1/* 2 * Copyright (c) 2017, Mellanox Technologies. All rights reserved. 3 * 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: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 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. 22 * 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 30 * SOFTWARE. 31 */ 32 33#ifndef __MLX5E_REP_H__ 34#define __MLX5E_REP_H__ 35 36#include <net/ip_tunnels.h> 37#include <linux/rhashtable.h> 38#include <linux/mutex.h> 39#include "eswitch.h" 40#include "en.h" 41#include "lib/port_tun.h" 42 43#ifdef CONFIG_MLX5_ESWITCH 44extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_rep; 45 46struct mlx5e_neigh_update_table { 47 struct rhashtable neigh_ht; 48 /* Save the neigh hash entries in a list in addition to the hash table 49 * (neigh_ht). In order to iterate easily over the neigh entries. 50 * Used for stats query. 51 */ 52 struct list_head neigh_list; 53 /* protect lookup/remove operations */ 54 struct mutex encap_lock; 55 struct notifier_block netevent_nb; 56 struct delayed_work neigh_stats_work; 57 unsigned long min_interval; /* jiffies */ 58}; 59 60struct mlx5_tc_ct_priv; 61struct mlx5e_rep_bond; 62struct mlx5e_tc_tun_encap; 63 64struct mlx5_rep_uplink_priv { 65 /* Filters DB - instantiated by the uplink representor and shared by 66 * the uplink's VFs 67 */ 68 struct rhashtable tc_ht; 69 70 /* indirect block callbacks are invoked on bind/unbind events 71 * on registered higher level devices (e.g. tunnel devices) 72 * 73 * tc_indr_block_cb_priv_list is used to lookup indirect callback 74 * private data 75 * 76 */ 77 struct list_head tc_indr_block_priv_list; 78 79 struct mlx5_tun_entropy tun_entropy; 80 81 /* protects unready_flows */ 82 struct mutex unready_flows_lock; 83 struct list_head unready_flows; 84 struct work_struct reoffload_flows_work; 85 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; 90 91 struct mlx5_tc_ct_priv *ct_priv; 92 93 /* support eswitch vports bonding */ 94 struct mlx5e_rep_bond *bond; 95 96 /* tc tunneling encapsulation private data */ 97 struct mlx5e_tc_tun_encap *encap; 98}; 99 100struct mlx5e_rep_priv { 101 struct mlx5_eswitch_rep *rep; 102 struct mlx5e_neigh_update_table neigh_update; 103 struct net_device *netdev; 104 struct mlx5_flow_table *root_ft; 105 struct mlx5_flow_handle *vport_rx_rule; 106 struct list_head vport_sqs_list; 107 struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */ 108 struct rtnl_link_stats64 prev_vf_vport_stats; 109}; 110 111static inline 112struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep) 113{ 114 return rep->rep_data[REP_ETH].priv; 115} 116 117struct mlx5e_neigh { 118 union { 119 __be32 v4; 120 struct in6_addr v6; 121 } dst_ip; 122 int family; 123}; 124 125struct mlx5e_neigh_hash_entry { 126 struct rhash_head rhash_node; 127 struct mlx5e_neigh m_neigh; 128 struct mlx5e_priv *priv; 129 struct net_device *neigh_dev; 130 131 /* Save the neigh hash entry in a list on the representor in 132 * addition to the hash table. In order to iterate easily over the 133 * neighbour entries. Used for stats query. 134 */ 135 struct list_head neigh_list; 136 137 /* protects encap list */ 138 spinlock_t encap_list_lock; 139 /* encap list sharing the same neigh */ 140 struct list_head encap_list; 141 142 /* neigh hash entry can be deleted only when the refcount is zero. 143 * refcount is needed to avoid neigh hash entry removal by TC, while 144 * it's used by the neigh notification call. 145 */ 146 refcount_t refcnt; 147 148 /* Save the last reported time offloaded trafic pass over one of the 149 * neigh hash entry flows. Use it to periodically update the neigh 150 * 'used' value and avoid neigh deleting by the kernel. 151 */ 152 unsigned long reported_lastuse; 153 154 struct rcu_head rcu; 155}; 156 157enum { 158 /* set when the encap entry is successfully offloaded into HW */ 159 MLX5_ENCAP_ENTRY_VALID = BIT(0), 160 MLX5_REFORMAT_DECAP = BIT(1), 161 MLX5_ENCAP_ENTRY_NO_ROUTE = BIT(2), 162}; 163 164struct mlx5e_decap_key { 165 struct ethhdr key; 166}; 167 168struct mlx5e_decap_entry { 169 struct mlx5e_decap_key key; 170 struct list_head flows; 171 struct hlist_node hlist; 172 refcount_t refcnt; 173 struct completion res_ready; 174 int compl_result; 175 struct mlx5_pkt_reformat *pkt_reformat; 176 struct rcu_head rcu; 177}; 178 179struct mlx5e_encap_entry { 180 /* attached neigh hash entry */ 181 struct mlx5e_neigh_hash_entry *nhe; 182 /* neigh hash entry list of encaps sharing the same neigh */ 183 struct list_head encap_list; 184 /* a node of the eswitch encap hash table which keeping all the encap 185 * entries 186 */ 187 struct hlist_node encap_hlist; 188 struct list_head flows; 189 struct list_head route_list; 190 struct mlx5_pkt_reformat *pkt_reformat; 191 const struct ip_tunnel_info *tun_info; 192 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ 193 194 struct net_device *out_dev; 195 int route_dev_ifindex; 196 struct mlx5e_tc_tunnel *tunnel; 197 int reformat_type; 198 u8 flags; 199 char *encap_header; 200 int encap_size; 201 refcount_t refcnt; 202 struct completion res_ready; 203 int compl_result; 204 struct rcu_head rcu; 205}; 206 207struct mlx5e_rep_sq { 208 struct mlx5_flow_handle *send_to_vport_rule; 209 struct list_head list; 210}; 211 212int mlx5e_rep_init(void); 213void mlx5e_rep_cleanup(void); 214int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv); 215void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv); 216int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev, 217 struct net_device *lag_dev); 218void mlx5e_rep_bond_unslave(struct mlx5_eswitch *esw, 219 const struct net_device *netdev, 220 const struct net_device *lag_dev); 221int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup); 222 223bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv); 224int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv); 225void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv); 226 227void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv); 228 229bool mlx5e_eswitch_vf_rep(struct net_device *netdev); 230bool mlx5e_eswitch_uplink_rep(struct net_device *netdev); 231static inline bool mlx5e_eswitch_rep(struct net_device *netdev) 232{ 233 return mlx5e_eswitch_vf_rep(netdev) || 234 mlx5e_eswitch_uplink_rep(netdev); 235} 236 237#else /* CONFIG_MLX5_ESWITCH */ 238static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; } 239static inline int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv) { return 0; } 240static inline void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv) {} 241static inline int mlx5e_rep_init(void) { return 0; }; 242static inline void mlx5e_rep_cleanup(void) {}; 243#endif 244 245static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv) 246{ 247 return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv); 248} 249#endif /* __MLX5E_REP_H__ */ 250