RoutingUnit.hh revision 12492
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_ROUTINGUNIT_HH__ 3512492Sodanrc@yahoo.com.br#define __MEM_RUBY_NETWORK_GARNET2_0_ROUTINGUNIT_HH__ 3611666Stushar@ece.gatech.edu 3711666Stushar@ece.gatech.edu#include "mem/ruby/common/Consumer.hh" 3811666Stushar@ece.gatech.edu#include "mem/ruby/common/NetDest.hh" 3911666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/CommonTypes.hh" 4011666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/GarnetNetwork.hh" 4111666Stushar@ece.gatech.edu#include "mem/ruby/network/garnet2.0/flit.hh" 4211666Stushar@ece.gatech.edu 4311666Stushar@ece.gatech.educlass InputUnit; 4411666Stushar@ece.gatech.educlass Router; 4511666Stushar@ece.gatech.edu 4611666Stushar@ece.gatech.educlass RoutingUnit 4711666Stushar@ece.gatech.edu{ 4811666Stushar@ece.gatech.edu public: 4911666Stushar@ece.gatech.edu RoutingUnit(Router *router); 5011666Stushar@ece.gatech.edu int outportCompute(RouteInfo route, 5111666Stushar@ece.gatech.edu int inport, 5211666Stushar@ece.gatech.edu PortDirection inport_dirn); 5311666Stushar@ece.gatech.edu 5411666Stushar@ece.gatech.edu // Topology-agnostic Routing Table based routing (default) 5511666Stushar@ece.gatech.edu void addRoute(const NetDest& routing_table_entry); 5611666Stushar@ece.gatech.edu void addWeight(int link_weight); 5711666Stushar@ece.gatech.edu 5811666Stushar@ece.gatech.edu // get output port from routing table 5911666Stushar@ece.gatech.edu int lookupRoutingTable(int vnet, NetDest net_dest); 6011666Stushar@ece.gatech.edu 6111666Stushar@ece.gatech.edu // Topology-specific direction based routing 6211666Stushar@ece.gatech.edu void addInDirection(PortDirection inport_dirn, int inport); 6311666Stushar@ece.gatech.edu void addOutDirection(PortDirection outport_dirn, int outport); 6411666Stushar@ece.gatech.edu 6511666Stushar@ece.gatech.edu // Routing for Mesh 6611666Stushar@ece.gatech.edu int outportComputeXY(RouteInfo route, 6711666Stushar@ece.gatech.edu int inport, 6811666Stushar@ece.gatech.edu PortDirection inport_dirn); 6911666Stushar@ece.gatech.edu 7011666Stushar@ece.gatech.edu // Custom Routing Algorithm using Port Directions 7111666Stushar@ece.gatech.edu int outportComputeCustom(RouteInfo route, 7211666Stushar@ece.gatech.edu int inport, 7311666Stushar@ece.gatech.edu PortDirection inport_dirn); 7411666Stushar@ece.gatech.edu 7511666Stushar@ece.gatech.edu private: 7611666Stushar@ece.gatech.edu Router *m_router; 7711666Stushar@ece.gatech.edu 7811666Stushar@ece.gatech.edu // Routing Table 7911666Stushar@ece.gatech.edu std::vector<NetDest> m_routing_table; 8011666Stushar@ece.gatech.edu std::vector<int> m_weight_table; 8111666Stushar@ece.gatech.edu 8211666Stushar@ece.gatech.edu // Inport and Outport direction to idx maps 8311666Stushar@ece.gatech.edu std::map<PortDirection, int> m_inports_dirn2idx; 8411666Stushar@ece.gatech.edu std::map<int, PortDirection> m_inports_idx2dirn; 8511666Stushar@ece.gatech.edu std::map<int, PortDirection> m_outports_idx2dirn; 8611666Stushar@ece.gatech.edu std::map<PortDirection, int> m_outports_dirn2idx; 8711666Stushar@ece.gatech.edu}; 8811666Stushar@ece.gatech.edu 8912492Sodanrc@yahoo.com.br#endif // __MEM_RUBY_NETWORK_GARNET2_0_ROUTINGUNIT_HH__ 90