drivers/net/ethernet/mellanox/mlx5/core/eswitch.h

   1 /*
   2  * Copyright (c) 2015, Mellanox Technologies, Ltd.  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 __MLX5_ESWITCH_H__
  34 #define __MLX5_ESWITCH_H__
  35
  36 #include <linux/if_ether.h>
  37 #include <linux/if_link.h>
  38 #include <linux/atomic.h>
  39 #include <linux/xarray.h>
  40 #include <net/devlink.h>
  41 #include <linux/mlx5/device.h>
  42 #include <linux/mlx5/eswitch.h>
  43 #include <linux/mlx5/vport.h>
  44 #include <linux/mlx5/fs.h>
  45 #include "lib/mpfs.h"
  46 #include "lib/fs_chains.h"
  47 #include "sf/sf.h"
  48 #include "en/tc_ct.h"
  49 #include "en/tc/sample.h"
  50
  51 enum mlx5_mapped_obj_type {
  52         MLX5_MAPPED_OBJ_CHAIN,
  53         MLX5_MAPPED_OBJ_SAMPLE,
  54 };
  55
  56 struct mlx5_mapped_obj {
  57         enum mlx5_mapped_obj_type type;
  58         union {
  59                 u32 chain;
  60                 struct {
  61                         u32 group_id;
  62                         u32 rate;
  63                         u32 trunc_size;
  64                         u32 tunnel_id;
  65                 } sample;
  66         };
  67 };
  68
  69 #ifdef CONFIG_MLX5_ESWITCH
  70
  71 #define ESW_OFFLOADS_DEFAULT_NUM_GROUPS 15
  72
  73 #define MLX5_MAX_UC_PER_VPORT(dev) \
  74         (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
  75
  76 #define MLX5_MAX_MC_PER_VPORT(dev) \
  77         (1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
  78
  79 #define mlx5_esw_has_fwd_fdb(dev) \
  80         MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_to_table)
  81
  82 #define esw_chains(esw) \
  83         ((esw)->fdb_table.offloads.esw_chains_priv)
  84
  85 enum {
  86         MAPPING_TYPE_CHAIN,
  87         MAPPING_TYPE_TUNNEL,
  88         MAPPING_TYPE_TUNNEL_ENC_OPTS,
  89         MAPPING_TYPE_LABELS,
  90         MAPPING_TYPE_ZONE,
  91 };
  92
  93 struct vport_ingress {
  94         struct mlx5_flow_table *acl;
  95         struct mlx5_flow_handle *allow_rule;
  96         struct {
  97                 struct mlx5_flow_group *allow_spoofchk_only_grp;
  98                 struct mlx5_flow_group *allow_untagged_spoofchk_grp;
  99                 struct mlx5_flow_group *allow_untagged_only_grp;
 100                 struct mlx5_flow_group *drop_grp;
 101                 struct mlx5_flow_handle *drop_rule;
 102                 struct mlx5_fc *drop_counter;
 103         } legacy;
 104         struct {
 105                 /* Optional group to add an FTE to do internal priority
 106                  * tagging on ingress packets.
 107                  */
 108                 struct mlx5_flow_group *metadata_prio_tag_grp;
 109                 /* Group to add default match-all FTE entry to tag ingress
 110                  * packet with metadata.
 111                  */
 112                 struct mlx5_flow_group *metadata_allmatch_grp;
 113                 struct mlx5_modify_hdr *modify_metadata;
 114                 struct mlx5_flow_handle *modify_metadata_rule;
 115         } offloads;
 116 };
 117
 118 struct vport_egress {
 119         struct mlx5_flow_table *acl;
 120         struct mlx5_flow_handle  *allowed_vlan;
 121         struct mlx5_flow_group *vlan_grp;
 122         union {
 123                 struct {
 124                         struct mlx5_flow_group *drop_grp;
 125                         struct mlx5_flow_handle *drop_rule;
 126                         struct mlx5_fc *drop_counter;
 127                 } legacy;
 128                 struct {
 129                         struct mlx5_flow_group *fwd_grp;
 130                         struct mlx5_flow_handle *fwd_rule;
 131                         struct mlx5_flow_handle *bounce_rule;
 132                         struct mlx5_flow_group *bounce_grp;
 133                 } offloads;
 134         };
 135 };
 136
 137 struct mlx5_vport_drop_stats {
 138         u64 rx_dropped;
 139         u64 tx_dropped;
 140 };
 141
 142 struct mlx5_vport_info {
 143         u8                      mac[ETH_ALEN];
 144         u16                     vlan;
 145         u64                     node_guid;
 146         int                     link_state;
 147         u8                      qos;
 148         u8                      spoofchk: 1;
 149         u8                      trusted: 1;
 150 };
 151
 152 /* Vport context events */
 153 enum mlx5_eswitch_vport_event {
 154         MLX5_VPORT_UC_ADDR_CHANGE = BIT(0),
 155         MLX5_VPORT_MC_ADDR_CHANGE = BIT(1),
 156         MLX5_VPORT_PROMISC_CHANGE = BIT(3),
 157 };
 158
 159 struct mlx5_vport {
 160         struct mlx5_core_dev    *dev;
 161         struct hlist_head       uc_list[MLX5_L2_ADDR_HASH_SIZE];
 162         struct hlist_head       mc_list[MLX5_L2_ADDR_HASH_SIZE];
 163         struct mlx5_flow_handle *promisc_rule;
 164         struct mlx5_flow_handle *allmulti_rule;
 165         struct work_struct      vport_change_handler;
 166
 167         struct vport_ingress    ingress;
 168         struct vport_egress     egress;
 169         u32                     default_metadata;
 170         u32                     metadata;
 171
 172         struct mlx5_vport_info  info;
 173
 174         struct {
 175                 bool            enabled;
 176                 u32             esw_tsar_ix;
 177                 u32             bw_share;
 178                 u32 min_rate;
 179                 u32 max_rate;
 180                 struct mlx5_esw_rate_group *group;
 181         } qos;
 182
 183         u16 vport;
 184         bool                    enabled;
 185         enum mlx5_eswitch_vport_event enabled_events;
 186         int index;
 187         struct devlink_port *dl_port;
 188 };
 189
 190 struct mlx5_esw_indir_table;
 191
 192 struct mlx5_eswitch_fdb {
 193         union {
 194                 struct legacy_fdb {
 195                         struct mlx5_flow_table *fdb;
 196                         struct mlx5_flow_group *addr_grp;
 197                         struct mlx5_flow_group *allmulti_grp;
 198                         struct mlx5_flow_group *promisc_grp;
 199                         struct mlx5_flow_table *vepa_fdb;
 200                         struct mlx5_flow_handle *vepa_uplink_rule;
 201                         struct mlx5_flow_handle *vepa_star_rule;
 202                 } legacy;
 203
 204                 struct offloads_fdb {
 205                         struct mlx5_flow_namespace *ns;
 206                         struct mlx5_flow_table *tc_miss_table;
 207                         struct mlx5_flow_table *slow_fdb;
 208                         struct mlx5_flow_group *send_to_vport_grp;
 209                         struct mlx5_flow_group *send_to_vport_meta_grp;
 210                         struct mlx5_flow_group *peer_miss_grp;
 211                         struct mlx5_flow_handle **peer_miss_rules;
 212                         struct mlx5_flow_group *miss_grp;
 213                         struct mlx5_flow_handle **send_to_vport_meta_rules;
 214                         struct mlx5_flow_handle *miss_rule_uni;
 215                         struct mlx5_flow_handle *miss_rule_multi;
 216                         int vlan_push_pop_refcount;
 217
 218                         struct mlx5_fs_chains *esw_chains_priv;
 219                         struct {
 220                                 DECLARE_HASHTABLE(table, 8);
 221                                 /* Protects vports.table */
 222                                 struct mutex lock;
 223                         } vports;
 224
 225                         struct mlx5_esw_indir_table *indir;
 226
 227                 } offloads;
 228         };
 229         u32 flags;
 230 };
 231
 232 struct mlx5_esw_offload {
 233         struct mlx5_flow_table *ft_offloads_restore;
 234         struct mlx5_flow_group *restore_group;
 235         struct mlx5_modify_hdr *restore_copy_hdr_id;
 236         struct mapping_ctx *reg_c0_obj_pool;
 237
 238         struct mlx5_flow_table *ft_offloads;
 239         struct mlx5_flow_group *vport_rx_group;
 240         struct xarray vport_reps;
 241         struct list_head peer_flows;
 242         struct mutex peer_mutex;
 243         struct mutex encap_tbl_lock; /* protects encap_tbl */
 244         DECLARE_HASHTABLE(encap_tbl, 8);
 245         struct mutex decap_tbl_lock; /* protects decap_tbl */
 246         DECLARE_HASHTABLE(decap_tbl, 8);
 247         struct mod_hdr_tbl mod_hdr;
 248         DECLARE_HASHTABLE(termtbl_tbl, 8);
 249         struct mutex termtbl_mutex; /* protects termtbl hash */
 250         struct xarray vhca_map;
 251         const struct mlx5_eswitch_rep_ops *rep_ops[NUM_REP_TYPES];
 252         u8 inline_mode;
 253         atomic64_t num_flows;
 254         enum devlink_eswitch_encap_mode encap;
 255         struct ida vport_metadata_ida;
 256         unsigned int host_number; /* ECPF supports one external host */
 257 };
 258
 259 /* E-Switch MC FDB table hash node */
 260 struct esw_mc_addr { /* SRIOV only */
 261         struct l2addr_node     node;
 262         struct mlx5_flow_handle *uplink_rule; /* Forward to uplink rule */
 263         u32                    refcnt;
 264 };
 265
 266 struct mlx5_host_work {
 267         struct work_struct      work;
 268         struct mlx5_eswitch     *esw;
 269 };
 270
 271 struct mlx5_esw_functions {
 272         struct mlx5_nb          nb;
 273         u16                     num_vfs;
 274 };
 275
 276 enum {
 277         MLX5_ESWITCH_VPORT_MATCH_METADATA = BIT(0),
 278         MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED = BIT(1),
 279 };
 280
 281 struct mlx5_esw_bridge_offloads;
 282
 283 struct mlx5_eswitch {
 284         struct mlx5_core_dev    *dev;
 285         struct mlx5_nb          nb;
 286         struct mlx5_eswitch_fdb fdb_table;
 287         /* legacy data structures */
 288         struct hlist_head       mc_table[MLX5_L2_ADDR_HASH_SIZE];
 289         struct esw_mc_addr mc_promisc;
 290         /* end of legacy */
 291         struct workqueue_struct *work_queue;
 292         struct xarray vports;
 293         u32 flags;
 294         int                     total_vports;
 295         int                     enabled_vports;
 296         /* Synchronize between vport change events
 297          * and async SRIOV admin state changes
 298          */
 299         struct mutex            state_lock;
 300
 301         /* Protects eswitch mode change that occurs via one or more
 302          * user commands, i.e. sriov state change, devlink commands.
 303          */
 304         struct rw_semaphore mode_lock;
 305         atomic64_t user_count;
 306
 307         struct {
 308                 bool            enabled;
 309                 u32             root_tsar_ix;
 310                 struct mlx5_esw_rate_group *group0;
 311                 struct list_head groups; /* Protected by esw->state_lock */
 312         } qos;
 313
 314         struct mlx5_esw_bridge_offloads *br_offloads;
 315         struct mlx5_esw_offload offloads;
 316         int                     mode;
 317         u16                     manager_vport;
 318         u16                     first_host_vport;
 319         struct mlx5_esw_functions esw_funcs;
 320         struct {
 321                 u32             large_group_num;
 322         }  params;
 323         struct blocking_notifier_head n_head;
 324         struct lock_class_key mode_lock_key;
 325 };
 326
 327 void esw_offloads_disable(struct mlx5_eswitch *esw);
 328 int esw_offloads_enable(struct mlx5_eswitch *esw);
 329 void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw);
 330 int esw_offloads_init_reps(struct mlx5_eswitch *esw);
 331
 332 bool mlx5_esw_vport_match_metadata_supported(const struct mlx5_eswitch *esw);
 333 int mlx5_esw_offloads_vport_metadata_set(struct mlx5_eswitch *esw, bool enable);
 334 u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw);
 335 void mlx5_esw_match_metadata_free(struct mlx5_eswitch *esw, u32 metadata);
 336
 337 int mlx5_esw_qos_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num, u32 rate_mbps);
 338
 339 /* E-Switch API */
 340 int mlx5_eswitch_init(struct mlx5_core_dev *dev);
 341 void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
 342
 343 #define MLX5_ESWITCH_IGNORE_NUM_VFS (-1)
 344 int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int mode, int num_vfs);
 345 int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs);
 346 void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw, bool clear_vf);
 347 void mlx5_eswitch_disable(struct mlx5_eswitch *esw, bool clear_vf);
 348 int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
 349                                u16 vport, const u8 *mac);
 350 int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
 351                                  u16 vport, int link_state);
 352 int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
 353                                 u16 vport, u16 vlan, u8 qos);
 354 int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
 355                                     u16 vport, bool spoofchk);
 356 int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
 357                                  u16 vport_num, bool setting);
 358 int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, u16 vport,
 359                                 u32 max_rate, u32 min_rate);
 360 int mlx5_esw_qos_vport_update_group(struct mlx5_eswitch *esw,
 361                                     struct mlx5_vport *vport,
 362                                     struct mlx5_esw_rate_group *group,
 363                                     struct netlink_ext_ack *extack);
 364 int mlx5_eswitch_set_vepa(struct mlx5_eswitch *esw, u8 setting);
 365 int mlx5_eswitch_get_vepa(struct mlx5_eswitch *esw, u8 *setting);
 366 int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
 367                                   u16 vport, struct ifla_vf_info *ivi);
 368 int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
 369                                  u16 vport,
 370                                  struct ifla_vf_stats *vf_stats);
 371 void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule);
 372
 373 int mlx5_eswitch_modify_esw_vport_context(struct mlx5_core_dev *dev, u16 vport,
 374                                           bool other_vport, void *in);
 375
 376 struct mlx5_flow_spec;
 377 struct mlx5_esw_flow_attr;
 378 struct mlx5_termtbl_handle;
 379
 380 bool
 381 mlx5_eswitch_termtbl_required(struct mlx5_eswitch *esw,
 382                               struct mlx5_flow_attr *attr,
 383                               struct mlx5_flow_act *flow_act,
 384                               struct mlx5_flow_spec *spec);
 385
 386 struct mlx5_flow_handle *
 387 mlx5_eswitch_add_termtbl_rule(struct mlx5_eswitch *esw,
 388                               struct mlx5_flow_table *ft,
 389                               struct mlx5_flow_spec *spec,
 390                               struct mlx5_esw_flow_attr *attr,
 391                               struct mlx5_flow_act *flow_act,
 392                               struct mlx5_flow_destination *dest,
 393                               int num_dest);
 394
 395 void
 396 mlx5_eswitch_termtbl_put(struct mlx5_eswitch *esw,
 397                          struct mlx5_termtbl_handle *tt);
 398
 399 void
 400 mlx5_eswitch_clear_rule_source_port(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec);
 401
 402 struct mlx5_flow_handle *
 403 mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
 404                                 struct mlx5_flow_spec *spec,
 405                                 struct mlx5_flow_attr *attr);
 406 struct mlx5_flow_handle *
 407 mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw,
 408                           struct mlx5_flow_spec *spec,
 409                           struct mlx5_flow_attr *attr);
 410 void
 411 mlx5_eswitch_del_offloaded_rule(struct mlx5_eswitch *esw,
 412                                 struct mlx5_flow_handle *rule,
 413                                 struct mlx5_flow_attr *attr);
 414 void
 415 mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw,
 416                           struct mlx5_flow_handle *rule,
 417                           struct mlx5_flow_attr *attr);
 418
 419 struct mlx5_flow_handle *
 420 mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, u16 vport,
 421                                   struct mlx5_flow_destination *dest);
 422
 423 enum {
 424         SET_VLAN_STRIP  = BIT(0),
 425         SET_VLAN_INSERT = BIT(1)
 426 };
 427
 428 enum mlx5_flow_match_level {
 429         MLX5_MATCH_NONE = MLX5_INLINE_MODE_NONE,
 430         MLX5_MATCH_L2   = MLX5_INLINE_MODE_L2,
 431         MLX5_MATCH_L3   = MLX5_INLINE_MODE_IP,
 432         MLX5_MATCH_L4   = MLX5_INLINE_MODE_TCP_UDP,
 433 };
 434
 435 /* current maximum for flow based vport multicasting */
 436 #define MLX5_MAX_FLOW_FWD_VPORTS 2
 437
 438 enum {
 439         MLX5_ESW_DEST_ENCAP         = BIT(0),
 440         MLX5_ESW_DEST_ENCAP_VALID   = BIT(1),
 441         MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE  = BIT(2),
 442 };
 443
 444 enum {
 445         MLX5_ESW_ATTR_FLAG_VLAN_HANDLED  = BIT(0),
 446         MLX5_ESW_ATTR_FLAG_SLOW_PATH     = BIT(1),
 447         MLX5_ESW_ATTR_FLAG_NO_IN_PORT    = BIT(2),
 448         MLX5_ESW_ATTR_FLAG_SRC_REWRITE   = BIT(3),
 449         MLX5_ESW_ATTR_FLAG_SAMPLE        = BIT(4),
 450 };
 451
 452 struct mlx5_esw_flow_attr {
 453         struct mlx5_eswitch_rep *in_rep;
 454         struct mlx5_core_dev    *in_mdev;
 455         struct mlx5_core_dev    *counter_dev;
 456
 457         int split_count;
 458         int out_count;
 459
 460         __be16  vlan_proto[MLX5_FS_VLAN_DEPTH];
 461         u16     vlan_vid[MLX5_FS_VLAN_DEPTH];
 462         u8      vlan_prio[MLX5_FS_VLAN_DEPTH];
 463         u8      total_vlan;
 464         struct {
 465                 u32 flags;
 466                 struct mlx5_eswitch_rep *rep;
 467                 struct mlx5_pkt_reformat *pkt_reformat;
 468                 struct mlx5_core_dev *mdev;
 469                 struct mlx5_termtbl_handle *termtbl;
 470                 int src_port_rewrite_act_id;
 471         } dests[MLX5_MAX_FLOW_FWD_VPORTS];
 472         struct mlx5_rx_tun_attr *rx_tun_attr;
 473         struct mlx5_pkt_reformat *decap_pkt_reformat;
 474 };
 475
 476 int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
 477                                   struct netlink_ext_ack *extack);
 478 int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
 479 int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
 480                                          struct netlink_ext_ack *extack);
 481 int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode);
 482 int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
 483                                         enum devlink_eswitch_encap_mode encap,
 484                                         struct netlink_ext_ack *extack);
 485 int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink,
 486                                         enum devlink_eswitch_encap_mode *encap);
 487 int mlx5_devlink_port_function_hw_addr_get(struct devlink_port *port,
 488                                            u8 *hw_addr, int *hw_addr_len,
 489                                            struct netlink_ext_ack *extack);
 490 int mlx5_devlink_port_function_hw_addr_set(struct devlink_port *port,
 491                                            const u8 *hw_addr, int hw_addr_len,
 492                                            struct netlink_ext_ack *extack);
 493
 494 void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
 495
 496 int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
 497                                  struct mlx5_flow_attr *attr);
 498 int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
 499                                  struct mlx5_flow_attr *attr);
 500 int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
 501                                   u16 vport, u16 vlan, u8 qos, u8 set_flags);
 502
 503 static inline bool mlx5_esw_qos_enabled(struct mlx5_eswitch *esw)
 504 {
 505         return esw->qos.enabled;
 506 }
 507
 508 static inline bool mlx5_eswitch_vlan_actions_supported(struct mlx5_core_dev *dev,
 509                                                        u8 vlan_depth)
 510 {
 511         bool ret = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan) &&
 512                    MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan);
 513
 514         if (vlan_depth == 1)
 515                 return ret;
 516
 517         return  ret && MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan_2) &&
 518                 MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan_2);
 519 }
 520
 521 bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0,
 522                          struct mlx5_core_dev *dev1);
 523 bool mlx5_esw_multipath_prereq(struct mlx5_core_dev *dev0,
 524                                struct mlx5_core_dev *dev1);
 525
 526 const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev);
 527
 528 #define MLX5_DEBUG_ESWITCH_MASK BIT(3)
 529
 530 #define esw_info(__dev, format, ...)                    \
 531         dev_info((__dev)->device, "E-Switch: " format, ##__VA_ARGS__)
 532
 533 #define esw_warn(__dev, format, ...)                    \
 534         dev_warn((__dev)->device, "E-Switch: " format, ##__VA_ARGS__)
 535
 536 #define esw_debug(dev, format, ...)                             \
 537         mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)
 538
 539 static inline bool mlx5_esw_allowed(const struct mlx5_eswitch *esw)
 540 {
 541         return esw && MLX5_ESWITCH_MANAGER(esw->dev);
 542 }
 543
 544 /* The returned number is valid only when the dev is eswitch manager. */
 545 static inline u16 mlx5_eswitch_manager_vport(struct mlx5_core_dev *dev)
 546 {
 547         return mlx5_core_is_ecpf_esw_manager(dev) ?
 548                 MLX5_VPORT_ECPF : MLX5_VPORT_PF;
 549 }
 550
 551 static inline bool
 552 mlx5_esw_is_manager_vport(const struct mlx5_eswitch *esw, u16 vport_num)
 553 {
 554         return esw->manager_vport == vport_num;
 555 }
 556
 557 static inline u16 mlx5_eswitch_first_host_vport_num(struct mlx5_core_dev *dev)
 558 {
 559         return mlx5_core_is_ecpf_esw_manager(dev) ?
 560                 MLX5_VPORT_PF : MLX5_VPORT_FIRST_VF;
 561 }
 562
 563 static inline bool mlx5_eswitch_is_funcs_handler(const struct mlx5_core_dev *dev)
 564 {
 565         return mlx5_core_is_ecpf_esw_manager(dev);
 566 }
 567
 568 static inline unsigned int
 569 mlx5_esw_vport_to_devlink_port_index(const struct mlx5_core_dev *dev,
 570                                      u16 vport_num)
 571 {
 572         return (MLX5_CAP_GEN(dev, vhca_id) << 16) | vport_num;
 573 }
 574
 575 static inline u16
 576 mlx5_esw_devlink_port_index_to_vport_num(unsigned int dl_port_index)
 577 {
 578         return dl_port_index & 0xffff;
 579 }
 580
 581 /* TODO: This mlx5e_tc function shouldn't be called by eswitch */
 582 void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
 583
 584 /* Each mark identifies eswitch vport type.
 585  * MLX5_ESW_VPT_HOST_FN is used to identify both PF and VF ports using
 586  * a single mark.
 587  * MLX5_ESW_VPT_VF identifies a SRIOV VF vport.
 588  * MLX5_ESW_VPT_SF identifies SF vport.
 589  */
 590 #define MLX5_ESW_VPT_HOST_FN XA_MARK_0
 591 #define MLX5_ESW_VPT_VF XA_MARK_1
 592 #define MLX5_ESW_VPT_SF XA_MARK_2
 593
 594 /* The vport iterator is valid only after vport are initialized in mlx5_eswitch_init.
 595  * Borrowed the idea from xa_for_each_marked() but with support for desired last element.
 596  */
 597
 598 #define mlx5_esw_for_each_vport(esw, index, vport) \
 599         xa_for_each(&((esw)->vports), index, vport)
 600
 601 #define mlx5_esw_for_each_entry_marked(xa, index, entry, last, filter)  \
 602         for (index = 0, entry = xa_find(xa, &index, last, filter); \
 603              entry; entry = xa_find_after(xa, &index, last, filter))
 604
 605 #define mlx5_esw_for_each_vport_marked(esw, index, vport, last, filter) \
 606         mlx5_esw_for_each_entry_marked(&((esw)->vports), index, vport, last, filter)
 607
 608 #define mlx5_esw_for_each_vf_vport(esw, index, vport, last)     \
 609         mlx5_esw_for_each_vport_marked(esw, index, vport, last, MLX5_ESW_VPT_VF)
 610
 611 #define mlx5_esw_for_each_host_func_vport(esw, index, vport, last)      \
 612         mlx5_esw_for_each_vport_marked(esw, index, vport, last, MLX5_ESW_VPT_HOST_FN)
 613
 614 struct mlx5_eswitch *mlx5_devlink_eswitch_get(struct devlink *devlink);
 615 struct mlx5_vport *__must_check
 616 mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num);
 617
 618 bool mlx5_eswitch_is_vf_vport(struct mlx5_eswitch *esw, u16 vport_num);
 619 bool mlx5_esw_is_sf_vport(struct mlx5_eswitch *esw, u16 vport_num);
 620
 621 int mlx5_esw_funcs_changed_handler(struct notifier_block *nb, unsigned long type, void *data);
 622
 623 int
 624 mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
 625                                  enum mlx5_eswitch_vport_event enabled_events);
 626 void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw);
 627
 628 int mlx5_esw_vport_enable(struct mlx5_eswitch *esw, u16 vport_num,
 629                           enum mlx5_eswitch_vport_event enabled_events);
 630 void mlx5_esw_vport_disable(struct mlx5_eswitch *esw, u16 vport_num);
 631
 632 int
 633 esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
 634                                      struct mlx5_vport *vport);
 635 void
 636 esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
 637                                       struct mlx5_vport *vport);
 638
 639 struct esw_vport_tbl_namespace {
 640         int max_fte;
 641         int max_num_groups;
 642         u32 flags;
 643 };
 644
 645 struct mlx5_vport_tbl_attr {
 646         u32 chain;
 647         u16 prio;
 648         u16 vport;
 649         const struct esw_vport_tbl_namespace *vport_ns;
 650 };
 651
 652 struct mlx5_flow_table *
 653 mlx5_esw_vporttbl_get(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr);
 654 void
 655 mlx5_esw_vporttbl_put(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr);
 656
 657 struct mlx5_flow_handle *
 658 esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag);
 659
 660 int esw_offloads_load_rep(struct mlx5_eswitch *esw, u16 vport_num);
 661 void esw_offloads_unload_rep(struct mlx5_eswitch *esw, u16 vport_num);
 662
 663 int mlx5_esw_offloads_rep_load(struct mlx5_eswitch *esw, u16 vport_num);
 664 void mlx5_esw_offloads_rep_unload(struct mlx5_eswitch *esw, u16 vport_num);
 665
 666 int mlx5_eswitch_load_vport(struct mlx5_eswitch *esw, u16 vport_num,
 667                             enum mlx5_eswitch_vport_event enabled_events);
 668 void mlx5_eswitch_unload_vport(struct mlx5_eswitch *esw, u16 vport_num);
 669
 670 int mlx5_eswitch_load_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs,
 671                                 enum mlx5_eswitch_vport_event enabled_events);
 672 void mlx5_eswitch_unload_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs);
 673
 674 int mlx5_esw_offloads_devlink_port_register(struct mlx5_eswitch *esw, u16 vport_num);
 675 void mlx5_esw_offloads_devlink_port_unregister(struct mlx5_eswitch *esw, u16 vport_num);
 676 struct devlink_port *mlx5_esw_offloads_devlink_port(struct mlx5_eswitch *esw, u16 vport_num);
 677
 678 int mlx5_esw_devlink_sf_port_register(struct mlx5_eswitch *esw, struct devlink_port *dl_port,
 679                                       u16 vport_num, u32 controller, u32 sfnum);
 680 void mlx5_esw_devlink_sf_port_unregister(struct mlx5_eswitch *esw, u16 vport_num);
 681
 682 int mlx5_esw_offloads_sf_vport_enable(struct mlx5_eswitch *esw, struct devlink_port *dl_port,
 683                                       u16 vport_num, u32 controller, u32 sfnum);
 684 void mlx5_esw_offloads_sf_vport_disable(struct mlx5_eswitch *esw, u16 vport_num);
 685 int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *sf_base_id);
 686
 687 int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num);
 688 void mlx5_esw_vport_vhca_id_clear(struct mlx5_eswitch *esw, u16 vport_num);
 689 int mlx5_eswitch_vhca_id_to_vport(struct mlx5_eswitch *esw, u16 vhca_id, u16 *vport_num);
 690
 691 /**
 692  * mlx5_esw_event_info - Indicates eswitch mode changed/changing.
 693  *
 694  * @new_mode: New mode of eswitch.
 695  */
 696 struct mlx5_esw_event_info {
 697         u16 new_mode;
 698 };
 699
 700 int mlx5_esw_event_notifier_register(struct mlx5_eswitch *esw, struct notifier_block *n);
 701 void mlx5_esw_event_notifier_unregister(struct mlx5_eswitch *esw, struct notifier_block *n);
 702
 703 bool mlx5_esw_hold(struct mlx5_core_dev *dev);
 704 void mlx5_esw_release(struct mlx5_core_dev *dev);
 705 void mlx5_esw_get(struct mlx5_core_dev *dev);
 706 void mlx5_esw_put(struct mlx5_core_dev *dev);
 707 int mlx5_esw_try_lock(struct mlx5_eswitch *esw);
 708 void mlx5_esw_unlock(struct mlx5_eswitch *esw);
 709 void mlx5_esw_lock(struct mlx5_eswitch *esw);
 710
 711 void esw_vport_change_handle_locked(struct mlx5_vport *vport);
 712
 713 bool mlx5_esw_offloads_controller_valid(const struct mlx5_eswitch *esw, u32 controller);
 714
 715 int mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw,
 716                                             struct mlx5_eswitch *slave_esw);
 717 void mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw,
 718                                               struct mlx5_eswitch *slave_esw);
 719 int mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw);
 720
 721 #else  /* CONFIG_MLX5_ESWITCH */
 722 /* eswitch API stubs */
 723 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
 724 static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {}
 725 static inline int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs) { return 0; }
 726 static inline void mlx5_eswitch_disable(struct mlx5_eswitch *esw, bool clear_vf) {}
 727 static inline bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1) { return true; }
 728 static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev) { return false; }
 729 static inline
 730 int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw, u16 vport, int link_state) { return 0; }
 731 static inline const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev)
 732 {
 733         return ERR_PTR(-EOPNOTSUPP);
 734 }
 735
 736 static inline void mlx5_esw_unlock(struct mlx5_eswitch *esw) { return; }
 737 static inline void mlx5_esw_lock(struct mlx5_eswitch *esw) { return; }
 738
 739 static inline struct mlx5_flow_handle *
 740 esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag)
 741 {
 742         return ERR_PTR(-EOPNOTSUPP);
 743 }
 744
 745 static inline unsigned int
 746 mlx5_esw_vport_to_devlink_port_index(const struct mlx5_core_dev *dev,
 747                                      u16 vport_num)
 748 {
 749         return vport_num;
 750 }
 751
 752 static inline int
 753 mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw,
 754                                         struct mlx5_eswitch *slave_esw)
 755 {
 756         return 0;
 757 }
 758
 759 static inline void
 760 mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw,
 761                                          struct mlx5_eswitch *slave_esw) {}
 762
 763 static inline int
 764 mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw)
 765 {
 766         return 0;
 767 }
 768 #endif /* CONFIG_MLX5_ESWITCH */
 769
 770 #endif /* __MLX5_ESWITCH_H__ */