event/octeontx2: add devargs to disable NPA

[dpdk.git] / drivers / meson.build

diff --git a/drivers/meson.build b/drivers/meson.build
index c3c66bb..2ed2e95 100644 (file)
--- a/drivers/meson.build
+++ b/drivers/meson.build
@@ -1,8 +1,12 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright(c) 2017 Intel Corporation
+# Copyright(c) 2017-2019 Intel Corporation
+
+if is_windows
+       subdir_done()
+endif
 
 # Defines the order in which the drivers are buit.
-driver_classes = ['common',
+dpdk_driver_classes = ['common',
               'bus',
               'mempool', # depends on common and bus.
               'net',     # depends on common, bus and mempool.
@@ -17,10 +21,7 @@ if cc.has_argument('-Wno-format-truncation')
        default_cflags += '-Wno-format-truncation'
 endif
 
-# specify -D_GNU_SOURCE unconditionally
-default_cflags += '-D_GNU_SOURCE'
-
-foreach class:driver_classes
+foreach class:dpdk_driver_classes
        drivers = []
        std_deps = []
        config_flag_fmt = '' # format string used to set the value in dpdk_conf
@@ -36,6 +37,7 @@ foreach class:driver_classes
 
                # set up empty variables used for build
                build = true # set to false to disable, e.g. missing deps
+               reason = '<unknown reason>' # set if build == false to explain
                name = drv
                version = 1
                allow_experimental_apis = false
@@ -46,17 +48,27 @@ foreach class:driver_classes
                # set up internal deps. Drivers can append/override as necessary
                deps = std_deps
                # ext_deps: Stores external library dependency got
-               # using dependency() or cc.find_library(). For most cases, we
-               # probably also need to specify the "-l" flags in
-               # pkgconfig_extra_libs variable too, so that it can be reflected
-               # in the pkgconfig output for static builds
+               # using dependency() (preferred) or find_library().
+               # For the find_library() case (but not with dependency()) we also
+               # need to specify the "-l" flags in pkgconfig_extra_libs variable
+               # too, so that it can be reflected in the pkgconfig output for
+               # static builds.
                ext_deps = []
                pkgconfig_extra_libs = []
 
                # pull in driver directory which should assign to each of the above
                subdir(drv_path)
 
-               if build
+               if not build
+                       # some driver directories are placeholders which
+                       # are never built, so we allow suppression of the
+                       # component disable printout in those cases
+                       if reason != ''
+                               dpdk_drvs_disabled += drv_path
+                               set_variable(drv_path.underscorify() +
+                                               '_disable_reason', reason)
+                       endif
+               else
                        class_drivers += name
 
                        dpdk_conf.set(config_flag_fmt.format(name.to_upper()),1)
@@ -148,8 +160,5 @@ foreach class:driver_classes
                endif # build
        endforeach
 
-       if meson.version().version_compare('>=0.47')
-               # prior to 0.47, set_variable can't take array params
-               set_variable(class + '_drivers', class_drivers)
-       endif
+       set_variable(class + '_drivers', class_drivers)
 endforeach