Re: XDP multi-buffer and AF_XDP

>
> Hi,
> We are very interested in receiving jumbo frames (> 8000 bytes) over
> AF_XDP. Does XDP multi-buffer support XDP_REDIRECT with AF_XDP? What
> about in zero-copy mode?
>
> Cheers,
> Kal

Looking into this more I found this comment in the mlx5 driver:

/* Don't enable multi buffer on XDP_REDIRECT SQ, as it's not yet
* supported by upstream, and there is no defined trigger to allow
* transmitting redirected multi-buffer frames.
*/

So at least mlx5 does not yet support XDP multi-buffer with
XDP_REDIRECT. What "upstream" support is required to get XDP_REDIRECT
to work with XSKs?

Kal