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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 NETWORK_LINK_H
#define NETWORK_LINK_H
#include "mem/ruby/network/garnet-fixed-pipeline/NetworkHeader.hh"
#include "mem/ruby/network/garnet-flexible-pipeline/FlexibleConsumer.hh"
#include "mem/ruby/network/garnet-flexible-pipeline/flitBuffer.hh"
#include "mem/gems_common/PrioHeap.hh"
#include "mem/ruby/common/NetDest.hh"
class GarnetNetwork;
class NetworkLink : public FlexibleConsumer {
public:
NetworkLink();
NetworkLink(int id, int latency, GarnetNetwork *net_ptr);
~NetworkLink();
void setLinkConsumer(FlexibleConsumer *consumer);
void setSourceQueue(flitBuffer *srcQueue);
flit* peekLink();
flit* consumeLink();
void print(ostream& out) const {}
bool is_vc_ready(flit *t_flit);
int get_id();
void setInPort(int port);
void setOutPort(int port);
void wakeup();
bool isReady();
void grant_vc_link(int vc, Time grant_time);
void release_vc_link(int vc, Time release_time);
void request_vc_link(int vc, NetDest destination, Time request_time);
bool isBufferNotFull_link(int vc);
void setSource(FlexibleConsumer *source);
double getLinkUtilization();
Vector<int> getVcLoad();
protected:
int m_id, m_latency;
int m_in_port, m_out_port;
int m_link_utilized;
Vector<int > m_vc_load;
GarnetNetwork *m_net_ptr;
flitBuffer *linkBuffer;
FlexibleConsumer *link_consumer;
FlexibleConsumer *link_source;
flitBuffer *link_srcQueue;
};
#endif
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