+| | ... | Pre-initialize driver based interfaces on each DUT.
+| |
+| | ... | *Arguments:*
+| | ... | - driver - NIC driver used in test [vfio-pci|avf|rdma-core].
+| | ... | Type: string
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Pre-initialize layer driver \| vfio-pci \|
+| |
+| | [Arguments] | ${driver}
+| |
+| | Run Keyword | Pre-initialize layer ${driver} on all DUTs
+
+| Pre-initialize layer vfio-pci on all DUTs
+| | [Documentation]
+| | ... | Pre-initialize vfio-pci driver by adding related sections to startup
+| | ... | config on all DUTs.
+| |
+| | ${index}= | Get Index From List | ${TEST TAGS} | DPDK
+| | Run Keyword If | ${index} >= 0 | Return From Keyword
+| | FOR | ${dut} | IN | @{duts}
+| | | Stop VPP Service | ${nodes['${dut}']}
+| | | PCI Driver Unbind List | ${nodes['${dut}']} | @{${dut}_pf_pci}
+| | | Run keyword | ${dut}.Add DPDK Dev | @{${dut}_pf_pci}
+| | | Run Keyword If | ${dpdk_no_tx_checksum_offload}
+| | | ... | ${dut}.Add DPDK No Tx Checksum Offload
+| | | Run Keyword | ${dut}.Add DPDK Log Level | debug
+| | | Run Keyword | ${dut}.Add DPDK Uio Driver | vfio-pci
+| | | Run Keyword | ${dut}.Add DPDK Dev Default RXQ | ${rxq_count_int}
+| | | Run Keyword If | not ${jumbo}
+| | | ... | ${dut}.Add DPDK No Multi Seg
+| | | Run Keyword If | ${nic_rxq_size} > 0
+| | | ... | ${dut}.Add DPDK Dev Default RXD | ${nic_rxq_size}
+| | | Run Keyword If | ${nic_txq_size} > 0
+| | | ... | ${dut}.Add DPDK Dev Default TXD | ${nic_txq_size}
+| | | Run Keyword If | '${crypto_type}' != '${None}'
+| | | ... | ${dut}.Add DPDK Cryptodev | ${thr_count_int}
+| | END
+| | ${_vlan_strip} | ${value}= | Run Keyword And Ignore Error
+| | ... | Variable Should Exist | ${vlan_strip_off}
+| | Run keyword If | '${_vlan_strip}' == 'PASS' and ${duts_count} == 2
+| | ... | Add DPDK VLAN strip offload switch off between DUTs
+
+| Pre-initialize layer avf on all DUTs
+| | [Documentation]
+| | ... | Pre-initialize avf driver. Currently no operation.
+| |
+| | No operation
+
+| Pre-initialize layer rdma-core on all DUTs
+| | [Documentation]
+| | ... | Pre-initialize rdma-core driver.
+| |
+| | FOR | ${dut} | IN | @{duts}
+| | | Set Interface Flow Control
+| | | ... | ${nodes['${dut}']} | ${${dut}_pf_pci} | rx="off" | tx="off"
+| | | Set PCI Parameter
+| | | ... | ${nodes['${dut}']} | ${${dut}_pf_pci} | key="68.w" | value="3BCD"
+| | END
+
+| Pre-initialize layer mlx5_core on all DUTs
+| | [Documentation]
+| | ... | Pre-initialize mlx5_core driver.
+| |
+| | FOR | ${dut} | IN | @{duts}
+| | | Run Keyword If | ${jumbo}
+| | | ... | Set Interface MTU | ${nodes['${dut}']} | ${${dut}_pf_pci} | mtu=9200
+| | | ... | ELSE
+| | | ... | Set Interface MTU | ${nodes['${dut}']} | ${${dut}_pf_pci} | mtu=1500
+| | | Set Interface Flow Control
+| | | ... | ${nodes['${dut}']} | ${${dut}_pf_pci} | rx="off" | tx="off"
+| | | Set PCI Parameter
+| | | ... | ${nodes['${dut}']} | ${${dut}_pf_pci} | key="68.w" | value="3BCD"
+| | END
+
+| Initialize layer driver
+| | [Documentation]
+| | ... | Initialize driver based interfaces on all DUT. Interfaces are
+| | ... | brought up.
+| |
+| | ... | *Arguments:*
+| | ... | - driver - NIC driver used in test [vfio-pci|avf|rdma-core].
+| | ... | Type: string
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Initialize layer driver \| vfio-pci \|
+| |
+| | [Arguments] | ${driver}
+| |
+| | FOR | ${dut} | IN | @{duts}
+| | | Initialize layer driver on node | ${dut} | ${driver}
+| | END
+| | Set Test Variable | ${int} | vf
+| | Set interfaces in path up
+
+| Initialize layer driver on node
+| | [Documentation]
+| | ... | Initialize driver based interfaces on DUT.
+| |
+| | ... | *Arguments:*
+| | ... | - dut - DUT node.
+| | ... | Type: string
+| | ... | - driver - NIC driver used in test [vfio-pci|avf|rdma-core].
+| | ... | Type: string
+| |
+| | ... | *Example:*
+| |
+| | ... | \| Initialize layer driver \| DUT1 \| vfio-pci \|
+| |
+| | [Arguments] | ${dut} | ${driver}
+| |
+| | FOR | ${pf} | IN RANGE | 1 | ${nic_pfs} + 1
+| | | ${_vf}=
+| | | ... | Copy List | ${${dut}_${int}${pf}}
+| | | ${_ip4_addr}=
+| | | ... | Copy List | ${${dut}_${int}${pf}_ip4_addr}
+| | | ${_ip4_prefix}=
+| | | ... | Copy List | ${${dut}_${int}${pf}_ip4_prefix}
+| | | ${_mac}=
+| | | ... | Copy List | ${${dut}_${int}${pf}_mac}
+| | | ${_pci}=
+| | | ... | Copy List | ${${dut}_${int}${pf}_pci}
+| | | ${_vlan}=
+| | | ... | Copy List | ${${dut}_${int}${pf}_vlan}
+| | | Set Test Variable
+| | | ... | ${${dut}_vf${pf}} | ${_vf}
+| | | Set Test Variable
+| | | ... | ${${dut}_vf${pf}_ip4_addr} | ${_ip4_addr}
+| | | Set Suite Variable
+| | | ... | ${${dut}_vf${pf}_ip4_prefix} | ${_ip4_prefix}
+| | | Set Test Variable
+| | | ... | ${${dut}_vf${pf}_mac} | ${_mac}
+| | | Set Test Variable
+| | | ... | ${${dut}_vf${pf}_pci} | ${_pci}
+| | | Set Test Variable
+| | | ... | ${${dut}_vf${pf}_vlan} | ${_vlan}
+| | | Run Keyword | Initialize layer ${driver} on node | ${dut} | ${pf}
+| | END
+
+| Initialize layer vfio-pci on node
+| | [Documentation]
+| | ... | Initialize vfio-pci interfaces on DUT on NIC PF.
+| | ... | Currently no operation.
+| |