From: Lukas Wunner <lukas@wunner.de>
To: Shuai Xue <xueshuai@linux.alibaba.com>
Cc: "Bjorn Helgaas" <helgaas@kernel.org>,
"Matthew W Carlis" <mattc@purestorage.com>,
"Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>,
anil.s.keshavamurthy@intel.com, bhelgaas@google.com,
bp@alien8.de, davem@davemloft.net, linux-edac@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, mark.rutland@arm.com,
mathieu.desnoyers@efficios.com, mhiramat@kernel.org,
naveen@kernel.org, oleg@redhat.com, peterz@infradead.org,
rostedt@goodmis.org, tianruidong@linux.alibaba.com,
tony.luck@intel.com
Subject: Re: [PATCH v8] PCI: hotplug: Add a generic RAS tracepoint for hotplug event
Date: Sat, 26 Jul 2025 09:55:24 +0200 [thread overview]
Message-ID: <aISJ7MG3zbMRuc_Q@wunner.de> (raw)
In-Reply-To: <25285fbd-ffab-49e5-a8be-e3a1c8e70d3c@linux.alibaba.com>
On Mon, Jul 21, 2025 at 09:17:55PM +0800, Shuai Xue wrote:
> 2025/7/19 15:11, Lukas Wunner :
> > PCI links can be tunneled over Thunderbolt, in this case the
> > link speed is fixed to 2.5 GT/s (USB4 v1.0 sec 11.2.1), but
> > in reality is governed by the speed of the Thunderbolt fabric
> > (which can even be asymmetric). Do we want to report the
> > virtual 2.5 GT/s in this case or the actual Thunderbolt speed?
> > Or do we want a separate trace event for Thunderbolt?
>
> I'm not a user of Thunderbolt, which way do you prefer?
Keep reporting the virtual 2.5 GT/s in the PCI tracepoint and
maybe add a separate tracepoint later in the thunderbolt driver
to report the Thunderbolt speed.
Thanks,
Lukas
next prev parent reply other threads:[~2025-07-26 7:55 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-12 1:38 [PATCH v8] PCI: hotplug: Add a generic RAS tracepoint for hotplug event Shuai Xue
2025-05-19 17:10 ` Ilpo Järvinen
2025-05-20 2:36 ` Shuai Xue
2025-05-20 10:07 ` Ilpo Järvinen
2025-05-20 10:44 ` Lukas Wunner
2025-05-20 10:59 ` Ilpo Järvinen
2025-05-20 12:09 ` Lukas Wunner
2025-05-20 12:52 ` Ilpo Järvinen
2025-05-20 13:11 ` Lukas Wunner
2025-05-22 9:50 ` Shuai Xue
2025-05-31 14:15 ` Lukas Wunner
2025-07-16 6:52 ` Shuai Xue
2025-05-22 9:41 ` Shuai Xue
2025-06-02 6:30 ` Ilpo Järvinen
2025-06-23 3:04 ` Shuai Xue
2025-07-16 22:25 ` Bjorn Helgaas
2025-07-17 6:00 ` Shuai Xue
2025-07-17 19:29 ` Bjorn Helgaas
2025-07-21 8:55 ` Ilpo Järvinen
2025-07-24 22:27 ` Bjorn Helgaas
2025-07-25 4:33 ` Shuai Xue
2025-07-17 17:28 ` Matthew W Carlis
2025-07-17 19:07 ` Bjorn Helgaas
2025-07-17 20:23 ` Lukas Wunner
2025-07-17 23:27 ` Matthew W Carlis
2025-07-17 23:50 ` Bjorn Helgaas
2025-07-18 3:46 ` Matthew W Carlis
2025-07-18 5:29 ` Shuai Xue
2025-07-18 16:35 ` Bjorn Helgaas
2025-07-19 5:23 ` Shuai Xue
2025-07-19 7:11 ` Lukas Wunner
2025-07-21 13:17 ` Shuai Xue
2025-07-26 7:55 ` Lukas Wunner [this message]
2025-07-21 10:18 ` Ilpo Järvinen
2025-07-22 2:43 ` [PATCH v8] PCI: hotplug: Add a generic RAS tracepoinggt " Shuai Xue
2025-07-22 12:29 ` Ilpo Järvinen
2025-07-23 1:29 ` Shuai Xue
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