1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2018 Mellanox Technologies. */
3
4 #ifndef __MLX5E_FLOW_STEER_H__
5 #define __MLX5E_FLOW_STEER_H__
6
7 enum {
8 MLX5E_TC_FT_LEVEL = 0,
9 MLX5E_TC_TTC_FT_LEVEL,
10 };
11
12 struct mlx5e_tc_table {
13 struct mlx5_flow_table *t;
14
15 struct rhashtable ht;
16
17 DECLARE_HASHTABLE(mod_hdr_tbl, 8);
18 DECLARE_HASHTABLE(hairpin_tbl, 8);
19
20 struct notifier_block netdevice_nb;
21 };
22
23 struct mlx5e_flow_table {
24 int num_groups;
25 struct mlx5_flow_table *t;
26 struct mlx5_flow_group **g;
27 };
28
29 struct mlx5e_l2_rule {
30 u8 addr[ETH_ALEN + 2];
31 struct mlx5_flow_handle *rule;
32 };
33
34 #define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
35
36 struct mlx5e_vlan_table {
37 struct mlx5e_flow_table ft;
38 DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
39 DECLARE_BITMAP(active_svlans, VLAN_N_VID);
40 struct mlx5_flow_handle *active_cvlans_rule[VLAN_N_VID];
41 struct mlx5_flow_handle *active_svlans_rule[VLAN_N_VID];
42 struct mlx5_flow_handle *untagged_rule;
43 struct mlx5_flow_handle *any_cvlan_rule;
44 struct mlx5_flow_handle *any_svlan_rule;
45 bool cvlan_filter_disabled;
46 };
47
48 struct mlx5e_l2_table {
49 struct mlx5e_flow_table ft;
50 struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
51 struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
52 struct mlx5e_l2_rule broadcast;
53 struct mlx5e_l2_rule allmulti;
54 struct mlx5e_l2_rule promisc;
55 bool broadcast_enabled;
56 bool allmulti_enabled;
57 bool promisc_enabled;
58 };
59
60 enum mlx5e_traffic_types {
61 MLX5E_TT_IPV4_TCP,
62 MLX5E_TT_IPV6_TCP,
63 MLX5E_TT_IPV4_UDP,
64 MLX5E_TT_IPV6_UDP,
65 MLX5E_TT_IPV4_IPSEC_AH,
66 MLX5E_TT_IPV6_IPSEC_AH,
67 MLX5E_TT_IPV4_IPSEC_ESP,
68 MLX5E_TT_IPV6_IPSEC_ESP,
69 MLX5E_TT_IPV4,
70 MLX5E_TT_IPV6,
71 MLX5E_TT_ANY,
72 MLX5E_NUM_TT,
73 MLX5E_NUM_INDIR_TIRS = MLX5E_TT_ANY,
74 };
75
76 enum mlx5e_tunnel_types {
77 MLX5E_TT_IPV4_GRE,
78 MLX5E_TT_IPV6_GRE,
79 MLX5E_NUM_TUNNEL_TT,
80 };
81
82 /* L3/L4 traffic type classifier */
83 struct mlx5e_ttc_table {
84 struct mlx5e_flow_table ft;
85 struct mlx5_flow_handle *rules[MLX5E_NUM_TT];
86 struct mlx5_flow_handle *tunnel_rules[MLX5E_NUM_TUNNEL_TT];
87 };
88
89 /* NIC prio FTS */
90 enum {
91 MLX5E_VLAN_FT_LEVEL = 0,
92 MLX5E_L2_FT_LEVEL,
93 MLX5E_TTC_FT_LEVEL,
94 MLX5E_INNER_TTC_FT_LEVEL,
95 #ifdef CONFIG_MLX5_EN_ARFS
96 MLX5E_ARFS_FT_LEVEL
97 #endif
98 };
99
100 #ifdef CONFIG_MLX5_EN_RXNFC
101
102 struct mlx5e_ethtool_table {
103 struct mlx5_flow_table *ft;
104 int num_rules;
105 };
106
107 #define ETHTOOL_NUM_L3_L4_FTS 7
108 #define ETHTOOL_NUM_L2_FTS 4
109
110 struct mlx5e_ethtool_steering {
111 struct mlx5e_ethtool_table l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS];
112 struct mlx5e_ethtool_table l2_ft[ETHTOOL_NUM_L2_FTS];
113 struct list_head rules;
114 int tot_num_rules;
115 };
116
117 void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv);
118 void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv);
119 int mlx5e_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd);
120 int mlx5e_get_rxnfc(struct net_device *dev,
121 struct ethtool_rxnfc *info, u32 *rule_locs);
122 #else
mlx5e_ethtool_init_steering(struct mlx5e_priv * priv)123 static inline void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv) { }
mlx5e_ethtool_cleanup_steering(struct mlx5e_priv * priv)124 static inline void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv) { }
125 #endif /* CONFIG_MLX5_EN_RXNFC */
126
127 #ifdef CONFIG_MLX5_EN_ARFS
128 #define ARFS_HASH_SHIFT BITS_PER_BYTE
129 #define ARFS_HASH_SIZE BIT(BITS_PER_BYTE)
130
131 struct arfs_table {
132 struct mlx5e_flow_table ft;
133 struct mlx5_flow_handle *default_rule;
134 struct hlist_head rules_hash[ARFS_HASH_SIZE];
135 };
136
137 enum arfs_type {
138 ARFS_IPV4_TCP,
139 ARFS_IPV6_TCP,
140 ARFS_IPV4_UDP,
141 ARFS_IPV6_UDP,
142 ARFS_NUM_TYPES,
143 };
144
145 struct mlx5e_arfs_tables {
146 struct arfs_table arfs_tables[ARFS_NUM_TYPES];
147 /* Protect aRFS rules list */
148 spinlock_t arfs_lock;
149 struct list_head rules;
150 int last_filter_id;
151 struct workqueue_struct *wq;
152 };
153
154 int mlx5e_arfs_create_tables(struct mlx5e_priv *priv);
155 void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv);
156 int mlx5e_arfs_enable(struct mlx5e_priv *priv);
157 int mlx5e_arfs_disable(struct mlx5e_priv *priv);
158 int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
159 u16 rxq_index, u32 flow_id);
160 #else
mlx5e_arfs_create_tables(struct mlx5e_priv * priv)161 static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv) { return 0; }
mlx5e_arfs_destroy_tables(struct mlx5e_priv * priv)162 static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {}
mlx5e_arfs_enable(struct mlx5e_priv * priv)163 static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
mlx5e_arfs_disable(struct mlx5e_priv * priv)164 static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
165 #endif
166
167 struct mlx5e_flow_steering {
168 struct mlx5_flow_namespace *ns;
169 #ifdef CONFIG_MLX5_EN_RXNFC
170 struct mlx5e_ethtool_steering ethtool;
171 #endif
172 struct mlx5e_tc_table tc;
173 struct mlx5e_vlan_table vlan;
174 struct mlx5e_l2_table l2;
175 struct mlx5e_ttc_table ttc;
176 struct mlx5e_ttc_table inner_ttc;
177 #ifdef CONFIG_MLX5_EN_ARFS
178 struct mlx5e_arfs_tables arfs;
179 #endif
180 };
181
182 struct ttc_params {
183 struct mlx5_flow_table_attr ft_attr;
184 u32 any_tt_tirn;
185 u32 indir_tirn[MLX5E_NUM_INDIR_TIRS];
186 struct mlx5e_ttc_table *inner_ttc;
187 };
188
189 void mlx5e_set_ttc_basic_params(struct mlx5e_priv *priv, struct ttc_params *ttc_params);
190 void mlx5e_set_ttc_ft_params(struct ttc_params *ttc_params);
191 void mlx5e_set_inner_ttc_ft_params(struct ttc_params *ttc_params);
192
193 int mlx5e_create_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
194 struct mlx5e_ttc_table *ttc);
195 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv,
196 struct mlx5e_ttc_table *ttc);
197
198 int mlx5e_create_inner_ttc_table(struct mlx5e_priv *priv, struct ttc_params *params,
199 struct mlx5e_ttc_table *ttc);
200 void mlx5e_destroy_inner_ttc_table(struct mlx5e_priv *priv,
201 struct mlx5e_ttc_table *ttc);
202
203 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
204
205 void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv);
206 void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv);
207
208 int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
209 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
210
211 #endif /* __MLX5E_FLOW_STEER_H__ */
212
213
