Live Update

Live update minimizes network interface downtime by performing online upgrade of the virtio-net controller without necessitating a full restart.

To perform a live update, the user must install a newer version of the controller either using the rpm or deb package (depending on the OS distro used). Run:

            

            
[dpu]# dpkg --force-all -i virtio-net-controller-x.y.z-1.mlnx.aarch64.deb
        

            

            
[dpu]# rpm -Uvh virtio-net-controller-x.y.z-1.mlnx.aarch64.rpm --force
        

Before staring live update, the following command can be used to check the version of the original and destination controllers:

            

            
[dpu]# virtnet version
        

Example output:

            

            
  {
    "Original Controller": "v1.9.13"
  },
  {
    "Destination Controller": "v1.9.14"
  }
        

If no errors occur, issue the following command to start the live update process:

            

            
[dpu]# virtnet update -s
        

During the update process, the following command may be used to check the update status:

            

            
[dpu]# virtnet update -t
        

Example output:

            

            
{
  "current status": "inactive",   # updating status, whether live update is finished or ongoing
  "last status": "success",       # last live update status
  "time_used (s)": 1.655439       # time cost for last live update
} 
        

During the update, some existing virtnet commands (e.g., list, query, modify) remain supported.

When the update process completes successfully, the command virtnet update status reflects the status accordingly