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34 #ifndef _VHOST_NET_USER_H
35 #define _VHOST_NET_USER_H
38 #include <linux/vhost.h>
40 #include "rte_virtio_net.h"
44 char *path; /**< The path the uds is bind to. */
45 int listenfd; /**< The listener sockfd. */
48 /* refer to hw/virtio/vhost-user.c */
50 #define VHOST_MEMORY_MAX_NREGIONS 8
52 typedef enum VhostUserRequest {
54 VHOST_USER_GET_FEATURES = 1,
55 VHOST_USER_SET_FEATURES = 2,
56 VHOST_USER_SET_OWNER = 3,
57 VHOST_USER_RESET_OWNER = 4,
58 VHOST_USER_SET_MEM_TABLE = 5,
59 VHOST_USER_SET_LOG_BASE = 6,
60 VHOST_USER_SET_LOG_FD = 7,
61 VHOST_USER_SET_VRING_NUM = 8,
62 VHOST_USER_SET_VRING_ADDR = 9,
63 VHOST_USER_SET_VRING_BASE = 10,
64 VHOST_USER_GET_VRING_BASE = 11,
65 VHOST_USER_SET_VRING_KICK = 12,
66 VHOST_USER_SET_VRING_CALL = 13,
67 VHOST_USER_SET_VRING_ERR = 14,
68 VHOST_USER_GET_PROTOCOL_FEATURES = 15,
69 VHOST_USER_SET_PROTOCOL_FEATURES = 16,
70 VHOST_USER_GET_QUEUE_NUM = 17,
71 VHOST_USER_SET_VRING_ENABLE = 18,
72 VHOST_USER_SEND_RARP = 19,
76 typedef struct VhostUserMemoryRegion {
77 uint64_t guest_phys_addr;
79 uint64_t userspace_addr;
81 } VhostUserMemoryRegion;
83 typedef struct VhostUserMemory {
86 VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
89 typedef struct VhostUserLog {
94 typedef struct VhostUserMsg {
95 VhostUserRequest request;
97 #define VHOST_USER_VERSION_MASK 0x3
98 #define VHOST_USER_REPLY_MASK (0x1 << 2)
100 uint32_t size; /* the following payload size */
102 #define VHOST_USER_VRING_IDX_MASK 0xff
103 #define VHOST_USER_VRING_NOFD_MASK (0x1<<8)
105 struct vhost_vring_state state;
106 struct vhost_vring_addr addr;
107 VhostUserMemory memory;
110 int fds[VHOST_MEMORY_MAX_NREGIONS];
111 } __attribute((packed)) VhostUserMsg;
113 #define VHOST_USER_HDR_SIZE offsetof(VhostUserMsg, payload.u64)
115 /* The version of the protocol we support */
116 #define VHOST_USER_VERSION 0x1
118 /*****************************************************************************/