Don't try reading the SXP_PINS_DIFF on the 10160 and 12160 SCSI controllers. The registers seems to return 0 on my 12160 and there are some indications that it doesn't really exist.  This may fix panics seen with the 10160 on sparc64 machines.
Don't try reading the SXP_PINS_DIFF on the 10160 and 12160 SCSI controllers.
The registers seems to return 0 on my 12160 and there are some indications
that it doesn't really exist.  This may fix panics seen with the 10160 on
sparc64 machines.

ok krw@

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