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From: "Min Hu (Connor)" <humin29@huawei.com>
To: <dev@dpdk.org>
Cc: <ferruh.yigit@intel.com>
Subject: [dpdk-dev] [PATCH 1/7] net/hns3: check max SIMD bitwidth
Date: Sat, 17 Apr 2021 17:54:53 +0800	[thread overview]
Message-ID: <1618653299-40380-2-git-send-email-humin29@huawei.com> (raw)
In-Reply-To: <1618653299-40380-1-git-send-email-humin29@huawei.com>

From: Chengwen Feng <fengchengwen@huawei.com>

This patch supports check max SIMD bitwidth when choosing NEON and SVE
vector path.

Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
 drivers/net/hns3/hns3_rxtx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/hns3/hns3_rxtx.c b/drivers/net/hns3/hns3_rxtx.c
index 9bb30fc..f2022a5 100644
--- a/drivers/net/hns3/hns3_rxtx.c
+++ b/drivers/net/hns3/hns3_rxtx.c
@@ -13,6 +13,7 @@
 #include <rte_malloc.h>
 #if defined(RTE_ARCH_ARM64)
 #include <rte_cpuflags.h>
+#include <rte_vect.h>
 #endif
 
 #include "hns3_ethdev.h"
@@ -2800,6 +2801,8 @@ static bool
 hns3_get_default_vec_support(void)
 {
 #if defined(RTE_ARCH_ARM64)
+	if (rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_128)
+		return false;
 	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_NEON))
 		return true;
 #endif
@@ -2810,6 +2813,8 @@ static bool
 hns3_get_sve_support(void)
 {
 #if defined(RTE_ARCH_ARM64) && defined(__ARM_FEATURE_SVE)
+	if (rte_vect_get_max_simd_bitwidth() < RTE_VECT_SIMD_256)
+		return false;
 	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SVE))
 		return true;
 #endif
-- 
2.7.4


  reply	other threads:[~2021-04-17  9:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-17  9:54 [dpdk-dev] [PATCH 0/7] features and bugfix for hns3 PMD Min Hu (Connor)
2021-04-17  9:54 ` Min Hu (Connor) [this message]
2021-04-20  0:16   ` [dpdk-dev] [PATCH 1/7] net/hns3: check max SIMD bitwidth Ferruh Yigit
2021-04-17  9:54 ` [dpdk-dev] [PATCH 2/7] net/hns3: Rx vector add compile-time verify Min Hu (Connor)
2021-04-17  9:54 ` [dpdk-dev] [PATCH 3/7] net/hns3: remove redundant code about mbx Min Hu (Connor)
2021-04-17  9:54 ` [dpdk-dev] [PATCH 4/7] net/hns3: fix the check for DCB mode Min Hu (Connor)
2021-04-17  9:54 ` [dpdk-dev] [PATCH 5/7] net/hns3: fix the check for VMDq mode Min Hu (Connor)
2021-04-17  9:54 ` [dpdk-dev] [PATCH 6/7] net/hns3: fix FDIR lock bug Min Hu (Connor)
2021-04-17  9:54 ` [dpdk-dev] [PATCH 7/7] net/hns3: move the link speeds check to dev configure Min Hu (Connor)
2021-04-20  0:42 ` [dpdk-dev] [PATCH 0/7] features and bugfix for hns3 PMD Ferruh Yigit

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