mpathadm list mpath-support
mpath-support:  libmpscsi_vhci.so

Choose the mpath support name from the output list

mpathadm show mpath-support libmpscsi_vhci.so
mpath-support:  libmpscsi_vhci.so
      Vendor:  Sun Microsystems
      Driver Name:  scsi_vhci
      Default Load Balance:  round-robin
      Supported Load Balance Types:  
              round-robin
              logical-block
      Allows To Activate Target Port Group Access:  yes
      Allows Path Override:  no
      Supported Auto Failback Config:  1
      Auto Failback:  on
      Failback Polling Rate (current/max):  0/0
      Supported Auto Probing Config:  0
      Auto Probing:  NA
      Probing Polling Rate (current/max):  NA/NA
      Supported Devices:
              Vendor:  SUN     
              Product:  T300            
              Revision:  
              Supported Load Balance Types:
                      round-robin