[ONOS-7627] Support the creation of sr-iov port type for LiquidIO smart NIC

Change-Id: I6d55d1dfd26ec6ed0b9df9fdeea31749b0c49b7c
diff --git a/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/OpenstackNodeService.java b/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/OpenstackNodeService.java
index 8ebb007..a692109 100644
--- a/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/OpenstackNodeService.java
+++ b/apps/openstacknode/api/src/main/java/org/onosproject/openstacknode/api/OpenstackNodeService.java
@@ -75,4 +75,20 @@
      * @return openstack node
      */
     OpenstackNode node(DeviceId deviceId);
+
+    /**
+     * Adds the vf port to the given openstack node.
+     *
+     * @param osNode openstack node
+     * @param portName port name
+     */
+    void addVfPort(OpenstackNode osNode, String portName);
+
+    /**
+     * Removes vf port to the given openstack node.
+     *
+     * @param osNode openstack node
+     * @param portName port name
+     */
+    void removeVfPort(OpenstackNode osNode, String portName);
 }
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java
index b9e193a..6064267 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DefaultOpenstackNodeHandler.java
@@ -59,9 +59,7 @@
 import org.onosproject.openstacknode.api.OpenstackNodeListener;
 import org.onosproject.openstacknode.api.OpenstackNodeService;
 import org.onosproject.openstacknode.api.OpenstackPhyInterface;
-import org.onosproject.ovsdb.controller.OvsdbClientService;
 import org.onosproject.ovsdb.controller.OvsdbController;
-import org.onosproject.ovsdb.controller.OvsdbNodeId;
 import org.osgi.service.component.ComponentContext;
 import org.slf4j.Logger;
 
@@ -84,6 +82,7 @@
 import static org.onosproject.openstacknode.api.NodeState.INCOMPLETE;
 import static org.onosproject.openstacknode.api.OpenstackNode.NodeType.GATEWAY;
 import static org.onosproject.openstacknode.api.OpenstackNodeService.APP_ID;
+import static org.onosproject.openstacknode.util.OpenstackNodeUtil.isOvsdbConnected;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
@@ -95,8 +94,8 @@
     private final Logger log = getLogger(getClass());
 
     private static final String OVSDB_PORT = "ovsdbPortNum";
-    private static final int DEFAULT_OVSDB_PORT = 6640;
     private static final String DEFAULT_OF_PROTO = "tcp";
+    private static final int DEFAULT_OVSDB_PORT = 6640;
     private static final int DEFAULT_OFPORT = 6653;
     private static final int DPID_BEGIN = 3;
 
@@ -180,7 +179,7 @@
 
     @Override
     public void processInitState(OpenstackNode osNode) {
-        if (!isOvsdbConnected(osNode)) {
+        if (!isOvsdbConnected(osNode, ovsdbPort, ovsdbController, deviceService)) {
             ovsdbController.connect(osNode.managementIp(), tpPort(ovsdbPort));
             return;
         }
@@ -192,13 +191,13 @@
     @Override
     public void processDeviceCreatedState(OpenstackNode osNode) {
         try {
-            if (!isOvsdbConnected(osNode)) {
+            if (!isOvsdbConnected(osNode, ovsdbPort, ovsdbController, deviceService)) {
                 ovsdbController.connect(osNode.managementIp(), tpPort(ovsdbPort));
                 return;
             }
 
             if (osNode.type() == GATEWAY) {
-                addSystemInterface(osNode, INTEGRATION_BRIDGE, osNode.uplinkPort());
+                addOrRemoveSystemInterface(osNode, INTEGRATION_BRIDGE, osNode.uplinkPort(), true);
             }
 
             if (osNode.dataIp() != null &&
@@ -208,12 +207,12 @@
 
             if (osNode.vlanIntf() != null &&
                     !isIntfEnabled(osNode, osNode.vlanIntf())) {
-                addSystemInterface(osNode, INTEGRATION_BRIDGE, osNode.vlanIntf());
+                addOrRemoveSystemInterface(osNode, INTEGRATION_BRIDGE, osNode.vlanIntf(), true);
             }
 
             osNode.phyIntfs().forEach(i -> {
                 if (!isIntfEnabled(osNode, i.intf())) {
-                    addSystemInterface(osNode, INTEGRATION_BRIDGE, i.intf());
+                    addOrRemoveSystemInterface(osNode, INTEGRATION_BRIDGE, i.intf(), true);
                 }
             });
 
@@ -224,11 +223,7 @@
 
     @Override
     public void processCompleteState(OpenstackNode osNode) {
-        OvsdbClientService ovsdbClient = ovsdbController.getOvsdbClient(
-                new OvsdbNodeId(osNode.managementIp(), DEFAULT_OVSDB_PORT));
-        if (ovsdbClient != null && ovsdbClient.isConnected()) {
-            ovsdbClient.disconnect();
-        }
+        //Do something if needed
     }
 
     @Override
@@ -237,21 +232,6 @@
     }
 
     /**
-     * Checks whether the controller has a connection with an OVSDB that resides
-     * inside the given openstack node.
-     *
-     * @param osNode openstack node
-     * @return true if the controller is connected to the OVSDB, false otherwise
-     */
-    private boolean isOvsdbConnected(OpenstackNode osNode) {
-        OvsdbNodeId ovsdb = new OvsdbNodeId(osNode.managementIp(), ovsdbPort);
-        OvsdbClientService client = ovsdbController.getOvsdbClient(ovsdb);
-        return deviceService.isAvailable(osNode.ovsdb()) &&
-                client != null &&
-                client.isConnected();
-    }
-
-    /**
      * Creates a bridge with a given name on a given openstack node.
      *
      * @param osNode openstack node
@@ -288,19 +268,27 @@
     }
 
     /**
-     * Adds a network interface (aka port) into a given bridge of openstack node.
+     * Adds or removes a network interface (aka port) into a given bridge of openstack node.
      *
      * @param osNode openstack node
      * @param bridgeName bridge name
      * @param intfName interface name
+     * @param addOrRemove add port is true, remove it otherwise
      */
-    private void addSystemInterface(OpenstackNode osNode, String bridgeName, String intfName) {
+    private void addOrRemoveSystemInterface(OpenstackNode osNode, String bridgeName, String intfName,
+                                            boolean addOrRemove) {
         Device device = deviceService.getDevice(osNode.ovsdb());
         if (device == null || !device.is(BridgeConfig.class)) {
+            log.info("device is null or this device if not ovsdb device");
             return;
         }
         BridgeConfig bridgeConfig =  device.as(BridgeConfig.class);
-        bridgeConfig.addPort(BridgeName.bridgeName(bridgeName), intfName);
+
+        if (addOrRemove) {
+            bridgeConfig.addPort(BridgeName.bridgeName(bridgeName), intfName);
+        } else {
+            bridgeConfig.deletePort(BridgeName.bridgeName(bridgeName), intfName);
+        }
     }
 
     /**
@@ -377,6 +365,10 @@
     private boolean isCurrentStateDone(OpenstackNode osNode) {
         switch (osNode.state()) {
             case INIT:
+                if (!isOvsdbConnected(osNode, ovsdbPort, ovsdbController, deviceService)) {
+                    return false;
+                }
+
                 return deviceService.isAvailable(osNode.intgBridge());
             case DEVICE_CREATED:
                 if (osNode.dataIp() != null &&
@@ -465,9 +457,6 @@
                         if (deviceService.isAvailable(device.id())) {
                             log.debug("OVSDB {} detected", device.id());
                             bootstrapNode(osNode);
-                        } else if (osNode.state() == COMPLETE) {
-                            log.debug("Removing OVSDB {}", device.id());
-                            deviceAdminService.removeDevice(device.id());
                         }
                     });
                     break;
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java
index fb8a871..f30787c 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/OpenstackNodeManager.java
@@ -20,15 +20,22 @@
 import org.apache.felix.scr.annotations.Activate;
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Deactivate;
+import org.apache.felix.scr.annotations.Modified;
+import org.apache.felix.scr.annotations.Property;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.Service;
+import org.onlab.util.Tools;
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.LeadershipService;
 import org.onosproject.core.ApplicationId;
 import org.onosproject.core.CoreService;
 import org.onosproject.event.ListenerRegistry;
+import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.behaviour.BridgeConfig;
+import org.onosproject.net.behaviour.BridgeName;
+import org.onosproject.net.device.DeviceService;
 import org.onosproject.openstacknode.api.OpenstackNode;
 import org.onosproject.openstacknode.api.OpenstackNodeAdminService;
 import org.onosproject.openstacknode.api.OpenstackNodeEvent;
@@ -36,8 +43,12 @@
 import org.onosproject.openstacknode.api.OpenstackNodeService;
 import org.onosproject.openstacknode.api.OpenstackNodeStore;
 import org.onosproject.openstacknode.api.OpenstackNodeStoreDelegate;
+import org.onosproject.ovsdb.controller.OvsdbController;
+import org.onosproject.store.service.StorageService;
+import org.osgi.service.component.ComponentContext;
 import org.slf4j.Logger;
 
+import java.util.Dictionary;
 import java.util.Objects;
 import java.util.Set;
 import java.util.concurrent.ExecutorService;
@@ -46,8 +57,11 @@
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkNotNull;
 import static java.util.concurrent.Executors.newSingleThreadExecutor;
+import static org.onlab.packet.TpPort.tpPort;
 import static org.onlab.util.Tools.groupedThreads;
+import static org.onosproject.openstacknode.api.Constants.INTEGRATION_BRIDGE;
 import static org.onosproject.openstacknode.api.NodeState.COMPLETE;
+import static org.onosproject.openstacknode.util.OpenstackNodeUtil.isOvsdbConnected;
 import static org.slf4j.LoggerFactory.getLogger;
 
 /**
@@ -64,6 +78,8 @@
     private static final String MSG_CREATED = "created";
     private static final String MSG_UPDATED = "updated";
     private static final String MSG_REMOVED = "removed";
+    private static final String OVSDB_PORT = "ovsdbPortNum";
+    private static final int DEFAULT_OVSDB_PORT = 6640;
 
     private static final String ERR_NULL_NODE = "OpenStack node cannot be null";
     private static final String ERR_NULL_HOSTNAME = "OpenStack node hostname cannot be null";
@@ -80,6 +96,19 @@
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected LeadershipService leadershipService;
 
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected StorageService storageService;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected OvsdbController ovsdbController;
+
+    @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
+    protected DeviceService deviceService;
+
+    @Property(name = OVSDB_PORT, intValue = DEFAULT_OVSDB_PORT,
+            label = "OVSDB server listen port")
+    private int ovsdbPort = DEFAULT_OVSDB_PORT;
+
     private final ExecutorService eventExecutor = newSingleThreadExecutor(
             groupedThreads(this.getClass().getSimpleName(), "event-handler", log));
 
@@ -107,6 +136,17 @@
         log.info("Stopped");
     }
 
+    @Modified
+    protected void modified(ComponentContext context) {
+        Dictionary<?, ?> properties = context.getProperties();
+        int updatedOvsdbPort = Tools.getIntegerProperty(properties, OVSDB_PORT);
+        if (!Objects.equals(updatedOvsdbPort, ovsdbPort)) {
+            ovsdbPort = updatedOvsdbPort;
+        }
+
+        log.info("Modified");
+    }
+
     @Override
     public void createNode(OpenstackNode osNode) {
         checkNotNull(osNode, ERR_NULL_NODE);
@@ -172,6 +212,57 @@
                 .findFirst().orElse(null);
     }
 
+    @Override
+    public void addVfPort(OpenstackNode osNode, String portName) {
+        log.trace("addVfPort called");
+
+        if (!isOvsdbConnected(osNode, ovsdbPort, ovsdbController, deviceService)) {
+            log.warn("There's no ovsdb connection with the device {}. Try to connect the device...",
+                    osNode.ovsdb().toString());
+            try {
+                ovsdbController.connect(osNode.managementIp(), tpPort(ovsdbPort));
+            } catch (Exception e) {
+                log.error("Failed to connect to the openstackNode via ovsdb protocol because of exception {}",
+                        e.toString());
+            }
+        }
+
+        addOrRemoveSystemInterface(osNode, INTEGRATION_BRIDGE, portName, true);
+    }
+
+    @Override
+    public void removeVfPort(OpenstackNode osNode, String portName) {
+        log.trace("removeVfPort called");
+
+        if (!isOvsdbConnected(osNode, ovsdbPort, ovsdbController, deviceService)) {
+            log.warn("There's no ovsdb connection with the device {}. Try to connect the device...",
+                    osNode.ovsdb().toString());
+            try {
+                ovsdbController.connect(osNode.managementIp(), tpPort(ovsdbPort));
+            } catch (Exception e) {
+                log.error("Failed to connect to the openstackNode via ovsdb protocol because of exception {}",
+                        e.toString());
+            }
+        }
+
+        addOrRemoveSystemInterface(osNode, INTEGRATION_BRIDGE, portName, false);
+    }
+
+    private void addOrRemoveSystemInterface(OpenstackNode osNode, String bridgeName, String intfName,
+                                            boolean addOrRemove) {
+        Device device = deviceService.getDevice(osNode.ovsdb());
+        if (device == null || !device.is(BridgeConfig.class)) {
+            log.info("device is null or this device if not ovsdb device");
+            return;
+        }
+        BridgeConfig bridgeConfig =  device.as(BridgeConfig.class);
+        if (addOrRemove) {
+            bridgeConfig.addPort(BridgeName.bridgeName(bridgeName), intfName);
+        } else {
+            bridgeConfig.deletePort(BridgeName.bridgeName(bridgeName), intfName);
+        }
+    }
+
     private class InternalNodeStoreDelegate implements OpenstackNodeStoreDelegate {
 
         @Override
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
new file mode 100644
index 0000000..79526e6
--- /dev/null
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/OpenstackNodeUtil.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onosproject.openstacknode.util;
+
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.openstacknode.api.OpenstackNode;
+import org.onosproject.ovsdb.controller.OvsdbClientService;
+import org.onosproject.ovsdb.controller.OvsdbController;
+import org.onosproject.ovsdb.controller.OvsdbNodeId;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * An utility that used in openstack node app.
+ */
+public final class OpenstackNodeUtil {
+    protected static final Logger log = LoggerFactory.getLogger(OpenstackNodeUtil.class);
+
+    /**
+     * Prevents object instantiation from external.
+     */
+    private OpenstackNodeUtil() {
+    }
+
+    /**
+     * Checks whether the controller has a connection with an OVSDB that resides
+     * inside the given openstack node.
+     *
+     * @param osNode openstack node
+     * @param ovsdbPort ovsdb port
+     * @param ovsdbController ovsdb controller
+     * @param deviceService device service
+     * @return true if the controller is connected to the OVSDB, false otherwise
+     */
+    public static boolean isOvsdbConnected(OpenstackNode osNode,
+                                           int ovsdbPort,
+                                           OvsdbController ovsdbController,
+                                           DeviceService deviceService) {
+        OvsdbNodeId ovsdb = new OvsdbNodeId(osNode.managementIp(), ovsdbPort);
+        OvsdbClientService client = ovsdbController.getOvsdbClient(ovsdb);
+        return deviceService.isAvailable(osNode.ovsdb()) &&
+                client != null &&
+                client.isConnected();
+    }
+}
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/package-info.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/package-info.java
new file mode 100644
index 0000000..0f8165a
--- /dev/null
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/util/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Openstack node utility package.
+ */
+package org.onosproject.openstacknode.util;
\ No newline at end of file
diff --git a/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/OpenstackNodeManagerTest.java b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/OpenstackNodeManagerTest.java
index df9ae73..cb0a73e 100644
--- a/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/OpenstackNodeManagerTest.java
+++ b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/OpenstackNodeManagerTest.java
@@ -119,6 +119,7 @@
         osNodeStore.createNode(GATEWAY_1);
 
         target = new org.onosproject.openstacknode.impl.OpenstackNodeManager();
+        target.storageService = new TestStorageService();
         target.coreService = new TestCoreService();
         target.clusterService = new TestClusterService();
         target.leadershipService = new TestLeadershipService();
diff --git a/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/TestOpenstackNodeManager.java b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/TestOpenstackNodeManager.java
index cf877d7..ea9b8c6 100644
--- a/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/TestOpenstackNodeManager.java
+++ b/apps/openstacknode/app/src/test/java/org/onosproject/openstacknode/impl/TestOpenstackNodeManager.java
@@ -79,6 +79,15 @@
     }
 
         @Override
+        public void addVfPort(OpenstackNode osNode, String portName) {
+    }
+
+        @Override
+        public void removeVfPort(OpenstackNode osNode, String portName) {
+
+    }
+
+        @Override
         public void addListener(OpenstackNodeListener listener) {
         listeners.add(listener);
     }