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> | |
b73adef6 | 18 | #include <net/rtnetlink.h> |
98237d43 | 19 | #include <net/switchdev.h> |
b73adef6 | 20 | #include <linux/if_bridge.h> |
04ff53f9 | 21 | #include <linux/netpoll.h> |
91da11f8 LB |
22 | #include "dsa_priv.h" |
23 | ||
24 | /* slave mii_bus handling ***************************************************/ | |
25 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
26 | { | |
27 | struct dsa_switch *ds = bus->priv; | |
28 | ||
0d8bcdd3 | 29 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
30 | return ds->drv->phy_read(ds, addr, reg); |
31 | ||
32 | return 0xffff; | |
33 | } | |
34 | ||
35 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
36 | { | |
37 | struct dsa_switch *ds = bus->priv; | |
38 | ||
0d8bcdd3 | 39 | if (ds->phys_mii_mask & (1 << addr)) |
91da11f8 LB |
40 | return ds->drv->phy_write(ds, addr, reg, val); |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
45 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
46 | { | |
47 | ds->slave_mii_bus->priv = (void *)ds; | |
48 | ds->slave_mii_bus->name = "dsa slave smi"; | |
49 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
50 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
f490be04 FF |
51 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x", |
52 | ds->index, ds->pd->sw_addr); | |
b4d2394d | 53 | ds->slave_mii_bus->parent = ds->master_dev; |
24df8986 | 54 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
55 | } |
56 | ||
57 | ||
58 | /* slave device handling ****************************************************/ | |
abd2be00 | 59 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
60 | { |
61 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 62 | |
abd2be00 | 63 | return p->parent->dst->master_netdev->ifindex; |
c0840801 LB |
64 | } |
65 | ||
b73adef6 FF |
66 | static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p) |
67 | { | |
68 | return !!p->bridge_dev; | |
69 | } | |
70 | ||
91da11f8 LB |
71 | static int dsa_slave_open(struct net_device *dev) |
72 | { | |
df02c6ff | 73 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 74 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 75 | struct dsa_switch *ds = p->parent; |
b73adef6 FF |
76 | u8 stp_state = dsa_port_is_bridged(p) ? |
77 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; | |
df02c6ff LB |
78 | int err; |
79 | ||
80 | if (!(master->flags & IFF_UP)) | |
81 | return -ENETDOWN; | |
82 | ||
8feedbb4 | 83 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 84 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
85 | if (err < 0) |
86 | goto out; | |
87 | } | |
88 | ||
89 | if (dev->flags & IFF_ALLMULTI) { | |
90 | err = dev_set_allmulti(master, 1); | |
91 | if (err < 0) | |
92 | goto del_unicast; | |
93 | } | |
94 | if (dev->flags & IFF_PROMISC) { | |
95 | err = dev_set_promiscuity(master, 1); | |
96 | if (err < 0) | |
97 | goto clear_allmulti; | |
98 | } | |
99 | ||
b2f2af21 FF |
100 | if (ds->drv->port_enable) { |
101 | err = ds->drv->port_enable(ds, p->port, p->phy); | |
102 | if (err) | |
103 | goto clear_promisc; | |
104 | } | |
105 | ||
b73adef6 FF |
106 | if (ds->drv->port_stp_update) |
107 | ds->drv->port_stp_update(ds, p->port, stp_state); | |
108 | ||
f7f1de51 FF |
109 | if (p->phy) |
110 | phy_start(p->phy); | |
111 | ||
91da11f8 | 112 | return 0; |
df02c6ff | 113 | |
b2f2af21 FF |
114 | clear_promisc: |
115 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 116 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
117 | clear_allmulti: |
118 | if (dev->flags & IFF_ALLMULTI) | |
119 | dev_set_allmulti(master, -1); | |
120 | del_unicast: | |
8feedbb4 | 121 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 122 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
123 | out: |
124 | return err; | |
91da11f8 LB |
125 | } |
126 | ||
127 | static int dsa_slave_close(struct net_device *dev) | |
128 | { | |
df02c6ff | 129 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 130 | struct net_device *master = p->parent->dst->master_netdev; |
b2f2af21 | 131 | struct dsa_switch *ds = p->parent; |
df02c6ff | 132 | |
f7f1de51 FF |
133 | if (p->phy) |
134 | phy_stop(p->phy); | |
135 | ||
df02c6ff | 136 | dev_mc_unsync(master, dev); |
a748ee24 | 137 | dev_uc_unsync(master, dev); |
df02c6ff LB |
138 | if (dev->flags & IFF_ALLMULTI) |
139 | dev_set_allmulti(master, -1); | |
140 | if (dev->flags & IFF_PROMISC) | |
141 | dev_set_promiscuity(master, -1); | |
142 | ||
8feedbb4 | 143 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 144 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 145 | |
b2f2af21 FF |
146 | if (ds->drv->port_disable) |
147 | ds->drv->port_disable(ds, p->port, p->phy); | |
148 | ||
b73adef6 FF |
149 | if (ds->drv->port_stp_update) |
150 | ds->drv->port_stp_update(ds, p->port, BR_STATE_DISABLED); | |
151 | ||
91da11f8 LB |
152 | return 0; |
153 | } | |
154 | ||
155 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
156 | { | |
157 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 158 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
159 | |
160 | if (change & IFF_ALLMULTI) | |
161 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
162 | if (change & IFF_PROMISC) | |
163 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
164 | } | |
165 | ||
166 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
167 | { | |
168 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e84665c9 | 169 | struct net_device *master = p->parent->dst->master_netdev; |
91da11f8 LB |
170 | |
171 | dev_mc_sync(master, dev); | |
a748ee24 | 172 | dev_uc_sync(master, dev); |
91da11f8 LB |
173 | } |
174 | ||
df02c6ff | 175 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 176 | { |
df02c6ff | 177 | struct dsa_slave_priv *p = netdev_priv(dev); |
e84665c9 | 178 | struct net_device *master = p->parent->dst->master_netdev; |
df02c6ff LB |
179 | struct sockaddr *addr = a; |
180 | int err; | |
181 | ||
182 | if (!is_valid_ether_addr(addr->sa_data)) | |
183 | return -EADDRNOTAVAIL; | |
184 | ||
185 | if (!(dev->flags & IFF_UP)) | |
186 | goto out; | |
187 | ||
8feedbb4 | 188 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 189 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
190 | if (err < 0) |
191 | return err; | |
192 | } | |
193 | ||
8feedbb4 | 194 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 195 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
196 | |
197 | out: | |
d08f161a | 198 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
199 | |
200 | return 0; | |
201 | } | |
202 | ||
11149536 VD |
203 | static int dsa_bridge_check_vlan_range(struct dsa_switch *ds, |
204 | const struct net_device *bridge, | |
205 | u16 vid_begin, u16 vid_end) | |
206 | { | |
207 | struct dsa_slave_priv *p; | |
208 | struct net_device *dev, *vlan_br; | |
209 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
210 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
211 | u16 vid; | |
212 | int member, err; | |
213 | ||
214 | if (!ds->drv->vlan_getnext || !vid_begin) | |
215 | return -EOPNOTSUPP; | |
216 | ||
217 | vid = vid_begin - 1; | |
218 | ||
219 | do { | |
220 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
221 | if (err) | |
222 | break; | |
223 | ||
224 | if (vid > vid_end) | |
225 | break; | |
226 | ||
227 | member = find_first_bit(members, DSA_MAX_PORTS); | |
228 | if (member == DSA_MAX_PORTS) | |
229 | continue; | |
230 | ||
231 | dev = ds->ports[member]; | |
232 | p = netdev_priv(dev); | |
233 | vlan_br = p->bridge_dev; | |
234 | if (vlan_br == bridge) | |
235 | continue; | |
236 | ||
237 | netdev_dbg(vlan_br, "hardware VLAN %d already in use\n", vid); | |
238 | return -EOPNOTSUPP; | |
239 | } while (vid < vid_end); | |
240 | ||
241 | return err == -ENOENT ? 0 : err; | |
242 | } | |
243 | ||
244 | static int dsa_slave_port_vlan_add(struct net_device *dev, | |
8f24f309 | 245 | const struct switchdev_obj_port_vlan *vlan, |
f8db8348 | 246 | struct switchdev_trans *trans) |
11149536 | 247 | { |
11149536 VD |
248 | struct dsa_slave_priv *p = netdev_priv(dev); |
249 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
250 | int err; |
251 | ||
79a62eb2 | 252 | if (switchdev_trans_ph_prepare(trans)) { |
76e398a6 | 253 | if (!ds->drv->port_vlan_prepare || !ds->drv->port_vlan_add) |
11149536 VD |
254 | return -EOPNOTSUPP; |
255 | ||
256 | /* If the requested port doesn't belong to the same bridge as | |
257 | * the VLAN members, fallback to software VLAN (hopefully). | |
258 | */ | |
259 | err = dsa_bridge_check_vlan_range(ds, p->bridge_dev, | |
260 | vlan->vid_begin, | |
261 | vlan->vid_end); | |
262 | if (err) | |
263 | return err; | |
76e398a6 VD |
264 | |
265 | err = ds->drv->port_vlan_prepare(ds, p->port, vlan, trans); | |
266 | if (err) | |
267 | return err; | |
79a62eb2 | 268 | } else { |
76e398a6 VD |
269 | err = ds->drv->port_vlan_add(ds, p->port, vlan, trans); |
270 | if (err) | |
271 | return err; | |
11149536 VD |
272 | } |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
277 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
8f24f309 | 278 | const struct switchdev_obj_port_vlan *vlan) |
11149536 | 279 | { |
11149536 VD |
280 | struct dsa_slave_priv *p = netdev_priv(dev); |
281 | struct dsa_switch *ds = p->parent; | |
11149536 VD |
282 | |
283 | if (!ds->drv->port_vlan_del) | |
284 | return -EOPNOTSUPP; | |
285 | ||
76e398a6 | 286 | return ds->drv->port_vlan_del(ds, p->port, vlan); |
11149536 VD |
287 | } |
288 | ||
289 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
8f24f309 | 290 | struct switchdev_obj_port_vlan *vlan, |
648b4a99 | 291 | switchdev_obj_dump_cb_t *cb) |
11149536 | 292 | { |
11149536 VD |
293 | struct dsa_slave_priv *p = netdev_priv(dev); |
294 | struct dsa_switch *ds = p->parent; | |
295 | DECLARE_BITMAP(members, DSA_MAX_PORTS); | |
296 | DECLARE_BITMAP(untagged, DSA_MAX_PORTS); | |
297 | u16 pvid, vid = 0; | |
298 | int err; | |
299 | ||
300 | if (!ds->drv->vlan_getnext || !ds->drv->port_pvid_get) | |
301 | return -EOPNOTSUPP; | |
302 | ||
303 | err = ds->drv->port_pvid_get(ds, p->port, &pvid); | |
304 | if (err) | |
305 | return err; | |
306 | ||
307 | for (;;) { | |
308 | err = ds->drv->vlan_getnext(ds, &vid, members, untagged); | |
309 | if (err) | |
310 | break; | |
311 | ||
312 | if (!test_bit(p->port, members)) | |
313 | continue; | |
314 | ||
315 | memset(vlan, 0, sizeof(*vlan)); | |
316 | vlan->vid_begin = vlan->vid_end = vid; | |
317 | ||
318 | if (vid == pvid) | |
319 | vlan->flags |= BRIDGE_VLAN_INFO_PVID; | |
320 | ||
321 | if (test_bit(p->port, untagged)) | |
322 | vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED; | |
323 | ||
648b4a99 | 324 | err = cb(&vlan->obj); |
11149536 VD |
325 | if (err) |
326 | break; | |
327 | } | |
328 | ||
329 | return err == -ENOENT ? 0 : err; | |
330 | } | |
331 | ||
ba14d9eb | 332 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
52ba57cf | 333 | const struct switchdev_obj_port_fdb *fdb, |
f8db8348 | 334 | struct switchdev_trans *trans) |
cdf09697 DM |
335 | { |
336 | struct dsa_slave_priv *p = netdev_priv(dev); | |
337 | struct dsa_switch *ds = p->parent; | |
146a3206 VD |
338 | int ret; |
339 | ||
340 | if (!ds->drv->port_fdb_prepare || !ds->drv->port_fdb_add) | |
341 | return -EOPNOTSUPP; | |
cdf09697 | 342 | |
79a62eb2 | 343 | if (switchdev_trans_ph_prepare(trans)) |
146a3206 | 344 | ret = ds->drv->port_fdb_prepare(ds, p->port, fdb, trans); |
79a62eb2 | 345 | else |
1f36faf2 | 346 | ret = ds->drv->port_fdb_add(ds, p->port, fdb, trans); |
cdf09697 DM |
347 | |
348 | return ret; | |
349 | } | |
350 | ||
ba14d9eb | 351 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
52ba57cf | 352 | const struct switchdev_obj_port_fdb *fdb) |
cdf09697 DM |
353 | { |
354 | struct dsa_slave_priv *p = netdev_priv(dev); | |
355 | struct dsa_switch *ds = p->parent; | |
356 | int ret = -EOPNOTSUPP; | |
357 | ||
2a778e1b | 358 | if (ds->drv->port_fdb_del) |
8057b3e7 | 359 | ret = ds->drv->port_fdb_del(ds, p->port, fdb); |
cdf09697 DM |
360 | |
361 | return ret; | |
362 | } | |
363 | ||
ba14d9eb | 364 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
52ba57cf | 365 | struct switchdev_obj_port_fdb *fdb, |
648b4a99 | 366 | switchdev_obj_dump_cb_t *cb) |
cdf09697 DM |
367 | { |
368 | struct dsa_slave_priv *p = netdev_priv(dev); | |
369 | struct dsa_switch *ds = p->parent; | |
cdf09697 | 370 | |
ea70ba98 VD |
371 | if (ds->drv->port_fdb_dump) |
372 | return ds->drv->port_fdb_dump(ds, p->port, fdb, cb); | |
373 | ||
1a49a2fb | 374 | return -EOPNOTSUPP; |
cdf09697 DM |
375 | } |
376 | ||
91da11f8 LB |
377 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
378 | { | |
379 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
380 | |
381 | if (p->phy != NULL) | |
28b04113 | 382 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
383 | |
384 | return -EOPNOTSUPP; | |
385 | } | |
386 | ||
b73adef6 FF |
387 | /* Return a bitmask of all ports being currently bridged within a given bridge |
388 | * device. Note that on leave, the mask will still return the bitmask of ports | |
389 | * currently bridged, prior to port removal, and this is exactly what we want. | |
390 | */ | |
391 | static u32 dsa_slave_br_port_mask(struct dsa_switch *ds, | |
392 | struct net_device *bridge) | |
393 | { | |
394 | struct dsa_slave_priv *p; | |
395 | unsigned int port; | |
396 | u32 mask = 0; | |
397 | ||
398 | for (port = 0; port < DSA_MAX_PORTS; port++) { | |
d79d2107 | 399 | if (!dsa_is_port_initialized(ds, port)) |
b73adef6 FF |
400 | continue; |
401 | ||
402 | p = netdev_priv(ds->ports[port]); | |
403 | ||
404 | if (ds->ports[port]->priv_flags & IFF_BRIDGE_PORT && | |
405 | p->bridge_dev == bridge) | |
406 | mask |= 1 << port; | |
407 | } | |
408 | ||
409 | return mask; | |
410 | } | |
411 | ||
412 | static int dsa_slave_stp_update(struct net_device *dev, u8 state) | |
413 | { | |
414 | struct dsa_slave_priv *p = netdev_priv(dev); | |
415 | struct dsa_switch *ds = p->parent; | |
416 | int ret = -EOPNOTSUPP; | |
417 | ||
418 | if (ds->drv->port_stp_update) | |
419 | ret = ds->drv->port_stp_update(ds, p->port, state); | |
420 | ||
421 | return ret; | |
422 | } | |
423 | ||
35636062 | 424 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 425 | const struct switchdev_attr *attr, |
7ea6eb3f | 426 | struct switchdev_trans *trans) |
35636062 | 427 | { |
b8d866ac VD |
428 | struct dsa_slave_priv *p = netdev_priv(dev); |
429 | struct dsa_switch *ds = p->parent; | |
430 | int ret; | |
35636062 SF |
431 | |
432 | switch (attr->id) { | |
1f868398 | 433 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
b8d866ac VD |
434 | if (switchdev_trans_ph_prepare(trans)) |
435 | ret = ds->drv->port_stp_update ? 0 : -EOPNOTSUPP; | |
436 | else | |
437 | ret = ds->drv->port_stp_update(ds, p->port, | |
438 | attr->u.stp_state); | |
35636062 SF |
439 | break; |
440 | default: | |
441 | ret = -EOPNOTSUPP; | |
442 | break; | |
443 | } | |
444 | ||
445 | return ret; | |
446 | } | |
447 | ||
ba14d9eb | 448 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 449 | const struct switchdev_obj *obj, |
7ea6eb3f | 450 | struct switchdev_trans *trans) |
ba14d9eb VD |
451 | { |
452 | int err; | |
453 | ||
454 | /* For the prepare phase, ensure the full set of changes is feasable in | |
455 | * one go in order to signal a failure properly. If an operation is not | |
456 | * supported, return -EOPNOTSUPP. | |
457 | */ | |
458 | ||
9e8f4a54 | 459 | switch (obj->id) { |
57d80838 | 460 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
461 | err = dsa_slave_port_fdb_add(dev, |
462 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
463 | trans); | |
ba14d9eb | 464 | break; |
57d80838 | 465 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
466 | err = dsa_slave_port_vlan_add(dev, |
467 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
468 | trans); | |
11149536 | 469 | break; |
ba14d9eb VD |
470 | default: |
471 | err = -EOPNOTSUPP; | |
472 | break; | |
473 | } | |
474 | ||
475 | return err; | |
476 | } | |
477 | ||
478 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 479 | const struct switchdev_obj *obj) |
ba14d9eb VD |
480 | { |
481 | int err; | |
482 | ||
9e8f4a54 | 483 | switch (obj->id) { |
57d80838 | 484 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
485 | err = dsa_slave_port_fdb_del(dev, |
486 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
ba14d9eb | 487 | break; |
57d80838 | 488 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
489 | err = dsa_slave_port_vlan_del(dev, |
490 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
11149536 | 491 | break; |
ba14d9eb VD |
492 | default: |
493 | err = -EOPNOTSUPP; | |
494 | break; | |
495 | } | |
496 | ||
497 | return err; | |
498 | } | |
499 | ||
500 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
501 | struct switchdev_obj *obj, |
502 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb VD |
503 | { |
504 | int err; | |
505 | ||
9e8f4a54 | 506 | switch (obj->id) { |
57d80838 | 507 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
508 | err = dsa_slave_port_fdb_dump(dev, |
509 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
510 | cb); | |
ba14d9eb | 511 | break; |
57d80838 | 512 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
513 | err = dsa_slave_port_vlan_dump(dev, |
514 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
515 | cb); | |
11149536 | 516 | break; |
ba14d9eb VD |
517 | default: |
518 | err = -EOPNOTSUPP; | |
519 | break; | |
520 | } | |
521 | ||
522 | return err; | |
523 | } | |
524 | ||
b73adef6 FF |
525 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
526 | struct net_device *br) | |
527 | { | |
528 | struct dsa_slave_priv *p = netdev_priv(dev); | |
529 | struct dsa_switch *ds = p->parent; | |
530 | int ret = -EOPNOTSUPP; | |
531 | ||
532 | p->bridge_dev = br; | |
533 | ||
534 | if (ds->drv->port_join_bridge) | |
535 | ret = ds->drv->port_join_bridge(ds, p->port, | |
536 | dsa_slave_br_port_mask(ds, br)); | |
537 | ||
538 | return ret; | |
539 | } | |
540 | ||
541 | static int dsa_slave_bridge_port_leave(struct net_device *dev) | |
542 | { | |
543 | struct dsa_slave_priv *p = netdev_priv(dev); | |
544 | struct dsa_switch *ds = p->parent; | |
545 | int ret = -EOPNOTSUPP; | |
546 | ||
547 | ||
548 | if (ds->drv->port_leave_bridge) | |
549 | ret = ds->drv->port_leave_bridge(ds, p->port, | |
550 | dsa_slave_br_port_mask(ds, p->bridge_dev)); | |
551 | ||
552 | p->bridge_dev = NULL; | |
553 | ||
554 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
555 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
556 | */ | |
557 | dsa_slave_stp_update(dev, BR_STATE_FORWARDING); | |
558 | ||
559 | return ret; | |
560 | } | |
561 | ||
f8e20a9f SF |
562 | static int dsa_slave_port_attr_get(struct net_device *dev, |
563 | struct switchdev_attr *attr) | |
b73adef6 FF |
564 | { |
565 | struct dsa_slave_priv *p = netdev_priv(dev); | |
566 | struct dsa_switch *ds = p->parent; | |
567 | ||
f8e20a9f | 568 | switch (attr->id) { |
1f868398 | 569 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
570 | attr->u.ppid.id_len = sizeof(ds->index); |
571 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
572 | break; |
573 | default: | |
574 | return -EOPNOTSUPP; | |
575 | } | |
b73adef6 FF |
576 | |
577 | return 0; | |
578 | } | |
579 | ||
04ff53f9 FF |
580 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
581 | struct sk_buff *skb) | |
582 | { | |
583 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
584 | if (p->netpoll) | |
585 | netpoll_send_skb(p->netpoll, skb); | |
586 | #else | |
587 | BUG(); | |
588 | #endif | |
589 | return NETDEV_TX_OK; | |
590 | } | |
591 | ||
3e8a72d1 FF |
592 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
593 | { | |
594 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 595 | struct sk_buff *nskb; |
3e8a72d1 | 596 | |
4ed70ce9 FF |
597 | dev->stats.tx_packets++; |
598 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 599 | |
4ed70ce9 FF |
600 | /* Transmit function may have to reallocate the original SKB */ |
601 | nskb = p->xmit(skb, dev); | |
602 | if (!nskb) | |
603 | return NETDEV_TX_OK; | |
5aed85ce | 604 | |
04ff53f9 FF |
605 | /* SKB for netpoll still need to be mangled with the protocol-specific |
606 | * tag to be successfully transmitted | |
607 | */ | |
608 | if (unlikely(netpoll_tx_running(dev))) | |
609 | return dsa_netpoll_send_skb(p, nskb); | |
610 | ||
4ed70ce9 FF |
611 | /* Queue the SKB for transmission on the parent interface, but |
612 | * do not modify its EtherType | |
613 | */ | |
614 | nskb->dev = p->parent->dst->master_netdev; | |
615 | dev_queue_xmit(nskb); | |
5aed85ce FF |
616 | |
617 | return NETDEV_TX_OK; | |
618 | } | |
619 | ||
4ed70ce9 FF |
620 | static struct sk_buff *dsa_slave_notag_xmit(struct sk_buff *skb, |
621 | struct net_device *dev) | |
622 | { | |
623 | /* Just return the original SKB */ | |
624 | return skb; | |
625 | } | |
626 | ||
91da11f8 LB |
627 | |
628 | /* ethtool operations *******************************************************/ | |
629 | static int | |
630 | dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
631 | { | |
632 | struct dsa_slave_priv *p = netdev_priv(dev); | |
633 | int err; | |
634 | ||
635 | err = -EOPNOTSUPP; | |
636 | if (p->phy != NULL) { | |
637 | err = phy_read_status(p->phy); | |
638 | if (err == 0) | |
639 | err = phy_ethtool_gset(p->phy, cmd); | |
640 | } | |
641 | ||
642 | return err; | |
643 | } | |
644 | ||
645 | static int | |
646 | dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) | |
647 | { | |
648 | struct dsa_slave_priv *p = netdev_priv(dev); | |
649 | ||
650 | if (p->phy != NULL) | |
651 | return phy_ethtool_sset(p->phy, cmd); | |
652 | ||
653 | return -EOPNOTSUPP; | |
654 | } | |
655 | ||
656 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
657 | struct ethtool_drvinfo *drvinfo) | |
658 | { | |
7826d43f JP |
659 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
660 | strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version)); | |
661 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); | |
662 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
663 | } |
664 | ||
3d762a0f GR |
665 | static int dsa_slave_get_regs_len(struct net_device *dev) |
666 | { | |
667 | struct dsa_slave_priv *p = netdev_priv(dev); | |
668 | struct dsa_switch *ds = p->parent; | |
669 | ||
670 | if (ds->drv->get_regs_len) | |
671 | return ds->drv->get_regs_len(ds, p->port); | |
672 | ||
673 | return -EOPNOTSUPP; | |
674 | } | |
675 | ||
676 | static void | |
677 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
678 | { | |
679 | struct dsa_slave_priv *p = netdev_priv(dev); | |
680 | struct dsa_switch *ds = p->parent; | |
681 | ||
682 | if (ds->drv->get_regs) | |
683 | ds->drv->get_regs(ds, p->port, regs, _p); | |
684 | } | |
685 | ||
91da11f8 LB |
686 | static int dsa_slave_nway_reset(struct net_device *dev) |
687 | { | |
688 | struct dsa_slave_priv *p = netdev_priv(dev); | |
689 | ||
690 | if (p->phy != NULL) | |
691 | return genphy_restart_aneg(p->phy); | |
692 | ||
693 | return -EOPNOTSUPP; | |
694 | } | |
695 | ||
696 | static u32 dsa_slave_get_link(struct net_device *dev) | |
697 | { | |
698 | struct dsa_slave_priv *p = netdev_priv(dev); | |
699 | ||
700 | if (p->phy != NULL) { | |
701 | genphy_update_link(p->phy); | |
702 | return p->phy->link; | |
703 | } | |
704 | ||
705 | return -EOPNOTSUPP; | |
706 | } | |
707 | ||
6793abb4 GR |
708 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
709 | { | |
710 | struct dsa_slave_priv *p = netdev_priv(dev); | |
711 | struct dsa_switch *ds = p->parent; | |
712 | ||
713 | if (ds->pd->eeprom_len) | |
714 | return ds->pd->eeprom_len; | |
715 | ||
716 | if (ds->drv->get_eeprom_len) | |
717 | return ds->drv->get_eeprom_len(ds); | |
718 | ||
719 | return 0; | |
720 | } | |
721 | ||
722 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
723 | struct ethtool_eeprom *eeprom, u8 *data) | |
724 | { | |
725 | struct dsa_slave_priv *p = netdev_priv(dev); | |
726 | struct dsa_switch *ds = p->parent; | |
727 | ||
728 | if (ds->drv->get_eeprom) | |
729 | return ds->drv->get_eeprom(ds, eeprom, data); | |
730 | ||
731 | return -EOPNOTSUPP; | |
732 | } | |
733 | ||
734 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
735 | struct ethtool_eeprom *eeprom, u8 *data) | |
736 | { | |
737 | struct dsa_slave_priv *p = netdev_priv(dev); | |
738 | struct dsa_switch *ds = p->parent; | |
739 | ||
740 | if (ds->drv->set_eeprom) | |
741 | return ds->drv->set_eeprom(ds, eeprom, data); | |
742 | ||
743 | return -EOPNOTSUPP; | |
744 | } | |
745 | ||
91da11f8 LB |
746 | static void dsa_slave_get_strings(struct net_device *dev, |
747 | uint32_t stringset, uint8_t *data) | |
748 | { | |
749 | struct dsa_slave_priv *p = netdev_priv(dev); | |
750 | struct dsa_switch *ds = p->parent; | |
751 | ||
752 | if (stringset == ETH_SS_STATS) { | |
753 | int len = ETH_GSTRING_LEN; | |
754 | ||
755 | strncpy(data, "tx_packets", len); | |
756 | strncpy(data + len, "tx_bytes", len); | |
757 | strncpy(data + 2 * len, "rx_packets", len); | |
758 | strncpy(data + 3 * len, "rx_bytes", len); | |
759 | if (ds->drv->get_strings != NULL) | |
760 | ds->drv->get_strings(ds, p->port, data + 4 * len); | |
761 | } | |
762 | } | |
763 | ||
764 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
765 | struct ethtool_stats *stats, | |
766 | uint64_t *data) | |
767 | { | |
768 | struct dsa_slave_priv *p = netdev_priv(dev); | |
769 | struct dsa_switch *ds = p->parent; | |
770 | ||
771 | data[0] = p->dev->stats.tx_packets; | |
772 | data[1] = p->dev->stats.tx_bytes; | |
773 | data[2] = p->dev->stats.rx_packets; | |
774 | data[3] = p->dev->stats.rx_bytes; | |
775 | if (ds->drv->get_ethtool_stats != NULL) | |
776 | ds->drv->get_ethtool_stats(ds, p->port, data + 4); | |
777 | } | |
778 | ||
779 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
780 | { | |
781 | struct dsa_slave_priv *p = netdev_priv(dev); | |
782 | struct dsa_switch *ds = p->parent; | |
783 | ||
784 | if (sset == ETH_SS_STATS) { | |
785 | int count; | |
786 | ||
787 | count = 4; | |
788 | if (ds->drv->get_sset_count != NULL) | |
789 | count += ds->drv->get_sset_count(ds); | |
790 | ||
791 | return count; | |
792 | } | |
793 | ||
794 | return -EOPNOTSUPP; | |
795 | } | |
796 | ||
19e57c4e FF |
797 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
798 | { | |
799 | struct dsa_slave_priv *p = netdev_priv(dev); | |
800 | struct dsa_switch *ds = p->parent; | |
801 | ||
802 | if (ds->drv->get_wol) | |
803 | ds->drv->get_wol(ds, p->port, w); | |
804 | } | |
805 | ||
806 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
807 | { | |
808 | struct dsa_slave_priv *p = netdev_priv(dev); | |
809 | struct dsa_switch *ds = p->parent; | |
810 | int ret = -EOPNOTSUPP; | |
811 | ||
812 | if (ds->drv->set_wol) | |
813 | ret = ds->drv->set_wol(ds, p->port, w); | |
814 | ||
815 | return ret; | |
816 | } | |
817 | ||
7905288f FF |
818 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
819 | { | |
820 | struct dsa_slave_priv *p = netdev_priv(dev); | |
821 | struct dsa_switch *ds = p->parent; | |
822 | int ret; | |
823 | ||
824 | if (!ds->drv->set_eee) | |
825 | return -EOPNOTSUPP; | |
826 | ||
827 | ret = ds->drv->set_eee(ds, p->port, p->phy, e); | |
828 | if (ret) | |
829 | return ret; | |
830 | ||
831 | if (p->phy) | |
832 | ret = phy_ethtool_set_eee(p->phy, e); | |
833 | ||
834 | return ret; | |
835 | } | |
836 | ||
837 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
838 | { | |
839 | struct dsa_slave_priv *p = netdev_priv(dev); | |
840 | struct dsa_switch *ds = p->parent; | |
841 | int ret; | |
842 | ||
843 | if (!ds->drv->get_eee) | |
844 | return -EOPNOTSUPP; | |
845 | ||
846 | ret = ds->drv->get_eee(ds, p->port, e); | |
847 | if (ret) | |
848 | return ret; | |
849 | ||
850 | if (p->phy) | |
851 | ret = phy_ethtool_get_eee(p->phy, e); | |
852 | ||
853 | return ret; | |
854 | } | |
855 | ||
04ff53f9 FF |
856 | #ifdef CONFIG_NET_POLL_CONTROLLER |
857 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
858 | struct netpoll_info *ni) | |
859 | { | |
860 | struct dsa_slave_priv *p = netdev_priv(dev); | |
861 | struct dsa_switch *ds = p->parent; | |
862 | struct net_device *master = ds->dst->master_netdev; | |
863 | struct netpoll *netpoll; | |
864 | int err = 0; | |
865 | ||
866 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
867 | if (!netpoll) | |
868 | return -ENOMEM; | |
869 | ||
870 | err = __netpoll_setup(netpoll, master); | |
871 | if (err) { | |
872 | kfree(netpoll); | |
873 | goto out; | |
874 | } | |
875 | ||
876 | p->netpoll = netpoll; | |
877 | out: | |
878 | return err; | |
879 | } | |
880 | ||
881 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
882 | { | |
883 | struct dsa_slave_priv *p = netdev_priv(dev); | |
884 | struct netpoll *netpoll = p->netpoll; | |
885 | ||
886 | if (!netpoll) | |
887 | return; | |
888 | ||
889 | p->netpoll = NULL; | |
890 | ||
891 | __netpoll_free_async(netpoll); | |
892 | } | |
893 | ||
894 | static void dsa_slave_poll_controller(struct net_device *dev) | |
895 | { | |
896 | } | |
897 | #endif | |
898 | ||
91da11f8 LB |
899 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
900 | .get_settings = dsa_slave_get_settings, | |
901 | .set_settings = dsa_slave_set_settings, | |
902 | .get_drvinfo = dsa_slave_get_drvinfo, | |
3d762a0f GR |
903 | .get_regs_len = dsa_slave_get_regs_len, |
904 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
905 | .nway_reset = dsa_slave_nway_reset, |
906 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
907 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
908 | .get_eeprom = dsa_slave_get_eeprom, | |
909 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
910 | .get_strings = dsa_slave_get_strings, |
911 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
912 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
913 | .set_wol = dsa_slave_set_wol, |
914 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
915 | .set_eee = dsa_slave_set_eee, |
916 | .get_eee = dsa_slave_get_eee, | |
91da11f8 LB |
917 | }; |
918 | ||
3e8a72d1 | 919 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
920 | .ndo_open = dsa_slave_open, |
921 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 922 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
923 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
924 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 925 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
926 | .ndo_fdb_add = switchdev_port_fdb_add, |
927 | .ndo_fdb_del = switchdev_port_fdb_del, | |
928 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 929 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 930 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
931 | #ifdef CONFIG_NET_POLL_CONTROLLER |
932 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
933 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
934 | .ndo_poll_controller = dsa_slave_poll_controller, | |
935 | #endif | |
11149536 VD |
936 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
937 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
938 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
98237d43 SF |
939 | }; |
940 | ||
9d47c0a2 | 941 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 942 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 943 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
944 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
945 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
946 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 947 | }; |
91da11f8 | 948 | |
f37db85d FF |
949 | static struct device_type dsa_type = { |
950 | .name = "dsa", | |
951 | }; | |
952 | ||
0d8bcdd3 FF |
953 | static void dsa_slave_adjust_link(struct net_device *dev) |
954 | { | |
955 | struct dsa_slave_priv *p = netdev_priv(dev); | |
ec9436ba | 956 | struct dsa_switch *ds = p->parent; |
0d8bcdd3 FF |
957 | unsigned int status_changed = 0; |
958 | ||
959 | if (p->old_link != p->phy->link) { | |
960 | status_changed = 1; | |
961 | p->old_link = p->phy->link; | |
962 | } | |
963 | ||
964 | if (p->old_duplex != p->phy->duplex) { | |
965 | status_changed = 1; | |
966 | p->old_duplex = p->phy->duplex; | |
967 | } | |
968 | ||
969 | if (p->old_pause != p->phy->pause) { | |
970 | status_changed = 1; | |
971 | p->old_pause = p->phy->pause; | |
972 | } | |
973 | ||
ec9436ba FF |
974 | if (ds->drv->adjust_link && status_changed) |
975 | ds->drv->adjust_link(ds, p->port, p->phy); | |
976 | ||
0d8bcdd3 FF |
977 | if (status_changed) |
978 | phy_print_status(p->phy); | |
979 | } | |
980 | ||
ce31b31c FF |
981 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
982 | struct fixed_phy_status *status) | |
983 | { | |
984 | struct dsa_slave_priv *p = netdev_priv(dev); | |
985 | struct dsa_switch *ds = p->parent; | |
986 | ||
987 | if (ds->drv->fixed_link_update) | |
988 | ds->drv->fixed_link_update(ds, p->port, status); | |
989 | ||
990 | return 0; | |
991 | } | |
992 | ||
91da11f8 | 993 | /* slave device setup *******************************************************/ |
c305c165 | 994 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
995 | struct net_device *slave_dev, |
996 | int addr) | |
c305c165 FF |
997 | { |
998 | struct dsa_switch *ds = p->parent; | |
999 | ||
cd28a1a9 | 1000 | p->phy = ds->slave_mii_bus->phy_map[addr]; |
d25b8e74 RK |
1001 | if (!p->phy) { |
1002 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1003 | return -ENODEV; |
d25b8e74 | 1004 | } |
c305c165 FF |
1005 | |
1006 | /* Use already configured phy mode */ | |
211c504a FF |
1007 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1008 | p->phy_interface = p->phy->interface; | |
c305c165 FF |
1009 | phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1010 | p->phy_interface); | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
9697f1cd | 1015 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1016 | struct net_device *slave_dev) |
1017 | { | |
1018 | struct dsa_switch *ds = p->parent; | |
1019 | struct dsa_chip_data *cd = ds->pd; | |
1020 | struct device_node *phy_dn, *port_dn; | |
ce31b31c | 1021 | bool phy_is_fixed = false; |
6819563e | 1022 | u32 phy_flags = 0; |
19334920 | 1023 | int mode, ret; |
0d8bcdd3 FF |
1024 | |
1025 | port_dn = cd->port_dn[p->port]; | |
19334920 GR |
1026 | mode = of_get_phy_mode(port_dn); |
1027 | if (mode < 0) | |
1028 | mode = PHY_INTERFACE_MODE_NA; | |
1029 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1030 | |
1031 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
1032 | if (of_phy_is_fixed_link(port_dn)) { | |
1033 | /* In the case of a fixed PHY, the DT node associated | |
1034 | * to the fixed PHY is the Port DT node | |
1035 | */ | |
1036 | ret = of_phy_register_fixed_link(port_dn); | |
1037 | if (ret) { | |
d25b8e74 | 1038 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1039 | return ret; |
0d8bcdd3 | 1040 | } |
ce31b31c | 1041 | phy_is_fixed = true; |
0d8bcdd3 FF |
1042 | phy_dn = port_dn; |
1043 | } | |
1044 | ||
6819563e FF |
1045 | if (ds->drv->get_phy_flags) |
1046 | phy_flags = ds->drv->get_phy_flags(ds, p->port); | |
1047 | ||
cd28a1a9 | 1048 | if (phy_dn) { |
d25b8e74 RK |
1049 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1050 | ||
cd28a1a9 FF |
1051 | /* If this PHY address is part of phys_mii_mask, which means |
1052 | * that we need to divert reads and writes to/from it, then we | |
1053 | * want to bind this device using the slave MII bus created by | |
1054 | * DSA to make that happen. | |
1055 | */ | |
d25b8e74 RK |
1056 | if (!phy_is_fixed && phy_id >= 0 && |
1057 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1058 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1059 | if (ret) { | |
1060 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
cd28a1a9 | 1061 | return ret; |
d25b8e74 | 1062 | } |
cd28a1a9 FF |
1063 | } else { |
1064 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1065 | dsa_slave_adjust_link, | |
1066 | phy_flags, | |
1067 | p->phy_interface); | |
1068 | } | |
1069 | } | |
0d8bcdd3 | 1070 | |
ce31b31c FF |
1071 | if (p->phy && phy_is_fixed) |
1072 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1073 | ||
0d8bcdd3 FF |
1074 | /* We could not connect to a designated PHY, so use the switch internal |
1075 | * MDIO bus instead | |
1076 | */ | |
b31f65fb | 1077 | if (!p->phy) { |
cd28a1a9 | 1078 | ret = dsa_slave_phy_connect(p, slave_dev, p->port); |
d25b8e74 RK |
1079 | if (ret) { |
1080 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", p->port, ret); | |
c305c165 | 1081 | return ret; |
d25b8e74 | 1082 | } |
b31f65fb | 1083 | } else { |
a2ae6007 JP |
1084 | netdev_info(slave_dev, "attached PHY at address %d [%s]\n", |
1085 | p->phy->addr, p->phy->drv->name); | |
b31f65fb | 1086 | } |
9697f1cd FF |
1087 | |
1088 | return 0; | |
0d8bcdd3 FF |
1089 | } |
1090 | ||
448b4482 AL |
1091 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1092 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1093 | struct netdev_queue *txq, | |
1094 | void *_unused) | |
1095 | { | |
1096 | lockdep_set_class(&txq->_xmit_lock, | |
1097 | &dsa_slave_netdev_xmit_lock_key); | |
1098 | } | |
1099 | ||
24462549 FF |
1100 | int dsa_slave_suspend(struct net_device *slave_dev) |
1101 | { | |
1102 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1103 | ||
24462549 FF |
1104 | if (p->phy) { |
1105 | phy_stop(p->phy); | |
1106 | p->old_pause = -1; | |
1107 | p->old_link = -1; | |
1108 | p->old_duplex = -1; | |
1109 | phy_suspend(p->phy); | |
1110 | } | |
1111 | ||
1112 | return 0; | |
1113 | } | |
1114 | ||
1115 | int dsa_slave_resume(struct net_device *slave_dev) | |
1116 | { | |
1117 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1118 | ||
1119 | netif_device_attach(slave_dev); | |
1120 | ||
1121 | if (p->phy) { | |
1122 | phy_resume(p->phy); | |
1123 | phy_start(p->phy); | |
1124 | } | |
1125 | ||
1126 | return 0; | |
1127 | } | |
1128 | ||
d87d6f44 GR |
1129 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
1130 | int port, char *name) | |
91da11f8 | 1131 | { |
e84665c9 | 1132 | struct net_device *master = ds->dst->master_netdev; |
91da11f8 LB |
1133 | struct net_device *slave_dev; |
1134 | struct dsa_slave_priv *p; | |
1135 | int ret; | |
1136 | ||
c835a677 TG |
1137 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1138 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1139 | if (slave_dev == NULL) |
d87d6f44 | 1140 | return -ENOMEM; |
91da11f8 LB |
1141 | |
1142 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1143 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1144 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1145 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1146 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1147 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
f37db85d | 1148 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1149 | |
448b4482 AL |
1150 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1151 | NULL); | |
1152 | ||
5075314e AD |
1153 | SET_NETDEV_DEV(slave_dev, parent); |
1154 | slave_dev->dev.of_node = ds->pd->port_dn[port]; | |
1155 | slave_dev->vlan_features = master->vlan_features; | |
1156 | ||
1157 | p = netdev_priv(slave_dev); | |
1158 | p->dev = slave_dev; | |
1159 | p->parent = ds; | |
1160 | p->port = port; | |
1161 | ||
e84665c9 | 1162 | switch (ds->dst->tag_protocol) { |
cf85d08f | 1163 | #ifdef CONFIG_NET_DSA_TAG_DSA |
ac7a04c3 | 1164 | case DSA_TAG_PROTO_DSA: |
5075314e | 1165 | p->xmit = dsa_netdev_ops.xmit; |
cf85d08f LB |
1166 | break; |
1167 | #endif | |
91da11f8 | 1168 | #ifdef CONFIG_NET_DSA_TAG_EDSA |
ac7a04c3 | 1169 | case DSA_TAG_PROTO_EDSA: |
5075314e | 1170 | p->xmit = edsa_netdev_ops.xmit; |
91da11f8 | 1171 | break; |
396138f0 LB |
1172 | #endif |
1173 | #ifdef CONFIG_NET_DSA_TAG_TRAILER | |
ac7a04c3 | 1174 | case DSA_TAG_PROTO_TRAILER: |
5075314e | 1175 | p->xmit = trailer_netdev_ops.xmit; |
396138f0 | 1176 | break; |
5037d532 FF |
1177 | #endif |
1178 | #ifdef CONFIG_NET_DSA_TAG_BRCM | |
ac7a04c3 | 1179 | case DSA_TAG_PROTO_BRCM: |
5075314e | 1180 | p->xmit = brcm_netdev_ops.xmit; |
5037d532 | 1181 | break; |
91da11f8 LB |
1182 | #endif |
1183 | default: | |
5075314e | 1184 | p->xmit = dsa_slave_notag_xmit; |
5aed85ce | 1185 | break; |
91da11f8 | 1186 | } |
d442ad4a | 1187 | |
0d8bcdd3 FF |
1188 | p->old_pause = -1; |
1189 | p->old_link = -1; | |
1190 | p->old_duplex = -1; | |
1191 | ||
9697f1cd FF |
1192 | ret = dsa_slave_phy_setup(p, slave_dev); |
1193 | if (ret) { | |
d25b8e74 | 1194 | netdev_err(master, "error %d setting up slave phy\n", ret); |
9697f1cd | 1195 | free_netdev(slave_dev); |
d87d6f44 | 1196 | return ret; |
9697f1cd | 1197 | } |
91da11f8 | 1198 | |
d87d6f44 | 1199 | ds->ports[port] = slave_dev; |
91da11f8 LB |
1200 | ret = register_netdev(slave_dev); |
1201 | if (ret) { | |
a2ae6007 JP |
1202 | netdev_err(master, "error %d registering interface %s\n", |
1203 | ret, slave_dev->name); | |
9697f1cd | 1204 | phy_disconnect(p->phy); |
d87d6f44 | 1205 | ds->ports[port] = NULL; |
91da11f8 | 1206 | free_netdev(slave_dev); |
d87d6f44 | 1207 | return ret; |
91da11f8 LB |
1208 | } |
1209 | ||
1210 | netif_carrier_off(slave_dev); | |
1211 | ||
d87d6f44 | 1212 | return 0; |
91da11f8 | 1213 | } |
b73adef6 FF |
1214 | |
1215 | static bool dsa_slave_dev_check(struct net_device *dev) | |
1216 | { | |
1217 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1218 | } | |
1219 | ||
1220 | static int dsa_slave_master_changed(struct net_device *dev) | |
1221 | { | |
1222 | struct net_device *master = netdev_master_upper_dev_get(dev); | |
b06b107a | 1223 | struct dsa_slave_priv *p = netdev_priv(dev); |
b73adef6 FF |
1224 | int err = 0; |
1225 | ||
1226 | if (master && master->rtnl_link_ops && | |
1227 | !strcmp(master->rtnl_link_ops->kind, "bridge")) | |
1228 | err = dsa_slave_bridge_port_join(dev, master); | |
b06b107a | 1229 | else if (dsa_port_is_bridged(p)) |
b73adef6 FF |
1230 | err = dsa_slave_bridge_port_leave(dev); |
1231 | ||
1232 | return err; | |
1233 | } | |
1234 | ||
1235 | int dsa_slave_netdevice_event(struct notifier_block *unused, | |
1236 | unsigned long event, void *ptr) | |
1237 | { | |
1238 | struct net_device *dev; | |
1239 | int err = 0; | |
1240 | ||
1241 | switch (event) { | |
1242 | case NETDEV_CHANGEUPPER: | |
1243 | dev = netdev_notifier_info_to_dev(ptr); | |
1244 | if (!dsa_slave_dev_check(dev)) | |
1245 | goto out; | |
1246 | ||
1247 | err = dsa_slave_master_changed(dev); | |
efd29b3d | 1248 | if (err && err != -EOPNOTSUPP) |
b73adef6 FF |
1249 | netdev_warn(dev, "failed to reflect master change\n"); |
1250 | ||
1251 | break; | |
1252 | } | |
1253 | ||
1254 | out: | |
1255 | return NOTIFY_DONE; | |
1256 | } |