srsRAN/n310 | Error: failed receiving packet.

[houshangaziziaccelleran]

Hello

I have following UHD version on my server:

ad@bm-super11-intel:~/houshang$ uhd_config_info --version
UHD 4.7.0.0-0ubuntu1~jammy1
ad@bm-super11-intel:~/houshang$ ssh [root@10.10.0.100](mailto:root@10.10.0.100)

And the following UHD version on my n310:

root@ni-n3xx-32000F1:~# uhd_config_info --version
UHD 4.7.0.0-0-ga5ed1872
root@ni-n3xx-32000F1:~#

They are the same and my n310 is updated with the following file:

ad@bm-super11-intel:~/houshang$ md5sum /usr/share/uhd/images/usrp_n310_fpga_HG.bit
532b338d6861268c05a4fd9837ca80e5  /usr/share/uhd/images/usrp_n310_fpga_HG.bit
ad@bm-super11-intel:~/houshang$

I am running srsRAN gNB on my server (Commit 9d5dd742a).

Here are the error messages I get:

==== gNB started ===
Type <h> to view help
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 2805; Underflow: 2238; Overflow: 0;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 0; Underflow: 5; Overflow: 0;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 0; Underflow: 4; Overflow: 0;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 0; Underflow: 4; Overflow: 0;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 0; Underflow: 4; Overflow: 0;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.

And obviously it is not working with this amount of errors.

Can anyone help me with this please?

Thanks
Houshang

[kishorfarm]

Hello.

I have the same exact problem. I'm running srsRAN gnb with a N310 and UHD 4.7.0.0-0 version.

Did you manage to solve this? @houshangaziziaccelleran

Thank you and regards.

Below I copy the log:

root@optiplex-7040:~# gnb -c /home/enb/config/srsran/gnb_rf_n310_fdd_srsUE.yml

--== srsRAN gNB (commit e5d5b44b9) ==--

Lower PHY in quad executor mode.
Cell pci=1, bw=20 MHz, 1T1R, dl_arfcn=524000 (n7), dl_freq=2620.0 MHz, dl_ssb_arfcn=523970, ul_freq=2500.0 MHz

Available radio types: uhd.
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.7.0.0-0ubuntu1~jammy1
[INFO] [LOGGING] Fastpath logging disabled at runtime.
Making USRP object with args 'type=n3xx,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000'
[INFO] [MPMD] Initializing 1 device(s) in parallel with args: mgmt_addr=192.168.10.2,type=n3xx,product=n310,serial=3269EB8,name=ni-n3xx-3269EB8,fpga=HG,claimed=False,addr=192.168.10.2,master_clock_rate=122.88e6,send_frame_size=8000,recv_frame_size=8000
[INFO] [MPM.main] Launching USRP/MPM, version: 4.7.0.0-ga5ed1872
[INFO] [MPM.main] Spawning RPC process...
[INFO] [MPM.PeriphManager] Device serial number: 3269EB8
[INFO] [MPM.PeriphManager] Initialized 2 daughterboard(s).
[INFO] [MPM.PeriphManager] init() called with device args `clock_source=internal,time_source=internal'.
[INFO] [MPM.RPCServer] RPC server ready!
[INFO] [MPM.RPCServer] Spawning watchdog task...
[INFO] [MPM.PeriphManager] init() called with device args `fpga=HG,master_clock_rate=122.88e6,mgmt_addr=192.168.10.2,name=ni-n3xx-3269EB8,product=n310,recv_frame_size=8000,send_frame_size=8000,clock_source=internal,time_source=internal'.
[INFO] [MPM.Magnesium-0] Re-initializing daughter board. This may take some time.
[INFO] [MPM.Magnesium-1] Re-initializing daughter board. This may take some time.
[WARNING] [0/Radio#0] Attempting to set tick rate to 0. Skipping.
N2: Connection to AMF on 10.53.1.2:38412 completed
==== gNB started ===
Type <h> to view help
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 896; Underflow: 141; Overflow: 5;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 7; Underflow: 0; Overflow: 0;
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK.
Late: 7; Underflow: 0; Overflow: 0;

Also, this is the srsRAN gnb YAML config file (it's the original srsRAN example config file modified to use a N310 instead of a B210):

# This example configuration outlines how to configure the srsRAN Project gNB to create a single FDD cell
# transmitting in band 3, with 20 MHz bandwidth and 15 kHz sub-carrier-spacing. A USRP B200 is configured
# as the RF frontend using split 8, with a Leo Bodnar GPSDO as an external reference clock.

# This particular configuration is intended to be used with srsUE. Note the `pdcch` parameters set in the
# `cell_cfg` section. These are set to match the capabilities of srsUE.

cu_cp:
  amf:
    addr: 10.53.1.2
    port: 38412
    bind_addr: 10.53.1.1
    supported_tracking_areas:
      - tac: 7
        plmn_list:
          - plmn: "00101"
            tai_slice_support_list:
              - sst: 1

ru_sdr:
  device_driver: uhd
  device_args: type=n3xx
  clock: gpsdo
  srate: 122.88
  tx_gain: 55
  rx_gain: 40

# DL EARFCN  Band  Mode  DL (MHz) 
# 368500     n3    FDD   1842.5   
# 524000     n7    FDD   2620         

# UL EARFCN  Band  Mode  UL (MHz)
# 349500     n3    FDD   1747.5
# 500000     n7    FDD   2500

cell_cfg:
  dl_arfcn: 524000
  band: 7
  channel_bandwidth_MHz: 20
  common_scs: 15
  plmn: "00101"
  tac: 7
  pdcch:
    dedicated:
      ss2_type: common
      dci_format_0_1_and_1_1: false
    common:
      ss0_index: 0
      coreset0_index: 12
  prach:
    prach_config_index: 1
  pdsch:
    mcs_table: qam64
  pusch:
    mcs_table: qam64

log:
  filename: /tmp/gnb.log
  all_level: info

pcap:
  mac_enable: false
  mac_filename: /tmp/gnb_mac.pcap
  ngap_enable: false
  ngap_filename: /tmp/gnb_ngap.pcap

[gabrielzb19]

Hi @kishorfarm @houshangaziziaccelleran I've got the same error with USRP x410, were you able to solve this tiemout error?