1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */ 3 4 #ifndef _MLXSW_SPECTRUM_ACL_TCAM_H 5 #define _MLXSW_SPECTRUM_ACL_TCAM_H 6 7 #include <linux/list.h> 8 #include <linux/parman.h> 9 #include <linux/idr.h> 10 11 #include "reg.h" 12 #include "spectrum.h" 13 #include "core_acl_flex_keys.h" 14 15 struct mlxsw_sp_acl_tcam { 16 struct ida used_regions; 17 unsigned int max_regions; 18 struct ida used_groups; 19 unsigned int max_groups; 20 unsigned int max_group_size; 21 struct mutex lock; /* guards vregion list */ 22 struct list_head vregion_list; 23 u32 vregion_rehash_intrvl; /* ms */ 24 unsigned long priv[]; 25 /* priv has to be always the last item */ 26 }; 27 28 size_t mlxsw_sp_acl_tcam_priv_size(struct mlxsw_sp *mlxsw_sp); 29 int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, 30 struct mlxsw_sp_acl_tcam *tcam); 31 void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, 32 struct mlxsw_sp_acl_tcam *tcam); 33 int mlxsw_sp_acl_tcam_priority_get(struct mlxsw_sp *mlxsw_sp, 34 struct mlxsw_sp_acl_rule_info *rulei, 35 u32 *priority, bool fillup_priority); 36 37 struct mlxsw_sp_acl_profile_ops { 38 size_t ruleset_priv_size; 39 int (*ruleset_add)(struct mlxsw_sp *mlxsw_sp, 40 struct mlxsw_sp_acl_tcam *tcam, void *ruleset_priv, 41 struct mlxsw_afk_element_usage *tmplt_elusage, 42 unsigned int *p_min_prio, unsigned int *p_max_prio); 43 void (*ruleset_del)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv); 44 int (*ruleset_bind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv, 45 struct mlxsw_sp_port *mlxsw_sp_port, 46 bool ingress); 47 void (*ruleset_unbind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv, 48 struct mlxsw_sp_port *mlxsw_sp_port, 49 bool ingress); 50 u16 (*ruleset_group_id)(void *ruleset_priv); 51 size_t rule_priv_size; 52 int (*rule_add)(struct mlxsw_sp *mlxsw_sp, 53 void *ruleset_priv, void *rule_priv, 54 struct mlxsw_sp_acl_rule_info *rulei); 55 void (*rule_del)(struct mlxsw_sp *mlxsw_sp, void *rule_priv); 56 int (*rule_action_replace)(struct mlxsw_sp *mlxsw_sp, void *rule_priv, 57 struct mlxsw_sp_acl_rule_info *rulei); 58 int (*rule_activity_get)(struct mlxsw_sp *mlxsw_sp, void *rule_priv, 59 bool *activity); 60 }; 61 62 const struct mlxsw_sp_acl_profile_ops * 63 mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp, 64 enum mlxsw_sp_acl_profile profile); 65 66 #define MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT 16 67 #define MLXSW_SP_ACL_TCAM_REGION_RESIZE_STEP 16 68 69 #define MLXSW_SP_ACL_TCAM_CATCHALL_PRIO (~0U) 70 71 #define MLXSW_SP_ACL_TCAM_MASK_LEN \ 72 (MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN * BITS_PER_BYTE) 73 74 struct mlxsw_sp_acl_tcam_group; 75 struct mlxsw_sp_acl_tcam_vregion; 76 77 struct mlxsw_sp_acl_tcam_region { 78 struct mlxsw_sp_acl_tcam_vregion *vregion; 79 struct mlxsw_sp_acl_tcam_group *group; 80 struct list_head list; /* Member of a TCAM group */ 81 enum mlxsw_reg_ptar_key_type key_type; 82 u16 id; /* ACL ID and region ID - they are same */ 83 char tcam_region_info[MLXSW_REG_PXXX_TCAM_REGION_INFO_LEN]; 84 struct mlxsw_afk_key_info *key_info; 85 struct mlxsw_sp *mlxsw_sp; 86 unsigned long priv[]; 87 /* priv has to be always the last item */ 88 }; 89 90 struct mlxsw_sp_acl_ctcam_region { 91 struct parman *parman; 92 const struct mlxsw_sp_acl_ctcam_region_ops *ops; 93 struct mlxsw_sp_acl_tcam_region *region; 94 }; 95 96 struct mlxsw_sp_acl_ctcam_chunk { 97 struct parman_prio parman_prio; 98 }; 99 100 struct mlxsw_sp_acl_ctcam_entry { 101 struct parman_item parman_item; 102 }; 103 104 struct mlxsw_sp_acl_ctcam_region_ops { 105 int (*entry_insert)(struct mlxsw_sp_acl_ctcam_region *cregion, 106 struct mlxsw_sp_acl_ctcam_entry *centry, 107 const char *mask); 108 void (*entry_remove)(struct mlxsw_sp_acl_ctcam_region *cregion, 109 struct mlxsw_sp_acl_ctcam_entry *centry); 110 }; 111 112 int 113 mlxsw_sp_acl_ctcam_region_init(struct mlxsw_sp *mlxsw_sp, 114 struct mlxsw_sp_acl_ctcam_region *cregion, 115 struct mlxsw_sp_acl_tcam_region *region, 116 const struct mlxsw_sp_acl_ctcam_region_ops *ops); 117 void mlxsw_sp_acl_ctcam_region_fini(struct mlxsw_sp_acl_ctcam_region *cregion); 118 void mlxsw_sp_acl_ctcam_chunk_init(struct mlxsw_sp_acl_ctcam_region *cregion, 119 struct mlxsw_sp_acl_ctcam_chunk *cchunk, 120 unsigned int priority); 121 void mlxsw_sp_acl_ctcam_chunk_fini(struct mlxsw_sp_acl_ctcam_chunk *cchunk); 122 int mlxsw_sp_acl_ctcam_entry_add(struct mlxsw_sp *mlxsw_sp, 123 struct mlxsw_sp_acl_ctcam_region *cregion, 124 struct mlxsw_sp_acl_ctcam_chunk *cchunk, 125 struct mlxsw_sp_acl_ctcam_entry *centry, 126 struct mlxsw_sp_acl_rule_info *rulei, 127 bool fillup_priority); 128 void mlxsw_sp_acl_ctcam_entry_del(struct mlxsw_sp *mlxsw_sp, 129 struct mlxsw_sp_acl_ctcam_region *cregion, 130 struct mlxsw_sp_acl_ctcam_chunk *cchunk, 131 struct mlxsw_sp_acl_ctcam_entry *centry); 132 int mlxsw_sp_acl_ctcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp, 133 struct mlxsw_sp_acl_ctcam_region *cregion, 134 struct mlxsw_sp_acl_ctcam_entry *centry, 135 struct mlxsw_sp_acl_rule_info *rulei); 136 static inline unsigned int 137 mlxsw_sp_acl_ctcam_entry_offset(struct mlxsw_sp_acl_ctcam_entry *centry) 138 { 139 return centry->parman_item.index; 140 } 141 142 enum mlxsw_sp_acl_atcam_region_type { 143 MLXSW_SP_ACL_ATCAM_REGION_TYPE_2KB, 144 MLXSW_SP_ACL_ATCAM_REGION_TYPE_4KB, 145 MLXSW_SP_ACL_ATCAM_REGION_TYPE_8KB, 146 MLXSW_SP_ACL_ATCAM_REGION_TYPE_12KB, 147 __MLXSW_SP_ACL_ATCAM_REGION_TYPE_MAX, 148 }; 149 150 #define MLXSW_SP_ACL_ATCAM_REGION_TYPE_MAX \ 151 (__MLXSW_SP_ACL_ATCAM_REGION_TYPE_MAX - 1) 152 153 struct mlxsw_sp_acl_atcam { 154 struct mlxsw_sp_acl_erp_core *erp_core; 155 }; 156 157 struct mlxsw_sp_acl_atcam_region { 158 struct rhashtable entries_ht; /* A-TCAM only */ 159 struct list_head entries_list; /* A-TCAM only */ 160 struct mlxsw_sp_acl_ctcam_region cregion; 161 const struct mlxsw_sp_acl_atcam_region_ops *ops; 162 struct mlxsw_sp_acl_tcam_region *region; 163 struct mlxsw_sp_acl_atcam *atcam; 164 enum mlxsw_sp_acl_atcam_region_type type; 165 struct mlxsw_sp_acl_erp_table *erp_table; 166 void *priv; 167 }; 168 169 struct mlxsw_sp_acl_atcam_entry_ht_key { 170 char enc_key[MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN]; /* Encoded key, minus 171 * delta bits. 172 */ 173 u8 erp_id; 174 }; 175 176 struct mlxsw_sp_acl_atcam_chunk { 177 struct mlxsw_sp_acl_ctcam_chunk cchunk; 178 }; 179 180 struct mlxsw_sp_acl_atcam_entry { 181 struct rhash_head ht_node; 182 struct list_head list; /* Member in entries_list */ 183 struct mlxsw_sp_acl_atcam_entry_ht_key ht_key; 184 struct { 185 u16 start; 186 u8 mask; 187 u8 value; 188 } delta_info; 189 struct mlxsw_sp_acl_ctcam_entry centry; 190 struct mlxsw_sp_acl_atcam_lkey_id *lkey_id; 191 struct mlxsw_sp_acl_erp_mask *erp_mask; 192 }; 193 194 static inline struct mlxsw_sp_acl_atcam_region * 195 mlxsw_sp_acl_tcam_cregion_aregion(struct mlxsw_sp_acl_ctcam_region *cregion) 196 { 197 return container_of(cregion, struct mlxsw_sp_acl_atcam_region, cregion); 198 } 199 200 static inline struct mlxsw_sp_acl_atcam_entry * 201 mlxsw_sp_acl_tcam_centry_aentry(struct mlxsw_sp_acl_ctcam_entry *centry) 202 { 203 return container_of(centry, struct mlxsw_sp_acl_atcam_entry, centry); 204 } 205 206 int mlxsw_sp_acl_atcam_region_associate(struct mlxsw_sp *mlxsw_sp, 207 u16 region_id); 208 int 209 mlxsw_sp_acl_atcam_region_init(struct mlxsw_sp *mlxsw_sp, 210 struct mlxsw_sp_acl_atcam *atcam, 211 struct mlxsw_sp_acl_atcam_region *aregion, 212 struct mlxsw_sp_acl_tcam_region *region, 213 void *hints_priv, 214 const struct mlxsw_sp_acl_ctcam_region_ops *ops); 215 void mlxsw_sp_acl_atcam_region_fini(struct mlxsw_sp_acl_atcam_region *aregion); 216 void mlxsw_sp_acl_atcam_chunk_init(struct mlxsw_sp_acl_atcam_region *aregion, 217 struct mlxsw_sp_acl_atcam_chunk *achunk, 218 unsigned int priority); 219 void mlxsw_sp_acl_atcam_chunk_fini(struct mlxsw_sp_acl_atcam_chunk *achunk); 220 int mlxsw_sp_acl_atcam_entry_add(struct mlxsw_sp *mlxsw_sp, 221 struct mlxsw_sp_acl_atcam_region *aregion, 222 struct mlxsw_sp_acl_atcam_chunk *achunk, 223 struct mlxsw_sp_acl_atcam_entry *aentry, 224 struct mlxsw_sp_acl_rule_info *rulei); 225 void mlxsw_sp_acl_atcam_entry_del(struct mlxsw_sp *mlxsw_sp, 226 struct mlxsw_sp_acl_atcam_region *aregion, 227 struct mlxsw_sp_acl_atcam_chunk *achunk, 228 struct mlxsw_sp_acl_atcam_entry *aentry); 229 int mlxsw_sp_acl_atcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp, 230 struct mlxsw_sp_acl_atcam_region *aregion, 231 struct mlxsw_sp_acl_atcam_entry *aentry, 232 struct mlxsw_sp_acl_rule_info *rulei); 233 int mlxsw_sp_acl_atcam_init(struct mlxsw_sp *mlxsw_sp, 234 struct mlxsw_sp_acl_atcam *atcam); 235 void mlxsw_sp_acl_atcam_fini(struct mlxsw_sp *mlxsw_sp, 236 struct mlxsw_sp_acl_atcam *atcam); 237 void * 238 mlxsw_sp_acl_atcam_rehash_hints_get(struct mlxsw_sp_acl_atcam_region *aregion); 239 void mlxsw_sp_acl_atcam_rehash_hints_put(void *hints_priv); 240 241 struct mlxsw_sp_acl_erp_delta; 242 243 u16 mlxsw_sp_acl_erp_delta_start(const struct mlxsw_sp_acl_erp_delta *delta); 244 u8 mlxsw_sp_acl_erp_delta_mask(const struct mlxsw_sp_acl_erp_delta *delta); 245 u8 mlxsw_sp_acl_erp_delta_value(const struct mlxsw_sp_acl_erp_delta *delta, 246 const char *enc_key); 247 void mlxsw_sp_acl_erp_delta_clear(const struct mlxsw_sp_acl_erp_delta *delta, 248 const char *enc_key); 249 250 struct mlxsw_sp_acl_erp_mask; 251 252 bool 253 mlxsw_sp_acl_erp_mask_is_ctcam(const struct mlxsw_sp_acl_erp_mask *erp_mask); 254 u8 mlxsw_sp_acl_erp_mask_erp_id(const struct mlxsw_sp_acl_erp_mask *erp_mask); 255 const struct mlxsw_sp_acl_erp_delta * 256 mlxsw_sp_acl_erp_delta(const struct mlxsw_sp_acl_erp_mask *erp_mask); 257 struct mlxsw_sp_acl_erp_mask * 258 mlxsw_sp_acl_erp_mask_get(struct mlxsw_sp_acl_atcam_region *aregion, 259 const char *mask, bool ctcam); 260 void mlxsw_sp_acl_erp_mask_put(struct mlxsw_sp_acl_atcam_region *aregion, 261 struct mlxsw_sp_acl_erp_mask *erp_mask); 262 int mlxsw_sp_acl_erp_bf_insert(struct mlxsw_sp *mlxsw_sp, 263 struct mlxsw_sp_acl_atcam_region *aregion, 264 struct mlxsw_sp_acl_erp_mask *erp_mask, 265 struct mlxsw_sp_acl_atcam_entry *aentry); 266 void mlxsw_sp_acl_erp_bf_remove(struct mlxsw_sp *mlxsw_sp, 267 struct mlxsw_sp_acl_atcam_region *aregion, 268 struct mlxsw_sp_acl_erp_mask *erp_mask, 269 struct mlxsw_sp_acl_atcam_entry *aentry); 270 void * 271 mlxsw_sp_acl_erp_rehash_hints_get(struct mlxsw_sp_acl_atcam_region *aregion); 272 void mlxsw_sp_acl_erp_rehash_hints_put(void *hints_priv); 273 int mlxsw_sp_acl_erp_region_init(struct mlxsw_sp_acl_atcam_region *aregion, 274 void *hints_priv); 275 void mlxsw_sp_acl_erp_region_fini(struct mlxsw_sp_acl_atcam_region *aregion); 276 int mlxsw_sp_acl_erps_init(struct mlxsw_sp *mlxsw_sp, 277 struct mlxsw_sp_acl_atcam *atcam); 278 void mlxsw_sp_acl_erps_fini(struct mlxsw_sp *mlxsw_sp, 279 struct mlxsw_sp_acl_atcam *atcam); 280 281 struct mlxsw_sp_acl_bf; 282 283 struct mlxsw_sp_acl_bf_ops { 284 unsigned int (*index_get)(struct mlxsw_sp_acl_bf *bf, 285 struct mlxsw_sp_acl_atcam_region *aregion, 286 struct mlxsw_sp_acl_atcam_entry *aentry); 287 }; 288 289 int 290 mlxsw_sp_acl_bf_entry_add(struct mlxsw_sp *mlxsw_sp, 291 struct mlxsw_sp_acl_bf *bf, 292 struct mlxsw_sp_acl_atcam_region *aregion, 293 unsigned int erp_bank, 294 struct mlxsw_sp_acl_atcam_entry *aentry); 295 void 296 mlxsw_sp_acl_bf_entry_del(struct mlxsw_sp *mlxsw_sp, 297 struct mlxsw_sp_acl_bf *bf, 298 struct mlxsw_sp_acl_atcam_region *aregion, 299 unsigned int erp_bank, 300 struct mlxsw_sp_acl_atcam_entry *aentry); 301 struct mlxsw_sp_acl_bf * 302 mlxsw_sp_acl_bf_init(struct mlxsw_sp *mlxsw_sp, unsigned int num_erp_banks); 303 void mlxsw_sp_acl_bf_fini(struct mlxsw_sp_acl_bf *bf); 304 305 #endif 306