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ttcp seems to have some problems on zynqmp_qemu with lwip stack

Summary

ttcp seems to have some problems on zynqmp_qemu BSP with lwip stack.

tcp: image ttcp cannot print report.

udp: image ttcp printed the report, but a large number of udp packets were lost.

Steps to reproduce

  1. build zynqmp_qemu BSP.
cd ~/RTEMS_devel/src/rtems
./waf distclean
./waf configure --prefix=$HOME/RTEMS_devel/rtems/6 --rtems-config=$HOME/RTEMS_devel/config.ini
./waf
./waf install

config.ini:

[aarch64/zynqmp_qemu]
RTEMS_POSIX_API = True
  1. build rtems-lwip 
cd ~/RTEMS_devel/src/rtems-lwip
./waf configure --prefix=$HOME/RTEMS_devel/rtems/6 --rtems-bsps aarch64/zynqmp_qemu
./waf
./waf install
  1. build rtems-net-services 
cd ~/RTEMS_devel/src/rtems-net-services
./waf configure --prefix=$HOME/RTEMS_devel/rtems/6 --rtems-bsps aarch64/zynqmp_qemu
./waf
./waf install
  1. run in qemu.
qemu-system-aarch64 -no-reboot -nographic -serial mon:stdio -machine xlnx-zcu102 -m 4096 -nic user,model=cadence_gem,id=u1,hostfwd=tcp::5001-:5001,hostfwd=udp::5001-:5001 -kernel build/aarch64-rtems6-zynqmp_qemu/ttcpshell01.exe
  1. build ttcp on host.
cd src/rtems-net-services/ttcp
gcc ttcp.c
  1. Enter the command line in qemu RTEMS shell.
ttcp -s -r

or

ttcp -s -r -u
  1. Enter the command line in host shell.
cd src/rtems-net-services/ttcp
./a.out -s -t -u 127.0.0.1

or

./a.out -s -t 127.0.0.1
Edited by Ning Yang