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> | |
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 | 204 | static int dsa_slave_port_vlan_add(struct net_device *dev, |
8f24f309 | 205 | const struct switchdev_obj_port_vlan *vlan, |
f8db8348 | 206 | struct switchdev_trans *trans) |
11149536 | 207 | { |
11149536 VD |
208 | struct dsa_slave_priv *p = netdev_priv(dev); |
209 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
210 | int err; |
211 | ||
79a62eb2 | 212 | if (switchdev_trans_ph_prepare(trans)) { |
76e398a6 | 213 | if (!ds->drv->port_vlan_prepare || !ds->drv->port_vlan_add) |
11149536 VD |
214 | return -EOPNOTSUPP; |
215 | ||
76e398a6 VD |
216 | err = ds->drv->port_vlan_prepare(ds, p->port, vlan, trans); |
217 | if (err) | |
218 | return err; | |
79a62eb2 | 219 | } else { |
76e398a6 VD |
220 | err = ds->drv->port_vlan_add(ds, p->port, vlan, trans); |
221 | if (err) | |
222 | return err; | |
11149536 VD |
223 | } |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
228 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
8f24f309 | 229 | const struct switchdev_obj_port_vlan *vlan) |
11149536 | 230 | { |
11149536 VD |
231 | struct dsa_slave_priv *p = netdev_priv(dev); |
232 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
233 | |
234 | if (!ds->drv->port_vlan_del) | |
235 | return -EOPNOTSUPP; | |
236 | ||
76e398a6 | 237 | return ds->drv->port_vlan_del(ds, p->port, vlan); |
11149536 VD |
238 | } |
239 | ||
240 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
8f24f309 | 241 | struct switchdev_obj_port_vlan *vlan, |
648b4a99 | 242 | switchdev_obj_dump_cb_t *cb) |
11149536 | 243 | { |
11149536 VD |
244 | struct dsa_slave_priv *p = netdev_priv(dev); |
245 | struct dsa_switch *ds = p->parent; | |
11149536 | 246 | |
65aebfc0 VD |
247 | if (ds->drv->port_vlan_dump) |
248 | return ds->drv->port_vlan_dump(ds, p->port, vlan, cb); | |
249 | ||
477b1845 | 250 | return -EOPNOTSUPP; |
11149536 VD |
251 | } |
252 | ||
ba14d9eb | 253 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
52ba57cf | 254 | const struct switchdev_obj_port_fdb *fdb, |
f8db8348 | 255 | struct switchdev_trans *trans) |
cdf09697 DM |
256 | { |
257 | struct dsa_slave_priv *p = netdev_priv(dev); | |
258 | struct dsa_switch *ds = p->parent; | |
146a3206 VD |
259 | int ret; |
260 | ||
261 | if (!ds->drv->port_fdb_prepare || !ds->drv->port_fdb_add) | |
262 | return -EOPNOTSUPP; | |
cdf09697 | 263 | |
79a62eb2 | 264 | if (switchdev_trans_ph_prepare(trans)) |
146a3206 | 265 | ret = ds->drv->port_fdb_prepare(ds, p->port, fdb, trans); |
79a62eb2 | 266 | else |
1f36faf2 | 267 | ret = ds->drv->port_fdb_add(ds, p->port, fdb, trans); |
cdf09697 DM |
268 | |
269 | return ret; | |
270 | } | |
271 | ||
ba14d9eb | 272 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
52ba57cf | 273 | const struct switchdev_obj_port_fdb *fdb) |
cdf09697 DM |
274 | { |
275 | struct dsa_slave_priv *p = netdev_priv(dev); | |
276 | struct dsa_switch *ds = p->parent; | |
277 | int ret = -EOPNOTSUPP; | |
278 | ||
2a778e1b | 279 | if (ds->drv->port_fdb_del) |
8057b3e7 | 280 | ret = ds->drv->port_fdb_del(ds, p->port, fdb); |
cdf09697 DM |
281 | |
282 | return ret; | |
283 | } | |
284 | ||
ba14d9eb | 285 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
52ba57cf | 286 | struct switchdev_obj_port_fdb *fdb, |
648b4a99 | 287 | switchdev_obj_dump_cb_t *cb) |
cdf09697 DM |
288 | { |
289 | struct dsa_slave_priv *p = netdev_priv(dev); | |
290 | struct dsa_switch *ds = p->parent; | |
cdf09697 | 291 | |
ea70ba98 VD |
292 | if (ds->drv->port_fdb_dump) |
293 | return ds->drv->port_fdb_dump(ds, p->port, fdb, cb); | |
294 | ||
1a49a2fb | 295 | return -EOPNOTSUPP; |
cdf09697 DM |
296 | } |
297 | ||
91da11f8 LB |
298 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
299 | { | |
300 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
301 | |
302 | if (p->phy != NULL) | |
28b04113 | 303 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
304 | |
305 | return -EOPNOTSUPP; | |
306 | } | |
307 | ||
b73adef6 FF |
308 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) |
309 | { | |
310 | struct dsa_slave_priv *p = netdev_priv(dev); | |
311 | struct dsa_switch *ds = p->parent; | |
312 | int ret = -EOPNOTSUPP; | |
313 | ||
314 | if (ds->drv->port_stp_update) | |
315 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
316 | ||
317 | return ret; | |
318 | } | |
319 | ||
fb2dabad VD |
320 | static int dsa_slave_vlan_filtering(struct net_device *dev, |
321 | const struct switchdev_attr *attr, | |
322 | struct switchdev_trans *trans) | |
323 | { | |
324 | struct dsa_slave_priv *p = netdev_priv(dev); | |
325 | struct dsa_switch *ds = p->parent; | |
326 | ||
327 | /* bridge skips -EOPNOTSUPP, so skip the prepare phase */ | |
328 | if (switchdev_trans_ph_prepare(trans)) | |
329 | return 0; | |
330 | ||
331 | if (ds->drv->port_vlan_filtering) | |
332 | return ds->drv->port_vlan_filtering(ds, p->port, | |
333 | attr->u.vlan_filtering); | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
35636062 | 338 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 339 | const struct switchdev_attr *attr, |
7ea6eb3f | 340 | struct switchdev_trans *trans) |
35636062 | 341 | { |
b8d866ac VD |
342 | struct dsa_slave_priv *p = netdev_priv(dev); |
343 | struct dsa_switch *ds = p->parent; | |
344 | int ret; | |
35636062 SF |
345 | |
346 | switch (attr->id) { | |
1f868398 | 347 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
b8d866ac VD |
348 | if (switchdev_trans_ph_prepare(trans)) |
349 | ret = ds->drv->port_stp_update ? 0 : -EOPNOTSUPP; | |
350 | else | |
351 | ret = ds->drv->port_stp_update(ds, p->port, | |
352 | attr->u.stp_state); | |
35636062 | 353 | break; |
fb2dabad VD |
354 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
355 | ret = dsa_slave_vlan_filtering(dev, attr, trans); | |
356 | break; | |
35636062 SF |
357 | default: |
358 | ret = -EOPNOTSUPP; | |
359 | break; | |
360 | } | |
361 | ||
362 | return ret; | |
363 | } | |
364 | ||
ba14d9eb | 365 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 366 | const struct switchdev_obj *obj, |
7ea6eb3f | 367 | struct switchdev_trans *trans) |
ba14d9eb VD |
368 | { |
369 | int err; | |
370 | ||
371 | /* For the prepare phase, ensure the full set of changes is feasable in | |
372 | * one go in order to signal a failure properly. If an operation is not | |
373 | * supported, return -EOPNOTSUPP. | |
374 | */ | |
375 | ||
9e8f4a54 | 376 | switch (obj->id) { |
57d80838 | 377 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
378 | err = dsa_slave_port_fdb_add(dev, |
379 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
380 | trans); | |
ba14d9eb | 381 | break; |
57d80838 | 382 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
383 | err = dsa_slave_port_vlan_add(dev, |
384 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
385 | trans); | |
11149536 | 386 | break; |
ba14d9eb VD |
387 | default: |
388 | err = -EOPNOTSUPP; | |
389 | break; | |
390 | } | |
391 | ||
392 | return err; | |
393 | } | |
394 | ||
395 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 396 | const struct switchdev_obj *obj) |
ba14d9eb VD |
397 | { |
398 | int err; | |
399 | ||
9e8f4a54 | 400 | switch (obj->id) { |
57d80838 | 401 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
402 | err = dsa_slave_port_fdb_del(dev, |
403 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
ba14d9eb | 404 | break; |
57d80838 | 405 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
406 | err = dsa_slave_port_vlan_del(dev, |
407 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
11149536 | 408 | break; |
ba14d9eb VD |
409 | default: |
410 | err = -EOPNOTSUPP; | |
411 | break; | |
412 | } | |
413 | ||
414 | return err; | |
415 | } | |
416 | ||
417 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
418 | struct switchdev_obj *obj, |
419 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb VD |
420 | { |
421 | int err; | |
422 | ||
9e8f4a54 | 423 | switch (obj->id) { |
57d80838 | 424 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
425 | err = dsa_slave_port_fdb_dump(dev, |
426 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
427 | cb); | |
ba14d9eb | 428 | break; |
57d80838 | 429 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
430 | err = dsa_slave_port_vlan_dump(dev, |
431 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
432 | cb); | |
11149536 | 433 | break; |
ba14d9eb VD |
434 | default: |
435 | err = -EOPNOTSUPP; | |
436 | break; | |
437 | } | |
438 | ||
439 | return err; | |
440 | } | |
441 | ||
b73adef6 FF |
442 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
443 | struct net_device *br) | |
444 | { | |
445 | struct dsa_slave_priv *p = netdev_priv(dev); | |
446 | struct dsa_switch *ds = p->parent; | |
447 | int ret = -EOPNOTSUPP; | |
448 | ||
449 | p->bridge_dev = br; | |
450 | ||
71327a4e VD |
451 | if (ds->drv->port_bridge_join) |
452 | ret = ds->drv->port_bridge_join(ds, p->port, br); | |
b73adef6 | 453 | |
6debb68a | 454 | return ret == -EOPNOTSUPP ? 0 : ret; |
b73adef6 FF |
455 | } |
456 | ||
16bfa702 | 457 | static void dsa_slave_bridge_port_leave(struct net_device *dev) |
b73adef6 FF |
458 | { |
459 | struct dsa_slave_priv *p = netdev_priv(dev); | |
460 | struct dsa_switch *ds = p->parent; | |
b73adef6 FF |
461 | |
462 | ||
71327a4e | 463 | if (ds->drv->port_bridge_leave) |
16bfa702 | 464 | ds->drv->port_bridge_leave(ds, p->port); |
b73adef6 FF |
465 | |
466 | p->bridge_dev = NULL; | |
467 | ||
468 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
469 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
470 | */ | |
471 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
b73adef6 FF |
472 | } |
473 | ||
f8e20a9f SF |
474 | static int dsa_slave_port_attr_get(struct net_device *dev, |
475 | struct switchdev_attr *attr) | |
b73adef6 FF |
476 | { |
477 | struct dsa_slave_priv *p = netdev_priv(dev); | |
478 | struct dsa_switch *ds = p->parent; | |
479 | ||
f8e20a9f | 480 | switch (attr->id) { |
1f868398 | 481 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
482 | attr->u.ppid.id_len = sizeof(ds->index); |
483 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
484 | break; |
485 | default: | |
486 | return -EOPNOTSUPP; | |
487 | } | |
b73adef6 FF |
488 | |
489 | return 0; | |
490 | } | |
491 | ||
04ff53f9 FF |
492 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
493 | struct sk_buff *skb) | |
494 | { | |
495 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
496 | if (p->netpoll) | |
497 | netpoll_send_skb(p->netpoll, skb); | |
498 | #else | |
499 | BUG(); | |
500 | #endif | |
501 | return NETDEV_TX_OK; | |
502 | } | |
503 | ||
3e8a72d1 FF |
504 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
505 | { | |
506 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 507 | struct sk_buff *nskb; |
3e8a72d1 | 508 | |
4ed70ce9 FF |
509 | dev->stats.tx_packets++; |
510 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 511 | |
4ed70ce9 FF |
512 | /* Transmit function may have to reallocate the original SKB */ |
513 | nskb = p->xmit(skb, dev); | |
514 | if (!nskb) | |
515 | return NETDEV_TX_OK; | |
5aed85ce | 516 | |
04ff53f9 FF |
517 | /* SKB for netpoll still need to be mangled with the protocol-specific |
518 | * tag to be successfully transmitted | |
519 | */ | |
520 | if (unlikely(netpoll_tx_running(dev))) | |
521 | return dsa_netpoll_send_skb(p, nskb); | |
522 | ||
4ed70ce9 FF |
523 | /* Queue the SKB for transmission on the parent interface, but |
524 | * do not modify its EtherType | |
525 | */ | |
526 | nskb->dev = p->parent->dst->master_netdev; | |
527 | dev_queue_xmit(nskb); | |
5aed85ce FF |
528 | |
529 | return NETDEV_TX_OK; | |
530 | } | |
531 | ||
4ed70ce9 FF |
532 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
533 | struct net_device *dev) | |
534 | { | |
535 | /* Just return the original SKB */ | |
536 | return skb; | |
537 | } | |
538 | ||
91da11f8 LB |
539 | |
540 | /* ethtool operations *******************************************************/ | |
541 | static int | |
542 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
543 | { | |
544 | struct dsa_slave_priv *p = netdev_priv(dev); | |
545 | int err; | |
546 | ||
547 | err = -EOPNOTSUPP; | |
548 | if (p->phy != NULL) { | |
549 | err = phy_read_status(p->phy); | |
550 | if (err == 0) | |
551 | err = phy_ethtool_gset(p->phy, cmd); | |
552 | } | |
553 | ||
554 | return err; | |
555 | } | |
556 | ||
557 | static int | |
558 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
559 | { | |
560 | struct dsa_slave_priv *p = netdev_priv(dev); | |
561 | ||
562 | if (p->phy != NULL) | |
563 | return phy_ethtool_sset(p->phy, cmd); | |
564 | ||
565 | return -EOPNOTSUPP; | |
566 | } | |
567 | ||
568 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
569 | struct ethtool_drvinfo *drvinfo) | |
570 | { | |
7826d43f JP |
571 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
572 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
573 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
574 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
575 | } |
576 | ||
3d762a0f GR |
577 | static int dsa_slave_get_regs_len(struct net_device *dev) |
578 | { | |
579 | struct dsa_slave_priv *p = netdev_priv(dev); | |
580 | struct dsa_switch *ds = p->parent; | |
581 | ||
582 | if (ds->drv->get_regs_len) | |
583 | return ds->drv->get_regs_len(ds, p->port); | |
584 | ||
585 | return -EOPNOTSUPP; | |
586 | } | |
587 | ||
588 | static void | |
589 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
590 | { | |
591 | struct dsa_slave_priv *p = netdev_priv(dev); | |
592 | struct dsa_switch *ds = p->parent; | |
593 | ||
594 | if (ds->drv->get_regs) | |
595 | ds->drv->get_regs(ds, p->port, regs, _p); | |
596 | } | |
597 | ||
91da11f8 LB |
598 | static int dsa_slave_nway_reset(struct net_device *dev) |
599 | { | |
600 | struct dsa_slave_priv *p = netdev_priv(dev); | |
601 | ||
602 | if (p->phy != NULL) | |
603 | return genphy_restart_aneg(p->phy); | |
604 | ||
605 | return -EOPNOTSUPP; | |
606 | } | |
607 | ||
608 | static u32 dsa_slave_get_link(struct net_device *dev) | |
609 | { | |
610 | struct dsa_slave_priv *p = netdev_priv(dev); | |
611 | ||
612 | if (p->phy != NULL) { | |
613 | genphy_update_link(p->phy); | |
614 | return p->phy->link; | |
615 | } | |
616 | ||
617 | return -EOPNOTSUPP; | |
618 | } | |
619 | ||
6793abb4 GR |
620 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
621 | { | |
622 | struct dsa_slave_priv *p = netdev_priv(dev); | |
623 | struct dsa_switch *ds = p->parent; | |
624 | ||
625 | if (ds->pd->eeprom_len) | |
626 | return ds->pd->eeprom_len; | |
627 | ||
628 | if (ds->drv->get_eeprom_len) | |
629 | return ds->drv->get_eeprom_len(ds); | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
635 | struct ethtool_eeprom *eeprom, u8 *data) | |
636 | { | |
637 | struct dsa_slave_priv *p = netdev_priv(dev); | |
638 | struct dsa_switch *ds = p->parent; | |
639 | ||
640 | if (ds->drv->get_eeprom) | |
641 | return ds->drv->get_eeprom(ds, eeprom, data); | |
642 | ||
643 | return -EOPNOTSUPP; | |
644 | } | |
645 | ||
646 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
647 | struct ethtool_eeprom *eeprom, u8 *data) | |
648 | { | |
649 | struct dsa_slave_priv *p = netdev_priv(dev); | |
650 | struct dsa_switch *ds = p->parent; | |
651 | ||
652 | if (ds->drv->set_eeprom) | |
653 | return ds->drv->set_eeprom(ds, eeprom, data); | |
654 | ||
655 | return -EOPNOTSUPP; | |
656 | } | |
657 | ||
91da11f8 LB |
658 | static void dsa_slave_get_strings(struct net_device *dev, |
659 | uint32_t stringset, uint8_t *data) | |
660 | { | |
661 | struct dsa_slave_priv *p = netdev_priv(dev); | |
662 | struct dsa_switch *ds = p->parent; | |
663 | ||
664 | if (stringset == ETH_SS_STATS) { | |
665 | int len = ETH_GSTRING_LEN; | |
666 | ||
667 | strncpy(data, "tx_packets", len); | |
668 | strncpy(data + len, "tx_bytes", len); | |
669 | strncpy(data + 2 * len, "rx_packets", len); | |
670 | strncpy(data + 3 * len, "rx_bytes", len); | |
671 | if (ds->drv->get_strings != NULL) | |
672 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
673 | } | |
674 | } | |
675 | ||
676 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
677 | struct ethtool_stats *stats, | |
678 | uint64_t *data) | |
679 | { | |
680 | struct dsa_slave_priv *p = netdev_priv(dev); | |
681 | struct dsa_switch *ds = p->parent; | |
682 | ||
683 | data[0] = p->dev->stats.tx_packets; | |
684 | data[1] = p->dev->stats.tx_bytes; | |
685 | data[2] = p->dev->stats.rx_packets; | |
686 | data[3] = p->dev->stats.rx_bytes; | |
687 | if (ds->drv->get_ethtool_stats != NULL) | |
688 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
689 | } | |
690 | ||
691 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
692 | { | |
693 | struct dsa_slave_priv *p = netdev_priv(dev); | |
694 | struct dsa_switch *ds = p->parent; | |
695 | ||
696 | if (sset == ETH_SS_STATS) { | |
697 | int count; | |
698 | ||
699 | count = 4; | |
700 | if (ds->drv->get_sset_count != NULL) | |
701 | count += ds->drv->get_sset_count(ds); | |
702 | ||
703 | return count; | |
704 | } | |
705 | ||
706 | return -EOPNOTSUPP; | |
707 | } | |
708 | ||
19e57c4e FF |
709 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
710 | { | |
711 | struct dsa_slave_priv *p = netdev_priv(dev); | |
712 | struct dsa_switch *ds = p->parent; | |
713 | ||
714 | if (ds->drv->get_wol) | |
715 | ds->drv->get_wol(ds, p->port, w); | |
716 | } | |
717 | ||
718 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
719 | { | |
720 | struct dsa_slave_priv *p = netdev_priv(dev); | |
721 | struct dsa_switch *ds = p->parent; | |
722 | int ret = -EOPNOTSUPP; | |
723 | ||
724 | if (ds->drv->set_wol) | |
725 | ret = ds->drv->set_wol(ds, p->port, w); | |
726 | ||
727 | return ret; | |
728 | } | |
729 | ||
7905288f FF |
730 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
731 | { | |
732 | struct dsa_slave_priv *p = netdev_priv(dev); | |
733 | struct dsa_switch *ds = p->parent; | |
734 | int ret; | |
735 | ||
736 | if (!ds->drv->set_eee) | |
737 | return -EOPNOTSUPP; | |
738 | ||
739 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
740 | if (ret) | |
741 | return ret; | |
742 | ||
743 | if (p->phy) | |
744 | ret = phy_ethtool_set_eee(p->phy, e); | |
745 | ||
746 | return ret; | |
747 | } | |
748 | ||
749 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
750 | { | |
751 | struct dsa_slave_priv *p = netdev_priv(dev); | |
752 | struct dsa_switch *ds = p->parent; | |
753 | int ret; | |
754 | ||
755 | if (!ds->drv->get_eee) | |
756 | return -EOPNOTSUPP; | |
757 | ||
758 | ret = ds->drv->get_eee(ds, p->port, e); | |
759 | if (ret) | |
760 | return ret; | |
761 | ||
762 | if (p->phy) | |
763 | ret = phy_ethtool_get_eee(p->phy, e); | |
764 | ||
765 | return ret; | |
766 | } | |
767 | ||
04ff53f9 FF |
768 | #ifdef CONFIG_NET_POLL_CONTROLLER |
769 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
770 | struct netpoll_info *ni) | |
771 | { | |
772 | struct dsa_slave_priv *p = netdev_priv(dev); | |
773 | struct dsa_switch *ds = p->parent; | |
774 | struct net_device *master = ds->dst->master_netdev; | |
775 | struct netpoll *netpoll; | |
776 | int err = 0; | |
777 | ||
778 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
779 | if (!netpoll) | |
780 | return -ENOMEM; | |
781 | ||
782 | err = __netpoll_setup(netpoll, master); | |
783 | if (err) { | |
784 | kfree(netpoll); | |
785 | goto out; | |
786 | } | |
787 | ||
788 | p->netpoll = netpoll; | |
789 | out: | |
790 | return err; | |
791 | } | |
792 | ||
793 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
794 | { | |
795 | struct dsa_slave_priv *p = netdev_priv(dev); | |
796 | struct netpoll *netpoll = p->netpoll; | |
797 | ||
798 | if (!netpoll) | |
799 | return; | |
800 | ||
801 | p->netpoll = NULL; | |
802 | ||
803 | __netpoll_free_async(netpoll); | |
804 | } | |
805 | ||
806 | static void dsa_slave_poll_controller(struct net_device *dev) | |
807 | { | |
808 | } | |
809 | #endif | |
810 | ||
91da11f8 LB |
811 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
812 | .get_settings = dsa_slave_get_settings, | |
813 | .set_settings = dsa_slave_set_settings, | |
814 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
815 | .get_regs_len = dsa_slave_get_regs_len, |
816 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
817 | .nway_reset = dsa_slave_nway_reset, |
818 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
819 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
820 | .get_eeprom = dsa_slave_get_eeprom, | |
821 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
822 | .get_strings = dsa_slave_get_strings, |
823 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
824 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
825 | .set_wol = dsa_slave_set_wol, |
826 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
827 | .set_eee = dsa_slave_set_eee, |
828 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
829 | }; |
830 | ||
3e8a72d1 | 831 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
832 | .ndo_open = dsa_slave_open, |
833 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 834 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
835 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
836 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 837 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
838 | .ndo_fdb_add = switchdev_port_fdb_add, |
839 | .ndo_fdb_del = switchdev_port_fdb_del, | |
840 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 841 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 842 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
843 | #ifdef CONFIG_NET_POLL_CONTROLLER |
844 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
845 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
846 | .ndo_poll_controller = dsa_slave_poll_controller, | |
847 | #endif | |
11149536 VD |
848 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
849 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
850 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
98237d43 SF |
851 | }; |
852 | ||
9d47c0a2 | 853 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 854 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 855 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
856 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
857 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
858 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 859 | }; |
91da11f8 | 860 | |
f37db85d FF |
861 | static struct device_type dsa_type = { |
862 | .name = "dsa", | |
863 | }; | |
864 | ||
0d8bcdd3 FF |
865 | static void dsa_slave_adjust_link(struct net_device *dev) |
866 | { | |
867 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 868 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
869 | unsigned int status_changed = 0; |
870 | ||
871 | if (p->old_link != p->phy->link) { | |
872 | status_changed = 1; | |
873 | p->old_link = p->phy->link; | |
874 | } | |
875 | ||
876 | if (p->old_duplex != p->phy->duplex) { | |
877 | status_changed = 1; | |
878 | p->old_duplex = p->phy->duplex; | |
879 | } | |
880 | ||
881 | if (p->old_pause != p->phy->pause) { | |
882 | status_changed = 1; | |
883 | p->old_pause = p->phy->pause; | |
884 | } | |
885 | ||
ec9436ba FF |
886 | if (ds->drv->adjust_link && status_changed) |
887 | ds->drv->adjust_link(ds, p->port, p->phy); | |
888 | ||
0d8bcdd3 FF |
889 | if (status_changed) |
890 | phy_print_status(p->phy); | |
891 | } | |
892 | ||
ce31b31c FF |
893 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
894 | struct fixed_phy_status *status) | |
895 | { | |
b71be352 AL |
896 | struct dsa_slave_priv *p; |
897 | struct dsa_switch *ds; | |
898 | ||
899 | if (dev) { | |
900 | p = netdev_priv(dev); | |
901 | ds = p->parent; | |
902 | if (ds->drv->fixed_link_update) | |
903 | ds->drv->fixed_link_update(ds, p->port, status); | |
904 | } | |
ce31b31c FF |
905 | |
906 | return 0; | |
907 | } | |
908 | ||
91da11f8 | 909 | /* slave device setup *******************************************************/ |
c305c165 | 910 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
911 | struct net_device *slave_dev, |
912 | int addr) | |
c305c165 FF |
913 | { |
914 | struct dsa_switch *ds = p->parent; | |
915 | ||
7f854420 | 916 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
917 | if (!p->phy) { |
918 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 919 | return -ENODEV; |
d25b8e74 | 920 | } |
c305c165 FF |
921 | |
922 | /* Use already configured phy mode */ | |
211c504a FF |
923 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
924 | p->phy_interface = p->phy->interface; | |
c305c165 FF |
925 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
926 | p->phy_interface); | |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
9697f1cd | 931 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
932 | struct net_device *slave_dev) |
933 | { | |
934 | struct dsa_switch *ds = p->parent; | |
935 | struct dsa_chip_data *cd = ds->pd; | |
936 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 937 | bool phy_is_fixed = false; |
6819563e | 938 | u32 phy_flags = 0; |
19334920 | 939 | int mode, ret; |
0d8bcdd3 FF |
940 | |
941 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
942 | mode = of_get_phy_mode(port_dn); |
943 | if (mode < 0) | |
944 | mode = PHY_INTERFACE_MODE_NA; | |
945 | p->phy_interface = mode; | |
0d8bcdd3 FF |
946 | |
947 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
948 | if (of_phy_is_fixed_link(port_dn)) { | |
949 | /* In the case of a fixed PHY, the DT node associated | |
950 | * to the fixed PHY is the Port DT node | |
951 | */ | |
952 | ret = of_phy_register_fixed_link(port_dn); | |
953 | if (ret) { | |
d25b8e74 | 954 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 955 | return ret; |
0d8bcdd3 | 956 | } |
ce31b31c | 957 | phy_is_fixed = true; |
0d8bcdd3 FF |
958 | phy_dn = port_dn; |
959 | } | |
960 | ||
6819563e FF |
961 | if (ds->drv->get_phy_flags) |
962 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
963 | ||
cd28a1a9 | 964 | if (phy_dn) { |
d25b8e74 RK |
965 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
966 | ||
cd28a1a9 FF |
967 | /* If this PHY address is part of phys_mii_mask, which means |
968 | * that we need to divert reads and writes to/from it, then we | |
969 | * want to bind this device using the slave MII bus created by | |
970 | * DSA to make that happen. | |
971 | */ | |
d25b8e74 RK |
972 | if (!phy_is_fixed && phy_id >= 0 && |
973 | (ds->phys_mii_mask & (1 << phy_id))) { | |
974 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
975 | if (ret) { | |
976 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
cd28a1a9 | 977 | return ret; |
d25b8e74 | 978 | } |
cd28a1a9 FF |
979 | } else { |
980 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
981 | dsa_slave_adjust_link, | |
982 | phy_flags, | |
983 | p->phy_interface); | |
984 | } | |
985 | } | |
0d8bcdd3 | 986 | |
ce31b31c FF |
987 | if (p->phy && phy_is_fixed) |
988 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
989 | ||
0d8bcdd3 FF |
990 | /* We could not connect to a designated PHY, so use the switch internal |
991 | * MDIO bus instead | |
992 | */ | |
b31f65fb | 993 | if (!p->phy) { |
cd28a1a9 | 994 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
d25b8e74 RK |
995 | if (ret) { |
996 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret); | |
c305c165 | 997 | return ret; |
d25b8e74 | 998 | } |
b31f65fb | 999 | } |
9697f1cd | 1000 | |
2220943a AL |
1001 | phy_attached_info(p->phy); |
1002 | ||
9697f1cd | 1003 | return 0; |
0d8bcdd3 FF |
1004 | } |
1005 | ||
448b4482 AL |
1006 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1007 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1008 | struct netdev_queue *txq, | |
1009 | void *_unused) | |
1010 | { | |
1011 | lockdep_set_class(&txq->_xmit_lock, | |
1012 | &dsa_slave_netdev_xmit_lock_key); | |
1013 | } | |
1014 | ||
24462549 FF |
1015 | int dsa_slave_suspend(struct net_device *slave_dev) |
1016 | { | |
1017 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1018 | ||
24462549 FF |
1019 | if (p->phy) { |
1020 | phy_stop(p->phy); | |
1021 | p->old_pause = -1; | |
1022 | p->old_link = -1; | |
1023 | p->old_duplex = -1; | |
1024 | phy_suspend(p->phy); | |
1025 | } | |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
1030 | int dsa_slave_resume(struct net_device *slave_dev) | |
1031 | { | |
1032 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1033 | ||
1034 | netif_device_attach(slave_dev); | |
1035 | ||
1036 | if (p->phy) { | |
1037 | phy_resume(p->phy); | |
1038 | phy_start(p->phy); | |
1039 | } | |
1040 | ||
1041 | return 0; | |
1042 | } | |
1043 | ||
d87d6f44 GR |
1044 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
1045 | int port, char *name) | |
91da11f8 | 1046 | { |
e84665c9 | 1047 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
1048 | struct net_device *slave_dev; |
1049 | struct dsa_slave_priv *p; | |
1050 | int ret; | |
1051 | ||
c835a677 TG |
1052 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1053 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1054 | if (slave_dev == NULL) |
d87d6f44 | 1055 | return -ENOMEM; |
91da11f8 LB |
1056 | |
1057 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1058 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1059 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1060 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1061 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1062 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
f37db85d | 1063 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1064 | |
448b4482 AL |
1065 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1066 | NULL); | |
1067 | ||
5075314e AD |
1068 | SET_NETDEV_DEV(slave_dev, parent); |
1069 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
1070 | slave_dev->vlan_features = master->vlan_features; | |
1071 | ||
1072 | p = netdev_priv(slave_dev); | |
1073 | p->dev = slave_dev; | |
1074 | p->parent = ds; | |
1075 | p->port = port; | |
1076 | ||
e84665c9 | 1077 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1078 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1079 | case DSA_TAG_PROTO_DSA: |
5075314e | 1080 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1081 | break; |
1082 | #endif | |
91da11f8 | 1083 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1084 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1085 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1086 | break; |
396138f0 LB |
1087 | #endif |
1088 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1089 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1090 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1091 | break; |
5037d532 FF |
1092 | #endif |
1093 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1094 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1095 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1096 | break; |
91da11f8 LB |
1097 | #endif |
1098 | default: | |
5075314e | 1099 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1100 | break; |
91da11f8 | 1101 | } |
d442ad4a | 1102 | |
0d8bcdd3 FF |
1103 | p->old_pause = -1; |
1104 | p->old_link = -1; | |
1105 | p->old_duplex = -1; | |
1106 | ||
d87d6f44 | 1107 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1108 | ret = register_netdev(slave_dev); |
1109 | if (ret) { | |
a2ae6007 JP |
1110 | netdev_err(master, "error %d registering interface %s\n", |
1111 | ret, slave_dev->name); | |
d87d6f44 | 1112 | ds->ports[port] = NULL; |
91da11f8 | 1113 | free_netdev(slave_dev); |
d87d6f44 | 1114 | return ret; |
91da11f8 LB |
1115 | } |
1116 | ||
1117 | netif_carrier_off(slave_dev); | |
1118 | ||
0071f56e AL |
1119 | ret = dsa_slave_phy_setup(p, slave_dev); |
1120 | if (ret) { | |
1121 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1122 | unregister_netdev(slave_dev); |
0071f56e AL |
1123 | free_netdev(slave_dev); |
1124 | return ret; | |
1125 | } | |
1126 | ||
d87d6f44 | 1127 | return 0; |
91da11f8 | 1128 | } |
b73adef6 | 1129 | |
cda5c15b NA |
1130 | void dsa_slave_destroy(struct net_device *slave_dev) |
1131 | { | |
1132 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1133 | ||
1134 | netif_carrier_off(slave_dev); | |
1135 | if (p->phy) | |
1136 | phy_disconnect(p->phy); | |
1137 | unregister_netdev(slave_dev); | |
1138 | free_netdev(slave_dev); | |
1139 | } | |
1140 | ||
b73adef6 FF |
1141 | static bool dsa_slave_dev_check(struct net_device *dev) |
1142 | { | |
1143 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1144 | } | |
1145 | ||
6debb68a VD |
1146 | static int dsa_slave_port_upper_event(struct net_device *dev, |
1147 | unsigned long event, void *ptr) | |
b73adef6 | 1148 | { |
6debb68a VD |
1149 | struct netdev_notifier_changeupper_info *info = ptr; |
1150 | struct net_device *upper = info->upper_dev; | |
b73adef6 FF |
1151 | int err = 0; |
1152 | ||
6debb68a VD |
1153 | switch (event) { |
1154 | case NETDEV_CHANGEUPPER: | |
1155 | if (netif_is_bridge_master(upper)) { | |
1156 | if (info->linking) | |
1157 | err = dsa_slave_bridge_port_join(dev, upper); | |
1158 | else | |
1159 | dsa_slave_bridge_port_leave(dev); | |
1160 | } | |
b73adef6 | 1161 | |
6debb68a VD |
1162 | break; |
1163 | } | |
1164 | ||
1165 | return notifier_from_errno(err); | |
b73adef6 FF |
1166 | } |
1167 | ||
6debb68a VD |
1168 | static int dsa_slave_port_event(struct net_device *dev, unsigned long event, |
1169 | void *ptr) | |
b73adef6 | 1170 | { |
b73adef6 FF |
1171 | switch (event) { |
1172 | case NETDEV_CHANGEUPPER: | |
6debb68a VD |
1173 | return dsa_slave_port_upper_event(dev, event, ptr); |
1174 | } | |
b73adef6 | 1175 | |
6debb68a VD |
1176 | return NOTIFY_DONE; |
1177 | } | |
b73adef6 | 1178 | |
6debb68a VD |
1179 | int dsa_slave_netdevice_event(struct notifier_block *unused, |
1180 | unsigned long event, void *ptr) | |
1181 | { | |
1182 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1183 | ||
1184 | if (dsa_slave_dev_check(dev)) | |
1185 | return dsa_slave_port_event(dev, event, ptr); | |
b73adef6 | 1186 | |
b73adef6 FF |
1187 | return NOTIFY_DONE; |
1188 | } |