                 xpt_action((union ccb *)&cdai);
 3773                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
 3774                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
 3775                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
 3776                         xpt_print(periph->path, "%s: failed to set read "
 3777                                   "capacity advinfo\n", __func__);
 3778                         /* Use cam_error_print() to decode the status */
 3779                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
 3780                                         CAM_EPF_ALL);
 3781                 } else {
 3782                         bcopy(rcaplong, &softc->rcaplong,
 3783                               min(sizeof(softc->rcaplong), rcap_len));
 3784                 }
 3785         }
 3786 
 3787         softc->disk->d_sectorsize = softc->params.secsize;
 3788         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
 3789         softc->disk->d_stripesize = softc->params.stripesize;
 3790         softc->disk->d_stripeoffset = softc->params.stripeoffset;
 3791         /* XXX: these are not actually "firmware" values, so they may be wrong */
 3792         softc->disk->d_fwsectors = softc->params.secs_per_track;
 3793         softc->disk->d_fwheads = softc->params.heads;
 3794         softc->disk->d_devstat->block_size = softc->params.secsize;
 3795         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
 3796 }
 3797 
 3798 static void
 3799 dasendorderedtag(void *arg)
 3800 {
 3801         struct da_softc *softc = arg;
 3802 
 3803         if (da_send_ordered) {
 3804                 if (!LIST_EMPTY(&softc->pending_ccbs)) {
 3805                         if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
 3806                                 softc->flags |= DA_FLAG_NEED_OTAG;
 3807                         softc->flags &= ~DA_FLAG_WAS_OTAG;
 3808                 }
 3809         }
 3810         /* Queue us up again */
 3811         callout_reset(&softc->sendordered_c,
 3812             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
 3813             dasendorderedtag, softc);
 3814 }
 3815 
 3816 /*
 3817  * Step through all DA peripheral drivers, and if the device is still open,
 3818  * sync the disk cache to physical media.
 3819  */
 3820 static void
 3821 dashutdown(void * arg, int howto)
 3822 {
 3823         struct cam_periph *periph;
 3824         struct da_softc *softc;
 3825         union ccb *ccb;
 3826         int error;
 3827 
 3828         CAM_PERIPH_FOREACH(periph, &dadriver) {
 3829                 softc = (struct da_softc *)periph->softc;
 3830                 if (SCHEDULER_STOPPED()) {
 3831                         /* If we paniced with the lock held, do not recurse. */
 3832                         if (!cam_periph_owned(periph) &&
 3833                             (softc->flags & DA_FLAG_OPEN)) {
 3834                                 dadump(softc->disk, NULL, 0, 0, 0);
 3835                         }
 3836                         continue;
 3837                 }
 3838                 cam_periph_lock(periph);
 3839 
 3840                 /*
 3841                  * We only sync the cache if the drive is still open, and
 3842                  * if the drive is capable of it..
 3843                  */
 3844                 if (((softc->flags & DA_FLAG_OPEN) == 0)
 3845                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
 3846                         cam_periph_unlock(periph);
 3847                         continue;
 3848                 }
 3849 
 3850                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 3851                 scsi_synchronize_cache(&ccb->csio,
 3852                                        /*retries*/0,
 3853                                        /*cbfcnp*/dadone,
 3854                                        MSG_SIMPLE_Q_TAG,
 3855                                        /*begin_lba*/0, /* whole disk */
 3856                                        /*lb_count*/0,
 3857                                        SSD_FULL_SIZE,
 3858                                        60 * 60 * 1000);
 3859 
 3860                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
 3861                     /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
 3862                     softc->disk->d_devstat);
 3863                 if (error != 0)
 3864                         xpt_print(periph->path, "Synchronize cache failed\n");
 3865                 xpt_release_ccb(ccb);
 3866                 cam_periph_unlock(periph);
 3867         }
 3868 }
 3869 
 3870 #else /* !_KERNEL */
 3871 
 3872 /*
 3873  * XXX This is only left out of the kernel build to silence warnings.  If,
 3874  * for some reason this function is used in the kernel, the ifdefs should
 3875  * be moved so it is included both in the kernel and userland.
 3876  */
 3877 void
 3878 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
 3879                  void (*cbfcnp)(struct cam_periph *, union ccb *),
 3880                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
 3881                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
 3882                  u_int32_t timeout)
 3883 {
 3884         struct scsi_format_unit *scsi_cmd;
 3885 
 3886         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
 3887         scsi_cmd->opcode = FORMAT_UNIT;
 3888         scsi_cmd->byte2 = byte2;
 3889         scsi_ulto2b(ileave, scsi_cmd->interleave);
 3890 
 3891         cam_fill_csio(csio,
 3892                       retries,
 3893                       cbfcnp,
 3894                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
 3895                       tag_action,
 3896                       data_ptr,
 3897                       dxfer_len,
 3898                       sense_len,
 3899                       sizeof(*scsi_cmd),
 3900                       timeout);
 3901 }
 3902 
 3903 void
 3904 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
 3905               void (*cbfcnp)(struct cam_periph *, union ccb *),
 3906               u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
 3907               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
 3908               u_int32_t timeout)
 3909 {
 3910         struct scsi_sanitize *scsi_cmd;
 3911 
 3912         scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
 3913         scsi_cmd->opcode = SANITIZE;
 3914         scsi_cmd->byte2 = byte2;
 3915         scsi_cmd->control = control;
 3916         scsi_ulto2b(dxfer_len, scsi_cmd->length);
 3917 
 3918         cam_fill_csio(csio,
 3919                       retries,
 3920                       cbfcnp,
 3921                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
 3922                       tag_action,
 3923                       data_ptr,
 3924                       dxfer_len,
 3925                       sense_len,
 3926                       sizeof(*scsi_cmd),
 3927                       timeout);
 3928 }
 3929 
 3930 #endif /* _KERNEL */

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