No /dev/pka/* devices

[gbryant-arm]

Hi,
Looks like the PKA library is expecting a device under /dev/pka but there aren't any.
I'm running on a Bluefield 2 (5.4.0-1068-bluefield) and (successfully?) inserted the mlxbf_pka module:

$ lsmod | grep -i pka
mlxbf_pka             118784  0

$ dmesg | grep -i pka
[775369.917272] PKA_DRIVER: version: v3.0