Redfish OEM commands in OpenBMC - OpenBMC extensions to the Redfish standard

[Joseph Reynolds]

On 2019-04-16 14:02, Andrew Geissler wrote:
> Greetings,
> 
> As more and more of us are implementing Redfish within OpenBMC we are 
> starting
> to run into situations where the function we need to implement is not 
> available
> in the current Redfish schemas.
> 
> We've been joining DMTF workgroups and starting to get familiar with 
> the process
> but, if OpenBMC upstreaming is considered slow, it's looking like 
> upstreaming
> to the DMTF could be even slower.
> 
> So my question is, are we taking a no OEM policy within OpenBMC? Or are 
> we going
> to take a more flexible approach. Similar to openbmc/linux, as long as 
> you're
> working upstream with the DMTF on your changes, OEM would be 
> acceptable?

Good questions!

A third approach: At the OpenBMC project level, we document, discuss, 
and agree on "OpenBMC extensions to the Redfish standard".  Once 
approved, we can simultaneously (a) implement the extensions and (b) 
attempt to upstream them to DMTF.  ==> If the extensions are accepted, 
celebrate!  If not, ... we'll have more work.

- Joseph

> From what I've seen so far, it looks like a lot of companies have gone 
> the OEM
> route initially. They then use that experience to guide the discussion 
> with the
> DMTF workgroups.
> 
> There could be some gray areas. For example, I want to add a Priority
> property to the UpdateService [1]. Maybe this would be ok to carry as 
> an OEM
> for a bit? Adriana wants to propose a whole new backup and restore 
> design [2].
> Maybe that needs a bit more traction upstream to ensure it's going in 
> the right
> direction for something DMTF would approve first? If we start limiting 
> ourselves
> as a community on what DMTF has approved, I think we're going to 
> struggle to
> deliver certain new functions.
> 
> Andrew
> 
> [1] https://github.com/DMTF/Redfish/issues/3357 (can only see with DMTF 
> access)
> [2] https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/18163