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-rw-r--r--doc/guides/prog_guide/rte_flow.rst10
1 files changed, 8 insertions, 2 deletions
diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index c1863750..dbf4999a 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -2314,7 +2314,10 @@ in pattern, Some PMDs will reject rule because behaviour will be undefined.
Action: ``SET_MAC_SRC``
^^^^^^^^^^^^^^^^^^^^^^^
-Set source MAC address
+Set source MAC address.
+
+It must be used with a valid RTE_FLOW_ITEM_TYPE_ETH flow pattern item.
+Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
.. _table_rte_flow_action_set_mac_src:
@@ -2329,7 +2332,10 @@ Set source MAC address
Action: ``SET_MAC_DST``
^^^^^^^^^^^^^^^^^^^^^^^
-Set source MAC address
+Set destination MAC address.
+
+It must be used with a valid RTE_FLOW_ITEM_TYPE_ETH flow pattern item.
+Otherwise, RTE_FLOW_ERROR_TYPE_ACTION error will be returned.
.. _table_rte_flow_action_set_mac_dst: