src/mem/ruby/network/garnet/flexible-pipeline/GarnetLink.py

# Copyright (c) 2008 Princeton University
# Copyright (c) 2009 Advanced Micro Devices, Inc.
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# Authors: Steve Reinhardt
#          Brad Beckmann

from m5.params import *
from m5.proxy import *
from m5.SimObject import SimObject
from BasicLink import BasicIntLink, BasicExtLink

class NetworkLink(SimObject):
    type = 'NetworkLink'
    link_id = Param.Int(Parent.link_id, "link id")
    link_latency = Param.Int(Parent.latency, "link latency")
    vcs_per_vnet = Param.Int(Parent.vcs_per_vnet,
                              "virtual channels per virtual network")
    virt_nets = Param.Int(Parent.number_of_virtual_networks,
                          "number of virtual networks")
    channel_width = Param.Int(Parent.bandwidth_factor,
                              "channel width == bw factor")

# Interior fixed pipeline links between routers
class GarnetIntLink(BasicIntLink):
    type = 'GarnetIntLink'
    # The flexible pipeline bi-directional link only include two main
    # forward links and no backward flow-control links
    nls = []
    # In uni-directional link
    nls.append(NetworkLink()); 
    # Out uni-directional link
    nls.append(NetworkLink());
    network_links = VectorParam.NetworkLink(nls, "forward links")

# Exterior fixed pipeline links between a router and a controller
class GarnetExtLink(BasicExtLink):
    type = 'GarnetExtLink'
    # The flexible pipeline bi-directional link only include two main
    # forward links and no backward flow-control links
    nls = []
    # In uni-directional link
    nls.append(NetworkLink());
    # Out uni-directional link
    nls.append(NetworkLink());
    network_links = VectorParam.NetworkLink(nls, "forward links")