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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 | |
97a69a0d VO |
123 | cancel_work_sync(&dp->xmit_work); |
124 | skb_queue_purge(&dp->xmit_queue); | |
125 | ||
aab9c406 | 126 | phylink_stop(dp->pl); |
f7f1de51 | 127 | |
75104db0 | 128 | dsa_port_disable(dp); |
6457edfe | 129 | |
df02c6ff | 130 | dev_mc_unsync(master, dev); |
a748ee24 | 131 | dev_uc_unsync(master, dev); |
df02c6ff LB |
132 | if (dev->flags & IFF_ALLMULTI) |
133 | dev_set_allmulti(master, -1); | |
134 | if (dev->flags & IFF_PROMISC) | |
135 | dev_set_promiscuity(master, -1); | |
136 | ||
8feedbb4 | 137 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 138 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 139 | |
91da11f8 LB |
140 | return 0; |
141 | } | |
142 | ||
143 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
144 | { | |
d0006b00 | 145 | struct net_device *master = dsa_slave_to_master(dev); |
17ab4f61 RG |
146 | if (dev->flags & IFF_UP) { |
147 | if (change & IFF_ALLMULTI) | |
148 | dev_set_allmulti(master, | |
149 | dev->flags & IFF_ALLMULTI ? 1 : -1); | |
150 | if (change & IFF_PROMISC) | |
151 | dev_set_promiscuity(master, | |
152 | dev->flags & IFF_PROMISC ? 1 : -1); | |
153 | } | |
91da11f8 LB |
154 | } |
155 | ||
156 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
157 | { | |
d0006b00 | 158 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
159 | |
160 | dev_mc_sync(master, dev); | |
a748ee24 | 161 | dev_uc_sync(master, dev); |
91da11f8 LB |
162 | } |
163 | ||
df02c6ff | 164 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 165 | { |
d0006b00 | 166 | struct net_device *master = dsa_slave_to_master(dev); |
df02c6ff LB |
167 | struct sockaddr *addr = a; |
168 | int err; | |
169 | ||
170 | if (!is_valid_ether_addr(addr->sa_data)) | |
171 | return -EADDRNOTAVAIL; | |
172 | ||
173 | if (!(dev->flags & IFF_UP)) | |
174 | goto out; | |
175 | ||
8feedbb4 | 176 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 177 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
178 | if (err < 0) |
179 | return err; | |
180 | } | |
181 | ||
8feedbb4 | 182 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 183 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
184 | |
185 | out: | |
d08f161a | 186 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
187 | |
188 | return 0; | |
189 | } | |
190 | ||
2bedde1a AS |
191 | struct dsa_slave_dump_ctx { |
192 | struct net_device *dev; | |
193 | struct sk_buff *skb; | |
194 | struct netlink_callback *cb; | |
195 | int idx; | |
196 | }; | |
197 | ||
198 | static int | |
199 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
200 | bool is_static, void *data) | |
201 | { | |
202 | struct dsa_slave_dump_ctx *dump = data; | |
203 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
204 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
205 | struct nlmsghdr *nlh; | |
206 | struct ndmsg *ndm; | |
207 | ||
208 | if (dump->idx < dump->cb->args[2]) | |
209 | goto skip; | |
210 | ||
211 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
212 | sizeof(*ndm), NLM_F_MULTI); | |
213 | if (!nlh) | |
214 | return -EMSGSIZE; | |
215 | ||
216 | ndm = nlmsg_data(nlh); | |
217 | ndm->ndm_family = AF_BRIDGE; | |
218 | ndm->ndm_pad1 = 0; | |
219 | ndm->ndm_pad2 = 0; | |
220 | ndm->ndm_flags = NTF_SELF; | |
221 | ndm->ndm_type = 0; | |
222 | ndm->ndm_ifindex = dump->dev->ifindex; | |
223 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
224 | ||
225 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
226 | goto nla_put_failure; | |
227 | ||
228 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
229 | goto nla_put_failure; | |
230 | ||
231 | nlmsg_end(dump->skb, nlh); | |
232 | ||
233 | skip: | |
234 | dump->idx++; | |
235 | return 0; | |
236 | ||
237 | nla_put_failure: | |
238 | nlmsg_cancel(dump->skb, nlh); | |
239 | return -EMSGSIZE; | |
240 | } | |
241 | ||
242 | static int | |
243 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
244 | struct net_device *dev, struct net_device *filter_dev, | |
245 | int *idx) | |
246 | { | |
d945097b | 247 | struct dsa_port *dp = dsa_slave_to_port(dev); |
2bedde1a AS |
248 | struct dsa_slave_dump_ctx dump = { |
249 | .dev = dev, | |
250 | .skb = skb, | |
251 | .cb = cb, | |
252 | .idx = *idx, | |
253 | }; | |
2bedde1a AS |
254 | int err; |
255 | ||
de40fc5d | 256 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 257 | *idx = dump.idx; |
de40fc5d | 258 | |
2bedde1a AS |
259 | return err; |
260 | } | |
261 | ||
91da11f8 LB |
262 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
263 | { | |
0336369d BS |
264 | struct dsa_slave_priv *p = netdev_priv(dev); |
265 | struct dsa_switch *ds = p->dp->ds; | |
266 | int port = p->dp->index; | |
267 | ||
268 | /* Pass through to switch driver if it supports timestamping */ | |
269 | switch (cmd) { | |
270 | case SIOCGHWTSTAMP: | |
271 | if (ds->ops->port_hwtstamp_get) | |
272 | return ds->ops->port_hwtstamp_get(ds, port, ifr); | |
273 | break; | |
274 | case SIOCSHWTSTAMP: | |
275 | if (ds->ops->port_hwtstamp_set) | |
276 | return ds->ops->port_hwtstamp_set(ds, port, ifr); | |
277 | break; | |
278 | } | |
279 | ||
aab9c406 | 280 | return phylink_mii_ioctl(p->dp->pl, ifr, cmd); |
91da11f8 LB |
281 | } |
282 | ||
35636062 | 283 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 284 | const struct switchdev_attr *attr, |
7ea6eb3f | 285 | struct switchdev_trans *trans) |
35636062 | 286 | { |
d945097b | 287 | struct dsa_port *dp = dsa_slave_to_port(dev); |
b8d866ac | 288 | int ret; |
35636062 SF |
289 | |
290 | switch (attr->id) { | |
1f868398 | 291 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 292 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 293 | break; |
fb2dabad | 294 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
295 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
296 | trans); | |
fb2dabad | 297 | break; |
34a79f63 | 298 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 299 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 300 | break; |
ea87005a FF |
301 | case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: |
302 | ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags, | |
303 | trans); | |
304 | break; | |
57652796 RK |
305 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
306 | ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans); | |
307 | break; | |
35636062 SF |
308 | default: |
309 | ret = -EOPNOTSUPP; | |
310 | break; | |
311 | } | |
312 | ||
313 | return ret; | |
314 | } | |
315 | ||
ba14d9eb | 316 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 317 | const struct switchdev_obj *obj, |
7ea6eb3f | 318 | struct switchdev_trans *trans) |
ba14d9eb | 319 | { |
d945097b | 320 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
321 | int err; |
322 | ||
323 | /* For the prepare phase, ensure the full set of changes is feasable in | |
324 | * one go in order to signal a failure properly. If an operation is not | |
325 | * supported, return -EOPNOTSUPP. | |
326 | */ | |
327 | ||
9e8f4a54 | 328 | switch (obj->id) { |
8df30255 | 329 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 330 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 331 | break; |
5f4dbc50 AL |
332 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
333 | /* DSA can directly translate this to a normal MDB add, | |
334 | * but on the CPU port. | |
335 | */ | |
336 | err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj), | |
337 | trans); | |
338 | break; | |
57d80838 | 339 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
340 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
341 | trans); | |
11149536 | 342 | break; |
ba14d9eb VD |
343 | default: |
344 | err = -EOPNOTSUPP; | |
345 | break; | |
346 | } | |
347 | ||
348 | return err; | |
349 | } | |
350 | ||
351 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 352 | const struct switchdev_obj *obj) |
ba14d9eb | 353 | { |
d945097b | 354 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
355 | int err; |
356 | ||
9e8f4a54 | 357 | switch (obj->id) { |
8df30255 | 358 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 359 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 360 | break; |
5f4dbc50 AL |
361 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
362 | /* DSA can directly translate this to a normal MDB add, | |
363 | * but on the CPU port. | |
364 | */ | |
365 | err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
366 | break; | |
57d80838 | 367 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 368 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 369 | break; |
ba14d9eb VD |
370 | default: |
371 | err = -EOPNOTSUPP; | |
372 | break; | |
373 | } | |
374 | ||
375 | return err; | |
376 | } | |
377 | ||
929d6c14 FF |
378 | static int dsa_slave_get_port_parent_id(struct net_device *dev, |
379 | struct netdev_phys_item_id *ppid) | |
b73adef6 | 380 | { |
d945097b VD |
381 | struct dsa_port *dp = dsa_slave_to_port(dev); |
382 | struct dsa_switch *ds = dp->ds; | |
a42c8e33 | 383 | struct dsa_switch_tree *dst = ds->dst; |
b73adef6 | 384 | |
15b04ace JP |
385 | /* For non-legacy ports, devlink is used and it takes |
386 | * care of the name generation. This ndo implementation | |
387 | * should be removed with legacy support. | |
388 | */ | |
389 | if (dp->ds->devlink) | |
390 | return -EOPNOTSUPP; | |
391 | ||
929d6c14 FF |
392 | ppid->id_len = sizeof(dst->index); |
393 | memcpy(&ppid->id, &dst->index, ppid->id_len); | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
4fa7b718 VD |
398 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
399 | struct sk_buff *skb) | |
04ff53f9 FF |
400 | { |
401 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
402 | struct dsa_slave_priv *p = netdev_priv(dev); |
403 | ||
04ff53f9 FF |
404 | if (p->netpoll) |
405 | netpoll_send_skb(p->netpoll, skb); | |
406 | #else | |
407 | BUG(); | |
408 | #endif | |
409 | return NETDEV_TX_OK; | |
410 | } | |
411 | ||
90af1059 BS |
412 | static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p, |
413 | struct sk_buff *skb) | |
414 | { | |
415 | struct dsa_switch *ds = p->dp->ds; | |
416 | struct sk_buff *clone; | |
417 | unsigned int type; | |
418 | ||
419 | type = ptp_classify_raw(skb); | |
420 | if (type == PTP_CLASS_NONE) | |
421 | return; | |
422 | ||
423 | if (!ds->ops->port_txtstamp) | |
424 | return; | |
425 | ||
426 | clone = skb_clone_sk(skb); | |
427 | if (!clone) | |
428 | return; | |
429 | ||
430 | if (ds->ops->port_txtstamp(ds, p->dp->index, clone, type)) | |
431 | return; | |
432 | ||
433 | kfree_skb(clone); | |
434 | } | |
435 | ||
97a69a0d VO |
436 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev) |
437 | { | |
438 | /* SKB for netpoll still need to be mangled with the protocol-specific | |
439 | * tag to be successfully transmitted | |
440 | */ | |
441 | if (unlikely(netpoll_tx_running(dev))) | |
442 | return dsa_slave_netpoll_send_skb(dev, skb); | |
443 | ||
444 | /* Queue the SKB for transmission on the parent interface, but | |
445 | * do not modify its EtherType | |
446 | */ | |
447 | skb->dev = dsa_slave_to_master(dev); | |
448 | dev_queue_xmit(skb); | |
449 | ||
450 | return NETDEV_TX_OK; | |
451 | } | |
452 | EXPORT_SYMBOL_GPL(dsa_enqueue_skb); | |
453 | ||
3e8a72d1 FF |
454 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
455 | { | |
456 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 457 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 458 | struct sk_buff *nskb; |
3e8a72d1 | 459 | |
5f6b4e14 FF |
460 | s = this_cpu_ptr(p->stats64); |
461 | u64_stats_update_begin(&s->syncp); | |
462 | s->tx_packets++; | |
463 | s->tx_bytes += skb->len; | |
464 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 465 | |
87671375 VO |
466 | DSA_SKB_CB(skb)->deferred_xmit = false; |
467 | ||
90af1059 BS |
468 | /* Identify PTP protocol packets, clone them, and pass them to the |
469 | * switch driver | |
470 | */ | |
471 | dsa_skb_tx_timestamp(p, skb); | |
472 | ||
fe47d563 VD |
473 | /* Transmit function may have to reallocate the original SKB, |
474 | * in which case it must have freed it. Only free it here on error. | |
475 | */ | |
4ed70ce9 | 476 | nskb = p->xmit(skb, dev); |
fe47d563 | 477 | if (!nskb) { |
97a69a0d VO |
478 | if (!DSA_SKB_CB(skb)->deferred_xmit) |
479 | kfree_skb(skb); | |
4ed70ce9 | 480 | return NETDEV_TX_OK; |
fe47d563 | 481 | } |
5aed85ce | 482 | |
97a69a0d VO |
483 | return dsa_enqueue_skb(nskb, dev); |
484 | } | |
04ff53f9 | 485 | |
97a69a0d VO |
486 | void *dsa_defer_xmit(struct sk_buff *skb, struct net_device *dev) |
487 | { | |
488 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
5aed85ce | 489 | |
97a69a0d VO |
490 | DSA_SKB_CB(skb)->deferred_xmit = true; |
491 | ||
492 | skb_queue_tail(&dp->xmit_queue, skb); | |
493 | schedule_work(&dp->xmit_work); | |
494 | return NULL; | |
495 | } | |
496 | EXPORT_SYMBOL_GPL(dsa_defer_xmit); | |
497 | ||
498 | static void dsa_port_xmit_work(struct work_struct *work) | |
499 | { | |
500 | struct dsa_port *dp = container_of(work, struct dsa_port, xmit_work); | |
501 | struct dsa_switch *ds = dp->ds; | |
502 | struct sk_buff *skb; | |
503 | ||
504 | if (unlikely(!ds->ops->port_deferred_xmit)) | |
505 | return; | |
506 | ||
507 | while ((skb = skb_dequeue(&dp->xmit_queue)) != NULL) | |
508 | ds->ops->port_deferred_xmit(ds, dp->index, skb); | |
5aed85ce FF |
509 | } |
510 | ||
91da11f8 | 511 | /* ethtool operations *******************************************************/ |
91da11f8 | 512 | |
91da11f8 LB |
513 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
514 | struct ethtool_drvinfo *drvinfo) | |
515 | { | |
7826d43f | 516 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
517 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
518 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
519 | } |
520 | ||
3d762a0f GR |
521 | static int dsa_slave_get_regs_len(struct net_device *dev) |
522 | { | |
d945097b VD |
523 | struct dsa_port *dp = dsa_slave_to_port(dev); |
524 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 525 | |
9d490b4e | 526 | if (ds->ops->get_regs_len) |
d945097b | 527 | return ds->ops->get_regs_len(ds, dp->index); |
3d762a0f GR |
528 | |
529 | return -EOPNOTSUPP; | |
530 | } | |
531 | ||
532 | static void | |
533 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
534 | { | |
d945097b VD |
535 | struct dsa_port *dp = dsa_slave_to_port(dev); |
536 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 537 | |
9d490b4e | 538 | if (ds->ops->get_regs) |
d945097b | 539 | ds->ops->get_regs(ds, dp->index, regs, _p); |
3d762a0f GR |
540 | } |
541 | ||
aab9c406 FF |
542 | static int dsa_slave_nway_reset(struct net_device *dev) |
543 | { | |
544 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
545 | ||
546 | return phylink_ethtool_nway_reset(dp->pl); | |
547 | } | |
548 | ||
6793abb4 GR |
549 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
550 | { | |
d945097b VD |
551 | struct dsa_port *dp = dsa_slave_to_port(dev); |
552 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 553 | |
0e576044 | 554 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 555 | return ds->cd->eeprom_len; |
6793abb4 | 556 | |
9d490b4e VD |
557 | if (ds->ops->get_eeprom_len) |
558 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
559 | |
560 | return 0; | |
561 | } | |
562 | ||
563 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
564 | struct ethtool_eeprom *eeprom, u8 *data) | |
565 | { | |
d945097b VD |
566 | struct dsa_port *dp = dsa_slave_to_port(dev); |
567 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 568 | |
9d490b4e VD |
569 | if (ds->ops->get_eeprom) |
570 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
571 | |
572 | return -EOPNOTSUPP; | |
573 | } | |
574 | ||
575 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
576 | struct ethtool_eeprom *eeprom, u8 *data) | |
577 | { | |
d945097b VD |
578 | struct dsa_port *dp = dsa_slave_to_port(dev); |
579 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 580 | |
9d490b4e VD |
581 | if (ds->ops->set_eeprom) |
582 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
583 | |
584 | return -EOPNOTSUPP; | |
585 | } | |
586 | ||
91da11f8 LB |
587 | static void dsa_slave_get_strings(struct net_device *dev, |
588 | uint32_t stringset, uint8_t *data) | |
589 | { | |
d945097b VD |
590 | struct dsa_port *dp = dsa_slave_to_port(dev); |
591 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
592 | |
593 | if (stringset == ETH_SS_STATS) { | |
594 | int len = ETH_GSTRING_LEN; | |
595 | ||
596 | strncpy(data, "tx_packets", len); | |
597 | strncpy(data + len, "tx_bytes", len); | |
598 | strncpy(data + 2 * len, "rx_packets", len); | |
599 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 600 | if (ds->ops->get_strings) |
89f09048 FF |
601 | ds->ops->get_strings(ds, dp->index, stringset, |
602 | data + 4 * len); | |
91da11f8 LB |
603 | } |
604 | } | |
605 | ||
606 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
607 | struct ethtool_stats *stats, | |
608 | uint64_t *data) | |
609 | { | |
d945097b | 610 | struct dsa_port *dp = dsa_slave_to_port(dev); |
91da11f8 | 611 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 612 | struct dsa_switch *ds = dp->ds; |
5f6b4e14 | 613 | struct pcpu_sw_netstats *s; |
f613ed66 | 614 | unsigned int start; |
5f6b4e14 FF |
615 | int i; |
616 | ||
617 | for_each_possible_cpu(i) { | |
618 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
619 | ||
620 | s = per_cpu_ptr(p->stats64, i); | |
621 | do { | |
622 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
623 | tx_packets = s->tx_packets; | |
624 | tx_bytes = s->tx_bytes; | |
625 | rx_packets = s->rx_packets; | |
626 | rx_bytes = s->rx_bytes; | |
627 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
628 | data[0] += tx_packets; | |
629 | data[1] += tx_bytes; | |
630 | data[2] += rx_packets; | |
631 | data[3] += rx_bytes; | |
632 | } | |
9d490b4e | 633 | if (ds->ops->get_ethtool_stats) |
d945097b | 634 | ds->ops->get_ethtool_stats(ds, dp->index, data + 4); |
91da11f8 LB |
635 | } |
636 | ||
637 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
638 | { | |
d945097b VD |
639 | struct dsa_port *dp = dsa_slave_to_port(dev); |
640 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
641 | |
642 | if (sset == ETH_SS_STATS) { | |
643 | int count; | |
644 | ||
645 | count = 4; | |
9d490b4e | 646 | if (ds->ops->get_sset_count) |
89f09048 | 647 | count += ds->ops->get_sset_count(ds, dp->index, sset); |
91da11f8 LB |
648 | |
649 | return count; | |
650 | } | |
651 | ||
652 | return -EOPNOTSUPP; | |
653 | } | |
654 | ||
19e57c4e FF |
655 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
656 | { | |
d945097b VD |
657 | struct dsa_port *dp = dsa_slave_to_port(dev); |
658 | struct dsa_switch *ds = dp->ds; | |
19e57c4e | 659 | |
aab9c406 FF |
660 | phylink_ethtool_get_wol(dp->pl, w); |
661 | ||
9d490b4e | 662 | if (ds->ops->get_wol) |
d945097b | 663 | ds->ops->get_wol(ds, dp->index, w); |
19e57c4e FF |
664 | } |
665 | ||
666 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
667 | { | |
d945097b VD |
668 | struct dsa_port *dp = dsa_slave_to_port(dev); |
669 | struct dsa_switch *ds = dp->ds; | |
19e57c4e FF |
670 | int ret = -EOPNOTSUPP; |
671 | ||
aab9c406 FF |
672 | phylink_ethtool_set_wol(dp->pl, w); |
673 | ||
9d490b4e | 674 | if (ds->ops->set_wol) |
d945097b | 675 | ret = ds->ops->set_wol(ds, dp->index, w); |
19e57c4e FF |
676 | |
677 | return ret; | |
678 | } | |
679 | ||
7905288f FF |
680 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
681 | { | |
d945097b VD |
682 | struct dsa_port *dp = dsa_slave_to_port(dev); |
683 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
684 | int ret; |
685 | ||
7b9cc738 | 686 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 687 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
688 | return -ENODEV; |
689 | ||
08f50061 | 690 | if (!ds->ops->set_mac_eee) |
7905288f FF |
691 | return -EOPNOTSUPP; |
692 | ||
d945097b | 693 | ret = ds->ops->set_mac_eee(ds, dp->index, e); |
7905288f FF |
694 | if (ret) |
695 | return ret; | |
696 | ||
aab9c406 | 697 | return phylink_ethtool_set_eee(dp->pl, e); |
7905288f FF |
698 | } |
699 | ||
700 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
701 | { | |
d945097b VD |
702 | struct dsa_port *dp = dsa_slave_to_port(dev); |
703 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
704 | int ret; |
705 | ||
7b9cc738 | 706 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 707 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
708 | return -ENODEV; |
709 | ||
08f50061 | 710 | if (!ds->ops->get_mac_eee) |
7905288f FF |
711 | return -EOPNOTSUPP; |
712 | ||
d945097b | 713 | ret = ds->ops->get_mac_eee(ds, dp->index, e); |
7905288f FF |
714 | if (ret) |
715 | return ret; | |
716 | ||
aab9c406 FF |
717 | return phylink_ethtool_get_eee(dp->pl, e); |
718 | } | |
719 | ||
720 | static int dsa_slave_get_link_ksettings(struct net_device *dev, | |
721 | struct ethtool_link_ksettings *cmd) | |
722 | { | |
723 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
724 | ||
725 | return phylink_ethtool_ksettings_get(dp->pl, cmd); | |
726 | } | |
727 | ||
728 | static int dsa_slave_set_link_ksettings(struct net_device *dev, | |
729 | const struct ethtool_link_ksettings *cmd) | |
730 | { | |
731 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
732 | ||
733 | return phylink_ethtool_ksettings_set(dp->pl, cmd); | |
7905288f FF |
734 | } |
735 | ||
04ff53f9 FF |
736 | #ifdef CONFIG_NET_POLL_CONTROLLER |
737 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
738 | struct netpoll_info *ni) | |
739 | { | |
d0006b00 | 740 | struct net_device *master = dsa_slave_to_master(dev); |
04ff53f9 | 741 | struct dsa_slave_priv *p = netdev_priv(dev); |
04ff53f9 FF |
742 | struct netpoll *netpoll; |
743 | int err = 0; | |
744 | ||
745 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
746 | if (!netpoll) | |
747 | return -ENOMEM; | |
748 | ||
749 | err = __netpoll_setup(netpoll, master); | |
750 | if (err) { | |
751 | kfree(netpoll); | |
752 | goto out; | |
753 | } | |
754 | ||
755 | p->netpoll = netpoll; | |
756 | out: | |
757 | return err; | |
758 | } | |
759 | ||
760 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
761 | { | |
762 | struct dsa_slave_priv *p = netdev_priv(dev); | |
763 | struct netpoll *netpoll = p->netpoll; | |
764 | ||
765 | if (!netpoll) | |
766 | return; | |
767 | ||
768 | p->netpoll = NULL; | |
769 | ||
c9fbd71f | 770 | __netpoll_free(netpoll); |
04ff53f9 FF |
771 | } |
772 | ||
773 | static void dsa_slave_poll_controller(struct net_device *dev) | |
774 | { | |
775 | } | |
776 | #endif | |
777 | ||
44bb765c FF |
778 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
779 | char *name, size_t len) | |
780 | { | |
d945097b | 781 | struct dsa_port *dp = dsa_slave_to_port(dev); |
44bb765c | 782 | |
d484210b JP |
783 | /* For non-legacy ports, devlink is used and it takes |
784 | * care of the name generation. This ndo implementation | |
785 | * should be removed with legacy support. | |
786 | */ | |
787 | if (dp->ds->devlink) | |
788 | return -EOPNOTSUPP; | |
789 | ||
d945097b | 790 | if (snprintf(name, len, "p%d", dp->index) >= len) |
44bb765c | 791 | return -EINVAL; |
3a543ef4 FF |
792 | |
793 | return 0; | |
794 | } | |
795 | ||
f50f2127 | 796 | static struct dsa_mall_tc_entry * |
4fa7b718 | 797 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 798 | { |
4fa7b718 | 799 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
800 | struct dsa_mall_tc_entry *mall_tc_entry; |
801 | ||
802 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
803 | if (mall_tc_entry->cookie == cookie) | |
804 | return mall_tc_entry; | |
805 | ||
806 | return NULL; | |
807 | } | |
808 | ||
809 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
810 | struct tc_cls_matchall_offload *cls, |
811 | bool ingress) | |
812 | { | |
d945097b | 813 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 FF |
814 | struct dsa_slave_priv *p = netdev_priv(dev); |
815 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 816 | __be16 protocol = cls->common.protocol; |
d945097b | 817 | struct dsa_switch *ds = dp->ds; |
9681e8b3 | 818 | struct flow_action_entry *act; |
d945097b | 819 | struct dsa_port *to_dp; |
f50f2127 | 820 | int err = -EOPNOTSUPP; |
f50f2127 FF |
821 | |
822 | if (!ds->ops->port_mirror_add) | |
823 | return err; | |
824 | ||
9681e8b3 | 825 | if (!flow_offload_has_one_action(&cls->rule->action)) |
f50f2127 FF |
826 | return err; |
827 | ||
9681e8b3 | 828 | act = &cls->rule->action.entries[0]; |
f50f2127 | 829 | |
9681e8b3 | 830 | if (act->id == FLOW_ACTION_MIRRED && protocol == htons(ETH_P_ALL)) { |
f50f2127 FF |
831 | struct dsa_mall_mirror_tc_entry *mirror; |
832 | ||
9681e8b3 | 833 | if (!act->dev) |
f50f2127 FF |
834 | return -EINVAL; |
835 | ||
9681e8b3 | 836 | if (!dsa_slave_dev_check(act->dev)) |
f50f2127 FF |
837 | return -EOPNOTSUPP; |
838 | ||
839 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
840 | if (!mall_tc_entry) | |
841 | return -ENOMEM; | |
842 | ||
843 | mall_tc_entry->cookie = cls->cookie; | |
844 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
845 | mirror = &mall_tc_entry->mirror; | |
846 | ||
9681e8b3 | 847 | to_dp = dsa_slave_to_port(act->dev); |
f50f2127 | 848 | |
d945097b | 849 | mirror->to_local_port = to_dp->index; |
f50f2127 FF |
850 | mirror->ingress = ingress; |
851 | ||
d945097b | 852 | err = ds->ops->port_mirror_add(ds, dp->index, mirror, ingress); |
f50f2127 FF |
853 | if (err) { |
854 | kfree(mall_tc_entry); | |
855 | return err; | |
856 | } | |
857 | ||
858 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
859 | } | |
860 | ||
861 | return 0; | |
862 | } | |
863 | ||
864 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
865 | struct tc_cls_matchall_offload *cls) | |
866 | { | |
d945097b | 867 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 | 868 | struct dsa_mall_tc_entry *mall_tc_entry; |
d945097b | 869 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
870 | |
871 | if (!ds->ops->port_mirror_del) | |
872 | return; | |
873 | ||
4fa7b718 | 874 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
875 | if (!mall_tc_entry) |
876 | return; | |
877 | ||
878 | list_del(&mall_tc_entry->list); | |
879 | ||
880 | switch (mall_tc_entry->type) { | |
881 | case DSA_PORT_MALL_MIRROR: | |
d945097b | 882 | ds->ops->port_mirror_del(ds, dp->index, &mall_tc_entry->mirror); |
f50f2127 FF |
883 | break; |
884 | default: | |
885 | WARN_ON(1); | |
886 | } | |
887 | ||
888 | kfree(mall_tc_entry); | |
889 | } | |
890 | ||
3fbae382 | 891 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
6b3eb752 JP |
892 | struct tc_cls_matchall_offload *cls, |
893 | bool ingress) | |
f50f2127 | 894 | { |
5fd9fc4e | 895 | if (cls->common.chain_index) |
a5fcf8a6 | 896 | return -EOPNOTSUPP; |
f50f2127 | 897 | |
3fbae382 JP |
898 | switch (cls->command) { |
899 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 900 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
901 | case TC_CLSMATCHALL_DESTROY: |
902 | dsa_slave_del_cls_matchall(dev, cls); | |
903 | return 0; | |
904 | default: | |
905 | return -EOPNOTSUPP; | |
906 | } | |
907 | } | |
908 | ||
6b3eb752 JP |
909 | static int dsa_slave_setup_tc_block_cb(enum tc_setup_type type, void *type_data, |
910 | void *cb_priv, bool ingress) | |
911 | { | |
912 | struct net_device *dev = cb_priv; | |
913 | ||
44ae12a7 JP |
914 | if (!tc_can_offload(dev)) |
915 | return -EOPNOTSUPP; | |
916 | ||
6b3eb752 JP |
917 | switch (type) { |
918 | case TC_SETUP_CLSMATCHALL: | |
919 | return dsa_slave_setup_tc_cls_matchall(dev, type_data, ingress); | |
920 | default: | |
921 | return -EOPNOTSUPP; | |
922 | } | |
923 | } | |
924 | ||
925 | static int dsa_slave_setup_tc_block_cb_ig(enum tc_setup_type type, | |
926 | void *type_data, void *cb_priv) | |
927 | { | |
928 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, true); | |
929 | } | |
930 | ||
931 | static int dsa_slave_setup_tc_block_cb_eg(enum tc_setup_type type, | |
932 | void *type_data, void *cb_priv) | |
933 | { | |
934 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, false); | |
935 | } | |
936 | ||
937 | static int dsa_slave_setup_tc_block(struct net_device *dev, | |
938 | struct tc_block_offload *f) | |
939 | { | |
940 | tc_setup_cb_t *cb; | |
941 | ||
942 | if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS) | |
943 | cb = dsa_slave_setup_tc_block_cb_ig; | |
944 | else if (f->binder_type == TCF_BLOCK_BINDER_TYPE_CLSACT_EGRESS) | |
945 | cb = dsa_slave_setup_tc_block_cb_eg; | |
946 | else | |
947 | return -EOPNOTSUPP; | |
948 | ||
949 | switch (f->command) { | |
950 | case TC_BLOCK_BIND: | |
60513bd8 | 951 | return tcf_block_cb_register(f->block, cb, dev, dev, f->extack); |
6b3eb752 JP |
952 | case TC_BLOCK_UNBIND: |
953 | tcf_block_cb_unregister(f->block, cb, dev); | |
954 | return 0; | |
955 | default: | |
956 | return -EOPNOTSUPP; | |
957 | } | |
958 | } | |
959 | ||
3fbae382 | 960 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, |
de4784ca | 961 | void *type_data) |
3fbae382 | 962 | { |
2572ac53 | 963 | switch (type) { |
6b3eb752 JP |
964 | case TC_SETUP_BLOCK: |
965 | return dsa_slave_setup_tc_block(dev, type_data); | |
f50f2127 | 966 | default: |
a5fcf8a6 | 967 | return -EOPNOTSUPP; |
f50f2127 | 968 | } |
f50f2127 FF |
969 | } |
970 | ||
f613ed66 FF |
971 | static void dsa_slave_get_stats64(struct net_device *dev, |
972 | struct rtnl_link_stats64 *stats) | |
973 | { | |
974 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 975 | struct pcpu_sw_netstats *s; |
f613ed66 | 976 | unsigned int start; |
5f6b4e14 | 977 | int i; |
f613ed66 FF |
978 | |
979 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
980 | for_each_possible_cpu(i) { |
981 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
982 | ||
983 | s = per_cpu_ptr(p->stats64, i); | |
984 | do { | |
985 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
986 | tx_packets = s->tx_packets; | |
987 | tx_bytes = s->tx_bytes; | |
988 | rx_packets = s->rx_packets; | |
989 | rx_bytes = s->rx_bytes; | |
990 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
991 | ||
992 | stats->tx_packets += tx_packets; | |
993 | stats->tx_bytes += tx_bytes; | |
994 | stats->rx_packets += rx_packets; | |
995 | stats->rx_bytes += rx_bytes; | |
996 | } | |
f613ed66 FF |
997 | } |
998 | ||
bf9f2648 FF |
999 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
1000 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
1001 | { | |
d945097b VD |
1002 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1003 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
1004 | |
1005 | if (!ds->ops->get_rxnfc) | |
1006 | return -EOPNOTSUPP; | |
1007 | ||
d945097b | 1008 | return ds->ops->get_rxnfc(ds, dp->index, nfc, rule_locs); |
bf9f2648 FF |
1009 | } |
1010 | ||
1011 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
1012 | struct ethtool_rxnfc *nfc) | |
1013 | { | |
d945097b VD |
1014 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1015 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
1016 | |
1017 | if (!ds->ops->set_rxnfc) | |
1018 | return -EOPNOTSUPP; | |
1019 | ||
d945097b | 1020 | return ds->ops->set_rxnfc(ds, dp->index, nfc); |
bf9f2648 FF |
1021 | } |
1022 | ||
0336369d BS |
1023 | static int dsa_slave_get_ts_info(struct net_device *dev, |
1024 | struct ethtool_ts_info *ts) | |
1025 | { | |
1026 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1027 | struct dsa_switch *ds = p->dp->ds; | |
1028 | ||
1029 | if (!ds->ops->get_ts_info) | |
1030 | return -EOPNOTSUPP; | |
1031 | ||
1032 | return ds->ops->get_ts_info(ds, p->dp->index, ts); | |
1033 | } | |
1034 | ||
061f6a50 FF |
1035 | static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto, |
1036 | u16 vid) | |
1037 | { | |
1038 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
061f6a50 FF |
1039 | struct bridge_vlan_info info; |
1040 | int ret; | |
1041 | ||
1042 | /* Check for a possible bridge VLAN entry now since there is no | |
1043 | * need to emulate the switchdev prepare + commit phase. | |
1044 | */ | |
1045 | if (dp->bridge_dev) { | |
1046 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
1047 | * device, respectively the VID is not found, returning | |
1048 | * 0 means success, which is a failure for us here. | |
1049 | */ | |
1050 | ret = br_vlan_get_info(dp->bridge_dev, vid, &info); | |
1051 | if (ret == 0) | |
1052 | return -EBUSY; | |
1053 | } | |
1054 | ||
314f76d7 VO |
1055 | /* This API only allows programming tagged, non-PVID VIDs */ |
1056 | return dsa_port_vid_add(dp, vid, 0); | |
061f6a50 FF |
1057 | } |
1058 | ||
1059 | static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, | |
1060 | u16 vid) | |
1061 | { | |
1062 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
061f6a50 FF |
1063 | struct bridge_vlan_info info; |
1064 | int ret; | |
1065 | ||
1066 | /* Check for a possible bridge VLAN entry now since there is no | |
1067 | * need to emulate the switchdev prepare + commit phase. | |
1068 | */ | |
1069 | if (dp->bridge_dev) { | |
1070 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the | |
1071 | * device, respectively the VID is not found, returning | |
1072 | * 0 means success, which is a failure for us here. | |
1073 | */ | |
1074 | ret = br_vlan_get_info(dp->bridge_dev, vid, &info); | |
1075 | if (ret == 0) | |
1076 | return -EBUSY; | |
1077 | } | |
1078 | ||
314f76d7 | 1079 | ret = dsa_port_vid_del(dp, vid); |
061f6a50 FF |
1080 | if (ret == -EOPNOTSUPP) |
1081 | ret = 0; | |
1082 | ||
1083 | return ret; | |
1084 | } | |
1085 | ||
91da11f8 | 1086 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1087 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1088 | .get_regs_len = dsa_slave_get_regs_len, |
1089 | .get_regs = dsa_slave_get_regs, | |
aab9c406 | 1090 | .nway_reset = dsa_slave_nway_reset, |
c4aef9fc | 1091 | .get_link = ethtool_op_get_link, |
6793abb4 GR |
1092 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1093 | .get_eeprom = dsa_slave_get_eeprom, | |
1094 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1095 | .get_strings = dsa_slave_get_strings, |
1096 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1097 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1098 | .set_wol = dsa_slave_set_wol, |
1099 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1100 | .set_eee = dsa_slave_set_eee, |
1101 | .get_eee = dsa_slave_get_eee, | |
aab9c406 FF |
1102 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1103 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
1104 | .get_rxnfc = dsa_slave_get_rxnfc, |
1105 | .set_rxnfc = dsa_slave_set_rxnfc, | |
0336369d | 1106 | .get_ts_info = dsa_slave_get_ts_info, |
91da11f8 LB |
1107 | }; |
1108 | ||
2a93c1a3 FF |
1109 | /* legacy way, bypassing the bridge *****************************************/ |
1110 | int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
1111 | struct net_device *dev, | |
1112 | const unsigned char *addr, u16 vid, | |
87b0984e PM |
1113 | u16 flags, |
1114 | struct netlink_ext_ack *extack) | |
2a93c1a3 FF |
1115 | { |
1116 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1117 | ||
1118 | return dsa_port_fdb_add(dp, addr, vid); | |
1119 | } | |
1120 | ||
1121 | int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
1122 | struct net_device *dev, | |
1123 | const unsigned char *addr, u16 vid) | |
1124 | { | |
1125 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1126 | ||
1127 | return dsa_port_fdb_del(dp, addr, vid); | |
1128 | } | |
1129 | ||
716efee2 JP |
1130 | static struct devlink_port *dsa_slave_get_devlink_port(struct net_device *dev) |
1131 | { | |
1132 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1133 | ||
1134 | return dp->ds->devlink ? &dp->devlink_port : NULL; | |
1135 | } | |
1136 | ||
3e8a72d1 | 1137 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1138 | .ndo_open = dsa_slave_open, |
1139 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1140 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1141 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1142 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1143 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
1144 | .ndo_fdb_add = dsa_legacy_fdb_add, |
1145 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 1146 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 1147 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1148 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1149 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1150 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1151 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1152 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1153 | #endif | |
44bb765c | 1154 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1155 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 1156 | .ndo_get_stats64 = dsa_slave_get_stats64, |
929d6c14 | 1157 | .ndo_get_port_parent_id = dsa_slave_get_port_parent_id, |
061f6a50 FF |
1158 | .ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid, |
1159 | .ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid, | |
716efee2 | 1160 | .ndo_get_devlink_port = dsa_slave_get_devlink_port, |
98237d43 SF |
1161 | }; |
1162 | ||
f37db85d FF |
1163 | static struct device_type dsa_type = { |
1164 | .name = "dsa", | |
1165 | }; | |
1166 | ||
aab9c406 FF |
1167 | static void dsa_slave_phylink_validate(struct net_device *dev, |
1168 | unsigned long *supported, | |
1169 | struct phylink_link_state *state) | |
0d8bcdd3 | 1170 | { |
d945097b | 1171 | struct dsa_port *dp = dsa_slave_to_port(dev); |
d945097b | 1172 | struct dsa_switch *ds = dp->ds; |
0d8bcdd3 | 1173 | |
aab9c406 FF |
1174 | if (!ds->ops->phylink_validate) |
1175 | return; | |
0d8bcdd3 | 1176 | |
aab9c406 FF |
1177 | ds->ops->phylink_validate(ds, dp->index, supported, state); |
1178 | } | |
0d8bcdd3 | 1179 | |
aab9c406 FF |
1180 | static int dsa_slave_phylink_mac_link_state(struct net_device *dev, |
1181 | struct phylink_link_state *state) | |
1182 | { | |
1183 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1184 | struct dsa_switch *ds = dp->ds; | |
0d8bcdd3 | 1185 | |
aab9c406 FF |
1186 | /* Only called for SGMII and 802.3z */ |
1187 | if (!ds->ops->phylink_mac_link_state) | |
1188 | return -EOPNOTSUPP; | |
ec9436ba | 1189 | |
aab9c406 | 1190 | return ds->ops->phylink_mac_link_state(ds, dp->index, state); |
0d8bcdd3 FF |
1191 | } |
1192 | ||
aab9c406 FF |
1193 | static void dsa_slave_phylink_mac_config(struct net_device *dev, |
1194 | unsigned int mode, | |
1195 | const struct phylink_link_state *state) | |
ce31b31c | 1196 | { |
aab9c406 FF |
1197 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1198 | struct dsa_switch *ds = dp->ds; | |
1199 | ||
1200 | if (!ds->ops->phylink_mac_config) | |
1201 | return; | |
b71be352 | 1202 | |
aab9c406 FF |
1203 | ds->ops->phylink_mac_config(ds, dp->index, mode, state); |
1204 | } | |
1205 | ||
1206 | static void dsa_slave_phylink_mac_an_restart(struct net_device *dev) | |
1207 | { | |
1208 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1209 | struct dsa_switch *ds = dp->ds; | |
1210 | ||
1211 | if (!ds->ops->phylink_mac_an_restart) | |
1212 | return; | |
1213 | ||
1214 | ds->ops->phylink_mac_an_restart(ds, dp->index); | |
1215 | } | |
1216 | ||
1217 | static void dsa_slave_phylink_mac_link_down(struct net_device *dev, | |
1218 | unsigned int mode, | |
1219 | phy_interface_t interface) | |
1220 | { | |
1221 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1222 | struct dsa_switch *ds = dp->ds; | |
1223 | ||
1224 | if (!ds->ops->phylink_mac_link_down) { | |
1225 | if (ds->ops->adjust_link && dev->phydev) | |
1226 | ds->ops->adjust_link(ds, dp->index, dev->phydev); | |
1227 | return; | |
b71be352 | 1228 | } |
ce31b31c | 1229 | |
aab9c406 FF |
1230 | ds->ops->phylink_mac_link_down(ds, dp->index, mode, interface); |
1231 | } | |
1232 | ||
1233 | static void dsa_slave_phylink_mac_link_up(struct net_device *dev, | |
1234 | unsigned int mode, | |
1235 | phy_interface_t interface, | |
1236 | struct phy_device *phydev) | |
1237 | { | |
1238 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1239 | struct dsa_switch *ds = dp->ds; | |
1240 | ||
1241 | if (!ds->ops->phylink_mac_link_up) { | |
1242 | if (ds->ops->adjust_link && dev->phydev) | |
1243 | ds->ops->adjust_link(ds, dp->index, dev->phydev); | |
1244 | return; | |
1245 | } | |
1246 | ||
1247 | ds->ops->phylink_mac_link_up(ds, dp->index, mode, interface, phydev); | |
1248 | } | |
1249 | ||
1250 | static const struct phylink_mac_ops dsa_slave_phylink_mac_ops = { | |
1251 | .validate = dsa_slave_phylink_validate, | |
1252 | .mac_link_state = dsa_slave_phylink_mac_link_state, | |
1253 | .mac_config = dsa_slave_phylink_mac_config, | |
1254 | .mac_an_restart = dsa_slave_phylink_mac_an_restart, | |
1255 | .mac_link_down = dsa_slave_phylink_mac_link_down, | |
1256 | .mac_link_up = dsa_slave_phylink_mac_link_up, | |
1257 | }; | |
1258 | ||
1259 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up) | |
1260 | { | |
1261 | const struct dsa_port *dp = dsa_to_port(ds, port); | |
1262 | ||
1263 | phylink_mac_change(dp->pl, up); | |
1264 | } | |
1265 | EXPORT_SYMBOL_GPL(dsa_port_phylink_mac_change); | |
1266 | ||
1267 | static void dsa_slave_phylink_fixed_state(struct net_device *dev, | |
1268 | struct phylink_link_state *state) | |
1269 | { | |
1270 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1271 | struct dsa_switch *ds = dp->ds; | |
1272 | ||
1273 | /* No need to check that this operation is valid, the callback would | |
1274 | * not be called if it was not. | |
1275 | */ | |
1276 | ds->ops->phylink_fixed_state(ds, dp->index, state); | |
ce31b31c FF |
1277 | } |
1278 | ||
91da11f8 | 1279 | /* slave device setup *******************************************************/ |
4fa7b718 | 1280 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 1281 | { |
d945097b | 1282 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b | 1283 | struct dsa_switch *ds = dp->ds; |
c305c165 | 1284 | |
0115dcd1 VD |
1285 | slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); |
1286 | if (!slave_dev->phydev) { | |
d25b8e74 | 1287 | netdev_err(slave_dev, "no phy at %d\n", addr); |
c305c165 | 1288 | return -ENODEV; |
d25b8e74 | 1289 | } |
c305c165 | 1290 | |
aab9c406 | 1291 | return phylink_connect_phy(dp->pl, slave_dev->phydev); |
11d8f3dd | 1292 | } |
11d8f3dd | 1293 | |
4fa7b718 | 1294 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 1295 | { |
d945097b | 1296 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b VD |
1297 | struct device_node *port_dn = dp->dn; |
1298 | struct dsa_switch *ds = dp->ds; | |
6819563e | 1299 | u32 phy_flags = 0; |
19334920 | 1300 | int mode, ret; |
0d8bcdd3 | 1301 | |
19334920 GR |
1302 | mode = of_get_phy_mode(port_dn); |
1303 | if (mode < 0) | |
1304 | mode = PHY_INTERFACE_MODE_NA; | |
0d8bcdd3 | 1305 | |
aab9c406 FF |
1306 | dp->pl = phylink_create(slave_dev, of_fwnode_handle(port_dn), mode, |
1307 | &dsa_slave_phylink_mac_ops); | |
1308 | if (IS_ERR(dp->pl)) { | |
1309 | netdev_err(slave_dev, | |
1310 | "error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); | |
1311 | return PTR_ERR(dp->pl); | |
0d8bcdd3 FF |
1312 | } |
1313 | ||
aab9c406 FF |
1314 | /* Register only if the switch provides such a callback, since this |
1315 | * callback takes precedence over polling the link GPIO in PHYLINK | |
1316 | * (see phylink_get_fixed_state). | |
1317 | */ | |
1318 | if (ds->ops->phylink_fixed_state) | |
1319 | phylink_fixed_state_cb(dp->pl, dsa_slave_phylink_fixed_state); | |
1320 | ||
9d490b4e | 1321 | if (ds->ops->get_phy_flags) |
d945097b | 1322 | phy_flags = ds->ops->get_phy_flags(ds, dp->index); |
6819563e | 1323 | |
aab9c406 | 1324 | ret = phylink_of_phy_connect(dp->pl, port_dn, phy_flags); |
6146dd45 VO |
1325 | if (ret == -ENODEV && ds->slave_mii_bus) { |
1326 | /* We could not connect to a designated PHY or SFP, so try to | |
1327 | * use the switch internal MDIO bus instead | |
aab9c406 | 1328 | */ |
d945097b | 1329 | ret = dsa_slave_phy_connect(slave_dev, dp->index); |
d25b8e74 | 1330 | if (ret) { |
aab9c406 FF |
1331 | netdev_err(slave_dev, |
1332 | "failed to connect to port %d: %d\n", | |
d945097b | 1333 | dp->index, ret); |
aab9c406 | 1334 | phylink_destroy(dp->pl); |
c305c165 | 1335 | return ret; |
d25b8e74 | 1336 | } |
b31f65fb | 1337 | } |
9697f1cd | 1338 | |
6146dd45 | 1339 | return ret; |
0d8bcdd3 FF |
1340 | } |
1341 | ||
448b4482 AL |
1342 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1343 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1344 | struct netdev_queue *txq, | |
1345 | void *_unused) | |
1346 | { | |
1347 | lockdep_set_class(&txq->_xmit_lock, | |
1348 | &dsa_slave_netdev_xmit_lock_key); | |
1349 | } | |
1350 | ||
24462549 FF |
1351 | int dsa_slave_suspend(struct net_device *slave_dev) |
1352 | { | |
aab9c406 | 1353 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
24462549 | 1354 | |
a94c689e FF |
1355 | if (!netif_running(slave_dev)) |
1356 | return 0; | |
1357 | ||
97a69a0d VO |
1358 | cancel_work_sync(&dp->xmit_work); |
1359 | skb_queue_purge(&dp->xmit_queue); | |
1360 | ||
f154be24 FF |
1361 | netif_device_detach(slave_dev); |
1362 | ||
aab9c406 FF |
1363 | rtnl_lock(); |
1364 | phylink_stop(dp->pl); | |
1365 | rtnl_unlock(); | |
24462549 FF |
1366 | |
1367 | return 0; | |
1368 | } | |
1369 | ||
1370 | int dsa_slave_resume(struct net_device *slave_dev) | |
1371 | { | |
aab9c406 FF |
1372 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
1373 | ||
a94c689e FF |
1374 | if (!netif_running(slave_dev)) |
1375 | return 0; | |
1376 | ||
24462549 FF |
1377 | netif_device_attach(slave_dev); |
1378 | ||
aab9c406 FF |
1379 | rtnl_lock(); |
1380 | phylink_start(dp->pl); | |
1381 | rtnl_unlock(); | |
24462549 FF |
1382 | |
1383 | return 0; | |
1384 | } | |
1385 | ||
6158eaa7 VD |
1386 | static void dsa_slave_notify(struct net_device *dev, unsigned long val) |
1387 | { | |
d0006b00 | 1388 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 1389 | struct dsa_port *dp = dsa_slave_to_port(dev); |
6158eaa7 VD |
1390 | struct dsa_notifier_register_info rinfo = { |
1391 | .switch_number = dp->ds->index, | |
1392 | .port_number = dp->index, | |
1393 | .master = master, | |
1394 | .info.dev = dev, | |
1395 | }; | |
1396 | ||
1397 | call_dsa_notifiers(val, dev, &rinfo.info); | |
1398 | } | |
1399 | ||
951259aa | 1400 | int dsa_slave_create(struct dsa_port *port) |
91da11f8 | 1401 | { |
24a9332a | 1402 | const struct dsa_port *cpu_dp = port->cpu_dp; |
f8b8b1cd | 1403 | struct net_device *master = cpu_dp->master; |
4cfbf09c | 1404 | struct dsa_switch *ds = port->ds; |
951259aa | 1405 | const char *name = port->name; |
91da11f8 LB |
1406 | struct net_device *slave_dev; |
1407 | struct dsa_slave_priv *p; | |
1408 | int ret; | |
1409 | ||
55199df6 FF |
1410 | if (!ds->num_tx_queues) |
1411 | ds->num_tx_queues = 1; | |
1412 | ||
1413 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1414 | NET_NAME_UNKNOWN, ether_setup, | |
1415 | ds->num_tx_queues, 1); | |
91da11f8 | 1416 | if (slave_dev == NULL) |
d87d6f44 | 1417 | return -ENOMEM; |
91da11f8 | 1418 | |
061f6a50 FF |
1419 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC | |
1420 | NETIF_F_HW_VLAN_CTAG_FILTER; | |
f50f2127 | 1421 | slave_dev->hw_features |= NETIF_F_HW_TC; |
7ad24ea4 | 1422 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
4974f9b7 | 1423 | if (!IS_ERR_OR_NULL(port->mac)) |
a2c7023f XS |
1424 | ether_addr_copy(slave_dev->dev_addr, port->mac); |
1425 | else | |
1426 | eth_hw_addr_inherit(slave_dev, master); | |
0a5f107b | 1427 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1428 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
8b1efc0f JW |
1429 | slave_dev->min_mtu = 0; |
1430 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1431 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1432 | |
448b4482 AL |
1433 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1434 | NULL); | |
1435 | ||
4cfbf09c VD |
1436 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1437 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1438 | slave_dev->vlan_features = master->vlan_features; |
1439 | ||
1440 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1441 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1442 | if (!p->stats64) { | |
1443 | free_netdev(slave_dev); | |
1444 | return -ENOMEM; | |
1445 | } | |
4cfbf09c | 1446 | p->dp = port; |
f50f2127 | 1447 | INIT_LIST_HEAD(&p->mall_tc_list); |
97a69a0d VO |
1448 | INIT_WORK(&port->xmit_work, dsa_port_xmit_work); |
1449 | skb_queue_head_init(&port->xmit_queue); | |
15240248 | 1450 | p->xmit = cpu_dp->tag_ops->xmit; |
f8b8b1cd | 1451 | port->slave = slave_dev; |
91da11f8 LB |
1452 | |
1453 | netif_carrier_off(slave_dev); | |
1454 | ||
4fa7b718 | 1455 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1456 | if (ret) { |
1457 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
e804441c FF |
1458 | goto out_free; |
1459 | } | |
1460 | ||
6158eaa7 | 1461 | dsa_slave_notify(slave_dev, DSA_PORT_REGISTER); |
60724d4b | 1462 | |
e804441c FF |
1463 | ret = register_netdev(slave_dev); |
1464 | if (ret) { | |
1465 | netdev_err(master, "error %d registering interface %s\n", | |
1466 | ret, slave_dev->name); | |
1467 | goto out_phy; | |
0071f56e AL |
1468 | } |
1469 | ||
d87d6f44 | 1470 | return 0; |
e804441c FF |
1471 | |
1472 | out_phy: | |
aab9c406 FF |
1473 | rtnl_lock(); |
1474 | phylink_disconnect_phy(p->dp->pl); | |
1475 | rtnl_unlock(); | |
1476 | phylink_destroy(p->dp->pl); | |
e804441c FF |
1477 | out_free: |
1478 | free_percpu(p->stats64); | |
1479 | free_netdev(slave_dev); | |
f8b8b1cd | 1480 | port->slave = NULL; |
e804441c | 1481 | return ret; |
91da11f8 | 1482 | } |
b73adef6 | 1483 | |
cda5c15b NA |
1484 | void dsa_slave_destroy(struct net_device *slave_dev) |
1485 | { | |
d945097b | 1486 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
cda5c15b NA |
1487 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
1488 | ||
1489 | netif_carrier_off(slave_dev); | |
aab9c406 FF |
1490 | rtnl_lock(); |
1491 | phylink_disconnect_phy(dp->pl); | |
1492 | rtnl_unlock(); | |
881eadab | 1493 | |
6158eaa7 | 1494 | dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER); |
cda5c15b | 1495 | unregister_netdev(slave_dev); |
aab9c406 | 1496 | phylink_destroy(dp->pl); |
5f6b4e14 | 1497 | free_percpu(p->stats64); |
cda5c15b NA |
1498 | free_netdev(slave_dev); |
1499 | } | |
1500 | ||
b73adef6 FF |
1501 | static bool dsa_slave_dev_check(struct net_device *dev) |
1502 | { | |
1503 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1504 | } | |
1505 | ||
8e92ab3a VD |
1506 | static int dsa_slave_changeupper(struct net_device *dev, |
1507 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1508 | { |
d945097b | 1509 | struct dsa_port *dp = dsa_slave_to_port(dev); |
8e92ab3a | 1510 | int err = NOTIFY_DONE; |
b73adef6 | 1511 | |
8e92ab3a VD |
1512 | if (netif_is_bridge_master(info->upper_dev)) { |
1513 | if (info->linking) { | |
17d7802b | 1514 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1515 | err = notifier_from_errno(err); |
1516 | } else { | |
17d7802b | 1517 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1518 | err = NOTIFY_OK; |
6debb68a | 1519 | } |
6debb68a | 1520 | } |
b73adef6 | 1521 | |
8e92ab3a | 1522 | return err; |
6debb68a | 1523 | } |
b73adef6 | 1524 | |
cc1d5bda FF |
1525 | static int dsa_slave_upper_vlan_check(struct net_device *dev, |
1526 | struct netdev_notifier_changeupper_info * | |
1527 | info) | |
1528 | { | |
1529 | struct netlink_ext_ack *ext_ack; | |
1530 | struct net_device *slave; | |
1531 | struct dsa_port *dp; | |
1532 | ||
1533 | ext_ack = netdev_notifier_info_to_extack(&info->info); | |
1534 | ||
1535 | if (!is_vlan_dev(dev)) | |
1536 | return NOTIFY_DONE; | |
1537 | ||
1538 | slave = vlan_dev_real_dev(dev); | |
1539 | if (!dsa_slave_dev_check(slave)) | |
1540 | return NOTIFY_DONE; | |
1541 | ||
1542 | dp = dsa_slave_to_port(slave); | |
1543 | if (!dp->bridge_dev) | |
1544 | return NOTIFY_DONE; | |
1545 | ||
1546 | /* Deny enslaving a VLAN device into a VLAN-aware bridge */ | |
1547 | if (br_vlan_enabled(dp->bridge_dev) && | |
1548 | netif_is_bridge_master(info->upper_dev) && info->linking) { | |
1549 | NL_SET_ERR_MSG_MOD(ext_ack, | |
1550 | "Cannot enslave VLAN device into VLAN aware bridge"); | |
1551 | return notifier_from_errno(-EINVAL); | |
1552 | } | |
1553 | ||
1554 | return NOTIFY_DONE; | |
1555 | } | |
1556 | ||
88e4f0ca VD |
1557 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1558 | unsigned long event, void *ptr) | |
6debb68a VD |
1559 | { |
1560 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1561 | ||
cc1d5bda FF |
1562 | if (event == NETDEV_CHANGEUPPER) { |
1563 | if (!dsa_slave_dev_check(dev)) | |
1564 | return dsa_slave_upper_vlan_check(dev, ptr); | |
8e92ab3a | 1565 | |
8e92ab3a | 1566 | return dsa_slave_changeupper(dev, ptr); |
cc1d5bda | 1567 | } |
b73adef6 | 1568 | |
b73adef6 FF |
1569 | return NOTIFY_DONE; |
1570 | } | |
88e4f0ca | 1571 | |
9ed1eced FF |
1572 | static int |
1573 | dsa_slave_switchdev_port_attr_set_event(struct net_device *netdev, | |
1574 | struct switchdev_notifier_port_attr_info *port_attr_info) | |
1575 | { | |
1576 | int err; | |
1577 | ||
1578 | err = dsa_slave_port_attr_set(netdev, port_attr_info->attr, | |
1579 | port_attr_info->trans); | |
1580 | ||
1581 | port_attr_info->handled = true; | |
1582 | return notifier_from_errno(err); | |
1583 | } | |
1584 | ||
c9eb3e0f AS |
1585 | struct dsa_switchdev_event_work { |
1586 | struct work_struct work; | |
1587 | struct switchdev_notifier_fdb_info fdb_info; | |
1588 | struct net_device *dev; | |
1589 | unsigned long event; | |
1590 | }; | |
1591 | ||
1592 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1593 | { | |
1594 | struct dsa_switchdev_event_work *switchdev_work = | |
1595 | container_of(work, struct dsa_switchdev_event_work, work); | |
1596 | struct net_device *dev = switchdev_work->dev; | |
1597 | struct switchdev_notifier_fdb_info *fdb_info; | |
d945097b | 1598 | struct dsa_port *dp = dsa_slave_to_port(dev); |
c9eb3e0f AS |
1599 | int err; |
1600 | ||
1601 | rtnl_lock(); | |
1602 | switch (switchdev_work->event) { | |
1603 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1604 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1605 | if (!fdb_info->added_by_user) |
1606 | break; | |
1607 | ||
d945097b | 1608 | err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1609 | if (err) { |
1610 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1611 | break; | |
1612 | } | |
e9ba0fbc | 1613 | fdb_info->offloaded = true; |
c9eb3e0f | 1614 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, |
6685987c | 1615 | &fdb_info->info, NULL); |
c9eb3e0f AS |
1616 | break; |
1617 | ||
1618 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1619 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1620 | if (!fdb_info->added_by_user) |
1621 | break; | |
1622 | ||
d945097b | 1623 | err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1624 | if (err) { |
1625 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1626 | dev_close(dev); | |
1627 | } | |
1628 | break; | |
1629 | } | |
1630 | rtnl_unlock(); | |
1631 | ||
1632 | kfree(switchdev_work->fdb_info.addr); | |
1633 | kfree(switchdev_work); | |
1634 | dev_put(dev); | |
1635 | } | |
1636 | ||
1637 | static int | |
1638 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1639 | switchdev_work, | |
1640 | const struct switchdev_notifier_fdb_info * | |
1641 | fdb_info) | |
1642 | { | |
1643 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1644 | sizeof(switchdev_work->fdb_info)); | |
1645 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1646 | if (!switchdev_work->fdb_info.addr) | |
1647 | return -ENOMEM; | |
1648 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1649 | fdb_info->addr); | |
1650 | return 0; | |
1651 | } | |
1652 | ||
1653 | /* Called under rcu_read_lock() */ | |
1654 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1655 | unsigned long event, void *ptr) | |
1656 | { | |
1657 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1658 | struct dsa_switchdev_event_work *switchdev_work; | |
1659 | ||
1660 | if (!dsa_slave_dev_check(dev)) | |
1661 | return NOTIFY_DONE; | |
1662 | ||
9ed1eced FF |
1663 | if (event == SWITCHDEV_PORT_ATTR_SET) |
1664 | return dsa_slave_switchdev_port_attr_set_event(dev, ptr); | |
1665 | ||
c9eb3e0f AS |
1666 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); |
1667 | if (!switchdev_work) | |
1668 | return NOTIFY_BAD; | |
1669 | ||
1670 | INIT_WORK(&switchdev_work->work, | |
1671 | dsa_slave_switchdev_event_work); | |
1672 | switchdev_work->dev = dev; | |
1673 | switchdev_work->event = event; | |
1674 | ||
1675 | switch (event) { | |
1676 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1677 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
a37fb855 | 1678 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, ptr)) |
c9eb3e0f AS |
1679 | goto err_fdb_work_init; |
1680 | dev_hold(dev); | |
1681 | break; | |
1682 | default: | |
1683 | kfree(switchdev_work); | |
1684 | return NOTIFY_DONE; | |
1685 | } | |
1686 | ||
1687 | dsa_schedule_work(&switchdev_work->work); | |
1688 | return NOTIFY_OK; | |
1689 | ||
1690 | err_fdb_work_init: | |
1691 | kfree(switchdev_work); | |
1692 | return NOTIFY_BAD; | |
1693 | } | |
1694 | ||
2b239f67 PM |
1695 | static int |
1696 | dsa_slave_switchdev_port_obj_event(unsigned long event, | |
1697 | struct net_device *netdev, | |
1698 | struct switchdev_notifier_port_obj_info *port_obj_info) | |
1699 | { | |
1700 | int err = -EOPNOTSUPP; | |
1701 | ||
1702 | switch (event) { | |
1703 | case SWITCHDEV_PORT_OBJ_ADD: | |
1704 | err = dsa_slave_port_obj_add(netdev, port_obj_info->obj, | |
1705 | port_obj_info->trans); | |
1706 | break; | |
1707 | case SWITCHDEV_PORT_OBJ_DEL: | |
1708 | err = dsa_slave_port_obj_del(netdev, port_obj_info->obj); | |
1709 | break; | |
1710 | } | |
1711 | ||
1712 | port_obj_info->handled = true; | |
1713 | return notifier_from_errno(err); | |
1714 | } | |
1715 | ||
1716 | static int dsa_slave_switchdev_blocking_event(struct notifier_block *unused, | |
1717 | unsigned long event, void *ptr) | |
1718 | { | |
1719 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1720 | ||
1721 | if (!dsa_slave_dev_check(dev)) | |
1722 | return NOTIFY_DONE; | |
1723 | ||
1724 | switch (event) { | |
1725 | case SWITCHDEV_PORT_OBJ_ADD: /* fall through */ | |
1726 | case SWITCHDEV_PORT_OBJ_DEL: | |
1727 | return dsa_slave_switchdev_port_obj_event(event, dev, ptr); | |
9ed1eced FF |
1728 | case SWITCHDEV_PORT_ATTR_SET: |
1729 | return dsa_slave_switchdev_port_attr_set_event(dev, ptr); | |
2b239f67 PM |
1730 | } |
1731 | ||
1732 | return NOTIFY_DONE; | |
1733 | } | |
1734 | ||
88e4f0ca | 1735 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1736 | .notifier_call = dsa_slave_netdevice_event, |
1737 | }; | |
1738 | ||
1739 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1740 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1741 | }; |
1742 | ||
2b239f67 PM |
1743 | static struct notifier_block dsa_slave_switchdev_blocking_notifier = { |
1744 | .notifier_call = dsa_slave_switchdev_blocking_event, | |
1745 | }; | |
1746 | ||
88e4f0ca VD |
1747 | int dsa_slave_register_notifier(void) |
1748 | { | |
2b239f67 | 1749 | struct notifier_block *nb; |
c9eb3e0f AS |
1750 | int err; |
1751 | ||
1752 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1753 | if (err) | |
1754 | return err; | |
1755 | ||
1756 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1757 | if (err) | |
1758 | goto err_switchdev_nb; | |
1759 | ||
2b239f67 PM |
1760 | nb = &dsa_slave_switchdev_blocking_notifier; |
1761 | err = register_switchdev_blocking_notifier(nb); | |
1762 | if (err) | |
1763 | goto err_switchdev_blocking_nb; | |
1764 | ||
c9eb3e0f AS |
1765 | return 0; |
1766 | ||
2b239f67 PM |
1767 | err_switchdev_blocking_nb: |
1768 | unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
c9eb3e0f AS |
1769 | err_switchdev_nb: |
1770 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1771 | return err; | |
88e4f0ca VD |
1772 | } |
1773 | ||
1774 | void dsa_slave_unregister_notifier(void) | |
1775 | { | |
2b239f67 | 1776 | struct notifier_block *nb; |
88e4f0ca VD |
1777 | int err; |
1778 | ||
2b239f67 PM |
1779 | nb = &dsa_slave_switchdev_blocking_notifier; |
1780 | err = unregister_switchdev_blocking_notifier(nb); | |
1781 | if (err) | |
1782 | pr_err("DSA: failed to unregister switchdev blocking notifier (%d)\n", err); | |
1783 | ||
c9eb3e0f AS |
1784 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1785 | if (err) | |
1786 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1787 | ||
88e4f0ca VD |
1788 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1789 | if (err) | |
1790 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1791 | } |