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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 | ||
0115dcd1 | 91 | err = dsa_port_enable(dp, dev->phydev); |
fb8a6a2b VD |
92 | if (err) |
93 | goto clear_promisc; | |
b73adef6 | 94 | |
aab9c406 | 95 | phylink_start(dp->pl); |
f7f1de51 | 96 | |
91da11f8 | 97 | return 0; |
df02c6ff | 98 | |
b2f2af21 FF |
99 | clear_promisc: |
100 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 101 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
102 | clear_allmulti: |
103 | if (dev->flags & IFF_ALLMULTI) | |
104 | dev_set_allmulti(master, -1); | |
105 | del_unicast: | |
8feedbb4 | 106 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 107 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
108 | out: |
109 | return err; | |
91da11f8 LB |
110 | } |
111 | ||
112 | static int dsa_slave_close(struct net_device *dev) | |
113 | { | |
d0006b00 | 114 | struct net_device *master = dsa_slave_to_master(dev); |
d945097b | 115 | struct dsa_port *dp = dsa_slave_to_port(dev); |
df02c6ff | 116 | |
aab9c406 | 117 | phylink_stop(dp->pl); |
f7f1de51 | 118 | |
75104db0 | 119 | dsa_port_disable(dp); |
6457edfe | 120 | |
df02c6ff | 121 | dev_mc_unsync(master, dev); |
a748ee24 | 122 | dev_uc_unsync(master, dev); |
df02c6ff LB |
123 | if (dev->flags & IFF_ALLMULTI) |
124 | dev_set_allmulti(master, -1); | |
125 | if (dev->flags & IFF_PROMISC) | |
126 | dev_set_promiscuity(master, -1); | |
127 | ||
8feedbb4 | 128 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 129 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 130 | |
91da11f8 LB |
131 | return 0; |
132 | } | |
133 | ||
134 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
135 | { | |
d0006b00 | 136 | struct net_device *master = dsa_slave_to_master(dev); |
17ab4f61 RG |
137 | if (dev->flags & IFF_UP) { |
138 | if (change & IFF_ALLMULTI) | |
139 | dev_set_allmulti(master, | |
140 | dev->flags & IFF_ALLMULTI ? 1 : -1); | |
141 | if (change & IFF_PROMISC) | |
142 | dev_set_promiscuity(master, | |
143 | dev->flags & IFF_PROMISC ? 1 : -1); | |
144 | } | |
91da11f8 LB |
145 | } |
146 | ||
147 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
148 | { | |
d0006b00 | 149 | struct net_device *master = dsa_slave_to_master(dev); |
91da11f8 LB |
150 | |
151 | dev_mc_sync(master, dev); | |
a748ee24 | 152 | dev_uc_sync(master, dev); |
91da11f8 LB |
153 | } |
154 | ||
df02c6ff | 155 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 156 | { |
d0006b00 | 157 | struct net_device *master = dsa_slave_to_master(dev); |
df02c6ff LB |
158 | struct sockaddr *addr = a; |
159 | int err; | |
160 | ||
161 | if (!is_valid_ether_addr(addr->sa_data)) | |
162 | return -EADDRNOTAVAIL; | |
163 | ||
164 | if (!(dev->flags & IFF_UP)) | |
165 | goto out; | |
166 | ||
8feedbb4 | 167 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 168 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
169 | if (err < 0) |
170 | return err; | |
171 | } | |
172 | ||
8feedbb4 | 173 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 174 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
175 | |
176 | out: | |
d08f161a | 177 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
178 | |
179 | return 0; | |
180 | } | |
181 | ||
2bedde1a AS |
182 | struct dsa_slave_dump_ctx { |
183 | struct net_device *dev; | |
184 | struct sk_buff *skb; | |
185 | struct netlink_callback *cb; | |
186 | int idx; | |
187 | }; | |
188 | ||
189 | static int | |
190 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
191 | bool is_static, void *data) | |
192 | { | |
193 | struct dsa_slave_dump_ctx *dump = data; | |
194 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
195 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
196 | struct nlmsghdr *nlh; | |
197 | struct ndmsg *ndm; | |
198 | ||
199 | if (dump->idx < dump->cb->args[2]) | |
200 | goto skip; | |
201 | ||
202 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
203 | sizeof(*ndm), NLM_F_MULTI); | |
204 | if (!nlh) | |
205 | return -EMSGSIZE; | |
206 | ||
207 | ndm = nlmsg_data(nlh); | |
208 | ndm->ndm_family = AF_BRIDGE; | |
209 | ndm->ndm_pad1 = 0; | |
210 | ndm->ndm_pad2 = 0; | |
211 | ndm->ndm_flags = NTF_SELF; | |
212 | ndm->ndm_type = 0; | |
213 | ndm->ndm_ifindex = dump->dev->ifindex; | |
214 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
215 | ||
216 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
217 | goto nla_put_failure; | |
218 | ||
219 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
220 | goto nla_put_failure; | |
221 | ||
222 | nlmsg_end(dump->skb, nlh); | |
223 | ||
224 | skip: | |
225 | dump->idx++; | |
226 | return 0; | |
227 | ||
228 | nla_put_failure: | |
229 | nlmsg_cancel(dump->skb, nlh); | |
230 | return -EMSGSIZE; | |
231 | } | |
232 | ||
233 | static int | |
234 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
235 | struct net_device *dev, struct net_device *filter_dev, | |
236 | int *idx) | |
237 | { | |
d945097b | 238 | struct dsa_port *dp = dsa_slave_to_port(dev); |
2bedde1a AS |
239 | struct dsa_slave_dump_ctx dump = { |
240 | .dev = dev, | |
241 | .skb = skb, | |
242 | .cb = cb, | |
243 | .idx = *idx, | |
244 | }; | |
2bedde1a AS |
245 | int err; |
246 | ||
de40fc5d | 247 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 248 | *idx = dump.idx; |
de40fc5d | 249 | |
2bedde1a AS |
250 | return err; |
251 | } | |
252 | ||
91da11f8 LB |
253 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
254 | { | |
0336369d BS |
255 | struct dsa_slave_priv *p = netdev_priv(dev); |
256 | struct dsa_switch *ds = p->dp->ds; | |
257 | int port = p->dp->index; | |
258 | ||
259 | /* Pass through to switch driver if it supports timestamping */ | |
260 | switch (cmd) { | |
261 | case SIOCGHWTSTAMP: | |
262 | if (ds->ops->port_hwtstamp_get) | |
263 | return ds->ops->port_hwtstamp_get(ds, port, ifr); | |
264 | break; | |
265 | case SIOCSHWTSTAMP: | |
266 | if (ds->ops->port_hwtstamp_set) | |
267 | return ds->ops->port_hwtstamp_set(ds, port, ifr); | |
268 | break; | |
269 | } | |
270 | ||
aab9c406 | 271 | return phylink_mii_ioctl(p->dp->pl, ifr, cmd); |
91da11f8 LB |
272 | } |
273 | ||
35636062 | 274 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 275 | const struct switchdev_attr *attr, |
7ea6eb3f | 276 | struct switchdev_trans *trans) |
35636062 | 277 | { |
d945097b | 278 | struct dsa_port *dp = dsa_slave_to_port(dev); |
b8d866ac | 279 | int ret; |
35636062 SF |
280 | |
281 | switch (attr->id) { | |
1f868398 | 282 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 283 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 284 | break; |
fb2dabad | 285 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
286 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
287 | trans); | |
fb2dabad | 288 | break; |
34a79f63 | 289 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 290 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 291 | break; |
ea87005a FF |
292 | case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: |
293 | ret = dsa_port_pre_bridge_flags(dp, attr->u.brport_flags, | |
294 | trans); | |
295 | break; | |
57652796 RK |
296 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
297 | ret = dsa_port_bridge_flags(dp, attr->u.brport_flags, trans); | |
298 | break; | |
08cc83cc VD |
299 | case SWITCHDEV_ATTR_ID_BRIDGE_MROUTER: |
300 | ret = dsa_port_mrouter(dp->cpu_dp, attr->u.mrouter, trans); | |
301 | break; | |
35636062 SF |
302 | default: |
303 | ret = -EOPNOTSUPP; | |
304 | break; | |
305 | } | |
306 | ||
307 | return ret; | |
308 | } | |
309 | ||
bdcff080 VD |
310 | static int dsa_slave_vlan_add(struct net_device *dev, |
311 | const struct switchdev_obj *obj, | |
312 | struct switchdev_trans *trans) | |
313 | { | |
314 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
315 | struct switchdev_obj_port_vlan vlan; | |
316 | int err; | |
317 | ||
318 | if (obj->orig_dev != dev) | |
319 | return -EOPNOTSUPP; | |
320 | ||
c5335d73 VD |
321 | if (dp->bridge_dev && !br_vlan_enabled(dp->bridge_dev)) |
322 | return 0; | |
323 | ||
bdcff080 VD |
324 | vlan = *SWITCHDEV_OBJ_PORT_VLAN(obj); |
325 | ||
326 | err = dsa_port_vlan_add(dp, &vlan, trans); | |
327 | if (err) | |
328 | return err; | |
329 | ||
b9499904 VD |
330 | /* We need the dedicated CPU port to be a member of the VLAN as well. |
331 | * Even though drivers often handle CPU membership in special ways, | |
332 | * it doesn't make sense to program a PVID, so clear this flag. | |
333 | */ | |
334 | vlan.flags &= ~BRIDGE_VLAN_INFO_PVID; | |
335 | ||
7e1741b4 VD |
336 | err = dsa_port_vlan_add(dp->cpu_dp, &vlan, trans); |
337 | if (err) | |
338 | return err; | |
339 | ||
bdcff080 VD |
340 | return 0; |
341 | } | |
342 | ||
ba14d9eb | 343 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 344 | const struct switchdev_obj *obj, |
79b139f4 VD |
345 | struct switchdev_trans *trans, |
346 | struct netlink_ext_ack *extack) | |
ba14d9eb | 347 | { |
d945097b | 348 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
349 | int err; |
350 | ||
351 | /* For the prepare phase, ensure the full set of changes is feasable in | |
352 | * one go in order to signal a failure properly. If an operation is not | |
353 | * supported, return -EOPNOTSUPP. | |
354 | */ | |
355 | ||
9e8f4a54 | 356 | switch (obj->id) { |
8df30255 | 357 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
79b139f4 VD |
358 | if (obj->orig_dev != dev) |
359 | return -EOPNOTSUPP; | |
bcebb976 | 360 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 361 | break; |
5f4dbc50 AL |
362 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
363 | /* DSA can directly translate this to a normal MDB add, | |
364 | * but on the CPU port. | |
365 | */ | |
366 | err = dsa_port_mdb_add(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj), | |
367 | trans); | |
368 | break; | |
57d80838 | 369 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
bdcff080 | 370 | err = dsa_slave_vlan_add(dev, obj, trans); |
11149536 | 371 | break; |
ba14d9eb VD |
372 | default: |
373 | err = -EOPNOTSUPP; | |
374 | break; | |
375 | } | |
376 | ||
377 | return err; | |
378 | } | |
379 | ||
bdcff080 VD |
380 | static int dsa_slave_vlan_del(struct net_device *dev, |
381 | const struct switchdev_obj *obj) | |
382 | { | |
383 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
384 | ||
385 | if (obj->orig_dev != dev) | |
386 | return -EOPNOTSUPP; | |
387 | ||
c5335d73 VD |
388 | if (dp->bridge_dev && !br_vlan_enabled(dp->bridge_dev)) |
389 | return 0; | |
390 | ||
7e1741b4 VD |
391 | /* Do not deprogram the CPU port as it may be shared with other user |
392 | * ports which can be members of this VLAN as well. | |
393 | */ | |
bdcff080 VD |
394 | return dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
395 | } | |
396 | ||
ba14d9eb | 397 | static int dsa_slave_port_obj_del(struct net_device *dev, |
648b4a99 | 398 | const struct switchdev_obj *obj) |
ba14d9eb | 399 | { |
d945097b | 400 | struct dsa_port *dp = dsa_slave_to_port(dev); |
ba14d9eb VD |
401 | int err; |
402 | ||
9e8f4a54 | 403 | switch (obj->id) { |
8df30255 | 404 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
79b139f4 VD |
405 | if (obj->orig_dev != dev) |
406 | return -EOPNOTSUPP; | |
bcebb976 | 407 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 408 | break; |
5f4dbc50 AL |
409 | case SWITCHDEV_OBJ_ID_HOST_MDB: |
410 | /* DSA can directly translate this to a normal MDB add, | |
411 | * but on the CPU port. | |
412 | */ | |
413 | err = dsa_port_mdb_del(dp->cpu_dp, SWITCHDEV_OBJ_PORT_MDB(obj)); | |
414 | break; | |
57d80838 | 415 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
bdcff080 | 416 | err = dsa_slave_vlan_del(dev, obj); |
11149536 | 417 | break; |
ba14d9eb VD |
418 | default: |
419 | err = -EOPNOTSUPP; | |
420 | break; | |
421 | } | |
422 | ||
423 | return err; | |
424 | } | |
425 | ||
929d6c14 FF |
426 | static int dsa_slave_get_port_parent_id(struct net_device *dev, |
427 | struct netdev_phys_item_id *ppid) | |
b73adef6 | 428 | { |
d945097b VD |
429 | struct dsa_port *dp = dsa_slave_to_port(dev); |
430 | struct dsa_switch *ds = dp->ds; | |
a42c8e33 | 431 | struct dsa_switch_tree *dst = ds->dst; |
b73adef6 | 432 | |
15b04ace JP |
433 | /* For non-legacy ports, devlink is used and it takes |
434 | * care of the name generation. This ndo implementation | |
435 | * should be removed with legacy support. | |
436 | */ | |
437 | if (dp->ds->devlink) | |
438 | return -EOPNOTSUPP; | |
439 | ||
929d6c14 FF |
440 | ppid->id_len = sizeof(dst->index); |
441 | memcpy(&ppid->id, &dst->index, ppid->id_len); | |
442 | ||
443 | return 0; | |
444 | } | |
445 | ||
4fa7b718 VD |
446 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
447 | struct sk_buff *skb) | |
04ff53f9 FF |
448 | { |
449 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
450 | struct dsa_slave_priv *p = netdev_priv(dev); |
451 | ||
04ff53f9 FF |
452 | if (p->netpoll) |
453 | netpoll_send_skb(p->netpoll, skb); | |
454 | #else | |
455 | BUG(); | |
456 | #endif | |
457 | return NETDEV_TX_OK; | |
458 | } | |
459 | ||
90af1059 BS |
460 | static void dsa_skb_tx_timestamp(struct dsa_slave_priv *p, |
461 | struct sk_buff *skb) | |
462 | { | |
463 | struct dsa_switch *ds = p->dp->ds; | |
464 | struct sk_buff *clone; | |
465 | unsigned int type; | |
466 | ||
467 | type = ptp_classify_raw(skb); | |
468 | if (type == PTP_CLASS_NONE) | |
469 | return; | |
470 | ||
471 | if (!ds->ops->port_txtstamp) | |
472 | return; | |
473 | ||
474 | clone = skb_clone_sk(skb); | |
475 | if (!clone) | |
476 | return; | |
477 | ||
146d442c VO |
478 | DSA_SKB_CB(skb)->clone = clone; |
479 | ||
90af1059 BS |
480 | if (ds->ops->port_txtstamp(ds, p->dp->index, clone, type)) |
481 | return; | |
482 | ||
483 | kfree_skb(clone); | |
484 | } | |
485 | ||
97a69a0d VO |
486 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev) |
487 | { | |
488 | /* SKB for netpoll still need to be mangled with the protocol-specific | |
489 | * tag to be successfully transmitted | |
490 | */ | |
491 | if (unlikely(netpoll_tx_running(dev))) | |
492 | return dsa_slave_netpoll_send_skb(dev, skb); | |
493 | ||
494 | /* Queue the SKB for transmission on the parent interface, but | |
495 | * do not modify its EtherType | |
496 | */ | |
497 | skb->dev = dsa_slave_to_master(dev); | |
498 | dev_queue_xmit(skb); | |
499 | ||
500 | return NETDEV_TX_OK; | |
501 | } | |
502 | EXPORT_SYMBOL_GPL(dsa_enqueue_skb); | |
503 | ||
3e8a72d1 FF |
504 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
505 | { | |
506 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 507 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 508 | struct sk_buff *nskb; |
3e8a72d1 | 509 | |
5f6b4e14 FF |
510 | s = this_cpu_ptr(p->stats64); |
511 | u64_stats_update_begin(&s->syncp); | |
512 | s->tx_packets++; | |
513 | s->tx_bytes += skb->len; | |
514 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 515 | |
146d442c | 516 | DSA_SKB_CB(skb)->clone = NULL; |
87671375 | 517 | |
90af1059 BS |
518 | /* Identify PTP protocol packets, clone them, and pass them to the |
519 | * switch driver | |
520 | */ | |
521 | dsa_skb_tx_timestamp(p, skb); | |
522 | ||
fe47d563 VD |
523 | /* Transmit function may have to reallocate the original SKB, |
524 | * in which case it must have freed it. Only free it here on error. | |
525 | */ | |
4ed70ce9 | 526 | nskb = p->xmit(skb, dev); |
fe47d563 | 527 | if (!nskb) { |
a68578c2 | 528 | kfree_skb(skb); |
4ed70ce9 | 529 | return NETDEV_TX_OK; |
fe47d563 | 530 | } |
5aed85ce | 531 | |
97a69a0d VO |
532 | return dsa_enqueue_skb(nskb, dev); |
533 | } | |
04ff53f9 | 534 | |
91da11f8 | 535 | /* ethtool operations *******************************************************/ |
91da11f8 | 536 | |
91da11f8 LB |
537 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
538 | struct ethtool_drvinfo *drvinfo) | |
539 | { | |
7826d43f | 540 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
541 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
542 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
543 | } |
544 | ||
3d762a0f GR |
545 | static int dsa_slave_get_regs_len(struct net_device *dev) |
546 | { | |
d945097b VD |
547 | struct dsa_port *dp = dsa_slave_to_port(dev); |
548 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 549 | |
9d490b4e | 550 | if (ds->ops->get_regs_len) |
d945097b | 551 | return ds->ops->get_regs_len(ds, dp->index); |
3d762a0f GR |
552 | |
553 | return -EOPNOTSUPP; | |
554 | } | |
555 | ||
556 | static void | |
557 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
558 | { | |
d945097b VD |
559 | struct dsa_port *dp = dsa_slave_to_port(dev); |
560 | struct dsa_switch *ds = dp->ds; | |
3d762a0f | 561 | |
9d490b4e | 562 | if (ds->ops->get_regs) |
d945097b | 563 | ds->ops->get_regs(ds, dp->index, regs, _p); |
3d762a0f GR |
564 | } |
565 | ||
aab9c406 FF |
566 | static int dsa_slave_nway_reset(struct net_device *dev) |
567 | { | |
568 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
569 | ||
570 | return phylink_ethtool_nway_reset(dp->pl); | |
571 | } | |
572 | ||
6793abb4 GR |
573 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
574 | { | |
d945097b VD |
575 | struct dsa_port *dp = dsa_slave_to_port(dev); |
576 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 577 | |
0e576044 | 578 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 579 | return ds->cd->eeprom_len; |
6793abb4 | 580 | |
9d490b4e VD |
581 | if (ds->ops->get_eeprom_len) |
582 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
583 | |
584 | return 0; | |
585 | } | |
586 | ||
587 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
588 | struct ethtool_eeprom *eeprom, u8 *data) | |
589 | { | |
d945097b VD |
590 | struct dsa_port *dp = dsa_slave_to_port(dev); |
591 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 592 | |
9d490b4e VD |
593 | if (ds->ops->get_eeprom) |
594 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
595 | |
596 | return -EOPNOTSUPP; | |
597 | } | |
598 | ||
599 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
600 | struct ethtool_eeprom *eeprom, u8 *data) | |
601 | { | |
d945097b VD |
602 | struct dsa_port *dp = dsa_slave_to_port(dev); |
603 | struct dsa_switch *ds = dp->ds; | |
6793abb4 | 604 | |
9d490b4e VD |
605 | if (ds->ops->set_eeprom) |
606 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
607 | |
608 | return -EOPNOTSUPP; | |
609 | } | |
610 | ||
91da11f8 LB |
611 | static void dsa_slave_get_strings(struct net_device *dev, |
612 | uint32_t stringset, uint8_t *data) | |
613 | { | |
d945097b VD |
614 | struct dsa_port *dp = dsa_slave_to_port(dev); |
615 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
616 | |
617 | if (stringset == ETH_SS_STATS) { | |
618 | int len = ETH_GSTRING_LEN; | |
619 | ||
620 | strncpy(data, "tx_packets", len); | |
621 | strncpy(data + len, "tx_bytes", len); | |
622 | strncpy(data + 2 * len, "rx_packets", len); | |
623 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 624 | if (ds->ops->get_strings) |
89f09048 FF |
625 | ds->ops->get_strings(ds, dp->index, stringset, |
626 | data + 4 * len); | |
91da11f8 LB |
627 | } |
628 | } | |
629 | ||
630 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
631 | struct ethtool_stats *stats, | |
632 | uint64_t *data) | |
633 | { | |
d945097b | 634 | struct dsa_port *dp = dsa_slave_to_port(dev); |
91da11f8 | 635 | struct dsa_slave_priv *p = netdev_priv(dev); |
d945097b | 636 | struct dsa_switch *ds = dp->ds; |
5f6b4e14 | 637 | struct pcpu_sw_netstats *s; |
f613ed66 | 638 | unsigned int start; |
5f6b4e14 FF |
639 | int i; |
640 | ||
641 | for_each_possible_cpu(i) { | |
642 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
643 | ||
644 | s = per_cpu_ptr(p->stats64, i); | |
645 | do { | |
646 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
647 | tx_packets = s->tx_packets; | |
648 | tx_bytes = s->tx_bytes; | |
649 | rx_packets = s->rx_packets; | |
650 | rx_bytes = s->rx_bytes; | |
651 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
652 | data[0] += tx_packets; | |
653 | data[1] += tx_bytes; | |
654 | data[2] += rx_packets; | |
655 | data[3] += rx_bytes; | |
656 | } | |
9d490b4e | 657 | if (ds->ops->get_ethtool_stats) |
d945097b | 658 | ds->ops->get_ethtool_stats(ds, dp->index, data + 4); |
91da11f8 LB |
659 | } |
660 | ||
661 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
662 | { | |
d945097b VD |
663 | struct dsa_port *dp = dsa_slave_to_port(dev); |
664 | struct dsa_switch *ds = dp->ds; | |
91da11f8 LB |
665 | |
666 | if (sset == ETH_SS_STATS) { | |
667 | int count; | |
668 | ||
669 | count = 4; | |
9d490b4e | 670 | if (ds->ops->get_sset_count) |
89f09048 | 671 | count += ds->ops->get_sset_count(ds, dp->index, sset); |
91da11f8 LB |
672 | |
673 | return count; | |
674 | } | |
675 | ||
676 | return -EOPNOTSUPP; | |
677 | } | |
678 | ||
19e57c4e FF |
679 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
680 | { | |
d945097b VD |
681 | struct dsa_port *dp = dsa_slave_to_port(dev); |
682 | struct dsa_switch *ds = dp->ds; | |
19e57c4e | 683 | |
aab9c406 FF |
684 | phylink_ethtool_get_wol(dp->pl, w); |
685 | ||
9d490b4e | 686 | if (ds->ops->get_wol) |
d945097b | 687 | ds->ops->get_wol(ds, dp->index, w); |
19e57c4e FF |
688 | } |
689 | ||
690 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
691 | { | |
d945097b VD |
692 | struct dsa_port *dp = dsa_slave_to_port(dev); |
693 | struct dsa_switch *ds = dp->ds; | |
19e57c4e FF |
694 | int ret = -EOPNOTSUPP; |
695 | ||
aab9c406 FF |
696 | phylink_ethtool_set_wol(dp->pl, w); |
697 | ||
9d490b4e | 698 | if (ds->ops->set_wol) |
d945097b | 699 | ret = ds->ops->set_wol(ds, dp->index, w); |
19e57c4e FF |
700 | |
701 | return ret; | |
702 | } | |
703 | ||
7905288f FF |
704 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
705 | { | |
d945097b VD |
706 | struct dsa_port *dp = dsa_slave_to_port(dev); |
707 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
708 | int ret; |
709 | ||
7b9cc738 | 710 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 711 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
712 | return -ENODEV; |
713 | ||
08f50061 | 714 | if (!ds->ops->set_mac_eee) |
7905288f FF |
715 | return -EOPNOTSUPP; |
716 | ||
d945097b | 717 | ret = ds->ops->set_mac_eee(ds, dp->index, e); |
7905288f FF |
718 | if (ret) |
719 | return ret; | |
720 | ||
aab9c406 | 721 | return phylink_ethtool_set_eee(dp->pl, e); |
7905288f FF |
722 | } |
723 | ||
724 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
725 | { | |
d945097b VD |
726 | struct dsa_port *dp = dsa_slave_to_port(dev); |
727 | struct dsa_switch *ds = dp->ds; | |
7905288f FF |
728 | int ret; |
729 | ||
7b9cc738 | 730 | /* Port's PHY and MAC both need to be EEE capable */ |
00670cb8 | 731 | if (!dev->phydev || !dp->pl) |
7b9cc738 VD |
732 | return -ENODEV; |
733 | ||
08f50061 | 734 | if (!ds->ops->get_mac_eee) |
7905288f FF |
735 | return -EOPNOTSUPP; |
736 | ||
d945097b | 737 | ret = ds->ops->get_mac_eee(ds, dp->index, e); |
7905288f FF |
738 | if (ret) |
739 | return ret; | |
740 | ||
aab9c406 FF |
741 | return phylink_ethtool_get_eee(dp->pl, e); |
742 | } | |
743 | ||
744 | static int dsa_slave_get_link_ksettings(struct net_device *dev, | |
745 | struct ethtool_link_ksettings *cmd) | |
746 | { | |
747 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
748 | ||
749 | return phylink_ethtool_ksettings_get(dp->pl, cmd); | |
750 | } | |
751 | ||
752 | static int dsa_slave_set_link_ksettings(struct net_device *dev, | |
753 | const struct ethtool_link_ksettings *cmd) | |
754 | { | |
755 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
756 | ||
757 | return phylink_ethtool_ksettings_set(dp->pl, cmd); | |
7905288f FF |
758 | } |
759 | ||
a2a1a13b HK |
760 | static void dsa_slave_get_pauseparam(struct net_device *dev, |
761 | struct ethtool_pauseparam *pause) | |
762 | { | |
763 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
764 | ||
765 | phylink_ethtool_get_pauseparam(dp->pl, pause); | |
766 | } | |
767 | ||
768 | static int dsa_slave_set_pauseparam(struct net_device *dev, | |
769 | struct ethtool_pauseparam *pause) | |
770 | { | |
771 | struct dsa_port *dp = dsa_slave_to_port(dev); | |
772 | ||
773 | return phylink_ethtool_set_pauseparam(dp->pl, pause); | |
774 | } | |
775 | ||
04ff53f9 FF |
776 | #ifdef CONFIG_NET_POLL_CONTROLLER |
777 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
778 | struct netpoll_info *ni) | |
779 | { | |
d0006b00 | 780 | struct net_device *master = dsa_slave_to_master(dev); |
04ff53f9 | 781 | struct dsa_slave_priv *p = netdev_priv(dev); |
04ff53f9 FF |
782 | struct netpoll *netpoll; |
783 | int err = 0; | |
784 | ||
785 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
786 | if (!netpoll) | |
787 | return -ENOMEM; | |
788 | ||
789 | err = __netpoll_setup(netpoll, master); | |
790 | if (err) { | |
791 | kfree(netpoll); | |
792 | goto out; | |
793 | } | |
794 | ||
795 | p->netpoll = netpoll; | |
796 | out: | |
797 | return err; | |
798 | } | |
799 | ||
800 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
801 | { | |
802 | struct dsa_slave_priv *p = netdev_priv(dev); | |
803 | struct netpoll *netpoll = p->netpoll; | |
804 | ||
805 | if (!netpoll) | |
806 | return; | |
807 | ||
808 | p->netpoll = NULL; | |
809 | ||
c9fbd71f | 810 | __netpoll_free(netpoll); |
04ff53f9 FF |
811 | } |
812 | ||
813 | static void dsa_slave_poll_controller(struct net_device *dev) | |
814 | { | |
815 | } | |
816 | #endif | |
817 | ||
44bb765c FF |
818 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
819 | char *name, size_t len) | |
820 | { | |
d945097b | 821 | struct dsa_port *dp = dsa_slave_to_port(dev); |
44bb765c | 822 | |
d484210b JP |
823 | /* For non-legacy ports, devlink is used and it takes |
824 | * care of the name generation. This ndo implementation | |
825 | * should be removed with legacy support. | |
826 | */ | |
827 | if (dp->ds->devlink) | |
828 | return -EOPNOTSUPP; | |
829 | ||
d945097b | 830 | if (snprintf(name, len, "p%d", dp->index) >= len) |
44bb765c | 831 | return -EINVAL; |
3a543ef4 FF |
832 | |
833 | return 0; | |
834 | } | |
835 | ||
f50f2127 | 836 | static struct dsa_mall_tc_entry * |
4fa7b718 | 837 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 838 | { |
4fa7b718 | 839 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
840 | struct dsa_mall_tc_entry *mall_tc_entry; |
841 | ||
842 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
843 | if (mall_tc_entry->cookie == cookie) | |
844 | return mall_tc_entry; | |
845 | ||
846 | return NULL; | |
847 | } | |
848 | ||
849 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
850 | struct tc_cls_matchall_offload *cls, |
851 | bool ingress) | |
852 | { | |
d945097b | 853 | struct dsa_port *dp = dsa_slave_to_port(dev); |
f50f2127 FF |
854 | struct dsa_slave_priv *p = netdev_priv(dev); |
855 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 856 | __be16 protocol = cls->common.protocol; |
d945097b | 857 | struct dsa_switch *ds = dp->ds; |
9681e8b3 | 858 | struct flow_action_entry *act; |
d945097b | 859 | struct dsa_port *to_dp; |
f50f2127 | 860 | int err = -EOPNOTSUPP; |
f50f2127 FF |
861 | |
862 | if (!ds->ops->port_mirror_add) | |
863 | return err; | |
864 | ||
9681e8b3 | 865 | if (!flow_offload_has_one_action(&cls->rule->action)) |
f50f2127 FF |
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 | } |