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From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Leyi Rong <leyi.rong@intel.com>,
	qi.z.zhang@intel.com, bruce.richardson@intel.com,
	beilei.xing@intel.com
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v2 1/3] net/i40e: remove devarg use-latest-supported-vec
Date: Wed, 13 Jan 2021 13:40:24 +0000
Message-ID: <941277f6-1388-7cf6-8cd5-9c6c40cd5634@intel.com> (raw)
In-Reply-To: <20210107074420.6335-2-leyi.rong@intel.com>

On 1/7/2021 7:44 AM, Leyi Rong wrote:
> As eal parameter --force-max-simd-bitwidth is already introduced,
> to make it more clear when setting rx/tx function, remove
> devarg use-latest-supported-vec support.
> 
> Signed-off-by: Leyi Rong <leyi.rong@intel.com>

<...>

> @@ -3154,20 +3124,33 @@ i40e_set_rx_function(struct rte_eth_dev *dev)
>   					break;
>   				}
>   			}
> +
> +			if ((rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) == 1 ||
> +			     rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F) == 1) &&
> +					rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
> +				use_avx2 = true;
>   		}

Hi Leyi,

The cpu flags, 'RTE_CPUFLAG_AVX2' & 'RTE_CPUFLAG_AVX512F', are only defined for 
x86 and causing build error for other architectures.

And what about extracting that logic into a static inline function, this makes 
code more clean, and in that function other architectures return 'use_avx2' 
false straightaway and can do the checks only for x86?

  parent reply	other threads:[~2021-01-13 13:40 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-15  2:19 [dpdk-dev] [PATCH 0/3] AVX512 vPMD on i40e Leyi Rong
2020-12-15  2:19 ` [dpdk-dev] [PATCH 1/3] net/i40e: remove devarg use-latest-supported-vec Leyi Rong
2020-12-15  2:19 ` [dpdk-dev] [PATCH 2/3] net/i40e: add AVX512 vector path Leyi Rong
2020-12-15  2:19 ` [dpdk-dev] [PATCH 3/3] net/i40e: optimize Tx by using AVX512 Leyi Rong
2021-01-07  7:44 ` [dpdk-dev] [PATCH v2 0/3] AVX512 vPMD on i40e Leyi Rong
2021-01-07  7:44   ` [dpdk-dev] [PATCH v2 1/3] net/i40e: remove devarg use-latest-supported-vec Leyi Rong
2021-01-13  6:12     ` Lu, Wenzhuo
2021-01-13 13:40     ` Ferruh Yigit [this message]
2021-01-07  7:44   ` [dpdk-dev] [PATCH v2 2/3] net/i40e: add AVX512 vector path Leyi Rong
2021-01-13  6:13     ` Lu, Wenzhuo
2021-01-07  7:44   ` [dpdk-dev] [PATCH v2 3/3] net/i40e: optimize Tx by using AVX512 Leyi Rong
2021-01-13  6:12     ` Lu, Wenzhuo
2021-01-13  9:53   ` [dpdk-dev] [PATCH v2 0/3] AVX512 vPMD on i40e Zhang, Qi Z
2021-01-14  6:39 ` [dpdk-dev] [PATCH v3 " Leyi Rong
2021-01-14  6:39   ` [dpdk-dev] [PATCH v3 1/3] net/i40e: remove devarg use-latest-supported-vec Leyi Rong
2021-01-15 13:36     ` Ferruh Yigit
2021-01-14  6:39   ` [dpdk-dev] [PATCH v3 2/3] net/i40e: add AVX512 vector path Leyi Rong
2021-01-14  6:39   ` [dpdk-dev] [PATCH v3 3/3] net/i40e: optimize Tx by using AVX512 Leyi Rong
2021-01-14  7:37   ` [dpdk-dev] [PATCH v3 0/3] AVX512 vPMD on i40e Zhang, Qi Z
2021-01-17 11:26     ` Odi Assli
2021-01-18 13:58       ` Rong, Leyi
2021-01-18 14:24         ` Ferruh Yigit
2021-01-18 14:53           ` Odi Assli
2021-01-18 16:36             ` Ferruh Yigit
2021-01-19 13:46               ` Ali Alnubani
2021-01-20  6:25                 ` Tal Shnaiderman
2021-01-20  8:36                   ` David Marchand
2021-01-20  9:18                     ` Ferruh Yigit
2021-01-20  9:23                     ` Thomas Monjalon
2021-01-20  9:53                       ` David Marchand
2021-01-20 10:05                         ` Ali Alnubani
2021-01-20 17:51                           ` Ferruh Yigit
2021-01-20 18:04                             ` Ferruh Yigit
2021-01-21  5:01                             ` Kadam, Pallavi
2021-01-25 14:35                               ` David Marchand
2021-01-26 16:17                                 ` Rong, Leyi
2021-01-26 16:22                                   ` Thomas Monjalon
2021-01-26 16:39                                     ` Ferruh Yigit
2021-01-26 16:48                                       ` Thomas Monjalon
2021-01-26 16:51                                         ` Ferruh Yigit
2021-01-28 20:35                                           ` Dmitry Kozlyuk
2021-01-28 21:24                                             ` Thomas Monjalon

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