net/mlx5: Increase hairpin buffer size

The max packet size a hairpin queue is able to handle
is determined by the total hairpin buffer size divided
by 4.

Currently the buffer size is set to 32KB which makes
the max packet size to be 8KB and doesn't support
jumbo frames of size 9KB.

This change increases the buffer size to 64KB to increase
the max frame size and support 9KB frames.

Signed-off-by: Ariel Levkovich <lariel@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index 8d84d0712c208028374f94d6ffd95c8a4a4203e7..629a61e8022f05a79c89d18cac6613a5d88818bb 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -846,7 +846,7 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv,
                 hash_hairpin_info(peer_id, match_prio));
        mutex_unlock(&priv->fs.tc.hairpin_tbl_lock);
 
-       params.log_data_size = 15;
+       params.log_data_size = 16;
        params.log_data_size = min_t(u8, params.log_data_size,
                                     MLX5_CAP_GEN(priv->mdev, log_max_hairpin_wq_data_sz));
        params.log_data_size = max_t(u8, params.log_data_size,