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 #include "mod_hdr.h"
8 #include "lib/fs_ttc.h"
9
10 struct mlx5e_post_act;
11
12 enum {
13 MLX5E_TC_FT_LEVEL = 0,
14 MLX5E_TC_TTC_FT_LEVEL,
15 MLX5E_TC_MISS_LEVEL,
16 };
17
18 struct mlx5e_tc_table {
19 /* Protects the dynamic assignment of the t parameter
20 * which is the nic tc root table.
21 */
22 struct mutex t_lock;
23 struct mlx5_flow_table *t;
24 struct mlx5_flow_table *miss_t;
25 struct mlx5_fs_chains *chains;
26 struct mlx5e_post_act *post_act;
27
28 struct rhashtable ht;
29
30 struct mod_hdr_tbl mod_hdr;
31 struct mutex hairpin_tbl_lock; /* protects hairpin_tbl */
32 DECLARE_HASHTABLE(hairpin_tbl, 8);
33
34 struct notifier_block netdevice_nb;
35 struct netdev_net_notifier netdevice_nn;
36
37 struct mlx5_tc_ct_priv *ct;
38 struct mapping_ctx *mapping;
39 };
40
41 struct mlx5e_flow_table {
42 int num_groups;
43 struct mlx5_flow_table *t;
44 struct mlx5_flow_group **g;
45 };
46
47 struct mlx5e_l2_rule {
48 u8 addr[ETH_ALEN + 2];
49 struct mlx5_flow_handle *rule;
50 };
51
52 #define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
53
54 struct mlx5e_promisc_table {
55 struct mlx5e_flow_table ft;
56 struct mlx5_flow_handle *rule;
57 };
58
59 /* Forward declaration and APIs to get private fields of vlan_table */
60 struct mlx5e_vlan_table;
61 unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan);
62 struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan);
63
64 struct mlx5e_l2_table {
65 struct mlx5e_flow_table ft;
66 struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
67 struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
68 struct mlx5e_l2_rule broadcast;
69 struct mlx5e_l2_rule allmulti;
70 struct mlx5_flow_handle *trap_rule;
71 bool broadcast_enabled;
72 bool allmulti_enabled;
73 bool promisc_enabled;
74 };
75
76 #define MLX5E_NUM_INDIR_TIRS (MLX5_NUM_TT - 1)
77
78 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
79 MLX5_HASH_FIELD_SEL_DST_IP)
80 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
81 MLX5_HASH_FIELD_SEL_DST_IP |\
82 MLX5_HASH_FIELD_SEL_L4_SPORT |\
83 MLX5_HASH_FIELD_SEL_L4_DPORT)
84 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
85 MLX5_HASH_FIELD_SEL_DST_IP |\
86 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
87
88 /* NIC prio FTS */
89 enum {
90 MLX5E_PROMISC_FT_LEVEL,
91 MLX5E_VLAN_FT_LEVEL,
92 MLX5E_L2_FT_LEVEL,
93 MLX5E_TTC_FT_LEVEL,
94 MLX5E_INNER_TTC_FT_LEVEL,
95 MLX5E_FS_TT_UDP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
96 MLX5E_FS_TT_ANY_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
97 #ifdef CONFIG_MLX5_EN_TLS
98 MLX5E_ACCEL_FS_TCP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
99 #endif
100 #ifdef CONFIG_MLX5_EN_ARFS
101 MLX5E_ARFS_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
102 #endif
103 #ifdef CONFIG_MLX5_EN_IPSEC
104 MLX5E_ACCEL_FS_ESP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
105 MLX5E_ACCEL_FS_ESP_FT_ERR_LEVEL,
106 #endif
107 };
108
109 struct mlx5e_priv;
110
111 #ifdef CONFIG_MLX5_EN_RXNFC
112
113 struct mlx5e_ethtool_table {
114 struct mlx5_flow_table *ft;
115 int num_rules;
116 };
117
118 #define ETHTOOL_NUM_L3_L4_FTS 7
119 #define ETHTOOL_NUM_L2_FTS 4
120
121 struct mlx5e_ethtool_steering {
122 struct mlx5e_ethtool_table l3_l4_ft[ETHTOOL_NUM_L3_L4_FTS];
123 struct mlx5e_ethtool_table l2_ft[ETHTOOL_NUM_L2_FTS];
124 struct list_head rules;
125 int tot_num_rules;
126 };
127
128 void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv);
129 void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv);
130 int mlx5e_ethtool_set_rxnfc(struct mlx5e_priv *priv, struct ethtool_rxnfc *cmd);
131 int mlx5e_ethtool_get_rxnfc(struct mlx5e_priv *priv,
132 struct ethtool_rxnfc *info, u32 *rule_locs);
133 #else
mlx5e_ethtool_init_steering(struct mlx5e_priv * priv)134 static inline void mlx5e_ethtool_init_steering(struct mlx5e_priv *priv) { }
mlx5e_ethtool_cleanup_steering(struct mlx5e_priv * priv)135 static inline void mlx5e_ethtool_cleanup_steering(struct mlx5e_priv *priv) { }
mlx5e_ethtool_set_rxnfc(struct mlx5e_priv * priv,struct ethtool_rxnfc * cmd)136 static inline int mlx5e_ethtool_set_rxnfc(struct mlx5e_priv *priv, struct ethtool_rxnfc *cmd)
137 { return -EOPNOTSUPP; }
mlx5e_ethtool_get_rxnfc(struct mlx5e_priv * priv,struct ethtool_rxnfc * info,u32 * rule_locs)138 static inline int mlx5e_ethtool_get_rxnfc(struct mlx5e_priv *priv,
139 struct ethtool_rxnfc *info, u32 *rule_locs)
140 { return -EOPNOTSUPP; }
141 #endif /* CONFIG_MLX5_EN_RXNFC */
142
143 #ifdef CONFIG_MLX5_EN_ARFS
144 struct mlx5e_arfs_tables;
145
146 int mlx5e_arfs_create_tables(struct mlx5e_priv *priv);
147 void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv);
148 int mlx5e_arfs_enable(struct mlx5e_priv *priv);
149 int mlx5e_arfs_disable(struct mlx5e_priv *priv);
150 int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
151 u16 rxq_index, u32 flow_id);
152 #else
mlx5e_arfs_create_tables(struct mlx5e_priv * priv)153 static inline int mlx5e_arfs_create_tables(struct mlx5e_priv *priv) { return 0; }
mlx5e_arfs_destroy_tables(struct mlx5e_priv * priv)154 static inline void mlx5e_arfs_destroy_tables(struct mlx5e_priv *priv) {}
mlx5e_arfs_enable(struct mlx5e_priv * priv)155 static inline int mlx5e_arfs_enable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
mlx5e_arfs_disable(struct mlx5e_priv * priv)156 static inline int mlx5e_arfs_disable(struct mlx5e_priv *priv) { return -EOPNOTSUPP; }
157 #endif
158
159 #ifdef CONFIG_MLX5_EN_TLS
160 struct mlx5e_accel_fs_tcp;
161 #endif
162
163 struct mlx5e_fs_udp;
164 struct mlx5e_fs_any;
165 struct mlx5e_ptp_fs;
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_promisc_table promisc;
174 struct mlx5e_vlan_table *vlan;
175 struct mlx5e_l2_table l2;
176 struct mlx5_ttc_table *ttc;
177 struct mlx5_ttc_table *inner_ttc;
178 #ifdef CONFIG_MLX5_EN_ARFS
179 struct mlx5e_arfs_tables *arfs;
180 #endif
181 #ifdef CONFIG_MLX5_EN_TLS
182 struct mlx5e_accel_fs_tcp *accel_tcp;
183 #endif
184 struct mlx5e_fs_udp *udp;
185 struct mlx5e_fs_any *any;
186 struct mlx5e_ptp_fs *ptp_fs;
187 };
188
189 void mlx5e_set_ttc_params(struct mlx5e_priv *priv,
190 struct ttc_params *ttc_params, bool tunnel);
191
192 void mlx5e_destroy_ttc_table(struct mlx5e_priv *priv);
193 int mlx5e_create_ttc_table(struct mlx5e_priv *priv);
194
195 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
196
197 void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv);
198 void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv);
199
200 int mlx5e_create_flow_steering(struct mlx5e_priv *priv);
201 void mlx5e_destroy_flow_steering(struct mlx5e_priv *priv);
202
203 int mlx5e_fs_init(struct mlx5e_priv *priv);
204 void mlx5e_fs_cleanup(struct mlx5e_priv *priv);
205
206 int mlx5e_add_vlan_trap(struct mlx5e_priv *priv, int trap_id, int tir_num);
207 void mlx5e_remove_vlan_trap(struct mlx5e_priv *priv);
208 int mlx5e_add_mac_trap(struct mlx5e_priv *priv, int trap_id, int tir_num);
209 void mlx5e_remove_mac_trap(struct mlx5e_priv *priv);
210
211 #endif /* __MLX5E_FLOW_STEER_H__ */
212
213