Update connectx3 card's firmware under esxi 5.1

I just updated to the latest firmware on our Linux systems for the vpi cards. What is the correct method to do this under esxi 5.1? it seems none of the mft tools are available. I have mellanox ofed 1.8.1 installed on the esxi servers

** just an update, I ended up just booting off of a Ubuntu live cd and updating the firmware that way.