[PATCH net] net: pcs: xpcs-rk: limit advertised interfaces

[Andrew Lunn]

> >Are there any registers which describe how the PCS was configured at
> >syntheses time?
> >
> >	Andrew
> 
> Hi Andrew,
> 
> Yes, looking at the `xpcs_identity` code, the core does probe different
> MMDs to get the rough type: PMA/PMD MMD for C73 and VEND2 MMD for C37.
> 
> However, even if we determine it's a C37 or C73 block, that only gives
> us the rough family, not the exact feature set.

You might want to try reaching out to Synopsys. There are sometimes
feature bits in VEND1/2 which list the exact configuration
synthesised.  And since it is a core part of the licensed IP, it
should be safe to trust it, independent of the platform it has been
integrated into.

      Andrew