Commit | Line | Data |
---|---|---|
91da11f8 LB |
1 | /* |
2 | * net/dsa/slave.c - Slave device handling | |
e84665c9 | 3 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/list.h> | |
df02c6ff | 12 | #include <linux/etherdevice.h> |
b73adef6 | 13 | #include <linux/netdevice.h> |
91da11f8 | 14 | #include <linux/phy.h> |
a2820543 | 15 | #include <linux/phy_fixed.h> |
0d8bcdd3 FF |
16 | #include <linux/of_net.h> |
17 | #include <linux/of_mdio.h> | |
b73adef6 | 18 | #include <net/rtnetlink.h> |
98237d43 | 19 | #include <net/switchdev.h> |
b73adef6 | 20 | #include <linux/if_bridge.h> |
91da11f8 LB |
21 | #include "dsa_priv.h" |
22 | ||
23 | /* slave mii_bus handling ***************************************************/ | |
24 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
25 | { | |
26 | struct dsa_switch *ds = bus->priv; | |
27 | ||
0d8bcdd3 | 28 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
29 | return ds->drv->phy_read(ds, addr, reg); |
30 | ||
31 | return 0xffff; | |
32 | } | |
33 | ||
34 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
35 | { | |
36 | struct dsa_switch *ds = bus->priv; | |
37 | ||
0d8bcdd3 | 38 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
39 | return ds->drv->phy_write(ds, addr, reg, val); |
40 | ||
41 | return 0; | |
42 | } | |
43 | ||
44 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
45 | { | |
46 | ds->slave_mii_bus->priv = (void *)ds; | |
47 | ds->slave_mii_bus->name = "dsa slave smi"; | |
48 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
49 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
f490be04 FF |
50 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x", |
51 | ds->index, ds->pd->sw_addr); | |
b4d2394d | 52 | ds->slave_mii_bus->parent = ds->master_dev; |
24df8986 | 53 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
54 | } |
55 | ||
56 | ||
57 | /* slave device handling ****************************************************/ | |
c0840801 LB |
58 | static int dsa_slave_init(struct net_device *dev) |
59 | { | |
60 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 61 | |
e84665c9 | 62 | dev->iflink = p->parent->dst->master_netdev->ifindex; |
c0840801 LB |
63 | |
64 | return 0; | |
65 | } | |
66 | ||
b73adef6 FF |
67 | static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p) |
68 | { | |
69 | return !!p->bridge_dev; | |
70 | } | |
71 | ||
91da11f8 LB |
72 | static int dsa_slave_open(struct net_device *dev) |
73 | { | |
df02c6ff | 74 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 75 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 76 | struct dsa_switch *ds = p->parent; |
b73adef6 FF |
77 | u8 stp_state = dsa_port_is_bridged(p) ? |
78 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; | |
df02c6ff LB |
79 | int err; |
80 | ||
81 | if (!(master->flags & IFF_UP)) | |
82 | return -ENETDOWN; | |
83 | ||
8feedbb4 | 84 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 85 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
86 | if (err < 0) |
87 | goto out; | |
88 | } | |
89 | ||
90 | if (dev->flags & IFF_ALLMULTI) { | |
91 | err = dev_set_allmulti(master, 1); | |
92 | if (err < 0) | |
93 | goto del_unicast; | |
94 | } | |
95 | if (dev->flags & IFF_PROMISC) { | |
96 | err = dev_set_promiscuity(master, 1); | |
97 | if (err < 0) | |
98 | goto clear_allmulti; | |
99 | } | |
100 | ||
b2f2af21 FF |
101 | if (ds->drv->port_enable) { |
102 | err = ds->drv->port_enable(ds, p->port, p->phy); | |
103 | if (err) | |
104 | goto clear_promisc; | |
105 | } | |
106 | ||
b73adef6 FF |
107 | if (ds->drv->port_stp_update) |
108 | ds->drv->port_stp_update(ds, p->port, stp_state); | |
109 | ||
f7f1de51 FF |
110 | if (p->phy) |
111 | phy_start(p->phy); | |
112 | ||
91da11f8 | 113 | return 0; |
df02c6ff | 114 | |
b2f2af21 FF |
115 | clear_promisc: |
116 | if (dev->flags & IFF_PROMISC) | |
117 | dev_set_promiscuity(master, 0); | |
df02c6ff LB |
118 | clear_allmulti: |
119 | if (dev->flags & IFF_ALLMULTI) | |
120 | dev_set_allmulti(master, -1); | |
121 | del_unicast: | |
8feedbb4 | 122 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 123 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
124 | out: |
125 | return err; | |
91da11f8 LB |
126 | } |
127 | ||
128 | static int dsa_slave_close(struct net_device *dev) | |
129 | { | |
df02c6ff | 130 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 131 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 132 | struct dsa_switch *ds = p->parent; |
df02c6ff | 133 | |
f7f1de51 FF |
134 | if (p->phy) |
135 | phy_stop(p->phy); | |
136 | ||
df02c6ff | 137 | dev_mc_unsync(master, dev); |
a748ee24 | 138 | dev_uc_unsync(master, dev); |
df02c6ff LB |
139 | if (dev->flags & IFF_ALLMULTI) |
140 | dev_set_allmulti(master, -1); | |
141 | if (dev->flags & IFF_PROMISC) | |
142 | dev_set_promiscuity(master, -1); | |
143 | ||
8feedbb4 | 144 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 145 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 146 | |
b2f2af21 FF |
147 | if (ds->drv->port_disable) |
148 | ds->drv->port_disable(ds, p->port, p->phy); | |
149 | ||
b73adef6 FF |
150 | if (ds->drv->port_stp_update) |
151 | ds->drv->port_stp_update(ds, p->port, BR_STATE_DISABLED); | |
152 | ||
91da11f8 LB |
153 | return 0; |
154 | } | |
155 | ||
156 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
157 | { | |
158 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 159 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
160 | |
161 | if (change & IFF_ALLMULTI) | |
162 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
163 | if (change & IFF_PROMISC) | |
164 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
165 | } | |
166 | ||
167 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
168 | { | |
169 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 170 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
171 | |
172 | dev_mc_sync(master, dev); | |
a748ee24 | 173 | dev_uc_sync(master, dev); |
91da11f8 LB |
174 | } |
175 | ||
df02c6ff | 176 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 177 | { |
df02c6ff | 178 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 179 | struct net_device *master = p->parent->dst->master_netdev; |
df02c6ff LB |
180 | struct sockaddr *addr = a; |
181 | int err; | |
182 | ||
183 | if (!is_valid_ether_addr(addr->sa_data)) | |
184 | return -EADDRNOTAVAIL; | |
185 | ||
186 | if (!(dev->flags & IFF_UP)) | |
187 | goto out; | |
188 | ||
8feedbb4 | 189 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 190 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
191 | if (err < 0) |
192 | return err; | |
193 | } | |
194 | ||
8feedbb4 | 195 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 196 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
197 | |
198 | out: | |
d08f161a | 199 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
200 | |
201 | return 0; | |
202 | } | |
203 | ||
204 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
205 | { | |
206 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
207 | |
208 | if (p->phy != NULL) | |
28b04113 | 209 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
210 | |
211 | return -EOPNOTSUPP; | |
212 | } | |
213 | ||
b73adef6 FF |
214 | /* Return a bitmask of all ports being currently bridged within a given bridge |
215 | * device. Note that on leave, the mask will still return the bitmask of ports | |
216 | * currently bridged, prior to port removal, and this is exactly what we want. | |
217 | */ | |
218 | static u32 dsa_slave_br_port_mask(struct dsa_switch *ds, | |
219 | struct net_device *bridge) | |
220 | { | |
221 | struct dsa_slave_priv *p; | |
222 | unsigned int port; | |
223 | u32 mask = 0; | |
224 | ||
225 | for (port = 0; port < DSA_MAX_PORTS; port++) { | |
d79d2107 | 226 | if (!dsa_is_port_initialized(ds, port)) |
b73adef6 FF |
227 | continue; |
228 | ||
229 | p = netdev_priv(ds->ports[port]); | |
230 | ||
231 | if (ds->ports[port]->priv_flags & IFF_BRIDGE_PORT && | |
232 | p->bridge_dev == bridge) | |
233 | mask |= 1 << port; | |
234 | } | |
235 | ||
236 | return mask; | |
237 | } | |
238 | ||
239 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) | |
240 | { | |
241 | struct dsa_slave_priv *p = netdev_priv(dev); | |
242 | struct dsa_switch *ds = p->parent; | |
243 | int ret = -EOPNOTSUPP; | |
244 | ||
245 | if (ds->drv->port_stp_update) | |
246 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
251 | static int dsa_slave_bridge_port_join(struct net_device *dev, | |
252 | struct net_device *br) | |
253 | { | |
254 | struct dsa_slave_priv *p = netdev_priv(dev); | |
255 | struct dsa_switch *ds = p->parent; | |
256 | int ret = -EOPNOTSUPP; | |
257 | ||
258 | p->bridge_dev = br; | |
259 | ||
260 | if (ds->drv->port_join_bridge) | |
261 | ret = ds->drv->port_join_bridge(ds, p->port, | |
262 | dsa_slave_br_port_mask(ds, br)); | |
263 | ||
264 | return ret; | |
265 | } | |
266 | ||
267 | static int dsa_slave_bridge_port_leave(struct net_device *dev) | |
268 | { | |
269 | struct dsa_slave_priv *p = netdev_priv(dev); | |
270 | struct dsa_switch *ds = p->parent; | |
271 | int ret = -EOPNOTSUPP; | |
272 | ||
273 | ||
274 | if (ds->drv->port_leave_bridge) | |
275 | ret = ds->drv->port_leave_bridge(ds, p->port, | |
276 | dsa_slave_br_port_mask(ds, p->bridge_dev)); | |
277 | ||
278 | p->bridge_dev = NULL; | |
279 | ||
280 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
281 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
282 | */ | |
283 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
284 | ||
285 | return ret; | |
286 | } | |
287 | ||
288 | static int dsa_slave_parent_id_get(struct net_device *dev, | |
289 | struct netdev_phys_item_id *psid) | |
290 | { | |
291 | struct dsa_slave_priv *p = netdev_priv(dev); | |
292 | struct dsa_switch *ds = p->parent; | |
293 | ||
294 | psid->id_len = sizeof(ds->index); | |
295 | memcpy(&psid->id, &ds->index, psid->id_len); | |
296 | ||
297 | return 0; | |
298 | } | |
299 | ||
3e8a72d1 FF |
300 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
301 | { | |
302 | struct dsa_slave_priv *p = netdev_priv(dev); | |
3e8a72d1 | 303 | |
5075314e | 304 | return p->xmit(skb, dev); |
3e8a72d1 FF |
305 | } |
306 | ||
5aed85ce FF |
307 | static netdev_tx_t dsa_slave_notag_xmit(struct sk_buff *skb, |
308 | struct net_device *dev) | |
309 | { | |
310 | struct dsa_slave_priv *p = netdev_priv(dev); | |
311 | ||
312 | skb->dev = p->parent->dst->master_netdev; | |
313 | dev_queue_xmit(skb); | |
314 | ||
315 | return NETDEV_TX_OK; | |
316 | } | |
317 | ||
91da11f8 LB |
318 | |
319 | /* ethtool operations *******************************************************/ | |
320 | static int | |
321 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
322 | { | |
323 | struct dsa_slave_priv *p = netdev_priv(dev); | |
324 | int err; | |
325 | ||
326 | err = -EOPNOTSUPP; | |
327 | if (p->phy != NULL) { | |
328 | err = phy_read_status(p->phy); | |
329 | if (err == 0) | |
330 | err = phy_ethtool_gset(p->phy, cmd); | |
331 | } | |
332 | ||
333 | return err; | |
334 | } | |
335 | ||
336 | static int | |
337 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
338 | { | |
339 | struct dsa_slave_priv *p = netdev_priv(dev); | |
340 | ||
341 | if (p->phy != NULL) | |
342 | return phy_ethtool_sset(p->phy, cmd); | |
343 | ||
344 | return -EOPNOTSUPP; | |
345 | } | |
346 | ||
347 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
348 | struct ethtool_drvinfo *drvinfo) | |
349 | { | |
7826d43f JP |
350 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
351 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
352 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
353 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
354 | } |
355 | ||
3d762a0f GR |
356 | static int dsa_slave_get_regs_len(struct net_device *dev) |
357 | { | |
358 | struct dsa_slave_priv *p = netdev_priv(dev); | |
359 | struct dsa_switch *ds = p->parent; | |
360 | ||
361 | if (ds->drv->get_regs_len) | |
362 | return ds->drv->get_regs_len(ds, p->port); | |
363 | ||
364 | return -EOPNOTSUPP; | |
365 | } | |
366 | ||
367 | static void | |
368 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
369 | { | |
370 | struct dsa_slave_priv *p = netdev_priv(dev); | |
371 | struct dsa_switch *ds = p->parent; | |
372 | ||
373 | if (ds->drv->get_regs) | |
374 | ds->drv->get_regs(ds, p->port, regs, _p); | |
375 | } | |
376 | ||
91da11f8 LB |
377 | static int dsa_slave_nway_reset(struct net_device *dev) |
378 | { | |
379 | struct dsa_slave_priv *p = netdev_priv(dev); | |
380 | ||
381 | if (p->phy != NULL) | |
382 | return genphy_restart_aneg(p->phy); | |
383 | ||
384 | return -EOPNOTSUPP; | |
385 | } | |
386 | ||
387 | static u32 dsa_slave_get_link(struct net_device *dev) | |
388 | { | |
389 | struct dsa_slave_priv *p = netdev_priv(dev); | |
390 | ||
391 | if (p->phy != NULL) { | |
392 | genphy_update_link(p->phy); | |
393 | return p->phy->link; | |
394 | } | |
395 | ||
396 | return -EOPNOTSUPP; | |
397 | } | |
398 | ||
6793abb4 GR |
399 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
400 | { | |
401 | struct dsa_slave_priv *p = netdev_priv(dev); | |
402 | struct dsa_switch *ds = p->parent; | |
403 | ||
404 | if (ds->pd->eeprom_len) | |
405 | return ds->pd->eeprom_len; | |
406 | ||
407 | if (ds->drv->get_eeprom_len) | |
408 | return ds->drv->get_eeprom_len(ds); | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
413 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
414 | struct ethtool_eeprom *eeprom, u8 *data) | |
415 | { | |
416 | struct dsa_slave_priv *p = netdev_priv(dev); | |
417 | struct dsa_switch *ds = p->parent; | |
418 | ||
419 | if (ds->drv->get_eeprom) | |
420 | return ds->drv->get_eeprom(ds, eeprom, data); | |
421 | ||
422 | return -EOPNOTSUPP; | |
423 | } | |
424 | ||
425 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
426 | struct ethtool_eeprom *eeprom, u8 *data) | |
427 | { | |
428 | struct dsa_slave_priv *p = netdev_priv(dev); | |
429 | struct dsa_switch *ds = p->parent; | |
430 | ||
431 | if (ds->drv->set_eeprom) | |
432 | return ds->drv->set_eeprom(ds, eeprom, data); | |
433 | ||
434 | return -EOPNOTSUPP; | |
435 | } | |
436 | ||
91da11f8 LB |
437 | static void dsa_slave_get_strings(struct net_device *dev, |
438 | uint32_t stringset, uint8_t *data) | |
439 | { | |
440 | struct dsa_slave_priv *p = netdev_priv(dev); | |
441 | struct dsa_switch *ds = p->parent; | |
442 | ||
443 | if (stringset == ETH_SS_STATS) { | |
444 | int len = ETH_GSTRING_LEN; | |
445 | ||
446 | strncpy(data, "tx_packets", len); | |
447 | strncpy(data + len, "tx_bytes", len); | |
448 | strncpy(data + 2 * len, "rx_packets", len); | |
449 | strncpy(data + 3 * len, "rx_bytes", len); | |
450 | if (ds->drv->get_strings != NULL) | |
451 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
452 | } | |
453 | } | |
454 | ||
455 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
456 | struct ethtool_stats *stats, | |
457 | uint64_t *data) | |
458 | { | |
459 | struct dsa_slave_priv *p = netdev_priv(dev); | |
460 | struct dsa_switch *ds = p->parent; | |
461 | ||
462 | data[0] = p->dev->stats.tx_packets; | |
463 | data[1] = p->dev->stats.tx_bytes; | |
464 | data[2] = p->dev->stats.rx_packets; | |
465 | data[3] = p->dev->stats.rx_bytes; | |
466 | if (ds->drv->get_ethtool_stats != NULL) | |
467 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
468 | } | |
469 | ||
470 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
471 | { | |
472 | struct dsa_slave_priv *p = netdev_priv(dev); | |
473 | struct dsa_switch *ds = p->parent; | |
474 | ||
475 | if (sset == ETH_SS_STATS) { | |
476 | int count; | |
477 | ||
478 | count = 4; | |
479 | if (ds->drv->get_sset_count != NULL) | |
480 | count += ds->drv->get_sset_count(ds); | |
481 | ||
482 | return count; | |
483 | } | |
484 | ||
485 | return -EOPNOTSUPP; | |
486 | } | |
487 | ||
19e57c4e FF |
488 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
489 | { | |
490 | struct dsa_slave_priv *p = netdev_priv(dev); | |
491 | struct dsa_switch *ds = p->parent; | |
492 | ||
493 | if (ds->drv->get_wol) | |
494 | ds->drv->get_wol(ds, p->port, w); | |
495 | } | |
496 | ||
497 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
498 | { | |
499 | struct dsa_slave_priv *p = netdev_priv(dev); | |
500 | struct dsa_switch *ds = p->parent; | |
501 | int ret = -EOPNOTSUPP; | |
502 | ||
503 | if (ds->drv->set_wol) | |
504 | ret = ds->drv->set_wol(ds, p->port, w); | |
505 | ||
506 | return ret; | |
507 | } | |
508 | ||
7905288f FF |
509 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
510 | { | |
511 | struct dsa_slave_priv *p = netdev_priv(dev); | |
512 | struct dsa_switch *ds = p->parent; | |
513 | int ret; | |
514 | ||
515 | if (!ds->drv->set_eee) | |
516 | return -EOPNOTSUPP; | |
517 | ||
518 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
519 | if (ret) | |
520 | return ret; | |
521 | ||
522 | if (p->phy) | |
523 | ret = phy_ethtool_set_eee(p->phy, e); | |
524 | ||
525 | return ret; | |
526 | } | |
527 | ||
528 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
529 | { | |
530 | struct dsa_slave_priv *p = netdev_priv(dev); | |
531 | struct dsa_switch *ds = p->parent; | |
532 | int ret; | |
533 | ||
534 | if (!ds->drv->get_eee) | |
535 | return -EOPNOTSUPP; | |
536 | ||
537 | ret = ds->drv->get_eee(ds, p->port, e); | |
538 | if (ret) | |
539 | return ret; | |
540 | ||
541 | if (p->phy) | |
542 | ret = phy_ethtool_get_eee(p->phy, e); | |
543 | ||
544 | return ret; | |
545 | } | |
546 | ||
91da11f8 LB |
547 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
548 | .get_settings = dsa_slave_get_settings, | |
549 | .set_settings = dsa_slave_set_settings, | |
550 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
551 | .get_regs_len = dsa_slave_get_regs_len, |
552 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
553 | .nway_reset = dsa_slave_nway_reset, |
554 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
555 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
556 | .get_eeprom = dsa_slave_get_eeprom, | |
557 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
558 | .get_strings = dsa_slave_get_strings, |
559 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
560 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
561 | .set_wol = dsa_slave_set_wol, |
562 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
563 | .set_eee = dsa_slave_set_eee, |
564 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
565 | }; |
566 | ||
3e8a72d1 | 567 | static const struct net_device_ops dsa_slave_netdev_ops = { |
c0840801 | 568 | .ndo_init = dsa_slave_init, |
d442ad4a SH |
569 | .ndo_open = dsa_slave_open, |
570 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 571 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
572 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
573 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a SH |
574 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
575 | .ndo_do_ioctl = dsa_slave_ioctl, | |
98237d43 SF |
576 | }; |
577 | ||
578 | static const struct swdev_ops dsa_slave_swdev_ops = { | |
579 | .swdev_parent_id_get = dsa_slave_parent_id_get, | |
580 | .swdev_port_stp_update = dsa_slave_stp_update, | |
d442ad4a | 581 | }; |
91da11f8 | 582 | |
0d8bcdd3 FF |
583 | static void dsa_slave_adjust_link(struct net_device *dev) |
584 | { | |
585 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 586 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
587 | unsigned int status_changed = 0; |
588 | ||
589 | if (p->old_link != p->phy->link) { | |
590 | status_changed = 1; | |
591 | p->old_link = p->phy->link; | |
592 | } | |
593 | ||
594 | if (p->old_duplex != p->phy->duplex) { | |
595 | status_changed = 1; | |
596 | p->old_duplex = p->phy->duplex; | |
597 | } | |
598 | ||
599 | if (p->old_pause != p->phy->pause) { | |
600 | status_changed = 1; | |
601 | p->old_pause = p->phy->pause; | |
602 | } | |
603 | ||
ec9436ba FF |
604 | if (ds->drv->adjust_link && status_changed) |
605 | ds->drv->adjust_link(ds, p->port, p->phy); | |
606 | ||
0d8bcdd3 FF |
607 | if (status_changed) |
608 | phy_print_status(p->phy); | |
609 | } | |
610 | ||
ce31b31c FF |
611 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
612 | struct fixed_phy_status *status) | |
613 | { | |
614 | struct dsa_slave_priv *p = netdev_priv(dev); | |
615 | struct dsa_switch *ds = p->parent; | |
616 | ||
617 | if (ds->drv->fixed_link_update) | |
618 | ds->drv->fixed_link_update(ds, p->port, status); | |
619 | ||
620 | return 0; | |
621 | } | |
622 | ||
91da11f8 | 623 | /* slave device setup *******************************************************/ |
c305c165 | 624 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
625 | struct net_device *slave_dev, |
626 | int addr) | |
c305c165 FF |
627 | { |
628 | struct dsa_switch *ds = p->parent; | |
629 | ||
cd28a1a9 | 630 | p->phy = ds->slave_mii_bus->phy_map[addr]; |
c305c165 FF |
631 | if (!p->phy) |
632 | return -ENODEV; | |
633 | ||
634 | /* Use already configured phy mode */ | |
635 | p->phy_interface = p->phy->interface; | |
636 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, | |
637 | p->phy_interface); | |
638 | ||
639 | return 0; | |
640 | } | |
641 | ||
9697f1cd | 642 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
643 | struct net_device *slave_dev) |
644 | { | |
645 | struct dsa_switch *ds = p->parent; | |
646 | struct dsa_chip_data *cd = ds->pd; | |
647 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 648 | bool phy_is_fixed = false; |
6819563e | 649 | u32 phy_flags = 0; |
19334920 | 650 | int mode, ret; |
0d8bcdd3 FF |
651 | |
652 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
653 | mode = of_get_phy_mode(port_dn); |
654 | if (mode < 0) | |
655 | mode = PHY_INTERFACE_MODE_NA; | |
656 | p->phy_interface = mode; | |
0d8bcdd3 FF |
657 | |
658 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
659 | if (of_phy_is_fixed_link(port_dn)) { | |
660 | /* In the case of a fixed PHY, the DT node associated | |
661 | * to the fixed PHY is the Port DT node | |
662 | */ | |
663 | ret = of_phy_register_fixed_link(port_dn); | |
664 | if (ret) { | |
a2ae6007 | 665 | netdev_err(slave_dev, "failed to register fixed PHY\n"); |
9697f1cd | 666 | return ret; |
0d8bcdd3 | 667 | } |
ce31b31c | 668 | phy_is_fixed = true; |
0d8bcdd3 FF |
669 | phy_dn = port_dn; |
670 | } | |
671 | ||
6819563e FF |
672 | if (ds->drv->get_phy_flags) |
673 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
674 | ||
cd28a1a9 FF |
675 | if (phy_dn) { |
676 | ret = of_mdio_parse_addr(&slave_dev->dev, phy_dn); | |
677 | /* If this PHY address is part of phys_mii_mask, which means | |
678 | * that we need to divert reads and writes to/from it, then we | |
679 | * want to bind this device using the slave MII bus created by | |
680 | * DSA to make that happen. | |
681 | */ | |
96026d05 FF |
682 | if (!phy_is_fixed && ret >= 0 && |
683 | (ds->phys_mii_mask & (1 << ret))) { | |
cd28a1a9 FF |
684 | ret = dsa_slave_phy_connect(p, slave_dev, ret); |
685 | if (ret) | |
686 | return ret; | |
687 | } else { | |
688 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
689 | dsa_slave_adjust_link, | |
690 | phy_flags, | |
691 | p->phy_interface); | |
692 | } | |
693 | } | |
0d8bcdd3 | 694 | |
ce31b31c FF |
695 | if (p->phy && phy_is_fixed) |
696 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
697 | ||
0d8bcdd3 FF |
698 | /* We could not connect to a designated PHY, so use the switch internal |
699 | * MDIO bus instead | |
700 | */ | |
b31f65fb | 701 | if (!p->phy) { |
cd28a1a9 | 702 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
c305c165 FF |
703 | if (ret) |
704 | return ret; | |
b31f65fb | 705 | } else { |
a2ae6007 JP |
706 | netdev_info(slave_dev, "attached PHY at address %d [%s]\n", |
707 | p->phy->addr, p->phy->drv->name); | |
b31f65fb | 708 | } |
9697f1cd FF |
709 | |
710 | return 0; | |
0d8bcdd3 FF |
711 | } |
712 | ||
24462549 FF |
713 | int dsa_slave_suspend(struct net_device *slave_dev) |
714 | { | |
715 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
716 | ||
717 | netif_device_detach(slave_dev); | |
718 | ||
719 | if (p->phy) { | |
720 | phy_stop(p->phy); | |
721 | p->old_pause = -1; | |
722 | p->old_link = -1; | |
723 | p->old_duplex = -1; | |
724 | phy_suspend(p->phy); | |
725 | } | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
730 | int dsa_slave_resume(struct net_device *slave_dev) | |
731 | { | |
732 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
733 | ||
734 | netif_device_attach(slave_dev); | |
735 | ||
736 | if (p->phy) { | |
737 | phy_resume(p->phy); | |
738 | phy_start(p->phy); | |
739 | } | |
740 | ||
741 | return 0; | |
742 | } | |
743 | ||
d87d6f44 GR |
744 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
745 | int port, char *name) | |
91da11f8 | 746 | { |
e84665c9 | 747 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
748 | struct net_device *slave_dev; |
749 | struct dsa_slave_priv *p; | |
750 | int ret; | |
751 | ||
c835a677 TG |
752 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
753 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 754 | if (slave_dev == NULL) |
d87d6f44 | 755 | return -ENOMEM; |
91da11f8 LB |
756 | |
757 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 758 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 759 | eth_hw_addr_inherit(slave_dev, master); |
91da11f8 | 760 | slave_dev->tx_queue_len = 0; |
3e8a72d1 | 761 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
98237d43 | 762 | slave_dev->swdev_ops = &dsa_slave_swdev_ops; |
d442ad4a | 763 | |
5075314e AD |
764 | SET_NETDEV_DEV(slave_dev, parent); |
765 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
766 | slave_dev->vlan_features = master->vlan_features; | |
767 | ||
768 | p = netdev_priv(slave_dev); | |
769 | p->dev = slave_dev; | |
770 | p->parent = ds; | |
771 | p->port = port; | |
772 | ||
e84665c9 | 773 | switch (ds->dst->tag_protocol) { |
cf85d08f | 774 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 775 | case DSA_TAG_PROTO_DSA: |
5075314e | 776 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
777 | break; |
778 | #endif | |
91da11f8 | 779 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 780 | case DSA_TAG_PROTO_EDSA: |
5075314e | 781 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 782 | break; |
396138f0 LB |
783 | #endif |
784 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 785 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 786 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 787 | break; |
5037d532 FF |
788 | #endif |
789 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 790 | case DSA_TAG_PROTO_BRCM: |
5075314e | 791 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 792 | break; |
91da11f8 LB |
793 | #endif |
794 | default: | |
5075314e | 795 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 796 | break; |
91da11f8 | 797 | } |
d442ad4a | 798 | |
0d8bcdd3 FF |
799 | p->old_pause = -1; |
800 | p->old_link = -1; | |
801 | p->old_duplex = -1; | |
802 | ||
9697f1cd FF |
803 | ret = dsa_slave_phy_setup(p, slave_dev); |
804 | if (ret) { | |
805 | free_netdev(slave_dev); | |
d87d6f44 | 806 | return ret; |
9697f1cd | 807 | } |
91da11f8 | 808 | |
d87d6f44 | 809 | ds->ports[port] = slave_dev; |
91da11f8 LB |
810 | ret = register_netdev(slave_dev); |
811 | if (ret) { | |
a2ae6007 JP |
812 | netdev_err(master, "error %d registering interface %s\n", |
813 | ret, slave_dev->name); | |
9697f1cd | 814 | phy_disconnect(p->phy); |
d87d6f44 | 815 | ds->ports[port] = NULL; |
91da11f8 | 816 | free_netdev(slave_dev); |
d87d6f44 | 817 | return ret; |
91da11f8 LB |
818 | } |
819 | ||
820 | netif_carrier_off(slave_dev); | |
821 | ||
d87d6f44 | 822 | return 0; |
91da11f8 | 823 | } |
b73adef6 FF |
824 | |
825 | static bool dsa_slave_dev_check(struct net_device *dev) | |
826 | { | |
827 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
828 | } | |
829 | ||
830 | static int dsa_slave_master_changed(struct net_device *dev) | |
831 | { | |
832 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
833 | int err = 0; | |
834 | ||
835 | if (master && master->rtnl_link_ops && | |
836 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
837 | err = dsa_slave_bridge_port_join(dev, master); | |
838 | else | |
839 | err = dsa_slave_bridge_port_leave(dev); | |
840 | ||
841 | return err; | |
842 | } | |
843 | ||
844 | int dsa_slave_netdevice_event(struct notifier_block *unused, | |
845 | unsigned long event, void *ptr) | |
846 | { | |
847 | struct net_device *dev; | |
848 | int err = 0; | |
849 | ||
850 | switch (event) { | |
851 | case NETDEV_CHANGEUPPER: | |
852 | dev = netdev_notifier_info_to_dev(ptr); | |
853 | if (!dsa_slave_dev_check(dev)) | |
854 | goto out; | |
855 | ||
856 | err = dsa_slave_master_changed(dev); | |
857 | if (err) | |
858 | netdev_warn(dev, "failed to reflect master change\n"); | |
859 | ||
860 | break; | |
861 | } | |
862 | ||
863 | out: | |
864 | return NOTIFY_DONE; | |
865 | } |