Re: [RFC] net: add TCP fraglist GRO support

From: Felix Fietkau
Date: Tue Apr 23 2024 - 08:23:53 EST


On 23.04.24 14:11, Eric Dumazet wrote:
On Tue, Apr 23, 2024 at 1:55 PM Felix Fietkau <nbd@xxxxxxxx> wrote:

In the world of consumer-grade WiFi devices, there are a lot of chipsets
with limited or nonexistent SG support, and very limited checksum
offload capabilities on Ethernet. The WiFi side of these devices is
often even worse. I think fraglist GRO is a decent fallback for the
inevitable corner cases.

What about netfilter and NAT ? Are they okay with NETIF_F_FRAGLIST_GRO already ?

Many of these devices are probably using NAT.

In my tests, nftables NAT works just fine, both with and without flowtable offloading. I didn't see anything in netfilter that would have a problem with this.

- Felix