From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH v2 5/5] net/mlx5: add vectorized Rx/Tx burst
	for SSE4.1
Date: Tue, 04 Jul 2017 01:54:49 +0200
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References: <20170628230403.10142-1-yskoh@mellanox.com>
 <cover.1498850005.git.yskoh@mellanox.com>
 <969ef71aa84f02c19f7fe011fe75e25049177d76.1498850005.git.yskoh@mellanox.com>
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Cc: dev@dpdk.org, ferruh.yigit@intel.com, adrien.mazarguil@6wind.com,
 nelio.laranjeiro@6wind.com, bruce.richardson@intel.com
To: Yongseok Koh <yskoh@mellanox.com>
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30/06/2017 21:23, Yongseok Koh:
> --- a/drivers/net/mlx5/Makefile
> +++ b/drivers/net/mlx5/Makefile
> @@ -39,6 +39,11 @@ SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5.c
>  SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxq.c
>  SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_txq.c
>  SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxtx.c
> +ifneq ($(findstring RTE_MACHINE_CPUFLAG_SSE4_1,$(CFLAGS)),)
> +ifeq ($(CONFIG_RTE_ARCH_X86_64),y)
> +SRCS-$(CONFIG_RTE_LIBRTE_MLX5_PMD) += mlx5_rxtx_vec_sse.c
> +endif
> +endif
[...]
> +#check if flag for SSE4.1 is already on, if not set it up manually
> +ifeq ($(findstring RTE_MACHINE_CPUFLAG_SSE4_1,$(CFLAGS)),)
> +CFLAGS_mlx5_rxtx_vec_sse.o += -msse4.1
> +endif

You can remove this check and SSE flag because SSE4.2 is now
the minimum requirement for DPDK on x86:
	http://dpdk.org/patch/25444