| // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
| /* Copyright (c) 2017-2018 Mellanox Technologies. All rights reserved */ |
| |
| #include <linux/kernel.h> |
| #include <linux/errno.h> |
| #include <linux/parman.h> |
| |
| #include "reg.h" |
| #include "core.h" |
| #include "spectrum.h" |
| #include "spectrum_acl_tcam.h" |
| |
| static int |
| mlxsw_sp_acl_ctcam_region_resize(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region, |
| u16 new_size) |
| { |
| char ptar_pl[MLXSW_REG_PTAR_LEN]; |
| |
| mlxsw_reg_ptar_pack(ptar_pl, MLXSW_REG_PTAR_OP_RESIZE, |
| region->key_type, new_size, region->id, |
| region->tcam_region_info); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptar), ptar_pl); |
| } |
| |
| static void |
| mlxsw_sp_acl_ctcam_region_move(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region, |
| u16 src_offset, u16 dst_offset, u16 size) |
| { |
| char prcr_pl[MLXSW_REG_PRCR_LEN]; |
| |
| mlxsw_reg_prcr_pack(prcr_pl, MLXSW_REG_PRCR_OP_MOVE, |
| region->tcam_region_info, src_offset, |
| region->tcam_region_info, dst_offset, size); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(prcr), prcr_pl); |
| } |
| |
| static int |
| mlxsw_sp_acl_ctcam_region_entry_insert(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_ctcam_region *cregion, |
| struct mlxsw_sp_acl_ctcam_entry *centry, |
| struct mlxsw_sp_acl_rule_info *rulei, |
| bool fillup_priority) |
| { |
| struct mlxsw_sp_acl_tcam_region *region = cregion->region; |
| struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl); |
| char ptce2_pl[MLXSW_REG_PTCE2_LEN]; |
| char *act_set; |
| u32 priority; |
| char *mask; |
| char *key; |
| int err; |
| |
| err = mlxsw_sp_acl_tcam_priority_get(mlxsw_sp, rulei, &priority, |
| fillup_priority); |
| if (err) |
| return err; |
| |
| mlxsw_reg_ptce2_pack(ptce2_pl, true, MLXSW_REG_PTCE2_OP_WRITE_WRITE, |
| region->tcam_region_info, |
| centry->parman_item.index, priority); |
| key = mlxsw_reg_ptce2_flex_key_blocks_data(ptce2_pl); |
| mask = mlxsw_reg_ptce2_mask_data(ptce2_pl); |
| mlxsw_afk_encode(afk, region->key_info, &rulei->values, key, mask); |
| |
| err = cregion->ops->entry_insert(cregion, centry, mask); |
| if (err) |
| return err; |
| |
| /* Only the first action set belongs here, the rest is in KVD */ |
| act_set = mlxsw_afa_block_first_set(rulei->act_block); |
| mlxsw_reg_ptce2_flex_action_set_memcpy_to(ptce2_pl, act_set); |
| |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl); |
| if (err) |
| goto err_ptce2_write; |
| |
| return 0; |
| |
| err_ptce2_write: |
| cregion->ops->entry_remove(cregion, centry); |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_acl_ctcam_region_entry_remove(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_ctcam_region *cregion, |
| struct mlxsw_sp_acl_ctcam_entry *centry) |
| { |
| char ptce2_pl[MLXSW_REG_PTCE2_LEN]; |
| |
| mlxsw_reg_ptce2_pack(ptce2_pl, false, MLXSW_REG_PTCE2_OP_WRITE_WRITE, |
| cregion->region->tcam_region_info, |
| centry->parman_item.index, 0); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl); |
| cregion->ops->entry_remove(cregion, centry); |
| } |
| |
| static int |
| mlxsw_sp_acl_ctcam_region_entry_action_replace(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_ctcam_region *cregion, |
| struct mlxsw_sp_acl_ctcam_entry *centry, |
| struct mlxsw_afa_block *afa_block, |
| unsigned int priority) |
| { |
| char ptce2_pl[MLXSW_REG_PTCE2_LEN]; |
| char *act_set; |
| |
| mlxsw_reg_ptce2_pack(ptce2_pl, true, MLXSW_REG_PTCE2_OP_WRITE_UPDATE, |
| cregion->region->tcam_region_info, |
| centry->parman_item.index, priority); |
| |
| act_set = mlxsw_afa_block_first_set(afa_block); |
| mlxsw_reg_ptce2_flex_action_set_memcpy_to(ptce2_pl, act_set); |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl); |
| } |
| |
| |
| static int mlxsw_sp_acl_ctcam_region_parman_resize(void *priv, |
| unsigned long new_count) |
| { |
| struct mlxsw_sp_acl_ctcam_region *cregion = priv; |
| struct mlxsw_sp_acl_tcam_region *region = cregion->region; |
| struct mlxsw_sp *mlxsw_sp = region->mlxsw_sp; |
| u64 max_tcam_rules; |
| |
| max_tcam_rules = MLXSW_CORE_RES_GET(mlxsw_sp->core, ACL_MAX_TCAM_RULES); |
| if (new_count > max_tcam_rules) |
| return -EINVAL; |
| return mlxsw_sp_acl_ctcam_region_resize(mlxsw_sp, region, new_count); |
| } |
| |
| static void mlxsw_sp_acl_ctcam_region_parman_move(void *priv, |
| unsigned long from_index, |
| unsigned long to_index, |
| unsigned long count) |
| { |
| struct mlxsw_sp_acl_ctcam_region *cregion = priv; |
| struct mlxsw_sp_acl_tcam_region *region = cregion->region; |
| struct mlxsw_sp *mlxsw_sp = region->mlxsw_sp; |
| |
| mlxsw_sp_acl_ctcam_region_move(mlxsw_sp, region, |
| from_index, to_index, count); |
| } |
| |
| static const struct parman_ops mlxsw_sp_acl_ctcam_region_parman_ops = { |
| .base_count = MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT, |
| .resize_step = MLXSW_SP_ACL_TCAM_REGION_RESIZE_STEP, |
| .resize = mlxsw_sp_acl_ctcam_region_parman_resize, |
| .move = mlxsw_sp_acl_ctcam_region_parman_move, |
| .algo = PARMAN_ALGO_TYPE_LSORT, |
| }; |
| |
| 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, |
| const struct mlxsw_sp_acl_ctcam_region_ops *ops) |
| { |
| cregion->region = region; |
| cregion->ops = ops; |
| cregion->parman = parman_create(&mlxsw_sp_acl_ctcam_region_parman_ops, |
| cregion); |
| if (!cregion->parman) |
| return -ENOMEM; |
| return 0; |
| } |
| |
| void mlxsw_sp_acl_ctcam_region_fini(struct mlxsw_sp_acl_ctcam_region *cregion) |
| { |
| parman_destroy(cregion->parman); |
| } |
| |
| void mlxsw_sp_acl_ctcam_chunk_init(struct mlxsw_sp_acl_ctcam_region *cregion, |
| struct mlxsw_sp_acl_ctcam_chunk *cchunk, |
| unsigned int priority) |
| { |
| parman_prio_init(cregion->parman, &cchunk->parman_prio, priority); |
| } |
| |
| void mlxsw_sp_acl_ctcam_chunk_fini(struct mlxsw_sp_acl_ctcam_chunk *cchunk) |
| { |
| parman_prio_fini(&cchunk->parman_prio); |
| } |
| |
| 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) |
| { |
| int err; |
| |
| err = parman_item_add(cregion->parman, &cchunk->parman_prio, |
| ¢ry->parman_item); |
| if (err) |
| return err; |
| |
| err = mlxsw_sp_acl_ctcam_region_entry_insert(mlxsw_sp, cregion, centry, |
| rulei, fillup_priority); |
| if (err) |
| goto err_rule_insert; |
| return 0; |
| |
| err_rule_insert: |
| parman_item_remove(cregion->parman, &cchunk->parman_prio, |
| ¢ry->parman_item); |
| return err; |
| } |
| |
| 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) |
| { |
| mlxsw_sp_acl_ctcam_region_entry_remove(mlxsw_sp, cregion, centry); |
| parman_item_remove(cregion->parman, &cchunk->parman_prio, |
| ¢ry->parman_item); |
| } |
| |
| int mlxsw_sp_acl_ctcam_entry_action_replace(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) |
| { |
| return mlxsw_sp_acl_ctcam_region_entry_action_replace(mlxsw_sp, cregion, |
| centry, |
| rulei->act_block, |
| rulei->priority); |
| } |