diff options
| author | Maher Sanalla <msanalla@nvidia.com> | 2023-06-12 11:50:10 +0300 |
|---|---|---|
| committer | Saeed Mahameed <saeedm@nvidia.com> | 2023-08-07 20:53:51 +0300 |
| commit | ddd2c79da02021153dc8674e5a7e9748e56c1240 (patch) | |
| tree | c4e3fdd4ee4f7dfdf5dee52a7f552b9cff0dfe4d /drivers/net/ethernet/mellanox/mlx5/core/eq.c | |
| parent | e3e56775e91398df95c610bfc9bf4025db7dcf66 (diff) | |
| download | linux-ddd2c79da02021153dc8674e5a7e9748e56c1240.tar.xz | |
net/mlx5: Introduce mlx5_cpumask_default_spread
For better code readability in the completion IRQ request code, define
the cpu lookup per completion vector logic in a separate function.
The new method mlx5_cpumask_default_spread() given a vector index 'n'
will return the 'nth' cpu. This new method will be used also in the next
patch.
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/eq.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/eq.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c index 41fa15757101..ad654d460d0c 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c @@ -826,20 +826,18 @@ static void comp_irq_release_pci(struct mlx5_core_dev *dev, u16 vecidx) mlx5_irq_release_vector(irq); } -static int comp_irq_request_pci(struct mlx5_core_dev *dev, u16 vecidx) +static int mlx5_cpumask_default_spread(int numa_node, int index) { - struct mlx5_eq_table *table = dev->priv.eq_table; const struct cpumask *prev = cpu_none_mask; const struct cpumask *mask; - struct mlx5_irq *irq; int found_cpu = 0; int i = 0; int cpu; rcu_read_lock(); - for_each_numa_hop_mask(mask, dev->priv.numa_node) { + for_each_numa_hop_mask(mask, numa_node) { for_each_cpu_andnot(cpu, mask, prev) { - if (i++ == vecidx) { + if (i++ == index) { found_cpu = cpu; goto spread_done; } @@ -849,7 +847,17 @@ static int comp_irq_request_pci(struct mlx5_core_dev *dev, u16 vecidx) spread_done: rcu_read_unlock(); - irq = mlx5_irq_request_vector(dev, found_cpu, vecidx, &table->rmap); + return found_cpu; +} + +static int comp_irq_request_pci(struct mlx5_core_dev *dev, u16 vecidx) +{ + struct mlx5_eq_table *table = dev->priv.eq_table; + struct mlx5_irq *irq; + int cpu; + + cpu = mlx5_cpumask_default_spread(dev->priv.numa_node, vecidx); + irq = mlx5_irq_request_vector(dev, cpu, vecidx, &table->rmap); if (IS_ERR(irq)) return PTR_ERR(irq); |