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Commit 2dd57162 authored by Eli Cohen's avatar Eli Cohen Committed by Roland Dreier
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IB/core: Add support for modify CQ



Add support for modifying CQ parameters for controlling event
generation moderation.

Signed-off-by: default avatarEli Cohen <eli@mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 82c24c18
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+7 −0
Original line number Diff line number Diff line
@@ -630,6 +630,13 @@ struct ib_cq *ib_create_cq(struct ib_device *device,
}
EXPORT_SYMBOL(ib_create_cq);

int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
{
	return cq->device->modify_cq ?
		cq->device->modify_cq(cq, cq_count, cq_period) : -ENOSYS;
}
EXPORT_SYMBOL(ib_modify_cq);

int ib_destroy_cq(struct ib_cq *cq)
{
	if (atomic_read(&cq->usecnt))
+11 −0
Original line number Diff line number Diff line
@@ -987,6 +987,8 @@ struct ib_device {
						int comp_vector,
						struct ib_ucontext *context,
						struct ib_udata *udata);
	int                        (*modify_cq)(struct ib_cq *cq, u16 cq_count,
						u16 cq_period);
	int                        (*destroy_cq)(struct ib_cq *cq);
	int                        (*resize_cq)(struct ib_cq *cq, int cqe,
						struct ib_udata *udata);
@@ -1391,6 +1393,15 @@ struct ib_cq *ib_create_cq(struct ib_device *device,
 */
int ib_resize_cq(struct ib_cq *cq, int cqe);

/**
 * ib_modify_cq - Modifies moderation params of the CQ
 * @cq: The CQ to modify.
 * @cq_count: number of CQEs that will trigger an event
 * @cq_period: max period of time in usec before triggering an event
 *
 */
int ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period);

/**
 * ib_destroy_cq - Destroys the specified CQ.
 * @cq: The CQ to destroy.