diff options
| author | Tariq Toukan <tariqt@nvidia.com> | 2023-08-07 09:05:34 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-12-14 05:03:30 +0300 |
| commit | f5e956329960903d908668d7a20bbc08e0a8b92b (patch) | |
| tree | fd5987d286fa5ff08ff1c6743d2b04af3a3e623e /drivers/net/ethernet/mellanox/mlx5/core/port.c | |
| parent | 13049408a4bd29c92227ca2d6befab80dbb96663 (diff) | |
| download | linux-f5e956329960903d908668d7a20bbc08e0a8b92b.tar.xz | |
net/mlx5: Expose Management PCIe Index Register (MPIR)
MPIR register allows to query the PCIe indexes
and Socket-Direct related parameters.
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/port.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/port.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index 7d8c732818f2..7fba1c46e2ac 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -1206,3 +1206,13 @@ int mlx5_port_max_linkspeed(struct mlx5_core_dev *mdev, u32 *speed) *speed = max_speed; return 0; } + +int mlx5_query_mpir_reg(struct mlx5_core_dev *dev, u32 *mpir) +{ + u32 in[MLX5_ST_SZ_DW(mpir_reg)] = {}; + int sz = MLX5_ST_SZ_BYTES(mpir_reg); + + MLX5_SET(mpir_reg, in, local_port, 1); + + return mlx5_core_access_reg(dev, in, sz, mpir, sz, MLX5_REG_MPIR, 0, 0); +} |