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-rw-r--r--include/block/nbd.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/block/nbd.h b/include/block/nbd.h
index 79502a090b..561b70cc5e 100644
--- a/include/block/nbd.h
+++ b/include/block/nbd.h
@@ -45,6 +45,15 @@ struct nbd_reply {
#define NBD_FLAG_ROTATIONAL (1 << 4) /* Use elevator algorithm - rotational media */
#define NBD_FLAG_SEND_TRIM (1 << 5) /* Send TRIM (discard) */
+/* New-style global flags. */
+#define NBD_FLAG_FIXED_NEWSTYLE (1 << 0) /* Fixed newstyle protocol. */
+
+/* New-style client flags. */
+#define NBD_FLAG_C_FIXED_NEWSTYLE (1 << 0) /* Fixed newstyle protocol. */
+
+/* Reply types. */
+#define NBD_REP_ERR_UNSUP ((1 << 31) | 1) /* Unknown option. */
+
#define NBD_CMD_MASK_COMMAND 0x0000ffff
#define NBD_CMD_FLAG_FUA (1 << 16)