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Visitor danistmein
Visitor
166 Views
Registered: ‎09-01-2019

Stream C2h Overrun problem in linux xdma driver

Hello,

 

we are using the xdma driver(AR65444) in Linux.  We used the Stream mode with a ring buffer(reading operation). When I read data from the FPGA, the error messages are printed on the console. What causes this problem? the transfer speed is only 800MB/s. What should I need to do to fix this problem? can anyone give me some threads? Thanks!

Best Regards.

[ 336.911430] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 336.911730] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 336.913241] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 336.913537] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 345.430003] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 345.438936] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 345.447050] xdma:engine_ring_process: 0-C2H0-ST: overrun
[ 349.143121] xdma:engine_ring_process: 0-C2H0-ST: overrun

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Observer david.krolik
Observer
86 Views
Registered: ‎08-20-2019

Re: Stream C2h Overrun problem in linux xdma driver

Did you solve this?

 

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