> v4:
> - Fix compile warning
>
> v3:
> - Change wrong PPS performance result 40% -> 80% in single
> core(Intel i3-12100)
> - Separate aq_nic_map_xdp() from aq_nic_map_skb()
> - Drop multi buffer packets if single buffer XDP is attached
> - Disable LRO when single buffer XDP is attached
> - Use xdp_get_{frame/buff}_len()
Hi Taehee, thanks for taking care of that!
Reviewed-by: Igor Russkikh <irusskikh@xxxxxxxxxxx>
A small notice about the selection of 3K packet size for XDP.
Its a kind of compromise I think, because with common 1.4K MTU we'll get wasted
2K bytes minimum per packet.
I was thinking it would be possible to reuse the existing page flipping technique
together with higher page_order, to keep default 2K fragment size.
E.g.
( 256(xdp_head)+2K(pkt frag) ) x 3 (flips) = ~7K
Meaning we can allocate 8K (page_order=1) pages, and fit three xdp packets into each, wasting only 1K per three packets.
But its just kind of an idea for future optimization.
Regards,
Igor
