Provided by: dpdk-doc_24.11.3-1_all 
NAME
rte_rib.h
SYNOPSIS
#include <stdlib.h>
#include <stdint.h>
Data Structures
struct rte_rib_conf
Enumerations
enum { RTE_RIB_GET_NXT_ALL, RTE_RIB_GET_NXT_COVER }
Functions
static uint32_t rte_rib_depth_to_mask (uint8_t depth)
struct rte_rib_node * rte_rib_lookup (struct rte_rib *rib, uint32_t ip)
struct rte_rib_node * rte_rib_lookup_parent (struct rte_rib_node *ent)
struct rte_rib_node * rte_rib_lookup_exact (struct rte_rib *rib, uint32_t ip, uint8_t depth)
struct rte_rib_node * rte_rib_get_nxt (struct rte_rib *rib, uint32_t ip, uint8_t depth, struct
rte_rib_node *last, int flag)
void rte_rib_remove (struct rte_rib *rib, uint32_t ip, uint8_t depth)
struct rte_rib_node * rte_rib_insert (struct rte_rib *rib, uint32_t ip, uint8_t depth)
int rte_rib_get_ip (const struct rte_rib_node *node, uint32_t *ip)
int rte_rib_get_depth (const struct rte_rib_node *node, uint8_t *depth)
void * rte_rib_get_ext (struct rte_rib_node *node)
int rte_rib_get_nh (const struct rte_rib_node *node, uint64_t *nh)
int rte_rib_set_nh (struct rte_rib_node *node, uint64_t nh)
struct rte_rib * rte_rib_create (const char *name, int socket_id, const struct rte_rib_conf *conf)
struct rte_rib * rte_rib_find_existing (const char *name)
void rte_rib_free (struct rte_rib *rib)
Detailed Description
RTE RIB library.
Level compressed tree implementation for IPv4 Longest Prefix Match
Definition in file rte_rib.h.
Enumeration Type Documentation
anonymous enum
rte_rib_get_nxt() flags
Enumerator
RTE_RIB_GET_NXT_ALL
flag to get all subroutes in a RIB tree
RTE_RIB_GET_NXT_COVER
flag to get first matched subroutes in a RIB tree
Definition at line 28 of file rte_rib.h.
Function Documentation
static uint32_t rte_rib_depth_to_mask (uint8_t depth) [inline], [static]
Get an IPv4 mask from prefix length It is caller responsibility to make sure depth is not bigger than 32
Parameters
depth prefix length
Returns
IPv4 mask
Definition at line 60 of file rte_rib.h.
struct rte_rib_node * rte_rib_lookup (struct rte_rib * rib, uint32_t ip)
Lookup an IP into the RIB structure
Parameters
rib RIB object handle
ip IP to be looked up in the RIB
Returns
pointer to struct rte_rib_node on success NULL otherwise
struct rte_rib_node * rte_rib_lookup_parent (struct rte_rib_node * ent)
Lookup less specific route into the RIB structure
Parameters
ent Pointer to struct rte_rib_node that represents target route
Returns
pointer to struct rte_rib_node that represents less specific route on success NULL otherwise
struct rte_rib_node * rte_rib_lookup_exact (struct rte_rib * rib, uint32_t ip, uint8_t depth)
Lookup prefix into the RIB structure
Parameters
rib RIB object handle
ip net to be looked up in the RIB
depth prefix length
Returns
pointer to struct rte_rib_node on success NULL otherwise
struct rte_rib_node * rte_rib_get_nxt (struct rte_rib * rib, uint32_t ip, uint8_t depth, struct rte_rib_node
* last, int flag)
Retrieve next more specific prefix from the RIB that is covered by ip/depth supernet in an ascending
order
Parameters
rib RIB object handle
ip net address of supernet prefix that covers returned more specific prefixes
depth supernet prefix length
last pointer to the last returned prefix to get next prefix or NULL to get first more specific prefix
flag -RTE_RIB_GET_NXT_ALL get all prefixes from subtrie -RTE_RIB_GET_NXT_COVER get only first more
specific prefix even if it have more specifics
Returns
pointer to the next more specific prefix NULL if there is no prefixes left
void rte_rib_remove (struct rte_rib * rib, uint32_t ip, uint8_t depth)
Remove prefix from the RIB
Parameters
rib RIB object handle
ip net to be removed from the RIB
depth prefix length
struct rte_rib_node * rte_rib_insert (struct rte_rib * rib, uint32_t ip, uint8_t depth)
Insert prefix into the RIB
Parameters
rib RIB object handle
ip net to be inserted to the RIB
depth prefix length
Returns
pointer to new rte_rib_node on success NULL otherwise
int rte_rib_get_ip (const struct rte_rib_node * node, uint32_t * ip)
Get an ip from rte_rib_node
Parameters
node pointer to the rib node
ip pointer to the ip to save
Returns
0 on success. -1 on failure with rte_errno indicating reason for failure.
int rte_rib_get_depth (const struct rte_rib_node * node, uint8_t * depth)
Get a depth from rte_rib_node
Parameters
node pointer to the rib node
depth pointer to the depth to save
Returns
0 on success. -1 on failure with rte_errno indicating reason for failure.
void * rte_rib_get_ext (struct rte_rib_node * node)
Get ext field from the rib node It is caller responsibility to make sure there are necessary space for
the ext field inside rib node.
Parameters
node pointer to the rib node
Returns
pointer to the ext
int rte_rib_get_nh (const struct rte_rib_node * node, uint64_t * nh)
Get nexthop from the rib node
Parameters
node pointer to the rib node
nh pointer to the nexthop to save
Returns
0 on success. -1 on failure with rte_errno indicating reason for failure.
int rte_rib_set_nh (struct rte_rib_node * node, uint64_t nh)
Set nexthop into the rib node
Parameters
node pointer to the rib node
nh nexthop value to set to the rib node
Returns
0 on success. -1 on failure with rte_errno indicating reason for failure.
struct rte_rib * rte_rib_create (const char * name, int socket_id, const struct rte_rib_conf * conf)
Create RIB
Parameters
name RIB name
socket_id NUMA socket ID for RIB table memory allocation
conf Structure containing the configuration
Returns
Handle to RIB object on success NULL otherwise with rte_errno indicating reason for failure.
struct rte_rib * rte_rib_find_existing (const char * name)
Find an existing RIB object and return a pointer to it.
Parameters
name Name of the rib object as passed to rte_rib_create()
Returns
Pointer to RIB object on success NULL otherwise with rte_errno indicating reason for failure.
void rte_rib_free (struct rte_rib * rib)
Free an RIB object.
Parameters
rib RIB object handle created with rte_rib_create(). If rib is NULL, no operation is performed.
Author
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DPDK Version 24.11.3 rte_rib.h(3)