qlnxr_prepare_sq_sges
ret = qlnxr_prepare_sq_sges(dev, qp, &rwqe->wqe_size, wr);
ret = qlnxr_prepare_sq_sges(dev, qp, &swqe->wqe_size, wr);
qlnxr_prepare_sq_sges(dev, qp, NULL, wr);