Hi Ajit,

I'm running into a problem with trying to run nic_single_core_perf on the
new NIC.
The current configuration uses trex version v2.82.
However, I'm running into an error when it tries to actually do a test case
in the nic_single_core_perf.

The output looks like this when it reaches a test case:

TestNicSingleCorePerf: Test running at parameters: framesize: 64, rxd/txd:
> 512
>                       dut.rhea: ./x86_64-native-linuxapp-gcc/app/testpmd
> -l 16,17 -n 4 -w 0000:81:00.0 -w 0000:81:00.1
>  --file-prefix=dpdk_11307_20200804160513    -- -i  --portmask=0x3 --txd=512
> --rxd=512
>                       dut.rhea: start
>          TestNicSingleCorePerf: Test Case test_perf_nic_single_core Result
> ERROR: Traceback (most recent call last):
>   File "/opt/dts/framework/test_case.py", line 316, in _execute_test_case
>     case_obj()
>   File "tests/TestSuite_nic_single_core_perf.py", line 198, in
> test_perf_nic_single_core
>     self.perf_test(self.nb_ports)
>   File "tests/TestSuite_nic_single_core_perf.py", line 259, in perf_test
>     _, packets_received =
> self.tester.pktgen.measure_throughput(stream_ids=streams,
> options=traffic_opt)
>   File "/opt/dts/framework/pktgen_base.py", line 245, in measure_throughput
>     self._prepare_transmission(stream_ids=stream_ids)
>   File "/opt/dts/framework/pktgen_trex.py", line 779, in
> _prepare_transmission
>     self._conn.reset(ports=self._ports)
>   File
> "/opt/v2.82/automation/trex_control_plane/interactive/trex/common/trex_api_annotators.py",
> line 51, in wrap2
>     ret = f(*args, **kwargs)
>   File
> "/opt/v2.82/automation/trex_control_plane/interactive/trex/stl/trex_stl_client.py",
> line 339, in reset
>     self.clear_stats(ports)
>   File
> "/opt/v2.82/automation/trex_control_plane/interactive/trex/common/trex_api_annotators.py",
> line 51, in wrap2
>     ret = f(*args, **kwargs)
>   File
> "/opt/v2.82/automation/trex_control_plane/interactive/trex/stl/trex_stl_client.py",
> line 1467, in clear_stats
>     self._clear_stats_common(ports, clear_global, clear_xstats)
>   File
> "/opt/v2.82/automation/trex_control_plane/interactive/trex/common/trex_client.py",
> line 2840, in _clear_stats_common
>     raise TRexError(rc)
> trex.common.trex_exceptions.TRexError: *** [RPC] - Failed to get server
> response from tcp://127.0.0.1:4501


I have found one similar case on the github repository for trex, but the
solution was vendor-specific:
https://github.com/cisco-system-traffic-generator/trex-core/issues/147.
Have you ran into this issue before?

Thanks,
Brandon