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34 #ifndef _VHOST_NET_CDEV_H_
35 #define _VHOST_NET_CDEV_H_
38 #include <sys/types.h>
40 #include <linux/vhost.h>
44 /* Macros for printing using RTE_LOG */
45 #define RTE_LOGTYPE_VHOST_CONFIG RTE_LOGTYPE_USER1
46 #define RTE_LOGTYPE_VHOST_DATA RTE_LOGTYPE_USER1
48 #ifdef RTE_LIBRTE_VHOST_DEBUG
49 #define VHOST_MAX_PRINT_BUFF 6072
50 #define LOG_LEVEL RTE_LOG_DEBUG
51 #define LOG_DEBUG(log_type, fmt, args...) RTE_LOG(DEBUG, log_type, fmt, ##args)
52 #define PRINT_PACKET(device, addr, size, header) do { \
53 char *pkt_addr = (char *)(addr); \
55 char packet[VHOST_MAX_PRINT_BUFF]; \
58 snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%"PRIu64") Header size %d: ", (device->device_fh), (size)); \
60 snprintf(packet, VHOST_MAX_PRINT_BUFF, "(%"PRIu64") Packet size %d: ", (device->device_fh), (size)); \
61 for (index = 0; index < (size); index++) { \
62 snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), \
63 "%02hhx ", pkt_addr[index]); \
65 snprintf(packet + strnlen(packet, VHOST_MAX_PRINT_BUFF), VHOST_MAX_PRINT_BUFF - strnlen(packet, VHOST_MAX_PRINT_BUFF), "\n"); \
67 LOG_DEBUG(VHOST_DATA, "%s", packet); \
70 #define LOG_LEVEL RTE_LOG_INFO
71 #define LOG_DEBUG(log_type, fmt, args...) do {} while (0)
72 #define PRINT_PACKET(device, addr, size, header) do {} while (0)
77 * Structure used to identify device context.
79 struct vhost_device_ctx {
80 pid_t pid; /* PID of process calling the IOCTL. */
81 uint64_t fh; /* Populated with fi->fh to track the device index. */
85 * Structure contains function pointers to be defined in virtio-net.c. These
86 * functions are called in CUSE context and are used to configure devices.
88 struct vhost_net_device_ops {
89 int (*new_device)(struct vhost_device_ctx);
90 void (*destroy_device)(struct vhost_device_ctx);
92 int (*get_features)(struct vhost_device_ctx, uint64_t *);
93 int (*set_features)(struct vhost_device_ctx, uint64_t *);
95 int (*set_mem_table)(struct vhost_device_ctx, const void *, uint32_t);
97 int (*set_vring_num)(struct vhost_device_ctx, struct vhost_vring_state *);
98 int (*set_vring_addr)(struct vhost_device_ctx, struct vhost_vring_addr *);
99 int (*set_vring_base)(struct vhost_device_ctx, struct vhost_vring_state *);
100 int (*get_vring_base)(struct vhost_device_ctx, uint32_t, struct vhost_vring_state *);
102 int (*set_vring_kick)(struct vhost_device_ctx, struct vhost_vring_file *);
103 int (*set_vring_call)(struct vhost_device_ctx, struct vhost_vring_file *);
105 int (*set_backend)(struct vhost_device_ctx, struct vhost_vring_file *);
107 int (*set_owner)(struct vhost_device_ctx);
108 int (*reset_owner)(struct vhost_device_ctx);
112 struct vhost_net_device_ops const *get_virtio_net_callbacks(void);
113 #endif /* _VHOST_NET_CDEV_H_ */