Re: [PATCH net-next v6 2/2] net: dsa: realtek: rtl8365mb: add HSGMII support for RTL8367S

[Mieczyslaw Nalewaj]

On 7/12/2026 6:31 AM, Johan Alvarado via B4 Relay wrote:
> From: Johan Alvarado <contact@xxxxxxxx>
> 
> In addition to SGMII, the RTL8367S SerDes also supports HSGMII, which
> carries 2.5 Gbps with the same signaling as SGMII at 2.5x clock rate.
> The chip info table already declares HSGMII as a supported interface
> mode for external interface 1.
> 
> Extend the SerDes PCS to handle HSGMII, which phylink represents as
> 2500base-x:
> 
>  - Select the HSGMII SerDes tuning parameters and external interface
>    mode, and mux the SerDes to MAC8 in HSGMII mode, from pcs_config()
>    according to the interface. The parameters are again lifted from the
>    GPL-licensed Realtek rtl8367c vendor driver, and again only cover
>    the tuning variant for a non-zero chip option, so the mode is gated
>    on the option probed at setup.
> 

[...]

Reviewed-by: Mieczyslaw Nalewaj <namiltd@xxxxxxxxx>