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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 NET_INTERFACE_D_H
#define NET_INTERFACE_D_H
#include "mem/ruby/network/garnet/NetworkHeader.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh"
#include "mem/gems_common/Vector.hh"
#include "mem/ruby/common/Consumer.hh"
#include "mem/ruby/slicc_interface/Message.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/NetworkLink_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/CreditLink_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/OutVcState_d.hh"
class NetworkMessage;
class MessageBuffer;
class flitBuffer_d;
class NetworkInterface_d : public Consumer {
public:
NetworkInterface_d(int id, int virtual_networks, GarnetNetwork_d* network_ptr);
~NetworkInterface_d();
void addInPort(NetworkLink_d *in_link, CreditLink_d *credit_link);
void addOutPort(NetworkLink_d *out_link, CreditLink_d *credit_link);
void wakeup();
void addNode(Vector<MessageBuffer *> &inNode, Vector<MessageBuffer *> &outNode);
void printConfig(ostream& out) const;
void print(ostream& out) const;
int get_vnet(int vc);
private:
/**************Data Members*************/
GarnetNetwork_d *m_net_ptr;
int m_virtual_networks, m_num_vcs, m_vc_per_vnet;
NodeID m_id;
Vector<OutVcState_d *> m_out_vc_state;
Vector<int > m_vc_allocator;
int m_vc_round_robin; // For round robin scheduling
flitBuffer_d *outSrcQueue; // For modelling link contention
flitBuffer_d *creditQueue;
NetworkLink_d *inNetLink;
NetworkLink_d *outNetLink;
CreditLink_d *m_credit_link;
CreditLink_d *m_ni_credit_link;
// Input Flit Buffers
Vector<flitBuffer_d *> m_ni_buffers; // The flit buffers which will serve the Consumer
Vector<Time > m_ni_enqueue_time;
Vector<MessageBuffer *> inNode_ptr; // The Message buffers that takes messages from the protocol
Vector<MessageBuffer *> outNode_ptr; // The Message buffers that provides messages to the protocol
bool flitisizeMessage(MsgPtr msg_ptr, int vnet);
int calculateVC(int vnet);
void scheduleOutputLink();
void checkReschedule();
};
#endif
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