05-27-2021 11:34 PM - edited 05-27-2021 11:37 PM
We work on wireless-xorif repository. We connected 1 to m_defm_data_tready port in order to debug all ORAN packets.
We debugged s_eth and m_defm_data ports. m_defm_data port does not present any data port, though ORAN IP gets packets on_time (It is observed from " xorif-app -i -c 'get fhi_stats 0' ").
What are the possible reasons?
05-28-2021 01:56 AM
It's hard to say, so far I've seen a few possible reasons :
1. The buffer is not set properly. even though you receive the packets within reception window, but not enough DL buffer so you can't get any output
2. The configuration doesn't match with the DL pcap. I've seen a case the BFP bitwidth doesn't match the one in pcap, and tready/tlast are not generated correctly (due to zero padding in Ethernet packets). In this case, radio head is in reception window but you can't see output.
Are you able to reproduce the issue in simulation, with pcap file? If so, I can have a close look at it.
05-31-2021 01:20 AM
05-31-2021 01:36 AM - edited 05-31-2021 01:38 AM
We are not able to do hardware debug, so we do not have ILA capture. The link is stable after ~300 packets, and ORAN IP counters are still active. We observe that ORAN packets are coming from O-DU. However, no packets are in m_defm_data even packets are accepted by s_eth port.