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 *smid_pl; 869 int err; 870 871 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL); 872 if (!smid_pl) 873 return -ENOMEM; 874 875 mlxsw_reg_smid_pack(smid_pl, mid_idx, 876 mlxsw_sp_router_port(mlxsw_sp), add); 877 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); 878 kfree(smid_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 u8 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 u8 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 mlxsw_sp_port_fdb_tunnel_uc_op(struct mlxsw_sp *mlxsw_sp, 1294 const char *mac, u16 fid, 1295 enum mlxsw_sp_l3proto proto, 1296 const union mlxsw_sp_l3addr *addr, 1297 bool adding, bool dynamic) 1298 { 1299 enum mlxsw_reg_sfd_uc_tunnel_protocol sfd_proto; 1300 char *sfd_pl; 1301 u8 num_rec; 1302 u32 uip; 1303 int err; 1304 1305 switch (proto) { 1306 case MLXSW_SP_L3_PROTO_IPV4: 1307 uip = be32_to_cpu(addr->addr4); 1308 sfd_proto = MLXSW_REG_SFD_UC_TUNNEL_PROTOCOL_IPV4; 1309 break; 1310 case MLXSW_SP_L3_PROTO_IPV6: 1311 default: 1312 WARN_ON(1); 1313 return -EOPNOTSUPP; 1314 } 1315 1316 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1317 if (!sfd_pl) 1318 return -ENOMEM; 1319 1320 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1321 mlxsw_reg_sfd_uc_tunnel_pack(sfd_pl, 0, 1322 mlxsw_sp_sfd_rec_policy(dynamic), mac, fid, 1323 MLXSW_REG_SFD_REC_ACTION_NOP, uip, 1324 sfd_proto); 1325 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1326 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1327 if (err) 1328 goto out; 1329 1330 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1331 err = -EBUSY; 1332 1333 out: 1334 kfree(sfd_pl); 1335 return err; 1336 } 1337 1338 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port, 1339 const char *mac, u16 fid, bool adding, 1340 enum mlxsw_reg_sfd_rec_action action, 1341 enum mlxsw_reg_sfd_rec_policy policy) 1342 { 1343 char *sfd_pl; 1344 u8 num_rec; 1345 int err; 1346 1347 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1348 if (!sfd_pl) 1349 return -ENOMEM; 1350 1351 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1352 mlxsw_reg_sfd_uc_pack(sfd_pl, 0, policy, mac, fid, action, local_port); 1353 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1354 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1355 if (err) 1356 goto out; 1357 1358 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1359 err = -EBUSY; 1360 1361 out: 1362 kfree(sfd_pl); 1363 return err; 1364 } 1365 1366 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port, 1367 const char *mac, u16 fid, bool adding, 1368 bool dynamic) 1369 { 1370 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding, 1371 MLXSW_REG_SFD_REC_ACTION_NOP, 1372 mlxsw_sp_sfd_rec_policy(dynamic)); 1373 } 1374 1375 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid, 1376 bool adding) 1377 { 1378 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding, 1379 MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER, 1380 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY); 1381 } 1382 1383 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id, 1384 const char *mac, u16 fid, u16 lag_vid, 1385 bool adding, bool dynamic) 1386 { 1387 char *sfd_pl; 1388 u8 num_rec; 1389 int err; 1390 1391 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1392 if (!sfd_pl) 1393 return -ENOMEM; 1394 1395 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1396 mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic), 1397 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP, 1398 lag_vid, lag_id); 1399 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1400 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1401 if (err) 1402 goto out; 1403 1404 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1405 err = -EBUSY; 1406 1407 out: 1408 kfree(sfd_pl); 1409 return err; 1410 } 1411 1412 static int 1413 mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port, 1414 struct switchdev_notifier_fdb_info *fdb_info, bool adding) 1415 { 1416 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1417 struct net_device *orig_dev = fdb_info->info.dev; 1418 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1419 struct mlxsw_sp_bridge_device *bridge_device; 1420 struct mlxsw_sp_bridge_port *bridge_port; 1421 u16 fid_index, vid; 1422 1423 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1424 if (!bridge_port) 1425 return -EINVAL; 1426 1427 bridge_device = bridge_port->bridge_device; 1428 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, 1429 bridge_device, 1430 fdb_info->vid); 1431 if (!mlxsw_sp_port_vlan) 1432 return 0; 1433 1434 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); 1435 vid = mlxsw_sp_port_vlan->vid; 1436 1437 if (!bridge_port->lagged) 1438 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 1439 bridge_port->system_port, 1440 fdb_info->addr, fid_index, 1441 adding, false); 1442 else 1443 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, 1444 bridge_port->lag_id, 1445 fdb_info->addr, fid_index, 1446 vid, adding, false); 1447 } 1448 1449 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr, 1450 u16 fid, u16 mid_idx, bool adding) 1451 { 1452 char *sfd_pl; 1453 u8 num_rec; 1454 int err; 1455 1456 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL); 1457 if (!sfd_pl) 1458 return -ENOMEM; 1459 1460 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0); 1461 mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid, 1462 MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx); 1463 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl); 1464 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl); 1465 if (err) 1466 goto out; 1467 1468 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl)) 1469 err = -EBUSY; 1470 1471 out: 1472 kfree(sfd_pl); 1473 return err; 1474 } 1475 1476 static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx, 1477 long *ports_bitmap, 1478 bool set_router_port) 1479 { 1480 char *smid_pl; 1481 int err, i; 1482 1483 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL); 1484 if (!smid_pl) 1485 return -ENOMEM; 1486 1487 mlxsw_reg_smid_pack(smid_pl, mid_idx, 0, false); 1488 for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) { 1489 if (mlxsw_sp->ports[i]) 1490 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1); 1491 } 1492 1493 mlxsw_reg_smid_port_mask_set(smid_pl, 1494 mlxsw_sp_router_port(mlxsw_sp), 1); 1495 1496 for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core)) 1497 mlxsw_reg_smid_port_set(smid_pl, i, 1); 1498 1499 mlxsw_reg_smid_port_set(smid_pl, mlxsw_sp_router_port(mlxsw_sp), 1500 set_router_port); 1501 1502 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); 1503 kfree(smid_pl); 1504 return err; 1505 } 1506 1507 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, 1508 u16 mid_idx, bool add) 1509 { 1510 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1511 char *smid_pl; 1512 int err; 1513 1514 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL); 1515 if (!smid_pl) 1516 return -ENOMEM; 1517 1518 mlxsw_reg_smid_pack(smid_pl, mid_idx, mlxsw_sp_port->local_port, add); 1519 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl); 1520 kfree(smid_pl); 1521 return err; 1522 } 1523 1524 static struct 1525 mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp_bridge_device *bridge_device, 1526 const unsigned char *addr, 1527 u16 fid) 1528 { 1529 struct mlxsw_sp_mid *mid; 1530 1531 list_for_each_entry(mid, &bridge_device->mids_list, list) { 1532 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid) 1533 return mid; 1534 } 1535 return NULL; 1536 } 1537 1538 static void 1539 mlxsw_sp_bridge_port_get_ports_bitmap(struct mlxsw_sp *mlxsw_sp, 1540 struct mlxsw_sp_bridge_port *bridge_port, 1541 unsigned long *ports_bitmap) 1542 { 1543 struct mlxsw_sp_port *mlxsw_sp_port; 1544 u64 max_lag_members, i; 1545 int lag_id; 1546 1547 if (!bridge_port->lagged) { 1548 set_bit(bridge_port->system_port, ports_bitmap); 1549 } else { 1550 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, 1551 MAX_LAG_MEMBERS); 1552 lag_id = bridge_port->lag_id; 1553 for (i = 0; i < max_lag_members; i++) { 1554 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, 1555 lag_id, i); 1556 if (mlxsw_sp_port) 1557 set_bit(mlxsw_sp_port->local_port, 1558 ports_bitmap); 1559 } 1560 } 1561 } 1562 1563 static void 1564 mlxsw_sp_mc_get_mrouters_bitmap(unsigned long *flood_bitmap, 1565 struct mlxsw_sp_bridge_device *bridge_device, 1566 struct mlxsw_sp *mlxsw_sp) 1567 { 1568 struct mlxsw_sp_bridge_port *bridge_port; 1569 1570 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) { 1571 if (bridge_port->mrouter) { 1572 mlxsw_sp_bridge_port_get_ports_bitmap(mlxsw_sp, 1573 bridge_port, 1574 flood_bitmap); 1575 } 1576 } 1577 } 1578 1579 static bool 1580 mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp, 1581 struct mlxsw_sp_mid *mid, 1582 struct mlxsw_sp_bridge_device *bridge_device) 1583 { 1584 long *flood_bitmap; 1585 int num_of_ports; 1586 u16 mid_idx; 1587 int err; 1588 1589 mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap, 1590 MLXSW_SP_MID_MAX); 1591 if (mid_idx == MLXSW_SP_MID_MAX) 1592 return false; 1593 1594 num_of_ports = mlxsw_core_max_ports(mlxsw_sp->core); 1595 flood_bitmap = bitmap_alloc(num_of_ports, GFP_KERNEL); 1596 if (!flood_bitmap) 1597 return false; 1598 1599 bitmap_copy(flood_bitmap, mid->ports_in_mid, num_of_ports); 1600 mlxsw_sp_mc_get_mrouters_bitmap(flood_bitmap, bridge_device, mlxsw_sp); 1601 1602 mid->mid = mid_idx; 1603 err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx, flood_bitmap, 1604 bridge_device->mrouter); 1605 bitmap_free(flood_bitmap); 1606 if (err) 1607 return false; 1608 1609 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid_idx, 1610 true); 1611 if (err) 1612 return false; 1613 1614 set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap); 1615 mid->in_hw = true; 1616 return true; 1617 } 1618 1619 static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp, 1620 struct mlxsw_sp_mid *mid) 1621 { 1622 if (!mid->in_hw) 1623 return 0; 1624 1625 clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap); 1626 mid->in_hw = false; 1627 return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid, 1628 false); 1629 } 1630 1631 static struct 1632 mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp, 1633 struct mlxsw_sp_bridge_device *bridge_device, 1634 const unsigned char *addr, 1635 u16 fid) 1636 { 1637 struct mlxsw_sp_mid *mid; 1638 1639 mid = kzalloc(sizeof(*mid), GFP_KERNEL); 1640 if (!mid) 1641 return NULL; 1642 1643 mid->ports_in_mid = bitmap_zalloc(mlxsw_core_max_ports(mlxsw_sp->core), 1644 GFP_KERNEL); 1645 if (!mid->ports_in_mid) 1646 goto err_ports_in_mid_alloc; 1647 1648 ether_addr_copy(mid->addr, addr); 1649 mid->fid = fid; 1650 mid->in_hw = false; 1651 1652 if (!bridge_device->multicast_enabled) 1653 goto out; 1654 1655 if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device)) 1656 goto err_write_mdb_entry; 1657 1658 out: 1659 list_add_tail(&mid->list, &bridge_device->mids_list); 1660 return mid; 1661 1662 err_write_mdb_entry: 1663 bitmap_free(mid->ports_in_mid); 1664 err_ports_in_mid_alloc: 1665 kfree(mid); 1666 return NULL; 1667 } 1668 1669 static int mlxsw_sp_port_remove_from_mid(struct mlxsw_sp_port *mlxsw_sp_port, 1670 struct mlxsw_sp_mid *mid) 1671 { 1672 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1673 int err = 0; 1674 1675 clear_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); 1676 if (bitmap_empty(mid->ports_in_mid, 1677 mlxsw_core_max_ports(mlxsw_sp->core))) { 1678 err = mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid); 1679 list_del(&mid->list); 1680 bitmap_free(mid->ports_in_mid); 1681 kfree(mid); 1682 } 1683 return err; 1684 } 1685 1686 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port, 1687 const struct switchdev_obj_port_mdb *mdb) 1688 { 1689 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1690 struct net_device *orig_dev = mdb->obj.orig_dev; 1691 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1692 struct net_device *dev = mlxsw_sp_port->dev; 1693 struct mlxsw_sp_bridge_device *bridge_device; 1694 struct mlxsw_sp_bridge_port *bridge_port; 1695 struct mlxsw_sp_mid *mid; 1696 u16 fid_index; 1697 int err = 0; 1698 1699 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1700 if (!bridge_port) 1701 return 0; 1702 1703 bridge_device = bridge_port->bridge_device; 1704 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, 1705 bridge_device, 1706 mdb->vid); 1707 if (!mlxsw_sp_port_vlan) 1708 return 0; 1709 1710 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); 1711 1712 mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index); 1713 if (!mid) { 1714 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, bridge_device, mdb->addr, 1715 fid_index); 1716 if (!mid) { 1717 netdev_err(dev, "Unable to allocate MC group\n"); 1718 return -ENOMEM; 1719 } 1720 } 1721 set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid); 1722 1723 if (!bridge_device->multicast_enabled) 1724 return 0; 1725 1726 if (bridge_port->mrouter) 1727 return 0; 1728 1729 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true); 1730 if (err) { 1731 netdev_err(dev, "Unable to set SMID\n"); 1732 goto err_out; 1733 } 1734 1735 return 0; 1736 1737 err_out: 1738 mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); 1739 return err; 1740 } 1741 1742 static void 1743 mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port, 1744 struct mlxsw_sp_bridge_device 1745 *bridge_device) 1746 { 1747 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1748 struct mlxsw_sp_mid *mid; 1749 bool mc_enabled; 1750 1751 mc_enabled = bridge_device->multicast_enabled; 1752 1753 list_for_each_entry(mid, &bridge_device->mids_list, list) { 1754 if (mc_enabled) 1755 mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, 1756 bridge_device); 1757 else 1758 mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid); 1759 } 1760 } 1761 1762 static void 1763 mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port, 1764 struct mlxsw_sp_bridge_port *bridge_port, 1765 bool add) 1766 { 1767 struct mlxsw_sp_bridge_device *bridge_device; 1768 struct mlxsw_sp_mid *mid; 1769 1770 bridge_device = bridge_port->bridge_device; 1771 1772 list_for_each_entry(mid, &bridge_device->mids_list, list) { 1773 if (!test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) 1774 mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, add); 1775 } 1776 } 1777 1778 static int mlxsw_sp_port_obj_add(struct net_device *dev, const void *ctx, 1779 const struct switchdev_obj *obj, 1780 struct netlink_ext_ack *extack) 1781 { 1782 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1783 const struct switchdev_obj_port_vlan *vlan; 1784 int err = 0; 1785 1786 switch (obj->id) { 1787 case SWITCHDEV_OBJ_ID_PORT_VLAN: 1788 vlan = SWITCHDEV_OBJ_PORT_VLAN(obj); 1789 1790 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, extack); 1791 1792 /* The event is emitted before the changes are actually 1793 * applied to the bridge. Therefore schedule the respin 1794 * call for later, so that the respin logic sees the 1795 * updated bridge state. 1796 */ 1797 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 1798 break; 1799 case SWITCHDEV_OBJ_ID_PORT_MDB: 1800 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port, 1801 SWITCHDEV_OBJ_PORT_MDB(obj)); 1802 break; 1803 default: 1804 err = -EOPNOTSUPP; 1805 break; 1806 } 1807 1808 return err; 1809 } 1810 1811 static void 1812 mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port, 1813 struct mlxsw_sp_bridge_port *bridge_port, u16 vid) 1814 { 1815 u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : mlxsw_sp_port->pvid; 1816 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1817 u16 proto; 1818 1819 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 1820 if (WARN_ON(!mlxsw_sp_port_vlan)) 1821 return; 1822 1823 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); 1824 br_vlan_get_proto(bridge_port->bridge_device->dev, &proto); 1825 mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid, proto); 1826 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false); 1827 mlxsw_sp_port_vlan_destroy(mlxsw_sp_port_vlan); 1828 } 1829 1830 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port, 1831 const struct switchdev_obj_port_vlan *vlan) 1832 { 1833 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1834 struct net_device *orig_dev = vlan->obj.orig_dev; 1835 struct mlxsw_sp_bridge_port *bridge_port; 1836 1837 if (netif_is_bridge_master(orig_dev)) 1838 return -EOPNOTSUPP; 1839 1840 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1841 if (WARN_ON(!bridge_port)) 1842 return -EINVAL; 1843 1844 if (!bridge_port->bridge_device->vlan_enabled) 1845 return 0; 1846 1847 mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vlan->vid); 1848 1849 return 0; 1850 } 1851 1852 static int 1853 __mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, 1854 struct mlxsw_sp_bridge_port *bridge_port, 1855 struct mlxsw_sp_mid *mid) 1856 { 1857 struct net_device *dev = mlxsw_sp_port->dev; 1858 int err; 1859 1860 if (bridge_port->bridge_device->multicast_enabled && 1861 !bridge_port->mrouter) { 1862 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); 1863 if (err) 1864 netdev_err(dev, "Unable to remove port from SMID\n"); 1865 } 1866 1867 err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid); 1868 if (err) 1869 netdev_err(dev, "Unable to remove MC SFD\n"); 1870 1871 return err; 1872 } 1873 1874 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port, 1875 const struct switchdev_obj_port_mdb *mdb) 1876 { 1877 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 1878 struct net_device *orig_dev = mdb->obj.orig_dev; 1879 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 1880 struct mlxsw_sp_bridge_device *bridge_device; 1881 struct net_device *dev = mlxsw_sp_port->dev; 1882 struct mlxsw_sp_bridge_port *bridge_port; 1883 struct mlxsw_sp_mid *mid; 1884 u16 fid_index; 1885 1886 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev); 1887 if (!bridge_port) 1888 return 0; 1889 1890 bridge_device = bridge_port->bridge_device; 1891 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port, 1892 bridge_device, 1893 mdb->vid); 1894 if (!mlxsw_sp_port_vlan) 1895 return 0; 1896 1897 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid); 1898 1899 mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index); 1900 if (!mid) { 1901 netdev_err(dev, "Unable to remove port from MC DB\n"); 1902 return -EINVAL; 1903 } 1904 1905 return __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid); 1906 } 1907 1908 static void 1909 mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, 1910 struct mlxsw_sp_bridge_port *bridge_port) 1911 { 1912 struct mlxsw_sp_bridge_device *bridge_device; 1913 struct mlxsw_sp_mid *mid, *tmp; 1914 1915 bridge_device = bridge_port->bridge_device; 1916 1917 list_for_each_entry_safe(mid, tmp, &bridge_device->mids_list, list) { 1918 if (test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) { 1919 __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, 1920 mid); 1921 } else if (bridge_device->multicast_enabled && 1922 bridge_port->mrouter) { 1923 mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false); 1924 } 1925 } 1926 } 1927 1928 static int mlxsw_sp_port_obj_del(struct net_device *dev, const void *ctx, 1929 const struct switchdev_obj *obj) 1930 { 1931 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); 1932 int err = 0; 1933 1934 switch (obj->id) { 1935 case SWITCHDEV_OBJ_ID_PORT_VLAN: 1936 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port, 1937 SWITCHDEV_OBJ_PORT_VLAN(obj)); 1938 break; 1939 case SWITCHDEV_OBJ_ID_PORT_MDB: 1940 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port, 1941 SWITCHDEV_OBJ_PORT_MDB(obj)); 1942 break; 1943 default: 1944 err = -EOPNOTSUPP; 1945 break; 1946 } 1947 1948 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 1949 1950 return err; 1951 } 1952 1953 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp, 1954 u16 lag_id) 1955 { 1956 struct mlxsw_sp_port *mlxsw_sp_port; 1957 u64 max_lag_members; 1958 int i; 1959 1960 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, 1961 MAX_LAG_MEMBERS); 1962 for (i = 0; i < max_lag_members; i++) { 1963 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); 1964 if (mlxsw_sp_port) 1965 return mlxsw_sp_port; 1966 } 1967 return NULL; 1968 } 1969 1970 static int 1971 mlxsw_sp_bridge_vlan_aware_port_join(struct mlxsw_sp_bridge_port *bridge_port, 1972 struct mlxsw_sp_port *mlxsw_sp_port, 1973 struct netlink_ext_ack *extack) 1974 { 1975 if (is_vlan_dev(bridge_port->dev)) { 1976 NL_SET_ERR_MSG_MOD(extack, "Can not enslave a VLAN device to a VLAN-aware bridge"); 1977 return -EINVAL; 1978 } 1979 1980 /* Port is no longer usable as a router interface */ 1981 if (mlxsw_sp_port->default_vlan->fid) 1982 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port->default_vlan); 1983 1984 return 0; 1985 } 1986 1987 static int 1988 mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device, 1989 struct mlxsw_sp_bridge_port *bridge_port, 1990 struct mlxsw_sp_port *mlxsw_sp_port, 1991 struct netlink_ext_ack *extack) 1992 { 1993 return mlxsw_sp_bridge_vlan_aware_port_join(bridge_port, mlxsw_sp_port, 1994 extack); 1995 } 1996 1997 static void 1998 mlxsw_sp_bridge_vlan_aware_port_leave(struct mlxsw_sp_port *mlxsw_sp_port) 1999 { 2000 /* Make sure untagged frames are allowed to ingress */ 2001 mlxsw_sp_port_pvid_set(mlxsw_sp_port, MLXSW_SP_DEFAULT_VID, 2002 ETH_P_8021Q); 2003 } 2004 2005 static void 2006 mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2007 struct mlxsw_sp_bridge_port *bridge_port, 2008 struct mlxsw_sp_port *mlxsw_sp_port) 2009 { 2010 mlxsw_sp_bridge_vlan_aware_port_leave(mlxsw_sp_port); 2011 } 2012 2013 static int 2014 mlxsw_sp_bridge_vlan_aware_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2015 const struct net_device *vxlan_dev, 2016 u16 vid, u16 ethertype, 2017 struct netlink_ext_ack *extack) 2018 { 2019 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2020 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 2021 struct mlxsw_sp_nve_params params = { 2022 .type = MLXSW_SP_NVE_TYPE_VXLAN, 2023 .vni = vxlan->cfg.vni, 2024 .dev = vxlan_dev, 2025 .ethertype = ethertype, 2026 }; 2027 struct mlxsw_sp_fid *fid; 2028 int err; 2029 2030 /* If the VLAN is 0, we need to find the VLAN that is configured as 2031 * PVID and egress untagged on the bridge port of the VxLAN device. 2032 * It is possible no such VLAN exists 2033 */ 2034 if (!vid) { 2035 err = mlxsw_sp_vxlan_mapped_vid(vxlan_dev, &vid); 2036 if (err || !vid) 2037 return err; 2038 } 2039 2040 fid = mlxsw_sp_fid_8021q_get(mlxsw_sp, vid); 2041 if (IS_ERR(fid)) { 2042 NL_SET_ERR_MSG_MOD(extack, "Failed to create 802.1Q FID"); 2043 return PTR_ERR(fid); 2044 } 2045 2046 if (mlxsw_sp_fid_vni_is_set(fid)) { 2047 NL_SET_ERR_MSG_MOD(extack, "VNI is already set on FID"); 2048 err = -EINVAL; 2049 goto err_vni_exists; 2050 } 2051 2052 err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, ¶ms, extack); 2053 if (err) 2054 goto err_nve_fid_enable; 2055 2056 return 0; 2057 2058 err_nve_fid_enable: 2059 err_vni_exists: 2060 mlxsw_sp_fid_put(fid); 2061 return err; 2062 } 2063 2064 static int 2065 mlxsw_sp_bridge_8021q_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2066 const struct net_device *vxlan_dev, u16 vid, 2067 struct netlink_ext_ack *extack) 2068 { 2069 return mlxsw_sp_bridge_vlan_aware_vxlan_join(bridge_device, vxlan_dev, 2070 vid, ETH_P_8021Q, extack); 2071 } 2072 2073 static struct net_device * 2074 mlxsw_sp_bridge_8021q_vxlan_dev_find(struct net_device *br_dev, u16 vid) 2075 { 2076 struct net_device *dev; 2077 struct list_head *iter; 2078 2079 netdev_for_each_lower_dev(br_dev, dev, iter) { 2080 u16 pvid; 2081 int err; 2082 2083 if (!netif_is_vxlan(dev)) 2084 continue; 2085 2086 err = mlxsw_sp_vxlan_mapped_vid(dev, &pvid); 2087 if (err || pvid != vid) 2088 continue; 2089 2090 return dev; 2091 } 2092 2093 return NULL; 2094 } 2095 2096 static struct mlxsw_sp_fid * 2097 mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device, 2098 u16 vid, struct netlink_ext_ack *extack) 2099 { 2100 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2101 2102 return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid); 2103 } 2104 2105 static struct mlxsw_sp_fid * 2106 mlxsw_sp_bridge_8021q_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device, 2107 u16 vid) 2108 { 2109 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2110 2111 return mlxsw_sp_fid_8021q_lookup(mlxsw_sp, vid); 2112 } 2113 2114 static u16 2115 mlxsw_sp_bridge_8021q_fid_vid(struct mlxsw_sp_bridge_device *bridge_device, 2116 const struct mlxsw_sp_fid *fid) 2117 { 2118 return mlxsw_sp_fid_8021q_vid(fid); 2119 } 2120 2121 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = { 2122 .port_join = mlxsw_sp_bridge_8021q_port_join, 2123 .port_leave = mlxsw_sp_bridge_8021q_port_leave, 2124 .vxlan_join = mlxsw_sp_bridge_8021q_vxlan_join, 2125 .fid_get = mlxsw_sp_bridge_8021q_fid_get, 2126 .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, 2127 .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, 2128 }; 2129 2130 static bool 2131 mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port, 2132 const struct net_device *br_dev) 2133 { 2134 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2135 2136 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list, 2137 list) { 2138 if (mlxsw_sp_port_vlan->bridge_port && 2139 mlxsw_sp_port_vlan->bridge_port->bridge_device->dev == 2140 br_dev) 2141 return true; 2142 } 2143 2144 return false; 2145 } 2146 2147 static int 2148 mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2149 struct mlxsw_sp_bridge_port *bridge_port, 2150 struct mlxsw_sp_port *mlxsw_sp_port, 2151 struct netlink_ext_ack *extack) 2152 { 2153 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2154 struct net_device *dev = bridge_port->dev; 2155 u16 vid; 2156 2157 vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID; 2158 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 2159 if (WARN_ON(!mlxsw_sp_port_vlan)) 2160 return -EINVAL; 2161 2162 if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) { 2163 NL_SET_ERR_MSG_MOD(extack, "Can not bridge VLAN uppers of the same port"); 2164 return -EINVAL; 2165 } 2166 2167 /* Port is no longer usable as a router interface */ 2168 if (mlxsw_sp_port_vlan->fid) 2169 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan); 2170 2171 return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port, 2172 extack); 2173 } 2174 2175 static void 2176 mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2177 struct mlxsw_sp_bridge_port *bridge_port, 2178 struct mlxsw_sp_port *mlxsw_sp_port) 2179 { 2180 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2181 struct net_device *dev = bridge_port->dev; 2182 u16 vid; 2183 2184 vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : MLXSW_SP_DEFAULT_VID; 2185 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid); 2186 if (!mlxsw_sp_port_vlan || !mlxsw_sp_port_vlan->bridge_port) 2187 return; 2188 2189 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan); 2190 } 2191 2192 static int 2193 mlxsw_sp_bridge_8021d_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2194 const struct net_device *vxlan_dev, u16 vid, 2195 struct netlink_ext_ack *extack) 2196 { 2197 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2198 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 2199 struct mlxsw_sp_nve_params params = { 2200 .type = MLXSW_SP_NVE_TYPE_VXLAN, 2201 .vni = vxlan->cfg.vni, 2202 .dev = vxlan_dev, 2203 .ethertype = ETH_P_8021Q, 2204 }; 2205 struct mlxsw_sp_fid *fid; 2206 int err; 2207 2208 fid = mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex); 2209 if (IS_ERR(fid)) { 2210 NL_SET_ERR_MSG_MOD(extack, "Failed to create 802.1D FID"); 2211 return -EINVAL; 2212 } 2213 2214 if (mlxsw_sp_fid_vni_is_set(fid)) { 2215 NL_SET_ERR_MSG_MOD(extack, "VNI is already set on FID"); 2216 err = -EINVAL; 2217 goto err_vni_exists; 2218 } 2219 2220 err = mlxsw_sp_nve_fid_enable(mlxsw_sp, fid, ¶ms, extack); 2221 if (err) 2222 goto err_nve_fid_enable; 2223 2224 return 0; 2225 2226 err_nve_fid_enable: 2227 err_vni_exists: 2228 mlxsw_sp_fid_put(fid); 2229 return err; 2230 } 2231 2232 static struct mlxsw_sp_fid * 2233 mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device, 2234 u16 vid, struct netlink_ext_ack *extack) 2235 { 2236 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2237 2238 return mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex); 2239 } 2240 2241 static struct mlxsw_sp_fid * 2242 mlxsw_sp_bridge_8021d_fid_lookup(struct mlxsw_sp_bridge_device *bridge_device, 2243 u16 vid) 2244 { 2245 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev); 2246 2247 /* The only valid VLAN for a VLAN-unaware bridge is 0 */ 2248 if (vid) 2249 return NULL; 2250 2251 return mlxsw_sp_fid_8021d_lookup(mlxsw_sp, bridge_device->dev->ifindex); 2252 } 2253 2254 static u16 2255 mlxsw_sp_bridge_8021d_fid_vid(struct mlxsw_sp_bridge_device *bridge_device, 2256 const struct mlxsw_sp_fid *fid) 2257 { 2258 return 0; 2259 } 2260 2261 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = { 2262 .port_join = mlxsw_sp_bridge_8021d_port_join, 2263 .port_leave = mlxsw_sp_bridge_8021d_port_leave, 2264 .vxlan_join = mlxsw_sp_bridge_8021d_vxlan_join, 2265 .fid_get = mlxsw_sp_bridge_8021d_fid_get, 2266 .fid_lookup = mlxsw_sp_bridge_8021d_fid_lookup, 2267 .fid_vid = mlxsw_sp_bridge_8021d_fid_vid, 2268 }; 2269 2270 static int 2271 mlxsw_sp_bridge_8021ad_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2272 struct mlxsw_sp_bridge_port *bridge_port, 2273 struct mlxsw_sp_port *mlxsw_sp_port, 2274 struct netlink_ext_ack *extack) 2275 { 2276 int err; 2277 2278 err = mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, true, false); 2279 if (err) 2280 return err; 2281 2282 err = mlxsw_sp_bridge_vlan_aware_port_join(bridge_port, mlxsw_sp_port, 2283 extack); 2284 if (err) 2285 goto err_bridge_vlan_aware_port_join; 2286 2287 return 0; 2288 2289 err_bridge_vlan_aware_port_join: 2290 mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, false, true); 2291 return err; 2292 } 2293 2294 static void 2295 mlxsw_sp_bridge_8021ad_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2296 struct mlxsw_sp_bridge_port *bridge_port, 2297 struct mlxsw_sp_port *mlxsw_sp_port) 2298 { 2299 mlxsw_sp_bridge_vlan_aware_port_leave(mlxsw_sp_port); 2300 mlxsw_sp_port_vlan_classification_set(mlxsw_sp_port, false, true); 2301 } 2302 2303 static int 2304 mlxsw_sp_bridge_8021ad_vxlan_join(struct mlxsw_sp_bridge_device *bridge_device, 2305 const struct net_device *vxlan_dev, u16 vid, 2306 struct netlink_ext_ack *extack) 2307 { 2308 return mlxsw_sp_bridge_vlan_aware_vxlan_join(bridge_device, vxlan_dev, 2309 vid, ETH_P_8021AD, extack); 2310 } 2311 2312 static const struct mlxsw_sp_bridge_ops mlxsw_sp1_bridge_8021ad_ops = { 2313 .port_join = mlxsw_sp_bridge_8021ad_port_join, 2314 .port_leave = mlxsw_sp_bridge_8021ad_port_leave, 2315 .vxlan_join = mlxsw_sp_bridge_8021ad_vxlan_join, 2316 .fid_get = mlxsw_sp_bridge_8021q_fid_get, 2317 .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, 2318 .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, 2319 }; 2320 2321 static int 2322 mlxsw_sp2_bridge_8021ad_port_join(struct mlxsw_sp_bridge_device *bridge_device, 2323 struct mlxsw_sp_bridge_port *bridge_port, 2324 struct mlxsw_sp_port *mlxsw_sp_port, 2325 struct netlink_ext_ack *extack) 2326 { 2327 int err; 2328 2329 /* The EtherType of decapsulated packets is determined at the egress 2330 * port to allow 802.1d and 802.1ad bridges with VXLAN devices to 2331 * co-exist. 2332 */ 2333 err = mlxsw_sp_port_egress_ethtype_set(mlxsw_sp_port, ETH_P_8021AD); 2334 if (err) 2335 return err; 2336 2337 err = mlxsw_sp_bridge_8021ad_port_join(bridge_device, bridge_port, 2338 mlxsw_sp_port, extack); 2339 if (err) 2340 goto err_bridge_8021ad_port_join; 2341 2342 return 0; 2343 2344 err_bridge_8021ad_port_join: 2345 mlxsw_sp_port_egress_ethtype_set(mlxsw_sp_port, ETH_P_8021Q); 2346 return err; 2347 } 2348 2349 static void 2350 mlxsw_sp2_bridge_8021ad_port_leave(struct mlxsw_sp_bridge_device *bridge_device, 2351 struct mlxsw_sp_bridge_port *bridge_port, 2352 struct mlxsw_sp_port *mlxsw_sp_port) 2353 { 2354 mlxsw_sp_bridge_8021ad_port_leave(bridge_device, bridge_port, 2355 mlxsw_sp_port); 2356 mlxsw_sp_port_egress_ethtype_set(mlxsw_sp_port, ETH_P_8021Q); 2357 } 2358 2359 static const struct mlxsw_sp_bridge_ops mlxsw_sp2_bridge_8021ad_ops = { 2360 .port_join = mlxsw_sp2_bridge_8021ad_port_join, 2361 .port_leave = mlxsw_sp2_bridge_8021ad_port_leave, 2362 .vxlan_join = mlxsw_sp_bridge_8021ad_vxlan_join, 2363 .fid_get = mlxsw_sp_bridge_8021q_fid_get, 2364 .fid_lookup = mlxsw_sp_bridge_8021q_fid_lookup, 2365 .fid_vid = mlxsw_sp_bridge_8021q_fid_vid, 2366 }; 2367 2368 int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port, 2369 struct net_device *brport_dev, 2370 struct net_device *br_dev, 2371 struct netlink_ext_ack *extack) 2372 { 2373 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 2374 struct mlxsw_sp_bridge_device *bridge_device; 2375 struct mlxsw_sp_bridge_port *bridge_port; 2376 int err; 2377 2378 bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev, 2379 extack); 2380 if (IS_ERR(bridge_port)) 2381 return PTR_ERR(bridge_port); 2382 bridge_device = bridge_port->bridge_device; 2383 2384 err = bridge_device->ops->port_join(bridge_device, bridge_port, 2385 mlxsw_sp_port, extack); 2386 if (err) 2387 goto err_port_join; 2388 2389 return 0; 2390 2391 err_port_join: 2392 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port); 2393 return err; 2394 } 2395 2396 void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, 2397 struct net_device *brport_dev, 2398 struct net_device *br_dev) 2399 { 2400 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; 2401 struct mlxsw_sp_bridge_device *bridge_device; 2402 struct mlxsw_sp_bridge_port *bridge_port; 2403 2404 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2405 if (!bridge_device) 2406 return; 2407 bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev); 2408 if (!bridge_port) 2409 return; 2410 2411 bridge_device->ops->port_leave(bridge_device, bridge_port, 2412 mlxsw_sp_port); 2413 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port); 2414 } 2415 2416 int mlxsw_sp_bridge_vxlan_join(struct mlxsw_sp *mlxsw_sp, 2417 const struct net_device *br_dev, 2418 const struct net_device *vxlan_dev, u16 vid, 2419 struct netlink_ext_ack *extack) 2420 { 2421 struct mlxsw_sp_bridge_device *bridge_device; 2422 2423 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2424 if (WARN_ON(!bridge_device)) 2425 return -EINVAL; 2426 2427 return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, vid, 2428 extack); 2429 } 2430 2431 void mlxsw_sp_bridge_vxlan_leave(struct mlxsw_sp *mlxsw_sp, 2432 const struct net_device *vxlan_dev) 2433 { 2434 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 2435 struct mlxsw_sp_fid *fid; 2436 2437 /* If the VxLAN device is down, then the FID does not have a VNI */ 2438 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan->cfg.vni); 2439 if (!fid) 2440 return; 2441 2442 mlxsw_sp_nve_fid_disable(mlxsw_sp, fid); 2443 /* Drop both the reference we just took during lookup and the reference 2444 * the VXLAN device took. 2445 */ 2446 mlxsw_sp_fid_put(fid); 2447 mlxsw_sp_fid_put(fid); 2448 } 2449 2450 static void 2451 mlxsw_sp_switchdev_vxlan_addr_convert(const union vxlan_addr *vxlan_addr, 2452 enum mlxsw_sp_l3proto *proto, 2453 union mlxsw_sp_l3addr *addr) 2454 { 2455 if (vxlan_addr->sa.sa_family == AF_INET) { 2456 addr->addr4 = vxlan_addr->sin.sin_addr.s_addr; 2457 *proto = MLXSW_SP_L3_PROTO_IPV4; 2458 } else { 2459 addr->addr6 = vxlan_addr->sin6.sin6_addr; 2460 *proto = MLXSW_SP_L3_PROTO_IPV6; 2461 } 2462 } 2463 2464 static void 2465 mlxsw_sp_switchdev_addr_vxlan_convert(enum mlxsw_sp_l3proto proto, 2466 const union mlxsw_sp_l3addr *addr, 2467 union vxlan_addr *vxlan_addr) 2468 { 2469 switch (proto) { 2470 case MLXSW_SP_L3_PROTO_IPV4: 2471 vxlan_addr->sa.sa_family = AF_INET; 2472 vxlan_addr->sin.sin_addr.s_addr = addr->addr4; 2473 break; 2474 case MLXSW_SP_L3_PROTO_IPV6: 2475 vxlan_addr->sa.sa_family = AF_INET6; 2476 vxlan_addr->sin6.sin6_addr = addr->addr6; 2477 break; 2478 } 2479 } 2480 2481 static void mlxsw_sp_fdb_vxlan_call_notifiers(struct net_device *dev, 2482 const char *mac, 2483 enum mlxsw_sp_l3proto proto, 2484 union mlxsw_sp_l3addr *addr, 2485 __be32 vni, bool adding) 2486 { 2487 struct switchdev_notifier_vxlan_fdb_info info; 2488 struct vxlan_dev *vxlan = netdev_priv(dev); 2489 enum switchdev_notifier_type type; 2490 2491 type = adding ? SWITCHDEV_VXLAN_FDB_ADD_TO_BRIDGE : 2492 SWITCHDEV_VXLAN_FDB_DEL_TO_BRIDGE; 2493 mlxsw_sp_switchdev_addr_vxlan_convert(proto, addr, &info.remote_ip); 2494 info.remote_port = vxlan->cfg.dst_port; 2495 info.remote_vni = vni; 2496 info.remote_ifindex = 0; 2497 ether_addr_copy(info.eth_addr, mac); 2498 info.vni = vni; 2499 info.offloaded = adding; 2500 call_switchdev_notifiers(type, dev, &info.info, NULL); 2501 } 2502 2503 static void mlxsw_sp_fdb_nve_call_notifiers(struct net_device *dev, 2504 const char *mac, 2505 enum mlxsw_sp_l3proto proto, 2506 union mlxsw_sp_l3addr *addr, 2507 __be32 vni, 2508 bool adding) 2509 { 2510 if (netif_is_vxlan(dev)) 2511 mlxsw_sp_fdb_vxlan_call_notifiers(dev, mac, proto, addr, vni, 2512 adding); 2513 } 2514 2515 static void 2516 mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type, 2517 const char *mac, u16 vid, 2518 struct net_device *dev, bool offloaded) 2519 { 2520 struct switchdev_notifier_fdb_info info = {}; 2521 2522 info.addr = mac; 2523 info.vid = vid; 2524 info.offloaded = offloaded; 2525 call_switchdev_notifiers(type, dev, &info.info, NULL); 2526 } 2527 2528 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp, 2529 char *sfn_pl, int rec_index, 2530 bool adding) 2531 { 2532 unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core); 2533 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2534 struct mlxsw_sp_bridge_device *bridge_device; 2535 struct mlxsw_sp_bridge_port *bridge_port; 2536 struct mlxsw_sp_port *mlxsw_sp_port; 2537 enum switchdev_notifier_type type; 2538 char mac[ETH_ALEN]; 2539 u8 local_port; 2540 u16 vid, fid; 2541 bool do_notification = true; 2542 int err; 2543 2544 mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port); 2545 2546 if (WARN_ON_ONCE(local_port >= max_ports)) 2547 return; 2548 mlxsw_sp_port = mlxsw_sp->ports[local_port]; 2549 if (!mlxsw_sp_port) { 2550 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n"); 2551 goto just_remove; 2552 } 2553 2554 if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid)) 2555 goto just_remove; 2556 2557 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); 2558 if (!mlxsw_sp_port_vlan) { 2559 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); 2560 goto just_remove; 2561 } 2562 2563 bridge_port = mlxsw_sp_port_vlan->bridge_port; 2564 if (!bridge_port) { 2565 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n"); 2566 goto just_remove; 2567 } 2568 2569 bridge_device = bridge_port->bridge_device; 2570 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0; 2571 2572 do_fdb_op: 2573 err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, 2574 adding, true); 2575 if (err) { 2576 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n"); 2577 return; 2578 } 2579 2580 if (!do_notification) 2581 return; 2582 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; 2583 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev, adding); 2584 2585 return; 2586 2587 just_remove: 2588 adding = false; 2589 do_notification = false; 2590 goto do_fdb_op; 2591 } 2592 2593 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp, 2594 char *sfn_pl, int rec_index, 2595 bool adding) 2596 { 2597 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan; 2598 struct mlxsw_sp_bridge_device *bridge_device; 2599 struct mlxsw_sp_bridge_port *bridge_port; 2600 struct mlxsw_sp_port *mlxsw_sp_port; 2601 enum switchdev_notifier_type type; 2602 char mac[ETH_ALEN]; 2603 u16 lag_vid = 0; 2604 u16 lag_id; 2605 u16 vid, fid; 2606 bool do_notification = true; 2607 int err; 2608 2609 mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id); 2610 mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id); 2611 if (!mlxsw_sp_port) { 2612 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n"); 2613 goto just_remove; 2614 } 2615 2616 if (mlxsw_sp_fid_is_dummy(mlxsw_sp, fid)) 2617 goto just_remove; 2618 2619 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid); 2620 if (!mlxsw_sp_port_vlan) { 2621 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n"); 2622 goto just_remove; 2623 } 2624 2625 bridge_port = mlxsw_sp_port_vlan->bridge_port; 2626 if (!bridge_port) { 2627 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n"); 2628 goto just_remove; 2629 } 2630 2631 bridge_device = bridge_port->bridge_device; 2632 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0; 2633 lag_vid = mlxsw_sp_fid_lag_vid_valid(mlxsw_sp_port_vlan->fid) ? 2634 mlxsw_sp_port_vlan->vid : 0; 2635 2636 do_fdb_op: 2637 err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid, 2638 adding, true); 2639 if (err) { 2640 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n"); 2641 return; 2642 } 2643 2644 if (!do_notification) 2645 return; 2646 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE; 2647 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev, adding); 2648 2649 return; 2650 2651 just_remove: 2652 adding = false; 2653 do_notification = false; 2654 goto do_fdb_op; 2655 } 2656 2657 static int 2658 __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp, 2659 const struct mlxsw_sp_fid *fid, 2660 bool adding, 2661 struct net_device **nve_dev, 2662 u16 *p_vid, __be32 *p_vni) 2663 { 2664 struct mlxsw_sp_bridge_device *bridge_device; 2665 struct net_device *br_dev, *dev; 2666 int nve_ifindex; 2667 int err; 2668 2669 err = mlxsw_sp_fid_nve_ifindex(fid, &nve_ifindex); 2670 if (err) 2671 return err; 2672 2673 err = mlxsw_sp_fid_vni(fid, p_vni); 2674 if (err) 2675 return err; 2676 2677 dev = __dev_get_by_index(mlxsw_sp_net(mlxsw_sp), nve_ifindex); 2678 if (!dev) 2679 return -EINVAL; 2680 *nve_dev = dev; 2681 2682 if (!netif_running(dev)) 2683 return -EINVAL; 2684 2685 if (adding && !br_port_flag_is_set(dev, BR_LEARNING)) 2686 return -EINVAL; 2687 2688 if (adding && netif_is_vxlan(dev)) { 2689 struct vxlan_dev *vxlan = netdev_priv(dev); 2690 2691 if (!(vxlan->cfg.flags & VXLAN_F_LEARN)) 2692 return -EINVAL; 2693 } 2694 2695 br_dev = netdev_master_upper_dev_get(dev); 2696 if (!br_dev) 2697 return -EINVAL; 2698 2699 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2700 if (!bridge_device) 2701 return -EINVAL; 2702 2703 *p_vid = bridge_device->ops->fid_vid(bridge_device, fid); 2704 2705 return 0; 2706 } 2707 2708 static void mlxsw_sp_fdb_notify_mac_uc_tunnel_process(struct mlxsw_sp *mlxsw_sp, 2709 char *sfn_pl, 2710 int rec_index, 2711 bool adding) 2712 { 2713 enum mlxsw_reg_sfn_uc_tunnel_protocol sfn_proto; 2714 enum switchdev_notifier_type type; 2715 struct net_device *nve_dev; 2716 union mlxsw_sp_l3addr addr; 2717 struct mlxsw_sp_fid *fid; 2718 char mac[ETH_ALEN]; 2719 u16 fid_index, vid; 2720 __be32 vni; 2721 u32 uip; 2722 int err; 2723 2724 mlxsw_reg_sfn_uc_tunnel_unpack(sfn_pl, rec_index, mac, &fid_index, 2725 &uip, &sfn_proto); 2726 2727 fid = mlxsw_sp_fid_lookup_by_index(mlxsw_sp, fid_index); 2728 if (!fid) 2729 goto err_fid_lookup; 2730 2731 err = mlxsw_sp_nve_learned_ip_resolve(mlxsw_sp, uip, 2732 (enum mlxsw_sp_l3proto) sfn_proto, 2733 &addr); 2734 if (err) 2735 goto err_ip_resolve; 2736 2737 err = __mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, fid, adding, 2738 &nve_dev, &vid, &vni); 2739 if (err) 2740 goto err_fdb_process; 2741 2742 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index, 2743 (enum mlxsw_sp_l3proto) sfn_proto, 2744 &addr, adding, true); 2745 if (err) 2746 goto err_fdb_op; 2747 2748 mlxsw_sp_fdb_nve_call_notifiers(nve_dev, mac, 2749 (enum mlxsw_sp_l3proto) sfn_proto, 2750 &addr, vni, adding); 2751 2752 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : 2753 SWITCHDEV_FDB_DEL_TO_BRIDGE; 2754 mlxsw_sp_fdb_call_notifiers(type, mac, vid, nve_dev, adding); 2755 2756 mlxsw_sp_fid_put(fid); 2757 2758 return; 2759 2760 err_fdb_op: 2761 err_fdb_process: 2762 err_ip_resolve: 2763 mlxsw_sp_fid_put(fid); 2764 err_fid_lookup: 2765 /* Remove an FDB entry in case we cannot process it. Otherwise the 2766 * device will keep sending the same notification over and over again. 2767 */ 2768 mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, mac, fid_index, 2769 (enum mlxsw_sp_l3proto) sfn_proto, &addr, 2770 false, true); 2771 } 2772 2773 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp, 2774 char *sfn_pl, int rec_index) 2775 { 2776 switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) { 2777 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC: 2778 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, 2779 rec_index, true); 2780 break; 2781 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC: 2782 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl, 2783 rec_index, false); 2784 break; 2785 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG: 2786 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, 2787 rec_index, true); 2788 break; 2789 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG: 2790 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl, 2791 rec_index, false); 2792 break; 2793 case MLXSW_REG_SFN_REC_TYPE_LEARNED_UNICAST_TUNNEL: 2794 mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl, 2795 rec_index, true); 2796 break; 2797 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_UNICAST_TUNNEL: 2798 mlxsw_sp_fdb_notify_mac_uc_tunnel_process(mlxsw_sp, sfn_pl, 2799 rec_index, false); 2800 break; 2801 } 2802 } 2803 2804 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp, 2805 bool no_delay) 2806 { 2807 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; 2808 unsigned int interval = no_delay ? 0 : bridge->fdb_notify.interval; 2809 2810 mlxsw_core_schedule_dw(&bridge->fdb_notify.dw, 2811 msecs_to_jiffies(interval)); 2812 } 2813 2814 #define MLXSW_SP_FDB_SFN_QUERIES_PER_SESSION 10 2815 2816 static void mlxsw_sp_fdb_notify_work(struct work_struct *work) 2817 { 2818 struct mlxsw_sp_bridge *bridge; 2819 struct mlxsw_sp *mlxsw_sp; 2820 char *sfn_pl; 2821 int queries; 2822 u8 num_rec; 2823 int i; 2824 int err; 2825 2826 sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL); 2827 if (!sfn_pl) 2828 return; 2829 2830 bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work); 2831 mlxsw_sp = bridge->mlxsw_sp; 2832 2833 rtnl_lock(); 2834 queries = MLXSW_SP_FDB_SFN_QUERIES_PER_SESSION; 2835 while (queries > 0) { 2836 mlxsw_reg_sfn_pack(sfn_pl); 2837 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl); 2838 if (err) { 2839 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n"); 2840 goto out; 2841 } 2842 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl); 2843 for (i = 0; i < num_rec; i++) 2844 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i); 2845 if (num_rec != MLXSW_REG_SFN_REC_MAX_COUNT) 2846 goto out; 2847 queries--; 2848 } 2849 2850 out: 2851 rtnl_unlock(); 2852 kfree(sfn_pl); 2853 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp, !queries); 2854 } 2855 2856 struct mlxsw_sp_switchdev_event_work { 2857 struct work_struct work; 2858 union { 2859 struct switchdev_notifier_fdb_info fdb_info; 2860 struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info; 2861 }; 2862 struct net_device *dev; 2863 unsigned long event; 2864 }; 2865 2866 static void 2867 mlxsw_sp_switchdev_bridge_vxlan_fdb_event(struct mlxsw_sp *mlxsw_sp, 2868 struct mlxsw_sp_switchdev_event_work * 2869 switchdev_work, 2870 struct mlxsw_sp_fid *fid, __be32 vni) 2871 { 2872 struct switchdev_notifier_vxlan_fdb_info vxlan_fdb_info; 2873 struct switchdev_notifier_fdb_info *fdb_info; 2874 struct net_device *dev = switchdev_work->dev; 2875 enum mlxsw_sp_l3proto proto; 2876 union mlxsw_sp_l3addr addr; 2877 int err; 2878 2879 fdb_info = &switchdev_work->fdb_info; 2880 err = vxlan_fdb_find_uc(dev, fdb_info->addr, vni, &vxlan_fdb_info); 2881 if (err) 2882 return; 2883 2884 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info.remote_ip, 2885 &proto, &addr); 2886 2887 switch (switchdev_work->event) { 2888 case SWITCHDEV_FDB_ADD_TO_DEVICE: 2889 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, 2890 vxlan_fdb_info.eth_addr, 2891 mlxsw_sp_fid_index(fid), 2892 proto, &addr, true, false); 2893 if (err) 2894 return; 2895 vxlan_fdb_info.offloaded = true; 2896 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 2897 &vxlan_fdb_info.info, NULL); 2898 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 2899 vxlan_fdb_info.eth_addr, 2900 fdb_info->vid, dev, true); 2901 break; 2902 case SWITCHDEV_FDB_DEL_TO_DEVICE: 2903 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, 2904 vxlan_fdb_info.eth_addr, 2905 mlxsw_sp_fid_index(fid), 2906 proto, &addr, false, 2907 false); 2908 vxlan_fdb_info.offloaded = false; 2909 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 2910 &vxlan_fdb_info.info, NULL); 2911 break; 2912 } 2913 } 2914 2915 static void 2916 mlxsw_sp_switchdev_bridge_nve_fdb_event(struct mlxsw_sp_switchdev_event_work * 2917 switchdev_work) 2918 { 2919 struct mlxsw_sp_bridge_device *bridge_device; 2920 struct net_device *dev = switchdev_work->dev; 2921 struct net_device *br_dev; 2922 struct mlxsw_sp *mlxsw_sp; 2923 struct mlxsw_sp_fid *fid; 2924 __be32 vni; 2925 int err; 2926 2927 if (switchdev_work->event != SWITCHDEV_FDB_ADD_TO_DEVICE && 2928 switchdev_work->event != SWITCHDEV_FDB_DEL_TO_DEVICE) 2929 return; 2930 2931 if (switchdev_work->event == SWITCHDEV_FDB_ADD_TO_DEVICE && 2932 (!switchdev_work->fdb_info.added_by_user || 2933 switchdev_work->fdb_info.is_local)) 2934 return; 2935 2936 if (!netif_running(dev)) 2937 return; 2938 br_dev = netdev_master_upper_dev_get(dev); 2939 if (!br_dev) 2940 return; 2941 if (!netif_is_bridge_master(br_dev)) 2942 return; 2943 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 2944 if (!mlxsw_sp) 2945 return; 2946 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 2947 if (!bridge_device) 2948 return; 2949 2950 fid = bridge_device->ops->fid_lookup(bridge_device, 2951 switchdev_work->fdb_info.vid); 2952 if (!fid) 2953 return; 2954 2955 err = mlxsw_sp_fid_vni(fid, &vni); 2956 if (err) 2957 goto out; 2958 2959 mlxsw_sp_switchdev_bridge_vxlan_fdb_event(mlxsw_sp, switchdev_work, fid, 2960 vni); 2961 2962 out: 2963 mlxsw_sp_fid_put(fid); 2964 } 2965 2966 static void mlxsw_sp_switchdev_bridge_fdb_event_work(struct work_struct *work) 2967 { 2968 struct mlxsw_sp_switchdev_event_work *switchdev_work = 2969 container_of(work, struct mlxsw_sp_switchdev_event_work, work); 2970 struct net_device *dev = switchdev_work->dev; 2971 struct switchdev_notifier_fdb_info *fdb_info; 2972 struct mlxsw_sp_port *mlxsw_sp_port; 2973 int err; 2974 2975 rtnl_lock(); 2976 if (netif_is_vxlan(dev)) { 2977 mlxsw_sp_switchdev_bridge_nve_fdb_event(switchdev_work); 2978 goto out; 2979 } 2980 2981 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev); 2982 if (!mlxsw_sp_port) 2983 goto out; 2984 2985 switch (switchdev_work->event) { 2986 case SWITCHDEV_FDB_ADD_TO_DEVICE: 2987 fdb_info = &switchdev_work->fdb_info; 2988 if (!fdb_info->added_by_user || fdb_info->is_local) 2989 break; 2990 err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true); 2991 if (err) 2992 break; 2993 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 2994 fdb_info->addr, 2995 fdb_info->vid, dev, true); 2996 break; 2997 case SWITCHDEV_FDB_DEL_TO_DEVICE: 2998 fdb_info = &switchdev_work->fdb_info; 2999 mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false); 3000 break; 3001 case SWITCHDEV_FDB_ADD_TO_BRIDGE: 3002 case SWITCHDEV_FDB_DEL_TO_BRIDGE: 3003 /* These events are only used to potentially update an existing 3004 * SPAN mirror. 3005 */ 3006 break; 3007 } 3008 3009 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp); 3010 3011 out: 3012 rtnl_unlock(); 3013 kfree(switchdev_work->fdb_info.addr); 3014 kfree(switchdev_work); 3015 dev_put(dev); 3016 } 3017 3018 static void 3019 mlxsw_sp_switchdev_vxlan_fdb_add(struct mlxsw_sp *mlxsw_sp, 3020 struct mlxsw_sp_switchdev_event_work * 3021 switchdev_work) 3022 { 3023 struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; 3024 struct mlxsw_sp_bridge_device *bridge_device; 3025 struct net_device *dev = switchdev_work->dev; 3026 u8 all_zeros_mac[ETH_ALEN] = { 0 }; 3027 enum mlxsw_sp_l3proto proto; 3028 union mlxsw_sp_l3addr addr; 3029 struct net_device *br_dev; 3030 struct mlxsw_sp_fid *fid; 3031 u16 vid; 3032 int err; 3033 3034 vxlan_fdb_info = &switchdev_work->vxlan_fdb_info; 3035 br_dev = netdev_master_upper_dev_get(dev); 3036 3037 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3038 if (!bridge_device) 3039 return; 3040 3041 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan_fdb_info->vni); 3042 if (!fid) 3043 return; 3044 3045 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info->remote_ip, 3046 &proto, &addr); 3047 3048 if (ether_addr_equal(vxlan_fdb_info->eth_addr, all_zeros_mac)) { 3049 err = mlxsw_sp_nve_flood_ip_add(mlxsw_sp, fid, proto, &addr); 3050 if (err) { 3051 mlxsw_sp_fid_put(fid); 3052 return; 3053 } 3054 vxlan_fdb_info->offloaded = true; 3055 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 3056 &vxlan_fdb_info->info, NULL); 3057 mlxsw_sp_fid_put(fid); 3058 return; 3059 } 3060 3061 /* The device has a single FDB table, whereas Linux has two - one 3062 * in the bridge driver and another in the VxLAN driver. We only 3063 * program an entry to the device if the MAC points to the VxLAN 3064 * device in the bridge's FDB table 3065 */ 3066 vid = bridge_device->ops->fid_vid(bridge_device, fid); 3067 if (br_fdb_find_port(br_dev, vxlan_fdb_info->eth_addr, vid) != dev) 3068 goto err_br_fdb_find; 3069 3070 err = mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info->eth_addr, 3071 mlxsw_sp_fid_index(fid), proto, 3072 &addr, true, false); 3073 if (err) 3074 goto err_fdb_tunnel_uc_op; 3075 vxlan_fdb_info->offloaded = true; 3076 call_switchdev_notifiers(SWITCHDEV_VXLAN_FDB_OFFLOADED, dev, 3077 &vxlan_fdb_info->info, NULL); 3078 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 3079 vxlan_fdb_info->eth_addr, vid, dev, true); 3080 3081 mlxsw_sp_fid_put(fid); 3082 3083 return; 3084 3085 err_fdb_tunnel_uc_op: 3086 err_br_fdb_find: 3087 mlxsw_sp_fid_put(fid); 3088 } 3089 3090 static void 3091 mlxsw_sp_switchdev_vxlan_fdb_del(struct mlxsw_sp *mlxsw_sp, 3092 struct mlxsw_sp_switchdev_event_work * 3093 switchdev_work) 3094 { 3095 struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; 3096 struct mlxsw_sp_bridge_device *bridge_device; 3097 struct net_device *dev = switchdev_work->dev; 3098 struct net_device *br_dev = netdev_master_upper_dev_get(dev); 3099 u8 all_zeros_mac[ETH_ALEN] = { 0 }; 3100 enum mlxsw_sp_l3proto proto; 3101 union mlxsw_sp_l3addr addr; 3102 struct mlxsw_sp_fid *fid; 3103 u16 vid; 3104 3105 vxlan_fdb_info = &switchdev_work->vxlan_fdb_info; 3106 3107 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3108 if (!bridge_device) 3109 return; 3110 3111 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vxlan_fdb_info->vni); 3112 if (!fid) 3113 return; 3114 3115 mlxsw_sp_switchdev_vxlan_addr_convert(&vxlan_fdb_info->remote_ip, 3116 &proto, &addr); 3117 3118 if (ether_addr_equal(vxlan_fdb_info->eth_addr, all_zeros_mac)) { 3119 mlxsw_sp_nve_flood_ip_del(mlxsw_sp, fid, proto, &addr); 3120 mlxsw_sp_fid_put(fid); 3121 return; 3122 } 3123 3124 mlxsw_sp_port_fdb_tunnel_uc_op(mlxsw_sp, vxlan_fdb_info->eth_addr, 3125 mlxsw_sp_fid_index(fid), proto, &addr, 3126 false, false); 3127 vid = bridge_device->ops->fid_vid(bridge_device, fid); 3128 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED, 3129 vxlan_fdb_info->eth_addr, vid, dev, false); 3130 3131 mlxsw_sp_fid_put(fid); 3132 } 3133 3134 static void mlxsw_sp_switchdev_vxlan_fdb_event_work(struct work_struct *work) 3135 { 3136 struct mlxsw_sp_switchdev_event_work *switchdev_work = 3137 container_of(work, struct mlxsw_sp_switchdev_event_work, work); 3138 struct net_device *dev = switchdev_work->dev; 3139 struct mlxsw_sp *mlxsw_sp; 3140 struct net_device *br_dev; 3141 3142 rtnl_lock(); 3143 3144 if (!netif_running(dev)) 3145 goto out; 3146 br_dev = netdev_master_upper_dev_get(dev); 3147 if (!br_dev) 3148 goto out; 3149 if (!netif_is_bridge_master(br_dev)) 3150 goto out; 3151 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3152 if (!mlxsw_sp) 3153 goto out; 3154 3155 switch (switchdev_work->event) { 3156 case SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE: 3157 mlxsw_sp_switchdev_vxlan_fdb_add(mlxsw_sp, switchdev_work); 3158 break; 3159 case SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE: 3160 mlxsw_sp_switchdev_vxlan_fdb_del(mlxsw_sp, switchdev_work); 3161 break; 3162 } 3163 3164 out: 3165 rtnl_unlock(); 3166 kfree(switchdev_work); 3167 dev_put(dev); 3168 } 3169 3170 static int 3171 mlxsw_sp_switchdev_vxlan_work_prepare(struct mlxsw_sp_switchdev_event_work * 3172 switchdev_work, 3173 struct switchdev_notifier_info *info) 3174 { 3175 struct vxlan_dev *vxlan = netdev_priv(switchdev_work->dev); 3176 struct switchdev_notifier_vxlan_fdb_info *vxlan_fdb_info; 3177 struct vxlan_config *cfg = &vxlan->cfg; 3178 struct netlink_ext_ack *extack; 3179 3180 extack = switchdev_notifier_info_to_extack(info); 3181 vxlan_fdb_info = container_of(info, 3182 struct switchdev_notifier_vxlan_fdb_info, 3183 info); 3184 3185 if (vxlan_fdb_info->remote_port != cfg->dst_port) { 3186 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default remote port is not supported"); 3187 return -EOPNOTSUPP; 3188 } 3189 if (vxlan_fdb_info->remote_vni != cfg->vni || 3190 vxlan_fdb_info->vni != cfg->vni) { 3191 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Non-default VNI is not supported"); 3192 return -EOPNOTSUPP; 3193 } 3194 if (vxlan_fdb_info->remote_ifindex) { 3195 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Local interface is not supported"); 3196 return -EOPNOTSUPP; 3197 } 3198 if (is_multicast_ether_addr(vxlan_fdb_info->eth_addr)) { 3199 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast MAC addresses not supported"); 3200 return -EOPNOTSUPP; 3201 } 3202 if (vxlan_addr_multicast(&vxlan_fdb_info->remote_ip)) { 3203 NL_SET_ERR_MSG_MOD(extack, "VxLAN: FDB: Multicast destination IP is not supported"); 3204 return -EOPNOTSUPP; 3205 } 3206 3207 switchdev_work->vxlan_fdb_info = *vxlan_fdb_info; 3208 3209 return 0; 3210 } 3211 3212 /* Called under rcu_read_lock() */ 3213 static int mlxsw_sp_switchdev_event(struct notifier_block *unused, 3214 unsigned long event, void *ptr) 3215 { 3216 struct net_device *dev = switchdev_notifier_info_to_dev(ptr); 3217 struct mlxsw_sp_switchdev_event_work *switchdev_work; 3218 struct switchdev_notifier_fdb_info *fdb_info; 3219 struct switchdev_notifier_info *info = ptr; 3220 struct net_device *br_dev; 3221 int err; 3222 3223 if (event == SWITCHDEV_PORT_ATTR_SET) { 3224 err = switchdev_handle_port_attr_set(dev, ptr, 3225 mlxsw_sp_port_dev_check, 3226 mlxsw_sp_port_attr_set); 3227 return notifier_from_errno(err); 3228 } 3229 3230 /* Tunnel devices are not our uppers, so check their master instead */ 3231 br_dev = netdev_master_upper_dev_get_rcu(dev); 3232 if (!br_dev) 3233 return NOTIFY_DONE; 3234 if (!netif_is_bridge_master(br_dev)) 3235 return NOTIFY_DONE; 3236 if (!mlxsw_sp_port_dev_lower_find_rcu(br_dev)) 3237 return NOTIFY_DONE; 3238 3239 switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); 3240 if (!switchdev_work) 3241 return NOTIFY_BAD; 3242 3243 switchdev_work->dev = dev; 3244 switchdev_work->event = event; 3245 3246 switch (event) { 3247 case SWITCHDEV_FDB_ADD_TO_DEVICE: 3248 case SWITCHDEV_FDB_DEL_TO_DEVICE: 3249 case SWITCHDEV_FDB_ADD_TO_BRIDGE: 3250 case SWITCHDEV_FDB_DEL_TO_BRIDGE: 3251 fdb_info = container_of(info, 3252 struct switchdev_notifier_fdb_info, 3253 info); 3254 INIT_WORK(&switchdev_work->work, 3255 mlxsw_sp_switchdev_bridge_fdb_event_work); 3256 memcpy(&switchdev_work->fdb_info, ptr, 3257 sizeof(switchdev_work->fdb_info)); 3258 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); 3259 if (!switchdev_work->fdb_info.addr) 3260 goto err_addr_alloc; 3261 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, 3262 fdb_info->addr); 3263 /* Take a reference on the device. This can be either 3264 * upper device containig mlxsw_sp_port or just a 3265 * mlxsw_sp_port 3266 */ 3267 dev_hold(dev); 3268 break; 3269 case SWITCHDEV_VXLAN_FDB_ADD_TO_DEVICE: 3270 case SWITCHDEV_VXLAN_FDB_DEL_TO_DEVICE: 3271 INIT_WORK(&switchdev_work->work, 3272 mlxsw_sp_switchdev_vxlan_fdb_event_work); 3273 err = mlxsw_sp_switchdev_vxlan_work_prepare(switchdev_work, 3274 info); 3275 if (err) 3276 goto err_vxlan_work_prepare; 3277 dev_hold(dev); 3278 break; 3279 default: 3280 kfree(switchdev_work); 3281 return NOTIFY_DONE; 3282 } 3283 3284 mlxsw_core_schedule_work(&switchdev_work->work); 3285 3286 return NOTIFY_DONE; 3287 3288 err_vxlan_work_prepare: 3289 err_addr_alloc: 3290 kfree(switchdev_work); 3291 return NOTIFY_BAD; 3292 } 3293 3294 struct notifier_block mlxsw_sp_switchdev_notifier = { 3295 .notifier_call = mlxsw_sp_switchdev_event, 3296 }; 3297 3298 static int 3299 mlxsw_sp_switchdev_vxlan_vlan_add(struct mlxsw_sp *mlxsw_sp, 3300 struct mlxsw_sp_bridge_device *bridge_device, 3301 const struct net_device *vxlan_dev, u16 vid, 3302 bool flag_untagged, bool flag_pvid, 3303 struct netlink_ext_ack *extack) 3304 { 3305 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 3306 __be32 vni = vxlan->cfg.vni; 3307 struct mlxsw_sp_fid *fid; 3308 u16 old_vid; 3309 int err; 3310 3311 /* We cannot have the same VLAN as PVID and egress untagged on multiple 3312 * VxLAN devices. Note that we get this notification before the VLAN is 3313 * actually added to the bridge's database, so it is not possible for 3314 * the lookup function to return 'vxlan_dev' 3315 */ 3316 if (flag_untagged && flag_pvid && 3317 mlxsw_sp_bridge_8021q_vxlan_dev_find(bridge_device->dev, vid)) { 3318 NL_SET_ERR_MSG_MOD(extack, "VLAN already mapped to a different VNI"); 3319 return -EINVAL; 3320 } 3321 3322 if (!netif_running(vxlan_dev)) 3323 return 0; 3324 3325 /* First case: FID is not associated with this VNI, but the new VLAN 3326 * is both PVID and egress untagged. Need to enable NVE on the FID, if 3327 * it exists 3328 */ 3329 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni); 3330 if (!fid) { 3331 if (!flag_untagged || !flag_pvid) 3332 return 0; 3333 return bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, 3334 vid, extack); 3335 } 3336 3337 /* Second case: FID is associated with the VNI and the VLAN associated 3338 * with the FID is the same as the notified VLAN. This means the flags 3339 * (PVID / egress untagged) were toggled and that NVE should be 3340 * disabled on the FID 3341 */ 3342 old_vid = mlxsw_sp_fid_8021q_vid(fid); 3343 if (vid == old_vid) { 3344 if (WARN_ON(flag_untagged && flag_pvid)) { 3345 mlxsw_sp_fid_put(fid); 3346 return -EINVAL; 3347 } 3348 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); 3349 mlxsw_sp_fid_put(fid); 3350 return 0; 3351 } 3352 3353 /* Third case: A new VLAN was configured on the VxLAN device, but this 3354 * VLAN is not PVID, so there is nothing to do. 3355 */ 3356 if (!flag_pvid) { 3357 mlxsw_sp_fid_put(fid); 3358 return 0; 3359 } 3360 3361 /* Fourth case: Thew new VLAN is PVID, which means the VLAN currently 3362 * mapped to the VNI should be unmapped 3363 */ 3364 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); 3365 mlxsw_sp_fid_put(fid); 3366 3367 /* Fifth case: The new VLAN is also egress untagged, which means the 3368 * VLAN needs to be mapped to the VNI 3369 */ 3370 if (!flag_untagged) 3371 return 0; 3372 3373 err = bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, vid, extack); 3374 if (err) 3375 goto err_vxlan_join; 3376 3377 return 0; 3378 3379 err_vxlan_join: 3380 bridge_device->ops->vxlan_join(bridge_device, vxlan_dev, old_vid, NULL); 3381 return err; 3382 } 3383 3384 static void 3385 mlxsw_sp_switchdev_vxlan_vlan_del(struct mlxsw_sp *mlxsw_sp, 3386 struct mlxsw_sp_bridge_device *bridge_device, 3387 const struct net_device *vxlan_dev, u16 vid) 3388 { 3389 struct vxlan_dev *vxlan = netdev_priv(vxlan_dev); 3390 __be32 vni = vxlan->cfg.vni; 3391 struct mlxsw_sp_fid *fid; 3392 3393 if (!netif_running(vxlan_dev)) 3394 return; 3395 3396 fid = mlxsw_sp_fid_lookup_by_vni(mlxsw_sp, vni); 3397 if (!fid) 3398 return; 3399 3400 /* A different VLAN than the one mapped to the VNI is deleted */ 3401 if (mlxsw_sp_fid_8021q_vid(fid) != vid) 3402 goto out; 3403 3404 mlxsw_sp_bridge_vxlan_leave(mlxsw_sp, vxlan_dev); 3405 3406 out: 3407 mlxsw_sp_fid_put(fid); 3408 } 3409 3410 static int 3411 mlxsw_sp_switchdev_vxlan_vlans_add(struct net_device *vxlan_dev, 3412 struct switchdev_notifier_port_obj_info * 3413 port_obj_info) 3414 { 3415 struct switchdev_obj_port_vlan *vlan = 3416 SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj); 3417 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; 3418 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; 3419 struct mlxsw_sp_bridge_device *bridge_device; 3420 struct netlink_ext_ack *extack; 3421 struct mlxsw_sp *mlxsw_sp; 3422 struct net_device *br_dev; 3423 3424 extack = switchdev_notifier_info_to_extack(&port_obj_info->info); 3425 br_dev = netdev_master_upper_dev_get(vxlan_dev); 3426 if (!br_dev) 3427 return 0; 3428 3429 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3430 if (!mlxsw_sp) 3431 return 0; 3432 3433 port_obj_info->handled = true; 3434 3435 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3436 if (!bridge_device) 3437 return -EINVAL; 3438 3439 if (!bridge_device->vlan_enabled) 3440 return 0; 3441 3442 return mlxsw_sp_switchdev_vxlan_vlan_add(mlxsw_sp, bridge_device, 3443 vxlan_dev, vlan->vid, 3444 flag_untagged, 3445 flag_pvid, extack); 3446 } 3447 3448 static void 3449 mlxsw_sp_switchdev_vxlan_vlans_del(struct net_device *vxlan_dev, 3450 struct switchdev_notifier_port_obj_info * 3451 port_obj_info) 3452 { 3453 struct switchdev_obj_port_vlan *vlan = 3454 SWITCHDEV_OBJ_PORT_VLAN(port_obj_info->obj); 3455 struct mlxsw_sp_bridge_device *bridge_device; 3456 struct mlxsw_sp *mlxsw_sp; 3457 struct net_device *br_dev; 3458 3459 br_dev = netdev_master_upper_dev_get(vxlan_dev); 3460 if (!br_dev) 3461 return; 3462 3463 mlxsw_sp = mlxsw_sp_lower_get(br_dev); 3464 if (!mlxsw_sp) 3465 return; 3466 3467 port_obj_info->handled = true; 3468 3469 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev); 3470 if (!bridge_device) 3471 return; 3472 3473 if (!bridge_device->vlan_enabled) 3474 return; 3475 3476 mlxsw_sp_switchdev_vxlan_vlan_del(mlxsw_sp, bridge_device, vxlan_dev, 3477 vlan->vid); 3478 } 3479 3480 static int 3481 mlxsw_sp_switchdev_handle_vxlan_obj_add(struct net_device *vxlan_dev, 3482 struct switchdev_notifier_port_obj_info * 3483 port_obj_info) 3484 { 3485 int err = 0; 3486 3487 switch (port_obj_info->obj->id) { 3488 case SWITCHDEV_OBJ_ID_PORT_VLAN: 3489 err = mlxsw_sp_switchdev_vxlan_vlans_add(vxlan_dev, 3490 port_obj_info); 3491 break; 3492 default: 3493 break; 3494 } 3495 3496 return err; 3497 } 3498 3499 static void 3500 mlxsw_sp_switchdev_handle_vxlan_obj_del(struct net_device *vxlan_dev, 3501 struct switchdev_notifier_port_obj_info * 3502 port_obj_info) 3503 { 3504 switch (port_obj_info->obj->id) { 3505 case SWITCHDEV_OBJ_ID_PORT_VLAN: 3506 mlxsw_sp_switchdev_vxlan_vlans_del(vxlan_dev, port_obj_info); 3507 break; 3508 default: 3509 break; 3510 } 3511 } 3512 3513 static int mlxsw_sp_switchdev_blocking_event(struct notifier_block *unused, 3514 unsigned long event, void *ptr) 3515 { 3516 struct net_device *dev = switchdev_notifier_info_to_dev(ptr); 3517 int err = 0; 3518 3519 switch (event) { 3520 case SWITCHDEV_PORT_OBJ_ADD: 3521 if (netif_is_vxlan(dev)) 3522 err = mlxsw_sp_switchdev_handle_vxlan_obj_add(dev, ptr); 3523 else 3524 err = switchdev_handle_port_obj_add(dev, ptr, 3525 mlxsw_sp_port_dev_check, 3526 mlxsw_sp_port_obj_add); 3527 return notifier_from_errno(err); 3528 case SWITCHDEV_PORT_OBJ_DEL: 3529 if (netif_is_vxlan(dev)) 3530 mlxsw_sp_switchdev_handle_vxlan_obj_del(dev, ptr); 3531 else 3532 err = switchdev_handle_port_obj_del(dev, ptr, 3533 mlxsw_sp_port_dev_check, 3534 mlxsw_sp_port_obj_del); 3535 return notifier_from_errno(err); 3536 case SWITCHDEV_PORT_ATTR_SET: 3537 err = switchdev_handle_port_attr_set(dev, ptr, 3538 mlxsw_sp_port_dev_check, 3539 mlxsw_sp_port_attr_set); 3540 return notifier_from_errno(err); 3541 } 3542 3543 return NOTIFY_DONE; 3544 } 3545 3546 static struct notifier_block mlxsw_sp_switchdev_blocking_notifier = { 3547 .notifier_call = mlxsw_sp_switchdev_blocking_event, 3548 }; 3549 3550 u8 3551 mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port) 3552 { 3553 return bridge_port->stp_state; 3554 } 3555 3556 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp) 3557 { 3558 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge; 3559 struct notifier_block *nb; 3560 int err; 3561 3562 err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME); 3563 if (err) { 3564 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n"); 3565 return err; 3566 } 3567 3568 err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier); 3569 if (err) { 3570 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n"); 3571 return err; 3572 } 3573 3574 nb = &mlxsw_sp_switchdev_blocking_notifier; 3575 err = register_switchdev_blocking_notifier(nb); 3576 if (err) { 3577 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev blocking notifier\n"); 3578 goto err_register_switchdev_blocking_notifier; 3579 } 3580 3581 INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work); 3582 bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL; 3583 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp, false); 3584 return 0; 3585 3586 err_register_switchdev_blocking_notifier: 3587 unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); 3588 return err; 3589 } 3590 3591 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp) 3592 { 3593 struct notifier_block *nb; 3594 3595 cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw); 3596 3597 nb = &mlxsw_sp_switchdev_blocking_notifier; 3598 unregister_switchdev_blocking_notifier(nb); 3599 3600 unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier); 3601 } 3602 3603 static void mlxsw_sp1_switchdev_init(struct mlxsw_sp *mlxsw_sp) 3604 { 3605 mlxsw_sp->bridge->bridge_8021ad_ops = &mlxsw_sp1_bridge_8021ad_ops; 3606 } 3607 3608 const struct mlxsw_sp_switchdev_ops mlxsw_sp1_switchdev_ops = { 3609 .init = mlxsw_sp1_switchdev_init, 3610 }; 3611 3612 static void mlxsw_sp2_switchdev_init(struct mlxsw_sp *mlxsw_sp) 3613 { 3614 mlxsw_sp->bridge->bridge_8021ad_ops = &mlxsw_sp2_bridge_8021ad_ops; 3615 } 3616 3617 const struct mlxsw_sp_switchdev_ops mlxsw_sp2_switchdev_ops = { 3618 .init = mlxsw_sp2_switchdev_init, 3619 }; 3620 3621 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp) 3622 { 3623 struct mlxsw_sp_bridge *bridge; 3624 3625 bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL); 3626 if (!bridge) 3627 return -ENOMEM; 3628 mlxsw_sp->bridge = bridge; 3629 bridge->mlxsw_sp = mlxsw_sp; 3630 3631 INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list); 3632 3633 bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops; 3634 bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops; 3635 3636 mlxsw_sp->switchdev_ops->init(mlxsw_sp); 3637 3638 return mlxsw_sp_fdb_init(mlxsw_sp); 3639 } 3640 3641 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp) 3642 { 3643 mlxsw_sp_fdb_fini(mlxsw_sp); 3644 WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list)); 3645 kfree(mlxsw_sp->bridge); 3646 } 3647 3648