[dpdk-ci] New 100G Broadcom NIC Ubuntu

Brandon Lo blo at iol.unh.edu
Tue Aug 11 19:45:28 CEST 2020


Hi Ajit,

I'm just checking in; have you heard of any updates on this issue?

Thanks,
Brandon

On Tue, Aug 4, 2020 at 1:42 PM Brandon Lo <blo at iol.unh.edu> wrote:

> Hi Ajit,
>
> Yes, I believe the issue is coming from the trex/tester system with the
> 100G NIC.
> I'm not sure what causes this issue; if I run trex using the command "cd
> /opt/v2.82;./t-rex-64 -i --cfg /etc/trex_cfg_100g.yaml -c 7", which is the
> same command used in DTS, it seems to launch without failing.
>
> If you want to replicate it, here are the steps that I ran:
>
>    1. (on io) cd /opt/dts
>    2. export DTS_CFG_FOLDER='conf_100g'
>       - conf_100g has the new configuration files to use the new PCI id
>       and pktgen config file
>    3. ./dts -s
>
>
> Thanks for your help,
> Brandon
>
> On Tue, Aug 4, 2020 at 12:38 PM Ajit Khaparde <ajit.khaparde at broadcom.com>
> wrote:
>
>> Hi Brandon,
>> No, I haven't seen or heard this before.
>> But I will try to have someone run it again.
>>
>> Just to make sure -
>> You are running trex on the 100G NIC and the problem is encountered on
>> that setup?
>> Or is it the system that is running testpmd where you are running into
>> the issue?
>>
>> Thanks
>> Ajit
>>
>> On Tue, Aug 4, 2020 at 9:16 AM Brandon Lo <blo at iol.unh.edu> wrote:
>>
>>> 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
>>>
>>
>
> --
>
> Brandon Lo
>
> UNH InterOperability Laboratory
>
> 21 Madbury Rd, Suite 100, Durham, NH 03824
>
> blo at iol.unh.edu
>
> www.iol.unh.edu
>


-- 

Brandon Lo

UNH InterOperability Laboratory

21 Madbury Rd, Suite 100, Durham, NH 03824

blo at iol.unh.edu

www.iol.unh.edu
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