Network.cc revision 9465 
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/Network.hh"
32#include "mem/ruby/network/Topology.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_topology_ptr = p->topology;
44    m_control_msg_size = p->control_msg_size;
45
46    // Total nodes/controllers in network
47    // Must make sure this is called after the State Machine constructors
48    m_nodes = MachineType_base_number(MachineType_NUM);
49    assert(m_nodes != 0);
50
51    assert(m_virtual_networks != 0);
52    assert(m_topology_ptr != NULL);
53
54    // Initialize the controller's network pointers
55    m_topology_ptr->initNetworkPtr(this);
56    p->ruby_system->registerNetwork(this);
57}
58
59void
60Network::init()
61{
62    m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
63}
64
65uint32_t
66Network::MessageSizeType_to_int(MessageSizeType size_type)
67{
68    switch(size_type) {
69      case MessageSizeType_Undefined:
70        panic("Can't convert Undefined MessageSizeType to integer");
71        break;
72      case MessageSizeType_Control:
73      case MessageSizeType_Request_Control:
74      case MessageSizeType_Reissue_Control:
75      case MessageSizeType_Response_Control:
76      case MessageSizeType_Writeback_Control:
77      case MessageSizeType_Broadcast_Control:
78      case MessageSizeType_Multicast_Control:
79      case MessageSizeType_Forwarded_Control:
80      case MessageSizeType_Invalidate_Control:
81      case MessageSizeType_Unblock_Control:
82      case MessageSizeType_Persistent_Control:
83      case MessageSizeType_Completion_Control:
84        return m_control_msg_size;
85      case MessageSizeType_Data:
86      case MessageSizeType_Response_Data:
87      case MessageSizeType_ResponseLocal_Data:
88      case MessageSizeType_ResponseL2hit_Data:
89      case MessageSizeType_Writeback_Data:
90        return m_data_msg_size;
91      default:
92        panic("Invalid range for type MessageSizeType");
93        break;
94    }
95}
96
97const std::vector<Throttle*>*
98Network::getThrottles(NodeID id) const
99{
100    return NULL;
101}
102