diff options
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/port.c | 53 | ||||
| -rw-r--r-- | include/linux/mlx5/driver.h | 4 |
2 files changed, 57 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index 742a6fb8debe..7d3d0f9f328d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -211,3 +211,56 @@ int mlx5_query_port_status(struct mlx5_core_dev *dev, u8 *status) *status = MLX5_GET(paos_reg, out, oper_status); return err; } + +static int mlx5_query_port_mtu(struct mlx5_core_dev *dev, + int *admin_mtu, int *max_mtu, int *oper_mtu) +{ + u32 in[MLX5_ST_SZ_DW(pmtu_reg)]; + u32 out[MLX5_ST_SZ_DW(pmtu_reg)]; + int err; + + memset(in, 0, sizeof(in)); + + MLX5_SET(pmtu_reg, in, local_port, 1); + + err = mlx5_core_access_reg(dev, in, sizeof(in), out, + sizeof(out), MLX5_REG_PMTU, 0, 0); + if (err) + return err; + + if (max_mtu) + *max_mtu = MLX5_GET(pmtu_reg, out, max_mtu); + if (oper_mtu) + *oper_mtu = MLX5_GET(pmtu_reg, out, oper_mtu); + if (admin_mtu) + *admin_mtu = MLX5_GET(pmtu_reg, out, admin_mtu); + + return 0; +} + +int mlx5_set_port_mtu(struct mlx5_core_dev *dev, int mtu) +{ + u32 in[MLX5_ST_SZ_DW(pmtu_reg)]; + u32 out[MLX5_ST_SZ_DW(pmtu_reg)]; + + memset(in, 0, sizeof(in)); + + MLX5_SET(pmtu_reg, in, admin_mtu, mtu); + MLX5_SET(pmtu_reg, in, local_port, 1); + + return mlx5_core_access_reg(dev, in, sizeof(in), out, sizeof(out), + MLX5_REG_PMTU, 0, 1); +} +EXPORT_SYMBOL_GPL(mlx5_set_port_mtu); + +int mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, int *max_mtu) +{ + return mlx5_query_port_mtu(dev, NULL, max_mtu, NULL); +} +EXPORT_SYMBOL_GPL(mlx5_query_port_max_mtu); + +int mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu) +{ + return mlx5_query_port_mtu(dev, NULL, NULL, oper_mtu); +} +EXPORT_SYMBOL_GPL(mlx5_query_port_oper_mtu); diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h index 6438444ab361..51738472657e 100644 --- a/include/linux/mlx5/driver.h +++ b/include/linux/mlx5/driver.h @@ -710,6 +710,10 @@ int mlx5_set_port_status(struct mlx5_core_dev *dev, enum mlx5_port_status status); int mlx5_query_port_status(struct mlx5_core_dev *dev, u8 *status); +int mlx5_set_port_mtu(struct mlx5_core_dev *dev, int mtu); +int mlx5_query_port_max_mtu(struct mlx5_core_dev *dev, int *max_mtu); +int mlx5_query_port_oper_mtu(struct mlx5_core_dev *dev, int *oper_mtu); + int mlx5_debug_eq_add(struct mlx5_core_dev *dev, struct mlx5_eq *eq); void mlx5_debug_eq_remove(struct mlx5_core_dev *dev, struct mlx5_eq *eq); int mlx5_core_eq_query(struct mlx5_core_dev *dev, struct mlx5_eq *eq, |