I'm new to dpdk and using dpdk-stable-21.11.5 on Ubuntu 22.04. I have compiled and installed dpdk according to the official documentation. I bind two network devices to the vfio-pci driver. When I try to run dpdk-testpmd, it shows that it could not detect any Ethernet devices.
Network devices using DPDK-compatible driver
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0000:03:00.0 'Device 125c' drv=vfio-pci unused=igc,igb_uio,uio_pci_generic
0000:04:00.0 'Device 125c' drv=vfio-pci unused=igc,igb_uio,uio_pci_generic
Network devices using kernel driver
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0000:02:00.0 'Device 125c' if=enp2s0 drv=igc unused=igb_uio,vfio-pci,uio_pci_generic *Active*
0000:05:00.0 'Device 125c' if=enp5s0 drv=igc unused=igb_uio,vfio-pci,uio_pci_generic
No 'Baseband' devices detected
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No 'Crypto' devices detected
============================
No 'DMA' devices detected
=========================
No 'Eventdev' devices detected
==============================
No 'Mempool' devices detected
=============================
No 'Compress' devices detected
==============================
No 'Misc (rawdev)' devices detected
===================================
No 'Regex' devices detected
===========================
EAL: Detected CPU lcores: 4
EAL: Detected NUMA nodes: 1
EAL: Detected static linkage of DPDK
EAL: Multi-process socket /var/run/dpdk/rte/mp_socket
EAL: Selected IOVA mode 'VA'
EAL: VFIO support initialized
TELEMETRY: No legacy callbacks, legacy socket not created
testpmd: No probed ethernet devices
testpmd: create a new mbuf pool <mb_pool_0>: n=171456, size=2176, socket=0
testpmd: preferred mempool ops selected: ring_mp_mc
Done
No commandline core given, start packet forwarding
io packet forwarding - ports=0 - cores=0 - streams=0 - NUMA support enabled, MP allocation mode: native
io packet forwarding packets/burst=32
nb forwarding cores=1 - nb forwarding ports=0
Press enter to exit
Telling cores to stop...
Waiting for lcores to finish...
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 0 RX-dropped: 0 RX-total: 0
TX-packets: 0 TX-dropped: 0 TX-total: 0
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Done.
Bye...
I have also tried the uio_pci_generic driver and igb_uio driver, and the results are still the same.