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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
*/
#include "mem/ruby/network/garnet/flexible-pipeline/GarnetNetwork.hh"
#include "mem/ruby/network/garnet/flexible-pipeline/NetworkLink.hh"
NetworkLink::NetworkLink(const Params *p)
: SimObject(p)
{
linkBuffer = new flitBuffer();
m_in_port = 0;
m_out_port = 0;
m_link_utilized = 0;
m_latency = p->link_latency;
m_id = p->link_id;
int num_net = p->virt_nets;
int num_vc = p->vcs_per_vnet;
m_vc_load.resize(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);
}
std::vector<int>
NetworkLink::getVcLoad()
{
return m_vc_load;
}
double
NetworkLink::getLinkUtilization()
{
return (double(m_link_utilized));
}
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())
return;
flit *t_flit = link_srcQueue->getTopFlit();
t_flit->set_time(g_system_ptr->getTime() + m_latency);
linkBuffer->insert(t_flit);
link_consumer->scheduleEvent(this, m_latency);
m_link_utilized++;
m_vc_load[t_flit->get_vc()]++;
}
flit*
NetworkLink::peekLink()
{
return linkBuffer->peekTopFlit();
}
flit*
NetworkLink::consumeLink()
{
return linkBuffer->getTopFlit();
}
NetworkLink *
NetworkLinkParams::create()
{
return new NetworkLink(this);
}
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