netdev - Re: [net-next PATCH V2 3/4] octeontx2-pf: ethtool: Implement get_fec

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Date:   Tue, 29 Nov 2022 19:45:30 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Hariprasad Kelam <hkelam@...vell.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kuba@...nel.org, davem@...emloft.net, pabeni@...hat.com,
        edumazet@...gle.com, sgoutham@...vell.com, lcherian@...vell.com,
        gakula@...vell.com, jerinj@...vell.com, sbhatta@...vell.com
Subject: Re: [net-next PATCH V2 3/4] octeontx2-pf: ethtool: Implement
 get_fec_stats

On Tue, Nov 29, 2022 at 10:44:08AM +0530, Hariprasad Kelam wrote:
> The current implementation is such that FEC statistics are reported as
> part of ethtool statistics that is the user can fetch them from the
> below command
> 
> "ethtool -S eth0"
> 
> Fec Corrected Errors:
> Fec Uncorrected Errors:
> 
> This patch removes this logic

What might break the ABI, if anybody is using these statistics, or has
a dumb parser and just looks at entry 42 which is now a different
entry.

So i think you need to keep these two, and additionally report them
the correct way via get_fec_stats.

    Andrew