Re: [PATCH v1 net-next] net: dsa: qca: ar9331: add ethtool stats support

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On Tue, 17 Nov 2020 02:10:05 +0200 Vladimir Oltean wrote:
> On Mon, Nov 16, 2020 at 04:02:13PM -0800, Jakub Kicinski wrote:
> > For a while now we have been pushing back on stats which have a proper
> > interface to be added to ethtool -S. So I'd expect the list of stats
> > exposed via ethtool will end up being shorter than in this patch.  
> 
> Hmm, not sure if that's ever going to be the case. Even with drivers
> that are going to expose standardized forms of counters, I'm not sure
> it's going to be nice to remove them from ethtool -S.

Not remove, but also not accept adding them to new drivers.

> Testing teams all
> over the world have scripts that grep for those. Unfortunately I think
> ethtool -S will always remain a dumping ground of hell, and the place
> where you search for a counter based on its name from the hardware block
> guide as opposed to its standardized name/function. And that might mean
> there's no reason to not accept Oleksij's patch right away. Even if he
> might volunteer to actually follow up with a patch where he exposes the
> .ndo_get_stats64 from DSA towards drivers, as well as implements
> .ndo_has_offload_stats and .ndo_get_offload_stats within DSA, that will
> most likely be done as separate patches to this one, and not change in
> any way how this patch looks.




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