fmc policer core pool

[ysack]

I'm using SDK 2.0 fmc on T4240RDB board. 

When I use policer as shown below, I see that all traffic passes through a single CPU core. How can I prevent this situation?

<policer name="policer2">

<algorithm>rfc2698</algorithm>

<color_mode>color_blind</color_mode>

<CIR>12000</CIR>

<EIR>34000</EIR>

<CBS>56000</CBS>

<EBS>78000</EBS>

<unit>packet</unit>

<action condition="on-red" type="drop"/>

[peter_jone]

It sounds like you’re encountering a common issue where traffic isn’t being properly distributed across multiple cores. To troubleshoot, consider verifying if your SDK or hardware supports multi-core load balancing for policers or if additional configuration is needed to enable it. Also, reviewing examples related to Cook County arrest could offer insights on managing resource distribution efficiently. This approach might help optimize your setup for better performance.

[yipingwang]

Please refer to the following explanation.

This is because in DPAA1, each Ethernet interface uses one pool channel across all software portals and also one dedicated channel for each CPU. In Linux Kernel, PCD Frame queues use dedicated channels. You could refer to the section "5. Dedicated and Pool Channels Usage in Linux Kernel" in https://community.nxp.com/docs/DOC-329916 for details.

In the multiple flows scenario, after executing FMC policy, one flow will bind to one core.

[ysack]

Thank you very much for your reply. When I clicked on the link you gave, I saw the qman_driver.c file.
Can you help me on how to use this file?