From: patchwork-bot+netdevbpf@kernel.org
To: James Clark <jjc@jclark.com>
Cc: theo.lebrun@bootlin.com, netdev@vger.kernel.org,
richardcochran@gmail.com, conor.dooley@microchip.com,
andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org,
nb@tipi-net.de
Subject: Re: [PATCH net v3] net: macb: fix ordering around PTP timestamp read
Date: Thu, 17 Sep 2026 12:30:04 +0000 [thread overview]
Message-ID: <178964820443.3616626.14441776053855821867.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260915045823.76100-1-jjc@jclark.com>
Hello:
This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:
On Tue, 15 Sep 2026 11:58:17 +0700 you wrote:
> PTP_SYS_OFFSET_EXTENDED returns system timestamps that do not correctly
> bracket the PHC register read on MACB/GEM. On a Raspberry Pi 5, the
> returned interval can be as short as 37 ns, while an ordered register
> read takes approximately 1 us. This biases the midpoint used by phc2sys,
> causing CLOCK_REALTIME to run approximately 0.5 us ahead when synchronized
> to the PHC.
>
> [...]
Here is the summary with links:
- [net,v3] net: macb: fix ordering around PTP timestamp read
https://git.kernel.org/netdev/net/c/9ca4ba242591
You are awesome, thank you!
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prev parent reply other threads:[~2026-09-17 12:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-15 4:58 James Clark
2026-09-17 12:30 ` patchwork-bot+netdevbpf [this message]
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