netdev - Re: [PATCH net-next v2 2/2] enic: Add ethtool support to show classifier filters added by the driver

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Date:	Mon, 22 Sep 2014 03:17:29 +0530 (IST)
From:	Govindarajulu Varadarajan <_govind@....com>
To:	Ben Hutchings <ben@...adent.org.uk>
cc:	Govindarajulu Varadarajan <_govind@....com>, davem@...emloft.net,
	netdev@...r.kernel.org, ssujith@...co.com, benve@...co.com
Subject: Re: [PATCH net-next v2 2/2] enic: Add ethtool support to show
 classifier filters added by the driver

On Sat, 6 Sep 2014, Ben Hutchings wrote:

> On Mon, 2014-07-21 at 17:22 +0530, Govindarajulu Varadarajan wrote:
>> This patch impliments ethtool_ops->get_rxnfc() to display the classifier
>> filter added by the driver.
> [...]
>
> ARFS and ethtool RXNFC are two different interfaces for setting filters
> and they shouldn't be confused with each other.
>
> In the sfc driver, I made the filters inserted through each interface
> invisible from the other.  The mlx4_en driver also appears to keep the
> two sets of filters separate.
>
> I can see that it is useful to be able to find out which filters have
> been inserted through ARFS, but it should be possible to distinguish
> them from those inserted through RXNFC.  Please don't include those
> filters when ETHTOOL_GRXCLSRLCNT or ETHTOOL_GRXCLSRLALL are used.
>
> Either add new command numbers for getting ARFS filters (the same
> structures will do), or define some kind of extension flag for this
> purpose.
>

Will work on adding new ethtool cmd with same infrastructure as RXNFC for
displaying filters added by ARFS, removing existing get_rxnfc for enic and
use new ethtool cmd.

Thanks for your feedback.
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