src/mem/ruby/network/Network.cc

   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
  35 uint32_t Network::m_virtual_networks;
  36 uint32_t Network::m_control_msg_size;
  37 uint32_t Network::m_data_msg_size;
  38
  39 Network::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
  64 void
  65 Network::init()
  66 {
  67     m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
  68 }
  69
  70 uint32_t
  71 Network::MessageSizeType_to_int(MessageSizeType size_type)
  72 {
  73     switch(size_type) {
  74       case MessageSizeType_Undefined:
  75         panic("Can't convert Undefined MessageSizeType to integer");
  76         break;
  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
 102 const std::vector<Throttle*>*
 103 Network::getThrottles(NodeID id) const
 104 {
 105     return NULL;
 106 }