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author | Sunil Pai G <sunil.pai.g@intel.com> | 2021-01-28 10:32:24 +0000 |
---|---|---|
committer | Ilya Maximets <i.maximets@ovn.org> | 2021-01-29 19:51:41 +0100 |
commit | d27494647a325a6d2a512724caca7b294b775be8 (patch) | |
tree | 5b7326ac35b7ac7649f0485690c357996411811e /Documentation/intro | |
parent | 3f19b124e547828fb6fe3fce1a9e4c6bc0fd29b1 (diff) | |
download | openvswitch-d27494647a325a6d2a512724caca7b294b775be8.tar.gz |
acinclude: Remove default library for DPDK.
The default DPDK library used before this patch in case pkg-config
fails to find libdpdk is only valid for make based DPDK builds.
Hence remove them.
As a consequence, now this error message [1] is thrown when pkg-config
cannot find libdpdk instead of proceeding to check for a faulty
pkg-config and reporting incorrect error message [2].
Also, update the documentation to export PKG_CONFIG_PATH since on some
systems, the default install path for DPDK libraries is not present in
the default search path of pkg-config.
Ex: for Fedora 32 default pkg-config search path:
/usr/lib64/pkgconfig:/usr/share/pkgconfig
while by default Meson installs DPDK libraries at:
/usr/local/lib64/pkgconfig
[1] Package libdpdk was not found in the pkg-config search path.
Perhaps you should add the directory containing `libdpdk.pc'
to the PKG_CONFIG_PATH environment variable
Package 'libdpdk', required by 'virtual:world', not found
[2] checking for DPDK... no
checking for faulty pkg-config version... yes
configure: error: Please upgrade pkg-config
Also, update the build documentation for AVX512 optimization.
Fixes: 252e1e576443 ("dpdk: Update to use DPDK v20.11.")
Reported-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
Signed-off-by: Sunil Pai G <sunil.pai.g@intel.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Diffstat (limited to 'Documentation/intro')
-rw-r--r-- | Documentation/intro/install/dpdk.rst | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/Documentation/intro/install/dpdk.rst b/Documentation/intro/install/dpdk.rst index a595417ce..3a24e54f9 100644 --- a/Documentation/intro/install/dpdk.rst +++ b/Documentation/intro/install/dpdk.rst @@ -88,6 +88,19 @@ Install DPDK $ sudo ninja -C build install $ sudo ldconfig + Check if libdpdk can be found by pkg-config:: + + $ pkg-config --modversion libdpdk + + The above command should return the DPDK version installed. If not found, + export the path to the installed DPDK libraries:: + + $ export PKG_CONFIG_PATH=/path/to/installed/".pc" file/for/DPDK + + For example, On Fedora 32:: + + $ export PKG_CONFIG_PATH=/usr/local/lib64/pkgconfig + Detailed information can be found at `DPDK documentation`_. #. (Optional) Configure and export the DPDK shared library location @@ -97,11 +110,9 @@ Install DPDK Exporting the path to library is not necessary if the DPDK libraries are system installed. For libraries installed using a prefix, export the path - to this library and also update the $PKG_CONFIG_PATH for use - before building OVS:: + to this library:: $ export LD_LIBRARY_PATH=/path/to/installed/DPDK/libraries - $ export PKG_CONFIG_PATH=/path/to/installed/".pc" file/for/DPDK .. note:: @@ -152,7 +163,7 @@ has to be configured to build against the DPDK library (``--with-dpdk``). An example that enables the AVX512 optimizations is:: - $ ./configure --with-dpdk=$DPDK_BUILD CFLAGS="-Ofast -msse4.2 -mpopcnt" + $ ./configure --with-dpdk=static CFLAGS="-Ofast -msse4.2 -mpopcnt" #. Build and install OVS, as described in :ref:`general-building` |