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