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         int err;
1207
1208         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1209         if (!sfd_pl)
1210                 return -ENOMEM;
1211
1212         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1213         mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1214                               mac, fid, action, local_port);
1215         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1216         kfree(sfd_pl);
1217
1218         return err;
1219 }
1220
1221 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1222                                    const char *mac, u16 fid, bool adding,
1223                                    bool dynamic)
1224 {
1225         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
1226                                          MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
1227 }
1228
1229 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
1230                         bool adding)
1231 {
1232         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
1233                                          MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
1234                                          false);
1235 }
1236
1237 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
1238                                        const char *mac, u16 fid, u16 lag_vid,
1239                                        bool adding, bool dynamic)
1240 {
1241         char *sfd_pl;
1242         int err;
1243
1244         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1245         if (!sfd_pl)
1246                 return -ENOMEM;
1247
1248         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1249         mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1250                                   mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
1251                                   lag_vid, lag_id);
1252         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1253         kfree(sfd_pl);
1254
1255         return err;
1256 }
1257
1258 static int
1259 mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port,
1260                       struct switchdev_notifier_fdb_info *fdb_info, bool adding)
1261 {
1262         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1263         struct net_device *orig_dev = fdb_info->info.dev;
1264         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1265         struct mlxsw_sp_bridge_device *bridge_device;
1266         struct mlxsw_sp_bridge_port *bridge_port;
1267         u16 fid_index, vid;
1268
1269         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1270         if (!bridge_port)
1271                 return -EINVAL;
1272
1273         bridge_device = bridge_port->bridge_device;
1274         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1275                                                                bridge_device,
1276                                                                fdb_info->vid);
1277         if (!mlxsw_sp_port_vlan)
1278                 return 0;
1279
1280         fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1281         vid = mlxsw_sp_port_vlan->vid;
1282
1283         if (!bridge_port->lagged)
1284                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp,
1285                                                bridge_port->system_port,
1286                                                fdb_info->addr, fid_index,
1287                                                adding, false);
1288         else
1289                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp,
1290                                                    bridge_port->lag_id,
1291                                                    fdb_info->addr, fid_index,
1292                                                    vid, adding, false);
1293 }
1294
1295 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
1296                                 u16 fid, u16 mid_idx, bool adding)
1297 {
1298         char *sfd_pl;
1299         int err;
1300
1301         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1302         if (!sfd_pl)
1303                 return -ENOMEM;
1304
1305         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1306         mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
1307                               MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx);
1308         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1309         kfree(sfd_pl);
1310         return err;
1311 }
1312
1313 static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx,
1314                                          long *ports_bitmap,
1315                                          bool set_router_port)
1316 {
1317         char *smid_pl;
1318         int err, i;
1319
1320         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1321         if (!smid_pl)
1322                 return -ENOMEM;
1323
1324         mlxsw_reg_smid_pack(smid_pl, mid_idx, 0, false);
1325         for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) {
1326                 if (mlxsw_sp->ports[i])
1327                         mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
1328         }
1329
1330         mlxsw_reg_smid_port_mask_set(smid_pl,
1331                                      mlxsw_sp_router_port(mlxsw_sp), 1);
1332
1333         for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core))
1334                 mlxsw_reg_smid_port_set(smid_pl, i, 1);
1335
1336         mlxsw_reg_smid_port_set(smid_pl, mlxsw_sp_router_port(mlxsw_sp),
1337                                 set_router_port);
1338
1339         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1340         kfree(smid_pl);
1341         return err;
1342 }
1343
1344 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port,
1345                                   u16 mid_idx, bool add)
1346 {
1347         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1348         char *smid_pl;
1349         int err;
1350
1351         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1352         if (!smid_pl)
1353                 return -ENOMEM;
1354
1355         mlxsw_reg_smid_pack(smid_pl, mid_idx, mlxsw_sp_port->local_port, add);
1356         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1357         kfree(smid_pl);
1358         return err;
1359 }
1360
1361 static struct
1362 mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp_bridge_device *bridge_device,
1363                                 const unsigned char *addr,
1364                                 u16 fid)
1365 {
1366         struct mlxsw_sp_mid *mid;
1367
1368         list_for_each_entry(mid, &bridge_device->mids_list, list) {
1369                 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid)
1370                         return mid;
1371         }
1372         return NULL;
1373 }
1374
1375 static void
1376 mlxsw_sp_bridge_port_get_ports_bitmap(struct mlxsw_sp *mlxsw_sp,
1377                                       struct mlxsw_sp_bridge_port *bridge_port,
1378                                       unsigned long *ports_bitmap)
1379 {
1380         struct mlxsw_sp_port *mlxsw_sp_port;
1381         u64 max_lag_members, i;
1382         int lag_id;
1383
1384         if (!bridge_port->lagged) {
1385                 set_bit(bridge_port->system_port, ports_bitmap);
1386         } else {
1387                 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1388                                                      MAX_LAG_MEMBERS);
1389                 lag_id = bridge_port->lag_id;
1390                 for (i = 0; i < max_lag_members; i++) {
1391                         mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp,
1392                                                                  lag_id, i);
1393                         if (mlxsw_sp_port)
1394                                 set_bit(mlxsw_sp_port->local_port,
1395                                         ports_bitmap);
1396                 }
1397         }
1398 }
1399
1400 static void
1401 mlxsw_sp_mc_get_mrouters_bitmap(unsigned long *flood_bitmap,
1402                                 struct mlxsw_sp_bridge_device *bridge_device,
1403                                 struct mlxsw_sp *mlxsw_sp)
1404 {
1405         struct mlxsw_sp_bridge_port *bridge_port;
1406
1407         list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
1408                 if (bridge_port->mrouter) {
1409                         mlxsw_sp_bridge_port_get_ports_bitmap(mlxsw_sp,
1410                                                               bridge_port,
1411                                                               flood_bitmap);
1412                 }
1413         }
1414 }
1415
1416 static bool
1417 mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp,
1418                             struct mlxsw_sp_mid *mid,
1419                             struct mlxsw_sp_bridge_device *bridge_device)
1420 {
1421         long *flood_bitmap;
1422         int num_of_ports;
1423         int alloc_size;
1424         u16 mid_idx;
1425         int err;
1426
1427         mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap,
1428                                       MLXSW_SP_MID_MAX);
1429         if (mid_idx == MLXSW_SP_MID_MAX)
1430                 return false;
1431
1432         num_of_ports = mlxsw_core_max_ports(mlxsw_sp->core);
1433         alloc_size = sizeof(long) * BITS_TO_LONGS(num_of_ports);
1434         flood_bitmap = kzalloc(alloc_size, GFP_KERNEL);
1435         if (!flood_bitmap)
1436                 return false;
1437
1438         bitmap_copy(flood_bitmap,  mid->ports_in_mid, num_of_ports);
1439         mlxsw_sp_mc_get_mrouters_bitmap(flood_bitmap, bridge_device, mlxsw_sp);
1440
1441         mid->mid = mid_idx;
1442         err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx, flood_bitmap,
1443                                             bridge_device->mrouter);
1444         kfree(flood_bitmap);
1445         if (err)
1446                 return false;
1447
1448         err = mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid_idx,
1449                                    true);
1450         if (err)
1451                 return false;
1452
1453         set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap);
1454         mid->in_hw = true;
1455         return true;
1456 }
1457
1458 static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp,
1459                                         struct mlxsw_sp_mid *mid)
1460 {
1461         if (!mid->in_hw)
1462                 return 0;
1463
1464         clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap);
1465         mid->in_hw = false;
1466         return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid,
1467                                     false);
1468 }
1469
1470 static struct
1471 mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
1472                                   struct mlxsw_sp_bridge_device *bridge_device,
1473                                   const unsigned char *addr,
1474                                   u16 fid)
1475 {
1476         struct mlxsw_sp_mid *mid;
1477         size_t alloc_size;
1478
1479         mid = kzalloc(sizeof(*mid), GFP_KERNEL);
1480         if (!mid)
1481                 return NULL;
1482
1483         alloc_size = sizeof(unsigned long) *
1484                      BITS_TO_LONGS(mlxsw_core_max_ports(mlxsw_sp->core));
1485
1486         mid->ports_in_mid = kzalloc(alloc_size, GFP_KERNEL);
1487         if (!mid->ports_in_mid)
1488                 goto err_ports_in_mid_alloc;
1489
1490         ether_addr_copy(mid->addr, addr);
1491         mid->fid = fid;
1492         mid->in_hw = false;
1493
1494         if (!bridge_device->multicast_enabled)
1495                 goto out;
1496
1497         if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device))
1498                 goto err_write_mdb_entry;
1499
1500 out:
1501         list_add_tail(&mid->list, &bridge_device->mids_list);
1502         return mid;
1503
1504 err_write_mdb_entry:
1505         kfree(mid->ports_in_mid);
1506 err_ports_in_mid_alloc:
1507         kfree(mid);
1508         return NULL;
1509 }
1510
1511 static int mlxsw_sp_port_remove_from_mid(struct mlxsw_sp_port *mlxsw_sp_port,
1512                                          struct mlxsw_sp_mid *mid)
1513 {
1514         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1515         int err = 0;
1516
1517         clear_bit(mlxsw_sp_port->local_port, mid->ports_in_mid);
1518         if (bitmap_empty(mid->ports_in_mid,
1519                          mlxsw_core_max_ports(mlxsw_sp->core))) {
1520                 err = mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
1521                 list_del(&mid->list);
1522                 kfree(mid->ports_in_mid);
1523                 kfree(mid);
1524         }
1525         return err;
1526 }
1527
1528 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
1529                                  const struct switchdev_obj_port_mdb *mdb,
1530                                  struct switchdev_trans *trans)
1531 {
1532         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1533         struct net_device *orig_dev = mdb->obj.orig_dev;
1534         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1535         struct net_device *dev = mlxsw_sp_port->dev;
1536         struct mlxsw_sp_bridge_device *bridge_device;
1537         struct mlxsw_sp_bridge_port *bridge_port;
1538         struct mlxsw_sp_mid *mid;
1539         u16 fid_index;
1540         int err = 0;
1541
1542         if (switchdev_trans_ph_prepare(trans))
1543                 return 0;
1544
1545         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1546         if (!bridge_port)
1547                 return 0;
1548
1549         bridge_device = bridge_port->bridge_device;
1550         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1551                                                                bridge_device,
1552                                                                mdb->vid);
1553         if (!mlxsw_sp_port_vlan)
1554                 return 0;
1555
1556         fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1557
1558         mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index);
1559         if (!mid) {
1560                 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, bridge_device, mdb->addr,
1561                                           fid_index);
1562                 if (!mid) {
1563                         netdev_err(dev, "Unable to allocate MC group\n");
1564                         return -ENOMEM;
1565                 }
1566         }
1567         set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid);
1568
1569         if (!bridge_device->multicast_enabled)
1570                 return 0;
1571
1572         if (bridge_port->mrouter)
1573                 return 0;
1574
1575         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true);
1576         if (err) {
1577                 netdev_err(dev, "Unable to set SMID\n");
1578                 goto err_out;
1579         }
1580
1581         return 0;
1582
1583 err_out:
1584         mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
1585         return err;
1586 }
1587
1588 static void
1589 mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
1590                                    struct mlxsw_sp_bridge_device
1591                                    *bridge_device)
1592 {
1593         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1594         struct mlxsw_sp_mid *mid;
1595         bool mc_enabled;
1596
1597         mc_enabled = bridge_device->multicast_enabled;
1598
1599         list_for_each_entry(mid, &bridge_device->mids_list, list) {
1600                 if (mc_enabled)
1601                         mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid,
1602                                                     bridge_device);
1603                 else
1604                         mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
1605         }
1606 }
1607
1608 static void
1609 mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port,
1610                                  struct mlxsw_sp_bridge_port *bridge_port,
1611                                  bool add)
1612 {
1613         struct mlxsw_sp_bridge_device *bridge_device;
1614         struct mlxsw_sp_mid *mid;
1615
1616         bridge_device = bridge_port->bridge_device;
1617
1618         list_for_each_entry(mid, &bridge_device->mids_list, list) {
1619                 if (!test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid))
1620                         mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, add);
1621         }
1622 }
1623
1624 static int mlxsw_sp_port_obj_add(struct net_device *dev,
1625                                  const struct switchdev_obj *obj,
1626                                  struct switchdev_trans *trans)
1627 {
1628         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1629         int err = 0;
1630
1631         switch (obj->id) {
1632         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1633                 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
1634                                               SWITCHDEV_OBJ_PORT_VLAN(obj),
1635                                               trans);
1636                 break;
1637         case SWITCHDEV_OBJ_ID_PORT_MDB:
1638                 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
1639                                             SWITCHDEV_OBJ_PORT_MDB(obj),
1640                                             trans);
1641                 break;
1642         default:
1643                 err = -EOPNOTSUPP;
1644                 break;
1645         }
1646
1647         return err;
1648 }
1649
1650 static void
1651 mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port,
1652                               struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
1653 {
1654         u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : vid;
1655         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1656
1657         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1658         if (WARN_ON(!mlxsw_sp_port_vlan))
1659                 return;
1660
1661         mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1662         mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
1663         mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1664         mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1665 }
1666
1667 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1668                                    const struct switchdev_obj_port_vlan *vlan)
1669 {
1670         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1671         struct net_device *orig_dev = vlan->obj.orig_dev;
1672         struct mlxsw_sp_bridge_port *bridge_port;
1673         u16 vid;
1674
1675         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1676         if (WARN_ON(!bridge_port))
1677                 return -EINVAL;
1678
1679         if (!bridge_port->bridge_device->vlan_enabled)
1680                 return 0;
1681
1682         for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++)
1683                 mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vid);
1684
1685         return 0;
1686 }
1687
1688 static int
1689 __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1690                         struct mlxsw_sp_bridge_port *bridge_port,
1691                         struct mlxsw_sp_mid *mid)
1692 {
1693         struct net_device *dev = mlxsw_sp_port->dev;
1694         int err;
1695
1696         if (bridge_port->bridge_device->multicast_enabled) {
1697                 if (bridge_port->bridge_device->multicast_enabled) {
1698                         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid,
1699                                                      false);
1700                         if (err)
1701                                 netdev_err(dev, "Unable to remove port from SMID\n");
1702                 }
1703         }
1704
1705         err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
1706         if (err)
1707                 netdev_err(dev, "Unable to remove MC SFD\n");
1708
1709         return err;
1710 }
1711
1712 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1713                                  const struct switchdev_obj_port_mdb *mdb)
1714 {
1715         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1716         struct net_device *orig_dev = mdb->obj.orig_dev;
1717         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1718         struct mlxsw_sp_bridge_device *bridge_device;
1719         struct net_device *dev = mlxsw_sp_port->dev;
1720         struct mlxsw_sp_bridge_port *bridge_port;
1721         struct mlxsw_sp_mid *mid;
1722         u16 fid_index;
1723
1724         bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1725         if (!bridge_port)
1726                 return 0;
1727
1728         bridge_device = bridge_port->bridge_device;
1729         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1730                                                                bridge_device,
1731                                                                mdb->vid);
1732         if (!mlxsw_sp_port_vlan)
1733                 return 0;
1734
1735         fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1736
1737         mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index);
1738         if (!mid) {
1739                 netdev_err(dev, "Unable to remove port from MC DB\n");
1740                 return -EINVAL;
1741         }
1742
1743         return __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid);
1744 }
1745
1746 static void
1747 mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port,
1748                                struct mlxsw_sp_bridge_port *bridge_port)
1749 {
1750         struct mlxsw_sp_bridge_device *bridge_device;
1751         struct mlxsw_sp_mid *mid, *tmp;
1752
1753         bridge_device = bridge_port->bridge_device;
1754
1755         list_for_each_entry_safe(mid, tmp, &bridge_device->mids_list, list) {
1756                 if (test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) {
1757                         __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port,
1758                                                 mid);
1759                 } else if (bridge_device->multicast_enabled &&
1760                            bridge_port->mrouter) {
1761                         mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false);
1762                 }
1763         }
1764 }
1765
1766 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1767                                  const struct switchdev_obj *obj)
1768 {
1769         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1770         int err = 0;
1771
1772         switch (obj->id) {
1773         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1774                 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1775                                               SWITCHDEV_OBJ_PORT_VLAN(obj));
1776                 break;
1777         case SWITCHDEV_OBJ_ID_PORT_MDB:
1778                 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1779                                             SWITCHDEV_OBJ_PORT_MDB(obj));
1780                 break;
1781         default:
1782                 err = -EOPNOTSUPP;
1783                 break;
1784         }
1785
1786         return err;
1787 }
1788
1789 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1790                                                    u16 lag_id)
1791 {
1792         struct mlxsw_sp_port *mlxsw_sp_port;
1793         u64 max_lag_members;
1794         int i;
1795
1796         max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1797                                              MAX_LAG_MEMBERS);
1798         for (i = 0; i < max_lag_members; i++) {
1799                 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1800                 if (mlxsw_sp_port)
1801                         return mlxsw_sp_port;
1802         }
1803         return NULL;
1804 }
1805
1806 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1807         .switchdev_port_attr_get        = mlxsw_sp_port_attr_get,
1808         .switchdev_port_attr_set        = mlxsw_sp_port_attr_set,
1809         .switchdev_port_obj_add         = mlxsw_sp_port_obj_add,
1810         .switchdev_port_obj_del         = mlxsw_sp_port_obj_del,
1811 };
1812
1813 static int
1814 mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1815                                 struct mlxsw_sp_bridge_port *bridge_port,
1816                                 struct mlxsw_sp_port *mlxsw_sp_port,
1817                                 struct netlink_ext_ack *extack)
1818 {
1819         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1820
1821         if (is_vlan_dev(bridge_port->dev)) {
1822                 NL_SET_ERR_MSG(extack, "spectrum: Can not enslave a VLAN device to a VLAN-aware bridge");
1823                 return -EINVAL;
1824         }
1825
1826         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1);
1827         if (WARN_ON(!mlxsw_sp_port_vlan))
1828                 return -EINVAL;
1829
1830         /* Let VLAN-aware bridge take care of its own VLANs */
1831         mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1832
1833         return 0;
1834 }
1835
1836 static void
1837 mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1838                                  struct mlxsw_sp_bridge_port *bridge_port,
1839                                  struct mlxsw_sp_port *mlxsw_sp_port)
1840 {
1841         mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
1842         /* Make sure untagged frames are allowed to ingress */
1843         mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
1844 }
1845
1846 static struct mlxsw_sp_fid *
1847 mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1848                               u16 vid)
1849 {
1850         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1851
1852         return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid);
1853 }
1854
1855 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = {
1856         .port_join      = mlxsw_sp_bridge_8021q_port_join,
1857         .port_leave     = mlxsw_sp_bridge_8021q_port_leave,
1858         .fid_get        = mlxsw_sp_bridge_8021q_fid_get,
1859 };
1860
1861 static bool
1862 mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port,
1863                            const struct net_device *br_dev)
1864 {
1865         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1866
1867         list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
1868                             list) {
1869                 if (mlxsw_sp_port_vlan->bridge_port &&
1870                     mlxsw_sp_port_vlan->bridge_port->bridge_device->dev ==
1871                     br_dev)
1872                         return true;
1873         }
1874
1875         return false;
1876 }
1877
1878 static int
1879 mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1880                                 struct mlxsw_sp_bridge_port *bridge_port,
1881                                 struct mlxsw_sp_port *mlxsw_sp_port,
1882                                 struct netlink_ext_ack *extack)
1883 {
1884         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1885         u16 vid;
1886
1887         if (!is_vlan_dev(bridge_port->dev)) {
1888                 NL_SET_ERR_MSG(extack, "spectrum: Only VLAN devices can be enslaved to a VLAN-unaware bridge");
1889                 return -EINVAL;
1890         }
1891         vid = vlan_dev_vlan_id(bridge_port->dev);
1892
1893         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1894         if (WARN_ON(!mlxsw_sp_port_vlan))
1895                 return -EINVAL;
1896
1897         if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) {
1898                 NL_SET_ERR_MSG(extack, "spectrum: Can not bridge VLAN uppers of the same port");
1899                 return -EINVAL;
1900         }
1901
1902         /* Port is no longer usable as a router interface */
1903         if (mlxsw_sp_port_vlan->fid)
1904                 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
1905
1906         return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
1907 }
1908
1909 static void
1910 mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1911                                  struct mlxsw_sp_bridge_port *bridge_port,
1912                                  struct mlxsw_sp_port *mlxsw_sp_port)
1913 {
1914         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1915         u16 vid = vlan_dev_vlan_id(bridge_port->dev);
1916
1917         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1918         if (WARN_ON(!mlxsw_sp_port_vlan))
1919                 return;
1920
1921         mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1922 }
1923
1924 static struct mlxsw_sp_fid *
1925 mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1926                               u16 vid)
1927 {
1928         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1929
1930         return mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex);
1931 }
1932
1933 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = {
1934         .port_join      = mlxsw_sp_bridge_8021d_port_join,
1935         .port_leave     = mlxsw_sp_bridge_8021d_port_leave,
1936         .fid_get        = mlxsw_sp_bridge_8021d_fid_get,
1937 };
1938
1939 int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
1940                               struct net_device *brport_dev,
1941                               struct net_device *br_dev,
1942                               struct netlink_ext_ack *extack)
1943 {
1944         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1945         struct mlxsw_sp_bridge_device *bridge_device;
1946         struct mlxsw_sp_bridge_port *bridge_port;
1947         int err;
1948
1949         bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev);
1950         if (IS_ERR(bridge_port))
1951                 return PTR_ERR(bridge_port);
1952         bridge_device = bridge_port->bridge_device;
1953
1954         err = bridge_device->ops->port_join(bridge_device, bridge_port,
1955                                             mlxsw_sp_port, extack);
1956         if (err)
1957                 goto err_port_join;
1958
1959         return 0;
1960
1961 err_port_join:
1962         mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
1963         return err;
1964 }
1965
1966 void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
1967                                 struct net_device *brport_dev,
1968                                 struct net_device *br_dev)
1969 {
1970         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1971         struct mlxsw_sp_bridge_device *bridge_device;
1972         struct mlxsw_sp_bridge_port *bridge_port;
1973
1974         bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
1975         if (!bridge_device)
1976                 return;
1977         bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
1978         if (!bridge_port)
1979                 return;
1980
1981         bridge_device->ops->port_leave(bridge_device, bridge_port,
1982                                        mlxsw_sp_port);
1983         mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
1984 }
1985
1986 static void
1987 mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type,
1988                             const char *mac, u16 vid,
1989                             struct net_device *dev)
1990 {
1991         struct switchdev_notifier_fdb_info info;
1992
1993         info.addr = mac;
1994         info.vid = vid;
1995         call_switchdev_notifiers(type, dev, &info.info);
1996 }
1997
1998 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1999                                             char *sfn_pl, int rec_index,
2000                                             bool adding)
2001 {
2002         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2003         struct mlxsw_sp_bridge_device *bridge_device;
2004         struct mlxsw_sp_bridge_port *bridge_port;
2005         struct mlxsw_sp_port *mlxsw_sp_port;
2006         enum switchdev_notifier_type type;
2007         char mac[ETH_ALEN];
2008         u8 local_port;
2009         u16 vid, fid;
2010         bool do_notification = true;
2011         int err;
2012
2013         mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
2014         mlxsw_sp_port = mlxsw_sp->ports[local_port];
2015         if (!mlxsw_sp_port) {
2016                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
2017                 goto just_remove;
2018         }
2019
2020         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
2021         if (!mlxsw_sp_port_vlan) {
2022                 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
2023                 goto just_remove;
2024         }
2025
2026         bridge_port = mlxsw_sp_port_vlan->bridge_port;
2027         if (!bridge_port) {
2028                 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
2029                 goto just_remove;
2030         }
2031
2032         bridge_device = bridge_port->bridge_device;
2033         vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
2034
2035 do_fdb_op:
2036         err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
2037                                       adding, true);
2038         if (err) {
2039                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
2040                 return;
2041         }
2042
2043         if (!do_notification)
2044                 return;
2045         type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
2046         mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
2047
2048         return;
2049
2050 just_remove:
2051         adding = false;
2052         do_notification = false;
2053         goto do_fdb_op;
2054 }
2055
2056 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
2057                                                 char *sfn_pl, int rec_index,
2058                                                 bool adding)
2059 {
2060         struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2061         struct mlxsw_sp_bridge_device *bridge_device;
2062         struct mlxsw_sp_bridge_port *bridge_port;
2063         struct mlxsw_sp_port *mlxsw_sp_port;
2064         enum switchdev_notifier_type type;
2065         char mac[ETH_ALEN];
2066         u16 lag_vid = 0;
2067         u16 lag_id;
2068         u16 vid, fid;
2069         bool do_notification = true;
2070         int err;
2071
2072         mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
2073         mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
2074         if (!mlxsw_sp_port) {
2075                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
2076                 goto just_remove;
2077         }
2078
2079         mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
2080         if (!mlxsw_sp_port_vlan) {
2081                 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
2082                 goto just_remove;
2083         }
2084
2085         bridge_port = mlxsw_sp_port_vlan->bridge_port;
2086         if (!bridge_port) {
2087                 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
2088                 goto just_remove;
2089         }
2090
2091         bridge_device = bridge_port->bridge_device;
2092         vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
2093         lag_vid = mlxsw_sp_port_vlan->vid;
2094
2095 do_fdb_op:
2096         err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
2097                                           adding, true);
2098         if (err) {
2099                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
2100                 return;
2101         }
2102
2103         if (!do_notification)
2104                 return;
2105         type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
2106         mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
2107
2108         return;
2109
2110 just_remove:
2111         adding = false;
2112         do_notification = false;
2113         goto do_fdb_op;
2114 }
2115
2116 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
2117                                             char *sfn_pl, int rec_index)
2118 {
2119         switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
2120         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
2121                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
2122                                                 rec_index, true);
2123                 break;
2124         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
2125                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
2126                                                 rec_index, false);
2127                 break;
2128         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
2129                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
2130                                                     rec_index, true);
2131                 break;
2132         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
2133                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
2134                                                     rec_index, false);
2135                 break;
2136         }
2137 }
2138
2139 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
2140 {
2141         struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
2142
2143         mlxsw_core_schedule_dw(&bridge->fdb_notify.dw,
2144                                msecs_to_jiffies(bridge->fdb_notify.interval));
2145 }
2146
2147 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
2148 {
2149         struct mlxsw_sp_bridge *bridge;
2150         struct mlxsw_sp *mlxsw_sp;
2151         char *sfn_pl;
2152         u8 num_rec;
2153         int i;
2154         int err;
2155
2156         sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
2157         if (!sfn_pl)
2158                 return;
2159
2160         bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work);
2161         mlxsw_sp = bridge->mlxsw_sp;
2162
2163         rtnl_lock();
2164         mlxsw_reg_sfn_pack(sfn_pl);
2165         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
2166         if (err) {
2167                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
2168                 goto out;
2169         }
2170         num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
2171         for (i = 0; i < num_rec; i++)
2172                 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
2173
2174 out:
2175         rtnl_unlock();
2176         kfree(sfn_pl);
2177         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
2178 }
2179
2180 struct mlxsw_sp_switchdev_event_work {
2181         struct work_struct work;
2182         struct switchdev_notifier_fdb_info fdb_info;
2183         struct net_device *dev;
2184         unsigned long event;
2185 };
2186
2187 static void mlxsw_sp_switchdev_event_work(struct work_struct *work)
2188 {
2189         struct mlxsw_sp_switchdev_event_work *switchdev_work =
2190                 container_of(work, struct mlxsw_sp_switchdev_event_work, work);
2191         struct net_device *dev = switchdev_work->dev;
2192         struct switchdev_notifier_fdb_info *fdb_info;
2193         struct mlxsw_sp_port *mlxsw_sp_port;
2194         int err;
2195
2196         rtnl_lock();
2197         mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
2198         if (!mlxsw_sp_port)
2199                 goto out;
2200
2201         switch (switchdev_work->event) {
2202         case SWITCHDEV_FDB_ADD_TO_DEVICE:
2203                 fdb_info = &switchdev_work->fdb_info;
2204                 err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true);
2205                 if (err)
2206                         break;
2207                 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED,
2208                                             fdb_info->addr,
2209                                             fdb_info->vid, dev);
2210                 break;
2211         case SWITCHDEV_FDB_DEL_TO_DEVICE:
2212                 fdb_info = &switchdev_work->fdb_info;
2213                 mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false);
2214                 break;
2215         }
2216
2217 out:
2218         rtnl_unlock();
2219         kfree(switchdev_work->fdb_info.addr);
2220         kfree(switchdev_work);
2221         dev_put(dev);
2222 }
2223
2224 /* Called under rcu_read_lock() */
2225 static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
2226                                     unsigned long event, void *ptr)
2227 {
2228         struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
2229         struct mlxsw_sp_switchdev_event_work *switchdev_work;
2230         struct switchdev_notifier_fdb_info *fdb_info = ptr;
2231
2232         if (!mlxsw_sp_port_dev_lower_find_rcu(dev))
2233                 return NOTIFY_DONE;
2234
2235         switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
2236         if (!switchdev_work)
2237                 return NOTIFY_BAD;
2238
2239         INIT_WORK(&switchdev_work->work, mlxsw_sp_switchdev_event_work);
2240         switchdev_work->dev = dev;
2241         switchdev_work->event = event;
2242
2243         switch (event) {
2244         case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */
2245         case SWITCHDEV_FDB_DEL_TO_DEVICE:
2246                 memcpy(&switchdev_work->fdb_info, ptr,
2247                        sizeof(switchdev_work->fdb_info));
2248                 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
2249                 if (!switchdev_work->fdb_info.addr)
2250                         goto err_addr_alloc;
2251                 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
2252                                 fdb_info->addr);
2253                 /* Take a reference on the device. This can be either
2254                  * upper device containig mlxsw_sp_port or just a
2255                  * mlxsw_sp_port
2256                  */
2257                 dev_hold(dev);
2258                 break;
2259         default:
2260                 kfree(switchdev_work);
2261                 return NOTIFY_DONE;
2262         }
2263
2264         mlxsw_core_schedule_work(&switchdev_work->work);
2265
2266         return NOTIFY_DONE;
2267
2268 err_addr_alloc:
2269         kfree(switchdev_work);
2270         return NOTIFY_BAD;
2271 }
2272
2273 static struct notifier_block mlxsw_sp_switchdev_notifier = {
2274         .notifier_call = mlxsw_sp_switchdev_event,
2275 };
2276
2277 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
2278 {
2279         struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
2280         int err;
2281
2282         err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
2283         if (err) {
2284                 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
2285                 return err;
2286         }
2287
2288         err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
2289         if (err) {
2290                 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n");
2291                 return err;
2292         }
2293
2294         INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
2295         bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
2296         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
2297         return 0;
2298 }
2299
2300 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
2301 {
2302         cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw);
2303         unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
2304
2305 }
2306
2307 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
2308 {
2309         struct mlxsw_sp_bridge *bridge;
2310
2311         bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL);
2312         if (!bridge)
2313                 return -ENOMEM;
2314         mlxsw_sp->bridge = bridge;
2315         bridge->mlxsw_sp = mlxsw_sp;
2316
2317         INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list);
2318
2319         bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops;
2320         bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops;
2321
2322         return mlxsw_sp_fdb_init(mlxsw_sp);
2323 }
2324
2325 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
2326 {
2327         mlxsw_sp_fdb_fini(mlxsw_sp);
2328         WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list));
2329         kfree(mlxsw_sp->bridge);
2330 }
2331
2332 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
2333 {
2334         mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
2335 }
2336
2337 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
2338 {
2339 }