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Miller" , Eric Dumazet , Jakub Kicinski , , Paolo Abeni CC: Alexei Lazar , Carolina Jubran , Dragos Tatulea , Gal Pressman , "Leon Romanovsky" , open list , , Mark Bloch , Saeed Mahameed , Tariq Toukan Subject: [PATCH net-next 2/2] net/mlx5e: Add DCB_CAP_DCBX_LLD_MANAGED support in setdcbx Date: Sun, 11 Oct 2026 14:29:00 +0300 Message-ID: <20261011112900.802150-3-tariqt@nvidia.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20261011112900.802150-1-tariqt@nvidia.com> References: <20261011112900.802150-1-tariqt@nvidia.com> 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: DM3PEPF000265BF:EE_|DSVPR12MB999149:EE_ X-MS-Office365-Filtering-Correlation-Id: 41435df2-06a2-4330-e4f8-08df278aeb62 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|82310400026|36860700016|23010399003|56012099006|11063799006|261009223027099003|10067099003|18002099003|22082099003; X-Microsoft-Antispam-Message-Info: F8NN4usqNq1IX8rWuqfMTYFkYj4+yN9T9324fFjGELzYRTWdlpnFITYaoljFWPsP/M4z4IJNW8JwDIefOeS/sYR1n/LqW7ZYGb8EtY4BMdVBh9Lrs0o3WIg80+H0y9jEbFJ+6MTIea6w5wzSknsMGLQ7e2f/QsGoKOJXbyRji532wG9jwVc9HIeG5Nshp5zATVgOcOmzde8o1GOB6SKTM5J9iRNfDzioKlIde/lJ3XD3BPE5eQz9rQl7uu43HR/gACmf4Sifpv/xdtNEJ92gT881Dd2ihuxpzx4I3uXXpVS015KZwLJtOeSe9/hSjdOhZtRJx3uT9lK93phvOuS7z2Ganly+PZ7xVQ9zFeR7bmmyrjBsy6SsRi1KoJnMzHcwPAv1ZhOLGvG3OUXOpV97sOVw7Jhc7i5M4LlmHnhtwy1bLknroTGPbibNmspiS4IK2wRW2o/Lfy1pm51qAWq4DmZbgTcm9Q3JrO5FGTu3BRJs7EaeXcov3ZmeuWWqguCH8x+zLXf90WEJY82snz8qMDb8juCDTJW6uCIm29XqXhwcqBcVW/HH/2TiVHBNPAaYkDCQnSvuoqxcYIaaa1pMcaTN2lcZPR/uqLyg8svFsRSY1zrRw2RSpoA83IyJUV06uWryQm5hcKnmgDjmkEKnWum+gLMVsNkDNOL4DrTOqojinatOYgoRnumwoqIwOQ6TxFOrGRP7ATkgdG+YWnZEvQ== 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)(376014)(1800799024)(82310400026)(36860700016)(23010399003)(56012099006)(11063799006)(261009223027099003)(10067099003)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: TgG88e9Hmxdf8LrUTDy5xl6xBpmBQd5CscxY3FKIgPjY9kIhI1vA5uTu9HdgFym8M6GXv/3ZHV5O9w4bUoAZSBaWBb9PGBAtsc3t/i0oWW0wvp7kPmSL+mmxjR6mXS8s37VRe/F/lFZoHHHFM3fFReXhRWs2ktphX7MuIYNhXUz4h4oFbIG4teizELwC5yrVvoHw+z4iz9spjsc1uBnvm3VH/IBtq9n4RiTYVkaCPENu0h0Zgp0vGMZqYHFe0t0R+AD6XytxyI9ODQCrOxcWAyA1jsvsHHIZL3Ol/6CTrMevLMVsC6IJ+/EHnr8LChBqJDQIEtEofJpE0LGJxuteL94IzqFixZoj3n842BHwxVVRxAgVHrMt1UVMIpp6CP0Kovz+YsBfCAf1uFLiOhGzj6Dt72sbPmFMdqIZysW+L5F33nS1Cr1dEXLzlt0kedEd X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Oct 2026 11:29:31.6644 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 41435df2-06a2-4330-e4f8-08df278aeb62 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: DM3PEPF000265BF.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DSVPR12MB999149 From: Alexei Lazar Add support for DCB_CAP_DCBX_LLD_MANAGED, which indicates that DCBX negotiation is performed by the firmware/LLD agent rather than the host. When DCB_CAP_DCBX_LLD_MANAGED is requested, switch to firmware-controlled DCBX mode. Signed-off-by: Alexei Lazar Reviewed-by: Dragos Tatulea Reviewed-by: Carolina Jubran Signed-off-by: Tariq Toukan --- drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c index 4eef929f5ae9..68deedb6f82e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c @@ -439,9 +439,6 @@ static u8 mlx5e_dcbnl_setdcbx(struct net_device *dev, u8 mode) struct mlx5e_dcbx *dcbx = &priv->dcbx; enum mlx5_dcbx_oper_mode target_mode; - if (mode & DCB_CAP_DCBX_LLD_MANAGED) - return 1; - if (!MLX5_CAP_GEN(priv->mdev, dcbx)) return !new_is_host; -- 2.44.0