netdev - Re: [Intel-wired-lan] [PATCH net v1] igc: Do not enable crosstimestamping for i225-V models

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Date:   Mon, 27 Dec 2021 22:35:31 +0200
From:   "Kraus, NechamaX" <nechamax.kraus@...ux.intel.com>
To:     Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        intel-wired-lan@...ts.osuosl.org
Cc:     netdev@...r.kernel.org, roots@....de, regressions@...mhuis.info,
        greg@...ah.com, kuba@...nel.org
Subject: Re: [Intel-wired-lan] [PATCH net v1] igc: Do not enable
 crosstimestamping for i225-V models

On 12/14/2021 02:39, Vinicius Costa Gomes wrote:
> It was reported that when PCIe PTM is enabled, some lockups could
> be observed with some integrated i225-V models.
> 
> While the issue is investigated, we can disable crosstimestamp for
> those models and see no loss of functionality, because those models
> don't have any support for time synchronization.
> 
> Fixes: a90ec8483732 ("igc: Add support for PTP getcrosststamp()")
> Link: https://lore.kernel.org/all/924175a188159f4e03bd69908a91e606b574139b.camel@gmx.de/
> Reported-by: Stefan Dietrich <roots@....de>
> Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@...el.com>
> ---
>   drivers/net/ethernet/intel/igc/igc_ptp.c | 15 ++++++++++++++-
>   1 file changed, 14 insertions(+), 1 deletion(-)
> 
Tested-by: Nechama Kraus <nechamax.kraus@...ux.intel.com>