111666Stushar@ece.gatech.edu/* 211666Stushar@ece.gatech.edu * Copyright (c) 2008 Princeton University 311666Stushar@ece.gatech.edu * Copyright (c) 2016 Georgia Institute of Technology 411666Stushar@ece.gatech.edu * All rights reserved. 511666Stushar@ece.gatech.edu * 611666Stushar@ece.gatech.edu * Redistribution and use in source and binary forms, with or without 711666Stushar@ece.gatech.edu * modification, are permitted provided that the following conditions are 811666Stushar@ece.gatech.edu * met: redistributions of source code must retain the above copyright 911666Stushar@ece.gatech.edu * notice, this list of conditions and the following disclaimer; 1011666Stushar@ece.gatech.edu * redistributions in binary form must reproduce the above copyright 1111666Stushar@ece.gatech.edu * notice, this list of conditions and the following disclaimer in the 1211666Stushar@ece.gatech.edu * documentation and/or other materials provided with the distribution; 1311666Stushar@ece.gatech.edu * neither the name of the copyright holders nor the names of its 1411666Stushar@ece.gatech.edu * contributors may be used to endorse or promote products derived from 1511666Stushar@ece.gatech.edu * this software without specific prior written permission. 1611666Stushar@ece.gatech.edu * 1711666Stushar@ece.gatech.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1811666Stushar@ece.gatech.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1911666Stushar@ece.gatech.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2011666Stushar@ece.gatech.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2111666Stushar@ece.gatech.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2211666Stushar@ece.gatech.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2311666Stushar@ece.gatech.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2411666Stushar@ece.gatech.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2511666Stushar@ece.gatech.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2611666Stushar@ece.gatech.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2711666Stushar@ece.gatech.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2811666Stushar@ece.gatech.edu * 2911666Stushar@ece.gatech.edu * Authors: Niket Agarwal 3011666Stushar@ece.gatech.edu * Tushar Krishna 3111666Stushar@ece.gatech.edu */ 3211666Stushar@ece.gatech.edu 3311666Stushar@ece.gatech.edu 3411666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/NetworkLink.hh" 3511666Stushar@ece.gatech.edu 3611666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/CreditLink.hh" 3711666Stushar@ece.gatech.edu 3811666Stushar@ece.gatech.eduNetworkLink::NetworkLink(const Params *p) 3911666Stushar@ece.gatech.edu : ClockedObject(p), Consumer(this), m_id(p->link_id), 4011666Stushar@ece.gatech.edu m_type(NUM_LINK_TYPES_), 4111666Stushar@ece.gatech.edu m_latency(p->link_latency), 4211666Stushar@ece.gatech.edu linkBuffer(new flitBuffer()), link_consumer(nullptr), 4311666Stushar@ece.gatech.edu link_srcQueue(nullptr), m_link_utilized(0), 4411666Stushar@ece.gatech.edu m_vc_load(p->vcs_per_vnet * p->virt_nets) 4511666Stushar@ece.gatech.edu{ 4611666Stushar@ece.gatech.edu} 4711666Stushar@ece.gatech.edu 4811666Stushar@ece.gatech.eduNetworkLink::~NetworkLink() 4911666Stushar@ece.gatech.edu{ 5011666Stushar@ece.gatech.edu delete linkBuffer; 5111666Stushar@ece.gatech.edu} 5211666Stushar@ece.gatech.edu 5311666Stushar@ece.gatech.eduvoid 5411666Stushar@ece.gatech.eduNetworkLink::setLinkConsumer(Consumer *consumer) 5511666Stushar@ece.gatech.edu{ 5611666Stushar@ece.gatech.edu link_consumer = consumer; 5711666Stushar@ece.gatech.edu} 5811666Stushar@ece.gatech.edu 5911666Stushar@ece.gatech.eduvoid 6011666Stushar@ece.gatech.eduNetworkLink::setSourceQueue(flitBuffer *srcQueue) 6111666Stushar@ece.gatech.edu{ 6211666Stushar@ece.gatech.edu link_srcQueue = srcQueue; 6311666Stushar@ece.gatech.edu} 6411666Stushar@ece.gatech.edu 6511666Stushar@ece.gatech.eduvoid 6611666Stushar@ece.gatech.eduNetworkLink::wakeup() 6711666Stushar@ece.gatech.edu{ 6811666Stushar@ece.gatech.edu if (link_srcQueue->isReady(curCycle())) { 6911666Stushar@ece.gatech.edu flit *t_flit = link_srcQueue->getTopFlit(); 7011666Stushar@ece.gatech.edu t_flit->set_time(curCycle() + m_latency); 7111666Stushar@ece.gatech.edu linkBuffer->insert(t_flit); 7211666Stushar@ece.gatech.edu link_consumer->scheduleEventAbsolute(clockEdge(m_latency)); 7311666Stushar@ece.gatech.edu m_link_utilized++; 7411666Stushar@ece.gatech.edu m_vc_load[t_flit->get_vc()]++; 7511666Stushar@ece.gatech.edu } 7611666Stushar@ece.gatech.edu} 7711666Stushar@ece.gatech.edu 7812071Sjavier.cano555@gmail.comvoid 7912071Sjavier.cano555@gmail.comNetworkLink::resetStats() 8012071Sjavier.cano555@gmail.com{ 8112071Sjavier.cano555@gmail.com for (int i = 0; i < m_vc_load.size(); i++) { 8212071Sjavier.cano555@gmail.com m_vc_load[i] = 0; 8312071Sjavier.cano555@gmail.com } 8412071Sjavier.cano555@gmail.com 8512071Sjavier.cano555@gmail.com m_link_utilized = 0; 8612071Sjavier.cano555@gmail.com} 8712071Sjavier.cano555@gmail.com 8811666Stushar@ece.gatech.eduNetworkLink * 8911666Stushar@ece.gatech.eduNetworkLinkParams::create() 9011666Stushar@ece.gatech.edu{ 9111666Stushar@ece.gatech.edu return new NetworkLink(this); 9211666Stushar@ece.gatech.edu} 9311666Stushar@ece.gatech.edu 9411666Stushar@ece.gatech.eduCreditLink * 9511666Stushar@ece.gatech.eduCreditLinkParams::create() 9611666Stushar@ece.gatech.edu{ 9711666Stushar@ece.gatech.edu return new CreditLink(this); 9811666Stushar@ece.gatech.edu} 9911666Stushar@ece.gatech.edu 10011666Stushar@ece.gatech.eduuint32_t 10111666Stushar@ece.gatech.eduNetworkLink::functionalWrite(Packet *pkt) 10211666Stushar@ece.gatech.edu{ 10311666Stushar@ece.gatech.edu return linkBuffer->functionalWrite(pkt); 10411666Stushar@ece.gatech.edu} 105