diff options
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/nbd.h | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/include/block/nbd.h b/include/block/nbd.h index 6d05983..bb9f5bc 100644 --- a/include/block/nbd.h +++ b/include/block/nbd.h @@ -127,18 +127,32 @@ typedef struct NBDExtent { /* Transmission (export) flags: sent from server to client during handshake, but describe what will happen during transmission */ -#define NBD_FLAG_HAS_FLAGS (1 << 0) /* Flags are there */ -#define NBD_FLAG_READ_ONLY (1 << 1) /* Device is read-only */ -#define NBD_FLAG_SEND_FLUSH (1 << 2) /* Send FLUSH */ -#define NBD_FLAG_SEND_FUA (1 << 3) /* Send FUA (Force Unit Access) */ -#define NBD_FLAG_ROTATIONAL (1 << 4) /* Use elevator algorithm - - rotational media */ -#define NBD_FLAG_SEND_TRIM (1 << 5) /* Send TRIM (discard) */ -#define NBD_FLAG_SEND_WRITE_ZEROES (1 << 6) /* Send WRITE_ZEROES */ -#define NBD_FLAG_SEND_DF (1 << 7) /* Send DF (Do not Fragment) */ -#define NBD_FLAG_CAN_MULTI_CONN (1 << 8) /* Multi-client cache consistent */ -#define NBD_FLAG_SEND_RESIZE (1 << 9) /* Send resize */ -#define NBD_FLAG_SEND_CACHE (1 << 10) /* Send CACHE (prefetch) */ +enum { + NBD_FLAG_HAS_FLAGS_BIT = 0, /* Flags are there */ + NBD_FLAG_READ_ONLY_BIT = 1, /* Device is read-only */ + NBD_FLAG_SEND_FLUSH_BIT = 2, /* Send FLUSH */ + NBD_FLAG_SEND_FUA_BIT = 3, /* Send FUA (Force Unit Access) */ + NBD_FLAG_ROTATIONAL_BIT = 4, /* Use elevator algorithm - + rotational media */ + NBD_FLAG_SEND_TRIM_BIT = 5, /* Send TRIM (discard) */ + NBD_FLAG_SEND_WRITE_ZEROES_BIT = 6, /* Send WRITE_ZEROES */ + NBD_FLAG_SEND_DF_BIT = 7, /* Send DF (Do not Fragment) */ + NBD_FLAG_CAN_MULTI_CONN_BIT = 8, /* Multi-client cache consistent */ + NBD_FLAG_SEND_RESIZE_BIT = 9, /* Send resize */ + NBD_FLAG_SEND_CACHE_BIT = 10, /* Send CACHE (prefetch) */ +}; + +#define NBD_FLAG_HAS_FLAGS (1 << NBD_FLAG_HAS_FLAGS_BIT) +#define NBD_FLAG_READ_ONLY (1 << NBD_FLAG_READ_ONLY_BIT) +#define NBD_FLAG_SEND_FLUSH (1 << NBD_FLAG_SEND_FLUSH_BIT) +#define NBD_FLAG_SEND_FUA (1 << NBD_FLAG_SEND_FUA_BIT) +#define NBD_FLAG_ROTATIONAL (1 << NBD_FLAG_ROTATIONAL_BIT) +#define NBD_FLAG_SEND_TRIM (1 << NBD_FLAG_SEND_TRIM_BIT) +#define NBD_FLAG_SEND_WRITE_ZEROES (1 << NBD_FLAG_SEND_WRITE_ZEROES_BIT) +#define NBD_FLAG_SEND_DF (1 << NBD_FLAG_SEND_DF_BIT) +#define NBD_FLAG_CAN_MULTI_CONN (1 << NBD_FLAG_CAN_MULTI_CONN_BIT) +#define NBD_FLAG_SEND_RESIZE (1 << NBD_FLAG_SEND_RESIZE_BIT) +#define NBD_FLAG_SEND_CACHE (1 << NBD_FLAG_SEND_CACHE_BIT) /* New-style handshake (global) flags, sent from server to client, and control what will happen during handshake phase. */ |