Examples with NextObjective org.onosproject.net.flowobjective.NextObjective used on opensource projects

Example 41 with NextObjective

use of org.onosproject.net.flowobjective.NextObjective in project onos by opennetworkinglab.

the class NextObjectiveTranslator method nextVlan.

private void nextVlan(NextObjective obj, ObjectiveTranslation.Builder resultBuilder) throws FabricPipelinerException {
    // We expect NextObjective treatments to contain one or two VLAN instructions.
    // If two, this treatment should be mapped to an action for double-vlan push.
    // In fabric.p4, mapping next IDs to VLAN IDs is done by a direct table (next_vlan),
    // for this reason, we also make sure that all treatments in the NextObjective
    // have exactly the same VLAN instructions, as they will be mapped to a single action
    // Try to extract VLAN instructions in the treatment,
    // later we check if we support multiple VLAN termination.
    final List<List<ModVlanIdInstruction>> vlanInstructions = defaultNextTreatments(obj.nextTreatments(), false).stream().map(defaultNextTreatment -> l2Instructions(defaultNextTreatment.treatment(), VLAN_ID).stream().map(v -> (ModVlanIdInstruction) v).collect(Collectors.toList())).filter(l -> !l.isEmpty()).collect(Collectors.toList());
    final VlanIdCriterion vlanIdCriterion = obj.meta() == null ? null : (VlanIdCriterion) criterion(obj.meta().criteria(), Criterion.Type.VLAN_VID);
    final List<VlanId> vlanIdList;
    if (vlanInstructions.isEmpty() && vlanIdCriterion == null) {
        // No VLAN_ID to apply.
        return;
    }
    if (!vlanInstructions.isEmpty()) {
        // Give priority to what found in the instructions.
        // Expect the same VLAN ID (or two VLAN IDs in the same order) for all instructions.
        final Set<List<VlanId>> vlanIds = vlanInstructions.stream().map(l -> l.stream().map(ModVlanIdInstruction::vlanId).collect(Collectors.toList())).collect(Collectors.toSet());
        if (obj.nextTreatments().size() != vlanInstructions.size() || vlanIds.size() != 1) {
            throw new FabricPipelinerException("Inconsistent VLAN_ID instructions, cannot process " + "next_vlan rule. It is required that all " + "treatments have the same VLAN_ID instructions.");
        }
        vlanIdList = vlanIds.iterator().next();
    } else {
        // Use the value in meta.
        // FIXME: there should be no need to generate a next_vlan rule for
        // the value found in meta. Meta describes the fields that were
        // expected to be matched in previous pipeline stages, i.e.
        // existing packet fields. But, for some reason, if we remove this
        // rule, traffic is not forwarded at spines. We might need to look
        // at the way default VLANs are handled in fabric.p4.
        vlanIdList = List.of(vlanIdCriterion.vlanId());
    }
    final TrafficSelector selector = nextIdSelector(obj.id());
    final TrafficTreatment.Builder treatmentBuilder = DefaultTrafficTreatment.builder();
    vlanIdList.stream().forEach(vlanId -> treatmentBuilder.setVlanId(vlanId));
    final TrafficTreatment treatment = treatmentBuilder.build();
    resultBuilder.addFlowRule(flowRule(obj, FabricConstants.FABRIC_INGRESS_PRE_NEXT_NEXT_VLAN, selector, treatment));
}

Example 42 with NextObjective

use of org.onosproject.net.flowobjective.NextObjective in project onos by opennetworkinglab.

the class NextObjectiveTranslator method nextMpls.

private void nextMpls(NextObjective obj, ObjectiveTranslation.Builder resultBuilder) throws FabricPipelinerException {
    // Next objective can contain only one mpls push and one mpls label
    // instruction. Pipeliner does not support other configurations.
    final List<List<ModMplsLabelInstruction>> mplsInstructions = defaultNextTreatments(obj.nextTreatments(), false).stream().map(defaultNextTreatment -> l2Instructions(defaultNextTreatment.treatment(), MPLS_LABEL).stream().map(v -> (ModMplsLabelInstruction) v).collect(Collectors.toList())).filter(l -> !l.isEmpty()).collect(Collectors.toList());
    if (mplsInstructions.isEmpty()) {
        // No need to apply next mpls table
        return;
    }
    // We expect one mpls label for each treatment and the label has to be the same
    final Set<MplsLabel> mplsLabels = mplsInstructions.stream().flatMap(Collection::stream).map(ModMplsLabelInstruction::label).collect(Collectors.toSet());
    if (obj.nextTreatments().size() != mplsInstructions.size() || mplsLabels.size() != 1) {
        throw new FabricPipelinerException("Inconsistent MPLS_LABEL instructions, cannot process " + "next_mpls rule. It is required that all " + "treatments have the same MPLS_LABEL instructions.");
    }
    final TrafficSelector selector = nextIdSelector(obj.id());
    final TrafficTreatment treatment = DefaultTrafficTreatment.builder().setMpls(mplsLabels.iterator().next()).build();
    resultBuilder.addFlowRule(flowRule(obj, FabricConstants.FABRIC_INGRESS_PRE_NEXT_NEXT_MPLS, selector, treatment));
}

Example 43 with NextObjective

use of org.onosproject.net.flowobjective.NextObjective in project onos by opennetworkinglab.

the class FabricPipeliner method handleVerify.

private ObjectiveError handleVerify(NextObjective nextObjective) {
    Map<GroupBucket, FlowRule> bucketsToFlows = getBucketToFlowMapping(nextObjective);
    if (bucketsToFlows.isEmpty() && !nextObjective.nextTreatments().isEmpty()) {
        log.warn("VERIFY failed due to translation error, bucketsToFlows is empty");
        return ObjectiveError.BADPARAMS;
    }
    if (log.isTraceEnabled()) {
        log.trace("Mapping bucketsToFlows {} has been generated ", bucketsToFlows);
    }
    GroupKey groupKey = nextTranslator.getGroupKey(nextObjective);
    if (groupKey == null) {
        log.warn("VERIFY failed due to translation error, unable to determine group key");
        return ObjectiveError.BADPARAMS;
    }
    Group groupFromStore = groupService.getGroup(deviceId, groupKey);
    if (groupFromStore == null) {
        log.warn("VERIFY failed due to missing group in the store");
        return ObjectiveError.GROUPMISSING;
    }
    // Looking for duplicate buckets - remove them by using a set and comparing size after/before
    Set<GroupBucket> bucketsFromStore = Sets.newHashSet(groupFromStore.buckets().buckets());
    if (groupFromStore.buckets().buckets().size() > bucketsFromStore.size()) {
        log.warn("Duplicated buckets detected in device:{}, nextId:{}, before-size" + ":{} after-size:{} .. correcting", deviceId, nextObjective.id(), groupFromStore.buckets().buckets().size(), bucketsFromStore.size());
        final GroupBuckets bucketToSet = new GroupBuckets(Lists.newArrayList(bucketsFromStore));
        groupService.setBucketsForGroup(deviceId, groupKey, bucketToSet, groupKey, nextObjective.appId());
        // Forge temporary the group to avoid race condition with the store
        groupFromStore = new DefaultGroup(groupFromStore.id(), deviceId, groupFromStore.type(), bucketToSet);
    }
    // Looking for buckets missing in the group but defined in the next
    Map<GroupBucket, FlowRule> toAdd = Maps.newHashMap();
    for (Map.Entry<GroupBucket, FlowRule> entry : bucketsToFlows.entrySet()) {
        if (!groupFromStore.buckets().buckets().contains(entry.getKey())) {
            toAdd.put(entry.getKey(), entry.getValue());
        }
    }
    // Looking for buckets missing in the next but defined in the group
    // FIXME SDFAB-250 we cannot remove associated egress flows
    List<GroupBucket> toRemove = Lists.newArrayList();
    groupFromStore.buckets().buckets().forEach(bucket -> {
        if (!bucketsToFlows.containsKey(bucket)) {
            toRemove.add(bucket);
        }
    });
    if (!toAdd.isEmpty() || !toRemove.isEmpty()) {
        log.warn("Mismatch detected in device:{}, nextId:{}, groupFromTranslation-size:{} " + "groupFromStore-size:{} toAdd-size:{} toRemove-size: {} .. correcting", deviceId, nextObjective.id(), bucketsToFlows.size(), groupFromStore.buckets().buckets().size(), toAdd.size(), toRemove.size());
    }
    if (!toAdd.isEmpty()) {
        if (log.isTraceEnabled()) {
            log.trace("Adding missing buckets {} and flows {}", toAdd.keySet(), toAdd.values());
        }
        final FlowRuleOperations.Builder ops = FlowRuleOperations.builder();
        final FlowRule dummyFlow = getDummyFlow(nextObjective);
        toAdd.values().stream().filter(flowRule -> !flowRule.equals(dummyFlow)).forEach(ops::add);
        final GroupBuckets bucketsToAdd = new GroupBuckets(Lists.newArrayList(toAdd.keySet()));
        groupService.addBucketsToGroup(deviceId, groupKey, bucketsToAdd, groupKey, nextObjective.appId());
        flowRuleService.apply(ops.build());
    }
    if (!toRemove.isEmpty()) {
        if (log.isTraceEnabled()) {
            log.trace("Removing stale buckets {}", toRemove);
        }
        final GroupBuckets bucketsToRemove = new GroupBuckets(toRemove);
        groupService.removeBucketsFromGroup(deviceId, groupKey, bucketsToRemove, groupKey, nextObjective.appId());
    }
    return null;
}

Example 44 with NextObjective

use of org.onosproject.net.flowobjective.NextObjective in project onos by opennetworkinglab.

the class NextObjectiveTranslatorTest method testBroadcastOutput.

/**
 * Test program output group for Broadcast table.
 */
@Test
public void testBroadcastOutput() throws FabricPipelinerException {
    TrafficTreatment treatment1 = DefaultTrafficTreatment.builder().setOutput(PORT_1).build();
    TrafficTreatment treatment2 = DefaultTrafficTreatment.builder().popVlan().setOutput(PORT_2).build();
    NextObjective nextObjective = DefaultNextObjective.builder().withId(NEXT_ID_1).withPriority(PRIORITY).addTreatment(treatment1).addTreatment(treatment2).withMeta(VLAN_META).withType(NextObjective.Type.BROADCAST).makePermanent().fromApp(APP_ID).add();
    ObjectiveTranslation actualTranslation = translatorHashed.doTranslate(nextObjective);
    // Should generate 3 flows:
    // - Multicast table flow that matches on next-id and set multicast group (1)
    // - Egress VLAN pop handling for treatment2 (0)
    // - Next VLAN flow (2)
    // And 2 groups:
    // - Multicast group
    // Expected multicast table flow rule.
    PiCriterion nextIdCriterion = PiCriterion.builder().matchExact(FabricConstants.HDR_NEXT_ID, NEXT_ID_1).build();
    TrafficSelector nextIdSelector = DefaultTrafficSelector.builder().matchPi(nextIdCriterion).build();
    PiAction setMcGroupAction = PiAction.builder().withId(FabricConstants.FABRIC_INGRESS_NEXT_SET_MCAST_GROUP_ID).withParameter(new PiActionParam(FabricConstants.GROUP_ID, NEXT_ID_1)).build();
    TrafficTreatment treatment = DefaultTrafficTreatment.builder().piTableAction(setMcGroupAction).build();
    FlowRule expectedHashedFlowRule = DefaultFlowRule.builder().forDevice(DEVICE_ID).fromApp(APP_ID).makePermanent().withPriority(nextObjective.priority()).forTable(FabricConstants.FABRIC_INGRESS_NEXT_MULTICAST).withSelector(nextIdSelector).withTreatment(treatment).build();
    // Expected egress VLAN_PUSH flow rule.
    PiCriterion egressVlanTableMatch = PiCriterion.builder().matchExact(FabricConstants.HDR_EG_PORT, PORT_1.toLong()).build();
    TrafficSelector selectorForEgressVlan = DefaultTrafficSelector.builder().matchPi(egressVlanTableMatch).matchVlanId(VLAN_100).build();
    PiAction piActionForEgressVlan = PiAction.builder().withId(FabricConstants.FABRIC_EGRESS_EGRESS_NEXT_PUSH_VLAN).build();
    TrafficTreatment treatmentForEgressVlan = DefaultTrafficTreatment.builder().piTableAction(piActionForEgressVlan).build();
    FlowRule expectedEgressVlanPushRule = DefaultFlowRule.builder().withSelector(selectorForEgressVlan).withTreatment(treatmentForEgressVlan).forTable(FabricConstants.FABRIC_EGRESS_EGRESS_NEXT_EGRESS_VLAN).makePermanent().withPriority(nextObjective.priority()).forDevice(DEVICE_ID).fromApp(APP_ID).build();
    // Expected egress VLAN POP flow rule.
    egressVlanTableMatch = PiCriterion.builder().matchExact(FabricConstants.HDR_EG_PORT, PORT_2.toLong()).build();
    selectorForEgressVlan = DefaultTrafficSelector.builder().matchPi(egressVlanTableMatch).matchVlanId(VLAN_100).build();
    piActionForEgressVlan = PiAction.builder().withId(FabricConstants.FABRIC_EGRESS_EGRESS_NEXT_POP_VLAN).build();
    treatmentForEgressVlan = DefaultTrafficTreatment.builder().piTableAction(piActionForEgressVlan).build();
    FlowRule expectedEgressVlanPopRule = DefaultFlowRule.builder().withSelector(selectorForEgressVlan).withTreatment(treatmentForEgressVlan).forTable(FabricConstants.FABRIC_EGRESS_EGRESS_NEXT_EGRESS_VLAN).makePermanent().withPriority(nextObjective.priority()).forDevice(DEVICE_ID).fromApp(APP_ID).build();
    // Expected ALL group.
    TrafficTreatment allGroupTreatment1 = DefaultTrafficTreatment.builder().setOutput(PORT_1).build();
    TrafficTreatment allGroupTreatment2 = DefaultTrafficTreatment.builder().setOutput(PORT_2).build();
    List<TrafficTreatment> allTreatments = ImmutableList.of(allGroupTreatment1, allGroupTreatment2);
    List<GroupBucket> allBuckets = allTreatments.stream().map(DefaultGroupBucket::createAllGroupBucket).collect(Collectors.toList());
    GroupBuckets allGroupBuckets = new GroupBuckets(allBuckets);
    GroupKey allGroupKey = new DefaultGroupKey(FabricPipeliner.KRYO.serialize(NEXT_ID_1));
    GroupDescription expectedAllGroup = new DefaultGroupDescription(DEVICE_ID, GroupDescription.Type.ALL, allGroupBuckets, allGroupKey, NEXT_ID_1, APP_ID);
    ObjectiveTranslation expectedTranslation = ObjectiveTranslation.builder().addFlowRule(expectedHashedFlowRule).addFlowRule(vlanMetaFlowRule).addFlowRule(expectedEgressVlanPushRule).addFlowRule(expectedEgressVlanPopRule).addGroup(expectedAllGroup).build();
    assertEquals(expectedTranslation, actualTranslation);
}

Example 45 with NextObjective

use of org.onosproject.net.flowobjective.NextObjective in project onos by opennetworkinglab.

the class NextObjectiveTranslatorTest method testHashedOutput.

/**
 * Test program ecmp output group for Hashed table.
 */
@Test
public void testHashedOutput() throws Exception {
    PiAction piAction1 = PiAction.builder().withId(FabricConstants.FABRIC_INGRESS_NEXT_ROUTING_HASHED).withParameter(new PiActionParam(FabricConstants.SMAC, ROUTER_MAC.toBytes())).withParameter(new PiActionParam(FabricConstants.DMAC, HOST_MAC.toBytes())).withParameter(new PiActionParam(FabricConstants.PORT_NUM, PORT_1.toLong())).build();
    PiAction piAction2 = PiAction.builder().withId(FabricConstants.FABRIC_INGRESS_NEXT_ROUTING_HASHED).withParameter(new PiActionParam(FabricConstants.SMAC, ROUTER_MAC.toBytes())).withParameter(new PiActionParam(FabricConstants.DMAC, HOST_MAC.toBytes())).withParameter(new PiActionParam(FabricConstants.PORT_NUM, PORT_1.toLong())).build();
    TrafficTreatment treatment1 = DefaultTrafficTreatment.builder().piTableAction(piAction1).build();
    TrafficTreatment treatment2 = DefaultTrafficTreatment.builder().piTableAction(piAction2).build();
    NextObjective nextObjective = DefaultNextObjective.builder().withId(NEXT_ID_1).withPriority(PRIORITY).withMeta(VLAN_META).addTreatment(treatment1).addTreatment(treatment2).withType(NextObjective.Type.HASHED).makePermanent().fromApp(APP_ID).add();
    ObjectiveTranslation actualTranslation = translatorHashed.doTranslate(nextObjective);
    // Expected hashed table flow rule.
    PiCriterion nextIdCriterion = PiCriterion.builder().matchExact(FabricConstants.HDR_NEXT_ID, NEXT_ID_1).build();
    TrafficSelector nextIdSelector = DefaultTrafficSelector.builder().matchPi(nextIdCriterion).build();
    PiActionProfileGroupId actionGroupId = PiActionProfileGroupId.of(NEXT_ID_1);
    TrafficTreatment treatment = DefaultTrafficTreatment.builder().piTableAction(actionGroupId).build();
    FlowRule expectedFlowRule = DefaultFlowRule.builder().forDevice(DEVICE_ID).fromApp(APP_ID).makePermanent().withPriority(0).forTable(FabricConstants.FABRIC_INGRESS_NEXT_HASHED).withSelector(nextIdSelector).withTreatment(treatment).build();
    // Expected group
    List<TrafficTreatment> treatments = ImmutableList.of(treatment1, treatment2);
    List<GroupBucket> buckets = treatments.stream().map(DefaultGroupBucket::createSelectGroupBucket).collect(Collectors.toList());
    GroupBuckets groupBuckets = new GroupBuckets(buckets);
    PiGroupKey groupKey = new PiGroupKey(FabricConstants.FABRIC_INGRESS_NEXT_HASHED, FabricConstants.FABRIC_INGRESS_NEXT_HASHED_SELECTOR, NEXT_ID_1);
    GroupDescription expectedGroup = new DefaultGroupDescription(DEVICE_ID, GroupDescription.Type.SELECT, groupBuckets, groupKey, NEXT_ID_1, APP_ID);
    ObjectiveTranslation expectedTranslation = ObjectiveTranslation.builder().addFlowRule(expectedFlowRule).addFlowRule(vlanMetaFlowRule).addGroup(expectedGroup).build();
    assertEquals(expectedTranslation, actualTranslation);
}