rhel: Add support DPDK port creation via network scripts

Add support for creating a userspace bridge and the four DPDK port
types via network scripts + basic documentation.

Signed-off-by: Panu Matilainen <pmatilai@redhat.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Acked-by: Flavio Leitner <fbl@sysclose.org>
Signed-off-by: Ben Pfaff <blp@ovn.org>

4 files changed, 71 insertions, 3 deletions

diff --git a/NEWS b/NEWS
index 81f49e251..e3461f42a 100644
--- a/NEWS
+++ b/NEWS
@@ -39,6 +39,8 @@ v2.5.0 - xx xxx xxxx
      system to support virtual network abstraction.  OVN complements the
      existing capabilities of OVS to add native support for virtual network
      abstractions, such as virtual L2 and L3 overlays and security groups.
+   - RHEL packaging:
+     * DPDK ports may now be created via network scripts (see README.RHEL).
 
 
 v2.4.0 - 20 Aug 2015
diff --git a/rhel/README.RHEL b/rhel/README.RHEL
index 262067425..54c1b44b4 100644
--- a/rhel/README.RHEL
+++ b/rhel/README.RHEL
@@ -27,6 +27,19 @@ assignments.  The following OVS-specific variable names are supported:
 
         * "OVSPatchPort", if <name> is a patch port
 
+      Additionally the following DPDK port types may be available,
+      depends on OVS build- and runtime configuration:
+
+        * "OVSDPDKPort", if <name> is a physical DPDK NIC port (name
+          must start with "dpdk" and end with portid, eg "dpdk0")
+
+	* "OVSDPDKRPort", if <name> is a DPDK ring port (name must
+          start with dpdkr and end with portid, eg "dpdkr0")
+
+        * "OVSDPDKVhostPort" if <name> is a DPDK vhost-cuse port
+
+        * "OVSDPDKVhostUserPort" if <name> is a DPDK vhost-user port
+
     - OVS_BRIDGE: If TYPE is anything other than "OVSBridge", set to
       the name of the OVS bridge to which the port should be attached.
 
@@ -206,6 +219,36 @@ TYPE=OVSPatchPort
 OVS_BRIDGE=ovsbridge1
 OVS_PATCH_PEER=patch-ovs-0
 
+User bridge:
+
+==> ifcfg-obr0 <==
+
+DEVICE=obr0
+ONBOOT=yes
+DEVICETYPE=ovs
+TYPE=OVSUserBridge
+BOOTPROTO=static
+IPADDR=A.B.C.D
+NETMASK=X.Y.Z.0
+HOTPLUG=no
+
+DPDK NIC port:
+
+==> ifcfg-dpdk0 <==
+
+DPDK vhost-user port:
+DEVICE=dpdk0
+ONBOOT=yes
+DEVICETYPE=ovs
+TYPE=OVSDPDKPort
+OVS_BRIDGE=obr0
+
+==> ifcfg-vhu0 <==
+DEVICE=vhu0
+ONBOOT=yes
+DEVICETYPE=ovs
+TYPE=OVSDPDKVhostUserPort
+OVS_BRIDGE=obr0
 
 Reporting Bugs
 --------------
diff --git a/rhel/etc_sysconfig_network-scripts_ifdown-ovs b/rhel/etc_sysconfig_network-scripts_ifdown-ovs
index 5f78f9ca7..46b6ca5a6 100755
--- a/rhel/etc_sysconfig_network-scripts_ifdown-ovs
+++ b/rhel/etc_sysconfig_network-scripts_ifdown-ovs
@@ -46,7 +46,7 @@ else
 fi
 
 case "$TYPE" in
-	OVSBridge)
+	OVSBridge|OVSUserBridge)
 		${OTHERSCRIPT} ${CONFIG} $2
 		retval=$?
 		ovs-vsctl -t ${TIMEOUT} -- --if-exists del-br "$DEVICE"
@@ -59,6 +59,9 @@ case "$TYPE" in
 	OVSPatchPort|OVSTunnel)
 		ovs-vsctl -t ${TIMEOUT} -- --if-exists del-port "$OVS_BRIDGE" "$DEVICE"
 		;;
+	OVSDPDKPort|OVSDPDKRPort|OVSDPDKVhostPort|OVSDPDKVhostUserPort)
+		ovs-vsctl -t ${TIMEOUT} -- --if-exists del-port "$OVS_BRIDGE" "$DEVICE"
+		;;
 	*)
 		echo $"Invalid OVS interface type $TYPE"
 		exit 1
diff --git a/rhel/etc_sysconfig_network-scripts_ifup-ovs b/rhel/etc_sysconfig_network-scripts_ifup-ovs
index 478c5c393..f3fc05e12 100755
--- a/rhel/etc_sysconfig_network-scripts_ifup-ovs
+++ b/rhel/etc_sysconfig_network-scripts_ifup-ovs
@@ -72,15 +72,19 @@ else
 fi
 
 case "$TYPE" in
-	OVSBridge)
+	OVSBridge|OVSUserBridge)
 		# If bridge already exists and is up, it has been configured through
 		# other cases like OVSPort, OVSIntPort and OVSBond. If it is down or
 		# it does not exist, create it. It is possible for a bridge to exist
 		# because it remained in the OVSDB for some reason, but it won't be up.
+		if [ "${TYPE}" = "OVSUserBridge" ]; then
+			DATAPATH="netdev"
+		fi
 		if check_device_down "${DEVICE}"; then
 			ovs-vsctl -t ${TIMEOUT} -- --may-exist add-br "$DEVICE" $OVS_OPTIONS \
 			${OVS_EXTRA+-- $OVS_EXTRA} \
-			${STP+-- set bridge "$DEVICE" stp_enable="${STP}"}
+			${STP+-- set bridge "$DEVICE" stp_enable="${STP}"} \
+			${DATAPATH+-- set bridge "$DEVICE" datapath_type="$DATAPATH"}
 		else
 			OVSBRIDGECONFIGURED="yes"
 		fi
@@ -150,6 +154,22 @@ case "$TYPE" in
 		ifup_ovs_bridge
 		ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS -- set Interface "$DEVICE" type=patch options:peer="${OVS_PATCH_PEER}" ${OVS_EXTRA+-- $OVS_EXTRA}
 		;;
+	OVSDPDKPort)
+		ifup_ovs_bridge
+		ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS -- set Interface "$DEVICE" type=dpdk ${OVS_EXTRA+-- $OVS_EXTRA}
+		;;
+	OVSDPDKRPort)
+		ifup_ovs_bridge
+		ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS -- set Interface "$DEVICE" type=dpdkr ${OVS_EXTRA+-- $OVS_EXTRA}
+		;;
+	OVSDPDVhostPort)
+		ifup_ovs_bridge
+		ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS -- set Interface "$DEVICE" type=dpdkvhost ${OVS_EXTRA+-- $OVS_EXTRA}
+		;;
+	OVSDPDKVhostUserPort)
+		ifup_ovs_bridge
+		ovs-vsctl -t ${TIMEOUT} -- --may-exist add-port "$OVS_BRIDGE" "$DEVICE" $OVS_OPTIONS -- set Interface "$DEVICE" type=dpdkvhostuser ${OVS_EXTRA+-- $OVS_EXTRA}
+		;;
 	*)
 		echo $"Invalid OVS interface type $TYPE"
 		exit 1