From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dimitris Michailidis <dm@chelsio.com>
Subject: Re: Misuse of LRO, how widespread
Date: Mon, 06 Dec 2010 13:15:42 -0800
Message-ID: <4CFD527E.7000706@chelsio.com>
References: <20101206121829.5b8c852e@nehalam>
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Cc: David Miller <davem@davemloft.net>,
	Olof Johansson <olof@lixom.net>,
	Ben Hutchings <bhutchings@solarflare.com>,
	Divy Le Ray <divy@chelsio.com>, netdev@vger.kernel.org
To: Stephen Hemminger <shemminger@vyatta.com>
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Stephen Hemminger wrote:
> I inspected all drivers in net-next to see which drivers are using
> LRO and which ones are broken. Most concerning is that Chelsio
> and Solarflare drivers ignore ETH_FLAG_LRO.
> 
> The ones that are using LRO but allow disabling it:
>   qlcnic, netxen, mv643, s2io, myi10ge, bnx2x, ixgbe, vmxnet3
> 
> One driver seems confused about LRO vs GRO:
>   mlx4 - comments about LRO and depends on LRO but driver is using GRO
> 
> Drivers with not using ethtool interface to disable LRO:
>   pasemi_mac, sfc, ehea, cxgb3, cxgb4

cxgb4 uses GRO, not LRO.