> Subject: [dpdk-dev] [PATCH] net/i40e: fix mingw build error
>
> External email: Use caution opening links or attachments
>
>
> Disable i40e avx512 code path for windows build to avoid the mingw build
> error.
>
> Fixes: e6a6a138919f ("net/i40e: add AVX512 vector path")
>
> Signed-off-by: Leyi Rong <leyi.r...@intel.com>
> ---
> config/x86/cross-mingw | 3 +++
> drivers/net/i40e/meson.build | 2 +-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/config/x86/cross-mingw b/config/x86/cross-mingw index
> 4c15a7fa2e..48a82b457e 100644
> --- a/config/x86/cross-mingw
> +++ b/config/x86/cross-mingw
> @@ -11,3 +11,6 @@ system = 'windows'
> cpu_family = 'x86_64'
> cpu = 'native'
> endian = 'little'
> +
> +[properties]
> +c_args = '-mno-avx512f'
Should be in a different patch since it effects the whole project.
> diff --git a/drivers/net/i40e/meson.build b/drivers/net/i40e/meson.build
> index c0acdf4fd4..c9a1a50407 100644
> --- a/drivers/net/i40e/meson.build
> +++ b/drivers/net/i40e/meson.build
> @@ -54,7 +54,7 @@ if arch_subdir == 'x86'
> cc.has_argument('-mavx512f') and
> cc.has_argument('-mavx512bw'))
>
> - if i40e_avx512_cpu_support == true or i40e_avx512_cc_support == true
> + if not is_windows and (i40e_avx512_cpu_support == true or
> + i40e_avx512_cc_support == true)
DmitryK already mentioned it previously; you only need to disabled MinGW64
since clang isn't seeing those errors.
> cflags += ['-DCC_AVX512_SUPPORT']
> avx512_args = [cflags, '-mavx512f', '-mavx512bw']
> if cc.has_argument('-march=skylake-avx512')
> --
> 2.17.1
