]>
Commit | Line | Data |
---|---|---|
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, | |
ab069002 | 245 | const struct switchdev_obj_vlan *vlan, |
f8db8348 | 246 | struct switchdev_trans *trans) |
11149536 | 247 | { |
11149536 VD |
248 | struct dsa_slave_priv *p = netdev_priv(dev); |
249 | struct dsa_switch *ds = p->parent; | |
250 | u16 vid; | |
251 | int err; | |
252 | ||
79a62eb2 | 253 | if (switchdev_trans_ph_prepare(trans)) { |
11149536 VD |
254 | if (!ds->drv->port_vlan_add || !ds->drv->port_pvid_set) |
255 | return -EOPNOTSUPP; | |
256 | ||
257 | /* If the requested port doesn't belong to the same bridge as | |
258 | * the VLAN members, fallback to software VLAN (hopefully). | |
259 | */ | |
260 | err = dsa_bridge_check_vlan_range(ds, p->bridge_dev, | |
261 | vlan->vid_begin, | |
262 | vlan->vid_end); | |
263 | if (err) | |
264 | return err; | |
79a62eb2 | 265 | } else { |
11149536 VD |
266 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { |
267 | err = ds->drv->port_vlan_add(ds, p->port, vid, | |
268 | vlan->flags & | |
269 | BRIDGE_VLAN_INFO_UNTAGGED); | |
270 | if (!err && vlan->flags & BRIDGE_VLAN_INFO_PVID) | |
271 | err = ds->drv->port_pvid_set(ds, p->port, vid); | |
272 | if (err) | |
273 | return err; | |
274 | } | |
11149536 VD |
275 | } |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
ab069002 | 281 | const struct switchdev_obj_vlan *vlan) |
11149536 | 282 | { |
11149536 VD |
283 | struct dsa_slave_priv *p = netdev_priv(dev); |
284 | struct dsa_switch *ds = p->parent; | |
285 | u16 vid; | |
286 | int err; | |
287 | ||
288 | if (!ds->drv->port_vlan_del) | |
289 | return -EOPNOTSUPP; | |
290 | ||
291 | for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { | |
292 | err = ds->drv->port_vlan_del(ds, p->port, vid); | |
293 | if (err) | |
294 | return err; | |
295 | } | |
296 | ||
297 | return 0; | |
298 | } | |
299 | ||
300 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
25f07adc VD |
301 | struct switchdev_obj_vlan *vlan, |
302 | int (*cb)(void *obj)) | |
11149536 | 303 | { |
11149536 VD |
304 | struct dsa_slave_priv *p = netdev_priv(dev); |
305 | struct dsa_switch *ds = p->parent; | |
306 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
307 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
308 | u16 pvid, vid = 0; | |
309 | int err; | |
310 | ||
311 | if (!ds->drv->vlan_getnext || !ds->drv->port_pvid_get) | |
312 | return -EOPNOTSUPP; | |
313 | ||
314 | err = ds->drv->port_pvid_get(ds, p->port, &pvid); | |
315 | if (err) | |
316 | return err; | |
317 | ||
318 | for (;;) { | |
319 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
320 | if (err) | |
321 | break; | |
322 | ||
323 | if (!test_bit(p->port, members)) | |
324 | continue; | |
325 | ||
326 | memset(vlan, 0, sizeof(*vlan)); | |
327 | vlan->vid_begin = vlan->vid_end = vid; | |
328 | ||
329 | if (vid == pvid) | |
330 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
331 | ||
332 | if (test_bit(p->port, untagged)) | |
333 | vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED; | |
334 | ||
25f07adc | 335 | err = cb(vlan); |
11149536 VD |
336 | if (err) |
337 | break; | |
338 | } | |
339 | ||
340 | return err == -ENOENT ? 0 : err; | |
341 | } | |
342 | ||
ba14d9eb | 343 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
ab069002 | 344 | const struct switchdev_obj_fdb *fdb, |
f8db8348 | 345 | struct switchdev_trans *trans) |
cdf09697 DM |
346 | { |
347 | struct dsa_slave_priv *p = netdev_priv(dev); | |
348 | struct dsa_switch *ds = p->parent; | |
349 | int ret = -EOPNOTSUPP; | |
350 | ||
79a62eb2 | 351 | if (switchdev_trans_ph_prepare(trans)) |
ba14d9eb | 352 | ret = ds->drv->port_fdb_add ? 0 : -EOPNOTSUPP; |
79a62eb2 | 353 | else |
ba14d9eb | 354 | ret = ds->drv->port_fdb_add(ds, p->port, fdb->addr, fdb->vid); |
cdf09697 DM |
355 | |
356 | return ret; | |
357 | } | |
358 | ||
ba14d9eb | 359 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
ab069002 | 360 | const struct switchdev_obj_fdb *fdb) |
cdf09697 DM |
361 | { |
362 | struct dsa_slave_priv *p = netdev_priv(dev); | |
363 | struct dsa_switch *ds = p->parent; | |
364 | int ret = -EOPNOTSUPP; | |
365 | ||
2a778e1b | 366 | if (ds->drv->port_fdb_del) |
ba14d9eb | 367 | ret = ds->drv->port_fdb_del(ds, p->port, fdb->addr, fdb->vid); |
cdf09697 DM |
368 | |
369 | return ret; | |
370 | } | |
371 | ||
ba14d9eb | 372 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
25f07adc VD |
373 | struct switchdev_obj_fdb *fdb, |
374 | int (*cb)(void *obj)) | |
cdf09697 DM |
375 | { |
376 | struct dsa_slave_priv *p = netdev_priv(dev); | |
377 | struct dsa_switch *ds = p->parent; | |
378 | unsigned char addr[ETH_ALEN] = { 0 }; | |
2a778e1b | 379 | u16 vid = 0; |
cdf09697 DM |
380 | int ret; |
381 | ||
2a778e1b | 382 | if (!ds->drv->port_fdb_getnext) |
cdf09697 DM |
383 | return -EOPNOTSUPP; |
384 | ||
ba14d9eb | 385 | for (;;) { |
cdf09697 DM |
386 | bool is_static; |
387 | ||
2a778e1b VD |
388 | ret = ds->drv->port_fdb_getnext(ds, p->port, addr, &vid, |
389 | &is_static); | |
cdf09697 DM |
390 | if (ret < 0) |
391 | break; | |
392 | ||
25f07adc VD |
393 | fdb->addr = addr; |
394 | fdb->vid = vid; | |
395 | fdb->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
cdf09697 | 396 | |
25f07adc | 397 | ret = cb(fdb); |
cdf09697 DM |
398 | if (ret < 0) |
399 | break; | |
400 | } | |
401 | ||
ba14d9eb | 402 | return ret == -ENOENT ? 0 : ret; |
cdf09697 DM |
403 | } |
404 | ||
91da11f8 LB |
405 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
406 | { | |
407 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
408 | |
409 | if (p->phy != NULL) | |
28b04113 | 410 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
411 | |
412 | return -EOPNOTSUPP; | |
413 | } | |
414 | ||
b73adef6 FF |
415 | /* Return a bitmask of all ports being currently bridged within a given bridge |
416 | * device. Note that on leave, the mask will still return the bitmask of ports | |
417 | * currently bridged, prior to port removal, and this is exactly what we want. | |
418 | */ | |
419 | static u32 dsa_slave_br_port_mask(struct dsa_switch *ds, | |
420 | struct net_device *bridge) | |
421 | { | |
422 | struct dsa_slave_priv *p; | |
423 | unsigned int port; | |
424 | u32 mask = 0; | |
425 | ||
426 | for (port = 0; port < DSA_MAX_PORTS; port++) { | |
d79d2107 | 427 | if (!dsa_is_port_initialized(ds, port)) |
b73adef6 FF |
428 | continue; |
429 | ||
430 | p = netdev_priv(ds->ports[port]); | |
431 | ||
432 | if (ds->ports[port]->priv_flags & IFF_BRIDGE_PORT && | |
433 | p->bridge_dev == bridge) | |
434 | mask |= 1 << port; | |
435 | } | |
436 | ||
437 | return mask; | |
438 | } | |
439 | ||
440 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) | |
441 | { | |
442 | struct dsa_slave_priv *p = netdev_priv(dev); | |
443 | struct dsa_switch *ds = p->parent; | |
444 | int ret = -EOPNOTSUPP; | |
445 | ||
446 | if (ds->drv->port_stp_update) | |
447 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
448 | ||
449 | return ret; | |
450 | } | |
451 | ||
35636062 | 452 | static int dsa_slave_port_attr_set(struct net_device *dev, |
7ea6eb3f JP |
453 | struct switchdev_attr *attr, |
454 | struct switchdev_trans *trans) | |
35636062 SF |
455 | { |
456 | int ret = 0; | |
457 | ||
458 | switch (attr->id) { | |
459 | case SWITCHDEV_ATTR_PORT_STP_STATE: | |
79a62eb2 | 460 | if (switchdev_trans_ph_commit(trans)) |
42275bd8 | 461 | ret = dsa_slave_stp_update(dev, attr->u.stp_state); |
35636062 SF |
462 | break; |
463 | default: | |
464 | ret = -EOPNOTSUPP; | |
465 | break; | |
466 | } | |
467 | ||
468 | return ret; | |
469 | } | |
470 | ||
ba14d9eb | 471 | static int dsa_slave_port_obj_add(struct net_device *dev, |
ab069002 | 472 | enum switchdev_obj_id id, const void *obj, |
7ea6eb3f | 473 | struct switchdev_trans *trans) |
ba14d9eb VD |
474 | { |
475 | int err; | |
476 | ||
477 | /* For the prepare phase, ensure the full set of changes is feasable in | |
478 | * one go in order to signal a failure properly. If an operation is not | |
479 | * supported, return -EOPNOTSUPP. | |
480 | */ | |
481 | ||
ab069002 | 482 | switch (id) { |
ba14d9eb | 483 | case SWITCHDEV_OBJ_PORT_FDB: |
f8db8348 | 484 | err = dsa_slave_port_fdb_add(dev, obj, trans); |
ba14d9eb | 485 | break; |
11149536 | 486 | case SWITCHDEV_OBJ_PORT_VLAN: |
f8db8348 | 487 | err = dsa_slave_port_vlan_add(dev, obj, trans); |
11149536 | 488 | break; |
ba14d9eb VD |
489 | default: |
490 | err = -EOPNOTSUPP; | |
491 | break; | |
492 | } | |
493 | ||
494 | return err; | |
495 | } | |
496 | ||
497 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
ab069002 | 498 | enum switchdev_obj_id id, const void *obj) |
ba14d9eb VD |
499 | { |
500 | int err; | |
501 | ||
ab069002 | 502 | switch (id) { |
ba14d9eb VD |
503 | case SWITCHDEV_OBJ_PORT_FDB: |
504 | err = dsa_slave_port_fdb_del(dev, obj); | |
505 | break; | |
11149536 VD |
506 | case SWITCHDEV_OBJ_PORT_VLAN: |
507 | err = dsa_slave_port_vlan_del(dev, obj); | |
508 | break; | |
ba14d9eb VD |
509 | default: |
510 | err = -EOPNOTSUPP; | |
511 | break; | |
512 | } | |
513 | ||
514 | return err; | |
515 | } | |
516 | ||
517 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
25f07adc VD |
518 | enum switchdev_obj_id id, void *obj, |
519 | int (*cb)(void *obj)) | |
ba14d9eb VD |
520 | { |
521 | int err; | |
522 | ||
25f07adc | 523 | switch (id) { |
ba14d9eb | 524 | case SWITCHDEV_OBJ_PORT_FDB: |
25f07adc | 525 | err = dsa_slave_port_fdb_dump(dev, obj, cb); |
ba14d9eb | 526 | break; |
11149536 | 527 | case SWITCHDEV_OBJ_PORT_VLAN: |
25f07adc | 528 | err = dsa_slave_port_vlan_dump(dev, obj, cb); |
11149536 | 529 | break; |
ba14d9eb VD |
530 | default: |
531 | err = -EOPNOTSUPP; | |
532 | break; | |
533 | } | |
534 | ||
535 | return err; | |
536 | } | |
537 | ||
b73adef6 FF |
538 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
539 | struct net_device *br) | |
540 | { | |
541 | struct dsa_slave_priv *p = netdev_priv(dev); | |
542 | struct dsa_switch *ds = p->parent; | |
543 | int ret = -EOPNOTSUPP; | |
544 | ||
545 | p->bridge_dev = br; | |
546 | ||
547 | if (ds->drv->port_join_bridge) | |
548 | ret = ds->drv->port_join_bridge(ds, p->port, | |
549 | dsa_slave_br_port_mask(ds, br)); | |
550 | ||
551 | return ret; | |
552 | } | |
553 | ||
554 | static int dsa_slave_bridge_port_leave(struct net_device *dev) | |
555 | { | |
556 | struct dsa_slave_priv *p = netdev_priv(dev); | |
557 | struct dsa_switch *ds = p->parent; | |
558 | int ret = -EOPNOTSUPP; | |
559 | ||
560 | ||
561 | if (ds->drv->port_leave_bridge) | |
562 | ret = ds->drv->port_leave_bridge(ds, p->port, | |
563 | dsa_slave_br_port_mask(ds, p->bridge_dev)); | |
564 | ||
565 | p->bridge_dev = NULL; | |
566 | ||
567 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
568 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
569 | */ | |
570 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
571 | ||
572 | return ret; | |
573 | } | |
574 | ||
f8e20a9f SF |
575 | static int dsa_slave_port_attr_get(struct net_device *dev, |
576 | struct switchdev_attr *attr) | |
b73adef6 FF |
577 | { |
578 | struct dsa_slave_priv *p = netdev_priv(dev); | |
579 | struct dsa_switch *ds = p->parent; | |
580 | ||
f8e20a9f SF |
581 | switch (attr->id) { |
582 | case SWITCHDEV_ATTR_PORT_PARENT_ID: | |
42275bd8 SF |
583 | attr->u.ppid.id_len = sizeof(ds->index); |
584 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
585 | break; |
586 | default: | |
587 | return -EOPNOTSUPP; | |
588 | } | |
b73adef6 FF |
589 | |
590 | return 0; | |
591 | } | |
592 | ||
04ff53f9 FF |
593 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
594 | struct sk_buff *skb) | |
595 | { | |
596 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
597 | if (p->netpoll) | |
598 | netpoll_send_skb(p->netpoll, skb); | |
599 | #else | |
600 | BUG(); | |
601 | #endif | |
602 | return NETDEV_TX_OK; | |
603 | } | |
604 | ||
3e8a72d1 FF |
605 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
606 | { | |
607 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 608 | struct sk_buff *nskb; |
3e8a72d1 | 609 | |
4ed70ce9 FF |
610 | dev->stats.tx_packets++; |
611 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 612 | |
4ed70ce9 FF |
613 | /* Transmit function may have to reallocate the original SKB */ |
614 | nskb = p->xmit(skb, dev); | |
615 | if (!nskb) | |
616 | return NETDEV_TX_OK; | |
5aed85ce | 617 | |
04ff53f9 FF |
618 | /* SKB for netpoll still need to be mangled with the protocol-specific |
619 | * tag to be successfully transmitted | |
620 | */ | |
621 | if (unlikely(netpoll_tx_running(dev))) | |
622 | return dsa_netpoll_send_skb(p, nskb); | |
623 | ||
4ed70ce9 FF |
624 | /* Queue the SKB for transmission on the parent interface, but |
625 | * do not modify its EtherType | |
626 | */ | |
627 | nskb->dev = p->parent->dst->master_netdev; | |
628 | dev_queue_xmit(nskb); | |
5aed85ce FF |
629 | |
630 | return NETDEV_TX_OK; | |
631 | } | |
632 | ||
4ed70ce9 FF |
633 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
634 | struct net_device *dev) | |
635 | { | |
636 | /* Just return the original SKB */ | |
637 | return skb; | |
638 | } | |
639 | ||
91da11f8 LB |
640 | |
641 | /* ethtool operations *******************************************************/ | |
642 | static int | |
643 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
644 | { | |
645 | struct dsa_slave_priv *p = netdev_priv(dev); | |
646 | int err; | |
647 | ||
648 | err = -EOPNOTSUPP; | |
649 | if (p->phy != NULL) { | |
650 | err = phy_read_status(p->phy); | |
651 | if (err == 0) | |
652 | err = phy_ethtool_gset(p->phy, cmd); | |
653 | } | |
654 | ||
655 | return err; | |
656 | } | |
657 | ||
658 | static int | |
659 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
660 | { | |
661 | struct dsa_slave_priv *p = netdev_priv(dev); | |
662 | ||
663 | if (p->phy != NULL) | |
664 | return phy_ethtool_sset(p->phy, cmd); | |
665 | ||
666 | return -EOPNOTSUPP; | |
667 | } | |
668 | ||
669 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
670 | struct ethtool_drvinfo *drvinfo) | |
671 | { | |
7826d43f JP |
672 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
673 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
674 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
675 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
676 | } |
677 | ||
3d762a0f GR |
678 | static int dsa_slave_get_regs_len(struct net_device *dev) |
679 | { | |
680 | struct dsa_slave_priv *p = netdev_priv(dev); | |
681 | struct dsa_switch *ds = p->parent; | |
682 | ||
683 | if (ds->drv->get_regs_len) | |
684 | return ds->drv->get_regs_len(ds, p->port); | |
685 | ||
686 | return -EOPNOTSUPP; | |
687 | } | |
688 | ||
689 | static void | |
690 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
691 | { | |
692 | struct dsa_slave_priv *p = netdev_priv(dev); | |
693 | struct dsa_switch *ds = p->parent; | |
694 | ||
695 | if (ds->drv->get_regs) | |
696 | ds->drv->get_regs(ds, p->port, regs, _p); | |
697 | } | |
698 | ||
91da11f8 LB |
699 | static int dsa_slave_nway_reset(struct net_device *dev) |
700 | { | |
701 | struct dsa_slave_priv *p = netdev_priv(dev); | |
702 | ||
703 | if (p->phy != NULL) | |
704 | return genphy_restart_aneg(p->phy); | |
705 | ||
706 | return -EOPNOTSUPP; | |
707 | } | |
708 | ||
709 | static u32 dsa_slave_get_link(struct net_device *dev) | |
710 | { | |
711 | struct dsa_slave_priv *p = netdev_priv(dev); | |
712 | ||
713 | if (p->phy != NULL) { | |
714 | genphy_update_link(p->phy); | |
715 | return p->phy->link; | |
716 | } | |
717 | ||
718 | return -EOPNOTSUPP; | |
719 | } | |
720 | ||
6793abb4 GR |
721 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
722 | { | |
723 | struct dsa_slave_priv *p = netdev_priv(dev); | |
724 | struct dsa_switch *ds = p->parent; | |
725 | ||
726 | if (ds->pd->eeprom_len) | |
727 | return ds->pd->eeprom_len; | |
728 | ||
729 | if (ds->drv->get_eeprom_len) | |
730 | return ds->drv->get_eeprom_len(ds); | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
735 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
736 | struct ethtool_eeprom *eeprom, u8 *data) | |
737 | { | |
738 | struct dsa_slave_priv *p = netdev_priv(dev); | |
739 | struct dsa_switch *ds = p->parent; | |
740 | ||
741 | if (ds->drv->get_eeprom) | |
742 | return ds->drv->get_eeprom(ds, eeprom, data); | |
743 | ||
744 | return -EOPNOTSUPP; | |
745 | } | |
746 | ||
747 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
748 | struct ethtool_eeprom *eeprom, u8 *data) | |
749 | { | |
750 | struct dsa_slave_priv *p = netdev_priv(dev); | |
751 | struct dsa_switch *ds = p->parent; | |
752 | ||
753 | if (ds->drv->set_eeprom) | |
754 | return ds->drv->set_eeprom(ds, eeprom, data); | |
755 | ||
756 | return -EOPNOTSUPP; | |
757 | } | |
758 | ||
91da11f8 LB |
759 | static void dsa_slave_get_strings(struct net_device *dev, |
760 | uint32_t stringset, uint8_t *data) | |
761 | { | |
762 | struct dsa_slave_priv *p = netdev_priv(dev); | |
763 | struct dsa_switch *ds = p->parent; | |
764 | ||
765 | if (stringset == ETH_SS_STATS) { | |
766 | int len = ETH_GSTRING_LEN; | |
767 | ||
768 | strncpy(data, "tx_packets", len); | |
769 | strncpy(data + len, "tx_bytes", len); | |
770 | strncpy(data + 2 * len, "rx_packets", len); | |
771 | strncpy(data + 3 * len, "rx_bytes", len); | |
772 | if (ds->drv->get_strings != NULL) | |
773 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
774 | } | |
775 | } | |
776 | ||
777 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
778 | struct ethtool_stats *stats, | |
779 | uint64_t *data) | |
780 | { | |
781 | struct dsa_slave_priv *p = netdev_priv(dev); | |
782 | struct dsa_switch *ds = p->parent; | |
783 | ||
784 | data[0] = p->dev->stats.tx_packets; | |
785 | data[1] = p->dev->stats.tx_bytes; | |
786 | data[2] = p->dev->stats.rx_packets; | |
787 | data[3] = p->dev->stats.rx_bytes; | |
788 | if (ds->drv->get_ethtool_stats != NULL) | |
789 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
790 | } | |
791 | ||
792 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
793 | { | |
794 | struct dsa_slave_priv *p = netdev_priv(dev); | |
795 | struct dsa_switch *ds = p->parent; | |
796 | ||
797 | if (sset == ETH_SS_STATS) { | |
798 | int count; | |
799 | ||
800 | count = 4; | |
801 | if (ds->drv->get_sset_count != NULL) | |
802 | count += ds->drv->get_sset_count(ds); | |
803 | ||
804 | return count; | |
805 | } | |
806 | ||
807 | return -EOPNOTSUPP; | |
808 | } | |
809 | ||
19e57c4e FF |
810 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
811 | { | |
812 | struct dsa_slave_priv *p = netdev_priv(dev); | |
813 | struct dsa_switch *ds = p->parent; | |
814 | ||
815 | if (ds->drv->get_wol) | |
816 | ds->drv->get_wol(ds, p->port, w); | |
817 | } | |
818 | ||
819 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
820 | { | |
821 | struct dsa_slave_priv *p = netdev_priv(dev); | |
822 | struct dsa_switch *ds = p->parent; | |
823 | int ret = -EOPNOTSUPP; | |
824 | ||
825 | if (ds->drv->set_wol) | |
826 | ret = ds->drv->set_wol(ds, p->port, w); | |
827 | ||
828 | return ret; | |
829 | } | |
830 | ||
7905288f FF |
831 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
832 | { | |
833 | struct dsa_slave_priv *p = netdev_priv(dev); | |
834 | struct dsa_switch *ds = p->parent; | |
835 | int ret; | |
836 | ||
837 | if (!ds->drv->set_eee) | |
838 | return -EOPNOTSUPP; | |
839 | ||
840 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
841 | if (ret) | |
842 | return ret; | |
843 | ||
844 | if (p->phy) | |
845 | ret = phy_ethtool_set_eee(p->phy, e); | |
846 | ||
847 | return ret; | |
848 | } | |
849 | ||
850 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
851 | { | |
852 | struct dsa_slave_priv *p = netdev_priv(dev); | |
853 | struct dsa_switch *ds = p->parent; | |
854 | int ret; | |
855 | ||
856 | if (!ds->drv->get_eee) | |
857 | return -EOPNOTSUPP; | |
858 | ||
859 | ret = ds->drv->get_eee(ds, p->port, e); | |
860 | if (ret) | |
861 | return ret; | |
862 | ||
863 | if (p->phy) | |
864 | ret = phy_ethtool_get_eee(p->phy, e); | |
865 | ||
866 | return ret; | |
867 | } | |
868 | ||
04ff53f9 FF |
869 | #ifdef CONFIG_NET_POLL_CONTROLLER |
870 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
871 | struct netpoll_info *ni) | |
872 | { | |
873 | struct dsa_slave_priv *p = netdev_priv(dev); | |
874 | struct dsa_switch *ds = p->parent; | |
875 | struct net_device *master = ds->dst->master_netdev; | |
876 | struct netpoll *netpoll; | |
877 | int err = 0; | |
878 | ||
879 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
880 | if (!netpoll) | |
881 | return -ENOMEM; | |
882 | ||
883 | err = __netpoll_setup(netpoll, master); | |
884 | if (err) { | |
885 | kfree(netpoll); | |
886 | goto out; | |
887 | } | |
888 | ||
889 | p->netpoll = netpoll; | |
890 | out: | |
891 | return err; | |
892 | } | |
893 | ||
894 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
895 | { | |
896 | struct dsa_slave_priv *p = netdev_priv(dev); | |
897 | struct netpoll *netpoll = p->netpoll; | |
898 | ||
899 | if (!netpoll) | |
900 | return; | |
901 | ||
902 | p->netpoll = NULL; | |
903 | ||
904 | __netpoll_free_async(netpoll); | |
905 | } | |
906 | ||
907 | static void dsa_slave_poll_controller(struct net_device *dev) | |
908 | { | |
909 | } | |
910 | #endif | |
911 | ||
91da11f8 LB |
912 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
913 | .get_settings = dsa_slave_get_settings, | |
914 | .set_settings = dsa_slave_set_settings, | |
915 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
916 | .get_regs_len = dsa_slave_get_regs_len, |
917 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
918 | .nway_reset = dsa_slave_nway_reset, |
919 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
920 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
921 | .get_eeprom = dsa_slave_get_eeprom, | |
922 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
923 | .get_strings = dsa_slave_get_strings, |
924 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
925 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
926 | .set_wol = dsa_slave_set_wol, |
927 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
928 | .set_eee = dsa_slave_set_eee, |
929 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
930 | }; |
931 | ||
3e8a72d1 | 932 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
933 | .ndo_open = dsa_slave_open, |
934 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 935 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
936 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
937 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 938 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
939 | .ndo_fdb_add = switchdev_port_fdb_add, |
940 | .ndo_fdb_del = switchdev_port_fdb_del, | |
941 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 942 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 943 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
944 | #ifdef CONFIG_NET_POLL_CONTROLLER |
945 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
946 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
947 | .ndo_poll_controller = dsa_slave_poll_controller, | |
948 | #endif | |
11149536 VD |
949 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
950 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
951 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
98237d43 SF |
952 | }; |
953 | ||
9d47c0a2 | 954 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 955 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 956 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
957 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
958 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
959 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 960 | }; |
91da11f8 | 961 | |
f37db85d FF |
962 | static struct device_type dsa_type = { |
963 | .name = "dsa", | |
964 | }; | |
965 | ||
0d8bcdd3 FF |
966 | static void dsa_slave_adjust_link(struct net_device *dev) |
967 | { | |
968 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 969 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
970 | unsigned int status_changed = 0; |
971 | ||
972 | if (p->old_link != p->phy->link) { | |
973 | status_changed = 1; | |
974 | p->old_link = p->phy->link; | |
975 | } | |
976 | ||
977 | if (p->old_duplex != p->phy->duplex) { | |
978 | status_changed = 1; | |
979 | p->old_duplex = p->phy->duplex; | |
980 | } | |
981 | ||
982 | if (p->old_pause != p->phy->pause) { | |
983 | status_changed = 1; | |
984 | p->old_pause = p->phy->pause; | |
985 | } | |
986 | ||
ec9436ba FF |
987 | if (ds->drv->adjust_link && status_changed) |
988 | ds->drv->adjust_link(ds, p->port, p->phy); | |
989 | ||
0d8bcdd3 FF |
990 | if (status_changed) |
991 | phy_print_status(p->phy); | |
992 | } | |
993 | ||
ce31b31c FF |
994 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
995 | struct fixed_phy_status *status) | |
996 | { | |
997 | struct dsa_slave_priv *p = netdev_priv(dev); | |
998 | struct dsa_switch *ds = p->parent; | |
999 | ||
1000 | if (ds->drv->fixed_link_update) | |
1001 | ds->drv->fixed_link_update(ds, p->port, status); | |
1002 | ||
1003 | return 0; | |
1004 | } | |
1005 | ||
91da11f8 | 1006 | /* slave device setup *******************************************************/ |
c305c165 | 1007 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1008 | struct net_device *slave_dev, |
1009 | int addr) | |
c305c165 FF |
1010 | { |
1011 | struct dsa_switch *ds = p->parent; | |
1012 | ||
cd28a1a9 | 1013 | p->phy = ds->slave_mii_bus->phy_map[addr]; |
c305c165 FF |
1014 | if (!p->phy) |
1015 | return -ENODEV; | |
1016 | ||
1017 | /* Use already configured phy mode */ | |
211c504a FF |
1018 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1019 | p->phy_interface = p->phy->interface; | |
c305c165 FF |
1020 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1021 | p->phy_interface); | |
1022 | ||
1023 | return 0; | |
1024 | } | |
1025 | ||
9697f1cd | 1026 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1027 | struct net_device *slave_dev) |
1028 | { | |
1029 | struct dsa_switch *ds = p->parent; | |
1030 | struct dsa_chip_data *cd = ds->pd; | |
1031 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 1032 | bool phy_is_fixed = false; |
6819563e | 1033 | u32 phy_flags = 0; |
19334920 | 1034 | int mode, ret; |
0d8bcdd3 FF |
1035 | |
1036 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
1037 | mode = of_get_phy_mode(port_dn); |
1038 | if (mode < 0) | |
1039 | mode = PHY_INTERFACE_MODE_NA; | |
1040 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1041 | |
1042 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
1043 | if (of_phy_is_fixed_link(port_dn)) { | |
1044 | /* In the case of a fixed PHY, the DT node associated | |
1045 | * to the fixed PHY is the Port DT node | |
1046 | */ | |
1047 | ret = of_phy_register_fixed_link(port_dn); | |
1048 | if (ret) { | |
a2ae6007 | 1049 | netdev_err(slave_dev, "failed to register fixed PHY\n"); |
9697f1cd | 1050 | return ret; |
0d8bcdd3 | 1051 | } |
ce31b31c | 1052 | phy_is_fixed = true; |
0d8bcdd3 FF |
1053 | phy_dn = port_dn; |
1054 | } | |
1055 | ||
6819563e FF |
1056 | if (ds->drv->get_phy_flags) |
1057 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
1058 | ||
cd28a1a9 FF |
1059 | if (phy_dn) { |
1060 | ret = of_mdio_parse_addr(&slave_dev->dev, phy_dn); | |
1061 | /* If this PHY address is part of phys_mii_mask, which means | |
1062 | * that we need to divert reads and writes to/from it, then we | |
1063 | * want to bind this device using the slave MII bus created by | |
1064 | * DSA to make that happen. | |
1065 | */ | |
96026d05 FF |
1066 | if (!phy_is_fixed && ret >= 0 && |
1067 | (ds->phys_mii_mask & (1 << ret))) { | |
cd28a1a9 FF |
1068 | ret = dsa_slave_phy_connect(p, slave_dev, ret); |
1069 | if (ret) | |
1070 | return ret; | |
1071 | } else { | |
1072 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1073 | dsa_slave_adjust_link, | |
1074 | phy_flags, | |
1075 | p->phy_interface); | |
1076 | } | |
1077 | } | |
0d8bcdd3 | 1078 | |
ce31b31c FF |
1079 | if (p->phy && phy_is_fixed) |
1080 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1081 | ||
0d8bcdd3 FF |
1082 | /* We could not connect to a designated PHY, so use the switch internal |
1083 | * MDIO bus instead | |
1084 | */ | |
b31f65fb | 1085 | if (!p->phy) { |
cd28a1a9 | 1086 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
c305c165 FF |
1087 | if (ret) |
1088 | return ret; | |
b31f65fb | 1089 | } else { |
a2ae6007 JP |
1090 | netdev_info(slave_dev, "attached PHY at address %d [%s]\n", |
1091 | p->phy->addr, p->phy->drv->name); | |
b31f65fb | 1092 | } |
9697f1cd FF |
1093 | |
1094 | return 0; | |
0d8bcdd3 FF |
1095 | } |
1096 | ||
448b4482 AL |
1097 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1098 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1099 | struct netdev_queue *txq, | |
1100 | void *_unused) | |
1101 | { | |
1102 | lockdep_set_class(&txq->_xmit_lock, | |
1103 | &dsa_slave_netdev_xmit_lock_key); | |
1104 | } | |
1105 | ||
24462549 FF |
1106 | int dsa_slave_suspend(struct net_device *slave_dev) |
1107 | { | |
1108 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1109 | ||
24462549 FF |
1110 | if (p->phy) { |
1111 | phy_stop(p->phy); | |
1112 | p->old_pause = -1; | |
1113 | p->old_link = -1; | |
1114 | p->old_duplex = -1; | |
1115 | phy_suspend(p->phy); | |
1116 | } | |
1117 | ||
1118 | return 0; | |
1119 | } | |
1120 | ||
1121 | int dsa_slave_resume(struct net_device *slave_dev) | |
1122 | { | |
1123 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1124 | ||
1125 | netif_device_attach(slave_dev); | |
1126 | ||
1127 | if (p->phy) { | |
1128 | phy_resume(p->phy); | |
1129 | phy_start(p->phy); | |
1130 | } | |
1131 | ||
1132 | return 0; | |
1133 | } | |
1134 | ||
d87d6f44 GR |
1135 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
1136 | int port, char *name) | |
91da11f8 | 1137 | { |
e84665c9 | 1138 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
1139 | struct net_device *slave_dev; |
1140 | struct dsa_slave_priv *p; | |
1141 | int ret; | |
1142 | ||
c835a677 TG |
1143 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1144 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1145 | if (slave_dev == NULL) |
d87d6f44 | 1146 | return -ENOMEM; |
91da11f8 LB |
1147 | |
1148 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1149 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1150 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1151 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1152 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1153 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
f37db85d | 1154 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1155 | |
448b4482 AL |
1156 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1157 | NULL); | |
1158 | ||
5075314e AD |
1159 | SET_NETDEV_DEV(slave_dev, parent); |
1160 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
1161 | slave_dev->vlan_features = master->vlan_features; | |
1162 | ||
1163 | p = netdev_priv(slave_dev); | |
1164 | p->dev = slave_dev; | |
1165 | p->parent = ds; | |
1166 | p->port = port; | |
1167 | ||
e84665c9 | 1168 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1169 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1170 | case DSA_TAG_PROTO_DSA: |
5075314e | 1171 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1172 | break; |
1173 | #endif | |
91da11f8 | 1174 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1175 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1176 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1177 | break; |
396138f0 LB |
1178 | #endif |
1179 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1180 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1181 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1182 | break; |
5037d532 FF |
1183 | #endif |
1184 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1185 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1186 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1187 | break; |
91da11f8 LB |
1188 | #endif |
1189 | default: | |
5075314e | 1190 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1191 | break; |
91da11f8 | 1192 | } |
d442ad4a | 1193 | |
0d8bcdd3 FF |
1194 | p->old_pause = -1; |
1195 | p->old_link = -1; | |
1196 | p->old_duplex = -1; | |
1197 | ||
9697f1cd FF |
1198 | ret = dsa_slave_phy_setup(p, slave_dev); |
1199 | if (ret) { | |
1200 | free_netdev(slave_dev); | |
d87d6f44 | 1201 | return ret; |
9697f1cd | 1202 | } |
91da11f8 | 1203 | |
d87d6f44 | 1204 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1205 | ret = register_netdev(slave_dev); |
1206 | if (ret) { | |
a2ae6007 JP |
1207 | netdev_err(master, "error %d registering interface %s\n", |
1208 | ret, slave_dev->name); | |
9697f1cd | 1209 | phy_disconnect(p->phy); |
d87d6f44 | 1210 | ds->ports[port] = NULL; |
91da11f8 | 1211 | free_netdev(slave_dev); |
d87d6f44 | 1212 | return ret; |
91da11f8 LB |
1213 | } |
1214 | ||
1215 | netif_carrier_off(slave_dev); | |
1216 | ||
d87d6f44 | 1217 | return 0; |
91da11f8 | 1218 | } |
b73adef6 FF |
1219 | |
1220 | static bool dsa_slave_dev_check(struct net_device *dev) | |
1221 | { | |
1222 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1223 | } | |
1224 | ||
1225 | static int dsa_slave_master_changed(struct net_device *dev) | |
1226 | { | |
1227 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
b06b107a | 1228 | struct dsa_slave_priv *p = netdev_priv(dev); |
b73adef6 FF |
1229 | int err = 0; |
1230 | ||
1231 | if (master && master->rtnl_link_ops && | |
1232 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
1233 | err = dsa_slave_bridge_port_join(dev, master); | |
b06b107a | 1234 | else if (dsa_port_is_bridged(p)) |
b73adef6 FF |
1235 | err = dsa_slave_bridge_port_leave(dev); |
1236 | ||
1237 | return err; | |
1238 | } | |
1239 | ||
1240 | int dsa_slave_netdevice_event(struct notifier_block *unused, | |
1241 | unsigned long event, void *ptr) | |
1242 | { | |
1243 | struct net_device *dev; | |
1244 | int err = 0; | |
1245 | ||
1246 | switch (event) { | |
1247 | case NETDEV_CHANGEUPPER: | |
1248 | dev = netdev_notifier_info_to_dev(ptr); | |
1249 | if (!dsa_slave_dev_check(dev)) | |
1250 | goto out; | |
1251 | ||
1252 | err = dsa_slave_master_changed(dev); | |
1253 | if (err) | |
1254 | netdev_warn(dev, "failed to reflect master change\n"); | |
1255 | ||
1256 | break; | |
1257 | } | |
1258 | ||
1259 | out: | |
1260 | return NOTIFY_DONE; | |
1261 | } |