9801 ap_driver.h and ESC_AP_DRIVER should be removed Reviewed by: Reviewed by: Reviewed by: Approved by:

These are bits from ancient Alternate Pathing.  The last release of Alternate Pathing was AP 2.3.1 (AP 2.4 was developed internally but never released), and supported Solaris 8 (and maybe 9).  Alternate Pathing has never been supported on Solaris 10 or 11, and cannot function on any newer system due to it's use of contract private symbols that were removed.  (AP was functionally replaced by mpxio for storage, and the aggr and IPMP modules for networking.)
(Note: I was one of the two engineers working on the Alternate Pathing product, up to and including it's final release.)