RE: [PATCH 1/6] PCI Express Advanced Error Reporting Driver

From: Nguyen, Tom L
Date: Mon Mar 14 2005 - 15:06:37 EST

On Saturday, March 12, 2005 1:38 AM Andi Kleen wrote:
>I haven't read your code in detail, just a high level remark.
>> +6. Enabling AER Aware Support in PCI Express Device Driver
>> +
>> +To enable AER aware support requires a software driver to configure
>> +the AER capability structure within its device, to initialize its
>> +aware callback handle and to call pcie_aer_register. Sections 6.1,
>> +6.2, and 6.3 describe how to enable AER aware support in details.
>There is currently discussion underway for a generic portable PCI
>error reporting interface for drivers. This is already being worked
>on by some PPC64 and IA64 people. I don't think it would be a good idea
>to add another incompatible PCI-E specific interface.
>So I would recommend to not apply pcie_aer_register()
>and coordinate with the others working on this area on a common
>This would only impact the device driver interface; having
>a PCI Express specific interface in sysfs is probably ok.
>Otherwise we would end up with tons of ifdefs in the drivers
>supporting multiple error reporting interfaces for different platforms,

>which would be bad.
>Also in general I think the necessary callbacks should
>be part of the basic device; not provided in a separate structure.

Agree. We will coordinate with the others working on this area on a
common interface.

Thanks for your suggestions,

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