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Commit 8e1d162d authored by Feras Daoud's avatar Feras Daoud Committed by Saeed Mahameed
Browse files

net/mlx5e: IPoIB, Set the netdevice sw mtu in ipoib enhanced flow 



After introduction of the cited commit, mlx5e_build_nic_params
receives the netdevice mtu in order to set the sw_mtu of mlx5e_params.
For enhanced IPoIB, the netdevice mtu is not set in this stage,
therefore, the initial sw_mtu equals zero. As a result, the hw_mtu
of the receive queue will be calculated incorrectly causing traffic
issues.

To fix this issue, query for port mtu before building the nic params.

Fixes: 472a1e44 ("net/mlx5e: Save MTU in channels params")
Signed-off-by: default avatarFeras Daoud <ferasda@mellanox.com>
Reviewed-by: default avatarTariq Toukan <tariqt@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent eacecf27

drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c

+4 −0
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ void mlx5i_init(struct mlx5_core_dev *mdev, 
		void *ppriv)

{

	struct mlx5e_priv *priv  = mlx5i_epriv(netdev);

	u16 max_mtu;



	/* priv init */

	priv->mdev        = mdev;
@@ -84,6 +85,9 @@ void mlx5i_init(struct mlx5_core_dev *mdev, 
	priv->ppriv       = ppriv;

	mutex_init(&priv->state_lock);



	mlx5_query_port_max_mtu(mdev, &max_mtu, 1);

	netdev->mtu = max_mtu;



	mlx5e_build_nic_params(mdev, &priv->channels.params,

			       profile->max_nch(mdev), netdev->mtu);

	mlx5i_build_nic_params(mdev, &priv->channels.params);