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