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Commit 4107b8a0 authored by Mike Marciniszyn's avatar Mike Marciniszyn Committed by Doug Ledford
Browse files

IB/rdmavt: Add functions to get and release QP references 



This centralizes the function and improves code readability.

Reviewed-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarMike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: default avatarDennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent e4618d40

include/rdma/rdmavt_qp.h

+19 −0
Original line number Diff line number Diff line
@@ -465,6 +465,25 @@ static inline struct rvt_rwqe *rvt_get_rwqe_ptr(struct rvt_rq *rq, unsigned n) 
		  rq->max_sge * sizeof(struct ib_sge)) * n);

}



/**

 * rvt_get_qp - get a QP reference

 * @qp - the QP to hold

 */

static inline void rvt_get_qp(struct rvt_qp *qp)

{

	atomic_inc(&qp->refcount);

}



/**

 * rvt_put_qp - release a QP reference

 * @qp - the QP to release

 */

static inline void rvt_put_qp(struct rvt_qp *qp)

{

	if (qp && atomic_dec_and_test(&qp->refcount))

		wake_up(&qp->wait);

}



/**

 * rvt_qp_wqe_reserve - reserve operation

 * @qp - the rvt qp