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Message-ID: <b6f7e7b9-163b-4c84-ad64-53bb147e8684@linux.dev> Date: Tue, 14 Nov 2023 10:22:43 -0500 From: Vadim Fedorenko <vadim.fedorenko@...ux.dev> To: Saeed Mahameed <saeed@...nel.org>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com> Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org, Tariq Toukan <tariqt@...dia.com>, Rahul Rameshbabu <rrameshbabu@...dia.com> Subject: Re: [net-next 08/14] net/mlx5e: Introduce lost_cqe statistic counter for PTP Tx port timestamping CQ On 13/11/2023 15:00, Saeed Mahameed wrote: > From: Rahul Rameshbabu <rrameshbabu@...dia.com> > > Track the number of times the a CQE was expected to not be delivered on PTP > Tx port timestamping CQ. A CQE is expected to not be delivered of a certain > amount of time passes since the corresponding CQE containing the DMA > timestamp information has arrived. Increment the late_cqe counter when such > a CQE does manage to be delivered to the CQ. > It looks like missed/late timestamps is common problem for NICs. What do you think about creating common counters in ethtool to have general interface to provide timestamps counters? It may simplify things a lot.
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