src/mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.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 # Authors: Steve Reinhardt
  29 #          Brad Beckmann
  30
  31 from m5.params import *
  32 from m5.proxy import *
  33 from m5.SimObject import SimObject
  34 from BasicLink import BasicIntLink, BasicExtLink
  35
  36 class NetworkLink_d(SimObject):
  37     type = 'NetworkLink_d'
  38     cxx_header = "mem/ruby/network/garnet/fixed-pipeline/NetworkLink_d.hh"
  39     link_id = Param.Int(Parent.link_id, "link id")
  40     link_latency = Param.Int(Parent.latency, "link latency")
  41     vcs_per_vnet = Param.Int(Parent.vcs_per_vnet,
  42                               "virtual channels per virtual network")
  43     virt_nets = Param.Int(Parent.number_of_virtual_networks,
  44                           "number of virtual networks")
  45     channel_width = Param.Int(Parent.bandwidth_factor,
  46                               "channel width == bw factor")
  47
  48 class CreditLink_d(NetworkLink_d):
  49     type = 'CreditLink_d'
  50     cxx_header = "mem/ruby/network/garnet/fixed-pipeline/CreditLink_d.hh"
  51
  52 # Interior fixed pipeline links between routers
  53 class GarnetIntLink_d(BasicIntLink):
  54     type = 'GarnetIntLink_d'
  55     cxx_header = "mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.hh"
  56     # The detailed fixed pipeline bi-directional link include two main
  57     # forward links and two backward flow-control links, one per direction
  58     nls = []
  59     # In uni-directional link
  60     nls.append(NetworkLink_d());
  61     # Out uni-directional link
  62     nls.append(NetworkLink_d());
  63     network_links = VectorParam.NetworkLink_d(nls, "forward links")
  64
  65     cls = []
  66     # In uni-directional link
  67     cls.append(CreditLink_d());
  68     # Out uni-directional link
  69     cls.append(CreditLink_d());
  70     credit_links = VectorParam.CreditLink_d(cls, "backward flow-control links")
  71
  72 # Exterior fixed pipeline links between a router and a controller
  73 class GarnetExtLink_d(BasicExtLink):
  74     type = 'GarnetExtLink_d'
  75     cxx_header = "mem/ruby/network/garnet/fixed-pipeline/GarnetLink_d.hh"
  76     # The detailed fixed pipeline bi-directional link include two main
  77     # forward links and two backward flow-control links, one per direction
  78     nls = []
  79     # In uni-directional link
  80     nls.append(NetworkLink_d());
  81     # Out uni-directional link
  82     nls.append(NetworkLink_d());
  83     network_links = VectorParam.NetworkLink_d(nls, "forward links")
  84
  85     cls = []
  86     # In uni-directional link
  87     cls.append(CreditLink_d());
  88     # Out uni-directional link
  89     cls.append(CreditLink_d());
  90     credit_links = VectorParam.CreditLink_d(cls, "backward flow-control links")