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 <net/switchdev.h>
  50
  51 #include "spectrum.h"
  52 #include "core.h"
  53 #include "reg.h"
  54
  55 static u16 mlxsw_sp_port_vid_to_fid_get(struct mlxsw_sp_port *mlxsw_sp_port,
  56                                         u16 vid)
  57 {
  58         struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
  59         u16 fid = vid;
  60
  61         fid = f ? f->fid : fid;
  62
  63         if (!fid)
  64                 fid = mlxsw_sp_port->pvid;
  65
  66         return fid;
  67 }
  68
  69 static struct mlxsw_sp_port *
  70 mlxsw_sp_port_orig_get(struct net_device *dev,
  71                        struct mlxsw_sp_port *mlxsw_sp_port)
  72 {
  73         struct mlxsw_sp_port *mlxsw_sp_vport;
  74         struct mlxsw_sp_fid *fid;
  75         u16 vid;
  76
  77         if (netif_is_bridge_master(dev)) {
  78                 fid = mlxsw_sp_vfid_find(mlxsw_sp_port->mlxsw_sp,
  79                                          dev);
  80                 if (fid) {
  81                         mlxsw_sp_vport =
  82                                 mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
  83                                                                 fid->fid);
  84                         WARN_ON(!mlxsw_sp_vport);
  85                         return mlxsw_sp_vport;
  86                 }
  87         }
  88
  89         if (!is_vlan_dev(dev))
  90                 return mlxsw_sp_port;
  91
  92         vid = vlan_dev_vlan_id(dev);
  93         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
  94         WARN_ON(!mlxsw_sp_vport);
  95
  96         return mlxsw_sp_vport;
  97 }
  98
  99 static int mlxsw_sp_port_attr_get(struct net_device *dev,
 100                                   struct switchdev_attr *attr)
 101 {
 102         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 103         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 104
 105         mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
 106         if (!mlxsw_sp_port)
 107                 return -EINVAL;
 108
 109         switch (attr->id) {
 110         case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
 111                 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
 112                 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
 113                        attr->u.ppid.id_len);
 114                 break;
 115         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
 116                 attr->u.brport_flags =
 117                         (mlxsw_sp_port->learning ? BR_LEARNING : 0) |
 118                         (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) |
 119                         (mlxsw_sp_port->uc_flood ? BR_FLOOD : 0);
 120                 break;
 121         default:
 122                 return -EOPNOTSUPP;
 123         }
 124
 125         return 0;
 126 }
 127
 128 static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
 129                                        u8 state)
 130 {
 131         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 132         enum mlxsw_reg_spms_state spms_state;
 133         char *spms_pl;
 134         u16 vid;
 135         int err;
 136
 137         switch (state) {
 138         case BR_STATE_FORWARDING:
 139                 spms_state = MLXSW_REG_SPMS_STATE_FORWARDING;
 140                 break;
 141         case BR_STATE_LEARNING:
 142                 spms_state = MLXSW_REG_SPMS_STATE_LEARNING;
 143                 break;
 144         case BR_STATE_LISTENING: /* fall-through */
 145         case BR_STATE_DISABLED: /* fall-through */
 146         case BR_STATE_BLOCKING:
 147                 spms_state = MLXSW_REG_SPMS_STATE_DISCARDING;
 148                 break;
 149         default:
 150                 BUG();
 151         }
 152
 153         spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
 154         if (!spms_pl)
 155                 return -ENOMEM;
 156         mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
 157
 158         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 159                 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 160                 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
 161         } else {
 162                 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
 163                         mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
 164         }
 165
 166         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
 167         kfree(spms_pl);
 168         return err;
 169 }
 170
 171 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
 172                                             struct switchdev_trans *trans,
 173                                             u8 state)
 174 {
 175         if (switchdev_trans_ph_prepare(trans))
 176                 return 0;
 177
 178         mlxsw_sp_port->stp_state = state;
 179         return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state);
 180 }
 181
 182 static int __mlxsw_sp_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port,
 183                                            u16 idx_begin, u16 idx_end,
 184                                            enum mlxsw_sp_flood_table table,
 185                                            bool set)
 186 {
 187         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 188         u16 local_port = mlxsw_sp_port->local_port;
 189         enum mlxsw_flood_table_type table_type;
 190         u16 range = idx_end - idx_begin + 1;
 191         char *sftr_pl;
 192         int err;
 193
 194         if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
 195                 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
 196         else
 197                 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
 198
 199         sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
 200         if (!sftr_pl)
 201                 return -ENOMEM;
 202
 203         mlxsw_reg_sftr_pack(sftr_pl, table, idx_begin,
 204                             table_type, range, local_port, set);
 205         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
 206
 207         kfree(sftr_pl);
 208         return err;
 209 }
 210
 211 static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
 212                                      u16 idx_begin, u16 idx_end, bool uc_set,
 213                                      bool bc_set, bool mc_set)
 214 {
 215         int err;
 216
 217         err = __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, idx_begin, idx_end,
 218                                               MLXSW_SP_FLOOD_TABLE_UC, uc_set);
 219         if (err)
 220                 return err;
 221
 222         err = __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, idx_begin, idx_end,
 223                                               MLXSW_SP_FLOOD_TABLE_BC, bc_set);
 224         if (err)
 225                 goto err_flood_bm_set;
 226
 227         err = __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, idx_begin, idx_end,
 228                                               MLXSW_SP_FLOOD_TABLE_MC, mc_set);
 229         if (err)
 230                 goto err_flood_mc_set;
 231         return 0;
 232
 233 err_flood_mc_set:
 234         __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, idx_begin, idx_end,
 235                                         MLXSW_SP_FLOOD_TABLE_BC, !bc_set);
 236 err_flood_bm_set:
 237         __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, idx_begin, idx_end,
 238                                         MLXSW_SP_FLOOD_TABLE_UC, !uc_set);
 239         return err;
 240 }
 241
 242 static int mlxsw_sp_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port,
 243                                          enum mlxsw_sp_flood_table table,
 244                                          bool set)
 245 {
 246         struct net_device *dev = mlxsw_sp_port->dev;
 247         u16 vid, last_visited_vid;
 248         int err;
 249
 250         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 251                 u16 fid = mlxsw_sp_vport_fid_get(mlxsw_sp_port)->fid;
 252                 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
 253
 254                 return __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, vfid,
 255                                                        vfid, table, set);
 256         }
 257
 258         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 259                 err = __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, vid, vid,
 260                                                       table, set);
 261                 if (err) {
 262                         last_visited_vid = vid;
 263                         goto err_port_flood_set;
 264                 }
 265         }
 266
 267         return 0;
 268
 269 err_port_flood_set:
 270         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
 271                 __mlxsw_sp_port_flood_table_set(mlxsw_sp_port, vid, vid, table,
 272                                                 !set);
 273         netdev_err(dev, "Failed to configure unicast flooding\n");
 274         return err;
 275 }
 276
 277 static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port,
 278                                          struct switchdev_trans *trans,
 279                                          bool mc_disabled)
 280 {
 281         int set;
 282         int err = 0;
 283
 284         if (switchdev_trans_ph_prepare(trans))
 285                 return 0;
 286
 287         if (mlxsw_sp_port->mc_router != mlxsw_sp_port->mc_flood) {
 288                 set = mc_disabled ?
 289                         mlxsw_sp_port->mc_flood : mlxsw_sp_port->mc_router;
 290                 err = mlxsw_sp_port_flood_table_set(mlxsw_sp_port,
 291                                                     MLXSW_SP_FLOOD_TABLE_MC,
 292                                                     set);
 293         }
 294
 295         if (!err)
 296                 mlxsw_sp_port->mc_disabled = mc_disabled;
 297
 298         return err;
 299 }
 300
 301 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
 302                              bool set)
 303 {
 304         bool mc_set = set;
 305         u16 vfid;
 306
 307         /* In case of vFIDs, index into the flooding table is relative to
 308          * the start of the vFIDs range.
 309          */
 310         vfid = mlxsw_sp_fid_to_vfid(fid);
 311
 312         if (set)
 313                 mc_set = mlxsw_sp_vport->mc_disabled ?
 314                          mlxsw_sp_vport->mc_flood : mlxsw_sp_vport->mc_router;
 315
 316         return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set, set,
 317                                          mc_set);
 318 }
 319
 320 static int mlxsw_sp_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
 321                                       bool set)
 322 {
 323         u16 vid;
 324         int err;
 325
 326         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 327                 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 328
 329                 return __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
 330                                                         set);
 331         }
 332
 333         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 334                 err = __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
 335                                                        set);
 336                 if (err)
 337                         goto err_port_vid_learning_set;
 338         }
 339
 340         return 0;
 341
 342 err_port_vid_learning_set:
 343         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
 344                 __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid, !set);
 345         return err;
 346 }
 347
 348 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
 349                                            struct switchdev_trans *trans,
 350                                            unsigned long brport_flags)
 351 {
 352         unsigned long learning = mlxsw_sp_port->learning ? BR_LEARNING : 0;
 353         unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
 354         int err;
 355
 356         if (!mlxsw_sp_port->bridged)
 357                 return -EINVAL;
 358
 359         if (switchdev_trans_ph_prepare(trans))
 360                 return 0;
 361
 362         if ((uc_flood ^ brport_flags) & BR_FLOOD) {
 363                 err = mlxsw_sp_port_flood_table_set(mlxsw_sp_port,
 364                                                     MLXSW_SP_FLOOD_TABLE_UC,
 365                                                     !mlxsw_sp_port->uc_flood);
 366                 if (err)
 367                         return err;
 368         }
 369
 370         if ((learning ^ brport_flags) & BR_LEARNING) {
 371                 err = mlxsw_sp_port_learning_set(mlxsw_sp_port,
 372                                                  !mlxsw_sp_port->learning);
 373                 if (err)
 374                         goto err_port_learning_set;
 375         }
 376
 377         mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
 378         mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
 379         mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
 380
 381         return 0;
 382
 383 err_port_learning_set:
 384         if ((uc_flood ^ brport_flags) & BR_FLOOD)
 385                 mlxsw_sp_port_flood_table_set(mlxsw_sp_port,
 386                                               MLXSW_SP_FLOOD_TABLE_UC,
 387                                               mlxsw_sp_port->uc_flood);
 388         return err;
 389 }
 390
 391 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
 392 {
 393         char sfdat_pl[MLXSW_REG_SFDAT_LEN];
 394         int err;
 395
 396         mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
 397         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
 398         if (err)
 399                 return err;
 400         mlxsw_sp->ageing_time = ageing_time;
 401         return 0;
 402 }
 403
 404 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
 405                                             struct switchdev_trans *trans,
 406                                             unsigned long ageing_clock_t)
 407 {
 408         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 409         unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
 410         u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
 411
 412         if (switchdev_trans_ph_prepare(trans)) {
 413                 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
 414                     ageing_time > MLXSW_SP_MAX_AGEING_TIME)
 415                         return -ERANGE;
 416                 else
 417                         return 0;
 418         }
 419
 420         return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
 421 }
 422
 423 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
 424                                           struct switchdev_trans *trans,
 425                                           struct net_device *orig_dev,
 426                                           bool vlan_enabled)
 427 {
 428         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 429
 430         /* SWITCHDEV_TRANS_PREPARE phase */
 431         if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
 432                 netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
 433                 return -EINVAL;
 434         }
 435
 436         return 0;
 437 }
 438
 439 static int mlxsw_sp_port_attr_mc_router_set(struct mlxsw_sp_port *mlxsw_sp_port,
 440                                             struct switchdev_trans *trans,
 441                                             bool is_port_mc_router)
 442 {
 443         if (switchdev_trans_ph_prepare(trans))
 444                 return 0;
 445
 446         mlxsw_sp_port->mc_router = is_port_mc_router;
 447         if (!mlxsw_sp_port->mc_disabled)
 448                 return mlxsw_sp_port_flood_table_set(mlxsw_sp_port,
 449                                                      MLXSW_SP_FLOOD_TABLE_MC,
 450                                                      is_port_mc_router);
 451
 452         return 0;
 453 }
 454
 455 static int mlxsw_sp_port_attr_set(struct net_device *dev,
 456                                   const struct switchdev_attr *attr,
 457                                   struct switchdev_trans *trans)
 458 {
 459         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 460         int err = 0;
 461
 462         mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
 463         if (!mlxsw_sp_port)
 464                 return -EINVAL;
 465
 466         switch (attr->id) {
 467         case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
 468                 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
 469                                                        attr->u.stp_state);
 470                 break;
 471         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
 472                 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
 473                                                       attr->u.brport_flags);
 474                 break;
 475         case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
 476                 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
 477                                                        attr->u.ageing_time);
 478                 break;
 479         case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
 480                 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
 481                                                      attr->orig_dev,
 482                                                      attr->u.vlan_filtering);
 483                 break;
 484         case SWITCHDEV_ATTR_ID_PORT_MROUTER:
 485                 err = mlxsw_sp_port_attr_mc_router_set(mlxsw_sp_port, trans,
 486                                                        attr->u.mrouter);
 487                 break;
 488         case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
 489                 err = mlxsw_sp_port_mc_disabled_set(mlxsw_sp_port, trans,
 490                                                     attr->u.mc_disabled);
 491                 break;
 492         default:
 493                 err = -EOPNOTSUPP;
 494                 break;
 495         }
 496
 497         return err;
 498 }
 499
 500 static int mlxsw_sp_fid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
 501 {
 502         char sfmr_pl[MLXSW_REG_SFMR_LEN];
 503
 504         mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, fid);
 505         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
 506 }
 507
 508 static int mlxsw_sp_fid_map(struct mlxsw_sp *mlxsw_sp, u16 fid, bool valid)
 509 {
 510         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
 511         char svfa_pl[MLXSW_REG_SVFA_LEN];
 512
 513         mlxsw_reg_svfa_pack(svfa_pl, 0, mt, valid, fid, fid);
 514         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
 515 }
 516
 517 static struct mlxsw_sp_fid *mlxsw_sp_fid_alloc(u16 fid)
 518 {
 519         struct mlxsw_sp_fid *f;
 520
 521         f = kzalloc(sizeof(*f), GFP_KERNEL);
 522         if (!f)
 523                 return NULL;
 524
 525         f->fid = fid;
 526
 527         return f;
 528 }
 529
 530 struct mlxsw_sp_fid *mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
 531 {
 532         struct mlxsw_sp_fid *f;
 533         int err;
 534
 535         err = mlxsw_sp_fid_op(mlxsw_sp, fid, true);
 536         if (err)
 537                 return ERR_PTR(err);
 538
 539         /* Although all the ports member in the FID might be using a
 540          * {Port, VID} to FID mapping, we create a global VID-to-FID
 541          * mapping. This allows a port to transition to VLAN mode,
 542          * knowing the global mapping exists.
 543          */
 544         err = mlxsw_sp_fid_map(mlxsw_sp, fid, true);
 545         if (err)
 546                 goto err_fid_map;
 547
 548         f = mlxsw_sp_fid_alloc(fid);
 549         if (!f) {
 550                 err = -ENOMEM;
 551                 goto err_allocate_fid;
 552         }
 553
 554         list_add(&f->list, &mlxsw_sp->fids);
 555
 556         return f;
 557
 558 err_allocate_fid:
 559         mlxsw_sp_fid_map(mlxsw_sp, fid, false);
 560 err_fid_map:
 561         mlxsw_sp_fid_op(mlxsw_sp, fid, false);
 562         return ERR_PTR(err);
 563 }
 564
 565 void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *f)
 566 {
 567         u16 fid = f->fid;
 568
 569         list_del(&f->list);
 570
 571         if (f->r)
 572                 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
 573
 574         kfree(f);
 575
 576         mlxsw_sp_fid_map(mlxsw_sp, fid, false);
 577
 578         mlxsw_sp_fid_op(mlxsw_sp, fid, false);
 579 }
 580
 581 static int __mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
 582                                     u16 fid)
 583 {
 584         struct mlxsw_sp_fid *f;
 585
 586         if (test_bit(fid, mlxsw_sp_port->active_vlans))
 587                 return 0;
 588
 589         f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
 590         if (!f) {
 591                 f = mlxsw_sp_fid_create(mlxsw_sp_port->mlxsw_sp, fid);
 592                 if (IS_ERR(f))
 593                         return PTR_ERR(f);
 594         }
 595
 596         f->ref_count++;
 597
 598         netdev_dbg(mlxsw_sp_port->dev, "Joined FID=%d\n", fid);
 599
 600         return 0;
 601 }
 602
 603 static void __mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
 604                                       u16 fid)
 605 {
 606         struct mlxsw_sp_fid *f;
 607
 608         f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
 609         if (WARN_ON(!f))
 610                 return;
 611
 612         netdev_dbg(mlxsw_sp_port->dev, "Left FID=%d\n", fid);
 613
 614         mlxsw_sp_port_fdb_flush(mlxsw_sp_port, fid);
 615
 616         if (--f->ref_count == 0)
 617                 mlxsw_sp_fid_destroy(mlxsw_sp_port->mlxsw_sp, f);
 618 }
 619
 620 static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid,
 621                                  bool valid)
 622 {
 623         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
 624
 625         /* If port doesn't have vPorts, then it can use the global
 626          * VID-to-FID mapping.
 627          */
 628         if (list_empty(&mlxsw_sp_port->vports_list))
 629                 return 0;
 630
 631         return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, valid, fid, fid);
 632 }
 633
 634 static int mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
 635                                   u16 fid_begin, u16 fid_end)
 636 {
 637         bool mc_flood;
 638         int fid, err;
 639
 640         for (fid = fid_begin; fid <= fid_end; fid++) {
 641                 err = __mlxsw_sp_port_fid_join(mlxsw_sp_port, fid);
 642                 if (err)
 643                         goto err_port_fid_join;
 644         }
 645
 646         mc_flood = mlxsw_sp_port->mc_disabled ?
 647                         mlxsw_sp_port->mc_flood : mlxsw_sp_port->mc_router;
 648
 649         err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end,
 650                                         mlxsw_sp_port->uc_flood, true,
 651                                         mc_flood);
 652         if (err)
 653                 goto err_port_flood_set;
 654
 655         for (fid = fid_begin; fid <= fid_end; fid++) {
 656                 err = mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, true);
 657                 if (err)
 658                         goto err_port_fid_map;
 659         }
 660
 661         return 0;
 662
 663 err_port_fid_map:
 664         for (fid--; fid >= fid_begin; fid--)
 665                 mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
 666         __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
 667                                   false, false);
 668 err_port_flood_set:
 669         fid = fid_end;
 670 err_port_fid_join:
 671         for (fid--; fid >= fid_begin; fid--)
 672                 __mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
 673         return err;
 674 }
 675
 676 static void mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
 677                                     u16 fid_begin, u16 fid_end)
 678 {
 679         int fid;
 680
 681         for (fid = fid_begin; fid <= fid_end; fid++)
 682                 mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
 683
 684         __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
 685                                   false, false);
 686
 687         for (fid = fid_begin; fid <= fid_end; fid++)
 688                 __mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
 689 }
 690
 691 static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
 692                                     u16 vid)
 693 {
 694         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 695         char spvid_pl[MLXSW_REG_SPVID_LEN];
 696
 697         mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
 698         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
 699 }
 700
 701 static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
 702                                             bool allow)
 703 {
 704         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 705         char spaft_pl[MLXSW_REG_SPAFT_LEN];
 706
 707         mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
 708         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
 709 }
 710
 711 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
 712 {
 713         struct net_device *dev = mlxsw_sp_port->dev;
 714         int err;
 715
 716         if (!vid) {
 717                 err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
 718                 if (err) {
 719                         netdev_err(dev, "Failed to disallow untagged traffic\n");
 720                         return err;
 721                 }
 722         } else {
 723                 err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
 724                 if (err) {
 725                         netdev_err(dev, "Failed to set PVID\n");
 726                         return err;
 727                 }
 728
 729                 /* Only allow if not already allowed. */
 730                 if (!mlxsw_sp_port->pvid) {
 731                         err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port,
 732                                                                true);
 733                         if (err) {
 734                                 netdev_err(dev, "Failed to allow untagged traffic\n");
 735                                 goto err_port_allow_untagged_set;
 736                         }
 737                 }
 738         }
 739
 740         mlxsw_sp_port->pvid = vid;
 741         return 0;
 742
 743 err_port_allow_untagged_set:
 744         __mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
 745         return err;
 746 }
 747
 748 static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
 749                                      u16 vid_begin, u16 vid_end, bool is_member,
 750                                      bool untagged)
 751 {
 752         u16 vid, vid_e;
 753         int err;
 754
 755         for (vid = vid_begin; vid <= vid_end;
 756              vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
 757                 vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
 758                             vid_end);
 759
 760                 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
 761                                              is_member, untagged);
 762                 if (err)
 763                         return err;
 764         }
 765
 766         return 0;
 767 }
 768
 769 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
 770                                           u16 vid_begin, u16 vid_end,
 771                                           bool learn_enable)
 772 {
 773         u16 vid, vid_e;
 774         int err;
 775
 776         for (vid = vid_begin; vid <= vid_end;
 777              vid += MLXSW_REG_SPVMLR_REC_MAX_COUNT) {
 778                 vid_e = min((u16) (vid + MLXSW_REG_SPVMLR_REC_MAX_COUNT - 1),
 779                             vid_end);
 780
 781                 err = __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid,
 782                                                        vid_e, learn_enable);
 783                 if (err)
 784                         return err;
 785         }
 786
 787         return 0;
 788 }
 789
 790 static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 791                                      u16 vid_begin, u16 vid_end,
 792                                      bool flag_untagged, bool flag_pvid)
 793 {
 794         struct net_device *dev = mlxsw_sp_port->dev;
 795         u16 vid, old_pvid;
 796         int err;
 797
 798         if (!mlxsw_sp_port->bridged)
 799                 return -EINVAL;
 800
 801         err = mlxsw_sp_port_fid_join(mlxsw_sp_port, vid_begin, vid_end);
 802         if (err) {
 803                 netdev_err(dev, "Failed to join FIDs\n");
 804                 return err;
 805         }
 806
 807         err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
 808                                         true, flag_untagged);
 809         if (err) {
 810                 netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
 811                            vid_end);
 812                 goto err_port_vlans_set;
 813         }
 814
 815         old_pvid = mlxsw_sp_port->pvid;
 816         if (flag_pvid && old_pvid != vid_begin) {
 817                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
 818                 if (err) {
 819                         netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
 820                         goto err_port_pvid_set;
 821                 }
 822         } else if (!flag_pvid && old_pvid >= vid_begin && old_pvid <= vid_end) {
 823                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
 824                 if (err) {
 825                         netdev_err(dev, "Unable to del PVID\n");
 826                         goto err_port_pvid_set;
 827                 }
 828         }
 829
 830         err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
 831                                              mlxsw_sp_port->learning);
 832         if (err) {
 833                 netdev_err(dev, "Failed to set learning for VIDs %d-%d\n",
 834                            vid_begin, vid_end);
 835                 goto err_port_vid_learning_set;
 836         }
 837
 838         /* Changing activity bits only if HW operation succeded */
 839         for (vid = vid_begin; vid <= vid_end; vid++) {
 840                 set_bit(vid, mlxsw_sp_port->active_vlans);
 841                 if (flag_untagged)
 842                         set_bit(vid, mlxsw_sp_port->untagged_vlans);
 843                 else
 844                         clear_bit(vid, mlxsw_sp_port->untagged_vlans);
 845         }
 846
 847         /* STP state change must be done after we set active VLANs */
 848         err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
 849                                           mlxsw_sp_port->stp_state);
 850         if (err) {
 851                 netdev_err(dev, "Failed to set STP state\n");
 852                 goto err_port_stp_state_set;
 853         }
 854
 855         return 0;
 856
 857 err_port_stp_state_set:
 858         for (vid = vid_begin; vid <= vid_end; vid++)
 859                 clear_bit(vid, mlxsw_sp_port->active_vlans);
 860         mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
 861                                        false);
 862 err_port_vid_learning_set:
 863         if (old_pvid != mlxsw_sp_port->pvid)
 864                 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
 865 err_port_pvid_set:
 866         __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
 867                                   false);
 868 err_port_vlans_set:
 869         mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
 870         return err;
 871 }
 872
 873 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 874                                    const struct switchdev_obj_port_vlan *vlan,
 875                                    struct switchdev_trans *trans)
 876 {
 877         bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 878         bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 879
 880         if (switchdev_trans_ph_prepare(trans))
 881                 return 0;
 882
 883         return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
 884                                          vlan->vid_begin, vlan->vid_end,
 885                                          flag_untagged, flag_pvid);
 886 }
 887
 888 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
 889 {
 890         return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
 891                          MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
 892 }
 893
 894 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
 895 {
 896         return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
 897                         MLXSW_REG_SFD_OP_WRITE_REMOVE;
 898 }
 899
 900 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 901                                      const char *mac, u16 fid, bool adding,
 902                                      enum mlxsw_reg_sfd_rec_action action,
 903                                      bool dynamic)
 904 {
 905         char *sfd_pl;
 906         int err;
 907
 908         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 909         if (!sfd_pl)
 910                 return -ENOMEM;
 911
 912         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 913         mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
 914                               mac, fid, action, local_port);
 915         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 916         kfree(sfd_pl);
 917
 918         return err;
 919 }
 920
 921 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 922                                    const char *mac, u16 fid, bool adding,
 923                                    bool dynamic)
 924 {
 925         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
 926                                          MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
 927 }
 928
 929 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
 930                         bool adding)
 931 {
 932         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
 933                                          MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
 934                                          false);
 935 }
 936
 937 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
 938                                        const char *mac, u16 fid, u16 lag_vid,
 939                                        bool adding, bool dynamic)
 940 {
 941         char *sfd_pl;
 942         int err;
 943
 944         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 945         if (!sfd_pl)
 946                 return -ENOMEM;
 947
 948         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 949         mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
 950                                   mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
 951                                   lag_vid, lag_id);
 952         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 953         kfree(sfd_pl);
 954
 955         return err;
 956 }
 957
 958 static int
 959 mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
 960                              const struct switchdev_obj_port_fdb *fdb,
 961                              struct switchdev_trans *trans)
 962 {
 963         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
 964         u16 lag_vid = 0;
 965
 966         if (switchdev_trans_ph_prepare(trans))
 967                 return 0;
 968
 969         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 970                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 971         }
 972
 973         if (!mlxsw_sp_port->lagged)
 974                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
 975                                                mlxsw_sp_port->local_port,
 976                                                fdb->addr, fid, true, false);
 977         else
 978                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
 979                                                    mlxsw_sp_port->lag_id,
 980                                                    fdb->addr, fid, lag_vid,
 981                                                    true, false);
 982 }
 983
 984 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
 985                                 u16 fid, u16 mid, bool adding)
 986 {
 987         char *sfd_pl;
 988         int err;
 989
 990         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 991         if (!sfd_pl)
 992                 return -ENOMEM;
 993
 994         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 995         mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
 996                               MLXSW_REG_SFD_REC_ACTION_NOP, mid);
 997         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 998         kfree(sfd_pl);
 999         return err;
1000 }
1001
1002 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid,
1003                                   bool add, bool clear_all_ports)
1004 {
1005         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1006         char *smid_pl;
1007         int err, i;
1008
1009         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1010         if (!smid_pl)
1011                 return -ENOMEM;
1012
1013         mlxsw_reg_smid_pack(smid_pl, mid, mlxsw_sp_port->local_port, add);
1014         if (clear_all_ports) {
1015                 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
1016                         if (mlxsw_sp->ports[i])
1017                                 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
1018         }
1019         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1020         kfree(smid_pl);
1021         return err;
1022 }
1023
1024 static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp *mlxsw_sp,
1025                                               const unsigned char *addr,
1026                                               u16 fid)
1027 {
1028         struct mlxsw_sp_mid *mid;
1029
1030         list_for_each_entry(mid, &mlxsw_sp->br_mids.list, list) {
1031                 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid)
1032                         return mid;
1033         }
1034         return NULL;
1035 }
1036
1037 static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
1038                                                 const unsigned char *addr,
1039                                                 u16 fid)
1040 {
1041         struct mlxsw_sp_mid *mid;
1042         u16 mid_idx;
1043
1044         mid_idx = find_first_zero_bit(mlxsw_sp->br_mids.mapped,
1045                                       MLXSW_SP_MID_MAX);
1046         if (mid_idx == MLXSW_SP_MID_MAX)
1047                 return NULL;
1048
1049         mid = kzalloc(sizeof(*mid), GFP_KERNEL);
1050         if (!mid)
1051                 return NULL;
1052
1053         set_bit(mid_idx, mlxsw_sp->br_mids.mapped);
1054         ether_addr_copy(mid->addr, addr);
1055         mid->fid = fid;
1056         mid->mid = mid_idx;
1057         mid->ref_count = 0;
1058         list_add_tail(&mid->list, &mlxsw_sp->br_mids.list);
1059
1060         return mid;
1061 }
1062
1063 static int __mlxsw_sp_mc_dec_ref(struct mlxsw_sp *mlxsw_sp,
1064                                  struct mlxsw_sp_mid *mid)
1065 {
1066         if (--mid->ref_count == 0) {
1067                 list_del(&mid->list);
1068                 clear_bit(mid->mid, mlxsw_sp->br_mids.mapped);
1069                 kfree(mid);
1070                 return 1;
1071         }
1072         return 0;
1073 }
1074
1075 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
1076                                  const struct switchdev_obj_port_mdb *mdb,
1077                                  struct switchdev_trans *trans)
1078 {
1079         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1080         struct net_device *dev = mlxsw_sp_port->dev;
1081         struct mlxsw_sp_mid *mid;
1082         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
1083         int err = 0;
1084
1085         if (switchdev_trans_ph_prepare(trans))
1086                 return 0;
1087
1088         mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, fid);
1089         if (!mid) {
1090                 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, mdb->addr, fid);
1091                 if (!mid) {
1092                         netdev_err(dev, "Unable to allocate MC group\n");
1093                         return -ENOMEM;
1094                 }
1095         }
1096         mid->ref_count++;
1097
1098         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true,
1099                                      mid->ref_count == 1);
1100         if (err) {
1101                 netdev_err(dev, "Unable to set SMID\n");
1102                 goto err_out;
1103         }
1104
1105         if (mid->ref_count == 1) {
1106                 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid->mid,
1107                                            true);
1108                 if (err) {
1109                         netdev_err(dev, "Unable to set MC SFD\n");
1110                         goto err_out;
1111                 }
1112         }
1113
1114         return 0;
1115
1116 err_out:
1117         __mlxsw_sp_mc_dec_ref(mlxsw_sp, mid);
1118         return err;
1119 }
1120
1121 static int mlxsw_sp_port_obj_add(struct net_device *dev,
1122                                  const struct switchdev_obj *obj,
1123                                  struct switchdev_trans *trans)
1124 {
1125         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1126         int err = 0;
1127
1128         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1129         if (!mlxsw_sp_port)
1130                 return -EINVAL;
1131
1132         switch (obj->id) {
1133         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1134                 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
1135                         return 0;
1136
1137                 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
1138                                               SWITCHDEV_OBJ_PORT_VLAN(obj),
1139                                               trans);
1140                 break;
1141         case SWITCHDEV_OBJ_ID_PORT_FDB:
1142                 err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
1143                                                    SWITCHDEV_OBJ_PORT_FDB(obj),
1144                                                    trans);
1145                 break;
1146         case SWITCHDEV_OBJ_ID_PORT_MDB:
1147                 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
1148                                             SWITCHDEV_OBJ_PORT_MDB(obj),
1149                                             trans);
1150                 break;
1151         default:
1152                 err = -EOPNOTSUPP;
1153                 break;
1154         }
1155
1156         return err;
1157 }
1158
1159 static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1160                                      u16 vid_begin, u16 vid_end)
1161 {
1162         u16 vid, pvid;
1163
1164         if (!mlxsw_sp_port->bridged)
1165                 return -EINVAL;
1166
1167         mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
1168                                        false);
1169
1170         pvid = mlxsw_sp_port->pvid;
1171         if (pvid >= vid_begin && pvid <= vid_end)
1172                 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
1173
1174         __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
1175                                   false);
1176
1177         mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
1178
1179         /* Changing activity bits only if HW operation succeded */
1180         for (vid = vid_begin; vid <= vid_end; vid++)
1181                 clear_bit(vid, mlxsw_sp_port->active_vlans);
1182
1183         return 0;
1184 }
1185
1186 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1187                                    const struct switchdev_obj_port_vlan *vlan)
1188 {
1189         return __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vlan->vid_begin,
1190                                          vlan->vid_end);
1191 }
1192
1193 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port)
1194 {
1195         u16 vid;
1196
1197         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
1198                 __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vid, vid);
1199 }
1200
1201 static int
1202 mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
1203                              const struct switchdev_obj_port_fdb *fdb)
1204 {
1205         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
1206         u16 lag_vid = 0;
1207
1208         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1209                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1210         }
1211
1212         if (!mlxsw_sp_port->lagged)
1213                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
1214                                                mlxsw_sp_port->local_port,
1215                                                fdb->addr, fid,
1216                                                false, false);
1217         else
1218                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
1219                                                    mlxsw_sp_port->lag_id,
1220                                                    fdb->addr, fid, lag_vid,
1221                                                    false, false);
1222 }
1223
1224 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1225                                  const struct switchdev_obj_port_mdb *mdb)
1226 {
1227         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1228         struct net_device *dev = mlxsw_sp_port->dev;
1229         struct mlxsw_sp_mid *mid;
1230         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
1231         u16 mid_idx;
1232         int err = 0;
1233
1234         mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, fid);
1235         if (!mid) {
1236                 netdev_err(dev, "Unable to remove port from MC DB\n");
1237                 return -EINVAL;
1238         }
1239
1240         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false, false);
1241         if (err)
1242                 netdev_err(dev, "Unable to remove port from SMID\n");
1243
1244         mid_idx = mid->mid;
1245         if (__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid)) {
1246                 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid_idx,
1247                                            false);
1248                 if (err)
1249                         netdev_err(dev, "Unable to remove MC SFD\n");
1250         }
1251
1252         return err;
1253 }
1254
1255 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1256                                  const struct switchdev_obj *obj)
1257 {
1258         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1259         int err = 0;
1260
1261         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1262         if (!mlxsw_sp_port)
1263                 return -EINVAL;
1264
1265         switch (obj->id) {
1266         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1267                 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
1268                         return 0;
1269
1270                 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1271                                               SWITCHDEV_OBJ_PORT_VLAN(obj));
1272                 break;
1273         case SWITCHDEV_OBJ_ID_PORT_FDB:
1274                 err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
1275                                                    SWITCHDEV_OBJ_PORT_FDB(obj));
1276                 break;
1277         case SWITCHDEV_OBJ_ID_PORT_MDB:
1278                 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1279                                             SWITCHDEV_OBJ_PORT_MDB(obj));
1280                 break;
1281         default:
1282                 err = -EOPNOTSUPP;
1283                 break;
1284         }
1285
1286         return err;
1287 }
1288
1289 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1290                                                    u16 lag_id)
1291 {
1292         struct mlxsw_sp_port *mlxsw_sp_port;
1293         u64 max_lag_members;
1294         int i;
1295
1296         max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1297                                              MAX_LAG_MEMBERS);
1298         for (i = 0; i < max_lag_members; i++) {
1299                 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1300                 if (mlxsw_sp_port)
1301                         return mlxsw_sp_port;
1302         }
1303         return NULL;
1304 }
1305
1306 static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1307                                   struct switchdev_obj_port_fdb *fdb,
1308                                   switchdev_obj_dump_cb_t *cb,
1309                                   struct net_device *orig_dev)
1310 {
1311         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1312         struct mlxsw_sp_port *tmp;
1313         struct mlxsw_sp_fid *f;
1314         u16 vport_fid;
1315         char *sfd_pl;
1316         char mac[ETH_ALEN];
1317         u16 fid;
1318         u8 local_port;
1319         u16 lag_id;
1320         u8 num_rec;
1321         int stored_err = 0;
1322         int i;
1323         int err;
1324
1325         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1326         if (!sfd_pl)
1327                 return -ENOMEM;
1328
1329         f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
1330         vport_fid = f ? f->fid : 0;
1331
1332         mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
1333         do {
1334                 mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
1335                 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1336                 if (err)
1337                         goto out;
1338
1339                 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1340
1341                 /* Even in case of error, we have to run the dump to the end
1342                  * so the session in firmware is finished.
1343                  */
1344                 if (stored_err)
1345                         continue;
1346
1347                 for (i = 0; i < num_rec; i++) {
1348                         switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
1349                         case MLXSW_REG_SFD_REC_TYPE_UNICAST:
1350                                 mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
1351                                                         &local_port);
1352                                 if (local_port == mlxsw_sp_port->local_port) {
1353                                         if (vport_fid && vport_fid == fid)
1354                                                 fdb->vid = 0;
1355                                         else if (!vport_fid &&
1356                                                  !mlxsw_sp_fid_is_vfid(fid))
1357                                                 fdb->vid = fid;
1358                                         else
1359                                                 continue;
1360                                         ether_addr_copy(fdb->addr, mac);
1361                                         fdb->ndm_state = NUD_REACHABLE;
1362                                         err = cb(&fdb->obj);
1363                                         if (err)
1364                                                 stored_err = err;
1365                                 }
1366                                 break;
1367                         case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
1368                                 mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
1369                                                             mac, &fid, &lag_id);
1370                                 tmp = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1371                                 if (tmp && tmp->local_port ==
1372                                     mlxsw_sp_port->local_port) {
1373                                         /* LAG records can only point to LAG
1374                                          * devices or VLAN devices on top.
1375                                          */
1376                                         if (!netif_is_lag_master(orig_dev) &&
1377                                             !is_vlan_dev(orig_dev))
1378                                                 continue;
1379                                         if (vport_fid && vport_fid == fid)
1380                                                 fdb->vid = 0;
1381                                         else if (!vport_fid &&
1382                                                  !mlxsw_sp_fid_is_vfid(fid))
1383                                                 fdb->vid = fid;
1384                                         else
1385                                                 continue;
1386                                         ether_addr_copy(fdb->addr, mac);
1387                                         fdb->ndm_state = NUD_REACHABLE;
1388                                         err = cb(&fdb->obj);
1389                                         if (err)
1390                                                 stored_err = err;
1391                                 }
1392                                 break;
1393                         }
1394                 }
1395         } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);
1396
1397 out:
1398         kfree(sfd_pl);
1399         return stored_err ? stored_err : err;
1400 }
1401
1402 static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1403                                    struct switchdev_obj_port_vlan *vlan,
1404                                    switchdev_obj_dump_cb_t *cb)
1405 {
1406         u16 vid;
1407         int err = 0;
1408
1409         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1410                 vlan->flags = 0;
1411                 vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1412                 vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1413                 return cb(&vlan->obj);
1414         }
1415
1416         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
1417                 vlan->flags = 0;
1418                 if (vid == mlxsw_sp_port->pvid)
1419                         vlan->flags |= BRIDGE_VLAN_INFO_PVID;
1420                 if (test_bit(vid, mlxsw_sp_port->untagged_vlans))
1421                         vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
1422                 vlan->vid_begin = vid;
1423                 vlan->vid_end = vid;
1424                 err = cb(&vlan->obj);
1425                 if (err)
1426                         break;
1427         }
1428         return err;
1429 }
1430
1431 static int mlxsw_sp_port_obj_dump(struct net_device *dev,
1432                                   struct switchdev_obj *obj,
1433                                   switchdev_obj_dump_cb_t *cb)
1434 {
1435         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1436         int err = 0;
1437
1438         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1439         if (!mlxsw_sp_port)
1440                 return -EINVAL;
1441
1442         switch (obj->id) {
1443         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1444                 err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
1445                                               SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
1446                 break;
1447         case SWITCHDEV_OBJ_ID_PORT_FDB:
1448                 err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
1449                                              SWITCHDEV_OBJ_PORT_FDB(obj), cb,
1450                                              obj->orig_dev);
1451                 break;
1452         default:
1453                 err = -EOPNOTSUPP;
1454                 break;
1455         }
1456
1457         return err;
1458 }
1459
1460 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1461         .switchdev_port_attr_get        = mlxsw_sp_port_attr_get,
1462         .switchdev_port_attr_set        = mlxsw_sp_port_attr_set,
1463         .switchdev_port_obj_add         = mlxsw_sp_port_obj_add,
1464         .switchdev_port_obj_del         = mlxsw_sp_port_obj_del,
1465         .switchdev_port_obj_dump        = mlxsw_sp_port_obj_dump,
1466 };
1467
1468 static void mlxsw_sp_fdb_call_notifiers(bool learning_sync, bool adding,
1469                                         char *mac, u16 vid,
1470                                         struct net_device *dev)
1471 {
1472         struct switchdev_notifier_fdb_info info;
1473         unsigned long notifier_type;
1474
1475         if (learning_sync) {
1476                 info.addr = mac;
1477                 info.vid = vid;
1478                 notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
1479                 call_switchdev_notifiers(notifier_type, dev, &info.info);
1480         }
1481 }
1482
1483 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1484                                             char *sfn_pl, int rec_index,
1485                                             bool adding)
1486 {
1487         struct mlxsw_sp_port *mlxsw_sp_port;
1488         char mac[ETH_ALEN];
1489         u8 local_port;
1490         u16 vid, fid;
1491         bool do_notification = true;
1492         int err;
1493
1494         mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1495         mlxsw_sp_port = mlxsw_sp->ports[local_port];
1496         if (!mlxsw_sp_port) {
1497                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1498                 goto just_remove;
1499         }
1500
1501         if (mlxsw_sp_fid_is_vfid(fid)) {
1502                 struct mlxsw_sp_port *mlxsw_sp_vport;
1503
1504                 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
1505                                                                  fid);
1506                 if (!mlxsw_sp_vport) {
1507                         netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1508                         goto just_remove;
1509                 }
1510                 vid = 0;
1511                 /* Override the physical port with the vPort. */
1512                 mlxsw_sp_port = mlxsw_sp_vport;
1513         } else {
1514                 vid = fid;
1515         }
1516
1517 do_fdb_op:
1518         err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
1519                                       adding, true);
1520         if (err) {
1521                 if (net_ratelimit())
1522                         netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1523                 return;
1524         }
1525
1526         if (!do_notification)
1527                 return;
1528         mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync,
1529                                     adding, mac, vid, mlxsw_sp_port->dev);
1530         return;
1531
1532 just_remove:
1533         adding = false;
1534         do_notification = false;
1535         goto do_fdb_op;
1536 }
1537
1538 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
1539                                                 char *sfn_pl, int rec_index,
1540                                                 bool adding)
1541 {
1542         struct mlxsw_sp_port *mlxsw_sp_port;
1543         struct net_device *dev;
1544         char mac[ETH_ALEN];
1545         u16 lag_vid = 0;
1546         u16 lag_id;
1547         u16 vid, fid;
1548         bool do_notification = true;
1549         int err;
1550
1551         mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1552         mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1553         if (!mlxsw_sp_port) {
1554                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1555                 goto just_remove;
1556         }
1557
1558         if (mlxsw_sp_fid_is_vfid(fid)) {
1559                 struct mlxsw_sp_port *mlxsw_sp_vport;
1560
1561                 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
1562                                                                  fid);
1563                 if (!mlxsw_sp_vport) {
1564                         netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1565                         goto just_remove;
1566                 }
1567
1568                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1569                 dev = mlxsw_sp_vport->dev;
1570                 vid = 0;
1571                 /* Override the physical port with the vPort. */
1572                 mlxsw_sp_port = mlxsw_sp_vport;
1573         } else {
1574                 dev = mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev;
1575                 vid = fid;
1576         }
1577
1578 do_fdb_op:
1579         err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1580                                           adding, true);
1581         if (err) {
1582                 if (net_ratelimit())
1583                         netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1584                 return;
1585         }
1586
1587         if (!do_notification)
1588                 return;
1589         mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync, adding, mac,
1590                                     vid, dev);
1591         return;
1592
1593 just_remove:
1594         adding = false;
1595         do_notification = false;
1596         goto do_fdb_op;
1597 }
1598
1599 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
1600                                             char *sfn_pl, int rec_index)
1601 {
1602         switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
1603         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
1604                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1605                                                 rec_index, true);
1606                 break;
1607         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
1608                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1609                                                 rec_index, false);
1610                 break;
1611         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
1612                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1613                                                     rec_index, true);
1614                 break;
1615         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
1616                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1617                                                     rec_index, false);
1618                 break;
1619         }
1620 }
1621
1622 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
1623 {
1624         mlxsw_core_schedule_dw(&mlxsw_sp->fdb_notify.dw,
1625                                msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
1626 }
1627
1628 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
1629 {
1630         struct mlxsw_sp *mlxsw_sp;
1631         char *sfn_pl;
1632         u8 num_rec;
1633         int i;
1634         int err;
1635
1636         sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
1637         if (!sfn_pl)
1638                 return;
1639
1640         mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
1641
1642         rtnl_lock();
1643         mlxsw_reg_sfn_pack(sfn_pl);
1644         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
1645         if (err) {
1646                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
1647                 goto out;
1648         }
1649         num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
1650         for (i = 0; i < num_rec; i++)
1651                 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
1652
1653 out:
1654         rtnl_unlock();
1655         kfree(sfn_pl);
1656         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1657 }
1658
1659 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
1660 {
1661         int err;
1662
1663         err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
1664         if (err) {
1665                 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
1666                 return err;
1667         }
1668         INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
1669         mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
1670         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1671         return 0;
1672 }
1673
1674 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
1675 {
1676         cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
1677 }
1678
1679 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
1680 {
1681         return mlxsw_sp_fdb_init(mlxsw_sp);
1682 }
1683
1684 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
1685 {
1686         mlxsw_sp_fdb_fini(mlxsw_sp);
1687 }
1688
1689 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
1690 {
1691         mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
1692 }
1693
1694 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
1695 {
1696 }