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Merge tag 'disintegrate-raid-20121009' of git://git.infradead.org/use…
…rs/dhowells/linux-headers into for-next UAPI Disintegration 2012-10-09
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +0,0 @@ | ||
| header-y += md_p.h | ||
| header-y += md_u.h | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,3 @@ | ||
| # UAPI Header export list | ||
| header-y += md_p.h | ||
| header-y += md_u.h |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,155 @@ | ||
| /* | ||
| md_u.h : user <=> kernel API between Linux raidtools and RAID drivers | ||
| Copyright (C) 1998 Ingo Molnar | ||
| This program is free software; you can redistribute it and/or modify | ||
| it under the terms of the GNU General Public License as published by | ||
| the Free Software Foundation; either version 2, or (at your option) | ||
| any later version. | ||
| You should have received a copy of the GNU General Public License | ||
| (for example /usr/src/linux/COPYING); if not, write to the Free | ||
| Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| #ifndef _UAPI_MD_U_H | ||
| #define _UAPI_MD_U_H | ||
|
|
||
| /* | ||
| * Different major versions are not compatible. | ||
| * Different minor versions are only downward compatible. | ||
| * Different patchlevel versions are downward and upward compatible. | ||
| */ | ||
| #define MD_MAJOR_VERSION 0 | ||
| #define MD_MINOR_VERSION 90 | ||
| /* | ||
| * MD_PATCHLEVEL_VERSION indicates kernel functionality. | ||
| * >=1 means different superblock formats are selectable using SET_ARRAY_INFO | ||
| * and major_version/minor_version accordingly | ||
| * >=2 means that Internal bitmaps are supported by setting MD_SB_BITMAP_PRESENT | ||
| * in the super status byte | ||
| * >=3 means that bitmap superblock version 4 is supported, which uses | ||
| * little-ending representation rather than host-endian | ||
| */ | ||
| #define MD_PATCHLEVEL_VERSION 3 | ||
|
|
||
| /* ioctls */ | ||
|
|
||
| /* status */ | ||
| #define RAID_VERSION _IOR (MD_MAJOR, 0x10, mdu_version_t) | ||
| #define GET_ARRAY_INFO _IOR (MD_MAJOR, 0x11, mdu_array_info_t) | ||
| #define GET_DISK_INFO _IOR (MD_MAJOR, 0x12, mdu_disk_info_t) | ||
| #define PRINT_RAID_DEBUG _IO (MD_MAJOR, 0x13) | ||
| #define RAID_AUTORUN _IO (MD_MAJOR, 0x14) | ||
| #define GET_BITMAP_FILE _IOR (MD_MAJOR, 0x15, mdu_bitmap_file_t) | ||
|
|
||
| /* configuration */ | ||
| #define CLEAR_ARRAY _IO (MD_MAJOR, 0x20) | ||
| #define ADD_NEW_DISK _IOW (MD_MAJOR, 0x21, mdu_disk_info_t) | ||
| #define HOT_REMOVE_DISK _IO (MD_MAJOR, 0x22) | ||
| #define SET_ARRAY_INFO _IOW (MD_MAJOR, 0x23, mdu_array_info_t) | ||
| #define SET_DISK_INFO _IO (MD_MAJOR, 0x24) | ||
| #define WRITE_RAID_INFO _IO (MD_MAJOR, 0x25) | ||
| #define UNPROTECT_ARRAY _IO (MD_MAJOR, 0x26) | ||
| #define PROTECT_ARRAY _IO (MD_MAJOR, 0x27) | ||
| #define HOT_ADD_DISK _IO (MD_MAJOR, 0x28) | ||
| #define SET_DISK_FAULTY _IO (MD_MAJOR, 0x29) | ||
| #define HOT_GENERATE_ERROR _IO (MD_MAJOR, 0x2a) | ||
| #define SET_BITMAP_FILE _IOW (MD_MAJOR, 0x2b, int) | ||
|
|
||
| /* usage */ | ||
| #define RUN_ARRAY _IOW (MD_MAJOR, 0x30, mdu_param_t) | ||
| /* 0x31 was START_ARRAY */ | ||
| #define STOP_ARRAY _IO (MD_MAJOR, 0x32) | ||
| #define STOP_ARRAY_RO _IO (MD_MAJOR, 0x33) | ||
| #define RESTART_ARRAY_RW _IO (MD_MAJOR, 0x34) | ||
|
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||
| /* 63 partitions with the alternate major number (mdp) */ | ||
| #define MdpMinorShift 6 | ||
|
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||
| typedef struct mdu_version_s { | ||
| int major; | ||
| int minor; | ||
| int patchlevel; | ||
| } mdu_version_t; | ||
|
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| typedef struct mdu_array_info_s { | ||
| /* | ||
| * Generic constant information | ||
| */ | ||
| int major_version; | ||
| int minor_version; | ||
| int patch_version; | ||
| int ctime; | ||
| int level; | ||
| int size; | ||
| int nr_disks; | ||
| int raid_disks; | ||
| int md_minor; | ||
| int not_persistent; | ||
|
|
||
| /* | ||
| * Generic state information | ||
| */ | ||
| int utime; /* 0 Superblock update time */ | ||
| int state; /* 1 State bits (clean, ...) */ | ||
| int active_disks; /* 2 Number of currently active disks */ | ||
| int working_disks; /* 3 Number of working disks */ | ||
| int failed_disks; /* 4 Number of failed disks */ | ||
| int spare_disks; /* 5 Number of spare disks */ | ||
|
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| /* | ||
| * Personality information | ||
| */ | ||
| int layout; /* 0 the array's physical layout */ | ||
| int chunk_size; /* 1 chunk size in bytes */ | ||
|
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| } mdu_array_info_t; | ||
|
|
||
| /* non-obvious values for 'level' */ | ||
| #define LEVEL_MULTIPATH (-4) | ||
| #define LEVEL_LINEAR (-1) | ||
| #define LEVEL_FAULTY (-5) | ||
|
|
||
| /* we need a value for 'no level specified' and 0 | ||
| * means 'raid0', so we need something else. This is | ||
| * for internal use only | ||
| */ | ||
| #define LEVEL_NONE (-1000000) | ||
|
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| typedef struct mdu_disk_info_s { | ||
| /* | ||
| * configuration/status of one particular disk | ||
| */ | ||
| int number; | ||
| int major; | ||
| int minor; | ||
| int raid_disk; | ||
| int state; | ||
|
|
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| } mdu_disk_info_t; | ||
|
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| typedef struct mdu_start_info_s { | ||
| /* | ||
| * configuration/status of one particular disk | ||
| */ | ||
| int major; | ||
| int minor; | ||
| int raid_disk; | ||
| int state; | ||
|
|
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| } mdu_start_info_t; | ||
|
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| typedef struct mdu_bitmap_file_s | ||
| { | ||
| char pathname[4096]; | ||
| } mdu_bitmap_file_t; | ||
|
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| typedef struct mdu_param_s | ||
| { | ||
| int personality; /* 1,2,3,4 */ | ||
| int chunk_size; /* in bytes */ | ||
| int max_fault; /* unused for now */ | ||
| } mdu_param_t; | ||
|
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| #endif /* _UAPI_MD_U_H */ |