2 * Copyright (c) 2017, Mellanox Technologies. All rights reserved.
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33 #ifndef __MLX5E_REP_H__
34 #define __MLX5E_REP_H__
36 #include <net/ip_tunnels.h>
37 #include <linux/rhashtable.h>
38 #include <linux/mutex.h>
41 #include "lib/port_tun.h"
43 #ifdef CONFIG_MLX5_ESWITCH
44 extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_rep;
46 struct mlx5e_neigh_update_table {
47 struct rhashtable neigh_ht;
48 /* Save the neigh hash entries in a list in addition to the hash table
49 * (neigh_ht). In order to iterate easily over the neigh entries.
50 * Used for stats query.
52 struct list_head neigh_list;
53 /* protect lookup/remove operations */
54 struct mutex encap_lock;
55 struct notifier_block netevent_nb;
56 struct delayed_work neigh_stats_work;
57 unsigned long min_interval; /* jiffies */
60 struct mlx5_tc_ct_priv;
61 struct mlx5e_rep_bond;
62 struct mlx5e_tc_tun_encap;
64 struct mlx5_rep_uplink_priv {
65 /* Filters DB - instantiated by the uplink representor and shared by
68 struct rhashtable tc_ht;
70 /* indirect block callbacks are invoked on bind/unbind events
71 * on registered higher level devices (e.g. tunnel devices)
73 * tc_indr_block_cb_priv_list is used to lookup indirect callback
77 struct list_head tc_indr_block_priv_list;
79 struct mlx5_tun_entropy tun_entropy;
81 /* protects unready_flows */
82 struct mutex unready_flows_lock;
83 struct list_head unready_flows;
84 struct work_struct reoffload_flows_work;
86 /* maps tun_info to a unique id*/
87 struct mapping_ctx *tunnel_mapping;
88 /* maps tun_enc_opts to a unique id*/
89 struct mapping_ctx *tunnel_enc_opts_mapping;
91 struct mlx5_tc_ct_priv *ct_priv;
93 /* support eswitch vports bonding */
94 struct mlx5e_rep_bond *bond;
96 /* tc tunneling encapsulation private data */
97 struct mlx5e_tc_tun_encap *encap;
100 struct mlx5e_rep_priv {
101 struct mlx5_eswitch_rep *rep;
102 struct mlx5e_neigh_update_table neigh_update;
103 struct net_device *netdev;
104 struct mlx5_flow_table *root_ft;
105 struct mlx5_flow_handle *vport_rx_rule;
106 struct list_head vport_sqs_list;
107 struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */
108 struct rtnl_link_stats64 prev_vf_vport_stats;
112 struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep)
114 return rep->rep_data[REP_ETH].priv;
125 struct mlx5e_neigh_hash_entry {
126 struct rhash_head rhash_node;
127 struct mlx5e_neigh m_neigh;
128 struct mlx5e_priv *priv;
129 struct net_device *neigh_dev;
131 /* Save the neigh hash entry in a list on the representor in
132 * addition to the hash table. In order to iterate easily over the
133 * neighbour entries. Used for stats query.
135 struct list_head neigh_list;
137 /* protects encap list */
138 spinlock_t encap_list_lock;
139 /* encap list sharing the same neigh */
140 struct list_head encap_list;
142 /* neigh hash entry can be deleted only when the refcount is zero.
143 * refcount is needed to avoid neigh hash entry removal by TC, while
144 * it's used by the neigh notification call.
148 /* Save the last reported time offloaded trafic pass over one of the
149 * neigh hash entry flows. Use it to periodically update the neigh
150 * 'used' value and avoid neigh deleting by the kernel.
152 unsigned long reported_lastuse;
158 /* set when the encap entry is successfully offloaded into HW */
159 MLX5_ENCAP_ENTRY_VALID = BIT(0),
160 MLX5_REFORMAT_DECAP = BIT(1),
161 MLX5_ENCAP_ENTRY_NO_ROUTE = BIT(2),
164 struct mlx5e_decap_key {
168 struct mlx5e_decap_entry {
169 struct mlx5e_decap_key key;
170 struct list_head flows;
171 struct hlist_node hlist;
173 struct completion res_ready;
175 struct mlx5_pkt_reformat *pkt_reformat;
179 struct mlx5e_encap_entry {
180 /* attached neigh hash entry */
181 struct mlx5e_neigh_hash_entry *nhe;
182 /* neigh hash entry list of encaps sharing the same neigh */
183 struct list_head encap_list;
184 /* a node of the eswitch encap hash table which keeping all the encap
187 struct hlist_node encap_hlist;
188 struct list_head flows;
189 struct list_head route_list;
190 struct mlx5_pkt_reformat *pkt_reformat;
191 const struct ip_tunnel_info *tun_info;
192 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
194 struct net_device *out_dev;
195 int route_dev_ifindex;
196 struct mlx5e_tc_tunnel *tunnel;
202 struct completion res_ready;
207 struct mlx5e_rep_sq {
208 struct mlx5_flow_handle *send_to_vport_rule;
209 struct list_head list;
212 int mlx5e_rep_init(void);
213 void mlx5e_rep_cleanup(void);
214 int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv);
215 void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv);
216 int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev,
217 struct net_device *lag_dev);
218 void mlx5e_rep_bond_unslave(struct mlx5_eswitch *esw,
219 const struct net_device *netdev,
220 const struct net_device *lag_dev);
221 int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup);
223 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv);
224 int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv);
225 void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv);
227 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
229 bool mlx5e_eswitch_vf_rep(struct net_device *netdev);
230 bool mlx5e_eswitch_uplink_rep(struct net_device *netdev);
231 static inline bool mlx5e_eswitch_rep(struct net_device *netdev)
233 return mlx5e_eswitch_vf_rep(netdev) ||
234 mlx5e_eswitch_uplink_rep(netdev);
237 #else /* CONFIG_MLX5_ESWITCH */
238 static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
239 static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; }
240 static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {}
241 static inline int mlx5e_rep_init(void) { return 0; };
242 static inline void mlx5e_rep_cleanup(void) {};
245 static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv)
247 return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv);
249 #endif /* __MLX5E_REP_H__ */