rte_hash_crc.h - Man Page
Synopsis
#include <stdint.h>
#include <rte_branch_prediction.h>
#include <rte_common.h>
#include <rte_config.h>
#include <rte_cpuflags.h>
#include <rte_log.h>
#include 'rte_crc_sw.h'
#include 'rte_crc_generic.h'
Functions
static void rte_hash_crc_set_alg (uint8_t alg)
static uint32_t rte_hash_crc_1byte (uint8_t data, uint32_t init_val)
static uint32_t rte_hash_crc_2byte (uint16_t data, uint32_t init_val)
static uint32_t rte_hash_crc_4byte (uint32_t data, uint32_t init_val)
static uint32_t rte_hash_crc_8byte (uint64_t data, uint32_t init_val)
static uint32_t rte_hash_crc (const void *data, uint32_t data_len, uint32_t init_val)
Detailed Description
RTE CRC Hash
Definition in file rte_hash_crc.h.
Function Documentation
static void rte_hash_crc_set_alg (uint8_t alg) [inline], [static]
Allow or disallow use of SSE4.2/ARMv8 intrinsics for CRC32 hash calculation.
- Parameters
alg An OR of following flags:
- (CRC32_SW) Don't use SSE4.2/ARMv8 intrinsics (default non-[x86/ARMv8])
- (CRC32_SSE42) Use SSE4.2 intrinsics if available
- (CRC32_SSE42_x64) Use 64-bit SSE4.2 intrinsic if available (default x86)
- (CRC32_ARM64) Use ARMv8 CRC intrinsic if available (default ARMv8)
Definition at line 56 of file rte_hash_crc.h.
static uint32_t rte_hash_crc_1byte (uint8_t data, uint32_t init_val) [inline], [static]
Use single CRC32 instruction to perform a hash on a byte value.
- Parameters
data Data to perform hash on.
init_val Value to initialise hash generator.
Returns
32bit calculated hash value.
static uint32_t rte_hash_crc_2byte (uint16_t data, uint32_t init_val) [inline], [static]
Use single CRC32 instruction to perform a hash on a 2 bytes value.
- Parameters
data Data to perform hash on.
init_val Value to initialise hash generator.
Returns
32bit calculated hash value.
static uint32_t rte_hash_crc_4byte (uint32_t data, uint32_t init_val) [inline], [static]
Use single CRC32 instruction to perform a hash on a 4 bytes value.
- Parameters
data Data to perform hash on.
init_val Value to initialise hash generator.
Returns
32bit calculated hash value.
static uint32_t rte_hash_crc_8byte (uint64_t data, uint32_t init_val) [inline], [static]
Use single CRC32 instruction to perform a hash on a 8 bytes value.
- Parameters
data Data to perform hash on.
init_val Value to initialise hash generator.
Returns
32bit calculated hash value.
static uint32_t rte_hash_crc (const void * data, uint32_t data_len, uint32_t init_val) [inline], [static]
Calculate CRC32 hash on user-supplied byte array.
- Parameters
data Data to perform hash on.
data_len How many bytes to use to calculate hash value.
init_val Value to initialise hash generator.
Returns
32bit calculated hash value.
Definition at line 167 of file rte_hash_crc.h.
Author
Generated automatically by Doxygen for DPDK from the source code.
Referenced By
The man pages rte_hash_crc(3), rte_hash_crc_1byte(3), rte_hash_crc_2byte(3), rte_hash_crc_4byte(3), rte_hash_crc_8byte(3) and rte_hash_crc_set_alg(3) are aliases of rte_hash_crc.h(3).