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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> |
f50f2127 FF |
20 | #include <net/pkt_cls.h> |
21 | #include <net/tc_act/tc_mirred.h> | |
b73adef6 | 22 | #include <linux/if_bridge.h> |
04ff53f9 | 23 | #include <linux/netpoll.h> |
90af1059 | 24 | #include <linux/ptp_classify.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 | 57 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
49463b7f | 58 | ds->dst->index, 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 | 66 | { |
d0006b00 | 67 | return dsa_slave_to_master(dev)->ifindex; |
c0840801 LB |
68 | } |
69 | ||
91da11f8 LB |
70 | static int dsa_slave_open(struct net_device *dev) |
71 | { | |
d0006b00 | 72 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 73 | struct dsa_port *dp = dsa_slave_to_port(dev); |
df02c6ff LB |
74 | int err; |
75 | ||
76 | if (!(master->flags & IFF_UP)) | |
77 | return -ENETDOWN; | |
78 | ||
8feedbb4 | 79 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 80 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
81 | if (err < 0) |
82 | goto out; | |
83 | } | |
84 | ||
85 | if (dev->flags & IFF_ALLMULTI) { | |
86 | err = dev_set_allmulti(master, 1); | |
87 | if (err < 0) | |
88 | goto del_unicast; | |
89 | } | |
90 | if (dev->flags & IFF_PROMISC) { | |
91 | err = dev_set_promiscuity(master, 1); | |
92 | if (err < 0) | |
93 | goto clear_allmulti; | |
94 | } | |
95 | ||
0115dcd1 | 96 | err = dsa_port_enable(dp, dev->phydev); |
fb8a6a2b VD |
97 | if (err) |
98 | goto clear_promisc; | |
b73adef6 | 99 | |
0115dcd1 VD |
100 | if (dev->phydev) |
101 | phy_start(dev->phydev); | |
f7f1de51 | 102 | |
91da11f8 | 103 | return 0; |
df02c6ff | 104 | |
b2f2af21 FF |
105 | clear_promisc: |
106 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 107 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
108 | clear_allmulti: |
109 | if (dev->flags & IFF_ALLMULTI) | |
110 | dev_set_allmulti(master, -1); | |
111 | del_unicast: | |
8feedbb4 | 112 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 113 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
114 | out: |
115 | return err; | |
91da11f8 LB |
116 | } |
117 | ||
118 | static int dsa_slave_close(struct net_device *dev) | |
119 | { | |
d0006b00 | 120 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 121 | struct dsa_port *dp = dsa_slave_to_port(dev); |
df02c6ff | 122 | |
0115dcd1 VD |
123 | if (dev->phydev) |
124 | phy_stop(dev->phydev); | |
f7f1de51 | 125 | |
0115dcd1 | 126 | dsa_port_disable(dp, dev->phydev); |
6457edfe | 127 | |
df02c6ff | 128 | dev_mc_unsync(master, dev); |
a748ee24 | 129 | dev_uc_unsync(master, dev); |
df02c6ff LB |
130 | if (dev->flags & IFF_ALLMULTI) |
131 | dev_set_allmulti(master, -1); | |
132 | if (dev->flags & IFF_PROMISC) | |
133 | dev_set_promiscuity(master, -1); | |
134 | ||
8feedbb4 | 135 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 136 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 137 | |
91da11f8 LB |
138 | return 0; |
139 | } | |
140 | ||
141 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
142 | { | |
d0006b00 | 143 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
144 | |
145 | if (change & IFF_ALLMULTI) | |
146 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
147 | if (change & IFF_PROMISC) | |
148 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
149 | } | |
150 | ||
151 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
152 | { | |
d0006b00 | 153 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
154 | |
155 | dev_mc_sync(master, dev); | |
a748ee24 | 156 | dev_uc_sync(master, dev); |
91da11f8 LB |
157 | } |
158 | ||
df02c6ff | 159 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 160 | { |
d0006b00 | 161 | struct net_device *master = dsa_slave_to_master(dev); |
df02c6ff LB |
162 | struct sockaddr *addr = a; |
163 | int err; | |
164 | ||
165 | if (!is_valid_ether_addr(addr->sa_data)) | |
166 | return -EADDRNOTAVAIL; | |
167 | ||
168 | if (!(dev->flags & IFF_UP)) | |
169 | goto out; | |
170 | ||
8feedbb4 | 171 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 172 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
173 | if (err < 0) |
174 | return err; | |
175 | } | |
176 | ||
8feedbb4 | 177 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 178 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
179 | |
180 | out: | |
d08f161a | 181 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
182 | |
183 | return 0; | |
184 | } | |
185 | ||
2bedde1a AS |
186 | struct dsa_slave_dump_ctx { |
187 | struct net_device *dev; | |
188 | struct sk_buff *skb; | |
189 | struct netlink_callback *cb; | |
190 | int idx; | |
191 | }; | |
192 | ||
193 | static int | |
194 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
195 | bool is_static, void *data) | |
196 | { | |
197 | struct dsa_slave_dump_ctx *dump = data; | |
198 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
199 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
200 | struct nlmsghdr *nlh; | |
201 | struct ndmsg *ndm; | |
202 | ||
203 | if (dump->idx < dump->cb->args[2]) | |
204 | goto skip; | |
205 | ||
206 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
207 | sizeof(*ndm), NLM_F_MULTI); | |
208 | if (!nlh) | |
209 | return -EMSGSIZE; | |
210 | ||
211 | ndm = nlmsg_data(nlh); | |
212 | ndm->ndm_family = AF_BRIDGE; | |
213 | ndm->ndm_pad1 = 0; | |
214 | ndm->ndm_pad2 = 0; | |
215 | ndm->ndm_flags = NTF_SELF; | |
216 | ndm->ndm_type = 0; | |
217 | ndm->ndm_ifindex = dump->dev->ifindex; | |
218 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
219 | ||
220 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
221 | goto nla_put_failure; | |
222 | ||
223 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
224 | goto nla_put_failure; | |
225 | ||
226 | nlmsg_end(dump->skb, nlh); | |
227 | ||
228 | skip: | |
229 | dump->idx++; | |
230 | return 0; | |
231 | ||
232 | nla_put_failure: | |
233 | nlmsg_cancel(dump->skb, nlh); | |
234 | return -EMSGSIZE; | |
235 | } | |
236 | ||
237 | static int | |
238 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
239 | struct net_device *dev, struct net_device *filter_dev, | |
240 | int *idx) | |
241 | { | |
d945097b | 242 | struct dsa_port *dp = dsa_slave_to_port(dev); |
2bedde1a AS |
243 | struct dsa_slave_dump_ctx dump = { |
244 | .dev = dev, | |
245 | .skb = skb, | |
246 | .cb = cb, | |
247 | .idx = *idx, | |
248 | }; | |
2bedde1a AS |
249 | int err; |
250 | ||
de40fc5d | 251 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 252 | *idx = dump.idx; |
de40fc5d | 253 | |
2bedde1a AS |
254 | return err; |
255 | } | |
256 | ||
91da11f8 LB |
257 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
258 | { | |
0336369d BS |
259 | struct dsa_slave_priv *p = netdev_priv(dev); |
260 | struct dsa_switch *ds = p->dp->ds; | |
261 | int port = p->dp->index; | |
262 | ||
263 | /* Pass through to switch driver if it supports timestamping */ | |
264 | switch (cmd) { | |
265 | case SIOCGHWTSTAMP: | |
266 | if (ds->ops->port_hwtstamp_get) | |
267 | return ds->ops->port_hwtstamp_get(ds, port, ifr); | |
268 | break; | |
269 | case SIOCSHWTSTAMP: | |
270 | if (ds->ops->port_hwtstamp_set) | |
271 | return ds->ops->port_hwtstamp_set(ds, port, ifr); | |
272 | break; | |
273 | } | |
274 | ||
0115dcd1 | 275 | if (!dev->phydev) |
f4344e0a | 276 | return -ENODEV; |
91da11f8 | 277 | |
0115dcd1 | 278 | return phy_mii_ioctl(dev->phydev, ifr, cmd); |
91da11f8 LB |
279 | } |
280 | ||
35636062 | 281 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 282 | const struct switchdev_attr *attr, |
7ea6eb3f | 283 | struct switchdev_trans *trans) |
35636062 | 284 | { |
d945097b | 285 | struct dsa_port *dp = dsa_slave_to_port(dev); |
b8d866ac | 286 | int ret; |
35636062 SF |
287 | |
288 | switch (attr->id) { | |
1f868398 | 289 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 290 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 291 | break; |
fb2dabad | 292 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
293 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
294 | trans); | |
fb2dabad | 295 | break; |
34a79f63 | 296 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 297 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 298 | break; |
35636062 SF |
299 | default: |
300 | ret = -EOPNOTSUPP; | |
301 | break; | |
302 | } | |
303 | ||
304 | return ret; | |
305 | } | |
306 | ||
ba14d9eb | 307 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 308 | const struct switchdev_obj *obj, |
7ea6eb3f | 309 | struct switchdev_trans *trans) |
ba14d9eb | 310 | { |
d945097b | 311 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
312 | int err; |
313 | ||
314 | /* For the prepare phase, ensure the full set of changes is feasable in | |
315 | * one go in order to signal a failure properly. If an operation is not | |
316 | * supported, return -EOPNOTSUPP. | |
317 | */ | |
318 | ||
9e8f4a54 | 319 | switch (obj->id) { |
8df30255 | 320 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 321 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 322 | break; |
5f4dbc50 AL |
323 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
324 | /* DSA can directly translate this to a normal MDB add, | |
325 | * but on the CPU port. | |
326 | */ | |
327 | err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj), | |
328 | trans); | |
329 | break; | |
57d80838 | 330 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
331 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
332 | trans); | |
11149536 | 333 | break; |
ba14d9eb VD |
334 | default: |
335 | err = -EOPNOTSUPP; | |
336 | break; | |
337 | } | |
338 | ||
339 | return err; | |
340 | } | |
341 | ||
342 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 343 | const struct switchdev_obj *obj) |
ba14d9eb | 344 | { |
d945097b | 345 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
346 | int err; |
347 | ||
9e8f4a54 | 348 | switch (obj->id) { |
8df30255 | 349 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 350 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 351 | break; |
5f4dbc50 AL |
352 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
353 | /* DSA can directly translate this to a normal MDB add, | |
354 | * but on the CPU port. | |
355 | */ | |
356 | err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
357 | break; | |
57d80838 | 358 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 359 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 360 | break; |
ba14d9eb VD |
361 | default: |
362 | err = -EOPNOTSUPP; | |
363 | break; | |
364 | } | |
365 | ||
366 | return err; | |
367 | } | |
368 | ||
f8e20a9f SF |
369 | static int dsa_slave_port_attr_get(struct net_device *dev, |
370 | struct switchdev_attr *attr) | |
b73adef6 | 371 | { |
d945097b VD |
372 | struct dsa_port *dp = dsa_slave_to_port(dev); |
373 | struct dsa_switch *ds = dp->ds; | |
a42c8e33 | 374 | struct dsa_switch_tree *dst = ds->dst; |
b73adef6 | 375 | |
f8e20a9f | 376 | switch (attr->id) { |
1f868398 | 377 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
a42c8e33 AL |
378 | attr->u.ppid.id_len = sizeof(dst->index); |
379 | memcpy(&attr->u.ppid.id, &dst->index, attr->u.ppid.id_len); | |
f8e20a9f | 380 | break; |
c9e2105e AS |
381 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT: |
382 | attr->u.brport_flags_support = 0; | |
383 | break; | |
f8e20a9f SF |
384 | default: |
385 | return -EOPNOTSUPP; | |
386 | } | |
b73adef6 FF |
387 | |
388 | return 0; | |
389 | } | |
390 | ||
4fa7b718 VD |
391 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
392 | struct sk_buff *skb) | |
04ff53f9 FF |
393 | { |
394 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
395 | struct dsa_slave_priv *p = netdev_priv(dev); |
396 | ||
04ff53f9 FF |
397 | if (p->netpoll) |
398 | netpoll_send_skb(p->netpoll, skb); | |
399 | #else | |
400 | BUG(); | |
401 | #endif | |
402 | return NETDEV_TX_OK; | |
403 | } | |
404 | ||
90af1059 BS |
405 | static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p, |
406 | struct sk_buff *skb) | |
407 | { | |
408 | struct dsa_switch *ds = p->dp->ds; | |
409 | struct sk_buff *clone; | |
410 | unsigned int type; | |
411 | ||
412 | type = ptp_classify_raw(skb); | |
413 | if (type == PTP_CLASS_NONE) | |
414 | return; | |
415 | ||
416 | if (!ds->ops->port_txtstamp) | |
417 | return; | |
418 | ||
419 | clone = skb_clone_sk(skb); | |
420 | if (!clone) | |
421 | return; | |
422 | ||
423 | if (ds->ops->port_txtstamp(ds, p->dp->index, clone, type)) | |
424 | return; | |
425 | ||
426 | kfree_skb(clone); | |
427 | } | |
428 | ||
3e8a72d1 FF |
429 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
430 | { | |
431 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 432 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 433 | struct sk_buff *nskb; |
3e8a72d1 | 434 | |
5f6b4e14 FF |
435 | s = this_cpu_ptr(p->stats64); |
436 | u64_stats_update_begin(&s->syncp); | |
437 | s->tx_packets++; | |
438 | s->tx_bytes += skb->len; | |
439 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 440 | |
90af1059 BS |
441 | /* Identify PTP protocol packets, clone them, and pass them to the |
442 | * switch driver | |
443 | */ | |
444 | dsa_skb_tx_timestamp(p, skb); | |
445 | ||
fe47d563 VD |
446 | /* Transmit function may have to reallocate the original SKB, |
447 | * in which case it must have freed it. Only free it here on error. | |
448 | */ | |
4ed70ce9 | 449 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
450 | if (!nskb) { |
451 | kfree_skb(skb); | |
4ed70ce9 | 452 | return NETDEV_TX_OK; |
fe47d563 | 453 | } |
5aed85ce | 454 | |
04ff53f9 FF |
455 | /* SKB for netpoll still need to be mangled with the protocol-specific |
456 | * tag to be successfully transmitted | |
457 | */ | |
458 | if (unlikely(netpoll_tx_running(dev))) | |
4fa7b718 | 459 | return dsa_slave_netpoll_send_skb(dev, nskb); |
04ff53f9 | 460 | |
4ed70ce9 FF |
461 | /* Queue the SKB for transmission on the parent interface, but |
462 | * do not modify its EtherType | |
463 | */ | |
d0006b00 | 464 | nskb->dev = dsa_slave_to_master(dev); |
4ed70ce9 | 465 | dev_queue_xmit(nskb); |
5aed85ce FF |
466 | |
467 | return NETDEV_TX_OK; | |
468 | } | |
469 | ||
91da11f8 | 470 | /* ethtool operations *******************************************************/ |
91da11f8 | 471 | |
91da11f8 LB |
472 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
473 | struct ethtool_drvinfo *drvinfo) | |
474 | { | |
7826d43f | 475 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
476 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
477 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
478 | } |
479 | ||
3d762a0f GR |
480 | static int dsa_slave_get_regs_len(struct net_device *dev) |
481 | { | |
d945097b VD |
482 | struct dsa_port *dp = dsa_slave_to_port(dev); |
483 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 484 | |
9d490b4e | 485 | if (ds->ops->get_regs_len) |
d945097b | 486 | return ds->ops->get_regs_len(ds, dp->index); |
3d762a0f GR |
487 | |
488 | return -EOPNOTSUPP; | |
489 | } | |
490 | ||
491 | static void | |
492 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
493 | { | |
d945097b VD |
494 | struct dsa_port *dp = dsa_slave_to_port(dev); |
495 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 496 | |
9d490b4e | 497 | if (ds->ops->get_regs) |
d945097b | 498 | ds->ops->get_regs(ds, dp->index, regs, _p); |
3d762a0f GR |
499 | } |
500 | ||
6793abb4 GR |
501 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
502 | { | |
d945097b VD |
503 | struct dsa_port *dp = dsa_slave_to_port(dev); |
504 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 505 | |
0e576044 | 506 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 507 | return ds->cd->eeprom_len; |
6793abb4 | 508 | |
9d490b4e VD |
509 | if (ds->ops->get_eeprom_len) |
510 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
511 | |
512 | return 0; | |
513 | } | |
514 | ||
515 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
516 | struct ethtool_eeprom *eeprom, u8 *data) | |
517 | { | |
d945097b VD |
518 | struct dsa_port *dp = dsa_slave_to_port(dev); |
519 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 520 | |
9d490b4e VD |
521 | if (ds->ops->get_eeprom) |
522 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
523 | |
524 | return -EOPNOTSUPP; | |
525 | } | |
526 | ||
527 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
528 | struct ethtool_eeprom *eeprom, u8 *data) | |
529 | { | |
d945097b VD |
530 | struct dsa_port *dp = dsa_slave_to_port(dev); |
531 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 532 | |
9d490b4e VD |
533 | if (ds->ops->set_eeprom) |
534 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
535 | |
536 | return -EOPNOTSUPP; | |
537 | } | |
538 | ||
91da11f8 LB |
539 | static void dsa_slave_get_strings(struct net_device *dev, |
540 | uint32_t stringset, uint8_t *data) | |
541 | { | |
d945097b VD |
542 | struct dsa_port *dp = dsa_slave_to_port(dev); |
543 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
544 | |
545 | if (stringset == ETH_SS_STATS) { | |
546 | int len = ETH_GSTRING_LEN; | |
547 | ||
548 | strncpy(data, "tx_packets", len); | |
549 | strncpy(data + len, "tx_bytes", len); | |
550 | strncpy(data + 2 * len, "rx_packets", len); | |
551 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 552 | if (ds->ops->get_strings) |
89f09048 FF |
553 | ds->ops->get_strings(ds, dp->index, stringset, |
554 | data + 4 * len); | |
91da11f8 LB |
555 | } |
556 | } | |
557 | ||
558 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
559 | struct ethtool_stats *stats, | |
560 | uint64_t *data) | |
561 | { | |
d945097b | 562 | struct dsa_port *dp = dsa_slave_to_port(dev); |
91da11f8 | 563 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 564 | struct dsa_switch *ds = dp->ds; |
5f6b4e14 | 565 | struct pcpu_sw_netstats *s; |
f613ed66 | 566 | unsigned int start; |
5f6b4e14 FF |
567 | int i; |
568 | ||
569 | for_each_possible_cpu(i) { | |
570 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
571 | ||
572 | s = per_cpu_ptr(p->stats64, i); | |
573 | do { | |
574 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
575 | tx_packets = s->tx_packets; | |
576 | tx_bytes = s->tx_bytes; | |
577 | rx_packets = s->rx_packets; | |
578 | rx_bytes = s->rx_bytes; | |
579 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
580 | data[0] += tx_packets; | |
581 | data[1] += tx_bytes; | |
582 | data[2] += rx_packets; | |
583 | data[3] += rx_bytes; | |
584 | } | |
9d490b4e | 585 | if (ds->ops->get_ethtool_stats) |
d945097b | 586 | ds->ops->get_ethtool_stats(ds, dp->index, data + 4); |
91da11f8 LB |
587 | } |
588 | ||
589 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
590 | { | |
d945097b VD |
591 | struct dsa_port *dp = dsa_slave_to_port(dev); |
592 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
593 | |
594 | if (sset == ETH_SS_STATS) { | |
595 | int count; | |
596 | ||
597 | count = 4; | |
9d490b4e | 598 | if (ds->ops->get_sset_count) |
89f09048 | 599 | count += ds->ops->get_sset_count(ds, dp->index, sset); |
91da11f8 LB |
600 | |
601 | return count; | |
602 | } | |
603 | ||
604 | return -EOPNOTSUPP; | |
605 | } | |
606 | ||
19e57c4e FF |
607 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
608 | { | |
d945097b VD |
609 | struct dsa_port *dp = dsa_slave_to_port(dev); |
610 | struct dsa_switch *ds = dp->ds; | |
19e57c4e | 611 | |
9d490b4e | 612 | if (ds->ops->get_wol) |
d945097b | 613 | ds->ops->get_wol(ds, dp->index, w); |
19e57c4e FF |
614 | } |
615 | ||
616 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
617 | { | |
d945097b VD |
618 | struct dsa_port *dp = dsa_slave_to_port(dev); |
619 | struct dsa_switch *ds = dp->ds; | |
19e57c4e FF |
620 | int ret = -EOPNOTSUPP; |
621 | ||
9d490b4e | 622 | if (ds->ops->set_wol) |
d945097b | 623 | ret = ds->ops->set_wol(ds, dp->index, w); |
19e57c4e FF |
624 | |
625 | return ret; | |
626 | } | |
627 | ||
7905288f FF |
628 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
629 | { | |
d945097b VD |
630 | struct dsa_port *dp = dsa_slave_to_port(dev); |
631 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
632 | int ret; |
633 | ||
7b9cc738 | 634 | /* Port's PHY and MAC both need to be EEE capable */ |
0115dcd1 | 635 | if (!dev->phydev) |
7b9cc738 VD |
636 | return -ENODEV; |
637 | ||
08f50061 | 638 | if (!ds->ops->set_mac_eee) |
7905288f FF |
639 | return -EOPNOTSUPP; |
640 | ||
d945097b | 641 | ret = ds->ops->set_mac_eee(ds, dp->index, e); |
7905288f FF |
642 | if (ret) |
643 | return ret; | |
644 | ||
c48f7eb3 | 645 | if (e->eee_enabled) { |
0115dcd1 | 646 | ret = phy_init_eee(dev->phydev, 0); |
c48f7eb3 VD |
647 | if (ret) |
648 | return ret; | |
649 | } | |
650 | ||
0115dcd1 | 651 | return phy_ethtool_set_eee(dev->phydev, e); |
7905288f FF |
652 | } |
653 | ||
654 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
655 | { | |
d945097b VD |
656 | struct dsa_port *dp = dsa_slave_to_port(dev); |
657 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
658 | int ret; |
659 | ||
7b9cc738 | 660 | /* Port's PHY and MAC both need to be EEE capable */ |
0115dcd1 | 661 | if (!dev->phydev) |
7b9cc738 VD |
662 | return -ENODEV; |
663 | ||
08f50061 | 664 | if (!ds->ops->get_mac_eee) |
7905288f FF |
665 | return -EOPNOTSUPP; |
666 | ||
d945097b | 667 | ret = ds->ops->get_mac_eee(ds, dp->index, e); |
7905288f FF |
668 | if (ret) |
669 | return ret; | |
670 | ||
0115dcd1 | 671 | return phy_ethtool_get_eee(dev->phydev, e); |
7905288f FF |
672 | } |
673 | ||
04ff53f9 FF |
674 | #ifdef CONFIG_NET_POLL_CONTROLLER |
675 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
676 | struct netpoll_info *ni) | |
677 | { | |
d0006b00 | 678 | struct net_device *master = dsa_slave_to_master(dev); |
04ff53f9 | 679 | struct dsa_slave_priv *p = netdev_priv(dev); |
04ff53f9 FF |
680 | struct netpoll *netpoll; |
681 | int err = 0; | |
682 | ||
683 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
684 | if (!netpoll) | |
685 | return -ENOMEM; | |
686 | ||
687 | err = __netpoll_setup(netpoll, master); | |
688 | if (err) { | |
689 | kfree(netpoll); | |
690 | goto out; | |
691 | } | |
692 | ||
693 | p->netpoll = netpoll; | |
694 | out: | |
695 | return err; | |
696 | } | |
697 | ||
698 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
699 | { | |
700 | struct dsa_slave_priv *p = netdev_priv(dev); | |
701 | struct netpoll *netpoll = p->netpoll; | |
702 | ||
703 | if (!netpoll) | |
704 | return; | |
705 | ||
706 | p->netpoll = NULL; | |
707 | ||
708 | __netpoll_free_async(netpoll); | |
709 | } | |
710 | ||
711 | static void dsa_slave_poll_controller(struct net_device *dev) | |
712 | { | |
713 | } | |
714 | #endif | |
715 | ||
44bb765c FF |
716 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
717 | char *name, size_t len) | |
718 | { | |
d945097b | 719 | struct dsa_port *dp = dsa_slave_to_port(dev); |
44bb765c | 720 | |
d945097b | 721 | if (snprintf(name, len, "p%d", dp->index) >= len) |
44bb765c | 722 | return -EINVAL; |
3a543ef4 FF |
723 | |
724 | return 0; | |
725 | } | |
726 | ||
f50f2127 | 727 | static struct dsa_mall_tc_entry * |
4fa7b718 | 728 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 729 | { |
4fa7b718 | 730 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
731 | struct dsa_mall_tc_entry *mall_tc_entry; |
732 | ||
733 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
734 | if (mall_tc_entry->cookie == cookie) | |
735 | return mall_tc_entry; | |
736 | ||
737 | return NULL; | |
738 | } | |
739 | ||
740 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
741 | struct tc_cls_matchall_offload *cls, |
742 | bool ingress) | |
743 | { | |
d945097b | 744 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 FF |
745 | struct dsa_slave_priv *p = netdev_priv(dev); |
746 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 747 | __be16 protocol = cls->common.protocol; |
d945097b | 748 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
749 | struct net_device *to_dev; |
750 | const struct tc_action *a; | |
d945097b | 751 | struct dsa_port *to_dp; |
f50f2127 FF |
752 | int err = -EOPNOTSUPP; |
753 | LIST_HEAD(actions); | |
f50f2127 FF |
754 | |
755 | if (!ds->ops->port_mirror_add) | |
756 | return err; | |
757 | ||
3bcc0cec | 758 | if (!tcf_exts_has_one_action(cls->exts)) |
f50f2127 FF |
759 | return err; |
760 | ||
761 | tcf_exts_to_list(cls->exts, &actions); | |
762 | a = list_first_entry(&actions, struct tc_action, list); | |
763 | ||
764 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
765 | struct dsa_mall_mirror_tc_entry *mirror; | |
766 | ||
9f8a739e | 767 | to_dev = tcf_mirred_dev(a); |
f50f2127 FF |
768 | if (!to_dev) |
769 | return -EINVAL; | |
770 | ||
771 | if (!dsa_slave_dev_check(to_dev)) | |
772 | return -EOPNOTSUPP; | |
773 | ||
774 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
775 | if (!mall_tc_entry) | |
776 | return -ENOMEM; | |
777 | ||
778 | mall_tc_entry->cookie = cls->cookie; | |
779 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
780 | mirror = &mall_tc_entry->mirror; | |
781 | ||
d945097b | 782 | to_dp = dsa_slave_to_port(to_dev); |
f50f2127 | 783 | |
d945097b | 784 | mirror->to_local_port = to_dp->index; |
f50f2127 FF |
785 | mirror->ingress = ingress; |
786 | ||
d945097b | 787 | err = ds->ops->port_mirror_add(ds, dp->index, mirror, ingress); |
f50f2127 FF |
788 | if (err) { |
789 | kfree(mall_tc_entry); | |
790 | return err; | |
791 | } | |
792 | ||
793 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
794 | } | |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
799 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
800 | struct tc_cls_matchall_offload *cls) | |
801 | { | |
d945097b | 802 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 | 803 | struct dsa_mall_tc_entry *mall_tc_entry; |
d945097b | 804 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
805 | |
806 | if (!ds->ops->port_mirror_del) | |
807 | return; | |
808 | ||
4fa7b718 | 809 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
810 | if (!mall_tc_entry) |
811 | return; | |
812 | ||
813 | list_del(&mall_tc_entry->list); | |
814 | ||
815 | switch (mall_tc_entry->type) { | |
816 | case DSA_PORT_MALL_MIRROR: | |
d945097b | 817 | ds->ops->port_mirror_del(ds, dp->index, &mall_tc_entry->mirror); |
f50f2127 FF |
818 | break; |
819 | default: | |
820 | WARN_ON(1); | |
821 | } | |
822 | ||
823 | kfree(mall_tc_entry); | |
824 | } | |
825 | ||
3fbae382 | 826 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
6b3eb752 JP |
827 | struct tc_cls_matchall_offload *cls, |
828 | bool ingress) | |
f50f2127 | 829 | { |
5fd9fc4e | 830 | if (cls->common.chain_index) |
a5fcf8a6 | 831 | return -EOPNOTSUPP; |
f50f2127 | 832 | |
3fbae382 JP |
833 | switch (cls->command) { |
834 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 835 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
836 | case TC_CLSMATCHALL_DESTROY: |
837 | dsa_slave_del_cls_matchall(dev, cls); | |
838 | return 0; | |
839 | default: | |
840 | return -EOPNOTSUPP; | |
841 | } | |
842 | } | |
843 | ||
6b3eb752 JP |
844 | static int dsa_slave_setup_tc_block_cb(enum tc_setup_type type, void *type_data, |
845 | void *cb_priv, bool ingress) | |
846 | { | |
847 | struct net_device *dev = cb_priv; | |
848 | ||
44ae12a7 JP |
849 | if (!tc_can_offload(dev)) |
850 | return -EOPNOTSUPP; | |
851 | ||
6b3eb752 JP |
852 | switch (type) { |
853 | case TC_SETUP_CLSMATCHALL: | |
854 | return dsa_slave_setup_tc_cls_matchall(dev, type_data, ingress); | |
855 | default: | |
856 | return -EOPNOTSUPP; | |
857 | } | |
858 | } | |
859 | ||
860 | static int dsa_slave_setup_tc_block_cb_ig(enum tc_setup_type type, | |
861 | void *type_data, void *cb_priv) | |
862 | { | |
863 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, true); | |
864 | } | |
865 | ||
866 | static int dsa_slave_setup_tc_block_cb_eg(enum tc_setup_type type, | |
867 | void *type_data, void *cb_priv) | |
868 | { | |
869 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, false); | |
870 | } | |
871 | ||
872 | static int dsa_slave_setup_tc_block(struct net_device *dev, | |
873 | struct tc_block_offload *f) | |
874 | { | |
875 | tc_setup_cb_t *cb; | |
876 | ||
877 | if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) | |
878 | cb = dsa_slave_setup_tc_block_cb_ig; | |
879 | else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) | |
880 | cb = dsa_slave_setup_tc_block_cb_eg; | |
881 | else | |
882 | return -EOPNOTSUPP; | |
883 | ||
884 | switch (f->command) { | |
885 | case TC_BLOCK_BIND: | |
886 | return tcf_block_cb_register(f->block, cb, dev, dev); | |
887 | case TC_BLOCK_UNBIND: | |
888 | tcf_block_cb_unregister(f->block, cb, dev); | |
889 | return 0; | |
890 | default: | |
891 | return -EOPNOTSUPP; | |
892 | } | |
893 | } | |
894 | ||
3fbae382 | 895 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, |
de4784ca | 896 | void *type_data) |
3fbae382 | 897 | { |
2572ac53 | 898 | switch (type) { |
6b3eb752 JP |
899 | case TC_SETUP_BLOCK: |
900 | return dsa_slave_setup_tc_block(dev, type_data); | |
f50f2127 | 901 | default: |
a5fcf8a6 | 902 | return -EOPNOTSUPP; |
f50f2127 | 903 | } |
f50f2127 FF |
904 | } |
905 | ||
f613ed66 FF |
906 | static void dsa_slave_get_stats64(struct net_device *dev, |
907 | struct rtnl_link_stats64 *stats) | |
908 | { | |
909 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 910 | struct pcpu_sw_netstats *s; |
f613ed66 | 911 | unsigned int start; |
5f6b4e14 | 912 | int i; |
f613ed66 FF |
913 | |
914 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
915 | for_each_possible_cpu(i) { |
916 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
917 | ||
918 | s = per_cpu_ptr(p->stats64, i); | |
919 | do { | |
920 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
921 | tx_packets = s->tx_packets; | |
922 | tx_bytes = s->tx_bytes; | |
923 | rx_packets = s->rx_packets; | |
924 | rx_bytes = s->rx_bytes; | |
925 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
926 | ||
927 | stats->tx_packets += tx_packets; | |
928 | stats->tx_bytes += tx_bytes; | |
929 | stats->rx_packets += rx_packets; | |
930 | stats->rx_bytes += rx_bytes; | |
931 | } | |
f613ed66 FF |
932 | } |
933 | ||
bf9f2648 FF |
934 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
935 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
936 | { | |
d945097b VD |
937 | struct dsa_port *dp = dsa_slave_to_port(dev); |
938 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
939 | |
940 | if (!ds->ops->get_rxnfc) | |
941 | return -EOPNOTSUPP; | |
942 | ||
d945097b | 943 | return ds->ops->get_rxnfc(ds, dp->index, nfc, rule_locs); |
bf9f2648 FF |
944 | } |
945 | ||
946 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
947 | struct ethtool_rxnfc *nfc) | |
948 | { | |
d945097b VD |
949 | struct dsa_port *dp = dsa_slave_to_port(dev); |
950 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
951 | |
952 | if (!ds->ops->set_rxnfc) | |
953 | return -EOPNOTSUPP; | |
954 | ||
d945097b | 955 | return ds->ops->set_rxnfc(ds, dp->index, nfc); |
bf9f2648 FF |
956 | } |
957 | ||
0336369d BS |
958 | static int dsa_slave_get_ts_info(struct net_device *dev, |
959 | struct ethtool_ts_info *ts) | |
960 | { | |
961 | struct dsa_slave_priv *p = netdev_priv(dev); | |
962 | struct dsa_switch *ds = p->dp->ds; | |
963 | ||
964 | if (!ds->ops->get_ts_info) | |
965 | return -EOPNOTSUPP; | |
966 | ||
967 | return ds->ops->get_ts_info(ds, p->dp->index, ts); | |
968 | } | |
969 | ||
91da11f8 | 970 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 971 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
972 | .get_regs_len = dsa_slave_get_regs_len, |
973 | .get_regs = dsa_slave_get_regs, | |
69b2c162 | 974 | .nway_reset = phy_ethtool_nway_reset, |
c4aef9fc | 975 | .get_link = ethtool_op_get_link, |
6793abb4 GR |
976 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
977 | .get_eeprom = dsa_slave_get_eeprom, | |
978 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
979 | .get_strings = dsa_slave_get_strings, |
980 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
981 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
982 | .set_wol = dsa_slave_set_wol, |
983 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
984 | .set_eee = dsa_slave_set_eee, |
985 | .get_eee = dsa_slave_get_eee, | |
771df31a | 986 | .get_link_ksettings = phy_ethtool_get_link_ksettings, |
aa62a8ca | 987 | .set_link_ksettings = phy_ethtool_set_link_ksettings, |
bf9f2648 FF |
988 | .get_rxnfc = dsa_slave_get_rxnfc, |
989 | .set_rxnfc = dsa_slave_set_rxnfc, | |
0336369d | 990 | .get_ts_info = dsa_slave_get_ts_info, |
91da11f8 LB |
991 | }; |
992 | ||
2a93c1a3 FF |
993 | /* legacy way, bypassing the bridge *****************************************/ |
994 | int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
995 | struct net_device *dev, | |
996 | const unsigned char *addr, u16 vid, | |
997 | u16 flags) | |
998 | { | |
999 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1000 | ||
1001 | return dsa_port_fdb_add(dp, addr, vid); | |
1002 | } | |
1003 | ||
1004 | int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
1005 | struct net_device *dev, | |
1006 | const unsigned char *addr, u16 vid) | |
1007 | { | |
1008 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1009 | ||
1010 | return dsa_port_fdb_del(dp, addr, vid); | |
1011 | } | |
1012 | ||
3e8a72d1 | 1013 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1014 | .ndo_open = dsa_slave_open, |
1015 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1016 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1017 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1018 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1019 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
1020 | .ndo_fdb_add = dsa_legacy_fdb_add, |
1021 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 1022 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 1023 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1024 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1025 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1026 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1027 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1028 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1029 | #endif | |
44bb765c | 1030 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1031 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 1032 | .ndo_get_stats64 = dsa_slave_get_stats64, |
98237d43 SF |
1033 | }; |
1034 | ||
9d47c0a2 | 1035 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 1036 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 1037 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1038 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1039 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
d442ad4a | 1040 | }; |
91da11f8 | 1041 | |
f37db85d FF |
1042 | static struct device_type dsa_type = { |
1043 | .name = "dsa", | |
1044 | }; | |
1045 | ||
0d8bcdd3 FF |
1046 | static void dsa_slave_adjust_link(struct net_device *dev) |
1047 | { | |
d945097b | 1048 | struct dsa_port *dp = dsa_slave_to_port(dev); |
0d8bcdd3 | 1049 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 1050 | struct dsa_switch *ds = dp->ds; |
0d8bcdd3 FF |
1051 | unsigned int status_changed = 0; |
1052 | ||
0115dcd1 | 1053 | if (p->old_link != dev->phydev->link) { |
0d8bcdd3 | 1054 | status_changed = 1; |
0115dcd1 | 1055 | p->old_link = dev->phydev->link; |
0d8bcdd3 FF |
1056 | } |
1057 | ||
0115dcd1 | 1058 | if (p->old_duplex != dev->phydev->duplex) { |
0d8bcdd3 | 1059 | status_changed = 1; |
0115dcd1 | 1060 | p->old_duplex = dev->phydev->duplex; |
0d8bcdd3 FF |
1061 | } |
1062 | ||
0115dcd1 | 1063 | if (p->old_pause != dev->phydev->pause) { |
0d8bcdd3 | 1064 | status_changed = 1; |
0115dcd1 | 1065 | p->old_pause = dev->phydev->pause; |
0d8bcdd3 FF |
1066 | } |
1067 | ||
9d490b4e | 1068 | if (ds->ops->adjust_link && status_changed) |
d945097b | 1069 | ds->ops->adjust_link(ds, dp->index, dev->phydev); |
ec9436ba | 1070 | |
0d8bcdd3 | 1071 | if (status_changed) |
0115dcd1 | 1072 | phy_print_status(dev->phydev); |
0d8bcdd3 FF |
1073 | } |
1074 | ||
ce31b31c FF |
1075 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1076 | struct fixed_phy_status *status) | |
1077 | { | |
b71be352 | 1078 | struct dsa_switch *ds; |
d945097b | 1079 | struct dsa_port *dp; |
b71be352 AL |
1080 | |
1081 | if (dev) { | |
d945097b VD |
1082 | dp = dsa_slave_to_port(dev); |
1083 | ds = dp->ds; | |
9d490b4e | 1084 | if (ds->ops->fixed_link_update) |
d945097b | 1085 | ds->ops->fixed_link_update(ds, dp->index, status); |
b71be352 | 1086 | } |
ce31b31c FF |
1087 | |
1088 | return 0; | |
1089 | } | |
1090 | ||
91da11f8 | 1091 | /* slave device setup *******************************************************/ |
4fa7b718 | 1092 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 1093 | { |
d945097b | 1094 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
4fa7b718 | 1095 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
d945097b | 1096 | struct dsa_switch *ds = dp->ds; |
c305c165 | 1097 | |
0115dcd1 VD |
1098 | slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); |
1099 | if (!slave_dev->phydev) { | |
d25b8e74 | 1100 | netdev_err(slave_dev, "no phy at %d\n", addr); |
c305c165 | 1101 | return -ENODEV; |
d25b8e74 | 1102 | } |
c305c165 FF |
1103 | |
1104 | /* Use already configured phy mode */ | |
211c504a | 1105 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
0115dcd1 VD |
1106 | p->phy_interface = slave_dev->phydev->interface; |
1107 | ||
1108 | return phy_connect_direct(slave_dev, slave_dev->phydev, | |
1109 | dsa_slave_adjust_link, p->phy_interface); | |
c305c165 FF |
1110 | } |
1111 | ||
11d8f3dd FF |
1112 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up) |
1113 | { | |
1114 | } | |
1115 | EXPORT_SYMBOL_GPL(dsa_port_phylink_mac_change); | |
1116 | ||
4fa7b718 | 1117 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 1118 | { |
d945097b | 1119 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
4fa7b718 | 1120 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
d945097b VD |
1121 | struct device_node *port_dn = dp->dn; |
1122 | struct dsa_switch *ds = dp->ds; | |
1123 | struct device_node *phy_dn; | |
ce31b31c | 1124 | bool phy_is_fixed = false; |
6819563e | 1125 | u32 phy_flags = 0; |
19334920 | 1126 | int mode, ret; |
0d8bcdd3 | 1127 | |
19334920 GR |
1128 | mode = of_get_phy_mode(port_dn); |
1129 | if (mode < 0) | |
1130 | mode = PHY_INTERFACE_MODE_NA; | |
1131 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1132 | |
1133 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1134 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1135 | /* In the case of a fixed PHY, the DT node associated |
1136 | * to the fixed PHY is the Port DT node | |
1137 | */ | |
1138 | ret = of_phy_register_fixed_link(port_dn); | |
1139 | if (ret) { | |
d25b8e74 | 1140 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1141 | return ret; |
0d8bcdd3 | 1142 | } |
ce31b31c | 1143 | phy_is_fixed = true; |
0d8f3c67 | 1144 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1145 | } |
1146 | ||
9d490b4e | 1147 | if (ds->ops->get_phy_flags) |
d945097b | 1148 | phy_flags = ds->ops->get_phy_flags(ds, dp->index); |
6819563e | 1149 | |
cd28a1a9 | 1150 | if (phy_dn) { |
399ba77a FF |
1151 | slave_dev->phydev = of_phy_connect(slave_dev, phy_dn, |
1152 | dsa_slave_adjust_link, | |
1153 | phy_flags, | |
1154 | p->phy_interface); | |
0d8f3c67 | 1155 | of_node_put(phy_dn); |
cd28a1a9 | 1156 | } |
0d8bcdd3 | 1157 | |
0115dcd1 VD |
1158 | if (slave_dev->phydev && phy_is_fixed) |
1159 | fixed_phy_set_link_update(slave_dev->phydev, | |
1160 | dsa_slave_fixed_link_update); | |
ce31b31c | 1161 | |
0d8bcdd3 FF |
1162 | /* We could not connect to a designated PHY, so use the switch internal |
1163 | * MDIO bus instead | |
1164 | */ | |
0115dcd1 | 1165 | if (!slave_dev->phydev) { |
d945097b | 1166 | ret = dsa_slave_phy_connect(slave_dev, dp->index); |
d25b8e74 | 1167 | if (ret) { |
afdcf151 | 1168 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
d945097b | 1169 | dp->index, ret); |
881eadab JH |
1170 | if (phy_is_fixed) |
1171 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1172 | return ret; |
d25b8e74 | 1173 | } |
b31f65fb | 1174 | } |
9697f1cd | 1175 | |
0115dcd1 | 1176 | phy_attached_info(slave_dev->phydev); |
2220943a | 1177 | |
9697f1cd | 1178 | return 0; |
0d8bcdd3 FF |
1179 | } |
1180 | ||
448b4482 AL |
1181 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1182 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1183 | struct netdev_queue *txq, | |
1184 | void *_unused) | |
1185 | { | |
1186 | lockdep_set_class(&txq->_xmit_lock, | |
1187 | &dsa_slave_netdev_xmit_lock_key); | |
1188 | } | |
1189 | ||
24462549 FF |
1190 | int dsa_slave_suspend(struct net_device *slave_dev) |
1191 | { | |
1192 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1193 | ||
f154be24 FF |
1194 | netif_device_detach(slave_dev); |
1195 | ||
0115dcd1 VD |
1196 | if (slave_dev->phydev) { |
1197 | phy_stop(slave_dev->phydev); | |
24462549 FF |
1198 | p->old_pause = -1; |
1199 | p->old_link = -1; | |
1200 | p->old_duplex = -1; | |
0115dcd1 | 1201 | phy_suspend(slave_dev->phydev); |
24462549 FF |
1202 | } |
1203 | ||
1204 | return 0; | |
1205 | } | |
1206 | ||
1207 | int dsa_slave_resume(struct net_device *slave_dev) | |
1208 | { | |
24462549 FF |
1209 | netif_device_attach(slave_dev); |
1210 | ||
0115dcd1 VD |
1211 | if (slave_dev->phydev) { |
1212 | phy_resume(slave_dev->phydev); | |
1213 | phy_start(slave_dev->phydev); | |
24462549 FF |
1214 | } |
1215 | ||
1216 | return 0; | |
1217 | } | |
1218 | ||
6158eaa7 VD |
1219 | static void dsa_slave_notify(struct net_device *dev, unsigned long val) |
1220 | { | |
d0006b00 | 1221 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 1222 | struct dsa_port *dp = dsa_slave_to_port(dev); |
6158eaa7 VD |
1223 | struct dsa_notifier_register_info rinfo = { |
1224 | .switch_number = dp->ds->index, | |
1225 | .port_number = dp->index, | |
1226 | .master = master, | |
1227 | .info.dev = dev, | |
1228 | }; | |
1229 | ||
1230 | call_dsa_notifiers(val, dev, &rinfo.info); | |
1231 | } | |
1232 | ||
951259aa | 1233 | int dsa_slave_create(struct dsa_port *port) |
91da11f8 | 1234 | { |
24a9332a | 1235 | const struct dsa_port *cpu_dp = port->cpu_dp; |
f8b8b1cd | 1236 | struct net_device *master = cpu_dp->master; |
4cfbf09c | 1237 | struct dsa_switch *ds = port->ds; |
951259aa | 1238 | const char *name = port->name; |
91da11f8 LB |
1239 | struct net_device *slave_dev; |
1240 | struct dsa_slave_priv *p; | |
1241 | int ret; | |
1242 | ||
55199df6 FF |
1243 | if (!ds->num_tx_queues) |
1244 | ds->num_tx_queues = 1; | |
1245 | ||
1246 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1247 | NET_NAME_UNKNOWN, ether_setup, | |
1248 | ds->num_tx_queues, 1); | |
91da11f8 | 1249 | if (slave_dev == NULL) |
d87d6f44 | 1250 | return -ENOMEM; |
91da11f8 | 1251 | |
f50f2127 FF |
1252 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1253 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1254 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1255 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1256 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1257 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1258 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1259 | slave_dev->min_mtu = 0; |
1260 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1261 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1262 | |
448b4482 AL |
1263 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1264 | NULL); | |
1265 | ||
4cfbf09c VD |
1266 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1267 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1268 | slave_dev->vlan_features = master->vlan_features; |
1269 | ||
1270 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1271 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1272 | if (!p->stats64) { | |
1273 | free_netdev(slave_dev); | |
1274 | return -ENOMEM; | |
1275 | } | |
4cfbf09c | 1276 | p->dp = port; |
f50f2127 | 1277 | INIT_LIST_HEAD(&p->mall_tc_list); |
15240248 | 1278 | p->xmit = cpu_dp->tag_ops->xmit; |
d442ad4a | 1279 | |
0d8bcdd3 FF |
1280 | p->old_pause = -1; |
1281 | p->old_link = -1; | |
1282 | p->old_duplex = -1; | |
1283 | ||
f8b8b1cd | 1284 | port->slave = slave_dev; |
91da11f8 LB |
1285 | |
1286 | netif_carrier_off(slave_dev); | |
1287 | ||
4fa7b718 | 1288 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1289 | if (ret) { |
1290 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
e804441c FF |
1291 | goto out_free; |
1292 | } | |
1293 | ||
6158eaa7 | 1294 | dsa_slave_notify(slave_dev, DSA_PORT_REGISTER); |
60724d4b | 1295 | |
e804441c FF |
1296 | ret = register_netdev(slave_dev); |
1297 | if (ret) { | |
1298 | netdev_err(master, "error %d registering interface %s\n", | |
1299 | ret, slave_dev->name); | |
1300 | goto out_phy; | |
0071f56e AL |
1301 | } |
1302 | ||
d87d6f44 | 1303 | return 0; |
e804441c FF |
1304 | |
1305 | out_phy: | |
53954cf8 | 1306 | phy_disconnect(slave_dev->phydev); |
d945097b VD |
1307 | if (of_phy_is_fixed_link(port->dn)) |
1308 | of_phy_deregister_fixed_link(port->dn); | |
e804441c FF |
1309 | out_free: |
1310 | free_percpu(p->stats64); | |
1311 | free_netdev(slave_dev); | |
f8b8b1cd | 1312 | port->slave = NULL; |
e804441c | 1313 | return ret; |
91da11f8 | 1314 | } |
b73adef6 | 1315 | |
cda5c15b NA |
1316 | void dsa_slave_destroy(struct net_device *slave_dev) |
1317 | { | |
d945097b | 1318 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
cda5c15b | 1319 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
d945097b | 1320 | struct device_node *port_dn = dp->dn; |
cda5c15b NA |
1321 | |
1322 | netif_carrier_off(slave_dev); | |
0115dcd1 VD |
1323 | if (slave_dev->phydev) { |
1324 | phy_disconnect(slave_dev->phydev); | |
881eadab JH |
1325 | |
1326 | if (of_phy_is_fixed_link(port_dn)) | |
1327 | of_phy_deregister_fixed_link(port_dn); | |
1328 | } | |
6158eaa7 | 1329 | dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER); |
cda5c15b | 1330 | unregister_netdev(slave_dev); |
5f6b4e14 | 1331 | free_percpu(p->stats64); |
cda5c15b NA |
1332 | free_netdev(slave_dev); |
1333 | } | |
1334 | ||
b73adef6 FF |
1335 | static bool dsa_slave_dev_check(struct net_device *dev) |
1336 | { | |
1337 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1338 | } | |
1339 | ||
8e92ab3a VD |
1340 | static int dsa_slave_changeupper(struct net_device *dev, |
1341 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1342 | { |
d945097b | 1343 | struct dsa_port *dp = dsa_slave_to_port(dev); |
8e92ab3a | 1344 | int err = NOTIFY_DONE; |
b73adef6 | 1345 | |
8e92ab3a VD |
1346 | if (netif_is_bridge_master(info->upper_dev)) { |
1347 | if (info->linking) { | |
17d7802b | 1348 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1349 | err = notifier_from_errno(err); |
1350 | } else { | |
17d7802b | 1351 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1352 | err = NOTIFY_OK; |
6debb68a | 1353 | } |
6debb68a | 1354 | } |
b73adef6 | 1355 | |
8e92ab3a | 1356 | return err; |
6debb68a | 1357 | } |
b73adef6 | 1358 | |
88e4f0ca VD |
1359 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1360 | unsigned long event, void *ptr) | |
6debb68a VD |
1361 | { |
1362 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1363 | ||
53bade8a | 1364 | if (!dsa_slave_dev_check(dev)) |
8e92ab3a VD |
1365 | return NOTIFY_DONE; |
1366 | ||
1367 | if (event == NETDEV_CHANGEUPPER) | |
1368 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1369 | |
b73adef6 FF |
1370 | return NOTIFY_DONE; |
1371 | } | |
88e4f0ca | 1372 | |
c9eb3e0f AS |
1373 | struct dsa_switchdev_event_work { |
1374 | struct work_struct work; | |
1375 | struct switchdev_notifier_fdb_info fdb_info; | |
1376 | struct net_device *dev; | |
1377 | unsigned long event; | |
1378 | }; | |
1379 | ||
1380 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1381 | { | |
1382 | struct dsa_switchdev_event_work *switchdev_work = | |
1383 | container_of(work, struct dsa_switchdev_event_work, work); | |
1384 | struct net_device *dev = switchdev_work->dev; | |
1385 | struct switchdev_notifier_fdb_info *fdb_info; | |
d945097b | 1386 | struct dsa_port *dp = dsa_slave_to_port(dev); |
c9eb3e0f AS |
1387 | int err; |
1388 | ||
1389 | rtnl_lock(); | |
1390 | switch (switchdev_work->event) { | |
1391 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1392 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1393 | if (!fdb_info->added_by_user) |
1394 | break; | |
1395 | ||
d945097b | 1396 | err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1397 | if (err) { |
1398 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1399 | break; | |
1400 | } | |
1401 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, | |
1402 | &fdb_info->info); | |
1403 | break; | |
1404 | ||
1405 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1406 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1407 | if (!fdb_info->added_by_user) |
1408 | break; | |
1409 | ||
d945097b | 1410 | err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1411 | if (err) { |
1412 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1413 | dev_close(dev); | |
1414 | } | |
1415 | break; | |
1416 | } | |
1417 | rtnl_unlock(); | |
1418 | ||
1419 | kfree(switchdev_work->fdb_info.addr); | |
1420 | kfree(switchdev_work); | |
1421 | dev_put(dev); | |
1422 | } | |
1423 | ||
1424 | static int | |
1425 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1426 | switchdev_work, | |
1427 | const struct switchdev_notifier_fdb_info * | |
1428 | fdb_info) | |
1429 | { | |
1430 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1431 | sizeof(switchdev_work->fdb_info)); | |
1432 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1433 | if (!switchdev_work->fdb_info.addr) | |
1434 | return -ENOMEM; | |
1435 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1436 | fdb_info->addr); | |
1437 | return 0; | |
1438 | } | |
1439 | ||
1440 | /* Called under rcu_read_lock() */ | |
1441 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1442 | unsigned long event, void *ptr) | |
1443 | { | |
1444 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1445 | struct dsa_switchdev_event_work *switchdev_work; | |
1446 | ||
1447 | if (!dsa_slave_dev_check(dev)) | |
1448 | return NOTIFY_DONE; | |
1449 | ||
1450 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); | |
1451 | if (!switchdev_work) | |
1452 | return NOTIFY_BAD; | |
1453 | ||
1454 | INIT_WORK(&switchdev_work->work, | |
1455 | dsa_slave_switchdev_event_work); | |
1456 | switchdev_work->dev = dev; | |
1457 | switchdev_work->event = event; | |
1458 | ||
1459 | switch (event) { | |
1460 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1461 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
a37fb855 | 1462 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, ptr)) |
c9eb3e0f AS |
1463 | goto err_fdb_work_init; |
1464 | dev_hold(dev); | |
1465 | break; | |
1466 | default: | |
1467 | kfree(switchdev_work); | |
1468 | return NOTIFY_DONE; | |
1469 | } | |
1470 | ||
1471 | dsa_schedule_work(&switchdev_work->work); | |
1472 | return NOTIFY_OK; | |
1473 | ||
1474 | err_fdb_work_init: | |
1475 | kfree(switchdev_work); | |
1476 | return NOTIFY_BAD; | |
1477 | } | |
1478 | ||
88e4f0ca | 1479 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1480 | .notifier_call = dsa_slave_netdevice_event, |
1481 | }; | |
1482 | ||
1483 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1484 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1485 | }; |
1486 | ||
1487 | int dsa_slave_register_notifier(void) | |
1488 | { | |
c9eb3e0f AS |
1489 | int err; |
1490 | ||
1491 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1492 | if (err) | |
1493 | return err; | |
1494 | ||
1495 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1496 | if (err) | |
1497 | goto err_switchdev_nb; | |
1498 | ||
1499 | return 0; | |
1500 | ||
1501 | err_switchdev_nb: | |
1502 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1503 | return err; | |
88e4f0ca VD |
1504 | } |
1505 | ||
1506 | void dsa_slave_unregister_notifier(void) | |
1507 | { | |
1508 | int err; | |
1509 | ||
c9eb3e0f AS |
1510 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1511 | if (err) | |
1512 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1513 | ||
88e4f0ca VD |
1514 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1515 | if (err) | |
1516 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1517 | } |