tavor_cq_poll
status = tavor_cq_poll(state, cqhdl, wc_p, num_wc, &polled);
comm->tlc_status = tavor_cq_poll(lstate->tls_state,
int tavor_cq_poll(tavor_state_t *state, tavor_cqhdl_t cqhdl, ibt_wc_t *wc_p,