Couple of build problems ( Fedora 36, DPDK 21.11.1 )
Mark de Roussier
mark at hitomi-broadcast.tv
Wed Jul 20 14:19:18 CEST 2022
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 🙂.
Cheers,
Mark de Roussier
[cid:5d8d9e42-bc90-49da-8eec-df9d55ebfba1][cid:01aa7a99-cf9d-48c1-838a-8d8d1ea458a6]
________________________________
From: Дмитрий Степанов <stepanov.dmit at gmail.com>
Sent: 20 July 2022 10:55
To: Mark de Roussier <mark at hitomi-broadcast.tv>
Cc: users at dpdk.org <users at 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 г. в 11:38, Mark de Roussier <mark at hitomi-broadcast.tv<mailto:mark at hitomi-broadcast.tv>>:
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 at mark-dt ~]$ pkg-config --modversion jansson
>2.13.1
>[mderouss at mark-dt ~]$ pkg-config --modversion numa
>2.0.14
>[mderouss at 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 at 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 at 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]
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