dao_graph_feature_arc_worker.h File Reference

#include <stddef.h>
#include <stdalign.h>
#include <dao_graph_feature_arc.h>
#include <rte_bitops.h>

Go to the source code of this file.

Data Structures
struct	dao_graph_feature_data
struct	dao_graph_feature
struct	dao_graph_feature_arc
struct	feature_arc_main

Typedefs
typedef struct dao_graph_feature_data	dao_graph_feature_data_t
typedef struct feature_arc_main	dao_graph_feature_arc_main_t

Functions
static struct dao_graph_feature_data *	dao_graph_feature_data_get (struct dao_graph_feature *df, uint8_t feature_index)
static struct dao_graph_feature *	dao_graph_feature_get (struct dao_graph_feature_arc *dfl, uint32_t index)
static int	dao_graph_feature_arc_has_first_feature (struct dao_graph_feature_arc *dfl, uint32_t index, dao_graph_feature_t *feature)
static int	dao_graph_feature_arc_has_next_feature (struct dao_graph_feature_arc *dfl, uint32_t index, dao_graph_feature_t *feature)
static void	dao_graph_feature_arc_prefetch (struct dao_graph_feature_arc *dfl, uint32_t index)
static int	dao_graph_feature_arc_num_enabled_features (struct dao_graph_feature_arc *arc)
static int	dao_graph_feature_arc_has_feature (struct dao_graph_feature_arc *dfl, uint32_t index, dao_graph_feature_t *feature)
static void	__dao_graph_prefetch_data_prefetch (struct dao_graph_feature_arc *dfl, int index, dao_graph_feature_t feature)
static void	dao_graph_feature_data_prefetch (struct dao_graph_feature_arc *dfl, uint32_t index, dao_graph_feature_t feature)
static int	dao_graph_feature_arc_first_feature_data_get (struct dao_graph_feature_arc *dfl, dao_graph_feature_t feature, uint32_t index, rte_edge_t *edge, int64_t *data)
static int	dao_graph_feature_arc_next_feature_data_get (struct dao_graph_feature_arc *dfl, dao_graph_feature_t feature, uint32_t index, rte_edge_t *edge, int64_t *data)
static int	dao_graph_feature_arc_feature_data_get (struct dao_graph_feature_arc *dfl, dao_graph_feature_t feature, uint32_t index, rte_edge_t *edge, int64_t *data)

Detailed Description

dao_graph_feature_arc_worker.h

Defines fast path structure

Definition in file dao_graph_feature_arc_worker.h.

Typedef Documentation

dao_graph_feature_data_t

typedef struct dao_graph_feature_data dao_graph_feature_data_t

DAO_GRAPH feature data representing a fast path feature object on an interface/index

dao_graph_feature_arc_main_t

typedef struct feature_arc_main dao_graph_feature_arc_main_t

Feature arc main

Function Documentation

dao_graph_feature_data_get()

static struct dao_graph_feature_data * dao_graph_feature_data_get ( struct dao_graph_feature *  df, uint8_t  feature_index  )

inlinestatic

Get dao_graph feature data object for a index in feature

Parameters

df	Feature pointer
feature_index	Index of feature maintained in slow path linked list

Returns

Valid feature data

Definition at line 188 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_get()

static struct dao_graph_feature * dao_graph_feature_get ( struct dao_graph_feature_arc *  dfl, uint32_t  index  )

inlinestatic

Get dao_graph_feature object for a given interface/index from feature arc

Parameters

dfl	Feature arc pointer
index	Interface index

Returns

Valid feature pointer

Definition at line 205 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_has_first_feature()

static int dao_graph_feature_arc_has_first_feature ( struct dao_graph_feature_arc *  dfl, uint32_t  index, dao_graph_feature_t *  feature  )

inlinestatic

Fast path API to check if first feature enabled on a feature arc

Must be called in feature_arc->start_node processing

Parameters

	dfl	Feature arc object
	index	Interface/Index
[out]	feature	Pointer to dao_graph_feature_t. Valid if API returns 1

Returns

1: If feature is enabled 0: If feature is not enabled

Definition at line 228 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_has_next_feature()

static int dao_graph_feature_arc_has_next_feature ( struct dao_graph_feature_arc *  dfl, uint32_t  index, dao_graph_feature_t *  feature  )

inlinestatic

Fast path API to get next feature when current node is already on an feature arc and not consuming packet. This feature must forward the packet to next enabled feature by passing returned dao_graph_feature_t to dao_graph_feature_arc_next_feature_data_get()

Parameters

	dfl	Feature arc object
	index	Interface/Index
[out]	feature	Pointer to dao_graph_feature_t. Valid if API returns 1

Returns

1: If next feature is enabled 0: If next feature is not enabled

Definition at line 252 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_prefetch()

static void dao_graph_feature_arc_prefetch ( struct dao_graph_feature_arc *  dfl, uint32_t  index  )

inlinestatic

Prefetch feature arc fast path cache line

Parameters

dfl	DAO_GRAPH feature arc object
index	Interface/index

Definition at line 285 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_num_enabled_features()

static int dao_graph_feature_arc_num_enabled_features ( struct dao_graph_feature_arc *  arc )

inlinestatic

Get number of enabled features in an arc

Parameters

arc	DAO_GRAPH feature arc object

Definition at line 299 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_has_feature()

static int dao_graph_feature_arc_has_feature ( struct dao_graph_feature_arc *  dfl, uint32_t  index, dao_graph_feature_t *  feature  )

inlinestatic

Fast path API to check if any feature enabled on a feature arc

Parameters

	dfl	Feature arc object
	index	Interface/Index
[out]	feature	Pointer to dao_graph_feature_t. Valid if API returns 1

Returns

1: If feature is enabled 0: If feature is not enabled

Definition at line 320 of file dao_graph_feature_arc_worker.h.

__dao_graph_prefetch_data_prefetch()

static void __dao_graph_prefetch_data_prefetch ( struct dao_graph_feature_arc *  dfl, int  index, dao_graph_feature_t  feature  )

inlinestatic

Prefetch feature data upfront

Parameters

dfl	DAO_GRAPH feature arc object
index	Interface/index
feature	Pointer to feature object returned from dao_graph_feature_arc_has_feature() or dao_graph_feature_arc_first_feature_data_get()

Definition at line 353 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_data_prefetch()

static void dao_graph_feature_data_prefetch ( struct dao_graph_feature_arc *  dfl, uint32_t  index, dao_graph_feature_t  feature  )

inlinestatic

Prefetch feature data upfront. Perform sanity

Parameters

dfl	DAO_GRAPH feature arc object
index	Interface/index
feature	Pointer to feature object returned from dao_graph_feature_arc_has_feature() or dao_graph_feature_arc_first_feature_data_get()

Definition at line 374 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_first_feature_data_get()

static int dao_graph_feature_arc_first_feature_data_get ( struct dao_graph_feature_arc *  dfl, dao_graph_feature_t  feature, uint32_t  index, rte_edge_t *  edge, int64_t *  data  )

inlinestatic

Fast path API to get first feature data aka {edge, int32_t data}

Must be called in feature_arc->start_node processing

Parameters

	dfl	Feature arc object
	feature	returned from dao_graph_feature_arc_has_feature()
	index	Interface/Index
[out]	edge	Pointer to rte_node edge. Valid if API returns Success
[out]	data	Pointer to int64_t data set via dao_graph_feature_enable(). Valid if API returns Success

Returns

0: Success <0: Failure

Definition at line 410 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_next_feature_data_get()

static int dao_graph_feature_arc_next_feature_data_get ( struct dao_graph_feature_arc *  dfl, dao_graph_feature_t  feature, uint32_t  index, rte_edge_t *  edge, int64_t *  data  )

inlinestatic

Fast path API to get next feature data aka {edge, int32_t data}

Must NOT be called in feature_arc->start_node processing instead must be called in intermediate feature nodes on a featur-arc.

Parameters

	dfl	Feature arc object
	feature	returned from dao_graph_feature_arc_has_next_feature()
	index	Interface/Index
[out]	edge	Pointer to rte_node edge. Valid if API returns Success
[out]	data	Pointer to int64_t data set via dao_graph_feature_enable(). Valid if API returns Success

Returns

0: Success <0: Failure

Definition at line 458 of file dao_graph_feature_arc_worker.h.

dao_graph_feature_arc_feature_data_get()

static int dao_graph_feature_arc_feature_data_get ( struct dao_graph_feature_arc *  dfl, dao_graph_feature_t  feature, uint32_t  index, rte_edge_t *  edge, int64_t *  data  )

inlinestatic

Fast path API to get next feature data aka {edge, int32_t data}

Parameters

	dfl	Feature arc object
	feature	returned from dao_graph_feature_arc_has_feature()
	index	Interface/Index
[out]	edge	Pointer to rte_node edge. Valid if API returns Success
[out]	data	Pointer to int64_t data set via dao_graph_feature_enable(). Valid if API returns Success

Returns

0: Success <0: Failure

Definition at line 503 of file dao_graph_feature_arc_worker.h.