Re: [PATCH net-next v5 00/13] net: phy: Rework linkmodes handling in a dedicated file

From: Paolo Abeni
Date: Thu Mar 13 2025 - 05:14:38 EST


On 3/7/25 6:35 PM, Maxime Chevallier wrote:
> Hello everyone,
>
> This is V5 of the phy_caps series. In a nutshell, this series reworks the way
> we maintain the list of speed/duplex capablities for each linkmode so that we
> no longer have multiple definition of these associations.
>
> That will help making sure that when people add new linkmodes in
> include/uapi/linux/ethtool.h, they don't have to update phylib and phylink as
> well, making the process more straightforward and less error-prone.
>
> It also generalises the phy_caps interface to be able to lookup linkmodes
> from phy_interface_t, which is needed for the multi-port work I've been working
> on for a while.
>
> This V5 addresse Russell's and Paolo's reviews, namely :
>
> - Error out when encountering an unknown SPEED_XXX setting
>
> It prints an error and fails to initialize phylib. I've tested by
> introducing a dummy 1.6T speed, I guess it's only a matter of time
> before that actually happens :)
>
> - Deal more gracefully with the fixed-link settings, keeping some level of
> compatibility with what we had before by making sure we report a
> single BaseT mode like before.
>
> V1 : https://lore.kernel.org/netdev/20250222142727.894124-1-maxime.chevallier@xxxxxxxxxxx/
> V2 : https://lore.kernel.org/netdev/20250226100929.1646454-1-maxime.chevallier@xxxxxxxxxxx/
> V3 : https://lore.kernel.org/netdev/20250228145540.2209551-1-maxime.chevallier@xxxxxxxxxxx/
> V4 : https://lore.kernel.org/netdev/20250303090321.805785-1-maxime.chevallier@xxxxxxxxxxx/

LGTM, waiting an extra bit to allow explicit acks from the phy crew.

Thanks,

Paolo