Commit | Line | Data |
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91da11f8 LB |
1 | /* |
2 | * net/dsa/slave.c - Slave device handling | |
e84665c9 | 3 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/list.h> | |
df02c6ff | 12 | #include <linux/etherdevice.h> |
b73adef6 | 13 | #include <linux/netdevice.h> |
91da11f8 | 14 | #include <linux/phy.h> |
a2820543 | 15 | #include <linux/phy_fixed.h> |
0d8bcdd3 FF |
16 | #include <linux/of_net.h> |
17 | #include <linux/of_mdio.h> | |
b73adef6 | 18 | #include <net/rtnetlink.h> |
98237d43 | 19 | #include <net/switchdev.h> |
b73adef6 | 20 | #include <linux/if_bridge.h> |
04ff53f9 | 21 | #include <linux/netpoll.h> |
55045ddd | 22 | #include <linux/if_vlan.h> |
91da11f8 LB |
23 | #include "dsa_priv.h" |
24 | ||
25 | /* slave mii_bus handling ***************************************************/ | |
26 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
27 | { | |
28 | struct dsa_switch *ds = bus->priv; | |
29 | ||
0d8bcdd3 | 30 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
31 | return ds->drv->phy_read(ds, addr, reg); |
32 | ||
33 | return 0xffff; | |
34 | } | |
35 | ||
36 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
37 | { | |
38 | struct dsa_switch *ds = bus->priv; | |
39 | ||
0d8bcdd3 | 40 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
41 | return ds->drv->phy_write(ds, addr, reg, val); |
42 | ||
43 | return 0; | |
44 | } | |
45 | ||
46 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
47 | { | |
48 | ds->slave_mii_bus->priv = (void *)ds; | |
49 | ds->slave_mii_bus->name = "dsa slave smi"; | |
50 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
51 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
f490be04 FF |
52 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x", |
53 | ds->index, ds->pd->sw_addr); | |
b4d2394d | 54 | ds->slave_mii_bus->parent = ds->master_dev; |
24df8986 | 55 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
56 | } |
57 | ||
58 | ||
59 | /* slave device handling ****************************************************/ | |
abd2be00 | 60 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
61 | { |
62 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 63 | |
abd2be00 | 64 | return p->parent->dst->master_netdev->ifindex; |
c0840801 LB |
65 | } |
66 | ||
b73adef6 FF |
67 | static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p) |
68 | { | |
69 | return !!p->bridge_dev; | |
70 | } | |
71 | ||
91da11f8 LB |
72 | static int dsa_slave_open(struct net_device *dev) |
73 | { | |
df02c6ff | 74 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 75 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 76 | struct dsa_switch *ds = p->parent; |
b73adef6 FF |
77 | u8 stp_state = dsa_port_is_bridged(p) ? |
78 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; | |
df02c6ff LB |
79 | int err; |
80 | ||
81 | if (!(master->flags & IFF_UP)) | |
82 | return -ENETDOWN; | |
83 | ||
8feedbb4 | 84 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 85 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
86 | if (err < 0) |
87 | goto out; | |
88 | } | |
89 | ||
90 | if (dev->flags & IFF_ALLMULTI) { | |
91 | err = dev_set_allmulti(master, 1); | |
92 | if (err < 0) | |
93 | goto del_unicast; | |
94 | } | |
95 | if (dev->flags & IFF_PROMISC) { | |
96 | err = dev_set_promiscuity(master, 1); | |
97 | if (err < 0) | |
98 | goto clear_allmulti; | |
99 | } | |
100 | ||
b2f2af21 FF |
101 | if (ds->drv->port_enable) { |
102 | err = ds->drv->port_enable(ds, p->port, p->phy); | |
103 | if (err) | |
104 | goto clear_promisc; | |
105 | } | |
106 | ||
b73adef6 FF |
107 | if (ds->drv->port_stp_update) |
108 | ds->drv->port_stp_update(ds, p->port, stp_state); | |
109 | ||
f7f1de51 FF |
110 | if (p->phy) |
111 | phy_start(p->phy); | |
112 | ||
91da11f8 | 113 | return 0; |
df02c6ff | 114 | |
b2f2af21 FF |
115 | clear_promisc: |
116 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 117 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
118 | clear_allmulti: |
119 | if (dev->flags & IFF_ALLMULTI) | |
120 | dev_set_allmulti(master, -1); | |
121 | del_unicast: | |
8feedbb4 | 122 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 123 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
124 | out: |
125 | return err; | |
91da11f8 LB |
126 | } |
127 | ||
128 | static int dsa_slave_close(struct net_device *dev) | |
129 | { | |
df02c6ff | 130 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 131 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 132 | struct dsa_switch *ds = p->parent; |
df02c6ff | 133 | |
f7f1de51 FF |
134 | if (p->phy) |
135 | phy_stop(p->phy); | |
136 | ||
df02c6ff | 137 | dev_mc_unsync(master, dev); |
a748ee24 | 138 | dev_uc_unsync(master, dev); |
df02c6ff LB |
139 | if (dev->flags & IFF_ALLMULTI) |
140 | dev_set_allmulti(master, -1); | |
141 | if (dev->flags & IFF_PROMISC) | |
142 | dev_set_promiscuity(master, -1); | |
143 | ||
8feedbb4 | 144 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 145 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 146 | |
b2f2af21 FF |
147 | if (ds->drv->port_disable) |
148 | ds->drv->port_disable(ds, p->port, p->phy); | |
149 | ||
b73adef6 FF |
150 | if (ds->drv->port_stp_update) |
151 | ds->drv->port_stp_update(ds, p->port, BR_STATE_DISABLED); | |
152 | ||
91da11f8 LB |
153 | return 0; |
154 | } | |
155 | ||
156 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
157 | { | |
158 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 159 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
160 | |
161 | if (change & IFF_ALLMULTI) | |
162 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
163 | if (change & IFF_PROMISC) | |
164 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
165 | } | |
166 | ||
167 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
168 | { | |
169 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 170 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
171 | |
172 | dev_mc_sync(master, dev); | |
a748ee24 | 173 | dev_uc_sync(master, dev); |
91da11f8 LB |
174 | } |
175 | ||
df02c6ff | 176 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 177 | { |
df02c6ff | 178 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 179 | struct net_device *master = p->parent->dst->master_netdev; |
df02c6ff LB |
180 | struct sockaddr *addr = a; |
181 | int err; | |
182 | ||
183 | if (!is_valid_ether_addr(addr->sa_data)) | |
184 | return -EADDRNOTAVAIL; | |
185 | ||
186 | if (!(dev->flags & IFF_UP)) | |
187 | goto out; | |
188 | ||
8feedbb4 | 189 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 190 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
191 | if (err < 0) |
192 | return err; | |
193 | } | |
194 | ||
8feedbb4 | 195 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 196 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
197 | |
198 | out: | |
d08f161a | 199 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
200 | |
201 | return 0; | |
202 | } | |
203 | ||
204 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
205 | { | |
206 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
207 | |
208 | if (p->phy != NULL) | |
28b04113 | 209 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
210 | |
211 | return -EOPNOTSUPP; | |
212 | } | |
213 | ||
b73adef6 FF |
214 | /* Return a bitmask of all ports being currently bridged within a given bridge |
215 | * device. Note that on leave, the mask will still return the bitmask of ports | |
216 | * currently bridged, prior to port removal, and this is exactly what we want. | |
217 | */ | |
218 | static u32 dsa_slave_br_port_mask(struct dsa_switch *ds, | |
219 | struct net_device *bridge) | |
220 | { | |
221 | struct dsa_slave_priv *p; | |
222 | unsigned int port; | |
223 | u32 mask = 0; | |
224 | ||
225 | for (port = 0; port < DSA_MAX_PORTS; port++) { | |
d79d2107 | 226 | if (!dsa_is_port_initialized(ds, port)) |
b73adef6 FF |
227 | continue; |
228 | ||
229 | p = netdev_priv(ds->ports[port]); | |
230 | ||
231 | if (ds->ports[port]->priv_flags & IFF_BRIDGE_PORT && | |
232 | p->bridge_dev == bridge) | |
233 | mask |= 1 << port; | |
234 | } | |
235 | ||
236 | return mask; | |
237 | } | |
238 | ||
239 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) | |
240 | { | |
241 | struct dsa_slave_priv *p = netdev_priv(dev); | |
242 | struct dsa_switch *ds = p->parent; | |
243 | int ret = -EOPNOTSUPP; | |
244 | ||
245 | if (ds->drv->port_stp_update) | |
246 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
35636062 SF |
251 | static int dsa_slave_port_attr_set(struct net_device *dev, |
252 | struct switchdev_attr *attr) | |
253 | { | |
254 | int ret = 0; | |
255 | ||
256 | switch (attr->id) { | |
257 | case SWITCHDEV_ATTR_PORT_STP_STATE: | |
258 | if (attr->trans == SWITCHDEV_TRANS_COMMIT) | |
42275bd8 | 259 | ret = dsa_slave_stp_update(dev, attr->u.stp_state); |
35636062 SF |
260 | break; |
261 | default: | |
262 | ret = -EOPNOTSUPP; | |
263 | break; | |
264 | } | |
265 | ||
266 | return ret; | |
267 | } | |
268 | ||
55045ddd VD |
269 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
270 | struct switchdev_obj *obj) | |
271 | { | |
272 | struct switchdev_obj_fdb *fdb = &obj->u.fdb; | |
273 | struct dsa_slave_priv *p = netdev_priv(dev); | |
274 | struct dsa_switch *ds = p->parent; | |
275 | int err; | |
276 | ||
277 | if (obj->trans == SWITCHDEV_TRANS_PREPARE) | |
278 | err = ds->drv->port_fdb_add ? 0 : -EOPNOTSUPP; | |
279 | else if (obj->trans == SWITCHDEV_TRANS_COMMIT) | |
280 | err = ds->drv->port_fdb_add(ds, p->port, fdb->vid, fdb->addr); | |
281 | else | |
282 | err = -EOPNOTSUPP; | |
283 | ||
284 | return err; | |
285 | } | |
286 | ||
287 | static int dsa_slave_port_fdb_del(struct net_device *dev, | |
288 | struct switchdev_obj *obj) | |
289 | { | |
290 | struct switchdev_obj_fdb *fdb = &obj->u.fdb; | |
291 | struct dsa_slave_priv *p = netdev_priv(dev); | |
292 | struct dsa_switch *ds = p->parent; | |
293 | ||
294 | if (!ds->drv->port_fdb_del) | |
295 | return -EOPNOTSUPP; | |
296 | ||
297 | return ds->drv->port_fdb_del(ds, p->port, fdb->vid, fdb->addr); | |
298 | } | |
299 | ||
300 | static int dsa_slave_port_fdb_dump(struct net_device *dev, | |
301 | struct switchdev_obj *obj) | |
302 | { | |
303 | struct switchdev_obj_fdb *fdb = &obj->u.fdb; | |
304 | struct dsa_slave_priv *p = netdev_priv(dev); | |
305 | struct dsa_switch *ds = p->parent; | |
306 | int err; | |
307 | ||
308 | if (!ds->drv->port_fdb_getnext) | |
309 | return -EOPNOTSUPP; | |
310 | ||
311 | memset(fdb, 0, sizeof(*fdb)); | |
312 | ||
313 | for (;;) { | |
314 | err = ds->drv->port_fdb_getnext(ds, p->port, &fdb->vid, | |
315 | fdb->addr, &fdb->is_static); | |
316 | if (err) | |
317 | break; | |
318 | ||
319 | err = obj->cb(dev, obj); | |
320 | if (err) | |
321 | break; | |
322 | } | |
323 | ||
324 | return err == -ENOENT ? 0 : err; | |
325 | } | |
326 | ||
327 | static int dsa_slave_port_obj_add(struct net_device *dev, | |
328 | struct switchdev_obj *obj) | |
329 | { | |
330 | int err; | |
331 | ||
332 | switch (obj->id) { | |
333 | case SWITCHDEV_OBJ_PORT_FDB: | |
334 | err = dsa_slave_port_fdb_add(dev, obj); | |
335 | break; | |
336 | default: | |
337 | err = -EOPNOTSUPP; | |
338 | break; | |
339 | } | |
340 | ||
341 | return err; | |
342 | } | |
343 | ||
344 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
345 | struct switchdev_obj *obj) | |
346 | { | |
347 | int err; | |
348 | ||
349 | switch (obj->id) { | |
350 | case SWITCHDEV_OBJ_PORT_FDB: | |
351 | err = dsa_slave_port_fdb_del(dev, obj); | |
352 | break; | |
353 | default: | |
354 | err = -EOPNOTSUPP; | |
355 | break; | |
356 | } | |
357 | ||
358 | return err; | |
359 | } | |
360 | ||
361 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
362 | struct switchdev_obj *obj) | |
363 | { | |
364 | int err; | |
365 | ||
366 | switch (obj->id) { | |
367 | case SWITCHDEV_OBJ_PORT_FDB: | |
368 | err = dsa_slave_port_fdb_dump(dev, obj); | |
369 | break; | |
370 | default: | |
371 | err = -EOPNOTSUPP; | |
372 | break; | |
373 | } | |
374 | ||
375 | return err; | |
376 | } | |
377 | ||
b73adef6 FF |
378 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
379 | struct net_device *br) | |
380 | { | |
381 | struct dsa_slave_priv *p = netdev_priv(dev); | |
382 | struct dsa_switch *ds = p->parent; | |
383 | int ret = -EOPNOTSUPP; | |
384 | ||
385 | p->bridge_dev = br; | |
386 | ||
387 | if (ds->drv->port_join_bridge) | |
388 | ret = ds->drv->port_join_bridge(ds, p->port, | |
389 | dsa_slave_br_port_mask(ds, br)); | |
390 | ||
391 | return ret; | |
392 | } | |
393 | ||
394 | static int dsa_slave_bridge_port_leave(struct net_device *dev) | |
395 | { | |
396 | struct dsa_slave_priv *p = netdev_priv(dev); | |
397 | struct dsa_switch *ds = p->parent; | |
398 | int ret = -EOPNOTSUPP; | |
399 | ||
400 | ||
401 | if (ds->drv->port_leave_bridge) | |
402 | ret = ds->drv->port_leave_bridge(ds, p->port, | |
403 | dsa_slave_br_port_mask(ds, p->bridge_dev)); | |
404 | ||
405 | p->bridge_dev = NULL; | |
406 | ||
407 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
408 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
409 | */ | |
410 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
411 | ||
412 | return ret; | |
413 | } | |
414 | ||
f8e20a9f SF |
415 | static int dsa_slave_port_attr_get(struct net_device *dev, |
416 | struct switchdev_attr *attr) | |
b73adef6 FF |
417 | { |
418 | struct dsa_slave_priv *p = netdev_priv(dev); | |
419 | struct dsa_switch *ds = p->parent; | |
420 | ||
f8e20a9f SF |
421 | switch (attr->id) { |
422 | case SWITCHDEV_ATTR_PORT_PARENT_ID: | |
42275bd8 SF |
423 | attr->u.ppid.id_len = sizeof(ds->index); |
424 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
425 | break; |
426 | default: | |
427 | return -EOPNOTSUPP; | |
428 | } | |
b73adef6 FF |
429 | |
430 | return 0; | |
431 | } | |
432 | ||
04ff53f9 FF |
433 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
434 | struct sk_buff *skb) | |
435 | { | |
436 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
437 | if (p->netpoll) | |
438 | netpoll_send_skb(p->netpoll, skb); | |
439 | #else | |
440 | BUG(); | |
441 | #endif | |
442 | return NETDEV_TX_OK; | |
443 | } | |
444 | ||
3e8a72d1 FF |
445 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
446 | { | |
447 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 448 | struct sk_buff *nskb; |
3e8a72d1 | 449 | |
4ed70ce9 FF |
450 | dev->stats.tx_packets++; |
451 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 452 | |
4ed70ce9 FF |
453 | /* Transmit function may have to reallocate the original SKB */ |
454 | nskb = p->xmit(skb, dev); | |
455 | if (!nskb) | |
456 | return NETDEV_TX_OK; | |
5aed85ce | 457 | |
04ff53f9 FF |
458 | /* SKB for netpoll still need to be mangled with the protocol-specific |
459 | * tag to be successfully transmitted | |
460 | */ | |
461 | if (unlikely(netpoll_tx_running(dev))) | |
462 | return dsa_netpoll_send_skb(p, nskb); | |
463 | ||
4ed70ce9 FF |
464 | /* Queue the SKB for transmission on the parent interface, but |
465 | * do not modify its EtherType | |
466 | */ | |
467 | nskb->dev = p->parent->dst->master_netdev; | |
468 | dev_queue_xmit(nskb); | |
5aed85ce FF |
469 | |
470 | return NETDEV_TX_OK; | |
471 | } | |
472 | ||
4ed70ce9 FF |
473 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
474 | struct net_device *dev) | |
475 | { | |
476 | /* Just return the original SKB */ | |
477 | return skb; | |
478 | } | |
479 | ||
91da11f8 LB |
480 | |
481 | /* ethtool operations *******************************************************/ | |
482 | static int | |
483 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
484 | { | |
485 | struct dsa_slave_priv *p = netdev_priv(dev); | |
486 | int err; | |
487 | ||
488 | err = -EOPNOTSUPP; | |
489 | if (p->phy != NULL) { | |
490 | err = phy_read_status(p->phy); | |
491 | if (err == 0) | |
492 | err = phy_ethtool_gset(p->phy, cmd); | |
493 | } | |
494 | ||
495 | return err; | |
496 | } | |
497 | ||
498 | static int | |
499 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
500 | { | |
501 | struct dsa_slave_priv *p = netdev_priv(dev); | |
502 | ||
503 | if (p->phy != NULL) | |
504 | return phy_ethtool_sset(p->phy, cmd); | |
505 | ||
506 | return -EOPNOTSUPP; | |
507 | } | |
508 | ||
509 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
510 | struct ethtool_drvinfo *drvinfo) | |
511 | { | |
7826d43f JP |
512 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
513 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
514 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
515 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
516 | } |
517 | ||
3d762a0f GR |
518 | static int dsa_slave_get_regs_len(struct net_device *dev) |
519 | { | |
520 | struct dsa_slave_priv *p = netdev_priv(dev); | |
521 | struct dsa_switch *ds = p->parent; | |
522 | ||
523 | if (ds->drv->get_regs_len) | |
524 | return ds->drv->get_regs_len(ds, p->port); | |
525 | ||
526 | return -EOPNOTSUPP; | |
527 | } | |
528 | ||
529 | static void | |
530 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
531 | { | |
532 | struct dsa_slave_priv *p = netdev_priv(dev); | |
533 | struct dsa_switch *ds = p->parent; | |
534 | ||
535 | if (ds->drv->get_regs) | |
536 | ds->drv->get_regs(ds, p->port, regs, _p); | |
537 | } | |
538 | ||
91da11f8 LB |
539 | static int dsa_slave_nway_reset(struct net_device *dev) |
540 | { | |
541 | struct dsa_slave_priv *p = netdev_priv(dev); | |
542 | ||
543 | if (p->phy != NULL) | |
544 | return genphy_restart_aneg(p->phy); | |
545 | ||
546 | return -EOPNOTSUPP; | |
547 | } | |
548 | ||
549 | static u32 dsa_slave_get_link(struct net_device *dev) | |
550 | { | |
551 | struct dsa_slave_priv *p = netdev_priv(dev); | |
552 | ||
553 | if (p->phy != NULL) { | |
554 | genphy_update_link(p->phy); | |
555 | return p->phy->link; | |
556 | } | |
557 | ||
558 | return -EOPNOTSUPP; | |
559 | } | |
560 | ||
6793abb4 GR |
561 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
562 | { | |
563 | struct dsa_slave_priv *p = netdev_priv(dev); | |
564 | struct dsa_switch *ds = p->parent; | |
565 | ||
566 | if (ds->pd->eeprom_len) | |
567 | return ds->pd->eeprom_len; | |
568 | ||
569 | if (ds->drv->get_eeprom_len) | |
570 | return ds->drv->get_eeprom_len(ds); | |
571 | ||
572 | return 0; | |
573 | } | |
574 | ||
575 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
576 | struct ethtool_eeprom *eeprom, u8 *data) | |
577 | { | |
578 | struct dsa_slave_priv *p = netdev_priv(dev); | |
579 | struct dsa_switch *ds = p->parent; | |
580 | ||
581 | if (ds->drv->get_eeprom) | |
582 | return ds->drv->get_eeprom(ds, eeprom, data); | |
583 | ||
584 | return -EOPNOTSUPP; | |
585 | } | |
586 | ||
587 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
588 | struct ethtool_eeprom *eeprom, u8 *data) | |
589 | { | |
590 | struct dsa_slave_priv *p = netdev_priv(dev); | |
591 | struct dsa_switch *ds = p->parent; | |
592 | ||
593 | if (ds->drv->set_eeprom) | |
594 | return ds->drv->set_eeprom(ds, eeprom, data); | |
595 | ||
596 | return -EOPNOTSUPP; | |
597 | } | |
598 | ||
91da11f8 LB |
599 | static void dsa_slave_get_strings(struct net_device *dev, |
600 | uint32_t stringset, uint8_t *data) | |
601 | { | |
602 | struct dsa_slave_priv *p = netdev_priv(dev); | |
603 | struct dsa_switch *ds = p->parent; | |
604 | ||
605 | if (stringset == ETH_SS_STATS) { | |
606 | int len = ETH_GSTRING_LEN; | |
607 | ||
608 | strncpy(data, "tx_packets", len); | |
609 | strncpy(data + len, "tx_bytes", len); | |
610 | strncpy(data + 2 * len, "rx_packets", len); | |
611 | strncpy(data + 3 * len, "rx_bytes", len); | |
612 | if (ds->drv->get_strings != NULL) | |
613 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
614 | } | |
615 | } | |
616 | ||
617 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
618 | struct ethtool_stats *stats, | |
619 | uint64_t *data) | |
620 | { | |
621 | struct dsa_slave_priv *p = netdev_priv(dev); | |
622 | struct dsa_switch *ds = p->parent; | |
623 | ||
624 | data[0] = p->dev->stats.tx_packets; | |
625 | data[1] = p->dev->stats.tx_bytes; | |
626 | data[2] = p->dev->stats.rx_packets; | |
627 | data[3] = p->dev->stats.rx_bytes; | |
628 | if (ds->drv->get_ethtool_stats != NULL) | |
629 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
630 | } | |
631 | ||
632 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
633 | { | |
634 | struct dsa_slave_priv *p = netdev_priv(dev); | |
635 | struct dsa_switch *ds = p->parent; | |
636 | ||
637 | if (sset == ETH_SS_STATS) { | |
638 | int count; | |
639 | ||
640 | count = 4; | |
641 | if (ds->drv->get_sset_count != NULL) | |
642 | count += ds->drv->get_sset_count(ds); | |
643 | ||
644 | return count; | |
645 | } | |
646 | ||
647 | return -EOPNOTSUPP; | |
648 | } | |
649 | ||
19e57c4e FF |
650 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
651 | { | |
652 | struct dsa_slave_priv *p = netdev_priv(dev); | |
653 | struct dsa_switch *ds = p->parent; | |
654 | ||
655 | if (ds->drv->get_wol) | |
656 | ds->drv->get_wol(ds, p->port, w); | |
657 | } | |
658 | ||
659 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
660 | { | |
661 | struct dsa_slave_priv *p = netdev_priv(dev); | |
662 | struct dsa_switch *ds = p->parent; | |
663 | int ret = -EOPNOTSUPP; | |
664 | ||
665 | if (ds->drv->set_wol) | |
666 | ret = ds->drv->set_wol(ds, p->port, w); | |
667 | ||
668 | return ret; | |
669 | } | |
670 | ||
7905288f FF |
671 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
672 | { | |
673 | struct dsa_slave_priv *p = netdev_priv(dev); | |
674 | struct dsa_switch *ds = p->parent; | |
675 | int ret; | |
676 | ||
677 | if (!ds->drv->set_eee) | |
678 | return -EOPNOTSUPP; | |
679 | ||
680 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
681 | if (ret) | |
682 | return ret; | |
683 | ||
684 | if (p->phy) | |
685 | ret = phy_ethtool_set_eee(p->phy, e); | |
686 | ||
687 | return ret; | |
688 | } | |
689 | ||
690 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
691 | { | |
692 | struct dsa_slave_priv *p = netdev_priv(dev); | |
693 | struct dsa_switch *ds = p->parent; | |
694 | int ret; | |
695 | ||
696 | if (!ds->drv->get_eee) | |
697 | return -EOPNOTSUPP; | |
698 | ||
699 | ret = ds->drv->get_eee(ds, p->port, e); | |
700 | if (ret) | |
701 | return ret; | |
702 | ||
703 | if (p->phy) | |
704 | ret = phy_ethtool_get_eee(p->phy, e); | |
705 | ||
706 | return ret; | |
707 | } | |
708 | ||
04ff53f9 FF |
709 | #ifdef CONFIG_NET_POLL_CONTROLLER |
710 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
711 | struct netpoll_info *ni) | |
712 | { | |
713 | struct dsa_slave_priv *p = netdev_priv(dev); | |
714 | struct dsa_switch *ds = p->parent; | |
715 | struct net_device *master = ds->dst->master_netdev; | |
716 | struct netpoll *netpoll; | |
717 | int err = 0; | |
718 | ||
719 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
720 | if (!netpoll) | |
721 | return -ENOMEM; | |
722 | ||
723 | err = __netpoll_setup(netpoll, master); | |
724 | if (err) { | |
725 | kfree(netpoll); | |
726 | goto out; | |
727 | } | |
728 | ||
729 | p->netpoll = netpoll; | |
730 | out: | |
731 | return err; | |
732 | } | |
733 | ||
734 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
735 | { | |
736 | struct dsa_slave_priv *p = netdev_priv(dev); | |
737 | struct netpoll *netpoll = p->netpoll; | |
738 | ||
739 | if (!netpoll) | |
740 | return; | |
741 | ||
742 | p->netpoll = NULL; | |
743 | ||
744 | __netpoll_free_async(netpoll); | |
745 | } | |
746 | ||
747 | static void dsa_slave_poll_controller(struct net_device *dev) | |
748 | { | |
749 | } | |
750 | #endif | |
751 | ||
91da11f8 LB |
752 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
753 | .get_settings = dsa_slave_get_settings, | |
754 | .set_settings = dsa_slave_set_settings, | |
755 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
756 | .get_regs_len = dsa_slave_get_regs_len, |
757 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
758 | .nway_reset = dsa_slave_nway_reset, |
759 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
760 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
761 | .get_eeprom = dsa_slave_get_eeprom, | |
762 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
763 | .get_strings = dsa_slave_get_strings, |
764 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
765 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
766 | .set_wol = dsa_slave_set_wol, |
767 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
768 | .set_eee = dsa_slave_set_eee, |
769 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
770 | }; |
771 | ||
3e8a72d1 | 772 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
773 | .ndo_open = dsa_slave_open, |
774 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 775 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
776 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
777 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 778 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
55045ddd VD |
779 | .ndo_fdb_add = switchdev_port_fdb_add, |
780 | .ndo_fdb_del = switchdev_port_fdb_del, | |
781 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 782 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 783 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
784 | #ifdef CONFIG_NET_POLL_CONTROLLER |
785 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
786 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
787 | .ndo_poll_controller = dsa_slave_poll_controller, | |
788 | #endif | |
98237d43 SF |
789 | }; |
790 | ||
9d47c0a2 | 791 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 792 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 793 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
55045ddd VD |
794 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
795 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
796 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 797 | }; |
91da11f8 | 798 | |
0d8bcdd3 FF |
799 | static void dsa_slave_adjust_link(struct net_device *dev) |
800 | { | |
801 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 802 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
803 | unsigned int status_changed = 0; |
804 | ||
805 | if (p->old_link != p->phy->link) { | |
806 | status_changed = 1; | |
807 | p->old_link = p->phy->link; | |
808 | } | |
809 | ||
810 | if (p->old_duplex != p->phy->duplex) { | |
811 | status_changed = 1; | |
812 | p->old_duplex = p->phy->duplex; | |
813 | } | |
814 | ||
815 | if (p->old_pause != p->phy->pause) { | |
816 | status_changed = 1; | |
817 | p->old_pause = p->phy->pause; | |
818 | } | |
819 | ||
ec9436ba FF |
820 | if (ds->drv->adjust_link && status_changed) |
821 | ds->drv->adjust_link(ds, p->port, p->phy); | |
822 | ||
0d8bcdd3 FF |
823 | if (status_changed) |
824 | phy_print_status(p->phy); | |
825 | } | |
826 | ||
ce31b31c FF |
827 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
828 | struct fixed_phy_status *status) | |
829 | { | |
830 | struct dsa_slave_priv *p = netdev_priv(dev); | |
831 | struct dsa_switch *ds = p->parent; | |
832 | ||
833 | if (ds->drv->fixed_link_update) | |
834 | ds->drv->fixed_link_update(ds, p->port, status); | |
835 | ||
836 | return 0; | |
837 | } | |
838 | ||
91da11f8 | 839 | /* slave device setup *******************************************************/ |
c305c165 | 840 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
841 | struct net_device *slave_dev, |
842 | int addr) | |
c305c165 FF |
843 | { |
844 | struct dsa_switch *ds = p->parent; | |
845 | ||
cd28a1a9 | 846 | p->phy = ds->slave_mii_bus->phy_map[addr]; |
c305c165 FF |
847 | if (!p->phy) |
848 | return -ENODEV; | |
849 | ||
850 | /* Use already configured phy mode */ | |
851 | p->phy_interface = p->phy->interface; | |
852 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, | |
853 | p->phy_interface); | |
854 | ||
855 | return 0; | |
856 | } | |
857 | ||
9697f1cd | 858 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
859 | struct net_device *slave_dev) |
860 | { | |
861 | struct dsa_switch *ds = p->parent; | |
862 | struct dsa_chip_data *cd = ds->pd; | |
863 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 864 | bool phy_is_fixed = false; |
6819563e | 865 | u32 phy_flags = 0; |
19334920 | 866 | int mode, ret; |
0d8bcdd3 FF |
867 | |
868 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
869 | mode = of_get_phy_mode(port_dn); |
870 | if (mode < 0) | |
871 | mode = PHY_INTERFACE_MODE_NA; | |
872 | p->phy_interface = mode; | |
0d8bcdd3 FF |
873 | |
874 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
875 | if (of_phy_is_fixed_link(port_dn)) { | |
876 | /* In the case of a fixed PHY, the DT node associated | |
877 | * to the fixed PHY is the Port DT node | |
878 | */ | |
879 | ret = of_phy_register_fixed_link(port_dn); | |
880 | if (ret) { | |
a2ae6007 | 881 | netdev_err(slave_dev, "failed to register fixed PHY\n"); |
9697f1cd | 882 | return ret; |
0d8bcdd3 | 883 | } |
ce31b31c | 884 | phy_is_fixed = true; |
0d8bcdd3 FF |
885 | phy_dn = port_dn; |
886 | } | |
887 | ||
6819563e FF |
888 | if (ds->drv->get_phy_flags) |
889 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
890 | ||
cd28a1a9 FF |
891 | if (phy_dn) { |
892 | ret = of_mdio_parse_addr(&slave_dev->dev, phy_dn); | |
893 | /* If this PHY address is part of phys_mii_mask, which means | |
894 | * that we need to divert reads and writes to/from it, then we | |
895 | * want to bind this device using the slave MII bus created by | |
896 | * DSA to make that happen. | |
897 | */ | |
96026d05 FF |
898 | if (!phy_is_fixed && ret >= 0 && |
899 | (ds->phys_mii_mask & (1 << ret))) { | |
cd28a1a9 FF |
900 | ret = dsa_slave_phy_connect(p, slave_dev, ret); |
901 | if (ret) | |
902 | return ret; | |
903 | } else { | |
904 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
905 | dsa_slave_adjust_link, | |
906 | phy_flags, | |
907 | p->phy_interface); | |
908 | } | |
909 | } | |
0d8bcdd3 | 910 | |
ce31b31c FF |
911 | if (p->phy && phy_is_fixed) |
912 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
913 | ||
0d8bcdd3 FF |
914 | /* We could not connect to a designated PHY, so use the switch internal |
915 | * MDIO bus instead | |
916 | */ | |
b31f65fb | 917 | if (!p->phy) { |
cd28a1a9 | 918 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
c305c165 FF |
919 | if (ret) |
920 | return ret; | |
b31f65fb | 921 | } else { |
a2ae6007 JP |
922 | netdev_info(slave_dev, "attached PHY at address %d [%s]\n", |
923 | p->phy->addr, p->phy->drv->name); | |
b31f65fb | 924 | } |
9697f1cd FF |
925 | |
926 | return 0; | |
0d8bcdd3 FF |
927 | } |
928 | ||
448b4482 AL |
929 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
930 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
931 | struct netdev_queue *txq, | |
932 | void *_unused) | |
933 | { | |
934 | lockdep_set_class(&txq->_xmit_lock, | |
935 | &dsa_slave_netdev_xmit_lock_key); | |
936 | } | |
937 | ||
24462549 FF |
938 | int dsa_slave_suspend(struct net_device *slave_dev) |
939 | { | |
940 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
941 | ||
24462549 FF |
942 | if (p->phy) { |
943 | phy_stop(p->phy); | |
944 | p->old_pause = -1; | |
945 | p->old_link = -1; | |
946 | p->old_duplex = -1; | |
947 | phy_suspend(p->phy); | |
948 | } | |
949 | ||
950 | return 0; | |
951 | } | |
952 | ||
953 | int dsa_slave_resume(struct net_device *slave_dev) | |
954 | { | |
955 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
956 | ||
957 | netif_device_attach(slave_dev); | |
958 | ||
959 | if (p->phy) { | |
960 | phy_resume(p->phy); | |
961 | phy_start(p->phy); | |
962 | } | |
963 | ||
964 | return 0; | |
965 | } | |
966 | ||
d87d6f44 GR |
967 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
968 | int port, char *name) | |
91da11f8 | 969 | { |
e84665c9 | 970 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
971 | struct net_device *slave_dev; |
972 | struct dsa_slave_priv *p; | |
973 | int ret; | |
974 | ||
c835a677 TG |
975 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
976 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 977 | if (slave_dev == NULL) |
d87d6f44 | 978 | return -ENOMEM; |
91da11f8 LB |
979 | |
980 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 981 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 982 | eth_hw_addr_inherit(slave_dev, master); |
91da11f8 | 983 | slave_dev->tx_queue_len = 0; |
3e8a72d1 | 984 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 985 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
d442ad4a | 986 | |
448b4482 AL |
987 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
988 | NULL); | |
989 | ||
5075314e AD |
990 | SET_NETDEV_DEV(slave_dev, parent); |
991 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
992 | slave_dev->vlan_features = master->vlan_features; | |
993 | ||
994 | p = netdev_priv(slave_dev); | |
995 | p->dev = slave_dev; | |
996 | p->parent = ds; | |
997 | p->port = port; | |
998 | ||
e84665c9 | 999 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1000 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1001 | case DSA_TAG_PROTO_DSA: |
5075314e | 1002 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1003 | break; |
1004 | #endif | |
91da11f8 | 1005 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1006 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1007 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1008 | break; |
396138f0 LB |
1009 | #endif |
1010 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1011 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1012 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1013 | break; |
5037d532 FF |
1014 | #endif |
1015 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1016 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1017 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1018 | break; |
91da11f8 LB |
1019 | #endif |
1020 | default: | |
5075314e | 1021 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1022 | break; |
91da11f8 | 1023 | } |
d442ad4a | 1024 | |
0d8bcdd3 FF |
1025 | p->old_pause = -1; |
1026 | p->old_link = -1; | |
1027 | p->old_duplex = -1; | |
1028 | ||
9697f1cd FF |
1029 | ret = dsa_slave_phy_setup(p, slave_dev); |
1030 | if (ret) { | |
1031 | free_netdev(slave_dev); | |
d87d6f44 | 1032 | return ret; |
9697f1cd | 1033 | } |
91da11f8 | 1034 | |
d87d6f44 | 1035 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1036 | ret = register_netdev(slave_dev); |
1037 | if (ret) { | |
a2ae6007 JP |
1038 | netdev_err(master, "error %d registering interface %s\n", |
1039 | ret, slave_dev->name); | |
9697f1cd | 1040 | phy_disconnect(p->phy); |
d87d6f44 | 1041 | ds->ports[port] = NULL; |
91da11f8 | 1042 | free_netdev(slave_dev); |
d87d6f44 | 1043 | return ret; |
91da11f8 LB |
1044 | } |
1045 | ||
1046 | netif_carrier_off(slave_dev); | |
1047 | ||
d87d6f44 | 1048 | return 0; |
91da11f8 | 1049 | } |
b73adef6 FF |
1050 | |
1051 | static bool dsa_slave_dev_check(struct net_device *dev) | |
1052 | { | |
1053 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1054 | } | |
1055 | ||
1056 | static int dsa_slave_master_changed(struct net_device *dev) | |
1057 | { | |
1058 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
b06b107a | 1059 | struct dsa_slave_priv *p = netdev_priv(dev); |
b73adef6 FF |
1060 | int err = 0; |
1061 | ||
1062 | if (master && master->rtnl_link_ops && | |
1063 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
1064 | err = dsa_slave_bridge_port_join(dev, master); | |
b06b107a | 1065 | else if (dsa_port_is_bridged(p)) |
b73adef6 FF |
1066 | err = dsa_slave_bridge_port_leave(dev); |
1067 | ||
1068 | return err; | |
1069 | } | |
1070 | ||
1071 | int dsa_slave_netdevice_event(struct notifier_block *unused, | |
1072 | unsigned long event, void *ptr) | |
1073 | { | |
1074 | struct net_device *dev; | |
1075 | int err = 0; | |
1076 | ||
1077 | switch (event) { | |
1078 | case NETDEV_CHANGEUPPER: | |
1079 | dev = netdev_notifier_info_to_dev(ptr); | |
1080 | if (!dsa_slave_dev_check(dev)) | |
1081 | goto out; | |
1082 | ||
1083 | err = dsa_slave_master_changed(dev); | |
1084 | if (err) | |
1085 | netdev_warn(dev, "failed to reflect master change\n"); | |
1086 | ||
1087 | break; | |
1088 | } | |
1089 | ||
1090 | out: | |
1091 | return NOTIFY_DONE; | |
1092 | } |