RHEV3 with Hardware iSCSI (qla4xxx)

I'm conducting some tests of RHEV3 and have run into problems using hardware iSCSI cards. If I setup the device and let the qla4xxx driver load, the LUN appears as a drive in the system (say /dev/sdc), but I don't see how to tell RHEV-M to use this. It seems to want a pingable device, but I can't ping through this driver (only the qla3xxx driver).

I can disable/unload the qla4xxx driver and use qla3xxx in it's place, but this seems to treat the device as a simple network card (so software iSCSI).

So any suggestions on how to use qla4xxx with RHEV-M?