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diff --git a/src/mem/ruby/network/garnet/fixed-pipeline/NetworkLink_d.hh b/src/mem/ruby/network/garnet/fixed-pipeline/NetworkLink_d.hh
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+/*
+ * Copyright (c) 2008 Princeton University
+ * 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.
+ *
+ * Authors: Niket Agarwal
+ */
+
+#ifndef NETWORK_LINK_D_H
+#define NETWORK_LINK_D_H
+
+#include "mem/ruby/network/garnet/NetworkHeader.hh"
+#include "mem/ruby/common/Consumer.hh"
+#include "mem/ruby/network/garnet/fixed-pipeline/flitBuffer_d.hh"
+#include "mem/gems_common/PrioHeap.hh"
+#include "mem/ruby/network/orion/power_bus.hh"
+
+class GarnetNetwork_d;
+
+class NetworkLink_d : public Consumer {
+public:
+        //NetworkLink_d(int id);
+        ~NetworkLink_d();
+
+        NetworkLink_d(int id, int link_latency, GarnetNetwork_d *net_ptr);
+        void setLinkConsumer(Consumer *consumer);
+        void setSourceQueue(flitBuffer_d *srcQueue);
+        void print(ostream& out) const{}
+        int getLinkUtilization();
+        Vector<int> getVcLoad();
+        int get_id(){return m_id;}
+        void wakeup();
+
+        double calculate_offline_power(power_bus*);
+        double calculate_power();
+
+        inline bool isReady()
+        {
+                return linkBuffer->isReady();
+        }
+        inline flit_d* peekLink()
+        {
+                return linkBuffer->peekTopFlit();
+        }
+        inline flit_d* consumeLink()
+        {
+                return linkBuffer->getTopFlit();
+        }
+
+protected:
+        int m_id;
+        int m_latency;
+        GarnetNetwork_d *m_net_ptr;
+
+        flitBuffer_d *linkBuffer;
+        Consumer *link_consumer;
+        flitBuffer_d *link_srcQueue;
+        int m_link_utilized;
+        Vector<int > m_vc_load;
+        int m_flit_width;
+};
+
+#endif
+