97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
/*
|
|
* 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 __MEM_RUBY_NETWORK_GARNET_FLEXIBLE_PIPELINE_NETWORK_LINK_HH__
|
|
#define __MEM_RUBY_NETWORK_GARNET_FLEXIBLE_PIPELINE_NETWORK_LINK_HH__
|
|
|
|
#include <iostream>
|
|
#include <vector>
|
|
|
|
#include "mem/ruby/common/NetDest.hh"
|
|
#include "mem/ruby/network/garnet/flexible-pipeline/FlexibleConsumer.hh"
|
|
#include "mem/ruby/network/garnet/flexible-pipeline/flitBuffer.hh"
|
|
#include "mem/ruby/network/garnet/NetworkHeader.hh"
|
|
#include "params/NetworkLink.hh"
|
|
#include "sim/clocked_object.hh"
|
|
|
|
class GarnetNetwork;
|
|
|
|
class NetworkLink : public ClockedObject, public Consumer
|
|
{
|
|
public:
|
|
typedef NetworkLinkParams Params;
|
|
NetworkLink(const Params *p);
|
|
~NetworkLink();
|
|
|
|
void setLinkConsumer(FlexibleConsumer *consumer);
|
|
void setSourceQueue(flitBuffer *srcQueue);
|
|
flit *peekLink();
|
|
flit *consumeLink();
|
|
|
|
void print(std::ostream& out) const {}
|
|
|
|
bool is_vc_ready(flit *t_flit);
|
|
|
|
int get_id() const { return m_id; }
|
|
void setInPort(int port);
|
|
void setOutPort(int port);
|
|
void wakeup();
|
|
bool isReady();
|
|
void grant_vc_link(int vc, Cycles grant_time);
|
|
void release_vc_link(int vc, Cycles release_time);
|
|
void request_vc_link(int vc, NetDest destination, Cycles request_time);
|
|
bool isBufferNotFull_link(int vc);
|
|
void setSource(FlexibleConsumer *source);
|
|
void init_net_ptr(GarnetNetwork* net_ptr) { m_net_ptr = net_ptr; }
|
|
|
|
unsigned int getLinkUtilization() const { return m_link_utilized; }
|
|
const std::vector<unsigned int> & getVcLoad() const { return m_vc_load; }
|
|
|
|
bool functionalRead(Packet *);
|
|
uint32_t functionalWrite(Packet *);
|
|
|
|
private:
|
|
int m_id;
|
|
Cycles m_latency;
|
|
int m_in_port, m_out_port;
|
|
GarnetNetwork *m_net_ptr;
|
|
|
|
flitBuffer *linkBuffer;
|
|
FlexibleConsumer *link_consumer;
|
|
FlexibleConsumer *link_source;
|
|
flitBuffer *link_srcQueue;
|
|
|
|
// Statistical variables
|
|
unsigned int m_link_utilized;
|
|
std::vector<unsigned int> m_vc_load;
|
|
};
|
|
|
|
#endif // __MEM_RUBY_NETWORK_GARNET_FLEXIBLE_PIPELINE_NETWORK_LINK_HH__
|