1
2
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
19#include "spectrum_span.h"
20#include "spectrum_router.h"
21#include "spectrum_switchdev.h"
22#include "spectrum.h"
23#include "core.h"
24#include "reg.h"
25
26struct mlxsw_sp_bridge_ops;
27
28struct 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;
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};
45
46struct mlxsw_sp_bridge_device {
47 struct net_device *dev;
48 struct list_head list;
49 struct list_head ports_list;
50 struct list_head mids_list;
51 u8 vlan_enabled:1,
52 multicast_enabled:1,
53 mrouter:1;
54 const struct mlxsw_sp_bridge_ops *ops;
55};
56
57struct mlxsw_sp_bridge_port {
58 struct net_device *dev;
59 struct mlxsw_sp_bridge_device *bridge_device;
60 struct list_head list;
61 struct list_head vlans_list;
62 unsigned int ref_count;
63 u8 stp_state;
64 unsigned long flags;
65 bool mrouter;
66 bool lagged;
67 union {
68 u16 lag_id;
69 u16 system_port;
70 };
71};
72
73struct mlxsw_sp_bridge_vlan {
74 struct list_head list;
75 struct list_head port_vlan_list;
76 u16 vid;
77};
78
79struct mlxsw_sp_bridge_ops {
80 int (*port_join)(struct mlxsw_sp_bridge_device *bridge_device,
81 struct mlxsw_sp_bridge_port *bridge_port,
82 struct mlxsw_sp_port *mlxsw_sp_port,
83 struct netlink_ext_ack *extack);
84 void (*port_leave)(struct mlxsw_sp_bridge_device *bridge_device,
85 struct mlxsw_sp_bridge_port *bridge_port,
86 struct mlxsw_sp_port *mlxsw_sp_port);
87 struct mlxsw_sp_fid *
88 (*fid_get)(struct mlxsw_sp_bridge_device *bridge_device,
89 u16 vid);
90};
91
92static int
93mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
94 struct mlxsw_sp_bridge_port *bridge_port,
95 u16 fid_index);
96
97static void
98mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port,
99 struct mlxsw_sp_bridge_port *bridge_port);
100
101static void
102mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
103 struct mlxsw_sp_bridge_device
104 *bridge_device);
105
106static void
107mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port,
108 struct mlxsw_sp_bridge_port *bridge_port,
109 bool add);
110
111static struct mlxsw_sp_bridge_device *
112mlxsw_sp_bridge_device_find(const struct mlxsw_sp_bridge *bridge,
113 const struct net_device *br_dev)
114{
115 struct mlxsw_sp_bridge_device *bridge_device;
116
117 list_for_each_entry(bridge_device, &bridge->bridges_list, list)
118 if (bridge_device->dev == br_dev)
119 return bridge_device;
120
121 return NULL;
122}
123
124bool mlxsw_sp_bridge_device_is_offloaded(const struct mlxsw_sp *mlxsw_sp,
125 const struct net_device *br_dev)
126{
127 return !!mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
128}
129
130static int mlxsw_sp_bridge_device_upper_rif_destroy(struct net_device *dev,
131 void *data)
132{
133 struct mlxsw_sp *mlxsw_sp = data;
134
135 mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev);
136 return 0;
137}
138
139static void mlxsw_sp_bridge_device_rifs_destroy(struct mlxsw_sp *mlxsw_sp,
140 struct net_device *dev)
141{
142 mlxsw_sp_rif_destroy_by_dev(mlxsw_sp, dev);
143 netdev_walk_all_upper_dev_rcu(dev,
144 mlxsw_sp_bridge_device_upper_rif_destroy,
145 mlxsw_sp);
146}
147
148static struct mlxsw_sp_bridge_device *
149mlxsw_sp_bridge_device_create(struct mlxsw_sp_bridge *bridge,
150 struct net_device *br_dev)
151{
152 struct device *dev = bridge->mlxsw_sp->bus_info->dev;
153 struct mlxsw_sp_bridge_device *bridge_device;
154 bool vlan_enabled = br_vlan_enabled(br_dev);
155
156 if (vlan_enabled && bridge->vlan_enabled_exists) {
157 dev_err(dev, "Only one VLAN-aware bridge is supported\n");
158 return ERR_PTR(-EINVAL);
159 }
160
161 bridge_device = kzalloc(sizeof(*bridge_device), GFP_KERNEL);
162 if (!bridge_device)
163 return ERR_PTR(-ENOMEM);
164
165 bridge_device->dev = br_dev;
166 bridge_device->vlan_enabled = vlan_enabled;
167 bridge_device->multicast_enabled = br_multicast_enabled(br_dev);
168 bridge_device->mrouter = br_multicast_router(br_dev);
169 INIT_LIST_HEAD(&bridge_device->ports_list);
170 if (vlan_enabled) {
171 bridge->vlan_enabled_exists = true;
172 bridge_device->ops = bridge->bridge_8021q_ops;
173 } else {
174 bridge_device->ops = bridge->bridge_8021d_ops;
175 }
176 INIT_LIST_HEAD(&bridge_device->mids_list);
177 list_add(&bridge_device->list, &bridge->bridges_list);
178
179 return bridge_device;
180}
181
182static void
183mlxsw_sp_bridge_device_destroy(struct mlxsw_sp_bridge *bridge,
184 struct mlxsw_sp_bridge_device *bridge_device)
185{
186 mlxsw_sp_bridge_device_rifs_destroy(bridge->mlxsw_sp,
187 bridge_device->dev);
188 list_del(&bridge_device->list);
189 if (bridge_device->vlan_enabled)
190 bridge->vlan_enabled_exists = false;
191 WARN_ON(!list_empty(&bridge_device->ports_list));
192 WARN_ON(!list_empty(&bridge_device->mids_list));
193 kfree(bridge_device);
194}
195
196static struct mlxsw_sp_bridge_device *
197mlxsw_sp_bridge_device_get(struct mlxsw_sp_bridge *bridge,
198 struct net_device *br_dev)
199{
200 struct mlxsw_sp_bridge_device *bridge_device;
201
202 bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev);
203 if (bridge_device)
204 return bridge_device;
205
206 return mlxsw_sp_bridge_device_create(bridge, br_dev);
207}
208
209static void
210mlxsw_sp_bridge_device_put(struct mlxsw_sp_bridge *bridge,
211 struct mlxsw_sp_bridge_device *bridge_device)
212{
213 if (list_empty(&bridge_device->ports_list))
214 mlxsw_sp_bridge_device_destroy(bridge, bridge_device);
215}
216
217static struct mlxsw_sp_bridge_port *
218__mlxsw_sp_bridge_port_find(const struct mlxsw_sp_bridge_device *bridge_device,
219 const struct net_device *brport_dev)
220{
221 struct mlxsw_sp_bridge_port *bridge_port;
222
223 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
224 if (bridge_port->dev == brport_dev)
225 return bridge_port;
226 }
227
228 return NULL;
229}
230
231struct mlxsw_sp_bridge_port *
232mlxsw_sp_bridge_port_find(struct mlxsw_sp_bridge *bridge,
233 struct net_device *brport_dev)
234{
235 struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev);
236 struct mlxsw_sp_bridge_device *bridge_device;
237
238 if (!br_dev)
239 return NULL;
240
241 bridge_device = mlxsw_sp_bridge_device_find(bridge, br_dev);
242 if (!bridge_device)
243 return NULL;
244
245 return __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
246}
247
248static struct mlxsw_sp_bridge_port *
249mlxsw_sp_bridge_port_create(struct mlxsw_sp_bridge_device *bridge_device,
250 struct net_device *brport_dev)
251{
252 struct mlxsw_sp_bridge_port *bridge_port;
253 struct mlxsw_sp_port *mlxsw_sp_port;
254
255 bridge_port = kzalloc(sizeof(*bridge_port), GFP_KERNEL);
256 if (!bridge_port)
257 return NULL;
258
259 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(brport_dev);
260 bridge_port->lagged = mlxsw_sp_port->lagged;
261 if (bridge_port->lagged)
262 bridge_port->lag_id = mlxsw_sp_port->lag_id;
263 else
264 bridge_port->system_port = mlxsw_sp_port->local_port;
265 bridge_port->dev = brport_dev;
266 bridge_port->bridge_device = bridge_device;
267 bridge_port->stp_state = BR_STATE_DISABLED;
268 bridge_port->flags = BR_LEARNING | BR_FLOOD | BR_LEARNING_SYNC |
269 BR_MCAST_FLOOD;
270 INIT_LIST_HEAD(&bridge_port->vlans_list);
271 list_add(&bridge_port->list, &bridge_device->ports_list);
272 bridge_port->ref_count = 1;
273
274 return bridge_port;
275}
276
277static void
278mlxsw_sp_bridge_port_destroy(struct mlxsw_sp_bridge_port *bridge_port)
279{
280 list_del(&bridge_port->list);
281 WARN_ON(!list_empty(&bridge_port->vlans_list));
282 kfree(bridge_port);
283}
284
285static bool
286mlxsw_sp_bridge_port_should_destroy(const struct mlxsw_sp_bridge_port *
287 bridge_port)
288{
289 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_port->dev);
290
291
292
293
294
295 if (!mlxsw_sp && list_empty(&bridge_port->vlans_list))
296 return true;
297 else if (bridge_port->ref_count == 0)
298 return true;
299 else
300 return false;
301}
302
303static struct mlxsw_sp_bridge_port *
304mlxsw_sp_bridge_port_get(struct mlxsw_sp_bridge *bridge,
305 struct net_device *brport_dev)
306{
307 struct net_device *br_dev = netdev_master_upper_dev_get(brport_dev);
308 struct mlxsw_sp_bridge_device *bridge_device;
309 struct mlxsw_sp_bridge_port *bridge_port;
310 int err;
311
312 bridge_port = mlxsw_sp_bridge_port_find(bridge, brport_dev);
313 if (bridge_port) {
314 bridge_port->ref_count++;
315 return bridge_port;
316 }
317
318 bridge_device = mlxsw_sp_bridge_device_get(bridge, br_dev);
319 if (IS_ERR(bridge_device))
320 return ERR_CAST(bridge_device);
321
322 bridge_port = mlxsw_sp_bridge_port_create(bridge_device, brport_dev);
323 if (!bridge_port) {
324 err = -ENOMEM;
325 goto err_bridge_port_create;
326 }
327
328 return bridge_port;
329
330err_bridge_port_create:
331 mlxsw_sp_bridge_device_put(bridge, bridge_device);
332 return ERR_PTR(err);
333}
334
335static void mlxsw_sp_bridge_port_put(struct mlxsw_sp_bridge *bridge,
336 struct mlxsw_sp_bridge_port *bridge_port)
337{
338 struct mlxsw_sp_bridge_device *bridge_device;
339
340 bridge_port->ref_count--;
341 if (!mlxsw_sp_bridge_port_should_destroy(bridge_port))
342 return;
343 bridge_device = bridge_port->bridge_device;
344 mlxsw_sp_bridge_port_destroy(bridge_port);
345 mlxsw_sp_bridge_device_put(bridge, bridge_device);
346}
347
348static struct mlxsw_sp_port_vlan *
349mlxsw_sp_port_vlan_find_by_bridge(struct mlxsw_sp_port *mlxsw_sp_port,
350 const struct mlxsw_sp_bridge_device *
351 bridge_device,
352 u16 vid)
353{
354 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
355
356 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
357 list) {
358 if (!mlxsw_sp_port_vlan->bridge_port)
359 continue;
360 if (mlxsw_sp_port_vlan->bridge_port->bridge_device !=
361 bridge_device)
362 continue;
363 if (bridge_device->vlan_enabled &&
364 mlxsw_sp_port_vlan->vid != vid)
365 continue;
366 return mlxsw_sp_port_vlan;
367 }
368
369 return NULL;
370}
371
372static struct mlxsw_sp_port_vlan*
373mlxsw_sp_port_vlan_find_by_fid(struct mlxsw_sp_port *mlxsw_sp_port,
374 u16 fid_index)
375{
376 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
377
378 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
379 list) {
380 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
381
382 if (fid && mlxsw_sp_fid_index(fid) == fid_index)
383 return mlxsw_sp_port_vlan;
384 }
385
386 return NULL;
387}
388
389static struct mlxsw_sp_bridge_vlan *
390mlxsw_sp_bridge_vlan_find(const struct mlxsw_sp_bridge_port *bridge_port,
391 u16 vid)
392{
393 struct mlxsw_sp_bridge_vlan *bridge_vlan;
394
395 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
396 if (bridge_vlan->vid == vid)
397 return bridge_vlan;
398 }
399
400 return NULL;
401}
402
403static struct mlxsw_sp_bridge_vlan *
404mlxsw_sp_bridge_vlan_create(struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
405{
406 struct mlxsw_sp_bridge_vlan *bridge_vlan;
407
408 bridge_vlan = kzalloc(sizeof(*bridge_vlan), GFP_KERNEL);
409 if (!bridge_vlan)
410 return NULL;
411
412 INIT_LIST_HEAD(&bridge_vlan->port_vlan_list);
413 bridge_vlan->vid = vid;
414 list_add(&bridge_vlan->list, &bridge_port->vlans_list);
415
416 return bridge_vlan;
417}
418
419static void
420mlxsw_sp_bridge_vlan_destroy(struct mlxsw_sp_bridge_vlan *bridge_vlan)
421{
422 list_del(&bridge_vlan->list);
423 WARN_ON(!list_empty(&bridge_vlan->port_vlan_list));
424 kfree(bridge_vlan);
425}
426
427static struct mlxsw_sp_bridge_vlan *
428mlxsw_sp_bridge_vlan_get(struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
429{
430 struct mlxsw_sp_bridge_vlan *bridge_vlan;
431
432 bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
433 if (bridge_vlan)
434 return bridge_vlan;
435
436 return mlxsw_sp_bridge_vlan_create(bridge_port, vid);
437}
438
439static void mlxsw_sp_bridge_vlan_put(struct mlxsw_sp_bridge_vlan *bridge_vlan)
440{
441 if (list_empty(&bridge_vlan->port_vlan_list))
442 mlxsw_sp_bridge_vlan_destroy(bridge_vlan);
443}
444
445static void mlxsw_sp_port_bridge_flags_get(struct mlxsw_sp_bridge *bridge,
446 struct net_device *dev,
447 unsigned long *brport_flags)
448{
449 struct mlxsw_sp_bridge_port *bridge_port;
450
451 bridge_port = mlxsw_sp_bridge_port_find(bridge, dev);
452 if (WARN_ON(!bridge_port))
453 return;
454
455 memcpy(brport_flags, &bridge_port->flags, sizeof(*brport_flags));
456}
457
458static int mlxsw_sp_port_attr_get(struct net_device *dev,
459 struct switchdev_attr *attr)
460{
461 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
462 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
463
464 switch (attr->id) {
465 case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
466 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
467 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
468 attr->u.ppid.id_len);
469 break;
470 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
471 mlxsw_sp_port_bridge_flags_get(mlxsw_sp->bridge, attr->orig_dev,
472 &attr->u.brport_flags);
473 break;
474 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT:
475 attr->u.brport_flags_support = BR_LEARNING | BR_FLOOD |
476 BR_MCAST_FLOOD;
477 break;
478 default:
479 return -EOPNOTSUPP;
480 }
481
482 return 0;
483}
484
485static int
486mlxsw_sp_port_bridge_vlan_stp_set(struct mlxsw_sp_port *mlxsw_sp_port,
487 struct mlxsw_sp_bridge_vlan *bridge_vlan,
488 u8 state)
489{
490 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
491
492 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
493 bridge_vlan_node) {
494 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
495 continue;
496 return mlxsw_sp_port_vid_stp_set(mlxsw_sp_port,
497 bridge_vlan->vid, state);
498 }
499
500 return 0;
501}
502
503static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
504 struct switchdev_trans *trans,
505 struct net_device *orig_dev,
506 u8 state)
507{
508 struct mlxsw_sp_bridge_port *bridge_port;
509 struct mlxsw_sp_bridge_vlan *bridge_vlan;
510 int err;
511
512 if (switchdev_trans_ph_prepare(trans))
513 return 0;
514
515
516
517
518 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
519 orig_dev);
520 if (!bridge_port)
521 return 0;
522
523 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
524 err = mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port,
525 bridge_vlan, state);
526 if (err)
527 goto err_port_bridge_vlan_stp_set;
528 }
529
530 bridge_port->stp_state = state;
531
532 return 0;
533
534err_port_bridge_vlan_stp_set:
535 list_for_each_entry_continue_reverse(bridge_vlan,
536 &bridge_port->vlans_list, list)
537 mlxsw_sp_port_bridge_vlan_stp_set(mlxsw_sp_port, bridge_vlan,
538 bridge_port->stp_state);
539 return err;
540}
541
542static int
543mlxsw_sp_port_bridge_vlan_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
544 struct mlxsw_sp_bridge_vlan *bridge_vlan,
545 enum mlxsw_sp_flood_type packet_type,
546 bool member)
547{
548 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
549
550 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
551 bridge_vlan_node) {
552 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
553 continue;
554 return mlxsw_sp_fid_flood_set(mlxsw_sp_port_vlan->fid,
555 packet_type,
556 mlxsw_sp_port->local_port,
557 member);
558 }
559
560 return 0;
561}
562
563static int
564mlxsw_sp_bridge_port_flood_table_set(struct mlxsw_sp_port *mlxsw_sp_port,
565 struct mlxsw_sp_bridge_port *bridge_port,
566 enum mlxsw_sp_flood_type packet_type,
567 bool member)
568{
569 struct mlxsw_sp_bridge_vlan *bridge_vlan;
570 int err;
571
572 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
573 err = mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port,
574 bridge_vlan,
575 packet_type,
576 member);
577 if (err)
578 goto err_port_bridge_vlan_flood_set;
579 }
580
581 return 0;
582
583err_port_bridge_vlan_flood_set:
584 list_for_each_entry_continue_reverse(bridge_vlan,
585 &bridge_port->vlans_list, list)
586 mlxsw_sp_port_bridge_vlan_flood_set(mlxsw_sp_port, bridge_vlan,
587 packet_type, !member);
588 return err;
589}
590
591static int
592mlxsw_sp_port_bridge_vlan_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
593 struct mlxsw_sp_bridge_vlan *bridge_vlan,
594 bool set)
595{
596 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
597 u16 vid = bridge_vlan->vid;
598
599 list_for_each_entry(mlxsw_sp_port_vlan, &bridge_vlan->port_vlan_list,
600 bridge_vlan_node) {
601 if (mlxsw_sp_port_vlan->mlxsw_sp_port != mlxsw_sp_port)
602 continue;
603 return mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, set);
604 }
605
606 return 0;
607}
608
609static int
610mlxsw_sp_bridge_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
611 struct mlxsw_sp_bridge_port *bridge_port,
612 bool set)
613{
614 struct mlxsw_sp_bridge_vlan *bridge_vlan;
615 int err;
616
617 list_for_each_entry(bridge_vlan, &bridge_port->vlans_list, list) {
618 err = mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port,
619 bridge_vlan, set);
620 if (err)
621 goto err_port_bridge_vlan_learning_set;
622 }
623
624 return 0;
625
626err_port_bridge_vlan_learning_set:
627 list_for_each_entry_continue_reverse(bridge_vlan,
628 &bridge_port->vlans_list, list)
629 mlxsw_sp_port_bridge_vlan_learning_set(mlxsw_sp_port,
630 bridge_vlan, !set);
631 return err;
632}
633
634static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
635 struct switchdev_trans *trans,
636 struct net_device *orig_dev,
637 unsigned long brport_flags)
638{
639 struct mlxsw_sp_bridge_port *bridge_port;
640 int err;
641
642 if (switchdev_trans_ph_prepare(trans))
643 return 0;
644
645 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
646 orig_dev);
647 if (!bridge_port)
648 return 0;
649
650 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
651 MLXSW_SP_FLOOD_TYPE_UC,
652 brport_flags & BR_FLOOD);
653 if (err)
654 return err;
655
656 err = mlxsw_sp_bridge_port_learning_set(mlxsw_sp_port, bridge_port,
657 brport_flags & BR_LEARNING);
658 if (err)
659 return err;
660
661 if (bridge_port->bridge_device->multicast_enabled)
662 goto out;
663
664 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
665 MLXSW_SP_FLOOD_TYPE_MC,
666 brport_flags &
667 BR_MCAST_FLOOD);
668 if (err)
669 return err;
670
671out:
672 memcpy(&bridge_port->flags, &brport_flags, sizeof(brport_flags));
673 return 0;
674}
675
676static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
677{
678 char sfdat_pl[MLXSW_REG_SFDAT_LEN];
679 int err;
680
681 mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
682 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
683 if (err)
684 return err;
685 mlxsw_sp->bridge->ageing_time = ageing_time;
686 return 0;
687}
688
689static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
690 struct switchdev_trans *trans,
691 unsigned long ageing_clock_t)
692{
693 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
694 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
695 u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
696
697 if (switchdev_trans_ph_prepare(trans)) {
698 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
699 ageing_time > MLXSW_SP_MAX_AGEING_TIME)
700 return -ERANGE;
701 else
702 return 0;
703 }
704
705 return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
706}
707
708static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
709 struct switchdev_trans *trans,
710 struct net_device *orig_dev,
711 bool vlan_enabled)
712{
713 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
714 struct mlxsw_sp_bridge_device *bridge_device;
715
716 if (!switchdev_trans_ph_prepare(trans))
717 return 0;
718
719 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
720 if (WARN_ON(!bridge_device))
721 return -EINVAL;
722
723 if (bridge_device->vlan_enabled == vlan_enabled)
724 return 0;
725
726 netdev_err(bridge_device->dev, "VLAN filtering can't be changed for existing bridge\n");
727 return -EINVAL;
728}
729
730static int mlxsw_sp_port_attr_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port,
731 struct switchdev_trans *trans,
732 struct net_device *orig_dev,
733 bool is_port_mrouter)
734{
735 struct mlxsw_sp_bridge_port *bridge_port;
736 int err;
737
738 if (switchdev_trans_ph_prepare(trans))
739 return 0;
740
741 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp_port->mlxsw_sp->bridge,
742 orig_dev);
743 if (!bridge_port)
744 return 0;
745
746 if (!bridge_port->bridge_device->multicast_enabled)
747 goto out;
748
749 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port, bridge_port,
750 MLXSW_SP_FLOOD_TYPE_MC,
751 is_port_mrouter);
752 if (err)
753 return err;
754
755 mlxsw_sp_port_mrouter_update_mdb(mlxsw_sp_port, bridge_port,
756 is_port_mrouter);
757out:
758 bridge_port->mrouter = is_port_mrouter;
759 return 0;
760}
761
762static bool mlxsw_sp_mc_flood(const struct mlxsw_sp_bridge_port *bridge_port)
763{
764 const struct mlxsw_sp_bridge_device *bridge_device;
765
766 bridge_device = bridge_port->bridge_device;
767 return bridge_device->multicast_enabled ? bridge_port->mrouter :
768 bridge_port->flags & BR_MCAST_FLOOD;
769}
770
771static int mlxsw_sp_port_mc_disabled_set(struct mlxsw_sp_port *mlxsw_sp_port,
772 struct switchdev_trans *trans,
773 struct net_device *orig_dev,
774 bool mc_disabled)
775{
776 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
777 struct mlxsw_sp_bridge_device *bridge_device;
778 struct mlxsw_sp_bridge_port *bridge_port;
779 int err;
780
781 if (switchdev_trans_ph_prepare(trans))
782 return 0;
783
784
785
786
787 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
788 if (!bridge_device)
789 return 0;
790
791 if (bridge_device->multicast_enabled != !mc_disabled) {
792 bridge_device->multicast_enabled = !mc_disabled;
793 mlxsw_sp_bridge_mdb_mc_enable_sync(mlxsw_sp_port,
794 bridge_device);
795 }
796
797 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
798 enum mlxsw_sp_flood_type packet_type = MLXSW_SP_FLOOD_TYPE_MC;
799 bool member = mlxsw_sp_mc_flood(bridge_port);
800
801 err = mlxsw_sp_bridge_port_flood_table_set(mlxsw_sp_port,
802 bridge_port,
803 packet_type, member);
804 if (err)
805 return err;
806 }
807
808 bridge_device->multicast_enabled = !mc_disabled;
809
810 return 0;
811}
812
813static int mlxsw_sp_smid_router_port_set(struct mlxsw_sp *mlxsw_sp,
814 u16 mid_idx, bool add)
815{
816 char *smid_pl;
817 int err;
818
819 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
820 if (!smid_pl)
821 return -ENOMEM;
822
823 mlxsw_reg_smid_pack(smid_pl, mid_idx,
824 mlxsw_sp_router_port(mlxsw_sp), add);
825 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
826 kfree(smid_pl);
827 return err;
828}
829
830static void
831mlxsw_sp_bridge_mrouter_update_mdb(struct mlxsw_sp *mlxsw_sp,
832 struct mlxsw_sp_bridge_device *bridge_device,
833 bool add)
834{
835 struct mlxsw_sp_mid *mid;
836
837 list_for_each_entry(mid, &bridge_device->mids_list, list)
838 mlxsw_sp_smid_router_port_set(mlxsw_sp, mid->mid, add);
839}
840
841static int
842mlxsw_sp_port_attr_br_mrouter_set(struct mlxsw_sp_port *mlxsw_sp_port,
843 struct switchdev_trans *trans,
844 struct net_device *orig_dev,
845 bool is_mrouter)
846{
847 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
848 struct mlxsw_sp_bridge_device *bridge_device;
849
850 if (switchdev_trans_ph_prepare(trans))
851 return 0;
852
853
854
855
856 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, orig_dev);
857 if (!bridge_device)
858 return 0;
859
860 if (bridge_device->mrouter != is_mrouter)
861 mlxsw_sp_bridge_mrouter_update_mdb(mlxsw_sp, bridge_device,
862 is_mrouter);
863 bridge_device->mrouter = is_mrouter;
864 return 0;
865}
866
867static int mlxsw_sp_port_attr_set(struct net_device *dev,
868 const struct switchdev_attr *attr,
869 struct switchdev_trans *trans)
870{
871 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
872 int err;
873
874 switch (attr->id) {
875 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
876 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
877 attr->orig_dev,
878 attr->u.stp_state);
879 break;
880 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
881 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
882 attr->orig_dev,
883 attr->u.brport_flags);
884 break;
885 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
886 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
887 attr->u.ageing_time);
888 break;
889 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
890 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
891 attr->orig_dev,
892 attr->u.vlan_filtering);
893 break;
894 case SWITCHDEV_ATTR_ID_PORT_MROUTER:
895 err = mlxsw_sp_port_attr_mrouter_set(mlxsw_sp_port, trans,
896 attr->orig_dev,
897 attr->u.mrouter);
898 break;
899 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
900 err = mlxsw_sp_port_mc_disabled_set(mlxsw_sp_port, trans,
901 attr->orig_dev,
902 attr->u.mc_disabled);
903 break;
904 case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER:
905 err = mlxsw_sp_port_attr_br_mrouter_set(mlxsw_sp_port, trans,
906 attr->orig_dev,
907 attr->u.mrouter);
908 break;
909 default:
910 err = -EOPNOTSUPP;
911 break;
912 }
913
914 if (switchdev_trans_ph_commit(trans))
915 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp);
916
917 return err;
918}
919
920static int
921mlxsw_sp_port_vlan_fid_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
922 struct mlxsw_sp_bridge_port *bridge_port)
923{
924 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
925 struct mlxsw_sp_bridge_device *bridge_device;
926 u8 local_port = mlxsw_sp_port->local_port;
927 u16 vid = mlxsw_sp_port_vlan->vid;
928 struct mlxsw_sp_fid *fid;
929 int err;
930
931 bridge_device = bridge_port->bridge_device;
932 fid = bridge_device->ops->fid_get(bridge_device, vid);
933 if (IS_ERR(fid))
934 return PTR_ERR(fid);
935
936 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port,
937 bridge_port->flags & BR_FLOOD);
938 if (err)
939 goto err_fid_uc_flood_set;
940
941 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port,
942 mlxsw_sp_mc_flood(bridge_port));
943 if (err)
944 goto err_fid_mc_flood_set;
945
946 err = mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port,
947 true);
948 if (err)
949 goto err_fid_bc_flood_set;
950
951 err = mlxsw_sp_fid_port_vid_map(fid, mlxsw_sp_port, vid);
952 if (err)
953 goto err_fid_port_vid_map;
954
955 mlxsw_sp_port_vlan->fid = fid;
956
957 return 0;
958
959err_fid_port_vid_map:
960 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false);
961err_fid_bc_flood_set:
962 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false);
963err_fid_mc_flood_set:
964 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false);
965err_fid_uc_flood_set:
966 mlxsw_sp_fid_put(fid);
967 return err;
968}
969
970static void
971mlxsw_sp_port_vlan_fid_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
972{
973 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
974 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
975 u8 local_port = mlxsw_sp_port->local_port;
976 u16 vid = mlxsw_sp_port_vlan->vid;
977
978 mlxsw_sp_port_vlan->fid = NULL;
979 mlxsw_sp_fid_port_vid_unmap(fid, mlxsw_sp_port, vid);
980 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_BC, local_port, false);
981 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_MC, local_port, false);
982 mlxsw_sp_fid_flood_set(fid, MLXSW_SP_FLOOD_TYPE_UC, local_port, false);
983 mlxsw_sp_fid_put(fid);
984}
985
986static u16
987mlxsw_sp_port_pvid_determine(const struct mlxsw_sp_port *mlxsw_sp_port,
988 u16 vid, bool is_pvid)
989{
990 if (is_pvid)
991 return vid;
992 else if (mlxsw_sp_port->pvid == vid)
993 return 0;
994 else
995 return mlxsw_sp_port->pvid;
996}
997
998static int
999mlxsw_sp_port_vlan_bridge_join(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan,
1000 struct mlxsw_sp_bridge_port *bridge_port)
1001{
1002 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
1003 struct mlxsw_sp_bridge_vlan *bridge_vlan;
1004 u16 vid = mlxsw_sp_port_vlan->vid;
1005 int err;
1006
1007
1008 if (mlxsw_sp_port_vlan->bridge_port) {
1009 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1010 return 0;
1011 }
1012
1013 err = mlxsw_sp_port_vlan_fid_join(mlxsw_sp_port_vlan, bridge_port);
1014 if (err)
1015 return err;
1016
1017 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid,
1018 bridge_port->flags & BR_LEARNING);
1019 if (err)
1020 goto err_port_vid_learning_set;
1021
1022 err = mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid,
1023 bridge_port->stp_state);
1024 if (err)
1025 goto err_port_vid_stp_set;
1026
1027 bridge_vlan = mlxsw_sp_bridge_vlan_get(bridge_port, vid);
1028 if (!bridge_vlan) {
1029 err = -ENOMEM;
1030 goto err_bridge_vlan_get;
1031 }
1032
1033 list_add(&mlxsw_sp_port_vlan->bridge_vlan_node,
1034 &bridge_vlan->port_vlan_list);
1035
1036 mlxsw_sp_bridge_port_get(mlxsw_sp_port->mlxsw_sp->bridge,
1037 bridge_port->dev);
1038 mlxsw_sp_port_vlan->bridge_port = bridge_port;
1039
1040 return 0;
1041
1042err_bridge_vlan_get:
1043 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED);
1044err_port_vid_stp_set:
1045 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false);
1046err_port_vid_learning_set:
1047 mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan);
1048 return err;
1049}
1050
1051void
1052mlxsw_sp_port_vlan_bridge_leave(struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan)
1053{
1054 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp_port_vlan->mlxsw_sp_port;
1055 struct mlxsw_sp_fid *fid = mlxsw_sp_port_vlan->fid;
1056 struct mlxsw_sp_bridge_vlan *bridge_vlan;
1057 struct mlxsw_sp_bridge_port *bridge_port;
1058 u16 vid = mlxsw_sp_port_vlan->vid;
1059 bool last_port, last_vlan;
1060
1061 if (WARN_ON(mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021Q &&
1062 mlxsw_sp_fid_type(fid) != MLXSW_SP_FID_TYPE_8021D))
1063 return;
1064
1065 bridge_port = mlxsw_sp_port_vlan->bridge_port;
1066 last_vlan = list_is_singular(&bridge_port->vlans_list);
1067 bridge_vlan = mlxsw_sp_bridge_vlan_find(bridge_port, vid);
1068 last_port = list_is_singular(&bridge_vlan->port_vlan_list);
1069
1070 list_del(&mlxsw_sp_port_vlan->bridge_vlan_node);
1071 mlxsw_sp_bridge_vlan_put(bridge_vlan);
1072 mlxsw_sp_port_vid_stp_set(mlxsw_sp_port, vid, BR_STATE_DISABLED);
1073 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, false);
1074 if (last_port)
1075 mlxsw_sp_bridge_port_fdb_flush(mlxsw_sp_port->mlxsw_sp,
1076 bridge_port,
1077 mlxsw_sp_fid_index(fid));
1078 if (last_vlan)
1079 mlxsw_sp_bridge_port_mdb_flush(mlxsw_sp_port, bridge_port);
1080
1081 mlxsw_sp_port_vlan_fid_leave(mlxsw_sp_port_vlan);
1082
1083 mlxsw_sp_bridge_port_put(mlxsw_sp_port->mlxsw_sp->bridge, bridge_port);
1084 mlxsw_sp_port_vlan->bridge_port = NULL;
1085}
1086
1087static int
1088mlxsw_sp_bridge_port_vlan_add(struct mlxsw_sp_port *mlxsw_sp_port,
1089 struct mlxsw_sp_bridge_port *bridge_port,
1090 u16 vid, bool is_untagged, bool is_pvid)
1091{
1092 u16 pvid = mlxsw_sp_port_pvid_determine(mlxsw_sp_port, vid, is_pvid);
1093 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1094 u16 old_pvid = mlxsw_sp_port->pvid;
1095 int err;
1096
1097 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, vid);
1098 if (IS_ERR(mlxsw_sp_port_vlan))
1099 return PTR_ERR(mlxsw_sp_port_vlan);
1100
1101 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, true,
1102 is_untagged);
1103 if (err)
1104 goto err_port_vlan_set;
1105
1106 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
1107 if (err)
1108 goto err_port_pvid_set;
1109
1110 err = mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
1111 if (err)
1112 goto err_port_vlan_bridge_join;
1113
1114 return 0;
1115
1116err_port_vlan_bridge_join:
1117 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
1118err_port_pvid_set:
1119 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1120err_port_vlan_set:
1121 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1122 return err;
1123}
1124
1125static int
1126mlxsw_sp_br_ban_rif_pvid_change(struct mlxsw_sp *mlxsw_sp,
1127 const struct net_device *br_dev,
1128 const struct switchdev_obj_port_vlan *vlan)
1129{
1130 struct mlxsw_sp_rif *rif;
1131 struct mlxsw_sp_fid *fid;
1132 u16 pvid;
1133 u16 vid;
1134
1135 rif = mlxsw_sp_rif_find_by_dev(mlxsw_sp, br_dev);
1136 if (!rif)
1137 return 0;
1138 fid = mlxsw_sp_rif_fid(rif);
1139 pvid = mlxsw_sp_fid_8021q_vid(fid);
1140
1141 for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) {
1142 if (vlan->flags & BRIDGE_VLAN_INFO_PVID) {
1143 if (vid != pvid) {
1144 netdev_err(br_dev, "Can't change PVID, it's used by router interface\n");
1145 return -EBUSY;
1146 }
1147 } else {
1148 if (vid == pvid) {
1149 netdev_err(br_dev, "Can't remove PVID, it's used by router interface\n");
1150 return -EBUSY;
1151 }
1152 }
1153 }
1154
1155 return 0;
1156}
1157
1158static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
1159 const struct switchdev_obj_port_vlan *vlan,
1160 struct switchdev_trans *trans)
1161{
1162 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
1163 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
1164 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1165 struct net_device *orig_dev = vlan->obj.orig_dev;
1166 struct mlxsw_sp_bridge_port *bridge_port;
1167 u16 vid;
1168
1169 if (netif_is_bridge_master(orig_dev)) {
1170 int err = 0;
1171
1172 if ((vlan->flags & BRIDGE_VLAN_INFO_BRENTRY) &&
1173 br_vlan_enabled(orig_dev) &&
1174 switchdev_trans_ph_prepare(trans))
1175 err = mlxsw_sp_br_ban_rif_pvid_change(mlxsw_sp,
1176 orig_dev, vlan);
1177 if (!err)
1178 err = -EOPNOTSUPP;
1179 return err;
1180 }
1181
1182 if (switchdev_trans_ph_prepare(trans))
1183 return 0;
1184
1185 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1186 if (WARN_ON(!bridge_port))
1187 return -EINVAL;
1188
1189 if (!bridge_port->bridge_device->vlan_enabled)
1190 return 0;
1191
1192 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
1193 int err;
1194
1195 err = mlxsw_sp_bridge_port_vlan_add(mlxsw_sp_port, bridge_port,
1196 vid, flag_untagged,
1197 flag_pvid);
1198 if (err)
1199 return err;
1200 }
1201
1202 return 0;
1203}
1204
1205static enum mlxsw_reg_sfdf_flush_type mlxsw_sp_fdb_flush_type(bool lagged)
1206{
1207 return lagged ? MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID :
1208 MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID;
1209}
1210
1211static int
1212mlxsw_sp_bridge_port_fdb_flush(struct mlxsw_sp *mlxsw_sp,
1213 struct mlxsw_sp_bridge_port *bridge_port,
1214 u16 fid_index)
1215{
1216 bool lagged = bridge_port->lagged;
1217 char sfdf_pl[MLXSW_REG_SFDF_LEN];
1218 u16 system_port;
1219
1220 system_port = lagged ? bridge_port->lag_id : bridge_port->system_port;
1221 mlxsw_reg_sfdf_pack(sfdf_pl, mlxsw_sp_fdb_flush_type(lagged));
1222 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid_index);
1223 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, system_port);
1224
1225 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
1226}
1227
1228static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
1229{
1230 return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
1231 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
1232}
1233
1234static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
1235{
1236 return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
1237 MLXSW_REG_SFD_OP_WRITE_REMOVE;
1238}
1239
1240static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1241 const char *mac, u16 fid, bool adding,
1242 enum mlxsw_reg_sfd_rec_action action,
1243 bool dynamic)
1244{
1245 char *sfd_pl;
1246 u8 num_rec;
1247 int err;
1248
1249 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1250 if (!sfd_pl)
1251 return -ENOMEM;
1252
1253 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1254 mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1255 mac, fid, action, local_port);
1256 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1257 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1258 if (err)
1259 goto out;
1260
1261 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
1262 err = -EBUSY;
1263
1264out:
1265 kfree(sfd_pl);
1266 return err;
1267}
1268
1269static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
1270 const char *mac, u16 fid, bool adding,
1271 bool dynamic)
1272{
1273 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
1274 MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
1275}
1276
1277int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
1278 bool adding)
1279{
1280 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
1281 MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
1282 false);
1283}
1284
1285static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
1286 const char *mac, u16 fid, u16 lag_vid,
1287 bool adding, bool dynamic)
1288{
1289 char *sfd_pl;
1290 u8 num_rec;
1291 int err;
1292
1293 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1294 if (!sfd_pl)
1295 return -ENOMEM;
1296
1297 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1298 mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
1299 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
1300 lag_vid, lag_id);
1301 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1302 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1303 if (err)
1304 goto out;
1305
1306 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
1307 err = -EBUSY;
1308
1309out:
1310 kfree(sfd_pl);
1311 return err;
1312}
1313
1314static int
1315mlxsw_sp_port_fdb_set(struct mlxsw_sp_port *mlxsw_sp_port,
1316 struct switchdev_notifier_fdb_info *fdb_info, bool adding)
1317{
1318 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1319 struct net_device *orig_dev = fdb_info->info.dev;
1320 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1321 struct mlxsw_sp_bridge_device *bridge_device;
1322 struct mlxsw_sp_bridge_port *bridge_port;
1323 u16 fid_index, vid;
1324
1325 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1326 if (!bridge_port)
1327 return -EINVAL;
1328
1329 bridge_device = bridge_port->bridge_device;
1330 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1331 bridge_device,
1332 fdb_info->vid);
1333 if (!mlxsw_sp_port_vlan)
1334 return 0;
1335
1336 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1337 vid = mlxsw_sp_port_vlan->vid;
1338
1339 if (!bridge_port->lagged)
1340 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp,
1341 bridge_port->system_port,
1342 fdb_info->addr, fid_index,
1343 adding, false);
1344 else
1345 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp,
1346 bridge_port->lag_id,
1347 fdb_info->addr, fid_index,
1348 vid, adding, false);
1349}
1350
1351static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
1352 u16 fid, u16 mid_idx, bool adding)
1353{
1354 char *sfd_pl;
1355 u8 num_rec;
1356 int err;
1357
1358 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1359 if (!sfd_pl)
1360 return -ENOMEM;
1361
1362 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
1363 mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
1364 MLXSW_REG_SFD_REC_ACTION_NOP, mid_idx);
1365 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1366 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1367 if (err)
1368 goto out;
1369
1370 if (num_rec != mlxsw_reg_sfd_num_rec_get(sfd_pl))
1371 err = -EBUSY;
1372
1373out:
1374 kfree(sfd_pl);
1375 return err;
1376}
1377
1378static int mlxsw_sp_port_smid_full_entry(struct mlxsw_sp *mlxsw_sp, u16 mid_idx,
1379 long *ports_bitmap,
1380 bool set_router_port)
1381{
1382 char *smid_pl;
1383 int err, i;
1384
1385 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1386 if (!smid_pl)
1387 return -ENOMEM;
1388
1389 mlxsw_reg_smid_pack(smid_pl, mid_idx, 0, false);
1390 for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) {
1391 if (mlxsw_sp->ports[i])
1392 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
1393 }
1394
1395 mlxsw_reg_smid_port_mask_set(smid_pl,
1396 mlxsw_sp_router_port(mlxsw_sp), 1);
1397
1398 for_each_set_bit(i, ports_bitmap, mlxsw_core_max_ports(mlxsw_sp->core))
1399 mlxsw_reg_smid_port_set(smid_pl, i, 1);
1400
1401 mlxsw_reg_smid_port_set(smid_pl, mlxsw_sp_router_port(mlxsw_sp),
1402 set_router_port);
1403
1404 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1405 kfree(smid_pl);
1406 return err;
1407}
1408
1409static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port,
1410 u16 mid_idx, bool add)
1411{
1412 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1413 char *smid_pl;
1414 int err;
1415
1416 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
1417 if (!smid_pl)
1418 return -ENOMEM;
1419
1420 mlxsw_reg_smid_pack(smid_pl, mid_idx, mlxsw_sp_port->local_port, add);
1421 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
1422 kfree(smid_pl);
1423 return err;
1424}
1425
1426static struct
1427mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp_bridge_device *bridge_device,
1428 const unsigned char *addr,
1429 u16 fid)
1430{
1431 struct mlxsw_sp_mid *mid;
1432
1433 list_for_each_entry(mid, &bridge_device->mids_list, list) {
1434 if (ether_addr_equal(mid->addr, addr) && mid->fid == fid)
1435 return mid;
1436 }
1437 return NULL;
1438}
1439
1440static void
1441mlxsw_sp_bridge_port_get_ports_bitmap(struct mlxsw_sp *mlxsw_sp,
1442 struct mlxsw_sp_bridge_port *bridge_port,
1443 unsigned long *ports_bitmap)
1444{
1445 struct mlxsw_sp_port *mlxsw_sp_port;
1446 u64 max_lag_members, i;
1447 int lag_id;
1448
1449 if (!bridge_port->lagged) {
1450 set_bit(bridge_port->system_port, ports_bitmap);
1451 } else {
1452 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1453 MAX_LAG_MEMBERS);
1454 lag_id = bridge_port->lag_id;
1455 for (i = 0; i < max_lag_members; i++) {
1456 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp,
1457 lag_id, i);
1458 if (mlxsw_sp_port)
1459 set_bit(mlxsw_sp_port->local_port,
1460 ports_bitmap);
1461 }
1462 }
1463}
1464
1465static void
1466mlxsw_sp_mc_get_mrouters_bitmap(unsigned long *flood_bitmap,
1467 struct mlxsw_sp_bridge_device *bridge_device,
1468 struct mlxsw_sp *mlxsw_sp)
1469{
1470 struct mlxsw_sp_bridge_port *bridge_port;
1471
1472 list_for_each_entry(bridge_port, &bridge_device->ports_list, list) {
1473 if (bridge_port->mrouter) {
1474 mlxsw_sp_bridge_port_get_ports_bitmap(mlxsw_sp,
1475 bridge_port,
1476 flood_bitmap);
1477 }
1478 }
1479}
1480
1481static bool
1482mlxsw_sp_mc_write_mdb_entry(struct mlxsw_sp *mlxsw_sp,
1483 struct mlxsw_sp_mid *mid,
1484 struct mlxsw_sp_bridge_device *bridge_device)
1485{
1486 long *flood_bitmap;
1487 int num_of_ports;
1488 int alloc_size;
1489 u16 mid_idx;
1490 int err;
1491
1492 mid_idx = find_first_zero_bit(mlxsw_sp->bridge->mids_bitmap,
1493 MLXSW_SP_MID_MAX);
1494 if (mid_idx == MLXSW_SP_MID_MAX)
1495 return false;
1496
1497 num_of_ports = mlxsw_core_max_ports(mlxsw_sp->core);
1498 alloc_size = sizeof(long) * BITS_TO_LONGS(num_of_ports);
1499 flood_bitmap = kzalloc(alloc_size, GFP_KERNEL);
1500 if (!flood_bitmap)
1501 return false;
1502
1503 bitmap_copy(flood_bitmap, mid->ports_in_mid, num_of_ports);
1504 mlxsw_sp_mc_get_mrouters_bitmap(flood_bitmap, bridge_device, mlxsw_sp);
1505
1506 mid->mid = mid_idx;
1507 err = mlxsw_sp_port_smid_full_entry(mlxsw_sp, mid_idx, flood_bitmap,
1508 bridge_device->mrouter);
1509 kfree(flood_bitmap);
1510 if (err)
1511 return false;
1512
1513 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid_idx,
1514 true);
1515 if (err)
1516 return false;
1517
1518 set_bit(mid_idx, mlxsw_sp->bridge->mids_bitmap);
1519 mid->in_hw = true;
1520 return true;
1521}
1522
1523static int mlxsw_sp_mc_remove_mdb_entry(struct mlxsw_sp *mlxsw_sp,
1524 struct mlxsw_sp_mid *mid)
1525{
1526 if (!mid->in_hw)
1527 return 0;
1528
1529 clear_bit(mid->mid, mlxsw_sp->bridge->mids_bitmap);
1530 mid->in_hw = false;
1531 return mlxsw_sp_port_mdb_op(mlxsw_sp, mid->addr, mid->fid, mid->mid,
1532 false);
1533}
1534
1535static struct
1536mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
1537 struct mlxsw_sp_bridge_device *bridge_device,
1538 const unsigned char *addr,
1539 u16 fid)
1540{
1541 struct mlxsw_sp_mid *mid;
1542 size_t alloc_size;
1543
1544 mid = kzalloc(sizeof(*mid), GFP_KERNEL);
1545 if (!mid)
1546 return NULL;
1547
1548 alloc_size = sizeof(unsigned long) *
1549 BITS_TO_LONGS(mlxsw_core_max_ports(mlxsw_sp->core));
1550
1551 mid->ports_in_mid = kzalloc(alloc_size, GFP_KERNEL);
1552 if (!mid->ports_in_mid)
1553 goto err_ports_in_mid_alloc;
1554
1555 ether_addr_copy(mid->addr, addr);
1556 mid->fid = fid;
1557 mid->in_hw = false;
1558
1559 if (!bridge_device->multicast_enabled)
1560 goto out;
1561
1562 if (!mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid, bridge_device))
1563 goto err_write_mdb_entry;
1564
1565out:
1566 list_add_tail(&mid->list, &bridge_device->mids_list);
1567 return mid;
1568
1569err_write_mdb_entry:
1570 kfree(mid->ports_in_mid);
1571err_ports_in_mid_alloc:
1572 kfree(mid);
1573 return NULL;
1574}
1575
1576static int mlxsw_sp_port_remove_from_mid(struct mlxsw_sp_port *mlxsw_sp_port,
1577 struct mlxsw_sp_mid *mid)
1578{
1579 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1580 int err = 0;
1581
1582 clear_bit(mlxsw_sp_port->local_port, mid->ports_in_mid);
1583 if (bitmap_empty(mid->ports_in_mid,
1584 mlxsw_core_max_ports(mlxsw_sp->core))) {
1585 err = mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
1586 list_del(&mid->list);
1587 kfree(mid->ports_in_mid);
1588 kfree(mid);
1589 }
1590 return err;
1591}
1592
1593static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
1594 const struct switchdev_obj_port_mdb *mdb,
1595 struct switchdev_trans *trans)
1596{
1597 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1598 struct net_device *orig_dev = mdb->obj.orig_dev;
1599 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1600 struct net_device *dev = mlxsw_sp_port->dev;
1601 struct mlxsw_sp_bridge_device *bridge_device;
1602 struct mlxsw_sp_bridge_port *bridge_port;
1603 struct mlxsw_sp_mid *mid;
1604 u16 fid_index;
1605 int err = 0;
1606
1607 if (switchdev_trans_ph_prepare(trans))
1608 return 0;
1609
1610 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1611 if (!bridge_port)
1612 return 0;
1613
1614 bridge_device = bridge_port->bridge_device;
1615 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1616 bridge_device,
1617 mdb->vid);
1618 if (!mlxsw_sp_port_vlan)
1619 return 0;
1620
1621 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1622
1623 mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index);
1624 if (!mid) {
1625 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, bridge_device, mdb->addr,
1626 fid_index);
1627 if (!mid) {
1628 netdev_err(dev, "Unable to allocate MC group\n");
1629 return -ENOMEM;
1630 }
1631 }
1632 set_bit(mlxsw_sp_port->local_port, mid->ports_in_mid);
1633
1634 if (!bridge_device->multicast_enabled)
1635 return 0;
1636
1637 if (bridge_port->mrouter)
1638 return 0;
1639
1640 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true);
1641 if (err) {
1642 netdev_err(dev, "Unable to set SMID\n");
1643 goto err_out;
1644 }
1645
1646 return 0;
1647
1648err_out:
1649 mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
1650 return err;
1651}
1652
1653static void
1654mlxsw_sp_bridge_mdb_mc_enable_sync(struct mlxsw_sp_port *mlxsw_sp_port,
1655 struct mlxsw_sp_bridge_device
1656 *bridge_device)
1657{
1658 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1659 struct mlxsw_sp_mid *mid;
1660 bool mc_enabled;
1661
1662 mc_enabled = bridge_device->multicast_enabled;
1663
1664 list_for_each_entry(mid, &bridge_device->mids_list, list) {
1665 if (mc_enabled)
1666 mlxsw_sp_mc_write_mdb_entry(mlxsw_sp, mid,
1667 bridge_device);
1668 else
1669 mlxsw_sp_mc_remove_mdb_entry(mlxsw_sp, mid);
1670 }
1671}
1672
1673static void
1674mlxsw_sp_port_mrouter_update_mdb(struct mlxsw_sp_port *mlxsw_sp_port,
1675 struct mlxsw_sp_bridge_port *bridge_port,
1676 bool add)
1677{
1678 struct mlxsw_sp_bridge_device *bridge_device;
1679 struct mlxsw_sp_mid *mid;
1680
1681 bridge_device = bridge_port->bridge_device;
1682
1683 list_for_each_entry(mid, &bridge_device->mids_list, list) {
1684 if (!test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid))
1685 mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, add);
1686 }
1687}
1688
1689struct mlxsw_sp_span_respin_work {
1690 struct work_struct work;
1691 struct mlxsw_sp *mlxsw_sp;
1692};
1693
1694static void mlxsw_sp_span_respin_work(struct work_struct *work)
1695{
1696 struct mlxsw_sp_span_respin_work *respin_work =
1697 container_of(work, struct mlxsw_sp_span_respin_work, work);
1698
1699 rtnl_lock();
1700 mlxsw_sp_span_respin(respin_work->mlxsw_sp);
1701 rtnl_unlock();
1702 kfree(respin_work);
1703}
1704
1705static void mlxsw_sp_span_respin_schedule(struct mlxsw_sp *mlxsw_sp)
1706{
1707 struct mlxsw_sp_span_respin_work *respin_work;
1708
1709 respin_work = kzalloc(sizeof(*respin_work), GFP_ATOMIC);
1710 if (!respin_work)
1711 return;
1712
1713 INIT_WORK(&respin_work->work, mlxsw_sp_span_respin_work);
1714 respin_work->mlxsw_sp = mlxsw_sp;
1715
1716 mlxsw_core_schedule_work(&respin_work->work);
1717}
1718
1719static int mlxsw_sp_port_obj_add(struct net_device *dev,
1720 const struct switchdev_obj *obj,
1721 struct switchdev_trans *trans)
1722{
1723 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1724 const struct switchdev_obj_port_vlan *vlan;
1725 int err = 0;
1726
1727 switch (obj->id) {
1728 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1729 vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
1730 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port, vlan, trans);
1731
1732 if (switchdev_trans_ph_prepare(trans)) {
1733
1734
1735
1736
1737
1738 mlxsw_sp_span_respin_schedule(mlxsw_sp_port->mlxsw_sp);
1739 }
1740 break;
1741 case SWITCHDEV_OBJ_ID_PORT_MDB:
1742 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
1743 SWITCHDEV_OBJ_PORT_MDB(obj),
1744 trans);
1745 break;
1746 default:
1747 err = -EOPNOTSUPP;
1748 break;
1749 }
1750
1751 return err;
1752}
1753
1754static void
1755mlxsw_sp_bridge_port_vlan_del(struct mlxsw_sp_port *mlxsw_sp_port,
1756 struct mlxsw_sp_bridge_port *bridge_port, u16 vid)
1757{
1758 u16 pvid = mlxsw_sp_port->pvid == vid ? 0 : vid;
1759 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1760
1761 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1762 if (WARN_ON(!mlxsw_sp_port_vlan))
1763 return;
1764
1765 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
1766 mlxsw_sp_port_pvid_set(mlxsw_sp_port, pvid);
1767 mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid, false, false);
1768 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1769}
1770
1771static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1772 const struct switchdev_obj_port_vlan *vlan)
1773{
1774 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1775 struct net_device *orig_dev = vlan->obj.orig_dev;
1776 struct mlxsw_sp_bridge_port *bridge_port;
1777 u16 vid;
1778
1779 if (netif_is_bridge_master(orig_dev))
1780 return -EOPNOTSUPP;
1781
1782 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1783 if (WARN_ON(!bridge_port))
1784 return -EINVAL;
1785
1786 if (!bridge_port->bridge_device->vlan_enabled)
1787 return 0;
1788
1789 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++)
1790 mlxsw_sp_bridge_port_vlan_del(mlxsw_sp_port, bridge_port, vid);
1791
1792 return 0;
1793}
1794
1795static int
1796__mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1797 struct mlxsw_sp_bridge_port *bridge_port,
1798 struct mlxsw_sp_mid *mid)
1799{
1800 struct net_device *dev = mlxsw_sp_port->dev;
1801 int err;
1802
1803 if (bridge_port->bridge_device->multicast_enabled &&
1804 !bridge_port->mrouter) {
1805 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false);
1806 if (err)
1807 netdev_err(dev, "Unable to remove port from SMID\n");
1808 }
1809
1810 err = mlxsw_sp_port_remove_from_mid(mlxsw_sp_port, mid);
1811 if (err)
1812 netdev_err(dev, "Unable to remove MC SFD\n");
1813
1814 return err;
1815}
1816
1817static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1818 const struct switchdev_obj_port_mdb *mdb)
1819{
1820 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1821 struct net_device *orig_dev = mdb->obj.orig_dev;
1822 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1823 struct mlxsw_sp_bridge_device *bridge_device;
1824 struct net_device *dev = mlxsw_sp_port->dev;
1825 struct mlxsw_sp_bridge_port *bridge_port;
1826 struct mlxsw_sp_mid *mid;
1827 u16 fid_index;
1828
1829 bridge_port = mlxsw_sp_bridge_port_find(mlxsw_sp->bridge, orig_dev);
1830 if (!bridge_port)
1831 return 0;
1832
1833 bridge_device = bridge_port->bridge_device;
1834 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_bridge(mlxsw_sp_port,
1835 bridge_device,
1836 mdb->vid);
1837 if (!mlxsw_sp_port_vlan)
1838 return 0;
1839
1840 fid_index = mlxsw_sp_fid_index(mlxsw_sp_port_vlan->fid);
1841
1842 mid = __mlxsw_sp_mc_get(bridge_device, mdb->addr, fid_index);
1843 if (!mid) {
1844 netdev_err(dev, "Unable to remove port from MC DB\n");
1845 return -EINVAL;
1846 }
1847
1848 return __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port, mid);
1849}
1850
1851static void
1852mlxsw_sp_bridge_port_mdb_flush(struct mlxsw_sp_port *mlxsw_sp_port,
1853 struct mlxsw_sp_bridge_port *bridge_port)
1854{
1855 struct mlxsw_sp_bridge_device *bridge_device;
1856 struct mlxsw_sp_mid *mid, *tmp;
1857
1858 bridge_device = bridge_port->bridge_device;
1859
1860 list_for_each_entry_safe(mid, tmp, &bridge_device->mids_list, list) {
1861 if (test_bit(mlxsw_sp_port->local_port, mid->ports_in_mid)) {
1862 __mlxsw_sp_port_mdb_del(mlxsw_sp_port, bridge_port,
1863 mid);
1864 } else if (bridge_device->multicast_enabled &&
1865 bridge_port->mrouter) {
1866 mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false);
1867 }
1868 }
1869}
1870
1871static int mlxsw_sp_port_obj_del(struct net_device *dev,
1872 const struct switchdev_obj *obj)
1873{
1874 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1875 int err = 0;
1876
1877 switch (obj->id) {
1878 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1879 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1880 SWITCHDEV_OBJ_PORT_VLAN(obj));
1881 break;
1882 case SWITCHDEV_OBJ_ID_PORT_MDB:
1883 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1884 SWITCHDEV_OBJ_PORT_MDB(obj));
1885 break;
1886 default:
1887 err = -EOPNOTSUPP;
1888 break;
1889 }
1890
1891 mlxsw_sp_span_respin_schedule(mlxsw_sp_port->mlxsw_sp);
1892
1893 return err;
1894}
1895
1896static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1897 u16 lag_id)
1898{
1899 struct mlxsw_sp_port *mlxsw_sp_port;
1900 u64 max_lag_members;
1901 int i;
1902
1903 max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core,
1904 MAX_LAG_MEMBERS);
1905 for (i = 0; i < max_lag_members; i++) {
1906 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1907 if (mlxsw_sp_port)
1908 return mlxsw_sp_port;
1909 }
1910 return NULL;
1911}
1912
1913static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1914 .switchdev_port_attr_get = mlxsw_sp_port_attr_get,
1915 .switchdev_port_attr_set = mlxsw_sp_port_attr_set,
1916 .switchdev_port_obj_add = mlxsw_sp_port_obj_add,
1917 .switchdev_port_obj_del = mlxsw_sp_port_obj_del,
1918};
1919
1920static int
1921mlxsw_sp_bridge_8021q_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1922 struct mlxsw_sp_bridge_port *bridge_port,
1923 struct mlxsw_sp_port *mlxsw_sp_port,
1924 struct netlink_ext_ack *extack)
1925{
1926 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1927
1928 if (is_vlan_dev(bridge_port->dev)) {
1929 NL_SET_ERR_MSG_MOD(extack, "Can not enslave a VLAN device to a VLAN-aware bridge");
1930 return -EINVAL;
1931 }
1932
1933 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, 1);
1934 if (WARN_ON(!mlxsw_sp_port_vlan))
1935 return -EINVAL;
1936
1937
1938 mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan);
1939
1940 return 0;
1941}
1942
1943static void
1944mlxsw_sp_bridge_8021q_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
1945 struct mlxsw_sp_bridge_port *bridge_port,
1946 struct mlxsw_sp_port *mlxsw_sp_port)
1947{
1948 mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1);
1949
1950 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
1951}
1952
1953static struct mlxsw_sp_fid *
1954mlxsw_sp_bridge_8021q_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
1955 u16 vid)
1956{
1957 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
1958
1959 return mlxsw_sp_fid_8021q_get(mlxsw_sp, vid);
1960}
1961
1962static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021q_ops = {
1963 .port_join = mlxsw_sp_bridge_8021q_port_join,
1964 .port_leave = mlxsw_sp_bridge_8021q_port_leave,
1965 .fid_get = mlxsw_sp_bridge_8021q_fid_get,
1966};
1967
1968static bool
1969mlxsw_sp_port_is_br_member(const struct mlxsw_sp_port *mlxsw_sp_port,
1970 const struct net_device *br_dev)
1971{
1972 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1973
1974 list_for_each_entry(mlxsw_sp_port_vlan, &mlxsw_sp_port->vlans_list,
1975 list) {
1976 if (mlxsw_sp_port_vlan->bridge_port &&
1977 mlxsw_sp_port_vlan->bridge_port->bridge_device->dev ==
1978 br_dev)
1979 return true;
1980 }
1981
1982 return false;
1983}
1984
1985static int
1986mlxsw_sp_bridge_8021d_port_join(struct mlxsw_sp_bridge_device *bridge_device,
1987 struct mlxsw_sp_bridge_port *bridge_port,
1988 struct mlxsw_sp_port *mlxsw_sp_port,
1989 struct netlink_ext_ack *extack)
1990{
1991 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
1992 struct net_device *dev = bridge_port->dev;
1993 u16 vid;
1994
1995 vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 1;
1996 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
1997 if (WARN_ON(!mlxsw_sp_port_vlan))
1998 return -EINVAL;
1999
2000 if (mlxsw_sp_port_is_br_member(mlxsw_sp_port, bridge_device->dev)) {
2001 NL_SET_ERR_MSG_MOD(extack, "Can not bridge VLAN uppers of the same port");
2002 return -EINVAL;
2003 }
2004
2005
2006 if (mlxsw_sp_port_vlan->fid)
2007 mlxsw_sp_port_vlan_router_leave(mlxsw_sp_port_vlan);
2008
2009 return mlxsw_sp_port_vlan_bridge_join(mlxsw_sp_port_vlan, bridge_port);
2010}
2011
2012static void
2013mlxsw_sp_bridge_8021d_port_leave(struct mlxsw_sp_bridge_device *bridge_device,
2014 struct mlxsw_sp_bridge_port *bridge_port,
2015 struct mlxsw_sp_port *mlxsw_sp_port)
2016{
2017 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2018 struct net_device *dev = bridge_port->dev;
2019 u16 vid;
2020
2021 vid = is_vlan_dev(dev) ? vlan_dev_vlan_id(dev) : 1;
2022 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_vid(mlxsw_sp_port, vid);
2023 if (WARN_ON(!mlxsw_sp_port_vlan))
2024 return;
2025
2026 mlxsw_sp_port_vlan_bridge_leave(mlxsw_sp_port_vlan);
2027}
2028
2029static struct mlxsw_sp_fid *
2030mlxsw_sp_bridge_8021d_fid_get(struct mlxsw_sp_bridge_device *bridge_device,
2031 u16 vid)
2032{
2033 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(bridge_device->dev);
2034
2035 return mlxsw_sp_fid_8021d_get(mlxsw_sp, bridge_device->dev->ifindex);
2036}
2037
2038static const struct mlxsw_sp_bridge_ops mlxsw_sp_bridge_8021d_ops = {
2039 .port_join = mlxsw_sp_bridge_8021d_port_join,
2040 .port_leave = mlxsw_sp_bridge_8021d_port_leave,
2041 .fid_get = mlxsw_sp_bridge_8021d_fid_get,
2042};
2043
2044int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
2045 struct net_device *brport_dev,
2046 struct net_device *br_dev,
2047 struct netlink_ext_ack *extack)
2048{
2049 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2050 struct mlxsw_sp_bridge_device *bridge_device;
2051 struct mlxsw_sp_bridge_port *bridge_port;
2052 int err;
2053
2054 bridge_port = mlxsw_sp_bridge_port_get(mlxsw_sp->bridge, brport_dev);
2055 if (IS_ERR(bridge_port))
2056 return PTR_ERR(bridge_port);
2057 bridge_device = bridge_port->bridge_device;
2058
2059 err = bridge_device->ops->port_join(bridge_device, bridge_port,
2060 mlxsw_sp_port, extack);
2061 if (err)
2062 goto err_port_join;
2063
2064 return 0;
2065
2066err_port_join:
2067 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
2068 return err;
2069}
2070
2071void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port,
2072 struct net_device *brport_dev,
2073 struct net_device *br_dev)
2074{
2075 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2076 struct mlxsw_sp_bridge_device *bridge_device;
2077 struct mlxsw_sp_bridge_port *bridge_port;
2078
2079 bridge_device = mlxsw_sp_bridge_device_find(mlxsw_sp->bridge, br_dev);
2080 if (!bridge_device)
2081 return;
2082 bridge_port = __mlxsw_sp_bridge_port_find(bridge_device, brport_dev);
2083 if (!bridge_port)
2084 return;
2085
2086 bridge_device->ops->port_leave(bridge_device, bridge_port,
2087 mlxsw_sp_port);
2088 mlxsw_sp_bridge_port_put(mlxsw_sp->bridge, bridge_port);
2089}
2090
2091static void
2092mlxsw_sp_fdb_call_notifiers(enum switchdev_notifier_type type,
2093 const char *mac, u16 vid,
2094 struct net_device *dev)
2095{
2096 struct switchdev_notifier_fdb_info info;
2097
2098 info.addr = mac;
2099 info.vid = vid;
2100 call_switchdev_notifiers(type, dev, &info.info);
2101}
2102
2103static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
2104 char *sfn_pl, int rec_index,
2105 bool adding)
2106{
2107 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2108 struct mlxsw_sp_bridge_device *bridge_device;
2109 struct mlxsw_sp_bridge_port *bridge_port;
2110 struct mlxsw_sp_port *mlxsw_sp_port;
2111 enum switchdev_notifier_type type;
2112 char mac[ETH_ALEN];
2113 u8 local_port;
2114 u16 vid, fid;
2115 bool do_notification = true;
2116 int err;
2117
2118 mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
2119 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2120 if (!mlxsw_sp_port) {
2121 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
2122 goto just_remove;
2123 }
2124
2125 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
2126 if (!mlxsw_sp_port_vlan) {
2127 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
2128 goto just_remove;
2129 }
2130
2131 bridge_port = mlxsw_sp_port_vlan->bridge_port;
2132 if (!bridge_port) {
2133 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
2134 goto just_remove;
2135 }
2136
2137 bridge_device = bridge_port->bridge_device;
2138 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
2139
2140do_fdb_op:
2141 err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
2142 adding, true);
2143 if (err) {
2144 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
2145 return;
2146 }
2147
2148 if (!do_notification)
2149 return;
2150 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
2151 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
2152
2153 return;
2154
2155just_remove:
2156 adding = false;
2157 do_notification = false;
2158 goto do_fdb_op;
2159}
2160
2161static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
2162 char *sfn_pl, int rec_index,
2163 bool adding)
2164{
2165 struct mlxsw_sp_port_vlan *mlxsw_sp_port_vlan;
2166 struct mlxsw_sp_bridge_device *bridge_device;
2167 struct mlxsw_sp_bridge_port *bridge_port;
2168 struct mlxsw_sp_port *mlxsw_sp_port;
2169 enum switchdev_notifier_type type;
2170 char mac[ETH_ALEN];
2171 u16 lag_vid = 0;
2172 u16 lag_id;
2173 u16 vid, fid;
2174 bool do_notification = true;
2175 int err;
2176
2177 mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
2178 mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
2179 if (!mlxsw_sp_port) {
2180 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
2181 goto just_remove;
2182 }
2183
2184 mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_find_by_fid(mlxsw_sp_port, fid);
2185 if (!mlxsw_sp_port_vlan) {
2186 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching {Port, VID} following FDB notification\n");
2187 goto just_remove;
2188 }
2189
2190 bridge_port = mlxsw_sp_port_vlan->bridge_port;
2191 if (!bridge_port) {
2192 netdev_err(mlxsw_sp_port->dev, "{Port, VID} not associated with a bridge\n");
2193 goto just_remove;
2194 }
2195
2196 bridge_device = bridge_port->bridge_device;
2197 vid = bridge_device->vlan_enabled ? mlxsw_sp_port_vlan->vid : 0;
2198 lag_vid = mlxsw_sp_port_vlan->vid;
2199
2200do_fdb_op:
2201 err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
2202 adding, true);
2203 if (err) {
2204 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to set FDB entry\n");
2205 return;
2206 }
2207
2208 if (!do_notification)
2209 return;
2210 type = adding ? SWITCHDEV_FDB_ADD_TO_BRIDGE : SWITCHDEV_FDB_DEL_TO_BRIDGE;
2211 mlxsw_sp_fdb_call_notifiers(type, mac, vid, bridge_port->dev);
2212
2213 return;
2214
2215just_remove:
2216 adding = false;
2217 do_notification = false;
2218 goto do_fdb_op;
2219}
2220
2221static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
2222 char *sfn_pl, int rec_index)
2223{
2224 switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
2225 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
2226 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
2227 rec_index, true);
2228 break;
2229 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
2230 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
2231 rec_index, false);
2232 break;
2233 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
2234 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
2235 rec_index, true);
2236 break;
2237 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
2238 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
2239 rec_index, false);
2240 break;
2241 }
2242}
2243
2244static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
2245{
2246 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
2247
2248 mlxsw_core_schedule_dw(&bridge->fdb_notify.dw,
2249 msecs_to_jiffies(bridge->fdb_notify.interval));
2250}
2251
2252static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
2253{
2254 struct mlxsw_sp_bridge *bridge;
2255 struct mlxsw_sp *mlxsw_sp;
2256 char *sfn_pl;
2257 u8 num_rec;
2258 int i;
2259 int err;
2260
2261 sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
2262 if (!sfn_pl)
2263 return;
2264
2265 bridge = container_of(work, struct mlxsw_sp_bridge, fdb_notify.dw.work);
2266 mlxsw_sp = bridge->mlxsw_sp;
2267
2268 rtnl_lock();
2269 mlxsw_reg_sfn_pack(sfn_pl);
2270 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
2271 if (err) {
2272 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
2273 goto out;
2274 }
2275 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
2276 for (i = 0; i < num_rec; i++)
2277 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
2278
2279out:
2280 rtnl_unlock();
2281 kfree(sfn_pl);
2282 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
2283}
2284
2285struct mlxsw_sp_switchdev_event_work {
2286 struct work_struct work;
2287 struct switchdev_notifier_fdb_info fdb_info;
2288 struct net_device *dev;
2289 unsigned long event;
2290};
2291
2292static void mlxsw_sp_switchdev_event_work(struct work_struct *work)
2293{
2294 struct mlxsw_sp_switchdev_event_work *switchdev_work =
2295 container_of(work, struct mlxsw_sp_switchdev_event_work, work);
2296 struct net_device *dev = switchdev_work->dev;
2297 struct switchdev_notifier_fdb_info *fdb_info;
2298 struct mlxsw_sp_port *mlxsw_sp_port;
2299 int err;
2300
2301 rtnl_lock();
2302 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
2303 if (!mlxsw_sp_port)
2304 goto out;
2305
2306 switch (switchdev_work->event) {
2307 case SWITCHDEV_FDB_ADD_TO_DEVICE:
2308 fdb_info = &switchdev_work->fdb_info;
2309 if (!fdb_info->added_by_user)
2310 break;
2311 err = mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, true);
2312 if (err)
2313 break;
2314 mlxsw_sp_fdb_call_notifiers(SWITCHDEV_FDB_OFFLOADED,
2315 fdb_info->addr,
2316 fdb_info->vid, dev);
2317 break;
2318 case SWITCHDEV_FDB_DEL_TO_DEVICE:
2319 fdb_info = &switchdev_work->fdb_info;
2320 if (!fdb_info->added_by_user)
2321 break;
2322 mlxsw_sp_port_fdb_set(mlxsw_sp_port, fdb_info, false);
2323 break;
2324 case SWITCHDEV_FDB_ADD_TO_BRIDGE:
2325 case SWITCHDEV_FDB_DEL_TO_BRIDGE:
2326
2327
2328
2329 break;
2330 }
2331
2332 mlxsw_sp_span_respin(mlxsw_sp_port->mlxsw_sp);
2333
2334out:
2335 rtnl_unlock();
2336 kfree(switchdev_work->fdb_info.addr);
2337 kfree(switchdev_work);
2338 dev_put(dev);
2339}
2340
2341
2342static int mlxsw_sp_switchdev_event(struct notifier_block *unused,
2343 unsigned long event, void *ptr)
2344{
2345 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
2346 struct mlxsw_sp_switchdev_event_work *switchdev_work;
2347 struct switchdev_notifier_fdb_info *fdb_info = ptr;
2348
2349 if (!mlxsw_sp_port_dev_lower_find_rcu(dev))
2350 return NOTIFY_DONE;
2351
2352 switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
2353 if (!switchdev_work)
2354 return NOTIFY_BAD;
2355
2356 INIT_WORK(&switchdev_work->work, mlxsw_sp_switchdev_event_work);
2357 switchdev_work->dev = dev;
2358 switchdev_work->event = event;
2359
2360 switch (event) {
2361 case SWITCHDEV_FDB_ADD_TO_DEVICE:
2362 case SWITCHDEV_FDB_DEL_TO_DEVICE:
2363 case SWITCHDEV_FDB_ADD_TO_BRIDGE:
2364 case SWITCHDEV_FDB_DEL_TO_BRIDGE:
2365 memcpy(&switchdev_work->fdb_info, ptr,
2366 sizeof(switchdev_work->fdb_info));
2367 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
2368 if (!switchdev_work->fdb_info.addr)
2369 goto err_addr_alloc;
2370 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
2371 fdb_info->addr);
2372
2373
2374
2375
2376 dev_hold(dev);
2377 break;
2378 default:
2379 kfree(switchdev_work);
2380 return NOTIFY_DONE;
2381 }
2382
2383 mlxsw_core_schedule_work(&switchdev_work->work);
2384
2385 return NOTIFY_DONE;
2386
2387err_addr_alloc:
2388 kfree(switchdev_work);
2389 return NOTIFY_BAD;
2390}
2391
2392static struct notifier_block mlxsw_sp_switchdev_notifier = {
2393 .notifier_call = mlxsw_sp_switchdev_event,
2394};
2395
2396u8
2397mlxsw_sp_bridge_port_stp_state(struct mlxsw_sp_bridge_port *bridge_port)
2398{
2399 return bridge_port->stp_state;
2400}
2401
2402static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
2403{
2404 struct mlxsw_sp_bridge *bridge = mlxsw_sp->bridge;
2405 int err;
2406
2407 err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
2408 if (err) {
2409 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
2410 return err;
2411 }
2412
2413 err = register_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
2414 if (err) {
2415 dev_err(mlxsw_sp->bus_info->dev, "Failed to register switchdev notifier\n");
2416 return err;
2417 }
2418
2419 INIT_DELAYED_WORK(&bridge->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
2420 bridge->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
2421 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
2422 return 0;
2423}
2424
2425static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
2426{
2427 cancel_delayed_work_sync(&mlxsw_sp->bridge->fdb_notify.dw);
2428 unregister_switchdev_notifier(&mlxsw_sp_switchdev_notifier);
2429
2430}
2431
2432int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
2433{
2434 struct mlxsw_sp_bridge *bridge;
2435
2436 bridge = kzalloc(sizeof(*mlxsw_sp->bridge), GFP_KERNEL);
2437 if (!bridge)
2438 return -ENOMEM;
2439 mlxsw_sp->bridge = bridge;
2440 bridge->mlxsw_sp = mlxsw_sp;
2441
2442 INIT_LIST_HEAD(&mlxsw_sp->bridge->bridges_list);
2443
2444 bridge->bridge_8021q_ops = &mlxsw_sp_bridge_8021q_ops;
2445 bridge->bridge_8021d_ops = &mlxsw_sp_bridge_8021d_ops;
2446
2447 return mlxsw_sp_fdb_init(mlxsw_sp);
2448}
2449
2450void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
2451{
2452 mlxsw_sp_fdb_fini(mlxsw_sp);
2453 WARN_ON(!list_empty(&mlxsw_sp->bridge->bridges_list));
2454 kfree(mlxsw_sp->bridge);
2455}
2456
2457void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
2458{
2459 mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
2460}
2461
2462void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
2463{
2464}
2465
