diff options
| author | Tariq Toukan <tariqt@mellanox.com> | 2018-02-11 12:58:30 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@mellanox.com> | 2018-03-28 03:17:27 +0300 |
| commit | 291f445eab9b2b11c8dd05ae1a0943c328cb9b6b (patch) | |
| tree | 345dcfe69119f0433e1532acd02526af1849877d /drivers | |
| parent | 0608d4dbaf4ee30a33def4c31b78bc664c80ff79 (diff) | |
| download | linux-291f445eab9b2b11c8dd05ae1a0943c328cb9b6b.tar.xz | |
net/mlx5e: Disable Striding RQ when PCI is slower than link
We turn the feature off for servers with PCI BW bounded
by a threshold (16G) and lower than MAX LINK BW.
This improves the effectiveness of CQE compression feature,
that is defaulted to ON for the same case.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 46707826f27e..d4dd00089eb1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -113,13 +113,16 @@ void mlx5e_init_rq_type_params(struct mlx5_core_dev *mdev, MLX5E_GET_PFLAG(params, MLX5E_PFLAG_RX_CQE_COMPRESS)); } +static bool slow_pci_heuristic(struct mlx5_core_dev *mdev); + static void mlx5e_set_rq_params(struct mlx5_core_dev *mdev, struct mlx5e_params *params) { u8 rq_type = mlx5e_check_fragmented_striding_rq_cap(mdev) && - !params->xdp_prog && !MLX5_IPSEC_DEV(mdev) ? - MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ : - MLX5_WQ_TYPE_LINKED_LIST; + !slow_pci_heuristic(mdev) && + !params->xdp_prog && !MLX5_IPSEC_DEV(mdev) ? + MLX5_WQ_TYPE_LINKED_LIST_STRIDING_RQ : + MLX5_WQ_TYPE_LINKED_LIST; mlx5e_init_rq_type_params(mdev, params, rq_type); } |