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

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This centralizes the function and improves code readability.

Reviewed-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Mike Marciniszyn <[email protected]>
Signed-off-by: Dennis Dalessandro <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Mike Marciniszyn 2016-09-06 04:34:21 -07:00 • committed by Doug Ledford
commit 4107b8a029
1 changed files with 19 additions and 0 deletions
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19
include/rdma/rdmavt_qp.h
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@ -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