[PATCH RFC] Providing a helper for PCS inband negotiation

[Andrew Lunn]

> 2. XLGMII.. Looking at the XPCS driver, it's unclear whether Clause 73
>    AN gets used for this. A quick scan of IEEE 802.3 suggests that
>    XLGMII doesn't have any support for any inband signalling, and it's
>    just an intermediary protocol between the MAC (more specifically the
>    RS, but for the purposes of this I'll just refer to MAC) and the
>    attached PCS, and any autonegotiation happens after the XLGMII link.

So isn't XLGMII then a generic PHY thing, not a phylink thing?

Or am i not correctly understanding how
drivers/phy/marvell/phy-*-comphy.c and
drivers/phy/microchip/*_serdev.c fit into the overall picture?

	Andrew