2 * drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
3 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
5 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
6 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
37 #include <linux/kernel.h>
38 #include <linux/types.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/slab.h>
42 #include <linux/device.h>
43 #include <linux/skbuff.h>
44 #include <linux/if_vlan.h>
45 #include <linux/if_bridge.h>
46 #include <linux/workqueue.h>
47 #include <linux/jiffies.h>
48 #include <linux/rtnetlink.h>
49 #include <net/switchdev.h>
55 struct mlxsw_sp_bridge_ops;
57 struct mlxsw_sp_bridge {
58 struct mlxsw_sp *mlxsw_sp;
60 struct delayed_work dw;
61 #define MLXSW_SP_DEFAULT_LEARNING_INTERVAL 100
62 unsigned int interval; /* ms */
64 #define MLXSW_SP_MIN_AGEING_TIME 10
65 #define MLXSW_SP_MAX_AGEING_TIME 1000000
66 #define MLXSW_SP_DEFAULT_AGEING_TIME 300
68 bool vlan_enabled_exists;
69 struct list_head bridges_list;
70 struct list_head mids_list;
71 DECLARE_BITMAP(mids_bitmap, MLXSW_SP_MID_MAX);
72 const struct mlxsw_sp_bridge_ops *bridge_8021q_ops;
73 const struct mlxsw_sp_bridge_ops *bridge_8021d_ops;
76 struct mlxsw_sp_bridge_device {
77 struct net_device *dev;
78 struct list_head list;
79 struct list_head ports_list;
82 const struct mlxsw_sp_bridge_ops *ops;
85 struct mlxsw_sp_bridge_port {
86 struct net_device *dev;
87 struct mlxsw_sp_bridge_device *bridge_device;
88 struct list_head list;
89 struct list_head vlans_list;
90 unsigned int ref_count;
101 struct mlxsw_sp_bridge_vlan {
102 struct list_head list;
103 struct list_head port_vlan_list;
107 struct mlxsw_sp_bridge_ops {
108 int (*port_join)(struct mlxsw_sp_bridge_device *bridge_device,
109 struct mlxsw_sp_bridge_port *bridge_port,
110 struct mlxsw_sp_port *mlxsw_sp_port);
111 void (*port_leave)(struct mlxsw_sp_bridge_device *bridge_device,
112 struct mlxsw_sp_bridge_port *bridge_port,
113 struct mlxsw_sp_port *mlxsw_sp_port);
114 struct mlxsw_sp_fid *
115 (*fid_get)(struct mlxsw_sp_bridge_device *bridge_device,
120 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
121 struct mlxsw_sp_bridge_port *bridge_port,
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)
128 struct mlxsw_sp_bridge_device *bridge_device;
130 list_for_each_entry(bridge_device, &bridge->bridges_list, list)
131 if (bridge_device->dev == br_dev)
132 return bridge_device;
137 static struct mlxsw_sp_bridge_device *
138 mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge,
139 struct net_device *br_dev)
141 struct device *dev = bridge->mlxsw_sp->bus_info->dev;
142 struct mlxsw_sp_bridge_device *bridge_device;
143 bool vlan_enabled = br_vlan_enabled(br_dev);
145 if (vlan_enabled && bridge->vlan_enabled_exists) {
146 dev_err(dev, "Only one VLAN-aware bridge is supported\n");
147 return ERR_PTR(-EINVAL);
150 bridge_device = kzalloc(sizeof(*bridge_device), GFP_KERNEL);
152 return ERR_PTR(-ENOMEM);
154 bridge_device->dev = br_dev;
155 bridge_device->vlan_enabled = vlan_enabled;
156 bridge_device->multicast_enabled = br_multicast_enabled(br_dev);
157 INIT_LIST_HEAD(&bridge_device->ports_list);
159 bridge->vlan_enabled_exists = true;
160 bridge_device->ops = bridge->bridge_8021q_ops;
162 bridge_device->ops = bridge->bridge_8021d_ops;
164 list_add(&bridge_device->list, &bridge->bridges_list);
166 return bridge_device;
170 mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge,
171 struct mlxsw_sp_bridge_device *bridge_device)
173 list_del(&bridge_device->list);
174 if (bridge_device->vlan_enabled)
175 bridge->vlan_enabled_exists = false;
176 WARN_ON(!list_empty(&bridge_device->ports_list));
177 kfree(bridge_device);
180 static struct mlxsw_sp_bridge_device *
181 mlxsw_sp_bridge_device_get(struct mlxsw_sp_bridge *bridge,
182 struct net_device *br_dev)
184 struct mlxsw_sp_bridge_device *bridge_device;
186 bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev);
188 return bridge_device;
190 return mlxsw_sp_bridge_device_create(bridge, br_dev);
194 mlxsw_sp_bridge_device_put(struct mlxsw_sp_bridge *bridge,
195 struct mlxsw_sp_bridge_device *bridge_device)
197 if (list_empty(&bridge_device->ports_list))
198 mlxsw_sp_bridge_device_destroy(bridge, bridge_device);
201 static struct mlxsw_sp_bridge_port *
202 __mlxsw_sp_bridge_port_find(const struct mlxsw_sp_bridge_device *bridge_device,
203 const struct net_device *brport_dev)
205 struct mlxsw_sp_bridge_port *bridge_port;
207 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
208 if (bridge_port->dev == brport_dev)
215 static struct mlxsw_sp_bridge_port *
216 mlxsw_sp_bridge_port_find(struct mlxsw_sp_bridge *bridge,
217 struct net_device *brport_dev)
219 struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev);
220 struct mlxsw_sp_bridge_device *bridge_device;
225 bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev);
229 return __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
232 static struct mlxsw_sp_bridge_port *
233 mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device,
234 struct net_device *brport_dev)
236 struct mlxsw_sp_bridge_port *bridge_port;
237 struct mlxsw_sp_port *mlxsw_sp_port;
239 bridge_port = kzalloc(sizeof(*bridge_port), GFP_KERNEL);
243 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(brport_dev);
244 bridge_port->lagged = mlxsw_sp_port->lagged;
245 if (bridge_port->lagged)
246 bridge_port->lag_id = mlxsw_sp_port->lag_id;
248 bridge_port->system_port = mlxsw_sp_port->local_port;
249 bridge_port->dev = brport_dev;
250 bridge_port->bridge_device = bridge_device;
251 bridge_port->stp_state = BR_STATE_DISABLED;
252 bridge_port->flags = BR_LEARNING | BR_FLOOD | BR_LEARNING_SYNC;
253 INIT_LIST_HEAD(&bridge_port->vlans_list);
254 list_add(&bridge_port->list, &bridge_device->ports_list);
255 bridge_port->ref_count = 1;
261 mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port)
263 list_del(&bridge_port->list);
264 WARN_ON(!list_empty(&bridge_port->vlans_list));
269 mlxsw_sp_bridge_port_should_destroy(const struct mlxsw_sp_bridge_port *
272 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_port->dev);
274 /* In case ports were pulled from out of a bridged LAG, then
275 * it's possible the reference count isn't zero, yet the bridge
276 * port should be destroyed, as it's no longer an upper of ours.
278 if (!mlxsw_sp && list_empty(&bridge_port->vlans_list))
280 else if (bridge_port->ref_count == 0)
286 static struct mlxsw_sp_bridge_port *
287 mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge,
288 struct net_device *brport_dev)
290 struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev);
291 struct mlxsw_sp_bridge_device *bridge_device;
292 struct mlxsw_sp_bridge_port *bridge_port;
295 bridge_port = mlxsw_sp_bridge_port_find(bridge, brport_dev);
297 bridge_port->ref_count++;
301 bridge_device = mlxsw_sp_bridge_device_get(bridge, br_dev);
302 if (IS_ERR(bridge_device))
303 return ERR_CAST(bridge_device);
305 bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev);
308 goto err_bridge_port_create;
313 err_bridge_port_create:
314 mlxsw_sp_bridge_device_put(bridge, bridge_device);
318 static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge,
319 struct mlxsw_sp_bridge_port *bridge_port)
321 struct mlxsw_sp_bridge_device *bridge_device;
323 bridge_port->ref_count--;
324 if (!mlxsw_sp_bridge_port_should_destroy(bridge_port))
326 bridge_device = bridge_port->bridge_device;
327 mlxsw_sp_bridge_port_destroy(bridge_port);
328 mlxsw_sp_bridge_device_put(bridge, bridge_device);
331 static struct mlxsw_sp_port_vlan *
332 mlxsw_sp_port_vlan_find_by_bridge(struct mlxsw_sp_port *mlxsw_sp_port,
333 const struct mlxsw_sp_bridge_device *
337 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
339 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
341 if (!mlxsw_sp_port_vlan->bridge_port)
343 if (mlxsw_sp_port_vlan->bridge_port->bridge_device !=
346 if (bridge_device->vlan_enabled &&
347 mlxsw_sp_port_vlan->vid != vid)
349 return mlxsw_sp_port_vlan;
355 static struct mlxsw_sp_port_vlan*
356 mlxsw_sp_port_vlan_find_by_fid(struct mlxsw_sp_port *mlxsw_sp_port,
359 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
361 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
363 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
365 if (fid && mlxsw_sp_fid_index(fid) == fid_index)
366 return mlxsw_sp_port_vlan;
372 static struct mlxsw_sp_bridge_vlan *
373 mlxsw_sp_bridge_vlan_find(const struct mlxsw_sp_bridge_port *bridge_port,
376 struct mlxsw_sp_bridge_vlan *bridge_vlan;
378 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
379 if (bridge_vlan->vid == vid)
386 static struct mlxsw_sp_bridge_vlan *
387 mlxsw_sp_bridge_vlan_create(struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
389 struct mlxsw_sp_bridge_vlan *bridge_vlan;
391 bridge_vlan = kzalloc(sizeof(*bridge_vlan), GFP_KERNEL);
395 INIT_LIST_HEAD(&bridge_vlan->port_vlan_list);
396 bridge_vlan->vid = vid;
397 list_add(&bridge_vlan->list, &bridge_port->vlans_list);
403 mlxsw_sp_bridge_vlan_destroy(struct mlxsw_sp_bridge_vlan *bridge_vlan)
405 list_del(&bridge_vlan->list);
406 WARN_ON(!list_empty(&bridge_vlan->port_vlan_list));
410 static struct mlxsw_sp_bridge_vlan *
411 mlxsw_sp_bridge_vlan_get(struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
413 struct mlxsw_sp_bridge_vlan *bridge_vlan;
415 bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
419 return mlxsw_sp_bridge_vlan_create(bridge_port, vid);
422 static void mlxsw_sp_bridge_vlan_put(struct mlxsw_sp_bridge_vlan *bridge_vlan)
424 if (list_empty(&bridge_vlan->port_vlan_list))
425 mlxsw_sp_bridge_vlan_destroy(bridge_vlan);
428 static void mlxsw_sp_port_bridge_flags_get(struct mlxsw_sp_bridge *bridge,
429 struct net_device *dev,
430 unsigned long *brport_flags)
432 struct mlxsw_sp_bridge_port *bridge_port;
434 bridge_port = mlxsw_sp_bridge_port_find(bridge, dev);
435 if (WARN_ON(!bridge_port))
438 memcpy(brport_flags, &bridge_port->flags, sizeof(*brport_flags));
441 static int mlxsw_sp_port_attr_get(struct net_device *dev,
442 struct switchdev_attr *attr)
444 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
445 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
448 case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
449 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
450 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
451 attr->u.ppid.id_len);
453 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
454 mlxsw_sp_port_bridge_flags_get(mlxsw_sp->bridge, attr->orig_dev,
455 &attr->u.brport_flags);
457 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
458 attr->u.brport_flags_support = BR_LEARNING | BR_FLOOD;
468 mlxsw_sp_port_bridge_vlan_stp_set(struct mlxsw_sp_port *mlxsw_sp_port,
469 struct mlxsw_sp_bridge_vlan *bridge_vlan,
472 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
474 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
476 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
478 return mlxsw_sp_port_vid_stp_set(mlxsw_sp_port,
479 bridge_vlan->vid, state);
485 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
486 struct switchdev_trans *trans,
487 struct net_device *orig_dev,
490 struct mlxsw_sp_bridge_port *bridge_port;
491 struct mlxsw_sp_bridge_vlan *bridge_vlan;
494 if (switchdev_trans_ph_prepare(trans))
497 /* It's possible we failed to enslave the port, yet this
498 * operation is executed due to it being deferred.
500 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
505 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
506 err = mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port,
509 goto err_port_bridge_vlan_stp_set;
512 bridge_port->stp_state = state;
516 err_port_bridge_vlan_stp_set:
517 list_for_each_entry_continue_reverse(bridge_vlan,
518 &bridge_port->vlans_list, list)
519 mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, bridge_vlan,
520 bridge_port->stp_state);
525 mlxsw_sp_port_bridge_vlan_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
526 struct mlxsw_sp_bridge_vlan *bridge_vlan,
527 enum mlxsw_sp_flood_type packet_type,
530 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
532 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
534 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
536 return mlxsw_sp_fid_flood_set(mlxsw_sp_port_vlan->fid,
538 mlxsw_sp_port->local_port,
546 mlxsw_sp_bridge_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port,
547 struct mlxsw_sp_bridge_port *bridge_port,
548 enum mlxsw_sp_flood_type packet_type,
551 struct mlxsw_sp_bridge_vlan *bridge_vlan;
554 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
555 err = mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port,
560 goto err_port_bridge_vlan_flood_set;
565 err_port_bridge_vlan_flood_set:
566 list_for_each_entry_continue_reverse(bridge_vlan,
567 &bridge_port->vlans_list, list)
568 mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, bridge_vlan,
569 packet_type, !member);
574 mlxsw_sp_port_bridge_vlan_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
575 struct mlxsw_sp_bridge_vlan *bridge_vlan,
578 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
579 u16 vid = bridge_vlan->vid;
581 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
583 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
585 return mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, set);
592 mlxsw_sp_bridge_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
593 struct mlxsw_sp_bridge_port *bridge_port,
596 struct mlxsw_sp_bridge_vlan *bridge_vlan;
599 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
600 err = mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port,
603 goto err_port_bridge_vlan_learning_set;
608 err_port_bridge_vlan_learning_set:
609 list_for_each_entry_continue_reverse(bridge_vlan,
610 &bridge_port->vlans_list, list)
611 mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port,
616 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
617 struct switchdev_trans *trans,
618 struct net_device *orig_dev,
619 unsigned long brport_flags)
621 struct mlxsw_sp_bridge_port *bridge_port;
624 if (switchdev_trans_ph_prepare(trans))
627 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
632 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
633 MLXSW_SP_FLOOD_TYPE_UC,
634 brport_flags & BR_FLOOD);
638 err = mlxsw_sp_bridge_port_learning_set(mlxsw_sp_port, bridge_port,
639 brport_flags & BR_LEARNING);
643 memcpy(&bridge_port->flags, &brport_flags, sizeof(brport_flags));
648 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
650 char sfdat_pl[MLXSW_REG_SFDAT_LEN];
653 mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
654 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
657 mlxsw_sp->bridge->ageing_time = ageing_time;
661 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
662 struct switchdev_trans *trans,
663 unsigned long ageing_clock_t)
665 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
666 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
667 u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
669 if (switchdev_trans_ph_prepare(trans)) {
670 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
671 ageing_time > MLXSW_SP_MAX_AGEING_TIME)
677 return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
680 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
681 struct switchdev_trans *trans,
682 struct net_device *orig_dev,
685 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
686 struct mlxsw_sp_bridge_device *bridge_device;
688 if (!switchdev_trans_ph_prepare(trans))
691 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
692 if (WARN_ON(!bridge_device))
695 if (bridge_device->vlan_enabled == vlan_enabled)
698 netdev_err(bridge_device->dev, "VLAN filtering can't be changed for existing bridge\n");
702 static int mlxsw_sp_port_attr_mc_router_set(struct mlxsw_sp_port *mlxsw_sp_port,
703 struct switchdev_trans *trans,
704 struct net_device *orig_dev,
705 bool is_port_mc_router)
707 struct mlxsw_sp_bridge_port *bridge_port;
709 if (switchdev_trans_ph_prepare(trans))
712 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
717 if (!bridge_port->bridge_device->multicast_enabled)
720 return mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
721 MLXSW_SP_FLOOD_TYPE_MC,
725 static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port,
726 struct switchdev_trans *trans,
727 struct net_device *orig_dev,
730 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
731 struct mlxsw_sp_bridge_device *bridge_device;
732 struct mlxsw_sp_bridge_port *bridge_port;
735 if (switchdev_trans_ph_prepare(trans))
738 /* It's possible we failed to enslave the port, yet this
739 * operation is executed due to it being deferred.
741 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
745 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
746 enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC;
747 bool member = mc_disabled ? true : bridge_port->mrouter;
749 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port,
751 packet_type, member);
756 bridge_device->multicast_enabled = !mc_disabled;
761 static int mlxsw_sp_port_attr_set(struct net_device *dev,
762 const struct switchdev_attr *attr,
763 struct switchdev_trans *trans)
765 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
769 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
770 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
774 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
775 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
777 attr->u.brport_flags);
779 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
780 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
781 attr->u.ageing_time);
783 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
784 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
786 attr->u.vlan_filtering);
788 case SWITCHDEV_ATTR_ID_PORT_MROUTER:
789 err = mlxsw_sp_port_attr_mc_router_set(mlxsw_sp_port, trans,
793 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
794 err = mlxsw_sp_port_mc_disabled_set(mlxsw_sp_port, trans,
796 attr->u.mc_disabled);
806 static bool mlxsw_sp_mc_flood(const struct mlxsw_sp_bridge_port *bridge_port)
808 const struct mlxsw_sp_bridge_device *bridge_device;
810 bridge_device = bridge_port->bridge_device;
811 return !bridge_device->multicast_enabled ? true : bridge_port->mrouter;
815 mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
816 struct mlxsw_sp_bridge_port *bridge_port)
818 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
819 struct mlxsw_sp_bridge_device *bridge_device;
820 u8 local_port = mlxsw_sp_port->local_port;
821 u16 vid = mlxsw_sp_port_vlan->vid;
822 struct mlxsw_sp_fid *fid;
825 bridge_device = bridge_port->bridge_device;
826 fid = bridge_device->ops->fid_get(bridge_device, vid);
830 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port,
831 bridge_port->flags & BR_FLOOD);
833 goto err_fid_uc_flood_set;
835 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port,
836 mlxsw_sp_mc_flood(bridge_port));
838 goto err_fid_mc_flood_set;
840 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port,
843 goto err_fid_bc_flood_set;
845 err = mlxsw_sp_fid_port_vid_map(fid, mlxsw_sp_port, vid);
847 goto err_fid_port_vid_map;
849 mlxsw_sp_port_vlan->fid = fid;
853 err_fid_port_vid_map:
854 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false);
855 err_fid_bc_flood_set:
856 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false);
857 err_fid_mc_flood_set:
858 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false);
859 err_fid_uc_flood_set:
860 mlxsw_sp_fid_put(fid);
865 mlxsw_sp_port_vlan_fid_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
867 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
868 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
869 u8 local_port = mlxsw_sp_port->local_port;
870 u16 vid = mlxsw_sp_port_vlan->vid;
872 mlxsw_sp_port_vlan->fid = NULL;
873 mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid);
874 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false);
875 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false);
876 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false);
877 mlxsw_sp_fid_put(fid);
881 mlxsw_sp_port_pvid_determine(const struct mlxsw_sp_port *mlxsw_sp_port,
882 u16 vid, bool is_pvid)
886 else if (mlxsw_sp_port->pvid == vid)
887 return 0; /* Dis-allow untagged packets */
889 return mlxsw_sp_port->pvid;
893 mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
894 struct mlxsw_sp_bridge_port *bridge_port)
896 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
897 struct mlxsw_sp_bridge_vlan *bridge_vlan;
898 u16 vid = mlxsw_sp_port_vlan->vid;
901 /* No need to continue if only VLAN flags were changed */
902 if (mlxsw_sp_port_vlan->bridge_port)
905 err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port);
909 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid,
910 bridge_port->flags & BR_LEARNING);
912 goto err_port_vid_learning_set;
914 err = mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid,
915 bridge_port->stp_state);
917 goto err_port_vid_stp_set;
919 bridge_vlan = mlxsw_sp_bridge_vlan_get(bridge_port, vid);
922 goto err_bridge_vlan_get;
925 list_add(&mlxsw_sp_port_vlan->bridge_vlan_node,
926 &bridge_vlan->port_vlan_list);
928 mlxsw_sp_bridge_port_get(mlxsw_sp_port->mlxsw_sp->bridge,
930 mlxsw_sp_port_vlan->bridge_port = bridge_port;
935 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED);
936 err_port_vid_stp_set:
937 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false);
938 err_port_vid_learning_set:
939 mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan);
944 mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
946 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
947 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
948 struct mlxsw_sp_bridge_vlan *bridge_vlan;
949 struct mlxsw_sp_bridge_port *bridge_port;
950 u16 vid = mlxsw_sp_port_vlan->vid;
953 if (WARN_ON(mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021Q &&
954 mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021D))
957 bridge_port = mlxsw_sp_port_vlan->bridge_port;
958 bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
959 last = list_is_singular(&bridge_vlan->port_vlan_list);
961 list_del(&mlxsw_sp_port_vlan->bridge_vlan_node);
962 mlxsw_sp_bridge_vlan_put(bridge_vlan);
963 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED);
964 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false);
966 mlxsw_sp_bridge_port_fdb_flush(mlxsw_sp_port->mlxsw_sp,
968 mlxsw_sp_fid_index(fid));
969 mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan);
971 mlxsw_sp_bridge_port_put(mlxsw_sp_port->mlxsw_sp->bridge, bridge_port);
972 mlxsw_sp_port_vlan->bridge_port = NULL;
976 mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
977 struct mlxsw_sp_bridge_port *bridge_port,
978 u16 vid, bool is_untagged, bool is_pvid)
980 u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid);
981 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
982 u16 old_pvid = mlxsw_sp_port->pvid;
985 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, vid);
986 if (IS_ERR(mlxsw_sp_port_vlan))
987 return PTR_ERR(mlxsw_sp_port_vlan);
989 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true,
992 goto err_port_vlan_set;
994 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
996 goto err_port_pvid_set;
998 err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
1000 goto err_port_vlan_bridge_join;
1004 err_port_vlan_bridge_join:
1005 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
1007 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1009 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1013 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
1014 const struct switchdev_obj_port_vlan *vlan,
1015 struct switchdev_trans *trans)
1017 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1018 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1019 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1020 struct net_device *orig_dev = vlan->obj.orig_dev;
1021 struct mlxsw_sp_bridge_port *bridge_port;
1024 if (switchdev_trans_ph_prepare(trans))
1027 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1028 if (WARN_ON(!bridge_port))
1031 if (!bridge_port->bridge_device->vlan_enabled)
1034 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
1037 err = mlxsw_sp_bridge_port_vlan_add(mlxsw_sp_port, bridge_port,
1047 static enum mlxsw_reg_sfdf_flush_type mlxsw_sp_fdb_flush_type(bool lagged)
1049 return lagged ? MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID :
1050 MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID;
1054 mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
1055 struct mlxsw_sp_bridge_port *bridge_port,
1058 bool lagged = bridge_port->lagged;
1059 char sfdf_pl[MLXSW_REG_SFDF_LEN];
1062 system_port = lagged ? bridge_port->lag_id : bridge_port->system_port;
1063 mlxsw_reg_sfdf_pack(sfdf_pl, mlxsw_sp_fdb_flush_type(lagged));
1064 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid_index);
1065 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, system_port);
1067 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
1070 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
1072 return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
1073 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
1076 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
1078 return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
1079 MLXSW_REG_SFD_OP_WRITE_REMOVE;
1082 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1083 const char *mac, u16 fid, bool adding,
1084 enum mlxsw_reg_sfd_rec_action action,
1090 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1094 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1095 mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1096 mac, fid, action, local_port);
1097 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1103 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1104 const char *mac, u16 fid, bool adding,
1107 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
1108 MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
1111 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
1114 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
1115 MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
1119 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
1120 const char *mac, u16 fid, u16 lag_vid,
1121 bool adding, bool dynamic)
1126 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1130 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1131 mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1132 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
1134 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1141 mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port,
1142 struct switchdev_notifier_fdb_info *fdb_info, bool adding)
1144 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1145 struct net_device *orig_dev = fdb_info->info.dev;
1146 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1147 struct mlxsw_sp_bridge_device *bridge_device;
1148 struct mlxsw_sp_bridge_port *bridge_port;
1151 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1155 bridge_device = bridge_port->bridge_device;
1156 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1159 if (!mlxsw_sp_port_vlan)
1162 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1163 vid = mlxsw_sp_port_vlan->vid;
1165 if (!bridge_port->lagged)
1166 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp,
1167 bridge_port->system_port,
1168 fdb_info->addr, fid_index,
1171 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp,
1172 bridge_port->lag_id,
1173 fdb_info->addr, fid_index,
1174 vid, adding, false);
1177 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
1178 u16 fid, u16 mid, bool adding)
1183 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1187 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1188 mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
1189 MLXSW_REG_SFD_REC_ACTION_NOP, mid);
1190 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1195 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid,
1196 bool add, bool clear_all_ports)
1198 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1202 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1206 mlxsw_reg_smid_pack(smid_pl, mid, mlxsw_sp_port->local_port, add);
1207 if (clear_all_ports) {
1208 for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++)
1209 if (mlxsw_sp->ports[i])
1210 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
1212 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1217 static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp *mlxsw_sp,
1218 const unsigned char *addr,
1221 struct mlxsw_sp_mid *mid;
1223 list_for_each_entry(mid, &mlxsw_sp->bridge->mids_list, list) {
1224 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid)
1230 static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
1231 const unsigned char *addr,
1234 struct mlxsw_sp_mid *mid;
1237 mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap,
1239 if (mid_idx == MLXSW_SP_MID_MAX)
1242 mid = kzalloc(sizeof(*mid), GFP_KERNEL);
1246 set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap);
1247 ether_addr_copy(mid->addr, addr);
1251 list_add_tail(&mid->list, &mlxsw_sp->bridge->mids_list);
1256 static int __mlxsw_sp_mc_dec_ref(struct mlxsw_sp *mlxsw_sp,
1257 struct mlxsw_sp_mid *mid)
1259 if (--mid->ref_count == 0) {
1260 list_del(&mid->list);
1261 clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap);
1268 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
1269 const struct switchdev_obj_port_mdb *mdb,
1270 struct switchdev_trans *trans)
1272 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1273 struct net_device *orig_dev = mdb->obj.orig_dev;
1274 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1275 struct net_device *dev = mlxsw_sp_port->dev;
1276 struct mlxsw_sp_bridge_device *bridge_device;
1277 struct mlxsw_sp_bridge_port *bridge_port;
1278 struct mlxsw_sp_mid *mid;
1282 if (switchdev_trans_ph_prepare(trans))
1285 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1289 bridge_device = bridge_port->bridge_device;
1290 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1293 if (!mlxsw_sp_port_vlan)
1296 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1298 mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, fid_index);
1300 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, mdb->addr, fid_index);
1302 netdev_err(dev, "Unable to allocate MC group\n");
1308 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true,
1309 mid->ref_count == 1);
1311 netdev_err(dev, "Unable to set SMID\n");
1315 if (mid->ref_count == 1) {
1316 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid_index,
1319 netdev_err(dev, "Unable to set MC SFD\n");
1327 __mlxsw_sp_mc_dec_ref(mlxsw_sp, mid);
1331 static int mlxsw_sp_port_obj_add(struct net_device *dev,
1332 const struct switchdev_obj *obj,
1333 struct switchdev_trans *trans)
1335 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1339 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1340 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
1341 SWITCHDEV_OBJ_PORT_VLAN(obj),
1344 case SWITCHDEV_OBJ_ID_PORT_MDB:
1345 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
1346 SWITCHDEV_OBJ_PORT_MDB(obj),
1358 mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port,
1359 struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
1361 u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : vid;
1362 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1364 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1365 if (WARN_ON(!mlxsw_sp_port_vlan))
1368 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1369 mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
1370 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1371 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1374 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1375 const struct switchdev_obj_port_vlan *vlan)
1377 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1378 struct net_device *orig_dev = vlan->obj.orig_dev;
1379 struct mlxsw_sp_bridge_port *bridge_port;
1382 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1383 if (WARN_ON(!bridge_port))
1386 if (!bridge_port->bridge_device->vlan_enabled)
1389 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++)
1390 mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vid);
1395 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1396 const struct switchdev_obj_port_mdb *mdb)
1398 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1399 struct net_device *orig_dev = mdb->obj.orig_dev;
1400 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1401 struct mlxsw_sp_bridge_device *bridge_device;
1402 struct net_device *dev = mlxsw_sp_port->dev;
1403 struct mlxsw_sp_bridge_port *bridge_port;
1404 struct mlxsw_sp_mid *mid;
1409 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1413 bridge_device = bridge_port->bridge_device;
1414 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1417 if (!mlxsw_sp_port_vlan)
1420 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1422 mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, fid_index);
1424 netdev_err(dev, "Unable to remove port from MC DB\n");
1428 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false, false);
1430 netdev_err(dev, "Unable to remove port from SMID\n");
1433 if (__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid)) {
1434 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid_index,
1437 netdev_err(dev, "Unable to remove MC SFD\n");
1443 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1444 const struct switchdev_obj *obj)
1446 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1450 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1451 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1452 SWITCHDEV_OBJ_PORT_VLAN(obj));
1454 case SWITCHDEV_OBJ_ID_PORT_MDB:
1455 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1456 SWITCHDEV_OBJ_PORT_MDB(obj));
1466 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1469 struct mlxsw_sp_port *mlxsw_sp_port;
1470 u64 max_lag_members;
1473 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1475 for (i = 0; i < max_lag_members; i++) {
1476 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1478 return mlxsw_sp_port;
1483 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1484 .switchdev_port_attr_get = mlxsw_sp_port_attr_get,
1485 .switchdev_port_attr_set = mlxsw_sp_port_attr_set,
1486 .switchdev_port_obj_add = mlxsw_sp_port_obj_add,
1487 .switchdev_port_obj_del = mlxsw_sp_port_obj_del,
1491 mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1492 struct mlxsw_sp_bridge_port *bridge_port,
1493 struct mlxsw_sp_port *mlxsw_sp_port)
1495 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1497 if (is_vlan_dev(bridge_port->dev))
1500 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1);
1501 if (WARN_ON(!mlxsw_sp_port_vlan))
1504 /* Let VLAN-aware bridge take care of its own VLANs */
1505 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1511 mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1512 struct mlxsw_sp_bridge_port *bridge_port,
1513 struct mlxsw_sp_port *mlxsw_sp_port)
1515 mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
1516 /* Make sure untagged frames are allowed to ingress */
1517 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
1520 static struct mlxsw_sp_fid *
1521 mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1524 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1526 return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid);
1529 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = {
1530 .port_join = mlxsw_sp_bridge_8021q_port_join,
1531 .port_leave = mlxsw_sp_bridge_8021q_port_leave,
1532 .fid_get = mlxsw_sp_bridge_8021q_fid_get,
1536 mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port,
1537 const struct net_device *br_dev)
1539 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1541 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
1543 if (mlxsw_sp_port_vlan->bridge_port &&
1544 mlxsw_sp_port_vlan->bridge_port->bridge_device->dev ==
1553 mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1554 struct mlxsw_sp_bridge_port *bridge_port,
1555 struct mlxsw_sp_port *mlxsw_sp_port)
1557 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1560 if (!is_vlan_dev(bridge_port->dev))
1562 vid = vlan_dev_vlan_id(bridge_port->dev);
1564 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1565 if (WARN_ON(!mlxsw_sp_port_vlan))
1568 if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) {
1569 netdev_err(mlxsw_sp_port->dev, "Can't bridge VLAN uppers of the same port\n");
1573 /* Port is no longer usable as a router interface */
1574 if (mlxsw_sp_port_vlan->fid)
1575 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
1577 return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
1581 mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1582 struct mlxsw_sp_bridge_port *bridge_port,
1583 struct mlxsw_sp_port *mlxsw_sp_port)
1585 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1586 u16 vid = vlan_dev_vlan_id(bridge_port->dev);
1588 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1589 if (WARN_ON(!mlxsw_sp_port_vlan))
1592 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1595 static struct mlxsw_sp_fid *
1596 mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1599 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1601 return mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex);
1604 static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = {
1605 .port_join = mlxsw_sp_bridge_8021d_port_join,
1606 .port_leave = mlxsw_sp_bridge_8021d_port_leave,
1607 .fid_get = mlxsw_sp_bridge_8021d_fid_get,
1610 int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
1611 struct net_device *brport_dev,
1612 struct net_device *br_dev)
1614 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1615 struct mlxsw_sp_bridge_device *bridge_device;
1616 struct mlxsw_sp_bridge_port *bridge_port;
1619 bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev);
1620 if (IS_ERR(bridge_port))
1621 return PTR_ERR(bridge_port);
1622 bridge_device = bridge_port->bridge_device;
1624 err = bridge_device->ops->port_join(bridge_device, bridge_port,
1632 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
1636 void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
1637 struct net_device *brport_dev,
1638 struct net_device *br_dev)
1640 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1641 struct mlxsw_sp_bridge_device *bridge_device;
1642 struct mlxsw_sp_bridge_port *bridge_port;
1644 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
1647 bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
1651 bridge_device->ops->port_leave(bridge_device, bridge_port,
1653 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
1657 mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type,
1658 const char *mac, u16 vid,
1659 struct net_device *dev)
1661 struct switchdev_notifier_fdb_info info;
1665 call_switchdev_notifiers(type, dev, &info.info);
1668 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1669 char *sfn_pl, int rec_index,
1672 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1673 struct mlxsw_sp_bridge_device *bridge_device;
1674 struct mlxsw_sp_bridge_port *bridge_port;
1675 struct mlxsw_sp_port *mlxsw_sp_port;
1676 enum switchdev_notifier_type type;
1680 bool do_notification = true;
1683 mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1684 mlxsw_sp_port = mlxsw_sp->ports[local_port];
1685 if (!mlxsw_sp_port) {
1686 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1690 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
1691 if (!mlxsw_sp_port_vlan) {
1692 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
1696 bridge_port = mlxsw_sp_port_vlan->bridge_port;
1698 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
1702 bridge_device = bridge_port->bridge_device;
1703 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
1706 err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
1709 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
1713 if (!do_notification)
1715 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
1716 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
1722 do_notification = false;
1726 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
1727 char *sfn_pl, int rec_index,
1730 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1731 struct mlxsw_sp_bridge_device *bridge_device;
1732 struct mlxsw_sp_bridge_port *bridge_port;
1733 struct mlxsw_sp_port *mlxsw_sp_port;
1734 enum switchdev_notifier_type type;
1739 bool do_notification = true;
1742 mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1743 mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1744 if (!mlxsw_sp_port) {
1745 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1749 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
1750 if (!mlxsw_sp_port_vlan) {
1751 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
1755 bridge_port = mlxsw_sp_port_vlan->bridge_port;
1757 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
1761 bridge_device = bridge_port->bridge_device;
1762 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
1763 lag_vid = mlxsw_sp_port_vlan->vid;
1766 err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1769 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
1773 if (!do_notification)
1775 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
1776 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
1782 do_notification = false;
1786 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
1787 char *sfn_pl, int rec_index)
1789 switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
1790 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
1791 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1794 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
1795 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1798 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
1799 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1802 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
1803 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1809 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
1811 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
1813 mlxsw_core_schedule_dw(&bridge->fdb_notify.dw,
1814 msecs_to_jiffies(bridge->fdb_notify.interval));
1817 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
1819 struct mlxsw_sp_bridge *bridge;
1820 struct mlxsw_sp *mlxsw_sp;
1826 sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
1830 bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work);
1831 mlxsw_sp = bridge->mlxsw_sp;
1834 mlxsw_reg_sfn_pack(sfn_pl);
1835 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
1837 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
1840 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
1841 for (i = 0; i < num_rec; i++)
1842 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
1847 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1850 struct mlxsw_sp_switchdev_event_work {
1851 struct work_struct work;
1852 struct switchdev_notifier_fdb_info fdb_info;
1853 struct net_device *dev;
1854 unsigned long event;
1857 static void mlxsw_sp_switchdev_event_work(struct work_struct *work)
1859 struct mlxsw_sp_switchdev_event_work *switchdev_work =
1860 container_of(work, struct mlxsw_sp_switchdev_event_work, work);
1861 struct net_device *dev = switchdev_work->dev;
1862 struct switchdev_notifier_fdb_info *fdb_info;
1863 struct mlxsw_sp_port *mlxsw_sp_port;
1867 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
1871 switch (switchdev_work->event) {
1872 case SWITCHDEV_FDB_ADD_TO_DEVICE:
1873 fdb_info = &switchdev_work->fdb_info;
1874 err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true);
1877 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED,
1879 fdb_info->vid, dev);
1881 case SWITCHDEV_FDB_DEL_TO_DEVICE:
1882 fdb_info = &switchdev_work->fdb_info;
1883 mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false);
1889 kfree(switchdev_work->fdb_info.addr);
1890 kfree(switchdev_work);
1894 /* Called under rcu_read_lock() */
1895 static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
1896 unsigned long event, void *ptr)
1898 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
1899 struct mlxsw_sp_switchdev_event_work *switchdev_work;
1900 struct switchdev_notifier_fdb_info *fdb_info = ptr;
1902 if (!mlxsw_sp_port_dev_lower_find_rcu(dev))
1905 switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
1906 if (!switchdev_work)
1909 INIT_WORK(&switchdev_work->work, mlxsw_sp_switchdev_event_work);
1910 switchdev_work->dev = dev;
1911 switchdev_work->event = event;
1914 case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */
1915 case SWITCHDEV_FDB_DEL_TO_DEVICE:
1916 memcpy(&switchdev_work->fdb_info, ptr,
1917 sizeof(switchdev_work->fdb_info));
1918 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
1919 if (!switchdev_work->fdb_info.addr)
1920 goto err_addr_alloc;
1921 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
1923 /* Take a reference on the device. This can be either
1924 * upper device containig mlxsw_sp_port or just a
1930 kfree(switchdev_work);
1934 mlxsw_core_schedule_work(&switchdev_work->work);
1939 kfree(switchdev_work);
1943 static struct notifier_block mlxsw_sp_switchdev_notifier = {
1944 .notifier_call = mlxsw_sp_switchdev_event,
1947 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
1949 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
1952 err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
1954 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
1958 err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
1960 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n");
1964 INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
1965 bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
1966 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1970 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
1972 cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw);
1973 unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
1977 static void mlxsw_sp_mids_fini(struct mlxsw_sp *mlxsw_sp)
1979 struct mlxsw_sp_mid *mid, *tmp;
1981 list_for_each_entry_safe(mid, tmp, &mlxsw_sp->bridge->mids_list, list) {
1982 list_del(&mid->list);
1983 clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap);
1988 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
1990 struct mlxsw_sp_bridge *bridge;
1992 bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL);
1995 mlxsw_sp->bridge = bridge;
1996 bridge->mlxsw_sp = mlxsw_sp;
1998 INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list);
1999 INIT_LIST_HEAD(&mlxsw_sp->bridge->mids_list);
2001 bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops;
2002 bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops;
2004 return mlxsw_sp_fdb_init(mlxsw_sp);
2007 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
2009 mlxsw_sp_fdb_fini(mlxsw_sp);
2010 mlxsw_sp_mids_fini(mlxsw_sp);
2011 WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list));
2012 kfree(mlxsw_sp->bridge);
2015 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
2017 mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
2020 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)