netdev - Re: [PATCH RFC net-next v1 0/6] ethtool HW timestamping statistics

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Message-ID: <4c94d725-a903-4979-bcc6-9353e0869cd7@intel.com>
Date: Fri, 23 Feb 2024 13:00:10 -0800
From: Jacob Keller <jacob.e.keller@...el.com>
To: Rahul Rameshbabu <rrameshbabu@...dia.com>, Saeed Mahameed
	<saeed@...nel.org>, Leon Romanovsky <leon@...nel.org>, "David S. Miller"
	<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Jonathan Corbet
	<corbet@....net>, Richard Cochran <richardcochran@...il.com>, Tariq Toukan
	<tariqt@...dia.com>, Gal Pressman <gal@...dia.com>, Vadim Fedorenko
	<vadim.fedorenko@...ux.dev>, Andrew Lunn <andrew@...n.ch>, Heiner Kallweit
	<hkallweit1@...il.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>, Ahmed
 Zaki <ahmed.zaki@...el.com>, Alexander Lobakin
	<aleksander.lobakin@...el.com>, Hangbin Liu <liuhangbin@...il.com>, "Paul
 Greenwalt" <paul.greenwalt@...el.com>, Justin Stitt <justinstitt@...gle.com>,
	Randy Dunlap <rdunlap@...radead.org>, Maxime Chevallier
	<maxime.chevallier@...tlin.com>, Kory Maincent <kory.maincent@...tlin.com>,
	Wojciech Drewek <wojciech.drewek@...el.com>, Vladimir Oltean
	<vladimir.oltean@....com>, Jiri Pirko <jiri@...nulli.us>, Alexandre Torgue
	<alexandre.torgue@...s.st.com>, Jose Abreu <joabreu@...opsys.com>, "Dragos
 Tatulea" <dtatulea@...dia.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-doc@...r.kernel.org>
Subject: Re: [PATCH RFC net-next v1 0/6] ethtool HW timestamping statistics



On 2/23/2024 11:24 AM, Rahul Rameshbabu wrote:
> The goal of this patch series is to introduce a common set of ethtool statistics
> for hardware timestamping that a driver implementer can hook into. The
> statistics counters added are based on what I believe are common
> patterns/behaviors found across various hardware timestamping implementations
> seen in the kernel tree today. The mlx5 family of devices is used as the PoC for
> this patch series. Other vendors are more than welcome to chim in on this
> series.
> 
> Statistics can be queried from either the DMA or PHY layers. I think this
> concept of layer-based statistics selection and the general timestamping layer
> selection work Kory Maincent is working on can be converged together [1].
> 
> [1] https://lore.kernel.org/netdev/20240216-feature_ptp_netnext-v8-0-510f42f444fb@bootlin.com/
> 

Makes sense! I like this direction, I had meant to work on this for the
Intel parts, but got sidetracked by other tasks. I look forward to
seeing what you've done here.