Hello,
Currently, following combination is supported.
Firmware 1.5.4 + Ubuntu 12.04.2 + C220M3/C240 M3 + VIC 1225 / 1225T (enic only) with inbox drivers.
Even though C22 is not curently supported, have you tried Ubuntu 12.04 with C22 + 1.5.4 firmware ?
Padma