netdev - Re: [net-next] i40e: enable fdb add code, remove unused code

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Message-ID: <1416635624.2280.107.camel@jtkirshe-mobl>
Date:	Fri, 21 Nov 2014 21:53:44 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	Or Gerlitz <gerlitz.or@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Linux Netdev List <netdev@...r.kernel.org>,
	nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com
Subject: Re: [net-next] i40e: enable fdb add code, remove unused code

On Fri, 2014-11-21 at 06:50 +0200, Or Gerlitz wrote:
> On Fri, Nov 21, 2014 at 2:30 AM, Jeff Kirsher
> <jeffrey.t.kirsher@...el.com> wrote:
> > From: Jesse Brandeburg <jesse.brandeburg@...el.com>
> 
> > The fdb_add functionality is important to i40e because it is needed
> > for a workaround to allow bridges to work correctly on the i40e
> > hardware.
> 
> Can you please shed more light on the precise problem and solution? I
> wonder if one or two of them are generic... so might can/need land
> somewhere upper...

This is not a generic problem, it is an errata related to source pruning
that can be worked around by adding VSI MAC addresses to the HW filters.

Information about it can be found in the driver readme.

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