netdev - Re: [PATCH net 1/4] selftests/tc-testing: Fix Error: Specified qdisc kind is unknown.

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Date: Mon, 12 Jun 2023 18:35:46 +0800
From: shaozhengchao <shaozhengchao@...wei.com>
To: Vlad Buslov <vladbu@...dia.com>, <pabeni@...hat.com>,
	<davem@...emloft.net>, <kuba@...nel.org>, <shuah@...nel.org>,
	<jhs@...atatu.com>, <xiyou.wangcong@...il.com>, <jiri@...nulli.us>
CC: <netdev@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<marcelo.leitner@...il.com>, <victor@...atatu.com>
Subject: Re: [PATCH net 1/4] selftests/tc-testing: Fix Error: Specified qdisc
 kind is unknown.



On 2023/6/12 15:57, Vlad Buslov wrote:
> All TEQL tests assume that sch_teql module is loaded. Load module in tdc.sh
> before running qdisc tests.
> 
> Fixes following example error when running tests via tdc.sh for all TEQL
> tests:
> 
>   # $ sudo ./tdc.py -d eth2 -e 84a0
>   #  -- ns/SubPlugin.__init__
>   # Test 84a0: Create TEQL with default setting
>   # exit: 2
>   # exit: 0
>   # Error: Specified qdisc kind is unknown.
>   #
>   # -----> teardown stage *** Could not execute: "$TC qdisc del dev $DUMMY handle 1: root"
>   #
>   # -----> teardown stage *** Error message: "Error: Invalid handle.
>   # "
>   # returncode 2; expected [0]
>   #
>   # -----> teardown stage *** Aborting test run.
>   #
>   # <_io.BufferedReader name=3> *** stdout ***
>   #
>   # <_io.BufferedReader name=5> *** stderr ***
>   # "-----> teardown stage" did not complete successfully
>   # Exception <class '__main__.PluginMgrTestFail'> ('teardown', 'Error: Specified qdisc kind is unknown.\n', '"-----> teardown stage" did not complete successfully') (caught in test_runner, running test 2 84a0 Create TEQL with default setting stage teardown)
>   # ---------------
>   # traceback
>   #   File "/images/src/linux/tools/testing/selftests/tc-testing/./tdc.py", line 495, in test_runner
>   #     res = run_one_test(pm, args, index, tidx)
>   #   File "/images/src/linux/tools/testing/selftests/tc-testing/./tdc.py", line 434, in run_one_test
>   #     prepare_env(args, pm, 'teardown', '-----> teardown stage', tidx['teardown'], procout)
>   #   File "/images/src/linux/tools/testing/selftests/tc-testing/./tdc.py", line 245, in prepare_env
>   #     raise PluginMgrTestFail(
>   # ---------------
>   # accumulated output for this test:
>   # Error: Specified qdisc kind is unknown.
>   #
>   # ---------------
>   #
>   # All test results:
>   #
>   # 1..1
>   # ok 1 84a0 - Create TEQL with default setting # skipped - "-----> teardown stage" did not complete successfully
> 
> Fixes: cc62fbe114c9 ("selftests/tc-testing: add selftests for teql qdisc")
> Signed-off-by: Vlad Buslov <vladbu@...dia.com>
> ---
>   tools/testing/selftests/tc-testing/tdc.sh | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/tools/testing/selftests/tc-testing/tdc.sh b/tools/testing/selftests/tc-testing/tdc.sh
> index afb0cd86fa3d..eb357bd7923c 100755
> --- a/tools/testing/selftests/tc-testing/tdc.sh
> +++ b/tools/testing/selftests/tc-testing/tdc.sh
> @@ -2,5 +2,6 @@
>   # SPDX-License-Identifier: GPL-2.0
>   
>   modprobe netdevsim
> +modprobe sch_teql
I think not only the sch_teql module needs to be imported, but all test
modules need to be imported before testing. Modifying the config file
looks more appropriate.
>   ./tdc.py -c actions --nobuildebpf
>   ./tdc.py -c qdisc