diff options
| author | Shay Drory <shayd@nvidia.com> | 2021-02-23 12:57:32 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2021-06-15 06:58:00 +0300 |
| commit | c36326d38d933199014aba5a17d384cf52e4b558 (patch) | |
| tree | f6794cde17b9b6d02dd5aa30697943da56399c0b /drivers/infiniband | |
| parent | c8ea212bfdff5152f1ca78400f297bfba75691e0 (diff) | |
| download | linux-c36326d38d933199014aba5a17d384cf52e4b558.tar.xz | |
net/mlx5: Round-Robin EQs over IRQs
Whenever users provided affinity for an EQ creation request, map the
EQ to a matching IRQ.
Matching IRQ=IRQ with the same affinity and type (completion/control) of
the EQ created.
This mapping is being done in agressive dedicated IRQ allocation scheme,
which described bellow.
First, we check whether there is a matching IRQ that his min threshold
is not exhausted.
- min_eqs_threshold = 3 for control EQ.
- min_eqs_threshold = 1 for completion EQ.
In case no matching IRQ was found, try to request a new IRQ.
In case we can't request a new IRQ, reuse least-used matching IRQ.
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/odp.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 8f88b044ccbc..1338c11fd121 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -1559,8 +1559,7 @@ int mlx5r_odp_create_eq(struct mlx5_ib_dev *dev, struct mlx5_ib_pf_eq *eq) } eq->irq_nb.notifier_call = mlx5_ib_eq_pf_int; - param = (struct mlx5_eq_param){ - .irq_index = 0, + param = (struct mlx5_eq_param) { .nent = MLX5_IB_NUM_PF_EQE, }; param.mask[0] = 1ull << MLX5_EVENT_TYPE_PAGE_FAULT; |