int siw_ofed_modify_qp(struct ib_qp *ofa_qp, struct ib_qp_attr *attr,
int attr_mask, struct ib_udata *udata)
{
struct siw_qp_attrs new_attrs;
enum siw_qp_attr_mask siw_attr_mask = 0;
struct siw_qp *qp = siw_qp_ofa2siw(ofa_qp);
int rv = 0;
if (!attr_mask) {
dprint(DBG_CM, "(QP%d): attr_mask==0 ignored\n", QP_ID(qp));
goto out;
}
siw_dprint_qp_attr_mask(attr_mask);
memset(&new_attrs, 0, sizeof new_attrs);
if (attr_mask & IB_QP_ACCESS_FLAGS) {
siw_attr_mask |= SIW_QP_ATTR_ACCESS_FLAGS;
if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ)
new_attrs.flags |= SIW_RDMA_READ_ENABLED;
if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE)
new_attrs.flags |= SIW_RDMA_WRITE_ENABLED;
if (attr->qp_access_flags & IB_ACCESS_MW_BIND)
new_attrs.flags |= SIW_RDMA_BIND_ENABLED;
}
if (attr_mask & IB_QP_STATE) {
dprint(DBG_CM, "(QP%d): Desired IB QP state: %s\n",
QP_ID(qp), ib_qp_state_to_string[attr->qp_state]);
new_attrs.state = ib_qp_state_to_siw_qp_state[attr->qp_state];
if (new_attrs.state > SIW_QP_STATE_RTS)
qp->tx_ctx.tx_suspend = 1;
/* TODO: SIW_QP_STATE_UNDEF is currently not possible ... */
if (new_attrs.state == SIW_QP_STATE_UNDEF)
return -EINVAL;
siw_attr_mask |= SIW_QP_ATTR_STATE;
}
if (!attr_mask)
goto out;
down_write(&qp->state_lock);
rv = siw_qp_modify(qp, &new_attrs, siw_attr_mask);
up_write(&qp->state_lock);
out:
dprint(DBG_CM, "(QP%d): Exit with %d\n", QP_ID(qp), rv);
return rv;
}
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;
}