summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/mellanox/mlx4/en_cq.c
diff options
context:
space:
mode:
authorAmir Vadai <amirv@mellanox.com>2014-06-29 12:54:55 +0400
committerDavid S. Miller <davem@davemloft.net>2014-07-03 05:29:23 +0400
commit35f6f45368632f21bd27559c44dbb1cab51d8947 (patch)
tree0d1401763591079cb2d2300a0313f5c205593677 /drivers/net/ethernet/mellanox/mlx4/en_cq.c
parent1b037474d0c0b5ceb65bc809e3d8ac4497ee041b (diff)
downloadlinux-35f6f45368632f21bd27559c44dbb1cab51d8947.tar.xz
net/mlx4_en: Don't use irq_affinity_notifier to track changes in IRQ affinity map
IRQ affinity notifier can only have a single notifier - cpu_rmap notifier. Can't use it to track changes in IRQ affinity map. Detect IRQ affinity changes by comparing CPU to current IRQ affinity map during NAPI poll thread. CC: Thomas Gleixner <tglx@linutronix.de> CC: Ben Hutchings <ben@decadent.org.uk> Fixes: 2eacc23 ("net/mlx4_core: Enforce irq affinity changes immediatly") Signed-off-by: Amir Vadai <amirv@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_cq.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/en_cq.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index 4b2130760eed..1213cc71348c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -128,6 +128,10 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
mlx4_warn(mdev, "Failed assigning an EQ to %s, falling back to legacy EQ's\n",
name);
}
+
+ cq->irq_desc =
+ irq_to_desc(mlx4_eq_get_irq(mdev->dev,
+ cq->vector));
}
} else {
cq->vector = (cq->ring + 1 + priv->port) %