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Can not stop next concecutive rx_st_sop

gena
Beginner
988 Views

Hello,
Can anyone in intel help to solve my following issue on pcie core?

I’m designing the PCIe add-in card that has intel FPGA, and using PCIe hard-ip core below.
-Cyclone10GX
-X4, gen1.1a
-Endpoint, Avalon-st
I’m debugging memory and register accesses through the pcie core on the card, by using our diagnostic software.
During debugging, I observed the following symptom on TLP data stream form the core.

Symptom:
Usually, there is no issue on rx_st_sop behavior.
However, by increasing TLP traffics, I observed that core has hold rx_st_sop asserted intermittently, even though user-logic does de-assert rx_st_ready.
Now my user-logic cannot handle TLP packet with this symptom.

I’d like to know if this is a normal behavior of the pcie ip core.
and I’d like to know how to sop next consecutive rx_st_sop in this case.

What do think?
Regards,

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10 Replies
Rahul_S_Intel1
Employee
971 Views

To confirm you are using PCIe Avalon ST and User logic right 

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gena
Beginner
966 Views

Hello,
Yes, I’m using PCIe Avalon-ST interface and User logic for its control.

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Rahul_S_Intel1
Employee
955 Views

Hi,

 I gone through the data base from our system of the issue reported from your side , I could not able to see any one have reported the same behaviour by increasing the TLP.

 

For further issue debugging ,the issue have to replicate inhouse , that limitation is there

 

 

 

 

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gena
Beginner
942 Views

Hello,

Do you have any comments on the followings?
-Possible root cause.
-How to proceed to debug with the core.

I’d like to have off-line communication regarding this symptom with intel.
For further debugging, could you email me intel’s contact information or direct me to the person?

Thank you.
Regards,

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Rahul_S_Intel1
Employee
938 Views

Taking in to private converstation 

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gena
Beginner
916 Views

Hello,

Do you have any updates on this subject?

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Rahul_S_Intel1
Employee
911 Views

Hi , 

I have sent a private conversation with you , kindly update the details. So that , I can directly debug your design 

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gena
Beginner
907 Views

Hello,

Something wrong. I sent email twice Intel Customer Support this week. sounds like I can not reach you.

Do you have a file drop or FTP link?

Could you email me the above link?

Thank you.

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Rahul_S_Intel1
Employee
904 Views

As per our policies , we are not encouraged to share the file by FTP. If you could not reply to my Email , is it possible to send private message 

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gena
Beginner
895 Views
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