event_machine_hw_specific.c File Reference

#include "em_include.h"

Include dependency graph for event_machine_hw_specific.c:

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Functions
void	em_core_mask_zero (em_core_mask_t *mask)
void	em_core_mask_set (int core, em_core_mask_t *mask)
void	em_core_mask_clr (int core, em_core_mask_t *mask)
int	em_core_mask_isset (int core, const em_core_mask_t *mask)
int	em_core_mask_iszero (const em_core_mask_t *mask)
int	em_core_mask_equal (const em_core_mask_t *mask1, const em_core_mask_t *mask2)
void	em_core_mask_set_count (int count, em_core_mask_t *mask)
void	em_core_mask_copy (em_core_mask_t *dst, const em_core_mask_t *src)
int	em_core_mask_count (const em_core_mask_t *mask)
void	em_core_mask_set_bits (const uint64_t bits[], int len, em_core_mask_t *mask)
int	em_core_mask_get_bits (uint64_t bits[], int len, const em_core_mask_t *mask)
int	em_core_mask_set_str (const char *mask_str, em_core_mask_t *mask)
void	em_core_mask_tostr (char *mask_str, int len, const em_core_mask_t *mask)
int	em_core_mask_idx (int n, const em_core_mask_t *mask)
void	em_core_mask_and (em_core_mask_t *dst, const em_core_mask_t *src1, const em_core_mask_t *src2)
void	em_core_mask_or (em_core_mask_t *dst, const em_core_mask_t *src1, const em_core_mask_t *src2)
void	em_core_mask_xor (em_core_mask_t *dst, const em_core_mask_t *src1, const em_core_mask_t *src2)

Detailed Description

Event Machine HW specific functions and other additions.

Definition in file event_machine_hw_specific.c.

Function Documentation

em_core_mask_and()

void em_core_mask_and	(	em_core_mask_t *	dst,
		const em_core_mask_t *	src1,
		const em_core_mask_t *	src2
	)

Bitwise AND operation on two masks, store the result in 'dst'

dst = src1 & src2

Parameters

[out]	dst	Destination core mask, result is stored here
	src1	Source mask #1
	src2	Source mask #2

Definition at line 181 of file event_machine_hw_specific.c.

em_core_mask_clr()

void em_core_mask_clr	(	int	core,
		em_core_mask_t *	mask
	)

Clear a bit in the mask.

Parameters

	core	Core id
[out]	mask	Core mask

Definition at line 53 of file event_machine_hw_specific.c.

em_core_mask_copy()

void em_core_mask_copy	(	em_core_mask_t *	dst,
		const em_core_mask_t *	src
	)

Copy core mask

Parameters

[out]	dst	Destination core mask
	src	Source core mask

Definition at line 82 of file event_machine_hw_specific.c.

em_core_mask_count()

int em_core_mask_count

(

const em_core_mask_t *

mask

)

Count the number of bits set in the mask.

Parameters

mask

Core mask

Returns

Number of bits set

Definition at line 87 of file event_machine_hw_specific.c.

em_core_mask_equal()

int em_core_mask_equal	(	const em_core_mask_t *	mask1,
		const em_core_mask_t *	mask2
	)

Test if two masks are equal

Parameters

mask1	First core mask
mask2	Second core mask

Returns

Non-zero if the two masks are equal

Definition at line 71 of file event_machine_hw_specific.c.

em_core_mask_get_bits()

int em_core_mask_get_bits	(	uint64_t	bits[],
		int	len,
		const em_core_mask_t *	mask
	)

Get core mask, stored in a uint64_t array for the user

core 0: bits[0] = 0x1 (len = 1) core 1: bits[0] = 0x2 (len = 1) ... core 64: bits[0] = 0x0, bits[1] = 0x1 (len = 2) core 65: bits[0] = 0x0, bits[1] = 0x2 (len = 2) ... cores 0-127: bits[0]=0xffffffffffffffff, bits[1]=0xffffffffffffffff (len=2) ...

Parameters

[out]	bits	Array of uint64_t:s that the core mask will be stored in.
	len	Number of array elements in bits[].
	mask	Core mask to get bits from.

Returns

The number of uint64_t:s written into bits[].

Definition at line 115 of file event_machine_hw_specific.c.

em_core_mask_idx()

int em_core_mask_idx	(	int	n,
		const em_core_mask_t *	mask
	)

Return the index (position) of the Nth set bit in the core mask

Parameters

n	Nth set bit, note n=1 means first set bit, n=[1...MaxCores]
mask	Core mask

Returns

Index of the Nth set bit, <0 on error or if no such bit.

Definition at line 164 of file event_machine_hw_specific.c.

em_core_mask_isset()

int em_core_mask_isset	(	int	core,
		const em_core_mask_t *	mask
	)

Test if a bit is set in the mask.

Parameters

core	Core id
mask	Core mask

Returns

Non-zero if core id is set in the mask

Definition at line 58 of file event_machine_hw_specific.c.

em_core_mask_iszero()

int em_core_mask_iszero

(

const em_core_mask_t *

mask

)

Test if the mask is all zero.

Parameters

mask

Core mask

Returns

Non-zero if the mask is all zero

Definition at line 63 of file event_machine_hw_specific.c.

em_core_mask_or()

void em_core_mask_or	(	em_core_mask_t *	dst,
		const em_core_mask_t *	src1,
		const em_core_mask_t *	src2
	)

Bitwise OR operation on two masks, store the result in 'dst'

dst = src1 | src2

Parameters

[out]	dst	Destination core mask, result is stored here
	src1	Source mask #1
	src2	Source mask #2

Definition at line 188 of file event_machine_hw_specific.c.

em_core_mask_set()

void em_core_mask_set	(	int	core,
		em_core_mask_t *	mask
	)

Set a bit in the mask.

Parameters

	core	Core id
[out]	mask	Core mask

Definition at line 48 of file event_machine_hw_specific.c.

em_core_mask_set_bits()

void em_core_mask_set_bits	(	const uint64_t	bits[],
		int	len,
		em_core_mask_t *	mask
	)

Set specified bits from 'bits[]' in core mask.

core 0: bits[0] = 0x1 (len = 1) core 1: bits[0] = 0x2 (len = 1) ... core 64: bits[0] = 0x0, bits[1] = 0x1 (len = 2) core 65: bits[0] = 0x0, bits[1] = 0x2 (len = 2) ... cores 0-127: bits[0]=0xffffffffffffffff, bits[1]=0xffffffffffffffff (len=2) ...

Parameters

	bits	Array of uint64_t:s with the bits to set in the core mask
	len	Number of array elements in bits[].
[out]	mask	Core mask to set.

Note

bits ar 'or'ed into mask, so any previously set bits will remain set.

Definition at line 92 of file event_machine_hw_specific.c.

em_core_mask_set_count()

void em_core_mask_set_count	(	int	count,
		em_core_mask_t *	mask
	)

Set a range (0...count-1) of bits in the mask.

Parameters

	count	Number of bits to set
[out]	mask	Core mask

Definition at line 76 of file event_machine_hw_specific.c.

em_core_mask_set_str()

int em_core_mask_set_str	(	const char *	mask_str,
		em_core_mask_t *	mask
	)

Set bits in a mask according to a given string.

Parameters

	mask_str	String containing '0xcoremask' to set
[out]	mask	Core mask to set

Returns

Zero (0) on success, non-zero on error.

Note

bits ar 'or'ed into mask, so any previously set bits will remain set.

Definition at line 146 of file event_machine_hw_specific.c.

em_core_mask_tostr()

void em_core_mask_tostr	(	char *	mask_str,
		int	len,
		const em_core_mask_t *	mask
	)

Get core mask in string format

Parameters

[out]	mask_str	String into which the core mask will be printed
	len	Length of 'mask_str'
	mask	Core mask to convert to string format

Definition at line 156 of file event_machine_hw_specific.c.

em_core_mask_xor()

void em_core_mask_xor	(	em_core_mask_t *	dst,
		const em_core_mask_t *	src1,
		const em_core_mask_t *	src2
	)

Bitwise XOR operation on two masks, store the result in 'dst'

dst = src1 ^ src2

Parameters

[out]	dst	Destination core mask, result is stored here
	src1	Source mask #1
	src2	Source mask #2

Definition at line 195 of file event_machine_hw_specific.c.

em_core_mask_zero()

void em_core_mask_zero

(

em_core_mask_t *

mask

)

Zero the whole mask.

Parameters

[out]

mask

Core mask to zero (clear)

Definition at line 43 of file event_machine_hw_specific.c.