136 lines
3.5 KiB
C
136 lines
3.5 KiB
C
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/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _MD_P_H
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#define _MD_P_H
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#define MD_RESERVED_BYTES (64 * 1024)
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#define MD_RESERVED_SECTORS (MD_RESERVED_BYTES / 512)
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#define MD_RESERVED_BLOCKS (MD_RESERVED_BYTES / BLOCK_SIZE)
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#define MD_NEW_SIZE_SECTORS(x) ((x & ~(MD_RESERVED_SECTORS - 1)) - MD_RESERVED_SECTORS)
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#define MD_NEW_SIZE_BLOCKS(x) ((x & ~(MD_RESERVED_BLOCKS - 1)) - MD_RESERVED_BLOCKS)
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#define MD_SB_BYTES 4096
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#define MD_SB_WORDS (MD_SB_BYTES / 4)
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#define MD_SB_BLOCKS (MD_SB_BYTES / BLOCK_SIZE)
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#define MD_SB_SECTORS (MD_SB_BYTES / 512)
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#define MD_SB_GENERIC_OFFSET 0
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#define MD_SB_PERSONALITY_OFFSET 64
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#define MD_SB_DISKS_OFFSET 128
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#define MD_SB_DESCRIPTOR_OFFSET 992
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#define MD_SB_GENERIC_CONSTANT_WORDS 32
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#define MD_SB_GENERIC_STATE_WORDS 32
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#define MD_SB_GENERIC_WORDS (MD_SB_GENERIC_CONSTANT_WORDS + MD_SB_GENERIC_STATE_WORDS)
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#define MD_SB_PERSONALITY_WORDS 64
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#define MD_SB_DESCRIPTOR_WORDS 32
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#define MD_SB_DISKS 27
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#define MD_SB_DISKS_WORDS (MD_SB_DISKS*MD_SB_DESCRIPTOR_WORDS)
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#define MD_SB_RESERVED_WORDS (1024 - MD_SB_GENERIC_WORDS - MD_SB_PERSONALITY_WORDS - MD_SB_DISKS_WORDS - MD_SB_DESCRIPTOR_WORDS)
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#define MD_SB_EQUAL_WORDS (MD_SB_GENERIC_WORDS + MD_SB_PERSONALITY_WORDS + MD_SB_DISKS_WORDS)
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#define MD_DISK_FAULTY 0
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#define MD_DISK_ACTIVE 1
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#define MD_DISK_SYNC 2
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#define MD_DISK_REMOVED 3
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#define MD_DISK_WRITEMOSTLY 9
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typedef struct mdp_device_descriptor_s {
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__u32 number;
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__u32 major;
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__u32 minor;
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__u32 raid_disk;
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__u32 state;
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__u32 reserved[MD_SB_DESCRIPTOR_WORDS - 5];
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} mdp_disk_t;
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#define MD_SB_MAGIC 0xa92b4efc
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#define MD_SB_CLEAN 0
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#define MD_SB_ERRORS 1
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#define MD_SB_BITMAP_PRESENT 8
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typedef struct mdp_superblock_s {
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__u32 md_magic;
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__u32 major_version;
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__u32 minor_version;
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__u32 patch_version;
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__u32 gvalid_words;
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__u32 set_uuid0;
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__u32 ctime;
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__u32 level;
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__u32 size;
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__u32 nr_disks;
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__u32 raid_disks;
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__u32 md_minor;
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__u32 not_persistent;
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__u32 set_uuid1;
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__u32 set_uuid2;
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__u32 set_uuid3;
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__u32 gstate_creserved[MD_SB_GENERIC_CONSTANT_WORDS - 16];
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__u32 utime;
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__u32 state;
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__u32 active_disks;
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__u32 working_disks;
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__u32 failed_disks;
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__u32 spare_disks;
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__u32 sb_csum;
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#ifdef __BIG_ENDIAN
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__u32 events_hi;
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__u32 events_lo;
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__u32 cp_events_hi;
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__u32 cp_events_lo;
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#else
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__u32 events_lo;
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__u32 events_hi;
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__u32 cp_events_lo;
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__u32 cp_events_hi;
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#endif
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__u32 recovery_cp;
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__u64 reshape_position;
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__u32 new_level;
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__u32 delta_disks;
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__u32 new_layout;
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__u32 new_chunk;
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__u32 gstate_sreserved[MD_SB_GENERIC_STATE_WORDS - 18];
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__u32 layout;
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__u32 chunk_size;
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__u32 root_pv;
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__u32 root_block;
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__u32 pstate_reserved[MD_SB_PERSONALITY_WORDS - 4];
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mdp_disk_t disks[MD_SB_DISKS];
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__u32 reserved[MD_SB_RESERVED_WORDS];
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mdp_disk_t this_disk;
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} mdp_super_t;
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#define WriteMostly1 1
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#define MD_FEATURE_BITMAP_OFFSET 1
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#define MD_FEATURE_RECOVERY_OFFSET 2
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#define MD_FEATURE_RESHAPE_ACTIVE 4
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#define MD_FEATURE_ALL (1|2|4)
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#endif
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