From: Richard Cochran <richardcochran@gmail.com>
To: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org
Subject: Re: [PATCH RFC net-next] net: phy: add Marvell PHY PTP support [multicast/DSA issues]
Date: Thu, 30 Jul 2020 08:50:06 -0700 [thread overview]
Message-ID: <20200730155006.GA28298@hoboy> (raw)
In-Reply-To: <20200730115419.GX1605@shell.armlinux.org.uk>
On Thu, Jul 30, 2020 at 12:54:19PM +0100, Russell King - ARM Linux admin wrote:
> So, something in the IPv4 layer on ARM64 is silently discarding
> multicast UDP PTP packets, and I've no idea what... and I'm coming to
> the conclusion that this is all way too much effort and way too
> unreliable to be worth spending any more time trying to make work.
I've also seen this on the Marvell switch. I'm not sure if the root
cause is in the Linux stack or in the mcast forwarding logic in the
switch. Using the Marvell, I can make a layer2 TC or a UDPv4 BC, but
not a UDPv4 TC.
I haven't had time to dig deeper, and I think many people are happy
with a layer2 TC as that is called out in the TSN world.
Thanks,
Richard
next prev parent reply other threads:[~2020-07-30 15:50 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
2020-07-30 15:50 ` Richard Cochran [this message]
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=20200730155006.GA28298@hoboy \
--to=richardcochran@gmail.com \
--cc=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=f.fainelli@gmail.com \
--cc=hkallweit1@gmail.com \
--cc=kuba@kernel.org \
--cc=linux@armlinux.org.uk \
--cc=netdev@vger.kernel.org \
/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.