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AM437x IDK obtained TCP packets are gathered in one queue

Jacek Jaworski
Expert 1325 points

Hi,

I use idkam437x with ccs 6.1.2, sysbios 6.45.1.29, sdk 2.1.1.2 and ndk 2.24.3.35.

I have written the Ethernet-based application using the PRUICSS1 PRU1. Based on ethernet_mac example in sdk, only one MAC was used by ICSS_EMAC_MODE_MAC2 constant. I set the Eth level at ICSS_EMAC_QUEUE3 value.

Now, by Ostinato software I generate the tcp packets with various priorities in vlan tag and unexpectedly all the packets are classified to be put in queue4 (queue_number in RxTask equal to 3) and hence given to stack instead of RTcallback...

Could you please tell me what could be incorrect in my application that I cannot differentiate the packets into RT and non-RT? That is pretty important for my project.

Thank you in advance!

JJ