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[ovs-dev,v3,09/12] dpdk: add additional CPU ISA detection strings

Message ID 20210517135708.685517-10-kumar.amber@intel.com
State Superseded
Headers show
Series MFEX Infrastructure + Optimizations | expand

Commit Message

Kumar Amber May 17, 2021, 1:57 p.m. UTC 
From: Harry van Haaren <harry.van.haaren@intel.com>

This commit enables OVS to at runtime check for more detailed
AVX512 capabilities, specifically Byte and Word (BW) extensions,
and Vector Bit Manipulation Instructions (VBMI).

These instructions will be used in the CPU ISA optimized
implementations of traffic profile aware miniflow extract.

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
---
 lib/dpdk.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/lib/dpdk.c b/lib/dpdk.c
index a9494a40f..9d13e4ab7 100644
--- a/lib/dpdk.c
+++ b/lib/dpdk.c
@@ -655,6 +655,8 @@  dpdk_get_cpu_has_isa(const char *arch, const char *feature)
 #if __x86_64__
     /* CPU flags only defined for the architecture that support it. */
     CHECK_CPU_FEATURE(feature, "avx512f", RTE_CPUFLAG_AVX512F);
+    CHECK_CPU_FEATURE(feature, "avx512bw", RTE_CPUFLAG_AVX512BW);
+    CHECK_CPU_FEATURE(feature, "avx512vbmi", RTE_CPUFLAG_AVX512VBMI);
     CHECK_CPU_FEATURE(feature, "avx512vpopcntdq", RTE_CPUFLAG_AVX512VPOPCNTDQ);
     CHECK_CPU_FEATURE(feature, "bmi2", RTE_CPUFLAG_BMI2);
 #endif