1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2019, Mellanox Technologies */
3
4 #ifndef _MLX5DR_H_
5 #define _MLX5DR_H_
6
7 struct mlx5dr_domain;
8 struct mlx5dr_table;
9 struct mlx5dr_matcher;
10 struct mlx5dr_rule;
11 struct mlx5dr_action;
12
13 enum mlx5dr_domain_type {
14 MLX5DR_DOMAIN_TYPE_NIC_RX,
15 MLX5DR_DOMAIN_TYPE_NIC_TX,
16 MLX5DR_DOMAIN_TYPE_FDB,
17 };
18
19 enum mlx5dr_domain_sync_flags {
20 MLX5DR_DOMAIN_SYNC_FLAGS_SW = 1 << 0,
21 MLX5DR_DOMAIN_SYNC_FLAGS_HW = 1 << 1,
22 };
23
24 enum mlx5dr_action_reformat_type {
25 DR_ACTION_REFORMAT_TYP_TNL_L2_TO_L2,
26 DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L2,
27 DR_ACTION_REFORMAT_TYP_TNL_L3_TO_L2,
28 DR_ACTION_REFORMAT_TYP_L2_TO_TNL_L3,
29 DR_ACTION_REFORMAT_TYP_INSERT_HDR,
30 DR_ACTION_REFORMAT_TYP_REMOVE_HDR,
31 };
32
33 struct mlx5dr_match_parameters {
34 size_t match_sz;
35 u64 *match_buf; /* Device spec format */
36 };
37
38 struct mlx5dr_action_dest {
39 struct mlx5dr_action *dest;
40 struct mlx5dr_action *reformat;
41 };
42
43 struct mlx5dr_domain *
44 mlx5dr_domain_create(struct mlx5_core_dev *mdev, enum mlx5dr_domain_type type);
45
46 int mlx5dr_domain_destroy(struct mlx5dr_domain *domain);
47
48 int mlx5dr_domain_sync(struct mlx5dr_domain *domain, u32 flags);
49
50 void mlx5dr_domain_set_peer(struct mlx5dr_domain *dmn,
51 struct mlx5dr_domain *peer_dmn,
52 u16 peer_vhca_id);
53
54 struct mlx5dr_table *
55 mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags,
56 u16 uid);
57
58 struct mlx5dr_table *
59 mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft);
60
61 int mlx5dr_table_destroy(struct mlx5dr_table *table);
62
63 u32 mlx5dr_table_get_id(struct mlx5dr_table *table);
64
65 struct mlx5dr_matcher *
66 mlx5dr_matcher_create(struct mlx5dr_table *table,
67 u32 priority,
68 u8 match_criteria_enable,
69 struct mlx5dr_match_parameters *mask);
70
71 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher);
72
73 struct mlx5dr_rule *
74 mlx5dr_rule_create(struct mlx5dr_matcher *matcher,
75 struct mlx5dr_match_parameters *value,
76 size_t num_actions,
77 struct mlx5dr_action *actions[],
78 u32 flow_source);
79
80 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule);
81
82 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl,
83 struct mlx5dr_action *action);
84
85 struct mlx5dr_action *
86 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num);
87
88 struct mlx5dr_action *
89 mlx5dr_action_create_dest_table(struct mlx5dr_table *table);
90
91 struct mlx5dr_action *
92 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain,
93 struct mlx5_flow_table *ft);
94
95 struct mlx5dr_action *
96 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain,
97 u16 vport, u8 vhca_id_valid,
98 u16 vhca_id);
99
100 struct mlx5dr_action *
101 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn,
102 struct mlx5dr_action_dest *dests,
103 u32 num_of_dests,
104 bool ignore_flow_level,
105 u32 flow_source);
106
107 struct mlx5dr_action *mlx5dr_action_create_drop(void);
108
109 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value);
110
111 struct mlx5dr_action *
112 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id);
113
114 struct mlx5dr_action *
115 mlx5dr_action_create_flow_counter(u32 counter_id);
116
117 struct mlx5dr_action *
118 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn,
119 enum mlx5dr_action_reformat_type reformat_type,
120 u8 reformat_param_0,
121 u8 reformat_param_1,
122 size_t data_sz,
123 void *data);
124
125 struct mlx5dr_action *
126 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain,
127 u32 flags,
128 size_t actions_sz,
129 __be64 actions[]);
130
131 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void);
132
133 struct mlx5dr_action *
134 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr);
135
136 struct mlx5dr_action *
137 mlx5dr_action_create_aso(struct mlx5dr_domain *dmn,
138 u32 obj_id,
139 u8 return_reg_id,
140 u8 aso_type,
141 u8 init_color,
142 u8 meter_id);
143
144 struct mlx5dr_action *
145 mlx5dr_action_create_dest_match_range(struct mlx5dr_domain *dmn,
146 u32 field,
147 struct mlx5_flow_table *hit_ft,
148 struct mlx5_flow_table *miss_ft,
149 u32 min,
150 u32 max);
151
152 int mlx5dr_action_destroy(struct mlx5dr_action *action);
153
154 u32 mlx5dr_action_get_pkt_reformat_id(struct mlx5dr_action *action);
155
156 int mlx5dr_definer_get(struct mlx5dr_domain *dmn, u16 format_id,
157 u8 *dw_selectors, u8 *byte_selectors,
158 u8 *match_mask, u32 *definer_id);
159 void mlx5dr_definer_put(struct mlx5dr_domain *dmn, u32 definer_id);
160
161 static inline bool
mlx5dr_is_supported(struct mlx5_core_dev * dev)162 mlx5dr_is_supported(struct mlx5_core_dev *dev)
163 {
164 return MLX5_CAP_GEN(dev, roce) &&
165 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) ||
166 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) &&
167 (MLX5_CAP_GEN(dev, steering_format_version) <=
168 MLX5_STEERING_FORMAT_CONNECTX_7)));
169 }
170
171 /* buddy functions & structure */
172
173 struct mlx5dr_icm_mr;
174
175 struct mlx5dr_icm_buddy_mem {
176 unsigned long **bitmap;
177 unsigned int *num_free;
178 u32 max_order;
179 struct list_head list_node;
180 struct mlx5dr_icm_mr *icm_mr;
181 struct mlx5dr_icm_pool *pool;
182
183 /* Amount of memory in used chunks - HW may be accessing this memory */
184 u64 used_memory;
185
186 /* Memory optimisation */
187 struct mlx5dr_ste *ste_arr;
188 struct list_head *miss_list;
189 u8 *hw_ste_arr;
190 };
191
192 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy,
193 unsigned int max_order);
194 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy);
195 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy,
196 unsigned int order,
197 unsigned int *segment);
198 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy,
199 unsigned int seg, unsigned int order);
200
201 #endif /* _MLX5DR_H_ */
202