Commit | Line | Data |
---|---|---|
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> | |
cfbed329 | 10 | #include <linux/notifier.h> |
57ab1ca2 VD |
11 | #include <linux/of_mdio.h> |
12 | #include <linux/of_net.h> | |
a40c175b VD |
13 | |
14 | #include "dsa_priv.h" | |
15 | ||
886f8e26 VO |
16 | /** |
17 | * dsa_port_notify - Notify the switching fabric of changes to a port | |
18 | * @dp: port on which change occurred | |
19 | * @e: event, must be of type DSA_NOTIFIER_* | |
20 | * @v: event-specific value. | |
21 | * | |
22 | * Notify all switches in the DSA tree that this port's switch belongs to, | |
23 | * including this switch itself, of an event. Allows the other switches to | |
24 | * reconfigure themselves for cross-chip operations. Can also be used to | |
25 | * reconfigure ports without net_devices (CPU ports, DSA links) whenever | |
26 | * a user port's state changes. | |
27 | */ | |
bb9f6031 | 28 | static int dsa_port_notify(const struct dsa_port *dp, unsigned long e, void *v) |
cfbed329 | 29 | { |
886f8e26 | 30 | return dsa_tree_notify(dp->ds->dst, e, v); |
cfbed329 VD |
31 | } |
32 | ||
7414af30 | 33 | static void dsa_port_notify_bridge_fdb_flush(const struct dsa_port *dp, u16 vid) |
9264e4ad VO |
34 | { |
35 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); | |
36 | struct switchdev_notifier_fdb_info info = { | |
7414af30 | 37 | .vid = vid, |
9264e4ad VO |
38 | }; |
39 | ||
40 | /* When the port becomes standalone it has already left the bridge. | |
41 | * Don't notify the bridge in that case. | |
42 | */ | |
43 | if (!brport_dev) | |
44 | return; | |
45 | ||
46 | call_switchdev_notifiers(SWITCHDEV_FDB_FLUSH_TO_BRIDGE, | |
47 | brport_dev, &info.info, NULL); | |
48 | } | |
49 | ||
045c45d1 VO |
50 | static void dsa_port_fast_age(const struct dsa_port *dp) |
51 | { | |
52 | struct dsa_switch *ds = dp->ds; | |
53 | ||
54 | if (!ds->ops->port_fast_age) | |
55 | return; | |
56 | ||
57 | ds->ops->port_fast_age(ds, dp->index); | |
9264e4ad | 58 | |
7414af30 TW |
59 | /* flush all VLANs */ |
60 | dsa_port_notify_bridge_fdb_flush(dp, 0); | |
61 | } | |
62 | ||
63 | static int dsa_port_vlan_fast_age(const struct dsa_port *dp, u16 vid) | |
64 | { | |
65 | struct dsa_switch *ds = dp->ds; | |
66 | int err; | |
67 | ||
68 | if (!ds->ops->port_vlan_fast_age) | |
69 | return -EOPNOTSUPP; | |
70 | ||
71 | err = ds->ops->port_vlan_fast_age(ds, dp->index, vid); | |
72 | ||
73 | if (!err) | |
74 | dsa_port_notify_bridge_fdb_flush(dp, vid); | |
75 | ||
76 | return err; | |
77 | } | |
78 | ||
79 | static int dsa_port_msti_fast_age(const struct dsa_port *dp, u16 msti) | |
80 | { | |
81 | DECLARE_BITMAP(vids, VLAN_N_VID) = { 0 }; | |
82 | int err, vid; | |
83 | ||
84 | err = br_mst_get_info(dsa_port_bridge_dev_get(dp), msti, vids); | |
85 | if (err) | |
86 | return err; | |
87 | ||
88 | for_each_set_bit(vid, vids, VLAN_N_VID) { | |
89 | err = dsa_port_vlan_fast_age(dp, vid); | |
90 | if (err) | |
91 | return err; | |
92 | } | |
93 | ||
94 | return 0; | |
045c45d1 VO |
95 | } |
96 | ||
a4ffe09f VO |
97 | static bool dsa_port_can_configure_learning(struct dsa_port *dp) |
98 | { | |
99 | struct switchdev_brport_flags flags = { | |
100 | .mask = BR_LEARNING, | |
101 | }; | |
102 | struct dsa_switch *ds = dp->ds; | |
103 | int err; | |
104 | ||
105 | if (!ds->ops->port_bridge_flags || !ds->ops->port_pre_bridge_flags) | |
106 | return false; | |
107 | ||
108 | err = ds->ops->port_pre_bridge_flags(ds, dp->index, flags, NULL); | |
109 | return !err; | |
110 | } | |
111 | ||
39f32101 | 112 | int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age) |
a40c175b VD |
113 | { |
114 | struct dsa_switch *ds = dp->ds; | |
115 | int port = dp->index; | |
116 | ||
bae33f2b VO |
117 | if (!ds->ops->port_stp_state_set) |
118 | return -EOPNOTSUPP; | |
a40c175b | 119 | |
bae33f2b | 120 | ds->ops->port_stp_state_set(ds, port, state); |
a40c175b | 121 | |
a4ffe09f VO |
122 | if (!dsa_port_can_configure_learning(dp) || |
123 | (do_fast_age && dp->learning)) { | |
a40c175b VD |
124 | /* Fast age FDB entries or flush appropriate forwarding database |
125 | * for the given port, if we are moving it from Learning or | |
126 | * Forwarding state, to Disabled or Blocking or Listening state. | |
39f32101 VO |
127 | * Ports that were standalone before the STP state change don't |
128 | * need to fast age the FDB, since address learning is off in | |
129 | * standalone mode. | |
a40c175b VD |
130 | */ |
131 | ||
132 | if ((dp->stp_state == BR_STATE_LEARNING || | |
133 | dp->stp_state == BR_STATE_FORWARDING) && | |
134 | (state == BR_STATE_DISABLED || | |
135 | state == BR_STATE_BLOCKING || | |
136 | state == BR_STATE_LISTENING)) | |
045c45d1 | 137 | dsa_port_fast_age(dp); |
a40c175b VD |
138 | } |
139 | ||
140 | dp->stp_state = state; | |
141 | ||
142 | return 0; | |
143 | } | |
144 | ||
39f32101 VO |
145 | static void dsa_port_set_state_now(struct dsa_port *dp, u8 state, |
146 | bool do_fast_age) | |
a40c175b VD |
147 | { |
148 | int err; | |
149 | ||
39f32101 | 150 | err = dsa_port_set_state(dp, state, do_fast_age); |
a40c175b VD |
151 | if (err) |
152 | pr_err("DSA: failed to set STP state %u (%d)\n", state, err); | |
153 | } | |
cfbed329 | 154 | |
7414af30 TW |
155 | int dsa_port_set_mst_state(struct dsa_port *dp, |
156 | const struct switchdev_mst_state *state, | |
157 | struct netlink_ext_ack *extack) | |
158 | { | |
159 | struct dsa_switch *ds = dp->ds; | |
160 | u8 prev_state; | |
161 | int err; | |
162 | ||
163 | if (!ds->ops->port_mst_state_set) | |
164 | return -EOPNOTSUPP; | |
165 | ||
166 | err = br_mst_get_state(dsa_port_to_bridge_port(dp), state->msti, | |
167 | &prev_state); | |
168 | if (err) | |
169 | return err; | |
170 | ||
171 | err = ds->ops->port_mst_state_set(ds, dp->index, state); | |
172 | if (err) | |
173 | return err; | |
174 | ||
175 | if (!(dp->learning && | |
176 | (prev_state == BR_STATE_LEARNING || | |
177 | prev_state == BR_STATE_FORWARDING) && | |
178 | (state->state == BR_STATE_DISABLED || | |
179 | state->state == BR_STATE_BLOCKING || | |
180 | state->state == BR_STATE_LISTENING))) | |
181 | return 0; | |
182 | ||
183 | err = dsa_port_msti_fast_age(dp, state->msti); | |
184 | if (err) | |
185 | NL_SET_ERR_MSG_MOD(extack, | |
186 | "Unable to flush associated VLANs"); | |
187 | ||
188 | return 0; | |
189 | } | |
190 | ||
8640f8dc | 191 | int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy) |
fb8a6a2b | 192 | { |
fb8a6a2b VD |
193 | struct dsa_switch *ds = dp->ds; |
194 | int port = dp->index; | |
195 | int err; | |
196 | ||
197 | if (ds->ops->port_enable) { | |
198 | err = ds->ops->port_enable(ds, port, phy); | |
199 | if (err) | |
200 | return err; | |
201 | } | |
202 | ||
d3eed0e5 | 203 | if (!dp->bridge) |
39f32101 | 204 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING, false); |
fb8a6a2b | 205 | |
8640f8dc RK |
206 | if (dp->pl) |
207 | phylink_start(dp->pl); | |
208 | ||
fb8a6a2b VD |
209 | return 0; |
210 | } | |
211 | ||
8640f8dc RK |
212 | int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy) |
213 | { | |
214 | int err; | |
215 | ||
216 | rtnl_lock(); | |
217 | err = dsa_port_enable_rt(dp, phy); | |
218 | rtnl_unlock(); | |
219 | ||
220 | return err; | |
221 | } | |
222 | ||
223 | void dsa_port_disable_rt(struct dsa_port *dp) | |
fb8a6a2b VD |
224 | { |
225 | struct dsa_switch *ds = dp->ds; | |
226 | int port = dp->index; | |
227 | ||
8640f8dc RK |
228 | if (dp->pl) |
229 | phylink_stop(dp->pl); | |
230 | ||
d3eed0e5 | 231 | if (!dp->bridge) |
39f32101 | 232 | dsa_port_set_state_now(dp, BR_STATE_DISABLED, false); |
fb8a6a2b VD |
233 | |
234 | if (ds->ops->port_disable) | |
75104db0 | 235 | ds->ops->port_disable(ds, port); |
fb8a6a2b VD |
236 | } |
237 | ||
8640f8dc RK |
238 | void dsa_port_disable(struct dsa_port *dp) |
239 | { | |
240 | rtnl_lock(); | |
241 | dsa_port_disable_rt(dp); | |
242 | rtnl_unlock(); | |
243 | } | |
244 | ||
8e9e678e VO |
245 | static void dsa_port_reset_vlan_filtering(struct dsa_port *dp, |
246 | struct dsa_bridge bridge) | |
247 | { | |
248 | struct netlink_ext_ack extack = {0}; | |
249 | bool change_vlan_filtering = false; | |
250 | struct dsa_switch *ds = dp->ds; | |
1699b4d5 | 251 | struct dsa_port *other_dp; |
8e9e678e VO |
252 | bool vlan_filtering; |
253 | int err; | |
254 | ||
255 | if (ds->needs_standalone_vlan_filtering && | |
256 | !br_vlan_enabled(bridge.dev)) { | |
257 | change_vlan_filtering = true; | |
258 | vlan_filtering = true; | |
259 | } else if (!ds->needs_standalone_vlan_filtering && | |
260 | br_vlan_enabled(bridge.dev)) { | |
261 | change_vlan_filtering = true; | |
262 | vlan_filtering = false; | |
263 | } | |
264 | ||
265 | /* If the bridge was vlan_filtering, the bridge core doesn't trigger an | |
266 | * event for changing vlan_filtering setting upon slave ports leaving | |
267 | * it. That is a good thing, because that lets us handle it and also | |
268 | * handle the case where the switch's vlan_filtering setting is global | |
269 | * (not per port). When that happens, the correct moment to trigger the | |
270 | * vlan_filtering callback is only when the last port leaves the last | |
271 | * VLAN-aware bridge. | |
272 | */ | |
273 | if (change_vlan_filtering && ds->vlan_filtering_is_global) { | |
1699b4d5 VO |
274 | dsa_switch_for_each_port(other_dp, ds) { |
275 | struct net_device *br = dsa_port_bridge_dev_get(other_dp); | |
8e9e678e VO |
276 | |
277 | if (br && br_vlan_enabled(br)) { | |
278 | change_vlan_filtering = false; | |
279 | break; | |
280 | } | |
281 | } | |
282 | } | |
283 | ||
284 | if (!change_vlan_filtering) | |
285 | return; | |
286 | ||
287 | err = dsa_port_vlan_filtering(dp, vlan_filtering, &extack); | |
288 | if (extack._msg) { | |
289 | dev_err(ds->dev, "port %d: %s\n", dp->index, | |
290 | extack._msg); | |
291 | } | |
292 | if (err && err != -EOPNOTSUPP) { | |
293 | dev_err(ds->dev, | |
294 | "port %d failed to reset VLAN filtering to %d: %pe\n", | |
295 | dp->index, vlan_filtering, ERR_PTR(err)); | |
296 | } | |
297 | } | |
298 | ||
5961d6a1 VO |
299 | static int dsa_port_inherit_brport_flags(struct dsa_port *dp, |
300 | struct netlink_ext_ack *extack) | |
5e38c158 | 301 | { |
5961d6a1 | 302 | const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | |
b9e8b58f | 303 | BR_BCAST_FLOOD | BR_PORT_LOCKED; |
5961d6a1 VO |
304 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
305 | int flag, err; | |
5e38c158 | 306 | |
5961d6a1 VO |
307 | for_each_set_bit(flag, &mask, 32) { |
308 | struct switchdev_brport_flags flags = {0}; | |
5e38c158 | 309 | |
5961d6a1 | 310 | flags.mask = BIT(flag); |
e18f4c18 | 311 | |
5961d6a1 VO |
312 | if (br_port_flag_is_set(brport_dev, BIT(flag))) |
313 | flags.val = BIT(flag); | |
5e38c158 | 314 | |
5961d6a1 VO |
315 | err = dsa_port_bridge_flags(dp, flags, extack); |
316 | if (err && err != -EOPNOTSUPP) | |
317 | return err; | |
318 | } | |
319 | ||
320 | return 0; | |
321 | } | |
322 | ||
323 | static void dsa_port_clear_brport_flags(struct dsa_port *dp) | |
324 | { | |
325 | const unsigned long val = BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD; | |
326 | const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | | |
b9e8b58f | 327 | BR_BCAST_FLOOD | BR_PORT_LOCKED; |
5961d6a1 VO |
328 | int flag, err; |
329 | ||
330 | for_each_set_bit(flag, &mask, 32) { | |
331 | struct switchdev_brport_flags flags = {0}; | |
332 | ||
333 | flags.mask = BIT(flag); | |
334 | flags.val = val & BIT(flag); | |
335 | ||
336 | err = dsa_port_bridge_flags(dp, flags, NULL); | |
337 | if (err && err != -EOPNOTSUPP) | |
338 | dev_err(dp->ds->dev, | |
339 | "failed to clear bridge port flag %lu: %pe\n", | |
340 | flags.val, ERR_PTR(err)); | |
5e38c158 VO |
341 | } |
342 | } | |
343 | ||
4e51bf44 VO |
344 | static int dsa_port_switchdev_sync_attrs(struct dsa_port *dp, |
345 | struct netlink_ext_ack *extack) | |
5961d6a1 | 346 | { |
010e269f | 347 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
36cbf39b | 348 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
5961d6a1 VO |
349 | int err; |
350 | ||
351 | err = dsa_port_inherit_brport_flags(dp, extack); | |
352 | if (err) | |
353 | return err; | |
354 | ||
39f32101 | 355 | err = dsa_port_set_state(dp, br_port_get_stp_state(brport_dev), false); |
010e269f VO |
356 | if (err && err != -EOPNOTSUPP) |
357 | return err; | |
358 | ||
359 | err = dsa_port_vlan_filtering(dp, br_vlan_enabled(br), extack); | |
360 | if (err && err != -EOPNOTSUPP) | |
361 | return err; | |
362 | ||
010e269f VO |
363 | err = dsa_port_ageing_time(dp, br_get_ageing_time(br)); |
364 | if (err && err != -EOPNOTSUPP) | |
365 | return err; | |
366 | ||
74918945 VO |
367 | return 0; |
368 | } | |
369 | ||
8e9e678e VO |
370 | static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp, |
371 | struct dsa_bridge bridge) | |
5961d6a1 VO |
372 | { |
373 | /* Configure the port for standalone mode (no address learning, | |
374 | * flood everything). | |
375 | * The bridge only emits SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS events | |
376 | * when the user requests it through netlink or sysfs, but not | |
377 | * automatically at port join or leave, so we need to handle resetting | |
378 | * the brport flags ourselves. But we even prefer it that way, because | |
379 | * otherwise, some setups might never get the notification they need, | |
380 | * for example, when a port leaves a LAG that offloads the bridge, | |
381 | * it becomes standalone, but as far as the bridge is concerned, no | |
382 | * port ever left. | |
383 | */ | |
384 | dsa_port_clear_brport_flags(dp); | |
385 | ||
386 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
387 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
388 | */ | |
39f32101 | 389 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING, true); |
010e269f | 390 | |
8e9e678e | 391 | dsa_port_reset_vlan_filtering(dp, bridge); |
010e269f | 392 | |
010e269f VO |
393 | /* Ageing time may be global to the switch chip, so don't change it |
394 | * here because we have no good reason (or value) to change it to. | |
395 | */ | |
5961d6a1 VO |
396 | } |
397 | ||
947c8746 VO |
398 | static int dsa_port_bridge_create(struct dsa_port *dp, |
399 | struct net_device *br, | |
400 | struct netlink_ext_ack *extack) | |
401 | { | |
402 | struct dsa_switch *ds = dp->ds; | |
d3eed0e5 | 403 | struct dsa_bridge *bridge; |
947c8746 | 404 | |
d3eed0e5 VO |
405 | bridge = dsa_tree_bridge_find(ds->dst, br); |
406 | if (bridge) { | |
407 | refcount_inc(&bridge->refcount); | |
408 | dp->bridge = bridge; | |
947c8746 | 409 | return 0; |
d3eed0e5 VO |
410 | } |
411 | ||
412 | bridge = kzalloc(sizeof(*bridge), GFP_KERNEL); | |
413 | if (!bridge) | |
414 | return -ENOMEM; | |
415 | ||
416 | refcount_set(&bridge->refcount, 1); | |
417 | ||
418 | bridge->dev = br; | |
947c8746 | 419 | |
d3eed0e5 VO |
420 | bridge->num = dsa_bridge_num_get(br, ds->max_num_bridges); |
421 | if (ds->max_num_bridges && !bridge->num) { | |
947c8746 VO |
422 | NL_SET_ERR_MSG_MOD(extack, |
423 | "Range of offloadable bridges exceeded"); | |
d3eed0e5 | 424 | kfree(bridge); |
947c8746 | 425 | return -EOPNOTSUPP; |
123abc06 VO |
426 | } |
427 | ||
d3eed0e5 | 428 | dp->bridge = bridge; |
947c8746 VO |
429 | |
430 | return 0; | |
431 | } | |
432 | ||
433 | static void dsa_port_bridge_destroy(struct dsa_port *dp, | |
434 | const struct net_device *br) | |
435 | { | |
d3eed0e5 VO |
436 | struct dsa_bridge *bridge = dp->bridge; |
437 | ||
438 | dp->bridge = NULL; | |
947c8746 | 439 | |
d3eed0e5 VO |
440 | if (!refcount_dec_and_test(&bridge->refcount)) |
441 | return; | |
947c8746 | 442 | |
d3eed0e5 VO |
443 | if (bridge->num) |
444 | dsa_bridge_num_put(br, bridge->num); | |
947c8746 | 445 | |
d3eed0e5 | 446 | kfree(bridge); |
123abc06 VO |
447 | } |
448 | ||
332afc4c TW |
449 | static bool dsa_port_supports_mst(struct dsa_port *dp) |
450 | { | |
8e6598a7 TW |
451 | struct dsa_switch *ds = dp->ds; |
452 | ||
453 | return ds->ops->vlan_msti_set && | |
7414af30 TW |
454 | ds->ops->port_mst_state_set && |
455 | ds->ops->port_vlan_fast_age && | |
8e6598a7 | 456 | dsa_port_can_configure_learning(dp); |
332afc4c TW |
457 | } |
458 | ||
2afc526a VO |
459 | int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, |
460 | struct netlink_ext_ack *extack) | |
cfbed329 VD |
461 | { |
462 | struct dsa_notifier_bridge_info info = { | |
726816a1 | 463 | .dp = dp, |
06b9cce4 | 464 | .extack = extack, |
cfbed329 | 465 | }; |
2f5dc00f VO |
466 | struct net_device *dev = dp->slave; |
467 | struct net_device *brport_dev; | |
cfbed329 VD |
468 | int err; |
469 | ||
332afc4c TW |
470 | if (br_mst_enabled(br) && !dsa_port_supports_mst(dp)) |
471 | return -EOPNOTSUPP; | |
472 | ||
c1388063 RK |
473 | /* Here the interface is already bridged. Reflect the current |
474 | * configuration so that drivers can program their chips accordingly. | |
cfbed329 | 475 | */ |
947c8746 VO |
476 | err = dsa_port_bridge_create(dp, br, extack); |
477 | if (err) | |
478 | return err; | |
cfbed329 | 479 | |
2f5dc00f VO |
480 | brport_dev = dsa_port_to_bridge_port(dp); |
481 | ||
d3eed0e5 | 482 | info.bridge = *dp->bridge; |
f66a6a69 | 483 | err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info); |
5961d6a1 VO |
484 | if (err) |
485 | goto out_rollback; | |
cfbed329 | 486 | |
857fdd74 VO |
487 | /* Drivers which support bridge TX forwarding should set this */ |
488 | dp->bridge->tx_fwd_offload = info.tx_fwd_offload; | |
123abc06 | 489 | |
4e51bf44 VO |
490 | err = switchdev_bridge_port_offload(brport_dev, dev, dp, |
491 | &dsa_slave_switchdev_notifier, | |
492 | &dsa_slave_switchdev_blocking_notifier, | |
857fdd74 | 493 | dp->bridge->tx_fwd_offload, extack); |
5961d6a1 VO |
494 | if (err) |
495 | goto out_rollback_unbridge; | |
496 | ||
4e51bf44 | 497 | err = dsa_port_switchdev_sync_attrs(dp, extack); |
2f5dc00f VO |
498 | if (err) |
499 | goto out_rollback_unoffload; | |
500 | ||
5961d6a1 | 501 | return 0; |
cfbed329 | 502 | |
2f5dc00f | 503 | out_rollback_unoffload: |
4e51bf44 VO |
504 | switchdev_bridge_port_unoffload(brport_dev, dp, |
505 | &dsa_slave_switchdev_notifier, | |
506 | &dsa_slave_switchdev_blocking_notifier); | |
630fd482 | 507 | dsa_flush_workqueue(); |
5961d6a1 VO |
508 | out_rollback_unbridge: |
509 | dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); | |
510 | out_rollback: | |
947c8746 | 511 | dsa_port_bridge_destroy(dp, br); |
cfbed329 VD |
512 | return err; |
513 | } | |
514 | ||
4e51bf44 | 515 | void dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br) |
74918945 | 516 | { |
2f5dc00f VO |
517 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
518 | ||
09dba21b VO |
519 | /* Don't try to unoffload something that is not offloaded */ |
520 | if (!brport_dev) | |
521 | return; | |
522 | ||
4e51bf44 VO |
523 | switchdev_bridge_port_unoffload(brport_dev, dp, |
524 | &dsa_slave_switchdev_notifier, | |
525 | &dsa_slave_switchdev_blocking_notifier); | |
d7d0d423 VO |
526 | |
527 | dsa_flush_workqueue(); | |
74918945 VO |
528 | } |
529 | ||
cfbed329 VD |
530 | void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) |
531 | { | |
532 | struct dsa_notifier_bridge_info info = { | |
726816a1 | 533 | .dp = dp, |
cfbed329 VD |
534 | }; |
535 | int err; | |
536 | ||
342b6419 AÅ |
537 | /* If the port could not be offloaded to begin with, then |
538 | * there is nothing to do. | |
539 | */ | |
540 | if (!dp->bridge) | |
541 | return; | |
542 | ||
543 | info.bridge = *dp->bridge; | |
544 | ||
cfbed329 VD |
545 | /* Here the port is already unbridged. Reflect the current configuration |
546 | * so that drivers can program their chips accordingly. | |
547 | */ | |
947c8746 | 548 | dsa_port_bridge_destroy(dp, br); |
cfbed329 | 549 | |
f66a6a69 | 550 | err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); |
cfbed329 | 551 | if (err) |
ab97462b VO |
552 | dev_err(dp->ds->dev, |
553 | "port %d failed to notify DSA_NOTIFIER_BRIDGE_LEAVE: %pe\n", | |
554 | dp->index, ERR_PTR(err)); | |
cfbed329 | 555 | |
8e9e678e | 556 | dsa_port_switchdev_unsync_attrs(dp, info.bridge); |
cfbed329 | 557 | } |
4d61d304 | 558 | |
058102a6 TW |
559 | int dsa_port_lag_change(struct dsa_port *dp, |
560 | struct netdev_lag_lower_state_info *linfo) | |
561 | { | |
562 | struct dsa_notifier_lag_info info = { | |
726816a1 | 563 | .dp = dp, |
058102a6 TW |
564 | }; |
565 | bool tx_enabled; | |
566 | ||
dedd6a00 | 567 | if (!dp->lag) |
058102a6 TW |
568 | return 0; |
569 | ||
570 | /* On statically configured aggregates (e.g. loadbalance | |
571 | * without LACP) ports will always be tx_enabled, even if the | |
572 | * link is down. Thus we require both link_up and tx_enabled | |
573 | * in order to include it in the tx set. | |
574 | */ | |
575 | tx_enabled = linfo->link_up && linfo->tx_enabled; | |
576 | ||
577 | if (tx_enabled == dp->lag_tx_enabled) | |
578 | return 0; | |
579 | ||
580 | dp->lag_tx_enabled = tx_enabled; | |
581 | ||
582 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_CHANGE, &info); | |
583 | } | |
584 | ||
dedd6a00 VO |
585 | static int dsa_port_lag_create(struct dsa_port *dp, |
586 | struct net_device *lag_dev) | |
587 | { | |
588 | struct dsa_switch *ds = dp->ds; | |
589 | struct dsa_lag *lag; | |
590 | ||
591 | lag = dsa_tree_lag_find(ds->dst, lag_dev); | |
592 | if (lag) { | |
593 | refcount_inc(&lag->refcount); | |
594 | dp->lag = lag; | |
595 | return 0; | |
596 | } | |
597 | ||
598 | lag = kzalloc(sizeof(*lag), GFP_KERNEL); | |
599 | if (!lag) | |
600 | return -ENOMEM; | |
601 | ||
602 | refcount_set(&lag->refcount, 1); | |
e212fa7c VO |
603 | mutex_init(&lag->fdb_lock); |
604 | INIT_LIST_HEAD(&lag->fdbs); | |
dedd6a00 VO |
605 | lag->dev = lag_dev; |
606 | dsa_lag_map(ds->dst, lag); | |
607 | dp->lag = lag; | |
608 | ||
609 | return 0; | |
610 | } | |
611 | ||
612 | static void dsa_port_lag_destroy(struct dsa_port *dp) | |
613 | { | |
614 | struct dsa_lag *lag = dp->lag; | |
615 | ||
616 | dp->lag = NULL; | |
617 | dp->lag_tx_enabled = false; | |
618 | ||
619 | if (!refcount_dec_and_test(&lag->refcount)) | |
620 | return; | |
621 | ||
e212fa7c | 622 | WARN_ON(!list_empty(&lag->fdbs)); |
dedd6a00 VO |
623 | dsa_lag_unmap(dp->ds->dst, lag); |
624 | kfree(lag); | |
625 | } | |
626 | ||
46a76724 | 627 | int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag_dev, |
2afc526a VO |
628 | struct netdev_lag_upper_info *uinfo, |
629 | struct netlink_ext_ack *extack) | |
058102a6 TW |
630 | { |
631 | struct dsa_notifier_lag_info info = { | |
726816a1 | 632 | .dp = dp, |
058102a6 TW |
633 | .info = uinfo, |
634 | }; | |
185c9a76 | 635 | struct net_device *bridge_dev; |
058102a6 TW |
636 | int err; |
637 | ||
dedd6a00 VO |
638 | err = dsa_port_lag_create(dp, lag_dev); |
639 | if (err) | |
640 | goto err_lag_create; | |
058102a6 | 641 | |
dedd6a00 | 642 | info.lag = *dp->lag; |
058102a6 | 643 | err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_JOIN, &info); |
185c9a76 VO |
644 | if (err) |
645 | goto err_lag_join; | |
058102a6 | 646 | |
46a76724 | 647 | bridge_dev = netdev_master_upper_dev_get(lag_dev); |
185c9a76 VO |
648 | if (!bridge_dev || !netif_is_bridge_master(bridge_dev)) |
649 | return 0; | |
650 | ||
2afc526a | 651 | err = dsa_port_bridge_join(dp, bridge_dev, extack); |
185c9a76 VO |
652 | if (err) |
653 | goto err_bridge_join; | |
654 | ||
655 | return 0; | |
656 | ||
657 | err_bridge_join: | |
658 | dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info); | |
659 | err_lag_join: | |
dedd6a00 VO |
660 | dsa_port_lag_destroy(dp); |
661 | err_lag_create: | |
058102a6 TW |
662 | return err; |
663 | } | |
664 | ||
46a76724 | 665 | void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag_dev) |
74918945 | 666 | { |
36cbf39b VO |
667 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
668 | ||
669 | if (br) | |
670 | dsa_port_pre_bridge_leave(dp, br); | |
74918945 VO |
671 | } |
672 | ||
46a76724 | 673 | void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag_dev) |
058102a6 | 674 | { |
36cbf39b | 675 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
058102a6 | 676 | struct dsa_notifier_lag_info info = { |
726816a1 | 677 | .dp = dp, |
058102a6 TW |
678 | }; |
679 | int err; | |
680 | ||
dedd6a00 | 681 | if (!dp->lag) |
058102a6 TW |
682 | return; |
683 | ||
684 | /* Port might have been part of a LAG that in turn was | |
685 | * attached to a bridge. | |
686 | */ | |
36cbf39b VO |
687 | if (br) |
688 | dsa_port_bridge_leave(dp, br); | |
058102a6 | 689 | |
dedd6a00 VO |
690 | info.lag = *dp->lag; |
691 | ||
692 | dsa_port_lag_destroy(dp); | |
058102a6 TW |
693 | |
694 | err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info); | |
695 | if (err) | |
ab97462b VO |
696 | dev_err(dp->ds->dev, |
697 | "port %d failed to notify DSA_NOTIFIER_LAG_LEAVE: %pe\n", | |
698 | dp->index, ERR_PTR(err)); | |
058102a6 TW |
699 | } |
700 | ||
adb256eb | 701 | /* Must be called under rcu_read_lock() */ |
8f5d16f6 | 702 | static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, |
89153ed6 VO |
703 | bool vlan_filtering, |
704 | struct netlink_ext_ack *extack) | |
8f5d16f6 VO |
705 | { |
706 | struct dsa_switch *ds = dp->ds; | |
d0004a02 VO |
707 | struct dsa_port *other_dp; |
708 | int err; | |
adb256eb VO |
709 | |
710 | /* VLAN awareness was off, so the question is "can we turn it on". | |
711 | * We may have had 8021q uppers, those need to go. Make sure we don't | |
712 | * enter an inconsistent state: deny changing the VLAN awareness state | |
713 | * as long as we have 8021q uppers. | |
714 | */ | |
57d77986 | 715 | if (vlan_filtering && dsa_port_is_user(dp)) { |
36cbf39b | 716 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
adb256eb | 717 | struct net_device *upper_dev, *slave = dp->slave; |
adb256eb VO |
718 | struct list_head *iter; |
719 | ||
720 | netdev_for_each_upper_dev_rcu(slave, upper_dev, iter) { | |
721 | struct bridge_vlan_info br_info; | |
722 | u16 vid; | |
723 | ||
724 | if (!is_vlan_dev(upper_dev)) | |
725 | continue; | |
726 | ||
727 | vid = vlan_dev_vlan_id(upper_dev); | |
728 | ||
729 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
730 | * device, respectively the VID is not found, returning | |
731 | * 0 means success, which is a failure for us here. | |
732 | */ | |
733 | err = br_vlan_get_info(br, vid, &br_info); | |
734 | if (err == 0) { | |
89153ed6 VO |
735 | NL_SET_ERR_MSG_MOD(extack, |
736 | "Must first remove VLAN uppers having VIDs also present in bridge"); | |
adb256eb VO |
737 | return false; |
738 | } | |
739 | } | |
740 | } | |
8f5d16f6 VO |
741 | |
742 | if (!ds->vlan_filtering_is_global) | |
743 | return true; | |
744 | ||
745 | /* For cases where enabling/disabling VLAN awareness is global to the | |
746 | * switch, we need to handle the case where multiple bridges span | |
747 | * different ports of the same switch device and one of them has a | |
748 | * different setting than what is being requested. | |
749 | */ | |
d0004a02 | 750 | dsa_switch_for_each_port(other_dp, ds) { |
36cbf39b | 751 | struct net_device *other_br = dsa_port_bridge_dev_get(other_dp); |
8f5d16f6 | 752 | |
8f5d16f6 VO |
753 | /* If it's the same bridge, it also has same |
754 | * vlan_filtering setting => no need to check | |
755 | */ | |
36cbf39b | 756 | if (!other_br || other_br == dsa_port_bridge_dev_get(dp)) |
8f5d16f6 | 757 | continue; |
36cbf39b VO |
758 | |
759 | if (br_vlan_enabled(other_br) != vlan_filtering) { | |
89153ed6 VO |
760 | NL_SET_ERR_MSG_MOD(extack, |
761 | "VLAN filtering is a global setting"); | |
8f5d16f6 VO |
762 | return false; |
763 | } | |
764 | } | |
765 | return true; | |
766 | } | |
767 | ||
89153ed6 VO |
768 | int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, |
769 | struct netlink_ext_ack *extack) | |
4d61d304 | 770 | { |
06cfb2df | 771 | bool old_vlan_filtering = dsa_port_is_vlan_filtering(dp); |
4d61d304 | 772 | struct dsa_switch *ds = dp->ds; |
bae33f2b | 773 | bool apply; |
33162e9a | 774 | int err; |
4d61d304 | 775 | |
bae33f2b VO |
776 | if (!ds->ops->port_vlan_filtering) |
777 | return -EOPNOTSUPP; | |
adb256eb | 778 | |
bae33f2b VO |
779 | /* We are called from dsa_slave_switchdev_blocking_event(), |
780 | * which is not under rcu_read_lock(), unlike | |
781 | * dsa_slave_switchdev_event(). | |
782 | */ | |
783 | rcu_read_lock(); | |
89153ed6 | 784 | apply = dsa_port_can_apply_vlan_filtering(dp, vlan_filtering, extack); |
bae33f2b VO |
785 | rcu_read_unlock(); |
786 | if (!apply) | |
787 | return -EINVAL; | |
8f5d16f6 | 788 | |
ec9121e7 VO |
789 | if (dsa_port_is_vlan_filtering(dp) == vlan_filtering) |
790 | return 0; | |
791 | ||
89153ed6 VO |
792 | err = ds->ops->port_vlan_filtering(ds, dp->index, vlan_filtering, |
793 | extack); | |
8f5d16f6 VO |
794 | if (err) |
795 | return err; | |
796 | ||
06cfb2df | 797 | if (ds->vlan_filtering_is_global) { |
d0004a02 | 798 | struct dsa_port *other_dp; |
06cfb2df | 799 | |
bae33f2b | 800 | ds->vlan_filtering = vlan_filtering; |
06cfb2df | 801 | |
d0004a02 | 802 | dsa_switch_for_each_user_port(other_dp, ds) { |
4db2a5ef | 803 | struct net_device *slave = other_dp->slave; |
06cfb2df VO |
804 | |
805 | /* We might be called in the unbind path, so not | |
806 | * all slave devices might still be registered. | |
807 | */ | |
06cfb2df VO |
808 | if (!slave) |
809 | continue; | |
810 | ||
811 | err = dsa_slave_manage_vlan_filtering(slave, | |
812 | vlan_filtering); | |
813 | if (err) | |
814 | goto restore; | |
815 | } | |
816 | } else { | |
bae33f2b | 817 | dp->vlan_filtering = vlan_filtering; |
2e554a7a | 818 | |
06cfb2df VO |
819 | err = dsa_slave_manage_vlan_filtering(dp->slave, |
820 | vlan_filtering); | |
821 | if (err) | |
822 | goto restore; | |
823 | } | |
824 | ||
4d61d304 | 825 | return 0; |
06cfb2df VO |
826 | |
827 | restore: | |
828 | ds->ops->port_vlan_filtering(ds, dp->index, old_vlan_filtering, NULL); | |
829 | ||
830 | if (ds->vlan_filtering_is_global) | |
831 | ds->vlan_filtering = old_vlan_filtering; | |
832 | else | |
833 | dp->vlan_filtering = old_vlan_filtering; | |
834 | ||
835 | return err; | |
4d61d304 | 836 | } |
d87bd94e | 837 | |
54a0ed0d RK |
838 | /* This enforces legacy behavior for switch drivers which assume they can't |
839 | * receive VLAN configuration when enslaved to a bridge with vlan_filtering=0 | |
840 | */ | |
841 | bool dsa_port_skip_vlan_configuration(struct dsa_port *dp) | |
842 | { | |
36cbf39b | 843 | struct net_device *br = dsa_port_bridge_dev_get(dp); |
54a0ed0d RK |
844 | struct dsa_switch *ds = dp->ds; |
845 | ||
36cbf39b | 846 | if (!br) |
54a0ed0d RK |
847 | return false; |
848 | ||
36cbf39b | 849 | return !ds->configure_vlan_while_not_filtering && !br_vlan_enabled(br); |
54a0ed0d RK |
850 | } |
851 | ||
bae33f2b | 852 | int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock) |
d87bd94e VD |
853 | { |
854 | unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock); | |
855 | unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies); | |
bae33f2b | 856 | struct dsa_notifier_ageing_time_info info; |
bae33f2b VO |
857 | int err; |
858 | ||
859 | info.ageing_time = ageing_time; | |
d87bd94e | 860 | |
bae33f2b VO |
861 | err = dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info); |
862 | if (err) | |
863 | return err; | |
d87bd94e | 864 | |
d87bd94e | 865 | dp->ageing_time = ageing_time; |
d87bd94e | 866 | |
77b61365 | 867 | return 0; |
d87bd94e | 868 | } |
d1cffff0 | 869 | |
332afc4c TW |
870 | int dsa_port_mst_enable(struct dsa_port *dp, bool on, |
871 | struct netlink_ext_ack *extack) | |
872 | { | |
7414af30 | 873 | if (on && !dsa_port_supports_mst(dp)) { |
332afc4c TW |
874 | NL_SET_ERR_MSG_MOD(extack, "Hardware does not support MST"); |
875 | return -EINVAL; | |
876 | } | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
e18f4c18 | 881 | int dsa_port_pre_bridge_flags(const struct dsa_port *dp, |
a8b659e7 VO |
882 | struct switchdev_brport_flags flags, |
883 | struct netlink_ext_ack *extack) | |
ea87005a FF |
884 | { |
885 | struct dsa_switch *ds = dp->ds; | |
886 | ||
a8b659e7 | 887 | if (!ds->ops->port_pre_bridge_flags) |
ea87005a FF |
888 | return -EINVAL; |
889 | ||
a8b659e7 | 890 | return ds->ops->port_pre_bridge_flags(ds, dp->index, flags, extack); |
ea87005a FF |
891 | } |
892 | ||
045c45d1 | 893 | int dsa_port_bridge_flags(struct dsa_port *dp, |
a8b659e7 VO |
894 | struct switchdev_brport_flags flags, |
895 | struct netlink_ext_ack *extack) | |
57652796 RK |
896 | { |
897 | struct dsa_switch *ds = dp->ds; | |
045c45d1 | 898 | int err; |
57652796 | 899 | |
a8b659e7 | 900 | if (!ds->ops->port_bridge_flags) |
70a7c484 | 901 | return -EOPNOTSUPP; |
57652796 | 902 | |
045c45d1 VO |
903 | err = ds->ops->port_bridge_flags(ds, dp->index, flags, extack); |
904 | if (err) | |
905 | return err; | |
906 | ||
907 | if (flags.mask & BR_LEARNING) { | |
908 | bool learning = flags.val & BR_LEARNING; | |
909 | ||
910 | if (learning == dp->learning) | |
911 | return 0; | |
912 | ||
bee7c577 VO |
913 | if ((dp->learning && !learning) && |
914 | (dp->stp_state == BR_STATE_LEARNING || | |
915 | dp->stp_state == BR_STATE_FORWARDING)) | |
045c45d1 VO |
916 | dsa_port_fast_age(dp); |
917 | ||
918 | dp->learning = learning; | |
919 | } | |
920 | ||
921 | return 0; | |
57652796 RK |
922 | } |
923 | ||
72c3b0c7 VO |
924 | void dsa_port_set_host_flood(struct dsa_port *dp, bool uc, bool mc) |
925 | { | |
926 | struct dsa_switch *ds = dp->ds; | |
927 | ||
928 | if (ds->ops->port_set_host_flood) | |
929 | ds->ops->port_set_host_flood(ds, dp->index, uc, mc); | |
930 | } | |
931 | ||
8e6598a7 TW |
932 | int dsa_port_vlan_msti(struct dsa_port *dp, |
933 | const struct switchdev_vlan_msti *msti) | |
934 | { | |
935 | struct dsa_switch *ds = dp->ds; | |
936 | ||
937 | if (!ds->ops->vlan_msti_set) | |
938 | return -EOPNOTSUPP; | |
939 | ||
940 | return ds->ops->vlan_msti_set(ds, *dp->bridge, msti); | |
941 | } | |
942 | ||
be6ff966 | 943 | int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu) |
bfcb8132 VO |
944 | { |
945 | struct dsa_notifier_mtu_info info = { | |
726816a1 | 946 | .dp = dp, |
bfcb8132 VO |
947 | .mtu = new_mtu, |
948 | }; | |
949 | ||
950 | return dsa_port_notify(dp, DSA_NOTIFIER_MTU, &info); | |
951 | } | |
952 | ||
2acf4e6a AS |
953 | int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr, |
954 | u16 vid) | |
d1cffff0 | 955 | { |
685fb6a4 | 956 | struct dsa_notifier_fdb_info info = { |
726816a1 | 957 | .dp = dp, |
2acf4e6a AS |
958 | .addr = addr, |
959 | .vid = vid, | |
c2693363 VO |
960 | .db = { |
961 | .type = DSA_DB_BRIDGE, | |
962 | .bridge = *dp->bridge, | |
963 | }, | |
685fb6a4 | 964 | }; |
d1cffff0 | 965 | |
c2693363 VO |
966 | /* Refcounting takes bridge.num as a key, and should be global for all |
967 | * bridges in the absence of FDB isolation, and per bridge otherwise. | |
968 | * Force the bridge.num to zero here in the absence of FDB isolation. | |
969 | */ | |
970 | if (!dp->ds->fdb_isolation) | |
971 | info.db.bridge.num = 0; | |
972 | ||
685fb6a4 | 973 | return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info); |
d1cffff0 VD |
974 | } |
975 | ||
2acf4e6a AS |
976 | int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr, |
977 | u16 vid) | |
d1cffff0 | 978 | { |
685fb6a4 | 979 | struct dsa_notifier_fdb_info info = { |
726816a1 | 980 | .dp = dp, |
2acf4e6a AS |
981 | .addr = addr, |
982 | .vid = vid, | |
c2693363 VO |
983 | .db = { |
984 | .type = DSA_DB_BRIDGE, | |
985 | .bridge = *dp->bridge, | |
986 | }, | |
685fb6a4 | 987 | }; |
d1cffff0 | 988 | |
c2693363 VO |
989 | if (!dp->ds->fdb_isolation) |
990 | info.db.bridge.num = 0; | |
991 | ||
685fb6a4 | 992 | return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info); |
d1cffff0 VD |
993 | } |
994 | ||
5e8a1e03 VO |
995 | static int dsa_port_host_fdb_add(struct dsa_port *dp, |
996 | const unsigned char *addr, u16 vid, | |
997 | struct dsa_db db) | |
3dc80afc VO |
998 | { |
999 | struct dsa_notifier_fdb_info info = { | |
726816a1 | 1000 | .dp = dp, |
3dc80afc VO |
1001 | .addr = addr, |
1002 | .vid = vid, | |
5e8a1e03 VO |
1003 | .db = db, |
1004 | }; | |
1005 | ||
1006 | if (!dp->ds->fdb_isolation) | |
1007 | info.db.bridge.num = 0; | |
1008 | ||
1009 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_ADD, &info); | |
1010 | } | |
1011 | ||
1012 | int dsa_port_standalone_host_fdb_add(struct dsa_port *dp, | |
1013 | const unsigned char *addr, u16 vid) | |
1014 | { | |
1015 | struct dsa_db db = { | |
1016 | .type = DSA_DB_PORT, | |
1017 | .dp = dp, | |
3dc80afc | 1018 | }; |
5e8a1e03 VO |
1019 | |
1020 | return dsa_port_host_fdb_add(dp, addr, vid, db); | |
1021 | } | |
1022 | ||
1023 | int dsa_port_bridge_host_fdb_add(struct dsa_port *dp, | |
1024 | const unsigned char *addr, u16 vid) | |
1025 | { | |
26ee7b06 | 1026 | struct dsa_port *cpu_dp = dp->cpu_dp; |
5e8a1e03 VO |
1027 | struct dsa_db db = { |
1028 | .type = DSA_DB_BRIDGE, | |
1029 | .bridge = *dp->bridge, | |
1030 | }; | |
26ee7b06 VO |
1031 | int err; |
1032 | ||
8940e6b6 VO |
1033 | /* Avoid a call to __dev_set_promiscuity() on the master, which |
1034 | * requires rtnl_lock(), since we can't guarantee that is held here, | |
1035 | * and we can't take it either. | |
1036 | */ | |
1037 | if (cpu_dp->master->priv_flags & IFF_UNICAST_FLT) { | |
1038 | err = dev_uc_add(cpu_dp->master, addr); | |
1039 | if (err) | |
1040 | return err; | |
1041 | } | |
3dc80afc | 1042 | |
5e8a1e03 | 1043 | return dsa_port_host_fdb_add(dp, addr, vid, db); |
3dc80afc VO |
1044 | } |
1045 | ||
5e8a1e03 VO |
1046 | static int dsa_port_host_fdb_del(struct dsa_port *dp, |
1047 | const unsigned char *addr, u16 vid, | |
1048 | struct dsa_db db) | |
3dc80afc VO |
1049 | { |
1050 | struct dsa_notifier_fdb_info info = { | |
726816a1 | 1051 | .dp = dp, |
3dc80afc VO |
1052 | .addr = addr, |
1053 | .vid = vid, | |
5e8a1e03 VO |
1054 | .db = db, |
1055 | }; | |
1056 | ||
1057 | if (!dp->ds->fdb_isolation) | |
1058 | info.db.bridge.num = 0; | |
1059 | ||
1060 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_DEL, &info); | |
1061 | } | |
1062 | ||
1063 | int dsa_port_standalone_host_fdb_del(struct dsa_port *dp, | |
1064 | const unsigned char *addr, u16 vid) | |
1065 | { | |
1066 | struct dsa_db db = { | |
1067 | .type = DSA_DB_PORT, | |
1068 | .dp = dp, | |
3dc80afc | 1069 | }; |
5e8a1e03 VO |
1070 | |
1071 | return dsa_port_host_fdb_del(dp, addr, vid, db); | |
1072 | } | |
1073 | ||
1074 | int dsa_port_bridge_host_fdb_del(struct dsa_port *dp, | |
1075 | const unsigned char *addr, u16 vid) | |
1076 | { | |
26ee7b06 | 1077 | struct dsa_port *cpu_dp = dp->cpu_dp; |
5e8a1e03 VO |
1078 | struct dsa_db db = { |
1079 | .type = DSA_DB_BRIDGE, | |
1080 | .bridge = *dp->bridge, | |
1081 | }; | |
26ee7b06 VO |
1082 | int err; |
1083 | ||
8940e6b6 VO |
1084 | if (cpu_dp->master->priv_flags & IFF_UNICAST_FLT) { |
1085 | err = dev_uc_del(cpu_dp->master, addr); | |
1086 | if (err) | |
1087 | return err; | |
1088 | } | |
3dc80afc | 1089 | |
5e8a1e03 | 1090 | return dsa_port_host_fdb_del(dp, addr, vid, db); |
3dc80afc VO |
1091 | } |
1092 | ||
e212fa7c VO |
1093 | int dsa_port_lag_fdb_add(struct dsa_port *dp, const unsigned char *addr, |
1094 | u16 vid) | |
1095 | { | |
1096 | struct dsa_notifier_lag_fdb_info info = { | |
1097 | .lag = dp->lag, | |
1098 | .addr = addr, | |
1099 | .vid = vid, | |
c2693363 VO |
1100 | .db = { |
1101 | .type = DSA_DB_BRIDGE, | |
1102 | .bridge = *dp->bridge, | |
1103 | }, | |
e212fa7c VO |
1104 | }; |
1105 | ||
c2693363 VO |
1106 | if (!dp->ds->fdb_isolation) |
1107 | info.db.bridge.num = 0; | |
1108 | ||
e212fa7c VO |
1109 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_FDB_ADD, &info); |
1110 | } | |
1111 | ||
1112 | int dsa_port_lag_fdb_del(struct dsa_port *dp, const unsigned char *addr, | |
1113 | u16 vid) | |
1114 | { | |
1115 | struct dsa_notifier_lag_fdb_info info = { | |
1116 | .lag = dp->lag, | |
1117 | .addr = addr, | |
1118 | .vid = vid, | |
c2693363 VO |
1119 | .db = { |
1120 | .type = DSA_DB_BRIDGE, | |
1121 | .bridge = *dp->bridge, | |
1122 | }, | |
e212fa7c VO |
1123 | }; |
1124 | ||
c2693363 VO |
1125 | if (!dp->ds->fdb_isolation) |
1126 | info.db.bridge.num = 0; | |
1127 | ||
e212fa7c VO |
1128 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_FDB_DEL, &info); |
1129 | } | |
1130 | ||
de40fc5d VD |
1131 | int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data) |
1132 | { | |
1133 | struct dsa_switch *ds = dp->ds; | |
1134 | int port = dp->index; | |
1135 | ||
1136 | if (!ds->ops->port_fdb_dump) | |
1137 | return -EOPNOTSUPP; | |
1138 | ||
1139 | return ds->ops->port_fdb_dump(ds, port, cb, data); | |
1140 | } | |
1141 | ||
bb9f6031 | 1142 | int dsa_port_mdb_add(const struct dsa_port *dp, |
ffb68fc5 | 1143 | const struct switchdev_obj_port_mdb *mdb) |
3a9afea3 | 1144 | { |
8ae5bcdc | 1145 | struct dsa_notifier_mdb_info info = { |
726816a1 | 1146 | .dp = dp, |
8ae5bcdc | 1147 | .mdb = mdb, |
c2693363 VO |
1148 | .db = { |
1149 | .type = DSA_DB_BRIDGE, | |
1150 | .bridge = *dp->bridge, | |
1151 | }, | |
8ae5bcdc | 1152 | }; |
3a9afea3 | 1153 | |
c2693363 VO |
1154 | if (!dp->ds->fdb_isolation) |
1155 | info.db.bridge.num = 0; | |
1156 | ||
8ae5bcdc | 1157 | return dsa_port_notify(dp, DSA_NOTIFIER_MDB_ADD, &info); |
3a9afea3 VD |
1158 | } |
1159 | ||
bb9f6031 | 1160 | int dsa_port_mdb_del(const struct dsa_port *dp, |
3a9afea3 VD |
1161 | const struct switchdev_obj_port_mdb *mdb) |
1162 | { | |
8ae5bcdc | 1163 | struct dsa_notifier_mdb_info info = { |
726816a1 | 1164 | .dp = dp, |
8ae5bcdc | 1165 | .mdb = mdb, |
c2693363 VO |
1166 | .db = { |
1167 | .type = DSA_DB_BRIDGE, | |
1168 | .bridge = *dp->bridge, | |
1169 | }, | |
8ae5bcdc | 1170 | }; |
3a9afea3 | 1171 | |
c2693363 VO |
1172 | if (!dp->ds->fdb_isolation) |
1173 | info.db.bridge.num = 0; | |
1174 | ||
8ae5bcdc | 1175 | return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info); |
3a9afea3 VD |
1176 | } |
1177 | ||
5e8a1e03 VO |
1178 | static int dsa_port_host_mdb_add(const struct dsa_port *dp, |
1179 | const struct switchdev_obj_port_mdb *mdb, | |
1180 | struct dsa_db db) | |
b8e997c4 VO |
1181 | { |
1182 | struct dsa_notifier_mdb_info info = { | |
726816a1 | 1183 | .dp = dp, |
b8e997c4 | 1184 | .mdb = mdb, |
5e8a1e03 VO |
1185 | .db = db, |
1186 | }; | |
1187 | ||
1188 | if (!dp->ds->fdb_isolation) | |
1189 | info.db.bridge.num = 0; | |
1190 | ||
1191 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_ADD, &info); | |
1192 | } | |
1193 | ||
1194 | int dsa_port_standalone_host_mdb_add(const struct dsa_port *dp, | |
1195 | const struct switchdev_obj_port_mdb *mdb) | |
1196 | { | |
1197 | struct dsa_db db = { | |
1198 | .type = DSA_DB_PORT, | |
1199 | .dp = dp, | |
b8e997c4 | 1200 | }; |
5e8a1e03 VO |
1201 | |
1202 | return dsa_port_host_mdb_add(dp, mdb, db); | |
1203 | } | |
1204 | ||
1205 | int dsa_port_bridge_host_mdb_add(const struct dsa_port *dp, | |
1206 | const struct switchdev_obj_port_mdb *mdb) | |
1207 | { | |
26ee7b06 | 1208 | struct dsa_port *cpu_dp = dp->cpu_dp; |
5e8a1e03 VO |
1209 | struct dsa_db db = { |
1210 | .type = DSA_DB_BRIDGE, | |
1211 | .bridge = *dp->bridge, | |
1212 | }; | |
26ee7b06 VO |
1213 | int err; |
1214 | ||
1215 | err = dev_mc_add(cpu_dp->master, mdb->addr); | |
1216 | if (err) | |
1217 | return err; | |
b8e997c4 | 1218 | |
5e8a1e03 | 1219 | return dsa_port_host_mdb_add(dp, mdb, db); |
b8e997c4 VO |
1220 | } |
1221 | ||
5e8a1e03 VO |
1222 | static int dsa_port_host_mdb_del(const struct dsa_port *dp, |
1223 | const struct switchdev_obj_port_mdb *mdb, | |
1224 | struct dsa_db db) | |
b8e997c4 VO |
1225 | { |
1226 | struct dsa_notifier_mdb_info info = { | |
726816a1 | 1227 | .dp = dp, |
b8e997c4 | 1228 | .mdb = mdb, |
5e8a1e03 VO |
1229 | .db = db, |
1230 | }; | |
1231 | ||
1232 | if (!dp->ds->fdb_isolation) | |
1233 | info.db.bridge.num = 0; | |
1234 | ||
1235 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_DEL, &info); | |
1236 | } | |
1237 | ||
1238 | int dsa_port_standalone_host_mdb_del(const struct dsa_port *dp, | |
1239 | const struct switchdev_obj_port_mdb *mdb) | |
1240 | { | |
1241 | struct dsa_db db = { | |
1242 | .type = DSA_DB_PORT, | |
1243 | .dp = dp, | |
b8e997c4 | 1244 | }; |
5e8a1e03 VO |
1245 | |
1246 | return dsa_port_host_mdb_del(dp, mdb, db); | |
1247 | } | |
1248 | ||
1249 | int dsa_port_bridge_host_mdb_del(const struct dsa_port *dp, | |
1250 | const struct switchdev_obj_port_mdb *mdb) | |
1251 | { | |
26ee7b06 | 1252 | struct dsa_port *cpu_dp = dp->cpu_dp; |
5e8a1e03 VO |
1253 | struct dsa_db db = { |
1254 | .type = DSA_DB_BRIDGE, | |
1255 | .bridge = *dp->bridge, | |
1256 | }; | |
26ee7b06 VO |
1257 | int err; |
1258 | ||
1259 | err = dev_mc_del(cpu_dp->master, mdb->addr); | |
1260 | if (err) | |
1261 | return err; | |
b8e997c4 | 1262 | |
5e8a1e03 | 1263 | return dsa_port_host_mdb_del(dp, mdb, db); |
b8e997c4 VO |
1264 | } |
1265 | ||
076e7133 | 1266 | int dsa_port_vlan_add(struct dsa_port *dp, |
31046a5f VO |
1267 | const struct switchdev_obj_port_vlan *vlan, |
1268 | struct netlink_ext_ack *extack) | |
076e7133 | 1269 | { |
d0c627b8 | 1270 | struct dsa_notifier_vlan_info info = { |
726816a1 | 1271 | .dp = dp, |
d0c627b8 | 1272 | .vlan = vlan, |
31046a5f | 1273 | .extack = extack, |
d0c627b8 | 1274 | }; |
076e7133 | 1275 | |
c5335d73 | 1276 | return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info); |
076e7133 VD |
1277 | } |
1278 | ||
1279 | int dsa_port_vlan_del(struct dsa_port *dp, | |
1280 | const struct switchdev_obj_port_vlan *vlan) | |
1281 | { | |
d0c627b8 | 1282 | struct dsa_notifier_vlan_info info = { |
726816a1 | 1283 | .dp = dp, |
d0c627b8 VD |
1284 | .vlan = vlan, |
1285 | }; | |
076e7133 | 1286 | |
c5335d73 | 1287 | return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info); |
076e7133 | 1288 | } |
57ab1ca2 | 1289 | |
134ef238 VO |
1290 | int dsa_port_host_vlan_add(struct dsa_port *dp, |
1291 | const struct switchdev_obj_port_vlan *vlan, | |
1292 | struct netlink_ext_ack *extack) | |
1293 | { | |
1294 | struct dsa_notifier_vlan_info info = { | |
726816a1 | 1295 | .dp = dp, |
134ef238 VO |
1296 | .vlan = vlan, |
1297 | .extack = extack, | |
1298 | }; | |
1299 | struct dsa_port *cpu_dp = dp->cpu_dp; | |
1300 | int err; | |
1301 | ||
1302 | err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_ADD, &info); | |
1303 | if (err && err != -EOPNOTSUPP) | |
1304 | return err; | |
1305 | ||
1306 | vlan_vid_add(cpu_dp->master, htons(ETH_P_8021Q), vlan->vid); | |
1307 | ||
1308 | return err; | |
1309 | } | |
1310 | ||
1311 | int dsa_port_host_vlan_del(struct dsa_port *dp, | |
1312 | const struct switchdev_obj_port_vlan *vlan) | |
1313 | { | |
1314 | struct dsa_notifier_vlan_info info = { | |
726816a1 | 1315 | .dp = dp, |
134ef238 VO |
1316 | .vlan = vlan, |
1317 | }; | |
1318 | struct dsa_port *cpu_dp = dp->cpu_dp; | |
1319 | int err; | |
1320 | ||
1321 | err = dsa_port_notify(dp, DSA_NOTIFIER_HOST_VLAN_DEL, &info); | |
1322 | if (err && err != -EOPNOTSUPP) | |
1323 | return err; | |
1324 | ||
1325 | vlan_vid_del(cpu_dp->master, htons(ETH_P_8021Q), vlan->vid); | |
1326 | ||
1327 | return err; | |
1328 | } | |
1329 | ||
c595c433 HV |
1330 | int dsa_port_mrp_add(const struct dsa_port *dp, |
1331 | const struct switchdev_obj_mrp *mrp) | |
1332 | { | |
cad69019 VO |
1333 | struct dsa_switch *ds = dp->ds; |
1334 | ||
1335 | if (!ds->ops->port_mrp_add) | |
1336 | return -EOPNOTSUPP; | |
c595c433 | 1337 | |
cad69019 | 1338 | return ds->ops->port_mrp_add(ds, dp->index, mrp); |
c595c433 HV |
1339 | } |
1340 | ||
1341 | int dsa_port_mrp_del(const struct dsa_port *dp, | |
1342 | const struct switchdev_obj_mrp *mrp) | |
1343 | { | |
cad69019 VO |
1344 | struct dsa_switch *ds = dp->ds; |
1345 | ||
1346 | if (!ds->ops->port_mrp_del) | |
1347 | return -EOPNOTSUPP; | |
c595c433 | 1348 | |
cad69019 | 1349 | return ds->ops->port_mrp_del(ds, dp->index, mrp); |
c595c433 HV |
1350 | } |
1351 | ||
1352 | int dsa_port_mrp_add_ring_role(const struct dsa_port *dp, | |
1353 | const struct switchdev_obj_ring_role_mrp *mrp) | |
1354 | { | |
cad69019 VO |
1355 | struct dsa_switch *ds = dp->ds; |
1356 | ||
1357 | if (!ds->ops->port_mrp_add_ring_role) | |
1358 | return -EOPNOTSUPP; | |
c595c433 | 1359 | |
cad69019 | 1360 | return ds->ops->port_mrp_add_ring_role(ds, dp->index, mrp); |
c595c433 HV |
1361 | } |
1362 | ||
1363 | int dsa_port_mrp_del_ring_role(const struct dsa_port *dp, | |
1364 | const struct switchdev_obj_ring_role_mrp *mrp) | |
1365 | { | |
cad69019 VO |
1366 | struct dsa_switch *ds = dp->ds; |
1367 | ||
1368 | if (!ds->ops->port_mrp_del_ring_role) | |
1369 | return -EOPNOTSUPP; | |
c595c433 | 1370 | |
cad69019 | 1371 | return ds->ops->port_mrp_del_ring_role(ds, dp->index, mrp); |
c595c433 HV |
1372 | } |
1373 | ||
53da0eba VO |
1374 | void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp, |
1375 | const struct dsa_device_ops *tag_ops) | |
1376 | { | |
53da0eba VO |
1377 | cpu_dp->rcv = tag_ops->rcv; |
1378 | cpu_dp->tag_ops = tag_ops; | |
1379 | } | |
1380 | ||
6207a78c | 1381 | static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp) |
33615367 | 1382 | { |
33615367 | 1383 | struct device_node *phy_dn; |
33615367 | 1384 | struct phy_device *phydev; |
33615367 | 1385 | |
6207a78c | 1386 | phy_dn = of_parse_phandle(dp->dn, "phy-handle", 0); |
33615367 | 1387 | if (!phy_dn) |
6207a78c | 1388 | return NULL; |
33615367 SR |
1389 | |
1390 | phydev = of_phy_find_device(phy_dn); | |
1391 | if (!phydev) { | |
6207a78c FF |
1392 | of_node_put(phy_dn); |
1393 | return ERR_PTR(-EPROBE_DEFER); | |
33615367 SR |
1394 | } |
1395 | ||
9919a363 | 1396 | of_node_put(phy_dn); |
6207a78c FF |
1397 | return phydev; |
1398 | } | |
1399 | ||
8ae67496 FF |
1400 | static void dsa_port_phylink_validate(struct phylink_config *config, |
1401 | unsigned long *supported, | |
1402 | struct phylink_link_state *state) | |
77373d49 IC |
1403 | { |
1404 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1405 | struct dsa_switch *ds = dp->ds; | |
1406 | ||
5938bce4 RKO |
1407 | if (!ds->ops->phylink_validate) { |
1408 | if (config->mac_capabilities) | |
1409 | phylink_generic_validate(config, supported, state); | |
77373d49 | 1410 | return; |
5938bce4 | 1411 | } |
77373d49 IC |
1412 | |
1413 | ds->ops->phylink_validate(ds, dp->index, supported, state); | |
1414 | } | |
77373d49 | 1415 | |
8ae67496 FF |
1416 | static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config, |
1417 | struct phylink_link_state *state) | |
77373d49 IC |
1418 | { |
1419 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1420 | struct dsa_switch *ds = dp->ds; | |
87615c96 | 1421 | int err; |
77373d49 | 1422 | |
d46b7e4f RK |
1423 | /* Only called for inband modes */ |
1424 | if (!ds->ops->phylink_mac_link_state) { | |
1425 | state->link = 0; | |
1426 | return; | |
1427 | } | |
77373d49 | 1428 | |
87615c96 RK |
1429 | err = ds->ops->phylink_mac_link_state(ds, dp->index, state); |
1430 | if (err < 0) { | |
1431 | dev_err(ds->dev, "p%d: phylink_mac_link_state() failed: %d\n", | |
1432 | dp->index, err); | |
d46b7e4f | 1433 | state->link = 0; |
87615c96 | 1434 | } |
77373d49 | 1435 | } |
77373d49 | 1436 | |
bde01822 RKO |
1437 | static struct phylink_pcs * |
1438 | dsa_port_phylink_mac_select_pcs(struct phylink_config *config, | |
1439 | phy_interface_t interface) | |
1440 | { | |
1441 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
10544570 | 1442 | struct phylink_pcs *pcs = ERR_PTR(-EOPNOTSUPP); |
bde01822 | 1443 | struct dsa_switch *ds = dp->ds; |
bde01822 RKO |
1444 | |
1445 | if (ds->ops->phylink_mac_select_pcs) | |
1446 | pcs = ds->ops->phylink_mac_select_pcs(ds, dp->index, interface); | |
1447 | ||
1448 | return pcs; | |
1449 | } | |
1450 | ||
8ae67496 FF |
1451 | static void dsa_port_phylink_mac_config(struct phylink_config *config, |
1452 | unsigned int mode, | |
1453 | const struct phylink_link_state *state) | |
77373d49 IC |
1454 | { |
1455 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1456 | struct dsa_switch *ds = dp->ds; | |
1457 | ||
1458 | if (!ds->ops->phylink_mac_config) | |
1459 | return; | |
1460 | ||
1461 | ds->ops->phylink_mac_config(ds, dp->index, mode, state); | |
1462 | } | |
77373d49 | 1463 | |
8ae67496 | 1464 | static void dsa_port_phylink_mac_an_restart(struct phylink_config *config) |
77373d49 IC |
1465 | { |
1466 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
1467 | struct dsa_switch *ds = dp->ds; | |
1468 | ||
1469 | if (!ds->ops->phylink_mac_an_restart) | |
1470 | return; | |
1471 | ||
1472 | ds->ops->phylink_mac_an_restart(ds, dp->index); | |
1473 | } | |
77373d49 | 1474 | |
8ae67496 FF |
1475 | static void dsa_port_phylink_mac_link_down(struct phylink_config *config, |
1476 | unsigned int mode, | |
1477 | phy_interface_t interface) | |
77373d49 IC |
1478 | { |
1479 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
0e279218 | 1480 | struct phy_device *phydev = NULL; |
77373d49 IC |
1481 | struct dsa_switch *ds = dp->ds; |
1482 | ||
57d77986 | 1483 | if (dsa_port_is_user(dp)) |
0e279218 IC |
1484 | phydev = dp->slave->phydev; |
1485 | ||
77373d49 | 1486 | if (!ds->ops->phylink_mac_link_down) { |
0e279218 IC |
1487 | if (ds->ops->adjust_link && phydev) |
1488 | ds->ops->adjust_link(ds, dp->index, phydev); | |
77373d49 IC |
1489 | return; |
1490 | } | |
1491 | ||
1492 | ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface); | |
1493 | } | |
77373d49 | 1494 | |
8ae67496 | 1495 | static void dsa_port_phylink_mac_link_up(struct phylink_config *config, |
91a208f2 | 1496 | struct phy_device *phydev, |
8ae67496 FF |
1497 | unsigned int mode, |
1498 | phy_interface_t interface, | |
91a208f2 RK |
1499 | int speed, int duplex, |
1500 | bool tx_pause, bool rx_pause) | |
77373d49 IC |
1501 | { |
1502 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
77373d49 IC |
1503 | struct dsa_switch *ds = dp->ds; |
1504 | ||
1505 | if (!ds->ops->phylink_mac_link_up) { | |
0e279218 IC |
1506 | if (ds->ops->adjust_link && phydev) |
1507 | ds->ops->adjust_link(ds, dp->index, phydev); | |
77373d49 IC |
1508 | return; |
1509 | } | |
1510 | ||
5b502a7b RK |
1511 | ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev, |
1512 | speed, duplex, tx_pause, rx_pause); | |
77373d49 | 1513 | } |
77373d49 | 1514 | |
21bd64bd | 1515 | static const struct phylink_mac_ops dsa_port_phylink_mac_ops = { |
77373d49 | 1516 | .validate = dsa_port_phylink_validate, |
bde01822 | 1517 | .mac_select_pcs = dsa_port_phylink_mac_select_pcs, |
d46b7e4f | 1518 | .mac_pcs_get_state = dsa_port_phylink_mac_pcs_get_state, |
77373d49 IC |
1519 | .mac_config = dsa_port_phylink_mac_config, |
1520 | .mac_an_restart = dsa_port_phylink_mac_an_restart, | |
1521 | .mac_link_down = dsa_port_phylink_mac_link_down, | |
1522 | .mac_link_up = dsa_port_phylink_mac_link_up, | |
1523 | }; | |
1524 | ||
21bd64bd RKO |
1525 | int dsa_port_phylink_create(struct dsa_port *dp) |
1526 | { | |
1527 | struct dsa_switch *ds = dp->ds; | |
1528 | phy_interface_t mode; | |
1529 | int err; | |
1530 | ||
1531 | err = of_get_phy_mode(dp->dn, &mode); | |
1532 | if (err) | |
1533 | mode = PHY_INTERFACE_MODE_NA; | |
1534 | ||
0a9f0794 RKO |
1535 | /* Presence of phylink_mac_link_state or phylink_mac_an_restart is |
1536 | * an indicator of a legacy phylink driver. | |
1537 | */ | |
1538 | if (ds->ops->phylink_mac_link_state || | |
1539 | ds->ops->phylink_mac_an_restart) | |
1540 | dp->pl_config.legacy_pre_march2020 = true; | |
1541 | ||
072eea6c RKO |
1542 | if (ds->ops->phylink_get_caps) |
1543 | ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config); | |
21bd64bd RKO |
1544 | |
1545 | dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn), | |
1546 | mode, &dsa_port_phylink_mac_ops); | |
1547 | if (IS_ERR(dp->pl)) { | |
1548 | pr_err("error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); | |
1549 | return PTR_ERR(dp->pl); | |
1550 | } | |
1551 | ||
1552 | return 0; | |
1553 | } | |
1554 | ||
6207a78c FF |
1555 | static int dsa_port_setup_phy_of(struct dsa_port *dp, bool enable) |
1556 | { | |
1557 | struct dsa_switch *ds = dp->ds; | |
1558 | struct phy_device *phydev; | |
1559 | int port = dp->index; | |
1560 | int err = 0; | |
1561 | ||
1562 | phydev = dsa_port_get_phy_device(dp); | |
1563 | if (!phydev) | |
1564 | return 0; | |
1565 | ||
1566 | if (IS_ERR(phydev)) | |
1567 | return PTR_ERR(phydev); | |
1568 | ||
33615367 | 1569 | if (enable) { |
33615367 SR |
1570 | err = genphy_resume(phydev); |
1571 | if (err < 0) | |
1572 | goto err_put_dev; | |
1573 | ||
1574 | err = genphy_read_status(phydev); | |
1575 | if (err < 0) | |
1576 | goto err_put_dev; | |
1577 | } else { | |
1578 | err = genphy_suspend(phydev); | |
1579 | if (err < 0) | |
1580 | goto err_put_dev; | |
1581 | } | |
1582 | ||
1583 | if (ds->ops->adjust_link) | |
1584 | ds->ops->adjust_link(ds, port, phydev); | |
1585 | ||
1586 | dev_dbg(ds->dev, "enabled port's phy: %s", phydev_name(phydev)); | |
1587 | ||
1588 | err_put_dev: | |
1589 | put_device(&phydev->mdio.dev); | |
33615367 SR |
1590 | return err; |
1591 | } | |
1592 | ||
1593 | static int dsa_port_fixed_link_register_of(struct dsa_port *dp) | |
57ab1ca2 VD |
1594 | { |
1595 | struct device_node *dn = dp->dn; | |
1596 | struct dsa_switch *ds = dp->ds; | |
1597 | struct phy_device *phydev; | |
1598 | int port = dp->index; | |
0c65b2b9 | 1599 | phy_interface_t mode; |
57ab1ca2 VD |
1600 | int err; |
1601 | ||
33615367 SR |
1602 | err = of_phy_register_fixed_link(dn); |
1603 | if (err) { | |
1604 | dev_err(ds->dev, | |
1605 | "failed to register the fixed PHY of port %d\n", | |
1606 | port); | |
1607 | return err; | |
1608 | } | |
57ab1ca2 | 1609 | |
33615367 | 1610 | phydev = of_phy_find_device(dn); |
57ab1ca2 | 1611 | |
0c65b2b9 AL |
1612 | err = of_get_phy_mode(dn, &mode); |
1613 | if (err) | |
33615367 SR |
1614 | mode = PHY_INTERFACE_MODE_NA; |
1615 | phydev->interface = mode; | |
57ab1ca2 | 1616 | |
33615367 | 1617 | genphy_read_status(phydev); |
57ab1ca2 | 1618 | |
33615367 SR |
1619 | if (ds->ops->adjust_link) |
1620 | ds->ops->adjust_link(ds, port, phydev); | |
57ab1ca2 | 1621 | |
33615367 | 1622 | put_device(&phydev->mdio.dev); |
57ab1ca2 VD |
1623 | |
1624 | return 0; | |
1625 | } | |
1626 | ||
0e279218 IC |
1627 | static int dsa_port_phylink_register(struct dsa_port *dp) |
1628 | { | |
1629 | struct dsa_switch *ds = dp->ds; | |
1630 | struct device_node *port_dn = dp->dn; | |
0c65b2b9 | 1631 | int err; |
0e279218 | 1632 | |
0e279218 IC |
1633 | dp->pl_config.dev = ds->dev; |
1634 | dp->pl_config.type = PHYLINK_DEV; | |
1635 | ||
21bd64bd RKO |
1636 | err = dsa_port_phylink_create(dp); |
1637 | if (err) | |
1638 | return err; | |
0e279218 IC |
1639 | |
1640 | err = phylink_of_phy_connect(dp->pl, port_dn, 0); | |
2131fba5 | 1641 | if (err && err != -ENODEV) { |
0e279218 IC |
1642 | pr_err("could not attach to PHY: %d\n", err); |
1643 | goto err_phy_connect; | |
1644 | } | |
1645 | ||
0e279218 IC |
1646 | return 0; |
1647 | ||
1648 | err_phy_connect: | |
1649 | phylink_destroy(dp->pl); | |
1650 | return err; | |
1651 | } | |
1652 | ||
33615367 | 1653 | int dsa_port_link_register_of(struct dsa_port *dp) |
57ab1ca2 | 1654 | { |
0e279218 | 1655 | struct dsa_switch *ds = dp->ds; |
a20f9970 | 1656 | struct device_node *phy_np; |
3be98b2d | 1657 | int port = dp->index; |
0e279218 | 1658 | |
a20f9970 AL |
1659 | if (!ds->ops->adjust_link) { |
1660 | phy_np = of_parse_phandle(dp->dn, "phy-handle", 0); | |
3be98b2d AL |
1661 | if (of_phy_is_fixed_link(dp->dn) || phy_np) { |
1662 | if (ds->ops->phylink_mac_link_down) | |
1663 | ds->ops->phylink_mac_link_down(ds, port, | |
1664 | MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); | |
fc06b286 | 1665 | of_node_put(phy_np); |
a20f9970 | 1666 | return dsa_port_phylink_register(dp); |
3be98b2d | 1667 | } |
fc06b286 | 1668 | of_node_put(phy_np); |
a20f9970 AL |
1669 | return 0; |
1670 | } | |
0e279218 IC |
1671 | |
1672 | dev_warn(ds->dev, | |
1673 | "Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n"); | |
1674 | ||
33615367 SR |
1675 | if (of_phy_is_fixed_link(dp->dn)) |
1676 | return dsa_port_fixed_link_register_of(dp); | |
1677 | else | |
1678 | return dsa_port_setup_phy_of(dp, true); | |
1679 | } | |
57ab1ca2 | 1680 | |
33615367 SR |
1681 | void dsa_port_link_unregister_of(struct dsa_port *dp) |
1682 | { | |
0e279218 IC |
1683 | struct dsa_switch *ds = dp->ds; |
1684 | ||
a20f9970 | 1685 | if (!ds->ops->adjust_link && dp->pl) { |
0e279218 IC |
1686 | rtnl_lock(); |
1687 | phylink_disconnect_phy(dp->pl); | |
1688 | rtnl_unlock(); | |
1689 | phylink_destroy(dp->pl); | |
a20f9970 | 1690 | dp->pl = NULL; |
0e279218 IC |
1691 | return; |
1692 | } | |
1693 | ||
33615367 SR |
1694 | if (of_phy_is_fixed_link(dp->dn)) |
1695 | of_phy_deregister_fixed_link(dp->dn); | |
1696 | else | |
1697 | dsa_port_setup_phy_of(dp, false); | |
57ab1ca2 | 1698 | } |
cf963573 | 1699 | |
18596f50 GM |
1700 | int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr) |
1701 | { | |
a68dc7b9 | 1702 | struct dsa_switch *ds = dp->ds; |
18596f50 GM |
1703 | int err; |
1704 | ||
a68dc7b9 VO |
1705 | if (!ds->ops->port_hsr_join) |
1706 | return -EOPNOTSUPP; | |
1707 | ||
18596f50 GM |
1708 | dp->hsr_dev = hsr; |
1709 | ||
a68dc7b9 | 1710 | err = ds->ops->port_hsr_join(ds, dp->index, hsr); |
18596f50 GM |
1711 | if (err) |
1712 | dp->hsr_dev = NULL; | |
1713 | ||
1714 | return err; | |
1715 | } | |
1716 | ||
1717 | void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr) | |
1718 | { | |
a68dc7b9 | 1719 | struct dsa_switch *ds = dp->ds; |
18596f50 GM |
1720 | int err; |
1721 | ||
1722 | dp->hsr_dev = NULL; | |
1723 | ||
a68dc7b9 VO |
1724 | if (ds->ops->port_hsr_leave) { |
1725 | err = ds->ops->port_hsr_leave(ds, dp->index, hsr); | |
1726 | if (err) | |
1727 | dev_err(dp->ds->dev, | |
1728 | "port %d failed to leave HSR %s: %pe\n", | |
1729 | dp->index, hsr->name, ERR_PTR(err)); | |
1730 | } | |
18596f50 | 1731 | } |
c64b9c05 | 1732 | |
724395f4 | 1733 | int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid, bool broadcast) |
c64b9c05 VO |
1734 | { |
1735 | struct dsa_notifier_tag_8021q_vlan_info info = { | |
726816a1 | 1736 | .dp = dp, |
c64b9c05 VO |
1737 | .vid = vid, |
1738 | }; | |
1739 | ||
724395f4 VO |
1740 | if (broadcast) |
1741 | return dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info); | |
1742 | ||
1743 | return dsa_port_notify(dp, DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info); | |
c64b9c05 VO |
1744 | } |
1745 | ||
724395f4 | 1746 | void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid, bool broadcast) |
c64b9c05 VO |
1747 | { |
1748 | struct dsa_notifier_tag_8021q_vlan_info info = { | |
726816a1 | 1749 | .dp = dp, |
c64b9c05 VO |
1750 | .vid = vid, |
1751 | }; | |
1752 | int err; | |
1753 | ||
724395f4 VO |
1754 | if (broadcast) |
1755 | err = dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info); | |
1756 | else | |
1757 | err = dsa_port_notify(dp, DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info); | |
c64b9c05 | 1758 | if (err) |
ab97462b VO |
1759 | dev_err(dp->ds->dev, |
1760 | "port %d failed to notify tag_8021q VLAN %d deletion: %pe\n", | |
1761 | dp->index, vid, ERR_PTR(err)); | |
c64b9c05 | 1762 | } |