On Fri, 27 Mar 2020 11:17:55 +0100 Michal Krawczyk <mk at semihalf.com> wrote: > + /* ENA isn't supporting buffers smaller than 1400 bytes */ > + buffer_size = mp->elt_size - sizeof(struct rte_mbuf) - > + RTE_PKTMBUF_HEADROOM; This should use rte_pktmbuf_data_room_size(mp) - RTE_PKTMBUF_HEADROOM