$ cat tpa.cfg 
net {
    name = bond1
    ip   = xxxx
    gw   = xxxx
    mask = 255.255.255.128
    bonding = eth0 eth1
}

log {
    level = 3
    file  = ./log/tpa.log
}

dpdk {
    pci = 0000:18:00.0 0000:18:00.1
}

$ sudo techo 
EAL: Detected 128 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Detected static linkage of DPDK
EAL: Selected IOVA mode 'VA'
EAL: No available hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:18:00.0 (socket 0)
mlx5_pci: port 0 verbs maximum priority: 0 expected 8/16
mlx5_pci: probe of PCI device 0000:18:00.0 aborted after encountering an error: Operation not supported
common_mlx5: Failed to load driver = mlx5_pci.

EAL: Requested device 0000:18:00.0 cannot be used
EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:18:00.1 (socket 0)
mlx5_pci: unable to recognize master/representors on the IB device with multiple ports
common_mlx5: Failed to load driver = mlx5_pci.

EAL: Requested device 0000:18:00.1 cannot be used
EAL: Bus (pci) probe failed.
Invalid port_id=0
:: listening on port 5678 ...

$ cat tpa.cfg 
net {
    name = bond1
    ip   = xxxxx
    gw   = xxxx
    mask = 255.255.255.128
    bonding = eth0 eth1
}

log {
    level = 3
    file  = ./log/tpa.log
}

dpdk {
    pci = 0000:5e:00.0 0000:5e:00.1
}

$ sudo swing -z xxxxx 5678
EAL: Detected 32 lcore(s)
EAL: Detected 2 NUMA nodes
EAL: Detected static linkage of DPDK
EAL: Selected IOVA mode 'PA'
EAL: No available hugepages reported in hugepages-1048576kB
EAL: Probing VFIO support...
EAL: Probe PCI driver: mlx5_pci (15b3:1015) device: 0000:5e:00.0 (socket 0)
mlx5_pci: No available register for Sampler.
EAL: Probe PCI driver: mlx5_pci (15b3:1015) device: 0000:5e:00.1 (socket 0)
mlx5_pci: no Verbs device matches PCI device 0000:5e:00.1, are kernel drivers loaded?
common_mlx5: Failed to load driver = mlx5_pci.

EAL: Requested device 0000:5e:00.1 cannot be used
:: connecting to xxxxx:5678 ...failed to read: Connection refused