From: Guenter Roeck <linux-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
To: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Gerlando Falauto
<gerlando.falauto-SkAbAL50j+5BDgjK7y7TUQ@public.gmane.org>,
Jean Delvare <jdelvare-l3A5Bk7waGM@public.gmane.org>,
Martin Belanger
<martin.belanger-Ir6+u9MVKBtBDgjK7y7TUQ@public.gmane.org>,
Rodolfo Giometti
<giometti-AVVDYK/kqiJWk0Htik3J/w@public.gmane.org>,
Michael Lawnick <ml.lawnick-Mmb7MZpHnFY@public.gmane.org>,
Jeroen De Wachter
<jeroen.de.wachter-CNXmb7IdZIWZIoH1IeqzKA@public.gmane.org>
Subject: Re: [PATCH] i2c: mux: create proper topology in sysfs
Date: Tue, 04 Nov 2014 06:16:37 -0800 [thread overview]
Message-ID: <5458DFC5.1010101@roeck-us.net> (raw)
In-Reply-To: <20141104073306.GB1887@katana>
On 11/03/2014 11:33 PM, Wolfram Sang wrote:
>>> What is your muxing setup?
>>>
>> Complicated ;-).
>
> ...
>
> Ooooookay... well, for testing these patches, your setup is absolutely
> awesome, of course :D May I ask what you are doing with that amount of
> I2C?
>
The HW folks are trying to have one bus per device. So a card with 48x10GE
needs 48 I2C busses, plus one or more busses for its other devices.
Some of the HW tends to block its I2C bus if looked at in a wrong way,
so that isn't actually too bad. The bus master selectors let either
one of the main controller CPUs or the CPU on a line card have access
to the bus.
Guenter
next prev parent reply other threads:[~2014-11-04 14:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-02 20:40 [PATCH] i2c: mux: create proper topology in sysfs Wolfram Sang
[not found] ` <1414960809-16860-1-git-send-email-wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>
2014-11-03 20:39 ` Guenter Roeck
2014-11-03 20:55 ` Guenter Roeck
[not found] ` <20141103205534.GA18937-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2014-11-03 21:02 ` Wolfram Sang
2014-11-03 22:18 ` Guenter Roeck
[not found] ` <20141103221850.GA16026-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2014-11-04 7:33 ` Wolfram Sang
2014-11-04 9:07 ` Danielle Costantino
[not found] ` <CAAVjN7dPet_nBHcQzPYknfiWnf1hD5d5NAJcrNEKKJHYHcBNkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-10 20:57 ` Jean Delvare
[not found] ` <20141110215704.07d7ca1d-R0o5gVi9kd7kN2dkZ6Wm7A@public.gmane.org>
2014-11-12 12:35 ` Danielle Costantino
2014-11-04 14:16 ` Guenter Roeck [this message]
2014-11-03 22:49 ` Guenter Roeck
[not found] ` <20141103224908.GA18594-0h96xk9xTtrk1uMJSBkQmQ@public.gmane.org>
2014-11-04 14:33 ` Wolfram Sang
2014-11-04 14:46 ` Guenter Roeck
2014-11-05 14:26 ` Guenter Roeck
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