src/mem/ruby/network/garnet2.0/GarnetNetwork.py

   1 # Copyright (c) 2008 Princeton University
   2 # Copyright (c) 2009 Advanced Micro Devices, Inc.
   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 # Author: Tushar Krishna
  29 #
  30
  31 from m5.params import *
  32 from m5.proxy import *
  33 from m5.objects.Network import RubyNetwork
  34 from m5.objects.BasicRouter import BasicRouter
  35 from m5.objects.ClockedObject import ClockedObject
  36
  37 class GarnetNetwork(RubyNetwork):
  38     type = 'GarnetNetwork'
  39     cxx_header = "mem/ruby/network/garnet2.0/GarnetNetwork.hh"
  40     num_rows = Param.Int(0, "number of rows if 2D (mesh/torus/..) topology");
  41     ni_flit_size = Param.UInt32(16, "network interface flit size in bytes")
  42     vcs_per_vnet = Param.UInt32(4, "virtual channels per virtual network");
  43     buffers_per_data_vc = Param.UInt32(4, "buffers per data virtual channel");
  44     buffers_per_ctrl_vc = Param.UInt32(1, "buffers per ctrl virtual channel");
  45     routing_algorithm = Param.Int(0,
  46         "0: Weight-based Table, 1: XY, 2: Custom");
  47     enable_fault_model = Param.Bool(False, "enable network fault model");
  48     fault_model = Param.FaultModel(NULL, "network fault model");
  49     garnet_deadlock_threshold = Param.UInt32(50000,
  50                               "network-level deadlock threshold")
  51
  52 class GarnetNetworkInterface(ClockedObject):
  53     type = 'GarnetNetworkInterface'
  54     cxx_class = 'NetworkInterface'
  55     cxx_header = "mem/ruby/network/garnet2.0/NetworkInterface.hh"
  56
  57     id = Param.UInt32("ID in relation to other network interfaces")
  58     vcs_per_vnet = Param.UInt32(Parent.vcs_per_vnet,
  59                              "virtual channels per virtual network")
  60     virt_nets = Param.UInt32(Parent.number_of_virtual_networks,
  61                           "number of virtual networks")
  62     garnet_deadlock_threshold = Param.UInt32(Parent.garnet_deadlock_threshold,
  63                                       "network-level deadlock threshold")
  64
  65 class GarnetRouter(BasicRouter):
  66     type = 'GarnetRouter'
  67     cxx_class = 'Router'
  68     cxx_header = "mem/ruby/network/garnet2.0/Router.hh"
  69     vcs_per_vnet = Param.UInt32(Parent.vcs_per_vnet,
  70                               "virtual channels per virtual network")
  71     virt_nets = Param.UInt32(Parent.number_of_virtual_networks,
  72                           "number of virtual networks")
  73     width = Param.UInt32(Parent.ni_flit_size,
  74                           "bit width supported by the router")