src/mem/ruby/network/garnet2.0/GarnetLink.cc

   1 /*
   2  * Copyright (c) 2008 Princeton University
   3  * Copyright (c) 2016 Georgia Institute of Technology
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are
   8  * met: redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer;
  10  * redistributions in binary form must reproduce the above copyright
  11  * notice, this list of conditions and the following disclaimer in the
  12  * documentation and/or other materials provided with the distribution;
  13  * neither the name of the copyright holders nor the names of its
  14  * contributors may be used to endorse or promote products derived from
  15  * this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30
  31 #include "mem/ruby/network/garnet2.0/GarnetLink.hh"
  32
  33 #include "debug/RubyNetwork.hh"
  34 #include "mem/ruby/network/garnet2.0/CreditLink.hh"
  35 #include "mem/ruby/network/garnet2.0/NetworkBridge.hh"
  36 #include "mem/ruby/network/garnet2.0/NetworkLink.hh"
  37
  38 GarnetIntLink::GarnetIntLink(const Params *p)
  39     : BasicIntLink(p)
  40 {
  41     // Uni-directional
  42
  43     m_network_link = p->network_link;
  44     m_credit_link = p->credit_link;
  45
  46     srcCdcEn = p->src_cdc;
  47     dstCdcEn = p->dst_cdc;
  48
  49     srcSerdesEn = p->src_serdes;
  50     dstSerdesEn = p->dst_serdes;
  51
  52     srcBridgeEn = false;
  53     dstBridgeEn = false;
  54
  55     if (srcCdcEn || srcSerdesEn) {
  56         srcBridgeEn = true;
  57         srcNetBridge = p->src_net_bridge;
  58         srcCredBridge = p->src_cred_bridge;
  59     }
  60     if (dstCdcEn || dstSerdesEn) {
  61         dstBridgeEn = true;
  62         dstNetBridge = p->dst_net_bridge;
  63         dstCredBridge = p->dst_cred_bridge;
  64     }
  65
  66 }
  67
  68 void
  69 GarnetIntLink::init()
  70 {
  71     if (srcBridgeEn) {
  72         assert(srcNetBridge && srcCredBridge);
  73         srcNetBridge->initBridge(srcCredBridge, srcCdcEn, srcSerdesEn);
  74         srcCredBridge->initBridge(srcNetBridge, srcCdcEn, srcSerdesEn);
  75     }
  76
  77     if (dstBridgeEn) {
  78         assert(dstNetBridge && dstCredBridge);
  79         dstNetBridge->initBridge(dstCredBridge, dstCdcEn, dstSerdesEn);
  80         dstCredBridge->initBridge(dstNetBridge, dstCdcEn, dstSerdesEn);
  81     }
  82 }
  83
  84 void
  85 GarnetIntLink::print(std::ostream& out) const
  86 {
  87     out << name();
  88 }
  89
  90 GarnetIntLink *
  91 GarnetIntLinkParams::create()
  92 {
  93     return new GarnetIntLink(this);
  94 }
  95
  96 GarnetExtLink::GarnetExtLink(const Params *p)
  97     : BasicExtLink(p)
  98 {
  99     // Bi-directional
 100
 101     // In
 102     m_network_links[0] = p->network_links[0];
 103     m_credit_links[0] = p->credit_links[0];
 104
 105     // Out
 106     m_network_links[1] = p->network_links[1];
 107     m_credit_links[1] = p->credit_links[1];
 108
 109
 110     extCdcEn = p->ext_cdc;
 111     intCdcEn = p->int_cdc;
 112
 113     extSerdesEn = p->ext_serdes;
 114     intSerdesEn = p->int_serdes;
 115
 116     extBridgeEn = false;
 117     intBridgeEn = false;
 118
 119     if (extCdcEn || extSerdesEn) {
 120         extBridgeEn = true;
 121         extNetBridge[0] = p->ext_net_bridge[0];
 122         extCredBridge[0] = p->ext_cred_bridge[0];
 123         extNetBridge[1] = p->ext_net_bridge[1];
 124         extCredBridge[1] = p->ext_cred_bridge[1];
 125     }
 126
 127     if (intCdcEn || intSerdesEn) {
 128         intBridgeEn = true;
 129         intNetBridge[0] = p->int_net_bridge[0];
 130         intNetBridge[1] = p->int_net_bridge[1];
 131         intCredBridge[0] = p->int_cred_bridge[0];
 132         intCredBridge[1] = p->int_cred_bridge[1];
 133     }
 134
 135 }
 136
 137 void
 138 GarnetExtLink::init()
 139 {
 140     if (extBridgeEn) {
 141         assert(extNetBridge[0] && extCredBridge[0] &&
 142            extNetBridge[1] && extCredBridge[1]);
 143         extNetBridge[0]->initBridge(extCredBridge[0], extCdcEn, extSerdesEn);
 144         extCredBridge[0]->initBridge(extNetBridge[0], extCdcEn, extSerdesEn);
 145         extNetBridge[1]->initBridge(extCredBridge[1], extCdcEn, extSerdesEn);
 146         extCredBridge[1]->initBridge(extNetBridge[1], extCdcEn, extSerdesEn);
 147     }
 148
 149     if (intBridgeEn) {
 150         assert(intNetBridge[0] && intCredBridge[0] &&
 151            intNetBridge[1] && intCredBridge[1]);
 152         intNetBridge[0]->initBridge(intCredBridge[0], intCdcEn, intSerdesEn);
 153         intCredBridge[0]->initBridge(intNetBridge[0], intCdcEn, intSerdesEn);
 154         intNetBridge[1]->initBridge(intCredBridge[1], intCdcEn, intSerdesEn);
 155         intCredBridge[1]->initBridge(intNetBridge[1], intCdcEn, intSerdesEn);
 156     }
 157 }
 158
 159 void
 160 GarnetExtLink::print(std::ostream& out) const
 161 {
 162     out << name();
 163 }
 164
 165 GarnetExtLink *
 166 GarnetExtLinkParams::create()
 167 {
 168     return new GarnetExtLink(this);
 169 }