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agula
New Contributor I
102 Views

Arria 10 PCIe SRIOV IP

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Hello  ,

I am using the SRIOV PCIe IP core. When I write 32-bit DWs into the host memory from the endpoint, some of them get stuck. For example , I see the write request at the correct address go out on the bus, but the host memory does not show these changes until more writes are performed. So if its the last write to the host software, this will never show up. I am using a dma_alloc_coherent for all shared space between FPGA and system software.  Does anybody know what could be causing these issues. Seems very strange and I cannot pinpoint an issue.

 

Thank you! 

 

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agula
New Contributor I
58 Views

Solved issues thanks for the reply. The tx empty encoding was incorrect on one of the writes. 

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3 Replies
81 Views

Hi,


What device you are using? Have you tried checking using signal tap? Are all the signals correct from the STP?


Thanks

Best regards,

KhaiY


68 Views

Hi,


We do not receive any response from you to the previous question/reply/answer that I have provided. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get the support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you


Best regards,

KhaiY


agula
New Contributor I
59 Views

Solved issues thanks for the reply. The tx empty encoding was incorrect on one of the writes. 

View solution in original post

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