Hi, Recently I'm testing dpdk on a mini PC with N5095 CPU and 5 I225-V ethernet adapters under Ubuntu Server 22.04.1. $ uname -r 5.15.0-47-generic $ cat /etc/default/grub | grep GRUB_CMDLINE_LINUX_DEFAULT GRUB_CMDLINE_LINUX_DEFAULT="default_hugepagesz=1G hugepagesz=1G hugepages=16 intel_iommu=on iommu=pt" $ update-grub $ reboot $ dmesg | grep DMAR [ 0.016399] ACPI: DMAR 0x00000000787D6000 000088 (v02 INTEL EDK2 00000002 01000013) [ 0.016443] ACPI: Reserving DMAR table memory at [mem 0x787d6000-0x787d6087] [ 0.029273] DMAR: IOMMU enabled [ 0.093267] DMAR: Host address width 39 [ 0.093269] DMAR: DRHD base: 0x000000fed90000 flags: 0x0 [ 0.093276] DMAR: dmar0: reg_base_addr fed90000 ver 4:0 cap 1c0000c40660462 ecap 49e2ff0505e [ 0.093281] DMAR: DRHD base: 0x000000fed91000 flags: 0x1 [ 0.093287] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap d2008c40660462 ecap f050da [ 0.093291] DMAR: RMRR base: 0x0000007b800000 end: 0x0000007fbfffff [ 0.093296] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 1 [ 0.093299] DMAR-IR: HPET id 0 under DRHD base 0xfed91000 [ 0.093301] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping. [ 0.095158] DMAR-IR: Enabled IRQ remapping in x2apic mode [ 0.288306] pci 0000:00:02.0: DMAR: Skip IOMMU disabling for graphics [ 0.372113] DMAR: No ATSR found [ 0.372115] DMAR: No SATC found [ 0.372118] DMAR: IOMMU feature fl1gp_support inconsistent [ 0.372120] DMAR: IOMMU feature pgsel_inv inconsistent [ 0.372122] DMAR: IOMMU feature nwfs inconsistent [ 0.372124] DMAR: IOMMU feature pds inconsistent [ 0.372125] DMAR: IOMMU feature eafs inconsistent [ 0.372127] DMAR: IOMMU feature prs inconsistent [ 0.372129] DMAR: IOMMU feature nest inconsistent [ 0.372130] DMAR: IOMMU feature mts inconsistent [ 0.372132] DMAR: IOMMU feature sc_support inconsistent [ 0.372134] DMAR: IOMMU feature dev_iotlb_support inconsistent [ 0.372136] DMAR: dmar0: Using Queued invalidation [ 0.372141] DMAR: dmar1: Using Queued invalidation [ 0.373075] DMAR: Intel(R) Virtualization Technology for Directed I/O $ lspci lspci 00:00.0 Host bridge: Intel Corporation Device 4e24 00:02.0 VGA compatible controller: Intel Corporation JasperLake [UHD Graphics] (rev 01) 00:04.0 Signal processing controller: Intel Corporation Dynamic Tuning service 00:08.0 System peripheral: Intel Corporation Device 4e11 00:14.0 USB controller: Intel Corporation Device 4ded (rev 01) 00:14.2 RAM memory: Intel Corporation Device 4def (rev 01) 00:15.0 Serial bus controller: Intel Corporation Serial IO I2C Host Controller (rev 01) 00:15.2 Serial bus controller: Intel Corporation Device 4dea (rev 01) 00:16.0 Communication controller: Intel Corporation Management Engine Interface (rev 01) 00:17.0 SATA controller: Intel Corporation Device 4dd3 (rev 01) 00:19.0 Serial bus controller: Intel Corporation Device 4dc5 (rev 01) 00:19.1 Serial bus controller: Intel Corporation Device 4dc6 (rev 01) 00:1c.0 PCI bridge: Intel Corporation Device 4db8 (rev 01) 00:1c.4 PCI bridge: Intel Corporation Device 4dbc (rev 01) 00:1c.5 PCI bridge: Intel Corporation Device 4dbd (rev 01) 00:1c.6 PCI bridge: Intel Corporation Device 4dbe (rev 01) 00:1c.7 PCI bridge: Intel Corporation Device 4dbf (rev 01) 00:1e.0 Communication controller: Intel Corporation Device 4da8 (rev 01) 00:1e.3 Serial bus controller: Intel Corporation Device 4dab (rev 01) 00:1f.0 ISA bridge: Intel Corporation Device 4d87 (rev 01) 00:1f.3 Audio device: Intel Corporation Device 4dc8 (rev 01) 00:1f.4 SMBus: Intel Corporation JaserLake SMBus (rev 01) 00:1f.5 Serial bus controller: Intel Corporation JaserLake SPI (flash) Controller (rev 01) 01:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03) 02:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03) 03:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03) 04:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03) 05:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03) (after huge page setup) $ python3 dpdk-hugepages.py -s Node Pages Size Total 0 1607 2Mb 3Gb Hugepages mounted on /dev/hugepages /mnt/huge $ ifconfig enp2s0 down $ ifconfig enp3s0 down $ python3 dpdk-devbind.py --bind=vfio-pci 0000:02:00.0 $ python3 dpdk-devbind.py --bind=vfio-pci 0000:03:00.0 $ python3 dpdk-devbind.py -s Network devices using DPDK-compatible driver ============================================ 0000:02:00.0 'Ethernet Controller I225-V 15f3' drv=vfio-pci unused=igc 0000:03:00.0 'Ethernet Controller I225-V 15f3' drv=vfio-pci unused=igc Network devices using kernel driver =================================== 0000:01:00.0 'Ethernet Controller I225-V 15f3' if=enp1s0 drv=igc unused=vfio-pci *Active* 0000:04:00.0 'Ethernet Controller I225-V 15f3' if=enp4s0 drv=igc unused=vfio-pci 0000:05:00.0 'Ethernet Controller I225-V 15f3' if=enp5s0 drv=igc unused=vfio-pci No 'Baseband' devices detected ============================== 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 =========================== After the above configuration, dpck setup should be done. Then I tried to run l2fwd. It generates the following errror messages: $ ./l2fwd EAL: Detected CPU lcores: 4 EAL: Detected NUMA nodes: 1 EAL: Detected shared linkage of DPDK EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: Selected IOVA mode 'VA' EAL: VFIO support initialized EAL: Using IOMMU type 1 (Type 1) EAL: Probe PCI driver: net_igc (8086:15f3) device: 0000:02:00.0 (socket 0) EAL: Releasing PCI mapped resource for 0000:02:00.0 EAL: Calling pci_unmap_resource for 0000:02:00.0 at 0x1100800000 EAL: Calling pci_unmap_resource for 0000:02:00.0 at 0x1100900000 EAL: Requested device 0000:02:00.0 cannot be used EAL: Using IOMMU type 1 (Type 1) EAL: Probe PCI driver: net_igc (8086:15f3) device: 0000:03:00.0 (socket 0) EAL: Releasing PCI mapped resource for 0000:03:00.0 EAL: Calling pci_unmap_resource for 0000:03:00.0 at 0x1100904000 EAL: Calling pci_unmap_resource for 0000:03:00.0 at 0x1100a04000 EAL: Requested device 0000:03:00.0 cannot be used TELEMETRY: No legacy callbacks, legacy socket not created MAC updating enabled EAL: Error - exiting with code: 1 Cause: No Ethernet ports - bye It seems that the I225 adapters are not recognized by DPDK. I can not see any detailed reasons why the adapters cannot be used. Any suggestions to fix this issue? Regards, F32