Hi, I'm trying to bring up dpdk-testpmd application using Mellanox connectX-5 ports. With a custom built dpdk, testpmd is not able to detect the ports. OS & Kernel: Linux debian-10 4.19.0-17-amd64 #1 SMP Debian 4.19.194-2 (2021-06-21) x86_64 GNU/Linux The steps followed: * Installed MLNX_OFED_LINUX-4.9-4.0.8.0-debian10.0-x86_64 (./mlnxofedinstall --skip-distro-check --upstream-libs --dpdk) * Downloaded dpdk-18.11 source, and built it after making following changes in config CONFIG_RTE_LIBRTE_MLX5_PMD=y CONFIG_RTE_TEST_PMD_RECORD_CORE_CYCLES=y CONFIG_RTE_BUILD_SHARED_LIB=y * When I run testpmd, it is not recognizing any Mellanox ports ######### root@debian-10:~/dpdk-18.11/myinstall# ./bin/testpmd -l 1-3 -w 82:00.0 --no-pci -- --total-num-mbufs 1025 EAL: Detected 24 lcore(s) EAL: Detected 2 NUMA nodes EAL: Multi-process socket /var/run/dpdk/rte/mp_socket EAL: No free hugepages reported in hugepages-1048576kB EAL: Probing VFIO support... testpmd: No probed ethernet devices testpmd: create a new mbuf pool : n=1025, size=2176, socket=0 testpmd: preferred mempool ops selected: ring_mp_mc testpmd: create a new mbuf pool : n=1025, size=2176, socket=1 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 ########## root@debian-10:~# lspci | grep Mellanox 82:00.0 Ethernet controller: Mellanox Technologies MT28800 Family [ConnectX-5 Ex] 82:00.1 Ethernet controller: Mellanox Technologies MT28800 Family [ConnectX-5 Ex] root@debian-10:~# ibv_devinfo hca_id: mlx5_0 transport: InfiniBand (0) fw_ver: 16.28.4512 node_guid: b8ce:f603:00f2:7952 sys_image_guid: b8ce:f603:00f2:7952 vendor_id: 0x02c9 vendor_part_id: 4121 hw_ver: 0x0 board_id: DEL0000000004 phys_port_cnt: 1 port: 1 state: PORT_ACTIVE (4) max_mtu: 4096 (5) active_mtu: 1024 (3) sm_lid: 0 port_lid: 0 port_lmc: 0x00 link_layer: Ethernet hca_id: mlx5_1 transport: InfiniBand (0) fw_ver: 16.28.4512 node_guid: b8ce:f603:00f2:7953 sys_image_guid: b8ce:f603:00f2:7952 vendor_id: 0x02c9 vendor_part_id: 4121 hw_ver: 0x0 board_id: DEL0000000004 phys_port_cnt: 1 port: 1 state: PORT_ACTIVE (4) max_mtu: 4096 (5) active_mtu: 1024 (3) sm_lid: 0 port_lid: 0 port_lmc: 0x00 link_layer: Ethernet I'm not sure where I'm going wrong. Any hints will be much appreciated. Thanks, Sindhu