Hello alkx,
Again thanks for your reply,
My device PSID is DEL1090001019 whose latest firmware 2.33.5040 (released on April 30th, 2015) is available on http://www.mellanox.com/page/firmware_table_dell?mtag=oem_firmware_download .
According to the Driver Compatibility Matrix in http://www.mellanox.com/page/mlnx_ofed_matrix?mtag=linux_sw_drivers the latest driver I can use is MLNX_OFED 2.4-1.0.0 .
From the PSID I mentioned, you can see that the firmware is released by Dell, however their own website ( Product Support | Dell US ) does not provide any firmware update and honestly I don't think they will provide a newer firmware anytime soon.
Therefore I was wondering if it is not possible to release an updated version of MOFED-2.4 in order to include kernel 3.19 since it is the standard kernel for Ubuntu 14.04.3 (Long Term Release) and since it would solve other people's problem as well (MLNX_OFED install failed at Ubuntu 14.04.2).
Thanks,