ethdev: add jump to table index action

Introduce the RTE_FLOW_ACTION_TYPE_JUMP_TO_TABLE_INDEX action.
It redirects packets to a particular index in a flow table.

Signed-off-by: Alexander Kozyrev <[email protected]>
Acked-by: Ori Kam <[email protected]>

Author: aleks-kozyrev

doc/guides/rel_notes/release_24_11.rst

@@ -65,6 +65,10 @@ New Features
   Added API for inserting the rule by index with pattern.
   Introduced rte_flow_async_create_by_index_with_pattern() function.
 
+* **Added the action to redirect packets to a particular index in a flow table.**
+
+  Introduced RTE_FLOW_ACTION_TYPE_JUMP_TO_TABLE_INDEX action type.
+
 * **Updated Cisco enic driver.**
 
   * Added SR-IOV VF support.

lib/ethdev/rte_flow.c

@@ -275,6 +275,7 @@ static const struct rte_flow_desc_data rte_flow_desc_action[] = {
 	MK_FLOW_ACTION(PROG,
 		       sizeof(struct rte_flow_action_prog)),
 	MK_FLOW_ACTION(NAT64, sizeof(struct rte_flow_action_nat64)),
+	MK_FLOW_ACTION(JUMP_TO_TABLE_INDEX, sizeof(struct rte_flow_action_jump_to_table_index)),
 };
 
 int

lib/ethdev/rte_flow.h

@@ -3262,6 +3262,15 @@ enum rte_flow_action_type {
 	 * @see struct rte_flow_action_nat64
 	 */
 	RTE_FLOW_ACTION_TYPE_NAT64,
+
+	/**
+	 * RTE_FLOW_ACTION_TYPE_JUMP_TO_TABLE_INDEX,
+	 *
+	 * Redirects packets to a particular index in a flow table.
+	 *
+	 * @see struct rte_flow_action_jump_to_table_index.
+	 */
+	RTE_FLOW_ACTION_TYPE_JUMP_TO_TABLE_INDEX,
 };
 
 /**
@@ -4266,6 +4275,20 @@ rte_flow_dynf_metadata_set(struct rte_mbuf *m, uint32_t v)
 	*RTE_FLOW_DYNF_METADATA(m) = v;
 }
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ACTION_TYPE_JUMP_TO_TABLE_INDEX
+ *
+ * Redirects packets to a particular index in a flow table.
+ *
+ */
+struct rte_flow_action_jump_to_table_index {
+	struct rte_flow_template_table *table;
+	uint32_t index;
+};
+
 /**
  * Definition of a single action.
  *