1 files changed, 147 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc b/src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc
new file mode 100644
index 000000000..e586ece9e
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+++ b/src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * NetworkLink.C
+ *
+ * Niket Agarwal, Princeton University
+ *
+ * */
+
+#include "NetworkLink.hh"
+#include "NetworkConfig.hh"
+#include "GarnetNetwork.hh"
+
+NetworkLink::NetworkLink(int id, int latency, GarnetNetwork *net_ptr)
+{
+        m_id = id;
+        linkBuffer = new flitBuffer();
+        m_in_port = 0;
+        m_out_port = 0;
+        m_link_utilized = 0;
+        m_net_ptr = net_ptr;
+        m_latency = latency;
+        int num_net = NUMBER_OF_VIRTUAL_NETWORKS;
+        int num_vc = NetworkConfig::getVCsPerClass();
+        m_vc_load.setSize(num_net*num_vc);
+
+        for(int i = 0; i < num_net*num_vc; i++)
+                m_vc_load[i] = 0;
+}
+
+NetworkLink::~NetworkLink()
+{
+        delete linkBuffer;
+}
+
+int NetworkLink::get_id()
+{
+        return m_id;
+}
+
+void NetworkLink::setLinkConsumer(FlexibleConsumer *consumer)
+{
+        link_consumer = consumer;
+}
+
+void NetworkLink::setSourceQueue(flitBuffer *srcQueue)
+{
+        link_srcQueue = srcQueue;
+}
+
+void NetworkLink::setSource(FlexibleConsumer *source)
+{
+        link_source = source;
+}
+void NetworkLink::request_vc_link(int vc, NetDest destination, Time request_time)
+{
+        link_consumer->request_vc(vc, m_in_port, destination, request_time);
+}
+bool NetworkLink::isBufferNotFull_link(int vc)
+{
+        return link_consumer->isBufferNotFull(vc, m_in_port);
+}
+
+void NetworkLink::grant_vc_link(int vc, Time grant_time)
+{
+        link_source->grant_vc(m_out_port, vc, grant_time);
+}
+
+void NetworkLink::release_vc_link(int vc, Time release_time)
+{
+        link_source->release_vc(m_out_port, vc, release_time);
+}
+
+Vector<int> NetworkLink::getVcLoad()
+{
+        return m_vc_load;
+}
+
+double NetworkLink::getLinkUtilization()
+{
+        Time m_ruby_start = m_net_ptr->getRubyStartTime();
+        return (double(m_link_utilized)) / (double(g_eventQueue_ptr->getTime()-m_ruby_start));
+}
+
+bool NetworkLink::isReady()
+{
+        return linkBuffer->isReady();
+}
+
+void NetworkLink::setInPort(int port)
+{
+        m_in_port = port;
+}
+
+void NetworkLink::setOutPort(int port)
+{
+        m_out_port = port;
+}
+
+void NetworkLink::wakeup()
+{
+        if(link_srcQueue->isReady())
+        {
+                flit *t_flit = link_srcQueue->getTopFlit();
+                t_flit->set_time(g_eventQueue_ptr->getTime() + m_latency);
+                linkBuffer->insert(t_flit);
+                g_eventQueue_ptr->scheduleEvent(link_consumer, m_latency);
+                m_link_utilized++;
+                m_vc_load[t_flit->get_vc()]++;
+        }
+}
+
+flit* NetworkLink::peekLink()
+{
+        return linkBuffer->peekTopFlit();
+}
+
+flit* NetworkLink::consumeLink()
+{
+        return linkBuffer->getTopFlit();
+}