From c835ad64683bd3e2d1b31ed2cb1ff4366932edb1 Mon Sep 17 00:00:00 2001 From: Gal Pressman Date: Thu, 8 Dec 2016 15:56:00 +0200 Subject: [PATCH] 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 Signed-off-by: Saeed Mahameed --- .../ethernet/mellanox/mlx5/core/mlx5_core.h | 5 ++++ .../net/ethernet/mellanox/mlx5/core/port.c | 24 +++++++++++++++++++ 2 files changed, 29 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h index 090e3a1dedc2..b3dabe6e8836 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h @@ -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); 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; -- 2.20.1