diff options
| author |   Yuval Atias <yuvala@mellanox.com> | 2014-05-14 12:15:10 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-05-14 15:40:32 -0400 |
| commit | 2eacc23c422b4553030168f315cb49522fa1b1f6 (patch) | |
| tree | 8733ae07b5752215afc6510a68f6ad7645297872 /drivers/net/ethernet/mellanox/mlx4/cq.c | |
| parent | macvlan: Propagate lowerdev MTU changes (diff) | |
| download | linux-dev-2eacc23c422b4553030168f315cb49522fa1b1f6.tar.xz linux-dev-2eacc23c422b4553030168f315cb49522fa1b1f6.zip | |
net/mlx4_core: Enforce irq affinity changes immediatly
During heavy traffic, napi is constatntly polling the complition queue
and no interrupt is fired. Because of that, changes to irq affinity are
ignored until traffic is stopped and resumed.
By registering to the irq notifier mechanism, and forcing interrupt when
affinity is changed, irq affinity changes will be immediatly enforced.
Signed-off-by: Yuval Atias <yuvala@mellanox.com>
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/cq.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/cq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/cq.c b/drivers/net/ethernet/mellanox/mlx4/cq.c index 0487121e4a0f..8542030b89cf 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cq.c +++ b/drivers/net/ethernet/mellanox/mlx4/cq.c @@ -293,6 +293,9 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent, atomic_set(&cq->refcount, 1); init_completion(&cq->free); + cq->irq = priv->eq_table.eq[cq->vector].irq; + cq->irq_affinity_change = false; + return 0; err_radix: |