| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** 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. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #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[0]; |
| }; |
| #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 |
