diff options
| author |   Eyal Davidovich <eyald@mellanox.com> | 2018-10-07 15:18:37 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2018-12-11 14:52:20 -0800 |
| commit | 75370eb0d3b802f54600f2fc3ae5255fe9270112 (patch) | |
| tree | 6ad185ba9d93fb9d0028749c0f86d138bf969d22 /drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | |
| parent | net/mlx5e: Use CQE padding for Ethernet CQs (diff) | |
| download | wireguard-linux-75370eb0d3b802f54600f2fc3ae5255fe9270112.tar.xz wireguard-linux-75370eb0d3b802f54600f2fc3ae5255fe9270112.zip | |
net/mlx5e: Avoid query PPCNT register if not supported by the device
PPCNT is not supported if PCAM access reg is supported and ppcnt bit is clear.
Signed-off-by: Eyal Davidovich <eyald@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_stats.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_stats.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c index 75d30fa637d6..8224f1e062a8 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.c @@ -483,6 +483,9 @@ static int mlx5e_grp_802_3_fill_stats(struct mlx5e_priv *priv, u64 *data, return idx; } +#define MLX5_BASIC_PPCNT_SUPPORTED(mdev) \ + (MLX5_CAP_GEN(mdev, pcam_reg) ? MLX5_CAP_PCAM_REG(mdev, ppcnt) : 1) + static void mlx5e_grp_802_3_update_stats(struct mlx5e_priv *priv) { struct mlx5e_pport_stats *pstats = &priv->stats.pport; @@ -491,6 +494,9 @@ static void mlx5e_grp_802_3_update_stats(struct mlx5e_priv *priv) int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); void *out; + if (!MLX5_BASIC_PPCNT_SUPPORTED(mdev)) + return; + MLX5_SET(ppcnt_reg, in, local_port, 1); out = pstats->IEEE_802_3_counters; MLX5_SET(ppcnt_reg, in, grp, MLX5_IEEE_802_3_COUNTERS_GROUP); @@ -603,6 +609,9 @@ static void mlx5e_grp_2819_update_stats(struct mlx5e_priv *priv) int sz = MLX5_ST_SZ_BYTES(ppcnt_reg); void *out; + if (!MLX5_BASIC_PPCNT_SUPPORTED(mdev)) + return; + MLX5_SET(ppcnt_reg, in, local_port, 1); out = pstats->RFC_2819_counters; MLX5_SET(ppcnt_reg, in, grp, MLX5_RFC_2819_COUNTERS_GROUP); @@ -1078,6 +1087,9 @@ static void mlx5e_grp_per_prio_update_stats(struct mlx5e_priv *priv) int prio; void *out; + if (!MLX5_BASIC_PPCNT_SUPPORTED(mdev)) + return; + MLX5_SET(ppcnt_reg, in, local_port, 1); MLX5_SET(ppcnt_reg, in, grp, MLX5_PER_PRIORITY_COUNTERS_GROUP); for (prio = 0; prio < NUM_PPORT_PRIO; prio++) { |