diff options
Diffstat (limited to 'md_p.h')
| -rw-r--r-- | md_p.h | 71 |
1 files changed, 71 insertions, 0 deletions
@@ -78,6 +78,12 @@ #define MD_DISK_ACTIVE 1 /* disk is running but may not be in sync */ #define MD_DISK_SYNC 2 /* disk is in sync with the raid set */ #define MD_DISK_REMOVED 3 /* disk is in sync with the raid set */ +#define MD_DISK_CLUSTER_ADD 4 /* Initiate a disk add across the cluster + * For clustered enviroments only. + */ +#define MD_DISK_CANDIDATE 5 /* disk is added as spare (local) until confirmed + * For clustered enviroments only. + */ #define MD_DISK_WRITEMOSTLY 9 /* disk is "write-mostly" is RAID1 config. * read requests will only be sent here in @@ -85,6 +91,12 @@ */ #define MD_DISK_REPLACEMENT 17 +#define MD_DISK_JOURNAL 18 /* disk is used as the write journal in RAID-5/6 */ + +#define MD_DISK_ROLE_SPARE 0xffff +#define MD_DISK_ROLE_FAULTY 0xfffe +#define MD_DISK_ROLE_JOURNAL 0xfffd +#define MD_DISK_ROLE_MAX 0xff00 /* max value of regular disk role */ typedef struct mdp_device_descriptor_s { __u32 number; /* 0 Device number in the entire set */ @@ -106,6 +118,7 @@ typedef struct mdp_device_descriptor_s { #define MD_SB_BLOCK_CONTAINER_RESHAPE 3 /* block container wide reshapes */ #define MD_SB_BLOCK_VOLUME 4 /* block activation of array, other arrays * in container can be activated */ +#define MD_SB_CLUSTERED 5 /* MD is clustered */ #define MD_SB_BITMAP_PRESENT 8 /* bitmap may be present nearby */ typedef struct mdp_superblock_s { @@ -195,4 +208,62 @@ static inline __u64 md_event(mdp_super_t *sb) { return (ev<<32)| sb->events_lo; } +struct r5l_payload_header { + __u16 type; + __u16 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; + __u32 size; /* sector. data/parity size. each 4k has a checksum */ + __u64 location; /* sector. For data, it's raid sector. For + parity, it's stripe sector */ + __u32 checksum[]; +} __attribute__ ((__packed__)); + +enum r5l_payload_data_parity_flag { + R5LOG_PAYLOAD_FLAG_DISCARD = 1, /* payload is discard */ + /* + * RESHAPED/RESHAPING is only set when there is reshape activity. Note, + * both data/parity of a stripe should have the same flag set + * + * RESHAPED: reshape is running, and this stripe finished reshape + * RESHAPING: reshape is running, and this stripe isn't reshaped + * */ + R5LOG_PAYLOAD_FLAG_RESHAPED = 2, + R5LOG_PAYLOAD_FLAG_RESHAPING = 3, +}; + +struct r5l_payload_flush { + struct r5l_payload_header header; + __u32 size; /* flush_stripes size, bytes */ + __u64 flush_stripes[]; +} __attribute__ ((__packed__)); + +enum r5l_payload_flush_flag { + R5LOG_PAYLOAD_FLAG_FLUSH_STRIPE = 1, /* data represents whole stripe */ +}; + +struct r5l_meta_block { + __u32 magic; + __u32 checksum; + __u8 version; + __u8 __zero_pading_1; + __u16 __zero_pading_2; + __u32 meta_size; /* whole size of the block */ + + __u64 seq; + __u64 position; /* sector, start from rdev->data_offset, current position */ + struct r5l_payload_header payloads[]; +} __attribute__ ((__packed__)); + +#define R5LOG_VERSION 0x1 +#define R5LOG_MAGIC 0x6433c509 + #endif |