Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2017-present Open Networking Foundation |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 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 | |
Andrea Campanella | 0288c87 | 2017-08-07 18:32:51 +0200 | [diff] [blame] | 17 | package org.onosproject.drivers.p4runtime; |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 18 | |
Andrea Campanella | 378e21a | 2017-06-07 12:09:59 +0200 | [diff] [blame] | 19 | import org.onosproject.net.DeviceId; |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 20 | import org.onosproject.net.MastershipRole; |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 21 | import org.onosproject.net.device.DeviceAgentListener; |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 22 | import org.onosproject.net.device.DeviceHandshaker; |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 23 | import org.onosproject.net.provider.ProviderId; |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 24 | import org.onosproject.p4runtime.api.P4RuntimeClient; |
Carmelo Cascone | 59f57de | 2017-07-11 19:55:09 -0400 | [diff] [blame] | 25 | import org.onosproject.p4runtime.api.P4RuntimeController; |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 26 | |
| 27 | import java.util.concurrent.CompletableFuture; |
| 28 | |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 29 | /** |
Carmelo Cascone | e3a7c74 | 2017-09-01 01:25:52 +0200 | [diff] [blame] | 30 | * Implementation of DeviceHandshaker for P4Runtime. |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 31 | */ |
Carmelo Cascone | e3a7c74 | 2017-09-01 01:25:52 +0200 | [diff] [blame] | 32 | public class P4RuntimeHandshaker extends AbstractP4RuntimeHandlerBehaviour implements DeviceHandshaker { |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 33 | |
| 34 | @Override |
| 35 | public CompletableFuture<Boolean> connect() { |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 36 | return CompletableFuture |
| 37 | .supplyAsync(super::createClient) |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 38 | .thenComposeAsync(client -> { |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 39 | if (client == null) { |
| 40 | return CompletableFuture.completedFuture(false); |
| 41 | } |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 42 | return client.startStreamChannel(); |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 43 | }); |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 44 | } |
| 45 | |
| 46 | @Override |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 47 | public boolean isConnected() { |
| 48 | final P4RuntimeController controller = handler().get(P4RuntimeController.class); |
| 49 | final DeviceId deviceId = handler().data().deviceId(); |
| 50 | final P4RuntimeClient client = controller.getClient(deviceId); |
| 51 | return client != null && client.isStreamChannelOpen(); |
| 52 | } |
| 53 | |
| 54 | @Override |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 55 | public CompletableFuture<Boolean> disconnect() { |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 56 | final P4RuntimeController controller = handler().get(P4RuntimeController.class); |
| 57 | final DeviceId deviceId = handler().data().deviceId(); |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 58 | final P4RuntimeClient client = controller.getClient(deviceId); |
| 59 | if (client == null) { |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 60 | return CompletableFuture.completedFuture(true); |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 61 | } |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 62 | return client.shutdown() |
| 63 | .thenApplyAsync(v -> { |
| 64 | controller.removeClient(deviceId); |
| 65 | return true; |
| 66 | }); |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 67 | } |
| 68 | |
| 69 | @Override |
| 70 | public CompletableFuture<Boolean> isReachable() { |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 71 | return CompletableFuture |
| 72 | // P4RuntimeController requires a client to be created to |
| 73 | // check for reachability. |
| 74 | .supplyAsync(super::createClient) |
| 75 | .thenApplyAsync(client -> { |
| 76 | if (client == null) { |
| 77 | return false; |
| 78 | } |
| 79 | return handler() |
| 80 | .get(P4RuntimeController.class) |
| 81 | .isReachable(handler().data().deviceId()); |
| 82 | }); |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 83 | } |
| 84 | |
| 85 | @Override |
Carmelo Cascone | e5b2872 | 2018-06-22 17:28:28 +0200 | [diff] [blame] | 86 | public void roleChanged(MastershipRole newRole) { |
| 87 | if (setupBehaviour() && newRole.equals(MastershipRole.MASTER)) { |
| 88 | client.becomeMaster().thenAcceptAsync(result -> { |
| 89 | if (!result) { |
| 90 | log.error("Unable to notify mastership role {} to {}", |
| 91 | newRole, deviceId); |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 92 | } |
| 93 | }); |
Yi Tseng | 3e7f145 | 2017-10-20 10:31:53 -0700 | [diff] [blame] | 94 | } |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 95 | } |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 96 | |
| 97 | @Override |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 98 | public MastershipRole getRole() { |
| 99 | final P4RuntimeController controller = handler().get(P4RuntimeController.class); |
| 100 | final DeviceId deviceId = handler().data().deviceId(); |
| 101 | final P4RuntimeClient client = controller.getClient(deviceId); |
| 102 | if (client == null || !client.isStreamChannelOpen()) { |
| 103 | return MastershipRole.NONE; |
| 104 | } |
| 105 | return client.isMaster() ? MastershipRole.MASTER : MastershipRole.STANDBY; |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | @Override |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 109 | public void addDeviceAgentListener(ProviderId providerId, DeviceAgentListener listener) { |
| 110 | // Don't use controller/deviceId class variables as they might be uninitialized. |
| 111 | handler().get(P4RuntimeController.class) |
| 112 | .addDeviceAgentListener(data().deviceId(), providerId, listener); |
| 113 | } |
| 114 | |
| 115 | @Override |
| 116 | public void removeDeviceAgentListener(ProviderId providerId) { |
Carmelo Cascone | 7044efd | 2018-07-06 13:01:36 +0200 | [diff] [blame] | 117 | // Don't use controller/deviceId class variable as they might be uninitialized. |
Carmelo Cascone | 158b8c4 | 2018-07-04 19:42:37 +0200 | [diff] [blame] | 118 | handler().get(P4RuntimeController.class) |
Carmelo Cascone | 9e4972c | 2018-08-30 00:29:16 -0700 | [diff] [blame] | 119 | .removeDeviceAgentListener(data().deviceId(), providerId); |
Andrea Campanella | 1e57344 | 2018-05-17 17:07:13 +0200 | [diff] [blame] | 120 | } |
Andrea Campanella | 241896c | 2017-05-10 13:11:04 -0700 | [diff] [blame] | 121 | } |