Processing Jumbo Packets via AF_XDP Sockets

Processing Jumbo Packets via AF_XDP Sockets

[Tomas Jansky]

Hi,

I came across a year-old thread about multipacket buffer support in AF_XDP (https://www.spinics.net/lists/xdp-newbies/msg02212.html).

My company is very interested in the possibility of processing jumbo packets via AF_XDP socket with Intel X710 and Mellanox ConnectX-5 cards, so I wanted to ask about the current status of multipacket buffer support in AF_XDP sockets and also the possibility of using huge pages for UMEM with unaligned chunk flag to achieve the same goal.

Could we expect any of these features to be supported in the nearby future? Let's say a year from now.

Thanks for any information,
Tomas

Re: Processing Jumbo Packets via AF_XDP Sockets

[Maciej Fijalkowski]

On Wed, May 31, 2023 at 01:10:07PM +0000, Tomas Jansky wrote:
> Hi,
> 
> I came across a year-old thread about multipacket buffer support in
> AF_XDP (https://www.spinics.net/lists/xdp-newbies/msg02212.html).
> 
> My company is very interested in the possibility of processing jumbo
> packets via AF_XDP socket with Intel X710 and Mellanox ConnectX-5 cards,
> so I wanted to ask about the current status of multipacket buffer
> support in AF_XDP sockets and also the possibility of using huge pages
> for UMEM with unaligned chunk flag to achieve the same goal.
> 
> Could we expect any of these features to be supported in the nearby
> future? Let's say a year from now.

AF_XDP multi-buffer support is on mailing lists now:
https://lore.kernel.org/bpf/20230529155024.222213-1-maciej.fijalkowski@intel.com/T/

you already can try this out on your side but for zero-copy currently this
patchset only enables ice driver. We will follow up with i40e (X710)
support.