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 3412492Sodanrc@yahoo.com.br#ifndef __MEM_RUBY_NETWORK_GARNET2_0_NETWORKINTERFACE_HH__ 3512492Sodanrc@yahoo.com.br#define __MEM_RUBY_NETWORK_GARNET2_0_NETWORKINTERFACE_HH__ 3611666Stushar@ece.gatech.edu 3711666Stushar@ece.gatech.edu#include <iostream> 3811666Stushar@ece.gatech.edu#include <vector> 3911666Stushar@ece.gatech.edu 4011666Stushar@ece.gatech.edu#include "mem/ruby/common/Consumer.hh" 4111666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/CommonTypes.hh" 4211666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/CreditLink.hh" 4311666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/GarnetNetwork.hh" 4411666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/NetworkLink.hh" 4511666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/OutVcState.hh" 4611666Stushar@ece.gatech.edu#include "mem/ruby/slicc_interface/Message.hh" 4711666Stushar@ece.gatech.edu#include "params/GarnetNetworkInterface.hh" 4811666Stushar@ece.gatech.edu 4911666Stushar@ece.gatech.educlass MessageBuffer; 5011666Stushar@ece.gatech.educlass flitBuffer; 5111666Stushar@ece.gatech.edu 5211666Stushar@ece.gatech.educlass NetworkInterface : public ClockedObject, public Consumer 5311666Stushar@ece.gatech.edu{ 5411666Stushar@ece.gatech.edu public: 5511666Stushar@ece.gatech.edu typedef GarnetNetworkInterfaceParams Params; 5611666Stushar@ece.gatech.edu NetworkInterface(const Params *p); 5711666Stushar@ece.gatech.edu ~NetworkInterface(); 5811666Stushar@ece.gatech.edu 5911666Stushar@ece.gatech.edu void init(); 6011666Stushar@ece.gatech.edu 6111666Stushar@ece.gatech.edu void addInPort(NetworkLink *in_link, CreditLink *credit_link); 6211666Stushar@ece.gatech.edu void addOutPort(NetworkLink *out_link, CreditLink *credit_link, 6311666Stushar@ece.gatech.edu SwitchID router_id); 6411666Stushar@ece.gatech.edu 6511797Smatthew.poremba@amd.com void dequeueCallback(); 6611666Stushar@ece.gatech.edu void wakeup(); 6711666Stushar@ece.gatech.edu void addNode(std::vector<MessageBuffer *> &inNode, 6811666Stushar@ece.gatech.edu std::vector<MessageBuffer *> &outNode); 6911666Stushar@ece.gatech.edu 7011666Stushar@ece.gatech.edu void print(std::ostream& out) const; 7111666Stushar@ece.gatech.edu int get_vnet(int vc); 7211666Stushar@ece.gatech.edu int get_router_id() { return m_router_id; } 7311666Stushar@ece.gatech.edu void init_net_ptr(GarnetNetwork *net_ptr) { m_net_ptr = net_ptr; } 7411666Stushar@ece.gatech.edu 7511666Stushar@ece.gatech.edu uint32_t functionalWrite(Packet *); 7611666Stushar@ece.gatech.edu 7711666Stushar@ece.gatech.edu private: 7811666Stushar@ece.gatech.edu GarnetNetwork *m_net_ptr; 7911666Stushar@ece.gatech.edu const NodeID m_id; 8011666Stushar@ece.gatech.edu const int m_virtual_networks, m_vc_per_vnet, m_num_vcs; 8111666Stushar@ece.gatech.edu int m_router_id; // id of my router 8211666Stushar@ece.gatech.edu std::vector<OutVcState *> m_out_vc_state; 8311666Stushar@ece.gatech.edu std::vector<int> m_vc_allocator; 8411666Stushar@ece.gatech.edu int m_vc_round_robin; // For round robin scheduling 8511666Stushar@ece.gatech.edu flitBuffer *outFlitQueue; // For modeling link contention 8611666Stushar@ece.gatech.edu flitBuffer *outCreditQueue; 8711762Sjieming.yin@amd.com int m_deadlock_threshold; 8811666Stushar@ece.gatech.edu 8911666Stushar@ece.gatech.edu NetworkLink *inNetLink; 9011666Stushar@ece.gatech.edu NetworkLink *outNetLink; 9111666Stushar@ece.gatech.edu CreditLink *inCreditLink; 9211666Stushar@ece.gatech.edu CreditLink *outCreditLink; 9311666Stushar@ece.gatech.edu 9411797Smatthew.poremba@amd.com // Queue for stalled flits 9511797Smatthew.poremba@amd.com std::deque<flit *> m_stall_queue; 9611797Smatthew.poremba@amd.com std::vector<int> m_stall_count; 9711797Smatthew.poremba@amd.com 9811666Stushar@ece.gatech.edu // Input Flit Buffers 9911666Stushar@ece.gatech.edu // The flit buffers which will serve the Consumer 10011666Stushar@ece.gatech.edu std::vector<flitBuffer *> m_ni_out_vcs; 10111666Stushar@ece.gatech.edu std::vector<Cycles> m_ni_out_vcs_enqueue_time; 10211666Stushar@ece.gatech.edu 10311666Stushar@ece.gatech.edu // The Message buffers that takes messages from the protocol 10411666Stushar@ece.gatech.edu std::vector<MessageBuffer *> inNode_ptr; 10511666Stushar@ece.gatech.edu // The Message buffers that provides messages to the protocol 10611666Stushar@ece.gatech.edu std::vector<MessageBuffer *> outNode_ptr; 10711762Sjieming.yin@amd.com // When a vc stays busy for a long time, it indicates a deadlock 10811762Sjieming.yin@amd.com std::vector<int> vc_busy_counter; 10911666Stushar@ece.gatech.edu 11011797Smatthew.poremba@amd.com bool checkStallQueue(); 11111666Stushar@ece.gatech.edu bool flitisizeMessage(MsgPtr msg_ptr, int vnet); 11211666Stushar@ece.gatech.edu int calculateVC(int vnet); 11311797Smatthew.poremba@amd.com 11411666Stushar@ece.gatech.edu void scheduleOutputLink(); 11511666Stushar@ece.gatech.edu void checkReschedule(); 11611797Smatthew.poremba@amd.com void sendCredit(flit *t_flit, bool is_free); 11711797Smatthew.poremba@amd.com 11811797Smatthew.poremba@amd.com void incrementStats(flit *t_flit); 11911666Stushar@ece.gatech.edu}; 12011666Stushar@ece.gatech.edu 12112492Sodanrc@yahoo.com.br#endif // __MEM_RUBY_NETWORK_GARNET2_0_NETWORKINTERFACE_HH__ 122