]>
Commit | Line | Data |
---|---|---|
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> |
aab9c406 | 16 | #include <linux/phylink.h> |
0d8bcdd3 FF |
17 | #include <linux/of_net.h> |
18 | #include <linux/of_mdio.h> | |
7f854420 | 19 | #include <linux/mdio.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> |
90af1059 | 25 | #include <linux/ptp_classify.h> |
ea5dd34b | 26 | |
91da11f8 LB |
27 | #include "dsa_priv.h" |
28 | ||
f50f2127 FF |
29 | static bool dsa_slave_dev_check(struct net_device *dev); |
30 | ||
91da11f8 LB |
31 | /* slave mii_bus handling ***************************************************/ |
32 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
33 | { | |
34 | struct dsa_switch *ds = bus->priv; | |
35 | ||
0d8bcdd3 | 36 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 37 | return ds->ops->phy_read(ds, addr, reg); |
91da11f8 LB |
38 | |
39 | return 0xffff; | |
40 | } | |
41 | ||
42 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
43 | { | |
44 | struct dsa_switch *ds = bus->priv; | |
45 | ||
0d8bcdd3 | 46 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 47 | return ds->ops->phy_write(ds, addr, reg, val); |
91da11f8 LB |
48 | |
49 | return 0; | |
50 | } | |
51 | ||
52 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
53 | { | |
54 | ds->slave_mii_bus->priv = (void *)ds; | |
55 | ds->slave_mii_bus->name = "dsa slave smi"; | |
56 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
57 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
0b7b498d | 58 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
49463b7f | 59 | ds->dst->index, ds->index); |
c33063d6 | 60 | ds->slave_mii_bus->parent = ds->dev; |
24df8986 | 61 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
62 | } |
63 | ||
64 | ||
65 | /* slave device handling ****************************************************/ | |
abd2be00 | 66 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 | 67 | { |
d0006b00 | 68 | return dsa_slave_to_master(dev)->ifindex; |
c0840801 LB |
69 | } |
70 | ||
91da11f8 LB |
71 | static int dsa_slave_open(struct net_device *dev) |
72 | { | |
d0006b00 | 73 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 74 | struct dsa_port *dp = dsa_slave_to_port(dev); |
df02c6ff LB |
75 | int err; |
76 | ||
77 | if (!(master->flags & IFF_UP)) | |
78 | return -ENETDOWN; | |
79 | ||
8feedbb4 | 80 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 81 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
82 | if (err < 0) |
83 | goto out; | |
84 | } | |
85 | ||
86 | if (dev->flags & IFF_ALLMULTI) { | |
87 | err = dev_set_allmulti(master, 1); | |
88 | if (err < 0) | |
89 | goto del_unicast; | |
90 | } | |
91 | if (dev->flags & IFF_PROMISC) { | |
92 | err = dev_set_promiscuity(master, 1); | |
93 | if (err < 0) | |
94 | goto clear_allmulti; | |
95 | } | |
96 | ||
0115dcd1 | 97 | err = dsa_port_enable(dp, dev->phydev); |
fb8a6a2b VD |
98 | if (err) |
99 | goto clear_promisc; | |
b73adef6 | 100 | |
aab9c406 | 101 | phylink_start(dp->pl); |
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 | |
aab9c406 | 123 | phylink_stop(dp->pl); |
f7f1de51 | 124 | |
0115dcd1 | 125 | dsa_port_disable(dp, dev->phydev); |
6457edfe | 126 | |
df02c6ff | 127 | dev_mc_unsync(master, dev); |
a748ee24 | 128 | dev_uc_unsync(master, dev); |
df02c6ff LB |
129 | if (dev->flags & IFF_ALLMULTI) |
130 | dev_set_allmulti(master, -1); | |
131 | if (dev->flags & IFF_PROMISC) | |
132 | dev_set_promiscuity(master, -1); | |
133 | ||
8feedbb4 | 134 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 135 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 136 | |
91da11f8 LB |
137 | return 0; |
138 | } | |
139 | ||
140 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
141 | { | |
d0006b00 | 142 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
143 | |
144 | if (change & IFF_ALLMULTI) | |
145 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
146 | if (change & IFF_PROMISC) | |
147 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
148 | } | |
149 | ||
150 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
151 | { | |
d0006b00 | 152 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
153 | |
154 | dev_mc_sync(master, dev); | |
a748ee24 | 155 | dev_uc_sync(master, dev); |
91da11f8 LB |
156 | } |
157 | ||
df02c6ff | 158 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 159 | { |
d0006b00 | 160 | struct net_device *master = dsa_slave_to_master(dev); |
df02c6ff LB |
161 | struct sockaddr *addr = a; |
162 | int err; | |
163 | ||
164 | if (!is_valid_ether_addr(addr->sa_data)) | |
165 | return -EADDRNOTAVAIL; | |
166 | ||
167 | if (!(dev->flags & IFF_UP)) | |
168 | goto out; | |
169 | ||
8feedbb4 | 170 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 171 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
172 | if (err < 0) |
173 | return err; | |
174 | } | |
175 | ||
8feedbb4 | 176 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 177 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
178 | |
179 | out: | |
d08f161a | 180 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
181 | |
182 | return 0; | |
183 | } | |
184 | ||
2bedde1a AS |
185 | struct dsa_slave_dump_ctx { |
186 | struct net_device *dev; | |
187 | struct sk_buff *skb; | |
188 | struct netlink_callback *cb; | |
189 | int idx; | |
190 | }; | |
191 | ||
192 | static int | |
193 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
194 | bool is_static, void *data) | |
195 | { | |
196 | struct dsa_slave_dump_ctx *dump = data; | |
197 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
198 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
199 | struct nlmsghdr *nlh; | |
200 | struct ndmsg *ndm; | |
201 | ||
202 | if (dump->idx < dump->cb->args[2]) | |
203 | goto skip; | |
204 | ||
205 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
206 | sizeof(*ndm), NLM_F_MULTI); | |
207 | if (!nlh) | |
208 | return -EMSGSIZE; | |
209 | ||
210 | ndm = nlmsg_data(nlh); | |
211 | ndm->ndm_family = AF_BRIDGE; | |
212 | ndm->ndm_pad1 = 0; | |
213 | ndm->ndm_pad2 = 0; | |
214 | ndm->ndm_flags = NTF_SELF; | |
215 | ndm->ndm_type = 0; | |
216 | ndm->ndm_ifindex = dump->dev->ifindex; | |
217 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
218 | ||
219 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
220 | goto nla_put_failure; | |
221 | ||
222 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
223 | goto nla_put_failure; | |
224 | ||
225 | nlmsg_end(dump->skb, nlh); | |
226 | ||
227 | skip: | |
228 | dump->idx++; | |
229 | return 0; | |
230 | ||
231 | nla_put_failure: | |
232 | nlmsg_cancel(dump->skb, nlh); | |
233 | return -EMSGSIZE; | |
234 | } | |
235 | ||
236 | static int | |
237 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
238 | struct net_device *dev, struct net_device *filter_dev, | |
239 | int *idx) | |
240 | { | |
d945097b | 241 | struct dsa_port *dp = dsa_slave_to_port(dev); |
2bedde1a AS |
242 | struct dsa_slave_dump_ctx dump = { |
243 | .dev = dev, | |
244 | .skb = skb, | |
245 | .cb = cb, | |
246 | .idx = *idx, | |
247 | }; | |
2bedde1a AS |
248 | int err; |
249 | ||
de40fc5d | 250 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 251 | *idx = dump.idx; |
de40fc5d | 252 | |
2bedde1a AS |
253 | return err; |
254 | } | |
255 | ||
91da11f8 LB |
256 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
257 | { | |
0336369d BS |
258 | struct dsa_slave_priv *p = netdev_priv(dev); |
259 | struct dsa_switch *ds = p->dp->ds; | |
260 | int port = p->dp->index; | |
261 | ||
262 | /* Pass through to switch driver if it supports timestamping */ | |
263 | switch (cmd) { | |
264 | case SIOCGHWTSTAMP: | |
265 | if (ds->ops->port_hwtstamp_get) | |
266 | return ds->ops->port_hwtstamp_get(ds, port, ifr); | |
267 | break; | |
268 | case SIOCSHWTSTAMP: | |
269 | if (ds->ops->port_hwtstamp_set) | |
270 | return ds->ops->port_hwtstamp_set(ds, port, ifr); | |
271 | break; | |
272 | } | |
273 | ||
aab9c406 | 274 | return phylink_mii_ioctl(p->dp->pl, ifr, cmd); |
91da11f8 LB |
275 | } |
276 | ||
35636062 | 277 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 278 | const struct switchdev_attr *attr, |
7ea6eb3f | 279 | struct switchdev_trans *trans) |
35636062 | 280 | { |
d945097b | 281 | struct dsa_port *dp = dsa_slave_to_port(dev); |
b8d866ac | 282 | int ret; |
35636062 SF |
283 | |
284 | switch (attr->id) { | |
1f868398 | 285 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 286 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 287 | break; |
fb2dabad | 288 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
289 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
290 | trans); | |
fb2dabad | 291 | break; |
34a79f63 | 292 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 293 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 294 | break; |
35636062 SF |
295 | default: |
296 | ret = -EOPNOTSUPP; | |
297 | break; | |
298 | } | |
299 | ||
300 | return ret; | |
301 | } | |
302 | ||
ba14d9eb | 303 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 304 | const struct switchdev_obj *obj, |
7ea6eb3f | 305 | struct switchdev_trans *trans) |
ba14d9eb | 306 | { |
d945097b | 307 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
308 | int err; |
309 | ||
310 | /* For the prepare phase, ensure the full set of changes is feasable in | |
311 | * one go in order to signal a failure properly. If an operation is not | |
312 | * supported, return -EOPNOTSUPP. | |
313 | */ | |
314 | ||
9e8f4a54 | 315 | switch (obj->id) { |
8df30255 | 316 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 317 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 318 | break; |
5f4dbc50 AL |
319 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
320 | /* DSA can directly translate this to a normal MDB add, | |
321 | * but on the CPU port. | |
322 | */ | |
323 | err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj), | |
324 | trans); | |
325 | break; | |
57d80838 | 326 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
327 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
328 | trans); | |
11149536 | 329 | break; |
ba14d9eb VD |
330 | default: |
331 | err = -EOPNOTSUPP; | |
332 | break; | |
333 | } | |
334 | ||
335 | return err; | |
336 | } | |
337 | ||
338 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 339 | const struct switchdev_obj *obj) |
ba14d9eb | 340 | { |
d945097b | 341 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
342 | int err; |
343 | ||
9e8f4a54 | 344 | switch (obj->id) { |
8df30255 | 345 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 346 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 347 | break; |
5f4dbc50 AL |
348 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
349 | /* DSA can directly translate this to a normal MDB add, | |
350 | * but on the CPU port. | |
351 | */ | |
352 | err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
353 | break; | |
57d80838 | 354 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 355 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 356 | break; |
ba14d9eb VD |
357 | default: |
358 | err = -EOPNOTSUPP; | |
359 | break; | |
360 | } | |
361 | ||
362 | return err; | |
363 | } | |
364 | ||
f8e20a9f SF |
365 | static int dsa_slave_port_attr_get(struct net_device *dev, |
366 | struct switchdev_attr *attr) | |
b73adef6 | 367 | { |
d945097b VD |
368 | struct dsa_port *dp = dsa_slave_to_port(dev); |
369 | struct dsa_switch *ds = dp->ds; | |
a42c8e33 | 370 | struct dsa_switch_tree *dst = ds->dst; |
b73adef6 | 371 | |
f8e20a9f | 372 | switch (attr->id) { |
1f868398 | 373 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
a42c8e33 AL |
374 | attr->u.ppid.id_len = sizeof(dst->index); |
375 | memcpy(&attr->u.ppid.id, &dst->index, attr->u.ppid.id_len); | |
f8e20a9f | 376 | break; |
c9e2105e AS |
377 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT: |
378 | attr->u.brport_flags_support = 0; | |
379 | break; | |
f8e20a9f SF |
380 | default: |
381 | return -EOPNOTSUPP; | |
382 | } | |
b73adef6 FF |
383 | |
384 | return 0; | |
385 | } | |
386 | ||
4fa7b718 VD |
387 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
388 | struct sk_buff *skb) | |
04ff53f9 FF |
389 | { |
390 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
391 | struct dsa_slave_priv *p = netdev_priv(dev); |
392 | ||
04ff53f9 FF |
393 | if (p->netpoll) |
394 | netpoll_send_skb(p->netpoll, skb); | |
395 | #else | |
396 | BUG(); | |
397 | #endif | |
398 | return NETDEV_TX_OK; | |
399 | } | |
400 | ||
90af1059 BS |
401 | static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p, |
402 | struct sk_buff *skb) | |
403 | { | |
404 | struct dsa_switch *ds = p->dp->ds; | |
405 | struct sk_buff *clone; | |
406 | unsigned int type; | |
407 | ||
408 | type = ptp_classify_raw(skb); | |
409 | if (type == PTP_CLASS_NONE) | |
410 | return; | |
411 | ||
412 | if (!ds->ops->port_txtstamp) | |
413 | return; | |
414 | ||
415 | clone = skb_clone_sk(skb); | |
416 | if (!clone) | |
417 | return; | |
418 | ||
419 | if (ds->ops->port_txtstamp(ds, p->dp->index, clone, type)) | |
420 | return; | |
421 | ||
422 | kfree_skb(clone); | |
423 | } | |
424 | ||
3e8a72d1 FF |
425 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
426 | { | |
427 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 428 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 429 | struct sk_buff *nskb; |
3e8a72d1 | 430 | |
5f6b4e14 FF |
431 | s = this_cpu_ptr(p->stats64); |
432 | u64_stats_update_begin(&s->syncp); | |
433 | s->tx_packets++; | |
434 | s->tx_bytes += skb->len; | |
435 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 436 | |
90af1059 BS |
437 | /* Identify PTP protocol packets, clone them, and pass them to the |
438 | * switch driver | |
439 | */ | |
440 | dsa_skb_tx_timestamp(p, skb); | |
441 | ||
fe47d563 VD |
442 | /* Transmit function may have to reallocate the original SKB, |
443 | * in which case it must have freed it. Only free it here on error. | |
444 | */ | |
4ed70ce9 | 445 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
446 | if (!nskb) { |
447 | kfree_skb(skb); | |
4ed70ce9 | 448 | return NETDEV_TX_OK; |
fe47d563 | 449 | } |
5aed85ce | 450 | |
04ff53f9 FF |
451 | /* SKB for netpoll still need to be mangled with the protocol-specific |
452 | * tag to be successfully transmitted | |
453 | */ | |
454 | if (unlikely(netpoll_tx_running(dev))) | |
4fa7b718 | 455 | return dsa_slave_netpoll_send_skb(dev, nskb); |
04ff53f9 | 456 | |
4ed70ce9 FF |
457 | /* Queue the SKB for transmission on the parent interface, but |
458 | * do not modify its EtherType | |
459 | */ | |
d0006b00 | 460 | nskb->dev = dsa_slave_to_master(dev); |
4ed70ce9 | 461 | dev_queue_xmit(nskb); |
5aed85ce FF |
462 | |
463 | return NETDEV_TX_OK; | |
464 | } | |
465 | ||
91da11f8 | 466 | /* ethtool operations *******************************************************/ |
91da11f8 | 467 | |
91da11f8 LB |
468 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
469 | struct ethtool_drvinfo *drvinfo) | |
470 | { | |
7826d43f | 471 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
472 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
473 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
474 | } |
475 | ||
3d762a0f GR |
476 | static int dsa_slave_get_regs_len(struct net_device *dev) |
477 | { | |
d945097b VD |
478 | struct dsa_port *dp = dsa_slave_to_port(dev); |
479 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 480 | |
9d490b4e | 481 | if (ds->ops->get_regs_len) |
d945097b | 482 | return ds->ops->get_regs_len(ds, dp->index); |
3d762a0f GR |
483 | |
484 | return -EOPNOTSUPP; | |
485 | } | |
486 | ||
487 | static void | |
488 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
489 | { | |
d945097b VD |
490 | struct dsa_port *dp = dsa_slave_to_port(dev); |
491 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 492 | |
9d490b4e | 493 | if (ds->ops->get_regs) |
d945097b | 494 | ds->ops->get_regs(ds, dp->index, regs, _p); |
3d762a0f GR |
495 | } |
496 | ||
aab9c406 FF |
497 | static int dsa_slave_nway_reset(struct net_device *dev) |
498 | { | |
499 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
500 | ||
501 | return phylink_ethtool_nway_reset(dp->pl); | |
502 | } | |
503 | ||
6793abb4 GR |
504 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
505 | { | |
d945097b VD |
506 | struct dsa_port *dp = dsa_slave_to_port(dev); |
507 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 508 | |
0e576044 | 509 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 510 | return ds->cd->eeprom_len; |
6793abb4 | 511 | |
9d490b4e VD |
512 | if (ds->ops->get_eeprom_len) |
513 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
514 | |
515 | return 0; | |
516 | } | |
517 | ||
518 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
519 | struct ethtool_eeprom *eeprom, u8 *data) | |
520 | { | |
d945097b VD |
521 | struct dsa_port *dp = dsa_slave_to_port(dev); |
522 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 523 | |
9d490b4e VD |
524 | if (ds->ops->get_eeprom) |
525 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
526 | |
527 | return -EOPNOTSUPP; | |
528 | } | |
529 | ||
530 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
531 | struct ethtool_eeprom *eeprom, u8 *data) | |
532 | { | |
d945097b VD |
533 | struct dsa_port *dp = dsa_slave_to_port(dev); |
534 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 535 | |
9d490b4e VD |
536 | if (ds->ops->set_eeprom) |
537 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
538 | |
539 | return -EOPNOTSUPP; | |
540 | } | |
541 | ||
91da11f8 LB |
542 | static void dsa_slave_get_strings(struct net_device *dev, |
543 | uint32_t stringset, uint8_t *data) | |
544 | { | |
d945097b VD |
545 | struct dsa_port *dp = dsa_slave_to_port(dev); |
546 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
547 | |
548 | if (stringset == ETH_SS_STATS) { | |
549 | int len = ETH_GSTRING_LEN; | |
550 | ||
551 | strncpy(data, "tx_packets", len); | |
552 | strncpy(data + len, "tx_bytes", len); | |
553 | strncpy(data + 2 * len, "rx_packets", len); | |
554 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 555 | if (ds->ops->get_strings) |
89f09048 FF |
556 | ds->ops->get_strings(ds, dp->index, stringset, |
557 | data + 4 * len); | |
91da11f8 LB |
558 | } |
559 | } | |
560 | ||
561 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
562 | struct ethtool_stats *stats, | |
563 | uint64_t *data) | |
564 | { | |
d945097b | 565 | struct dsa_port *dp = dsa_slave_to_port(dev); |
91da11f8 | 566 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 567 | struct dsa_switch *ds = dp->ds; |
5f6b4e14 | 568 | struct pcpu_sw_netstats *s; |
f613ed66 | 569 | unsigned int start; |
5f6b4e14 FF |
570 | int i; |
571 | ||
572 | for_each_possible_cpu(i) { | |
573 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
574 | ||
575 | s = per_cpu_ptr(p->stats64, i); | |
576 | do { | |
577 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
578 | tx_packets = s->tx_packets; | |
579 | tx_bytes = s->tx_bytes; | |
580 | rx_packets = s->rx_packets; | |
581 | rx_bytes = s->rx_bytes; | |
582 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
583 | data[0] += tx_packets; | |
584 | data[1] += tx_bytes; | |
585 | data[2] += rx_packets; | |
586 | data[3] += rx_bytes; | |
587 | } | |
9d490b4e | 588 | if (ds->ops->get_ethtool_stats) |
d945097b | 589 | ds->ops->get_ethtool_stats(ds, dp->index, data + 4); |
91da11f8 LB |
590 | } |
591 | ||
592 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
593 | { | |
d945097b VD |
594 | struct dsa_port *dp = dsa_slave_to_port(dev); |
595 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
596 | |
597 | if (sset == ETH_SS_STATS) { | |
598 | int count; | |
599 | ||
600 | count = 4; | |
9d490b4e | 601 | if (ds->ops->get_sset_count) |
89f09048 | 602 | count += ds->ops->get_sset_count(ds, dp->index, sset); |
91da11f8 LB |
603 | |
604 | return count; | |
605 | } | |
606 | ||
607 | return -EOPNOTSUPP; | |
608 | } | |
609 | ||
19e57c4e FF |
610 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
611 | { | |
d945097b VD |
612 | struct dsa_port *dp = dsa_slave_to_port(dev); |
613 | struct dsa_switch *ds = dp->ds; | |
19e57c4e | 614 | |
aab9c406 FF |
615 | phylink_ethtool_get_wol(dp->pl, w); |
616 | ||
9d490b4e | 617 | if (ds->ops->get_wol) |
d945097b | 618 | ds->ops->get_wol(ds, dp->index, w); |
19e57c4e FF |
619 | } |
620 | ||
621 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
622 | { | |
d945097b VD |
623 | struct dsa_port *dp = dsa_slave_to_port(dev); |
624 | struct dsa_switch *ds = dp->ds; | |
19e57c4e FF |
625 | int ret = -EOPNOTSUPP; |
626 | ||
aab9c406 FF |
627 | phylink_ethtool_set_wol(dp->pl, w); |
628 | ||
9d490b4e | 629 | if (ds->ops->set_wol) |
d945097b | 630 | ret = ds->ops->set_wol(ds, dp->index, w); |
19e57c4e FF |
631 | |
632 | return ret; | |
633 | } | |
634 | ||
7905288f FF |
635 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
636 | { | |
d945097b VD |
637 | struct dsa_port *dp = dsa_slave_to_port(dev); |
638 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
639 | int ret; |
640 | ||
7b9cc738 | 641 | /* Port's PHY and MAC both need to be EEE capable */ |
1be52e97 | 642 | if (!dev->phydev && !dp->pl) |
7b9cc738 VD |
643 | return -ENODEV; |
644 | ||
08f50061 | 645 | if (!ds->ops->set_mac_eee) |
7905288f FF |
646 | return -EOPNOTSUPP; |
647 | ||
d945097b | 648 | ret = ds->ops->set_mac_eee(ds, dp->index, e); |
7905288f FF |
649 | if (ret) |
650 | return ret; | |
651 | ||
aab9c406 | 652 | return phylink_ethtool_set_eee(dp->pl, e); |
7905288f FF |
653 | } |
654 | ||
655 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
656 | { | |
d945097b VD |
657 | struct dsa_port *dp = dsa_slave_to_port(dev); |
658 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
659 | int ret; |
660 | ||
7b9cc738 | 661 | /* Port's PHY and MAC both need to be EEE capable */ |
1be52e97 | 662 | if (!dev->phydev && !dp->pl) |
7b9cc738 VD |
663 | return -ENODEV; |
664 | ||
08f50061 | 665 | if (!ds->ops->get_mac_eee) |
7905288f FF |
666 | return -EOPNOTSUPP; |
667 | ||
d945097b | 668 | ret = ds->ops->get_mac_eee(ds, dp->index, e); |
7905288f FF |
669 | if (ret) |
670 | return ret; | |
671 | ||
aab9c406 FF |
672 | return phylink_ethtool_get_eee(dp->pl, e); |
673 | } | |
674 | ||
675 | static int dsa_slave_get_link_ksettings(struct net_device *dev, | |
676 | struct ethtool_link_ksettings *cmd) | |
677 | { | |
678 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
679 | ||
680 | return phylink_ethtool_ksettings_get(dp->pl, cmd); | |
681 | } | |
682 | ||
683 | static int dsa_slave_set_link_ksettings(struct net_device *dev, | |
684 | const struct ethtool_link_ksettings *cmd) | |
685 | { | |
686 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
687 | ||
688 | return phylink_ethtool_ksettings_set(dp->pl, cmd); | |
7905288f FF |
689 | } |
690 | ||
04ff53f9 FF |
691 | #ifdef CONFIG_NET_POLL_CONTROLLER |
692 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
693 | struct netpoll_info *ni) | |
694 | { | |
d0006b00 | 695 | struct net_device *master = dsa_slave_to_master(dev); |
04ff53f9 | 696 | struct dsa_slave_priv *p = netdev_priv(dev); |
04ff53f9 FF |
697 | struct netpoll *netpoll; |
698 | int err = 0; | |
699 | ||
700 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
701 | if (!netpoll) | |
702 | return -ENOMEM; | |
703 | ||
704 | err = __netpoll_setup(netpoll, master); | |
705 | if (err) { | |
706 | kfree(netpoll); | |
707 | goto out; | |
708 | } | |
709 | ||
710 | p->netpoll = netpoll; | |
711 | out: | |
712 | return err; | |
713 | } | |
714 | ||
715 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
716 | { | |
717 | struct dsa_slave_priv *p = netdev_priv(dev); | |
718 | struct netpoll *netpoll = p->netpoll; | |
719 | ||
720 | if (!netpoll) | |
721 | return; | |
722 | ||
723 | p->netpoll = NULL; | |
724 | ||
725 | __netpoll_free_async(netpoll); | |
726 | } | |
727 | ||
728 | static void dsa_slave_poll_controller(struct net_device *dev) | |
729 | { | |
730 | } | |
731 | #endif | |
732 | ||
44bb765c FF |
733 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
734 | char *name, size_t len) | |
735 | { | |
d945097b | 736 | struct dsa_port *dp = dsa_slave_to_port(dev); |
44bb765c | 737 | |
d945097b | 738 | if (snprintf(name, len, "p%d", dp->index) >= len) |
44bb765c | 739 | return -EINVAL; |
3a543ef4 FF |
740 | |
741 | return 0; | |
742 | } | |
743 | ||
f50f2127 | 744 | static struct dsa_mall_tc_entry * |
4fa7b718 | 745 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 746 | { |
4fa7b718 | 747 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
748 | struct dsa_mall_tc_entry *mall_tc_entry; |
749 | ||
750 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
751 | if (mall_tc_entry->cookie == cookie) | |
752 | return mall_tc_entry; | |
753 | ||
754 | return NULL; | |
755 | } | |
756 | ||
757 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
758 | struct tc_cls_matchall_offload *cls, |
759 | bool ingress) | |
760 | { | |
d945097b | 761 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 FF |
762 | struct dsa_slave_priv *p = netdev_priv(dev); |
763 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 764 | __be16 protocol = cls->common.protocol; |
d945097b | 765 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
766 | struct net_device *to_dev; |
767 | const struct tc_action *a; | |
d945097b | 768 | struct dsa_port *to_dp; |
f50f2127 FF |
769 | int err = -EOPNOTSUPP; |
770 | LIST_HEAD(actions); | |
f50f2127 FF |
771 | |
772 | if (!ds->ops->port_mirror_add) | |
773 | return err; | |
774 | ||
3bcc0cec | 775 | if (!tcf_exts_has_one_action(cls->exts)) |
f50f2127 FF |
776 | return err; |
777 | ||
778 | tcf_exts_to_list(cls->exts, &actions); | |
779 | a = list_first_entry(&actions, struct tc_action, list); | |
780 | ||
781 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
782 | struct dsa_mall_mirror_tc_entry *mirror; | |
783 | ||
9f8a739e | 784 | to_dev = tcf_mirred_dev(a); |
f50f2127 FF |
785 | if (!to_dev) |
786 | return -EINVAL; | |
787 | ||
788 | if (!dsa_slave_dev_check(to_dev)) | |
789 | return -EOPNOTSUPP; | |
790 | ||
791 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
792 | if (!mall_tc_entry) | |
793 | return -ENOMEM; | |
794 | ||
795 | mall_tc_entry->cookie = cls->cookie; | |
796 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
797 | mirror = &mall_tc_entry->mirror; | |
798 | ||
d945097b | 799 | to_dp = dsa_slave_to_port(to_dev); |
f50f2127 | 800 | |
d945097b | 801 | mirror->to_local_port = to_dp->index; |
f50f2127 FF |
802 | mirror->ingress = ingress; |
803 | ||
d945097b | 804 | err = ds->ops->port_mirror_add(ds, dp->index, mirror, ingress); |
f50f2127 FF |
805 | if (err) { |
806 | kfree(mall_tc_entry); | |
807 | return err; | |
808 | } | |
809 | ||
810 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
811 | } | |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
816 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
817 | struct tc_cls_matchall_offload *cls) | |
818 | { | |
d945097b | 819 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 | 820 | struct dsa_mall_tc_entry *mall_tc_entry; |
d945097b | 821 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
822 | |
823 | if (!ds->ops->port_mirror_del) | |
824 | return; | |
825 | ||
4fa7b718 | 826 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
827 | if (!mall_tc_entry) |
828 | return; | |
829 | ||
830 | list_del(&mall_tc_entry->list); | |
831 | ||
832 | switch (mall_tc_entry->type) { | |
833 | case DSA_PORT_MALL_MIRROR: | |
d945097b | 834 | ds->ops->port_mirror_del(ds, dp->index, &mall_tc_entry->mirror); |
f50f2127 FF |
835 | break; |
836 | default: | |
837 | WARN_ON(1); | |
838 | } | |
839 | ||
840 | kfree(mall_tc_entry); | |
841 | } | |
842 | ||
3fbae382 | 843 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
6b3eb752 JP |
844 | struct tc_cls_matchall_offload *cls, |
845 | bool ingress) | |
f50f2127 | 846 | { |
5fd9fc4e | 847 | if (cls->common.chain_index) |
a5fcf8a6 | 848 | return -EOPNOTSUPP; |
f50f2127 | 849 | |
3fbae382 JP |
850 | switch (cls->command) { |
851 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 852 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
853 | case TC_CLSMATCHALL_DESTROY: |
854 | dsa_slave_del_cls_matchall(dev, cls); | |
855 | return 0; | |
856 | default: | |
857 | return -EOPNOTSUPP; | |
858 | } | |
859 | } | |
860 | ||
6b3eb752 JP |
861 | static int dsa_slave_setup_tc_block_cb(enum tc_setup_type type, void *type_data, |
862 | void *cb_priv, bool ingress) | |
863 | { | |
864 | struct net_device *dev = cb_priv; | |
865 | ||
44ae12a7 JP |
866 | if (!tc_can_offload(dev)) |
867 | return -EOPNOTSUPP; | |
868 | ||
6b3eb752 JP |
869 | switch (type) { |
870 | case TC_SETUP_CLSMATCHALL: | |
871 | return dsa_slave_setup_tc_cls_matchall(dev, type_data, ingress); | |
872 | default: | |
873 | return -EOPNOTSUPP; | |
874 | } | |
875 | } | |
876 | ||
877 | static int dsa_slave_setup_tc_block_cb_ig(enum tc_setup_type type, | |
878 | void *type_data, void *cb_priv) | |
879 | { | |
880 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, true); | |
881 | } | |
882 | ||
883 | static int dsa_slave_setup_tc_block_cb_eg(enum tc_setup_type type, | |
884 | void *type_data, void *cb_priv) | |
885 | { | |
886 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, false); | |
887 | } | |
888 | ||
889 | static int dsa_slave_setup_tc_block(struct net_device *dev, | |
890 | struct tc_block_offload *f) | |
891 | { | |
892 | tc_setup_cb_t *cb; | |
893 | ||
894 | if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) | |
895 | cb = dsa_slave_setup_tc_block_cb_ig; | |
896 | else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) | |
897 | cb = dsa_slave_setup_tc_block_cb_eg; | |
898 | else | |
899 | return -EOPNOTSUPP; | |
900 | ||
901 | switch (f->command) { | |
902 | case TC_BLOCK_BIND: | |
60513bd8 | 903 | return tcf_block_cb_register(f->block, cb, dev, dev, f->extack); |
6b3eb752 JP |
904 | case TC_BLOCK_UNBIND: |
905 | tcf_block_cb_unregister(f->block, cb, dev); | |
906 | return 0; | |
907 | default: | |
908 | return -EOPNOTSUPP; | |
909 | } | |
910 | } | |
911 | ||
3fbae382 | 912 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, |
de4784ca | 913 | void *type_data) |
3fbae382 | 914 | { |
2572ac53 | 915 | switch (type) { |
6b3eb752 JP |
916 | case TC_SETUP_BLOCK: |
917 | return dsa_slave_setup_tc_block(dev, type_data); | |
f50f2127 | 918 | default: |
a5fcf8a6 | 919 | return -EOPNOTSUPP; |
f50f2127 | 920 | } |
f50f2127 FF |
921 | } |
922 | ||
f613ed66 FF |
923 | static void dsa_slave_get_stats64(struct net_device *dev, |
924 | struct rtnl_link_stats64 *stats) | |
925 | { | |
926 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 927 | struct pcpu_sw_netstats *s; |
f613ed66 | 928 | unsigned int start; |
5f6b4e14 | 929 | int i; |
f613ed66 FF |
930 | |
931 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
932 | for_each_possible_cpu(i) { |
933 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
934 | ||
935 | s = per_cpu_ptr(p->stats64, i); | |
936 | do { | |
937 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
938 | tx_packets = s->tx_packets; | |
939 | tx_bytes = s->tx_bytes; | |
940 | rx_packets = s->rx_packets; | |
941 | rx_bytes = s->rx_bytes; | |
942 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
943 | ||
944 | stats->tx_packets += tx_packets; | |
945 | stats->tx_bytes += tx_bytes; | |
946 | stats->rx_packets += rx_packets; | |
947 | stats->rx_bytes += rx_bytes; | |
948 | } | |
f613ed66 FF |
949 | } |
950 | ||
bf9f2648 FF |
951 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
952 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
953 | { | |
d945097b VD |
954 | struct dsa_port *dp = dsa_slave_to_port(dev); |
955 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
956 | |
957 | if (!ds->ops->get_rxnfc) | |
958 | return -EOPNOTSUPP; | |
959 | ||
d945097b | 960 | return ds->ops->get_rxnfc(ds, dp->index, nfc, rule_locs); |
bf9f2648 FF |
961 | } |
962 | ||
963 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
964 | struct ethtool_rxnfc *nfc) | |
965 | { | |
d945097b VD |
966 | struct dsa_port *dp = dsa_slave_to_port(dev); |
967 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
968 | |
969 | if (!ds->ops->set_rxnfc) | |
970 | return -EOPNOTSUPP; | |
971 | ||
d945097b | 972 | return ds->ops->set_rxnfc(ds, dp->index, nfc); |
bf9f2648 FF |
973 | } |
974 | ||
0336369d BS |
975 | static int dsa_slave_get_ts_info(struct net_device *dev, |
976 | struct ethtool_ts_info *ts) | |
977 | { | |
978 | struct dsa_slave_priv *p = netdev_priv(dev); | |
979 | struct dsa_switch *ds = p->dp->ds; | |
980 | ||
981 | if (!ds->ops->get_ts_info) | |
982 | return -EOPNOTSUPP; | |
983 | ||
984 | return ds->ops->get_ts_info(ds, p->dp->index, ts); | |
985 | } | |
986 | ||
91da11f8 | 987 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 988 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
989 | .get_regs_len = dsa_slave_get_regs_len, |
990 | .get_regs = dsa_slave_get_regs, | |
aab9c406 | 991 | .nway_reset = dsa_slave_nway_reset, |
c4aef9fc | 992 | .get_link = ethtool_op_get_link, |
6793abb4 GR |
993 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
994 | .get_eeprom = dsa_slave_get_eeprom, | |
995 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
996 | .get_strings = dsa_slave_get_strings, |
997 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
998 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
999 | .set_wol = dsa_slave_set_wol, |
1000 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1001 | .set_eee = dsa_slave_set_eee, |
1002 | .get_eee = dsa_slave_get_eee, | |
aab9c406 FF |
1003 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1004 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
1005 | .get_rxnfc = dsa_slave_get_rxnfc, |
1006 | .set_rxnfc = dsa_slave_set_rxnfc, | |
0336369d | 1007 | .get_ts_info = dsa_slave_get_ts_info, |
91da11f8 LB |
1008 | }; |
1009 | ||
2a93c1a3 FF |
1010 | /* legacy way, bypassing the bridge *****************************************/ |
1011 | int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
1012 | struct net_device *dev, | |
1013 | const unsigned char *addr, u16 vid, | |
1014 | u16 flags) | |
1015 | { | |
1016 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1017 | ||
1018 | return dsa_port_fdb_add(dp, addr, vid); | |
1019 | } | |
1020 | ||
1021 | int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
1022 | struct net_device *dev, | |
1023 | const unsigned char *addr, u16 vid) | |
1024 | { | |
1025 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1026 | ||
1027 | return dsa_port_fdb_del(dp, addr, vid); | |
1028 | } | |
1029 | ||
3e8a72d1 | 1030 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1031 | .ndo_open = dsa_slave_open, |
1032 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1033 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1034 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1035 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1036 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
1037 | .ndo_fdb_add = dsa_legacy_fdb_add, |
1038 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 1039 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 1040 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1041 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1042 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1043 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1044 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1045 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1046 | #endif | |
44bb765c | 1047 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1048 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 1049 | .ndo_get_stats64 = dsa_slave_get_stats64, |
98237d43 SF |
1050 | }; |
1051 | ||
9d47c0a2 | 1052 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 1053 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 1054 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1055 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1056 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
d442ad4a | 1057 | }; |
91da11f8 | 1058 | |
f37db85d FF |
1059 | static struct device_type dsa_type = { |
1060 | .name = "dsa", | |
1061 | }; | |
1062 | ||
aab9c406 FF |
1063 | static void dsa_slave_phylink_validate(struct net_device *dev, |
1064 | unsigned long *supported, | |
1065 | struct phylink_link_state *state) | |
0d8bcdd3 | 1066 | { |
d945097b | 1067 | struct dsa_port *dp = dsa_slave_to_port(dev); |
d945097b | 1068 | struct dsa_switch *ds = dp->ds; |
0d8bcdd3 | 1069 | |
aab9c406 FF |
1070 | if (!ds->ops->phylink_validate) |
1071 | return; | |
0d8bcdd3 | 1072 | |
aab9c406 FF |
1073 | ds->ops->phylink_validate(ds, dp->index, supported, state); |
1074 | } | |
0d8bcdd3 | 1075 | |
aab9c406 FF |
1076 | static int dsa_slave_phylink_mac_link_state(struct net_device *dev, |
1077 | struct phylink_link_state *state) | |
1078 | { | |
1079 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1080 | struct dsa_switch *ds = dp->ds; | |
0d8bcdd3 | 1081 | |
aab9c406 FF |
1082 | /* Only called for SGMII and 802.3z */ |
1083 | if (!ds->ops->phylink_mac_link_state) | |
1084 | return -EOPNOTSUPP; | |
ec9436ba | 1085 | |
aab9c406 | 1086 | return ds->ops->phylink_mac_link_state(ds, dp->index, state); |
0d8bcdd3 FF |
1087 | } |
1088 | ||
aab9c406 FF |
1089 | static void dsa_slave_phylink_mac_config(struct net_device *dev, |
1090 | unsigned int mode, | |
1091 | const struct phylink_link_state *state) | |
ce31b31c | 1092 | { |
aab9c406 FF |
1093 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1094 | struct dsa_switch *ds = dp->ds; | |
1095 | ||
1096 | if (!ds->ops->phylink_mac_config) | |
1097 | return; | |
b71be352 | 1098 | |
aab9c406 FF |
1099 | ds->ops->phylink_mac_config(ds, dp->index, mode, state); |
1100 | } | |
1101 | ||
1102 | static void dsa_slave_phylink_mac_an_restart(struct net_device *dev) | |
1103 | { | |
1104 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1105 | struct dsa_switch *ds = dp->ds; | |
1106 | ||
1107 | if (!ds->ops->phylink_mac_an_restart) | |
1108 | return; | |
1109 | ||
1110 | ds->ops->phylink_mac_an_restart(ds, dp->index); | |
1111 | } | |
1112 | ||
1113 | static void dsa_slave_phylink_mac_link_down(struct net_device *dev, | |
1114 | unsigned int mode, | |
1115 | phy_interface_t interface) | |
1116 | { | |
1117 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1118 | struct dsa_switch *ds = dp->ds; | |
1119 | ||
1120 | if (!ds->ops->phylink_mac_link_down) { | |
1121 | if (ds->ops->adjust_link && dev->phydev) | |
1122 | ds->ops->adjust_link(ds, dp->index, dev->phydev); | |
1123 | return; | |
b71be352 | 1124 | } |
ce31b31c | 1125 | |
aab9c406 FF |
1126 | ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface); |
1127 | } | |
1128 | ||
1129 | static void dsa_slave_phylink_mac_link_up(struct net_device *dev, | |
1130 | unsigned int mode, | |
1131 | phy_interface_t interface, | |
1132 | struct phy_device *phydev) | |
1133 | { | |
1134 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1135 | struct dsa_switch *ds = dp->ds; | |
1136 | ||
1137 | if (!ds->ops->phylink_mac_link_up) { | |
1138 | if (ds->ops->adjust_link && dev->phydev) | |
1139 | ds->ops->adjust_link(ds, dp->index, dev->phydev); | |
1140 | return; | |
1141 | } | |
1142 | ||
1143 | ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev); | |
1144 | } | |
1145 | ||
1146 | static const struct phylink_mac_ops dsa_slave_phylink_mac_ops = { | |
1147 | .validate = dsa_slave_phylink_validate, | |
1148 | .mac_link_state = dsa_slave_phylink_mac_link_state, | |
1149 | .mac_config = dsa_slave_phylink_mac_config, | |
1150 | .mac_an_restart = dsa_slave_phylink_mac_an_restart, | |
1151 | .mac_link_down = dsa_slave_phylink_mac_link_down, | |
1152 | .mac_link_up = dsa_slave_phylink_mac_link_up, | |
1153 | }; | |
1154 | ||
1155 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up) | |
1156 | { | |
1157 | const struct dsa_port *dp = dsa_to_port(ds, port); | |
1158 | ||
1159 | phylink_mac_change(dp->pl, up); | |
1160 | } | |
1161 | EXPORT_SYMBOL_GPL(dsa_port_phylink_mac_change); | |
1162 | ||
1163 | static void dsa_slave_phylink_fixed_state(struct net_device *dev, | |
1164 | struct phylink_link_state *state) | |
1165 | { | |
1166 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1167 | struct dsa_switch *ds = dp->ds; | |
1168 | ||
1169 | /* No need to check that this operation is valid, the callback would | |
1170 | * not be called if it was not. | |
1171 | */ | |
1172 | ds->ops->phylink_fixed_state(ds, dp->index, state); | |
ce31b31c FF |
1173 | } |
1174 | ||
91da11f8 | 1175 | /* slave device setup *******************************************************/ |
4fa7b718 | 1176 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 1177 | { |
d945097b | 1178 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b | 1179 | struct dsa_switch *ds = dp->ds; |
c305c165 | 1180 | |
0115dcd1 VD |
1181 | slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); |
1182 | if (!slave_dev->phydev) { | |
d25b8e74 | 1183 | netdev_err(slave_dev, "no phy at %d\n", addr); |
c305c165 | 1184 | return -ENODEV; |
d25b8e74 | 1185 | } |
c305c165 | 1186 | |
aab9c406 | 1187 | return phylink_connect_phy(dp->pl, slave_dev->phydev); |
11d8f3dd | 1188 | } |
11d8f3dd | 1189 | |
4fa7b718 | 1190 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 1191 | { |
d945097b | 1192 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b VD |
1193 | struct device_node *port_dn = dp->dn; |
1194 | struct dsa_switch *ds = dp->ds; | |
6819563e | 1195 | u32 phy_flags = 0; |
19334920 | 1196 | int mode, ret; |
0d8bcdd3 | 1197 | |
19334920 GR |
1198 | mode = of_get_phy_mode(port_dn); |
1199 | if (mode < 0) | |
1200 | mode = PHY_INTERFACE_MODE_NA; | |
0d8bcdd3 | 1201 | |
aab9c406 FF |
1202 | dp->pl = phylink_create(slave_dev, of_fwnode_handle(port_dn), mode, |
1203 | &dsa_slave_phylink_mac_ops); | |
1204 | if (IS_ERR(dp->pl)) { | |
1205 | netdev_err(slave_dev, | |
1206 | "error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); | |
1207 | return PTR_ERR(dp->pl); | |
0d8bcdd3 FF |
1208 | } |
1209 | ||
aab9c406 FF |
1210 | /* Register only if the switch provides such a callback, since this |
1211 | * callback takes precedence over polling the link GPIO in PHYLINK | |
1212 | * (see phylink_get_fixed_state). | |
1213 | */ | |
1214 | if (ds->ops->phylink_fixed_state) | |
1215 | phylink_fixed_state_cb(dp->pl, dsa_slave_phylink_fixed_state); | |
1216 | ||
9d490b4e | 1217 | if (ds->ops->get_phy_flags) |
d945097b | 1218 | phy_flags = ds->ops->get_phy_flags(ds, dp->index); |
6819563e | 1219 | |
aab9c406 FF |
1220 | ret = phylink_of_phy_connect(dp->pl, port_dn, phy_flags); |
1221 | if (ret == -ENODEV) { | |
1222 | /* We could not connect to a designated PHY or SFP, so use the | |
1223 | * switch internal MDIO bus instead | |
1224 | */ | |
d945097b | 1225 | ret = dsa_slave_phy_connect(slave_dev, dp->index); |
d25b8e74 | 1226 | if (ret) { |
aab9c406 FF |
1227 | netdev_err(slave_dev, |
1228 | "failed to connect to port %d: %d\n", | |
d945097b | 1229 | dp->index, ret); |
aab9c406 | 1230 | phylink_destroy(dp->pl); |
c305c165 | 1231 | return ret; |
d25b8e74 | 1232 | } |
b31f65fb | 1233 | } |
9697f1cd FF |
1234 | |
1235 | return 0; | |
0d8bcdd3 FF |
1236 | } |
1237 | ||
448b4482 AL |
1238 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1239 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1240 | struct netdev_queue *txq, | |
1241 | void *_unused) | |
1242 | { | |
1243 | lockdep_set_class(&txq->_xmit_lock, | |
1244 | &dsa_slave_netdev_xmit_lock_key); | |
1245 | } | |
1246 | ||
24462549 FF |
1247 | int dsa_slave_suspend(struct net_device *slave_dev) |
1248 | { | |
aab9c406 | 1249 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
24462549 | 1250 | |
a94c689e FF |
1251 | if (!netif_running(slave_dev)) |
1252 | return 0; | |
1253 | ||
f154be24 FF |
1254 | netif_device_detach(slave_dev); |
1255 | ||
aab9c406 FF |
1256 | rtnl_lock(); |
1257 | phylink_stop(dp->pl); | |
1258 | rtnl_unlock(); | |
24462549 FF |
1259 | |
1260 | return 0; | |
1261 | } | |
1262 | ||
1263 | int dsa_slave_resume(struct net_device *slave_dev) | |
1264 | { | |
aab9c406 FF |
1265 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
1266 | ||
a94c689e FF |
1267 | if (!netif_running(slave_dev)) |
1268 | return 0; | |
1269 | ||
24462549 FF |
1270 | netif_device_attach(slave_dev); |
1271 | ||
aab9c406 FF |
1272 | rtnl_lock(); |
1273 | phylink_start(dp->pl); | |
1274 | rtnl_unlock(); | |
24462549 FF |
1275 | |
1276 | return 0; | |
1277 | } | |
1278 | ||
6158eaa7 VD |
1279 | static void dsa_slave_notify(struct net_device *dev, unsigned long val) |
1280 | { | |
d0006b00 | 1281 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 1282 | struct dsa_port *dp = dsa_slave_to_port(dev); |
6158eaa7 VD |
1283 | struct dsa_notifier_register_info rinfo = { |
1284 | .switch_number = dp->ds->index, | |
1285 | .port_number = dp->index, | |
1286 | .master = master, | |
1287 | .info.dev = dev, | |
1288 | }; | |
1289 | ||
1290 | call_dsa_notifiers(val, dev, &rinfo.info); | |
1291 | } | |
1292 | ||
951259aa | 1293 | int dsa_slave_create(struct dsa_port *port) |
91da11f8 | 1294 | { |
24a9332a | 1295 | const struct dsa_port *cpu_dp = port->cpu_dp; |
f8b8b1cd | 1296 | struct net_device *master = cpu_dp->master; |
4cfbf09c | 1297 | struct dsa_switch *ds = port->ds; |
951259aa | 1298 | const char *name = port->name; |
91da11f8 LB |
1299 | struct net_device *slave_dev; |
1300 | struct dsa_slave_priv *p; | |
1301 | int ret; | |
1302 | ||
55199df6 FF |
1303 | if (!ds->num_tx_queues) |
1304 | ds->num_tx_queues = 1; | |
1305 | ||
1306 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1307 | NET_NAME_UNKNOWN, ether_setup, | |
1308 | ds->num_tx_queues, 1); | |
91da11f8 | 1309 | if (slave_dev == NULL) |
d87d6f44 | 1310 | return -ENOMEM; |
91da11f8 | 1311 | |
f50f2127 FF |
1312 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1313 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1314 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1315 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1316 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1317 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1318 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1319 | slave_dev->min_mtu = 0; |
1320 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1321 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1322 | |
448b4482 AL |
1323 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1324 | NULL); | |
1325 | ||
4cfbf09c VD |
1326 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1327 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1328 | slave_dev->vlan_features = master->vlan_features; |
1329 | ||
1330 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1331 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1332 | if (!p->stats64) { | |
1333 | free_netdev(slave_dev); | |
1334 | return -ENOMEM; | |
1335 | } | |
4cfbf09c | 1336 | p->dp = port; |
f50f2127 | 1337 | INIT_LIST_HEAD(&p->mall_tc_list); |
15240248 | 1338 | p->xmit = cpu_dp->tag_ops->xmit; |
f8b8b1cd | 1339 | port->slave = slave_dev; |
91da11f8 LB |
1340 | |
1341 | netif_carrier_off(slave_dev); | |
1342 | ||
4fa7b718 | 1343 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1344 | if (ret) { |
1345 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
e804441c FF |
1346 | goto out_free; |
1347 | } | |
1348 | ||
6158eaa7 | 1349 | dsa_slave_notify(slave_dev, DSA_PORT_REGISTER); |
60724d4b | 1350 | |
e804441c FF |
1351 | ret = register_netdev(slave_dev); |
1352 | if (ret) { | |
1353 | netdev_err(master, "error %d registering interface %s\n", | |
1354 | ret, slave_dev->name); | |
1355 | goto out_phy; | |
0071f56e AL |
1356 | } |
1357 | ||
d87d6f44 | 1358 | return 0; |
e804441c FF |
1359 | |
1360 | out_phy: | |
aab9c406 FF |
1361 | rtnl_lock(); |
1362 | phylink_disconnect_phy(p->dp->pl); | |
1363 | rtnl_unlock(); | |
1364 | phylink_destroy(p->dp->pl); | |
e804441c FF |
1365 | out_free: |
1366 | free_percpu(p->stats64); | |
1367 | free_netdev(slave_dev); | |
f8b8b1cd | 1368 | port->slave = NULL; |
e804441c | 1369 | return ret; |
91da11f8 | 1370 | } |
b73adef6 | 1371 | |
cda5c15b NA |
1372 | void dsa_slave_destroy(struct net_device *slave_dev) |
1373 | { | |
d945097b | 1374 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
cda5c15b NA |
1375 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
1376 | ||
1377 | netif_carrier_off(slave_dev); | |
aab9c406 FF |
1378 | rtnl_lock(); |
1379 | phylink_disconnect_phy(dp->pl); | |
1380 | rtnl_unlock(); | |
881eadab | 1381 | |
6158eaa7 | 1382 | dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER); |
cda5c15b | 1383 | unregister_netdev(slave_dev); |
aab9c406 | 1384 | phylink_destroy(dp->pl); |
5f6b4e14 | 1385 | free_percpu(p->stats64); |
cda5c15b NA |
1386 | free_netdev(slave_dev); |
1387 | } | |
1388 | ||
b73adef6 FF |
1389 | static bool dsa_slave_dev_check(struct net_device *dev) |
1390 | { | |
1391 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1392 | } | |
1393 | ||
8e92ab3a VD |
1394 | static int dsa_slave_changeupper(struct net_device *dev, |
1395 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1396 | { |
d945097b | 1397 | struct dsa_port *dp = dsa_slave_to_port(dev); |
8e92ab3a | 1398 | int err = NOTIFY_DONE; |
b73adef6 | 1399 | |
8e92ab3a VD |
1400 | if (netif_is_bridge_master(info->upper_dev)) { |
1401 | if (info->linking) { | |
17d7802b | 1402 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1403 | err = notifier_from_errno(err); |
1404 | } else { | |
17d7802b | 1405 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1406 | err = NOTIFY_OK; |
6debb68a | 1407 | } |
6debb68a | 1408 | } |
b73adef6 | 1409 | |
8e92ab3a | 1410 | return err; |
6debb68a | 1411 | } |
b73adef6 | 1412 | |
88e4f0ca VD |
1413 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1414 | unsigned long event, void *ptr) | |
6debb68a VD |
1415 | { |
1416 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1417 | ||
53bade8a | 1418 | if (!dsa_slave_dev_check(dev)) |
8e92ab3a VD |
1419 | return NOTIFY_DONE; |
1420 | ||
1421 | if (event == NETDEV_CHANGEUPPER) | |
1422 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1423 | |
b73adef6 FF |
1424 | return NOTIFY_DONE; |
1425 | } | |
88e4f0ca | 1426 | |
c9eb3e0f AS |
1427 | struct dsa_switchdev_event_work { |
1428 | struct work_struct work; | |
1429 | struct switchdev_notifier_fdb_info fdb_info; | |
1430 | struct net_device *dev; | |
1431 | unsigned long event; | |
1432 | }; | |
1433 | ||
1434 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1435 | { | |
1436 | struct dsa_switchdev_event_work *switchdev_work = | |
1437 | container_of(work, struct dsa_switchdev_event_work, work); | |
1438 | struct net_device *dev = switchdev_work->dev; | |
1439 | struct switchdev_notifier_fdb_info *fdb_info; | |
d945097b | 1440 | struct dsa_port *dp = dsa_slave_to_port(dev); |
c9eb3e0f AS |
1441 | int err; |
1442 | ||
1443 | rtnl_lock(); | |
1444 | switch (switchdev_work->event) { | |
1445 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1446 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1447 | if (!fdb_info->added_by_user) |
1448 | break; | |
1449 | ||
d945097b | 1450 | err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1451 | if (err) { |
1452 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1453 | break; | |
1454 | } | |
1455 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, | |
1456 | &fdb_info->info); | |
1457 | break; | |
1458 | ||
1459 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1460 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1461 | if (!fdb_info->added_by_user) |
1462 | break; | |
1463 | ||
d945097b | 1464 | err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1465 | if (err) { |
1466 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1467 | dev_close(dev); | |
1468 | } | |
1469 | break; | |
1470 | } | |
1471 | rtnl_unlock(); | |
1472 | ||
1473 | kfree(switchdev_work->fdb_info.addr); | |
1474 | kfree(switchdev_work); | |
1475 | dev_put(dev); | |
1476 | } | |
1477 | ||
1478 | static int | |
1479 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1480 | switchdev_work, | |
1481 | const struct switchdev_notifier_fdb_info * | |
1482 | fdb_info) | |
1483 | { | |
1484 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1485 | sizeof(switchdev_work->fdb_info)); | |
1486 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1487 | if (!switchdev_work->fdb_info.addr) | |
1488 | return -ENOMEM; | |
1489 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1490 | fdb_info->addr); | |
1491 | return 0; | |
1492 | } | |
1493 | ||
1494 | /* Called under rcu_read_lock() */ | |
1495 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1496 | unsigned long event, void *ptr) | |
1497 | { | |
1498 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1499 | struct dsa_switchdev_event_work *switchdev_work; | |
1500 | ||
1501 | if (!dsa_slave_dev_check(dev)) | |
1502 | return NOTIFY_DONE; | |
1503 | ||
1504 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); | |
1505 | if (!switchdev_work) | |
1506 | return NOTIFY_BAD; | |
1507 | ||
1508 | INIT_WORK(&switchdev_work->work, | |
1509 | dsa_slave_switchdev_event_work); | |
1510 | switchdev_work->dev = dev; | |
1511 | switchdev_work->event = event; | |
1512 | ||
1513 | switch (event) { | |
1514 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1515 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
a37fb855 | 1516 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, ptr)) |
c9eb3e0f AS |
1517 | goto err_fdb_work_init; |
1518 | dev_hold(dev); | |
1519 | break; | |
1520 | default: | |
1521 | kfree(switchdev_work); | |
1522 | return NOTIFY_DONE; | |
1523 | } | |
1524 | ||
1525 | dsa_schedule_work(&switchdev_work->work); | |
1526 | return NOTIFY_OK; | |
1527 | ||
1528 | err_fdb_work_init: | |
1529 | kfree(switchdev_work); | |
1530 | return NOTIFY_BAD; | |
1531 | } | |
1532 | ||
88e4f0ca | 1533 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1534 | .notifier_call = dsa_slave_netdevice_event, |
1535 | }; | |
1536 | ||
1537 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1538 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1539 | }; |
1540 | ||
1541 | int dsa_slave_register_notifier(void) | |
1542 | { | |
c9eb3e0f AS |
1543 | int err; |
1544 | ||
1545 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1546 | if (err) | |
1547 | return err; | |
1548 | ||
1549 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1550 | if (err) | |
1551 | goto err_switchdev_nb; | |
1552 | ||
1553 | return 0; | |
1554 | ||
1555 | err_switchdev_nb: | |
1556 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1557 | return err; | |
88e4f0ca VD |
1558 | } |
1559 | ||
1560 | void dsa_slave_unregister_notifier(void) | |
1561 | { | |
1562 | int err; | |
1563 | ||
c9eb3e0f AS |
1564 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1565 | if (err) | |
1566 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1567 | ||
88e4f0ca VD |
1568 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1569 | if (err) | |
1570 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1571 | } |