Congatec QMX6 Ethernet limitation ~100Mb/s

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Congatec QMX6 Ethernet limitation ~100Mb/s

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charly31
Contributor I

Hi,

I'm working on a Congatec QMX6, and I have an issue with Ethernet speed using the BSP provided with a kernel 3.0.35.

It tops under 100Mb/s using Iperf.

Can anybody confirm that ?

An older version with a kernel 3.0.15 which I received on a µSD didn't have this limitation and I could reach 456Mb/s which is close enough to the 470Mb/s limitation (ERRATA ERR004512).

I couldn't regenerate that version yet.

So if somebody has a clue on what might be the cause of this poor result.

Thx

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alxdc
Contributor III

Hi Charles,

first of all, are you using a A/B revision of the module?

Then please fetch the latest u-boot and kernel from https://git.congatec.com/ and test it again. If the problem persist write back.

Regards.

alex.

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