diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2018-05-22 16:43:54 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-07-26 15:23:56 -0700 |
| commit | dac0d15fff6f825e93aafa6ba8bf24fd77ecb2ae (patch) | |
| tree | 0ef308649df11eb9610d54b4bccd73dd13b982a3 /drivers/net/ethernet/mellanox/mlx5/core/en_stats.h | |
| parent | 890388ad6f6b3740265173fa5296ece5d945e977 (diff) | |
net/mlx5e: Re-order fields of struct mlx5e_xdpsq
In the downstream patch that adds support to XDP_REDIRECT-out,
the XDP xmit frame function doesn't share the same run context as
the NAPI that polls the XDP-SQ completion queue.
Hence, need to re-order the XDP-SQ fields to avoid cacheline
false-sharing.
Take redirect_flush and doorbell out of DB, into separated
cachelines.
Add a cacheline breaker within the stats struct.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_stats.h')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_stats.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h index 95e1f32c67d9..7aa8ff389cdd 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h @@ -230,7 +230,8 @@ struct mlx5e_xdpsq_stats { u64 xmit; u64 full; u64 err; - u64 cqes; + /* dirtied @completion */ + u64 cqes ____cacheline_aligned_in_smp; }; struct mlx5e_ch_stats { |