diff options
author | Gal Pressman <galp@mellanox.com> | 2016-12-08 15:56:00 +0200 |
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committer | Saeed Mahameed <saeedm@mellanox.com> | 2017-01-19 23:19:58 +0200 |
commit | c835ad64683bd3e2d1b31ed2cb1ff4366932edb1 (patch) | |
tree | 1d7c65b413deaa803663fb524e447760fccef2d7 /drivers/net/ethernet/mellanox/mlx5/core/port.c | |
parent | net/mlx5: Expose PCAM, MCAM registers infrastructure (diff) | |
download | linux-dev-c835ad64683bd3e2d1b31ed2cb1ff4366932edb1.tar.xz linux-dev-c835ad64683bd3e2d1b31ed2cb1ff4366932edb1.zip |
net/mlx5: Implement PCAM, MCAM access register commands
Introduced registers will expose capabilities of new registers and
features related to port/management.
Driver will query MCAM and PCAM in order to avoid failing on old
firmwares with lack of support.
Signed-off-by: Gal Pressman <galp@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/port.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/port.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c index 5ea85336b2e4..969e352435ee 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/port.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c @@ -74,6 +74,30 @@ out: } EXPORT_SYMBOL_GPL(mlx5_core_access_reg); +int mlx5_query_pcam_reg(struct mlx5_core_dev *dev, u32 *pcam, u8 feature_group, + u8 access_reg_group) +{ + u32 in[MLX5_ST_SZ_DW(pcam_reg)] = {0}; + int sz = MLX5_ST_SZ_BYTES(pcam_reg); + + MLX5_SET(pcam_reg, in, feature_group, feature_group); + MLX5_SET(pcam_reg, in, access_reg_group, access_reg_group); + + return mlx5_core_access_reg(dev, in, sz, pcam, sz, MLX5_REG_PCAM, 0, 0); +} + +int mlx5_query_mcam_reg(struct mlx5_core_dev *dev, u32 *mcam, u8 feature_group, + u8 access_reg_group) +{ + u32 in[MLX5_ST_SZ_DW(mcam_reg)] = {0}; + int sz = MLX5_ST_SZ_BYTES(mcam_reg); + + MLX5_SET(mcam_reg, in, feature_group, feature_group); + MLX5_SET(mcam_reg, in, access_reg_group, access_reg_group); + + return mlx5_core_access_reg(dev, in, sz, mcam, sz, MLX5_REG_MCAM, 0, 0); +} + struct mlx5_reg_pcap { u8 rsvd0; u8 port_num; |