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