On 14/08/2026 05:42, Eric Joyner wrote:
> On 8/4/2026 3:27 AM, Vadim Fedorenko wrote:
>> Caution: This message originated from an External Source. Use proper caution
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>>
>>
>> On 31/07/2026 22:40, Eric Joyner wrote:
>>> Reports FEC statistics totals and an 802.3ck FEC histogram. Per-lane counts
>>> currently aren't supported, and the only expected histogram format from
>>> firmware is the one with 16 bins from RS(544,514) FEC.
>>
>> does it mean the FW will return IONIC_STAT_INVALID for 100G CWDM4 mode
>> on newest devices?
>>
>>
> > The only device we have that supports reporting these FEC histograms doesn't
> have a PHY that supports 100G CWDM4; the IP block for it only supports PAM4
> media types and not NRZ. So for now, it would return IONIC_STAT_INVALID for
> that mode.
> > Though, I don't know if that'll be the case for future devices; maybe they will
> support FEC histogram stat collection with NRZ media that has fewer than 16
> histogram bins. I just don't know if it's worth supporting that possibility
> right now since I don't know when or if that will happen.
Ok, thanks for explaining.
Reviewed-by: Vadim Fedorenko <[email protected]>
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