Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 1 | /* |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 2 | * Copyright 2016-present Open Networking Laboratory |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [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 | |
| 17 | package org.onosproject.drivers.bmv2; |
| 18 | |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 19 | import com.google.common.collect.Lists; |
| 20 | import com.google.common.collect.Maps; |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 21 | import org.apache.commons.lang3.tuple.Pair; |
Carmelo Cascone | fbc577b | 2016-06-17 23:19:09 -0700 | [diff] [blame] | 22 | import org.onlab.osgi.ServiceNotFoundException; |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 23 | import org.onosproject.bmv2.api.context.Bmv2Configuration; |
| 24 | import org.onosproject.bmv2.api.context.Bmv2DeviceContext; |
| 25 | import org.onosproject.bmv2.api.context.Bmv2FlowRuleTranslator; |
| 26 | import org.onosproject.bmv2.api.context.Bmv2FlowRuleTranslatorException; |
| 27 | import org.onosproject.bmv2.api.context.Bmv2Interpreter; |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 28 | import org.onosproject.bmv2.api.context.Bmv2TableModel; |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 29 | import org.onosproject.bmv2.api.runtime.Bmv2DeviceAgent; |
| 30 | import org.onosproject.bmv2.api.runtime.Bmv2FlowRuleWrapper; |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 31 | import org.onosproject.bmv2.api.runtime.Bmv2MatchKey; |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 32 | import org.onosproject.bmv2.api.runtime.Bmv2ParsedTableEntry; |
Carmelo Cascone | aa8b629 | 2016-04-13 14:27:06 -0700 | [diff] [blame] | 33 | import org.onosproject.bmv2.api.runtime.Bmv2RuntimeException; |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 34 | import org.onosproject.bmv2.api.runtime.Bmv2TableEntry; |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 35 | import org.onosproject.bmv2.api.runtime.Bmv2TableEntryReference; |
| 36 | import org.onosproject.bmv2.api.service.Bmv2Controller; |
| 37 | import org.onosproject.bmv2.api.service.Bmv2DeviceContextService; |
| 38 | import org.onosproject.bmv2.api.service.Bmv2TableEntryService; |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 39 | import org.onosproject.net.DeviceId; |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 40 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 41 | import org.onosproject.net.flow.DefaultFlowEntry; |
| 42 | import org.onosproject.net.flow.FlowEntry; |
| 43 | import org.onosproject.net.flow.FlowRule; |
| 44 | import org.onosproject.net.flow.FlowRuleProgrammable; |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 45 | import org.slf4j.Logger; |
| 46 | import org.slf4j.LoggerFactory; |
| 47 | |
| 48 | import java.util.Collection; |
| 49 | import java.util.Collections; |
| 50 | import java.util.List; |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 51 | import java.util.concurrent.ConcurrentMap; |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 52 | import java.util.concurrent.locks.Lock; |
| 53 | import java.util.concurrent.locks.ReentrantLock; |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 54 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 55 | import static org.onosproject.bmv2.api.runtime.Bmv2RuntimeException.Code.*; |
Carmelo Cascone | f8cf288 | 2016-05-04 14:06:17 -0700 | [diff] [blame] | 56 | import static org.onosproject.net.flow.FlowEntry.FlowEntryState.ADDED; |
| 57 | |
Carmelo Cascone | e912164 | 2016-04-27 17:02:38 -0700 | [diff] [blame] | 58 | /** |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 59 | * Implementation of the flow rule programmable behaviour for BMv2. |
Carmelo Cascone | e912164 | 2016-04-27 17:02:38 -0700 | [diff] [blame] | 60 | */ |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 61 | public class Bmv2FlowRuleProgrammable extends AbstractHandlerBehaviour implements FlowRuleProgrammable { |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 62 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 63 | private final Logger log = LoggerFactory.getLogger(this.getClass()); |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 64 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 65 | // Needed to synchronize operations over the same table entry. |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 66 | private static final ConcurrentMap<Bmv2TableEntryReference, Lock> ENTRY_LOCKS = Maps.newConcurrentMap(); |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 67 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 68 | private Bmv2Controller controller; |
| 69 | private Bmv2TableEntryService tableEntryService; |
| 70 | private Bmv2DeviceContextService contextService; |
| 71 | |
| 72 | private boolean init() { |
Carmelo Cascone | fbc577b | 2016-06-17 23:19:09 -0700 | [diff] [blame] | 73 | try { |
| 74 | controller = handler().get(Bmv2Controller.class); |
| 75 | tableEntryService = handler().get(Bmv2TableEntryService.class); |
| 76 | contextService = handler().get(Bmv2DeviceContextService.class); |
| 77 | return true; |
| 78 | } catch (ServiceNotFoundException e) { |
| 79 | log.warn(e.getMessage()); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 80 | return false; |
| 81 | } |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 82 | } |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 83 | |
| 84 | @Override |
| 85 | public Collection<FlowEntry> getFlowEntries() { |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 86 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 87 | if (!init()) { |
Carmelo Cascone | a2f510e | 2016-05-03 18:36:45 -0700 | [diff] [blame] | 88 | return Collections.emptyList(); |
| 89 | } |
| 90 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 91 | DeviceId deviceId = handler().data().deviceId(); |
| 92 | |
| 93 | Bmv2DeviceAgent deviceAgent; |
| 94 | try { |
| 95 | deviceAgent = controller.getAgent(deviceId); |
| 96 | } catch (Bmv2RuntimeException e) { |
| 97 | log.error("Failed to get BMv2 device agent: {}", e.explain()); |
| 98 | return Collections.emptyList(); |
| 99 | } |
| 100 | |
| 101 | Bmv2DeviceContext context = contextService.getContext(deviceId); |
| 102 | if (context == null) { |
| 103 | log.warn("Unable to get device context for {}", deviceId); |
tellviveks | 3615326 | 2017-03-07 18:16:29 +0530 | [diff] [blame^] | 104 | return Collections.emptyList(); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | Bmv2Interpreter interpreter = context.interpreter(); |
| 108 | Bmv2Configuration configuration = context.configuration(); |
Carmelo Cascone | a2f510e | 2016-05-03 18:36:45 -0700 | [diff] [blame] | 109 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 110 | List<FlowEntry> entryList = Lists.newArrayList(); |
| 111 | |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 112 | for (Bmv2TableModel table : configuration.tables()) { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 113 | // For each table in the configuration AND exposed by the interpreter. |
| 114 | if (!interpreter.tableIdMap().inverse().containsKey(table.name())) { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 115 | continue; // next table |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 116 | } |
| 117 | |
Carmelo Cascone | 25f1888 | 2016-06-14 19:16:50 -0700 | [diff] [blame] | 118 | List<Bmv2ParsedTableEntry> installedEntries; |
| 119 | try { |
| 120 | installedEntries = deviceAgent.getTableEntries(table.name()); |
| 121 | } catch (Bmv2RuntimeException e) { |
| 122 | log.warn("Failed to get table entries of table {} of {}: {}", table.name(), deviceId, e.explain()); |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 123 | continue; // next table |
Carmelo Cascone | 25f1888 | 2016-06-14 19:16:50 -0700 | [diff] [blame] | 124 | } |
| 125 | |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 126 | for (Bmv2ParsedTableEntry parsedEntry : installedEntries) { |
| 127 | Bmv2TableEntryReference entryRef = new Bmv2TableEntryReference(deviceId, table.name(), |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 128 | parsedEntry.matchKey()); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 129 | |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 130 | Lock lock = ENTRY_LOCKS.computeIfAbsent(entryRef, key -> new ReentrantLock()); |
| 131 | lock.lock(); |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 132 | |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 133 | try { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 134 | Bmv2FlowRuleWrapper frWrapper = tableEntryService.lookup(entryRef); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 135 | |
| 136 | if (frWrapper == null) { |
Carmelo Cascone | fbc577b | 2016-06-17 23:19:09 -0700 | [diff] [blame] | 137 | log.debug("Missing reference from table entry service. Deleting it. BUG? " + |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 138 | "deviceId={}, tableName={}, matchKey={}", |
| 139 | deviceId, table.name(), entryRef.matchKey()); |
Carmelo Cascone | fbc577b | 2016-06-17 23:19:09 -0700 | [diff] [blame] | 140 | try { |
| 141 | doRemove(deviceAgent, table.name(), parsedEntry.entryId(), parsedEntry.matchKey()); |
| 142 | } catch (Bmv2RuntimeException e) { |
| 143 | log.warn("Unable to remove inconsistent flow rule: {}", e.explain()); |
| 144 | } |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 145 | continue; // next entry |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | long remoteEntryId = parsedEntry.entryId(); |
| 149 | long localEntryId = frWrapper.entryId(); |
| 150 | |
| 151 | if (remoteEntryId != localEntryId) { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 152 | log.debug("getFlowEntries(): inconsistent entry id! BUG? Updating it... remote={}, local={}", |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 153 | remoteEntryId, localEntryId); |
| 154 | frWrapper = new Bmv2FlowRuleWrapper(frWrapper.rule(), remoteEntryId, |
Carmelo Cascone | 728b1cd | 2016-06-24 15:21:38 -0700 | [diff] [blame] | 155 | frWrapper.installedOnMillis()); |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 156 | tableEntryService.bind(entryRef, frWrapper); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | long bytes = 0L; |
| 160 | long packets = 0L; |
| 161 | |
| 162 | if (table.hasCounters()) { |
| 163 | // Read counter values from device. |
| 164 | try { |
| 165 | Pair<Long, Long> counterValue = deviceAgent.readTableEntryCounter(table.name(), |
| 166 | remoteEntryId); |
| 167 | bytes = counterValue.getLeft(); |
| 168 | packets = counterValue.getRight(); |
| 169 | } catch (Bmv2RuntimeException e) { |
| 170 | log.warn("Unable to get counters for entry {}/{} of device {}: {}", |
| 171 | table.name(), remoteEntryId, deviceId, e.explain()); |
Carmelo Cascone | a2f510e | 2016-05-03 18:36:45 -0700 | [diff] [blame] | 172 | } |
| 173 | } |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 174 | |
| 175 | FlowEntry entry = new DefaultFlowEntry(frWrapper.rule(), ADDED, frWrapper.lifeInSeconds(), |
| 176 | packets, bytes); |
| 177 | entryList.add(entry); |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 178 | |
| 179 | } finally { |
| 180 | lock.unlock(); |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 181 | } |
| 182 | } |
| 183 | } |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 184 | |
| 185 | return Collections.unmodifiableCollection(entryList); |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | @Override |
| 189 | public Collection<FlowRule> applyFlowRules(Collection<FlowRule> rules) { |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 190 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 191 | return processFlowRules(rules, Operation.APPLY); |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | @Override |
| 195 | public Collection<FlowRule> removeFlowRules(Collection<FlowRule> rules) { |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 196 | |
| 197 | return processFlowRules(rules, Operation.REMOVE); |
| 198 | } |
| 199 | |
| 200 | private Collection<FlowRule> processFlowRules(Collection<FlowRule> rules, Operation operation) { |
| 201 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 202 | if (!init()) { |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 203 | return Collections.emptyList(); |
| 204 | } |
| 205 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 206 | DeviceId deviceId = handler().data().deviceId(); |
| 207 | |
| 208 | Bmv2DeviceAgent deviceAgent; |
| 209 | try { |
| 210 | deviceAgent = controller.getAgent(deviceId); |
| 211 | } catch (Bmv2RuntimeException e) { |
| 212 | log.error("Failed to get BMv2 device agent: {}", e.explain()); |
| 213 | return Collections.emptyList(); |
| 214 | } |
| 215 | |
| 216 | Bmv2DeviceContext context = contextService.getContext(deviceId); |
| 217 | if (context == null) { |
| 218 | log.error("Unable to get device context for {}", deviceId); |
| 219 | return Collections.emptyList(); |
| 220 | } |
| 221 | |
| 222 | Bmv2FlowRuleTranslator translator = tableEntryService.getFlowRuleTranslator(); |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 223 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 224 | List<FlowRule> processedFlowRules = Lists.newArrayList(); |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 225 | |
| 226 | for (FlowRule rule : rules) { |
| 227 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 228 | Bmv2TableEntry bmv2Entry; |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 229 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 230 | try { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 231 | bmv2Entry = translator.translate(rule, context); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 232 | } catch (Bmv2FlowRuleTranslatorException e) { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 233 | log.warn("Unable to translate flow rule: {} - {}", e.getMessage(), rule); |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 234 | continue; // next rule |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 235 | } |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 236 | |
| 237 | String tableName = bmv2Entry.tableName(); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 238 | Bmv2TableEntryReference entryRef = new Bmv2TableEntryReference(deviceId, tableName, bmv2Entry.matchKey()); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 239 | |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 240 | Lock lock = ENTRY_LOCKS.computeIfAbsent(entryRef, k -> new ReentrantLock()); |
| 241 | lock.lock(); |
| 242 | try { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 243 | // Get from store |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 244 | Bmv2FlowRuleWrapper frWrapper = tableEntryService.lookup(entryRef); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 245 | try { |
| 246 | if (operation == Operation.APPLY) { |
| 247 | // Apply entry |
| 248 | long entryId; |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 249 | if (frWrapper != null) { |
Carmelo Cascone | a2f510e | 2016-05-03 18:36:45 -0700 | [diff] [blame] | 250 | // Existing entry. |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 251 | entryId = frWrapper.entryId(); |
| 252 | // Tentatively delete entry before re-adding. |
| 253 | // It might not exist on device due to inconsistencies. |
| 254 | silentlyRemove(deviceAgent, entryRef.tableName(), entryId); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 255 | } |
Carmelo Cascone | a2f510e | 2016-05-03 18:36:45 -0700 | [diff] [blame] | 256 | // Add entry. |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 257 | entryId = doAddEntry(deviceAgent, bmv2Entry); |
Carmelo Cascone | 728b1cd | 2016-06-24 15:21:38 -0700 | [diff] [blame] | 258 | frWrapper = new Bmv2FlowRuleWrapper(rule, entryId, System.currentTimeMillis()); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 259 | } else { |
| 260 | // Remove entry |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 261 | if (frWrapper == null) { |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 262 | // Entry not found in map, how come? |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 263 | forceRemove(deviceAgent, entryRef.tableName(), entryRef.matchKey()); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 264 | } else { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 265 | long entryId = frWrapper.entryId(); |
| 266 | doRemove(deviceAgent, entryRef.tableName(), entryId, entryRef.matchKey()); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 267 | } |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 268 | frWrapper = null; |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 269 | } |
| 270 | // If here, no exceptions... things went well :) |
| 271 | processedFlowRules.add(rule); |
| 272 | } catch (Bmv2RuntimeException e) { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 273 | log.warn("Unable to {} flow rule: {}", operation.name(), e.explain()); |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 274 | } |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 275 | |
| 276 | // Update entryRef binding in table entry service. |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 277 | if (frWrapper != null) { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 278 | tableEntryService.bind(entryRef, frWrapper); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 279 | } else { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 280 | tableEntryService.unbind(entryRef); |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 281 | } |
Carmelo Cascone | 6256d01 | 2016-06-17 13:49:52 -0700 | [diff] [blame] | 282 | } finally { |
| 283 | lock.unlock(); |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 284 | } |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 285 | } |
| 286 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 287 | return processedFlowRules; |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 288 | } |
| 289 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 290 | private long doAddEntry(Bmv2DeviceAgent agent, Bmv2TableEntry entry) throws Bmv2RuntimeException { |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 291 | try { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 292 | return agent.addTableEntry(entry); |
| 293 | } catch (Bmv2RuntimeException e) { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 294 | if (e.getCode().equals(TABLE_DUPLICATE_ENTRY)) { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 295 | forceRemove(agent, entry.tableName(), entry.matchKey()); |
| 296 | return agent.addTableEntry(entry); |
| 297 | } else { |
| 298 | throw e; |
| 299 | } |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 300 | } |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 301 | } |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 302 | |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 303 | private void doRemove(Bmv2DeviceAgent agent, String tableName, long entryId, Bmv2MatchKey matchKey) |
| 304 | throws Bmv2RuntimeException { |
| 305 | try { |
| 306 | agent.deleteTableEntry(tableName, entryId); |
| 307 | } catch (Bmv2RuntimeException e) { |
Carmelo Cascone | ee4cd7e | 2016-06-16 18:28:43 -0700 | [diff] [blame] | 308 | if (e.getCode().equals(TABLE_INVALID_HANDLE) || e.getCode().equals(TABLE_EXPIRED_HANDLE)) { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 309 | // entry is not there with the declared ID, try with a forced remove. |
| 310 | forceRemove(agent, tableName, matchKey); |
| 311 | } else { |
| 312 | throw e; |
| 313 | } |
| 314 | } |
| 315 | } |
| 316 | |
| 317 | private void forceRemove(Bmv2DeviceAgent agent, String tableName, Bmv2MatchKey matchKey) |
| 318 | throws Bmv2RuntimeException { |
| 319 | // Find the entryID (expensive call!) |
Carmelo Cascone | 25f1888 | 2016-06-14 19:16:50 -0700 | [diff] [blame] | 320 | for (Bmv2ParsedTableEntry pEntry : agent.getTableEntries(tableName)) { |
Carmelo Cascone | 0831efb | 2016-05-31 14:50:19 -0700 | [diff] [blame] | 321 | if (pEntry.matchKey().equals(matchKey)) { |
| 322 | // Remove entry and drop exceptions. |
| 323 | silentlyRemove(agent, tableName, pEntry.entryId()); |
| 324 | break; |
| 325 | } |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | private void silentlyRemove(Bmv2DeviceAgent agent, String tableName, long entryId) { |
| 330 | try { |
| 331 | agent.deleteTableEntry(tableName, entryId); |
| 332 | } catch (Bmv2RuntimeException e) { |
| 333 | // do nothing |
| 334 | } |
Carmelo Cascone | d4e7a77 | 2016-05-03 11:21:29 -0700 | [diff] [blame] | 335 | } |
| 336 | |
Carmelo Cascone | 2954f13 | 2016-04-15 10:26:40 -0700 | [diff] [blame] | 337 | private enum Operation { |
| 338 | APPLY, REMOVE |
Carmelo Cascone | 2ea177b | 2016-02-25 18:38:42 -0800 | [diff] [blame] | 339 | } |
tellviveks | 3615326 | 2017-03-07 18:16:29 +0530 | [diff] [blame^] | 340 | } |