/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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/* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */
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#ifndef _MLXSW_SPECTRUM_ACL_TCAM_H
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#define _MLXSW_SPECTRUM_ACL_TCAM_H
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#include <linux/list.h>
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#include <linux/parman.h>
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#include "reg.h"
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#include "spectrum.h"
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#include "core_acl_flex_keys.h"
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struct mlxsw_sp_acl_tcam {
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unsigned long *used_regions; /* bit array */
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unsigned int max_regions;
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unsigned long *used_groups; /* bit array */
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unsigned int max_groups;
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unsigned int max_group_size;
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struct mutex lock; /* guards vregion list */
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struct list_head vregion_list;
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u32 vregion_rehash_intrvl; /* ms */
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unsigned long priv[];
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/* priv has to be always the last item */
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};
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size_t mlxsw_sp_acl_tcam_priv_size(struct mlxsw_sp *mlxsw_sp);
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int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_tcam *tcam);
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void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_tcam *tcam);
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u32 mlxsw_sp_acl_tcam_vregion_rehash_intrvl_get(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_tcam *tcam);
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int mlxsw_sp_acl_tcam_vregion_rehash_intrvl_set(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_tcam *tcam,
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u32 val);
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int mlxsw_sp_acl_tcam_priority_get(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_rule_info *rulei,
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u32 *priority, bool fillup_priority);
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struct mlxsw_sp_acl_profile_ops {
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size_t ruleset_priv_size;
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int (*ruleset_add)(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_tcam *tcam, void *ruleset_priv,
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struct mlxsw_afk_element_usage *tmplt_elusage,
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unsigned int *p_min_prio, unsigned int *p_max_prio);
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void (*ruleset_del)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv);
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int (*ruleset_bind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
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struct mlxsw_sp_port *mlxsw_sp_port,
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bool ingress);
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void (*ruleset_unbind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
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struct mlxsw_sp_port *mlxsw_sp_port,
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bool ingress);
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u16 (*ruleset_group_id)(void *ruleset_priv);
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size_t rule_priv_size;
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int (*rule_add)(struct mlxsw_sp *mlxsw_sp,
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void *ruleset_priv, void *rule_priv,
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struct mlxsw_sp_acl_rule_info *rulei);
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void (*rule_del)(struct mlxsw_sp *mlxsw_sp, void *rule_priv);
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int (*rule_action_replace)(struct mlxsw_sp *mlxsw_sp, void *rule_priv,
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struct mlxsw_sp_acl_rule_info *rulei);
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int (*rule_activity_get)(struct mlxsw_sp *mlxsw_sp, void *rule_priv,
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bool *activity);
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};
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const struct mlxsw_sp_acl_profile_ops *
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mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp,
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enum mlxsw_sp_acl_profile profile);
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#define MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT 16
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#define MLXSW_SP_ACL_TCAM_REGION_RESIZE_STEP 16
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#define MLXSW_SP_ACL_TCAM_CATCHALL_PRIO (~0U)
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#define MLXSW_SP_ACL_TCAM_MASK_LEN \
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(MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN * BITS_PER_BYTE)
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struct mlxsw_sp_acl_tcam_group;
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struct mlxsw_sp_acl_tcam_vregion;
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struct mlxsw_sp_acl_tcam_region {
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struct mlxsw_sp_acl_tcam_vregion *vregion;
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struct mlxsw_sp_acl_tcam_group *group;
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struct list_head list; /* Member of a TCAM group */
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enum mlxsw_reg_ptar_key_type key_type;
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u16 id; /* ACL ID and region ID - they are same */
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char tcam_region_info[MLXSW_REG_PXXX_TCAM_REGION_INFO_LEN];
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struct mlxsw_afk_key_info *key_info;
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struct mlxsw_sp *mlxsw_sp;
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unsigned long priv[];
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/* priv has to be always the last item */
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};
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struct mlxsw_sp_acl_ctcam_region {
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struct parman *parman;
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const struct mlxsw_sp_acl_ctcam_region_ops *ops;
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struct mlxsw_sp_acl_tcam_region *region;
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};
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struct mlxsw_sp_acl_ctcam_chunk {
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struct parman_prio parman_prio;
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};
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struct mlxsw_sp_acl_ctcam_entry {
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struct parman_item parman_item;
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};
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struct mlxsw_sp_acl_ctcam_region_ops {
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int (*entry_insert)(struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_ctcam_entry *centry,
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const char *mask);
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void (*entry_remove)(struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_ctcam_entry *centry);
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};
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int
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mlxsw_sp_acl_ctcam_region_init(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_tcam_region *region,
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const struct mlxsw_sp_acl_ctcam_region_ops *ops);
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void mlxsw_sp_acl_ctcam_region_fini(struct mlxsw_sp_acl_ctcam_region *cregion);
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void mlxsw_sp_acl_ctcam_chunk_init(struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_ctcam_chunk *cchunk,
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unsigned int priority);
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void mlxsw_sp_acl_ctcam_chunk_fini(struct mlxsw_sp_acl_ctcam_chunk *cchunk);
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int mlxsw_sp_acl_ctcam_entry_add(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_ctcam_chunk *cchunk,
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struct mlxsw_sp_acl_ctcam_entry *centry,
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struct mlxsw_sp_acl_rule_info *rulei,
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bool fillup_priority);
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void mlxsw_sp_acl_ctcam_entry_del(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_ctcam_chunk *cchunk,
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struct mlxsw_sp_acl_ctcam_entry *centry);
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int mlxsw_sp_acl_ctcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_ctcam_region *cregion,
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struct mlxsw_sp_acl_ctcam_entry *centry,
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struct mlxsw_sp_acl_rule_info *rulei);
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static inline unsigned int
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mlxsw_sp_acl_ctcam_entry_offset(struct mlxsw_sp_acl_ctcam_entry *centry)
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{
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return centry->parman_item.index;
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}
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enum mlxsw_sp_acl_atcam_region_type {
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MLXSW_SP_ACL_ATCAM_REGION_TYPE_2KB,
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MLXSW_SP_ACL_ATCAM_REGION_TYPE_4KB,
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MLXSW_SP_ACL_ATCAM_REGION_TYPE_8KB,
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MLXSW_SP_ACL_ATCAM_REGION_TYPE_12KB,
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__MLXSW_SP_ACL_ATCAM_REGION_TYPE_MAX,
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};
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#define MLXSW_SP_ACL_ATCAM_REGION_TYPE_MAX \
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(__MLXSW_SP_ACL_ATCAM_REGION_TYPE_MAX - 1)
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struct mlxsw_sp_acl_atcam {
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struct mlxsw_sp_acl_erp_core *erp_core;
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};
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struct mlxsw_sp_acl_atcam_region {
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struct rhashtable entries_ht; /* A-TCAM only */
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struct list_head entries_list; /* A-TCAM only */
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struct mlxsw_sp_acl_ctcam_region cregion;
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const struct mlxsw_sp_acl_atcam_region_ops *ops;
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struct mlxsw_sp_acl_tcam_region *region;
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struct mlxsw_sp_acl_atcam *atcam;
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enum mlxsw_sp_acl_atcam_region_type type;
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struct mlxsw_sp_acl_erp_table *erp_table;
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void *priv;
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};
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struct mlxsw_sp_acl_atcam_entry_ht_key {
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char full_enc_key[MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN]; /* Encoded
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* key.
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*/
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u8 erp_id;
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};
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struct mlxsw_sp_acl_atcam_chunk {
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struct mlxsw_sp_acl_ctcam_chunk cchunk;
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};
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struct mlxsw_sp_acl_atcam_entry {
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struct rhash_head ht_node;
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struct list_head list; /* Member in entries_list */
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struct mlxsw_sp_acl_atcam_entry_ht_key ht_key;
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char enc_key[MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN]; /* Encoded key,
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* minus delta bits.
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*/
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struct {
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u16 start;
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u8 mask;
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u8 value;
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} delta_info;
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struct mlxsw_sp_acl_ctcam_entry centry;
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struct mlxsw_sp_acl_atcam_lkey_id *lkey_id;
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struct mlxsw_sp_acl_erp_mask *erp_mask;
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};
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static inline struct mlxsw_sp_acl_atcam_region *
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mlxsw_sp_acl_tcam_cregion_aregion(struct mlxsw_sp_acl_ctcam_region *cregion)
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{
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return container_of(cregion, struct mlxsw_sp_acl_atcam_region, cregion);
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}
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static inline struct mlxsw_sp_acl_atcam_entry *
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mlxsw_sp_acl_tcam_centry_aentry(struct mlxsw_sp_acl_ctcam_entry *centry)
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{
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return container_of(centry, struct mlxsw_sp_acl_atcam_entry, centry);
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}
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int mlxsw_sp_acl_atcam_region_associate(struct mlxsw_sp *mlxsw_sp,
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u16 region_id);
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int
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mlxsw_sp_acl_atcam_region_init(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam *atcam,
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struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_tcam_region *region,
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void *hints_priv,
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const struct mlxsw_sp_acl_ctcam_region_ops *ops);
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void mlxsw_sp_acl_atcam_region_fini(struct mlxsw_sp_acl_atcam_region *aregion);
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void mlxsw_sp_acl_atcam_chunk_init(struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_atcam_chunk *achunk,
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unsigned int priority);
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void mlxsw_sp_acl_atcam_chunk_fini(struct mlxsw_sp_acl_atcam_chunk *achunk);
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int mlxsw_sp_acl_atcam_entry_add(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_atcam_chunk *achunk,
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struct mlxsw_sp_acl_atcam_entry *aentry,
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struct mlxsw_sp_acl_rule_info *rulei);
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void mlxsw_sp_acl_atcam_entry_del(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_atcam_chunk *achunk,
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struct mlxsw_sp_acl_atcam_entry *aentry);
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int mlxsw_sp_acl_atcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_atcam_entry *aentry,
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struct mlxsw_sp_acl_rule_info *rulei);
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int mlxsw_sp_acl_atcam_init(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam *atcam);
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void mlxsw_sp_acl_atcam_fini(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam *atcam);
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void *
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mlxsw_sp_acl_atcam_rehash_hints_get(struct mlxsw_sp_acl_atcam_region *aregion);
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void mlxsw_sp_acl_atcam_rehash_hints_put(void *hints_priv);
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struct mlxsw_sp_acl_erp_delta;
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u16 mlxsw_sp_acl_erp_delta_start(const struct mlxsw_sp_acl_erp_delta *delta);
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u8 mlxsw_sp_acl_erp_delta_mask(const struct mlxsw_sp_acl_erp_delta *delta);
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u8 mlxsw_sp_acl_erp_delta_value(const struct mlxsw_sp_acl_erp_delta *delta,
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const char *enc_key);
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void mlxsw_sp_acl_erp_delta_clear(const struct mlxsw_sp_acl_erp_delta *delta,
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const char *enc_key);
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struct mlxsw_sp_acl_erp_mask;
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bool
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mlxsw_sp_acl_erp_mask_is_ctcam(const struct mlxsw_sp_acl_erp_mask *erp_mask);
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u8 mlxsw_sp_acl_erp_mask_erp_id(const struct mlxsw_sp_acl_erp_mask *erp_mask);
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const struct mlxsw_sp_acl_erp_delta *
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mlxsw_sp_acl_erp_delta(const struct mlxsw_sp_acl_erp_mask *erp_mask);
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struct mlxsw_sp_acl_erp_mask *
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mlxsw_sp_acl_erp_mask_get(struct mlxsw_sp_acl_atcam_region *aregion,
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const char *mask, bool ctcam);
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void mlxsw_sp_acl_erp_mask_put(struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_erp_mask *erp_mask);
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int mlxsw_sp_acl_erp_bf_insert(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_erp_mask *erp_mask,
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struct mlxsw_sp_acl_atcam_entry *aentry);
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void mlxsw_sp_acl_erp_bf_remove(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam_region *aregion,
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struct mlxsw_sp_acl_erp_mask *erp_mask,
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struct mlxsw_sp_acl_atcam_entry *aentry);
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void *
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mlxsw_sp_acl_erp_rehash_hints_get(struct mlxsw_sp_acl_atcam_region *aregion);
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void mlxsw_sp_acl_erp_rehash_hints_put(void *hints_priv);
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int mlxsw_sp_acl_erp_region_init(struct mlxsw_sp_acl_atcam_region *aregion,
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void *hints_priv);
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void mlxsw_sp_acl_erp_region_fini(struct mlxsw_sp_acl_atcam_region *aregion);
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int mlxsw_sp_acl_erps_init(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam *atcam);
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void mlxsw_sp_acl_erps_fini(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_atcam *atcam);
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struct mlxsw_sp_acl_bf;
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int
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mlxsw_sp_acl_bf_entry_add(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_bf *bf,
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struct mlxsw_sp_acl_atcam_region *aregion,
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unsigned int erp_bank,
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struct mlxsw_sp_acl_atcam_entry *aentry);
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void
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mlxsw_sp_acl_bf_entry_del(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_bf *bf,
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struct mlxsw_sp_acl_atcam_region *aregion,
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unsigned int erp_bank,
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struct mlxsw_sp_acl_atcam_entry *aentry);
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struct mlxsw_sp_acl_bf *
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mlxsw_sp_acl_bf_init(struct mlxsw_sp *mlxsw_sp, unsigned int num_erp_banks);
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void mlxsw_sp_acl_bf_fini(struct mlxsw_sp_acl_bf *bf);
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#endif
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