[dpdk-dev] [RFC] ethdev: add generic MAC address rewrite actions

[Jack Min <jackmin@mellanox.com>]

There is a need to offload rewrite MAC address for both destination and source
from the matched flow

The proposed actions could make above easily achieved


Signed-off-by: Xiaoyu Min <jackmin@mellanox.com<mailto:jackmin@mellanox.com>>
---
lib/librte_ethdev/rte_flow.h | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index f8ba71cdb..4a51ab2a3 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -1505,6 +1505,26 @@ enum rte_flow_action_type {
         * error.
         */
        RTE_FLOW_ACTION_TYPE_NVGRE_DECAP,
+
+       /**
+        * Set source MAC address from matched flow.
+        *
+        * If flow pattern does not define a valid RTE_FLOW_ITEM_TYPE_ETH,
+        * the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
+        *
+        * See struct rte_flow_action_set_mac.
+        */
+       RTE_FLOW_ACTION_TYPE_SET_MAC_SRC,
+
+       /**
+        * Set destination MAC address from matched flow.
+        *
+        * If flow pattern does not define a valid RTE_FLOW_ITEM_TYPE_ETH,
+        * the PMD should return a RTE_FLOW_ERROR_TYPE_ACTION error.
+        *
+        * See struct rte_flow_action_set_mac.
+        */
+       RTE_FLOW_ACTION_TYPE_SET_MAC_DST,
};

/**
@@ -1868,6 +1888,18 @@ struct rte_flow_action_nvgre_encap {
        struct rte_flow_item *definition;
};

+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ACTION_TYPE_SET_MAC
+ *
+ * Set MAC address from the matched flow
+ */
+struct rte_flow_action_set_mac {
+       uint8_t mac_addr[ETHER_ADDR_LEN];
+};
+
/*
  * Definition of a single action.
  *
--
2.17.1