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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 | |
6d3c8c0d | 69 | return dsa_master_netdev(p)->ifindex; |
c0840801 LB |
70 | } |
71 | ||
91da11f8 LB |
72 | static int dsa_slave_open(struct net_device *dev) |
73 | { | |
df02c6ff | 74 | struct dsa_slave_priv *p = netdev_priv(dev); |
f3d736c4 VD |
75 | struct dsa_port *dp = p->dp; |
76 | struct dsa_switch *ds = dp->ds; | |
6d3c8c0d | 77 | struct net_device *master = dsa_master_netdev(p); |
f3d736c4 | 78 | u8 stp_state = dp->bridge_dev ? BR_STATE_BLOCKING : BR_STATE_FORWARDING; |
df02c6ff LB |
79 | int err; |
80 | ||
81 | if (!(master->flags & IFF_UP)) | |
82 | return -ENETDOWN; | |
83 | ||
8feedbb4 | 84 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 85 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
86 | if (err < 0) |
87 | goto out; | |
88 | } | |
89 | ||
90 | if (dev->flags & IFF_ALLMULTI) { | |
91 | err = dev_set_allmulti(master, 1); | |
92 | if (err < 0) | |
93 | goto del_unicast; | |
94 | } | |
95 | if (dev->flags & IFF_PROMISC) { | |
96 | err = dev_set_promiscuity(master, 1); | |
97 | if (err < 0) | |
98 | goto clear_allmulti; | |
99 | } | |
100 | ||
9d490b4e | 101 | if (ds->ops->port_enable) { |
afdcf151 | 102 | err = ds->ops->port_enable(ds, p->dp->index, p->phy); |
b2f2af21 FF |
103 | if (err) |
104 | goto clear_promisc; | |
105 | } | |
106 | ||
fd364541 | 107 | dsa_port_set_state_now(p->dp, stp_state); |
b73adef6 | 108 | |
f7f1de51 FF |
109 | if (p->phy) |
110 | phy_start(p->phy); | |
111 | ||
91da11f8 | 112 | return 0; |
df02c6ff | 113 | |
b2f2af21 FF |
114 | clear_promisc: |
115 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 116 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
117 | clear_allmulti: |
118 | if (dev->flags & IFF_ALLMULTI) | |
119 | dev_set_allmulti(master, -1); | |
120 | del_unicast: | |
8feedbb4 | 121 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 122 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
123 | out: |
124 | return err; | |
91da11f8 LB |
125 | } |
126 | ||
127 | static int dsa_slave_close(struct net_device *dev) | |
128 | { | |
df02c6ff | 129 | struct dsa_slave_priv *p = netdev_priv(dev); |
6d3c8c0d | 130 | struct net_device *master = dsa_master_netdev(p); |
afdcf151 | 131 | struct dsa_switch *ds = p->dp->ds; |
df02c6ff | 132 | |
f7f1de51 FF |
133 | if (p->phy) |
134 | phy_stop(p->phy); | |
135 | ||
df02c6ff | 136 | dev_mc_unsync(master, dev); |
a748ee24 | 137 | dev_uc_unsync(master, dev); |
df02c6ff LB |
138 | if (dev->flags & IFF_ALLMULTI) |
139 | dev_set_allmulti(master, -1); | |
140 | if (dev->flags & IFF_PROMISC) | |
141 | dev_set_promiscuity(master, -1); | |
142 | ||
8feedbb4 | 143 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 144 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 145 | |
9d490b4e | 146 | if (ds->ops->port_disable) |
afdcf151 | 147 | ds->ops->port_disable(ds, p->dp->index, p->phy); |
b2f2af21 | 148 | |
fd364541 | 149 | dsa_port_set_state_now(p->dp, BR_STATE_DISABLED); |
b73adef6 | 150 | |
91da11f8 LB |
151 | return 0; |
152 | } | |
153 | ||
154 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
155 | { | |
156 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 157 | struct net_device *master = dsa_master_netdev(p); |
91da11f8 LB |
158 | |
159 | if (change & IFF_ALLMULTI) | |
160 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
161 | if (change & IFF_PROMISC) | |
162 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
163 | } | |
164 | ||
165 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
166 | { | |
167 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 168 | struct net_device *master = dsa_master_netdev(p); |
91da11f8 LB |
169 | |
170 | dev_mc_sync(master, dev); | |
a748ee24 | 171 | dev_uc_sync(master, dev); |
91da11f8 LB |
172 | } |
173 | ||
df02c6ff | 174 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 175 | { |
df02c6ff | 176 | struct dsa_slave_priv *p = netdev_priv(dev); |
6d3c8c0d | 177 | struct net_device *master = dsa_master_netdev(p); |
df02c6ff LB |
178 | struct sockaddr *addr = a; |
179 | int err; | |
180 | ||
181 | if (!is_valid_ether_addr(addr->sa_data)) | |
182 | return -EADDRNOTAVAIL; | |
183 | ||
184 | if (!(dev->flags & IFF_UP)) | |
185 | goto out; | |
186 | ||
8feedbb4 | 187 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 188 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
189 | if (err < 0) |
190 | return err; | |
191 | } | |
192 | ||
8feedbb4 | 193 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 194 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
195 | |
196 | out: | |
d08f161a | 197 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
198 | |
199 | return 0; | |
200 | } | |
201 | ||
2bedde1a AS |
202 | struct dsa_slave_dump_ctx { |
203 | struct net_device *dev; | |
204 | struct sk_buff *skb; | |
205 | struct netlink_callback *cb; | |
206 | int idx; | |
207 | }; | |
208 | ||
209 | static int | |
210 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
211 | bool is_static, void *data) | |
212 | { | |
213 | struct dsa_slave_dump_ctx *dump = data; | |
214 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
215 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
216 | struct nlmsghdr *nlh; | |
217 | struct ndmsg *ndm; | |
218 | ||
219 | if (dump->idx < dump->cb->args[2]) | |
220 | goto skip; | |
221 | ||
222 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
223 | sizeof(*ndm), NLM_F_MULTI); | |
224 | if (!nlh) | |
225 | return -EMSGSIZE; | |
226 | ||
227 | ndm = nlmsg_data(nlh); | |
228 | ndm->ndm_family = AF_BRIDGE; | |
229 | ndm->ndm_pad1 = 0; | |
230 | ndm->ndm_pad2 = 0; | |
231 | ndm->ndm_flags = NTF_SELF; | |
232 | ndm->ndm_type = 0; | |
233 | ndm->ndm_ifindex = dump->dev->ifindex; | |
234 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
235 | ||
236 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
237 | goto nla_put_failure; | |
238 | ||
239 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
240 | goto nla_put_failure; | |
241 | ||
242 | nlmsg_end(dump->skb, nlh); | |
243 | ||
244 | skip: | |
245 | dump->idx++; | |
246 | return 0; | |
247 | ||
248 | nla_put_failure: | |
249 | nlmsg_cancel(dump->skb, nlh); | |
250 | return -EMSGSIZE; | |
251 | } | |
252 | ||
253 | static int | |
254 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
255 | struct net_device *dev, struct net_device *filter_dev, | |
256 | int *idx) | |
257 | { | |
258 | struct dsa_slave_dump_ctx dump = { | |
259 | .dev = dev, | |
260 | .skb = skb, | |
261 | .cb = cb, | |
262 | .idx = *idx, | |
263 | }; | |
264 | struct dsa_slave_priv *p = netdev_priv(dev); | |
265 | struct dsa_port *dp = p->dp; | |
266 | struct dsa_switch *ds = dp->ds; | |
267 | int err; | |
268 | ||
269 | if (!ds->ops->port_fdb_dump) | |
270 | return -EOPNOTSUPP; | |
271 | ||
272 | err = ds->ops->port_fdb_dump(ds, dp->index, | |
273 | dsa_slave_port_fdb_do_dump, | |
274 | &dump); | |
275 | *idx = dump.idx; | |
276 | return err; | |
277 | } | |
278 | ||
91da11f8 LB |
279 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
280 | { | |
281 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
282 | |
283 | if (p->phy != NULL) | |
28b04113 | 284 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
285 | |
286 | return -EOPNOTSUPP; | |
287 | } | |
288 | ||
35636062 | 289 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 290 | const struct switchdev_attr *attr, |
7ea6eb3f | 291 | struct switchdev_trans *trans) |
35636062 | 292 | { |
fd364541 VD |
293 | struct dsa_slave_priv *p = netdev_priv(dev); |
294 | struct dsa_port *dp = p->dp; | |
b8d866ac | 295 | int ret; |
35636062 SF |
296 | |
297 | switch (attr->id) { | |
1f868398 | 298 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 299 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 300 | break; |
fb2dabad | 301 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
302 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
303 | trans); | |
fb2dabad | 304 | break; |
34a79f63 | 305 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 306 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 307 | break; |
35636062 SF |
308 | default: |
309 | ret = -EOPNOTSUPP; | |
310 | break; | |
311 | } | |
312 | ||
313 | return ret; | |
314 | } | |
315 | ||
ba14d9eb | 316 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 317 | const struct switchdev_obj *obj, |
7ea6eb3f | 318 | struct switchdev_trans *trans) |
ba14d9eb | 319 | { |
3fdb023b VD |
320 | struct dsa_slave_priv *p = netdev_priv(dev); |
321 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
322 | int err; |
323 | ||
324 | /* For the prepare phase, ensure the full set of changes is feasable in | |
325 | * one go in order to signal a failure properly. If an operation is not | |
326 | * supported, return -EOPNOTSUPP. | |
327 | */ | |
328 | ||
9e8f4a54 | 329 | switch (obj->id) { |
8df30255 | 330 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 331 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 332 | break; |
57d80838 | 333 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
334 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
335 | trans); | |
11149536 | 336 | break; |
ba14d9eb VD |
337 | default: |
338 | err = -EOPNOTSUPP; | |
339 | break; | |
340 | } | |
341 | ||
342 | return err; | |
343 | } | |
344 | ||
345 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 346 | const struct switchdev_obj *obj) |
ba14d9eb | 347 | { |
3fdb023b VD |
348 | struct dsa_slave_priv *p = netdev_priv(dev); |
349 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
350 | int err; |
351 | ||
9e8f4a54 | 352 | switch (obj->id) { |
8df30255 | 353 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 354 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 355 | break; |
57d80838 | 356 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 357 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 358 | break; |
ba14d9eb VD |
359 | default: |
360 | err = -EOPNOTSUPP; | |
361 | break; | |
362 | } | |
363 | ||
364 | return err; | |
365 | } | |
366 | ||
f8e20a9f SF |
367 | static int dsa_slave_port_attr_get(struct net_device *dev, |
368 | struct switchdev_attr *attr) | |
b73adef6 FF |
369 | { |
370 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 371 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 372 | |
f8e20a9f | 373 | switch (attr->id) { |
1f868398 | 374 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
375 | attr->u.ppid.id_len = sizeof(ds->index); |
376 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f | 377 | break; |
c9e2105e AS |
378 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT: |
379 | attr->u.brport_flags_support = 0; | |
380 | break; | |
f8e20a9f SF |
381 | default: |
382 | return -EOPNOTSUPP; | |
383 | } | |
b73adef6 FF |
384 | |
385 | return 0; | |
386 | } | |
387 | ||
04ff53f9 FF |
388 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
389 | struct sk_buff *skb) | |
390 | { | |
391 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
392 | if (p->netpoll) | |
393 | netpoll_send_skb(p->netpoll, skb); | |
394 | #else | |
395 | BUG(); | |
396 | #endif | |
397 | return NETDEV_TX_OK; | |
398 | } | |
399 | ||
3e8a72d1 FF |
400 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
401 | { | |
402 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 403 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 404 | struct sk_buff *nskb; |
3e8a72d1 | 405 | |
5f6b4e14 FF |
406 | s = this_cpu_ptr(p->stats64); |
407 | u64_stats_update_begin(&s->syncp); | |
408 | s->tx_packets++; | |
409 | s->tx_bytes += skb->len; | |
410 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 411 | |
fe47d563 VD |
412 | /* Transmit function may have to reallocate the original SKB, |
413 | * in which case it must have freed it. Only free it here on error. | |
414 | */ | |
4ed70ce9 | 415 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
416 | if (!nskb) { |
417 | kfree_skb(skb); | |
4ed70ce9 | 418 | return NETDEV_TX_OK; |
fe47d563 | 419 | } |
5aed85ce | 420 | |
04ff53f9 FF |
421 | /* SKB for netpoll still need to be mangled with the protocol-specific |
422 | * tag to be successfully transmitted | |
423 | */ | |
424 | if (unlikely(netpoll_tx_running(dev))) | |
425 | return dsa_netpoll_send_skb(p, nskb); | |
426 | ||
4ed70ce9 FF |
427 | /* Queue the SKB for transmission on the parent interface, but |
428 | * do not modify its EtherType | |
429 | */ | |
6d3c8c0d | 430 | nskb->dev = dsa_master_netdev(p); |
4ed70ce9 | 431 | dev_queue_xmit(nskb); |
5aed85ce FF |
432 | |
433 | return NETDEV_TX_OK; | |
434 | } | |
435 | ||
91da11f8 LB |
436 | /* ethtool operations *******************************************************/ |
437 | static int | |
bb10bb3e PR |
438 | dsa_slave_get_link_ksettings(struct net_device *dev, |
439 | struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
440 | { |
441 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 | 442 | |
5514174f | 443 | if (!p->phy) |
444 | return -EOPNOTSUPP; | |
91da11f8 | 445 | |
5514174f | 446 | phy_ethtool_ksettings_get(p->phy, cmd); |
447 | ||
448 | return 0; | |
91da11f8 LB |
449 | } |
450 | ||
451 | static int | |
bb10bb3e PR |
452 | dsa_slave_set_link_ksettings(struct net_device *dev, |
453 | const struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
454 | { |
455 | struct dsa_slave_priv *p = netdev_priv(dev); | |
456 | ||
457 | if (p->phy != NULL) | |
bb10bb3e | 458 | return phy_ethtool_ksettings_set(p->phy, cmd); |
91da11f8 LB |
459 | |
460 | return -EOPNOTSUPP; | |
461 | } | |
462 | ||
463 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
464 | struct ethtool_drvinfo *drvinfo) | |
465 | { | |
7826d43f | 466 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
467 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
468 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
469 | } |
470 | ||
3d762a0f GR |
471 | static int dsa_slave_get_regs_len(struct net_device *dev) |
472 | { | |
473 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 474 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 475 | |
9d490b4e | 476 | if (ds->ops->get_regs_len) |
afdcf151 | 477 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
478 | |
479 | return -EOPNOTSUPP; | |
480 | } | |
481 | ||
482 | static void | |
483 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
484 | { | |
485 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 486 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 487 | |
9d490b4e | 488 | if (ds->ops->get_regs) |
afdcf151 | 489 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
490 | } |
491 | ||
91da11f8 LB |
492 | static int dsa_slave_nway_reset(struct net_device *dev) |
493 | { | |
494 | struct dsa_slave_priv *p = netdev_priv(dev); | |
495 | ||
496 | if (p->phy != NULL) | |
497 | return genphy_restart_aneg(p->phy); | |
498 | ||
499 | return -EOPNOTSUPP; | |
500 | } | |
501 | ||
502 | static u32 dsa_slave_get_link(struct net_device *dev) | |
503 | { | |
504 | struct dsa_slave_priv *p = netdev_priv(dev); | |
505 | ||
506 | if (p->phy != NULL) { | |
507 | genphy_update_link(p->phy); | |
508 | return p->phy->link; | |
509 | } | |
510 | ||
511 | return -EOPNOTSUPP; | |
512 | } | |
513 | ||
6793abb4 GR |
514 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
515 | { | |
516 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 517 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 518 | |
0e576044 | 519 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 520 | return ds->cd->eeprom_len; |
6793abb4 | 521 | |
9d490b4e VD |
522 | if (ds->ops->get_eeprom_len) |
523 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
524 | |
525 | return 0; | |
526 | } | |
527 | ||
528 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
529 | struct ethtool_eeprom *eeprom, u8 *data) | |
530 | { | |
531 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 532 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 533 | |
9d490b4e VD |
534 | if (ds->ops->get_eeprom) |
535 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
536 | |
537 | return -EOPNOTSUPP; | |
538 | } | |
539 | ||
540 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
541 | struct ethtool_eeprom *eeprom, u8 *data) | |
542 | { | |
543 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 544 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 545 | |
9d490b4e VD |
546 | if (ds->ops->set_eeprom) |
547 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
548 | |
549 | return -EOPNOTSUPP; | |
550 | } | |
551 | ||
91da11f8 LB |
552 | static void dsa_slave_get_strings(struct net_device *dev, |
553 | uint32_t stringset, uint8_t *data) | |
554 | { | |
555 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 556 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
557 | |
558 | if (stringset == ETH_SS_STATS) { | |
559 | int len = ETH_GSTRING_LEN; | |
560 | ||
561 | strncpy(data, "tx_packets", len); | |
562 | strncpy(data + len, "tx_bytes", len); | |
563 | strncpy(data + 2 * len, "rx_packets", len); | |
564 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 565 | if (ds->ops->get_strings) |
afdcf151 | 566 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
567 | } |
568 | } | |
569 | ||
badf3ada FF |
570 | static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev, |
571 | struct ethtool_stats *stats, | |
572 | uint64_t *data) | |
573 | { | |
574 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
3cc9f257 FF |
575 | struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |
576 | struct dsa_switch *ds = cpu_dp->ds; | |
577 | s8 cpu_port = cpu_dp->index; | |
badf3ada FF |
578 | int count = 0; |
579 | ||
3cc9f257 FF |
580 | if (cpu_dp->ethtool_ops.get_sset_count) { |
581 | count = cpu_dp->ethtool_ops.get_sset_count(dev, ETH_SS_STATS); | |
582 | cpu_dp->ethtool_ops.get_ethtool_stats(dev, stats, data); | |
badf3ada FF |
583 | } |
584 | ||
9d490b4e VD |
585 | if (ds->ops->get_ethtool_stats) |
586 | ds->ops->get_ethtool_stats(ds, cpu_port, data + count); | |
badf3ada FF |
587 | } |
588 | ||
589 | static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset) | |
590 | { | |
591 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
3cc9f257 FF |
592 | struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |
593 | struct dsa_switch *ds = cpu_dp->ds; | |
badf3ada FF |
594 | int count = 0; |
595 | ||
3cc9f257 FF |
596 | if (cpu_dp->ethtool_ops.get_sset_count) |
597 | count += cpu_dp->ethtool_ops.get_sset_count(dev, sset); | |
badf3ada | 598 | |
9d490b4e VD |
599 | if (sset == ETH_SS_STATS && ds->ops->get_sset_count) |
600 | count += ds->ops->get_sset_count(ds); | |
badf3ada FF |
601 | |
602 | return count; | |
603 | } | |
604 | ||
605 | static void dsa_cpu_port_get_strings(struct net_device *dev, | |
606 | uint32_t stringset, uint8_t *data) | |
607 | { | |
608 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
3cc9f257 FF |
609 | struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |
610 | struct dsa_switch *ds = cpu_dp->ds; | |
611 | s8 cpu_port = cpu_dp->index; | |
badf3ada FF |
612 | int len = ETH_GSTRING_LEN; |
613 | int mcount = 0, count; | |
614 | unsigned int i; | |
615 | uint8_t pfx[4]; | |
616 | uint8_t *ndata; | |
617 | ||
618 | snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port); | |
619 | /* We do not want to be NULL-terminated, since this is a prefix */ | |
620 | pfx[sizeof(pfx) - 1] = '_'; | |
621 | ||
3cc9f257 FF |
622 | if (cpu_dp->ethtool_ops.get_sset_count) { |
623 | mcount = cpu_dp->ethtool_ops.get_sset_count(dev, ETH_SS_STATS); | |
624 | cpu_dp->ethtool_ops.get_strings(dev, stringset, data); | |
badf3ada FF |
625 | } |
626 | ||
9d490b4e | 627 | if (stringset == ETH_SS_STATS && ds->ops->get_strings) { |
badf3ada FF |
628 | ndata = data + mcount * len; |
629 | /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle | |
630 | * the output after to prepend our CPU port prefix we | |
631 | * constructed earlier | |
632 | */ | |
9d490b4e VD |
633 | ds->ops->get_strings(ds, cpu_port, ndata); |
634 | count = ds->ops->get_sset_count(ds); | |
badf3ada FF |
635 | for (i = 0; i < count; i++) { |
636 | memmove(ndata + (i * len + sizeof(pfx)), | |
637 | ndata + i * len, len - sizeof(pfx)); | |
638 | memcpy(ndata + i * len, pfx, sizeof(pfx)); | |
639 | } | |
640 | } | |
641 | } | |
642 | ||
91da11f8 LB |
643 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, |
644 | struct ethtool_stats *stats, | |
645 | uint64_t *data) | |
646 | { | |
647 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 648 | struct dsa_switch *ds = p->dp->ds; |
5f6b4e14 | 649 | struct pcpu_sw_netstats *s; |
f613ed66 | 650 | unsigned int start; |
5f6b4e14 FF |
651 | int i; |
652 | ||
653 | for_each_possible_cpu(i) { | |
654 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
655 | ||
656 | s = per_cpu_ptr(p->stats64, i); | |
657 | do { | |
658 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
659 | tx_packets = s->tx_packets; | |
660 | tx_bytes = s->tx_bytes; | |
661 | rx_packets = s->rx_packets; | |
662 | rx_bytes = s->rx_bytes; | |
663 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
664 | data[0] += tx_packets; | |
665 | data[1] += tx_bytes; | |
666 | data[2] += rx_packets; | |
667 | data[3] += rx_bytes; | |
668 | } | |
9d490b4e | 669 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 670 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
671 | } |
672 | ||
673 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
674 | { | |
675 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 676 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
677 | |
678 | if (sset == ETH_SS_STATS) { | |
679 | int count; | |
680 | ||
681 | count = 4; | |
9d490b4e VD |
682 | if (ds->ops->get_sset_count) |
683 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
684 | |
685 | return count; | |
686 | } | |
687 | ||
688 | return -EOPNOTSUPP; | |
689 | } | |
690 | ||
19e57c4e FF |
691 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
692 | { | |
693 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 694 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 695 | |
9d490b4e | 696 | if (ds->ops->get_wol) |
afdcf151 | 697 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
698 | } |
699 | ||
700 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
701 | { | |
702 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 703 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
704 | int ret = -EOPNOTSUPP; |
705 | ||
9d490b4e | 706 | if (ds->ops->set_wol) |
afdcf151 | 707 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
708 | |
709 | return ret; | |
710 | } | |
711 | ||
7905288f FF |
712 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
713 | { | |
714 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 715 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
716 | int ret; |
717 | ||
7b9cc738 VD |
718 | /* Port's PHY and MAC both need to be EEE capable */ |
719 | if (!p->phy) | |
720 | return -ENODEV; | |
721 | ||
08f50061 | 722 | if (!ds->ops->set_mac_eee) |
7905288f FF |
723 | return -EOPNOTSUPP; |
724 | ||
08f50061 | 725 | ret = ds->ops->set_mac_eee(ds, p->dp->index, e); |
7905288f FF |
726 | if (ret) |
727 | return ret; | |
728 | ||
c48f7eb3 VD |
729 | if (e->eee_enabled) { |
730 | ret = phy_init_eee(p->phy, 0); | |
731 | if (ret) | |
732 | return ret; | |
733 | } | |
734 | ||
7b9cc738 | 735 | return phy_ethtool_set_eee(p->phy, e); |
7905288f FF |
736 | } |
737 | ||
738 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
739 | { | |
740 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 741 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
742 | int ret; |
743 | ||
7b9cc738 VD |
744 | /* Port's PHY and MAC both need to be EEE capable */ |
745 | if (!p->phy) | |
746 | return -ENODEV; | |
747 | ||
08f50061 | 748 | if (!ds->ops->get_mac_eee) |
7905288f FF |
749 | return -EOPNOTSUPP; |
750 | ||
08f50061 | 751 | ret = ds->ops->get_mac_eee(ds, p->dp->index, e); |
7905288f FF |
752 | if (ret) |
753 | return ret; | |
754 | ||
7b9cc738 | 755 | return phy_ethtool_get_eee(p->phy, e); |
7905288f FF |
756 | } |
757 | ||
04ff53f9 FF |
758 | #ifdef CONFIG_NET_POLL_CONTROLLER |
759 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
760 | struct netpoll_info *ni) | |
761 | { | |
762 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 763 | struct net_device *master = dsa_master_netdev(p); |
04ff53f9 FF |
764 | struct netpoll *netpoll; |
765 | int err = 0; | |
766 | ||
767 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
768 | if (!netpoll) | |
769 | return -ENOMEM; | |
770 | ||
771 | err = __netpoll_setup(netpoll, master); | |
772 | if (err) { | |
773 | kfree(netpoll); | |
774 | goto out; | |
775 | } | |
776 | ||
777 | p->netpoll = netpoll; | |
778 | out: | |
779 | return err; | |
780 | } | |
781 | ||
782 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
783 | { | |
784 | struct dsa_slave_priv *p = netdev_priv(dev); | |
785 | struct netpoll *netpoll = p->netpoll; | |
786 | ||
787 | if (!netpoll) | |
788 | return; | |
789 | ||
790 | p->netpoll = NULL; | |
791 | ||
792 | __netpoll_free_async(netpoll); | |
793 | } | |
794 | ||
795 | static void dsa_slave_poll_controller(struct net_device *dev) | |
796 | { | |
797 | } | |
798 | #endif | |
799 | ||
44bb765c FF |
800 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
801 | char *name, size_t len) | |
802 | { | |
803 | struct dsa_slave_priv *p = netdev_priv(dev); | |
804 | ||
afdcf151 | 805 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 806 | return -EINVAL; |
3a543ef4 FF |
807 | |
808 | return 0; | |
809 | } | |
810 | ||
f50f2127 FF |
811 | static struct dsa_mall_tc_entry * |
812 | dsa_slave_mall_tc_entry_find(struct dsa_slave_priv *p, | |
813 | unsigned long cookie) | |
814 | { | |
815 | struct dsa_mall_tc_entry *mall_tc_entry; | |
816 | ||
817 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
818 | if (mall_tc_entry->cookie == cookie) | |
819 | return mall_tc_entry; | |
820 | ||
821 | return NULL; | |
822 | } | |
823 | ||
824 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
825 | struct tc_cls_matchall_offload *cls, |
826 | bool ingress) | |
827 | { | |
828 | struct dsa_slave_priv *p = netdev_priv(dev); | |
829 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 830 | __be16 protocol = cls->common.protocol; |
f50f2127 FF |
831 | struct dsa_switch *ds = p->dp->ds; |
832 | struct net *net = dev_net(dev); | |
833 | struct dsa_slave_priv *to_p; | |
834 | struct net_device *to_dev; | |
835 | const struct tc_action *a; | |
836 | int err = -EOPNOTSUPP; | |
837 | LIST_HEAD(actions); | |
838 | int ifindex; | |
839 | ||
840 | if (!ds->ops->port_mirror_add) | |
841 | return err; | |
842 | ||
3bcc0cec | 843 | if (!tcf_exts_has_one_action(cls->exts)) |
f50f2127 FF |
844 | return err; |
845 | ||
846 | tcf_exts_to_list(cls->exts, &actions); | |
847 | a = list_first_entry(&actions, struct tc_action, list); | |
848 | ||
849 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
850 | struct dsa_mall_mirror_tc_entry *mirror; | |
851 | ||
852 | ifindex = tcf_mirred_ifindex(a); | |
853 | to_dev = __dev_get_by_index(net, ifindex); | |
854 | if (!to_dev) | |
855 | return -EINVAL; | |
856 | ||
857 | if (!dsa_slave_dev_check(to_dev)) | |
858 | return -EOPNOTSUPP; | |
859 | ||
860 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
861 | if (!mall_tc_entry) | |
862 | return -ENOMEM; | |
863 | ||
864 | mall_tc_entry->cookie = cls->cookie; | |
865 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
866 | mirror = &mall_tc_entry->mirror; | |
867 | ||
868 | to_p = netdev_priv(to_dev); | |
869 | ||
870 | mirror->to_local_port = to_p->dp->index; | |
871 | mirror->ingress = ingress; | |
872 | ||
873 | err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, | |
874 | ingress); | |
875 | if (err) { | |
876 | kfree(mall_tc_entry); | |
877 | return err; | |
878 | } | |
879 | ||
880 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
881 | } | |
882 | ||
883 | return 0; | |
884 | } | |
885 | ||
886 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
887 | struct tc_cls_matchall_offload *cls) | |
888 | { | |
889 | struct dsa_slave_priv *p = netdev_priv(dev); | |
890 | struct dsa_mall_tc_entry *mall_tc_entry; | |
891 | struct dsa_switch *ds = p->dp->ds; | |
892 | ||
893 | if (!ds->ops->port_mirror_del) | |
894 | return; | |
895 | ||
896 | mall_tc_entry = dsa_slave_mall_tc_entry_find(p, cls->cookie); | |
897 | if (!mall_tc_entry) | |
898 | return; | |
899 | ||
900 | list_del(&mall_tc_entry->list); | |
901 | ||
902 | switch (mall_tc_entry->type) { | |
903 | case DSA_PORT_MALL_MIRROR: | |
904 | ds->ops->port_mirror_del(ds, p->dp->index, | |
905 | &mall_tc_entry->mirror); | |
906 | break; | |
907 | default: | |
908 | WARN_ON(1); | |
909 | } | |
910 | ||
911 | kfree(mall_tc_entry); | |
912 | } | |
913 | ||
3fbae382 | 914 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
3fbae382 | 915 | struct tc_cls_matchall_offload *cls) |
f50f2127 | 916 | { |
a2e8da93 JP |
917 | bool ingress; |
918 | ||
919 | if (is_classid_clsact_ingress(cls->common.classid)) | |
920 | ingress = true; | |
921 | else if (is_classid_clsact_egress(cls->common.classid)) | |
922 | ingress = false; | |
923 | else | |
924 | return -EOPNOTSUPP; | |
a5fcf8a6 | 925 | |
5fd9fc4e | 926 | if (cls->common.chain_index) |
a5fcf8a6 | 927 | return -EOPNOTSUPP; |
f50f2127 | 928 | |
3fbae382 JP |
929 | switch (cls->command) { |
930 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 931 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
932 | case TC_CLSMATCHALL_DESTROY: |
933 | dsa_slave_del_cls_matchall(dev, cls); | |
934 | return 0; | |
935 | default: | |
936 | return -EOPNOTSUPP; | |
937 | } | |
938 | } | |
939 | ||
940 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, | |
de4784ca | 941 | void *type_data) |
3fbae382 | 942 | { |
2572ac53 | 943 | switch (type) { |
ade9b658 | 944 | case TC_SETUP_CLSMATCHALL: |
de4784ca | 945 | return dsa_slave_setup_tc_cls_matchall(dev, type_data); |
f50f2127 | 946 | default: |
a5fcf8a6 | 947 | return -EOPNOTSUPP; |
f50f2127 | 948 | } |
f50f2127 FF |
949 | } |
950 | ||
f613ed66 FF |
951 | static void dsa_slave_get_stats64(struct net_device *dev, |
952 | struct rtnl_link_stats64 *stats) | |
953 | { | |
954 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 955 | struct pcpu_sw_netstats *s; |
f613ed66 | 956 | unsigned int start; |
5f6b4e14 | 957 | int i; |
f613ed66 FF |
958 | |
959 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
960 | for_each_possible_cpu(i) { |
961 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
962 | ||
963 | s = per_cpu_ptr(p->stats64, i); | |
964 | do { | |
965 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
966 | tx_packets = s->tx_packets; | |
967 | tx_bytes = s->tx_bytes; | |
968 | rx_packets = s->rx_packets; | |
969 | rx_bytes = s->rx_bytes; | |
970 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
971 | ||
972 | stats->tx_packets += tx_packets; | |
973 | stats->tx_bytes += tx_bytes; | |
974 | stats->rx_packets += rx_packets; | |
975 | stats->rx_bytes += rx_bytes; | |
976 | } | |
f613ed66 FF |
977 | } |
978 | ||
af42192c FF |
979 | void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops) |
980 | { | |
981 | ops->get_sset_count = dsa_cpu_port_get_sset_count; | |
982 | ops->get_ethtool_stats = dsa_cpu_port_get_ethtool_stats; | |
983 | ops->get_strings = dsa_cpu_port_get_strings; | |
984 | } | |
985 | ||
bf9f2648 FF |
986 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
987 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
988 | { | |
989 | struct dsa_slave_priv *p = netdev_priv(dev); | |
990 | struct dsa_switch *ds = p->dp->ds; | |
991 | ||
992 | if (!ds->ops->get_rxnfc) | |
993 | return -EOPNOTSUPP; | |
994 | ||
995 | return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); | |
996 | } | |
997 | ||
998 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
999 | struct ethtool_rxnfc *nfc) | |
1000 | { | |
1001 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1002 | struct dsa_switch *ds = p->dp->ds; | |
1003 | ||
1004 | if (!ds->ops->set_rxnfc) | |
1005 | return -EOPNOTSUPP; | |
1006 | ||
1007 | return ds->ops->set_rxnfc(ds, p->dp->index, nfc); | |
1008 | } | |
1009 | ||
91da11f8 | 1010 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1011 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1012 | .get_regs_len = dsa_slave_get_regs_len, |
1013 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
1014 | .nway_reset = dsa_slave_nway_reset, |
1015 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
1016 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1017 | .get_eeprom = dsa_slave_get_eeprom, | |
1018 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1019 | .get_strings = dsa_slave_get_strings, |
1020 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1021 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1022 | .set_wol = dsa_slave_set_wol, |
1023 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1024 | .set_eee = dsa_slave_set_eee, |
1025 | .get_eee = dsa_slave_get_eee, | |
bb10bb3e PR |
1026 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1027 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
1028 | .get_rxnfc = dsa_slave_get_rxnfc, |
1029 | .set_rxnfc = dsa_slave_set_rxnfc, | |
91da11f8 LB |
1030 | }; |
1031 | ||
3e8a72d1 | 1032 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1033 | .ndo_open = dsa_slave_open, |
1034 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1035 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1036 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1037 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1038 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
1039 | .ndo_fdb_add = dsa_legacy_fdb_add, |
1040 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 1041 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 1042 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1043 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1044 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1045 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1046 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1047 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1048 | #endif | |
44bb765c | 1049 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1050 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 1051 | .ndo_get_stats64 = dsa_slave_get_stats64, |
98237d43 SF |
1052 | }; |
1053 | ||
9d47c0a2 | 1054 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 1055 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 1056 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1057 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1058 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
d442ad4a | 1059 | }; |
91da11f8 | 1060 | |
f37db85d FF |
1061 | static struct device_type dsa_type = { |
1062 | .name = "dsa", | |
1063 | }; | |
1064 | ||
0d8bcdd3 FF |
1065 | static void dsa_slave_adjust_link(struct net_device *dev) |
1066 | { | |
1067 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 1068 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
1069 | unsigned int status_changed = 0; |
1070 | ||
1071 | if (p->old_link != p->phy->link) { | |
1072 | status_changed = 1; | |
1073 | p->old_link = p->phy->link; | |
1074 | } | |
1075 | ||
1076 | if (p->old_duplex != p->phy->duplex) { | |
1077 | status_changed = 1; | |
1078 | p->old_duplex = p->phy->duplex; | |
1079 | } | |
1080 | ||
1081 | if (p->old_pause != p->phy->pause) { | |
1082 | status_changed = 1; | |
1083 | p->old_pause = p->phy->pause; | |
1084 | } | |
1085 | ||
9d490b4e | 1086 | if (ds->ops->adjust_link && status_changed) |
afdcf151 | 1087 | ds->ops->adjust_link(ds, p->dp->index, p->phy); |
ec9436ba | 1088 | |
0d8bcdd3 FF |
1089 | if (status_changed) |
1090 | phy_print_status(p->phy); | |
1091 | } | |
1092 | ||
ce31b31c FF |
1093 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1094 | struct fixed_phy_status *status) | |
1095 | { | |
b71be352 AL |
1096 | struct dsa_slave_priv *p; |
1097 | struct dsa_switch *ds; | |
1098 | ||
1099 | if (dev) { | |
1100 | p = netdev_priv(dev); | |
afdcf151 | 1101 | ds = p->dp->ds; |
9d490b4e | 1102 | if (ds->ops->fixed_link_update) |
afdcf151 | 1103 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 1104 | } |
ce31b31c FF |
1105 | |
1106 | return 0; | |
1107 | } | |
1108 | ||
91da11f8 | 1109 | /* slave device setup *******************************************************/ |
c305c165 | 1110 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1111 | struct net_device *slave_dev, |
1112 | int addr) | |
c305c165 | 1113 | { |
afdcf151 | 1114 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 1115 | |
7f854420 | 1116 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1117 | if (!p->phy) { |
1118 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1119 | return -ENODEV; |
d25b8e74 | 1120 | } |
c305c165 FF |
1121 | |
1122 | /* Use already configured phy mode */ | |
211c504a FF |
1123 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1124 | p->phy_interface = p->phy->interface; | |
4078b76c FF |
1125 | return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1126 | p->phy_interface); | |
c305c165 FF |
1127 | } |
1128 | ||
9697f1cd | 1129 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1130 | struct net_device *slave_dev) |
1131 | { | |
afdcf151 | 1132 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1133 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1134 | bool phy_is_fixed = false; |
6819563e | 1135 | u32 phy_flags = 0; |
19334920 | 1136 | int mode, ret; |
0d8bcdd3 | 1137 | |
afdcf151 | 1138 | port_dn = p->dp->dn; |
19334920 GR |
1139 | mode = of_get_phy_mode(port_dn); |
1140 | if (mode < 0) | |
1141 | mode = PHY_INTERFACE_MODE_NA; | |
1142 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1143 | |
1144 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1145 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1146 | /* In the case of a fixed PHY, the DT node associated |
1147 | * to the fixed PHY is the Port DT node | |
1148 | */ | |
1149 | ret = of_phy_register_fixed_link(port_dn); | |
1150 | if (ret) { | |
d25b8e74 | 1151 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1152 | return ret; |
0d8bcdd3 | 1153 | } |
ce31b31c | 1154 | phy_is_fixed = true; |
0d8f3c67 | 1155 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1156 | } |
1157 | ||
9d490b4e | 1158 | if (ds->ops->get_phy_flags) |
afdcf151 | 1159 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1160 | |
cd28a1a9 | 1161 | if (phy_dn) { |
d25b8e74 RK |
1162 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1163 | ||
cd28a1a9 FF |
1164 | /* If this PHY address is part of phys_mii_mask, which means |
1165 | * that we need to divert reads and writes to/from it, then we | |
1166 | * want to bind this device using the slave MII bus created by | |
1167 | * DSA to make that happen. | |
1168 | */ | |
d25b8e74 RK |
1169 | if (!phy_is_fixed && phy_id >= 0 && |
1170 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1171 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1172 | if (ret) { | |
1173 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1174 | of_node_put(phy_dn); |
cd28a1a9 | 1175 | return ret; |
d25b8e74 | 1176 | } |
cd28a1a9 FF |
1177 | } else { |
1178 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1179 | dsa_slave_adjust_link, | |
1180 | phy_flags, | |
1181 | p->phy_interface); | |
1182 | } | |
0d8f3c67 JH |
1183 | |
1184 | of_node_put(phy_dn); | |
cd28a1a9 | 1185 | } |
0d8bcdd3 | 1186 | |
ce31b31c FF |
1187 | if (p->phy && phy_is_fixed) |
1188 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1189 | ||
0d8bcdd3 FF |
1190 | /* We could not connect to a designated PHY, so use the switch internal |
1191 | * MDIO bus instead | |
1192 | */ | |
b31f65fb | 1193 | if (!p->phy) { |
afdcf151 | 1194 | ret = dsa_slave_phy_connect(p, slave_dev, p->dp->index); |
d25b8e74 | 1195 | if (ret) { |
afdcf151 VD |
1196 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1197 | p->dp->index, ret); | |
881eadab JH |
1198 | if (phy_is_fixed) |
1199 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1200 | return ret; |
d25b8e74 | 1201 | } |
b31f65fb | 1202 | } |
9697f1cd | 1203 | |
2220943a AL |
1204 | phy_attached_info(p->phy); |
1205 | ||
9697f1cd | 1206 | return 0; |
0d8bcdd3 FF |
1207 | } |
1208 | ||
448b4482 AL |
1209 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1210 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1211 | struct netdev_queue *txq, | |
1212 | void *_unused) | |
1213 | { | |
1214 | lockdep_set_class(&txq->_xmit_lock, | |
1215 | &dsa_slave_netdev_xmit_lock_key); | |
1216 | } | |
1217 | ||
24462549 FF |
1218 | int dsa_slave_suspend(struct net_device *slave_dev) |
1219 | { | |
1220 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1221 | ||
f154be24 FF |
1222 | netif_device_detach(slave_dev); |
1223 | ||
24462549 FF |
1224 | if (p->phy) { |
1225 | phy_stop(p->phy); | |
1226 | p->old_pause = -1; | |
1227 | p->old_link = -1; | |
1228 | p->old_duplex = -1; | |
1229 | phy_suspend(p->phy); | |
1230 | } | |
1231 | ||
1232 | return 0; | |
1233 | } | |
1234 | ||
1235 | int dsa_slave_resume(struct net_device *slave_dev) | |
1236 | { | |
1237 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1238 | ||
1239 | netif_device_attach(slave_dev); | |
1240 | ||
1241 | if (p->phy) { | |
1242 | phy_resume(p->phy); | |
1243 | phy_start(p->phy); | |
1244 | } | |
1245 | ||
1246 | return 0; | |
1247 | } | |
1248 | ||
4cfbf09c | 1249 | int dsa_slave_create(struct dsa_port *port, const char *name) |
91da11f8 | 1250 | { |
4cfbf09c | 1251 | struct dsa_switch *ds = port->ds; |
badf3ada | 1252 | struct dsa_switch_tree *dst = ds->dst; |
83c0afae | 1253 | struct net_device *master; |
91da11f8 LB |
1254 | struct net_device *slave_dev; |
1255 | struct dsa_slave_priv *p; | |
a29342e7 | 1256 | struct dsa_port *cpu_dp; |
91da11f8 LB |
1257 | int ret; |
1258 | ||
a29342e7 FF |
1259 | cpu_dp = ds->dst->cpu_dp; |
1260 | master = cpu_dp->netdev; | |
83c0afae | 1261 | |
55199df6 FF |
1262 | if (!ds->num_tx_queues) |
1263 | ds->num_tx_queues = 1; | |
1264 | ||
1265 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1266 | NET_NAME_UNKNOWN, ether_setup, | |
1267 | ds->num_tx_queues, 1); | |
91da11f8 | 1268 | if (slave_dev == NULL) |
d87d6f44 | 1269 | return -ENOMEM; |
91da11f8 | 1270 | |
f50f2127 FF |
1271 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1272 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1273 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1274 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1275 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1276 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1277 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1278 | slave_dev->min_mtu = 0; |
1279 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1280 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1281 | |
448b4482 AL |
1282 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1283 | NULL); | |
1284 | ||
4cfbf09c VD |
1285 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1286 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1287 | slave_dev->vlan_features = master->vlan_features; |
1288 | ||
1289 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1290 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1291 | if (!p->stats64) { | |
1292 | free_netdev(slave_dev); | |
1293 | return -ENOMEM; | |
1294 | } | |
4cfbf09c | 1295 | p->dp = port; |
f50f2127 | 1296 | INIT_LIST_HEAD(&p->mall_tc_list); |
39a7f2a4 | 1297 | p->xmit = dst->tag_ops->xmit; |
d442ad4a | 1298 | |
0d8bcdd3 FF |
1299 | p->old_pause = -1; |
1300 | p->old_link = -1; | |
1301 | p->old_duplex = -1; | |
1302 | ||
4cfbf09c | 1303 | port->netdev = slave_dev; |
91da11f8 LB |
1304 | ret = register_netdev(slave_dev); |
1305 | if (ret) { | |
a2ae6007 JP |
1306 | netdev_err(master, "error %d registering interface %s\n", |
1307 | ret, slave_dev->name); | |
4cfbf09c | 1308 | port->netdev = NULL; |
5f6b4e14 | 1309 | free_percpu(p->stats64); |
91da11f8 | 1310 | free_netdev(slave_dev); |
d87d6f44 | 1311 | return ret; |
91da11f8 LB |
1312 | } |
1313 | ||
1314 | netif_carrier_off(slave_dev); | |
1315 | ||
0071f56e AL |
1316 | ret = dsa_slave_phy_setup(p, slave_dev); |
1317 | if (ret) { | |
1318 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1319 | unregister_netdev(slave_dev); |
5f6b4e14 | 1320 | free_percpu(p->stats64); |
0071f56e AL |
1321 | free_netdev(slave_dev); |
1322 | return ret; | |
1323 | } | |
1324 | ||
d87d6f44 | 1325 | return 0; |
91da11f8 | 1326 | } |
b73adef6 | 1327 | |
cda5c15b NA |
1328 | void dsa_slave_destroy(struct net_device *slave_dev) |
1329 | { | |
1330 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1331 | struct device_node *port_dn; |
1332 | ||
afdcf151 | 1333 | port_dn = p->dp->dn; |
cda5c15b NA |
1334 | |
1335 | netif_carrier_off(slave_dev); | |
881eadab | 1336 | if (p->phy) { |
cda5c15b | 1337 | phy_disconnect(p->phy); |
881eadab JH |
1338 | |
1339 | if (of_phy_is_fixed_link(port_dn)) | |
1340 | of_phy_deregister_fixed_link(port_dn); | |
1341 | } | |
cda5c15b | 1342 | unregister_netdev(slave_dev); |
5f6b4e14 | 1343 | free_percpu(p->stats64); |
cda5c15b NA |
1344 | free_netdev(slave_dev); |
1345 | } | |
1346 | ||
b73adef6 FF |
1347 | static bool dsa_slave_dev_check(struct net_device *dev) |
1348 | { | |
1349 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1350 | } | |
1351 | ||
8e92ab3a VD |
1352 | static int dsa_slave_changeupper(struct net_device *dev, |
1353 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1354 | { |
17d7802b VD |
1355 | struct dsa_slave_priv *p = netdev_priv(dev); |
1356 | struct dsa_port *dp = p->dp; | |
8e92ab3a | 1357 | int err = NOTIFY_DONE; |
b73adef6 | 1358 | |
8e92ab3a VD |
1359 | if (netif_is_bridge_master(info->upper_dev)) { |
1360 | if (info->linking) { | |
17d7802b | 1361 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1362 | err = notifier_from_errno(err); |
1363 | } else { | |
17d7802b | 1364 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1365 | err = NOTIFY_OK; |
6debb68a | 1366 | } |
6debb68a | 1367 | } |
b73adef6 | 1368 | |
8e92ab3a | 1369 | return err; |
6debb68a | 1370 | } |
b73adef6 | 1371 | |
88e4f0ca VD |
1372 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1373 | unsigned long event, void *ptr) | |
6debb68a VD |
1374 | { |
1375 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1376 | ||
8e92ab3a VD |
1377 | if (dev->netdev_ops != &dsa_slave_netdev_ops) |
1378 | return NOTIFY_DONE; | |
1379 | ||
1380 | if (event == NETDEV_CHANGEUPPER) | |
1381 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1382 | |
b73adef6 FF |
1383 | return NOTIFY_DONE; |
1384 | } | |
88e4f0ca | 1385 | |
c9eb3e0f AS |
1386 | struct dsa_switchdev_event_work { |
1387 | struct work_struct work; | |
1388 | struct switchdev_notifier_fdb_info fdb_info; | |
1389 | struct net_device *dev; | |
1390 | unsigned long event; | |
1391 | }; | |
1392 | ||
1393 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1394 | { | |
1395 | struct dsa_switchdev_event_work *switchdev_work = | |
1396 | container_of(work, struct dsa_switchdev_event_work, work); | |
1397 | struct net_device *dev = switchdev_work->dev; | |
1398 | struct switchdev_notifier_fdb_info *fdb_info; | |
1399 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1400 | int err; | |
1401 | ||
1402 | rtnl_lock(); | |
1403 | switch (switchdev_work->event) { | |
1404 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1405 | fdb_info = &switchdev_work->fdb_info; | |
1406 | err = dsa_port_fdb_add(p->dp, fdb_info->addr, fdb_info->vid); | |
1407 | if (err) { | |
1408 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1409 | break; | |
1410 | } | |
1411 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, | |
1412 | &fdb_info->info); | |
1413 | break; | |
1414 | ||
1415 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1416 | fdb_info = &switchdev_work->fdb_info; | |
1417 | err = dsa_port_fdb_del(p->dp, fdb_info->addr, fdb_info->vid); | |
1418 | if (err) { | |
1419 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1420 | dev_close(dev); | |
1421 | } | |
1422 | break; | |
1423 | } | |
1424 | rtnl_unlock(); | |
1425 | ||
1426 | kfree(switchdev_work->fdb_info.addr); | |
1427 | kfree(switchdev_work); | |
1428 | dev_put(dev); | |
1429 | } | |
1430 | ||
1431 | static int | |
1432 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1433 | switchdev_work, | |
1434 | const struct switchdev_notifier_fdb_info * | |
1435 | fdb_info) | |
1436 | { | |
1437 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1438 | sizeof(switchdev_work->fdb_info)); | |
1439 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1440 | if (!switchdev_work->fdb_info.addr) | |
1441 | return -ENOMEM; | |
1442 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1443 | fdb_info->addr); | |
1444 | return 0; | |
1445 | } | |
1446 | ||
1447 | /* Called under rcu_read_lock() */ | |
1448 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1449 | unsigned long event, void *ptr) | |
1450 | { | |
1451 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1452 | struct dsa_switchdev_event_work *switchdev_work; | |
1453 | ||
1454 | if (!dsa_slave_dev_check(dev)) | |
1455 | return NOTIFY_DONE; | |
1456 | ||
1457 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); | |
1458 | if (!switchdev_work) | |
1459 | return NOTIFY_BAD; | |
1460 | ||
1461 | INIT_WORK(&switchdev_work->work, | |
1462 | dsa_slave_switchdev_event_work); | |
1463 | switchdev_work->dev = dev; | |
1464 | switchdev_work->event = event; | |
1465 | ||
1466 | switch (event) { | |
1467 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1468 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1469 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, | |
1470 | ptr)) | |
1471 | goto err_fdb_work_init; | |
1472 | dev_hold(dev); | |
1473 | break; | |
1474 | default: | |
1475 | kfree(switchdev_work); | |
1476 | return NOTIFY_DONE; | |
1477 | } | |
1478 | ||
1479 | dsa_schedule_work(&switchdev_work->work); | |
1480 | return NOTIFY_OK; | |
1481 | ||
1482 | err_fdb_work_init: | |
1483 | kfree(switchdev_work); | |
1484 | return NOTIFY_BAD; | |
1485 | } | |
1486 | ||
88e4f0ca | 1487 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1488 | .notifier_call = dsa_slave_netdevice_event, |
1489 | }; | |
1490 | ||
1491 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1492 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1493 | }; |
1494 | ||
1495 | int dsa_slave_register_notifier(void) | |
1496 | { | |
c9eb3e0f AS |
1497 | int err; |
1498 | ||
1499 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1500 | if (err) | |
1501 | return err; | |
1502 | ||
1503 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1504 | if (err) | |
1505 | goto err_switchdev_nb; | |
1506 | ||
1507 | return 0; | |
1508 | ||
1509 | err_switchdev_nb: | |
1510 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1511 | return err; | |
88e4f0ca VD |
1512 | } |
1513 | ||
1514 | void dsa_slave_unregister_notifier(void) | |
1515 | { | |
1516 | int err; | |
1517 | ||
c9eb3e0f AS |
1518 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1519 | if (err) | |
1520 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1521 | ||
88e4f0ca VD |
1522 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1523 | if (err) | |
1524 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1525 | } |