netdev - Re: bug: 'ethtool -m' reports spurious alarm & warning threshold values for QSFP28 transceivers

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Date:   Tue, 2 Oct 2018 10:10:46 +0300
From:   Eran Ben Elisha <eranlinuxmellanox@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     Eran Ben Elisha <eranbe@...lanox.com>, nhorman@...driver.com,
        chrisp@...nsition.com, "John W. Linville" <linville@...driver.com>,
        Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: bug: 'ethtool -m' reports spurious alarm & warning threshold
 values for QSFP28 transceivers

On Thu, Sep 27, 2018 at 6:34 PM Andrew Lunn <andrew@...n.ch> wrote:
>
> > Driver return 256 bytes (reading it correctly, I verified it, no overruns),
> > however the extra bytes are presented due to this bug (expecting to parse
> > 640 bytes).
> >
> > Do you see another bug here? Am I missing something?
>
> Hi Erin
Eran...
>
> Please could you try ethtool -m raw on so you get a binary dump.  The
> file which Chris provided had more bytes in it than 256.

I ran '-m raw on' on QSFP28.
File size is 256 bytes.
(with and without my suggested patch...)

Eran

>
> Thanks
>         Andrew