AnsweredAssumed Answered

[IMX6SLX/LAN]Regarding the received frame discard feature

Question asked by Kazuma Sasaki on Jan 15, 2017
Latest reply on Jan 19, 2017 by Kazuma Sasaki

<My environment>


BSP version : 4.1.15-2.0.0 ga release

Hardware / Software changes : no change

Display : not use


<Issue description>

IMX6SXRM mentioned the received frame discard feature at section

According to this description, when ethernet MAC receive frame which frame length is greater than MAX_FL, Ethernet MAC discard this frame data.

But, current Linux BSP seems accepting this frame.


<Reproduce procedure>

1.BSP boot

2.ENETx_RCR[MAX_FL] register set to 1000 Byte

3.Ping which packet length 959 byte(=frame length 1001 byte) send to IMX4. IMX received ping in violation of spec.


How do we able to enable received frame discard featrue in this case?


Best Regards,

Kazuma Sasaki.