OVS-dpdk support

Introduce dpdk support for neutron OVS configuration

Change-Id: Ibb08f835ec4d4f67b561aff35189c4a493a9f420
Epic: PROD-8957
diff --git a/README.rst b/README.rst
index 3b9eda6..34dc657 100644
--- a/README.rst
+++ b/README.rst
@@ -506,6 +506,32 @@
             ovs:
               driver: openvswitch
 
+Neutron OVS DPDK
+==================
+
+Enable datapath netdev for neutron openvswitch agent
+
+.. code-block:: yaml
+
+    neutron:
+      server:
+        version: mitaka
+        ...
+        dpdk: True
+        ...
+
+    neutron:
+      compute:
+        version: mitaka
+        plugin: ml2
+        dpdk: True
+        backend:
+          engine: ml2
+          ...
+          mechanism:
+            ovs:
+              driver: openvswitch
+
 Neutron OVS SR-IOV
 ==================