RING_HAS_UNCONSUMED_RESPONSES
while (RING_HAS_UNCONSUMED_RESPONSES(&xnfp->xnf_tx_ring)) {
} while (RING_HAS_UNCONSUMED_RESPONSES(&xnfp->xnf_rx_ring));
if (!RING_HAS_UNCONSUMED_RESPONSES(uring)) {
(_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \
(_work_to_do) = RING_HAS_UNCONSUMED_RESPONSES(_r); \