I use i.MX6DL and RTL8111F(pci ethernet).
When I run iperf in normal status, TX speed is about 600MBits/sec and somtimes disconnection occurs.
But when reducing TX speed to under 300MBits/sec (by adjusting MTU to under 500 or Number of Tx descriptor registers to under 128), there is no disconnetion.
So I want to know whether i.MX6 has a limitation of giga ethernet or not.
If not, advise to me about abobe please.