/*
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* Copyright (c) 2017, Mellanox Technologies. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __MLX5E_REP_H__
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#define __MLX5E_REP_H__
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#include <net/ip_tunnels.h>
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#include <linux/rhashtable.h>
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#include <linux/mutex.h>
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#include "eswitch.h"
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#include "en.h"
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#include "lib/port_tun.h"
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#ifdef CONFIG_MLX5_ESWITCH
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extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_rep;
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struct mlx5e_neigh_update_table {
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struct rhashtable neigh_ht;
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/* Save the neigh hash entries in a list in addition to the hash table
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* (neigh_ht). In order to iterate easily over the neigh entries.
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* Used for stats query.
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*/
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struct list_head neigh_list;
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/* protect lookup/remove operations */
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struct mutex encap_lock;
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struct notifier_block netevent_nb;
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struct delayed_work neigh_stats_work;
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unsigned long min_interval; /* jiffies */
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};
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struct mlx5_tc_ct_priv;
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struct mlx5e_rep_bond;
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struct mlx5_rep_uplink_priv {
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/* Filters DB - instantiated by the uplink representor and shared by
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* the uplink's VFs
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*/
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struct rhashtable tc_ht;
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/* indirect block callbacks are invoked on bind/unbind events
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* on registered higher level devices (e.g. tunnel devices)
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*
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* tc_indr_block_cb_priv_list is used to lookup indirect callback
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* private data
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*
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*/
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struct list_head tc_indr_block_priv_list;
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struct mlx5_tun_entropy tun_entropy;
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/* protects unready_flows */
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struct mutex unready_flows_lock;
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struct list_head unready_flows;
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struct work_struct reoffload_flows_work;
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/* maps tun_info to a unique id*/
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struct mapping_ctx *tunnel_mapping;
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/* maps tun_enc_opts to a unique id*/
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struct mapping_ctx *tunnel_enc_opts_mapping;
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struct mlx5_tc_ct_priv *ct_priv;
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/* support eswitch vports bonding */
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struct mlx5e_rep_bond *bond;
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};
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struct mlx5e_rep_priv {
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struct mlx5_eswitch_rep *rep;
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struct mlx5e_neigh_update_table neigh_update;
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struct net_device *netdev;
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struct mlx5_flow_table *root_ft;
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struct mlx5_flow_handle *vport_rx_rule;
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struct list_head vport_sqs_list;
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struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */
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struct rtnl_link_stats64 prev_vf_vport_stats;
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};
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static inline
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struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep)
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{
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return rep->rep_data[REP_ETH].priv;
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}
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struct mlx5e_neigh {
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struct net_device *dev;
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union {
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__be32 v4;
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struct in6_addr v6;
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} dst_ip;
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int family;
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};
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struct mlx5e_neigh_hash_entry {
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struct rhash_head rhash_node;
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struct mlx5e_neigh m_neigh;
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struct mlx5e_priv *priv;
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/* Save the neigh hash entry in a list on the representor in
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* addition to the hash table. In order to iterate easily over the
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* neighbour entries. Used for stats query.
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*/
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struct list_head neigh_list;
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/* protects encap list */
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spinlock_t encap_list_lock;
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/* encap list sharing the same neigh */
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struct list_head encap_list;
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/* neigh hash entry can be deleted only when the refcount is zero.
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* refcount is needed to avoid neigh hash entry removal by TC, while
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* it's used by the neigh notification call.
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*/
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refcount_t refcnt;
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/* Save the last reported time offloaded trafic pass over one of the
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* neigh hash entry flows. Use it to periodically update the neigh
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* 'used' value and avoid neigh deleting by the kernel.
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*/
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unsigned long reported_lastuse;
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struct rcu_head rcu;
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};
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enum {
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/* set when the encap entry is successfully offloaded into HW */
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MLX5_ENCAP_ENTRY_VALID = BIT(0),
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MLX5_REFORMAT_DECAP = BIT(1),
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};
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struct mlx5e_decap_key {
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struct ethhdr key;
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};
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struct mlx5e_decap_entry {
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struct mlx5e_decap_key key;
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struct list_head flows;
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struct hlist_node hlist;
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refcount_t refcnt;
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struct completion res_ready;
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int compl_result;
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struct mlx5_pkt_reformat *pkt_reformat;
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struct rcu_head rcu;
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};
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struct mlx5e_encap_entry {
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/* attached neigh hash entry */
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struct mlx5e_neigh_hash_entry *nhe;
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/* neigh hash entry list of encaps sharing the same neigh */
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struct list_head encap_list;
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struct mlx5e_neigh m_neigh;
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/* a node of the eswitch encap hash table which keeping all the encap
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* entries
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*/
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struct hlist_node encap_hlist;
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struct list_head flows;
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struct mlx5_pkt_reformat *pkt_reformat;
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const struct ip_tunnel_info *tun_info;
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unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
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struct net_device *out_dev;
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int route_dev_ifindex;
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struct mlx5e_tc_tunnel *tunnel;
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int reformat_type;
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u8 flags;
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char *encap_header;
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int encap_size;
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refcount_t refcnt;
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struct completion res_ready;
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int compl_result;
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struct rcu_head rcu;
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};
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struct mlx5e_rep_sq {
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struct mlx5_flow_handle *send_to_vport_rule;
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struct list_head list;
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};
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void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev);
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void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev);
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int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv);
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void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv);
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int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev,
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struct net_device *lag_dev);
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void mlx5e_rep_bond_unslave(struct mlx5_eswitch *esw,
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const struct net_device *netdev,
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const struct net_device *lag_dev);
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int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup);
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bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv);
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int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv);
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void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv);
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void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv);
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bool mlx5e_eswitch_vf_rep(struct net_device *netdev);
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bool mlx5e_eswitch_uplink_rep(struct net_device *netdev);
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static inline bool mlx5e_eswitch_rep(struct net_device *netdev)
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{
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return mlx5e_eswitch_vf_rep(netdev) ||
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mlx5e_eswitch_uplink_rep(netdev);
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}
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#else /* CONFIG_MLX5_ESWITCH */
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static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; }
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static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; }
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static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {}
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#endif
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static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv)
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{
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return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv);
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}
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#endif /* __MLX5E_REP_H__ */
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