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