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34 #ifndef _VHOST_NET_CDEV_H_
35 #define _VHOST_NET_CDEV_H_
37 #include <linux/vhost.h>
40 struct vhost_vring_state;
41 struct vhost_vring_addr;
42 struct vhost_vring_file;
45 * Structure used to identify device context.
47 struct vhost_device_ctx
49 pid_t pid; /* PID of process calling the IOCTL. */
50 uint64_t fh; /* Populated with fi->fh to track the device index. */
54 * Structure contains function pointers to be defined in virtio-net.c. These
55 * functions are called in CUSE context and are used to configure devices.
57 struct vhost_net_device_ops {
58 int (* new_device) (struct vhost_device_ctx);
59 void (* destroy_device) (struct vhost_device_ctx);
61 int (* get_features) (struct vhost_device_ctx, uint64_t *);
62 int (* set_features) (struct vhost_device_ctx, uint64_t *);
64 int (* set_mem_table) (struct vhost_device_ctx, const void *, uint32_t);
66 int (* set_vring_num) (struct vhost_device_ctx, struct vhost_vring_state *);
67 int (* set_vring_addr) (struct vhost_device_ctx, struct vhost_vring_addr *);
68 int (* set_vring_base) (struct vhost_device_ctx, struct vhost_vring_state *);
69 int (* get_vring_base) (struct vhost_device_ctx, uint32_t, struct vhost_vring_state *);
71 int (* set_vring_kick) (struct vhost_device_ctx, struct vhost_vring_file *);
72 int (* set_vring_call) (struct vhost_device_ctx, struct vhost_vring_file *);
74 int (* set_backend) (struct vhost_device_ctx, struct vhost_vring_file *);
76 int (* set_owner) (struct vhost_device_ctx);
77 int (* reset_owner) (struct vhost_device_ctx);
80 int register_cuse_device(const char *base_name, int index, struct vhost_net_device_ops const * const);
81 int start_cuse_session_loop(void);
83 #endif /* _VHOST_NET_CDEV_H_ */