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Xilinx / dma_ip_drivers

Xilinx QDMA IP Drivers
https://xilinx.github.io/dma_ip_drivers/
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QDMA AIO Read #235

Open DevDebugger opened 1 year ago

DevDebugger commented 1 year ago

using the qdma driver, when I try to read asynchronously, my system causes a freeze then restarts.

the restart is happening from a result of the line below: rv = xcdev->fp_aiorw(xcdev->xcb->xpdev->dev_hndl, qhndl, caio->req_count, caio->reqv);

My overall goal is to read asynchronously, while also performing zero copy DMA. I turn off no_memcpy, however i believe this is only for performance testing and actually doesnt do anything besides that?

hmaarrfk commented 1 year ago

i ran into this a while back too. i never had the patience to debug it. I just don't use the AIO path.

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