Hi Stephen, I have checked related iommu_groups: $ readlink 0000\:01\:00.0/iommu_group ../../../../kernel/iommu_groups/16 $ readlink 0000\:02\:00.0/iommu_group ../../../../kernel/iommu_groups/17 $ readlink 0000\:03\:00.0/iommu_group ../../../../kernel/iommu_groups/18 $ readlink 0000\:04\:00.0/iommu_group ../../../../kernel/iommu_groups/19 $ readlink 0000\:05\:00.0/iommu_group ../../../../kernel/iommu_groups/20 It seems that the adapters belongs to different iommu_groups. At 2022-09-16 23:10:59, "Stephen Hemminger" wrote: >On Wed, 14 Sep 2022 11:18:11 +0800 (CST) >F32 wrote: > >> 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 > >Check the IOMMU groups on that system. >Often multiple PCI devices (especially multi-port NICs) share a single IOMMU >group and VFIO does not allow using these devices unless all subdevices >in the group are unbound from the kernel driver.