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