diff mbox series

[5/5] SHOWCASE: net/mlx5e: Leverage for_each_numa_hop_cpu()

Message ID 20220816180727.387807-6-vschneid@redhat.com (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series cpumask, sched/topology: NUMA-aware CPU spreading interface | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Valentin Schneider Aug. 16, 2022, 6:07 p.m. UTC 
Not-signed-off-by: Valentin Schneider <vschneid@redhat.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eq.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 229728c80233..0a5432903edd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -812,6 +812,7 @@  static int comp_irqs_request(struct mlx5_core_dev *dev)
 	int ncomp_eqs = table->num_comp_eqs;
 	u16 *cpus;
 	int ret;
+	int cpu;
 	int i;
 
 	ncomp_eqs = table->num_comp_eqs;
@@ -830,8 +831,15 @@  static int comp_irqs_request(struct mlx5_core_dev *dev)
 		ret = -ENOMEM;
 		goto free_irqs;
 	}
-	for (i = 0; i < ncomp_eqs; i++)
-		cpus[i] = cpumask_local_spread(i, dev->priv.numa_node);
+
+	rcu_read_lock();
+	for_each_numa_hop_cpus(cpu, dev->priv.numa_node) {
+		cpus[i] = cpu;
+		if (++i == ncomp_eqs)
+			goto spread_done;
+	}
+spread_done:
+	rcu_read_unlock();
 	ret = mlx5_irqs_request_vectors(dev, cpus, ncomp_eqs, table->comp_irqs);
 	kfree(cpus);
 	if (ret < 0)