rib_reg_mem
status = rib_reg_mem(hca, adsp, buf, buflen, 0, &mr_hdl, &mr_desc);
static rdma_stat rib_reg_mem(rib_hca_t *, caddr_t adsp, caddr_t, uint_t,
status = rib_reg_mem(hca, adsp, buf, buflen, 0, &mr_hdl, &mr_desc);
status = rib_reg_mem(hca, adsp, buf, buflen, 0, &mr_hdl, &mr_desc);