Actually, that was still showing the old version, taken before the reboot. It is now showing:
~ # esxcli software vib list | grep ixgbe
net-ixgbe 3.21.4-1OEM.550.0.0.1331820 Intel VMwareCertified 2014-09-22
But the option to add the FCoE adapter is still unavailable. The command 'esxcli fcoe nic list' still returns blank.