+uint32_t odp_flow_key_hash(const struct nlattr *, size_t);
+
+/* How well a kernel-provided flow key (a sequence of OVS_KEY_ATTR_*
+ * attributes) matches OVS userspace expectations.
+ *
+ * These values are arranged so that greater values are "more important" than
+ * lesser ones. In particular, a single flow key can fit the descriptions for
+ * both ODP_FIT_TOO_LITTLE and ODP_FIT_TOO_MUCH. Such a key is treated as
+ * ODP_FIT_TOO_LITTLE. */
+enum odp_key_fitness {
+ ODP_FIT_PERFECT, /* The key had exactly the fields we expect. */
+ ODP_FIT_TOO_MUCH, /* The key had fields we don't understand. */
+ ODP_FIT_TOO_LITTLE, /* The key lacked fields we expected to see. */
+ ODP_FIT_ERROR, /* The key was invalid. */
+};
+enum odp_key_fitness odp_flow_key_to_flow(const struct nlattr *, size_t,
+ struct flow *);
+const char *odp_key_fitness_to_string(enum odp_key_fitness);
+
+enum user_action_cookie_type {
+ USER_ACTION_COOKIE_UNSPEC,
+ USER_ACTION_COOKIE_SFLOW, /* Packet for sFlow sampling. */
+};
+
+/* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE.
+ * Since is it passed to kernel as u64, its size has to be 8 bytes. */
+struct user_action_cookie {
+ uint8_t type; /* enum user_action_cookie_type. */
+ uint8_t n_output; /* No of output ports. used by sflow. */
+ ovs_be16 vlan_tci; /* Used by sFlow */
+ uint32_t data; /* Data is len for OFPP_CONTROLLER action.
+ For sFlow it is port_ifindex. */
+};
+
+BUILD_ASSERT_DECL(sizeof(struct user_action_cookie) == 8);
+
+size_t odp_put_userspace_action(uint32_t pid,
+ const struct user_action_cookie *,
+ struct ofpbuf *odp_actions);
+
+void commit_odp_actions(const struct flow *, struct flow *base,
+ struct ofpbuf *odp_actions);