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
53 struct mlx5dr_table *
54 mlx5dr_table_create(struct mlx5dr_domain *domain, u32 level, u32 flags);
55
56 int mlx5dr_table_destroy(struct mlx5dr_table *table);
57
58 u32 mlx5dr_table_get_id(struct mlx5dr_table *table);
59
60 struct mlx5dr_matcher *
61 mlx5dr_matcher_create(struct mlx5dr_table *table,
62 u32 priority,
63 u8 match_criteria_enable,
64 struct mlx5dr_match_parameters *mask);
65
66 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher);
67
68 struct mlx5dr_rule *
69 mlx5dr_rule_create(struct mlx5dr_matcher *matcher,
70 struct mlx5dr_match_parameters *value,
71 size_t num_actions,
72 struct mlx5dr_action *actions[],
73 u32 flow_source);
74
75 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule);
76
77 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl,
78 struct mlx5dr_action *action);
79
80 struct mlx5dr_action *
81 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num);
82
83 struct mlx5dr_action *
84 mlx5dr_action_create_dest_table(struct mlx5dr_table *table);
85
86 struct mlx5dr_action *
87 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain,
88 struct mlx5_flow_table *ft);
89
90 struct mlx5dr_action *
91 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain,
92 u32 vport, u8 vhca_id_valid,
93 u16 vhca_id);
94
95 struct mlx5dr_action *
96 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn,
97 struct mlx5dr_action_dest *dests,
98 u32 num_of_dests,
99 bool ignore_flow_level,
100 u32 flow_source);
101
102 struct mlx5dr_action *mlx5dr_action_create_drop(void);
103
104 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value);
105
106 struct mlx5dr_action *
107 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id);
108
109 struct mlx5dr_action *
110 mlx5dr_action_create_flow_counter(u32 counter_id);
111
112 struct mlx5dr_action *
113 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn,
114 enum mlx5dr_action_reformat_type reformat_type,
115 u8 reformat_param_0,
116 u8 reformat_param_1,
117 size_t data_sz,
118 void *data);
119
120 struct mlx5dr_action *
121 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain,
122 u32 flags,
123 size_t actions_sz,
124 __be64 actions[]);
125
126 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void);
127
128 struct mlx5dr_action *
129 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr);
130
131 int mlx5dr_action_destroy(struct mlx5dr_action *action);
132
133 static inline bool
mlx5dr_is_supported(struct mlx5_core_dev * dev)134 mlx5dr_is_supported(struct mlx5_core_dev *dev)
135 {
136 return MLX5_CAP_GEN(dev, roce) &&
137 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) ||
138 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) &&
139 (MLX5_CAP_GEN(dev, steering_format_version) <=
140 MLX5_STEERING_FORMAT_CONNECTX_6DX)));
141 }
142
143 /* buddy functions & structure */
144
145 struct mlx5dr_icm_mr;
146
147 struct mlx5dr_icm_buddy_mem {
148 unsigned long **bitmap;
149 unsigned int *num_free;
150 u32 max_order;
151 struct list_head list_node;
152 struct mlx5dr_icm_mr *icm_mr;
153 struct mlx5dr_icm_pool *pool;
154
155 /* This is the list of used chunks. HW may be accessing this memory */
156 struct list_head used_list;
157 u64 used_memory;
158
159 /* Hardware may be accessing this memory but at some future,
160 * undetermined time, it might cease to do so.
161 * sync_ste command sets them free.
162 */
163 struct list_head hot_list;
164
165 /* Memory optimisation */
166 struct mlx5dr_ste *ste_arr;
167 struct list_head *miss_list;
168 u8 *hw_ste_arr;
169 };
170
171 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy,
172 unsigned int max_order);
173 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy);
174 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy,
175 unsigned int order,
176 unsigned int *segment);
177 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy,
178 unsigned int seg, unsigned int order);
179
180 #endif /* _MLX5DR_H_ */
181