Failed to run DOCA DPA Sample

Infrastructure & Networking DOCA Enterprise Networking
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I am trying to familiarize myself with DPA applications, but I am facing issues during the initialization of DPA devices.

I am using BF3 as NIC mode, and I am running a sample application on the host machine.

I tried DOCA SDK 2.10, 2.9 LTS, 2.5 LTS, and 2.8 but faced the same problem during initialization of the DPA device.

/tmp/build1/doca_dpa_ping_pong -d mlx5_0
[09:50:27:983012][933518][DOCA][INF][dpa_ping_pong_main.c:63][main] Starting the sample
[933518] flexio_create_prm_dpa_uar 551 - Failed to create outbox PRM object. Status is 0x2, syndrome 0xcfcf65.
[933518] flexio_uar_create 713 - Failed to create DPA_UAR object
[933518] process_create 1009 - Failed to create Flex IO UAR
[09:50:28:050577][933518][DOCA][ERR][dpa_runtime.cpp:176][on_start_err] Flexio process create failed
[09:50:28:050623][933518][DOCA][ERR][dpa_runtime.cpp:787][doca_dpa_start] Failed to start dpa context
[09:50:28:050635][933518][DOCA][ERR][dpa_common.c:379][allocate_dpa_resources] Failed to start DOCA DPA context: DOCA Driver call failure
[09:50:28:052818][933518][DOCA][ERR][dpa_ping_pong_main.c:85][main] Failed to Allocate DPA Resources: DOCA Driver call failure
[09:50:28:052835][933518][DOCA][INF][dpa_ping_pong_main.c:111][main] Sample finished with errors

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Hello rana.abubakar,

Thank you for posting your inquiry on the NVIDIA Developer Forum - Infrastructure and Networking - Section.

Based on the information provided, there can be several low-level issue with your install/config:

  1. Missing or Incorrect Firmware: The BlueField DPU’s firmware might be missing the necessary components or be an incompatible version to support the DPA feature.
  2. Missing or Incorrect DOCA Driver/Runtime: The DOCA software stack (drivers, libraries) on the host or the DPU might not be installed correctly or is an incompatible version with the firmware.
  3. Resource Limits/System Configuration: On the BlueField DPU, the maximum number of DPA processes or UARs may have been exceeded, or an essential kernel module (like mlx5_ib) is not loaded.
  4. Hardware or Initialization Error: Less common, but a rare hardware error or an issue during the DPU’s boot process could cause this low-level resource creation to fail.

As this is an example of the DPA application code, the following guidance was provided on the main page of the “DOCA Programming Guide”

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image959×583 78.9 KB

Please submit your question to the email address provided.

Thank you and regards,

~NVIDIA Networking Technical Support

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