netdev - Re: consistency for statistics with XDP mode

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Date:   Thu, 22 Nov 2018 09:26:53 +0100
From:   Toke Høiland-Jørgensen <toke@...e.dk>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        "pstaszewski\@itcare.pl" <pstaszewski@...are.pl>,
        "netdev\@vger.kernel.org" <netdev@...r.kernel.org>,
        "dsahern\@gmail.com" <dsahern@...il.com>
Cc:     "davem\@davemloft.net" <davem@...emloft.net>,
        "jasowang\@redhat.com" <jasowang@...hat.com>,
        "brouer\@redhat.com" <brouer@...hat.com>,
        "mst\@redhat.com" <mst@...hat.com>
Subject: Re: consistency for statistics with XDP mode

Saeed Mahameed <saeedm@...lanox.com> writes:

>> > I'd say it sounds reasonable to include XDP in the normal traffic
>> > counters, but having the detailed XDP-specific counters is quite
>> > useful
>> > as well... So can't we do both (for all drivers)?
>> > 
>
> What are you thinking ? 
> reporting XDP_DROP in interface dropped counter ?
> and XDP_TX/REDIRECT in the TX counter ?
> XDP_ABORTED in the  err/drop counter ?
>
> how about having a special XDP command in the .ndo_bpf that would query
> the standardized XDP stats ?

Don't have any strong opinions on the mechanism; just pointing out that
the XDP-specific stats are useful to have separately as well :)

-Toke