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Miller" , Jakub Kicinski , Petr Machata Subject: [PATCH net-next 10/10] selftests: mlxsw: sch_red_ets: Test proper counter cleaning in ETS Date: Tue, 20 Apr 2021 16:53:48 +0200 Message-ID: <1f44a5666de7cb9da7102e4b585d732814d51a73.1618928119.git.petrm@nvidia.com> X-Mailer: git-send-email 2.26.3 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [172.20.145.6] X-ClientProxiedBy: HQMAIL107.nvidia.com (172.20.187.13) To HQMAIL107.nvidia.com (172.20.187.13) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: ed80904c-c083-4ddf-e174-08d9040c669c X-MS-TrafficTypeDiagnostic: BN9PR12MB5050: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4714; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 0UvBcvGRxpcXhRUKotFrLAvmr5WdNtTFKlIwst5m9N/Xrb2OJqwt8hxn5oe/9Fb4VkWxqKfLJYdntoFhnQsTjcvdFs/4PebNvadI0ZaWjslY8Hs2xnkCf1SGJs+jjLDoZ5Qy7Te1E5ItZfXMzNe4KS6AraAKrl0LXEXPzVNu8vJnJZ8dmoGLixd6CJZI9YIWH4iSE5t9qOl7M2f3DhQHLLPWtAWEm2am249U8lNGi6gOu/rj/NFn+9cG2hRwuFmg/mpiakXCjJvatHRh/GEyQ2JWMHaECoATfzhBVzlx9BFgacXrAQeuUkBhXkQb8qfmITR3hXvCRV3lM0v2ilqHIqcg0OkFWjdYAINd7QBrhwMYQidl0dIogAq2S9AcpYjk+njqpImsrf2gTSx1Y4AwQ3m2JLszYJ+uVHIMt3McAvorJNiOvbX4w9lQCNJYjI9hpBKYtRaSoYhRQqc7dv1pKRsllHlHk0SxwhEr3lbiOAw6h+AQFqUUgrCG9FwVG64eQ2x9Xd+TfkkbvNAlfEdpjjJJn4BM2nh50N4fXAbe7n7CSbgL10HxNn3S56q40Oeb/leIi8sLo5KZEC/n0nKrdtd6w+aiUlfpa8RVKH8FUwteVOzZkgRWxQXSQRcJ70+50Uxkf/xfSLUuGKsaW4mWdz7RZ3MpmQZo5uUtgzG0vRM= X-Forefront-Antispam-Report: CIP:216.228.112.34; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:schybrid03.nvidia.com; CAT:NONE; SFS:(4636009)(39860400002)(376002)(346002)(396003)(136003)(36840700001)(46966006)(2906002)(6666004)(36906005)(26005)(186003)(16526019)(316002)(54906003)(2616005)(47076005)(8676002)(8936002)(82310400003)(5660300002)(107886003)(70206006)(4326008)(70586007)(478600001)(356005)(6916009)(86362001)(7636003)(36860700001)(336012)(426003)(36756003)(82740400003); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Apr 2021 14:55:55.5412 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ed80904c-c083-4ddf-e174-08d9040c669c X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT024.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN9PR12MB5050 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org There was a bug introduced during the rework which cause non-zero backlog being stuck at ETS. Introduce a selftest that would have caught the issue earlier. Signed-off-by: Petr Machata Reviewed-by: Ido Schimmel --- tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh index 3f007c5f8361..f3ef3274f9b3 100755 --- a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh +++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh @@ -67,6 +67,13 @@ red_test() { install_qdisc + # Make sure that we get the non-zero value if there is any. + local cur=$(busywait 1100 until_counter_is "> 0" \ + qdisc_stats_get $swp3 10: .backlog) + (( cur == 0 )) + check_err $? "backlog of $cur observed on non-busy qdisc" + log_test "$QDISC backlog properly cleaned" + do_red_test 10 $BACKLOG1 do_red_test 11 $BACKLOG2