// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
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/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
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#include <linux/kernel.h>
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#include "spectrum.h"
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#include "spectrum_acl_tcam.h"
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#include "core_acl_flex_actions.h"
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struct mlxsw_sp2_acl_tcam {
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struct mlxsw_sp_acl_atcam atcam;
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u32 kvdl_index;
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unsigned int kvdl_count;
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};
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struct mlxsw_sp2_acl_tcam_region {
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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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};
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struct mlxsw_sp2_acl_tcam_chunk {
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struct mlxsw_sp_acl_atcam_chunk achunk;
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};
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struct mlxsw_sp2_acl_tcam_entry {
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struct mlxsw_sp_acl_atcam_entry aentry;
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struct mlxsw_afa_block *act_block;
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};
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static int
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mlxsw_sp2_acl_ctcam_region_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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{
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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_erp_mask *erp_mask;
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aregion = mlxsw_sp_acl_tcam_cregion_aregion(cregion);
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aentry = mlxsw_sp_acl_tcam_centry_aentry(centry);
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erp_mask = mlxsw_sp_acl_erp_mask_get(aregion, mask, true);
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if (IS_ERR(erp_mask))
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return PTR_ERR(erp_mask);
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aentry->erp_mask = erp_mask;
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return 0;
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}
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static void
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mlxsw_sp2_acl_ctcam_region_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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struct mlxsw_sp_acl_atcam_region *aregion;
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struct mlxsw_sp_acl_atcam_entry *aentry;
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aregion = mlxsw_sp_acl_tcam_cregion_aregion(cregion);
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aentry = mlxsw_sp_acl_tcam_centry_aentry(centry);
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mlxsw_sp_acl_erp_mask_put(aregion, aentry->erp_mask);
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}
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static const struct mlxsw_sp_acl_ctcam_region_ops
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mlxsw_sp2_acl_ctcam_region_ops = {
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.entry_insert = mlxsw_sp2_acl_ctcam_region_entry_insert,
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.entry_remove = mlxsw_sp2_acl_ctcam_region_entry_remove,
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};
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static int mlxsw_sp2_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv,
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struct mlxsw_sp_acl_tcam *_tcam)
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{
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struct mlxsw_sp2_acl_tcam *tcam = priv;
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struct mlxsw_afa_block *afa_block;
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char pefa_pl[MLXSW_REG_PEFA_LEN];
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char pgcr_pl[MLXSW_REG_PGCR_LEN];
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char *enc_actions;
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int i;
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int err;
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tcam->kvdl_count = _tcam->max_regions;
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err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
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tcam->kvdl_count, &tcam->kvdl_index);
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if (err)
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return err;
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/* Create flex action block, set default action (continue)
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* but don't commit. We need just the current set encoding
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* to be written using PEFA register to all indexes for all regions.
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*/
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afa_block = mlxsw_afa_block_create(mlxsw_sp->afa);
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if (IS_ERR(afa_block)) {
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err = PTR_ERR(afa_block);
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goto err_afa_block;
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}
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err = mlxsw_afa_block_continue(afa_block);
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if (WARN_ON(err))
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goto err_afa_block_continue;
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enc_actions = mlxsw_afa_block_cur_set(afa_block);
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for (i = 0; i < tcam->kvdl_count; i++) {
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mlxsw_reg_pefa_pack(pefa_pl, tcam->kvdl_index + i,
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true, enc_actions);
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err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pefa), pefa_pl);
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if (err)
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goto err_pefa_write;
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}
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mlxsw_reg_pgcr_pack(pgcr_pl, tcam->kvdl_index);
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err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pgcr), pgcr_pl);
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if (err)
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goto err_pgcr_write;
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err = mlxsw_sp_acl_atcam_init(mlxsw_sp, &tcam->atcam);
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if (err)
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goto err_atcam_init;
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mlxsw_afa_block_destroy(afa_block);
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return 0;
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err_atcam_init:
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err_pgcr_write:
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err_pefa_write:
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err_afa_block_continue:
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mlxsw_afa_block_destroy(afa_block);
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err_afa_block:
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mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
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tcam->kvdl_count, tcam->kvdl_index);
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return err;
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}
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static void mlxsw_sp2_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, void *priv)
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{
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struct mlxsw_sp2_acl_tcam *tcam = priv;
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mlxsw_sp_acl_atcam_fini(mlxsw_sp, &tcam->atcam);
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mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ACTSET,
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tcam->kvdl_count, tcam->kvdl_index);
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}
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static int
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mlxsw_sp2_acl_tcam_region_init(struct mlxsw_sp *mlxsw_sp, void *region_priv,
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void *tcam_priv,
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struct mlxsw_sp_acl_tcam_region *_region,
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void *hints_priv)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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struct mlxsw_sp2_acl_tcam *tcam = tcam_priv;
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region->region = _region;
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return mlxsw_sp_acl_atcam_region_init(mlxsw_sp, &tcam->atcam,
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®ion->aregion,
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_region, hints_priv,
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&mlxsw_sp2_acl_ctcam_region_ops);
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}
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static void
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mlxsw_sp2_acl_tcam_region_fini(struct mlxsw_sp *mlxsw_sp, void *region_priv)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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mlxsw_sp_acl_atcam_region_fini(®ion->aregion);
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}
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static int
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mlxsw_sp2_acl_tcam_region_associate(struct mlxsw_sp *mlxsw_sp,
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struct mlxsw_sp_acl_tcam_region *region)
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{
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return mlxsw_sp_acl_atcam_region_associate(mlxsw_sp, region->id);
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}
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static void *mlxsw_sp2_acl_tcam_region_rehash_hints_get(void *region_priv)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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return mlxsw_sp_acl_atcam_rehash_hints_get(®ion->aregion);
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}
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static void mlxsw_sp2_acl_tcam_region_rehash_hints_put(void *hints_priv)
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{
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mlxsw_sp_acl_atcam_rehash_hints_put(hints_priv);
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}
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static void mlxsw_sp2_acl_tcam_chunk_init(void *region_priv, void *chunk_priv,
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unsigned int priority)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
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mlxsw_sp_acl_atcam_chunk_init(®ion->aregion, &chunk->achunk,
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priority);
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}
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static void mlxsw_sp2_acl_tcam_chunk_fini(void *chunk_priv)
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{
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struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
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mlxsw_sp_acl_atcam_chunk_fini(&chunk->achunk);
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}
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static int mlxsw_sp2_acl_tcam_entry_add(struct mlxsw_sp *mlxsw_sp,
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void *region_priv, void *chunk_priv,
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void *entry_priv,
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struct mlxsw_sp_acl_rule_info *rulei)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
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struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
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entry->act_block = rulei->act_block;
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return mlxsw_sp_acl_atcam_entry_add(mlxsw_sp, ®ion->aregion,
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&chunk->achunk, &entry->aentry,
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rulei);
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}
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static void mlxsw_sp2_acl_tcam_entry_del(struct mlxsw_sp *mlxsw_sp,
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void *region_priv, void *chunk_priv,
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void *entry_priv)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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struct mlxsw_sp2_acl_tcam_chunk *chunk = chunk_priv;
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struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
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mlxsw_sp_acl_atcam_entry_del(mlxsw_sp, ®ion->aregion, &chunk->achunk,
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&entry->aentry);
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}
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static int
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mlxsw_sp2_acl_tcam_entry_action_replace(struct mlxsw_sp *mlxsw_sp,
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void *region_priv, void *entry_priv,
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struct mlxsw_sp_acl_rule_info *rulei)
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{
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struct mlxsw_sp2_acl_tcam_region *region = region_priv;
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struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
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entry->act_block = rulei->act_block;
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return mlxsw_sp_acl_atcam_entry_action_replace(mlxsw_sp,
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®ion->aregion,
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&entry->aentry, rulei);
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}
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static int
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mlxsw_sp2_acl_tcam_entry_activity_get(struct mlxsw_sp *mlxsw_sp,
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void *region_priv, void *entry_priv,
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bool *activity)
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{
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struct mlxsw_sp2_acl_tcam_entry *entry = entry_priv;
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return mlxsw_afa_block_activity_get(entry->act_block, activity);
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}
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const struct mlxsw_sp_acl_tcam_ops mlxsw_sp2_acl_tcam_ops = {
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.key_type = MLXSW_REG_PTAR_KEY_TYPE_FLEX2,
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.priv_size = sizeof(struct mlxsw_sp2_acl_tcam),
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.init = mlxsw_sp2_acl_tcam_init,
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.fini = mlxsw_sp2_acl_tcam_fini,
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.region_priv_size = sizeof(struct mlxsw_sp2_acl_tcam_region),
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.region_init = mlxsw_sp2_acl_tcam_region_init,
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.region_fini = mlxsw_sp2_acl_tcam_region_fini,
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.region_associate = mlxsw_sp2_acl_tcam_region_associate,
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.region_rehash_hints_get = mlxsw_sp2_acl_tcam_region_rehash_hints_get,
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.region_rehash_hints_put = mlxsw_sp2_acl_tcam_region_rehash_hints_put,
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.chunk_priv_size = sizeof(struct mlxsw_sp2_acl_tcam_chunk),
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.chunk_init = mlxsw_sp2_acl_tcam_chunk_init,
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.chunk_fini = mlxsw_sp2_acl_tcam_chunk_fini,
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.entry_priv_size = sizeof(struct mlxsw_sp2_acl_tcam_entry),
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.entry_add = mlxsw_sp2_acl_tcam_entry_add,
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.entry_del = mlxsw_sp2_acl_tcam_entry_del,
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.entry_action_replace = mlxsw_sp2_acl_tcam_entry_action_replace,
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.entry_activity_get = mlxsw_sp2_acl_tcam_entry_activity_get,
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};
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