Re: [PATCH] PCI: Reduce delay after FLR of Microsoft MANA devices

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On Wed, May 21, 2025 at 11:15:39PM +0000, grwhyte@xxxxxxxxxxxxxxxxxxx wrote:
> From: Graham Whyte <grwhyte@xxxxxxxxxxxxxxxxxxx>
> 
> Add a device-specific reset for Microsoft MANA devices with the FLR
> delay reduced from 100ms to 10ms. While this is not compliant with the pci
> spec, these devices safely complete the FLR much quicker than 100ms and
> this can be reduced to optimize certain scenarios

It looks like this could be done generically if the device advertised
the Readiness Time Reporting Capability (PCIe r6.0, sec 7.9.16) and
Linux supported that Capability (which it currently does not)?


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