[PATCH net-next v5 3/5] net: pcs: xpcs: add CL37 1000BASE-X AN support

[Russell King (Oracle)]

On Wed, Jun 15, 2022 at 04:39:06PM +0800, Ong Boon Leong wrote:
> For CL37 1000BASE-X AN, DW xPCS does not support C22 method but offers
> C45 vendor-specific MII MMD for programming.
> 
> We also add the ability to disable Autoneg (through ethtool for certain
> network switch that supports 1000BASE-X (1000Mbps and Full-Duplex) but
> not Autoneg capability.
> 
> v4: Fixes to comment from Russell King. Thanks!
>     https://patchwork.kernel.org/comment/24894239/
>     Make xpcs_modify_changed() as private, change to use
>     mdiodev_modify_changed() for cleaner code.
> 
> v3: Fixes to issues spotted by Russell King. Thanks!
>     https://patchwork.kernel.org/comment/24890210/
>     Use phylink_mii_c22_pcs_decode_state(), remove unnecessary
>     interrupt clearing and skip speed & duplex setting if AN
>     is enabled.
> 
> v2: Fixes to issues spotted by Russell King in v1. Thanks!
>     https://patchwork.kernel.org/comment/24826650/
>     Use phylink_mii_c22_pcs_encode_advertisement() and implement
>     C45 MII ADV handling since IP only support C45 access.
> 
> Tested-by: Emilio Riva <emilio.riva at ericsson.com>
> Signed-off-by: Ong Boon Leong <boon.leong.ong at intel.com>

Reviewed-by: Russell King (Oracle) <rmk+kernel at armlinux.org.uk>

Thanks!

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!