for (i = rxq->completed; i != rxq->added; ++i) {
rxd = &rxq->sw_ring[i & rxq->ptr_mask];
rte_mempool_put(rxq->refill_mb_pool, rxd->mbuf);
rxd->mbuf = NULL;
}
for (i = rxq->completed; i != rxq->added; ++i) {
rxd = &rxq->sw_ring[i & rxq->ptr_mask];
rte_mempool_put(rxq->refill_mb_pool, rxd->mbuf);
rxd->mbuf = NULL;
}