linux-kernel - Re: [PATCH] net: pppoe: implement GRO support

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Message-ID: <20250715164532.28305dc3@kernel.org>
Date: Tue, 15 Jul 2025 16:45:32 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Felix Fietkau <nbd@....name>
Cc: netdev@...r.kernel.org, Michal Ostrowski <mostrows@...thlink.net>,
 Andrew Lunn <andrew+netdev@...n.ch>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
 <pabeni@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: pppoe: implement GRO support

On Tue, 15 Jul 2025 12:44:24 +0200 Felix Fietkau wrote:
> Only handles packets where the pppoe header length field matches the exact
> packet length. Significantly improves rx throughput.
> 
> When running NAT traffic through a MediaTek MT7621 devices from a host
> behind PPPoE to a host directly connected via ethernet, the TCP throughput
> that the device is able to handle improves from ~130 Mbit/s to ~630 Mbit/s,
> using fraglist GRO.

Doesn't build:

ERROR: modpost: "inet_gro_receive" [drivers/net/ppp/pppoe.ko] undefined!
ERROR: modpost: "inet_gro_complete" [drivers/net/ppp/pppoe.ko] undefined!
-- 
pw-bot: cr