Forum Discussion

allen18's avatar
allen18
Icon for Occasional Contributor rankOccasional Contributor
2 years ago

PCIe DMA transfer timeout

Hello， I am using quartus Pro 22.3 , device ( stratix10 1SX110HN2F43I2VG ) , IP core ( L-Tile and H-Tile Avalon Memory-mapped Intel FPGA IP for PCI Express 22.2.0 . When I use the DMA IP c...
Other Ips
VenT_Altera's avatar
VenT_Altera
Icon for Frequent Contributor rankFrequent Contributor
1 year ago

Hi @allen18,


Meanwhile, I will try to run the DMA test on my end to see if I can replicate your issue. Could you please address the following questions, and also please see the suggestions below?

1. Please provide the 'lspci' information.

2. Are you seeing the error in the latest version of QPP software, v24.2?

3. Please check the OS and the version used. We suggest you follow the OS requirement stated in ug-683616: https://www.intel.com/content/www/us/en/docs/programmable/683616/20-3/hardware-and-software-requirements.html

4. When running the DMA test, we suggest the CPU not run other tasks.


Thanks.

Best Regards,

Ven


allen18's avatar
allen18
Icon for Occasional Contributor rankOccasional Contributor
1 year ago

hi @ventt ,

You can use the corresponding example design in your test environment to run DMA and verify if timeout issues occur. Our driver engineers have developed new kernel driver code, and with the new driver, we no longer encounter DMA timeout issues during data transmission. This confirms that the problem is definitely related to the test kernel code provided by the example design,or possibly to some definitions in the header files of the code.