You can create a file in /oem/mtu.yaml and do something like this:

name: "Set MTU and Queuing"
      stages:
        boot:
          - commands:
            - /sbin/ip link set dev ens1f0 mtu 9000
            - /sbin/ip link set dev ens1f1 mtu 9000
            - /sbin/ip link set dev ens1f0 txqueuelen 20000
            - /sbin/ip link set dev ens1f1 txqueuelen 20000
            - /usr/sbin/ethtool -G ens1f0 rx 4078 tx 4078
            - /usr/sbin/ethtool -G ens1f1 rx 4078 tx 4078
            - /sbin/ip link set dev eno1 mtu 9000
            - /sbin/ip link set dev eno2 mtu 9000
            - /sbin/ip link set dev eno3 mtu 9000
            - /sbin/ip link set dev eno4 mtu 9000
            - /sbin/ip link set dev eno1 txqueuelen 2048
            - /sbin/ip link set dev eno2 txqueuelen 2048
            - /sbin/ip link set dev eno3 txqueuelen 2048
            - /sbin/ip link set dev eno4 txqueuelen 2048
            - /sbin/ip link set dev mgmt-bo mtu 9000
            - /usr/sbin/ethtool -G eno1 rx 2047 tx 511 rx-jumbo 1023
            - /usr/sbin/ethtool -G eno2 rx 2047 tx 511 rx-jumbo 1023
            - /usr/sbin/ethtool -G eno3 rx 2047 tx 511 rx-jumbo 1023
            - /usr/sbin/ethtool -G eno4 rx 2047 tx 511 rx-jumbo 1023