netdev - Re: [RFC PATCH V5 net-next 0/5] ethtool: Extend module EEPROM dump API

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Date:   Fri, 26 Mar 2021 00:41:15 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Moshe Shemesh <moshe@...dia.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Adrian Pop <pop.adrian61@...il.com>,
        Michal Kubecek <mkubecek@...e.cz>,
        Don Bollinger <don@...bollingers.org>, netdev@...r.kernel.org,
        Vladyslav Tarasiuk <vladyslavt@...dia.com>
Subject: Re: [RFC PATCH V5 net-next 0/5] ethtool: Extend module EEPROM dump
 API

On Thu, Mar 25, 2021 at 04:56:50PM +0200, Moshe Shemesh wrote:
> Ethtool supports module EEPROM dumps via the `ethtool -m <dev>` command.
> But in current state its functionality is limited - offset and length
> parameters, which are used to specify a linear desired region of EEPROM
> data to dump, is not enough, considering emergence of complex module
> EEPROM layouts such as CMIS 4.0.
> Moreover, CMIS 4.0 extends the amount of pages that may be accessible by
> introducing another parameter for page addressing - banks.

This is looking much better.

Do you have a version of ethtool using this new API? WIP code is
O.K. I will add basic support to sfp.c and test it out on the devices
i have.

  Andrew