From: "Köry Maincent" <kory.maincent@bootlin.com>
To: Andrew Lunn <andrew@lunn.ch>
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: Fri, 28 Apr 2023 10:51:40 +0200 [thread overview]
Message-ID: <20230428105140.1710c1fc@kmaincent-XPS-13-7390> (raw)
In-Reply-To: <8ad8c6ce-1a3e-4f80-84c8-d6921613cbb9@lunn.ch>
On Thu, 27 Apr 2023 18:50:47 +0200
Andrew Lunn <andrew@lunn.ch> wrote:
> > 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.
I am talking to the PHY through a simple MDIO bus.
The current PTP support from Russell does not support interrupts. Could it be
the cause of needing bigger tx timestamp timeout?
next prev parent reply other threads:[~2023-04-28 8:52 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
2023-04-28 8:51 ` Köry Maincent [this message]
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
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