rte_swx_table.h

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/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2020 Intel Corporation
 */
#ifndef __INCLUDE_RTE_SWX_TABLE_H__
#define __INCLUDE_RTE_SWX_TABLE_H__

#include <stdint.h>

#include <rte_os.h>

#include "rte_swx_hash_func.h"

enum rte_swx_table_match_type {
    RTE_SWX_TABLE_MATCH_WILDCARD,

    RTE_SWX_TABLE_MATCH_LPM,

    RTE_SWX_TABLE_MATCH_EXACT,
};

struct rte_swx_table_params {
    enum rte_swx_table_match_type match_type;

    uint32_t key_size;

    uint32_t key_offset;

    uint8_t *key_mask0;

    uint32_t action_data_size;

    rte_swx_hash_func_t hash_func;

    uint32_t n_keys_max;
};

struct rte_swx_table_entry {
    RTE_TAILQ_ENTRY(rte_swx_table_entry) node;

    uint8_t *key;

    uint8_t *key_mask;

    uint64_t key_signature;

    uint32_t key_priority;

    uint64_t action_id;

    uint8_t *action_data;
};

RTE_TAILQ_HEAD(rte_swx_table_entry_list, rte_swx_table_entry);

typedef uint64_t
(*rte_swx_table_footprint_get_t)(struct rte_swx_table_params *params,
                 struct rte_swx_table_entry_list *entries,
                 const char *args);

typedef uint64_t
(*rte_swx_table_mailbox_size_get_t)(void);

typedef void *
(*rte_swx_table_create_t)(struct rte_swx_table_params *params,
              struct rte_swx_table_entry_list *entries,
              const char *args,
              int numa_node);

typedef int
(*rte_swx_table_add_t)(void *table,
               struct rte_swx_table_entry *entry);

typedef int
(*rte_swx_table_delete_t)(void *table,
              struct rte_swx_table_entry *entry);

typedef int
(*rte_swx_table_lookup_t)(void *table,
              void *mailbox,
              uint8_t **key,
              uint64_t *action_id,
              uint8_t **action_data,
              size_t *entry_id,
              int *hit);

typedef void
(*rte_swx_table_free_t)(void *table);

struct rte_swx_table_ops {
    rte_swx_table_footprint_get_t footprint_get;

    rte_swx_table_mailbox_size_get_t mailbox_size_get;

    rte_swx_table_create_t create;

    rte_swx_table_add_t add;

    rte_swx_table_delete_t del;

    rte_swx_table_lookup_t lkp;

    rte_swx_table_free_t free;
};

#endif