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.

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