+rte_flow_isolate(uint16_t port_id, int set, struct rte_flow_error *error);
+
+/**
+ * Initialize flow error structure.
+ *
+ * @param[out] error
+ * Pointer to flow error structure (may be NULL).
+ * @param code
+ * Related error code (rte_errno).
+ * @param type
+ * Cause field and error types.
+ * @param cause
+ * Object responsible for the error.
+ * @param message
+ * Human-readable error message.
+ *
+ * @return
+ * Negative error code (errno value) and rte_errno is set.
+ */
+int
+rte_flow_error_set(struct rte_flow_error *error,
+ int code,
+ enum rte_flow_error_type type,
+ const void *cause,
+ const char *message);
+
+/**
+ * Generic flow representation.
+ *
+ * This form is sufficient to describe an rte_flow independently from any
+ * PMD implementation and allows for replayability and identification.
+ */
+struct rte_flow_desc {
+ size_t size; /**< Allocated space including data[]. */
+ struct rte_flow_attr attr; /**< Attributes. */
+ struct rte_flow_item *items; /**< Items. */
+ struct rte_flow_action *actions; /**< Actions. */
+ uint8_t data[]; /**< Storage for items/actions. */
+};
+
+/**
+ * Copy an rte_flow rule description.
+ *
+ * @param[in] fd
+ * Flow rule description.
+ * @param[in] len
+ * Total size of allocated data for the flow description.
+ * @param[in] attr
+ * Flow rule attributes.
+ * @param[in] items
+ * Pattern specification (list terminated by the END pattern item).
+ * @param[in] actions
+ * Associated actions (list terminated by the END action).
+ *
+ * @return
+ * If len is greater or equal to the size of the flow, the total size of the
+ * flow description and its data.
+ * If len is lower than the size of the flow, the number of bytes that would
+ * have been written to desc had it been sufficient. Nothing is written.
+ */
+size_t
+rte_flow_copy(struct rte_flow_desc *fd, size_t len,
+ const struct rte_flow_attr *attr,
+ const struct rte_flow_item *items,
+ const struct rte_flow_action *actions);