HBAs by JMICRON have an additional "Controller Control Register" that must be programmed to switch the ports into AHCI mode.  Do so.
HBAs by JMICRON have an additional "Controller Control Register" that
must be programmed to switch the ports into AHCI mode.  Do so.

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars