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From: Tariq Toukan <tariqt@nvidia.com>
To: Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@kernel.org>,
	Jakub Kicinski <kuba@kernel.org>, <netdev@vger.kernel.org>,
	Paolo Abeni <pabeni@redhat.com>
Cc: Alexei Lazar <alazar@nvidia.com>,
	Carolina Jubran <cjubran@nvidia.com>,
	Dragos Tatulea <dtatulea@nvidia.com>,
	Gal Pressman <gal@nvidia.com>,
	"Leon Romanovsky" <leon@kernel.org>,
	open list <linux-kernel@vger.kernel.org>,
	<linux-rdma@vger.kernel.org>, Mark Bloch <mbloch@nvidia.com>,
	Saeed Mahameed <saeedm@nvidia.com>,
	Tariq Toukan <tariqt@nvidia.com>
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	[thread overview]
Message-ID: <20261011112900.802150-3-tariqt@nvidia.com> (raw)
In-Reply-To: <20261011112900.802150-1-tariqt@nvidia.com>

From: Alexei Lazar <alazar@nvidia.com>

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 <alazar@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
---
 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


      parent reply	other threads:[~2026-10-11 11:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-11 11:28 [PATCH net-next 0/2] net/mlx5e: Align setdcbx with DCBX capability flags Tariq Toukan
2026-10-11 11:28 ` [PATCH net-next 1/2] net/mlx5e: Select DCBX HOST/AUTO from capability flags in setdcbx Tariq Toukan
2026-10-11 11:29 ` Tariq Toukan [this message]

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