netdev - Re: [patch net-next v3 11/12] mlxsw: spectrum_router: Request a dump of FIB tables during init

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Message-ID: <20161202093429.vo3cehjwxu5b2zpx@splinter>
Date:   Fri, 2 Dec 2016 11:34:29 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     Hannes Frederic Sowa <hannes@...essinduktion.org>
Cc:     Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org,
        davem@...emloft.net, idosch@...lanox.com, eladr@...lanox.com,
        yotamg@...lanox.com, nogahf@...lanox.com, arkadis@...lanox.com,
        ogerlitz@...lanox.com, roopa@...ulusnetworks.com,
        dsa@...ulusnetworks.com, nikolay@...ulusnetworks.com,
        andy@...yhouse.net, vivien.didelot@...oirfairelinux.com,
        andrew@...n.ch, f.fainelli@...il.com, alexander.h.duyck@...el.com,
        kaber@...sh.net
Subject: Re: [patch net-next v3 11/12] mlxsw: spectrum_router: Request a dump
 of FIB tables during init

On Fri, Dec 02, 2016 at 12:27:25AM +0100, Hannes Frederic Sowa wrote:
> I really like that. Would you mind adding this?

Yes. I'll send another version to Jiri today after testing and hopefully
we can submit today / tomorrow. I think Linus is still undecided about
-rc8 and I would like to get this in 4.10.

> >> Quick follow-up question: How can I quickly find out the hw limitations
> >> via the kernel api?
> > 
> > That's a good question. Currently, you can't. However, we already have a
> > mechanism in place to read device's capabilities from the firmware and
> > we can (and should) expose some of them to the user. The best API for
> > that would be devlink, as it can represent the entire device as opposed
> > to only a port netdev like other tools.
> > 
> > We're also working on making the pipeline more visible to the user, so
> > that it would be easier for users to understand and debug their
> > networks. I believe a colleague of mine (Matty) presented this during
> > the last netdev conference.
> 
> Thanks, I will look it up!

Found it:
https://www.youtube.com/watch?v=gwzaKXWIelc&feature=youtu.be&list=PLrninrcyMo3IkTvpvM2LK6gn4NdbFhI0G&t=6892