diff options
| author | Matan Barak <[email protected]> | 2016-04-17 17:08:41 +0300 |
|---|---|---|
| committer | Doug Ledford <[email protected]> | 2016-05-18 10:45:49 -0400 |
| commit | c16d2750a08c8ccaf98d65f287a8aec91bb9610d (patch) | |
| tree | 21fbe727b8a95609dbad0d4a7e6ac2e94fe78177 | |
| parent | 94c6825e0ff75829207af6246782811b7c7af2c0 (diff) | |
IB/mlx5: Fire the CQ completion handler from tasklet
Previously, mlx5_ib_cq_comp was executed from interrupt context.
Under heavy load, this could cause the CPU core to be in an interrupt
context too long.
Instead of executing the handler from the interrupt context we
execute it from a much friendly tasklet context.
Signed-off-by: Matan Barak <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index a00ba4418de9..dabcc65bd65e 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -879,7 +879,10 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, mlx5_ib_dbg(dev, "cqn 0x%x\n", cq->mcq.cqn); cq->mcq.irqn = irqn; - cq->mcq.comp = mlx5_ib_cq_comp; + if (context) + cq->mcq.tasklet_ctx.comp = mlx5_ib_cq_comp; + else + cq->mcq.comp = mlx5_ib_cq_comp; cq->mcq.event = mlx5_ib_cq_event; INIT_LIST_HEAD(&cq->wc_list); |