Matching mps driver in 11.1-STABLE to LSI 2008 firmware

[Evan Rowley]

Hello,

11.1-STABLE has many errors with my firmware v19 LSI 2008 IT-mode SAS HBA.
I believe there is a driver/firmware mis-match, but do not know the correct
version of the firmware to flash to.

I tried looking for an answer in the 11-stable driver source, but it wasn't
obvious: https://github.com/freebsd/freebsd/tree/stable/11/sys/dev/mps

Anyone know how to determine this? :)