Subject: Re: [PATCH net-next 0/3] fbnic: Support larger io_uring zcrx buffers

From: Jakub Kicinski <[email-masked]>
Date: Mon, 25 May 2026 11:06:13 -0700

On Mon, 25 May 2026 13:08:59 +0200 Björn Töpel wrote:
> The driver relies on the generic XDP frag coalescing
> (xdp_buff_add_frag()). So, adjacent 4K completions are extended into
> the same frag. IOW, GRO should see coalesced skb frab, rather than one
> graf per HW BDQ frag

🙂‍↔️️ I'm taking about coalescing across packets.
You should enable RSS-hash gated payload packing, and then we should be
able to combine frags from multiple packets. But only GRO can do that
safely.