+int odp_flow_from_string(const char *s,
+ const struct simap *port_names,
+ struct ofpbuf *, struct ofpbuf *);
+
+void odp_flow_key_from_flow(struct ofpbuf *, const struct flow * flow,
+ const struct flow *mask, odp_port_t odp_in_port);
+void odp_flow_key_from_mask(struct ofpbuf *, const struct flow *mask,
+ const struct flow *flow, uint32_t odp_in_port,
+ size_t max_mpls_depth);
+
+uint32_t odp_flow_key_hash(const struct nlattr *, size_t);
+
+/* Estimated space needed for metadata. */
+enum { ODP_KEY_METADATA_SIZE = 9 * 8 };
+void odp_key_from_pkt_metadata(struct ofpbuf *, const struct pkt_metadata *);
+void odp_key_to_pkt_metadata(const struct nlattr *key, size_t key_len,
+ struct pkt_metadata *md);
+
+/* 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 *);
+enum odp_key_fitness odp_flow_key_to_mask(const struct nlattr *key, size_t len,
+ struct flow *mask,
+ const struct flow *flow);
+const char *odp_key_fitness_to_string(enum odp_key_fitness);
+
+void commit_odp_tunnel_action(const struct flow *, struct flow *base,
+ struct ofpbuf *odp_actions);
+enum slow_path_reason commit_odp_actions(const struct flow *,
+ struct flow *base,
+ struct ofpbuf *odp_actions,
+ struct flow_wildcards *wc);
+\f
+/* ofproto-dpif interface.
+ *
+ * The following types and functions are logically part of ofproto-dpif.
+ * ofproto-dpif puts values of these types into the flows that it installs in
+ * the kernel datapath, though, so ovs-dpctl needs to interpret them so that
+ * it can print flows in a more human-readable manner. */
+
+enum user_action_cookie_type {
+ USER_ACTION_COOKIE_UNSPEC,
+ USER_ACTION_COOKIE_SFLOW, /* Packet for per-bridge sFlow sampling. */
+ USER_ACTION_COOKIE_SLOW_PATH, /* Userspace must process this flow. */
+ USER_ACTION_COOKIE_FLOW_SAMPLE, /* Packet for per-flow sampling. */
+ USER_ACTION_COOKIE_IPFIX, /* Packet for per-bridge IPFIX sampling. */
+};
+
+/* user_action_cookie is passed as argument to OVS_ACTION_ATTR_USERSPACE.
+ * Since it is passed to kernel as u64, its size has to be 8 bytes. */
+union user_action_cookie {
+ uint16_t type; /* enum user_action_cookie_type. */
+
+ struct {
+ uint16_t type; /* USER_ACTION_COOKIE_SFLOW. */
+ ovs_be16 vlan_tci; /* Destination VLAN TCI. */
+ uint32_t output; /* SFL_FLOW_SAMPLE_TYPE 'output' value. */
+ } sflow;
+
+ struct {
+ uint16_t type; /* USER_ACTION_COOKIE_SLOW_PATH. */
+ uint16_t unused;
+ uint32_t reason; /* enum slow_path_reason. */
+ } slow_path;
+
+ struct {
+ uint16_t type; /* USER_ACTION_COOKIE_FLOW_SAMPLE. */
+ uint16_t probability; /* Sampling probability. */
+ uint32_t collector_set_id; /* ID of IPFIX collector set. */
+ uint32_t obs_domain_id; /* Observation Domain ID. */
+ uint32_t obs_point_id; /* Observation Point ID. */
+ } flow_sample;
+
+ struct {
+ uint16_t type; /* USER_ACTION_COOKIE_IPFIX. */
+ } ipfix;
+};
+BUILD_ASSERT_DECL(sizeof(union user_action_cookie) == 16);