linux-kernel - Re: [PATCH V3 net-next 1/4] net: bridge: add fdb flag to extent locked port feature

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Message-ID: <CAKUejP4P6-5gYg2owdbcNLKwYvsimg6L-Y_izUxfq=Uz=K_JDg@mail.gmail.com>
Date:   Fri, 8 Jul 2022 08:38:31 +0200
From:   Hans S <schultz.hans@...il.com>
To:     Nikolay Aleksandrov <razor@...ckwall.org>
Cc:     Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>, Jiri Pirko <jiri@...nulli.us>,
        Ivan Vecera <ivecera@...hat.com>,
        Roopa Prabhu <roopa@...dia.com>, Shuah Khan <shuah@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Ido Schimmel <idosch@...dia.com>, linux-kernel@...r.kernel.org,
        bridge@...ts.linux-foundation.org, linux-kselftest@...r.kernel.org
Subject: Re: [PATCH V3 net-next 1/4] net: bridge: add fdb flag to extent
 locked port feature

On Thu, Jul 7, 2022 at 4:08 PM Nikolay Aleksandrov <razor@...ckwall.org> wrote:
>
> On 07/07/2022 00:01, Nikolay Aleksandrov wrote:
> > On 06/07/2022 23:21, Vladimir Oltean wrote:
> >> On Wed, Jul 06, 2022 at 10:38:04PM +0300, Nikolay Aleksandrov wrote:
> [snip]
> > I already said it's ok to add hard configurable limits if they're done properly performance-wise.
> > Any distribution can choose to set some default limits after the option exists.
> >
>
> Just fyi, and to avoid duplicate efforts, I already have patches for global and per-port software
> fdb limits that I'll polish and submit soon (depending on time availability, of course). If I find
> more time I might add per-vlan limits as well to the set. They use embedded netlink attributes
> to config and dump, so we can easily extend them later (e.g. different action on limit hit, limit
> statistics etc).
>

Sounds good, I will just limit the number of locked entries in the
driver as they are not controllable from the bridge. :-)