AM3356: DSCP priority for EtherNet/IP

Hiroyasu Tazawa1

Part Number: AM3356

Hi,

Let me talk about EtherNet/IP for AM335x.
We use PRU-ICSS-ETHERNETIP-ADAPTER 01_00_02_00 and Processor SDK 3.3.0.4 for AM335x.

attributes Attr#4-8 of QoS object have DSCP priority.

It is set to NDK by socket option (setsockopt) when socket is generated.

and We got error, Because priority of the packet received by the test tool in the conformance test is 0

We calls this function below.

IRet = setsockopt (s, IPPROTO_IP, IP_TOS, (const char *) & bDSCPValue, sizeof (bDSCPValue));

For example, if we set the following value to bDSCPValue, the return will be 0,
but transmitted packet is 00 in Wireshark.

TCP, bDSCPValue is 0x6C
UDP, bDSCPValue is 0xBC

So, I have the following questions.
(1)Is this setting correct for DSCP ?
(2)Please let me know about other setting in NDK without setsockopt, if you have.

Best Regards
Hiroyasu

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

The RTOS team have been notified. They will respond here.

0 Paula Carrillo over 7 years ago

TI__Mastermind 38820 points

Hiroyasu-san, I haven't used setsocketopt before. Let me check how it works and come back to you.
Thank you,
Paula

0 Paula Carrillo over 7 years ago in reply to Paula Carrillo

TI__Mastermind 38820 points

Hiroyasu-san,

For additional information about setsockopt, you can check NDK reference guide (spru524j). Additionally, we have son NIMU examples in the PDK package, which uses setsockopt that you can take a look and run as a reference for comparison.

From your lines of code, I don't see any obvious mistake. Please take a look of the examples/documentation and let us know if this helps or if you still face issues.

thank you,

Paula

0 Hiroyasu Tazawa1 over 7 years ago in reply to Paula Carrillo

Guru 12350 points

Hi, Paula-san

Thank you for your reply,
I got it.

Best Regards
Hiroyasu

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AM3356: DSCP priority for EtherNet/IP