netdev - Re: [PATCH net-next v2 5/6] sfc: ef10: implement ethtool::get_fec

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Date:   Tue, 20 Apr 2021 16:13:21 +0100
From:   Edward Cree <ecree.xilinx@...il.com>
To:     Jakub Kicinski <kuba@...nel.org>, davem@...emloft.net
Cc:     netdev@...r.kernel.org, michael.chan@...adcom.com,
        saeedm@...dia.com, leon@...nel.org, habetsm.xilinx@...il.com,
        f.fainelli@...il.com, andrew@...n.ch, mkubecek@...e.cz,
        ariela@...dia.com
Subject: Re: [PATCH net-next v2 5/6] sfc: ef10: implement
 ethtool::get_fec_stats

On 15/04/2021 23:53, Jakub Kicinski wrote:
> Report what appears to be the standard block counts:
>  - 30.5.1.1.17 aFECCorrectedBlocks
>  - 30.5.1.1.18 aFECUncorrectableBlocks
> 
> Don't report the per-lane symbol counts, if those really
> count symbols they are not what the standard calls for
> (even if symbols seem like the most useful thing to count.)
> 
> Fingers crossed that fec_corrected_errors is not in symbols.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>

For the record: yes, fec_[un]corrected_errors are counts of
 FEC codewords, not symbols, so this patch is correct.

Whereas, the per-lane counts definitely are counting symbols.

-ed