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 "mem/protocol/MachineType.hh"
  30 #include "mem/ruby/network/Network.hh"
  31 #include "mem/ruby/network/simple/Topology.hh"
  32
  33 Network::Network(const Params *p)
  34     : SimObject(p)
  35 {
  36     m_virtual_networks = p->number_of_virtual_networks;
  37     m_topology_ptr = p->topology;
  38     m_buffer_size = p->buffer_size;
  39     m_endpoint_bandwidth = p->endpoint_bandwidth;
  40     m_adaptive_routing = p->adaptive_routing;
  41     m_link_latency = p->link_latency;
  42     m_control_msg_size = p->control_msg_size;
  43
  44     //
  45     // Total nodes/controllers in network
  46     // Must make sure this is called after the State Machine constructors
  47     //
  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     //
  55     // Initialize the controller's network pointers
  56     //
  57     m_topology_ptr->initNetworkPtr(this);
  58 }
  59
  60 void Network::init()
  61 {
  62   m_data_msg_size = RubySystem::getBlockSizeBytes() + m_control_msg_size;
  63 }
  64
  65 int Network::MessageSizeType_to_int(MessageSizeType size_type)
  66 {
  67   switch(size_type) {
  68   case MessageSizeType_Undefined:
  69     ERROR_MSG("Can't convert Undefined MessageSizeType to integer");
  70     break;
  71   case MessageSizeType_Control:
  72   case MessageSizeType_Request_Control:
  73   case MessageSizeType_Reissue_Control:
  74   case MessageSizeType_Response_Control:
  75   case MessageSizeType_Writeback_Control:
  76   case MessageSizeType_Forwarded_Control:
  77   case MessageSizeType_Invalidate_Control:
  78   case MessageSizeType_Unblock_Control:
  79   case MessageSizeType_Persistent_Control:
  80   case MessageSizeType_Completion_Control:
  81     return m_control_msg_size;
  82     break;
  83   case MessageSizeType_Data:
  84   case MessageSizeType_Response_Data:
  85   case MessageSizeType_ResponseLocal_Data:
  86   case MessageSizeType_ResponseL2hit_Data:
  87   case MessageSizeType_Writeback_Data:
  88     return m_data_msg_size;
  89     break;
  90   default:
  91     ERROR_MSG("Invalid range for type MessageSizeType");
  92     break;
  93   }
  94   return 0;
  95 }