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From: Saeed Mahameed <saeedm@mellanox.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, Huy Nguyen <huyn@mellanox.com>,
	Saeed Mahameed <saeedm@mellanox.com>
Subject: [net 01/11] net/mlx5e: Check for qos capability in dcbnl_initialize
Date: Thu, 31 Aug 2017 01:21:00 +0300	[thread overview]
Message-ID: <20170830222110.15737-2-saeedm@mellanox.com> (raw)
In-Reply-To: <20170830222110.15737-1-saeedm@mellanox.com>

From: Huy Nguyen <huyn@mellanox.com>

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: e207b7e99176 ("net/mlx5e: ConnectX-4 firmware support for DCBX")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
 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 2eb54d36e16e..810b51029c7f 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);
 
-- 
2.13.0

  reply	other threads:[~2017-08-30 22:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-30 22:20 [pull request][net 00/11] Mellanox, mlx5 fixes 2017-08-30 Saeed Mahameed
2017-08-30 22:21 ` Saeed Mahameed [this message]
2017-08-30 22:21 ` [net 02/11] net/mlx5e: Fix DCB_CAP_ATTR_DCBX capability for DCBNL getcap Saeed Mahameed
2017-08-30 22:21 ` [net 03/11] net/mlx5: Fix arm SRQ command for ISSI version 0 Saeed Mahameed
2017-08-30 22:21 ` [net 04/11] net/mlx5: Skip mlx5_unload_one if mlx5_load_one fails Saeed Mahameed
2017-08-30 22:21 ` [net 05/11] net/mlx5: Remove the flag MLX5_INTERFACE_STATE_SHUTDOWN Saeed Mahameed
2017-08-30 22:21 ` [net 06/11] net/mlx5e: Fix dangling page pointer on DMA mapping error Saeed Mahameed
2017-08-30 22:21 ` [net 07/11] net/mlx5e: Don't override user RSS upon set channels Saeed Mahameed
2017-08-30 22:21 ` [net 08/11] net/mlx5e: Properly resolve TC offloaded ipv6 vxlan tunnel source address Saeed Mahameed
2017-08-30 22:21 ` [net 09/11] net/mlx5: E-Switch, Unload the representors in the correct order Saeed Mahameed
2017-08-30 22:21 ` [net 10/11] net/mlx5e: Fix inline header size for small packets Saeed Mahameed
2017-08-30 22:21 ` [net 11/11] net/mlx5e: Fix CQ moderation mode not set properly Saeed Mahameed
2017-08-31  0:06 ` [pull request][net 00/11] Mellanox, mlx5 fixes 2017-08-30 David Miller

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