From c547fe5f4a047953076a8cf1fa1063d5e8214e22 Mon Sep 17 00:00:00 2001 From: Huy Nguyen Date: Thu, 13 Jul 2017 13:45:11 -0500 Subject: [PATCH] net/mlx5e: Check for qos capability in dcbnl_initialize qos capability is the master capability bit that determines if the DCBX is supported for the PCI function. If this bit is off, driver cannot run any dcbx code. Fixes: ed4f8392ad2d ("net/mlx5e: ConnectX-4 firmware support for DCBX") Signed-off-by: Huy Nguyen Reviewed-by: Parav Pandit Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c index 2eb54d36e16ea..810b51029c7f5 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c @@ -754,6 +754,9 @@ void mlx5e_dcbnl_initialize(struct mlx5e_priv *priv) { struct mlx5e_dcbx *dcbx = &priv->dcbx; + if (!MLX5_CAP_GEN(priv->mdev, qos)) + return; + if (MLX5_CAP_GEN(priv->mdev, dcbx)) mlx5e_dcbnl_query_dcbx_mode(priv, &dcbx->mode); -- 2.39.5