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net/mlx5: Fix indexing of mlx5_irq 

After the cited patch, mlx5_irq xarray index can be different then
mlx5_irq MSIX table index.
Fix it by storing both mlx5_irq xarray index and MSIX table index.

Fixes: 3354822cde ("net/mlx5: Use dynamic msix vectors allocation")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
This commit is contained in:
Shay Drory 2023-04-17 10:57:50 +03:00 committed by Saeed Mahameed
parent ef8c063cf8
commit 1da438c0ae
1 changed files with 5 additions and 4 deletions
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9
drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
View File

@ -32,6 +32,7 @@ struct mlx5_irq {
struct mlx5_irq_pool *pool;
int refcount;
struct msi_map map;
u32 pool_index;
};
struct mlx5_irq_table {
@ -132,7 +133,7 @@ static void irq_release(struct mlx5_irq *irq)
struct cpu_rmap *rmap;
#endif
xa_erase(&pool->irqs, irq->map.index);
xa_erase(&pool->irqs, irq->pool_index);
/* free_irq requires that affinity_hint and rmap will be cleared before
* calling it. To satisfy this requirement, we call
* irq_cpu_rmap_remove() to remove the notifier
@ -276,11 +277,11 @@ struct mlx5_irq *mlx5_irq_alloc(struct mlx5_irq_pool *pool, int i,
}
irq->pool = pool;
irq->refcount = 1;
irq->map.index = i;
err = xa_err(xa_store(&pool->irqs, irq->map.index, irq, GFP_KERNEL));
irq->pool_index = i;
err = xa_err(xa_store(&pool->irqs, irq->pool_index, irq, GFP_KERNEL));
if (err) {
mlx5_core_err(dev, "Failed to alloc xa entry for irq(%u). err = %d\n",
irq->map.index, err);
irq->pool_index, err);
goto err_xa;
}
return irq;