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Hi folk,
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<div>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 ).
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<div>The first problem is that the build is not finding certain libraries which are installed and known about by pkg-config.
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<div>>[mderouss@mark-dt ~]$ pkg-config --modversion jansson</div>
<div>>2.13.1</div>
<div>>[mderouss@mark-dt ~]$ pkg-config --modversion numa</div>
<div>>2.0.14</div>
<div>>[mderouss@mark-dt ~]$ pkg-config --modversion libarchive</div>
<div>>3.5.3</div>
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<div>However, using LIBRARY_PATH to specify their location appears to resolve the problem. There is a potentially relevant error in the meson log :</div>
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<div> [Errno 21] Is a directory: '/home/mderouss/Projects/dpdk/dpdk-stable-21.11.1/buildtools/pkg-config'</div>
<div> Unusable script '/home/mderouss/Projects/dpdk/dpdk-stable-21.11.1/buildtools/pkg-config'</div>
<div> Program pkg-config found: YES (/usr/bin/pkg-config)</div>
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<div>Is this expected behaviour, i.e. LIBRARY_PATH is expected to be set ? </div>
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<div>The more taxing problem is that I am using ( for this experiment ) a Mellanox NIC :</div>
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<div>>[mderouss@mark-dt ~]$ lspci | grep Mellanox</div>
<div>>06:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]</div>
<div>>06:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]</div>
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<div>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 : </div>
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<div> drivers:</div>
<div> common/mvep: missing dependency, "libmusdk"</div>
<div> <b>common/mlx5: missing dependency, "mlx5"</b></div>
<div> <b>net/mlx4: missing dependency, "mlx4"</b></div>
<div> <b>net/mlx5: missing internal dependency, "common_mlx5"</b></div>
<div> net/mvneta: missing dependency, "libmusdk"</div>
<div> net/mvpp2: missing dependency, "libmusdk"</div>
<div> net/nfb: missing dependency, "libnfb"</div>
<div> raw/ioat: replaced by dmadev drivers</div>
<div> crypto/armv8: missing dependency, "libAArch64crypto"</div>
<div> <b>crypto/mlx5: missing internal dependency, "common_mlx5"</b></div>
<div> crypto/mvsam: missing dependency, "libmusdk"</div>
<div> compress/isal: missing dependency, "libisal"</div>
<div> <b>compress/mlx5: missing internal dependency, "common_mlx5"</b></div>
<div> <b> regex/mlx5: missing internal dependency, "common_mlx5"</b></div>
<div> <b>vdpa/mlx5: missing internal dependency, "common_mlx5"</b></div>
<div> gpu/cuda: missing dependency, "cuda.h"</div>
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<div>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 ?
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<div>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 :</div>
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<div>>[mderouss@mark-dt ~]$ pkg-config --list-all | grep mlx</div>
<div>>libmlx4 libmlx4 - RDMA Core Userspace Library</div>
<div>>libmlx5 libmlx5 - RDMA Core Userspace Library</div>
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<div>Could someone possibly clarify what I actually need, and where I should get it from ?
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<div>Regards,</div>
Mark de Roussier<br>
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