vioif_reclaim_used_tx
num_reclaimed = vioif_reclaim_used_tx(vif);
(void) vioif_reclaim_used_tx(vif);
(void) vioif_reclaim_used_tx(vif);
if (vioif_reclaim_used_tx(vif) != 0) {
(void) vioif_reclaim_used_tx(vif);