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 <net/switchdev.h>
  49
  50 #include "spectrum.h"
  51 #include "core.h"
  52 #include "reg.h"
  53
  54 static struct mlxsw_sp_port *
  55 mlxsw_sp_port_orig_get(struct net_device *dev,
  56                        struct mlxsw_sp_port *mlxsw_sp_port)
  57 {
  58         struct mlxsw_sp_port *mlxsw_sp_vport;
  59         u16 vid;
  60
  61         if (!is_vlan_dev(dev))
  62                 return mlxsw_sp_port;
  63
  64         vid = vlan_dev_vlan_id(dev);
  65         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
  66         WARN_ON(!mlxsw_sp_vport);
  67
  68         return mlxsw_sp_vport;
  69 }
  70
  71 static int mlxsw_sp_port_attr_get(struct net_device *dev,
  72                                   struct switchdev_attr *attr)
  73 {
  74         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
  75         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
  76
  77         mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
  78         if (!mlxsw_sp_port)
  79                 return -EINVAL;
  80
  81         switch (attr->id) {
  82         case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
  83                 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
  84                 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
  85                        attr->u.ppid.id_len);
  86                 break;
  87         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
  88                 attr->u.brport_flags =
  89                         (mlxsw_sp_port->learning ? BR_LEARNING : 0) |
  90                         (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) |
  91                         (mlxsw_sp_port->uc_flood ? BR_FLOOD : 0);
  92                 break;
  93         default:
  94                 return -EOPNOTSUPP;
  95         }
  96
  97         return 0;
  98 }
  99
 100 static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
 101                                        u8 state)
 102 {
 103         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 104         enum mlxsw_reg_spms_state spms_state;
 105         char *spms_pl;
 106         u16 vid;
 107         int err;
 108
 109         switch (state) {
 110         case BR_STATE_DISABLED: /* fall-through */
 111         case BR_STATE_FORWARDING:
 112                 spms_state = MLXSW_REG_SPMS_STATE_FORWARDING;
 113                 break;
 114         case BR_STATE_LISTENING: /* fall-through */
 115         case BR_STATE_LEARNING:
 116                 spms_state = MLXSW_REG_SPMS_STATE_LEARNING;
 117                 break;
 118         case BR_STATE_BLOCKING:
 119                 spms_state = MLXSW_REG_SPMS_STATE_DISCARDING;
 120                 break;
 121         default:
 122                 BUG();
 123         }
 124
 125         spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
 126         if (!spms_pl)
 127                 return -ENOMEM;
 128         mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
 129
 130         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 131                 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 132                 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
 133         } else {
 134                 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
 135                         mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
 136         }
 137
 138         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
 139         kfree(spms_pl);
 140         return err;
 141 }
 142
 143 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
 144                                             struct switchdev_trans *trans,
 145                                             u8 state)
 146 {
 147         if (switchdev_trans_ph_prepare(trans))
 148                 return 0;
 149
 150         mlxsw_sp_port->stp_state = state;
 151         return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state);
 152 }
 153
 154 static bool mlxsw_sp_vfid_is_vport_br(u16 vfid)
 155 {
 156         return vfid >= MLXSW_SP_VFID_PORT_MAX;
 157 }
 158
 159 static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
 160                                      u16 idx_begin, u16 idx_end, bool set,
 161                                      bool only_uc)
 162 {
 163         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 164         u16 local_port = mlxsw_sp_port->local_port;
 165         enum mlxsw_flood_table_type table_type;
 166         u16 range = idx_end - idx_begin + 1;
 167         char *sftr_pl;
 168         int err;
 169
 170         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 171                 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
 172                 if (mlxsw_sp_vfid_is_vport_br(idx_begin))
 173                         local_port = mlxsw_sp_port->local_port;
 174                 else
 175                         local_port = MLXSW_PORT_CPU_PORT;
 176         } else {
 177                 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
 178         }
 179
 180         sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
 181         if (!sftr_pl)
 182                 return -ENOMEM;
 183
 184         mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
 185                             table_type, range, local_port, set);
 186         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
 187         if (err)
 188                 goto buffer_out;
 189
 190         /* Flooding control allows one to decide whether a given port will
 191          * flood unicast traffic for which there is no FDB entry.
 192          */
 193         if (only_uc)
 194                 goto buffer_out;
 195
 196         mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin,
 197                             table_type, range, local_port, set);
 198         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
 199
 200 buffer_out:
 201         kfree(sftr_pl);
 202         return err;
 203 }
 204
 205 static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
 206                                       bool set)
 207 {
 208         struct net_device *dev = mlxsw_sp_port->dev;
 209         u16 vid, last_visited_vid;
 210         int err;
 211
 212         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 213                 u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
 214
 215                 return  __mlxsw_sp_port_flood_set(mlxsw_sp_port, vfid, vfid,
 216                                                   set, true);
 217         }
 218
 219         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 220                 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set,
 221                                                 true);
 222                 if (err) {
 223                         last_visited_vid = vid;
 224                         goto err_port_flood_set;
 225                 }
 226         }
 227
 228         return 0;
 229
 230 err_port_flood_set:
 231         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
 232                 __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true);
 233         netdev_err(dev, "Failed to configure unicast flooding\n");
 234         return err;
 235 }
 236
 237 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid,
 238                              bool set, bool only_uc)
 239 {
 240         /* In case of vFIDs, index into the flooding table is relative to
 241          * the start of the vFIDs range.
 242          */
 243         return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set,
 244                                          only_uc);
 245 }
 246
 247 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
 248                                            struct switchdev_trans *trans,
 249                                            unsigned long brport_flags)
 250 {
 251         unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
 252         bool set;
 253         int err;
 254
 255         if (!mlxsw_sp_port->bridged)
 256                 return -EINVAL;
 257
 258         if (switchdev_trans_ph_prepare(trans))
 259                 return 0;
 260
 261         if ((uc_flood ^ brport_flags) & BR_FLOOD) {
 262                 set = mlxsw_sp_port->uc_flood ? false : true;
 263                 err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port, set);
 264                 if (err)
 265                         return err;
 266         }
 267
 268         mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
 269         mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
 270         mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
 271
 272         return 0;
 273 }
 274
 275 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
 276 {
 277         char sfdat_pl[MLXSW_REG_SFDAT_LEN];
 278         int err;
 279
 280         mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
 281         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
 282         if (err)
 283                 return err;
 284         mlxsw_sp->ageing_time = ageing_time;
 285         return 0;
 286 }
 287
 288 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
 289                                             struct switchdev_trans *trans,
 290                                             unsigned long ageing_clock_t)
 291 {
 292         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 293         unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
 294         u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
 295
 296         if (switchdev_trans_ph_prepare(trans))
 297                 return 0;
 298
 299         return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
 300 }
 301
 302 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
 303                                           struct switchdev_trans *trans,
 304                                           struct net_device *orig_dev,
 305                                           bool vlan_enabled)
 306 {
 307         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 308
 309         /* SWITCHDEV_TRANS_PREPARE phase */
 310         if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
 311                 netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
 312                 return -EINVAL;
 313         }
 314
 315         return 0;
 316 }
 317
 318 static int mlxsw_sp_port_attr_set(struct net_device *dev,
 319                                   const struct switchdev_attr *attr,
 320                                   struct switchdev_trans *trans)
 321 {
 322         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 323         int err = 0;
 324
 325         mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
 326         if (!mlxsw_sp_port)
 327                 return -EINVAL;
 328
 329         switch (attr->id) {
 330         case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
 331                 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
 332                                                        attr->u.stp_state);
 333                 break;
 334         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
 335                 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
 336                                                       attr->u.brport_flags);
 337                 break;
 338         case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
 339                 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
 340                                                        attr->u.ageing_time);
 341                 break;
 342         case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
 343                 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
 344                                                      attr->orig_dev,
 345                                                      attr->u.vlan_filtering);
 346                 break;
 347         default:
 348                 err = -EOPNOTSUPP;
 349                 break;
 350         }
 351
 352         return err;
 353 }
 354
 355 static int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
 356 {
 357         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 358         char spvid_pl[MLXSW_REG_SPVID_LEN];
 359
 360         mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
 361         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
 362 }
 363
 364 static int mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
 365 {
 366         char sfmr_pl[MLXSW_REG_SFMR_LEN];
 367         int err;
 368
 369         mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, fid);
 370         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
 371
 372         if (err)
 373                 return err;
 374
 375         set_bit(fid, mlxsw_sp->active_fids);
 376         return 0;
 377 }
 378
 379 static void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, u16 fid)
 380 {
 381         char sfmr_pl[MLXSW_REG_SFMR_LEN];
 382
 383         clear_bit(fid, mlxsw_sp->active_fids);
 384
 385         mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID,
 386                             fid, fid);
 387         mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
 388 }
 389
 390 static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
 391 {
 392         enum mlxsw_reg_svfa_mt mt;
 393
 394         if (!list_empty(&mlxsw_sp_port->vports_list))
 395                 mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
 396         else
 397                 mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
 398
 399         return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, fid, fid);
 400 }
 401
 402 static int mlxsw_sp_port_fid_unmap(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
 403 {
 404         enum mlxsw_reg_svfa_mt mt;
 405
 406         if (list_empty(&mlxsw_sp_port->vports_list))
 407                 return 0;
 408
 409         mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
 410         return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, fid, fid);
 411 }
 412
 413 static int mlxsw_sp_port_add_vids(struct net_device *dev, u16 vid_begin,
 414                                   u16 vid_end)
 415 {
 416         u16 vid;
 417         int err;
 418
 419         for (vid = vid_begin; vid <= vid_end; vid++) {
 420                 err = mlxsw_sp_port_add_vid(dev, 0, vid);
 421                 if (err)
 422                         goto err_port_add_vid;
 423         }
 424         return 0;
 425
 426 err_port_add_vid:
 427         for (vid--; vid >= vid_begin; vid--)
 428                 mlxsw_sp_port_kill_vid(dev, 0, vid);
 429         return err;
 430 }
 431
 432 static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
 433                                      u16 vid_begin, u16 vid_end, bool is_member,
 434                                      bool untagged)
 435 {
 436         u16 vid, vid_e;
 437         int err;
 438
 439         for (vid = vid_begin; vid <= vid_end;
 440              vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
 441                 vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
 442                             vid_end);
 443
 444                 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
 445                                              is_member, untagged);
 446                 if (err)
 447                         return err;
 448         }
 449
 450         return 0;
 451 }
 452
 453 static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 454                                      u16 vid_begin, u16 vid_end,
 455                                      bool flag_untagged, bool flag_pvid)
 456 {
 457         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 458         struct net_device *dev = mlxsw_sp_port->dev;
 459         u16 vid, last_visited_vid, old_pvid;
 460         enum mlxsw_reg_svfa_mt mt;
 461         int err;
 462
 463         /* In case this is invoked with BRIDGE_FLAGS_SELF and port is
 464          * not bridged, then packets ingressing through the port with
 465          * the specified VIDs will be directed to CPU.
 466          */
 467         if (!mlxsw_sp_port->bridged)
 468                 return mlxsw_sp_port_add_vids(dev, vid_begin, vid_end);
 469
 470         for (vid = vid_begin; vid <= vid_end; vid++) {
 471                 if (!test_bit(vid, mlxsw_sp->active_fids)) {
 472                         err = mlxsw_sp_fid_create(mlxsw_sp, vid);
 473                         if (err) {
 474                                 netdev_err(dev, "Failed to create FID=%d\n",
 475                                            vid);
 476                                 return err;
 477                         }
 478
 479                         /* When creating a FID, we set a VID to FID mapping
 480                          * regardless of the port's mode.
 481                          */
 482                         mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
 483                         err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt,
 484                                                            true, vid, vid);
 485                         if (err) {
 486                                 netdev_err(dev, "Failed to create FID=VID=%d mapping\n",
 487                                            vid);
 488                                 goto err_port_vid_to_fid_set;
 489                         }
 490                 }
 491         }
 492
 493         /* Set FID mapping according to port's mode */
 494         for (vid = vid_begin; vid <= vid_end; vid++) {
 495                 err = mlxsw_sp_port_fid_map(mlxsw_sp_port, vid);
 496                 if (err) {
 497                         netdev_err(dev, "Failed to map FID=%d", vid);
 498                         last_visited_vid = --vid;
 499                         goto err_port_fid_map;
 500                 }
 501         }
 502
 503         err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
 504                                         true, false);
 505         if (err) {
 506                 netdev_err(dev, "Failed to configure flooding\n");
 507                 goto err_port_flood_set;
 508         }
 509
 510         err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
 511                                         true, flag_untagged);
 512         if (err) {
 513                 netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
 514                            vid_end);
 515                 goto err_port_vlans_set;
 516         }
 517
 518         old_pvid = mlxsw_sp_port->pvid;
 519         if (flag_pvid && old_pvid != vid_begin) {
 520                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
 521                 if (err) {
 522                         netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
 523                         goto err_port_pvid_set;
 524                 }
 525                 mlxsw_sp_port->pvid = vid_begin;
 526         }
 527
 528         /* Changing activity bits only if HW operation succeded */
 529         for (vid = vid_begin; vid <= vid_end; vid++)
 530                 set_bit(vid, mlxsw_sp_port->active_vlans);
 531
 532         /* STP state change must be done after we set active VLANs */
 533         err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
 534                                           mlxsw_sp_port->stp_state);
 535         if (err) {
 536                 netdev_err(dev, "Failed to set STP state\n");
 537                 goto err_port_stp_state_set;
 538         }
 539
 540         return 0;
 541
 542 err_port_vid_to_fid_set:
 543         mlxsw_sp_fid_destroy(mlxsw_sp, vid);
 544         return err;
 545
 546 err_port_stp_state_set:
 547         for (vid = vid_begin; vid <= vid_end; vid++)
 548                 clear_bit(vid, mlxsw_sp_port->active_vlans);
 549         if (old_pvid != mlxsw_sp_port->pvid)
 550                 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
 551 err_port_pvid_set:
 552         __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
 553                                   false);
 554 err_port_vlans_set:
 555         __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, false,
 556                                   false);
 557 err_port_flood_set:
 558         last_visited_vid = vid_end;
 559 err_port_fid_map:
 560         for (vid = last_visited_vid; vid >= vid_begin; vid--)
 561                 mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
 562         return err;
 563 }
 564
 565 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 566                                    const struct switchdev_obj_port_vlan *vlan,
 567                                    struct switchdev_trans *trans)
 568 {
 569         bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 570         bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 571
 572         if (switchdev_trans_ph_prepare(trans))
 573                 return 0;
 574
 575         return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
 576                                          vlan->vid_begin, vlan->vid_end,
 577                                          flag_untagged, flag_pvid);
 578 }
 579
 580 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
 581 {
 582         return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
 583                          MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
 584 }
 585
 586 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
 587 {
 588         return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
 589                         MLXSW_REG_SFD_OP_WRITE_REMOVE;
 590 }
 591
 592 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp_port *mlxsw_sp_port,
 593                                    const char *mac, u16 fid, bool adding,
 594                                    bool dynamic)
 595 {
 596         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 597         char *sfd_pl;
 598         int err;
 599
 600         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 601         if (!sfd_pl)
 602                 return -ENOMEM;
 603
 604         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 605         mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
 606                               mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
 607                               mlxsw_sp_port->local_port);
 608         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 609         kfree(sfd_pl);
 610
 611         return err;
 612 }
 613
 614 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
 615                                        const char *mac, u16 fid, u16 lag_vid,
 616                                        bool adding, bool dynamic)
 617 {
 618         char *sfd_pl;
 619         int err;
 620
 621         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 622         if (!sfd_pl)
 623                 return -ENOMEM;
 624
 625         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 626         mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
 627                                   mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
 628                                   lag_vid, lag_id);
 629         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 630         kfree(sfd_pl);
 631
 632         return err;
 633 }
 634
 635 static int
 636 mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
 637                              const struct switchdev_obj_port_fdb *fdb,
 638                              struct switchdev_trans *trans)
 639 {
 640         u16 fid = fdb->vid;
 641         u16 lag_vid = 0;
 642
 643         if (switchdev_trans_ph_prepare(trans))
 644                 return 0;
 645
 646         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 647                 u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
 648
 649                 fid = mlxsw_sp_vfid_to_fid(vfid);
 650                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 651         }
 652
 653         if (!fid)
 654                 fid = mlxsw_sp_port->pvid;
 655
 656         if (!mlxsw_sp_port->lagged)
 657                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port,
 658                                                fdb->addr, fid, true, false);
 659         else
 660                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
 661                                                    mlxsw_sp_port->lag_id,
 662                                                    fdb->addr, fid, lag_vid,
 663                                                    true, false);
 664 }
 665
 666 static int mlxsw_sp_port_obj_add(struct net_device *dev,
 667                                  const struct switchdev_obj *obj,
 668                                  struct switchdev_trans *trans)
 669 {
 670         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 671         int err = 0;
 672
 673         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
 674         if (!mlxsw_sp_port)
 675                 return -EINVAL;
 676
 677         switch (obj->id) {
 678         case SWITCHDEV_OBJ_ID_PORT_VLAN:
 679                 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
 680                         return 0;
 681
 682                 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
 683                                               SWITCHDEV_OBJ_PORT_VLAN(obj),
 684                                               trans);
 685                 break;
 686         case SWITCHDEV_OBJ_ID_PORT_FDB:
 687                 err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
 688                                                    SWITCHDEV_OBJ_PORT_FDB(obj),
 689                                                    trans);
 690                 break;
 691         default:
 692                 err = -EOPNOTSUPP;
 693                 break;
 694         }
 695
 696         return err;
 697 }
 698
 699 static int mlxsw_sp_port_kill_vids(struct net_device *dev, u16 vid_begin,
 700                                    u16 vid_end)
 701 {
 702         u16 vid;
 703         int err;
 704
 705         for (vid = vid_begin; vid <= vid_end; vid++) {
 706                 err = mlxsw_sp_port_kill_vid(dev, 0, vid);
 707                 if (err)
 708                         return err;
 709         }
 710
 711         return 0;
 712 }
 713
 714 static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
 715                                      u16 vid_begin, u16 vid_end, bool init)
 716 {
 717         struct net_device *dev = mlxsw_sp_port->dev;
 718         u16 vid, pvid;
 719         int err;
 720
 721         /* In case this is invoked with BRIDGE_FLAGS_SELF and port is
 722          * not bridged, then prevent packets ingressing through the
 723          * port with the specified VIDs from being trapped to CPU.
 724          */
 725         if (!init && !mlxsw_sp_port->bridged)
 726                 return mlxsw_sp_port_kill_vids(dev, vid_begin, vid_end);
 727
 728         err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
 729                                         false, false);
 730         if (err) {
 731                 netdev_err(dev, "Unable to del VIDs %d-%d\n", vid_begin,
 732                            vid_end);
 733                 return err;
 734         }
 735
 736         pvid = mlxsw_sp_port->pvid;
 737         if (pvid >= vid_begin && pvid <= vid_end && pvid != 1) {
 738                 /* Default VLAN is always 1 */
 739                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
 740                 if (err) {
 741                         netdev_err(dev, "Unable to del PVID %d\n", pvid);
 742                         return err;
 743                 }
 744                 mlxsw_sp_port->pvid = 1;
 745         }
 746
 747         if (init)
 748                 goto out;
 749
 750         err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
 751                                         false, false);
 752         if (err) {
 753                 netdev_err(dev, "Failed to clear flooding\n");
 754                 return err;
 755         }
 756
 757         for (vid = vid_begin; vid <= vid_end; vid++) {
 758                 /* Remove FID mapping in case of Virtual mode */
 759                 err = mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
 760                 if (err) {
 761                         netdev_err(dev, "Failed to unmap FID=%d", vid);
 762                         return err;
 763                 }
 764         }
 765
 766 out:
 767         /* Changing activity bits only if HW operation succeded */
 768         for (vid = vid_begin; vid <= vid_end; vid++)
 769                 clear_bit(vid, mlxsw_sp_port->active_vlans);
 770
 771         return 0;
 772 }
 773
 774 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
 775                                    const struct switchdev_obj_port_vlan *vlan)
 776 {
 777         return __mlxsw_sp_port_vlans_del(mlxsw_sp_port,
 778                                          vlan->vid_begin, vlan->vid_end, false);
 779 }
 780
 781 static int
 782 mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
 783                              const struct switchdev_obj_port_fdb *fdb)
 784 {
 785         u16 fid = fdb->vid;
 786         u16 lag_vid = 0;
 787
 788         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 789                 u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
 790
 791                 fid = mlxsw_sp_vfid_to_fid(vfid);
 792                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 793         }
 794
 795         if (!mlxsw_sp_port->lagged)
 796                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port,
 797                                                fdb->addr, fid,
 798                                                false, false);
 799         else
 800                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
 801                                                    mlxsw_sp_port->lag_id,
 802                                                    fdb->addr, fid, lag_vid,
 803                                                    false, false);
 804 }
 805
 806 static int mlxsw_sp_port_obj_del(struct net_device *dev,
 807                                  const struct switchdev_obj *obj)
 808 {
 809         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 810         int err = 0;
 811
 812         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
 813         if (!mlxsw_sp_port)
 814                 return -EINVAL;
 815
 816         switch (obj->id) {
 817         case SWITCHDEV_OBJ_ID_PORT_VLAN:
 818                 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
 819                         return 0;
 820
 821                 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
 822                                               SWITCHDEV_OBJ_PORT_VLAN(obj));
 823                 break;
 824         case SWITCHDEV_OBJ_ID_PORT_FDB:
 825                 err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
 826                                                    SWITCHDEV_OBJ_PORT_FDB(obj));
 827                 break;
 828         default:
 829                 err = -EOPNOTSUPP;
 830                 break;
 831         }
 832
 833         return err;
 834 }
 835
 836 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
 837                                                    u16 lag_id)
 838 {
 839         struct mlxsw_sp_port *mlxsw_sp_port;
 840         int i;
 841
 842         for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
 843                 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
 844                 if (mlxsw_sp_port)
 845                         return mlxsw_sp_port;
 846         }
 847         return NULL;
 848 }
 849
 850 static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
 851                                   struct switchdev_obj_port_fdb *fdb,
 852                                   switchdev_obj_dump_cb_t *cb)
 853 {
 854         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 855         u16 vport_vid = 0, vport_fid = 0;
 856         char *sfd_pl;
 857         char mac[ETH_ALEN];
 858         u16 fid;
 859         u8 local_port;
 860         u16 lag_id;
 861         u8 num_rec;
 862         int stored_err = 0;
 863         int i;
 864         int err;
 865
 866         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 867         if (!sfd_pl)
 868                 return -ENOMEM;
 869
 870         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 871                 u16 tmp;
 872
 873                 tmp = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
 874                 vport_fid = mlxsw_sp_vfid_to_fid(tmp);
 875                 vport_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 876         }
 877
 878         mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
 879         do {
 880                 mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
 881                 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 882                 if (err)
 883                         goto out;
 884
 885                 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
 886
 887                 /* Even in case of error, we have to run the dump to the end
 888                  * so the session in firmware is finished.
 889                  */
 890                 if (stored_err)
 891                         continue;
 892
 893                 for (i = 0; i < num_rec; i++) {
 894                         switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
 895                         case MLXSW_REG_SFD_REC_TYPE_UNICAST:
 896                                 mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
 897                                                         &local_port);
 898                                 if (local_port == mlxsw_sp_port->local_port) {
 899                                         if (vport_fid && vport_fid != fid)
 900                                                 continue;
 901                                         else if (vport_fid)
 902                                                 fdb->vid = vport_vid;
 903                                         else
 904                                                 fdb->vid = fid;
 905                                         ether_addr_copy(fdb->addr, mac);
 906                                         fdb->ndm_state = NUD_REACHABLE;
 907                                         err = cb(&fdb->obj);
 908                                         if (err)
 909                                                 stored_err = err;
 910                                 }
 911                                 break;
 912                         case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
 913                                 mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
 914                                                             mac, &fid, &lag_id);
 915                                 if (mlxsw_sp_port ==
 916                                     mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id)) {
 917                                         if (vport_fid && vport_fid != fid)
 918                                                 continue;
 919                                         else if (vport_fid)
 920                                                 fdb->vid = vport_vid;
 921                                         else
 922                                                 fdb->vid = fid;
 923                                         ether_addr_copy(fdb->addr, mac);
 924                                         fdb->ndm_state = NUD_REACHABLE;
 925                                         err = cb(&fdb->obj);
 926                                         if (err)
 927                                                 stored_err = err;
 928                                 }
 929                                 break;
 930                         }
 931                 }
 932         } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);
 933
 934 out:
 935         kfree(sfd_pl);
 936         return stored_err ? stored_err : err;
 937 }
 938
 939 static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
 940                                    struct switchdev_obj_port_vlan *vlan,
 941                                    switchdev_obj_dump_cb_t *cb)
 942 {
 943         u16 vid;
 944         int err = 0;
 945
 946         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 947                 vlan->flags = 0;
 948                 vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 949                 vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 950                 return cb(&vlan->obj);
 951         }
 952
 953         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 954                 vlan->flags = 0;
 955                 if (vid == mlxsw_sp_port->pvid)
 956                         vlan->flags |= BRIDGE_VLAN_INFO_PVID;
 957                 vlan->vid_begin = vid;
 958                 vlan->vid_end = vid;
 959                 err = cb(&vlan->obj);
 960                 if (err)
 961                         break;
 962         }
 963         return err;
 964 }
 965
 966 static int mlxsw_sp_port_obj_dump(struct net_device *dev,
 967                                   struct switchdev_obj *obj,
 968                                   switchdev_obj_dump_cb_t *cb)
 969 {
 970         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 971         int err = 0;
 972
 973         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
 974         if (!mlxsw_sp_port)
 975                 return -EINVAL;
 976
 977         switch (obj->id) {
 978         case SWITCHDEV_OBJ_ID_PORT_VLAN:
 979                 err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
 980                                               SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
 981                 break;
 982         case SWITCHDEV_OBJ_ID_PORT_FDB:
 983                 err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
 984                                              SWITCHDEV_OBJ_PORT_FDB(obj), cb);
 985                 break;
 986         default:
 987                 err = -EOPNOTSUPP;
 988                 break;
 989         }
 990
 991         return err;
 992 }
 993
 994 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
 995         .switchdev_port_attr_get        = mlxsw_sp_port_attr_get,
 996         .switchdev_port_attr_set        = mlxsw_sp_port_attr_set,
 997         .switchdev_port_obj_add         = mlxsw_sp_port_obj_add,
 998         .switchdev_port_obj_del         = mlxsw_sp_port_obj_del,
 999         .switchdev_port_obj_dump        = mlxsw_sp_port_obj_dump,
1000 };
1001
1002 static void mlxsw_sp_fdb_call_notifiers(bool learning, bool learning_sync,
1003                                         bool adding, char *mac, u16 vid,
1004                                         struct net_device *dev)
1005 {
1006         struct switchdev_notifier_fdb_info info;
1007         unsigned long notifier_type;
1008
1009         if (learning && learning_sync) {
1010                 info.addr = mac;
1011                 info.vid = vid;
1012                 notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
1013                 call_switchdev_notifiers(notifier_type, dev, &info.info);
1014         }
1015 }
1016
1017 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1018                                             char *sfn_pl, int rec_index,
1019                                             bool adding)
1020 {
1021         struct mlxsw_sp_port *mlxsw_sp_port;
1022         char mac[ETH_ALEN];
1023         u8 local_port;
1024         u16 vid, fid;
1025         int err;
1026
1027         mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1028         mlxsw_sp_port = mlxsw_sp->ports[local_port];
1029         if (!mlxsw_sp_port) {
1030                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1031                 return;
1032         }
1033
1034         if (mlxsw_sp_fid_is_vfid(fid)) {
1035                 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
1036                 struct mlxsw_sp_port *mlxsw_sp_vport;
1037
1038                 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port,
1039                                                                   vfid);
1040                 if (!mlxsw_sp_vport) {
1041                         netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1042                         return;
1043                 }
1044
1045                 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1046                 /* Override the physical port with the vPort. */
1047                 mlxsw_sp_port = mlxsw_sp_vport;
1048         } else {
1049                 vid = fid;
1050         }
1051
1052         err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port, mac, fid,
1053                                       adding && mlxsw_sp_port->learning, true);
1054         if (err) {
1055                 if (net_ratelimit())
1056                         netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1057                 return;
1058         }
1059
1060         mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning,
1061                                     mlxsw_sp_port->learning_sync,
1062                                     adding, mac, vid, mlxsw_sp_port->dev);
1063 }
1064
1065 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
1066                                                 char *sfn_pl, int rec_index,
1067                                                 bool adding)
1068 {
1069         struct mlxsw_sp_port *mlxsw_sp_port;
1070         char mac[ETH_ALEN];
1071         u16 lag_vid = 0;
1072         u16 lag_id;
1073         u16 vid, fid;
1074         int err;
1075
1076         mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1077         mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1078         if (!mlxsw_sp_port) {
1079                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1080                 return;
1081         }
1082
1083         if (mlxsw_sp_fid_is_vfid(fid)) {
1084                 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
1085                 struct mlxsw_sp_port *mlxsw_sp_vport;
1086
1087                 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port,
1088                                                                   vfid);
1089                 if (!mlxsw_sp_vport) {
1090                         netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1091                         return;
1092                 }
1093
1094                 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1095                 lag_vid = vid;
1096                 /* Override the physical port with the vPort. */
1097                 mlxsw_sp_port = mlxsw_sp_vport;
1098         } else {
1099                 vid = fid;
1100         }
1101
1102         err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1103                                           adding && mlxsw_sp_port->learning,
1104                                           true);
1105         if (err) {
1106                 if (net_ratelimit())
1107                         netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1108                 return;
1109         }
1110
1111         mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning,
1112                                     mlxsw_sp_port->learning_sync,
1113                                     adding, mac, vid,
1114                                     mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev);
1115 }
1116
1117 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
1118                                             char *sfn_pl, int rec_index)
1119 {
1120         switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
1121         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
1122                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1123                                                 rec_index, true);
1124                 break;
1125         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
1126                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1127                                                 rec_index, false);
1128                 break;
1129         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
1130                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1131                                                     rec_index, true);
1132                 break;
1133         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
1134                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1135                                                     rec_index, false);
1136                 break;
1137         }
1138 }
1139
1140 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
1141 {
1142         schedule_delayed_work(&mlxsw_sp->fdb_notify.dw,
1143                               msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
1144 }
1145
1146 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
1147 {
1148         struct mlxsw_sp *mlxsw_sp;
1149         char *sfn_pl;
1150         u8 num_rec;
1151         int i;
1152         int err;
1153
1154         sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
1155         if (!sfn_pl)
1156                 return;
1157
1158         mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
1159
1160         do {
1161                 mlxsw_reg_sfn_pack(sfn_pl);
1162                 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
1163                 if (err) {
1164                         dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
1165                         break;
1166                 }
1167                 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
1168                 for (i = 0; i < num_rec; i++)
1169                         mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
1170
1171         } while (num_rec);
1172
1173         kfree(sfn_pl);
1174         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1175 }
1176
1177 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
1178 {
1179         int err;
1180
1181         err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
1182         if (err) {
1183                 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
1184                 return err;
1185         }
1186         INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
1187         mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
1188         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1189         return 0;
1190 }
1191
1192 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
1193 {
1194         cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
1195 }
1196
1197 static void mlxsw_sp_fids_fini(struct mlxsw_sp *mlxsw_sp)
1198 {
1199         u16 fid;
1200
1201         for_each_set_bit(fid, mlxsw_sp->active_fids, VLAN_N_VID)
1202                 mlxsw_sp_fid_destroy(mlxsw_sp, fid);
1203 }
1204
1205 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
1206 {
1207         return mlxsw_sp_fdb_init(mlxsw_sp);
1208 }
1209
1210 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
1211 {
1212         mlxsw_sp_fdb_fini(mlxsw_sp);
1213         mlxsw_sp_fids_fini(mlxsw_sp);
1214 }
1215
1216 int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port)
1217 {
1218         struct net_device *dev = mlxsw_sp_port->dev;
1219         int err;
1220
1221         /* Allow only untagged packets to ingress and tag them internally
1222          * with VID 1.
1223          */
1224         mlxsw_sp_port->pvid = 1;
1225         err = __mlxsw_sp_port_vlans_del(mlxsw_sp_port, 0, VLAN_N_VID - 1,
1226                                         true);
1227         if (err) {
1228                 netdev_err(dev, "Unable to init VLANs\n");
1229                 return err;
1230         }
1231
1232         /* Add implicit VLAN interface in the device, so that untagged
1233          * packets will be classified to the default vFID.
1234          */
1235         err = mlxsw_sp_port_add_vid(dev, 0, 1);
1236         if (err)
1237                 netdev_err(dev, "Failed to configure default vFID\n");
1238
1239         return err;
1240 }
1241
1242 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
1243 {
1244         mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
1245 }
1246
1247 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
1248 {
1249 }