I'm writing a custom MP to handle NVMe drives.  It should be able to use the fast path just like the HPP does.  I defined the entry point to a function pointer as directed to do in the "Pluggable Storage Architecture (PSA) Programming Guide".

So now my vmk_ScsiDeviceOps has both the .issueCommandDirect and the .startCommand.  However all I/Os are coming via the .startCommand.

Is there something more I need to do to force ESXi to make use of the fast path?