mbp1 = vld1q_u64((uint64_t *)&sw_ring[pos]);
/* B.2 copy 2 mbuf point into rx_pkts */
vst1q_u64((uint64_t *)&rx_pkts[pos], mbp1);
mbp1 = vld1q_u64((uint64_t *)&sw_ring[pos]);
/* B.2 copy 2 mbuf point into rx_pkts */
vst1q_u64((uint64_t *)&rx_pkts[pos], mbp1);