Commit | Line | Data |
---|---|---|
91da11f8 LB |
1 | /* |
2 | * net/dsa/slave.c - Slave device handling | |
e84665c9 | 3 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/list.h> | |
df02c6ff | 12 | #include <linux/etherdevice.h> |
b73adef6 | 13 | #include <linux/netdevice.h> |
91da11f8 | 14 | #include <linux/phy.h> |
a2820543 | 15 | #include <linux/phy_fixed.h> |
0d8bcdd3 FF |
16 | #include <linux/of_net.h> |
17 | #include <linux/of_mdio.h> | |
7f854420 | 18 | #include <linux/mdio.h> |
f50f2127 | 19 | #include <linux/list.h> |
b73adef6 | 20 | #include <net/rtnetlink.h> |
f50f2127 FF |
21 | #include <net/pkt_cls.h> |
22 | #include <net/tc_act/tc_mirred.h> | |
b73adef6 | 23 | #include <linux/if_bridge.h> |
04ff53f9 | 24 | #include <linux/netpoll.h> |
ea5dd34b | 25 | |
91da11f8 LB |
26 | #include "dsa_priv.h" |
27 | ||
f50f2127 FF |
28 | static bool dsa_slave_dev_check(struct net_device *dev); |
29 | ||
91da11f8 LB |
30 | /* slave mii_bus handling ***************************************************/ |
31 | static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg) | |
32 | { | |
33 | struct dsa_switch *ds = bus->priv; | |
34 | ||
0d8bcdd3 | 35 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 36 | return ds->ops->phy_read(ds, addr, reg); |
91da11f8 LB |
37 | |
38 | return 0xffff; | |
39 | } | |
40 | ||
41 | static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val) | |
42 | { | |
43 | struct dsa_switch *ds = bus->priv; | |
44 | ||
0d8bcdd3 | 45 | if (ds->phys_mii_mask & (1 << addr)) |
9d490b4e | 46 | return ds->ops->phy_write(ds, addr, reg, val); |
91da11f8 LB |
47 | |
48 | return 0; | |
49 | } | |
50 | ||
51 | void dsa_slave_mii_bus_init(struct dsa_switch *ds) | |
52 | { | |
53 | ds->slave_mii_bus->priv = (void *)ds; | |
54 | ds->slave_mii_bus->name = "dsa slave smi"; | |
55 | ds->slave_mii_bus->read = dsa_slave_phy_read; | |
56 | ds->slave_mii_bus->write = dsa_slave_phy_write; | |
0b7b498d FF |
57 | snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d.%d", |
58 | ds->dst->tree, ds->index); | |
c33063d6 | 59 | ds->slave_mii_bus->parent = ds->dev; |
24df8986 | 60 | ds->slave_mii_bus->phy_mask = ~ds->phys_mii_mask; |
91da11f8 LB |
61 | } |
62 | ||
63 | ||
64 | /* slave device handling ****************************************************/ | |
abd2be00 | 65 | static int dsa_slave_get_iflink(const struct net_device *dev) |
c0840801 LB |
66 | { |
67 | struct dsa_slave_priv *p = netdev_priv(dev); | |
c0840801 | 68 | |
6d3c8c0d | 69 | return dsa_master_netdev(p)->ifindex; |
c0840801 LB |
70 | } |
71 | ||
91da11f8 LB |
72 | static int dsa_slave_open(struct net_device *dev) |
73 | { | |
df02c6ff | 74 | struct dsa_slave_priv *p = netdev_priv(dev); |
f3d736c4 VD |
75 | struct dsa_port *dp = p->dp; |
76 | struct dsa_switch *ds = dp->ds; | |
6d3c8c0d | 77 | struct net_device *master = dsa_master_netdev(p); |
f3d736c4 | 78 | u8 stp_state = dp->bridge_dev ? BR_STATE_BLOCKING : BR_STATE_FORWARDING; |
df02c6ff LB |
79 | int err; |
80 | ||
81 | if (!(master->flags & IFF_UP)) | |
82 | return -ENETDOWN; | |
83 | ||
8feedbb4 | 84 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 85 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
86 | if (err < 0) |
87 | goto out; | |
88 | } | |
89 | ||
90 | if (dev->flags & IFF_ALLMULTI) { | |
91 | err = dev_set_allmulti(master, 1); | |
92 | if (err < 0) | |
93 | goto del_unicast; | |
94 | } | |
95 | if (dev->flags & IFF_PROMISC) { | |
96 | err = dev_set_promiscuity(master, 1); | |
97 | if (err < 0) | |
98 | goto clear_allmulti; | |
99 | } | |
100 | ||
9d490b4e | 101 | if (ds->ops->port_enable) { |
afdcf151 | 102 | err = ds->ops->port_enable(ds, p->dp->index, p->phy); |
b2f2af21 FF |
103 | if (err) |
104 | goto clear_promisc; | |
105 | } | |
106 | ||
fd364541 | 107 | dsa_port_set_state_now(p->dp, stp_state); |
b73adef6 | 108 | |
f7f1de51 FF |
109 | if (p->phy) |
110 | phy_start(p->phy); | |
111 | ||
91da11f8 | 112 | return 0; |
df02c6ff | 113 | |
b2f2af21 FF |
114 | clear_promisc: |
115 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 116 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
117 | clear_allmulti: |
118 | if (dev->flags & IFF_ALLMULTI) | |
119 | dev_set_allmulti(master, -1); | |
120 | del_unicast: | |
8feedbb4 | 121 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 122 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
123 | out: |
124 | return err; | |
91da11f8 LB |
125 | } |
126 | ||
127 | static int dsa_slave_close(struct net_device *dev) | |
128 | { | |
df02c6ff | 129 | struct dsa_slave_priv *p = netdev_priv(dev); |
6d3c8c0d | 130 | struct net_device *master = dsa_master_netdev(p); |
afdcf151 | 131 | struct dsa_switch *ds = p->dp->ds; |
df02c6ff | 132 | |
f7f1de51 FF |
133 | if (p->phy) |
134 | phy_stop(p->phy); | |
135 | ||
6457edfe VD |
136 | dsa_port_set_state_now(p->dp, BR_STATE_DISABLED); |
137 | ||
138 | if (ds->ops->port_disable) | |
139 | ds->ops->port_disable(ds, p->dp->index, p->phy); | |
140 | ||
df02c6ff | 141 | dev_mc_unsync(master, dev); |
a748ee24 | 142 | dev_uc_unsync(master, dev); |
df02c6ff LB |
143 | if (dev->flags & IFF_ALLMULTI) |
144 | dev_set_allmulti(master, -1); | |
145 | if (dev->flags & IFF_PROMISC) | |
146 | dev_set_promiscuity(master, -1); | |
147 | ||
8feedbb4 | 148 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 149 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 150 | |
91da11f8 LB |
151 | return 0; |
152 | } | |
153 | ||
154 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
155 | { | |
156 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 157 | struct net_device *master = dsa_master_netdev(p); |
91da11f8 LB |
158 | |
159 | if (change & IFF_ALLMULTI) | |
160 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
161 | if (change & IFF_PROMISC) | |
162 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
163 | } | |
164 | ||
165 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
166 | { | |
167 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 168 | struct net_device *master = dsa_master_netdev(p); |
91da11f8 LB |
169 | |
170 | dev_mc_sync(master, dev); | |
a748ee24 | 171 | dev_uc_sync(master, dev); |
91da11f8 LB |
172 | } |
173 | ||
df02c6ff | 174 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 175 | { |
df02c6ff | 176 | struct dsa_slave_priv *p = netdev_priv(dev); |
6d3c8c0d | 177 | struct net_device *master = dsa_master_netdev(p); |
df02c6ff LB |
178 | struct sockaddr *addr = a; |
179 | int err; | |
180 | ||
181 | if (!is_valid_ether_addr(addr->sa_data)) | |
182 | return -EADDRNOTAVAIL; | |
183 | ||
184 | if (!(dev->flags & IFF_UP)) | |
185 | goto out; | |
186 | ||
8feedbb4 | 187 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 188 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
189 | if (err < 0) |
190 | return err; | |
191 | } | |
192 | ||
8feedbb4 | 193 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 194 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
195 | |
196 | out: | |
d08f161a | 197 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
198 | |
199 | return 0; | |
200 | } | |
201 | ||
2bedde1a AS |
202 | struct dsa_slave_dump_ctx { |
203 | struct net_device *dev; | |
204 | struct sk_buff *skb; | |
205 | struct netlink_callback *cb; | |
206 | int idx; | |
207 | }; | |
208 | ||
209 | static int | |
210 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
211 | bool is_static, void *data) | |
212 | { | |
213 | struct dsa_slave_dump_ctx *dump = data; | |
214 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
215 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
216 | struct nlmsghdr *nlh; | |
217 | struct ndmsg *ndm; | |
218 | ||
219 | if (dump->idx < dump->cb->args[2]) | |
220 | goto skip; | |
221 | ||
222 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
223 | sizeof(*ndm), NLM_F_MULTI); | |
224 | if (!nlh) | |
225 | return -EMSGSIZE; | |
226 | ||
227 | ndm = nlmsg_data(nlh); | |
228 | ndm->ndm_family = AF_BRIDGE; | |
229 | ndm->ndm_pad1 = 0; | |
230 | ndm->ndm_pad2 = 0; | |
231 | ndm->ndm_flags = NTF_SELF; | |
232 | ndm->ndm_type = 0; | |
233 | ndm->ndm_ifindex = dump->dev->ifindex; | |
234 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
235 | ||
236 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
237 | goto nla_put_failure; | |
238 | ||
239 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
240 | goto nla_put_failure; | |
241 | ||
242 | nlmsg_end(dump->skb, nlh); | |
243 | ||
244 | skip: | |
245 | dump->idx++; | |
246 | return 0; | |
247 | ||
248 | nla_put_failure: | |
249 | nlmsg_cancel(dump->skb, nlh); | |
250 | return -EMSGSIZE; | |
251 | } | |
252 | ||
253 | static int | |
254 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
255 | struct net_device *dev, struct net_device *filter_dev, | |
256 | int *idx) | |
257 | { | |
258 | struct dsa_slave_dump_ctx dump = { | |
259 | .dev = dev, | |
260 | .skb = skb, | |
261 | .cb = cb, | |
262 | .idx = *idx, | |
263 | }; | |
264 | struct dsa_slave_priv *p = netdev_priv(dev); | |
265 | struct dsa_port *dp = p->dp; | |
2bedde1a AS |
266 | int err; |
267 | ||
de40fc5d | 268 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 269 | *idx = dump.idx; |
de40fc5d | 270 | |
2bedde1a AS |
271 | return err; |
272 | } | |
273 | ||
91da11f8 LB |
274 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
275 | { | |
276 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
277 | |
278 | if (p->phy != NULL) | |
28b04113 | 279 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
280 | |
281 | return -EOPNOTSUPP; | |
282 | } | |
283 | ||
35636062 | 284 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 285 | const struct switchdev_attr *attr, |
7ea6eb3f | 286 | struct switchdev_trans *trans) |
35636062 | 287 | { |
fd364541 VD |
288 | struct dsa_slave_priv *p = netdev_priv(dev); |
289 | struct dsa_port *dp = p->dp; | |
b8d866ac | 290 | int ret; |
35636062 SF |
291 | |
292 | switch (attr->id) { | |
1f868398 | 293 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 294 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 295 | break; |
fb2dabad | 296 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
297 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
298 | trans); | |
fb2dabad | 299 | break; |
34a79f63 | 300 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 301 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 302 | break; |
35636062 SF |
303 | default: |
304 | ret = -EOPNOTSUPP; | |
305 | break; | |
306 | } | |
307 | ||
308 | return ret; | |
309 | } | |
310 | ||
ba14d9eb | 311 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 312 | const struct switchdev_obj *obj, |
7ea6eb3f | 313 | struct switchdev_trans *trans) |
ba14d9eb | 314 | { |
3fdb023b VD |
315 | struct dsa_slave_priv *p = netdev_priv(dev); |
316 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
317 | int err; |
318 | ||
319 | /* For the prepare phase, ensure the full set of changes is feasable in | |
320 | * one go in order to signal a failure properly. If an operation is not | |
321 | * supported, return -EOPNOTSUPP. | |
322 | */ | |
323 | ||
9e8f4a54 | 324 | switch (obj->id) { |
8df30255 | 325 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 326 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 327 | break; |
57d80838 | 328 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
329 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
330 | trans); | |
11149536 | 331 | break; |
ba14d9eb VD |
332 | default: |
333 | err = -EOPNOTSUPP; | |
334 | break; | |
335 | } | |
336 | ||
337 | return err; | |
338 | } | |
339 | ||
340 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 341 | const struct switchdev_obj *obj) |
ba14d9eb | 342 | { |
3fdb023b VD |
343 | struct dsa_slave_priv *p = netdev_priv(dev); |
344 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
345 | int err; |
346 | ||
9e8f4a54 | 347 | switch (obj->id) { |
8df30255 | 348 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 349 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 350 | break; |
57d80838 | 351 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 352 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 353 | break; |
ba14d9eb VD |
354 | default: |
355 | err = -EOPNOTSUPP; | |
356 | break; | |
357 | } | |
358 | ||
359 | return err; | |
360 | } | |
361 | ||
f8e20a9f SF |
362 | static int dsa_slave_port_attr_get(struct net_device *dev, |
363 | struct switchdev_attr *attr) | |
b73adef6 FF |
364 | { |
365 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 366 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 367 | |
f8e20a9f | 368 | switch (attr->id) { |
1f868398 | 369 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
370 | attr->u.ppid.id_len = sizeof(ds->index); |
371 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f | 372 | break; |
c9e2105e AS |
373 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT: |
374 | attr->u.brport_flags_support = 0; | |
375 | break; | |
f8e20a9f SF |
376 | default: |
377 | return -EOPNOTSUPP; | |
378 | } | |
b73adef6 FF |
379 | |
380 | return 0; | |
381 | } | |
382 | ||
4fa7b718 VD |
383 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
384 | struct sk_buff *skb) | |
04ff53f9 FF |
385 | { |
386 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
387 | struct dsa_slave_priv *p = netdev_priv(dev); |
388 | ||
04ff53f9 FF |
389 | if (p->netpoll) |
390 | netpoll_send_skb(p->netpoll, skb); | |
391 | #else | |
392 | BUG(); | |
393 | #endif | |
394 | return NETDEV_TX_OK; | |
395 | } | |
396 | ||
3e8a72d1 FF |
397 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
398 | { | |
399 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 400 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 401 | struct sk_buff *nskb; |
3e8a72d1 | 402 | |
5f6b4e14 FF |
403 | s = this_cpu_ptr(p->stats64); |
404 | u64_stats_update_begin(&s->syncp); | |
405 | s->tx_packets++; | |
406 | s->tx_bytes += skb->len; | |
407 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 408 | |
fe47d563 VD |
409 | /* Transmit function may have to reallocate the original SKB, |
410 | * in which case it must have freed it. Only free it here on error. | |
411 | */ | |
4ed70ce9 | 412 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
413 | if (!nskb) { |
414 | kfree_skb(skb); | |
4ed70ce9 | 415 | return NETDEV_TX_OK; |
fe47d563 | 416 | } |
5aed85ce | 417 | |
04ff53f9 FF |
418 | /* SKB for netpoll still need to be mangled with the protocol-specific |
419 | * tag to be successfully transmitted | |
420 | */ | |
421 | if (unlikely(netpoll_tx_running(dev))) | |
4fa7b718 | 422 | return dsa_slave_netpoll_send_skb(dev, nskb); |
04ff53f9 | 423 | |
4ed70ce9 FF |
424 | /* Queue the SKB for transmission on the parent interface, but |
425 | * do not modify its EtherType | |
426 | */ | |
6d3c8c0d | 427 | nskb->dev = dsa_master_netdev(p); |
4ed70ce9 | 428 | dev_queue_xmit(nskb); |
5aed85ce FF |
429 | |
430 | return NETDEV_TX_OK; | |
431 | } | |
432 | ||
91da11f8 LB |
433 | /* ethtool operations *******************************************************/ |
434 | static int | |
bb10bb3e PR |
435 | dsa_slave_get_link_ksettings(struct net_device *dev, |
436 | struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
437 | { |
438 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 | 439 | |
5514174f | 440 | if (!p->phy) |
441 | return -EOPNOTSUPP; | |
91da11f8 | 442 | |
5514174f | 443 | phy_ethtool_ksettings_get(p->phy, cmd); |
444 | ||
445 | return 0; | |
91da11f8 LB |
446 | } |
447 | ||
448 | static int | |
bb10bb3e PR |
449 | dsa_slave_set_link_ksettings(struct net_device *dev, |
450 | const struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
451 | { |
452 | struct dsa_slave_priv *p = netdev_priv(dev); | |
453 | ||
454 | if (p->phy != NULL) | |
bb10bb3e | 455 | return phy_ethtool_ksettings_set(p->phy, cmd); |
91da11f8 LB |
456 | |
457 | return -EOPNOTSUPP; | |
458 | } | |
459 | ||
460 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
461 | struct ethtool_drvinfo *drvinfo) | |
462 | { | |
7826d43f | 463 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
464 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
465 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
466 | } |
467 | ||
3d762a0f GR |
468 | static int dsa_slave_get_regs_len(struct net_device *dev) |
469 | { | |
470 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 471 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 472 | |
9d490b4e | 473 | if (ds->ops->get_regs_len) |
afdcf151 | 474 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
475 | |
476 | return -EOPNOTSUPP; | |
477 | } | |
478 | ||
479 | static void | |
480 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
481 | { | |
482 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 483 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 484 | |
9d490b4e | 485 | if (ds->ops->get_regs) |
afdcf151 | 486 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
487 | } |
488 | ||
91da11f8 LB |
489 | static int dsa_slave_nway_reset(struct net_device *dev) |
490 | { | |
491 | struct dsa_slave_priv *p = netdev_priv(dev); | |
492 | ||
493 | if (p->phy != NULL) | |
494 | return genphy_restart_aneg(p->phy); | |
495 | ||
496 | return -EOPNOTSUPP; | |
497 | } | |
498 | ||
499 | static u32 dsa_slave_get_link(struct net_device *dev) | |
500 | { | |
501 | struct dsa_slave_priv *p = netdev_priv(dev); | |
502 | ||
503 | if (p->phy != NULL) { | |
504 | genphy_update_link(p->phy); | |
505 | return p->phy->link; | |
506 | } | |
507 | ||
508 | return -EOPNOTSUPP; | |
509 | } | |
510 | ||
6793abb4 GR |
511 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
512 | { | |
513 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 514 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 515 | |
0e576044 | 516 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 517 | return ds->cd->eeprom_len; |
6793abb4 | 518 | |
9d490b4e VD |
519 | if (ds->ops->get_eeprom_len) |
520 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
521 | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
526 | struct ethtool_eeprom *eeprom, u8 *data) | |
527 | { | |
528 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 529 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 530 | |
9d490b4e VD |
531 | if (ds->ops->get_eeprom) |
532 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
533 | |
534 | return -EOPNOTSUPP; | |
535 | } | |
536 | ||
537 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
538 | struct ethtool_eeprom *eeprom, u8 *data) | |
539 | { | |
540 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 541 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 542 | |
9d490b4e VD |
543 | if (ds->ops->set_eeprom) |
544 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
545 | |
546 | return -EOPNOTSUPP; | |
547 | } | |
548 | ||
91da11f8 LB |
549 | static void dsa_slave_get_strings(struct net_device *dev, |
550 | uint32_t stringset, uint8_t *data) | |
551 | { | |
552 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 553 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
554 | |
555 | if (stringset == ETH_SS_STATS) { | |
556 | int len = ETH_GSTRING_LEN; | |
557 | ||
558 | strncpy(data, "tx_packets", len); | |
559 | strncpy(data + len, "tx_bytes", len); | |
560 | strncpy(data + 2 * len, "rx_packets", len); | |
561 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 562 | if (ds->ops->get_strings) |
afdcf151 | 563 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
564 | } |
565 | } | |
566 | ||
567 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
568 | struct ethtool_stats *stats, | |
569 | uint64_t *data) | |
570 | { | |
571 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 572 | struct dsa_switch *ds = p->dp->ds; |
5f6b4e14 | 573 | struct pcpu_sw_netstats *s; |
f613ed66 | 574 | unsigned int start; |
5f6b4e14 FF |
575 | int i; |
576 | ||
577 | for_each_possible_cpu(i) { | |
578 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
579 | ||
580 | s = per_cpu_ptr(p->stats64, i); | |
581 | do { | |
582 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
583 | tx_packets = s->tx_packets; | |
584 | tx_bytes = s->tx_bytes; | |
585 | rx_packets = s->rx_packets; | |
586 | rx_bytes = s->rx_bytes; | |
587 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
588 | data[0] += tx_packets; | |
589 | data[1] += tx_bytes; | |
590 | data[2] += rx_packets; | |
591 | data[3] += rx_bytes; | |
592 | } | |
9d490b4e | 593 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 594 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
595 | } |
596 | ||
597 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
598 | { | |
599 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 600 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
601 | |
602 | if (sset == ETH_SS_STATS) { | |
603 | int count; | |
604 | ||
605 | count = 4; | |
9d490b4e VD |
606 | if (ds->ops->get_sset_count) |
607 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
608 | |
609 | return count; | |
610 | } | |
611 | ||
612 | return -EOPNOTSUPP; | |
613 | } | |
614 | ||
19e57c4e FF |
615 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
616 | { | |
617 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 618 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 619 | |
9d490b4e | 620 | if (ds->ops->get_wol) |
afdcf151 | 621 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
622 | } |
623 | ||
624 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
625 | { | |
626 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 627 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
628 | int ret = -EOPNOTSUPP; |
629 | ||
9d490b4e | 630 | if (ds->ops->set_wol) |
afdcf151 | 631 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
632 | |
633 | return ret; | |
634 | } | |
635 | ||
7905288f FF |
636 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
637 | { | |
638 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 639 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
640 | int ret; |
641 | ||
7b9cc738 VD |
642 | /* Port's PHY and MAC both need to be EEE capable */ |
643 | if (!p->phy) | |
644 | return -ENODEV; | |
645 | ||
08f50061 | 646 | if (!ds->ops->set_mac_eee) |
7905288f FF |
647 | return -EOPNOTSUPP; |
648 | ||
08f50061 | 649 | ret = ds->ops->set_mac_eee(ds, p->dp->index, e); |
7905288f FF |
650 | if (ret) |
651 | return ret; | |
652 | ||
c48f7eb3 VD |
653 | if (e->eee_enabled) { |
654 | ret = phy_init_eee(p->phy, 0); | |
655 | if (ret) | |
656 | return ret; | |
657 | } | |
658 | ||
7b9cc738 | 659 | return phy_ethtool_set_eee(p->phy, e); |
7905288f FF |
660 | } |
661 | ||
662 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
663 | { | |
664 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 665 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
666 | int ret; |
667 | ||
7b9cc738 VD |
668 | /* Port's PHY and MAC both need to be EEE capable */ |
669 | if (!p->phy) | |
670 | return -ENODEV; | |
671 | ||
08f50061 | 672 | if (!ds->ops->get_mac_eee) |
7905288f FF |
673 | return -EOPNOTSUPP; |
674 | ||
08f50061 | 675 | ret = ds->ops->get_mac_eee(ds, p->dp->index, e); |
7905288f FF |
676 | if (ret) |
677 | return ret; | |
678 | ||
7b9cc738 | 679 | return phy_ethtool_get_eee(p->phy, e); |
7905288f FF |
680 | } |
681 | ||
04ff53f9 FF |
682 | #ifdef CONFIG_NET_POLL_CONTROLLER |
683 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
684 | struct netpoll_info *ni) | |
685 | { | |
686 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 687 | struct net_device *master = dsa_master_netdev(p); |
04ff53f9 FF |
688 | struct netpoll *netpoll; |
689 | int err = 0; | |
690 | ||
691 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
692 | if (!netpoll) | |
693 | return -ENOMEM; | |
694 | ||
695 | err = __netpoll_setup(netpoll, master); | |
696 | if (err) { | |
697 | kfree(netpoll); | |
698 | goto out; | |
699 | } | |
700 | ||
701 | p->netpoll = netpoll; | |
702 | out: | |
703 | return err; | |
704 | } | |
705 | ||
706 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
707 | { | |
708 | struct dsa_slave_priv *p = netdev_priv(dev); | |
709 | struct netpoll *netpoll = p->netpoll; | |
710 | ||
711 | if (!netpoll) | |
712 | return; | |
713 | ||
714 | p->netpoll = NULL; | |
715 | ||
716 | __netpoll_free_async(netpoll); | |
717 | } | |
718 | ||
719 | static void dsa_slave_poll_controller(struct net_device *dev) | |
720 | { | |
721 | } | |
722 | #endif | |
723 | ||
44bb765c FF |
724 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
725 | char *name, size_t len) | |
726 | { | |
727 | struct dsa_slave_priv *p = netdev_priv(dev); | |
728 | ||
afdcf151 | 729 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 730 | return -EINVAL; |
3a543ef4 FF |
731 | |
732 | return 0; | |
733 | } | |
734 | ||
f50f2127 | 735 | static struct dsa_mall_tc_entry * |
4fa7b718 | 736 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 737 | { |
4fa7b718 | 738 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
739 | struct dsa_mall_tc_entry *mall_tc_entry; |
740 | ||
741 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
742 | if (mall_tc_entry->cookie == cookie) | |
743 | return mall_tc_entry; | |
744 | ||
745 | return NULL; | |
746 | } | |
747 | ||
748 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
749 | struct tc_cls_matchall_offload *cls, |
750 | bool ingress) | |
751 | { | |
752 | struct dsa_slave_priv *p = netdev_priv(dev); | |
753 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 754 | __be16 protocol = cls->common.protocol; |
f50f2127 FF |
755 | struct dsa_switch *ds = p->dp->ds; |
756 | struct net *net = dev_net(dev); | |
757 | struct dsa_slave_priv *to_p; | |
758 | struct net_device *to_dev; | |
759 | const struct tc_action *a; | |
760 | int err = -EOPNOTSUPP; | |
761 | LIST_HEAD(actions); | |
762 | int ifindex; | |
763 | ||
764 | if (!ds->ops->port_mirror_add) | |
765 | return err; | |
766 | ||
3bcc0cec | 767 | if (!tcf_exts_has_one_action(cls->exts)) |
f50f2127 FF |
768 | return err; |
769 | ||
770 | tcf_exts_to_list(cls->exts, &actions); | |
771 | a = list_first_entry(&actions, struct tc_action, list); | |
772 | ||
773 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
774 | struct dsa_mall_mirror_tc_entry *mirror; | |
775 | ||
776 | ifindex = tcf_mirred_ifindex(a); | |
777 | to_dev = __dev_get_by_index(net, ifindex); | |
778 | if (!to_dev) | |
779 | return -EINVAL; | |
780 | ||
781 | if (!dsa_slave_dev_check(to_dev)) | |
782 | return -EOPNOTSUPP; | |
783 | ||
784 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
785 | if (!mall_tc_entry) | |
786 | return -ENOMEM; | |
787 | ||
788 | mall_tc_entry->cookie = cls->cookie; | |
789 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
790 | mirror = &mall_tc_entry->mirror; | |
791 | ||
792 | to_p = netdev_priv(to_dev); | |
793 | ||
794 | mirror->to_local_port = to_p->dp->index; | |
795 | mirror->ingress = ingress; | |
796 | ||
797 | err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, | |
798 | ingress); | |
799 | if (err) { | |
800 | kfree(mall_tc_entry); | |
801 | return err; | |
802 | } | |
803 | ||
804 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
805 | } | |
806 | ||
807 | return 0; | |
808 | } | |
809 | ||
810 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
811 | struct tc_cls_matchall_offload *cls) | |
812 | { | |
813 | struct dsa_slave_priv *p = netdev_priv(dev); | |
814 | struct dsa_mall_tc_entry *mall_tc_entry; | |
815 | struct dsa_switch *ds = p->dp->ds; | |
816 | ||
817 | if (!ds->ops->port_mirror_del) | |
818 | return; | |
819 | ||
4fa7b718 | 820 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
821 | if (!mall_tc_entry) |
822 | return; | |
823 | ||
824 | list_del(&mall_tc_entry->list); | |
825 | ||
826 | switch (mall_tc_entry->type) { | |
827 | case DSA_PORT_MALL_MIRROR: | |
828 | ds->ops->port_mirror_del(ds, p->dp->index, | |
829 | &mall_tc_entry->mirror); | |
830 | break; | |
831 | default: | |
832 | WARN_ON(1); | |
833 | } | |
834 | ||
835 | kfree(mall_tc_entry); | |
836 | } | |
837 | ||
3fbae382 | 838 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
3fbae382 | 839 | struct tc_cls_matchall_offload *cls) |
f50f2127 | 840 | { |
a2e8da93 JP |
841 | bool ingress; |
842 | ||
843 | if (is_classid_clsact_ingress(cls->common.classid)) | |
844 | ingress = true; | |
845 | else if (is_classid_clsact_egress(cls->common.classid)) | |
846 | ingress = false; | |
847 | else | |
848 | return -EOPNOTSUPP; | |
a5fcf8a6 | 849 | |
5fd9fc4e | 850 | if (cls->common.chain_index) |
a5fcf8a6 | 851 | return -EOPNOTSUPP; |
f50f2127 | 852 | |
3fbae382 JP |
853 | switch (cls->command) { |
854 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 855 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
856 | case TC_CLSMATCHALL_DESTROY: |
857 | dsa_slave_del_cls_matchall(dev, cls); | |
858 | return 0; | |
859 | default: | |
860 | return -EOPNOTSUPP; | |
861 | } | |
862 | } | |
863 | ||
864 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, | |
de4784ca | 865 | void *type_data) |
3fbae382 | 866 | { |
2572ac53 | 867 | switch (type) { |
ade9b658 | 868 | case TC_SETUP_CLSMATCHALL: |
de4784ca | 869 | return dsa_slave_setup_tc_cls_matchall(dev, type_data); |
f50f2127 | 870 | default: |
a5fcf8a6 | 871 | return -EOPNOTSUPP; |
f50f2127 | 872 | } |
f50f2127 FF |
873 | } |
874 | ||
f613ed66 FF |
875 | static void dsa_slave_get_stats64(struct net_device *dev, |
876 | struct rtnl_link_stats64 *stats) | |
877 | { | |
878 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 879 | struct pcpu_sw_netstats *s; |
f613ed66 | 880 | unsigned int start; |
5f6b4e14 | 881 | int i; |
f613ed66 FF |
882 | |
883 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
884 | for_each_possible_cpu(i) { |
885 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
886 | ||
887 | s = per_cpu_ptr(p->stats64, i); | |
888 | do { | |
889 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
890 | tx_packets = s->tx_packets; | |
891 | tx_bytes = s->tx_bytes; | |
892 | rx_packets = s->rx_packets; | |
893 | rx_bytes = s->rx_bytes; | |
894 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
895 | ||
896 | stats->tx_packets += tx_packets; | |
897 | stats->tx_bytes += tx_bytes; | |
898 | stats->rx_packets += rx_packets; | |
899 | stats->rx_bytes += rx_bytes; | |
900 | } | |
f613ed66 FF |
901 | } |
902 | ||
bf9f2648 FF |
903 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
904 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
905 | { | |
906 | struct dsa_slave_priv *p = netdev_priv(dev); | |
907 | struct dsa_switch *ds = p->dp->ds; | |
908 | ||
909 | if (!ds->ops->get_rxnfc) | |
910 | return -EOPNOTSUPP; | |
911 | ||
912 | return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); | |
913 | } | |
914 | ||
915 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
916 | struct ethtool_rxnfc *nfc) | |
917 | { | |
918 | struct dsa_slave_priv *p = netdev_priv(dev); | |
919 | struct dsa_switch *ds = p->dp->ds; | |
920 | ||
921 | if (!ds->ops->set_rxnfc) | |
922 | return -EOPNOTSUPP; | |
923 | ||
924 | return ds->ops->set_rxnfc(ds, p->dp->index, nfc); | |
925 | } | |
926 | ||
91da11f8 | 927 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 928 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
929 | .get_regs_len = dsa_slave_get_regs_len, |
930 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
931 | .nway_reset = dsa_slave_nway_reset, |
932 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
933 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
934 | .get_eeprom = dsa_slave_get_eeprom, | |
935 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
936 | .get_strings = dsa_slave_get_strings, |
937 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
938 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
939 | .set_wol = dsa_slave_set_wol, |
940 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
941 | .set_eee = dsa_slave_set_eee, |
942 | .get_eee = dsa_slave_get_eee, | |
bb10bb3e PR |
943 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
944 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
945 | .get_rxnfc = dsa_slave_get_rxnfc, |
946 | .set_rxnfc = dsa_slave_set_rxnfc, | |
91da11f8 LB |
947 | }; |
948 | ||
3e8a72d1 | 949 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
950 | .ndo_open = dsa_slave_open, |
951 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 952 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
953 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
954 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 955 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
956 | .ndo_fdb_add = dsa_legacy_fdb_add, |
957 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 958 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 959 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 960 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
961 | #ifdef CONFIG_NET_POLL_CONTROLLER |
962 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
963 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
964 | .ndo_poll_controller = dsa_slave_poll_controller, | |
965 | #endif | |
44bb765c | 966 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 967 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 968 | .ndo_get_stats64 = dsa_slave_get_stats64, |
98237d43 SF |
969 | }; |
970 | ||
9d47c0a2 | 971 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 972 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 973 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
974 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
975 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
d442ad4a | 976 | }; |
91da11f8 | 977 | |
f37db85d FF |
978 | static struct device_type dsa_type = { |
979 | .name = "dsa", | |
980 | }; | |
981 | ||
0d8bcdd3 FF |
982 | static void dsa_slave_adjust_link(struct net_device *dev) |
983 | { | |
984 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 985 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
986 | unsigned int status_changed = 0; |
987 | ||
988 | if (p->old_link != p->phy->link) { | |
989 | status_changed = 1; | |
990 | p->old_link = p->phy->link; | |
991 | } | |
992 | ||
993 | if (p->old_duplex != p->phy->duplex) { | |
994 | status_changed = 1; | |
995 | p->old_duplex = p->phy->duplex; | |
996 | } | |
997 | ||
998 | if (p->old_pause != p->phy->pause) { | |
999 | status_changed = 1; | |
1000 | p->old_pause = p->phy->pause; | |
1001 | } | |
1002 | ||
9d490b4e | 1003 | if (ds->ops->adjust_link && status_changed) |
afdcf151 | 1004 | ds->ops->adjust_link(ds, p->dp->index, p->phy); |
ec9436ba | 1005 | |
0d8bcdd3 FF |
1006 | if (status_changed) |
1007 | phy_print_status(p->phy); | |
1008 | } | |
1009 | ||
ce31b31c FF |
1010 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1011 | struct fixed_phy_status *status) | |
1012 | { | |
b71be352 AL |
1013 | struct dsa_slave_priv *p; |
1014 | struct dsa_switch *ds; | |
1015 | ||
1016 | if (dev) { | |
1017 | p = netdev_priv(dev); | |
afdcf151 | 1018 | ds = p->dp->ds; |
9d490b4e | 1019 | if (ds->ops->fixed_link_update) |
afdcf151 | 1020 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 1021 | } |
ce31b31c FF |
1022 | |
1023 | return 0; | |
1024 | } | |
1025 | ||
91da11f8 | 1026 | /* slave device setup *******************************************************/ |
4fa7b718 | 1027 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 1028 | { |
4fa7b718 | 1029 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
afdcf151 | 1030 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 1031 | |
7f854420 | 1032 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1033 | if (!p->phy) { |
1034 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1035 | return -ENODEV; |
d25b8e74 | 1036 | } |
c305c165 FF |
1037 | |
1038 | /* Use already configured phy mode */ | |
211c504a FF |
1039 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1040 | p->phy_interface = p->phy->interface; | |
4078b76c FF |
1041 | return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1042 | p->phy_interface); | |
c305c165 FF |
1043 | } |
1044 | ||
4fa7b718 | 1045 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 1046 | { |
4fa7b718 | 1047 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
afdcf151 | 1048 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1049 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1050 | bool phy_is_fixed = false; |
6819563e | 1051 | u32 phy_flags = 0; |
19334920 | 1052 | int mode, ret; |
0d8bcdd3 | 1053 | |
afdcf151 | 1054 | port_dn = p->dp->dn; |
19334920 GR |
1055 | mode = of_get_phy_mode(port_dn); |
1056 | if (mode < 0) | |
1057 | mode = PHY_INTERFACE_MODE_NA; | |
1058 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1059 | |
1060 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1061 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1062 | /* In the case of a fixed PHY, the DT node associated |
1063 | * to the fixed PHY is the Port DT node | |
1064 | */ | |
1065 | ret = of_phy_register_fixed_link(port_dn); | |
1066 | if (ret) { | |
d25b8e74 | 1067 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1068 | return ret; |
0d8bcdd3 | 1069 | } |
ce31b31c | 1070 | phy_is_fixed = true; |
0d8f3c67 | 1071 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1072 | } |
1073 | ||
9d490b4e | 1074 | if (ds->ops->get_phy_flags) |
afdcf151 | 1075 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1076 | |
cd28a1a9 | 1077 | if (phy_dn) { |
d25b8e74 RK |
1078 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1079 | ||
cd28a1a9 FF |
1080 | /* If this PHY address is part of phys_mii_mask, which means |
1081 | * that we need to divert reads and writes to/from it, then we | |
1082 | * want to bind this device using the slave MII bus created by | |
1083 | * DSA to make that happen. | |
1084 | */ | |
d25b8e74 RK |
1085 | if (!phy_is_fixed && phy_id >= 0 && |
1086 | (ds->phys_mii_mask & (1 << phy_id))) { | |
4fa7b718 | 1087 | ret = dsa_slave_phy_connect(slave_dev, phy_id); |
d25b8e74 RK |
1088 | if (ret) { |
1089 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1090 | of_node_put(phy_dn); |
cd28a1a9 | 1091 | return ret; |
d25b8e74 | 1092 | } |
cd28a1a9 FF |
1093 | } else { |
1094 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1095 | dsa_slave_adjust_link, | |
1096 | phy_flags, | |
1097 | p->phy_interface); | |
1098 | } | |
0d8f3c67 JH |
1099 | |
1100 | of_node_put(phy_dn); | |
cd28a1a9 | 1101 | } |
0d8bcdd3 | 1102 | |
ce31b31c FF |
1103 | if (p->phy && phy_is_fixed) |
1104 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1105 | ||
0d8bcdd3 FF |
1106 | /* We could not connect to a designated PHY, so use the switch internal |
1107 | * MDIO bus instead | |
1108 | */ | |
b31f65fb | 1109 | if (!p->phy) { |
4fa7b718 | 1110 | ret = dsa_slave_phy_connect(slave_dev, p->dp->index); |
d25b8e74 | 1111 | if (ret) { |
afdcf151 VD |
1112 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1113 | p->dp->index, ret); | |
881eadab JH |
1114 | if (phy_is_fixed) |
1115 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1116 | return ret; |
d25b8e74 | 1117 | } |
b31f65fb | 1118 | } |
9697f1cd | 1119 | |
2220943a AL |
1120 | phy_attached_info(p->phy); |
1121 | ||
9697f1cd | 1122 | return 0; |
0d8bcdd3 FF |
1123 | } |
1124 | ||
448b4482 AL |
1125 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1126 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1127 | struct netdev_queue *txq, | |
1128 | void *_unused) | |
1129 | { | |
1130 | lockdep_set_class(&txq->_xmit_lock, | |
1131 | &dsa_slave_netdev_xmit_lock_key); | |
1132 | } | |
1133 | ||
24462549 FF |
1134 | int dsa_slave_suspend(struct net_device *slave_dev) |
1135 | { | |
1136 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1137 | ||
f154be24 FF |
1138 | netif_device_detach(slave_dev); |
1139 | ||
24462549 FF |
1140 | if (p->phy) { |
1141 | phy_stop(p->phy); | |
1142 | p->old_pause = -1; | |
1143 | p->old_link = -1; | |
1144 | p->old_duplex = -1; | |
1145 | phy_suspend(p->phy); | |
1146 | } | |
1147 | ||
1148 | return 0; | |
1149 | } | |
1150 | ||
1151 | int dsa_slave_resume(struct net_device *slave_dev) | |
1152 | { | |
1153 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1154 | ||
1155 | netif_device_attach(slave_dev); | |
1156 | ||
1157 | if (p->phy) { | |
1158 | phy_resume(p->phy); | |
1159 | phy_start(p->phy); | |
1160 | } | |
1161 | ||
1162 | return 0; | |
1163 | } | |
1164 | ||
4cfbf09c | 1165 | int dsa_slave_create(struct dsa_port *port, const char *name) |
91da11f8 | 1166 | { |
4cfbf09c | 1167 | struct dsa_switch *ds = port->ds; |
badf3ada | 1168 | struct dsa_switch_tree *dst = ds->dst; |
83c0afae | 1169 | struct net_device *master; |
91da11f8 LB |
1170 | struct net_device *slave_dev; |
1171 | struct dsa_slave_priv *p; | |
a29342e7 | 1172 | struct dsa_port *cpu_dp; |
91da11f8 LB |
1173 | int ret; |
1174 | ||
a29342e7 FF |
1175 | cpu_dp = ds->dst->cpu_dp; |
1176 | master = cpu_dp->netdev; | |
83c0afae | 1177 | |
55199df6 FF |
1178 | if (!ds->num_tx_queues) |
1179 | ds->num_tx_queues = 1; | |
1180 | ||
1181 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1182 | NET_NAME_UNKNOWN, ether_setup, | |
1183 | ds->num_tx_queues, 1); | |
91da11f8 | 1184 | if (slave_dev == NULL) |
d87d6f44 | 1185 | return -ENOMEM; |
91da11f8 | 1186 | |
f50f2127 FF |
1187 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1188 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1189 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1190 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1191 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1192 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1193 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1194 | slave_dev->min_mtu = 0; |
1195 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1196 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1197 | |
448b4482 AL |
1198 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1199 | NULL); | |
1200 | ||
4cfbf09c VD |
1201 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1202 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1203 | slave_dev->vlan_features = master->vlan_features; |
1204 | ||
1205 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1206 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1207 | if (!p->stats64) { | |
1208 | free_netdev(slave_dev); | |
1209 | return -ENOMEM; | |
1210 | } | |
4cfbf09c | 1211 | p->dp = port; |
f50f2127 | 1212 | INIT_LIST_HEAD(&p->mall_tc_list); |
39a7f2a4 | 1213 | p->xmit = dst->tag_ops->xmit; |
d442ad4a | 1214 | |
0d8bcdd3 FF |
1215 | p->old_pause = -1; |
1216 | p->old_link = -1; | |
1217 | p->old_duplex = -1; | |
1218 | ||
4cfbf09c | 1219 | port->netdev = slave_dev; |
91da11f8 LB |
1220 | ret = register_netdev(slave_dev); |
1221 | if (ret) { | |
a2ae6007 JP |
1222 | netdev_err(master, "error %d registering interface %s\n", |
1223 | ret, slave_dev->name); | |
4cfbf09c | 1224 | port->netdev = NULL; |
5f6b4e14 | 1225 | free_percpu(p->stats64); |
91da11f8 | 1226 | free_netdev(slave_dev); |
d87d6f44 | 1227 | return ret; |
91da11f8 LB |
1228 | } |
1229 | ||
1230 | netif_carrier_off(slave_dev); | |
1231 | ||
4fa7b718 | 1232 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1233 | if (ret) { |
1234 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1235 | unregister_netdev(slave_dev); |
5f6b4e14 | 1236 | free_percpu(p->stats64); |
0071f56e AL |
1237 | free_netdev(slave_dev); |
1238 | return ret; | |
1239 | } | |
1240 | ||
d87d6f44 | 1241 | return 0; |
91da11f8 | 1242 | } |
b73adef6 | 1243 | |
cda5c15b NA |
1244 | void dsa_slave_destroy(struct net_device *slave_dev) |
1245 | { | |
1246 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1247 | struct device_node *port_dn; |
1248 | ||
afdcf151 | 1249 | port_dn = p->dp->dn; |
cda5c15b NA |
1250 | |
1251 | netif_carrier_off(slave_dev); | |
881eadab | 1252 | if (p->phy) { |
cda5c15b | 1253 | phy_disconnect(p->phy); |
881eadab JH |
1254 | |
1255 | if (of_phy_is_fixed_link(port_dn)) | |
1256 | of_phy_deregister_fixed_link(port_dn); | |
1257 | } | |
cda5c15b | 1258 | unregister_netdev(slave_dev); |
5f6b4e14 | 1259 | free_percpu(p->stats64); |
cda5c15b NA |
1260 | free_netdev(slave_dev); |
1261 | } | |
1262 | ||
b73adef6 FF |
1263 | static bool dsa_slave_dev_check(struct net_device *dev) |
1264 | { | |
1265 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1266 | } | |
1267 | ||
8e92ab3a VD |
1268 | static int dsa_slave_changeupper(struct net_device *dev, |
1269 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1270 | { |
17d7802b VD |
1271 | struct dsa_slave_priv *p = netdev_priv(dev); |
1272 | struct dsa_port *dp = p->dp; | |
8e92ab3a | 1273 | int err = NOTIFY_DONE; |
b73adef6 | 1274 | |
8e92ab3a VD |
1275 | if (netif_is_bridge_master(info->upper_dev)) { |
1276 | if (info->linking) { | |
17d7802b | 1277 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1278 | err = notifier_from_errno(err); |
1279 | } else { | |
17d7802b | 1280 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1281 | err = NOTIFY_OK; |
6debb68a | 1282 | } |
6debb68a | 1283 | } |
b73adef6 | 1284 | |
8e92ab3a | 1285 | return err; |
6debb68a | 1286 | } |
b73adef6 | 1287 | |
88e4f0ca VD |
1288 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1289 | unsigned long event, void *ptr) | |
6debb68a VD |
1290 | { |
1291 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1292 | ||
53bade8a | 1293 | if (!dsa_slave_dev_check(dev)) |
8e92ab3a VD |
1294 | return NOTIFY_DONE; |
1295 | ||
1296 | if (event == NETDEV_CHANGEUPPER) | |
1297 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1298 | |
b73adef6 FF |
1299 | return NOTIFY_DONE; |
1300 | } | |
88e4f0ca | 1301 | |
c9eb3e0f AS |
1302 | struct dsa_switchdev_event_work { |
1303 | struct work_struct work; | |
1304 | struct switchdev_notifier_fdb_info fdb_info; | |
1305 | struct net_device *dev; | |
1306 | unsigned long event; | |
1307 | }; | |
1308 | ||
1309 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1310 | { | |
1311 | struct dsa_switchdev_event_work *switchdev_work = | |
1312 | container_of(work, struct dsa_switchdev_event_work, work); | |
1313 | struct net_device *dev = switchdev_work->dev; | |
1314 | struct switchdev_notifier_fdb_info *fdb_info; | |
1315 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1316 | int err; | |
1317 | ||
1318 | rtnl_lock(); | |
1319 | switch (switchdev_work->event) { | |
1320 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1321 | fdb_info = &switchdev_work->fdb_info; | |
1322 | err = dsa_port_fdb_add(p->dp, fdb_info->addr, fdb_info->vid); | |
1323 | if (err) { | |
1324 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1325 | break; | |
1326 | } | |
1327 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, | |
1328 | &fdb_info->info); | |
1329 | break; | |
1330 | ||
1331 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1332 | fdb_info = &switchdev_work->fdb_info; | |
1333 | err = dsa_port_fdb_del(p->dp, fdb_info->addr, fdb_info->vid); | |
1334 | if (err) { | |
1335 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1336 | dev_close(dev); | |
1337 | } | |
1338 | break; | |
1339 | } | |
1340 | rtnl_unlock(); | |
1341 | ||
1342 | kfree(switchdev_work->fdb_info.addr); | |
1343 | kfree(switchdev_work); | |
1344 | dev_put(dev); | |
1345 | } | |
1346 | ||
1347 | static int | |
1348 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1349 | switchdev_work, | |
1350 | const struct switchdev_notifier_fdb_info * | |
1351 | fdb_info) | |
1352 | { | |
1353 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1354 | sizeof(switchdev_work->fdb_info)); | |
1355 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1356 | if (!switchdev_work->fdb_info.addr) | |
1357 | return -ENOMEM; | |
1358 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1359 | fdb_info->addr); | |
1360 | return 0; | |
1361 | } | |
1362 | ||
1363 | /* Called under rcu_read_lock() */ | |
1364 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1365 | unsigned long event, void *ptr) | |
1366 | { | |
1367 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1368 | struct dsa_switchdev_event_work *switchdev_work; | |
1369 | ||
1370 | if (!dsa_slave_dev_check(dev)) | |
1371 | return NOTIFY_DONE; | |
1372 | ||
1373 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); | |
1374 | if (!switchdev_work) | |
1375 | return NOTIFY_BAD; | |
1376 | ||
1377 | INIT_WORK(&switchdev_work->work, | |
1378 | dsa_slave_switchdev_event_work); | |
1379 | switchdev_work->dev = dev; | |
1380 | switchdev_work->event = event; | |
1381 | ||
1382 | switch (event) { | |
1383 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1384 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1385 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, | |
1386 | ptr)) | |
1387 | goto err_fdb_work_init; | |
1388 | dev_hold(dev); | |
1389 | break; | |
1390 | default: | |
1391 | kfree(switchdev_work); | |
1392 | return NOTIFY_DONE; | |
1393 | } | |
1394 | ||
1395 | dsa_schedule_work(&switchdev_work->work); | |
1396 | return NOTIFY_OK; | |
1397 | ||
1398 | err_fdb_work_init: | |
1399 | kfree(switchdev_work); | |
1400 | return NOTIFY_BAD; | |
1401 | } | |
1402 | ||
88e4f0ca | 1403 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1404 | .notifier_call = dsa_slave_netdevice_event, |
1405 | }; | |
1406 | ||
1407 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1408 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1409 | }; |
1410 | ||
1411 | int dsa_slave_register_notifier(void) | |
1412 | { | |
c9eb3e0f AS |
1413 | int err; |
1414 | ||
1415 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1416 | if (err) | |
1417 | return err; | |
1418 | ||
1419 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1420 | if (err) | |
1421 | goto err_switchdev_nb; | |
1422 | ||
1423 | return 0; | |
1424 | ||
1425 | err_switchdev_nb: | |
1426 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1427 | return err; | |
88e4f0ca VD |
1428 | } |
1429 | ||
1430 | void dsa_slave_unregister_notifier(void) | |
1431 | { | |
1432 | int err; | |
1433 | ||
c9eb3e0f AS |
1434 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1435 | if (err) | |
1436 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1437 | ||
88e4f0ca VD |
1438 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1439 | if (err) | |
1440 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1441 | } |