[dpdk-dev] [PATCH v3] build: add meson.build for kni kernel module

[Luca Boccassi <bluca@debian.org>]

A Kbuild is also included to allow users to use DKMS natively without
additional code.

Signed-off-by: Luca Boccassi <bluca@debian.org>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
---
v2: add local directory to -I and build sources list recursively to
    fix build on Fedora
v3: add console: true so that output is not buffered, given it takes a
    few seconds to build, and -j4 to the make call, given there are
    more than a few source files.

 kernel/linux/kni/Kbuild                    |  8 +++++
 kernel/linux/kni/ethtool/igb/meson.build   | 16 ++++++++++
 kernel/linux/kni/ethtool/ixgbe/meson.build | 13 +++++++++
 kernel/linux/kni/ethtool/meson.build       |  5 ++++
 kernel/linux/kni/meson.build               | 34 ++++++++++++++++++++++
 kernel/linux/meson.build                   |  2 +-
 6 files changed, 77 insertions(+), 1 deletion(-)
 create mode 100644 kernel/linux/kni/Kbuild
 create mode 100644 kernel/linux/kni/ethtool/igb/meson.build
 create mode 100644 kernel/linux/kni/ethtool/ixgbe/meson.build
 create mode 100644 kernel/linux/kni/ethtool/meson.build
 create mode 100644 kernel/linux/kni/meson.build

diff --git a/kernel/linux/kni/Kbuild b/kernel/linux/kni/Kbuild
new file mode 100644
index 0000000000..de5c27f328
--- /dev/null
+++ b/kernel/linux/kni/Kbuild
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Luca Boccassi <bluca@debian.org>
+
+ccflags-y := $(MODULE_CFLAGS)
+obj-m := rte_kni.o
+rte_kni-y := $(patsubst $(src)/%.c,%.o,$(wildcard $(src)/*.c)) \
+ $(patsubst $(src)/%.c,%.o,$(wildcard $(src)/ethtool/ixgbe/*.c)) \
+ $(patsubst $(src)/%.c,%.o,$(wildcard $(src)/ethtool/igb/*.c))
diff --git a/kernel/linux/kni/ethtool/igb/meson.build b/kernel/linux/kni/ethtool/igb/meson.build
new file mode 100644
index 0000000000..2f796ac0b2
--- /dev/null
+++ b/kernel/linux/kni/ethtool/igb/meson.build
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Luca Boccassi <bluca@debian.org>
+
+kni_igb_sources = files(
+	'e1000_82575.c',
+	'e1000_api.c',
+	'e1000_i210.c',
+	'e1000_mac.c',
+	'e1000_manage.c',
+	'e1000_mbx.c',
+	'e1000_nvm.c',
+	'e1000_phy.c',
+	'igb_ethtool.c',
+	'igb_main.c',
+	'igb_param.c',
+	'igb_vmdq.c')
diff --git a/kernel/linux/kni/ethtool/ixgbe/meson.build b/kernel/linux/kni/ethtool/ixgbe/meson.build
new file mode 100644
index 0000000000..73248b13e4
--- /dev/null
+++ b/kernel/linux/kni/ethtool/ixgbe/meson.build
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Luca Boccassi <bluca@debian.org>
+
+kni_ixgbe_sources = files(
+	'ixgbe_82598.c',
+	'ixgbe_82599.c',
+	'ixgbe_api.c',
+	'ixgbe_common.c',
+	'ixgbe_ethtool.c',
+	'ixgbe_main.c',
+	'ixgbe_phy.c',
+	'ixgbe_x540.c',
+	'kcompat.c')
diff --git a/kernel/linux/kni/ethtool/meson.build b/kernel/linux/kni/ethtool/meson.build
new file mode 100644
index 0000000000..7a8458ddcd
--- /dev/null
+++ b/kernel/linux/kni/ethtool/meson.build
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Luca Boccassi <bluca@debian.org>
+
+subdir('igb')
+subdir('ixgbe')
diff --git a/kernel/linux/kni/meson.build b/kernel/linux/kni/meson.build
new file mode 100644
index 0000000000..a09af5aa5f
--- /dev/null
+++ b/kernel/linux/kni/meson.build
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2018 Luca Boccassi <bluca@debian.org>
+
+subdir('ethtool')
+
+kni_mkfile = custom_target('rte_kni_makefile',
+	output: 'Makefile',
+	command: ['touch', '@OUTPUT@'])
+
+kni_sources = files(
+	'kni_ethtool.c',
+	'kni_misc.c',
+	'kni_net.c',
+	'Kbuild')
+
+custom_target('rte_kni',
+	input: kni_sources + kni_igb_sources + kni_ixgbe_sources,
+	output: 'rte_kni.ko',
+	command: ['make', '-j4', '-C', kernel_dir,
+		'M=' + meson.current_build_dir(),
+		'src=' + meson.current_source_dir(),
+		'MODULE_CFLAGS=-include ' + meson.source_root() + '/config/rte_config.h' +
+		' -I' + meson.source_root() + '/lib/librte_eal/common/include' +
+		' -I' + meson.source_root() + '/lib/librte_eal/linuxapp/eal/include' +
+		' -I' + meson.build_root() +
+		' -I' + meson.current_source_dir() +
+		' -I' + meson.current_source_dir() + '/ethtool/ixgbe' +
+		' -I' + meson.current_source_dir() + '/ethtool/igb',
+		'modules'],
+	depends: kni_mkfile,
+	console: true,
+	install: true,
+	install_dir: kernel_dir + '/../extra/dpdk',
+	build_by_default: get_option('enable_kmods'))
diff --git a/kernel/linux/meson.build b/kernel/linux/meson.build
index a924c7b6fb..5b7ec06e1d 100644
--- a/kernel/linux/meson.build
+++ b/kernel/linux/meson.build
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: BSD-3-Clause
 # Copyright(c) 2018 Intel Corporation
 
-subdirs = ['igb_uio']
+subdirs = ['igb_uio', 'kni']
 
 WARN_CROSS_COMPILE='Need "kernel_dir" option for kmod compilation when cross-compiling'
 WARN_NO_HEADERS='Cannot compile kernel modules as requested - are kernel headers installed?'
-- 
2.19.1