netdev - Re: [RFC PATCH net-next 0/4] ethtool: Add ability to write to transceiver module EEPROMs

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Message-ID: <YNskdT/FMWERmtF5@lunn.ch>
Date:   Tue, 29 Jun 2021 15:47:33 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Ido Schimmel <idosch@...sch.org>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, kuba@...nel.org,
        jiri@...dia.com, vladyslavt@...dia.com, moshe@...dia.com,
        vadimp@...dia.com, mkubecek@...e.cz, mlxsw@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: Re: [RFC PATCH net-next 0/4] ethtool: Add ability to write to
 transceiver module EEPROMs

> Even with the proposed approach, the kernel sits in the middle between
> the module and user space. As such, it can maintain an "allow list" that
> only allows access to modules with a specific memory map (CMIS and
> SFF-8636 for now) and only to a subset of the pages which are
> standardized by the specifications.

Hi Ido

This seems like a reasonable compromise. But i would go further. Limit
it to just what is needed for firmware upgrade.

   Andrew