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 struct mlx5e_neigh_update_table {
45 struct rhashtable neigh_ht;
46 /* Save the neigh hash entries in a list in addition to the hash table
47 * (neigh_ht). In order to iterate easily over the neigh entries.
48 * Used for stats query.
50 struct list_head neigh_list;
51 /* protect lookup/remove operations */
52 struct mutex encap_lock;
53 struct notifier_block netevent_nb;
54 struct delayed_work neigh_stats_work;
55 unsigned long min_interval; /* jiffies */
58 struct mlx5_tc_ct_priv;
59 struct mlx5_rep_uplink_priv {
60 /* Filters DB - instantiated by the uplink representor and shared by
63 struct rhashtable tc_ht;
65 /* indirect block callbacks are invoked on bind/unbind events
66 * on registered higher level devices (e.g. tunnel devices)
68 * tc_indr_block_cb_priv_list is used to lookup indirect callback
71 * netdevice_nb is the netdev events notifier - used to register
72 * tunnel devices for block events
75 struct list_head tc_indr_block_priv_list;
76 struct notifier_block netdevice_nb;
77 struct netdev_net_notifier netdevice_nn;
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;
94 struct mlx5e_rep_priv {
95 struct mlx5_eswitch_rep *rep;
96 struct mlx5e_neigh_update_table neigh_update;
97 struct net_device *netdev;
98 struct mlx5_flow_table *root_ft;
99 struct mlx5_flow_handle *vport_rx_rule;
100 struct list_head vport_sqs_list;
101 struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */
102 struct rtnl_link_stats64 prev_vf_vport_stats;
103 struct devlink_port dl_port;
107 struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep)
109 return rep->rep_data[REP_ETH].priv;
113 struct net_device *dev;
121 struct mlx5e_neigh_hash_entry {
122 struct rhash_head rhash_node;
123 struct mlx5e_neigh m_neigh;
124 struct mlx5e_priv *priv;
126 /* Save the neigh hash entry in a list on the representor in
127 * addition to the hash table. In order to iterate easily over the
128 * neighbour entries. Used for stats query.
130 struct list_head neigh_list;
132 /* protects encap list */
133 spinlock_t encap_list_lock;
134 /* encap list sharing the same neigh */
135 struct list_head encap_list;
137 /* valid only when the neigh reference is taken during
138 * neigh_update_work workqueue callback.
141 struct work_struct neigh_update_work;
143 /* neigh hash entry can be deleted only when the refcount is zero.
144 * refcount is needed to avoid neigh hash entry removal by TC, while
145 * it's used by the neigh notification call.
149 /* Save the last reported time offloaded trafic pass over one of the
150 * neigh hash entry flows. Use it to periodically update the neigh
151 * 'used' value and avoid neigh deleting by the kernel.
153 unsigned long reported_lastuse;
159 /* set when the encap entry is successfully offloaded into HW */
160 MLX5_ENCAP_ENTRY_VALID = BIT(0),
163 struct mlx5e_encap_entry {
164 /* attached neigh hash entry */
165 struct mlx5e_neigh_hash_entry *nhe;
166 /* neigh hash entry list of encaps sharing the same neigh */
167 struct list_head encap_list;
168 struct mlx5e_neigh m_neigh;
169 /* a node of the eswitch encap hash table which keeping all the encap
172 struct hlist_node encap_hlist;
173 struct list_head flows;
174 struct mlx5_pkt_reformat *pkt_reformat;
175 const struct ip_tunnel_info *tun_info;
176 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
178 struct net_device *out_dev;
179 struct net_device *route_dev;
180 struct mlx5e_tc_tunnel *tunnel;
186 struct completion res_ready;
191 struct mlx5e_rep_sq {
192 struct mlx5_flow_handle *send_to_vport_rule;
193 struct list_head list;
196 void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev);
197 void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev);
198 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv);
199 int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv);
200 void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv);
202 void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
203 void mlx5e_handle_rx_cqe_mpwrq_rep(struct mlx5e_rq *rq,
204 struct mlx5_cqe64 *cqe);
206 int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv,
207 struct mlx5e_encap_entry *e);
208 void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv,
209 struct mlx5e_encap_entry *e);
211 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
213 bool mlx5e_eswitch_rep(struct net_device *netdev);
214 bool mlx5e_eswitch_uplink_rep(struct net_device *netdev);
216 #else /* CONFIG_MLX5_ESWITCH */
217 static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
218 static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; }
219 static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {}
222 static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv)
224 return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv);
226 #endif /* __MLX5E_REP_H__ */