| 1 | /* |
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| 2 | md_u.h : user <=> kernel API between Linux raidtools and RAID drivers |
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| 3 | Copyright (C) 1998 Ingo Molnar |
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| 4 | |
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| 5 | This program is free software; you can redistribute it and/or modify |
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| 6 | it under the terms of the GNU General Public License as published by |
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| 7 | the Free Software Foundation; either version 2, or (at your option) |
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| 8 | any later version. |
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| 9 | |
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| 10 | You should have received a copy of the GNU General Public License |
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| 11 | (for example /usr/src/linux/COPYING); if not, write to the Free |
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| 12 | Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 13 | */ |
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| 14 | |
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| 15 | #ifndef _MD_U_H |
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| 16 | #define _MD_U_H |
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| 17 | |
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| 18 | /* ioctls */ |
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| 19 | |
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| 20 | /* status */ |
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| 21 | #define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t) |
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| 22 | #define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t) |
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| 23 | #define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t) |
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| 24 | #define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13) |
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| 25 | #define RAID_AUTORUN _IO (MD_MAJOR, 0x14) |
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| 26 | |
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| 27 | /* configuration */ |
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| 28 | #define CLEAR_ARRAY _IO (MD_MAJOR, 0x20) |
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| 29 | #define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) |
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| 30 | #define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22) |
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| 31 | #define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t) |
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| 32 | #define SET_DISK_INFO _IO (MD_MAJOR, 0x24) |
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| 33 | #define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25) |
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| 34 | #define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26) |
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| 35 | #define PROTECT_ARRAY _IO (MD_MAJOR, 0x27) |
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| 36 | #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) |
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| 37 | #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) |
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| 38 | #define HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a) |
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| 39 | |
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| 40 | /* usage */ |
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| 41 | #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) |
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| 42 | #define START_ARRAY _IO (MD_MAJOR, 0x31) |
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| 43 | #define STOP_ARRAY _IO (MD_MAJOR, 0x32) |
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| 44 | #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) |
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| 45 | #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) |
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| 46 | |
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| 47 | typedef struct mdu_version_s { |
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| 48 | int major; |
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| 49 | int minor; |
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| 50 | int patchlevel; |
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| 51 | } mdu_version_t; |
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| 52 | |
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| 53 | typedef struct mdu_array_info_s { |
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| 54 | /* |
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| 55 | * Generic constant information |
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| 56 | */ |
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| 57 | int major_version; |
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| 58 | int minor_version; |
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| 59 | int patch_version; |
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| 60 | int ctime; |
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| 61 | int level; |
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| 62 | int size; |
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| 63 | int nr_disks; |
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| 64 | int raid_disks; |
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| 65 | int md_minor; |
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| 66 | int not_persistent; |
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| 67 | |
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| 68 | /* |
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| 69 | * Generic state information |
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| 70 | */ |
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| 71 | int utime; /* 0 Superblock update time */ |
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| 72 | int state; /* 1 State bits (clean, ...) */ |
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| 73 | int active_disks; /* 2 Number of currently active disks */ |
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| 74 | int working_disks; /* 3 Number of working disks */ |
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| 75 | int failed_disks; /* 4 Number of failed disks */ |
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| 76 | int spare_disks; /* 5 Number of spare disks */ |
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| 77 | |
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| 78 | /* |
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| 79 | * Personality information |
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| 80 | */ |
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| 81 | int layout; /* 0 the array's physical layout */ |
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| 82 | int chunk_size; /* 1 chunk size in bytes */ |
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| 83 | |
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| 84 | } mdu_array_info_t; |
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| 85 | |
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| 86 | typedef struct mdu_disk_info_s { |
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| 87 | /* |
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| 88 | * configuration/status of one particular disk |
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| 89 | */ |
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| 90 | int number; |
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| 91 | int major; |
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| 92 | int minor; |
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| 93 | int raid_disk; |
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| 94 | int state; |
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| 95 | |
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| 96 | } mdu_disk_info_t; |
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| 97 | |
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| 98 | typedef struct mdu_start_info_s { |
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| 99 | /* |
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| 100 | * configuration/status of one particular disk |
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| 101 | */ |
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| 102 | int major; |
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| 103 | int minor; |
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| 104 | int raid_disk; |
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| 105 | int state; |
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| 106 | |
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| 107 | } mdu_start_info_t; |
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| 108 | |
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| 109 | typedef struct mdu_param_s |
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| 110 | { |
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| 111 | int personality; /* 1,2,3,4 */ |
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| 112 | int chunk_size; /* in bytes */ |
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| 113 | int max_fault; /* unused for now */ |
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| 114 | } mdu_param_t; |
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| 115 | |
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| 116 | #endif |
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| 117 | |
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