netdev - Re: [PATCH] v2 ethtool: remove support for ETHTOOL

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Date:	Thu, 09 Jun 2011 00:03:47 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Alexander Duyck <alexander.h.duyck@...el.com>
Cc:	davem@...emloft.net, jeffrey.t.kirsher@...el.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] v2 ethtool: remove support for ETHTOOL_GRXNTUPLE

On Wed, 2011-06-08 at 15:35 -0700, Alexander Duyck wrote:
> This change is meant to remove all support for displaying an ntuple as
> strings via ETHTOOL_GRXNTUPLE.  The reason for this change is due to the
> fact that multiple issues have been found including:
>  - Multiple buffer overruns for strings being displayed.
>  - Incorrect filters displayed, cleared filters with ring of -2 are displayed
>  - Setting get_rx_ntuple displays no rules if defined.
>  - Endianess wrong on displayed values.
>  - Hard limit of 1024 filters makes display functionality extremely limited
> 
> The only driver that had supported this interface was ixgbe.  Since it no
> longer uses the interface and due to the issues mentioned above I am
> submitting this patch to remove it.
> 
> v2:
> Updated based on comments from Ben Hutchings
>  - Left ETH_SS_NTUPLE_FILTERS in code but commented on it being deprecated
>  - Removed ethtool_rx_ntuple_list and ethtool_rx_ntuple_flow_spec_container
>  - Left ETHTOOL_GRXNTUPLE but commented it as deprecated
> 
> Also cleaned up set_rx_ntuple since there is no flow spec container to
> maintain we can drop all the code for the alloc and free of it and just
> return ops->set_rx_ntuple().
> Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Acked-by: Ben Hutchings <bhutchings@...arflare.com>

Ben.

-- 
Ben Hutchings, Senior Software Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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