+Flow API support
+----------------
+
+Supported attributes:
+
+- Ingress
+
+Supported pattern items:
+
+- VOID
+
+- ETH (exact match of source/destination addresses, individual/group match
+ of destination address, EtherType)
+
+- VLAN (exact match of VID, double-tagging is supported)
+
+- IPV4 (exact match of source/destination addresses,
+ IP transport protocol)
+
+- IPV6 (exact match of source/destination addresses,
+ IP transport protocol)
+
+- TCP (exact match of source/destination ports)
+
+- UDP (exact match of source/destination ports)
+
+Supported actions:
+
+- VOID
+
+- QUEUE
+
+Validating flow rules depends on the firmware variant.
+
+Ethernet destinaton individual/group match
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Ethernet item supports I/G matching, if only the corresponding bit is set
+in the mask of destination address. If destinaton address in the spec is
+multicast, it matches all multicast (and broadcast) packets, oherwise it
+matches unicast packets that are not filtered by other flow rules.
+
+