Loading...
Note: File does not exist in v3.1.
1// SPDX-License-Identifier: GPL-2.0+
2/* Microchip Sparx5 Switch driver
3 *
4 * Copyright (c) 2021 Microchip Technology Inc. and its subsidiaries.
5 */
6
7#include <linux/if_bridge.h>
8#include <net/switchdev.h>
9
10#include "sparx5_main_regs.h"
11#include "sparx5_main.h"
12
13static struct workqueue_struct *sparx5_owq;
14
15struct sparx5_switchdev_event_work {
16 struct work_struct work;
17 struct switchdev_notifier_fdb_info fdb_info;
18 struct net_device *dev;
19 struct sparx5 *sparx5;
20 unsigned long event;
21};
22
23static int sparx5_port_attr_pre_bridge_flags(struct sparx5_port *port,
24 struct switchdev_brport_flags flags)
25{
26 if (flags.mask & ~(BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD))
27 return -EINVAL;
28
29 return 0;
30}
31
32static void sparx5_port_update_mcast_ip_flood(struct sparx5_port *port, bool flood_flag)
33{
34 bool should_flood = flood_flag || port->is_mrouter;
35 struct sparx5 *sparx5 = port->sparx5;
36 int pgid;
37
38 for (pgid = sparx5_get_pgid(sparx5, PGID_IPV4_MC_DATA);
39 pgid <= sparx5_get_pgid(sparx5, PGID_IPV6_MC_CTRL); pgid++)
40 sparx5_pgid_update_mask(port, pgid, should_flood);
41}
42
43static void sparx5_port_attr_bridge_flags(struct sparx5_port *port,
44 struct switchdev_brport_flags flags)
45{
46 struct sparx5 *sparx5 = port->sparx5;
47
48 if (flags.mask & BR_MCAST_FLOOD) {
49 sparx5_pgid_update_mask(port,
50 sparx5_get_pgid(sparx5, PGID_MC_FLOOD),
51 !!(flags.val & BR_MCAST_FLOOD));
52 sparx5_port_update_mcast_ip_flood(port, !!(flags.val & BR_MCAST_FLOOD));
53 }
54
55 if (flags.mask & BR_FLOOD)
56 sparx5_pgid_update_mask(port,
57 sparx5_get_pgid(sparx5, PGID_UC_FLOOD),
58 !!(flags.val & BR_FLOOD));
59 if (flags.mask & BR_BCAST_FLOOD)
60 sparx5_pgid_update_mask(port,
61 sparx5_get_pgid(sparx5, PGID_BCAST),
62 !!(flags.val & BR_BCAST_FLOOD));
63}
64
65static void sparx5_attr_stp_state_set(struct sparx5_port *port,
66 u8 state)
67{
68 struct sparx5 *sparx5 = port->sparx5;
69
70 if (!test_bit(port->portno, sparx5->bridge_mask)) {
71 netdev_err(port->ndev,
72 "Controlling non-bridged port %d?\n", port->portno);
73 return;
74 }
75
76 switch (state) {
77 case BR_STATE_FORWARDING:
78 set_bit(port->portno, sparx5->bridge_fwd_mask);
79 fallthrough;
80 case BR_STATE_LEARNING:
81 set_bit(port->portno, sparx5->bridge_lrn_mask);
82 break;
83
84 default:
85 /* All other states treated as blocking */
86 clear_bit(port->portno, sparx5->bridge_fwd_mask);
87 clear_bit(port->portno, sparx5->bridge_lrn_mask);
88 break;
89 }
90
91 /* apply the bridge_fwd_mask to all the ports */
92 sparx5_update_fwd(sparx5);
93}
94
95static void sparx5_port_attr_ageing_set(struct sparx5_port *port,
96 unsigned long ageing_clock_t)
97{
98 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
99 u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
100
101 sparx5_set_ageing(port->sparx5, ageing_time);
102}
103
104static void sparx5_port_attr_mrouter_set(struct sparx5_port *port,
105 struct net_device *orig_dev,
106 bool enable)
107{
108 struct sparx5 *sparx5 = port->sparx5;
109 struct sparx5_mdb_entry *e;
110 bool flood_flag;
111
112 if ((enable && port->is_mrouter) || (!enable && !port->is_mrouter))
113 return;
114
115 /* Add/del mrouter port on all active mdb entries in HW.
116 * Don't change entry port mask, since that represents
117 * ports that actually joined that group.
118 */
119 mutex_lock(&sparx5->mdb_lock);
120 list_for_each_entry(e, &sparx5->mdb_entries, list) {
121 if (!test_bit(port->portno, e->port_mask) &&
122 ether_addr_is_ip_mcast(e->addr))
123 sparx5_pgid_update_mask(port, e->pgid_idx, enable);
124 }
125 mutex_unlock(&sparx5->mdb_lock);
126
127 /* Enable/disable flooding depending on if port is mrouter port
128 * or if mcast flood is enabled.
129 */
130 port->is_mrouter = enable;
131 flood_flag = br_port_flag_is_set(port->ndev, BR_MCAST_FLOOD);
132 sparx5_port_update_mcast_ip_flood(port, flood_flag);
133}
134
135static int sparx5_port_attr_set(struct net_device *dev, const void *ctx,
136 const struct switchdev_attr *attr,
137 struct netlink_ext_ack *extack)
138{
139 struct sparx5_port *port = netdev_priv(dev);
140
141 switch (attr->id) {
142 case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
143 return sparx5_port_attr_pre_bridge_flags(port,
144 attr->u.brport_flags);
145 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
146 sparx5_port_attr_bridge_flags(port, attr->u.brport_flags);
147 break;
148 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
149 sparx5_attr_stp_state_set(port, attr->u.stp_state);
150 break;
151 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
152 sparx5_port_attr_ageing_set(port, attr->u.ageing_time);
153 break;
154 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
155 /* Used PVID 1 when default_pvid is 0, to avoid
156 * collision with non-bridged ports.
157 */
158 if (port->pvid == 0)
159 port->pvid = 1;
160 port->vlan_aware = attr->u.vlan_filtering;
161 sparx5_vlan_port_apply(port->sparx5, port);
162 break;
163 case SWITCHDEV_ATTR_ID_PORT_MROUTER:
164 sparx5_port_attr_mrouter_set(port,
165 attr->orig_dev,
166 attr->u.mrouter);
167 break;
168 default:
169 return -EOPNOTSUPP;
170 }
171
172 return 0;
173}
174
175static int sparx5_port_bridge_join(struct sparx5_port *port,
176 struct net_device *bridge,
177 struct netlink_ext_ack *extack)
178{
179 struct sparx5 *sparx5 = port->sparx5;
180 struct net_device *ndev = port->ndev;
181 int err;
182
183 if (bitmap_empty(sparx5->bridge_mask, SPX5_PORTS))
184 /* First bridged port */
185 sparx5->hw_bridge_dev = bridge;
186 else
187 if (sparx5->hw_bridge_dev != bridge)
188 /* This is adding the port to a second bridge, this is
189 * unsupported
190 */
191 return -ENODEV;
192
193 set_bit(port->portno, sparx5->bridge_mask);
194
195 err = switchdev_bridge_port_offload(ndev, ndev, NULL, NULL, NULL,
196 false, extack);
197 if (err)
198 goto err_switchdev_offload;
199
200 /* Remove standalone port entry */
201 sparx5_mact_forget(sparx5, ndev->dev_addr, 0);
202
203 /* Port enters in bridge mode therefore don't need to copy to CPU
204 * frames for multicast in case the bridge is not requesting them
205 */
206 __dev_mc_unsync(ndev, sparx5_mc_unsync);
207
208 return 0;
209
210err_switchdev_offload:
211 clear_bit(port->portno, sparx5->bridge_mask);
212 return err;
213}
214
215static void sparx5_port_bridge_leave(struct sparx5_port *port,
216 struct net_device *bridge)
217{
218 struct sparx5 *sparx5 = port->sparx5;
219
220 switchdev_bridge_port_unoffload(port->ndev, NULL, NULL, NULL);
221
222 clear_bit(port->portno, sparx5->bridge_mask);
223 if (bitmap_empty(sparx5->bridge_mask, SPX5_PORTS))
224 sparx5->hw_bridge_dev = NULL;
225
226 /* Clear bridge vlan settings before updating the port settings */
227 port->vlan_aware = 0;
228 port->pvid = NULL_VID;
229 port->vid = NULL_VID;
230
231 /* Forward frames to CPU */
232 sparx5_mact_learn(sparx5, sparx5_get_pgid(sparx5, PGID_CPU),
233 port->ndev->dev_addr, 0);
234
235 /* Port enters in host more therefore restore mc list */
236 __dev_mc_sync(port->ndev, sparx5_mc_sync, sparx5_mc_unsync);
237}
238
239static int sparx5_port_changeupper(struct net_device *dev,
240 struct netdev_notifier_changeupper_info *info)
241{
242 struct sparx5_port *port = netdev_priv(dev);
243 struct netlink_ext_ack *extack;
244 int err = 0;
245
246 extack = netdev_notifier_info_to_extack(&info->info);
247
248 if (netif_is_bridge_master(info->upper_dev)) {
249 if (info->linking)
250 err = sparx5_port_bridge_join(port, info->upper_dev,
251 extack);
252 else
253 sparx5_port_bridge_leave(port, info->upper_dev);
254
255 sparx5_vlan_port_apply(port->sparx5, port);
256 }
257
258 return err;
259}
260
261static int sparx5_port_add_addr(struct net_device *dev, bool up)
262{
263 struct sparx5_port *port = netdev_priv(dev);
264 struct sparx5 *sparx5 = port->sparx5;
265 u16 vid = port->pvid;
266
267 if (up)
268 sparx5_mact_learn(sparx5, sparx5_get_pgid(sparx5, PGID_CPU),
269 port->ndev->dev_addr, vid);
270 else
271 sparx5_mact_forget(sparx5, port->ndev->dev_addr, vid);
272
273 return 0;
274}
275
276static int sparx5_netdevice_port_event(struct net_device *dev,
277 struct notifier_block *nb,
278 unsigned long event, void *ptr)
279{
280 int err = 0;
281
282 if (!sparx5_netdevice_check(dev))
283 return 0;
284
285 switch (event) {
286 case NETDEV_CHANGEUPPER:
287 err = sparx5_port_changeupper(dev, ptr);
288 break;
289 case NETDEV_PRE_UP:
290 err = sparx5_port_add_addr(dev, true);
291 break;
292 case NETDEV_DOWN:
293 err = sparx5_port_add_addr(dev, false);
294 break;
295 }
296
297 return err;
298}
299
300static int sparx5_netdevice_event(struct notifier_block *nb,
301 unsigned long event, void *ptr)
302{
303 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
304 int ret = 0;
305
306 ret = sparx5_netdevice_port_event(dev, nb, event, ptr);
307
308 return notifier_from_errno(ret);
309}
310
311static void sparx5_switchdev_bridge_fdb_event_work(struct work_struct *work)
312{
313 struct sparx5_switchdev_event_work *switchdev_work =
314 container_of(work, struct sparx5_switchdev_event_work, work);
315 struct net_device *dev = switchdev_work->dev;
316 struct switchdev_notifier_fdb_info *fdb_info;
317 struct sparx5_port *port;
318 struct sparx5 *sparx5;
319 bool host_addr;
320 u16 vid;
321
322 rtnl_lock();
323 if (!sparx5_netdevice_check(dev)) {
324 host_addr = true;
325 sparx5 = switchdev_work->sparx5;
326 } else {
327 host_addr = false;
328 sparx5 = switchdev_work->sparx5;
329 port = netdev_priv(dev);
330 }
331
332 fdb_info = &switchdev_work->fdb_info;
333
334 /* Used PVID 1 when default_pvid is 0, to avoid
335 * collision with non-bridged ports.
336 */
337 if (fdb_info->vid == 0)
338 vid = 1;
339 else
340 vid = fdb_info->vid;
341
342 switch (switchdev_work->event) {
343 case SWITCHDEV_FDB_ADD_TO_DEVICE:
344 if (host_addr)
345 sparx5_add_mact_entry(sparx5, dev,
346 sparx5_get_pgid(sparx5, PGID_CPU),
347 fdb_info->addr, vid);
348 else
349 sparx5_add_mact_entry(sparx5, port->ndev, port->portno,
350 fdb_info->addr, vid);
351 break;
352 case SWITCHDEV_FDB_DEL_TO_DEVICE:
353 sparx5_del_mact_entry(sparx5, fdb_info->addr, vid);
354 break;
355 }
356
357 rtnl_unlock();
358 kfree(switchdev_work->fdb_info.addr);
359 kfree(switchdev_work);
360 dev_put(dev);
361}
362
363static void sparx5_schedule_work(struct work_struct *work)
364{
365 queue_work(sparx5_owq, work);
366}
367
368static int sparx5_switchdev_event(struct notifier_block *nb,
369 unsigned long event, void *ptr)
370{
371 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
372 struct sparx5_switchdev_event_work *switchdev_work;
373 struct switchdev_notifier_fdb_info *fdb_info;
374 struct switchdev_notifier_info *info = ptr;
375 struct sparx5 *spx5;
376 int err;
377
378 spx5 = container_of(nb, struct sparx5, switchdev_nb);
379
380 switch (event) {
381 case SWITCHDEV_PORT_ATTR_SET:
382 err = switchdev_handle_port_attr_set(dev, ptr,
383 sparx5_netdevice_check,
384 sparx5_port_attr_set);
385 return notifier_from_errno(err);
386 case SWITCHDEV_FDB_ADD_TO_DEVICE:
387 fallthrough;
388 case SWITCHDEV_FDB_DEL_TO_DEVICE:
389 switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
390 if (!switchdev_work)
391 return NOTIFY_BAD;
392
393 switchdev_work->dev = dev;
394 switchdev_work->event = event;
395 switchdev_work->sparx5 = spx5;
396
397 fdb_info = container_of(info,
398 struct switchdev_notifier_fdb_info,
399 info);
400 INIT_WORK(&switchdev_work->work,
401 sparx5_switchdev_bridge_fdb_event_work);
402 memcpy(&switchdev_work->fdb_info, ptr,
403 sizeof(switchdev_work->fdb_info));
404 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
405 if (!switchdev_work->fdb_info.addr)
406 goto err_addr_alloc;
407
408 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
409 fdb_info->addr);
410 dev_hold(dev);
411
412 sparx5_schedule_work(&switchdev_work->work);
413 break;
414 }
415
416 return NOTIFY_DONE;
417err_addr_alloc:
418 kfree(switchdev_work);
419 return NOTIFY_BAD;
420}
421
422static int sparx5_handle_port_vlan_add(struct net_device *dev,
423 struct notifier_block *nb,
424 const struct switchdev_obj_port_vlan *v)
425{
426 struct sparx5_port *port = netdev_priv(dev);
427
428 if (netif_is_bridge_master(dev)) {
429 struct sparx5 *sparx5 =
430 container_of(nb, struct sparx5,
431 switchdev_blocking_nb);
432
433 /* Flood broadcast to CPU */
434 sparx5_mact_learn(sparx5, sparx5_get_pgid(sparx5, PGID_BCAST),
435 dev->broadcast, v->vid);
436 return 0;
437 }
438
439 if (!sparx5_netdevice_check(dev))
440 return -EOPNOTSUPP;
441
442 return sparx5_vlan_vid_add(port, v->vid,
443 v->flags & BRIDGE_VLAN_INFO_PVID,
444 v->flags & BRIDGE_VLAN_INFO_UNTAGGED);
445}
446
447static int sparx5_alloc_mdb_entry(struct sparx5 *sparx5,
448 const unsigned char *addr,
449 u16 vid,
450 struct sparx5_mdb_entry **entry_out)
451{
452 struct sparx5_mdb_entry *entry;
453 u16 pgid_idx;
454 int err;
455
456 entry = kzalloc(sizeof(*entry), GFP_KERNEL);
457 if (!entry)
458 return -ENOMEM;
459
460 err = sparx5_pgid_alloc_mcast(sparx5, &pgid_idx);
461 if (err) {
462 kfree(entry);
463 return err;
464 }
465
466 memcpy(entry->addr, addr, ETH_ALEN);
467 entry->vid = vid;
468 entry->pgid_idx = pgid_idx;
469
470 mutex_lock(&sparx5->mdb_lock);
471 list_add_tail(&entry->list, &sparx5->mdb_entries);
472 mutex_unlock(&sparx5->mdb_lock);
473
474 *entry_out = entry;
475 return 0;
476}
477
478static void sparx5_free_mdb_entry(struct sparx5 *sparx5,
479 const unsigned char *addr,
480 u16 vid)
481{
482 struct sparx5_mdb_entry *entry, *tmp;
483
484 mutex_lock(&sparx5->mdb_lock);
485 list_for_each_entry_safe(entry, tmp, &sparx5->mdb_entries, list) {
486 if ((vid == 0 || entry->vid == vid) &&
487 ether_addr_equal(addr, entry->addr)) {
488 list_del(&entry->list);
489
490 sparx5_pgid_free(sparx5, entry->pgid_idx);
491 kfree(entry);
492 goto out;
493 }
494 }
495
496out:
497 mutex_unlock(&sparx5->mdb_lock);
498}
499
500static struct sparx5_mdb_entry *sparx5_mdb_get_entry(struct sparx5 *sparx5,
501 const unsigned char *addr,
502 u16 vid)
503{
504 struct sparx5_mdb_entry *e, *found = NULL;
505
506 mutex_lock(&sparx5->mdb_lock);
507 list_for_each_entry(e, &sparx5->mdb_entries, list) {
508 if (ether_addr_equal(e->addr, addr) && e->vid == vid) {
509 found = e;
510 goto out;
511 }
512 }
513
514out:
515 mutex_unlock(&sparx5->mdb_lock);
516 return found;
517}
518
519static void sparx5_cpu_copy_ena(struct sparx5 *spx5, u16 pgid, bool enable)
520{
521 spx5_rmw(ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA_SET(enable),
522 ANA_AC_PGID_MISC_CFG_PGID_CPU_COPY_ENA, spx5,
523 ANA_AC_PGID_MISC_CFG(pgid));
524}
525
526static int sparx5_handle_port_mdb_add(struct net_device *dev,
527 struct notifier_block *nb,
528 const struct switchdev_obj_port_mdb *v)
529{
530 struct sparx5_port *port = netdev_priv(dev);
531 struct sparx5 *spx5 = port->sparx5;
532 struct sparx5_mdb_entry *entry;
533 bool is_host, is_new;
534 int err, i;
535 u16 vid;
536
537 if (!sparx5_netdevice_check(dev))
538 return -EOPNOTSUPP;
539
540 is_host = netif_is_bridge_master(v->obj.orig_dev);
541
542 /* When VLAN unaware the vlan value is not parsed and we receive vid 0.
543 * Fall back to bridge vid 1.
544 */
545 if (!br_vlan_enabled(spx5->hw_bridge_dev))
546 vid = 1;
547 else
548 vid = v->vid;
549
550 is_new = false;
551 entry = sparx5_mdb_get_entry(spx5, v->addr, vid);
552 if (!entry) {
553 err = sparx5_alloc_mdb_entry(spx5, v->addr, vid, &entry);
554 is_new = true;
555 if (err)
556 return err;
557 }
558
559 mutex_lock(&spx5->mdb_lock);
560
561 /* Add any mrouter ports to the new entry */
562 if (is_new && ether_addr_is_ip_mcast(v->addr))
563 for (i = 0; i < spx5->data->consts->n_ports; i++)
564 if (spx5->ports[i] && spx5->ports[i]->is_mrouter)
565 sparx5_pgid_update_mask(spx5->ports[i],
566 entry->pgid_idx,
567 true);
568
569 if (is_host && !entry->cpu_copy) {
570 sparx5_cpu_copy_ena(spx5, entry->pgid_idx, true);
571 entry->cpu_copy = true;
572 } else if (!is_host) {
573 sparx5_pgid_update_mask(port, entry->pgid_idx, true);
574 set_bit(port->portno, entry->port_mask);
575 }
576 mutex_unlock(&spx5->mdb_lock);
577
578 sparx5_mact_learn(spx5, entry->pgid_idx, entry->addr, entry->vid);
579
580 return 0;
581}
582
583static int sparx5_handle_port_mdb_del(struct net_device *dev,
584 struct notifier_block *nb,
585 const struct switchdev_obj_port_mdb *v)
586{
587 struct sparx5_port *port = netdev_priv(dev);
588 struct sparx5 *spx5 = port->sparx5;
589 struct sparx5_mdb_entry *entry;
590 bool is_host;
591 u16 vid;
592
593 if (!sparx5_netdevice_check(dev))
594 return -EOPNOTSUPP;
595
596 is_host = netif_is_bridge_master(v->obj.orig_dev);
597
598 if (!br_vlan_enabled(spx5->hw_bridge_dev))
599 vid = 1;
600 else
601 vid = v->vid;
602
603 entry = sparx5_mdb_get_entry(spx5, v->addr, vid);
604 if (!entry)
605 return 0;
606
607 mutex_lock(&spx5->mdb_lock);
608 if (is_host && entry->cpu_copy) {
609 sparx5_cpu_copy_ena(spx5, entry->pgid_idx, false);
610 entry->cpu_copy = false;
611 } else if (!is_host) {
612 clear_bit(port->portno, entry->port_mask);
613
614 /* Port not mrouter port or addr is L2 mcast, remove port from mask. */
615 if (!port->is_mrouter || !ether_addr_is_ip_mcast(v->addr))
616 sparx5_pgid_update_mask(port, entry->pgid_idx, false);
617 }
618 mutex_unlock(&spx5->mdb_lock);
619
620 if (bitmap_empty(entry->port_mask, SPX5_PORTS) && !entry->cpu_copy) {
621 /* Clear pgid in case mrouter ports exists
622 * that are not part of the group.
623 */
624 sparx5_pgid_clear(spx5, entry->pgid_idx);
625 sparx5_mact_forget(spx5, entry->addr, entry->vid);
626 sparx5_free_mdb_entry(spx5, entry->addr, entry->vid);
627 }
628 return 0;
629}
630
631static int sparx5_handle_port_obj_add(struct net_device *dev,
632 struct notifier_block *nb,
633 struct switchdev_notifier_port_obj_info *info)
634{
635 const struct switchdev_obj *obj = info->obj;
636 int err;
637
638 switch (obj->id) {
639 case SWITCHDEV_OBJ_ID_PORT_VLAN:
640 err = sparx5_handle_port_vlan_add(dev, nb,
641 SWITCHDEV_OBJ_PORT_VLAN(obj));
642 break;
643 case SWITCHDEV_OBJ_ID_PORT_MDB:
644 case SWITCHDEV_OBJ_ID_HOST_MDB:
645 err = sparx5_handle_port_mdb_add(dev, nb,
646 SWITCHDEV_OBJ_PORT_MDB(obj));
647 break;
648 default:
649 err = -EOPNOTSUPP;
650 break;
651 }
652
653 info->handled = true;
654 return err;
655}
656
657static int sparx5_handle_port_vlan_del(struct net_device *dev,
658 struct notifier_block *nb,
659 u16 vid)
660{
661 struct sparx5_port *port = netdev_priv(dev);
662 int ret;
663
664 /* Master bridge? */
665 if (netif_is_bridge_master(dev)) {
666 struct sparx5 *sparx5 =
667 container_of(nb, struct sparx5,
668 switchdev_blocking_nb);
669
670 sparx5_mact_forget(sparx5, dev->broadcast, vid);
671 return 0;
672 }
673
674 if (!sparx5_netdevice_check(dev))
675 return -EOPNOTSUPP;
676
677 ret = sparx5_vlan_vid_del(port, vid);
678 if (ret)
679 return ret;
680
681 return 0;
682}
683
684static int sparx5_handle_port_obj_del(struct net_device *dev,
685 struct notifier_block *nb,
686 struct switchdev_notifier_port_obj_info *info)
687{
688 const struct switchdev_obj *obj = info->obj;
689 int err;
690
691 switch (obj->id) {
692 case SWITCHDEV_OBJ_ID_PORT_VLAN:
693 err = sparx5_handle_port_vlan_del(dev, nb,
694 SWITCHDEV_OBJ_PORT_VLAN(obj)->vid);
695 break;
696 case SWITCHDEV_OBJ_ID_PORT_MDB:
697 case SWITCHDEV_OBJ_ID_HOST_MDB:
698 err = sparx5_handle_port_mdb_del(dev, nb,
699 SWITCHDEV_OBJ_PORT_MDB(obj));
700 break;
701 default:
702 err = -EOPNOTSUPP;
703 break;
704 }
705
706 info->handled = true;
707 return err;
708}
709
710static int sparx5_switchdev_blocking_event(struct notifier_block *nb,
711 unsigned long event,
712 void *ptr)
713{
714 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
715 int err;
716
717 switch (event) {
718 case SWITCHDEV_PORT_OBJ_ADD:
719 err = sparx5_handle_port_obj_add(dev, nb, ptr);
720 return notifier_from_errno(err);
721 case SWITCHDEV_PORT_OBJ_DEL:
722 err = sparx5_handle_port_obj_del(dev, nb, ptr);
723 return notifier_from_errno(err);
724 case SWITCHDEV_PORT_ATTR_SET:
725 err = switchdev_handle_port_attr_set(dev, ptr,
726 sparx5_netdevice_check,
727 sparx5_port_attr_set);
728 return notifier_from_errno(err);
729 }
730
731 return NOTIFY_DONE;
732}
733
734int sparx5_register_notifier_blocks(struct sparx5 *s5)
735{
736 int err;
737
738 s5->netdevice_nb.notifier_call = sparx5_netdevice_event;
739 err = register_netdevice_notifier(&s5->netdevice_nb);
740 if (err)
741 return err;
742
743 s5->switchdev_nb.notifier_call = sparx5_switchdev_event;
744 err = register_switchdev_notifier(&s5->switchdev_nb);
745 if (err)
746 goto err_switchdev_nb;
747
748 s5->switchdev_blocking_nb.notifier_call = sparx5_switchdev_blocking_event;
749 err = register_switchdev_blocking_notifier(&s5->switchdev_blocking_nb);
750 if (err)
751 goto err_switchdev_blocking_nb;
752
753 sparx5_owq = alloc_ordered_workqueue("sparx5_order", 0);
754 if (!sparx5_owq) {
755 err = -ENOMEM;
756 goto err_switchdev_blocking_nb;
757 }
758
759 return 0;
760
761err_switchdev_blocking_nb:
762 unregister_switchdev_notifier(&s5->switchdev_nb);
763err_switchdev_nb:
764 unregister_netdevice_notifier(&s5->netdevice_nb);
765
766 return err;
767}
768
769void sparx5_unregister_notifier_blocks(struct sparx5 *s5)
770{
771 destroy_workqueue(sparx5_owq);
772
773 unregister_switchdev_blocking_notifier(&s5->switchdev_blocking_nb);
774 unregister_switchdev_notifier(&s5->switchdev_nb);
775 unregister_netdevice_notifier(&s5->netdevice_nb);
776}