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 struct mlx5e_tc_table;
12
13 enum {
14 MLX5E_TC_FT_LEVEL = 0,
15 MLX5E_TC_TTC_FT_LEVEL,
16 MLX5E_TC_MISS_LEVEL,
17 };
18
19 enum {
20 MLX5E_TC_PRIO = 0,
21 MLX5E_NIC_PRIO
22 };
23
24 struct mlx5e_flow_table {
25 int num_groups;
26 struct mlx5_flow_table *t;
27 struct mlx5_flow_group **g;
28 };
29
30 struct mlx5e_l2_rule {
31 u8 addr[ETH_ALEN + 2];
32 struct mlx5_flow_handle *rule;
33 };
34
35 #define MLX5E_L2_ADDR_HASH_SIZE BIT(BITS_PER_BYTE)
36
37 struct mlx5e_promisc_table {
38 struct mlx5e_flow_table ft;
39 struct mlx5_flow_handle *rule;
40 };
41
42 /* Forward declaration and APIs to get private fields of vlan_table */
43 struct mlx5e_vlan_table;
44 unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan);
45 struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan);
46
47 struct mlx5e_l2_table {
48 struct mlx5e_flow_table ft;
49 struct hlist_head netdev_uc[MLX5E_L2_ADDR_HASH_SIZE];
50 struct hlist_head netdev_mc[MLX5E_L2_ADDR_HASH_SIZE];
51 struct mlx5e_l2_rule broadcast;
52 struct mlx5e_l2_rule allmulti;
53 struct mlx5_flow_handle *trap_rule;
54 bool broadcast_enabled;
55 bool allmulti_enabled;
56 bool promisc_enabled;
57 };
58
59 #define MLX5E_NUM_INDIR_TIRS (MLX5_NUM_TT - 1)
60
61 #define MLX5_HASH_IP (MLX5_HASH_FIELD_SEL_SRC_IP |\
62 MLX5_HASH_FIELD_SEL_DST_IP)
63 #define MLX5_HASH_IP_L4PORTS (MLX5_HASH_FIELD_SEL_SRC_IP |\
64 MLX5_HASH_FIELD_SEL_DST_IP |\
65 MLX5_HASH_FIELD_SEL_L4_SPORT |\
66 MLX5_HASH_FIELD_SEL_L4_DPORT)
67 #define MLX5_HASH_IP_IPSEC_SPI (MLX5_HASH_FIELD_SEL_SRC_IP |\
68 MLX5_HASH_FIELD_SEL_DST_IP |\
69 MLX5_HASH_FIELD_SEL_IPSEC_SPI)
70
71 /* NIC prio FTS */
72 enum {
73 MLX5E_PROMISC_FT_LEVEL,
74 MLX5E_VLAN_FT_LEVEL,
75 MLX5E_L2_FT_LEVEL,
76 MLX5E_TTC_FT_LEVEL,
77 MLX5E_INNER_TTC_FT_LEVEL,
78 MLX5E_FS_TT_UDP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
79 MLX5E_FS_TT_ANY_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
80 #ifdef CONFIG_MLX5_EN_TLS
81 MLX5E_ACCEL_FS_TCP_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
82 #endif
83 #ifdef CONFIG_MLX5_EN_ARFS
84 MLX5E_ARFS_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
85 #endif
86 #ifdef CONFIG_MLX5_EN_IPSEC
87 MLX5E_ACCEL_FS_POL_FT_LEVEL = MLX5E_INNER_TTC_FT_LEVEL + 1,
88 MLX5E_ACCEL_FS_ESP_FT_LEVEL,
89 MLX5E_ACCEL_FS_ESP_FT_ERR_LEVEL,
90 MLX5E_ACCEL_FS_ESP_FT_ROCE_LEVEL,
91 #endif
92 };
93
94 struct mlx5e_flow_steering;
95 struct mlx5e_rx_res;
96
97 #ifdef CONFIG_MLX5_EN_ARFS
98 struct mlx5e_arfs_tables;
99
100 int mlx5e_arfs_create_tables(struct mlx5e_flow_steering *fs,
101 struct mlx5e_rx_res *rx_res, bool ntuple);
102 void mlx5e_arfs_destroy_tables(struct mlx5e_flow_steering *fs, bool ntuple);
103 int mlx5e_arfs_enable(struct mlx5e_flow_steering *fs);
104 int mlx5e_arfs_disable(struct mlx5e_flow_steering *fs);
105 int mlx5e_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
106 u16 rxq_index, u32 flow_id);
107 #else
mlx5e_arfs_create_tables(struct mlx5e_flow_steering * fs,struct mlx5e_rx_res * rx_res,bool ntuple)108 static inline int mlx5e_arfs_create_tables(struct mlx5e_flow_steering *fs,
109 struct mlx5e_rx_res *rx_res, bool ntuple)
110 { return 0; }
mlx5e_arfs_destroy_tables(struct mlx5e_flow_steering * fs,bool ntuple)111 static inline void mlx5e_arfs_destroy_tables(struct mlx5e_flow_steering *fs, bool ntuple) {}
mlx5e_arfs_enable(struct mlx5e_flow_steering * fs)112 static inline int mlx5e_arfs_enable(struct mlx5e_flow_steering *fs)
113 { return -EOPNOTSUPP; }
mlx5e_arfs_disable(struct mlx5e_flow_steering * fs)114 static inline int mlx5e_arfs_disable(struct mlx5e_flow_steering *fs)
115 { return -EOPNOTSUPP; }
116 #endif
117
118 #ifdef CONFIG_MLX5_EN_TLS
119 struct mlx5e_accel_fs_tcp;
120 #endif
121
122 struct mlx5e_profile;
123 struct mlx5e_fs_udp;
124 struct mlx5e_fs_any;
125 struct mlx5e_ptp_fs;
126
127 void mlx5e_set_ttc_params(struct mlx5e_flow_steering *fs,
128 struct mlx5e_rx_res *rx_res,
129 struct ttc_params *ttc_params, bool tunnel);
130
131 void mlx5e_destroy_ttc_table(struct mlx5e_flow_steering *fs);
132 int mlx5e_create_ttc_table(struct mlx5e_flow_steering *fs,
133 struct mlx5e_rx_res *rx_res);
134
135 void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft);
136
137 void mlx5e_enable_cvlan_filter(struct mlx5e_flow_steering *fs, bool promisc);
138 void mlx5e_disable_cvlan_filter(struct mlx5e_flow_steering *fs, bool promisc);
139
140 int mlx5e_create_flow_steering(struct mlx5e_flow_steering *fs,
141 struct mlx5e_rx_res *rx_res,
142 const struct mlx5e_profile *profile,
143 struct net_device *netdev);
144 void mlx5e_destroy_flow_steering(struct mlx5e_flow_steering *fs, bool ntuple,
145 const struct mlx5e_profile *profile);
146
147 struct mlx5e_flow_steering *mlx5e_fs_init(const struct mlx5e_profile *profile,
148 struct mlx5_core_dev *mdev,
149 bool state_destroy,
150 struct dentry *dfs_root);
151 void mlx5e_fs_cleanup(struct mlx5e_flow_steering *fs);
152 struct mlx5e_vlan_table *mlx5e_fs_get_vlan(struct mlx5e_flow_steering *fs);
153 struct mlx5e_tc_table *mlx5e_fs_get_tc(struct mlx5e_flow_steering *fs);
154 struct mlx5e_l2_table *mlx5e_fs_get_l2(struct mlx5e_flow_steering *fs);
155 struct mlx5_flow_namespace *mlx5e_fs_get_ns(struct mlx5e_flow_steering *fs, bool egress);
156 void mlx5e_fs_set_ns(struct mlx5e_flow_steering *fs, struct mlx5_flow_namespace *ns, bool egress);
157
mlx5e_fs_has_arfs(struct net_device * netdev)158 static inline bool mlx5e_fs_has_arfs(struct net_device *netdev)
159 {
160 return IS_ENABLED(CONFIG_MLX5_EN_ARFS) &&
161 netdev->hw_features & NETIF_F_NTUPLE;
162 }
163
mlx5e_fs_want_arfs(struct net_device * netdev)164 static inline bool mlx5e_fs_want_arfs(struct net_device *netdev)
165 {
166 return IS_ENABLED(CONFIG_MLX5_EN_ARFS) &&
167 netdev->features & NETIF_F_NTUPLE;
168 }
169
170 #ifdef CONFIG_MLX5_EN_RXNFC
171 struct mlx5e_ethtool_steering *mlx5e_fs_get_ethtool(struct mlx5e_flow_steering *fs);
172 #endif
173 struct mlx5_ttc_table *mlx5e_fs_get_ttc(struct mlx5e_flow_steering *fs, bool inner);
174 void mlx5e_fs_set_ttc(struct mlx5e_flow_steering *fs, struct mlx5_ttc_table *ttc, bool inner);
175 #ifdef CONFIG_MLX5_EN_ARFS
176 struct mlx5e_arfs_tables *mlx5e_fs_get_arfs(struct mlx5e_flow_steering *fs);
177 void mlx5e_fs_set_arfs(struct mlx5e_flow_steering *fs, struct mlx5e_arfs_tables *arfs);
178 #endif
179 struct mlx5e_ptp_fs *mlx5e_fs_get_ptp(struct mlx5e_flow_steering *fs);
180 void mlx5e_fs_set_ptp(struct mlx5e_flow_steering *fs, struct mlx5e_ptp_fs *ptp_fs);
181 struct mlx5e_fs_any *mlx5e_fs_get_any(struct mlx5e_flow_steering *fs);
182 void mlx5e_fs_set_any(struct mlx5e_flow_steering *fs, struct mlx5e_fs_any *any);
183 struct mlx5e_fs_udp *mlx5e_fs_get_udp(struct mlx5e_flow_steering *fs);
184 void mlx5e_fs_set_udp(struct mlx5e_flow_steering *fs, struct mlx5e_fs_udp *udp);
185 #ifdef CONFIG_MLX5_EN_TLS
186 struct mlx5e_accel_fs_tcp *mlx5e_fs_get_accel_tcp(struct mlx5e_flow_steering *fs);
187 void mlx5e_fs_set_accel_tcp(struct mlx5e_flow_steering *fs, struct mlx5e_accel_fs_tcp *accel_tcp);
188 #endif
189 void mlx5e_fs_set_state_destroy(struct mlx5e_flow_steering *fs, bool state_destroy);
190 void mlx5e_fs_set_vlan_strip_disable(struct mlx5e_flow_steering *fs, bool vlan_strip_disable);
191
192 struct mlx5_core_dev *mlx5e_fs_get_mdev(struct mlx5e_flow_steering *fs);
193 int mlx5e_add_vlan_trap(struct mlx5e_flow_steering *fs, int trap_id, int tir_num);
194 void mlx5e_remove_vlan_trap(struct mlx5e_flow_steering *fs);
195 int mlx5e_add_mac_trap(struct mlx5e_flow_steering *fs, int trap_id, int tir_num);
196 void mlx5e_remove_mac_trap(struct mlx5e_flow_steering *fs);
197 void mlx5e_fs_set_rx_mode_work(struct mlx5e_flow_steering *fs, struct net_device *netdev);
198 int mlx5e_fs_vlan_rx_add_vid(struct mlx5e_flow_steering *fs,
199 struct net_device *netdev,
200 __be16 proto, u16 vid);
201 int mlx5e_fs_vlan_rx_kill_vid(struct mlx5e_flow_steering *fs,
202 struct net_device *netdev,
203 __be16 proto, u16 vid);
204 void mlx5e_fs_init_l2_addr(struct mlx5e_flow_steering *fs, struct net_device *netdev);
205
206 struct dentry *mlx5e_fs_get_debugfs_root(struct mlx5e_flow_steering *fs);
207
208 #define fs_err(fs, fmt, ...) \
209 mlx5_core_err(mlx5e_fs_get_mdev(fs), fmt, ##__VA_ARGS__)
210
211 #define fs_dbg(fs, fmt, ...) \
212 mlx5_core_dbg(mlx5e_fs_get_mdev(fs), fmt, ##__VA_ARGS__)
213
214 #define fs_warn(fs, fmt, ...) \
215 mlx5_core_warn(mlx5e_fs_get_mdev(fs), fmt, ##__VA_ARGS__)
216
217 #define fs_warn_once(fs, fmt, ...) \
218 mlx5_core_warn_once(mlx5e_fs_get_mdev(fs), fmt, ##__VA_ARGS__)
219
220 #endif /* __MLX5E_FLOW_STEER_H__ */
221
222