netdev - Re: [PATCH v6 net-next 0/4] PHC support in ENA driver

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Message-ID: <7bc5e34e-8be6-46a2-8262-7129fff5e2f3@linux.dev>
Date: Sun, 9 Feb 2025 12:33:24 +0000
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Jakub Kicinski <kuba@...nel.org>, David Arinzon <darinzon@...zon.com>,
 "Machnikowski, Maciek" <maciek@...hnikowski.net>
Cc: David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
 Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
 Simon Horman <horms@...nel.org>, Richard Cochran <richardcochran@...il.com>,
 "Woodhouse, David" <dwmw@...zon.com>,
 Rahul Rameshbabu <rrameshbabu@...dia.com>, Gal Pressman <gal@...dia.com>
Subject: Re: [PATCH v6 net-next 0/4] PHC support in ENA driver

On 08/02/2025 00:58, Jakub Kicinski wrote:
> On Thu, 6 Feb 2025 16:15:34 +0200 David Arinzon wrote:
>> This patchset adds the support for PHC (PTP Hardware Clock)
>> in the ENA driver. The documentation part of the patchset
>> includes additional information, including statistics,
>> utilization and invocation examples through the testptp
>> utility.
> 
> Vadim, Maciek, did you see this? Looks like the device has limitations
> on number of gettime calls per sec. Could be a good fit for the work
> you are prototyping?

Hi Jakub!

Yes, we have seen this patchset, and we were thinking of how to
generalize error_bound property, which was removed from the latest
version unfortunately. But it's a good point to look at it once
again in terms of our prototype, thanks!

Best,
Vadim