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Commit 972ecb82 authored by Matan Barak's avatar Matan Barak Committed by Doug Ledford
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IB/mlx5: Add create_cq extended command 



In order to create a CQ that supports timestamp, mlx5 needs to
support the extended create CQ command with the timestamp flag.

Signed-off-by: default avatarMatan Barak <matanb@mellanox.com>
Reviewed-by: default avatarEli Cohen <eli@mellanox.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 145d9c54

drivers/infiniband/hw/mlx5/cq.c

+7 −0
Original line number Diff line number Diff line
@@ -757,6 +757,10 @@ static void destroy_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq) 
	mlx5_db_free(dev->mdev, &cq->db);

}



enum {

	CQ_CREATE_FLAGS_SUPPORTED = IB_CQ_FLAGS_TIMESTAMP_COMPLETION

};



struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev,

				const struct ib_cq_init_attr *attr,

				struct ib_ucontext *context,
@@ -780,6 +784,9 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, 
	if (entries < 0)

		return ERR_PTR(-EINVAL);



	if (attr->flags & ~CQ_CREATE_FLAGS_SUPPORTED)

		return ERR_PTR(-EOPNOTSUPP);



	entries = roundup_pow_of_two(entries + 1);

	if (entries > (1 << MLX5_CAP_GEN(dev->mdev, log_max_cq_sz)))

		return ERR_PTR(-EINVAL);