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Sohan_Patel's avatar
Sohan_Patel
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9 months ago
Solved

MCDMA Example design hardware verification

Hi there,

We are trying to verify AVMM DMA by following the steps given in (https://www.intel.com/content/www/us/en/docs/programmable/683517/24-3-1/run-the-reference-example-application-79212.html),
while running the following commands
command 1 : ./perfq_app -b 0000:ae:00.0 -p 32768 -l 5 -u -c 2 -d 2 -a 1
command 2 : ./perfq_app -b 0000:ae:00.0 -p 32768 -l 5 -u -c 1 -d 2 -a 1

command 3 : ./perfq_app -b 0000:ae:00.0 -p 32768 -l 5 -u -c 2 -d 2 -a 2 (this results in segmentation faults)

we are getting the attached logs, in each case we are getting queue stuck as well as all the queues failed. We also noticed busmaster getting disable after running each command. Kindly guide us the steps to resolve this issue. PFA, logs of the command, common.mk file, pci details of the bittware card.

Fpga Devkit
  • Sohan_Patel's avatar
    Sohan_Patel
    8 months ago

    Hey @ventt ,

    Sorry for the delay.

    I would like to inform you that after some changes in pl design and host configuration, we had solved this issue. You can close this forum.

    Thank you for your response.

    Regards,
    Sohan

6 Replies

  • VenT_Altera's avatar
    VenT_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    9 months ago

    Hi Sohan_Patel,

    Thanks for reaching out.

    Allow me some time to investigate your issue. I shall come back to you with the findings.

    Thanks.

    Best Regards,

    Ven


  • VenT_Altera's avatar
    VenT_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    8 months ago

    Hi Sohan_Patel,

    I apologize on the late updates.

    Could you please provide the following information:

    1. I noticed that the PCIe link has been downgraded from Gen4 x16 to Gen1 x16. Is this Gen speed downgrade intentional? If not, could you please share the details?

    2. What is the model and device OPN of the BittWare card used?

    3. Please share the .ip file that was used to generate the Design Example to allow us to understand the parameters and settings applied.

    4. What is the LTSSM state of the PCIe link? Has a stable link-up been achieved?

    Thanks.

    Best Regards,

    Ven


    • Sohan_Patel's avatar
      Sohan_Patel
      Icon for New Contributor rankNew Contributor
      8 months ago

      Hey @ventt ,

      Sorry for the delay.

      I would like to inform you that after some changes in pl design and host configuration, we had solved this issue. You can close this forum.

      Thank you for your response.

      Regards,
      Sohan

  • VenT_Altera's avatar
    VenT_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    8 months ago

    Hi Sohan_Patel,

    May I ask if you have any updates? Has your issue been resolved?


    Please let me know the current status of the issue.

    Again, I apologize for my late reply to your questions.


    Thanks.

    Best Regards,

    Ven


  • VenT_Altera's avatar
    VenT_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    8 months ago

    Hi Sohan_Patel,

    Please let me know if you have any updates on this forum.


    Thanks.

    Best Regards,

    Ven


  • VenT_Altera's avatar
    VenT_Altera
    Icon for Frequent Contributor rankFrequent Contributor
    8 months ago

    Hi Sohan_Patel,

    Thank you for your updates and confirmation.

    I am glad to hear that you were able to resolve the issue.


    If you have a new question, feel free to open a new thread to get support from Altera experts.


    Thanks.

    Best Regards,

    Ven