From 197d237077295793a3e4ea0abcbea106f8b4217c Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 10 Dec 2020 20:25:57 +0100 Subject: [PATCH] net/mlx4: Use effective interrupt affinity Using the interrupt affinity mask for checking locality is not really working well on architectures which support effective affinity masks. The affinity mask is either the system wide default or set by user space, but the architecture can or even must reduce the mask to the effective set, which means that checking the affinity mask itself does not really tell about the actual target CPUs. Signed-off-by: Thomas Gleixner Cc: Tariq Toukan Link: https://lore.kernel.org/r/20201210194044.672935978@linutronix.de --- drivers/net/ethernet/mellanox/mlx4/en_cq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c index 2a250f3..d5fc72b 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c @@ -117,7 +117,7 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq, assigned_eq = true; } irq = mlx4_eq_get_irq(mdev->dev, cq->vector); - cq->aff_mask = irq_get_affinity_mask(irq); + cq->aff_mask = irq_get_effective_affinity_mask(irq); } else { /* For TX we use the same irq per ring we assigned for the RX */ -- 2.7.4