Creating a p4runtime default driver to avoid code duplication between bmv2 and barefoot drivers
Change-Id: Id7f16a284c65278ec1a9ec682da01ddf020343c8
diff --git a/drivers/p4runtime/src/main/java/org/onosproject/drivers/p4runtime/P4RuntimePacketProgrammable.java b/drivers/p4runtime/src/main/java/org/onosproject/drivers/p4runtime/P4RuntimePacketProgrammable.java
new file mode 100644
index 0000000..7a11376
--- /dev/null
+++ b/drivers/p4runtime/src/main/java/org/onosproject/drivers/p4runtime/P4RuntimePacketProgrammable.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2017-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.drivers.p4runtime;
+
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.device.DeviceService;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.net.packet.OutboundPacket;
+import org.onosproject.net.packet.PacketProgrammable;
+import org.onosproject.net.pi.model.PiPipeconf;
+import org.onosproject.net.pi.model.PiPipelineInterpreter;
+import org.onosproject.net.pi.runtime.PiPacketOperation;
+import org.onosproject.net.pi.runtime.PiPipeconfService;
+import org.onosproject.p4runtime.api.P4RuntimeClient;
+import org.onosproject.p4runtime.api.P4RuntimeController;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.Collection;
+
+/**
+ * Packet Programmable behaviour for BMv2 devices.
+ */
+public class P4RuntimePacketProgrammable extends AbstractHandlerBehaviour implements PacketProgrammable {
+ private final Logger log = LoggerFactory.getLogger(getClass());
+
+ @Override
+ public void emit(OutboundPacket packet) {
+
+ DeviceId deviceId = handler().data().deviceId();
+ P4RuntimeController controller = handler().get(P4RuntimeController.class);
+ if (!controller.hasClient(deviceId)) {
+ log.warn("Unable to find client for {}, aborting the sending packet", deviceId);
+ return;
+ }
+
+ P4RuntimeClient client = controller.getClient(deviceId);
+ PiPipeconfService piPipeconfService = handler().get(PiPipeconfService.class);
+
+ final PiPipeconf pipeconf;
+ if (piPipeconfService.ofDevice(deviceId).isPresent() &&
+ piPipeconfService.getPipeconf(piPipeconfService.ofDevice(deviceId).get()).isPresent()) {
+ pipeconf = piPipeconfService.getPipeconf(piPipeconfService.ofDevice(deviceId).get()).get();
+ } else {
+ log.warn("Unable to get the pipeconf of {}", deviceId);
+ return;
+ }
+
+ DeviceService deviceService = handler().get(DeviceService.class);
+ Device device = deviceService.getDevice(deviceId);
+ final PiPipelineInterpreter interpreter = device.is(PiPipelineInterpreter.class)
+ ? device.as(PiPipelineInterpreter.class) : null;
+ if (!device.is(PiPipelineInterpreter.class)) {
+ log.warn("Device {} unable to instantiate interpreter of pipeconf {}", deviceId, pipeconf.id());
+ return;
+ }
+
+ try {
+ Collection<PiPacketOperation> operations = interpreter.mapOutboundPacket(packet);
+ operations.forEach(piPacketOperation -> {
+ log.debug("Doing PiPacketOperation {}", piPacketOperation);
+ client.packetOut(piPacketOperation, pipeconf);
+ });
+ } catch (PiPipelineInterpreter.PiInterpreterException e) {
+ log.error("Interpreter of pipeconf {} was unable to translate outbound packet: {}",
+ pipeconf.id(), e.getMessage());
+ }
+ }
+}