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net: dsa: create a dsa_lag structure
[linux-block.git] / net / dsa / dsa_priv.h
CommitLineData
2874c5fd 1/* SPDX-License-Identifier: GPL-2.0-or-later */
91da11f8
LB		 2/*
3 * net/dsa/dsa_priv.h - Hardware switch handling
e84665c9 4 * Copyright (c) 2008-2009 Marvell Semiconductor
91da11f8
LB		 5 */
6
7#ifndef __DSA_PRIV_H
8#define __DSA_PRIV_H
9
412a1526 10#include <linux/if_bridge.h>
b6459415 11#include <linux/if_vlan.h>
91da11f8 12#include <linux/phy.h>
5075314e 13#include <linux/netdevice.h>
04ff53f9 14#include <linux/netpoll.h>
ea5dd34b 15#include <net/dsa.h>
e131a563 16#include <net/gro_cells.h>
5075314e 17
123abc06
VO		 18#define DSA_MAX_NUM_OFFLOADING_BRIDGES BITS_PER_LONG
19
52c96f9d 20enum {
1faabf74 21 DSA_NOTIFIER_AGEING_TIME,
52c96f9d
VD		 22 DSA_NOTIFIER_BRIDGE_JOIN,
23 DSA_NOTIFIER_BRIDGE_LEAVE,
685fb6a4
VD		 24 DSA_NOTIFIER_FDB_ADD,
25 DSA_NOTIFIER_FDB_DEL,
3dc80afc
VO		 26 DSA_NOTIFIER_HOST_FDB_ADD,
27 DSA_NOTIFIER_HOST_FDB_DEL,
058102a6
TW		 28 DSA_NOTIFIER_LAG_CHANGE,
29 DSA_NOTIFIER_LAG_JOIN,
30 DSA_NOTIFIER_LAG_LEAVE,
8ae5bcdc
VD		 31 DSA_NOTIFIER_MDB_ADD,
32 DSA_NOTIFIER_MDB_DEL,
b8e997c4
VO		 33 DSA_NOTIFIER_HOST_MDB_ADD,
34 DSA_NOTIFIER_HOST_MDB_DEL,
d0c627b8
VD		 35 DSA_NOTIFIER_VLAN_ADD,
36 DSA_NOTIFIER_VLAN_DEL,
134ef238
VO		 37 DSA_NOTIFIER_HOST_VLAN_ADD,
38 DSA_NOTIFIER_HOST_VLAN_DEL,
bfcb8132 39 DSA_NOTIFIER_MTU,
53da0eba 40 DSA_NOTIFIER_TAG_PROTO,
dc452a47 41 DSA_NOTIFIER_TAG_PROTO_CONNECT,
7f297314 42 DSA_NOTIFIER_TAG_PROTO_DISCONNECT,
c64b9c05
VO		 43 DSA_NOTIFIER_TAG_8021Q_VLAN_ADD,
44 DSA_NOTIFIER_TAG_8021Q_VLAN_DEL,
295ab96f 45 DSA_NOTIFIER_MASTER_STATE_CHANGE,
52c96f9d
VD		 46};
47
1faabf74
VD		 48/* DSA_NOTIFIER_AGEING_TIME */
49struct dsa_notifier_ageing_time_info {
1faabf74 50 unsigned int ageing_time;
1faabf74
VD		 51};
52
52c96f9d
VD		 53/* DSA_NOTIFIER_BRIDGE_* */
54struct dsa_notifier_bridge_info {
d3eed0e5 55 struct dsa_bridge bridge;
f66a6a69 56 int tree_index;
52c96f9d
VD		 57 int sw_index;
58 int port;
b079922b 59 bool tx_fwd_offload;
52c96f9d
VD		 60};
61
685fb6a4
VD		 62/* DSA_NOTIFIER_FDB_* */
63struct dsa_notifier_fdb_info {
685fb6a4
VD		 64 int sw_index;
65 int port;
2acf4e6a
AS		 66 const unsigned char *addr;
67 u16 vid;
685fb6a4
VD		 68};
69
8ae5bcdc
VD		 70/* DSA_NOTIFIER_MDB_* */
71struct dsa_notifier_mdb_info {
72 const struct switchdev_obj_port_mdb *mdb;
8ae5bcdc
VD		 73 int sw_index;
74 int port;
75};
76
058102a6
TW		 77/* DSA_NOTIFIER_LAG_* */
78struct dsa_notifier_lag_info {
dedd6a00 79 struct dsa_lag lag;
058102a6
TW		 80 int sw_index;
81 int port;
82
83 struct netdev_lag_upper_info *info;
84};
85
d0c627b8
VD		 86/* DSA_NOTIFIER_VLAN_* */
87struct dsa_notifier_vlan_info {
88 const struct switchdev_obj_port_vlan *vlan;
d0c627b8
VD		 89 int sw_index;
90 int port;
31046a5f 91 struct netlink_ext_ack *extack;
d0c627b8
VD		 92};
93
bfcb8132
VO		 94/* DSA_NOTIFIER_MTU */
95struct dsa_notifier_mtu_info {
88faba20 96 bool targeted_match;
bfcb8132
VO		 97 int sw_index;
98 int port;
99 int mtu;
100};
101
53da0eba
VO		 102/* DSA_NOTIFIER_TAG_PROTO_* */
103struct dsa_notifier_tag_proto_info {
104 const struct dsa_device_ops *tag_ops;
105};
106
c64b9c05
VO		 107/* DSA_NOTIFIER_TAG_8021Q_VLAN_* */
108struct dsa_notifier_tag_8021q_vlan_info {
109 int tree_index;
110 int sw_index;
111 int port;
112 u16 vid;
113};
114
295ab96f
VO		 115/* DSA_NOTIFIER_MASTER_STATE_CHANGE */
116struct dsa_notifier_master_state_info {
117 const struct net_device *master;
118 bool operational;
119};
120
c4bb76a9
VO		 121struct dsa_switchdev_event_work {
122 struct dsa_switch *ds;
123 int port;
4bed397c 124 struct net_device *dev;
c4bb76a9
VO		 125 struct work_struct work;
126 unsigned long event;
127 /* Specific for SWITCHDEV_FDB_ADD_TO_DEVICE and
128 * SWITCHDEV_FDB_DEL_TO_DEVICE
129 */
130 unsigned char addr[ETH_ALEN];
131 u16 vid;
3dc80afc 132 bool host_addr;
c4bb76a9
VO		 133};
134
91da11f8 135struct dsa_slave_priv {
15240248 136 /* Copy of CPU port xmit for faster access in slave transmit hot path */
4ed70ce9 137 struct sk_buff * (*xmit)(struct sk_buff *skb,
5075314e 138 struct net_device *dev);
e84665c9 139
e131a563
AL		 140 struct gro_cells gcells;
141
afdcf151
VD		 142 /* DSA port data, such as switch, port index, etc. */
143 struct dsa_port *dp;
e84665c9 144
04ff53f9
FF		 145#ifdef CONFIG_NET_POLL_CONTROLLER
146 struct netpoll *netpoll;
147#endif
f50f2127
FF		 148
149 /* TC context */
150 struct list_head mall_tc_list;
91da11f8
LB		 151};
152
91da11f8 153/* dsa.c */
c39e2a1d 154const struct dsa_device_ops *dsa_tag_driver_get(int tag_protocol);
4dad81ee 155void dsa_tag_driver_put(const struct dsa_device_ops *ops);
53da0eba 156const struct dsa_device_ops *dsa_find_tagger_by_name(const char *buf);
c39e2a1d 157
c9eb3e0f 158bool dsa_schedule_work(struct work_struct *work);
98cdb480 159const char *dsa_tag_protocol_to_str(const struct dsa_device_ops *ops);
91da11f8 160
4e500251
VO		 161static inline int dsa_tag_protocol_overhead(const struct dsa_device_ops *ops)
162{
163 return ops->needed_headroom + ops->needed_tailroom;
164}
165
f2f23566 166/* master.c */
17a22fcf
VD		 167int dsa_master_setup(struct net_device *dev, struct dsa_port *cpu_dp);
168void dsa_master_teardown(struct net_device *dev);
f2f23566 169
2231c43b
VD		 170static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
171 int device, int port)
3775b1b7 172{
2f657a60
VD		 173 struct dsa_port *cpu_dp = dev->dsa_ptr;
174 struct dsa_switch_tree *dst = cpu_dp->dst;
7b9a2f4b 175 struct dsa_port *dp;
3775b1b7 176
7b9a2f4b
VD		 177 list_for_each_entry(dp, &dst->ports, list)
178 if (dp->ds->index == device && dp->index == port &&
179 dp->type == DSA_PORT_TYPE_USER)
180 return dp->slave;
3775b1b7 181
7b9a2f4b 182 return NULL;
3775b1b7
VD		 183}
184
a40c175b 185/* port.c */
53da0eba
VO		 186void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
187 const struct dsa_device_ops *tag_ops);
39f32101 188int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age);
8640f8dc 189int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy);
fb8a6a2b 190int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
8640f8dc 191void dsa_port_disable_rt(struct dsa_port *dp);
75104db0 192void dsa_port_disable(struct dsa_port *dp);
2afc526a
VO		 193int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br,
194 struct netlink_ext_ack *extack);
4e51bf44 195void dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br);
cfbed329 196void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br);
058102a6
TW		 197int dsa_port_lag_change(struct dsa_port *dp,
198 struct netdev_lag_lower_state_info *linfo);
199int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev,
2afc526a
VO		 200 struct netdev_lag_upper_info *uinfo,
201 struct netlink_ext_ack *extack);
4e51bf44 202void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag_dev);
058102a6 203void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev);
89153ed6
VO		 204int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
205 struct netlink_ext_ack *extack);
54a0ed0d 206bool dsa_port_skip_vlan_configuration(struct dsa_port *dp);
bae33f2b 207int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock);
bfcb8132 208int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
88faba20 209 bool targeted_match);
2acf4e6a
AS		 210int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
211 u16 vid);
212int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr,
213 u16 vid);
3dc80afc
VO		 214int dsa_port_host_fdb_add(struct dsa_port *dp, const unsigned char *addr,
215 u16 vid);
216int dsa_port_host_fdb_del(struct dsa_port *dp, const unsigned char *addr,
217 u16 vid);
de40fc5d 218int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data);
bb9f6031 219int dsa_port_mdb_add(const struct dsa_port *dp,
ffb68fc5 220 const struct switchdev_obj_port_mdb *mdb);
bb9f6031 221int dsa_port_mdb_del(const struct dsa_port *dp,
3a9afea3 222 const struct switchdev_obj_port_mdb *mdb);
b8e997c4
VO		 223int dsa_port_host_mdb_add(const struct dsa_port *dp,
224 const struct switchdev_obj_port_mdb *mdb);
225int dsa_port_host_mdb_del(const struct dsa_port *dp,
226 const struct switchdev_obj_port_mdb *mdb);
e18f4c18 227int dsa_port_pre_bridge_flags(const struct dsa_port *dp,
a8b659e7
VO		 228 struct switchdev_brport_flags flags,
229 struct netlink_ext_ack *extack);
045c45d1 230int dsa_port_bridge_flags(struct dsa_port *dp,
a8b659e7
VO		 231 struct switchdev_brport_flags flags,
232 struct netlink_ext_ack *extack);
076e7133 233int dsa_port_vlan_add(struct dsa_port *dp,
31046a5f
VO		 234 const struct switchdev_obj_port_vlan *vlan,
235 struct netlink_ext_ack *extack);
076e7133
VD		 236int dsa_port_vlan_del(struct dsa_port *dp,
237 const struct switchdev_obj_port_vlan *vlan);
134ef238
VO		 238int dsa_port_host_vlan_add(struct dsa_port *dp,
239 const struct switchdev_obj_port_vlan *vlan,
240 struct netlink_ext_ack *extack);
241int dsa_port_host_vlan_del(struct dsa_port *dp,
242 const struct switchdev_obj_port_vlan *vlan);
c595c433
HV		 243int dsa_port_mrp_add(const struct dsa_port *dp,
244 const struct switchdev_obj_mrp *mrp);
245int dsa_port_mrp_del(const struct dsa_port *dp,
246 const struct switchdev_obj_mrp *mrp);
247int dsa_port_mrp_add_ring_role(const struct dsa_port *dp,
248 const struct switchdev_obj_ring_role_mrp *mrp);
249int dsa_port_mrp_del_ring_role(const struct dsa_port *dp,
250 const struct switchdev_obj_ring_role_mrp *mrp);
21bd64bd 251int dsa_port_phylink_create(struct dsa_port *dp);
33615367
SR		 252int dsa_port_link_register_of(struct dsa_port *dp);
253void dsa_port_link_unregister_of(struct dsa_port *dp);
18596f50
GM		 254int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr);
255void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr);
724395f4
VO		 256int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast);
257void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast);
57ab1ca2 258
91da11f8 259/* slave.c */
5075314e 260extern const struct dsa_device_ops notag_netdev_ops;
010e269f
VO		 261extern struct notifier_block dsa_slave_switchdev_notifier;
262extern struct notifier_block dsa_slave_switchdev_blocking_notifier;
263
91da11f8 264void dsa_slave_mii_bus_init(struct dsa_switch *ds);
951259aa 265int dsa_slave_create(struct dsa_port *dp);
cda5c15b 266void dsa_slave_destroy(struct net_device *slave_dev);
24462549
FF		 267int dsa_slave_suspend(struct net_device *slave_dev);
268int dsa_slave_resume(struct net_device *slave_dev);
88e4f0ca
VD		 269int dsa_slave_register_notifier(void);
270void dsa_slave_unregister_notifier(void);
53da0eba
VO		 271void dsa_slave_setup_tagger(struct net_device *slave);
272int dsa_slave_change_mtu(struct net_device *dev, int new_mtu);
06cfb2df
VO		 273int dsa_slave_manage_vlan_filtering(struct net_device *dev,
274 bool vlan_filtering);
91da11f8 275
d945097b
VD		 276static inline struct dsa_port *dsa_slave_to_port(const struct net_device *dev)
277{
278 struct dsa_slave_priv *p = netdev_priv(dev);
279
280 return p->dp;
281}
282
d0006b00
VD		 283static inline struct net_device *
284dsa_slave_to_master(const struct net_device *dev)
285{
286 struct dsa_port *dp = dsa_slave_to_port(dev);
287
f8b8b1cd 288 return dp->cpu_dp->master;
d0006b00
VD		 289}
290
412a1526
VO		 291/* If under a bridge with vlan_filtering=0, make sure to send pvid-tagged
292 * frames as untagged, since the bridge will not untag them.
293 */
294static inline struct sk_buff *dsa_untag_bridge_pvid(struct sk_buff *skb)
295{
296 struct dsa_port *dp = dsa_slave_to_port(skb->dev);
36cbf39b 297 struct net_device *br = dsa_port_bridge_dev_get(dp);
412a1526
VO		 298 struct net_device *dev = skb->dev;
299 struct net_device *upper_dev;
412a1526
VO		 300 u16 vid, pvid, proto;
301 int err;
302
303 if (!br || br_vlan_enabled(br))
304 return skb;
305
306 err = br_vlan_get_proto(br, &proto);
307 if (err)
308 return skb;
309
310 /* Move VLAN tag from data to hwaccel */
a348292b 311 if (!skb_vlan_tag_present(skb) && skb->protocol == htons(proto)) {
412a1526
VO		 312 skb = skb_vlan_untag(skb);
313 if (!skb)
314 return NULL;
315 }
316
317 if (!skb_vlan_tag_present(skb))
318 return skb;
319
320 vid = skb_vlan_tag_get_id(skb);
321
322 /* We already run under an RCU read-side critical section since
323 * we are called from netif_receive_skb_list_internal().
324 */
325 err = br_vlan_get_pvid_rcu(dev, &pvid);
326 if (err)
327 return skb;
328
329 if (vid != pvid)
330 return skb;
331
332 /* The sad part about attempting to untag from DSA is that we
333 * don't know, unless we check, if the skb will end up in
334 * the bridge's data path - br_allowed_ingress() - or not.
335 * For example, there might be an 8021q upper for the
336 * default_pvid of the bridge, which will steal VLAN-tagged traffic
337 * from the bridge's data path. This is a configuration that DSA
338 * supports because vlan_filtering is 0. In that case, we should
339 * definitely keep the tag, to make sure it keeps working.
340 */
3a68844d
FF		 341 upper_dev = __vlan_find_dev_deep_rcu(br, htons(proto), vid);
342 if (upper_dev)
343 return skb;
412a1526
VO		 344
345 __vlan_hwaccel_clear_tag(skb);
346
347 return skb;
348}
349
884be12f
VO		 350/* For switches without hardware support for DSA tagging to be able
351 * to support termination through the bridge.
352 */
353static inline struct net_device *
354dsa_find_designated_bridge_port_by_vid(struct net_device *master, u16 vid)
355{
356 struct dsa_port *cpu_dp = master->dsa_ptr;
357 struct dsa_switch_tree *dst = cpu_dp->dst;
358 struct bridge_vlan_info vinfo;
359 struct net_device *slave;
360 struct dsa_port *dp;
361 int err;
362
363 list_for_each_entry(dp, &dst->ports, list) {
364 if (dp->type != DSA_PORT_TYPE_USER)
365 continue;
366
d3eed0e5 367 if (!dp->bridge)
884be12f
VO		 368 continue;
369
370 if (dp->stp_state != BR_STATE_LEARNING &&
371 dp->stp_state != BR_STATE_FORWARDING)
372 continue;
373
374 /* Since the bridge might learn this packet, keep the CPU port
375 * affinity with the port that will be used for the reply on
376 * xmit.
377 */
378 if (dp->cpu_dp != cpu_dp)
379 continue;
380
381 slave = dp->slave;
382
383 err = br_vlan_get_info_rcu(slave, vid, &vinfo);
384 if (err)
385 continue;
386
387 return slave;
388 }
389
390 return NULL;
391}
392
bea79078
VO		 393/* If the ingress port offloads the bridge, we mark the frame as autonomously
394 * forwarded by hardware, so the software bridge doesn't forward in twice, back
395 * to us, because we already did. However, if we're in fallback mode and we do
d3eed0e5 396 * software bridging, we are not offloading it, therefore the dp->bridge
bea79078
VO		 397 * pointer is not populated, and flooding needs to be done by software (we are
398 * effectively operating in standalone ports mode).
399 */
400static inline void dsa_default_offload_fwd_mark(struct sk_buff *skb)
401{
402 struct dsa_port *dp = dsa_slave_to_port(skb->dev);
403
d3eed0e5 404 skb->offload_fwd_mark = !!(dp->bridge);
bea79078
VO		 405}
406
f1dacd7a
VO		 407/* Helper for removing DSA header tags from packets in the RX path.
408 * Must not be called before skb_pull(len).
409 * skb->data
410 * |
411 * v
412 * | | | | | | | | | | | | | | | | | | |
413 * +-----------------------+-----------------------+---------------+-------+
414 * | Destination MAC | Source MAC | DSA header | EType |
415 * +-----------------------+-----------------------+---------------+-------+
416 * | |
417 * <----- len -----> <----- len ----->
418 * |
419 * >>>>>>> v
420 * >>>>>>> | | | | | | | | | | | | | | |
421 * >>>>>>> +-----------------------+-----------------------+-------+
422 * >>>>>>> | Destination MAC | Source MAC | EType |
423 * +-----------------------+-----------------------+-------+
424 * ^
425 * |
426 * skb->data
427 */
428static inline void dsa_strip_etype_header(struct sk_buff *skb, int len)
429{
430 memmove(skb->data - ETH_HLEN, skb->data - ETH_HLEN - len, 2 * ETH_ALEN);
431}
432
6bef794d
VO		 433/* Helper for creating space for DSA header tags in TX path packets.
434 * Must not be called before skb_push(len).
435 *
436 * Before:
437 *
438 * <<<<<<< | | | | | | | | | | | | | | |
439 * ^ <<<<<<< +-----------------------+-----------------------+-------+
440 * | <<<<<<< | Destination MAC | Source MAC | EType |
441 * | +-----------------------+-----------------------+-------+
442 * <----- len ----->
443 * |
444 * |
445 * skb->data
446 *
447 * After:
448 *
449 * | | | | | | | | | | | | | | | | | | |
450 * +-----------------------+-----------------------+---------------+-------+
451 * | Destination MAC | Source MAC | DSA header | EType |
452 * +-----------------------+-----------------------+---------------+-------+
453 * ^ | |
454 * | <----- len ----->
455 * skb->data
456 */
457static inline void dsa_alloc_etype_header(struct sk_buff *skb, int len)
458{
459 memmove(skb->data, skb->data + len, 2 * ETH_ALEN);
460}
461
5d928ff4
VO		 462/* On RX, eth_type_trans() on the DSA master pulls ETH_HLEN bytes starting from
463 * skb_mac_header(skb), which leaves skb->data pointing at the first byte after
464 * what the DSA master perceives as the EtherType (the beginning of the L3
465 * protocol). Since DSA EtherType header taggers treat the EtherType as part of
466 * the DSA tag itself, and the EtherType is 2 bytes in length, the DSA header
467 * is located 2 bytes behind skb->data. Note that EtherType in this context
468 * means the first 2 bytes of the DSA header, not the encapsulated EtherType
469 * that will become visible after the DSA header is stripped.
470 */
471static inline void *dsa_etype_header_pos_rx(struct sk_buff *skb)
472{
473 return skb->data - 2;
474}
475
a72808b6
VO		 476/* On TX, skb->data points to skb_mac_header(skb), which means that EtherType
477 * header taggers start exactly where the EtherType is (the EtherType is
478 * treated as part of the DSA header).
479 */
480static inline void *dsa_etype_header_pos_tx(struct sk_buff *skb)
481{
482 return skb->data + 2 * ETH_ALEN;
483}
484
f515f192
VD		 485/* switch.c */
486int dsa_switch_register_notifier(struct dsa_switch *ds);
487void dsa_switch_unregister_notifier(struct dsa_switch *ds);
bff33f7e
VO		 488
489/* dsa2.c */
dedd6a00
VO		 490void dsa_lag_map(struct dsa_switch_tree *dst, struct dsa_lag *lag);
491void dsa_lag_unmap(struct dsa_switch_tree *dst, struct dsa_lag *lag);
492struct dsa_lag *dsa_tree_lag_find(struct dsa_switch_tree *dst,
493 const struct net_device *lag_dev);
886f8e26
VO		 494int dsa_tree_notify(struct dsa_switch_tree *dst, unsigned long e, void *v);
495int dsa_broadcast(unsigned long e, void *v);
53da0eba
VO		 496int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
497 struct net_device *master,
498 const struct dsa_device_ops *tag_ops,
499 const struct dsa_device_ops *old_tag_ops);
295ab96f
VO		 500void dsa_tree_master_admin_state_change(struct dsa_switch_tree *dst,
501 struct net_device *master,
502 bool up);
503void dsa_tree_master_oper_state_change(struct dsa_switch_tree *dst,
504 struct net_device *master,
505 bool up);
3f9bb030
VO		 506unsigned int dsa_bridge_num_get(const struct net_device *bridge_dev, int max);
507void dsa_bridge_num_put(const struct net_device *bridge_dev,
508 unsigned int bridge_num);
d3eed0e5
VO		 509struct dsa_bridge *dsa_tree_bridge_find(struct dsa_switch_tree *dst,
510 const struct net_device *br);
058102a6 511
e19cc13c
VO		 512/* tag_8021q.c */
513int dsa_tag_8021q_bridge_join(struct dsa_switch *ds,
514 struct dsa_notifier_bridge_info *info);
515int dsa_tag_8021q_bridge_leave(struct dsa_switch *ds,
516 struct dsa_notifier_bridge_info *info);
c64b9c05
VO		 517int dsa_switch_tag_8021q_vlan_add(struct dsa_switch *ds,
518 struct dsa_notifier_tag_8021q_vlan_info *info);
519int dsa_switch_tag_8021q_vlan_del(struct dsa_switch *ds,
520 struct dsa_notifier_tag_8021q_vlan_info *info);
e19cc13c 521
bff33f7e
VO		 522extern struct list_head dsa_tree_list;
523
91da11f8 524#endif
Linux 6.x block layer and io_uring tree(s)