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Original question:

How to send/receive jumbo packet by AM335x EMAC?

Linux/PROCESSOR-SDK-AM437X: Jumbo frame support

user4121072
Intellectual 400 points
Part Number: PROCESSOR-SDK-AM437X

Tool/software: Linux

Dear All,

I use am437x with linux 3.12, and I want to use jumbo frame and set MTU as 9k. But when I try to set MTU I got the error, and looks like it can not set greater then 1500:

root@myd_c437x eth1# ifconfig eth0 mtu 9000 up
ifconfig: SIOCSIFMTU: Invalid argument
root@myd_c437x eth1# ifconfig eth1 mtu 9000 up
ifconfig: SIOCSIFMTU: Invalid argument
root@myd_c437x eth1# uname -a
Linux myd_c437x 3.12.10 #1 Thu Oct 22 10:12:37 CST 2015 armv7l GNU/Linux
root@myd_c437x eth1# ifconfig eth1 mtu 1500 up
root@myd_c437x eth1# ifconfig eth1 mtu 1501 up
ifconfig: SIOCSIFMTU: Invalid argument

Do you know am437x supports jumbo frame or not?

Thanks for your help!

Best Regards,

Jakebo