int siw_dealloc_pd(struct ib_pd *ofa_pd)
{
struct siw_pd *pd = siw_pd_ofa2siw(ofa_pd);
struct siw_dev *sdev = siw_dev_ofa2siw(ofa_pd->device);
siw_remove_obj(&sdev->idr_lock, &sdev->pd_idr, &pd->hdr);
siw_pd_put(pd);
return 0;
}
/*
* siw_dereg_mr()
*
* Release Memory Region.
*
* TODO: Update function if Memory Windows are supported by siw:
* Is OFED core checking for MW dependencies for current
* MR before calling MR deregistration?.
*
* @ofa_mr: OFA MR contained in siw MR.
*/
int siw_dereg_mr(struct ib_mr *ofa_mr)
{
struct siw_mr *mr;
struct siw_dev *sdev = siw_dev_ofa2siw(ofa_mr->device);
mr = siw_mr_ofa2siw(ofa_mr);
dprint(DBG_OBJ|DBG_MM, "(MEM%d): Release UMem %p, #ref's: %d\n",
mr->mem.hdr.id, mr->umem,
atomic_read(&mr->mem.hdr.ref.refcount));
mr->mem.stag_state = STAG_INVALID;
siw_pd_put(mr->pd);
siw_remove_obj(&sdev->idr_lock, &sdev->mem_idr, &mr->mem.hdr);
siw_mem_put(&mr->mem);
return 0;
}
int siw_destroy_qp(struct ib_qp *ofa_qp)
{
struct siw_qp *qp = siw_qp_ofa2siw(ofa_qp);
struct siw_qp_attrs qp_attrs;
dprint(DBG_CM, "(QP%d): SIW QP state=%d, cep=0x%p\n",
QP_ID(qp), qp->attrs.state, qp->cep);
/*
* Mark QP as in process of destruction to prevent from eventual async
* callbacks to OFA core
*/
qp->attrs.flags |= SIW_QP_IN_DESTROY;
qp->rx_ctx.rx_suspend = 1;
down_write(&qp->state_lock);
qp_attrs.state = SIW_QP_STATE_ERROR;
(void)siw_qp_modify(qp, &qp_attrs, SIW_QP_ATTR_STATE);
if (qp->cep) {
siw_cep_put(qp->cep);
qp->cep = NULL;
}
up_write(&qp->state_lock);
if (qp->rx_ctx.crc_enabled)
crypto_free_hash(qp->rx_ctx.mpa_crc_hd.tfm);
if (qp->tx_ctx.crc_enabled)
crypto_free_hash(qp->tx_ctx.mpa_crc_hd.tfm);
/* Drop references */
siw_cq_put(qp->scq);
siw_cq_put(qp->rcq);
siw_pd_put(qp->pd);
qp->scq = qp->rcq = NULL;
siw_qp_put(qp);
return 0;
}
int siw_destroy_qp(struct ib_qp *ofa_qp)
{
struct siw_qp *qp = siw_qp_ofa2siw(ofa_qp);
struct siw_qp_attrs qp_attrs;
pr_debug(DBG_CM "(QP%d): SIW QP state=%d, cep=0x%p\n",
QP_ID(qp), qp->attrs.state, qp->cep);
/*
* Mark QP as in process of destruction to prevent from eventual async
* callbacks to OFA core
*/
qp->attrs.flags |= SIW_QP_IN_DESTROY;
down_write(&qp->state_lock);
qp_attrs.state = SIW_QP_STATE_ERROR;
(void)siw_qp_modify(qp, &qp_attrs, SIW_QP_ATTR_STATE);
if (qp->cep) {
siw_cep_put(qp->cep);
qp->cep = NULL;
}
up_write(&qp->state_lock);
/* Drop references */
siw_cq_put(qp->scq);
siw_cq_put(qp->rcq);
siw_pd_put(qp->pd);
qp->scq = qp->rcq = NULL;
siw_qp_put(qp);
return 0;
}
