On Thu Apr 15 2021, Jesper Dangaard Brouer wrote:
> On Thu, 15 Apr 2021 11:21:45 +0200
> Kurt Kanzenbach <k...@linutronix.de> wrote:
>
>> When using native XDP with the igb driver, the XDP frame data doesn't point 
>> to
>> the beginning of the packet. It's off by 16 bytes. Everything works as 
>> expected
>> with XDP skb mode.
>> 
>> Actually these 16 bytes are used to store the packet timestamps. Therefore, 
>> pull
>> the timestamp before executing any XDP operations and adjust all other code
>> accordingly. The igc driver does it like that as well.
>> 
>> Tested with Intel i210 card and AF_XDP sockets.
>
> Doesn't the i210 card use the igc driver?
> This change is for igb driver.

Nope. igb is for i210 and igc is for the newer Intel i225 NICs.

|01:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection 
(rev 03)
|[...]
|        Kernel driver in use: igb
|        Kernel modules: igb

Thanks,
Kurt

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