diff options
| author | Eli Cohen <elic@nvidia.com> | 2023-01-01 09:16:23 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-03-25 02:04:29 +0300 |
| commit | 3354822cde5a9f72aa725b3c619188b149a71a33 (patch) | |
| tree | ce1c2e74b7b938730f5a153f899a0a7deafa3c8c /drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c | |
| parent | b48a0f72bc3e5b10f55b3d40f051135fc9afd0e5 (diff) | |
| download | linux-3354822cde5a9f72aa725b3c619188b149a71a33.tar.xz | |
net/mlx5: Use dynamic msix vectors allocation
Current implementation calculates the number and the partitioaning of
available interrupts vectors and then allocates all the interrupt
vectors.
Here, whenever dynamic msix allocation is supported, we change this to
use msix vectors dynamically so a vectors is actually allocated only
when needed. The current pool logic is kept in place to take care of
partitioning the vectors between the consumers and take care of
reference counting. However, the vectors are allocated only when needed.
Subsequent patches will make use of this to allocate vectors for VDPA.
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/irq_affinity.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c b/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c index 6535e8813178..fa467335526e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/irq_affinity.c @@ -65,7 +65,8 @@ irq_pool_request_irq(struct mlx5_irq_pool *pool, struct irq_affinity_desc *af_de cpu_get(pool, cpumask_first(&af_desc->mask)); } return mlx5_irq_alloc(pool, irq_index, - cpumask_empty(&auto_desc.mask) ? af_desc : &auto_desc); + cpumask_empty(&auto_desc.mask) ? af_desc : &auto_desc, + NULL); } /* Looking for the IRQ with the smallest refcount that fits req_mask. @@ -205,7 +206,7 @@ int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs, * The PF IRQs are already allocated and binded to CPU * at this point. Hence, only an index is needed. */ - irq = mlx5_irq_request(dev, i, NULL); + irq = mlx5_irq_request(dev, i, NULL, NULL); if (IS_ERR(irq)) break; irqs[i] = irq; |