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
101 struct mlx5dr_action *mlx5dr_action_create_drop(void);
102
103 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value);
104
105 struct mlx5dr_action *
106 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id);
107
108 struct mlx5dr_action *
109 mlx5dr_action_create_flow_counter(u32 counter_id);
110
111 struct mlx5dr_action *
112 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn,
113 enum mlx5dr_action_reformat_type reformat_type,
114 u8 reformat_param_0,
115 u8 reformat_param_1,
116 size_t data_sz,
117 void *data);
118
119 struct mlx5dr_action *
120 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain,
121 u32 flags,
122 size_t actions_sz,
123 __be64 actions[]);
124
125 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void);
126
127 struct mlx5dr_action *
128 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr);
129
130 int mlx5dr_action_destroy(struct mlx5dr_action *action);
131
132 static inline bool
mlx5dr_is_supported(struct mlx5_core_dev * dev)133 mlx5dr_is_supported(struct mlx5_core_dev *dev)
134 {
135 return MLX5_CAP_GEN(dev, roce) &&
136 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) ||
137 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) &&
138 (MLX5_CAP_GEN(dev, steering_format_version) <=
139 MLX5_STEERING_FORMAT_CONNECTX_6DX)));
140 }
141
142 /* buddy functions & structure */
143
144 struct mlx5dr_icm_mr;
145
146 struct mlx5dr_icm_buddy_mem {
147 unsigned long **bitmap;
148 unsigned int *num_free;
149 u32 max_order;
150 struct list_head list_node;
151 struct mlx5dr_icm_mr *icm_mr;
152 struct mlx5dr_icm_pool *pool;
153
154 /* This is the list of used chunks. HW may be accessing this memory */
155 struct list_head used_list;
156 u64 used_memory;
157
158 /* Hardware may be accessing this memory but at some future,
159 * undetermined time, it might cease to do so.
160 * sync_ste command sets them free.
161 */
162 struct list_head hot_list;
163 };
164
165 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy,
166 unsigned int max_order);
167 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy);
168 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy,
169 unsigned int order,
170 unsigned int *segment);
171 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy,
172 unsigned int seg, unsigned int order);
173
174 #endif /* _MLX5DR_H_ */
175
