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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> |
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 | |
75104db0 | 125 | dsa_port_disable(dp); |
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); |
17ab4f61 RG |
143 | if (dev->flags & IFF_UP) { |
144 | if (change & IFF_ALLMULTI) | |
145 | dev_set_allmulti(master, | |
146 | dev->flags & IFF_ALLMULTI ? 1 : -1); | |
147 | if (change & IFF_PROMISC) | |
148 | dev_set_promiscuity(master, | |
149 | dev->flags & IFF_PROMISC ? 1 : -1); | |
150 | } | |
91da11f8 LB |
151 | } |
152 | ||
153 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
154 | { | |
d0006b00 | 155 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
156 | |
157 | dev_mc_sync(master, dev); | |
a748ee24 | 158 | dev_uc_sync(master, dev); |
91da11f8 LB |
159 | } |
160 | ||
df02c6ff | 161 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 162 | { |
d0006b00 | 163 | struct net_device *master = dsa_slave_to_master(dev); |
df02c6ff LB |
164 | struct sockaddr *addr = a; |
165 | int err; | |
166 | ||
167 | if (!is_valid_ether_addr(addr->sa_data)) | |
168 | return -EADDRNOTAVAIL; | |
169 | ||
170 | if (!(dev->flags & IFF_UP)) | |
171 | goto out; | |
172 | ||
8feedbb4 | 173 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 174 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
175 | if (err < 0) |
176 | return err; | |
177 | } | |
178 | ||
8feedbb4 | 179 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 180 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
181 | |
182 | out: | |
d08f161a | 183 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
184 | |
185 | return 0; | |
186 | } | |
187 | ||
2bedde1a AS |
188 | struct dsa_slave_dump_ctx { |
189 | struct net_device *dev; | |
190 | struct sk_buff *skb; | |
191 | struct netlink_callback *cb; | |
192 | int idx; | |
193 | }; | |
194 | ||
195 | static int | |
196 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
197 | bool is_static, void *data) | |
198 | { | |
199 | struct dsa_slave_dump_ctx *dump = data; | |
200 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
201 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
202 | struct nlmsghdr *nlh; | |
203 | struct ndmsg *ndm; | |
204 | ||
205 | if (dump->idx < dump->cb->args[2]) | |
206 | goto skip; | |
207 | ||
208 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
209 | sizeof(*ndm), NLM_F_MULTI); | |
210 | if (!nlh) | |
211 | return -EMSGSIZE; | |
212 | ||
213 | ndm = nlmsg_data(nlh); | |
214 | ndm->ndm_family = AF_BRIDGE; | |
215 | ndm->ndm_pad1 = 0; | |
216 | ndm->ndm_pad2 = 0; | |
217 | ndm->ndm_flags = NTF_SELF; | |
218 | ndm->ndm_type = 0; | |
219 | ndm->ndm_ifindex = dump->dev->ifindex; | |
220 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
221 | ||
222 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
223 | goto nla_put_failure; | |
224 | ||
225 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
226 | goto nla_put_failure; | |
227 | ||
228 | nlmsg_end(dump->skb, nlh); | |
229 | ||
230 | skip: | |
231 | dump->idx++; | |
232 | return 0; | |
233 | ||
234 | nla_put_failure: | |
235 | nlmsg_cancel(dump->skb, nlh); | |
236 | return -EMSGSIZE; | |
237 | } | |
238 | ||
239 | static int | |
240 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
241 | struct net_device *dev, struct net_device *filter_dev, | |
242 | int *idx) | |
243 | { | |
d945097b | 244 | struct dsa_port *dp = dsa_slave_to_port(dev); |
2bedde1a AS |
245 | struct dsa_slave_dump_ctx dump = { |
246 | .dev = dev, | |
247 | .skb = skb, | |
248 | .cb = cb, | |
249 | .idx = *idx, | |
250 | }; | |
2bedde1a AS |
251 | int err; |
252 | ||
de40fc5d | 253 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 254 | *idx = dump.idx; |
de40fc5d | 255 | |
2bedde1a AS |
256 | return err; |
257 | } | |
258 | ||
91da11f8 LB |
259 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
260 | { | |
0336369d BS |
261 | struct dsa_slave_priv *p = netdev_priv(dev); |
262 | struct dsa_switch *ds = p->dp->ds; | |
263 | int port = p->dp->index; | |
264 | ||
265 | /* Pass through to switch driver if it supports timestamping */ | |
266 | switch (cmd) { | |
267 | case SIOCGHWTSTAMP: | |
268 | if (ds->ops->port_hwtstamp_get) | |
269 | return ds->ops->port_hwtstamp_get(ds, port, ifr); | |
270 | break; | |
271 | case SIOCSHWTSTAMP: | |
272 | if (ds->ops->port_hwtstamp_set) | |
273 | return ds->ops->port_hwtstamp_set(ds, port, ifr); | |
274 | break; | |
275 | } | |
276 | ||
aab9c406 | 277 | return phylink_mii_ioctl(p->dp->pl, ifr, cmd); |
91da11f8 LB |
278 | } |
279 | ||
35636062 | 280 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 281 | const struct switchdev_attr *attr, |
7ea6eb3f | 282 | struct switchdev_trans *trans) |
35636062 | 283 | { |
d945097b | 284 | struct dsa_port *dp = dsa_slave_to_port(dev); |
b8d866ac | 285 | int ret; |
35636062 SF |
286 | |
287 | switch (attr->id) { | |
1f868398 | 288 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 289 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 290 | break; |
fb2dabad | 291 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
292 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
293 | trans); | |
fb2dabad | 294 | break; |
34a79f63 | 295 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 296 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 297 | break; |
ea87005a FF |
298 | case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: |
299 | ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags, | |
300 | trans); | |
301 | break; | |
57652796 RK |
302 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
303 | ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans); | |
304 | break; | |
35636062 SF |
305 | default: |
306 | ret = -EOPNOTSUPP; | |
307 | break; | |
308 | } | |
309 | ||
310 | return ret; | |
311 | } | |
312 | ||
ba14d9eb | 313 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 314 | const struct switchdev_obj *obj, |
7ea6eb3f | 315 | struct switchdev_trans *trans) |
ba14d9eb | 316 | { |
d945097b | 317 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
318 | int err; |
319 | ||
320 | /* For the prepare phase, ensure the full set of changes is feasable in | |
321 | * one go in order to signal a failure properly. If an operation is not | |
322 | * supported, return -EOPNOTSUPP. | |
323 | */ | |
324 | ||
9e8f4a54 | 325 | switch (obj->id) { |
8df30255 | 326 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 327 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 328 | break; |
5f4dbc50 AL |
329 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
330 | /* DSA can directly translate this to a normal MDB add, | |
331 | * but on the CPU port. | |
332 | */ | |
333 | err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj), | |
334 | trans); | |
335 | break; | |
57d80838 | 336 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
337 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
338 | trans); | |
11149536 | 339 | break; |
ba14d9eb VD |
340 | default: |
341 | err = -EOPNOTSUPP; | |
342 | break; | |
343 | } | |
344 | ||
345 | return err; | |
346 | } | |
347 | ||
348 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 349 | const struct switchdev_obj *obj) |
ba14d9eb | 350 | { |
d945097b | 351 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
352 | int err; |
353 | ||
9e8f4a54 | 354 | switch (obj->id) { |
8df30255 | 355 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 356 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 357 | break; |
5f4dbc50 AL |
358 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
359 | /* DSA can directly translate this to a normal MDB add, | |
360 | * but on the CPU port. | |
361 | */ | |
362 | err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
363 | break; | |
57d80838 | 364 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 365 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 366 | break; |
ba14d9eb VD |
367 | default: |
368 | err = -EOPNOTSUPP; | |
369 | break; | |
370 | } | |
371 | ||
372 | return err; | |
373 | } | |
374 | ||
929d6c14 FF |
375 | static int dsa_slave_get_port_parent_id(struct net_device *dev, |
376 | struct netdev_phys_item_id *ppid) | |
b73adef6 | 377 | { |
d945097b VD |
378 | struct dsa_port *dp = dsa_slave_to_port(dev); |
379 | struct dsa_switch *ds = dp->ds; | |
a42c8e33 | 380 | struct dsa_switch_tree *dst = ds->dst; |
b73adef6 | 381 | |
15b04ace JP |
382 | /* For non-legacy ports, devlink is used and it takes |
383 | * care of the name generation. This ndo implementation | |
384 | * should be removed with legacy support. | |
385 | */ | |
386 | if (dp->ds->devlink) | |
387 | return -EOPNOTSUPP; | |
388 | ||
929d6c14 FF |
389 | ppid->id_len = sizeof(dst->index); |
390 | memcpy(&ppid->id, &dst->index, ppid->id_len); | |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
4fa7b718 VD |
395 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
396 | struct sk_buff *skb) | |
04ff53f9 FF |
397 | { |
398 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
399 | struct dsa_slave_priv *p = netdev_priv(dev); |
400 | ||
04ff53f9 FF |
401 | if (p->netpoll) |
402 | netpoll_send_skb(p->netpoll, skb); | |
403 | #else | |
404 | BUG(); | |
405 | #endif | |
406 | return NETDEV_TX_OK; | |
407 | } | |
408 | ||
90af1059 BS |
409 | static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p, |
410 | struct sk_buff *skb) | |
411 | { | |
412 | struct dsa_switch *ds = p->dp->ds; | |
413 | struct sk_buff *clone; | |
414 | unsigned int type; | |
415 | ||
416 | type = ptp_classify_raw(skb); | |
417 | if (type == PTP_CLASS_NONE) | |
418 | return; | |
419 | ||
420 | if (!ds->ops->port_txtstamp) | |
421 | return; | |
422 | ||
423 | clone = skb_clone_sk(skb); | |
424 | if (!clone) | |
425 | return; | |
426 | ||
427 | if (ds->ops->port_txtstamp(ds, p->dp->index, clone, type)) | |
428 | return; | |
429 | ||
430 | kfree_skb(clone); | |
431 | } | |
432 | ||
3e8a72d1 FF |
433 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
434 | { | |
435 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 436 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 437 | struct sk_buff *nskb; |
3e8a72d1 | 438 | |
5f6b4e14 FF |
439 | s = this_cpu_ptr(p->stats64); |
440 | u64_stats_update_begin(&s->syncp); | |
441 | s->tx_packets++; | |
442 | s->tx_bytes += skb->len; | |
443 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 444 | |
90af1059 BS |
445 | /* Identify PTP protocol packets, clone them, and pass them to the |
446 | * switch driver | |
447 | */ | |
448 | dsa_skb_tx_timestamp(p, skb); | |
449 | ||
fe47d563 VD |
450 | /* Transmit function may have to reallocate the original SKB, |
451 | * in which case it must have freed it. Only free it here on error. | |
452 | */ | |
4ed70ce9 | 453 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
454 | if (!nskb) { |
455 | kfree_skb(skb); | |
4ed70ce9 | 456 | return NETDEV_TX_OK; |
fe47d563 | 457 | } |
5aed85ce | 458 | |
04ff53f9 FF |
459 | /* SKB for netpoll still need to be mangled with the protocol-specific |
460 | * tag to be successfully transmitted | |
461 | */ | |
462 | if (unlikely(netpoll_tx_running(dev))) | |
4fa7b718 | 463 | return dsa_slave_netpoll_send_skb(dev, nskb); |
04ff53f9 | 464 | |
4ed70ce9 FF |
465 | /* Queue the SKB for transmission on the parent interface, but |
466 | * do not modify its EtherType | |
467 | */ | |
d0006b00 | 468 | nskb->dev = dsa_slave_to_master(dev); |
4ed70ce9 | 469 | dev_queue_xmit(nskb); |
5aed85ce FF |
470 | |
471 | return NETDEV_TX_OK; | |
472 | } | |
473 | ||
91da11f8 | 474 | /* ethtool operations *******************************************************/ |
91da11f8 | 475 | |
91da11f8 LB |
476 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
477 | struct ethtool_drvinfo *drvinfo) | |
478 | { | |
7826d43f | 479 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
480 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
481 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
482 | } |
483 | ||
3d762a0f GR |
484 | static int dsa_slave_get_regs_len(struct net_device *dev) |
485 | { | |
d945097b VD |
486 | struct dsa_port *dp = dsa_slave_to_port(dev); |
487 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 488 | |
9d490b4e | 489 | if (ds->ops->get_regs_len) |
d945097b | 490 | return ds->ops->get_regs_len(ds, dp->index); |
3d762a0f GR |
491 | |
492 | return -EOPNOTSUPP; | |
493 | } | |
494 | ||
495 | static void | |
496 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
497 | { | |
d945097b VD |
498 | struct dsa_port *dp = dsa_slave_to_port(dev); |
499 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 500 | |
9d490b4e | 501 | if (ds->ops->get_regs) |
d945097b | 502 | ds->ops->get_regs(ds, dp->index, regs, _p); |
3d762a0f GR |
503 | } |
504 | ||
aab9c406 FF |
505 | static int dsa_slave_nway_reset(struct net_device *dev) |
506 | { | |
507 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
508 | ||
509 | return phylink_ethtool_nway_reset(dp->pl); | |
510 | } | |
511 | ||
6793abb4 GR |
512 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
513 | { | |
d945097b VD |
514 | struct dsa_port *dp = dsa_slave_to_port(dev); |
515 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 516 | |
0e576044 | 517 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 518 | return ds->cd->eeprom_len; |
6793abb4 | 519 | |
9d490b4e VD |
520 | if (ds->ops->get_eeprom_len) |
521 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
522 | |
523 | return 0; | |
524 | } | |
525 | ||
526 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
527 | struct ethtool_eeprom *eeprom, u8 *data) | |
528 | { | |
d945097b VD |
529 | struct dsa_port *dp = dsa_slave_to_port(dev); |
530 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 531 | |
9d490b4e VD |
532 | if (ds->ops->get_eeprom) |
533 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
534 | |
535 | return -EOPNOTSUPP; | |
536 | } | |
537 | ||
538 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
539 | struct ethtool_eeprom *eeprom, u8 *data) | |
540 | { | |
d945097b VD |
541 | struct dsa_port *dp = dsa_slave_to_port(dev); |
542 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 543 | |
9d490b4e VD |
544 | if (ds->ops->set_eeprom) |
545 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
546 | |
547 | return -EOPNOTSUPP; | |
548 | } | |
549 | ||
91da11f8 LB |
550 | static void dsa_slave_get_strings(struct net_device *dev, |
551 | uint32_t stringset, uint8_t *data) | |
552 | { | |
d945097b VD |
553 | struct dsa_port *dp = dsa_slave_to_port(dev); |
554 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
555 | |
556 | if (stringset == ETH_SS_STATS) { | |
557 | int len = ETH_GSTRING_LEN; | |
558 | ||
559 | strncpy(data, "tx_packets", len); | |
560 | strncpy(data + len, "tx_bytes", len); | |
561 | strncpy(data + 2 * len, "rx_packets", len); | |
562 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 563 | if (ds->ops->get_strings) |
89f09048 FF |
564 | ds->ops->get_strings(ds, dp->index, stringset, |
565 | data + 4 * len); | |
91da11f8 LB |
566 | } |
567 | } | |
568 | ||
569 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
570 | struct ethtool_stats *stats, | |
571 | uint64_t *data) | |
572 | { | |
d945097b | 573 | struct dsa_port *dp = dsa_slave_to_port(dev); |
91da11f8 | 574 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 575 | struct dsa_switch *ds = dp->ds; |
5f6b4e14 | 576 | struct pcpu_sw_netstats *s; |
f613ed66 | 577 | unsigned int start; |
5f6b4e14 FF |
578 | int i; |
579 | ||
580 | for_each_possible_cpu(i) { | |
581 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
582 | ||
583 | s = per_cpu_ptr(p->stats64, i); | |
584 | do { | |
585 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
586 | tx_packets = s->tx_packets; | |
587 | tx_bytes = s->tx_bytes; | |
588 | rx_packets = s->rx_packets; | |
589 | rx_bytes = s->rx_bytes; | |
590 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
591 | data[0] += tx_packets; | |
592 | data[1] += tx_bytes; | |
593 | data[2] += rx_packets; | |
594 | data[3] += rx_bytes; | |
595 | } | |
9d490b4e | 596 | if (ds->ops->get_ethtool_stats) |
d945097b | 597 | ds->ops->get_ethtool_stats(ds, dp->index, data + 4); |
91da11f8 LB |
598 | } |
599 | ||
600 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
601 | { | |
d945097b VD |
602 | struct dsa_port *dp = dsa_slave_to_port(dev); |
603 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
604 | |
605 | if (sset == ETH_SS_STATS) { | |
606 | int count; | |
607 | ||
608 | count = 4; | |
9d490b4e | 609 | if (ds->ops->get_sset_count) |
89f09048 | 610 | count += ds->ops->get_sset_count(ds, dp->index, sset); |
91da11f8 LB |
611 | |
612 | return count; | |
613 | } | |
614 | ||
615 | return -EOPNOTSUPP; | |
616 | } | |
617 | ||
19e57c4e FF |
618 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
619 | { | |
d945097b VD |
620 | struct dsa_port *dp = dsa_slave_to_port(dev); |
621 | struct dsa_switch *ds = dp->ds; | |
19e57c4e | 622 | |
aab9c406 FF |
623 | phylink_ethtool_get_wol(dp->pl, w); |
624 | ||
9d490b4e | 625 | if (ds->ops->get_wol) |
d945097b | 626 | ds->ops->get_wol(ds, dp->index, w); |
19e57c4e FF |
627 | } |
628 | ||
629 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
630 | { | |
d945097b VD |
631 | struct dsa_port *dp = dsa_slave_to_port(dev); |
632 | struct dsa_switch *ds = dp->ds; | |
19e57c4e FF |
633 | int ret = -EOPNOTSUPP; |
634 | ||
aab9c406 FF |
635 | phylink_ethtool_set_wol(dp->pl, w); |
636 | ||
9d490b4e | 637 | if (ds->ops->set_wol) |
d945097b | 638 | ret = ds->ops->set_wol(ds, dp->index, w); |
19e57c4e FF |
639 | |
640 | return ret; | |
641 | } | |
642 | ||
7905288f FF |
643 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
644 | { | |
d945097b VD |
645 | struct dsa_port *dp = dsa_slave_to_port(dev); |
646 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
647 | int ret; |
648 | ||
7b9cc738 | 649 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 650 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
651 | return -ENODEV; |
652 | ||
08f50061 | 653 | if (!ds->ops->set_mac_eee) |
7905288f FF |
654 | return -EOPNOTSUPP; |
655 | ||
d945097b | 656 | ret = ds->ops->set_mac_eee(ds, dp->index, e); |
7905288f FF |
657 | if (ret) |
658 | return ret; | |
659 | ||
aab9c406 | 660 | return phylink_ethtool_set_eee(dp->pl, e); |
7905288f FF |
661 | } |
662 | ||
663 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
664 | { | |
d945097b VD |
665 | struct dsa_port *dp = dsa_slave_to_port(dev); |
666 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
667 | int ret; |
668 | ||
7b9cc738 | 669 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 670 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
671 | return -ENODEV; |
672 | ||
08f50061 | 673 | if (!ds->ops->get_mac_eee) |
7905288f FF |
674 | return -EOPNOTSUPP; |
675 | ||
d945097b | 676 | ret = ds->ops->get_mac_eee(ds, dp->index, e); |
7905288f FF |
677 | if (ret) |
678 | return ret; | |
679 | ||
aab9c406 FF |
680 | return phylink_ethtool_get_eee(dp->pl, e); |
681 | } | |
682 | ||
683 | static int dsa_slave_get_link_ksettings(struct net_device *dev, | |
684 | struct ethtool_link_ksettings *cmd) | |
685 | { | |
686 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
687 | ||
688 | return phylink_ethtool_ksettings_get(dp->pl, cmd); | |
689 | } | |
690 | ||
691 | static int dsa_slave_set_link_ksettings(struct net_device *dev, | |
692 | const struct ethtool_link_ksettings *cmd) | |
693 | { | |
694 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
695 | ||
696 | return phylink_ethtool_ksettings_set(dp->pl, cmd); | |
7905288f FF |
697 | } |
698 | ||
04ff53f9 FF |
699 | #ifdef CONFIG_NET_POLL_CONTROLLER |
700 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
701 | struct netpoll_info *ni) | |
702 | { | |
d0006b00 | 703 | struct net_device *master = dsa_slave_to_master(dev); |
04ff53f9 | 704 | struct dsa_slave_priv *p = netdev_priv(dev); |
04ff53f9 FF |
705 | struct netpoll *netpoll; |
706 | int err = 0; | |
707 | ||
708 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
709 | if (!netpoll) | |
710 | return -ENOMEM; | |
711 | ||
712 | err = __netpoll_setup(netpoll, master); | |
713 | if (err) { | |
714 | kfree(netpoll); | |
715 | goto out; | |
716 | } | |
717 | ||
718 | p->netpoll = netpoll; | |
719 | out: | |
720 | return err; | |
721 | } | |
722 | ||
723 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
724 | { | |
725 | struct dsa_slave_priv *p = netdev_priv(dev); | |
726 | struct netpoll *netpoll = p->netpoll; | |
727 | ||
728 | if (!netpoll) | |
729 | return; | |
730 | ||
731 | p->netpoll = NULL; | |
732 | ||
c9fbd71f | 733 | __netpoll_free(netpoll); |
04ff53f9 FF |
734 | } |
735 | ||
736 | static void dsa_slave_poll_controller(struct net_device *dev) | |
737 | { | |
738 | } | |
739 | #endif | |
740 | ||
44bb765c FF |
741 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
742 | char *name, size_t len) | |
743 | { | |
d945097b | 744 | struct dsa_port *dp = dsa_slave_to_port(dev); |
44bb765c | 745 | |
d484210b JP |
746 | /* For non-legacy ports, devlink is used and it takes |
747 | * care of the name generation. This ndo implementation | |
748 | * should be removed with legacy support. | |
749 | */ | |
750 | if (dp->ds->devlink) | |
751 | return -EOPNOTSUPP; | |
752 | ||
d945097b | 753 | if (snprintf(name, len, "p%d", dp->index) >= len) |
44bb765c | 754 | return -EINVAL; |
3a543ef4 FF |
755 | |
756 | return 0; | |
757 | } | |
758 | ||
f50f2127 | 759 | static struct dsa_mall_tc_entry * |
4fa7b718 | 760 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 761 | { |
4fa7b718 | 762 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
763 | struct dsa_mall_tc_entry *mall_tc_entry; |
764 | ||
765 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
766 | if (mall_tc_entry->cookie == cookie) | |
767 | return mall_tc_entry; | |
768 | ||
769 | return NULL; | |
770 | } | |
771 | ||
772 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
773 | struct tc_cls_matchall_offload *cls, |
774 | bool ingress) | |
775 | { | |
d945097b | 776 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 FF |
777 | struct dsa_slave_priv *p = netdev_priv(dev); |
778 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 779 | __be16 protocol = cls->common.protocol; |
d945097b | 780 | struct dsa_switch *ds = dp->ds; |
9681e8b3 | 781 | struct flow_action_entry *act; |
d945097b | 782 | struct dsa_port *to_dp; |
f50f2127 | 783 | int err = -EOPNOTSUPP; |
f50f2127 FF |
784 | |
785 | if (!ds->ops->port_mirror_add) | |
786 | return err; | |
787 | ||
9681e8b3 | 788 | if (!flow_offload_has_one_action(&cls->rule->action)) |
f50f2127 FF |
789 | return err; |
790 | ||
9681e8b3 | 791 | act = &cls->rule->action.entries[0]; |
f50f2127 | 792 | |
9681e8b3 | 793 | if (act->id == FLOW_ACTION_MIRRED && protocol == htons(ETH_P_ALL)) { |
f50f2127 FF |
794 | struct dsa_mall_mirror_tc_entry *mirror; |
795 | ||
9681e8b3 | 796 | if (!act->dev) |
f50f2127 FF |
797 | return -EINVAL; |
798 | ||
9681e8b3 | 799 | if (!dsa_slave_dev_check(act->dev)) |
f50f2127 FF |
800 | return -EOPNOTSUPP; |
801 | ||
802 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
803 | if (!mall_tc_entry) | |
804 | return -ENOMEM; | |
805 | ||
806 | mall_tc_entry->cookie = cls->cookie; | |
807 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
808 | mirror = &mall_tc_entry->mirror; | |
809 | ||
9681e8b3 | 810 | to_dp = dsa_slave_to_port(act->dev); |
f50f2127 | 811 | |
d945097b | 812 | mirror->to_local_port = to_dp->index; |
f50f2127 FF |
813 | mirror->ingress = ingress; |
814 | ||
d945097b | 815 | err = ds->ops->port_mirror_add(ds, dp->index, mirror, ingress); |
f50f2127 FF |
816 | if (err) { |
817 | kfree(mall_tc_entry); | |
818 | return err; | |
819 | } | |
820 | ||
821 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
822 | } | |
823 | ||
824 | return 0; | |
825 | } | |
826 | ||
827 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
828 | struct tc_cls_matchall_offload *cls) | |
829 | { | |
d945097b | 830 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 | 831 | struct dsa_mall_tc_entry *mall_tc_entry; |
d945097b | 832 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
833 | |
834 | if (!ds->ops->port_mirror_del) | |
835 | return; | |
836 | ||
4fa7b718 | 837 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
838 | if (!mall_tc_entry) |
839 | return; | |
840 | ||
841 | list_del(&mall_tc_entry->list); | |
842 | ||
843 | switch (mall_tc_entry->type) { | |
844 | case DSA_PORT_MALL_MIRROR: | |
d945097b | 845 | ds->ops->port_mirror_del(ds, dp->index, &mall_tc_entry->mirror); |
f50f2127 FF |
846 | break; |
847 | default: | |
848 | WARN_ON(1); | |
849 | } | |
850 | ||
851 | kfree(mall_tc_entry); | |
852 | } | |
853 | ||
3fbae382 | 854 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
6b3eb752 JP |
855 | struct tc_cls_matchall_offload *cls, |
856 | bool ingress) | |
f50f2127 | 857 | { |
5fd9fc4e | 858 | if (cls->common.chain_index) |
a5fcf8a6 | 859 | return -EOPNOTSUPP; |
f50f2127 | 860 | |
3fbae382 JP |
861 | switch (cls->command) { |
862 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 863 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
864 | case TC_CLSMATCHALL_DESTROY: |
865 | dsa_slave_del_cls_matchall(dev, cls); | |
866 | return 0; | |
867 | default: | |
868 | return -EOPNOTSUPP; | |
869 | } | |
870 | } | |
871 | ||
6b3eb752 JP |
872 | static int dsa_slave_setup_tc_block_cb(enum tc_setup_type type, void *type_data, |
873 | void *cb_priv, bool ingress) | |
874 | { | |
875 | struct net_device *dev = cb_priv; | |
876 | ||
44ae12a7 JP |
877 | if (!tc_can_offload(dev)) |
878 | return -EOPNOTSUPP; | |
879 | ||
6b3eb752 JP |
880 | switch (type) { |
881 | case TC_SETUP_CLSMATCHALL: | |
882 | return dsa_slave_setup_tc_cls_matchall(dev, type_data, ingress); | |
883 | default: | |
884 | return -EOPNOTSUPP; | |
885 | } | |
886 | } | |
887 | ||
888 | static int dsa_slave_setup_tc_block_cb_ig(enum tc_setup_type type, | |
889 | void *type_data, void *cb_priv) | |
890 | { | |
891 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, true); | |
892 | } | |
893 | ||
894 | static int dsa_slave_setup_tc_block_cb_eg(enum tc_setup_type type, | |
895 | void *type_data, void *cb_priv) | |
896 | { | |
897 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, false); | |
898 | } | |
899 | ||
900 | static int dsa_slave_setup_tc_block(struct net_device *dev, | |
901 | struct tc_block_offload *f) | |
902 | { | |
903 | tc_setup_cb_t *cb; | |
904 | ||
905 | if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) | |
906 | cb = dsa_slave_setup_tc_block_cb_ig; | |
907 | else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) | |
908 | cb = dsa_slave_setup_tc_block_cb_eg; | |
909 | else | |
910 | return -EOPNOTSUPP; | |
911 | ||
912 | switch (f->command) { | |
913 | case TC_BLOCK_BIND: | |
60513bd8 | 914 | return tcf_block_cb_register(f->block, cb, dev, dev, f->extack); |
6b3eb752 JP |
915 | case TC_BLOCK_UNBIND: |
916 | tcf_block_cb_unregister(f->block, cb, dev); | |
917 | return 0; | |
918 | default: | |
919 | return -EOPNOTSUPP; | |
920 | } | |
921 | } | |
922 | ||
3fbae382 | 923 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, |
de4784ca | 924 | void *type_data) |
3fbae382 | 925 | { |
2572ac53 | 926 | switch (type) { |
6b3eb752 JP |
927 | case TC_SETUP_BLOCK: |
928 | return dsa_slave_setup_tc_block(dev, type_data); | |
f50f2127 | 929 | default: |
a5fcf8a6 | 930 | return -EOPNOTSUPP; |
f50f2127 | 931 | } |
f50f2127 FF |
932 | } |
933 | ||
f613ed66 FF |
934 | static void dsa_slave_get_stats64(struct net_device *dev, |
935 | struct rtnl_link_stats64 *stats) | |
936 | { | |
937 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 938 | struct pcpu_sw_netstats *s; |
f613ed66 | 939 | unsigned int start; |
5f6b4e14 | 940 | int i; |
f613ed66 FF |
941 | |
942 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
943 | for_each_possible_cpu(i) { |
944 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
945 | ||
946 | s = per_cpu_ptr(p->stats64, i); | |
947 | do { | |
948 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
949 | tx_packets = s->tx_packets; | |
950 | tx_bytes = s->tx_bytes; | |
951 | rx_packets = s->rx_packets; | |
952 | rx_bytes = s->rx_bytes; | |
953 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
954 | ||
955 | stats->tx_packets += tx_packets; | |
956 | stats->tx_bytes += tx_bytes; | |
957 | stats->rx_packets += rx_packets; | |
958 | stats->rx_bytes += rx_bytes; | |
959 | } | |
f613ed66 FF |
960 | } |
961 | ||
bf9f2648 FF |
962 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
963 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
964 | { | |
d945097b VD |
965 | struct dsa_port *dp = dsa_slave_to_port(dev); |
966 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
967 | |
968 | if (!ds->ops->get_rxnfc) | |
969 | return -EOPNOTSUPP; | |
970 | ||
d945097b | 971 | return ds->ops->get_rxnfc(ds, dp->index, nfc, rule_locs); |
bf9f2648 FF |
972 | } |
973 | ||
974 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
975 | struct ethtool_rxnfc *nfc) | |
976 | { | |
d945097b VD |
977 | struct dsa_port *dp = dsa_slave_to_port(dev); |
978 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
979 | |
980 | if (!ds->ops->set_rxnfc) | |
981 | return -EOPNOTSUPP; | |
982 | ||
d945097b | 983 | return ds->ops->set_rxnfc(ds, dp->index, nfc); |
bf9f2648 FF |
984 | } |
985 | ||
0336369d BS |
986 | static int dsa_slave_get_ts_info(struct net_device *dev, |
987 | struct ethtool_ts_info *ts) | |
988 | { | |
989 | struct dsa_slave_priv *p = netdev_priv(dev); | |
990 | struct dsa_switch *ds = p->dp->ds; | |
991 | ||
992 | if (!ds->ops->get_ts_info) | |
993 | return -EOPNOTSUPP; | |
994 | ||
995 | return ds->ops->get_ts_info(ds, p->dp->index, ts); | |
996 | } | |
997 | ||
061f6a50 FF |
998 | static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto, |
999 | u16 vid) | |
1000 | { | |
1001 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
061f6a50 FF |
1002 | struct bridge_vlan_info info; |
1003 | int ret; | |
1004 | ||
1005 | /* Check for a possible bridge VLAN entry now since there is no | |
1006 | * need to emulate the switchdev prepare + commit phase. | |
1007 | */ | |
1008 | if (dp->bridge_dev) { | |
1009 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
1010 | * device, respectively the VID is not found, returning | |
1011 | * 0 means success, which is a failure for us here. | |
1012 | */ | |
1013 | ret = br_vlan_get_info(dp->bridge_dev, vid, &info); | |
1014 | if (ret == 0) | |
1015 | return -EBUSY; | |
1016 | } | |
1017 | ||
314f76d7 VO |
1018 | /* This API only allows programming tagged, non-PVID VIDs */ |
1019 | return dsa_port_vid_add(dp, vid, 0); | |
061f6a50 FF |
1020 | } |
1021 | ||
1022 | static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, | |
1023 | u16 vid) | |
1024 | { | |
1025 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
061f6a50 FF |
1026 | struct bridge_vlan_info info; |
1027 | int ret; | |
1028 | ||
1029 | /* Check for a possible bridge VLAN entry now since there is no | |
1030 | * need to emulate the switchdev prepare + commit phase. | |
1031 | */ | |
1032 | if (dp->bridge_dev) { | |
1033 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
1034 | * device, respectively the VID is not found, returning | |
1035 | * 0 means success, which is a failure for us here. | |
1036 | */ | |
1037 | ret = br_vlan_get_info(dp->bridge_dev, vid, &info); | |
1038 | if (ret == 0) | |
1039 | return -EBUSY; | |
1040 | } | |
1041 | ||
314f76d7 | 1042 | ret = dsa_port_vid_del(dp, vid); |
061f6a50 FF |
1043 | if (ret == -EOPNOTSUPP) |
1044 | ret = 0; | |
1045 | ||
1046 | return ret; | |
1047 | } | |
1048 | ||
91da11f8 | 1049 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1050 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1051 | .get_regs_len = dsa_slave_get_regs_len, |
1052 | .get_regs = dsa_slave_get_regs, | |
aab9c406 | 1053 | .nway_reset = dsa_slave_nway_reset, |
c4aef9fc | 1054 | .get_link = ethtool_op_get_link, |
6793abb4 GR |
1055 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1056 | .get_eeprom = dsa_slave_get_eeprom, | |
1057 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1058 | .get_strings = dsa_slave_get_strings, |
1059 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1060 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1061 | .set_wol = dsa_slave_set_wol, |
1062 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1063 | .set_eee = dsa_slave_set_eee, |
1064 | .get_eee = dsa_slave_get_eee, | |
aab9c406 FF |
1065 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1066 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
1067 | .get_rxnfc = dsa_slave_get_rxnfc, |
1068 | .set_rxnfc = dsa_slave_set_rxnfc, | |
0336369d | 1069 | .get_ts_info = dsa_slave_get_ts_info, |
91da11f8 LB |
1070 | }; |
1071 | ||
2a93c1a3 FF |
1072 | /* legacy way, bypassing the bridge *****************************************/ |
1073 | int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
1074 | struct net_device *dev, | |
1075 | const unsigned char *addr, u16 vid, | |
87b0984e PM |
1076 | u16 flags, |
1077 | struct netlink_ext_ack *extack) | |
2a93c1a3 FF |
1078 | { |
1079 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1080 | ||
1081 | return dsa_port_fdb_add(dp, addr, vid); | |
1082 | } | |
1083 | ||
1084 | int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
1085 | struct net_device *dev, | |
1086 | const unsigned char *addr, u16 vid) | |
1087 | { | |
1088 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1089 | ||
1090 | return dsa_port_fdb_del(dp, addr, vid); | |
1091 | } | |
1092 | ||
716efee2 JP |
1093 | static struct devlink_port *dsa_slave_get_devlink_port(struct net_device *dev) |
1094 | { | |
1095 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1096 | ||
1097 | return dp->ds->devlink ? &dp->devlink_port : NULL; | |
1098 | } | |
1099 | ||
3e8a72d1 | 1100 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1101 | .ndo_open = dsa_slave_open, |
1102 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1103 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1104 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1105 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1106 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
1107 | .ndo_fdb_add = dsa_legacy_fdb_add, |
1108 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 1109 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 1110 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1111 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1112 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1113 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1114 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1115 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1116 | #endif | |
44bb765c | 1117 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1118 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 1119 | .ndo_get_stats64 = dsa_slave_get_stats64, |
929d6c14 | 1120 | .ndo_get_port_parent_id = dsa_slave_get_port_parent_id, |
061f6a50 FF |
1121 | .ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid, |
1122 | .ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid, | |
716efee2 | 1123 | .ndo_get_devlink_port = dsa_slave_get_devlink_port, |
98237d43 SF |
1124 | }; |
1125 | ||
f37db85d FF |
1126 | static struct device_type dsa_type = { |
1127 | .name = "dsa", | |
1128 | }; | |
1129 | ||
aab9c406 FF |
1130 | static void dsa_slave_phylink_validate(struct net_device *dev, |
1131 | unsigned long *supported, | |
1132 | struct phylink_link_state *state) | |
0d8bcdd3 | 1133 | { |
d945097b | 1134 | struct dsa_port *dp = dsa_slave_to_port(dev); |
d945097b | 1135 | struct dsa_switch *ds = dp->ds; |
0d8bcdd3 | 1136 | |
aab9c406 FF |
1137 | if (!ds->ops->phylink_validate) |
1138 | return; | |
0d8bcdd3 | 1139 | |
aab9c406 FF |
1140 | ds->ops->phylink_validate(ds, dp->index, supported, state); |
1141 | } | |
0d8bcdd3 | 1142 | |
aab9c406 FF |
1143 | static int dsa_slave_phylink_mac_link_state(struct net_device *dev, |
1144 | struct phylink_link_state *state) | |
1145 | { | |
1146 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1147 | struct dsa_switch *ds = dp->ds; | |
0d8bcdd3 | 1148 | |
aab9c406 FF |
1149 | /* Only called for SGMII and 802.3z */ |
1150 | if (!ds->ops->phylink_mac_link_state) | |
1151 | return -EOPNOTSUPP; | |
ec9436ba | 1152 | |
aab9c406 | 1153 | return ds->ops->phylink_mac_link_state(ds, dp->index, state); |
0d8bcdd3 FF |
1154 | } |
1155 | ||
aab9c406 FF |
1156 | static void dsa_slave_phylink_mac_config(struct net_device *dev, |
1157 | unsigned int mode, | |
1158 | const struct phylink_link_state *state) | |
ce31b31c | 1159 | { |
aab9c406 FF |
1160 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1161 | struct dsa_switch *ds = dp->ds; | |
1162 | ||
1163 | if (!ds->ops->phylink_mac_config) | |
1164 | return; | |
b71be352 | 1165 | |
aab9c406 FF |
1166 | ds->ops->phylink_mac_config(ds, dp->index, mode, state); |
1167 | } | |
1168 | ||
1169 | static void dsa_slave_phylink_mac_an_restart(struct net_device *dev) | |
1170 | { | |
1171 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1172 | struct dsa_switch *ds = dp->ds; | |
1173 | ||
1174 | if (!ds->ops->phylink_mac_an_restart) | |
1175 | return; | |
1176 | ||
1177 | ds->ops->phylink_mac_an_restart(ds, dp->index); | |
1178 | } | |
1179 | ||
1180 | static void dsa_slave_phylink_mac_link_down(struct net_device *dev, | |
1181 | unsigned int mode, | |
1182 | phy_interface_t interface) | |
1183 | { | |
1184 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1185 | struct dsa_switch *ds = dp->ds; | |
1186 | ||
1187 | if (!ds->ops->phylink_mac_link_down) { | |
1188 | if (ds->ops->adjust_link && dev->phydev) | |
1189 | ds->ops->adjust_link(ds, dp->index, dev->phydev); | |
1190 | return; | |
b71be352 | 1191 | } |
ce31b31c | 1192 | |
aab9c406 FF |
1193 | ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface); |
1194 | } | |
1195 | ||
1196 | static void dsa_slave_phylink_mac_link_up(struct net_device *dev, | |
1197 | unsigned int mode, | |
1198 | phy_interface_t interface, | |
1199 | struct phy_device *phydev) | |
1200 | { | |
1201 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1202 | struct dsa_switch *ds = dp->ds; | |
1203 | ||
1204 | if (!ds->ops->phylink_mac_link_up) { | |
1205 | if (ds->ops->adjust_link && dev->phydev) | |
1206 | ds->ops->adjust_link(ds, dp->index, dev->phydev); | |
1207 | return; | |
1208 | } | |
1209 | ||
1210 | ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev); | |
1211 | } | |
1212 | ||
1213 | static const struct phylink_mac_ops dsa_slave_phylink_mac_ops = { | |
1214 | .validate = dsa_slave_phylink_validate, | |
1215 | .mac_link_state = dsa_slave_phylink_mac_link_state, | |
1216 | .mac_config = dsa_slave_phylink_mac_config, | |
1217 | .mac_an_restart = dsa_slave_phylink_mac_an_restart, | |
1218 | .mac_link_down = dsa_slave_phylink_mac_link_down, | |
1219 | .mac_link_up = dsa_slave_phylink_mac_link_up, | |
1220 | }; | |
1221 | ||
1222 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up) | |
1223 | { | |
1224 | const struct dsa_port *dp = dsa_to_port(ds, port); | |
1225 | ||
1226 | phylink_mac_change(dp->pl, up); | |
1227 | } | |
1228 | EXPORT_SYMBOL_GPL(dsa_port_phylink_mac_change); | |
1229 | ||
1230 | static void dsa_slave_phylink_fixed_state(struct net_device *dev, | |
1231 | struct phylink_link_state *state) | |
1232 | { | |
1233 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1234 | struct dsa_switch *ds = dp->ds; | |
1235 | ||
1236 | /* No need to check that this operation is valid, the callback would | |
1237 | * not be called if it was not. | |
1238 | */ | |
1239 | ds->ops->phylink_fixed_state(ds, dp->index, state); | |
ce31b31c FF |
1240 | } |
1241 | ||
91da11f8 | 1242 | /* slave device setup *******************************************************/ |
4fa7b718 | 1243 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 1244 | { |
d945097b | 1245 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b | 1246 | struct dsa_switch *ds = dp->ds; |
c305c165 | 1247 | |
0115dcd1 VD |
1248 | slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); |
1249 | if (!slave_dev->phydev) { | |
d25b8e74 | 1250 | netdev_err(slave_dev, "no phy at %d\n", addr); |
c305c165 | 1251 | return -ENODEV; |
d25b8e74 | 1252 | } |
c305c165 | 1253 | |
aab9c406 | 1254 | return phylink_connect_phy(dp->pl, slave_dev->phydev); |
11d8f3dd | 1255 | } |
11d8f3dd | 1256 | |
4fa7b718 | 1257 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 1258 | { |
d945097b | 1259 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b VD |
1260 | struct device_node *port_dn = dp->dn; |
1261 | struct dsa_switch *ds = dp->ds; | |
6819563e | 1262 | u32 phy_flags = 0; |
19334920 | 1263 | int mode, ret; |
0d8bcdd3 | 1264 | |
19334920 GR |
1265 | mode = of_get_phy_mode(port_dn); |
1266 | if (mode < 0) | |
1267 | mode = PHY_INTERFACE_MODE_NA; | |
0d8bcdd3 | 1268 | |
aab9c406 FF |
1269 | dp->pl = phylink_create(slave_dev, of_fwnode_handle(port_dn), mode, |
1270 | &dsa_slave_phylink_mac_ops); | |
1271 | if (IS_ERR(dp->pl)) { | |
1272 | netdev_err(slave_dev, | |
1273 | "error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); | |
1274 | return PTR_ERR(dp->pl); | |
0d8bcdd3 FF |
1275 | } |
1276 | ||
aab9c406 FF |
1277 | /* Register only if the switch provides such a callback, since this |
1278 | * callback takes precedence over polling the link GPIO in PHYLINK | |
1279 | * (see phylink_get_fixed_state). | |
1280 | */ | |
1281 | if (ds->ops->phylink_fixed_state) | |
1282 | phylink_fixed_state_cb(dp->pl, dsa_slave_phylink_fixed_state); | |
1283 | ||
9d490b4e | 1284 | if (ds->ops->get_phy_flags) |
d945097b | 1285 | phy_flags = ds->ops->get_phy_flags(ds, dp->index); |
6819563e | 1286 | |
aab9c406 | 1287 | ret = phylink_of_phy_connect(dp->pl, port_dn, phy_flags); |
6146dd45 VO |
1288 | if (ret == -ENODEV && ds->slave_mii_bus) { |
1289 | /* We could not connect to a designated PHY or SFP, so try to | |
1290 | * use the switch internal MDIO bus instead | |
aab9c406 | 1291 | */ |
d945097b | 1292 | ret = dsa_slave_phy_connect(slave_dev, dp->index); |
d25b8e74 | 1293 | if (ret) { |
aab9c406 FF |
1294 | netdev_err(slave_dev, |
1295 | "failed to connect to port %d: %d\n", | |
d945097b | 1296 | dp->index, ret); |
aab9c406 | 1297 | phylink_destroy(dp->pl); |
c305c165 | 1298 | return ret; |
d25b8e74 | 1299 | } |
b31f65fb | 1300 | } |
9697f1cd | 1301 | |
6146dd45 | 1302 | return ret; |
0d8bcdd3 FF |
1303 | } |
1304 | ||
448b4482 AL |
1305 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1306 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1307 | struct netdev_queue *txq, | |
1308 | void *_unused) | |
1309 | { | |
1310 | lockdep_set_class(&txq->_xmit_lock, | |
1311 | &dsa_slave_netdev_xmit_lock_key); | |
1312 | } | |
1313 | ||
24462549 FF |
1314 | int dsa_slave_suspend(struct net_device *slave_dev) |
1315 | { | |
aab9c406 | 1316 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
24462549 | 1317 | |
a94c689e FF |
1318 | if (!netif_running(slave_dev)) |
1319 | return 0; | |
1320 | ||
f154be24 FF |
1321 | netif_device_detach(slave_dev); |
1322 | ||
aab9c406 FF |
1323 | rtnl_lock(); |
1324 | phylink_stop(dp->pl); | |
1325 | rtnl_unlock(); | |
24462549 FF |
1326 | |
1327 | return 0; | |
1328 | } | |
1329 | ||
1330 | int dsa_slave_resume(struct net_device *slave_dev) | |
1331 | { | |
aab9c406 FF |
1332 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
1333 | ||
a94c689e FF |
1334 | if (!netif_running(slave_dev)) |
1335 | return 0; | |
1336 | ||
24462549 FF |
1337 | netif_device_attach(slave_dev); |
1338 | ||
aab9c406 FF |
1339 | rtnl_lock(); |
1340 | phylink_start(dp->pl); | |
1341 | rtnl_unlock(); | |
24462549 FF |
1342 | |
1343 | return 0; | |
1344 | } | |
1345 | ||
6158eaa7 VD |
1346 | static void dsa_slave_notify(struct net_device *dev, unsigned long val) |
1347 | { | |
d0006b00 | 1348 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 1349 | struct dsa_port *dp = dsa_slave_to_port(dev); |
6158eaa7 VD |
1350 | struct dsa_notifier_register_info rinfo = { |
1351 | .switch_number = dp->ds->index, | |
1352 | .port_number = dp->index, | |
1353 | .master = master, | |
1354 | .info.dev = dev, | |
1355 | }; | |
1356 | ||
1357 | call_dsa_notifiers(val, dev, &rinfo.info); | |
1358 | } | |
1359 | ||
951259aa | 1360 | int dsa_slave_create(struct dsa_port *port) |
91da11f8 | 1361 | { |
24a9332a | 1362 | const struct dsa_port *cpu_dp = port->cpu_dp; |
f8b8b1cd | 1363 | struct net_device *master = cpu_dp->master; |
4cfbf09c | 1364 | struct dsa_switch *ds = port->ds; |
951259aa | 1365 | const char *name = port->name; |
91da11f8 LB |
1366 | struct net_device *slave_dev; |
1367 | struct dsa_slave_priv *p; | |
1368 | int ret; | |
1369 | ||
55199df6 FF |
1370 | if (!ds->num_tx_queues) |
1371 | ds->num_tx_queues = 1; | |
1372 | ||
1373 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1374 | NET_NAME_UNKNOWN, ether_setup, | |
1375 | ds->num_tx_queues, 1); | |
91da11f8 | 1376 | if (slave_dev == NULL) |
d87d6f44 | 1377 | return -ENOMEM; |
91da11f8 | 1378 | |
061f6a50 FF |
1379 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC | |
1380 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
f50f2127 | 1381 | slave_dev->hw_features |= NETIF_F_HW_TC; |
7ad24ea4 | 1382 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
a2c7023f XS |
1383 | if (port->mac && is_valid_ether_addr(port->mac)) |
1384 | ether_addr_copy(slave_dev->dev_addr, port->mac); | |
1385 | else | |
1386 | eth_hw_addr_inherit(slave_dev, master); | |
0a5f107b | 1387 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1388 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
8b1efc0f JW |
1389 | slave_dev->min_mtu = 0; |
1390 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1391 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1392 | |
448b4482 AL |
1393 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1394 | NULL); | |
1395 | ||
4cfbf09c VD |
1396 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1397 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1398 | slave_dev->vlan_features = master->vlan_features; |
1399 | ||
1400 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1401 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1402 | if (!p->stats64) { | |
1403 | free_netdev(slave_dev); | |
1404 | return -ENOMEM; | |
1405 | } | |
4cfbf09c | 1406 | p->dp = port; |
f50f2127 | 1407 | INIT_LIST_HEAD(&p->mall_tc_list); |
15240248 | 1408 | p->xmit = cpu_dp->tag_ops->xmit; |
f8b8b1cd | 1409 | port->slave = slave_dev; |
91da11f8 LB |
1410 | |
1411 | netif_carrier_off(slave_dev); | |
1412 | ||
4fa7b718 | 1413 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1414 | if (ret) { |
1415 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
e804441c FF |
1416 | goto out_free; |
1417 | } | |
1418 | ||
6158eaa7 | 1419 | dsa_slave_notify(slave_dev, DSA_PORT_REGISTER); |
60724d4b | 1420 | |
e804441c FF |
1421 | ret = register_netdev(slave_dev); |
1422 | if (ret) { | |
1423 | netdev_err(master, "error %d registering interface %s\n", | |
1424 | ret, slave_dev->name); | |
1425 | goto out_phy; | |
0071f56e AL |
1426 | } |
1427 | ||
d87d6f44 | 1428 | return 0; |
e804441c FF |
1429 | |
1430 | out_phy: | |
aab9c406 FF |
1431 | rtnl_lock(); |
1432 | phylink_disconnect_phy(p->dp->pl); | |
1433 | rtnl_unlock(); | |
1434 | phylink_destroy(p->dp->pl); | |
e804441c FF |
1435 | out_free: |
1436 | free_percpu(p->stats64); | |
1437 | free_netdev(slave_dev); | |
f8b8b1cd | 1438 | port->slave = NULL; |
e804441c | 1439 | return ret; |
91da11f8 | 1440 | } |
b73adef6 | 1441 | |
cda5c15b NA |
1442 | void dsa_slave_destroy(struct net_device *slave_dev) |
1443 | { | |
d945097b | 1444 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
cda5c15b NA |
1445 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
1446 | ||
1447 | netif_carrier_off(slave_dev); | |
aab9c406 FF |
1448 | rtnl_lock(); |
1449 | phylink_disconnect_phy(dp->pl); | |
1450 | rtnl_unlock(); | |
881eadab | 1451 | |
6158eaa7 | 1452 | dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER); |
cda5c15b | 1453 | unregister_netdev(slave_dev); |
aab9c406 | 1454 | phylink_destroy(dp->pl); |
5f6b4e14 | 1455 | free_percpu(p->stats64); |
cda5c15b NA |
1456 | free_netdev(slave_dev); |
1457 | } | |
1458 | ||
b73adef6 FF |
1459 | static bool dsa_slave_dev_check(struct net_device *dev) |
1460 | { | |
1461 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1462 | } | |
1463 | ||
8e92ab3a VD |
1464 | static int dsa_slave_changeupper(struct net_device *dev, |
1465 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1466 | { |
d945097b | 1467 | struct dsa_port *dp = dsa_slave_to_port(dev); |
8e92ab3a | 1468 | int err = NOTIFY_DONE; |
b73adef6 | 1469 | |
8e92ab3a VD |
1470 | if (netif_is_bridge_master(info->upper_dev)) { |
1471 | if (info->linking) { | |
17d7802b | 1472 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1473 | err = notifier_from_errno(err); |
1474 | } else { | |
17d7802b | 1475 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1476 | err = NOTIFY_OK; |
6debb68a | 1477 | } |
6debb68a | 1478 | } |
b73adef6 | 1479 | |
8e92ab3a | 1480 | return err; |
6debb68a | 1481 | } |
b73adef6 | 1482 | |
cc1d5bda FF |
1483 | static int dsa_slave_upper_vlan_check(struct net_device *dev, |
1484 | struct netdev_notifier_changeupper_info * | |
1485 | info) | |
1486 | { | |
1487 | struct netlink_ext_ack *ext_ack; | |
1488 | struct net_device *slave; | |
1489 | struct dsa_port *dp; | |
1490 | ||
1491 | ext_ack = netdev_notifier_info_to_extack(&info->info); | |
1492 | ||
1493 | if (!is_vlan_dev(dev)) | |
1494 | return NOTIFY_DONE; | |
1495 | ||
1496 | slave = vlan_dev_real_dev(dev); | |
1497 | if (!dsa_slave_dev_check(slave)) | |
1498 | return NOTIFY_DONE; | |
1499 | ||
1500 | dp = dsa_slave_to_port(slave); | |
1501 | if (!dp->bridge_dev) | |
1502 | return NOTIFY_DONE; | |
1503 | ||
1504 | /* Deny enslaving a VLAN device into a VLAN-aware bridge */ | |
1505 | if (br_vlan_enabled(dp->bridge_dev) && | |
1506 | netif_is_bridge_master(info->upper_dev) && info->linking) { | |
1507 | NL_SET_ERR_MSG_MOD(ext_ack, | |
1508 | "Cannot enslave VLAN device into VLAN aware bridge"); | |
1509 | return notifier_from_errno(-EINVAL); | |
1510 | } | |
1511 | ||
1512 | return NOTIFY_DONE; | |
1513 | } | |
1514 | ||
88e4f0ca VD |
1515 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1516 | unsigned long event, void *ptr) | |
6debb68a VD |
1517 | { |
1518 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1519 | ||
cc1d5bda FF |
1520 | if (event == NETDEV_CHANGEUPPER) { |
1521 | if (!dsa_slave_dev_check(dev)) | |
1522 | return dsa_slave_upper_vlan_check(dev, ptr); | |
8e92ab3a | 1523 | |
8e92ab3a | 1524 | return dsa_slave_changeupper(dev, ptr); |
cc1d5bda | 1525 | } |
b73adef6 | 1526 | |
b73adef6 FF |
1527 | return NOTIFY_DONE; |
1528 | } | |
88e4f0ca | 1529 | |
9ed1eced FF |
1530 | static int |
1531 | dsa_slave_switchdev_port_attr_set_event(struct net_device *netdev, | |
1532 | struct switchdev_notifier_port_attr_info *port_attr_info) | |
1533 | { | |
1534 | int err; | |
1535 | ||
1536 | err = dsa_slave_port_attr_set(netdev, port_attr_info->attr, | |
1537 | port_attr_info->trans); | |
1538 | ||
1539 | port_attr_info->handled = true; | |
1540 | return notifier_from_errno(err); | |
1541 | } | |
1542 | ||
c9eb3e0f AS |
1543 | struct dsa_switchdev_event_work { |
1544 | struct work_struct work; | |
1545 | struct switchdev_notifier_fdb_info fdb_info; | |
1546 | struct net_device *dev; | |
1547 | unsigned long event; | |
1548 | }; | |
1549 | ||
1550 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1551 | { | |
1552 | struct dsa_switchdev_event_work *switchdev_work = | |
1553 | container_of(work, struct dsa_switchdev_event_work, work); | |
1554 | struct net_device *dev = switchdev_work->dev; | |
1555 | struct switchdev_notifier_fdb_info *fdb_info; | |
d945097b | 1556 | struct dsa_port *dp = dsa_slave_to_port(dev); |
c9eb3e0f AS |
1557 | int err; |
1558 | ||
1559 | rtnl_lock(); | |
1560 | switch (switchdev_work->event) { | |
1561 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1562 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1563 | if (!fdb_info->added_by_user) |
1564 | break; | |
1565 | ||
d945097b | 1566 | err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1567 | if (err) { |
1568 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1569 | break; | |
1570 | } | |
e9ba0fbc | 1571 | fdb_info->offloaded = true; |
c9eb3e0f | 1572 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, |
6685987c | 1573 | &fdb_info->info, NULL); |
c9eb3e0f AS |
1574 | break; |
1575 | ||
1576 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1577 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1578 | if (!fdb_info->added_by_user) |
1579 | break; | |
1580 | ||
d945097b | 1581 | err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1582 | if (err) { |
1583 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1584 | dev_close(dev); | |
1585 | } | |
1586 | break; | |
1587 | } | |
1588 | rtnl_unlock(); | |
1589 | ||
1590 | kfree(switchdev_work->fdb_info.addr); | |
1591 | kfree(switchdev_work); | |
1592 | dev_put(dev); | |
1593 | } | |
1594 | ||
1595 | static int | |
1596 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1597 | switchdev_work, | |
1598 | const struct switchdev_notifier_fdb_info * | |
1599 | fdb_info) | |
1600 | { | |
1601 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1602 | sizeof(switchdev_work->fdb_info)); | |
1603 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1604 | if (!switchdev_work->fdb_info.addr) | |
1605 | return -ENOMEM; | |
1606 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1607 | fdb_info->addr); | |
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | /* Called under rcu_read_lock() */ | |
1612 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1613 | unsigned long event, void *ptr) | |
1614 | { | |
1615 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1616 | struct dsa_switchdev_event_work *switchdev_work; | |
1617 | ||
1618 | if (!dsa_slave_dev_check(dev)) | |
1619 | return NOTIFY_DONE; | |
1620 | ||
9ed1eced FF |
1621 | if (event == SWITCHDEV_PORT_ATTR_SET) |
1622 | return dsa_slave_switchdev_port_attr_set_event(dev, ptr); | |
1623 | ||
c9eb3e0f AS |
1624 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); |
1625 | if (!switchdev_work) | |
1626 | return NOTIFY_BAD; | |
1627 | ||
1628 | INIT_WORK(&switchdev_work->work, | |
1629 | dsa_slave_switchdev_event_work); | |
1630 | switchdev_work->dev = dev; | |
1631 | switchdev_work->event = event; | |
1632 | ||
1633 | switch (event) { | |
1634 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1635 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
a37fb855 | 1636 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, ptr)) |
c9eb3e0f AS |
1637 | goto err_fdb_work_init; |
1638 | dev_hold(dev); | |
1639 | break; | |
1640 | default: | |
1641 | kfree(switchdev_work); | |
1642 | return NOTIFY_DONE; | |
1643 | } | |
1644 | ||
1645 | dsa_schedule_work(&switchdev_work->work); | |
1646 | return NOTIFY_OK; | |
1647 | ||
1648 | err_fdb_work_init: | |
1649 | kfree(switchdev_work); | |
1650 | return NOTIFY_BAD; | |
1651 | } | |
1652 | ||
2b239f67 PM |
1653 | static int |
1654 | dsa_slave_switchdev_port_obj_event(unsigned long event, | |
1655 | struct net_device *netdev, | |
1656 | struct switchdev_notifier_port_obj_info *port_obj_info) | |
1657 | { | |
1658 | int err = -EOPNOTSUPP; | |
1659 | ||
1660 | switch (event) { | |
1661 | case SWITCHDEV_PORT_OBJ_ADD: | |
1662 | err = dsa_slave_port_obj_add(netdev, port_obj_info->obj, | |
1663 | port_obj_info->trans); | |
1664 | break; | |
1665 | case SWITCHDEV_PORT_OBJ_DEL: | |
1666 | err = dsa_slave_port_obj_del(netdev, port_obj_info->obj); | |
1667 | break; | |
1668 | } | |
1669 | ||
1670 | port_obj_info->handled = true; | |
1671 | return notifier_from_errno(err); | |
1672 | } | |
1673 | ||
1674 | static int dsa_slave_switchdev_blocking_event(struct notifier_block *unused, | |
1675 | unsigned long event, void *ptr) | |
1676 | { | |
1677 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1678 | ||
1679 | if (!dsa_slave_dev_check(dev)) | |
1680 | return NOTIFY_DONE; | |
1681 | ||
1682 | switch (event) { | |
1683 | case SWITCHDEV_PORT_OBJ_ADD: /* fall through */ | |
1684 | case SWITCHDEV_PORT_OBJ_DEL: | |
1685 | return dsa_slave_switchdev_port_obj_event(event, dev, ptr); | |
9ed1eced FF |
1686 | case SWITCHDEV_PORT_ATTR_SET: |
1687 | return dsa_slave_switchdev_port_attr_set_event(dev, ptr); | |
2b239f67 PM |
1688 | } |
1689 | ||
1690 | return NOTIFY_DONE; | |
1691 | } | |
1692 | ||
88e4f0ca | 1693 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1694 | .notifier_call = dsa_slave_netdevice_event, |
1695 | }; | |
1696 | ||
1697 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1698 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1699 | }; |
1700 | ||
2b239f67 PM |
1701 | static struct notifier_block dsa_slave_switchdev_blocking_notifier = { |
1702 | .notifier_call = dsa_slave_switchdev_blocking_event, | |
1703 | }; | |
1704 | ||
88e4f0ca VD |
1705 | int dsa_slave_register_notifier(void) |
1706 | { | |
2b239f67 | 1707 | struct notifier_block *nb; |
c9eb3e0f AS |
1708 | int err; |
1709 | ||
1710 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1711 | if (err) | |
1712 | return err; | |
1713 | ||
1714 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1715 | if (err) | |
1716 | goto err_switchdev_nb; | |
1717 | ||
2b239f67 PM |
1718 | nb = &dsa_slave_switchdev_blocking_notifier; |
1719 | err = register_switchdev_blocking_notifier(nb); | |
1720 | if (err) | |
1721 | goto err_switchdev_blocking_nb; | |
1722 | ||
c9eb3e0f AS |
1723 | return 0; |
1724 | ||
2b239f67 PM |
1725 | err_switchdev_blocking_nb: |
1726 | unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
c9eb3e0f AS |
1727 | err_switchdev_nb: |
1728 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1729 | return err; | |
88e4f0ca VD |
1730 | } |
1731 | ||
1732 | void dsa_slave_unregister_notifier(void) | |
1733 | { | |
2b239f67 | 1734 | struct notifier_block *nb; |
88e4f0ca VD |
1735 | int err; |
1736 | ||
2b239f67 PM |
1737 | nb = &dsa_slave_switchdev_blocking_notifier; |
1738 | err = unregister_switchdev_blocking_notifier(nb); | |
1739 | if (err) | |
1740 | pr_err("DSA: failed to unregister switchdev blocking notifier (%d)\n", err); | |
1741 | ||
c9eb3e0f AS |
1742 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1743 | if (err) | |
1744 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1745 | ||
88e4f0ca VD |
1746 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1747 | if (err) | |
1748 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1749 | } |