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

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Message-ID: <YAg2ngUQIty8U36l@lunn.ch>
Date:   Wed, 20 Jan 2021 14:56:46 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Jiri Pirko <jiri@...nulli.us>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        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

> No, the FW does not know. The ASIC is not physically able to get the
> linecard type. Yes, it is odd, I agree. The linecard type is known to
> the driver which operates on i2c. This driver takes care of power
> management of the linecard, among other tasks.

So what does activated actually mean for your hardware? It seems to
mean something like: Some random card has been plugged in, we have no
idea what, but it has power, and we have enabled the MACs as
provisioned, which if you are lucky might match the hardware?

The foundations of this feature seems dubious.

    Andrew