Examples with GroupBucket org.onosproject.net.group.GroupBucket used on opensource projects

Example 11 with GroupBucket

use of org.onosproject.net.group.GroupBucket in project onos by opennetworkinglab.

the class Ofdpa2GroupHandler method removeBucket.

/**
 * Removes top-level buckets from a group that represents the given next objective.
 *
 * @param chainsToRemove a list of group bucket chains to remove
 * @param nextObjective the next objective that contains information for the
 *                  buckets to be removed from the group
 */
protected void removeBucket(List<Deque<GroupKey>> chainsToRemove, NextObjective nextObjective) {
    List<GroupBucket> bucketsToRemove = Lists.newArrayList();
    // first group key is the one we want to modify
    GroupKey modGroupKey = chainsToRemove.get(0).peekFirst();
    Group modGroup = groupService.getGroup(deviceId, modGroupKey);
    if (modGroup == null) {
        log.warn("removeBucket(): Attempt to modify non-existent group {} for device {}", modGroupKey, deviceId);
        return;
    }
    for (Deque<GroupKey> foundChain : chainsToRemove) {
        // second group key is the one we wish to remove the reference to
        if (foundChain.size() < 2) {
            // additional check to make sure second group key exists in
            // the chain.
            log.warn("Can't find second group key from chain {}", foundChain);
            continue;
        }
        GroupKey pointedGroupKey = foundChain.stream().collect(Collectors.toList()).get(1);
        Group pointedGroup = groupService.getGroup(deviceId, pointedGroupKey);
        if (pointedGroup == null) {
            continue;
        }
        GroupBucket bucket;
        if (nextObjective.type() == NextObjective.Type.HASHED) {
            bucket = DefaultGroupBucket.createSelectGroupBucket(DefaultTrafficTreatment.builder().group(pointedGroup.id()).build());
        } else {
            bucket = DefaultGroupBucket.createAllGroupBucket(DefaultTrafficTreatment.builder().group(pointedGroup.id()).build());
        }
        bucketsToRemove.add(bucket);
    }
    GroupBuckets removeBuckets = new GroupBuckets(bucketsToRemove);
    // for debug log
    List<String> pointedGroupIds;
    pointedGroupIds = bucketsToRemove.stream().map(GroupBucket::treatment).map(TrafficTreatment::allInstructions).flatMap(List::stream).filter(inst -> inst instanceof Instructions.GroupInstruction).map(inst -> (Instructions.GroupInstruction) inst).map(Instructions.GroupInstruction::groupId).map(GroupId::id).map(Integer::toHexString).map(id -> HEX_PREFIX + id).collect(Collectors.toList());
    log.debug("Removing buckets from group id 0x{} pointing to group id(s) {} " + "for next id {} in device {}", Integer.toHexString(modGroup.id().id()), pointedGroupIds, nextObjective.id(), deviceId);
    addPendingUpdateNextObjective(modGroupKey, nextObjective);
    groupService.removeBucketsFromGroup(deviceId, modGroupKey, removeBuckets, modGroupKey, nextObjective.appId());
    // potentially stale copy of allActiveKeys
    synchronized (flowObjectiveStore) {
        // get a fresh copy of what the store holds
        NextGroup next = flowObjectiveStore.getNextGroup(nextObjective.id());
        List<Deque<GroupKey>> allActiveKeys = appKryo.deserialize(next.data());
        allActiveKeys = Lists.newArrayList(allActiveKeys);
        // Note that since we got a new object, and ArrayDeque does not implement
        // Object.equals(), we have to check the deque elems one by one
        allActiveKeys.removeIf(active -> chainsToRemove.stream().anyMatch(remove -> Arrays.equals(remove.toArray(new GroupKey[0]), active.toArray(new GroupKey[0]))));
        // top level group which still exists.
        if (allActiveKeys.isEmpty()) {
            ArrayDeque<GroupKey> top = new ArrayDeque<>();
            top.add(modGroupKey);
            allActiveKeys.add(top);
        }
        flowObjectiveStore.putNextGroup(nextObjective.id(), new OfdpaNextGroup(allActiveKeys, nextObjective));
    }
}

Example 12 with GroupBucket

use of org.onosproject.net.group.GroupBucket in project onos by opennetworkinglab.

the class Ofdpa2GroupHandler method addBucketToEcmpHashGroup.

private void addBucketToEcmpHashGroup(NextObjective nextObjective, List<Deque<GroupKey>> allActiveKeys) {
    // storage for all group keys in the chain of groups created
    List<Deque<GroupKey>> allGroupKeys = new ArrayList<>();
    List<GroupInfo> unsentGroups = new ArrayList<>();
    List<GroupBucket> newBuckets;
    createEcmpHashBucketChains(nextObjective, allGroupKeys, unsentGroups);
    // now we can create the buckets to add to the outermost L3 ECMP group
    newBuckets = generateNextGroupBuckets(unsentGroups, SELECT);
    // retrieve the original L3 ECMP group
    Group l3ecmpGroup = retrieveTopLevelGroup(allActiveKeys, deviceId, groupService, nextObjective.id());
    if (l3ecmpGroup == null) {
        fail(nextObjective, ObjectiveError.GROUPMISSING);
        return;
    }
    GroupKey l3ecmpGroupKey = l3ecmpGroup.appCookie();
    int l3ecmpGroupId = l3ecmpGroup.id().id();
    // Although GroupDescriptions are not necessary for adding buckets to
    // existing groups, we still use one in the GroupChainElem. When the latter is
    // processed, the info will be extracted for the bucketAdd call to groupService
    GroupDescription l3ecmpGroupDesc = new DefaultGroupDescription(deviceId, SELECT, new GroupBuckets(newBuckets), l3ecmpGroupKey, l3ecmpGroupId, nextObjective.appId());
    GroupChainElem l3ecmpGce = new GroupChainElem(l3ecmpGroupDesc, unsentGroups.size(), true, deviceId);
    // update new bucket-chains
    List<Deque<GroupKey>> addedKeys = new ArrayList<>();
    for (Deque<GroupKey> newBucketChain : allGroupKeys) {
        newBucketChain.addFirst(l3ecmpGroupKey);
        addedKeys.add(newBucketChain);
    }
    updatePendingNextObjective(l3ecmpGroupKey, new OfdpaNextGroup(addedKeys, nextObjective));
    log.debug("Adding to L3ECMP: device:{} gid:{} group key:{} nextId:{}", deviceId, Integer.toHexString(l3ecmpGroupId), l3ecmpGroupKey, nextObjective.id());
    unsentGroups.forEach(groupInfo -> {
        // send the innermost group
        log.debug("Sending innermost group {} in group chain on device {} ", Integer.toHexString(groupInfo.innerMostGroupDesc().givenGroupId()), deviceId);
        updatePendingGroups(groupInfo.nextGroupDesc().appCookie(), l3ecmpGce);
        groupService.addGroup(groupInfo.innerMostGroupDesc());
    });
}

Example 13 with GroupBucket

use of org.onosproject.net.group.GroupBucket in project onos by opennetworkinglab.

the class Ofdpa2GroupHandler method processEcmpHashedNextObjective.

/**
 * As per the OFDPA 2.0 TTP, packets are sent out of ports by using
 * a chain of groups. The hashed Next Objective passed in by the application
 * has to be broken up into a group chain comprising of an
 * L3 ECMP group as the top level group. Buckets of this group can point
 * to a variety of groups in a group chain, depending on the whether
 * MPLS labels are being pushed or not.
 * <p>
 * NOTE: We do not create MPLS ECMP groups as they are unimplemented in
 *       OF-DPA 2.0 (even though it is in the spec). Therefore we do not
 *       check the nextObjective meta to see what is matching before being
 *       sent to this nextObjective.
 *
 * @param nextObj  the nextObjective of type HASHED
 */
protected void processEcmpHashedNextObjective(NextObjective nextObj) {
    // storage for all group keys in the chain of groups created
    List<Deque<GroupKey>> allGroupKeys = new ArrayList<>();
    List<GroupInfo> unsentGroups = new ArrayList<>();
    createEcmpHashBucketChains(nextObj, allGroupKeys, unsentGroups);
    // now we can create the outermost L3 ECMP group
    List<GroupBucket> l3ecmpGroupBuckets = new ArrayList<>();
    for (GroupInfo gi : unsentGroups) {
        // create ECMP bucket to point to the outer group
        TrafficTreatment.Builder ttb = DefaultTrafficTreatment.builder();
        ttb.group(new GroupId(gi.nextGroupDesc().givenGroupId()));
        GroupBucket sbucket = DefaultGroupBucket.createSelectGroupBucket(ttb.build());
        l3ecmpGroupBuckets.add(sbucket);
    }
    int l3ecmpIndex = getNextAvailableIndex();
    int l3ecmpGroupId = L3_ECMP_TYPE | (TYPE_MASK & l3ecmpIndex);
    GroupKey l3ecmpGroupKey = new DefaultGroupKey(appKryo.serialize(l3ecmpIndex));
    GroupDescription l3ecmpGroupDesc = new DefaultGroupDescription(deviceId, SELECT, new GroupBuckets(l3ecmpGroupBuckets), l3ecmpGroupKey, l3ecmpGroupId, nextObj.appId());
    GroupChainElem l3ecmpGce = new GroupChainElem(l3ecmpGroupDesc, l3ecmpGroupBuckets.size(), false, deviceId);
    // create objects for local and distributed storage
    allGroupKeys.forEach(gKeyChain -> gKeyChain.addFirst(l3ecmpGroupKey));
    OfdpaNextGroup ofdpaGrp = new OfdpaNextGroup(allGroupKeys, nextObj);
    // store l3ecmpGroupKey with the ofdpaGroupChain for the nextObjective
    // that depends on it
    updatePendingNextObjective(l3ecmpGroupKey, ofdpaGrp);
    log.debug("Trying L3ECMP: device:{} gid:{} gkey:{} nextId:{}", deviceId, Integer.toHexString(l3ecmpGroupId), l3ecmpGroupKey, nextObj.id());
    // finally we are ready to send the innermost groups
    for (GroupInfo gi : unsentGroups) {
        log.debug("Sending innermost group {} in group chain on device {} ", Integer.toHexString(gi.innerMostGroupDesc().givenGroupId()), deviceId);
        updatePendingGroups(gi.nextGroupDesc().appCookie(), l3ecmpGce);
        groupService.addGroup(gi.innerMostGroupDesc());
    }
}

Example 14 with GroupBucket

use of org.onosproject.net.group.GroupBucket in project onos by opennetworkinglab.

the class Ofdpa3GroupHandler method createMplsL2VpnGroup.

/**
 * Helper method to create a mpls l2 vpn group.
 *
 * @param nextGroupId the next group in the chain
 * @param index the index of the group
 * @param instructions the instructions to push
 * @param applicationId the application id
 * @return the group description
 */
private GroupDescription createMplsL2VpnGroup(int nextGroupId, int index, List<Instruction> instructions, ApplicationId applicationId) {
    TrafficTreatment.Builder treatment = DefaultTrafficTreatment.builder();
    // We add the extensions and the instructions.
    treatment.extension(new Ofdpa3PushL2Header(), deviceId);
    treatment.pushVlan();
    instructions.forEach(treatment::add);
    treatment.extension(new Ofdpa3PushCw(), deviceId);
    // We point the group to the next group.
    treatment.group(new GroupId(nextGroupId));
    GroupBucket groupBucket = DefaultGroupBucket.createIndirectGroupBucket(treatment.build());
    // Finally we build the group description.
    int groupId = makeMplsLabelGroupId(OfdpaMplsGroupSubType.L2_VPN, index);
    GroupKey groupKey = new DefaultGroupKey(Ofdpa2Pipeline.appKryo.serialize(index));
    return new DefaultGroupDescription(deviceId, INDIRECT, new GroupBuckets(Collections.singletonList(groupBucket)), groupKey, groupId, applicationId);
}

Example 15 with GroupBucket

use of org.onosproject.net.group.GroupBucket in project onos by opennetworkinglab.

the class OfdpaGroupHandlerUtility method createL3MulticastBucket.

static List<GroupBucket> createL3MulticastBucket(List<GroupInfo> groupInfos) {
    List<GroupBucket> l3McastBuckets = new ArrayList<>();
    // For each inner group
    groupInfos.forEach(groupInfo -> {
        // Points to L3 interface group if there is one.
        // Otherwise points to L2 interface group directly.
        GroupDescription nextGroupDesc = (groupInfo.nextGroupDesc() != null) ? groupInfo.nextGroupDesc() : groupInfo.innerMostGroupDesc();
        TrafficTreatment.Builder ttb = DefaultTrafficTreatment.builder();
        ttb.group(new GroupId(nextGroupDesc.givenGroupId()));
        GroupBucket abucket = DefaultGroupBucket.createAllGroupBucket(ttb.build());
        l3McastBuckets.add(abucket);
    });
    // Done return the new list of buckets
    return l3McastBuckets;
}