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Sun, 24 Aug 2025 01:40:33 -0700 From: Mark Bloch To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Tariq Toukan , Leon Romanovsky , "Saeed Mahameed" , , , Gal Pressman , Alexei Lazar , Mark Bloch Subject: [PATCH net 10/11] net/mlx5e: Update and set Xon/Xoff upon port speed set Date: Sun, 24 Aug 2025 11:39:43 +0300 Message-ID: <20250824083944.523858-11-mbloch@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250824083944.523858-1-mbloch@nvidia.com> References: <20250824083944.523858-1-mbloch@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CH2PEPF00000147:EE_|SN7PR12MB7107:EE_ X-MS-Office365-Filtering-Correlation-Id: 3f352d7b-73eb-45f5-550c-08dde2e9ee55 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|376014|36860700013|1800799024; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?v2CZyi7f1NE5ghoV5rhKiXwmpdgQk4yWY0fFiA3H22WsavLfb+fUOIiie69Q?= =?us-ascii?Q?aS+5jL5T4vPalAy6HdeYfuKt7WkL/M2FNyQKIHHlw9UbssM44lR+jofJ2JVO?= =?us-ascii?Q?Oq2OCkV27M8trbJhl/hce2WW+nR4MJjEDwh/U42GdHtydEyq+KUV78dxvexA?= =?us-ascii?Q?KQDXzwQACT6Dm7VHug0qGRCxP24JPWnSCEUHuOgExUBgxlmbonhGQ84xPWfZ?= =?us-ascii?Q?8OILxMpIrZwZHShZ2qSyEmN3L9oiTt45rFgoDqvlYAiWdM0mGMJtPbDwHl1w?= =?us-ascii?Q?l8V0yT4uOQSwm0DhvHUucd8sCpPj1Yz02ZlPwEjemqFdgUHE7GQiaZvBtJhc?= =?us-ascii?Q?2sPkxwxxETmzZilaiKB/MZAanz8xAd7jm4eUHWmOWCEn0vIurJC1g3zvK8wN?= =?us-ascii?Q?WanW6czorwuX3v6jTWSzNUghwRUzWr/VuXaoJfefbsjK3prbRa29bxcrr5xt?= =?us-ascii?Q?es3dKyx6brXRN1Suv34PvMT5MYcx+l1IzkwEQrdUQpKuKhICLn35G9+vr4JA?= =?us-ascii?Q?GzhuEP08KkffzU/fJO2BUJIERUeW2Gcbu/HYEhrFww3ISln1Hf45NKz71kEd?= =?us-ascii?Q?eL3kBkafUQ0oAKBZdyVUGJL+zjzNlSEARxsenHxS66sLWZZ0Qb4QaP6Vp8We?= =?us-ascii?Q?9BIgbq8mDtk/qGAVrGPCXRIv2pFnPjJTl3c+Y6K2x5AoNeUIbSyCMLU//WdM?= =?us-ascii?Q?pS9Ff+Qec2H9VlbYSKv3E5bXD1GnfPMwZTd+gxfLxA1RDndHT1pFuq/MSa73?= =?us-ascii?Q?YFm6zn6JVxAe9WjSYvGfbWTIU3Vfz/d7fxB/FyNFlvn+tObJuh3T2/SjFW/B?= =?us-ascii?Q?PPZTpRgEk14fnrIrbtbzAuwXk8KeIJ1tf6kLVkxd6BgegRxqLDXdGKZ0wRha?= =?us-ascii?Q?8v/3u0b135EqJ8ZDqez6tpmv5pize55eUY3Yqlj8lvSIh1xCE6UhZv4YprSW?= =?us-ascii?Q?aQFtToV0zgrN80+uF5vfskBzSRbutiitbL4htku4dGDl1M9elw9xiDmHgWKi?= =?us-ascii?Q?pLt4zuCajg1vZMs/SL4Jgprnvedbtv4xu6qgStwOZ8en1a2GgO1mBooUGyDJ?= =?us-ascii?Q?dXF+GO7ml6cE+1xBJr3WEoHcAcy8S/v7/+jXRw+bQKqAgxZih4U9jLsBwjGl?= =?us-ascii?Q?J1hAExCq3yr/jsjJf8OXZ30WXKeK3Tc6w9Z7afCBxvrtyXBJYNbhLxSWEiwC?= =?us-ascii?Q?5z2ci6NI8VnREg2BpPobZfKURSOQ43o1I1/4gd8u5GHaHFfGYQCF25n+zn86?= =?us-ascii?Q?kdDpfo8VGiijOJcK69yyjWjMDXr8qZdbO6uHzv5e/EOV3SK8CvaUQTTjf98f?= =?us-ascii?Q?gm1/R+SoI0uicXi+5l+pUD2RHyLgSsG4XjmDCa8b9ZQ0+G0Zpr8h6PQ942/Y?= =?us-ascii?Q?el2Shc/2ISZAFHPsM6YS09AQZc66f4j+n8vKMuwb7JU6Slo0vNUFcByi+LNA?= =?us-ascii?Q?D8gUignfDx9H8E7aQl/xwe6OSiQsW/Oyr3baZx3VJSVSDbSKVfbzwBE2SyxQ?= =?us-ascii?Q?C7VT0Fq7XF8LVZD3zLX4UIpigXmVLpZxnF/P?= X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(376014)(36860700013)(1800799024);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Aug 2025 08:40:50.8717 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3f352d7b-73eb-45f5-550c-08dde2e9ee55 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CH2PEPF00000147.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR12MB7107 Content-Type: text/plain; charset="utf-8" From: Alexei Lazar Xon/Xoff sizes are derived from calculations that include the port speed. These settings need to be updated and applied whenever the port speed is changed. The port speed is typically set after the physical link goes down and is negotiated as part of the link-up process between the two connected interfaces. Xon/Xoff parameters being updated at the point where the new negotiated speed is established. Fixes: 0696d60853d5 ("net/mlx5e: Receive buffer configuration") Signed-off-by: Alexei Lazar Reviewed-by: Tariq Toukan Signed-off-by: Mark Bloch --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/ne= t/ethernet/mellanox/mlx5/core/en_main.c index 15eded36b872..e680673ffb72 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -139,6 +139,8 @@ void mlx5e_update_carrier(struct mlx5e_priv *priv) if (up) { netdev_info(priv->netdev, "Link up\n"); netif_carrier_on(priv->netdev); + mlx5e_port_manual_buffer_config(priv, 0, priv->netdev->mtu, + NULL, NULL, NULL); } else { netdev_info(priv->netdev, "Link down\n"); netif_carrier_off(priv->netdev); --=20 2.34.1