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/*
* 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.
*/
/*
* Router_d.C
*
* Niket Agarwal, Princeton University
*
* */
#include "mem/ruby/network/garnet-fixed-pipeline/Router_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/GarnetNetwork_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/NetworkLink_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/CreditLink_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/InputUnit_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/OutputUnit_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/RoutingUnit_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/VCallocator_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/SWallocator_d.hh"
#include "mem/ruby/network/garnet-fixed-pipeline/Switch_d.hh"
Router_d::Router_d(int id, GarnetNetwork_d *network_ptr)
{
m_id = id;
m_network_ptr = network_ptr;
m_virtual_networks = NUMBER_OF_VIRTUAL_NETWORKS;
m_vc_per_vnet = NetworkConfig::getVCsPerClass();
m_num_vcs = m_virtual_networks*m_vc_per_vnet;
m_flit_width = NetworkConfig::getFlitSize();
m_routing_unit = new RoutingUnit_d(this);
m_vc_alloc = new VCallocator_d(this);
m_sw_alloc = new SWallocator_d(this);
m_switch = new Switch_d(this);
m_input_unit.clear();
m_output_unit.clear();
buf_read_count = 0;
buf_write_count = 0;
crossbar_count = 0;
vc_local_arbit_count = 0;
vc_global_arbit_count = 0;
sw_local_arbit_count = 0;
sw_global_arbit_count = 0;
}
Router_d::~Router_d()
{
m_input_unit.deletePointers();
m_output_unit.deletePointers();
delete m_routing_unit;
delete m_vc_alloc;
delete m_sw_alloc;
delete m_switch;
}
void Router_d::init()
{
m_vc_alloc->init();
m_sw_alloc->init();
m_switch->init();
}
void Router_d::addInPort(NetworkLink_d *in_link, CreditLink_d *credit_link)
{
int port_num = m_input_unit.size();
InputUnit_d *input_unit = new InputUnit_d(port_num, this);
input_unit->set_in_link(in_link);
input_unit->set_credit_link(credit_link);
in_link->setLinkConsumer(input_unit);
credit_link->setSourceQueue(input_unit->getCreditQueue());
m_input_unit.insertAtBottom(input_unit);
}
void Router_d::addOutPort(NetworkLink_d *out_link, const NetDest& routing_table_entry, int link_weight, CreditLink_d *credit_link)
{
int port_num = m_output_unit.size();
OutputUnit_d *output_unit = new OutputUnit_d(port_num, this);
output_unit->set_out_link(out_link);
output_unit->set_credit_link(credit_link);
credit_link->setLinkConsumer(output_unit);
out_link->setSourceQueue(output_unit->getOutQueue());
m_output_unit.insertAtBottom(output_unit);
m_routing_unit->addRoute(routing_table_entry);
m_routing_unit->addWeight(link_weight);
}
void Router_d::route_req(flit_d *t_flit, InputUnit_d *in_unit, int invc)
{
m_routing_unit->RC_stage(t_flit, in_unit, invc);
}
void Router_d::vcarb_req()
{
g_eventQueue_ptr->scheduleEvent(m_vc_alloc, 1);
}
void Router_d::swarb_req()
{
g_eventQueue_ptr->scheduleEvent(m_sw_alloc, 1);
}
void Router_d::update_incredit(int in_port, int in_vc, int credit)
{
m_input_unit[in_port]->update_credit(in_vc, credit);
}
void Router_d::update_sw_winner(int inport, flit_d *t_flit)
{
m_switch->update_sw_winner(inport, t_flit);
g_eventQueue_ptr->scheduleEvent(m_switch, 1);
}
void Router_d::calculate_performance_numbers()
{
for(int i = 0; i < m_input_unit.size(); i++)
{
buf_read_count += m_input_unit[i]->get_buf_read_count();
buf_write_count += m_input_unit[i]->get_buf_write_count();
}
crossbar_count = m_switch->get_crossbar_count();
vc_local_arbit_count = m_vc_alloc->get_local_arbit_count();
vc_global_arbit_count = m_vc_alloc->get_global_arbit_count();
sw_local_arbit_count = m_sw_alloc->get_local_arbit_count();
sw_global_arbit_count = m_sw_alloc->get_global_arbit_count();
}
void Router_d::printConfig(ostream& out)
{
out << "[Router " << m_id << "] :: " << endl;
out << "[inLink - ";
for(int i = 0;i < m_input_unit.size(); i++)
out << m_input_unit[i]->get_inlink_id() << " - ";
out << "]" << endl;
out << "[outLink - ";
for(int i = 0;i < m_output_unit.size(); i++)
out << m_output_unit[i]->get_outlink_id() << " - ";
out << "]" << endl;
}
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