RE: [PATCH net-next 10/13] net: mvpp2: reset the XPCS while reconfiguring the serdes lanes

[Stefan Chulski]

> On Fri, Feb 15, 2019 at 04:32:38PM +0100, Antoine Tenart wrote:
> > The documentation advises to set the XPCS in reset while reconfiguring
> > the serdes lanes. This seems to be a good thing to do, but the PPv2
> > driver wasn't doing it. This patch fixes it.
> 
> Hmm.  That statment seems to have some ambiguity in it - we do two
> "reconfigurations" - one may be upon initialisation, where the lane is already
> configured for 10Gbase-KR, and we're re-initialising it for the same mode.
> The other case is when we're switching between 10Gbase-KR and SGMII, or
> as will be the case with 2.5G support for the Alaska PHYs, 2500base-X.

Exist one mode that we should add to PPv2&COMPHY 5Gbase-KR(5GBASE-T).

Stefan,
Best Regards.