netdev - Re: [PATCH net v2] gso: Update tunnel segmentation to support Tx checksum offload

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Date:	Wed, 10 Jul 2013 19:37:03 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Alexander Duyck <alexander.h.duyck@...el.com>
Cc:	Dmitry Kravkov <dmitry@...adcom.com>, netdev@...r.kernel.org,
	stephen@...workplumber.org, pshelar@...ira.com,
	joseph.gasparakis@...el.com, jesse@...ira.com,
	Eilon Greenstein <eilong@...adcom.com>
Subject: Re: [PATCH net v2] gso: Update tunnel segmentation to support Tx
 checksum offload

On Wed, 2013-07-10 at 19:30 -0700, Alexander Duyck wrote:

> 
> It was my understanding that the code for enabling TSO for encapsulated
> frames was good as Joseph has been working on it and testing it for
> i40e.  I'm assuming if you turn off TSO then the GSO and Tx checksum are
> working correctly?  I just want to make sure the issue you are seeing
> isn't in any way related to my patch.

Disabling TSO is solving the issue, and your patch solves the csum
performance issue.

I would like to fully understand the problems before acknowledging your
patch, if you do not mind ;)



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