From: Chengwen Feng <fengcheng...@huawei.com>
This patch supports check max SIMD bitwidth when choosing NEON and SVE
vector path.
Signed-off-by: Chengwen Feng <fengcheng...@huawei.com>
Signed-off-by: Min Hu (Connor) <humi...@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 c29c0cf..85ee67a 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"
@@ -2788,6 +2789,8 @@ 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
@@ -2798,6 +2801,8 @@ 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
