[PATCH net-next 1/2] net: stmmac: enable 2.5Gbps link speed

[Voon, Weifeng]

> > +	/* 2.5G mode only support 2500baseT full duplex only */
> > +	if (priv->plat->has_gmac4 && priv->plat->speed_2500_en) {
> > +		phylink_set(mac_supported, 2500baseT_Full);
> > +		phylink_set(mask, 10baseT_Half);
> > +		phylink_set(mask, 10baseT_Full);
> > +		phylink_set(mask, 100baseT_Half);
> > +		phylink_set(mask, 100baseT_Full);
> > +		phylink_set(mask, 1000baseT_Half);
> > +		phylink_set(mask, 1000baseT_Full);
> > +		phylink_set(mask, 1000baseKX_Full);
> 
> Why? This seems at odds to the comment above?

> What about 2500baseX_Full ?

The comments explain that the PCS<->PHY link is in 2500BASE-X
and why 10/100/1000 link speed is mutually exclusive with 2500.
But the connected external PHY are twisted pair cable which only
supports 2500baseT_full.

Weifeng