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+/*
+ * Copyright (c) 2008 Princeton University
+ * Copyright (c) 2016 Georgia Institute of Technology
+ * 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
+ *          Tushar Krishna
+ */
+
+
+#ifndef __MEM_RUBY_NETWORK_GARNET_ROUTER_HH__
+#define __MEM_RUBY_NETWORK_GARNET_ROUTER_HH__
+
+#include <iostream>
+#include <vector>
+
+#include "mem/ruby/common/Consumer.hh"
+#include "mem/ruby/common/NetDest.hh"
+#include "mem/ruby/network/BasicRouter.hh"
+#include "mem/ruby/network/garnet2.0/CommonTypes.hh"
+#include "mem/ruby/network/garnet2.0/GarnetNetwork.hh"
+#include "mem/ruby/network/garnet2.0/flit.hh"
+#include "params/GarnetRouter.hh"
+
+class NetworkLink;
+class CreditLink;
+class InputUnit;
+class OutputUnit;
+class RoutingUnit;
+class SwitchAllocator;
+class CrossbarSwitch;
+class FaultModel;
+
+class Router : public BasicRouter, public Consumer
+{
+  public:
+    typedef GarnetRouterParams Params;
+    Router(const Params *p);
+
+    ~Router();
+
+    void wakeup();
+    void print(std::ostream& out) const {};
+
+    void init();
+    void addInPort(PortDirection inport_dirn, NetworkLink *link,
+                   CreditLink *credit_link);
+    void addOutPort(PortDirection outport_dirn, NetworkLink *link,
+                    const NetDest& routing_table_entry,
+                    int link_weight, CreditLink *credit_link);
+
+    Cycles get_pipe_stages(){ return m_latency; }
+    int get_num_vcs()       { return m_num_vcs; }
+    int get_num_vnets()     { return m_virtual_networks; }
+    int get_vc_per_vnet()   { return m_vc_per_vnet; }
+    int get_num_inports()   { return m_input_unit.size(); }
+    int get_num_outports()  { return m_output_unit.size(); }
+    int get_id()            { return m_id; }
+
+    void init_net_ptr(GarnetNetwork* net_ptr)
+    {
+        m_network_ptr = net_ptr;
+    }
+
+    GarnetNetwork* get_net_ptr()                    { return m_network_ptr; }
+    std::vector<InputUnit *>& get_inputUnit_ref()   { return m_input_unit; }
+    std::vector<OutputUnit *>& get_outputUnit_ref() { return m_output_unit; }
+    PortDirection getOutportDirection(int outport);
+    PortDirection getInportDirection(int inport);
+
+    int route_compute(RouteInfo route, int inport, PortDirection direction);
+    void grant_switch(int inport, flit *t_flit);
+    void schedule_wakeup(Cycles time);
+
+    std::string getPortDirectionName(PortDirection direction);
+    void printFaultVector(std::ostream& out);
+    void printAggregateFaultProbability(std::ostream& out);
+
+    void regStats();
+    void collateStats();
+    void resetStats();
+
+    // For Fault Model:
+    bool get_fault_vector(int temperature, float fault_vector[]) {
+        return m_network_ptr->fault_model->fault_vector(m_id, temperature,
+                                                        fault_vector);
+    }
+    bool get_aggregate_fault_probability(int temperature,
+                                         float *aggregate_fault_prob) {
+        return m_network_ptr->fault_model->fault_prob(m_id, temperature,
+                                                      aggregate_fault_prob);
+    }
+
+    uint32_t functionalWrite(Packet *);
+
+  private:
+    Cycles m_latency;
+    int m_virtual_networks, m_num_vcs, m_vc_per_vnet;
+    GarnetNetwork *m_network_ptr;
+
+    std::vector<InputUnit *> m_input_unit;
+    std::vector<OutputUnit *> m_output_unit;
+    RoutingUnit *m_routing_unit;
+    SwitchAllocator *m_sw_alloc;
+    CrossbarSwitch *m_switch;
+
+    // Statistical variables required for power computations
+    Stats::Scalar m_buffer_reads;
+    Stats::Scalar m_buffer_writes;
+
+    Stats::Scalar m_sw_input_arbiter_activity;
+    Stats::Scalar m_sw_output_arbiter_activity;
+
+    Stats::Scalar m_crossbar_activity;
+};
+
+#endif // __MEM_RUBY_NETWORK_GARNET_ROUTER_HH__