Re: [PATCH net-next 2/9] ethtool: Expand Ethernet Power Equipment with PoE alongside PoDL

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> > However, everything not PoDL PSE seems to be clause 33. So how about:
> > 
> > 	enum ethtool_podl_pse_admin_state podl_admin_control;
> > 	enum ethtool_c33_pse_admin_state c33_admin_control;  
> > 
> > At least inside the kernel we use c22, c45, c37 etc. I'm not sure they
> > are visible to userspace, but if we don't have a better name, maybe we
> > have to use c33 in userspace as well.
> > 
> > I do think naming like this makes it clear we are talking about two
> > parallel technologies, not a generic layer and then extensions for
> > podl.
> > 
> > What do you think?
> 
> If we decide to add a prefix, "c33" is precise but less easily understandable,
> why not using simply "poe" prefix?

I suspect poe has the exact opposite problem, its too imprecise. Its
too much of a marketing name, with no clear meaning. It could even be
some people call podl poe.

To some extent, this is a user space UX problem. We can be precises in
the kernel and the kAPI. What ethtool decides to show to the user
could be different. Although it basically is the same problem.

Do you have ethtool patches? What does the output look like?  Oleksij
did say a hybrid could be possible, so we probably want ethtool to
group these properties together and make it clear what is PoDL and
!PoDL.

> Maybe as POE were originally PMDI you prefer to use c33 which won't change over
> time? 
> 
> Should I also modify the content of the enum?
> ETHTOOL_PSE_ADMIN_STATE_* to ETHTOOL_C33_PSE_ADMIN_*
> ETHTOOL_PSE_PW_D_STATUS_* to ETHTOOL_C33_PSE_PW_D_STATUS_*

Yes. That will help avoid getting PODL and C33 properties missed up.

     Andrew




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