[HPDD-discuss] Lustre 2.2 on RHEL 6.4 with infiniband

Hi, I plan to install lustre 2.2 on RHEL 6.4 with infiniband. Does i have to use the driver include in RHEL or install mellanox OFED ? If i'm not wrong, RPM from whamcloud are built against infiniband driver included in RHEL6. Is there something specific to install ? Thanks.