netdev - Re: [PATCH net] xfrm: Force software GSO only in tunnel mode

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Message-Id: 
 <174248223302.1795325.5848574485105137769.git-patchwork-notify@kernel.org>
Date: Thu, 20 Mar 2025 14:50:33 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Mark Bloch <mbloch@...dia.com>
Cc: steffen.klassert@...unet.com, herbert@...dor.apana.org.au,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 horms@...nel.org, chopps@...n.net, cratiu@...dia.com, ychemla@...dia.com,
 wangfe@...gle.com, lucien.xin@...il.com, dtatulea@...dia.com,
 netdev@...r.kernel.org
Subject: Re: [PATCH net] xfrm: Force software GSO only in tunnel mode

Hello:

This patch was applied to netdev/net.git (main)
by Steffen Klassert <steffen.klassert@...unet.com>:

On Mon, 17 Mar 2025 12:32:05 +0200 you wrote:
> From: Cosmin Ratiu <cratiu@...dia.com>
> 
> The cited commit fixed a software GSO bug with VXLAN + IPSec in tunnel
> mode. Unfortunately, it is slightly broader than necessary, as it also
> severely affects performance for Geneve + IPSec transport mode over a
> device capable of both HW GSO and IPSec crypto offload. In this case,
> xfrm_output unnecessarily triggers software GSO instead of letting the
> HW do it. In simple iperf3 tests over Geneve + IPSec transport mode over
> a back-2-back pair of NICs with MTU 1500, the performance was observed
> to be up to 6x worse when doing software GSO compared to leaving it to
> the hardware.
> 
> [...]

Here is the summary with links:
  - [net] xfrm: Force software GSO only in tunnel mode
    https://git.kernel.org/netdev/net/c/0aae2867aa60

You are awesome, thank you!
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