drivers/net/ethernet/mellanox/mlxsw/spectrum.c

   1 /*
   2  * drivers/net/ethernet/mellanox/mlxsw/spectrum.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/module.h>
  39 #include <linux/types.h>
  40 #include <linux/netdevice.h>
  41 #include <linux/etherdevice.h>
  42 #include <linux/ethtool.h>
  43 #include <linux/slab.h>
  44 #include <linux/device.h>
  45 #include <linux/skbuff.h>
  46 #include <linux/if_vlan.h>
  47 #include <linux/if_bridge.h>
  48 #include <linux/workqueue.h>
  49 #include <linux/jiffies.h>
  50 #include <linux/bitops.h>
  51 #include <linux/list.h>
  52 #include <linux/notifier.h>
  53 #include <linux/dcbnl.h>
  54 #include <linux/inetdevice.h>
  55 #include <net/switchdev.h>
  56 #include <generated/utsrelease.h>
  57 #include <net/pkt_cls.h>
  58 #include <net/tc_act/tc_mirred.h>
  59
  60 #include "spectrum.h"
  61 #include "core.h"
  62 #include "reg.h"
  63 #include "port.h"
  64 #include "trap.h"
  65 #include "txheader.h"
  66
  67 static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum";
  68 static const char mlxsw_sp_driver_version[] = "1.0";
  69
  70 /* tx_hdr_version
  71  * Tx header version.
  72  * Must be set to 1.
  73  */
  74 MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
  75
  76 /* tx_hdr_ctl
  77  * Packet control type.
  78  * 0 - Ethernet control (e.g. EMADs, LACP)
  79  * 1 - Ethernet data
  80  */
  81 MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
  82
  83 /* tx_hdr_proto
  84  * Packet protocol type. Must be set to 1 (Ethernet).
  85  */
  86 MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
  87
  88 /* tx_hdr_rx_is_router
  89  * Packet is sent from the router. Valid for data packets only.
  90  */
  91 MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);
  92
  93 /* tx_hdr_fid_valid
  94  * Indicates if the 'fid' field is valid and should be used for
  95  * forwarding lookup. Valid for data packets only.
  96  */
  97 MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);
  98
  99 /* tx_hdr_swid
 100  * Switch partition ID. Must be set to 0.
 101  */
 102 MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
 103
 104 /* tx_hdr_control_tclass
 105  * Indicates if the packet should use the control TClass and not one
 106  * of the data TClasses.
 107  */
 108 MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);
 109
 110 /* tx_hdr_etclass
 111  * Egress TClass to be used on the egress device on the egress port.
 112  */
 113 MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);
 114
 115 /* tx_hdr_port_mid
 116  * Destination local port for unicast packets.
 117  * Destination multicast ID for multicast packets.
 118  *
 119  * Control packets are directed to a specific egress port, while data
 120  * packets are transmitted through the CPU port (0) into the switch partition,
 121  * where forwarding rules are applied.
 122  */
 123 MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
 124
 125 /* tx_hdr_fid
 126  * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
 127  * set, otherwise calculated based on the packet's VID using VID to FID mapping.
 128  * Valid for data packets only.
 129  */
 130 MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);
 131
 132 /* tx_hdr_type
 133  * 0 - Data packets
 134  * 6 - Control packets
 135  */
 136 MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
 137
 138 static bool mlxsw_sp_port_dev_check(const struct net_device *dev);
 139
 140 static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
 141                                      const struct mlxsw_tx_info *tx_info)
 142 {
 143         char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
 144
 145         memset(txhdr, 0, MLXSW_TXHDR_LEN);
 146
 147         mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
 148         mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
 149         mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
 150         mlxsw_tx_hdr_swid_set(txhdr, 0);
 151         mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
 152         mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
 153         mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
 154 }
 155
 156 static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
 157 {
 158         char spad_pl[MLXSW_REG_SPAD_LEN];
 159         int err;
 160
 161         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
 162         if (err)
 163                 return err;
 164         mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
 165         return 0;
 166 }
 167
 168 static int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp)
 169 {
 170         struct mlxsw_resources *resources;
 171         int i;
 172
 173         resources = mlxsw_core_resources_get(mlxsw_sp->core);
 174         if (!resources->max_span_valid)
 175                 return -EIO;
 176
 177         mlxsw_sp->span.entries_count = resources->max_span;
 178         mlxsw_sp->span.entries = kcalloc(mlxsw_sp->span.entries_count,
 179                                          sizeof(struct mlxsw_sp_span_entry),
 180                                          GFP_KERNEL);
 181         if (!mlxsw_sp->span.entries)
 182                 return -ENOMEM;
 183
 184         for (i = 0; i < mlxsw_sp->span.entries_count; i++)
 185                 INIT_LIST_HEAD(&mlxsw_sp->span.entries[i].bound_ports_list);
 186
 187         return 0;
 188 }
 189
 190 static void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp)
 191 {
 192         int i;
 193
 194         for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
 195                 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
 196
 197                 WARN_ON_ONCE(!list_empty(&curr->bound_ports_list));
 198         }
 199         kfree(mlxsw_sp->span.entries);
 200 }
 201
 202 static struct mlxsw_sp_span_entry *
 203 mlxsw_sp_span_entry_create(struct mlxsw_sp_port *port)
 204 {
 205         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 206         struct mlxsw_sp_span_entry *span_entry;
 207         char mpat_pl[MLXSW_REG_MPAT_LEN];
 208         u8 local_port = port->local_port;
 209         int index;
 210         int i;
 211         int err;
 212
 213         /* find a free entry to use */
 214         index = -1;
 215         for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
 216                 if (!mlxsw_sp->span.entries[i].used) {
 217                         index = i;
 218                         span_entry = &mlxsw_sp->span.entries[i];
 219                         break;
 220                 }
 221         }
 222         if (index < 0)
 223                 return NULL;
 224
 225         /* create a new port analayzer entry for local_port */
 226         mlxsw_reg_mpat_pack(mpat_pl, index, local_port, true);
 227         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
 228         if (err)
 229                 return NULL;
 230
 231         span_entry->used = true;
 232         span_entry->id = index;
 233         span_entry->ref_count = 0;
 234         span_entry->local_port = local_port;
 235         return span_entry;
 236 }
 237
 238 static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
 239                                         struct mlxsw_sp_span_entry *span_entry)
 240 {
 241         u8 local_port = span_entry->local_port;
 242         char mpat_pl[MLXSW_REG_MPAT_LEN];
 243         int pa_id = span_entry->id;
 244
 245         mlxsw_reg_mpat_pack(mpat_pl, pa_id, local_port, false);
 246         mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
 247         span_entry->used = false;
 248 }
 249
 250 struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
 251 {
 252         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 253         int i;
 254
 255         for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
 256                 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
 257
 258                 if (curr->used && curr->local_port == port->local_port)
 259                         return curr;
 260         }
 261         return NULL;
 262 }
 263
 264 struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port)
 265 {
 266         struct mlxsw_sp_span_entry *span_entry;
 267
 268         span_entry = mlxsw_sp_span_entry_find(port);
 269         if (span_entry) {
 270                 span_entry->ref_count++;
 271                 return span_entry;
 272         }
 273
 274         return mlxsw_sp_span_entry_create(port);
 275 }
 276
 277 static int mlxsw_sp_span_entry_put(struct mlxsw_sp *mlxsw_sp,
 278                                    struct mlxsw_sp_span_entry *span_entry)
 279 {
 280         if (--span_entry->ref_count == 0)
 281                 mlxsw_sp_span_entry_destroy(mlxsw_sp, span_entry);
 282         return 0;
 283 }
 284
 285 static bool mlxsw_sp_span_is_egress_mirror(struct mlxsw_sp_port *port)
 286 {
 287         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 288         struct mlxsw_sp_span_inspected_port *p;
 289         int i;
 290
 291         for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
 292                 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
 293
 294                 list_for_each_entry(p, &curr->bound_ports_list, list)
 295                         if (p->local_port == port->local_port &&
 296                             p->type == MLXSW_SP_SPAN_EGRESS)
 297                                 return true;
 298         }
 299
 300         return false;
 301 }
 302
 303 static int mlxsw_sp_span_mtu_to_buffsize(int mtu)
 304 {
 305         return MLXSW_SP_BYTES_TO_CELLS(mtu * 5 / 2) + 1;
 306 }
 307
 308 static int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu)
 309 {
 310         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 311         char sbib_pl[MLXSW_REG_SBIB_LEN];
 312         int err;
 313
 314         /* If port is egress mirrored, the shared buffer size should be
 315          * updated according to the mtu value
 316          */
 317         if (mlxsw_sp_span_is_egress_mirror(port)) {
 318                 mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
 319                                     mlxsw_sp_span_mtu_to_buffsize(mtu));
 320                 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
 321                 if (err) {
 322                         netdev_err(port->dev, "Could not update shared buffer for mirroring\n");
 323                         return err;
 324                 }
 325         }
 326
 327         return 0;
 328 }
 329
 330 static struct mlxsw_sp_span_inspected_port *
 331 mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_port *port,
 332                                     struct mlxsw_sp_span_entry *span_entry)
 333 {
 334         struct mlxsw_sp_span_inspected_port *p;
 335
 336         list_for_each_entry(p, &span_entry->bound_ports_list, list)
 337                 if (port->local_port == p->local_port)
 338                         return p;
 339         return NULL;
 340 }
 341
 342 static int
 343 mlxsw_sp_span_inspected_port_bind(struct mlxsw_sp_port *port,
 344                                   struct mlxsw_sp_span_entry *span_entry,
 345                                   enum mlxsw_sp_span_type type)
 346 {
 347         struct mlxsw_sp_span_inspected_port *inspected_port;
 348         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 349         char mpar_pl[MLXSW_REG_MPAR_LEN];
 350         char sbib_pl[MLXSW_REG_SBIB_LEN];
 351         int pa_id = span_entry->id;
 352         int err;
 353
 354         /* if it is an egress SPAN, bind a shared buffer to it */
 355         if (type == MLXSW_SP_SPAN_EGRESS) {
 356                 mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
 357                                     mlxsw_sp_span_mtu_to_buffsize(port->dev->mtu));
 358                 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
 359                 if (err) {
 360                         netdev_err(port->dev, "Could not create shared buffer for mirroring\n");
 361                         return err;
 362                 }
 363         }
 364
 365         /* bind the port to the SPAN entry */
 366         mlxsw_reg_mpar_pack(mpar_pl, port->local_port, type, true, pa_id);
 367         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
 368         if (err)
 369                 goto err_mpar_reg_write;
 370
 371         inspected_port = kzalloc(sizeof(*inspected_port), GFP_KERNEL);
 372         if (!inspected_port) {
 373                 err = -ENOMEM;
 374                 goto err_inspected_port_alloc;
 375         }
 376         inspected_port->local_port = port->local_port;
 377         inspected_port->type = type;
 378         list_add_tail(&inspected_port->list, &span_entry->bound_ports_list);
 379
 380         return 0;
 381
 382 err_mpar_reg_write:
 383 err_inspected_port_alloc:
 384         if (type == MLXSW_SP_SPAN_EGRESS) {
 385                 mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
 386                 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
 387         }
 388         return err;
 389 }
 390
 391 static void
 392 mlxsw_sp_span_inspected_port_unbind(struct mlxsw_sp_port *port,
 393                                     struct mlxsw_sp_span_entry *span_entry,
 394                                     enum mlxsw_sp_span_type type)
 395 {
 396         struct mlxsw_sp_span_inspected_port *inspected_port;
 397         struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 398         char mpar_pl[MLXSW_REG_MPAR_LEN];
 399         char sbib_pl[MLXSW_REG_SBIB_LEN];
 400         int pa_id = span_entry->id;
 401
 402         inspected_port = mlxsw_sp_span_entry_bound_port_find(port, span_entry);
 403         if (!inspected_port)
 404                 return;
 405
 406         /* remove the inspected port */
 407         mlxsw_reg_mpar_pack(mpar_pl, port->local_port, type, false, pa_id);
 408         mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
 409
 410         /* remove the SBIB buffer if it was egress SPAN */
 411         if (type == MLXSW_SP_SPAN_EGRESS) {
 412                 mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
 413                 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
 414         }
 415
 416         mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
 417
 418         list_del(&inspected_port->list);
 419         kfree(inspected_port);
 420 }
 421
 422 static int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
 423                                     struct mlxsw_sp_port *to,
 424                                     enum mlxsw_sp_span_type type)
 425 {
 426         struct mlxsw_sp *mlxsw_sp = from->mlxsw_sp;
 427         struct mlxsw_sp_span_entry *span_entry;
 428         int err;
 429
 430         span_entry = mlxsw_sp_span_entry_get(to);
 431         if (!span_entry)
 432                 return -ENOENT;
 433
 434         netdev_dbg(from->dev, "Adding inspected port to SPAN entry %d\n",
 435                    span_entry->id);
 436
 437         err = mlxsw_sp_span_inspected_port_bind(from, span_entry, type);
 438         if (err)
 439                 goto err_port_bind;
 440
 441         return 0;
 442
 443 err_port_bind:
 444         mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
 445         return err;
 446 }
 447
 448 static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from,
 449                                         struct mlxsw_sp_port *to,
 450                                         enum mlxsw_sp_span_type type)
 451 {
 452         struct mlxsw_sp_span_entry *span_entry;
 453
 454         span_entry = mlxsw_sp_span_entry_find(to);
 455         if (!span_entry) {
 456                 netdev_err(from->dev, "no span entry found\n");
 457                 return;
 458         }
 459
 460         netdev_dbg(from->dev, "removing inspected port from SPAN entry %d\n",
 461                    span_entry->id);
 462         mlxsw_sp_span_inspected_port_unbind(from, span_entry, type);
 463 }
 464
 465 static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
 466                                           bool is_up)
 467 {
 468         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 469         char paos_pl[MLXSW_REG_PAOS_LEN];
 470
 471         mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
 472                             is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
 473                             MLXSW_PORT_ADMIN_STATUS_DOWN);
 474         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
 475 }
 476
 477 static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
 478                                       unsigned char *addr)
 479 {
 480         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 481         char ppad_pl[MLXSW_REG_PPAD_LEN];
 482
 483         mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
 484         mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
 485         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
 486 }
 487
 488 static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
 489 {
 490         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 491         unsigned char *addr = mlxsw_sp_port->dev->dev_addr;
 492
 493         ether_addr_copy(addr, mlxsw_sp->base_mac);
 494         addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
 495         return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
 496 }
 497
 498 static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
 499 {
 500         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 501         char pmtu_pl[MLXSW_REG_PMTU_LEN];
 502         int max_mtu;
 503         int err;
 504
 505         mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
 506         mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
 507         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
 508         if (err)
 509                 return err;
 510         max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
 511
 512         if (mtu > max_mtu)
 513                 return -EINVAL;
 514
 515         mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
 516         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
 517 }
 518
 519 static int __mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 520                                     u8 swid)
 521 {
 522         char pspa_pl[MLXSW_REG_PSPA_LEN];
 523
 524         mlxsw_reg_pspa_pack(pspa_pl, swid, local_port);
 525         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
 526 }
 527
 528 static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
 529 {
 530         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 531
 532         return __mlxsw_sp_port_swid_set(mlxsw_sp, mlxsw_sp_port->local_port,
 533                                         swid);
 534 }
 535
 536 static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
 537                                      bool enable)
 538 {
 539         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 540         char svpe_pl[MLXSW_REG_SVPE_LEN];
 541
 542         mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
 543         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
 544 }
 545
 546 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
 547                                  enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
 548                                  u16 vid)
 549 {
 550         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 551         char svfa_pl[MLXSW_REG_SVFA_LEN];
 552
 553         mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid,
 554                             fid, vid);
 555         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
 556 }
 557
 558 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
 559                                           u16 vid, bool learn_enable)
 560 {
 561         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 562         char *spvmlr_pl;
 563         int err;
 564
 565         spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
 566         if (!spvmlr_pl)
 567                 return -ENOMEM;
 568         mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
 569                               learn_enable);
 570         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
 571         kfree(spvmlr_pl);
 572         return err;
 573 }
 574
 575 static int
 576 mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
 577 {
 578         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 579         char sspr_pl[MLXSW_REG_SSPR_LEN];
 580
 581         mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
 582         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
 583 }
 584
 585 static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
 586                                          u8 local_port, u8 *p_module,
 587                                          u8 *p_width, u8 *p_lane)
 588 {
 589         char pmlp_pl[MLXSW_REG_PMLP_LEN];
 590         int err;
 591
 592         mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
 593         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
 594         if (err)
 595                 return err;
 596         *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
 597         *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
 598         *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
 599         return 0;
 600 }
 601
 602 static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
 603                                     u8 module, u8 width, u8 lane)
 604 {
 605         char pmlp_pl[MLXSW_REG_PMLP_LEN];
 606         int i;
 607
 608         mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
 609         mlxsw_reg_pmlp_width_set(pmlp_pl, width);
 610         for (i = 0; i < width; i++) {
 611                 mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
 612                 mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i);  /* Rx & Tx */
 613         }
 614
 615         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
 616 }
 617
 618 static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port)
 619 {
 620         char pmlp_pl[MLXSW_REG_PMLP_LEN];
 621
 622         mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
 623         mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
 624         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
 625 }
 626
 627 static int mlxsw_sp_port_open(struct net_device *dev)
 628 {
 629         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 630         int err;
 631
 632         err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
 633         if (err)
 634                 return err;
 635         netif_start_queue(dev);
 636         return 0;
 637 }
 638
 639 static int mlxsw_sp_port_stop(struct net_device *dev)
 640 {
 641         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 642
 643         netif_stop_queue(dev);
 644         return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
 645 }
 646
 647 static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
 648                                       struct net_device *dev)
 649 {
 650         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 651         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 652         struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
 653         const struct mlxsw_tx_info tx_info = {
 654                 .local_port = mlxsw_sp_port->local_port,
 655                 .is_emad = false,
 656         };
 657         u64 len;
 658         int err;
 659
 660         if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
 661                 return NETDEV_TX_BUSY;
 662
 663         if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
 664                 struct sk_buff *skb_orig = skb;
 665
 666                 skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
 667                 if (!skb) {
 668                         this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
 669                         dev_kfree_skb_any(skb_orig);
 670                         return NETDEV_TX_OK;
 671                 }
 672         }
 673
 674         if (eth_skb_pad(skb)) {
 675                 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
 676                 return NETDEV_TX_OK;
 677         }
 678
 679         mlxsw_sp_txhdr_construct(skb, &tx_info);
 680         /* TX header is consumed by HW on the way so we shouldn't count its
 681          * bytes as being sent.
 682          */
 683         len = skb->len - MLXSW_TXHDR_LEN;
 684
 685         /* Due to a race we might fail here because of a full queue. In that
 686          * unlikely case we simply drop the packet.
 687          */
 688         err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
 689
 690         if (!err) {
 691                 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
 692                 u64_stats_update_begin(&pcpu_stats->syncp);
 693                 pcpu_stats->tx_packets++;
 694                 pcpu_stats->tx_bytes += len;
 695                 u64_stats_update_end(&pcpu_stats->syncp);
 696         } else {
 697                 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
 698                 dev_kfree_skb_any(skb);
 699         }
 700         return NETDEV_TX_OK;
 701 }
 702
 703 static void mlxsw_sp_set_rx_mode(struct net_device *dev)
 704 {
 705 }
 706
 707 static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
 708 {
 709         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 710         struct sockaddr *addr = p;
 711         int err;
 712
 713         if (!is_valid_ether_addr(addr->sa_data))
 714                 return -EADDRNOTAVAIL;
 715
 716         err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
 717         if (err)
 718                 return err;
 719         memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
 720         return 0;
 721 }
 722
 723 static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu,
 724                                  bool pause_en, bool pfc_en, u16 delay)
 725 {
 726         u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu);
 727
 728         delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) :
 729                          MLXSW_SP_PAUSE_DELAY;
 730
 731         if (pause_en || pfc_en)
 732                 mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index,
 733                                                     pg_size + delay, pg_size);
 734         else
 735                 mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size);
 736 }
 737
 738 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
 739                                  u8 *prio_tc, bool pause_en,
 740                                  struct ieee_pfc *my_pfc)
 741 {
 742         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 743         u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
 744         u16 delay = !!my_pfc ? my_pfc->delay : 0;
 745         char pbmc_pl[MLXSW_REG_PBMC_LEN];
 746         int i, j, err;
 747
 748         mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
 749         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
 750         if (err)
 751                 return err;
 752
 753         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
 754                 bool configure = false;
 755                 bool pfc = false;
 756
 757                 for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
 758                         if (prio_tc[j] == i) {
 759                                 pfc = pfc_en & BIT(j);
 760                                 configure = true;
 761                                 break;
 762                         }
 763                 }
 764
 765                 if (!configure)
 766                         continue;
 767                 mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay);
 768         }
 769
 770         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
 771 }
 772
 773 static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
 774                                       int mtu, bool pause_en)
 775 {
 776         u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
 777         bool dcb_en = !!mlxsw_sp_port->dcb.ets;
 778         struct ieee_pfc *my_pfc;
 779         u8 *prio_tc;
 780
 781         prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
 782         my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
 783
 784         return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
 785                                             pause_en, my_pfc);
 786 }
 787
 788 static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
 789 {
 790         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 791         bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
 792         int err;
 793
 794         err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
 795         if (err)
 796                 return err;
 797         err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
 798         if (err)
 799                 goto err_span_port_mtu_update;
 800         err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
 801         if (err)
 802                 goto err_port_mtu_set;
 803         dev->mtu = mtu;
 804         return 0;
 805
 806 err_port_mtu_set:
 807         mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
 808 err_span_port_mtu_update:
 809         mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
 810         return err;
 811 }
 812
 813 static struct rtnl_link_stats64 *
 814 mlxsw_sp_port_get_stats64(struct net_device *dev,
 815                           struct rtnl_link_stats64 *stats)
 816 {
 817         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 818         struct mlxsw_sp_port_pcpu_stats *p;
 819         u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
 820         u32 tx_dropped = 0;
 821         unsigned int start;
 822         int i;
 823
 824         for_each_possible_cpu(i) {
 825                 p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
 826                 do {
 827                         start = u64_stats_fetch_begin_irq(&p->syncp);
 828                         rx_packets      = p->rx_packets;
 829                         rx_bytes        = p->rx_bytes;
 830                         tx_packets      = p->tx_packets;
 831                         tx_bytes        = p->tx_bytes;
 832                 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
 833
 834                 stats->rx_packets       += rx_packets;
 835                 stats->rx_bytes         += rx_bytes;
 836                 stats->tx_packets       += tx_packets;
 837                 stats->tx_bytes         += tx_bytes;
 838                 /* tx_dropped is u32, updated without syncp protection. */
 839                 tx_dropped      += p->tx_dropped;
 840         }
 841         stats->tx_dropped       = tx_dropped;
 842         return stats;
 843 }
 844
 845 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
 846                            u16 vid_end, bool is_member, bool untagged)
 847 {
 848         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 849         char *spvm_pl;
 850         int err;
 851
 852         spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
 853         if (!spvm_pl)
 854                 return -ENOMEM;
 855
 856         mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin,
 857                             vid_end, is_member, untagged);
 858         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
 859         kfree(spvm_pl);
 860         return err;
 861 }
 862
 863 static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
 864 {
 865         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
 866         u16 vid, last_visited_vid;
 867         int err;
 868
 869         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 870                 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid,
 871                                                    vid);
 872                 if (err) {
 873                         last_visited_vid = vid;
 874                         goto err_port_vid_to_fid_set;
 875                 }
 876         }
 877
 878         err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
 879         if (err) {
 880                 last_visited_vid = VLAN_N_VID;
 881                 goto err_port_vid_to_fid_set;
 882         }
 883
 884         return 0;
 885
 886 err_port_vid_to_fid_set:
 887         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
 888                 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid,
 889                                              vid);
 890         return err;
 891 }
 892
 893 static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
 894 {
 895         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
 896         u16 vid;
 897         int err;
 898
 899         err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
 900         if (err)
 901                 return err;
 902
 903         for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
 904                 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false,
 905                                                    vid, vid);
 906                 if (err)
 907                         return err;
 908         }
 909
 910         return 0;
 911 }
 912
 913 static struct mlxsw_sp_port *
 914 mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
 915 {
 916         struct mlxsw_sp_port *mlxsw_sp_vport;
 917
 918         mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL);
 919         if (!mlxsw_sp_vport)
 920                 return NULL;
 921
 922         /* dev will be set correctly after the VLAN device is linked
 923          * with the real device. In case of bridge SELF invocation, dev
 924          * will remain as is.
 925          */
 926         mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
 927         mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 928         mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port;
 929         mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING;
 930         mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged;
 931         mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id;
 932         mlxsw_sp_vport->vport.vid = vid;
 933
 934         list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list);
 935
 936         return mlxsw_sp_vport;
 937 }
 938
 939 static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
 940 {
 941         list_del(&mlxsw_sp_vport->vport.list);
 942         kfree(mlxsw_sp_vport);
 943 }
 944
 945 int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
 946                           u16 vid)
 947 {
 948         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
 949         struct mlxsw_sp_port *mlxsw_sp_vport;
 950         bool untagged = vid == 1;
 951         int err;
 952
 953         /* VLAN 0 is added to HW filter when device goes up, but it is
 954          * reserved in our case, so simply return.
 955          */
 956         if (!vid)
 957                 return 0;
 958
 959         if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) {
 960                 netdev_warn(dev, "VID=%d already configured\n", vid);
 961                 return 0;
 962         }
 963
 964         mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid);
 965         if (!mlxsw_sp_vport) {
 966                 netdev_err(dev, "Failed to create vPort for VID=%d\n", vid);
 967                 return -ENOMEM;
 968         }
 969
 970         /* When adding the first VLAN interface on a bridged port we need to
 971          * transition all the active 802.1Q bridge VLANs to use explicit
 972          * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
 973          */
 974         if (list_is_singular(&mlxsw_sp_port->vports_list)) {
 975                 err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
 976                 if (err) {
 977                         netdev_err(dev, "Failed to set to Virtual mode\n");
 978                         goto err_port_vp_mode_trans;
 979                 }
 980         }
 981
 982         err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
 983         if (err) {
 984                 netdev_err(dev, "Failed to disable learning for VID=%d\n", vid);
 985                 goto err_port_vid_learning_set;
 986         }
 987
 988         err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
 989         if (err) {
 990                 netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
 991                            vid);
 992                 goto err_port_add_vid;
 993         }
 994
 995         return 0;
 996
 997 err_port_add_vid:
 998         mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
 999 err_port_vid_learning_set:
1000         if (list_is_singular(&mlxsw_sp_port->vports_list))
1001                 mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
1002 err_port_vp_mode_trans:
1003         mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
1004         return err;
1005 }
1006
1007 static int mlxsw_sp_port_kill_vid(struct net_device *dev,
1008                                   __be16 __always_unused proto, u16 vid)
1009 {
1010         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1011         struct mlxsw_sp_port *mlxsw_sp_vport;
1012         struct mlxsw_sp_fid *f;
1013         int err;
1014
1015         /* VLAN 0 is removed from HW filter when device goes down, but
1016          * it is reserved in our case, so simply return.
1017          */
1018         if (!vid)
1019                 return 0;
1020
1021         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
1022         if (!mlxsw_sp_vport) {
1023                 netdev_warn(dev, "VID=%d does not exist\n", vid);
1024                 return 0;
1025         }
1026
1027         err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);
1028         if (err) {
1029                 netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
1030                            vid);
1031                 return err;
1032         }
1033
1034         err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
1035         if (err) {
1036                 netdev_err(dev, "Failed to enable learning for VID=%d\n", vid);
1037                 return err;
1038         }
1039
1040         /* Drop FID reference. If this was the last reference the
1041          * resources will be freed.
1042          */
1043         f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
1044         if (f && !WARN_ON(!f->leave))
1045                 f->leave(mlxsw_sp_vport);
1046
1047         /* When removing the last VLAN interface on a bridged port we need to
1048          * transition all active 802.1Q bridge VLANs to use VID to FID
1049          * mappings and set port's mode to VLAN mode.
1050          */
1051         if (list_is_singular(&mlxsw_sp_port->vports_list)) {
1052                 err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
1053                 if (err) {
1054                         netdev_err(dev, "Failed to set to VLAN mode\n");
1055                         return err;
1056                 }
1057         }
1058
1059         mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
1060
1061         return 0;
1062 }
1063
1064 static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
1065                                             size_t len)
1066 {
1067         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1068         u8 module = mlxsw_sp_port->mapping.module;
1069         u8 width = mlxsw_sp_port->mapping.width;
1070         u8 lane = mlxsw_sp_port->mapping.lane;
1071         int err;
1072
1073         if (!mlxsw_sp_port->split)
1074                 err = snprintf(name, len, "p%d", module + 1);
1075         else
1076                 err = snprintf(name, len, "p%ds%d", module + 1,
1077                                lane / width);
1078
1079         if (err >= len)
1080                 return -EINVAL;
1081
1082         return 0;
1083 }
1084
1085 static struct mlxsw_sp_port_mall_tc_entry *
1086 mlxsw_sp_port_mirror_entry_find(struct mlxsw_sp_port *port,
1087                                 unsigned long cookie) {
1088         struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1089
1090         list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list)
1091                 if (mall_tc_entry->cookie == cookie)
1092                         return mall_tc_entry;
1093
1094         return NULL;
1095 }
1096
1097 static int
1098 mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
1099                                       struct tc_cls_matchall_offload *cls,
1100                                       const struct tc_action *a,
1101                                       bool ingress)
1102 {
1103         struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1104         struct net *net = dev_net(mlxsw_sp_port->dev);
1105         enum mlxsw_sp_span_type span_type;
1106         struct mlxsw_sp_port *to_port;
1107         struct net_device *to_dev;
1108         int ifindex;
1109         int err;
1110
1111         ifindex = tcf_mirred_ifindex(a);
1112         to_dev = __dev_get_by_index(net, ifindex);
1113         if (!to_dev) {
1114                 netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n");
1115                 return -EINVAL;
1116         }
1117
1118         if (!mlxsw_sp_port_dev_check(to_dev)) {
1119                 netdev_err(mlxsw_sp_port->dev, "Cannot mirror to a non-spectrum port");
1120                 return -ENOTSUPP;
1121         }
1122         to_port = netdev_priv(to_dev);
1123
1124         mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
1125         if (!mall_tc_entry)
1126                 return -ENOMEM;
1127
1128         mall_tc_entry->cookie = cls->cookie;
1129         mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR;
1130         mall_tc_entry->mirror.to_local_port = to_port->local_port;
1131         mall_tc_entry->mirror.ingress = ingress;
1132         list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list);
1133
1134         span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1135         err = mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_port, span_type);
1136         if (err)
1137                 goto err_mirror_add;
1138         return 0;
1139
1140 err_mirror_add:
1141         list_del(&mall_tc_entry->list);
1142         kfree(mall_tc_entry);
1143         return err;
1144 }
1145
1146 static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1147                                           __be16 protocol,
1148                                           struct tc_cls_matchall_offload *cls,
1149                                           bool ingress)
1150 {
1151         const struct tc_action *a;
1152         int err;
1153
1154         if (!tc_single_action(cls->exts)) {
1155                 netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
1156                 return -ENOTSUPP;
1157         }
1158
1159         tc_for_each_action(a, cls->exts) {
1160                 if (!is_tcf_mirred_mirror(a) || protocol != htons(ETH_P_ALL))
1161                         return -ENOTSUPP;
1162
1163                 err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, cls,
1164                                                             a, ingress);
1165                 if (err)
1166                         return err;
1167         }
1168
1169         return 0;
1170 }
1171
1172 static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1173                                            struct tc_cls_matchall_offload *cls)
1174 {
1175         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1176         struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1177         enum mlxsw_sp_span_type span_type;
1178         struct mlxsw_sp_port *to_port;
1179
1180         mall_tc_entry = mlxsw_sp_port_mirror_entry_find(mlxsw_sp_port,
1181                                                         cls->cookie);
1182         if (!mall_tc_entry) {
1183                 netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
1184                 return;
1185         }
1186
1187         switch (mall_tc_entry->type) {
1188         case MLXSW_SP_PORT_MALL_MIRROR:
1189                 to_port = mlxsw_sp->ports[mall_tc_entry->mirror.to_local_port];
1190                 span_type = mall_tc_entry->mirror.ingress ?
1191                                 MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1192
1193                 mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
1194                 break;
1195         default:
1196                 WARN_ON(1);
1197         }
1198
1199         list_del(&mall_tc_entry->list);
1200         kfree(mall_tc_entry);
1201 }
1202
1203 static int mlxsw_sp_setup_tc(struct net_device *dev, u32 handle,
1204                              __be16 proto, struct tc_to_netdev *tc)
1205 {
1206         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1207         bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS);
1208
1209         if (tc->type == TC_SETUP_MATCHALL) {
1210                 switch (tc->cls_mall->command) {
1211                 case TC_CLSMATCHALL_REPLACE:
1212                         return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port,
1213                                                               proto,
1214                                                               tc->cls_mall,
1215                                                               ingress);
1216                 case TC_CLSMATCHALL_DESTROY:
1217                         mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port,
1218                                                        tc->cls_mall);
1219                         return 0;
1220                 default:
1221                         return -EINVAL;
1222                 }
1223         }
1224
1225         return -ENOTSUPP;
1226 }
1227
1228 static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
1229         .ndo_open               = mlxsw_sp_port_open,
1230         .ndo_stop               = mlxsw_sp_port_stop,
1231         .ndo_start_xmit         = mlxsw_sp_port_xmit,
1232         .ndo_setup_tc           = mlxsw_sp_setup_tc,
1233         .ndo_set_rx_mode        = mlxsw_sp_set_rx_mode,
1234         .ndo_set_mac_address    = mlxsw_sp_port_set_mac_address,
1235         .ndo_change_mtu         = mlxsw_sp_port_change_mtu,
1236         .ndo_get_stats64        = mlxsw_sp_port_get_stats64,
1237         .ndo_vlan_rx_add_vid    = mlxsw_sp_port_add_vid,
1238         .ndo_vlan_rx_kill_vid   = mlxsw_sp_port_kill_vid,
1239         .ndo_neigh_construct    = mlxsw_sp_router_neigh_construct,
1240         .ndo_neigh_destroy      = mlxsw_sp_router_neigh_destroy,
1241         .ndo_fdb_add            = switchdev_port_fdb_add,
1242         .ndo_fdb_del            = switchdev_port_fdb_del,
1243         .ndo_fdb_dump           = switchdev_port_fdb_dump,
1244         .ndo_bridge_setlink     = switchdev_port_bridge_setlink,
1245         .ndo_bridge_getlink     = switchdev_port_bridge_getlink,
1246         .ndo_bridge_dellink     = switchdev_port_bridge_dellink,
1247         .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name,
1248 };
1249
1250 static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
1251                                       struct ethtool_drvinfo *drvinfo)
1252 {
1253         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1254         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1255
1256         strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
1257         strlcpy(drvinfo->version, mlxsw_sp_driver_version,
1258                 sizeof(drvinfo->version));
1259         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
1260                  "%d.%d.%d",
1261                  mlxsw_sp->bus_info->fw_rev.major,
1262                  mlxsw_sp->bus_info->fw_rev.minor,
1263                  mlxsw_sp->bus_info->fw_rev.subminor);
1264         strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
1265                 sizeof(drvinfo->bus_info));
1266 }
1267
1268 static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
1269                                          struct ethtool_pauseparam *pause)
1270 {
1271         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1272
1273         pause->rx_pause = mlxsw_sp_port->link.rx_pause;
1274         pause->tx_pause = mlxsw_sp_port->link.tx_pause;
1275 }
1276
1277 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
1278                                    struct ethtool_pauseparam *pause)
1279 {
1280         char pfcc_pl[MLXSW_REG_PFCC_LEN];
1281
1282         mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
1283         mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
1284         mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);
1285
1286         return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
1287                                pfcc_pl);
1288 }
1289
1290 static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
1291                                         struct ethtool_pauseparam *pause)
1292 {
1293         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1294         bool pause_en = pause->tx_pause || pause->rx_pause;
1295         int err;
1296
1297         if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
1298                 netdev_err(dev, "PFC already enabled on port\n");
1299                 return -EINVAL;
1300         }
1301
1302         if (pause->autoneg) {
1303                 netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
1304                 return -EINVAL;
1305         }
1306
1307         err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1308         if (err) {
1309                 netdev_err(dev, "Failed to configure port's headroom\n");
1310                 return err;
1311         }
1312
1313         err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
1314         if (err) {
1315                 netdev_err(dev, "Failed to set PAUSE parameters\n");
1316                 goto err_port_pause_configure;
1317         }
1318
1319         mlxsw_sp_port->link.rx_pause = pause->rx_pause;
1320         mlxsw_sp_port->link.tx_pause = pause->tx_pause;
1321
1322         return 0;
1323
1324 err_port_pause_configure:
1325         pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
1326         mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1327         return err;
1328 }
1329
1330 struct mlxsw_sp_port_hw_stats {
1331         char str[ETH_GSTRING_LEN];
1332         u64 (*getter)(char *payload);
1333 };
1334
1335 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
1336         {
1337                 .str = "a_frames_transmitted_ok",
1338                 .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
1339         },
1340         {
1341                 .str = "a_frames_received_ok",
1342                 .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
1343         },
1344         {
1345                 .str = "a_frame_check_sequence_errors",
1346                 .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
1347         },
1348         {
1349                 .str = "a_alignment_errors",
1350                 .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
1351         },
1352         {
1353                 .str = "a_octets_transmitted_ok",
1354                 .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
1355         },
1356         {
1357                 .str = "a_octets_received_ok",
1358                 .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
1359         },
1360         {
1361                 .str = "a_multicast_frames_xmitted_ok",
1362                 .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
1363         },
1364         {
1365                 .str = "a_broadcast_frames_xmitted_ok",
1366                 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
1367         },
1368         {
1369                 .str = "a_multicast_frames_received_ok",
1370                 .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
1371         },
1372         {
1373                 .str = "a_broadcast_frames_received_ok",
1374                 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
1375         },
1376         {
1377                 .str = "a_in_range_length_errors",
1378                 .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
1379         },
1380         {
1381                 .str = "a_out_of_range_length_field",
1382                 .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
1383         },
1384         {
1385                 .str = "a_frame_too_long_errors",
1386                 .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
1387         },
1388         {
1389                 .str = "a_symbol_error_during_carrier",
1390                 .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
1391         },
1392         {
1393                 .str = "a_mac_control_frames_transmitted",
1394                 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
1395         },
1396         {
1397                 .str = "a_mac_control_frames_received",
1398                 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
1399         },
1400         {
1401                 .str = "a_unsupported_opcodes_received",
1402                 .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
1403         },
1404         {
1405                 .str = "a_pause_mac_ctrl_frames_received",
1406                 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
1407         },
1408         {
1409                 .str = "a_pause_mac_ctrl_frames_xmitted",
1410                 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
1411         },
1412 };
1413
1414 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
1415
1416 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
1417         {
1418                 .str = "rx_octets_prio",
1419                 .getter = mlxsw_reg_ppcnt_rx_octets_get,
1420         },
1421         {
1422                 .str = "rx_frames_prio",
1423                 .getter = mlxsw_reg_ppcnt_rx_frames_get,
1424         },
1425         {
1426                 .str = "tx_octets_prio",
1427                 .getter = mlxsw_reg_ppcnt_tx_octets_get,
1428         },
1429         {
1430                 .str = "tx_frames_prio",
1431                 .getter = mlxsw_reg_ppcnt_tx_frames_get,
1432         },
1433         {
1434                 .str = "rx_pause_prio",
1435                 .getter = mlxsw_reg_ppcnt_rx_pause_get,
1436         },
1437         {
1438                 .str = "rx_pause_duration_prio",
1439                 .getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
1440         },
1441         {
1442                 .str = "tx_pause_prio",
1443                 .getter = mlxsw_reg_ppcnt_tx_pause_get,
1444         },
1445         {
1446                 .str = "tx_pause_duration_prio",
1447                 .getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
1448         },
1449 };
1450
1451 #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)
1452
1453 static u64 mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get(char *ppcnt_pl)
1454 {
1455         u64 transmit_queue = mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
1456
1457         return MLXSW_SP_CELLS_TO_BYTES(transmit_queue);
1458 }
1459
1460 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
1461         {
1462                 .str = "tc_transmit_queue_tc",
1463                 .getter = mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get,
1464         },
1465         {
1466                 .str = "tc_no_buffer_discard_uc_tc",
1467                 .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
1468         },
1469 };
1470
1471 #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)
1472
1473 #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
1474                                          (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \
1475                                           MLXSW_SP_PORT_HW_TC_STATS_LEN) * \
1476                                          IEEE_8021QAZ_MAX_TCS)
1477
1478 static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
1479 {
1480         int i;
1481
1482         for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
1483                 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1484                          mlxsw_sp_port_hw_prio_stats[i].str, prio);
1485                 *p += ETH_GSTRING_LEN;
1486         }
1487 }
1488
1489 static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
1490 {
1491         int i;
1492
1493         for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
1494                 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1495                          mlxsw_sp_port_hw_tc_stats[i].str, tc);
1496                 *p += ETH_GSTRING_LEN;
1497         }
1498 }
1499
1500 static void mlxsw_sp_port_get_strings(struct net_device *dev,
1501                                       u32 stringset, u8 *data)
1502 {
1503         u8 *p = data;
1504         int i;
1505
1506         switch (stringset) {
1507         case ETH_SS_STATS:
1508                 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
1509                         memcpy(p, mlxsw_sp_port_hw_stats[i].str,
1510                                ETH_GSTRING_LEN);
1511                         p += ETH_GSTRING_LEN;
1512                 }
1513
1514                 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1515                         mlxsw_sp_port_get_prio_strings(&p, i);
1516
1517                 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1518                         mlxsw_sp_port_get_tc_strings(&p, i);
1519
1520                 break;
1521         }
1522 }
1523
1524 static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
1525                                      enum ethtool_phys_id_state state)
1526 {
1527         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1528         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1529         char mlcr_pl[MLXSW_REG_MLCR_LEN];
1530         bool active;
1531
1532         switch (state) {
1533         case ETHTOOL_ID_ACTIVE:
1534                 active = true;
1535                 break;
1536         case ETHTOOL_ID_INACTIVE:
1537                 active = false;
1538                 break;
1539         default:
1540                 return -EOPNOTSUPP;
1541         }
1542
1543         mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
1544         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
1545 }
1546
1547 static int
1548 mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
1549                                int *p_len, enum mlxsw_reg_ppcnt_grp grp)
1550 {
1551         switch (grp) {
1552         case  MLXSW_REG_PPCNT_IEEE_8023_CNT:
1553                 *p_hw_stats = mlxsw_sp_port_hw_stats;
1554                 *p_len = MLXSW_SP_PORT_HW_STATS_LEN;
1555                 break;
1556         case MLXSW_REG_PPCNT_PRIO_CNT:
1557                 *p_hw_stats = mlxsw_sp_port_hw_prio_stats;
1558                 *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1559                 break;
1560         case MLXSW_REG_PPCNT_TC_CNT:
1561                 *p_hw_stats = mlxsw_sp_port_hw_tc_stats;
1562                 *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
1563                 break;
1564         default:
1565                 WARN_ON(1);
1566                 return -ENOTSUPP;
1567         }
1568         return 0;
1569 }
1570
1571 static void __mlxsw_sp_port_get_stats(struct net_device *dev,
1572                                       enum mlxsw_reg_ppcnt_grp grp, int prio,
1573                                       u64 *data, int data_index)
1574 {
1575         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1576         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1577         struct mlxsw_sp_port_hw_stats *hw_stats;
1578         char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
1579         int i, len;
1580         int err;
1581
1582         err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
1583         if (err)
1584                 return;
1585         mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
1586         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
1587         for (i = 0; i < len; i++)
1588                 data[data_index + i] = !err ? hw_stats[i].getter(ppcnt_pl) : 0;
1589 }
1590
1591 static void mlxsw_sp_port_get_stats(struct net_device *dev,
1592                                     struct ethtool_stats *stats, u64 *data)
1593 {
1594         int i, data_index = 0;
1595
1596         /* IEEE 802.3 Counters */
1597         __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
1598                                   data, data_index);
1599         data_index = MLXSW_SP_PORT_HW_STATS_LEN;
1600
1601         /* Per-Priority Counters */
1602         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1603                 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
1604                                           data, data_index);
1605                 data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1606         }
1607
1608         /* Per-TC Counters */
1609         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1610                 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
1611                                           data, data_index);
1612                 data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
1613         }
1614 }
1615
1616 static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
1617 {
1618         switch (sset) {
1619         case ETH_SS_STATS:
1620                 return MLXSW_SP_PORT_ETHTOOL_STATS_LEN;
1621         default:
1622                 return -EOPNOTSUPP;
1623         }
1624 }
1625
1626 struct mlxsw_sp_port_link_mode {
1627         u32 mask;
1628         u32 supported;
1629         u32 advertised;
1630         u32 speed;
1631 };
1632
1633 static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
1634         {
1635                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
1636                 .supported      = SUPPORTED_100baseT_Full,
1637                 .advertised     = ADVERTISED_100baseT_Full,
1638                 .speed          = 100,
1639         },
1640         {
1641                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX,
1642                 .speed          = 100,
1643         },
1644         {
1645                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
1646                                   MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
1647                 .supported      = SUPPORTED_1000baseKX_Full,
1648                 .advertised     = ADVERTISED_1000baseKX_Full,
1649                 .speed          = 1000,
1650         },
1651         {
1652                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
1653                 .supported      = SUPPORTED_10000baseT_Full,
1654                 .advertised     = ADVERTISED_10000baseT_Full,
1655                 .speed          = 10000,
1656         },
1657         {
1658                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
1659                                   MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
1660                 .supported      = SUPPORTED_10000baseKX4_Full,
1661                 .advertised     = ADVERTISED_10000baseKX4_Full,
1662                 .speed          = 10000,
1663         },
1664         {
1665                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1666                                   MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1667                                   MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1668                                   MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
1669                 .supported      = SUPPORTED_10000baseKR_Full,
1670                 .advertised     = ADVERTISED_10000baseKR_Full,
1671                 .speed          = 10000,
1672         },
1673         {
1674                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
1675                 .supported      = SUPPORTED_20000baseKR2_Full,
1676                 .advertised     = ADVERTISED_20000baseKR2_Full,
1677                 .speed          = 20000,
1678         },
1679         {
1680                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
1681                 .supported      = SUPPORTED_40000baseCR4_Full,
1682                 .advertised     = ADVERTISED_40000baseCR4_Full,
1683                 .speed          = 40000,
1684         },
1685         {
1686                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
1687                 .supported      = SUPPORTED_40000baseKR4_Full,
1688                 .advertised     = ADVERTISED_40000baseKR4_Full,
1689                 .speed          = 40000,
1690         },
1691         {
1692                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
1693                 .supported      = SUPPORTED_40000baseSR4_Full,
1694                 .advertised     = ADVERTISED_40000baseSR4_Full,
1695                 .speed          = 40000,
1696         },
1697         {
1698                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
1699                 .supported      = SUPPORTED_40000baseLR4_Full,
1700                 .advertised     = ADVERTISED_40000baseLR4_Full,
1701                 .speed          = 40000,
1702         },
1703         {
1704                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
1705                                   MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
1706                                   MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
1707                 .speed          = 25000,
1708         },
1709         {
1710                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
1711                                   MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
1712                                   MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
1713                 .speed          = 50000,
1714         },
1715         {
1716                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
1717                 .supported      = SUPPORTED_56000baseKR4_Full,
1718                 .advertised     = ADVERTISED_56000baseKR4_Full,
1719                 .speed          = 56000,
1720         },
1721         {
1722                 .mask           = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
1723                                   MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1724                                   MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1725                                   MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
1726                 .speed          = 100000,
1727         },
1728 };
1729
1730 #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)
1731
1732 static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto)
1733 {
1734         if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1735                               MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1736                               MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1737                               MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1738                               MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1739                               MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1740                 return SUPPORTED_FIBRE;
1741
1742         if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1743                               MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1744                               MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1745                               MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1746                               MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
1747                 return SUPPORTED_Backplane;
1748         return 0;
1749 }
1750
1751 static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto)
1752 {
1753         u32 modes = 0;
1754         int i;
1755
1756         for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1757                 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1758                         modes |= mlxsw_sp_port_link_mode[i].supported;
1759         }
1760         return modes;
1761 }
1762
1763 static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto)
1764 {
1765         u32 modes = 0;
1766         int i;
1767
1768         for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1769                 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1770                         modes |= mlxsw_sp_port_link_mode[i].advertised;
1771         }
1772         return modes;
1773 }
1774
1775 static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
1776                                             struct ethtool_cmd *cmd)
1777 {
1778         u32 speed = SPEED_UNKNOWN;
1779         u8 duplex = DUPLEX_UNKNOWN;
1780         int i;
1781
1782         if (!carrier_ok)
1783                 goto out;
1784
1785         for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1786                 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
1787                         speed = mlxsw_sp_port_link_mode[i].speed;
1788                         duplex = DUPLEX_FULL;
1789                         break;
1790                 }
1791         }
1792 out:
1793         ethtool_cmd_speed_set(cmd, speed);
1794         cmd->duplex = duplex;
1795 }
1796
1797 static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
1798 {
1799         if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1800                               MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1801                               MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1802                               MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1803                 return PORT_FIBRE;
1804
1805         if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1806                               MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1807                               MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
1808                 return PORT_DA;
1809
1810         if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1811                               MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1812                               MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1813                               MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
1814                 return PORT_NONE;
1815
1816         return PORT_OTHER;
1817 }
1818
1819 static int mlxsw_sp_port_get_settings(struct net_device *dev,
1820                                       struct ethtool_cmd *cmd)
1821 {
1822         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1823         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1824         char ptys_pl[MLXSW_REG_PTYS_LEN];
1825         u32 eth_proto_cap;
1826         u32 eth_proto_admin;
1827         u32 eth_proto_oper;
1828         int err;
1829
1830         mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1831         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1832         if (err) {
1833                 netdev_err(dev, "Failed to get proto");
1834                 return err;
1835         }
1836         mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap,
1837                               &eth_proto_admin, &eth_proto_oper);
1838
1839         cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) |
1840                          mlxsw_sp_from_ptys_supported_link(eth_proto_cap) |
1841                          SUPPORTED_Pause | SUPPORTED_Asym_Pause |
1842                          SUPPORTED_Autoneg;
1843         cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin);
1844         mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev),
1845                                         eth_proto_oper, cmd);
1846
1847         eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
1848         cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper);
1849         cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper);
1850
1851         cmd->transceiver = XCVR_INTERNAL;
1852         return 0;
1853 }
1854
1855 static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising)
1856 {
1857         u32 ptys_proto = 0;
1858         int i;
1859
1860         for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1861                 if (advertising & mlxsw_sp_port_link_mode[i].advertised)
1862                         ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1863         }
1864         return ptys_proto;
1865 }
1866
1867 static u32 mlxsw_sp_to_ptys_speed(u32 speed)
1868 {
1869         u32 ptys_proto = 0;
1870         int i;
1871
1872         for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1873                 if (speed == mlxsw_sp_port_link_mode[i].speed)
1874                         ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1875         }
1876         return ptys_proto;
1877 }
1878
1879 static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
1880 {
1881         u32 ptys_proto = 0;
1882         int i;
1883
1884         for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1885                 if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
1886                         ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1887         }
1888         return ptys_proto;
1889 }
1890
1891 static int mlxsw_sp_port_set_settings(struct net_device *dev,
1892                                       struct ethtool_cmd *cmd)
1893 {
1894         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1895         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1896         char ptys_pl[MLXSW_REG_PTYS_LEN];
1897         u32 speed;
1898         u32 eth_proto_new;
1899         u32 eth_proto_cap;
1900         u32 eth_proto_admin;
1901         int err;
1902
1903         speed = ethtool_cmd_speed(cmd);
1904
1905         eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ?
1906                 mlxsw_sp_to_ptys_advert_link(cmd->advertising) :
1907                 mlxsw_sp_to_ptys_speed(speed);
1908
1909         mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1910         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1911         if (err) {
1912                 netdev_err(dev, "Failed to get proto");
1913                 return err;
1914         }
1915         mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin, NULL);
1916
1917         eth_proto_new = eth_proto_new & eth_proto_cap;
1918         if (!eth_proto_new) {
1919                 netdev_err(dev, "Not supported proto admin requested");
1920                 return -EINVAL;
1921         }
1922         if (eth_proto_new == eth_proto_admin)
1923                 return 0;
1924
1925         mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
1926         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1927         if (err) {
1928                 netdev_err(dev, "Failed to set proto admin");
1929                 return err;
1930         }
1931
1932         if (!netif_running(dev))
1933                 return 0;
1934
1935         err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
1936         if (err) {
1937                 netdev_err(dev, "Failed to set admin status");
1938                 return err;
1939         }
1940
1941         err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
1942         if (err) {
1943                 netdev_err(dev, "Failed to set admin status");
1944                 return err;
1945         }
1946
1947         return 0;
1948 }
1949
1950 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
1951         .get_drvinfo            = mlxsw_sp_port_get_drvinfo,
1952         .get_link               = ethtool_op_get_link,
1953         .get_pauseparam         = mlxsw_sp_port_get_pauseparam,
1954         .set_pauseparam         = mlxsw_sp_port_set_pauseparam,
1955         .get_strings            = mlxsw_sp_port_get_strings,
1956         .set_phys_id            = mlxsw_sp_port_set_phys_id,
1957         .get_ethtool_stats      = mlxsw_sp_port_get_stats,
1958         .get_sset_count         = mlxsw_sp_port_get_sset_count,
1959         .get_settings           = mlxsw_sp_port_get_settings,
1960         .set_settings           = mlxsw_sp_port_set_settings,
1961 };
1962
1963 static int
1964 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
1965 {
1966         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1967         u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
1968         char ptys_pl[MLXSW_REG_PTYS_LEN];
1969         u32 eth_proto_admin;
1970
1971         eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
1972         mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
1973                             eth_proto_admin);
1974         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1975 }
1976
1977 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
1978                           enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
1979                           bool dwrr, u8 dwrr_weight)
1980 {
1981         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1982         char qeec_pl[MLXSW_REG_QEEC_LEN];
1983
1984         mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1985                             next_index);
1986         mlxsw_reg_qeec_de_set(qeec_pl, true);
1987         mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
1988         mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
1989         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1990 }
1991
1992 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
1993                                   enum mlxsw_reg_qeec_hr hr, u8 index,
1994                                   u8 next_index, u32 maxrate)
1995 {
1996         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1997         char qeec_pl[MLXSW_REG_QEEC_LEN];
1998
1999         mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
2000                             next_index);
2001         mlxsw_reg_qeec_mase_set(qeec_pl, true);
2002         mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
2003         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
2004 }
2005
2006 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
2007                               u8 switch_prio, u8 tclass)
2008 {
2009         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2010         char qtct_pl[MLXSW_REG_QTCT_LEN];
2011
2012         mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
2013                             tclass);
2014         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
2015 }
2016
2017 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
2018 {
2019         int err, i;
2020
2021         /* Setup the elements hierarcy, so that each TC is linked to
2022          * one subgroup, which are all member in the same group.
2023          */
2024         err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2025                                     MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
2026                                     0);
2027         if (err)
2028                 return err;
2029         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2030                 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2031                                             MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
2032                                             0, false, 0);
2033                 if (err)
2034                         return err;
2035         }
2036         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2037                 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2038                                             MLXSW_REG_QEEC_HIERARCY_TC, i, i,
2039                                             false, 0);
2040                 if (err)
2041                         return err;
2042         }
2043
2044         /* Make sure the max shaper is disabled in all hierarcies that
2045          * support it.
2046          */
2047         err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2048                                             MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
2049                                             MLXSW_REG_QEEC_MAS_DIS);
2050         if (err)
2051                 return err;
2052         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2053                 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2054                                                     MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
2055                                                     i, 0,
2056                                                     MLXSW_REG_QEEC_MAS_DIS);
2057                 if (err)
2058                         return err;
2059         }
2060         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2061                 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2062                                                     MLXSW_REG_QEEC_HIERARCY_TC,
2063                                                     i, i,
2064                                                     MLXSW_REG_QEEC_MAS_DIS);
2065                 if (err)
2066                         return err;
2067         }
2068
2069         /* Map all priorities to traffic class 0. */
2070         for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2071                 err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
2072                 if (err)
2073                         return err;
2074         }
2075
2076         return 0;
2077 }
2078
2079 static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
2080                                 bool split, u8 module, u8 width, u8 lane)
2081 {
2082         struct mlxsw_sp_port *mlxsw_sp_port;
2083         struct net_device *dev;
2084         size_t bytes;
2085         int err;
2086
2087         dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
2088         if (!dev)
2089                 return -ENOMEM;
2090         mlxsw_sp_port = netdev_priv(dev);
2091         mlxsw_sp_port->dev = dev;
2092         mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
2093         mlxsw_sp_port->local_port = local_port;
2094         mlxsw_sp_port->split = split;
2095         mlxsw_sp_port->mapping.module = module;
2096         mlxsw_sp_port->mapping.width = width;
2097         mlxsw_sp_port->mapping.lane = lane;
2098         bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
2099         mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
2100         if (!mlxsw_sp_port->active_vlans) {
2101                 err = -ENOMEM;
2102                 goto err_port_active_vlans_alloc;
2103         }
2104         mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
2105         if (!mlxsw_sp_port->untagged_vlans) {
2106                 err = -ENOMEM;
2107                 goto err_port_untagged_vlans_alloc;
2108         }
2109         INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
2110         INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
2111
2112         mlxsw_sp_port->pcpu_stats =
2113                 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
2114         if (!mlxsw_sp_port->pcpu_stats) {
2115                 err = -ENOMEM;
2116                 goto err_alloc_stats;
2117         }
2118
2119         dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
2120         dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
2121
2122         err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
2123         if (err) {
2124                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
2125                         mlxsw_sp_port->local_port);
2126                 goto err_dev_addr_init;
2127         }
2128
2129         netif_carrier_off(dev);
2130
2131         dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
2132                          NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
2133         dev->hw_features |= NETIF_F_HW_TC;
2134
2135         /* Each packet needs to have a Tx header (metadata) on top all other
2136          * headers.
2137          */
2138         dev->hard_header_len += MLXSW_TXHDR_LEN;
2139
2140         err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
2141         if (err) {
2142                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
2143                         mlxsw_sp_port->local_port);
2144                 goto err_port_system_port_mapping_set;
2145         }
2146
2147         err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
2148         if (err) {
2149                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
2150                         mlxsw_sp_port->local_port);
2151                 goto err_port_swid_set;
2152         }
2153
2154         err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
2155         if (err) {
2156                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
2157                         mlxsw_sp_port->local_port);
2158                 goto err_port_speed_by_width_set;
2159         }
2160
2161         err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
2162         if (err) {
2163                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
2164                         mlxsw_sp_port->local_port);
2165                 goto err_port_mtu_set;
2166         }
2167
2168         err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
2169         if (err)
2170                 goto err_port_admin_status_set;
2171
2172         err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
2173         if (err) {
2174                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
2175                         mlxsw_sp_port->local_port);
2176                 goto err_port_buffers_init;
2177         }
2178
2179         err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
2180         if (err) {
2181                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
2182                         mlxsw_sp_port->local_port);
2183                 goto err_port_ets_init;
2184         }
2185
2186         /* ETS and buffers must be initialized before DCB. */
2187         err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
2188         if (err) {
2189                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
2190                         mlxsw_sp_port->local_port);
2191                 goto err_port_dcb_init;
2192         }
2193
2194         mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
2195         err = register_netdev(dev);
2196         if (err) {
2197                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
2198                         mlxsw_sp_port->local_port);
2199                 goto err_register_netdev;
2200         }
2201
2202         err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
2203                                    mlxsw_sp_port->local_port, dev,
2204                                    mlxsw_sp_port->split, module);
2205         if (err) {
2206                 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
2207                         mlxsw_sp_port->local_port);
2208                 goto err_core_port_init;
2209         }
2210
2211         err = mlxsw_sp_port_vlan_init(mlxsw_sp_port);
2212         if (err)
2213                 goto err_port_vlan_init;
2214
2215         mlxsw_sp->ports[local_port] = mlxsw_sp_port;
2216         return 0;
2217
2218 err_port_vlan_init:
2219         mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
2220 err_core_port_init:
2221         unregister_netdev(dev);
2222 err_register_netdev:
2223         mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2224 err_port_dcb_init:
2225 err_port_ets_init:
2226 err_port_buffers_init:
2227 err_port_admin_status_set:
2228 err_port_mtu_set:
2229 err_port_speed_by_width_set:
2230 err_port_swid_set:
2231 err_port_system_port_mapping_set:
2232 err_dev_addr_init:
2233         free_percpu(mlxsw_sp_port->pcpu_stats);
2234 err_alloc_stats:
2235         kfree(mlxsw_sp_port->untagged_vlans);
2236 err_port_untagged_vlans_alloc:
2237         kfree(mlxsw_sp_port->active_vlans);
2238 err_port_active_vlans_alloc:
2239         free_netdev(dev);
2240         return err;
2241 }
2242
2243 static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
2244 {
2245         struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2246
2247         if (!mlxsw_sp_port)
2248                 return;
2249         mlxsw_sp->ports[local_port] = NULL;
2250         mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
2251         unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
2252         mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2253         mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
2254         mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
2255         mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
2256         mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
2257         free_percpu(mlxsw_sp_port->pcpu_stats);
2258         kfree(mlxsw_sp_port->untagged_vlans);
2259         kfree(mlxsw_sp_port->active_vlans);
2260         WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
2261         free_netdev(mlxsw_sp_port->dev);
2262 }
2263
2264 static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
2265 {
2266         int i;
2267
2268         for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
2269                 mlxsw_sp_port_remove(mlxsw_sp, i);
2270         kfree(mlxsw_sp->ports);
2271 }
2272
2273 static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
2274 {
2275         u8 module, width, lane;
2276         size_t alloc_size;
2277         int i;
2278         int err;
2279
2280         alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
2281         mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
2282         if (!mlxsw_sp->ports)
2283                 return -ENOMEM;
2284
2285         for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
2286                 err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
2287                                                     &width, &lane);
2288                 if (err)
2289                         goto err_port_module_info_get;
2290                 if (!width)
2291                         continue;
2292                 mlxsw_sp->port_to_module[i] = module;
2293                 err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
2294                                            lane);
2295                 if (err)
2296                         goto err_port_create;
2297         }
2298         return 0;
2299
2300 err_port_create:
2301 err_port_module_info_get:
2302         for (i--; i >= 1; i--)
2303                 mlxsw_sp_port_remove(mlxsw_sp, i);
2304         kfree(mlxsw_sp->ports);
2305         return err;
2306 }
2307
2308 static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
2309 {
2310         u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;
2311
2312         return local_port - offset;
2313 }
2314
2315 static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
2316                                       u8 module, unsigned int count)
2317 {
2318         u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
2319         int err, i;
2320
2321         for (i = 0; i < count; i++) {
2322                 err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module,
2323                                                width, i * width);
2324                 if (err)
2325                         goto err_port_module_map;
2326         }
2327
2328         for (i = 0; i < count; i++) {
2329                 err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0);
2330                 if (err)
2331                         goto err_port_swid_set;
2332         }
2333
2334         for (i = 0; i < count; i++) {
2335                 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
2336                                            module, width, i * width);
2337                 if (err)
2338                         goto err_port_create;
2339         }
2340
2341         return 0;
2342
2343 err_port_create:
2344         for (i--; i >= 0; i--)
2345                 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2346         i = count;
2347 err_port_swid_set:
2348         for (i--; i >= 0; i--)
2349                 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i,
2350                                          MLXSW_PORT_SWID_DISABLED_PORT);
2351         i = count;
2352 err_port_module_map:
2353         for (i--; i >= 0; i--)
2354                 mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i);
2355         return err;
2356 }
2357
2358 static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
2359                                          u8 base_port, unsigned int count)
2360 {
2361         u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
2362         int i;
2363
2364         /* Split by four means we need to re-create two ports, otherwise
2365          * only one.
2366          */
2367         count = count / 2;
2368
2369         for (i = 0; i < count; i++) {
2370                 local_port = base_port + i * 2;
2371                 module = mlxsw_sp->port_to_module[local_port];
2372
2373                 mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
2374                                          0);
2375         }
2376
2377         for (i = 0; i < count; i++)
2378                 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0);
2379
2380         for (i = 0; i < count; i++) {
2381                 local_port = base_port + i * 2;
2382                 module = mlxsw_sp->port_to_module[local_port];
2383
2384                 mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
2385                                      width, 0);
2386         }
2387 }
2388
2389 static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
2390                                unsigned int count)
2391 {
2392         struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2393         struct mlxsw_sp_port *mlxsw_sp_port;
2394         u8 module, cur_width, base_port;
2395         int i;
2396         int err;
2397
2398         mlxsw_sp_port = mlxsw_sp->ports[local_port];
2399         if (!mlxsw_sp_port) {
2400                 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2401                         local_port);
2402                 return -EINVAL;
2403         }
2404
2405         module = mlxsw_sp_port->mapping.module;
2406         cur_width = mlxsw_sp_port->mapping.width;
2407
2408         if (count != 2 && count != 4) {
2409                 netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
2410                 return -EINVAL;
2411         }
2412
2413         if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
2414                 netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
2415                 return -EINVAL;
2416         }
2417
2418         /* Make sure we have enough slave (even) ports for the split. */
2419         if (count == 2) {
2420                 base_port = local_port;
2421                 if (mlxsw_sp->ports[base_port + 1]) {
2422                         netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2423                         return -EINVAL;
2424                 }
2425         } else {
2426                 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2427                 if (mlxsw_sp->ports[base_port + 1] ||
2428                     mlxsw_sp->ports[base_port + 3]) {
2429                         netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2430                         return -EINVAL;
2431                 }
2432         }
2433
2434         for (i = 0; i < count; i++)
2435                 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2436
2437         err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
2438         if (err) {
2439                 dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
2440                 goto err_port_split_create;
2441         }
2442
2443         return 0;
2444
2445 err_port_split_create:
2446         mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2447         return err;
2448 }
2449
2450 static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
2451 {
2452         struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2453         struct mlxsw_sp_port *mlxsw_sp_port;
2454         u8 cur_width, base_port;
2455         unsigned int count;
2456         int i;
2457
2458         mlxsw_sp_port = mlxsw_sp->ports[local_port];
2459         if (!mlxsw_sp_port) {
2460                 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2461                         local_port);
2462                 return -EINVAL;
2463         }
2464
2465         if (!mlxsw_sp_port->split) {
2466                 netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
2467                 return -EINVAL;
2468         }
2469
2470         cur_width = mlxsw_sp_port->mapping.width;
2471         count = cur_width == 1 ? 4 : 2;
2472
2473         base_port = mlxsw_sp_cluster_base_port_get(local_port);
2474
2475         /* Determine which ports to remove. */
2476         if (count == 2 && local_port >= base_port + 2)
2477                 base_port = base_port + 2;
2478
2479         for (i = 0; i < count; i++)
2480                 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2481
2482         mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2483
2484         return 0;
2485 }
2486
2487 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
2488                                      char *pude_pl, void *priv)
2489 {
2490         struct mlxsw_sp *mlxsw_sp = priv;
2491         struct mlxsw_sp_port *mlxsw_sp_port;
2492         enum mlxsw_reg_pude_oper_status status;
2493         u8 local_port;
2494
2495         local_port = mlxsw_reg_pude_local_port_get(pude_pl);
2496         mlxsw_sp_port = mlxsw_sp->ports[local_port];
2497         if (!mlxsw_sp_port)
2498                 return;
2499
2500         status = mlxsw_reg_pude_oper_status_get(pude_pl);
2501         if (status == MLXSW_PORT_OPER_STATUS_UP) {
2502                 netdev_info(mlxsw_sp_port->dev, "link up\n");
2503                 netif_carrier_on(mlxsw_sp_port->dev);
2504         } else {
2505                 netdev_info(mlxsw_sp_port->dev, "link down\n");
2506                 netif_carrier_off(mlxsw_sp_port->dev);
2507         }
2508 }
2509
2510 static struct mlxsw_event_listener mlxsw_sp_pude_event = {
2511         .func = mlxsw_sp_pude_event_func,
2512         .trap_id = MLXSW_TRAP_ID_PUDE,
2513 };
2514
2515 static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
2516                                    enum mlxsw_event_trap_id trap_id)
2517 {
2518         struct mlxsw_event_listener *el;
2519         char hpkt_pl[MLXSW_REG_HPKT_LEN];
2520         int err;
2521
2522         switch (trap_id) {
2523         case MLXSW_TRAP_ID_PUDE:
2524                 el = &mlxsw_sp_pude_event;
2525                 break;
2526         }
2527         err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
2528         if (err)
2529                 return err;
2530
2531         mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
2532         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2533         if (err)
2534                 goto err_event_trap_set;
2535
2536         return 0;
2537
2538 err_event_trap_set:
2539         mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2540         return err;
2541 }
2542
2543 static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
2544                                       enum mlxsw_event_trap_id trap_id)
2545 {
2546         struct mlxsw_event_listener *el;
2547
2548         switch (trap_id) {
2549         case MLXSW_TRAP_ID_PUDE:
2550                 el = &mlxsw_sp_pude_event;
2551                 break;
2552         }
2553         mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2554 }
2555
2556 static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
2557                                       void *priv)
2558 {
2559         struct mlxsw_sp *mlxsw_sp = priv;
2560         struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2561         struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
2562
2563         if (unlikely(!mlxsw_sp_port)) {
2564                 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
2565                                      local_port);
2566                 return;
2567         }
2568
2569         skb->dev = mlxsw_sp_port->dev;
2570
2571         pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
2572         u64_stats_update_begin(&pcpu_stats->syncp);
2573         pcpu_stats->rx_packets++;
2574         pcpu_stats->rx_bytes += skb->len;
2575         u64_stats_update_end(&pcpu_stats->syncp);
2576
2577         skb->protocol = eth_type_trans(skb, skb->dev);
2578         netif_receive_skb(skb);
2579 }
2580
2581 static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
2582         {
2583                 .func = mlxsw_sp_rx_listener_func,
2584                 .local_port = MLXSW_PORT_DONT_CARE,
2585                 .trap_id = MLXSW_TRAP_ID_FDB_MC,
2586         },
2587         /* Traps for specific L2 packet types, not trapped as FDB MC */
2588         {
2589                 .func = mlxsw_sp_rx_listener_func,
2590                 .local_port = MLXSW_PORT_DONT_CARE,
2591                 .trap_id = MLXSW_TRAP_ID_STP,
2592         },
2593         {
2594                 .func = mlxsw_sp_rx_listener_func,
2595                 .local_port = MLXSW_PORT_DONT_CARE,
2596                 .trap_id = MLXSW_TRAP_ID_LACP,
2597         },
2598         {
2599                 .func = mlxsw_sp_rx_listener_func,
2600                 .local_port = MLXSW_PORT_DONT_CARE,
2601                 .trap_id = MLXSW_TRAP_ID_EAPOL,
2602         },
2603         {
2604                 .func = mlxsw_sp_rx_listener_func,
2605                 .local_port = MLXSW_PORT_DONT_CARE,
2606                 .trap_id = MLXSW_TRAP_ID_LLDP,
2607         },
2608         {
2609                 .func = mlxsw_sp_rx_listener_func,
2610                 .local_port = MLXSW_PORT_DONT_CARE,
2611                 .trap_id = MLXSW_TRAP_ID_MMRP,
2612         },
2613         {
2614                 .func = mlxsw_sp_rx_listener_func,
2615                 .local_port = MLXSW_PORT_DONT_CARE,
2616                 .trap_id = MLXSW_TRAP_ID_MVRP,
2617         },
2618         {
2619                 .func = mlxsw_sp_rx_listener_func,
2620                 .local_port = MLXSW_PORT_DONT_CARE,
2621                 .trap_id = MLXSW_TRAP_ID_RPVST,
2622         },
2623         {
2624                 .func = mlxsw_sp_rx_listener_func,
2625                 .local_port = MLXSW_PORT_DONT_CARE,
2626                 .trap_id = MLXSW_TRAP_ID_DHCP,
2627         },
2628         {
2629                 .func = mlxsw_sp_rx_listener_func,
2630                 .local_port = MLXSW_PORT_DONT_CARE,
2631                 .trap_id = MLXSW_TRAP_ID_IGMP_QUERY,
2632         },
2633         {
2634                 .func = mlxsw_sp_rx_listener_func,
2635                 .local_port = MLXSW_PORT_DONT_CARE,
2636                 .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT,
2637         },
2638         {
2639                 .func = mlxsw_sp_rx_listener_func,
2640                 .local_port = MLXSW_PORT_DONT_CARE,
2641                 .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT,
2642         },
2643         {
2644                 .func = mlxsw_sp_rx_listener_func,
2645                 .local_port = MLXSW_PORT_DONT_CARE,
2646                 .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE,
2647         },
2648         {
2649                 .func = mlxsw_sp_rx_listener_func,
2650                 .local_port = MLXSW_PORT_DONT_CARE,
2651                 .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
2652         },
2653         {
2654                 .func = mlxsw_sp_rx_listener_func,
2655                 .local_port = MLXSW_PORT_DONT_CARE,
2656                 .trap_id = MLXSW_TRAP_ID_ARPBC,
2657         },
2658         {
2659                 .func = mlxsw_sp_rx_listener_func,
2660                 .local_port = MLXSW_PORT_DONT_CARE,
2661                 .trap_id = MLXSW_TRAP_ID_ARPUC,
2662         },
2663         {
2664                 .func = mlxsw_sp_rx_listener_func,
2665                 .local_port = MLXSW_PORT_DONT_CARE,
2666                 .trap_id = MLXSW_TRAP_ID_IP2ME,
2667         },
2668         {
2669                 .func = mlxsw_sp_rx_listener_func,
2670                 .local_port = MLXSW_PORT_DONT_CARE,
2671                 .trap_id = MLXSW_TRAP_ID_RTR_INGRESS0,
2672         },
2673         {
2674                 .func = mlxsw_sp_rx_listener_func,
2675                 .local_port = MLXSW_PORT_DONT_CARE,
2676                 .trap_id = MLXSW_TRAP_ID_HOST_MISS_IPV4,
2677         },
2678 };
2679
2680 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
2681 {
2682         char htgt_pl[MLXSW_REG_HTGT_LEN];
2683         char hpkt_pl[MLXSW_REG_HPKT_LEN];
2684         int i;
2685         int err;
2686
2687         mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
2688         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2689         if (err)
2690                 return err;
2691
2692         mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
2693         err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2694         if (err)
2695                 return err;
2696
2697         for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2698                 err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
2699                                                       &mlxsw_sp_rx_listener[i],
2700                                                       mlxsw_sp);
2701                 if (err)
2702                         goto err_rx_listener_register;
2703
2704                 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
2705                                     mlxsw_sp_rx_listener[i].trap_id);
2706                 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2707                 if (err)
2708                         goto err_rx_trap_set;
2709         }
2710         return 0;
2711
2712 err_rx_trap_set:
2713         mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2714                                           &mlxsw_sp_rx_listener[i],
2715                                           mlxsw_sp);
2716 err_rx_listener_register:
2717         for (i--; i >= 0; i--) {
2718                 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2719                                     mlxsw_sp_rx_listener[i].trap_id);
2720                 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2721
2722                 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2723                                                   &mlxsw_sp_rx_listener[i],
2724                                                   mlxsw_sp);
2725         }
2726         return err;
2727 }
2728
2729 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
2730 {
2731         char hpkt_pl[MLXSW_REG_HPKT_LEN];
2732         int i;
2733
2734         for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2735                 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2736                                     mlxsw_sp_rx_listener[i].trap_id);
2737                 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2738
2739                 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2740                                                   &mlxsw_sp_rx_listener[i],
2741                                                   mlxsw_sp);
2742         }
2743 }
2744
2745 static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
2746                                  enum mlxsw_reg_sfgc_type type,
2747                                  enum mlxsw_reg_sfgc_bridge_type bridge_type)
2748 {
2749         enum mlxsw_flood_table_type table_type;
2750         enum mlxsw_sp_flood_table flood_table;
2751         char sfgc_pl[MLXSW_REG_SFGC_LEN];
2752
2753         if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
2754                 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
2755         else
2756                 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
2757
2758         if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
2759                 flood_table = MLXSW_SP_FLOOD_TABLE_UC;
2760         else
2761                 flood_table = MLXSW_SP_FLOOD_TABLE_BM;
2762
2763         mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
2764                             flood_table);
2765         return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
2766 }
2767
2768 static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
2769 {
2770         int type, err;
2771
2772         for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
2773                 if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
2774                         continue;
2775
2776                 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2777                                             MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
2778                 if (err)
2779                         return err;
2780
2781                 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2782                                             MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
2783                 if (err)
2784                         return err;
2785         }
2786
2787         return 0;
2788 }
2789
2790 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
2791 {
2792         char slcr_pl[MLXSW_REG_SLCR_LEN];
2793
2794         mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
2795                                      MLXSW_REG_SLCR_LAG_HASH_DMAC |
2796                                      MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
2797                                      MLXSW_REG_SLCR_LAG_HASH_VLANID |
2798                                      MLXSW_REG_SLCR_LAG_HASH_SIP |
2799                                      MLXSW_REG_SLCR_LAG_HASH_DIP |
2800                                      MLXSW_REG_SLCR_LAG_HASH_SPORT |
2801                                      MLXSW_REG_SLCR_LAG_HASH_DPORT |
2802                                      MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
2803         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
2804 }
2805
2806 static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
2807                          const struct mlxsw_bus_info *mlxsw_bus_info)
2808 {
2809         struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2810         int err;
2811
2812         mlxsw_sp->core = mlxsw_core;
2813         mlxsw_sp->bus_info = mlxsw_bus_info;
2814         INIT_LIST_HEAD(&mlxsw_sp->fids);
2815         INIT_LIST_HEAD(&mlxsw_sp->vfids.list);
2816         INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);
2817
2818         err = mlxsw_sp_base_mac_get(mlxsw_sp);
2819         if (err) {
2820                 dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
2821                 return err;
2822         }
2823
2824         err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2825         if (err) {
2826                 dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
2827                 return err;
2828         }
2829
2830         err = mlxsw_sp_traps_init(mlxsw_sp);
2831         if (err) {
2832                 dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
2833                 goto err_rx_listener_register;
2834         }
2835
2836         err = mlxsw_sp_flood_init(mlxsw_sp);
2837         if (err) {
2838                 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
2839                 goto err_flood_init;
2840         }
2841
2842         err = mlxsw_sp_buffers_init(mlxsw_sp);
2843         if (err) {
2844                 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
2845                 goto err_buffers_init;
2846         }
2847
2848         err = mlxsw_sp_lag_init(mlxsw_sp);
2849         if (err) {
2850                 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
2851                 goto err_lag_init;
2852         }
2853
2854         err = mlxsw_sp_switchdev_init(mlxsw_sp);
2855         if (err) {
2856                 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
2857                 goto err_switchdev_init;
2858         }
2859
2860         err = mlxsw_sp_router_init(mlxsw_sp);
2861         if (err) {
2862                 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
2863                 goto err_router_init;
2864         }
2865
2866         err = mlxsw_sp_span_init(mlxsw_sp);
2867         if (err) {
2868                 dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
2869                 goto err_span_init;
2870         }
2871
2872         err = mlxsw_sp_ports_create(mlxsw_sp);
2873         if (err) {
2874                 dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
2875                 goto err_ports_create;
2876         }
2877
2878         return 0;
2879
2880 err_ports_create:
2881         mlxsw_sp_span_fini(mlxsw_sp);
2882 err_span_init:
2883         mlxsw_sp_router_fini(mlxsw_sp);
2884 err_router_init:
2885         mlxsw_sp_switchdev_fini(mlxsw_sp);
2886 err_switchdev_init:
2887 err_lag_init:
2888         mlxsw_sp_buffers_fini(mlxsw_sp);
2889 err_buffers_init:
2890 err_flood_init:
2891         mlxsw_sp_traps_fini(mlxsw_sp);
2892 err_rx_listener_register:
2893         mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2894         return err;
2895 }
2896
2897 static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
2898 {
2899         struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2900         int i;
2901
2902         mlxsw_sp_ports_remove(mlxsw_sp);
2903         mlxsw_sp_span_fini(mlxsw_sp);
2904         mlxsw_sp_router_fini(mlxsw_sp);
2905         mlxsw_sp_switchdev_fini(mlxsw_sp);
2906         mlxsw_sp_buffers_fini(mlxsw_sp);
2907         mlxsw_sp_traps_fini(mlxsw_sp);
2908         mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2909         WARN_ON(!list_empty(&mlxsw_sp->vfids.list));
2910         WARN_ON(!list_empty(&mlxsw_sp->fids));
2911         for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
2912                 WARN_ON_ONCE(mlxsw_sp->rifs[i]);
2913 }
2914
2915 static struct mlxsw_config_profile mlxsw_sp_config_profile = {
2916         .used_max_vepa_channels         = 1,
2917         .max_vepa_channels              = 0,
2918         .used_max_lag                   = 1,
2919         .max_lag                        = MLXSW_SP_LAG_MAX,
2920         .used_max_port_per_lag          = 1,
2921         .max_port_per_lag               = MLXSW_SP_PORT_PER_LAG_MAX,
2922         .used_max_mid                   = 1,
2923         .max_mid                        = MLXSW_SP_MID_MAX,
2924         .used_max_pgt                   = 1,
2925         .max_pgt                        = 0,
2926         .used_max_system_port           = 1,
2927         .max_system_port                = 64,
2928         .used_max_vlan_groups           = 1,
2929         .max_vlan_groups                = 127,
2930         .used_max_regions               = 1,
2931         .max_regions                    = 400,
2932         .used_flood_tables              = 1,
2933         .used_flood_mode                = 1,
2934         .flood_mode                     = 3,
2935         .max_fid_offset_flood_tables    = 2,
2936         .fid_offset_flood_table_size    = VLAN_N_VID - 1,
2937         .max_fid_flood_tables           = 2,
2938         .fid_flood_table_size           = MLXSW_SP_VFID_MAX,
2939         .used_max_ib_mc                 = 1,
2940         .max_ib_mc                      = 0,
2941         .used_max_pkey                  = 1,
2942         .max_pkey                       = 0,
2943         .used_kvd_sizes                 = 1,
2944         .kvd_linear_size                = MLXSW_SP_KVD_LINEAR_SIZE,
2945         .kvd_hash_single_size           = MLXSW_SP_KVD_HASH_SINGLE_SIZE,
2946         .kvd_hash_double_size           = MLXSW_SP_KVD_HASH_DOUBLE_SIZE,
2947         .swid_config                    = {
2948                 {
2949                         .used_type      = 1,
2950                         .type           = MLXSW_PORT_SWID_TYPE_ETH,
2951                 }
2952         },
2953         .resource_query_enable          = 1,
2954 };
2955
2956 static struct mlxsw_driver mlxsw_sp_driver = {
2957         .kind                           = MLXSW_DEVICE_KIND_SPECTRUM,
2958         .owner                          = THIS_MODULE,
2959         .priv_size                      = sizeof(struct mlxsw_sp),
2960         .init                           = mlxsw_sp_init,
2961         .fini                           = mlxsw_sp_fini,
2962         .port_split                     = mlxsw_sp_port_split,
2963         .port_unsplit                   = mlxsw_sp_port_unsplit,
2964         .sb_pool_get                    = mlxsw_sp_sb_pool_get,
2965         .sb_pool_set                    = mlxsw_sp_sb_pool_set,
2966         .sb_port_pool_get               = mlxsw_sp_sb_port_pool_get,
2967         .sb_port_pool_set               = mlxsw_sp_sb_port_pool_set,
2968         .sb_tc_pool_bind_get            = mlxsw_sp_sb_tc_pool_bind_get,
2969         .sb_tc_pool_bind_set            = mlxsw_sp_sb_tc_pool_bind_set,
2970         .sb_occ_snapshot                = mlxsw_sp_sb_occ_snapshot,
2971         .sb_occ_max_clear               = mlxsw_sp_sb_occ_max_clear,
2972         .sb_occ_port_pool_get           = mlxsw_sp_sb_occ_port_pool_get,
2973         .sb_occ_tc_port_bind_get        = mlxsw_sp_sb_occ_tc_port_bind_get,
2974         .txhdr_construct                = mlxsw_sp_txhdr_construct,
2975         .txhdr_len                      = MLXSW_TXHDR_LEN,
2976         .profile                        = &mlxsw_sp_config_profile,
2977 };
2978
2979 static bool mlxsw_sp_port_dev_check(const struct net_device *dev)
2980 {
2981         return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
2982 }
2983
2984 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
2985 {
2986         struct net_device *lower_dev;
2987         struct list_head *iter;
2988
2989         if (mlxsw_sp_port_dev_check(dev))
2990                 return netdev_priv(dev);
2991
2992         netdev_for_each_all_lower_dev(dev, lower_dev, iter) {
2993                 if (mlxsw_sp_port_dev_check(lower_dev))
2994                         return netdev_priv(lower_dev);
2995         }
2996         return NULL;
2997 }
2998
2999 static struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
3000 {
3001         struct mlxsw_sp_port *mlxsw_sp_port;
3002
3003         mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
3004         return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
3005 }
3006
3007 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
3008 {
3009         struct net_device *lower_dev;
3010         struct list_head *iter;
3011
3012         if (mlxsw_sp_port_dev_check(dev))
3013                 return netdev_priv(dev);
3014
3015         netdev_for_each_all_lower_dev_rcu(dev, lower_dev, iter) {
3016                 if (mlxsw_sp_port_dev_check(lower_dev))
3017                         return netdev_priv(lower_dev);
3018         }
3019         return NULL;
3020 }
3021
3022 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
3023 {
3024         struct mlxsw_sp_port *mlxsw_sp_port;
3025
3026         rcu_read_lock();
3027         mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
3028         if (mlxsw_sp_port)
3029                 dev_hold(mlxsw_sp_port->dev);
3030         rcu_read_unlock();
3031         return mlxsw_sp_port;
3032 }
3033
3034 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
3035 {
3036         dev_put(mlxsw_sp_port->dev);
3037 }
3038
3039 static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *r,
3040                                        unsigned long event)
3041 {
3042         switch (event) {
3043         case NETDEV_UP:
3044                 if (!r)
3045                         return true;
3046                 r->ref_count++;
3047                 return false;
3048         case NETDEV_DOWN:
3049                 if (r && --r->ref_count == 0)
3050                         return true;
3051                 /* It is possible we already removed the RIF ourselves
3052                  * if it was assigned to a netdev that is now a bridge
3053                  * or LAG slave.
3054                  */
3055                 return false;
3056         }
3057
3058         return false;
3059 }
3060
3061 static int mlxsw_sp_avail_rif_get(struct mlxsw_sp *mlxsw_sp)
3062 {
3063         int i;
3064
3065         for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
3066                 if (!mlxsw_sp->rifs[i])
3067                         return i;
3068
3069         return MLXSW_SP_RIF_MAX;
3070 }
3071
3072 static void mlxsw_sp_vport_rif_sp_attr_get(struct mlxsw_sp_port *mlxsw_sp_vport,
3073                                            bool *p_lagged, u16 *p_system_port)
3074 {
3075         u8 local_port = mlxsw_sp_vport->local_port;
3076
3077         *p_lagged = mlxsw_sp_vport->lagged;
3078         *p_system_port = *p_lagged ? mlxsw_sp_vport->lag_id : local_port;
3079 }
3080
3081 static int mlxsw_sp_vport_rif_sp_op(struct mlxsw_sp_port *mlxsw_sp_vport,
3082                                     struct net_device *l3_dev, u16 rif,
3083                                     bool create)
3084 {
3085         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3086         bool lagged = mlxsw_sp_vport->lagged;
3087         char ritr_pl[MLXSW_REG_RITR_LEN];
3088         u16 system_port;
3089
3090         mlxsw_reg_ritr_pack(ritr_pl, create, MLXSW_REG_RITR_SP_IF, rif,
3091                             l3_dev->mtu, l3_dev->dev_addr);
3092
3093         mlxsw_sp_vport_rif_sp_attr_get(mlxsw_sp_vport, &lagged, &system_port);
3094         mlxsw_reg_ritr_sp_if_pack(ritr_pl, lagged, system_port,
3095                                   mlxsw_sp_vport_vid_get(mlxsw_sp_vport));
3096
3097         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3098 }
3099
3100 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
3101
3102 static struct mlxsw_sp_fid *
3103 mlxsw_sp_rfid_alloc(u16 fid, struct net_device *l3_dev)
3104 {
3105         struct mlxsw_sp_fid *f;
3106
3107         f = kzalloc(sizeof(*f), GFP_KERNEL);
3108         if (!f)
3109                 return NULL;
3110
3111         f->leave = mlxsw_sp_vport_rif_sp_leave;
3112         f->ref_count = 0;
3113         f->dev = l3_dev;
3114         f->fid = fid;
3115
3116         return f;
3117 }
3118
3119 static struct mlxsw_sp_rif *
3120 mlxsw_sp_rif_alloc(u16 rif, struct net_device *l3_dev, struct mlxsw_sp_fid *f)
3121 {
3122         struct mlxsw_sp_rif *r;
3123
3124         r = kzalloc(sizeof(*r), GFP_KERNEL);
3125         if (!r)
3126                 return NULL;
3127
3128         ether_addr_copy(r->addr, l3_dev->dev_addr);
3129         r->mtu = l3_dev->mtu;
3130         r->ref_count = 1;
3131         r->dev = l3_dev;
3132         r->rif = rif;
3133         r->f = f;
3134
3135         return r;
3136 }
3137
3138 static struct mlxsw_sp_rif *
3139 mlxsw_sp_vport_rif_sp_create(struct mlxsw_sp_port *mlxsw_sp_vport,
3140                              struct net_device *l3_dev)
3141 {
3142         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3143         struct mlxsw_sp_fid *f;
3144         struct mlxsw_sp_rif *r;
3145         u16 fid, rif;
3146         int err;
3147
3148         rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3149         if (rif == MLXSW_SP_RIF_MAX)
3150                 return ERR_PTR(-ERANGE);
3151
3152         err = mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, true);
3153         if (err)
3154                 return ERR_PTR(err);
3155
3156         fid = mlxsw_sp_rif_sp_to_fid(rif);
3157         err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, true);
3158         if (err)
3159                 goto err_rif_fdb_op;
3160
3161         f = mlxsw_sp_rfid_alloc(fid, l3_dev);
3162         if (!f) {
3163                 err = -ENOMEM;
3164                 goto err_rfid_alloc;
3165         }
3166
3167         r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3168         if (!r) {
3169                 err = -ENOMEM;
3170                 goto err_rif_alloc;
3171         }
3172
3173         f->r = r;
3174         mlxsw_sp->rifs[rif] = r;
3175
3176         return r;
3177
3178 err_rif_alloc:
3179         kfree(f);
3180 err_rfid_alloc:
3181         mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3182 err_rif_fdb_op:
3183         mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3184         return ERR_PTR(err);
3185 }
3186
3187 static void mlxsw_sp_vport_rif_sp_destroy(struct mlxsw_sp_port *mlxsw_sp_vport,
3188                                           struct mlxsw_sp_rif *r)
3189 {
3190         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3191         struct net_device *l3_dev = r->dev;
3192         struct mlxsw_sp_fid *f = r->f;
3193         u16 fid = f->fid;
3194         u16 rif = r->rif;
3195
3196         mlxsw_sp->rifs[rif] = NULL;
3197         f->r = NULL;
3198
3199         kfree(r);
3200
3201         kfree(f);
3202
3203         mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3204
3205         mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3206 }
3207
3208 static int mlxsw_sp_vport_rif_sp_join(struct mlxsw_sp_port *mlxsw_sp_vport,
3209                                       struct net_device *l3_dev)
3210 {
3211         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3212         struct mlxsw_sp_rif *r;
3213
3214         r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev);
3215         if (!r) {
3216                 r = mlxsw_sp_vport_rif_sp_create(mlxsw_sp_vport, l3_dev);
3217                 if (IS_ERR(r))
3218                         return PTR_ERR(r);
3219         }
3220
3221         mlxsw_sp_vport_fid_set(mlxsw_sp_vport, r->f);
3222         r->f->ref_count++;
3223
3224         netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", r->f->fid);
3225
3226         return 0;
3227 }
3228
3229 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
3230 {
3231         struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3232
3233         netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
3234
3235         mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
3236         if (--f->ref_count == 0)
3237                 mlxsw_sp_vport_rif_sp_destroy(mlxsw_sp_vport, f->r);
3238 }
3239
3240 static int mlxsw_sp_inetaddr_vport_event(struct net_device *l3_dev,
3241                                          struct net_device *port_dev,
3242                                          unsigned long event, u16 vid)
3243 {
3244         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(port_dev);
3245         struct mlxsw_sp_port *mlxsw_sp_vport;
3246
3247         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3248         if (WARN_ON(!mlxsw_sp_vport))
3249                 return -EINVAL;
3250
3251         switch (event) {
3252         case NETDEV_UP:
3253                 return mlxsw_sp_vport_rif_sp_join(mlxsw_sp_vport, l3_dev);
3254         case NETDEV_DOWN:
3255                 mlxsw_sp_vport_rif_sp_leave(mlxsw_sp_vport);
3256                 break;
3257         }
3258
3259         return 0;
3260 }
3261
3262 static int mlxsw_sp_inetaddr_port_event(struct net_device *port_dev,
3263                                         unsigned long event)
3264 {
3265         if (netif_is_bridge_port(port_dev) || netif_is_lag_port(port_dev))
3266                 return 0;
3267
3268         return mlxsw_sp_inetaddr_vport_event(port_dev, port_dev, event, 1);
3269 }
3270
3271 static int __mlxsw_sp_inetaddr_lag_event(struct net_device *l3_dev,
3272                                          struct net_device *lag_dev,
3273                                          unsigned long event, u16 vid)
3274 {
3275         struct net_device *port_dev;
3276         struct list_head *iter;
3277         int err;
3278
3279         netdev_for_each_lower_dev(lag_dev, port_dev, iter) {
3280                 if (mlxsw_sp_port_dev_check(port_dev)) {
3281                         err = mlxsw_sp_inetaddr_vport_event(l3_dev, port_dev,
3282                                                             event, vid);
3283                         if (err)
3284                                 return err;
3285                 }
3286         }
3287
3288         return 0;
3289 }
3290
3291 static int mlxsw_sp_inetaddr_lag_event(struct net_device *lag_dev,
3292                                        unsigned long event)
3293 {
3294         if (netif_is_bridge_port(lag_dev))
3295                 return 0;
3296
3297         return __mlxsw_sp_inetaddr_lag_event(lag_dev, lag_dev, event, 1);
3298 }
3299
3300 static struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp,
3301                                                     struct net_device *l3_dev)
3302 {
3303         u16 fid;
3304
3305         if (is_vlan_dev(l3_dev))
3306                 fid = vlan_dev_vlan_id(l3_dev);
3307         else if (mlxsw_sp->master_bridge.dev == l3_dev)
3308                 fid = 1;
3309         else
3310                 return mlxsw_sp_vfid_find(mlxsw_sp, l3_dev);
3311
3312         return mlxsw_sp_fid_find(mlxsw_sp, fid);
3313 }
3314
3315 static enum mlxsw_reg_ritr_if_type mlxsw_sp_rif_type_get(u16 fid)
3316 {
3317         if (mlxsw_sp_fid_is_vfid(fid))
3318                 return MLXSW_REG_RITR_FID_IF;
3319         else
3320                 return MLXSW_REG_RITR_VLAN_IF;
3321 }
3322
3323 static int mlxsw_sp_rif_bridge_op(struct mlxsw_sp *mlxsw_sp,
3324                                   struct net_device *l3_dev,
3325                                   u16 fid, u16 rif,
3326                                   bool create)
3327 {
3328         enum mlxsw_reg_ritr_if_type rif_type;
3329         char ritr_pl[MLXSW_REG_RITR_LEN];
3330
3331         rif_type = mlxsw_sp_rif_type_get(fid);
3332         mlxsw_reg_ritr_pack(ritr_pl, create, rif_type, rif, l3_dev->mtu,
3333                             l3_dev->dev_addr);
3334         mlxsw_reg_ritr_fid_set(ritr_pl, rif_type, fid);
3335
3336         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3337 }
3338
3339 static int mlxsw_sp_rif_bridge_create(struct mlxsw_sp *mlxsw_sp,
3340                                       struct net_device *l3_dev,
3341                                       struct mlxsw_sp_fid *f)
3342 {
3343         struct mlxsw_sp_rif *r;
3344         u16 rif;
3345         int err;
3346
3347         rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3348         if (rif == MLXSW_SP_RIF_MAX)
3349                 return -ERANGE;
3350
3351         err = mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, true);
3352         if (err)
3353                 return err;
3354
3355         err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, true);
3356         if (err)
3357                 goto err_rif_fdb_op;
3358
3359         r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3360         if (!r) {
3361                 err = -ENOMEM;
3362                 goto err_rif_alloc;
3363         }
3364
3365         f->r = r;
3366         mlxsw_sp->rifs[rif] = r;
3367
3368         netdev_dbg(l3_dev, "RIF=%d created\n", rif);
3369
3370         return 0;
3371
3372 err_rif_alloc:
3373         mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3374 err_rif_fdb_op:
3375         mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3376         return err;
3377 }
3378
3379 void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
3380                                  struct mlxsw_sp_rif *r)
3381 {
3382         struct net_device *l3_dev = r->dev;
3383         struct mlxsw_sp_fid *f = r->f;
3384         u16 rif = r->rif;
3385
3386         mlxsw_sp->rifs[rif] = NULL;
3387         f->r = NULL;
3388
3389         kfree(r);
3390
3391         mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3392
3393         mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3394
3395         netdev_dbg(l3_dev, "RIF=%d destroyed\n", rif);
3396 }
3397
3398 static int mlxsw_sp_inetaddr_bridge_event(struct net_device *l3_dev,
3399                                           struct net_device *br_dev,
3400                                           unsigned long event)
3401 {
3402         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev);
3403         struct mlxsw_sp_fid *f;
3404
3405         /* FID can either be an actual FID if the L3 device is the
3406          * VLAN-aware bridge or a VLAN device on top. Otherwise, the
3407          * L3 device is a VLAN-unaware bridge and we get a vFID.
3408          */
3409         f = mlxsw_sp_bridge_fid_get(mlxsw_sp, l3_dev);
3410         if (WARN_ON(!f))
3411                 return -EINVAL;
3412
3413         switch (event) {
3414         case NETDEV_UP:
3415                 return mlxsw_sp_rif_bridge_create(mlxsw_sp, l3_dev, f);
3416         case NETDEV_DOWN:
3417                 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
3418                 break;
3419         }
3420
3421         return 0;
3422 }
3423
3424 static int mlxsw_sp_inetaddr_vlan_event(struct net_device *vlan_dev,
3425                                         unsigned long event)
3426 {
3427         struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
3428         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev);
3429         u16 vid = vlan_dev_vlan_id(vlan_dev);
3430
3431         if (mlxsw_sp_port_dev_check(real_dev))
3432                 return mlxsw_sp_inetaddr_vport_event(vlan_dev, real_dev, event,
3433                                                      vid);
3434         else if (netif_is_lag_master(real_dev))
3435                 return __mlxsw_sp_inetaddr_lag_event(vlan_dev, real_dev, event,
3436                                                      vid);
3437         else if (netif_is_bridge_master(real_dev) &&
3438                  mlxsw_sp->master_bridge.dev == real_dev)
3439                 return mlxsw_sp_inetaddr_bridge_event(vlan_dev, real_dev,
3440                                                       event);
3441
3442         return 0;
3443 }
3444
3445 static int mlxsw_sp_inetaddr_event(struct notifier_block *unused,
3446                                    unsigned long event, void *ptr)
3447 {
3448         struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3449         struct net_device *dev = ifa->ifa_dev->dev;
3450         struct mlxsw_sp *mlxsw_sp;
3451         struct mlxsw_sp_rif *r;
3452         int err = 0;
3453
3454         mlxsw_sp = mlxsw_sp_lower_get(dev);
3455         if (!mlxsw_sp)
3456                 goto out;
3457
3458         r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3459         if (!mlxsw_sp_rif_should_config(r, event))
3460                 goto out;
3461
3462         if (mlxsw_sp_port_dev_check(dev))
3463                 err = mlxsw_sp_inetaddr_port_event(dev, event);
3464         else if (netif_is_lag_master(dev))
3465                 err = mlxsw_sp_inetaddr_lag_event(dev, event);
3466         else if (netif_is_bridge_master(dev))
3467                 err = mlxsw_sp_inetaddr_bridge_event(dev, dev, event);
3468         else if (is_vlan_dev(dev))
3469                 err = mlxsw_sp_inetaddr_vlan_event(dev, event);
3470
3471 out:
3472         return notifier_from_errno(err);
3473 }
3474
3475 static int mlxsw_sp_rif_edit(struct mlxsw_sp *mlxsw_sp, u16 rif,
3476                              const char *mac, int mtu)
3477 {
3478         char ritr_pl[MLXSW_REG_RITR_LEN];
3479         int err;
3480
3481         mlxsw_reg_ritr_rif_pack(ritr_pl, rif);
3482         err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3483         if (err)
3484                 return err;
3485
3486         mlxsw_reg_ritr_mtu_set(ritr_pl, mtu);
3487         mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl, mac);
3488         mlxsw_reg_ritr_op_set(ritr_pl, MLXSW_REG_RITR_RIF_CREATE);
3489         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3490 }
3491
3492 static int mlxsw_sp_netdevice_router_port_event(struct net_device *dev)
3493 {
3494         struct mlxsw_sp *mlxsw_sp;
3495         struct mlxsw_sp_rif *r;
3496         int err;
3497
3498         mlxsw_sp = mlxsw_sp_lower_get(dev);
3499         if (!mlxsw_sp)
3500                 return 0;
3501
3502         r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3503         if (!r)
3504                 return 0;
3505
3506         err = mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, false);
3507         if (err)
3508                 return err;
3509
3510         err = mlxsw_sp_rif_edit(mlxsw_sp, r->rif, dev->dev_addr, dev->mtu);
3511         if (err)
3512                 goto err_rif_edit;
3513
3514         err = mlxsw_sp_rif_fdb_op(mlxsw_sp, dev->dev_addr, r->f->fid, true);
3515         if (err)
3516                 goto err_rif_fdb_op;
3517
3518         ether_addr_copy(r->addr, dev->dev_addr);
3519         r->mtu = dev->mtu;
3520
3521         netdev_dbg(dev, "Updated RIF=%d\n", r->rif);
3522
3523         return 0;
3524
3525 err_rif_fdb_op:
3526         mlxsw_sp_rif_edit(mlxsw_sp, r->rif, r->addr, r->mtu);
3527 err_rif_edit:
3528         mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, true);
3529         return err;
3530 }
3531
3532 static bool mlxsw_sp_lag_port_fid_member(struct mlxsw_sp_port *lag_port,
3533                                          u16 fid)
3534 {
3535         if (mlxsw_sp_fid_is_vfid(fid))
3536                 return mlxsw_sp_port_vport_find_by_fid(lag_port, fid);
3537         else
3538                 return test_bit(fid, lag_port->active_vlans);
3539 }
3540
3541 static bool mlxsw_sp_port_fdb_should_flush(struct mlxsw_sp_port *mlxsw_sp_port,
3542                                            u16 fid)
3543 {
3544         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3545         u8 local_port = mlxsw_sp_port->local_port;
3546         u16 lag_id = mlxsw_sp_port->lag_id;
3547         int i, count = 0;
3548
3549         if (!mlxsw_sp_port->lagged)
3550                 return true;
3551
3552         for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3553                 struct mlxsw_sp_port *lag_port;
3554
3555                 lag_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
3556                 if (!lag_port || lag_port->local_port == local_port)
3557                         continue;
3558                 if (mlxsw_sp_lag_port_fid_member(lag_port, fid))
3559                         count++;
3560         }
3561
3562         return !count;
3563 }
3564
3565 static int
3566 mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3567                                     u16 fid)
3568 {
3569         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3570         char sfdf_pl[MLXSW_REG_SFDF_LEN];
3571
3572         mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID);
3573         mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3574         mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl,
3575                                                 mlxsw_sp_port->local_port);
3576
3577         netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using Port=%d, FID=%d\n",
3578                    mlxsw_sp_port->local_port, fid);
3579
3580         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3581 }
3582
3583 static int
3584 mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3585                                       u16 fid)
3586 {
3587         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3588         char sfdf_pl[MLXSW_REG_SFDF_LEN];
3589
3590         mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID);
3591         mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3592         mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);
3593
3594         netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using LAG ID=%d, FID=%d\n",
3595                    mlxsw_sp_port->lag_id, fid);
3596
3597         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3598 }
3599
3600 int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
3601 {
3602         if (!mlxsw_sp_port_fdb_should_flush(mlxsw_sp_port, fid))
3603                 return 0;
3604
3605         if (mlxsw_sp_port->lagged)
3606                 return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port,
3607                                                              fid);
3608         else
3609                 return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, fid);
3610 }
3611
3612 static void mlxsw_sp_master_bridge_gone_sync(struct mlxsw_sp *mlxsw_sp)
3613 {
3614         struct mlxsw_sp_fid *f, *tmp;
3615
3616         list_for_each_entry_safe(f, tmp, &mlxsw_sp->fids, list)
3617                 if (--f->ref_count == 0)
3618                         mlxsw_sp_fid_destroy(mlxsw_sp, f);
3619                 else
3620                         WARN_ON_ONCE(1);
3621 }
3622
3623 static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
3624                                          struct net_device *br_dev)
3625 {
3626         return !mlxsw_sp->master_bridge.dev ||
3627                mlxsw_sp->master_bridge.dev == br_dev;
3628 }
3629
3630 static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
3631                                        struct net_device *br_dev)
3632 {
3633         mlxsw_sp->master_bridge.dev = br_dev;
3634         mlxsw_sp->master_bridge.ref_count++;
3635 }
3636
3637 static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
3638 {
3639         if (--mlxsw_sp->master_bridge.ref_count == 0) {
3640                 mlxsw_sp->master_bridge.dev = NULL;
3641                 /* It's possible upper VLAN devices are still holding
3642                  * references to underlying FIDs. Drop the reference
3643                  * and release the resources if it was the last one.
3644                  * If it wasn't, then something bad happened.
3645                  */
3646                 mlxsw_sp_master_bridge_gone_sync(mlxsw_sp);
3647         }
3648 }
3649
3650 static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
3651                                      struct net_device *br_dev)
3652 {
3653         struct net_device *dev = mlxsw_sp_port->dev;
3654         int err;
3655
3656         /* When port is not bridged untagged packets are tagged with
3657          * PVID=VID=1, thereby creating an implicit VLAN interface in
3658          * the device. Remove it and let bridge code take care of its
3659          * own VLANs.
3660          */
3661         err = mlxsw_sp_port_kill_vid(dev, 0, 1);
3662         if (err)
3663                 return err;
3664
3665         mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev);
3666
3667         mlxsw_sp_port->learning = 1;
3668         mlxsw_sp_port->learning_sync = 1;
3669         mlxsw_sp_port->uc_flood = 1;
3670         mlxsw_sp_port->bridged = 1;
3671
3672         return 0;
3673 }
3674
3675 static void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3676 {
3677         struct net_device *dev = mlxsw_sp_port->dev;
3678
3679         mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
3680
3681         mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp);
3682
3683         mlxsw_sp_port->learning = 0;
3684         mlxsw_sp_port->learning_sync = 0;
3685         mlxsw_sp_port->uc_flood = 0;
3686         mlxsw_sp_port->bridged = 0;
3687
3688         /* Add implicit VLAN interface in the device, so that untagged
3689          * packets will be classified to the default vFID.
3690          */
3691         mlxsw_sp_port_add_vid(dev, 0, 1);
3692 }
3693
3694 static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3695 {
3696         char sldr_pl[MLXSW_REG_SLDR_LEN];
3697
3698         mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
3699         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3700 }
3701
3702 static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3703 {
3704         char sldr_pl[MLXSW_REG_SLDR_LEN];
3705
3706         mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
3707         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3708 }
3709
3710 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3711                                      u16 lag_id, u8 port_index)
3712 {
3713         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3714         char slcor_pl[MLXSW_REG_SLCOR_LEN];
3715
3716         mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
3717                                       lag_id, port_index);
3718         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3719 }
3720
3721 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3722                                         u16 lag_id)
3723 {
3724         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3725         char slcor_pl[MLXSW_REG_SLCOR_LEN];
3726
3727         mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
3728                                          lag_id);
3729         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3730 }
3731
3732 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
3733                                         u16 lag_id)
3734 {
3735         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3736         char slcor_pl[MLXSW_REG_SLCOR_LEN];
3737
3738         mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
3739                                         lag_id);
3740         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3741 }
3742
3743 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
3744                                          u16 lag_id)
3745 {
3746         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3747         char slcor_pl[MLXSW_REG_SLCOR_LEN];
3748
3749         mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
3750                                          lag_id);
3751         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3752 }
3753
3754 static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3755                                   struct net_device *lag_dev,
3756                                   u16 *p_lag_id)
3757 {
3758         struct mlxsw_sp_upper *lag;
3759         int free_lag_id = -1;
3760         int i;
3761
3762         for (i = 0; i < MLXSW_SP_LAG_MAX; i++) {
3763                 lag = mlxsw_sp_lag_get(mlxsw_sp, i);
3764                 if (lag->ref_count) {
3765                         if (lag->dev == lag_dev) {
3766                                 *p_lag_id = i;
3767                                 return 0;
3768                         }
3769                 } else if (free_lag_id < 0) {
3770                         free_lag_id = i;
3771                 }
3772         }
3773         if (free_lag_id < 0)
3774                 return -EBUSY;
3775         *p_lag_id = free_lag_id;
3776         return 0;
3777 }
3778
3779 static bool
3780 mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
3781                           struct net_device *lag_dev,
3782                           struct netdev_lag_upper_info *lag_upper_info)
3783 {
3784         u16 lag_id;
3785
3786         if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
3787                 return false;
3788         if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
3789                 return false;
3790         return true;
3791 }
3792
3793 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3794                                        u16 lag_id, u8 *p_port_index)
3795 {
3796         int i;
3797
3798         for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3799                 if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
3800                         *p_port_index = i;
3801                         return 0;
3802                 }
3803         }
3804         return -EBUSY;
3805 }
3806
3807 static void
3808 mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3809                                   u16 lag_id)
3810 {
3811         struct mlxsw_sp_port *mlxsw_sp_vport;
3812         struct mlxsw_sp_fid *f;
3813
3814         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3815         if (WARN_ON(!mlxsw_sp_vport))
3816                 return;
3817
3818         /* If vPort is assigned a RIF, then leave it since it's no
3819          * longer valid.
3820          */
3821         f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3822         if (f)
3823                 f->leave(mlxsw_sp_vport);
3824
3825         mlxsw_sp_vport->lag_id = lag_id;
3826         mlxsw_sp_vport->lagged = 1;
3827 }
3828
3829 static void
3830 mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3831 {
3832         struct mlxsw_sp_port *mlxsw_sp_vport;
3833         struct mlxsw_sp_fid *f;
3834
3835         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3836         if (WARN_ON(!mlxsw_sp_vport))
3837                 return;
3838
3839         f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3840         if (f)
3841                 f->leave(mlxsw_sp_vport);
3842
3843         mlxsw_sp_vport->lagged = 0;
3844 }
3845
3846 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3847                                   struct net_device *lag_dev)
3848 {
3849         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3850         struct mlxsw_sp_upper *lag;
3851         u16 lag_id;
3852         u8 port_index;
3853         int err;
3854
3855         err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
3856         if (err)
3857                 return err;
3858         lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3859         if (!lag->ref_count) {
3860                 err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
3861                 if (err)
3862                         return err;
3863                 lag->dev = lag_dev;
3864         }
3865
3866         err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
3867         if (err)
3868                 return err;
3869         err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
3870         if (err)
3871                 goto err_col_port_add;
3872         err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
3873         if (err)
3874                 goto err_col_port_enable;
3875
3876         mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
3877                                    mlxsw_sp_port->local_port);
3878         mlxsw_sp_port->lag_id = lag_id;
3879         mlxsw_sp_port->lagged = 1;
3880         lag->ref_count++;
3881
3882         mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_id);
3883
3884         return 0;
3885
3886 err_col_port_enable:
3887         mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3888 err_col_port_add:
3889         if (!lag->ref_count)
3890                 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3891         return err;
3892 }
3893
3894 static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
3895                                     struct net_device *lag_dev)
3896 {
3897         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3898         u16 lag_id = mlxsw_sp_port->lag_id;
3899         struct mlxsw_sp_upper *lag;
3900
3901         if (!mlxsw_sp_port->lagged)
3902                 return;
3903         lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3904         WARN_ON(lag->ref_count == 0);
3905
3906         mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
3907         mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3908
3909         if (mlxsw_sp_port->bridged) {
3910                 mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
3911                 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
3912         }
3913
3914         if (lag->ref_count == 1)
3915                 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3916
3917         mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
3918                                      mlxsw_sp_port->local_port);
3919         mlxsw_sp_port->lagged = 0;
3920         lag->ref_count--;
3921
3922         mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port);
3923 }
3924
3925 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3926                                       u16 lag_id)
3927 {
3928         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3929         char sldr_pl[MLXSW_REG_SLDR_LEN];
3930
3931         mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
3932                                          mlxsw_sp_port->local_port);
3933         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3934 }
3935
3936 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3937                                          u16 lag_id)
3938 {
3939         struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3940         char sldr_pl[MLXSW_REG_SLDR_LEN];
3941
3942         mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
3943                                             mlxsw_sp_port->local_port);
3944         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3945 }
3946
3947 static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
3948                                        bool lag_tx_enabled)
3949 {
3950         if (lag_tx_enabled)
3951                 return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
3952                                                   mlxsw_sp_port->lag_id);
3953         else
3954                 return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
3955                                                      mlxsw_sp_port->lag_id);
3956 }
3957
3958 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
3959                                      struct netdev_lag_lower_state_info *info)
3960 {
3961         return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
3962 }
3963
3964 static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
3965                                    struct net_device *vlan_dev)
3966 {
3967         struct mlxsw_sp_port *mlxsw_sp_vport;
3968         u16 vid = vlan_dev_vlan_id(vlan_dev);
3969
3970         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3971         if (WARN_ON(!mlxsw_sp_vport))
3972                 return -EINVAL;
3973
3974         mlxsw_sp_vport->dev = vlan_dev;
3975
3976         return 0;
3977 }
3978
3979 static void mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
3980                                       struct net_device *vlan_dev)
3981 {
3982         struct mlxsw_sp_port *mlxsw_sp_vport;
3983         u16 vid = vlan_dev_vlan_id(vlan_dev);
3984
3985         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3986         if (WARN_ON(!mlxsw_sp_vport))
3987                 return;
3988
3989         mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
3990 }
3991
3992 static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
3993                                                unsigned long event, void *ptr)
3994 {
3995         struct netdev_notifier_changeupper_info *info;
3996         struct mlxsw_sp_port *mlxsw_sp_port;
3997         struct net_device *upper_dev;
3998         struct mlxsw_sp *mlxsw_sp;
3999         int err = 0;
4000
4001         mlxsw_sp_port = netdev_priv(dev);
4002         mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
4003         info = ptr;
4004
4005         switch (event) {
4006         case NETDEV_PRECHANGEUPPER:
4007                 upper_dev = info->upper_dev;
4008                 if (!is_vlan_dev(upper_dev) &&
4009                     !netif_is_lag_master(upper_dev) &&
4010                     !netif_is_bridge_master(upper_dev))
4011                         return -EINVAL;
4012                 if (!info->linking)
4013                         break;
4014                 /* HW limitation forbids to put ports to multiple bridges. */
4015                 if (netif_is_bridge_master(upper_dev) &&
4016                     !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
4017                         return -EINVAL;
4018                 if (netif_is_lag_master(upper_dev) &&
4019                     !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
4020                                                info->upper_info))
4021                         return -EINVAL;
4022                 if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev))
4023                         return -EINVAL;
4024                 if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
4025                     !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
4026                         return -EINVAL;
4027                 break;
4028         case NETDEV_CHANGEUPPER:
4029                 upper_dev = info->upper_dev;
4030                 if (is_vlan_dev(upper_dev)) {
4031                         if (info->linking)
4032                                 err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
4033                                                               upper_dev);
4034                         else
4035                                  mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
4036                                                            upper_dev);
4037                 } else if (netif_is_bridge_master(upper_dev)) {
4038                         if (info->linking)
4039                                 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
4040                                                                 upper_dev);
4041                         else
4042                                 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
4043                 } else if (netif_is_lag_master(upper_dev)) {
4044                         if (info->linking)
4045                                 err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
4046                                                              upper_dev);
4047                         else
4048                                 mlxsw_sp_port_lag_leave(mlxsw_sp_port,
4049                                                         upper_dev);
4050                 } else {
4051                         err = -EINVAL;
4052                         WARN_ON(1);
4053                 }
4054                 break;
4055         }
4056
4057         return err;
4058 }
4059
4060 static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
4061                                                unsigned long event, void *ptr)
4062 {
4063         struct netdev_notifier_changelowerstate_info *info;
4064         struct mlxsw_sp_port *mlxsw_sp_port;
4065         int err;
4066
4067         mlxsw_sp_port = netdev_priv(dev);
4068         info = ptr;
4069
4070         switch (event) {
4071         case NETDEV_CHANGELOWERSTATE:
4072                 if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
4073                         err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
4074                                                         info->lower_state_info);
4075                         if (err)
4076                                 netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
4077                 }
4078                 break;
4079         }
4080
4081         return 0;
4082 }
4083
4084 static int mlxsw_sp_netdevice_port_event(struct net_device *dev,
4085                                          unsigned long event, void *ptr)
4086 {
4087         switch (event) {
4088         case NETDEV_PRECHANGEUPPER:
4089         case NETDEV_CHANGEUPPER:
4090                 return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr);
4091         case NETDEV_CHANGELOWERSTATE:
4092                 return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr);
4093         }
4094
4095         return 0;
4096 }
4097
4098 static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
4099                                         unsigned long event, void *ptr)
4100 {
4101         struct net_device *dev;
4102         struct list_head *iter;
4103         int ret;
4104
4105         netdev_for_each_lower_dev(lag_dev, dev, iter) {
4106                 if (mlxsw_sp_port_dev_check(dev)) {
4107                         ret = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4108                         if (ret)
4109                                 return ret;
4110                 }
4111         }
4112
4113         return 0;
4114 }
4115
4116 static int mlxsw_sp_master_bridge_vlan_link(struct mlxsw_sp *mlxsw_sp,
4117                                             struct net_device *vlan_dev)
4118 {
4119         u16 fid = vlan_dev_vlan_id(vlan_dev);
4120         struct mlxsw_sp_fid *f;
4121
4122         f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4123         if (!f) {
4124                 f = mlxsw_sp_fid_create(mlxsw_sp, fid);
4125                 if (IS_ERR(f))
4126                         return PTR_ERR(f);
4127         }
4128
4129         f->ref_count++;
4130
4131         return 0;
4132 }
4133
4134 static void mlxsw_sp_master_bridge_vlan_unlink(struct mlxsw_sp *mlxsw_sp,
4135                                                struct net_device *vlan_dev)
4136 {
4137         u16 fid = vlan_dev_vlan_id(vlan_dev);
4138         struct mlxsw_sp_fid *f;
4139
4140         f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4141         if (f && f->r)
4142                 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4143         if (f && --f->ref_count == 0)
4144                 mlxsw_sp_fid_destroy(mlxsw_sp, f);
4145 }
4146
4147 static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
4148                                            unsigned long event, void *ptr)
4149 {
4150         struct netdev_notifier_changeupper_info *info;
4151         struct net_device *upper_dev;
4152         struct mlxsw_sp *mlxsw_sp;
4153         int err;
4154
4155         mlxsw_sp = mlxsw_sp_lower_get(br_dev);
4156         if (!mlxsw_sp)
4157                 return 0;
4158         if (br_dev != mlxsw_sp->master_bridge.dev)
4159                 return 0;
4160
4161         info = ptr;
4162
4163         switch (event) {
4164         case NETDEV_CHANGEUPPER:
4165                 upper_dev = info->upper_dev;
4166                 if (!is_vlan_dev(upper_dev))
4167                         break;
4168                 if (info->linking) {
4169                         err = mlxsw_sp_master_bridge_vlan_link(mlxsw_sp,
4170                                                                upper_dev);
4171                         if (err)
4172                                 return err;
4173                 } else {
4174                         mlxsw_sp_master_bridge_vlan_unlink(mlxsw_sp, upper_dev);
4175                 }
4176                 break;
4177         }
4178
4179         return 0;
4180 }
4181
4182 static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
4183 {
4184         return find_first_zero_bit(mlxsw_sp->vfids.mapped,
4185                                    MLXSW_SP_VFID_MAX);
4186 }
4187
4188 static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
4189 {
4190         char sfmr_pl[MLXSW_REG_SFMR_LEN];
4191
4192         mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0);
4193         return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
4194 }
4195
4196 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
4197
4198 static struct mlxsw_sp_fid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
4199                                                  struct net_device *br_dev)
4200 {
4201         struct device *dev = mlxsw_sp->bus_info->dev;
4202         struct mlxsw_sp_fid *f;
4203         u16 vfid, fid;
4204         int err;
4205
4206         vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
4207         if (vfid == MLXSW_SP_VFID_MAX) {
4208                 dev_err(dev, "No available vFIDs\n");
4209                 return ERR_PTR(-ERANGE);
4210         }
4211
4212         fid = mlxsw_sp_vfid_to_fid(vfid);
4213         err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
4214         if (err) {
4215                 dev_err(dev, "Failed to create FID=%d\n", fid);
4216                 return ERR_PTR(err);
4217         }
4218
4219         f = kzalloc(sizeof(*f), GFP_KERNEL);
4220         if (!f)
4221                 goto err_allocate_vfid;
4222
4223         f->leave = mlxsw_sp_vport_vfid_leave;
4224         f->fid = fid;
4225         f->dev = br_dev;
4226
4227         list_add(&f->list, &mlxsw_sp->vfids.list);
4228         set_bit(vfid, mlxsw_sp->vfids.mapped);
4229
4230         return f;
4231
4232 err_allocate_vfid:
4233         mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4234         return ERR_PTR(-ENOMEM);
4235 }
4236
4237 static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
4238                                   struct mlxsw_sp_fid *f)
4239 {
4240         u16 vfid = mlxsw_sp_fid_to_vfid(f->fid);
4241         u16 fid = f->fid;
4242
4243         clear_bit(vfid, mlxsw_sp->vfids.mapped);
4244         list_del(&f->list);
4245
4246         if (f->r)
4247                 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4248
4249         kfree(f);
4250
4251         mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4252 }
4253
4254 static int mlxsw_sp_vport_fid_map(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
4255                                   bool valid)
4256 {
4257         enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
4258         u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4259
4260         return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, mt, valid, fid,
4261                                             vid);
4262 }
4263
4264 static int mlxsw_sp_vport_vfid_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4265                                     struct net_device *br_dev)
4266 {
4267         struct mlxsw_sp_fid *f;
4268         int err;
4269
4270         f = mlxsw_sp_vfid_find(mlxsw_sp_vport->mlxsw_sp, br_dev);
4271         if (!f) {
4272                 f = mlxsw_sp_vfid_create(mlxsw_sp_vport->mlxsw_sp, br_dev);
4273                 if (IS_ERR(f))
4274                         return PTR_ERR(f);
4275         }
4276
4277         err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, true);
4278         if (err)
4279                 goto err_vport_flood_set;
4280
4281         err = mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, true);
4282         if (err)
4283                 goto err_vport_fid_map;
4284
4285         mlxsw_sp_vport_fid_set(mlxsw_sp_vport, f);
4286         f->ref_count++;
4287
4288         netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", f->fid);
4289
4290         return 0;
4291
4292 err_vport_fid_map:
4293         mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4294 err_vport_flood_set:
4295         if (!f->ref_count)
4296                 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4297         return err;
4298 }
4299
4300 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4301 {
4302         struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4303
4304         netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
4305
4306         mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, false);
4307
4308         mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4309
4310         mlxsw_sp_port_fdb_flush(mlxsw_sp_vport, f->fid);
4311
4312         mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
4313         if (--f->ref_count == 0)
4314                 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4315 }
4316
4317 static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4318                                       struct net_device *br_dev)
4319 {
4320         struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4321         u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4322         struct net_device *dev = mlxsw_sp_vport->dev;
4323         int err;
4324
4325         if (f && !WARN_ON(!f->leave))
4326                 f->leave(mlxsw_sp_vport);
4327
4328         err = mlxsw_sp_vport_vfid_join(mlxsw_sp_vport, br_dev);
4329         if (err) {
4330                 netdev_err(dev, "Failed to join vFID\n");
4331                 return err;
4332         }
4333
4334         err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
4335         if (err) {
4336                 netdev_err(dev, "Failed to enable learning\n");
4337                 goto err_port_vid_learning_set;
4338         }
4339
4340         mlxsw_sp_vport->learning = 1;
4341         mlxsw_sp_vport->learning_sync = 1;
4342         mlxsw_sp_vport->uc_flood = 1;
4343         mlxsw_sp_vport->bridged = 1;
4344
4345         return 0;
4346
4347 err_port_vid_learning_set:
4348         mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4349         return err;
4350 }
4351
4352 static void mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4353 {
4354         u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4355
4356         mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
4357
4358         mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4359
4360         mlxsw_sp_vport->learning = 0;
4361         mlxsw_sp_vport->learning_sync = 0;
4362         mlxsw_sp_vport->uc_flood = 0;
4363         mlxsw_sp_vport->bridged = 0;
4364 }
4365
4366 static bool
4367 mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port,
4368                                   const struct net_device *br_dev)
4369 {
4370         struct mlxsw_sp_port *mlxsw_sp_vport;
4371
4372         list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
4373                             vport.list) {
4374                 struct net_device *dev = mlxsw_sp_vport_dev_get(mlxsw_sp_vport);
4375
4376                 if (dev && dev == br_dev)
4377                         return false;
4378         }
4379
4380         return true;
4381 }
4382
4383 static int mlxsw_sp_netdevice_vport_event(struct net_device *dev,
4384                                           unsigned long event, void *ptr,
4385                                           u16 vid)
4386 {
4387         struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
4388         struct netdev_notifier_changeupper_info *info = ptr;
4389         struct mlxsw_sp_port *mlxsw_sp_vport;
4390         struct net_device *upper_dev;
4391         int err = 0;
4392
4393         mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
4394
4395         switch (event) {
4396         case NETDEV_PRECHANGEUPPER:
4397                 upper_dev = info->upper_dev;
4398                 if (!netif_is_bridge_master(upper_dev))
4399                         return -EINVAL;
4400                 if (!info->linking)
4401                         break;
4402                 /* We can't have multiple VLAN interfaces configured on
4403                  * the same port and being members in the same bridge.
4404                  */
4405                 if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port,
4406                                                        upper_dev))
4407                         return -EINVAL;
4408                 break;
4409         case NETDEV_CHANGEUPPER:
4410                 upper_dev = info->upper_dev;
4411                 if (info->linking) {
4412                         if (WARN_ON(!mlxsw_sp_vport))
4413                                 return -EINVAL;
4414                         err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport,
4415                                                          upper_dev);
4416                 } else {
4417                         if (!mlxsw_sp_vport)
4418                                 return 0;
4419                         mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport);
4420                 }
4421         }
4422
4423         return err;
4424 }
4425
4426 static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev,
4427                                               unsigned long event, void *ptr,
4428                                               u16 vid)
4429 {
4430         struct net_device *dev;
4431         struct list_head *iter;
4432         int ret;
4433
4434         netdev_for_each_lower_dev(lag_dev, dev, iter) {
4435                 if (mlxsw_sp_port_dev_check(dev)) {
4436                         ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr,
4437                                                              vid);
4438                         if (ret)
4439                                 return ret;
4440                 }
4441         }
4442
4443         return 0;
4444 }
4445
4446 static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
4447                                          unsigned long event, void *ptr)
4448 {
4449         struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
4450         u16 vid = vlan_dev_vlan_id(vlan_dev);
4451
4452         if (mlxsw_sp_port_dev_check(real_dev))
4453                 return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr,
4454                                                       vid);
4455         else if (netif_is_lag_master(real_dev))
4456                 return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr,
4457                                                           vid);
4458
4459         return 0;
4460 }
4461
4462 static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
4463                                     unsigned long event, void *ptr)
4464 {
4465         struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4466         int err = 0;
4467
4468         if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU)
4469                 err = mlxsw_sp_netdevice_router_port_event(dev);
4470         else if (mlxsw_sp_port_dev_check(dev))
4471                 err = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4472         else if (netif_is_lag_master(dev))
4473                 err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
4474         else if (netif_is_bridge_master(dev))
4475                 err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
4476         else if (is_vlan_dev(dev))
4477                 err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
4478
4479         return notifier_from_errno(err);
4480 }
4481
4482 static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
4483         .notifier_call = mlxsw_sp_netdevice_event,
4484 };
4485
4486 static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = {
4487         .notifier_call = mlxsw_sp_inetaddr_event,
4488         .priority = 10, /* Must be called before FIB notifier block */
4489 };
4490
4491 static int __init mlxsw_sp_module_init(void)
4492 {
4493         int err;
4494
4495         register_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4496         register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4497         err = mlxsw_core_driver_register(&mlxsw_sp_driver);
4498         if (err)
4499                 goto err_core_driver_register;
4500         return 0;
4501
4502 err_core_driver_register:
4503         unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4504         return err;
4505 }
4506
4507 static void __exit mlxsw_sp_module_exit(void)
4508 {
4509         mlxsw_core_driver_unregister(&mlxsw_sp_driver);
4510         unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4511         unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4512 }
4513
4514 module_init(mlxsw_sp_module_init);
4515 module_exit(mlxsw_sp_module_exit);
4516
4517 MODULE_LICENSE("Dual BSD/GPL");
4518 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
4519 MODULE_DESCRIPTION("Mellanox Spectrum driver");
4520 MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM);