netdev - [PATCH net-next V2 1/6] net/mlx5e: Add qos capability check

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Message-Id: <1473177852-10711-2-git-send-email-saeedm@mellanox.com>
Date:   Tue,  6 Sep 2016 19:04:07 +0300
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Huy Nguyen <huyn@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [PATCH net-next V2 1/6] net/mlx5e: Add qos capability check

From: Huy Nguyen <huyn@...lanox.com>

Make sure firmware supports qos before exposing the dcb api.

Signed-off-by: Huy Nguyen <huyn@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 03586ee..3b05810 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -3111,7 +3111,8 @@ static void mlx5e_build_nic_netdev(struct net_device *netdev)
 	if (MLX5_CAP_GEN(mdev, vport_group_manager)) {
 		netdev->netdev_ops = &mlx5e_netdev_ops_sriov;
 #ifdef CONFIG_MLX5_CORE_EN_DCB
-		netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
+		if (MLX5_CAP_GEN(mdev, qos))
+			netdev->dcbnl_ops = &mlx5e_dcbnl_ops;
 #endif
 	} else {
 		netdev->netdev_ops = &mlx5e_netdev_ops_basic;
-- 
2.7.4