Reg Packet Type Issue in Intel X710 NIC

[Stephen Hemminger]

On Mon, 16 Oct 2023 22:55:39 +0530
Harrish SJ <harrish at aviznetworks.com> wrote:

> Thanks much Stephen for your inputs. Let me check the flags and get back.
> Any inputs on GTP Packet type as UNKNOWN would be much helpful. 
> Thanks in advance,
> 
> Regards and Thanks,
> Harrish.S.J


Packet type recognition in either done in software (slow) or hardware.
The hardware recognition is limited by what that NIC is able to recognize.
I suspect most NIC's just look at ether type and maybe IP proto fields
while processing packet.

In any case packet type is not very reliable across NIC vendors.
If you really want to identify packets either do it in SW or use
rte_flow if NIC supports it.