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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> | |
7f854420 | 18 | #include <linux/mdio.h> |
b73adef6 | 19 | #include <net/rtnetlink.h> |
98237d43 | 20 | #include <net/switchdev.h> |
b73adef6 | 21 | #include <linux/if_bridge.h> |
04ff53f9 | 22 | #include <linux/netpoll.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 | ||
11149536 VD |
204 | static int dsa_bridge_check_vlan_range(struct dsa_switch *ds, |
205 | const struct net_device *bridge, | |
206 | u16 vid_begin, u16 vid_end) | |
207 | { | |
208 | struct dsa_slave_priv *p; | |
209 | struct net_device *dev, *vlan_br; | |
210 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
211 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
212 | u16 vid; | |
213 | int member, err; | |
214 | ||
215 | if (!ds->drv->vlan_getnext || !vid_begin) | |
216 | return -EOPNOTSUPP; | |
217 | ||
218 | vid = vid_begin - 1; | |
219 | ||
220 | do { | |
221 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
222 | if (err) | |
223 | break; | |
224 | ||
225 | if (vid > vid_end) | |
226 | break; | |
227 | ||
228 | member = find_first_bit(members, DSA_MAX_PORTS); | |
229 | if (member == DSA_MAX_PORTS) | |
230 | continue; | |
231 | ||
232 | dev = ds->ports[member]; | |
233 | p = netdev_priv(dev); | |
234 | vlan_br = p->bridge_dev; | |
235 | if (vlan_br == bridge) | |
236 | continue; | |
237 | ||
238 | netdev_dbg(vlan_br, "hardware VLAN %d already in use\n", vid); | |
239 | return -EOPNOTSUPP; | |
240 | } while (vid < vid_end); | |
241 | ||
242 | return err == -ENOENT ? 0 : err; | |
243 | } | |
244 | ||
245 | static int dsa_slave_port_vlan_add(struct net_device *dev, | |
8f24f309 | 246 | const struct switchdev_obj_port_vlan *vlan, |
f8db8348 | 247 | struct switchdev_trans *trans) |
11149536 | 248 | { |
11149536 VD |
249 | struct dsa_slave_priv *p = netdev_priv(dev); |
250 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
251 | int err; |
252 | ||
79a62eb2 | 253 | if (switchdev_trans_ph_prepare(trans)) { |
76e398a6 | 254 | if (!ds->drv->port_vlan_prepare || !ds->drv->port_vlan_add) |
11149536 VD |
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; | |
76e398a6 VD |
265 | |
266 | err = ds->drv->port_vlan_prepare(ds, p->port, vlan, trans); | |
267 | if (err) | |
268 | return err; | |
79a62eb2 | 269 | } else { |
76e398a6 VD |
270 | err = ds->drv->port_vlan_add(ds, p->port, vlan, trans); |
271 | if (err) | |
272 | return err; | |
11149536 VD |
273 | } |
274 | ||
275 | return 0; | |
276 | } | |
277 | ||
278 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
8f24f309 | 279 | const struct switchdev_obj_port_vlan *vlan) |
11149536 | 280 | { |
11149536 VD |
281 | struct dsa_slave_priv *p = netdev_priv(dev); |
282 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
283 | |
284 | if (!ds->drv->port_vlan_del) | |
285 | return -EOPNOTSUPP; | |
286 | ||
76e398a6 | 287 | return ds->drv->port_vlan_del(ds, p->port, vlan); |
11149536 VD |
288 | } |
289 | ||
290 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
8f24f309 | 291 | struct switchdev_obj_port_vlan *vlan, |
648b4a99 | 292 | switchdev_obj_dump_cb_t *cb) |
11149536 | 293 | { |
11149536 VD |
294 | struct dsa_slave_priv *p = netdev_priv(dev); |
295 | struct dsa_switch *ds = p->parent; | |
296 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
297 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
298 | u16 pvid, vid = 0; | |
299 | int err; | |
300 | ||
301 | if (!ds->drv->vlan_getnext || !ds->drv->port_pvid_get) | |
302 | return -EOPNOTSUPP; | |
303 | ||
304 | err = ds->drv->port_pvid_get(ds, p->port, &pvid); | |
305 | if (err) | |
306 | return err; | |
307 | ||
308 | for (;;) { | |
309 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
310 | if (err) | |
311 | break; | |
312 | ||
313 | if (!test_bit(p->port, members)) | |
314 | continue; | |
315 | ||
316 | memset(vlan, 0, sizeof(*vlan)); | |
317 | vlan->vid_begin = vlan->vid_end = vid; | |
318 | ||
319 | if (vid == pvid) | |
320 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
321 | ||
322 | if (test_bit(p->port, untagged)) | |
323 | vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED; | |
324 | ||
648b4a99 | 325 | err = cb(&vlan->obj); |
11149536 VD |
326 | if (err) |
327 | break; | |
328 | } | |
329 | ||
330 | return err == -ENOENT ? 0 : err; | |
331 | } | |
332 | ||
ba14d9eb | 333 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
52ba57cf | 334 | const struct switchdev_obj_port_fdb *fdb, |
f8db8348 | 335 | struct switchdev_trans *trans) |
cdf09697 DM |
336 | { |
337 | struct dsa_slave_priv *p = netdev_priv(dev); | |
338 | struct dsa_switch *ds = p->parent; | |
146a3206 VD |
339 | int ret; |
340 | ||
341 | if (!ds->drv->port_fdb_prepare || !ds->drv->port_fdb_add) | |
342 | return -EOPNOTSUPP; | |
cdf09697 | 343 | |
79a62eb2 | 344 | if (switchdev_trans_ph_prepare(trans)) |
146a3206 | 345 | ret = ds->drv->port_fdb_prepare(ds, p->port, fdb, trans); |
79a62eb2 | 346 | else |
1f36faf2 | 347 | ret = ds->drv->port_fdb_add(ds, p->port, fdb, trans); |
cdf09697 DM |
348 | |
349 | return ret; | |
350 | } | |
351 | ||
ba14d9eb | 352 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
52ba57cf | 353 | const struct switchdev_obj_port_fdb *fdb) |
cdf09697 DM |
354 | { |
355 | struct dsa_slave_priv *p = netdev_priv(dev); | |
356 | struct dsa_switch *ds = p->parent; | |
357 | int ret = -EOPNOTSUPP; | |
358 | ||
2a778e1b | 359 | if (ds->drv->port_fdb_del) |
8057b3e7 | 360 | ret = ds->drv->port_fdb_del(ds, p->port, fdb); |
cdf09697 DM |
361 | |
362 | return ret; | |
363 | } | |
364 | ||
ba14d9eb | 365 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
52ba57cf | 366 | struct switchdev_obj_port_fdb *fdb, |
648b4a99 | 367 | switchdev_obj_dump_cb_t *cb) |
cdf09697 DM |
368 | { |
369 | struct dsa_slave_priv *p = netdev_priv(dev); | |
370 | struct dsa_switch *ds = p->parent; | |
cdf09697 | 371 | |
ea70ba98 VD |
372 | if (ds->drv->port_fdb_dump) |
373 | return ds->drv->port_fdb_dump(ds, p->port, fdb, cb); | |
374 | ||
1a49a2fb | 375 | return -EOPNOTSUPP; |
cdf09697 DM |
376 | } |
377 | ||
91da11f8 LB |
378 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
379 | { | |
380 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
381 | |
382 | if (p->phy != NULL) | |
28b04113 | 383 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
384 | |
385 | return -EOPNOTSUPP; | |
386 | } | |
387 | ||
b73adef6 FF |
388 | /* Return a bitmask of all ports being currently bridged within a given bridge |
389 | * device. Note that on leave, the mask will still return the bitmask of ports | |
390 | * currently bridged, prior to port removal, and this is exactly what we want. | |
391 | */ | |
392 | static u32 dsa_slave_br_port_mask(struct dsa_switch *ds, | |
393 | struct net_device *bridge) | |
394 | { | |
395 | struct dsa_slave_priv *p; | |
396 | unsigned int port; | |
397 | u32 mask = 0; | |
398 | ||
399 | for (port = 0; port < DSA_MAX_PORTS; port++) { | |
d79d2107 | 400 | if (!dsa_is_port_initialized(ds, port)) |
b73adef6 FF |
401 | continue; |
402 | ||
403 | p = netdev_priv(ds->ports[port]); | |
404 | ||
405 | if (ds->ports[port]->priv_flags & IFF_BRIDGE_PORT && | |
406 | p->bridge_dev == bridge) | |
407 | mask |= 1 << port; | |
408 | } | |
409 | ||
410 | return mask; | |
411 | } | |
412 | ||
413 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) | |
414 | { | |
415 | struct dsa_slave_priv *p = netdev_priv(dev); | |
416 | struct dsa_switch *ds = p->parent; | |
417 | int ret = -EOPNOTSUPP; | |
418 | ||
419 | if (ds->drv->port_stp_update) | |
420 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
421 | ||
422 | return ret; | |
423 | } | |
424 | ||
35636062 | 425 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 426 | const struct switchdev_attr *attr, |
7ea6eb3f | 427 | struct switchdev_trans *trans) |
35636062 | 428 | { |
b8d866ac VD |
429 | struct dsa_slave_priv *p = netdev_priv(dev); |
430 | struct dsa_switch *ds = p->parent; | |
431 | int ret; | |
35636062 SF |
432 | |
433 | switch (attr->id) { | |
1f868398 | 434 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
b8d866ac VD |
435 | if (switchdev_trans_ph_prepare(trans)) |
436 | ret = ds->drv->port_stp_update ? 0 : -EOPNOTSUPP; | |
437 | else | |
438 | ret = ds->drv->port_stp_update(ds, p->port, | |
439 | attr->u.stp_state); | |
35636062 SF |
440 | break; |
441 | default: | |
442 | ret = -EOPNOTSUPP; | |
443 | break; | |
444 | } | |
445 | ||
446 | return ret; | |
447 | } | |
448 | ||
ba14d9eb | 449 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 450 | const struct switchdev_obj *obj, |
7ea6eb3f | 451 | struct switchdev_trans *trans) |
ba14d9eb VD |
452 | { |
453 | int err; | |
454 | ||
455 | /* For the prepare phase, ensure the full set of changes is feasable in | |
456 | * one go in order to signal a failure properly. If an operation is not | |
457 | * supported, return -EOPNOTSUPP. | |
458 | */ | |
459 | ||
9e8f4a54 | 460 | switch (obj->id) { |
57d80838 | 461 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
462 | err = dsa_slave_port_fdb_add(dev, |
463 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
464 | trans); | |
ba14d9eb | 465 | break; |
57d80838 | 466 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
467 | err = dsa_slave_port_vlan_add(dev, |
468 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
469 | trans); | |
11149536 | 470 | break; |
ba14d9eb VD |
471 | default: |
472 | err = -EOPNOTSUPP; | |
473 | break; | |
474 | } | |
475 | ||
476 | return err; | |
477 | } | |
478 | ||
479 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 480 | const struct switchdev_obj *obj) |
ba14d9eb VD |
481 | { |
482 | int err; | |
483 | ||
9e8f4a54 | 484 | switch (obj->id) { |
57d80838 | 485 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
486 | err = dsa_slave_port_fdb_del(dev, |
487 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
ba14d9eb | 488 | break; |
57d80838 | 489 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
490 | err = dsa_slave_port_vlan_del(dev, |
491 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
11149536 | 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_dump(struct net_device *dev, | |
648b4a99 JP |
502 | struct switchdev_obj *obj, |
503 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb VD |
504 | { |
505 | int err; | |
506 | ||
9e8f4a54 | 507 | switch (obj->id) { |
57d80838 | 508 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
509 | err = dsa_slave_port_fdb_dump(dev, |
510 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
511 | cb); | |
ba14d9eb | 512 | break; |
57d80838 | 513 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
514 | err = dsa_slave_port_vlan_dump(dev, |
515 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
516 | cb); | |
11149536 | 517 | break; |
ba14d9eb VD |
518 | default: |
519 | err = -EOPNOTSUPP; | |
520 | break; | |
521 | } | |
522 | ||
523 | return err; | |
524 | } | |
525 | ||
b73adef6 FF |
526 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
527 | struct net_device *br) | |
528 | { | |
529 | struct dsa_slave_priv *p = netdev_priv(dev); | |
530 | struct dsa_switch *ds = p->parent; | |
531 | int ret = -EOPNOTSUPP; | |
532 | ||
533 | p->bridge_dev = br; | |
534 | ||
535 | if (ds->drv->port_join_bridge) | |
536 | ret = ds->drv->port_join_bridge(ds, p->port, | |
537 | dsa_slave_br_port_mask(ds, br)); | |
538 | ||
539 | return ret; | |
540 | } | |
541 | ||
542 | static int dsa_slave_bridge_port_leave(struct net_device *dev) | |
543 | { | |
544 | struct dsa_slave_priv *p = netdev_priv(dev); | |
545 | struct dsa_switch *ds = p->parent; | |
546 | int ret = -EOPNOTSUPP; | |
547 | ||
548 | ||
549 | if (ds->drv->port_leave_bridge) | |
550 | ret = ds->drv->port_leave_bridge(ds, p->port, | |
551 | dsa_slave_br_port_mask(ds, p->bridge_dev)); | |
552 | ||
553 | p->bridge_dev = NULL; | |
554 | ||
555 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
556 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
557 | */ | |
558 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
559 | ||
560 | return ret; | |
561 | } | |
562 | ||
f8e20a9f SF |
563 | static int dsa_slave_port_attr_get(struct net_device *dev, |
564 | struct switchdev_attr *attr) | |
b73adef6 FF |
565 | { |
566 | struct dsa_slave_priv *p = netdev_priv(dev); | |
567 | struct dsa_switch *ds = p->parent; | |
568 | ||
f8e20a9f | 569 | switch (attr->id) { |
1f868398 | 570 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
571 | attr->u.ppid.id_len = sizeof(ds->index); |
572 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
573 | break; |
574 | default: | |
575 | return -EOPNOTSUPP; | |
576 | } | |
b73adef6 FF |
577 | |
578 | return 0; | |
579 | } | |
580 | ||
04ff53f9 FF |
581 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
582 | struct sk_buff *skb) | |
583 | { | |
584 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
585 | if (p->netpoll) | |
586 | netpoll_send_skb(p->netpoll, skb); | |
587 | #else | |
588 | BUG(); | |
589 | #endif | |
590 | return NETDEV_TX_OK; | |
591 | } | |
592 | ||
3e8a72d1 FF |
593 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
594 | { | |
595 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 596 | struct sk_buff *nskb; |
3e8a72d1 | 597 | |
4ed70ce9 FF |
598 | dev->stats.tx_packets++; |
599 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 600 | |
4ed70ce9 FF |
601 | /* Transmit function may have to reallocate the original SKB */ |
602 | nskb = p->xmit(skb, dev); | |
603 | if (!nskb) | |
604 | return NETDEV_TX_OK; | |
5aed85ce | 605 | |
04ff53f9 FF |
606 | /* SKB for netpoll still need to be mangled with the protocol-specific |
607 | * tag to be successfully transmitted | |
608 | */ | |
609 | if (unlikely(netpoll_tx_running(dev))) | |
610 | return dsa_netpoll_send_skb(p, nskb); | |
611 | ||
4ed70ce9 FF |
612 | /* Queue the SKB for transmission on the parent interface, but |
613 | * do not modify its EtherType | |
614 | */ | |
615 | nskb->dev = p->parent->dst->master_netdev; | |
616 | dev_queue_xmit(nskb); | |
5aed85ce FF |
617 | |
618 | return NETDEV_TX_OK; | |
619 | } | |
620 | ||
4ed70ce9 FF |
621 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
622 | struct net_device *dev) | |
623 | { | |
624 | /* Just return the original SKB */ | |
625 | return skb; | |
626 | } | |
627 | ||
91da11f8 LB |
628 | |
629 | /* ethtool operations *******************************************************/ | |
630 | static int | |
631 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
632 | { | |
633 | struct dsa_slave_priv *p = netdev_priv(dev); | |
634 | int err; | |
635 | ||
636 | err = -EOPNOTSUPP; | |
637 | if (p->phy != NULL) { | |
638 | err = phy_read_status(p->phy); | |
639 | if (err == 0) | |
640 | err = phy_ethtool_gset(p->phy, cmd); | |
641 | } | |
642 | ||
643 | return err; | |
644 | } | |
645 | ||
646 | static int | |
647 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
648 | { | |
649 | struct dsa_slave_priv *p = netdev_priv(dev); | |
650 | ||
651 | if (p->phy != NULL) | |
652 | return phy_ethtool_sset(p->phy, cmd); | |
653 | ||
654 | return -EOPNOTSUPP; | |
655 | } | |
656 | ||
657 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
658 | struct ethtool_drvinfo *drvinfo) | |
659 | { | |
7826d43f JP |
660 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
661 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
662 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
663 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
664 | } |
665 | ||
3d762a0f GR |
666 | static int dsa_slave_get_regs_len(struct net_device *dev) |
667 | { | |
668 | struct dsa_slave_priv *p = netdev_priv(dev); | |
669 | struct dsa_switch *ds = p->parent; | |
670 | ||
671 | if (ds->drv->get_regs_len) | |
672 | return ds->drv->get_regs_len(ds, p->port); | |
673 | ||
674 | return -EOPNOTSUPP; | |
675 | } | |
676 | ||
677 | static void | |
678 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
679 | { | |
680 | struct dsa_slave_priv *p = netdev_priv(dev); | |
681 | struct dsa_switch *ds = p->parent; | |
682 | ||
683 | if (ds->drv->get_regs) | |
684 | ds->drv->get_regs(ds, p->port, regs, _p); | |
685 | } | |
686 | ||
91da11f8 LB |
687 | static int dsa_slave_nway_reset(struct net_device *dev) |
688 | { | |
689 | struct dsa_slave_priv *p = netdev_priv(dev); | |
690 | ||
691 | if (p->phy != NULL) | |
692 | return genphy_restart_aneg(p->phy); | |
693 | ||
694 | return -EOPNOTSUPP; | |
695 | } | |
696 | ||
697 | static u32 dsa_slave_get_link(struct net_device *dev) | |
698 | { | |
699 | struct dsa_slave_priv *p = netdev_priv(dev); | |
700 | ||
701 | if (p->phy != NULL) { | |
702 | genphy_update_link(p->phy); | |
703 | return p->phy->link; | |
704 | } | |
705 | ||
706 | return -EOPNOTSUPP; | |
707 | } | |
708 | ||
6793abb4 GR |
709 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
710 | { | |
711 | struct dsa_slave_priv *p = netdev_priv(dev); | |
712 | struct dsa_switch *ds = p->parent; | |
713 | ||
714 | if (ds->pd->eeprom_len) | |
715 | return ds->pd->eeprom_len; | |
716 | ||
717 | if (ds->drv->get_eeprom_len) | |
718 | return ds->drv->get_eeprom_len(ds); | |
719 | ||
720 | return 0; | |
721 | } | |
722 | ||
723 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
724 | struct ethtool_eeprom *eeprom, u8 *data) | |
725 | { | |
726 | struct dsa_slave_priv *p = netdev_priv(dev); | |
727 | struct dsa_switch *ds = p->parent; | |
728 | ||
729 | if (ds->drv->get_eeprom) | |
730 | return ds->drv->get_eeprom(ds, eeprom, data); | |
731 | ||
732 | return -EOPNOTSUPP; | |
733 | } | |
734 | ||
735 | static int dsa_slave_set_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->set_eeprom) | |
742 | return ds->drv->set_eeprom(ds, eeprom, data); | |
743 | ||
744 | return -EOPNOTSUPP; | |
745 | } | |
746 | ||
91da11f8 LB |
747 | static void dsa_slave_get_strings(struct net_device *dev, |
748 | uint32_t stringset, uint8_t *data) | |
749 | { | |
750 | struct dsa_slave_priv *p = netdev_priv(dev); | |
751 | struct dsa_switch *ds = p->parent; | |
752 | ||
753 | if (stringset == ETH_SS_STATS) { | |
754 | int len = ETH_GSTRING_LEN; | |
755 | ||
756 | strncpy(data, "tx_packets", len); | |
757 | strncpy(data + len, "tx_bytes", len); | |
758 | strncpy(data + 2 * len, "rx_packets", len); | |
759 | strncpy(data + 3 * len, "rx_bytes", len); | |
760 | if (ds->drv->get_strings != NULL) | |
761 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
762 | } | |
763 | } | |
764 | ||
765 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
766 | struct ethtool_stats *stats, | |
767 | uint64_t *data) | |
768 | { | |
769 | struct dsa_slave_priv *p = netdev_priv(dev); | |
770 | struct dsa_switch *ds = p->parent; | |
771 | ||
772 | data[0] = p->dev->stats.tx_packets; | |
773 | data[1] = p->dev->stats.tx_bytes; | |
774 | data[2] = p->dev->stats.rx_packets; | |
775 | data[3] = p->dev->stats.rx_bytes; | |
776 | if (ds->drv->get_ethtool_stats != NULL) | |
777 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
778 | } | |
779 | ||
780 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
781 | { | |
782 | struct dsa_slave_priv *p = netdev_priv(dev); | |
783 | struct dsa_switch *ds = p->parent; | |
784 | ||
785 | if (sset == ETH_SS_STATS) { | |
786 | int count; | |
787 | ||
788 | count = 4; | |
789 | if (ds->drv->get_sset_count != NULL) | |
790 | count += ds->drv->get_sset_count(ds); | |
791 | ||
792 | return count; | |
793 | } | |
794 | ||
795 | return -EOPNOTSUPP; | |
796 | } | |
797 | ||
19e57c4e FF |
798 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
799 | { | |
800 | struct dsa_slave_priv *p = netdev_priv(dev); | |
801 | struct dsa_switch *ds = p->parent; | |
802 | ||
803 | if (ds->drv->get_wol) | |
804 | ds->drv->get_wol(ds, p->port, w); | |
805 | } | |
806 | ||
807 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
808 | { | |
809 | struct dsa_slave_priv *p = netdev_priv(dev); | |
810 | struct dsa_switch *ds = p->parent; | |
811 | int ret = -EOPNOTSUPP; | |
812 | ||
813 | if (ds->drv->set_wol) | |
814 | ret = ds->drv->set_wol(ds, p->port, w); | |
815 | ||
816 | return ret; | |
817 | } | |
818 | ||
7905288f FF |
819 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
820 | { | |
821 | struct dsa_slave_priv *p = netdev_priv(dev); | |
822 | struct dsa_switch *ds = p->parent; | |
823 | int ret; | |
824 | ||
825 | if (!ds->drv->set_eee) | |
826 | return -EOPNOTSUPP; | |
827 | ||
828 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
829 | if (ret) | |
830 | return ret; | |
831 | ||
832 | if (p->phy) | |
833 | ret = phy_ethtool_set_eee(p->phy, e); | |
834 | ||
835 | return ret; | |
836 | } | |
837 | ||
838 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
839 | { | |
840 | struct dsa_slave_priv *p = netdev_priv(dev); | |
841 | struct dsa_switch *ds = p->parent; | |
842 | int ret; | |
843 | ||
844 | if (!ds->drv->get_eee) | |
845 | return -EOPNOTSUPP; | |
846 | ||
847 | ret = ds->drv->get_eee(ds, p->port, e); | |
848 | if (ret) | |
849 | return ret; | |
850 | ||
851 | if (p->phy) | |
852 | ret = phy_ethtool_get_eee(p->phy, e); | |
853 | ||
854 | return ret; | |
855 | } | |
856 | ||
04ff53f9 FF |
857 | #ifdef CONFIG_NET_POLL_CONTROLLER |
858 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
859 | struct netpoll_info *ni) | |
860 | { | |
861 | struct dsa_slave_priv *p = netdev_priv(dev); | |
862 | struct dsa_switch *ds = p->parent; | |
863 | struct net_device *master = ds->dst->master_netdev; | |
864 | struct netpoll *netpoll; | |
865 | int err = 0; | |
866 | ||
867 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
868 | if (!netpoll) | |
869 | return -ENOMEM; | |
870 | ||
871 | err = __netpoll_setup(netpoll, master); | |
872 | if (err) { | |
873 | kfree(netpoll); | |
874 | goto out; | |
875 | } | |
876 | ||
877 | p->netpoll = netpoll; | |
878 | out: | |
879 | return err; | |
880 | } | |
881 | ||
882 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
883 | { | |
884 | struct dsa_slave_priv *p = netdev_priv(dev); | |
885 | struct netpoll *netpoll = p->netpoll; | |
886 | ||
887 | if (!netpoll) | |
888 | return; | |
889 | ||
890 | p->netpoll = NULL; | |
891 | ||
892 | __netpoll_free_async(netpoll); | |
893 | } | |
894 | ||
895 | static void dsa_slave_poll_controller(struct net_device *dev) | |
896 | { | |
897 | } | |
898 | #endif | |
899 | ||
91da11f8 LB |
900 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
901 | .get_settings = dsa_slave_get_settings, | |
902 | .set_settings = dsa_slave_set_settings, | |
903 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
904 | .get_regs_len = dsa_slave_get_regs_len, |
905 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
906 | .nway_reset = dsa_slave_nway_reset, |
907 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
908 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
909 | .get_eeprom = dsa_slave_get_eeprom, | |
910 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
911 | .get_strings = dsa_slave_get_strings, |
912 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
913 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
914 | .set_wol = dsa_slave_set_wol, |
915 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
916 | .set_eee = dsa_slave_set_eee, |
917 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
918 | }; |
919 | ||
3e8a72d1 | 920 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
921 | .ndo_open = dsa_slave_open, |
922 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 923 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
924 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
925 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 926 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
927 | .ndo_fdb_add = switchdev_port_fdb_add, |
928 | .ndo_fdb_del = switchdev_port_fdb_del, | |
929 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 930 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 931 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
932 | #ifdef CONFIG_NET_POLL_CONTROLLER |
933 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
934 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
935 | .ndo_poll_controller = dsa_slave_poll_controller, | |
936 | #endif | |
11149536 VD |
937 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
938 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
939 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
98237d43 SF |
940 | }; |
941 | ||
9d47c0a2 | 942 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 943 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 944 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
945 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
946 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
947 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 948 | }; |
91da11f8 | 949 | |
f37db85d FF |
950 | static struct device_type dsa_type = { |
951 | .name = "dsa", | |
952 | }; | |
953 | ||
0d8bcdd3 FF |
954 | static void dsa_slave_adjust_link(struct net_device *dev) |
955 | { | |
956 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 957 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
958 | unsigned int status_changed = 0; |
959 | ||
960 | if (p->old_link != p->phy->link) { | |
961 | status_changed = 1; | |
962 | p->old_link = p->phy->link; | |
963 | } | |
964 | ||
965 | if (p->old_duplex != p->phy->duplex) { | |
966 | status_changed = 1; | |
967 | p->old_duplex = p->phy->duplex; | |
968 | } | |
969 | ||
970 | if (p->old_pause != p->phy->pause) { | |
971 | status_changed = 1; | |
972 | p->old_pause = p->phy->pause; | |
973 | } | |
974 | ||
ec9436ba FF |
975 | if (ds->drv->adjust_link && status_changed) |
976 | ds->drv->adjust_link(ds, p->port, p->phy); | |
977 | ||
0d8bcdd3 FF |
978 | if (status_changed) |
979 | phy_print_status(p->phy); | |
980 | } | |
981 | ||
ce31b31c FF |
982 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
983 | struct fixed_phy_status *status) | |
984 | { | |
985 | struct dsa_slave_priv *p = netdev_priv(dev); | |
986 | struct dsa_switch *ds = p->parent; | |
987 | ||
988 | if (ds->drv->fixed_link_update) | |
989 | ds->drv->fixed_link_update(ds, p->port, status); | |
990 | ||
991 | return 0; | |
992 | } | |
993 | ||
91da11f8 | 994 | /* slave device setup *******************************************************/ |
c305c165 | 995 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
996 | struct net_device *slave_dev, |
997 | int addr) | |
c305c165 FF |
998 | { |
999 | struct dsa_switch *ds = p->parent; | |
1000 | ||
7f854420 | 1001 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1002 | if (!p->phy) { |
1003 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1004 | return -ENODEV; |
d25b8e74 | 1005 | } |
c305c165 FF |
1006 | |
1007 | /* Use already configured phy mode */ | |
211c504a FF |
1008 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1009 | p->phy_interface = p->phy->interface; | |
c305c165 FF |
1010 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1011 | p->phy_interface); | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
9697f1cd | 1016 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1017 | struct net_device *slave_dev) |
1018 | { | |
1019 | struct dsa_switch *ds = p->parent; | |
1020 | struct dsa_chip_data *cd = ds->pd; | |
1021 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 1022 | bool phy_is_fixed = false; |
6819563e | 1023 | u32 phy_flags = 0; |
19334920 | 1024 | int mode, ret; |
0d8bcdd3 FF |
1025 | |
1026 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
1027 | mode = of_get_phy_mode(port_dn); |
1028 | if (mode < 0) | |
1029 | mode = PHY_INTERFACE_MODE_NA; | |
1030 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1031 | |
1032 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
1033 | if (of_phy_is_fixed_link(port_dn)) { | |
1034 | /* In the case of a fixed PHY, the DT node associated | |
1035 | * to the fixed PHY is the Port DT node | |
1036 | */ | |
1037 | ret = of_phy_register_fixed_link(port_dn); | |
1038 | if (ret) { | |
d25b8e74 | 1039 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1040 | return ret; |
0d8bcdd3 | 1041 | } |
ce31b31c | 1042 | phy_is_fixed = true; |
0d8bcdd3 FF |
1043 | phy_dn = port_dn; |
1044 | } | |
1045 | ||
6819563e FF |
1046 | if (ds->drv->get_phy_flags) |
1047 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
1048 | ||
cd28a1a9 | 1049 | if (phy_dn) { |
d25b8e74 RK |
1050 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1051 | ||
cd28a1a9 FF |
1052 | /* If this PHY address is part of phys_mii_mask, which means |
1053 | * that we need to divert reads and writes to/from it, then we | |
1054 | * want to bind this device using the slave MII bus created by | |
1055 | * DSA to make that happen. | |
1056 | */ | |
d25b8e74 RK |
1057 | if (!phy_is_fixed && phy_id >= 0 && |
1058 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1059 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1060 | if (ret) { | |
1061 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
cd28a1a9 | 1062 | return ret; |
d25b8e74 | 1063 | } |
cd28a1a9 FF |
1064 | } else { |
1065 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1066 | dsa_slave_adjust_link, | |
1067 | phy_flags, | |
1068 | p->phy_interface); | |
1069 | } | |
1070 | } | |
0d8bcdd3 | 1071 | |
ce31b31c FF |
1072 | if (p->phy && phy_is_fixed) |
1073 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1074 | ||
0d8bcdd3 FF |
1075 | /* We could not connect to a designated PHY, so use the switch internal |
1076 | * MDIO bus instead | |
1077 | */ | |
b31f65fb | 1078 | if (!p->phy) { |
cd28a1a9 | 1079 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
d25b8e74 RK |
1080 | if (ret) { |
1081 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret); | |
c305c165 | 1082 | return ret; |
d25b8e74 | 1083 | } |
b31f65fb | 1084 | } |
9697f1cd | 1085 | |
2220943a AL |
1086 | phy_attached_info(p->phy); |
1087 | ||
9697f1cd | 1088 | return 0; |
0d8bcdd3 FF |
1089 | } |
1090 | ||
448b4482 AL |
1091 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1092 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1093 | struct netdev_queue *txq, | |
1094 | void *_unused) | |
1095 | { | |
1096 | lockdep_set_class(&txq->_xmit_lock, | |
1097 | &dsa_slave_netdev_xmit_lock_key); | |
1098 | } | |
1099 | ||
24462549 FF |
1100 | int dsa_slave_suspend(struct net_device *slave_dev) |
1101 | { | |
1102 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1103 | ||
24462549 FF |
1104 | if (p->phy) { |
1105 | phy_stop(p->phy); | |
1106 | p->old_pause = -1; | |
1107 | p->old_link = -1; | |
1108 | p->old_duplex = -1; | |
1109 | phy_suspend(p->phy); | |
1110 | } | |
1111 | ||
1112 | return 0; | |
1113 | } | |
1114 | ||
1115 | int dsa_slave_resume(struct net_device *slave_dev) | |
1116 | { | |
1117 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1118 | ||
1119 | netif_device_attach(slave_dev); | |
1120 | ||
1121 | if (p->phy) { | |
1122 | phy_resume(p->phy); | |
1123 | phy_start(p->phy); | |
1124 | } | |
1125 | ||
1126 | return 0; | |
1127 | } | |
1128 | ||
d87d6f44 GR |
1129 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
1130 | int port, char *name) | |
91da11f8 | 1131 | { |
e84665c9 | 1132 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
1133 | struct net_device *slave_dev; |
1134 | struct dsa_slave_priv *p; | |
1135 | int ret; | |
1136 | ||
c835a677 TG |
1137 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1138 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1139 | if (slave_dev == NULL) |
d87d6f44 | 1140 | return -ENOMEM; |
91da11f8 LB |
1141 | |
1142 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1143 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1144 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1145 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1146 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1147 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
f37db85d | 1148 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1149 | |
448b4482 AL |
1150 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1151 | NULL); | |
1152 | ||
5075314e AD |
1153 | SET_NETDEV_DEV(slave_dev, parent); |
1154 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
1155 | slave_dev->vlan_features = master->vlan_features; | |
1156 | ||
1157 | p = netdev_priv(slave_dev); | |
1158 | p->dev = slave_dev; | |
1159 | p->parent = ds; | |
1160 | p->port = port; | |
1161 | ||
e84665c9 | 1162 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1163 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1164 | case DSA_TAG_PROTO_DSA: |
5075314e | 1165 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1166 | break; |
1167 | #endif | |
91da11f8 | 1168 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1169 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1170 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1171 | break; |
396138f0 LB |
1172 | #endif |
1173 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1174 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1175 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1176 | break; |
5037d532 FF |
1177 | #endif |
1178 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1179 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1180 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1181 | break; |
91da11f8 LB |
1182 | #endif |
1183 | default: | |
5075314e | 1184 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1185 | break; |
91da11f8 | 1186 | } |
d442ad4a | 1187 | |
0d8bcdd3 FF |
1188 | p->old_pause = -1; |
1189 | p->old_link = -1; | |
1190 | p->old_duplex = -1; | |
1191 | ||
9697f1cd FF |
1192 | ret = dsa_slave_phy_setup(p, slave_dev); |
1193 | if (ret) { | |
d25b8e74 | 1194 | netdev_err(master, "error %d setting up slave phy\n", ret); |
9697f1cd | 1195 | free_netdev(slave_dev); |
d87d6f44 | 1196 | return ret; |
9697f1cd | 1197 | } |
91da11f8 | 1198 | |
d87d6f44 | 1199 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1200 | ret = register_netdev(slave_dev); |
1201 | if (ret) { | |
a2ae6007 JP |
1202 | netdev_err(master, "error %d registering interface %s\n", |
1203 | ret, slave_dev->name); | |
9697f1cd | 1204 | phy_disconnect(p->phy); |
d87d6f44 | 1205 | ds->ports[port] = NULL; |
91da11f8 | 1206 | free_netdev(slave_dev); |
d87d6f44 | 1207 | return ret; |
91da11f8 LB |
1208 | } |
1209 | ||
1210 | netif_carrier_off(slave_dev); | |
1211 | ||
d87d6f44 | 1212 | return 0; |
91da11f8 | 1213 | } |
b73adef6 | 1214 | |
cda5c15b NA |
1215 | void dsa_slave_destroy(struct net_device *slave_dev) |
1216 | { | |
1217 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1218 | ||
1219 | netif_carrier_off(slave_dev); | |
1220 | if (p->phy) | |
1221 | phy_disconnect(p->phy); | |
1222 | unregister_netdev(slave_dev); | |
1223 | free_netdev(slave_dev); | |
1224 | } | |
1225 | ||
b73adef6 FF |
1226 | static bool dsa_slave_dev_check(struct net_device *dev) |
1227 | { | |
1228 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1229 | } | |
1230 | ||
1231 | static int dsa_slave_master_changed(struct net_device *dev) | |
1232 | { | |
1233 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
b06b107a | 1234 | struct dsa_slave_priv *p = netdev_priv(dev); |
b73adef6 FF |
1235 | int err = 0; |
1236 | ||
1237 | if (master && master->rtnl_link_ops && | |
1238 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
1239 | err = dsa_slave_bridge_port_join(dev, master); | |
b06b107a | 1240 | else if (dsa_port_is_bridged(p)) |
b73adef6 FF |
1241 | err = dsa_slave_bridge_port_leave(dev); |
1242 | ||
1243 | return err; | |
1244 | } | |
1245 | ||
1246 | int dsa_slave_netdevice_event(struct notifier_block *unused, | |
1247 | unsigned long event, void *ptr) | |
1248 | { | |
1249 | struct net_device *dev; | |
1250 | int err = 0; | |
1251 | ||
1252 | switch (event) { | |
1253 | case NETDEV_CHANGEUPPER: | |
1254 | dev = netdev_notifier_info_to_dev(ptr); | |
1255 | if (!dsa_slave_dev_check(dev)) | |
1256 | goto out; | |
1257 | ||
1258 | err = dsa_slave_master_changed(dev); | |
efd29b3d | 1259 | if (err && err != -EOPNOTSUPP) |
b73adef6 FF |
1260 | netdev_warn(dev, "failed to reflect master change\n"); |
1261 | ||
1262 | break; | |
1263 | } | |
1264 | ||
1265 | out: | |
1266 | return NOTIFY_DONE; | |
1267 | } |