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