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4
5#ifndef _VHOST_NET_USER_H
6#define _VHOST_NET_USER_H
7
8#include <stdint.h>
9
10#include "rte_vhost.h"
11
12
13
14#define VHOST_MEMORY_MAX_NREGIONS 8
15
16#define VHOST_USER_PROTOCOL_FEATURES ((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
17 (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
18 (1ULL << VHOST_USER_PROTOCOL_F_RARP) | \
19 (1ULL << VHOST_USER_PROTOCOL_F_REPLY_ACK) | \
20 (1ULL << VHOST_USER_PROTOCOL_F_NET_MTU) | \
21 (1ULL << VHOST_USER_PROTOCOL_F_SLAVE_REQ) | \
22 (1ULL << VHOST_USER_PROTOCOL_F_CRYPTO_SESSION) | \
23 (1ULL << VHOST_USER_PROTOCOL_F_SLAVE_SEND_FD) | \
24 (1ULL << VHOST_USER_PROTOCOL_F_HOST_NOTIFIER) | \
25 (1ULL << VHOST_USER_PROTOCOL_F_PAGEFAULT) | \
26 (1ULL << VHOST_USER_PROTOCOL_F_STATUS))
27
28typedef enum VhostUserRequest {
29 VHOST_USER_NONE = 0,
30 VHOST_USER_GET_FEATURES = 1,
31 VHOST_USER_SET_FEATURES = 2,
32 VHOST_USER_SET_OWNER = 3,
33 VHOST_USER_RESET_OWNER = 4,
34 VHOST_USER_SET_MEM_TABLE = 5,
35 VHOST_USER_SET_LOG_BASE = 6,
36 VHOST_USER_SET_LOG_FD = 7,
37 VHOST_USER_SET_VRING_NUM = 8,
38 VHOST_USER_SET_VRING_ADDR = 9,
39 VHOST_USER_SET_VRING_BASE = 10,
40 VHOST_USER_GET_VRING_BASE = 11,
41 VHOST_USER_SET_VRING_KICK = 12,
42 VHOST_USER_SET_VRING_CALL = 13,
43 VHOST_USER_SET_VRING_ERR = 14,
44 VHOST_USER_GET_PROTOCOL_FEATURES = 15,
45 VHOST_USER_SET_PROTOCOL_FEATURES = 16,
46 VHOST_USER_GET_QUEUE_NUM = 17,
47 VHOST_USER_SET_VRING_ENABLE = 18,
48 VHOST_USER_SEND_RARP = 19,
49 VHOST_USER_NET_SET_MTU = 20,
50 VHOST_USER_SET_SLAVE_REQ_FD = 21,
51 VHOST_USER_IOTLB_MSG = 22,
52 VHOST_USER_GET_CONFIG = 24,
53 VHOST_USER_SET_CONFIG = 25,
54 VHOST_USER_CRYPTO_CREATE_SESS = 26,
55 VHOST_USER_CRYPTO_CLOSE_SESS = 27,
56 VHOST_USER_POSTCOPY_ADVISE = 28,
57 VHOST_USER_POSTCOPY_LISTEN = 29,
58 VHOST_USER_POSTCOPY_END = 30,
59 VHOST_USER_GET_INFLIGHT_FD = 31,
60 VHOST_USER_SET_INFLIGHT_FD = 32,
61 VHOST_USER_SET_STATUS = 39,
62 VHOST_USER_GET_STATUS = 40,
63} VhostUserRequest;
64
65typedef enum VhostUserSlaveRequest {
66 VHOST_USER_SLAVE_NONE = 0,
67 VHOST_USER_SLAVE_IOTLB_MSG = 1,
68 VHOST_USER_SLAVE_CONFIG_CHANGE_MSG = 2,
69 VHOST_USER_SLAVE_VRING_HOST_NOTIFIER_MSG = 3,
70} VhostUserSlaveRequest;
71
72typedef struct VhostUserMemoryRegion {
73 uint64_t guest_phys_addr;
74 uint64_t memory_size;
75 uint64_t userspace_addr;
76 uint64_t mmap_offset;
77} VhostUserMemoryRegion;
78
79typedef struct VhostUserMemory {
80 uint32_t nregions;
81 uint32_t padding;
82 VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
83} VhostUserMemory;
84
85typedef struct VhostUserLog {
86 uint64_t mmap_size;
87 uint64_t mmap_offset;
88} VhostUserLog;
89
90
91#define VHOST_USER_CRYPTO_MAX_HMAC_KEY_LENGTH 512
92#define VHOST_USER_CRYPTO_MAX_CIPHER_KEY_LENGTH 64
93
94
95typedef struct VhostUserCryptoSessionParam {
96 int64_t session_id;
97 uint32_t op_code;
98 uint32_t cipher_algo;
99 uint32_t cipher_key_len;
100 uint32_t hash_algo;
101 uint32_t digest_len;
102 uint32_t auth_key_len;
103 uint32_t aad_len;
104 uint8_t op_type;
105 uint8_t dir;
106 uint8_t hash_mode;
107 uint8_t chaining_dir;
108 uint8_t *ciphe_key;
109 uint8_t *auth_key;
110 uint8_t cipher_key_buf[VHOST_USER_CRYPTO_MAX_CIPHER_KEY_LENGTH];
111 uint8_t auth_key_buf[VHOST_USER_CRYPTO_MAX_HMAC_KEY_LENGTH];
112} VhostUserCryptoSessionParam;
113
114typedef struct VhostUserVringArea {
115 uint64_t u64;
116 uint64_t size;
117 uint64_t offset;
118} VhostUserVringArea;
119
120typedef struct VhostUserInflight {
121 uint64_t mmap_size;
122 uint64_t mmap_offset;
123 uint16_t num_queues;
124 uint16_t queue_size;
125} VhostUserInflight;
126
127#define VHOST_USER_MAX_CONFIG_SIZE 256
128
129
130struct vhost_user_config {
131 uint32_t offset;
132 uint32_t size;
133 uint32_t flags;
134 uint8_t region[VHOST_USER_MAX_CONFIG_SIZE];
135};
136
137typedef struct VhostUserMsg {
138 union {
139 uint32_t master;
140 uint32_t slave;
141 } request;
142
143#define VHOST_USER_VERSION_MASK 0x3
144#define VHOST_USER_REPLY_MASK (0x1 << 2)
145#define VHOST_USER_NEED_REPLY (0x1 << 3)
146 uint32_t flags;
147 uint32_t size;
148 union {
149#define VHOST_USER_VRING_IDX_MASK 0xff
150#define VHOST_USER_VRING_NOFD_MASK (0x1<<8)
151 uint64_t u64;
152 struct vhost_vring_state state;
153 struct vhost_vring_addr addr;
154 VhostUserMemory memory;
155 VhostUserLog log;
156 struct vhost_iotlb_msg iotlb;
157 VhostUserCryptoSessionParam crypto_session;
158 VhostUserVringArea area;
159 VhostUserInflight inflight;
160 struct vhost_user_config cfg;
161 } payload;
162
163} __rte_packed VhostUserMsg;
164
165
166
167
168struct __rte_packed vhu_msg_context {
169 VhostUserMsg msg;
170 int fds[VHOST_MEMORY_MAX_NREGIONS];
171 int fd_num;
172};
173
174#define VHOST_USER_HDR_SIZE offsetof(VhostUserMsg, payload.u64)
175
176
177#define VHOST_USER_VERSION 0x1
178
179
180
181int vhost_user_msg_handler(int vid, int fd);
182int vhost_user_iotlb_miss(struct virtio_net *dev, uint64_t iova, uint8_t perm);
183
184
185int read_fd_message(char *ifname, int sockfd, char *buf, int buflen, int *fds, int max_fds,
186 int *fd_num);
187int send_fd_message(char *ifname, int sockfd, char *buf, int buflen, int *fds, int fd_num);
188
189#endif
190
