doc: update ring guide

[dpdk.git] / config / x86 / meson.build

diff --git a/config/x86/meson.build b/config/x86/meson.build
index a650a1c..adc857b 100644 (file)
--- a/config/x86/meson.build
+++ b/config/x86/meson.build
@@ -15,11 +15,9 @@ if not is_windows
 endif
 
 # we require SSE4.2 for DPDK
-sse_errormsg = '''SSE4.2 instruction set is required for DPDK.
-Please set the machine type to "nehalem" or "corei7" or higher value'''
-
 if cc.get_define('__SSE4_2__', args: machine_args) == ''
-       error(sse_errormsg)
+       message('SSE 4.2 not enabled by default, explicitly enabling')
+       machine_args += '-msse4'
 endif
 
 base_flags = ['SSE', 'SSE2', 'SSE3','SSSE3', 'SSE4_1', 'SSE4_2']
@@ -29,11 +27,14 @@ foreach f:base_flags
 endforeach
 
 optional_flags = ['AES', 'PCLMUL',
-               'AVX', 'AVX2', 'AVX512F']
+               'AVX', 'AVX2', 'AVX512F',
+               'RDRND', 'RDSEED']
 foreach f:optional_flags
        if cc.get_define('__@0@__'.format(f), args: machine_args) == '1'
                if f == 'PCLMUL' # special case flags with different defines
                        f = 'PCLMULQDQ'
+               elif f == 'RDRND'
+                       f = 'RDRAND'
                endif
                dpdk_conf.set('RTE_MACHINE_CPUFLAG_' + f, 1)
                compile_time_cpuflags += ['RTE_CPUFLAG_' + f]