From: Tyler Retzlaff <roretzla@linux.microsoft.com>
To: dev@dpdk.org
Cc: Bruce Richardson <bruce.richardson@intel.com>,
Sameh Gobriel <sameh.gobriel@intel.com>,
Vladimir Medvedkin <vladimir.medvedkin@intel.com>,
Yipeng Wang <yipeng1.wang@intel.com>,
Tyler Retzlaff <roretzla@linux.microsoft.com>
Subject: [PATCH] hash: provide crc32 functions based on intrinsics
Date: Wed, 20 Mar 2024 14:28:47 -0700 [thread overview]
Message-ID: <1710970127-25938-2-git-send-email-roretzla@linux.microsoft.com> (raw)
In-Reply-To: <1710970127-25938-1-git-send-email-roretzla@linux.microsoft.com>
Provide crc32 inline functions implemented using intrinsics for MSVC.
Signed-off-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
---
lib/hash/rte_crc_x86.h | 46 ++++++++++++++++++++++++++++++++++++----------
1 file changed, 36 insertions(+), 10 deletions(-)
diff --git a/lib/hash/rte_crc_x86.h b/lib/hash/rte_crc_x86.h
index 3b865e2..b2ac07f 100644
--- a/lib/hash/rte_crc_x86.h
+++ b/lib/hash/rte_crc_x86.h
@@ -5,6 +5,31 @@
#ifndef _RTE_CRC_X86_H_
#define _RTE_CRC_X86_H_
+#ifdef RTE_TOOLCHAIN_MSVC
+static inline uint32_t
+crc32c_sse42_u8(uint8_t data, uint32_t init_val)
+{
+ return _mm_crc32_u8(init_val, data);
+}
+
+static inline uint32_t
+crc32c_sse42_u16(uint16_t data, uint32_t init_val)
+{
+ return _mm_crc32_u16(init_val, data);
+}
+
+static inline uint32_t
+crc32c_sse42_u32(uint32_t data, uint32_t init_val)
+{
+ return _mm_crc32_u32(init_val, data);
+}
+
+static inline uint32_t
+crc32c_sse42_u64(uint64_t data, uint64_t init_val)
+{
+ return _mm_crc32_u64(init_val, data);
+}
+#else
static inline uint32_t
crc32c_sse42_u8(uint8_t data, uint32_t init_val)
{
@@ -36,6 +61,17 @@
}
static inline uint32_t
+crc32c_sse42_u64(uint64_t data, uint64_t init_val)
+{
+ __asm__ volatile(
+ "crc32q %[data], %[init_val];"
+ : [init_val] "+r" (init_val)
+ : [data] "rm" (data));
+ return (uint32_t)init_val;
+}
+#endif
+
+static inline uint32_t
crc32c_sse42_u64_mimic(uint64_t data, uint64_t init_val)
{
union {
@@ -49,16 +85,6 @@
return (uint32_t)init_val;
}
-static inline uint32_t
-crc32c_sse42_u64(uint64_t data, uint64_t init_val)
-{
- __asm__ volatile(
- "crc32q %[data], %[init_val];"
- : [init_val] "+r" (init_val)
- : [data] "rm" (data));
- return (uint32_t)init_val;
-}
-
/*
* Use single crc32 instruction to perform a hash on a byte value.
* Fall back to software crc32 implementation in case SSE4.2 is
--
1.8.3.1
prev parent reply other threads:[~2024-03-20 21:28 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-20 21:28 [PATCH] provide crc32 functions based on intrinsics for MSVC Tyler Retzlaff
2024-03-20 21:28 ` Tyler Retzlaff [this message]
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