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Mon, 12 Jan 2026 01:17:32 -0800 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Jian Shen , Salil Mehta , Jijie Shao , Saeed Mahameed , "Tariq Toukan" , Mark Bloch , Leon Romanovsky , , , , Gal Pressman , Moshe Shemesh , Shahar Shitrit , Yael Chemla , Jamal Hadi Salim Subject: [PATCH net-next V2 1/3] net: Introduce netif_xmit_timeout_ms() helper Date: Mon, 12 Jan 2026 11:16:21 +0200 Message-ID: <1768209383-1546791-2-git-send-email-tariqt@nvidia.com> X-Mailer: git-send-email 2.8.0 In-Reply-To: <1768209383-1546791-1-git-send-email-tariqt@nvidia.com> References: <1768209383-1546791-1-git-send-email-tariqt@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN2PEPF000044A7:EE_|CY1PR12MB9699:EE_ X-MS-Office365-Filtering-Correlation-Id: 1f303eb8-0ac5-46b2-9038-08de51bb7437 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|36860700013|7416014|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?VH73Uml378JtJtaioMUl+dnOQEqk59esEwxayxdaGnYF3JiK+k+iXCZHrcc6?= =?us-ascii?Q?U1ybth7LB4PNg8OGu2NfF6p59oNoZX6luhzaiNhGEJn9XJeLxMRQaAtfxA9k?= =?us-ascii?Q?eOMfcYBS5Y2VevgpjXfv3DZD8P9K9unQYob+f1AnwOUz8Nv7Y/EA/yksWccN?= =?us-ascii?Q?CTUjac3M6czzersZHcl4cCT6Z9xSVPxJRpXd5wn+OusPudN2ablQxjCTJZmQ?= =?us-ascii?Q?0NI9nqA1tWMV+yAWHilEVNObsR+NqIiK4O9zQd2VEuialXiwpdKmAT6y0TmT?= =?us-ascii?Q?VxGvzqhk8I92vsQt4s2kNoXizao3XCIjLHh5V1AhCDULqEviRJcwkZhQi0Vh?= =?us-ascii?Q?nGrtyhmLTpcD0X/p7vop5no4T9K4KPTpxNfiwK0X1wASGISE01U/G6jNubzq?= =?us-ascii?Q?8BTCgyj+PM5/lDzPhQyG6wN3yjgMxNgh+2KjQPoFIiWfiWL0AIcQxLlJqAFD?= =?us-ascii?Q?Li7FbGWkHq2OTl/fsa9h+lRkE8Frf7CTdmnPjYs90RfivGjh2jz5LU/BwmAF?= =?us-ascii?Q?c8jd3HQyvSb8UvaJoRYNczecsJSHELxI0/kXRHsjMBXqyY0htpfa/gVgaihy?= =?us-ascii?Q?aWRcnDEdMDCxEQVdehY1jhZGbObm1WUwwjCmsQckTFk7Y+f7A6fnCIHkgjpY?= =?us-ascii?Q?WvfFHrMXxSIenKA+5xPVQ4a4DgVKuqnefQKDmo3xkylwmJ+eVYdE7Pi7TcJH?= =?us-ascii?Q?bKInzwfvOpMsSS7ADnLkkdfu1K2p2hXW8E224FQDJqudJ++bHiUU2iVl0DxN?= =?us-ascii?Q?0VRN+jbF5k+NIOsxV+pMEckf3rHel14zfhwYIjm/Zq4WbCzVYjkpWPJuRlGA?= =?us-ascii?Q?EAcO+HNg6M7mNIOUuZai205C/YnchUDeMrjyrMwPGMtnuPCBJMQi+cLsdo/g?= =?us-ascii?Q?lyeistCzDzljUavALrJQnRtkgnLo1LXHk2ujDgmfTs3o3SkrKK2HLZKBd6cA?= =?us-ascii?Q?7glb+mc0MmSVOosjxLBE0zGSpV/UwU1ebrpGTUIAK6jdECkDRQ4RnGsX14V0?= =?us-ascii?Q?3PVevrPkjJ5VrpcLDjCUvye+x2empSJn7Q25UQ5DC/oePtbRMOCWk5DV3TF2?= =?us-ascii?Q?WErF33ctbpUUbTySsPxVYuntq5QPhm0jfagrXiX6D4nDwmQLKTkd5LmCkcrv?= =?us-ascii?Q?jv8yX4cIbJeFU6pXIF05XSvtSaj9imIMrRJUsGuBlfj+x0jK/PG0S/nkczuA?= =?us-ascii?Q?kw5R5goGdKIFnYCf1viq7iqdoRj35rKDzslIAI63aItr0f0T6BfffqKB9OHX?= =?us-ascii?Q?vdFYzOHr5+3F2VFlBR2EGwhMpEgbonDxU3KBoJpJBZV2oc4eHcZjSA/PnIwD?= =?us-ascii?Q?1vewZh884EdMO4t7a2b4IemkTSRoLd9sA/HqTzqE80bFEKLskttcIvvkHrJk?= =?us-ascii?Q?YiWW1X8V4A75xPjDhjAk7KpGWJ1wSpB0x21haxg1LQXInO6jNuDYqzukv7X2?= =?us-ascii?Q?UE3ngJx8FiK6/GWujqs8hMTsWIelnfIwpv5uc3qEJusOmWngtK8YL2fvwoYb?= =?us-ascii?Q?OB00crHIiIet6zxGPNARMTY63jMjAC+tZKWr+iOQXzxWnUHDGCpGLI0vnQt3?= =?us-ascii?Q?Gj0HVsOvsuRXJtbBorc=3D?= X-Forefront-Antispam-Report: CIP:216.228.117.160;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge1.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(376014)(36860700013)(7416014)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2026 09:17:48.1847 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1f303eb8-0ac5-46b2-9038-08de51bb7437 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF000044A7.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY1PR12MB9699 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Shahar Shitrit Introduce a new helper function netif_xmit_timeout_ms() to check if a TX queue is stopped and has timed out and report the timeout duration. This makes the timeout logic reusable, and will be used in several places in subsequent patches. Signed-off-by: Shahar Shitrit Reviewed-by: Yael Chemla Signed-off-by: Tariq Toukan --- include/net/netdev_queues.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/net/netdev_queues.h b/include/net/netdev_queues.h index cd00e0406cf4..b55d3b9cb9c2 100644 --- a/include/net/netdev_queues.h +++ b/include/net/netdev_queues.h @@ -310,6 +310,17 @@ static inline void netif_subqueue_sent(const struct ne= t_device *dev, netdev_tx_sent_queue(txq, bytes); } =20 +static inline unsigned int netif_xmit_timeout_ms(struct netdev_queue *txq) +{ + unsigned long trans_start =3D READ_ONCE(txq->trans_start); + + if (netif_xmit_stopped(txq) && + time_after(jiffies, trans_start + txq->dev->watchdog_timeo)) + return jiffies_to_msecs(jiffies - trans_start); + + return 0; +} + #define netif_subqueue_maybe_stop(dev, idx, get_desc, stop_thrs, start_thr= s) \ ({ \ struct netdev_queue *_txq; \ --=20 2.31.1