1 files changed, 18 insertions, 7 deletions

diff --git a/lib/librte_vhost/vhost_user.h b/lib/librte_vhost/vhost_user.h
index 35ebd719..76d9fe2f 100644
--- a/lib/librte_vhost/vhost_user.h
+++ b/lib/librte_vhost/vhost_user.h
@@ -48,16 +48,14 @@
 #define VHOST_USER_PROTOCOL_F_RARP	2
 #define VHOST_USER_PROTOCOL_F_REPLY_ACK	3
 #define VHOST_USER_PROTOCOL_F_NET_MTU 4
+#define VHOST_USER_PROTOCOL_F_SLAVE_REQ 5
 
-/*
- * disable REPLY_ACK feature to workaround the buggy QEMU implementation.
- * Proved buggy QEMU includes v2.7 - v2.9.
- */
 #define VHOST_USER_PROTOCOL_FEATURES	((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
 					 (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
 					 (1ULL << VHOST_USER_PROTOCOL_F_RARP) | \
-					 (0ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
-					 (1ULL << VHOST_USER_PROTOCOL_F_NET_MTU))
+					 (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
+					 (1ULL << VHOST_USER_PROTOCOL_F_NET_MTU) | \
+					 (1ULL << VHOST_USER_PROTOCOL_F_SLAVE_REQ))
 
 typedef enum VhostUserRequest {
 	VHOST_USER_NONE = 0,
@@ -81,9 +79,17 @@ typedef enum VhostUserRequest {
 	VHOST_USER_SET_VRING_ENABLE = 18,
 	VHOST_USER_SEND_RARP = 19,
 	VHOST_USER_NET_SET_MTU = 20,
+	VHOST_USER_SET_SLAVE_REQ_FD = 21,
+	VHOST_USER_IOTLB_MSG = 22,
 	VHOST_USER_MAX
 } VhostUserRequest;
 
+typedef enum VhostUserSlaveRequest {
+	VHOST_USER_SLAVE_NONE = 0,
+	VHOST_USER_SLAVE_IOTLB_MSG = 1,
+	VHOST_USER_SLAVE_MAX
+} VhostUserSlaveRequest;
+
 typedef struct VhostUserMemoryRegion {
 	uint64_t guest_phys_addr;
 	uint64_t memory_size;
@@ -103,7 +109,10 @@ typedef struct VhostUserLog {
 } VhostUserLog;
 
 typedef struct VhostUserMsg {
-	VhostUserRequest request;
+	union {
+		VhostUserRequest master;
+		VhostUserSlaveRequest slave;
+	} request;
 
 #define VHOST_USER_VERSION_MASK     0x3
 #define VHOST_USER_REPLY_MASK       (0x1 << 2)
@@ -118,6 +127,7 @@ typedef struct VhostUserMsg {
 		struct vhost_vring_addr addr;
 		VhostUserMemory memory;
 		VhostUserLog    log;
+		struct vhost_iotlb_msg iotlb;
 	} payload;
 	int fds[VHOST_MEMORY_MAX_NREGIONS];
 } __attribute((packed)) VhostUserMsg;
@@ -130,6 +140,7 @@ typedef struct VhostUserMsg {
 
 /* vhost_user.c */
 int vhost_user_msg_handler(int vid, int fd);
+int vhost_user_iotlb_miss(struct virtio_net *dev, uint64_t iova, uint8_t perm);
 
 /* socket.c */
 int read_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num);