netdev - Re: [PATCH net 2/2] selftests: tc-testing: add tests for qfq mtu sanity check

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Message-ID: <971126e3-d2a1-cce3-da0b-da3531434ee9@huawei.com>
Date: Tue, 4 Jul 2023 20:17:54 +0800
From: shaozhengchao <shaozhengchao@...wei.com>
To: Pedro Tammela <pctammela@...atatu.com>, <netdev@...r.kernel.org>
CC: <jhs@...atatu.com>, <xiyou.wangcong@...il.com>, <jiri@...nulli.us>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <shuah@...nel.org>, <victor@...atatu.com>,
	<simon.horman@...igine.com>
Subject: Re: [PATCH net 2/2] selftests: tc-testing: add tests for qfq mtu
 sanity check



On 2023/7/3 23:10, Pedro Tammela wrote:
> QFQ only supports a certain bound of MTU size so make sure
> we check for this requirement in the tests.
> 
> Signed-off-by: Pedro Tammela <pctammela@...atatu.com>
> ---
>   .../tc-testing/tc-tests/qdiscs/qfq.json       | 48 +++++++++++++++++++
>   1 file changed, 48 insertions(+)
> 
> diff --git a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/qfq.json b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/qfq.json
> index 147899a868d3..965da7622dac 100644
> --- a/tools/testing/selftests/tc-testing/tc-tests/qdiscs/qfq.json
> +++ b/tools/testing/selftests/tc-testing/tc-tests/qdiscs/qfq.json
> @@ -213,5 +213,53 @@
>               "$TC qdisc del dev $DUMMY handle 1: root",
>               "$IP link del dev $DUMMY type dummy"
>           ]
> +    },
> +    {
> +        "id": "85ee",
> +        "name": "QFQ with big MTU",
> +        "category": [
> +            "qdisc",
> +            "qfq"
> +        ],
> +        "plugins": {
> +            "requires": "nsPlugin"
> +        },
> +        "setup": [
> +            "$IP link add dev $DUMMY type dummy || /bin/true",
> +            "$IP link set dev $DUMMY mtu 2147483647 || /bin/true",
> +            "$TC qdisc add dev $DUMMY handle 1: root qfq"
> +        ],
> +        "cmdUnderTest": "$TC class add dev $DUMMY parent 1: classid 1:1 qfq weight 100",
> +        "expExitCode": "2",
> +        "verifyCmd": "$TC class show dev $DUMMY",
> +        "matchPattern": "class qfq 1:",
> +        "matchCount": "0",
> +        "teardown": [
> +            "$IP link del dev $DUMMY type dummy"
> +        ]
> +    },
> +    {
> +        "id": "ddfa",
> +        "name": "QFQ with small MTU",
> +        "category": [
> +            "qdisc",
> +            "qfq"
> +        ],
> +        "plugins": {
> +            "requires": "nsPlugin"
> +        },
> +        "setup": [
> +            "$IP link add dev $DUMMY type dummy || /bin/true",
> +            "$IP link set dev $DUMMY mtu 256 || /bin/true",
> +            "$TC qdisc add dev $DUMMY handle 1: root qfq"
> +        ],
> +        "cmdUnderTest": "$TC class add dev $DUMMY parent 1: classid 1:1 qfq weight 100",
> +        "expExitCode": "2",
> +        "verifyCmd": "$TC class show dev $DUMMY",
> +        "matchPattern": "class qfq 1:",
> +        "matchCount": "0",
> +        "teardown": [
> +            "$IP link del dev $DUMMY type dummy"
> +        ]
>       }
>   ]

Tested-by: Zhengchao Shao <shaozhengchao@...wei.com>