/*
 * Copyright (c) 2017 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

#ifndef SRC_VNET_SESSION_MMA_TEMPLATE_H_
#define SRC_VNET_SESSION_MMA_TEMPLATE_H_

#include <vppinfra/pool.h>

#ifndef MMA_RT_TYPE
#error MMA_RT_TYPE not defined
#endif

#define _rt(a,b) a##_##b
#define __rt(a, b) _rt(a,b)
#define RT(a) __rt(a, MMA_RT_TYPE)

#define _rtt(a,b) a##_##b##_t
#define __rtt(a, b) _rtt(a,b)
#define RTT(a) __rtt(a, MMA_RT_TYPE)

#define MMA_TABLE_INVALID_INDEX ((u32)~0)

typedef struct
{
  u64 as_u64[MMA_RT_TYPE / 8];
} RTT (mma_mask_or_match);

typedef struct
{
  u32 action_index;
  u32 *next_indices;
  /* *INDENT-OFF* */
  RTT (mma_mask_or_match) mask;
  RTT (mma_mask_or_match) match;
  RTT (mma_mask_or_match) max_match;
  /* *INDENT-ON* */
} RTT (mma_rule);

typedef int (*RTT (rule_cmp_fn)) (RTT (mma_rule) * rule1,
				  RTT (mma_rule) * rule2);
typedef struct
{
  /** Root for rules tree */
  u32 root_index;

  /** Rules pool */
    RTT (mma_rule) * rules;

    RTT (rule_cmp_fn) rule_cmp_fn;
} RTT (mma_rules_table);

u32
RT (mma_table_lookup) (RTT (mma_rules_table) * srt,
		       RTT (mma_mask_or_match) * key, u32 rule_index);
u32
RT (mma_table_lookup_rule) (RTT (mma_rules_table) * srt,
			    RTT (mma_mask_or_match) * key, u32 rule_index);
int
RT (mma_table_add_rule) (RTT (mma_rules_table) * srt, RTT (mma_rule) * rule);
int
RT (mma_table_del_rule) (RTT (mma_rules_table) * srt,
			 RTT (mma_rule) * rule, u32 rule_index);
RTT (mma_rule) *
RT (mma_rules_table_rule_alloc) (RTT (mma_rules_table) * srt);
RTT (mma_rule) *
RT (session_rule_free) (RTT (mma_rules_table) * srt, RTT (mma_rule) * rule);
RTT (mma_rule) *
RT (mma_table_get_rule) (RTT (mma_rules_table) * srt, u32 srt_index);
u32
RT (mma_rules_table_rule_index) (RTT (mma_rules_table) * srt,
				 RTT (mma_rule) * sr);
#endif /* SRC_VNET_SESSION_MMA_TEMPLATE_H_ */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */