Embedded Server
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Xeon D-1700 PCIe Gen4 Compliance test

TaylorTY_Lin
Beginner
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I am testing PCIe Gen4 using Xeon D-1746 processor,

 

TaylorTY_Lin_4-1708944726425.png

"Adaptive" means that Compliance Mode can automatically select PCIe Gen4 P0~P10?

Socket Configuration => IIO Configuration => Socket0 Configuration => Port 1A => Compliance Mode => Yes

 

Thanks

Taylor

 

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TaylorTY_Lin
Beginner
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BIOS Setting : 

Socket Configuration => IIO Configuration => Socket0 Configuration => Port 1A => Compliance Mode => Yes, at the mode, the system can't change the test preset, which one is the test mode (Gen4 preset P0-P10)? 

In this mode, we could pass PCIe Gen4 compliance test.

TaylorTY_Lin_0-1709011038858.png

 

The BIOS team reported that PCIe Gen4 was automatically set to P7, which complies with the PCIe definition. However, using a Keysight oscilloscope, after comparison, it should be P4, as shown below.

The below picture is Compliance Mode => Yes, the system can't change the test preset, the Preshoot and De-Emphasis is the same as P4.

 

TaylorTY_Lin_1-1709011038862.png

 

TaylorTY_Lin_2-1709011038876.png

 

By the way, we tested the default mode of P7 and the result was failure, so we need to check which default value on PCIe Gen4?

TaylorTY_Lin_3-1709011038881.png

 

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Diego_INTEL
Moderator
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Hello @TaylorTY_Lin,

 

Thank you for contacting Intel Embedded Community.

 

You can try checking the PCIe margin using the IO Margin Tool from the document #630560.

 

From the document #626646 - Ice Lake D LCC SoC Product Family Sightings Report, there are some sightings regarding PCIe Compliance Tests.

 

Best regards,

 

@Diego_INTEL 

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TaylorTY_Lin
Beginner
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Hi Diego

 

1. We want to use the SIV method to authenticate PCIe/SATA,

The IO Margin tool is more like a compatibility test. Please correct me if there is any wrong.

 

Ref. #763555.

TaylorTY_Lin_0-1709693199870.png

 

2. By the way, we don't have Intel® In-Target Probe - Extended Debug Port (ITP-XDP), 

So I have tried to install IOMT, but that can't support On-target mode, I'm stuck, neither SIV nor SMV can test SATA, and PCIe Gen4 as above.

 

TaylorTY_Lin_1-1709693867549.png

I can't select On Target mode in the Windows 10 operating system.

TaylorTY_Lin_3-1709694767080.png

 

 

Reference #630559

TaylorTY_Lin_2-1709694693745.png

TaylorTY_Lin_4-1709694838087.png

 

Thanks

Taylor

 

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