crc32_sse42.c File Reference

#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/gsb_crc32.h>

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Macros
#define	POLY   0x82f63b78
#define	LONG   128
#define	SHORT   64

Functions
	__FBSDID ("$FreeBSD$")
static __inline uint32_t	_mm_crc32_u8 (uint32_t x, uint8_t y)
static __inline uint32_t	_mm_crc32_u32 (uint32_t x, uint32_t y)
static uint32_t	gf2_matrix_times (uint32_t *mat, uint32_t vec)
static void	gf2_matrix_square (uint32_t *square, uint32_t *mat)
static void	crc32c_zeros_op (uint32_t *even, size_t len)
static void	crc32c_zeros (uint32_t zeros[][256], size_t len)
static uint32_t	crc32c_shift (uint32_t zeros[][256], uint32_t crc)
static void	crc32c_init_hw (void)
	SYSINIT (crc32c_sse42, SI_SUB_LOCK, SI_ORDER_ANY, crc32c_init_hw, NULL)
uint32_t	sse42_crc32c (uint32_t crc, const unsigned char *buf, unsigned len)

Variables
static uint32_t	crc32c_long [4][256]
static uint32_t	crc32c_2long [4][256]
static uint32_t	crc32c_short [4][256]
static uint32_t	crc32c_2short [4][256]

Macro Definition Documentation

LONG

#define LONG   128

Definition at line 78 of file crc32_sse42.c.

POLY

#define POLY   0x82f63b78

Definition at line 72 of file crc32_sse42.c.

SHORT

#define SHORT   64

Definition at line 79 of file crc32_sse42.c.

Function Documentation

__FBSDID()

__FBSDID

(

"$FreeBSD$"

)

_mm_crc32_u32()

static __inline uint32_t _mm_crc32_u32 ( uint32_t  x, uint32_t  y  )

static

Definition at line 64 of file crc32_sse42.c.

Referenced by sse42_crc32c().

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_mm_crc32_u8()

static __inline uint32_t _mm_crc32_u8 ( uint32_t  x, uint8_t  y  )

static

Definition at line 42 of file crc32_sse42.c.

Referenced by sse42_crc32c().

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crc32c_init_hw()

static void crc32c_init_hw ( void  )

static

Definition at line 205 of file crc32_sse42.c.

References crc32c_2long, crc32c_2short, crc32c_long, crc32c_short, crc32c_zeros(), LONG, and SHORT.

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crc32c_shift()

static uint32_t crc32c_shift ( uint32_t  zeros[][256], uint32_t  crc  )

inlinestatic

Definition at line 193 of file crc32_sse42.c.

Referenced by sse42_crc32c().

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crc32c_zeros()

static void crc32c_zeros ( uint32_t  zeros[][256], size_t  len  )

static

Definition at line 177 of file crc32_sse42.c.

References crc32c_zeros_op(), and gf2_matrix_times().

Referenced by crc32c_init_hw().

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crc32c_zeros_op()

static void crc32c_zeros_op ( uint32_t *  even, size_t  len  )

static

Definition at line 133 of file crc32_sse42.c.

References gf2_matrix_square(), and POLY.

Referenced by crc32c_zeros().

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gf2_matrix_square()

static void gf2_matrix_square ( uint32_t *  square, uint32_t *  mat  )

inlinestatic

Definition at line 117 of file crc32_sse42.c.

References gf2_matrix_times().

Referenced by crc32c_zeros_op().

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gf2_matrix_times()

static uint32_t gf2_matrix_times ( uint32_t *  mat, uint32_t  vec  )

inlinestatic

Definition at line 98 of file crc32_sse42.c.

Referenced by crc32c_zeros(), and gf2_matrix_square().

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sse42_crc32c()

uint32_t sse42_crc32c	(	uint32_t	crc,
		const unsigned char *	buf,
		unsigned	len
	)

Definition at line 218 of file crc32_sse42.c.

References _mm_crc32_u32(), _mm_crc32_u8(), crc32c_2long, crc32c_2short, crc32c_long, crc32c_shift(), crc32c_short, LONG, and SHORT.

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SYSINIT()

SYSINIT	(	crc32c_sse42	,
		SI_SUB_LOCK	,
		SI_ORDER_ANY	,
		crc32c_init_hw	,
		NULL
	)

Variable Documentation

crc32c_2long

uint32_t crc32c_2long[4][256]

static

Definition at line 87 of file crc32_sse42.c.

Referenced by crc32c_init_hw(), and sse42_crc32c().

crc32c_2short

uint32_t crc32c_2short[4][256]

static

Definition at line 89 of file crc32_sse42.c.

Referenced by crc32c_init_hw(), and sse42_crc32c().

crc32c_long

uint32_t crc32c_long[4][256]

static

Definition at line 86 of file crc32_sse42.c.

Referenced by crc32c_init_hw(), and sse42_crc32c().

crc32c_short

uint32_t crc32c_short[4][256]

static

Definition at line 88 of file crc32_sse42.c.

Referenced by crc32c_init_hw(), and sse42_crc32c().