<div dir="ltr">I built the current version of DPDK directly from <a href="http://dpdk.org">dpdk.org</a> after I installed the current OFED Mellanox driver set: * MLNX_OFED_LINUX-5.5-1.0.3.2-ubuntu20.04-x86_64.iso with ./install --dpdk I am using a Mellanox Technologies MT27710 Family [ConnectX-4 Lx] which is Ethernet only; there is no IB mode for this NIC. This is a MT_2420110034 board. However, when I run dpdk-testpmd I see "No Verbs device matches PCI device 0000:01:00.1, are kernel drivers loaded?" EAL: Detected CPU lcores: 16 EAL: Detected NUMA nodes: 1 EAL: Detected static linkage of DPDK EAL: Selected IOVA mode 'PA' EAL: No free 2048 kB hugepages reported on node 0 EAL: VFIO support initialized EAL: Probe PCI driver: mlx5_pci (15b3:1015) device: 0000:01:00.1 (socket 0) mlx5_common: No Verbs device matches PCI device 0000:01:00.1, are kernel drivers loaded? mlx5_common: Verbs device not found: 01:00.1 mlx5_common: Failed to initialize device context. EAL: Requested device 0000:01:00.1 cannot be used EAL: Bus (pci) probe failed. As far as I can see all the kernel modules are loaded: lsmod | egrep "(ib|mlx)" | sort ib_cm 53248 2 rdma_cm,ib_ipoib ib_core 368640 8 rdma_cm,ib_ipoib,iw_cm,ib_umad,rdma_ucm,ib_uverbs,mlx5_ib,ib_cm ib_ipoib 135168 0 ib_umad 24576 0 ib_uverbs 139264 2 rdma_ucm,mlx5_ib libahci 36864 1 ahci libcrc32c 16384 2 btrfs,raid456 mlx5_core 1634304 1 mlx5_ib mlx5_ib 397312 0 mlx_compat 69632 11 rdma_cm,ib_ipoib,mlxdevm,iw_cm,ib_umad,ib_core,rdma_ucm,ib_uverbs,mlx5_ib,ib_cm,mlx5_core mlxdevm 172032 1 mlx5_core mlxfw 32768 1 mlx5_core pci_hyperv_intf 16384 1 mlx5_core psample 20480 1 mlx5_core tls 94208 2 bonding,mlx5_core root@dc-c3-small-x86-01:~/Dev/reinvent/scripts# mst status -v MST modules: ------------ MST PCI module is not loaded MST PCI configuration module loaded PCI devices: ------------ DEVICE_TYPE MST PCI RDMA NET NUMA ConnectX4LX(rev:0) /dev/mst/mt4117_pciconf0.1 01:00.1 mlx5_bond_0 net-bond0 -1 ConnectX4LX(rev:0) /dev/mst/mt4117_pciconf0 01:00.0 mlx5_bond_0 net-bond0 -1 </div>