net/mlx5: Fix setting number of EQs of SFs

When setting number of completion EQs of the SF, consider number of
online CPUs.
Without this consideration, when number of online cpus are less than 8,
unnecessary 8 completion EQs are allocated.

Fixes: b18d77d71442 ("net/mlx5: Round-Robin EQs over IRQs")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
index df54f62a38ac385d3c99aa1cf9462ec98bc2a213..763c83a0238091ef55b7e13d78bc4dc41212be60 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c
@@ -633,8 +633,9 @@ void mlx5_irq_table_destroy(struct mlx5_core_dev *dev)
 int mlx5_irq_table_get_sfs_vec(struct mlx5_irq_table *table)
 {
        if (table->sf_comp_pool)
-               return table->sf_comp_pool->xa_num_irqs.max -
-                       table->sf_comp_pool->xa_num_irqs.min + 1;
+               return min_t(int, num_online_cpus(),
+                            table->sf_comp_pool->xa_num_irqs.max -
+                            table->sf_comp_pool->xa_num_irqs.min + 1);
        else
                return mlx5_irq_table_get_num_comp(table);
 }