Re: [PATCH net-next v2 4/7] net: dsa: vsc73xx: Add dsa tagging based on 8021q

[Vladimir Oltean]

On Sun, Jun 25, 2023 at 01:53:39PM +0200, Pawel Dembicki wrote:
> This patch is simple implementation of 8021q tagging in vsc73xx driver.
> At this moment devices with DSA_TAG_PROTO_NONE are useless. VSC73XX
> family doesn't provide any tag support for external ethernet ports.
> 
> The only way is vlan-based tagging. It require constant hardware vlan
> filtering. VSC73XX family support provider bridging but QinQ only without
> fully implemented 802.1AD. It allow only doubled 0x8100 TPID.
> 
> In simple port mode QinQ is enabled to preserve forwarding vlan tagged
> frames.
> 
> Tag driver introduce most simple funcionality required for proper taging
> support.
> 
> Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> Signed-off-by: Pawel Dembicki <paweldembicki@xxxxxxxxx>
> ---
> diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
> index 3ed5391bb18d..4cf0166fef7b 100644
> --- a/drivers/net/dsa/Kconfig
> +++ b/drivers/net/dsa/Kconfig
> @@ -125,7 +125,7 @@ config NET_DSA_SMSC_LAN9303_MDIO
>  
>  config NET_DSA_VITESSE_VSC73XX
>  	tristate
> -	select NET_DSA_TAG_NONE
> +	select NET_DSA_TAG_VSC73XX

typo: "select NET_DSA_TAG_VSC73XX_8021Q". This does not do anything, and
Kconfig still asks for a prompt for the config option that does exist.

>  	select FIXED_PHY
>  	select VITESSE_PHY
>  	select GPIOLIB