drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

   1 /*
   2  * drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
   3  * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
   5  * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
   6  * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the names of the copyright holders nor the names of its
  17  *    contributors may be used to endorse or promote products derived from
  18  *    this software without specific prior written permission.
  19  *
  20  * Alternatively, this software may be distributed under the terms of the
  21  * GNU General Public License ("GPL") version 2 as published by the Free
  22  * Software Foundation.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34  * POSSIBILITY OF SUCH DAMAGE.
  35  */
  36
  37 #include <linux/kernel.h>
  38 #include <linux/types.h>
  39 #include <linux/netdevice.h>
  40 #include <linux/etherdevice.h>
  41 #include <linux/slab.h>
  42 #include <linux/device.h>
  43 #include <linux/skbuff.h>
  44 #include <linux/if_vlan.h>
  45 #include <linux/if_bridge.h>
  46 #include <linux/workqueue.h>
  47 #include <linux/jiffies.h>
  48 #include <linux/rtnetlink.h>
  49 #include <linux/netlink.h>
  50 #include <net/switchdev.h>
  51
  52 #include "spectrum_span.h"
  53 #include "spectrum_router.h"
  54 #include "spectrum_switchdev.h"
  55 #include "spectrum.h"
  56 #include "core.h"
  57 #include "reg.h"
  58
  59 struct mlxsw_sp_bridge_ops;
  60
  61 struct mlxsw_sp_bridge {
  62         struct mlxsw_sp *mlxsw_sp;
  63         struct {
  64                 struct delayed_work dw;
  65 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100
  66                 unsigned int interval; /* ms */
  67         } fdb_notify;
  68 #define MLXSW_SP_MIN_AGEING_TIME 10
  69 #define MLXSW_SP_MAX_AGEING_TIME 1000000
  70 #define MLXSW_SP_DEFAULT_AGEING_TIME 300
  71         u32 ageing_time;
  72         bool vlan_enabled_exists;
  73         struct list_head bridges_list;
  74         DECLARE_BITMAP(mids_bitmap, MLXSW_SP_MID_MAX);
  75         const struct mlxsw_sp_bridge_ops *bridge_8021q_ops;
  76         const struct mlxsw_sp_bridge_ops *bridge_8021d_ops;
  77 };
  78
  79 struct mlxsw_sp_bridge_device {
  80         struct net_device *dev;
  81         struct list_head list;
  82         struct list_head ports_list;
  83         struct list_head mids_list;
  84         u8 vlan_enabled:1,
  85            multicast_enabled:1,
  86            mrouter:1;
  87         const struct mlxsw_sp_bridge_ops *ops;
  88 };
  89
  90 struct mlxsw_sp_bridge_port {
  91         struct net_device *dev;
  92         struct mlxsw_sp_bridge_device *bridge_device;
  93         struct list_head list;
  94         struct list_head vlans_list;
  95         unsigned int ref_count;
  96         u8 stp_state;
  97         unsigned long flags;
  98         bool mrouter;
  99         bool lagged;
 100         union {
 101                 u16 lag_id;
 102                 u16 system_port;
 103         };
 104 };
 105
 106 struct mlxsw_sp_bridge_vlan {
 107         struct list_head list;
 108         struct list_head port_vlan_list;
 109         u16 vid;
 110 };
 111
 112 struct mlxsw_sp_bridge_ops {
 113         int (*port_join)(struct mlxsw_sp_bridge_device *bridge_device,
 114                          struct mlxsw_sp_bridge_port *bridge_port,
 115                          struct mlxsw_sp_port *mlxsw_sp_port,
 116                          struct netlink_ext_ack *extack);
 117         void (*port_leave)(struct mlxsw_sp_bridge_device *bridge_device,
 118                            struct mlxsw_sp_bridge_port *bridge_port,
 119                            struct mlxsw_sp_port *mlxsw_sp_port);
 120         struct mlxsw_sp_fid *
 121                 (*fid_get)(struct mlxsw_sp_bridge_device *bridge_device,
 122                            u16 vid);
 123 };
 124
 125 static int
 126 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
 127                                struct mlxsw_sp_bridge_port *bridge_port,
 128                                u16 fid_index);
 129
 130 static void
 131 mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port,
 132                                struct mlxsw_sp_bridge_port *bridge_port);
 133
 134 static void
 135 mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
 136                                    struct mlxsw_sp_bridge_device
 137                                    *bridge_device);
 138
 139 static void
 140 mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port,
 141                                  struct mlxsw_sp_bridge_port *bridge_port,
 142                                  bool add);
 143
 144 static struct mlxsw_sp_bridge_device *
 145 mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge,
 146                             const struct net_device *br_dev)
 147 {
 148         struct mlxsw_sp_bridge_device *bridge_device;
 149
 150         list_for_each_entry(bridge_device, &bridge->bridges_list, list)
 151                 if (bridge_device->dev == br_dev)
 152                         return bridge_device;
 153
 154         return NULL;
 155 }
 156
 157 bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp,
 158                                          const struct net_device *br_dev)
 159 {
 160         return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
 161 }
 162
 163 static struct mlxsw_sp_bridge_device *
 164 mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge,
 165                               struct net_device *br_dev)
 166 {
 167         struct device *dev = bridge->mlxsw_sp->bus_info->dev;
 168         struct mlxsw_sp_bridge_device *bridge_device;
 169         bool vlan_enabled = br_vlan_enabled(br_dev);
 170
 171         if (vlan_enabled && bridge->vlan_enabled_exists) {
 172                 dev_err(dev, "Only one VLAN-aware bridge is supported\n");
 173                 return ERR_PTR(-EINVAL);
 174         }
 175
 176         bridge_device = kzalloc(sizeof(*bridge_device), GFP_KERNEL);
 177         if (!bridge_device)
 178                 return ERR_PTR(-ENOMEM);
 179
 180         bridge_device->dev = br_dev;
 181         bridge_device->vlan_enabled = vlan_enabled;
 182         bridge_device->multicast_enabled = br_multicast_enabled(br_dev);
 183         bridge_device->mrouter = br_multicast_router(br_dev);
 184         INIT_LIST_HEAD(&bridge_device->ports_list);
 185         if (vlan_enabled) {
 186                 bridge->vlan_enabled_exists = true;
 187                 bridge_device->ops = bridge->bridge_8021q_ops;
 188         } else {
 189                 bridge_device->ops = bridge->bridge_8021d_ops;
 190         }
 191         INIT_LIST_HEAD(&bridge_device->mids_list);
 192         list_add(&bridge_device->list, &bridge->bridges_list);
 193
 194         return bridge_device;
 195 }
 196
 197 static void
 198 mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge,
 199                                struct mlxsw_sp_bridge_device *bridge_device)
 200 {
 201         list_del(&bridge_device->list);
 202         if (bridge_device->vlan_enabled)
 203                 bridge->vlan_enabled_exists = false;
 204         WARN_ON(!list_empty(&bridge_device->ports_list));
 205         WARN_ON(!list_empty(&bridge_device->mids_list));
 206         kfree(bridge_device);
 207 }
 208
 209 static struct mlxsw_sp_bridge_device *
 210 mlxsw_sp_bridge_device_get(struct mlxsw_sp_bridge *bridge,
 211                            struct net_device *br_dev)
 212 {
 213         struct mlxsw_sp_bridge_device *bridge_device;
 214
 215         bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev);
 216         if (bridge_device)
 217                 return bridge_device;
 218
 219         return mlxsw_sp_bridge_device_create(bridge, br_dev);
 220 }
 221
 222 static void
 223 mlxsw_sp_bridge_device_put(struct mlxsw_sp_bridge *bridge,
 224                            struct mlxsw_sp_bridge_device *bridge_device)
 225 {
 226         if (list_empty(&bridge_device->ports_list))
 227                 mlxsw_sp_bridge_device_destroy(bridge, bridge_device);
 228 }
 229
 230 static struct mlxsw_sp_bridge_port *
 231 __mlxsw_sp_bridge_port_find(const struct mlxsw_sp_bridge_device *bridge_device,
 232                             const struct net_device *brport_dev)
 233 {
 234         struct mlxsw_sp_bridge_port *bridge_port;
 235
 236         list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
 237                 if (bridge_port->dev == brport_dev)
 238                         return bridge_port;
 239         }
 240
 241         return NULL;
 242 }
 243
 244 struct mlxsw_sp_bridge_port *
 245 mlxsw_sp_bridge_port_find(struct mlxsw_sp_bridge *bridge,
 246                           struct net_device *brport_dev)
 247 {
 248         struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev);
 249         struct mlxsw_sp_bridge_device *bridge_device;
 250
 251         if (!br_dev)
 252                 return NULL;
 253
 254         bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev);
 255         if (!bridge_device)
 256                 return NULL;
 257
 258         return __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
 259 }
 260
 261 static struct mlxsw_sp_bridge_port *
 262 mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device,
 263                             struct net_device *brport_dev)
 264 {
 265         struct mlxsw_sp_bridge_port *bridge_port;
 266         struct mlxsw_sp_port *mlxsw_sp_port;
 267
 268         bridge_port = kzalloc(sizeof(*bridge_port), GFP_KERNEL);
 269         if (!bridge_port)
 270                 return NULL;
 271
 272         mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(brport_dev);
 273         bridge_port->lagged = mlxsw_sp_port->lagged;
 274         if (bridge_port->lagged)
 275                 bridge_port->lag_id = mlxsw_sp_port->lag_id;
 276         else
 277                 bridge_port->system_port = mlxsw_sp_port->local_port;
 278         bridge_port->dev = brport_dev;
 279         bridge_port->bridge_device = bridge_device;
 280         bridge_port->stp_state = BR_STATE_DISABLED;
 281         bridge_port->flags = BR_LEARNING | BR_FLOOD | BR_LEARNING_SYNC |
 282                              BR_MCAST_FLOOD;
 283         INIT_LIST_HEAD(&bridge_port->vlans_list);
 284         list_add(&bridge_port->list, &bridge_device->ports_list);
 285         bridge_port->ref_count = 1;
 286
 287         return bridge_port;
 288 }
 289
 290 static void
 291 mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port)
 292 {
 293         list_del(&bridge_port->list);
 294         WARN_ON(!list_empty(&bridge_port->vlans_list));
 295         kfree(bridge_port);
 296 }
 297
 298 static bool
 299 mlxsw_sp_bridge_port_should_destroy(const struct mlxsw_sp_bridge_port *
 300                                     bridge_port)
 301 {
 302         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_port->dev);
 303
 304         /* In case ports were pulled from out of a bridged LAG, then
 305          * it's possible the reference count isn't zero, yet the bridge
 306          * port should be destroyed, as it's no longer an upper of ours.
 307          */
 308         if (!mlxsw_sp && list_empty(&bridge_port->vlans_list))
 309                 return true;
 310         else if (bridge_port->ref_count == 0)
 311                 return true;
 312         else
 313                 return false;
 314 }
 315
 316 static struct mlxsw_sp_bridge_port *
 317 mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge,
 318                          struct net_device *brport_dev)
 319 {
 320         struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev);
 321         struct mlxsw_sp_bridge_device *bridge_device;
 322         struct mlxsw_sp_bridge_port *bridge_port;
 323         int err;
 324
 325         bridge_port = mlxsw_sp_bridge_port_find(bridge, brport_dev);
 326         if (bridge_port) {
 327                 bridge_port->ref_count++;
 328                 return bridge_port;
 329         }
 330
 331         bridge_device = mlxsw_sp_bridge_device_get(bridge, br_dev);
 332         if (IS_ERR(bridge_device))
 333                 return ERR_CAST(bridge_device);
 334
 335         bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev);
 336         if (!bridge_port) {
 337                 err = -ENOMEM;
 338                 goto err_bridge_port_create;
 339         }
 340
 341         return bridge_port;
 342
 343 err_bridge_port_create:
 344         mlxsw_sp_bridge_device_put(bridge, bridge_device);
 345         return ERR_PTR(err);
 346 }
 347
 348 static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge,
 349                                      struct mlxsw_sp_bridge_port *bridge_port)
 350 {
 351         struct mlxsw_sp_bridge_device *bridge_device;
 352
 353         bridge_port->ref_count--;
 354         if (!mlxsw_sp_bridge_port_should_destroy(bridge_port))
 355                 return;
 356         bridge_device = bridge_port->bridge_device;
 357         mlxsw_sp_bridge_port_destroy(bridge_port);
 358         mlxsw_sp_bridge_device_put(bridge, bridge_device);
 359 }
 360
 361 static struct mlxsw_sp_port_vlan *
 362 mlxsw_sp_port_vlan_find_by_bridge(struct mlxsw_sp_port *mlxsw_sp_port,
 363                                   const struct mlxsw_sp_bridge_device *
 364                                   bridge_device,
 365                                   u16 vid)
 366 {
 367         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 368
 369         list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
 370                             list) {
 371                 if (!mlxsw_sp_port_vlan->bridge_port)
 372                         continue;
 373                 if (mlxsw_sp_port_vlan->bridge_port->bridge_device !=
 374                     bridge_device)
 375                         continue;
 376                 if (bridge_device->vlan_enabled &&
 377                     mlxsw_sp_port_vlan->vid != vid)
 378                         continue;
 379                 return mlxsw_sp_port_vlan;
 380         }
 381
 382         return NULL;
 383 }
 384
 385 static struct mlxsw_sp_port_vlan*
 386 mlxsw_sp_port_vlan_find_by_fid(struct mlxsw_sp_port *mlxsw_sp_port,
 387                                u16 fid_index)
 388 {
 389         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 390
 391         list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
 392                             list) {
 393                 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
 394
 395                 if (fid && mlxsw_sp_fid_index(fid) == fid_index)
 396                         return mlxsw_sp_port_vlan;
 397         }
 398
 399         return NULL;
 400 }
 401
 402 static struct mlxsw_sp_bridge_vlan *
 403 mlxsw_sp_bridge_vlan_find(const struct mlxsw_sp_bridge_port *bridge_port,
 404                           u16 vid)
 405 {
 406         struct mlxsw_sp_bridge_vlan *bridge_vlan;
 407
 408         list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
 409                 if (bridge_vlan->vid == vid)
 410                         return bridge_vlan;
 411         }
 412
 413         return NULL;
 414 }
 415
 416 static struct mlxsw_sp_bridge_vlan *
 417 mlxsw_sp_bridge_vlan_create(struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
 418 {
 419         struct mlxsw_sp_bridge_vlan *bridge_vlan;
 420
 421         bridge_vlan = kzalloc(sizeof(*bridge_vlan), GFP_KERNEL);
 422         if (!bridge_vlan)
 423                 return NULL;
 424
 425         INIT_LIST_HEAD(&bridge_vlan->port_vlan_list);
 426         bridge_vlan->vid = vid;
 427         list_add(&bridge_vlan->list, &bridge_port->vlans_list);
 428
 429         return bridge_vlan;
 430 }
 431
 432 static void
 433 mlxsw_sp_bridge_vlan_destroy(struct mlxsw_sp_bridge_vlan *bridge_vlan)
 434 {
 435         list_del(&bridge_vlan->list);
 436         WARN_ON(!list_empty(&bridge_vlan->port_vlan_list));
 437         kfree(bridge_vlan);
 438 }
 439
 440 static struct mlxsw_sp_bridge_vlan *
 441 mlxsw_sp_bridge_vlan_get(struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
 442 {
 443         struct mlxsw_sp_bridge_vlan *bridge_vlan;
 444
 445         bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
 446         if (bridge_vlan)
 447                 return bridge_vlan;
 448
 449         return mlxsw_sp_bridge_vlan_create(bridge_port, vid);
 450 }
 451
 452 static void mlxsw_sp_bridge_vlan_put(struct mlxsw_sp_bridge_vlan *bridge_vlan)
 453 {
 454         if (list_empty(&bridge_vlan->port_vlan_list))
 455                 mlxsw_sp_bridge_vlan_destroy(bridge_vlan);
 456 }
 457
 458 static void mlxsw_sp_port_bridge_flags_get(struct mlxsw_sp_bridge *bridge,
 459                                            struct net_device *dev,
 460                                            unsigned long *brport_flags)
 461 {
 462         struct mlxsw_sp_bridge_port *bridge_port;
 463
 464         bridge_port = mlxsw_sp_bridge_port_find(bridge, dev);
 465         if (WARN_ON(!bridge_port))
 466                 return;
 467
 468         memcpy(brport_flags, &bridge_port->flags, sizeof(*brport_flags));
 469 }
 470
 471 static int mlxsw_sp_port_attr_get(struct net_device *dev,
 472                                   struct switchdev_attr *attr)
 473 {
 474         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 475         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 476
 477         switch (attr->id) {
 478         case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
 479                 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
 480                 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
 481                        attr->u.ppid.id_len);
 482                 break;
 483         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
 484                 mlxsw_sp_port_bridge_flags_get(mlxsw_sp->bridge, attr->orig_dev,
 485                                                &attr->u.brport_flags);
 486                 break;
 487         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
 488                 attr->u.brport_flags_support = BR_LEARNING | BR_FLOOD |
 489                                                BR_MCAST_FLOOD;
 490                 break;
 491         default:
 492                 return -EOPNOTSUPP;
 493         }
 494
 495         return 0;
 496 }
 497
 498 static int
 499 mlxsw_sp_port_bridge_vlan_stp_set(struct mlxsw_sp_port *mlxsw_sp_port,
 500                                   struct mlxsw_sp_bridge_vlan *bridge_vlan,
 501                                   u8 state)
 502 {
 503         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 504
 505         list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
 506                             bridge_vlan_node) {
 507                 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
 508                         continue;
 509                 return mlxsw_sp_port_vid_stp_set(mlxsw_sp_port,
 510                                                  bridge_vlan->vid, state);
 511         }
 512
 513         return 0;
 514 }
 515
 516 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
 517                                             struct switchdev_trans *trans,
 518                                             struct net_device *orig_dev,
 519                                             u8 state)
 520 {
 521         struct mlxsw_sp_bridge_port *bridge_port;
 522         struct mlxsw_sp_bridge_vlan *bridge_vlan;
 523         int err;
 524
 525         if (switchdev_trans_ph_prepare(trans))
 526                 return 0;
 527
 528         /* It's possible we failed to enslave the port, yet this
 529          * operation is executed due to it being deferred.
 530          */
 531         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
 532                                                 orig_dev);
 533         if (!bridge_port)
 534                 return 0;
 535
 536         list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
 537                 err = mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port,
 538                                                         bridge_vlan, state);
 539                 if (err)
 540                         goto err_port_bridge_vlan_stp_set;
 541         }
 542
 543         bridge_port->stp_state = state;
 544
 545         return 0;
 546
 547 err_port_bridge_vlan_stp_set:
 548         list_for_each_entry_continue_reverse(bridge_vlan,
 549                                              &bridge_port->vlans_list, list)
 550                 mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, bridge_vlan,
 551                                                   bridge_port->stp_state);
 552         return err;
 553 }
 554
 555 static int
 556 mlxsw_sp_port_bridge_vlan_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
 557                                     struct mlxsw_sp_bridge_vlan *bridge_vlan,
 558                                     enum mlxsw_sp_flood_type packet_type,
 559                                     bool member)
 560 {
 561         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 562
 563         list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
 564                             bridge_vlan_node) {
 565                 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
 566                         continue;
 567                 return mlxsw_sp_fid_flood_set(mlxsw_sp_port_vlan->fid,
 568                                               packet_type,
 569                                               mlxsw_sp_port->local_port,
 570                                               member);
 571         }
 572
 573         return 0;
 574 }
 575
 576 static int
 577 mlxsw_sp_bridge_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port,
 578                                      struct mlxsw_sp_bridge_port *bridge_port,
 579                                      enum mlxsw_sp_flood_type packet_type,
 580                                      bool member)
 581 {
 582         struct mlxsw_sp_bridge_vlan *bridge_vlan;
 583         int err;
 584
 585         list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
 586                 err = mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port,
 587                                                           bridge_vlan,
 588                                                           packet_type,
 589                                                           member);
 590                 if (err)
 591                         goto err_port_bridge_vlan_flood_set;
 592         }
 593
 594         return 0;
 595
 596 err_port_bridge_vlan_flood_set:
 597         list_for_each_entry_continue_reverse(bridge_vlan,
 598                                              &bridge_port->vlans_list, list)
 599                 mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, bridge_vlan,
 600                                                     packet_type, !member);
 601         return err;
 602 }
 603
 604 static int
 605 mlxsw_sp_port_bridge_vlan_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
 606                                        struct mlxsw_sp_bridge_vlan *bridge_vlan,
 607                                        bool set)
 608 {
 609         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
 610         u16 vid = bridge_vlan->vid;
 611
 612         list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
 613                             bridge_vlan_node) {
 614                 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
 615                         continue;
 616                 return mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, set);
 617         }
 618
 619         return 0;
 620 }
 621
 622 static int
 623 mlxsw_sp_bridge_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
 624                                   struct mlxsw_sp_bridge_port *bridge_port,
 625                                   bool set)
 626 {
 627         struct mlxsw_sp_bridge_vlan *bridge_vlan;
 628         int err;
 629
 630         list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
 631                 err = mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port,
 632                                                              bridge_vlan, set);
 633                 if (err)
 634                         goto err_port_bridge_vlan_learning_set;
 635         }
 636
 637         return 0;
 638
 639 err_port_bridge_vlan_learning_set:
 640         list_for_each_entry_continue_reverse(bridge_vlan,
 641                                              &bridge_port->vlans_list, list)
 642                 mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port,
 643                                                        bridge_vlan, !set);
 644         return err;
 645 }
 646
 647 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
 648                                            struct switchdev_trans *trans,
 649                                            struct net_device *orig_dev,
 650                                            unsigned long brport_flags)
 651 {
 652         struct mlxsw_sp_bridge_port *bridge_port;
 653         int err;
 654
 655         if (switchdev_trans_ph_prepare(trans))
 656                 return 0;
 657
 658         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
 659                                                 orig_dev);
 660         if (!bridge_port)
 661                 return 0;
 662
 663         err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
 664                                                    MLXSW_SP_FLOOD_TYPE_UC,
 665                                                    brport_flags & BR_FLOOD);
 666         if (err)
 667                 return err;
 668
 669         err = mlxsw_sp_bridge_port_learning_set(mlxsw_sp_port, bridge_port,
 670                                                 brport_flags & BR_LEARNING);
 671         if (err)
 672                 return err;
 673
 674         if (bridge_port->bridge_device->multicast_enabled)
 675                 goto out;
 676
 677         err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
 678                                                    MLXSW_SP_FLOOD_TYPE_MC,
 679                                                    brport_flags &
 680                                                    BR_MCAST_FLOOD);
 681         if (err)
 682                 return err;
 683
 684 out:
 685         memcpy(&bridge_port->flags, &brport_flags, sizeof(brport_flags));
 686         return 0;
 687 }
 688
 689 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
 690 {
 691         char sfdat_pl[MLXSW_REG_SFDAT_LEN];
 692         int err;
 693
 694         mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
 695         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
 696         if (err)
 697                 return err;
 698         mlxsw_sp->bridge->ageing_time = ageing_time;
 699         return 0;
 700 }
 701
 702 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
 703                                             struct switchdev_trans *trans,
 704                                             unsigned long ageing_clock_t)
 705 {
 706         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 707         unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
 708         u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
 709
 710         if (switchdev_trans_ph_prepare(trans)) {
 711                 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
 712                     ageing_time > MLXSW_SP_MAX_AGEING_TIME)
 713                         return -ERANGE;
 714                 else
 715                         return 0;
 716         }
 717
 718         return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
 719 }
 720
 721 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
 722                                           struct switchdev_trans *trans,
 723                                           struct net_device *orig_dev,
 724                                           bool vlan_enabled)
 725 {
 726         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 727         struct mlxsw_sp_bridge_device *bridge_device;
 728
 729         if (!switchdev_trans_ph_prepare(trans))
 730                 return 0;
 731
 732         bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
 733         if (WARN_ON(!bridge_device))
 734                 return -EINVAL;
 735
 736         if (bridge_device->vlan_enabled == vlan_enabled)
 737                 return 0;
 738
 739         netdev_err(bridge_device->dev, "VLAN filtering can't be changed for existing bridge\n");
 740         return -EINVAL;
 741 }
 742
 743 static int mlxsw_sp_port_attr_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port,
 744                                           struct switchdev_trans *trans,
 745                                           struct net_device *orig_dev,
 746                                           bool is_port_mrouter)
 747 {
 748         struct mlxsw_sp_bridge_port *bridge_port;
 749         int err;
 750
 751         if (switchdev_trans_ph_prepare(trans))
 752                 return 0;
 753
 754         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
 755                                                 orig_dev);
 756         if (!bridge_port)
 757                 return 0;
 758
 759         if (!bridge_port->bridge_device->multicast_enabled)
 760                 goto out;
 761
 762         err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
 763                                                    MLXSW_SP_FLOOD_TYPE_MC,
 764                                                    is_port_mrouter);
 765         if (err)
 766                 return err;
 767
 768         mlxsw_sp_port_mrouter_update_mdb(mlxsw_sp_port, bridge_port,
 769                                          is_port_mrouter);
 770 out:
 771         bridge_port->mrouter = is_port_mrouter;
 772         return 0;
 773 }
 774
 775 static bool mlxsw_sp_mc_flood(const struct mlxsw_sp_bridge_port *bridge_port)
 776 {
 777         const struct mlxsw_sp_bridge_device *bridge_device;
 778
 779         bridge_device = bridge_port->bridge_device;
 780         return bridge_device->multicast_enabled ? bridge_port->mrouter :
 781                                         bridge_port->flags & BR_MCAST_FLOOD;
 782 }
 783
 784 static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port,
 785                                          struct switchdev_trans *trans,
 786                                          struct net_device *orig_dev,
 787                                          bool mc_disabled)
 788 {
 789         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 790         struct mlxsw_sp_bridge_device *bridge_device;
 791         struct mlxsw_sp_bridge_port *bridge_port;
 792         int err;
 793
 794         if (switchdev_trans_ph_prepare(trans))
 795                 return 0;
 796
 797         /* It's possible we failed to enslave the port, yet this
 798          * operation is executed due to it being deferred.
 799          */
 800         bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
 801         if (!bridge_device)
 802                 return 0;
 803
 804         if (bridge_device->multicast_enabled != !mc_disabled) {
 805                 bridge_device->multicast_enabled = !mc_disabled;
 806                 mlxsw_sp_bridge_mdb_mc_enable_sync(mlxsw_sp_port,
 807                                                    bridge_device);
 808         }
 809
 810         list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
 811                 enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC;
 812                 bool member = mlxsw_sp_mc_flood(bridge_port);
 813
 814                 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port,
 815                                                            bridge_port,
 816                                                            packet_type, member);
 817                 if (err)
 818                         return err;
 819         }
 820
 821         bridge_device->multicast_enabled = !mc_disabled;
 822
 823         return 0;
 824 }
 825
 826 static int mlxsw_sp_smid_router_port_set(struct mlxsw_sp *mlxsw_sp,
 827                                          u16 mid_idx, bool add)
 828 {
 829         char *smid_pl;
 830         int err;
 831
 832         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
 833         if (!smid_pl)
 834                 return -ENOMEM;
 835
 836         mlxsw_reg_smid_pack(smid_pl, mid_idx,
 837                             mlxsw_sp_router_port(mlxsw_sp), add);
 838         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
 839         kfree(smid_pl);
 840         return err;
 841 }
 842
 843 static void
 844 mlxsw_sp_bridge_mrouter_update_mdb(struct mlxsw_sp *mlxsw_sp,
 845                                    struct mlxsw_sp_bridge_device *bridge_device,
 846                                    bool add)
 847 {
 848         struct mlxsw_sp_mid *mid;
 849
 850         list_for_each_entry(mid, &bridge_device->mids_list, list)
 851                 mlxsw_sp_smid_router_port_set(mlxsw_sp, mid->mid, add);
 852 }
 853
 854 static int
 855 mlxsw_sp_port_attr_br_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port,
 856                                   struct switchdev_trans *trans,
 857                                   struct net_device *orig_dev,
 858                                   bool is_mrouter)
 859 {
 860         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 861         struct mlxsw_sp_bridge_device *bridge_device;
 862
 863         if (switchdev_trans_ph_prepare(trans))
 864                 return 0;
 865
 866         /* It's possible we failed to enslave the port, yet this
 867          * operation is executed due to it being deferred.
 868          */
 869         bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
 870         if (!bridge_device)
 871                 return 0;
 872
 873         if (bridge_device->mrouter != is_mrouter)
 874                 mlxsw_sp_bridge_mrouter_update_mdb(mlxsw_sp, bridge_device,
 875                                                    is_mrouter);
 876         bridge_device->mrouter = is_mrouter;
 877         return 0;
 878 }
 879
 880 static int mlxsw_sp_port_attr_set(struct net_device *dev,
 881                                   const struct switchdev_attr *attr,
 882                                   struct switchdev_trans *trans)
 883 {
 884         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 885         int err;
 886
 887         switch (attr->id) {
 888         case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
 889                 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
 890                                                        attr->orig_dev,
 891                                                        attr->u.stp_state);
 892                 break;
 893         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
 894                 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
 895                                                       attr->orig_dev,
 896                                                       attr->u.brport_flags);
 897                 break;
 898         case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
 899                 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
 900                                                        attr->u.ageing_time);
 901                 break;
 902         case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
 903                 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
 904                                                      attr->orig_dev,
 905                                                      attr->u.vlan_filtering);
 906                 break;
 907         case SWITCHDEV_ATTR_ID_PORT_MROUTER:
 908                 err = mlxsw_sp_port_attr_mrouter_set(mlxsw_sp_port, trans,
 909                                                      attr->orig_dev,
 910                                                      attr->u.mrouter);
 911                 break;
 912         case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
 913                 err = mlxsw_sp_port_mc_disabled_set(mlxsw_sp_port, trans,
 914                                                     attr->orig_dev,
 915                                                     attr->u.mc_disabled);
 916                 break;
 917         case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER:
 918                 err = mlxsw_sp_port_attr_br_mrouter_set(mlxsw_sp_port, trans,
 919                                                         attr->orig_dev,
 920                                                         attr->u.mrouter);
 921                 break;
 922         default:
 923                 err = -EOPNOTSUPP;
 924                 break;
 925         }
 926
 927         if (switchdev_trans_ph_commit(trans))
 928                 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp);
 929
 930         return err;
 931 }
 932
 933 static int
 934 mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
 935                             struct mlxsw_sp_bridge_port *bridge_port)
 936 {
 937         struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
 938         struct mlxsw_sp_bridge_device *bridge_device;
 939         u8 local_port = mlxsw_sp_port->local_port;
 940         u16 vid = mlxsw_sp_port_vlan->vid;
 941         struct mlxsw_sp_fid *fid;
 942         int err;
 943
 944         bridge_device = bridge_port->bridge_device;
 945         fid = bridge_device->ops->fid_get(bridge_device, vid);
 946         if (IS_ERR(fid))
 947                 return PTR_ERR(fid);
 948
 949         err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port,
 950                                      bridge_port->flags & BR_FLOOD);
 951         if (err)
 952                 goto err_fid_uc_flood_set;
 953
 954         err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port,
 955                                      mlxsw_sp_mc_flood(bridge_port));
 956         if (err)
 957                 goto err_fid_mc_flood_set;
 958
 959         err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port,
 960                                      true);
 961         if (err)
 962                 goto err_fid_bc_flood_set;
 963
 964         err = mlxsw_sp_fid_port_vid_map(fid, mlxsw_sp_port, vid);
 965         if (err)
 966                 goto err_fid_port_vid_map;
 967
 968         mlxsw_sp_port_vlan->fid = fid;
 969
 970         return 0;
 971
 972 err_fid_port_vid_map:
 973         mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false);
 974 err_fid_bc_flood_set:
 975         mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false);
 976 err_fid_mc_flood_set:
 977         mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false);
 978 err_fid_uc_flood_set:
 979         mlxsw_sp_fid_put(fid);
 980         return err;
 981 }
 982
 983 static void
 984 mlxsw_sp_port_vlan_fid_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
 985 {
 986         struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
 987         struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
 988         u8 local_port = mlxsw_sp_port->local_port;
 989         u16 vid = mlxsw_sp_port_vlan->vid;
 990
 991         mlxsw_sp_port_vlan->fid = NULL;
 992         mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid);
 993         mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false);
 994         mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false);
 995         mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false);
 996         mlxsw_sp_fid_put(fid);
 997 }
 998
 999 static u16
1000 mlxsw_sp_port_pvid_determine(const struct mlxsw_sp_port *mlxsw_sp_port,
1001                              u16 vid, bool is_pvid)
1002 {
1003         if (is_pvid)
1004                 return vid;
1005         else if (mlxsw_sp_port->pvid == vid)
1006                 return 0;       /* Dis-allow untagged packets */
1007         else
1008                 return mlxsw_sp_port->pvid;
1009 }
1010
1011 static int
1012 mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
1013                                struct mlxsw_sp_bridge_port *bridge_port)
1014 {
1015         struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
1016         struct mlxsw_sp_bridge_vlan *bridge_vlan;
1017         u16 vid = mlxsw_sp_port_vlan->vid;
1018         int err;
1019
1020         /* No need to continue if only VLAN flags were changed */
1021         if (mlxsw_sp_port_vlan->bridge_port)
1022                 return 0;
1023
1024         err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port);
1025         if (err)
1026                 return err;
1027
1028         err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid,
1029                                              bridge_port->flags & BR_LEARNING);
1030         if (err)
1031                 goto err_port_vid_learning_set;
1032
1033         err = mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid,
1034                                         bridge_port->stp_state);
1035         if (err)
1036                 goto err_port_vid_stp_set;
1037
1038         bridge_vlan = mlxsw_sp_bridge_vlan_get(bridge_port, vid);
1039         if (!bridge_vlan) {
1040                 err = -ENOMEM;
1041                 goto err_bridge_vlan_get;
1042         }
1043
1044         list_add(&mlxsw_sp_port_vlan->bridge_vlan_node,
1045                  &bridge_vlan->port_vlan_list);
1046
1047         mlxsw_sp_bridge_port_get(mlxsw_sp_port->mlxsw_sp->bridge,
1048                                  bridge_port->dev);
1049         mlxsw_sp_port_vlan->bridge_port = bridge_port;
1050
1051         return 0;
1052
1053 err_bridge_vlan_get:
1054         mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED);
1055 err_port_vid_stp_set:
1056         mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false);
1057 err_port_vid_learning_set:
1058         mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan);
1059         return err;
1060 }
1061
1062 void
1063 mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
1064 {
1065         struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
1066         struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
1067         struct mlxsw_sp_bridge_vlan *bridge_vlan;
1068         struct mlxsw_sp_bridge_port *bridge_port;
1069         u16 vid = mlxsw_sp_port_vlan->vid;
1070         bool last_port, last_vlan;
1071
1072         if (WARN_ON(mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021Q &&
1073                     mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021D))
1074                 return;
1075
1076         bridge_port = mlxsw_sp_port_vlan->bridge_port;
1077         last_vlan = list_is_singular(&bridge_port->vlans_list);
1078         bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
1079         last_port = list_is_singular(&bridge_vlan->port_vlan_list);
1080
1081         list_del(&mlxsw_sp_port_vlan->bridge_vlan_node);
1082         mlxsw_sp_bridge_vlan_put(bridge_vlan);
1083         mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED);
1084         mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false);
1085         if (last_port)
1086                 mlxsw_sp_bridge_port_fdb_flush(mlxsw_sp_port->mlxsw_sp,
1087                                                bridge_port,
1088                                                mlxsw_sp_fid_index(fid));
1089         if (last_vlan)
1090                 mlxsw_sp_bridge_port_mdb_flush(mlxsw_sp_port, bridge_port);
1091
1092         mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan);
1093
1094         mlxsw_sp_bridge_port_put(mlxsw_sp_port->mlxsw_sp->bridge, bridge_port);
1095         mlxsw_sp_port_vlan->bridge_port = NULL;
1096 }
1097
1098 static int
1099 mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
1100                               struct mlxsw_sp_bridge_port *bridge_port,
1101                               u16 vid, bool is_untagged, bool is_pvid)
1102 {
1103         u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid);
1104         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1105         u16 old_pvid = mlxsw_sp_port->pvid;
1106         int err;
1107
1108         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, vid);
1109         if (IS_ERR(mlxsw_sp_port_vlan))
1110                 return PTR_ERR(mlxsw_sp_port_vlan);
1111
1112         err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true,
1113                                      is_untagged);
1114         if (err)
1115                 goto err_port_vlan_set;
1116
1117         err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
1118         if (err)
1119                 goto err_port_pvid_set;
1120
1121         err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
1122         if (err)
1123                 goto err_port_vlan_bridge_join;
1124
1125         return 0;
1126
1127 err_port_vlan_bridge_join:
1128         mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
1129 err_port_pvid_set:
1130         mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1131 err_port_vlan_set:
1132         mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1133         return err;
1134 }
1135
1136 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
1137                                    const struct switchdev_obj_port_vlan *vlan,
1138                                    struct switchdev_trans *trans)
1139 {
1140         bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1141         bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1142         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1143         struct net_device *orig_dev = vlan->obj.orig_dev;
1144         struct mlxsw_sp_bridge_port *bridge_port;
1145         u16 vid;
1146
1147         if (switchdev_trans_ph_prepare(trans))
1148                 return 0;
1149
1150         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1151         if (WARN_ON(!bridge_port))
1152                 return -EINVAL;
1153
1154         if (!bridge_port->bridge_device->vlan_enabled)
1155                 return 0;
1156
1157         for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
1158                 int err;
1159
1160                 err = mlxsw_sp_bridge_port_vlan_add(mlxsw_sp_port, bridge_port,
1161                                                     vid, flag_untagged,
1162                                                     flag_pvid);
1163                 if (err)
1164                         return err;
1165         }
1166
1167         return 0;
1168 }
1169
1170 static enum mlxsw_reg_sfdf_flush_type mlxsw_sp_fdb_flush_type(bool lagged)
1171 {
1172         return lagged ? MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID :
1173                         MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID;
1174 }
1175
1176 static int
1177 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
1178                                struct mlxsw_sp_bridge_port *bridge_port,
1179                                u16 fid_index)
1180 {
1181         bool lagged = bridge_port->lagged;
1182         char sfdf_pl[MLXSW_REG_SFDF_LEN];
1183         u16 system_port;
1184
1185         system_port = lagged ? bridge_port->lag_id : bridge_port->system_port;
1186         mlxsw_reg_sfdf_pack(sfdf_pl, mlxsw_sp_fdb_flush_type(lagged));
1187         mlxsw_reg_sfdf_fid_set(sfdf_pl, fid_index);
1188         mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, system_port);
1189
1190         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
1191 }
1192
1193 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
1194 {
1195         return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
1196                          MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
1197 }
1198
1199 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
1200 {
1201         return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
1202                         MLXSW_REG_SFD_OP_WRITE_REMOVE;
1203 }
1204
1205 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1206                                      const char *mac, u16 fid, bool adding,
1207                                      enum mlxsw_reg_sfd_rec_action action,
1208                                      bool dynamic)
1209 {
1210         char *sfd_pl;
1211         u8 num_rec;
1212         int err;
1213
1214         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1215         if (!sfd_pl)
1216                 return -ENOMEM;
1217
1218         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1219         mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1220                               mac, fid, action, local_port);
1221         num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1222         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1223         if (err)
1224                 goto out;
1225
1226         if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
1227                 err = -EBUSY;
1228
1229 out:
1230         kfree(sfd_pl);
1231         return err;
1232 }
1233
1234 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1235                                    const char *mac, u16 fid, bool adding,
1236                                    bool dynamic)
1237 {
1238         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
1239                                          MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
1240 }
1241
1242 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
1243                         bool adding)
1244 {
1245         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
1246                                          MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
1247                                          false);
1248 }
1249
1250 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
1251                                        const char *mac, u16 fid, u16 lag_vid,
1252                                        bool adding, bool dynamic)
1253 {
1254         char *sfd_pl;
1255         u8 num_rec;
1256         int err;
1257
1258         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1259         if (!sfd_pl)
1260                 return -ENOMEM;
1261
1262         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1263         mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1264                                   mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
1265                                   lag_vid, lag_id);
1266         num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1267         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1268         if (err)
1269                 goto out;
1270
1271         if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
1272                 err = -EBUSY;
1273
1274 out:
1275         kfree(sfd_pl);
1276         return err;
1277 }
1278
1279 static int
1280 mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port,
1281                       struct switchdev_notifier_fdb_info *fdb_info, bool adding)
1282 {
1283         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1284         struct net_device *orig_dev = fdb_info->info.dev;
1285         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1286         struct mlxsw_sp_bridge_device *bridge_device;
1287         struct mlxsw_sp_bridge_port *bridge_port;
1288         u16 fid_index, vid;
1289
1290         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1291         if (!bridge_port)
1292                 return -EINVAL;
1293
1294         bridge_device = bridge_port->bridge_device;
1295         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1296                                                                bridge_device,
1297                                                                fdb_info->vid);
1298         if (!mlxsw_sp_port_vlan)
1299                 return 0;
1300
1301         fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1302         vid = mlxsw_sp_port_vlan->vid;
1303
1304         if (!bridge_port->lagged)
1305                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp,
1306                                                bridge_port->system_port,
1307                                                fdb_info->addr, fid_index,
1308                                                adding, false);
1309         else
1310                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp,
1311                                                    bridge_port->lag_id,
1312                                                    fdb_info->addr, fid_index,
1313                                                    vid, adding, false);
1314 }
1315
1316 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
1317                                 u16 fid, u16 mid_idx, bool adding)
1318 {
1319         char *sfd_pl;
1320         u8 num_rec;
1321         int err;
1322
1323         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1324         if (!sfd_pl)
1325                 return -ENOMEM;
1326
1327         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1328         mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
1329                               MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx);
1330         num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1331         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1332         if (err)
1333                 goto out;
1334
1335         if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
1336                 err = -EBUSY;
1337
1338 out:
1339         kfree(sfd_pl);
1340         return err;
1341 }
1342
1343 static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx,
1344                                          long *ports_bitmap,
1345                                          bool set_router_port)
1346 {
1347         char *smid_pl;
1348         int err, i;
1349
1350         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1351         if (!smid_pl)
1352                 return -ENOMEM;
1353
1354         mlxsw_reg_smid_pack(smid_pl, mid_idx, 0, false);
1355         for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) {
1356                 if (mlxsw_sp->ports[i])
1357                         mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
1358         }
1359
1360         mlxsw_reg_smid_port_mask_set(smid_pl,
1361                                      mlxsw_sp_router_port(mlxsw_sp), 1);
1362
1363         for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core))
1364                 mlxsw_reg_smid_port_set(smid_pl, i, 1);
1365
1366         mlxsw_reg_smid_port_set(smid_pl, mlxsw_sp_router_port(mlxsw_sp),
1367                                 set_router_port);
1368
1369         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1370         kfree(smid_pl);
1371         return err;
1372 }
1373
1374 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port,
1375                                   u16 mid_idx, bool add)
1376 {
1377         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1378         char *smid_pl;
1379         int err;
1380
1381         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1382         if (!smid_pl)
1383                 return -ENOMEM;
1384
1385         mlxsw_reg_smid_pack(smid_pl, mid_idx, mlxsw_sp_port->local_port, add);
1386         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1387         kfree(smid_pl);
1388         return err;
1389 }
1390
1391 static struct
1392 mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp_bridge_device *bridge_device,
1393                                 const unsigned char *addr,
1394                                 u16 fid)
1395 {
1396         struct mlxsw_sp_mid *mid;
1397
1398         list_for_each_entry(mid, &bridge_device->mids_list, list) {
1399                 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid)
1400                         return mid;
1401         }
1402         return NULL;
1403 }
1404
1405 static void
1406 mlxsw_sp_bridge_port_get_ports_bitmap(struct mlxsw_sp *mlxsw_sp,
1407                                       struct mlxsw_sp_bridge_port *bridge_port,
1408                                       unsigned long *ports_bitmap)
1409 {
1410         struct mlxsw_sp_port *mlxsw_sp_port;
1411         u64 max_lag_members, i;
1412         int lag_id;
1413
1414         if (!bridge_port->lagged) {
1415                 set_bit(bridge_port->system_port, ports_bitmap);
1416         } else {
1417                 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1418                                                      MAX_LAG_MEMBERS);
1419                 lag_id = bridge_port->lag_id;
1420                 for (i = 0; i < max_lag_members; i++) {
1421                         mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp,
1422                                                                  lag_id, i);
1423                         if (mlxsw_sp_port)
1424                                 set_bit(mlxsw_sp_port->local_port,
1425                                         ports_bitmap);
1426                 }
1427         }
1428 }
1429
1430 static void
1431 mlxsw_sp_mc_get_mrouters_bitmap(unsigned long *flood_bitmap,
1432                                 struct mlxsw_sp_bridge_device *bridge_device,
1433                                 struct mlxsw_sp *mlxsw_sp)
1434 {
1435         struct mlxsw_sp_bridge_port *bridge_port;
1436
1437         list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
1438                 if (bridge_port->mrouter) {
1439                         mlxsw_sp_bridge_port_get_ports_bitmap(mlxsw_sp,
1440                                                               bridge_port,
1441                                                               flood_bitmap);
1442                 }
1443         }
1444 }
1445
1446 static bool
1447 mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp,
1448                             struct mlxsw_sp_mid *mid,
1449                             struct mlxsw_sp_bridge_device *bridge_device)
1450 {
1451         long *flood_bitmap;
1452         int num_of_ports;
1453         int alloc_size;
1454         u16 mid_idx;
1455         int err;
1456
1457         mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap,
1458                                       MLXSW_SP_MID_MAX);
1459         if (mid_idx == MLXSW_SP_MID_MAX)
1460                 return false;
1461
1462         num_of_ports = mlxsw_core_max_ports(mlxsw_sp->core);
1463         alloc_size = sizeof(long) * BITS_TO_LONGS(num_of_ports);
1464         flood_bitmap = kzalloc(alloc_size, GFP_KERNEL);
1465         if (!flood_bitmap)
1466                 return false;
1467
1468         bitmap_copy(flood_bitmap,  mid->ports_in_mid, num_of_ports);
1469         mlxsw_sp_mc_get_mrouters_bitmap(flood_bitmap, bridge_device, mlxsw_sp);
1470
1471         mid->mid = mid_idx;
1472         err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx, flood_bitmap,
1473                                             bridge_device->mrouter);
1474         kfree(flood_bitmap);
1475         if (err)
1476                 return false;
1477
1478         err = mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid_idx,
1479                                    true);
1480         if (err)
1481                 return false;
1482
1483         set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap);
1484         mid->in_hw = true;
1485         return true;
1486 }
1487
1488 static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp,
1489                                         struct mlxsw_sp_mid *mid)
1490 {
1491         if (!mid->in_hw)
1492                 return 0;
1493
1494         clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap);
1495         mid->in_hw = false;
1496         return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid,
1497                                     false);
1498 }
1499
1500 static struct
1501 mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
1502                                   struct mlxsw_sp_bridge_device *bridge_device,
1503                                   const unsigned char *addr,
1504                                   u16 fid)
1505 {
1506         struct mlxsw_sp_mid *mid;
1507         size_t alloc_size;
1508
1509         mid = kzalloc(sizeof(*mid), GFP_KERNEL);
1510         if (!mid)
1511                 return NULL;
1512
1513         alloc_size = sizeof(unsigned long) *
1514                      BITS_TO_LONGS(mlxsw_core_max_ports(mlxsw_sp->core));
1515
1516         mid->ports_in_mid = kzalloc(alloc_size, GFP_KERNEL);
1517         if (!mid->ports_in_mid)
1518                 goto err_ports_in_mid_alloc;
1519
1520         ether_addr_copy(mid->addr, addr);
1521         mid->fid = fid;
1522         mid->in_hw = false;
1523
1524         if (!bridge_device->multicast_enabled)
1525                 goto out;
1526
1527         if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device))
1528                 goto err_write_mdb_entry;
1529
1530 out:
1531         list_add_tail(&mid->list, &bridge_device->mids_list);
1532         return mid;
1533
1534 err_write_mdb_entry:
1535         kfree(mid->ports_in_mid);
1536 err_ports_in_mid_alloc:
1537         kfree(mid);
1538         return NULL;
1539 }
1540
1541 static int mlxsw_sp_port_remove_from_mid(struct mlxsw_sp_port *mlxsw_sp_port,
1542                                          struct mlxsw_sp_mid *mid)
1543 {
1544         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1545         int err = 0;
1546
1547         clear_bit(mlxsw_sp_port->local_port, mid->ports_in_mid);
1548         if (bitmap_empty(mid->ports_in_mid,
1549                          mlxsw_core_max_ports(mlxsw_sp->core))) {
1550                 err = mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
1551                 list_del(&mid->list);
1552                 kfree(mid->ports_in_mid);
1553                 kfree(mid);
1554         }
1555         return err;
1556 }
1557
1558 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
1559                                  const struct switchdev_obj_port_mdb *mdb,
1560                                  struct switchdev_trans *trans)
1561 {
1562         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1563         struct net_device *orig_dev = mdb->obj.orig_dev;
1564         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1565         struct net_device *dev = mlxsw_sp_port->dev;
1566         struct mlxsw_sp_bridge_device *bridge_device;
1567         struct mlxsw_sp_bridge_port *bridge_port;
1568         struct mlxsw_sp_mid *mid;
1569         u16 fid_index;
1570         int err = 0;
1571
1572         if (switchdev_trans_ph_prepare(trans))
1573                 return 0;
1574
1575         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1576         if (!bridge_port)
1577                 return 0;
1578
1579         bridge_device = bridge_port->bridge_device;
1580         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1581                                                                bridge_device,
1582                                                                mdb->vid);
1583         if (!mlxsw_sp_port_vlan)
1584                 return 0;
1585
1586         fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1587
1588         mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index);
1589         if (!mid) {
1590                 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, bridge_device, mdb->addr,
1591                                           fid_index);
1592                 if (!mid) {
1593                         netdev_err(dev, "Unable to allocate MC group\n");
1594                         return -ENOMEM;
1595                 }
1596         }
1597         set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid);
1598
1599         if (!bridge_device->multicast_enabled)
1600                 return 0;
1601
1602         if (bridge_port->mrouter)
1603                 return 0;
1604
1605         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true);
1606         if (err) {
1607                 netdev_err(dev, "Unable to set SMID\n");
1608                 goto err_out;
1609         }
1610
1611         return 0;
1612
1613 err_out:
1614         mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
1615         return err;
1616 }
1617
1618 static void
1619 mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
1620                                    struct mlxsw_sp_bridge_device
1621                                    *bridge_device)
1622 {
1623         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1624         struct mlxsw_sp_mid *mid;
1625         bool mc_enabled;
1626
1627         mc_enabled = bridge_device->multicast_enabled;
1628
1629         list_for_each_entry(mid, &bridge_device->mids_list, list) {
1630                 if (mc_enabled)
1631                         mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid,
1632                                                     bridge_device);
1633                 else
1634                         mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
1635         }
1636 }
1637
1638 static void
1639 mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port,
1640                                  struct mlxsw_sp_bridge_port *bridge_port,
1641                                  bool add)
1642 {
1643         struct mlxsw_sp_bridge_device *bridge_device;
1644         struct mlxsw_sp_mid *mid;
1645
1646         bridge_device = bridge_port->bridge_device;
1647
1648         list_for_each_entry(mid, &bridge_device->mids_list, list) {
1649                 if (!test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid))
1650                         mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, add);
1651         }
1652 }
1653
1654 struct mlxsw_sp_span_respin_work {
1655         struct work_struct work;
1656         struct mlxsw_sp *mlxsw_sp;
1657 };
1658
1659 static void mlxsw_sp_span_respin_work(struct work_struct *work)
1660 {
1661         struct mlxsw_sp_span_respin_work *respin_work =
1662                 container_of(work, struct mlxsw_sp_span_respin_work, work);
1663
1664         rtnl_lock();
1665         mlxsw_sp_span_respin(respin_work->mlxsw_sp);
1666         rtnl_unlock();
1667         kfree(respin_work);
1668 }
1669
1670 static void mlxsw_sp_span_respin_schedule(struct mlxsw_sp *mlxsw_sp)
1671 {
1672         struct mlxsw_sp_span_respin_work *respin_work;
1673
1674         respin_work = kzalloc(sizeof(*respin_work), GFP_ATOMIC);
1675         if (!respin_work)
1676                 return;
1677
1678         INIT_WORK(&respin_work->work, mlxsw_sp_span_respin_work);
1679         respin_work->mlxsw_sp = mlxsw_sp;
1680
1681         mlxsw_core_schedule_work(&respin_work->work);
1682 }
1683
1684 static int mlxsw_sp_port_obj_add(struct net_device *dev,
1685                                  const struct switchdev_obj *obj,
1686                                  struct switchdev_trans *trans)
1687 {
1688         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1689         const struct switchdev_obj_port_vlan *vlan;
1690         int err = 0;
1691
1692         switch (obj->id) {
1693         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1694                 vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
1695                 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, trans);
1696
1697                 if (switchdev_trans_ph_commit(trans)) {
1698                         /* The event is emitted before the changes are actually
1699                          * applied to the bridge. Therefore schedule the respin
1700                          * call for later, so that the respin logic sees the
1701                          * updated bridge state.
1702                          */
1703                         mlxsw_sp_span_respin_schedule(mlxsw_sp_port->mlxsw_sp);
1704                 }
1705                 break;
1706         case SWITCHDEV_OBJ_ID_PORT_MDB:
1707                 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
1708                                             SWITCHDEV_OBJ_PORT_MDB(obj),
1709                                             trans);
1710                 break;
1711         default:
1712                 err = -EOPNOTSUPP;
1713                 break;
1714         }
1715
1716         return err;
1717 }
1718
1719 static void
1720 mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port,
1721                               struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
1722 {
1723         u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : vid;
1724         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1725
1726         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1727         if (WARN_ON(!mlxsw_sp_port_vlan))
1728                 return;
1729
1730         mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1731         mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
1732         mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1733         mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1734 }
1735
1736 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1737                                    const struct switchdev_obj_port_vlan *vlan)
1738 {
1739         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1740         struct net_device *orig_dev = vlan->obj.orig_dev;
1741         struct mlxsw_sp_bridge_port *bridge_port;
1742         u16 vid;
1743
1744         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1745         if (WARN_ON(!bridge_port))
1746                 return -EINVAL;
1747
1748         if (!bridge_port->bridge_device->vlan_enabled)
1749                 return 0;
1750
1751         for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++)
1752                 mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vid);
1753
1754         return 0;
1755 }
1756
1757 static int
1758 __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1759                         struct mlxsw_sp_bridge_port *bridge_port,
1760                         struct mlxsw_sp_mid *mid)
1761 {
1762         struct net_device *dev = mlxsw_sp_port->dev;
1763         int err;
1764
1765         if (bridge_port->bridge_device->multicast_enabled) {
1766                 if (bridge_port->bridge_device->multicast_enabled) {
1767                         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid,
1768                                                      false);
1769                         if (err)
1770                                 netdev_err(dev, "Unable to remove port from SMID\n");
1771                 }
1772         }
1773
1774         err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
1775         if (err)
1776                 netdev_err(dev, "Unable to remove MC SFD\n");
1777
1778         return err;
1779 }
1780
1781 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1782                                  const struct switchdev_obj_port_mdb *mdb)
1783 {
1784         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1785         struct net_device *orig_dev = mdb->obj.orig_dev;
1786         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1787         struct mlxsw_sp_bridge_device *bridge_device;
1788         struct net_device *dev = mlxsw_sp_port->dev;
1789         struct mlxsw_sp_bridge_port *bridge_port;
1790         struct mlxsw_sp_mid *mid;
1791         u16 fid_index;
1792
1793         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1794         if (!bridge_port)
1795                 return 0;
1796
1797         bridge_device = bridge_port->bridge_device;
1798         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1799                                                                bridge_device,
1800                                                                mdb->vid);
1801         if (!mlxsw_sp_port_vlan)
1802                 return 0;
1803
1804         fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1805
1806         mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index);
1807         if (!mid) {
1808                 netdev_err(dev, "Unable to remove port from MC DB\n");
1809                 return -EINVAL;
1810         }
1811
1812         return __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid);
1813 }
1814
1815 static void
1816 mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port,
1817                                struct mlxsw_sp_bridge_port *bridge_port)
1818 {
1819         struct mlxsw_sp_bridge_device *bridge_device;
1820         struct mlxsw_sp_mid *mid, *tmp;
1821
1822         bridge_device = bridge_port->bridge_device;
1823
1824         list_for_each_entry_safe(mid, tmp, &bridge_device->mids_list, list) {
1825                 if (test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) {
1826                         __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port,
1827                                                 mid);
1828                 } else if (bridge_device->multicast_enabled &&
1829                            bridge_port->mrouter) {
1830                         mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false);
1831                 }
1832         }
1833 }
1834
1835 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1836                                  const struct switchdev_obj *obj)
1837 {
1838         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1839         int err = 0;
1840
1841         switch (obj->id) {
1842         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1843                 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1844                                               SWITCHDEV_OBJ_PORT_VLAN(obj));
1845                 break;
1846         case SWITCHDEV_OBJ_ID_PORT_MDB:
1847                 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1848                                             SWITCHDEV_OBJ_PORT_MDB(obj));
1849                 break;
1850         default:
1851                 err = -EOPNOTSUPP;
1852                 break;
1853         }
1854
1855         mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp);
1856
1857         return err;
1858 }
1859
1860 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1861                                                    u16 lag_id)
1862 {
1863         struct mlxsw_sp_port *mlxsw_sp_port;
1864         u64 max_lag_members;
1865         int i;
1866
1867         max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1868                                              MAX_LAG_MEMBERS);
1869         for (i = 0; i < max_lag_members; i++) {
1870                 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1871                 if (mlxsw_sp_port)
1872                         return mlxsw_sp_port;
1873         }
1874         return NULL;
1875 }
1876
1877 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1878         .switchdev_port_attr_get        = mlxsw_sp_port_attr_get,
1879         .switchdev_port_attr_set        = mlxsw_sp_port_attr_set,
1880         .switchdev_port_obj_add         = mlxsw_sp_port_obj_add,
1881         .switchdev_port_obj_del         = mlxsw_sp_port_obj_del,
1882 };
1883
1884 static int
1885 mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1886                                 struct mlxsw_sp_bridge_port *bridge_port,
1887                                 struct mlxsw_sp_port *mlxsw_sp_port,
1888                                 struct netlink_ext_ack *extack)
1889 {
1890         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1891
1892         if (is_vlan_dev(bridge_port->dev)) {
1893                 NL_SET_ERR_MSG_MOD(extack, "Can not enslave a VLAN device to a VLAN-aware bridge");
1894                 return -EINVAL;
1895         }
1896
1897         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1);
1898         if (WARN_ON(!mlxsw_sp_port_vlan))
1899                 return -EINVAL;
1900
1901         /* Let VLAN-aware bridge take care of its own VLANs */
1902         mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1903
1904         return 0;
1905 }
1906
1907 static void
1908 mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1909                                  struct mlxsw_sp_bridge_port *bridge_port,
1910                                  struct mlxsw_sp_port *mlxsw_sp_port)
1911 {
1912         mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
1913         /* Make sure untagged frames are allowed to ingress */
1914         mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
1915 }
1916
1917 static struct mlxsw_sp_fid *
1918 mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1919                               u16 vid)
1920 {
1921         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1922
1923         return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid);
1924 }
1925
1926 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = {
1927         .port_join      = mlxsw_sp_bridge_8021q_port_join,
1928         .port_leave     = mlxsw_sp_bridge_8021q_port_leave,
1929         .fid_get        = mlxsw_sp_bridge_8021q_fid_get,
1930 };
1931
1932 static bool
1933 mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port,
1934                            const struct net_device *br_dev)
1935 {
1936         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1937
1938         list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
1939                             list) {
1940                 if (mlxsw_sp_port_vlan->bridge_port &&
1941                     mlxsw_sp_port_vlan->bridge_port->bridge_device->dev ==
1942                     br_dev)
1943                         return true;
1944         }
1945
1946         return false;
1947 }
1948
1949 static int
1950 mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1951                                 struct mlxsw_sp_bridge_port *bridge_port,
1952                                 struct mlxsw_sp_port *mlxsw_sp_port,
1953                                 struct netlink_ext_ack *extack)
1954 {
1955         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1956         struct net_device *dev = bridge_port->dev;
1957         u16 vid;
1958
1959         vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 1;
1960         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1961         if (WARN_ON(!mlxsw_sp_port_vlan))
1962                 return -EINVAL;
1963
1964         if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) {
1965                 NL_SET_ERR_MSG_MOD(extack, "Can not bridge VLAN uppers of the same port");
1966                 return -EINVAL;
1967         }
1968
1969         /* Port is no longer usable as a router interface */
1970         if (mlxsw_sp_port_vlan->fid)
1971                 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
1972
1973         return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
1974 }
1975
1976 static void
1977 mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1978                                  struct mlxsw_sp_bridge_port *bridge_port,
1979                                  struct mlxsw_sp_port *mlxsw_sp_port)
1980 {
1981         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1982         struct net_device *dev = bridge_port->dev;
1983         u16 vid;
1984
1985         vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 1;
1986         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1987         if (WARN_ON(!mlxsw_sp_port_vlan))
1988                 return;
1989
1990         mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1991 }
1992
1993 static struct mlxsw_sp_fid *
1994 mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1995                               u16 vid)
1996 {
1997         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1998
1999         return mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex);
2000 }
2001
2002 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = {
2003         .port_join      = mlxsw_sp_bridge_8021d_port_join,
2004         .port_leave     = mlxsw_sp_bridge_8021d_port_leave,
2005         .fid_get        = mlxsw_sp_bridge_8021d_fid_get,
2006 };
2007
2008 int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
2009                               struct net_device *brport_dev,
2010                               struct net_device *br_dev,
2011                               struct netlink_ext_ack *extack)
2012 {
2013         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2014         struct mlxsw_sp_bridge_device *bridge_device;
2015         struct mlxsw_sp_bridge_port *bridge_port;
2016         int err;
2017
2018         bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev);
2019         if (IS_ERR(bridge_port))
2020                 return PTR_ERR(bridge_port);
2021         bridge_device = bridge_port->bridge_device;
2022
2023         err = bridge_device->ops->port_join(bridge_device, bridge_port,
2024                                             mlxsw_sp_port, extack);
2025         if (err)
2026                 goto err_port_join;
2027
2028         return 0;
2029
2030 err_port_join:
2031         mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
2032         return err;
2033 }
2034
2035 void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
2036                                 struct net_device *brport_dev,
2037                                 struct net_device *br_dev)
2038 {
2039         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2040         struct mlxsw_sp_bridge_device *bridge_device;
2041         struct mlxsw_sp_bridge_port *bridge_port;
2042
2043         bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
2044         if (!bridge_device)
2045                 return;
2046         bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
2047         if (!bridge_port)
2048                 return;
2049
2050         bridge_device->ops->port_leave(bridge_device, bridge_port,
2051                                        mlxsw_sp_port);
2052         mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
2053 }
2054
2055 static void
2056 mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type,
2057                             const char *mac, u16 vid,
2058                             struct net_device *dev)
2059 {
2060         struct switchdev_notifier_fdb_info info;
2061
2062         info.addr = mac;
2063         info.vid = vid;
2064         call_switchdev_notifiers(type, dev, &info.info);
2065 }
2066
2067 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
2068                                             char *sfn_pl, int rec_index,
2069                                             bool adding)
2070 {
2071         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2072         struct mlxsw_sp_bridge_device *bridge_device;
2073         struct mlxsw_sp_bridge_port *bridge_port;
2074         struct mlxsw_sp_port *mlxsw_sp_port;
2075         enum switchdev_notifier_type type;
2076         char mac[ETH_ALEN];
2077         u8 local_port;
2078         u16 vid, fid;
2079         bool do_notification = true;
2080         int err;
2081
2082         mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
2083         mlxsw_sp_port = mlxsw_sp->ports[local_port];
2084         if (!mlxsw_sp_port) {
2085                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
2086                 goto just_remove;
2087         }
2088
2089         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
2090         if (!mlxsw_sp_port_vlan) {
2091                 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
2092                 goto just_remove;
2093         }
2094
2095         bridge_port = mlxsw_sp_port_vlan->bridge_port;
2096         if (!bridge_port) {
2097                 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
2098                 goto just_remove;
2099         }
2100
2101         bridge_device = bridge_port->bridge_device;
2102         vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
2103
2104 do_fdb_op:
2105         err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
2106                                       adding, true);
2107         if (err) {
2108                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
2109                 return;
2110         }
2111
2112         if (!do_notification)
2113                 return;
2114         type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
2115         mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
2116
2117         return;
2118
2119 just_remove:
2120         adding = false;
2121         do_notification = false;
2122         goto do_fdb_op;
2123 }
2124
2125 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
2126                                                 char *sfn_pl, int rec_index,
2127                                                 bool adding)
2128 {
2129         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2130         struct mlxsw_sp_bridge_device *bridge_device;
2131         struct mlxsw_sp_bridge_port *bridge_port;
2132         struct mlxsw_sp_port *mlxsw_sp_port;
2133         enum switchdev_notifier_type type;
2134         char mac[ETH_ALEN];
2135         u16 lag_vid = 0;
2136         u16 lag_id;
2137         u16 vid, fid;
2138         bool do_notification = true;
2139         int err;
2140
2141         mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
2142         mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
2143         if (!mlxsw_sp_port) {
2144                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
2145                 goto just_remove;
2146         }
2147
2148         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
2149         if (!mlxsw_sp_port_vlan) {
2150                 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
2151                 goto just_remove;
2152         }
2153
2154         bridge_port = mlxsw_sp_port_vlan->bridge_port;
2155         if (!bridge_port) {
2156                 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
2157                 goto just_remove;
2158         }
2159
2160         bridge_device = bridge_port->bridge_device;
2161         vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
2162         lag_vid = mlxsw_sp_port_vlan->vid;
2163
2164 do_fdb_op:
2165         err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
2166                                           adding, true);
2167         if (err) {
2168                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
2169                 return;
2170         }
2171
2172         if (!do_notification)
2173                 return;
2174         type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
2175         mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
2176
2177         return;
2178
2179 just_remove:
2180         adding = false;
2181         do_notification = false;
2182         goto do_fdb_op;
2183 }
2184
2185 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
2186                                             char *sfn_pl, int rec_index)
2187 {
2188         switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
2189         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
2190                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
2191                                                 rec_index, true);
2192                 break;
2193         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
2194                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
2195                                                 rec_index, false);
2196                 break;
2197         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
2198                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
2199                                                     rec_index, true);
2200                 break;
2201         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
2202                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
2203                                                     rec_index, false);
2204                 break;
2205         }
2206 }
2207
2208 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
2209 {
2210         struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
2211
2212         mlxsw_core_schedule_dw(&bridge->fdb_notify.dw,
2213                                msecs_to_jiffies(bridge->fdb_notify.interval));
2214 }
2215
2216 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
2217 {
2218         struct mlxsw_sp_bridge *bridge;
2219         struct mlxsw_sp *mlxsw_sp;
2220         char *sfn_pl;
2221         u8 num_rec;
2222         int i;
2223         int err;
2224
2225         sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
2226         if (!sfn_pl)
2227                 return;
2228
2229         bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work);
2230         mlxsw_sp = bridge->mlxsw_sp;
2231
2232         rtnl_lock();
2233         mlxsw_reg_sfn_pack(sfn_pl);
2234         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
2235         if (err) {
2236                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
2237                 goto out;
2238         }
2239         num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
2240         for (i = 0; i < num_rec; i++)
2241                 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
2242
2243 out:
2244         rtnl_unlock();
2245         kfree(sfn_pl);
2246         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
2247 }
2248
2249 struct mlxsw_sp_switchdev_event_work {
2250         struct work_struct work;
2251         struct switchdev_notifier_fdb_info fdb_info;
2252         struct net_device *dev;
2253         unsigned long event;
2254 };
2255
2256 static void mlxsw_sp_switchdev_event_work(struct work_struct *work)
2257 {
2258         struct mlxsw_sp_switchdev_event_work *switchdev_work =
2259                 container_of(work, struct mlxsw_sp_switchdev_event_work, work);
2260         struct net_device *dev = switchdev_work->dev;
2261         struct switchdev_notifier_fdb_info *fdb_info;
2262         struct mlxsw_sp_port *mlxsw_sp_port;
2263         int err;
2264
2265         rtnl_lock();
2266         mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
2267         if (!mlxsw_sp_port)
2268                 goto out;
2269
2270         switch (switchdev_work->event) {
2271         case SWITCHDEV_FDB_ADD_TO_DEVICE:
2272                 fdb_info = &switchdev_work->fdb_info;
2273                 if (!fdb_info->added_by_user)
2274                         break;
2275                 err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true);
2276                 if (err)
2277                         break;
2278                 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED,
2279                                             fdb_info->addr,
2280                                             fdb_info->vid, dev);
2281                 break;
2282         case SWITCHDEV_FDB_DEL_TO_DEVICE:
2283                 fdb_info = &switchdev_work->fdb_info;
2284                 if (!fdb_info->added_by_user)
2285                         break;
2286                 mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false);
2287                 break;
2288         case SWITCHDEV_FDB_ADD_TO_BRIDGE: /* fall through */
2289         case SWITCHDEV_FDB_DEL_TO_BRIDGE:
2290                 /* These events are only used to potentially update an existing
2291                  * SPAN mirror.
2292                  */
2293                 break;
2294         }
2295
2296         mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp);
2297
2298 out:
2299         rtnl_unlock();
2300         kfree(switchdev_work->fdb_info.addr);
2301         kfree(switchdev_work);
2302         dev_put(dev);
2303 }
2304
2305 /* Called under rcu_read_lock() */
2306 static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
2307                                     unsigned long event, void *ptr)
2308 {
2309         struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
2310         struct mlxsw_sp_switchdev_event_work *switchdev_work;
2311         struct switchdev_notifier_fdb_info *fdb_info = ptr;
2312
2313         if (!mlxsw_sp_port_dev_lower_find_rcu(dev))
2314                 return NOTIFY_DONE;
2315
2316         switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
2317         if (!switchdev_work)
2318                 return NOTIFY_BAD;
2319
2320         INIT_WORK(&switchdev_work->work, mlxsw_sp_switchdev_event_work);
2321         switchdev_work->dev = dev;
2322         switchdev_work->event = event;
2323
2324         switch (event) {
2325         case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */
2326         case SWITCHDEV_FDB_DEL_TO_DEVICE: /* fall through */
2327         case SWITCHDEV_FDB_ADD_TO_BRIDGE: /* fall through */
2328         case SWITCHDEV_FDB_DEL_TO_BRIDGE:
2329                 memcpy(&switchdev_work->fdb_info, ptr,
2330                        sizeof(switchdev_work->fdb_info));
2331                 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
2332                 if (!switchdev_work->fdb_info.addr)
2333                         goto err_addr_alloc;
2334                 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
2335                                 fdb_info->addr);
2336                 /* Take a reference on the device. This can be either
2337                  * upper device containig mlxsw_sp_port or just a
2338                  * mlxsw_sp_port
2339                  */
2340                 dev_hold(dev);
2341                 break;
2342         default:
2343                 kfree(switchdev_work);
2344                 return NOTIFY_DONE;
2345         }
2346
2347         mlxsw_core_schedule_work(&switchdev_work->work);
2348
2349         return NOTIFY_DONE;
2350
2351 err_addr_alloc:
2352         kfree(switchdev_work);
2353         return NOTIFY_BAD;
2354 }
2355
2356 static struct notifier_block mlxsw_sp_switchdev_notifier = {
2357         .notifier_call = mlxsw_sp_switchdev_event,
2358 };
2359
2360 u8
2361 mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port)
2362 {
2363         return bridge_port->stp_state;
2364 }
2365
2366 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
2367 {
2368         struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
2369         int err;
2370
2371         err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
2372         if (err) {
2373                 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
2374                 return err;
2375         }
2376
2377         err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
2378         if (err) {
2379                 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n");
2380                 return err;
2381         }
2382
2383         INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
2384         bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
2385         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
2386         return 0;
2387 }
2388
2389 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
2390 {
2391         cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw);
2392         unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
2393
2394 }
2395
2396 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
2397 {
2398         struct mlxsw_sp_bridge *bridge;
2399
2400         bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL);
2401         if (!bridge)
2402                 return -ENOMEM;
2403         mlxsw_sp->bridge = bridge;
2404         bridge->mlxsw_sp = mlxsw_sp;
2405
2406         INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list);
2407
2408         bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops;
2409         bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops;
2410
2411         return mlxsw_sp_fdb_init(mlxsw_sp);
2412 }
2413
2414 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
2415 {
2416         mlxsw_sp_fdb_fini(mlxsw_sp);
2417         WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list));
2418         kfree(mlxsw_sp->bridge);
2419 }
2420
2421 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
2422 {
2423         mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
2424 }
2425
2426 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
2427 {
2428 }