From: Patrick Williams <patrick@stwcx.xyz>
To: Vernon Mauery <vernon.mauery@linux.intel.com>
Cc: zehra.ozdemir@inventron.com.tr, openbmc@lists.ozlabs.org,
"'M. Erhan Yigitbasi'" <erhan.yigitbasi@inventron.com.tr>
Subject: Re: Phosphor-ipmi-ipmb
Date: Fri, 16 Dec 2022 10:54:20 -0600 [thread overview]
Message-ID: <Y5yivH2dvcQATSV7@heinlein.taila677.ts.net> (raw)
In-Reply-To: <Y5jKp7C3tZKncA3P@mauery.jf.intel.com>
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On Tue, Dec 13, 2022 at 10:55:35AM -0800, Vernon Mauery wrote:
> On 08-Dec-2022 09:49 AM, zehra.ozdemir@inventron.com.tr wrote:
> >Hello,
> >
> >
> >
> >We are trying to create communication between BMC and the Host. We defined
> >an ipmb device from an i2c in dts and can barely see that /dev/ipmb-x is
> >created and ipmb.service is running. But we do not understand how is data
> >transfer provided Host to BMC yet. Is remote address in ipmb-channels.json
> >used for that reason? Also, do we need to add any driver to the host for
> >this?
>
> I am not aware of anyone using ipmb for a system interface. So far in
> OpenBMC, I have only heard of block transfer (BT) or keyboard controller
> style (KCS) system interfaces. I am guessing that by ipmb you are
> referring to SMBus System Interface or SSIF in the IPMI specification.
> Is that what you are referring to?
The Yosemite-v2 and Yosemite-v3.5 platforms in meta-facebook use IPMB to
provide the system interface. There is an IPMB communications path over
i2c to a uC (the "BIC"). That could potentially be used as a reference.
--
Patrick Williams
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next prev parent reply other threads:[~2022-12-16 16:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-08 6:49 Phosphor-ipmi-ipmb zehra.ozdemir
2022-12-13 18:55 ` Phosphor-ipmi-ipmb Vernon Mauery
2022-12-16 16:54 ` Patrick Williams [this message]
-- strict thread matches above, loose matches on Subject: below --
2019-01-24 20:45 phosphor-ipmi-ipmb Vijay Khemka
2019-01-25 15:05 ` phosphor-ipmi-ipmb James Feist
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