TWSD-1565 MB 5070 NIC-Front Panel Mapping for new CASwell APV7900, APV9900 and APV11900

Review Request #1319 — Created Jan. 20, 2026 and submitted — Latest diff uploaded

Information
weikai
APV10
rel_apv_10_7
TWSD-1565
Reviewers
kevin.poh, mingji, stevenku 
Originally arranged according to the PCI order, but this causes confusion if the NIC order is changed arbitrarily.


Root cause

1. Adjust the NIC layout to handle the load of dual parallel CPUs.

2. The original NIC mapping method cannot guarantee correct order if any changes occur under a CPU-balanced layout.

3. The number of NICs has reached the DPDK management limit.


Solution

1 & 2. Scan fixed PCI addresses based on the corresponding front-panel positions, and dynamically generate the port mapping results.

3. Modify the compilation parameters for DPDK.


Other

Add new model(s).

- Array APV 7900 N → array_id=907902

- Array APV 9900 N → array_id=909902

- Array APV 11900 N → array_id=911902
    

  1. Plug in the network cables in order, and compare with the results from the show interface command.
    2. 

  2. Use the N‑series license key instead of the original one.
    
TW-Lab can obtain it from http://192.168.100.105/apv.html
    3.
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