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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 | 52 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x", |
ff04955c | 53 | ds->index, ds->cd->sw_addr); |
c33063d6 | 54 | ds->slave_mii_bus->parent = ds->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 | ||
43c44a9f VD |
107 | if (ds->drv->port_stp_state_set) |
108 | ds->drv->port_stp_state_set(ds, p->port, stp_state); | |
b73adef6 | 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 | ||
43c44a9f VD |
150 | if (ds->drv->port_stp_state_set) |
151 | ds->drv->port_stp_state_set(ds, p->port, BR_STATE_DISABLED); | |
b73adef6 | 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 | 210 | |
79a62eb2 | 211 | if (switchdev_trans_ph_prepare(trans)) { |
76e398a6 | 212 | if (!ds->drv->port_vlan_prepare || !ds->drv->port_vlan_add) |
11149536 VD |
213 | return -EOPNOTSUPP; |
214 | ||
4d5770b3 | 215 | return ds->drv->port_vlan_prepare(ds, p->port, vlan, trans); |
11149536 VD |
216 | } |
217 | ||
4d5770b3 VD |
218 | ds->drv->port_vlan_add(ds, p->port, vlan, trans); |
219 | ||
11149536 VD |
220 | return 0; |
221 | } | |
222 | ||
223 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
8f24f309 | 224 | const struct switchdev_obj_port_vlan *vlan) |
11149536 | 225 | { |
11149536 VD |
226 | struct dsa_slave_priv *p = netdev_priv(dev); |
227 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
228 | |
229 | if (!ds->drv->port_vlan_del) | |
230 | return -EOPNOTSUPP; | |
231 | ||
76e398a6 | 232 | return ds->drv->port_vlan_del(ds, p->port, vlan); |
11149536 VD |
233 | } |
234 | ||
235 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
8f24f309 | 236 | struct switchdev_obj_port_vlan *vlan, |
648b4a99 | 237 | switchdev_obj_dump_cb_t *cb) |
11149536 | 238 | { |
11149536 VD |
239 | struct dsa_slave_priv *p = netdev_priv(dev); |
240 | struct dsa_switch *ds = p->parent; | |
11149536 | 241 | |
65aebfc0 VD |
242 | if (ds->drv->port_vlan_dump) |
243 | return ds->drv->port_vlan_dump(ds, p->port, vlan, cb); | |
244 | ||
477b1845 | 245 | return -EOPNOTSUPP; |
11149536 VD |
246 | } |
247 | ||
ba14d9eb | 248 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
52ba57cf | 249 | const struct switchdev_obj_port_fdb *fdb, |
f8db8348 | 250 | struct switchdev_trans *trans) |
cdf09697 DM |
251 | { |
252 | struct dsa_slave_priv *p = netdev_priv(dev); | |
253 | struct dsa_switch *ds = p->parent; | |
146a3206 | 254 | |
8497aa61 VD |
255 | if (switchdev_trans_ph_prepare(trans)) { |
256 | if (!ds->drv->port_fdb_prepare || !ds->drv->port_fdb_add) | |
257 | return -EOPNOTSUPP; | |
cdf09697 | 258 | |
8497aa61 VD |
259 | return ds->drv->port_fdb_prepare(ds, p->port, fdb, trans); |
260 | } | |
261 | ||
262 | ds->drv->port_fdb_add(ds, p->port, fdb, trans); | |
cdf09697 | 263 | |
8497aa61 | 264 | return 0; |
cdf09697 DM |
265 | } |
266 | ||
ba14d9eb | 267 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
52ba57cf | 268 | const struct switchdev_obj_port_fdb *fdb) |
cdf09697 DM |
269 | { |
270 | struct dsa_slave_priv *p = netdev_priv(dev); | |
271 | struct dsa_switch *ds = p->parent; | |
272 | int ret = -EOPNOTSUPP; | |
273 | ||
2a778e1b | 274 | if (ds->drv->port_fdb_del) |
8057b3e7 | 275 | ret = ds->drv->port_fdb_del(ds, p->port, fdb); |
cdf09697 DM |
276 | |
277 | return ret; | |
278 | } | |
279 | ||
ba14d9eb | 280 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
52ba57cf | 281 | struct switchdev_obj_port_fdb *fdb, |
648b4a99 | 282 | switchdev_obj_dump_cb_t *cb) |
cdf09697 DM |
283 | { |
284 | struct dsa_slave_priv *p = netdev_priv(dev); | |
285 | struct dsa_switch *ds = p->parent; | |
cdf09697 | 286 | |
ea70ba98 VD |
287 | if (ds->drv->port_fdb_dump) |
288 | return ds->drv->port_fdb_dump(ds, p->port, fdb, cb); | |
289 | ||
1a49a2fb | 290 | return -EOPNOTSUPP; |
cdf09697 DM |
291 | } |
292 | ||
91da11f8 LB |
293 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
294 | { | |
295 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
296 | |
297 | if (p->phy != NULL) | |
28b04113 | 298 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
299 | |
300 | return -EOPNOTSUPP; | |
301 | } | |
302 | ||
43c44a9f VD |
303 | static int dsa_slave_stp_state_set(struct net_device *dev, |
304 | const struct switchdev_attr *attr, | |
305 | struct switchdev_trans *trans) | |
b73adef6 FF |
306 | { |
307 | struct dsa_slave_priv *p = netdev_priv(dev); | |
308 | struct dsa_switch *ds = p->parent; | |
b73adef6 | 309 | |
43c44a9f VD |
310 | if (switchdev_trans_ph_prepare(trans)) |
311 | return ds->drv->port_stp_state_set ? 0 : -EOPNOTSUPP; | |
b73adef6 | 312 | |
43c44a9f VD |
313 | ds->drv->port_stp_state_set(ds, p->port, attr->u.stp_state); |
314 | ||
315 | return 0; | |
b73adef6 FF |
316 | } |
317 | ||
fb2dabad VD |
318 | static int dsa_slave_vlan_filtering(struct net_device *dev, |
319 | const struct switchdev_attr *attr, | |
320 | struct switchdev_trans *trans) | |
321 | { | |
322 | struct dsa_slave_priv *p = netdev_priv(dev); | |
323 | struct dsa_switch *ds = p->parent; | |
324 | ||
325 | /* bridge skips -EOPNOTSUPP, so skip the prepare phase */ | |
326 | if (switchdev_trans_ph_prepare(trans)) | |
327 | return 0; | |
328 | ||
329 | if (ds->drv->port_vlan_filtering) | |
330 | return ds->drv->port_vlan_filtering(ds, p->port, | |
331 | attr->u.vlan_filtering); | |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
35636062 | 336 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 337 | const struct switchdev_attr *attr, |
7ea6eb3f | 338 | struct switchdev_trans *trans) |
35636062 | 339 | { |
b8d866ac | 340 | int ret; |
35636062 SF |
341 | |
342 | switch (attr->id) { | |
1f868398 | 343 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
43c44a9f | 344 | ret = dsa_slave_stp_state_set(dev, attr, trans); |
35636062 | 345 | break; |
fb2dabad VD |
346 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
347 | ret = dsa_slave_vlan_filtering(dev, attr, trans); | |
348 | break; | |
35636062 SF |
349 | default: |
350 | ret = -EOPNOTSUPP; | |
351 | break; | |
352 | } | |
353 | ||
354 | return ret; | |
355 | } | |
356 | ||
ba14d9eb | 357 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 358 | const struct switchdev_obj *obj, |
7ea6eb3f | 359 | struct switchdev_trans *trans) |
ba14d9eb VD |
360 | { |
361 | int err; | |
362 | ||
363 | /* For the prepare phase, ensure the full set of changes is feasable in | |
364 | * one go in order to signal a failure properly. If an operation is not | |
365 | * supported, return -EOPNOTSUPP. | |
366 | */ | |
367 | ||
9e8f4a54 | 368 | switch (obj->id) { |
57d80838 | 369 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
370 | err = dsa_slave_port_fdb_add(dev, |
371 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
372 | trans); | |
ba14d9eb | 373 | break; |
57d80838 | 374 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
375 | err = dsa_slave_port_vlan_add(dev, |
376 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
377 | trans); | |
11149536 | 378 | break; |
ba14d9eb VD |
379 | default: |
380 | err = -EOPNOTSUPP; | |
381 | break; | |
382 | } | |
383 | ||
384 | return err; | |
385 | } | |
386 | ||
387 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 388 | const struct switchdev_obj *obj) |
ba14d9eb VD |
389 | { |
390 | int err; | |
391 | ||
9e8f4a54 | 392 | switch (obj->id) { |
57d80838 | 393 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
394 | err = dsa_slave_port_fdb_del(dev, |
395 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
ba14d9eb | 396 | break; |
57d80838 | 397 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
398 | err = dsa_slave_port_vlan_del(dev, |
399 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
11149536 | 400 | break; |
ba14d9eb VD |
401 | default: |
402 | err = -EOPNOTSUPP; | |
403 | break; | |
404 | } | |
405 | ||
406 | return err; | |
407 | } | |
408 | ||
409 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
410 | struct switchdev_obj *obj, |
411 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb VD |
412 | { |
413 | int err; | |
414 | ||
9e8f4a54 | 415 | switch (obj->id) { |
57d80838 | 416 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
417 | err = dsa_slave_port_fdb_dump(dev, |
418 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
419 | cb); | |
ba14d9eb | 420 | break; |
57d80838 | 421 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
422 | err = dsa_slave_port_vlan_dump(dev, |
423 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
424 | cb); | |
11149536 | 425 | break; |
ba14d9eb VD |
426 | default: |
427 | err = -EOPNOTSUPP; | |
428 | break; | |
429 | } | |
430 | ||
431 | return err; | |
432 | } | |
433 | ||
b73adef6 FF |
434 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
435 | struct net_device *br) | |
436 | { | |
437 | struct dsa_slave_priv *p = netdev_priv(dev); | |
438 | struct dsa_switch *ds = p->parent; | |
439 | int ret = -EOPNOTSUPP; | |
440 | ||
441 | p->bridge_dev = br; | |
442 | ||
71327a4e VD |
443 | if (ds->drv->port_bridge_join) |
444 | ret = ds->drv->port_bridge_join(ds, p->port, br); | |
b73adef6 | 445 | |
6debb68a | 446 | return ret == -EOPNOTSUPP ? 0 : ret; |
b73adef6 FF |
447 | } |
448 | ||
16bfa702 | 449 | static void dsa_slave_bridge_port_leave(struct net_device *dev) |
b73adef6 FF |
450 | { |
451 | struct dsa_slave_priv *p = netdev_priv(dev); | |
452 | struct dsa_switch *ds = p->parent; | |
b73adef6 FF |
453 | |
454 | ||
71327a4e | 455 | if (ds->drv->port_bridge_leave) |
16bfa702 | 456 | ds->drv->port_bridge_leave(ds, p->port); |
b73adef6 FF |
457 | |
458 | p->bridge_dev = NULL; | |
459 | ||
460 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
461 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
462 | */ | |
43c44a9f VD |
463 | if (ds->drv->port_stp_state_set) |
464 | ds->drv->port_stp_state_set(ds, p->port, BR_STATE_FORWARDING); | |
b73adef6 FF |
465 | } |
466 | ||
f8e20a9f SF |
467 | static int dsa_slave_port_attr_get(struct net_device *dev, |
468 | struct switchdev_attr *attr) | |
b73adef6 FF |
469 | { |
470 | struct dsa_slave_priv *p = netdev_priv(dev); | |
471 | struct dsa_switch *ds = p->parent; | |
472 | ||
f8e20a9f | 473 | switch (attr->id) { |
1f868398 | 474 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
475 | attr->u.ppid.id_len = sizeof(ds->index); |
476 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
477 | break; |
478 | default: | |
479 | return -EOPNOTSUPP; | |
480 | } | |
b73adef6 FF |
481 | |
482 | return 0; | |
483 | } | |
484 | ||
04ff53f9 FF |
485 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
486 | struct sk_buff *skb) | |
487 | { | |
488 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
489 | if (p->netpoll) | |
490 | netpoll_send_skb(p->netpoll, skb); | |
491 | #else | |
492 | BUG(); | |
493 | #endif | |
494 | return NETDEV_TX_OK; | |
495 | } | |
496 | ||
3e8a72d1 FF |
497 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
498 | { | |
499 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 500 | struct sk_buff *nskb; |
3e8a72d1 | 501 | |
4ed70ce9 FF |
502 | dev->stats.tx_packets++; |
503 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 504 | |
4ed70ce9 FF |
505 | /* Transmit function may have to reallocate the original SKB */ |
506 | nskb = p->xmit(skb, dev); | |
507 | if (!nskb) | |
508 | return NETDEV_TX_OK; | |
5aed85ce | 509 | |
04ff53f9 FF |
510 | /* SKB for netpoll still need to be mangled with the protocol-specific |
511 | * tag to be successfully transmitted | |
512 | */ | |
513 | if (unlikely(netpoll_tx_running(dev))) | |
514 | return dsa_netpoll_send_skb(p, nskb); | |
515 | ||
4ed70ce9 FF |
516 | /* Queue the SKB for transmission on the parent interface, but |
517 | * do not modify its EtherType | |
518 | */ | |
519 | nskb->dev = p->parent->dst->master_netdev; | |
520 | dev_queue_xmit(nskb); | |
5aed85ce FF |
521 | |
522 | return NETDEV_TX_OK; | |
523 | } | |
524 | ||
4ed70ce9 FF |
525 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
526 | struct net_device *dev) | |
527 | { | |
528 | /* Just return the original SKB */ | |
529 | return skb; | |
530 | } | |
531 | ||
91da11f8 LB |
532 | |
533 | /* ethtool operations *******************************************************/ | |
534 | static int | |
535 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
536 | { | |
537 | struct dsa_slave_priv *p = netdev_priv(dev); | |
538 | int err; | |
539 | ||
540 | err = -EOPNOTSUPP; | |
541 | if (p->phy != NULL) { | |
542 | err = phy_read_status(p->phy); | |
543 | if (err == 0) | |
544 | err = phy_ethtool_gset(p->phy, cmd); | |
545 | } | |
546 | ||
547 | return err; | |
548 | } | |
549 | ||
550 | static int | |
551 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
552 | { | |
553 | struct dsa_slave_priv *p = netdev_priv(dev); | |
554 | ||
555 | if (p->phy != NULL) | |
556 | return phy_ethtool_sset(p->phy, cmd); | |
557 | ||
558 | return -EOPNOTSUPP; | |
559 | } | |
560 | ||
561 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
562 | struct ethtool_drvinfo *drvinfo) | |
563 | { | |
7826d43f JP |
564 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
565 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
566 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
567 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
568 | } |
569 | ||
3d762a0f GR |
570 | static int dsa_slave_get_regs_len(struct net_device *dev) |
571 | { | |
572 | struct dsa_slave_priv *p = netdev_priv(dev); | |
573 | struct dsa_switch *ds = p->parent; | |
574 | ||
575 | if (ds->drv->get_regs_len) | |
576 | return ds->drv->get_regs_len(ds, p->port); | |
577 | ||
578 | return -EOPNOTSUPP; | |
579 | } | |
580 | ||
581 | static void | |
582 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
583 | { | |
584 | struct dsa_slave_priv *p = netdev_priv(dev); | |
585 | struct dsa_switch *ds = p->parent; | |
586 | ||
587 | if (ds->drv->get_regs) | |
588 | ds->drv->get_regs(ds, p->port, regs, _p); | |
589 | } | |
590 | ||
91da11f8 LB |
591 | static int dsa_slave_nway_reset(struct net_device *dev) |
592 | { | |
593 | struct dsa_slave_priv *p = netdev_priv(dev); | |
594 | ||
595 | if (p->phy != NULL) | |
596 | return genphy_restart_aneg(p->phy); | |
597 | ||
598 | return -EOPNOTSUPP; | |
599 | } | |
600 | ||
601 | static u32 dsa_slave_get_link(struct net_device *dev) | |
602 | { | |
603 | struct dsa_slave_priv *p = netdev_priv(dev); | |
604 | ||
605 | if (p->phy != NULL) { | |
606 | genphy_update_link(p->phy); | |
607 | return p->phy->link; | |
608 | } | |
609 | ||
610 | return -EOPNOTSUPP; | |
611 | } | |
612 | ||
6793abb4 GR |
613 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
614 | { | |
615 | struct dsa_slave_priv *p = netdev_priv(dev); | |
616 | struct dsa_switch *ds = p->parent; | |
617 | ||
ff04955c AL |
618 | if (ds->cd->eeprom_len) |
619 | return ds->cd->eeprom_len; | |
6793abb4 GR |
620 | |
621 | if (ds->drv->get_eeprom_len) | |
622 | return ds->drv->get_eeprom_len(ds); | |
623 | ||
624 | return 0; | |
625 | } | |
626 | ||
627 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
628 | struct ethtool_eeprom *eeprom, u8 *data) | |
629 | { | |
630 | struct dsa_slave_priv *p = netdev_priv(dev); | |
631 | struct dsa_switch *ds = p->parent; | |
632 | ||
633 | if (ds->drv->get_eeprom) | |
634 | return ds->drv->get_eeprom(ds, eeprom, data); | |
635 | ||
636 | return -EOPNOTSUPP; | |
637 | } | |
638 | ||
639 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
640 | struct ethtool_eeprom *eeprom, u8 *data) | |
641 | { | |
642 | struct dsa_slave_priv *p = netdev_priv(dev); | |
643 | struct dsa_switch *ds = p->parent; | |
644 | ||
645 | if (ds->drv->set_eeprom) | |
646 | return ds->drv->set_eeprom(ds, eeprom, data); | |
647 | ||
648 | return -EOPNOTSUPP; | |
649 | } | |
650 | ||
91da11f8 LB |
651 | static void dsa_slave_get_strings(struct net_device *dev, |
652 | uint32_t stringset, uint8_t *data) | |
653 | { | |
654 | struct dsa_slave_priv *p = netdev_priv(dev); | |
655 | struct dsa_switch *ds = p->parent; | |
656 | ||
657 | if (stringset == ETH_SS_STATS) { | |
658 | int len = ETH_GSTRING_LEN; | |
659 | ||
660 | strncpy(data, "tx_packets", len); | |
661 | strncpy(data + len, "tx_bytes", len); | |
662 | strncpy(data + 2 * len, "rx_packets", len); | |
663 | strncpy(data + 3 * len, "rx_bytes", len); | |
664 | if (ds->drv->get_strings != NULL) | |
665 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
666 | } | |
667 | } | |
668 | ||
badf3ada FF |
669 | static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev, |
670 | struct ethtool_stats *stats, | |
671 | uint64_t *data) | |
672 | { | |
673 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
674 | struct dsa_switch *ds = dst->ds[0]; | |
675 | s8 cpu_port = dst->cpu_port; | |
676 | int count = 0; | |
677 | ||
678 | if (dst->master_ethtool_ops.get_sset_count) { | |
679 | count = dst->master_ethtool_ops.get_sset_count(dev, | |
680 | ETH_SS_STATS); | |
681 | dst->master_ethtool_ops.get_ethtool_stats(dev, stats, data); | |
682 | } | |
683 | ||
684 | if (ds->drv->get_ethtool_stats) | |
685 | ds->drv->get_ethtool_stats(ds, cpu_port, data + count); | |
686 | } | |
687 | ||
688 | static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset) | |
689 | { | |
690 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
691 | struct dsa_switch *ds = dst->ds[0]; | |
692 | int count = 0; | |
693 | ||
694 | if (dst->master_ethtool_ops.get_sset_count) | |
695 | count += dst->master_ethtool_ops.get_sset_count(dev, sset); | |
696 | ||
697 | if (sset == ETH_SS_STATS && ds->drv->get_sset_count) | |
698 | count += ds->drv->get_sset_count(ds); | |
699 | ||
700 | return count; | |
701 | } | |
702 | ||
703 | static void dsa_cpu_port_get_strings(struct net_device *dev, | |
704 | uint32_t stringset, uint8_t *data) | |
705 | { | |
706 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
707 | struct dsa_switch *ds = dst->ds[0]; | |
708 | s8 cpu_port = dst->cpu_port; | |
709 | int len = ETH_GSTRING_LEN; | |
710 | int mcount = 0, count; | |
711 | unsigned int i; | |
712 | uint8_t pfx[4]; | |
713 | uint8_t *ndata; | |
714 | ||
715 | snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port); | |
716 | /* We do not want to be NULL-terminated, since this is a prefix */ | |
717 | pfx[sizeof(pfx) - 1] = '_'; | |
718 | ||
719 | if (dst->master_ethtool_ops.get_sset_count) { | |
720 | mcount = dst->master_ethtool_ops.get_sset_count(dev, | |
721 | ETH_SS_STATS); | |
722 | dst->master_ethtool_ops.get_strings(dev, stringset, data); | |
723 | } | |
724 | ||
725 | if (stringset == ETH_SS_STATS && ds->drv->get_strings) { | |
726 | ndata = data + mcount * len; | |
727 | /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle | |
728 | * the output after to prepend our CPU port prefix we | |
729 | * constructed earlier | |
730 | */ | |
731 | ds->drv->get_strings(ds, cpu_port, ndata); | |
732 | count = ds->drv->get_sset_count(ds); | |
733 | for (i = 0; i < count; i++) { | |
734 | memmove(ndata + (i * len + sizeof(pfx)), | |
735 | ndata + i * len, len - sizeof(pfx)); | |
736 | memcpy(ndata + i * len, pfx, sizeof(pfx)); | |
737 | } | |
738 | } | |
739 | } | |
740 | ||
91da11f8 LB |
741 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, |
742 | struct ethtool_stats *stats, | |
743 | uint64_t *data) | |
744 | { | |
745 | struct dsa_slave_priv *p = netdev_priv(dev); | |
746 | struct dsa_switch *ds = p->parent; | |
747 | ||
46e7b8d8 VD |
748 | data[0] = dev->stats.tx_packets; |
749 | data[1] = dev->stats.tx_bytes; | |
750 | data[2] = dev->stats.rx_packets; | |
751 | data[3] = dev->stats.rx_bytes; | |
91da11f8 LB |
752 | if (ds->drv->get_ethtool_stats != NULL) |
753 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
754 | } | |
755 | ||
756 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
757 | { | |
758 | struct dsa_slave_priv *p = netdev_priv(dev); | |
759 | struct dsa_switch *ds = p->parent; | |
760 | ||
761 | if (sset == ETH_SS_STATS) { | |
762 | int count; | |
763 | ||
764 | count = 4; | |
765 | if (ds->drv->get_sset_count != NULL) | |
766 | count += ds->drv->get_sset_count(ds); | |
767 | ||
768 | return count; | |
769 | } | |
770 | ||
771 | return -EOPNOTSUPP; | |
772 | } | |
773 | ||
19e57c4e FF |
774 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
775 | { | |
776 | struct dsa_slave_priv *p = netdev_priv(dev); | |
777 | struct dsa_switch *ds = p->parent; | |
778 | ||
779 | if (ds->drv->get_wol) | |
780 | ds->drv->get_wol(ds, p->port, w); | |
781 | } | |
782 | ||
783 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
784 | { | |
785 | struct dsa_slave_priv *p = netdev_priv(dev); | |
786 | struct dsa_switch *ds = p->parent; | |
787 | int ret = -EOPNOTSUPP; | |
788 | ||
789 | if (ds->drv->set_wol) | |
790 | ret = ds->drv->set_wol(ds, p->port, w); | |
791 | ||
792 | return ret; | |
793 | } | |
794 | ||
7905288f FF |
795 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
796 | { | |
797 | struct dsa_slave_priv *p = netdev_priv(dev); | |
798 | struct dsa_switch *ds = p->parent; | |
799 | int ret; | |
800 | ||
801 | if (!ds->drv->set_eee) | |
802 | return -EOPNOTSUPP; | |
803 | ||
804 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
805 | if (ret) | |
806 | return ret; | |
807 | ||
808 | if (p->phy) | |
809 | ret = phy_ethtool_set_eee(p->phy, e); | |
810 | ||
811 | return ret; | |
812 | } | |
813 | ||
814 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
815 | { | |
816 | struct dsa_slave_priv *p = netdev_priv(dev); | |
817 | struct dsa_switch *ds = p->parent; | |
818 | int ret; | |
819 | ||
820 | if (!ds->drv->get_eee) | |
821 | return -EOPNOTSUPP; | |
822 | ||
823 | ret = ds->drv->get_eee(ds, p->port, e); | |
824 | if (ret) | |
825 | return ret; | |
826 | ||
827 | if (p->phy) | |
828 | ret = phy_ethtool_get_eee(p->phy, e); | |
829 | ||
830 | return ret; | |
831 | } | |
832 | ||
04ff53f9 FF |
833 | #ifdef CONFIG_NET_POLL_CONTROLLER |
834 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
835 | struct netpoll_info *ni) | |
836 | { | |
837 | struct dsa_slave_priv *p = netdev_priv(dev); | |
838 | struct dsa_switch *ds = p->parent; | |
839 | struct net_device *master = ds->dst->master_netdev; | |
840 | struct netpoll *netpoll; | |
841 | int err = 0; | |
842 | ||
843 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
844 | if (!netpoll) | |
845 | return -ENOMEM; | |
846 | ||
847 | err = __netpoll_setup(netpoll, master); | |
848 | if (err) { | |
849 | kfree(netpoll); | |
850 | goto out; | |
851 | } | |
852 | ||
853 | p->netpoll = netpoll; | |
854 | out: | |
855 | return err; | |
856 | } | |
857 | ||
858 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
859 | { | |
860 | struct dsa_slave_priv *p = netdev_priv(dev); | |
861 | struct netpoll *netpoll = p->netpoll; | |
862 | ||
863 | if (!netpoll) | |
864 | return; | |
865 | ||
866 | p->netpoll = NULL; | |
867 | ||
868 | __netpoll_free_async(netpoll); | |
869 | } | |
870 | ||
871 | static void dsa_slave_poll_controller(struct net_device *dev) | |
872 | { | |
873 | } | |
874 | #endif | |
875 | ||
91da11f8 LB |
876 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
877 | .get_settings = dsa_slave_get_settings, | |
878 | .set_settings = dsa_slave_set_settings, | |
879 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
880 | .get_regs_len = dsa_slave_get_regs_len, |
881 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
882 | .nway_reset = dsa_slave_nway_reset, |
883 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
884 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
885 | .get_eeprom = dsa_slave_get_eeprom, | |
886 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
887 | .get_strings = dsa_slave_get_strings, |
888 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
889 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
890 | .set_wol = dsa_slave_set_wol, |
891 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
892 | .set_eee = dsa_slave_set_eee, |
893 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
894 | }; |
895 | ||
badf3ada FF |
896 | static struct ethtool_ops dsa_cpu_port_ethtool_ops; |
897 | ||
3e8a72d1 | 898 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
899 | .ndo_open = dsa_slave_open, |
900 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 901 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
902 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
903 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 904 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
905 | .ndo_fdb_add = switchdev_port_fdb_add, |
906 | .ndo_fdb_del = switchdev_port_fdb_del, | |
907 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 908 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 909 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
910 | #ifdef CONFIG_NET_POLL_CONTROLLER |
911 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
912 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
913 | .ndo_poll_controller = dsa_slave_poll_controller, | |
914 | #endif | |
11149536 VD |
915 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
916 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
917 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
98237d43 SF |
918 | }; |
919 | ||
9d47c0a2 | 920 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 921 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 922 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
923 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
924 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
925 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 926 | }; |
91da11f8 | 927 | |
f37db85d FF |
928 | static struct device_type dsa_type = { |
929 | .name = "dsa", | |
930 | }; | |
931 | ||
0d8bcdd3 FF |
932 | static void dsa_slave_adjust_link(struct net_device *dev) |
933 | { | |
934 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 935 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
936 | unsigned int status_changed = 0; |
937 | ||
938 | if (p->old_link != p->phy->link) { | |
939 | status_changed = 1; | |
940 | p->old_link = p->phy->link; | |
941 | } | |
942 | ||
943 | if (p->old_duplex != p->phy->duplex) { | |
944 | status_changed = 1; | |
945 | p->old_duplex = p->phy->duplex; | |
946 | } | |
947 | ||
948 | if (p->old_pause != p->phy->pause) { | |
949 | status_changed = 1; | |
950 | p->old_pause = p->phy->pause; | |
951 | } | |
952 | ||
ec9436ba FF |
953 | if (ds->drv->adjust_link && status_changed) |
954 | ds->drv->adjust_link(ds, p->port, p->phy); | |
955 | ||
0d8bcdd3 FF |
956 | if (status_changed) |
957 | phy_print_status(p->phy); | |
958 | } | |
959 | ||
ce31b31c FF |
960 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
961 | struct fixed_phy_status *status) | |
962 | { | |
b71be352 AL |
963 | struct dsa_slave_priv *p; |
964 | struct dsa_switch *ds; | |
965 | ||
966 | if (dev) { | |
967 | p = netdev_priv(dev); | |
968 | ds = p->parent; | |
969 | if (ds->drv->fixed_link_update) | |
970 | ds->drv->fixed_link_update(ds, p->port, status); | |
971 | } | |
ce31b31c FF |
972 | |
973 | return 0; | |
974 | } | |
975 | ||
91da11f8 | 976 | /* slave device setup *******************************************************/ |
c305c165 | 977 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
978 | struct net_device *slave_dev, |
979 | int addr) | |
c305c165 FF |
980 | { |
981 | struct dsa_switch *ds = p->parent; | |
982 | ||
7f854420 | 983 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
984 | if (!p->phy) { |
985 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 986 | return -ENODEV; |
d25b8e74 | 987 | } |
c305c165 FF |
988 | |
989 | /* Use already configured phy mode */ | |
211c504a FF |
990 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
991 | p->phy_interface = p->phy->interface; | |
c305c165 FF |
992 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
993 | p->phy_interface); | |
994 | ||
995 | return 0; | |
996 | } | |
997 | ||
9697f1cd | 998 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
999 | struct net_device *slave_dev) |
1000 | { | |
1001 | struct dsa_switch *ds = p->parent; | |
ff04955c | 1002 | struct dsa_chip_data *cd = ds->cd; |
0d8bcdd3 | 1003 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1004 | bool phy_is_fixed = false; |
6819563e | 1005 | u32 phy_flags = 0; |
19334920 | 1006 | int mode, ret; |
0d8bcdd3 FF |
1007 | |
1008 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
1009 | mode = of_get_phy_mode(port_dn); |
1010 | if (mode < 0) | |
1011 | mode = PHY_INTERFACE_MODE_NA; | |
1012 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1013 | |
1014 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
1015 | if (of_phy_is_fixed_link(port_dn)) { | |
1016 | /* In the case of a fixed PHY, the DT node associated | |
1017 | * to the fixed PHY is the Port DT node | |
1018 | */ | |
1019 | ret = of_phy_register_fixed_link(port_dn); | |
1020 | if (ret) { | |
d25b8e74 | 1021 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1022 | return ret; |
0d8bcdd3 | 1023 | } |
ce31b31c | 1024 | phy_is_fixed = true; |
0d8bcdd3 FF |
1025 | phy_dn = port_dn; |
1026 | } | |
1027 | ||
6819563e FF |
1028 | if (ds->drv->get_phy_flags) |
1029 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
1030 | ||
cd28a1a9 | 1031 | if (phy_dn) { |
d25b8e74 RK |
1032 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1033 | ||
cd28a1a9 FF |
1034 | /* If this PHY address is part of phys_mii_mask, which means |
1035 | * that we need to divert reads and writes to/from it, then we | |
1036 | * want to bind this device using the slave MII bus created by | |
1037 | * DSA to make that happen. | |
1038 | */ | |
d25b8e74 RK |
1039 | if (!phy_is_fixed && phy_id >= 0 && |
1040 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1041 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1042 | if (ret) { | |
1043 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
cd28a1a9 | 1044 | return ret; |
d25b8e74 | 1045 | } |
cd28a1a9 FF |
1046 | } else { |
1047 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1048 | dsa_slave_adjust_link, | |
1049 | phy_flags, | |
1050 | p->phy_interface); | |
1051 | } | |
1052 | } | |
0d8bcdd3 | 1053 | |
ce31b31c FF |
1054 | if (p->phy && phy_is_fixed) |
1055 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1056 | ||
0d8bcdd3 FF |
1057 | /* We could not connect to a designated PHY, so use the switch internal |
1058 | * MDIO bus instead | |
1059 | */ | |
b31f65fb | 1060 | if (!p->phy) { |
cd28a1a9 | 1061 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
d25b8e74 RK |
1062 | if (ret) { |
1063 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret); | |
c305c165 | 1064 | return ret; |
d25b8e74 | 1065 | } |
b31f65fb | 1066 | } |
9697f1cd | 1067 | |
2220943a AL |
1068 | phy_attached_info(p->phy); |
1069 | ||
9697f1cd | 1070 | return 0; |
0d8bcdd3 FF |
1071 | } |
1072 | ||
448b4482 AL |
1073 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1074 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1075 | struct netdev_queue *txq, | |
1076 | void *_unused) | |
1077 | { | |
1078 | lockdep_set_class(&txq->_xmit_lock, | |
1079 | &dsa_slave_netdev_xmit_lock_key); | |
1080 | } | |
1081 | ||
24462549 FF |
1082 | int dsa_slave_suspend(struct net_device *slave_dev) |
1083 | { | |
1084 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1085 | ||
24462549 FF |
1086 | if (p->phy) { |
1087 | phy_stop(p->phy); | |
1088 | p->old_pause = -1; | |
1089 | p->old_link = -1; | |
1090 | p->old_duplex = -1; | |
1091 | phy_suspend(p->phy); | |
1092 | } | |
1093 | ||
1094 | return 0; | |
1095 | } | |
1096 | ||
1097 | int dsa_slave_resume(struct net_device *slave_dev) | |
1098 | { | |
1099 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1100 | ||
1101 | netif_device_attach(slave_dev); | |
1102 | ||
1103 | if (p->phy) { | |
1104 | phy_resume(p->phy); | |
1105 | phy_start(p->phy); | |
1106 | } | |
1107 | ||
1108 | return 0; | |
1109 | } | |
1110 | ||
d87d6f44 GR |
1111 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
1112 | int port, char *name) | |
91da11f8 | 1113 | { |
e84665c9 | 1114 | struct net_device *master = ds->dst->master_netdev; |
badf3ada | 1115 | struct dsa_switch_tree *dst = ds->dst; |
91da11f8 LB |
1116 | struct net_device *slave_dev; |
1117 | struct dsa_slave_priv *p; | |
1118 | int ret; | |
1119 | ||
c835a677 TG |
1120 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1121 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1122 | if (slave_dev == NULL) |
d87d6f44 | 1123 | return -ENOMEM; |
91da11f8 LB |
1124 | |
1125 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1126 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
badf3ada FF |
1127 | if (master->ethtool_ops != &dsa_cpu_port_ethtool_ops) { |
1128 | memcpy(&dst->master_ethtool_ops, master->ethtool_ops, | |
1129 | sizeof(struct ethtool_ops)); | |
1130 | memcpy(&dsa_cpu_port_ethtool_ops, &dst->master_ethtool_ops, | |
1131 | sizeof(struct ethtool_ops)); | |
1132 | dsa_cpu_port_ethtool_ops.get_sset_count = | |
1133 | dsa_cpu_port_get_sset_count; | |
1134 | dsa_cpu_port_ethtool_ops.get_ethtool_stats = | |
1135 | dsa_cpu_port_get_ethtool_stats; | |
1136 | dsa_cpu_port_ethtool_ops.get_strings = | |
1137 | dsa_cpu_port_get_strings; | |
1138 | master->ethtool_ops = &dsa_cpu_port_ethtool_ops; | |
1139 | } | |
2fcc8005 | 1140 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1141 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1142 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1143 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
f37db85d | 1144 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1145 | |
448b4482 AL |
1146 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1147 | NULL); | |
1148 | ||
5075314e | 1149 | SET_NETDEV_DEV(slave_dev, parent); |
ff04955c | 1150 | slave_dev->dev.of_node = ds->cd->port_dn[port]; |
5075314e AD |
1151 | slave_dev->vlan_features = master->vlan_features; |
1152 | ||
1153 | p = netdev_priv(slave_dev); | |
5075314e AD |
1154 | p->parent = ds; |
1155 | p->port = port; | |
1156 | ||
e84665c9 | 1157 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1158 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1159 | case DSA_TAG_PROTO_DSA: |
5075314e | 1160 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1161 | break; |
1162 | #endif | |
91da11f8 | 1163 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1164 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1165 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1166 | break; |
396138f0 LB |
1167 | #endif |
1168 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1169 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1170 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1171 | break; |
5037d532 FF |
1172 | #endif |
1173 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1174 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1175 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1176 | break; |
91da11f8 LB |
1177 | #endif |
1178 | default: | |
5075314e | 1179 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1180 | break; |
91da11f8 | 1181 | } |
d442ad4a | 1182 | |
0d8bcdd3 FF |
1183 | p->old_pause = -1; |
1184 | p->old_link = -1; | |
1185 | p->old_duplex = -1; | |
1186 | ||
d87d6f44 | 1187 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1188 | ret = register_netdev(slave_dev); |
1189 | if (ret) { | |
a2ae6007 JP |
1190 | netdev_err(master, "error %d registering interface %s\n", |
1191 | ret, slave_dev->name); | |
d87d6f44 | 1192 | ds->ports[port] = NULL; |
91da11f8 | 1193 | free_netdev(slave_dev); |
d87d6f44 | 1194 | return ret; |
91da11f8 LB |
1195 | } |
1196 | ||
1197 | netif_carrier_off(slave_dev); | |
1198 | ||
0071f56e AL |
1199 | ret = dsa_slave_phy_setup(p, slave_dev); |
1200 | if (ret) { | |
1201 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1202 | unregister_netdev(slave_dev); |
0071f56e AL |
1203 | free_netdev(slave_dev); |
1204 | return ret; | |
1205 | } | |
1206 | ||
d87d6f44 | 1207 | return 0; |
91da11f8 | 1208 | } |
b73adef6 | 1209 | |
cda5c15b NA |
1210 | void dsa_slave_destroy(struct net_device *slave_dev) |
1211 | { | |
1212 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1213 | ||
1214 | netif_carrier_off(slave_dev); | |
1215 | if (p->phy) | |
1216 | phy_disconnect(p->phy); | |
1217 | unregister_netdev(slave_dev); | |
1218 | free_netdev(slave_dev); | |
1219 | } | |
1220 | ||
b73adef6 FF |
1221 | static bool dsa_slave_dev_check(struct net_device *dev) |
1222 | { | |
1223 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1224 | } | |
1225 | ||
6debb68a VD |
1226 | static int dsa_slave_port_upper_event(struct net_device *dev, |
1227 | unsigned long event, void *ptr) | |
b73adef6 | 1228 | { |
6debb68a VD |
1229 | struct netdev_notifier_changeupper_info *info = ptr; |
1230 | struct net_device *upper = info->upper_dev; | |
b73adef6 FF |
1231 | int err = 0; |
1232 | ||
6debb68a VD |
1233 | switch (event) { |
1234 | case NETDEV_CHANGEUPPER: | |
1235 | if (netif_is_bridge_master(upper)) { | |
1236 | if (info->linking) | |
1237 | err = dsa_slave_bridge_port_join(dev, upper); | |
1238 | else | |
1239 | dsa_slave_bridge_port_leave(dev); | |
1240 | } | |
b73adef6 | 1241 | |
6debb68a VD |
1242 | break; |
1243 | } | |
1244 | ||
1245 | return notifier_from_errno(err); | |
b73adef6 FF |
1246 | } |
1247 | ||
6debb68a VD |
1248 | static int dsa_slave_port_event(struct net_device *dev, unsigned long event, |
1249 | void *ptr) | |
b73adef6 | 1250 | { |
b73adef6 FF |
1251 | switch (event) { |
1252 | case NETDEV_CHANGEUPPER: | |
6debb68a VD |
1253 | return dsa_slave_port_upper_event(dev, event, ptr); |
1254 | } | |
b73adef6 | 1255 | |
6debb68a VD |
1256 | return NOTIFY_DONE; |
1257 | } | |
b73adef6 | 1258 | |
6debb68a VD |
1259 | int dsa_slave_netdevice_event(struct notifier_block *unused, |
1260 | unsigned long event, void *ptr) | |
1261 | { | |
1262 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1263 | ||
1264 | if (dsa_slave_dev_check(dev)) | |
1265 | return dsa_slave_port_event(dev, event, ptr); | |
b73adef6 | 1266 | |
b73adef6 FF |
1267 | return NOTIFY_DONE; |
1268 | } |