Installing the MLNX_OFED Driver of the CX6 NIC

Obtaining the Installation Package

MLNX_OFED_LINUX-5.5-1.0.3.2-openeuler20.03-aarch64.tgz is used as an example.

Figure 1 Driver package

1. Decompress the installation package.

   1	tar -zxvf MLNX_OFED_LINUX-5.5-1.0.3.2-openeuler20.03-aarch64.tgz

   Figure 2 Decompressing the installation package
   
2. Check the readme file and install dependencies.

   1	yum install perl pciutils python gcc-gfortran libxml2-python tcsh libnl.i686 libnl expat glib2 tcl libstdc++ bc tk gtk2 atk cairo numactl pkgconfig ethtool

3. Install the driver.

   1	./mlnxofedinstall

   Figure 3 Installing the driver
   
4. Reboot the server after the installation is complete.

   1

   reboot

Configuration

1. Set OpenSM to support virtualization .

   1	vim /etc/opensm/opensm.conf

   Add the parameter for enabling virtualization to the file.

   1	virt_enabled 2 # Enable virtualization.

   

   Parameter description:

   The parameter has the following configuration options:

   0: Ignore Virtualization - No virtualization support

   1: Disable Virtualization - Disable virtualization on all virtualization supporting ports

   2: Enable Virtualization - Enable virtualization on all virtualization supporting ports

2. Enable single-root I/O virtualization (SR-IOV).

   1

   mst start

   Figure 4 Enabling SR-IOV
   

   1	mst status

   Figure 5 Viewing service status
   
3. Query the device status.

   1	mlxconfig -d /dev/mst/mt4125_pciconf0 q

   Figure 6 NIC status
   

   NUM_OF_VFS indicates the number of virtual functions (VFs) provided by the VM, and SRIOV_EN indicates whether to enable SR-IOV.

   The command to adjust the settings is as follows:

   1	mlxconfig -d /dev/mst/mt4125_pciconf0 set SRIOV_EN=1 NUM_OF_VFS=4

   Figure 7 Changing the number of VFs
   

   Restart the server.

4. Adapt to the device.

   1	mlxfwreset --device /dev/mst/mt4125_pciconf0 reset

   Figure 8 Adapting to the NIC
   
5. Set the VF parameter for the NIC.

   1	echo 2 >/sys/class/net/enp125s0f3/device/sriov_numvfs

6. Check whether the installation is successful.

   If common commands, such as ifconfig, ip a, lspci, and ibdev2netdev, can be used, the installation is successful.

   Figure 9 Running the lspci command
   
   Figure 10 Running the ibdev2netdev command