/*
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/*
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Asynchronous SDM NoC
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Asynchronous SDM NoC
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(C)2011 Wei Song
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(C)2011 Wei Song
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Advanced Processor Technologies Group
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Advanced Processor Technologies Group
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Computer Science, the Univ. of Manchester, UK
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Computer Science, the Univ. of Manchester, UK
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Authors:
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Authors:
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Wei Song wsong83@gmail.com
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Wei Song wsong83@gmail.com
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License: LGPL 3.0 or later
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License: LGPL 3.0 or later
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Network interface for the VC router.
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Network interface for the VC router.
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History:
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History:
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20/08/2008 Initial version. <wsong83@gmail.com>
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20/08/2008 Initial version. <wsong83@gmail.com>
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30/09/2010 Use template style packet definition. <wsong83@gmail.com>
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30/09/2010 Use template style packet definition. <wsong83@gmail.com>
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05/06/2011 Clean up for opensource. <wsong83@gmail.com>
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05/06/2011 Clean up for opensource. <wsong83@gmail.com>
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*/
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*/
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#ifndef NETWORK_ADAPTER_H_
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#ifndef NETWORK_ADAPTER_H_
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#define NETWORK_ADAPTER_H_
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#define NETWORK_ADAPTER_H_
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#include "define.h"
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#include "define.h"
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#include <systemc.h>
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#include <systemc.h>
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SC_MODULE(Network_Adapter)
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SC_MODULE(Network_Adapter)
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{
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{
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public:
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public:
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SC_HAS_PROCESS(Network_Adapter);
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SC_HAS_PROCESS(Network_Adapter);
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Network_Adapter(
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Network_Adapter(
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sc_module_name name // module name
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sc_module_name name // module name
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,unsigned int x // location x
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,unsigned int x // location x
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,unsigned int y // location y
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,unsigned int y // location y
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);
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);
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~Network_Adapter();
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~Network_Adapter();
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// interface with processor
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// interface with processor
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sc_port<sc_fifo_in_if<FRAME> > frame_in; // frame for transmission
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sc_port<sc_fifo_in_if<FRAME> > frame_in; // frame for transmission
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sc_port<sc_fifo_out_if<FRAME> > frame_out; // frame for receiving
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sc_port<sc_fifo_out_if<FRAME> > frame_out; // frame for receiving
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// interface with router
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// interface with router
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sc_port<sc_fifo_in_if<FLIT> > IP; // input port from IO driver
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sc_port<sc_fifo_in_if<FLIT> > IP; // input port from IO driver
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sc_port<sc_fifo_out_if<FLIT> > OP; // output port to IO driver
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sc_port<sc_fifo_out_if<FLIT> > OP; // output port to IO driver
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sc_in<bool> CP [SubChN]; // the credit input from the router input buffer
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sc_in<bool> CP [SubChN]; // the credit input from the router input buffer
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sc_out<bool> CPa [SubChN]; // ack to the credit
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sc_out<bool> CPa [SubChN]; // ack to the credit
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private:
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private:
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unsigned int loc_x,loc_y; // location information
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unsigned int loc_x,loc_y; // location information
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sc_fifo<FLIT> oflit; // the current flit under transmission
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sc_fifo<FLIT> oflit; // the current flit under transmission
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sc_fifo<FLIT> iflit [SubChN]; // the current flits under receiving from all input VCs
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sc_fifo<FLIT> iflit [SubChN]; // the current flits under receiving from all input VCs
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unsigned int token [SubChN]; // the token ready for each output VC
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unsigned int token [SubChN]; // the token ready for each output VC
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sc_event token_arrive [SubChN]; // the token ready event
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sc_event token_arrive [SubChN]; // the token ready event
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// functional thread
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// functional thread
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void ibuffer_thread(unsigned int); // input buffer respond thread
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void ibuffer_thread(unsigned int); // input buffer respond thread
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void obuffer_thread(unsigned int); // output buffer respond thread
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void obuffer_thread(unsigned int); // output buffer respond thread
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void oport(); // the thread transmitting flit
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void oport(); // the thread transmitting flit
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void iport(); // the thread receiving flits
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void iport(); // the thread receiving flits
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void credit_update(unsigned int); // receive credits and update the available tokens
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void credit_update(unsigned int); // receive credits and update the available tokens
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// other functions
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// other functions
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bool check_frame(const FRAME& frame); // check the correctness of frame received
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bool check_frame(const FRAME& frame); // check the correctness of frame received
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};
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};
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#endif
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#endif
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