topic Re:Low DMA speeds with i210 in Ethernet Products

Low DMA speeds with i210

OwenG05 — Sat, 27 Apr 2024 12:17:12 GMT

My project requires high DMA speeds even when the device is down with no connections. Right now I have tried and got around 20-30MB/s or read fails. This is not enough, and with another card I was getting about 200MB/s. Is there anywhere in the driver source code that could be limiting/blocking the DMA reads that is controlled by the device's memory mapped space? I have looked so far and have only found logic that controls DMA while the device is active with a connection.

Thanks.

Re:Low DMA speeds with i210

Sazirah — Wed, 01 May 2024 03:46:04 GMT

Hi OwenG05,

Thank you for posting in Intel Ethernet Communities.

Regarding this issue, may we know what system that you are currently using together?

Also, can you share the SSU logs for us to analyze further. You may refer below for the steps on how to get the SSU logs:

https://www.intel.com/content/www/us/en/support/articles/000057926/memory-and-storage.html

Regards,

Sazzy_Intel

Re:Low DMA speeds with i210

Sazirah — Fri, 03 May 2024 01:32:56 GMT

Hi OwenG05,

Good day.

This is related to your enquiries above, I would like to check if the issue has resolved?

If you have any questions or clarifications, please let me know.

Regards,

Sazzy_Intel

Re:Low DMA speeds with i210

Sazirah — Wed, 08 May 2024 01:23:50 GMT

Hi OwenG05,

Good day.

This is regarding your enquiry above.

Since we have not seen an update, we will be closing this forum case from our end. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Regards,

Sazzy_Intel