Network.cc revision 11108:6342ddf6d733
1/* 2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#include "base/misc.hh" 30#include "mem/ruby/network/BasicLink.hh" 31#include "mem/ruby/network/Network.hh" 32#include "mem/ruby/system/RubySystem.hh" 33 34uint32_t Network::m_virtual_networks; 35uint32_t Network::m_control_msg_size; 36uint32_t Network::m_data_msg_size; 37 38Network::Network(const Params *p) 39 : ClockedObject(p) 40{ 41 m_virtual_networks = p->number_of_virtual_networks; 42 m_control_msg_size = p->control_msg_size; 43 44 // Total nodes/controllers in network 45 // Must make sure this is called after the State Machine constructors 46 m_nodes = MachineType_base_number(MachineType_NUM); 47 assert(m_nodes != 0); 48 assert(m_virtual_networks != 0); 49 50 m_topology_ptr = new Topology(p->routers.size(), p->ext_links, 51 p->int_links); 52 53 // Allocate to and from queues 54 // Queues that are getting messages from protocol 55 m_toNetQueues.resize(m_nodes); 56 57 // Queues that are feeding the protocol 58 m_fromNetQueues.resize(m_nodes); 59 60 m_ordered.resize(m_virtual_networks); 61 62 for (int i = 0; i < m_virtual_networks; i++) { 63 m_ordered[i] = false; 64 } 65 66 params()->ruby_system->registerNetwork(this); 67 68 // Initialize the controller's network pointers 69 for (std::vector<BasicExtLink*>::const_iterator i = p->ext_links.begin(); 70 i != p->ext_links.end(); ++i) { 71 BasicExtLink *ext_link = (*i); 72 AbstractController *abs_cntrl = ext_link->params()->ext_node; 73 abs_cntrl->initNetworkPtr(this); 74 } 75 76 // Register a callback function for combining the statistics 77 Stats::registerDumpCallback(new StatsCallback(this)); 78} 79 80Network::~Network() 81{ 82 for (int node = 0; node < m_nodes; node++) { 83 84 // Delete the Message Buffers 85 for (auto& it : m_toNetQueues[node]) { 86 delete it; 87 } 88 89 for (auto& it : m_fromNetQueues[node]) { 90 delete it; 91 } 92 } 93 94 delete m_topology_ptr; 95} 96 97void 98Network::init() 99{ 100 m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size; 101} 102 103uint32_t 104Network::MessageSizeType_to_int(MessageSizeType size_type) 105{ 106 switch(size_type) { 107 case MessageSizeType_Control: 108 case MessageSizeType_Request_Control: 109 case MessageSizeType_Reissue_Control: 110 case MessageSizeType_Response_Control: 111 case MessageSizeType_Writeback_Control: 112 case MessageSizeType_Broadcast_Control: 113 case MessageSizeType_Multicast_Control: 114 case MessageSizeType_Forwarded_Control: 115 case MessageSizeType_Invalidate_Control: 116 case MessageSizeType_Unblock_Control: 117 case MessageSizeType_Persistent_Control: 118 case MessageSizeType_Completion_Control: 119 return m_control_msg_size; 120 case MessageSizeType_Data: 121 case MessageSizeType_Response_Data: 122 case MessageSizeType_ResponseLocal_Data: 123 case MessageSizeType_ResponseL2hit_Data: 124 case MessageSizeType_Writeback_Data: 125 return m_data_msg_size; 126 default: 127 panic("Invalid range for type MessageSizeType"); 128 break; 129 } 130} 131