I figured this out by adding if_myk_load=YES to /boot/loader.conf. I
don't know if this is where it's supposed to go, but it works.
Now the million-dollar question: can I do a firmware upgrade without
loosing this entry in the /boot/loader.conf? I'm confident the .ko
files I copied to
OK, after many problems, like couldn't install because of no known NICs,
installing NICs in a 1U case with no riser, figuring out how to mount,
if_myk.ko requiring libmbpool.ko, etc., I finally got the drivers
installed with kldload and they appear to work.
Until I rebooted. The drivers don't