/* * 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 #include #include #include "eswitch.h" #include "en.h" #include "lib/port_tun.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 */ struct mutex encap_lock; struct notifier_block netevent_nb; struct delayed_work neigh_stats_work; unsigned long min_interval; /* jiffies */ }; struct mlx5_rep_uplink_priv { /* Filters DB - instantiated by the uplink representor and shared by * the uplink's VFs */ struct rhashtable tc_ht; /* indirect block callbacks are invoked on bind/unbind events * on registered higher level devices (e.g. tunnel devices) * * tc_indr_block_cb_priv_list is used to lookup indirect callback * private data * * netdevice_nb is the netdev events notifier - used to register * tunnel devices for block events * */ struct list_head tc_indr_block_priv_list; struct notifier_block netdevice_nb; struct mlx5_tun_entropy tun_entropy; /* protects unready_flows */ struct mutex unready_flows_lock; struct list_head unready_flows; struct work_struct reoffload_flows_work; }; 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; struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */ struct rtnl_link_stats64 prev_vf_vport_stats; struct devlink_port dl_port; }; static inline struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep) { return rep->rep_data[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; struct mlx5e_priv *priv; /* 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; /* protects encap list */ spinlock_t encap_list_lock; /* 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; struct rcu_head rcu; }; enum { /* set when the encap entry is successfully offloaded into HW */ MLX5_ENCAP_ENTRY_VALID = BIT(0), }; struct mlx5e_encap_entry { /* attached neigh hash entry */ struct mlx5e_neigh_hash_entry *nhe; /* 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; struct mlx5_pkt_reformat *pkt_reformat; const struct ip_tunnel_info *tun_info; unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ struct net_device *out_dev; struct net_device *route_dev; struct mlx5e_tc_tunnel *tunnel; int reformat_type; u8 flags; char *encap_header; int encap_size; refcount_t refcnt; struct completion res_ready; int compl_result; struct rcu_head rcu; }; struct mlx5e_rep_sq { struct mlx5_flow_handle *send_to_vport_rule; struct list_head list; }; void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev); void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev); 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); 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); bool mlx5e_eswitch_rep(struct net_device *netdev); #else /* CONFIG_MLX5_ESWITCH */ 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 static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv) { return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv); } #endif /* __MLX5E_REP_H__ */