org.onosproject.driver.pipeline.ofdpa

Class OfdpaGroupHandlerUtility

java.lang.Object

org.onosproject.driver.pipeline.ofdpa.OfdpaGroupHandlerUtility

public final class OfdpaGroupHandlerUtility
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OfdpaGroupHandlerUtility.GroupChainElem Represents a group element that is part of a chain of groups.
static class	OfdpaGroupHandlerUtility.GroupChecker
static class	OfdpaGroupHandlerUtility.GroupInfo Utility class for moving group information around.
static class	OfdpaGroupHandlerUtility.OfdpaMplsGroupSubType Helper enum to handle the different MPLS group types.
static class	OfdpaGroupHandlerUtility.OfdpaNextGroup Represents an entire group-chain that implements a Next-Objective from the application.

Method Summary

Modifier and Type	Method and Description
static boolean	createUnfiltered(org.onosproject.net.flow.TrafficTreatment treatment, org.onosproject.net.flow.TrafficSelector meta) Helper method to decide whether L2 Interface group or L2 Unfiltered group needs to be created.
static int	doubleVlanL3UnicastGroupId(org.onlab.packet.VlanId vlanId, long portNum)
static int	doubleVlanL3UnicastGroupKey(org.onosproject.net.DeviceId deviceId, org.onlab.packet.VlanId vlanId, long portNumber) Returns a hash as the L3 Unicast Group Key.
static List<Integer>	existingPortAndLabel(List<Deque<org.onosproject.net.group.GroupKey>> allActiveKeys, org.onosproject.net.group.GroupService groupService, org.onosproject.net.DeviceId deviceId, org.onosproject.net.PortNumber portToMatch, int labelToMatch) Returns a list of all indices in the allActiveKeys list (that represents a group) if the list element (a bucket or group-chain) has treatments that match the given outport and label.
static org.onlab.packet.VlanId	extractVlanIdFromGroupId(int groupId) Extracts VlanId from given group ID.
static Set<org.onosproject.net.PortNumber>	getExistingOutputPorts(List<Deque<org.onosproject.net.group.GroupKey>> allActiveKeys, org.onosproject.net.group.GroupService groupService, org.onosproject.net.DeviceId deviceId) Returns the set of existing output ports in the group represented by allActiveKeys.
static List<Integer>	indicesToRemoveFromNextGroup(List<Deque<org.onosproject.net.group.GroupKey>> allActiveKeys, org.onosproject.net.flowobjective.NextObjective nextObjective, org.onosproject.net.group.GroupService groupService, org.onosproject.net.DeviceId deviceId) Get indices to remove comparing next group with next objective.
static org.onosproject.net.group.GroupKey	l2FloodGroupKey(org.onlab.packet.VlanId vlanId, org.onosproject.net.DeviceId deviceId)
static int	l2GroupId(org.onlab.packet.VlanId vlanId, long portNum)
static int	l2HashGroupKey(org.onosproject.net.DeviceId deviceId, long portNumber) Returns a hash as the L2 Hash Group Key.
static int	l2InterfaceGroupKey(org.onosproject.net.DeviceId deviceId, org.onlab.packet.VlanId vlanId, long portNumber) Returns a hash as the L2 Interface Group Key.
static org.onosproject.net.group.GroupKey	l2MulticastGroupKey(org.onlab.packet.VlanId vlanId, org.onosproject.net.DeviceId deviceId)
static int	l2UnfilteredGroupId(long portNum)
static int	l2UnfilteredGroupKey(org.onosproject.net.DeviceId deviceId, long portNumber) Returns a hash as the L2 Unfiltered Interface Group Key.
static Integer	makeMplsForwardingGroupId(OfdpaGroupHandlerUtility.OfdpaMplsGroupSubType subType, int index) Creates MPLS Forwarding group id given a sub type and the index.
static Integer	makeMplsLabelGroupId(OfdpaGroupHandlerUtility.OfdpaMplsGroupSubType subType, int index) Creates MPLS Label group id given a sub type and the index.
static boolean	verifyHashedNextObjective(org.onosproject.net.flowobjective.NextObjective nextObjective) The purpose of this function is to verify if the hashed next objective is supported by the current pipeline.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

makeMplsLabelGroupId

public static Integer makeMplsLabelGroupId(OfdpaGroupHandlerUtility.OfdpaMplsGroupSubType subType,
                                           int index)

Creates MPLS Label group id given a sub type and the index.

Parameters:

subType - the MPLS Label group sub type

index - the index of the group

Returns:

the OFDPA group id

makeMplsForwardingGroupId

public static Integer makeMplsForwardingGroupId(OfdpaGroupHandlerUtility.OfdpaMplsGroupSubType subType,
                                                int index)

Creates MPLS Forwarding group id given a sub type and the index.

Parameters:

subType - the MPLS forwarding group sub type

index - the index of the group

Returns:

the OFDPA group id

getExistingOutputPorts

public static Set<org.onosproject.net.PortNumber> getExistingOutputPorts(List<Deque<org.onosproject.net.group.GroupKey>> allActiveKeys,
                                                                         org.onosproject.net.group.GroupService groupService,
                                                                         org.onosproject.net.DeviceId deviceId)

Returns the set of existing output ports in the group represented by allActiveKeys.

Parameters:

allActiveKeys - list of group key chain

groupService - the group service to get group information

deviceId - the device id to get group

Returns:

a set of output port from the list of group key chain

existingPortAndLabel

public static List<Integer> existingPortAndLabel(List<Deque<org.onosproject.net.group.GroupKey>> allActiveKeys,
                                                 org.onosproject.net.group.GroupService groupService,
                                                 org.onosproject.net.DeviceId deviceId,
                                                 org.onosproject.net.PortNumber portToMatch,
                                                 int labelToMatch)

Returns a list of all indices in the allActiveKeys list (that represents a group) if the list element (a bucket or group-chain) has treatments that match the given outport and label.

Parameters:

allActiveKeys - the representation of the group

groupService - groups service for querying group information

deviceId - the device id for the device that contains the group

portToMatch - the port to match in the group buckets

labelToMatch - the MPLS label-id to match in the group buckets

Returns:

a list of indexes in the allActiveKeys list where the list element has treatments that match the given portToMatch and labelToMatch. Could be empty if no list elements were found to match the given port and label.

indicesToRemoveFromNextGroup

public static List<Integer> indicesToRemoveFromNextGroup(List<Deque<org.onosproject.net.group.GroupKey>> allActiveKeys,
                                                         org.onosproject.net.flowobjective.NextObjective nextObjective,
                                                         org.onosproject.net.group.GroupService groupService,
                                                         org.onosproject.net.DeviceId deviceId)

Get indices to remove comparing next group with next objective.

Parameters:

allActiveKeys - the representation of the group

nextObjective - the next objective to verify

groupService - groups service for querying group information

deviceId - the device id for the device that contains the group

Returns:

a list of indexes in the allActiveKeys to remove.

verifyHashedNextObjective

public static boolean verifyHashedNextObjective(org.onosproject.net.flowobjective.NextObjective nextObjective)

The purpose of this function is to verify if the hashed next objective is supported by the current pipeline.

Parameters:

nextObjective - the hashed objective to verify

Returns:

true if the hashed objective is supported. Otherwise false.

extractVlanIdFromGroupId

public static org.onlab.packet.VlanId extractVlanIdFromGroupId(int groupId)

Extracts VlanId from given group ID.

Parameters:

groupId - the group ID

Returns:

vlan id of the group

l2FloodGroupKey

public static org.onosproject.net.group.GroupKey l2FloodGroupKey(org.onlab.packet.VlanId vlanId,
                                                                 org.onosproject.net.DeviceId deviceId)

l2MulticastGroupKey

public static org.onosproject.net.group.GroupKey l2MulticastGroupKey(org.onlab.packet.VlanId vlanId,
                                                                     org.onosproject.net.DeviceId deviceId)

l2GroupId

public static int l2GroupId(org.onlab.packet.VlanId vlanId,
                            long portNum)

l2UnfilteredGroupId

public static int l2UnfilteredGroupId(long portNum)

l2InterfaceGroupKey

public static int l2InterfaceGroupKey(org.onosproject.net.DeviceId deviceId,
                                      org.onlab.packet.VlanId vlanId,
                                      long portNumber)

Returns a hash as the L2 Interface Group Key. Keep the lower 6-bit for port since port number usually smaller than 64. Hash other information into remaining 22 bits.

Parameters:

deviceId - Device ID

vlanId - VLAN ID

portNumber - Port number

Returns:

L2 interface group key

l2UnfilteredGroupKey

public static int l2UnfilteredGroupKey(org.onosproject.net.DeviceId deviceId,
                                       long portNumber)

Returns a hash as the L2 Unfiltered Interface Group Key. Keep the lower 6-bit for port since port number usually smaller than 64. Hash other information into remaining 22 bits.

Parameters:

deviceId - Device ID

portNumber - Port number

Returns:

L2 unfiltered interface group key

l2HashGroupKey

public static int l2HashGroupKey(org.onosproject.net.DeviceId deviceId,
                                 long portNumber)

Returns a hash as the L2 Hash Group Key. Keep the lower 6-bit for port since port number usually smaller than 64. Hash other information into remaining 28 bits.

Parameters:

deviceId - Device ID

portNumber - Port number

Returns:

L2 hash group key

createUnfiltered

public static boolean createUnfiltered(org.onosproject.net.flow.TrafficTreatment treatment,
                                       org.onosproject.net.flow.TrafficSelector meta)

Helper method to decide whether L2 Interface group or L2 Unfiltered group needs to be created. L2 Unfiltered group will be created if meta has VlanIdCriterion with VlanId.ANY, and treatment has set Vlan ID action.

Parameters:

treatment - treatment passed in by the application as part of the nextObjective

meta - metadata passed in by the application as part of the nextObjective

Returns:

true if L2 Unfiltered group needs to be created, false otherwise.

doubleVlanL3UnicastGroupKey

public static int doubleVlanL3UnicastGroupKey(org.onosproject.net.DeviceId deviceId,
                                              org.onlab.packet.VlanId vlanId,
                                              long portNumber)

Returns a hash as the L3 Unicast Group Key. Keep the lower 6-bit for port since port number usually smaller than 64. Hash other information into remaining 28 bits.

Parameters:

deviceId - Device ID

vlanId - vlan ID

portNumber - Port number

Returns:

L3 unicast group key

doubleVlanL3UnicastGroupId

public static int doubleVlanL3UnicastGroupId(org.onlab.packet.VlanId vlanId,
                                             long portNum)