int dp_upcall(struct datapath *, struct sk_buff *,
const struct dp_upcall_info *);
-struct datapath *get_dp(int dp_idx);
const char *dp_name(const struct datapath *dp);
struct sk_buff *ovs_vport_cmd_build_info(struct vport *, u32 pid, u32 seq,
u8 cmd);