Carmelo Cascone | e3a7c74 | 2017-09-01 01:25:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.drivers.p4runtime; |
| 18 | |
| 19 | import io.grpc.ManagedChannelBuilder; |
| 20 | import io.grpc.netty.NettyChannelBuilder; |
| 21 | import org.onosproject.net.Device; |
| 22 | import org.onosproject.net.DeviceId; |
| 23 | import org.onosproject.net.device.DeviceService; |
| 24 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 25 | import org.onosproject.net.pi.model.PiPipeconf; |
Carmelo Cascone | 39c28ca | 2017-11-15 13:03:57 -0800 | [diff] [blame] | 26 | import org.onosproject.net.pi.service.PiPipeconfService; |
| 27 | import org.onosproject.net.pi.service.PiTranslationService; |
Carmelo Cascone | e3a7c74 | 2017-09-01 01:25:52 +0200 | [diff] [blame] | 28 | import org.onosproject.p4runtime.api.P4RuntimeClient; |
| 29 | import org.onosproject.p4runtime.api.P4RuntimeController; |
| 30 | import org.slf4j.Logger; |
| 31 | import org.slf4j.LoggerFactory; |
| 32 | |
| 33 | /** |
| 34 | * Abstract implementation of a behaviour handler for a P4Runtime device. |
| 35 | */ |
| 36 | public class AbstractP4RuntimeHandlerBehaviour extends AbstractHandlerBehaviour { |
| 37 | |
| 38 | public static final String P4RUNTIME_SERVER_ADDR_KEY = "p4runtime_ip"; |
| 39 | public static final String P4RUNTIME_SERVER_PORT_KEY = "p4runtime_port"; |
| 40 | public static final String P4RUNTIME_DEVICE_ID_KEY = "p4runtime_deviceId"; |
| 41 | |
| 42 | protected final Logger log = LoggerFactory.getLogger(getClass()); |
| 43 | |
| 44 | // Initialized by setupBehaviour() |
| 45 | protected DeviceId deviceId; |
| 46 | protected DeviceService deviceService; |
| 47 | protected Device device; |
| 48 | protected P4RuntimeController controller; |
| 49 | protected PiPipeconf pipeconf; |
| 50 | protected P4RuntimeClient client; |
Carmelo Cascone | 87b9b39 | 2017-10-02 18:33:20 +0200 | [diff] [blame] | 51 | protected PiTranslationService piTranslationService; |
Carmelo Cascone | e3a7c74 | 2017-09-01 01:25:52 +0200 | [diff] [blame] | 52 | |
| 53 | /** |
| 54 | * Initializes this behaviour attributes. Returns true if the operation was successful, false otherwise. This method |
| 55 | * assumes that the P4runtime controller already has a client for this device and that the device has been created |
| 56 | * in the core. |
| 57 | * |
| 58 | * @return true if successful, false otherwise |
| 59 | */ |
| 60 | protected boolean setupBehaviour() { |
| 61 | deviceId = handler().data().deviceId(); |
| 62 | |
| 63 | deviceService = handler().get(DeviceService.class); |
| 64 | device = deviceService.getDevice(deviceId); |
| 65 | if (device == null) { |
| 66 | log.warn("Unable to find device with id {}, aborting operation", deviceId); |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | controller = handler().get(P4RuntimeController.class); |
| 71 | if (!controller.hasClient(deviceId)) { |
| 72 | log.warn("Unable to find client for {}, aborting operation", deviceId); |
| 73 | return false; |
| 74 | } |
| 75 | client = controller.getClient(deviceId); |
| 76 | |
| 77 | PiPipeconfService piPipeconfService = handler().get(PiPipeconfService.class); |
| 78 | if (!piPipeconfService.ofDevice(deviceId).isPresent() || |
| 79 | !piPipeconfService.getPipeconf(piPipeconfService.ofDevice(deviceId).get()).isPresent()) { |
| 80 | log.warn("Unable to get the pipeconf of {}, aborting operation", deviceId); |
| 81 | return false; |
| 82 | } |
| 83 | pipeconf = piPipeconfService.getPipeconf(piPipeconfService.ofDevice(deviceId).get()).get(); |
| 84 | |
Carmelo Cascone | 87b9b39 | 2017-10-02 18:33:20 +0200 | [diff] [blame] | 85 | piTranslationService = handler().get(PiTranslationService.class); |
| 86 | |
Carmelo Cascone | e3a7c74 | 2017-09-01 01:25:52 +0200 | [diff] [blame] | 87 | return true; |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * Create a P4Runtime client for this device. Returns true if the operation was successful, false otherwise. |
| 92 | * |
| 93 | * @return true if successful, false otherwise |
| 94 | */ |
| 95 | protected boolean createClient() { |
| 96 | deviceId = handler().data().deviceId(); |
| 97 | controller = handler().get(P4RuntimeController.class); |
| 98 | |
| 99 | String serverAddr = this.data().value(P4RUNTIME_SERVER_ADDR_KEY); |
| 100 | String serverPortString = this.data().value(P4RUNTIME_SERVER_PORT_KEY); |
| 101 | String p4DeviceIdString = this.data().value(P4RUNTIME_DEVICE_ID_KEY); |
| 102 | |
| 103 | if (serverAddr == null || serverPortString == null || p4DeviceIdString == null) { |
| 104 | log.warn("Unable to create client for {}, missing driver data key (required is {}, {}, and {})", |
| 105 | deviceId, P4RUNTIME_SERVER_ADDR_KEY, P4RUNTIME_SERVER_PORT_KEY, P4RUNTIME_DEVICE_ID_KEY); |
| 106 | return false; |
| 107 | } |
| 108 | |
| 109 | ManagedChannelBuilder channelBuilder = NettyChannelBuilder |
| 110 | .forAddress(serverAddr, Integer.valueOf(serverPortString)) |
| 111 | .usePlaintext(true); |
| 112 | |
| 113 | if (!controller.createClient(deviceId, Long.parseUnsignedLong(p4DeviceIdString), channelBuilder)) { |
| 114 | log.warn("Unable to create client for {}, aborting operation", deviceId); |
| 115 | return false; |
| 116 | } |
| 117 | |
| 118 | return true; |
| 119 | } |
| 120 | } |