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rte_table_action.h(3) DPDK rte_table_action.h(3)

NAME

rte_table_action.h

SYNOPSIS

#include <stdint.h>
#include <rte_compat.h>
#include <rte_ether.h>
#include <rte_meter.h>
#include <rte_table_hash.h>
#include 'rte_pipeline.h'

Data Structures


struct rte_table_action_common_config
struct rte_table_action_fwd_params
struct rte_table_action_lb_config
struct rte_table_action_lb_params
struct rte_table_action_dscp_table_entry
struct rte_table_action_dscp_table
struct rte_table_action_meter_profile
struct rte_table_action_mtr_tc_params
struct rte_table_action_mtr_counters_tc
struct rte_table_action_mtr_config
struct rte_table_action_mtr_params
struct rte_table_action_mtr_counters
struct rte_table_action_tm_config
struct rte_table_action_tm_params
struct rte_table_action_ether_hdr
struct rte_table_action_vlan_hdr
struct rte_table_action_mpls_hdr
struct rte_table_action_pppoe_hdr
struct rte_table_action_ipv4_header
struct rte_table_action_ipv6_header
struct rte_table_action_udp_header
struct rte_table_action_vxlan_hdr
struct rte_table_action_encap_ether_params
struct rte_table_action_encap_vlan_params
struct rte_table_action_encap_qinq_params
struct rte_table_action_encap_mpls_params
struct rte_table_action_encap_pppoe_params
struct rte_table_action_encap_vxlan_params
struct rte_table_action_encap_config
struct rte_table_encap_ether_qinq_pppoe
struct rte_table_action_encap_params
struct rte_table_action_nat_config
struct rte_table_action_nat_params
struct rte_table_action_ttl_config
struct rte_table_action_ttl_params
struct rte_table_action_ttl_counters
struct rte_table_action_stats_config
struct rte_table_action_stats_params
struct rte_table_action_stats_counters
struct rte_table_action_time_params
struct rte_table_action_vlo
struct rte_table_action_sym_crypto_config
struct rte_table_action_sym_crypto_params
struct rte_table_action_tag_params
struct rte_table_action_decap_params

Macros


#define RTE_TABLE_ACTION_LB_KEY_SIZE_MIN 8
#define RTE_TABLE_ACTION_LB_KEY_SIZE_MAX 64
#define RTE_TABLE_ACTION_LB_TABLE_SIZE 8
#define RTE_TABLE_ACTION_TC_MAX 16
#define RTE_TABLE_ACTION_TC_QUEUE_MAX 16
#define RTE_TABLE_ACTION_MPLS_LABELS_MAX 4
#define RTE_TABLE_ACTION_SYM_CRYPTO_IV_SIZE_MAX (16)

Enumerations


enum rte_table_action_type { RTE_TABLE_ACTION_FWD = 0, RTE_TABLE_ACTION_LB, RTE_TABLE_ACTION_MTR, RTE_TABLE_ACTION_TM, RTE_TABLE_ACTION_ENCAP, RTE_TABLE_ACTION_NAT, RTE_TABLE_ACTION_TTL, RTE_TABLE_ACTION_STATS, RTE_TABLE_ACTION_TIME, RTE_TABLE_ACTION_SYM_CRYPTO, RTE_TABLE_ACTION_TAG, RTE_TABLE_ACTION_DECAP }
enum rte_table_action_meter_algorithm { RTE_TABLE_ACTION_METER_SRTCM, RTE_TABLE_ACTION_METER_TRTCM }
enum rte_table_action_policer { RTE_TABLE_ACTION_POLICER_COLOR_GREEN = 0, RTE_TABLE_ACTION_POLICER_COLOR_YELLOW, RTE_TABLE_ACTION_POLICER_COLOR_RED, RTE_TABLE_ACTION_POLICER_DROP, RTE_TABLE_ACTION_POLICER_MAX }
enum rte_table_action_encap_type { RTE_TABLE_ACTION_ENCAP_ETHER = 0, RTE_TABLE_ACTION_ENCAP_VLAN, RTE_TABLE_ACTION_ENCAP_QINQ, RTE_TABLE_ACTION_ENCAP_MPLS, RTE_TABLE_ACTION_ENCAP_PPPOE, RTE_TABLE_ACTION_ENCAP_VXLAN, RTE_TABLE_ACTION_ENCAP_QINQ_PPPOE }

Functions


__rte_experimental struct rte_table_action_profile * rte_table_action_profile_create (struct rte_table_action_common_config *common)
__rte_experimental int rte_table_action_profile_free (struct rte_table_action_profile *profile)
__rte_experimental int rte_table_action_profile_action_register (struct rte_table_action_profile *profile, enum rte_table_action_type type, void *action_config)
__rte_experimental int rte_table_action_profile_freeze (struct rte_table_action_profile *profile)
__rte_experimental struct rte_table_action * rte_table_action_create (struct rte_table_action_profile *profile, uint32_t socket_id)
__rte_experimental int rte_table_action_free (struct rte_table_action *action)
__rte_experimental int rte_table_action_table_params_get (struct rte_table_action *action, struct rte_pipeline_table_params *params)
__rte_experimental int rte_table_action_apply (struct rte_table_action *action, void *data, enum rte_table_action_type type, void *action_params)
__rte_experimental int rte_table_action_dscp_table_update (struct rte_table_action *action, uint64_t dscp_mask, struct rte_table_action_dscp_table *table)
__rte_experimental int rte_table_action_meter_profile_add (struct rte_table_action *action, uint32_t meter_profile_id, struct rte_table_action_meter_profile *profile)
__rte_experimental int rte_table_action_meter_profile_delete (struct rte_table_action *action, uint32_t meter_profile_id)
__rte_experimental int rte_table_action_meter_read (struct rte_table_action *action, void *data, uint32_t tc_mask, struct rte_table_action_mtr_counters *stats, int clear)
__rte_experimental int rte_table_action_ttl_read (struct rte_table_action *action, void *data, struct rte_table_action_ttl_counters *stats, int clear)
__rte_experimental int rte_table_action_stats_read (struct rte_table_action *action, void *data, struct rte_table_action_stats_counters *stats, int clear)
__rte_experimental int rte_table_action_time_read (struct rte_table_action *action, void *data, uint64_t *timestamp)
__rte_experimental struct rte_cryptodev_sym_session * rte_table_action_crypto_sym_session_get (struct rte_table_action *action, void *data)

Detailed Description

RTE Pipeline Table Actions

This API provides a common set of actions for pipeline tables to speed up application development.

Each match-action rule added to a pipeline table has associated data that stores the action context. This data is input to the table action handler called for every input packet that hits the rule as part of the table lookup during the pipeline execution. The pipeline library allows the user to define his own table actions by providing customized table action handlers (table lookup) and complete freedom of setting the rules and their data (table rule add/delete). While the user can still follow this process, this API is intended to provide a quicker development alternative for a set of predefined actions.

The typical steps to use this API are:

  • Define a table action profile. This is a configuration template that can potentially be shared by multiple tables from the same or different pipelines, with different tables from the same pipeline likely to use different action profiles. For every table using a given action profile, the profile defines the set of actions and the action configuration to be implemented for all the table rules. API functions: rte_table_action_profile_create(), rte_table_action_profile_action_register(), rte_table_action_profile_freeze().
  • Instantiate the table action profile to create table action objects. Each pipeline table has its own table action object. API functions: rte_table_action_create().
  • Use the table action object to generate the pipeline table action handlers (invoked by the pipeline table lookup operation). API functions: rte_table_action_table_params_get().
  • Use the table action object to generate the rule data (for the pipeline table rule add operation) based on given action parameters. API functions: rte_table_action_apply().
  • Use the table action object to read action data (e.g. stats counters) for any given rule. API functions: rte_table_action_XYZ_read().

Warning

EXPERIMENTAL: this API may change without prior notice

Definition in file rte_table_action.h.

Macro Definition Documentation

#define RTE_TABLE_ACTION_LB_KEY_SIZE_MIN 8

RTE_TABLE_ACTION_LB Load balance key size min (number of bytes).

Definition at line 136 of file rte_table_action.h.

#define RTE_TABLE_ACTION_LB_KEY_SIZE_MAX 64

Load balance key size max (number of bytes).

Definition at line 139 of file rte_table_action.h.

#define RTE_TABLE_ACTION_LB_TABLE_SIZE 8

Load balance table size.

Definition at line 142 of file rte_table_action.h.

#define RTE_TABLE_ACTION_TC_MAX 16

RTE_TABLE_ACTION_MTR Max number of traffic classes (TCs).

Definition at line 184 of file rte_table_action.h.

#define RTE_TABLE_ACTION_TC_QUEUE_MAX 16

Max number of queues per traffic class.

Definition at line 187 of file rte_table_action.h.

#define RTE_TABLE_ACTION_MPLS_LABELS_MAX 4

Max number of MPLS labels per output packet for MPLS encapsulation.

Definition at line 460 of file rte_table_action.h.

#define RTE_TABLE_ACTION_SYM_CRYPTO_IV_SIZE_MAX (16)

RTE_TABLE_ACTION_CRYPTO

Definition at line 708 of file rte_table_action.h.

Enumeration Type Documentation

enum rte_table_action_type

Table actions.

Enumerator

Forward to next pipeline table, output port or drop.
Load balance.
Traffic Metering and Policing.
Traffic Management.
Packet encapsulations.
Network Address Translation (NAT).
Time to Live (TTL) update.
Statistics.
Timestamp.
Crypto.
Tag.
Packet decapsulations.

Definition at line 69 of file rte_table_action.h.

enum rte_table_action_meter_algorithm

Supported traffic metering algorithms.

Enumerator

Single Rate Three Color Marker (srTCM) - IETF RFC 2697.
Two Rate Three Color Marker (trTCM) - IETF RFC 2698.

Definition at line 215 of file rte_table_action.h.

enum rte_table_action_policer

Policer actions.

Enumerator

Recolor the packet as green.
Recolor the packet as yellow.
Recolor the packet as red.
Drop the packet.
Number of policer actions.

Definition at line 238 of file rte_table_action.h.

enum rte_table_action_encap_type

RTE_TABLE_ACTION_ENCAP Supported packet encapsulation types.

Enumerator

IP -> { Ether | IP }
IP -> { Ether | VLAN | IP }
IP -> { Ether | S-VLAN | C-VLAN | IP }
IP -> { Ether | MPLS | IP }
IP -> { Ether | PPPoE | PPP | IP }
Ether -> { Ether | IP | UDP | VXLAN | Ether } Ether -> { Ether | VLAN | IP | UDP | VXLAN | Ether }
IP -> { Ether | S-VLAN | C-VLAN | PPPoE | PPP | IP }

Definition at line 362 of file rte_table_action.h.

Function Documentation

__rte_experimental struct rte_table_action_profile* rte_table_action_profile_create (struct rte_table_action_common_config * common)

Table action profile create.

Parameters

common Common action configuration.

Returns

Table action profile handle on success, NULL otherwise.

__rte_experimental int rte_table_action_profile_free (struct rte_table_action_profile * profile)

Table action profile free.

Parameters

profile Table profile action handle (needs to be valid).

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_profile_action_register (struct rte_table_action_profile * profile, enum rte_table_action_type type, void * action_config)

Table action profile action register.

Parameters

profile Table profile action handle (needs to be valid and not in frozen state).
type Specific table action to be registered for profile.
action_config Configuration for the type action. If struct rte_table_action_*type*_config is defined by the Table Action API, it needs to point to a valid instance of this structure, otherwise it needs to be set to NULL.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_profile_freeze (struct rte_table_action_profile * profile)

Table action profile freeze.

Once this function is called successfully, the given profile enters the frozen state with the following immediate effects: no more actions can be registered for this profile, so the profile can be instantiated to create table action objects.

Parameters

profile Table profile action handle (needs to be valid and not in frozen state).

Returns

Zero on success, non-zero error code otherwise.

See also

rte_table_action_create()

__rte_experimental struct rte_table_action* rte_table_action_create (struct rte_table_action_profile * profile, uint32_t socket_id)

Table action create.

Instantiates the given table action profile to create a table action object.

Parameters

profile Table profile action handle (needs to be valid and in frozen state).
socket_id CPU socket ID where the internal data structures required by the new table action object should be allocated.

Returns

Handle to table action object on success, NULL on error.

See also

rte_table_action_create()

__rte_experimental int rte_table_action_free (struct rte_table_action * action)

Table action free.

Parameters

action Handle to table action object (needs to be valid).

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_table_params_get (struct rte_table_action * action, struct rte_pipeline_table_params * params)

Table action table params get.

Parameters

action Handle to table action object (needs to be valid).
params Pipeline table parameters (needs to be pre-allocated).

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_apply (struct rte_table_action * action, void * data, enum rte_table_action_type type, void * action_params)

Table action apply.

Parameters

action Handle to table action object (needs to be valid).
data Data byte array (typically table rule data) to apply action type on.
type Specific table action previously registered for the table action profile of the action object.
action_params Parameters for the type action. If struct rte_table_action_*type*_params is defined by the Table Action API, it needs to point to a valid instance of this structure, otherwise it needs to be set to NULL.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_dscp_table_update (struct rte_table_action * action, uint64_t dscp_mask, struct rte_table_action_dscp_table * table)

Table action DSCP table update.

Parameters

action Handle to table action object (needs to be valid).
dscp_mask 64-bit mask defining the DSCP table entries to be updated. If bit N is set in this bit mask, then DSCP table entry N is to be updated, otherwise not.
table DSCP table.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_meter_profile_add (struct rte_table_action * action, uint32_t meter_profile_id, struct rte_table_action_meter_profile * profile)

Table action meter profile add.

Parameters

action Handle to table action object (needs to be valid).
meter_profile_id Meter profile ID to be used for the profile once it is successfully added to the action object (needs to be unused by the set of meter profiles currently registered for the action object).
profile Meter profile to be added.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_meter_profile_delete (struct rte_table_action * action, uint32_t meter_profile_id)

Table action meter profile delete.

Parameters

action Handle to table action object (needs to be valid).
meter_profile_id Meter profile ID of the meter profile to be deleted from the action object (needs to be valid for the action object).

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_meter_read (struct rte_table_action * action, void * data, uint32_t tc_mask, struct rte_table_action_mtr_counters * stats, int clear)

Table action meter read.

Parameters

action Handle to table action object (needs to be valid).
data Data byte array (typically table rule data) with meter action previously applied on it.
tc_mask Bit mask defining which traffic classes should have the meter stats counters read from data and stored into stats. If bit N is set in this bit mask, then traffic class N is part of this operation, otherwise it is not. If bit N is set in this bit mask, then traffic class N must be one of the traffic classes that are enabled for the meter action in the table action profile used by the action object.
stats When non-NULL, it points to the area where the meter stats counters read from data are saved. Only the meter stats counters for the tc_mask traffic classes are read and stored to stats.
clear When non-zero, the meter stats counters are cleared (i.e. set to zero), otherwise the counters are not modified. When the read operation is enabled (stats is non-NULL), the clear operation is performed after the read operation is completed.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_ttl_read (struct rte_table_action * action, void * data, struct rte_table_action_ttl_counters * stats, int clear)

Table action TTL read.

Parameters

action Handle to table action object (needs to be valid).
data Data byte array (typically table rule data) with TTL action previously applied on it.
stats When non-NULL, it points to the area where the TTL stats counters read from data are saved.
clear When non-zero, the TTL stats counters are cleared (i.e. set to zero), otherwise the counters are not modified. When the read operation is enabled (stats is non-NULL), the clear operation is performed after the read operation is completed.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_stats_read (struct rte_table_action * action, void * data, struct rte_table_action_stats_counters * stats, int clear)

Table action stats read.

Parameters

action Handle to table action object (needs to be valid).
data Data byte array (typically table rule data) with stats action previously applied on it.
stats When non-NULL, it points to the area where the stats counters read from data are saved.
clear When non-zero, the stats counters are cleared (i.e. set to zero), otherwise the counters are not modified. When the read operation is enabled (stats is non-NULL), the clear operation is performed after the read operation is completed.

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental int rte_table_action_time_read (struct rte_table_action * action, void * data, uint64_t * timestamp)

Table action timestamp read.

Parameters

action Handle to table action object (needs to be valid).
data Data byte array (typically table rule data) with timestamp action previously applied on it.
timestamp Pre-allocated memory where the timestamp read from data is saved (has to be non-NULL).

Returns

Zero on success, non-zero error code otherwise.

__rte_experimental struct rte_cryptodev_sym_session* rte_table_action_crypto_sym_session_get (struct rte_table_action * action, void * data)

Table action cryptodev symmetric session get.

Parameters

action Handle to table action object (needs to be valid).
data Data byte array (typically table rule data) with sym crypto action.

Returns

The pointer to the session on success, NULL otherwise.

Author

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Fri Dec 15 2023 Version 23.11.0