"High IOPs queues : disabled" using LSI 9207

[nyxynyx]

I was looking through /var/lib/syslog on a Ubuntu 19.10 machine that has a LSI 9207-8i HBA and noticed the line

Mar 25 21:43:17 db0 kernel: [ 2.931849] mpt2sas_cm0: High IOPs queues : disabled

Is it possible to enable High IOPs queues in order to improve IOPS performance of drives connected to this HBA?

 

[EffrafaxOfWug]

Requirements for high IOPS queues are in this kernel patch; basically:

- HBA is an AERO controller,
- MSIXs vector supported by the HBA is 128,
- Total CPU count in the system more than high iops queue count,
- Loaded driver with default max_msix_vectors module parameter and
- System booted in non kdump mode.

I've no idea what an aero controller is, but chances are also you don't have more CPUs than you have IO queues.