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Commit | Line | Data |
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91da11f8 LB |
1 | /* |
2 | * net/dsa/slave.c - Slave device handling | |
e84665c9 | 3 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/list.h> | |
df02c6ff | 12 | #include <linux/etherdevice.h> |
b73adef6 | 13 | #include <linux/netdevice.h> |
91da11f8 | 14 | #include <linux/phy.h> |
a2820543 | 15 | #include <linux/phy_fixed.h> |
0d8bcdd3 FF |
16 | #include <linux/of_net.h> |
17 | #include <linux/of_mdio.h> | |
7f854420 | 18 | #include <linux/mdio.h> |
f50f2127 | 19 | #include <linux/list.h> |
b73adef6 | 20 | #include <net/rtnetlink.h> |
f50f2127 FF |
21 | #include <net/pkt_cls.h> |
22 | #include <net/tc_act/tc_mirred.h> | |
b73adef6 | 23 | #include <linux/if_bridge.h> |
04ff53f9 | 24 | #include <linux/netpoll.h> |
ea5dd34b | 25 | |
91da11f8 LB |
26 | #include "dsa_priv.h" |
27 | ||
f50f2127 FF |
28 | static bool dsa_slave_dev_check(struct net_device *dev); |
29 | ||
a93ecdd9 | 30 | static int dsa_port_notify(struct dsa_port *dp, unsigned long e, void *v) |
04d3a4c6 | 31 | { |
a93ecdd9 | 32 | struct raw_notifier_head *nh = &dp->ds->dst->nh; |
04d3a4c6 VD |
33 | int err; |
34 | ||
35 | err = raw_notifier_call_chain(nh, e, v); | |
36 | ||
37 | return notifier_to_errno(err); | |
38 | } | |
39 | ||
91da11f8 LB |
40 | /* slave mii_bus handling ***************************************************/ |
41 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
42 | { | |
43 | struct dsa_switch *ds = bus->priv; | |
44 | ||
0d8bcdd3 | 45 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 46 | return ds->ops->phy_read(ds, addr, reg); |
91da11f8 LB |
47 | |
48 | return 0xffff; | |
49 | } | |
50 | ||
51 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
52 | { | |
53 | struct dsa_switch *ds = bus->priv; | |
54 | ||
0d8bcdd3 | 55 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 56 | return ds->ops->phy_write(ds, addr, reg, val); |
91da11f8 LB |
57 | |
58 | return 0; | |
59 | } | |
60 | ||
61 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
62 | { | |
63 | ds->slave_mii_bus->priv = (void *)ds; | |
64 | ds->slave_mii_bus->name = "dsa slave smi"; | |
65 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
66 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
0b7b498d FF |
67 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
68 | ds->dst->tree, ds->index); | |
c33063d6 | 69 | ds->slave_mii_bus->parent = ds->dev; |
24df8986 | 70 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
71 | } |
72 | ||
73 | ||
74 | /* slave device handling ****************************************************/ | |
abd2be00 | 75 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
76 | { |
77 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 78 | |
afdcf151 | 79 | return p->dp->ds->dst->master_netdev->ifindex; |
c0840801 LB |
80 | } |
81 | ||
a5e9a02e | 82 | static inline bool dsa_port_is_bridged(struct dsa_port *dp) |
b73adef6 | 83 | { |
a5e9a02e | 84 | return !!dp->bridge_dev; |
b73adef6 FF |
85 | } |
86 | ||
fd364541 VD |
87 | static int dsa_port_set_state(struct dsa_port *dp, u8 state, |
88 | struct switchdev_trans *trans) | |
4acfee81 | 89 | { |
c5d35cb3 VD |
90 | struct dsa_switch *ds = dp->ds; |
91 | int port = dp->index; | |
732f794c | 92 | |
fd364541 VD |
93 | if (switchdev_trans_ph_prepare(trans)) |
94 | return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP; | |
95 | ||
4acfee81 VD |
96 | if (ds->ops->port_stp_state_set) |
97 | ds->ops->port_stp_state_set(ds, port, state); | |
732f794c VD |
98 | |
99 | if (ds->ops->port_fast_age) { | |
100 | /* Fast age FDB entries or flush appropriate forwarding database | |
101 | * for the given port, if we are moving it from Learning or | |
102 | * Forwarding state, to Disabled or Blocking or Listening state. | |
103 | */ | |
104 | ||
105 | if ((dp->stp_state == BR_STATE_LEARNING || | |
106 | dp->stp_state == BR_STATE_FORWARDING) && | |
107 | (state == BR_STATE_DISABLED || | |
108 | state == BR_STATE_BLOCKING || | |
109 | state == BR_STATE_LISTENING)) | |
110 | ds->ops->port_fast_age(ds, port); | |
111 | } | |
112 | ||
113 | dp->stp_state = state; | |
fd364541 VD |
114 | |
115 | return 0; | |
116 | } | |
117 | ||
118 | static void dsa_port_set_state_now(struct dsa_port *dp, u8 state) | |
119 | { | |
120 | int err; | |
121 | ||
122 | err = dsa_port_set_state(dp, state, NULL); | |
123 | if (err) | |
124 | pr_err("DSA: failed to set STP state %u (%d)\n", state, err); | |
4acfee81 VD |
125 | } |
126 | ||
91da11f8 LB |
127 | static int dsa_slave_open(struct net_device *dev) |
128 | { | |
df02c6ff | 129 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
130 | struct net_device *master = p->dp->ds->dst->master_netdev; |
131 | struct dsa_switch *ds = p->dp->ds; | |
a5e9a02e | 132 | u8 stp_state = dsa_port_is_bridged(p->dp) ? |
b73adef6 | 133 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; |
df02c6ff LB |
134 | int err; |
135 | ||
136 | if (!(master->flags & IFF_UP)) | |
137 | return -ENETDOWN; | |
138 | ||
8feedbb4 | 139 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 140 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
141 | if (err < 0) |
142 | goto out; | |
143 | } | |
144 | ||
145 | if (dev->flags & IFF_ALLMULTI) { | |
146 | err = dev_set_allmulti(master, 1); | |
147 | if (err < 0) | |
148 | goto del_unicast; | |
149 | } | |
150 | if (dev->flags & IFF_PROMISC) { | |
151 | err = dev_set_promiscuity(master, 1); | |
152 | if (err < 0) | |
153 | goto clear_allmulti; | |
154 | } | |
155 | ||
9d490b4e | 156 | if (ds->ops->port_enable) { |
afdcf151 | 157 | err = ds->ops->port_enable(ds, p->dp->index, p->phy); |
b2f2af21 FF |
158 | if (err) |
159 | goto clear_promisc; | |
160 | } | |
161 | ||
fd364541 | 162 | dsa_port_set_state_now(p->dp, stp_state); |
b73adef6 | 163 | |
f7f1de51 FF |
164 | if (p->phy) |
165 | phy_start(p->phy); | |
166 | ||
91da11f8 | 167 | return 0; |
df02c6ff | 168 | |
b2f2af21 FF |
169 | clear_promisc: |
170 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 171 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
172 | clear_allmulti: |
173 | if (dev->flags & IFF_ALLMULTI) | |
174 | dev_set_allmulti(master, -1); | |
175 | del_unicast: | |
8feedbb4 | 176 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 177 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
178 | out: |
179 | return err; | |
91da11f8 LB |
180 | } |
181 | ||
182 | static int dsa_slave_close(struct net_device *dev) | |
183 | { | |
df02c6ff | 184 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
185 | struct net_device *master = p->dp->ds->dst->master_netdev; |
186 | struct dsa_switch *ds = p->dp->ds; | |
df02c6ff | 187 | |
f7f1de51 FF |
188 | if (p->phy) |
189 | phy_stop(p->phy); | |
190 | ||
df02c6ff | 191 | dev_mc_unsync(master, dev); |
a748ee24 | 192 | dev_uc_unsync(master, dev); |
df02c6ff LB |
193 | if (dev->flags & IFF_ALLMULTI) |
194 | dev_set_allmulti(master, -1); | |
195 | if (dev->flags & IFF_PROMISC) | |
196 | dev_set_promiscuity(master, -1); | |
197 | ||
8feedbb4 | 198 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 199 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 200 | |
9d490b4e | 201 | if (ds->ops->port_disable) |
afdcf151 | 202 | ds->ops->port_disable(ds, p->dp->index, p->phy); |
b2f2af21 | 203 | |
fd364541 | 204 | dsa_port_set_state_now(p->dp, BR_STATE_DISABLED); |
b73adef6 | 205 | |
91da11f8 LB |
206 | return 0; |
207 | } | |
208 | ||
209 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
210 | { | |
211 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 212 | struct net_device *master = p->dp->ds->dst->master_netdev; |
91da11f8 LB |
213 | |
214 | if (change & IFF_ALLMULTI) | |
215 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
216 | if (change & IFF_PROMISC) | |
217 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
218 | } | |
219 | ||
220 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
221 | { | |
222 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 223 | struct net_device *master = p->dp->ds->dst->master_netdev; |
91da11f8 LB |
224 | |
225 | dev_mc_sync(master, dev); | |
a748ee24 | 226 | dev_uc_sync(master, dev); |
91da11f8 LB |
227 | } |
228 | ||
df02c6ff | 229 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 230 | { |
df02c6ff | 231 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 232 | struct net_device *master = p->dp->ds->dst->master_netdev; |
df02c6ff LB |
233 | struct sockaddr *addr = a; |
234 | int err; | |
235 | ||
236 | if (!is_valid_ether_addr(addr->sa_data)) | |
237 | return -EADDRNOTAVAIL; | |
238 | ||
239 | if (!(dev->flags & IFF_UP)) | |
240 | goto out; | |
241 | ||
8feedbb4 | 242 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 243 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
244 | if (err < 0) |
245 | return err; | |
246 | } | |
247 | ||
8feedbb4 | 248 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 249 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
250 | |
251 | out: | |
d08f161a | 252 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
253 | |
254 | return 0; | |
255 | } | |
256 | ||
01676d12 VD |
257 | static int dsa_port_vlan_add(struct dsa_port *dp, |
258 | const struct switchdev_obj_port_vlan *vlan, | |
259 | struct switchdev_trans *trans) | |
11149536 | 260 | { |
afdcf151 | 261 | struct dsa_switch *ds = dp->ds; |
11149536 | 262 | |
79a62eb2 | 263 | if (switchdev_trans_ph_prepare(trans)) { |
9d490b4e | 264 | if (!ds->ops->port_vlan_prepare || !ds->ops->port_vlan_add) |
11149536 VD |
265 | return -EOPNOTSUPP; |
266 | ||
afdcf151 | 267 | return ds->ops->port_vlan_prepare(ds, dp->index, vlan, trans); |
11149536 VD |
268 | } |
269 | ||
afdcf151 | 270 | ds->ops->port_vlan_add(ds, dp->index, vlan, trans); |
4d5770b3 | 271 | |
11149536 VD |
272 | return 0; |
273 | } | |
274 | ||
01676d12 VD |
275 | static int dsa_port_vlan_del(struct dsa_port *dp, |
276 | const struct switchdev_obj_port_vlan *vlan) | |
11149536 | 277 | { |
01676d12 | 278 | struct dsa_switch *ds = dp->ds; |
11149536 | 279 | |
9d490b4e | 280 | if (!ds->ops->port_vlan_del) |
11149536 VD |
281 | return -EOPNOTSUPP; |
282 | ||
01676d12 | 283 | return ds->ops->port_vlan_del(ds, dp->index, vlan); |
11149536 VD |
284 | } |
285 | ||
01676d12 VD |
286 | static int dsa_port_vlan_dump(struct dsa_port *dp, |
287 | struct switchdev_obj_port_vlan *vlan, | |
288 | switchdev_obj_dump_cb_t *cb) | |
11149536 | 289 | { |
01676d12 | 290 | struct dsa_switch *ds = dp->ds; |
11149536 | 291 | |
9d490b4e | 292 | if (ds->ops->port_vlan_dump) |
01676d12 | 293 | return ds->ops->port_vlan_dump(ds, dp->index, vlan, cb); |
65aebfc0 | 294 | |
477b1845 | 295 | return -EOPNOTSUPP; |
11149536 VD |
296 | } |
297 | ||
3fdb023b VD |
298 | static int dsa_port_fdb_add(struct dsa_port *dp, |
299 | const struct switchdev_obj_port_fdb *fdb, | |
300 | struct switchdev_trans *trans) | |
cdf09697 | 301 | { |
3fdb023b | 302 | struct dsa_switch *ds = dp->ds; |
146a3206 | 303 | |
8497aa61 | 304 | if (switchdev_trans_ph_prepare(trans)) { |
9d490b4e | 305 | if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add) |
8497aa61 | 306 | return -EOPNOTSUPP; |
cdf09697 | 307 | |
3fdb023b | 308 | return ds->ops->port_fdb_prepare(ds, dp->index, fdb, trans); |
8497aa61 VD |
309 | } |
310 | ||
3fdb023b | 311 | ds->ops->port_fdb_add(ds, dp->index, fdb, trans); |
cdf09697 | 312 | |
8497aa61 | 313 | return 0; |
cdf09697 DM |
314 | } |
315 | ||
3fdb023b VD |
316 | static int dsa_port_fdb_del(struct dsa_port *dp, |
317 | const struct switchdev_obj_port_fdb *fdb) | |
cdf09697 | 318 | { |
3fdb023b | 319 | struct dsa_switch *ds = dp->ds; |
cdf09697 DM |
320 | int ret = -EOPNOTSUPP; |
321 | ||
9d490b4e | 322 | if (ds->ops->port_fdb_del) |
3fdb023b | 323 | ret = ds->ops->port_fdb_del(ds, dp->index, fdb); |
cdf09697 DM |
324 | |
325 | return ret; | |
326 | } | |
327 | ||
3fdb023b VD |
328 | static int dsa_port_fdb_dump(struct dsa_port *dp, |
329 | struct switchdev_obj_port_fdb *fdb, | |
330 | switchdev_obj_dump_cb_t *cb) | |
cdf09697 | 331 | { |
3fdb023b | 332 | struct dsa_switch *ds = dp->ds; |
cdf09697 | 333 | |
9d490b4e | 334 | if (ds->ops->port_fdb_dump) |
3fdb023b | 335 | return ds->ops->port_fdb_dump(ds, dp->index, fdb, cb); |
ea70ba98 | 336 | |
1a49a2fb | 337 | return -EOPNOTSUPP; |
cdf09697 DM |
338 | } |
339 | ||
bcebb976 VD |
340 | static int dsa_port_mdb_add(struct dsa_port *dp, |
341 | const struct switchdev_obj_port_mdb *mdb, | |
342 | struct switchdev_trans *trans) | |
8df30255 | 343 | { |
bcebb976 | 344 | struct dsa_switch *ds = dp->ds; |
8df30255 VD |
345 | |
346 | if (switchdev_trans_ph_prepare(trans)) { | |
347 | if (!ds->ops->port_mdb_prepare || !ds->ops->port_mdb_add) | |
348 | return -EOPNOTSUPP; | |
349 | ||
bcebb976 | 350 | return ds->ops->port_mdb_prepare(ds, dp->index, mdb, trans); |
8df30255 VD |
351 | } |
352 | ||
bcebb976 | 353 | ds->ops->port_mdb_add(ds, dp->index, mdb, trans); |
8df30255 VD |
354 | |
355 | return 0; | |
356 | } | |
357 | ||
bcebb976 VD |
358 | static int dsa_port_mdb_del(struct dsa_port *dp, |
359 | const struct switchdev_obj_port_mdb *mdb) | |
8df30255 | 360 | { |
bcebb976 | 361 | struct dsa_switch *ds = dp->ds; |
8df30255 VD |
362 | |
363 | if (ds->ops->port_mdb_del) | |
bcebb976 | 364 | return ds->ops->port_mdb_del(ds, dp->index, mdb); |
8df30255 VD |
365 | |
366 | return -EOPNOTSUPP; | |
367 | } | |
368 | ||
bcebb976 VD |
369 | static int dsa_port_mdb_dump(struct dsa_port *dp, |
370 | struct switchdev_obj_port_mdb *mdb, | |
371 | switchdev_obj_dump_cb_t *cb) | |
8df30255 | 372 | { |
bcebb976 | 373 | struct dsa_switch *ds = dp->ds; |
8df30255 VD |
374 | |
375 | if (ds->ops->port_mdb_dump) | |
bcebb976 | 376 | return ds->ops->port_mdb_dump(ds, dp->index, mdb, cb); |
8df30255 VD |
377 | |
378 | return -EOPNOTSUPP; | |
379 | } | |
380 | ||
91da11f8 LB |
381 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
382 | { | |
383 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
384 | |
385 | if (p->phy != NULL) | |
28b04113 | 386 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
387 | |
388 | return -EOPNOTSUPP; | |
389 | } | |
390 | ||
c02c4175 VD |
391 | static int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering, |
392 | struct switchdev_trans *trans) | |
fb2dabad | 393 | { |
c02c4175 | 394 | struct dsa_switch *ds = dp->ds; |
fb2dabad VD |
395 | |
396 | /* bridge skips -EOPNOTSUPP, so skip the prepare phase */ | |
397 | if (switchdev_trans_ph_prepare(trans)) | |
398 | return 0; | |
399 | ||
9d490b4e | 400 | if (ds->ops->port_vlan_filtering) |
c02c4175 VD |
401 | return ds->ops->port_vlan_filtering(ds, dp->index, |
402 | vlan_filtering); | |
fb2dabad VD |
403 | |
404 | return 0; | |
405 | } | |
406 | ||
e893de1b VD |
407 | static unsigned int dsa_fastest_ageing_time(struct dsa_switch *ds, |
408 | unsigned int ageing_time) | |
34a79f63 VD |
409 | { |
410 | int i; | |
411 | ||
26895e29 | 412 | for (i = 0; i < ds->num_ports; ++i) { |
34a79f63 VD |
413 | struct dsa_port *dp = &ds->ports[i]; |
414 | ||
072bb190 | 415 | if (dp->ageing_time && dp->ageing_time < ageing_time) |
34a79f63 VD |
416 | ageing_time = dp->ageing_time; |
417 | } | |
418 | ||
419 | return ageing_time; | |
420 | } | |
421 | ||
072bb190 VD |
422 | static int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock, |
423 | struct switchdev_trans *trans) | |
34a79f63 | 424 | { |
072bb190 | 425 | unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock); |
34a79f63 | 426 | unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies); |
072bb190 | 427 | struct dsa_switch *ds = dp->ds; |
34a79f63 | 428 | |
0f3da6af VD |
429 | if (switchdev_trans_ph_prepare(trans)) { |
430 | if (ds->ageing_time_min && ageing_time < ds->ageing_time_min) | |
431 | return -ERANGE; | |
432 | if (ds->ageing_time_max && ageing_time > ds->ageing_time_max) | |
433 | return -ERANGE; | |
34a79f63 | 434 | return 0; |
0f3da6af | 435 | } |
34a79f63 VD |
436 | |
437 | /* Keep the fastest ageing time in case of multiple bridges */ | |
072bb190 | 438 | dp->ageing_time = ageing_time; |
34a79f63 VD |
439 | ageing_time = dsa_fastest_ageing_time(ds, ageing_time); |
440 | ||
9d490b4e VD |
441 | if (ds->ops->set_ageing_time) |
442 | return ds->ops->set_ageing_time(ds, ageing_time); | |
34a79f63 VD |
443 | |
444 | return 0; | |
445 | } | |
446 | ||
35636062 | 447 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 448 | const struct switchdev_attr *attr, |
7ea6eb3f | 449 | struct switchdev_trans *trans) |
35636062 | 450 | { |
fd364541 VD |
451 | struct dsa_slave_priv *p = netdev_priv(dev); |
452 | struct dsa_port *dp = p->dp; | |
b8d866ac | 453 | int ret; |
35636062 SF |
454 | |
455 | switch (attr->id) { | |
1f868398 | 456 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 457 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 458 | break; |
fb2dabad | 459 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
460 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
461 | trans); | |
fb2dabad | 462 | break; |
34a79f63 | 463 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 464 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 465 | break; |
35636062 SF |
466 | default: |
467 | ret = -EOPNOTSUPP; | |
468 | break; | |
469 | } | |
470 | ||
471 | return ret; | |
472 | } | |
473 | ||
ba14d9eb | 474 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 475 | const struct switchdev_obj *obj, |
7ea6eb3f | 476 | struct switchdev_trans *trans) |
ba14d9eb | 477 | { |
3fdb023b VD |
478 | struct dsa_slave_priv *p = netdev_priv(dev); |
479 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
480 | int err; |
481 | ||
482 | /* For the prepare phase, ensure the full set of changes is feasable in | |
483 | * one go in order to signal a failure properly. If an operation is not | |
484 | * supported, return -EOPNOTSUPP. | |
485 | */ | |
486 | ||
9e8f4a54 | 487 | switch (obj->id) { |
57d80838 | 488 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
3fdb023b | 489 | err = dsa_port_fdb_add(dp, SWITCHDEV_OBJ_PORT_FDB(obj), trans); |
ba14d9eb | 490 | break; |
8df30255 | 491 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 492 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 493 | break; |
57d80838 | 494 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
495 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
496 | trans); | |
11149536 | 497 | break; |
ba14d9eb VD |
498 | default: |
499 | err = -EOPNOTSUPP; | |
500 | break; | |
501 | } | |
502 | ||
503 | return err; | |
504 | } | |
505 | ||
506 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 507 | const struct switchdev_obj *obj) |
ba14d9eb | 508 | { |
3fdb023b VD |
509 | struct dsa_slave_priv *p = netdev_priv(dev); |
510 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
511 | int err; |
512 | ||
9e8f4a54 | 513 | switch (obj->id) { |
57d80838 | 514 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
3fdb023b | 515 | err = dsa_port_fdb_del(dp, SWITCHDEV_OBJ_PORT_FDB(obj)); |
ba14d9eb | 516 | break; |
8df30255 | 517 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 518 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 519 | break; |
57d80838 | 520 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 521 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 522 | break; |
ba14d9eb VD |
523 | default: |
524 | err = -EOPNOTSUPP; | |
525 | break; | |
526 | } | |
527 | ||
528 | return err; | |
529 | } | |
530 | ||
531 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
532 | struct switchdev_obj *obj, |
533 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb | 534 | { |
3fdb023b VD |
535 | struct dsa_slave_priv *p = netdev_priv(dev); |
536 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
537 | int err; |
538 | ||
9e8f4a54 | 539 | switch (obj->id) { |
57d80838 | 540 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
3fdb023b | 541 | err = dsa_port_fdb_dump(dp, SWITCHDEV_OBJ_PORT_FDB(obj), cb); |
ba14d9eb | 542 | break; |
8df30255 | 543 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 544 | err = dsa_port_mdb_dump(dp, SWITCHDEV_OBJ_PORT_MDB(obj), cb); |
8df30255 | 545 | break; |
57d80838 | 546 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 547 | err = dsa_port_vlan_dump(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), cb); |
11149536 | 548 | break; |
ba14d9eb VD |
549 | default: |
550 | err = -EOPNOTSUPP; | |
551 | break; | |
552 | } | |
553 | ||
554 | return err; | |
555 | } | |
556 | ||
17d7802b | 557 | static int dsa_port_bridge_join(struct dsa_port *dp, struct net_device *br) |
b73adef6 | 558 | { |
04d3a4c6 | 559 | struct dsa_notifier_bridge_info info = { |
17d7802b VD |
560 | .sw_index = dp->ds->index, |
561 | .port = dp->index, | |
04d3a4c6 VD |
562 | .br = br, |
563 | }; | |
564 | int err; | |
b73adef6 | 565 | |
9c265426 VD |
566 | /* Here the port is already bridged. Reflect the current configuration |
567 | * so that drivers can program their chips accordingly. | |
568 | */ | |
17d7802b | 569 | dp->bridge_dev = br; |
b73adef6 | 570 | |
17d7802b | 571 | err = dsa_port_notify(dp, DSA_NOTIFIER_BRIDGE_JOIN, &info); |
b73adef6 | 572 | |
9c265426 | 573 | /* The bridging is rolled back on error */ |
04d3a4c6 | 574 | if (err) |
17d7802b | 575 | dp->bridge_dev = NULL; |
9c265426 | 576 | |
04d3a4c6 | 577 | return err; |
b73adef6 FF |
578 | } |
579 | ||
17d7802b | 580 | static void dsa_port_bridge_leave(struct dsa_port *dp, struct net_device *br) |
b73adef6 | 581 | { |
04d3a4c6 | 582 | struct dsa_notifier_bridge_info info = { |
17d7802b VD |
583 | .sw_index = dp->ds->index, |
584 | .port = dp->index, | |
04d3a4c6 VD |
585 | .br = br, |
586 | }; | |
587 | int err; | |
b73adef6 | 588 | |
9c265426 VD |
589 | /* Here the port is already unbridged. Reflect the current configuration |
590 | * so that drivers can program their chips accordingly. | |
591 | */ | |
17d7802b | 592 | dp->bridge_dev = NULL; |
b73adef6 | 593 | |
17d7802b | 594 | err = dsa_port_notify(dp, DSA_NOTIFIER_BRIDGE_LEAVE, &info); |
04d3a4c6 | 595 | if (err) |
17d7802b | 596 | pr_err("DSA: failed to notify DSA_NOTIFIER_BRIDGE_LEAVE\n"); |
b73adef6 FF |
597 | |
598 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
599 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
600 | */ | |
17d7802b | 601 | dsa_port_set_state_now(dp, BR_STATE_FORWARDING); |
b73adef6 FF |
602 | } |
603 | ||
f8e20a9f SF |
604 | static int dsa_slave_port_attr_get(struct net_device *dev, |
605 | struct switchdev_attr *attr) | |
b73adef6 FF |
606 | { |
607 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 608 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 609 | |
f8e20a9f | 610 | switch (attr->id) { |
1f868398 | 611 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
612 | attr->u.ppid.id_len = sizeof(ds->index); |
613 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
614 | break; |
615 | default: | |
616 | return -EOPNOTSUPP; | |
617 | } | |
b73adef6 FF |
618 | |
619 | return 0; | |
620 | } | |
621 | ||
04ff53f9 FF |
622 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
623 | struct sk_buff *skb) | |
624 | { | |
625 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
626 | if (p->netpoll) | |
627 | netpoll_send_skb(p->netpoll, skb); | |
628 | #else | |
629 | BUG(); | |
630 | #endif | |
631 | return NETDEV_TX_OK; | |
632 | } | |
633 | ||
3e8a72d1 FF |
634 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
635 | { | |
636 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 637 | struct sk_buff *nskb; |
3e8a72d1 | 638 | |
4ed70ce9 FF |
639 | dev->stats.tx_packets++; |
640 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 641 | |
4ed70ce9 FF |
642 | /* Transmit function may have to reallocate the original SKB */ |
643 | nskb = p->xmit(skb, dev); | |
644 | if (!nskb) | |
645 | return NETDEV_TX_OK; | |
5aed85ce | 646 | |
04ff53f9 FF |
647 | /* SKB for netpoll still need to be mangled with the protocol-specific |
648 | * tag to be successfully transmitted | |
649 | */ | |
650 | if (unlikely(netpoll_tx_running(dev))) | |
651 | return dsa_netpoll_send_skb(p, nskb); | |
652 | ||
4ed70ce9 FF |
653 | /* Queue the SKB for transmission on the parent interface, but |
654 | * do not modify its EtherType | |
655 | */ | |
afdcf151 | 656 | nskb->dev = p->dp->ds->dst->master_netdev; |
4ed70ce9 | 657 | dev_queue_xmit(nskb); |
5aed85ce FF |
658 | |
659 | return NETDEV_TX_OK; | |
660 | } | |
661 | ||
91da11f8 LB |
662 | /* ethtool operations *******************************************************/ |
663 | static int | |
bb10bb3e PR |
664 | dsa_slave_get_link_ksettings(struct net_device *dev, |
665 | struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
666 | { |
667 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e69e4626 | 668 | int err = -EOPNOTSUPP; |
91da11f8 | 669 | |
e69e4626 FF |
670 | if (p->phy != NULL) |
671 | err = phy_ethtool_ksettings_get(p->phy, cmd); | |
91da11f8 LB |
672 | |
673 | return err; | |
674 | } | |
675 | ||
676 | static int | |
bb10bb3e PR |
677 | dsa_slave_set_link_ksettings(struct net_device *dev, |
678 | const struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
679 | { |
680 | struct dsa_slave_priv *p = netdev_priv(dev); | |
681 | ||
682 | if (p->phy != NULL) | |
bb10bb3e | 683 | return phy_ethtool_ksettings_set(p->phy, cmd); |
91da11f8 LB |
684 | |
685 | return -EOPNOTSUPP; | |
686 | } | |
687 | ||
688 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
689 | struct ethtool_drvinfo *drvinfo) | |
690 | { | |
7826d43f | 691 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
692 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
693 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
694 | } |
695 | ||
3d762a0f GR |
696 | static int dsa_slave_get_regs_len(struct net_device *dev) |
697 | { | |
698 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 699 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 700 | |
9d490b4e | 701 | if (ds->ops->get_regs_len) |
afdcf151 | 702 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
703 | |
704 | return -EOPNOTSUPP; | |
705 | } | |
706 | ||
707 | static void | |
708 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
709 | { | |
710 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 711 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 712 | |
9d490b4e | 713 | if (ds->ops->get_regs) |
afdcf151 | 714 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
715 | } |
716 | ||
91da11f8 LB |
717 | static int dsa_slave_nway_reset(struct net_device *dev) |
718 | { | |
719 | struct dsa_slave_priv *p = netdev_priv(dev); | |
720 | ||
721 | if (p->phy != NULL) | |
722 | return genphy_restart_aneg(p->phy); | |
723 | ||
724 | return -EOPNOTSUPP; | |
725 | } | |
726 | ||
727 | static u32 dsa_slave_get_link(struct net_device *dev) | |
728 | { | |
729 | struct dsa_slave_priv *p = netdev_priv(dev); | |
730 | ||
731 | if (p->phy != NULL) { | |
732 | genphy_update_link(p->phy); | |
733 | return p->phy->link; | |
734 | } | |
735 | ||
736 | return -EOPNOTSUPP; | |
737 | } | |
738 | ||
6793abb4 GR |
739 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
740 | { | |
741 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 742 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 743 | |
0e576044 | 744 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 745 | return ds->cd->eeprom_len; |
6793abb4 | 746 | |
9d490b4e VD |
747 | if (ds->ops->get_eeprom_len) |
748 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
749 | |
750 | return 0; | |
751 | } | |
752 | ||
753 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
754 | struct ethtool_eeprom *eeprom, u8 *data) | |
755 | { | |
756 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 757 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 758 | |
9d490b4e VD |
759 | if (ds->ops->get_eeprom) |
760 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
761 | |
762 | return -EOPNOTSUPP; | |
763 | } | |
764 | ||
765 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
766 | struct ethtool_eeprom *eeprom, u8 *data) | |
767 | { | |
768 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 769 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 770 | |
9d490b4e VD |
771 | if (ds->ops->set_eeprom) |
772 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
773 | |
774 | return -EOPNOTSUPP; | |
775 | } | |
776 | ||
91da11f8 LB |
777 | static void dsa_slave_get_strings(struct net_device *dev, |
778 | uint32_t stringset, uint8_t *data) | |
779 | { | |
780 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 781 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
782 | |
783 | if (stringset == ETH_SS_STATS) { | |
784 | int len = ETH_GSTRING_LEN; | |
785 | ||
786 | strncpy(data, "tx_packets", len); | |
787 | strncpy(data + len, "tx_bytes", len); | |
788 | strncpy(data + 2 * len, "rx_packets", len); | |
789 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 790 | if (ds->ops->get_strings) |
afdcf151 | 791 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
792 | } |
793 | } | |
794 | ||
badf3ada FF |
795 | static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev, |
796 | struct ethtool_stats *stats, | |
797 | uint64_t *data) | |
798 | { | |
799 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
8b0d3ea5 VD |
800 | struct dsa_switch *ds = dst->cpu_dp->ds; |
801 | s8 cpu_port = dst->cpu_dp->index; | |
badf3ada FF |
802 | int count = 0; |
803 | ||
804 | if (dst->master_ethtool_ops.get_sset_count) { | |
805 | count = dst->master_ethtool_ops.get_sset_count(dev, | |
806 | ETH_SS_STATS); | |
807 | dst->master_ethtool_ops.get_ethtool_stats(dev, stats, data); | |
808 | } | |
809 | ||
9d490b4e VD |
810 | if (ds->ops->get_ethtool_stats) |
811 | ds->ops->get_ethtool_stats(ds, cpu_port, data + count); | |
badf3ada FF |
812 | } |
813 | ||
814 | static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset) | |
815 | { | |
816 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
8b0d3ea5 | 817 | struct dsa_switch *ds = dst->cpu_dp->ds; |
badf3ada FF |
818 | int count = 0; |
819 | ||
820 | if (dst->master_ethtool_ops.get_sset_count) | |
821 | count += dst->master_ethtool_ops.get_sset_count(dev, sset); | |
822 | ||
9d490b4e VD |
823 | if (sset == ETH_SS_STATS && ds->ops->get_sset_count) |
824 | count += ds->ops->get_sset_count(ds); | |
badf3ada FF |
825 | |
826 | return count; | |
827 | } | |
828 | ||
829 | static void dsa_cpu_port_get_strings(struct net_device *dev, | |
830 | uint32_t stringset, uint8_t *data) | |
831 | { | |
832 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
8b0d3ea5 VD |
833 | struct dsa_switch *ds = dst->cpu_dp->ds; |
834 | s8 cpu_port = dst->cpu_dp->index; | |
badf3ada FF |
835 | int len = ETH_GSTRING_LEN; |
836 | int mcount = 0, count; | |
837 | unsigned int i; | |
838 | uint8_t pfx[4]; | |
839 | uint8_t *ndata; | |
840 | ||
841 | snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port); | |
842 | /* We do not want to be NULL-terminated, since this is a prefix */ | |
843 | pfx[sizeof(pfx) - 1] = '_'; | |
844 | ||
845 | if (dst->master_ethtool_ops.get_sset_count) { | |
846 | mcount = dst->master_ethtool_ops.get_sset_count(dev, | |
847 | ETH_SS_STATS); | |
848 | dst->master_ethtool_ops.get_strings(dev, stringset, data); | |
849 | } | |
850 | ||
9d490b4e | 851 | if (stringset == ETH_SS_STATS && ds->ops->get_strings) { |
badf3ada FF |
852 | ndata = data + mcount * len; |
853 | /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle | |
854 | * the output after to prepend our CPU port prefix we | |
855 | * constructed earlier | |
856 | */ | |
9d490b4e VD |
857 | ds->ops->get_strings(ds, cpu_port, ndata); |
858 | count = ds->ops->get_sset_count(ds); | |
badf3ada FF |
859 | for (i = 0; i < count; i++) { |
860 | memmove(ndata + (i * len + sizeof(pfx)), | |
861 | ndata + i * len, len - sizeof(pfx)); | |
862 | memcpy(ndata + i * len, pfx, sizeof(pfx)); | |
863 | } | |
864 | } | |
865 | } | |
866 | ||
91da11f8 LB |
867 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, |
868 | struct ethtool_stats *stats, | |
869 | uint64_t *data) | |
870 | { | |
871 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 872 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 | 873 | |
46e7b8d8 VD |
874 | data[0] = dev->stats.tx_packets; |
875 | data[1] = dev->stats.tx_bytes; | |
876 | data[2] = dev->stats.rx_packets; | |
877 | data[3] = dev->stats.rx_bytes; | |
9d490b4e | 878 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 879 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
880 | } |
881 | ||
882 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
883 | { | |
884 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 885 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
886 | |
887 | if (sset == ETH_SS_STATS) { | |
888 | int count; | |
889 | ||
890 | count = 4; | |
9d490b4e VD |
891 | if (ds->ops->get_sset_count) |
892 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
893 | |
894 | return count; | |
895 | } | |
896 | ||
897 | return -EOPNOTSUPP; | |
898 | } | |
899 | ||
19e57c4e FF |
900 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
901 | { | |
902 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 903 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 904 | |
9d490b4e | 905 | if (ds->ops->get_wol) |
afdcf151 | 906 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
907 | } |
908 | ||
909 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
910 | { | |
911 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 912 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
913 | int ret = -EOPNOTSUPP; |
914 | ||
9d490b4e | 915 | if (ds->ops->set_wol) |
afdcf151 | 916 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
917 | |
918 | return ret; | |
919 | } | |
920 | ||
7905288f FF |
921 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
922 | { | |
923 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 924 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
925 | int ret; |
926 | ||
9d490b4e | 927 | if (!ds->ops->set_eee) |
7905288f FF |
928 | return -EOPNOTSUPP; |
929 | ||
afdcf151 | 930 | ret = ds->ops->set_eee(ds, p->dp->index, p->phy, e); |
7905288f FF |
931 | if (ret) |
932 | return ret; | |
933 | ||
934 | if (p->phy) | |
935 | ret = phy_ethtool_set_eee(p->phy, e); | |
936 | ||
937 | return ret; | |
938 | } | |
939 | ||
940 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
941 | { | |
942 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 943 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
944 | int ret; |
945 | ||
9d490b4e | 946 | if (!ds->ops->get_eee) |
7905288f FF |
947 | return -EOPNOTSUPP; |
948 | ||
afdcf151 | 949 | ret = ds->ops->get_eee(ds, p->dp->index, e); |
7905288f FF |
950 | if (ret) |
951 | return ret; | |
952 | ||
953 | if (p->phy) | |
954 | ret = phy_ethtool_get_eee(p->phy, e); | |
955 | ||
956 | return ret; | |
957 | } | |
958 | ||
04ff53f9 FF |
959 | #ifdef CONFIG_NET_POLL_CONTROLLER |
960 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
961 | struct netpoll_info *ni) | |
962 | { | |
963 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 964 | struct dsa_switch *ds = p->dp->ds; |
04ff53f9 FF |
965 | struct net_device *master = ds->dst->master_netdev; |
966 | struct netpoll *netpoll; | |
967 | int err = 0; | |
968 | ||
969 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
970 | if (!netpoll) | |
971 | return -ENOMEM; | |
972 | ||
973 | err = __netpoll_setup(netpoll, master); | |
974 | if (err) { | |
975 | kfree(netpoll); | |
976 | goto out; | |
977 | } | |
978 | ||
979 | p->netpoll = netpoll; | |
980 | out: | |
981 | return err; | |
982 | } | |
983 | ||
984 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
985 | { | |
986 | struct dsa_slave_priv *p = netdev_priv(dev); | |
987 | struct netpoll *netpoll = p->netpoll; | |
988 | ||
989 | if (!netpoll) | |
990 | return; | |
991 | ||
992 | p->netpoll = NULL; | |
993 | ||
994 | __netpoll_free_async(netpoll); | |
995 | } | |
996 | ||
997 | static void dsa_slave_poll_controller(struct net_device *dev) | |
998 | { | |
999 | } | |
1000 | #endif | |
1001 | ||
44bb765c FF |
1002 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
1003 | char *name, size_t len) | |
1004 | { | |
1005 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1006 | ||
afdcf151 | 1007 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 1008 | return -EINVAL; |
3a543ef4 FF |
1009 | |
1010 | return 0; | |
1011 | } | |
1012 | ||
f50f2127 FF |
1013 | static struct dsa_mall_tc_entry * |
1014 | dsa_slave_mall_tc_entry_find(struct dsa_slave_priv *p, | |
1015 | unsigned long cookie) | |
1016 | { | |
1017 | struct dsa_mall_tc_entry *mall_tc_entry; | |
1018 | ||
1019 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
1020 | if (mall_tc_entry->cookie == cookie) | |
1021 | return mall_tc_entry; | |
1022 | ||
1023 | return NULL; | |
1024 | } | |
1025 | ||
1026 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
1027 | __be16 protocol, | |
1028 | struct tc_cls_matchall_offload *cls, | |
1029 | bool ingress) | |
1030 | { | |
1031 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1032 | struct dsa_mall_tc_entry *mall_tc_entry; | |
1033 | struct dsa_switch *ds = p->dp->ds; | |
1034 | struct net *net = dev_net(dev); | |
1035 | struct dsa_slave_priv *to_p; | |
1036 | struct net_device *to_dev; | |
1037 | const struct tc_action *a; | |
1038 | int err = -EOPNOTSUPP; | |
1039 | LIST_HEAD(actions); | |
1040 | int ifindex; | |
1041 | ||
1042 | if (!ds->ops->port_mirror_add) | |
1043 | return err; | |
1044 | ||
1045 | if (!tc_single_action(cls->exts)) | |
1046 | return err; | |
1047 | ||
1048 | tcf_exts_to_list(cls->exts, &actions); | |
1049 | a = list_first_entry(&actions, struct tc_action, list); | |
1050 | ||
1051 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
1052 | struct dsa_mall_mirror_tc_entry *mirror; | |
1053 | ||
1054 | ifindex = tcf_mirred_ifindex(a); | |
1055 | to_dev = __dev_get_by_index(net, ifindex); | |
1056 | if (!to_dev) | |
1057 | return -EINVAL; | |
1058 | ||
1059 | if (!dsa_slave_dev_check(to_dev)) | |
1060 | return -EOPNOTSUPP; | |
1061 | ||
1062 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
1063 | if (!mall_tc_entry) | |
1064 | return -ENOMEM; | |
1065 | ||
1066 | mall_tc_entry->cookie = cls->cookie; | |
1067 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
1068 | mirror = &mall_tc_entry->mirror; | |
1069 | ||
1070 | to_p = netdev_priv(to_dev); | |
1071 | ||
1072 | mirror->to_local_port = to_p->dp->index; | |
1073 | mirror->ingress = ingress; | |
1074 | ||
1075 | err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, | |
1076 | ingress); | |
1077 | if (err) { | |
1078 | kfree(mall_tc_entry); | |
1079 | return err; | |
1080 | } | |
1081 | ||
1082 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
1083 | } | |
1084 | ||
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
1089 | struct tc_cls_matchall_offload *cls) | |
1090 | { | |
1091 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1092 | struct dsa_mall_tc_entry *mall_tc_entry; | |
1093 | struct dsa_switch *ds = p->dp->ds; | |
1094 | ||
1095 | if (!ds->ops->port_mirror_del) | |
1096 | return; | |
1097 | ||
1098 | mall_tc_entry = dsa_slave_mall_tc_entry_find(p, cls->cookie); | |
1099 | if (!mall_tc_entry) | |
1100 | return; | |
1101 | ||
1102 | list_del(&mall_tc_entry->list); | |
1103 | ||
1104 | switch (mall_tc_entry->type) { | |
1105 | case DSA_PORT_MALL_MIRROR: | |
1106 | ds->ops->port_mirror_del(ds, p->dp->index, | |
1107 | &mall_tc_entry->mirror); | |
1108 | break; | |
1109 | default: | |
1110 | WARN_ON(1); | |
1111 | } | |
1112 | ||
1113 | kfree(mall_tc_entry); | |
1114 | } | |
1115 | ||
1116 | static int dsa_slave_setup_tc(struct net_device *dev, u32 handle, | |
1117 | __be16 protocol, struct tc_to_netdev *tc) | |
1118 | { | |
1119 | bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS); | |
1120 | int ret = -EOPNOTSUPP; | |
1121 | ||
1122 | switch (tc->type) { | |
1123 | case TC_SETUP_MATCHALL: | |
1124 | switch (tc->cls_mall->command) { | |
1125 | case TC_CLSMATCHALL_REPLACE: | |
1126 | return dsa_slave_add_cls_matchall(dev, protocol, | |
1127 | tc->cls_mall, | |
1128 | ingress); | |
1129 | case TC_CLSMATCHALL_DESTROY: | |
1130 | dsa_slave_del_cls_matchall(dev, tc->cls_mall); | |
1131 | return 0; | |
1132 | } | |
1133 | default: | |
1134 | break; | |
1135 | } | |
1136 | ||
1137 | return ret; | |
1138 | } | |
1139 | ||
af42192c FF |
1140 | void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops) |
1141 | { | |
1142 | ops->get_sset_count = dsa_cpu_port_get_sset_count; | |
1143 | ops->get_ethtool_stats = dsa_cpu_port_get_ethtool_stats; | |
1144 | ops->get_strings = dsa_cpu_port_get_strings; | |
1145 | } | |
1146 | ||
bf9f2648 FF |
1147 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
1148 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
1149 | { | |
1150 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1151 | struct dsa_switch *ds = p->dp->ds; | |
1152 | ||
1153 | if (!ds->ops->get_rxnfc) | |
1154 | return -EOPNOTSUPP; | |
1155 | ||
1156 | return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); | |
1157 | } | |
1158 | ||
1159 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
1160 | struct ethtool_rxnfc *nfc) | |
1161 | { | |
1162 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1163 | struct dsa_switch *ds = p->dp->ds; | |
1164 | ||
1165 | if (!ds->ops->set_rxnfc) | |
1166 | return -EOPNOTSUPP; | |
1167 | ||
1168 | return ds->ops->set_rxnfc(ds, p->dp->index, nfc); | |
1169 | } | |
1170 | ||
91da11f8 | 1171 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1172 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1173 | .get_regs_len = dsa_slave_get_regs_len, |
1174 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
1175 | .nway_reset = dsa_slave_nway_reset, |
1176 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
1177 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1178 | .get_eeprom = dsa_slave_get_eeprom, | |
1179 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1180 | .get_strings = dsa_slave_get_strings, |
1181 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1182 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1183 | .set_wol = dsa_slave_set_wol, |
1184 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1185 | .set_eee = dsa_slave_set_eee, |
1186 | .get_eee = dsa_slave_get_eee, | |
bb10bb3e PR |
1187 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1188 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
1189 | .get_rxnfc = dsa_slave_get_rxnfc, |
1190 | .set_rxnfc = dsa_slave_set_rxnfc, | |
91da11f8 LB |
1191 | }; |
1192 | ||
3e8a72d1 | 1193 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1194 | .ndo_open = dsa_slave_open, |
1195 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1196 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1197 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1198 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1199 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
1200 | .ndo_fdb_add = switchdev_port_fdb_add, |
1201 | .ndo_fdb_del = switchdev_port_fdb_del, | |
1202 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 1203 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1204 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1205 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1206 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1207 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1208 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1209 | #endif | |
11149536 VD |
1210 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
1211 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
1212 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
44bb765c | 1213 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1214 | .ndo_setup_tc = dsa_slave_setup_tc, |
98237d43 SF |
1215 | }; |
1216 | ||
9d47c0a2 | 1217 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 1218 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 1219 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1220 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1221 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
1222 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 1223 | }; |
91da11f8 | 1224 | |
f37db85d FF |
1225 | static struct device_type dsa_type = { |
1226 | .name = "dsa", | |
1227 | }; | |
1228 | ||
0d8bcdd3 FF |
1229 | static void dsa_slave_adjust_link(struct net_device *dev) |
1230 | { | |
1231 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 1232 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
1233 | unsigned int status_changed = 0; |
1234 | ||
1235 | if (p->old_link != p->phy->link) { | |
1236 | status_changed = 1; | |
1237 | p->old_link = p->phy->link; | |
1238 | } | |
1239 | ||
1240 | if (p->old_duplex != p->phy->duplex) { | |
1241 | status_changed = 1; | |
1242 | p->old_duplex = p->phy->duplex; | |
1243 | } | |
1244 | ||
1245 | if (p->old_pause != p->phy->pause) { | |
1246 | status_changed = 1; | |
1247 | p->old_pause = p->phy->pause; | |
1248 | } | |
1249 | ||
9d490b4e | 1250 | if (ds->ops->adjust_link && status_changed) |
afdcf151 | 1251 | ds->ops->adjust_link(ds, p->dp->index, p->phy); |
ec9436ba | 1252 | |
0d8bcdd3 FF |
1253 | if (status_changed) |
1254 | phy_print_status(p->phy); | |
1255 | } | |
1256 | ||
ce31b31c FF |
1257 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1258 | struct fixed_phy_status *status) | |
1259 | { | |
b71be352 AL |
1260 | struct dsa_slave_priv *p; |
1261 | struct dsa_switch *ds; | |
1262 | ||
1263 | if (dev) { | |
1264 | p = netdev_priv(dev); | |
afdcf151 | 1265 | ds = p->dp->ds; |
9d490b4e | 1266 | if (ds->ops->fixed_link_update) |
afdcf151 | 1267 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 1268 | } |
ce31b31c FF |
1269 | |
1270 | return 0; | |
1271 | } | |
1272 | ||
91da11f8 | 1273 | /* slave device setup *******************************************************/ |
c305c165 | 1274 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1275 | struct net_device *slave_dev, |
1276 | int addr) | |
c305c165 | 1277 | { |
afdcf151 | 1278 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 1279 | |
7f854420 | 1280 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1281 | if (!p->phy) { |
1282 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1283 | return -ENODEV; |
d25b8e74 | 1284 | } |
c305c165 FF |
1285 | |
1286 | /* Use already configured phy mode */ | |
211c504a FF |
1287 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1288 | p->phy_interface = p->phy->interface; | |
4078b76c FF |
1289 | return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1290 | p->phy_interface); | |
c305c165 FF |
1291 | } |
1292 | ||
9697f1cd | 1293 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1294 | struct net_device *slave_dev) |
1295 | { | |
afdcf151 | 1296 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1297 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1298 | bool phy_is_fixed = false; |
6819563e | 1299 | u32 phy_flags = 0; |
19334920 | 1300 | int mode, ret; |
0d8bcdd3 | 1301 | |
afdcf151 | 1302 | port_dn = p->dp->dn; |
19334920 GR |
1303 | mode = of_get_phy_mode(port_dn); |
1304 | if (mode < 0) | |
1305 | mode = PHY_INTERFACE_MODE_NA; | |
1306 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1307 | |
1308 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1309 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1310 | /* In the case of a fixed PHY, the DT node associated |
1311 | * to the fixed PHY is the Port DT node | |
1312 | */ | |
1313 | ret = of_phy_register_fixed_link(port_dn); | |
1314 | if (ret) { | |
d25b8e74 | 1315 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1316 | return ret; |
0d8bcdd3 | 1317 | } |
ce31b31c | 1318 | phy_is_fixed = true; |
0d8f3c67 | 1319 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1320 | } |
1321 | ||
9d490b4e | 1322 | if (ds->ops->get_phy_flags) |
afdcf151 | 1323 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1324 | |
cd28a1a9 | 1325 | if (phy_dn) { |
d25b8e74 RK |
1326 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1327 | ||
cd28a1a9 FF |
1328 | /* If this PHY address is part of phys_mii_mask, which means |
1329 | * that we need to divert reads and writes to/from it, then we | |
1330 | * want to bind this device using the slave MII bus created by | |
1331 | * DSA to make that happen. | |
1332 | */ | |
d25b8e74 RK |
1333 | if (!phy_is_fixed && phy_id >= 0 && |
1334 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1335 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1336 | if (ret) { | |
1337 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1338 | of_node_put(phy_dn); |
cd28a1a9 | 1339 | return ret; |
d25b8e74 | 1340 | } |
cd28a1a9 FF |
1341 | } else { |
1342 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1343 | dsa_slave_adjust_link, | |
1344 | phy_flags, | |
1345 | p->phy_interface); | |
1346 | } | |
0d8f3c67 JH |
1347 | |
1348 | of_node_put(phy_dn); | |
cd28a1a9 | 1349 | } |
0d8bcdd3 | 1350 | |
ce31b31c FF |
1351 | if (p->phy && phy_is_fixed) |
1352 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1353 | ||
0d8bcdd3 FF |
1354 | /* We could not connect to a designated PHY, so use the switch internal |
1355 | * MDIO bus instead | |
1356 | */ | |
b31f65fb | 1357 | if (!p->phy) { |
afdcf151 | 1358 | ret = dsa_slave_phy_connect(p, slave_dev, p->dp->index); |
d25b8e74 | 1359 | if (ret) { |
afdcf151 VD |
1360 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1361 | p->dp->index, ret); | |
881eadab JH |
1362 | if (phy_is_fixed) |
1363 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1364 | return ret; |
d25b8e74 | 1365 | } |
b31f65fb | 1366 | } |
9697f1cd | 1367 | |
2220943a AL |
1368 | phy_attached_info(p->phy); |
1369 | ||
9697f1cd | 1370 | return 0; |
0d8bcdd3 FF |
1371 | } |
1372 | ||
448b4482 AL |
1373 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1374 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1375 | struct netdev_queue *txq, | |
1376 | void *_unused) | |
1377 | { | |
1378 | lockdep_set_class(&txq->_xmit_lock, | |
1379 | &dsa_slave_netdev_xmit_lock_key); | |
1380 | } | |
1381 | ||
24462549 FF |
1382 | int dsa_slave_suspend(struct net_device *slave_dev) |
1383 | { | |
1384 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1385 | ||
f154be24 FF |
1386 | netif_device_detach(slave_dev); |
1387 | ||
24462549 FF |
1388 | if (p->phy) { |
1389 | phy_stop(p->phy); | |
1390 | p->old_pause = -1; | |
1391 | p->old_link = -1; | |
1392 | p->old_duplex = -1; | |
1393 | phy_suspend(p->phy); | |
1394 | } | |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
1399 | int dsa_slave_resume(struct net_device *slave_dev) | |
1400 | { | |
1401 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1402 | ||
1403 | netif_device_attach(slave_dev); | |
1404 | ||
1405 | if (p->phy) { | |
1406 | phy_resume(p->phy); | |
1407 | phy_start(p->phy); | |
1408 | } | |
1409 | ||
1410 | return 0; | |
1411 | } | |
1412 | ||
d87d6f44 | 1413 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
83c0afae | 1414 | int port, const char *name) |
91da11f8 | 1415 | { |
badf3ada | 1416 | struct dsa_switch_tree *dst = ds->dst; |
83c0afae | 1417 | struct net_device *master; |
91da11f8 LB |
1418 | struct net_device *slave_dev; |
1419 | struct dsa_slave_priv *p; | |
1420 | int ret; | |
1421 | ||
83c0afae AL |
1422 | master = ds->dst->master_netdev; |
1423 | if (ds->master_netdev) | |
1424 | master = ds->master_netdev; | |
1425 | ||
c835a677 TG |
1426 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1427 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1428 | if (slave_dev == NULL) |
d87d6f44 | 1429 | return -ENOMEM; |
91da11f8 | 1430 | |
f50f2127 FF |
1431 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1432 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1433 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1434 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1435 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1436 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1437 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1438 | slave_dev->min_mtu = 0; |
1439 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1440 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1441 | |
448b4482 AL |
1442 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1443 | NULL); | |
1444 | ||
5075314e | 1445 | SET_NETDEV_DEV(slave_dev, parent); |
189b0d93 | 1446 | slave_dev->dev.of_node = ds->ports[port].dn; |
5075314e AD |
1447 | slave_dev->vlan_features = master->vlan_features; |
1448 | ||
1449 | p = netdev_priv(slave_dev); | |
afdcf151 | 1450 | p->dp = &ds->ports[port]; |
f50f2127 | 1451 | INIT_LIST_HEAD(&p->mall_tc_list); |
39a7f2a4 | 1452 | p->xmit = dst->tag_ops->xmit; |
d442ad4a | 1453 | |
0d8bcdd3 FF |
1454 | p->old_pause = -1; |
1455 | p->old_link = -1; | |
1456 | p->old_duplex = -1; | |
1457 | ||
c8b09808 | 1458 | ds->ports[port].netdev = slave_dev; |
91da11f8 LB |
1459 | ret = register_netdev(slave_dev); |
1460 | if (ret) { | |
a2ae6007 JP |
1461 | netdev_err(master, "error %d registering interface %s\n", |
1462 | ret, slave_dev->name); | |
c8b09808 | 1463 | ds->ports[port].netdev = NULL; |
91da11f8 | 1464 | free_netdev(slave_dev); |
d87d6f44 | 1465 | return ret; |
91da11f8 LB |
1466 | } |
1467 | ||
1468 | netif_carrier_off(slave_dev); | |
1469 | ||
0071f56e AL |
1470 | ret = dsa_slave_phy_setup(p, slave_dev); |
1471 | if (ret) { | |
1472 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1473 | unregister_netdev(slave_dev); |
0071f56e AL |
1474 | free_netdev(slave_dev); |
1475 | return ret; | |
1476 | } | |
1477 | ||
d87d6f44 | 1478 | return 0; |
91da11f8 | 1479 | } |
b73adef6 | 1480 | |
cda5c15b NA |
1481 | void dsa_slave_destroy(struct net_device *slave_dev) |
1482 | { | |
1483 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1484 | struct device_node *port_dn; |
1485 | ||
afdcf151 | 1486 | port_dn = p->dp->dn; |
cda5c15b NA |
1487 | |
1488 | netif_carrier_off(slave_dev); | |
881eadab | 1489 | if (p->phy) { |
cda5c15b | 1490 | phy_disconnect(p->phy); |
881eadab JH |
1491 | |
1492 | if (of_phy_is_fixed_link(port_dn)) | |
1493 | of_phy_deregister_fixed_link(port_dn); | |
1494 | } | |
cda5c15b NA |
1495 | unregister_netdev(slave_dev); |
1496 | free_netdev(slave_dev); | |
1497 | } | |
1498 | ||
b73adef6 FF |
1499 | static bool dsa_slave_dev_check(struct net_device *dev) |
1500 | { | |
1501 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1502 | } | |
1503 | ||
8e92ab3a VD |
1504 | static int dsa_slave_changeupper(struct net_device *dev, |
1505 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1506 | { |
17d7802b VD |
1507 | struct dsa_slave_priv *p = netdev_priv(dev); |
1508 | struct dsa_port *dp = p->dp; | |
8e92ab3a | 1509 | int err = NOTIFY_DONE; |
b73adef6 | 1510 | |
8e92ab3a VD |
1511 | if (netif_is_bridge_master(info->upper_dev)) { |
1512 | if (info->linking) { | |
17d7802b | 1513 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1514 | err = notifier_from_errno(err); |
1515 | } else { | |
17d7802b | 1516 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1517 | err = NOTIFY_OK; |
6debb68a | 1518 | } |
6debb68a | 1519 | } |
b73adef6 | 1520 | |
8e92ab3a | 1521 | return err; |
6debb68a | 1522 | } |
b73adef6 | 1523 | |
88e4f0ca VD |
1524 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1525 | unsigned long event, void *ptr) | |
6debb68a VD |
1526 | { |
1527 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1528 | ||
8e92ab3a VD |
1529 | if (dev->netdev_ops != &dsa_slave_netdev_ops) |
1530 | return NOTIFY_DONE; | |
1531 | ||
1532 | if (event == NETDEV_CHANGEUPPER) | |
1533 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1534 | |
b73adef6 FF |
1535 | return NOTIFY_DONE; |
1536 | } | |
88e4f0ca VD |
1537 | |
1538 | static struct notifier_block dsa_slave_nb __read_mostly = { | |
1539 | .notifier_call = dsa_slave_netdevice_event, | |
1540 | }; | |
1541 | ||
1542 | int dsa_slave_register_notifier(void) | |
1543 | { | |
1544 | return register_netdevice_notifier(&dsa_slave_nb); | |
1545 | } | |
1546 | ||
1547 | void dsa_slave_unregister_notifier(void) | |
1548 | { | |
1549 | int err; | |
1550 | ||
1551 | err = unregister_netdevice_notifier(&dsa_slave_nb); | |
1552 | if (err) | |
1553 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1554 | } |