From: Ciara Power <ciara.power@intel.com>
Date: Mon, 19 Oct 2020 13:48:54 +0000 (+0200)
Subject: member: check max SIMD bitwidth
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=c9cd5806f7835e73748c6bbb9cedcda63c797302;p=dpdk.git

member: check max SIMD bitwidth

When choosing a vector path to take, an extra condition must be
satisfied to ensure the max SIMD bitwidth allows for the CPU
enabled path.

Signed-off-by: Ciara Power <ciara.power@intel.com>
Acked-by: Yipeng Wang <yipeng1.wang@intel.com>
---

diff --git a/lib/librte_member/rte_member_ht.c b/lib/librte_member/rte_member_ht.c
index 3ea293a094..a85561b472 100644
--- a/lib/librte_member/rte_member_ht.c
+++ b/lib/librte_member/rte_member_ht.c
@@ -7,6 +7,7 @@
 #include <rte_prefetch.h>
 #include <rte_random.h>
 #include <rte_log.h>
+#include <rte_vect.h>
 
 #include "rte_member.h"
 #include "rte_member_ht.h"
@@ -113,7 +114,8 @@ rte_member_create_ht(struct rte_member_setsum *ss,
 	}
 #if defined(RTE_ARCH_X86)
 	if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2) &&
-			RTE_MEMBER_BUCKET_ENTRIES == 16)
+			RTE_MEMBER_BUCKET_ENTRIES == 16 &&
+			rte_vect_get_max_simd_bitwidth() >= RTE_VECT_SIMD_256)
 		ss->sig_cmp_fn = RTE_MEMBER_COMPARE_AVX2;
 	else
 #endif