Re: [dpdk-ci] [DPDKLAB] 25G Broadcom NIC in Arm hardware

[Ajit Khaparde <ajit.khaparde@broadcom.com>]

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Does the same NIC work on x86?
Also do you see link before you start the trex? I am trying to see if the
port failed to successfully come up
or if there is a problem with the link. Can you check and tell?

Thanks
Ajit

On Wed, Jan 13, 2021 at 4:20 PM David Liu <dliu@iol.unh.edu> wrote:

> Hi Ajit,
>
> Thank you for helping out.
>
> We have it working on the x86, but not the Arm.
>
>
> Thanks,
> David
>
> On Wed, Jan 13, 2021 at 5:34 PM Ajit Khaparde <ajit.khaparde@broadcom.com>
> wrote:
>
>> Hi David,
>> I will take a look.
>> Do you see similar issues on x86? I am asking because
>> even I would start with that to create a baseline and then
>> attempt on ARM.
>>
>> Thanks
>> Ajit
>>
>> On Wed, Jan 13, 2021 at 12:08 PM David Liu <dliu@iol.unh.edu> wrote:
>>
>>> Hi Ajit,
>>>
>>> We have a 25G Broadcom NIC that is installed on an Arm machine.
>>> And I am running into a problem when I try to run nic_single_core_perf
>>> on the NIC.
>>> Currently, we are using: Trex v2.86 and dts from
>>> http://git.dpdk.org/tools/dts/
>>> All the NICs are up and running when testing.
>>>
>>> The problem is an error when I try to run the test case inside
>>> the nic_single_core_perf:
>>>
>>> TestNicSingleCorePerf: Test running at parameters: framesize: 64,
>>>> rxd/txd: 512
>>>>                dut.172.18.0.41:
>>>> x86_64-native-linuxapp-gcc/app/dpdk-testpmd -l 32,33 -n 4
>>>>  --file-prefix=dpdk_15311_20210113190237   -a 0000:93:00.0 -a 0000:93:00.1
>>>> -- -i --portmask=0x3 --txd=512 --rxd=512 --nb-cores=1
>>>>                dut.172.18.0.41: start
>>>>          TestNicSingleCorePerf: Test Case test_perf_nic_single_core
>>>> Result ERROR: Traceback (most recent call last):
>>>>   File "/opt/dts/framework/test_case.py", line 319, in
>>>> _execute_test_case
>>>>     case_obj()
>>>>   File "tests/TestSuite_nic_single_core_perf.py", line 196, in
>>>> test_perf_nic_single_core
>>>>     self.perf_test(self.nb_ports)
>>>>   File "tests/TestSuite_nic_single_core_perf.py", line 270, 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 778, in
>>>> _prepare_transmission
>>>>     self._conn.reset(ports=self._ports)
>>>>   File
>>>> "/opt/trex/v2.86/automation/trex_control_plane/interactive/trex/common/trex_api_annotators.py",
>>>> line 51, in wrap2
>>>>     ret = f(*args, **kwargs)
>>>>   File
>>>> "/opt/trex/v2.86/automation/trex_control_plane/interactive/trex/stl/trex_stl_client.py",
>>>> line 339, in reset
>>>>     self.clear_stats(ports)
>>>>   File
>>>> "/opt/trex/v2.86/automation/trex_control_plane/interactive/trex/common/trex_api_annotators.py",
>>>> line 51, in wrap2
>>>>     ret = f(*args, **kwargs)
>>>>   File
>>>> "/opt/trex/v2.86/automation/trex_control_plane/interactive/trex/stl/trex_stl_client.py",
>>>> line 1492, in clear_stats
>>>>     self._clear_stats_common(ports, clear_global, clear_xstats)
>>>>   File
>>>> "/opt/trex/v2.86/automation/trex_control_plane/interactive/trex/common/trex_client.py",
>>>> line 2876, in _clear_stats_common
>>>>     raise TRexError(rc)
>>>> trex.common.trex_exceptions.TRexError: *** [RPC] - Failed to get server
>>>> response from tcp://172.18.0.40:4501
>>>
>>>
>>> I also try to run TRex in stateless mode with./t-rex-64 -i --cfg
>>> /etc/trex_cfg.yaml and  connect with ./trex-console
>>>
>>> Then start sending traffic with command
>>>
>>>> trex>start -f stl/imix.py
>>>
>>>
>>> But this will cause an error to turn off Trex.
>>>
>>> trex>
>>>> 2021-01-13 19:56:21 - [server][warning]  - Server has been shutdown -
>>>> cause: 'WATCHDOG: task 'Trex DP core 1' has not responded for more than
>>>> 1.00135 seconds - timeout is 1 seconds
>>>> *** traceback follows ***
>>>> 1       0x561be173cf5a ./_t-rex-64(+0x19af5a) [0x561be173cf5a]
>>>> 2       0x7feea3ac0980 /lib/x86_64-linux-gnu/libpthread.so.0(+0x12980)
>>>> [0x7feea3ac0980]
>>>> 3       0x561be1a05a2a rte_delay_us_block + 106
>>>> 4       0x561be16ce874 CCoreEthIF::send_burst(CCorePerPort*, unsigned
>>>> short, CVirtualIFPerSideStats*) + 3220
>>>> 5       0x561be16abf57 CCoreEthIF::flush_tx_queue() + 31
>>>> 6       0x561be171e3d9
>>>> CNodeGenerator::handle_maintenance(CFlowGenListPerThread*) + 265
>>>> 7       0x561be171f7ec CNodeGenerator::handle_flow_sync(CGenNode*,
>>>> CFlowGenListPerThread*, bool&) + 92
>>>> 8       0x561be171fc98 CNodeGenerator::handle_slow_messages(unsigned
>>>> char, CGenNode*, CFlowGenListPerThread*, bool) + 184
>>>> 9       0x561be16cb5f1 int CNodeGenerator::flush_file_realtime<23,
>>>> false>(double, double, CFlowGenListPerThread*, double&) + 881
>>>> 10      0x561be1905212 TrexStatelessDpCore::start_scheduler() + 226
>>>> 11      0x561be1883ae9 TrexDpCore::start() + 89
>>>> 12      0x561be1714113
>>>> CFlowGenListPerThread::start(std::__cxx11::basic_string<char,
>>>> std::char_traits<char>, std::allocator<char> >&, CPreviewMode&) + 115
>>>> 13      0x561be16af8dd CGlobalTRex::run_in_core(unsigned char) + 487
>>>> 14      0x561be16d11ad ./_t-rex-64(+0x12f1ad) [0x561be16d11ad]
>>>> 15      0x561be1a1dfaa eal_thread_loop + 426
>>>> 16      0x7feea3ab56db /lib/x86_64-linux-gnu/libpthread.so.0(+0x76db)
>>>> [0x7feea3ab56db]
>>>> 17      0x7feea2a8571f clone + 63
>>>>
>>>> *** addr2line information follows ***
>>>> ??:0
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>>>> '
>>>
>>>
>>> I believe if everything is working, this should not turn off trex but
>>> please correct me if I am wrong.
>>> I wonder if you have any suggestion of how I can approach this issue?
>>>
>>> Best,
>>> David
>>>
>>>
>>>

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