P-SeriesのトピックRe: Tx_fifo_errors on P4080 board

Tx_fifo_errors on P4080 board

sharathchandra — Mon, 13 Apr 2015 09:23:41 GMT

Hi,

On my COMX-P4080 board from Emerson , I observe Tx packet loss.When I checked the errors, it is seens as tx_fifo_erros.

How do I resolve this issue?

The case is similar to my P4080DS board where packets are lost but I don't observe it as tx_fifo_erros or anything. I suspect it may not be showing in my P4080DS board. But there also there is a packet loss.

It would be very helpful if anyone could suggest anything?

Thanks,

Sharath Chandra

Re: Tx_fifo_errors on P4080 board

yipingwang — Mon, 20 Apr 2015 06:18:29 GMT

Hello Sharath Chandra,

Please get more detailed debug information with the following command. (Please adjust the parameter according to your Ethernet port).

$ cat /sys/devices/fsl,dpaa.15/ethernet.16/net/fm1-gb1/statistics/tx_fifo_errors

$ cat /sys/devices/fsl,dpaa.15/ethernet.16/net/fm1-gb1/statistics/tx_dropped

$ cat /sys/kernel/debug/powerpc/fsl_dpa/eth0

In addition, would you please provide your Kernel configuration file and dts file?

Have a great day,
Yiping

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Re: Tx_fifo_errors on P4080 board

sharathchandra — Fri, 29 May 2015 11:28:16 GMT

Hi Yiping,

The issue was with UDP buffer size, after increasing the buffer size. It got resolved.

Thanks,

Sharth Chandra