+ /* If true, it means that the datapath supports the NAT bits in
+ * 'ct_state'. The above 'ct_state' member must be true for this
+ * to make sense */
+ bool ct_state_nat;
+};
+
+struct odp_flow_key_parms {
+ /* The flow and mask to be serialized. In the case of masks, 'flow'
+ * is used as a template to determine how to interpret 'mask'. For
+ * example, the 'dl_type' of 'mask' describes the mask, but it doesn't
+ * indicate whether the other fields should be interpreted as ARP, IPv4,
+ * IPv6, etc. */
+ const struct flow *flow;
+ const struct flow *mask;
+
+ /* 'flow->in_port' is ignored (since it is likely to be an OpenFlow port
+ * number rather than a datapath port number). Instead, if 'odp_in_port'
+ * is anything other than ODPP_NONE, it is included in 'buf' as the input
+ * port. */
+ odp_port_t odp_in_port;
+
+ /* Indicates support for various fields. If the datapath supports a field,
+ * then it will always be serialised. */
+ struct odp_support support;
+
+ /* The netlink formatted version of the flow. It is used in cases where
+ * the mask cannot be constructed from the OVS internal representation
+ * and needs to see the original form. */
+ const struct ofpbuf *key_buf;
+};
+
+void odp_flow_key_from_flow(const struct odp_flow_key_parms *, struct ofpbuf *);
+void odp_flow_key_from_mask(const struct odp_flow_key_parms *, struct ofpbuf *);
+
+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 *mask_key,
+ size_t mask_key_len,
+ const struct nlattr *flow_key,
+ size_t flow_key_len,
+ struct flow_wildcards *mask,
+ const struct flow *flow);
+
+enum odp_key_fitness odp_flow_key_to_flow_udpif(const struct nlattr *, size_t,
+ struct flow *);
+enum odp_key_fitness odp_flow_key_to_mask_udpif(const struct nlattr *mask_key,
+ size_t mask_key_len,
+ const struct nlattr *flow_key,
+ size_t flow_key_len,
+ struct flow_wildcards *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);
+void commit_masked_set_action(struct ofpbuf *odp_actions,
+ enum ovs_key_attr key_type, const void *key,
+ const void *mask, size_t key_size);
+enum slow_path_reason commit_odp_actions(const struct flow *,
+ struct flow *base,
+ struct ofpbuf *odp_actions,
+ struct flow_wildcards *wc,
+ bool use_masked);
+\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. */