From: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Compile Mellanox driver when their external dependencies are met. A
glue version of the driver can still be requested by using the
-Denable_driver_mlx_glue=true
To avoid modifying the whole sources and keep the compatibility with
current build systems (e.g. make), the mlx4_autoconf.h is still
generated by invoking DPDK scripts though meson's run_command() instead
of using has_types, has_members, ... commands.
Meson will try to find the required external libraries. When they are
not installed system wide, they can be provided though CFLAGS, LDFLAGS
and LD_LIBRARY_PATH environment variables, example (considering
RDMA-Core is installed in /tmp/rdma-core):
# CLFAGS=-I/tmp/rdma-core/build/include \
LDFLAGS=-L/tmp/rdma-core/build/lib \
LD_LIBRARY_PATH=/tmp/rdma-core/build/lib \
meson output
# LD_LIBRARY_PATH=/tmp/rdma-core/build/lib \
ninja -C output install
Note: LD_LIBRARY_PATH before ninja is necessary when the meson
configuration has changed (e.g. meson configure has been called), in
such situation the LD_LIBRARY_PATH is necessary to invoke the
autoconfiguration script.
Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
---
Changes in v6:
- split into two patches for mlx5 and mlx4
- ident with tabs instead of spaces
- no need to remove the confiugration file, meson will override it
- split configuration file creation into two loops: symbols and structs
Changes in v5:
- use meson tool to generate Mellanox config file instead of DPDK custom scripts.
Changes in v4:
- remove implicit -Wall flag (set by default by meson),
- add item information in the autoconfiguration failure error message,
- reword the help for the glue library option,
Changes in v3:
Sanitize the build files:
- remove enable_driver_mlx{4,5} options,
- test cflags capabilities before using them,
- remove old autoconfiguration file,
- use an array for autoconfiguration and put them in the build directory,
- use dependencies in shared_library for link arguments.
Changes in v2:
- dropped patch https://patches.dpdk.org/patch/43897/
- remove extra_{cflags,ldflags} as already honored by meson through
environment variables.
---
drivers/net/meson.build | 1 +
drivers/net/mlx4/meson.build | 102 +++++++++++++++++++++++++++++++++++++++++++
2 files changed, 103 insertions(+)
create mode 100644 drivers/net/mlx4/meson.build
@@ -18,6 +18,7 @@ drivers = ['af_packet',
'ixgbe',
'kni',
'liquidio',
+ 'mlx4',
'mlx5',
'mvpp2',
'netvsc',
new file mode 100644
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright 2018 6WIND S.A.
+# Copyright 2018 Mellanox Technologies, Ltd
+
+pmd_dlopen = get_option('enable_driver_mlx_glue')
+LIB_GLUE_BASE = 'librte_pmd_mlx4_glue.so'
+LIB_GLUE_VERSION = '18.02.0'
+LIB_GLUE = LIB_GLUE_BASE + '.' + LIB_GLUE_VERSION
+if pmd_dlopen
+ dpdk_conf.set('RTE_LIBRTE_MLX4_DLOPEN_DEPS', 1)
+ cflags += [
+ '-DMLX4_GLUE="@0@"'.format(LIB_GLUE),
+ '-DMLX4_GLUE_VERSION="@0@"'.format(LIB_GLUE_VERSION),
+ ]
+endif
+libs = [
+ cc.find_library('mnl', required:false),
+ cc.find_library('mlx4', required:false),
+ cc.find_library('ibverbs', required:false),
+]
+build = true
+foreach lib:libs
+ if not lib.found()
+ build = false
+ endif
+endforeach
+# Compile PMD
+if build
+ allow_experimental_apis = true
+ ext_deps += libs
+ sources = files(
+ 'mlx4.c',
+ 'mlx4_ethdev.c',
+ 'mlx4_flow.c',
+ 'mlx4_intr.c',
+ 'mlx4_mr.c',
+ 'mlx4_rxq.c',
+ 'mlx4_rxtx.c',
+ 'mlx4_txq.c',
+ 'mlx4_utils.c',
+ )
+ if not pmd_dlopen
+ sources += files('mlx4_glue.c')
+ endif
+ cflags_options = [
+ '-Wextra',
+ '-std=c11',
+ '-Wno-strict-prototypes',
+ '-D_BSD_SOURCE',
+ '-D_DEFAULT_SOURCE',
+ '-D_XOPEN_SOURCE=600'
+ ]
+ foreach option:cflags_options
+ if cc.has_argument(option)
+ cflags += option
+ endif
+ endforeach
+ if get_option('buildtype').contains('debug')
+ cflags += [ '-pedantic', '-UNDEBUG', '-DPEDANTIC' ]
+ else
+ cflags += [ '-DNDEBUG', '-UPEDANTIC' ]
+ endif
+ # To maintain the compatibility with the make build system
+ # mlx4_autoconf.h file is still generated.
+ # input array for meson member search:
+ # [ "MACRO to define if found", "header for the search",
+ # "symbol to search","struct member to search" ]
+ #
+ has_member_args = [
+ [ 'HAVE_IBV_MLX4_WQE_LSO_SEG', 'infiniband/mlx4dv.h',
+ 'struct mlx4_wqe_lso_seg', 'mss_hdr_size' ],
+ ]
+ config = configuration_data()
+ foreach arg:has_member_args
+ file_prefix = '#include<' + arg[1] + '>'
+ config.set(arg[0], cc.has_member(arg[2], arg[3],
+ prefix : file_prefix))
+ endforeach
+ configure_file(output : 'mlx4_autoconf.h', configuration : config)
+endif
+# Build Glue Library
+if pmd_dlopen and build
+ dlopen_name = 'mlx4_glue'
+ dlopen_lib_name = driver_name_fmt.format(dlopen_name)
+ dlopen_so_version = LIB_GLUE_VERSION
+ dlopen_sources = files('mlx4_glue.c')
+ dlopen_install_dir = [ eal_pmd_path + '-glue' ]
+ shared_lib = shared_library(
+ dlopen_lib_name,
+ dlopen_sources,
+ include_directories: global_inc,
+ c_args: cflags,
+ dependencies: libs,
+ link_args: [
+ '-Wl,-export-dynamic',
+ '-Wl,-h,@0@'.format(LIB_GLUE),
+ ],
+ soversion: dlopen_so_version,
+ install: true,
+ install_dir: dlopen_install_dir,
+ )
+endif