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;

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39
40using namespace std;
41using m5::stl_helpers::deletePointers;
42using m5::stl_helpers::operator<<;
43
44Switch::Switch(const Params *p) : BasicRouter(p)
45{
46 m_perfect_switch = new PerfectSwitch(m_id, this, p->virt_nets);
47 m_msg_counts.resize(MessageSizeType_NUM);
48 m_msg_bytes.resize(MessageSizeType_NUM);
49}
50
51Switch::~Switch()
52{
53 delete m_perfect_switch;
54
55 // Delete throttles (one per output port)
56 deletePointers(m_throttles);

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107
108 // Hook the queues to the PerfectSwitch
109 m_perfect_switch->addOutPort(intermediateBuffers, routing_table_entry);
110
111 // Hook the queues to the Throttle
112 throttle_ptr->addLinks(intermediateBuffers, out);
113}
114
115const Throttle*
116Switch::getThrottle(LinkID link_number) const
117{
118 assert(m_throttles[link_number] != NULL);
119 return m_throttles[link_number];
120}
121
122const vector<Throttle*>*
123Switch::getThrottles() const
124{
125 return &m_throttles;
126}
127
128void
129Switch::regStats()
130{
131 for (int link = 0; link < m_throttles.size(); link++) {
132 m_throttles[link]->regStats(name());
133 }
134
135 m_avg_utilization.name(name() + ".percent_links_utilized");
136 for (unsigned int i = 0; i < m_throttles.size(); i++) {
137 m_avg_utilization += m_throttles[i]->getUtilization();
138 }
139 m_avg_utilization /= Stats::constant(m_throttles.size());
140
141 for (unsigned int type = MessageSizeType_FIRST;
142 type < MessageSizeType_NUM; ++type) {
143 m_msg_counts[type]
144 .name(name() + ".msg_count." +
145 MessageSizeType_to_string(MessageSizeType(type)))
146 .flags(Stats::nozero)
147 ;
148 m_msg_bytes[type]
149 .name(name() + ".msg_bytes." +
150 MessageSizeType_to_string(MessageSizeType(type)))
151 .flags(Stats::nozero)
152 ;
153
154 for (unsigned int i = 0; i < m_throttles.size(); i++) {
155 m_msg_counts[type] += m_throttles[i]->getMsgCount(type);
156 }
157 m_msg_bytes[type] = m_msg_counts[type] * Stats::constant(
158 Network::MessageSizeType_to_int(MessageSizeType(type)));
159 }
160}
161
162void
163Switch::resetStats()
164{
165 m_perfect_switch->clearStats();
166 for (int i = 0; i < m_throttles.size(); i++) {
167 m_throttles[i]->clearStats();
168 }
169}
170
171void
172Switch::collateStats()
173{
174 m_perfect_switch->collateStats();
175 for (int i = 0; i < m_throttles.size(); i++) {
176 m_throttles[i]->collateStats();
177 }
178}
179
180void
181Switch::print(std::ostream& out) const
182{
183 // FIXME printing
184 out << "[Switch]";
185}
186
187bool
188Switch::functionalRead(Packet *pkt)

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