diff options
| author |   Feras Daoud <ferasda@mellanox.com> | 2018-07-15 13:59:36 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2018-07-31 12:58:45 -0700 |
| commit | 8e1d162d8e81838119de18b4ca1e302ce906f2a6 (patch) | |
| tree | b9ee6518a1d1cd768af2577a32a65cfd1523f922 /drivers/net/ethernet/mellanox/mlx5/core/ipoib | |
| parent | net/mlx5e: Fix null pointer access when setting MTU of vport representor (diff) | |
| download | linux-dev-8e1d162d8e81838119de18b4ca1e302ce906f2a6.tar.xz linux-dev-8e1d162d8e81838119de18b4ca1e302ce906f2a6.zip | |
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: 472a1e44b349 ("net/mlx5e: Save MTU in channels params")
Signed-off-by: Feras Daoud <ferasda@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/ipoib')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c index af3bb2f7a504..b7c21eb21a21 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c @@ -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); |