alshabib | f1216ed | 2014-09-03 11:53:54 -0700 | [diff] [blame] | 1 | package org.onlab.onos.of.drivers.impl; |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 2 | |
alshabib | c944fd0 | 2014-09-10 17:55:17 -0700 | [diff] [blame^] | 3 | import java.util.Collections; |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 4 | import java.util.List; |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 5 | import java.util.concurrent.atomic.AtomicBoolean; |
| 6 | |
| 7 | import org.onlab.onos.of.controller.Dpid; |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 8 | import org.onlab.onos.of.controller.driver.AbstractOpenFlowSwitch; |
| 9 | import org.onlab.onos.of.controller.driver.SwitchDriverSubHandshakeAlreadyStarted; |
| 10 | import org.onlab.onos.of.controller.driver.SwitchDriverSubHandshakeCompleted; |
| 11 | import org.onlab.onos.of.controller.driver.SwitchDriverSubHandshakeNotStarted; |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 12 | import org.projectfloodlight.openflow.protocol.OFBarrierRequest; |
| 13 | import org.projectfloodlight.openflow.protocol.OFDescStatsReply; |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 14 | import org.projectfloodlight.openflow.protocol.OFFactory; |
| 15 | import org.projectfloodlight.openflow.protocol.OFMessage; |
| 16 | import org.slf4j.Logger; |
| 17 | import org.slf4j.LoggerFactory; |
| 18 | |
| 19 | /** |
| 20 | * OFDescriptionStatistics Vendor (Manufacturer Desc.): Nicira, Inc. Make |
| 21 | * (Hardware Desc.) : Open vSwitch Model (Datapath Desc.) : None Software : |
| 22 | * 2.1.0 (or whatever version + build) Serial : None |
| 23 | */ |
| 24 | public class OFSwitchImplOVS13 extends AbstractOpenFlowSwitch { |
| 25 | |
| 26 | private static Logger log = |
| 27 | LoggerFactory.getLogger(OFSwitchImplOVS13.class); |
| 28 | |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 29 | private final AtomicBoolean driverHandshakeComplete; |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 30 | private OFFactory factory; |
| 31 | private long barrierXidToWaitFor = -1; |
| 32 | |
| 33 | public OFSwitchImplOVS13(Dpid dpid, OFDescStatsReply desc) { |
| 34 | super(dpid); |
| 35 | driverHandshakeComplete = new AtomicBoolean(false); |
| 36 | setSwitchDescription(desc); |
| 37 | } |
| 38 | |
| 39 | @Override |
| 40 | public String toString() { |
| 41 | return "OFSwitchImplOVS13 [" + ((channel != null) |
| 42 | ? channel.getRemoteAddress() : "?") |
| 43 | + " DPID[" + ((getStringId() != null) ? getStringId() : "?") + "]]"; |
| 44 | } |
| 45 | |
| 46 | @Override |
| 47 | public void startDriverHandshake() { |
| 48 | log.debug("Starting driver handshake for sw {}", getStringId()); |
| 49 | if (startDriverHandshakeCalled) { |
| 50 | throw new SwitchDriverSubHandshakeAlreadyStarted(); |
| 51 | } |
| 52 | startDriverHandshakeCalled = true; |
| 53 | factory = factory(); |
| 54 | configureSwitch(); |
| 55 | } |
| 56 | |
| 57 | @Override |
| 58 | public boolean isDriverHandshakeComplete() { |
| 59 | if (!startDriverHandshakeCalled) { |
| 60 | throw new SwitchDriverSubHandshakeNotStarted(); |
| 61 | } |
| 62 | return driverHandshakeComplete.get(); |
| 63 | } |
| 64 | |
| 65 | @Override |
| 66 | public void processDriverHandshakeMessage(OFMessage m) { |
| 67 | if (!startDriverHandshakeCalled) { |
| 68 | throw new SwitchDriverSubHandshakeNotStarted(); |
| 69 | } |
| 70 | if (driverHandshakeComplete.get()) { |
| 71 | throw new SwitchDriverSubHandshakeCompleted(m); |
| 72 | } |
| 73 | |
| 74 | switch (m.getType()) { |
| 75 | case BARRIER_REPLY: |
| 76 | if (m.getXid() == barrierXidToWaitFor) { |
| 77 | driverHandshakeComplete.set(true); |
| 78 | } |
| 79 | break; |
| 80 | |
| 81 | case ERROR: |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 82 | log.error("Switch {} Error {}", getStringId(), m); |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 83 | break; |
| 84 | |
| 85 | case FEATURES_REPLY: |
| 86 | break; |
| 87 | case FLOW_REMOVED: |
| 88 | break; |
| 89 | case GET_ASYNC_REPLY: |
| 90 | // OFAsyncGetReply asrep = (OFAsyncGetReply)m; |
| 91 | // decodeAsyncGetReply(asrep); |
| 92 | break; |
| 93 | |
| 94 | case PACKET_IN: |
| 95 | break; |
| 96 | case PORT_STATUS: |
| 97 | break; |
| 98 | case QUEUE_GET_CONFIG_REPLY: |
| 99 | break; |
| 100 | case ROLE_REPLY: |
| 101 | break; |
| 102 | |
| 103 | case STATS_REPLY: |
| 104 | // processStatsReply((OFStatsReply) m); |
| 105 | break; |
| 106 | |
| 107 | default: |
| 108 | log.debug("Received message {} during switch-driver subhandshake " |
| 109 | + "from switch {} ... Ignoring message", m, getStringId()); |
| 110 | |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | |
| 115 | private void configureSwitch() { |
| 116 | sendBarrier(true); |
| 117 | } |
| 118 | |
| 119 | |
| 120 | private void sendBarrier(boolean finalBarrier) { |
| 121 | int xid = getNextTransactionId(); |
| 122 | if (finalBarrier) { |
| 123 | barrierXidToWaitFor = xid; |
| 124 | } |
| 125 | OFBarrierRequest br = factory |
| 126 | .buildBarrierRequest() |
| 127 | .setXid(xid) |
| 128 | .build(); |
| 129 | sendMsg(br); |
| 130 | } |
| 131 | |
| 132 | @Override |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 133 | public Boolean supportNxRole() { |
| 134 | return false; |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 135 | } |
| 136 | |
| 137 | @Override |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 138 | public void write(OFMessage msg) { |
alshabib | c944fd0 | 2014-09-10 17:55:17 -0700 | [diff] [blame^] | 139 | channel.write(Collections.singletonList(msg)); |
alshabib | 6171f18 | 2014-09-02 19:00:32 -0700 | [diff] [blame] | 140 | |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public void write(List<OFMessage> msgs) { |
| 145 | channel.write(msgs); |
alshabib | d777b20 | 2014-08-28 17:52:55 -0700 | [diff] [blame] | 146 | } |
| 147 | } |