Linux + how to verify mirror configuration on linux red-hat with cfggen utility

Question

I find the utility cfggen I want to verify disk mirror configuration on my blade machine with this utility so I run the utility as the following

./cfggen controller DISPLAY

but please advice how to find the controller number , in order to run cfggen with real controller name

from cfggen docs:

   NAME
   cfggen  -  Configures the Integrated Raid (IR) functionality of the HP
   SAS controllers used in LSI-1068-based HP SAS controllers.

   SYNOPSIS
   cfggen controller# command parameters

          controller#
                    A unique controller number is assigned by the utility
                    to each PCI function found in the system.   Only  PCI
                    functions  on  controller  chips  recognized  by this
                    utility are assigned numbers.




  ./cfggen 
     LSI Logic IR Configuration Utility 2.00.30
     cfggen <controller #> <command> <parameters> ...
     where <controller #> is:
     Number between 0 and 255