Commit c16d2750 authored by Matan Barak's avatar Matan Barak Committed by Doug Ledford

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: default avatarMatan Barak <matanb@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 94c6825e
...@@ -879,6 +879,9 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, ...@@ -879,6 +879,9 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,
mlx5_ib_dbg(dev, "cqn 0x%x\n", cq->mcq.cqn); mlx5_ib_dbg(dev, "cqn 0x%x\n", cq->mcq.cqn);
cq->mcq.irqn = irqn; cq->mcq.irqn = irqn;
if (context)
cq->mcq.tasklet_ctx.comp = mlx5_ib_cq_comp;
else
cq->mcq.comp = mlx5_ib_cq_comp; cq->mcq.comp = mlx5_ib_cq_comp;
cq->mcq.event = mlx5_ib_cq_event; cq->mcq.event = mlx5_ib_cq_event;
......
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