pciprop.h

NTDEV
1

Hello,

can someone (perhaps someone from microsoft) take a look at the file pciprop.h (mine is from the EWDK 10.0.10586.0).
I see in one of our testmachines values for the DEVPROPKEY CurrentLinkSpeed that are not defined in this file.

Thanks

Werner

2

What values are you seeing?

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Subject: [ntdev] pciprop.h

Hello,

can someone (perhaps someone from microsoft) take a look at the file pciprop.h (mine is from the EWDK 10.0.10586.0).
I see in one of our testmachines values for the DEVPROPKEY CurrentLinkSpeed that are not defined in this file.

Thanks

Werner

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3

The value that I see is 3 (three) - it’s for a NVMe SSD.
(One (1) and two (2) can be seen at other devices - these are well defined,
so I assume that 3 has been added to show … ??

Werner

4

I think it’s Gen3 speed: 8Gt/s.

By the way, WinDbg doesn’t know about Gen3 when it decodes the PCIe config space.

5

Thanks ALex,

yes, that make sense.
Hopefully an “offical” confirmation is given by the next version of the WDK/EWDK.

Werner