netdev - Re: [RFC PATCH V4 net-next 1/5] ethtool: Allow network drivers to dump arbitrary EEPROM data

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Date:   Tue, 23 Mar 2021 23:17:56 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Don Bollinger <don@...bollingers.org>
Cc:     'Moshe Shemesh' <moshe@...dia.com>,
        "'David S. Miller'" <davem@...emloft.net>,
        'Jakub Kicinski' <kuba@...nel.org>,
        'Adrian Pop' <pop.adrian61@...il.com>,
        'Michal Kubecek' <mkubecek@...e.cz>, netdev@...r.kernel.org,
        'Vladyslav Tarasiuk' <vladyslavt@...dia.com>
Subject: Re: [RFC PATCH V4 net-next 1/5] ethtool: Allow network drivers to
 dump arbitrary EEPROM data

> The spec is clear that the lower half is the same for all pages.  If the SFP
> gives you rubbish you should throw the device in the rubbish.

Sometimes you don't get the choice. You have to use the GPON SFP the
ISP sent you, if you want FTTH. And they tend to be cheap and broken
with respect to the spec.

    Andrew