RE: [PATCH 1/3][v2] net: phy: introduce 1000BASE-KX and 10GBASE-KR

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> > If you look at the list of possible values for "phy-mode" you'd see
> > that none of it describes a PHY-to-PHY connection but all are for
> > MAC-to-PHY connections. Also, names above suggest it already: MII is
> > short for media _independent_ interface.
> >
> > I copy Andrew's concerns and think that neither 10000base-kx nor
> > 10gbase-kr belong in the list of phy-mode properties.
> 
> I concur with that as well, if the phy connection does not really matter here,
> or does not seem like a good fit, maybe we should have a different property, or
> just define the hardware interface a little differently?
Right, 'phy-mode' is not a good fit for backplanes, how about a new property like
'backplane-mode' or something, like below:

--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -33,6 +33,9 @@ Optional Properties:
 - broken-turn-around: If set, indicates the PHY device does not correctly
   release the turn around line low at the end of a MDIO transaction.
 
+- backplane-mode: string, operation mode of the backplane PHY;
+  must be "1000base-kx" for 1000BASE-KX, or "10gbase-kr" for 10GBASE-KR.
+
 Example:
 
 ethernet-phy@0 {

Thank you!

Shaohui
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