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net/mlx5: Implement PCAM, MCAM access register commands

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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>
This commit is contained in:
Gal Pressman
2016-12-08 15:56:00 +02:00
committed by Saeed Mahameed
parent cfdcbceaef
commit c835ad6468
2 changed files with 29 additions and 0 deletions
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5
drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h
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@@ -113,6 +113,11 @@ u32 mlx5_get_msix_vec(struct mlx5_core_dev *dev, int vecidx);
struct mlx5_eq *mlx5_eqn2eq(struct mlx5_core_dev *dev, int eqn);
void mlx5_cq_tasklet_cb(unsigned long data);
int mlx5_query_pcam_reg(struct mlx5_core_dev *dev, u32 *pcam, u8 feature_group,
u8 access_reg_group);
int mlx5_query_mcam_reg(struct mlx5_core_dev *dev, u32 *mcap, u8 feature_group,
u8 access_reg_group);
void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev);
void mlx5_lag_remove(struct mlx5_core_dev *dev);

24
drivers/net/ethernet/mellanox/mlx5/core/port.c
View File

@@ -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;