[PATCH v3 03/12] net: add DSA framework to support basic switch functionality

[Sascha Hauer]

On Thu, Apr 07, 2022 at 11:15:55AM +0200, Oleksij Rempel wrote:
> Add DSA based port multiplexing functionality for barebox. With this
> framework we will be able to use different ports of as switch
> separately.
> 
> Signed-off-by: Oleksij Rempel <o.rempel at pengutronix.de>
> ---
>  drivers/net/Kconfig  |   4 +
>  drivers/net/Makefile |   1 +
>  drivers/net/dsa.c    | 460 +++++++++++++++++++++++++++++++++++++++++++
>  include/dsa.h        |  90 +++++++++
>  4 files changed, 555 insertions(+)
>  create mode 100644 drivers/net/dsa.c
>  create mode 100644 include/dsa.h
> 
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index 65c93bbe84..8d76fe66f2 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -17,6 +17,10 @@ config HAS_MACB
>  config PHYLIB
>  	bool
>  
> +config DSA
> +	bool
> +	select PHYLIB

Hm, DSA will likely depend on NET in one way or the other. This means
DSA depends on other options and thus can't be selected by DSA client
drivers. DSA should be actively selected by the user and the client
drivers should depend on DSA rather than selecting it.

Sascha

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