80 lines
3.5 KiB
Python
80 lines
3.5 KiB
Python
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# Copyright (c) 2008 Princeton University
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# Copyright (c) 2009 Advanced Micro Devices, Inc.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Authors: Steve Reinhardt
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# Brad Beckmann
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from m5.params import *
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from m5.proxy import *
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from ClockedObject import ClockedObject
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from BasicLink import BasicIntLink, BasicExtLink
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class NetworkLink(ClockedObject):
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type = 'NetworkLink'
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cxx_header = "mem/ruby/network/garnet2.0/NetworkLink.hh"
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link_id = Param.Int(Parent.link_id, "link id")
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link_latency = Param.Cycles(Parent.latency, "link latency")
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vcs_per_vnet = Param.Int(Parent.vcs_per_vnet,
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"virtual channels per virtual network")
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virt_nets = Param.Int(Parent.number_of_virtual_networks,
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"number of virtual networks")
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class CreditLink(NetworkLink):
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type = 'CreditLink'
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cxx_header = "mem/ruby/network/garnet2.0/CreditLink.hh"
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# Interior fixed pipeline links between routers
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class GarnetIntLink(BasicIntLink):
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type = 'GarnetIntLink'
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cxx_header = "mem/ruby/network/garnet2.0/GarnetLink.hh"
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# The internal link includes one forward link (for flit)
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# and one backward flow-control link (for credit)
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network_link = Param.NetworkLink(NetworkLink(), "forward link")
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credit_link = Param.CreditLink(CreditLink(), "backward flow-control link")
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# Exterior fixed pipeline links between a router and a controller
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class GarnetExtLink(BasicExtLink):
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type = 'GarnetExtLink'
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cxx_header = "mem/ruby/network/garnet2.0/GarnetLink.hh"
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# The external link is bi-directional.
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# It includes two forward links (for flits)
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# and two backward flow-control links (for credits),
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# one per direction
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_nls = []
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# In uni-directional link
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_nls.append(NetworkLink());
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# Out uni-directional link
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_nls.append(NetworkLink());
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network_links = VectorParam.NetworkLink(_nls, "forward links")
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_cls = []
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# In uni-directional link
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_cls.append(CreditLink());
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# Out uni-directional link
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_cls.append(CreditLink());
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credit_links = VectorParam.CreditLink(_cls, "backward flow-control links")
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