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/*
* drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h
* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved.
* Copyright (c) 2017-2018 Jiri Pirko <jiri@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MLXSW_SPECTRUM_ACL_TCAM_H
#define _MLXSW_SPECTRUM_ACL_TCAM_H
#include <linux/list.h>
#include <linux/parman.h>
#include "reg.h"
#include "spectrum.h"
#include "core_acl_flex_keys.h"
struct mlxsw_sp_acl_tcam {
unsigned long *used_regions; /* bit array */
unsigned int max_regions;
unsigned long *used_groups; /* bit array */
unsigned int max_groups;
unsigned int max_group_size;
unsigned long priv[0];
/* priv has to be always the last item */
};
size_t mlxsw_sp_acl_tcam_priv_size(struct mlxsw_sp *mlxsw_sp);
int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam *tcam);
void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam *tcam);
int mlxsw_sp_acl_tcam_priority_get(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_rule_info *rulei,
u32 *priority, bool fillup_priority);
struct mlxsw_sp_acl_profile_ops {
size_t ruleset_priv_size;
int (*ruleset_add)(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam *tcam, void *ruleset_priv,
struct mlxsw_afk_element_usage *tmplt_elusage);
void (*ruleset_del)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv);
int (*ruleset_bind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
struct mlxsw_sp_port *mlxsw_sp_port,
bool ingress);
void (*ruleset_unbind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
struct mlxsw_sp_port *mlxsw_sp_port,
bool ingress);
u16 (*ruleset_group_id)(void *ruleset_priv);
size_t (*rule_priv_size)(struct mlxsw_sp *mlxsw_sp);
int (*rule_add)(struct mlxsw_sp *mlxsw_sp,
void *ruleset_priv, void *rule_priv,
struct mlxsw_sp_acl_rule_info *rulei);
void (*rule_del)(struct mlxsw_sp *mlxsw_sp, void *rule_priv);
int (*rule_activity_get)(struct mlxsw_sp *mlxsw_sp, void *rule_priv,
bool *activity);
};
const struct mlxsw_sp_acl_profile_ops *
mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp,
enum mlxsw_sp_acl_profile profile);
#define MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT 16
#define MLXSW_SP_ACL_TCAM_REGION_RESIZE_STEP 16
#define MLXSW_SP_ACL_TCAM_CATCHALL_PRIO (~0U)
struct mlxsw_sp_acl_tcam_group;
struct mlxsw_sp_acl_tcam_region {
struct list_head list; /* Member of a TCAM group */
struct list_head chunk_list; /* List of chunks under this region */
struct mlxsw_sp_acl_tcam_group *group;
enum mlxsw_reg_ptar_key_type key_type;
u16 id; /* ACL ID and region ID - they are same */
char tcam_region_info[MLXSW_REG_PXXX_TCAM_REGION_INFO_LEN];
struct mlxsw_afk_key_info *key_info;
struct mlxsw_sp *mlxsw_sp;
unsigned long priv[0];
/* priv has to be always the last item */
};
struct mlxsw_sp_acl_ctcam_region {
struct parman *parman;
struct mlxsw_sp_acl_tcam_region *region;
};
struct mlxsw_sp_acl_ctcam_chunk {
struct parman_prio parman_prio;
};
struct mlxsw_sp_acl_ctcam_entry {
struct parman_item parman_item;
};
int mlxsw_sp_acl_ctcam_region_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_ctcam_region *cregion,
struct mlxsw_sp_acl_tcam_region *region);
void mlxsw_sp_acl_ctcam_region_fini(struct mlxsw_sp_acl_ctcam_region *cregion);
void mlxsw_sp_acl_ctcam_chunk_init(struct mlxsw_sp_acl_ctcam_region *cregion,
struct mlxsw_sp_acl_ctcam_chunk *cchunk,
unsigned int priority);
void mlxsw_sp_acl_ctcam_chunk_fini(struct mlxsw_sp_acl_ctcam_chunk *cchunk);
int mlxsw_sp_acl_ctcam_entry_add(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_ctcam_region *cregion,
struct mlxsw_sp_acl_ctcam_chunk *cchunk,
struct mlxsw_sp_acl_ctcam_entry *centry,
struct mlxsw_sp_acl_rule_info *rulei,
bool fillup_priority);
void mlxsw_sp_acl_ctcam_entry_del(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_ctcam_region *cregion,
struct mlxsw_sp_acl_ctcam_chunk *cchunk,
struct mlxsw_sp_acl_ctcam_entry *centry);
static inline unsigned int
mlxsw_sp_acl_ctcam_entry_offset(struct mlxsw_sp_acl_ctcam_entry *centry)
{
return centry->parman_item.index;
}
int mlxsw_sp_acl_atcam_region_associate(struct mlxsw_sp *mlxsw_sp,
u16 region_id);
int mlxsw_sp_acl_atcam_region_init(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_region *region);
#endif
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