Re: FLR on AER

[Sinan Kaya]

On 2/22/2018 8:21 AM, Jon Masters wrote:
> Hi Bjorn,
> 
> It looks like the AER driver wonât do a device FLR but instead will default to progressively bigger hammers. Am I missing something?
> 

AFAIK, AER driver does a secondary bus reset only if it observes a FATAL error. In order to
issue an FLR, driver needs to access the endpoint config space. Since there is a FATAL error,
this is not possible as PCI link is unreliable or probably gone.

> Jon.
> 


-- 
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.