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-rw-r--r--src/dpdk22/lib/librte_hash/rte_crc_arm64.h151
1 files changed, 0 insertions, 151 deletions
diff --git a/src/dpdk22/lib/librte_hash/rte_crc_arm64.h b/src/dpdk22/lib/librte_hash/rte_crc_arm64.h
deleted file mode 100644
index 02e26bca..00000000
--- a/src/dpdk22/lib/librte_hash/rte_crc_arm64.h
+++ /dev/null
@@ -1,151 +0,0 @@
-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2015 Cavium networks. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Cavium networks nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _RTE_CRC_ARM64_H_
-#define _RTE_CRC_ARM64_H_
-
-/**
- * @file
- *
- * RTE CRC arm64 Hash
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-#include <rte_cpuflags.h>
-#include <rte_branch_prediction.h>
-#include <rte_common.h>
-
-static inline uint32_t
-crc32c_arm64_u32(uint32_t data, uint32_t init_val)
-{
- asm(".arch armv8-a+crc");
- __asm__ volatile(
- "crc32cw %w[crc], %w[crc], %w[value]"
- : [crc] "+r" (init_val)
- : [value] "r" (data));
- return init_val;
-}
-
-static inline uint32_t
-crc32c_arm64_u64(uint64_t data, uint32_t init_val)
-{
- asm(".arch armv8-a+crc");
- __asm__ volatile(
- "crc32cx %w[crc], %w[crc], %x[value]"
- : [crc] "+r" (init_val)
- : [value] "r" (data));
- return init_val;
-}
-
-/**
- * Allow or disallow use of arm64 SIMD instrinsics for CRC32 hash
- * calculation.
- *
- * @param alg
- * An OR of following flags:
- * - (CRC32_SW) Don't use arm64 crc intrinsics
- * - (CRC32_ARM64) Use ARMv8 CRC intrinsic if available
- *
- */
-static inline void
-rte_hash_crc_set_alg(uint8_t alg)
-{
- switch (alg) {
- case CRC32_ARM64:
- if (!rte_cpu_get_flag_enabled(RTE_CPUFLAG_CRC32))
- alg = CRC32_SW;
- case CRC32_SW:
- crc32_alg = alg;
- default:
- break;
- }
-}
-
-/* Setting the best available algorithm */
-static inline void __attribute__((constructor))
-rte_hash_crc_init_alg(void)
-{
- rte_hash_crc_set_alg(CRC32_ARM64);
-}
-
-/**
- * Use single crc32 instruction to perform a hash on a 4 byte value.
- * Fall back to software crc32 implementation in case arm64 crc intrinsics is
- * not supported
- *
- * @param data
- * Data to perform hash on.
- * @param init_val
- * Value to initialise hash generator.
- * @return
- * 32bit calculated hash value.
- */
-static inline uint32_t
-rte_hash_crc_4byte(uint32_t data, uint32_t init_val)
-{
- if (likely(crc32_alg & CRC32_ARM64))
- return crc32c_arm64_u32(data, init_val);
-
- return crc32c_1word(data, init_val);
-}
-
-/**
- * Use single crc32 instruction to perform a hash on a 8 byte value.
- * Fall back to software crc32 implementation in case arm64 crc intrinsics is
- * not supported
- *
- * @param data
- * Data to perform hash on.
- * @param init_val
- * Value to initialise hash generator.
- * @return
- * 32bit calculated hash value.
- */
-static inline uint32_t
-rte_hash_crc_8byte(uint64_t data, uint32_t init_val)
-{
- if (likely(crc32_alg == CRC32_ARM64))
- return crc32c_arm64_u64(data, init_val);
-
- return crc32c_2words(data, init_val);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _RTE_CRC_ARM64_H_ */