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Wed, 22 Jul 2026 05:38:50 -0700 From: Gal Pressman To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , CC: Shuah Khan , Andy Gospodarek , Pavan Chebbi , Michael Chan , , Gal Pressman , Nimrod Oren Subject: [PATCH net] selftests: drv-net: rss_ctx: fix persist tests skip on IPv6 setups Date: Wed, 22 Jul 2026 15:38:44 +0300 Message-ID: <20260722123844.1673299-1-gal@nvidia.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM2PEPF00003FC2:EE_|MN0PR12MB6054:EE_ X-MS-Office365-Filtering-Correlation-Id: adee7de1-c4e1-4c77-c4f3-08dee7ee352f X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|23010399003|1800799024|36860700016|7416014|376014|6133799003|56012099006|5023799004|11063799006|10067099003|18002099003; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(23010399003)(1800799024)(36860700016)(7416014)(376014)(6133799003)(56012099006)(5023799004)(11063799006)(10067099003)(18002099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 3DMxfia1/K2yprgfP6LewX/slfJxbpefU0EIN50A2s5DT9uN6iKYYOW5P4au/gPd4FrNtdM2KtiYTKwue3y4I0DTuLGXi1fgN+a9/Qc/g7DShLa0GaNA6ruqdR2rOxxFumZNwT4atXJ8nEU8UoDtk3ELG3OiU8r5gF8p96JenbW6ps80qtD+NfMgnipshc9YY6M5E3wApmlqE0dDzZNmqDy9aA67J9W56WYBXD3Z1xI/6c2e7lbBsC2vYz8yilERXz/AMDyDo2nHmXHN6wmtr8SBh5EFPi5MxRBDdHkl2FPLRMAps2Sxc07NcGh0JGamDrPvJ0BYZhnaT2/SEJ7cAw5sS+a51LxMBsz9uYUPsY2R+58BaNO2WL7XB+HumG2IfVz31y8DWMOODnIqELWiumfzrCVV0Fy03+mER7bWnRgMVM6pJHdCj1yBBQqQRPST X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jul 2026 12:39:01.2442 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: adee7de1-c4e1-4c77-c4f3-08dee7ee352f X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM2PEPF00003FC2.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB6054 test_rss_context_persist_ifupdown() cycles the interface down/up and pings the remote host before verifying the contexts survived. When using IPv6, the down operation deletes the configured IPv6 address (default keep_addr_on_down=0) and nothing restores it after the up, so all ping attempts fail and both tests skip with "Cannot reach remote host after interface up". Set the interface's keep_addr_on_down sysctl around the flap to retain the address. Fixes: ce5a0f4612db ("selftests: drv-net: rss_ctx: test RSS contexts persist after ifdown/up") Reviewed-by: Nimrod Oren Signed-off-by: Gal Pressman --- Disclaimer: I'm not sure if this should go to net or net-next. --- tools/testing/selftests/drivers/net/hw/rss_ctx.py | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/testing/selftests/drivers/net/hw/rss_ctx.py b/tools/testing/selftests/drivers/net/hw/rss_ctx.py index f36f76d6ca59..eeea2fb292ac 100755 --- a/tools/testing/selftests/drivers/net/hw/rss_ctx.py +++ b/tools/testing/selftests/drivers/net/hw/rss_ctx.py @@ -938,6 +938,13 @@ def test_rss_context_persist_ifupdown(cfg, pre_down=False): ethtool(f"-X {cfg.ifname} equal 2") defer(ethtool, f"-X {cfg.ifname} default") + # IPv6 addresses are deleted on admin down and not restored on up + knob = f"net/ipv6/conf/{cfg.ifname}/keep_addr_on_down" + probe = cmd(f"sysctl -n {knob}", fail=False) + if probe.ret == 0: + cmd(f"sysctl -qw {knob}=1") + defer(cmd, f"sysctl -qw {knob}={probe.stdout.strip()}") + ifup = defer(ip, f"link set dev {cfg.ifname} up") if pre_down: ip(f"link set dev {cfg.ifname} down") -- 2.54.0