systemverilog-python

Systemverilog DPI-C call Python function

    SystemVerilog                    C                        Python
 ___________________         __________________         _________________
|                   |       |                  |       |                 |
|                   |       |  py_initial(){}; |       | import  module  |
| DPI-C func1(a,b); |       |                  |       |                 |
| DPI-C func2(c,d); |       |  func1(a,b){     |       |                 |
|                   |       |   py_func1_wrap  |       |                 |
|  py_initial();    |       |  };              |       |                 |
|                   | <---> |                  | <---> | def py_func1()  |
|  func1(x,x);      |       |  func2(c,d){     |       |                 |
|  func2(x,x);      |       |   py_func2_wrap  |       | def py_func2()  |
|                   |       |  };              |       |                 |
|  py_final();      |       |                  |       |                 |
|                   |       |  py_final(){};   |       |                 |
|___________________|       |__________________|       |_________________|

Feature

• Synopsys,Mentor Graphics,Cadence EDA Tools
• Python Function Call
• Python modules e.g. Scapy
• systemverilog data form/to python

Use Guide

0.c_call_py_only

    cd 0.c_call_py_only
    make

1.systemverilog_demo

    cd 0.systemverilog_demo
    make -f makefile.vcs     #for Synopsys VCS
    make -f makefile.questa  #for Mentor Graphics Questa
    make -f makefile.irun    #for Cadence INCISIVE    

1.systemverilog_with_python_module_code

   cd 1.systemverilog_with_python_module_code
   tar xvf scapy-2.4.4.tar.gz
   make

2.systemverilog_with_installed_python_module

    python3 -m pip install scapy
    cd 2.systemverilog_with_installed_python_module
    make

logs

\rm -rf simv* csrc* *.log __pycache__ ucli.key vc_hdrs.h stack.info.*
vcs -full64 -LDFLAGS -Wl,--no-as-needed +incdir+./c -CC -lpython3.6m -CC -lpthread -CC -ldl -CC -lutil -lm -LDFLAGS -lpython3.6m -CC -I/usr/include/python3.6m -CC -I./ -sverilog gen_pkt_tb.sv c_call_py.c -l comp.log
                         Chronologic VCS (TM)
       Version O-2018.09-SP2_Full64 -- Sat Mar  6 23:51:16 2021
               Copyright (c) 1991-2018 by Synopsys Inc.
                         ALL RIGHTS RESERVED

This program is proprietary and confidential information of Synopsys Inc.
and may be used and disclosed only as authorized in a license agreement
controlling such use and disclosure.

Parsing design file 'gen_pkt_tb.sv'
Top Level Modules:
       hello_world
No TimeScale specified
Starting vcs inline pass...

1 module and 0 UDP read.
recompiling module hello_world
make[1]: Entering directory '/home/knat/tmp/c_call_py/0.systemverilog_only/csrc'
rm -f _csrc*.so pre_vcsobj_*.so share_vcsobj_*.so
gcc -w  -pipe -fPIC -lpython3.6m -lpthread -ldl -lutil -I/usr/include/python3.6m -I./ -O -I/opt/synopsys/O-2018.09-SP2/include    -c ../c_call_py.c
if [ -x ../simv ]; then chmod -x ../simv; fi
g++  -o ../simv    -Wl,-rpath-link=./ -Wl,-rpath='$ORIGIN'/simv.daidir/ -Wl,-rpath=./simv.daidir/ -Wl,-rpath='$ORIGIN'/simv.daidir//scsim.db.dir  -Wl,--no-as-needed -lpython3.6m -rdynamic  -Wl,-rpath=/opt/synopsys/O-2018.09-SP2/linux64/lib -L/opt/synopsys/O-2018.09-SP2/linux64/lib  c_call_py.o   objs/amcQw_d.o   _4021_archive_1.so  SIM_l.o      rmapats_mop.o rmapats.o rmar.o rmar_nd.o  rmar_llvm_0_1.o rmar_llvm_0_0.o          -lzerosoft_rt_stubs -lvirsim -lerrorinf -lsnpsmalloc -lvfs -lm    -lvcsnew -lsimprofile -luclinative /opt/synopsys/O-2018.09-SP2/linux64/lib/vcs_tls.o   -Wl,-whole-archive -lvcsucli -Wl,-no-whole-archive       ./../simv.daidir/vc_hdrs.o    /opt/synopsys/O-2018.09-SP2/linux64/lib/vcs_save_restore_new.o -ldl  -lc -lm -lpthread -ldl
../simv up to date
make[1]: Leaving directory '/home/knat/tmp/c_call_py/0.systemverilog_only/csrc'
CPU time: .160 seconds to compile + .141 seconds to elab + .251 seconds to link
./simv -l run.log
Chronologic VCS simulator copyright 1991-2018
Contains Synopsys proprietary information.
Compiler version O-2018.09-SP2_Full64; Runtime version O-2018.09-SP2_Full64;  Mar  6 23:51 2021
initialize Python runtime !
###[ Ethernet ]###
  dst       = 33:32:33:44:55:66
  src       = 33:22:22:34:56:33
  type      = IPv4
###[ IP ]###
     version   = 4
     ihl       = 5
     tos       = 0x0
     len       = None
     id        = 1
     flags     =
     frag      = 0
     ttl       = 64
     proto     = udp
     chksum    = None
     src       = 127.0.0.1
     dst       = 127.0.0.1
     \options   \
###[ UDP ]###
        sport     = domain
        dport     = 18944
        len       = None
        chksum    = None
###[ Raw ]###
           load      = 'This is Python Data !'

33 32 33 44 55 66 33 22 22 34 56 33 08 00 45 00 00 31 00 01 00 00 40 11 7C B9 7F 00 00 01 7F 00 00 01 00 35 4A 00 00 1D 2D EE 54 68 69 73 20 69 73 20 50 79 74 68 6F 6E 20 44 61 74 61 20 21
print data in systemverilog !
get len  ='h3f
get data ='h3332334455663322223456330800450000310001000040117cb97f0000017f00000100354a00001d2dee5468697320697320507974686f6e2044617461202100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
get data = 323DUf3""4V E  1   @|�     5J  -�This is Python Data !
finalize Python runtime !
$finish called from file "gen_pkt_tb.sv", line 22.
$finish at simulation time                    0
           V C S   S i m u l a t i o n   R e p o r t
Time: 0
CPU Time:      2.060 seconds;       Data structure size:   0.0Mb
Sat Mar  6 23:51:18 2021