#include "suricata-common.h"
#include "conf.h"
#include "threads.h"
#include "threadvars.h"

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Data Structures
struct	ThreadsAffinityType_

Macros
#define	MAX_NUMA_NODES 16

Typedefs
typedef struct ThreadsAffinityType_	ThreadsAffinityType

Enumerations
enum	{ RECEIVE_CPU_SET, WORKER_CPU_SET, VERDICT_CPU_SET, MANAGEMENT_CPU_SET, MAX_CPU_SET }

enum	{ BALANCED_AFFINITY, EXCLUSIVE_AFFINITY, MAX_AFFINITY }

Functions
char *	AffinityGetYamlPath (ThreadsAffinityType *taf)
	Get the YAML path for the given affinity type. The path is built using the parent name (if available) and the affinity name. Do not free the returned string. More...

void	AffinitySetupLoadFromConfig (void)
	Extract CPU affinity configuration from current config file. More...

ThreadsAffinityType *	GetOrAllocAffinityTypeForIfaceOfName (const char name, const char interface_name)
	Finds affinity by its name and interface name. Interfaces are children of cpu-set names. If the queried interface is not found, then it is allocated, initialized and assigned to the queried cpu-set. More...

ThreadsAffinityType *	GetAffinityTypeForNameAndIface (const char name, const char interface_name)
	Find affinity by name (*-cpu-set name) and an interface name. More...

ThreadsAffinityType *	FindAffinityByInterface (ThreadsAffinityType parent, const char interface_name)

void	TopologyDestroy (void)

uint16_t	AffinityGetNextCPU (ThreadVars tv, ThreadsAffinityType taf)

uint16_t	UtilAffinityGetAffinedCPUNum (ThreadsAffinityType *taf)
	Return the total number of CPUs in a given affinity. More...

int	BuildCpusetWithCallback (const char name, SCConfNode node, void(Callback)(int i, void data), void *data)

void	ThreadingAffinityRegisterTests (void)
	Register all threading affinity unit tests. More...

Variables
ThreadsAffinityType	thread_affinity [MAX_CPU_SET]

Detailed Description

Author: Eric Leblond eric@.nosp@m.regi.nosp@m.t.org

Definition in file util-affinity.h.

Macro Definition Documentation

◆ MAX_NUMA_NODES

#define MAX_NUMA_NODES 16

Definition at line 71 of file util-affinity.h.

Typedef Documentation

◆ ThreadsAffinityType

typedef struct ThreadsAffinityType_ ThreadsAffinityType

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
RECEIVE_CPU_SET
WORKER_CPU_SET
VERDICT_CPU_SET
MANAGEMENT_CPU_SET
MAX_CPU_SET

Definition at line 56 of file util-affinity.h.

◆ anonymous enum

anonymous enum

Enumerator
BALANCED_AFFINITY
EXCLUSIVE_AFFINITY
MAX_AFFINITY

Definition at line 64 of file util-affinity.h.

Function Documentation

◆ AffinityGetNextCPU()

uint16_t AffinityGetNextCPU	(	ThreadVars *	tv,
		ThreadsAffinityType *	taf
	)

Definition at line 1006 of file util-affinity.c.

◆ AffinityGetYamlPath()

char* AffinityGetYamlPath ( ThreadsAffinityType * taf )

Get the YAML path for the given affinity type. The path is built using the parent name (if available) and the affinity name. Do not free the returned string.

Parameters

taf	the affinity type - if NULL, the path is built for the root node

Returns: a string containing the YAML path, or NULL if the path is too long

Definition at line 429 of file util-affinity.c.

References ThreadsAffinityType_::name, ThreadsAffinityType_::parent, and SCLogError.

◆ AffinitySetupLoadFromConfig()

void AffinitySetupLoadFromConfig ( void )

Extract CPU affinity configuration from current config file.

Definition at line 588 of file util-affinity.c.

References thread_affinity_init_done.

Referenced by RunModeInitializeThreadSettings().

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◆ BuildCpusetWithCallback()

int BuildCpusetWithCallback	(	const char *	name,
		SCConfNode *	node,
		void()(int i, void data)	Callback,
		void *	data
	)

Definition at line 227 of file util-affinity.c.

References name, next, SCLogError, StringParseUint32(), TAILQ_FOREACH, UtilCpuGetNumProcessorsOnline(), and SCConfNode_::val.

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◆ FindAffinityByInterface()

ThreadsAffinityType* FindAffinityByInterface	(	ThreadsAffinityType *	parent,
		const char *	interface_name
	)

Definition at line 113 of file util-affinity.c.

References ThreadsAffinityType_::children, ThreadsAffinityType_::name, and ThreadsAffinityType_::nb_children.

Referenced by GetAffinityTypeForNameAndIface(), and GetOrAllocAffinityTypeForIfaceOfName().

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◆ GetAffinityTypeForNameAndIface()

ThreadsAffinityType* GetAffinityTypeForNameAndIface	(	const char *	name,
		const char *	interface_name
	)

Find affinity by name (*-cpu-set name) and an interface name.

Parameters

name	the name of the affinity (e.g. worker-cpu-set, receive-cpu-set). The name is required and cannot be NULL.
interface_name	the name of the interface. If NULL, the affinity is looked up by name only.

Return values

a	pointer to the affinity or NULL if not found

Definition at line 138 of file util-affinity.c.

References FindAffinityByInterface(), MAX_CPU_SET, name, SCLogError, and thread_affinity.

Referenced by LiveGetDeviceCountWithoutAssignedThreading().

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◆ GetOrAllocAffinityTypeForIfaceOfName()

ThreadsAffinityType* GetOrAllocAffinityTypeForIfaceOfName	(	const char *	name,
		const char *	interface_name
	)

Finds affinity by its name and interface name. Interfaces are children of cpu-set names. If the queried interface is not found, then it is allocated, initialized and assigned to the queried cpu-set.

Parameters

name	the name of the affinity (e.g. worker-cpu-set, receive-cpu-set). The name is required and cannot be NULL.
interface_name	the name of the interface. If NULL, the affinity is looked up by name only.

Return values

a	pointer to the affinity or NULL if not found

Definition at line 177 of file util-affinity.c.

References FindAffinityByInterface(), MAX_CPU_SET, name, SCLogError, and thread_affinity.

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◆ ThreadingAffinityRegisterTests()

void ThreadingAffinityRegisterTests ( void )

Register all threading affinity unit tests.

Definition at line 1992 of file util-affinity.c.

References UtRegisterTest().

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◆ TopologyDestroy()

void TopologyDestroy ( void )

◆ UtilAffinityGetAffinedCPUNum()

uint16_t UtilAffinityGetAffinedCPUNum ( ThreadsAffinityType * taf )

Return the total number of CPUs in a given affinity.

Return values

the	number of affined CPUs

Definition at line 1043 of file util-affinity.c.

References ThreadsAffinityType_::cpu_set, SCMutexLock, SCMutexUnlock, ThreadsAffinityType_::taf_mutex, and UtilCpuGetNumProcessorsOnline().

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Variable Documentation

◆ thread_affinity

ThreadsAffinityType thread_affinity[MAX_CPU_SET]

store thread affinity mode for all type of threads

Definition at line 38 of file util-affinity.c.

Referenced by GetAffinityTypeForNameAndIface(), GetOrAllocAffinityTypeForIfaceOfName(), and TmThreadGetNbThreads().

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ MAX_NUMA_NODES

Typedef Documentation

◆ ThreadsAffinityType

Enumeration Type Documentation

◆ anonymous enum

◆ anonymous enum

Function Documentation

◆ AffinityGetNextCPU()

◆ AffinityGetYamlPath()

◆ AffinitySetupLoadFromConfig()

◆ BuildCpusetWithCallback()

◆ FindAffinityByInterface()

◆ GetAffinityTypeForNameAndIface()

◆ GetOrAllocAffinityTypeForIfaceOfName()

◆ ThreadingAffinityRegisterTests()

◆ TopologyDestroy()

◆ UtilAffinityGetAffinedCPUNum()

Variable Documentation

◆ thread_affinity