netdev - Re: [PATCH net] bnxt_en: Add missing periodic PHC overflow check

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Message-ID: <20210724121652.GA10654@hoboy.vegasvil.org>
Date:   Sat, 24 Jul 2021 05:16:52 -0700
From:   Richard Cochran <richardcochran@...il.com>
To:     Michael Chan <michael.chan@...adcom.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org,
        gospo@...adcom.com, pavan.chebbi@...adcom.com
Subject: Re: [PATCH net] bnxt_en: Add missing periodic PHC overflow check

On Fri, Jul 23, 2021 at 05:53:48PM -0400, Michael Chan wrote:
> We use the timecounter APIs for the 48-bit PHC and packet timestamps.
> We must periodically update the timecounter at roughly half the
> overflow interval.  The overflow interval is about 78 hours, so
> update it every 19 hours (1/4 interval) for some extra margins.
> 
> Fixes: 390862f45c85 ("bnxt_en: Get the full 48-bit hardware timestamp periodically")
> Reviewed-by: Pavan Chebbi <pavan.chebbi@...adcom.com>
> Signed-off-by: Michael Chan <michael.chan@...adcom.com>

Acked-by: Richard Cochran <richardcochran@...il.com>