From: Zhihong Wang <zhihong.wang@intel.com>
To: dev@dpdk.org
Cc: yuanhan.liu@linux.intel.com, thomas.monjalon@6wind.com,
bruce.richardson@intel.com, Zhihong Wang <zhihong.wang@intel.com>
Subject: [dpdk-dev] [PATCH] config: make AVX and AVX512 configurable
Date: Thu, 27 Apr 2017 12:34:19 -0400 [thread overview]
Message-ID: <1493310859-49106-1-git-send-email-zhihong.wang@intel.com> (raw)
Making AVX and AVX512 configurable is useful for performance and power
testing.
The similar kernel patch at https://patchwork.kernel.org/patch/9618883/.
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
---
config/common_base | 6 ++++++
mk/rte.cpuflags.mk | 6 ++++++
2 files changed, 12 insertions(+)
diff --git a/config/common_base b/config/common_base
index 0b4297c..9ca94a8 100644
--- a/config/common_base
+++ b/config/common_base
@@ -103,6 +103,12 @@ CONFIG_RTE_EAL_IGB_UIO=n
CONFIG_RTE_EAL_VFIO=n
CONFIG_RTE_MALLOC_DEBUG=n
+#
+# Recognize/ignore the AVX/AVX512 CPU flags for performance/power testing
+#
+CONFIG_RTE_ENABLE_AVX=y
+CONFIG_RTE_ENABLE_AVX512=n
+
# Default driver path (or "" to disable)
CONFIG_RTE_EAL_PMD_PATH=""
diff --git a/mk/rte.cpuflags.mk b/mk/rte.cpuflags.mk
index e634abc..4288c14 100644
--- a/mk/rte.cpuflags.mk
+++ b/mk/rte.cpuflags.mk
@@ -70,8 +70,10 @@ CPUFLAGS += PCLMULQDQ
endif
ifneq ($(filter $(AUTO_CPUFLAGS),__AVX__),)
+ifeq ($(CONFIG_RTE_ENABLE_AVX),y)
CPUFLAGS += AVX
endif
+endif
ifneq ($(filter $(AUTO_CPUFLAGS),__RDRND__),)
CPUFLAGS += RDRAND
@@ -86,12 +88,16 @@ CPUFLAGS += F16C
endif
ifneq ($(filter $(AUTO_CPUFLAGS),__AVX2__),)
+ifeq ($(CONFIG_RTE_ENABLE_AVX),y)
CPUFLAGS += AVX2
endif
+endif
ifneq ($(filter $(AUTO_CPUFLAGS),__AVX512F__),)
+ifeq ($(CONFIG_RTE_ENABLE_AVX512),y)
CPUFLAGS += AVX512F
endif
+endif
# IBM Power CPU flags
ifneq ($(filter $(AUTO_CPUFLAGS),__PPC64__),)
--
2.7.4
next reply other threads:[~2017-04-27 3:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-27 16:34 Zhihong Wang [this message]
2017-04-27 9:08 ` Thomas Monjalon
2017-04-27 9:18 ` Wang, Zhihong
2017-04-27 9:20 ` Thomas Monjalon
2017-04-27 10:03 ` Wang, Zhihong
2017-04-27 23:00 ` [dpdk-dev] [PATCH v2] " Zhihong Wang
2017-04-28 2:08 ` Yang, Zhiyong
2017-04-30 21:19 ` Thomas Monjalon
2017-04-28 5:07 ` Yuanhan Liu
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