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/*
* This file is auto-generated. Modifications will be lost.
*
* See https://android.googlesource.com/platform/bionic/+/master/libc/kernel/
* for more information.
*/
#ifndef _MD_P_H
#define _MD_P_H
#include <linux/types.h>
#include <asm/byteorder.h>
#define MD_RESERVED_BYTES (64 * 1024)
#define MD_RESERVED_SECTORS (MD_RESERVED_BYTES / 512)
#define MD_NEW_SIZE_SECTORS(x) ((x & ~(MD_RESERVED_SECTORS - 1)) - MD_RESERVED_SECTORS)
#define MD_SB_BYTES 4096
#define MD_SB_WORDS (MD_SB_BYTES / 4)
#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_CLUSTER_ADD 4
#define MD_DISK_CANDIDATE 5
#define MD_DISK_FAILFAST 10
#define MD_DISK_WRITEMOSTLY 9
#define MD_DISK_JOURNAL 18
#define MD_DISK_ROLE_SPARE 0xffff
#define MD_DISK_ROLE_FAULTY 0xfffe
#define MD_DISK_ROLE_JOURNAL 0xfffd
#define MD_DISK_ROLE_MAX 0xff00
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_CLUSTERED 5
#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;
#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
__u32 events_hi;
__u32 events_lo;
__u32 cp_events_hi;
__u32 cp_events_lo;
#elif defined(__BYTE_ORDER)?__BYTE_ORDER==__LITTLE_ENDIAN:defined(__LITTLE_ENDIAN)
__u32 events_lo;
__u32 events_hi;
__u32 cp_events_lo;
__u32 cp_events_hi;
#else
#error unspecified endianness
#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 MD_SUPERBLOCK_1_TIME_SEC_MASK ((1ULL << 40) - 1)
struct mdp_superblock_1 {
__le32 magic;
__le32 major_version;
__le32 feature_map;
__le32 pad0;
__u8 set_uuid[16];
char set_name[32];
__le64 ctime;
__le32 level;
__le32 layout;
__le64 size;
__le32 chunksize;
__le32 raid_disks;
union {
__le32 bitmap_offset;
struct {
__le16 offset;
__le16 size;
} ppl;
};
__le32 new_level;
__le64 reshape_position;
__le32 delta_disks;
__le32 new_layout;
__le32 new_chunk;
__le32 new_offset;
__le64 data_offset;
__le64 data_size;
__le64 super_offset;
union {
__le64 recovery_offset;
__le64 journal_tail;
};
__le32 dev_number;
__le32 cnt_corrected_read;
__u8 device_uuid[16];
__u8 devflags;
#define WriteMostly1 1
#define FailFast1 2
__u8 bblog_shift;
__le16 bblog_size;
__le32 bblog_offset;
__le64 utime;
__le64 events;
__le64 resync_offset;
__le32 sb_csum;
__le32 max_dev;
__u8 pad3[64 - 32];
__le16 dev_roles[];
};
#define MD_FEATURE_BITMAP_OFFSET 1
#define MD_FEATURE_RECOVERY_OFFSET 2
#define MD_FEATURE_RESHAPE_ACTIVE 4
#define MD_FEATURE_BAD_BLOCKS 8
#define MD_FEATURE_REPLACEMENT 16
#define MD_FEATURE_RESHAPE_BACKWARDS 32
#define MD_FEATURE_NEW_OFFSET 64
#define MD_FEATURE_RECOVERY_BITMAP 128
#define MD_FEATURE_CLUSTERED 256
#define MD_FEATURE_JOURNAL 512
#define MD_FEATURE_PPL 1024
#define MD_FEATURE_MULTIPLE_PPLS 2048
#define MD_FEATURE_RAID0_LAYOUT 4096
#define MD_FEATURE_ALL (MD_FEATURE_BITMAP_OFFSET | MD_FEATURE_RECOVERY_OFFSET | MD_FEATURE_RESHAPE_ACTIVE | MD_FEATURE_BAD_BLOCKS | MD_FEATURE_REPLACEMENT | MD_FEATURE_RESHAPE_BACKWARDS | MD_FEATURE_NEW_OFFSET | MD_FEATURE_RECOVERY_BITMAP | MD_FEATURE_CLUSTERED | MD_FEATURE_JOURNAL | MD_FEATURE_PPL | MD_FEATURE_MULTIPLE_PPLS | MD_FEATURE_RAID0_LAYOUT)
struct r5l_payload_header {
__le16 type;
__le16 flags;
} __attribute__((__packed__));
enum r5l_payload_type {
R5LOG_PAYLOAD_DATA = 0,
R5LOG_PAYLOAD_PARITY = 1,
R5LOG_PAYLOAD_FLUSH = 2,
};
struct r5l_payload_data_parity {
struct r5l_payload_header header;
__le32 size;
__le64 location;
__le32 checksum[];
} __attribute__((__packed__));
enum r5l_payload_data_parity_flag {
R5LOG_PAYLOAD_FLAG_DISCARD = 1,
R5LOG_PAYLOAD_FLAG_RESHAPED = 2,
R5LOG_PAYLOAD_FLAG_RESHAPING = 3,
};
struct r5l_payload_flush {
struct r5l_payload_header header;
__le32 size;
__le64 flush_stripes[];
} __attribute__((__packed__));
enum r5l_payload_flush_flag {
R5LOG_PAYLOAD_FLAG_FLUSH_STRIPE = 1,
};
struct r5l_meta_block {
__le32 magic;
__le32 checksum;
__u8 version;
__u8 __zero_pading_1;
__le16 __zero_pading_2;
__le32 meta_size;
__le64 seq;
__le64 position;
struct r5l_payload_header payloads[];
} __attribute__((__packed__));
#define R5LOG_VERSION 0x1
#define R5LOG_MAGIC 0x6433c509
struct ppl_header_entry {
__le64 data_sector;
__le32 pp_size;
__le32 data_size;
__le32 parity_disk;
__le32 checksum;
} __attribute__((__packed__));
#define PPL_HEADER_SIZE 4096
#define PPL_HDR_RESERVED 512
#define PPL_HDR_ENTRY_SPACE (PPL_HEADER_SIZE - PPL_HDR_RESERVED - 4 * sizeof(__le32) - sizeof(__le64))
#define PPL_HDR_MAX_ENTRIES (PPL_HDR_ENTRY_SPACE / sizeof(struct ppl_header_entry))
struct ppl_header {
__u8 reserved[PPL_HDR_RESERVED];
__le32 signature;
__le32 padding;
__le64 generation;
__le32 entries_count;
__le32 checksum;
struct ppl_header_entry entries[PPL_HDR_MAX_ENTRIES];
} __attribute__((__packed__));
#endif
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