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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> |
91da11f8 LB |
22 | #include "dsa_priv.h" |
23 | ||
24 | /* slave mii_bus handling ***************************************************/ | |
25 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
26 | { | |
27 | struct dsa_switch *ds = bus->priv; | |
28 | ||
0d8bcdd3 | 29 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
30 | return ds->drv->phy_read(ds, addr, reg); |
31 | ||
32 | return 0xffff; | |
33 | } | |
34 | ||
35 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
36 | { | |
37 | struct dsa_switch *ds = bus->priv; | |
38 | ||
0d8bcdd3 | 39 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
40 | return ds->drv->phy_write(ds, addr, reg, val); |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
45 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
46 | { | |
47 | ds->slave_mii_bus->priv = (void *)ds; | |
48 | ds->slave_mii_bus->name = "dsa slave smi"; | |
49 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
50 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
f490be04 FF |
51 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x", |
52 | ds->index, ds->pd->sw_addr); | |
b4d2394d | 53 | ds->slave_mii_bus->parent = ds->master_dev; |
24df8986 | 54 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
55 | } |
56 | ||
57 | ||
58 | /* slave device handling ****************************************************/ | |
abd2be00 | 59 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
60 | { |
61 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 62 | |
abd2be00 | 63 | return p->parent->dst->master_netdev->ifindex; |
c0840801 LB |
64 | } |
65 | ||
b73adef6 FF |
66 | static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p) |
67 | { | |
68 | return !!p->bridge_dev; | |
69 | } | |
70 | ||
91da11f8 LB |
71 | static int dsa_slave_open(struct net_device *dev) |
72 | { | |
df02c6ff | 73 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 74 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 75 | struct dsa_switch *ds = p->parent; |
b73adef6 FF |
76 | u8 stp_state = dsa_port_is_bridged(p) ? |
77 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; | |
df02c6ff LB |
78 | int err; |
79 | ||
80 | if (!(master->flags & IFF_UP)) | |
81 | return -ENETDOWN; | |
82 | ||
8feedbb4 | 83 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 84 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
85 | if (err < 0) |
86 | goto out; | |
87 | } | |
88 | ||
89 | if (dev->flags & IFF_ALLMULTI) { | |
90 | err = dev_set_allmulti(master, 1); | |
91 | if (err < 0) | |
92 | goto del_unicast; | |
93 | } | |
94 | if (dev->flags & IFF_PROMISC) { | |
95 | err = dev_set_promiscuity(master, 1); | |
96 | if (err < 0) | |
97 | goto clear_allmulti; | |
98 | } | |
99 | ||
b2f2af21 FF |
100 | if (ds->drv->port_enable) { |
101 | err = ds->drv->port_enable(ds, p->port, p->phy); | |
102 | if (err) | |
103 | goto clear_promisc; | |
104 | } | |
105 | ||
b73adef6 FF |
106 | if (ds->drv->port_stp_update) |
107 | ds->drv->port_stp_update(ds, p->port, stp_state); | |
108 | ||
f7f1de51 FF |
109 | if (p->phy) |
110 | phy_start(p->phy); | |
111 | ||
91da11f8 | 112 | return 0; |
df02c6ff | 113 | |
b2f2af21 FF |
114 | clear_promisc: |
115 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 116 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
117 | clear_allmulti: |
118 | if (dev->flags & IFF_ALLMULTI) | |
119 | dev_set_allmulti(master, -1); | |
120 | del_unicast: | |
8feedbb4 | 121 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 122 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
123 | out: |
124 | return err; | |
91da11f8 LB |
125 | } |
126 | ||
127 | static int dsa_slave_close(struct net_device *dev) | |
128 | { | |
df02c6ff | 129 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 130 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 131 | struct dsa_switch *ds = p->parent; |
df02c6ff | 132 | |
f7f1de51 FF |
133 | if (p->phy) |
134 | phy_stop(p->phy); | |
135 | ||
df02c6ff | 136 | dev_mc_unsync(master, dev); |
a748ee24 | 137 | dev_uc_unsync(master, dev); |
df02c6ff LB |
138 | if (dev->flags & IFF_ALLMULTI) |
139 | dev_set_allmulti(master, -1); | |
140 | if (dev->flags & IFF_PROMISC) | |
141 | dev_set_promiscuity(master, -1); | |
142 | ||
8feedbb4 | 143 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 144 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 145 | |
b2f2af21 FF |
146 | if (ds->drv->port_disable) |
147 | ds->drv->port_disable(ds, p->port, p->phy); | |
148 | ||
b73adef6 FF |
149 | if (ds->drv->port_stp_update) |
150 | ds->drv->port_stp_update(ds, p->port, BR_STATE_DISABLED); | |
151 | ||
91da11f8 LB |
152 | return 0; |
153 | } | |
154 | ||
155 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
156 | { | |
157 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 158 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
159 | |
160 | if (change & IFF_ALLMULTI) | |
161 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
162 | if (change & IFF_PROMISC) | |
163 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
164 | } | |
165 | ||
166 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
167 | { | |
168 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 169 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
170 | |
171 | dev_mc_sync(master, dev); | |
a748ee24 | 172 | dev_uc_sync(master, dev); |
91da11f8 LB |
173 | } |
174 | ||
df02c6ff | 175 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 176 | { |
df02c6ff | 177 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 178 | struct net_device *master = p->parent->dst->master_netdev; |
df02c6ff LB |
179 | struct sockaddr *addr = a; |
180 | int err; | |
181 | ||
182 | if (!is_valid_ether_addr(addr->sa_data)) | |
183 | return -EADDRNOTAVAIL; | |
184 | ||
185 | if (!(dev->flags & IFF_UP)) | |
186 | goto out; | |
187 | ||
8feedbb4 | 188 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 189 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
190 | if (err < 0) |
191 | return err; | |
192 | } | |
193 | ||
8feedbb4 | 194 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 195 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
196 | |
197 | out: | |
d08f161a | 198 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
199 | |
200 | return 0; | |
201 | } | |
202 | ||
11149536 VD |
203 | static int dsa_bridge_check_vlan_range(struct dsa_switch *ds, |
204 | const struct net_device *bridge, | |
205 | u16 vid_begin, u16 vid_end) | |
206 | { | |
207 | struct dsa_slave_priv *p; | |
208 | struct net_device *dev, *vlan_br; | |
209 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
210 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
211 | u16 vid; | |
212 | int member, err; | |
213 | ||
214 | if (!ds->drv->vlan_getnext || !vid_begin) | |
215 | return -EOPNOTSUPP; | |
216 | ||
217 | vid = vid_begin - 1; | |
218 | ||
219 | do { | |
220 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
221 | if (err) | |
222 | break; | |
223 | ||
224 | if (vid > vid_end) | |
225 | break; | |
226 | ||
227 | member = find_first_bit(members, DSA_MAX_PORTS); | |
228 | if (member == DSA_MAX_PORTS) | |
229 | continue; | |
230 | ||
231 | dev = ds->ports[member]; | |
232 | p = netdev_priv(dev); | |
233 | vlan_br = p->bridge_dev; | |
234 | if (vlan_br == bridge) | |
235 | continue; | |
236 | ||
237 | netdev_dbg(vlan_br, "hardware VLAN %d already in use\n", vid); | |
238 | return -EOPNOTSUPP; | |
239 | } while (vid < vid_end); | |
240 | ||
241 | return err == -ENOENT ? 0 : err; | |
242 | } | |
243 | ||
244 | static int dsa_slave_port_vlan_add(struct net_device *dev, | |
245 | struct switchdev_obj *obj) | |
246 | { | |
247 | struct switchdev_obj_vlan *vlan = &obj->u.vlan; | |
248 | struct dsa_slave_priv *p = netdev_priv(dev); | |
249 | struct dsa_switch *ds = p->parent; | |
250 | u16 vid; | |
251 | int err; | |
252 | ||
253 | switch (obj->trans) { | |
254 | case SWITCHDEV_TRANS_PREPARE: | |
255 | if (!ds->drv->port_vlan_add || !ds->drv->port_pvid_set) | |
256 | return -EOPNOTSUPP; | |
257 | ||
258 | /* If the requested port doesn't belong to the same bridge as | |
259 | * the VLAN members, fallback to software VLAN (hopefully). | |
260 | */ | |
261 | err = dsa_bridge_check_vlan_range(ds, p->bridge_dev, | |
262 | vlan->vid_begin, | |
263 | vlan->vid_end); | |
264 | if (err) | |
265 | return err; | |
266 | break; | |
267 | case SWITCHDEV_TRANS_COMMIT: | |
268 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { | |
269 | err = ds->drv->port_vlan_add(ds, p->port, vid, | |
270 | vlan->flags & | |
271 | BRIDGE_VLAN_INFO_UNTAGGED); | |
272 | if (!err && vlan->flags & BRIDGE_VLAN_INFO_PVID) | |
273 | err = ds->drv->port_pvid_set(ds, p->port, vid); | |
274 | if (err) | |
275 | return err; | |
276 | } | |
277 | break; | |
278 | default: | |
279 | return -EOPNOTSUPP; | |
280 | } | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
286 | struct switchdev_obj *obj) | |
287 | { | |
288 | struct switchdev_obj_vlan *vlan = &obj->u.vlan; | |
289 | struct dsa_slave_priv *p = netdev_priv(dev); | |
290 | struct dsa_switch *ds = p->parent; | |
291 | u16 vid; | |
292 | int err; | |
293 | ||
294 | if (!ds->drv->port_vlan_del) | |
295 | return -EOPNOTSUPP; | |
296 | ||
297 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { | |
298 | err = ds->drv->port_vlan_del(ds, p->port, vid); | |
299 | if (err) | |
300 | return err; | |
301 | } | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
307 | struct switchdev_obj *obj) | |
308 | { | |
309 | struct switchdev_obj_vlan *vlan = &obj->u.vlan; | |
310 | struct dsa_slave_priv *p = netdev_priv(dev); | |
311 | struct dsa_switch *ds = p->parent; | |
312 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
313 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
314 | u16 pvid, vid = 0; | |
315 | int err; | |
316 | ||
317 | if (!ds->drv->vlan_getnext || !ds->drv->port_pvid_get) | |
318 | return -EOPNOTSUPP; | |
319 | ||
320 | err = ds->drv->port_pvid_get(ds, p->port, &pvid); | |
321 | if (err) | |
322 | return err; | |
323 | ||
324 | for (;;) { | |
325 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
326 | if (err) | |
327 | break; | |
328 | ||
329 | if (!test_bit(p->port, members)) | |
330 | continue; | |
331 | ||
332 | memset(vlan, 0, sizeof(*vlan)); | |
333 | vlan->vid_begin = vlan->vid_end = vid; | |
334 | ||
335 | if (vid == pvid) | |
336 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
337 | ||
338 | if (test_bit(p->port, untagged)) | |
339 | vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED; | |
340 | ||
341 | err = obj->cb(dev, obj); | |
342 | if (err) | |
343 | break; | |
344 | } | |
345 | ||
346 | return err == -ENOENT ? 0 : err; | |
347 | } | |
348 | ||
ba14d9eb VD |
349 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
350 | struct switchdev_obj *obj) | |
cdf09697 | 351 | { |
ba14d9eb | 352 | struct switchdev_obj_fdb *fdb = &obj->u.fdb; |
cdf09697 DM |
353 | struct dsa_slave_priv *p = netdev_priv(dev); |
354 | struct dsa_switch *ds = p->parent; | |
355 | int ret = -EOPNOTSUPP; | |
356 | ||
ba14d9eb VD |
357 | if (obj->trans == SWITCHDEV_TRANS_PREPARE) |
358 | ret = ds->drv->port_fdb_add ? 0 : -EOPNOTSUPP; | |
359 | else if (obj->trans == SWITCHDEV_TRANS_COMMIT) | |
360 | ret = ds->drv->port_fdb_add(ds, p->port, fdb->addr, fdb->vid); | |
cdf09697 DM |
361 | |
362 | return ret; | |
363 | } | |
364 | ||
ba14d9eb VD |
365 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
366 | struct switchdev_obj *obj) | |
cdf09697 | 367 | { |
ba14d9eb | 368 | struct switchdev_obj_fdb *fdb = &obj->u.fdb; |
cdf09697 DM |
369 | struct dsa_slave_priv *p = netdev_priv(dev); |
370 | struct dsa_switch *ds = p->parent; | |
371 | int ret = -EOPNOTSUPP; | |
372 | ||
2a778e1b | 373 | if (ds->drv->port_fdb_del) |
ba14d9eb | 374 | ret = ds->drv->port_fdb_del(ds, p->port, fdb->addr, fdb->vid); |
cdf09697 DM |
375 | |
376 | return ret; | |
377 | } | |
378 | ||
ba14d9eb VD |
379 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
380 | struct switchdev_obj *obj) | |
cdf09697 DM |
381 | { |
382 | struct dsa_slave_priv *p = netdev_priv(dev); | |
383 | struct dsa_switch *ds = p->parent; | |
384 | unsigned char addr[ETH_ALEN] = { 0 }; | |
2a778e1b | 385 | u16 vid = 0; |
cdf09697 DM |
386 | int ret; |
387 | ||
2a778e1b | 388 | if (!ds->drv->port_fdb_getnext) |
cdf09697 DM |
389 | return -EOPNOTSUPP; |
390 | ||
ba14d9eb | 391 | for (;;) { |
cdf09697 DM |
392 | bool is_static; |
393 | ||
2a778e1b VD |
394 | ret = ds->drv->port_fdb_getnext(ds, p->port, addr, &vid, |
395 | &is_static); | |
cdf09697 DM |
396 | if (ret < 0) |
397 | break; | |
398 | ||
ba14d9eb VD |
399 | obj->u.fdb.addr = addr; |
400 | obj->u.fdb.vid = vid; | |
401 | obj->u.fdb.ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
cdf09697 | 402 | |
ba14d9eb | 403 | ret = obj->cb(dev, obj); |
cdf09697 DM |
404 | if (ret < 0) |
405 | break; | |
406 | } | |
407 | ||
ba14d9eb | 408 | return ret == -ENOENT ? 0 : ret; |
cdf09697 DM |
409 | } |
410 | ||
91da11f8 LB |
411 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
412 | { | |
413 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
414 | |
415 | if (p->phy != NULL) | |
28b04113 | 416 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
417 | |
418 | return -EOPNOTSUPP; | |
419 | } | |
420 | ||
b73adef6 FF |
421 | /* Return a bitmask of all ports being currently bridged within a given bridge |
422 | * device. Note that on leave, the mask will still return the bitmask of ports | |
423 | * currently bridged, prior to port removal, and this is exactly what we want. | |
424 | */ | |
425 | static u32 dsa_slave_br_port_mask(struct dsa_switch *ds, | |
426 | struct net_device *bridge) | |
427 | { | |
428 | struct dsa_slave_priv *p; | |
429 | unsigned int port; | |
430 | u32 mask = 0; | |
431 | ||
432 | for (port = 0; port < DSA_MAX_PORTS; port++) { | |
d79d2107 | 433 | if (!dsa_is_port_initialized(ds, port)) |
b73adef6 FF |
434 | continue; |
435 | ||
436 | p = netdev_priv(ds->ports[port]); | |
437 | ||
438 | if (ds->ports[port]->priv_flags & IFF_BRIDGE_PORT && | |
439 | p->bridge_dev == bridge) | |
440 | mask |= 1 << port; | |
441 | } | |
442 | ||
443 | return mask; | |
444 | } | |
445 | ||
446 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) | |
447 | { | |
448 | struct dsa_slave_priv *p = netdev_priv(dev); | |
449 | struct dsa_switch *ds = p->parent; | |
450 | int ret = -EOPNOTSUPP; | |
451 | ||
452 | if (ds->drv->port_stp_update) | |
453 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
454 | ||
455 | return ret; | |
456 | } | |
457 | ||
35636062 SF |
458 | static int dsa_slave_port_attr_set(struct net_device *dev, |
459 | struct switchdev_attr *attr) | |
460 | { | |
461 | int ret = 0; | |
462 | ||
463 | switch (attr->id) { | |
464 | case SWITCHDEV_ATTR_PORT_STP_STATE: | |
465 | if (attr->trans == SWITCHDEV_TRANS_COMMIT) | |
42275bd8 | 466 | ret = dsa_slave_stp_update(dev, attr->u.stp_state); |
35636062 SF |
467 | break; |
468 | default: | |
469 | ret = -EOPNOTSUPP; | |
470 | break; | |
471 | } | |
472 | ||
473 | return ret; | |
474 | } | |
475 | ||
ba14d9eb VD |
476 | static int dsa_slave_port_obj_add(struct net_device *dev, |
477 | struct switchdev_obj *obj) | |
478 | { | |
479 | int err; | |
480 | ||
481 | /* For the prepare phase, ensure the full set of changes is feasable in | |
482 | * one go in order to signal a failure properly. If an operation is not | |
483 | * supported, return -EOPNOTSUPP. | |
484 | */ | |
485 | ||
486 | switch (obj->id) { | |
487 | case SWITCHDEV_OBJ_PORT_FDB: | |
488 | err = dsa_slave_port_fdb_add(dev, obj); | |
489 | break; | |
11149536 VD |
490 | case SWITCHDEV_OBJ_PORT_VLAN: |
491 | err = dsa_slave_port_vlan_add(dev, obj); | |
492 | break; | |
ba14d9eb VD |
493 | default: |
494 | err = -EOPNOTSUPP; | |
495 | break; | |
496 | } | |
497 | ||
498 | return err; | |
499 | } | |
500 | ||
501 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
502 | struct switchdev_obj *obj) | |
503 | { | |
504 | int err; | |
505 | ||
506 | switch (obj->id) { | |
507 | case SWITCHDEV_OBJ_PORT_FDB: | |
508 | err = dsa_slave_port_fdb_del(dev, obj); | |
509 | break; | |
11149536 VD |
510 | case SWITCHDEV_OBJ_PORT_VLAN: |
511 | err = dsa_slave_port_vlan_del(dev, obj); | |
512 | break; | |
ba14d9eb VD |
513 | default: |
514 | err = -EOPNOTSUPP; | |
515 | break; | |
516 | } | |
517 | ||
518 | return err; | |
519 | } | |
520 | ||
521 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
522 | struct switchdev_obj *obj) | |
523 | { | |
524 | int err; | |
525 | ||
526 | switch (obj->id) { | |
527 | case SWITCHDEV_OBJ_PORT_FDB: | |
528 | err = dsa_slave_port_fdb_dump(dev, obj); | |
529 | break; | |
11149536 VD |
530 | case SWITCHDEV_OBJ_PORT_VLAN: |
531 | err = dsa_slave_port_vlan_dump(dev, obj); | |
532 | break; | |
ba14d9eb VD |
533 | default: |
534 | err = -EOPNOTSUPP; | |
535 | break; | |
536 | } | |
537 | ||
538 | return err; | |
539 | } | |
540 | ||
b73adef6 FF |
541 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
542 | struct net_device *br) | |
543 | { | |
544 | struct dsa_slave_priv *p = netdev_priv(dev); | |
545 | struct dsa_switch *ds = p->parent; | |
546 | int ret = -EOPNOTSUPP; | |
547 | ||
548 | p->bridge_dev = br; | |
549 | ||
550 | if (ds->drv->port_join_bridge) | |
551 | ret = ds->drv->port_join_bridge(ds, p->port, | |
552 | dsa_slave_br_port_mask(ds, br)); | |
553 | ||
554 | return ret; | |
555 | } | |
556 | ||
557 | static int dsa_slave_bridge_port_leave(struct net_device *dev) | |
558 | { | |
559 | struct dsa_slave_priv *p = netdev_priv(dev); | |
560 | struct dsa_switch *ds = p->parent; | |
561 | int ret = -EOPNOTSUPP; | |
562 | ||
563 | ||
564 | if (ds->drv->port_leave_bridge) | |
565 | ret = ds->drv->port_leave_bridge(ds, p->port, | |
566 | dsa_slave_br_port_mask(ds, p->bridge_dev)); | |
567 | ||
568 | p->bridge_dev = NULL; | |
569 | ||
570 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
571 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
572 | */ | |
573 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
574 | ||
575 | return ret; | |
576 | } | |
577 | ||
f8e20a9f SF |
578 | static int dsa_slave_port_attr_get(struct net_device *dev, |
579 | struct switchdev_attr *attr) | |
b73adef6 FF |
580 | { |
581 | struct dsa_slave_priv *p = netdev_priv(dev); | |
582 | struct dsa_switch *ds = p->parent; | |
583 | ||
f8e20a9f SF |
584 | switch (attr->id) { |
585 | case SWITCHDEV_ATTR_PORT_PARENT_ID: | |
42275bd8 SF |
586 | attr->u.ppid.id_len = sizeof(ds->index); |
587 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
588 | break; |
589 | default: | |
590 | return -EOPNOTSUPP; | |
591 | } | |
b73adef6 FF |
592 | |
593 | return 0; | |
594 | } | |
595 | ||
04ff53f9 FF |
596 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
597 | struct sk_buff *skb) | |
598 | { | |
599 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
600 | if (p->netpoll) | |
601 | netpoll_send_skb(p->netpoll, skb); | |
602 | #else | |
603 | BUG(); | |
604 | #endif | |
605 | return NETDEV_TX_OK; | |
606 | } | |
607 | ||
3e8a72d1 FF |
608 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
609 | { | |
610 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 611 | struct sk_buff *nskb; |
3e8a72d1 | 612 | |
4ed70ce9 FF |
613 | dev->stats.tx_packets++; |
614 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 615 | |
4ed70ce9 FF |
616 | /* Transmit function may have to reallocate the original SKB */ |
617 | nskb = p->xmit(skb, dev); | |
618 | if (!nskb) | |
619 | return NETDEV_TX_OK; | |
5aed85ce | 620 | |
04ff53f9 FF |
621 | /* SKB for netpoll still need to be mangled with the protocol-specific |
622 | * tag to be successfully transmitted | |
623 | */ | |
624 | if (unlikely(netpoll_tx_running(dev))) | |
625 | return dsa_netpoll_send_skb(p, nskb); | |
626 | ||
4ed70ce9 FF |
627 | /* Queue the SKB for transmission on the parent interface, but |
628 | * do not modify its EtherType | |
629 | */ | |
630 | nskb->dev = p->parent->dst->master_netdev; | |
631 | dev_queue_xmit(nskb); | |
5aed85ce FF |
632 | |
633 | return NETDEV_TX_OK; | |
634 | } | |
635 | ||
4ed70ce9 FF |
636 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
637 | struct net_device *dev) | |
638 | { | |
639 | /* Just return the original SKB */ | |
640 | return skb; | |
641 | } | |
642 | ||
91da11f8 LB |
643 | |
644 | /* ethtool operations *******************************************************/ | |
645 | static int | |
646 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
647 | { | |
648 | struct dsa_slave_priv *p = netdev_priv(dev); | |
649 | int err; | |
650 | ||
651 | err = -EOPNOTSUPP; | |
652 | if (p->phy != NULL) { | |
653 | err = phy_read_status(p->phy); | |
654 | if (err == 0) | |
655 | err = phy_ethtool_gset(p->phy, cmd); | |
656 | } | |
657 | ||
658 | return err; | |
659 | } | |
660 | ||
661 | static int | |
662 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
663 | { | |
664 | struct dsa_slave_priv *p = netdev_priv(dev); | |
665 | ||
666 | if (p->phy != NULL) | |
667 | return phy_ethtool_sset(p->phy, cmd); | |
668 | ||
669 | return -EOPNOTSUPP; | |
670 | } | |
671 | ||
672 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
673 | struct ethtool_drvinfo *drvinfo) | |
674 | { | |
7826d43f JP |
675 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
676 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
677 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
678 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
679 | } |
680 | ||
3d762a0f GR |
681 | static int dsa_slave_get_regs_len(struct net_device *dev) |
682 | { | |
683 | struct dsa_slave_priv *p = netdev_priv(dev); | |
684 | struct dsa_switch *ds = p->parent; | |
685 | ||
686 | if (ds->drv->get_regs_len) | |
687 | return ds->drv->get_regs_len(ds, p->port); | |
688 | ||
689 | return -EOPNOTSUPP; | |
690 | } | |
691 | ||
692 | static void | |
693 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
694 | { | |
695 | struct dsa_slave_priv *p = netdev_priv(dev); | |
696 | struct dsa_switch *ds = p->parent; | |
697 | ||
698 | if (ds->drv->get_regs) | |
699 | ds->drv->get_regs(ds, p->port, regs, _p); | |
700 | } | |
701 | ||
91da11f8 LB |
702 | static int dsa_slave_nway_reset(struct net_device *dev) |
703 | { | |
704 | struct dsa_slave_priv *p = netdev_priv(dev); | |
705 | ||
706 | if (p->phy != NULL) | |
707 | return genphy_restart_aneg(p->phy); | |
708 | ||
709 | return -EOPNOTSUPP; | |
710 | } | |
711 | ||
712 | static u32 dsa_slave_get_link(struct net_device *dev) | |
713 | { | |
714 | struct dsa_slave_priv *p = netdev_priv(dev); | |
715 | ||
716 | if (p->phy != NULL) { | |
717 | genphy_update_link(p->phy); | |
718 | return p->phy->link; | |
719 | } | |
720 | ||
721 | return -EOPNOTSUPP; | |
722 | } | |
723 | ||
6793abb4 GR |
724 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
725 | { | |
726 | struct dsa_slave_priv *p = netdev_priv(dev); | |
727 | struct dsa_switch *ds = p->parent; | |
728 | ||
729 | if (ds->pd->eeprom_len) | |
730 | return ds->pd->eeprom_len; | |
731 | ||
732 | if (ds->drv->get_eeprom_len) | |
733 | return ds->drv->get_eeprom_len(ds); | |
734 | ||
735 | return 0; | |
736 | } | |
737 | ||
738 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
739 | struct ethtool_eeprom *eeprom, u8 *data) | |
740 | { | |
741 | struct dsa_slave_priv *p = netdev_priv(dev); | |
742 | struct dsa_switch *ds = p->parent; | |
743 | ||
744 | if (ds->drv->get_eeprom) | |
745 | return ds->drv->get_eeprom(ds, eeprom, data); | |
746 | ||
747 | return -EOPNOTSUPP; | |
748 | } | |
749 | ||
750 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
751 | struct ethtool_eeprom *eeprom, u8 *data) | |
752 | { | |
753 | struct dsa_slave_priv *p = netdev_priv(dev); | |
754 | struct dsa_switch *ds = p->parent; | |
755 | ||
756 | if (ds->drv->set_eeprom) | |
757 | return ds->drv->set_eeprom(ds, eeprom, data); | |
758 | ||
759 | return -EOPNOTSUPP; | |
760 | } | |
761 | ||
91da11f8 LB |
762 | static void dsa_slave_get_strings(struct net_device *dev, |
763 | uint32_t stringset, uint8_t *data) | |
764 | { | |
765 | struct dsa_slave_priv *p = netdev_priv(dev); | |
766 | struct dsa_switch *ds = p->parent; | |
767 | ||
768 | if (stringset == ETH_SS_STATS) { | |
769 | int len = ETH_GSTRING_LEN; | |
770 | ||
771 | strncpy(data, "tx_packets", len); | |
772 | strncpy(data + len, "tx_bytes", len); | |
773 | strncpy(data + 2 * len, "rx_packets", len); | |
774 | strncpy(data + 3 * len, "rx_bytes", len); | |
775 | if (ds->drv->get_strings != NULL) | |
776 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
777 | } | |
778 | } | |
779 | ||
780 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
781 | struct ethtool_stats *stats, | |
782 | uint64_t *data) | |
783 | { | |
784 | struct dsa_slave_priv *p = netdev_priv(dev); | |
785 | struct dsa_switch *ds = p->parent; | |
786 | ||
787 | data[0] = p->dev->stats.tx_packets; | |
788 | data[1] = p->dev->stats.tx_bytes; | |
789 | data[2] = p->dev->stats.rx_packets; | |
790 | data[3] = p->dev->stats.rx_bytes; | |
791 | if (ds->drv->get_ethtool_stats != NULL) | |
792 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
793 | } | |
794 | ||
795 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
796 | { | |
797 | struct dsa_slave_priv *p = netdev_priv(dev); | |
798 | struct dsa_switch *ds = p->parent; | |
799 | ||
800 | if (sset == ETH_SS_STATS) { | |
801 | int count; | |
802 | ||
803 | count = 4; | |
804 | if (ds->drv->get_sset_count != NULL) | |
805 | count += ds->drv->get_sset_count(ds); | |
806 | ||
807 | return count; | |
808 | } | |
809 | ||
810 | return -EOPNOTSUPP; | |
811 | } | |
812 | ||
19e57c4e FF |
813 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
814 | { | |
815 | struct dsa_slave_priv *p = netdev_priv(dev); | |
816 | struct dsa_switch *ds = p->parent; | |
817 | ||
818 | if (ds->drv->get_wol) | |
819 | ds->drv->get_wol(ds, p->port, w); | |
820 | } | |
821 | ||
822 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
823 | { | |
824 | struct dsa_slave_priv *p = netdev_priv(dev); | |
825 | struct dsa_switch *ds = p->parent; | |
826 | int ret = -EOPNOTSUPP; | |
827 | ||
828 | if (ds->drv->set_wol) | |
829 | ret = ds->drv->set_wol(ds, p->port, w); | |
830 | ||
831 | return ret; | |
832 | } | |
833 | ||
7905288f FF |
834 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
835 | { | |
836 | struct dsa_slave_priv *p = netdev_priv(dev); | |
837 | struct dsa_switch *ds = p->parent; | |
838 | int ret; | |
839 | ||
840 | if (!ds->drv->set_eee) | |
841 | return -EOPNOTSUPP; | |
842 | ||
843 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
844 | if (ret) | |
845 | return ret; | |
846 | ||
847 | if (p->phy) | |
848 | ret = phy_ethtool_set_eee(p->phy, e); | |
849 | ||
850 | return ret; | |
851 | } | |
852 | ||
853 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
854 | { | |
855 | struct dsa_slave_priv *p = netdev_priv(dev); | |
856 | struct dsa_switch *ds = p->parent; | |
857 | int ret; | |
858 | ||
859 | if (!ds->drv->get_eee) | |
860 | return -EOPNOTSUPP; | |
861 | ||
862 | ret = ds->drv->get_eee(ds, p->port, e); | |
863 | if (ret) | |
864 | return ret; | |
865 | ||
866 | if (p->phy) | |
867 | ret = phy_ethtool_get_eee(p->phy, e); | |
868 | ||
869 | return ret; | |
870 | } | |
871 | ||
04ff53f9 FF |
872 | #ifdef CONFIG_NET_POLL_CONTROLLER |
873 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
874 | struct netpoll_info *ni) | |
875 | { | |
876 | struct dsa_slave_priv *p = netdev_priv(dev); | |
877 | struct dsa_switch *ds = p->parent; | |
878 | struct net_device *master = ds->dst->master_netdev; | |
879 | struct netpoll *netpoll; | |
880 | int err = 0; | |
881 | ||
882 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
883 | if (!netpoll) | |
884 | return -ENOMEM; | |
885 | ||
886 | err = __netpoll_setup(netpoll, master); | |
887 | if (err) { | |
888 | kfree(netpoll); | |
889 | goto out; | |
890 | } | |
891 | ||
892 | p->netpoll = netpoll; | |
893 | out: | |
894 | return err; | |
895 | } | |
896 | ||
897 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
898 | { | |
899 | struct dsa_slave_priv *p = netdev_priv(dev); | |
900 | struct netpoll *netpoll = p->netpoll; | |
901 | ||
902 | if (!netpoll) | |
903 | return; | |
904 | ||
905 | p->netpoll = NULL; | |
906 | ||
907 | __netpoll_free_async(netpoll); | |
908 | } | |
909 | ||
910 | static void dsa_slave_poll_controller(struct net_device *dev) | |
911 | { | |
912 | } | |
913 | #endif | |
914 | ||
91da11f8 LB |
915 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
916 | .get_settings = dsa_slave_get_settings, | |
917 | .set_settings = dsa_slave_set_settings, | |
918 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
919 | .get_regs_len = dsa_slave_get_regs_len, |
920 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
921 | .nway_reset = dsa_slave_nway_reset, |
922 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
923 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
924 | .get_eeprom = dsa_slave_get_eeprom, | |
925 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
926 | .get_strings = dsa_slave_get_strings, |
927 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
928 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
929 | .set_wol = dsa_slave_set_wol, |
930 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
931 | .set_eee = dsa_slave_set_eee, |
932 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
933 | }; |
934 | ||
3e8a72d1 | 935 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
936 | .ndo_open = dsa_slave_open, |
937 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 938 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
939 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
940 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 941 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
942 | .ndo_fdb_add = switchdev_port_fdb_add, |
943 | .ndo_fdb_del = switchdev_port_fdb_del, | |
944 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 945 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 946 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
947 | #ifdef CONFIG_NET_POLL_CONTROLLER |
948 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
949 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
950 | .ndo_poll_controller = dsa_slave_poll_controller, | |
951 | #endif | |
11149536 VD |
952 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
953 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
954 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
98237d43 SF |
955 | }; |
956 | ||
9d47c0a2 | 957 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 958 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 959 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
960 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
961 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
962 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 963 | }; |
91da11f8 | 964 | |
0d8bcdd3 FF |
965 | static void dsa_slave_adjust_link(struct net_device *dev) |
966 | { | |
967 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 968 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
969 | unsigned int status_changed = 0; |
970 | ||
971 | if (p->old_link != p->phy->link) { | |
972 | status_changed = 1; | |
973 | p->old_link = p->phy->link; | |
974 | } | |
975 | ||
976 | if (p->old_duplex != p->phy->duplex) { | |
977 | status_changed = 1; | |
978 | p->old_duplex = p->phy->duplex; | |
979 | } | |
980 | ||
981 | if (p->old_pause != p->phy->pause) { | |
982 | status_changed = 1; | |
983 | p->old_pause = p->phy->pause; | |
984 | } | |
985 | ||
ec9436ba FF |
986 | if (ds->drv->adjust_link && status_changed) |
987 | ds->drv->adjust_link(ds, p->port, p->phy); | |
988 | ||
0d8bcdd3 FF |
989 | if (status_changed) |
990 | phy_print_status(p->phy); | |
991 | } | |
992 | ||
ce31b31c FF |
993 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
994 | struct fixed_phy_status *status) | |
995 | { | |
996 | struct dsa_slave_priv *p = netdev_priv(dev); | |
997 | struct dsa_switch *ds = p->parent; | |
998 | ||
999 | if (ds->drv->fixed_link_update) | |
1000 | ds->drv->fixed_link_update(ds, p->port, status); | |
1001 | ||
1002 | return 0; | |
1003 | } | |
1004 | ||
91da11f8 | 1005 | /* slave device setup *******************************************************/ |
c305c165 | 1006 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1007 | struct net_device *slave_dev, |
1008 | int addr) | |
c305c165 FF |
1009 | { |
1010 | struct dsa_switch *ds = p->parent; | |
1011 | ||
cd28a1a9 | 1012 | p->phy = ds->slave_mii_bus->phy_map[addr]; |
c305c165 FF |
1013 | if (!p->phy) |
1014 | return -ENODEV; | |
1015 | ||
1016 | /* Use already configured phy mode */ | |
211c504a FF |
1017 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1018 | p->phy_interface = p->phy->interface; | |
c305c165 FF |
1019 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1020 | p->phy_interface); | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
9697f1cd | 1025 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1026 | struct net_device *slave_dev) |
1027 | { | |
1028 | struct dsa_switch *ds = p->parent; | |
1029 | struct dsa_chip_data *cd = ds->pd; | |
1030 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 1031 | bool phy_is_fixed = false; |
6819563e | 1032 | u32 phy_flags = 0; |
19334920 | 1033 | int mode, ret; |
0d8bcdd3 FF |
1034 | |
1035 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
1036 | mode = of_get_phy_mode(port_dn); |
1037 | if (mode < 0) | |
1038 | mode = PHY_INTERFACE_MODE_NA; | |
1039 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1040 | |
1041 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
1042 | if (of_phy_is_fixed_link(port_dn)) { | |
1043 | /* In the case of a fixed PHY, the DT node associated | |
1044 | * to the fixed PHY is the Port DT node | |
1045 | */ | |
1046 | ret = of_phy_register_fixed_link(port_dn); | |
1047 | if (ret) { | |
a2ae6007 | 1048 | netdev_err(slave_dev, "failed to register fixed PHY\n"); |
9697f1cd | 1049 | return ret; |
0d8bcdd3 | 1050 | } |
ce31b31c | 1051 | phy_is_fixed = true; |
0d8bcdd3 FF |
1052 | phy_dn = port_dn; |
1053 | } | |
1054 | ||
6819563e FF |
1055 | if (ds->drv->get_phy_flags) |
1056 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
1057 | ||
cd28a1a9 FF |
1058 | if (phy_dn) { |
1059 | ret = of_mdio_parse_addr(&slave_dev->dev, phy_dn); | |
1060 | /* If this PHY address is part of phys_mii_mask, which means | |
1061 | * that we need to divert reads and writes to/from it, then we | |
1062 | * want to bind this device using the slave MII bus created by | |
1063 | * DSA to make that happen. | |
1064 | */ | |
96026d05 FF |
1065 | if (!phy_is_fixed && ret >= 0 && |
1066 | (ds->phys_mii_mask & (1 << ret))) { | |
cd28a1a9 FF |
1067 | ret = dsa_slave_phy_connect(p, slave_dev, ret); |
1068 | if (ret) | |
1069 | return ret; | |
1070 | } else { | |
1071 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1072 | dsa_slave_adjust_link, | |
1073 | phy_flags, | |
1074 | p->phy_interface); | |
1075 | } | |
1076 | } | |
0d8bcdd3 | 1077 | |
ce31b31c FF |
1078 | if (p->phy && phy_is_fixed) |
1079 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1080 | ||
0d8bcdd3 FF |
1081 | /* We could not connect to a designated PHY, so use the switch internal |
1082 | * MDIO bus instead | |
1083 | */ | |
b31f65fb | 1084 | if (!p->phy) { |
cd28a1a9 | 1085 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
c305c165 FF |
1086 | if (ret) |
1087 | return ret; | |
b31f65fb | 1088 | } else { |
a2ae6007 JP |
1089 | netdev_info(slave_dev, "attached PHY at address %d [%s]\n", |
1090 | p->phy->addr, p->phy->drv->name); | |
b31f65fb | 1091 | } |
9697f1cd FF |
1092 | |
1093 | return 0; | |
0d8bcdd3 FF |
1094 | } |
1095 | ||
448b4482 AL |
1096 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1097 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1098 | struct netdev_queue *txq, | |
1099 | void *_unused) | |
1100 | { | |
1101 | lockdep_set_class(&txq->_xmit_lock, | |
1102 | &dsa_slave_netdev_xmit_lock_key); | |
1103 | } | |
1104 | ||
24462549 FF |
1105 | int dsa_slave_suspend(struct net_device *slave_dev) |
1106 | { | |
1107 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1108 | ||
24462549 FF |
1109 | if (p->phy) { |
1110 | phy_stop(p->phy); | |
1111 | p->old_pause = -1; | |
1112 | p->old_link = -1; | |
1113 | p->old_duplex = -1; | |
1114 | phy_suspend(p->phy); | |
1115 | } | |
1116 | ||
1117 | return 0; | |
1118 | } | |
1119 | ||
1120 | int dsa_slave_resume(struct net_device *slave_dev) | |
1121 | { | |
1122 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1123 | ||
1124 | netif_device_attach(slave_dev); | |
1125 | ||
1126 | if (p->phy) { | |
1127 | phy_resume(p->phy); | |
1128 | phy_start(p->phy); | |
1129 | } | |
1130 | ||
1131 | return 0; | |
1132 | } | |
1133 | ||
d87d6f44 GR |
1134 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
1135 | int port, char *name) | |
91da11f8 | 1136 | { |
e84665c9 | 1137 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
1138 | struct net_device *slave_dev; |
1139 | struct dsa_slave_priv *p; | |
1140 | int ret; | |
1141 | ||
c835a677 TG |
1142 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1143 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1144 | if (slave_dev == NULL) |
d87d6f44 | 1145 | return -ENOMEM; |
91da11f8 LB |
1146 | |
1147 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1148 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1149 | eth_hw_addr_inherit(slave_dev, master); |
91da11f8 | 1150 | slave_dev->tx_queue_len = 0; |
3e8a72d1 | 1151 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1152 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
d442ad4a | 1153 | |
448b4482 AL |
1154 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1155 | NULL); | |
1156 | ||
5075314e AD |
1157 | SET_NETDEV_DEV(slave_dev, parent); |
1158 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
1159 | slave_dev->vlan_features = master->vlan_features; | |
1160 | ||
1161 | p = netdev_priv(slave_dev); | |
1162 | p->dev = slave_dev; | |
1163 | p->parent = ds; | |
1164 | p->port = port; | |
1165 | ||
e84665c9 | 1166 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1167 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1168 | case DSA_TAG_PROTO_DSA: |
5075314e | 1169 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1170 | break; |
1171 | #endif | |
91da11f8 | 1172 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1173 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1174 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1175 | break; |
396138f0 LB |
1176 | #endif |
1177 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1178 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1179 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1180 | break; |
5037d532 FF |
1181 | #endif |
1182 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1183 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1184 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1185 | break; |
91da11f8 LB |
1186 | #endif |
1187 | default: | |
5075314e | 1188 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1189 | break; |
91da11f8 | 1190 | } |
d442ad4a | 1191 | |
0d8bcdd3 FF |
1192 | p->old_pause = -1; |
1193 | p->old_link = -1; | |
1194 | p->old_duplex = -1; | |
1195 | ||
9697f1cd FF |
1196 | ret = dsa_slave_phy_setup(p, slave_dev); |
1197 | if (ret) { | |
1198 | free_netdev(slave_dev); | |
d87d6f44 | 1199 | return ret; |
9697f1cd | 1200 | } |
91da11f8 | 1201 | |
d87d6f44 | 1202 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1203 | ret = register_netdev(slave_dev); |
1204 | if (ret) { | |
a2ae6007 JP |
1205 | netdev_err(master, "error %d registering interface %s\n", |
1206 | ret, slave_dev->name); | |
9697f1cd | 1207 | phy_disconnect(p->phy); |
d87d6f44 | 1208 | ds->ports[port] = NULL; |
91da11f8 | 1209 | free_netdev(slave_dev); |
d87d6f44 | 1210 | return ret; |
91da11f8 LB |
1211 | } |
1212 | ||
1213 | netif_carrier_off(slave_dev); | |
1214 | ||
d87d6f44 | 1215 | return 0; |
91da11f8 | 1216 | } |
b73adef6 FF |
1217 | |
1218 | static bool dsa_slave_dev_check(struct net_device *dev) | |
1219 | { | |
1220 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1221 | } | |
1222 | ||
1223 | static int dsa_slave_master_changed(struct net_device *dev) | |
1224 | { | |
1225 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
b06b107a | 1226 | struct dsa_slave_priv *p = netdev_priv(dev); |
b73adef6 FF |
1227 | int err = 0; |
1228 | ||
1229 | if (master && master->rtnl_link_ops && | |
1230 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
1231 | err = dsa_slave_bridge_port_join(dev, master); | |
b06b107a | 1232 | else if (dsa_port_is_bridged(p)) |
b73adef6 FF |
1233 | err = dsa_slave_bridge_port_leave(dev); |
1234 | ||
1235 | return err; | |
1236 | } | |
1237 | ||
1238 | int dsa_slave_netdevice_event(struct notifier_block *unused, | |
1239 | unsigned long event, void *ptr) | |
1240 | { | |
1241 | struct net_device *dev; | |
1242 | int err = 0; | |
1243 | ||
1244 | switch (event) { | |
1245 | case NETDEV_CHANGEUPPER: | |
1246 | dev = netdev_notifier_info_to_dev(ptr); | |
1247 | if (!dsa_slave_dev_check(dev)) | |
1248 | goto out; | |
1249 | ||
1250 | err = dsa_slave_master_changed(dev); | |
1251 | if (err) | |
1252 | netdev_warn(dev, "failed to reflect master change\n"); | |
1253 | ||
1254 | break; | |
1255 | } | |
1256 | ||
1257 | out: | |
1258 | return NOTIFY_DONE; | |
1259 | } |