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From: "Rong, Leyi" <leyi.rong@intel.com>
To: Tal Shnaiderman <talshn@nvidia.com>, "Zhang, Qi Z" <qi.z.zhang@intel.com>,
"Kadam, Pallavi" <pallavi.kadam@intel.com>, "Yigit, Ferruh"
<ferruh.yigit@intel.com>, "Menon, Ranjit" <ranjit.menon@intel.com>, "Xing,
Beilei" <beilei.xing@intel.com>
CC: "dev@dpdk.org" <dev@dpdk.org>
Thread-Topic: [dpdk-dev] [PATCH] net/i40e: fix mingw build error
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Date: Wed, 27 Jan 2021 08:30:33 +0000
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Subject: Re: [dpdk-dev] [PATCH] net/i40e: fix mingw build error
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Sender: "dev" <dev-bounces@dpdk.org>
> -----Original Message-----
> From: Tal Shnaiderman <talshn@nvidia.com>
> Sent: Wednesday, January 27, 2021 1:04 AM
> To: Rong, Leyi <leyi.rong@intel.com>; Zhang, Qi Z <qi.z.zhang@intel.com>;
> Kadam, Pallavi <pallavi.kadam@intel.com>; Yigit, Ferruh
> <ferruh.yigit@intel.com>; Menon, Ranjit <ranjit.menon@intel.com>; Xing, B=
eilei
> <beilei.xing@intel.com>
> Cc: dev@dpdk.org
> Subject: RE: [dpdk-dev] [PATCH] net/i40e: fix mingw build error
>=20
> > 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.rong@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 =3D 'windows'
> > cpu_family =3D 'x86_64'
> > cpu =3D 'native'
> > endian =3D 'little'
> > +
> > +[properties]
> > +c_args =3D '-mno-avx512f'
>=20
> Should be in a different patch since it effects the whole project.
>=20
Sure, will be split in v2.
> > 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 =3D=3D 'x86'
> > cc.has_argument('-mavx512f') and
> > cc.has_argument('-mavx512bw'))
> >
> > - if i40e_avx512_cpu_support =3D=3D true or i40e_avx512_cc_suppor=
t =3D=3D true
> > + if not is_windows and (i40e_avx512_cpu_support =3D=3D true or
> > + i40e_avx512_cc_support =3D=3D true)
>=20
> DmitryK already mentioned it previously; you only need to disabled MinGW6=
4
> since clang isn't seeing those errors.
>=20
Yes, will support the case when clang is enable.