On Mon, 8 Jan 2024 19:07:20 +0800 (CST) 钟 <gdsgsx2...@163.com> wrote:
> Hi All, > > > Recently I debug ovs-dpdk with AF_PACKET mode. When IP fragment packets are > received via DPDK, the IP fragment packets are reassembled by DPDK. After > reassembly, the packet length is over 1518. They are discarded by OVS because > of oversize packets. > > > I don't understandy why PACKET_FLAG_DEFRAG is set for AF_PACKET mode. > > Not sure, but it looks like the af_packet wants to hash packets for fanout. Hashin of fragments won't work correctly, and packet will arrive on different queues if fragmented.