diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/nbd.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/block/nbd.h b/include/block/nbd.h index 7b36d672f0..21550747cf 100644 --- a/include/block/nbd.h +++ b/include/block/nbd.h @@ -140,6 +140,7 @@ enum { 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) */ + NBD_FLAG_SEND_FAST_ZERO_BIT = 11, /* FAST_ZERO flag for WRITE_ZEROES */ }; #define NBD_FLAG_HAS_FLAGS (1 << NBD_FLAG_HAS_FLAGS_BIT) @@ -153,6 +154,7 @@ enum { #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) +#define NBD_FLAG_SEND_FAST_ZERO (1 << NBD_FLAG_SEND_FAST_ZERO_BIT) /* New-style handshake (global) flags, sent from server to client, and control what will happen during handshake phase. */ @@ -205,6 +207,7 @@ enum { #define NBD_CMD_FLAG_DF (1 << 2) /* don't fragment structured read */ #define NBD_CMD_FLAG_REQ_ONE (1 << 3) /* only one extent in BLOCK_STATUS * reply chunk */ +#define NBD_CMD_FLAG_FAST_ZERO (1 << 4) /* fail if WRITE_ZEROES is not fast */ /* Supported request types */ enum { @@ -270,6 +273,7 @@ static inline bool nbd_reply_type_is_error(int type) #define NBD_EINVAL 22 #define NBD_ENOSPC 28 #define NBD_EOVERFLOW 75 +#define NBD_ENOTSUP 95 #define NBD_ESHUTDOWN 108 /* Details collected by NBD_OPT_EXPORT_NAME and NBD_OPT_GO */ @@ -326,7 +330,7 @@ typedef struct NBDClient NBDClient; NBDExport *nbd_export_new(BlockDriverState *bs, uint64_t dev_offset, uint64_t size, const char *name, const char *desc, - const char *bitmap, uint16_t nbdflags, + const char *bitmap, bool readonly, bool shared, void (*close)(NBDExport *), bool writethrough, BlockBackend *on_eject_blk, Error **errp); void nbd_export_close(NBDExport *exp); |