diff options
| author | Eli Cohen <elic@nvidia.com> | 2023-01-03 10:37:23 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-03-25 02:04:30 +0300 |
| commit | b637ac5db0d0fd00cbe88469999ba2985355ac95 (patch) | |
| tree | b3da25af421648da34c1bae5a8214332798fb44b /drivers/net/ethernet/mellanox/mlx5/core/eq.c | |
| parent | 1dc85133c207831dbaa91941a98f6c488411927a (diff) | |
| download | linux-b637ac5db0d0fd00cbe88469999ba2985355ac95.tar.xz | |
net/mlx5: Use one completion vector if eth is disabled
If eth is disabled by devlink, use only a single completion vector to
have minimum performance of all users of completion vectors. This also
affects Infiniband performance.
The rest of the vectors can be used by other consumers on a first come
first served basis.
mlx5_vdpa will make use of this to allocate dedicated vectors for its
own use.
Signed-off-by: Eli Cohen <elic@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eq.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eq.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 66696c935cc5..eb41f0abf798 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -1120,6 +1120,13 @@ static int get_num_eqs(struct mlx5_core_dev *dev) int max_eqs_sf; int num_eqs; + /* If ethernet is disabled we use just a single completion vector to + * have the other vectors available for other drivers using mlx5_core. For + * example, mlx5_vdpa + */ + if (!mlx5_core_is_eth_enabled(dev) && mlx5_eth_supported(dev)) + return 1; + max_dev_eqs = MLX5_CAP_GEN(dev, max_num_eqs) ? MLX5_CAP_GEN(dev, max_num_eqs) : 1 << MLX5_CAP_GEN(dev, log_max_eq); |