Hi Stephanov, thanks for the quick reply ! Yeah, I noticed the libmlx5 complaint in the log, but it wasn't useful because I didn't know where to look for libmlx5. Thanks for the pointer ! Looks like Fedora hasn't included the libibverbs-dev package in it's standard repo, so I'll have to go hunt for it, but now I know what I'm looking for πŸ™‚. Cheers, Mark de Roussier [cid:5d8d9e42-bc90-49da-8eec-df9d55ebfba1][cid:01aa7a99-cf9d-48c1-838a-8d8d1ea458a6] ________________________________ From: Π”ΠΌΠΈΡ‚Ρ€ΠΈΠΉ Π‘Ρ‚Π΅ΠΏΠ°Π½ΠΎΠ² Sent: 20 July 2022 10:55 To: Mark de Roussier Cc: users@dpdk.org Subject: Re: Couple of build problems ( Fedora 36, DPDK 21.11.1 ) Hey! According to missing mlx5 dependency - i have the same problem on my Ubuntu system. You should check full meson build error logs. In my case the error was in missing libmlx5 library > Run-time dependency libmlx5 found: NO (tried pkgconfig) Installing the libibverbs-dev package resolved the issue! ср, 20 июл. 2022 Π³. Π² 11:38, Mark de Roussier >: Hi folk, I'm just starting to experiment with DPDK, but I'm noticing some build issues. I'm using Fedora 36, and DPDK 21.11.1, and following the build instructions at https://core.dpdk.org/doc/quick-start/, building all examples ( meson -Dexamples=all build ). The first problem is that the build is not finding certain libraries which are installed and known about by pkg-config. >[mderouss@mark-dt ~]$ pkg-config --modversion jansson >2.13.1 >[mderouss@mark-dt ~]$ pkg-config --modversion numa >2.0.14 >[mderouss@mark-dt ~]$ pkg-config --modversion libarchive >3.5.3 However, using LIBRARY_PATH to specify their location appears to resolve the problem. There is a potentially relevant error in the meson log : [Errno 21] Is a directory: '/home/mderouss/Projects/dpdk/dpdk-stable-21.11.1/buildtools/pkg-config' Unusable script '/home/mderouss/Projects/dpdk/dpdk-stable-21.11.1/buildtools/pkg-config' Program pkg-config found: YES (/usr/bin/pkg-config) Is this expected behaviour, i.e. LIBRARY_PATH is expected to be set ? The more taxing problem is that I am using ( for this experiment ) a Mellanox NIC : >[mderouss@mark-dt ~]$ lspci | grep Mellanox >06:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx] >06:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx] The meson log reports missing dependencies. It isn't clear to me how I am supposed to satisfy the unresolved dependencies with respect to Mellanox related libraries, in particular the 'missing internal dependency' ? The meson log reports the following, but I think I'm only interested in the mlx ones : drivers:        common/mvep:  missing dependency, "libmusdk"        common/mlx5:  missing dependency, "mlx5"        net/mlx4:     missing dependency, "mlx4"        net/mlx5:     missing internal dependency, "common_mlx5"        net/mvneta:   missing dependency, "libmusdk"        net/mvpp2:    missing dependency, "libmusdk"        net/nfb:      missing dependency, "libnfb"        raw/ioat:     replaced by dmadev drivers        crypto/armv8: missing dependency, "libAArch64crypto"        crypto/mlx5:  missing internal dependency, "common_mlx5"        crypto/mvsam: missing dependency, "libmusdk"        compress/isal:      missing dependency, "libisal"        compress/mlx5:      missing internal dependency, "common_mlx5"        regex/mlx5:   missing internal dependency, "common_mlx5"        vdpa/mlx5:    missing internal dependency, "common_mlx5"        gpu/cuda:     missing dependency, "cuda.h" I read DPDK documentation which seems to suggest that support for Mellanox NICs is somehow 'built in' to DPDK, but this does not appear to be the case ? The documentation refers to a library 'librte_common_mlx5', but does not explain where this can be found. I've looked at downloads from NVIDIA, but even so I am not clear what I need. I've installed the 'RDMA Core Userspace Library' in my system as they are available from the distro, but I'm not sure if these are even relevant : >[mderouss@mark-dt ~]$ pkg-config --list-all | grep mlx >libmlx4 libmlx4 - RDMA Core Userspace Library >libmlx5 libmlx5 - RDMA Core Userspace Library Could someone possibly clarify what I actually need, and where I should get it from ? Regards, Mark de Roussier [cid:1821b0405152c70d1d31][cid:1821b040515771430ca2]