0962d76827
This patch adds port direction names to the links during topology creation, which can be used for better printed names for the links or for users to code up their own adaptive routing algorithms. It also adds support for every router to have an independent latency value to support heterogeneous topologies with the subsequent garnet2.0 patch.
63 lines
2.8 KiB
Python
63 lines
2.8 KiB
Python
# Copyright (c) 2011 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.SimObject import SimObject
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class BasicLink(SimObject):
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type = 'BasicLink'
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cxx_header = "mem/ruby/network/BasicLink.hh"
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link_id = Param.Int("ID in relation to other links")
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latency = Param.Cycles(1, "latency")
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# Width of the link in bytes
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# Only used by simple network.
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# Garnet models this by flit size
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bandwidth_factor = Param.Int("generic bandwidth factor, usually in bytes")
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weight = Param.Int(1, "used to restrict routing in shortest path analysis")
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class BasicExtLink(BasicLink):
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type = 'BasicExtLink'
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cxx_header = "mem/ruby/network/BasicLink.hh"
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ext_node = Param.RubyController("External node")
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int_node = Param.BasicRouter("ID of internal node")
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bandwidth_factor = 16 # only used by simple network
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class BasicIntLink(BasicLink):
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type = 'BasicIntLink'
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cxx_header = "mem/ruby/network/BasicLink.hh"
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src_node = Param.BasicRouter("Router on src end")
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dst_node = Param.BasicRouter("Router on dst end")
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# only used by Garnet.
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src_outport = Param.String("", "Outport direction at src router")
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dst_inport = Param.String("", "Inport direction at dst router")
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# only used by simple network
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bandwidth_factor = 16
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