dpdk/0122-net-hns3-check-max-SIMD-bitwidth.patch
speech_white 3a8995b1ad Update DPDK baseline version
Update DPDK version from 19.11 to 20.11 and also support
hns3 PMD for Kunpeng 920 and Kunpeng 930.

Signed-off-by: speech_white <humin29@huawei.com>
2021-06-28 00:52:34 +00:00

48 lines
1.3 KiB
Diff

From 65e9bf664b7758d9e0e722ce0b4b15869a177f19 Mon Sep 17 00:00:00 2001
From: Chengwen Feng <fengchengwen@huawei.com>
Date: Thu, 15 Apr 2021 11:52:02 +0800
Subject: [PATCH 122/189] net/hns3: check max SIMD bitwidth
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 87416a1..92d377b 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"
@@ -2790,6 +2791,8 @@ 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
@@ -2800,6 +2803,8 @@ 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