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: releng/10.3/sys/cam/scsi/scsi_da.c 292348 2015-12-16 19:01:14Z ken $");
   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_DUMP             = 0x0A,
  127         DA_CCB_DELETE           = 0x0B,
  128         DA_CCB_TUR              = 0x0C,
  129         DA_CCB_TYPE_MASK        = 0x0F,
  130         DA_CCB_RETRY_UA         = 0x10
  131 } da_ccb_state;
  132 
  133 /*
  134  * Order here is important for method choice
  135  *
  136  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
  137  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
  138  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
  139  * import taking 5mins.
  140  *
  141  */
  142 typedef enum {
  143         DA_DELETE_NONE,
  144         DA_DELETE_DISABLE,
  145         DA_DELETE_ATA_TRIM,
  146         DA_DELETE_UNMAP,
  147         DA_DELETE_WS16,
  148         DA_DELETE_WS10,
  149         DA_DELETE_ZERO,
  150         DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
  151         DA_DELETE_MAX = DA_DELETE_ZERO
  152 } da_delete_methods;
  153 
  154 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
  155                               struct bio *bp);
  156 static da_delete_func_t da_delete_trim;
  157 static da_delete_func_t da_delete_unmap;
  158 static da_delete_func_t da_delete_ws;
  159 
  160 static const void * da_delete_functions[] = {
  161         NULL,
  162         NULL,
  163         da_delete_trim,
  164         da_delete_unmap,
  165         da_delete_ws,
  166         da_delete_ws,
  167         da_delete_ws
  168 };
  169 
  170 static const char *da_delete_method_names[] =
  171     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
  172 static const char *da_delete_method_desc[] =
  173     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
  174       "WRITE SAME(10) with UNMAP", "ZERO" };
  175 
  176 /* Offsets into our private area for storing information */
  177 #define ccb_state       ppriv_field0
  178 #define ccb_bp          ppriv_ptr1
  179 
  180 struct disk_params {
  181         u_int8_t  heads;
  182         u_int32_t cylinders;
  183         u_int8_t  secs_per_track;
  184         u_int32_t secsize;      /* Number of bytes/sector */
  185         u_int64_t sectors;      /* total number sectors */
  186         u_int     stripesize;
  187         u_int     stripeoffset;
  188 };
  189 
  190 #define UNMAP_RANGE_MAX         0xffffffff
  191 #define UNMAP_HEAD_SIZE         8
  192 #define UNMAP_RANGE_SIZE        16
  193 #define UNMAP_MAX_RANGES        2048 /* Protocol Max is 4095 */
  194 #define UNMAP_BUF_SIZE          ((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
  195                                 UNMAP_HEAD_SIZE)
  196 
  197 #define WS10_MAX_BLKS           0xffff
  198 #define WS16_MAX_BLKS           0xffffffff
  199 #define ATA_TRIM_MAX_RANGES     ((UNMAP_BUF_SIZE / \
  200         (ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
  201 
  202 struct da_softc {
  203         struct   bio_queue_head bio_queue;
  204         struct   bio_queue_head delete_queue;
  205         struct   bio_queue_head delete_run_queue;
  206         LIST_HEAD(, ccb_hdr) pending_ccbs;
  207         int      tur;                   /* TEST UNIT READY should be sent */
  208         int      refcount;              /* Active xpt_action() calls */
  209         da_state state;
  210         da_flags flags; 
  211         da_quirks quirks;
  212         int      sort_io_queue;
  213         int      minimum_cmd_size;
  214         int      error_inject;
  215         int      trim_max_ranges;
  216         int      delete_running;
  217         int      delete_available;      /* Delete methods possibly available */
  218         u_int    maxio;
  219         uint32_t                unmap_max_ranges;
  220         uint32_t                unmap_max_lba; /* Max LBAs in UNMAP req */
  221         uint64_t                ws_max_blks;
  222         da_delete_methods       delete_method_pref;
  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*", "*", "*"},
  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 & GS SSDs
  990                  * 4k optimised & trim only works in 4k requests + 4k aligned
  991                  */
  992                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
  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                  * Samsung 840 SSDs
 1134                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1135                  */
 1136                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
 1137                 /*quirks*/DA_Q_4K
 1138         },
 1139         {
 1140                 /*
 1141                  * Samsung 843T Series SSDs
 1142                  * 4k optimised
 1143                  */
 1144                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7WD*", "*" },
 1145                 /*quirks*/DA_Q_4K
 1146         },
 1147         {
 1148                 /*
 1149                  * Samsung 850 SSDs
 1150                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1151                  */
 1152                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
 1153                 /*quirks*/DA_Q_4K
 1154         },
 1155         {
 1156                 /*
 1157                  * Samsung PM853T Series SSDs
 1158                  * 4k optimised
 1159                  */
 1160                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7GE*", "*" },
 1161                 /*quirks*/DA_Q_4K
 1162         },
 1163         {
 1164                 /*
 1165                  * SuperTalent TeraDrive CT SSDs
 1166                  * 4k optimised & trim only works in 4k requests + 4k aligned
 1167                  */
 1168                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
 1169                 /*quirks*/DA_Q_4K
 1170         },
 1171         {
 1172                 /*
 1173                  * XceedIOPS SATA SSDs
 1174                  * 4k optimised
 1175                  */
 1176                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
 1177                 /*quirks*/DA_Q_4K
 1178         },
 1179         {
 1180                 /*
 1181                  * Hama Innostor USB-Stick 
 1182                  */
 1183                 { T_DIRECT, SIP_MEDIA_REMOVABLE, "Innostor", "Innostor*", "*" }, 
 1184                 /*quirks*/DA_Q_NO_RC16
 1185         },
 1186         {
 1187                 /*
 1188                  * MX-ES USB Drive by Mach Xtreme
 1189                  */
 1190                 { T_DIRECT, SIP_MEDIA_REMOVABLE, "MX", "MXUB3*", "*"},
 1191                 /*quirks*/DA_Q_NO_RC16
 1192         },
 1193 };
 1194 
 1195 static  disk_strategy_t dastrategy;
 1196 static  dumper_t        dadump;
 1197 static  periph_init_t   dainit;
 1198 static  void            daasync(void *callback_arg, u_int32_t code,
 1199                                 struct cam_path *path, void *arg);
 1200 static  void            dasysctlinit(void *context, int pending);
 1201 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 1202 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
 1203 static  int             dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
 1204 static  void            dadeletemethodset(struct da_softc *softc,
 1205                                           da_delete_methods delete_method);
 1206 static  off_t           dadeletemaxsize(struct da_softc *softc,
 1207                                         da_delete_methods delete_method);
 1208 static  void            dadeletemethodchoose(struct da_softc *softc,
 1209                                              da_delete_methods default_method);
 1210 static  void            daprobedone(struct cam_periph *periph, union ccb *ccb);
 1211 
 1212 static  periph_ctor_t   daregister;
 1213 static  periph_dtor_t   dacleanup;
 1214 static  periph_start_t  dastart;
 1215 static  periph_oninv_t  daoninvalidate;
 1216 static  void            dadone(struct cam_periph *periph,
 1217                                union ccb *done_ccb);
 1218 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 1219                                 u_int32_t sense_flags);
 1220 static void             daprevent(struct cam_periph *periph, int action);
 1221 static void             dareprobe(struct cam_periph *periph);
 1222 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 1223                                   uint64_t maxsector,
 1224                                   struct scsi_read_capacity_data_long *rcaplong,
 1225                                   size_t rcap_size);
 1226 static timeout_t        dasendorderedtag;
 1227 static void             dashutdown(void *arg, int howto);
 1228 static timeout_t        damediapoll;
 1229 
 1230 #ifndef DA_DEFAULT_POLL_PERIOD
 1231 #define DA_DEFAULT_POLL_PERIOD  3
 1232 #endif
 1233 
 1234 #ifndef DA_DEFAULT_TIMEOUT
 1235 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 1236 #endif
 1237 
 1238 #ifndef DA_DEFAULT_RETRY
 1239 #define DA_DEFAULT_RETRY        4
 1240 #endif
 1241 
 1242 #ifndef DA_DEFAULT_SEND_ORDERED
 1243 #define DA_DEFAULT_SEND_ORDERED 1
 1244 #endif
 1245 
 1246 #define DA_SIO (softc->sort_io_queue >= 0 ? \
 1247     softc->sort_io_queue : cam_sort_io_queues)
 1248 
 1249 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
 1250 static int da_retry_count = DA_DEFAULT_RETRY;
 1251 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 1252 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 1253 
 1254 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 1255             "CAM Direct Access Disk driver");
 1256 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
 1257            &da_poll_period, 0, "Media polling period in seconds");
 1258 TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
 1259 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 1260            &da_retry_count, 0, "Normal I/O retry count");
 1261 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 1262 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 1263            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 1264 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 1265 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
 1266            &da_send_ordered, 0, "Send Ordered Tags");
 1267 TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
 1268 
 1269 /*
 1270  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 1271  * to the default timeout, we check to see whether an ordered
 1272  * tagged transaction is appropriate to prevent simple tag
 1273  * starvation.  Since we'd like to ensure that there is at least
 1274  * 1/2 of the timeout length left for a starved transaction to
 1275  * complete after we've sent an ordered tag, we must poll at least
 1276  * four times in every timeout period.  This takes care of the worst
 1277  * case where a starved transaction starts during an interval that
 1278  * meets the requirement "don't send an ordered tag" test so it takes
 1279  * us two intervals to determine that a tag must be sent.
 1280  */
 1281 #ifndef DA_ORDEREDTAG_INTERVAL
 1282 #define DA_ORDEREDTAG_INTERVAL 4
 1283 #endif
 1284 
 1285 static struct periph_driver dadriver =
 1286 {
 1287         dainit, "da",
 1288         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 1289 };
 1290 
 1291 PERIPHDRIVER_DECLARE(da, dadriver);
 1292 
 1293 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 1294 
 1295 static int
 1296 daopen(struct disk *dp)
 1297 {
 1298         struct cam_periph *periph;
 1299         struct da_softc *softc;
 1300         int error;
 1301 
 1302         periph = (struct cam_periph *)dp->d_drv1;
 1303         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 1304                 return (ENXIO);
 1305         }
 1306 
 1307         cam_periph_lock(periph);
 1308         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 1309                 cam_periph_unlock(periph);
 1310                 cam_periph_release(periph);
 1311                 return (error);
 1312         }
 1313 
 1314         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 1315             ("daopen\n"));
 1316 
 1317         softc = (struct da_softc *)periph->softc;
 1318         dareprobe(periph);
 1319 
 1320         /* Wait for the disk size update.  */
 1321         error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
 1322             "dareprobe", 0);
 1323         if (error != 0)
 1324                 xpt_print(periph->path, "unable to retrieve capacity data\n");
 1325 
 1326         if (periph->flags & CAM_PERIPH_INVALID)
 1327                 error = ENXIO;
 1328 
 1329         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 1330             (softc->quirks & DA_Q_NO_PREVENT) == 0)
 1331                 daprevent(periph, PR_PREVENT);
 1332 
 1333         if (error == 0) {
 1334                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 1335                 softc->flags |= DA_FLAG_OPEN;
 1336         }
 1337 
 1338         cam_periph_unhold(periph);
 1339         cam_periph_unlock(periph);
 1340 
 1341         if (error != 0)
 1342                 cam_periph_release(periph);
 1343 
 1344         return (error);
 1345 }
 1346 
 1347 static int
 1348 daclose(struct disk *dp)
 1349 {
 1350         struct  cam_periph *periph;
 1351         struct  da_softc *softc;
 1352         union   ccb *ccb;
 1353         int error;
 1354 
 1355         periph = (struct cam_periph *)dp->d_drv1;
 1356         softc = (struct da_softc *)periph->softc;
 1357         cam_periph_lock(periph);
 1358         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 1359             ("daclose\n"));
 1360 
 1361         if (cam_periph_hold(periph, PRIBIO) == 0) {
 1362 
 1363                 /* Flush disk cache. */
 1364                 if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
 1365                     (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
 1366                     (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
 1367                         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 1368                         scsi_synchronize_cache(&ccb->csio, /*retries*/1,
 1369                             /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
 1370                             /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
 1371                             5 * 60 * 1000);
 1372                         error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
 1373                             /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
 1374                             softc->disk->d_devstat);
 1375                         if (error == 0)
 1376                                 softc->flags &= ~DA_FLAG_DIRTY;
 1377                         xpt_release_ccb(ccb);
 1378                 }
 1379 
 1380                 /* Allow medium removal. */
 1381                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 1382                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
 1383                         daprevent(periph, PR_ALLOW);
 1384 
 1385                 cam_periph_unhold(periph);
 1386         }
 1387 
 1388         /*
 1389          * If we've got removeable media, mark the blocksize as
 1390          * unavailable, since it could change when new media is
 1391          * inserted.
 1392          */
 1393         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
 1394                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
 1395 
 1396         softc->flags &= ~DA_FLAG_OPEN;
 1397         while (softc->refcount != 0)
 1398                 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
 1399         cam_periph_unlock(periph);
 1400         cam_periph_release(periph);
 1401         return (0);
 1402 }
 1403 
 1404 static void
 1405 daschedule(struct cam_periph *periph)
 1406 {
 1407         struct da_softc *softc = (struct da_softc *)periph->softc;
 1408 
 1409         if (softc->state != DA_STATE_NORMAL)
 1410                 return;
 1411 
 1412         /* Check if we have more work to do. */
 1413         if (bioq_first(&softc->bio_queue) ||
 1414             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
 1415             softc->tur) {
 1416                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 1417         }
 1418 }
 1419 
 1420 /*
 1421  * Actually translate the requested transfer into one the physical driver
 1422  * can understand.  The transfer is described by a buf and will include
 1423  * only one physical transfer.
 1424  */
 1425 static void
 1426 dastrategy(struct bio *bp)
 1427 {
 1428         struct cam_periph *periph;
 1429         struct da_softc *softc;
 1430         
 1431         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 1432         softc = (struct da_softc *)periph->softc;
 1433 
 1434         cam_periph_lock(periph);
 1435 
 1436         /*
 1437          * If the device has been made invalid, error out
 1438          */
 1439         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
 1440                 cam_periph_unlock(periph);
 1441                 biofinish(bp, NULL, ENXIO);
 1442                 return;
 1443         }
 1444 
 1445         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
 1446 
 1447         /*
 1448          * Place it in the queue of disk activities for this disk
 1449          */
 1450         if (bp->bio_cmd == BIO_DELETE) {
 1451                 bioq_disksort(&softc->delete_queue, bp);
 1452         } else if (DA_SIO) {
 1453                 bioq_disksort(&softc->bio_queue, bp);
 1454         } else {
 1455                 bioq_insert_tail(&softc->bio_queue, bp);
 1456         }
 1457 
 1458         /*
 1459          * Schedule ourselves for performing the work.
 1460          */
 1461         daschedule(periph);
 1462         cam_periph_unlock(periph);
 1463 
 1464         return;
 1465 }
 1466 
 1467 static int
 1468 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
 1469 {
 1470         struct      cam_periph *periph;
 1471         struct      da_softc *softc;
 1472         u_int       secsize;
 1473         struct      ccb_scsiio csio;
 1474         struct      disk *dp;
 1475         int         error = 0;
 1476 
 1477         dp = arg;
 1478         periph = dp->d_drv1;
 1479         softc = (struct da_softc *)periph->softc;
 1480         cam_periph_lock(periph);
 1481         secsize = softc->params.secsize;
 1482         
 1483         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 1484                 cam_periph_unlock(periph);
 1485                 return (ENXIO);
 1486         }
 1487 
 1488         if (length > 0) {
 1489                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 1490                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
 1491                 scsi_read_write(&csio,
 1492                                 /*retries*/0,
 1493                                 dadone,
 1494                                 MSG_ORDERED_Q_TAG,
 1495                                 /*read*/SCSI_RW_WRITE,
 1496                                 /*byte2*/0,
 1497                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
 1498                                 offset / secsize,
 1499                                 length / secsize,
 1500                                 /*data_ptr*/(u_int8_t *) virtual,
 1501                                 /*dxfer_len*/length,
 1502                                 /*sense_len*/SSD_FULL_SIZE,
 1503                                 da_default_timeout * 1000);
 1504                 xpt_polled_action((union ccb *)&csio);
 1505 
 1506                 error = cam_periph_error((union ccb *)&csio,
 1507                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
 1508                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
 1509                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
 1510                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
 1511                 if (error != 0)
 1512                         printf("Aborting dump due to I/O error.\n");
 1513                 cam_periph_unlock(periph);
 1514                 return (error);
 1515         }
 1516                 
 1517         /*
 1518          * Sync the disk cache contents to the physical media.
 1519          */
 1520         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
 1521 
 1522                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 1523                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
 1524                 scsi_synchronize_cache(&csio,
 1525                                        /*retries*/0,
 1526                                        /*cbfcnp*/dadone,
 1527                                        MSG_SIMPLE_Q_TAG,
 1528                                        /*begin_lba*/0,/* Cover the whole disk */
 1529                                        /*lb_count*/0,
 1530                                        SSD_FULL_SIZE,
 1531                                        5 * 60 * 1000);
 1532                 xpt_polled_action((union ccb *)&csio);
 1533 
 1534                 error = cam_periph_error((union ccb *)&csio,
 1535                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
 1536                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
 1537                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
 1538                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
 1539                 if (error != 0)
 1540                         xpt_print(periph->path, "Synchronize cache failed\n");
 1541         }
 1542         cam_periph_unlock(periph);
 1543         return (error);
 1544 }
 1545 
 1546 static int
 1547 dagetattr(struct bio *bp)
 1548 {
 1549         int ret;
 1550         struct cam_periph *periph;
 1551 
 1552         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 1553         cam_periph_lock(periph);
 1554         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
 1555             periph->path);
 1556         cam_periph_unlock(periph);
 1557         if (ret == 0)
 1558                 bp->bio_completed = bp->bio_length;
 1559         return ret;
 1560 }
 1561 
 1562 static void
 1563 dainit(void)
 1564 {
 1565         cam_status status;
 1566 
 1567         /*
 1568          * Install a global async callback.  This callback will
 1569          * receive async callbacks like "new device found".
 1570          */
 1571         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
 1572 
 1573         if (status != CAM_REQ_CMP) {
 1574                 printf("da: Failed to attach master async callback "
 1575                        "due to status 0x%x!\n", status);
 1576         } else if (da_send_ordered) {
 1577 
 1578                 /* Register our shutdown event handler */
 1579                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 
 1580                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
 1581                     printf("dainit: shutdown event registration failed!\n");
 1582         }
 1583 }
 1584 
 1585 /*
 1586  * Callback from GEOM, called when it has finished cleaning up its
 1587  * resources.
 1588  */
 1589 static void
 1590 dadiskgonecb(struct disk *dp)
 1591 {
 1592         struct cam_periph *periph;
 1593 
 1594         periph = (struct cam_periph *)dp->d_drv1;
 1595         cam_periph_release(periph);
 1596 }
 1597 
 1598 static void
 1599 daoninvalidate(struct cam_periph *periph)
 1600 {
 1601         struct da_softc *softc;
 1602 
 1603         softc = (struct da_softc *)periph->softc;
 1604 
 1605         /*
 1606          * De-register any async callbacks.
 1607          */
 1608         xpt_register_async(0, daasync, periph, periph->path);
 1609 
 1610         softc->flags |= DA_FLAG_PACK_INVALID;
 1611 
 1612         /*
 1613          * Return all queued I/O with ENXIO.
 1614          * XXX Handle any transactions queued to the card
 1615          *     with XPT_ABORT_CCB.
 1616          */
 1617         bioq_flush(&softc->bio_queue, NULL, ENXIO);
 1618         bioq_flush(&softc->delete_queue, NULL, ENXIO);
 1619 
 1620         /*
 1621          * Tell GEOM that we've gone away, we'll get a callback when it is
 1622          * done cleaning up its resources.
 1623          */
 1624         disk_gone(softc->disk);
 1625 }
 1626 
 1627 static void
 1628 dacleanup(struct cam_periph *periph)
 1629 {
 1630         struct da_softc *softc;
 1631 
 1632         softc = (struct da_softc *)periph->softc;
 1633 
 1634         cam_periph_unlock(periph);
 1635 
 1636         /*
 1637          * If we can't free the sysctl tree, oh well...
 1638          */
 1639         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
 1640             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
 1641                 xpt_print(periph->path, "can't remove sysctl context\n");
 1642         }
 1643 
 1644         callout_drain(&softc->mediapoll_c);
 1645         disk_destroy(softc->disk);
 1646         callout_drain(&softc->sendordered_c);
 1647         free(softc, M_DEVBUF);
 1648         cam_periph_lock(periph);
 1649 }
 1650 
 1651 static void
 1652 daasync(void *callback_arg, u_int32_t code,
 1653         struct cam_path *path, void *arg)
 1654 {
 1655         struct cam_periph *periph;
 1656         struct da_softc *softc;
 1657 
 1658         periph = (struct cam_periph *)callback_arg;
 1659         switch (code) {
 1660         case AC_FOUND_DEVICE:
 1661         {
 1662                 struct ccb_getdev *cgd;
 1663                 cam_status status;
 1664  
 1665                 cgd = (struct ccb_getdev *)arg;
 1666                 if (cgd == NULL)
 1667                         break;
 1668 
 1669                 if (cgd->protocol != PROTO_SCSI)
 1670                         break;
 1671                 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
 1672                         break;
 1673                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
 1674                     && SID_TYPE(&cgd->inq_data) != T_RBC
 1675                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
 1676                         break;
 1677 
 1678                 /*
 1679                  * Allocate a peripheral instance for
 1680                  * this device and start the probe
 1681                  * process.
 1682                  */
 1683                 status = cam_periph_alloc(daregister, daoninvalidate,
 1684                                           dacleanup, dastart,
 1685                                           "da", CAM_PERIPH_BIO,
 1686                                           path, daasync,
 1687                                           AC_FOUND_DEVICE, cgd);
 1688 
 1689                 if (status != CAM_REQ_CMP
 1690                  && status != CAM_REQ_INPROG)
 1691                         printf("daasync: Unable to attach to new device "
 1692                                 "due to status 0x%x\n", status);
 1693                 return;
 1694         }
 1695         case AC_ADVINFO_CHANGED:
 1696         {
 1697                 uintptr_t buftype;
 1698 
 1699                 buftype = (uintptr_t)arg;
 1700                 if (buftype == CDAI_TYPE_PHYS_PATH) {
 1701                         struct da_softc *softc;
 1702 
 1703                         softc = periph->softc;
 1704                         disk_attr_changed(softc->disk, "GEOM::physpath",
 1705                                           M_NOWAIT);
 1706                 }
 1707                 break;
 1708         }
 1709         case AC_UNIT_ATTENTION:
 1710         {
 1711                 union ccb *ccb;
 1712                 int error_code, sense_key, asc, ascq;
 1713 
 1714                 softc = (struct da_softc *)periph->softc;
 1715                 ccb = (union ccb *)arg;
 1716 
 1717                 /*
 1718                  * Handle all UNIT ATTENTIONs except our own,
 1719                  * as they will be handled by daerror().
 1720                  */
 1721                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
 1722                     scsi_extract_sense_ccb(ccb,
 1723                      &error_code, &sense_key, &asc, &ascq)) {
 1724                         if (asc == 0x2A && ascq == 0x09) {
 1725                                 xpt_print(ccb->ccb_h.path,
 1726                                     "Capacity data has changed\n");
 1727                                 softc->flags &= ~DA_FLAG_PROBED;
 1728                                 dareprobe(periph);
 1729                         } else if (asc == 0x28 && ascq == 0x00) {
 1730                                 softc->flags &= ~DA_FLAG_PROBED;
 1731                                 disk_media_changed(softc->disk, M_NOWAIT);
 1732                         } else if (asc == 0x3F && ascq == 0x03) {
 1733                                 xpt_print(ccb->ccb_h.path,
 1734                                     "INQUIRY data has changed\n");
 1735                                 softc->flags &= ~DA_FLAG_PROBED;
 1736                                 dareprobe(periph);
 1737                         }
 1738                 }
 1739                 cam_periph_async(periph, code, path, arg);
 1740                 break;
 1741         }
 1742         case AC_SCSI_AEN:
 1743                 softc = (struct da_softc *)periph->softc;
 1744                 if (!softc->tur) {
 1745                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
 1746                                 softc->tur = 1;
 1747                                 daschedule(periph);
 1748                         }
 1749                 }
 1750                 /* FALLTHROUGH */
 1751         case AC_SENT_BDR:
 1752         case AC_BUS_RESET:
 1753         {
 1754                 struct ccb_hdr *ccbh;
 1755 
 1756                 softc = (struct da_softc *)periph->softc;
 1757                 /*
 1758                  * Don't fail on the expected unit attention
 1759                  * that will occur.
 1760                  */
 1761                 softc->flags |= DA_FLAG_RETRY_UA;
 1762                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
 1763                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
 1764                 break;
 1765         }
 1766         default:
 1767                 break;
 1768         }
 1769         cam_periph_async(periph, code, path, arg);
 1770 }
 1771 
 1772 static void
 1773 dasysctlinit(void *context, int pending)
 1774 {
 1775         struct cam_periph *periph;
 1776         struct da_softc *softc;
 1777         char tmpstr[80], tmpstr2[80];
 1778         struct ccb_trans_settings cts;
 1779 
 1780         periph = (struct cam_periph *)context;
 1781         /*
 1782          * periph was held for us when this task was enqueued
 1783          */
 1784         if (periph->flags & CAM_PERIPH_INVALID) {
 1785                 cam_periph_release(periph);
 1786                 return;
 1787         }
 1788 
 1789         softc = (struct da_softc *)periph->softc;
 1790         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
 1791         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
 1792 
 1793         sysctl_ctx_init(&softc->sysctl_ctx);
 1794         softc->flags |= DA_FLAG_SCTX_INIT;
 1795         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
 1796                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
 1797                 CTLFLAG_RD, 0, tmpstr);
 1798         if (softc->sysctl_tree == NULL) {
 1799                 printf("dasysctlinit: unable to allocate sysctl tree\n");
 1800                 cam_periph_release(periph);
 1801                 return;
 1802         }
 1803 
 1804         /*
 1805          * Now register the sysctl handler, so the user can change the value on
 1806          * the fly.
 1807          */
 1808         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1809                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RWTUN,
 1810                 softc, 0, dadeletemethodsysctl, "A",
 1811                 "BIO_DELETE execution method");
 1812         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1813                 OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
 1814                 softc, 0, dadeletemaxsysctl, "Q",
 1815                 "Maximum BIO_DELETE size");
 1816         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1817                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
 1818                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
 1819                 "Minimum CDB size");
 1820         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 1821                 OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
 1822                 "Sort IO queue to try and optimise disk access patterns");
 1823 
 1824         SYSCTL_ADD_INT(&softc->sysctl_ctx,
 1825                        SYSCTL_CHILDREN(softc->sysctl_tree),
 1826                        OID_AUTO,
 1827                        "error_inject",
 1828                        CTLFLAG_RW,
 1829                        &softc->error_inject,
 1830                        0,
 1831                        "error_inject leaf");
 1832 
 1833 
 1834         /*
 1835          * Add some addressing info.
 1836          */
 1837         memset(&cts, 0, sizeof (cts));
 1838         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
 1839         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
 1840         cts.type = CTS_TYPE_CURRENT_SETTINGS;
 1841         cam_periph_lock(periph);
 1842         xpt_action((union ccb *)&cts);
 1843         cam_periph_unlock(periph);
 1844         if (cts.ccb_h.status != CAM_REQ_CMP) {
 1845                 cam_periph_release(periph);
 1846                 return;
 1847         }
 1848         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
 1849                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
 1850                 if (fc->valid & CTS_FC_VALID_WWPN) {
 1851                         softc->wwpn = fc->wwpn;
 1852                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
 1853                             SYSCTL_CHILDREN(softc->sysctl_tree),
 1854                             OID_AUTO, "wwpn", CTLFLAG_RD,
 1855                             &softc->wwpn, "World Wide Port Name");
 1856                 }
 1857         }
 1858         cam_periph_release(periph);
 1859 }
 1860 
 1861 static int
 1862 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
 1863 {
 1864         int error;
 1865         uint64_t value;
 1866         struct da_softc *softc;
 1867 
 1868         softc = (struct da_softc *)arg1;
 1869 
 1870         value = softc->disk->d_delmaxsize;
 1871         error = sysctl_handle_64(oidp, &value, 0, req);
 1872         if ((error != 0) || (req->newptr == NULL))
 1873                 return (error);
 1874 
 1875         /* only accept values smaller than the calculated value */
 1876         if (value > dadeletemaxsize(softc, softc->delete_method)) {
 1877                 return (EINVAL);
 1878         }
 1879         softc->disk->d_delmaxsize = value;
 1880 
 1881         return (0);
 1882 }
 1883 
 1884 static int
 1885 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
 1886 {
 1887         int error, value;
 1888 
 1889         value = *(int *)arg1;
 1890 
 1891         error = sysctl_handle_int(oidp, &value, 0, req);
 1892 
 1893         if ((error != 0)
 1894          || (req->newptr == NULL))
 1895                 return (error);
 1896 
 1897         /*
 1898          * Acceptable values here are 6, 10, 12 or 16.
 1899          */
 1900         if (value < 6)
 1901                 value = 6;
 1902         else if ((value > 6)
 1903               && (value <= 10))
 1904                 value = 10;
 1905         else if ((value > 10)
 1906               && (value <= 12))
 1907                 value = 12;
 1908         else if (value > 12)
 1909                 value = 16;
 1910 
 1911         *(int *)arg1 = value;
 1912 
 1913         return (0);
 1914 }
 1915 
 1916 static void
 1917 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
 1918 {
 1919 
 1920         softc->delete_method = delete_method;
 1921         softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
 1922         softc->delete_func = da_delete_functions[delete_method];
 1923 
 1924         if (softc->delete_method > DA_DELETE_DISABLE)
 1925                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
 1926         else
 1927                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
 1928 }
 1929 
 1930 static off_t
 1931 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
 1932 {
 1933         off_t sectors;
 1934 
 1935         switch(delete_method) {
 1936         case DA_DELETE_UNMAP:
 1937                 sectors = (off_t)softc->unmap_max_lba;
 1938                 break;
 1939         case DA_DELETE_ATA_TRIM:
 1940                 sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
 1941                 break;
 1942         case DA_DELETE_WS16:
 1943                 sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
 1944                 break;
 1945         case DA_DELETE_ZERO:
 1946         case DA_DELETE_WS10:
 1947                 sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
 1948                 break;
 1949         default:
 1950                 return 0;
 1951         }
 1952 
 1953         return (off_t)softc->params.secsize *
 1954             omin(sectors, softc->params.sectors);
 1955 }
 1956 
 1957 static void
 1958 daprobedone(struct cam_periph *periph, union ccb *ccb)
 1959 {
 1960         struct da_softc *softc;
 1961 
 1962         softc = (struct da_softc *)periph->softc;
 1963 
 1964         dadeletemethodchoose(softc, DA_DELETE_NONE);
 1965 
 1966         if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
 1967                 char buf[80];
 1968                 int i, sep;
 1969 
 1970                 snprintf(buf, sizeof(buf), "Delete methods: <");
 1971                 sep = 0;
 1972                 for (i = 0; i <= DA_DELETE_MAX; i++) {
 1973                         if ((softc->delete_available & (1 << i)) == 0 &&
 1974                             i != softc->delete_method)
 1975                                 continue;
 1976                         if (sep)
 1977                                 strlcat(buf, ",", sizeof(buf));
 1978                         strlcat(buf, da_delete_method_names[i],
 1979                             sizeof(buf));
 1980                         if (i == softc->delete_method)
 1981                                 strlcat(buf, "(*)", sizeof(buf));
 1982                         sep = 1;
 1983                 }
 1984                 strlcat(buf, ">", sizeof(buf));
 1985                 printf("%s%d: %s\n", periph->periph_name,
 1986                     periph->unit_number, buf);
 1987         }
 1988 
 1989         /*
 1990          * Since our peripheral may be invalidated by an error
 1991          * above or an external event, we must release our CCB
 1992          * before releasing the probe lock on the peripheral.
 1993          * The peripheral will only go away once the last lock
 1994          * is removed, and we need it around for the CCB release
 1995          * operation.
 1996          */
 1997         xpt_release_ccb(ccb);
 1998         softc->state = DA_STATE_NORMAL;
 1999         softc->flags |= DA_FLAG_PROBED;
 2000         daschedule(periph);
 2001         wakeup(&softc->disk->d_mediasize);
 2002         if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
 2003                 softc->flags |= DA_FLAG_ANNOUNCED;
 2004                 cam_periph_unhold(periph);
 2005         } else
 2006                 cam_periph_release_locked(periph);
 2007 }
 2008 
 2009 static void
 2010 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
 2011 {
 2012         int i, methods;
 2013 
 2014         /* If available, prefer the method requested by user. */
 2015         i = softc->delete_method_pref;
 2016         methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
 2017         if (methods & (1 << i)) {
 2018                 dadeletemethodset(softc, i);
 2019                 return;
 2020         }
 2021 
 2022         /* Use the pre-defined order to choose the best performing delete. */
 2023         for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
 2024                 if (i == DA_DELETE_ZERO)
 2025                         continue;
 2026                 if (softc->delete_available & (1 << i)) {
 2027                         dadeletemethodset(softc, i);
 2028                         return;
 2029                 }
 2030         }
 2031 
 2032         /* Fallback to default. */
 2033         dadeletemethodset(softc, default_method);
 2034 }
 2035 
 2036 static int
 2037 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
 2038 {
 2039         char buf[16];
 2040         const char *p;
 2041         struct da_softc *softc;
 2042         int i, error, methods, value;
 2043 
 2044         softc = (struct da_softc *)arg1;
 2045 
 2046         value = softc->delete_method;
 2047         if (value < 0 || value > DA_DELETE_MAX)
 2048                 p = "UNKNOWN";
 2049         else
 2050                 p = da_delete_method_names[value];
 2051         strncpy(buf, p, sizeof(buf));
 2052         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
 2053         if (error != 0 || req->newptr == NULL)
 2054                 return (error);
 2055         methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
 2056         for (i = 0; i <= DA_DELETE_MAX; i++) {
 2057                 if (strcmp(buf, da_delete_method_names[i]) == 0)
 2058                         break;
 2059         }
 2060         if (i > DA_DELETE_MAX)
 2061                 return (EINVAL);
 2062         softc->delete_method_pref = i;
 2063         dadeletemethodchoose(softc, DA_DELETE_NONE);
 2064         return (0);
 2065 }
 2066 
 2067 static cam_status
 2068 daregister(struct cam_periph *periph, void *arg)
 2069 {
 2070         struct da_softc *softc;
 2071         struct ccb_pathinq cpi;
 2072         struct ccb_getdev *cgd;
 2073         char tmpstr[80];
 2074         caddr_t match;
 2075 
 2076         cgd = (struct ccb_getdev *)arg;
 2077         if (cgd == NULL) {
 2078                 printf("daregister: no getdev CCB, can't register device\n");
 2079                 return(CAM_REQ_CMP_ERR);
 2080         }
 2081 
 2082         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
 2083             M_NOWAIT|M_ZERO);
 2084 
 2085         if (softc == NULL) {
 2086                 printf("daregister: Unable to probe new device. "
 2087                        "Unable to allocate softc\n");                           
 2088                 return(CAM_REQ_CMP_ERR);
 2089         }
 2090 
 2091         LIST_INIT(&softc->pending_ccbs);
 2092         softc->state = DA_STATE_PROBE_RC;
 2093         bioq_init(&softc->bio_queue);
 2094         bioq_init(&softc->delete_queue);
 2095         bioq_init(&softc->delete_run_queue);
 2096         if (SID_IS_REMOVABLE(&cgd->inq_data))
 2097                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
 2098         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
 2099         softc->unmap_max_lba = UNMAP_RANGE_MAX;
 2100         softc->ws_max_blks = WS16_MAX_BLKS;
 2101         softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
 2102         softc->sort_io_queue = -1;
 2103 
 2104         periph->softc = softc;
 2105 
 2106         /*
 2107          * See if this device has any quirks.
 2108          */
 2109         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
 2110                                (caddr_t)da_quirk_table,
 2111                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
 2112                                sizeof(*da_quirk_table), scsi_inquiry_match);
 2113 
 2114         if (match != NULL)
 2115                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
 2116         else
 2117                 softc->quirks = DA_Q_NONE;
 2118 
 2119         /* Check if the SIM does not want 6 byte commands */
 2120         bzero(&cpi, sizeof(cpi));
 2121         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 2122         cpi.ccb_h.func_code = XPT_PATH_INQ;
 2123         xpt_action((union ccb *)&cpi);
 2124         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
 2125                 softc->quirks |= DA_Q_NO_6_BYTE;
 2126 
 2127         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
 2128 
 2129         /*
 2130          * Take an exclusive refcount on the periph while dastart is called
 2131          * to finish the probe.  The reference will be dropped in dadone at
 2132          * the end of probe.
 2133          */
 2134         (void)cam_periph_hold(periph, PRIBIO);
 2135 
 2136         /*
 2137          * Schedule a periodic event to occasionally send an
 2138          * ordered tag to a device.
 2139          */
 2140         callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
 2141         callout_reset(&softc->sendordered_c,
 2142             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
 2143             dasendorderedtag, softc);
 2144 
 2145         cam_periph_unlock(periph);
 2146         /*
 2147          * RBC devices don't have to support READ(6), only READ(10).
 2148          */
 2149         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
 2150                 softc->minimum_cmd_size = 10;
 2151         else
 2152                 softc->minimum_cmd_size = 6;
 2153 
 2154         /*
 2155          * Load the user's default, if any.
 2156          */
 2157         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
 2158                  periph->unit_number);
 2159         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
 2160 
 2161         /*
 2162          * 6, 10, 12 and 16 are the currently permissible values.
 2163          */
 2164         if (softc->minimum_cmd_size < 6)
 2165                 softc->minimum_cmd_size = 6;
 2166         else if ((softc->minimum_cmd_size > 6)
 2167               && (softc->minimum_cmd_size <= 10))
 2168                 softc->minimum_cmd_size = 10;
 2169         else if ((softc->minimum_cmd_size > 10)
 2170               && (softc->minimum_cmd_size <= 12))
 2171                 softc->minimum_cmd_size = 12;
 2172         else if (softc->minimum_cmd_size > 12)
 2173                 softc->minimum_cmd_size = 16;
 2174 
 2175         /* Predict whether device may support READ CAPACITY(16). */
 2176         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
 2177             (softc->quirks & DA_Q_NO_RC16) == 0) {
 2178                 softc->flags |= DA_FLAG_CAN_RC16;
 2179                 softc->state = DA_STATE_PROBE_RC16;
 2180         }
 2181 
 2182         /*
 2183          * Register this media as a disk.
 2184          */
 2185         softc->disk = disk_alloc();
 2186         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
 2187                           periph->unit_number, 0,
 2188                           DEVSTAT_BS_UNAVAILABLE,
 2189                           SID_TYPE(&cgd->inq_data) |
 2190                           XPORT_DEVSTAT_TYPE(cpi.transport),
 2191                           DEVSTAT_PRIORITY_DISK);
 2192         softc->disk->d_open = daopen;
 2193         softc->disk->d_close = daclose;
 2194         softc->disk->d_strategy = dastrategy;
 2195         softc->disk->d_dump = dadump;
 2196         softc->disk->d_getattr = dagetattr;
 2197         softc->disk->d_gone = dadiskgonecb;
 2198         softc->disk->d_name = "da";
 2199         softc->disk->d_drv1 = periph;
 2200         if (cpi.maxio == 0)
 2201                 softc->maxio = DFLTPHYS;        /* traditional default */
 2202         else if (cpi.maxio > MAXPHYS)
 2203                 softc->maxio = MAXPHYS;         /* for safety */
 2204         else
 2205                 softc->maxio = cpi.maxio;
 2206         softc->disk->d_maxsize = softc->maxio;
 2207         softc->disk->d_unit = periph->unit_number;
 2208         softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
 2209         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
 2210                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
 2211         if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
 2212                 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
 2213         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
 2214             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
 2215         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
 2216         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
 2217             cgd->inq_data.product, sizeof(cgd->inq_data.product),
 2218             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
 2219         softc->disk->d_hba_vendor = cpi.hba_vendor;
 2220         softc->disk->d_hba_device = cpi.hba_device;
 2221         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
 2222         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
 2223 
 2224         /*
 2225          * Acquire a reference to the periph before we register with GEOM.
 2226          * We'll release this reference once GEOM calls us back (via
 2227          * dadiskgonecb()) telling us that our provider has been freed.
 2228          */
 2229         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 2230                 xpt_print(periph->path, "%s: lost periph during "
 2231                           "registration!\n", __func__);
 2232                 cam_periph_lock(periph);
 2233                 return (CAM_REQ_CMP_ERR);
 2234         }
 2235 
 2236         disk_create(softc->disk, DISK_VERSION);
 2237         cam_periph_lock(periph);
 2238 
 2239         /*
 2240          * Add async callbacks for events of interest.
 2241          * I don't bother checking if this fails as,
 2242          * in most cases, the system will function just
 2243          * fine without them and the only alternative
 2244          * would be to not attach the device on failure.
 2245          */
 2246         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
 2247             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
 2248             daasync, periph, periph->path);
 2249 
 2250         /*
 2251          * Emit an attribute changed notification just in case 
 2252          * physical path information arrived before our async
 2253          * event handler was registered, but after anyone attaching
 2254          * to our disk device polled it.
 2255          */
 2256         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
 2257 
 2258         /*
 2259          * Schedule a periodic media polling events.
 2260          */
 2261         callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
 2262         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
 2263             (cgd->inq_flags & SID_AEN) == 0 &&
 2264             da_poll_period != 0)
 2265                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
 2266                     damediapoll, periph);
 2267 
 2268         xpt_schedule(periph, CAM_PRIORITY_DEV);
 2269 
 2270         return(CAM_REQ_CMP);
 2271 }
 2272 
 2273 static void
 2274 dastart(struct cam_periph *periph, union ccb *start_ccb)
 2275 {
 2276         struct da_softc *softc;
 2277 
 2278         softc = (struct da_softc *)periph->softc;
 2279 
 2280         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
 2281 
 2282 skipstate:
 2283         switch (softc->state) {
 2284         case DA_STATE_NORMAL:
 2285         {
 2286                 struct bio *bp;
 2287                 uint8_t tag_code;
 2288 
 2289                 /* Run BIO_DELETE if not running yet. */
 2290                 if (!softc->delete_running &&
 2291                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
 2292                         if (softc->delete_func != NULL) {
 2293                                 softc->delete_func(periph, start_ccb, bp);
 2294                                 goto out;
 2295                         } else {
 2296                                 bioq_flush(&softc->delete_queue, NULL, 0);
 2297                                 /* FALLTHROUGH */
 2298                         }
 2299                 }
 2300 
 2301                 /* Run regular command. */
 2302                 bp = bioq_takefirst(&softc->bio_queue);
 2303                 if (bp == NULL) {
 2304                         if (softc->tur) {
 2305                                 softc->tur = 0;
 2306                                 scsi_test_unit_ready(&start_ccb->csio,
 2307                                      /*retries*/ da_retry_count,
 2308                                      dadone,
 2309                                      MSG_SIMPLE_Q_TAG,
 2310                                      SSD_FULL_SIZE,
 2311                                      da_default_timeout * 1000);
 2312                                 start_ccb->ccb_h.ccb_bp = NULL;
 2313                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
 2314                                 xpt_action(start_ccb);
 2315                         } else
 2316                                 xpt_release_ccb(start_ccb);
 2317                         break;
 2318                 }
 2319                 if (softc->tur) {
 2320                         softc->tur = 0;
 2321                         cam_periph_release_locked(periph);
 2322                 }
 2323 
 2324                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
 2325                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
 2326                         softc->flags &= ~DA_FLAG_NEED_OTAG;
 2327                         softc->flags |= DA_FLAG_WAS_OTAG;
 2328                         tag_code = MSG_ORDERED_Q_TAG;
 2329                 } else {
 2330                         tag_code = MSG_SIMPLE_Q_TAG;
 2331                 }
 2332 
 2333                 switch (bp->bio_cmd) {
 2334                 case BIO_WRITE:
 2335                 case BIO_READ:
 2336                 {
 2337                         void *data_ptr;
 2338                         int rw_op;
 2339 
 2340                         if (bp->bio_cmd == BIO_WRITE) {
 2341                                 softc->flags |= DA_FLAG_DIRTY;
 2342                                 rw_op = SCSI_RW_WRITE;
 2343                         } else {
 2344                                 rw_op = SCSI_RW_READ;
 2345                         }
 2346 
 2347                         data_ptr = bp->bio_data;
 2348                         if ((bp->bio_flags & (BIO_UNMAPPED|BIO_VLIST)) != 0) {
 2349                                 rw_op |= SCSI_RW_BIO;
 2350                                 data_ptr = bp;
 2351                         }
 2352 
 2353                         scsi_read_write(&start_ccb->csio,
 2354                                         /*retries*/da_retry_count,
 2355                                         /*cbfcnp*/dadone,
 2356                                         /*tag_action*/tag_code,
 2357                                         rw_op,
 2358                                         /*byte2*/0,
 2359                                         softc->minimum_cmd_size,
 2360                                         /*lba*/bp->bio_pblkno,
 2361                                         /*block_count*/bp->bio_bcount /
 2362                                         softc->params.secsize,
 2363                                         data_ptr,
 2364                                         /*dxfer_len*/ bp->bio_bcount,
 2365                                         /*sense_len*/SSD_FULL_SIZE,
 2366                                         da_default_timeout * 1000);
 2367                         break;
 2368                 }
 2369                 case BIO_FLUSH:
 2370                         /*
 2371                          * BIO_FLUSH doesn't currently communicate
 2372                          * range data, so we synchronize the cache
 2373                          * over the whole disk.  We also force
 2374                          * ordered tag semantics the flush applies
 2375                          * to all previously queued I/O.
 2376                          */
 2377                         scsi_synchronize_cache(&start_ccb->csio,
 2378                                                /*retries*/1,
 2379                                                /*cbfcnp*/dadone,
 2380                                                MSG_ORDERED_Q_TAG,
 2381                                                /*begin_lba*/0,
 2382                                                /*lb_count*/0,
 2383                                                SSD_FULL_SIZE,
 2384                                                da_default_timeout*1000);
 2385                         break;
 2386                 }
 2387                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
 2388                 start_ccb->ccb_h.flags |= CAM_UNLOCKED;
 2389 
 2390 out:
 2391                 LIST_INSERT_HEAD(&softc->pending_ccbs,
 2392                                  &start_ccb->ccb_h, periph_links.le);
 2393 
 2394                 /* We expect a unit attention from this device */
 2395                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
 2396                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
 2397                         softc->flags &= ~DA_FLAG_RETRY_UA;
 2398                 }
 2399 
 2400                 start_ccb->ccb_h.ccb_bp = bp;
 2401                 softc->refcount++;
 2402                 cam_periph_unlock(periph);
 2403                 xpt_action(start_ccb);
 2404                 cam_periph_lock(periph);
 2405                 softc->refcount--;
 2406 
 2407                 /* May have more work to do, so ensure we stay scheduled */
 2408                 daschedule(periph);
 2409                 break;
 2410         }
 2411         case DA_STATE_PROBE_RC:
 2412         {
 2413                 struct scsi_read_capacity_data *rcap;
 2414 
 2415                 rcap = (struct scsi_read_capacity_data *)
 2416                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
 2417                 if (rcap == NULL) {
 2418                         printf("dastart: Couldn't malloc read_capacity data\n");
 2419                         /* da_free_periph??? */
 2420                         break;
 2421                 }
 2422                 scsi_read_capacity(&start_ccb->csio,
 2423                                    /*retries*/da_retry_count,
 2424                                    dadone,
 2425                                    MSG_SIMPLE_Q_TAG,
 2426                                    rcap,
 2427                                    SSD_FULL_SIZE,
 2428                                    /*timeout*/5000);
 2429                 start_ccb->ccb_h.ccb_bp = NULL;
 2430                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
 2431                 xpt_action(start_ccb);
 2432                 break;
 2433         }
 2434         case DA_STATE_PROBE_RC16:
 2435         {
 2436                 struct scsi_read_capacity_data_long *rcaplong;
 2437 
 2438                 rcaplong = (struct scsi_read_capacity_data_long *)
 2439                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
 2440                 if (rcaplong == NULL) {
 2441                         printf("dastart: Couldn't malloc read_capacity data\n");
 2442                         /* da_free_periph??? */
 2443                         break;
 2444                 }
 2445                 scsi_read_capacity_16(&start_ccb->csio,
 2446                                       /*retries*/ da_retry_count,
 2447                                       /*cbfcnp*/ dadone,
 2448                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
 2449                                       /*lba*/ 0,
 2450                                       /*reladr*/ 0,
 2451                                       /*pmi*/ 0,
 2452                                       /*rcap_buf*/ (uint8_t *)rcaplong,
 2453                                       /*rcap_buf_len*/ sizeof(*rcaplong),
 2454                                       /*sense_len*/ SSD_FULL_SIZE,
 2455                                       /*timeout*/ da_default_timeout * 1000);
 2456                 start_ccb->ccb_h.ccb_bp = NULL;
 2457                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
 2458                 xpt_action(start_ccb);
 2459                 break;
 2460         }
 2461         case DA_STATE_PROBE_LBP:
 2462         {
 2463                 struct scsi_vpd_logical_block_prov *lbp;
 2464 
 2465                 if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
 2466                         /*
 2467                          * If we get here we don't support any SBC-3 delete
 2468                          * methods with UNMAP as the Logical Block Provisioning
 2469                          * VPD page support is required for devices which
 2470                          * support it according to T10/1799-D Revision 31
 2471                          * however older revisions of the spec don't mandate
 2472                          * this so we currently don't remove these methods
 2473                          * from the available set.
 2474                          */
 2475                         softc->state = DA_STATE_PROBE_BLK_LIMITS;
 2476                         goto skipstate;
 2477                 }
 2478 
 2479                 lbp = (struct scsi_vpd_logical_block_prov *)
 2480                         malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
 2481 
 2482                 if (lbp == NULL) {
 2483                         printf("dastart: Couldn't malloc lbp data\n");
 2484                         /* da_free_periph??? */
 2485                         break;
 2486                 }
 2487 
 2488                 scsi_inquiry(&start_ccb->csio,
 2489                              /*retries*/da_retry_count,
 2490                              /*cbfcnp*/dadone,
 2491                              /*tag_action*/MSG_SIMPLE_Q_TAG,
 2492                              /*inq_buf*/(u_int8_t *)lbp,
 2493                              /*inq_len*/sizeof(*lbp),
 2494                              /*evpd*/TRUE,
 2495                              /*page_code*/SVPD_LBP,
 2496                              /*sense_len*/SSD_MIN_SIZE,
 2497                              /*timeout*/da_default_timeout * 1000);
 2498                 start_ccb->ccb_h.ccb_bp = NULL;
 2499                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
 2500                 xpt_action(start_ccb);
 2501                 break;
 2502         }
 2503         case DA_STATE_PROBE_BLK_LIMITS:
 2504         {
 2505                 struct scsi_vpd_block_limits *block_limits;
 2506 
 2507                 if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
 2508                         /* Not supported skip to next probe */
 2509                         softc->state = DA_STATE_PROBE_BDC;
 2510                         goto skipstate;
 2511                 }
 2512 
 2513                 block_limits = (struct scsi_vpd_block_limits *)
 2514                         malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
 2515 
 2516                 if (block_limits == NULL) {
 2517                         printf("dastart: Couldn't malloc block_limits data\n");
 2518                         /* da_free_periph??? */
 2519                         break;
 2520                 }
 2521 
 2522                 scsi_inquiry(&start_ccb->csio,
 2523                              /*retries*/da_retry_count,
 2524                              /*cbfcnp*/dadone,
 2525                              /*tag_action*/MSG_SIMPLE_Q_TAG,
 2526                              /*inq_buf*/(u_int8_t *)block_limits,
 2527                              /*inq_len*/sizeof(*block_limits),
 2528                              /*evpd*/TRUE,
 2529                              /*page_code*/SVPD_BLOCK_LIMITS,
 2530                              /*sense_len*/SSD_MIN_SIZE,
 2531                              /*timeout*/da_default_timeout * 1000);
 2532                 start_ccb->ccb_h.ccb_bp = NULL;
 2533                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
 2534                 xpt_action(start_ccb);
 2535                 break;
 2536         }
 2537         case DA_STATE_PROBE_BDC:
 2538         {
 2539                 struct scsi_vpd_block_characteristics *bdc;
 2540 
 2541                 if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
 2542                         softc->state = DA_STATE_PROBE_ATA;
 2543                         goto skipstate;
 2544                 }
 2545 
 2546                 bdc = (struct scsi_vpd_block_characteristics *)
 2547                         malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
 2548 
 2549                 if (bdc == NULL) {
 2550                         printf("dastart: Couldn't malloc bdc data\n");
 2551                         /* da_free_periph??? */
 2552                         break;
 2553                 }
 2554 
 2555                 scsi_inquiry(&start_ccb->csio,
 2556                              /*retries*/da_retry_count,
 2557                              /*cbfcnp*/dadone,
 2558                              /*tag_action*/MSG_SIMPLE_Q_TAG,
 2559                              /*inq_buf*/(u_int8_t *)bdc,
 2560                              /*inq_len*/sizeof(*bdc),
 2561                              /*evpd*/TRUE,
 2562                              /*page_code*/SVPD_BDC,
 2563                              /*sense_len*/SSD_MIN_SIZE,
 2564                              /*timeout*/da_default_timeout * 1000);
 2565                 start_ccb->ccb_h.ccb_bp = NULL;
 2566                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
 2567                 xpt_action(start_ccb);
 2568                 break;
 2569         }
 2570         case DA_STATE_PROBE_ATA:
 2571         {
 2572                 struct ata_params *ata_params;
 2573 
 2574                 if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
 2575                         daprobedone(periph, start_ccb);
 2576                         break;
 2577                 }
 2578 
 2579                 ata_params = (struct ata_params*)
 2580                         malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
 2581 
 2582                 if (ata_params == NULL) {
 2583                         printf("dastart: Couldn't malloc ata_params data\n");
 2584                         /* da_free_periph??? */
 2585                         break;
 2586                 }
 2587 
 2588                 scsi_ata_identify(&start_ccb->csio,
 2589                                   /*retries*/da_retry_count,
 2590                                   /*cbfcnp*/dadone,
 2591                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
 2592                                   /*data_ptr*/(u_int8_t *)ata_params,
 2593                                   /*dxfer_len*/sizeof(*ata_params),
 2594                                   /*sense_len*/SSD_FULL_SIZE,
 2595                                   /*timeout*/da_default_timeout * 1000);
 2596                 start_ccb->ccb_h.ccb_bp = NULL;
 2597                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
 2598                 xpt_action(start_ccb);
 2599                 break;
 2600         }
 2601         }
 2602 }
 2603 
 2604 /*
 2605  * In each of the methods below, while its the caller's
 2606  * responsibility to ensure the request will fit into a
 2607  * single device request, we might have changed the delete
 2608  * method due to the device incorrectly advertising either
 2609  * its supported methods or limits.
 2610  * 
 2611  * To prevent this causing further issues we validate the
 2612  * against the methods limits, and warn which would
 2613  * otherwise be unnecessary.
 2614  */
 2615 static void
 2616 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
 2617 {
 2618         struct da_softc *softc = (struct da_softc *)periph->softc;;
 2619         struct bio *bp1;
 2620         uint8_t *buf = softc->unmap_buf;
 2621         uint64_t lba, lastlba = (uint64_t)-1;
 2622         uint64_t totalcount = 0;
 2623         uint64_t count;
 2624         uint32_t lastcount = 0, c;
 2625         uint32_t off, ranges = 0;
 2626 
 2627         /*
 2628          * Currently this doesn't take the UNMAP
 2629          * Granularity and Granularity Alignment
 2630          * fields into account.
 2631          *
 2632          * This could result in both unoptimal unmap
 2633          * requests as as well as UNMAP calls unmapping
 2634          * fewer LBA's than requested.
 2635          */
 2636 
 2637         softc->delete_running = 1;
 2638         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
 2639         bp1 = bp;
 2640         do {
 2641                 bioq_remove(&softc->delete_queue, bp1);
 2642                 if (bp1 != bp)
 2643                         bioq_insert_tail(&softc->delete_run_queue, bp1);
 2644                 lba = bp1->bio_pblkno;
 2645                 count = bp1->bio_bcount / softc->params.secsize;
 2646 
 2647                 /* Try to extend the previous range. */
 2648                 if (lba == lastlba) {
 2649                         c = omin(count, UNMAP_RANGE_MAX - lastcount);
 2650                         lastcount += c;
 2651                         off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
 2652                               UNMAP_HEAD_SIZE;
 2653                         scsi_ulto4b(lastcount, &buf[off + 8]);
 2654                         count -= c;
 2655                         lba +=c;
 2656                         totalcount += c;
 2657                 }
 2658 
 2659                 while (count > 0) {
 2660                         c = omin(count, UNMAP_RANGE_MAX);
 2661                         if (totalcount + c > softc->unmap_max_lba ||
 2662                             ranges >= softc->unmap_max_ranges) {
 2663                                 xpt_print(periph->path,
 2664                                     "%s issuing short delete %ld > %ld"
 2665                                     "|| %d >= %d",
 2666                                     da_delete_method_desc[softc->delete_method],
 2667                                     totalcount + c, softc->unmap_max_lba,
 2668                                     ranges, softc->unmap_max_ranges);
 2669                                 break;
 2670                         }
 2671                         off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
 2672                         scsi_u64to8b(lba, &buf[off + 0]);
 2673                         scsi_ulto4b(c, &buf[off + 8]);
 2674                         lba += c;
 2675                         totalcount += c;
 2676                         ranges++;
 2677                         count -= c;
 2678                         lastcount = c;
 2679                 }
 2680                 lastlba = lba;
 2681                 bp1 = bioq_first(&softc->delete_queue);
 2682                 if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
 2683                     totalcount + bp1->bio_bcount /
 2684                     softc->params.secsize > softc->unmap_max_lba)
 2685                         break;
 2686         } while (1);
 2687         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
 2688         scsi_ulto2b(ranges * 16, &buf[2]);
 2689 
 2690         scsi_unmap(&ccb->csio,
 2691                    /*retries*/da_retry_count,
 2692                    /*cbfcnp*/dadone,
 2693                    /*tag_action*/MSG_SIMPLE_Q_TAG,
 2694                    /*byte2*/0,
 2695                    /*data_ptr*/ buf,
 2696                    /*dxfer_len*/ ranges * 16 + 8,
 2697                    /*sense_len*/SSD_FULL_SIZE,
 2698                    da_default_timeout * 1000);
 2699         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
 2700         ccb->ccb_h.flags |= CAM_UNLOCKED;
 2701 }
 2702 
 2703 static void
 2704 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
 2705 {
 2706         struct da_softc *softc = (struct da_softc *)periph->softc;
 2707         struct bio *bp1;
 2708         uint8_t *buf = softc->unmap_buf;
 2709         uint64_t lastlba = (uint64_t)-1;
 2710         uint64_t count;
 2711         uint64_t lba;
 2712         uint32_t lastcount = 0, c, requestcount;
 2713         int ranges = 0, off, block_count;
 2714 
 2715         softc->delete_running = 1;
 2716         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
 2717         bp1 = bp;
 2718         do {
 2719                 bioq_remove(&softc->delete_queue, bp1);
 2720                 if (bp1 != bp)
 2721                         bioq_insert_tail(&softc->delete_run_queue, bp1);
 2722                 lba = bp1->bio_pblkno;
 2723                 count = bp1->bio_bcount / softc->params.secsize;
 2724                 requestcount = count;
 2725 
 2726                 /* Try to extend the previous range. */
 2727                 if (lba == lastlba) {
 2728                         c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
 2729                         lastcount += c;
 2730                         off = (ranges - 1) * 8;
 2731                         buf[off + 6] = lastcount & 0xff;
 2732                         buf[off + 7] = (lastcount >> 8) & 0xff;
 2733                         count -= c;
 2734                         lba += c;
 2735                 }
 2736 
 2737                 while (count > 0) {
 2738                         c = omin(count, ATA_DSM_RANGE_MAX);
 2739                         off = ranges * 8;
 2740 
 2741                         buf[off + 0] = lba & 0xff;
 2742                         buf[off + 1] = (lba >> 8) & 0xff;
 2743                         buf[off + 2] = (lba >> 16) & 0xff;
 2744                         buf[off + 3] = (lba >> 24) & 0xff;
 2745                         buf[off + 4] = (lba >> 32) & 0xff;
 2746                         buf[off + 5] = (lba >> 40) & 0xff;
 2747                         buf[off + 6] = c & 0xff;
 2748                         buf[off + 7] = (c >> 8) & 0xff;
 2749                         lba += c;
 2750                         ranges++;
 2751                         count -= c;
 2752                         lastcount = c;
 2753                         if (count != 0 && ranges == softc->trim_max_ranges) {
 2754                                 xpt_print(periph->path,
 2755                                     "%s issuing short delete %ld > %ld\n",
 2756                                     da_delete_method_desc[softc->delete_method],
 2757                                     requestcount,
 2758                                     (softc->trim_max_ranges - ranges) *
 2759                                     ATA_DSM_RANGE_MAX);
 2760                                 break;
 2761                         }
 2762                 }
 2763                 lastlba = lba;
 2764                 bp1 = bioq_first(&softc->delete_queue);
 2765                 if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
 2766                     (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
 2767                         break;
 2768         } while (1);
 2769 
 2770         block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
 2771         scsi_ata_trim(&ccb->csio,
 2772                       /*retries*/da_retry_count,
 2773                       /*cbfcnp*/dadone,
 2774                       /*tag_action*/MSG_SIMPLE_Q_TAG,
 2775                       block_count,
 2776                       /*data_ptr*/buf,
 2777                       /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
 2778                       /*sense_len*/SSD_FULL_SIZE,
 2779                       da_default_timeout * 1000);
 2780         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
 2781         ccb->ccb_h.flags |= CAM_UNLOCKED;
 2782 }
 2783 
 2784 /*
 2785  * We calculate ws_max_blks here based off d_delmaxsize instead
 2786  * of using softc->ws_max_blks as it is absolute max for the
 2787  * device not the protocol max which may well be lower.
 2788  */
 2789 static void
 2790 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
 2791 {
 2792         struct da_softc *softc;
 2793         struct bio *bp1;
 2794         uint64_t ws_max_blks;
 2795         uint64_t lba;
 2796         uint64_t count; /* forward compat with WS32 */
 2797 
 2798         softc = (struct da_softc *)periph->softc;
 2799         ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
 2800         softc->delete_running = 1;
 2801         lba = bp->bio_pblkno;
 2802         count = 0;
 2803         bp1 = bp;
 2804         do {
 2805                 bioq_remove(&softc->delete_queue, bp1);
 2806                 if (bp1 != bp)
 2807                         bioq_insert_tail(&softc->delete_run_queue, bp1);
 2808                 count += bp1->bio_bcount / softc->params.secsize;
 2809                 if (count > ws_max_blks) {
 2810                         xpt_print(periph->path,
 2811                             "%s issuing short delete %ld > %ld\n",
 2812                             da_delete_method_desc[softc->delete_method],
 2813                             count, ws_max_blks);
 2814                         count = omin(count, ws_max_blks);
 2815                         break;
 2816                 }
 2817                 bp1 = bioq_first(&softc->delete_queue);
 2818                 if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
 2819                     count + bp1->bio_bcount /
 2820                     softc->params.secsize > ws_max_blks)
 2821                         break;
 2822         } while (1);
 2823 
 2824         scsi_write_same(&ccb->csio,
 2825                         /*retries*/da_retry_count,
 2826                         /*cbfcnp*/dadone,
 2827                         /*tag_action*/MSG_SIMPLE_Q_TAG,
 2828                         /*byte2*/softc->delete_method ==
 2829                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
 2830                         softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
 2831                         /*lba*/lba,
 2832                         /*block_count*/count,
 2833                         /*data_ptr*/ __DECONST(void *, zero_region),
 2834                         /*dxfer_len*/ softc->params.secsize,
 2835                         /*sense_len*/SSD_FULL_SIZE,
 2836                         da_default_timeout * 1000);
 2837         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
 2838         ccb->ccb_h.flags |= CAM_UNLOCKED;
 2839 }
 2840 
 2841 static int
 2842 cmd6workaround(union ccb *ccb)
 2843 {
 2844         struct scsi_rw_6 cmd6;
 2845         struct scsi_rw_10 *cmd10;
 2846         struct da_softc *softc;
 2847         u_int8_t *cdb;
 2848         struct bio *bp;
 2849         int frozen;
 2850 
 2851         cdb = ccb->csio.cdb_io.cdb_bytes;
 2852         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
 2853 
 2854         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
 2855                 da_delete_methods old_method = softc->delete_method;
 2856 
 2857                 /*
 2858                  * Typically there are two reasons for failure here
 2859                  * 1. Delete method was detected as supported but isn't
 2860                  * 2. Delete failed due to invalid params e.g. too big
 2861                  *
 2862                  * While we will attempt to choose an alternative delete method
 2863                  * this may result in short deletes if the existing delete
 2864                  * requests from geom are big for the new method choosen.
 2865                  *
 2866                  * This method assumes that the error which triggered this
 2867                  * will not retry the io otherwise a panic will occur
 2868                  */
 2869                 dadeleteflag(softc, old_method, 0);
 2870                 dadeletemethodchoose(softc, DA_DELETE_DISABLE);
 2871                 if (softc->delete_method == DA_DELETE_DISABLE)
 2872                         xpt_print(ccb->ccb_h.path,
 2873                                   "%s failed, disabling BIO_DELETE\n",
 2874                                   da_delete_method_desc[old_method]);
 2875                 else
 2876                         xpt_print(ccb->ccb_h.path,
 2877                                   "%s failed, switching to %s BIO_DELETE\n",
 2878                                   da_delete_method_desc[old_method],
 2879                                   da_delete_method_desc[softc->delete_method]);
 2880 
 2881                 while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
 2882                         bioq_disksort(&softc->delete_queue, bp);
 2883                 bioq_disksort(&softc->delete_queue,
 2884                     (struct bio *)ccb->ccb_h.ccb_bp);
 2885                 ccb->ccb_h.ccb_bp = NULL;
 2886                 return (0);
 2887         }
 2888 
 2889         /* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
 2890         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
 2891             (*cdb == PREVENT_ALLOW) &&
 2892             (softc->quirks & DA_Q_NO_PREVENT) == 0) {
 2893                 if (bootverbose)
 2894                         xpt_print(ccb->ccb_h.path,
 2895                             "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
 2896                 softc->quirks |= DA_Q_NO_PREVENT;
 2897                 return (0);
 2898         }
 2899 
 2900         /* Detect unsupported SYNCHRONIZE CACHE(10). */
 2901         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
 2902             (*cdb == SYNCHRONIZE_CACHE) &&
 2903             (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
 2904                 if (bootverbose)
 2905                         xpt_print(ccb->ccb_h.path,
 2906                             "SYNCHRONIZE CACHE(10) not supported.\n");
 2907                 softc->quirks |= DA_Q_NO_SYNC_CACHE;
 2908                 softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
 2909                 return (0);
 2910         }
 2911 
 2912         /* Translation only possible if CDB is an array and cmd is R/W6 */
 2913         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
 2914             (*cdb != READ_6 && *cdb != WRITE_6))
 2915                 return 0;
 2916 
 2917         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
 2918             "increasing minimum_cmd_size to 10.\n");
 2919         softc->minimum_cmd_size = 10;
 2920 
 2921         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
 2922         cmd10 = (struct scsi_rw_10 *)cdb;
 2923         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
 2924         cmd10->byte2 = 0;
 2925         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
 2926         cmd10->reserved = 0;
 2927         scsi_ulto2b(cmd6.length, cmd10->length);
 2928         cmd10->control = cmd6.control;
 2929         ccb->csio.cdb_len = sizeof(*cmd10);
 2930 
 2931         /* Requeue request, unfreezing queue if necessary */
 2932         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
 2933         ccb->ccb_h.status = CAM_REQUEUE_REQ;
 2934         xpt_action(ccb);
 2935         if (frozen) {
 2936                 cam_release_devq(ccb->ccb_h.path,
 2937                                  /*relsim_flags*/0,
 2938                                  /*reduction*/0,
 2939                                  /*timeout*/0,
 2940                                  /*getcount_only*/0);
 2941         }
 2942         return (ERESTART);
 2943 }
 2944 
 2945 static void
 2946 dadone(struct cam_periph *periph, union ccb *done_ccb)
 2947 {
 2948         struct da_softc *softc;
 2949         struct ccb_scsiio *csio;
 2950         u_int32_t  priority;
 2951         da_ccb_state state;
 2952 
 2953         softc = (struct da_softc *)periph->softc;
 2954         priority = done_ccb->ccb_h.pinfo.priority;
 2955 
 2956         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
 2957 
 2958         csio = &done_ccb->csio;
 2959         state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
 2960         switch (state) {
 2961         case DA_CCB_BUFFER_IO:
 2962         case DA_CCB_DELETE:
 2963         {
 2964                 struct bio *bp, *bp1;
 2965 
 2966                 cam_periph_lock(periph);
 2967                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
 2968                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 2969                         int error;
 2970                         int sf;
 2971 
 2972                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
 2973                                 sf = SF_RETRY_UA;
 2974                         else
 2975                                 sf = 0;
 2976 
 2977                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
 2978                         if (error == ERESTART) {
 2979                                 /*
 2980                                  * A retry was scheduled, so
 2981                                  * just return.
 2982                                  */
 2983                                 cam_periph_unlock(periph);
 2984                                 return;
 2985                         }
 2986                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
 2987                         if (error != 0) {
 2988                                 int queued_error;
 2989 
 2990                                 /*
 2991                                  * return all queued I/O with EIO, so that
 2992                                  * the client can retry these I/Os in the
 2993                                  * proper order should it attempt to recover.
 2994                                  */
 2995                                 queued_error = EIO;
 2996 
 2997                                 if (error == ENXIO
 2998                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
 2999                                         /*
 3000                                          * Catastrophic error.  Mark our pack as
 3001                                          * invalid.
 3002                                          */
 3003                                         /*
 3004                                          * XXX See if this is really a media
 3005                                          * XXX change first?
 3006                                          */
 3007                                         xpt_print(periph->path,
 3008                                             "Invalidating pack\n");
 3009                                         softc->flags |= DA_FLAG_PACK_INVALID;
 3010                                         queued_error = ENXIO;
 3011                                 }
 3012                                 bioq_flush(&softc->bio_queue, NULL,
 3013                                            queued_error);
 3014                                 if (bp != NULL) {
 3015                                         bp->bio_error = error;
 3016                                         bp->bio_resid = bp->bio_bcount;
 3017                                         bp->bio_flags |= BIO_ERROR;
 3018                                 }
 3019                         } else if (bp != NULL) {
 3020                                 if (state == DA_CCB_DELETE)
 3021                                         bp->bio_resid = 0;
 3022                                 else
 3023                                         bp->bio_resid = csio->resid;
 3024                                 bp->bio_error = 0;
 3025                                 if (bp->bio_resid != 0)
 3026                                         bp->bio_flags |= BIO_ERROR;
 3027                         }
 3028                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 3029                                 cam_release_devq(done_ccb->ccb_h.path,
 3030                                                  /*relsim_flags*/0,
 3031                                                  /*reduction*/0,
 3032                                                  /*timeout*/0,
 3033                                                  /*getcount_only*/0);
 3034                 } else if (bp != NULL) {
 3035                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 3036                                 panic("REQ_CMP with QFRZN");
 3037                         if (state == DA_CCB_DELETE)
 3038                                 bp->bio_resid = 0;
 3039                         else
 3040                                 bp->bio_resid = csio->resid;
 3041                         if (csio->resid > 0)
 3042                                 bp->bio_flags |= BIO_ERROR;
 3043                         if (softc->error_inject != 0) {
 3044                                 bp->bio_error = softc->error_inject;
 3045                                 bp->bio_resid = bp->bio_bcount;
 3046                                 bp->bio_flags |= BIO_ERROR;
 3047                                 softc->error_inject = 0;
 3048                         }
 3049                 }
 3050 
 3051                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
 3052                 if (LIST_EMPTY(&softc->pending_ccbs))
 3053                         softc->flags |= DA_FLAG_WAS_OTAG;
 3054 
 3055                 xpt_release_ccb(done_ccb);
 3056                 if (state == DA_CCB_DELETE) {
 3057                         TAILQ_HEAD(, bio) queue;
 3058 
 3059                         TAILQ_INIT(&queue);
 3060                         TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
 3061                         softc->delete_run_queue.insert_point = NULL;
 3062                         /*
 3063                          * Normally, the xpt_release_ccb() above would make sure
 3064                          * that when we have more work to do, that work would
 3065                          * get kicked off. However, we specifically keep
 3066                          * delete_running set to 0 before the call above to
 3067                          * allow other I/O to progress when many BIO_DELETE
 3068                          * requests are pushed down. We set delete_running to 0
 3069                          * and call daschedule again so that we don't stall if
 3070                          * there are no other I/Os pending apart from BIO_DELETEs.
 3071                          */
 3072                         softc->delete_running = 0;
 3073                         daschedule(periph);
 3074                         cam_periph_unlock(periph);
 3075                         while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
 3076                                 TAILQ_REMOVE(&queue, bp1, bio_queue);
 3077                                 bp1->bio_error = bp->bio_error;
 3078                                 if (bp->bio_flags & BIO_ERROR) {
 3079                                         bp1->bio_flags |= BIO_ERROR;
 3080                                         bp1->bio_resid = bp1->bio_bcount;
 3081                                 } else
 3082                                         bp1->bio_resid = 0;
 3083                                 biodone(bp1);
 3084                         }
 3085                 } else
 3086                         cam_periph_unlock(periph);
 3087                 if (bp != NULL)
 3088                         biodone(bp);
 3089                 return;
 3090         }
 3091         case DA_CCB_PROBE_RC:
 3092         case DA_CCB_PROBE_RC16:
 3093         {
 3094                 struct     scsi_read_capacity_data *rdcap;
 3095                 struct     scsi_read_capacity_data_long *rcaplong;
 3096                 char       announce_buf[80];
 3097                 int        lbp;
 3098 
 3099                 lbp = 0;
 3100                 rdcap = NULL;
 3101                 rcaplong = NULL;
 3102                 if (state == DA_CCB_PROBE_RC)
 3103                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
 3104                 else
 3105                         rcaplong = (struct scsi_read_capacity_data_long *)
 3106                                 csio->data_ptr;
 3107 
 3108                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3109                         struct disk_params *dp;
 3110                         uint32_t block_size;
 3111                         uint64_t maxsector;
 3112                         u_int lbppbe;   /* LB per physical block exponent. */
 3113                         u_int lalba;    /* Lowest aligned LBA. */
 3114 
 3115                         if (state == DA_CCB_PROBE_RC) {
 3116                                 block_size = scsi_4btoul(rdcap->length);
 3117                                 maxsector = scsi_4btoul(rdcap->addr);
 3118                                 lbppbe = 0;
 3119                                 lalba = 0;
 3120 
 3121                                 /*
 3122                                  * According to SBC-2, if the standard 10
 3123                                  * byte READ CAPACITY command returns 2^32,
 3124                                  * we should issue the 16 byte version of
 3125                                  * the command, since the device in question
 3126                                  * has more sectors than can be represented
 3127                                  * with the short version of the command.
 3128                                  */
 3129                                 if (maxsector == 0xffffffff) {
 3130                                         free(rdcap, M_SCSIDA);
 3131                                         xpt_release_ccb(done_ccb);
 3132                                         softc->state = DA_STATE_PROBE_RC16;
 3133                                         xpt_schedule(periph, priority);
 3134                                         return;
 3135                                 }
 3136                         } else {
 3137                                 block_size = scsi_4btoul(rcaplong->length);
 3138                                 maxsector = scsi_8btou64(rcaplong->addr);
 3139                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
 3140                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
 3141                         }
 3142 
 3143                         /*
 3144                          * Because GEOM code just will panic us if we
 3145                          * give them an 'illegal' value we'll avoid that
 3146                          * here.
 3147                          */
 3148                         if (block_size == 0) {
 3149                                 block_size = 512;
 3150                                 if (maxsector == 0)
 3151                                         maxsector = -1;
 3152                         }
 3153                         if (block_size >= MAXPHYS) {
 3154                                 xpt_print(periph->path,
 3155                                     "unsupportable block size %ju\n",
 3156                                     (uintmax_t) block_size);
 3157                                 announce_buf[0] = '\0';
 3158                                 cam_periph_invalidate(periph);
 3159                         } else {
 3160                                 /*
 3161                                  * We pass rcaplong into dasetgeom(),
 3162                                  * because it will only use it if it is
 3163                                  * non-NULL.
 3164                                  */
 3165                                 dasetgeom(periph, block_size, maxsector,
 3166                                           rcaplong, sizeof(*rcaplong));
 3167                                 lbp = (lalba & SRC16_LBPME_A);
 3168                                 dp = &softc->params;
 3169                                 snprintf(announce_buf, sizeof(announce_buf),
 3170                                     "%juMB (%ju %u byte sectors)",
 3171                                     ((uintmax_t)dp->secsize * dp->sectors) /
 3172                                      (1024 * 1024),
 3173                                     (uintmax_t)dp->sectors, dp->secsize);
 3174                         }
 3175                 } else {
 3176                         int     error;
 3177 
 3178                         announce_buf[0] = '\0';
 3179 
 3180                         /*
 3181                          * Retry any UNIT ATTENTION type errors.  They
 3182                          * are expected at boot.
 3183                          */
 3184                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3185                                         SF_RETRY_UA|SF_NO_PRINT);
 3186                         if (error == ERESTART) {
 3187                                 /*
 3188                                  * A retry was scheuled, so
 3189                                  * just return.
 3190                                  */
 3191                                 return;
 3192                         } else if (error != 0) {
 3193                                 int asc, ascq;
 3194                                 int sense_key, error_code;
 3195                                 int have_sense;
 3196                                 cam_status status;
 3197                                 struct ccb_getdev cgd;
 3198 
 3199                                 /* Don't wedge this device's queue */
 3200                                 status = done_ccb->ccb_h.status;
 3201                                 if ((status & CAM_DEV_QFRZN) != 0)
 3202                                         cam_release_devq(done_ccb->ccb_h.path,
 3203                                                          /*relsim_flags*/0,
 3204                                                          /*reduction*/0,
 3205                                                          /*timeout*/0,
 3206                                                          /*getcount_only*/0);
 3207 
 3208 
 3209                                 xpt_setup_ccb(&cgd.ccb_h, 
 3210                                               done_ccb->ccb_h.path,
 3211                                               CAM_PRIORITY_NORMAL);
 3212                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
 3213                                 xpt_action((union ccb *)&cgd);
 3214 
 3215                                 if (scsi_extract_sense_ccb(done_ccb,
 3216                                     &error_code, &sense_key, &asc, &ascq))
 3217                                         have_sense = TRUE;
 3218                                 else
 3219                                         have_sense = FALSE;
 3220 
 3221                                 /*
 3222                                  * If we tried READ CAPACITY(16) and failed,
 3223                                  * fallback to READ CAPACITY(10).
 3224                                  */
 3225                                 if ((state == DA_CCB_PROBE_RC16) &&
 3226                                     (softc->flags & DA_FLAG_CAN_RC16) &&
 3227                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
 3228                                         CAM_REQ_INVALID) ||
 3229                                      ((have_sense) &&
 3230                                       (error_code == SSD_CURRENT_ERROR) &&
 3231                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
 3232                                         softc->flags &= ~DA_FLAG_CAN_RC16;
 3233                                         free(rdcap, M_SCSIDA);
 3234                                         xpt_release_ccb(done_ccb);
 3235                                         softc->state = DA_STATE_PROBE_RC;
 3236                                         xpt_schedule(periph, priority);
 3237                                         return;
 3238                                 } else
 3239                                 /*
 3240                                  * Attach to anything that claims to be a
 3241                                  * direct access or optical disk device,
 3242                                  * as long as it doesn't return a "Logical
 3243                                  * unit not supported" (0x25) error.
 3244                                  */
 3245                                 if ((have_sense) && (asc != 0x25)
 3246                                  && (error_code == SSD_CURRENT_ERROR)) {
 3247                                         const char *sense_key_desc;
 3248                                         const char *asc_desc;
 3249 
 3250                                         dasetgeom(periph, 512, -1, NULL, 0);
 3251                                         scsi_sense_desc(sense_key, asc, ascq,
 3252                                                         &cgd.inq_data,
 3253                                                         &sense_key_desc,
 3254                                                         &asc_desc);
 3255                                         snprintf(announce_buf,
 3256                                             sizeof(announce_buf),
 3257                                                 "Attempt to query device "
 3258                                                 "size failed: %s, %s",
 3259                                                 sense_key_desc,
 3260                                                 asc_desc);
 3261                                 } else { 
 3262                                         if (have_sense)
 3263                                                 scsi_sense_print(
 3264                                                         &done_ccb->csio);
 3265                                         else {
 3266                                                 xpt_print(periph->path,
 3267                                                     "got CAM status %#x\n",
 3268                                                     done_ccb->ccb_h.status);
 3269                                         }
 3270 
 3271                                         xpt_print(periph->path, "fatal error, "
 3272                                             "failed to attach to device\n");
 3273 
 3274                                         /*
 3275                                          * Free up resources.
 3276                                          */
 3277                                         cam_periph_invalidate(periph);
 3278                                 } 
 3279                         }
 3280                 }
 3281                 free(csio->data_ptr, M_SCSIDA);
 3282                 if (announce_buf[0] != '\0' &&
 3283                     ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
 3284                         /*
 3285                          * Create our sysctl variables, now that we know
 3286                          * we have successfully attached.
 3287                          */
 3288                         /* increase the refcount */
 3289                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
 3290                                 taskqueue_enqueue(taskqueue_thread,
 3291                                                   &softc->sysctl_task);
 3292                                 xpt_announce_periph(periph, announce_buf);
 3293                                 xpt_announce_quirks(periph, softc->quirks,
 3294                                     DA_Q_BIT_STRING);
 3295                         } else {
 3296                                 xpt_print(periph->path, "fatal error, "
 3297                                     "could not acquire reference count\n");
 3298                         }
 3299                 }
 3300 
 3301                 /* We already probed the device. */
 3302                 if (softc->flags & DA_FLAG_PROBED) {
 3303                         daprobedone(periph, done_ccb);
 3304                         return;
 3305                 }
 3306 
 3307                 /* Ensure re-probe doesn't see old delete. */
 3308                 softc->delete_available = 0;
 3309                 dadeleteflag(softc, DA_DELETE_ZERO, 1);
 3310                 if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
 3311                         /*
 3312                          * Based on older SBC-3 spec revisions
 3313                          * any of the UNMAP methods "may" be
 3314                          * available via LBP given this flag so
 3315                          * we flag all of them as availble and
 3316                          * then remove those which further
 3317                          * probes confirm aren't available
 3318                          * later.
 3319                          *
 3320                          * We could also check readcap(16) p_type
 3321                          * flag to exclude one or more invalid
 3322                          * write same (X) types here
 3323                          */
 3324                         dadeleteflag(softc, DA_DELETE_WS16, 1);
 3325                         dadeleteflag(softc, DA_DELETE_WS10, 1);
 3326                         dadeleteflag(softc, DA_DELETE_UNMAP, 1);
 3327 
 3328                         xpt_release_ccb(done_ccb);
 3329                         softc->state = DA_STATE_PROBE_LBP;
 3330                         xpt_schedule(periph, priority);
 3331                         return;
 3332                 }
 3333 
 3334                 xpt_release_ccb(done_ccb);
 3335                 softc->state = DA_STATE_PROBE_BDC;
 3336                 xpt_schedule(periph, priority);
 3337                 return;
 3338         }
 3339         case DA_CCB_PROBE_LBP:
 3340         {
 3341                 struct scsi_vpd_logical_block_prov *lbp;
 3342 
 3343                 lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
 3344 
 3345                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3346                         /*
 3347                          * T10/1799-D Revision 31 states at least one of these
 3348                          * must be supported but we don't currently enforce this.
 3349                          */
 3350                         dadeleteflag(softc, DA_DELETE_WS16,
 3351                                      (lbp->flags & SVPD_LBP_WS16));
 3352                         dadeleteflag(softc, DA_DELETE_WS10,
 3353                                      (lbp->flags & SVPD_LBP_WS10));
 3354                         dadeleteflag(softc, DA_DELETE_UNMAP,
 3355                                      (lbp->flags & SVPD_LBP_UNMAP));
 3356                 } else {
 3357                         int error;
 3358                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3359                                         SF_RETRY_UA|SF_NO_PRINT);
 3360                         if (error == ERESTART)
 3361                                 return;
 3362                         else if (error != 0) {
 3363                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3364                                         /* Don't wedge this device's queue */
 3365                                         cam_release_devq(done_ccb->ccb_h.path,
 3366                                                          /*relsim_flags*/0,
 3367                                                          /*reduction*/0,
 3368                                                          /*timeout*/0,
 3369                                                          /*getcount_only*/0);
 3370                                 }
 3371 
 3372                                 /*
 3373                                  * Failure indicates we don't support any SBC-3
 3374                                  * delete methods with UNMAP
 3375                                  */
 3376                         }
 3377                 }
 3378 
 3379                 free(lbp, M_SCSIDA);
 3380                 xpt_release_ccb(done_ccb);
 3381                 softc->state = DA_STATE_PROBE_BLK_LIMITS;
 3382                 xpt_schedule(periph, priority);
 3383                 return;
 3384         }
 3385         case DA_CCB_PROBE_BLK_LIMITS:
 3386         {
 3387                 struct scsi_vpd_block_limits *block_limits;
 3388 
 3389                 block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
 3390 
 3391                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3392                         uint32_t max_txfer_len = scsi_4btoul(
 3393                                 block_limits->max_txfer_len);
 3394                         uint32_t max_unmap_lba_cnt = scsi_4btoul(
 3395                                 block_limits->max_unmap_lba_cnt);
 3396                         uint32_t max_unmap_blk_cnt = scsi_4btoul(
 3397                                 block_limits->max_unmap_blk_cnt);
 3398                         uint64_t ws_max_blks = scsi_8btou64(
 3399                                 block_limits->max_write_same_length);
 3400 
 3401                         if (max_txfer_len != 0) {
 3402                                 softc->disk->d_maxsize = MIN(softc->maxio,
 3403                                     (off_t)max_txfer_len * softc->params.secsize);
 3404                         }
 3405 
 3406                         /*
 3407                          * We should already support UNMAP but we check lba
 3408                          * and block count to be sure
 3409                          */
 3410                         if (max_unmap_lba_cnt != 0x00L &&
 3411                             max_unmap_blk_cnt != 0x00L) {
 3412                                 softc->unmap_max_lba = max_unmap_lba_cnt;
 3413                                 softc->unmap_max_ranges = min(max_unmap_blk_cnt,
 3414                                         UNMAP_MAX_RANGES);
 3415                         } else {
 3416                                 /*
 3417                                  * Unexpected UNMAP limits which means the
 3418                                  * device doesn't actually support UNMAP
 3419                                  */
 3420                                 dadeleteflag(softc, DA_DELETE_UNMAP, 0);
 3421                         }
 3422 
 3423                         if (ws_max_blks != 0x00L)
 3424                                 softc->ws_max_blks = ws_max_blks;
 3425                 } else {
 3426                         int error;
 3427                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3428                                         SF_RETRY_UA|SF_NO_PRINT);
 3429                         if (error == ERESTART)
 3430                                 return;
 3431                         else if (error != 0) {
 3432                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3433                                         /* Don't wedge this device's queue */
 3434                                         cam_release_devq(done_ccb->ccb_h.path,
 3435                                                          /*relsim_flags*/0,
 3436                                                          /*reduction*/0,
 3437                                                          /*timeout*/0,
 3438                                                          /*getcount_only*/0);
 3439                                 }
 3440 
 3441                                 /*
 3442                                  * Failure here doesn't mean UNMAP is not
 3443                                  * supported as this is an optional page.
 3444                                  */
 3445                                 softc->unmap_max_lba = 1;
 3446                                 softc->unmap_max_ranges = 1;
 3447                         }
 3448                 }
 3449 
 3450                 free(block_limits, M_SCSIDA);
 3451                 xpt_release_ccb(done_ccb);
 3452                 softc->state = DA_STATE_PROBE_BDC;
 3453                 xpt_schedule(periph, priority);
 3454                 return;
 3455         }
 3456         case DA_CCB_PROBE_BDC:
 3457         {
 3458                 struct scsi_vpd_block_characteristics *bdc;
 3459 
 3460                 bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
 3461 
 3462                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3463                         /*
 3464                          * Disable queue sorting for non-rotational media
 3465                          * by default.
 3466                          */
 3467                         u_int16_t old_rate = softc->disk->d_rotation_rate;
 3468 
 3469                         softc->disk->d_rotation_rate =
 3470                                 scsi_2btoul(bdc->medium_rotation_rate);
 3471                         if (softc->disk->d_rotation_rate ==
 3472                             SVPD_BDC_RATE_NON_ROTATING) {
 3473                                 softc->sort_io_queue = 0;
 3474                         }
 3475                         if (softc->disk->d_rotation_rate != old_rate) {
 3476                                 disk_attr_changed(softc->disk,
 3477                                     "GEOM::rotation_rate", M_NOWAIT);
 3478                         }
 3479                 } else {
 3480                         int error;
 3481                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3482                                         SF_RETRY_UA|SF_NO_PRINT);
 3483                         if (error == ERESTART)
 3484                                 return;
 3485                         else if (error != 0) {
 3486                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3487                                         /* Don't wedge this device's queue */
 3488                                         cam_release_devq(done_ccb->ccb_h.path,
 3489                                                          /*relsim_flags*/0,
 3490                                                          /*reduction*/0,
 3491                                                          /*timeout*/0,
 3492                                                          /*getcount_only*/0);
 3493                                 }
 3494                         }
 3495                 }
 3496 
 3497                 free(bdc, M_SCSIDA);
 3498                 xpt_release_ccb(done_ccb);
 3499                 softc->state = DA_STATE_PROBE_ATA;
 3500                 xpt_schedule(periph, priority);
 3501                 return;
 3502         }
 3503         case DA_CCB_PROBE_ATA:
 3504         {
 3505                 int i;
 3506                 struct ata_params *ata_params;
 3507                 int16_t *ptr;
 3508 
 3509                 ata_params = (struct ata_params *)csio->data_ptr;
 3510                 ptr = (uint16_t *)ata_params;
 3511 
 3512                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
 3513                         uint16_t old_rate;
 3514 
 3515                         for (i = 0; i < sizeof(*ata_params) / 2; i++)
 3516                                 ptr[i] = le16toh(ptr[i]);
 3517                         if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
 3518                             (softc->quirks & DA_Q_NO_UNMAP) == 0) {
 3519                                 dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
 3520                                 if (ata_params->max_dsm_blocks != 0)
 3521                                         softc->trim_max_ranges = min(
 3522                                           softc->trim_max_ranges,
 3523                                           ata_params->max_dsm_blocks *
 3524                                           ATA_DSM_BLK_RANGES);
 3525                         }
 3526                         /*
 3527                          * Disable queue sorting for non-rotational media
 3528                          * by default.
 3529                          */
 3530                         old_rate = softc->disk->d_rotation_rate;
 3531                         softc->disk->d_rotation_rate =
 3532                             ata_params->media_rotation_rate;
 3533                         if (softc->disk->d_rotation_rate ==
 3534                             ATA_RATE_NON_ROTATING) {
 3535                                 softc->sort_io_queue = 0;
 3536                         }
 3537 
 3538                         if (softc->disk->d_rotation_rate != old_rate) {
 3539                                 disk_attr_changed(softc->disk,
 3540                                     "GEOM::rotation_rate", M_NOWAIT);
 3541                         }
 3542                 } else {
 3543                         int error;
 3544                         error = daerror(done_ccb, CAM_RETRY_SELTO,
 3545                                         SF_RETRY_UA|SF_NO_PRINT);
 3546                         if (error == ERESTART)
 3547                                 return;
 3548                         else if (error != 0) {
 3549                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
 3550                                         /* Don't wedge this device's queue */
 3551                                         cam_release_devq(done_ccb->ccb_h.path,
 3552                                                          /*relsim_flags*/0,
 3553                                                          /*reduction*/0,
 3554                                                          /*timeout*/0,
 3555                                                          /*getcount_only*/0);
 3556                                 }
 3557                         }
 3558                 }
 3559 
 3560                 free(ata_params, M_SCSIDA);
 3561                 daprobedone(periph, done_ccb);
 3562                 return;
 3563         }
 3564         case DA_CCB_DUMP:
 3565                 /* No-op.  We're polling */
 3566                 return;
 3567         case DA_CCB_TUR:
 3568         {
 3569                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 3570 
 3571                         if (daerror(done_ccb, CAM_RETRY_SELTO,
 3572                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
 3573                             ERESTART)
 3574                                 return;
 3575                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 3576                                 cam_release_devq(done_ccb->ccb_h.path,
 3577                                                  /*relsim_flags*/0,
 3578                                                  /*reduction*/0,
 3579                                                  /*timeout*/0,
 3580                                                  /*getcount_only*/0);
 3581                 }
 3582                 xpt_release_ccb(done_ccb);
 3583                 cam_periph_release_locked(periph);
 3584                 return;
 3585         }
 3586         default:
 3587                 break;
 3588         }
 3589         xpt_release_ccb(done_ccb);
 3590 }
 3591 
 3592 static void
 3593 dareprobe(struct cam_periph *periph)
 3594 {
 3595         struct da_softc   *softc;
 3596         cam_status status;
 3597 
 3598         softc = (struct da_softc *)periph->softc;
 3599 
 3600         /* Probe in progress; don't interfere. */
 3601         if (softc->state != DA_STATE_NORMAL)
 3602                 return;
 3603 
 3604         status = cam_periph_acquire(periph);
 3605         KASSERT(status == CAM_REQ_CMP,
 3606             ("dareprobe: cam_periph_acquire failed"));
 3607 
 3608         if (softc->flags & DA_FLAG_CAN_RC16)
 3609                 softc->state = DA_STATE_PROBE_RC16;
 3610         else
 3611                 softc->state = DA_STATE_PROBE_RC;
 3612 
 3613         xpt_schedule(periph, CAM_PRIORITY_DEV);
 3614 }
 3615 
 3616 static int
 3617 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
 3618 {
 3619         struct da_softc   *softc;
 3620         struct cam_periph *periph;
 3621         int error, error_code, sense_key, asc, ascq;
 3622 
 3623         periph = xpt_path_periph(ccb->ccb_h.path);
 3624         softc = (struct da_softc *)periph->softc;
 3625 
 3626         /*
 3627          * Automatically detect devices that do not support
 3628          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
 3629          */
 3630         error = 0;
 3631         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
 3632                 error = cmd6workaround(ccb);
 3633         } else if (scsi_extract_sense_ccb(ccb,
 3634             &error_code, &sense_key, &asc, &ascq)) {
 3635                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
 3636                         error = cmd6workaround(ccb);
 3637                 /*
 3638                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
 3639                  * query the capacity and notify upper layers.
 3640                  */
 3641                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
 3642                     asc == 0x2A && ascq == 0x09) {
 3643                         xpt_print(periph->path, "Capacity data has changed\n");
 3644                         softc->flags &= ~DA_FLAG_PROBED;
 3645                         dareprobe(periph);
 3646                         sense_flags |= SF_NO_PRINT;
 3647                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
 3648                     asc == 0x28 && ascq == 0x00) {
 3649                         softc->flags &= ~DA_FLAG_PROBED;
 3650                         disk_media_changed(softc->disk, M_NOWAIT);
 3651                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
 3652                     asc == 0x3F && ascq == 0x03) {
 3653                         xpt_print(periph->path, "INQUIRY data has changed\n");
 3654                         softc->flags &= ~DA_FLAG_PROBED;
 3655                         dareprobe(periph);
 3656                         sense_flags |= SF_NO_PRINT;
 3657                 } else if (sense_key == SSD_KEY_NOT_READY &&
 3658                     asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
 3659                         softc->flags |= DA_FLAG_PACK_INVALID;
 3660                         disk_media_gone(softc->disk, M_NOWAIT);
 3661                 }
 3662         }
 3663         if (error == ERESTART)
 3664                 return (ERESTART);
 3665 
 3666         /*
 3667          * XXX
 3668          * Until we have a better way of doing pack validation,
 3669          * don't treat UAs as errors.
 3670          */
 3671         sense_flags |= SF_RETRY_UA;
 3672 
 3673         if (softc->quirks & DA_Q_RETRY_BUSY)
 3674                 sense_flags |= SF_RETRY_BUSY;
 3675         return(cam_periph_error(ccb, cam_flags, sense_flags,
 3676                                 &softc->saved_ccb));
 3677 }
 3678 
 3679 static void
 3680 damediapoll(void *arg)
 3681 {
 3682         struct cam_periph *periph = arg;
 3683         struct da_softc *softc = periph->softc;
 3684 
 3685         if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
 3686                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
 3687                         softc->tur = 1;
 3688                         daschedule(periph);
 3689                 }
 3690         }
 3691         /* Queue us up again */
 3692         if (da_poll_period != 0)
 3693                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
 3694 }
 3695 
 3696 static void
 3697 daprevent(struct cam_periph *periph, int action)
 3698 {
 3699         struct  da_softc *softc;
 3700         union   ccb *ccb;               
 3701         int     error;
 3702                 
 3703         softc = (struct da_softc *)periph->softc;
 3704 
 3705         if (((action == PR_ALLOW)
 3706           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
 3707          || ((action == PR_PREVENT)
 3708           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
 3709                 return;
 3710         }
 3711 
 3712         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 3713 
 3714         scsi_prevent(&ccb->csio,
 3715                      /*retries*/1,
 3716                      /*cbcfp*/dadone,
 3717                      MSG_SIMPLE_Q_TAG,
 3718                      action,
 3719                      SSD_FULL_SIZE,
 3720                      5000);
 3721 
 3722         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
 3723             SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
 3724 
 3725         if (error == 0) {
 3726                 if (action == PR_ALLOW)
 3727                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
 3728                 else
 3729                         softc->flags |= DA_FLAG_PACK_LOCKED;
 3730         }
 3731 
 3732         xpt_release_ccb(ccb);
 3733 }
 3734 
 3735 static void
 3736 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
 3737           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
 3738 {
 3739         struct ccb_calc_geometry ccg;
 3740         struct da_softc *softc;
 3741         struct disk_params *dp;
 3742         u_int lbppbe, lalba;
 3743         int error;
 3744 
 3745         softc = (struct da_softc *)periph->softc;
 3746 
 3747         dp = &softc->params;
 3748         dp->secsize = block_len;
 3749         dp->sectors = maxsector + 1;
 3750         if (rcaplong != NULL) {
 3751                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
 3752                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
 3753                 lalba &= SRC16_LALBA_A;
 3754         } else {
 3755                 lbppbe = 0;
 3756                 lalba = 0;
 3757         }
 3758 
 3759         if (lbppbe > 0) {
 3760                 dp->stripesize = block_len << lbppbe;
 3761                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
 3762                     dp->stripesize;
 3763         } else if (softc->quirks & DA_Q_4K) {
 3764                 dp->stripesize = 4096;
 3765                 dp->stripeoffset = 0;
 3766         } else {
 3767                 dp->stripesize = 0;
 3768                 dp->stripeoffset = 0;
 3769         }
 3770         /*
 3771          * Have the controller provide us with a geometry
 3772          * for this disk.  The only time the geometry
 3773          * matters is when we boot and the controller
 3774          * is the only one knowledgeable enough to come
 3775          * up with something that will make this a bootable
 3776          * device.
 3777          */
 3778         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 3779         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
 3780         ccg.block_size = dp->secsize;
 3781         ccg.volume_size = dp->sectors;
 3782         ccg.heads = 0;
 3783         ccg.secs_per_track = 0;
 3784         ccg.cylinders = 0;
 3785         xpt_action((union ccb*)&ccg);
 3786         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 3787                 /*
 3788                  * We don't know what went wrong here- but just pick
 3789                  * a geometry so we don't have nasty things like divide
 3790                  * by zero.
 3791                  */
 3792                 dp->heads = 255;
 3793                 dp->secs_per_track = 255;
 3794                 dp->cylinders = dp->sectors / (255 * 255);
 3795                 if (dp->cylinders == 0) {
 3796                         dp->cylinders = 1;
 3797                 }
 3798         } else {
 3799                 dp->heads = ccg.heads;
 3800                 dp->secs_per_track = ccg.secs_per_track;
 3801                 dp->cylinders = ccg.cylinders;
 3802         }
 3803 
 3804         /*
 3805          * If the user supplied a read capacity buffer, and if it is
 3806          * different than the previous buffer, update the data in the EDT.
 3807          * If it's the same, we don't bother.  This avoids sending an
 3808          * update every time someone opens this device.
 3809          */
 3810         if ((rcaplong != NULL)
 3811          && (bcmp(rcaplong, &softc->rcaplong,
 3812                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
 3813                 struct ccb_dev_advinfo cdai;
 3814 
 3815                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 3816                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
 3817                 cdai.buftype = CDAI_TYPE_RCAPLONG;
 3818                 cdai.flags = CDAI_FLAG_STORE;
 3819                 cdai.bufsiz = rcap_len;
 3820                 cdai.buf = (uint8_t *)rcaplong;
 3821                 xpt_action((union ccb *)&cdai);
 3822                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
 3823                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
 3824                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
 3825                         xpt_print(periph->path, "%s: failed to set read "
 3826                                   "capacity advinfo\n", __func__);
 3827                         /* Use cam_error_print() to decode the status */
 3828                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
 3829                                         CAM_EPF_ALL);
 3830                 } else {
 3831                         bcopy(rcaplong, &softc->rcaplong,
 3832                               min(sizeof(softc->rcaplong), rcap_len));
 3833                 }
 3834         }
 3835 
 3836         softc->disk->d_sectorsize = softc->params.secsize;
 3837         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
 3838         softc->disk->d_stripesize = softc->params.stripesize;
 3839         softc->disk->d_stripeoffset = softc->params.stripeoffset;
 3840         /* XXX: these are not actually "firmware" values, so they may be wrong */
 3841         softc->disk->d_fwsectors = softc->params.secs_per_track;
 3842         softc->disk->d_fwheads = softc->params.heads;
 3843         softc->disk->d_devstat->block_size = softc->params.secsize;
 3844         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
 3845 
 3846         error = disk_resize(softc->disk, M_NOWAIT);
 3847         if (error != 0)
 3848                 xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
 3849 }
 3850 
 3851 static void
 3852 dasendorderedtag(void *arg)
 3853 {
 3854         struct da_softc *softc = arg;
 3855 
 3856         if (da_send_ordered) {
 3857                 if (!LIST_EMPTY(&softc->pending_ccbs)) {
 3858                         if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
 3859                                 softc->flags |= DA_FLAG_NEED_OTAG;
 3860                         softc->flags &= ~DA_FLAG_WAS_OTAG;
 3861                 }
 3862         }
 3863         /* Queue us up again */
 3864         callout_reset(&softc->sendordered_c,
 3865             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
 3866             dasendorderedtag, softc);
 3867 }
 3868 
 3869 /*
 3870  * Step through all DA peripheral drivers, and if the device is still open,
 3871  * sync the disk cache to physical media.
 3872  */
 3873 static void
 3874 dashutdown(void * arg, int howto)
 3875 {
 3876         struct cam_periph *periph;
 3877         struct da_softc *softc;
 3878         union ccb *ccb;
 3879         int error;
 3880 
 3881         CAM_PERIPH_FOREACH(periph, &dadriver) {
 3882                 softc = (struct da_softc *)periph->softc;
 3883                 if (SCHEDULER_STOPPED()) {
 3884                         /* If we paniced with the lock held, do not recurse. */
 3885                         if (!cam_periph_owned(periph) &&
 3886                             (softc->flags & DA_FLAG_OPEN)) {
 3887                                 dadump(softc->disk, NULL, 0, 0, 0);
 3888                         }
 3889                         continue;
 3890                 }
 3891                 cam_periph_lock(periph);
 3892 
 3893                 /*
 3894                  * We only sync the cache if the drive is still open, and
 3895                  * if the drive is capable of it..
 3896                  */
 3897                 if (((softc->flags & DA_FLAG_OPEN) == 0)
 3898                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
 3899                         cam_periph_unlock(periph);
 3900                         continue;
 3901                 }
 3902 
 3903                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 3904                 scsi_synchronize_cache(&ccb->csio,
 3905                                        /*retries*/0,
 3906                                        /*cbfcnp*/dadone,
 3907                                        MSG_SIMPLE_Q_TAG,
 3908                                        /*begin_lba*/0, /* whole disk */
 3909                                        /*lb_count*/0,
 3910                                        SSD_FULL_SIZE,
 3911                                        60 * 60 * 1000);
 3912 
 3913                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
 3914                     /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
 3915                     softc->disk->d_devstat);
 3916                 if (error != 0)
 3917                         xpt_print(periph->path, "Synchronize cache failed\n");
 3918                 xpt_release_ccb(ccb);
 3919                 cam_periph_unlock(periph);
 3920         }
 3921 }
 3922 
 3923 #else /* !_KERNEL */
 3924 
 3925 /*
 3926  * XXX These are only left out of the kernel build to silence warnings.  If,
 3927  * for some reason these functions are used in the kernel, the ifdefs should
 3928  * be moved so they are included both in the kernel and userland.
 3929  */
 3930 void
 3931 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
 3932                  void (*cbfcnp)(struct cam_periph *, union ccb *),
 3933                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
 3934                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
 3935                  u_int32_t timeout)
 3936 {
 3937         struct scsi_format_unit *scsi_cmd;
 3938 
 3939         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
 3940         scsi_cmd->opcode = FORMAT_UNIT;
 3941         scsi_cmd->byte2 = byte2;
 3942         scsi_ulto2b(ileave, scsi_cmd->interleave);
 3943 
 3944         cam_fill_csio(csio,
 3945                       retries,
 3946                       cbfcnp,
 3947                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
 3948                       tag_action,
 3949                       data_ptr,
 3950                       dxfer_len,
 3951                       sense_len,
 3952                       sizeof(*scsi_cmd),
 3953                       timeout);
 3954 }
 3955 
 3956 void
 3957 scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
 3958                   void (*cbfcnp)(struct cam_periph *, union ccb *),
 3959                   uint8_t tag_action, uint8_t list_format,
 3960                   uint32_t addr_desc_index, uint8_t *data_ptr,
 3961                   uint32_t dxfer_len, int minimum_cmd_size, 
 3962                   uint8_t sense_len, uint32_t timeout)
 3963 {
 3964         uint8_t cdb_len;
 3965 
 3966         /*
 3967          * These conditions allow using the 10 byte command.  Otherwise we
 3968          * need to use the 12 byte command.
 3969          */
 3970         if ((minimum_cmd_size <= 10)
 3971          && (addr_desc_index == 0) 
 3972          && (dxfer_len <= SRDD10_MAX_LENGTH)) {
 3973                 struct scsi_read_defect_data_10 *cdb10;
 3974 
 3975                 cdb10 = (struct scsi_read_defect_data_10 *)
 3976                         &csio->cdb_io.cdb_bytes;
 3977 
 3978                 cdb_len = sizeof(*cdb10);
 3979                 bzero(cdb10, cdb_len);
 3980                 cdb10->opcode = READ_DEFECT_DATA_10;
 3981                 cdb10->format = list_format;
 3982                 scsi_ulto2b(dxfer_len, cdb10->alloc_length);
 3983         } else {
 3984                 struct scsi_read_defect_data_12 *cdb12;
 3985 
 3986                 cdb12 = (struct scsi_read_defect_data_12 *)
 3987                         &csio->cdb_io.cdb_bytes;
 3988 
 3989                 cdb_len = sizeof(*cdb12);
 3990                 bzero(cdb12, cdb_len);
 3991                 cdb12->opcode = READ_DEFECT_DATA_12;
 3992                 cdb12->format = list_format;
 3993                 scsi_ulto4b(dxfer_len, cdb12->alloc_length);
 3994                 scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
 3995         }
 3996 
 3997         cam_fill_csio(csio,
 3998                       retries,
 3999                       cbfcnp,
 4000                       /*flags*/ CAM_DIR_IN,
 4001                       tag_action,
 4002                       data_ptr,
 4003                       dxfer_len,
 4004                       sense_len,
 4005                       cdb_len,
 4006                       timeout);
 4007 }
 4008 
 4009 void
 4010 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
 4011               void (*cbfcnp)(struct cam_periph *, union ccb *),
 4012               u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
 4013               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
 4014               u_int32_t timeout)
 4015 {
 4016         struct scsi_sanitize *scsi_cmd;
 4017 
 4018         scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
 4019         scsi_cmd->opcode = SANITIZE;
 4020         scsi_cmd->byte2 = byte2;
 4021         scsi_cmd->control = control;
 4022         scsi_ulto2b(dxfer_len, scsi_cmd->length);
 4023 
 4024         cam_fill_csio(csio,
 4025                       retries,
 4026                       cbfcnp,
 4027                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
 4028                       tag_action,
 4029                       data_ptr,
 4030                       dxfer_len,
 4031                       sense_len,
 4032                       sizeof(*scsi_cmd),
 4033                       timeout);
 4034 }
 4035 
 4036 #endif /* _KERNEL */

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