eea_ering_cq_get_desc
ret = read_poll_timeout(eea_ering_cq_get_desc, cdesc, cdesc, 10,
void *eea_ering_cq_get_desc(const struct eea_ring *ering);
desc = eea_ering_cq_get_desc(rx->ering);
desc = eea_ering_cq_get_desc(tx->ering);