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How do I retrieve DPAA1 / fman statistics ?

Question asked by Tim Kordas on Sep 19, 2019
Latest reply on Sep 20, 2019 by Yiping Wang

I'm running linux 4.14.16 on an ls1043a. I recently enabled a DPAA configuration (via the fmc command with appropriate policy and configurations). For some cases, I see an improvement in packet forwarding throughput (and a corresponding reduction in out-of-order packet delivery). How can I get more statistics out of the frame-manager / queue-manager ?

 

Ideally, I'd like to be able to see a counter of how many frames get assigned to queues based on the classification in the policy (preferably broken down by queue ?).

 

I've looked at the stuff in /sys/kernel/debug/qman/fqd (and documented in the QorIQ SDK); but maybe I've missed something.

 

I'd even just like a boolean flag "DPAA got a config from FMC." I'm sure I must be missing something.

 

My impression is that changing the fmc/dpaa1 configuration during operation is either unsupported or is not-recommended ? Is that true ?

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