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