Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
a40c175b VD |
2 | /* |
3 | * Handling of a single switch port | |
4 | * | |
5 | * Copyright (c) 2017 Savoir-faire Linux Inc. | |
6 | * Vivien Didelot <vivien.didelot@savoirfairelinux.com> | |
a40c175b VD |
7 | */ |
8 | ||
9 | #include <linux/if_bridge.h> | |
95f510d0 | 10 | #include <linux/netdevice.h> |
cfbed329 | 11 | #include <linux/notifier.h> |
57ab1ca2 VD |
12 | #include <linux/of_mdio.h> |
13 | #include <linux/of_net.h> | |
a40c175b | 14 | |
47d2ce03 | 15 | #include "dsa.h" |
022bba63 | 16 | #include "port.h" |
09f92341 | 17 | #include "slave.h" |
0c603136 | 18 | #include "switch.h" |
19d05ea7 | 19 | #include "tag_8021q.h" |
a40c175b | 20 | |
886f8e26 VO |
21 | /** |
22 | * dsa_port_notify - Notify the switching fabric of changes to a port | |
23 | * @dp: port on which change occurred | |
24 | * @e: event, must be of type DSA_NOTIFIER_* | |
25 | * @v: event-specific value. | |
26 | * | |
27 | * Notify all switches in the DSA tree that this port's switch belongs to, | |
28 | * including this switch itself, of an event. Allows the other switches to | |
29 | * reconfigure themselves for cross-chip operations. Can also be used to | |
30 | * reconfigure ports without net_devices (CPU ports, DSA links) whenever | |
31 | * a user port's state changes. | |
32 | */ | |
bb9f6031 | 33 | static int dsa_port_notify(const struct dsa_port *dp, unsigned long e, void *v) |
cfbed329 | 34 | { |
886f8e26 | 35 | return dsa_tree_notify(dp->ds->dst, e, v); |
cfbed329 VD |
36 | } |
37 | ||
7414af30 | 38 | static void dsa_port_notify_bridge_fdb_flush(const struct dsa_port *dp, u16 vid) |
9264e4ad VO |
39 | { |
40 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); | |
41 | struct switchdev_notifier_fdb_info info = { | |
7414af30 | 42 | .vid = vid, |
9264e4ad VO |
43 | }; |
44 | ||
45 | /* When the port becomes standalone it has already left the bridge. | |
46 | * Don't notify the bridge in that case. | |
47 | */ | |
48 | if (!brport_dev) | |
49 | return; | |
50 | ||
51 | call_switchdev_notifiers(SWITCHDEV_FDB_FLUSH_TO_BRIDGE, | |
52 | brport_dev, &info.info, NULL); | |
53 | } | |
54 | ||
045c45d1 VO |
55 | static void dsa_port_fast_age(const struct dsa_port *dp) |
56 | { | |
57 | struct dsa_switch *ds = dp->ds; | |
58 | ||
59 | if (!ds->ops->port_fast_age) | |
60 | return; | |
61 | ||
62 | ds->ops->port_fast_age(ds, dp->index); | |
9264e4ad | 63 | |
7414af30 TW |
64 | /* flush all VLANs */ |
65 | dsa_port_notify_bridge_fdb_flush(dp, 0); | |
66 | } | |
67 | ||
68 | static int dsa_port_vlan_fast_age(const struct dsa_port *dp, u16 vid) | |
69 | { | |
70 | struct dsa_switch *ds = dp->ds; | |
71 | int err; | |
72 | ||
73 | if (!ds->ops->port_vlan_fast_age) | |
74 | return -EOPNOTSUPP; | |
75 | ||
76 | err = ds->ops->port_vlan_fast_age(ds, dp->index, vid); | |
77 | ||
78 | if (!err) | |
79 | dsa_port_notify_bridge_fdb_flush(dp, vid); | |
80 | ||
81 | return err; | |
82 | } | |
83 | ||
84 | static int dsa_port_msti_fast_age(const struct dsa_port *dp, u16 msti) | |
85 | { | |
86 | DECLARE_BITMAP(vids, VLAN_N_VID) = { 0 }; | |
87 | int err, vid; | |
88 | ||
89 | err = br_mst_get_info(dsa_port_bridge_dev_get(dp), msti, vids); | |
90 | if (err) | |
91 | return err; | |
92 | ||
93 | for_each_set_bit(vid, vids, VLAN_N_VID) { | |
94 | err = dsa_port_vlan_fast_age(dp, vid); | |
95 | if (err) | |
96 | return err; | |
97 | } | |
98 | ||
99 | return 0; | |
045c45d1 VO |
100 | } |
101 | ||
a4ffe09f VO |
102 | static bool dsa_port_can_configure_learning(struct dsa_port *dp) |
103 | { | |
104 | struct switchdev_brport_flags flags = { | |
105 | .mask = BR_LEARNING, | |
106 | }; | |
107 | struct dsa_switch *ds = dp->ds; | |
108 | int err; | |
109 | ||
110 | if (!ds->ops->port_bridge_flags || !ds->ops->port_pre_bridge_flags) | |
111 | return false; | |
112 | ||
113 | err = ds->ops->port_pre_bridge_flags(ds, dp->index, flags, NULL); | |
114 | return !err; | |
115 | } | |
116 | ||
ed1fe1be VO |
117 | bool dsa_port_supports_hwtstamp(struct dsa_port *dp, struct ifreq *ifr) |
118 | { | |
119 | struct dsa_switch *ds = dp->ds; | |
120 | int err; | |
121 | ||
122 | if (!ds->ops->port_hwtstamp_get || !ds->ops->port_hwtstamp_set) | |
123 | return false; | |
124 | ||
125 | /* "See through" shim implementations of the "get" method. | |
126 | * This will clobber the ifreq structure, but we will either return an | |
127 | * error, or the master will overwrite it with proper values. | |
128 | */ | |
129 | err = ds->ops->port_hwtstamp_get(ds, dp->index, ifr); | |
130 | return err != -EOPNOTSUPP; | |
131 | } | |
132 | ||
39f32101 | 133 | int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age) |
a40c175b VD |
134 | { |
135 | struct dsa_switch *ds = dp->ds; | |
136 | int port = dp->index; | |
137 | ||
bae33f2b VO |
138 | if (!ds->ops->port_stp_state_set) |
139 | return -EOPNOTSUPP; | |
a40c175b | 140 | |
bae33f2b | 141 | ds->ops->port_stp_state_set(ds, port, state); |
a40c175b | 142 | |
a4ffe09f VO |
143 | if (!dsa_port_can_configure_learning(dp) || |
144 | (do_fast_age && dp->learning)) { | |
a40c175b VD |
145 | /* Fast age FDB entries or flush appropriate forwarding database |
146 | * for the given port, if we are moving it from Learning or | |
147 | * Forwarding state, to Disabled or Blocking or Listening state. | |
39f32101 VO |
148 | * Ports that were standalone before the STP state change don't |
149 | * need to fast age the FDB, since address learning is off in | |
150 | * standalone mode. | |
a40c175b VD |
151 | */ |
152 | ||
153 | if ((dp->stp_state == BR_STATE_LEARNING || | |
154 | dp->stp_state == BR_STATE_FORWARDING) && | |
155 | (state == BR_STATE_DISABLED || | |
156 | state == BR_STATE_BLOCKING || | |
157 | state == BR_STATE_LISTENING)) | |
045c45d1 | 158 | dsa_port_fast_age(dp); |
a40c175b VD |
159 | } |
160 | ||
161 | dp->stp_state = state; | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
39f32101 VO |
166 | static void dsa_port_set_state_now(struct dsa_port *dp, u8 state, |
167 | bool do_fast_age) | |
a40c175b | 168 | { |
211987f3 | 169 | struct dsa_switch *ds = dp->ds; |
a40c175b VD |
170 | int err; |
171 | ||
39f32101 | 172 | err = dsa_port_set_state(dp, state, do_fast_age); |
211987f3 VO |
173 | if (err && err != -EOPNOTSUPP) { |
174 | dev_err(ds->dev, "port %d failed to set STP state %u: %pe\n", | |
175 | dp->index, state, ERR_PTR(err)); | |
176 | } | |
a40c175b | 177 | } |
cfbed329 | 178 | |
7414af30 TW |
179 | int dsa_port_set_mst_state(struct dsa_port *dp, |
180 | const struct switchdev_mst_state *state, | |
181 | struct netlink_ext_ack *extack) | |
182 | { | |
183 | struct dsa_switch *ds = dp->ds; | |
184 | u8 prev_state; | |
185 | int err; | |
186 | ||
187 | if (!ds->ops->port_mst_state_set) | |
188 | return -EOPNOTSUPP; | |
189 | ||
190 | err = br_mst_get_state(dsa_port_to_bridge_port(dp), state->msti, | |
191 | &prev_state); | |
192 | if (err) | |
193 | return err; | |
194 | ||
195 | err = ds->ops->port_mst_state_set(ds, dp->index, state); | |
196 | if (err) | |
197 | return err; | |
198 | ||
199 | if (!(dp->learning && | |
200 | (prev_state == BR_STATE_LEARNING || | |
201 | prev_state == BR_STATE_FORWARDING) && | |
202 | (state->state == BR_STATE_DISABLED || | |
203 | state->state == BR_STATE_BLOCKING || | |
204 | state->state == BR_STATE_LISTENING))) | |
205 | return 0; | |
206 | ||
207 | err = dsa_port_msti_fast_age(dp, state->msti); | |
208 | if (err) | |
209 | NL_SET_ERR_MSG_MOD(extack, | |
210 | "Unable to flush associated VLANs"); | |
211 | ||
212 | return 0; | |
213 | } | |
214 | ||
8640f8dc | 215 | int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy) |
fb8a6a2b | 216 | { |
fb8a6a2b VD |
217 | struct dsa_switch *ds = dp->ds; |
218 | int port = dp->index; | |
219 | int err; | |
220 | ||
221 | if (ds->ops->port_enable) { | |
222 | err = ds->ops->port_enable(ds, port, phy); | |
223 | if (err) | |
224 | return err; | |
225 | } | |
226 | ||
d3eed0e5 | 227 | if (!dp->bridge) |
39f32101 | 228 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING, false); |
fb8a6a2b | 229 | |
8640f8dc RK |
230 | if (dp->pl) |
231 | phylink_start(dp->pl); | |
232 | ||
fb8a6a2b VD |
233 | return 0; |
234 | } | |
235 | ||
8640f8dc RK |
236 | int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy) |
237 | { | |
238 | int err; | |
239 | ||
240 | rtnl_lock(); | |
241 | err = dsa_port_enable_rt(dp, phy); | |
242 | rtnl_unlock(); | |
243 | ||
244 | return err; | |
245 | } | |
246 | ||
247 | void dsa_port_disable_rt(struct dsa_port *dp) | |
fb8a6a2b VD |
248 | { |
249 | struct dsa_switch *ds = dp->ds; | |
250 | int port = dp->index; | |
251 | ||
8640f8dc RK |
252 | if (dp->pl) |
253 | phylink_stop(dp->pl); | |
254 | ||
d3eed0e5 | 255 | if (!dp->bridge) |
39f32101 | 256 | dsa_port_set_state_now(dp, BR_STATE_DISABLED, false); |
fb8a6a2b VD |
257 | |
258 | if (ds->ops->port_disable) | |
75104db0 | 259 | ds->ops->port_disable(ds, port); |
fb8a6a2b VD |
260 | } |
261 | ||
8640f8dc RK |
262 | void dsa_port_disable(struct dsa_port *dp) |
263 | { | |
264 | rtnl_lock(); | |
265 | dsa_port_disable_rt(dp); | |
266 | rtnl_unlock(); | |
267 | } | |
268 | ||
8e9e678e VO |
269 | static void dsa_port_reset_vlan_filtering(struct dsa_port *dp, |
270 | struct dsa_bridge bridge) | |
271 | { | |
272 | struct netlink_ext_ack extack = {0}; | |
273 | bool change_vlan_filtering = false; | |
274 | struct dsa_switch *ds = dp->ds; | |
1699b4d5 | 275 | struct dsa_port *other_dp; |
8e9e678e VO |
276 | bool vlan_filtering; |
277 | int err; | |
278 | ||
279 | if (ds->needs_standalone_vlan_filtering && | |
280 | !br_vlan_enabled(bridge.dev)) { | |
281 | change_vlan_filtering = true; | |
282 | vlan_filtering = true; | |
283 | } else if (!ds->needs_standalone_vlan_filtering && | |
284 | br_vlan_enabled(bridge.dev)) { | |
285 | change_vlan_filtering = true; | |
286 | vlan_filtering = false; | |
287 | } | |
288 | ||
289 | /* If the bridge was vlan_filtering, the bridge core doesn't trigger an | |
290 | * event for changing vlan_filtering setting upon slave ports leaving | |
291 | * it. That is a good thing, because that lets us handle it and also | |
292 | * handle the case where the switch's vlan_filtering setting is global | |
293 | * (not per port). When that happens, the correct moment to trigger the | |
294 | * vlan_filtering callback is only when the last port leaves the last | |
295 | * VLAN-aware bridge. | |
296 | */ | |
297 | if (change_vlan_filtering && ds->vlan_filtering_is_global) { | |
1699b4d5 VO |
298 | dsa_switch_for_each_port(other_dp, ds) { |
299 | struct net_device *br = dsa_port_bridge_dev_get(other_dp); | |
8e9e678e VO |
300 | |
301 | if (br && br_vlan_enabled(br)) { | |
302 | change_vlan_filtering = false; | |
303 | break; | |
304 | } | |
305 | } | |
306 | } | |
307 | ||
308 | if (!change_vlan_filtering) | |
309 | return; | |
310 | ||
311 | err = dsa_port_vlan_filtering(dp, vlan_filtering, &extack); | |
312 | if (extack._msg) { | |
313 | dev_err(ds->dev, "port %d: %s\n", dp->index, | |
314 | extack._msg); | |
315 | } | |
316 | if (err && err != -EOPNOTSUPP) { | |
317 | dev_err(ds->dev, | |
318 | "port %d failed to reset VLAN filtering to %d: %pe\n", | |
319 | dp->index, vlan_filtering, ERR_PTR(err)); | |
320 | } | |
321 | } | |
322 | ||
5961d6a1 VO |
323 | static int dsa_port_inherit_brport_flags(struct dsa_port *dp, |
324 | struct netlink_ext_ack *extack) | |
5e38c158 | 325 | { |
5961d6a1 | 326 | const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | |
b9e8b58f | 327 | BR_BCAST_FLOOD | BR_PORT_LOCKED; |
5961d6a1 VO |
328 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
329 | int flag, err; | |
5e38c158 | 330 | |
5961d6a1 VO |
331 | for_each_set_bit(flag, &mask, 32) { |
332 | struct switchdev_brport_flags flags = {0}; | |
5e38c158 | 333 | |
5961d6a1 | 334 | flags.mask = BIT(flag); |
e18f4c18 | 335 | |
5961d6a1 VO |
336 | if (br_port_flag_is_set(brport_dev, BIT(flag))) |
337 | flags.val = BIT(flag); | |
5e38c158 | 338 | |
5961d6a1 VO |
339 | err = dsa_port_bridge_flags(dp, flags, extack); |
340 | if (err && err != -EOPNOTSUPP) | |
341 | return err; | |
342 | } | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static void dsa_port_clear_brport_flags(struct dsa_port *dp) | |
348 | { | |
349 | const unsigned long val = BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD; | |
350 | const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | | |
b9e8b58f | 351 | BR_BCAST_FLOOD | BR_PORT_LOCKED; |
5961d6a1 VO |
352 | int flag, err; |
353 | ||
354 | for_each_set_bit(flag, &mask, 32) { | |
355 | struct switchdev_brport_flags flags = {0}; | |
356 | ||
357 | flags.mask = BIT(flag); | |
358 | flags.val = val & BIT(flag); | |
359 | ||
360 | err = dsa_port_bridge_flags(dp, flags, NULL); | |
361 | if (err && err != -EOPNOTSUPP) | |
362 | dev_err(dp->ds->dev, | |
363 | "failed to clear bridge port flag %lu: %pe\n", | |
364 | flags.val, ERR_PTR(err)); | |
5e38c158 VO |
365 | } |
366 | } | |
367 | ||
4e51bf44 VO |
368 | static int dsa_port_switchdev_sync_attrs(struct dsa_port *dp, |
369 | struct netlink_ext_ack *extack) | |
5961d6a1 | 370 | { |
010e269f | 371 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
36cbf39b | 372 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
5961d6a1 VO |
373 | int err; |
374 | ||
375 | err = dsa_port_inherit_brport_flags(dp, extack); | |
376 | if (err) | |
377 | return err; | |
378 | ||
39f32101 | 379 | err = dsa_port_set_state(dp, br_port_get_stp_state(brport_dev), false); |
010e269f VO |
380 | if (err && err != -EOPNOTSUPP) |
381 | return err; | |
382 | ||
383 | err = dsa_port_vlan_filtering(dp, br_vlan_enabled(br), extack); | |
384 | if (err && err != -EOPNOTSUPP) | |
385 | return err; | |
386 | ||
010e269f VO |
387 | err = dsa_port_ageing_time(dp, br_get_ageing_time(br)); |
388 | if (err && err != -EOPNOTSUPP) | |
389 | return err; | |
390 | ||
74918945 VO |
391 | return 0; |
392 | } | |
393 | ||
8e9e678e VO |
394 | static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp, |
395 | struct dsa_bridge bridge) | |
5961d6a1 VO |
396 | { |
397 | /* Configure the port for standalone mode (no address learning, | |
398 | * flood everything). | |
399 | * The bridge only emits SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS events | |
400 | * when the user requests it through netlink or sysfs, but not | |
401 | * automatically at port join or leave, so we need to handle resetting | |
402 | * the brport flags ourselves. But we even prefer it that way, because | |
403 | * otherwise, some setups might never get the notification they need, | |
404 | * for example, when a port leaves a LAG that offloads the bridge, | |
405 | * it becomes standalone, but as far as the bridge is concerned, no | |
406 | * port ever left. | |
407 | */ | |
408 | dsa_port_clear_brport_flags(dp); | |
409 | ||
410 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
411 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
412 | */ | |
39f32101 | 413 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING, true); |
010e269f | 414 | |
8e9e678e | 415 | dsa_port_reset_vlan_filtering(dp, bridge); |
010e269f | 416 | |
010e269f VO |
417 | /* Ageing time may be global to the switch chip, so don't change it |
418 | * here because we have no good reason (or value) to change it to. | |
419 | */ | |
5961d6a1 VO |
420 | } |
421 | ||
947c8746 VO |
422 | static int dsa_port_bridge_create(struct dsa_port *dp, |
423 | struct net_device *br, | |
424 | struct netlink_ext_ack *extack) | |
425 | { | |
426 | struct dsa_switch *ds = dp->ds; | |
d3eed0e5 | 427 | struct dsa_bridge *bridge; |
947c8746 | 428 | |
d3eed0e5 VO |
429 | bridge = dsa_tree_bridge_find(ds->dst, br); |
430 | if (bridge) { | |
431 | refcount_inc(&bridge->refcount); | |
432 | dp->bridge = bridge; | |
947c8746 | 433 | return 0; |
d3eed0e5 VO |
434 | } |
435 | ||
436 | bridge = kzalloc(sizeof(*bridge), GFP_KERNEL); | |
437 | if (!bridge) | |
438 | return -ENOMEM; | |
439 | ||
440 | refcount_set(&bridge->refcount, 1); | |
441 | ||
442 | bridge->dev = br; | |
947c8746 | 443 | |
d3eed0e5 VO |
444 | bridge->num = dsa_bridge_num_get(br, ds->max_num_bridges); |
445 | if (ds->max_num_bridges && !bridge->num) { | |
947c8746 VO |
446 | NL_SET_ERR_MSG_MOD(extack, |
447 | "Range of offloadable bridges exceeded"); | |
d3eed0e5 | 448 | kfree(bridge); |
947c8746 | 449 | return -EOPNOTSUPP; |
123abc06 VO |
450 | } |
451 | ||
d3eed0e5 | 452 | dp->bridge = bridge; |
947c8746 VO |
453 | |
454 | return 0; | |
455 | } | |
456 | ||
457 | static void dsa_port_bridge_destroy(struct dsa_port *dp, | |
458 | const struct net_device *br) | |
459 | { | |
d3eed0e5 VO |
460 | struct dsa_bridge *bridge = dp->bridge; |
461 | ||
462 | dp->bridge = NULL; | |
947c8746 | 463 | |
d3eed0e5 VO |
464 | if (!refcount_dec_and_test(&bridge->refcount)) |
465 | return; | |
947c8746 | 466 | |
d3eed0e5 VO |
467 | if (bridge->num) |
468 | dsa_bridge_num_put(br, bridge->num); | |
947c8746 | 469 | |
d3eed0e5 | 470 | kfree(bridge); |
123abc06 VO |
471 | } |
472 | ||
332afc4c TW |
473 | static bool dsa_port_supports_mst(struct dsa_port *dp) |
474 | { | |
8e6598a7 TW |
475 | struct dsa_switch *ds = dp->ds; |
476 | ||
477 | return ds->ops->vlan_msti_set && | |
7414af30 TW |
478 | ds->ops->port_mst_state_set && |
479 | ds->ops->port_vlan_fast_age && | |
8e6598a7 | 480 | dsa_port_can_configure_learning(dp); |
332afc4c TW |
481 | } |
482 | ||
2afc526a VO |
483 | int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, |
484 | struct netlink_ext_ack *extack) | |
cfbed329 VD |
485 | { |
486 | struct dsa_notifier_bridge_info info = { | |
726816a1 | 487 | .dp = dp, |
06b9cce4 | 488 | .extack = extack, |
cfbed329 | 489 | }; |
2f5dc00f VO |
490 | struct net_device *dev = dp->slave; |
491 | struct net_device *brport_dev; | |
cfbed329 VD |
492 | int err; |
493 | ||
332afc4c TW |
494 | if (br_mst_enabled(br) && !dsa_port_supports_mst(dp)) |
495 | return -EOPNOTSUPP; | |
496 | ||
c1388063 RK |
497 | /* Here the interface is already bridged. Reflect the current |
498 | * configuration so that drivers can program their chips accordingly. | |
cfbed329 | 499 | */ |
947c8746 VO |
500 | err = dsa_port_bridge_create(dp, br, extack); |
501 | if (err) | |
502 | return err; | |
cfbed329 | 503 | |
2f5dc00f VO |
504 | brport_dev = dsa_port_to_bridge_port(dp); |
505 | ||
d3eed0e5 | 506 | info.bridge = *dp->bridge; |
f66a6a69 | 507 | err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info); |
5961d6a1 VO |
508 | if (err) |
509 | goto out_rollback; | |
cfbed329 | 510 | |
857fdd74 VO |
511 | /* Drivers which support bridge TX forwarding should set this */ |
512 | dp->bridge->tx_fwd_offload = info.tx_fwd_offload; | |
123abc06 | 513 | |
4e51bf44 VO |
514 | err = switchdev_bridge_port_offload(brport_dev, dev, dp, |
515 | &dsa_slave_switchdev_notifier, | |
516 | &dsa_slave_switchdev_blocking_notifier, | |
857fdd74 | 517 | dp->bridge->tx_fwd_offload, extack); |
5961d6a1 VO |
518 | if (err) |
519 | goto out_rollback_unbridge; | |
520 | ||
4e51bf44 | 521 | err = dsa_port_switchdev_sync_attrs(dp, extack); |
2f5dc00f VO |
522 | if (err) |
523 | goto out_rollback_unoffload; | |
524 | ||
5961d6a1 | 525 | return 0; |
cfbed329 | 526 | |
2f5dc00f | 527 | out_rollback_unoffload: |
4e51bf44 VO |
528 | switchdev_bridge_port_unoffload(brport_dev, dp, |
529 | &dsa_slave_switchdev_notifier, | |
530 | &dsa_slave_switchdev_blocking_notifier); | |
630fd482 | 531 | dsa_flush_workqueue(); |
5961d6a1 VO |
532 | out_rollback_unbridge: |
533 | dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); | |
534 | out_rollback: | |
947c8746 | 535 | dsa_port_bridge_destroy(dp, br); |
cfbed329 VD |
536 | return err; |
537 | } | |
538 | ||
4e51bf44 | 539 | void dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br) |
74918945 | 540 | { |
2f5dc00f VO |
541 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
542 | ||
09dba21b VO |
543 | /* Don't try to unoffload something that is not offloaded */ |
544 | if (!brport_dev) | |
545 | return; | |
546 | ||
4e51bf44 VO |
547 | switchdev_bridge_port_unoffload(brport_dev, dp, |
548 | &dsa_slave_switchdev_notifier, | |
549 | &dsa_slave_switchdev_blocking_notifier); | |
d7d0d423 VO |
550 | |
551 | dsa_flush_workqueue(); | |
74918945 VO |
552 | } |
553 | ||
cfbed329 VD |
554 | void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) |
555 | { | |
556 | struct dsa_notifier_bridge_info info = { | |
726816a1 | 557 | .dp = dp, |
cfbed329 VD |
558 | }; |
559 | int err; | |
560 | ||
342b6419 AÅ |
561 | /* If the port could not be offloaded to begin with, then |
562 | * there is nothing to do. | |
563 | */ | |
564 | if (!dp->bridge) | |
565 | return; | |
566 | ||
567 | info.bridge = *dp->bridge; | |
568 | ||
cfbed329 VD |
569 | /* Here the port is already unbridged. Reflect the current configuration |
570 | * so that drivers can program their chips accordingly. | |
571 | */ | |
947c8746 | 572 | dsa_port_bridge_destroy(dp, br); |
cfbed329 | 573 | |
f66a6a69 | 574 | err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); |
cfbed329 | 575 | if (err) |
ab97462b VO |
576 | dev_err(dp->ds->dev, |
577 | "port %d failed to notify DSA_NOTIFIER_BRIDGE_LEAVE: %pe\n", | |
578 | dp->index, ERR_PTR(err)); | |
cfbed329 | 579 | |
8e9e678e | 580 | dsa_port_switchdev_unsync_attrs(dp, info.bridge); |
cfbed329 | 581 | } |
4d61d304 | 582 | |
058102a6 TW |
583 | int dsa_port_lag_change(struct dsa_port *dp, |
584 | struct netdev_lag_lower_state_info *linfo) | |
585 | { | |
586 | struct dsa_notifier_lag_info info = { | |
726816a1 | 587 | .dp = dp, |
058102a6 TW |
588 | }; |
589 | bool tx_enabled; | |
590 | ||
dedd6a00 | 591 | if (!dp->lag) |
058102a6 TW |
592 | return 0; |
593 | ||
594 | /* On statically configured aggregates (e.g. loadbalance | |
595 | * without LACP) ports will always be tx_enabled, even if the | |
596 | * link is down. Thus we require both link_up and tx_enabled | |
597 | * in order to include it in the tx set. | |
598 | */ | |
599 | tx_enabled = linfo->link_up && linfo->tx_enabled; | |
600 | ||
601 | if (tx_enabled == dp->lag_tx_enabled) | |
602 | return 0; | |
603 | ||
604 | dp->lag_tx_enabled = tx_enabled; | |
605 | ||
606 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_CHANGE, &info); | |
607 | } | |
608 | ||
dedd6a00 VO |
609 | static int dsa_port_lag_create(struct dsa_port *dp, |
610 | struct net_device *lag_dev) | |
611 | { | |
612 | struct dsa_switch *ds = dp->ds; | |
613 | struct dsa_lag *lag; | |
614 | ||
615 | lag = dsa_tree_lag_find(ds->dst, lag_dev); | |
616 | if (lag) { | |
617 | refcount_inc(&lag->refcount); | |
618 | dp->lag = lag; | |
619 | return 0; | |
620 | } | |
621 | ||
622 | lag = kzalloc(sizeof(*lag), GFP_KERNEL); | |
623 | if (!lag) | |
624 | return -ENOMEM; | |
625 | ||
626 | refcount_set(&lag->refcount, 1); | |
e212fa7c VO |
627 | mutex_init(&lag->fdb_lock); |
628 | INIT_LIST_HEAD(&lag->fdbs); | |
dedd6a00 VO |
629 | lag->dev = lag_dev; |
630 | dsa_lag_map(ds->dst, lag); | |
631 | dp->lag = lag; | |
632 | ||
633 | return 0; | |
634 | } | |
635 | ||
636 | static void dsa_port_lag_destroy(struct dsa_port *dp) | |
637 | { | |
638 | struct dsa_lag *lag = dp->lag; | |
639 | ||
640 | dp->lag = NULL; | |
641 | dp->lag_tx_enabled = false; | |
642 | ||
643 | if (!refcount_dec_and_test(&lag->refcount)) | |
644 | return; | |
645 | ||
e212fa7c | 646 | WARN_ON(!list_empty(&lag->fdbs)); |
dedd6a00 VO |
647 | dsa_lag_unmap(dp->ds->dst, lag); |
648 | kfree(lag); | |
649 | } | |
650 | ||
46a76724 | 651 | int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev, |
2afc526a VO |
652 | struct netdev_lag_upper_info *uinfo, |
653 | struct netlink_ext_ack *extack) | |
058102a6 TW |
654 | { |
655 | struct dsa_notifier_lag_info info = { | |
726816a1 | 656 | .dp = dp, |
058102a6 | 657 | .info = uinfo, |
2e359b00 | 658 | .extack = extack, |
058102a6 | 659 | }; |
185c9a76 | 660 | struct net_device *bridge_dev; |
058102a6 TW |
661 | int err; |
662 | ||
dedd6a00 VO |
663 | err = dsa_port_lag_create(dp, lag_dev); |
664 | if (err) | |
665 | goto err_lag_create; | |
058102a6 | 666 | |
dedd6a00 | 667 | info.lag = *dp->lag; |
058102a6 | 668 | err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_JOIN, &info); |
185c9a76 VO |
669 | if (err) |
670 | goto err_lag_join; | |
058102a6 | 671 | |
46a76724 | 672 | bridge_dev = netdev_master_upper_dev_get(lag_dev); |
185c9a76 VO |
673 | if (!bridge_dev || !netif_is_bridge_master(bridge_dev)) |
674 | return 0; | |
675 | ||
2afc526a | 676 | err = dsa_port_bridge_join(dp, bridge_dev, extack); |
185c9a76 VO |
677 | if (err) |
678 | goto err_bridge_join; | |
679 | ||
680 | return 0; | |
681 | ||
682 | err_bridge_join: | |
683 | dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info); | |
684 | err_lag_join: | |
dedd6a00 VO |
685 | dsa_port_lag_destroy(dp); |
686 | err_lag_create: | |
058102a6 TW |
687 | return err; |
688 | } | |
689 | ||
46a76724 | 690 | void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag_dev) |
74918945 | 691 | { |
36cbf39b VO |
692 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
693 | ||
694 | if (br) | |
695 | dsa_port_pre_bridge_leave(dp, br); | |
74918945 VO |
696 | } |
697 | ||
46a76724 | 698 | void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev) |
058102a6 | 699 | { |
36cbf39b | 700 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
058102a6 | 701 | struct dsa_notifier_lag_info info = { |
726816a1 | 702 | .dp = dp, |
058102a6 TW |
703 | }; |
704 | int err; | |
705 | ||
dedd6a00 | 706 | if (!dp->lag) |
058102a6 TW |
707 | return; |
708 | ||
709 | /* Port might have been part of a LAG that in turn was | |
710 | * attached to a bridge. | |
711 | */ | |
36cbf39b VO |
712 | if (br) |
713 | dsa_port_bridge_leave(dp, br); | |
058102a6 | 714 | |
dedd6a00 VO |
715 | info.lag = *dp->lag; |
716 | ||
717 | dsa_port_lag_destroy(dp); | |
058102a6 TW |
718 | |
719 | err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info); | |
720 | if (err) | |
ab97462b VO |
721 | dev_err(dp->ds->dev, |
722 | "port %d failed to notify DSA_NOTIFIER_LAG_LEAVE: %pe\n", | |
723 | dp->index, ERR_PTR(err)); | |
058102a6 TW |
724 | } |
725 | ||
adb256eb | 726 | /* Must be called under rcu_read_lock() */ |
8f5d16f6 | 727 | static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, |
89153ed6 VO |
728 | bool vlan_filtering, |
729 | struct netlink_ext_ack *extack) | |
8f5d16f6 VO |
730 | { |
731 | struct dsa_switch *ds = dp->ds; | |
d0004a02 VO |
732 | struct dsa_port *other_dp; |
733 | int err; | |
adb256eb VO |
734 | |
735 | /* VLAN awareness was off, so the question is "can we turn it on". | |
736 | * We may have had 8021q uppers, those need to go. Make sure we don't | |
737 | * enter an inconsistent state: deny changing the VLAN awareness state | |
738 | * as long as we have 8021q uppers. | |
739 | */ | |
57d77986 | 740 | if (vlan_filtering && dsa_port_is_user(dp)) { |
36cbf39b | 741 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
adb256eb | 742 | struct net_device *upper_dev, *slave = dp->slave; |
adb256eb VO |
743 | struct list_head *iter; |
744 | ||
745 | netdev_for_each_upper_dev_rcu(slave, upper_dev, iter) { | |
746 | struct bridge_vlan_info br_info; | |
747 | u16 vid; | |
748 | ||
749 | if (!is_vlan_dev(upper_dev)) | |
750 | continue; | |
751 | ||
752 | vid = vlan_dev_vlan_id(upper_dev); | |
753 | ||
754 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
755 | * device, respectively the VID is not found, returning | |
756 | * 0 means success, which is a failure for us here. | |
757 | */ | |
758 | err = br_vlan_get_info(br, vid, &br_info); | |
759 | if (err == 0) { | |
89153ed6 VO |
760 | NL_SET_ERR_MSG_MOD(extack, |
761 | "Must first remove VLAN uppers having VIDs also present in bridge"); | |
adb256eb VO |
762 | return false; |
763 | } | |
764 | } | |
765 | } | |
8f5d16f6 VO |
766 | |
767 | if (!ds->vlan_filtering_is_global) | |
768 | return true; | |
769 | ||
770 | /* For cases where enabling/disabling VLAN awareness is global to the | |
771 | * switch, we need to handle the case where multiple bridges span | |
772 | * different ports of the same switch device and one of them has a | |
773 | * different setting than what is being requested. | |
774 | */ | |
d0004a02 | 775 | dsa_switch_for_each_port(other_dp, ds) { |
36cbf39b | 776 | struct net_device *other_br = dsa_port_bridge_dev_get(other_dp); |
8f5d16f6 | 777 | |
8f5d16f6 VO |
778 | /* If it's the same bridge, it also has same |
779 | * vlan_filtering setting => no need to check | |
780 | */ | |
36cbf39b | 781 | if (!other_br || other_br == dsa_port_bridge_dev_get(dp)) |
8f5d16f6 | 782 | continue; |
36cbf39b VO |
783 | |
784 | if (br_vlan_enabled(other_br) != vlan_filtering) { | |
89153ed6 VO |
785 | NL_SET_ERR_MSG_MOD(extack, |
786 | "VLAN filtering is a global setting"); | |
8f5d16f6 VO |
787 | return false; |
788 | } | |
789 | } | |
790 | return true; | |
791 | } | |
792 | ||
89153ed6 VO |
793 | int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, |
794 | struct netlink_ext_ack *extack) | |
4d61d304 | 795 | { |
06cfb2df | 796 | bool old_vlan_filtering = dsa_port_is_vlan_filtering(dp); |
4d61d304 | 797 | struct dsa_switch *ds = dp->ds; |
bae33f2b | 798 | bool apply; |
33162e9a | 799 | int err; |
4d61d304 | 800 | |
bae33f2b VO |
801 | if (!ds->ops->port_vlan_filtering) |
802 | return -EOPNOTSUPP; | |
adb256eb | 803 | |
bae33f2b VO |
804 | /* We are called from dsa_slave_switchdev_blocking_event(), |
805 | * which is not under rcu_read_lock(), unlike | |
806 | * dsa_slave_switchdev_event(). | |
807 | */ | |
808 | rcu_read_lock(); | |
89153ed6 | 809 | apply = dsa_port_can_apply_vlan_filtering(dp, vlan_filtering, extack); |
bae33f2b VO |
810 | rcu_read_unlock(); |
811 | if (!apply) | |
812 | return -EINVAL; | |
8f5d16f6 | 813 | |
ec9121e7 VO |
814 | if (dsa_port_is_vlan_filtering(dp) == vlan_filtering) |
815 | return 0; | |
816 | ||
89153ed6 VO |
817 | err = ds->ops->port_vlan_filtering(ds, dp->index, vlan_filtering, |
818 | extack); | |
8f5d16f6 VO |
819 | if (err) |
820 | return err; | |
821 | ||
06cfb2df | 822 | if (ds->vlan_filtering_is_global) { |
d0004a02 | 823 | struct dsa_port *other_dp; |
06cfb2df | 824 | |
bae33f2b | 825 | ds->vlan_filtering = vlan_filtering; |
06cfb2df | 826 | |
d0004a02 | 827 | dsa_switch_for_each_user_port(other_dp, ds) { |
4db2a5ef | 828 | struct net_device *slave = other_dp->slave; |
06cfb2df VO |
829 | |
830 | /* We might be called in the unbind path, so not | |
831 | * all slave devices might still be registered. | |
832 | */ | |
06cfb2df VO |
833 | if (!slave) |
834 | continue; | |
835 | ||
836 | err = dsa_slave_manage_vlan_filtering(slave, | |
837 | vlan_filtering); | |
838 | if (err) | |
839 | goto restore; | |
840 | } | |
841 | } else { | |
bae33f2b | 842 | dp->vlan_filtering = vlan_filtering; |
2e554a7a | 843 | |
06cfb2df VO |
844 | err = dsa_slave_manage_vlan_filtering(dp->slave, |
845 | vlan_filtering); | |
846 | if (err) | |
847 | goto restore; | |
848 | } | |
849 | ||
4d61d304 | 850 | return 0; |
06cfb2df VO |
851 | |
852 | restore: | |
853 | ds->ops->port_vlan_filtering(ds, dp->index, old_vlan_filtering, NULL); | |
854 | ||
855 | if (ds->vlan_filtering_is_global) | |
856 | ds->vlan_filtering = old_vlan_filtering; | |
857 | else | |
858 | dp->vlan_filtering = old_vlan_filtering; | |
859 | ||
860 | return err; | |
4d61d304 | 861 | } |
d87bd94e | 862 | |
54a0ed0d RK |
863 | /* This enforces legacy behavior for switch drivers which assume they can't |
864 | * receive VLAN configuration when enslaved to a bridge with vlan_filtering=0 | |
865 | */ | |
866 | bool dsa_port_skip_vlan_configuration(struct dsa_port *dp) | |
867 | { | |
36cbf39b | 868 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
54a0ed0d RK |
869 | struct dsa_switch *ds = dp->ds; |
870 | ||
36cbf39b | 871 | if (!br) |
54a0ed0d RK |
872 | return false; |
873 | ||
36cbf39b | 874 | return !ds->configure_vlan_while_not_filtering && !br_vlan_enabled(br); |
54a0ed0d RK |
875 | } |
876 | ||
bae33f2b | 877 | int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock) |
d87bd94e VD |
878 | { |
879 | unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock); | |
880 | unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies); | |
bae33f2b | 881 | struct dsa_notifier_ageing_time_info info; |
bae33f2b VO |
882 | int err; |
883 | ||
884 | info.ageing_time = ageing_time; | |
d87bd94e | 885 | |
bae33f2b VO |
886 | err = dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info); |
887 | if (err) | |
888 | return err; | |
d87bd94e | 889 | |
d87bd94e | 890 | dp->ageing_time = ageing_time; |
d87bd94e | 891 | |
77b61365 | 892 | return 0; |
d87bd94e | 893 | } |
d1cffff0 | 894 | |
332afc4c TW |
895 | int dsa_port_mst_enable(struct dsa_port *dp, bool on, |
896 | struct netlink_ext_ack *extack) | |
897 | { | |
7414af30 | 898 | if (on && !dsa_port_supports_mst(dp)) { |
332afc4c TW |
899 | NL_SET_ERR_MSG_MOD(extack, "Hardware does not support MST"); |
900 | return -EINVAL; | |
901 | } | |
902 | ||
903 | return 0; | |
904 | } | |
905 | ||
e18f4c18 | 906 | int dsa_port_pre_bridge_flags(const struct dsa_port *dp, |
a8b659e7 VO |
907 | struct switchdev_brport_flags flags, |
908 | struct netlink_ext_ack *extack) | |
ea87005a FF |
909 | { |
910 | struct dsa_switch *ds = dp->ds; | |
911 | ||
a8b659e7 | 912 | if (!ds->ops->port_pre_bridge_flags) |
ea87005a FF |
913 | return -EINVAL; |
914 | ||
a8b659e7 | 915 | return ds->ops->port_pre_bridge_flags(ds, dp->index, flags, extack); |
ea87005a FF |
916 | } |
917 | ||
045c45d1 | 918 | int dsa_port_bridge_flags(struct dsa_port *dp, |
a8b659e7 VO |
919 | struct switchdev_brport_flags flags, |
920 | struct netlink_ext_ack *extack) | |
57652796 RK |
921 | { |
922 | struct dsa_switch *ds = dp->ds; | |
045c45d1 | 923 | int err; |
57652796 | 924 | |
a8b659e7 | 925 | if (!ds->ops->port_bridge_flags) |
70a7c484 | 926 | return -EOPNOTSUPP; |
57652796 | 927 | |
045c45d1 VO |
928 | err = ds->ops->port_bridge_flags(ds, dp->index, flags, extack); |
929 | if (err) | |
930 | return err; | |
931 | ||
932 | if (flags.mask & BR_LEARNING) { | |
933 | bool learning = flags.val & BR_LEARNING; | |
934 | ||
935 | if (learning == dp->learning) | |
936 | return 0; | |
937 | ||
bee7c577 VO |
938 | if ((dp->learning && !learning) && |
939 | (dp->stp_state == BR_STATE_LEARNING || | |
940 | dp->stp_state == BR_STATE_FORWARDING)) | |
045c45d1 VO |
941 | dsa_port_fast_age(dp); |
942 | ||
943 | dp->learning = learning; | |
944 | } | |
945 | ||
946 | return 0; | |
57652796 RK |
947 | } |
948 | ||
72c3b0c7 VO |
949 | void dsa_port_set_host_flood(struct dsa_port *dp, bool uc, bool mc) |
950 | { | |
951 | struct dsa_switch *ds = dp->ds; | |
952 | ||
953 | if (ds->ops->port_set_host_flood) | |
954 | ds->ops->port_set_host_flood(ds, dp->index, uc, mc); | |
955 | } | |
956 | ||
8e6598a7 TW |
957 | int dsa_port_vlan_msti(struct dsa_port *dp, |
958 | const struct switchdev_vlan_msti *msti) | |
959 | { | |
960 | struct dsa_switch *ds = dp->ds; | |
961 | ||
962 | if (!ds->ops->vlan_msti_set) | |
963 | return -EOPNOTSUPP; | |
964 | ||
965 | return ds->ops->vlan_msti_set(ds, *dp->bridge, msti); | |
966 | } | |
967 | ||
be6ff966 | 968 | int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu) |
bfcb8132 VO |
969 | { |
970 | struct dsa_notifier_mtu_info info = { | |
726816a1 | 971 | .dp = dp, |
bfcb8132 VO |
972 | .mtu = new_mtu, |
973 | }; | |
974 | ||
975 | return dsa_port_notify(dp, DSA_NOTIFIER_MTU, &info); | |
976 | } | |
977 | ||
2acf4e6a AS |
978 | int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr, |
979 | u16 vid) | |
d1cffff0 | 980 | { |
685fb6a4 | 981 | struct dsa_notifier_fdb_info info = { |
726816a1 | 982 | .dp = dp, |
2acf4e6a AS |
983 | .addr = addr, |
984 | .vid = vid, | |
c2693363 VO |
985 | .db = { |
986 | .type = DSA_DB_BRIDGE, | |
987 | .bridge = *dp->bridge, | |
988 | }, | |
685fb6a4 | 989 | }; |
d1cffff0 | 990 | |
c2693363 VO |
991 | /* Refcounting takes bridge.num as a key, and should be global for all |
992 | * bridges in the absence of FDB isolation, and per bridge otherwise. | |
993 | * Force the bridge.num to zero here in the absence of FDB isolation. | |
994 | */ | |
995 | if (!dp->ds->fdb_isolation) | |
996 | info.db.bridge.num = 0; | |
997 | ||
685fb6a4 | 998 | return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info); |
d1cffff0 VD |
999 | } |
1000 | ||
2acf4e6a AS |
1001 | int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr, |
1002 | u16 vid) | |
d1cffff0 | 1003 | { |
685fb6a4 | 1004 | struct dsa_notifier_fdb_info info = { |
726816a1 | 1005 | .dp = dp, |
2acf4e6a AS |
1006 | .addr = addr, |
1007 | .vid = vid, | |
c2693363 VO |
1008 | .db = { |
1009 | .type = DSA_DB_BRIDGE, | |
1010 | .bridge = *dp->bridge, | |
1011 | }, | |
685fb6a4 | 1012 | }; |
d1cffff0 | 1013 | |
c2693363 VO |
1014 | if (!dp->ds->fdb_isolation) |
1015 | info.db.bridge.num = 0; | |
1016 | ||
685fb6a4 | 1017 | return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info); |
d1cffff0 VD |
1018 | } |
1019 | ||
5e8a1e03 VO |
1020 | static int dsa_port_host_fdb_add(struct dsa_port *dp, |
1021 | const unsigned char *addr, u16 vid, | |
1022 | struct dsa_db db) | |
3dc80afc VO |
1023 | { |
1024 | struct dsa_notifier_fdb_info info = { | |
726816a1 | 1025 | .dp = dp, |
3dc80afc VO |
1026 | .addr = addr, |
1027 | .vid = vid, | |
5e8a1e03 VO |
1028 | .db = db, |
1029 | }; | |
1030 | ||
1031 | if (!dp->ds->fdb_isolation) | |
1032 | info.db.bridge.num = 0; | |
1033 | ||
1034 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_ADD, &info); | |
1035 | } | |
1036 | ||
1037 | int dsa_port_standalone_host_fdb_add(struct dsa_port *dp, | |
1038 | const unsigned char *addr, u16 vid) | |
1039 | { | |
1040 | struct dsa_db db = { | |
1041 | .type = DSA_DB_PORT, | |
1042 | .dp = dp, | |
3dc80afc | 1043 | }; |
5e8a1e03 VO |
1044 | |
1045 | return dsa_port_host_fdb_add(dp, addr, vid, db); | |
1046 | } | |
1047 | ||
1048 | int dsa_port_bridge_host_fdb_add(struct dsa_port *dp, | |
1049 | const unsigned char *addr, u16 vid) | |
1050 | { | |
8f6a19c0 | 1051 | struct net_device *master = dsa_port_to_master(dp); |
5e8a1e03 VO |
1052 | struct dsa_db db = { |
1053 | .type = DSA_DB_BRIDGE, | |
1054 | .bridge = *dp->bridge, | |
1055 | }; | |
26ee7b06 VO |
1056 | int err; |
1057 | ||
8940e6b6 VO |
1058 | /* Avoid a call to __dev_set_promiscuity() on the master, which |
1059 | * requires rtnl_lock(), since we can't guarantee that is held here, | |
1060 | * and we can't take it either. | |
1061 | */ | |
8f6a19c0 VO |
1062 | if (master->priv_flags & IFF_UNICAST_FLT) { |
1063 | err = dev_uc_add(master, addr); | |
8940e6b6 VO |
1064 | if (err) |
1065 | return err; | |
1066 | } | |
3dc80afc | 1067 | |
5e8a1e03 | 1068 | return dsa_port_host_fdb_add(dp, addr, vid, db); |
3dc80afc VO |
1069 | } |
1070 | ||
5e8a1e03 VO |
1071 | static int dsa_port_host_fdb_del(struct dsa_port *dp, |
1072 | const unsigned char *addr, u16 vid, | |
1073 | struct dsa_db db) | |
3dc80afc VO |
1074 | { |
1075 | struct dsa_notifier_fdb_info info = { | |
726816a1 | 1076 | .dp = dp, |
3dc80afc VO |
1077 | .addr = addr, |
1078 | .vid = vid, | |
5e8a1e03 VO |
1079 | .db = db, |
1080 | }; | |
1081 | ||
1082 | if (!dp->ds->fdb_isolation) | |
1083 | info.db.bridge.num = 0; | |
1084 | ||
1085 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_DEL, &info); | |
1086 | } | |
1087 | ||
1088 | int dsa_port_standalone_host_fdb_del(struct dsa_port *dp, | |
1089 | const unsigned char *addr, u16 vid) | |
1090 | { | |
1091 | struct dsa_db db = { | |
1092 | .type = DSA_DB_PORT, | |
1093 | .dp = dp, | |
3dc80afc | 1094 | }; |
5e8a1e03 VO |
1095 | |
1096 | return dsa_port_host_fdb_del(dp, addr, vid, db); | |
1097 | } | |
1098 | ||
1099 | int dsa_port_bridge_host_fdb_del(struct dsa_port *dp, | |
1100 | const unsigned char *addr, u16 vid) | |
1101 | { | |
8f6a19c0 | 1102 | struct net_device *master = dsa_port_to_master(dp); |
5e8a1e03 VO |
1103 | struct dsa_db db = { |
1104 | .type = DSA_DB_BRIDGE, | |
1105 | .bridge = *dp->bridge, | |
1106 | }; | |
26ee7b06 VO |
1107 | int err; |
1108 | ||
8f6a19c0 VO |
1109 | if (master->priv_flags & IFF_UNICAST_FLT) { |
1110 | err = dev_uc_del(master, addr); | |
8940e6b6 VO |
1111 | if (err) |
1112 | return err; | |
1113 | } | |
3dc80afc | 1114 | |
5e8a1e03 | 1115 | return dsa_port_host_fdb_del(dp, addr, vid, db); |
3dc80afc VO |
1116 | } |
1117 | ||
e212fa7c VO |
1118 | int dsa_port_lag_fdb_add(struct dsa_port *dp, const unsigned char *addr, |
1119 | u16 vid) | |
1120 | { | |
1121 | struct dsa_notifier_lag_fdb_info info = { | |
1122 | .lag = dp->lag, | |
1123 | .addr = addr, | |
1124 | .vid = vid, | |
c2693363 VO |
1125 | .db = { |
1126 | .type = DSA_DB_BRIDGE, | |
1127 | .bridge = *dp->bridge, | |
1128 | }, | |
e212fa7c VO |
1129 | }; |
1130 | ||
c2693363 VO |
1131 | if (!dp->ds->fdb_isolation) |
1132 | info.db.bridge.num = 0; | |
1133 | ||
e212fa7c VO |
1134 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_FDB_ADD, &info); |
1135 | } | |
1136 | ||
1137 | int dsa_port_lag_fdb_del(struct dsa_port *dp, const unsigned char *addr, | |
1138 | u16 vid) | |
1139 | { | |
1140 | struct dsa_notifier_lag_fdb_info info = { | |
1141 | .lag = dp->lag, | |
1142 | .addr = addr, | |
1143 | .vid = vid, | |
c2693363 VO |
1144 | .db = { |
1145 | .type = DSA_DB_BRIDGE, | |
1146 | .bridge = *dp->bridge, | |
1147 | }, | |
e212fa7c VO |
1148 | }; |
1149 | ||
c2693363 VO |
1150 | if (!dp->ds->fdb_isolation) |
1151 | info.db.bridge.num = 0; | |
1152 | ||
e212fa7c VO |
1153 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_FDB_DEL, &info); |
1154 | } | |
1155 | ||
de40fc5d VD |
1156 | int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data) |
1157 | { | |
1158 | struct dsa_switch *ds = dp->ds; | |
1159 | int port = dp->index; | |
1160 | ||
1161 | if (!ds->ops->port_fdb_dump) | |
1162 | return -EOPNOTSUPP; | |
1163 | ||
1164 | return ds->ops->port_fdb_dump(ds, port, cb, data); | |
1165 | } | |
1166 | ||
bb9f6031 | 1167 | int dsa_port_mdb_add(const struct dsa_port *dp, |
ffb68fc5 | 1168 | const struct switchdev_obj_port_mdb *mdb) |
3a9afea3 | 1169 | { |
8ae5bcdc | 1170 | struct dsa_notifier_mdb_info info = { |
726816a1 | 1171 | .dp = dp, |
8ae5bcdc | 1172 | .mdb = mdb, |
c2693363 VO |
1173 | .db = { |
1174 | .type = DSA_DB_BRIDGE, | |
1175 | .bridge = *dp->bridge, | |
1176 | }, | |
8ae5bcdc | 1177 | }; |
3a9afea3 | 1178 | |
c2693363 VO |
1179 | if (!dp->ds->fdb_isolation) |
1180 | info.db.bridge.num = 0; | |
1181 | ||
8ae5bcdc | 1182 | return dsa_port_notify(dp, DSA_NOTIFIER_MDB_ADD, &info); |
3a9afea3 VD |
1183 | } |
1184 | ||
bb9f6031 | 1185 | int dsa_port_mdb_del(const struct dsa_port *dp, |
3a9afea3 VD |
1186 | const struct switchdev_obj_port_mdb *mdb) |
1187 | { | |
8ae5bcdc | 1188 | struct dsa_notifier_mdb_info info = { |
726816a1 | 1189 | .dp = dp, |
8ae5bcdc | 1190 | .mdb = mdb, |
c2693363 VO |
1191 | .db = { |
1192 | .type = DSA_DB_BRIDGE, | |
1193 | .bridge = *dp->bridge, | |
1194 | }, | |
8ae5bcdc | 1195 | }; |
3a9afea3 | 1196 | |
c2693363 VO |
1197 | if (!dp->ds->fdb_isolation) |
1198 | info.db.bridge.num = 0; | |
1199 | ||
8ae5bcdc | 1200 | return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info); |
3a9afea3 VD |
1201 | } |
1202 | ||
5e8a1e03 VO |
1203 | static int dsa_port_host_mdb_add(const struct dsa_port *dp, |
1204 | const struct switchdev_obj_port_mdb *mdb, | |
1205 | struct dsa_db db) | |
b8e997c4 VO |
1206 | { |
1207 | struct dsa_notifier_mdb_info info = { | |
726816a1 | 1208 | .dp = dp, |
b8e997c4 | 1209 | .mdb = mdb, |
5e8a1e03 VO |
1210 | .db = db, |
1211 | }; | |
1212 | ||
1213 | if (!dp->ds->fdb_isolation) | |
1214 | info.db.bridge.num = 0; | |
1215 | ||
1216 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_ADD, &info); | |
1217 | } | |
1218 | ||
1219 | int dsa_port_standalone_host_mdb_add(const struct dsa_port *dp, | |
1220 | const struct switchdev_obj_port_mdb *mdb) | |
1221 | { | |
1222 | struct dsa_db db = { | |
1223 | .type = DSA_DB_PORT, | |
1224 | .dp = dp, | |
b8e997c4 | 1225 | }; |
5e8a1e03 VO |
1226 | |
1227 | return dsa_port_host_mdb_add(dp, mdb, db); | |
1228 | } | |
1229 | ||
1230 | int dsa_port_bridge_host_mdb_add(const struct dsa_port *dp, | |
1231 | const struct switchdev_obj_port_mdb *mdb) | |
1232 | { | |
8f6a19c0 | 1233 | struct net_device *master = dsa_port_to_master(dp); |
5e8a1e03 VO |
1234 | struct dsa_db db = { |
1235 | .type = DSA_DB_BRIDGE, | |
1236 | .bridge = *dp->bridge, | |
1237 | }; | |
26ee7b06 VO |
1238 | int err; |
1239 | ||
8f6a19c0 | 1240 | err = dev_mc_add(master, mdb->addr); |
26ee7b06 VO |
1241 | if (err) |
1242 | return err; | |
b8e997c4 | 1243 | |
5e8a1e03 | 1244 | return dsa_port_host_mdb_add(dp, mdb, db); |
b8e997c4 VO |
1245 | } |
1246 | ||
5e8a1e03 VO |
1247 | static int dsa_port_host_mdb_del(const struct dsa_port *dp, |
1248 | const struct switchdev_obj_port_mdb *mdb, | |
1249 | struct dsa_db db) | |
b8e997c4 VO |
1250 | { |
1251 | struct dsa_notifier_mdb_info info = { | |
726816a1 | 1252 | .dp = dp, |
b8e997c4 | 1253 | .mdb = mdb, |
5e8a1e03 VO |
1254 | .db = db, |
1255 | }; | |
1256 | ||
1257 | if (!dp->ds->fdb_isolation) | |
1258 | info.db.bridge.num = 0; | |
1259 | ||
1260 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_DEL, &info); | |
1261 | } | |
1262 | ||
1263 | int dsa_port_standalone_host_mdb_del(const struct dsa_port *dp, | |
1264 | const struct switchdev_obj_port_mdb *mdb) | |
1265 | { | |
1266 | struct dsa_db db = { | |
1267 | .type = DSA_DB_PORT, | |
1268 | .dp = dp, | |
b8e997c4 | 1269 | }; |
5e8a1e03 VO |
1270 | |
1271 | return dsa_port_host_mdb_del(dp, mdb, db); | |
1272 | } | |
1273 | ||
1274 | int dsa_port_bridge_host_mdb_del(const struct dsa_port *dp, | |
1275 | const struct switchdev_obj_port_mdb *mdb) | |
1276 | { | |
8f6a19c0 | 1277 | struct net_device *master = dsa_port_to_master(dp); |
5e8a1e03 VO |
1278 | struct dsa_db db = { |
1279 | .type = DSA_DB_BRIDGE, | |
1280 | .bridge = *dp->bridge, | |
1281 | }; | |
26ee7b06 VO |
1282 | int err; |
1283 | ||
8f6a19c0 | 1284 | err = dev_mc_del(master, mdb->addr); |
26ee7b06 VO |
1285 | if (err) |
1286 | return err; | |
b8e997c4 | 1287 | |
5e8a1e03 | 1288 | return dsa_port_host_mdb_del(dp, mdb, db); |
b8e997c4 VO |
1289 | } |
1290 | ||
076e7133 | 1291 | int dsa_port_vlan_add(struct dsa_port *dp, |
31046a5f VO |
1292 | const struct switchdev_obj_port_vlan *vlan, |
1293 | struct netlink_ext_ack *extack) | |
076e7133 | 1294 | { |
d0c627b8 | 1295 | struct dsa_notifier_vlan_info info = { |
726816a1 | 1296 | .dp = dp, |
d0c627b8 | 1297 | .vlan = vlan, |
31046a5f | 1298 | .extack = extack, |
d0c627b8 | 1299 | }; |
076e7133 | 1300 | |
c5335d73 | 1301 | return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info); |
076e7133 VD |
1302 | } |
1303 | ||
1304 | int dsa_port_vlan_del(struct dsa_port *dp, | |
1305 | const struct switchdev_obj_port_vlan *vlan) | |
1306 | { | |
d0c627b8 | 1307 | struct dsa_notifier_vlan_info info = { |
726816a1 | 1308 | .dp = dp, |
d0c627b8 VD |
1309 | .vlan = vlan, |
1310 | }; | |
076e7133 | 1311 | |
c5335d73 | 1312 | return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info); |
076e7133 | 1313 | } |
57ab1ca2 | 1314 | |
134ef238 VO |
1315 | int dsa_port_host_vlan_add(struct dsa_port *dp, |
1316 | const struct switchdev_obj_port_vlan *vlan, | |
1317 | struct netlink_ext_ack *extack) | |
1318 | { | |
8f6a19c0 | 1319 | struct net_device *master = dsa_port_to_master(dp); |
134ef238 | 1320 | struct dsa_notifier_vlan_info info = { |
726816a1 | 1321 | .dp = dp, |
134ef238 VO |
1322 | .vlan = vlan, |
1323 | .extack = extack, | |
1324 | }; | |
134ef238 VO |
1325 | int err; |
1326 | ||
1327 | err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_ADD, &info); | |
1328 | if (err && err != -EOPNOTSUPP) | |
1329 | return err; | |
1330 | ||
8f6a19c0 | 1331 | vlan_vid_add(master, htons(ETH_P_8021Q), vlan->vid); |
134ef238 VO |
1332 | |
1333 | return err; | |
1334 | } | |
1335 | ||
1336 | int dsa_port_host_vlan_del(struct dsa_port *dp, | |
1337 | const struct switchdev_obj_port_vlan *vlan) | |
1338 | { | |
8f6a19c0 | 1339 | struct net_device *master = dsa_port_to_master(dp); |
134ef238 | 1340 | struct dsa_notifier_vlan_info info = { |
726816a1 | 1341 | .dp = dp, |
134ef238 VO |
1342 | .vlan = vlan, |
1343 | }; | |
134ef238 VO |
1344 | int err; |
1345 | ||
1346 | err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_DEL, &info); | |
1347 | if (err && err != -EOPNOTSUPP) | |
1348 | return err; | |
1349 | ||
8f6a19c0 | 1350 | vlan_vid_del(master, htons(ETH_P_8021Q), vlan->vid); |
134ef238 VO |
1351 | |
1352 | return err; | |
1353 | } | |
1354 | ||
c595c433 HV |
1355 | int dsa_port_mrp_add(const struct dsa_port *dp, |
1356 | const struct switchdev_obj_mrp *mrp) | |
1357 | { | |
cad69019 VO |
1358 | struct dsa_switch *ds = dp->ds; |
1359 | ||
1360 | if (!ds->ops->port_mrp_add) | |
1361 | return -EOPNOTSUPP; | |
c595c433 | 1362 | |
cad69019 | 1363 | return ds->ops->port_mrp_add(ds, dp->index, mrp); |
c595c433 HV |
1364 | } |
1365 | ||
1366 | int dsa_port_mrp_del(const struct dsa_port *dp, | |
1367 | const struct switchdev_obj_mrp *mrp) | |
1368 | { | |
cad69019 VO |
1369 | struct dsa_switch *ds = dp->ds; |
1370 | ||
1371 | if (!ds->ops->port_mrp_del) | |
1372 | return -EOPNOTSUPP; | |
c595c433 | 1373 | |
cad69019 | 1374 | return ds->ops->port_mrp_del(ds, dp->index, mrp); |
c595c433 HV |
1375 | } |
1376 | ||
1377 | int dsa_port_mrp_add_ring_role(const struct dsa_port *dp, | |
1378 | const struct switchdev_obj_ring_role_mrp *mrp) | |
1379 | { | |
cad69019 VO |
1380 | struct dsa_switch *ds = dp->ds; |
1381 | ||
1382 | if (!ds->ops->port_mrp_add_ring_role) | |
1383 | return -EOPNOTSUPP; | |
c595c433 | 1384 | |
cad69019 | 1385 | return ds->ops->port_mrp_add_ring_role(ds, dp->index, mrp); |
c595c433 HV |
1386 | } |
1387 | ||
1388 | int dsa_port_mrp_del_ring_role(const struct dsa_port *dp, | |
1389 | const struct switchdev_obj_ring_role_mrp *mrp) | |
1390 | { | |
cad69019 VO |
1391 | struct dsa_switch *ds = dp->ds; |
1392 | ||
1393 | if (!ds->ops->port_mrp_del_ring_role) | |
1394 | return -EOPNOTSUPP; | |
c595c433 | 1395 | |
cad69019 | 1396 | return ds->ops->port_mrp_del_ring_role(ds, dp->index, mrp); |
c595c433 HV |
1397 | } |
1398 | ||
95f510d0 VO |
1399 | static int dsa_port_assign_master(struct dsa_port *dp, |
1400 | struct net_device *master, | |
1401 | struct netlink_ext_ack *extack, | |
1402 | bool fail_on_err) | |
1403 | { | |
1404 | struct dsa_switch *ds = dp->ds; | |
1405 | int port = dp->index, err; | |
1406 | ||
1407 | err = ds->ops->port_change_master(ds, port, master, extack); | |
1408 | if (err && !fail_on_err) | |
1409 | dev_err(ds->dev, "port %d failed to assign master %s: %pe\n", | |
1410 | port, master->name, ERR_PTR(err)); | |
1411 | ||
1412 | if (err && fail_on_err) | |
1413 | return err; | |
1414 | ||
1415 | dp->cpu_dp = master->dsa_ptr; | |
acc43b7b | 1416 | dp->cpu_port_in_lag = netif_is_lag_master(master); |
95f510d0 VO |
1417 | |
1418 | return 0; | |
1419 | } | |
1420 | ||
1421 | /* Change the dp->cpu_dp affinity for a user port. Note that both cross-chip | |
1422 | * notifiers and drivers have implicit assumptions about user-to-CPU-port | |
1423 | * mappings, so we unfortunately cannot delay the deletion of the objects | |
1424 | * (switchdev, standalone addresses, standalone VLANs) on the old CPU port | |
1425 | * until the new CPU port has been set up. So we need to completely tear down | |
1426 | * the old CPU port before changing it, and restore it on errors during the | |
1427 | * bringup of the new one. | |
1428 | */ | |
1429 | int dsa_port_change_master(struct dsa_port *dp, struct net_device *master, | |
1430 | struct netlink_ext_ack *extack) | |
1431 | { | |
1432 | struct net_device *bridge_dev = dsa_port_bridge_dev_get(dp); | |
1433 | struct net_device *old_master = dsa_port_to_master(dp); | |
1434 | struct net_device *dev = dp->slave; | |
1435 | struct dsa_switch *ds = dp->ds; | |
1436 | bool vlan_filtering; | |
1437 | int err, tmp; | |
1438 | ||
1439 | /* Bridges may hold host FDB, MDB and VLAN objects. These need to be | |
1440 | * migrated, so dynamically unoffload and later reoffload the bridge | |
1441 | * port. | |
1442 | */ | |
1443 | if (bridge_dev) { | |
1444 | dsa_port_pre_bridge_leave(dp, bridge_dev); | |
1445 | dsa_port_bridge_leave(dp, bridge_dev); | |
1446 | } | |
1447 | ||
1448 | /* The port might still be VLAN filtering even if it's no longer | |
1449 | * under a bridge, either due to ds->vlan_filtering_is_global or | |
1450 | * ds->needs_standalone_vlan_filtering. In turn this means VLANs | |
1451 | * on the CPU port. | |
1452 | */ | |
1453 | vlan_filtering = dsa_port_is_vlan_filtering(dp); | |
1454 | if (vlan_filtering) { | |
1455 | err = dsa_slave_manage_vlan_filtering(dev, false); | |
1456 | if (err) { | |
1457 | NL_SET_ERR_MSG_MOD(extack, | |
1458 | "Failed to remove standalone VLANs"); | |
1459 | goto rewind_old_bridge; | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | /* Standalone addresses, and addresses of upper interfaces like | |
1464 | * VLAN, LAG, HSR need to be migrated. | |
1465 | */ | |
1466 | dsa_slave_unsync_ha(dev); | |
1467 | ||
1468 | err = dsa_port_assign_master(dp, master, extack, true); | |
1469 | if (err) | |
1470 | goto rewind_old_addrs; | |
1471 | ||
1472 | dsa_slave_sync_ha(dev); | |
1473 | ||
1474 | if (vlan_filtering) { | |
1475 | err = dsa_slave_manage_vlan_filtering(dev, true); | |
1476 | if (err) { | |
1477 | NL_SET_ERR_MSG_MOD(extack, | |
1478 | "Failed to restore standalone VLANs"); | |
1479 | goto rewind_new_addrs; | |
1480 | } | |
1481 | } | |
1482 | ||
1483 | if (bridge_dev) { | |
1484 | err = dsa_port_bridge_join(dp, bridge_dev, extack); | |
1485 | if (err && err == -EOPNOTSUPP) { | |
1486 | NL_SET_ERR_MSG_MOD(extack, | |
1487 | "Failed to reoffload bridge"); | |
1488 | goto rewind_new_vlan; | |
1489 | } | |
1490 | } | |
1491 | ||
1492 | return 0; | |
1493 | ||
1494 | rewind_new_vlan: | |
1495 | if (vlan_filtering) | |
1496 | dsa_slave_manage_vlan_filtering(dev, false); | |
1497 | ||
1498 | rewind_new_addrs: | |
1499 | dsa_slave_unsync_ha(dev); | |
1500 | ||
1501 | dsa_port_assign_master(dp, old_master, NULL, false); | |
1502 | ||
1503 | /* Restore the objects on the old CPU port */ | |
1504 | rewind_old_addrs: | |
1505 | dsa_slave_sync_ha(dev); | |
1506 | ||
1507 | if (vlan_filtering) { | |
1508 | tmp = dsa_slave_manage_vlan_filtering(dev, true); | |
1509 | if (tmp) { | |
1510 | dev_err(ds->dev, | |
1511 | "port %d failed to restore standalone VLANs: %pe\n", | |
1512 | dp->index, ERR_PTR(tmp)); | |
1513 | } | |
1514 | } | |
1515 | ||
1516 | rewind_old_bridge: | |
1517 | if (bridge_dev) { | |
1518 | tmp = dsa_port_bridge_join(dp, bridge_dev, extack); | |
1519 | if (tmp) { | |
1520 | dev_err(ds->dev, | |
1521 | "port %d failed to rejoin bridge %s: %pe\n", | |
1522 | dp->index, bridge_dev->name, ERR_PTR(tmp)); | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | return err; | |
1527 | } | |
1528 | ||
53da0eba VO |
1529 | void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp, |
1530 | const struct dsa_device_ops *tag_ops) | |
1531 | { | |
53da0eba VO |
1532 | cpu_dp->rcv = tag_ops->rcv; |
1533 | cpu_dp->tag_ops = tag_ops; | |
1534 | } | |
1535 | ||
6207a78c | 1536 | static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp) |
33615367 | 1537 | { |
33615367 | 1538 | struct device_node *phy_dn; |
33615367 | 1539 | struct phy_device *phydev; |
33615367 | 1540 | |
6207a78c | 1541 | phy_dn = of_parse_phandle(dp->dn, "phy-handle", 0); |
33615367 | 1542 | if (!phy_dn) |
6207a78c | 1543 | return NULL; |
33615367 SR |
1544 | |
1545 | phydev = of_phy_find_device(phy_dn); | |
1546 | if (!phydev) { | |
6207a78c FF |
1547 | of_node_put(phy_dn); |
1548 | return ERR_PTR(-EPROBE_DEFER); | |
33615367 SR |
1549 | } |
1550 | ||
9919a363 | 1551 | of_node_put(phy_dn); |
6207a78c FF |
1552 | return phydev; |
1553 | } | |
1554 | ||
8ae67496 FF |
1555 | static void dsa_port_phylink_validate(struct phylink_config *config, |
1556 | unsigned long *supported, | |
1557 | struct phylink_link_state *state) | |
77373d49 | 1558 | { |
53d04b98 VO |
1559 | /* Skip call for drivers which don't yet set mac_capabilities, |
1560 | * since validating in that case would mean their PHY will advertise | |
1561 | * nothing. In turn, skipping validation makes them advertise | |
1562 | * everything that the PHY supports, so those drivers should be | |
1563 | * converted ASAP. | |
1564 | */ | |
1565 | if (config->mac_capabilities) | |
1566 | phylink_generic_validate(config, supported, state); | |
77373d49 | 1567 | } |
77373d49 | 1568 | |
8ae67496 FF |
1569 | static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config, |
1570 | struct phylink_link_state *state) | |
77373d49 IC |
1571 | { |
1572 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1573 | struct dsa_switch *ds = dp->ds; | |
87615c96 | 1574 | int err; |
77373d49 | 1575 | |
d46b7e4f RK |
1576 | /* Only called for inband modes */ |
1577 | if (!ds->ops->phylink_mac_link_state) { | |
1578 | state->link = 0; | |
1579 | return; | |
1580 | } | |
77373d49 | 1581 | |
87615c96 RK |
1582 | err = ds->ops->phylink_mac_link_state(ds, dp->index, state); |
1583 | if (err < 0) { | |
1584 | dev_err(ds->dev, "p%d: phylink_mac_link_state() failed: %d\n", | |
1585 | dp->index, err); | |
d46b7e4f | 1586 | state->link = 0; |
87615c96 | 1587 | } |
77373d49 | 1588 | } |
77373d49 | 1589 | |
bde01822 RKO |
1590 | static struct phylink_pcs * |
1591 | dsa_port_phylink_mac_select_pcs(struct phylink_config *config, | |
1592 | phy_interface_t interface) | |
1593 | { | |
1594 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
10544570 | 1595 | struct phylink_pcs *pcs = ERR_PTR(-EOPNOTSUPP); |
bde01822 | 1596 | struct dsa_switch *ds = dp->ds; |
bde01822 RKO |
1597 | |
1598 | if (ds->ops->phylink_mac_select_pcs) | |
1599 | pcs = ds->ops->phylink_mac_select_pcs(ds, dp->index, interface); | |
1600 | ||
1601 | return pcs; | |
1602 | } | |
1603 | ||
8ae67496 FF |
1604 | static void dsa_port_phylink_mac_config(struct phylink_config *config, |
1605 | unsigned int mode, | |
1606 | const struct phylink_link_state *state) | |
77373d49 IC |
1607 | { |
1608 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1609 | struct dsa_switch *ds = dp->ds; | |
1610 | ||
1611 | if (!ds->ops->phylink_mac_config) | |
1612 | return; | |
1613 | ||
1614 | ds->ops->phylink_mac_config(ds, dp->index, mode, state); | |
1615 | } | |
77373d49 | 1616 | |
8ae67496 | 1617 | static void dsa_port_phylink_mac_an_restart(struct phylink_config *config) |
77373d49 IC |
1618 | { |
1619 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1620 | struct dsa_switch *ds = dp->ds; | |
1621 | ||
1622 | if (!ds->ops->phylink_mac_an_restart) | |
1623 | return; | |
1624 | ||
1625 | ds->ops->phylink_mac_an_restart(ds, dp->index); | |
1626 | } | |
77373d49 | 1627 | |
8ae67496 FF |
1628 | static void dsa_port_phylink_mac_link_down(struct phylink_config *config, |
1629 | unsigned int mode, | |
1630 | phy_interface_t interface) | |
77373d49 IC |
1631 | { |
1632 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
0e279218 | 1633 | struct phy_device *phydev = NULL; |
77373d49 IC |
1634 | struct dsa_switch *ds = dp->ds; |
1635 | ||
57d77986 | 1636 | if (dsa_port_is_user(dp)) |
0e279218 IC |
1637 | phydev = dp->slave->phydev; |
1638 | ||
77373d49 | 1639 | if (!ds->ops->phylink_mac_link_down) { |
0e279218 IC |
1640 | if (ds->ops->adjust_link && phydev) |
1641 | ds->ops->adjust_link(ds, dp->index, phydev); | |
77373d49 IC |
1642 | return; |
1643 | } | |
1644 | ||
1645 | ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface); | |
1646 | } | |
77373d49 | 1647 | |
8ae67496 | 1648 | static void dsa_port_phylink_mac_link_up(struct phylink_config *config, |
91a208f2 | 1649 | struct phy_device *phydev, |
8ae67496 FF |
1650 | unsigned int mode, |
1651 | phy_interface_t interface, | |
91a208f2 RK |
1652 | int speed, int duplex, |
1653 | bool tx_pause, bool rx_pause) | |
77373d49 IC |
1654 | { |
1655 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
77373d49 IC |
1656 | struct dsa_switch *ds = dp->ds; |
1657 | ||
1658 | if (!ds->ops->phylink_mac_link_up) { | |
0e279218 IC |
1659 | if (ds->ops->adjust_link && phydev) |
1660 | ds->ops->adjust_link(ds, dp->index, phydev); | |
77373d49 IC |
1661 | return; |
1662 | } | |
1663 | ||
5b502a7b RK |
1664 | ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev, |
1665 | speed, duplex, tx_pause, rx_pause); | |
77373d49 | 1666 | } |
77373d49 | 1667 | |
21bd64bd | 1668 | static const struct phylink_mac_ops dsa_port_phylink_mac_ops = { |
77373d49 | 1669 | .validate = dsa_port_phylink_validate, |
bde01822 | 1670 | .mac_select_pcs = dsa_port_phylink_mac_select_pcs, |
d46b7e4f | 1671 | .mac_pcs_get_state = dsa_port_phylink_mac_pcs_get_state, |
77373d49 IC |
1672 | .mac_config = dsa_port_phylink_mac_config, |
1673 | .mac_an_restart = dsa_port_phylink_mac_an_restart, | |
1674 | .mac_link_down = dsa_port_phylink_mac_link_down, | |
1675 | .mac_link_up = dsa_port_phylink_mac_link_up, | |
1676 | }; | |
1677 | ||
21bd64bd RKO |
1678 | int dsa_port_phylink_create(struct dsa_port *dp) |
1679 | { | |
1680 | struct dsa_switch *ds = dp->ds; | |
1681 | phy_interface_t mode; | |
cf5ca4dd | 1682 | struct phylink *pl; |
21bd64bd RKO |
1683 | int err; |
1684 | ||
1685 | err = of_get_phy_mode(dp->dn, &mode); | |
1686 | if (err) | |
1687 | mode = PHY_INTERFACE_MODE_NA; | |
1688 | ||
0a9f0794 RKO |
1689 | /* Presence of phylink_mac_link_state or phylink_mac_an_restart is |
1690 | * an indicator of a legacy phylink driver. | |
1691 | */ | |
1692 | if (ds->ops->phylink_mac_link_state || | |
1693 | ds->ops->phylink_mac_an_restart) | |
1694 | dp->pl_config.legacy_pre_march2020 = true; | |
1695 | ||
072eea6c RKO |
1696 | if (ds->ops->phylink_get_caps) |
1697 | ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config); | |
21bd64bd | 1698 | |
cf5ca4dd VO |
1699 | pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn), |
1700 | mode, &dsa_port_phylink_mac_ops); | |
1701 | if (IS_ERR(pl)) { | |
557f0501 | 1702 | pr_err("error creating PHYLINK: %ld\n", PTR_ERR(pl)); |
cf5ca4dd | 1703 | return PTR_ERR(pl); |
21bd64bd RKO |
1704 | } |
1705 | ||
cf5ca4dd VO |
1706 | dp->pl = pl; |
1707 | ||
21bd64bd RKO |
1708 | return 0; |
1709 | } | |
1710 | ||
cf5ca4dd VO |
1711 | void dsa_port_phylink_destroy(struct dsa_port *dp) |
1712 | { | |
1713 | phylink_destroy(dp->pl); | |
1714 | dp->pl = NULL; | |
1715 | } | |
1716 | ||
770375ff | 1717 | static int dsa_shared_port_setup_phy_of(struct dsa_port *dp, bool enable) |
6207a78c FF |
1718 | { |
1719 | struct dsa_switch *ds = dp->ds; | |
1720 | struct phy_device *phydev; | |
1721 | int port = dp->index; | |
1722 | int err = 0; | |
1723 | ||
1724 | phydev = dsa_port_get_phy_device(dp); | |
1725 | if (!phydev) | |
1726 | return 0; | |
1727 | ||
1728 | if (IS_ERR(phydev)) | |
1729 | return PTR_ERR(phydev); | |
1730 | ||
33615367 | 1731 | if (enable) { |
33615367 SR |
1732 | err = genphy_resume(phydev); |
1733 | if (err < 0) | |
1734 | goto err_put_dev; | |
1735 | ||
1736 | err = genphy_read_status(phydev); | |
1737 | if (err < 0) | |
1738 | goto err_put_dev; | |
1739 | } else { | |
1740 | err = genphy_suspend(phydev); | |
1741 | if (err < 0) | |
1742 | goto err_put_dev; | |
1743 | } | |
1744 | ||
1745 | if (ds->ops->adjust_link) | |
1746 | ds->ops->adjust_link(ds, port, phydev); | |
1747 | ||
1748 | dev_dbg(ds->dev, "enabled port's phy: %s", phydev_name(phydev)); | |
1749 | ||
1750 | err_put_dev: | |
1751 | put_device(&phydev->mdio.dev); | |
33615367 SR |
1752 | return err; |
1753 | } | |
1754 | ||
770375ff | 1755 | static int dsa_shared_port_fixed_link_register_of(struct dsa_port *dp) |
57ab1ca2 VD |
1756 | { |
1757 | struct device_node *dn = dp->dn; | |
1758 | struct dsa_switch *ds = dp->ds; | |
1759 | struct phy_device *phydev; | |
1760 | int port = dp->index; | |
0c65b2b9 | 1761 | phy_interface_t mode; |
57ab1ca2 VD |
1762 | int err; |
1763 | ||
33615367 SR |
1764 | err = of_phy_register_fixed_link(dn); |
1765 | if (err) { | |
1766 | dev_err(ds->dev, | |
1767 | "failed to register the fixed PHY of port %d\n", | |
1768 | port); | |
1769 | return err; | |
1770 | } | |
57ab1ca2 | 1771 | |
33615367 | 1772 | phydev = of_phy_find_device(dn); |
57ab1ca2 | 1773 | |
0c65b2b9 AL |
1774 | err = of_get_phy_mode(dn, &mode); |
1775 | if (err) | |
33615367 SR |
1776 | mode = PHY_INTERFACE_MODE_NA; |
1777 | phydev->interface = mode; | |
57ab1ca2 | 1778 | |
33615367 | 1779 | genphy_read_status(phydev); |
57ab1ca2 | 1780 | |
33615367 SR |
1781 | if (ds->ops->adjust_link) |
1782 | ds->ops->adjust_link(ds, port, phydev); | |
57ab1ca2 | 1783 | |
33615367 | 1784 | put_device(&phydev->mdio.dev); |
57ab1ca2 VD |
1785 | |
1786 | return 0; | |
1787 | } | |
1788 | ||
770375ff | 1789 | static int dsa_shared_port_phylink_register(struct dsa_port *dp) |
0e279218 IC |
1790 | { |
1791 | struct dsa_switch *ds = dp->ds; | |
1792 | struct device_node *port_dn = dp->dn; | |
0c65b2b9 | 1793 | int err; |
0e279218 | 1794 | |
0e279218 IC |
1795 | dp->pl_config.dev = ds->dev; |
1796 | dp->pl_config.type = PHYLINK_DEV; | |
1797 | ||
21bd64bd RKO |
1798 | err = dsa_port_phylink_create(dp); |
1799 | if (err) | |
1800 | return err; | |
0e279218 IC |
1801 | |
1802 | err = phylink_of_phy_connect(dp->pl, port_dn, 0); | |
2131fba5 | 1803 | if (err && err != -ENODEV) { |
0e279218 IC |
1804 | pr_err("could not attach to PHY: %d\n", err); |
1805 | goto err_phy_connect; | |
1806 | } | |
1807 | ||
0e279218 IC |
1808 | return 0; |
1809 | ||
1810 | err_phy_connect: | |
cf5ca4dd | 1811 | dsa_port_phylink_destroy(dp); |
0e279218 IC |
1812 | return err; |
1813 | } | |
1814 | ||
e09e9873 VO |
1815 | /* During the initial DSA driver migration to OF, port nodes were sometimes |
1816 | * added to device trees with no indication of how they should operate from a | |
1817 | * link management perspective (phy-handle, fixed-link, etc). Additionally, the | |
1818 | * phy-mode may be absent. The interpretation of these port OF nodes depends on | |
1819 | * their type. | |
1820 | * | |
1821 | * User ports with no phy-handle or fixed-link are expected to connect to an | |
1822 | * internal PHY located on the ds->slave_mii_bus at an MDIO address equal to | |
1823 | * the port number. This description is still actively supported. | |
1824 | * | |
1825 | * Shared (CPU and DSA) ports with no phy-handle or fixed-link are expected to | |
1826 | * operate at the maximum speed that their phy-mode is capable of. If the | |
1827 | * phy-mode is absent, they are expected to operate using the phy-mode | |
1828 | * supported by the port that gives the highest link speed. It is unspecified | |
1829 | * if the port should use flow control or not, half duplex or full duplex, or | |
1830 | * if the phy-mode is a SERDES link, whether in-band autoneg is expected to be | |
1831 | * enabled or not. | |
1832 | * | |
1833 | * In the latter case of shared ports, omitting the link management description | |
1834 | * from the firmware node is deprecated and strongly discouraged. DSA uses | |
1835 | * phylink, which rejects the firmware nodes of these ports for lacking | |
1836 | * required properties. | |
1837 | * | |
1838 | * For switches in this table, DSA will skip enforcing validation and will | |
1839 | * later omit registering a phylink instance for the shared ports, if they lack | |
1840 | * a fixed-link, a phy-handle, or a managed = "in-band-status" property. | |
1841 | * It becomes the responsibility of the driver to ensure that these ports | |
1842 | * operate at the maximum speed (whatever this means) and will interoperate | |
1843 | * with the DSA master or other cascade port, since phylink methods will not be | |
1844 | * invoked for them. | |
1845 | * | |
1846 | * If you are considering expanding this table for newly introduced switches, | |
1847 | * think again. It is OK to remove switches from this table if there aren't DT | |
1848 | * blobs in circulation which rely on defaulting the shared ports. | |
1849 | */ | |
1850 | static const char * const dsa_switches_apply_workarounds[] = { | |
1851 | #if IS_ENABLED(CONFIG_NET_DSA_XRS700X) | |
1852 | "arrow,xrs7003e", | |
1853 | "arrow,xrs7003f", | |
1854 | "arrow,xrs7004e", | |
1855 | "arrow,xrs7004f", | |
1856 | #endif | |
1857 | #if IS_ENABLED(CONFIG_B53) | |
1858 | "brcm,bcm5325", | |
1859 | "brcm,bcm53115", | |
1860 | "brcm,bcm53125", | |
1861 | "brcm,bcm53128", | |
1862 | "brcm,bcm5365", | |
1863 | "brcm,bcm5389", | |
1864 | "brcm,bcm5395", | |
1865 | "brcm,bcm5397", | |
1866 | "brcm,bcm5398", | |
1867 | "brcm,bcm53010-srab", | |
1868 | "brcm,bcm53011-srab", | |
1869 | "brcm,bcm53012-srab", | |
1870 | "brcm,bcm53018-srab", | |
1871 | "brcm,bcm53019-srab", | |
1872 | "brcm,bcm5301x-srab", | |
1873 | "brcm,bcm11360-srab", | |
1874 | "brcm,bcm58522-srab", | |
1875 | "brcm,bcm58525-srab", | |
1876 | "brcm,bcm58535-srab", | |
1877 | "brcm,bcm58622-srab", | |
1878 | "brcm,bcm58623-srab", | |
1879 | "brcm,bcm58625-srab", | |
1880 | "brcm,bcm88312-srab", | |
1881 | "brcm,cygnus-srab", | |
1882 | "brcm,nsp-srab", | |
1883 | "brcm,omega-srab", | |
1884 | "brcm,bcm3384-switch", | |
1885 | "brcm,bcm6328-switch", | |
1886 | "brcm,bcm6368-switch", | |
1887 | "brcm,bcm63xx-switch", | |
1888 | #endif | |
1889 | #if IS_ENABLED(CONFIG_NET_DSA_BCM_SF2) | |
1890 | "brcm,bcm7445-switch-v4.0", | |
1891 | "brcm,bcm7278-switch-v4.0", | |
1892 | "brcm,bcm7278-switch-v4.8", | |
1893 | #endif | |
1894 | #if IS_ENABLED(CONFIG_NET_DSA_LANTIQ_GSWIP) | |
1895 | "lantiq,xrx200-gswip", | |
1896 | "lantiq,xrx300-gswip", | |
1897 | "lantiq,xrx330-gswip", | |
1898 | #endif | |
1899 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6060) | |
1900 | "marvell,mv88e6060", | |
1901 | #endif | |
1902 | #if IS_ENABLED(CONFIG_NET_DSA_MV88E6XXX) | |
1903 | "marvell,mv88e6085", | |
1904 | "marvell,mv88e6190", | |
1905 | "marvell,mv88e6250", | |
1906 | #endif | |
1907 | #if IS_ENABLED(CONFIG_NET_DSA_MICROCHIP_KSZ_COMMON) | |
1908 | "microchip,ksz8765", | |
1909 | "microchip,ksz8794", | |
1910 | "microchip,ksz8795", | |
1911 | "microchip,ksz8863", | |
1912 | "microchip,ksz8873", | |
1913 | "microchip,ksz9477", | |
1914 | "microchip,ksz9897", | |
1915 | "microchip,ksz9893", | |
1916 | "microchip,ksz9563", | |
1917 | "microchip,ksz8563", | |
1918 | "microchip,ksz9567", | |
1919 | #endif | |
1920 | #if IS_ENABLED(CONFIG_NET_DSA_SMSC_LAN9303_MDIO) | |
1921 | "smsc,lan9303-mdio", | |
1922 | #endif | |
1923 | #if IS_ENABLED(CONFIG_NET_DSA_SMSC_LAN9303_I2C) | |
1924 | "smsc,lan9303-i2c", | |
1925 | #endif | |
1926 | NULL, | |
1927 | }; | |
1928 | ||
1929 | static void dsa_shared_port_validate_of(struct dsa_port *dp, | |
1930 | bool *missing_phy_mode, | |
1931 | bool *missing_link_description) | |
1932 | { | |
1933 | struct device_node *dn = dp->dn, *phy_np; | |
1934 | struct dsa_switch *ds = dp->ds; | |
1935 | phy_interface_t mode; | |
1936 | ||
1937 | *missing_phy_mode = false; | |
1938 | *missing_link_description = false; | |
1939 | ||
1940 | if (of_get_phy_mode(dn, &mode)) { | |
1941 | *missing_phy_mode = true; | |
1942 | dev_err(ds->dev, | |
1943 | "OF node %pOF of %s port %d lacks the required \"phy-mode\" property\n", | |
1944 | dn, dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index); | |
1945 | } | |
1946 | ||
1947 | /* Note: of_phy_is_fixed_link() also returns true for | |
1948 | * managed = "in-band-status" | |
1949 | */ | |
1950 | if (of_phy_is_fixed_link(dn)) | |
1951 | return; | |
1952 | ||
1953 | phy_np = of_parse_phandle(dn, "phy-handle", 0); | |
1954 | if (phy_np) { | |
1955 | of_node_put(phy_np); | |
1956 | return; | |
1957 | } | |
1958 | ||
1959 | *missing_link_description = true; | |
1960 | ||
1961 | dev_err(ds->dev, | |
1962 | "OF node %pOF of %s port %d lacks the required \"phy-handle\", \"fixed-link\" or \"managed\" properties\n", | |
1963 | dn, dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index); | |
1964 | } | |
1965 | ||
770375ff | 1966 | int dsa_shared_port_link_register_of(struct dsa_port *dp) |
57ab1ca2 | 1967 | { |
0e279218 | 1968 | struct dsa_switch *ds = dp->ds; |
e09e9873 VO |
1969 | bool missing_link_description; |
1970 | bool missing_phy_mode; | |
3be98b2d | 1971 | int port = dp->index; |
0e279218 | 1972 | |
e09e9873 VO |
1973 | dsa_shared_port_validate_of(dp, &missing_phy_mode, |
1974 | &missing_link_description); | |
1975 | ||
1976 | if ((missing_phy_mode || missing_link_description) && | |
1977 | !of_device_compatible_match(ds->dev->of_node, | |
1978 | dsa_switches_apply_workarounds)) | |
1979 | return -EINVAL; | |
1980 | ||
a20f9970 | 1981 | if (!ds->ops->adjust_link) { |
e09e9873 VO |
1982 | if (missing_link_description) { |
1983 | dev_warn(ds->dev, | |
1984 | "Skipping phylink registration for %s port %d\n", | |
1985 | dsa_port_is_cpu(dp) ? "CPU" : "DSA", dp->index); | |
1986 | } else { | |
3be98b2d AL |
1987 | if (ds->ops->phylink_mac_link_down) |
1988 | ds->ops->phylink_mac_link_down(ds, port, | |
1989 | MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); | |
e09e9873 | 1990 | |
770375ff | 1991 | return dsa_shared_port_phylink_register(dp); |
3be98b2d | 1992 | } |
a20f9970 AL |
1993 | return 0; |
1994 | } | |
0e279218 IC |
1995 | |
1996 | dev_warn(ds->dev, | |
1997 | "Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n"); | |
1998 | ||
33615367 | 1999 | if (of_phy_is_fixed_link(dp->dn)) |
770375ff | 2000 | return dsa_shared_port_fixed_link_register_of(dp); |
33615367 | 2001 | else |
770375ff | 2002 | return dsa_shared_port_setup_phy_of(dp, true); |
33615367 | 2003 | } |
57ab1ca2 | 2004 | |
770375ff | 2005 | void dsa_shared_port_link_unregister_of(struct dsa_port *dp) |
33615367 | 2006 | { |
0e279218 IC |
2007 | struct dsa_switch *ds = dp->ds; |
2008 | ||
a20f9970 | 2009 | if (!ds->ops->adjust_link && dp->pl) { |
0e279218 IC |
2010 | rtnl_lock(); |
2011 | phylink_disconnect_phy(dp->pl); | |
2012 | rtnl_unlock(); | |
cf5ca4dd | 2013 | dsa_port_phylink_destroy(dp); |
0e279218 IC |
2014 | return; |
2015 | } | |
2016 | ||
33615367 SR |
2017 | if (of_phy_is_fixed_link(dp->dn)) |
2018 | of_phy_deregister_fixed_link(dp->dn); | |
2019 | else | |
770375ff | 2020 | dsa_shared_port_setup_phy_of(dp, false); |
57ab1ca2 | 2021 | } |
cf963573 | 2022 | |
18596f50 GM |
2023 | int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr) |
2024 | { | |
a68dc7b9 | 2025 | struct dsa_switch *ds = dp->ds; |
18596f50 GM |
2026 | int err; |
2027 | ||
a68dc7b9 VO |
2028 | if (!ds->ops->port_hsr_join) |
2029 | return -EOPNOTSUPP; | |
2030 | ||
18596f50 GM |
2031 | dp->hsr_dev = hsr; |
2032 | ||
a68dc7b9 | 2033 | err = ds->ops->port_hsr_join(ds, dp->index, hsr); |
18596f50 GM |
2034 | if (err) |
2035 | dp->hsr_dev = NULL; | |
2036 | ||
2037 | return err; | |
2038 | } | |
2039 | ||
2040 | void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr) | |
2041 | { | |
a68dc7b9 | 2042 | struct dsa_switch *ds = dp->ds; |
18596f50 GM |
2043 | int err; |
2044 | ||
2045 | dp->hsr_dev = NULL; | |
2046 | ||
a68dc7b9 VO |
2047 | if (ds->ops->port_hsr_leave) { |
2048 | err = ds->ops->port_hsr_leave(ds, dp->index, hsr); | |
2049 | if (err) | |
2050 | dev_err(dp->ds->dev, | |
2051 | "port %d failed to leave HSR %s: %pe\n", | |
2052 | dp->index, hsr->name, ERR_PTR(err)); | |
2053 | } | |
18596f50 | 2054 | } |
c64b9c05 | 2055 | |
724395f4 | 2056 | int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast) |
c64b9c05 VO |
2057 | { |
2058 | struct dsa_notifier_tag_8021q_vlan_info info = { | |
726816a1 | 2059 | .dp = dp, |
c64b9c05 VO |
2060 | .vid = vid, |
2061 | }; | |
2062 | ||
724395f4 VO |
2063 | if (broadcast) |
2064 | return dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info); | |
2065 | ||
2066 | return dsa_port_notify(dp, DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info); | |
c64b9c05 VO |
2067 | } |
2068 | ||
724395f4 | 2069 | void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast) |
c64b9c05 VO |
2070 | { |
2071 | struct dsa_notifier_tag_8021q_vlan_info info = { | |
726816a1 | 2072 | .dp = dp, |
c64b9c05 VO |
2073 | .vid = vid, |
2074 | }; | |
2075 | int err; | |
2076 | ||
724395f4 VO |
2077 | if (broadcast) |
2078 | err = dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info); | |
2079 | else | |
2080 | err = dsa_port_notify(dp, DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info); | |
c64b9c05 | 2081 | if (err) |
ab97462b VO |
2082 | dev_err(dp->ds->dev, |
2083 | "port %d failed to notify tag_8021q VLAN %d deletion: %pe\n", | |
2084 | dp->index, vid, ERR_PTR(err)); | |
c64b9c05 | 2085 | } |