linux-kernel - Re: [PATCH net-next v2 06/10] net: dsa: lan9303: added sysfs node swe_bcst

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Date:   Thu, 27 Jul 2017 15:32:02 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Egil Hjelmeland <privat@...l-hjelmeland.no>, corbet@....net,
        vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        davem@...emloft.net, kernel@...gutronix.de,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 06/10] net: dsa: lan9303: added sysfs node
 swe_bcst_throt

Thu, Jul 27, 2017 at 03:26:25PM CEST, andrew@...n.ch wrote:
>> Yes, this setting can be used to reduce effect of broadcast storms.
>
>So one way to solve this is to teach the software bridge about
>broadcast storm control. Put some rate limiting into its broadcast
>flood handling. Then add a switchdev call which passes this down into
>the switch.
>
>Or look at doing it via TC. It is just a filter selecting broadcast
>traffic and applying some shaping, which is what TC is all about.

Ack. This is probably the way to do this. Definitelly no sysfs knob...

>
>Generic solutions which can be used by all switches are likely to be
>accepted.
>
>	Andrew