Various changes in BMv2 driver and provider modules

Driver notable changes:
- Implemented new behaviors, removed deprecated ones
- Removed flow rule translator classes (now under protocol module)
- Improved FlowRuleProgrammable: now it uses BMv2TableEntryService
	to lookup/bind flow rules with BMv2 table entries, retrieves flow
	statistics, better exception handling when adding/replacing/removing
	table entries.
- Improved PacketProgrammable: better exception handling and logging

Provider notable changes:
- Bmv2DeviceProvider: detects and notifies device configuration
	changes and reboots to Bmv2DeviceContextService, added support for
	periodic polling of port statistics
- Bmv2PacketProvider: implemented workaround for OutboundPackets with
	flood treatment

Change-Id: I79b756b533d4afb6b70025a137b2e811fd42a4e8

@@ -20,6 +20,6 @@
     <feature name="${project.artifactId}" version="${project.version}"
     <feature name="${project.artifactId}" version="${project.version}"
              description="${project.description}">
              description="${project.description}">
         <bundle>mvn:${project.groupId}/${project.artifactId}/${project.version}</bundle>
         <bundle>mvn:${project.groupId}/${project.artifactId}/${project.version}</bundle>
-        <bundle>mvn:${project.groupId}/onos-bmv2-protocol/${project.version}</bundle>
+        <bundle>mvn:${project.groupId}/onos-bmv2-protocol-api/${project.version}</bundle>
     </feature>
     </feature>
 </features>
 </features>

@@ -22,6 +22,7 @@
         <artifactId>onos-drivers-general</artifactId>
         <artifactId>onos-drivers-general</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
 
 
@@ -36,7 +37,7 @@
         <onos.app.name>org.onosproject.drivers.bmv2</onos.app.name>
         <onos.app.name>org.onosproject.drivers.bmv2</onos.app.name>
         <onos.app.origin>ON.Lab</onos.app.origin>
         <onos.app.origin>ON.Lab</onos.app.origin>
         <onos.app.category>Drivers</onos.app.category>
         <onos.app.category>Drivers</onos.app.category>
-        <onos.app.title>BMv2 Device Drivers</onos.app.title>
+        <onos.app.title>BMv2 Drivers</onos.app.title>
         <onos.app.url>http://onosproject.org</onos.app.url>
         <onos.app.url>http://onosproject.org</onos.app.url>
         <onos.app.requires>
         <onos.app.requires>
             org.onosproject.bmv2
             org.onosproject.bmv2
@@ -46,7 +47,7 @@
     <dependencies>
     <dependencies>
         <dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
             <groupId>org.onosproject</groupId>
-            <artifactId>onos-bmv2-protocol</artifactId>
+            <artifactId>onos-bmv2-protocol-api</artifactId>
             <version>${project.version}</version>
             <version>${project.version}</version>
         </dependency>
         </dependency>
         <dependency>
         <dependency>

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.drivers.bmv2;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import org.onlab.packet.ChassisId;
+import org.onosproject.bmv2.api.runtime.Bmv2DeviceAgent;
+import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException;
+import org.onosproject.bmv2.api.service.Bmv2Controller;
+import org.onosproject.net.AnnotationKeys;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.device.DefaultDeviceDescription;
+import org.onosproject.net.device.DefaultPortDescription;
+import org.onosproject.net.device.DeviceDescription;
+import org.onosproject.net.device.DeviceDescriptionDiscovery;
+import org.onosproject.net.device.PortDescription;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.math.BigInteger;
+import java.util.List;
+
+import static org.onosproject.bmv2.api.runtime.Bmv2Device.*;
+import static org.onosproject.net.Device.Type.SWITCH;
+
+/**
+ * Implementation of the device description discovery behaviour for BMv2.
+ */
+public class Bmv2DeviceDescriptionDiscovery extends AbstractHandlerBehaviour implements DeviceDescriptionDiscovery {
+
+    private static final String JSON_CONFIG_MD5 = "bmv2JsonConfigMd5";
+    private static final String PROCESS_INSTANCE_ID = "bmv2ProcessInstanceId";
+
+    private final Logger log = LoggerFactory.getLogger(this.getClass());
+
+    private Bmv2Controller controller;
+
+    private boolean init() {
+        controller = handler().get(Bmv2Controller.class);
+        if (controller == null) {
+            log.warn("Failed to get a BMv2 controller");
+            return false;
+        }
+        return true;
+    }
+
+    @Override
+    public DeviceDescription discoverDeviceDetails() {
+
+        if (!init()) {
+            return null;
+        }
+
+        DeviceId deviceId = handler().data().deviceId();
+
+        Bmv2DeviceAgent deviceAgent;
+        try {
+            deviceAgent = controller.getAgent(deviceId);
+        } catch (Bmv2RuntimeException e) {
+            log.error("Failed to connect to Bmv2 device", e);
+            return null;
+        }
+
+        DefaultAnnotations.Builder annotationsBuilder = DefaultAnnotations.builder();
+
+        try {
+            String md5 = deviceAgent.getJsonConfigMd5();
+            BigInteger i = new BigInteger(1, md5.getBytes());
+            annotationsBuilder.set(JSON_CONFIG_MD5, String.format("%1$032X", i).toLowerCase());
+        } catch (Bmv2RuntimeException e) {
+            log.warn("Unable to dump JSON configuration from {}: {}", deviceId, e.explain());
+        }
+        try {
+            int instanceId = deviceAgent.getProcessInstanceId();
+            annotationsBuilder.set(PROCESS_INSTANCE_ID, String.valueOf(instanceId));
+        } catch (Bmv2RuntimeException e) {
+            log.warn("Unable to get process instance ID from {}: {}", deviceId, e.explain());
+        }
+
+        annotationsBuilder.set(AnnotationKeys.PROTOCOL, PROTOCOL);
+
+        return new DefaultDeviceDescription(deviceId.uri(),
+                                            SWITCH,
+                                            MANUFACTURER,
+                                            HW_VERSION,
+                                            SW_VERSION,
+                                            SERIAL_NUMBER,
+                                            new ChassisId(),
+                                            annotationsBuilder.build());
+    }
+
+    @Override
+    public List<PortDescription> discoverPortDetails() {
+
+        if (!init()) {
+            return null;
+        }
+
+        DeviceId deviceId = handler().data().deviceId();
+
+        Bmv2DeviceAgent deviceAgent;
+        try {
+            deviceAgent = controller.getAgent(deviceId);
+        } catch (Bmv2RuntimeException e) {
+            log.error("Failed to connect to Bmv2 device", e);
+            return null;
+        }
+
+        List<PortDescription> portDescriptions = Lists.newArrayList();
+
+        try {
+            deviceAgent.getPortsInfo().forEach(p -> {
+                PortNumber portNumber = PortNumber.portNumber((long) p.number(), p.ifaceName());
+                portDescriptions.add(new DefaultPortDescription(portNumber, p.isUp(), DefaultAnnotations.EMPTY));
+            });
+        } catch (Bmv2RuntimeException e) {
+            log.error("Unable to get port descriptions of {}: {}", deviceId, e);
+        }
+
+        return ImmutableList.copyOf(portDescriptions);
+    }
+}

@@ -20,7 +20,7 @@ import org.apache.felix.scr.annotations.Component;
 import org.onosproject.net.driver.AbstractDriverLoader;
 import org.onosproject.net.driver.AbstractDriverLoader;
 
 
 /**
 /**
- * Loader for barefoot drivers from specific xml.
+ * Loader for BMv2 drivers from xml file.
  */
  */
 @Component(immediate = true)
 @Component(immediate = true)
 public class Bmv2DriversLoader extends AbstractDriverLoader {
 public class Bmv2DriversLoader extends AbstractDriverLoader {

@@ -14,7 +14,29 @@
  * limitations under the License.
  * limitations under the License.
  */
  */
 
 
+package org.onosproject.drivers.bmv2;
+
+import org.onosproject.bmv2.api.runtime.Bmv2ExtensionSelector;
+import org.onosproject.net.behaviour.ExtensionSelectorResolver;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.flow.criteria.ExtensionSelector;
+import org.onosproject.net.flow.criteria.ExtensionSelectorType;
+
+import java.util.Collections;
+
+import static org.onosproject.net.flow.criteria.ExtensionSelectorType.ExtensionSelectorTypes.BMV2_MATCH_PARAMS;
+
 /**
 /**
- * Translators of ONOS abstractions to BMv2 model-dependent abstractions.
+ * Implementation of the extension selector resolver behaviour for BMv2.
  */
  */
-package org.onosproject.drivers.bmv2.translators;
\ No newline at end of file
+public class Bmv2ExtensionSelectorResolver extends AbstractHandlerBehaviour implements ExtensionSelectorResolver {
+
+    @Override
+    public ExtensionSelector getExtensionSelector(ExtensionSelectorType type) {
+        if (type.equals(BMV2_MATCH_PARAMS.type())) {
+            return new Bmv2ExtensionSelector(Collections.emptyMap());
+        }
+
+        return null;
+    }
+}

@@ -14,14 +14,26 @@
  * limitations under the License.
  * limitations under the License.
  */
  */
 
 
-package org.onosproject.drivers.bmv2.translators;
+package org.onosproject.drivers.bmv2;
+
+import org.onosproject.bmv2.api.runtime.Bmv2ExtensionTreatment;
+import org.onosproject.net.behaviour.ExtensionTreatmentResolver;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.flow.instructions.ExtensionTreatment;
+import org.onosproject.net.flow.instructions.ExtensionTreatmentType;
+
+import static org.onosproject.net.flow.instructions.ExtensionTreatmentType.ExtensionTreatmentTypes.BMV2_ACTION;
 
 
 /**
 /**
- * BMv2 flow rule translator exception.
+ * Implementation of the extension treatment resolver behavior for BMv2.
  */
  */
-public class Bmv2FlowRuleTranslatorException extends Exception {
+public class Bmv2ExtensionTreatmentResolver extends AbstractHandlerBehaviour implements ExtensionTreatmentResolver {
 
 
-    Bmv2FlowRuleTranslatorException(String msg) {
-        super(msg);
+    @Override
+    public ExtensionTreatment getExtensionInstruction(ExtensionTreatmentType type) {
+        if (type.equals(BMV2_ACTION.type())) {
+            return new Bmv2ExtensionTreatment(null);
+        }
+        return null;
     }
     }
 }
 }

@@ -17,56 +17,59 @@
 package org.onosproject.drivers.bmv2;
 package org.onosproject.drivers.bmv2;
 
 
 import org.onlab.util.ImmutableByteSequence;
 import org.onlab.util.ImmutableByteSequence;
-import org.onosproject.bmv2.api.runtime.Bmv2Client;
+import org.onosproject.bmv2.api.runtime.Bmv2DeviceAgent;
 import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException;
 import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException;
-import org.onosproject.bmv2.ctl.Bmv2ThriftClient;
+import org.onosproject.bmv2.api.service.Bmv2Controller;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.driver.AbstractHandlerBehaviour;
 import org.onosproject.net.driver.AbstractHandlerBehaviour;
 import org.onosproject.net.flow.TrafficTreatment;
 import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.flow.instructions.Instructions;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.OutboundPacket;
 import org.onosproject.net.packet.PacketProgrammable;
 import org.onosproject.net.packet.PacketProgrammable;
 import org.slf4j.Logger;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.slf4j.LoggerFactory;
 
 
+import java.util.List;
+
 import static java.lang.Math.toIntExact;
 import static java.lang.Math.toIntExact;
-import static org.onosproject.net.PortNumber.FLOOD;
+import static java.util.stream.Collectors.toList;
 import static org.onosproject.net.flow.instructions.Instruction.Type.OUTPUT;
 import static org.onosproject.net.flow.instructions.Instruction.Type.OUTPUT;
+import static org.onosproject.net.flow.instructions.Instructions.OutputInstruction;
 
 
 /**
 /**
- * Packet programmable device behaviour implementation for BMv2.
+ * Implementation of the packet programmable behaviour for BMv2.
  */
  */
 public class Bmv2PacketProgrammable extends AbstractHandlerBehaviour implements PacketProgrammable {
 public class Bmv2PacketProgrammable extends AbstractHandlerBehaviour implements PacketProgrammable {
 
 
-    private static final Logger LOG =
-            LoggerFactory.getLogger(Bmv2PacketProgrammable.class);
+    private final Logger log = LoggerFactory.getLogger(this.getClass());
 
 
     @Override
     @Override
     public void emit(OutboundPacket packet) {
     public void emit(OutboundPacket packet) {
 
 
         TrafficTreatment treatment = packet.treatment();
         TrafficTreatment treatment = packet.treatment();
 
 
-        treatment.allInstructions().forEach(inst -> {
-            if (inst.type().equals(OUTPUT)) {
-                Instructions.OutputInstruction outInst = (Instructions.OutputInstruction) inst;
-                if (outInst.port().isLogical()) {
-                    if (outInst.port() == FLOOD) {
-                        // TODO: implement flood
-                        LOG.info("Flood not implemented", outInst);
-                    }
-                    LOG.info("Output on logical port not supported: {}", outInst);
-                } else {
-                    try {
-                        long longPort = outInst.port().toLong();
-                        int portNumber = toIntExact(longPort);
-                        send(portNumber, packet);
-                    } catch (ArithmeticException e) {
-                        LOG.error("Port number overflow! Cannot send packet on port {} (long), as the bmv2" +
-                                          " device only accepts int port values.");
-                    }
-                }
+        // BMv2 supports only OUTPUT instructions.
+        List<OutputInstruction> outInstructions = treatment.allInstructions()
+                .stream()
+                .filter(i -> i.type().equals(OUTPUT))
+                .map(i -> (OutputInstruction) i)
+                .collect(toList());
+
+        if (treatment.allInstructions().size() != outInstructions.size()) {
+            // There are other instructions that are not of type OUTPUT
+            log.warn("Dropping emit request, treatment nor supported: {}", treatment);
+            return;
+        }
+
+        outInstructions.forEach(outInst -> {
+            if (outInst.port().isLogical()) {
+                log.warn("Dropping emit request, logical port not supported: {}", outInst.port());
             } else {
             } else {
-                LOG.info("Instruction type not supported: {}", inst.type().name());
+                try {
+                    int portNumber = toIntExact(outInst.port().toLong());
+                    send(portNumber, packet);
+                } catch (ArithmeticException e) {
+                    log.error("Dropping emit request, port number too big: {}", outInst.port().toLong());
+                }
             }
             }
         });
         });
     }
     }
@@ -75,19 +78,25 @@ public class Bmv2PacketProgrammable extends AbstractHandlerBehaviour implements
 
 
         DeviceId deviceId = handler().data().deviceId();
         DeviceId deviceId = handler().data().deviceId();
 
 
-        Bmv2Client deviceClient;
+        Bmv2Controller controller = handler().get(Bmv2Controller.class);
+        if (controller == null) {
+            log.error("Failed to get BMv2 controller");
+            return;
+        }
+
+        Bmv2DeviceAgent deviceAgent;
         try {
         try {
-            deviceClient = Bmv2ThriftClient.of(deviceId);
+            deviceAgent = controller.getAgent(deviceId);
         } catch (Bmv2RuntimeException e) {
         } catch (Bmv2RuntimeException e) {
-            LOG.error("Failed to connect to Bmv2 device", e);
+            log.error("Failed to get Bmv2 device agent for {}: {}", deviceId, e.explain());
             return;
             return;
         }
         }
 
 
         ImmutableByteSequence bs = ImmutableByteSequence.copyFrom(packet.data());
         ImmutableByteSequence bs = ImmutableByteSequence.copyFrom(packet.data());
         try {
         try {
-            deviceClient.transmitPacket(port, bs);
+            deviceAgent.transmitPacket(port, bs);
         } catch (Bmv2RuntimeException e) {
         } catch (Bmv2RuntimeException e) {
-            LOG.info("Unable to push packet to device: deviceId={}, packet={}", deviceId, bs);
+            log.warn("Unable to emit packet trough {}: {}", deviceId, e.explain());
         }
         }
     }
     }
 }
 }

@@ -37,8 +37,8 @@ public class Bmv2Pipeliner extends AbstractHandlerBehaviour implements Pipeliner
 
 
     @Override
     @Override
     public void init(DeviceId deviceId, PipelinerContext context) {
     public void init(DeviceId deviceId, PipelinerContext context) {
-        // TODO: get multi-table pipeliner dynamically based on BMv2 device running model
-        // Right now we only support single table pipelines
+        // TODO: get multi-table pipeliner dynamically based on BMv2 device running model (hard).
+        // Right now we are able to map flow objectives only in the first table of the pipeline.
         pipeliner = new DefaultSingleTablePipeline();
         pipeliner = new DefaultSingleTablePipeline();
         pipeliner.init(deviceId, context);
         pipeliner.init(deviceId, context);
     }
     }

-/*
- * Copyright 2014-2016 Open Networking Laboratory
- *
- * 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.drivers.bmv2;
-
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Lists;
-import org.onosproject.bmv2.api.runtime.Bmv2Client;
-import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException;
-import org.onosproject.bmv2.ctl.Bmv2ThriftClient;
-import org.onosproject.net.DefaultAnnotations;
-import org.onosproject.net.PortNumber;
-import org.onosproject.net.SparseAnnotations;
-import org.onosproject.net.behaviour.PortDiscovery;
-import org.onosproject.net.device.DefaultPortDescription;
-import org.onosproject.net.device.PortDescription;
-import org.onosproject.net.driver.AbstractHandlerBehaviour;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import java.util.Collections;
-import java.util.List;
-
-public class Bmv2PortDiscovery extends AbstractHandlerBehaviour
-        implements PortDiscovery {
-
-    private final Logger log =
-            LoggerFactory.getLogger(this.getClass());
-
-    @Override
-    public List<PortDescription> getPorts() {
-        Bmv2Client deviceClient;
-        try {
-            deviceClient = Bmv2ThriftClient.of(handler().data().deviceId());
-        } catch (Bmv2RuntimeException e) {
-            log.error("Failed to connect to Bmv2 device", e);
-            return Collections.emptyList();
-        }
-
-        List<PortDescription> portDescriptions = Lists.newArrayList();
-
-        try {
-
-            deviceClient.getPortsInfo().forEach(
-                    p -> {
-                        DefaultAnnotations.Builder builder =
-                                DefaultAnnotations.builder();
-                        p.getExtraProperties().forEach(builder::set);
-                        SparseAnnotations annotations = builder.build();
-
-                        portDescriptions.add(new DefaultPortDescription(
-                                PortNumber.portNumber(
-                                        (long) p.portNumber(),
-                                        p.ifaceName()),
-                                p.isUp(),
-                                annotations
-                        ));
-                    });
-        } catch (Bmv2RuntimeException e) {
-            log.error("Unable to get port description from Bmv2 device", e);
-        }
-
-        return ImmutableList.copyOf(portDescriptions);
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * 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.drivers.bmv2.translators;
-
-import com.google.common.annotations.Beta;
-import org.onosproject.bmv2.api.model.Bmv2Model;
-import org.onosproject.net.flow.criteria.Criterion;
-
-import java.util.Map;
-
-import static org.onosproject.drivers.bmv2.translators.Bmv2FlowRuleTranslator.TranslatorConfig;
-
-/**
- * Default implementation of a BMv2 flow rule translator configuration.
- */
-@Beta
-public abstract class Bmv2DefaultTranslatorConfig implements TranslatorConfig {
-
-    private final Bmv2Model model;
-    private final Map<String, Criterion.Type> fieldMap;
-
-    /**
-     * Creates a new translator configuration.
-     *
-     * @param model    a BMv2 packet processing model
-     * @param fieldMap a field-to-criterion type map
-     */
-    protected Bmv2DefaultTranslatorConfig(Bmv2Model model, Map<String, Criterion.Type> fieldMap) {
-        this.model = model;
-        this.fieldMap = fieldMap;
-    }
-
-    @Override
-    public Bmv2Model model() {
-        return this.model;
-    }
-
-    @Override
-    public Map<String, Criterion.Type> fieldToCriterionTypeMap() {
-        return this.fieldMap;
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * 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.drivers.bmv2.translators;
-
-import com.google.common.annotations.Beta;
-import org.onosproject.bmv2.api.model.Bmv2Model;
-import org.onosproject.bmv2.api.runtime.Bmv2Action;
-import org.onosproject.bmv2.api.runtime.Bmv2TableEntry;
-import org.onosproject.net.flow.FlowRule;
-import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.flow.criteria.Criterion;
-
-import java.util.Map;
-
-/**
- * Translator of ONOS flow rules to BMv2 table entries. Translation depends on a
- * {@link TranslatorConfig translator configuration}.
- */
-@Beta
-public interface Bmv2FlowRuleTranslator {
-
-    /**
-     * Returns a new BMv2 table entry equivalent to the given flow rule.
-     *
-     * @param rule a flow rule
-     * @return a BMv2 table entry
-     * @throws Bmv2FlowRuleTranslatorException if the flow rule cannot be
-     *                                         translated
-     */
-    Bmv2TableEntry translate(FlowRule rule) throws Bmv2FlowRuleTranslatorException;
-
-    /**
-     * Returns the configuration of this translator.
-     *
-     * @return a translator configuration
-     */
-    TranslatorConfig config();
-
-    /**
-     * BMv2 flow rules translator configuration. Such a configuration is used to
-     * generate table entries that are compatible with a given {@link Bmv2Model}.
-     */
-    @Beta
-    interface TranslatorConfig {
-        /**
-         * Return the {@link Bmv2Model} associated with this configuration.
-         *
-         * @return a BMv2 model
-         */
-        Bmv2Model model();
-
-        /**
-         * Returns a map describing a one-to-one relationship between BMv2
-         * header field names and ONOS criterion types. Header field names are
-         * formatted using the notation {@code header_name.field_name}
-         * representing a specific header field instance extracted by the BMv2
-         * parser (e.g. {@code ethernet.dstAddr}).
-         *
-         * @return a map where the keys represent BMv2 header field names and
-         * values are criterion types
-         */
-        Map<String, Criterion.Type> fieldToCriterionTypeMap();
-
-        /**
-         * Return a BMv2 action that is equivalent to the given ONOS traffic
-         * treatment.
-         *
-         * @param treatment a traffic treatment
-         * @return a BMv2 action object
-         * @throws Bmv2FlowRuleTranslatorException if the treatment cannot be
-         *                                         translated to a BMv2 action
-         */
-        Bmv2Action buildAction(TrafficTreatment treatment)
-                throws Bmv2FlowRuleTranslatorException;
-    }
-}

-/*
- * Copyright 2016-present Open Networking Laboratory
- *
- * 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.drivers.bmv2.translators;
-
-import com.google.common.annotations.Beta;
-import com.google.common.collect.ImmutableMap;
-import org.onlab.util.ImmutableByteSequence;
-import org.onosproject.bmv2.api.model.Bmv2Model;
-import org.onosproject.bmv2.api.runtime.Bmv2Action;
-import org.onosproject.net.PortNumber;
-import org.onosproject.net.flow.TrafficTreatment;
-import org.onosproject.net.flow.criteria.Criterion;
-import org.onosproject.net.flow.instructions.Instruction;
-import org.onosproject.net.flow.instructions.Instructions;
-
-import java.util.Map;
-
-/**
- * Implementation of a Bmv2 flow rule translator configuration for the
- * simple.p4 model.
- */
-@Beta
-public class Bmv2SimpleTranslatorConfig extends Bmv2DefaultTranslatorConfig {
-
-    // Lazily populate field map.
-    private static final Map<String, Criterion.Type> FIELD_MAP = ImmutableMap.of(
-            "standard_metadata.ingress_port", Criterion.Type.IN_PORT,
-            "ethernet.dstAddr", Criterion.Type.ETH_DST,
-            "ethernet.srcAddr", Criterion.Type.ETH_SRC,
-            "ethernet.etherType", Criterion.Type.ETH_TYPE);
-
-    /**
-     * Creates a new simple pipeline translator configuration.
-     */
-    public Bmv2SimpleTranslatorConfig(Bmv2Model model) {
-        // Populate fieldMap.
-        super(model, FIELD_MAP);
-    }
-
-    private static Bmv2Action buildDropAction() {
-        return Bmv2Action.builder()
-                .withName("_drop")
-                .build();
-    }
-
-    private static Bmv2Action buildPushToCpAction() {
-        return Bmv2Action.builder()
-                .withName("send_to_cpu")
-                .build();
-    }
-
-    private static Bmv2Action buildFwdAction(Instructions.OutputInstruction inst)
-            throws Bmv2FlowRuleTranslatorException {
-
-        Bmv2Action.Builder actionBuilder = Bmv2Action.builder();
-
-        actionBuilder.withName("fwd");
-
-        if (inst.port().isLogical()) {
-            if (inst.port() == PortNumber.CONTROLLER) {
-                return buildPushToCpAction();
-            } else {
-                throw new Bmv2FlowRuleTranslatorException(
-                        "Output logic port number not supported: " + inst);
-            }
-        }
-
-        actionBuilder.addParameter(
-                ImmutableByteSequence.copyFrom((short) inst.port().toLong()));
-
-        return actionBuilder.build();
-    }
-
-    @Override
-    public Bmv2Action buildAction(TrafficTreatment treatment)
-            throws Bmv2FlowRuleTranslatorException {
-
-
-        if (treatment.allInstructions().size() == 0) {
-            // No instructions means drop.
-            return buildDropAction();
-        } else if (treatment.allInstructions().size() > 1) {
-            // Otherwise, we understand treatments with only 1 instruction.
-            throw new Bmv2FlowRuleTranslatorException(
-                    "Treatment not supported, more than 1 instructions found: "
-                            + treatment.toString());
-        }
-
-        Instruction instruction = treatment.allInstructions().get(0);
-
-        switch (instruction.type()) {
-            case OUTPUT:
-                return buildFwdAction((Instructions.OutputInstruction) instruction);
-            case NOACTION:
-                return buildDropAction();
-            default:
-                throw new Bmv2FlowRuleTranslatorException(
-                        "Instruction type not supported: "
-                                + instruction.type().name());
-        }
-    }
-}

@@ -16,14 +16,18 @@
   ~ limitations under the License.
   ~ limitations under the License.
   -->
   -->
 <drivers>
 <drivers>
-    <driver name="bmv2-thrift" manufacturer="p4.org" hwVersion="bmv2" swVersion="unknown">
-        <behaviour api="org.onosproject.net.behaviour.PortDiscovery"
-                   impl="org.onosproject.drivers.bmv2.Bmv2PortDiscovery"/>
+    <driver name="bmv2-thrift" manufacturer="p4.org" hwVersion="bmv2" swVersion="n/a">
+        <behaviour api="org.onosproject.net.device.DeviceDescriptionDiscovery"
+                   impl="org.onosproject.drivers.bmv2.Bmv2DeviceDescriptionDiscovery"/>
         <behaviour api="org.onosproject.net.flow.FlowRuleProgrammable"
         <behaviour api="org.onosproject.net.flow.FlowRuleProgrammable"
                    impl="org.onosproject.drivers.bmv2.Bmv2FlowRuleProgrammable"/>
                    impl="org.onosproject.drivers.bmv2.Bmv2FlowRuleProgrammable"/>
         <behaviour api="org.onosproject.net.behaviour.Pipeliner"
         <behaviour api="org.onosproject.net.behaviour.Pipeliner"
                    impl="org.onosproject.drivers.bmv2.Bmv2Pipeliner"/>
                    impl="org.onosproject.drivers.bmv2.Bmv2Pipeliner"/>
         <behaviour api="org.onosproject.net.packet.PacketProgrammable"
         <behaviour api="org.onosproject.net.packet.PacketProgrammable"
                    impl="org.onosproject.drivers.bmv2.Bmv2PacketProgrammable"/>
                    impl="org.onosproject.drivers.bmv2.Bmv2PacketProgrammable"/>
+        <behaviour api="org.onosproject.net.behaviour.ExtensionSelectorResolver"
+                   impl="org.onosproject.drivers.bmv2.Bmv2ExtensionSelectorResolver"/>
+        <behaviour api="org.onosproject.net.behaviour.ExtensionTreatmentResolver"
+                   impl="org.onosproject.drivers.bmv2.Bmv2ExtensionTreatmentResolver"/>
     </driver>
     </driver>
 </drivers>
 </drivers>

-/*
- * Copyright 2014-2016 Open Networking Laboratory
- *
- * 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.drivers.bmv2;
-
-import com.eclipsesource.json.Json;
-import com.eclipsesource.json.JsonObject;
-import com.google.common.testing.EqualsTester;
-import org.junit.Before;
-import org.junit.Test;
-import org.onlab.packet.MacAddress;
-import org.onosproject.bmv2.api.model.Bmv2Model;
-import org.onosproject.bmv2.api.runtime.Bmv2TableEntry;
-import org.onosproject.bmv2.api.runtime.Bmv2TernaryMatchParam;
-import org.onosproject.core.ApplicationId;
-import org.onosproject.core.DefaultApplicationId;
-import org.onosproject.drivers.bmv2.translators.Bmv2DefaultFlowRuleTranslator;
-import org.onosproject.drivers.bmv2.translators.Bmv2FlowRuleTranslator;
-import org.onosproject.drivers.bmv2.translators.Bmv2SimpleTranslatorConfig;
-import org.onosproject.net.DeviceId;
-import org.onosproject.net.PortNumber;
-import org.onosproject.net.flow.DefaultFlowRule;
-import org.onosproject.net.flow.DefaultTrafficSelector;
-import org.onosproject.net.flow.DefaultTrafficTreatment;
-import org.onosproject.net.flow.FlowRule;
-import org.onosproject.net.flow.TrafficSelector;
-import org.onosproject.net.flow.TrafficTreatment;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.Random;
-
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.CoreMatchers.is;
-import static org.hamcrest.MatcherAssert.assertThat;
-
-/**
- * Tests for {@link Bmv2DefaultFlowRuleTranslator}.
- */
-public class Bmv2DefaultFlowRuleTranslatorTest {
-
-    private static final String JSON_CONFIG_PATH = "/simple.json";
-    private Random random = new Random();
-    private Bmv2Model model;
-    private Bmv2FlowRuleTranslator.TranslatorConfig config;
-    private Bmv2FlowRuleTranslator translator;
-
-    @Before
-    public void setUp() throws Exception {
-        InputStream inputStream = Bmv2SimpleTranslatorConfig.class
-                .getResourceAsStream(JSON_CONFIG_PATH);
-        InputStreamReader reader = new InputStreamReader(inputStream);
-        BufferedReader bufReader = new BufferedReader(reader);
-        JsonObject json = null;
-        try {
-            json = Json.parse(bufReader).asObject();
-        } catch (IOException e) {
-            throw new RuntimeException("Unable to parse JSON file: " + e.getMessage());
-        }
-
-        this.model = Bmv2Model.parse(json);
-        this.config = new Bmv2SimpleTranslatorConfig(model);
-        this.translator = new Bmv2DefaultFlowRuleTranslator(config);
-
-    }
-
-
-    @Test
-    public void testCompiler() throws Exception {
-
-        DeviceId deviceId = DeviceId.NONE;
-        ApplicationId appId = new DefaultApplicationId(1, "test");
-        int tableId = 0;
-        MacAddress ethDstMac = MacAddress.valueOf(random.nextLong());
-        MacAddress ethSrcMac = MacAddress.valueOf(random.nextLong());
-        short ethType = (short) (0x0000FFFF & random.nextInt());
-        short outPort = (short) random.nextInt(65);
-        short inPort = (short) random.nextInt(65);
-        int timeout = random.nextInt(100);
-        int priority = random.nextInt(100);
-
-        TrafficSelector matchInPort1 = DefaultTrafficSelector
-                .builder()
-                .matchInPort(PortNumber.portNumber(inPort))
-                .matchEthDst(ethDstMac)
-                .matchEthSrc(ethSrcMac)
-                .matchEthType(ethType)
-                .build();
-
-        TrafficTreatment outPort2 = DefaultTrafficTreatment
-                .builder()
-                .setOutput(PortNumber.portNumber(outPort))
-                .build();
-
-        FlowRule rule1 = DefaultFlowRule.builder()
-                .forDevice(deviceId)
-                .forTable(tableId)
-                .fromApp(appId)
-                .withSelector(matchInPort1)
-                .withTreatment(outPort2)
-                .makeTemporary(timeout)
-                .withPriority(priority)
-                .build();
-
-        FlowRule rule2 = DefaultFlowRule.builder()
-                .forDevice(deviceId)
-                .forTable(tableId)
-                .fromApp(appId)
-                .withSelector(matchInPort1)
-                .withTreatment(outPort2)
-                .makeTemporary(timeout)
-                .withPriority(priority)
-                .build();
-
-        Bmv2TableEntry entry1 = translator.translate(rule1);
-        Bmv2TableEntry entry2 = translator.translate(rule1);
-
-        // check equality, i.e. same rules must produce same entries
-        new EqualsTester()
-                .addEqualityGroup(rule1, rule2)
-                .addEqualityGroup(entry1, entry2)
-                .testEquals();
-
-        int numMatchParams = model.table(0).keys().size();
-        // parse values stored in entry1
-        Bmv2TernaryMatchParam inPortParam = (Bmv2TernaryMatchParam) entry1.matchKey().matchParams().get(0);
-        Bmv2TernaryMatchParam ethDstParam = (Bmv2TernaryMatchParam) entry1.matchKey().matchParams().get(1);
-        Bmv2TernaryMatchParam ethSrcParam = (Bmv2TernaryMatchParam) entry1.matchKey().matchParams().get(2);
-        Bmv2TernaryMatchParam ethTypeParam = (Bmv2TernaryMatchParam) entry1.matchKey().matchParams().get(3);
-        double expectedTimeout = (double) (model.table(0).hasTimeouts() ? rule1.timeout() : -1);
-
-        // check that the number of parameters in the entry is the same as the number of table keys
-        assertThat("Incorrect number of match parameters",
-                   entry1.matchKey().matchParams().size(), is(equalTo(numMatchParams)));
-
-        // check that values stored in entry are the same used for the flow rule
-        assertThat("Incorrect inPort match param value",
-                   inPortParam.value().asReadOnlyBuffer().getShort(), is(equalTo(inPort)));
-        assertThat("Incorrect ethDestMac match param value",
-                   ethDstParam.value().asArray(), is(equalTo(ethDstMac.toBytes())));
-        assertThat("Incorrect ethSrcMac match param value",
-                   ethSrcParam.value().asArray(), is(equalTo(ethSrcMac.toBytes())));
-        assertThat("Incorrect ethType match param value",
-                   ethTypeParam.value().asReadOnlyBuffer().getShort(), is(equalTo(ethType)));
-        assertThat("Incorrect priority value",
-                   entry1.priority(), is(equalTo(Integer.MAX_VALUE - rule1.priority())));
-        assertThat("Incorrect timeout value",
-                   entry1.timeout(), is(equalTo(expectedTimeout)));
-
-    }
-}
\ No newline at end of file

@@ -41,7 +41,7 @@
         <module>utilities</module>
         <module>utilities</module>
         <module>lumentum</module>
         <module>lumentum</module>
         <module>bti</module>
         <module>bti</module>
-        <!--<module>bmv2</module>-->
+        <module>bmv2</module>
         <module>corsa</module>
         <module>corsa</module>
         <module>optical</module>
         <module>optical</module>
     </modules>
     </modules>

@@ -22,6 +22,7 @@
         <artifactId>onos-bmv2-protocol</artifactId>
         <artifactId>onos-bmv2-protocol</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
 
 

@@ -22,6 +22,7 @@
         <artifactId>onos-bmv2-protocol</artifactId>
         <artifactId>onos-bmv2-protocol</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
 
 

@@ -22,6 +22,7 @@
         <artifactId>onos-protocols</artifactId>
         <artifactId>onos-protocols</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
 
 

@@ -22,6 +22,7 @@
         <artifactId>onos-bmv2-protocol</artifactId>
         <artifactId>onos-bmv2-protocol</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
 
 
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>

@@ -22,7 +22,9 @@
         <bundle>mvn:${project.groupId}/onos-bmv2-provider-device/${project.version}</bundle>
         <bundle>mvn:${project.groupId}/onos-bmv2-provider-device/${project.version}</bundle>
         <bundle>mvn:${project.groupId}/onos-bmv2-provider-packet/${project.version}</bundle>
         <bundle>mvn:${project.groupId}/onos-bmv2-provider-packet/${project.version}</bundle>
         <bundle>mvn:org.apache.thrift/libthrift/0.9.3</bundle>
         <bundle>mvn:org.apache.thrift/libthrift/0.9.3</bundle>
-        <bundle>mvn:${project.groupId}/onos-bmv2-protocol/${project.version}</bundle>
+        <bundle>mvn:${project.groupId}/onos-bmv2-protocol-api/${project.version}</bundle>
+        <bundle>mvn:${project.groupId}/onos-bmv2-protocol-ctl/${project.version}</bundle>
+        <bundle>mvn:${project.groupId}/onos-bmv2-protocol-thrift-api/${project.version}</bundle>
     </feature>
     </feature>
 </features>
 </features>
 
 

@@ -22,6 +22,7 @@
         <artifactId>onos-bmv2-providers</artifactId>
         <artifactId>onos-bmv2-providers</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
 
 
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
@@ -33,7 +34,7 @@
 
 
     <properties>
     <properties>
         <onos.app.name>org.onosproject.bmv2</onos.app.name>
         <onos.app.name>org.onosproject.bmv2</onos.app.name>
-        <onos.app.title>BMv2 Provider</onos.app.title>
+        <onos.app.title>BMv2 Providers</onos.app.title>
         <onos.app.category>Provider</onos.app.category>
         <onos.app.category>Provider</onos.app.category>
     </properties>
     </properties>
 
 

@@ -22,6 +22,7 @@
         <artifactId>onos-bmv2-providers</artifactId>
         <artifactId>onos-bmv2-providers</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
 
 
@@ -33,12 +34,12 @@
     <dependencies>
     <dependencies>
         <dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
             <groupId>org.onosproject</groupId>
-            <artifactId>onos-drivers-bmv2</artifactId>
+            <artifactId>onos-core-common</artifactId>
             <version>${project.version}</version>
             <version>${project.version}</version>
         </dependency>
         </dependency>
         <dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
             <groupId>org.onosproject</groupId>
-            <artifactId>onos-core-common</artifactId>
+            <artifactId>onos-bmv2-protocol-api</artifactId>
             <version>${project.version}</version>
             <version>${project.version}</version>
         </dependency>
         </dependency>
     </dependencies>
     </dependencies>

+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.provider.bmv2.device.impl;
+
+import com.google.common.collect.Lists;
+import org.apache.commons.lang3.tuple.Pair;
+import org.onosproject.bmv2.api.runtime.Bmv2Action;
+import org.onosproject.bmv2.api.runtime.Bmv2DeviceAgent;
+import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException;
+import org.onosproject.net.Port;
+import org.onosproject.net.device.DefaultPortStatistics;
+import org.onosproject.net.device.PortStatistics;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * Utility class to read port statistics from a BMv2 device.
+ */
+final class Bmv2PortStatisticsGetter {
+
+    // TODO: make counters configuration dependent
+
+    private static final String TABLE_NAME = "port_count_table";
+    private static final String ACTION_NAME = "count_packet";
+    private static final String EGRESS_COUNTER = "egress_port_counter";
+    private static final String INGRESS_COUNTER = "ingress_port_counter";
+
+    private static final Logger log = LoggerFactory.getLogger(Bmv2PortStatisticsGetter.class);
+
+    private Bmv2PortStatisticsGetter() {
+        // ban constructor.
+    }
+
+    /**
+     * Returns a collection of port statistics for given ports using the given BMv2 device agent.
+     *
+     * @param deviceAgent a device agent
+     * @param ports       a collection of ports
+     * @return a collection of port statistics
+     */
+    static Collection<PortStatistics> getPortStatistics(Bmv2DeviceAgent deviceAgent, Collection<Port> ports) {
+
+        List<PortStatistics> ps = Lists.newArrayList();
+
+        for (Port port : ports) {
+            int portNumber = (int) port.number().toLong();
+            try {
+                Pair<Long, Long> egressCounter = deviceAgent.readCounter(EGRESS_COUNTER, portNumber);
+                Pair<Long, Long> ingressCounter = deviceAgent.readCounter(INGRESS_COUNTER, portNumber);
+                ps.add(DefaultPortStatistics.builder()
+                               .setPort(portNumber)
+                               .setBytesSent(egressCounter.getLeft())
+                               .setPacketsSent(egressCounter.getRight())
+                               .setBytesReceived(ingressCounter.getLeft())
+                               .setPacketsReceived(ingressCounter.getRight())
+                               .build());
+            } catch (Bmv2RuntimeException e) {
+                log.info("Unable to read port statistics from {}: {}", port, e.explain());
+            }
+        }
+
+        return ps;
+    }
+
+    /**
+     * Initialize port counters on the given device agent.
+     *
+     * @param deviceAgent a device agent.
+     */
+    static void initCounters(Bmv2DeviceAgent deviceAgent) {
+        try {
+            deviceAgent.setTableDefaultAction(TABLE_NAME, Bmv2Action.builder().withName(ACTION_NAME).build());
+        } catch (Bmv2RuntimeException e) {
+            log.debug("Failed to provision counters on {}: {}", deviceAgent.deviceId(), e.explain());
+        }
+    }
+}
+

@@ -22,6 +22,7 @@
         <artifactId>onos-bmv2-providers</artifactId>
         <artifactId>onos-bmv2-providers</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>
 
 
@@ -34,12 +35,12 @@
     <dependencies>
     <dependencies>
         <dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
             <groupId>org.onosproject</groupId>
-            <artifactId>onos-drivers-bmv2</artifactId>
+            <artifactId>onos-core-common</artifactId>
             <version>${project.version}</version>
             <version>${project.version}</version>
         </dependency>
         </dependency>
         <dependency>
         <dependency>
             <groupId>org.onosproject</groupId>
             <groupId>org.onosproject</groupId>
-            <artifactId>onos-core-common</artifactId>
+            <artifactId>onos-bmv2-protocol-api</artifactId>
             <version>${project.version}</version>
             <version>${project.version}</version>
         </dependency>
         </dependency>
     </dependencies>
     </dependencies>

@@ -23,12 +23,14 @@ import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
 import org.onlab.packet.Ethernet;
 import org.onlab.packet.Ethernet;
 import org.onlab.util.ImmutableByteSequence;
 import org.onlab.util.ImmutableByteSequence;
-import org.onosproject.bmv2.api.runtime.Bmv2ControlPlaneServer;
 import org.onosproject.bmv2.api.runtime.Bmv2Device;
 import org.onosproject.bmv2.api.runtime.Bmv2Device;
+import org.onosproject.bmv2.api.service.Bmv2Controller;
+import org.onosproject.bmv2.api.service.Bmv2PacketListener;
 import org.onosproject.core.CoreService;
 import org.onosproject.core.CoreService;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.ConnectPoint;
 import org.onosproject.net.Device;
 import org.onosproject.net.Device;
 import org.onosproject.net.DeviceId;
 import org.onosproject.net.DeviceId;
+import org.onosproject.net.Port;
 import org.onosproject.net.PortNumber;
 import org.onosproject.net.PortNumber;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.device.DeviceService;
 import org.onosproject.net.flow.DefaultTrafficTreatment;
 import org.onosproject.net.flow.DefaultTrafficTreatment;
@@ -49,6 +51,12 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.slf4j.LoggerFactory;
 
 
 import java.nio.ByteBuffer;
 import java.nio.ByteBuffer;
+import java.util.Optional;
+
+import static org.onosproject.net.PortNumber.FLOOD;
+import static org.onosproject.net.flow.DefaultTrafficTreatment.emptyTreatment;
+import static org.onosproject.net.flow.instructions.Instruction.Type.OUTPUT;
+import static org.onosproject.net.flow.instructions.Instructions.OutputInstruction;
 
 
 /**
 /**
  * Implementation of a packet provider for BMv2.
  * Implementation of a packet provider for BMv2.
@@ -56,11 +64,11 @@ import java.nio.ByteBuffer;
 @Component(immediate = true)
 @Component(immediate = true)
 public class Bmv2PacketProvider extends AbstractProvider implements PacketProvider {
 public class Bmv2PacketProvider extends AbstractProvider implements PacketProvider {
 
 
-    private static final Logger LOG = LoggerFactory.getLogger(Bmv2PacketProvider.class);
+    private final Logger log = LoggerFactory.getLogger(Bmv2PacketProvider.class);
     private static final String APP_NAME = "org.onosproject.bmv2";
     private static final String APP_NAME = "org.onosproject.bmv2";
 
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
-    protected Bmv2ControlPlaneServer controlPlaneServer;
+    protected Bmv2Controller controller;
 
 
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     @Reference(cardinality = ReferenceCardinality.MANDATORY_UNARY)
     protected CoreService coreService;
     protected CoreService coreService;
@@ -86,28 +94,28 @@ public class Bmv2PacketProvider extends AbstractProvider implements PacketProvid
     protected void activate() {
     protected void activate() {
         providerService = providerRegistry.register(this);
         providerService = providerRegistry.register(this);
         coreService.registerApplication(APP_NAME);
         coreService.registerApplication(APP_NAME);
-        controlPlaneServer.addPacketListener(packetListener);
-        LOG.info("Started");
+        controller.addPacketListener(packetListener);
+        log.info("Started");
     }
     }
 
 
     @Deactivate
     @Deactivate
     public void deactivate() {
     public void deactivate() {
-        controlPlaneServer.removePacketListener(packetListener);
+        controller.removePacketListener(packetListener);
         providerRegistry.unregister(this);
         providerRegistry.unregister(this);
         providerService = null;
         providerService = null;
-        LOG.info("Stopped");
+        log.info("Stopped");
     }
     }
 
 
     @Override
     @Override
     public void emit(OutboundPacket packet) {
     public void emit(OutboundPacket packet) {
         if (packet != null) {
         if (packet != null) {
-            DeviceId did = packet.sendThrough();
-            Device device = deviceService.getDevice(did);
+            DeviceId deviceId = packet.sendThrough();
+            Device device = deviceService.getDevice(deviceId);
             if (device.is(PacketProgrammable.class)) {
             if (device.is(PacketProgrammable.class)) {
                 PacketProgrammable packetProgrammable = device.as(PacketProgrammable.class);
                 PacketProgrammable packetProgrammable = device.as(PacketProgrammable.class);
                 packetProgrammable.emit(packet);
                 packetProgrammable.emit(packet);
             } else {
             } else {
-                LOG.info("Unable to send packet, no PacketProgrammable behavior for device {}", did);
+                log.info("No PacketProgrammable behavior for device {}", deviceId);
             }
             }
         }
         }
     }
     }
@@ -117,47 +125,75 @@ public class Bmv2PacketProvider extends AbstractProvider implements PacketProvid
      */
      */
     private class Bmv2PacketContext extends DefaultPacketContext {
     private class Bmv2PacketContext extends DefaultPacketContext {
 
 
-        public Bmv2PacketContext(long time, InboundPacket inPkt, OutboundPacket outPkt, boolean block) {
+        Bmv2PacketContext(long time, InboundPacket inPkt, OutboundPacket outPkt, boolean block) {
             super(time, inPkt, outPkt, block);
             super(time, inPkt, outPkt, block);
         }
         }
 
 
         @Override
         @Override
         public void send() {
         public void send() {
-            if (!this.block()) {
-                if (this.outPacket().treatment() == null) {
-                    TrafficTreatment treatment = (this.treatmentBuilder() == null)
-                            ? DefaultTrafficTreatment.emptyTreatment()
-                            : this.treatmentBuilder().build();
-                    OutboundPacket newPkt = new DefaultOutboundPacket(this.outPacket().sendThrough(),
-                                                                      treatment,
-                                                                      this.outPacket().data());
-                    emit(newPkt);
-                } else {
-                    emit(outPacket());
-                }
+
+            if (this.block()) {
+                log.info("Unable to send, packet context not blocked");
+                return;
+            }
+
+            DeviceId deviceId = outPacket().sendThrough();
+            ByteBuffer rawData = outPacket().data();
+
+            TrafficTreatment treatment;
+            if (outPacket().treatment() == null) {
+                treatment = (treatmentBuilder() == null) ? emptyTreatment() : treatmentBuilder().build();
+            } else {
+                treatment = outPacket().treatment();
+            }
+
+            // BMv2 doesn't support FLOOD for packet-outs.
+            // Workaround here is to perform multiple emits, one for each device port != packet inPort.
+            Optional<OutputInstruction> floodInst = treatment.allInstructions()
+                    .stream()
+                    .filter(i -> i.type().equals(OUTPUT))
+                    .map(i -> (OutputInstruction) i)
+                    .filter(i -> i.port().equals(FLOOD))
+                    .findAny();
+
+            if (floodInst.isPresent() && treatment.allInstructions().size() == 1) {
+                // Only one instruction and is FLOOD. Do the trick.
+                PortNumber inPort = inPacket().receivedFrom().port();
+                deviceService.getPorts(outPacket().sendThrough())
+                        .stream()
+                        .map(Port::number)
+                        .filter(port -> !port.equals(inPort))
+                        .map(outPort -> DefaultTrafficTreatment.builder().setOutput(outPort).build())
+                        .map(outTreatment -> new DefaultOutboundPacket(deviceId, outTreatment, rawData))
+                        .forEach(Bmv2PacketProvider.this::emit);
             } else {
             } else {
-                LOG.info("Unable to send, packet context not blocked");
+                // Not FLOOD treatment, what to do is up to driver.
+                emit(new DefaultOutboundPacket(deviceId, treatment, rawData));
             }
             }
         }
         }
     }
     }
 
 
     /**
     /**
-     * Internal packet listener to get packet events from the Bmv2ControlPlaneServer.
+     * Internal packet listener to handle packet-in events received from the BMv2 controller.
      */
      */
-    private class InternalPacketListener implements Bmv2ControlPlaneServer.PacketListener {
+    private class InternalPacketListener implements Bmv2PacketListener {
+
         @Override
         @Override
         public void handlePacketIn(Bmv2Device device, int inputPort, long reason, int tableId, int contextId,
         public void handlePacketIn(Bmv2Device device, int inputPort, long reason, int tableId, int contextId,
                                    ImmutableByteSequence packet) {
                                    ImmutableByteSequence packet) {
+            Ethernet ethPkt = new Ethernet();
+            ethPkt.deserialize(packet.asArray(), 0, packet.size());
 
 
-            Ethernet eth = new Ethernet();
-            eth.deserialize(packet.asArray(), 0, packet.size());
+            DeviceId deviceId = device.asDeviceId();
+            ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(inputPort));
+
+            ByteBuffer rawData = ByteBuffer.wrap(packet.asArray());
+
+            InboundPacket inPkt = new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
+            OutboundPacket outPkt = new DefaultOutboundPacket(deviceId, null, rawData);
 
 
-            InboundPacket inPkt = new DefaultInboundPacket(new ConnectPoint(device.asDeviceId(),
-                                                                            PortNumber.portNumber(inputPort)),
-                                                           eth, ByteBuffer.wrap(packet.asArray()));
-            OutboundPacket outPkt = new DefaultOutboundPacket(device.asDeviceId(), null,
-                                                              ByteBuffer.wrap(packet.asArray()));
             PacketContext pktCtx = new Bmv2PacketContext(System.currentTimeMillis(), inPkt, outPkt, false);
             PacketContext pktCtx = new Bmv2PacketContext(System.currentTimeMillis(), inPkt, outPkt, false);
+
             providerService.processPacket(pktCtx);
             providerService.processPacket(pktCtx);
         }
         }
     }
     }

@@ -22,6 +22,7 @@
         <artifactId>onos-providers</artifactId>
         <artifactId>onos-providers</artifactId>
         <groupId>org.onosproject</groupId>
         <groupId>org.onosproject</groupId>
         <version>1.6.0-SNAPSHOT</version>
         <version>1.6.0-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
     </parent>
     </parent>
 
 
     <modelVersion>4.0.0</modelVersion>
     <modelVersion>4.0.0</modelVersion>

@@ -46,7 +46,7 @@
         <module>lldpcommon</module>
         <module>lldpcommon</module>
         <module>lldp</module>
         <module>lldp</module>
         <module>netcfglinks</module>
         <module>netcfglinks</module>
-        <!--<module>bmv2</module>-->
+        <module>bmv2</module>
         <module>isis</module>
         <module>isis</module>
     </modules>
     </modules>