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 44 extern const struct mlx5e_rx_handlers mlx5e_rx_handlers_rep; 45 46 struct 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 60 struct mlx5_tc_ct_priv; 61 struct mlx5_tc_int_port_priv; 62 struct mlx5e_rep_bond; 63 struct mlx5e_tc_tun_encap; 64 struct mlx5e_post_act; 65 struct mlx5e_flow_meters; 66 67 struct mlx5_rep_uplink_priv { 68 /* indirect block callbacks are invoked on bind/unbind events 69 * on registered higher level devices (e.g. tunnel devices) 70 * 71 * tc_indr_block_cb_priv_list is used to lookup indirect callback 72 * private data 73 * 74 */ 75 struct list_head tc_indr_block_priv_list; 76 77 struct mlx5_tun_entropy tun_entropy; 78 79 /* protects unready_flows */ 80 struct mutex unready_flows_lock; 81 struct list_head unready_flows; 82 struct work_struct reoffload_flows_work; 83 84 /* maps tun_info to a unique id*/ 85 struct mapping_ctx *tunnel_mapping; 86 /* maps tun_enc_opts to a unique id*/ 87 struct mapping_ctx *tunnel_enc_opts_mapping; 88 89 struct mlx5e_post_act *post_act; 90 struct mlx5_tc_ct_priv *ct_priv; 91 struct mlx5e_tc_psample *tc_psample; 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 /* OVS internal port support */ 100 struct mlx5e_tc_int_port_priv *int_port_priv; 101 102 struct mlx5e_flow_meters *flow_meters; 103 104 /* tc action stats */ 105 struct mlx5e_tc_act_stats_handle *action_stats_handle; 106 107 struct work_struct mpesw_work; 108 }; 109 110 struct mlx5e_rep_priv { 111 struct mlx5_eswitch_rep *rep; 112 struct mlx5e_neigh_update_table neigh_update; 113 struct net_device *netdev; 114 struct mlx5_flow_table *root_ft; 115 struct mlx5_flow_handle *vport_rx_rule; 116 struct list_head vport_sqs_list; 117 struct mlx5_rep_uplink_priv uplink_priv; /* valid for uplink rep */ 118 struct rtnl_link_stats64 prev_vf_vport_stats; 119 struct mlx5_flow_handle *send_to_vport_meta_rule; 120 struct rhashtable tc_ht; 121 struct devlink_health_reporter *rep_vnic_reporter; 122 }; 123 124 static inline 125 struct mlx5e_rep_priv *mlx5e_rep_to_rep_priv(struct mlx5_eswitch_rep *rep) 126 { 127 return rep->rep_data[REP_ETH].priv; 128 } 129 130 struct mlx5e_neigh { 131 union { 132 __be32 v4; 133 struct in6_addr v6; 134 } dst_ip; 135 int family; 136 }; 137 138 struct mlx5e_neigh_hash_entry { 139 struct rhash_head rhash_node; 140 struct mlx5e_neigh m_neigh; 141 struct mlx5e_priv *priv; 142 struct net_device *neigh_dev; 143 144 /* Save the neigh hash entry in a list on the representor in 145 * addition to the hash table. In order to iterate easily over the 146 * neighbour entries. Used for stats query. 147 */ 148 struct list_head neigh_list; 149 150 /* protects encap list */ 151 spinlock_t encap_list_lock; 152 /* encap list sharing the same neigh */ 153 struct list_head encap_list; 154 155 /* neigh hash entry can be deleted only when the refcount is zero. 156 * refcount is needed to avoid neigh hash entry removal by TC, while 157 * it's used by the neigh notification call. 158 */ 159 refcount_t refcnt; 160 161 /* Save the last reported time offloaded traffic pass over one of the 162 * neigh hash entry flows. Use it to periodically update the neigh 163 * 'used' value and avoid neigh deleting by the kernel. 164 */ 165 unsigned long reported_lastuse; 166 167 struct rcu_head rcu; 168 }; 169 170 enum { 171 /* set when the encap entry is successfully offloaded into HW */ 172 MLX5_ENCAP_ENTRY_VALID = BIT(0), 173 MLX5_REFORMAT_DECAP = BIT(1), 174 MLX5_ENCAP_ENTRY_NO_ROUTE = BIT(2), 175 }; 176 177 struct mlx5e_decap_key { 178 struct ethhdr key; 179 }; 180 181 struct mlx5e_decap_entry { 182 struct mlx5e_decap_key key; 183 struct list_head flows; 184 struct hlist_node hlist; 185 refcount_t refcnt; 186 struct completion res_ready; 187 int compl_result; 188 struct mlx5_pkt_reformat *pkt_reformat; 189 struct rcu_head rcu; 190 }; 191 192 struct mlx5e_mpls_info { 193 u32 label; 194 u8 tc; 195 u8 bos; 196 u8 ttl; 197 }; 198 199 struct mlx5e_encap_entry { 200 /* attached neigh hash entry */ 201 struct mlx5e_neigh_hash_entry *nhe; 202 /* neigh hash entry list of encaps sharing the same neigh */ 203 struct list_head encap_list; 204 /* a node of the eswitch encap hash table which keeping all the encap 205 * entries 206 */ 207 struct hlist_node encap_hlist; 208 struct list_head flows; 209 struct list_head route_list; 210 struct mlx5_pkt_reformat *pkt_reformat; 211 const struct ip_tunnel_info *tun_info; 212 struct mlx5e_mpls_info mpls_info; 213 unsigned char h_dest[ETH_ALEN]; /* destination eth addr */ 214 215 struct net_device *out_dev; 216 int route_dev_ifindex; 217 struct mlx5e_tc_tunnel *tunnel; 218 int reformat_type; 219 u8 flags; 220 char *encap_header; 221 int encap_size; 222 refcount_t refcnt; 223 struct completion res_ready; 224 int compl_result; 225 struct rcu_head rcu; 226 }; 227 228 struct mlx5e_rep_sq { 229 struct mlx5_flow_handle *send_to_vport_rule; 230 struct mlx5_flow_handle *send_to_vport_rule_peer; 231 u32 sqn; 232 struct list_head list; 233 }; 234 235 int mlx5e_rep_init(void); 236 void mlx5e_rep_cleanup(void); 237 int mlx5e_rep_bond_init(struct mlx5e_rep_priv *rpriv); 238 void mlx5e_rep_bond_cleanup(struct mlx5e_rep_priv *rpriv); 239 int mlx5e_rep_bond_enslave(struct mlx5_eswitch *esw, struct net_device *netdev, 240 struct net_device *lag_dev); 241 void mlx5e_rep_bond_unslave(struct mlx5_eswitch *esw, 242 const struct net_device *netdev, 243 const struct net_device *lag_dev); 244 int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup); 245 246 bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id); 247 int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev, 248 void *sp); 249 250 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv); 251 void mlx5e_rep_activate_channels(struct mlx5e_priv *priv); 252 void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv); 253 254 void mlx5e_rep_queue_neigh_stats_work(struct mlx5e_priv *priv); 255 256 bool mlx5e_eswitch_vf_rep(const struct net_device *netdev); 257 bool mlx5e_eswitch_uplink_rep(const struct net_device *netdev); 258 static inline bool mlx5e_eswitch_rep(const struct net_device *netdev) 259 { 260 return mlx5e_eswitch_vf_rep(netdev) || 261 mlx5e_eswitch_uplink_rep(netdev); 262 } 263 264 #else /* CONFIG_MLX5_ESWITCH */ 265 static inline bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv) { return false; } 266 static inline void mlx5e_rep_activate_channels(struct mlx5e_priv *priv) {} 267 static inline void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv) {} 268 static inline int mlx5e_rep_init(void) { return 0; }; 269 static inline void mlx5e_rep_cleanup(void) {}; 270 static inline bool mlx5e_rep_has_offload_stats(const struct net_device *dev, 271 int attr_id) { return false; } 272 static inline int mlx5e_rep_get_offload_stats(int attr_id, 273 const struct net_device *dev, 274 void *sp) { return -EOPNOTSUPP; } 275 #endif 276 277 static inline bool mlx5e_is_vport_rep(struct mlx5e_priv *priv) 278 { 279 return (MLX5_ESWITCH_MANAGER(priv->mdev) && priv->ppriv); 280 } 281 #endif /* __MLX5E_REP_H__ */ 282