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> | |
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 | ||
bae33f2b | 33 | int dsa_port_set_state(struct dsa_port *dp, u8 state) |
a40c175b VD |
34 | { |
35 | struct dsa_switch *ds = dp->ds; | |
36 | int port = dp->index; | |
37 | ||
bae33f2b VO |
38 | if (!ds->ops->port_stp_state_set) |
39 | return -EOPNOTSUPP; | |
a40c175b | 40 | |
bae33f2b | 41 | ds->ops->port_stp_state_set(ds, port, state); |
a40c175b VD |
42 | |
43 | if (ds->ops->port_fast_age) { | |
44 | /* Fast age FDB entries or flush appropriate forwarding database | |
45 | * for the given port, if we are moving it from Learning or | |
46 | * Forwarding state, to Disabled or Blocking or Listening state. | |
47 | */ | |
48 | ||
49 | if ((dp->stp_state == BR_STATE_LEARNING || | |
50 | dp->stp_state == BR_STATE_FORWARDING) && | |
51 | (state == BR_STATE_DISABLED || | |
52 | state == BR_STATE_BLOCKING || | |
53 | state == BR_STATE_LISTENING)) | |
54 | ds->ops->port_fast_age(ds, port); | |
55 | } | |
56 | ||
57 | dp->stp_state = state; | |
58 | ||
59 | return 0; | |
60 | } | |
61 | ||
fb8a6a2b | 62 | static void dsa_port_set_state_now(struct dsa_port *dp, u8 state) |
a40c175b VD |
63 | { |
64 | int err; | |
65 | ||
bae33f2b | 66 | err = dsa_port_set_state(dp, state); |
a40c175b VD |
67 | if (err) |
68 | pr_err("DSA: failed to set STP state %u (%d)\n", state, err); | |
69 | } | |
cfbed329 | 70 | |
8640f8dc | 71 | int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy) |
fb8a6a2b | 72 | { |
fb8a6a2b VD |
73 | struct dsa_switch *ds = dp->ds; |
74 | int port = dp->index; | |
75 | int err; | |
76 | ||
77 | if (ds->ops->port_enable) { | |
78 | err = ds->ops->port_enable(ds, port, phy); | |
79 | if (err) | |
80 | return err; | |
81 | } | |
82 | ||
9c2054a5 RK |
83 | if (!dp->bridge_dev) |
84 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING); | |
fb8a6a2b | 85 | |
8640f8dc RK |
86 | if (dp->pl) |
87 | phylink_start(dp->pl); | |
88 | ||
fb8a6a2b VD |
89 | return 0; |
90 | } | |
91 | ||
8640f8dc RK |
92 | int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy) |
93 | { | |
94 | int err; | |
95 | ||
96 | rtnl_lock(); | |
97 | err = dsa_port_enable_rt(dp, phy); | |
98 | rtnl_unlock(); | |
99 | ||
100 | return err; | |
101 | } | |
102 | ||
103 | void dsa_port_disable_rt(struct dsa_port *dp) | |
fb8a6a2b VD |
104 | { |
105 | struct dsa_switch *ds = dp->ds; | |
106 | int port = dp->index; | |
107 | ||
8640f8dc RK |
108 | if (dp->pl) |
109 | phylink_stop(dp->pl); | |
110 | ||
9c2054a5 RK |
111 | if (!dp->bridge_dev) |
112 | dsa_port_set_state_now(dp, BR_STATE_DISABLED); | |
fb8a6a2b VD |
113 | |
114 | if (ds->ops->port_disable) | |
75104db0 | 115 | ds->ops->port_disable(ds, port); |
fb8a6a2b VD |
116 | } |
117 | ||
8640f8dc RK |
118 | void dsa_port_disable(struct dsa_port *dp) |
119 | { | |
120 | rtnl_lock(); | |
121 | dsa_port_disable_rt(dp); | |
122 | rtnl_unlock(); | |
123 | } | |
124 | ||
5961d6a1 VO |
125 | static int dsa_port_inherit_brport_flags(struct dsa_port *dp, |
126 | struct netlink_ext_ack *extack) | |
5e38c158 | 127 | { |
5961d6a1 VO |
128 | const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | |
129 | BR_BCAST_FLOOD; | |
130 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); | |
131 | int flag, err; | |
5e38c158 | 132 | |
5961d6a1 VO |
133 | for_each_set_bit(flag, &mask, 32) { |
134 | struct switchdev_brport_flags flags = {0}; | |
5e38c158 | 135 | |
5961d6a1 | 136 | flags.mask = BIT(flag); |
e18f4c18 | 137 | |
5961d6a1 VO |
138 | if (br_port_flag_is_set(brport_dev, BIT(flag))) |
139 | flags.val = BIT(flag); | |
5e38c158 | 140 | |
5961d6a1 VO |
141 | err = dsa_port_bridge_flags(dp, flags, extack); |
142 | if (err && err != -EOPNOTSUPP) | |
143 | return err; | |
144 | } | |
145 | ||
146 | return 0; | |
147 | } | |
148 | ||
149 | static void dsa_port_clear_brport_flags(struct dsa_port *dp) | |
150 | { | |
151 | const unsigned long val = BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD; | |
152 | const unsigned long mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | | |
153 | BR_BCAST_FLOOD; | |
154 | int flag, err; | |
155 | ||
156 | for_each_set_bit(flag, &mask, 32) { | |
157 | struct switchdev_brport_flags flags = {0}; | |
158 | ||
159 | flags.mask = BIT(flag); | |
160 | flags.val = val & BIT(flag); | |
161 | ||
162 | err = dsa_port_bridge_flags(dp, flags, NULL); | |
163 | if (err && err != -EOPNOTSUPP) | |
164 | dev_err(dp->ds->dev, | |
165 | "failed to clear bridge port flag %lu: %pe\n", | |
166 | flags.val, ERR_PTR(err)); | |
5e38c158 VO |
167 | } |
168 | } | |
169 | ||
4e51bf44 VO |
170 | static int dsa_port_switchdev_sync_attrs(struct dsa_port *dp, |
171 | struct netlink_ext_ack *extack) | |
5961d6a1 | 172 | { |
010e269f VO |
173 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
174 | struct net_device *br = dp->bridge_dev; | |
5961d6a1 VO |
175 | int err; |
176 | ||
177 | err = dsa_port_inherit_brport_flags(dp, extack); | |
178 | if (err) | |
179 | return err; | |
180 | ||
010e269f VO |
181 | err = dsa_port_set_state(dp, br_port_get_stp_state(brport_dev)); |
182 | if (err && err != -EOPNOTSUPP) | |
183 | return err; | |
184 | ||
185 | err = dsa_port_vlan_filtering(dp, br_vlan_enabled(br), extack); | |
186 | if (err && err != -EOPNOTSUPP) | |
187 | return err; | |
188 | ||
189 | err = dsa_port_mrouter(dp->cpu_dp, br_multicast_router(br), extack); | |
190 | if (err && err != -EOPNOTSUPP) | |
191 | return err; | |
192 | ||
193 | err = dsa_port_ageing_time(dp, br_get_ageing_time(br)); | |
194 | if (err && err != -EOPNOTSUPP) | |
195 | return err; | |
196 | ||
74918945 VO |
197 | return 0; |
198 | } | |
199 | ||
200 | static void dsa_port_switchdev_unsync_attrs(struct dsa_port *dp) | |
5961d6a1 VO |
201 | { |
202 | /* Configure the port for standalone mode (no address learning, | |
203 | * flood everything). | |
204 | * The bridge only emits SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS events | |
205 | * when the user requests it through netlink or sysfs, but not | |
206 | * automatically at port join or leave, so we need to handle resetting | |
207 | * the brport flags ourselves. But we even prefer it that way, because | |
208 | * otherwise, some setups might never get the notification they need, | |
209 | * for example, when a port leaves a LAG that offloads the bridge, | |
210 | * it becomes standalone, but as far as the bridge is concerned, no | |
211 | * port ever left. | |
212 | */ | |
213 | dsa_port_clear_brport_flags(dp); | |
214 | ||
215 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
216 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
217 | */ | |
218 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING); | |
010e269f VO |
219 | |
220 | /* VLAN filtering is handled by dsa_switch_bridge_leave */ | |
221 | ||
222 | /* Some drivers treat the notification for having a local multicast | |
223 | * router by allowing multicast to be flooded to the CPU, so we should | |
224 | * allow this in standalone mode too. | |
225 | */ | |
226 | dsa_port_mrouter(dp->cpu_dp, true, NULL); | |
227 | ||
228 | /* Ageing time may be global to the switch chip, so don't change it | |
229 | * here because we have no good reason (or value) to change it to. | |
230 | */ | |
5961d6a1 VO |
231 | } |
232 | ||
2afc526a VO |
233 | int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br, |
234 | struct netlink_ext_ack *extack) | |
cfbed329 VD |
235 | { |
236 | struct dsa_notifier_bridge_info info = { | |
f66a6a69 | 237 | .tree_index = dp->ds->dst->index, |
cfbed329 VD |
238 | .sw_index = dp->ds->index, |
239 | .port = dp->index, | |
240 | .br = br, | |
241 | }; | |
2f5dc00f VO |
242 | struct net_device *dev = dp->slave; |
243 | struct net_device *brport_dev; | |
cfbed329 VD |
244 | int err; |
245 | ||
c1388063 RK |
246 | /* Here the interface is already bridged. Reflect the current |
247 | * configuration so that drivers can program their chips accordingly. | |
cfbed329 VD |
248 | */ |
249 | dp->bridge_dev = br; | |
250 | ||
2f5dc00f VO |
251 | brport_dev = dsa_port_to_bridge_port(dp); |
252 | ||
f66a6a69 | 253 | err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_JOIN, &info); |
5961d6a1 VO |
254 | if (err) |
255 | goto out_rollback; | |
cfbed329 | 256 | |
4e51bf44 VO |
257 | err = switchdev_bridge_port_offload(brport_dev, dev, dp, |
258 | &dsa_slave_switchdev_notifier, | |
259 | &dsa_slave_switchdev_blocking_notifier, | |
47211192 | 260 | false, extack); |
5961d6a1 VO |
261 | if (err) |
262 | goto out_rollback_unbridge; | |
263 | ||
4e51bf44 | 264 | err = dsa_port_switchdev_sync_attrs(dp, extack); |
2f5dc00f VO |
265 | if (err) |
266 | goto out_rollback_unoffload; | |
267 | ||
5961d6a1 | 268 | return 0; |
cfbed329 | 269 | |
2f5dc00f | 270 | out_rollback_unoffload: |
4e51bf44 VO |
271 | switchdev_bridge_port_unoffload(brport_dev, dp, |
272 | &dsa_slave_switchdev_notifier, | |
273 | &dsa_slave_switchdev_blocking_notifier); | |
5961d6a1 VO |
274 | out_rollback_unbridge: |
275 | dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); | |
276 | out_rollback: | |
277 | dp->bridge_dev = NULL; | |
cfbed329 VD |
278 | return err; |
279 | } | |
280 | ||
4e51bf44 | 281 | void dsa_port_pre_bridge_leave(struct dsa_port *dp, struct net_device *br) |
74918945 | 282 | { |
2f5dc00f VO |
283 | struct net_device *brport_dev = dsa_port_to_bridge_port(dp); |
284 | ||
4e51bf44 VO |
285 | switchdev_bridge_port_unoffload(brport_dev, dp, |
286 | &dsa_slave_switchdev_notifier, | |
287 | &dsa_slave_switchdev_blocking_notifier); | |
74918945 VO |
288 | } |
289 | ||
cfbed329 VD |
290 | void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) |
291 | { | |
292 | struct dsa_notifier_bridge_info info = { | |
f66a6a69 | 293 | .tree_index = dp->ds->dst->index, |
cfbed329 VD |
294 | .sw_index = dp->ds->index, |
295 | .port = dp->index, | |
296 | .br = br, | |
297 | }; | |
298 | int err; | |
299 | ||
300 | /* Here the port is already unbridged. Reflect the current configuration | |
301 | * so that drivers can program their chips accordingly. | |
302 | */ | |
303 | dp->bridge_dev = NULL; | |
304 | ||
f66a6a69 | 305 | err = dsa_broadcast(DSA_NOTIFIER_BRIDGE_LEAVE, &info); |
cfbed329 VD |
306 | if (err) |
307 | pr_err("DSA: failed to notify DSA_NOTIFIER_BRIDGE_LEAVE\n"); | |
308 | ||
74918945 | 309 | dsa_port_switchdev_unsync_attrs(dp); |
cfbed329 | 310 | } |
4d61d304 | 311 | |
058102a6 TW |
312 | int dsa_port_lag_change(struct dsa_port *dp, |
313 | struct netdev_lag_lower_state_info *linfo) | |
314 | { | |
315 | struct dsa_notifier_lag_info info = { | |
316 | .sw_index = dp->ds->index, | |
317 | .port = dp->index, | |
318 | }; | |
319 | bool tx_enabled; | |
320 | ||
321 | if (!dp->lag_dev) | |
322 | return 0; | |
323 | ||
324 | /* On statically configured aggregates (e.g. loadbalance | |
325 | * without LACP) ports will always be tx_enabled, even if the | |
326 | * link is down. Thus we require both link_up and tx_enabled | |
327 | * in order to include it in the tx set. | |
328 | */ | |
329 | tx_enabled = linfo->link_up && linfo->tx_enabled; | |
330 | ||
331 | if (tx_enabled == dp->lag_tx_enabled) | |
332 | return 0; | |
333 | ||
334 | dp->lag_tx_enabled = tx_enabled; | |
335 | ||
336 | return dsa_port_notify(dp, DSA_NOTIFIER_LAG_CHANGE, &info); | |
337 | } | |
338 | ||
339 | int dsa_port_lag_join(struct dsa_port *dp, struct net_device *lag, | |
2afc526a VO |
340 | struct netdev_lag_upper_info *uinfo, |
341 | struct netlink_ext_ack *extack) | |
058102a6 TW |
342 | { |
343 | struct dsa_notifier_lag_info info = { | |
344 | .sw_index = dp->ds->index, | |
345 | .port = dp->index, | |
346 | .lag = lag, | |
347 | .info = uinfo, | |
348 | }; | |
185c9a76 | 349 | struct net_device *bridge_dev; |
058102a6 TW |
350 | int err; |
351 | ||
352 | dsa_lag_map(dp->ds->dst, lag); | |
353 | dp->lag_dev = lag; | |
354 | ||
355 | err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_JOIN, &info); | |
185c9a76 VO |
356 | if (err) |
357 | goto err_lag_join; | |
058102a6 | 358 | |
185c9a76 VO |
359 | bridge_dev = netdev_master_upper_dev_get(lag); |
360 | if (!bridge_dev || !netif_is_bridge_master(bridge_dev)) | |
361 | return 0; | |
362 | ||
2afc526a | 363 | err = dsa_port_bridge_join(dp, bridge_dev, extack); |
185c9a76 VO |
364 | if (err) |
365 | goto err_bridge_join; | |
366 | ||
367 | return 0; | |
368 | ||
369 | err_bridge_join: | |
370 | dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info); | |
371 | err_lag_join: | |
372 | dp->lag_dev = NULL; | |
373 | dsa_lag_unmap(dp->ds->dst, lag); | |
058102a6 TW |
374 | return err; |
375 | } | |
376 | ||
4e51bf44 | 377 | void dsa_port_pre_lag_leave(struct dsa_port *dp, struct net_device *lag) |
74918945 VO |
378 | { |
379 | if (dp->bridge_dev) | |
4e51bf44 | 380 | dsa_port_pre_bridge_leave(dp, dp->bridge_dev); |
74918945 VO |
381 | } |
382 | ||
058102a6 TW |
383 | void dsa_port_lag_leave(struct dsa_port *dp, struct net_device *lag) |
384 | { | |
385 | struct dsa_notifier_lag_info info = { | |
386 | .sw_index = dp->ds->index, | |
387 | .port = dp->index, | |
388 | .lag = lag, | |
389 | }; | |
390 | int err; | |
391 | ||
392 | if (!dp->lag_dev) | |
393 | return; | |
394 | ||
395 | /* Port might have been part of a LAG that in turn was | |
396 | * attached to a bridge. | |
397 | */ | |
398 | if (dp->bridge_dev) | |
399 | dsa_port_bridge_leave(dp, dp->bridge_dev); | |
400 | ||
401 | dp->lag_tx_enabled = false; | |
402 | dp->lag_dev = NULL; | |
403 | ||
404 | err = dsa_port_notify(dp, DSA_NOTIFIER_LAG_LEAVE, &info); | |
405 | if (err) | |
406 | pr_err("DSA: failed to notify DSA_NOTIFIER_LAG_LEAVE: %d\n", | |
407 | err); | |
408 | ||
409 | dsa_lag_unmap(dp->ds->dst, lag); | |
410 | } | |
411 | ||
adb256eb | 412 | /* Must be called under rcu_read_lock() */ |
8f5d16f6 | 413 | static bool dsa_port_can_apply_vlan_filtering(struct dsa_port *dp, |
89153ed6 VO |
414 | bool vlan_filtering, |
415 | struct netlink_ext_ack *extack) | |
8f5d16f6 VO |
416 | { |
417 | struct dsa_switch *ds = dp->ds; | |
adb256eb VO |
418 | int err, i; |
419 | ||
420 | /* VLAN awareness was off, so the question is "can we turn it on". | |
421 | * We may have had 8021q uppers, those need to go. Make sure we don't | |
422 | * enter an inconsistent state: deny changing the VLAN awareness state | |
423 | * as long as we have 8021q uppers. | |
424 | */ | |
425 | if (vlan_filtering && dsa_is_user_port(ds, dp->index)) { | |
426 | struct net_device *upper_dev, *slave = dp->slave; | |
427 | struct net_device *br = dp->bridge_dev; | |
428 | struct list_head *iter; | |
429 | ||
430 | netdev_for_each_upper_dev_rcu(slave, upper_dev, iter) { | |
431 | struct bridge_vlan_info br_info; | |
432 | u16 vid; | |
433 | ||
434 | if (!is_vlan_dev(upper_dev)) | |
435 | continue; | |
436 | ||
437 | vid = vlan_dev_vlan_id(upper_dev); | |
438 | ||
439 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
440 | * device, respectively the VID is not found, returning | |
441 | * 0 means success, which is a failure for us here. | |
442 | */ | |
443 | err = br_vlan_get_info(br, vid, &br_info); | |
444 | if (err == 0) { | |
89153ed6 VO |
445 | NL_SET_ERR_MSG_MOD(extack, |
446 | "Must first remove VLAN uppers having VIDs also present in bridge"); | |
adb256eb VO |
447 | return false; |
448 | } | |
449 | } | |
450 | } | |
8f5d16f6 VO |
451 | |
452 | if (!ds->vlan_filtering_is_global) | |
453 | return true; | |
454 | ||
455 | /* For cases where enabling/disabling VLAN awareness is global to the | |
456 | * switch, we need to handle the case where multiple bridges span | |
457 | * different ports of the same switch device and one of them has a | |
458 | * different setting than what is being requested. | |
459 | */ | |
460 | for (i = 0; i < ds->num_ports; i++) { | |
461 | struct net_device *other_bridge; | |
462 | ||
463 | other_bridge = dsa_to_port(ds, i)->bridge_dev; | |
464 | if (!other_bridge) | |
465 | continue; | |
466 | /* If it's the same bridge, it also has same | |
467 | * vlan_filtering setting => no need to check | |
468 | */ | |
469 | if (other_bridge == dp->bridge_dev) | |
470 | continue; | |
471 | if (br_vlan_enabled(other_bridge) != vlan_filtering) { | |
89153ed6 VO |
472 | NL_SET_ERR_MSG_MOD(extack, |
473 | "VLAN filtering is a global setting"); | |
8f5d16f6 VO |
474 | return false; |
475 | } | |
476 | } | |
477 | return true; | |
478 | } | |
479 | ||
89153ed6 VO |
480 | int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, |
481 | struct netlink_ext_ack *extack) | |
4d61d304 VD |
482 | { |
483 | struct dsa_switch *ds = dp->ds; | |
bae33f2b | 484 | bool apply; |
33162e9a | 485 | int err; |
4d61d304 | 486 | |
bae33f2b VO |
487 | if (!ds->ops->port_vlan_filtering) |
488 | return -EOPNOTSUPP; | |
adb256eb | 489 | |
bae33f2b VO |
490 | /* We are called from dsa_slave_switchdev_blocking_event(), |
491 | * which is not under rcu_read_lock(), unlike | |
492 | * dsa_slave_switchdev_event(). | |
493 | */ | |
494 | rcu_read_lock(); | |
89153ed6 | 495 | apply = dsa_port_can_apply_vlan_filtering(dp, vlan_filtering, extack); |
bae33f2b VO |
496 | rcu_read_unlock(); |
497 | if (!apply) | |
498 | return -EINVAL; | |
8f5d16f6 | 499 | |
ec9121e7 VO |
500 | if (dsa_port_is_vlan_filtering(dp) == vlan_filtering) |
501 | return 0; | |
502 | ||
89153ed6 VO |
503 | err = ds->ops->port_vlan_filtering(ds, dp->index, vlan_filtering, |
504 | extack); | |
8f5d16f6 VO |
505 | if (err) |
506 | return err; | |
507 | ||
bae33f2b VO |
508 | if (ds->vlan_filtering_is_global) |
509 | ds->vlan_filtering = vlan_filtering; | |
510 | else | |
511 | dp->vlan_filtering = vlan_filtering; | |
2e554a7a | 512 | |
4d61d304 VD |
513 | return 0; |
514 | } | |
d87bd94e | 515 | |
54a0ed0d RK |
516 | /* This enforces legacy behavior for switch drivers which assume they can't |
517 | * receive VLAN configuration when enslaved to a bridge with vlan_filtering=0 | |
518 | */ | |
519 | bool dsa_port_skip_vlan_configuration(struct dsa_port *dp) | |
520 | { | |
521 | struct dsa_switch *ds = dp->ds; | |
522 | ||
523 | if (!dp->bridge_dev) | |
524 | return false; | |
525 | ||
526 | return (!ds->configure_vlan_while_not_filtering && | |
527 | !br_vlan_enabled(dp->bridge_dev)); | |
528 | } | |
529 | ||
bae33f2b | 530 | int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock) |
d87bd94e VD |
531 | { |
532 | unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock); | |
533 | unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies); | |
bae33f2b | 534 | struct dsa_notifier_ageing_time_info info; |
bae33f2b VO |
535 | int err; |
536 | ||
537 | info.ageing_time = ageing_time; | |
d87bd94e | 538 | |
bae33f2b VO |
539 | err = dsa_port_notify(dp, DSA_NOTIFIER_AGEING_TIME, &info); |
540 | if (err) | |
541 | return err; | |
d87bd94e | 542 | |
d87bd94e | 543 | dp->ageing_time = ageing_time; |
d87bd94e | 544 | |
77b61365 | 545 | return 0; |
d87bd94e | 546 | } |
d1cffff0 | 547 | |
e18f4c18 | 548 | int dsa_port_pre_bridge_flags(const struct dsa_port *dp, |
a8b659e7 VO |
549 | struct switchdev_brport_flags flags, |
550 | struct netlink_ext_ack *extack) | |
ea87005a FF |
551 | { |
552 | struct dsa_switch *ds = dp->ds; | |
553 | ||
a8b659e7 | 554 | if (!ds->ops->port_pre_bridge_flags) |
ea87005a FF |
555 | return -EINVAL; |
556 | ||
a8b659e7 | 557 | return ds->ops->port_pre_bridge_flags(ds, dp->index, flags, extack); |
ea87005a FF |
558 | } |
559 | ||
e18f4c18 | 560 | int dsa_port_bridge_flags(const struct dsa_port *dp, |
a8b659e7 VO |
561 | struct switchdev_brport_flags flags, |
562 | struct netlink_ext_ack *extack) | |
57652796 RK |
563 | { |
564 | struct dsa_switch *ds = dp->ds; | |
57652796 | 565 | |
a8b659e7 | 566 | if (!ds->ops->port_bridge_flags) |
70a7c484 | 567 | return -EOPNOTSUPP; |
57652796 | 568 | |
a8b659e7 | 569 | return ds->ops->port_bridge_flags(ds, dp->index, flags, extack); |
57652796 RK |
570 | } |
571 | ||
a8b659e7 VO |
572 | int dsa_port_mrouter(struct dsa_port *dp, bool mrouter, |
573 | struct netlink_ext_ack *extack) | |
08cc83cc VD |
574 | { |
575 | struct dsa_switch *ds = dp->ds; | |
08cc83cc | 576 | |
a8b659e7 | 577 | if (!ds->ops->port_set_mrouter) |
bae33f2b | 578 | return -EOPNOTSUPP; |
08cc83cc | 579 | |
a8b659e7 | 580 | return ds->ops->port_set_mrouter(ds, dp->index, mrouter, extack); |
08cc83cc VD |
581 | } |
582 | ||
bfcb8132 | 583 | int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu, |
88faba20 | 584 | bool targeted_match) |
bfcb8132 VO |
585 | { |
586 | struct dsa_notifier_mtu_info info = { | |
587 | .sw_index = dp->ds->index, | |
88faba20 | 588 | .targeted_match = targeted_match, |
bfcb8132 VO |
589 | .port = dp->index, |
590 | .mtu = new_mtu, | |
591 | }; | |
592 | ||
593 | return dsa_port_notify(dp, DSA_NOTIFIER_MTU, &info); | |
594 | } | |
595 | ||
2acf4e6a AS |
596 | int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr, |
597 | u16 vid) | |
d1cffff0 | 598 | { |
685fb6a4 VD |
599 | struct dsa_notifier_fdb_info info = { |
600 | .sw_index = dp->ds->index, | |
601 | .port = dp->index, | |
2acf4e6a AS |
602 | .addr = addr, |
603 | .vid = vid, | |
685fb6a4 | 604 | }; |
d1cffff0 | 605 | |
685fb6a4 | 606 | return dsa_port_notify(dp, DSA_NOTIFIER_FDB_ADD, &info); |
d1cffff0 VD |
607 | } |
608 | ||
2acf4e6a AS |
609 | int dsa_port_fdb_del(struct dsa_port *dp, const unsigned char *addr, |
610 | u16 vid) | |
d1cffff0 | 611 | { |
685fb6a4 VD |
612 | struct dsa_notifier_fdb_info info = { |
613 | .sw_index = dp->ds->index, | |
614 | .port = dp->index, | |
2acf4e6a AS |
615 | .addr = addr, |
616 | .vid = vid, | |
617 | ||
685fb6a4 | 618 | }; |
d1cffff0 | 619 | |
685fb6a4 | 620 | return dsa_port_notify(dp, DSA_NOTIFIER_FDB_DEL, &info); |
d1cffff0 VD |
621 | } |
622 | ||
3dc80afc VO |
623 | int dsa_port_host_fdb_add(struct dsa_port *dp, const unsigned char *addr, |
624 | u16 vid) | |
625 | { | |
626 | struct dsa_notifier_fdb_info info = { | |
627 | .sw_index = dp->ds->index, | |
628 | .port = dp->index, | |
629 | .addr = addr, | |
630 | .vid = vid, | |
631 | }; | |
26ee7b06 VO |
632 | struct dsa_port *cpu_dp = dp->cpu_dp; |
633 | int err; | |
634 | ||
635 | err = dev_uc_add(cpu_dp->master, addr); | |
636 | if (err) | |
637 | return err; | |
3dc80afc VO |
638 | |
639 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_ADD, &info); | |
640 | } | |
641 | ||
642 | int dsa_port_host_fdb_del(struct dsa_port *dp, const unsigned char *addr, | |
643 | u16 vid) | |
644 | { | |
645 | struct dsa_notifier_fdb_info info = { | |
646 | .sw_index = dp->ds->index, | |
647 | .port = dp->index, | |
648 | .addr = addr, | |
649 | .vid = vid, | |
650 | }; | |
26ee7b06 VO |
651 | struct dsa_port *cpu_dp = dp->cpu_dp; |
652 | int err; | |
653 | ||
654 | err = dev_uc_del(cpu_dp->master, addr); | |
655 | if (err) | |
656 | return err; | |
3dc80afc VO |
657 | |
658 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_FDB_DEL, &info); | |
659 | } | |
660 | ||
de40fc5d VD |
661 | int dsa_port_fdb_dump(struct dsa_port *dp, dsa_fdb_dump_cb_t *cb, void *data) |
662 | { | |
663 | struct dsa_switch *ds = dp->ds; | |
664 | int port = dp->index; | |
665 | ||
666 | if (!ds->ops->port_fdb_dump) | |
667 | return -EOPNOTSUPP; | |
668 | ||
669 | return ds->ops->port_fdb_dump(ds, port, cb, data); | |
670 | } | |
671 | ||
bb9f6031 | 672 | int dsa_port_mdb_add(const struct dsa_port *dp, |
ffb68fc5 | 673 | const struct switchdev_obj_port_mdb *mdb) |
3a9afea3 | 674 | { |
8ae5bcdc VD |
675 | struct dsa_notifier_mdb_info info = { |
676 | .sw_index = dp->ds->index, | |
677 | .port = dp->index, | |
8ae5bcdc VD |
678 | .mdb = mdb, |
679 | }; | |
3a9afea3 | 680 | |
8ae5bcdc | 681 | return dsa_port_notify(dp, DSA_NOTIFIER_MDB_ADD, &info); |
3a9afea3 VD |
682 | } |
683 | ||
bb9f6031 | 684 | int dsa_port_mdb_del(const struct dsa_port *dp, |
3a9afea3 VD |
685 | const struct switchdev_obj_port_mdb *mdb) |
686 | { | |
8ae5bcdc VD |
687 | struct dsa_notifier_mdb_info info = { |
688 | .sw_index = dp->ds->index, | |
689 | .port = dp->index, | |
690 | .mdb = mdb, | |
691 | }; | |
3a9afea3 | 692 | |
8ae5bcdc | 693 | return dsa_port_notify(dp, DSA_NOTIFIER_MDB_DEL, &info); |
3a9afea3 VD |
694 | } |
695 | ||
b8e997c4 VO |
696 | int dsa_port_host_mdb_add(const struct dsa_port *dp, |
697 | const struct switchdev_obj_port_mdb *mdb) | |
698 | { | |
699 | struct dsa_notifier_mdb_info info = { | |
700 | .sw_index = dp->ds->index, | |
701 | .port = dp->index, | |
702 | .mdb = mdb, | |
703 | }; | |
26ee7b06 VO |
704 | struct dsa_port *cpu_dp = dp->cpu_dp; |
705 | int err; | |
706 | ||
707 | err = dev_mc_add(cpu_dp->master, mdb->addr); | |
708 | if (err) | |
709 | return err; | |
b8e997c4 VO |
710 | |
711 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_ADD, &info); | |
712 | } | |
713 | ||
714 | int dsa_port_host_mdb_del(const struct dsa_port *dp, | |
715 | const struct switchdev_obj_port_mdb *mdb) | |
716 | { | |
717 | struct dsa_notifier_mdb_info info = { | |
718 | .sw_index = dp->ds->index, | |
719 | .port = dp->index, | |
720 | .mdb = mdb, | |
721 | }; | |
26ee7b06 VO |
722 | struct dsa_port *cpu_dp = dp->cpu_dp; |
723 | int err; | |
724 | ||
725 | err = dev_mc_del(cpu_dp->master, mdb->addr); | |
726 | if (err) | |
727 | return err; | |
b8e997c4 VO |
728 | |
729 | return dsa_port_notify(dp, DSA_NOTIFIER_HOST_MDB_DEL, &info); | |
730 | } | |
731 | ||
076e7133 | 732 | int dsa_port_vlan_add(struct dsa_port *dp, |
31046a5f VO |
733 | const struct switchdev_obj_port_vlan *vlan, |
734 | struct netlink_ext_ack *extack) | |
076e7133 | 735 | { |
d0c627b8 VD |
736 | struct dsa_notifier_vlan_info info = { |
737 | .sw_index = dp->ds->index, | |
738 | .port = dp->index, | |
d0c627b8 | 739 | .vlan = vlan, |
31046a5f | 740 | .extack = extack, |
d0c627b8 | 741 | }; |
076e7133 | 742 | |
c5335d73 | 743 | return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_ADD, &info); |
076e7133 VD |
744 | } |
745 | ||
746 | int dsa_port_vlan_del(struct dsa_port *dp, | |
747 | const struct switchdev_obj_port_vlan *vlan) | |
748 | { | |
d0c627b8 VD |
749 | struct dsa_notifier_vlan_info info = { |
750 | .sw_index = dp->ds->index, | |
751 | .port = dp->index, | |
752 | .vlan = vlan, | |
753 | }; | |
076e7133 | 754 | |
c5335d73 | 755 | return dsa_port_notify(dp, DSA_NOTIFIER_VLAN_DEL, &info); |
076e7133 | 756 | } |
57ab1ca2 | 757 | |
c595c433 HV |
758 | int dsa_port_mrp_add(const struct dsa_port *dp, |
759 | const struct switchdev_obj_mrp *mrp) | |
760 | { | |
761 | struct dsa_notifier_mrp_info info = { | |
762 | .sw_index = dp->ds->index, | |
763 | .port = dp->index, | |
764 | .mrp = mrp, | |
765 | }; | |
766 | ||
767 | return dsa_port_notify(dp, DSA_NOTIFIER_MRP_ADD, &info); | |
768 | } | |
769 | ||
770 | int dsa_port_mrp_del(const struct dsa_port *dp, | |
771 | const struct switchdev_obj_mrp *mrp) | |
772 | { | |
773 | struct dsa_notifier_mrp_info info = { | |
774 | .sw_index = dp->ds->index, | |
775 | .port = dp->index, | |
776 | .mrp = mrp, | |
777 | }; | |
778 | ||
779 | return dsa_port_notify(dp, DSA_NOTIFIER_MRP_DEL, &info); | |
780 | } | |
781 | ||
782 | int dsa_port_mrp_add_ring_role(const struct dsa_port *dp, | |
783 | const struct switchdev_obj_ring_role_mrp *mrp) | |
784 | { | |
785 | struct dsa_notifier_mrp_ring_role_info info = { | |
786 | .sw_index = dp->ds->index, | |
787 | .port = dp->index, | |
788 | .mrp = mrp, | |
789 | }; | |
790 | ||
791 | return dsa_port_notify(dp, DSA_NOTIFIER_MRP_ADD_RING_ROLE, &info); | |
792 | } | |
793 | ||
794 | int dsa_port_mrp_del_ring_role(const struct dsa_port *dp, | |
795 | const struct switchdev_obj_ring_role_mrp *mrp) | |
796 | { | |
797 | struct dsa_notifier_mrp_ring_role_info info = { | |
798 | .sw_index = dp->ds->index, | |
799 | .port = dp->index, | |
800 | .mrp = mrp, | |
801 | }; | |
802 | ||
803 | return dsa_port_notify(dp, DSA_NOTIFIER_MRP_DEL_RING_ROLE, &info); | |
804 | } | |
805 | ||
53da0eba VO |
806 | void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp, |
807 | const struct dsa_device_ops *tag_ops) | |
808 | { | |
809 | cpu_dp->filter = tag_ops->filter; | |
810 | cpu_dp->rcv = tag_ops->rcv; | |
811 | cpu_dp->tag_ops = tag_ops; | |
812 | } | |
813 | ||
6207a78c | 814 | static struct phy_device *dsa_port_get_phy_device(struct dsa_port *dp) |
33615367 | 815 | { |
33615367 | 816 | struct device_node *phy_dn; |
33615367 | 817 | struct phy_device *phydev; |
33615367 | 818 | |
6207a78c | 819 | phy_dn = of_parse_phandle(dp->dn, "phy-handle", 0); |
33615367 | 820 | if (!phy_dn) |
6207a78c | 821 | return NULL; |
33615367 SR |
822 | |
823 | phydev = of_phy_find_device(phy_dn); | |
824 | if (!phydev) { | |
6207a78c FF |
825 | of_node_put(phy_dn); |
826 | return ERR_PTR(-EPROBE_DEFER); | |
33615367 SR |
827 | } |
828 | ||
9919a363 | 829 | of_node_put(phy_dn); |
6207a78c FF |
830 | return phydev; |
831 | } | |
832 | ||
8ae67496 FF |
833 | static void dsa_port_phylink_validate(struct phylink_config *config, |
834 | unsigned long *supported, | |
835 | struct phylink_link_state *state) | |
77373d49 IC |
836 | { |
837 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
838 | struct dsa_switch *ds = dp->ds; | |
839 | ||
840 | if (!ds->ops->phylink_validate) | |
841 | return; | |
842 | ||
843 | ds->ops->phylink_validate(ds, dp->index, supported, state); | |
844 | } | |
77373d49 | 845 | |
8ae67496 FF |
846 | static void dsa_port_phylink_mac_pcs_get_state(struct phylink_config *config, |
847 | struct phylink_link_state *state) | |
77373d49 IC |
848 | { |
849 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
850 | struct dsa_switch *ds = dp->ds; | |
87615c96 | 851 | int err; |
77373d49 | 852 | |
d46b7e4f RK |
853 | /* Only called for inband modes */ |
854 | if (!ds->ops->phylink_mac_link_state) { | |
855 | state->link = 0; | |
856 | return; | |
857 | } | |
77373d49 | 858 | |
87615c96 RK |
859 | err = ds->ops->phylink_mac_link_state(ds, dp->index, state); |
860 | if (err < 0) { | |
861 | dev_err(ds->dev, "p%d: phylink_mac_link_state() failed: %d\n", | |
862 | dp->index, err); | |
d46b7e4f | 863 | state->link = 0; |
87615c96 | 864 | } |
77373d49 | 865 | } |
77373d49 | 866 | |
8ae67496 FF |
867 | static void dsa_port_phylink_mac_config(struct phylink_config *config, |
868 | unsigned int mode, | |
869 | const struct phylink_link_state *state) | |
77373d49 IC |
870 | { |
871 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
872 | struct dsa_switch *ds = dp->ds; | |
873 | ||
874 | if (!ds->ops->phylink_mac_config) | |
875 | return; | |
876 | ||
877 | ds->ops->phylink_mac_config(ds, dp->index, mode, state); | |
878 | } | |
77373d49 | 879 | |
8ae67496 | 880 | static void dsa_port_phylink_mac_an_restart(struct phylink_config *config) |
77373d49 IC |
881 | { |
882 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
883 | struct dsa_switch *ds = dp->ds; | |
884 | ||
885 | if (!ds->ops->phylink_mac_an_restart) | |
886 | return; | |
887 | ||
888 | ds->ops->phylink_mac_an_restart(ds, dp->index); | |
889 | } | |
77373d49 | 890 | |
8ae67496 FF |
891 | static void dsa_port_phylink_mac_link_down(struct phylink_config *config, |
892 | unsigned int mode, | |
893 | phy_interface_t interface) | |
77373d49 IC |
894 | { |
895 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
0e279218 | 896 | struct phy_device *phydev = NULL; |
77373d49 IC |
897 | struct dsa_switch *ds = dp->ds; |
898 | ||
0e279218 IC |
899 | if (dsa_is_user_port(ds, dp->index)) |
900 | phydev = dp->slave->phydev; | |
901 | ||
77373d49 | 902 | if (!ds->ops->phylink_mac_link_down) { |
0e279218 IC |
903 | if (ds->ops->adjust_link && phydev) |
904 | ds->ops->adjust_link(ds, dp->index, phydev); | |
77373d49 IC |
905 | return; |
906 | } | |
907 | ||
908 | ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface); | |
909 | } | |
77373d49 | 910 | |
8ae67496 | 911 | static void dsa_port_phylink_mac_link_up(struct phylink_config *config, |
91a208f2 | 912 | struct phy_device *phydev, |
8ae67496 FF |
913 | unsigned int mode, |
914 | phy_interface_t interface, | |
91a208f2 RK |
915 | int speed, int duplex, |
916 | bool tx_pause, bool rx_pause) | |
77373d49 IC |
917 | { |
918 | struct dsa_port *dp = container_of(config, struct dsa_port, pl_config); | |
77373d49 IC |
919 | struct dsa_switch *ds = dp->ds; |
920 | ||
921 | if (!ds->ops->phylink_mac_link_up) { | |
0e279218 IC |
922 | if (ds->ops->adjust_link && phydev) |
923 | ds->ops->adjust_link(ds, dp->index, phydev); | |
77373d49 IC |
924 | return; |
925 | } | |
926 | ||
5b502a7b RK |
927 | ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev, |
928 | speed, duplex, tx_pause, rx_pause); | |
77373d49 | 929 | } |
77373d49 IC |
930 | |
931 | const struct phylink_mac_ops dsa_port_phylink_mac_ops = { | |
932 | .validate = dsa_port_phylink_validate, | |
d46b7e4f | 933 | .mac_pcs_get_state = dsa_port_phylink_mac_pcs_get_state, |
77373d49 IC |
934 | .mac_config = dsa_port_phylink_mac_config, |
935 | .mac_an_restart = dsa_port_phylink_mac_an_restart, | |
936 | .mac_link_down = dsa_port_phylink_mac_link_down, | |
937 | .mac_link_up = dsa_port_phylink_mac_link_up, | |
938 | }; | |
939 | ||
6207a78c FF |
940 | static int dsa_port_setup_phy_of(struct dsa_port *dp, bool enable) |
941 | { | |
942 | struct dsa_switch *ds = dp->ds; | |
943 | struct phy_device *phydev; | |
944 | int port = dp->index; | |
945 | int err = 0; | |
946 | ||
947 | phydev = dsa_port_get_phy_device(dp); | |
948 | if (!phydev) | |
949 | return 0; | |
950 | ||
951 | if (IS_ERR(phydev)) | |
952 | return PTR_ERR(phydev); | |
953 | ||
33615367 | 954 | if (enable) { |
33615367 SR |
955 | err = genphy_resume(phydev); |
956 | if (err < 0) | |
957 | goto err_put_dev; | |
958 | ||
959 | err = genphy_read_status(phydev); | |
960 | if (err < 0) | |
961 | goto err_put_dev; | |
962 | } else { | |
963 | err = genphy_suspend(phydev); | |
964 | if (err < 0) | |
965 | goto err_put_dev; | |
966 | } | |
967 | ||
968 | if (ds->ops->adjust_link) | |
969 | ds->ops->adjust_link(ds, port, phydev); | |
970 | ||
971 | dev_dbg(ds->dev, "enabled port's phy: %s", phydev_name(phydev)); | |
972 | ||
973 | err_put_dev: | |
974 | put_device(&phydev->mdio.dev); | |
33615367 SR |
975 | return err; |
976 | } | |
977 | ||
978 | static int dsa_port_fixed_link_register_of(struct dsa_port *dp) | |
57ab1ca2 VD |
979 | { |
980 | struct device_node *dn = dp->dn; | |
981 | struct dsa_switch *ds = dp->ds; | |
982 | struct phy_device *phydev; | |
983 | int port = dp->index; | |
0c65b2b9 | 984 | phy_interface_t mode; |
57ab1ca2 VD |
985 | int err; |
986 | ||
33615367 SR |
987 | err = of_phy_register_fixed_link(dn); |
988 | if (err) { | |
989 | dev_err(ds->dev, | |
990 | "failed to register the fixed PHY of port %d\n", | |
991 | port); | |
992 | return err; | |
993 | } | |
57ab1ca2 | 994 | |
33615367 | 995 | phydev = of_phy_find_device(dn); |
57ab1ca2 | 996 | |
0c65b2b9 AL |
997 | err = of_get_phy_mode(dn, &mode); |
998 | if (err) | |
33615367 SR |
999 | mode = PHY_INTERFACE_MODE_NA; |
1000 | phydev->interface = mode; | |
57ab1ca2 | 1001 | |
33615367 | 1002 | genphy_read_status(phydev); |
57ab1ca2 | 1003 | |
33615367 SR |
1004 | if (ds->ops->adjust_link) |
1005 | ds->ops->adjust_link(ds, port, phydev); | |
57ab1ca2 | 1006 | |
33615367 | 1007 | put_device(&phydev->mdio.dev); |
57ab1ca2 VD |
1008 | |
1009 | return 0; | |
1010 | } | |
1011 | ||
0e279218 IC |
1012 | static int dsa_port_phylink_register(struct dsa_port *dp) |
1013 | { | |
1014 | struct dsa_switch *ds = dp->ds; | |
1015 | struct device_node *port_dn = dp->dn; | |
0c65b2b9 AL |
1016 | phy_interface_t mode; |
1017 | int err; | |
0e279218 | 1018 | |
0c65b2b9 AL |
1019 | err = of_get_phy_mode(port_dn, &mode); |
1020 | if (err) | |
0e279218 IC |
1021 | mode = PHY_INTERFACE_MODE_NA; |
1022 | ||
1023 | dp->pl_config.dev = ds->dev; | |
1024 | dp->pl_config.type = PHYLINK_DEV; | |
787cac3f | 1025 | dp->pl_config.pcs_poll = ds->pcs_poll; |
0e279218 IC |
1026 | |
1027 | dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(port_dn), | |
1028 | mode, &dsa_port_phylink_mac_ops); | |
1029 | if (IS_ERR(dp->pl)) { | |
1030 | pr_err("error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); | |
1031 | return PTR_ERR(dp->pl); | |
1032 | } | |
1033 | ||
1034 | err = phylink_of_phy_connect(dp->pl, port_dn, 0); | |
2131fba5 | 1035 | if (err && err != -ENODEV) { |
0e279218 IC |
1036 | pr_err("could not attach to PHY: %d\n", err); |
1037 | goto err_phy_connect; | |
1038 | } | |
1039 | ||
0e279218 IC |
1040 | return 0; |
1041 | ||
1042 | err_phy_connect: | |
1043 | phylink_destroy(dp->pl); | |
1044 | return err; | |
1045 | } | |
1046 | ||
33615367 | 1047 | int dsa_port_link_register_of(struct dsa_port *dp) |
57ab1ca2 | 1048 | { |
0e279218 | 1049 | struct dsa_switch *ds = dp->ds; |
a20f9970 | 1050 | struct device_node *phy_np; |
3be98b2d | 1051 | int port = dp->index; |
0e279218 | 1052 | |
a20f9970 AL |
1053 | if (!ds->ops->adjust_link) { |
1054 | phy_np = of_parse_phandle(dp->dn, "phy-handle", 0); | |
3be98b2d AL |
1055 | if (of_phy_is_fixed_link(dp->dn) || phy_np) { |
1056 | if (ds->ops->phylink_mac_link_down) | |
1057 | ds->ops->phylink_mac_link_down(ds, port, | |
1058 | MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); | |
a20f9970 | 1059 | return dsa_port_phylink_register(dp); |
3be98b2d | 1060 | } |
a20f9970 AL |
1061 | return 0; |
1062 | } | |
0e279218 IC |
1063 | |
1064 | dev_warn(ds->dev, | |
1065 | "Using legacy PHYLIB callbacks. Please migrate to PHYLINK!\n"); | |
1066 | ||
33615367 SR |
1067 | if (of_phy_is_fixed_link(dp->dn)) |
1068 | return dsa_port_fixed_link_register_of(dp); | |
1069 | else | |
1070 | return dsa_port_setup_phy_of(dp, true); | |
1071 | } | |
57ab1ca2 | 1072 | |
33615367 SR |
1073 | void dsa_port_link_unregister_of(struct dsa_port *dp) |
1074 | { | |
0e279218 IC |
1075 | struct dsa_switch *ds = dp->ds; |
1076 | ||
a20f9970 | 1077 | if (!ds->ops->adjust_link && dp->pl) { |
0e279218 IC |
1078 | rtnl_lock(); |
1079 | phylink_disconnect_phy(dp->pl); | |
1080 | rtnl_unlock(); | |
1081 | phylink_destroy(dp->pl); | |
a20f9970 | 1082 | dp->pl = NULL; |
0e279218 IC |
1083 | return; |
1084 | } | |
1085 | ||
33615367 SR |
1086 | if (of_phy_is_fixed_link(dp->dn)) |
1087 | of_phy_deregister_fixed_link(dp->dn); | |
1088 | else | |
1089 | dsa_port_setup_phy_of(dp, false); | |
57ab1ca2 | 1090 | } |
cf963573 FF |
1091 | |
1092 | int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data) | |
1093 | { | |
1094 | struct phy_device *phydev; | |
1095 | int ret = -EOPNOTSUPP; | |
1096 | ||
1097 | if (of_phy_is_fixed_link(dp->dn)) | |
1098 | return ret; | |
1099 | ||
1100 | phydev = dsa_port_get_phy_device(dp); | |
1101 | if (IS_ERR_OR_NULL(phydev)) | |
1102 | return ret; | |
1103 | ||
1104 | ret = phy_ethtool_get_strings(phydev, data); | |
1105 | put_device(&phydev->mdio.dev); | |
1106 | ||
1107 | return ret; | |
1108 | } | |
1109 | EXPORT_SYMBOL_GPL(dsa_port_get_phy_strings); | |
1110 | ||
1111 | int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data) | |
1112 | { | |
1113 | struct phy_device *phydev; | |
1114 | int ret = -EOPNOTSUPP; | |
1115 | ||
1116 | if (of_phy_is_fixed_link(dp->dn)) | |
1117 | return ret; | |
1118 | ||
1119 | phydev = dsa_port_get_phy_device(dp); | |
1120 | if (IS_ERR_OR_NULL(phydev)) | |
1121 | return ret; | |
1122 | ||
1123 | ret = phy_ethtool_get_stats(phydev, NULL, data); | |
1124 | put_device(&phydev->mdio.dev); | |
1125 | ||
1126 | return ret; | |
1127 | } | |
1128 | EXPORT_SYMBOL_GPL(dsa_port_get_ethtool_phy_stats); | |
1129 | ||
1130 | int dsa_port_get_phy_sset_count(struct dsa_port *dp) | |
1131 | { | |
1132 | struct phy_device *phydev; | |
1133 | int ret = -EOPNOTSUPP; | |
1134 | ||
1135 | if (of_phy_is_fixed_link(dp->dn)) | |
1136 | return ret; | |
1137 | ||
1138 | phydev = dsa_port_get_phy_device(dp); | |
1139 | if (IS_ERR_OR_NULL(phydev)) | |
1140 | return ret; | |
1141 | ||
1142 | ret = phy_ethtool_get_sset_count(phydev); | |
1143 | put_device(&phydev->mdio.dev); | |
1144 | ||
1145 | return ret; | |
1146 | } | |
1147 | EXPORT_SYMBOL_GPL(dsa_port_get_phy_sset_count); | |
18596f50 GM |
1148 | |
1149 | int dsa_port_hsr_join(struct dsa_port *dp, struct net_device *hsr) | |
1150 | { | |
1151 | struct dsa_notifier_hsr_info info = { | |
1152 | .sw_index = dp->ds->index, | |
1153 | .port = dp->index, | |
1154 | .hsr = hsr, | |
1155 | }; | |
1156 | int err; | |
1157 | ||
1158 | dp->hsr_dev = hsr; | |
1159 | ||
1160 | err = dsa_port_notify(dp, DSA_NOTIFIER_HSR_JOIN, &info); | |
1161 | if (err) | |
1162 | dp->hsr_dev = NULL; | |
1163 | ||
1164 | return err; | |
1165 | } | |
1166 | ||
1167 | void dsa_port_hsr_leave(struct dsa_port *dp, struct net_device *hsr) | |
1168 | { | |
1169 | struct dsa_notifier_hsr_info info = { | |
1170 | .sw_index = dp->ds->index, | |
1171 | .port = dp->index, | |
1172 | .hsr = hsr, | |
1173 | }; | |
1174 | int err; | |
1175 | ||
1176 | dp->hsr_dev = NULL; | |
1177 | ||
1178 | err = dsa_port_notify(dp, DSA_NOTIFIER_HSR_LEAVE, &info); | |
1179 | if (err) | |
1180 | pr_err("DSA: failed to notify DSA_NOTIFIER_HSR_LEAVE\n"); | |
1181 | } | |
c64b9c05 VO |
1182 | |
1183 | int dsa_port_tag_8021q_vlan_add(struct dsa_port *dp, u16 vid) | |
1184 | { | |
1185 | struct dsa_notifier_tag_8021q_vlan_info info = { | |
1186 | .tree_index = dp->ds->dst->index, | |
1187 | .sw_index = dp->ds->index, | |
1188 | .port = dp->index, | |
1189 | .vid = vid, | |
1190 | }; | |
1191 | ||
1192 | return dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_ADD, &info); | |
1193 | } | |
1194 | ||
1195 | void dsa_port_tag_8021q_vlan_del(struct dsa_port *dp, u16 vid) | |
1196 | { | |
1197 | struct dsa_notifier_tag_8021q_vlan_info info = { | |
1198 | .tree_index = dp->ds->dst->index, | |
1199 | .sw_index = dp->ds->index, | |
1200 | .port = dp->index, | |
1201 | .vid = vid, | |
1202 | }; | |
1203 | int err; | |
1204 | ||
1205 | err = dsa_broadcast(DSA_NOTIFIER_TAG_8021Q_VLAN_DEL, &info); | |
1206 | if (err) | |
1207 | pr_err("DSA: failed to notify tag_8021q VLAN deletion: %pe\n", | |
1208 | ERR_PTR(err)); | |
1209 | } |