Access Intel ME IPMB from BMC

[Oskar Senft]

Hi Vijay

Thanks for the pointer!

I also found both https://github.com/Mellanox/ipmb-host and
https://github.com/openbmc/linux/blob/dev-5.4/drivers/char/ipmi/ipmb_dev_int.c
.

Is it right that with ipmbbridge I don't need either of them since
ipmbbridge uses the raw i2c dev?

Thanks
Oskar.

On Mon, Apr 20, 2020 at 2:12 PM Vijay Khemka <vijaykhemka at fb.com> wrote:

> Hi Oskar,
>
> You need to configure your ME channel in ipmb channel config file
> https://github.com/openbmc/ipmbbridge/blob/master/ipmb-channels.json
>
> And make sure ipmbbridge is running. Then you can send get device id
> command to ME from command line itself to test if everything is working.
>
>
>
> busctl call xyz.openbmc_project.Ipmi.Channel.Ipmb
> /xyz/openbmc_project/Ipmi/Channel/Ipmb org.openbmc.Ipmb sendRequest yyyyay
> 1 6 0 0x1 0
>
>
>
> Regards
>
> -Vijay
>
>
>
> *From: *openbmc <openbmc-bounces+vijaykhemka=fb.com at lists.ozlabs.org> on
> behalf of Oskar Senft <osk at google.com>
> *Date: *Saturday, April 18, 2020 at 6:47 PM
> *To: *OpenBMC Maillist <openbmc at lists.ozlabs.org>
> *Subject: *Access Intel ME IPMB from BMC
>
>
>
> Hi everyone
>
>
>
> I'm trying to find out how I can access the Intel ME via IPMB from the BMC
> (OpenBMC).
>
>
>
> From what I gathered, Intel ME's IPMB is on the PCH's SMLink0. I know this
> is connected to one of the SMBus modules on my AST2500. But what I can't
> find out is how I actually send commands there? I'm sure I'm missing a
> document that makes this obvious.
>
>
>
> Or is it as simple as dropping IPMI packets onto the bus?
>
>
>
> Is this by any chance already implemented in OpenBMC?
>
>
>
> Thanks for any hints!
>
>
>
> Oskar
>
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