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Diffstat (limited to 'src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc')
-rw-r--r-- | src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc b/src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc new file mode 100644 index 000000000..a170047ac --- /dev/null +++ b/src/mem/ruby/network/garnet-flexible-pipeline/NetworkLink.cc @@ -0,0 +1,147 @@ +/* + * 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. + */ + +/* + * NetworkLink.C + * + * Niket Agarwal, Princeton University + * + * */ + +#include "mem/ruby/network/garnet-flexible-pipeline/NetworkLink.hh" +#include "mem/ruby/network/garnet-flexible-pipeline/NetworkConfig.hh" +#include "mem/ruby/network/garnet-flexible-pipeline/GarnetNetwork.hh" + +NetworkLink::NetworkLink(int id, int latency, GarnetNetwork *net_ptr) +{ + m_id = id; + linkBuffer = new flitBuffer(); + m_in_port = 0; + m_out_port = 0; + m_link_utilized = 0; + m_net_ptr = net_ptr; + m_latency = latency; + int num_net = NUMBER_OF_VIRTUAL_NETWORKS; + int num_vc = NetworkConfig::getVCsPerClass(); + m_vc_load.setSize(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); +} + +Vector<int> NetworkLink::getVcLoad() +{ + return m_vc_load; +} + +double NetworkLink::getLinkUtilization() +{ + Time m_ruby_start = m_net_ptr->getRubyStartTime(); + return (double(m_link_utilized)) / (double(g_eventQueue_ptr->getTime()-m_ruby_start)); +} + +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()) + { + flit *t_flit = link_srcQueue->getTopFlit(); + t_flit->set_time(g_eventQueue_ptr->getTime() + m_latency); + linkBuffer->insert(t_flit); + g_eventQueue_ptr->scheduleEvent(link_consumer, m_latency); + m_link_utilized++; + m_vc_load[t_flit->get_vc()]++; + } +} + +flit* NetworkLink::peekLink() +{ + return linkBuffer->peekTopFlit(); +} + +flit* NetworkLink::consumeLink() +{ + return linkBuffer->getTopFlit(); +} |