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/*
 Asynchronous SDM NoC
 (C)2011 Wei Song
 Advanced Processor Technologies Group
 Computer Science, the Univ. of Manchester, UK
 
 Authors:
 Wei Song     wsong83@gmail.com
 
 License: LGPL 3.0 or later
 
 A SystemC network adapter/interface for NoC simulation.
 
 History:
 23/12/2008  Initial version. <wsong83@gmail.com>
 30/09/2010  Use template style packet definition. <wsong83@gmail.com>
 16/10/2010  Support SDM. <wsong83@gmail.com>
 05/06/2011  Clean up for opensource. <wsong83@gmail.com>
 
*/
 
#include "ni.h"
 
Network_Adapter::Network_Adapter(
         sc_module_name     name            // module name
        ,unsigned int       x               // location x
        ,unsigned int       y               // location y
    ):
         sc_module(name),
         frame_in("FrmIn"),
         frame_out("FrmOut"),
         IP("IP"),
         OP("OP"),
         loc_x(x),
         loc_y(y),
         oflit(1)
{
  sc_spawn_options opt;
 
  for(unsigned int i=0; i<SubChN; i++) {
    token[i] = BufDepth/2;
  }
 
  for(unsigned int i=0; i<SubChN; i++) {
    sc_spawn(sc_bind(&Network_Adapter::ibuffer_thread, this, i), NULL, &opt);
    sc_spawn(sc_bind(&Network_Adapter::obuffer_thread, this, i), NULL, &opt);
    sc_spawn(sc_bind(&Network_Adapter::credit_update, this, i), NULL, &opt);
  }
 
  SC_THREAD(oport);
  SC_THREAD(iport);
 
}
 
Network_Adapter::~Network_Adapter()
{
}
 
// read in the incoming frame
void Network_Adapter::ibuffer_thread(unsigned int ii){
  FRAME mframe;
  FLIT mflit;
 
  while(1){
    mframe.clear();
 
    while(1) {
      mflit = iflit[ii].read();
      mframe << mflit;
 
      if(mflit.ftype == F_TL)   break;
    }
 
    frame_out->write(mframe);
  }
}
 
// send out a frame
void Network_Adapter::obuffer_thread(unsigned int ii){
 
  FRAME mframe;
  FLIT mflit;
 
  while(1){
    mframe = frame_in->read();
 
    while(1) {
      mframe >> mflit;
      mflit.vcn = ii;
 
      //fetch a token
      if(token[ii] == 0)
        wait(token_arrive[ii]);
 
      token[ii]--;
 
      oflit.write(mflit);
 
      if(mflit.ftype == F_TL) break;
    }
  }
}
 
 
void Network_Adapter::oport() {
  FLIT mflit;
 
  while(1) {
    mflit = oflit.read();
    OP->write(mflit);
  }
}
 
void Network_Adapter::iport() {
  FLIT mflit;
 
  while(1) {
    mflit = IP->read();
    iflit[mflit.vcn].write(mflit);
  }
}
 
void Network_Adapter::credit_update(unsigned int ii) {
 
  CPa[ii].write(false);
  while(1) {
    if(!CP[ii].read())
      wait(CP[ii].posedge_event());
 
    token[ii]++;
    token_arrive[ii].notify();
    CPa[ii].write(true);
 
    wait(CP[ii].negedge_event());
    CPa[ii].write(false);
  }
}
 
bool Network_Adapter::check_frame(const FRAME& frame)
{
    // TODO: check the integerity, dummy right noe
    return true;
}
 
 
 
 

Line No.	Rev	Author	Line
1	44	wsong0210	`/*`
2			`Asynchronous SDM NoC`
3			`(C)2011 Wei Song`
4			`Advanced Processor Technologies Group`
5			`Computer Science, the Univ. of Manchester, UK`
6
7			`Authors:`
8			`Wei Song wsong83@gmail.com`
9
10			`License: LGPL 3.0 or later`
11
12			`A SystemC network adapter/interface for NoC simulation.`
13
14			`History:`
15			`23/12/2008 Initial version. <wsong83@gmail.com>`
16			`30/09/2010 Use template style packet definition. <wsong83@gmail.com>`
17			`16/10/2010 Support SDM. <wsong83@gmail.com>`
18			`05/06/2011 Clean up for opensource. <wsong83@gmail.com>`
19
20			`*/`
21
22			`#include "ni.h"`
23
24			`Network_Adapter::Network_Adapter(`
25			`sc_module_name name // module name`
26			`,unsigned int x // location x`
27			`,unsigned int y // location y`
28			`):`
29			`sc_module(name),`
30			`frame_in("FrmIn"),`
31			`frame_out("FrmOut"),`
32			`IP("IP"),`
33			`OP("OP"),`
34			`loc_x(x),`
35			`loc_y(y),`
36			`oflit(1)`
37			`{`
38			`sc_spawn_options opt;`
39
40			`for(unsigned int i=0; i<SubChN; i++) {`
41			`token[i] = BufDepth/2;`
42			`}`
43
44			`for(unsigned int i=0; i<SubChN; i++) {`
45			`sc_spawn(sc_bind(&Network_Adapter::ibuffer_thread, this, i), NULL, &opt);`
46			`sc_spawn(sc_bind(&Network_Adapter::obuffer_thread, this, i), NULL, &opt);`
47			`sc_spawn(sc_bind(&Network_Adapter::credit_update, this, i), NULL, &opt);`
48			`}`
49
50			`SC_THREAD(oport);`
51			`SC_THREAD(iport);`
52
53			`}`
54
55			`Network_Adapter::~Network_Adapter()`
56			`{`
57			`}`
58
59			`// read in the incoming frame`
60			`void Network_Adapter::ibuffer_thread(unsigned int ii){`
61			`FRAME mframe;`
62			`FLIT mflit;`
63
64			`while(1){`
65			`mframe.clear();`
66
67			`while(1) {`
68			`mflit = iflit[ii].read();`
69			`mframe << mflit;`
70
71			`if(mflit.ftype == F_TL) break;`
72			`}`
73
74			`frame_out->write(mframe);`
75			`}`
76			`}`
77
78			`// send out a frame`
79			`void Network_Adapter::obuffer_thread(unsigned int ii){`
80
81			`FRAME mframe;`
82			`FLIT mflit;`
83
84			`while(1){`
85			`mframe = frame_in->read();`
86
87			`while(1) {`
88			`mframe >> mflit;`
89			`mflit.vcn = ii;`
90
91			`//fetch a token`
92			`if(token[ii] == 0)`
93			`wait(token_arrive[ii]);`
94
95			`token[ii]--;`
96
97			`oflit.write(mflit);`
98
99			`if(mflit.ftype == F_TL) break;`
100			`}`
101			`}`
102			`}`
103
104
105			`void Network_Adapter::oport() {`
106			`FLIT mflit;`
107
108			`while(1) {`
109			`mflit = oflit.read();`
110			`OP->write(mflit);`
111			`}`
112			`}`
113
114			`void Network_Adapter::iport() {`
115			`FLIT mflit;`
116
117			`while(1) {`
118			`mflit = IP->read();`
119			`iflit[mflit.vcn].write(mflit);`
120			`}`
121			`}`
122
123			`void Network_Adapter::credit_update(unsigned int ii) {`
124
125			`CPa[ii].write(false);`
126			`while(1) {`
127			`if(!CP[ii].read())`
128			`wait(CP[ii].posedge_event());`
129
130			`token[ii]++;`
131			`token_arrive[ii].notify();`
132			`CPa[ii].write(true);`
133
134			`wait(CP[ii].negedge_event());`
135			`CPa[ii].write(false);`
136			`}`
137			`}`
138
139			`bool Network_Adapter::check_frame(const FRAME& frame)`
140			`{`
141			`// TODO: check the integerity, dummy right noe`
142			`return true;`
143			`}`
144
145
146
147

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[/] [async_sdm_noc/] [branches/] [init/] [vc/] [tb/] [ni.cpp] - Blame information for rev 60