IPOIB_CM_IETF_ID
req.service_id = cpu_to_be64(IPOIB_CM_IETF_ID | qpn);
cpu_to_be64(IPOIB_CM_IETF_ID | priv->qp->qp_num));
IPOIB_CM_IETF_ID | priv->qp->qp_num);