void siw_qp_get_ref(struct ib_qp *ofa_qp)
{
struct siw_qp *qp = siw_qp_ofa2siw(ofa_qp);
dprint(DBG_OBJ|DBG_CM, "(QP%d): Get Reference\n", QP_ID(qp));
siw_qp_get(qp);
}
/*
* siw_wqe_alloc()
*
* Get new Send or Receive Queue WQE.
*
* To avoid blocking operation, kernel level clients get WQE's from
* QP private freelist. To minimize resource pre-allocation, user
* level clients get WQE's are kmalloc'ed.
*/
static inline struct siw_wqe *siw_wqe_alloc(struct siw_qp *qp,
enum siw_wr_opcode op)
{
struct siw_wqe *wqe = NULL;
atomic_t *q_space;
q_space = (op == SIW_WR_RECEIVE) ? &qp->rq_space : &qp->sq_space;
if (atomic_dec_return(q_space) < 0)
goto out;
if (qp->attrs.flags & SIW_KERNEL_VERBS)
wqe = siw_freeq_wqe_get(qp);
else {
wqe = kmalloc(sizeof(struct siw_wqe), GFP_KERNEL);
SIW_INC_STAT_WQE;
}
out:
if (wqe) {
INIT_LIST_HEAD(&wqe->list);
wqe->processed = 0;
wqe->wr.sgl.num_sge = 0;
siw_qp_get(qp);
wqe->qp = qp;
} else {
atomic_inc(q_space);
dprint(DBG_WR, " Failed, type:%d\n", op);
}
return wqe;
}
void siw_qp_get_ref(struct ib_qp *ofa_qp)
{
struct siw_qp *qp = siw_qp_ofa2siw(ofa_qp);
pr_debug(DBG_OBJ DBG_CM "(QP%d): Get Reference\n", QP_ID(qp));
siw_qp_get(qp);
}
