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wsong0210 |
/*
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Asynchronous SDM NoC
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(C)2011 Wei Song
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Advanced Processor Technologies Group
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Computer Science, the Univ. of Manchester, UK
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Authors:
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Wei Song wsong83@gmail.com
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License: LGPL 3.0 or later
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Router configuration header file for SDM routers.
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Possible configuration combinations:
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* Wormhole (set VCN to 1)
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ENABLE_EOF [ENABLE_CHANNEL_SLICING] [ENABLE_LOOKAHEAD]
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* SDM (set VCN > 1 without define ENABLE_CLOS)
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ENABLE_EOF [ENABLE_CHANNEL_SLICING] [ENABLE_LOOKAHEAD] [ENABLE_MRMA]
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* SDM-Clos (set VCN > 1 and define ENABLE_CLOS)
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ENABLE_EOF ENABLE_CLOS [ENABLE_CHANNEL_SLICING] [ENABLE_LOOKAHEAD] [ENABLE_CRRD [ENABLE_MRMA]] [ENABLE_BUFFERED_CLOS]
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The combinations not presented above are illegal, which may produce unexpected failures.
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History:
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20/09/2009 Initial version. <wsong83@gmail.com>
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23/05/2011 Clean up for opensource. <wsong83@gmail.com>
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26/05/2011 Add ENABLE_MRMA and configuration explanations. <wsong83@gmail.com>
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21/06/2011 Prepare to support buffered Clos. <wsong83@gmail.com>
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*/
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// if VCN > 1, set ENABLE_CLOS to use the 2-stage Clos switch for less switching area
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// `define ENABLE_CLOS
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// Using the asynchronous virsion of the Concurrent round-robine dispatching
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// algorithm for the 2-stage Clos can save some area but introduce a 5%
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// throughput loss
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// `define ENABLE_CRRD
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// for the SDM router using crossbars and the Clos router using CRRD
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// algorithm, using the multi-resource match arbiter may save the area in
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// switch allocators
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// `define ENABLE_MRMA
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// set to enable channel slicing for fast data paths
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// `define ENABLE_CHANNEL_SLICING
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// set to use the early acknowledge of lokkahead pipelines in the critical cycle
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// `define ENABLE_LOOKAHEAD
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// always set in wormhole and SDM routers to enable the eof bit in data pipeline stages
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`define ENABLE_EOF
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// set to insert buffers inside the Clos switch
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`define ENABLE_BUFFERED_CLOS
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