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| author | Aviv Heller | 2016-05-09 13:06:44 +0200 |
|---|---|---|
| committer | Leon Romanovsky | 2016-08-18 17:49:54 +0200 |
| commit | 6a32047a441b870dd2570fe0831dada5e9ce40f6 (patch) | |
| tree | 850da20e130405a1fd7d2ae3923797547824d797 | |
| parent | net/mlx5: Implement RoCE LAG feature (diff) | |
| download | kernel-qcow2-linux-6a32047a441b870dd2570fe0831dada5e9ce40f6.tar.gz kernel-qcow2-linux-6a32047a441b870dd2570fe0831dada5e9ce40f6.tar.xz kernel-qcow2-linux-6a32047a441b870dd2570fe0831dada5e9ce40f6.zip | |
net/mlx5: Get RoCE netdev
Used by IB driver for determining the IB bond
device's netdev, when LAG is active.
Returns PF0's netdev if mode is not active-backup,
or the PF netdev of the active slave when mode is
active-backup.
Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lag.c | 27 | ||||
| -rw-r--r-- | include/linux/mlx5/driver.h | 1 |
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c index 3bf0a7ffe0e0..952305054e16 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c @@ -528,3 +528,30 @@ bool mlx5_lag_is_active(struct mlx5_core_dev *dev) } EXPORT_SYMBOL(mlx5_lag_is_active); +struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev) +{ + struct net_device *ndev = NULL; + struct mlx5_lag *ldev; + + mutex_lock(&lag_mutex); + ldev = mlx5_lag_dev_get(dev); + + if (!(ldev && mlx5_lag_is_bonded(ldev))) + goto unlock; + + if (ldev->tracker.tx_type == NETDEV_LAG_TX_TYPE_ACTIVEBACKUP) { + ndev = ldev->tracker.netdev_state[0].tx_enabled ? + ldev->pf[0].netdev : ldev->pf[1].netdev; + } else { + ndev = ldev->pf[0].netdev; + } + if (ndev) + dev_hold(ndev); + +unlock: + mutex_unlock(&lag_mutex); + + return ndev; +} +EXPORT_SYMBOL(mlx5_lag_get_roce_netdev); + diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index ed983b8c3213..c568dd927330 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -945,6 +945,7 @@ void mlx5_unregister_interface(struct mlx5_interface *intf); int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id); bool mlx5_lag_is_active(struct mlx5_core_dev *dev); +struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev); struct mlx5_profile { u64 mask; |