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Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
91da11f8 LB |
2 | /* |
3 | * net/dsa/slave.c - Slave device handling | |
e84665c9 | 4 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
5 | */ |
6 | ||
7 | #include <linux/list.h> | |
df02c6ff | 8 | #include <linux/etherdevice.h> |
b73adef6 | 9 | #include <linux/netdevice.h> |
91da11f8 | 10 | #include <linux/phy.h> |
a2820543 | 11 | #include <linux/phy_fixed.h> |
aab9c406 | 12 | #include <linux/phylink.h> |
0d8bcdd3 FF |
13 | #include <linux/of_net.h> |
14 | #include <linux/of_mdio.h> | |
7f854420 | 15 | #include <linux/mdio.h> |
b73adef6 | 16 | #include <net/rtnetlink.h> |
f50f2127 FF |
17 | #include <net/pkt_cls.h> |
18 | #include <net/tc_act/tc_mirred.h> | |
b73adef6 | 19 | #include <linux/if_bridge.h> |
04ff53f9 | 20 | #include <linux/netpoll.h> |
90af1059 | 21 | #include <linux/ptp_classify.h> |
ea5dd34b | 22 | |
91da11f8 LB |
23 | #include "dsa_priv.h" |
24 | ||
25 | /* slave mii_bus handling ***************************************************/ | |
26 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
27 | { | |
28 | struct dsa_switch *ds = bus->priv; | |
29 | ||
0d8bcdd3 | 30 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 31 | return ds->ops->phy_read(ds, addr, reg); |
91da11f8 LB |
32 | |
33 | return 0xffff; | |
34 | } | |
35 | ||
36 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
37 | { | |
38 | struct dsa_switch *ds = bus->priv; | |
39 | ||
0d8bcdd3 | 40 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 41 | return ds->ops->phy_write(ds, addr, reg, val); |
91da11f8 LB |
42 | |
43 | return 0; | |
44 | } | |
45 | ||
46 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
47 | { | |
48 | ds->slave_mii_bus->priv = (void *)ds; | |
49 | ds->slave_mii_bus->name = "dsa slave smi"; | |
50 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
51 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
0b7b498d | 52 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
49463b7f | 53 | ds->dst->index, ds->index); |
c33063d6 | 54 | ds->slave_mii_bus->parent = ds->dev; |
24df8986 | 55 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
56 | } |
57 | ||
58 | ||
59 | /* slave device handling ****************************************************/ | |
abd2be00 | 60 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 | 61 | { |
d0006b00 | 62 | return dsa_slave_to_master(dev)->ifindex; |
c0840801 LB |
63 | } |
64 | ||
91da11f8 LB |
65 | static int dsa_slave_open(struct net_device *dev) |
66 | { | |
d0006b00 | 67 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 68 | struct dsa_port *dp = dsa_slave_to_port(dev); |
df02c6ff LB |
69 | int err; |
70 | ||
71 | if (!(master->flags & IFF_UP)) | |
72 | return -ENETDOWN; | |
73 | ||
8feedbb4 | 74 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 75 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
76 | if (err < 0) |
77 | goto out; | |
78 | } | |
79 | ||
80 | if (dev->flags & IFF_ALLMULTI) { | |
81 | err = dev_set_allmulti(master, 1); | |
82 | if (err < 0) | |
83 | goto del_unicast; | |
84 | } | |
85 | if (dev->flags & IFF_PROMISC) { | |
86 | err = dev_set_promiscuity(master, 1); | |
87 | if (err < 0) | |
88 | goto clear_allmulti; | |
89 | } | |
90 | ||
8640f8dc | 91 | err = dsa_port_enable_rt(dp, dev->phydev); |
fb8a6a2b VD |
92 | if (err) |
93 | goto clear_promisc; | |
b73adef6 | 94 | |
91da11f8 | 95 | return 0; |
df02c6ff | 96 | |
b2f2af21 FF |
97 | clear_promisc: |
98 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 99 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
100 | clear_allmulti: |
101 | if (dev->flags & IFF_ALLMULTI) | |
102 | dev_set_allmulti(master, -1); | |
103 | del_unicast: | |
8feedbb4 | 104 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 105 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
106 | out: |
107 | return err; | |
91da11f8 LB |
108 | } |
109 | ||
110 | static int dsa_slave_close(struct net_device *dev) | |
111 | { | |
d0006b00 | 112 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 113 | struct dsa_port *dp = dsa_slave_to_port(dev); |
df02c6ff | 114 | |
8640f8dc | 115 | dsa_port_disable_rt(dp); |
6457edfe | 116 | |
df02c6ff | 117 | dev_mc_unsync(master, dev); |
a748ee24 | 118 | dev_uc_unsync(master, dev); |
df02c6ff LB |
119 | if (dev->flags & IFF_ALLMULTI) |
120 | dev_set_allmulti(master, -1); | |
121 | if (dev->flags & IFF_PROMISC) | |
122 | dev_set_promiscuity(master, -1); | |
123 | ||
8feedbb4 | 124 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 125 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 126 | |
91da11f8 LB |
127 | return 0; |
128 | } | |
129 | ||
130 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
131 | { | |
d0006b00 | 132 | struct net_device *master = dsa_slave_to_master(dev); |
17ab4f61 RG |
133 | if (dev->flags & IFF_UP) { |
134 | if (change & IFF_ALLMULTI) | |
135 | dev_set_allmulti(master, | |
136 | dev->flags & IFF_ALLMULTI ? 1 : -1); | |
137 | if (change & IFF_PROMISC) | |
138 | dev_set_promiscuity(master, | |
139 | dev->flags & IFF_PROMISC ? 1 : -1); | |
140 | } | |
91da11f8 LB |
141 | } |
142 | ||
143 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
144 | { | |
d0006b00 | 145 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
146 | |
147 | dev_mc_sync(master, dev); | |
a748ee24 | 148 | dev_uc_sync(master, dev); |
91da11f8 LB |
149 | } |
150 | ||
df02c6ff | 151 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 152 | { |
d0006b00 | 153 | struct net_device *master = dsa_slave_to_master(dev); |
df02c6ff LB |
154 | struct sockaddr *addr = a; |
155 | int err; | |
156 | ||
157 | if (!is_valid_ether_addr(addr->sa_data)) | |
158 | return -EADDRNOTAVAIL; | |
159 | ||
160 | if (!(dev->flags & IFF_UP)) | |
161 | goto out; | |
162 | ||
8feedbb4 | 163 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 164 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
165 | if (err < 0) |
166 | return err; | |
167 | } | |
168 | ||
8feedbb4 | 169 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 170 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
171 | |
172 | out: | |
d08f161a | 173 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
174 | |
175 | return 0; | |
176 | } | |
177 | ||
2bedde1a AS |
178 | struct dsa_slave_dump_ctx { |
179 | struct net_device *dev; | |
180 | struct sk_buff *skb; | |
181 | struct netlink_callback *cb; | |
182 | int idx; | |
183 | }; | |
184 | ||
185 | static int | |
186 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
187 | bool is_static, void *data) | |
188 | { | |
189 | struct dsa_slave_dump_ctx *dump = data; | |
190 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
191 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
192 | struct nlmsghdr *nlh; | |
193 | struct ndmsg *ndm; | |
194 | ||
195 | if (dump->idx < dump->cb->args[2]) | |
196 | goto skip; | |
197 | ||
198 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
199 | sizeof(*ndm), NLM_F_MULTI); | |
200 | if (!nlh) | |
201 | return -EMSGSIZE; | |
202 | ||
203 | ndm = nlmsg_data(nlh); | |
204 | ndm->ndm_family = AF_BRIDGE; | |
205 | ndm->ndm_pad1 = 0; | |
206 | ndm->ndm_pad2 = 0; | |
207 | ndm->ndm_flags = NTF_SELF; | |
208 | ndm->ndm_type = 0; | |
209 | ndm->ndm_ifindex = dump->dev->ifindex; | |
210 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
211 | ||
212 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
213 | goto nla_put_failure; | |
214 | ||
215 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
216 | goto nla_put_failure; | |
217 | ||
218 | nlmsg_end(dump->skb, nlh); | |
219 | ||
220 | skip: | |
221 | dump->idx++; | |
222 | return 0; | |
223 | ||
224 | nla_put_failure: | |
225 | nlmsg_cancel(dump->skb, nlh); | |
226 | return -EMSGSIZE; | |
227 | } | |
228 | ||
229 | static int | |
230 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
231 | struct net_device *dev, struct net_device *filter_dev, | |
232 | int *idx) | |
233 | { | |
d945097b | 234 | struct dsa_port *dp = dsa_slave_to_port(dev); |
2bedde1a AS |
235 | struct dsa_slave_dump_ctx dump = { |
236 | .dev = dev, | |
237 | .skb = skb, | |
238 | .cb = cb, | |
239 | .idx = *idx, | |
240 | }; | |
2bedde1a AS |
241 | int err; |
242 | ||
de40fc5d | 243 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 244 | *idx = dump.idx; |
de40fc5d | 245 | |
2bedde1a AS |
246 | return err; |
247 | } | |
248 | ||
91da11f8 LB |
249 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
250 | { | |
0336369d BS |
251 | struct dsa_slave_priv *p = netdev_priv(dev); |
252 | struct dsa_switch *ds = p->dp->ds; | |
253 | int port = p->dp->index; | |
254 | ||
255 | /* Pass through to switch driver if it supports timestamping */ | |
256 | switch (cmd) { | |
257 | case SIOCGHWTSTAMP: | |
258 | if (ds->ops->port_hwtstamp_get) | |
259 | return ds->ops->port_hwtstamp_get(ds, port, ifr); | |
260 | break; | |
261 | case SIOCSHWTSTAMP: | |
262 | if (ds->ops->port_hwtstamp_set) | |
263 | return ds->ops->port_hwtstamp_set(ds, port, ifr); | |
264 | break; | |
265 | } | |
266 | ||
aab9c406 | 267 | return phylink_mii_ioctl(p->dp->pl, ifr, cmd); |
91da11f8 LB |
268 | } |
269 | ||
35636062 | 270 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 271 | const struct switchdev_attr *attr, |
7ea6eb3f | 272 | struct switchdev_trans *trans) |
35636062 | 273 | { |
d945097b | 274 | struct dsa_port *dp = dsa_slave_to_port(dev); |
b8d866ac | 275 | int ret; |
35636062 SF |
276 | |
277 | switch (attr->id) { | |
1f868398 | 278 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 279 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 280 | break; |
fb2dabad | 281 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
282 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
283 | trans); | |
fb2dabad | 284 | break; |
34a79f63 | 285 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 286 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 287 | break; |
ea87005a FF |
288 | case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: |
289 | ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags, | |
290 | trans); | |
291 | break; | |
57652796 RK |
292 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
293 | ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans); | |
294 | break; | |
08cc83cc VD |
295 | case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER: |
296 | ret = dsa_port_mrouter(dp->cpu_dp, attr->u.mrouter, trans); | |
297 | break; | |
35636062 SF |
298 | default: |
299 | ret = -EOPNOTSUPP; | |
300 | break; | |
301 | } | |
302 | ||
303 | return ret; | |
304 | } | |
305 | ||
bdcff080 VD |
306 | static int dsa_slave_vlan_add(struct net_device *dev, |
307 | const struct switchdev_obj *obj, | |
308 | struct switchdev_trans *trans) | |
309 | { | |
310 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
311 | struct switchdev_obj_port_vlan vlan; | |
312 | int err; | |
313 | ||
314 | if (obj->orig_dev != dev) | |
315 | return -EOPNOTSUPP; | |
316 | ||
c5335d73 VD |
317 | if (dp->bridge_dev && !br_vlan_enabled(dp->bridge_dev)) |
318 | return 0; | |
319 | ||
bdcff080 VD |
320 | vlan = *SWITCHDEV_OBJ_PORT_VLAN(obj); |
321 | ||
322 | err = dsa_port_vlan_add(dp, &vlan, trans); | |
323 | if (err) | |
324 | return err; | |
325 | ||
b9499904 VD |
326 | /* We need the dedicated CPU port to be a member of the VLAN as well. |
327 | * Even though drivers often handle CPU membership in special ways, | |
328 | * it doesn't make sense to program a PVID, so clear this flag. | |
329 | */ | |
330 | vlan.flags &= ~BRIDGE_VLAN_INFO_PVID; | |
331 | ||
7e1741b4 VD |
332 | err = dsa_port_vlan_add(dp->cpu_dp, &vlan, trans); |
333 | if (err) | |
334 | return err; | |
335 | ||
bdcff080 VD |
336 | return 0; |
337 | } | |
338 | ||
ba14d9eb | 339 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 340 | const struct switchdev_obj *obj, |
79b139f4 VD |
341 | struct switchdev_trans *trans, |
342 | struct netlink_ext_ack *extack) | |
ba14d9eb | 343 | { |
d945097b | 344 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
345 | int err; |
346 | ||
347 | /* For the prepare phase, ensure the full set of changes is feasable in | |
348 | * one go in order to signal a failure properly. If an operation is not | |
349 | * supported, return -EOPNOTSUPP. | |
350 | */ | |
351 | ||
9e8f4a54 | 352 | switch (obj->id) { |
8df30255 | 353 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
79b139f4 VD |
354 | if (obj->orig_dev != dev) |
355 | return -EOPNOTSUPP; | |
bcebb976 | 356 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
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_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj), | |
363 | trans); | |
364 | break; | |
57d80838 | 365 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
bdcff080 | 366 | err = dsa_slave_vlan_add(dev, obj, trans); |
11149536 | 367 | break; |
ba14d9eb VD |
368 | default: |
369 | err = -EOPNOTSUPP; | |
370 | break; | |
371 | } | |
372 | ||
373 | return err; | |
374 | } | |
375 | ||
bdcff080 VD |
376 | static int dsa_slave_vlan_del(struct net_device *dev, |
377 | const struct switchdev_obj *obj) | |
378 | { | |
379 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
380 | ||
381 | if (obj->orig_dev != dev) | |
382 | return -EOPNOTSUPP; | |
383 | ||
c5335d73 VD |
384 | if (dp->bridge_dev && !br_vlan_enabled(dp->bridge_dev)) |
385 | return 0; | |
386 | ||
7e1741b4 VD |
387 | /* Do not deprogram the CPU port as it may be shared with other user |
388 | * ports which can be members of this VLAN as well. | |
389 | */ | |
bdcff080 VD |
390 | return dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
391 | } | |
392 | ||
ba14d9eb | 393 | static int dsa_slave_port_obj_del(struct net_device *dev, |
648b4a99 | 394 | const struct switchdev_obj *obj) |
ba14d9eb | 395 | { |
d945097b | 396 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
397 | int err; |
398 | ||
9e8f4a54 | 399 | switch (obj->id) { |
8df30255 | 400 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
79b139f4 VD |
401 | if (obj->orig_dev != dev) |
402 | return -EOPNOTSUPP; | |
bcebb976 | 403 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 404 | break; |
5f4dbc50 AL |
405 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
406 | /* DSA can directly translate this to a normal MDB add, | |
407 | * but on the CPU port. | |
408 | */ | |
409 | err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
410 | break; | |
57d80838 | 411 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
bdcff080 | 412 | err = dsa_slave_vlan_del(dev, obj); |
11149536 | 413 | break; |
ba14d9eb VD |
414 | default: |
415 | err = -EOPNOTSUPP; | |
416 | break; | |
417 | } | |
418 | ||
419 | return err; | |
420 | } | |
421 | ||
929d6c14 FF |
422 | static int dsa_slave_get_port_parent_id(struct net_device *dev, |
423 | struct netdev_phys_item_id *ppid) | |
b73adef6 | 424 | { |
d945097b VD |
425 | struct dsa_port *dp = dsa_slave_to_port(dev); |
426 | struct dsa_switch *ds = dp->ds; | |
a42c8e33 | 427 | struct dsa_switch_tree *dst = ds->dst; |
b73adef6 | 428 | |
15b04ace JP |
429 | /* For non-legacy ports, devlink is used and it takes |
430 | * care of the name generation. This ndo implementation | |
431 | * should be removed with legacy support. | |
432 | */ | |
433 | if (dp->ds->devlink) | |
434 | return -EOPNOTSUPP; | |
435 | ||
929d6c14 FF |
436 | ppid->id_len = sizeof(dst->index); |
437 | memcpy(&ppid->id, &dst->index, ppid->id_len); | |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
4fa7b718 VD |
442 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
443 | struct sk_buff *skb) | |
04ff53f9 FF |
444 | { |
445 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
446 | struct dsa_slave_priv *p = netdev_priv(dev); |
447 | ||
04ff53f9 FF |
448 | if (p->netpoll) |
449 | netpoll_send_skb(p->netpoll, skb); | |
450 | #else | |
451 | BUG(); | |
452 | #endif | |
453 | return NETDEV_TX_OK; | |
454 | } | |
455 | ||
90af1059 BS |
456 | static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p, |
457 | struct sk_buff *skb) | |
458 | { | |
459 | struct dsa_switch *ds = p->dp->ds; | |
460 | struct sk_buff *clone; | |
461 | unsigned int type; | |
462 | ||
463 | type = ptp_classify_raw(skb); | |
464 | if (type == PTP_CLASS_NONE) | |
465 | return; | |
466 | ||
467 | if (!ds->ops->port_txtstamp) | |
468 | return; | |
469 | ||
470 | clone = skb_clone_sk(skb); | |
471 | if (!clone) | |
472 | return; | |
473 | ||
146d442c VO |
474 | DSA_SKB_CB(skb)->clone = clone; |
475 | ||
90af1059 BS |
476 | if (ds->ops->port_txtstamp(ds, p->dp->index, clone, type)) |
477 | return; | |
478 | ||
479 | kfree_skb(clone); | |
480 | } | |
481 | ||
97a69a0d VO |
482 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev) |
483 | { | |
484 | /* SKB for netpoll still need to be mangled with the protocol-specific | |
485 | * tag to be successfully transmitted | |
486 | */ | |
487 | if (unlikely(netpoll_tx_running(dev))) | |
488 | return dsa_slave_netpoll_send_skb(dev, skb); | |
489 | ||
490 | /* Queue the SKB for transmission on the parent interface, but | |
491 | * do not modify its EtherType | |
492 | */ | |
493 | skb->dev = dsa_slave_to_master(dev); | |
494 | dev_queue_xmit(skb); | |
495 | ||
496 | return NETDEV_TX_OK; | |
497 | } | |
498 | EXPORT_SYMBOL_GPL(dsa_enqueue_skb); | |
499 | ||
3e8a72d1 FF |
500 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
501 | { | |
502 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 503 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 504 | struct sk_buff *nskb; |
3e8a72d1 | 505 | |
5f6b4e14 FF |
506 | s = this_cpu_ptr(p->stats64); |
507 | u64_stats_update_begin(&s->syncp); | |
508 | s->tx_packets++; | |
509 | s->tx_bytes += skb->len; | |
510 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 511 | |
146d442c | 512 | DSA_SKB_CB(skb)->clone = NULL; |
87671375 | 513 | |
90af1059 BS |
514 | /* Identify PTP protocol packets, clone them, and pass them to the |
515 | * switch driver | |
516 | */ | |
517 | dsa_skb_tx_timestamp(p, skb); | |
518 | ||
fe47d563 VD |
519 | /* Transmit function may have to reallocate the original SKB, |
520 | * in which case it must have freed it. Only free it here on error. | |
521 | */ | |
4ed70ce9 | 522 | nskb = p->xmit(skb, dev); |
fe47d563 | 523 | if (!nskb) { |
a68578c2 | 524 | kfree_skb(skb); |
4ed70ce9 | 525 | return NETDEV_TX_OK; |
fe47d563 | 526 | } |
5aed85ce | 527 | |
97a69a0d VO |
528 | return dsa_enqueue_skb(nskb, dev); |
529 | } | |
04ff53f9 | 530 | |
91da11f8 | 531 | /* ethtool operations *******************************************************/ |
91da11f8 | 532 | |
91da11f8 LB |
533 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
534 | struct ethtool_drvinfo *drvinfo) | |
535 | { | |
7826d43f | 536 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
537 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
538 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
539 | } |
540 | ||
3d762a0f GR |
541 | static int dsa_slave_get_regs_len(struct net_device *dev) |
542 | { | |
d945097b VD |
543 | struct dsa_port *dp = dsa_slave_to_port(dev); |
544 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 545 | |
9d490b4e | 546 | if (ds->ops->get_regs_len) |
d945097b | 547 | return ds->ops->get_regs_len(ds, dp->index); |
3d762a0f GR |
548 | |
549 | return -EOPNOTSUPP; | |
550 | } | |
551 | ||
552 | static void | |
553 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
554 | { | |
d945097b VD |
555 | struct dsa_port *dp = dsa_slave_to_port(dev); |
556 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 557 | |
9d490b4e | 558 | if (ds->ops->get_regs) |
d945097b | 559 | ds->ops->get_regs(ds, dp->index, regs, _p); |
3d762a0f GR |
560 | } |
561 | ||
aab9c406 FF |
562 | static int dsa_slave_nway_reset(struct net_device *dev) |
563 | { | |
564 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
565 | ||
566 | return phylink_ethtool_nway_reset(dp->pl); | |
567 | } | |
568 | ||
6793abb4 GR |
569 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
570 | { | |
d945097b VD |
571 | struct dsa_port *dp = dsa_slave_to_port(dev); |
572 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 573 | |
0e576044 | 574 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 575 | return ds->cd->eeprom_len; |
6793abb4 | 576 | |
9d490b4e VD |
577 | if (ds->ops->get_eeprom_len) |
578 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
579 | |
580 | return 0; | |
581 | } | |
582 | ||
583 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
584 | struct ethtool_eeprom *eeprom, u8 *data) | |
585 | { | |
d945097b VD |
586 | struct dsa_port *dp = dsa_slave_to_port(dev); |
587 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 588 | |
9d490b4e VD |
589 | if (ds->ops->get_eeprom) |
590 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
591 | |
592 | return -EOPNOTSUPP; | |
593 | } | |
594 | ||
595 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
596 | struct ethtool_eeprom *eeprom, u8 *data) | |
597 | { | |
d945097b VD |
598 | struct dsa_port *dp = dsa_slave_to_port(dev); |
599 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 600 | |
9d490b4e VD |
601 | if (ds->ops->set_eeprom) |
602 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
603 | |
604 | return -EOPNOTSUPP; | |
605 | } | |
606 | ||
91da11f8 LB |
607 | static void dsa_slave_get_strings(struct net_device *dev, |
608 | uint32_t stringset, uint8_t *data) | |
609 | { | |
d945097b VD |
610 | struct dsa_port *dp = dsa_slave_to_port(dev); |
611 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
612 | |
613 | if (stringset == ETH_SS_STATS) { | |
614 | int len = ETH_GSTRING_LEN; | |
615 | ||
616 | strncpy(data, "tx_packets", len); | |
617 | strncpy(data + len, "tx_bytes", len); | |
618 | strncpy(data + 2 * len, "rx_packets", len); | |
619 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 620 | if (ds->ops->get_strings) |
89f09048 FF |
621 | ds->ops->get_strings(ds, dp->index, stringset, |
622 | data + 4 * len); | |
91da11f8 LB |
623 | } |
624 | } | |
625 | ||
626 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
627 | struct ethtool_stats *stats, | |
628 | uint64_t *data) | |
629 | { | |
d945097b | 630 | struct dsa_port *dp = dsa_slave_to_port(dev); |
91da11f8 | 631 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 632 | struct dsa_switch *ds = dp->ds; |
5f6b4e14 | 633 | struct pcpu_sw_netstats *s; |
f613ed66 | 634 | unsigned int start; |
5f6b4e14 FF |
635 | int i; |
636 | ||
637 | for_each_possible_cpu(i) { | |
638 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
639 | ||
640 | s = per_cpu_ptr(p->stats64, i); | |
641 | do { | |
642 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
643 | tx_packets = s->tx_packets; | |
644 | tx_bytes = s->tx_bytes; | |
645 | rx_packets = s->rx_packets; | |
646 | rx_bytes = s->rx_bytes; | |
647 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
648 | data[0] += tx_packets; | |
649 | data[1] += tx_bytes; | |
650 | data[2] += rx_packets; | |
651 | data[3] += rx_bytes; | |
652 | } | |
9d490b4e | 653 | if (ds->ops->get_ethtool_stats) |
d945097b | 654 | ds->ops->get_ethtool_stats(ds, dp->index, data + 4); |
91da11f8 LB |
655 | } |
656 | ||
657 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
658 | { | |
d945097b VD |
659 | struct dsa_port *dp = dsa_slave_to_port(dev); |
660 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
661 | |
662 | if (sset == ETH_SS_STATS) { | |
663 | int count; | |
664 | ||
665 | count = 4; | |
9d490b4e | 666 | if (ds->ops->get_sset_count) |
89f09048 | 667 | count += ds->ops->get_sset_count(ds, dp->index, sset); |
91da11f8 LB |
668 | |
669 | return count; | |
670 | } | |
671 | ||
672 | return -EOPNOTSUPP; | |
673 | } | |
674 | ||
19e57c4e FF |
675 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
676 | { | |
d945097b VD |
677 | struct dsa_port *dp = dsa_slave_to_port(dev); |
678 | struct dsa_switch *ds = dp->ds; | |
19e57c4e | 679 | |
aab9c406 FF |
680 | phylink_ethtool_get_wol(dp->pl, w); |
681 | ||
9d490b4e | 682 | if (ds->ops->get_wol) |
d945097b | 683 | ds->ops->get_wol(ds, dp->index, w); |
19e57c4e FF |
684 | } |
685 | ||
686 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
687 | { | |
d945097b VD |
688 | struct dsa_port *dp = dsa_slave_to_port(dev); |
689 | struct dsa_switch *ds = dp->ds; | |
19e57c4e FF |
690 | int ret = -EOPNOTSUPP; |
691 | ||
aab9c406 FF |
692 | phylink_ethtool_set_wol(dp->pl, w); |
693 | ||
9d490b4e | 694 | if (ds->ops->set_wol) |
d945097b | 695 | ret = ds->ops->set_wol(ds, dp->index, w); |
19e57c4e FF |
696 | |
697 | return ret; | |
698 | } | |
699 | ||
7905288f FF |
700 | static int dsa_slave_set_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->set_mac_eee) |
7905288f FF |
711 | return -EOPNOTSUPP; |
712 | ||
d945097b | 713 | ret = ds->ops->set_mac_eee(ds, dp->index, e); |
7905288f FF |
714 | if (ret) |
715 | return ret; | |
716 | ||
aab9c406 | 717 | return phylink_ethtool_set_eee(dp->pl, e); |
7905288f FF |
718 | } |
719 | ||
720 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
721 | { | |
d945097b VD |
722 | struct dsa_port *dp = dsa_slave_to_port(dev); |
723 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
724 | int ret; |
725 | ||
7b9cc738 | 726 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 727 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
728 | return -ENODEV; |
729 | ||
08f50061 | 730 | if (!ds->ops->get_mac_eee) |
7905288f FF |
731 | return -EOPNOTSUPP; |
732 | ||
d945097b | 733 | ret = ds->ops->get_mac_eee(ds, dp->index, e); |
7905288f FF |
734 | if (ret) |
735 | return ret; | |
736 | ||
aab9c406 FF |
737 | return phylink_ethtool_get_eee(dp->pl, e); |
738 | } | |
739 | ||
740 | static int dsa_slave_get_link_ksettings(struct net_device *dev, | |
741 | struct ethtool_link_ksettings *cmd) | |
742 | { | |
743 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
744 | ||
745 | return phylink_ethtool_ksettings_get(dp->pl, cmd); | |
746 | } | |
747 | ||
748 | static int dsa_slave_set_link_ksettings(struct net_device *dev, | |
749 | const struct ethtool_link_ksettings *cmd) | |
750 | { | |
751 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
752 | ||
753 | return phylink_ethtool_ksettings_set(dp->pl, cmd); | |
7905288f FF |
754 | } |
755 | ||
a2a1a13b HK |
756 | static void dsa_slave_get_pauseparam(struct net_device *dev, |
757 | struct ethtool_pauseparam *pause) | |
758 | { | |
759 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
760 | ||
761 | phylink_ethtool_get_pauseparam(dp->pl, pause); | |
762 | } | |
763 | ||
764 | static int dsa_slave_set_pauseparam(struct net_device *dev, | |
765 | struct ethtool_pauseparam *pause) | |
766 | { | |
767 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
768 | ||
769 | return phylink_ethtool_set_pauseparam(dp->pl, pause); | |
770 | } | |
771 | ||
04ff53f9 FF |
772 | #ifdef CONFIG_NET_POLL_CONTROLLER |
773 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
774 | struct netpoll_info *ni) | |
775 | { | |
d0006b00 | 776 | struct net_device *master = dsa_slave_to_master(dev); |
04ff53f9 | 777 | struct dsa_slave_priv *p = netdev_priv(dev); |
04ff53f9 FF |
778 | struct netpoll *netpoll; |
779 | int err = 0; | |
780 | ||
781 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
782 | if (!netpoll) | |
783 | return -ENOMEM; | |
784 | ||
785 | err = __netpoll_setup(netpoll, master); | |
786 | if (err) { | |
787 | kfree(netpoll); | |
788 | goto out; | |
789 | } | |
790 | ||
791 | p->netpoll = netpoll; | |
792 | out: | |
793 | return err; | |
794 | } | |
795 | ||
796 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
797 | { | |
798 | struct dsa_slave_priv *p = netdev_priv(dev); | |
799 | struct netpoll *netpoll = p->netpoll; | |
800 | ||
801 | if (!netpoll) | |
802 | return; | |
803 | ||
804 | p->netpoll = NULL; | |
805 | ||
c9fbd71f | 806 | __netpoll_free(netpoll); |
04ff53f9 FF |
807 | } |
808 | ||
809 | static void dsa_slave_poll_controller(struct net_device *dev) | |
810 | { | |
811 | } | |
812 | #endif | |
813 | ||
44bb765c FF |
814 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
815 | char *name, size_t len) | |
816 | { | |
d945097b | 817 | struct dsa_port *dp = dsa_slave_to_port(dev); |
44bb765c | 818 | |
d484210b JP |
819 | /* For non-legacy ports, devlink is used and it takes |
820 | * care of the name generation. This ndo implementation | |
821 | * should be removed with legacy support. | |
822 | */ | |
823 | if (dp->ds->devlink) | |
824 | return -EOPNOTSUPP; | |
825 | ||
d945097b | 826 | if (snprintf(name, len, "p%d", dp->index) >= len) |
44bb765c | 827 | return -EINVAL; |
3a543ef4 FF |
828 | |
829 | return 0; | |
830 | } | |
831 | ||
f50f2127 | 832 | static struct dsa_mall_tc_entry * |
4fa7b718 | 833 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 834 | { |
4fa7b718 | 835 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
836 | struct dsa_mall_tc_entry *mall_tc_entry; |
837 | ||
838 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
839 | if (mall_tc_entry->cookie == cookie) | |
840 | return mall_tc_entry; | |
841 | ||
842 | return NULL; | |
843 | } | |
844 | ||
845 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
846 | struct tc_cls_matchall_offload *cls, |
847 | bool ingress) | |
848 | { | |
d945097b | 849 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 FF |
850 | struct dsa_slave_priv *p = netdev_priv(dev); |
851 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 852 | __be16 protocol = cls->common.protocol; |
d945097b | 853 | struct dsa_switch *ds = dp->ds; |
9681e8b3 | 854 | struct flow_action_entry *act; |
d945097b | 855 | struct dsa_port *to_dp; |
f50f2127 | 856 | int err = -EOPNOTSUPP; |
f50f2127 FF |
857 | |
858 | if (!ds->ops->port_mirror_add) | |
859 | return err; | |
860 | ||
9681e8b3 | 861 | if (!flow_offload_has_one_action(&cls->rule->action)) |
f50f2127 FF |
862 | return err; |
863 | ||
319a1d19 JP |
864 | if (!flow_action_basic_hw_stats_types_check(&cls->rule->action, |
865 | cls->common.extack)) | |
866 | return err; | |
867 | ||
9681e8b3 | 868 | act = &cls->rule->action.entries[0]; |
f50f2127 | 869 | |
9681e8b3 | 870 | if (act->id == FLOW_ACTION_MIRRED && protocol == htons(ETH_P_ALL)) { |
f50f2127 FF |
871 | struct dsa_mall_mirror_tc_entry *mirror; |
872 | ||
9681e8b3 | 873 | if (!act->dev) |
f50f2127 FF |
874 | return -EINVAL; |
875 | ||
9681e8b3 | 876 | if (!dsa_slave_dev_check(act->dev)) |
f50f2127 FF |
877 | return -EOPNOTSUPP; |
878 | ||
879 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
880 | if (!mall_tc_entry) | |
881 | return -ENOMEM; | |
882 | ||
883 | mall_tc_entry->cookie = cls->cookie; | |
884 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
885 | mirror = &mall_tc_entry->mirror; | |
886 | ||
9681e8b3 | 887 | to_dp = dsa_slave_to_port(act->dev); |
f50f2127 | 888 | |
d945097b | 889 | mirror->to_local_port = to_dp->index; |
f50f2127 FF |
890 | mirror->ingress = ingress; |
891 | ||
d945097b | 892 | err = ds->ops->port_mirror_add(ds, dp->index, mirror, ingress); |
f50f2127 FF |
893 | if (err) { |
894 | kfree(mall_tc_entry); | |
895 | return err; | |
896 | } | |
897 | ||
898 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
899 | } | |
900 | ||
901 | return 0; | |
902 | } | |
903 | ||
904 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
905 | struct tc_cls_matchall_offload *cls) | |
906 | { | |
d945097b | 907 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 | 908 | struct dsa_mall_tc_entry *mall_tc_entry; |
d945097b | 909 | struct dsa_switch *ds = dp->ds; |
f50f2127 FF |
910 | |
911 | if (!ds->ops->port_mirror_del) | |
912 | return; | |
913 | ||
4fa7b718 | 914 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
915 | if (!mall_tc_entry) |
916 | return; | |
917 | ||
918 | list_del(&mall_tc_entry->list); | |
919 | ||
920 | switch (mall_tc_entry->type) { | |
921 | case DSA_PORT_MALL_MIRROR: | |
d945097b | 922 | ds->ops->port_mirror_del(ds, dp->index, &mall_tc_entry->mirror); |
f50f2127 FF |
923 | break; |
924 | default: | |
925 | WARN_ON(1); | |
926 | } | |
927 | ||
928 | kfree(mall_tc_entry); | |
929 | } | |
930 | ||
3fbae382 | 931 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
6b3eb752 JP |
932 | struct tc_cls_matchall_offload *cls, |
933 | bool ingress) | |
f50f2127 | 934 | { |
5fd9fc4e | 935 | if (cls->common.chain_index) |
a5fcf8a6 | 936 | return -EOPNOTSUPP; |
f50f2127 | 937 | |
3fbae382 JP |
938 | switch (cls->command) { |
939 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 940 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
941 | case TC_CLSMATCHALL_DESTROY: |
942 | dsa_slave_del_cls_matchall(dev, cls); | |
943 | return 0; | |
944 | default: | |
945 | return -EOPNOTSUPP; | |
946 | } | |
947 | } | |
948 | ||
ed11bb1f VO |
949 | static int dsa_slave_add_cls_flower(struct net_device *dev, |
950 | struct flow_cls_offload *cls, | |
951 | bool ingress) | |
952 | { | |
953 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
954 | struct dsa_switch *ds = dp->ds; | |
955 | int port = dp->index; | |
956 | ||
957 | if (!ds->ops->cls_flower_add) | |
958 | return -EOPNOTSUPP; | |
959 | ||
960 | return ds->ops->cls_flower_add(ds, port, cls, ingress); | |
961 | } | |
962 | ||
963 | static int dsa_slave_del_cls_flower(struct net_device *dev, | |
964 | struct flow_cls_offload *cls, | |
965 | bool ingress) | |
966 | { | |
967 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
968 | struct dsa_switch *ds = dp->ds; | |
969 | int port = dp->index; | |
970 | ||
971 | if (!ds->ops->cls_flower_del) | |
972 | return -EOPNOTSUPP; | |
973 | ||
974 | return ds->ops->cls_flower_del(ds, port, cls, ingress); | |
975 | } | |
976 | ||
977 | static int dsa_slave_stats_cls_flower(struct net_device *dev, | |
978 | struct flow_cls_offload *cls, | |
979 | bool ingress) | |
980 | { | |
981 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
982 | struct dsa_switch *ds = dp->ds; | |
983 | int port = dp->index; | |
984 | ||
985 | if (!ds->ops->cls_flower_stats) | |
986 | return -EOPNOTSUPP; | |
987 | ||
988 | return ds->ops->cls_flower_stats(ds, port, cls, ingress); | |
989 | } | |
990 | ||
991 | static int dsa_slave_setup_tc_cls_flower(struct net_device *dev, | |
992 | struct flow_cls_offload *cls, | |
993 | bool ingress) | |
994 | { | |
995 | switch (cls->command) { | |
996 | case FLOW_CLS_REPLACE: | |
997 | return dsa_slave_add_cls_flower(dev, cls, ingress); | |
998 | case FLOW_CLS_DESTROY: | |
999 | return dsa_slave_del_cls_flower(dev, cls, ingress); | |
1000 | case FLOW_CLS_STATS: | |
1001 | return dsa_slave_stats_cls_flower(dev, cls, ingress); | |
1002 | default: | |
1003 | return -EOPNOTSUPP; | |
1004 | } | |
1005 | } | |
1006 | ||
6b3eb752 JP |
1007 | static int dsa_slave_setup_tc_block_cb(enum tc_setup_type type, void *type_data, |
1008 | void *cb_priv, bool ingress) | |
1009 | { | |
1010 | struct net_device *dev = cb_priv; | |
1011 | ||
44ae12a7 JP |
1012 | if (!tc_can_offload(dev)) |
1013 | return -EOPNOTSUPP; | |
1014 | ||
6b3eb752 JP |
1015 | switch (type) { |
1016 | case TC_SETUP_CLSMATCHALL: | |
1017 | return dsa_slave_setup_tc_cls_matchall(dev, type_data, ingress); | |
ed11bb1f VO |
1018 | case TC_SETUP_CLSFLOWER: |
1019 | return dsa_slave_setup_tc_cls_flower(dev, type_data, ingress); | |
6b3eb752 JP |
1020 | default: |
1021 | return -EOPNOTSUPP; | |
1022 | } | |
1023 | } | |
1024 | ||
1025 | static int dsa_slave_setup_tc_block_cb_ig(enum tc_setup_type type, | |
1026 | void *type_data, void *cb_priv) | |
1027 | { | |
1028 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, true); | |
1029 | } | |
1030 | ||
1031 | static int dsa_slave_setup_tc_block_cb_eg(enum tc_setup_type type, | |
1032 | void *type_data, void *cb_priv) | |
1033 | { | |
1034 | return dsa_slave_setup_tc_block_cb(type, type_data, cb_priv, false); | |
1035 | } | |
1036 | ||
955bcb6e PNA |
1037 | static LIST_HEAD(dsa_slave_block_cb_list); |
1038 | ||
6b3eb752 | 1039 | static int dsa_slave_setup_tc_block(struct net_device *dev, |
955bcb6e | 1040 | struct flow_block_offload *f) |
6b3eb752 | 1041 | { |
955bcb6e | 1042 | struct flow_block_cb *block_cb; |
a7323311 | 1043 | flow_setup_cb_t *cb; |
6b3eb752 | 1044 | |
32f8c409 | 1045 | if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) |
6b3eb752 | 1046 | cb = dsa_slave_setup_tc_block_cb_ig; |
32f8c409 | 1047 | else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) |
6b3eb752 JP |
1048 | cb = dsa_slave_setup_tc_block_cb_eg; |
1049 | else | |
1050 | return -EOPNOTSUPP; | |
1051 | ||
955bcb6e PNA |
1052 | f->driver_block_list = &dsa_slave_block_cb_list; |
1053 | ||
6b3eb752 | 1054 | switch (f->command) { |
9c0e189e | 1055 | case FLOW_BLOCK_BIND: |
0d4fd02e PNA |
1056 | if (flow_block_cb_is_busy(cb, dev, &dsa_slave_block_cb_list)) |
1057 | return -EBUSY; | |
1058 | ||
0c7294dd | 1059 | block_cb = flow_block_cb_alloc(cb, dev, dev, NULL); |
955bcb6e PNA |
1060 | if (IS_ERR(block_cb)) |
1061 | return PTR_ERR(block_cb); | |
1062 | ||
1063 | flow_block_cb_add(block_cb, f); | |
1064 | list_add_tail(&block_cb->driver_list, &dsa_slave_block_cb_list); | |
1065 | return 0; | |
9c0e189e | 1066 | case FLOW_BLOCK_UNBIND: |
14bfb13f | 1067 | block_cb = flow_block_cb_lookup(f->block, cb, dev); |
955bcb6e PNA |
1068 | if (!block_cb) |
1069 | return -ENOENT; | |
1070 | ||
1071 | flow_block_cb_remove(block_cb, f); | |
1072 | list_del(&block_cb->driver_list); | |
6b3eb752 JP |
1073 | return 0; |
1074 | default: | |
1075 | return -EOPNOTSUPP; | |
1076 | } | |
1077 | } | |
1078 | ||
3fbae382 | 1079 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, |
de4784ca | 1080 | void *type_data) |
3fbae382 | 1081 | { |
47d23af2 VO |
1082 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1083 | struct dsa_switch *ds = dp->ds; | |
1084 | ||
1085 | if (type == TC_SETUP_BLOCK) | |
6b3eb752 | 1086 | return dsa_slave_setup_tc_block(dev, type_data); |
47d23af2 VO |
1087 | |
1088 | if (!ds->ops->port_setup_tc) | |
a5fcf8a6 | 1089 | return -EOPNOTSUPP; |
47d23af2 VO |
1090 | |
1091 | return ds->ops->port_setup_tc(ds, dp->index, type, type_data); | |
f50f2127 FF |
1092 | } |
1093 | ||
f613ed66 FF |
1094 | static void dsa_slave_get_stats64(struct net_device *dev, |
1095 | struct rtnl_link_stats64 *stats) | |
1096 | { | |
1097 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 1098 | struct pcpu_sw_netstats *s; |
f613ed66 | 1099 | unsigned int start; |
5f6b4e14 | 1100 | int i; |
f613ed66 FF |
1101 | |
1102 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
1103 | for_each_possible_cpu(i) { |
1104 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
1105 | ||
1106 | s = per_cpu_ptr(p->stats64, i); | |
1107 | do { | |
1108 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
1109 | tx_packets = s->tx_packets; | |
1110 | tx_bytes = s->tx_bytes; | |
1111 | rx_packets = s->rx_packets; | |
1112 | rx_bytes = s->rx_bytes; | |
1113 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
1114 | ||
1115 | stats->tx_packets += tx_packets; | |
1116 | stats->tx_bytes += tx_bytes; | |
1117 | stats->rx_packets += rx_packets; | |
1118 | stats->rx_bytes += rx_bytes; | |
1119 | } | |
f613ed66 FF |
1120 | } |
1121 | ||
bf9f2648 FF |
1122 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
1123 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
1124 | { | |
d945097b VD |
1125 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1126 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
1127 | |
1128 | if (!ds->ops->get_rxnfc) | |
1129 | return -EOPNOTSUPP; | |
1130 | ||
d945097b | 1131 | return ds->ops->get_rxnfc(ds, dp->index, nfc, rule_locs); |
bf9f2648 FF |
1132 | } |
1133 | ||
1134 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
1135 | struct ethtool_rxnfc *nfc) | |
1136 | { | |
d945097b VD |
1137 | struct dsa_port *dp = dsa_slave_to_port(dev); |
1138 | struct dsa_switch *ds = dp->ds; | |
bf9f2648 FF |
1139 | |
1140 | if (!ds->ops->set_rxnfc) | |
1141 | return -EOPNOTSUPP; | |
1142 | ||
d945097b | 1143 | return ds->ops->set_rxnfc(ds, dp->index, nfc); |
bf9f2648 FF |
1144 | } |
1145 | ||
0336369d BS |
1146 | static int dsa_slave_get_ts_info(struct net_device *dev, |
1147 | struct ethtool_ts_info *ts) | |
1148 | { | |
1149 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1150 | struct dsa_switch *ds = p->dp->ds; | |
1151 | ||
1152 | if (!ds->ops->get_ts_info) | |
1153 | return -EOPNOTSUPP; | |
1154 | ||
1155 | return ds->ops->get_ts_info(ds, p->dp->index, ts); | |
1156 | } | |
1157 | ||
061f6a50 FF |
1158 | static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto, |
1159 | u16 vid) | |
1160 | { | |
1161 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
061f6a50 FF |
1162 | struct bridge_vlan_info info; |
1163 | int ret; | |
1164 | ||
1165 | /* Check for a possible bridge VLAN entry now since there is no | |
1166 | * need to emulate the switchdev prepare + commit phase. | |
1167 | */ | |
1168 | if (dp->bridge_dev) { | |
c5335d73 VD |
1169 | if (!br_vlan_enabled(dp->bridge_dev)) |
1170 | return 0; | |
1171 | ||
061f6a50 FF |
1172 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the |
1173 | * device, respectively the VID is not found, returning | |
1174 | * 0 means success, which is a failure for us here. | |
1175 | */ | |
1176 | ret = br_vlan_get_info(dp->bridge_dev, vid, &info); | |
1177 | if (ret == 0) | |
1178 | return -EBUSY; | |
1179 | } | |
1180 | ||
cf360866 | 1181 | ret = dsa_port_vid_add(dp, vid, 0); |
9b236d2a | 1182 | if (ret) |
cf360866 VD |
1183 | return ret; |
1184 | ||
7e1741b4 | 1185 | ret = dsa_port_vid_add(dp->cpu_dp, vid, 0); |
9b236d2a | 1186 | if (ret) |
7e1741b4 VD |
1187 | return ret; |
1188 | ||
cf360866 | 1189 | return 0; |
061f6a50 FF |
1190 | } |
1191 | ||
1192 | static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, | |
1193 | u16 vid) | |
1194 | { | |
1195 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
061f6a50 FF |
1196 | struct bridge_vlan_info info; |
1197 | int ret; | |
1198 | ||
1199 | /* Check for a possible bridge VLAN entry now since there is no | |
1200 | * need to emulate the switchdev prepare + commit phase. | |
1201 | */ | |
1202 | if (dp->bridge_dev) { | |
c5335d73 VD |
1203 | if (!br_vlan_enabled(dp->bridge_dev)) |
1204 | return 0; | |
1205 | ||
061f6a50 FF |
1206 | /* br_vlan_get_info() returns -EINVAL or -ENOENT if the |
1207 | * device, respectively the VID is not found, returning | |
1208 | * 0 means success, which is a failure for us here. | |
1209 | */ | |
1210 | ret = br_vlan_get_info(dp->bridge_dev, vid, &info); | |
1211 | if (ret == 0) | |
1212 | return -EBUSY; | |
1213 | } | |
1214 | ||
7e1741b4 VD |
1215 | /* Do not deprogram the CPU port as it may be shared with other user |
1216 | * ports which can be members of this VLAN as well. | |
1217 | */ | |
9b236d2a | 1218 | return dsa_port_vid_del(dp, vid); |
061f6a50 FF |
1219 | } |
1220 | ||
91da11f8 | 1221 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 1222 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
1223 | .get_regs_len = dsa_slave_get_regs_len, |
1224 | .get_regs = dsa_slave_get_regs, | |
aab9c406 | 1225 | .nway_reset = dsa_slave_nway_reset, |
c4aef9fc | 1226 | .get_link = ethtool_op_get_link, |
6793abb4 GR |
1227 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
1228 | .get_eeprom = dsa_slave_get_eeprom, | |
1229 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
1230 | .get_strings = dsa_slave_get_strings, |
1231 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
1232 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
1233 | .set_wol = dsa_slave_set_wol, |
1234 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
1235 | .set_eee = dsa_slave_set_eee, |
1236 | .get_eee = dsa_slave_get_eee, | |
aab9c406 FF |
1237 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
1238 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
a2a1a13b HK |
1239 | .get_pauseparam = dsa_slave_get_pauseparam, |
1240 | .set_pauseparam = dsa_slave_set_pauseparam, | |
bf9f2648 FF |
1241 | .get_rxnfc = dsa_slave_get_rxnfc, |
1242 | .set_rxnfc = dsa_slave_set_rxnfc, | |
0336369d | 1243 | .get_ts_info = dsa_slave_get_ts_info, |
91da11f8 LB |
1244 | }; |
1245 | ||
2a93c1a3 FF |
1246 | /* legacy way, bypassing the bridge *****************************************/ |
1247 | int dsa_legacy_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], | |
1248 | struct net_device *dev, | |
1249 | const unsigned char *addr, u16 vid, | |
87b0984e PM |
1250 | u16 flags, |
1251 | struct netlink_ext_ack *extack) | |
2a93c1a3 FF |
1252 | { |
1253 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1254 | ||
1255 | return dsa_port_fdb_add(dp, addr, vid); | |
1256 | } | |
1257 | ||
1258 | int dsa_legacy_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], | |
1259 | struct net_device *dev, | |
1260 | const unsigned char *addr, u16 vid) | |
1261 | { | |
1262 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1263 | ||
1264 | return dsa_port_fdb_del(dp, addr, vid); | |
1265 | } | |
1266 | ||
716efee2 JP |
1267 | static struct devlink_port *dsa_slave_get_devlink_port(struct net_device *dev) |
1268 | { | |
1269 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1270 | ||
1271 | return dp->ds->devlink ? &dp->devlink_port : NULL; | |
1272 | } | |
1273 | ||
3e8a72d1 | 1274 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
1275 | .ndo_open = dsa_slave_open, |
1276 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 1277 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
1278 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
1279 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 1280 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
1281 | .ndo_fdb_add = dsa_legacy_fdb_add, |
1282 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 1283 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 1284 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 1285 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
1286 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1287 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
1288 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
1289 | .ndo_poll_controller = dsa_slave_poll_controller, | |
1290 | #endif | |
44bb765c | 1291 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 1292 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 1293 | .ndo_get_stats64 = dsa_slave_get_stats64, |
929d6c14 | 1294 | .ndo_get_port_parent_id = dsa_slave_get_port_parent_id, |
061f6a50 FF |
1295 | .ndo_vlan_rx_add_vid = dsa_slave_vlan_rx_add_vid, |
1296 | .ndo_vlan_rx_kill_vid = dsa_slave_vlan_rx_kill_vid, | |
716efee2 | 1297 | .ndo_get_devlink_port = dsa_slave_get_devlink_port, |
98237d43 SF |
1298 | }; |
1299 | ||
f37db85d FF |
1300 | static struct device_type dsa_type = { |
1301 | .name = "dsa", | |
1302 | }; | |
1303 | ||
aab9c406 FF |
1304 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up) |
1305 | { | |
1306 | const struct dsa_port *dp = dsa_to_port(ds, port); | |
1307 | ||
1308 | phylink_mac_change(dp->pl, up); | |
1309 | } | |
1310 | EXPORT_SYMBOL_GPL(dsa_port_phylink_mac_change); | |
1311 | ||
1312 | static void dsa_slave_phylink_fixed_state(struct net_device *dev, | |
1313 | struct phylink_link_state *state) | |
1314 | { | |
1315 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
1316 | struct dsa_switch *ds = dp->ds; | |
1317 | ||
1318 | /* No need to check that this operation is valid, the callback would | |
1319 | * not be called if it was not. | |
1320 | */ | |
1321 | ds->ops->phylink_fixed_state(ds, dp->index, state); | |
ce31b31c FF |
1322 | } |
1323 | ||
91da11f8 | 1324 | /* slave device setup *******************************************************/ |
4fa7b718 | 1325 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 1326 | { |
d945097b | 1327 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b | 1328 | struct dsa_switch *ds = dp->ds; |
c305c165 | 1329 | |
0115dcd1 VD |
1330 | slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); |
1331 | if (!slave_dev->phydev) { | |
d25b8e74 | 1332 | netdev_err(slave_dev, "no phy at %d\n", addr); |
c305c165 | 1333 | return -ENODEV; |
d25b8e74 | 1334 | } |
c305c165 | 1335 | |
aab9c406 | 1336 | return phylink_connect_phy(dp->pl, slave_dev->phydev); |
11d8f3dd | 1337 | } |
11d8f3dd | 1338 | |
4fa7b718 | 1339 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 1340 | { |
d945097b | 1341 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
d945097b VD |
1342 | struct device_node *port_dn = dp->dn; |
1343 | struct dsa_switch *ds = dp->ds; | |
0c65b2b9 | 1344 | phy_interface_t mode; |
6819563e | 1345 | u32 phy_flags = 0; |
0c65b2b9 | 1346 | int ret; |
0d8bcdd3 | 1347 | |
0c65b2b9 AL |
1348 | ret = of_get_phy_mode(port_dn, &mode); |
1349 | if (ret) | |
19334920 | 1350 | mode = PHY_INTERFACE_MODE_NA; |
0d8bcdd3 | 1351 | |
44cc27e4 IC |
1352 | dp->pl_config.dev = &slave_dev->dev; |
1353 | dp->pl_config.type = PHYLINK_NETDEV; | |
1354 | ||
1355 | dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(port_dn), mode, | |
77373d49 | 1356 | &dsa_port_phylink_mac_ops); |
aab9c406 FF |
1357 | if (IS_ERR(dp->pl)) { |
1358 | netdev_err(slave_dev, | |
1359 | "error creating PHYLINK: %ld\n", PTR_ERR(dp->pl)); | |
1360 | return PTR_ERR(dp->pl); | |
0d8bcdd3 FF |
1361 | } |
1362 | ||
aab9c406 FF |
1363 | /* Register only if the switch provides such a callback, since this |
1364 | * callback takes precedence over polling the link GPIO in PHYLINK | |
1365 | * (see phylink_get_fixed_state). | |
1366 | */ | |
1367 | if (ds->ops->phylink_fixed_state) | |
1368 | phylink_fixed_state_cb(dp->pl, dsa_slave_phylink_fixed_state); | |
1369 | ||
9d490b4e | 1370 | if (ds->ops->get_phy_flags) |
d945097b | 1371 | phy_flags = ds->ops->get_phy_flags(ds, dp->index); |
6819563e | 1372 | |
aab9c406 | 1373 | ret = phylink_of_phy_connect(dp->pl, port_dn, phy_flags); |
6146dd45 VO |
1374 | if (ret == -ENODEV && ds->slave_mii_bus) { |
1375 | /* We could not connect to a designated PHY or SFP, so try to | |
1376 | * use the switch internal MDIO bus instead | |
aab9c406 | 1377 | */ |
d945097b | 1378 | ret = dsa_slave_phy_connect(slave_dev, dp->index); |
d25b8e74 | 1379 | if (ret) { |
aab9c406 FF |
1380 | netdev_err(slave_dev, |
1381 | "failed to connect to port %d: %d\n", | |
d945097b | 1382 | dp->index, ret); |
aab9c406 | 1383 | phylink_destroy(dp->pl); |
c305c165 | 1384 | return ret; |
d25b8e74 | 1385 | } |
b31f65fb | 1386 | } |
9697f1cd | 1387 | |
6146dd45 | 1388 | return ret; |
0d8bcdd3 FF |
1389 | } |
1390 | ||
24462549 FF |
1391 | int dsa_slave_suspend(struct net_device *slave_dev) |
1392 | { | |
aab9c406 | 1393 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
24462549 | 1394 | |
a94c689e FF |
1395 | if (!netif_running(slave_dev)) |
1396 | return 0; | |
1397 | ||
f154be24 FF |
1398 | netif_device_detach(slave_dev); |
1399 | ||
aab9c406 FF |
1400 | rtnl_lock(); |
1401 | phylink_stop(dp->pl); | |
1402 | rtnl_unlock(); | |
24462549 FF |
1403 | |
1404 | return 0; | |
1405 | } | |
1406 | ||
1407 | int dsa_slave_resume(struct net_device *slave_dev) | |
1408 | { | |
aab9c406 FF |
1409 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
1410 | ||
a94c689e FF |
1411 | if (!netif_running(slave_dev)) |
1412 | return 0; | |
1413 | ||
24462549 FF |
1414 | netif_device_attach(slave_dev); |
1415 | ||
aab9c406 FF |
1416 | rtnl_lock(); |
1417 | phylink_start(dp->pl); | |
1418 | rtnl_unlock(); | |
24462549 FF |
1419 | |
1420 | return 0; | |
1421 | } | |
1422 | ||
6158eaa7 VD |
1423 | static void dsa_slave_notify(struct net_device *dev, unsigned long val) |
1424 | { | |
d0006b00 | 1425 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 1426 | struct dsa_port *dp = dsa_slave_to_port(dev); |
6158eaa7 VD |
1427 | struct dsa_notifier_register_info rinfo = { |
1428 | .switch_number = dp->ds->index, | |
1429 | .port_number = dp->index, | |
1430 | .master = master, | |
1431 | .info.dev = dev, | |
1432 | }; | |
1433 | ||
1434 | call_dsa_notifiers(val, dev, &rinfo.info); | |
1435 | } | |
1436 | ||
951259aa | 1437 | int dsa_slave_create(struct dsa_port *port) |
91da11f8 | 1438 | { |
24a9332a | 1439 | const struct dsa_port *cpu_dp = port->cpu_dp; |
f8b8b1cd | 1440 | struct net_device *master = cpu_dp->master; |
4cfbf09c | 1441 | struct dsa_switch *ds = port->ds; |
951259aa | 1442 | const char *name = port->name; |
91da11f8 LB |
1443 | struct net_device *slave_dev; |
1444 | struct dsa_slave_priv *p; | |
1445 | int ret; | |
1446 | ||
55199df6 FF |
1447 | if (!ds->num_tx_queues) |
1448 | ds->num_tx_queues = 1; | |
1449 | ||
1450 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1451 | NET_NAME_UNKNOWN, ether_setup, | |
1452 | ds->num_tx_queues, 1); | |
91da11f8 | 1453 | if (slave_dev == NULL) |
d87d6f44 | 1454 | return -ENOMEM; |
91da11f8 | 1455 | |
9b236d2a VO |
1456 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1457 | if (ds->ops->port_vlan_add && ds->ops->port_vlan_del) | |
1458 | slave_dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; | |
f50f2127 | 1459 | slave_dev->hw_features |= NETIF_F_HW_TC; |
7ad24ea4 | 1460 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
4974f9b7 | 1461 | if (!IS_ERR_OR_NULL(port->mac)) |
a2c7023f XS |
1462 | ether_addr_copy(slave_dev->dev_addr, port->mac); |
1463 | else | |
1464 | eth_hw_addr_inherit(slave_dev, master); | |
0a5f107b | 1465 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1466 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
8b1efc0f JW |
1467 | slave_dev->min_mtu = 0; |
1468 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1469 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1470 | |
4cfbf09c VD |
1471 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1472 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1473 | slave_dev->vlan_features = master->vlan_features; |
1474 | ||
1475 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1476 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1477 | if (!p->stats64) { | |
1478 | free_netdev(slave_dev); | |
1479 | return -ENOMEM; | |
1480 | } | |
4cfbf09c | 1481 | p->dp = port; |
f50f2127 | 1482 | INIT_LIST_HEAD(&p->mall_tc_list); |
15240248 | 1483 | p->xmit = cpu_dp->tag_ops->xmit; |
f8b8b1cd | 1484 | port->slave = slave_dev; |
91da11f8 LB |
1485 | |
1486 | netif_carrier_off(slave_dev); | |
1487 | ||
4fa7b718 | 1488 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1489 | if (ret) { |
1490 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
e804441c FF |
1491 | goto out_free; |
1492 | } | |
1493 | ||
6158eaa7 | 1494 | dsa_slave_notify(slave_dev, DSA_PORT_REGISTER); |
60724d4b | 1495 | |
e804441c FF |
1496 | ret = register_netdev(slave_dev); |
1497 | if (ret) { | |
1498 | netdev_err(master, "error %d registering interface %s\n", | |
1499 | ret, slave_dev->name); | |
1500 | goto out_phy; | |
0071f56e AL |
1501 | } |
1502 | ||
d87d6f44 | 1503 | return 0; |
e804441c FF |
1504 | |
1505 | out_phy: | |
aab9c406 FF |
1506 | rtnl_lock(); |
1507 | phylink_disconnect_phy(p->dp->pl); | |
1508 | rtnl_unlock(); | |
1509 | phylink_destroy(p->dp->pl); | |
e804441c FF |
1510 | out_free: |
1511 | free_percpu(p->stats64); | |
1512 | free_netdev(slave_dev); | |
f8b8b1cd | 1513 | port->slave = NULL; |
e804441c | 1514 | return ret; |
91da11f8 | 1515 | } |
b73adef6 | 1516 | |
cda5c15b NA |
1517 | void dsa_slave_destroy(struct net_device *slave_dev) |
1518 | { | |
d945097b | 1519 | struct dsa_port *dp = dsa_slave_to_port(slave_dev); |
cda5c15b NA |
1520 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
1521 | ||
1522 | netif_carrier_off(slave_dev); | |
aab9c406 FF |
1523 | rtnl_lock(); |
1524 | phylink_disconnect_phy(dp->pl); | |
1525 | rtnl_unlock(); | |
881eadab | 1526 | |
6158eaa7 | 1527 | dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER); |
cda5c15b | 1528 | unregister_netdev(slave_dev); |
aab9c406 | 1529 | phylink_destroy(dp->pl); |
5f6b4e14 | 1530 | free_percpu(p->stats64); |
cda5c15b NA |
1531 | free_netdev(slave_dev); |
1532 | } | |
1533 | ||
4d776482 | 1534 | bool dsa_slave_dev_check(const struct net_device *dev) |
b73adef6 FF |
1535 | { |
1536 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1537 | } | |
1538 | ||
8e92ab3a VD |
1539 | static int dsa_slave_changeupper(struct net_device *dev, |
1540 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1541 | { |
d945097b | 1542 | struct dsa_port *dp = dsa_slave_to_port(dev); |
8e92ab3a | 1543 | int err = NOTIFY_DONE; |
b73adef6 | 1544 | |
8e92ab3a VD |
1545 | if (netif_is_bridge_master(info->upper_dev)) { |
1546 | if (info->linking) { | |
17d7802b | 1547 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1548 | err = notifier_from_errno(err); |
1549 | } else { | |
17d7802b | 1550 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1551 | err = NOTIFY_OK; |
6debb68a | 1552 | } |
6debb68a | 1553 | } |
b73adef6 | 1554 | |
8e92ab3a | 1555 | return err; |
6debb68a | 1556 | } |
b73adef6 | 1557 | |
cc1d5bda FF |
1558 | static int dsa_slave_upper_vlan_check(struct net_device *dev, |
1559 | struct netdev_notifier_changeupper_info * | |
1560 | info) | |
1561 | { | |
1562 | struct netlink_ext_ack *ext_ack; | |
1563 | struct net_device *slave; | |
1564 | struct dsa_port *dp; | |
1565 | ||
1566 | ext_ack = netdev_notifier_info_to_extack(&info->info); | |
1567 | ||
1568 | if (!is_vlan_dev(dev)) | |
1569 | return NOTIFY_DONE; | |
1570 | ||
1571 | slave = vlan_dev_real_dev(dev); | |
1572 | if (!dsa_slave_dev_check(slave)) | |
1573 | return NOTIFY_DONE; | |
1574 | ||
1575 | dp = dsa_slave_to_port(slave); | |
1576 | if (!dp->bridge_dev) | |
1577 | return NOTIFY_DONE; | |
1578 | ||
1579 | /* Deny enslaving a VLAN device into a VLAN-aware bridge */ | |
1580 | if (br_vlan_enabled(dp->bridge_dev) && | |
1581 | netif_is_bridge_master(info->upper_dev) && info->linking) { | |
1582 | NL_SET_ERR_MSG_MOD(ext_ack, | |
1583 | "Cannot enslave VLAN device into VLAN aware bridge"); | |
1584 | return notifier_from_errno(-EINVAL); | |
1585 | } | |
1586 | ||
1587 | return NOTIFY_DONE; | |
1588 | } | |
1589 | ||
88e4f0ca VD |
1590 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1591 | unsigned long event, void *ptr) | |
6debb68a VD |
1592 | { |
1593 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1594 | ||
cc1d5bda FF |
1595 | if (event == NETDEV_CHANGEUPPER) { |
1596 | if (!dsa_slave_dev_check(dev)) | |
1597 | return dsa_slave_upper_vlan_check(dev, ptr); | |
8e92ab3a | 1598 | |
8e92ab3a | 1599 | return dsa_slave_changeupper(dev, ptr); |
cc1d5bda | 1600 | } |
b73adef6 | 1601 | |
b73adef6 FF |
1602 | return NOTIFY_DONE; |
1603 | } | |
88e4f0ca | 1604 | |
c9eb3e0f AS |
1605 | struct dsa_switchdev_event_work { |
1606 | struct work_struct work; | |
1607 | struct switchdev_notifier_fdb_info fdb_info; | |
1608 | struct net_device *dev; | |
1609 | unsigned long event; | |
1610 | }; | |
1611 | ||
1612 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1613 | { | |
1614 | struct dsa_switchdev_event_work *switchdev_work = | |
1615 | container_of(work, struct dsa_switchdev_event_work, work); | |
1616 | struct net_device *dev = switchdev_work->dev; | |
1617 | struct switchdev_notifier_fdb_info *fdb_info; | |
d945097b | 1618 | struct dsa_port *dp = dsa_slave_to_port(dev); |
c9eb3e0f AS |
1619 | int err; |
1620 | ||
1621 | rtnl_lock(); | |
1622 | switch (switchdev_work->event) { | |
1623 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1624 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1625 | if (!fdb_info->added_by_user) |
1626 | break; | |
1627 | ||
d945097b | 1628 | err = dsa_port_fdb_add(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1629 | if (err) { |
1630 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1631 | break; | |
1632 | } | |
e9ba0fbc | 1633 | fdb_info->offloaded = true; |
c9eb3e0f | 1634 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, |
6685987c | 1635 | &fdb_info->info, NULL); |
c9eb3e0f AS |
1636 | break; |
1637 | ||
1638 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1639 | fdb_info = &switchdev_work->fdb_info; | |
a37fb855 VD |
1640 | if (!fdb_info->added_by_user) |
1641 | break; | |
1642 | ||
d945097b | 1643 | err = dsa_port_fdb_del(dp, fdb_info->addr, fdb_info->vid); |
c9eb3e0f AS |
1644 | if (err) { |
1645 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1646 | dev_close(dev); | |
1647 | } | |
1648 | break; | |
1649 | } | |
1650 | rtnl_unlock(); | |
1651 | ||
1652 | kfree(switchdev_work->fdb_info.addr); | |
1653 | kfree(switchdev_work); | |
1654 | dev_put(dev); | |
1655 | } | |
1656 | ||
1657 | static int | |
1658 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1659 | switchdev_work, | |
1660 | const struct switchdev_notifier_fdb_info * | |
1661 | fdb_info) | |
1662 | { | |
1663 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1664 | sizeof(switchdev_work->fdb_info)); | |
1665 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1666 | if (!switchdev_work->fdb_info.addr) | |
1667 | return -ENOMEM; | |
1668 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1669 | fdb_info->addr); | |
1670 | return 0; | |
1671 | } | |
1672 | ||
1673 | /* Called under rcu_read_lock() */ | |
1674 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1675 | unsigned long event, void *ptr) | |
1676 | { | |
1677 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1678 | struct dsa_switchdev_event_work *switchdev_work; | |
79b139f4 VD |
1679 | int err; |
1680 | ||
1681 | if (event == SWITCHDEV_PORT_ATTR_SET) { | |
1682 | err = switchdev_handle_port_attr_set(dev, ptr, | |
1683 | dsa_slave_dev_check, | |
1684 | dsa_slave_port_attr_set); | |
1685 | return notifier_from_errno(err); | |
1686 | } | |
c9eb3e0f AS |
1687 | |
1688 | if (!dsa_slave_dev_check(dev)) | |
1689 | return NOTIFY_DONE; | |
1690 | ||
1691 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); | |
1692 | if (!switchdev_work) | |
1693 | return NOTIFY_BAD; | |
1694 | ||
1695 | INIT_WORK(&switchdev_work->work, | |
1696 | dsa_slave_switchdev_event_work); | |
1697 | switchdev_work->dev = dev; | |
1698 | switchdev_work->event = event; | |
1699 | ||
1700 | switch (event) { | |
1701 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1702 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
a37fb855 | 1703 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, ptr)) |
c9eb3e0f AS |
1704 | goto err_fdb_work_init; |
1705 | dev_hold(dev); | |
1706 | break; | |
1707 | default: | |
1708 | kfree(switchdev_work); | |
1709 | return NOTIFY_DONE; | |
1710 | } | |
1711 | ||
1712 | dsa_schedule_work(&switchdev_work->work); | |
1713 | return NOTIFY_OK; | |
1714 | ||
1715 | err_fdb_work_init: | |
1716 | kfree(switchdev_work); | |
1717 | return NOTIFY_BAD; | |
1718 | } | |
1719 | ||
2b239f67 PM |
1720 | static int dsa_slave_switchdev_blocking_event(struct notifier_block *unused, |
1721 | unsigned long event, void *ptr) | |
1722 | { | |
1723 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
79b139f4 | 1724 | int err; |
2b239f67 PM |
1725 | |
1726 | switch (event) { | |
79b139f4 VD |
1727 | case SWITCHDEV_PORT_OBJ_ADD: |
1728 | err = switchdev_handle_port_obj_add(dev, ptr, | |
1729 | dsa_slave_dev_check, | |
1730 | dsa_slave_port_obj_add); | |
1731 | return notifier_from_errno(err); | |
2b239f67 | 1732 | case SWITCHDEV_PORT_OBJ_DEL: |
79b139f4 VD |
1733 | err = switchdev_handle_port_obj_del(dev, ptr, |
1734 | dsa_slave_dev_check, | |
1735 | dsa_slave_port_obj_del); | |
1736 | return notifier_from_errno(err); | |
9ed1eced | 1737 | case SWITCHDEV_PORT_ATTR_SET: |
79b139f4 VD |
1738 | err = switchdev_handle_port_attr_set(dev, ptr, |
1739 | dsa_slave_dev_check, | |
1740 | dsa_slave_port_attr_set); | |
1741 | return notifier_from_errno(err); | |
2b239f67 PM |
1742 | } |
1743 | ||
1744 | return NOTIFY_DONE; | |
1745 | } | |
1746 | ||
88e4f0ca | 1747 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1748 | .notifier_call = dsa_slave_netdevice_event, |
1749 | }; | |
1750 | ||
1751 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1752 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1753 | }; |
1754 | ||
2b239f67 PM |
1755 | static struct notifier_block dsa_slave_switchdev_blocking_notifier = { |
1756 | .notifier_call = dsa_slave_switchdev_blocking_event, | |
1757 | }; | |
1758 | ||
88e4f0ca VD |
1759 | int dsa_slave_register_notifier(void) |
1760 | { | |
2b239f67 | 1761 | struct notifier_block *nb; |
c9eb3e0f AS |
1762 | int err; |
1763 | ||
1764 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1765 | if (err) | |
1766 | return err; | |
1767 | ||
1768 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1769 | if (err) | |
1770 | goto err_switchdev_nb; | |
1771 | ||
2b239f67 PM |
1772 | nb = &dsa_slave_switchdev_blocking_notifier; |
1773 | err = register_switchdev_blocking_notifier(nb); | |
1774 | if (err) | |
1775 | goto err_switchdev_blocking_nb; | |
1776 | ||
c9eb3e0f AS |
1777 | return 0; |
1778 | ||
2b239f67 PM |
1779 | err_switchdev_blocking_nb: |
1780 | unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
c9eb3e0f AS |
1781 | err_switchdev_nb: |
1782 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1783 | return err; | |
88e4f0ca VD |
1784 | } |
1785 | ||
1786 | void dsa_slave_unregister_notifier(void) | |
1787 | { | |
2b239f67 | 1788 | struct notifier_block *nb; |
88e4f0ca VD |
1789 | int err; |
1790 | ||
2b239f67 PM |
1791 | nb = &dsa_slave_switchdev_blocking_notifier; |
1792 | err = unregister_switchdev_blocking_notifier(nb); | |
1793 | if (err) | |
1794 | pr_err("DSA: failed to unregister switchdev blocking notifier (%d)\n", err); | |
1795 | ||
c9eb3e0f AS |
1796 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1797 | if (err) | |
1798 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1799 | ||
88e4f0ca VD |
1800 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1801 | if (err) | |
1802 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1803 | } |