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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> |
c6e970a0 | 20 | #include <net/dsa.h> |
b73adef6 | 21 | #include <net/rtnetlink.h> |
98237d43 | 22 | #include <net/switchdev.h> |
f50f2127 FF |
23 | #include <net/pkt_cls.h> |
24 | #include <net/tc_act/tc_mirred.h> | |
b73adef6 | 25 | #include <linux/if_bridge.h> |
04ff53f9 | 26 | #include <linux/netpoll.h> |
91da11f8 LB |
27 | #include "dsa_priv.h" |
28 | ||
f50f2127 FF |
29 | static bool dsa_slave_dev_check(struct net_device *dev); |
30 | ||
04d3a4c6 VD |
31 | static int dsa_slave_notify(struct net_device *dev, unsigned long e, void *v) |
32 | { | |
33 | struct dsa_slave_priv *p = netdev_priv(dev); | |
34 | struct raw_notifier_head *nh = &p->dp->ds->dst->nh; | |
35 | int err; | |
36 | ||
37 | err = raw_notifier_call_chain(nh, e, v); | |
38 | ||
39 | return notifier_to_errno(err); | |
40 | } | |
41 | ||
91da11f8 LB |
42 | /* slave mii_bus handling ***************************************************/ |
43 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
44 | { | |
45 | struct dsa_switch *ds = bus->priv; | |
46 | ||
0d8bcdd3 | 47 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 48 | return ds->ops->phy_read(ds, addr, reg); |
91da11f8 LB |
49 | |
50 | return 0xffff; | |
51 | } | |
52 | ||
53 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
54 | { | |
55 | struct dsa_switch *ds = bus->priv; | |
56 | ||
0d8bcdd3 | 57 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 58 | return ds->ops->phy_write(ds, addr, reg, val); |
91da11f8 LB |
59 | |
60 | return 0; | |
61 | } | |
62 | ||
63 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
64 | { | |
65 | ds->slave_mii_bus->priv = (void *)ds; | |
66 | ds->slave_mii_bus->name = "dsa slave smi"; | |
67 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
68 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
0b7b498d FF |
69 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
70 | ds->dst->tree, ds->index); | |
c33063d6 | 71 | ds->slave_mii_bus->parent = ds->dev; |
24df8986 | 72 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
73 | } |
74 | ||
75 | ||
76 | /* slave device handling ****************************************************/ | |
abd2be00 | 77 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
78 | { |
79 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 80 | |
afdcf151 | 81 | return p->dp->ds->dst->master_netdev->ifindex; |
c0840801 LB |
82 | } |
83 | ||
a5e9a02e | 84 | static inline bool dsa_port_is_bridged(struct dsa_port *dp) |
b73adef6 | 85 | { |
a5e9a02e | 86 | return !!dp->bridge_dev; |
b73adef6 FF |
87 | } |
88 | ||
c5d35cb3 | 89 | static void dsa_slave_set_state(struct net_device *dev, u8 state) |
4acfee81 | 90 | { |
c5d35cb3 VD |
91 | struct dsa_slave_priv *p = netdev_priv(dev); |
92 | struct dsa_port *dp = p->dp; | |
93 | struct dsa_switch *ds = dp->ds; | |
94 | int port = dp->index; | |
732f794c | 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; | |
4acfee81 VD |
114 | } |
115 | ||
91da11f8 LB |
116 | static int dsa_slave_open(struct net_device *dev) |
117 | { | |
df02c6ff | 118 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
119 | struct net_device *master = p->dp->ds->dst->master_netdev; |
120 | struct dsa_switch *ds = p->dp->ds; | |
a5e9a02e | 121 | u8 stp_state = dsa_port_is_bridged(p->dp) ? |
b73adef6 | 122 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; |
df02c6ff LB |
123 | int err; |
124 | ||
125 | if (!(master->flags & IFF_UP)) | |
126 | return -ENETDOWN; | |
127 | ||
8feedbb4 | 128 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 129 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
130 | if (err < 0) |
131 | goto out; | |
132 | } | |
133 | ||
134 | if (dev->flags & IFF_ALLMULTI) { | |
135 | err = dev_set_allmulti(master, 1); | |
136 | if (err < 0) | |
137 | goto del_unicast; | |
138 | } | |
139 | if (dev->flags & IFF_PROMISC) { | |
140 | err = dev_set_promiscuity(master, 1); | |
141 | if (err < 0) | |
142 | goto clear_allmulti; | |
143 | } | |
144 | ||
9d490b4e | 145 | if (ds->ops->port_enable) { |
afdcf151 | 146 | err = ds->ops->port_enable(ds, p->dp->index, p->phy); |
b2f2af21 FF |
147 | if (err) |
148 | goto clear_promisc; | |
149 | } | |
150 | ||
c5d35cb3 | 151 | dsa_slave_set_state(dev, stp_state); |
b73adef6 | 152 | |
f7f1de51 FF |
153 | if (p->phy) |
154 | phy_start(p->phy); | |
155 | ||
91da11f8 | 156 | return 0; |
df02c6ff | 157 | |
b2f2af21 FF |
158 | clear_promisc: |
159 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 160 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
161 | clear_allmulti: |
162 | if (dev->flags & IFF_ALLMULTI) | |
163 | dev_set_allmulti(master, -1); | |
164 | del_unicast: | |
8feedbb4 | 165 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 166 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
167 | out: |
168 | return err; | |
91da11f8 LB |
169 | } |
170 | ||
171 | static int dsa_slave_close(struct net_device *dev) | |
172 | { | |
df02c6ff | 173 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
174 | struct net_device *master = p->dp->ds->dst->master_netdev; |
175 | struct dsa_switch *ds = p->dp->ds; | |
df02c6ff | 176 | |
f7f1de51 FF |
177 | if (p->phy) |
178 | phy_stop(p->phy); | |
179 | ||
df02c6ff | 180 | dev_mc_unsync(master, dev); |
a748ee24 | 181 | dev_uc_unsync(master, dev); |
df02c6ff LB |
182 | if (dev->flags & IFF_ALLMULTI) |
183 | dev_set_allmulti(master, -1); | |
184 | if (dev->flags & IFF_PROMISC) | |
185 | dev_set_promiscuity(master, -1); | |
186 | ||
8feedbb4 | 187 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 188 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 189 | |
9d490b4e | 190 | if (ds->ops->port_disable) |
afdcf151 | 191 | ds->ops->port_disable(ds, p->dp->index, p->phy); |
b2f2af21 | 192 | |
c5d35cb3 | 193 | dsa_slave_set_state(dev, BR_STATE_DISABLED); |
b73adef6 | 194 | |
91da11f8 LB |
195 | return 0; |
196 | } | |
197 | ||
198 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
199 | { | |
200 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 201 | struct net_device *master = p->dp->ds->dst->master_netdev; |
91da11f8 LB |
202 | |
203 | if (change & IFF_ALLMULTI) | |
204 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
205 | if (change & IFF_PROMISC) | |
206 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
207 | } | |
208 | ||
209 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
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 | dev_mc_sync(master, dev); | |
a748ee24 | 215 | dev_uc_sync(master, dev); |
91da11f8 LB |
216 | } |
217 | ||
df02c6ff | 218 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 219 | { |
df02c6ff | 220 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 221 | struct net_device *master = p->dp->ds->dst->master_netdev; |
df02c6ff LB |
222 | struct sockaddr *addr = a; |
223 | int err; | |
224 | ||
225 | if (!is_valid_ether_addr(addr->sa_data)) | |
226 | return -EADDRNOTAVAIL; | |
227 | ||
228 | if (!(dev->flags & IFF_UP)) | |
229 | goto out; | |
230 | ||
8feedbb4 | 231 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 232 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
233 | if (err < 0) |
234 | return err; | |
235 | } | |
236 | ||
8feedbb4 | 237 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 238 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
239 | |
240 | out: | |
d08f161a | 241 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
242 | |
243 | return 0; | |
244 | } | |
245 | ||
11149536 | 246 | static int dsa_slave_port_vlan_add(struct net_device *dev, |
8f24f309 | 247 | const struct switchdev_obj_port_vlan *vlan, |
f8db8348 | 248 | struct switchdev_trans *trans) |
11149536 | 249 | { |
11149536 | 250 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
251 | struct dsa_port *dp = p->dp; |
252 | struct dsa_switch *ds = dp->ds; | |
11149536 | 253 | |
79a62eb2 | 254 | if (switchdev_trans_ph_prepare(trans)) { |
9d490b4e | 255 | if (!ds->ops->port_vlan_prepare || !ds->ops->port_vlan_add) |
11149536 VD |
256 | return -EOPNOTSUPP; |
257 | ||
afdcf151 | 258 | return ds->ops->port_vlan_prepare(ds, dp->index, vlan, trans); |
11149536 VD |
259 | } |
260 | ||
afdcf151 | 261 | ds->ops->port_vlan_add(ds, dp->index, vlan, trans); |
4d5770b3 | 262 | |
11149536 VD |
263 | return 0; |
264 | } | |
265 | ||
266 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
8f24f309 | 267 | const struct switchdev_obj_port_vlan *vlan) |
11149536 | 268 | { |
11149536 | 269 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 270 | struct dsa_switch *ds = p->dp->ds; |
11149536 | 271 | |
9d490b4e | 272 | if (!ds->ops->port_vlan_del) |
11149536 VD |
273 | return -EOPNOTSUPP; |
274 | ||
afdcf151 | 275 | return ds->ops->port_vlan_del(ds, p->dp->index, vlan); |
11149536 VD |
276 | } |
277 | ||
278 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
8f24f309 | 279 | struct switchdev_obj_port_vlan *vlan, |
648b4a99 | 280 | switchdev_obj_dump_cb_t *cb) |
11149536 | 281 | { |
11149536 | 282 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 283 | struct dsa_switch *ds = p->dp->ds; |
11149536 | 284 | |
9d490b4e | 285 | if (ds->ops->port_vlan_dump) |
afdcf151 | 286 | return ds->ops->port_vlan_dump(ds, p->dp->index, vlan, cb); |
65aebfc0 | 287 | |
477b1845 | 288 | return -EOPNOTSUPP; |
11149536 VD |
289 | } |
290 | ||
ba14d9eb | 291 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
52ba57cf | 292 | const struct switchdev_obj_port_fdb *fdb, |
f8db8348 | 293 | struct switchdev_trans *trans) |
cdf09697 DM |
294 | { |
295 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 296 | struct dsa_switch *ds = p->dp->ds; |
146a3206 | 297 | |
8497aa61 | 298 | if (switchdev_trans_ph_prepare(trans)) { |
9d490b4e | 299 | if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add) |
8497aa61 | 300 | return -EOPNOTSUPP; |
cdf09697 | 301 | |
afdcf151 | 302 | return ds->ops->port_fdb_prepare(ds, p->dp->index, fdb, trans); |
8497aa61 VD |
303 | } |
304 | ||
afdcf151 | 305 | ds->ops->port_fdb_add(ds, p->dp->index, fdb, trans); |
cdf09697 | 306 | |
8497aa61 | 307 | return 0; |
cdf09697 DM |
308 | } |
309 | ||
ba14d9eb | 310 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
52ba57cf | 311 | const struct switchdev_obj_port_fdb *fdb) |
cdf09697 DM |
312 | { |
313 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 314 | struct dsa_switch *ds = p->dp->ds; |
cdf09697 DM |
315 | int ret = -EOPNOTSUPP; |
316 | ||
9d490b4e | 317 | if (ds->ops->port_fdb_del) |
afdcf151 | 318 | ret = ds->ops->port_fdb_del(ds, p->dp->index, fdb); |
cdf09697 DM |
319 | |
320 | return ret; | |
321 | } | |
322 | ||
ba14d9eb | 323 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
52ba57cf | 324 | struct switchdev_obj_port_fdb *fdb, |
648b4a99 | 325 | switchdev_obj_dump_cb_t *cb) |
cdf09697 DM |
326 | { |
327 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 328 | struct dsa_switch *ds = p->dp->ds; |
cdf09697 | 329 | |
9d490b4e | 330 | if (ds->ops->port_fdb_dump) |
afdcf151 | 331 | return ds->ops->port_fdb_dump(ds, p->dp->index, fdb, cb); |
ea70ba98 | 332 | |
1a49a2fb | 333 | return -EOPNOTSUPP; |
cdf09697 DM |
334 | } |
335 | ||
8df30255 VD |
336 | static int dsa_slave_port_mdb_add(struct net_device *dev, |
337 | const struct switchdev_obj_port_mdb *mdb, | |
338 | struct switchdev_trans *trans) | |
339 | { | |
340 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 341 | struct dsa_switch *ds = p->dp->ds; |
8df30255 VD |
342 | |
343 | if (switchdev_trans_ph_prepare(trans)) { | |
344 | if (!ds->ops->port_mdb_prepare || !ds->ops->port_mdb_add) | |
345 | return -EOPNOTSUPP; | |
346 | ||
afdcf151 | 347 | return ds->ops->port_mdb_prepare(ds, p->dp->index, mdb, trans); |
8df30255 VD |
348 | } |
349 | ||
afdcf151 | 350 | ds->ops->port_mdb_add(ds, p->dp->index, mdb, trans); |
8df30255 VD |
351 | |
352 | return 0; | |
353 | } | |
354 | ||
355 | static int dsa_slave_port_mdb_del(struct net_device *dev, | |
356 | const struct switchdev_obj_port_mdb *mdb) | |
357 | { | |
358 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 359 | struct dsa_switch *ds = p->dp->ds; |
8df30255 VD |
360 | |
361 | if (ds->ops->port_mdb_del) | |
afdcf151 | 362 | return ds->ops->port_mdb_del(ds, p->dp->index, mdb); |
8df30255 VD |
363 | |
364 | return -EOPNOTSUPP; | |
365 | } | |
366 | ||
367 | static int dsa_slave_port_mdb_dump(struct net_device *dev, | |
368 | struct switchdev_obj_port_mdb *mdb, | |
369 | switchdev_obj_dump_cb_t *cb) | |
370 | { | |
371 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 372 | struct dsa_switch *ds = p->dp->ds; |
8df30255 VD |
373 | |
374 | if (ds->ops->port_mdb_dump) | |
afdcf151 | 375 | return ds->ops->port_mdb_dump(ds, p->dp->index, mdb, cb); |
8df30255 VD |
376 | |
377 | return -EOPNOTSUPP; | |
378 | } | |
379 | ||
91da11f8 LB |
380 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
381 | { | |
382 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
383 | |
384 | if (p->phy != NULL) | |
28b04113 | 385 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
386 | |
387 | return -EOPNOTSUPP; | |
388 | } | |
389 | ||
43c44a9f VD |
390 | static int dsa_slave_stp_state_set(struct net_device *dev, |
391 | const struct switchdev_attr *attr, | |
392 | struct switchdev_trans *trans) | |
b73adef6 FF |
393 | { |
394 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 395 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 396 | |
43c44a9f | 397 | if (switchdev_trans_ph_prepare(trans)) |
9d490b4e | 398 | return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP; |
b73adef6 | 399 | |
c5d35cb3 | 400 | dsa_slave_set_state(dev, attr->u.stp_state); |
43c44a9f VD |
401 | |
402 | return 0; | |
b73adef6 FF |
403 | } |
404 | ||
fb2dabad VD |
405 | static int dsa_slave_vlan_filtering(struct net_device *dev, |
406 | const struct switchdev_attr *attr, | |
407 | struct switchdev_trans *trans) | |
408 | { | |
409 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 410 | struct dsa_switch *ds = p->dp->ds; |
fb2dabad VD |
411 | |
412 | /* bridge skips -EOPNOTSUPP, so skip the prepare phase */ | |
413 | if (switchdev_trans_ph_prepare(trans)) | |
414 | return 0; | |
415 | ||
9d490b4e | 416 | if (ds->ops->port_vlan_filtering) |
afdcf151 | 417 | return ds->ops->port_vlan_filtering(ds, p->dp->index, |
fb2dabad VD |
418 | attr->u.vlan_filtering); |
419 | ||
420 | return 0; | |
421 | } | |
422 | ||
e893de1b VD |
423 | static unsigned int dsa_fastest_ageing_time(struct dsa_switch *ds, |
424 | unsigned int ageing_time) | |
34a79f63 VD |
425 | { |
426 | int i; | |
427 | ||
26895e29 | 428 | for (i = 0; i < ds->num_ports; ++i) { |
34a79f63 VD |
429 | struct dsa_port *dp = &ds->ports[i]; |
430 | ||
431 | if (dp && dp->ageing_time && dp->ageing_time < ageing_time) | |
432 | ageing_time = dp->ageing_time; | |
433 | } | |
434 | ||
435 | return ageing_time; | |
436 | } | |
437 | ||
438 | static int dsa_slave_ageing_time(struct net_device *dev, | |
439 | const struct switchdev_attr *attr, | |
440 | struct switchdev_trans *trans) | |
441 | { | |
442 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 443 | struct dsa_switch *ds = p->dp->ds; |
34a79f63 VD |
444 | unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time); |
445 | unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies); | |
446 | ||
0f3da6af VD |
447 | if (switchdev_trans_ph_prepare(trans)) { |
448 | if (ds->ageing_time_min && ageing_time < ds->ageing_time_min) | |
449 | return -ERANGE; | |
450 | if (ds->ageing_time_max && ageing_time > ds->ageing_time_max) | |
451 | return -ERANGE; | |
34a79f63 | 452 | return 0; |
0f3da6af | 453 | } |
34a79f63 VD |
454 | |
455 | /* Keep the fastest ageing time in case of multiple bridges */ | |
afdcf151 | 456 | p->dp->ageing_time = ageing_time; |
34a79f63 VD |
457 | ageing_time = dsa_fastest_ageing_time(ds, ageing_time); |
458 | ||
9d490b4e VD |
459 | if (ds->ops->set_ageing_time) |
460 | return ds->ops->set_ageing_time(ds, ageing_time); | |
34a79f63 VD |
461 | |
462 | return 0; | |
463 | } | |
464 | ||
35636062 | 465 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 466 | const struct switchdev_attr *attr, |
7ea6eb3f | 467 | struct switchdev_trans *trans) |
35636062 | 468 | { |
b8d866ac | 469 | int ret; |
35636062 SF |
470 | |
471 | switch (attr->id) { | |
1f868398 | 472 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
43c44a9f | 473 | ret = dsa_slave_stp_state_set(dev, attr, trans); |
35636062 | 474 | break; |
fb2dabad VD |
475 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
476 | ret = dsa_slave_vlan_filtering(dev, attr, trans); | |
477 | break; | |
34a79f63 VD |
478 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
479 | ret = dsa_slave_ageing_time(dev, attr, trans); | |
480 | break; | |
35636062 SF |
481 | default: |
482 | ret = -EOPNOTSUPP; | |
483 | break; | |
484 | } | |
485 | ||
486 | return ret; | |
487 | } | |
488 | ||
ba14d9eb | 489 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 490 | const struct switchdev_obj *obj, |
7ea6eb3f | 491 | struct switchdev_trans *trans) |
ba14d9eb VD |
492 | { |
493 | int err; | |
494 | ||
495 | /* For the prepare phase, ensure the full set of changes is feasable in | |
496 | * one go in order to signal a failure properly. If an operation is not | |
497 | * supported, return -EOPNOTSUPP. | |
498 | */ | |
499 | ||
9e8f4a54 | 500 | switch (obj->id) { |
57d80838 | 501 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
502 | err = dsa_slave_port_fdb_add(dev, |
503 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
504 | trans); | |
ba14d9eb | 505 | break; |
8df30255 VD |
506 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
507 | err = dsa_slave_port_mdb_add(dev, SWITCHDEV_OBJ_PORT_MDB(obj), | |
508 | trans); | |
509 | break; | |
57d80838 | 510 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
511 | err = dsa_slave_port_vlan_add(dev, |
512 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
513 | trans); | |
11149536 | 514 | break; |
ba14d9eb VD |
515 | default: |
516 | err = -EOPNOTSUPP; | |
517 | break; | |
518 | } | |
519 | ||
520 | return err; | |
521 | } | |
522 | ||
523 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 524 | const struct switchdev_obj *obj) |
ba14d9eb VD |
525 | { |
526 | int err; | |
527 | ||
9e8f4a54 | 528 | switch (obj->id) { |
57d80838 | 529 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
530 | err = dsa_slave_port_fdb_del(dev, |
531 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
ba14d9eb | 532 | break; |
8df30255 VD |
533 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
534 | err = dsa_slave_port_mdb_del(dev, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
535 | break; | |
57d80838 | 536 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
537 | err = dsa_slave_port_vlan_del(dev, |
538 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
11149536 | 539 | break; |
ba14d9eb VD |
540 | default: |
541 | err = -EOPNOTSUPP; | |
542 | break; | |
543 | } | |
544 | ||
545 | return err; | |
546 | } | |
547 | ||
548 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
549 | struct switchdev_obj *obj, |
550 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb VD |
551 | { |
552 | int err; | |
553 | ||
9e8f4a54 | 554 | switch (obj->id) { |
57d80838 | 555 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
556 | err = dsa_slave_port_fdb_dump(dev, |
557 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
558 | cb); | |
ba14d9eb | 559 | break; |
8df30255 VD |
560 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
561 | err = dsa_slave_port_mdb_dump(dev, SWITCHDEV_OBJ_PORT_MDB(obj), | |
562 | cb); | |
563 | break; | |
57d80838 | 564 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
565 | err = dsa_slave_port_vlan_dump(dev, |
566 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
567 | cb); | |
11149536 | 568 | break; |
ba14d9eb VD |
569 | default: |
570 | err = -EOPNOTSUPP; | |
571 | break; | |
572 | } | |
573 | ||
574 | return err; | |
575 | } | |
576 | ||
b73adef6 FF |
577 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
578 | struct net_device *br) | |
579 | { | |
580 | struct dsa_slave_priv *p = netdev_priv(dev); | |
04d3a4c6 VD |
581 | struct dsa_notifier_bridge_info info = { |
582 | .sw_index = p->dp->ds->index, | |
583 | .port = p->dp->index, | |
584 | .br = br, | |
585 | }; | |
586 | int err; | |
b73adef6 | 587 | |
9c265426 VD |
588 | /* Here the port is already bridged. Reflect the current configuration |
589 | * so that drivers can program their chips accordingly. | |
590 | */ | |
a5e9a02e | 591 | p->dp->bridge_dev = br; |
b73adef6 | 592 | |
04d3a4c6 | 593 | err = dsa_slave_notify(dev, DSA_NOTIFIER_BRIDGE_JOIN, &info); |
b73adef6 | 594 | |
9c265426 | 595 | /* The bridging is rolled back on error */ |
04d3a4c6 | 596 | if (err) |
9c265426 | 597 | p->dp->bridge_dev = NULL; |
9c265426 | 598 | |
04d3a4c6 | 599 | return err; |
b73adef6 FF |
600 | } |
601 | ||
f123f2fb VD |
602 | static void dsa_slave_bridge_port_leave(struct net_device *dev, |
603 | struct net_device *br) | |
b73adef6 FF |
604 | { |
605 | struct dsa_slave_priv *p = netdev_priv(dev); | |
04d3a4c6 VD |
606 | struct dsa_notifier_bridge_info info = { |
607 | .sw_index = p->dp->ds->index, | |
608 | .port = p->dp->index, | |
609 | .br = br, | |
610 | }; | |
611 | int err; | |
b73adef6 | 612 | |
9c265426 VD |
613 | /* Here the port is already unbridged. Reflect the current configuration |
614 | * so that drivers can program their chips accordingly. | |
615 | */ | |
f123f2fb | 616 | p->dp->bridge_dev = NULL; |
b73adef6 | 617 | |
04d3a4c6 VD |
618 | err = dsa_slave_notify(dev, DSA_NOTIFIER_BRIDGE_LEAVE, &info); |
619 | if (err) | |
620 | netdev_err(dev, "failed to notify DSA_NOTIFIER_BRIDGE_LEAVE\n"); | |
b73adef6 FF |
621 | |
622 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
623 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
624 | */ | |
c5d35cb3 | 625 | dsa_slave_set_state(dev, BR_STATE_FORWARDING); |
b73adef6 FF |
626 | } |
627 | ||
f8e20a9f SF |
628 | static int dsa_slave_port_attr_get(struct net_device *dev, |
629 | struct switchdev_attr *attr) | |
b73adef6 FF |
630 | { |
631 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 632 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 633 | |
f8e20a9f | 634 | switch (attr->id) { |
1f868398 | 635 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
636 | attr->u.ppid.id_len = sizeof(ds->index); |
637 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
638 | break; |
639 | default: | |
640 | return -EOPNOTSUPP; | |
641 | } | |
b73adef6 FF |
642 | |
643 | return 0; | |
644 | } | |
645 | ||
04ff53f9 FF |
646 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
647 | struct sk_buff *skb) | |
648 | { | |
649 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
650 | if (p->netpoll) | |
651 | netpoll_send_skb(p->netpoll, skb); | |
652 | #else | |
653 | BUG(); | |
654 | #endif | |
655 | return NETDEV_TX_OK; | |
656 | } | |
657 | ||
3e8a72d1 FF |
658 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
659 | { | |
660 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 661 | struct sk_buff *nskb; |
3e8a72d1 | 662 | |
4ed70ce9 FF |
663 | dev->stats.tx_packets++; |
664 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 665 | |
4ed70ce9 FF |
666 | /* Transmit function may have to reallocate the original SKB */ |
667 | nskb = p->xmit(skb, dev); | |
668 | if (!nskb) | |
669 | return NETDEV_TX_OK; | |
5aed85ce | 670 | |
04ff53f9 FF |
671 | /* SKB for netpoll still need to be mangled with the protocol-specific |
672 | * tag to be successfully transmitted | |
673 | */ | |
674 | if (unlikely(netpoll_tx_running(dev))) | |
675 | return dsa_netpoll_send_skb(p, nskb); | |
676 | ||
4ed70ce9 FF |
677 | /* Queue the SKB for transmission on the parent interface, but |
678 | * do not modify its EtherType | |
679 | */ | |
afdcf151 | 680 | nskb->dev = p->dp->ds->dst->master_netdev; |
4ed70ce9 | 681 | dev_queue_xmit(nskb); |
5aed85ce FF |
682 | |
683 | return NETDEV_TX_OK; | |
684 | } | |
685 | ||
91da11f8 LB |
686 | /* ethtool operations *******************************************************/ |
687 | static int | |
bb10bb3e PR |
688 | dsa_slave_get_link_ksettings(struct net_device *dev, |
689 | struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
690 | { |
691 | struct dsa_slave_priv *p = netdev_priv(dev); | |
e69e4626 | 692 | int err = -EOPNOTSUPP; |
91da11f8 | 693 | |
e69e4626 FF |
694 | if (p->phy != NULL) |
695 | err = phy_ethtool_ksettings_get(p->phy, cmd); | |
91da11f8 LB |
696 | |
697 | return err; | |
698 | } | |
699 | ||
700 | static int | |
bb10bb3e PR |
701 | dsa_slave_set_link_ksettings(struct net_device *dev, |
702 | const struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
703 | { |
704 | struct dsa_slave_priv *p = netdev_priv(dev); | |
705 | ||
706 | if (p->phy != NULL) | |
bb10bb3e | 707 | return phy_ethtool_ksettings_set(p->phy, cmd); |
91da11f8 LB |
708 | |
709 | return -EOPNOTSUPP; | |
710 | } | |
711 | ||
712 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
713 | struct ethtool_drvinfo *drvinfo) | |
714 | { | |
7826d43f | 715 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
716 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
717 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
718 | } |
719 | ||
3d762a0f GR |
720 | static int dsa_slave_get_regs_len(struct net_device *dev) |
721 | { | |
722 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 723 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 724 | |
9d490b4e | 725 | if (ds->ops->get_regs_len) |
afdcf151 | 726 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
727 | |
728 | return -EOPNOTSUPP; | |
729 | } | |
730 | ||
731 | static void | |
732 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
733 | { | |
734 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 735 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 736 | |
9d490b4e | 737 | if (ds->ops->get_regs) |
afdcf151 | 738 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
739 | } |
740 | ||
91da11f8 LB |
741 | static int dsa_slave_nway_reset(struct net_device *dev) |
742 | { | |
743 | struct dsa_slave_priv *p = netdev_priv(dev); | |
744 | ||
745 | if (p->phy != NULL) | |
746 | return genphy_restart_aneg(p->phy); | |
747 | ||
748 | return -EOPNOTSUPP; | |
749 | } | |
750 | ||
751 | static u32 dsa_slave_get_link(struct net_device *dev) | |
752 | { | |
753 | struct dsa_slave_priv *p = netdev_priv(dev); | |
754 | ||
755 | if (p->phy != NULL) { | |
756 | genphy_update_link(p->phy); | |
757 | return p->phy->link; | |
758 | } | |
759 | ||
760 | return -EOPNOTSUPP; | |
761 | } | |
762 | ||
6793abb4 GR |
763 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
764 | { | |
765 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 766 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 767 | |
0e576044 | 768 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 769 | return ds->cd->eeprom_len; |
6793abb4 | 770 | |
9d490b4e VD |
771 | if (ds->ops->get_eeprom_len) |
772 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
773 | |
774 | return 0; | |
775 | } | |
776 | ||
777 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
778 | struct ethtool_eeprom *eeprom, u8 *data) | |
779 | { | |
780 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 781 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 782 | |
9d490b4e VD |
783 | if (ds->ops->get_eeprom) |
784 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
785 | |
786 | return -EOPNOTSUPP; | |
787 | } | |
788 | ||
789 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
790 | struct ethtool_eeprom *eeprom, u8 *data) | |
791 | { | |
792 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 793 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 794 | |
9d490b4e VD |
795 | if (ds->ops->set_eeprom) |
796 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
797 | |
798 | return -EOPNOTSUPP; | |
799 | } | |
800 | ||
91da11f8 LB |
801 | static void dsa_slave_get_strings(struct net_device *dev, |
802 | uint32_t stringset, uint8_t *data) | |
803 | { | |
804 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 805 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
806 | |
807 | if (stringset == ETH_SS_STATS) { | |
808 | int len = ETH_GSTRING_LEN; | |
809 | ||
810 | strncpy(data, "tx_packets", len); | |
811 | strncpy(data + len, "tx_bytes", len); | |
812 | strncpy(data + 2 * len, "rx_packets", len); | |
813 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 814 | if (ds->ops->get_strings) |
afdcf151 | 815 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
816 | } |
817 | } | |
818 | ||
badf3ada FF |
819 | static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev, |
820 | struct ethtool_stats *stats, | |
821 | uint64_t *data) | |
822 | { | |
823 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
9520ed8f | 824 | struct dsa_switch *ds = dst->cpu_switch; |
badf3ada FF |
825 | s8 cpu_port = dst->cpu_port; |
826 | int count = 0; | |
827 | ||
828 | if (dst->master_ethtool_ops.get_sset_count) { | |
829 | count = dst->master_ethtool_ops.get_sset_count(dev, | |
830 | ETH_SS_STATS); | |
831 | dst->master_ethtool_ops.get_ethtool_stats(dev, stats, data); | |
832 | } | |
833 | ||
9d490b4e VD |
834 | if (ds->ops->get_ethtool_stats) |
835 | ds->ops->get_ethtool_stats(ds, cpu_port, data + count); | |
badf3ada FF |
836 | } |
837 | ||
838 | static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset) | |
839 | { | |
840 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
9520ed8f | 841 | struct dsa_switch *ds = dst->cpu_switch; |
badf3ada FF |
842 | int count = 0; |
843 | ||
844 | if (dst->master_ethtool_ops.get_sset_count) | |
845 | count += dst->master_ethtool_ops.get_sset_count(dev, sset); | |
846 | ||
9d490b4e VD |
847 | if (sset == ETH_SS_STATS && ds->ops->get_sset_count) |
848 | count += ds->ops->get_sset_count(ds); | |
badf3ada FF |
849 | |
850 | return count; | |
851 | } | |
852 | ||
853 | static void dsa_cpu_port_get_strings(struct net_device *dev, | |
854 | uint32_t stringset, uint8_t *data) | |
855 | { | |
856 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
9520ed8f | 857 | struct dsa_switch *ds = dst->cpu_switch; |
badf3ada FF |
858 | s8 cpu_port = dst->cpu_port; |
859 | int len = ETH_GSTRING_LEN; | |
860 | int mcount = 0, count; | |
861 | unsigned int i; | |
862 | uint8_t pfx[4]; | |
863 | uint8_t *ndata; | |
864 | ||
865 | snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port); | |
866 | /* We do not want to be NULL-terminated, since this is a prefix */ | |
867 | pfx[sizeof(pfx) - 1] = '_'; | |
868 | ||
869 | if (dst->master_ethtool_ops.get_sset_count) { | |
870 | mcount = dst->master_ethtool_ops.get_sset_count(dev, | |
871 | ETH_SS_STATS); | |
872 | dst->master_ethtool_ops.get_strings(dev, stringset, data); | |
873 | } | |
874 | ||
9d490b4e | 875 | if (stringset == ETH_SS_STATS && ds->ops->get_strings) { |
badf3ada FF |
876 | ndata = data + mcount * len; |
877 | /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle | |
878 | * the output after to prepend our CPU port prefix we | |
879 | * constructed earlier | |
880 | */ | |
9d490b4e VD |
881 | ds->ops->get_strings(ds, cpu_port, ndata); |
882 | count = ds->ops->get_sset_count(ds); | |
badf3ada FF |
883 | for (i = 0; i < count; i++) { |
884 | memmove(ndata + (i * len + sizeof(pfx)), | |
885 | ndata + i * len, len - sizeof(pfx)); | |
886 | memcpy(ndata + i * len, pfx, sizeof(pfx)); | |
887 | } | |
888 | } | |
889 | } | |
890 | ||
91da11f8 LB |
891 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, |
892 | struct ethtool_stats *stats, | |
893 | uint64_t *data) | |
894 | { | |
895 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 896 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 | 897 | |
46e7b8d8 VD |
898 | data[0] = dev->stats.tx_packets; |
899 | data[1] = dev->stats.tx_bytes; | |
900 | data[2] = dev->stats.rx_packets; | |
901 | data[3] = dev->stats.rx_bytes; | |
9d490b4e | 902 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 903 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
904 | } |
905 | ||
906 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
907 | { | |
908 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 909 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
910 | |
911 | if (sset == ETH_SS_STATS) { | |
912 | int count; | |
913 | ||
914 | count = 4; | |
9d490b4e VD |
915 | if (ds->ops->get_sset_count) |
916 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
917 | |
918 | return count; | |
919 | } | |
920 | ||
921 | return -EOPNOTSUPP; | |
922 | } | |
923 | ||
19e57c4e FF |
924 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
925 | { | |
926 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 927 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 928 | |
9d490b4e | 929 | if (ds->ops->get_wol) |
afdcf151 | 930 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
931 | } |
932 | ||
933 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
934 | { | |
935 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 936 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
937 | int ret = -EOPNOTSUPP; |
938 | ||
9d490b4e | 939 | if (ds->ops->set_wol) |
afdcf151 | 940 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
941 | |
942 | return ret; | |
943 | } | |
944 | ||
7905288f FF |
945 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
946 | { | |
947 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 948 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
949 | int ret; |
950 | ||
9d490b4e | 951 | if (!ds->ops->set_eee) |
7905288f FF |
952 | return -EOPNOTSUPP; |
953 | ||
afdcf151 | 954 | ret = ds->ops->set_eee(ds, p->dp->index, p->phy, e); |
7905288f FF |
955 | if (ret) |
956 | return ret; | |
957 | ||
958 | if (p->phy) | |
959 | ret = phy_ethtool_set_eee(p->phy, e); | |
960 | ||
961 | return ret; | |
962 | } | |
963 | ||
964 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
965 | { | |
966 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 967 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
968 | int ret; |
969 | ||
9d490b4e | 970 | if (!ds->ops->get_eee) |
7905288f FF |
971 | return -EOPNOTSUPP; |
972 | ||
afdcf151 | 973 | ret = ds->ops->get_eee(ds, p->dp->index, e); |
7905288f FF |
974 | if (ret) |
975 | return ret; | |
976 | ||
977 | if (p->phy) | |
978 | ret = phy_ethtool_get_eee(p->phy, e); | |
979 | ||
980 | return ret; | |
981 | } | |
982 | ||
04ff53f9 FF |
983 | #ifdef CONFIG_NET_POLL_CONTROLLER |
984 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
985 | struct netpoll_info *ni) | |
986 | { | |
987 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 988 | struct dsa_switch *ds = p->dp->ds; |
04ff53f9 FF |
989 | struct net_device *master = ds->dst->master_netdev; |
990 | struct netpoll *netpoll; | |
991 | int err = 0; | |
992 | ||
993 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
994 | if (!netpoll) | |
995 | return -ENOMEM; | |
996 | ||
997 | err = __netpoll_setup(netpoll, master); | |
998 | if (err) { | |
999 | kfree(netpoll); | |
1000 | goto out; | |
1001 | } | |
1002 | ||
1003 | p->netpoll = netpoll; | |
1004 | out: | |
1005 | return err; | |
1006 | } | |
1007 | ||
1008 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
1009 | { | |
1010 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1011 | struct netpoll *netpoll = p->netpoll; | |
1012 | ||
1013 | if (!netpoll) | |
1014 | return; | |
1015 | ||
1016 | p->netpoll = NULL; | |
1017 | ||
1018 | __netpoll_free_async(netpoll); | |
1019 | } | |
1020 | ||
1021 | static void dsa_slave_poll_controller(struct net_device *dev) | |
1022 | { | |
1023 | } | |
1024 | #endif | |
1025 | ||
44bb765c FF |
1026 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
1027 | char *name, size_t len) | |
1028 | { | |
1029 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1030 | ||
afdcf151 | 1031 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 1032 | return -EINVAL; |
3a543ef4 FF |
1033 | |
1034 | return 0; | |
1035 | } | |
1036 | ||
f50f2127 FF |
1037 | static struct dsa_mall_tc_entry * |
1038 | dsa_slave_mall_tc_entry_find(struct dsa_slave_priv *p, | |
1039 | unsigned long cookie) | |
1040 | { | |
1041 | struct dsa_mall_tc_entry *mall_tc_entry; | |
1042 | ||
1043 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
1044 | if (mall_tc_entry->cookie == cookie) | |
1045 | return mall_tc_entry; | |
1046 | ||
1047 | return NULL; | |
1048 | } | |
1049 | ||
1050 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
1051 | __be16 protocol, | |
1052 | struct tc_cls_matchall_offload *cls, | |
1053 | bool ingress) | |
1054 | { | |
1055 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1056 | struct dsa_mall_tc_entry *mall_tc_entry; | |
1057 | struct dsa_switch *ds = p->dp->ds; | |
1058 | struct net *net = dev_net(dev); | |
1059 | struct dsa_slave_priv *to_p; | |
1060 | struct net_device *to_dev; | |
1061 | const struct tc_action *a; | |
1062 | int err = -EOPNOTSUPP; | |
1063 | LIST_HEAD(actions); | |
1064 | int ifindex; | |
1065 | ||
1066 | if (!ds->ops->port_mirror_add) | |
1067 | return err; | |
1068 | ||
1069 | if (!tc_single_action(cls->exts)) | |
1070 | return err; | |
1071 | ||
1072 | tcf_exts_to_list(cls->exts, &actions); | |
1073 | a = list_first_entry(&actions, struct tc_action, list); | |
1074 | ||
1075 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
1076 | struct dsa_mall_mirror_tc_entry *mirror; | |
1077 | ||
1078 | ifindex = tcf_mirred_ifindex(a); | |
1079 | to_dev = __dev_get_by_index(net, ifindex); | |
1080 | if (!to_dev) | |
1081 | return -EINVAL; | |
1082 | ||
1083 | if (!dsa_slave_dev_check(to_dev)) | |
1084 | return -EOPNOTSUPP; | |
1085 | ||
1086 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
1087 | if (!mall_tc_entry) | |
1088 | return -ENOMEM; | |
1089 | ||
1090 | mall_tc_entry->cookie = cls->cookie; | |
1091 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
1092 | mirror = &mall_tc_entry->mirror; | |
1093 | ||
1094 | to_p = netdev_priv(to_dev); | |
1095 | ||
1096 | mirror->to_local_port = to_p->dp->index; | |
1097 | mirror->ingress = ingress; | |
1098 | ||
1099 | err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, | |
1100 | ingress); | |
1101 | if (err) { | |
1102 | kfree(mall_tc_entry); | |
1103 | return err; | |
1104 | } | |
1105 | ||
1106 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
1107 | } | |
1108 | ||
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
1113 | struct tc_cls_matchall_offload *cls) | |
1114 | { | |
1115 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1116 | struct dsa_mall_tc_entry *mall_tc_entry; | |
1117 | struct dsa_switch *ds = p->dp->ds; | |
1118 | ||
1119 | if (!ds->ops->port_mirror_del) | |
1120 | return; | |
1121 | ||
1122 | mall_tc_entry = dsa_slave_mall_tc_entry_find(p, cls->cookie); | |
1123 | if (!mall_tc_entry) | |
1124 | return; | |
1125 | ||
1126 | list_del(&mall_tc_entry->list); | |
1127 | ||
1128 | switch (mall_tc_entry->type) { | |
1129 | case DSA_PORT_MALL_MIRROR: | |
1130 | ds->ops->port_mirror_del(ds, p->dp->index, | |
1131 | &mall_tc_entry->mirror); | |
1132 | break; | |
1133 | default: | |
1134 | WARN_ON(1); | |
1135 | } | |
1136 | ||
1137 | kfree(mall_tc_entry); | |
1138 | } | |
1139 | ||
1140 | static int dsa_slave_setup_tc(struct net_device *dev, u32 handle, | |
1141 | __be16 protocol, struct tc_to_netdev *tc) | |
1142 | { | |
1143 | bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS); | |
1144 | int ret = -EOPNOTSUPP; | |
1145 | ||
1146 | switch (tc->type) { | |
1147 | case TC_SETUP_MATCHALL: | |
1148 | switch (tc->cls_mall->command) { | |
1149 | case TC_CLSMATCHALL_REPLACE: | |
1150 | return dsa_slave_add_cls_matchall(dev, protocol, | |
1151 | tc->cls_mall, | |
1152 | ingress); | |
1153 | case TC_CLSMATCHALL_DESTROY: | |
1154 | dsa_slave_del_cls_matchall(dev, tc->cls_mall); | |
1155 | return 0; | |
1156 | } | |
1157 | default: | |
1158 | break; | |
1159 | } | |
1160 | ||
1161 | return ret; | |
1162 | } | |
1163 | ||
af42192c FF |
1164 | void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops) |
1165 | { | |
1166 | ops->get_sset_count = dsa_cpu_port_get_sset_count; | |
1167 | ops->get_ethtool_stats = dsa_cpu_port_get_ethtool_stats; | |
1168 | ops->get_strings = dsa_cpu_port_get_strings; | |
1169 | } | |
1170 | ||
bf9f2648 FF |
1171 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
1172 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
1173 | { | |
1174 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1175 | struct dsa_switch *ds = p->dp->ds; | |
1176 | ||
1177 | if (!ds->ops->get_rxnfc) | |
1178 | return -EOPNOTSUPP; | |
1179 | ||
1180 | return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); | |
1181 | } | |
1182 | ||
1183 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
1184 | struct ethtool_rxnfc *nfc) | |
1185 | { | |
1186 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1187 | struct dsa_switch *ds = p->dp->ds; | |
1188 | ||
1189 | if (!ds->ops->set_rxnfc) | |
1190 | return -EOPNOTSUPP; | |
1191 | ||
1192 | return ds->ops->set_rxnfc(ds, p->dp->index, nfc); | |
1193 | } | |
1194 | ||
91da11f8 | 1195 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1196 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1197 | .get_regs_len = dsa_slave_get_regs_len, |
1198 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
1199 | .nway_reset = dsa_slave_nway_reset, |
1200 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
1201 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1202 | .get_eeprom = dsa_slave_get_eeprom, | |
1203 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1204 | .get_strings = dsa_slave_get_strings, |
1205 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1206 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1207 | .set_wol = dsa_slave_set_wol, |
1208 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1209 | .set_eee = dsa_slave_set_eee, |
1210 | .get_eee = dsa_slave_get_eee, | |
bb10bb3e PR |
1211 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1212 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
1213 | .get_rxnfc = dsa_slave_get_rxnfc, |
1214 | .set_rxnfc = dsa_slave_set_rxnfc, | |
91da11f8 LB |
1215 | }; |
1216 | ||
3e8a72d1 | 1217 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1218 | .ndo_open = dsa_slave_open, |
1219 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1220 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1221 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1222 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1223 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
1224 | .ndo_fdb_add = switchdev_port_fdb_add, |
1225 | .ndo_fdb_del = switchdev_port_fdb_del, | |
1226 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 1227 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1228 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1229 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1230 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1231 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1232 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1233 | #endif | |
11149536 VD |
1234 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
1235 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
1236 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
44bb765c | 1237 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1238 | .ndo_setup_tc = dsa_slave_setup_tc, |
98237d43 SF |
1239 | }; |
1240 | ||
9d47c0a2 | 1241 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 1242 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 1243 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1244 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1245 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
1246 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 1247 | }; |
91da11f8 | 1248 | |
f37db85d FF |
1249 | static struct device_type dsa_type = { |
1250 | .name = "dsa", | |
1251 | }; | |
1252 | ||
0d8bcdd3 FF |
1253 | static void dsa_slave_adjust_link(struct net_device *dev) |
1254 | { | |
1255 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 1256 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
1257 | unsigned int status_changed = 0; |
1258 | ||
1259 | if (p->old_link != p->phy->link) { | |
1260 | status_changed = 1; | |
1261 | p->old_link = p->phy->link; | |
1262 | } | |
1263 | ||
1264 | if (p->old_duplex != p->phy->duplex) { | |
1265 | status_changed = 1; | |
1266 | p->old_duplex = p->phy->duplex; | |
1267 | } | |
1268 | ||
1269 | if (p->old_pause != p->phy->pause) { | |
1270 | status_changed = 1; | |
1271 | p->old_pause = p->phy->pause; | |
1272 | } | |
1273 | ||
9d490b4e | 1274 | if (ds->ops->adjust_link && status_changed) |
afdcf151 | 1275 | ds->ops->adjust_link(ds, p->dp->index, p->phy); |
ec9436ba | 1276 | |
0d8bcdd3 FF |
1277 | if (status_changed) |
1278 | phy_print_status(p->phy); | |
1279 | } | |
1280 | ||
ce31b31c FF |
1281 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1282 | struct fixed_phy_status *status) | |
1283 | { | |
b71be352 AL |
1284 | struct dsa_slave_priv *p; |
1285 | struct dsa_switch *ds; | |
1286 | ||
1287 | if (dev) { | |
1288 | p = netdev_priv(dev); | |
afdcf151 | 1289 | ds = p->dp->ds; |
9d490b4e | 1290 | if (ds->ops->fixed_link_update) |
afdcf151 | 1291 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 1292 | } |
ce31b31c FF |
1293 | |
1294 | return 0; | |
1295 | } | |
1296 | ||
91da11f8 | 1297 | /* slave device setup *******************************************************/ |
c305c165 | 1298 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1299 | struct net_device *slave_dev, |
1300 | int addr) | |
c305c165 | 1301 | { |
afdcf151 | 1302 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 1303 | |
7f854420 | 1304 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1305 | if (!p->phy) { |
1306 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1307 | return -ENODEV; |
d25b8e74 | 1308 | } |
c305c165 FF |
1309 | |
1310 | /* Use already configured phy mode */ | |
211c504a FF |
1311 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1312 | p->phy_interface = p->phy->interface; | |
4078b76c FF |
1313 | return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1314 | p->phy_interface); | |
c305c165 FF |
1315 | } |
1316 | ||
9697f1cd | 1317 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1318 | struct net_device *slave_dev) |
1319 | { | |
afdcf151 | 1320 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1321 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1322 | bool phy_is_fixed = false; |
6819563e | 1323 | u32 phy_flags = 0; |
19334920 | 1324 | int mode, ret; |
0d8bcdd3 | 1325 | |
afdcf151 | 1326 | port_dn = p->dp->dn; |
19334920 GR |
1327 | mode = of_get_phy_mode(port_dn); |
1328 | if (mode < 0) | |
1329 | mode = PHY_INTERFACE_MODE_NA; | |
1330 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1331 | |
1332 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1333 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1334 | /* In the case of a fixed PHY, the DT node associated |
1335 | * to the fixed PHY is the Port DT node | |
1336 | */ | |
1337 | ret = of_phy_register_fixed_link(port_dn); | |
1338 | if (ret) { | |
d25b8e74 | 1339 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1340 | return ret; |
0d8bcdd3 | 1341 | } |
ce31b31c | 1342 | phy_is_fixed = true; |
0d8f3c67 | 1343 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1344 | } |
1345 | ||
9d490b4e | 1346 | if (ds->ops->get_phy_flags) |
afdcf151 | 1347 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1348 | |
cd28a1a9 | 1349 | if (phy_dn) { |
d25b8e74 RK |
1350 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1351 | ||
cd28a1a9 FF |
1352 | /* If this PHY address is part of phys_mii_mask, which means |
1353 | * that we need to divert reads and writes to/from it, then we | |
1354 | * want to bind this device using the slave MII bus created by | |
1355 | * DSA to make that happen. | |
1356 | */ | |
d25b8e74 RK |
1357 | if (!phy_is_fixed && phy_id >= 0 && |
1358 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1359 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1360 | if (ret) { | |
1361 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1362 | of_node_put(phy_dn); |
cd28a1a9 | 1363 | return ret; |
d25b8e74 | 1364 | } |
cd28a1a9 FF |
1365 | } else { |
1366 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1367 | dsa_slave_adjust_link, | |
1368 | phy_flags, | |
1369 | p->phy_interface); | |
1370 | } | |
0d8f3c67 JH |
1371 | |
1372 | of_node_put(phy_dn); | |
cd28a1a9 | 1373 | } |
0d8bcdd3 | 1374 | |
ce31b31c FF |
1375 | if (p->phy && phy_is_fixed) |
1376 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1377 | ||
0d8bcdd3 FF |
1378 | /* We could not connect to a designated PHY, so use the switch internal |
1379 | * MDIO bus instead | |
1380 | */ | |
b31f65fb | 1381 | if (!p->phy) { |
afdcf151 | 1382 | ret = dsa_slave_phy_connect(p, slave_dev, p->dp->index); |
d25b8e74 | 1383 | if (ret) { |
afdcf151 VD |
1384 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1385 | p->dp->index, ret); | |
881eadab JH |
1386 | if (phy_is_fixed) |
1387 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1388 | return ret; |
d25b8e74 | 1389 | } |
b31f65fb | 1390 | } |
9697f1cd | 1391 | |
2220943a AL |
1392 | phy_attached_info(p->phy); |
1393 | ||
9697f1cd | 1394 | return 0; |
0d8bcdd3 FF |
1395 | } |
1396 | ||
448b4482 AL |
1397 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1398 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1399 | struct netdev_queue *txq, | |
1400 | void *_unused) | |
1401 | { | |
1402 | lockdep_set_class(&txq->_xmit_lock, | |
1403 | &dsa_slave_netdev_xmit_lock_key); | |
1404 | } | |
1405 | ||
24462549 FF |
1406 | int dsa_slave_suspend(struct net_device *slave_dev) |
1407 | { | |
1408 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1409 | ||
f154be24 FF |
1410 | netif_device_detach(slave_dev); |
1411 | ||
24462549 FF |
1412 | if (p->phy) { |
1413 | phy_stop(p->phy); | |
1414 | p->old_pause = -1; | |
1415 | p->old_link = -1; | |
1416 | p->old_duplex = -1; | |
1417 | phy_suspend(p->phy); | |
1418 | } | |
1419 | ||
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | int dsa_slave_resume(struct net_device *slave_dev) | |
1424 | { | |
1425 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1426 | ||
1427 | netif_device_attach(slave_dev); | |
1428 | ||
1429 | if (p->phy) { | |
1430 | phy_resume(p->phy); | |
1431 | phy_start(p->phy); | |
1432 | } | |
1433 | ||
1434 | return 0; | |
1435 | } | |
1436 | ||
d87d6f44 | 1437 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
83c0afae | 1438 | int port, const char *name) |
91da11f8 | 1439 | { |
badf3ada | 1440 | struct dsa_switch_tree *dst = ds->dst; |
83c0afae | 1441 | struct net_device *master; |
91da11f8 LB |
1442 | struct net_device *slave_dev; |
1443 | struct dsa_slave_priv *p; | |
1444 | int ret; | |
1445 | ||
83c0afae AL |
1446 | master = ds->dst->master_netdev; |
1447 | if (ds->master_netdev) | |
1448 | master = ds->master_netdev; | |
1449 | ||
c835a677 TG |
1450 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1451 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1452 | if (slave_dev == NULL) |
d87d6f44 | 1453 | return -ENOMEM; |
91da11f8 | 1454 | |
f50f2127 FF |
1455 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1456 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1457 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1458 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1459 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1460 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1461 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1462 | slave_dev->min_mtu = 0; |
1463 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1464 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1465 | |
448b4482 AL |
1466 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1467 | NULL); | |
1468 | ||
5075314e | 1469 | SET_NETDEV_DEV(slave_dev, parent); |
189b0d93 | 1470 | slave_dev->dev.of_node = ds->ports[port].dn; |
5075314e AD |
1471 | slave_dev->vlan_features = master->vlan_features; |
1472 | ||
1473 | p = netdev_priv(slave_dev); | |
afdcf151 | 1474 | p->dp = &ds->ports[port]; |
f50f2127 | 1475 | INIT_LIST_HEAD(&p->mall_tc_list); |
39a7f2a4 | 1476 | p->xmit = dst->tag_ops->xmit; |
d442ad4a | 1477 | |
0d8bcdd3 FF |
1478 | p->old_pause = -1; |
1479 | p->old_link = -1; | |
1480 | p->old_duplex = -1; | |
1481 | ||
c8b09808 | 1482 | ds->ports[port].netdev = slave_dev; |
91da11f8 LB |
1483 | ret = register_netdev(slave_dev); |
1484 | if (ret) { | |
a2ae6007 JP |
1485 | netdev_err(master, "error %d registering interface %s\n", |
1486 | ret, slave_dev->name); | |
c8b09808 | 1487 | ds->ports[port].netdev = NULL; |
91da11f8 | 1488 | free_netdev(slave_dev); |
d87d6f44 | 1489 | return ret; |
91da11f8 LB |
1490 | } |
1491 | ||
1492 | netif_carrier_off(slave_dev); | |
1493 | ||
0071f56e AL |
1494 | ret = dsa_slave_phy_setup(p, slave_dev); |
1495 | if (ret) { | |
1496 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1497 | unregister_netdev(slave_dev); |
0071f56e AL |
1498 | free_netdev(slave_dev); |
1499 | return ret; | |
1500 | } | |
1501 | ||
d87d6f44 | 1502 | return 0; |
91da11f8 | 1503 | } |
b73adef6 | 1504 | |
cda5c15b NA |
1505 | void dsa_slave_destroy(struct net_device *slave_dev) |
1506 | { | |
1507 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1508 | struct device_node *port_dn; |
1509 | ||
afdcf151 | 1510 | port_dn = p->dp->dn; |
cda5c15b NA |
1511 | |
1512 | netif_carrier_off(slave_dev); | |
881eadab | 1513 | if (p->phy) { |
cda5c15b | 1514 | phy_disconnect(p->phy); |
881eadab JH |
1515 | |
1516 | if (of_phy_is_fixed_link(port_dn)) | |
1517 | of_phy_deregister_fixed_link(port_dn); | |
1518 | } | |
cda5c15b NA |
1519 | unregister_netdev(slave_dev); |
1520 | free_netdev(slave_dev); | |
1521 | } | |
1522 | ||
b73adef6 FF |
1523 | static bool dsa_slave_dev_check(struct net_device *dev) |
1524 | { | |
1525 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1526 | } | |
1527 | ||
8e92ab3a VD |
1528 | static int dsa_slave_changeupper(struct net_device *dev, |
1529 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1530 | { |
8e92ab3a | 1531 | int err = NOTIFY_DONE; |
b73adef6 | 1532 | |
8e92ab3a VD |
1533 | if (netif_is_bridge_master(info->upper_dev)) { |
1534 | if (info->linking) { | |
1535 | err = dsa_slave_bridge_port_join(dev, info->upper_dev); | |
1536 | err = notifier_from_errno(err); | |
1537 | } else { | |
1538 | dsa_slave_bridge_port_leave(dev, info->upper_dev); | |
1539 | err = NOTIFY_OK; | |
6debb68a | 1540 | } |
6debb68a | 1541 | } |
b73adef6 | 1542 | |
8e92ab3a | 1543 | return err; |
6debb68a | 1544 | } |
b73adef6 | 1545 | |
88e4f0ca VD |
1546 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1547 | unsigned long event, void *ptr) | |
6debb68a VD |
1548 | { |
1549 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1550 | ||
8e92ab3a VD |
1551 | if (dev->netdev_ops != &dsa_slave_netdev_ops) |
1552 | return NOTIFY_DONE; | |
1553 | ||
1554 | if (event == NETDEV_CHANGEUPPER) | |
1555 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1556 | |
b73adef6 FF |
1557 | return NOTIFY_DONE; |
1558 | } | |
88e4f0ca VD |
1559 | |
1560 | static struct notifier_block dsa_slave_nb __read_mostly = { | |
1561 | .notifier_call = dsa_slave_netdevice_event, | |
1562 | }; | |
1563 | ||
1564 | int dsa_slave_register_notifier(void) | |
1565 | { | |
1566 | return register_netdevice_notifier(&dsa_slave_nb); | |
1567 | } | |
1568 | ||
1569 | void dsa_slave_unregister_notifier(void) | |
1570 | { | |
1571 | int err; | |
1572 | ||
1573 | err = unregister_netdevice_notifier(&dsa_slave_nb); | |
1574 | if (err) | |
1575 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1576 | } |