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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> |
b73adef6 | 19 | #include <net/rtnetlink.h> |
98237d43 | 20 | #include <net/switchdev.h> |
b73adef6 | 21 | #include <linux/if_bridge.h> |
04ff53f9 | 22 | #include <linux/netpoll.h> |
91da11f8 LB |
23 | #include "dsa_priv.h" |
24 | ||
25 | /* slave mii_bus handling ***************************************************/ | |
26 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
27 | { | |
28 | struct dsa_switch *ds = bus->priv; | |
29 | ||
0d8bcdd3 | 30 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 31 | return ds->ops->phy_read(ds, addr, reg); |
91da11f8 LB |
32 | |
33 | return 0xffff; | |
34 | } | |
35 | ||
36 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
37 | { | |
38 | struct dsa_switch *ds = bus->priv; | |
39 | ||
0d8bcdd3 | 40 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 41 | return ds->ops->phy_write(ds, addr, reg, val); |
91da11f8 LB |
42 | |
43 | return 0; | |
44 | } | |
45 | ||
46 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
47 | { | |
48 | ds->slave_mii_bus->priv = (void *)ds; | |
49 | ds->slave_mii_bus->name = "dsa slave smi"; | |
50 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
51 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
0b7b498d FF |
52 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
53 | ds->dst->tree, ds->index); | |
c33063d6 | 54 | ds->slave_mii_bus->parent = ds->dev; |
24df8986 | 55 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
56 | } |
57 | ||
58 | ||
59 | /* slave device handling ****************************************************/ | |
abd2be00 | 60 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
61 | { |
62 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 63 | |
afdcf151 | 64 | return p->dp->ds->dst->master_netdev->ifindex; |
c0840801 LB |
65 | } |
66 | ||
b73adef6 FF |
67 | static inline bool dsa_port_is_bridged(struct dsa_slave_priv *p) |
68 | { | |
69 | return !!p->bridge_dev; | |
70 | } | |
71 | ||
4acfee81 VD |
72 | static void dsa_port_set_stp_state(struct dsa_switch *ds, int port, u8 state) |
73 | { | |
732f794c VD |
74 | struct dsa_port *dp = &ds->ports[port]; |
75 | ||
4acfee81 VD |
76 | if (ds->ops->port_stp_state_set) |
77 | ds->ops->port_stp_state_set(ds, port, state); | |
732f794c VD |
78 | |
79 | if (ds->ops->port_fast_age) { | |
80 | /* Fast age FDB entries or flush appropriate forwarding database | |
81 | * for the given port, if we are moving it from Learning or | |
82 | * Forwarding state, to Disabled or Blocking or Listening state. | |
83 | */ | |
84 | ||
85 | if ((dp->stp_state == BR_STATE_LEARNING || | |
86 | dp->stp_state == BR_STATE_FORWARDING) && | |
87 | (state == BR_STATE_DISABLED || | |
88 | state == BR_STATE_BLOCKING || | |
89 | state == BR_STATE_LISTENING)) | |
90 | ds->ops->port_fast_age(ds, port); | |
91 | } | |
92 | ||
93 | dp->stp_state = state; | |
4acfee81 VD |
94 | } |
95 | ||
91da11f8 LB |
96 | static int dsa_slave_open(struct net_device *dev) |
97 | { | |
df02c6ff | 98 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
99 | struct net_device *master = p->dp->ds->dst->master_netdev; |
100 | struct dsa_switch *ds = p->dp->ds; | |
b73adef6 FF |
101 | u8 stp_state = dsa_port_is_bridged(p) ? |
102 | BR_STATE_BLOCKING : BR_STATE_FORWARDING; | |
df02c6ff LB |
103 | int err; |
104 | ||
105 | if (!(master->flags & IFF_UP)) | |
106 | return -ENETDOWN; | |
107 | ||
8feedbb4 | 108 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 109 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
110 | if (err < 0) |
111 | goto out; | |
112 | } | |
113 | ||
114 | if (dev->flags & IFF_ALLMULTI) { | |
115 | err = dev_set_allmulti(master, 1); | |
116 | if (err < 0) | |
117 | goto del_unicast; | |
118 | } | |
119 | if (dev->flags & IFF_PROMISC) { | |
120 | err = dev_set_promiscuity(master, 1); | |
121 | if (err < 0) | |
122 | goto clear_allmulti; | |
123 | } | |
124 | ||
9d490b4e | 125 | if (ds->ops->port_enable) { |
afdcf151 | 126 | err = ds->ops->port_enable(ds, p->dp->index, p->phy); |
b2f2af21 FF |
127 | if (err) |
128 | goto clear_promisc; | |
129 | } | |
130 | ||
afdcf151 | 131 | dsa_port_set_stp_state(ds, p->dp->index, stp_state); |
b73adef6 | 132 | |
f7f1de51 FF |
133 | if (p->phy) |
134 | phy_start(p->phy); | |
135 | ||
91da11f8 | 136 | return 0; |
df02c6ff | 137 | |
b2f2af21 FF |
138 | clear_promisc: |
139 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 140 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
141 | clear_allmulti: |
142 | if (dev->flags & IFF_ALLMULTI) | |
143 | dev_set_allmulti(master, -1); | |
144 | del_unicast: | |
8feedbb4 | 145 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 146 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
147 | out: |
148 | return err; | |
91da11f8 LB |
149 | } |
150 | ||
151 | static int dsa_slave_close(struct net_device *dev) | |
152 | { | |
df02c6ff | 153 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
154 | struct net_device *master = p->dp->ds->dst->master_netdev; |
155 | struct dsa_switch *ds = p->dp->ds; | |
df02c6ff | 156 | |
f7f1de51 FF |
157 | if (p->phy) |
158 | phy_stop(p->phy); | |
159 | ||
df02c6ff | 160 | dev_mc_unsync(master, dev); |
a748ee24 | 161 | dev_uc_unsync(master, dev); |
df02c6ff LB |
162 | if (dev->flags & IFF_ALLMULTI) |
163 | dev_set_allmulti(master, -1); | |
164 | if (dev->flags & IFF_PROMISC) | |
165 | dev_set_promiscuity(master, -1); | |
166 | ||
8feedbb4 | 167 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 168 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 169 | |
9d490b4e | 170 | if (ds->ops->port_disable) |
afdcf151 | 171 | ds->ops->port_disable(ds, p->dp->index, p->phy); |
b2f2af21 | 172 | |
afdcf151 | 173 | dsa_port_set_stp_state(ds, p->dp->index, BR_STATE_DISABLED); |
b73adef6 | 174 | |
91da11f8 LB |
175 | return 0; |
176 | } | |
177 | ||
178 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
179 | { | |
180 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 181 | struct net_device *master = p->dp->ds->dst->master_netdev; |
91da11f8 LB |
182 | |
183 | if (change & IFF_ALLMULTI) | |
184 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
185 | if (change & IFF_PROMISC) | |
186 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
187 | } | |
188 | ||
189 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
190 | { | |
191 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 192 | struct net_device *master = p->dp->ds->dst->master_netdev; |
91da11f8 LB |
193 | |
194 | dev_mc_sync(master, dev); | |
a748ee24 | 195 | dev_uc_sync(master, dev); |
91da11f8 LB |
196 | } |
197 | ||
df02c6ff | 198 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 199 | { |
df02c6ff | 200 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 201 | struct net_device *master = p->dp->ds->dst->master_netdev; |
df02c6ff LB |
202 | struct sockaddr *addr = a; |
203 | int err; | |
204 | ||
205 | if (!is_valid_ether_addr(addr->sa_data)) | |
206 | return -EADDRNOTAVAIL; | |
207 | ||
208 | if (!(dev->flags & IFF_UP)) | |
209 | goto out; | |
210 | ||
8feedbb4 | 211 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 212 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
213 | if (err < 0) |
214 | return err; | |
215 | } | |
216 | ||
8feedbb4 | 217 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 218 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
219 | |
220 | out: | |
d08f161a | 221 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
222 | |
223 | return 0; | |
224 | } | |
225 | ||
11149536 | 226 | static int dsa_slave_port_vlan_add(struct net_device *dev, |
8f24f309 | 227 | const struct switchdev_obj_port_vlan *vlan, |
f8db8348 | 228 | struct switchdev_trans *trans) |
11149536 | 229 | { |
11149536 | 230 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 VD |
231 | struct dsa_port *dp = p->dp; |
232 | struct dsa_switch *ds = dp->ds; | |
11149536 | 233 | |
79a62eb2 | 234 | if (switchdev_trans_ph_prepare(trans)) { |
9d490b4e | 235 | if (!ds->ops->port_vlan_prepare || !ds->ops->port_vlan_add) |
11149536 VD |
236 | return -EOPNOTSUPP; |
237 | ||
afdcf151 | 238 | return ds->ops->port_vlan_prepare(ds, dp->index, vlan, trans); |
11149536 VD |
239 | } |
240 | ||
afdcf151 | 241 | ds->ops->port_vlan_add(ds, dp->index, vlan, trans); |
4d5770b3 | 242 | |
11149536 VD |
243 | return 0; |
244 | } | |
245 | ||
246 | static int dsa_slave_port_vlan_del(struct net_device *dev, | |
8f24f309 | 247 | const struct switchdev_obj_port_vlan *vlan) |
11149536 | 248 | { |
11149536 | 249 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 250 | struct dsa_switch *ds = p->dp->ds; |
11149536 | 251 | |
9d490b4e | 252 | if (!ds->ops->port_vlan_del) |
11149536 VD |
253 | return -EOPNOTSUPP; |
254 | ||
afdcf151 | 255 | return ds->ops->port_vlan_del(ds, p->dp->index, vlan); |
11149536 VD |
256 | } |
257 | ||
258 | static int dsa_slave_port_vlan_dump(struct net_device *dev, | |
8f24f309 | 259 | struct switchdev_obj_port_vlan *vlan, |
648b4a99 | 260 | switchdev_obj_dump_cb_t *cb) |
11149536 | 261 | { |
11149536 | 262 | struct dsa_slave_priv *p = netdev_priv(dev); |
afdcf151 | 263 | struct dsa_switch *ds = p->dp->ds; |
11149536 | 264 | |
9d490b4e | 265 | if (ds->ops->port_vlan_dump) |
afdcf151 | 266 | return ds->ops->port_vlan_dump(ds, p->dp->index, vlan, cb); |
65aebfc0 | 267 | |
477b1845 | 268 | return -EOPNOTSUPP; |
11149536 VD |
269 | } |
270 | ||
ba14d9eb | 271 | static int dsa_slave_port_fdb_add(struct net_device *dev, |
52ba57cf | 272 | const struct switchdev_obj_port_fdb *fdb, |
f8db8348 | 273 | struct switchdev_trans *trans) |
cdf09697 DM |
274 | { |
275 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 276 | struct dsa_switch *ds = p->dp->ds; |
146a3206 | 277 | |
8497aa61 | 278 | if (switchdev_trans_ph_prepare(trans)) { |
9d490b4e | 279 | if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add) |
8497aa61 | 280 | return -EOPNOTSUPP; |
cdf09697 | 281 | |
afdcf151 | 282 | return ds->ops->port_fdb_prepare(ds, p->dp->index, fdb, trans); |
8497aa61 VD |
283 | } |
284 | ||
afdcf151 | 285 | ds->ops->port_fdb_add(ds, p->dp->index, fdb, trans); |
cdf09697 | 286 | |
8497aa61 | 287 | return 0; |
cdf09697 DM |
288 | } |
289 | ||
ba14d9eb | 290 | static int dsa_slave_port_fdb_del(struct net_device *dev, |
52ba57cf | 291 | const struct switchdev_obj_port_fdb *fdb) |
cdf09697 DM |
292 | { |
293 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 294 | struct dsa_switch *ds = p->dp->ds; |
cdf09697 DM |
295 | int ret = -EOPNOTSUPP; |
296 | ||
9d490b4e | 297 | if (ds->ops->port_fdb_del) |
afdcf151 | 298 | ret = ds->ops->port_fdb_del(ds, p->dp->index, fdb); |
cdf09697 DM |
299 | |
300 | return ret; | |
301 | } | |
302 | ||
ba14d9eb | 303 | static int dsa_slave_port_fdb_dump(struct net_device *dev, |
52ba57cf | 304 | struct switchdev_obj_port_fdb *fdb, |
648b4a99 | 305 | switchdev_obj_dump_cb_t *cb) |
cdf09697 DM |
306 | { |
307 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 308 | struct dsa_switch *ds = p->dp->ds; |
cdf09697 | 309 | |
9d490b4e | 310 | if (ds->ops->port_fdb_dump) |
afdcf151 | 311 | return ds->ops->port_fdb_dump(ds, p->dp->index, fdb, cb); |
ea70ba98 | 312 | |
1a49a2fb | 313 | return -EOPNOTSUPP; |
cdf09697 DM |
314 | } |
315 | ||
8df30255 VD |
316 | static int dsa_slave_port_mdb_add(struct net_device *dev, |
317 | const struct switchdev_obj_port_mdb *mdb, | |
318 | struct switchdev_trans *trans) | |
319 | { | |
320 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 321 | struct dsa_switch *ds = p->dp->ds; |
8df30255 VD |
322 | |
323 | if (switchdev_trans_ph_prepare(trans)) { | |
324 | if (!ds->ops->port_mdb_prepare || !ds->ops->port_mdb_add) | |
325 | return -EOPNOTSUPP; | |
326 | ||
afdcf151 | 327 | return ds->ops->port_mdb_prepare(ds, p->dp->index, mdb, trans); |
8df30255 VD |
328 | } |
329 | ||
afdcf151 | 330 | ds->ops->port_mdb_add(ds, p->dp->index, mdb, trans); |
8df30255 VD |
331 | |
332 | return 0; | |
333 | } | |
334 | ||
335 | static int dsa_slave_port_mdb_del(struct net_device *dev, | |
336 | const struct switchdev_obj_port_mdb *mdb) | |
337 | { | |
338 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 339 | struct dsa_switch *ds = p->dp->ds; |
8df30255 VD |
340 | |
341 | if (ds->ops->port_mdb_del) | |
afdcf151 | 342 | return ds->ops->port_mdb_del(ds, p->dp->index, mdb); |
8df30255 VD |
343 | |
344 | return -EOPNOTSUPP; | |
345 | } | |
346 | ||
347 | static int dsa_slave_port_mdb_dump(struct net_device *dev, | |
348 | struct switchdev_obj_port_mdb *mdb, | |
349 | switchdev_obj_dump_cb_t *cb) | |
350 | { | |
351 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 352 | struct dsa_switch *ds = p->dp->ds; |
8df30255 VD |
353 | |
354 | if (ds->ops->port_mdb_dump) | |
afdcf151 | 355 | return ds->ops->port_mdb_dump(ds, p->dp->index, mdb, cb); |
8df30255 VD |
356 | |
357 | return -EOPNOTSUPP; | |
358 | } | |
359 | ||
91da11f8 LB |
360 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
361 | { | |
362 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
363 | |
364 | if (p->phy != NULL) | |
28b04113 | 365 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
366 | |
367 | return -EOPNOTSUPP; | |
368 | } | |
369 | ||
43c44a9f VD |
370 | static int dsa_slave_stp_state_set(struct net_device *dev, |
371 | const struct switchdev_attr *attr, | |
372 | struct switchdev_trans *trans) | |
b73adef6 FF |
373 | { |
374 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 375 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 376 | |
43c44a9f | 377 | if (switchdev_trans_ph_prepare(trans)) |
9d490b4e | 378 | return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP; |
b73adef6 | 379 | |
afdcf151 | 380 | dsa_port_set_stp_state(ds, p->dp->index, attr->u.stp_state); |
43c44a9f VD |
381 | |
382 | return 0; | |
b73adef6 FF |
383 | } |
384 | ||
fb2dabad VD |
385 | static int dsa_slave_vlan_filtering(struct net_device *dev, |
386 | const struct switchdev_attr *attr, | |
387 | struct switchdev_trans *trans) | |
388 | { | |
389 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 390 | struct dsa_switch *ds = p->dp->ds; |
fb2dabad VD |
391 | |
392 | /* bridge skips -EOPNOTSUPP, so skip the prepare phase */ | |
393 | if (switchdev_trans_ph_prepare(trans)) | |
394 | return 0; | |
395 | ||
9d490b4e | 396 | if (ds->ops->port_vlan_filtering) |
afdcf151 | 397 | return ds->ops->port_vlan_filtering(ds, p->dp->index, |
fb2dabad VD |
398 | attr->u.vlan_filtering); |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
34a79f63 VD |
403 | static int dsa_fastest_ageing_time(struct dsa_switch *ds, |
404 | unsigned int ageing_time) | |
405 | { | |
406 | int i; | |
407 | ||
26895e29 | 408 | for (i = 0; i < ds->num_ports; ++i) { |
34a79f63 VD |
409 | struct dsa_port *dp = &ds->ports[i]; |
410 | ||
411 | if (dp && dp->ageing_time && dp->ageing_time < ageing_time) | |
412 | ageing_time = dp->ageing_time; | |
413 | } | |
414 | ||
415 | return ageing_time; | |
416 | } | |
417 | ||
418 | static int dsa_slave_ageing_time(struct net_device *dev, | |
419 | const struct switchdev_attr *attr, | |
420 | struct switchdev_trans *trans) | |
421 | { | |
422 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 423 | struct dsa_switch *ds = p->dp->ds; |
34a79f63 VD |
424 | unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time); |
425 | unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies); | |
426 | ||
427 | /* bridge skips -EOPNOTSUPP, so skip the prepare phase */ | |
428 | if (switchdev_trans_ph_prepare(trans)) | |
429 | return 0; | |
430 | ||
431 | /* Keep the fastest ageing time in case of multiple bridges */ | |
afdcf151 | 432 | p->dp->ageing_time = ageing_time; |
34a79f63 VD |
433 | ageing_time = dsa_fastest_ageing_time(ds, ageing_time); |
434 | ||
9d490b4e VD |
435 | if (ds->ops->set_ageing_time) |
436 | return ds->ops->set_ageing_time(ds, ageing_time); | |
34a79f63 VD |
437 | |
438 | return 0; | |
439 | } | |
440 | ||
35636062 | 441 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 442 | const struct switchdev_attr *attr, |
7ea6eb3f | 443 | struct switchdev_trans *trans) |
35636062 | 444 | { |
b8d866ac | 445 | int ret; |
35636062 SF |
446 | |
447 | switch (attr->id) { | |
1f868398 | 448 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
43c44a9f | 449 | ret = dsa_slave_stp_state_set(dev, attr, trans); |
35636062 | 450 | break; |
fb2dabad VD |
451 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
452 | ret = dsa_slave_vlan_filtering(dev, attr, trans); | |
453 | break; | |
34a79f63 VD |
454 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
455 | ret = dsa_slave_ageing_time(dev, attr, trans); | |
456 | break; | |
35636062 SF |
457 | default: |
458 | ret = -EOPNOTSUPP; | |
459 | break; | |
460 | } | |
461 | ||
462 | return ret; | |
463 | } | |
464 | ||
ba14d9eb | 465 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 466 | const struct switchdev_obj *obj, |
7ea6eb3f | 467 | struct switchdev_trans *trans) |
ba14d9eb VD |
468 | { |
469 | int err; | |
470 | ||
471 | /* For the prepare phase, ensure the full set of changes is feasable in | |
472 | * one go in order to signal a failure properly. If an operation is not | |
473 | * supported, return -EOPNOTSUPP. | |
474 | */ | |
475 | ||
9e8f4a54 | 476 | switch (obj->id) { |
57d80838 | 477 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
478 | err = dsa_slave_port_fdb_add(dev, |
479 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
480 | trans); | |
ba14d9eb | 481 | break; |
8df30255 VD |
482 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
483 | err = dsa_slave_port_mdb_add(dev, SWITCHDEV_OBJ_PORT_MDB(obj), | |
484 | trans); | |
485 | break; | |
57d80838 | 486 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
487 | err = dsa_slave_port_vlan_add(dev, |
488 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
489 | trans); | |
11149536 | 490 | break; |
ba14d9eb VD |
491 | default: |
492 | err = -EOPNOTSUPP; | |
493 | break; | |
494 | } | |
495 | ||
496 | return err; | |
497 | } | |
498 | ||
499 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 500 | const struct switchdev_obj *obj) |
ba14d9eb VD |
501 | { |
502 | int err; | |
503 | ||
9e8f4a54 | 504 | switch (obj->id) { |
57d80838 | 505 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
506 | err = dsa_slave_port_fdb_del(dev, |
507 | SWITCHDEV_OBJ_PORT_FDB(obj)); | |
ba14d9eb | 508 | break; |
8df30255 VD |
509 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
510 | err = dsa_slave_port_mdb_del(dev, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
511 | break; | |
57d80838 | 512 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
513 | err = dsa_slave_port_vlan_del(dev, |
514 | SWITCHDEV_OBJ_PORT_VLAN(obj)); | |
11149536 | 515 | break; |
ba14d9eb VD |
516 | default: |
517 | err = -EOPNOTSUPP; | |
518 | break; | |
519 | } | |
520 | ||
521 | return err; | |
522 | } | |
523 | ||
524 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
525 | struct switchdev_obj *obj, |
526 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb VD |
527 | { |
528 | int err; | |
529 | ||
9e8f4a54 | 530 | switch (obj->id) { |
57d80838 | 531 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
648b4a99 JP |
532 | err = dsa_slave_port_fdb_dump(dev, |
533 | SWITCHDEV_OBJ_PORT_FDB(obj), | |
534 | cb); | |
ba14d9eb | 535 | break; |
8df30255 VD |
536 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
537 | err = dsa_slave_port_mdb_dump(dev, SWITCHDEV_OBJ_PORT_MDB(obj), | |
538 | cb); | |
539 | break; | |
57d80838 | 540 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
648b4a99 JP |
541 | err = dsa_slave_port_vlan_dump(dev, |
542 | SWITCHDEV_OBJ_PORT_VLAN(obj), | |
543 | cb); | |
11149536 | 544 | break; |
ba14d9eb VD |
545 | default: |
546 | err = -EOPNOTSUPP; | |
547 | break; | |
548 | } | |
549 | ||
550 | return err; | |
551 | } | |
552 | ||
b73adef6 FF |
553 | static int dsa_slave_bridge_port_join(struct net_device *dev, |
554 | struct net_device *br) | |
555 | { | |
556 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 557 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 FF |
558 | int ret = -EOPNOTSUPP; |
559 | ||
560 | p->bridge_dev = br; | |
561 | ||
9d490b4e | 562 | if (ds->ops->port_bridge_join) |
afdcf151 | 563 | ret = ds->ops->port_bridge_join(ds, p->dp->index, br); |
b73adef6 | 564 | |
6debb68a | 565 | return ret == -EOPNOTSUPP ? 0 : ret; |
b73adef6 FF |
566 | } |
567 | ||
16bfa702 | 568 | static void dsa_slave_bridge_port_leave(struct net_device *dev) |
b73adef6 FF |
569 | { |
570 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 571 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 FF |
572 | |
573 | ||
9d490b4e | 574 | if (ds->ops->port_bridge_leave) |
afdcf151 | 575 | ds->ops->port_bridge_leave(ds, p->dp->index); |
b73adef6 FF |
576 | |
577 | p->bridge_dev = NULL; | |
578 | ||
579 | /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer, | |
580 | * so allow it to be in BR_STATE_FORWARDING to be kept functional | |
581 | */ | |
afdcf151 | 582 | dsa_port_set_stp_state(ds, p->dp->index, BR_STATE_FORWARDING); |
b73adef6 FF |
583 | } |
584 | ||
f8e20a9f SF |
585 | static int dsa_slave_port_attr_get(struct net_device *dev, |
586 | struct switchdev_attr *attr) | |
b73adef6 FF |
587 | { |
588 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 589 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 590 | |
f8e20a9f | 591 | switch (attr->id) { |
1f868398 | 592 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
593 | attr->u.ppid.id_len = sizeof(ds->index); |
594 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
595 | break; |
596 | default: | |
597 | return -EOPNOTSUPP; | |
598 | } | |
b73adef6 FF |
599 | |
600 | return 0; | |
601 | } | |
602 | ||
04ff53f9 FF |
603 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
604 | struct sk_buff *skb) | |
605 | { | |
606 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
607 | if (p->netpoll) | |
608 | netpoll_send_skb(p->netpoll, skb); | |
609 | #else | |
610 | BUG(); | |
611 | #endif | |
612 | return NETDEV_TX_OK; | |
613 | } | |
614 | ||
3e8a72d1 FF |
615 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
616 | { | |
617 | struct dsa_slave_priv *p = netdev_priv(dev); | |
4ed70ce9 | 618 | struct sk_buff *nskb; |
3e8a72d1 | 619 | |
4ed70ce9 FF |
620 | dev->stats.tx_packets++; |
621 | dev->stats.tx_bytes += skb->len; | |
3e8a72d1 | 622 | |
4ed70ce9 FF |
623 | /* Transmit function may have to reallocate the original SKB */ |
624 | nskb = p->xmit(skb, dev); | |
625 | if (!nskb) | |
626 | return NETDEV_TX_OK; | |
5aed85ce | 627 | |
04ff53f9 FF |
628 | /* SKB for netpoll still need to be mangled with the protocol-specific |
629 | * tag to be successfully transmitted | |
630 | */ | |
631 | if (unlikely(netpoll_tx_running(dev))) | |
632 | return dsa_netpoll_send_skb(p, nskb); | |
633 | ||
4ed70ce9 FF |
634 | /* Queue the SKB for transmission on the parent interface, but |
635 | * do not modify its EtherType | |
636 | */ | |
afdcf151 | 637 | nskb->dev = p->dp->ds->dst->master_netdev; |
4ed70ce9 | 638 | dev_queue_xmit(nskb); |
5aed85ce FF |
639 | |
640 | return NETDEV_TX_OK; | |
641 | } | |
642 | ||
91da11f8 LB |
643 | /* ethtool operations *******************************************************/ |
644 | static int | |
bb10bb3e PR |
645 | dsa_slave_get_link_ksettings(struct net_device *dev, |
646 | struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
647 | { |
648 | struct dsa_slave_priv *p = netdev_priv(dev); | |
649 | int err; | |
650 | ||
651 | err = -EOPNOTSUPP; | |
652 | if (p->phy != NULL) { | |
653 | err = phy_read_status(p->phy); | |
654 | if (err == 0) | |
bb10bb3e | 655 | err = phy_ethtool_ksettings_get(p->phy, cmd); |
91da11f8 LB |
656 | } |
657 | ||
658 | return err; | |
659 | } | |
660 | ||
661 | static int | |
bb10bb3e PR |
662 | dsa_slave_set_link_ksettings(struct net_device *dev, |
663 | const struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
664 | { |
665 | struct dsa_slave_priv *p = netdev_priv(dev); | |
666 | ||
667 | if (p->phy != NULL) | |
bb10bb3e | 668 | return phy_ethtool_ksettings_set(p->phy, cmd); |
91da11f8 LB |
669 | |
670 | return -EOPNOTSUPP; | |
671 | } | |
672 | ||
673 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
674 | struct ethtool_drvinfo *drvinfo) | |
675 | { | |
7826d43f | 676 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
677 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
678 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
679 | } |
680 | ||
3d762a0f GR |
681 | static int dsa_slave_get_regs_len(struct net_device *dev) |
682 | { | |
683 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 684 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 685 | |
9d490b4e | 686 | if (ds->ops->get_regs_len) |
afdcf151 | 687 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
688 | |
689 | return -EOPNOTSUPP; | |
690 | } | |
691 | ||
692 | static void | |
693 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
694 | { | |
695 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 696 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 697 | |
9d490b4e | 698 | if (ds->ops->get_regs) |
afdcf151 | 699 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
700 | } |
701 | ||
91da11f8 LB |
702 | static int dsa_slave_nway_reset(struct net_device *dev) |
703 | { | |
704 | struct dsa_slave_priv *p = netdev_priv(dev); | |
705 | ||
706 | if (p->phy != NULL) | |
707 | return genphy_restart_aneg(p->phy); | |
708 | ||
709 | return -EOPNOTSUPP; | |
710 | } | |
711 | ||
712 | static u32 dsa_slave_get_link(struct net_device *dev) | |
713 | { | |
714 | struct dsa_slave_priv *p = netdev_priv(dev); | |
715 | ||
716 | if (p->phy != NULL) { | |
717 | genphy_update_link(p->phy); | |
718 | return p->phy->link; | |
719 | } | |
720 | ||
721 | return -EOPNOTSUPP; | |
722 | } | |
723 | ||
6793abb4 GR |
724 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
725 | { | |
726 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 727 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 728 | |
0e576044 | 729 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 730 | return ds->cd->eeprom_len; |
6793abb4 | 731 | |
9d490b4e VD |
732 | if (ds->ops->get_eeprom_len) |
733 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
734 | |
735 | return 0; | |
736 | } | |
737 | ||
738 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
739 | struct ethtool_eeprom *eeprom, u8 *data) | |
740 | { | |
741 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 742 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 743 | |
9d490b4e VD |
744 | if (ds->ops->get_eeprom) |
745 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
746 | |
747 | return -EOPNOTSUPP; | |
748 | } | |
749 | ||
750 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
751 | struct ethtool_eeprom *eeprom, u8 *data) | |
752 | { | |
753 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 754 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 755 | |
9d490b4e VD |
756 | if (ds->ops->set_eeprom) |
757 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
758 | |
759 | return -EOPNOTSUPP; | |
760 | } | |
761 | ||
91da11f8 LB |
762 | static void dsa_slave_get_strings(struct net_device *dev, |
763 | uint32_t stringset, uint8_t *data) | |
764 | { | |
765 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 766 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
767 | |
768 | if (stringset == ETH_SS_STATS) { | |
769 | int len = ETH_GSTRING_LEN; | |
770 | ||
771 | strncpy(data, "tx_packets", len); | |
772 | strncpy(data + len, "tx_bytes", len); | |
773 | strncpy(data + 2 * len, "rx_packets", len); | |
774 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 775 | if (ds->ops->get_strings) |
afdcf151 | 776 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
777 | } |
778 | } | |
779 | ||
badf3ada FF |
780 | static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev, |
781 | struct ethtool_stats *stats, | |
782 | uint64_t *data) | |
783 | { | |
784 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
9520ed8f | 785 | struct dsa_switch *ds = dst->cpu_switch; |
badf3ada FF |
786 | s8 cpu_port = dst->cpu_port; |
787 | int count = 0; | |
788 | ||
789 | if (dst->master_ethtool_ops.get_sset_count) { | |
790 | count = dst->master_ethtool_ops.get_sset_count(dev, | |
791 | ETH_SS_STATS); | |
792 | dst->master_ethtool_ops.get_ethtool_stats(dev, stats, data); | |
793 | } | |
794 | ||
9d490b4e VD |
795 | if (ds->ops->get_ethtool_stats) |
796 | ds->ops->get_ethtool_stats(ds, cpu_port, data + count); | |
badf3ada FF |
797 | } |
798 | ||
799 | static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset) | |
800 | { | |
801 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
9520ed8f | 802 | struct dsa_switch *ds = dst->cpu_switch; |
badf3ada FF |
803 | int count = 0; |
804 | ||
805 | if (dst->master_ethtool_ops.get_sset_count) | |
806 | count += dst->master_ethtool_ops.get_sset_count(dev, sset); | |
807 | ||
9d490b4e VD |
808 | if (sset == ETH_SS_STATS && ds->ops->get_sset_count) |
809 | count += ds->ops->get_sset_count(ds); | |
badf3ada FF |
810 | |
811 | return count; | |
812 | } | |
813 | ||
814 | static void dsa_cpu_port_get_strings(struct net_device *dev, | |
815 | uint32_t stringset, uint8_t *data) | |
816 | { | |
817 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
9520ed8f | 818 | struct dsa_switch *ds = dst->cpu_switch; |
badf3ada FF |
819 | s8 cpu_port = dst->cpu_port; |
820 | int len = ETH_GSTRING_LEN; | |
821 | int mcount = 0, count; | |
822 | unsigned int i; | |
823 | uint8_t pfx[4]; | |
824 | uint8_t *ndata; | |
825 | ||
826 | snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port); | |
827 | /* We do not want to be NULL-terminated, since this is a prefix */ | |
828 | pfx[sizeof(pfx) - 1] = '_'; | |
829 | ||
830 | if (dst->master_ethtool_ops.get_sset_count) { | |
831 | mcount = dst->master_ethtool_ops.get_sset_count(dev, | |
832 | ETH_SS_STATS); | |
833 | dst->master_ethtool_ops.get_strings(dev, stringset, data); | |
834 | } | |
835 | ||
9d490b4e | 836 | if (stringset == ETH_SS_STATS && ds->ops->get_strings) { |
badf3ada FF |
837 | ndata = data + mcount * len; |
838 | /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle | |
839 | * the output after to prepend our CPU port prefix we | |
840 | * constructed earlier | |
841 | */ | |
9d490b4e VD |
842 | ds->ops->get_strings(ds, cpu_port, ndata); |
843 | count = ds->ops->get_sset_count(ds); | |
badf3ada FF |
844 | for (i = 0; i < count; i++) { |
845 | memmove(ndata + (i * len + sizeof(pfx)), | |
846 | ndata + i * len, len - sizeof(pfx)); | |
847 | memcpy(ndata + i * len, pfx, sizeof(pfx)); | |
848 | } | |
849 | } | |
850 | } | |
851 | ||
91da11f8 LB |
852 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, |
853 | struct ethtool_stats *stats, | |
854 | uint64_t *data) | |
855 | { | |
856 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 857 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 | 858 | |
46e7b8d8 VD |
859 | data[0] = dev->stats.tx_packets; |
860 | data[1] = dev->stats.tx_bytes; | |
861 | data[2] = dev->stats.rx_packets; | |
862 | data[3] = dev->stats.rx_bytes; | |
9d490b4e | 863 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 864 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
865 | } |
866 | ||
867 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
868 | { | |
869 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 870 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
871 | |
872 | if (sset == ETH_SS_STATS) { | |
873 | int count; | |
874 | ||
875 | count = 4; | |
9d490b4e VD |
876 | if (ds->ops->get_sset_count) |
877 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
878 | |
879 | return count; | |
880 | } | |
881 | ||
882 | return -EOPNOTSUPP; | |
883 | } | |
884 | ||
19e57c4e FF |
885 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
886 | { | |
887 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 888 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 889 | |
9d490b4e | 890 | if (ds->ops->get_wol) |
afdcf151 | 891 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
892 | } |
893 | ||
894 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
895 | { | |
896 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 897 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
898 | int ret = -EOPNOTSUPP; |
899 | ||
9d490b4e | 900 | if (ds->ops->set_wol) |
afdcf151 | 901 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
902 | |
903 | return ret; | |
904 | } | |
905 | ||
7905288f FF |
906 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
907 | { | |
908 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 909 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
910 | int ret; |
911 | ||
9d490b4e | 912 | if (!ds->ops->set_eee) |
7905288f FF |
913 | return -EOPNOTSUPP; |
914 | ||
afdcf151 | 915 | ret = ds->ops->set_eee(ds, p->dp->index, p->phy, e); |
7905288f FF |
916 | if (ret) |
917 | return ret; | |
918 | ||
919 | if (p->phy) | |
920 | ret = phy_ethtool_set_eee(p->phy, e); | |
921 | ||
922 | return ret; | |
923 | } | |
924 | ||
925 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
926 | { | |
927 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 928 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
929 | int ret; |
930 | ||
9d490b4e | 931 | if (!ds->ops->get_eee) |
7905288f FF |
932 | return -EOPNOTSUPP; |
933 | ||
afdcf151 | 934 | ret = ds->ops->get_eee(ds, p->dp->index, e); |
7905288f FF |
935 | if (ret) |
936 | return ret; | |
937 | ||
938 | if (p->phy) | |
939 | ret = phy_ethtool_get_eee(p->phy, e); | |
940 | ||
941 | return ret; | |
942 | } | |
943 | ||
04ff53f9 FF |
944 | #ifdef CONFIG_NET_POLL_CONTROLLER |
945 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
946 | struct netpoll_info *ni) | |
947 | { | |
948 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 949 | struct dsa_switch *ds = p->dp->ds; |
04ff53f9 FF |
950 | struct net_device *master = ds->dst->master_netdev; |
951 | struct netpoll *netpoll; | |
952 | int err = 0; | |
953 | ||
954 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
955 | if (!netpoll) | |
956 | return -ENOMEM; | |
957 | ||
958 | err = __netpoll_setup(netpoll, master); | |
959 | if (err) { | |
960 | kfree(netpoll); | |
961 | goto out; | |
962 | } | |
963 | ||
964 | p->netpoll = netpoll; | |
965 | out: | |
966 | return err; | |
967 | } | |
968 | ||
969 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
970 | { | |
971 | struct dsa_slave_priv *p = netdev_priv(dev); | |
972 | struct netpoll *netpoll = p->netpoll; | |
973 | ||
974 | if (!netpoll) | |
975 | return; | |
976 | ||
977 | p->netpoll = NULL; | |
978 | ||
979 | __netpoll_free_async(netpoll); | |
980 | } | |
981 | ||
982 | static void dsa_slave_poll_controller(struct net_device *dev) | |
983 | { | |
984 | } | |
985 | #endif | |
986 | ||
44bb765c FF |
987 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
988 | char *name, size_t len) | |
989 | { | |
990 | struct dsa_slave_priv *p = netdev_priv(dev); | |
991 | ||
afdcf151 | 992 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 993 | return -EINVAL; |
3a543ef4 FF |
994 | |
995 | return 0; | |
996 | } | |
997 | ||
af42192c FF |
998 | void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops) |
999 | { | |
1000 | ops->get_sset_count = dsa_cpu_port_get_sset_count; | |
1001 | ops->get_ethtool_stats = dsa_cpu_port_get_ethtool_stats; | |
1002 | ops->get_strings = dsa_cpu_port_get_strings; | |
1003 | } | |
1004 | ||
91da11f8 | 1005 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1006 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1007 | .get_regs_len = dsa_slave_get_regs_len, |
1008 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
1009 | .nway_reset = dsa_slave_nway_reset, |
1010 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
1011 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1012 | .get_eeprom = dsa_slave_get_eeprom, | |
1013 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1014 | .get_strings = dsa_slave_get_strings, |
1015 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1016 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1017 | .set_wol = dsa_slave_set_wol, |
1018 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1019 | .set_eee = dsa_slave_set_eee, |
1020 | .get_eee = dsa_slave_get_eee, | |
bb10bb3e PR |
1021 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1022 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
91da11f8 LB |
1023 | }; |
1024 | ||
3e8a72d1 | 1025 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1026 | .ndo_open = dsa_slave_open, |
1027 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1028 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1029 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1030 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1031 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
1032 | .ndo_fdb_add = switchdev_port_fdb_add, |
1033 | .ndo_fdb_del = switchdev_port_fdb_del, | |
1034 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 1035 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1036 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1037 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1038 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1039 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1040 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1041 | #endif | |
11149536 VD |
1042 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
1043 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
1044 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
44bb765c | 1045 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
98237d43 SF |
1046 | }; |
1047 | ||
9d47c0a2 | 1048 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 1049 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 1050 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1051 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1052 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
1053 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 1054 | }; |
91da11f8 | 1055 | |
f37db85d FF |
1056 | static struct device_type dsa_type = { |
1057 | .name = "dsa", | |
1058 | }; | |
1059 | ||
0d8bcdd3 FF |
1060 | static void dsa_slave_adjust_link(struct net_device *dev) |
1061 | { | |
1062 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 1063 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
1064 | unsigned int status_changed = 0; |
1065 | ||
1066 | if (p->old_link != p->phy->link) { | |
1067 | status_changed = 1; | |
1068 | p->old_link = p->phy->link; | |
1069 | } | |
1070 | ||
1071 | if (p->old_duplex != p->phy->duplex) { | |
1072 | status_changed = 1; | |
1073 | p->old_duplex = p->phy->duplex; | |
1074 | } | |
1075 | ||
1076 | if (p->old_pause != p->phy->pause) { | |
1077 | status_changed = 1; | |
1078 | p->old_pause = p->phy->pause; | |
1079 | } | |
1080 | ||
9d490b4e | 1081 | if (ds->ops->adjust_link && status_changed) |
afdcf151 | 1082 | ds->ops->adjust_link(ds, p->dp->index, p->phy); |
ec9436ba | 1083 | |
0d8bcdd3 FF |
1084 | if (status_changed) |
1085 | phy_print_status(p->phy); | |
1086 | } | |
1087 | ||
ce31b31c FF |
1088 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1089 | struct fixed_phy_status *status) | |
1090 | { | |
b71be352 AL |
1091 | struct dsa_slave_priv *p; |
1092 | struct dsa_switch *ds; | |
1093 | ||
1094 | if (dev) { | |
1095 | p = netdev_priv(dev); | |
afdcf151 | 1096 | ds = p->dp->ds; |
9d490b4e | 1097 | if (ds->ops->fixed_link_update) |
afdcf151 | 1098 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 1099 | } |
ce31b31c FF |
1100 | |
1101 | return 0; | |
1102 | } | |
1103 | ||
91da11f8 | 1104 | /* slave device setup *******************************************************/ |
c305c165 | 1105 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1106 | struct net_device *slave_dev, |
1107 | int addr) | |
c305c165 | 1108 | { |
afdcf151 | 1109 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 1110 | |
7f854420 | 1111 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1112 | if (!p->phy) { |
1113 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1114 | return -ENODEV; |
d25b8e74 | 1115 | } |
c305c165 FF |
1116 | |
1117 | /* Use already configured phy mode */ | |
211c504a FF |
1118 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1119 | p->phy_interface = p->phy->interface; | |
4078b76c FF |
1120 | return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1121 | p->phy_interface); | |
c305c165 FF |
1122 | } |
1123 | ||
9697f1cd | 1124 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1125 | struct net_device *slave_dev) |
1126 | { | |
afdcf151 | 1127 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1128 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1129 | bool phy_is_fixed = false; |
6819563e | 1130 | u32 phy_flags = 0; |
19334920 | 1131 | int mode, ret; |
0d8bcdd3 | 1132 | |
afdcf151 | 1133 | port_dn = p->dp->dn; |
19334920 GR |
1134 | mode = of_get_phy_mode(port_dn); |
1135 | if (mode < 0) | |
1136 | mode = PHY_INTERFACE_MODE_NA; | |
1137 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1138 | |
1139 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1140 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1141 | /* In the case of a fixed PHY, the DT node associated |
1142 | * to the fixed PHY is the Port DT node | |
1143 | */ | |
1144 | ret = of_phy_register_fixed_link(port_dn); | |
1145 | if (ret) { | |
d25b8e74 | 1146 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1147 | return ret; |
0d8bcdd3 | 1148 | } |
ce31b31c | 1149 | phy_is_fixed = true; |
0d8f3c67 | 1150 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1151 | } |
1152 | ||
9d490b4e | 1153 | if (ds->ops->get_phy_flags) |
afdcf151 | 1154 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1155 | |
cd28a1a9 | 1156 | if (phy_dn) { |
d25b8e74 RK |
1157 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1158 | ||
cd28a1a9 FF |
1159 | /* If this PHY address is part of phys_mii_mask, which means |
1160 | * that we need to divert reads and writes to/from it, then we | |
1161 | * want to bind this device using the slave MII bus created by | |
1162 | * DSA to make that happen. | |
1163 | */ | |
d25b8e74 RK |
1164 | if (!phy_is_fixed && phy_id >= 0 && |
1165 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1166 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1167 | if (ret) { | |
1168 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1169 | of_node_put(phy_dn); |
cd28a1a9 | 1170 | return ret; |
d25b8e74 | 1171 | } |
cd28a1a9 FF |
1172 | } else { |
1173 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1174 | dsa_slave_adjust_link, | |
1175 | phy_flags, | |
1176 | p->phy_interface); | |
1177 | } | |
0d8f3c67 JH |
1178 | |
1179 | of_node_put(phy_dn); | |
cd28a1a9 | 1180 | } |
0d8bcdd3 | 1181 | |
ce31b31c FF |
1182 | if (p->phy && phy_is_fixed) |
1183 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1184 | ||
0d8bcdd3 FF |
1185 | /* We could not connect to a designated PHY, so use the switch internal |
1186 | * MDIO bus instead | |
1187 | */ | |
b31f65fb | 1188 | if (!p->phy) { |
afdcf151 | 1189 | ret = dsa_slave_phy_connect(p, slave_dev, p->dp->index); |
d25b8e74 | 1190 | if (ret) { |
afdcf151 VD |
1191 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1192 | p->dp->index, ret); | |
881eadab JH |
1193 | if (phy_is_fixed) |
1194 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1195 | return ret; |
d25b8e74 | 1196 | } |
b31f65fb | 1197 | } |
9697f1cd | 1198 | |
2220943a AL |
1199 | phy_attached_info(p->phy); |
1200 | ||
9697f1cd | 1201 | return 0; |
0d8bcdd3 FF |
1202 | } |
1203 | ||
448b4482 AL |
1204 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1205 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1206 | struct netdev_queue *txq, | |
1207 | void *_unused) | |
1208 | { | |
1209 | lockdep_set_class(&txq->_xmit_lock, | |
1210 | &dsa_slave_netdev_xmit_lock_key); | |
1211 | } | |
1212 | ||
24462549 FF |
1213 | int dsa_slave_suspend(struct net_device *slave_dev) |
1214 | { | |
1215 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1216 | ||
f154be24 FF |
1217 | netif_device_detach(slave_dev); |
1218 | ||
24462549 FF |
1219 | if (p->phy) { |
1220 | phy_stop(p->phy); | |
1221 | p->old_pause = -1; | |
1222 | p->old_link = -1; | |
1223 | p->old_duplex = -1; | |
1224 | phy_suspend(p->phy); | |
1225 | } | |
1226 | ||
1227 | return 0; | |
1228 | } | |
1229 | ||
1230 | int dsa_slave_resume(struct net_device *slave_dev) | |
1231 | { | |
1232 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1233 | ||
1234 | netif_device_attach(slave_dev); | |
1235 | ||
1236 | if (p->phy) { | |
1237 | phy_resume(p->phy); | |
1238 | phy_start(p->phy); | |
1239 | } | |
1240 | ||
1241 | return 0; | |
1242 | } | |
1243 | ||
d87d6f44 | 1244 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
83c0afae | 1245 | int port, const char *name) |
91da11f8 | 1246 | { |
badf3ada | 1247 | struct dsa_switch_tree *dst = ds->dst; |
83c0afae | 1248 | struct net_device *master; |
91da11f8 LB |
1249 | struct net_device *slave_dev; |
1250 | struct dsa_slave_priv *p; | |
1251 | int ret; | |
1252 | ||
83c0afae AL |
1253 | master = ds->dst->master_netdev; |
1254 | if (ds->master_netdev) | |
1255 | master = ds->master_netdev; | |
1256 | ||
c835a677 TG |
1257 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1258 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1259 | if (slave_dev == NULL) |
d87d6f44 | 1260 | return -ENOMEM; |
91da11f8 LB |
1261 | |
1262 | slave_dev->features = master->vlan_features; | |
7ad24ea4 | 1263 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1264 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1265 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1266 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1267 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1268 | slave_dev->min_mtu = 0; |
1269 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1270 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1271 | |
448b4482 AL |
1272 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1273 | NULL); | |
1274 | ||
5075314e | 1275 | SET_NETDEV_DEV(slave_dev, parent); |
189b0d93 | 1276 | slave_dev->dev.of_node = ds->ports[port].dn; |
5075314e AD |
1277 | slave_dev->vlan_features = master->vlan_features; |
1278 | ||
1279 | p = netdev_priv(slave_dev); | |
afdcf151 | 1280 | p->dp = &ds->ports[port]; |
39a7f2a4 | 1281 | p->xmit = dst->tag_ops->xmit; |
d442ad4a | 1282 | |
0d8bcdd3 FF |
1283 | p->old_pause = -1; |
1284 | p->old_link = -1; | |
1285 | p->old_duplex = -1; | |
1286 | ||
c8b09808 | 1287 | ds->ports[port].netdev = slave_dev; |
91da11f8 LB |
1288 | ret = register_netdev(slave_dev); |
1289 | if (ret) { | |
a2ae6007 JP |
1290 | netdev_err(master, "error %d registering interface %s\n", |
1291 | ret, slave_dev->name); | |
c8b09808 | 1292 | ds->ports[port].netdev = NULL; |
91da11f8 | 1293 | free_netdev(slave_dev); |
d87d6f44 | 1294 | return ret; |
91da11f8 LB |
1295 | } |
1296 | ||
1297 | netif_carrier_off(slave_dev); | |
1298 | ||
0071f56e AL |
1299 | ret = dsa_slave_phy_setup(p, slave_dev); |
1300 | if (ret) { | |
1301 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1302 | unregister_netdev(slave_dev); |
0071f56e AL |
1303 | free_netdev(slave_dev); |
1304 | return ret; | |
1305 | } | |
1306 | ||
d87d6f44 | 1307 | return 0; |
91da11f8 | 1308 | } |
b73adef6 | 1309 | |
cda5c15b NA |
1310 | void dsa_slave_destroy(struct net_device *slave_dev) |
1311 | { | |
1312 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1313 | struct device_node *port_dn; |
1314 | ||
afdcf151 | 1315 | port_dn = p->dp->dn; |
cda5c15b NA |
1316 | |
1317 | netif_carrier_off(slave_dev); | |
881eadab | 1318 | if (p->phy) { |
cda5c15b | 1319 | phy_disconnect(p->phy); |
881eadab JH |
1320 | |
1321 | if (of_phy_is_fixed_link(port_dn)) | |
1322 | of_phy_deregister_fixed_link(port_dn); | |
1323 | } | |
cda5c15b NA |
1324 | unregister_netdev(slave_dev); |
1325 | free_netdev(slave_dev); | |
1326 | } | |
1327 | ||
b73adef6 FF |
1328 | static bool dsa_slave_dev_check(struct net_device *dev) |
1329 | { | |
1330 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1331 | } | |
1332 | ||
6debb68a VD |
1333 | static int dsa_slave_port_upper_event(struct net_device *dev, |
1334 | unsigned long event, void *ptr) | |
b73adef6 | 1335 | { |
6debb68a VD |
1336 | struct netdev_notifier_changeupper_info *info = ptr; |
1337 | struct net_device *upper = info->upper_dev; | |
b73adef6 FF |
1338 | int err = 0; |
1339 | ||
6debb68a VD |
1340 | switch (event) { |
1341 | case NETDEV_CHANGEUPPER: | |
1342 | if (netif_is_bridge_master(upper)) { | |
1343 | if (info->linking) | |
1344 | err = dsa_slave_bridge_port_join(dev, upper); | |
1345 | else | |
1346 | dsa_slave_bridge_port_leave(dev); | |
1347 | } | |
b73adef6 | 1348 | |
6debb68a VD |
1349 | break; |
1350 | } | |
1351 | ||
1352 | return notifier_from_errno(err); | |
b73adef6 FF |
1353 | } |
1354 | ||
6debb68a VD |
1355 | static int dsa_slave_port_event(struct net_device *dev, unsigned long event, |
1356 | void *ptr) | |
b73adef6 | 1357 | { |
b73adef6 FF |
1358 | switch (event) { |
1359 | case NETDEV_CHANGEUPPER: | |
6debb68a VD |
1360 | return dsa_slave_port_upper_event(dev, event, ptr); |
1361 | } | |
b73adef6 | 1362 | |
6debb68a VD |
1363 | return NOTIFY_DONE; |
1364 | } | |
b73adef6 | 1365 | |
6debb68a VD |
1366 | int dsa_slave_netdevice_event(struct notifier_block *unused, |
1367 | unsigned long event, void *ptr) | |
1368 | { | |
1369 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1370 | ||
1371 | if (dsa_slave_dev_check(dev)) | |
1372 | return dsa_slave_port_event(dev, event, ptr); | |
b73adef6 | 1373 | |
b73adef6 FF |
1374 | return NOTIFY_DONE; |
1375 | } |