netdev - Re: [net-next-2.6 PATCH] ethtool: Add n-tuple string length to drvinfo and return it

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Date:	Fri, 26 Feb 2010 08:59:22 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
CC:	davem@...emloft.net, netdev@...r.kernel.org, gospo@...hat.com,
	Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@...el.com>
Subject: Re: [net-next-2.6 PATCH] ethtool: Add n-tuple string length to drvinfo
 and return it

On 02/26/2010 08:56 AM, Jeff Garzik wrote:
> However, perhaps consider the following patch for returning n-tuple
> count, for four reasons:
>
> 1) space in ethtool_drvinfo is limited
>
> 2) the patch below permits trivial string set addition, without
> ABI changes beyond adding a new ETH_SS_xxx constant.
>
> 3) the patch below permits direct access to ops->get_sset_count(),
> rather than implicit access via ethtool_drvinfo
>
> 4) ethtool_drvinfo interface does not permit indication of
> ops->get_sset_count() failure, versus returning zero value. The
> patch below does so, via output sset_mask.
>
> WARNING: this patch is compile-tested only.
>
> NOTE: I added a cosmetic fix to ETHTOOL_[GS]RXNTUPLE constants, making
> their indentation consistent with the rest of the list of constants.
>
> Signed-off-by: Jeff Garzik <jgarzik@...hat.com>


With, perhaps, a note like the attached as a reminder to folks about 
future additions.


View attachment "patch" of type "text/plain" (455 bytes)