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/*
* SPDX-License-Identifier: Apache-2.0
* Copyright(c) 2021 Cisco Systems, Inc.
*/
#ifndef __VNET_HASH_H__
#define __VNET_HASH_H__
#include <vlib/vlib.h>
#define foreach_vnet_hash_fn_types \
_ (ETHERNET, 0, "hash-fn-ethernet") \
_ (IP, 1, "hash-fn-ip")
typedef enum
{
#define _(f, n, s) VNET_HASH_FN_TYPE_##f,
foreach_vnet_hash_fn_types
#undef _
VNET_HASH_FN_TYPE_N,
} vnet_hash_fn_type_t;
typedef void (*vnet_hash_fn_t) (void **p, u32 *h, u32 n_packets);
typedef struct vnet_hash_function_registration
{
const char *name;
const char *description;
int priority;
vnet_hash_fn_t function[VNET_HASH_FN_TYPE_N];
struct vnet_hash_function_registration *next;
} vnet_hash_function_registration_t;
typedef struct
{
vnet_hash_function_registration_t *hash_registrations;
} vnet_hash_main_t;
extern vnet_hash_main_t vnet_hash_main;
#define VNET_REGISTER_HASH_FUNCTION(x, ...) \
__VA_ARGS__ vnet_hash_function_registration_t __vnet_hash_function_##x; \
static void __clib_constructor __vnet_hash_function_registration_##x (void) \
{ \
vnet_hash_main_t *hm = &vnet_hash_main; \
__vnet_hash_function_##x.next = hm->hash_registrations; \
hm->hash_registrations = &__vnet_hash_function_##x; \
} \
__VA_ARGS__ vnet_hash_function_registration_t __vnet_hash_function_##x
vnet_hash_fn_t vnet_hash_default_function (vnet_hash_fn_type_t ftype);
vnet_hash_fn_t vnet_hash_function_from_name (const char *name,
vnet_hash_fn_type_t ftype);
vnet_hash_function_registration_t *
vnet_hash_function_from_func (vnet_hash_fn_t fn, vnet_hash_fn_type_t ftype);
format_function_t format_vnet_hash;
#endif
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