diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/port.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/port.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 97d342fa503..f50ef6a5ee5 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -123,6 +123,26 @@ static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port, return err; } +int mlx4_find_cached_mac(struct mlx4_dev *dev, u8 port, u64 mac, int *idx) +{ + struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; + struct mlx4_mac_table *table = &info->mac_table; + int i; + + for (i = 0; i < MLX4_MAX_MAC_NUM; i++) { + if (!table->refs[i]) + continue; + + if (mac == (MLX4_MAC_MASK & be64_to_cpu(table->entries[i]))) { + *idx = i; + return 0; + } + } + + return -ENOENT; +} +EXPORT_SYMBOL_GPL(mlx4_find_cached_mac); + int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac) { struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; |