User Manual

Driver FeaturesRev 2.2-1.0.1
Mellanox Technologies
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2. Add the above fields to the INI if they are missing.
3. Set the total_vfs parameter to the desired number if you need to change the num-
ber of total VFs.
4. Reburn the firmware using the mlxburn tool if the fields above were added to the
INI, or the
total_vfs parameter was modified.
If the mlxburn is not installed, please downloaded it from the Mellanox website
http://www
.mellanox.com > products > Firmware tools
mlxburn -fw ./fw-ConnectX3-rel.mlx -dev /dev/mst/mt4099_pci_cr0 -conf ./MCX341A-
XCG_Ax.ini
Step 7. Create the text file /etc/modprobe.d/mlx4_core.conf if it does not exist, otherwise delete its
contents.
Step 8. Insert an "option" line in the /etc/modprobe.d/mlx4_core.conf file to set the number of VFs.
the protocol type per port, and the allowed number of virtual functions to be used by the
physical function driver (probe_vf).
For example:
options mlx4_core num_vfs=5 port_type_array=1,2 probe_vf=1
1. If SR-IOV is supported, to enable SR-IOV (if it is not enabled), it is sufficient to set “sriov_en = true” in the INI.
2. If the HCA does not support SR-IOV, please contact Mellanox Support: [e-mail]