Storing host data on the BMC

[Sunitha Harish]

Hi Patrick,

Thanks for sharing the pointers. I was aware that there was work going 
on in this area. So was looking for your and Surya's inputs on this.

I will go through these designs from my use-case perspective.

Thanks & regards,
Sunitha


On 11-05-2020 17:37, Patrick Williams wrote:
> Hello Sunitha,
>
> Intel has already made significant progress on this problem domain and
> we seem to be fairly converged on the design direction [1,2].  Have you
> read through their design proposal?  Are there any oversights in their
> design that would affect your needs?
>
> Their design has been on-going for months now.  I don't think it is
> appropriate to start from scratch on the design discussions unless there
> is something fundamentally broken about their direction.
>
> 1. https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/29320
> 2. https://gerrit.openbmc-project.xyz/c/openbmc/phosphor-dbus-interfaces/+/18242
>
> I thought there was even some implementation started in bmcweb for this
> feature.
>
> On Mon, May 11, 2020 at 11:44:35AM +0530, Sunitha Harish wrote:
>> Hi,
>>
>> Gentle reminder for the feedback.
>>
>> Thanks & regards,
>> Sunitha
>>
>> On 06-05-2020 12:53, Sunitha Harish wrote:
>>> Hi Deepak,
>>>
>>> Please suggest which other approach you think is better here for
>>> Origin attribute?
>>>
>>> When the interface is set as DHCPEnabled=true ; similar to the Origin
>>> attribute , the IP address, SubnetMask and Gateway will be set by the
>>> host. So we would need to consider this usecase also as a candidate
>>> for the new approach.
>>>
>>> Thanks & regards,
>>> Sunitha
>>>
>>>
>>> On 05-05-2020 12:29, Deepak Kodihalli wrote:
>>>> On 05/05/20 12:12 pm, Sunitha Harish wrote:
>>>>> Hi Deepak,
>>>>>
>>>>> As mentioned , the Origin is the property which will be set by the
>>>>> host once the IP address is applied to its interface. Its a
>>>>> read-only property for the out-of-band user. But its a closely
>>>>> coupled - related attribute on the host setting/BIOS object.
>>>> Hi Sunitha,
>>>>
>>>> What I'm trying to say is - we shouldn't make this coupling. The BIOS
>>>> settings table is a group of attributes that can alter the default
>>>> behavior of the host firmware. The Origin property you describe
>>>> doesn't fit that description.
>>>>
>>>> The host "sets" several things for the BMC, for eg the host firmware
>>>> can tell us functional/presence states of FRUs which the host has
>>>> access to. Everything that the host "sets" this way isn't a BIOS
>>>> attribute. Once you decouple this, I believe we can think about
>>>> options other than the two you have suggested - since both of them
>>>> involve making the Origin property seem like a BIOS attribute, which
>>>> it clearly is not.
>>>>
>>>> Thanks,
>>>> Deepak