Hi I am trying to bind Intel X722 NICs, but it is not working in Ubuntu 18.04 *root@hyper02:~# ./dpdk-devbind.py -s* Network devices using DPDK-compatible driver ============================================ <none> Network devices using kernel driver =================================== 0000:1c:00.0 'Ethernet Controller 10G X550T' if=eno1 drv=ixgbe unused=vfio-pci 0000:1c:00.1 'Ethernet Controller 10G X550T' if=eno2 drv=ixgbe unused=vfio-pci 0000:60:00.0 'Ethernet Connection X722 for 10GbE SFP+' if=enp96s0f0 drv=i40e unused=vfio-pci 0000:60:00.1 'Ethernet Connection X722 for 10GbE SFP+' if=enp96s0f1 drv=i40e unused=vfio-pci . . . . *root@hyper02:~# ./dpdk-devbind.py -b vfio-pci 0000:60:00.0 *Error: bind failed for 0000:60:00.0 - Cannot bind to driver vfio-pci Error: unbind failed for 0000:60:00.0 - Cannot open /sys/bus/pci/drivers//unbind What am I missing? *root@hyper02:~# uname -a* Linux hyper02 5.0.0-44-generic #48~18.04.1-Ubuntu SMP Wed Mar 18 09:11:43 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux *root@hyper02:~# cat /proc/cmdline *BOOT_IMAGE=/vmlinuz-5.0.0-44-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro default_hugepagesz=2M hugepagesz=2M hugepages=53248 transparent_hugepage=never iommu=pt intel_iommu=on isolcpus=16,17,34,35,52,53,70,71 *root@hyper02:~# modinfo vfio_pci* filename: /lib/modules/5.0.0-44-generic/kernel/drivers/vfio/pci/vfio-pci.ko description: VFIO PCI - User Level meta-driver author: Alex Williamson <alex.williamson@redhat.com> license: GPL v2 version: 0.2 srcversion: 96BFF0777823471DD68104B depends: vfio,irqbypass,vfio_virqfd retpoline: Y intree: Y name: vfio_pci vermagic: 5.0.0-44-generic SMP mod_unload signat: PKCS#7 signer: sig_key: sig_hashalgo: md4 parm: ids:Initia # cat /proc/cmdline BOOT_IMAGE=/vmlinuz-5.0.0-44-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro default_hugepagesz=2M hugepagesz=2M hugepages=53248 transparent_hugepage=never iommu=pt intel_iommu=on isolcpus=16,17,34,35,52,53,70,71 l PCI IDs to add to the vfio driver, format is "vendor:device[:subvendor[:subdevice[:class[:class_mask]]]]" and multiple comma separated entries can be specified (string) parm: nointxmask:Disable support for PCI 2.3 style INTx masking. If this resolves problems for specific devices, report lspci -vvvxxx to linux-pci@vger.kernel.org so the device can be fixed automatically via the broken_intx_masking flag. (bool) parm: disable_vga:Disable VGA resource access through vfio-pci (bool) parm: disable_idle_d3:Disable using the PCI D3 low power state for idle, unused devices (bool) *lspci -v* 60:00.0 Ethernet controller: Intel Corporation Ethernet Connection X722 for 10GbE SFP+ (rev 04) Subsystem: Intel Corporation Ethernet Network Adapter X722-2 Flags: fast devsel, IRQ 36, NUMA node 0 Memory at ba000000 (64-bit, prefetchable) [size=16M] Memory at bc008000 (64-bit, prefetchable) [size=32K] Expansion ROM at bc280000 [disabled] [size=512K] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+ Capabilities: [70] MSI-X: Enable- Count=129 Masked- Capabilities: [a0] Express Endpoint, MSI 00 Capabilities: [e0] Vital Product Data Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number d8-b3-8e-ff-ff-1e-f2-f8 Capabilities: [150] Alternative Routing-ID Interpretation (ARI) Capabilities: [160] Single Root I/O Virtualization (SR-IOV) Capabilities: [1a0] Transaction Processing Hints Capabilities: [1b0] Access Control Services Kernel modules: i40e Thanks a lot JM