iscsi wmi event

Hi,

I have a storport miniport driver with bus type set to iscsi in the inf.
Im trying to send a WMI event using storportnotification().

I set up WNODE_SINGLE_INSTANCE structure and add the payload at the member VariableData
and call storportnotification with scsibusid 0xff and give WNODE_SINGLE_INSTANCE as the WMIEvent.
If i add MSiSCSI_Eventlog as the payload and call this routine, i dont get the event in the consumer.

But if i set the bustype to FC in the inf and set MSFC_TargetEvent as the payload, i get the event in the consumer.
Is it like iscsi specific events are not supported by storport? Any kind of directions would help.

Thanks
Vijay