sys/dev/ata/ata_raidvar.h

   1 /*      $NetBSD: ata_raidvar.h,v 1.10 2008/09/16 11:45:30 tron Exp $    */
   2
   3 /*
   4  * Copyright (c) 2003 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #ifndef _DEV_ATA_ATA_RAIDVAR_H_
  39 #define _DEV_ATA_ATA_RAIDVAR_H_
  40
  41 #include <sys/queue.h>
  42
  43 /*
  44  * Types of RAID configurations we support.  Do not change the order
  45  * of this list, as it will change the order in which the arrays are
  46  * sorted.
  47  *
  48  * If this list is updated, ensure the array in
  49  * ata_raid.c:ata_raid_type_name() is also updated.
  50  */
  51 #define ATA_RAID_TYPE_PROMISE   0
  52 #define ATA_RAID_TYPE_ADAPTEC   1
  53 #define ATA_RAID_TYPE_VIA       2
  54 #define ATA_RAID_TYPE_NVIDIA    3
  55 #define ATA_RAID_TYPE_JMICRON   4
  56 #define ATA_RAID_TYPE_INTEL     5
  57 #define ATA_RAID_TYPE_MAX       5
  58
  59 /*
  60  * Max # of disks supported by a single array.  This is limited by
  61  * the number that the individual controller config blocks can support:
  62  *
  63  *      Promise         8
  64  */
  65 #define ATA_RAID_MAX_DISKS      8
  66
  67 struct ataraid_disk_info {
  68         device_t adi_dev;               /* disk's device */
  69         int     adi_status;             /* disk's status */
  70         u_int   adi_sectors;
  71         u_int   adi_compsize;           /* in sectors */
  72 };
  73
  74 /* adi_status */
  75 #define ADI_S_ONLINE            0x01
  76 #define ADI_S_ASSIGNED          0x02
  77 #define ADI_S_SPARE             0x04
  78
  79 struct ataraid_array_info {
  80         TAILQ_ENTRY(ataraid_array_info) aai_list;
  81
  82         device_t aai_ld;                /* associated logical disk */
  83
  84         u_int   aai_type;               /* array type */
  85         u_int   aai_arrayno;            /* array number */
  86         int     aai_level;              /* RAID level */
  87         int     aai_generation;         /* config generation # */
  88         int     aai_status;             /* array status */
  89
  90         /* Geometry info. */
  91         u_int   aai_interleave;         /* stripe size */
  92         u_int   aai_width;              /* array width */
  93         u_int   aai_ndisks;             /* number of disks */
  94         u_int   aai_heads;              /* tracks/cyl */
  95         u_int   aai_sectors;            /* secs/track */
  96         u_int   aai_cylinders;          /* cyl/unit */
  97         u_int   aai_capacity;           /* in sectors */
  98         u_int   aai_offset;             /* component start offset */
  99         u_int   aai_reserved;           /* component reserved sectors */
 100
 101         char    aai_name[32];           /* array volume name */
 102
 103         struct ataraid_disk_info aai_disks[ATA_RAID_MAX_DISKS];
 104 };
 105
 106 /* aai_level */
 107 #define AAI_L_SPAN              0x01
 108 #define AAI_L_RAID0             0x02
 109 #define AAI_L_RAID1             0x04
 110 #define AAI_L_RAID5             0x08
 111
 112 /* aai_status */
 113 #define AAI_S_READY             0x01
 114 #define AAI_S_DEGRADED          0x02
 115
 116 struct vnode;
 117 struct wd_softc;
 118
 119 typedef TAILQ_HEAD(, ataraid_array_info) ataraid_array_info_list_t;
 120 extern ataraid_array_info_list_t ataraid_array_info_list;
 121
 122 void    ata_raid_check_component(device_t);
 123 const char *ata_raid_type_name(u_int);
 124
 125 struct ataraid_array_info *ata_raid_get_array_info(u_int, u_int);
 126 int     ata_raid_config_block_rw(struct vnode *, daddr_t, void *,
 127             size_t, int);
 128
 129 struct vnode *ata_raid_disk_vnode_find(struct ataraid_disk_info *);
 130
 131 /* Promise RAID support */
 132 int     ata_raid_read_config_promise(struct wd_softc *);
 133
 134 /* Adaptec HostRAID support */
 135 int     ata_raid_read_config_adaptec(struct wd_softc *);
 136
 137 /* VIA V-RAID support */
 138 int     ata_raid_read_config_via(struct wd_softc *);
 139
 140 /* nVidia MediaShield support */
 141 int     ata_raid_read_config_nvidia(struct wd_softc *);
 142
 143 /* JMicron RAID support */
 144 int     ata_raid_read_config_jmicron(struct wd_softc *);
 145
 146 /* Intel MatrixRAID support */
 147 int     ata_raid_read_config_intel(struct wd_softc *);
 148
 149 #endif /* _DEV_ATA_ATA_RAIDVAR_H_ */