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 struct mlx5dr_table *
57 mlx5dr_table_get_from_fs_ft(struct mlx5_flow_table *ft);
58
59 int mlx5dr_table_destroy(struct mlx5dr_table *table);
60
61 u32 mlx5dr_table_get_id(struct mlx5dr_table *table);
62
63 struct mlx5dr_matcher *
64 mlx5dr_matcher_create(struct mlx5dr_table *table,
65 u32 priority,
66 u8 match_criteria_enable,
67 struct mlx5dr_match_parameters *mask);
68
69 int mlx5dr_matcher_destroy(struct mlx5dr_matcher *matcher);
70
71 struct mlx5dr_rule *
72 mlx5dr_rule_create(struct mlx5dr_matcher *matcher,
73 struct mlx5dr_match_parameters *value,
74 size_t num_actions,
75 struct mlx5dr_action *actions[],
76 u32 flow_source);
77
78 int mlx5dr_rule_destroy(struct mlx5dr_rule *rule);
79
80 int mlx5dr_table_set_miss_action(struct mlx5dr_table *tbl,
81 struct mlx5dr_action *action);
82
83 struct mlx5dr_action *
84 mlx5dr_action_create_dest_table_num(struct mlx5dr_domain *dmn, u32 table_num);
85
86 struct mlx5dr_action *
87 mlx5dr_action_create_dest_table(struct mlx5dr_table *table);
88
89 struct mlx5dr_action *
90 mlx5dr_action_create_dest_flow_fw_table(struct mlx5dr_domain *domain,
91 struct mlx5_flow_table *ft);
92
93 struct mlx5dr_action *
94 mlx5dr_action_create_dest_vport(struct mlx5dr_domain *domain,
95 u16 vport, u8 vhca_id_valid,
96 u16 vhca_id);
97
98 struct mlx5dr_action *
99 mlx5dr_action_create_mult_dest_tbl(struct mlx5dr_domain *dmn,
100 struct mlx5dr_action_dest *dests,
101 u32 num_of_dests,
102 bool ignore_flow_level,
103 u32 flow_source);
104
105 struct mlx5dr_action *mlx5dr_action_create_drop(void);
106
107 struct mlx5dr_action *mlx5dr_action_create_tag(u32 tag_value);
108
109 struct mlx5dr_action *
110 mlx5dr_action_create_flow_sampler(struct mlx5dr_domain *dmn, u32 sampler_id);
111
112 struct mlx5dr_action *
113 mlx5dr_action_create_flow_counter(u32 counter_id);
114
115 struct mlx5dr_action *
116 mlx5dr_action_create_packet_reformat(struct mlx5dr_domain *dmn,
117 enum mlx5dr_action_reformat_type reformat_type,
118 u8 reformat_param_0,
119 u8 reformat_param_1,
120 size_t data_sz,
121 void *data);
122
123 struct mlx5dr_action *
124 mlx5dr_action_create_modify_header(struct mlx5dr_domain *domain,
125 u32 flags,
126 size_t actions_sz,
127 __be64 actions[]);
128
129 struct mlx5dr_action *mlx5dr_action_create_pop_vlan(void);
130
131 struct mlx5dr_action *
132 mlx5dr_action_create_push_vlan(struct mlx5dr_domain *domain, __be32 vlan_hdr);
133
134 int mlx5dr_action_destroy(struct mlx5dr_action *action);
135
136 static inline bool
mlx5dr_is_supported(struct mlx5_core_dev * dev)137 mlx5dr_is_supported(struct mlx5_core_dev *dev)
138 {
139 return MLX5_CAP_GEN(dev, roce) &&
140 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner) ||
141 (MLX5_CAP_ESW_FLOWTABLE_FDB(dev, sw_owner_v2) &&
142 (MLX5_CAP_GEN(dev, steering_format_version) <=
143 MLX5_STEERING_FORMAT_CONNECTX_7)));
144 }
145
146 /* buddy functions & structure */
147
148 struct mlx5dr_icm_mr;
149
150 struct mlx5dr_icm_buddy_mem {
151 unsigned long **bitmap;
152 unsigned int *num_free;
153 u32 max_order;
154 struct list_head list_node;
155 struct mlx5dr_icm_mr *icm_mr;
156 struct mlx5dr_icm_pool *pool;
157
158 /* This is the list of used chunks. HW may be accessing this memory */
159 struct list_head used_list;
160 u64 used_memory;
161
162 /* Hardware may be accessing this memory but at some future,
163 * undetermined time, it might cease to do so.
164 * sync_ste command sets them free.
165 */
166 struct list_head hot_list;
167
168 /* Memory optimisation */
169 struct mlx5dr_ste *ste_arr;
170 struct list_head *miss_list;
171 u8 *hw_ste_arr;
172 };
173
174 int mlx5dr_buddy_init(struct mlx5dr_icm_buddy_mem *buddy,
175 unsigned int max_order);
176 void mlx5dr_buddy_cleanup(struct mlx5dr_icm_buddy_mem *buddy);
177 int mlx5dr_buddy_alloc_mem(struct mlx5dr_icm_buddy_mem *buddy,
178 unsigned int order,
179 unsigned int *segment);
180 void mlx5dr_buddy_free_mem(struct mlx5dr_icm_buddy_mem *buddy,
181 unsigned int seg, unsigned int order);
182
183 #endif /* _MLX5DR_H_ */
184