| /* |
| * Copyright (c) 2017, Mellanox Technologies. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef __MLX5E_REP_H__ |
| #define __MLX5E_REP_H__ |
| |
| #include <net/ip_tunnels.h> |
| #include <linux/rhashtable.h> |
| #include "eswitch.h" |
| #include "en.h" |
| |
| #ifdef CONFIG_MLX5_ESWITCH |
| struct mlx5e_neigh_update_table { |
| struct rhashtable neigh_ht; |
| /* Save the neigh hash entries in a list in addition to the hash table |
| * (neigh_ht). In order to iterate easily over the neigh entries. |
| * Used for stats query. |
| */ |
| struct list_head neigh_list; |
| /* protect lookup/remove operations */ |
| spinlock_t encap_lock; |
| struct notifier_block netevent_nb; |
| struct delayed_work neigh_stats_work; |
| unsigned long min_interval; /* jiffies */ |
| }; |
| |
| struct mlx5e_rep_priv { |
| struct mlx5_eswitch_rep *rep; |
| struct mlx5e_neigh_update_table neigh_update; |
| struct net_device *netdev; |
| struct mlx5_flow_handle *vport_rx_rule; |
| struct list_head vport_sqs_list; |
| }; |
| |
| static inline |
| struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep) |
| { |
| return (struct mlx5e_rep_priv *)rep->rep_if[REP_ETH].priv; |
| } |
| |
| struct mlx5e_neigh { |
| struct net_device *dev; |
| union { |
| __be32 v4; |
| struct in6_addr v6; |
| } dst_ip; |
| int family; |
| }; |
| |
| struct mlx5e_neigh_hash_entry { |
| struct rhash_head rhash_node; |
| struct mlx5e_neigh m_neigh; |
| |
| /* Save the neigh hash entry in a list on the representor in |
| * addition to the hash table. In order to iterate easily over the |
| * neighbour entries. Used for stats query. |
| */ |
| struct list_head neigh_list; |
| |
| /* encap list sharing the same neigh */ |
| struct list_head encap_list; |
| |
| /* valid only when the neigh reference is taken during |
| * neigh_update_work workqueue callback. |
| */ |
| struct neighbour *n; |
| struct work_struct neigh_update_work; |
| |
| /* neigh hash entry can be deleted only when the refcount is zero. |
| * refcount is needed to avoid neigh hash entry removal by TC, while |
| * it's used by the neigh notification call. |
| */ |
| refcount_t refcnt; |
| |
| /* Save the last reported time offloaded trafic pass over one of the |
| * neigh hash entry flows. Use it to periodically update the neigh |
| * 'used' value and avoid neigh deleting by the kernel. |
| */ |
| unsigned long reported_lastuse; |
| }; |
| |
| enum { |
| /* set when the encap entry is successfully offloaded into HW */ |
| MLX5_ENCAP_ENTRY_VALID = BIT(0), |
| }; |
| |
| struct mlx5e_encap_entry { |
| /* neigh hash entry list of encaps sharing the same neigh */ |
| struct list_head encap_list; |
| struct mlx5e_neigh m_neigh; |
| /* a node of the eswitch encap hash table which keeping all the encap |
| * entries |
| */ |
| struct hlist_node encap_hlist; |
| struct list_head flows; |
| u32 encap_id; |
| struct ip_tunnel_info tun_info; |
| unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ |
| |
| struct net_device *out_dev; |
| int tunnel_type; |
| u8 flags; |
| char *encap_header; |
| int encap_size; |
| }; |
| |
| struct mlx5e_rep_sq { |
| struct mlx5_flow_handle *send_to_vport_rule; |
| struct list_head list; |
| }; |
| |
| void *mlx5e_alloc_nic_rep_priv(struct mlx5_core_dev *mdev); |
| void mlx5e_register_vport_reps(struct mlx5e_priv *priv); |
| void mlx5e_unregister_vport_reps(struct mlx5e_priv *priv); |
| bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv); |
| int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv); |
| void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv); |
| |
| int mlx5e_get_offload_stats(int attr_id, const struct net_device *dev, void *sp); |
| bool mlx5e_has_offload_stats(const struct net_device *dev, int attr_id); |
| |
| int mlx5e_attr_get(struct net_device *dev, struct switchdev_attr *attr); |
| void mlx5e_handle_rx_cqe_rep(struct mlx5e_rq *rq, struct mlx5_cqe64 *cqe); |
| |
| int mlx5e_rep_encap_entry_attach(struct mlx5e_priv *priv, |
| struct mlx5e_encap_entry *e); |
| void mlx5e_rep_encap_entry_detach(struct mlx5e_priv *priv, |
| struct mlx5e_encap_entry *e); |
| |
| void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv); |
| #else /* CONFIG_MLX5_ESWITCH */ |
| static inline void mlx5e_register_vport_reps(struct mlx5e_priv *priv) {} |
| static inline void mlx5e_unregister_vport_reps(struct mlx5e_priv *priv) {} |
| static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; } |
| static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; } |
| static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {} |
| #endif |
| |
| #endif /* __MLX5E_REP_H__ */ |