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 <matanb@xxxxxxxxxxxx> --- drivers/infiniband/hw/mlx5/cq.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index a00ba44..dabcc65 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); -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
