| /* |
| * drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c |
| * Copyright (c) 2017 Mellanox Technologies. All rights reserved. |
| * Copyright (c) 2017 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. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/slab.h> |
| #include <linux/errno.h> |
| #include <linux/bitops.h> |
| #include <linux/list.h> |
| #include <linux/rhashtable.h> |
| #include <linux/netdevice.h> |
| #include <linux/parman.h> |
| |
| #include "reg.h" |
| #include "core.h" |
| #include "resources.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; |
| }; |
| |
| static int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv) |
| { |
| struct mlxsw_sp_acl_tcam *tcam = priv; |
| u64 max_tcam_regions; |
| u64 max_regions; |
| u64 max_groups; |
| size_t alloc_size; |
| int err; |
| |
| max_tcam_regions = MLXSW_CORE_RES_GET(mlxsw_sp->core, |
| ACL_MAX_TCAM_REGIONS); |
| max_regions = MLXSW_CORE_RES_GET(mlxsw_sp->core, ACL_MAX_REGIONS); |
| |
| /* Use 1:1 mapping between ACL region and TCAM region */ |
| if (max_tcam_regions < max_regions) |
| max_regions = max_tcam_regions; |
| |
| alloc_size = sizeof(tcam->used_regions[0]) * BITS_TO_LONGS(max_regions); |
| tcam->used_regions = kzalloc(alloc_size, GFP_KERNEL); |
| if (!tcam->used_regions) |
| return -ENOMEM; |
| tcam->max_regions = max_regions; |
| |
| max_groups = MLXSW_CORE_RES_GET(mlxsw_sp->core, ACL_MAX_GROUPS); |
| alloc_size = sizeof(tcam->used_groups[0]) * BITS_TO_LONGS(max_groups); |
| tcam->used_groups = kzalloc(alloc_size, GFP_KERNEL); |
| if (!tcam->used_groups) { |
| err = -ENOMEM; |
| goto err_alloc_used_groups; |
| } |
| tcam->max_groups = max_groups; |
| tcam->max_group_size = MLXSW_CORE_RES_GET(mlxsw_sp->core, |
| ACL_MAX_GROUP_SIZE); |
| return 0; |
| |
| err_alloc_used_groups: |
| kfree(tcam->used_regions); |
| return err; |
| } |
| |
| static void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, void *priv) |
| { |
| struct mlxsw_sp_acl_tcam *tcam = priv; |
| |
| kfree(tcam->used_groups); |
| kfree(tcam->used_regions); |
| } |
| |
| static int mlxsw_sp_acl_tcam_region_id_get(struct mlxsw_sp_acl_tcam *tcam, |
| u16 *p_id) |
| { |
| u16 id; |
| |
| id = find_first_zero_bit(tcam->used_regions, tcam->max_regions); |
| if (id < tcam->max_regions) { |
| __set_bit(id, tcam->used_regions); |
| *p_id = id; |
| return 0; |
| } |
| return -ENOBUFS; |
| } |
| |
| static void mlxsw_sp_acl_tcam_region_id_put(struct mlxsw_sp_acl_tcam *tcam, |
| u16 id) |
| { |
| __clear_bit(id, tcam->used_regions); |
| } |
| |
| static int mlxsw_sp_acl_tcam_group_id_get(struct mlxsw_sp_acl_tcam *tcam, |
| u16 *p_id) |
| { |
| u16 id; |
| |
| id = find_first_zero_bit(tcam->used_groups, tcam->max_groups); |
| if (id < tcam->max_groups) { |
| __set_bit(id, tcam->used_groups); |
| *p_id = id; |
| return 0; |
| } |
| return -ENOBUFS; |
| } |
| |
| static void mlxsw_sp_acl_tcam_group_id_put(struct mlxsw_sp_acl_tcam *tcam, |
| u16 id) |
| { |
| __clear_bit(id, tcam->used_groups); |
| } |
| |
| struct mlxsw_sp_acl_tcam_pattern { |
| const enum mlxsw_afk_element *elements; |
| unsigned int elements_count; |
| }; |
| |
| struct mlxsw_sp_acl_tcam_group { |
| struct mlxsw_sp_acl_tcam *tcam; |
| u16 id; |
| struct list_head region_list; |
| unsigned int region_count; |
| struct rhashtable chunk_ht; |
| struct { |
| u16 local_port; |
| bool ingress; |
| } bound; |
| struct mlxsw_sp_acl_tcam_group_ops *ops; |
| const struct mlxsw_sp_acl_tcam_pattern *patterns; |
| unsigned int patterns_count; |
| }; |
| |
| 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 parman *parman; |
| struct mlxsw_sp *mlxsw_sp; |
| struct mlxsw_sp_acl_tcam_group *group; |
| 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 { |
| struct parman_prio parman_prio; |
| struct parman_item parman_item; |
| struct mlxsw_sp_acl_rule_info *rulei; |
| } catchall; |
| }; |
| |
| struct mlxsw_sp_acl_tcam_chunk { |
| struct list_head list; /* Member of a TCAM region */ |
| struct rhash_head ht_node; /* Member of a chunk HT */ |
| unsigned int priority; /* Priority within the region and group */ |
| struct parman_prio parman_prio; |
| struct mlxsw_sp_acl_tcam_group *group; |
| struct mlxsw_sp_acl_tcam_region *region; |
| unsigned int ref_count; |
| }; |
| |
| struct mlxsw_sp_acl_tcam_entry { |
| struct parman_item parman_item; |
| struct mlxsw_sp_acl_tcam_chunk *chunk; |
| }; |
| |
| static const struct rhashtable_params mlxsw_sp_acl_tcam_chunk_ht_params = { |
| .key_len = sizeof(unsigned int), |
| .key_offset = offsetof(struct mlxsw_sp_acl_tcam_chunk, priority), |
| .head_offset = offsetof(struct mlxsw_sp_acl_tcam_chunk, ht_node), |
| .automatic_shrinking = true, |
| }; |
| |
| static int mlxsw_sp_acl_tcam_group_update(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group) |
| { |
| struct mlxsw_sp_acl_tcam_region *region; |
| char pagt_pl[MLXSW_REG_PAGT_LEN]; |
| int acl_index = 0; |
| |
| mlxsw_reg_pagt_pack(pagt_pl, group->id); |
| list_for_each_entry(region, &group->region_list, list) |
| mlxsw_reg_pagt_acl_id_pack(pagt_pl, acl_index++, region->id); |
| mlxsw_reg_pagt_size_set(pagt_pl, acl_index); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pagt), pagt_pl); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_group_add(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam *tcam, |
| struct mlxsw_sp_acl_tcam_group *group, |
| const struct mlxsw_sp_acl_tcam_pattern *patterns, |
| unsigned int patterns_count) |
| { |
| int err; |
| |
| group->tcam = tcam; |
| group->patterns = patterns; |
| group->patterns_count = patterns_count; |
| INIT_LIST_HEAD(&group->region_list); |
| err = mlxsw_sp_acl_tcam_group_id_get(tcam, &group->id); |
| if (err) |
| return err; |
| |
| err = mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group); |
| if (err) |
| goto err_group_update; |
| |
| err = rhashtable_init(&group->chunk_ht, |
| &mlxsw_sp_acl_tcam_chunk_ht_params); |
| if (err) |
| goto err_rhashtable_init; |
| |
| return 0; |
| |
| err_rhashtable_init: |
| err_group_update: |
| mlxsw_sp_acl_tcam_group_id_put(tcam, group->id); |
| return err; |
| } |
| |
| static void mlxsw_sp_acl_tcam_group_del(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group) |
| { |
| struct mlxsw_sp_acl_tcam *tcam = group->tcam; |
| |
| rhashtable_destroy(&group->chunk_ht); |
| mlxsw_sp_acl_tcam_group_id_put(tcam, group->id); |
| WARN_ON(!list_empty(&group->region_list)); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_group_bind(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group, |
| struct net_device *dev, bool ingress) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port; |
| char ppbt_pl[MLXSW_REG_PPBT_LEN]; |
| |
| if (!mlxsw_sp_port_dev_check(dev)) |
| return -EINVAL; |
| |
| mlxsw_sp_port = netdev_priv(dev); |
| group->bound.local_port = mlxsw_sp_port->local_port; |
| group->bound.ingress = ingress; |
| mlxsw_reg_ppbt_pack(ppbt_pl, |
| group->bound.ingress ? MLXSW_REG_PXBT_E_IACL : |
| MLXSW_REG_PXBT_E_EACL, |
| MLXSW_REG_PXBT_OP_BIND, group->bound.local_port, |
| group->id); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppbt), ppbt_pl); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_group_unbind(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group) |
| { |
| char ppbt_pl[MLXSW_REG_PPBT_LEN]; |
| |
| mlxsw_reg_ppbt_pack(ppbt_pl, |
| group->bound.ingress ? MLXSW_REG_PXBT_E_IACL : |
| MLXSW_REG_PXBT_E_EACL, |
| MLXSW_REG_PXBT_OP_UNBIND, group->bound.local_port, |
| group->id); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppbt), ppbt_pl); |
| } |
| |
| static u16 |
| mlxsw_sp_acl_tcam_group_id(struct mlxsw_sp_acl_tcam_group *group) |
| { |
| return group->id; |
| } |
| |
| static unsigned int |
| mlxsw_sp_acl_tcam_region_prio(struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk; |
| |
| if (list_empty(®ion->chunk_list)) |
| return 0; |
| /* As a priority of a region, return priority of the first chunk */ |
| chunk = list_first_entry(®ion->chunk_list, typeof(*chunk), list); |
| return chunk->priority; |
| } |
| |
| static unsigned int |
| mlxsw_sp_acl_tcam_region_max_prio(struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk; |
| |
| if (list_empty(®ion->chunk_list)) |
| return 0; |
| chunk = list_last_entry(®ion->chunk_list, typeof(*chunk), list); |
| return chunk->priority; |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_group_list_add(struct mlxsw_sp_acl_tcam_group *group, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct mlxsw_sp_acl_tcam_region *region2; |
| struct list_head *pos; |
| |
| /* Position the region inside the list according to priority */ |
| list_for_each(pos, &group->region_list) { |
| region2 = list_entry(pos, typeof(*region2), list); |
| if (mlxsw_sp_acl_tcam_region_prio(region2) > |
| mlxsw_sp_acl_tcam_region_prio(region)) |
| break; |
| } |
| list_add_tail(®ion->list, pos); |
| group->region_count++; |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_group_list_del(struct mlxsw_sp_acl_tcam_group *group, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| group->region_count--; |
| list_del(®ion->list); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_group_region_attach(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| int err; |
| |
| if (group->region_count == group->tcam->max_group_size) |
| return -ENOBUFS; |
| |
| mlxsw_sp_acl_tcam_group_list_add(group, region); |
| |
| err = mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group); |
| if (err) |
| goto err_group_update; |
| region->group = group; |
| |
| return 0; |
| |
| err_group_update: |
| mlxsw_sp_acl_tcam_group_list_del(group, region); |
| mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group); |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_group_region_detach(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct mlxsw_sp_acl_tcam_group *group = region->group; |
| |
| mlxsw_sp_acl_tcam_group_list_del(group, region); |
| mlxsw_sp_acl_tcam_group_update(mlxsw_sp, group); |
| } |
| |
| static struct mlxsw_sp_acl_tcam_region * |
| mlxsw_sp_acl_tcam_group_region_find(struct mlxsw_sp_acl_tcam_group *group, |
| unsigned int priority, |
| struct mlxsw_afk_element_usage *elusage, |
| bool *p_need_split) |
| { |
| struct mlxsw_sp_acl_tcam_region *region, *region2; |
| struct list_head *pos; |
| bool issubset; |
| |
| list_for_each(pos, &group->region_list) { |
| region = list_entry(pos, typeof(*region), list); |
| |
| /* First, check if the requested priority does not rather belong |
| * under some of the next regions. |
| */ |
| if (pos->next != &group->region_list) { /* not last */ |
| region2 = list_entry(pos->next, typeof(*region2), list); |
| if (priority >= mlxsw_sp_acl_tcam_region_prio(region2)) |
| continue; |
| } |
| |
| issubset = mlxsw_afk_key_info_subset(region->key_info, elusage); |
| |
| /* If requested element usage would not fit and the priority |
| * is lower than the currently inspected region we cannot |
| * use this region, so return NULL to indicate new region has |
| * to be created. |
| */ |
| if (!issubset && |
| priority < mlxsw_sp_acl_tcam_region_prio(region)) |
| return NULL; |
| |
| /* If requested element usage would not fit and the priority |
| * is higher than the currently inspected region we cannot |
| * use this region. There is still some hope that the next |
| * region would be the fit. So let it be processed and |
| * eventually break at the check right above this. |
| */ |
| if (!issubset && |
| priority > mlxsw_sp_acl_tcam_region_max_prio(region)) |
| continue; |
| |
| /* Indicate if the region needs to be split in order to add |
| * the requested priority. Split is needed when requested |
| * element usage won't fit into the found region. |
| */ |
| *p_need_split = !issubset; |
| return region; |
| } |
| return NULL; /* New region has to be created. */ |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_group_use_patterns(struct mlxsw_sp_acl_tcam_group *group, |
| struct mlxsw_afk_element_usage *elusage, |
| struct mlxsw_afk_element_usage *out) |
| { |
| const struct mlxsw_sp_acl_tcam_pattern *pattern; |
| int i; |
| |
| for (i = 0; i < group->patterns_count; i++) { |
| pattern = &group->patterns[i]; |
| mlxsw_afk_element_usage_fill(out, pattern->elements, |
| pattern->elements_count); |
| if (mlxsw_afk_element_usage_subset(elusage, out)) |
| return; |
| } |
| memcpy(out, elusage, sizeof(*out)); |
| } |
| |
| #define MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT 16 |
| #define MLXSW_SP_ACL_TCAM_REGION_RESIZE_STEP 16 |
| |
| static int |
| mlxsw_sp_acl_tcam_region_alloc(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct mlxsw_afk_key_info *key_info = region->key_info; |
| char ptar_pl[MLXSW_REG_PTAR_LEN]; |
| unsigned int encodings_count; |
| int i; |
| int err; |
| |
| mlxsw_reg_ptar_pack(ptar_pl, MLXSW_REG_PTAR_OP_ALLOC, |
| MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT, |
| region->id, region->tcam_region_info); |
| encodings_count = mlxsw_afk_key_info_blocks_count_get(key_info); |
| for (i = 0; i < encodings_count; i++) { |
| u16 encoding; |
| |
| encoding = mlxsw_afk_key_info_block_encoding_get(key_info, i); |
| mlxsw_reg_ptar_key_id_pack(ptar_pl, i, encoding); |
| } |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptar), ptar_pl); |
| if (err) |
| return err; |
| mlxsw_reg_ptar_unpack(ptar_pl, region->tcam_region_info); |
| return 0; |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_region_free(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| char ptar_pl[MLXSW_REG_PTAR_LEN]; |
| |
| mlxsw_reg_ptar_pack(ptar_pl, MLXSW_REG_PTAR_OP_FREE, 0, region->id, |
| region->tcam_region_info); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptar), ptar_pl); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_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, |
| new_size, region->id, region->tcam_region_info); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptar), ptar_pl); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_region_enable(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| char pacl_pl[MLXSW_REG_PACL_LEN]; |
| |
| mlxsw_reg_pacl_pack(pacl_pl, region->id, true, |
| region->tcam_region_info); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pacl), pacl_pl); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_region_disable(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| char pacl_pl[MLXSW_REG_PACL_LEN]; |
| |
| mlxsw_reg_pacl_pack(pacl_pl, region->id, false, |
| region->tcam_region_info); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pacl), pacl_pl); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_region_entry_insert(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region, |
| unsigned int offset, |
| struct mlxsw_sp_acl_rule_info *rulei) |
| { |
| char ptce2_pl[MLXSW_REG_PTCE2_LEN]; |
| char *act_set; |
| char *mask; |
| char *key; |
| |
| mlxsw_reg_ptce2_pack(ptce2_pl, true, MLXSW_REG_PTCE2_OP_WRITE_WRITE, |
| region->tcam_region_info, offset); |
| key = mlxsw_reg_ptce2_flex_key_blocks_data(ptce2_pl); |
| mask = mlxsw_reg_ptce2_mask_data(ptce2_pl); |
| mlxsw_afk_encode(region->key_info, &rulei->values, key, mask); |
| |
| /* 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); |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_region_entry_remove(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region, |
| unsigned int offset) |
| { |
| char ptce2_pl[MLXSW_REG_PTCE2_LEN]; |
| |
| mlxsw_reg_ptce2_pack(ptce2_pl, false, MLXSW_REG_PTCE2_OP_WRITE_WRITE, |
| region->tcam_region_info, offset); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_region_entry_activity_get(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region, |
| unsigned int offset, |
| bool *activity) |
| { |
| char ptce2_pl[MLXSW_REG_PTCE2_LEN]; |
| int err; |
| |
| mlxsw_reg_ptce2_pack(ptce2_pl, true, MLXSW_REG_PTCE2_OP_QUERY_CLEAR_ON_READ, |
| region->tcam_region_info, offset); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptce2), ptce2_pl); |
| if (err) |
| return err; |
| *activity = mlxsw_reg_ptce2_a_get(ptce2_pl); |
| return 0; |
| } |
| |
| #define MLXSW_SP_ACL_TCAM_CATCHALL_PRIO (~0U) |
| |
| static int |
| mlxsw_sp_acl_tcam_region_catchall_add(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct parman_prio *parman_prio = ®ion->catchall.parman_prio; |
| struct parman_item *parman_item = ®ion->catchall.parman_item; |
| struct mlxsw_sp_acl_rule_info *rulei; |
| int err; |
| |
| parman_prio_init(region->parman, parman_prio, |
| MLXSW_SP_ACL_TCAM_CATCHALL_PRIO); |
| err = parman_item_add(region->parman, parman_prio, parman_item); |
| if (err) |
| goto err_parman_item_add; |
| |
| rulei = mlxsw_sp_acl_rulei_create(mlxsw_sp->acl); |
| if (IS_ERR(rulei)) { |
| err = PTR_ERR(rulei); |
| goto err_rulei_create; |
| } |
| |
| mlxsw_sp_acl_rulei_act_continue(rulei); |
| err = mlxsw_sp_acl_rulei_commit(rulei); |
| if (err) |
| goto err_rulei_commit; |
| |
| err = mlxsw_sp_acl_tcam_region_entry_insert(mlxsw_sp, region, |
| parman_item->index, rulei); |
| region->catchall.rulei = rulei; |
| if (err) |
| goto err_rule_insert; |
| |
| return 0; |
| |
| err_rule_insert: |
| err_rulei_commit: |
| mlxsw_sp_acl_rulei_destroy(rulei); |
| err_rulei_create: |
| parman_item_remove(region->parman, parman_prio, parman_item); |
| err_parman_item_add: |
| parman_prio_fini(parman_prio); |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_region_catchall_del(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| struct parman_prio *parman_prio = ®ion->catchall.parman_prio; |
| struct parman_item *parman_item = ®ion->catchall.parman_item; |
| struct mlxsw_sp_acl_rule_info *rulei = region->catchall.rulei; |
| |
| mlxsw_sp_acl_tcam_region_entry_remove(mlxsw_sp, region, |
| parman_item->index); |
| mlxsw_sp_acl_rulei_destroy(rulei); |
| parman_item_remove(region->parman, parman_prio, parman_item); |
| parman_prio_fini(parman_prio); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_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_tcam_region_parman_resize(void *priv, |
| unsigned long new_count) |
| { |
| struct mlxsw_sp_acl_tcam_region *region = priv; |
| 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_tcam_region_resize(mlxsw_sp, region, new_count); |
| } |
| |
| static void mlxsw_sp_acl_tcam_region_parman_move(void *priv, |
| unsigned long from_index, |
| unsigned long to_index, |
| unsigned long count) |
| { |
| struct mlxsw_sp_acl_tcam_region *region = priv; |
| struct mlxsw_sp *mlxsw_sp = region->mlxsw_sp; |
| |
| mlxsw_sp_acl_tcam_region_move(mlxsw_sp, region, |
| from_index, to_index, count); |
| } |
| |
| static const struct parman_ops mlxsw_sp_acl_tcam_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_tcam_region_parman_resize, |
| .move = mlxsw_sp_acl_tcam_region_parman_move, |
| .algo = PARMAN_ALGO_TYPE_LSORT, |
| }; |
| |
| static struct mlxsw_sp_acl_tcam_region * |
| mlxsw_sp_acl_tcam_region_create(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam *tcam, |
| struct mlxsw_afk_element_usage *elusage) |
| { |
| struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl); |
| struct mlxsw_sp_acl_tcam_region *region; |
| int err; |
| |
| region = kzalloc(sizeof(*region), GFP_KERNEL); |
| if (!region) |
| return ERR_PTR(-ENOMEM); |
| INIT_LIST_HEAD(®ion->chunk_list); |
| region->mlxsw_sp = mlxsw_sp; |
| |
| region->parman = parman_create(&mlxsw_sp_acl_tcam_region_parman_ops, |
| region); |
| if (!region->parman) { |
| err = -ENOMEM; |
| goto err_parman_create; |
| } |
| |
| region->key_info = mlxsw_afk_key_info_get(afk, elusage); |
| if (IS_ERR(region->key_info)) { |
| err = PTR_ERR(region->key_info); |
| goto err_key_info_get; |
| } |
| |
| err = mlxsw_sp_acl_tcam_region_id_get(tcam, ®ion->id); |
| if (err) |
| goto err_region_id_get; |
| |
| err = mlxsw_sp_acl_tcam_region_alloc(mlxsw_sp, region); |
| if (err) |
| goto err_tcam_region_alloc; |
| |
| err = mlxsw_sp_acl_tcam_region_enable(mlxsw_sp, region); |
| if (err) |
| goto err_tcam_region_enable; |
| |
| err = mlxsw_sp_acl_tcam_region_catchall_add(mlxsw_sp, region); |
| if (err) |
| goto err_tcam_region_catchall_add; |
| |
| return region; |
| |
| err_tcam_region_catchall_add: |
| mlxsw_sp_acl_tcam_region_disable(mlxsw_sp, region); |
| err_tcam_region_enable: |
| mlxsw_sp_acl_tcam_region_free(mlxsw_sp, region); |
| err_tcam_region_alloc: |
| mlxsw_sp_acl_tcam_region_id_put(tcam, region->id); |
| err_region_id_get: |
| mlxsw_afk_key_info_put(region->key_info); |
| err_key_info_get: |
| parman_destroy(region->parman); |
| err_parman_create: |
| kfree(region); |
| return ERR_PTR(err); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_region_destroy(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_region *region) |
| { |
| mlxsw_sp_acl_tcam_region_catchall_del(mlxsw_sp, region); |
| mlxsw_sp_acl_tcam_region_disable(mlxsw_sp, region); |
| mlxsw_sp_acl_tcam_region_free(mlxsw_sp, region); |
| mlxsw_sp_acl_tcam_region_id_put(region->group->tcam, region->id); |
| mlxsw_afk_key_info_put(region->key_info); |
| parman_destroy(region->parman); |
| kfree(region); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_chunk_assoc(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group, |
| unsigned int priority, |
| struct mlxsw_afk_element_usage *elusage, |
| struct mlxsw_sp_acl_tcam_chunk *chunk) |
| { |
| struct mlxsw_sp_acl_tcam_region *region; |
| bool region_created = false; |
| bool need_split; |
| int err; |
| |
| region = mlxsw_sp_acl_tcam_group_region_find(group, priority, elusage, |
| &need_split); |
| if (region && need_split) { |
| /* According to priority, the chunk should belong to an |
| * existing region. However, this chunk needs elements |
| * that region does not contain. We need to split the existing |
| * region into two and create a new region for this chunk |
| * in between. This is not supported now. |
| */ |
| return -EOPNOTSUPP; |
| } |
| if (!region) { |
| struct mlxsw_afk_element_usage region_elusage; |
| |
| mlxsw_sp_acl_tcam_group_use_patterns(group, elusage, |
| ®ion_elusage); |
| region = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, group->tcam, |
| ®ion_elusage); |
| if (IS_ERR(region)) |
| return PTR_ERR(region); |
| region_created = true; |
| } |
| |
| chunk->region = region; |
| list_add_tail(&chunk->list, ®ion->chunk_list); |
| |
| if (!region_created) |
| return 0; |
| |
| err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp, group, region); |
| if (err) |
| goto err_group_region_attach; |
| |
| return 0; |
| |
| err_group_region_attach: |
| mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, region); |
| return err; |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_chunk_deassoc(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_chunk *chunk) |
| { |
| struct mlxsw_sp_acl_tcam_region *region = chunk->region; |
| |
| list_del(&chunk->list); |
| if (list_empty(®ion->chunk_list)) { |
| mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, region); |
| mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, region); |
| } |
| } |
| |
| static struct mlxsw_sp_acl_tcam_chunk * |
| mlxsw_sp_acl_tcam_chunk_create(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group, |
| unsigned int priority, |
| struct mlxsw_afk_element_usage *elusage) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk; |
| int err; |
| |
| if (priority == MLXSW_SP_ACL_TCAM_CATCHALL_PRIO) |
| return ERR_PTR(-EINVAL); |
| |
| chunk = kzalloc(sizeof(*chunk), GFP_KERNEL); |
| if (!chunk) |
| return ERR_PTR(-ENOMEM); |
| chunk->priority = priority; |
| chunk->group = group; |
| chunk->ref_count = 1; |
| |
| err = mlxsw_sp_acl_tcam_chunk_assoc(mlxsw_sp, group, priority, |
| elusage, chunk); |
| if (err) |
| goto err_chunk_assoc; |
| |
| parman_prio_init(chunk->region->parman, &chunk->parman_prio, priority); |
| |
| err = rhashtable_insert_fast(&group->chunk_ht, &chunk->ht_node, |
| mlxsw_sp_acl_tcam_chunk_ht_params); |
| if (err) |
| goto err_rhashtable_insert; |
| |
| return chunk; |
| |
| err_rhashtable_insert: |
| parman_prio_fini(&chunk->parman_prio); |
| mlxsw_sp_acl_tcam_chunk_deassoc(mlxsw_sp, chunk); |
| err_chunk_assoc: |
| kfree(chunk); |
| return ERR_PTR(err); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_chunk_destroy(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_chunk *chunk) |
| { |
| struct mlxsw_sp_acl_tcam_group *group = chunk->group; |
| |
| rhashtable_remove_fast(&group->chunk_ht, &chunk->ht_node, |
| mlxsw_sp_acl_tcam_chunk_ht_params); |
| parman_prio_fini(&chunk->parman_prio); |
| mlxsw_sp_acl_tcam_chunk_deassoc(mlxsw_sp, chunk); |
| kfree(chunk); |
| } |
| |
| static struct mlxsw_sp_acl_tcam_chunk * |
| mlxsw_sp_acl_tcam_chunk_get(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group, |
| unsigned int priority, |
| struct mlxsw_afk_element_usage *elusage) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk; |
| |
| chunk = rhashtable_lookup_fast(&group->chunk_ht, &priority, |
| mlxsw_sp_acl_tcam_chunk_ht_params); |
| if (chunk) { |
| if (WARN_ON(!mlxsw_afk_key_info_subset(chunk->region->key_info, |
| elusage))) |
| return ERR_PTR(-EINVAL); |
| chunk->ref_count++; |
| return chunk; |
| } |
| return mlxsw_sp_acl_tcam_chunk_create(mlxsw_sp, group, |
| priority, elusage); |
| } |
| |
| static void mlxsw_sp_acl_tcam_chunk_put(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_chunk *chunk) |
| { |
| if (--chunk->ref_count) |
| return; |
| mlxsw_sp_acl_tcam_chunk_destroy(mlxsw_sp, chunk); |
| } |
| |
| static int mlxsw_sp_acl_tcam_entry_add(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_group *group, |
| struct mlxsw_sp_acl_tcam_entry *entry, |
| struct mlxsw_sp_acl_rule_info *rulei) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk; |
| struct mlxsw_sp_acl_tcam_region *region; |
| int err; |
| |
| chunk = mlxsw_sp_acl_tcam_chunk_get(mlxsw_sp, group, rulei->priority, |
| &rulei->values.elusage); |
| if (IS_ERR(chunk)) |
| return PTR_ERR(chunk); |
| |
| region = chunk->region; |
| err = parman_item_add(region->parman, &chunk->parman_prio, |
| &entry->parman_item); |
| if (err) |
| goto err_parman_item_add; |
| |
| err = mlxsw_sp_acl_tcam_region_entry_insert(mlxsw_sp, region, |
| entry->parman_item.index, |
| rulei); |
| if (err) |
| goto err_rule_insert; |
| entry->chunk = chunk; |
| |
| return 0; |
| |
| err_rule_insert: |
| parman_item_remove(region->parman, &chunk->parman_prio, |
| &entry->parman_item); |
| err_parman_item_add: |
| mlxsw_sp_acl_tcam_chunk_put(mlxsw_sp, chunk); |
| return err; |
| } |
| |
| static void mlxsw_sp_acl_tcam_entry_del(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_entry *entry) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk = entry->chunk; |
| struct mlxsw_sp_acl_tcam_region *region = chunk->region; |
| |
| mlxsw_sp_acl_tcam_region_entry_remove(mlxsw_sp, region, |
| entry->parman_item.index); |
| parman_item_remove(region->parman, &chunk->parman_prio, |
| &entry->parman_item); |
| mlxsw_sp_acl_tcam_chunk_put(mlxsw_sp, chunk); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_entry_activity_get(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_acl_tcam_entry *entry, |
| bool *activity) |
| { |
| struct mlxsw_sp_acl_tcam_chunk *chunk = entry->chunk; |
| struct mlxsw_sp_acl_tcam_region *region = chunk->region; |
| |
| return mlxsw_sp_acl_tcam_region_entry_activity_get(mlxsw_sp, region, |
| entry->parman_item.index, |
| activity); |
| } |
| |
| static const enum mlxsw_afk_element mlxsw_sp_acl_tcam_pattern_ipv4[] = { |
| MLXSW_AFK_ELEMENT_SRC_SYS_PORT, |
| MLXSW_AFK_ELEMENT_DMAC, |
| MLXSW_AFK_ELEMENT_SMAC, |
| MLXSW_AFK_ELEMENT_ETHERTYPE, |
| MLXSW_AFK_ELEMENT_IP_PROTO, |
| MLXSW_AFK_ELEMENT_SRC_IP4, |
| MLXSW_AFK_ELEMENT_DST_IP4, |
| MLXSW_AFK_ELEMENT_DST_L4_PORT, |
| MLXSW_AFK_ELEMENT_SRC_L4_PORT, |
| MLXSW_AFK_ELEMENT_VID, |
| MLXSW_AFK_ELEMENT_PCP, |
| MLXSW_AFK_ELEMENT_TCP_FLAGS, |
| MLXSW_AFK_ELEMENT_IP_TTL_, |
| MLXSW_AFK_ELEMENT_IP_ECN, |
| MLXSW_AFK_ELEMENT_IP_DSCP, |
| }; |
| |
| static const enum mlxsw_afk_element mlxsw_sp_acl_tcam_pattern_ipv6[] = { |
| MLXSW_AFK_ELEMENT_ETHERTYPE, |
| MLXSW_AFK_ELEMENT_IP_PROTO, |
| MLXSW_AFK_ELEMENT_SRC_IP6_HI, |
| MLXSW_AFK_ELEMENT_SRC_IP6_LO, |
| MLXSW_AFK_ELEMENT_DST_IP6_HI, |
| MLXSW_AFK_ELEMENT_DST_IP6_LO, |
| MLXSW_AFK_ELEMENT_DST_L4_PORT, |
| MLXSW_AFK_ELEMENT_SRC_L4_PORT, |
| }; |
| |
| static const struct mlxsw_sp_acl_tcam_pattern mlxsw_sp_acl_tcam_patterns[] = { |
| { |
| .elements = mlxsw_sp_acl_tcam_pattern_ipv4, |
| .elements_count = ARRAY_SIZE(mlxsw_sp_acl_tcam_pattern_ipv4), |
| }, |
| { |
| .elements = mlxsw_sp_acl_tcam_pattern_ipv6, |
| .elements_count = ARRAY_SIZE(mlxsw_sp_acl_tcam_pattern_ipv6), |
| }, |
| }; |
| |
| #define MLXSW_SP_ACL_TCAM_PATTERNS_COUNT \ |
| ARRAY_SIZE(mlxsw_sp_acl_tcam_patterns) |
| |
| struct mlxsw_sp_acl_tcam_flower_ruleset { |
| struct mlxsw_sp_acl_tcam_group group; |
| }; |
| |
| struct mlxsw_sp_acl_tcam_flower_rule { |
| struct mlxsw_sp_acl_tcam_entry entry; |
| }; |
| |
| static int |
| mlxsw_sp_acl_tcam_flower_ruleset_add(struct mlxsw_sp *mlxsw_sp, |
| void *priv, void *ruleset_priv) |
| { |
| struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; |
| struct mlxsw_sp_acl_tcam *tcam = priv; |
| |
| return mlxsw_sp_acl_tcam_group_add(mlxsw_sp, tcam, &ruleset->group, |
| mlxsw_sp_acl_tcam_patterns, |
| MLXSW_SP_ACL_TCAM_PATTERNS_COUNT); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_flower_ruleset_del(struct mlxsw_sp *mlxsw_sp, |
| void *ruleset_priv) |
| { |
| struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; |
| |
| mlxsw_sp_acl_tcam_group_del(mlxsw_sp, &ruleset->group); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_flower_ruleset_bind(struct mlxsw_sp *mlxsw_sp, |
| void *ruleset_priv, |
| struct net_device *dev, bool ingress) |
| { |
| struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; |
| |
| return mlxsw_sp_acl_tcam_group_bind(mlxsw_sp, &ruleset->group, |
| dev, ingress); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_flower_ruleset_unbind(struct mlxsw_sp *mlxsw_sp, |
| void *ruleset_priv) |
| { |
| struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; |
| |
| mlxsw_sp_acl_tcam_group_unbind(mlxsw_sp, &ruleset->group); |
| } |
| |
| static u16 |
| mlxsw_sp_acl_tcam_flower_ruleset_group_id(void *ruleset_priv) |
| { |
| struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; |
| |
| return mlxsw_sp_acl_tcam_group_id(&ruleset->group); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_flower_rule_add(struct mlxsw_sp *mlxsw_sp, |
| void *ruleset_priv, void *rule_priv, |
| struct mlxsw_sp_acl_rule_info *rulei) |
| { |
| struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv; |
| struct mlxsw_sp_acl_tcam_flower_rule *rule = rule_priv; |
| |
| return mlxsw_sp_acl_tcam_entry_add(mlxsw_sp, &ruleset->group, |
| &rule->entry, rulei); |
| } |
| |
| static void |
| mlxsw_sp_acl_tcam_flower_rule_del(struct mlxsw_sp *mlxsw_sp, void *rule_priv) |
| { |
| struct mlxsw_sp_acl_tcam_flower_rule *rule = rule_priv; |
| |
| mlxsw_sp_acl_tcam_entry_del(mlxsw_sp, &rule->entry); |
| } |
| |
| static int |
| mlxsw_sp_acl_tcam_flower_rule_activity_get(struct mlxsw_sp *mlxsw_sp, |
| void *rule_priv, bool *activity) |
| { |
| struct mlxsw_sp_acl_tcam_flower_rule *rule = rule_priv; |
| |
| return mlxsw_sp_acl_tcam_entry_activity_get(mlxsw_sp, &rule->entry, |
| activity); |
| } |
| |
| static const struct mlxsw_sp_acl_profile_ops mlxsw_sp_acl_tcam_flower_ops = { |
| .ruleset_priv_size = sizeof(struct mlxsw_sp_acl_tcam_flower_ruleset), |
| .ruleset_add = mlxsw_sp_acl_tcam_flower_ruleset_add, |
| .ruleset_del = mlxsw_sp_acl_tcam_flower_ruleset_del, |
| .ruleset_bind = mlxsw_sp_acl_tcam_flower_ruleset_bind, |
| .ruleset_unbind = mlxsw_sp_acl_tcam_flower_ruleset_unbind, |
| .ruleset_group_id = mlxsw_sp_acl_tcam_flower_ruleset_group_id, |
| .rule_priv_size = sizeof(struct mlxsw_sp_acl_tcam_flower_rule), |
| .rule_add = mlxsw_sp_acl_tcam_flower_rule_add, |
| .rule_del = mlxsw_sp_acl_tcam_flower_rule_del, |
| .rule_activity_get = mlxsw_sp_acl_tcam_flower_rule_activity_get, |
| }; |
| |
| static const struct mlxsw_sp_acl_profile_ops * |
| mlxsw_sp_acl_tcam_profile_ops_arr[] = { |
| [MLXSW_SP_ACL_PROFILE_FLOWER] = &mlxsw_sp_acl_tcam_flower_ops, |
| }; |
| |
| static const struct mlxsw_sp_acl_profile_ops * |
| mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp, |
| enum mlxsw_sp_acl_profile profile) |
| { |
| const struct mlxsw_sp_acl_profile_ops *ops; |
| |
| if (WARN_ON(profile >= ARRAY_SIZE(mlxsw_sp_acl_tcam_profile_ops_arr))) |
| return NULL; |
| ops = mlxsw_sp_acl_tcam_profile_ops_arr[profile]; |
| if (WARN_ON(!ops)) |
| return NULL; |
| return ops; |
| } |
| |
| const struct mlxsw_sp_acl_ops mlxsw_sp_acl_tcam_ops = { |
| .priv_size = sizeof(struct mlxsw_sp_acl_tcam), |
| .init = mlxsw_sp_acl_tcam_init, |
| .fini = mlxsw_sp_acl_tcam_fini, |
| .profile_ops = mlxsw_sp_acl_tcam_profile_ops, |
| }; |