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