netdev - Re: [PATCH net] bnx2x: really disable TPA if 'disable

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Date:	Mon, 27 Apr 2015 23:14:21 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	Yuval.Mintz@...gic.com
Cc:	mschmidt@...hat.com, netdev@...r.kernel.org,
	Dmitry.Kravkov@...gic.com, Ariel.Elior@...gic.com
Subject: Re: [PATCH net] bnx2x: really disable TPA if 'disable_tpa' option
 is set

From: Yuval Mintz <Yuval.Mintz@...gic.com>
Date: Mon, 27 Apr 2015 18:15:44 +0000

>>> bnx2x's 'disable_tpa=1' module option is not respected properly and TPA
>>> (transparent packet aggregation) remains enabled. Even though the
>>> module option causes LRO to be disabled, TPA is enabled in GRO mode.
>>>
>>> Additionally, disabling GRO via ethtool then has no effect. One can
>>> still observe tpa_* statistics increase and large packets being received
>>> in tcpdump.
>>>
>>> The bug was an unintended consequence of commit aebf6244cd39 "bnx2x: Be
>>> more forgiving toward SW GRO".
>>>
>>> Fix it by following the bp->disable_tpa flag when initializing fp's.
>>>
>>> Signed-off-by: Michal Schmidt <mschmidt@...hat.com>
>>
>>Applied, thanks.
> 
> Michal - thanks, but Dave -is it possible you gave us only 2.5 hours to
> review this one?

You'll need to send me a revert or changes relative to this one as
the commit is not only permanent when it reaches my tree, it's also
made it's way into Linus's tree now as well.
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