netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Jiri Pirko <jiri@resnulli.us>
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>,
	davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
	edumazet@google.com, netdev@vger.kernel.org,
	richardcochran@gmail.com, nathan.sullivan@ni.com,
	Jacob Keller <jacob.e.keller@intel.com>,
	Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com>
Subject: Re: [PATCH net] igb: extend PTP timestamp adjustments to i211
Date: Wed, 28 Feb 2024 13:28:27 +0100	[thread overview]
Message-ID: <Zd8m6wpondUopnFm@pengutronix.de> (raw)
In-Reply-To: <Zd7-9BJM_6B44nTI@nanopsycho>

On Wed, Feb 28, 2024 at 10:37:56AM +0100, Jiri Pirko wrote:
> Tue, Feb 27, 2024 at 07:49:41PM CET, anthony.l.nguyen@intel.com wrote:
> >From: Oleksij Rempel <o.rempel@pengutronix.de>
> >
> >The i211 requires the same PTP timestamp adjustments as the i210,
> >according to its datasheet. To ensure consistent timestamping across
> >different platforms, this change extends the existing adjustments to
> >include the i211.
> >
> >The adjustment result are tested and comparable for i210 and i211 based
> >systems.
> >
> >Fixes: 3f544d2a4d5c ("igb: adjust PTP timestamps for Tx/Rx latency")
> 
> IIUC, you are just extending the timestamp adjusting to another HW, not
> actually fixing any error, don't you? In that case, I don't see why not
> to rather target net-next and avoid "Fixes" tag. Or do I misunderstand
> this?

From my perspective, it was an error, since two nearly identical systems
with only one difference (one used i210 other i211) showed different PTP
measurements. So, it would be nice if distributions would include this
fix. On other hand, I'm ok with what ever maintainer would decide how
to handle this patch.

Regards,
Oleksij
-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

  reply	other threads:[~2024-02-28 12:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-27 18:49 [PATCH net] igb: extend PTP timestamp adjustments to i211 Tony Nguyen
2024-02-28  9:37 ` Jiri Pirko
2024-02-28 12:28   ` Oleksij Rempel [this message]
2024-02-28 17:43     ` Keller, Jacob E
2024-02-29  4:20       ` Jakub Kicinski
2024-02-29 20:09         ` Keller, Jacob E
2024-02-29 20:14           ` Jakub Kicinski
2024-02-29  8:29       ` Jiri Pirko
2024-02-29  4:30 ` patchwork-bot+netdevbpf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Zd8m6wpondUopnFm@pengutronix.de \
    --to=o.rempel@pengutronix.de \
    --cc=anthony.l.nguyen@intel.com \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=himasekharx.reddy.pucha@intel.com \
    --cc=jacob.e.keller@intel.com \
    --cc=jiri@resnulli.us \
    --cc=kuba@kernel.org \
    --cc=nathan.sullivan@ni.com \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    --cc=richardcochran@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).