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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 ROUTER_D_H
#define ROUTER_D_H
#include "mem/ruby/network/garnet/NetworkHeader.hh"
#include "mem/gems_common/Vector.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/flit_d.hh"
#include "mem/ruby/common/NetDest.hh"
#include "mem/ruby/network/orion/power_router_init.hh"
class GarnetNetwork_d;
class NetworkLink_d;
class CreditLink_d;
class InputUnit_d;
class OutputUnit_d;
class RoutingUnit_d;
class VCallocator_d;
class SWallocator_d;
class Switch_d;
class Router_d {
public:
Router_d(int id, GarnetNetwork_d *network_ptr);
~Router_d();
void init();
void addInPort(NetworkLink_d *link, CreditLink_d *credit_link);
void addOutPort(NetworkLink_d *link, const NetDest& routing_table_entry, int link_weight, CreditLink_d *credit_link);
int get_num_vcs() { return m_num_vcs; }
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(); }
void printConfig(ostream& out);
int get_id() { return m_id; }
GarnetNetwork_d* get_net_ptr() { return m_network_ptr; }
Vector<InputUnit_d *>& get_inputUnit_ref() { return m_input_unit; }
Vector<OutputUnit_d *>& get_outputUnit_ref() { return m_output_unit; }
void update_sw_winner(int inport, flit_d *t_flit);
void update_incredit(int in_port, int in_vc, int credit);
void route_req(flit_d *t_flit, InputUnit_d* in_unit, int invc);
void vcarb_req();
void swarb_req();
void power_router_initialize(power_router *router, power_router_info *info);
double calculate_power();
double calculate_offline_power(power_router*, power_router_info*);
void calculate_performance_numbers();
private:
int m_id;
int m_virtual_networks, m_num_vcs, m_vc_per_vnet;
GarnetNetwork_d *m_network_ptr;
int m_flit_width;
double buf_read_count, buf_write_count, crossbar_count, vc_local_arbit_count, vc_global_arbit_count, sw_local_arbit_count, sw_global_arbit_count;
Vector<InputUnit_d *> m_input_unit;
Vector<OutputUnit_d *> m_output_unit;
RoutingUnit_d *m_routing_unit;
VCallocator_d *m_vc_alloc;
SWallocator_d *m_sw_alloc;
Switch_d *m_switch;
};
#endif
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