Mellanox

RHEL7.4

Run

yum install numactl

cd /root
cp /usr/downloads/MLNX_OFED_LINUX-4.1-1.0.2.0-rhel7.4-x86_64.tgz .
gunzip MLNX_OFED_LINUX-4.1-1.0.2.0-rhel7.4-x86_64.tgz
tar xvf MLNX_OFED_LINUX-4.1-1.0.2.0-rhel7.4-x86_64.tar
rm MLNX_OFED_LINUX-4.1-1.0.2.0-rhel7.4-x86_64.tar
cd MLNX_OFED_LINUX-4.1-1.0.2.0-rhel7.4-x86_64
./mlnxofedinstall --force

It will install everything and print following:

Please reboot your system for the changes to take effect.
To load the new driver, run:
/etc/init.d/openibd restart

RHEL7

Run

yum install numactl

cd /root
cp /usr/downloads/mlnx-en-3.1-1.0.4.tgz .
gunzip mlnx-en-3.1-1.0.4.tgz
tar xvf mlnx-en-3.1-1.0.4.tar
rm mlnx-en-3.1-1.0.4.tar
cd mlnx-en-3.1-1.0.4
./install.sh

#Run command
# /sbin/connectx_port_config --show
#to display port settings, change it with
# /sbin/connectx_port_config 
#setting all ports to 'eth'.

Configure new 'eth' port as desired (left port seems p6p2 now ...). Use for example text interface to NetworkManager called 'nmtui'. Set 'Manual', IP address with mask (like 129.57.167.41/24) and gateway (like 129.57.167.99) only, ignore the rest. Reboot machine, unplug copper ethernet when starts booting, it should come back using fiber.

RHEL6

Run

yum install numactl

cd /root
cp /usr/downloads/MLNX_OFED_LINUX-3.1-1.0.3-rhel6.7-x86_64.iso .
mkdir tmp
mount -o loop MLNX_OFED_LINUX-3.1-1.0.3-rhel6.7-x86_64.iso tmp
cd tmp
./mlnxofedinstall

Run command (as instructed by installation process):

/etc/init.d/openibd restart

Run command

/sbin/connectx_port_config --show

to display port settings, change it with

/sbin/connectx_port_config 

setting all ports to 'eth'.

After it installed, run /usr/bin/system-config-network and add new device eth0 as manual network with appropriate settings (do NOT specify DNS servers !). Shutdown computer, unplug copper cable and start computer, 10G fiber link should become default one. OR, if fiber already plugged in, set BOOT=no for copper port currently in use, set BOOT=yes for fiber port, and reboot.