netdev - Re: [patch net-next RFC 00/10] introduce line card support for modular switch

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Message-ID: <YArdeNwXb9v55o/Z@lunn.ch>
Date:   Fri, 22 Jan 2021 15:13:12 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     David Ahern <dsahern@...il.com>, Jakub Kicinski <kuba@...nel.org>,
        netdev@...r.kernel.org, davem@...emloft.net,
        jacob.e.keller@...el.com, roopa@...dia.com, mlxsw@...dia.com
Subject: Re: [patch net-next RFC 00/10] introduce line card support for
 modular switch

> I don't see any way. The userspace is the one who can get the info, from
> the i2c driver. The mlxsw driver has no means to get that info itself.

Hi Jiri

Please can you tell us more about this i2c driver. Do you have any
architecture pictures?

It is not unknown for one driver to embed another driver inside it. So
the i2c driver could be inside the mlxsw. It is also possible to link
drivers together, the mlxsw could go find the i2c driver and make use
of its services.

   Andrew