From: roopa <roopa@cumulusnetworks•com>
To: Jiri Pirko <jiri@resnulli•us>
Cc: Viswanath Bandaru <vbandaru@broadcom•com>,
Florian Fainelli <f.fainelli@gmail•com>,
"sfeldma@gmail•com" <sfeldma@gmail•com>,
"netdev@vger•kernel.org" <netdev@vger•kernel.org>,
"linux@roeck-us•net" <linux@roeck-us•net>,
"andrew@lunn•ch" <andrew@lunn•ch>,
"gospo@cumulusnetworks•com" <gospo@cumulusnetworks•com>,
"siva.mannem.lnx@gmail•com" <siva.mannem.lnx@gmail•com>
Subject: Re: [PATCH net-next RFC 0/5] Add NTF_EXT_AGED to control FDB ageing in SW or HW
Date: Sat, 21 Feb 2015 10:31:11 -0800 [thread overview]
Message-ID: <54E8CEEF.2010200@cumulusnetworks.com> (raw)
In-Reply-To: <20150221155002.GA2092@nanopsycho.orion>
On 2/21/15, 7:50 AM, Jiri Pirko wrote:
> Sat, Feb 21, 2015 at 12:29:38PM CET, vbandaru@broadcom•com wrote:
>>> -----Original Message-----
>>>> I agree, in fact, most of the HW I have access to only has a global age
>>>> timer configuration knob. Is this configurable on a per-port basis for
>>>> higher end switches, or even maybe per-FDB entry?
>>> I'm currently not aware of any hw which does not have global age timer.
>>> But I believe that they will appear. The model that we have now, to
>>> propagate aging setting of bridge down is more general and should be ok.
>>>
>>> Drivers should probably take care of multi bridge setup with different aging
>>> setup. Maybe to find minimal time and print a warning?
>>>
>> Setting up the minimal time in such a scenario is good.
>>
>> Should we also consider the possibility bridges containing ports from different devices (and therefore different drivers) ? If that is a possibility, I think the bridge module should take responsibility of finding out the minimal time to pushing to all involved drivers.
> It is certainly possible to bridge ports from multiple switch devices.
> But that should not be a problem, because 1 bridge has 1 aging setup
> which will be passed to all port drivers.
>
> I believe that the only case which need to be resolved is multiple
> bridges over single switch device. And I believe that it should be
> handled in drivers because only drivers know what the hw is capable of
> (if it supports aging setup per port/bridge/global).
>
>>
I agree.
next prev parent reply other threads:[~2015-02-21 18:31 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-20 7:09 [PATCH net-next RFC 0/5] Add NTF_EXT_AGED to control FDB ageing in SW or HW sfeldma
2015-02-20 7:09 ` [PATCH net-next RFC 1/5] neighbour: add external aged flag sfeldma
2015-02-20 7:09 ` [PATCH net-next RFC 2/5] switchdev: add ntf_flags to FDB notifier sfeldma
2015-02-20 7:09 ` [PATCH net-next RFC 3/5] bridge: call external learn add if adding FDB entry with NTF_EXT_LEARNED set sfeldma
2015-02-20 7:09 ` [PATCH net-next RFC 4/5] bridge: let HW control FDB ageing by setting NTF_EXT_AGED sfeldma
2015-02-20 17:31 ` David Miller
2015-02-20 7:09 ` [PATCH net-next RFC 5/5] rocker: explicitly set SW ageing for rocker sfeldma
2015-02-20 9:46 ` Jiri Pirko
2015-02-20 14:56 ` Scott Feldman
2015-02-20 17:29 ` [PATCH net-next RFC 0/5] Add NTF_EXT_AGED to control FDB ageing in SW or HW roopa
2015-02-20 19:13 ` Florian Fainelli
2015-02-20 19:45 ` Guenter Roeck
2015-02-21 0:20 ` Viswanath Bandaru
2015-02-21 0:39 ` Guenter Roeck
2015-02-21 18:29 ` roopa
[not found] ` <CAE4R7bAPS1GZKaC4M6x9cqfTOkVju1+Po4KzanfSniEFX9oi1w@mail.gmail.com>
2015-02-25 14:31 ` Andrew Lunn
2015-02-25 16:43 ` Guenter Roeck
2015-02-25 17:31 ` B Viswanath
2015-02-25 18:39 ` Guenter Roeck
2015-02-25 18:51 ` B Viswanath
2015-02-25 19:15 ` Guenter Roeck
2015-02-25 19:33 ` B Viswanath
2015-02-25 20:03 ` Guenter Roeck
2015-02-25 17:29 ` David Miller
2015-02-21 11:03 ` Jiri Pirko
2015-02-21 11:29 ` Viswanath Bandaru
2015-02-21 15:50 ` Jiri Pirko
2015-02-21 17:20 ` Viswanath Bandaru
2015-02-21 18:31 ` roopa [this message]
2015-02-21 1:23 ` Siva Mannem
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