[dpdk-dev] [PATCH v8 13/18] distributor: add checks for max SIMD bitwidth

Ciara Power ciara.power at intel.com
Fri Oct 16 10:13:15 CEST 2020


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.

Cc: David Hunt <david.hunt at intel.com>

Signed-off-by: Ciara Power <ciara.power at intel.com>
Acked-by: David Hunt <david.hunt at intel.com>

---
v4: Updated enum name.
---
 lib/librte_distributor/rte_distributor.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/librte_distributor/rte_distributor.c b/lib/librte_distributor/rte_distributor.c
index 1c047f065a..05e61dddfc 100644
--- a/lib/librte_distributor/rte_distributor.c
+++ b/lib/librte_distributor/rte_distributor.c
@@ -636,7 +636,8 @@ rte_distributor_create(const char *name,
 
 	d->dist_match_fn = RTE_DIST_MATCH_SCALAR;
 #if defined(RTE_ARCH_X86)
-	d->dist_match_fn = RTE_DIST_MATCH_VECTOR;
+	if (rte_get_max_simd_bitwidth() >= RTE_SIMD_128)
+		d->dist_match_fn = RTE_DIST_MATCH_VECTOR;
 #endif
 
 	/*
-- 
2.22.0



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