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 * Authors: Niket Agarwal
30 * Tushar Krishna
31 */
32
33
34#include "mem/ruby/network/garnet2.0/NetworkLink.hh"
35
36#include "mem/ruby/network/garnet2.0/CreditLink.hh"
37
38NetworkLink::NetworkLink(const Params *p)
39 : ClockedObject(p), Consumer(this), m_id(p->link_id),
40 m_type(NUM_LINK_TYPES_),
41 m_latency(p->link_latency),
42 linkBuffer(new flitBuffer()), link_consumer(nullptr),
43 link_srcQueue(nullptr), m_link_utilized(0),
44 m_vc_load(p->vcs_per_vnet * p->virt_nets)
45{
46}
47
48NetworkLink::~NetworkLink()
49{
50 delete linkBuffer;
51}
52
53void
54NetworkLink::setLinkConsumer(Consumer *consumer)
55{
56 link_consumer = consumer;
57}
58
59void
60NetworkLink::setSourceQueue(flitBuffer *srcQueue)
61{
62 link_srcQueue = srcQueue;
63}
64
65void
66NetworkLink::wakeup()
67{
68 if (link_srcQueue->isReady(curCycle())) {
69 flit *t_flit = link_srcQueue->getTopFlit();
70 t_flit->set_time(curCycle() + m_latency);
71 linkBuffer->insert(t_flit);
72 link_consumer->scheduleEventAbsolute(clockEdge(m_latency));
73 m_link_utilized++;
74 m_vc_load[t_flit->get_vc()]++;
75 }
76}
77
| 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 * Authors: Niket Agarwal
30 * Tushar Krishna
31 */
32
33
34#include "mem/ruby/network/garnet2.0/NetworkLink.hh"
35
36#include "mem/ruby/network/garnet2.0/CreditLink.hh"
37
38NetworkLink::NetworkLink(const Params *p)
39 : ClockedObject(p), Consumer(this), m_id(p->link_id),
40 m_type(NUM_LINK_TYPES_),
41 m_latency(p->link_latency),
42 linkBuffer(new flitBuffer()), link_consumer(nullptr),
43 link_srcQueue(nullptr), m_link_utilized(0),
44 m_vc_load(p->vcs_per_vnet * p->virt_nets)
45{
46}
47
48NetworkLink::~NetworkLink()
49{
50 delete linkBuffer;
51}
52
53void
54NetworkLink::setLinkConsumer(Consumer *consumer)
55{
56 link_consumer = consumer;
57}
58
59void
60NetworkLink::setSourceQueue(flitBuffer *srcQueue)
61{
62 link_srcQueue = srcQueue;
63}
64
65void
66NetworkLink::wakeup()
67{
68 if (link_srcQueue->isReady(curCycle())) {
69 flit *t_flit = link_srcQueue->getTopFlit();
70 t_flit->set_time(curCycle() + m_latency);
71 linkBuffer->insert(t_flit);
72 link_consumer->scheduleEventAbsolute(clockEdge(m_latency));
73 m_link_utilized++;
74 m_vc_load[t_flit->get_vc()]++;
75 }
76}
77
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