1 // SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 2 /* Copyright (c) 2015-2018 Mellanox Technologies. All rights reserved */ 3 4 #include <linux/kernel.h> 5 #include <linux/types.h> 6 #include <linux/netdevice.h> 7 #include <linux/etherdevice.h> 8 #include <linux/slab.h> 9 #include <linux/device.h> 10 #include <linux/skbuff.h> 11 #include <linux/if_vlan.h> 12 #include <linux/if_bridge.h> 13 #include <linux/workqueue.h> 14 #include <linux/jiffies.h> 15 #include <linux/rtnetlink.h> 16 #include <linux/netlink.h> 17 #include <net/switchdev.h> 18 #include <net/vxlan.h> 19 20 #include "spectrum_span.h" 21 #include "spectrum_switchdev.h" 22 #include "spectrum.h" 23 #include "core.h" 24 #include "reg.h" 25 26 struct mlxsw_sp_bridge_ops; 27 28 struct mlxsw_sp_bridge { 29 struct mlxsw_sp *mlxsw_sp; 30 struct { 31 struct delayed_work dw; 32 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100 33 unsigned int interval; /* ms */ 34 } fdb_notify; 35 #define MLXSW_SP_MIN_AGEING_TIME 10 36 #define MLXSW_SP_MAX_AGEING_TIME 1000000 37 #define MLXSW_SP_DEFAULT_AGEING_TIME 300 38 u32 ageing_time; 39 bool vlan_enabled_exists; 40 struct list_head bridges_list; 41 DECLARE_BITMAP(mids_bitmap, MLXSW_SP_MID_MAX); 42 const struct mlxsw_sp_bridge_ops *bridge_8021q_ops; 43 const struct mlxsw_sp_bridge_ops *bridge_8021d_ops; 44 const struct mlxsw_sp_bridge_ops *bridge_8021ad_ops; 45 }; 46 47 struct mlxsw_sp_bridge_device { 48 struct net_device *dev; 49 struct list_head list; 50 struct list_head ports_list; 51 struct list_head mids_list; 52 u8 vlan_enabled:1, 53 multicast_enabled:1, 54 mrouter:1; 55 const struct mlxsw_sp_bridge_ops *ops; 56 }; 57 58 struct mlxsw_sp_bridge_port { 59 struct net_device *dev; 60 struct mlxsw_sp_bridge_device *bridge_device; 61 struct list_head list; 62 struct list_head vlans_list; 63 unsigned int ref_count; 64 u8 stp_state; 65 unsigned long flags; 66 bool mrouter; 67 bool lagged; 68 union { 69 u16 lag_id; 70 u16 system_port; 71 }; 72 }; 73 74 struct mlxsw_sp_bridge_vlan { 75 struct list_head list; 76 struct list_head port_vlan_list; 77 u16 vid; 78 }; 79 80 struct mlxsw_sp_bridge_ops { 81 int (*port_join)(struct mlxsw_sp_bridge_device *bridge_device, 82 struct mlxsw_sp_bridge_port *bridge_port, 83 struct mlxsw_sp_port *mlxsw_sp_port, 84 struct netlink_ext_ack *extack); 85 void (*port_leave)(struct mlxsw_sp_bridge_device *bridge_device, 86 struct mlxsw_sp_bridge_port *bridge_port, 87 struct mlxsw_sp_port *mlxsw_sp_port); 88 int (*vxlan_join)(struct mlxsw_sp_bridge_device *bridge_device, 89 const struct net_device *vxlan_dev, u16 vid, 90 struct netlink_ext_ack *extack); 91 struct mlxsw_sp_fid * 92 (*fid_get)(struct mlxsw_sp_bridge_device *bridge_device, 93 u16 vid, struct netlink_ext_ack *extack); 94 struct mlxsw_sp_fid * 95 (*fid_lookup)(struct mlxsw_sp_bridge_device *bridge_device, 96 u16 vid); 97 u16 (*fid_vid)(struct mlxsw_sp_bridge_device *bridge_device, 98 const struct mlxsw_sp_fid *fid); 99 }; 100 101 struct mlxsw_sp_switchdev_ops { 102 void (*init)(struct mlxsw_sp *mlxsw_sp); 103 }; 104 105 static int 106 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp, 107 struct mlxsw_sp_bridge_port *bridge_port, 108 u16 fid_index); 109 110 static void 111 mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, 112 struct mlxsw_sp_bridge_port *bridge_port); 113 114 static void 115 mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port, 116 struct mlxsw_sp_bridge_device 117 *bridge_device); 118 119 static void 120 mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port, 121 struct mlxsw_sp_bridge_port *bridge_port, 122 bool add); 123 124 static struct mlxsw_sp_bridge_device * 125 mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge, 126 const struct net_device *br_dev) 127 { 128 struct mlxsw_sp_bridge_device *bridge_device; 129 130 list_for_each_entry(bridge_device, &bridge->bridges_list, list) 131 if (bridge_device->dev == br_dev) 132 return bridge_device; 133 134 return NULL; 135 } 136 137 bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp, 138 const struct net_device *br_dev) 139 { 140 return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 141 } 142 143 static int mlxsw_sp_bridge_device_upper_rif_destroy(struct net_device *dev, 144 struct netdev_nested_priv *priv) 145 { 146 struct mlxsw_sp *mlxsw_sp = priv->data; 147 148 mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev); 149 return 0; 150 } 151 152 static void mlxsw_sp_bridge_device_rifs_destroy(struct mlxsw_sp *mlxsw_sp, 153 struct net_device *dev) 154 { 155 struct netdev_nested_priv priv = { 156 .data = (void *)mlxsw_sp, 157 }; 158 159 mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev); 160 netdev_walk_all_upper_dev_rcu(dev, 161 mlxsw_sp_bridge_device_upper_rif_destroy, 162 &priv); 163 } 164 165 static int mlxsw_sp_bridge_device_vxlan_init(struct mlxsw_sp_bridge *bridge, 166 struct net_device *br_dev, 167 struct netlink_ext_ack *extack) 168 { 169 struct net_device *dev, *stop_dev; 170 struct list_head *iter; 171 int err; 172 173 netdev_for_each_lower_dev(br_dev, dev, iter) { 174 if (netif_is_vxlan(dev) && netif_running(dev)) { 175 err = mlxsw_sp_bridge_vxlan_join(bridge->mlxsw_sp, 176 br_dev, dev, 0, 177 extack); 178 if (err) { 179 stop_dev = dev; 180 goto err_vxlan_join; 181 } 182 } 183 } 184 185 return 0; 186 187 err_vxlan_join: 188 netdev_for_each_lower_dev(br_dev, dev, iter) { 189 if (netif_is_vxlan(dev) && netif_running(dev)) { 190 if (stop_dev == dev) 191 break; 192 mlxsw_sp_bridge_vxlan_leave(bridge->mlxsw_sp, dev); 193 } 194 } 195 return err; 196 } 197 198 static void mlxsw_sp_bridge_device_vxlan_fini(struct mlxsw_sp_bridge *bridge, 199 struct net_device *br_dev) 200 { 201 struct net_device *dev; 202 struct list_head *iter; 203 204 netdev_for_each_lower_dev(br_dev, dev, iter) { 205 if (netif_is_vxlan(dev) && netif_running(dev)) 206 mlxsw_sp_bridge_vxlan_leave(bridge->mlxsw_sp, dev); 207 } 208 } 209 210 static struct mlxsw_sp_bridge_device * 211 mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge, 212 struct net_device *br_dev, 213 struct netlink_ext_ack *extack) 214 { 215 struct device *dev = bridge->mlxsw_sp->bus_info->dev; 216 struct mlxsw_sp_bridge_device *bridge_device; 217 bool vlan_enabled = br_vlan_enabled(br_dev); 218 int err; 219 220 if (vlan_enabled && bridge->vlan_enabled_exists) { 221 dev_err(dev, "Only one VLAN-aware bridge is supported\n"); 222 NL_SET_ERR_MSG_MOD(extack, "Only one VLAN-aware bridge is supported"); 223 return ERR_PTR(-EINVAL); 224 } 225 226 bridge_device = kzalloc(sizeof(*bridge_device), GFP_KERNEL); 227 if (!bridge_device) 228 return ERR_PTR(-ENOMEM); 229 230 bridge_device->dev = br_dev; 231 bridge_device->vlan_enabled = vlan_enabled; 232 bridge_device->multicast_enabled = br_multicast_enabled(br_dev); 233 bridge_device->mrouter = br_multicast_router(br_dev); 234 INIT_LIST_HEAD(&bridge_device->ports_list); 235 if (vlan_enabled) { 236 u16 proto; 237 238 bridge->vlan_enabled_exists = true; 239 br_vlan_get_proto(br_dev, &proto); 240 if (proto == ETH_P_8021AD) 241 bridge_device->ops = bridge->bridge_8021ad_ops; 242 else 243 bridge_device->ops = bridge->bridge_8021q_ops; 244 } else { 245 bridge_device->ops = bridge->bridge_8021d_ops; 246 } 247 INIT_LIST_HEAD(&bridge_device->mids_list); 248 list_add(&bridge_device->list, &bridge->bridges_list); 249 250 /* It is possible we already have VXLAN devices enslaved to the bridge. 251 * In which case, we need to replay their configuration as if they were 252 * just now enslaved to the bridge. 253 */ 254 err = mlxsw_sp_bridge_device_vxlan_init(bridge, br_dev, extack); 255 if (err) 256 goto err_vxlan_init; 257 258 return bridge_device; 259 260 err_vxlan_init: 261 list_del(&bridge_device->list); 262 if (bridge_device->vlan_enabled) 263 bridge->vlan_enabled_exists = false; 264 kfree(bridge_device); 265 return ERR_PTR(err); 266 } 267 268 static void 269 mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge, 270 struct mlxsw_sp_bridge_device *bridge_device) 271 { 272 mlxsw_sp_bridge_device_vxlan_fini(bridge, bridge_device->dev); 273 mlxsw_sp_bridge_device_rifs_destroy(bridge->mlxsw_sp, 274 bridge_device->dev); 275 list_del(&bridge_device->list); 276 if (bridge_device->vlan_enabled) 277 bridge->vlan_enabled_exists = false; 278 WARN_ON(!list_empty(&bridge_device->ports_list)); 279 WARN_ON(!list_empty(&bridge_device->mids_list)); 280 kfree(bridge_device); 281 } 282 283 static struct mlxsw_sp_bridge_device * 284 mlxsw_sp_bridge_device_get(struct mlxsw_sp_bridge *bridge, 285 struct net_device *br_dev, 286 struct netlink_ext_ack *extack) 287 { 288 struct mlxsw_sp_bridge_device *bridge_device; 289 290 bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev); 291 if (bridge_device) 292 return bridge_device; 293 294 return mlxsw_sp_bridge_device_create(bridge, br_dev, extack); 295 } 296 297 static void 298 mlxsw_sp_bridge_device_put(struct mlxsw_sp_bridge *bridge, 299 struct mlxsw_sp_bridge_device *bridge_device) 300 { 301 if (list_empty(&bridge_device->ports_list)) 302 mlxsw_sp_bridge_device_destroy(bridge, bridge_device); 303 } 304 305 static struct mlxsw_sp_bridge_port * 306 __mlxsw_sp_bridge_port_find(const struct mlxsw_sp_bridge_device *bridge_device, 307 const struct net_device *brport_dev) 308 { 309 struct mlxsw_sp_bridge_port *bridge_port; 310 311 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { 312 if (bridge_port->dev == brport_dev) 313 return bridge_port; 314 } 315 316 return NULL; 317 } 318 319 struct mlxsw_sp_bridge_port * 320 mlxsw_sp_bridge_port_find(struct mlxsw_sp_bridge *bridge, 321 struct net_device *brport_dev) 322 { 323 struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev); 324 struct mlxsw_sp_bridge_device *bridge_device; 325 326 if (!br_dev) 327 return NULL; 328 329 bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev); 330 if (!bridge_device) 331 return NULL; 332 333 return __mlxsw_sp_bridge_port_find(bridge_device, brport_dev); 334 } 335 336 static struct mlxsw_sp_bridge_port * 337 mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device, 338 struct net_device *brport_dev, 339 struct netlink_ext_ack *extack) 340 { 341 struct mlxsw_sp_bridge_port *bridge_port; 342 struct mlxsw_sp_port *mlxsw_sp_port; 343 int err; 344 345 bridge_port = kzalloc(sizeof(*bridge_port), GFP_KERNEL); 346 if (!bridge_port) 347 return ERR_PTR(-ENOMEM); 348 349 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(brport_dev); 350 bridge_port->lagged = mlxsw_sp_port->lagged; 351 if (bridge_port->lagged) 352 bridge_port->lag_id = mlxsw_sp_port->lag_id; 353 else 354 bridge_port->system_port = mlxsw_sp_port->local_port; 355 bridge_port->dev = brport_dev; 356 bridge_port->bridge_device = bridge_device; 357 bridge_port->stp_state = BR_STATE_DISABLED; 358 bridge_port->flags = BR_LEARNING | BR_FLOOD | BR_LEARNING_SYNC | 359 BR_MCAST_FLOOD; 360 INIT_LIST_HEAD(&bridge_port->vlans_list); 361 list_add(&bridge_port->list, &bridge_device->ports_list); 362 bridge_port->ref_count = 1; 363 364 err = switchdev_bridge_port_offload(brport_dev, mlxsw_sp_port->dev, 365 NULL, NULL, NULL, false, extack); 366 if (err) 367 goto err_switchdev_offload; 368 369 return bridge_port; 370 371 err_switchdev_offload: 372 list_del(&bridge_port->list); 373 kfree(bridge_port); 374 return ERR_PTR(err); 375 } 376 377 static void 378 mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port) 379 { 380 switchdev_bridge_port_unoffload(bridge_port->dev, NULL, NULL, NULL); 381 list_del(&bridge_port->list); 382 WARN_ON(!list_empty(&bridge_port->vlans_list)); 383 kfree(bridge_port); 384 } 385 386 static struct mlxsw_sp_bridge_port * 387 mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge, 388 struct net_device *brport_dev, 389 struct netlink_ext_ack *extack) 390 { 391 struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev); 392 struct mlxsw_sp_bridge_device *bridge_device; 393 struct mlxsw_sp_bridge_port *bridge_port; 394 int err; 395 396 bridge_port = mlxsw_sp_bridge_port_find(bridge, brport_dev); 397 if (bridge_port) { 398 bridge_port->ref_count++; 399 return bridge_port; 400 } 401 402 bridge_device = mlxsw_sp_bridge_device_get(bridge, br_dev, extack); 403 if (IS_ERR(bridge_device)) 404 return ERR_CAST(bridge_device); 405 406 bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev, 407 extack); 408 if (IS_ERR(bridge_port)) { 409 err = PTR_ERR(bridge_port); 410 goto err_bridge_port_create; 411 } 412 413 return bridge_port; 414 415 err_bridge_port_create: 416 mlxsw_sp_bridge_device_put(bridge, bridge_device); 417 return ERR_PTR(err); 418 } 419 420 static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge, 421 struct mlxsw_sp_bridge_port *bridge_port) 422 { 423 struct mlxsw_sp_bridge_device *bridge_device; 424 425 if (--bridge_port->ref_count != 0) 426 return; 427 bridge_device = bridge_port->bridge_device; 428 mlxsw_sp_bridge_port_destroy(bridge_port); 429 mlxsw_sp_bridge_device_put(bridge, bridge_device); 430 } 431 432 static struct mlxsw_sp_port_vlan * 433 mlxsw_sp_port_vlan_find_by_bridge(struct mlxsw_sp_port *mlxsw_sp_port, 434 const struct mlxsw_sp_bridge_device * 435 bridge_device, 436 u16 vid) 437 { 438 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 439 440 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, 441 list) { 442 if (!mlxsw_sp_port_vlan->bridge_port) 443 continue; 444 if (mlxsw_sp_port_vlan->bridge_port->bridge_device != 445 bridge_device) 446 continue; 447 if (bridge_device->vlan_enabled && 448 mlxsw_sp_port_vlan->vid != vid) 449 continue; 450 return mlxsw_sp_port_vlan; 451 } 452 453 return NULL; 454 } 455 456 static struct mlxsw_sp_port_vlan* 457 mlxsw_sp_port_vlan_find_by_fid(struct mlxsw_sp_port *mlxsw_sp_port, 458 u16 fid_index) 459 { 460 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 461 462 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, 463 list) { 464 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; 465 466 if (fid && mlxsw_sp_fid_index(fid) == fid_index) 467 return mlxsw_sp_port_vlan; 468 } 469 470 return NULL; 471 } 472 473 static struct mlxsw_sp_bridge_vlan * 474 mlxsw_sp_bridge_vlan_find(const struct mlxsw_sp_bridge_port *bridge_port, 475 u16 vid) 476 { 477 struct mlxsw_sp_bridge_vlan *bridge_vlan; 478 479 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { 480 if (bridge_vlan->vid == vid) 481 return bridge_vlan; 482 } 483 484 return NULL; 485 } 486 487 static struct mlxsw_sp_bridge_vlan * 488 mlxsw_sp_bridge_vlan_create(struct mlxsw_sp_bridge_port *bridge_port, u16 vid) 489 { 490 struct mlxsw_sp_bridge_vlan *bridge_vlan; 491 492 bridge_vlan = kzalloc(sizeof(*bridge_vlan), GFP_KERNEL); 493 if (!bridge_vlan) 494 return NULL; 495 496 INIT_LIST_HEAD(&bridge_vlan->port_vlan_list); 497 bridge_vlan->vid = vid; 498 list_add(&bridge_vlan->list, &bridge_port->vlans_list); 499 500 return bridge_vlan; 501 } 502 503 static void 504 mlxsw_sp_bridge_vlan_destroy(struct mlxsw_sp_bridge_vlan *bridge_vlan) 505 { 506 list_del(&bridge_vlan->list); 507 WARN_ON(!list_empty(&bridge_vlan->port_vlan_list)); 508 kfree(bridge_vlan); 509 } 510 511 static struct mlxsw_sp_bridge_vlan * 512 mlxsw_sp_bridge_vlan_get(struct mlxsw_sp_bridge_port *bridge_port, u16 vid) 513 { 514 struct mlxsw_sp_bridge_vlan *bridge_vlan; 515 516 bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid); 517 if (bridge_vlan) 518 return bridge_vlan; 519 520 return mlxsw_sp_bridge_vlan_create(bridge_port, vid); 521 } 522 523 static void mlxsw_sp_bridge_vlan_put(struct mlxsw_sp_bridge_vlan *bridge_vlan) 524 { 525 if (list_empty(&bridge_vlan->port_vlan_list)) 526 mlxsw_sp_bridge_vlan_destroy(bridge_vlan); 527 } 528 529 static int 530 mlxsw_sp_port_bridge_vlan_stp_set(struct mlxsw_sp_port *mlxsw_sp_port, 531 struct mlxsw_sp_bridge_vlan *bridge_vlan, 532 u8 state) 533 { 534 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 535 536 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list, 537 bridge_vlan_node) { 538 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port) 539 continue; 540 return mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, 541 bridge_vlan->vid, state); 542 } 543 544 return 0; 545 } 546 547 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, 548 struct net_device *orig_dev, 549 u8 state) 550 { 551 struct mlxsw_sp_bridge_port *bridge_port; 552 struct mlxsw_sp_bridge_vlan *bridge_vlan; 553 int err; 554 555 /* It's possible we failed to enslave the port, yet this 556 * operation is executed due to it being deferred. 557 */ 558 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge, 559 orig_dev); 560 if (!bridge_port) 561 return 0; 562 563 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { 564 err = mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, 565 bridge_vlan, state); 566 if (err) 567 goto err_port_bridge_vlan_stp_set; 568 } 569 570 bridge_port->stp_state = state; 571 572 return 0; 573 574 err_port_bridge_vlan_stp_set: 575 list_for_each_entry_continue_reverse(bridge_vlan, 576 &bridge_port->vlans_list, list) 577 mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, bridge_vlan, 578 bridge_port->stp_state); 579 return err; 580 } 581 582 static int 583 mlxsw_sp_port_bridge_vlan_flood_set(struct mlxsw_sp_port *mlxsw_sp_port, 584 struct mlxsw_sp_bridge_vlan *bridge_vlan, 585 enum mlxsw_sp_flood_type packet_type, 586 bool member) 587 { 588 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 589 590 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list, 591 bridge_vlan_node) { 592 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port) 593 continue; 594 return mlxsw_sp_fid_flood_set(mlxsw_sp_port_vlan->fid, 595 packet_type, 596 mlxsw_sp_port->local_port, 597 member); 598 } 599 600 return 0; 601 } 602 603 static int 604 mlxsw_sp_bridge_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port, 605 struct mlxsw_sp_bridge_port *bridge_port, 606 enum mlxsw_sp_flood_type packet_type, 607 bool member) 608 { 609 struct mlxsw_sp_bridge_vlan *bridge_vlan; 610 int err; 611 612 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { 613 err = mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, 614 bridge_vlan, 615 packet_type, 616 member); 617 if (err) 618 goto err_port_bridge_vlan_flood_set; 619 } 620 621 return 0; 622 623 err_port_bridge_vlan_flood_set: 624 list_for_each_entry_continue_reverse(bridge_vlan, 625 &bridge_port->vlans_list, list) 626 mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, bridge_vlan, 627 packet_type, !member); 628 return err; 629 } 630 631 static int 632 mlxsw_sp_port_bridge_vlan_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, 633 struct mlxsw_sp_bridge_vlan *bridge_vlan, 634 bool set) 635 { 636 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 637 u16 vid = bridge_vlan->vid; 638 639 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list, 640 bridge_vlan_node) { 641 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port) 642 continue; 643 return mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, set); 644 } 645 646 return 0; 647 } 648 649 static int 650 mlxsw_sp_bridge_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, 651 struct mlxsw_sp_bridge_port *bridge_port, 652 bool set) 653 { 654 struct mlxsw_sp_bridge_vlan *bridge_vlan; 655 int err; 656 657 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) { 658 err = mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port, 659 bridge_vlan, set); 660 if (err) 661 goto err_port_bridge_vlan_learning_set; 662 } 663 664 return 0; 665 666 err_port_bridge_vlan_learning_set: 667 list_for_each_entry_continue_reverse(bridge_vlan, 668 &bridge_port->vlans_list, list) 669 mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port, 670 bridge_vlan, !set); 671 return err; 672 } 673 674 static int 675 mlxsw_sp_port_attr_br_pre_flags_set(struct mlxsw_sp_port *mlxsw_sp_port, 676 struct switchdev_brport_flags flags) 677 { 678 if (flags.mask & ~(BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD)) 679 return -EINVAL; 680 681 return 0; 682 } 683 684 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port, 685 struct net_device *orig_dev, 686 struct switchdev_brport_flags flags) 687 { 688 struct mlxsw_sp_bridge_port *bridge_port; 689 int err; 690 691 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge, 692 orig_dev); 693 if (!bridge_port) 694 return 0; 695 696 if (flags.mask & BR_FLOOD) { 697 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, 698 bridge_port, 699 MLXSW_SP_FLOOD_TYPE_UC, 700 flags.val & BR_FLOOD); 701 if (err) 702 return err; 703 } 704 705 if (flags.mask & BR_LEARNING) { 706 err = mlxsw_sp_bridge_port_learning_set(mlxsw_sp_port, 707 bridge_port, 708 flags.val & BR_LEARNING); 709 if (err) 710 return err; 711 } 712 713 if (bridge_port->bridge_device->multicast_enabled) 714 goto out; 715 716 if (flags.mask & BR_MCAST_FLOOD) { 717 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, 718 bridge_port, 719 MLXSW_SP_FLOOD_TYPE_MC, 720 flags.val & BR_MCAST_FLOOD); 721 if (err) 722 return err; 723 } 724 725 out: 726 memcpy(&bridge_port->flags, &flags.val, sizeof(flags.val)); 727 return 0; 728 } 729 730 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time) 731 { 732 char sfdat_pl[MLXSW_REG_SFDAT_LEN]; 733 int err; 734 735 mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time); 736 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl); 737 if (err) 738 return err; 739 mlxsw_sp->bridge->ageing_time = ageing_time; 740 return 0; 741 } 742 743 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port, 744 unsigned long ageing_clock_t) 745 { 746 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 747 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t); 748 u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000; 749 750 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME || 751 ageing_time > MLXSW_SP_MAX_AGEING_TIME) 752 return -ERANGE; 753 754 return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time); 755 } 756 757 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, 758 struct net_device *orig_dev, 759 bool vlan_enabled) 760 { 761 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 762 struct mlxsw_sp_bridge_device *bridge_device; 763 764 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); 765 if (WARN_ON(!bridge_device)) 766 return -EINVAL; 767 768 if (bridge_device->vlan_enabled == vlan_enabled) 769 return 0; 770 771 netdev_err(bridge_device->dev, "VLAN filtering can't be changed for existing bridge\n"); 772 return -EINVAL; 773 } 774 775 static int mlxsw_sp_port_attr_br_vlan_proto_set(struct mlxsw_sp_port *mlxsw_sp_port, 776 struct net_device *orig_dev, 777 u16 vlan_proto) 778 { 779 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 780 struct mlxsw_sp_bridge_device *bridge_device; 781 782 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); 783 if (WARN_ON(!bridge_device)) 784 return -EINVAL; 785 786 netdev_err(bridge_device->dev, "VLAN protocol can't be changed on existing bridge\n"); 787 return -EINVAL; 788 } 789 790 static int mlxsw_sp_port_attr_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port, 791 struct net_device *orig_dev, 792 bool is_port_mrouter) 793 { 794 struct mlxsw_sp_bridge_port *bridge_port; 795 int err; 796 797 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge, 798 orig_dev); 799 if (!bridge_port) 800 return 0; 801 802 if (!bridge_port->bridge_device->multicast_enabled) 803 goto out; 804 805 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port, 806 MLXSW_SP_FLOOD_TYPE_MC, 807 is_port_mrouter); 808 if (err) 809 return err; 810 811 mlxsw_sp_port_mrouter_update_mdb(mlxsw_sp_port, bridge_port, 812 is_port_mrouter); 813 out: 814 bridge_port->mrouter = is_port_mrouter; 815 return 0; 816 } 817 818 static bool mlxsw_sp_mc_flood(const struct mlxsw_sp_bridge_port *bridge_port) 819 { 820 const struct mlxsw_sp_bridge_device *bridge_device; 821 822 bridge_device = bridge_port->bridge_device; 823 return bridge_device->multicast_enabled ? bridge_port->mrouter : 824 bridge_port->flags & BR_MCAST_FLOOD; 825 } 826 827 static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port, 828 struct net_device *orig_dev, 829 bool mc_disabled) 830 { 831 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 832 struct mlxsw_sp_bridge_device *bridge_device; 833 struct mlxsw_sp_bridge_port *bridge_port; 834 int err; 835 836 /* It's possible we failed to enslave the port, yet this 837 * operation is executed due to it being deferred. 838 */ 839 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); 840 if (!bridge_device) 841 return 0; 842 843 if (bridge_device->multicast_enabled != !mc_disabled) { 844 bridge_device->multicast_enabled = !mc_disabled; 845 mlxsw_sp_bridge_mdb_mc_enable_sync(mlxsw_sp_port, 846 bridge_device); 847 } 848 849 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { 850 enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC; 851 bool member = mlxsw_sp_mc_flood(bridge_port); 852 853 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, 854 bridge_port, 855 packet_type, member); 856 if (err) 857 return err; 858 } 859 860 bridge_device->multicast_enabled = !mc_disabled; 861 862 return 0; 863 } 864 865 static int mlxsw_sp_smid_router_port_set(struct mlxsw_sp *mlxsw_sp, 866 u16 mid_idx, bool add) 867 { 868 char *smid2_pl; 869 int err; 870 871 smid2_pl = kmalloc(MLXSW_REG_SMID2_LEN, GFP_KERNEL); 872 if (!smid2_pl) 873 return -ENOMEM; 874 875 mlxsw_reg_smid2_pack(smid2_pl, mid_idx, 876 mlxsw_sp_router_port(mlxsw_sp), add); 877 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid2), smid2_pl); 878 kfree(smid2_pl); 879 return err; 880 } 881 882 static void 883 mlxsw_sp_bridge_mrouter_update_mdb(struct mlxsw_sp *mlxsw_sp, 884 struct mlxsw_sp_bridge_device *bridge_device, 885 bool add) 886 { 887 struct mlxsw_sp_mid *mid; 888 889 list_for_each_entry(mid, &bridge_device->mids_list, list) 890 mlxsw_sp_smid_router_port_set(mlxsw_sp, mid->mid, add); 891 } 892 893 static int 894 mlxsw_sp_port_attr_br_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port, 895 struct net_device *orig_dev, 896 bool is_mrouter) 897 { 898 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 899 struct mlxsw_sp_bridge_device *bridge_device; 900 901 /* It's possible we failed to enslave the port, yet this 902 * operation is executed due to it being deferred. 903 */ 904 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev); 905 if (!bridge_device) 906 return 0; 907 908 if (bridge_device->mrouter != is_mrouter) 909 mlxsw_sp_bridge_mrouter_update_mdb(mlxsw_sp, bridge_device, 910 is_mrouter); 911 bridge_device->mrouter = is_mrouter; 912 return 0; 913 } 914 915 static int mlxsw_sp_port_attr_set(struct net_device *dev, const void *ctx, 916 const struct switchdev_attr *attr, 917 struct netlink_ext_ack *extack) 918 { 919 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 920 int err; 921 922 switch (attr->id) { 923 case SWITCHDEV_ATTR_ID_PORT_STP_STATE: 924 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, 925 attr->orig_dev, 926 attr->u.stp_state); 927 break; 928 case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: 929 err = mlxsw_sp_port_attr_br_pre_flags_set(mlxsw_sp_port, 930 attr->u.brport_flags); 931 break; 932 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: 933 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, 934 attr->orig_dev, 935 attr->u.brport_flags); 936 break; 937 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: 938 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, 939 attr->u.ageing_time); 940 break; 941 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: 942 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, 943 attr->orig_dev, 944 attr->u.vlan_filtering); 945 break; 946 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL: 947 err = mlxsw_sp_port_attr_br_vlan_proto_set(mlxsw_sp_port, 948 attr->orig_dev, 949 attr->u.vlan_protocol); 950 break; 951 case SWITCHDEV_ATTR_ID_PORT_MROUTER: 952 err = mlxsw_sp_port_attr_mrouter_set(mlxsw_sp_port, 953 attr->orig_dev, 954 attr->u.mrouter); 955 break; 956 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED: 957 err = mlxsw_sp_port_mc_disabled_set(mlxsw_sp_port, 958 attr->orig_dev, 959 attr->u.mc_disabled); 960 break; 961 case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER: 962 err = mlxsw_sp_port_attr_br_mrouter_set(mlxsw_sp_port, 963 attr->orig_dev, 964 attr->u.mrouter); 965 break; 966 default: 967 err = -EOPNOTSUPP; 968 break; 969 } 970 971 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 972 973 return err; 974 } 975 976 static int 977 mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, 978 struct mlxsw_sp_bridge_port *bridge_port, 979 struct netlink_ext_ack *extack) 980 { 981 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; 982 struct mlxsw_sp_bridge_device *bridge_device; 983 u16 local_port = mlxsw_sp_port->local_port; 984 u16 vid = mlxsw_sp_port_vlan->vid; 985 struct mlxsw_sp_fid *fid; 986 int err; 987 988 bridge_device = bridge_port->bridge_device; 989 fid = bridge_device->ops->fid_get(bridge_device, vid, extack); 990 if (IS_ERR(fid)) 991 return PTR_ERR(fid); 992 993 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, 994 bridge_port->flags & BR_FLOOD); 995 if (err) 996 goto err_fid_uc_flood_set; 997 998 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, 999 mlxsw_sp_mc_flood(bridge_port)); 1000 if (err) 1001 goto err_fid_mc_flood_set; 1002 1003 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, 1004 true); 1005 if (err) 1006 goto err_fid_bc_flood_set; 1007 1008 err = mlxsw_sp_fid_port_vid_map(fid, mlxsw_sp_port, vid); 1009 if (err) 1010 goto err_fid_port_vid_map; 1011 1012 mlxsw_sp_port_vlan->fid = fid; 1013 1014 return 0; 1015 1016 err_fid_port_vid_map: 1017 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false); 1018 err_fid_bc_flood_set: 1019 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false); 1020 err_fid_mc_flood_set: 1021 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false); 1022 err_fid_uc_flood_set: 1023 mlxsw_sp_fid_put(fid); 1024 return err; 1025 } 1026 1027 static void 1028 mlxsw_sp_port_vlan_fid_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) 1029 { 1030 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; 1031 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; 1032 u16 local_port = mlxsw_sp_port->local_port; 1033 u16 vid = mlxsw_sp_port_vlan->vid; 1034 1035 mlxsw_sp_port_vlan->fid = NULL; 1036 mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid); 1037 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false); 1038 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false); 1039 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false); 1040 mlxsw_sp_fid_put(fid); 1041 } 1042 1043 static u16 1044 mlxsw_sp_port_pvid_determine(const struct mlxsw_sp_port *mlxsw_sp_port, 1045 u16 vid, bool is_pvid) 1046 { 1047 if (is_pvid) 1048 return vid; 1049 else if (mlxsw_sp_port->pvid == vid) 1050 return 0; /* Dis-allow untagged packets */ 1051 else 1052 return mlxsw_sp_port->pvid; 1053 } 1054 1055 static int 1056 mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan, 1057 struct mlxsw_sp_bridge_port *bridge_port, 1058 struct netlink_ext_ack *extack) 1059 { 1060 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; 1061 struct mlxsw_sp_bridge_vlan *bridge_vlan; 1062 u16 vid = mlxsw_sp_port_vlan->vid; 1063 int err; 1064 1065 /* No need to continue if only VLAN flags were changed */ 1066 if (mlxsw_sp_port_vlan->bridge_port) 1067 return 0; 1068 1069 err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port, 1070 extack); 1071 if (err) 1072 return err; 1073 1074 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, 1075 bridge_port->flags & BR_LEARNING); 1076 if (err) 1077 goto err_port_vid_learning_set; 1078 1079 err = mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, 1080 bridge_port->stp_state); 1081 if (err) 1082 goto err_port_vid_stp_set; 1083 1084 bridge_vlan = mlxsw_sp_bridge_vlan_get(bridge_port, vid); 1085 if (!bridge_vlan) { 1086 err = -ENOMEM; 1087 goto err_bridge_vlan_get; 1088 } 1089 1090 list_add(&mlxsw_sp_port_vlan->bridge_vlan_node, 1091 &bridge_vlan->port_vlan_list); 1092 1093 mlxsw_sp_bridge_port_get(mlxsw_sp_port->mlxsw_sp->bridge, 1094 bridge_port->dev, extack); 1095 mlxsw_sp_port_vlan->bridge_port = bridge_port; 1096 1097 return 0; 1098 1099 err_bridge_vlan_get: 1100 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED); 1101 err_port_vid_stp_set: 1102 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false); 1103 err_port_vid_learning_set: 1104 mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan); 1105 return err; 1106 } 1107 1108 void 1109 mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan) 1110 { 1111 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port; 1112 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid; 1113 struct mlxsw_sp_bridge_vlan *bridge_vlan; 1114 struct mlxsw_sp_bridge_port *bridge_port; 1115 u16 vid = mlxsw_sp_port_vlan->vid; 1116 bool last_port, last_vlan; 1117 1118 if (WARN_ON(mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021Q && 1119 mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021D)) 1120 return; 1121 1122 bridge_port = mlxsw_sp_port_vlan->bridge_port; 1123 last_vlan = list_is_singular(&bridge_port->vlans_list); 1124 bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid); 1125 last_port = list_is_singular(&bridge_vlan->port_vlan_list); 1126 1127 list_del(&mlxsw_sp_port_vlan->bridge_vlan_node); 1128 mlxsw_sp_bridge_vlan_put(bridge_vlan); 1129 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED); 1130 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false); 1131 if (last_port) 1132 mlxsw_sp_bridge_port_fdb_flush(mlxsw_sp_port->mlxsw_sp, 1133 bridge_port, 1134 mlxsw_sp_fid_index(fid)); 1135 if (last_vlan) 1136 mlxsw_sp_bridge_port_mdb_flush(mlxsw_sp_port, bridge_port); 1137 1138 mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan); 1139 1140 mlxsw_sp_bridge_port_put(mlxsw_sp_port->mlxsw_sp->bridge, bridge_port); 1141 mlxsw_sp_port_vlan->bridge_port = NULL; 1142 } 1143 1144 static int 1145 mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port, 1146 struct mlxsw_sp_bridge_port *bridge_port, 1147 u16 vid, bool is_untagged, bool is_pvid, 1148 struct netlink_ext_ack *extack) 1149 { 1150 u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid); 1151 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1152 u16 old_pvid = mlxsw_sp_port->pvid; 1153 u16 proto; 1154 int err; 1155 1156 /* The only valid scenario in which a port-vlan already exists, is if 1157 * the VLAN flags were changed and the port-vlan is associated with the 1158 * correct bridge port 1159 */ 1160 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 1161 if (mlxsw_sp_port_vlan && 1162 mlxsw_sp_port_vlan->bridge_port != bridge_port) 1163 return -EEXIST; 1164 1165 if (!mlxsw_sp_port_vlan) { 1166 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_create(mlxsw_sp_port, 1167 vid); 1168 if (IS_ERR(mlxsw_sp_port_vlan)) 1169 return PTR_ERR(mlxsw_sp_port_vlan); 1170 } 1171 1172 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true, 1173 is_untagged); 1174 if (err) 1175 goto err_port_vlan_set; 1176 1177 br_vlan_get_proto(bridge_port->bridge_device->dev, &proto); 1178 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid, proto); 1179 if (err) 1180 goto err_port_pvid_set; 1181 1182 err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port, 1183 extack); 1184 if (err) 1185 goto err_port_vlan_bridge_join; 1186 1187 return 0; 1188 1189 err_port_vlan_bridge_join: 1190 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid, proto); 1191 err_port_pvid_set: 1192 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); 1193 err_port_vlan_set: 1194 mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); 1195 return err; 1196 } 1197 1198 static int 1199 mlxsw_sp_br_ban_rif_pvid_change(struct mlxsw_sp *mlxsw_sp, 1200 const struct net_device *br_dev, 1201 const struct switchdev_obj_port_vlan *vlan) 1202 { 1203 u16 pvid; 1204 1205 pvid = mlxsw_sp_rif_vid(mlxsw_sp, br_dev); 1206 if (!pvid) 1207 return 0; 1208 1209 if (vlan->flags & BRIDGE_VLAN_INFO_PVID) { 1210 if (vlan->vid != pvid) { 1211 netdev_err(br_dev, "Can't change PVID, it's used by router interface\n"); 1212 return -EBUSY; 1213 } 1214 } else { 1215 if (vlan->vid == pvid) { 1216 netdev_err(br_dev, "Can't remove PVID, it's used by router interface\n"); 1217 return -EBUSY; 1218 } 1219 } 1220 1221 return 0; 1222 } 1223 1224 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port, 1225 const struct switchdev_obj_port_vlan *vlan, 1226 struct netlink_ext_ack *extack) 1227 { 1228 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; 1229 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; 1230 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1231 struct net_device *orig_dev = vlan->obj.orig_dev; 1232 struct mlxsw_sp_bridge_port *bridge_port; 1233 1234 if (netif_is_bridge_master(orig_dev)) { 1235 int err = 0; 1236 1237 if ((vlan->flags & BRIDGE_VLAN_INFO_BRENTRY) && 1238 br_vlan_enabled(orig_dev)) 1239 err = mlxsw_sp_br_ban_rif_pvid_change(mlxsw_sp, 1240 orig_dev, vlan); 1241 if (!err) 1242 err = -EOPNOTSUPP; 1243 return err; 1244 } 1245 1246 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1247 if (WARN_ON(!bridge_port)) 1248 return -EINVAL; 1249 1250 if (!bridge_port->bridge_device->vlan_enabled) 1251 return 0; 1252 1253 return mlxsw_sp_bridge_port_vlan_add(mlxsw_sp_port, bridge_port, 1254 vlan->vid, flag_untagged, 1255 flag_pvid, extack); 1256 } 1257 1258 static enum mlxsw_reg_sfdf_flush_type mlxsw_sp_fdb_flush_type(bool lagged) 1259 { 1260 return lagged ? MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID : 1261 MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID; 1262 } 1263 1264 static int 1265 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp, 1266 struct mlxsw_sp_bridge_port *bridge_port, 1267 u16 fid_index) 1268 { 1269 bool lagged = bridge_port->lagged; 1270 char sfdf_pl[MLXSW_REG_SFDF_LEN]; 1271 u16 system_port; 1272 1273 system_port = lagged ? bridge_port->lag_id : bridge_port->system_port; 1274 mlxsw_reg_sfdf_pack(sfdf_pl, mlxsw_sp_fdb_flush_type(lagged)); 1275 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid_index); 1276 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, system_port); 1277 1278 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); 1279 } 1280 1281 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic) 1282 { 1283 return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS : 1284 MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_MLAG; 1285 } 1286 1287 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding) 1288 { 1289 return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT : 1290 MLXSW_REG_SFD_OP_WRITE_REMOVE; 1291 } 1292 1293 static int 1294 mlxsw_sp_port_fdb_tun_uc_op4(struct mlxsw_sp *mlxsw_sp, bool dynamic, 1295 const char *mac, u16 fid, __be32 addr, bool adding) 1296 { 1297 char *sfd_pl; 1298 u8 num_rec; 1299 u32 uip; 1300 int err; 1301 1302 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1303 if (!sfd_pl) 1304 return -ENOMEM; 1305 1306 uip = be32_to_cpu(addr); 1307 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1308 mlxsw_reg_sfd_uc_tunnel_pack4(sfd_pl, 0, 1309 mlxsw_sp_sfd_rec_policy(dynamic), mac, 1310 fid, MLXSW_REG_SFD_REC_ACTION_NOP, uip); 1311 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1312 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1313 if (err) 1314 goto out; 1315 1316 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1317 err = -EBUSY; 1318 1319 out: 1320 kfree(sfd_pl); 1321 return err; 1322 } 1323 1324 static int mlxsw_sp_port_fdb_tun_uc_op6_sfd_write(struct mlxsw_sp *mlxsw_sp, 1325 const char *mac, u16 fid, 1326 u32 kvdl_index, bool adding) 1327 { 1328 char *sfd_pl; 1329 u8 num_rec; 1330 int err; 1331 1332 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1333 if (!sfd_pl) 1334 return -ENOMEM; 1335 1336 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1337 mlxsw_reg_sfd_uc_tunnel_pack6(sfd_pl, 0, mac, fid, 1338 MLXSW_REG_SFD_REC_ACTION_NOP, kvdl_index); 1339 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1340 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1341 if (err) 1342 goto out; 1343 1344 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1345 err = -EBUSY; 1346 1347 out: 1348 kfree(sfd_pl); 1349 return err; 1350 } 1351 1352 static int mlxsw_sp_port_fdb_tun_uc_op6_add(struct mlxsw_sp *mlxsw_sp, 1353 const char *mac, u16 fid, 1354 const struct in6_addr *addr) 1355 { 1356 u32 kvdl_index; 1357 int err; 1358 1359 err = mlxsw_sp_nve_ipv6_addr_kvdl_set(mlxsw_sp, addr, &kvdl_index); 1360 if (err) 1361 return err; 1362 1363 err = mlxsw_sp_port_fdb_tun_uc_op6_sfd_write(mlxsw_sp, mac, fid, 1364 kvdl_index, true); 1365 if (err) 1366 goto err_sfd_write; 1367 1368 err = mlxsw_sp_nve_ipv6_addr_map_replace(mlxsw_sp, mac, fid, addr); 1369 if (err) 1370 /* Replace can fail only for creating new mapping, so removing 1371 * the FDB entry in the error path is OK. 1372 */ 1373 goto err_addr_replace; 1374 1375 return 0; 1376 1377 err_addr_replace: 1378 mlxsw_sp_port_fdb_tun_uc_op6_sfd_write(mlxsw_sp, mac, fid, kvdl_index, 1379 false); 1380 err_sfd_write: 1381 mlxsw_sp_nve_ipv6_addr_kvdl_unset(mlxsw_sp, addr); 1382 return err; 1383 } 1384 1385 static void mlxsw_sp_port_fdb_tun_uc_op6_del(struct mlxsw_sp *mlxsw_sp, 1386 const char *mac, u16 fid, 1387 const struct in6_addr *addr) 1388 { 1389 mlxsw_sp_nve_ipv6_addr_map_del(mlxsw_sp, mac, fid); 1390 mlxsw_sp_port_fdb_tun_uc_op6_sfd_write(mlxsw_sp, mac, fid, 0, false); 1391 mlxsw_sp_nve_ipv6_addr_kvdl_unset(mlxsw_sp, addr); 1392 } 1393 1394 static int 1395 mlxsw_sp_port_fdb_tun_uc_op6(struct mlxsw_sp *mlxsw_sp, const char *mac, 1396 u16 fid, const struct in6_addr *addr, bool adding) 1397 { 1398 if (adding) 1399 return mlxsw_sp_port_fdb_tun_uc_op6_add(mlxsw_sp, mac, fid, 1400 addr); 1401 1402 mlxsw_sp_port_fdb_tun_uc_op6_del(mlxsw_sp, mac, fid, addr); 1403 return 0; 1404 } 1405 1406 static int mlxsw_sp_port_fdb_tunnel_uc_op(struct mlxsw_sp *mlxsw_sp, 1407 const char *mac, u16 fid, 1408 enum mlxsw_sp_l3proto proto, 1409 const union mlxsw_sp_l3addr *addr, 1410 bool adding, bool dynamic) 1411 { 1412 switch (proto) { 1413 case MLXSW_SP_L3_PROTO_IPV4: 1414 return mlxsw_sp_port_fdb_tun_uc_op4(mlxsw_sp, dynamic, mac, fid, 1415 addr->addr4, adding); 1416 case MLXSW_SP_L3_PROTO_IPV6: 1417 return mlxsw_sp_port_fdb_tun_uc_op6(mlxsw_sp, mac, fid, 1418 &addr->addr6, adding); 1419 default: 1420 WARN_ON(1); 1421 return -EOPNOTSUPP; 1422 } 1423 } 1424 1425 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u16 local_port, 1426 const char *mac, u16 fid, bool adding, 1427 enum mlxsw_reg_sfd_rec_action action, 1428 enum mlxsw_reg_sfd_rec_policy policy) 1429 { 1430 char *sfd_pl; 1431 u8 num_rec; 1432 int err; 1433 1434 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1435 if (!sfd_pl) 1436 return -ENOMEM; 1437 1438 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1439 mlxsw_reg_sfd_uc_pack(sfd_pl, 0, policy, mac, fid, action, local_port); 1440 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1441 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1442 if (err) 1443 goto out; 1444 1445 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1446 err = -EBUSY; 1447 1448 out: 1449 kfree(sfd_pl); 1450 return err; 1451 } 1452 1453 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u16 local_port, 1454 const char *mac, u16 fid, bool adding, 1455 bool dynamic) 1456 { 1457 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding, 1458 MLXSW_REG_SFD_REC_ACTION_NOP, 1459 mlxsw_sp_sfd_rec_policy(dynamic)); 1460 } 1461 1462 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid, 1463 bool adding) 1464 { 1465 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding, 1466 MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER, 1467 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY); 1468 } 1469 1470 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id, 1471 const char *mac, u16 fid, u16 lag_vid, 1472 bool adding, bool dynamic) 1473 { 1474 char *sfd_pl; 1475 u8 num_rec; 1476 int err; 1477 1478 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1479 if (!sfd_pl) 1480 return -ENOMEM; 1481 1482 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1483 mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), 1484 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP, 1485 lag_vid, lag_id); 1486 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1487 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1488 if (err) 1489 goto out; 1490 1491 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1492 err = -EBUSY; 1493 1494 out: 1495 kfree(sfd_pl); 1496 return err; 1497 } 1498 1499 static int 1500 mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port, 1501 struct switchdev_notifier_fdb_info *fdb_info, bool adding) 1502 { 1503 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1504 struct net_device *orig_dev = fdb_info->info.dev; 1505 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1506 struct mlxsw_sp_bridge_device *bridge_device; 1507 struct mlxsw_sp_bridge_port *bridge_port; 1508 u16 fid_index, vid; 1509 1510 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1511 if (!bridge_port) 1512 return -EINVAL; 1513 1514 bridge_device = bridge_port->bridge_device; 1515 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, 1516 bridge_device, 1517 fdb_info->vid); 1518 if (!mlxsw_sp_port_vlan) 1519 return 0; 1520 1521 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); 1522 vid = mlxsw_sp_port_vlan->vid; 1523 1524 if (!bridge_port->lagged) 1525 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 1526 bridge_port->system_port, 1527 fdb_info->addr, fid_index, 1528 adding, false); 1529 else 1530 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, 1531 bridge_port->lag_id, 1532 fdb_info->addr, fid_index, 1533 vid, adding, false); 1534 } 1535 1536 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr, 1537 u16 fid, u16 mid_idx, bool adding) 1538 { 1539 char *sfd_pl; 1540 u8 num_rec; 1541 int err; 1542 1543 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1544 if (!sfd_pl) 1545 return -ENOMEM; 1546 1547 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1548 mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid, 1549 MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx); 1550 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1551 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1552 if (err) 1553 goto out; 1554 1555 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1556 err = -EBUSY; 1557 1558 out: 1559 kfree(sfd_pl); 1560 return err; 1561 } 1562 1563 static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx, 1564 long *ports_bitmap, 1565 bool set_router_port) 1566 { 1567 char *smid2_pl; 1568 int err, i; 1569 1570 smid2_pl = kmalloc(MLXSW_REG_SMID2_LEN, GFP_KERNEL); 1571 if (!smid2_pl) 1572 return -ENOMEM; 1573 1574 mlxsw_reg_smid2_pack(smid2_pl, mid_idx, 0, false); 1575 for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) { 1576 if (mlxsw_sp->ports[i]) 1577 mlxsw_reg_smid2_port_mask_set(smid2_pl, i, 1); 1578 } 1579 1580 mlxsw_reg_smid2_port_mask_set(smid2_pl, 1581 mlxsw_sp_router_port(mlxsw_sp), 1); 1582 1583 for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core)) 1584 mlxsw_reg_smid2_port_set(smid2_pl, i, 1); 1585 1586 mlxsw_reg_smid2_port_set(smid2_pl, mlxsw_sp_router_port(mlxsw_sp), 1587 set_router_port); 1588 1589 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid2), smid2_pl); 1590 kfree(smid2_pl); 1591 return err; 1592 } 1593 1594 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, 1595 u16 mid_idx, bool add) 1596 { 1597 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1598 char *smid2_pl; 1599 int err; 1600 1601 smid2_pl = kmalloc(MLXSW_REG_SMID2_LEN, GFP_KERNEL); 1602 if (!smid2_pl) 1603 return -ENOMEM; 1604 1605 mlxsw_reg_smid2_pack(smid2_pl, mid_idx, mlxsw_sp_port->local_port, add); 1606 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid2), smid2_pl); 1607 kfree(smid2_pl); 1608 return err; 1609 } 1610 1611 static struct 1612 mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp_bridge_device *bridge_device, 1613 const unsigned char *addr, 1614 u16 fid) 1615 { 1616 struct mlxsw_sp_mid *mid; 1617 1618 list_for_each_entry(mid, &bridge_device->mids_list, list) { 1619 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid) 1620 return mid; 1621 } 1622 return NULL; 1623 } 1624 1625 static void 1626 mlxsw_sp_bridge_port_get_ports_bitmap(struct mlxsw_sp *mlxsw_sp, 1627 struct mlxsw_sp_bridge_port *bridge_port, 1628 unsigned long *ports_bitmap) 1629 { 1630 struct mlxsw_sp_port *mlxsw_sp_port; 1631 u64 max_lag_members, i; 1632 int lag_id; 1633 1634 if (!bridge_port->lagged) { 1635 set_bit(bridge_port->system_port, ports_bitmap); 1636 } else { 1637 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, 1638 MAX_LAG_MEMBERS); 1639 lag_id = bridge_port->lag_id; 1640 for (i = 0; i < max_lag_members; i++) { 1641 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, 1642 lag_id, i); 1643 if (mlxsw_sp_port) 1644 set_bit(mlxsw_sp_port->local_port, 1645 ports_bitmap); 1646 } 1647 } 1648 } 1649 1650 static void 1651 mlxsw_sp_mc_get_mrouters_bitmap(unsigned long *flood_bitmap, 1652 struct mlxsw_sp_bridge_device *bridge_device, 1653 struct mlxsw_sp *mlxsw_sp) 1654 { 1655 struct mlxsw_sp_bridge_port *bridge_port; 1656 1657 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { 1658 if (bridge_port->mrouter) { 1659 mlxsw_sp_bridge_port_get_ports_bitmap(mlxsw_sp, 1660 bridge_port, 1661 flood_bitmap); 1662 } 1663 } 1664 } 1665 1666 static bool 1667 mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp, 1668 struct mlxsw_sp_mid *mid, 1669 struct mlxsw_sp_bridge_device *bridge_device) 1670 { 1671 long *flood_bitmap; 1672 int num_of_ports; 1673 u16 mid_idx; 1674 int err; 1675 1676 mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap, 1677 MLXSW_SP_MID_MAX); 1678 if (mid_idx == MLXSW_SP_MID_MAX) 1679 return false; 1680 1681 num_of_ports = mlxsw_core_max_ports(mlxsw_sp->core); 1682 flood_bitmap = bitmap_alloc(num_of_ports, GFP_KERNEL); 1683 if (!flood_bitmap) 1684 return false; 1685 1686 bitmap_copy(flood_bitmap, mid->ports_in_mid, num_of_ports); 1687 mlxsw_sp_mc_get_mrouters_bitmap(flood_bitmap, bridge_device, mlxsw_sp); 1688 1689 mid->mid = mid_idx; 1690 err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx, flood_bitmap, 1691 bridge_device->mrouter); 1692 bitmap_free(flood_bitmap); 1693 if (err) 1694 return false; 1695 1696 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid_idx, 1697 true); 1698 if (err) 1699 return false; 1700 1701 set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap); 1702 mid->in_hw = true; 1703 return true; 1704 } 1705 1706 static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp, 1707 struct mlxsw_sp_mid *mid) 1708 { 1709 if (!mid->in_hw) 1710 return 0; 1711 1712 clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap); 1713 mid->in_hw = false; 1714 return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid, 1715 false); 1716 } 1717 1718 static struct 1719 mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp, 1720 struct mlxsw_sp_bridge_device *bridge_device, 1721 const unsigned char *addr, 1722 u16 fid) 1723 { 1724 struct mlxsw_sp_mid *mid; 1725 1726 mid = kzalloc(sizeof(*mid), GFP_KERNEL); 1727 if (!mid) 1728 return NULL; 1729 1730 mid->ports_in_mid = bitmap_zalloc(mlxsw_core_max_ports(mlxsw_sp->core), 1731 GFP_KERNEL); 1732 if (!mid->ports_in_mid) 1733 goto err_ports_in_mid_alloc; 1734 1735 ether_addr_copy(mid->addr, addr); 1736 mid->fid = fid; 1737 mid->in_hw = false; 1738 1739 if (!bridge_device->multicast_enabled) 1740 goto out; 1741 1742 if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device)) 1743 goto err_write_mdb_entry; 1744 1745 out: 1746 list_add_tail(&mid->list, &bridge_device->mids_list); 1747 return mid; 1748 1749 err_write_mdb_entry: 1750 bitmap_free(mid->ports_in_mid); 1751 err_ports_in_mid_alloc: 1752 kfree(mid); 1753 return NULL; 1754 } 1755 1756 static int mlxsw_sp_port_remove_from_mid(struct mlxsw_sp_port *mlxsw_sp_port, 1757 struct mlxsw_sp_mid *mid) 1758 { 1759 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1760 int err = 0; 1761 1762 clear_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); 1763 if (bitmap_empty(mid->ports_in_mid, 1764 mlxsw_core_max_ports(mlxsw_sp->core))) { 1765 err = mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid); 1766 list_del(&mid->list); 1767 bitmap_free(mid->ports_in_mid); 1768 kfree(mid); 1769 } 1770 return err; 1771 } 1772 1773 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port, 1774 const struct switchdev_obj_port_mdb *mdb) 1775 { 1776 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1777 struct net_device *orig_dev = mdb->obj.orig_dev; 1778 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1779 struct net_device *dev = mlxsw_sp_port->dev; 1780 struct mlxsw_sp_bridge_device *bridge_device; 1781 struct mlxsw_sp_bridge_port *bridge_port; 1782 struct mlxsw_sp_mid *mid; 1783 u16 fid_index; 1784 int err = 0; 1785 1786 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1787 if (!bridge_port) 1788 return 0; 1789 1790 bridge_device = bridge_port->bridge_device; 1791 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, 1792 bridge_device, 1793 mdb->vid); 1794 if (!mlxsw_sp_port_vlan) 1795 return 0; 1796 1797 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); 1798 1799 mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index); 1800 if (!mid) { 1801 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, bridge_device, mdb->addr, 1802 fid_index); 1803 if (!mid) { 1804 netdev_err(dev, "Unable to allocate MC group\n"); 1805 return -ENOMEM; 1806 } 1807 } 1808 set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); 1809 1810 if (!bridge_device->multicast_enabled) 1811 return 0; 1812 1813 if (bridge_port->mrouter) 1814 return 0; 1815 1816 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true); 1817 if (err) { 1818 netdev_err(dev, "Unable to set SMID\n"); 1819 goto err_out; 1820 } 1821 1822 return 0; 1823 1824 err_out: 1825 mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); 1826 return err; 1827 } 1828 1829 static void 1830 mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port, 1831 struct mlxsw_sp_bridge_device 1832 *bridge_device) 1833 { 1834 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1835 struct mlxsw_sp_mid *mid; 1836 bool mc_enabled; 1837 1838 mc_enabled = bridge_device->multicast_enabled; 1839 1840 list_for_each_entry(mid, &bridge_device->mids_list, list) { 1841 if (mc_enabled) 1842 mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, 1843 bridge_device); 1844 else 1845 mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid); 1846 } 1847 } 1848 1849 static void 1850 mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port, 1851 struct mlxsw_sp_bridge_port *bridge_port, 1852 bool add) 1853 { 1854 struct mlxsw_sp_bridge_device *bridge_device; 1855 struct mlxsw_sp_mid *mid; 1856 1857 bridge_device = bridge_port->bridge_device; 1858 1859 list_for_each_entry(mid, &bridge_device->mids_list, list) { 1860 if (!test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) 1861 mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, add); 1862 } 1863 } 1864 1865 static int mlxsw_sp_port_obj_add(struct net_device *dev, const void *ctx, 1866 const struct switchdev_obj *obj, 1867 struct netlink_ext_ack *extack) 1868 { 1869 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1870 const struct switchdev_obj_port_vlan *vlan; 1871 int err = 0; 1872 1873 switch (obj->id) { 1874 case SWITCHDEV_OBJ_ID_PORT_VLAN: 1875 vlan = SWITCHDEV_OBJ_PORT_VLAN(obj); 1876 1877 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, extack); 1878 1879 /* The event is emitted before the changes are actually 1880 * applied to the bridge. Therefore schedule the respin 1881 * call for later, so that the respin logic sees the 1882 * updated bridge state. 1883 */ 1884 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 1885 break; 1886 case SWITCHDEV_OBJ_ID_PORT_MDB: 1887 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port, 1888 SWITCHDEV_OBJ_PORT_MDB(obj)); 1889 break; 1890 default: 1891 err = -EOPNOTSUPP; 1892 break; 1893 } 1894 1895 return err; 1896 } 1897 1898 static void 1899 mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port, 1900 struct mlxsw_sp_bridge_port *bridge_port, u16 vid) 1901 { 1902 u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : mlxsw_sp_port->pvid; 1903 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1904 u16 proto; 1905 1906 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 1907 if (WARN_ON(!mlxsw_sp_port_vlan)) 1908 return; 1909 1910 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); 1911 br_vlan_get_proto(bridge_port->bridge_device->dev, &proto); 1912 mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid, proto); 1913 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); 1914 mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); 1915 } 1916 1917 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port, 1918 const struct switchdev_obj_port_vlan *vlan) 1919 { 1920 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1921 struct net_device *orig_dev = vlan->obj.orig_dev; 1922 struct mlxsw_sp_bridge_port *bridge_port; 1923 1924 if (netif_is_bridge_master(orig_dev)) 1925 return -EOPNOTSUPP; 1926 1927 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1928 if (WARN_ON(!bridge_port)) 1929 return -EINVAL; 1930 1931 if (!bridge_port->bridge_device->vlan_enabled) 1932 return 0; 1933 1934 mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vlan->vid); 1935 1936 return 0; 1937 } 1938 1939 static int 1940 __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, 1941 struct mlxsw_sp_bridge_port *bridge_port, 1942 struct mlxsw_sp_mid *mid) 1943 { 1944 struct net_device *dev = mlxsw_sp_port->dev; 1945 int err; 1946 1947 if (bridge_port->bridge_device->multicast_enabled && 1948 !bridge_port->mrouter) { 1949 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); 1950 if (err) 1951 netdev_err(dev, "Unable to remove port from SMID\n"); 1952 } 1953 1954 err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); 1955 if (err) 1956 netdev_err(dev, "Unable to remove MC SFD\n"); 1957 1958 return err; 1959 } 1960 1961 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, 1962 const struct switchdev_obj_port_mdb *mdb) 1963 { 1964 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1965 struct net_device *orig_dev = mdb->obj.orig_dev; 1966 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1967 struct mlxsw_sp_bridge_device *bridge_device; 1968 struct net_device *dev = mlxsw_sp_port->dev; 1969 struct mlxsw_sp_bridge_port *bridge_port; 1970 struct mlxsw_sp_mid *mid; 1971 u16 fid_index; 1972 1973 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1974 if (!bridge_port) 1975 return 0; 1976 1977 bridge_device = bridge_port->bridge_device; 1978 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, 1979 bridge_device, 1980 mdb->vid); 1981 if (!mlxsw_sp_port_vlan) 1982 return 0; 1983 1984 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); 1985 1986 mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index); 1987 if (!mid) { 1988 netdev_err(dev, "Unable to remove port from MC DB\n"); 1989 return -EINVAL; 1990 } 1991 1992 return __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid); 1993 } 1994 1995 static void 1996 mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, 1997 struct mlxsw_sp_bridge_port *bridge_port) 1998 { 1999 struct mlxsw_sp_bridge_device *bridge_device; 2000 struct mlxsw_sp_mid *mid, *tmp; 2001 2002 bridge_device = bridge_port->bridge_device; 2003 2004 list_for_each_entry_safe(mid, tmp, &bridge_device->mids_list, list) { 2005 if (test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) { 2006 __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, 2007 mid); 2008 } else if (bridge_device->multicast_enabled && 2009 bridge_port->mrouter) { 2010 mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); 2011 } 2012 } 2013 } 2014 2015 static int mlxsw_sp_port_obj_del(struct net_device *dev, const void *ctx, 2016 const struct switchdev_obj *obj) 2017 { 2018 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 2019 int err = 0; 2020 2021 switch (obj->id) { 2022 case SWITCHDEV_OBJ_ID_PORT_VLAN: 2023 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port, 2024 SWITCHDEV_OBJ_PORT_VLAN(obj)); 2025 break; 2026 case SWITCHDEV_OBJ_ID_PORT_MDB: 2027 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port, 2028 SWITCHDEV_OBJ_PORT_MDB(obj)); 2029 break; 2030 default: 2031 err = -EOPNOTSUPP; 2032 break; 2033 } 2034 2035 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 2036 2037 return err; 2038 } 2039 2040 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp, 2041 u16 lag_id) 2042 { 2043 struct mlxsw_sp_port *mlxsw_sp_port; 2044 u64 max_lag_members; 2045 int i; 2046 2047 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, 2048 MAX_LAG_MEMBERS); 2049 for (i = 0; i < max_lag_members; i++) { 2050 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); 2051 if (mlxsw_sp_port) 2052 return mlxsw_sp_port; 2053 } 2054 return NULL; 2055 } 2056 2057 static int 2058 mlxsw_sp_bridge_vlan_aware_port_join(struct mlxsw_sp_bridge_port *bridge_port, 2059 struct mlxsw_sp_port *mlxsw_sp_port, 2060 struct netlink_ext_ack *extack) 2061 { 2062 if (is_vlan_dev(bridge_port->dev)) { 2063 NL_SET_ERR_MSG_MOD(extack, "Can not enslave a VLAN device to a VLAN-aware bridge"); 2064 return -EINVAL; 2065 } 2066 2067 /* Port is no longer usable as a router interface */ 2068 if (mlxsw_sp_port->default_vlan->fid) 2069 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan); 2070 2071 return 0; 2072 } 2073 2074 static int 2075 mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2076 struct mlxsw_sp_bridge_port *bridge_port, 2077 struct mlxsw_sp_port *mlxsw_sp_port, 2078 struct netlink_ext_ack *extack) 2079 { 2080 return mlxsw_sp_bridge_vlan_aware_port_join(bridge_port, mlxsw_sp_port, 2081 extack); 2082 } 2083 2084 static void 2085 mlxsw_sp_bridge_vlan_aware_port_leave(struct mlxsw_sp_port *mlxsw_sp_port) 2086 { 2087 /* Make sure untagged frames are allowed to ingress */ 2088 mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID, 2089 ETH_P_8021Q); 2090 } 2091 2092 static void 2093 mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2094 struct mlxsw_sp_bridge_port *bridge_port, 2095 struct mlxsw_sp_port *mlxsw_sp_port) 2096 { 2097 mlxsw_sp_bridge_vlan_aware_port_leave(mlxsw_sp_port); 2098 } 2099 2100 static int 2101 mlxsw_sp_bridge_vlan_aware_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2102 const struct net_device *vxlan_dev, 2103 u16 vid, u16 ethertype, 2104 struct netlink_ext_ack *extack) 2105 { 2106 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2107 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 2108 struct mlxsw_sp_nve_params params = { 2109 .type = MLXSW_SP_NVE_TYPE_VXLAN, 2110 .vni = vxlan->cfg.vni, 2111 .dev = vxlan_dev, 2112 .ethertype = ethertype, 2113 }; 2114 struct mlxsw_sp_fid *fid; 2115 int err; 2116 2117 /* If the VLAN is 0, we need to find the VLAN that is configured as 2118 * PVID and egress untagged on the bridge port of the VxLAN device. 2119 * It is possible no such VLAN exists 2120 */ 2121 if (!vid) { 2122 err = mlxsw_sp_vxlan_mapped_vid(vxlan_dev, &vid); 2123 if (err || !vid) 2124 return err; 2125 } 2126 2127 fid = mlxsw_sp_fid_8021q_get(mlxsw_sp, vid); 2128 if (IS_ERR(fid)) { 2129 NL_SET_ERR_MSG_MOD(extack, "Failed to create 802.1Q FID"); 2130 return PTR_ERR(fid); 2131 } 2132 2133 if (mlxsw_sp_fid_vni_is_set(fid)) { 2134 NL_SET_ERR_MSG_MOD(extack, "VNI is already set on FID"); 2135 err = -EINVAL; 2136 goto err_vni_exists; 2137 } 2138 2139 err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, ¶ms, extack); 2140 if (err) 2141 goto err_nve_fid_enable; 2142 2143 return 0; 2144 2145 err_nve_fid_enable: 2146 err_vni_exists: 2147 mlxsw_sp_fid_put(fid); 2148 return err; 2149 } 2150 2151 static int 2152 mlxsw_sp_bridge_8021q_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2153 const struct net_device *vxlan_dev, u16 vid, 2154 struct netlink_ext_ack *extack) 2155 { 2156 return mlxsw_sp_bridge_vlan_aware_vxlan_join(bridge_device, vxlan_dev, 2157 vid, ETH_P_8021Q, extack); 2158 } 2159 2160 static struct net_device * 2161 mlxsw_sp_bridge_8021q_vxlan_dev_find(struct net_device *br_dev, u16 vid) 2162 { 2163 struct net_device *dev; 2164 struct list_head *iter; 2165 2166 netdev_for_each_lower_dev(br_dev, dev, iter) { 2167 u16 pvid; 2168 int err; 2169 2170 if (!netif_is_vxlan(dev)) 2171 continue; 2172 2173 err = mlxsw_sp_vxlan_mapped_vid(dev, &pvid); 2174 if (err || pvid != vid) 2175 continue; 2176 2177 return dev; 2178 } 2179 2180 return NULL; 2181 } 2182 2183 static struct mlxsw_sp_fid * 2184 mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device, 2185 u16 vid, struct netlink_ext_ack *extack) 2186 { 2187 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2188 2189 return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid); 2190 } 2191 2192 static struct mlxsw_sp_fid * 2193 mlxsw_sp_bridge_8021q_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device, 2194 u16 vid) 2195 { 2196 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2197 2198 return mlxsw_sp_fid_8021q_lookup(mlxsw_sp, vid); 2199 } 2200 2201 static u16 2202 mlxsw_sp_bridge_8021q_fid_vid(struct mlxsw_sp_bridge_device *bridge_device, 2203 const struct mlxsw_sp_fid *fid) 2204 { 2205 return mlxsw_sp_fid_8021q_vid(fid); 2206 } 2207 2208 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = { 2209 .port_join = mlxsw_sp_bridge_8021q_port_join, 2210 .port_leave = mlxsw_sp_bridge_8021q_port_leave, 2211 .vxlan_join = mlxsw_sp_bridge_8021q_vxlan_join, 2212 .fid_get = mlxsw_sp_bridge_8021q_fid_get, 2213 .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, 2214 .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, 2215 }; 2216 2217 static bool 2218 mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port, 2219 const struct net_device *br_dev) 2220 { 2221 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2222 2223 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, 2224 list) { 2225 if (mlxsw_sp_port_vlan->bridge_port && 2226 mlxsw_sp_port_vlan->bridge_port->bridge_device->dev == 2227 br_dev) 2228 return true; 2229 } 2230 2231 return false; 2232 } 2233 2234 static int 2235 mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2236 struct mlxsw_sp_bridge_port *bridge_port, 2237 struct mlxsw_sp_port *mlxsw_sp_port, 2238 struct netlink_ext_ack *extack) 2239 { 2240 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2241 struct net_device *dev = bridge_port->dev; 2242 u16 vid; 2243 2244 vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID; 2245 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 2246 if (WARN_ON(!mlxsw_sp_port_vlan)) 2247 return -EINVAL; 2248 2249 if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) { 2250 NL_SET_ERR_MSG_MOD(extack, "Can not bridge VLAN uppers of the same port"); 2251 return -EINVAL; 2252 } 2253 2254 /* Port is no longer usable as a router interface */ 2255 if (mlxsw_sp_port_vlan->fid) 2256 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); 2257 2258 return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port, 2259 extack); 2260 } 2261 2262 static void 2263 mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2264 struct mlxsw_sp_bridge_port *bridge_port, 2265 struct mlxsw_sp_port *mlxsw_sp_port) 2266 { 2267 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2268 struct net_device *dev = bridge_port->dev; 2269 u16 vid; 2270 2271 vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID; 2272 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 2273 if (!mlxsw_sp_port_vlan || !mlxsw_sp_port_vlan->bridge_port) 2274 return; 2275 2276 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); 2277 } 2278 2279 static int 2280 mlxsw_sp_bridge_8021d_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2281 const struct net_device *vxlan_dev, u16 vid, 2282 struct netlink_ext_ack *extack) 2283 { 2284 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2285 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 2286 struct mlxsw_sp_nve_params params = { 2287 .type = MLXSW_SP_NVE_TYPE_VXLAN, 2288 .vni = vxlan->cfg.vni, 2289 .dev = vxlan_dev, 2290 .ethertype = ETH_P_8021Q, 2291 }; 2292 struct mlxsw_sp_fid *fid; 2293 int err; 2294 2295 fid = mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex); 2296 if (IS_ERR(fid)) { 2297 NL_SET_ERR_MSG_MOD(extack, "Failed to create 802.1D FID"); 2298 return -EINVAL; 2299 } 2300 2301 if (mlxsw_sp_fid_vni_is_set(fid)) { 2302 NL_SET_ERR_MSG_MOD(extack, "VNI is already set on FID"); 2303 err = -EINVAL; 2304 goto err_vni_exists; 2305 } 2306 2307 err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, ¶ms, extack); 2308 if (err) 2309 goto err_nve_fid_enable; 2310 2311 return 0; 2312 2313 err_nve_fid_enable: 2314 err_vni_exists: 2315 mlxsw_sp_fid_put(fid); 2316 return err; 2317 } 2318 2319 static struct mlxsw_sp_fid * 2320 mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device, 2321 u16 vid, struct netlink_ext_ack *extack) 2322 { 2323 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2324 2325 return mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex); 2326 } 2327 2328 static struct mlxsw_sp_fid * 2329 mlxsw_sp_bridge_8021d_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device, 2330 u16 vid) 2331 { 2332 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2333 2334 /* The only valid VLAN for a VLAN-unaware bridge is 0 */ 2335 if (vid) 2336 return NULL; 2337 2338 return mlxsw_sp_fid_8021d_lookup(mlxsw_sp, bridge_device->dev->ifindex); 2339 } 2340 2341 static u16 2342 mlxsw_sp_bridge_8021d_fid_vid(struct mlxsw_sp_bridge_device *bridge_device, 2343 const struct mlxsw_sp_fid *fid) 2344 { 2345 return 0; 2346 } 2347 2348 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = { 2349 .port_join = mlxsw_sp_bridge_8021d_port_join, 2350 .port_leave = mlxsw_sp_bridge_8021d_port_leave, 2351 .vxlan_join = mlxsw_sp_bridge_8021d_vxlan_join, 2352 .fid_get = mlxsw_sp_bridge_8021d_fid_get, 2353 .fid_lookup = mlxsw_sp_bridge_8021d_fid_lookup, 2354 .fid_vid = mlxsw_sp_bridge_8021d_fid_vid, 2355 }; 2356 2357 static int 2358 mlxsw_sp_bridge_8021ad_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2359 struct mlxsw_sp_bridge_port *bridge_port, 2360 struct mlxsw_sp_port *mlxsw_sp_port, 2361 struct netlink_ext_ack *extack) 2362 { 2363 int err; 2364 2365 err = mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, true, false); 2366 if (err) 2367 return err; 2368 2369 err = mlxsw_sp_bridge_vlan_aware_port_join(bridge_port, mlxsw_sp_port, 2370 extack); 2371 if (err) 2372 goto err_bridge_vlan_aware_port_join; 2373 2374 return 0; 2375 2376 err_bridge_vlan_aware_port_join: 2377 mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, false, true); 2378 return err; 2379 } 2380 2381 static void 2382 mlxsw_sp_bridge_8021ad_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2383 struct mlxsw_sp_bridge_port *bridge_port, 2384 struct mlxsw_sp_port *mlxsw_sp_port) 2385 { 2386 mlxsw_sp_bridge_vlan_aware_port_leave(mlxsw_sp_port); 2387 mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, false, true); 2388 } 2389 2390 static int 2391 mlxsw_sp_bridge_8021ad_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2392 const struct net_device *vxlan_dev, u16 vid, 2393 struct netlink_ext_ack *extack) 2394 { 2395 return mlxsw_sp_bridge_vlan_aware_vxlan_join(bridge_device, vxlan_dev, 2396 vid, ETH_P_8021AD, extack); 2397 } 2398 2399 static const struct mlxsw_sp_bridge_ops mlxsw_sp1_bridge_8021ad_ops = { 2400 .port_join = mlxsw_sp_bridge_8021ad_port_join, 2401 .port_leave = mlxsw_sp_bridge_8021ad_port_leave, 2402 .vxlan_join = mlxsw_sp_bridge_8021ad_vxlan_join, 2403 .fid_get = mlxsw_sp_bridge_8021q_fid_get, 2404 .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, 2405 .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, 2406 }; 2407 2408 static int 2409 mlxsw_sp2_bridge_8021ad_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2410 struct mlxsw_sp_bridge_port *bridge_port, 2411 struct mlxsw_sp_port *mlxsw_sp_port, 2412 struct netlink_ext_ack *extack) 2413 { 2414 int err; 2415 2416 /* The EtherType of decapsulated packets is determined at the egress 2417 * port to allow 802.1d and 802.1ad bridges with VXLAN devices to 2418 * co-exist. 2419 */ 2420 err = mlxsw_sp_port_egress_ethtype_set(mlxsw_sp_port, ETH_P_8021AD); 2421 if (err) 2422 return err; 2423 2424 err = mlxsw_sp_bridge_8021ad_port_join(bridge_device, bridge_port, 2425 mlxsw_sp_port, extack); 2426 if (err) 2427 goto err_bridge_8021ad_port_join; 2428 2429 return 0; 2430 2431 err_bridge_8021ad_port_join: 2432 mlxsw_sp_port_egress_ethtype_set(mlxsw_sp_port, ETH_P_8021Q); 2433 return err; 2434 } 2435 2436 static void 2437 mlxsw_sp2_bridge_8021ad_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2438 struct mlxsw_sp_bridge_port *bridge_port, 2439 struct mlxsw_sp_port *mlxsw_sp_port) 2440 { 2441 mlxsw_sp_bridge_8021ad_port_leave(bridge_device, bridge_port, 2442 mlxsw_sp_port); 2443 mlxsw_sp_port_egress_ethtype_set(mlxsw_sp_port, ETH_P_8021Q); 2444 } 2445 2446 static const struct mlxsw_sp_bridge_ops mlxsw_sp2_bridge_8021ad_ops = { 2447 .port_join = mlxsw_sp2_bridge_8021ad_port_join, 2448 .port_leave = mlxsw_sp2_bridge_8021ad_port_leave, 2449 .vxlan_join = mlxsw_sp_bridge_8021ad_vxlan_join, 2450 .fid_get = mlxsw_sp_bridge_8021q_fid_get, 2451 .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, 2452 .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, 2453 }; 2454 2455 int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port, 2456 struct net_device *brport_dev, 2457 struct net_device *br_dev, 2458 struct netlink_ext_ack *extack) 2459 { 2460 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 2461 struct mlxsw_sp_bridge_device *bridge_device; 2462 struct mlxsw_sp_bridge_port *bridge_port; 2463 int err; 2464 2465 bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev, 2466 extack); 2467 if (IS_ERR(bridge_port)) 2468 return PTR_ERR(bridge_port); 2469 bridge_device = bridge_port->bridge_device; 2470 2471 err = bridge_device->ops->port_join(bridge_device, bridge_port, 2472 mlxsw_sp_port, extack); 2473 if (err) 2474 goto err_port_join; 2475 2476 return 0; 2477 2478 err_port_join: 2479 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port); 2480 return err; 2481 } 2482 2483 void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, 2484 struct net_device *brport_dev, 2485 struct net_device *br_dev) 2486 { 2487 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 2488 struct mlxsw_sp_bridge_device *bridge_device; 2489 struct mlxsw_sp_bridge_port *bridge_port; 2490 2491 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2492 if (!bridge_device) 2493 return; 2494 bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev); 2495 if (!bridge_port) 2496 return; 2497 2498 bridge_device->ops->port_leave(bridge_device, bridge_port, 2499 mlxsw_sp_port); 2500 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port); 2501 } 2502 2503 int mlxsw_sp_bridge_vxlan_join(struct mlxsw_sp *mlxsw_sp, 2504 const struct net_device *br_dev, 2505 const struct net_device *vxlan_dev, u16 vid, 2506 struct netlink_ext_ack *extack) 2507 { 2508 struct mlxsw_sp_bridge_device *bridge_device; 2509 2510 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2511 if (WARN_ON(!bridge_device)) 2512 return -EINVAL; 2513 2514 return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, vid, 2515 extack); 2516 } 2517 2518 void mlxsw_sp_bridge_vxlan_leave(struct mlxsw_sp *mlxsw_sp, 2519 const struct net_device *vxlan_dev) 2520 { 2521 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 2522 struct mlxsw_sp_fid *fid; 2523 2524 /* If the VxLAN device is down, then the FID does not have a VNI */ 2525 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan->cfg.vni); 2526 if (!fid) 2527 return; 2528 2529 mlxsw_sp_nve_fid_disable(mlxsw_sp, fid); 2530 /* Drop both the reference we just took during lookup and the reference 2531 * the VXLAN device took. 2532 */ 2533 mlxsw_sp_fid_put(fid); 2534 mlxsw_sp_fid_put(fid); 2535 } 2536 2537 static void 2538 mlxsw_sp_switchdev_vxlan_addr_convert(const union vxlan_addr *vxlan_addr, 2539 enum mlxsw_sp_l3proto *proto, 2540 union mlxsw_sp_l3addr *addr) 2541 { 2542 if (vxlan_addr->sa.sa_family == AF_INET) { 2543 addr->addr4 = vxlan_addr->sin.sin_addr.s_addr; 2544 *proto = MLXSW_SP_L3_PROTO_IPV4; 2545 } else { 2546 addr->addr6 = vxlan_addr->sin6.sin6_addr; 2547 *proto = MLXSW_SP_L3_PROTO_IPV6; 2548 } 2549 } 2550 2551 static void 2552 mlxsw_sp_switchdev_addr_vxlan_convert(enum mlxsw_sp_l3proto proto, 2553 const union mlxsw_sp_l3addr *addr, 2554 union vxlan_addr *vxlan_addr) 2555 { 2556 switch (proto) { 2557 case MLXSW_SP_L3_PROTO_IPV4: 2558 vxlan_addr->sa.sa_family = AF_INET; 2559 vxlan_addr->sin.sin_addr.s_addr = addr->addr4; 2560 break; 2561 case MLXSW_SP_L3_PROTO_IPV6: 2562 vxlan_addr->sa.sa_family = AF_INET6; 2563 vxlan_addr->sin6.sin6_addr = addr->addr6; 2564 break; 2565 } 2566 } 2567 2568 static void mlxsw_sp_fdb_vxlan_call_notifiers(struct net_device *dev, 2569 const char *mac, 2570 enum mlxsw_sp_l3proto proto, 2571 union mlxsw_sp_l3addr *addr, 2572 __be32 vni, bool adding) 2573 { 2574 struct switchdev_notifier_vxlan_fdb_info info; 2575 struct vxlan_dev *vxlan = netdev_priv(dev); 2576 enum switchdev_notifier_type type; 2577 2578 type = adding ? SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE : 2579 SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE; 2580 mlxsw_sp_switchdev_addr_vxlan_convert(proto, addr, &info.remote_ip); 2581 info.remote_port = vxlan->cfg.dst_port; 2582 info.remote_vni = vni; 2583 info.remote_ifindex = 0; 2584 ether_addr_copy(info.eth_addr, mac); 2585 info.vni = vni; 2586 info.offloaded = adding; 2587 call_switchdev_notifiers(type, dev, &info.info, NULL); 2588 } 2589 2590 static void mlxsw_sp_fdb_nve_call_notifiers(struct net_device *dev, 2591 const char *mac, 2592 enum mlxsw_sp_l3proto proto, 2593 union mlxsw_sp_l3addr *addr, 2594 __be32 vni, 2595 bool adding) 2596 { 2597 if (netif_is_vxlan(dev)) 2598 mlxsw_sp_fdb_vxlan_call_notifiers(dev, mac, proto, addr, vni, 2599 adding); 2600 } 2601 2602 static void 2603 mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type, 2604 const char *mac, u16 vid, 2605 struct net_device *dev, bool offloaded) 2606 { 2607 struct switchdev_notifier_fdb_info info = {}; 2608 2609 info.addr = mac; 2610 info.vid = vid; 2611 info.offloaded = offloaded; 2612 call_switchdev_notifiers(type, dev, &info.info, NULL); 2613 } 2614 2615 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, 2616 char *sfn_pl, int rec_index, 2617 bool adding) 2618 { 2619 unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core); 2620 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2621 struct mlxsw_sp_bridge_device *bridge_device; 2622 struct mlxsw_sp_bridge_port *bridge_port; 2623 struct mlxsw_sp_port *mlxsw_sp_port; 2624 enum switchdev_notifier_type type; 2625 char mac[ETH_ALEN]; 2626 u16 local_port; 2627 u16 vid, fid; 2628 bool do_notification = true; 2629 int err; 2630 2631 mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port); 2632 2633 if (WARN_ON_ONCE(local_port >= max_ports)) 2634 return; 2635 mlxsw_sp_port = mlxsw_sp->ports[local_port]; 2636 if (!mlxsw_sp_port) { 2637 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n"); 2638 goto just_remove; 2639 } 2640 2641 if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid)) 2642 goto just_remove; 2643 2644 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); 2645 if (!mlxsw_sp_port_vlan) { 2646 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); 2647 goto just_remove; 2648 } 2649 2650 bridge_port = mlxsw_sp_port_vlan->bridge_port; 2651 if (!bridge_port) { 2652 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n"); 2653 goto just_remove; 2654 } 2655 2656 bridge_device = bridge_port->bridge_device; 2657 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0; 2658 2659 do_fdb_op: 2660 err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, 2661 adding, true); 2662 if (err) { 2663 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n"); 2664 return; 2665 } 2666 2667 if (!do_notification) 2668 return; 2669 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; 2670 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev, adding); 2671 2672 return; 2673 2674 just_remove: 2675 adding = false; 2676 do_notification = false; 2677 goto do_fdb_op; 2678 } 2679 2680 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, 2681 char *sfn_pl, int rec_index, 2682 bool adding) 2683 { 2684 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2685 struct mlxsw_sp_bridge_device *bridge_device; 2686 struct mlxsw_sp_bridge_port *bridge_port; 2687 struct mlxsw_sp_port *mlxsw_sp_port; 2688 enum switchdev_notifier_type type; 2689 char mac[ETH_ALEN]; 2690 u16 lag_vid = 0; 2691 u16 lag_id; 2692 u16 vid, fid; 2693 bool do_notification = true; 2694 int err; 2695 2696 mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id); 2697 mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id); 2698 if (!mlxsw_sp_port) { 2699 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n"); 2700 goto just_remove; 2701 } 2702 2703 if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid)) 2704 goto just_remove; 2705 2706 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); 2707 if (!mlxsw_sp_port_vlan) { 2708 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); 2709 goto just_remove; 2710 } 2711 2712 bridge_port = mlxsw_sp_port_vlan->bridge_port; 2713 if (!bridge_port) { 2714 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n"); 2715 goto just_remove; 2716 } 2717 2718 bridge_device = bridge_port->bridge_device; 2719 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0; 2720 lag_vid = mlxsw_sp_fid_lag_vid_valid(mlxsw_sp_port_vlan->fid) ? 2721 mlxsw_sp_port_vlan->vid : 0; 2722 2723 do_fdb_op: 2724 err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid, 2725 adding, true); 2726 if (err) { 2727 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n"); 2728 return; 2729 } 2730 2731 if (!do_notification) 2732 return; 2733 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; 2734 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev, adding); 2735 2736 return; 2737 2738 just_remove: 2739 adding = false; 2740 do_notification = false; 2741 goto do_fdb_op; 2742 } 2743 2744 static int 2745 __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp, 2746 const struct mlxsw_sp_fid *fid, 2747 bool adding, 2748 struct net_device **nve_dev, 2749 u16 *p_vid, __be32 *p_vni) 2750 { 2751 struct mlxsw_sp_bridge_device *bridge_device; 2752 struct net_device *br_dev, *dev; 2753 int nve_ifindex; 2754 int err; 2755 2756 err = mlxsw_sp_fid_nve_ifindex(fid, &nve_ifindex); 2757 if (err) 2758 return err; 2759 2760 err = mlxsw_sp_fid_vni(fid, p_vni); 2761 if (err) 2762 return err; 2763 2764 dev = __dev_get_by_index(mlxsw_sp_net(mlxsw_sp), nve_ifindex); 2765 if (!dev) 2766 return -EINVAL; 2767 *nve_dev = dev; 2768 2769 if (!netif_running(dev)) 2770 return -EINVAL; 2771 2772 if (adding && !br_port_flag_is_set(dev, BR_LEARNING)) 2773 return -EINVAL; 2774 2775 if (adding && netif_is_vxlan(dev)) { 2776 struct vxlan_dev *vxlan = netdev_priv(dev); 2777 2778 if (!(vxlan->cfg.flags & VXLAN_F_LEARN)) 2779 return -EINVAL; 2780 } 2781 2782 br_dev = netdev_master_upper_dev_get(dev); 2783 if (!br_dev) 2784 return -EINVAL; 2785 2786 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2787 if (!bridge_device) 2788 return -EINVAL; 2789 2790 *p_vid = bridge_device->ops->fid_vid(bridge_device, fid); 2791 2792 return 0; 2793 } 2794 2795 static void mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp, 2796 char *sfn_pl, 2797 int rec_index, 2798 bool adding) 2799 { 2800 enum mlxsw_reg_sfn_uc_tunnel_protocol sfn_proto; 2801 enum switchdev_notifier_type type; 2802 struct net_device *nve_dev; 2803 union mlxsw_sp_l3addr addr; 2804 struct mlxsw_sp_fid *fid; 2805 char mac[ETH_ALEN]; 2806 u16 fid_index, vid; 2807 __be32 vni; 2808 u32 uip; 2809 int err; 2810 2811 mlxsw_reg_sfn_uc_tunnel_unpack(sfn_pl, rec_index, mac, &fid_index, 2812 &uip, &sfn_proto); 2813 2814 fid = mlxsw_sp_fid_lookup_by_index(mlxsw_sp, fid_index); 2815 if (!fid) 2816 goto err_fid_lookup; 2817 2818 err = mlxsw_sp_nve_learned_ip_resolve(mlxsw_sp, uip, 2819 (enum mlxsw_sp_l3proto) sfn_proto, 2820 &addr); 2821 if (err) 2822 goto err_ip_resolve; 2823 2824 err = __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, fid, adding, 2825 &nve_dev, &vid, &vni); 2826 if (err) 2827 goto err_fdb_process; 2828 2829 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index, 2830 (enum mlxsw_sp_l3proto) sfn_proto, 2831 &addr, adding, true); 2832 if (err) 2833 goto err_fdb_op; 2834 2835 mlxsw_sp_fdb_nve_call_notifiers(nve_dev, mac, 2836 (enum mlxsw_sp_l3proto) sfn_proto, 2837 &addr, vni, adding); 2838 2839 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : 2840 SWITCHDEV_FDB_DEL_TO_BRIDGE; 2841 mlxsw_sp_fdb_call_notifiers(type, mac, vid, nve_dev, adding); 2842 2843 mlxsw_sp_fid_put(fid); 2844 2845 return; 2846 2847 err_fdb_op: 2848 err_fdb_process: 2849 err_ip_resolve: 2850 mlxsw_sp_fid_put(fid); 2851 err_fid_lookup: 2852 /* Remove an FDB entry in case we cannot process it. Otherwise the 2853 * device will keep sending the same notification over and over again. 2854 */ 2855 mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index, 2856 (enum mlxsw_sp_l3proto) sfn_proto, &addr, 2857 false, true); 2858 } 2859 2860 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, 2861 char *sfn_pl, int rec_index) 2862 { 2863 switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) { 2864 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC: 2865 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, 2866 rec_index, true); 2867 break; 2868 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC: 2869 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, 2870 rec_index, false); 2871 break; 2872 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG: 2873 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, 2874 rec_index, true); 2875 break; 2876 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG: 2877 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, 2878 rec_index, false); 2879 break; 2880 case MLXSW_REG_SFN_REC_TYPE_LEARNED_UNICAST_TUNNEL: 2881 mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl, 2882 rec_index, true); 2883 break; 2884 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_UNICAST_TUNNEL: 2885 mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl, 2886 rec_index, false); 2887 break; 2888 } 2889 } 2890 2891 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp, 2892 bool no_delay) 2893 { 2894 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; 2895 unsigned int interval = no_delay ? 0 : bridge->fdb_notify.interval; 2896 2897 mlxsw_core_schedule_dw(&bridge->fdb_notify.dw, 2898 msecs_to_jiffies(interval)); 2899 } 2900 2901 #define MLXSW_SP_FDB_SFN_QUERIES_PER_SESSION 10 2902 2903 static void mlxsw_sp_fdb_notify_work(struct work_struct *work) 2904 { 2905 struct mlxsw_sp_bridge *bridge; 2906 struct mlxsw_sp *mlxsw_sp; 2907 char *sfn_pl; 2908 int queries; 2909 u8 num_rec; 2910 int i; 2911 int err; 2912 2913 sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL); 2914 if (!sfn_pl) 2915 return; 2916 2917 bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work); 2918 mlxsw_sp = bridge->mlxsw_sp; 2919 2920 rtnl_lock(); 2921 queries = MLXSW_SP_FDB_SFN_QUERIES_PER_SESSION; 2922 while (queries > 0) { 2923 mlxsw_reg_sfn_pack(sfn_pl); 2924 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl); 2925 if (err) { 2926 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n"); 2927 goto out; 2928 } 2929 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl); 2930 for (i = 0; i < num_rec; i++) 2931 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i); 2932 if (num_rec != MLXSW_REG_SFN_REC_MAX_COUNT) 2933 goto out; 2934 queries--; 2935 } 2936 2937 out: 2938 rtnl_unlock(); 2939 kfree(sfn_pl); 2940 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp, !queries); 2941 } 2942 2943 struct mlxsw_sp_switchdev_event_work { 2944 struct work_struct work; 2945 union { 2946 struct switchdev_notifier_fdb_info fdb_info; 2947 struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info; 2948 }; 2949 struct net_device *dev; 2950 unsigned long event; 2951 }; 2952 2953 static void 2954 mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp, 2955 struct mlxsw_sp_switchdev_event_work * 2956 switchdev_work, 2957 struct mlxsw_sp_fid *fid, __be32 vni) 2958 { 2959 struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info; 2960 struct switchdev_notifier_fdb_info *fdb_info; 2961 struct net_device *dev = switchdev_work->dev; 2962 enum mlxsw_sp_l3proto proto; 2963 union mlxsw_sp_l3addr addr; 2964 int err; 2965 2966 fdb_info = &switchdev_work->fdb_info; 2967 err = vxlan_fdb_find_uc(dev, fdb_info->addr, vni, &vxlan_fdb_info); 2968 if (err) 2969 return; 2970 2971 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info.remote_ip, 2972 &proto, &addr); 2973 2974 switch (switchdev_work->event) { 2975 case SWITCHDEV_FDB_ADD_TO_DEVICE: 2976 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, 2977 vxlan_fdb_info.eth_addr, 2978 mlxsw_sp_fid_index(fid), 2979 proto, &addr, true, false); 2980 if (err) 2981 return; 2982 vxlan_fdb_info.offloaded = true; 2983 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 2984 &vxlan_fdb_info.info, NULL); 2985 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 2986 vxlan_fdb_info.eth_addr, 2987 fdb_info->vid, dev, true); 2988 break; 2989 case SWITCHDEV_FDB_DEL_TO_DEVICE: 2990 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, 2991 vxlan_fdb_info.eth_addr, 2992 mlxsw_sp_fid_index(fid), 2993 proto, &addr, false, 2994 false); 2995 vxlan_fdb_info.offloaded = false; 2996 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 2997 &vxlan_fdb_info.info, NULL); 2998 break; 2999 } 3000 } 3001 3002 static void 3003 mlxsw_sp_switchdev_bridge_nve_fdb_event(struct mlxsw_sp_switchdev_event_work * 3004 switchdev_work) 3005 { 3006 struct mlxsw_sp_bridge_device *bridge_device; 3007 struct net_device *dev = switchdev_work->dev; 3008 struct net_device *br_dev; 3009 struct mlxsw_sp *mlxsw_sp; 3010 struct mlxsw_sp_fid *fid; 3011 __be32 vni; 3012 int err; 3013 3014 if (switchdev_work->event != SWITCHDEV_FDB_ADD_TO_DEVICE && 3015 switchdev_work->event != SWITCHDEV_FDB_DEL_TO_DEVICE) 3016 return; 3017 3018 if (switchdev_work->event == SWITCHDEV_FDB_ADD_TO_DEVICE && 3019 (!switchdev_work->fdb_info.added_by_user || 3020 switchdev_work->fdb_info.is_local)) 3021 return; 3022 3023 if (!netif_running(dev)) 3024 return; 3025 br_dev = netdev_master_upper_dev_get(dev); 3026 if (!br_dev) 3027 return; 3028 if (!netif_is_bridge_master(br_dev)) 3029 return; 3030 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3031 if (!mlxsw_sp) 3032 return; 3033 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3034 if (!bridge_device) 3035 return; 3036 3037 fid = bridge_device->ops->fid_lookup(bridge_device, 3038 switchdev_work->fdb_info.vid); 3039 if (!fid) 3040 return; 3041 3042 err = mlxsw_sp_fid_vni(fid, &vni); 3043 if (err) 3044 goto out; 3045 3046 mlxsw_sp_switchdev_bridge_vxlan_fdb_event(mlxsw_sp, switchdev_work, fid, 3047 vni); 3048 3049 out: 3050 mlxsw_sp_fid_put(fid); 3051 } 3052 3053 static void mlxsw_sp_switchdev_bridge_fdb_event_work(struct work_struct *work) 3054 { 3055 struct mlxsw_sp_switchdev_event_work *switchdev_work = 3056 container_of(work, struct mlxsw_sp_switchdev_event_work, work); 3057 struct net_device *dev = switchdev_work->dev; 3058 struct switchdev_notifier_fdb_info *fdb_info; 3059 struct mlxsw_sp_port *mlxsw_sp_port; 3060 int err; 3061 3062 rtnl_lock(); 3063 if (netif_is_vxlan(dev)) { 3064 mlxsw_sp_switchdev_bridge_nve_fdb_event(switchdev_work); 3065 goto out; 3066 } 3067 3068 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev); 3069 if (!mlxsw_sp_port) 3070 goto out; 3071 3072 switch (switchdev_work->event) { 3073 case SWITCHDEV_FDB_ADD_TO_DEVICE: 3074 fdb_info = &switchdev_work->fdb_info; 3075 if (!fdb_info->added_by_user || fdb_info->is_local) 3076 break; 3077 err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true); 3078 if (err) 3079 break; 3080 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 3081 fdb_info->addr, 3082 fdb_info->vid, dev, true); 3083 break; 3084 case SWITCHDEV_FDB_DEL_TO_DEVICE: 3085 fdb_info = &switchdev_work->fdb_info; 3086 mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false); 3087 break; 3088 case SWITCHDEV_FDB_ADD_TO_BRIDGE: 3089 case SWITCHDEV_FDB_DEL_TO_BRIDGE: 3090 /* These events are only used to potentially update an existing 3091 * SPAN mirror. 3092 */ 3093 break; 3094 } 3095 3096 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 3097 3098 out: 3099 rtnl_unlock(); 3100 kfree(switchdev_work->fdb_info.addr); 3101 kfree(switchdev_work); 3102 dev_put(dev); 3103 } 3104 3105 static void 3106 mlxsw_sp_switchdev_vxlan_fdb_add(struct mlxsw_sp *mlxsw_sp, 3107 struct mlxsw_sp_switchdev_event_work * 3108 switchdev_work) 3109 { 3110 struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; 3111 struct mlxsw_sp_bridge_device *bridge_device; 3112 struct net_device *dev = switchdev_work->dev; 3113 u8 all_zeros_mac[ETH_ALEN] = { 0 }; 3114 enum mlxsw_sp_l3proto proto; 3115 union mlxsw_sp_l3addr addr; 3116 struct net_device *br_dev; 3117 struct mlxsw_sp_fid *fid; 3118 u16 vid; 3119 int err; 3120 3121 vxlan_fdb_info = &switchdev_work->vxlan_fdb_info; 3122 br_dev = netdev_master_upper_dev_get(dev); 3123 3124 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3125 if (!bridge_device) 3126 return; 3127 3128 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan_fdb_info->vni); 3129 if (!fid) 3130 return; 3131 3132 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info->remote_ip, 3133 &proto, &addr); 3134 3135 if (ether_addr_equal(vxlan_fdb_info->eth_addr, all_zeros_mac)) { 3136 err = mlxsw_sp_nve_flood_ip_add(mlxsw_sp, fid, proto, &addr); 3137 if (err) { 3138 mlxsw_sp_fid_put(fid); 3139 return; 3140 } 3141 vxlan_fdb_info->offloaded = true; 3142 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 3143 &vxlan_fdb_info->info, NULL); 3144 mlxsw_sp_fid_put(fid); 3145 return; 3146 } 3147 3148 /* The device has a single FDB table, whereas Linux has two - one 3149 * in the bridge driver and another in the VxLAN driver. We only 3150 * program an entry to the device if the MAC points to the VxLAN 3151 * device in the bridge's FDB table 3152 */ 3153 vid = bridge_device->ops->fid_vid(bridge_device, fid); 3154 if (br_fdb_find_port(br_dev, vxlan_fdb_info->eth_addr, vid) != dev) 3155 goto err_br_fdb_find; 3156 3157 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info->eth_addr, 3158 mlxsw_sp_fid_index(fid), proto, 3159 &addr, true, false); 3160 if (err) 3161 goto err_fdb_tunnel_uc_op; 3162 vxlan_fdb_info->offloaded = true; 3163 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 3164 &vxlan_fdb_info->info, NULL); 3165 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 3166 vxlan_fdb_info->eth_addr, vid, dev, true); 3167 3168 mlxsw_sp_fid_put(fid); 3169 3170 return; 3171 3172 err_fdb_tunnel_uc_op: 3173 err_br_fdb_find: 3174 mlxsw_sp_fid_put(fid); 3175 } 3176 3177 static void 3178 mlxsw_sp_switchdev_vxlan_fdb_del(struct mlxsw_sp *mlxsw_sp, 3179 struct mlxsw_sp_switchdev_event_work * 3180 switchdev_work) 3181 { 3182 struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; 3183 struct mlxsw_sp_bridge_device *bridge_device; 3184 struct net_device *dev = switchdev_work->dev; 3185 struct net_device *br_dev = netdev_master_upper_dev_get(dev); 3186 u8 all_zeros_mac[ETH_ALEN] = { 0 }; 3187 enum mlxsw_sp_l3proto proto; 3188 union mlxsw_sp_l3addr addr; 3189 struct mlxsw_sp_fid *fid; 3190 u16 vid; 3191 3192 vxlan_fdb_info = &switchdev_work->vxlan_fdb_info; 3193 3194 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3195 if (!bridge_device) 3196 return; 3197 3198 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan_fdb_info->vni); 3199 if (!fid) 3200 return; 3201 3202 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info->remote_ip, 3203 &proto, &addr); 3204 3205 if (ether_addr_equal(vxlan_fdb_info->eth_addr, all_zeros_mac)) { 3206 mlxsw_sp_nve_flood_ip_del(mlxsw_sp, fid, proto, &addr); 3207 mlxsw_sp_fid_put(fid); 3208 return; 3209 } 3210 3211 mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info->eth_addr, 3212 mlxsw_sp_fid_index(fid), proto, &addr, 3213 false, false); 3214 vid = bridge_device->ops->fid_vid(bridge_device, fid); 3215 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 3216 vxlan_fdb_info->eth_addr, vid, dev, false); 3217 3218 mlxsw_sp_fid_put(fid); 3219 } 3220 3221 static void mlxsw_sp_switchdev_vxlan_fdb_event_work(struct work_struct *work) 3222 { 3223 struct mlxsw_sp_switchdev_event_work *switchdev_work = 3224 container_of(work, struct mlxsw_sp_switchdev_event_work, work); 3225 struct net_device *dev = switchdev_work->dev; 3226 struct mlxsw_sp *mlxsw_sp; 3227 struct net_device *br_dev; 3228 3229 rtnl_lock(); 3230 3231 if (!netif_running(dev)) 3232 goto out; 3233 br_dev = netdev_master_upper_dev_get(dev); 3234 if (!br_dev) 3235 goto out; 3236 if (!netif_is_bridge_master(br_dev)) 3237 goto out; 3238 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3239 if (!mlxsw_sp) 3240 goto out; 3241 3242 switch (switchdev_work->event) { 3243 case SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE: 3244 mlxsw_sp_switchdev_vxlan_fdb_add(mlxsw_sp, switchdev_work); 3245 break; 3246 case SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE: 3247 mlxsw_sp_switchdev_vxlan_fdb_del(mlxsw_sp, switchdev_work); 3248 break; 3249 } 3250 3251 out: 3252 rtnl_unlock(); 3253 kfree(switchdev_work); 3254 dev_put(dev); 3255 } 3256 3257 static int 3258 mlxsw_sp_switchdev_vxlan_work_prepare(struct mlxsw_sp_switchdev_event_work * 3259 switchdev_work, 3260 struct switchdev_notifier_info *info) 3261 { 3262 struct vxlan_dev *vxlan = netdev_priv(switchdev_work->dev); 3263 struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; 3264 struct vxlan_config *cfg = &vxlan->cfg; 3265 struct netlink_ext_ack *extack; 3266 3267 extack = switchdev_notifier_info_to_extack(info); 3268 vxlan_fdb_info = container_of(info, 3269 struct switchdev_notifier_vxlan_fdb_info, 3270 info); 3271 3272 if (vxlan_fdb_info->remote_port != cfg->dst_port) { 3273 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default remote port is not supported"); 3274 return -EOPNOTSUPP; 3275 } 3276 if (vxlan_fdb_info->remote_vni != cfg->vni || 3277 vxlan_fdb_info->vni != cfg->vni) { 3278 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default VNI is not supported"); 3279 return -EOPNOTSUPP; 3280 } 3281 if (vxlan_fdb_info->remote_ifindex) { 3282 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Local interface is not supported"); 3283 return -EOPNOTSUPP; 3284 } 3285 if (is_multicast_ether_addr(vxlan_fdb_info->eth_addr)) { 3286 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast MAC addresses not supported"); 3287 return -EOPNOTSUPP; 3288 } 3289 if (vxlan_addr_multicast(&vxlan_fdb_info->remote_ip)) { 3290 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast destination IP is not supported"); 3291 return -EOPNOTSUPP; 3292 } 3293 3294 switchdev_work->vxlan_fdb_info = *vxlan_fdb_info; 3295 3296 return 0; 3297 } 3298 3299 /* Called under rcu_read_lock() */ 3300 static int mlxsw_sp_switchdev_event(struct notifier_block *unused, 3301 unsigned long event, void *ptr) 3302 { 3303 struct net_device *dev = switchdev_notifier_info_to_dev(ptr); 3304 struct mlxsw_sp_switchdev_event_work *switchdev_work; 3305 struct switchdev_notifier_fdb_info *fdb_info; 3306 struct switchdev_notifier_info *info = ptr; 3307 struct net_device *br_dev; 3308 int err; 3309 3310 if (event == SWITCHDEV_PORT_ATTR_SET) { 3311 err = switchdev_handle_port_attr_set(dev, ptr, 3312 mlxsw_sp_port_dev_check, 3313 mlxsw_sp_port_attr_set); 3314 return notifier_from_errno(err); 3315 } 3316 3317 /* Tunnel devices are not our uppers, so check their master instead */ 3318 br_dev = netdev_master_upper_dev_get_rcu(dev); 3319 if (!br_dev) 3320 return NOTIFY_DONE; 3321 if (!netif_is_bridge_master(br_dev)) 3322 return NOTIFY_DONE; 3323 if (!mlxsw_sp_port_dev_lower_find_rcu(br_dev)) 3324 return NOTIFY_DONE; 3325 3326 switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); 3327 if (!switchdev_work) 3328 return NOTIFY_BAD; 3329 3330 switchdev_work->dev = dev; 3331 switchdev_work->event = event; 3332 3333 switch (event) { 3334 case SWITCHDEV_FDB_ADD_TO_DEVICE: 3335 case SWITCHDEV_FDB_DEL_TO_DEVICE: 3336 case SWITCHDEV_FDB_ADD_TO_BRIDGE: 3337 case SWITCHDEV_FDB_DEL_TO_BRIDGE: 3338 fdb_info = container_of(info, 3339 struct switchdev_notifier_fdb_info, 3340 info); 3341 INIT_WORK(&switchdev_work->work, 3342 mlxsw_sp_switchdev_bridge_fdb_event_work); 3343 memcpy(&switchdev_work->fdb_info, ptr, 3344 sizeof(switchdev_work->fdb_info)); 3345 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); 3346 if (!switchdev_work->fdb_info.addr) 3347 goto err_addr_alloc; 3348 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, 3349 fdb_info->addr); 3350 /* Take a reference on the device. This can be either 3351 * upper device containig mlxsw_sp_port or just a 3352 * mlxsw_sp_port 3353 */ 3354 dev_hold(dev); 3355 break; 3356 case SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE: 3357 case SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE: 3358 INIT_WORK(&switchdev_work->work, 3359 mlxsw_sp_switchdev_vxlan_fdb_event_work); 3360 err = mlxsw_sp_switchdev_vxlan_work_prepare(switchdev_work, 3361 info); 3362 if (err) 3363 goto err_vxlan_work_prepare; 3364 dev_hold(dev); 3365 break; 3366 default: 3367 kfree(switchdev_work); 3368 return NOTIFY_DONE; 3369 } 3370 3371 mlxsw_core_schedule_work(&switchdev_work->work); 3372 3373 return NOTIFY_DONE; 3374 3375 err_vxlan_work_prepare: 3376 err_addr_alloc: 3377 kfree(switchdev_work); 3378 return NOTIFY_BAD; 3379 } 3380 3381 struct notifier_block mlxsw_sp_switchdev_notifier = { 3382 .notifier_call = mlxsw_sp_switchdev_event, 3383 }; 3384 3385 static int 3386 mlxsw_sp_switchdev_vxlan_vlan_add(struct mlxsw_sp *mlxsw_sp, 3387 struct mlxsw_sp_bridge_device *bridge_device, 3388 const struct net_device *vxlan_dev, u16 vid, 3389 bool flag_untagged, bool flag_pvid, 3390 struct netlink_ext_ack *extack) 3391 { 3392 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 3393 __be32 vni = vxlan->cfg.vni; 3394 struct mlxsw_sp_fid *fid; 3395 u16 old_vid; 3396 int err; 3397 3398 /* We cannot have the same VLAN as PVID and egress untagged on multiple 3399 * VxLAN devices. Note that we get this notification before the VLAN is 3400 * actually added to the bridge's database, so it is not possible for 3401 * the lookup function to return 'vxlan_dev' 3402 */ 3403 if (flag_untagged && flag_pvid && 3404 mlxsw_sp_bridge_8021q_vxlan_dev_find(bridge_device->dev, vid)) { 3405 NL_SET_ERR_MSG_MOD(extack, "VLAN already mapped to a different VNI"); 3406 return -EINVAL; 3407 } 3408 3409 if (!netif_running(vxlan_dev)) 3410 return 0; 3411 3412 /* First case: FID is not associated with this VNI, but the new VLAN 3413 * is both PVID and egress untagged. Need to enable NVE on the FID, if 3414 * it exists 3415 */ 3416 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni); 3417 if (!fid) { 3418 if (!flag_untagged || !flag_pvid) 3419 return 0; 3420 return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, 3421 vid, extack); 3422 } 3423 3424 /* Second case: FID is associated with the VNI and the VLAN associated 3425 * with the FID is the same as the notified VLAN. This means the flags 3426 * (PVID / egress untagged) were toggled and that NVE should be 3427 * disabled on the FID 3428 */ 3429 old_vid = mlxsw_sp_fid_8021q_vid(fid); 3430 if (vid == old_vid) { 3431 if (WARN_ON(flag_untagged && flag_pvid)) { 3432 mlxsw_sp_fid_put(fid); 3433 return -EINVAL; 3434 } 3435 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); 3436 mlxsw_sp_fid_put(fid); 3437 return 0; 3438 } 3439 3440 /* Third case: A new VLAN was configured on the VxLAN device, but this 3441 * VLAN is not PVID, so there is nothing to do. 3442 */ 3443 if (!flag_pvid) { 3444 mlxsw_sp_fid_put(fid); 3445 return 0; 3446 } 3447 3448 /* Fourth case: Thew new VLAN is PVID, which means the VLAN currently 3449 * mapped to the VNI should be unmapped 3450 */ 3451 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); 3452 mlxsw_sp_fid_put(fid); 3453 3454 /* Fifth case: The new VLAN is also egress untagged, which means the 3455 * VLAN needs to be mapped to the VNI 3456 */ 3457 if (!flag_untagged) 3458 return 0; 3459 3460 err = bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, vid, extack); 3461 if (err) 3462 goto err_vxlan_join; 3463 3464 return 0; 3465 3466 err_vxlan_join: 3467 bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, old_vid, NULL); 3468 return err; 3469 } 3470 3471 static void 3472 mlxsw_sp_switchdev_vxlan_vlan_del(struct mlxsw_sp *mlxsw_sp, 3473 struct mlxsw_sp_bridge_device *bridge_device, 3474 const struct net_device *vxlan_dev, u16 vid) 3475 { 3476 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 3477 __be32 vni = vxlan->cfg.vni; 3478 struct mlxsw_sp_fid *fid; 3479 3480 if (!netif_running(vxlan_dev)) 3481 return; 3482 3483 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni); 3484 if (!fid) 3485 return; 3486 3487 /* A different VLAN than the one mapped to the VNI is deleted */ 3488 if (mlxsw_sp_fid_8021q_vid(fid) != vid) 3489 goto out; 3490 3491 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); 3492 3493 out: 3494 mlxsw_sp_fid_put(fid); 3495 } 3496 3497 static int 3498 mlxsw_sp_switchdev_vxlan_vlans_add(struct net_device *vxlan_dev, 3499 struct switchdev_notifier_port_obj_info * 3500 port_obj_info) 3501 { 3502 struct switchdev_obj_port_vlan *vlan = 3503 SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj); 3504 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; 3505 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; 3506 struct mlxsw_sp_bridge_device *bridge_device; 3507 struct netlink_ext_ack *extack; 3508 struct mlxsw_sp *mlxsw_sp; 3509 struct net_device *br_dev; 3510 3511 extack = switchdev_notifier_info_to_extack(&port_obj_info->info); 3512 br_dev = netdev_master_upper_dev_get(vxlan_dev); 3513 if (!br_dev) 3514 return 0; 3515 3516 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3517 if (!mlxsw_sp) 3518 return 0; 3519 3520 port_obj_info->handled = true; 3521 3522 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3523 if (!bridge_device) 3524 return -EINVAL; 3525 3526 if (!bridge_device->vlan_enabled) 3527 return 0; 3528 3529 return mlxsw_sp_switchdev_vxlan_vlan_add(mlxsw_sp, bridge_device, 3530 vxlan_dev, vlan->vid, 3531 flag_untagged, 3532 flag_pvid, extack); 3533 } 3534 3535 static void 3536 mlxsw_sp_switchdev_vxlan_vlans_del(struct net_device *vxlan_dev, 3537 struct switchdev_notifier_port_obj_info * 3538 port_obj_info) 3539 { 3540 struct switchdev_obj_port_vlan *vlan = 3541 SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj); 3542 struct mlxsw_sp_bridge_device *bridge_device; 3543 struct mlxsw_sp *mlxsw_sp; 3544 struct net_device *br_dev; 3545 3546 br_dev = netdev_master_upper_dev_get(vxlan_dev); 3547 if (!br_dev) 3548 return; 3549 3550 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3551 if (!mlxsw_sp) 3552 return; 3553 3554 port_obj_info->handled = true; 3555 3556 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3557 if (!bridge_device) 3558 return; 3559 3560 if (!bridge_device->vlan_enabled) 3561 return; 3562 3563 mlxsw_sp_switchdev_vxlan_vlan_del(mlxsw_sp, bridge_device, vxlan_dev, 3564 vlan->vid); 3565 } 3566 3567 static int 3568 mlxsw_sp_switchdev_handle_vxlan_obj_add(struct net_device *vxlan_dev, 3569 struct switchdev_notifier_port_obj_info * 3570 port_obj_info) 3571 { 3572 int err = 0; 3573 3574 switch (port_obj_info->obj->id) { 3575 case SWITCHDEV_OBJ_ID_PORT_VLAN: 3576 err = mlxsw_sp_switchdev_vxlan_vlans_add(vxlan_dev, 3577 port_obj_info); 3578 break; 3579 default: 3580 break; 3581 } 3582 3583 return err; 3584 } 3585 3586 static void 3587 mlxsw_sp_switchdev_handle_vxlan_obj_del(struct net_device *vxlan_dev, 3588 struct switchdev_notifier_port_obj_info * 3589 port_obj_info) 3590 { 3591 switch (port_obj_info->obj->id) { 3592 case SWITCHDEV_OBJ_ID_PORT_VLAN: 3593 mlxsw_sp_switchdev_vxlan_vlans_del(vxlan_dev, port_obj_info); 3594 break; 3595 default: 3596 break; 3597 } 3598 } 3599 3600 static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused, 3601 unsigned long event, void *ptr) 3602 { 3603 struct net_device *dev = switchdev_notifier_info_to_dev(ptr); 3604 int err = 0; 3605 3606 switch (event) { 3607 case SWITCHDEV_PORT_OBJ_ADD: 3608 if (netif_is_vxlan(dev)) 3609 err = mlxsw_sp_switchdev_handle_vxlan_obj_add(dev, ptr); 3610 else 3611 err = switchdev_handle_port_obj_add(dev, ptr, 3612 mlxsw_sp_port_dev_check, 3613 mlxsw_sp_port_obj_add); 3614 return notifier_from_errno(err); 3615 case SWITCHDEV_PORT_OBJ_DEL: 3616 if (netif_is_vxlan(dev)) 3617 mlxsw_sp_switchdev_handle_vxlan_obj_del(dev, ptr); 3618 else 3619 err = switchdev_handle_port_obj_del(dev, ptr, 3620 mlxsw_sp_port_dev_check, 3621 mlxsw_sp_port_obj_del); 3622 return notifier_from_errno(err); 3623 case SWITCHDEV_PORT_ATTR_SET: 3624 err = switchdev_handle_port_attr_set(dev, ptr, 3625 mlxsw_sp_port_dev_check, 3626 mlxsw_sp_port_attr_set); 3627 return notifier_from_errno(err); 3628 } 3629 3630 return NOTIFY_DONE; 3631 } 3632 3633 static struct notifier_block mlxsw_sp_switchdev_blocking_notifier = { 3634 .notifier_call = mlxsw_sp_switchdev_blocking_event, 3635 }; 3636 3637 u8 3638 mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port) 3639 { 3640 return bridge_port->stp_state; 3641 } 3642 3643 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp) 3644 { 3645 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; 3646 struct notifier_block *nb; 3647 int err; 3648 3649 err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME); 3650 if (err) { 3651 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n"); 3652 return err; 3653 } 3654 3655 err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier); 3656 if (err) { 3657 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n"); 3658 return err; 3659 } 3660 3661 nb = &mlxsw_sp_switchdev_blocking_notifier; 3662 err = register_switchdev_blocking_notifier(nb); 3663 if (err) { 3664 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev blocking notifier\n"); 3665 goto err_register_switchdev_blocking_notifier; 3666 } 3667 3668 INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work); 3669 bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL; 3670 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp, false); 3671 return 0; 3672 3673 err_register_switchdev_blocking_notifier: 3674 unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); 3675 return err; 3676 } 3677 3678 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp) 3679 { 3680 struct notifier_block *nb; 3681 3682 cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw); 3683 3684 nb = &mlxsw_sp_switchdev_blocking_notifier; 3685 unregister_switchdev_blocking_notifier(nb); 3686 3687 unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); 3688 } 3689 3690 static void mlxsw_sp1_switchdev_init(struct mlxsw_sp *mlxsw_sp) 3691 { 3692 mlxsw_sp->bridge->bridge_8021ad_ops = &mlxsw_sp1_bridge_8021ad_ops; 3693 } 3694 3695 const struct mlxsw_sp_switchdev_ops mlxsw_sp1_switchdev_ops = { 3696 .init = mlxsw_sp1_switchdev_init, 3697 }; 3698 3699 static void mlxsw_sp2_switchdev_init(struct mlxsw_sp *mlxsw_sp) 3700 { 3701 mlxsw_sp->bridge->bridge_8021ad_ops = &mlxsw_sp2_bridge_8021ad_ops; 3702 } 3703 3704 const struct mlxsw_sp_switchdev_ops mlxsw_sp2_switchdev_ops = { 3705 .init = mlxsw_sp2_switchdev_init, 3706 }; 3707 3708 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp) 3709 { 3710 struct mlxsw_sp_bridge *bridge; 3711 3712 bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL); 3713 if (!bridge) 3714 return -ENOMEM; 3715 mlxsw_sp->bridge = bridge; 3716 bridge->mlxsw_sp = mlxsw_sp; 3717 3718 INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list); 3719 3720 bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops; 3721 bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops; 3722 3723 mlxsw_sp->switchdev_ops->init(mlxsw_sp); 3724 3725 return mlxsw_sp_fdb_init(mlxsw_sp); 3726 } 3727 3728 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp) 3729 { 3730 mlxsw_sp_fdb_fini(mlxsw_sp); 3731 WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list)); 3732 kfree(mlxsw_sp->bridge); 3733 } 3734 3735