1 // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB 2 /* Copyright (c) 2019 Mellanox Technologies. */ 3 4 #include <linux/types.h> 5 #include "dr_types.h" 6 7 struct mlx5dr_fw_recalc_cs_ft * 8 mlx5dr_fw_create_recalc_cs_ft(struct mlx5dr_domain *dmn, u32 vport_num) 9 { 10 struct mlx5dr_fw_recalc_cs_ft *recalc_cs_ft; 11 u32 table_id, group_id, modify_hdr_id; 12 u64 rx_icm_addr, modify_ttl_action; 13 int ret; 14 15 recalc_cs_ft = kzalloc(sizeof(*recalc_cs_ft), GFP_KERNEL); 16 if (!recalc_cs_ft) 17 return NULL; 18 19 ret = mlx5dr_cmd_create_flow_table(dmn->mdev, MLX5_FLOW_TABLE_TYPE_FDB, 20 0, 0, dmn->info.caps.max_ft_level - 1, 21 false, true, &rx_icm_addr, &table_id); 22 if (ret) { 23 mlx5dr_err(dmn, "Failed creating TTL W/A FW flow table %d\n", ret); 24 goto free_ttl_tbl; 25 } 26 27 ret = mlx5dr_cmd_create_empty_flow_group(dmn->mdev, 28 MLX5_FLOW_TABLE_TYPE_FDB, 29 table_id, &group_id); 30 if (ret) { 31 mlx5dr_err(dmn, "Failed creating TTL W/A FW flow group %d\n", ret); 32 goto destroy_flow_table; 33 } 34 35 /* Modify TTL action by adding zero to trigger CS recalculation */ 36 modify_ttl_action = 0; 37 MLX5_SET(set_action_in, &modify_ttl_action, action_type, MLX5_ACTION_TYPE_ADD); 38 MLX5_SET(set_action_in, &modify_ttl_action, field, MLX5_ACTION_IN_FIELD_OUT_IP_TTL); 39 40 ret = mlx5dr_cmd_alloc_modify_header(dmn->mdev, MLX5_FLOW_TABLE_TYPE_FDB, 1, 41 &modify_ttl_action, 42 &modify_hdr_id); 43 if (ret) { 44 mlx5dr_err(dmn, "Failed modify header TTL %d\n", ret); 45 goto destroy_flow_group; 46 } 47 48 ret = mlx5dr_cmd_set_fte_modify_and_vport(dmn->mdev, 49 MLX5_FLOW_TABLE_TYPE_FDB, 50 table_id, group_id, modify_hdr_id, 51 vport_num); 52 if (ret) { 53 mlx5dr_err(dmn, "Failed setting TTL W/A flow table entry %d\n", ret); 54 goto dealloc_modify_header; 55 } 56 57 recalc_cs_ft->modify_hdr_id = modify_hdr_id; 58 recalc_cs_ft->rx_icm_addr = rx_icm_addr; 59 recalc_cs_ft->table_id = table_id; 60 recalc_cs_ft->group_id = group_id; 61 62 return recalc_cs_ft; 63 64 dealloc_modify_header: 65 mlx5dr_cmd_dealloc_modify_header(dmn->mdev, modify_hdr_id); 66 destroy_flow_group: 67 mlx5dr_cmd_destroy_flow_group(dmn->mdev, 68 MLX5_FLOW_TABLE_TYPE_FDB, 69 table_id, group_id); 70 destroy_flow_table: 71 mlx5dr_cmd_destroy_flow_table(dmn->mdev, table_id, MLX5_FLOW_TABLE_TYPE_FDB); 72 free_ttl_tbl: 73 kfree(recalc_cs_ft); 74 return NULL; 75 } 76 77 void mlx5dr_fw_destroy_recalc_cs_ft(struct mlx5dr_domain *dmn, 78 struct mlx5dr_fw_recalc_cs_ft *recalc_cs_ft) 79 { 80 mlx5dr_cmd_del_flow_table_entry(dmn->mdev, 81 MLX5_FLOW_TABLE_TYPE_FDB, 82 recalc_cs_ft->table_id); 83 mlx5dr_cmd_dealloc_modify_header(dmn->mdev, recalc_cs_ft->modify_hdr_id); 84 mlx5dr_cmd_destroy_flow_group(dmn->mdev, 85 MLX5_FLOW_TABLE_TYPE_FDB, 86 recalc_cs_ft->table_id, 87 recalc_cs_ft->group_id); 88 mlx5dr_cmd_destroy_flow_table(dmn->mdev, 89 recalc_cs_ft->table_id, 90 MLX5_FLOW_TABLE_TYPE_FDB); 91 92 kfree(recalc_cs_ft); 93 } 94