> -----Original Message-----
> From: dev <dev-boun...@dpdk.org> On Behalf Of Ali Alnubani
> Sent: Tuesday, October 27, 2020 10:33 AM
> To: Leyi Rong <leyi.r...@intel.com>; qi.z.zh...@intel.com;
> wenzhuo...@intel.com; burce.richard...@intel.com
> Cc: dev@dpdk.org; Bruce Richardson <bruce.richard...@intel.com>
> Subject: Re: [dpdk-dev] [PATCH v4 1/3] net/ice: add AVX512 vector path
>
> Hi,
>
> > -----Original Message-----
> > From: dev <dev-boun...@dpdk.org> On Behalf Of Leyi Rong
> > Sent: Friday, October 23, 2020 7:14 AM
> > To: qi.z.zh...@intel.com; wenzhuo...@intel.com;
> > burce.richard...@intel.com
> > Cc: dev@dpdk.org; Leyi Rong <leyi.r...@intel.com>; Bruce Richardson
> > <bruce.richard...@intel.com>
> > Subject: [dpdk-dev] [PATCH v4 1/3] net/ice: add AVX512 vector path
> >
> > Add AVX512 support for ice PMD. This patch adds ice_rxtx_vec_avx512.c
> > to support ice AVX512 vPMD.
> >
> > This patch aims to enable AVX512 on ice vPMD. Main changes are focus
> > on Rx path compared with AVX2 vPMD.
> >
> > Signed-off-by: Leyi Rong <leyi.r...@intel.com>
> > Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
> > ---
>
> This patch is causing the following build failure on CentOS 7 with gcc 4.8.5:
>
> """
> drivers/librte_net_ice.a(net_ice_ice_rxtx.c.o): In function
> `ice_set_rx_function':
> drivers/net/ice/ice_rxtx.c:3034: undefined reference to
> `ice_recv_scattered_pkts_vec_avx512'
> drivers/net/ice/ice_rxtx.c:3050: undefined reference to
> `ice_recv_pkts_vec_avx512'
> drivers/librte_net_ice.a(net_ice_ice_rxtx.c.o): In function
> `ice_set_tx_function':
> drivers/net/ice/ice_rxtx.c:3243: undefined reference to
> `ice_xmit_pkts_vec_avx512'
> """
>
> It reproduces when building with "meson --werror --buildtype=debug build
> && ninja -C build".
>
It's also causing the following build failure on Ubuntu 18.04 (gcc 7.5.0) and
on OpenSUSE Leap 15.2 (gcc 7.5.0):
"""
drivers/net/ice/ice_rxtx_vec_avx512.c: In function
'_ice_recv_raw_pkts_vec_avx512':
/usr/lib/gcc/x86_64-linux-gnu/7/include/avx512bwintrin.h:1831:1: error:
inlining failed in call to always_inline '_mm512_shuffle_epi8': target specific
option mismatch
_mm512_shuffle_epi8 (__m512i __A, __m512i __B)
^~~~~~~~~~~~~~~~~~~
drivers/net/ice/ice_rxtx_vec_avx512.c:350:11: note: called from here
__m512i mb0_3 = _mm512_shuffle_epi8(raw_desc0_3, shuf_msk);
^~~~~
"""
Regards,
Ali
