2 * Copyright (c) 2017, Mellanox Technologies. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 #ifndef __MLX5E_REP_H__
34 #define __MLX5E_REP_H__
36 #include <net/ip_tunnels.h>
37 #include <linux/rhashtable.h>
41 #ifdef CONFIG_MLX5_ESWITCH
42 struct mlx5e_neigh_update_table {
43 struct rhashtable neigh_ht;
44 /* Save the neigh hash entries in a list in addition to the hash table
45 * (neigh_ht). In order to iterate easily over the neigh entries.
46 * Used for stats query.
48 struct list_head neigh_list;
49 /* protect lookup/remove operations */
50 spinlock_t encap_lock;
51 struct notifier_block netevent_nb;
52 struct delayed_work neigh_stats_work;
53 unsigned long min_interval; /* jiffies */
56 struct mlx5e_rep_priv {
57 struct mlx5_eswitch_rep *rep;
58 struct mlx5e_neigh_update_table neigh_update;
59 struct net_device *netdev;
60 struct mlx5_flow_handle *vport_rx_rule;
61 struct list_head vport_sqs_list;
65 struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep)
67 return (struct mlx5e_rep_priv *)rep->rep_if[REP_ETH].priv;
71 struct net_device *dev;
79 struct mlx5e_neigh_hash_entry {
80 struct rhash_head rhash_node;
81 struct mlx5e_neigh m_neigh;
83 /* Save the neigh hash entry in a list on the representor in
84 * addition to the hash table. In order to iterate easily over the
85 * neighbour entries. Used for stats query.
87 struct list_head neigh_list;
89 /* encap list sharing the same neigh */
90 struct list_head encap_list;
92 /* valid only when the neigh reference is taken during
93 * neigh_update_work workqueue callback.
96 struct work_struct neigh_update_work;
98 /* neigh hash entry can be deleted only when the refcount is zero.
99 * refcount is needed to avoid neigh hash entry removal by TC, while
100 * it's used by the neigh notification call.
104 /* Save the last reported time offloaded trafic pass over one of the
105 * neigh hash entry flows. Use it to periodically update the neigh
106 * 'used' value and avoid neigh deleting by the kernel.
108 unsigned long reported_lastuse;
112 /* set when the encap entry is successfully offloaded into HW */
113 MLX5_ENCAP_ENTRY_VALID = BIT(0),
116 struct mlx5e_encap_entry {
117 /* neigh hash entry list of encaps sharing the same neigh */
118 struct list_head encap_list;
119 struct mlx5e_neigh m_neigh;
120 /* a node of the eswitch encap hash table which keeping all the encap
123 struct hlist_node encap_hlist;
124 struct list_head flows;
126 struct ip_tunnel_info tun_info;
127 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
129 struct net_device *out_dev;
136 struct mlx5e_rep_sq {
137 struct mlx5_flow_handle *send_to_vport_rule;
138 struct list_head list;
141 void *mlx5e_alloc_nic_rep_priv(struct mlx5_core_dev *mdev);
142 void mlx5e_register_vport_reps(struct mlx5e_priv *priv);
143 void mlx5e_unregister_vport_reps(struct mlx5e_priv *priv);
144 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv);
145 int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv);
146 void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv);
148 int mlx5e_get_offload_stats(int attr_id, const struct net_device *dev, void *sp);
149 bool mlx5e_has_offload_stats(const struct net_device *dev, int attr_id);
151 int mlx5e_attr_get(struct net_device *dev, struct switchdev_attr *attr);
152 void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe);
154 int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv,
155 struct mlx5e_encap_entry *e);
156 void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv,
157 struct mlx5e_encap_entry *e);
159 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
160 #else /* CONFIG_MLX5_ESWITCH */
161 static inline void mlx5e_register_vport_reps(struct mlx5e_priv *priv) {}
162 static inline void mlx5e_unregister_vport_reps(struct mlx5e_priv *priv) {}
163 static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
164 static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; }
165 static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {}
168 #endif /* __MLX5E_REP_H__ */