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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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 <numeric>
30
31#include "base/stl_helpers.hh"
32#include "mem/protocol/MessageSizeType.hh"
33#include "mem/protocol/Protocol.hh"
34#include "mem/ruby/buffers/MessageBuffer.hh"
35#include "mem/ruby/network/Network.hh"
36#include "mem/ruby/network/simple/PerfectSwitch.hh"
37#include "mem/ruby/network/simple/Switch.hh"
38#include "mem/ruby/network/simple/Throttle.hh"
39
40using namespace std;
41using m5::stl_helpers::deletePointers;
42using m5::stl_helpers::operator<<;
43
44Switch::Switch(SwitchID sid, SimpleNetwork* network_ptr)
45{
46 m_perfect_switch_ptr = new PerfectSwitch(sid, network_ptr);
47 m_switch_id = sid;
48}
49
50Switch::~Switch()
51{
52 delete m_perfect_switch_ptr;
53
54 // Delete throttles (one per output port)
55 deletePointers(m_throttles);
56
57 // Delete MessageBuffers
58 deletePointers(m_buffers_to_free);
59}
60
61void
62Switch::addInPort(const vector<MessageBuffer*>& in)
63{
64 m_perfect_switch_ptr->addInPort(in);
65}
66
67void
68Switch::addOutPort(const vector<MessageBuffer*>& out,
69 const NetDest& routing_table_entry, int link_latency, int bw_multiplier)
70{
71 Throttle* throttle_ptr = NULL;
72
73 // Create a throttle
74 throttle_ptr = new Throttle(m_switch_id, m_throttles.size(), link_latency,
75 bw_multiplier);
76 m_throttles.push_back(throttle_ptr);
77
78 // Create one buffer per vnet (these are intermediaryQueues)
79 vector<MessageBuffer*> intermediateBuffers;
80 for (int i = 0; i < out.size(); i++) {
81 MessageBuffer* buffer_ptr = new MessageBuffer;
82 // Make these queues ordered
83 buffer_ptr->setOrdering(true);
84 Network* net_ptr = RubySystem::getNetwork();
85 if (net_ptr->getBufferSize() > 0) {
86 buffer_ptr->resize(net_ptr->getBufferSize());
87 }
88 intermediateBuffers.push_back(buffer_ptr);
89 m_buffers_to_free.push_back(buffer_ptr);
90 }
91
92 // Hook the queues to the PerfectSwitch
93 m_perfect_switch_ptr->addOutPort(intermediateBuffers, routing_table_entry);
94
95 // Hook the queues to the Throttle
96 throttle_ptr->addLinks(intermediateBuffers, out);
97}

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121
122const Throttle*
123Switch::getThrottle(LinkID link_number) const
124{
125 assert(m_throttles[link_number] != NULL);
126 return m_throttles[link_number];
127}
128
129const vector<Throttle*>*
130Switch::getThrottles() const
131{
132 return &m_throttles;
133}
134
135void
136Switch::printStats(std::ostream& out) const
137{

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171 out << endl;
172
173 // Traffic breakdown
174 for (int link = 0; link < m_throttles.size(); link++) {
175 Throttle* throttle_ptr = m_throttles[link];
176 if (!throttle_ptr)
177 continue;
178
179 const vector<vector<int> >& message_counts =
180 throttle_ptr->getCounters();
181 for (int int_type = 0; int_type < MessageSizeType_NUM; int_type++) {
182 MessageSizeType type = MessageSizeType(int_type);
183 const vector<int> &mct = message_counts[type];
184 int sum = accumulate(mct.begin(), mct.end(), 0);
185 if (sum == 0)
186 continue;
187
188 out << " outgoing_messages_switch_" << m_switch_id
189 << "_link_" << link << "_" << type << ": " << sum << " "
190 << sum * RubySystem::getNetwork()->MessageSizeType_to_int(type)
191 << " ";
192 out << mct;
193 out << " base_latency: "
194 << throttle_ptr->getLatency() << endl;
195 }
196 }
197 out << endl;
198}
199
200void
201Switch::clearStats()

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