netdev - Re: [PATCH net-next] net: dsa: mv88e6xxx: avoid some redundant vtu load/purge operations

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Message-ID: <956f9821-199d-074d-9508-2bdcd12cf4bf@prevas.dk>
Date:   Tue, 23 Jul 2019 14:09:10 +0000
From:   Rasmus Villemoes <rasmus.villemoes@...vas.dk>
To:     Andrew Lunn <andrew@...n.ch>
CC:     Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Rasmus Villemoes <Rasmus.Villemoes@...vas.se>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next] net: dsa: mv88e6xxx: avoid some redundant vtu
 load/purge operations

On 23/07/2019 15.40, Andrew Lunn wrote:
> On Mon, Jul 22, 2019 at 11:37:26PM +0000, Rasmus Villemoes wrote:
>> We have an ERPS (Ethernet Ring Protection Switching) setup involving
>> mv88e6250 switches which we're in the process of switching to a BSP
>> based on the mainline driver. Breaking any link in the ring works as
>> expected, with the ring reconfiguring itself quickly and traffic
>> continuing with almost no noticable drops. However, when plugging back
>> the cable, we see 5+ second stalls.
> 
> Hi Rasmus
> 
> I would prefer Vivien reviews this patch. But he is away at the
> moment. Are you O.K. to wait a few days?

Sure, no rush.

Rasmus