i.MX Processors中的主题 Re: Packet loss RGMII

Packet loss RGMII

himanshugusain — Mon, 16 Nov 2015 19:38:57 GMT

We have connected RGMII back to back between IMX and ZYNQ

Also we have taken care of PHY simulation in our driver.

The problem we are facing currently is while pinging "IMX <-> ZYNQ" with payload

we are seeing the packet loss.

This issue (PacketLoss) was not observed in freescale provided 3.0.35 kernel ,but is currenly observed

in 3.10.53 kernel

I have seen additional things like flow control has been added in 3.10.53 kernel

also there are few changes w.r.t tx/rx flow .

Could that be resulting in packetloss issue

Re: Packet loss RGMII

jamesbone — Mon, 30 Nov 2015 15:22:34 GMT

Hello Himanshu,

Yes, this changes could be the result of packetloss, since as you may already known the i.MX6 FEC Controller, has an errata. Please see more details in the following link:

i.MX6 Ethernet limitations

Re: Packet loss RGMII

himanshugusain — Mon, 30 Nov 2015 17:15:12 GMT

Hi James

I am unable to access above link

Regards

Himanshu