diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c new file mode 100644 index 000000000..f05ef0cd5 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_fw.c @@ -0,0 +1,171 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) 2019 Mellanox Technologies. */ + +#include <linux/types.h> +#include "dr_types.h" + +struct mlx5dr_fw_recalc_cs_ft * +mlx5dr_fw_create_recalc_cs_ft(struct mlx5dr_domain *dmn, u16 vport_num) +{ + struct mlx5dr_cmd_create_flow_table_attr ft_attr = {}; + struct mlx5dr_fw_recalc_cs_ft *recalc_cs_ft; + u32 table_id, group_id, modify_hdr_id; + u64 rx_icm_addr, modify_ttl_action; + int ret; + + recalc_cs_ft = kzalloc(sizeof(*recalc_cs_ft), GFP_KERNEL); + if (!recalc_cs_ft) + return NULL; + + ft_attr.table_type = MLX5_FLOW_TABLE_TYPE_FDB; + ft_attr.level = dmn->info.caps.max_ft_level - 1; + ft_attr.term_tbl = true; + + ret = mlx5dr_cmd_create_flow_table(dmn->mdev, + &ft_attr, + &rx_icm_addr, + &table_id); + if (ret) { + mlx5dr_err(dmn, "Failed creating TTL W/A FW flow table %d\n", ret); + goto free_ttl_tbl; + } + + ret = mlx5dr_cmd_create_empty_flow_group(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + table_id, &group_id); + if (ret) { + mlx5dr_err(dmn, "Failed creating TTL W/A FW flow group %d\n", ret); + goto destroy_flow_table; + } + + /* Modify TTL action by adding zero to trigger CS recalculation */ + modify_ttl_action = 0; + MLX5_SET(set_action_in, &modify_ttl_action, action_type, MLX5_ACTION_TYPE_ADD); + MLX5_SET(set_action_in, &modify_ttl_action, field, MLX5_ACTION_IN_FIELD_OUT_IP_TTL); + + ret = mlx5dr_cmd_alloc_modify_header(dmn->mdev, MLX5_FLOW_TABLE_TYPE_FDB, 1, + &modify_ttl_action, + &modify_hdr_id); + if (ret) { + mlx5dr_err(dmn, "Failed modify header TTL %d\n", ret); + goto destroy_flow_group; + } + + ret = mlx5dr_cmd_set_fte_modify_and_vport(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + table_id, group_id, modify_hdr_id, + vport_num); + if (ret) { + mlx5dr_err(dmn, "Failed setting TTL W/A flow table entry %d\n", ret); + goto dealloc_modify_header; + } + + recalc_cs_ft->modify_hdr_id = modify_hdr_id; + recalc_cs_ft->rx_icm_addr = rx_icm_addr; + recalc_cs_ft->table_id = table_id; + recalc_cs_ft->group_id = group_id; + + return recalc_cs_ft; + +dealloc_modify_header: + mlx5dr_cmd_dealloc_modify_header(dmn->mdev, modify_hdr_id); +destroy_flow_group: + mlx5dr_cmd_destroy_flow_group(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + table_id, group_id); +destroy_flow_table: + mlx5dr_cmd_destroy_flow_table(dmn->mdev, table_id, MLX5_FLOW_TABLE_TYPE_FDB); +free_ttl_tbl: + kfree(recalc_cs_ft); + return NULL; +} + +void mlx5dr_fw_destroy_recalc_cs_ft(struct mlx5dr_domain *dmn, + struct mlx5dr_fw_recalc_cs_ft *recalc_cs_ft) +{ + mlx5dr_cmd_del_flow_table_entry(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + recalc_cs_ft->table_id); + mlx5dr_cmd_dealloc_modify_header(dmn->mdev, recalc_cs_ft->modify_hdr_id); + mlx5dr_cmd_destroy_flow_group(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + recalc_cs_ft->table_id, + recalc_cs_ft->group_id); + mlx5dr_cmd_destroy_flow_table(dmn->mdev, + recalc_cs_ft->table_id, + MLX5_FLOW_TABLE_TYPE_FDB); + + kfree(recalc_cs_ft); +} + +int mlx5dr_fw_create_md_tbl(struct mlx5dr_domain *dmn, + struct mlx5dr_cmd_flow_destination_hw_info *dest, + int num_dest, + bool reformat_req, + u32 *tbl_id, + u32 *group_id, + bool ignore_flow_level, + u32 flow_source) +{ + struct mlx5dr_cmd_create_flow_table_attr ft_attr = {}; + struct mlx5dr_cmd_fte_info fte_info = {}; + u32 val[MLX5_ST_SZ_DW_MATCH_PARAM] = {}; + struct mlx5dr_cmd_ft_info ft_info = {}; + int ret; + + ft_attr.table_type = MLX5_FLOW_TABLE_TYPE_FDB; + ft_attr.level = min_t(int, dmn->info.caps.max_ft_level - 2, + MLX5_FT_MAX_MULTIPATH_LEVEL); + ft_attr.reformat_en = reformat_req; + ft_attr.decap_en = reformat_req; + + ret = mlx5dr_cmd_create_flow_table(dmn->mdev, &ft_attr, NULL, tbl_id); + if (ret) { + mlx5dr_err(dmn, "Failed creating multi dest FW flow table %d\n", ret); + return ret; + } + + ret = mlx5dr_cmd_create_empty_flow_group(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + *tbl_id, group_id); + if (ret) { + mlx5dr_err(dmn, "Failed creating multi dest FW flow group %d\n", ret); + goto free_flow_table; + } + + ft_info.id = *tbl_id; + ft_info.type = FS_FT_FDB; + fte_info.action.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST; + fte_info.dests_size = num_dest; + fte_info.val = val; + fte_info.dest_arr = dest; + fte_info.ignore_flow_level = ignore_flow_level; + fte_info.flow_context.flow_source = flow_source; + + ret = mlx5dr_cmd_set_fte(dmn->mdev, 0, 0, &ft_info, *group_id, &fte_info); + if (ret) { + mlx5dr_err(dmn, "Failed setting fte into table %d\n", ret); + goto free_flow_group; + } + + return 0; + +free_flow_group: + mlx5dr_cmd_destroy_flow_group(dmn->mdev, MLX5_FLOW_TABLE_TYPE_FDB, + *tbl_id, *group_id); +free_flow_table: + mlx5dr_cmd_destroy_flow_table(dmn->mdev, *tbl_id, + MLX5_FLOW_TABLE_TYPE_FDB); + return ret; +} + +void mlx5dr_fw_destroy_md_tbl(struct mlx5dr_domain *dmn, + u32 tbl_id, u32 group_id) +{ + mlx5dr_cmd_del_flow_table_entry(dmn->mdev, FS_FT_FDB, tbl_id); + mlx5dr_cmd_destroy_flow_group(dmn->mdev, + MLX5_FLOW_TABLE_TYPE_FDB, + tbl_id, group_id); + mlx5dr_cmd_destroy_flow_table(dmn->mdev, tbl_id, + MLX5_FLOW_TABLE_TYPE_FDB); +} |