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Issue about Imx6dl Gigabit Ethernet performance

Question asked by jerry zhai on Jul 27, 2015
Latest reply on Jul 27, 2015 by igorpadykov

I know ENET throughput performance has a 470mbit/s limitation (in doc: Chip Errata for the i.MX 6Solo/6DualLite) is a hardware erratum in imx6dl platform.

 

But in my test wifh imx6dl, I can get Ethernet throughput performance with a 415+165 = 580Mbit/s, this is far beyond the limitation in the doc(Chip Errata for the i.MX 6Solo/6DualLite).

 

I wonder why I can get this higher performance as in the doc 470mbit/s should be the MAX performance.

 

Also in the doc, when throughput beyond 400Mbit/s, there is a rick to cause ENET RX FIFO overrun. While in my test 580Mbit/s is far beyond this 400Mbit/s, so how can I configure HW or SW to avoid this risk.

 

Thanks.

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