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net/mlx5: Add support to get lag physical port 

Add function to get the device physical port of the lag slave.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Maor Gottlieb 2020-04-30 22:21:41 +03:00 committed by Saeed Mahameed
parent 64363e61c7
commit c6bc6041b1
2 changed files with 26 additions and 0 deletions
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24
drivers/net/ethernet/mellanox/mlx5/core/lag.c
View File

@ -687,6 +687,30 @@ struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev)
}
EXPORT_SYMBOL(mlx5_lag_get_roce_netdev);
u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
struct net_device *slave)
{
struct mlx5_lag *ldev;
u8 port = 0;
spin_lock(&lag_lock);
ldev = mlx5_lag_dev_get(dev);
if (!(ldev && __mlx5_lag_is_roce(ldev)))
goto unlock;
if (ldev->pf[MLX5_LAG_P1].netdev == slave)
port = MLX5_LAG_P1;
else
port = MLX5_LAG_P2;
port = ldev->v2p_map[port];
unlock:
spin_unlock(&lag_lock);
return port;
}
EXPORT_SYMBOL(mlx5_lag_get_slave_port);
bool mlx5_lag_intf_add(struct mlx5_interface *intf, struct mlx5_priv *priv)
{
struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev,

2
include/linux/mlx5/driver.h
View File

@ -1074,6 +1074,8 @@ bool mlx5_lag_is_sriov(struct mlx5_core_dev *dev);
bool mlx5_lag_is_multipath(struct mlx5_core_dev *dev);
bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);
u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
struct net_device *slave);
int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
u64 *values,
int num_counters,