All of lore.kernel.org
 help / color / mirror / Atom feed
From: Andrew Lunn <andrew@lunn.ch>
To: "Köry Maincent" <kory.maincent@bootlin.com>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>,
	davem@davemloft.net, f.fainelli@gmail.com, hkallweit1@gmail.com,
	kuba@kernel.org, netdev@vger.kernel.org,
	richardcochran@gmail.com,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	Maxime Chevallier <maxime.chevallier@bootlin.com>
Subject: Re: [PATCH RFC net-next] net: phy: add Marvell PHY PTP support [multicast/DSA issues]
Date: Thu, 27 Apr 2023 18:50:47 +0200	[thread overview]
Message-ID: <8ad8c6ce-1a3e-4f80-84c8-d6921613cbb9@lunn.ch> (raw)
In-Reply-To: <20230427171306.2bfd824a@kmaincent-XPS-13-7390>

> As we are currently moving forward on PTP core to resolve this issue, I would
> like to investigate your PHY PTP patch in parallel. Indeed it does not work very
> well on my side.
> 
> The PTP UDP v4 and v6 work only if I add "--tx_timestamp_timeout 20" and the
> PTP IEEE 802.3 (802.1AS) does not work at all.
> On PTP IEEE 802.3 network transport ("ptp4l -2") I get continuously rx timestamp
> overrun:
> Marvell 88E1510 ff0d0000.ethernet-ffffffff:01: rx timestamp overrun (5)
> Marvell 88E1510 ff0d0000.ethernet-ffffffff:01: rx timestamp overrun (5)
> 
> I know it's been a long time but does it ring a bell on your memory?

How are you talking to the PHY? I had issues with slow MDIO busses,
especially those embedded within an Ethernet switch. You end up with
MDIO over MDIO which has a lot of latency. I _think_ i added some
patches to ptp4l to deal with this, but i forget exactly what landed.

	Andrew

  reply	other threads:[~2023-04-27 16:51 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-14 16:26 [PATCH RFC net-next] net: phy: add Marvell PHY PTP support Russell King
2020-07-15 18:38 ` Andrew Lunn
2020-07-15 18:56   ` Russell King - ARM Linux admin
2020-07-16 11:33     ` Russell King - ARM Linux admin
2020-07-16 20:53       ` Richard Cochran
2020-07-16 20:48 ` Richard Cochran
2020-07-17  7:54   ` Kurt Kanzenbach
2020-07-18  2:24     ` Richard Cochran
2020-07-20 14:21       ` Richard Cochran
2020-07-20 14:37         ` Kurt Kanzenbach
2020-07-26 23:48 ` Russell King - ARM Linux admin
2020-07-29 10:58 ` Russell King - ARM Linux admin
2020-07-29 13:19   ` Richard Cochran
2020-07-29 13:28     ` Russell King - ARM Linux admin
2020-07-29 22:07       ` Russell King - ARM Linux admin
2020-07-29 22:53         ` Vladimir Oltean
2020-07-30 15:53         ` Richard Cochran
2020-07-30 18:38           ` Russell King - ARM Linux admin
2020-07-30 19:32             ` Richard Cochran
2020-07-30 19:44               ` Russell King - ARM Linux admin
2020-07-30 11:06     ` [PATCH RFC net-next] net: phy: add Marvell PHY PTP support [multicast/DSA issues] Russell King - ARM Linux admin
2020-07-30 11:54       ` Russell King - ARM Linux admin
2020-07-30 12:47         ` Russell King - ARM Linux admin
2023-02-27 14:40           ` Köry Maincent
2023-02-27 15:20             ` Russell King (Oracle)
2023-02-27 17:30               ` Köry Maincent
2023-02-27 17:42                 ` Russell King (Oracle)
2023-02-27 19:45               ` Richard Cochran
2023-02-27 20:09                 ` Russell King (Oracle)
2023-02-27 20:19                   ` Richard Cochran
2023-02-28 12:07                     ` Russell King (Oracle)
2023-02-28 13:16                       ` Köry Maincent
2023-02-28 13:36                         ` Russell King (Oracle)
2023-02-28 14:50                           ` Köry Maincent
2023-02-28 15:16                         ` Richard Cochran
2023-02-28 15:33                           ` Andrew Lunn
2023-02-28 21:13                             ` Richard Cochran
2023-02-28 16:27                           ` Russell King (Oracle)
2023-02-28 16:44                             ` Michael Walle
2023-02-28 16:58                               ` Russell King (Oracle)
2023-02-28 20:13                                 ` Michael Walle
2023-02-28 21:11                                   ` Richard Cochran
2023-02-28 21:24                             ` Richard Cochran
2023-02-28 22:26                             ` Jakub Kicinski
2023-02-28 22:40                               ` Russell King (Oracle)
2023-02-28 22:59                                 ` Jakub Kicinski
2023-03-01 16:04                                   ` Köry Maincent
2023-03-02  4:36                                     ` Richard Cochran
2023-03-02 11:49                                       ` Russell King (Oracle)
2023-03-02 16:49                                         ` Jakub Kicinski
2023-03-02 17:06                                           ` Köry Maincent
2023-03-02 17:23                                             ` Jakub Kicinski
2023-03-03 13:12                                               ` Köry Maincent
2023-03-03 23:28                                                 ` Jakub Kicinski
2023-03-02 17:26                                           ` Russell King (Oracle)
2023-03-03 10:20                                             ` Michael Walle
2023-03-03 13:20                                               ` Andrew Lunn
2023-03-03 13:34                                                 ` Köry Maincent
2023-03-03 13:59                                                   ` Andrew Lunn
2023-03-03 14:03                                                 ` Russell King (Oracle)
2023-03-03 16:34                                                   ` Andrew Lunn
2023-03-03 17:32                                                     ` Richard Cochran
2023-03-03 17:35                                                       ` Richard Cochran
2023-03-03 23:40                                                   ` Jakub Kicinski
2023-03-02 21:28                                           ` Richard Cochran
2023-03-02 21:19                                         ` Richard Cochran
2023-04-27 15:13               ` Köry Maincent
2023-04-27 16:50                 ` Andrew Lunn [this message]
2023-04-28  8:51                   ` Köry Maincent
2020-07-30 15:50         ` Richard Cochran
2020-07-31 14:41         ` Andrew Lunn
2023-03-02 10:37   ` [PATCH RFC net-next] net: phy: add Marvell PHY PTP support Köry Maincent
2023-03-02 17:38     ` Russell King (Oracle)
2023-03-02 21:35     ` Richard Cochran

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=8ad8c6ce-1a3e-4f80-84c8-d6921613cbb9@lunn.ch \
    --to=andrew@lunn.ch \
    --cc=davem@davemloft.net \
    --cc=f.fainelli@gmail.com \
    --cc=hkallweit1@gmail.com \
    --cc=kory.maincent@bootlin.com \
    --cc=kuba@kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=maxime.chevallier@bootlin.com \
    --cc=netdev@vger.kernel.org \
    --cc=richardcochran@gmail.com \
    --cc=thomas.petazzoni@bootlin.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.