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0001 /*
0002  * Copyright (c) 2015, Mellanox Technologies, Ltd.  All rights reserved.
0003  *
0004  * This software is available to you under a choice of one of two
0005  * licenses.  You may choose to be licensed under the terms of the GNU
0006  * General Public License (GPL) Version 2, available from the file
0007  * COPYING in the main directory of this source tree, or the
0008  * OpenIB.org BSD license below:
0009  *
0010  *     Redistribution and use in source and binary forms, with or
0011  *     without modification, are permitted provided that the following
0012  *     conditions are met:
0013  *
0014  *      - Redistributions of source code must retain the above
0015  *        copyright notice, this list of conditions and the following
0016  *        disclaimer.
0017  *
0018  *      - Redistributions in binary form must reproduce the above
0019  *        copyright notice, this list of conditions and the following
0020  *        disclaimer in the documentation and/or other materials
0021  *        provided with the distribution.
0022  *
0023  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
0024  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
0025  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
0026  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
0027  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
0028  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
0029  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
0030  * SOFTWARE.
0031  */
0032 
0033 #ifndef __MLX5_ESWITCH_H__
0034 #define __MLX5_ESWITCH_H__
0035 
0036 #include <linux/if_ether.h>
0037 #include <linux/if_link.h>
0038 #include <linux/atomic.h>
0039 #include <linux/xarray.h>
0040 #include <net/devlink.h>
0041 #include <linux/mlx5/device.h>
0042 #include <linux/mlx5/eswitch.h>
0043 #include <linux/mlx5/vport.h>
0044 #include <linux/mlx5/fs.h>
0045 #include "lib/mpfs.h"
0046 #include "lib/fs_chains.h"
0047 #include "sf/sf.h"
0048 #include "en/tc_ct.h"
0049 #include "en/tc/sample.h"
0050 
0051 enum mlx5_mapped_obj_type {
0052     MLX5_MAPPED_OBJ_CHAIN,
0053     MLX5_MAPPED_OBJ_SAMPLE,
0054     MLX5_MAPPED_OBJ_INT_PORT_METADATA,
0055 };
0056 
0057 struct mlx5_mapped_obj {
0058     enum mlx5_mapped_obj_type type;
0059     union {
0060         u32 chain;
0061         struct {
0062             u32 group_id;
0063             u32 rate;
0064             u32 trunc_size;
0065             u32 tunnel_id;
0066         } sample;
0067         u32 int_port_metadata;
0068     };
0069 };
0070 
0071 #ifdef CONFIG_MLX5_ESWITCH
0072 
0073 #define ESW_OFFLOADS_DEFAULT_NUM_GROUPS 15
0074 
0075 #define MLX5_MAX_UC_PER_VPORT(dev) \
0076     (1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
0077 
0078 #define MLX5_MAX_MC_PER_VPORT(dev) \
0079     (1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
0080 
0081 #define mlx5_esw_has_fwd_fdb(dev) \
0082     MLX5_CAP_ESW_FLOWTABLE(dev, fdb_multi_path_to_table)
0083 
0084 #define esw_chains(esw) \
0085     ((esw)->fdb_table.offloads.esw_chains_priv)
0086 
0087 enum {
0088     MAPPING_TYPE_CHAIN,
0089     MAPPING_TYPE_TUNNEL,
0090     MAPPING_TYPE_TUNNEL_ENC_OPTS,
0091     MAPPING_TYPE_LABELS,
0092     MAPPING_TYPE_ZONE,
0093     MAPPING_TYPE_INT_PORT,
0094 };
0095 
0096 struct vport_ingress {
0097     struct mlx5_flow_table *acl;
0098     struct mlx5_flow_handle *allow_rule;
0099     struct {
0100         struct mlx5_flow_group *allow_spoofchk_only_grp;
0101         struct mlx5_flow_group *allow_untagged_spoofchk_grp;
0102         struct mlx5_flow_group *allow_untagged_only_grp;
0103         struct mlx5_flow_group *drop_grp;
0104         struct mlx5_flow_handle *drop_rule;
0105         struct mlx5_fc *drop_counter;
0106     } legacy;
0107     struct {
0108         /* Optional group to add an FTE to do internal priority
0109          * tagging on ingress packets.
0110          */
0111         struct mlx5_flow_group *metadata_prio_tag_grp;
0112         /* Group to add default match-all FTE entry to tag ingress
0113          * packet with metadata.
0114          */
0115         struct mlx5_flow_group *metadata_allmatch_grp;
0116         /* Optional group to add a drop all rule */
0117         struct mlx5_flow_group *drop_grp;
0118         struct mlx5_modify_hdr *modify_metadata;
0119         struct mlx5_flow_handle *modify_metadata_rule;
0120         struct mlx5_flow_handle *drop_rule;
0121     } offloads;
0122 };
0123 
0124 struct vport_egress {
0125     struct mlx5_flow_table *acl;
0126     struct mlx5_flow_handle  *allowed_vlan;
0127     struct mlx5_flow_group *vlan_grp;
0128     union {
0129         struct {
0130             struct mlx5_flow_group *drop_grp;
0131             struct mlx5_flow_handle *drop_rule;
0132             struct mlx5_fc *drop_counter;
0133         } legacy;
0134         struct {
0135             struct mlx5_flow_group *fwd_grp;
0136             struct mlx5_flow_handle *fwd_rule;
0137             struct mlx5_flow_handle *bounce_rule;
0138             struct mlx5_flow_group *bounce_grp;
0139         } offloads;
0140     };
0141 };
0142 
0143 struct mlx5_vport_drop_stats {
0144     u64 rx_dropped;
0145     u64 tx_dropped;
0146 };
0147 
0148 struct mlx5_vport_info {
0149     u8                      mac[ETH_ALEN];
0150     u16                     vlan;
0151     u64                     node_guid;
0152     int                     link_state;
0153     u8                      qos;
0154     u8                      spoofchk: 1;
0155     u8                      trusted: 1;
0156 };
0157 
0158 /* Vport context events */
0159 enum mlx5_eswitch_vport_event {
0160     MLX5_VPORT_UC_ADDR_CHANGE = BIT(0),
0161     MLX5_VPORT_MC_ADDR_CHANGE = BIT(1),
0162     MLX5_VPORT_PROMISC_CHANGE = BIT(3),
0163 };
0164 
0165 struct mlx5_vport {
0166     struct mlx5_core_dev    *dev;
0167     struct hlist_head       uc_list[MLX5_L2_ADDR_HASH_SIZE];
0168     struct hlist_head       mc_list[MLX5_L2_ADDR_HASH_SIZE];
0169     struct mlx5_flow_handle *promisc_rule;
0170     struct mlx5_flow_handle *allmulti_rule;
0171     struct work_struct      vport_change_handler;
0172 
0173     struct vport_ingress    ingress;
0174     struct vport_egress     egress;
0175     u32                     default_metadata;
0176     u32                     metadata;
0177 
0178     struct mlx5_vport_info  info;
0179 
0180     struct {
0181         bool            enabled;
0182         u32             esw_tsar_ix;
0183         u32             bw_share;
0184         u32 min_rate;
0185         u32 max_rate;
0186         struct mlx5_esw_rate_group *group;
0187     } qos;
0188 
0189     u16 vport;
0190     bool                    enabled;
0191     enum mlx5_eswitch_vport_event enabled_events;
0192     int index;
0193     struct devlink_port *dl_port;
0194     struct dentry *dbgfs;
0195 };
0196 
0197 struct mlx5_esw_indir_table;
0198 
0199 struct mlx5_eswitch_fdb {
0200     union {
0201         struct legacy_fdb {
0202             struct mlx5_flow_table *fdb;
0203             struct mlx5_flow_group *addr_grp;
0204             struct mlx5_flow_group *allmulti_grp;
0205             struct mlx5_flow_group *promisc_grp;
0206             struct mlx5_flow_table *vepa_fdb;
0207             struct mlx5_flow_handle *vepa_uplink_rule;
0208             struct mlx5_flow_handle *vepa_star_rule;
0209         } legacy;
0210 
0211         struct offloads_fdb {
0212             struct mlx5_flow_namespace *ns;
0213             struct mlx5_flow_table *tc_miss_table;
0214             struct mlx5_flow_table *slow_fdb;
0215             struct mlx5_flow_group *send_to_vport_grp;
0216             struct mlx5_flow_group *send_to_vport_meta_grp;
0217             struct mlx5_flow_group *peer_miss_grp;
0218             struct mlx5_flow_handle **peer_miss_rules;
0219             struct mlx5_flow_group *miss_grp;
0220             struct mlx5_flow_handle **send_to_vport_meta_rules;
0221             struct mlx5_flow_handle *miss_rule_uni;
0222             struct mlx5_flow_handle *miss_rule_multi;
0223             int vlan_push_pop_refcount;
0224 
0225             struct mlx5_fs_chains *esw_chains_priv;
0226             struct {
0227                 DECLARE_HASHTABLE(table, 8);
0228                 /* Protects vports.table */
0229                 struct mutex lock;
0230             } vports;
0231 
0232             struct mlx5_esw_indir_table *indir;
0233 
0234         } offloads;
0235     };
0236     u32 flags;
0237 };
0238 
0239 struct mlx5_esw_offload {
0240     struct mlx5_flow_table *ft_offloads_restore;
0241     struct mlx5_flow_group *restore_group;
0242     struct mlx5_modify_hdr *restore_copy_hdr_id;
0243     struct mapping_ctx *reg_c0_obj_pool;
0244 
0245     struct mlx5_flow_table *ft_offloads;
0246     struct mlx5_flow_group *vport_rx_group;
0247     struct xarray vport_reps;
0248     struct list_head peer_flows;
0249     struct mutex peer_mutex;
0250     struct mutex encap_tbl_lock; /* protects encap_tbl */
0251     DECLARE_HASHTABLE(encap_tbl, 8);
0252     struct mutex decap_tbl_lock; /* protects decap_tbl */
0253     DECLARE_HASHTABLE(decap_tbl, 8);
0254     struct mod_hdr_tbl mod_hdr;
0255     DECLARE_HASHTABLE(termtbl_tbl, 8);
0256     struct mutex termtbl_mutex; /* protects termtbl hash */
0257     struct xarray vhca_map;
0258     const struct mlx5_eswitch_rep_ops *rep_ops[NUM_REP_TYPES];
0259     u8 inline_mode;
0260     atomic64_t num_flows;
0261     enum devlink_eswitch_encap_mode encap;
0262     struct ida vport_metadata_ida;
0263     unsigned int host_number; /* ECPF supports one external host */
0264 };
0265 
0266 /* E-Switch MC FDB table hash node */
0267 struct esw_mc_addr { /* SRIOV only */
0268     struct l2addr_node     node;
0269     struct mlx5_flow_handle *uplink_rule; /* Forward to uplink rule */
0270     u32                    refcnt;
0271 };
0272 
0273 struct mlx5_host_work {
0274     struct work_struct  work;
0275     struct mlx5_eswitch *esw;
0276 };
0277 
0278 struct mlx5_esw_functions {
0279     struct mlx5_nb      nb;
0280     u16         num_vfs;
0281 };
0282 
0283 enum {
0284     MLX5_ESWITCH_VPORT_MATCH_METADATA = BIT(0),
0285     MLX5_ESWITCH_REG_C1_LOOPBACK_ENABLED = BIT(1),
0286     MLX5_ESWITCH_VPORT_ACL_NS_CREATED = BIT(2),
0287 };
0288 
0289 struct mlx5_esw_bridge_offloads;
0290 
0291 enum {
0292     MLX5_ESW_FDB_CREATED = BIT(0),
0293 };
0294 
0295 struct mlx5_eswitch {
0296     struct mlx5_core_dev    *dev;
0297     struct mlx5_nb          nb;
0298     struct mlx5_eswitch_fdb fdb_table;
0299     /* legacy data structures */
0300     struct hlist_head       mc_table[MLX5_L2_ADDR_HASH_SIZE];
0301     struct esw_mc_addr mc_promisc;
0302     /* end of legacy */
0303     struct workqueue_struct *work_queue;
0304     struct xarray vports;
0305     u32 flags;
0306     int                     total_vports;
0307     int                     enabled_vports;
0308     /* Synchronize between vport change events
0309      * and async SRIOV admin state changes
0310      */
0311     struct mutex            state_lock;
0312 
0313     /* Protects eswitch mode change that occurs via one or more
0314      * user commands, i.e. sriov state change, devlink commands.
0315      */
0316     struct rw_semaphore mode_lock;
0317     atomic64_t user_count;
0318 
0319     struct {
0320         u32             root_tsar_ix;
0321         struct mlx5_esw_rate_group *group0;
0322         struct list_head groups; /* Protected by esw->state_lock */
0323 
0324         /* Protected by esw->state_lock.
0325          * Initially 0, meaning no QoS users and QoS is disabled.
0326          */
0327         refcount_t refcnt;
0328     } qos;
0329 
0330     struct mlx5_esw_bridge_offloads *br_offloads;
0331     struct mlx5_esw_offload offloads;
0332     int                     mode;
0333     u16                     manager_vport;
0334     u16                     first_host_vport;
0335     struct mlx5_esw_functions esw_funcs;
0336     struct {
0337         u32             large_group_num;
0338     }  params;
0339     struct blocking_notifier_head n_head;
0340     struct dentry *dbgfs;
0341 };
0342 
0343 void esw_offloads_disable(struct mlx5_eswitch *esw);
0344 int esw_offloads_enable(struct mlx5_eswitch *esw);
0345 void esw_offloads_cleanup_reps(struct mlx5_eswitch *esw);
0346 int esw_offloads_init_reps(struct mlx5_eswitch *esw);
0347 void esw_offloads_del_send_to_vport_meta_rules(struct mlx5_eswitch *esw);
0348 
0349 bool mlx5_esw_vport_match_metadata_supported(const struct mlx5_eswitch *esw);
0350 int mlx5_esw_offloads_vport_metadata_set(struct mlx5_eswitch *esw, bool enable);
0351 u32 mlx5_esw_match_metadata_alloc(struct mlx5_eswitch *esw);
0352 void mlx5_esw_match_metadata_free(struct mlx5_eswitch *esw, u32 metadata);
0353 
0354 int mlx5_esw_qos_modify_vport_rate(struct mlx5_eswitch *esw, u16 vport_num, u32 rate_mbps);
0355 
0356 /* E-Switch API */
0357 int mlx5_eswitch_init(struct mlx5_core_dev *dev);
0358 void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
0359 
0360 #define MLX5_ESWITCH_IGNORE_NUM_VFS (-1)
0361 int mlx5_eswitch_enable_locked(struct mlx5_eswitch *esw, int num_vfs);
0362 int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs);
0363 void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw, bool clear_vf);
0364 void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw);
0365 void mlx5_eswitch_disable(struct mlx5_eswitch *esw);
0366 int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
0367                    u16 vport, const u8 *mac);
0368 int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
0369                  u16 vport, int link_state);
0370 int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
0371                 u16 vport, u16 vlan, u8 qos);
0372 int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
0373                     u16 vport, bool spoofchk);
0374 int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
0375                  u16 vport_num, bool setting);
0376 int mlx5_eswitch_set_vport_rate(struct mlx5_eswitch *esw, u16 vport,
0377                 u32 max_rate, u32 min_rate);
0378 int mlx5_esw_qos_vport_update_group(struct mlx5_eswitch *esw,
0379                     struct mlx5_vport *vport,
0380                     struct mlx5_esw_rate_group *group,
0381                     struct netlink_ext_ack *extack);
0382 int mlx5_eswitch_set_vepa(struct mlx5_eswitch *esw, u8 setting);
0383 int mlx5_eswitch_get_vepa(struct mlx5_eswitch *esw, u8 *setting);
0384 int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
0385                   u16 vport, struct ifla_vf_info *ivi);
0386 int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
0387                  u16 vport,
0388                  struct ifla_vf_stats *vf_stats);
0389 void mlx5_eswitch_del_send_to_vport_rule(struct mlx5_flow_handle *rule);
0390 
0391 int mlx5_eswitch_modify_esw_vport_context(struct mlx5_core_dev *dev, u16 vport,
0392                       bool other_vport, void *in);
0393 
0394 struct mlx5_flow_spec;
0395 struct mlx5_esw_flow_attr;
0396 struct mlx5_termtbl_handle;
0397 
0398 bool
0399 mlx5_eswitch_termtbl_required(struct mlx5_eswitch *esw,
0400                   struct mlx5_flow_attr *attr,
0401                   struct mlx5_flow_act *flow_act,
0402                   struct mlx5_flow_spec *spec);
0403 
0404 struct mlx5_flow_handle *
0405 mlx5_eswitch_add_termtbl_rule(struct mlx5_eswitch *esw,
0406                   struct mlx5_flow_table *ft,
0407                   struct mlx5_flow_spec *spec,
0408                   struct mlx5_esw_flow_attr *attr,
0409                   struct mlx5_flow_act *flow_act,
0410                   struct mlx5_flow_destination *dest,
0411                   int num_dest);
0412 
0413 void
0414 mlx5_eswitch_termtbl_put(struct mlx5_eswitch *esw,
0415              struct mlx5_termtbl_handle *tt);
0416 
0417 void
0418 mlx5_eswitch_clear_rule_source_port(struct mlx5_eswitch *esw, struct mlx5_flow_spec *spec);
0419 
0420 struct mlx5_flow_handle *
0421 mlx5_eswitch_add_offloaded_rule(struct mlx5_eswitch *esw,
0422                 struct mlx5_flow_spec *spec,
0423                 struct mlx5_flow_attr *attr);
0424 struct mlx5_flow_handle *
0425 mlx5_eswitch_add_fwd_rule(struct mlx5_eswitch *esw,
0426               struct mlx5_flow_spec *spec,
0427               struct mlx5_flow_attr *attr);
0428 void
0429 mlx5_eswitch_del_offloaded_rule(struct mlx5_eswitch *esw,
0430                 struct mlx5_flow_handle *rule,
0431                 struct mlx5_flow_attr *attr);
0432 void
0433 mlx5_eswitch_del_fwd_rule(struct mlx5_eswitch *esw,
0434               struct mlx5_flow_handle *rule,
0435               struct mlx5_flow_attr *attr);
0436 
0437 struct mlx5_flow_handle *
0438 mlx5_eswitch_create_vport_rx_rule(struct mlx5_eswitch *esw, u16 vport,
0439                   struct mlx5_flow_destination *dest);
0440 
0441 enum {
0442     SET_VLAN_STRIP  = BIT(0),
0443     SET_VLAN_INSERT = BIT(1)
0444 };
0445 
0446 enum mlx5_flow_match_level {
0447     MLX5_MATCH_NONE = MLX5_INLINE_MODE_NONE,
0448     MLX5_MATCH_L2   = MLX5_INLINE_MODE_L2,
0449     MLX5_MATCH_L3   = MLX5_INLINE_MODE_IP,
0450     MLX5_MATCH_L4   = MLX5_INLINE_MODE_TCP_UDP,
0451 };
0452 
0453 /* current maximum for flow based vport multicasting */
0454 #define MLX5_MAX_FLOW_FWD_VPORTS 32
0455 
0456 enum {
0457     MLX5_ESW_DEST_ENCAP         = BIT(0),
0458     MLX5_ESW_DEST_ENCAP_VALID   = BIT(1),
0459     MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE  = BIT(2),
0460 };
0461 
0462 struct mlx5_esw_flow_attr {
0463     struct mlx5_eswitch_rep *in_rep;
0464     struct mlx5_core_dev    *in_mdev;
0465     struct mlx5_core_dev    *counter_dev;
0466     struct mlx5e_tc_int_port *dest_int_port;
0467     struct mlx5e_tc_int_port *int_port;
0468 
0469     int split_count;
0470     int out_count;
0471 
0472     __be16  vlan_proto[MLX5_FS_VLAN_DEPTH];
0473     u16 vlan_vid[MLX5_FS_VLAN_DEPTH];
0474     u8  vlan_prio[MLX5_FS_VLAN_DEPTH];
0475     u8  total_vlan;
0476     struct {
0477         u32 flags;
0478         struct mlx5_eswitch_rep *rep;
0479         struct mlx5_pkt_reformat *pkt_reformat;
0480         struct mlx5_core_dev *mdev;
0481         struct mlx5_termtbl_handle *termtbl;
0482         int src_port_rewrite_act_id;
0483     } dests[MLX5_MAX_FLOW_FWD_VPORTS];
0484     struct mlx5_rx_tun_attr *rx_tun_attr;
0485     struct ethhdr eth;
0486     struct mlx5_pkt_reformat *decap_pkt_reformat;
0487 };
0488 
0489 int mlx5_devlink_eswitch_mode_set(struct devlink *devlink, u16 mode,
0490                   struct netlink_ext_ack *extack);
0491 int mlx5_devlink_eswitch_mode_get(struct devlink *devlink, u16 *mode);
0492 int mlx5_devlink_eswitch_inline_mode_set(struct devlink *devlink, u8 mode,
0493                      struct netlink_ext_ack *extack);
0494 int mlx5_devlink_eswitch_inline_mode_get(struct devlink *devlink, u8 *mode);
0495 int mlx5_devlink_eswitch_encap_mode_set(struct devlink *devlink,
0496                     enum devlink_eswitch_encap_mode encap,
0497                     struct netlink_ext_ack *extack);
0498 int mlx5_devlink_eswitch_encap_mode_get(struct devlink *devlink,
0499                     enum devlink_eswitch_encap_mode *encap);
0500 int mlx5_devlink_port_function_hw_addr_get(struct devlink_port *port,
0501                        u8 *hw_addr, int *hw_addr_len,
0502                        struct netlink_ext_ack *extack);
0503 int mlx5_devlink_port_function_hw_addr_set(struct devlink_port *port,
0504                        const u8 *hw_addr, int hw_addr_len,
0505                        struct netlink_ext_ack *extack);
0506 
0507 void *mlx5_eswitch_get_uplink_priv(struct mlx5_eswitch *esw, u8 rep_type);
0508 
0509 int mlx5_eswitch_add_vlan_action(struct mlx5_eswitch *esw,
0510                  struct mlx5_flow_attr *attr);
0511 int mlx5_eswitch_del_vlan_action(struct mlx5_eswitch *esw,
0512                  struct mlx5_flow_attr *attr);
0513 int __mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
0514                   u16 vport, u16 vlan, u8 qos, u8 set_flags);
0515 
0516 static inline bool mlx5_eswitch_vlan_actions_supported(struct mlx5_core_dev *dev,
0517                                u8 vlan_depth)
0518 {
0519     bool ret = MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan) &&
0520            MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan);
0521 
0522     if (vlan_depth == 1)
0523         return ret;
0524 
0525     return  ret && MLX5_CAP_ESW_FLOWTABLE_FDB(dev, pop_vlan_2) &&
0526         MLX5_CAP_ESW_FLOWTABLE_FDB(dev, push_vlan_2);
0527 }
0528 
0529 bool mlx5_esw_multipath_prereq(struct mlx5_core_dev *dev0,
0530                    struct mlx5_core_dev *dev1);
0531 
0532 const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev);
0533 
0534 #define MLX5_DEBUG_ESWITCH_MASK BIT(3)
0535 
0536 #define esw_info(__dev, format, ...)            \
0537     dev_info((__dev)->device, "E-Switch: " format, ##__VA_ARGS__)
0538 
0539 #define esw_warn(__dev, format, ...)            \
0540     dev_warn((__dev)->device, "E-Switch: " format, ##__VA_ARGS__)
0541 
0542 #define esw_debug(dev, format, ...)             \
0543     mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)
0544 
0545 static inline bool mlx5_esw_allowed(const struct mlx5_eswitch *esw)
0546 {
0547     return esw && MLX5_ESWITCH_MANAGER(esw->dev);
0548 }
0549 
0550 /* The returned number is valid only when the dev is eswitch manager. */
0551 static inline u16 mlx5_eswitch_manager_vport(struct mlx5_core_dev *dev)
0552 {
0553     return mlx5_core_is_ecpf_esw_manager(dev) ?
0554         MLX5_VPORT_ECPF : MLX5_VPORT_PF;
0555 }
0556 
0557 static inline bool
0558 mlx5_esw_is_manager_vport(const struct mlx5_eswitch *esw, u16 vport_num)
0559 {
0560     return esw->manager_vport == vport_num;
0561 }
0562 
0563 static inline u16 mlx5_eswitch_first_host_vport_num(struct mlx5_core_dev *dev)
0564 {
0565     return mlx5_core_is_ecpf_esw_manager(dev) ?
0566         MLX5_VPORT_PF : MLX5_VPORT_FIRST_VF;
0567 }
0568 
0569 static inline bool mlx5_eswitch_is_funcs_handler(const struct mlx5_core_dev *dev)
0570 {
0571     return mlx5_core_is_ecpf_esw_manager(dev);
0572 }
0573 
0574 static inline unsigned int
0575 mlx5_esw_vport_to_devlink_port_index(const struct mlx5_core_dev *dev,
0576                      u16 vport_num)
0577 {
0578     return (MLX5_CAP_GEN(dev, vhca_id) << 16) | vport_num;
0579 }
0580 
0581 static inline u16
0582 mlx5_esw_devlink_port_index_to_vport_num(unsigned int dl_port_index)
0583 {
0584     return dl_port_index & 0xffff;
0585 }
0586 
0587 static inline bool mlx5_esw_is_fdb_created(struct mlx5_eswitch *esw)
0588 {
0589     return esw->fdb_table.flags & MLX5_ESW_FDB_CREATED;
0590 }
0591 
0592 /* TODO: This mlx5e_tc function shouldn't be called by eswitch */
0593 void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
0594 
0595 /* Each mark identifies eswitch vport type.
0596  * MLX5_ESW_VPT_HOST_FN is used to identify both PF and VF ports using
0597  * a single mark.
0598  * MLX5_ESW_VPT_VF identifies a SRIOV VF vport.
0599  * MLX5_ESW_VPT_SF identifies SF vport.
0600  */
0601 #define MLX5_ESW_VPT_HOST_FN XA_MARK_0
0602 #define MLX5_ESW_VPT_VF XA_MARK_1
0603 #define MLX5_ESW_VPT_SF XA_MARK_2
0604 
0605 /* The vport iterator is valid only after vport are initialized in mlx5_eswitch_init.
0606  * Borrowed the idea from xa_for_each_marked() but with support for desired last element.
0607  */
0608 
0609 #define mlx5_esw_for_each_vport(esw, index, vport) \
0610     xa_for_each(&((esw)->vports), index, vport)
0611 
0612 #define mlx5_esw_for_each_entry_marked(xa, index, entry, last, filter)  \
0613     for (index = 0, entry = xa_find(xa, &index, last, filter); \
0614          entry; entry = xa_find_after(xa, &index, last, filter))
0615 
0616 #define mlx5_esw_for_each_vport_marked(esw, index, vport, last, filter) \
0617     mlx5_esw_for_each_entry_marked(&((esw)->vports), index, vport, last, filter)
0618 
0619 #define mlx5_esw_for_each_vf_vport(esw, index, vport, last) \
0620     mlx5_esw_for_each_vport_marked(esw, index, vport, last, MLX5_ESW_VPT_VF)
0621 
0622 #define mlx5_esw_for_each_host_func_vport(esw, index, vport, last)  \
0623     mlx5_esw_for_each_vport_marked(esw, index, vport, last, MLX5_ESW_VPT_HOST_FN)
0624 
0625 struct mlx5_eswitch *mlx5_devlink_eswitch_get(struct devlink *devlink);
0626 struct mlx5_vport *__must_check
0627 mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num);
0628 
0629 bool mlx5_eswitch_is_vf_vport(struct mlx5_eswitch *esw, u16 vport_num);
0630 bool mlx5_esw_is_sf_vport(struct mlx5_eswitch *esw, u16 vport_num);
0631 
0632 int mlx5_esw_funcs_changed_handler(struct notifier_block *nb, unsigned long type, void *data);
0633 
0634 int
0635 mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
0636                  enum mlx5_eswitch_vport_event enabled_events);
0637 void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw);
0638 
0639 int mlx5_esw_vport_enable(struct mlx5_eswitch *esw, u16 vport_num,
0640               enum mlx5_eswitch_vport_event enabled_events);
0641 void mlx5_esw_vport_disable(struct mlx5_eswitch *esw, u16 vport_num);
0642 
0643 int
0644 esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
0645                      struct mlx5_vport *vport);
0646 void
0647 esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
0648                       struct mlx5_vport *vport);
0649 
0650 struct esw_vport_tbl_namespace {
0651     int max_fte;
0652     int max_num_groups;
0653     u32 flags;
0654 };
0655 
0656 struct mlx5_vport_tbl_attr {
0657     u32 chain;
0658     u16 prio;
0659     u16 vport;
0660     const struct esw_vport_tbl_namespace *vport_ns;
0661 };
0662 
0663 struct mlx5_flow_table *
0664 mlx5_esw_vporttbl_get(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr);
0665 void
0666 mlx5_esw_vporttbl_put(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr);
0667 
0668 struct mlx5_flow_handle *
0669 esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag);
0670 
0671 int esw_offloads_load_rep(struct mlx5_eswitch *esw, u16 vport_num);
0672 void esw_offloads_unload_rep(struct mlx5_eswitch *esw, u16 vport_num);
0673 
0674 int mlx5_esw_offloads_rep_load(struct mlx5_eswitch *esw, u16 vport_num);
0675 void mlx5_esw_offloads_rep_unload(struct mlx5_eswitch *esw, u16 vport_num);
0676 
0677 int mlx5_eswitch_load_vport(struct mlx5_eswitch *esw, u16 vport_num,
0678                 enum mlx5_eswitch_vport_event enabled_events);
0679 void mlx5_eswitch_unload_vport(struct mlx5_eswitch *esw, u16 vport_num);
0680 
0681 int mlx5_eswitch_load_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs,
0682                 enum mlx5_eswitch_vport_event enabled_events);
0683 void mlx5_eswitch_unload_vf_vports(struct mlx5_eswitch *esw, u16 num_vfs);
0684 
0685 int mlx5_esw_offloads_devlink_port_register(struct mlx5_eswitch *esw, u16 vport_num);
0686 void mlx5_esw_offloads_devlink_port_unregister(struct mlx5_eswitch *esw, u16 vport_num);
0687 struct devlink_port *mlx5_esw_offloads_devlink_port(struct mlx5_eswitch *esw, u16 vport_num);
0688 
0689 void mlx5_esw_vport_debugfs_create(struct mlx5_eswitch *esw, u16 vport_num, bool is_sf, u16 sf_num);
0690 void mlx5_esw_vport_debugfs_destroy(struct mlx5_eswitch *esw, u16 vport_num);
0691 
0692 int mlx5_esw_devlink_sf_port_register(struct mlx5_eswitch *esw, struct devlink_port *dl_port,
0693                       u16 vport_num, u32 controller, u32 sfnum);
0694 void mlx5_esw_devlink_sf_port_unregister(struct mlx5_eswitch *esw, u16 vport_num);
0695 
0696 int mlx5_esw_offloads_sf_vport_enable(struct mlx5_eswitch *esw, struct devlink_port *dl_port,
0697                       u16 vport_num, u32 controller, u32 sfnum);
0698 void mlx5_esw_offloads_sf_vport_disable(struct mlx5_eswitch *esw, u16 vport_num);
0699 int mlx5_esw_sf_max_hpf_functions(struct mlx5_core_dev *dev, u16 *max_sfs, u16 *sf_base_id);
0700 
0701 int mlx5_esw_vport_vhca_id_set(struct mlx5_eswitch *esw, u16 vport_num);
0702 void mlx5_esw_vport_vhca_id_clear(struct mlx5_eswitch *esw, u16 vport_num);
0703 int mlx5_eswitch_vhca_id_to_vport(struct mlx5_eswitch *esw, u16 vhca_id, u16 *vport_num);
0704 
0705 /**
0706  * mlx5_esw_event_info - Indicates eswitch mode changed/changing.
0707  *
0708  * @new_mode: New mode of eswitch.
0709  */
0710 struct mlx5_esw_event_info {
0711     u16 new_mode;
0712 };
0713 
0714 int mlx5_esw_event_notifier_register(struct mlx5_eswitch *esw, struct notifier_block *n);
0715 void mlx5_esw_event_notifier_unregister(struct mlx5_eswitch *esw, struct notifier_block *n);
0716 
0717 bool mlx5_esw_hold(struct mlx5_core_dev *dev);
0718 void mlx5_esw_release(struct mlx5_core_dev *dev);
0719 void mlx5_esw_get(struct mlx5_core_dev *dev);
0720 void mlx5_esw_put(struct mlx5_core_dev *dev);
0721 int mlx5_esw_try_lock(struct mlx5_eswitch *esw);
0722 void mlx5_esw_unlock(struct mlx5_eswitch *esw);
0723 
0724 void esw_vport_change_handle_locked(struct mlx5_vport *vport);
0725 
0726 bool mlx5_esw_offloads_controller_valid(const struct mlx5_eswitch *esw, u32 controller);
0727 
0728 int mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw,
0729                         struct mlx5_eswitch *slave_esw);
0730 void mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw,
0731                           struct mlx5_eswitch *slave_esw);
0732 int mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw);
0733 
0734 #else  /* CONFIG_MLX5_ESWITCH */
0735 /* eswitch API stubs */
0736 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
0737 static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {}
0738 static inline int mlx5_eswitch_enable(struct mlx5_eswitch *esw, int num_vfs) { return 0; }
0739 static inline void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw, bool clear_vf) {}
0740 static inline void mlx5_eswitch_disable(struct mlx5_eswitch *esw) {}
0741 static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev) { return false; }
0742 static inline
0743 int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw, u16 vport, int link_state) { return 0; }
0744 static inline const u32 *mlx5_esw_query_functions(struct mlx5_core_dev *dev)
0745 {
0746     return ERR_PTR(-EOPNOTSUPP);
0747 }
0748 
0749 static inline struct mlx5_flow_handle *
0750 esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag)
0751 {
0752     return ERR_PTR(-EOPNOTSUPP);
0753 }
0754 
0755 static inline unsigned int
0756 mlx5_esw_vport_to_devlink_port_index(const struct mlx5_core_dev *dev,
0757                      u16 vport_num)
0758 {
0759     return vport_num;
0760 }
0761 
0762 static inline int
0763 mlx5_eswitch_offloads_config_single_fdb(struct mlx5_eswitch *master_esw,
0764                     struct mlx5_eswitch *slave_esw)
0765 {
0766     return 0;
0767 }
0768 
0769 static inline void
0770 mlx5_eswitch_offloads_destroy_single_fdb(struct mlx5_eswitch *master_esw,
0771                      struct mlx5_eswitch *slave_esw) {}
0772 
0773 static inline int
0774 mlx5_eswitch_reload_reps(struct mlx5_eswitch *esw)
0775 {
0776     return 0;
0777 }
0778 #endif /* CONFIG_MLX5_ESWITCH */
0779 
0780 #endif /* __MLX5_ESWITCH_H__ */
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