[dpdk-dev] [PATCH v4 1/3] net/ice: add AVX512 vector path

[Ali Alnubani]

Hi,

> -----Original Message-----
> From: dev <dev-bounces at dpdk.org> On Behalf Of Leyi Rong
> Sent: Friday, October 23, 2020 7:14 AM
> To: qi.z.zhang at intel.com; wenzhuo.lu at intel.com;
> burce.richardson at intel.com
> Cc: dev at dpdk.org; Leyi Rong <leyi.rong at intel.com>; Bruce Richardson
> <bruce.richardson at 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.rong at intel.com>
> Signed-off-by: Bruce Richardson <bruce.richardson at 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".

Regards,
Ali