Network.cc revision 10076:f81d94b53661 
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/protocol/MachineType.hh"
31#include "mem/ruby/network/BasicLink.hh"
32#include "mem/ruby/network/Network.hh"
33#include "mem/ruby/system/System.hh"
34
35uint32_t Network::m_virtual_networks;
36uint32_t Network::m_control_msg_size;
37uint32_t Network::m_data_msg_size;
38
39Network::Network(const Params *p)
40    : ClockedObject(p)
41{
42    m_virtual_networks = p->number_of_virtual_networks;
43    m_control_msg_size = p->control_msg_size;
44
45    // Total nodes/controllers in network
46    // Must make sure this is called after the State Machine constructors
47    m_nodes = MachineType_base_number(MachineType_NUM);
48    assert(m_nodes != 0);
49    assert(m_virtual_networks != 0);
50
51    m_topology_ptr = new Topology(p->routers.size(), p->ext_links,
52                                  p->int_links);
53    p->ruby_system->registerNetwork(this);
54
55    // Initialize the controller's network pointers
56    for (std::vector<BasicExtLink*>::const_iterator i = p->ext_links.begin();
57         i != p->ext_links.end(); ++i) {
58        BasicExtLink *ext_link = (*i);
59        AbstractController *abs_cntrl = ext_link->params()->ext_node;
60        abs_cntrl->initNetworkPtr(this);
61    }
62
63    // Register a callback function for combining the statistics
64    Stats::registerDumpCallback(new StatsCallback(this));
65}
66
67void
68Network::init()
69{
70    m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
71}
72
73uint32_t
74Network::MessageSizeType_to_int(MessageSizeType size_type)
75{
76    switch(size_type) {
77      case MessageSizeType_Control:
78      case MessageSizeType_Request_Control:
79      case MessageSizeType_Reissue_Control:
80      case MessageSizeType_Response_Control:
81      case MessageSizeType_Writeback_Control:
82      case MessageSizeType_Broadcast_Control:
83      case MessageSizeType_Multicast_Control:
84      case MessageSizeType_Forwarded_Control:
85      case MessageSizeType_Invalidate_Control:
86      case MessageSizeType_Unblock_Control:
87      case MessageSizeType_Persistent_Control:
88      case MessageSizeType_Completion_Control:
89        return m_control_msg_size;
90      case MessageSizeType_Data:
91      case MessageSizeType_Response_Data:
92      case MessageSizeType_ResponseLocal_Data:
93      case MessageSizeType_ResponseL2hit_Data:
94      case MessageSizeType_Writeback_Data:
95        return m_data_msg_size;
96      default:
97        panic("Invalid range for type MessageSizeType");
98        break;
99    }
100}
101