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> |
91da11f8 | 13 | #include <linux/phy.h> |
a2820543 | 14 | #include <linux/phy_fixed.h> |
0d8bcdd3 FF |
15 | #include <linux/of_net.h> |
16 | #include <linux/of_mdio.h> | |
91da11f8 LB |
17 | #include "dsa_priv.h" |
18 | ||
19 | /* slave mii_bus handling ***************************************************/ | |
20 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
21 | { | |
22 | struct dsa_switch *ds = bus->priv; | |
23 | ||
0d8bcdd3 | 24 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
25 | return ds->drv->phy_read(ds, addr, reg); |
26 | ||
27 | return 0xffff; | |
28 | } | |
29 | ||
30 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
31 | { | |
32 | struct dsa_switch *ds = bus->priv; | |
33 | ||
0d8bcdd3 | 34 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
35 | return ds->drv->phy_write(ds, addr, reg, val); |
36 | ||
37 | return 0; | |
38 | } | |
39 | ||
40 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
41 | { | |
42 | ds->slave_mii_bus->priv = (void *)ds; | |
43 | ds->slave_mii_bus->name = "dsa slave smi"; | |
44 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
45 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
f490be04 FF |
46 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x", |
47 | ds->index, ds->pd->sw_addr); | |
b4d2394d | 48 | ds->slave_mii_bus->parent = ds->master_dev; |
91da11f8 LB |
49 | } |
50 | ||
51 | ||
52 | /* slave device handling ****************************************************/ | |
c0840801 LB |
53 | static int dsa_slave_init(struct net_device *dev) |
54 | { | |
55 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 56 | |
e84665c9 | 57 | dev->iflink = p->parent->dst->master_netdev->ifindex; |
c0840801 LB |
58 | |
59 | return 0; | |
60 | } | |
61 | ||
91da11f8 LB |
62 | static int dsa_slave_open(struct net_device *dev) |
63 | { | |
df02c6ff | 64 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 65 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 66 | struct dsa_switch *ds = p->parent; |
df02c6ff LB |
67 | int err; |
68 | ||
69 | if (!(master->flags & IFF_UP)) | |
70 | return -ENETDOWN; | |
71 | ||
8feedbb4 | 72 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 73 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
74 | if (err < 0) |
75 | goto out; | |
76 | } | |
77 | ||
78 | if (dev->flags & IFF_ALLMULTI) { | |
79 | err = dev_set_allmulti(master, 1); | |
80 | if (err < 0) | |
81 | goto del_unicast; | |
82 | } | |
83 | if (dev->flags & IFF_PROMISC) { | |
84 | err = dev_set_promiscuity(master, 1); | |
85 | if (err < 0) | |
86 | goto clear_allmulti; | |
87 | } | |
88 | ||
b2f2af21 FF |
89 | if (ds->drv->port_enable) { |
90 | err = ds->drv->port_enable(ds, p->port, p->phy); | |
91 | if (err) | |
92 | goto clear_promisc; | |
93 | } | |
94 | ||
f7f1de51 FF |
95 | if (p->phy) |
96 | phy_start(p->phy); | |
97 | ||
91da11f8 | 98 | return 0; |
df02c6ff | 99 | |
b2f2af21 FF |
100 | clear_promisc: |
101 | if (dev->flags & IFF_PROMISC) | |
102 | dev_set_promiscuity(master, 0); | |
df02c6ff LB |
103 | clear_allmulti: |
104 | if (dev->flags & IFF_ALLMULTI) | |
105 | dev_set_allmulti(master, -1); | |
106 | del_unicast: | |
8feedbb4 | 107 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 108 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
109 | out: |
110 | return err; | |
91da11f8 LB |
111 | } |
112 | ||
113 | static int dsa_slave_close(struct net_device *dev) | |
114 | { | |
df02c6ff | 115 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 116 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 117 | struct dsa_switch *ds = p->parent; |
df02c6ff | 118 | |
f7f1de51 FF |
119 | if (p->phy) |
120 | phy_stop(p->phy); | |
121 | ||
df02c6ff | 122 | dev_mc_unsync(master, dev); |
a748ee24 | 123 | dev_uc_unsync(master, dev); |
df02c6ff LB |
124 | if (dev->flags & IFF_ALLMULTI) |
125 | dev_set_allmulti(master, -1); | |
126 | if (dev->flags & IFF_PROMISC) | |
127 | dev_set_promiscuity(master, -1); | |
128 | ||
8feedbb4 | 129 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 130 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 131 | |
b2f2af21 FF |
132 | if (ds->drv->port_disable) |
133 | ds->drv->port_disable(ds, p->port, p->phy); | |
134 | ||
91da11f8 LB |
135 | return 0; |
136 | } | |
137 | ||
138 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
139 | { | |
140 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 141 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
142 | |
143 | if (change & IFF_ALLMULTI) | |
144 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
145 | if (change & IFF_PROMISC) | |
146 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
147 | } | |
148 | ||
149 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
150 | { | |
151 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 152 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
153 | |
154 | dev_mc_sync(master, dev); | |
a748ee24 | 155 | dev_uc_sync(master, dev); |
91da11f8 LB |
156 | } |
157 | ||
df02c6ff | 158 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 159 | { |
df02c6ff | 160 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 161 | struct net_device *master = p->parent->dst->master_netdev; |
df02c6ff LB |
162 | struct sockaddr *addr = a; |
163 | int err; | |
164 | ||
165 | if (!is_valid_ether_addr(addr->sa_data)) | |
166 | return -EADDRNOTAVAIL; | |
167 | ||
168 | if (!(dev->flags & IFF_UP)) | |
169 | goto out; | |
170 | ||
8feedbb4 | 171 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 172 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
173 | if (err < 0) |
174 | return err; | |
175 | } | |
176 | ||
8feedbb4 | 177 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 178 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
179 | |
180 | out: | |
d08f161a | 181 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
182 | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
187 | { | |
188 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
189 | |
190 | if (p->phy != NULL) | |
28b04113 | 191 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
192 | |
193 | return -EOPNOTSUPP; | |
194 | } | |
195 | ||
3e8a72d1 FF |
196 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
197 | { | |
198 | struct dsa_slave_priv *p = netdev_priv(dev); | |
3e8a72d1 | 199 | |
5075314e | 200 | return p->xmit(skb, dev); |
3e8a72d1 FF |
201 | } |
202 | ||
5aed85ce FF |
203 | static netdev_tx_t dsa_slave_notag_xmit(struct sk_buff *skb, |
204 | struct net_device *dev) | |
205 | { | |
206 | struct dsa_slave_priv *p = netdev_priv(dev); | |
207 | ||
208 | skb->dev = p->parent->dst->master_netdev; | |
209 | dev_queue_xmit(skb); | |
210 | ||
211 | return NETDEV_TX_OK; | |
212 | } | |
213 | ||
91da11f8 LB |
214 | |
215 | /* ethtool operations *******************************************************/ | |
216 | static int | |
217 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
218 | { | |
219 | struct dsa_slave_priv *p = netdev_priv(dev); | |
220 | int err; | |
221 | ||
222 | err = -EOPNOTSUPP; | |
223 | if (p->phy != NULL) { | |
224 | err = phy_read_status(p->phy); | |
225 | if (err == 0) | |
226 | err = phy_ethtool_gset(p->phy, cmd); | |
227 | } | |
228 | ||
229 | return err; | |
230 | } | |
231 | ||
232 | static int | |
233 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
234 | { | |
235 | struct dsa_slave_priv *p = netdev_priv(dev); | |
236 | ||
237 | if (p->phy != NULL) | |
238 | return phy_ethtool_sset(p->phy, cmd); | |
239 | ||
240 | return -EOPNOTSUPP; | |
241 | } | |
242 | ||
243 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
244 | struct ethtool_drvinfo *drvinfo) | |
245 | { | |
7826d43f JP |
246 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
247 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
248 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
249 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
250 | } |
251 | ||
3d762a0f GR |
252 | static int dsa_slave_get_regs_len(struct net_device *dev) |
253 | { | |
254 | struct dsa_slave_priv *p = netdev_priv(dev); | |
255 | struct dsa_switch *ds = p->parent; | |
256 | ||
257 | if (ds->drv->get_regs_len) | |
258 | return ds->drv->get_regs_len(ds, p->port); | |
259 | ||
260 | return -EOPNOTSUPP; | |
261 | } | |
262 | ||
263 | static void | |
264 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
265 | { | |
266 | struct dsa_slave_priv *p = netdev_priv(dev); | |
267 | struct dsa_switch *ds = p->parent; | |
268 | ||
269 | if (ds->drv->get_regs) | |
270 | ds->drv->get_regs(ds, p->port, regs, _p); | |
271 | } | |
272 | ||
91da11f8 LB |
273 | static int dsa_slave_nway_reset(struct net_device *dev) |
274 | { | |
275 | struct dsa_slave_priv *p = netdev_priv(dev); | |
276 | ||
277 | if (p->phy != NULL) | |
278 | return genphy_restart_aneg(p->phy); | |
279 | ||
280 | return -EOPNOTSUPP; | |
281 | } | |
282 | ||
283 | static u32 dsa_slave_get_link(struct net_device *dev) | |
284 | { | |
285 | struct dsa_slave_priv *p = netdev_priv(dev); | |
286 | ||
287 | if (p->phy != NULL) { | |
288 | genphy_update_link(p->phy); | |
289 | return p->phy->link; | |
290 | } | |
291 | ||
292 | return -EOPNOTSUPP; | |
293 | } | |
294 | ||
6793abb4 GR |
295 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
296 | { | |
297 | struct dsa_slave_priv *p = netdev_priv(dev); | |
298 | struct dsa_switch *ds = p->parent; | |
299 | ||
300 | if (ds->pd->eeprom_len) | |
301 | return ds->pd->eeprom_len; | |
302 | ||
303 | if (ds->drv->get_eeprom_len) | |
304 | return ds->drv->get_eeprom_len(ds); | |
305 | ||
306 | return 0; | |
307 | } | |
308 | ||
309 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
310 | struct ethtool_eeprom *eeprom, u8 *data) | |
311 | { | |
312 | struct dsa_slave_priv *p = netdev_priv(dev); | |
313 | struct dsa_switch *ds = p->parent; | |
314 | ||
315 | if (ds->drv->get_eeprom) | |
316 | return ds->drv->get_eeprom(ds, eeprom, data); | |
317 | ||
318 | return -EOPNOTSUPP; | |
319 | } | |
320 | ||
321 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
322 | struct ethtool_eeprom *eeprom, u8 *data) | |
323 | { | |
324 | struct dsa_slave_priv *p = netdev_priv(dev); | |
325 | struct dsa_switch *ds = p->parent; | |
326 | ||
327 | if (ds->drv->set_eeprom) | |
328 | return ds->drv->set_eeprom(ds, eeprom, data); | |
329 | ||
330 | return -EOPNOTSUPP; | |
331 | } | |
332 | ||
91da11f8 LB |
333 | static void dsa_slave_get_strings(struct net_device *dev, |
334 | uint32_t stringset, uint8_t *data) | |
335 | { | |
336 | struct dsa_slave_priv *p = netdev_priv(dev); | |
337 | struct dsa_switch *ds = p->parent; | |
338 | ||
339 | if (stringset == ETH_SS_STATS) { | |
340 | int len = ETH_GSTRING_LEN; | |
341 | ||
342 | strncpy(data, "tx_packets", len); | |
343 | strncpy(data + len, "tx_bytes", len); | |
344 | strncpy(data + 2 * len, "rx_packets", len); | |
345 | strncpy(data + 3 * len, "rx_bytes", len); | |
346 | if (ds->drv->get_strings != NULL) | |
347 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
348 | } | |
349 | } | |
350 | ||
351 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
352 | struct ethtool_stats *stats, | |
353 | uint64_t *data) | |
354 | { | |
355 | struct dsa_slave_priv *p = netdev_priv(dev); | |
356 | struct dsa_switch *ds = p->parent; | |
357 | ||
358 | data[0] = p->dev->stats.tx_packets; | |
359 | data[1] = p->dev->stats.tx_bytes; | |
360 | data[2] = p->dev->stats.rx_packets; | |
361 | data[3] = p->dev->stats.rx_bytes; | |
362 | if (ds->drv->get_ethtool_stats != NULL) | |
363 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
364 | } | |
365 | ||
366 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
367 | { | |
368 | struct dsa_slave_priv *p = netdev_priv(dev); | |
369 | struct dsa_switch *ds = p->parent; | |
370 | ||
371 | if (sset == ETH_SS_STATS) { | |
372 | int count; | |
373 | ||
374 | count = 4; | |
375 | if (ds->drv->get_sset_count != NULL) | |
376 | count += ds->drv->get_sset_count(ds); | |
377 | ||
378 | return count; | |
379 | } | |
380 | ||
381 | return -EOPNOTSUPP; | |
382 | } | |
383 | ||
19e57c4e FF |
384 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
385 | { | |
386 | struct dsa_slave_priv *p = netdev_priv(dev); | |
387 | struct dsa_switch *ds = p->parent; | |
388 | ||
389 | if (ds->drv->get_wol) | |
390 | ds->drv->get_wol(ds, p->port, w); | |
391 | } | |
392 | ||
393 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
394 | { | |
395 | struct dsa_slave_priv *p = netdev_priv(dev); | |
396 | struct dsa_switch *ds = p->parent; | |
397 | int ret = -EOPNOTSUPP; | |
398 | ||
399 | if (ds->drv->set_wol) | |
400 | ret = ds->drv->set_wol(ds, p->port, w); | |
401 | ||
402 | return ret; | |
403 | } | |
404 | ||
7905288f FF |
405 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
406 | { | |
407 | struct dsa_slave_priv *p = netdev_priv(dev); | |
408 | struct dsa_switch *ds = p->parent; | |
409 | int ret; | |
410 | ||
411 | if (!ds->drv->set_eee) | |
412 | return -EOPNOTSUPP; | |
413 | ||
414 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
415 | if (ret) | |
416 | return ret; | |
417 | ||
418 | if (p->phy) | |
419 | ret = phy_ethtool_set_eee(p->phy, e); | |
420 | ||
421 | return ret; | |
422 | } | |
423 | ||
424 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
425 | { | |
426 | struct dsa_slave_priv *p = netdev_priv(dev); | |
427 | struct dsa_switch *ds = p->parent; | |
428 | int ret; | |
429 | ||
430 | if (!ds->drv->get_eee) | |
431 | return -EOPNOTSUPP; | |
432 | ||
433 | ret = ds->drv->get_eee(ds, p->port, e); | |
434 | if (ret) | |
435 | return ret; | |
436 | ||
437 | if (p->phy) | |
438 | ret = phy_ethtool_get_eee(p->phy, e); | |
439 | ||
440 | return ret; | |
441 | } | |
442 | ||
91da11f8 LB |
443 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
444 | .get_settings = dsa_slave_get_settings, | |
445 | .set_settings = dsa_slave_set_settings, | |
446 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
447 | .get_regs_len = dsa_slave_get_regs_len, |
448 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
449 | .nway_reset = dsa_slave_nway_reset, |
450 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
451 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
452 | .get_eeprom = dsa_slave_get_eeprom, | |
453 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
454 | .get_strings = dsa_slave_get_strings, |
455 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
456 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
457 | .set_wol = dsa_slave_set_wol, |
458 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
459 | .set_eee = dsa_slave_set_eee, |
460 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
461 | }; |
462 | ||
3e8a72d1 | 463 | static const struct net_device_ops dsa_slave_netdev_ops = { |
c0840801 | 464 | .ndo_init = dsa_slave_init, |
d442ad4a SH |
465 | .ndo_open = dsa_slave_open, |
466 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 467 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
468 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
469 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a SH |
470 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
471 | .ndo_do_ioctl = dsa_slave_ioctl, | |
472 | }; | |
91da11f8 | 473 | |
0d8bcdd3 FF |
474 | static void dsa_slave_adjust_link(struct net_device *dev) |
475 | { | |
476 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 477 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
478 | unsigned int status_changed = 0; |
479 | ||
480 | if (p->old_link != p->phy->link) { | |
481 | status_changed = 1; | |
482 | p->old_link = p->phy->link; | |
483 | } | |
484 | ||
485 | if (p->old_duplex != p->phy->duplex) { | |
486 | status_changed = 1; | |
487 | p->old_duplex = p->phy->duplex; | |
488 | } | |
489 | ||
490 | if (p->old_pause != p->phy->pause) { | |
491 | status_changed = 1; | |
492 | p->old_pause = p->phy->pause; | |
493 | } | |
494 | ||
ec9436ba FF |
495 | if (ds->drv->adjust_link && status_changed) |
496 | ds->drv->adjust_link(ds, p->port, p->phy); | |
497 | ||
0d8bcdd3 FF |
498 | if (status_changed) |
499 | phy_print_status(p->phy); | |
500 | } | |
501 | ||
ce31b31c FF |
502 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
503 | struct fixed_phy_status *status) | |
504 | { | |
505 | struct dsa_slave_priv *p = netdev_priv(dev); | |
506 | struct dsa_switch *ds = p->parent; | |
507 | ||
508 | if (ds->drv->fixed_link_update) | |
509 | ds->drv->fixed_link_update(ds, p->port, status); | |
510 | ||
511 | return 0; | |
512 | } | |
513 | ||
91da11f8 | 514 | /* slave device setup *******************************************************/ |
9697f1cd | 515 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
516 | struct net_device *slave_dev) |
517 | { | |
518 | struct dsa_switch *ds = p->parent; | |
519 | struct dsa_chip_data *cd = ds->pd; | |
520 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 521 | bool phy_is_fixed = false; |
6819563e | 522 | u32 phy_flags = 0; |
0d8bcdd3 FF |
523 | int ret; |
524 | ||
525 | port_dn = cd->port_dn[p->port]; | |
526 | p->phy_interface = of_get_phy_mode(port_dn); | |
527 | ||
528 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
529 | if (of_phy_is_fixed_link(port_dn)) { | |
530 | /* In the case of a fixed PHY, the DT node associated | |
531 | * to the fixed PHY is the Port DT node | |
532 | */ | |
533 | ret = of_phy_register_fixed_link(port_dn); | |
534 | if (ret) { | |
a2ae6007 | 535 | netdev_err(slave_dev, "failed to register fixed PHY\n"); |
9697f1cd | 536 | return ret; |
0d8bcdd3 | 537 | } |
ce31b31c | 538 | phy_is_fixed = true; |
0d8bcdd3 FF |
539 | phy_dn = port_dn; |
540 | } | |
541 | ||
6819563e FF |
542 | if (ds->drv->get_phy_flags) |
543 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
544 | ||
0d8bcdd3 FF |
545 | if (phy_dn) |
546 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
6819563e | 547 | dsa_slave_adjust_link, phy_flags, |
0d8bcdd3 FF |
548 | p->phy_interface); |
549 | ||
ce31b31c FF |
550 | if (p->phy && phy_is_fixed) |
551 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
552 | ||
0d8bcdd3 FF |
553 | /* We could not connect to a designated PHY, so use the switch internal |
554 | * MDIO bus instead | |
555 | */ | |
b31f65fb | 556 | if (!p->phy) { |
0d8bcdd3 | 557 | p->phy = ds->slave_mii_bus->phy_map[p->port]; |
53013c77 | 558 | if (!p->phy) |
9697f1cd | 559 | return -ENODEV; |
53013c77 | 560 | |
b31f65fb AL |
561 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
562 | p->phy_interface); | |
563 | } else { | |
a2ae6007 JP |
564 | netdev_info(slave_dev, "attached PHY at address %d [%s]\n", |
565 | p->phy->addr, p->phy->drv->name); | |
b31f65fb | 566 | } |
9697f1cd FF |
567 | |
568 | return 0; | |
0d8bcdd3 FF |
569 | } |
570 | ||
24462549 FF |
571 | int dsa_slave_suspend(struct net_device *slave_dev) |
572 | { | |
573 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
574 | ||
575 | netif_device_detach(slave_dev); | |
576 | ||
577 | if (p->phy) { | |
578 | phy_stop(p->phy); | |
579 | p->old_pause = -1; | |
580 | p->old_link = -1; | |
581 | p->old_duplex = -1; | |
582 | phy_suspend(p->phy); | |
583 | } | |
584 | ||
585 | return 0; | |
586 | } | |
587 | ||
588 | int dsa_slave_resume(struct net_device *slave_dev) | |
589 | { | |
590 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
591 | ||
592 | netif_device_attach(slave_dev); | |
593 | ||
594 | if (p->phy) { | |
595 | phy_resume(p->phy); | |
596 | phy_start(p->phy); | |
597 | } | |
598 | ||
599 | return 0; | |
600 | } | |
601 | ||
91da11f8 LB |
602 | struct net_device * |
603 | dsa_slave_create(struct dsa_switch *ds, struct device *parent, | |
604 | int port, char *name) | |
605 | { | |
e84665c9 | 606 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
607 | struct net_device *slave_dev; |
608 | struct dsa_slave_priv *p; | |
609 | int ret; | |
610 | ||
c835a677 TG |
611 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
612 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 LB |
613 | if (slave_dev == NULL) |
614 | return slave_dev; | |
615 | ||
616 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 617 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 618 | eth_hw_addr_inherit(slave_dev, master); |
91da11f8 | 619 | slave_dev->tx_queue_len = 0; |
3e8a72d1 | 620 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
d442ad4a | 621 | |
5075314e AD |
622 | SET_NETDEV_DEV(slave_dev, parent); |
623 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
624 | slave_dev->vlan_features = master->vlan_features; | |
625 | ||
626 | p = netdev_priv(slave_dev); | |
627 | p->dev = slave_dev; | |
628 | p->parent = ds; | |
629 | p->port = port; | |
630 | ||
e84665c9 | 631 | switch (ds->dst->tag_protocol) { |
cf85d08f | 632 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 633 | case DSA_TAG_PROTO_DSA: |
5075314e | 634 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
635 | break; |
636 | #endif | |
91da11f8 | 637 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 638 | case DSA_TAG_PROTO_EDSA: |
5075314e | 639 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 640 | break; |
396138f0 LB |
641 | #endif |
642 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 643 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 644 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 645 | break; |
5037d532 FF |
646 | #endif |
647 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 648 | case DSA_TAG_PROTO_BRCM: |
5075314e | 649 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 650 | break; |
91da11f8 LB |
651 | #endif |
652 | default: | |
5075314e | 653 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 654 | break; |
91da11f8 | 655 | } |
d442ad4a | 656 | |
0d8bcdd3 FF |
657 | p->old_pause = -1; |
658 | p->old_link = -1; | |
659 | p->old_duplex = -1; | |
660 | ||
9697f1cd FF |
661 | ret = dsa_slave_phy_setup(p, slave_dev); |
662 | if (ret) { | |
663 | free_netdev(slave_dev); | |
664 | return NULL; | |
665 | } | |
91da11f8 LB |
666 | |
667 | ret = register_netdev(slave_dev); | |
668 | if (ret) { | |
a2ae6007 JP |
669 | netdev_err(master, "error %d registering interface %s\n", |
670 | ret, slave_dev->name); | |
9697f1cd | 671 | phy_disconnect(p->phy); |
91da11f8 LB |
672 | free_netdev(slave_dev); |
673 | return NULL; | |
674 | } | |
675 | ||
676 | netif_carrier_off(slave_dev); | |
677 | ||
678 | if (p->phy != NULL) { | |
228b16cb | 679 | if (ds->drv->get_phy_flags) |
6819563e FF |
680 | p->phy->dev_flags |= ds->drv->get_phy_flags(ds, port); |
681 | ||
fb28ad35 | 682 | phy_attach(slave_dev, dev_name(&p->phy->dev), |
f9a8f83b | 683 | PHY_INTERFACE_MODE_GMII); |
91da11f8 LB |
684 | |
685 | p->phy->autoneg = AUTONEG_ENABLE; | |
686 | p->phy->speed = 0; | |
687 | p->phy->duplex = 0; | |
688 | p->phy->advertising = p->phy->supported | ADVERTISED_Autoneg; | |
91da11f8 LB |
689 | } |
690 | ||
691 | return slave_dev; | |
692 | } |