1 /* 2 * Some flags are not defined in <linux/nbd.h>, but are passed anyway. 3 * These flags are sent from nbd-server to the client, and the client 4 * passes them to the kernel unmodified after parsing. Both the client 5 * and the kernel ignore flags unknown to them. 6 */ 7 8 /* The server supports flags */ 9 NBD_FLAG_HAS_FLAGS (1 << 0) 10 /* The export is read-only */ 11 NBD_FLAG_READ_ONLY (1 << 1) 12 /* The server supports NBD_CMD_FLUSH */ 13 NBD_FLAG_SEND_FLUSH (1 << 2) 14 /* The server supports NBD_CMD_FLAG_FUA (Force Unit Access) */ 15 NBD_FLAG_SEND_FUA (1 << 3) 16 /* The export is a rotational medium */ 17 NBD_FLAG_ROTATIONAL (1 << 4) 18 /* The server supports NBD_CMD_TRIM */ 19 NBD_FLAG_SEND_TRIM (1 << 5) 20 /* The server supports NBD_CMD_WRITE_ZEROES and NBD_CMD_FLAG_NO_HOLE */ 21 NBD_FLAG_SEND_WRITE_ZEROES (1 << 6) 22 /* The server supports NBD_CMD_FLAG_DF (don't fragment replies) */ 23 NBD_FLAG_SEND_DF (1 << 7) 24 /* The server supports multiple connections */ 25 NBD_FLAG_CAN_MULTI_CONN (1 << 8) 26 /* The server supports NBD_CMD_RESIZE (resizing the device) */ 27 NBD_FLAG_SEND_RESIZE (1 << 9) 28 /* The server supports NBD_CMD_CACHE */ 29 NBD_FLAG_SEND_CACHE (1 << 10) 30
