linux-kernel - Re: [PATCH v5 3/3] PCI/AER: Report fatal errors of RCiEP and EP if link recoverd

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Message-ID: <47b52f6f-d27d-49bc-a999-382441aa310e@linux.alibaba.com>
Date: Fri, 19 Sep 2025 09:41:52 +0800
From: Shuai Xue <xueshuai@...ux.alibaba.com>
To: Bjorn Helgaas <helgaas@...nel.org>
Cc: bhelgaas@...gle.com, mahesh@...ux.ibm.com, mani@...nel.org,
 Jonathan.Cameron@...wei.com, sathyanarayanan.kuppuswamy@...ux.intel.com,
 oohall@...il.com, linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
 linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v5 3/3] PCI/AER: Report fatal errors of RCiEP and EP if
 link recoverd



在 2025/9/19 04:33, Bjorn Helgaas 写道:
> On Wed, Sep 17, 2025 at 02:33:52PM +0800, Shuai Xue wrote:
>> The AER driver has historically avoided reading the configuration space of
>> an endpoint or RCiEP that reported a fatal error, considering the link to
>> that device unreliable. Consequently, when a fatal error occurs, the AER
>> and DPC drivers do not report specific error types, resulting in logs like:
>>
>> 	pcieport 0015:00:00.0: EDR: EDR event received
>> 	pcieport 0015:00:00.0: EDR: Reported EDR dev: 0015:00:00.0
>> 	pcieport 0015:00:00.0: DPC: containment event, status:0x200d, ERR_FATAL received from 0015:01:00.0
>> 	pcieport 0015:00:00.0: AER: broadcast error_detected message
>> 	pcieport 0015:00:00.0: AER: broadcast mmio_enabled message
>> 	pcieport 0015:00:00.0: AER: broadcast resume message
>> 	pcieport 0015:00:00.0: pciehp: Slot(21): Link Down/Up ignored
>> 	pcieport 0015:00:00.0: AER: device recovery successful
>> 	pcieport 0015:00:00.0: EDR: DPC port successfully recovered
>> 	pcieport 0015:00:00.0: EDR: Status for 0015:00:00.0: 0x80
> 
> When you update this series, can you indent these messages with two
> spaces instead of a tab?  That will preserve a little space and also
> preserve the formatting when "git log" adds its own indentation.


Sure, will align with space.

Thanks.
Shuai