[dpdk-dev] [RFC PATCH v3 0/6] Arm build options rework
Juraj Linkeš
juraj.linkes at pantheon.tech
Wed Oct 21 13:37:35 CEST 2020
The current way of specifying Arm configuration options is insufficient
since we can't identify the SoC we're building for from the MIDR
information.
Add a way to discover cpu count a numa node count and use that instead
of statically defined values. This augments the current native builds.
A bonus is that users may now use -Dmax_lcores and -Dmax_numa_nodes to
configure those from command line, which didn't work before for Arm
builds.
For cross builds, the cpu count and numa node count are specified in
cross files.
We also want to be able to disable which drivers (and possibly
libraries) are built without user input. This is useful when building:
1. on an SoC that is slow and we want to build only what is necessary
without the user having to check which libraries they have installed
2. a cross build on a fast aarch64 machine but with target SoC which
differs in capabilities or libraries.
This is achieved by specifying the drivers in cross files. Only libnuma
can be now disabled.
v2:
Major rework of the whole series.
v3:
Added numa and core count defaults for x86 default build.
Removed numa and core count defaults. Now requiring defaults to be
specified in a cross file or on the cmdline.
Added FreeBDS support for numa count discovery.
Juraj Linkeš (6):
build: rename default Arm build to generic-armv8
build: refactor Arm build
build: automatic NUMA and cpu counts detection
build: move core and NUMA counts to cross files
build: disable Arm drivers
build: update Arm builds with makefile flags
buildtools/get_cpu_count.py | 7 +
buildtools/get_numa_count.py | 22 ++
buildtools/meson.build | 2 +
config/arm/arm64_armada_linux_gcc | 6 +-
config/arm/arm64_armv8_linux_gcc | 18 +-
config/arm/arm64_bluefield_linux_gcc | 7 +-
config/arm/arm64_dpaa_linux_gcc | 5 +-
config/arm/arm64_emag_linux_gcc | 4 +-
config/arm/arm64_n1sdp_linux_gcc | 7 +-
config/arm/arm64_octeontx2_linux_gcc | 7 +-
config/arm/arm64_stingray_linux_gcc | 7 +-
config/arm/arm64_thunderx2_linux_gcc | 6 +-
config/arm/arm64_thunderx_linux_gcc | 4 +-
config/arm/meson.build | 297 +++++++++++++++------------
config/meson.build | 45 +++-
drivers/meson.build | 6 +-
meson.build | 1 +
meson_options.txt | 8 +-
18 files changed, 302 insertions(+), 157 deletions(-)
create mode 100644 buildtools/get_cpu_count.py
create mode 100644 buildtools/get_numa_count.py
--
2.20.1
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