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 set,
 171                                      bool only_uc)
 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, set);
 191         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
 192         if (err)
 193                 goto buffer_out;
 194
 195         /* Flooding control allows one to decide whether a given port will
 196          * flood unicast traffic for which there is no FDB entry.
 197          */
 198         if (only_uc)
 199                 goto buffer_out;
 200
 201         mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin,
 202                             table_type, range, local_port, set);
 203         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
 204         if (err)
 205                 goto err_flood_bm_set;
 206         else
 207                 goto buffer_out;
 208
 209 err_flood_bm_set:
 210         mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
 211                             table_type, range, local_port, !set);
 212         mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
 213 buffer_out:
 214         kfree(sftr_pl);
 215         return err;
 216 }
 217
 218 static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
 219                                       bool set)
 220 {
 221         struct net_device *dev = mlxsw_sp_port->dev;
 222         u16 vid, last_visited_vid;
 223         int err;
 224
 225         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 226                 u16 fid = mlxsw_sp_vport_fid_get(mlxsw_sp_port)->fid;
 227                 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
 228
 229                 return  __mlxsw_sp_port_flood_set(mlxsw_sp_port, vfid, vfid,
 230                                                   set, true);
 231         }
 232
 233         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 234                 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set,
 235                                                 true);
 236                 if (err) {
 237                         last_visited_vid = vid;
 238                         goto err_port_flood_set;
 239                 }
 240         }
 241
 242         return 0;
 243
 244 err_port_flood_set:
 245         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
 246                 __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true);
 247         netdev_err(dev, "Failed to configure unicast flooding\n");
 248         return err;
 249 }
 250
 251 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
 252                              bool set)
 253 {
 254         u16 vfid;
 255
 256         /* In case of vFIDs, index into the flooding table is relative to
 257          * the start of the vFIDs range.
 258          */
 259         vfid = mlxsw_sp_fid_to_vfid(fid);
 260         return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set,
 261                                          false);
 262 }
 263
 264 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
 265                                            struct switchdev_trans *trans,
 266                                            unsigned long brport_flags)
 267 {
 268         unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
 269         bool set;
 270         int err;
 271
 272         if (!mlxsw_sp_port->bridged)
 273                 return -EINVAL;
 274
 275         if (switchdev_trans_ph_prepare(trans))
 276                 return 0;
 277
 278         if ((uc_flood ^ brport_flags) & BR_FLOOD) {
 279                 set = mlxsw_sp_port->uc_flood ? false : true;
 280                 err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port, set);
 281                 if (err)
 282                         return err;
 283         }
 284
 285         mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
 286         mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
 287         mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
 288
 289         return 0;
 290 }
 291
 292 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
 293 {
 294         char sfdat_pl[MLXSW_REG_SFDAT_LEN];
 295         int err;
 296
 297         mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
 298         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
 299         if (err)
 300                 return err;
 301         mlxsw_sp->ageing_time = ageing_time;
 302         return 0;
 303 }
 304
 305 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
 306                                             struct switchdev_trans *trans,
 307                                             unsigned long ageing_clock_t)
 308 {
 309         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 310         unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
 311         u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
 312
 313         if (switchdev_trans_ph_prepare(trans)) {
 314                 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
 315                     ageing_time > MLXSW_SP_MAX_AGEING_TIME)
 316                         return -ERANGE;
 317                 else
 318                         return 0;
 319         }
 320
 321         return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
 322 }
 323
 324 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
 325                                           struct switchdev_trans *trans,
 326                                           struct net_device *orig_dev,
 327                                           bool vlan_enabled)
 328 {
 329         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 330
 331         /* SWITCHDEV_TRANS_PREPARE phase */
 332         if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
 333                 netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
 334                 return -EINVAL;
 335         }
 336
 337         return 0;
 338 }
 339
 340 static int mlxsw_sp_port_attr_set(struct net_device *dev,
 341                                   const struct switchdev_attr *attr,
 342                                   struct switchdev_trans *trans)
 343 {
 344         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 345         int err = 0;
 346
 347         mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
 348         if (!mlxsw_sp_port)
 349                 return -EINVAL;
 350
 351         switch (attr->id) {
 352         case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
 353                 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
 354                                                        attr->u.stp_state);
 355                 break;
 356         case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
 357                 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
 358                                                       attr->u.brport_flags);
 359                 break;
 360         case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
 361                 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
 362                                                        attr->u.ageing_time);
 363                 break;
 364         case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
 365                 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
 366                                                      attr->orig_dev,
 367                                                      attr->u.vlan_filtering);
 368                 break;
 369         default:
 370                 err = -EOPNOTSUPP;
 371                 break;
 372         }
 373
 374         return err;
 375 }
 376
 377 static struct mlxsw_sp_fid *mlxsw_sp_fid_find(struct mlxsw_sp *mlxsw_sp,
 378                                               u16 fid)
 379 {
 380         struct mlxsw_sp_fid *f;
 381
 382         list_for_each_entry(f, &mlxsw_sp->fids, list)
 383                 if (f->fid == fid)
 384                         return f;
 385
 386         return NULL;
 387 }
 388
 389 static int mlxsw_sp_fid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
 390 {
 391         char sfmr_pl[MLXSW_REG_SFMR_LEN];
 392
 393         mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, fid);
 394         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
 395 }
 396
 397 static int mlxsw_sp_fid_map(struct mlxsw_sp *mlxsw_sp, u16 fid, bool valid)
 398 {
 399         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
 400         char svfa_pl[MLXSW_REG_SVFA_LEN];
 401
 402         mlxsw_reg_svfa_pack(svfa_pl, 0, mt, valid, fid, fid);
 403         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
 404 }
 405
 406 static struct mlxsw_sp_fid *mlxsw_sp_fid_alloc(u16 fid)
 407 {
 408         struct mlxsw_sp_fid *f;
 409
 410         f = kzalloc(sizeof(*f), GFP_KERNEL);
 411         if (!f)
 412                 return NULL;
 413
 414         f->fid = fid;
 415
 416         return f;
 417 }
 418
 419 static struct mlxsw_sp_fid *mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp,
 420                                                 u16 fid)
 421 {
 422         struct mlxsw_sp_fid *f;
 423         int err;
 424
 425         err = mlxsw_sp_fid_op(mlxsw_sp, fid, true);
 426         if (err)
 427                 return ERR_PTR(err);
 428
 429         /* Although all the ports member in the FID might be using a
 430          * {Port, VID} to FID mapping, we create a global VID-to-FID
 431          * mapping. This allows a port to transition to VLAN mode,
 432          * knowing the global mapping exists.
 433          */
 434         err = mlxsw_sp_fid_map(mlxsw_sp, fid, true);
 435         if (err)
 436                 goto err_fid_map;
 437
 438         f = mlxsw_sp_fid_alloc(fid);
 439         if (!f) {
 440                 err = -ENOMEM;
 441                 goto err_allocate_fid;
 442         }
 443
 444         list_add(&f->list, &mlxsw_sp->fids);
 445
 446         return f;
 447
 448 err_allocate_fid:
 449         mlxsw_sp_fid_map(mlxsw_sp, fid, false);
 450 err_fid_map:
 451         mlxsw_sp_fid_op(mlxsw_sp, fid, false);
 452         return ERR_PTR(err);
 453 }
 454
 455 static void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp,
 456                                  struct mlxsw_sp_fid *f)
 457 {
 458         u16 fid = f->fid;
 459
 460         list_del(&f->list);
 461
 462         kfree(f);
 463
 464         mlxsw_sp_fid_op(mlxsw_sp, fid, false);
 465 }
 466
 467 static int __mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
 468                                     u16 fid)
 469 {
 470         struct mlxsw_sp_fid *f;
 471
 472         f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
 473         if (!f) {
 474                 f = mlxsw_sp_fid_create(mlxsw_sp_port->mlxsw_sp, fid);
 475                 if (IS_ERR(f))
 476                         return PTR_ERR(f);
 477         }
 478
 479         f->ref_count++;
 480
 481         netdev_dbg(mlxsw_sp_port->dev, "Joined FID=%d\n", fid);
 482
 483         return 0;
 484 }
 485
 486 static void __mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
 487                                       u16 fid)
 488 {
 489         struct mlxsw_sp_fid *f;
 490
 491         f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
 492         if (WARN_ON(!f))
 493                 return;
 494
 495         netdev_dbg(mlxsw_sp_port->dev, "Left FID=%d\n", fid);
 496
 497         mlxsw_sp_port_fdb_flush(mlxsw_sp_port, fid);
 498
 499         if (--f->ref_count == 0)
 500                 mlxsw_sp_fid_destroy(mlxsw_sp_port->mlxsw_sp, f);
 501 }
 502
 503 static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid,
 504                                  bool valid)
 505 {
 506         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
 507
 508         /* If port doesn't have vPorts, then it can use the global
 509          * VID-to-FID mapping.
 510          */
 511         if (list_empty(&mlxsw_sp_port->vports_list))
 512                 return 0;
 513
 514         return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, valid, fid, fid);
 515 }
 516
 517 static int mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
 518                                   u16 fid_begin, u16 fid_end)
 519 {
 520         int fid, err;
 521
 522         for (fid = fid_begin; fid <= fid_end; fid++) {
 523                 err = __mlxsw_sp_port_fid_join(mlxsw_sp_port, fid);
 524                 if (err)
 525                         goto err_port_fid_join;
 526         }
 527
 528         err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end,
 529                                         true, false);
 530         if (err)
 531                 goto err_port_flood_set;
 532
 533         for (fid = fid_begin; fid <= fid_end; fid++) {
 534                 err = mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, true);
 535                 if (err)
 536                         goto err_port_fid_map;
 537         }
 538
 539         return 0;
 540
 541 err_port_fid_map:
 542         for (fid--; fid >= fid_begin; fid--)
 543                 mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
 544         __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
 545                                   false);
 546 err_port_flood_set:
 547         fid = fid_end;
 548 err_port_fid_join:
 549         for (fid--; fid >= fid_begin; fid--)
 550                 __mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
 551         return err;
 552 }
 553
 554 static void mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
 555                                     u16 fid_begin, u16 fid_end)
 556 {
 557         int fid;
 558
 559         for (fid = fid_begin; fid <= fid_end; fid++)
 560                 mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
 561
 562         __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
 563                                   false);
 564
 565         for (fid = fid_begin; fid <= fid_end; fid++)
 566                 __mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
 567 }
 568
 569 static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
 570                                     u16 vid)
 571 {
 572         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 573         char spvid_pl[MLXSW_REG_SPVID_LEN];
 574
 575         mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
 576         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
 577 }
 578
 579 static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
 580                                             bool allow)
 581 {
 582         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 583         char spaft_pl[MLXSW_REG_SPAFT_LEN];
 584
 585         mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
 586         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
 587 }
 588
 589 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
 590 {
 591         struct net_device *dev = mlxsw_sp_port->dev;
 592         int err;
 593
 594         if (!vid) {
 595                 err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
 596                 if (err) {
 597                         netdev_err(dev, "Failed to disallow untagged traffic\n");
 598                         return err;
 599                 }
 600         } else {
 601                 err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
 602                 if (err) {
 603                         netdev_err(dev, "Failed to set PVID\n");
 604                         return err;
 605                 }
 606
 607                 /* Only allow if not already allowed. */
 608                 if (!mlxsw_sp_port->pvid) {
 609                         err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port,
 610                                                                true);
 611                         if (err) {
 612                                 netdev_err(dev, "Failed to allow untagged traffic\n");
 613                                 goto err_port_allow_untagged_set;
 614                         }
 615                 }
 616         }
 617
 618         mlxsw_sp_port->pvid = vid;
 619         return 0;
 620
 621 err_port_allow_untagged_set:
 622         __mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
 623         return err;
 624 }
 625
 626 static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
 627                                      u16 vid_begin, u16 vid_end, bool is_member,
 628                                      bool untagged)
 629 {
 630         u16 vid, vid_e;
 631         int err;
 632
 633         for (vid = vid_begin; vid <= vid_end;
 634              vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
 635                 vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
 636                             vid_end);
 637
 638                 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
 639                                              is_member, untagged);
 640                 if (err)
 641                         return err;
 642         }
 643
 644         return 0;
 645 }
 646
 647 static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 648                                      u16 vid_begin, u16 vid_end,
 649                                      bool flag_untagged, bool flag_pvid)
 650 {
 651         struct net_device *dev = mlxsw_sp_port->dev;
 652         u16 vid, old_pvid;
 653         int err;
 654
 655         if (!mlxsw_sp_port->bridged)
 656                 return -EINVAL;
 657
 658         err = mlxsw_sp_port_fid_join(mlxsw_sp_port, vid_begin, vid_end);
 659         if (err) {
 660                 netdev_err(dev, "Failed to join FIDs\n");
 661                 return err;
 662         }
 663
 664         err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
 665                                         true, flag_untagged);
 666         if (err) {
 667                 netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
 668                            vid_end);
 669                 goto err_port_vlans_set;
 670         }
 671
 672         old_pvid = mlxsw_sp_port->pvid;
 673         if (flag_pvid && old_pvid != vid_begin) {
 674                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
 675                 if (err) {
 676                         netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
 677                         goto err_port_pvid_set;
 678                 }
 679         } else if (!flag_pvid && old_pvid >= vid_begin && old_pvid <= vid_end) {
 680                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
 681                 if (err) {
 682                         netdev_err(dev, "Unable to del PVID\n");
 683                         goto err_port_pvid_set;
 684                 }
 685         }
 686
 687         /* Changing activity bits only if HW operation succeded */
 688         for (vid = vid_begin; vid <= vid_end; vid++) {
 689                 set_bit(vid, mlxsw_sp_port->active_vlans);
 690                 if (flag_untagged)
 691                         set_bit(vid, mlxsw_sp_port->untagged_vlans);
 692                 else
 693                         clear_bit(vid, mlxsw_sp_port->untagged_vlans);
 694         }
 695
 696         /* STP state change must be done after we set active VLANs */
 697         err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
 698                                           mlxsw_sp_port->stp_state);
 699         if (err) {
 700                 netdev_err(dev, "Failed to set STP state\n");
 701                 goto err_port_stp_state_set;
 702         }
 703
 704         return 0;
 705
 706 err_port_stp_state_set:
 707         for (vid = vid_begin; vid <= vid_end; vid++)
 708                 clear_bit(vid, mlxsw_sp_port->active_vlans);
 709         if (old_pvid != mlxsw_sp_port->pvid)
 710                 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
 711 err_port_pvid_set:
 712         __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
 713                                   false);
 714 err_port_vlans_set:
 715         mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
 716         return err;
 717 }
 718
 719 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
 720                                    const struct switchdev_obj_port_vlan *vlan,
 721                                    struct switchdev_trans *trans)
 722 {
 723         bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 724         bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 725
 726         if (switchdev_trans_ph_prepare(trans))
 727                 return 0;
 728
 729         return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
 730                                          vlan->vid_begin, vlan->vid_end,
 731                                          flag_untagged, flag_pvid);
 732 }
 733
 734 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
 735 {
 736         return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
 737                          MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
 738 }
 739
 740 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
 741 {
 742         return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
 743                         MLXSW_REG_SFD_OP_WRITE_REMOVE;
 744 }
 745
 746 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 747                                      const char *mac, u16 fid, bool adding,
 748                                      enum mlxsw_reg_sfd_rec_action action,
 749                                      bool dynamic)
 750 {
 751         char *sfd_pl;
 752         int err;
 753
 754         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 755         if (!sfd_pl)
 756                 return -ENOMEM;
 757
 758         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 759         mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
 760                               mac, fid, action, local_port);
 761         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 762         kfree(sfd_pl);
 763
 764         return err;
 765 }
 766
 767 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 768                                    const char *mac, u16 fid, bool adding,
 769                                    bool dynamic)
 770 {
 771         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
 772                                          MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
 773 }
 774
 775 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
 776                         bool adding)
 777 {
 778         return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
 779                                          MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
 780                                          false);
 781 }
 782
 783 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
 784                                        const char *mac, u16 fid, u16 lag_vid,
 785                                        bool adding, bool dynamic)
 786 {
 787         char *sfd_pl;
 788         int err;
 789
 790         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 791         if (!sfd_pl)
 792                 return -ENOMEM;
 793
 794         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 795         mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
 796                                   mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
 797                                   lag_vid, lag_id);
 798         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 799         kfree(sfd_pl);
 800
 801         return err;
 802 }
 803
 804 static int
 805 mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
 806                              const struct switchdev_obj_port_fdb *fdb,
 807                              struct switchdev_trans *trans)
 808 {
 809         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
 810         u16 lag_vid = 0;
 811
 812         if (switchdev_trans_ph_prepare(trans))
 813                 return 0;
 814
 815         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
 816                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
 817         }
 818
 819         if (!mlxsw_sp_port->lagged)
 820                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
 821                                                mlxsw_sp_port->local_port,
 822                                                fdb->addr, fid, true, false);
 823         else
 824                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
 825                                                    mlxsw_sp_port->lag_id,
 826                                                    fdb->addr, fid, lag_vid,
 827                                                    true, false);
 828 }
 829
 830 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
 831                                 u16 fid, u16 mid, bool adding)
 832 {
 833         char *sfd_pl;
 834         int err;
 835
 836         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
 837         if (!sfd_pl)
 838                 return -ENOMEM;
 839
 840         mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
 841         mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
 842                               MLXSW_REG_SFD_REC_ACTION_NOP, mid);
 843         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
 844         kfree(sfd_pl);
 845         return err;
 846 }
 847
 848 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid,
 849                                   bool add, bool clear_all_ports)
 850 {
 851         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 852         char *smid_pl;
 853         int err, i;
 854
 855         smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
 856         if (!smid_pl)
 857                 return -ENOMEM;
 858
 859         mlxsw_reg_smid_pack(smid_pl, mid, mlxsw_sp_port->local_port, add);
 860         if (clear_all_ports) {
 861                 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
 862                         if (mlxsw_sp->ports[i])
 863                                 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
 864         }
 865         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
 866         kfree(smid_pl);
 867         return err;
 868 }
 869
 870 static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp *mlxsw_sp,
 871                                               const unsigned char *addr,
 872                                               u16 vid)
 873 {
 874         struct mlxsw_sp_mid *mid;
 875
 876         list_for_each_entry(mid, &mlxsw_sp->br_mids.list, list) {
 877                 if (ether_addr_equal(mid->addr, addr) && mid->vid == vid)
 878                         return mid;
 879         }
 880         return NULL;
 881 }
 882
 883 static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
 884                                                 const unsigned char *addr,
 885                                                 u16 vid)
 886 {
 887         struct mlxsw_sp_mid *mid;
 888         u16 mid_idx;
 889
 890         mid_idx = find_first_zero_bit(mlxsw_sp->br_mids.mapped,
 891                                       MLXSW_SP_MID_MAX);
 892         if (mid_idx == MLXSW_SP_MID_MAX)
 893                 return NULL;
 894
 895         mid = kzalloc(sizeof(*mid), GFP_KERNEL);
 896         if (!mid)
 897                 return NULL;
 898
 899         set_bit(mid_idx, mlxsw_sp->br_mids.mapped);
 900         ether_addr_copy(mid->addr, addr);
 901         mid->vid = vid;
 902         mid->mid = mid_idx;
 903         mid->ref_count = 0;
 904         list_add_tail(&mid->list, &mlxsw_sp->br_mids.list);
 905
 906         return mid;
 907 }
 908
 909 static int __mlxsw_sp_mc_dec_ref(struct mlxsw_sp *mlxsw_sp,
 910                                  struct mlxsw_sp_mid *mid)
 911 {
 912         if (--mid->ref_count == 0) {
 913                 list_del(&mid->list);
 914                 clear_bit(mid->mid, mlxsw_sp->br_mids.mapped);
 915                 kfree(mid);
 916                 return 1;
 917         }
 918         return 0;
 919 }
 920
 921 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
 922                                  const struct switchdev_obj_port_mdb *mdb,
 923                                  struct switchdev_trans *trans)
 924 {
 925         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 926         struct net_device *dev = mlxsw_sp_port->dev;
 927         struct mlxsw_sp_mid *mid;
 928         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
 929         int err = 0;
 930
 931         if (switchdev_trans_ph_prepare(trans))
 932                 return 0;
 933
 934         mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, mdb->vid);
 935         if (!mid) {
 936                 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, mdb->addr, mdb->vid);
 937                 if (!mid) {
 938                         netdev_err(dev, "Unable to allocate MC group\n");
 939                         return -ENOMEM;
 940                 }
 941         }
 942         mid->ref_count++;
 943
 944         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true,
 945                                      mid->ref_count == 1);
 946         if (err) {
 947                 netdev_err(dev, "Unable to set SMID\n");
 948                 goto err_out;
 949         }
 950
 951         if (mid->ref_count == 1) {
 952                 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid->mid,
 953                                            true);
 954                 if (err) {
 955                         netdev_err(dev, "Unable to set MC SFD\n");
 956                         goto err_out;
 957                 }
 958         }
 959
 960         return 0;
 961
 962 err_out:
 963         __mlxsw_sp_mc_dec_ref(mlxsw_sp, mid);
 964         return err;
 965 }
 966
 967 static int mlxsw_sp_port_obj_add(struct net_device *dev,
 968                                  const struct switchdev_obj *obj,
 969                                  struct switchdev_trans *trans)
 970 {
 971         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 972         int err = 0;
 973
 974         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
 975         if (!mlxsw_sp_port)
 976                 return -EINVAL;
 977
 978         switch (obj->id) {
 979         case SWITCHDEV_OBJ_ID_PORT_VLAN:
 980                 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
 981                         return 0;
 982
 983                 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
 984                                               SWITCHDEV_OBJ_PORT_VLAN(obj),
 985                                               trans);
 986                 break;
 987         case SWITCHDEV_OBJ_ID_IPV4_FIB:
 988                 err = mlxsw_sp_router_fib4_add(mlxsw_sp_port,
 989                                                SWITCHDEV_OBJ_IPV4_FIB(obj),
 990                                                trans);
 991                 break;
 992         case SWITCHDEV_OBJ_ID_PORT_FDB:
 993                 err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
 994                                                    SWITCHDEV_OBJ_PORT_FDB(obj),
 995                                                    trans);
 996                 break;
 997         case SWITCHDEV_OBJ_ID_PORT_MDB:
 998                 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
 999                                             SWITCHDEV_OBJ_PORT_MDB(obj),
1000                                             trans);
1001                 break;
1002         default:
1003                 err = -EOPNOTSUPP;
1004                 break;
1005         }
1006
1007         return err;
1008 }
1009
1010 static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1011                                      u16 vid_begin, u16 vid_end, bool init)
1012 {
1013         struct net_device *dev = mlxsw_sp_port->dev;
1014         u16 vid, pvid;
1015         int err;
1016
1017         if (!init && !mlxsw_sp_port->bridged)
1018                 return -EINVAL;
1019
1020         err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
1021                                         false, false);
1022         if (err) {
1023                 netdev_err(dev, "Unable to del VIDs %d-%d\n", vid_begin,
1024                            vid_end);
1025                 return err;
1026         }
1027
1028         if (init)
1029                 goto out;
1030
1031         pvid = mlxsw_sp_port->pvid;
1032         if (pvid >= vid_begin && pvid <= vid_end) {
1033                 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
1034                 if (err) {
1035                         netdev_err(dev, "Unable to del PVID %d\n", pvid);
1036                         return err;
1037                 }
1038         }
1039
1040         mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
1041
1042 out:
1043         /* Changing activity bits only if HW operation succeded */
1044         for (vid = vid_begin; vid <= vid_end; vid++)
1045                 clear_bit(vid, mlxsw_sp_port->active_vlans);
1046
1047         return 0;
1048 }
1049
1050 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1051                                    const struct switchdev_obj_port_vlan *vlan)
1052 {
1053         return __mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1054                                          vlan->vid_begin, vlan->vid_end, false);
1055 }
1056
1057 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port)
1058 {
1059         u16 vid;
1060
1061         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
1062                 __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vid, vid, false);
1063 }
1064
1065 static int
1066 mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
1067                              const struct switchdev_obj_port_fdb *fdb)
1068 {
1069         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
1070         u16 lag_vid = 0;
1071
1072         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1073                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1074         }
1075
1076         if (!mlxsw_sp_port->lagged)
1077                 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
1078                                                mlxsw_sp_port->local_port,
1079                                                fdb->addr, fid,
1080                                                false, false);
1081         else
1082                 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
1083                                                    mlxsw_sp_port->lag_id,
1084                                                    fdb->addr, fid, lag_vid,
1085                                                    false, false);
1086 }
1087
1088 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1089                                  const struct switchdev_obj_port_mdb *mdb)
1090 {
1091         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1092         struct net_device *dev = mlxsw_sp_port->dev;
1093         struct mlxsw_sp_mid *mid;
1094         u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
1095         u16 mid_idx;
1096         int err = 0;
1097
1098         mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, mdb->vid);
1099         if (!mid) {
1100                 netdev_err(dev, "Unable to remove port from MC DB\n");
1101                 return -EINVAL;
1102         }
1103
1104         err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false, false);
1105         if (err)
1106                 netdev_err(dev, "Unable to remove port from SMID\n");
1107
1108         mid_idx = mid->mid;
1109         if (__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid)) {
1110                 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid_idx,
1111                                            false);
1112                 if (err)
1113                         netdev_err(dev, "Unable to remove MC SFD\n");
1114         }
1115
1116         return err;
1117 }
1118
1119 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1120                                  const struct switchdev_obj *obj)
1121 {
1122         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1123         int err = 0;
1124
1125         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1126         if (!mlxsw_sp_port)
1127                 return -EINVAL;
1128
1129         switch (obj->id) {
1130         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1131                 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
1132                         return 0;
1133
1134                 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1135                                               SWITCHDEV_OBJ_PORT_VLAN(obj));
1136                 break;
1137         case SWITCHDEV_OBJ_ID_IPV4_FIB:
1138                 err = mlxsw_sp_router_fib4_del(mlxsw_sp_port,
1139                                                SWITCHDEV_OBJ_IPV4_FIB(obj));
1140                 break;
1141         case SWITCHDEV_OBJ_ID_PORT_FDB:
1142                 err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
1143                                                    SWITCHDEV_OBJ_PORT_FDB(obj));
1144                 break;
1145         case SWITCHDEV_OBJ_ID_PORT_MDB:
1146                 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1147                                             SWITCHDEV_OBJ_PORT_MDB(obj));
1148                 break;
1149         default:
1150                 err = -EOPNOTSUPP;
1151                 break;
1152         }
1153
1154         return err;
1155 }
1156
1157 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1158                                                    u16 lag_id)
1159 {
1160         struct mlxsw_sp_port *mlxsw_sp_port;
1161         int i;
1162
1163         for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
1164                 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1165                 if (mlxsw_sp_port)
1166                         return mlxsw_sp_port;
1167         }
1168         return NULL;
1169 }
1170
1171 static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1172                                   struct switchdev_obj_port_fdb *fdb,
1173                                   switchdev_obj_dump_cb_t *cb,
1174                                   struct net_device *orig_dev)
1175 {
1176         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1177         struct mlxsw_sp_port *tmp;
1178         struct mlxsw_sp_fid *f;
1179         u16 vport_fid;
1180         char *sfd_pl;
1181         char mac[ETH_ALEN];
1182         u16 fid;
1183         u8 local_port;
1184         u16 lag_id;
1185         u8 num_rec;
1186         int stored_err = 0;
1187         int i;
1188         int err;
1189
1190         sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1191         if (!sfd_pl)
1192                 return -ENOMEM;
1193
1194         f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
1195         vport_fid = f ? f->fid : 0;
1196
1197         mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
1198         do {
1199                 mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
1200                 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1201                 if (err)
1202                         goto out;
1203
1204                 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1205
1206                 /* Even in case of error, we have to run the dump to the end
1207                  * so the session in firmware is finished.
1208                  */
1209                 if (stored_err)
1210                         continue;
1211
1212                 for (i = 0; i < num_rec; i++) {
1213                         switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
1214                         case MLXSW_REG_SFD_REC_TYPE_UNICAST:
1215                                 mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
1216                                                         &local_port);
1217                                 if (local_port == mlxsw_sp_port->local_port) {
1218                                         if (vport_fid && vport_fid == fid)
1219                                                 fdb->vid = 0;
1220                                         else if (!vport_fid &&
1221                                                  !mlxsw_sp_fid_is_vfid(fid))
1222                                                 fdb->vid = fid;
1223                                         else
1224                                                 continue;
1225                                         ether_addr_copy(fdb->addr, mac);
1226                                         fdb->ndm_state = NUD_REACHABLE;
1227                                         err = cb(&fdb->obj);
1228                                         if (err)
1229                                                 stored_err = err;
1230                                 }
1231                                 break;
1232                         case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
1233                                 mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
1234                                                             mac, &fid, &lag_id);
1235                                 tmp = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1236                                 if (tmp && tmp->local_port ==
1237                                     mlxsw_sp_port->local_port) {
1238                                         /* LAG records can only point to LAG
1239                                          * devices or VLAN devices on top.
1240                                          */
1241                                         if (!netif_is_lag_master(orig_dev) &&
1242                                             !is_vlan_dev(orig_dev))
1243                                                 continue;
1244                                         if (vport_fid && vport_fid == fid)
1245                                                 fdb->vid = 0;
1246                                         else if (!vport_fid &&
1247                                                  !mlxsw_sp_fid_is_vfid(fid))
1248                                                 fdb->vid = fid;
1249                                         else
1250                                                 continue;
1251                                         ether_addr_copy(fdb->addr, mac);
1252                                         fdb->ndm_state = NUD_REACHABLE;
1253                                         err = cb(&fdb->obj);
1254                                         if (err)
1255                                                 stored_err = err;
1256                                 }
1257                                 break;
1258                         }
1259                 }
1260         } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);
1261
1262 out:
1263         kfree(sfd_pl);
1264         return stored_err ? stored_err : err;
1265 }
1266
1267 static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1268                                    struct switchdev_obj_port_vlan *vlan,
1269                                    switchdev_obj_dump_cb_t *cb)
1270 {
1271         u16 vid;
1272         int err = 0;
1273
1274         if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1275                 vlan->flags = 0;
1276                 vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1277                 vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1278                 return cb(&vlan->obj);
1279         }
1280
1281         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
1282                 vlan->flags = 0;
1283                 if (vid == mlxsw_sp_port->pvid)
1284                         vlan->flags |= BRIDGE_VLAN_INFO_PVID;
1285                 if (test_bit(vid, mlxsw_sp_port->untagged_vlans))
1286                         vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
1287                 vlan->vid_begin = vid;
1288                 vlan->vid_end = vid;
1289                 err = cb(&vlan->obj);
1290                 if (err)
1291                         break;
1292         }
1293         return err;
1294 }
1295
1296 static int mlxsw_sp_port_obj_dump(struct net_device *dev,
1297                                   struct switchdev_obj *obj,
1298                                   switchdev_obj_dump_cb_t *cb)
1299 {
1300         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1301         int err = 0;
1302
1303         mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1304         if (!mlxsw_sp_port)
1305                 return -EINVAL;
1306
1307         switch (obj->id) {
1308         case SWITCHDEV_OBJ_ID_PORT_VLAN:
1309                 err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
1310                                               SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
1311                 break;
1312         case SWITCHDEV_OBJ_ID_PORT_FDB:
1313                 err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
1314                                              SWITCHDEV_OBJ_PORT_FDB(obj), cb,
1315                                              obj->orig_dev);
1316                 break;
1317         default:
1318                 err = -EOPNOTSUPP;
1319                 break;
1320         }
1321
1322         return err;
1323 }
1324
1325 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1326         .switchdev_port_attr_get        = mlxsw_sp_port_attr_get,
1327         .switchdev_port_attr_set        = mlxsw_sp_port_attr_set,
1328         .switchdev_port_obj_add         = mlxsw_sp_port_obj_add,
1329         .switchdev_port_obj_del         = mlxsw_sp_port_obj_del,
1330         .switchdev_port_obj_dump        = mlxsw_sp_port_obj_dump,
1331 };
1332
1333 static void mlxsw_sp_fdb_call_notifiers(bool learning_sync, bool adding,
1334                                         char *mac, u16 vid,
1335                                         struct net_device *dev)
1336 {
1337         struct switchdev_notifier_fdb_info info;
1338         unsigned long notifier_type;
1339
1340         if (learning_sync) {
1341                 info.addr = mac;
1342                 info.vid = vid;
1343                 notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
1344                 call_switchdev_notifiers(notifier_type, dev, &info.info);
1345         }
1346 }
1347
1348 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1349                                             char *sfn_pl, int rec_index,
1350                                             bool adding)
1351 {
1352         struct mlxsw_sp_port *mlxsw_sp_port;
1353         char mac[ETH_ALEN];
1354         u8 local_port;
1355         u16 vid, fid;
1356         bool do_notification = true;
1357         int err;
1358
1359         mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1360         mlxsw_sp_port = mlxsw_sp->ports[local_port];
1361         if (!mlxsw_sp_port) {
1362                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1363                 goto just_remove;
1364         }
1365
1366         if (mlxsw_sp_fid_is_vfid(fid)) {
1367                 struct mlxsw_sp_port *mlxsw_sp_vport;
1368
1369                 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
1370                                                                  fid);
1371                 if (!mlxsw_sp_vport) {
1372                         netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1373                         goto just_remove;
1374                 }
1375                 vid = 0;
1376                 /* Override the physical port with the vPort. */
1377                 mlxsw_sp_port = mlxsw_sp_vport;
1378         } else {
1379                 vid = fid;
1380         }
1381
1382         adding = adding && mlxsw_sp_port->learning;
1383
1384 do_fdb_op:
1385         err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
1386                                       adding, true);
1387         if (err) {
1388                 if (net_ratelimit())
1389                         netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1390                 return;
1391         }
1392
1393         if (!do_notification)
1394                 return;
1395         mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync,
1396                                     adding, mac, vid, mlxsw_sp_port->dev);
1397         return;
1398
1399 just_remove:
1400         adding = false;
1401         do_notification = false;
1402         goto do_fdb_op;
1403 }
1404
1405 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
1406                                                 char *sfn_pl, int rec_index,
1407                                                 bool adding)
1408 {
1409         struct mlxsw_sp_port *mlxsw_sp_port;
1410         struct net_device *dev;
1411         char mac[ETH_ALEN];
1412         u16 lag_vid = 0;
1413         u16 lag_id;
1414         u16 vid, fid;
1415         bool do_notification = true;
1416         int err;
1417
1418         mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1419         mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1420         if (!mlxsw_sp_port) {
1421                 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1422                 goto just_remove;
1423         }
1424
1425         if (mlxsw_sp_fid_is_vfid(fid)) {
1426                 struct mlxsw_sp_port *mlxsw_sp_vport;
1427
1428                 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
1429                                                                  fid);
1430                 if (!mlxsw_sp_vport) {
1431                         netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1432                         goto just_remove;
1433                 }
1434
1435                 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1436                 dev = mlxsw_sp_vport->dev;
1437                 vid = 0;
1438                 /* Override the physical port with the vPort. */
1439                 mlxsw_sp_port = mlxsw_sp_vport;
1440         } else {
1441                 dev = mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev;
1442                 vid = fid;
1443         }
1444
1445         adding = adding && mlxsw_sp_port->learning;
1446
1447 do_fdb_op:
1448         err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1449                                           adding, true);
1450         if (err) {
1451                 if (net_ratelimit())
1452                         netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1453                 return;
1454         }
1455
1456         if (!do_notification)
1457                 return;
1458         mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync, adding, mac,
1459                                     vid, dev);
1460         return;
1461
1462 just_remove:
1463         adding = false;
1464         do_notification = false;
1465         goto do_fdb_op;
1466 }
1467
1468 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
1469                                             char *sfn_pl, int rec_index)
1470 {
1471         switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
1472         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
1473                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1474                                                 rec_index, true);
1475                 break;
1476         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
1477                 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1478                                                 rec_index, false);
1479                 break;
1480         case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
1481                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1482                                                     rec_index, true);
1483                 break;
1484         case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
1485                 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1486                                                     rec_index, false);
1487                 break;
1488         }
1489 }
1490
1491 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
1492 {
1493         mlxsw_core_schedule_dw(&mlxsw_sp->fdb_notify.dw,
1494                                msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
1495 }
1496
1497 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
1498 {
1499         struct mlxsw_sp *mlxsw_sp;
1500         char *sfn_pl;
1501         u8 num_rec;
1502         int i;
1503         int err;
1504
1505         sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
1506         if (!sfn_pl)
1507                 return;
1508
1509         mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
1510
1511         rtnl_lock();
1512         do {
1513                 mlxsw_reg_sfn_pack(sfn_pl);
1514                 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
1515                 if (err) {
1516                         dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
1517                         break;
1518                 }
1519                 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
1520                 for (i = 0; i < num_rec; i++)
1521                         mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
1522
1523         } while (num_rec);
1524         rtnl_unlock();
1525
1526         kfree(sfn_pl);
1527         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1528 }
1529
1530 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
1531 {
1532         int err;
1533
1534         err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
1535         if (err) {
1536                 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
1537                 return err;
1538         }
1539         INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
1540         mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
1541         mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1542         return 0;
1543 }
1544
1545 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
1546 {
1547         cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
1548 }
1549
1550 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
1551 {
1552         return mlxsw_sp_fdb_init(mlxsw_sp);
1553 }
1554
1555 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
1556 {
1557         mlxsw_sp_fdb_fini(mlxsw_sp);
1558 }
1559
1560 int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port)
1561 {
1562         struct net_device *dev = mlxsw_sp_port->dev;
1563         int err;
1564
1565         /* Allow only untagged packets to ingress and tag them internally
1566          * with VID 1.
1567          */
1568         mlxsw_sp_port->pvid = 1;
1569         err = __mlxsw_sp_port_vlans_del(mlxsw_sp_port, 0, VLAN_N_VID - 1,
1570                                         true);
1571         if (err) {
1572                 netdev_err(dev, "Unable to init VLANs\n");
1573                 return err;
1574         }
1575
1576         /* Add implicit VLAN interface in the device, so that untagged
1577          * packets will be classified to the default vFID.
1578          */
1579         err = mlxsw_sp_port_add_vid(dev, 0, 1);
1580         if (err)
1581                 netdev_err(dev, "Failed to configure default vFID\n");
1582
1583         return err;
1584 }
1585
1586 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
1587 {
1588         mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
1589 }
1590
1591 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
1592 {
1593 }