Re: [PATCH v2 net-next 05/26] enetc: implement generic XDP stats callbacks

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From: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Date: Tue, 23 Nov 2021 17:09:20 +0000

> On Tue, Nov 23, 2021 at 05:39:34PM +0100, Alexander Lobakin wrote:
> > Similarly to dpaa2, enetc stores 5 per-channel counters for XDP.
> > Add necessary callbacks to be able to access them using new generic
> > XDP stats infra.
> >
> > Signed-off-by: Alexander Lobakin <alexandr.lobakin@xxxxxxxxx>
> > Reviewed-by: Jesse Brandeburg <jesse.brandeburg@xxxxxxxxx>
> > ---
> 
> Reviewed-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>

Thanks!

> These counters can be dropped from ethtool, nobody depends on having
> them there.

Got it, thanks. I'll remove them in v3 or, in case v2 gets accepted,
will send a follow-up patch(es) for removing redundant Ethtool
stats.

> Side question: what does "nch" stand for?

"The number of channels". I was thinking of an intuitial, but short
term, as get_xdp_stats_channels is too long and breaks Tab aligment
of tons of net_device_ops across the tree.
It was "nqs" /number of queues/ previously, but we usually use term
"queue" referring to one-direction ring, in case of these stats and
XDP in general "queue pair" or simply "channel" is more correct.

Thanks,
Al



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