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Commit | Line | Data |
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91da11f8 LB |
1 | /* |
2 | * net/dsa/slave.c - Slave device handling | |
e84665c9 | 3 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | */ | |
10 | ||
11 | #include <linux/list.h> | |
df02c6ff | 12 | #include <linux/etherdevice.h> |
b73adef6 | 13 | #include <linux/netdevice.h> |
91da11f8 | 14 | #include <linux/phy.h> |
a2820543 | 15 | #include <linux/phy_fixed.h> |
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 | 75 | struct dsa_port *dp = p->dp; |
6d3c8c0d | 76 | struct net_device *master = dsa_master_netdev(p); |
df02c6ff LB |
77 | int err; |
78 | ||
79 | if (!(master->flags & IFF_UP)) | |
80 | return -ENETDOWN; | |
81 | ||
8feedbb4 | 82 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) { |
a748ee24 | 83 | err = dev_uc_add(master, dev->dev_addr); |
df02c6ff LB |
84 | if (err < 0) |
85 | goto out; | |
86 | } | |
87 | ||
88 | if (dev->flags & IFF_ALLMULTI) { | |
89 | err = dev_set_allmulti(master, 1); | |
90 | if (err < 0) | |
91 | goto del_unicast; | |
92 | } | |
93 | if (dev->flags & IFF_PROMISC) { | |
94 | err = dev_set_promiscuity(master, 1); | |
95 | if (err < 0) | |
96 | goto clear_allmulti; | |
97 | } | |
98 | ||
0115dcd1 | 99 | err = dsa_port_enable(dp, dev->phydev); |
fb8a6a2b VD |
100 | if (err) |
101 | goto clear_promisc; | |
b73adef6 | 102 | |
0115dcd1 VD |
103 | if (dev->phydev) |
104 | phy_start(dev->phydev); | |
f7f1de51 | 105 | |
91da11f8 | 106 | return 0; |
df02c6ff | 107 | |
b2f2af21 FF |
108 | clear_promisc: |
109 | if (dev->flags & IFF_PROMISC) | |
4fdeddfe | 110 | dev_set_promiscuity(master, -1); |
df02c6ff LB |
111 | clear_allmulti: |
112 | if (dev->flags & IFF_ALLMULTI) | |
113 | dev_set_allmulti(master, -1); | |
114 | del_unicast: | |
8feedbb4 | 115 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 116 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
117 | out: |
118 | return err; | |
91da11f8 LB |
119 | } |
120 | ||
121 | static int dsa_slave_close(struct net_device *dev) | |
122 | { | |
df02c6ff | 123 | struct dsa_slave_priv *p = netdev_priv(dev); |
6d3c8c0d | 124 | struct net_device *master = dsa_master_netdev(p); |
fb8a6a2b | 125 | struct dsa_port *dp = p->dp; |
df02c6ff | 126 | |
0115dcd1 VD |
127 | if (dev->phydev) |
128 | phy_stop(dev->phydev); | |
f7f1de51 | 129 | |
0115dcd1 | 130 | dsa_port_disable(dp, dev->phydev); |
6457edfe | 131 | |
df02c6ff | 132 | dev_mc_unsync(master, dev); |
a748ee24 | 133 | dev_uc_unsync(master, dev); |
df02c6ff LB |
134 | if (dev->flags & IFF_ALLMULTI) |
135 | dev_set_allmulti(master, -1); | |
136 | if (dev->flags & IFF_PROMISC) | |
137 | dev_set_promiscuity(master, -1); | |
138 | ||
8feedbb4 | 139 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 140 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 141 | |
91da11f8 LB |
142 | return 0; |
143 | } | |
144 | ||
145 | static void dsa_slave_change_rx_flags(struct net_device *dev, int change) | |
146 | { | |
147 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 148 | struct net_device *master = dsa_master_netdev(p); |
91da11f8 LB |
149 | |
150 | if (change & IFF_ALLMULTI) | |
151 | dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1); | |
152 | if (change & IFF_PROMISC) | |
153 | dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1); | |
154 | } | |
155 | ||
156 | static void dsa_slave_set_rx_mode(struct net_device *dev) | |
157 | { | |
158 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 159 | struct net_device *master = dsa_master_netdev(p); |
91da11f8 LB |
160 | |
161 | dev_mc_sync(master, dev); | |
a748ee24 | 162 | dev_uc_sync(master, dev); |
91da11f8 LB |
163 | } |
164 | ||
df02c6ff | 165 | static int dsa_slave_set_mac_address(struct net_device *dev, void *a) |
91da11f8 | 166 | { |
df02c6ff | 167 | struct dsa_slave_priv *p = netdev_priv(dev); |
6d3c8c0d | 168 | struct net_device *master = dsa_master_netdev(p); |
df02c6ff LB |
169 | struct sockaddr *addr = a; |
170 | int err; | |
171 | ||
172 | if (!is_valid_ether_addr(addr->sa_data)) | |
173 | return -EADDRNOTAVAIL; | |
174 | ||
175 | if (!(dev->flags & IFF_UP)) | |
176 | goto out; | |
177 | ||
8feedbb4 | 178 | if (!ether_addr_equal(addr->sa_data, master->dev_addr)) { |
a748ee24 | 179 | err = dev_uc_add(master, addr->sa_data); |
df02c6ff LB |
180 | if (err < 0) |
181 | return err; | |
182 | } | |
183 | ||
8feedbb4 | 184 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 185 | dev_uc_del(master, dev->dev_addr); |
df02c6ff LB |
186 | |
187 | out: | |
d08f161a | 188 | ether_addr_copy(dev->dev_addr, addr->sa_data); |
91da11f8 LB |
189 | |
190 | return 0; | |
191 | } | |
192 | ||
2bedde1a AS |
193 | struct dsa_slave_dump_ctx { |
194 | struct net_device *dev; | |
195 | struct sk_buff *skb; | |
196 | struct netlink_callback *cb; | |
197 | int idx; | |
198 | }; | |
199 | ||
200 | static int | |
201 | dsa_slave_port_fdb_do_dump(const unsigned char *addr, u16 vid, | |
202 | bool is_static, void *data) | |
203 | { | |
204 | struct dsa_slave_dump_ctx *dump = data; | |
205 | u32 portid = NETLINK_CB(dump->cb->skb).portid; | |
206 | u32 seq = dump->cb->nlh->nlmsg_seq; | |
207 | struct nlmsghdr *nlh; | |
208 | struct ndmsg *ndm; | |
209 | ||
210 | if (dump->idx < dump->cb->args[2]) | |
211 | goto skip; | |
212 | ||
213 | nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, | |
214 | sizeof(*ndm), NLM_F_MULTI); | |
215 | if (!nlh) | |
216 | return -EMSGSIZE; | |
217 | ||
218 | ndm = nlmsg_data(nlh); | |
219 | ndm->ndm_family = AF_BRIDGE; | |
220 | ndm->ndm_pad1 = 0; | |
221 | ndm->ndm_pad2 = 0; | |
222 | ndm->ndm_flags = NTF_SELF; | |
223 | ndm->ndm_type = 0; | |
224 | ndm->ndm_ifindex = dump->dev->ifindex; | |
225 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; | |
226 | ||
227 | if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) | |
228 | goto nla_put_failure; | |
229 | ||
230 | if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) | |
231 | goto nla_put_failure; | |
232 | ||
233 | nlmsg_end(dump->skb, nlh); | |
234 | ||
235 | skip: | |
236 | dump->idx++; | |
237 | return 0; | |
238 | ||
239 | nla_put_failure: | |
240 | nlmsg_cancel(dump->skb, nlh); | |
241 | return -EMSGSIZE; | |
242 | } | |
243 | ||
244 | static int | |
245 | dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, | |
246 | struct net_device *dev, struct net_device *filter_dev, | |
247 | int *idx) | |
248 | { | |
249 | struct dsa_slave_dump_ctx dump = { | |
250 | .dev = dev, | |
251 | .skb = skb, | |
252 | .cb = cb, | |
253 | .idx = *idx, | |
254 | }; | |
255 | struct dsa_slave_priv *p = netdev_priv(dev); | |
256 | struct dsa_port *dp = p->dp; | |
2bedde1a AS |
257 | int err; |
258 | ||
de40fc5d | 259 | err = dsa_port_fdb_dump(dp, dsa_slave_port_fdb_do_dump, &dump); |
2bedde1a | 260 | *idx = dump.idx; |
de40fc5d | 261 | |
2bedde1a AS |
262 | return err; |
263 | } | |
264 | ||
91da11f8 LB |
265 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
266 | { | |
0115dcd1 | 267 | if (!dev->phydev) |
f4344e0a | 268 | return -ENODEV; |
91da11f8 | 269 | |
0115dcd1 | 270 | return phy_mii_ioctl(dev->phydev, ifr, cmd); |
91da11f8 LB |
271 | } |
272 | ||
35636062 | 273 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 274 | const struct switchdev_attr *attr, |
7ea6eb3f | 275 | struct switchdev_trans *trans) |
35636062 | 276 | { |
fd364541 VD |
277 | struct dsa_slave_priv *p = netdev_priv(dev); |
278 | struct dsa_port *dp = p->dp; | |
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; |
35636062 SF |
292 | default: |
293 | ret = -EOPNOTSUPP; | |
294 | break; | |
295 | } | |
296 | ||
297 | return ret; | |
298 | } | |
299 | ||
ba14d9eb | 300 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 301 | const struct switchdev_obj *obj, |
7ea6eb3f | 302 | struct switchdev_trans *trans) |
ba14d9eb | 303 | { |
3fdb023b VD |
304 | struct dsa_slave_priv *p = netdev_priv(dev); |
305 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
306 | int err; |
307 | ||
308 | /* For the prepare phase, ensure the full set of changes is feasable in | |
309 | * one go in order to signal a failure properly. If an operation is not | |
310 | * supported, return -EOPNOTSUPP. | |
311 | */ | |
312 | ||
9e8f4a54 | 313 | switch (obj->id) { |
8df30255 | 314 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 315 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 316 | break; |
57d80838 | 317 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
318 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
319 | trans); | |
11149536 | 320 | break; |
ba14d9eb VD |
321 | default: |
322 | err = -EOPNOTSUPP; | |
323 | break; | |
324 | } | |
325 | ||
326 | return err; | |
327 | } | |
328 | ||
329 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 330 | const struct switchdev_obj *obj) |
ba14d9eb | 331 | { |
3fdb023b VD |
332 | struct dsa_slave_priv *p = netdev_priv(dev); |
333 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
334 | int err; |
335 | ||
9e8f4a54 | 336 | switch (obj->id) { |
8df30255 | 337 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 338 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 339 | break; |
57d80838 | 340 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 341 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 342 | break; |
ba14d9eb VD |
343 | default: |
344 | err = -EOPNOTSUPP; | |
345 | break; | |
346 | } | |
347 | ||
348 | return err; | |
349 | } | |
350 | ||
f8e20a9f SF |
351 | static int dsa_slave_port_attr_get(struct net_device *dev, |
352 | struct switchdev_attr *attr) | |
b73adef6 FF |
353 | { |
354 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 355 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 356 | |
f8e20a9f | 357 | switch (attr->id) { |
1f868398 | 358 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
359 | attr->u.ppid.id_len = sizeof(ds->index); |
360 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f | 361 | break; |
c9e2105e AS |
362 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS_SUPPORT: |
363 | attr->u.brport_flags_support = 0; | |
364 | break; | |
f8e20a9f SF |
365 | default: |
366 | return -EOPNOTSUPP; | |
367 | } | |
b73adef6 FF |
368 | |
369 | return 0; | |
370 | } | |
371 | ||
4fa7b718 VD |
372 | static inline netdev_tx_t dsa_slave_netpoll_send_skb(struct net_device *dev, |
373 | struct sk_buff *skb) | |
04ff53f9 FF |
374 | { |
375 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4fa7b718 VD |
376 | struct dsa_slave_priv *p = netdev_priv(dev); |
377 | ||
04ff53f9 FF |
378 | if (p->netpoll) |
379 | netpoll_send_skb(p->netpoll, skb); | |
380 | #else | |
381 | BUG(); | |
382 | #endif | |
383 | return NETDEV_TX_OK; | |
384 | } | |
385 | ||
3e8a72d1 FF |
386 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
387 | { | |
388 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 389 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 390 | struct sk_buff *nskb; |
3e8a72d1 | 391 | |
5f6b4e14 FF |
392 | s = this_cpu_ptr(p->stats64); |
393 | u64_stats_update_begin(&s->syncp); | |
394 | s->tx_packets++; | |
395 | s->tx_bytes += skb->len; | |
396 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 397 | |
fe47d563 VD |
398 | /* Transmit function may have to reallocate the original SKB, |
399 | * in which case it must have freed it. Only free it here on error. | |
400 | */ | |
4ed70ce9 | 401 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
402 | if (!nskb) { |
403 | kfree_skb(skb); | |
4ed70ce9 | 404 | return NETDEV_TX_OK; |
fe47d563 | 405 | } |
5aed85ce | 406 | |
04ff53f9 FF |
407 | /* SKB for netpoll still need to be mangled with the protocol-specific |
408 | * tag to be successfully transmitted | |
409 | */ | |
410 | if (unlikely(netpoll_tx_running(dev))) | |
4fa7b718 | 411 | return dsa_slave_netpoll_send_skb(dev, nskb); |
04ff53f9 | 412 | |
4ed70ce9 FF |
413 | /* Queue the SKB for transmission on the parent interface, but |
414 | * do not modify its EtherType | |
415 | */ | |
6d3c8c0d | 416 | nskb->dev = dsa_master_netdev(p); |
4ed70ce9 | 417 | dev_queue_xmit(nskb); |
5aed85ce FF |
418 | |
419 | return NETDEV_TX_OK; | |
420 | } | |
421 | ||
91da11f8 | 422 | /* ethtool operations *******************************************************/ |
91da11f8 | 423 | |
91da11f8 LB |
424 | static void dsa_slave_get_drvinfo(struct net_device *dev, |
425 | struct ethtool_drvinfo *drvinfo) | |
426 | { | |
7826d43f | 427 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
428 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
429 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
430 | } |
431 | ||
3d762a0f GR |
432 | static int dsa_slave_get_regs_len(struct net_device *dev) |
433 | { | |
434 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 435 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 436 | |
9d490b4e | 437 | if (ds->ops->get_regs_len) |
afdcf151 | 438 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
439 | |
440 | return -EOPNOTSUPP; | |
441 | } | |
442 | ||
443 | static void | |
444 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
445 | { | |
446 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 447 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 448 | |
9d490b4e | 449 | if (ds->ops->get_regs) |
afdcf151 | 450 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
451 | } |
452 | ||
91da11f8 LB |
453 | static u32 dsa_slave_get_link(struct net_device *dev) |
454 | { | |
0115dcd1 | 455 | if (!dev->phydev) |
f4344e0a | 456 | return -ENODEV; |
91da11f8 | 457 | |
0115dcd1 | 458 | genphy_update_link(dev->phydev); |
f4344e0a | 459 | |
0115dcd1 | 460 | return dev->phydev->link; |
91da11f8 LB |
461 | } |
462 | ||
6793abb4 GR |
463 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
464 | { | |
465 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 466 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 467 | |
0e576044 | 468 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 469 | return ds->cd->eeprom_len; |
6793abb4 | 470 | |
9d490b4e VD |
471 | if (ds->ops->get_eeprom_len) |
472 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
473 | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
478 | struct ethtool_eeprom *eeprom, u8 *data) | |
479 | { | |
480 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 481 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 482 | |
9d490b4e VD |
483 | if (ds->ops->get_eeprom) |
484 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
485 | |
486 | return -EOPNOTSUPP; | |
487 | } | |
488 | ||
489 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
490 | struct ethtool_eeprom *eeprom, u8 *data) | |
491 | { | |
492 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 493 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 494 | |
9d490b4e VD |
495 | if (ds->ops->set_eeprom) |
496 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
497 | |
498 | return -EOPNOTSUPP; | |
499 | } | |
500 | ||
91da11f8 LB |
501 | static void dsa_slave_get_strings(struct net_device *dev, |
502 | uint32_t stringset, uint8_t *data) | |
503 | { | |
504 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 505 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
506 | |
507 | if (stringset == ETH_SS_STATS) { | |
508 | int len = ETH_GSTRING_LEN; | |
509 | ||
510 | strncpy(data, "tx_packets", len); | |
511 | strncpy(data + len, "tx_bytes", len); | |
512 | strncpy(data + 2 * len, "rx_packets", len); | |
513 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 514 | if (ds->ops->get_strings) |
afdcf151 | 515 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
516 | } |
517 | } | |
518 | ||
519 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, | |
520 | struct ethtool_stats *stats, | |
521 | uint64_t *data) | |
522 | { | |
523 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 524 | struct dsa_switch *ds = p->dp->ds; |
5f6b4e14 | 525 | struct pcpu_sw_netstats *s; |
f613ed66 | 526 | unsigned int start; |
5f6b4e14 FF |
527 | int i; |
528 | ||
529 | for_each_possible_cpu(i) { | |
530 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
531 | ||
532 | s = per_cpu_ptr(p->stats64, i); | |
533 | do { | |
534 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
535 | tx_packets = s->tx_packets; | |
536 | tx_bytes = s->tx_bytes; | |
537 | rx_packets = s->rx_packets; | |
538 | rx_bytes = s->rx_bytes; | |
539 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
540 | data[0] += tx_packets; | |
541 | data[1] += tx_bytes; | |
542 | data[2] += rx_packets; | |
543 | data[3] += rx_bytes; | |
544 | } | |
9d490b4e | 545 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 546 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
547 | } |
548 | ||
549 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
550 | { | |
551 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 552 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
553 | |
554 | if (sset == ETH_SS_STATS) { | |
555 | int count; | |
556 | ||
557 | count = 4; | |
9d490b4e VD |
558 | if (ds->ops->get_sset_count) |
559 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
560 | |
561 | return count; | |
562 | } | |
563 | ||
564 | return -EOPNOTSUPP; | |
565 | } | |
566 | ||
19e57c4e FF |
567 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
568 | { | |
569 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 570 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 571 | |
9d490b4e | 572 | if (ds->ops->get_wol) |
afdcf151 | 573 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
574 | } |
575 | ||
576 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
577 | { | |
578 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 579 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
580 | int ret = -EOPNOTSUPP; |
581 | ||
9d490b4e | 582 | if (ds->ops->set_wol) |
afdcf151 | 583 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
584 | |
585 | return ret; | |
586 | } | |
587 | ||
7905288f FF |
588 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
589 | { | |
590 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 591 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
592 | int ret; |
593 | ||
7b9cc738 | 594 | /* Port's PHY and MAC both need to be EEE capable */ |
0115dcd1 | 595 | if (!dev->phydev) |
7b9cc738 VD |
596 | return -ENODEV; |
597 | ||
08f50061 | 598 | if (!ds->ops->set_mac_eee) |
7905288f FF |
599 | return -EOPNOTSUPP; |
600 | ||
08f50061 | 601 | ret = ds->ops->set_mac_eee(ds, p->dp->index, e); |
7905288f FF |
602 | if (ret) |
603 | return ret; | |
604 | ||
c48f7eb3 | 605 | if (e->eee_enabled) { |
0115dcd1 | 606 | ret = phy_init_eee(dev->phydev, 0); |
c48f7eb3 VD |
607 | if (ret) |
608 | return ret; | |
609 | } | |
610 | ||
0115dcd1 | 611 | return phy_ethtool_set_eee(dev->phydev, e); |
7905288f FF |
612 | } |
613 | ||
614 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
615 | { | |
616 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 617 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
618 | int ret; |
619 | ||
7b9cc738 | 620 | /* Port's PHY and MAC both need to be EEE capable */ |
0115dcd1 | 621 | if (!dev->phydev) |
7b9cc738 VD |
622 | return -ENODEV; |
623 | ||
08f50061 | 624 | if (!ds->ops->get_mac_eee) |
7905288f FF |
625 | return -EOPNOTSUPP; |
626 | ||
08f50061 | 627 | ret = ds->ops->get_mac_eee(ds, p->dp->index, e); |
7905288f FF |
628 | if (ret) |
629 | return ret; | |
630 | ||
0115dcd1 | 631 | return phy_ethtool_get_eee(dev->phydev, e); |
7905288f FF |
632 | } |
633 | ||
04ff53f9 FF |
634 | #ifdef CONFIG_NET_POLL_CONTROLLER |
635 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
636 | struct netpoll_info *ni) | |
637 | { | |
638 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 639 | struct net_device *master = dsa_master_netdev(p); |
04ff53f9 FF |
640 | struct netpoll *netpoll; |
641 | int err = 0; | |
642 | ||
643 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
644 | if (!netpoll) | |
645 | return -ENOMEM; | |
646 | ||
647 | err = __netpoll_setup(netpoll, master); | |
648 | if (err) { | |
649 | kfree(netpoll); | |
650 | goto out; | |
651 | } | |
652 | ||
653 | p->netpoll = netpoll; | |
654 | out: | |
655 | return err; | |
656 | } | |
657 | ||
658 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
659 | { | |
660 | struct dsa_slave_priv *p = netdev_priv(dev); | |
661 | struct netpoll *netpoll = p->netpoll; | |
662 | ||
663 | if (!netpoll) | |
664 | return; | |
665 | ||
666 | p->netpoll = NULL; | |
667 | ||
668 | __netpoll_free_async(netpoll); | |
669 | } | |
670 | ||
671 | static void dsa_slave_poll_controller(struct net_device *dev) | |
672 | { | |
673 | } | |
674 | #endif | |
675 | ||
44bb765c FF |
676 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
677 | char *name, size_t len) | |
678 | { | |
679 | struct dsa_slave_priv *p = netdev_priv(dev); | |
680 | ||
afdcf151 | 681 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 682 | return -EINVAL; |
3a543ef4 FF |
683 | |
684 | return 0; | |
685 | } | |
686 | ||
f50f2127 | 687 | static struct dsa_mall_tc_entry * |
4fa7b718 | 688 | dsa_slave_mall_tc_entry_find(struct net_device *dev, unsigned long cookie) |
f50f2127 | 689 | { |
4fa7b718 | 690 | struct dsa_slave_priv *p = netdev_priv(dev); |
f50f2127 FF |
691 | struct dsa_mall_tc_entry *mall_tc_entry; |
692 | ||
693 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
694 | if (mall_tc_entry->cookie == cookie) | |
695 | return mall_tc_entry; | |
696 | ||
697 | return NULL; | |
698 | } | |
699 | ||
700 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
f50f2127 FF |
701 | struct tc_cls_matchall_offload *cls, |
702 | bool ingress) | |
703 | { | |
704 | struct dsa_slave_priv *p = netdev_priv(dev); | |
705 | struct dsa_mall_tc_entry *mall_tc_entry; | |
5fd9fc4e | 706 | __be16 protocol = cls->common.protocol; |
f50f2127 FF |
707 | struct dsa_switch *ds = p->dp->ds; |
708 | struct net *net = dev_net(dev); | |
709 | struct dsa_slave_priv *to_p; | |
710 | struct net_device *to_dev; | |
711 | const struct tc_action *a; | |
712 | int err = -EOPNOTSUPP; | |
713 | LIST_HEAD(actions); | |
714 | int ifindex; | |
715 | ||
716 | if (!ds->ops->port_mirror_add) | |
717 | return err; | |
718 | ||
3bcc0cec | 719 | if (!tcf_exts_has_one_action(cls->exts)) |
f50f2127 FF |
720 | return err; |
721 | ||
722 | tcf_exts_to_list(cls->exts, &actions); | |
723 | a = list_first_entry(&actions, struct tc_action, list); | |
724 | ||
725 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
726 | struct dsa_mall_mirror_tc_entry *mirror; | |
727 | ||
728 | ifindex = tcf_mirred_ifindex(a); | |
729 | to_dev = __dev_get_by_index(net, ifindex); | |
730 | if (!to_dev) | |
731 | return -EINVAL; | |
732 | ||
733 | if (!dsa_slave_dev_check(to_dev)) | |
734 | return -EOPNOTSUPP; | |
735 | ||
736 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
737 | if (!mall_tc_entry) | |
738 | return -ENOMEM; | |
739 | ||
740 | mall_tc_entry->cookie = cls->cookie; | |
741 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
742 | mirror = &mall_tc_entry->mirror; | |
743 | ||
744 | to_p = netdev_priv(to_dev); | |
745 | ||
746 | mirror->to_local_port = to_p->dp->index; | |
747 | mirror->ingress = ingress; | |
748 | ||
749 | err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, | |
750 | ingress); | |
751 | if (err) { | |
752 | kfree(mall_tc_entry); | |
753 | return err; | |
754 | } | |
755 | ||
756 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
757 | } | |
758 | ||
759 | return 0; | |
760 | } | |
761 | ||
762 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
763 | struct tc_cls_matchall_offload *cls) | |
764 | { | |
765 | struct dsa_slave_priv *p = netdev_priv(dev); | |
766 | struct dsa_mall_tc_entry *mall_tc_entry; | |
767 | struct dsa_switch *ds = p->dp->ds; | |
768 | ||
769 | if (!ds->ops->port_mirror_del) | |
770 | return; | |
771 | ||
4fa7b718 | 772 | mall_tc_entry = dsa_slave_mall_tc_entry_find(dev, cls->cookie); |
f50f2127 FF |
773 | if (!mall_tc_entry) |
774 | return; | |
775 | ||
776 | list_del(&mall_tc_entry->list); | |
777 | ||
778 | switch (mall_tc_entry->type) { | |
779 | case DSA_PORT_MALL_MIRROR: | |
780 | ds->ops->port_mirror_del(ds, p->dp->index, | |
781 | &mall_tc_entry->mirror); | |
782 | break; | |
783 | default: | |
784 | WARN_ON(1); | |
785 | } | |
786 | ||
787 | kfree(mall_tc_entry); | |
788 | } | |
789 | ||
3fbae382 | 790 | static int dsa_slave_setup_tc_cls_matchall(struct net_device *dev, |
3fbae382 | 791 | struct tc_cls_matchall_offload *cls) |
f50f2127 | 792 | { |
a2e8da93 JP |
793 | bool ingress; |
794 | ||
795 | if (is_classid_clsact_ingress(cls->common.classid)) | |
796 | ingress = true; | |
797 | else if (is_classid_clsact_egress(cls->common.classid)) | |
798 | ingress = false; | |
799 | else | |
800 | return -EOPNOTSUPP; | |
a5fcf8a6 | 801 | |
5fd9fc4e | 802 | if (cls->common.chain_index) |
a5fcf8a6 | 803 | return -EOPNOTSUPP; |
f50f2127 | 804 | |
3fbae382 JP |
805 | switch (cls->command) { |
806 | case TC_CLSMATCHALL_REPLACE: | |
5fd9fc4e | 807 | return dsa_slave_add_cls_matchall(dev, cls, ingress); |
3fbae382 JP |
808 | case TC_CLSMATCHALL_DESTROY: |
809 | dsa_slave_del_cls_matchall(dev, cls); | |
810 | return 0; | |
811 | default: | |
812 | return -EOPNOTSUPP; | |
813 | } | |
814 | } | |
815 | ||
816 | static int dsa_slave_setup_tc(struct net_device *dev, enum tc_setup_type type, | |
de4784ca | 817 | void *type_data) |
3fbae382 | 818 | { |
2572ac53 | 819 | switch (type) { |
ade9b658 | 820 | case TC_SETUP_CLSMATCHALL: |
de4784ca | 821 | return dsa_slave_setup_tc_cls_matchall(dev, type_data); |
f50f2127 | 822 | default: |
a5fcf8a6 | 823 | return -EOPNOTSUPP; |
f50f2127 | 824 | } |
f50f2127 FF |
825 | } |
826 | ||
f613ed66 FF |
827 | static void dsa_slave_get_stats64(struct net_device *dev, |
828 | struct rtnl_link_stats64 *stats) | |
829 | { | |
830 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 831 | struct pcpu_sw_netstats *s; |
f613ed66 | 832 | unsigned int start; |
5f6b4e14 | 833 | int i; |
f613ed66 FF |
834 | |
835 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
836 | for_each_possible_cpu(i) { |
837 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
838 | ||
839 | s = per_cpu_ptr(p->stats64, i); | |
840 | do { | |
841 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
842 | tx_packets = s->tx_packets; | |
843 | tx_bytes = s->tx_bytes; | |
844 | rx_packets = s->rx_packets; | |
845 | rx_bytes = s->rx_bytes; | |
846 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
847 | ||
848 | stats->tx_packets += tx_packets; | |
849 | stats->tx_bytes += tx_bytes; | |
850 | stats->rx_packets += rx_packets; | |
851 | stats->rx_bytes += rx_bytes; | |
852 | } | |
f613ed66 FF |
853 | } |
854 | ||
bf9f2648 FF |
855 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
856 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
857 | { | |
858 | struct dsa_slave_priv *p = netdev_priv(dev); | |
859 | struct dsa_switch *ds = p->dp->ds; | |
860 | ||
861 | if (!ds->ops->get_rxnfc) | |
862 | return -EOPNOTSUPP; | |
863 | ||
864 | return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); | |
865 | } | |
866 | ||
867 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
868 | struct ethtool_rxnfc *nfc) | |
869 | { | |
870 | struct dsa_slave_priv *p = netdev_priv(dev); | |
871 | struct dsa_switch *ds = p->dp->ds; | |
872 | ||
873 | if (!ds->ops->set_rxnfc) | |
874 | return -EOPNOTSUPP; | |
875 | ||
876 | return ds->ops->set_rxnfc(ds, p->dp->index, nfc); | |
877 | } | |
878 | ||
91da11f8 | 879 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 880 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
881 | .get_regs_len = dsa_slave_get_regs_len, |
882 | .get_regs = dsa_slave_get_regs, | |
69b2c162 | 883 | .nway_reset = phy_ethtool_nway_reset, |
91da11f8 | 884 | .get_link = dsa_slave_get_link, |
6793abb4 GR |
885 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
886 | .get_eeprom = dsa_slave_get_eeprom, | |
887 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
888 | .get_strings = dsa_slave_get_strings, |
889 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
890 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
891 | .set_wol = dsa_slave_set_wol, |
892 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
893 | .set_eee = dsa_slave_set_eee, |
894 | .get_eee = dsa_slave_get_eee, | |
771df31a | 895 | .get_link_ksettings = phy_ethtool_get_link_ksettings, |
aa62a8ca | 896 | .set_link_ksettings = phy_ethtool_set_link_ksettings, |
bf9f2648 FF |
897 | .get_rxnfc = dsa_slave_get_rxnfc, |
898 | .set_rxnfc = dsa_slave_set_rxnfc, | |
91da11f8 LB |
899 | }; |
900 | ||
3e8a72d1 | 901 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
902 | .ndo_open = dsa_slave_open, |
903 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 904 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
905 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
906 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 907 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
37b8da1a AS |
908 | .ndo_fdb_add = dsa_legacy_fdb_add, |
909 | .ndo_fdb_del = dsa_legacy_fdb_del, | |
2bedde1a | 910 | .ndo_fdb_dump = dsa_slave_fdb_dump, |
d442ad4a | 911 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 912 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
913 | #ifdef CONFIG_NET_POLL_CONTROLLER |
914 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
915 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
916 | .ndo_poll_controller = dsa_slave_poll_controller, | |
917 | #endif | |
44bb765c | 918 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 919 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 920 | .ndo_get_stats64 = dsa_slave_get_stats64, |
98237d43 SF |
921 | }; |
922 | ||
9d47c0a2 | 923 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 924 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 925 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
926 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
927 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
d442ad4a | 928 | }; |
91da11f8 | 929 | |
f37db85d FF |
930 | static struct device_type dsa_type = { |
931 | .name = "dsa", | |
932 | }; | |
933 | ||
0d8bcdd3 FF |
934 | static void dsa_slave_adjust_link(struct net_device *dev) |
935 | { | |
936 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 937 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
938 | unsigned int status_changed = 0; |
939 | ||
0115dcd1 | 940 | if (p->old_link != dev->phydev->link) { |
0d8bcdd3 | 941 | status_changed = 1; |
0115dcd1 | 942 | p->old_link = dev->phydev->link; |
0d8bcdd3 FF |
943 | } |
944 | ||
0115dcd1 | 945 | if (p->old_duplex != dev->phydev->duplex) { |
0d8bcdd3 | 946 | status_changed = 1; |
0115dcd1 | 947 | p->old_duplex = dev->phydev->duplex; |
0d8bcdd3 FF |
948 | } |
949 | ||
0115dcd1 | 950 | if (p->old_pause != dev->phydev->pause) { |
0d8bcdd3 | 951 | status_changed = 1; |
0115dcd1 | 952 | p->old_pause = dev->phydev->pause; |
0d8bcdd3 FF |
953 | } |
954 | ||
9d490b4e | 955 | if (ds->ops->adjust_link && status_changed) |
0115dcd1 | 956 | ds->ops->adjust_link(ds, p->dp->index, dev->phydev); |
ec9436ba | 957 | |
0d8bcdd3 | 958 | if (status_changed) |
0115dcd1 | 959 | phy_print_status(dev->phydev); |
0d8bcdd3 FF |
960 | } |
961 | ||
ce31b31c FF |
962 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
963 | struct fixed_phy_status *status) | |
964 | { | |
b71be352 AL |
965 | struct dsa_slave_priv *p; |
966 | struct dsa_switch *ds; | |
967 | ||
968 | if (dev) { | |
969 | p = netdev_priv(dev); | |
afdcf151 | 970 | ds = p->dp->ds; |
9d490b4e | 971 | if (ds->ops->fixed_link_update) |
afdcf151 | 972 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 973 | } |
ce31b31c FF |
974 | |
975 | return 0; | |
976 | } | |
977 | ||
91da11f8 | 978 | /* slave device setup *******************************************************/ |
4fa7b718 | 979 | static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr) |
c305c165 | 980 | { |
4fa7b718 | 981 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
afdcf151 | 982 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 983 | |
0115dcd1 VD |
984 | slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr); |
985 | if (!slave_dev->phydev) { | |
d25b8e74 | 986 | netdev_err(slave_dev, "no phy at %d\n", addr); |
c305c165 | 987 | return -ENODEV; |
d25b8e74 | 988 | } |
c305c165 FF |
989 | |
990 | /* Use already configured phy mode */ | |
211c504a | 991 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
0115dcd1 VD |
992 | p->phy_interface = slave_dev->phydev->interface; |
993 | ||
994 | return phy_connect_direct(slave_dev, slave_dev->phydev, | |
995 | dsa_slave_adjust_link, p->phy_interface); | |
c305c165 FF |
996 | } |
997 | ||
4fa7b718 | 998 | static int dsa_slave_phy_setup(struct net_device *slave_dev) |
0d8bcdd3 | 999 | { |
4fa7b718 | 1000 | struct dsa_slave_priv *p = netdev_priv(slave_dev); |
afdcf151 | 1001 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1002 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1003 | bool phy_is_fixed = false; |
6819563e | 1004 | u32 phy_flags = 0; |
19334920 | 1005 | int mode, ret; |
0d8bcdd3 | 1006 | |
afdcf151 | 1007 | port_dn = p->dp->dn; |
19334920 GR |
1008 | mode = of_get_phy_mode(port_dn); |
1009 | if (mode < 0) | |
1010 | mode = PHY_INTERFACE_MODE_NA; | |
1011 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1012 | |
1013 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1014 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1015 | /* In the case of a fixed PHY, the DT node associated |
1016 | * to the fixed PHY is the Port DT node | |
1017 | */ | |
1018 | ret = of_phy_register_fixed_link(port_dn); | |
1019 | if (ret) { | |
d25b8e74 | 1020 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1021 | return ret; |
0d8bcdd3 | 1022 | } |
ce31b31c | 1023 | phy_is_fixed = true; |
0d8f3c67 | 1024 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1025 | } |
1026 | ||
9d490b4e | 1027 | if (ds->ops->get_phy_flags) |
afdcf151 | 1028 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1029 | |
cd28a1a9 | 1030 | if (phy_dn) { |
d25b8e74 RK |
1031 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1032 | ||
cd28a1a9 FF |
1033 | /* If this PHY address is part of phys_mii_mask, which means |
1034 | * that we need to divert reads and writes to/from it, then we | |
1035 | * want to bind this device using the slave MII bus created by | |
1036 | * DSA to make that happen. | |
1037 | */ | |
d25b8e74 RK |
1038 | if (!phy_is_fixed && phy_id >= 0 && |
1039 | (ds->phys_mii_mask & (1 << phy_id))) { | |
4fa7b718 | 1040 | ret = dsa_slave_phy_connect(slave_dev, phy_id); |
d25b8e74 RK |
1041 | if (ret) { |
1042 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1043 | of_node_put(phy_dn); |
cd28a1a9 | 1044 | return ret; |
d25b8e74 | 1045 | } |
cd28a1a9 | 1046 | } else { |
0115dcd1 VD |
1047 | slave_dev->phydev = of_phy_connect(slave_dev, phy_dn, |
1048 | dsa_slave_adjust_link, | |
1049 | phy_flags, | |
1050 | p->phy_interface); | |
cd28a1a9 | 1051 | } |
0d8f3c67 JH |
1052 | |
1053 | of_node_put(phy_dn); | |
cd28a1a9 | 1054 | } |
0d8bcdd3 | 1055 | |
0115dcd1 VD |
1056 | if (slave_dev->phydev && phy_is_fixed) |
1057 | fixed_phy_set_link_update(slave_dev->phydev, | |
1058 | dsa_slave_fixed_link_update); | |
ce31b31c | 1059 | |
0d8bcdd3 FF |
1060 | /* We could not connect to a designated PHY, so use the switch internal |
1061 | * MDIO bus instead | |
1062 | */ | |
0115dcd1 | 1063 | if (!slave_dev->phydev) { |
4fa7b718 | 1064 | ret = dsa_slave_phy_connect(slave_dev, p->dp->index); |
d25b8e74 | 1065 | if (ret) { |
afdcf151 VD |
1066 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1067 | p->dp->index, ret); | |
881eadab JH |
1068 | if (phy_is_fixed) |
1069 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1070 | return ret; |
d25b8e74 | 1071 | } |
b31f65fb | 1072 | } |
9697f1cd | 1073 | |
0115dcd1 | 1074 | phy_attached_info(slave_dev->phydev); |
2220943a | 1075 | |
9697f1cd | 1076 | return 0; |
0d8bcdd3 FF |
1077 | } |
1078 | ||
448b4482 AL |
1079 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1080 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1081 | struct netdev_queue *txq, | |
1082 | void *_unused) | |
1083 | { | |
1084 | lockdep_set_class(&txq->_xmit_lock, | |
1085 | &dsa_slave_netdev_xmit_lock_key); | |
1086 | } | |
1087 | ||
24462549 FF |
1088 | int dsa_slave_suspend(struct net_device *slave_dev) |
1089 | { | |
1090 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1091 | ||
f154be24 FF |
1092 | netif_device_detach(slave_dev); |
1093 | ||
0115dcd1 VD |
1094 | if (slave_dev->phydev) { |
1095 | phy_stop(slave_dev->phydev); | |
24462549 FF |
1096 | p->old_pause = -1; |
1097 | p->old_link = -1; | |
1098 | p->old_duplex = -1; | |
0115dcd1 | 1099 | phy_suspend(slave_dev->phydev); |
24462549 FF |
1100 | } |
1101 | ||
1102 | return 0; | |
1103 | } | |
1104 | ||
1105 | int dsa_slave_resume(struct net_device *slave_dev) | |
1106 | { | |
24462549 FF |
1107 | netif_device_attach(slave_dev); |
1108 | ||
0115dcd1 VD |
1109 | if (slave_dev->phydev) { |
1110 | phy_resume(slave_dev->phydev); | |
1111 | phy_start(slave_dev->phydev); | |
24462549 FF |
1112 | } |
1113 | ||
1114 | return 0; | |
1115 | } | |
1116 | ||
6158eaa7 VD |
1117 | static void dsa_slave_notify(struct net_device *dev, unsigned long val) |
1118 | { | |
1119 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1120 | struct net_device *master = dsa_master_netdev(p); | |
1121 | struct dsa_port *dp = p->dp; | |
1122 | struct dsa_notifier_register_info rinfo = { | |
1123 | .switch_number = dp->ds->index, | |
1124 | .port_number = dp->index, | |
1125 | .master = master, | |
1126 | .info.dev = dev, | |
1127 | }; | |
1128 | ||
1129 | call_dsa_notifiers(val, dev, &rinfo.info); | |
1130 | } | |
1131 | ||
4cfbf09c | 1132 | int dsa_slave_create(struct dsa_port *port, const char *name) |
91da11f8 | 1133 | { |
a5b930e0 VD |
1134 | struct dsa_port *cpu_dp = port->cpu_dp; |
1135 | struct net_device *master = cpu_dp->netdev; | |
4cfbf09c | 1136 | struct dsa_switch *ds = port->ds; |
91da11f8 LB |
1137 | struct net_device *slave_dev; |
1138 | struct dsa_slave_priv *p; | |
1139 | int ret; | |
1140 | ||
55199df6 FF |
1141 | if (!ds->num_tx_queues) |
1142 | ds->num_tx_queues = 1; | |
1143 | ||
1144 | slave_dev = alloc_netdev_mqs(sizeof(struct dsa_slave_priv), name, | |
1145 | NET_NAME_UNKNOWN, ether_setup, | |
1146 | ds->num_tx_queues, 1); | |
91da11f8 | 1147 | if (slave_dev == NULL) |
d87d6f44 | 1148 | return -ENOMEM; |
91da11f8 | 1149 | |
f50f2127 FF |
1150 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1151 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1152 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1153 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1154 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1155 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1156 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1157 | slave_dev->min_mtu = 0; |
1158 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1159 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1160 | |
448b4482 AL |
1161 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1162 | NULL); | |
1163 | ||
4cfbf09c VD |
1164 | SET_NETDEV_DEV(slave_dev, port->ds->dev); |
1165 | slave_dev->dev.of_node = port->dn; | |
5075314e AD |
1166 | slave_dev->vlan_features = master->vlan_features; |
1167 | ||
1168 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1169 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1170 | if (!p->stats64) { | |
1171 | free_netdev(slave_dev); | |
1172 | return -ENOMEM; | |
1173 | } | |
4cfbf09c | 1174 | p->dp = port; |
f50f2127 | 1175 | INIT_LIST_HEAD(&p->mall_tc_list); |
15240248 | 1176 | p->xmit = cpu_dp->tag_ops->xmit; |
d442ad4a | 1177 | |
0d8bcdd3 FF |
1178 | p->old_pause = -1; |
1179 | p->old_link = -1; | |
1180 | p->old_duplex = -1; | |
1181 | ||
4cfbf09c | 1182 | port->netdev = slave_dev; |
91da11f8 LB |
1183 | |
1184 | netif_carrier_off(slave_dev); | |
1185 | ||
4fa7b718 | 1186 | ret = dsa_slave_phy_setup(slave_dev); |
0071f56e AL |
1187 | if (ret) { |
1188 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
e804441c FF |
1189 | goto out_free; |
1190 | } | |
1191 | ||
6158eaa7 | 1192 | dsa_slave_notify(slave_dev, DSA_PORT_REGISTER); |
60724d4b | 1193 | |
e804441c FF |
1194 | ret = register_netdev(slave_dev); |
1195 | if (ret) { | |
1196 | netdev_err(master, "error %d registering interface %s\n", | |
1197 | ret, slave_dev->name); | |
1198 | goto out_phy; | |
0071f56e AL |
1199 | } |
1200 | ||
d87d6f44 | 1201 | return 0; |
e804441c FF |
1202 | |
1203 | out_phy: | |
53954cf8 | 1204 | phy_disconnect(slave_dev->phydev); |
e804441c FF |
1205 | if (of_phy_is_fixed_link(p->dp->dn)) |
1206 | of_phy_deregister_fixed_link(p->dp->dn); | |
1207 | out_free: | |
1208 | free_percpu(p->stats64); | |
1209 | free_netdev(slave_dev); | |
1210 | port->netdev = NULL; | |
1211 | return ret; | |
91da11f8 | 1212 | } |
b73adef6 | 1213 | |
cda5c15b NA |
1214 | void dsa_slave_destroy(struct net_device *slave_dev) |
1215 | { | |
1216 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1217 | struct device_node *port_dn; |
1218 | ||
afdcf151 | 1219 | port_dn = p->dp->dn; |
cda5c15b NA |
1220 | |
1221 | netif_carrier_off(slave_dev); | |
0115dcd1 VD |
1222 | if (slave_dev->phydev) { |
1223 | phy_disconnect(slave_dev->phydev); | |
881eadab JH |
1224 | |
1225 | if (of_phy_is_fixed_link(port_dn)) | |
1226 | of_phy_deregister_fixed_link(port_dn); | |
1227 | } | |
6158eaa7 | 1228 | dsa_slave_notify(slave_dev, DSA_PORT_UNREGISTER); |
cda5c15b | 1229 | unregister_netdev(slave_dev); |
5f6b4e14 | 1230 | free_percpu(p->stats64); |
cda5c15b NA |
1231 | free_netdev(slave_dev); |
1232 | } | |
1233 | ||
b73adef6 FF |
1234 | static bool dsa_slave_dev_check(struct net_device *dev) |
1235 | { | |
1236 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1237 | } | |
1238 | ||
8e92ab3a VD |
1239 | static int dsa_slave_changeupper(struct net_device *dev, |
1240 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1241 | { |
17d7802b VD |
1242 | struct dsa_slave_priv *p = netdev_priv(dev); |
1243 | struct dsa_port *dp = p->dp; | |
8e92ab3a | 1244 | int err = NOTIFY_DONE; |
b73adef6 | 1245 | |
8e92ab3a VD |
1246 | if (netif_is_bridge_master(info->upper_dev)) { |
1247 | if (info->linking) { | |
17d7802b | 1248 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1249 | err = notifier_from_errno(err); |
1250 | } else { | |
17d7802b | 1251 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1252 | err = NOTIFY_OK; |
6debb68a | 1253 | } |
6debb68a | 1254 | } |
b73adef6 | 1255 | |
8e92ab3a | 1256 | return err; |
6debb68a | 1257 | } |
b73adef6 | 1258 | |
88e4f0ca VD |
1259 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1260 | unsigned long event, void *ptr) | |
6debb68a VD |
1261 | { |
1262 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1263 | ||
53bade8a | 1264 | if (!dsa_slave_dev_check(dev)) |
8e92ab3a VD |
1265 | return NOTIFY_DONE; |
1266 | ||
1267 | if (event == NETDEV_CHANGEUPPER) | |
1268 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1269 | |
b73adef6 FF |
1270 | return NOTIFY_DONE; |
1271 | } | |
88e4f0ca | 1272 | |
c9eb3e0f AS |
1273 | struct dsa_switchdev_event_work { |
1274 | struct work_struct work; | |
1275 | struct switchdev_notifier_fdb_info fdb_info; | |
1276 | struct net_device *dev; | |
1277 | unsigned long event; | |
1278 | }; | |
1279 | ||
1280 | static void dsa_slave_switchdev_event_work(struct work_struct *work) | |
1281 | { | |
1282 | struct dsa_switchdev_event_work *switchdev_work = | |
1283 | container_of(work, struct dsa_switchdev_event_work, work); | |
1284 | struct net_device *dev = switchdev_work->dev; | |
1285 | struct switchdev_notifier_fdb_info *fdb_info; | |
1286 | struct dsa_slave_priv *p = netdev_priv(dev); | |
1287 | int err; | |
1288 | ||
1289 | rtnl_lock(); | |
1290 | switch (switchdev_work->event) { | |
1291 | case SWITCHDEV_FDB_ADD_TO_DEVICE: | |
1292 | fdb_info = &switchdev_work->fdb_info; | |
1293 | err = dsa_port_fdb_add(p->dp, fdb_info->addr, fdb_info->vid); | |
1294 | if (err) { | |
1295 | netdev_dbg(dev, "fdb add failed err=%d\n", err); | |
1296 | break; | |
1297 | } | |
1298 | call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, | |
1299 | &fdb_info->info); | |
1300 | break; | |
1301 | ||
1302 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1303 | fdb_info = &switchdev_work->fdb_info; | |
1304 | err = dsa_port_fdb_del(p->dp, fdb_info->addr, fdb_info->vid); | |
1305 | if (err) { | |
1306 | netdev_dbg(dev, "fdb del failed err=%d\n", err); | |
1307 | dev_close(dev); | |
1308 | } | |
1309 | break; | |
1310 | } | |
1311 | rtnl_unlock(); | |
1312 | ||
1313 | kfree(switchdev_work->fdb_info.addr); | |
1314 | kfree(switchdev_work); | |
1315 | dev_put(dev); | |
1316 | } | |
1317 | ||
1318 | static int | |
1319 | dsa_slave_switchdev_fdb_work_init(struct dsa_switchdev_event_work * | |
1320 | switchdev_work, | |
1321 | const struct switchdev_notifier_fdb_info * | |
1322 | fdb_info) | |
1323 | { | |
1324 | memcpy(&switchdev_work->fdb_info, fdb_info, | |
1325 | sizeof(switchdev_work->fdb_info)); | |
1326 | switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); | |
1327 | if (!switchdev_work->fdb_info.addr) | |
1328 | return -ENOMEM; | |
1329 | ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, | |
1330 | fdb_info->addr); | |
1331 | return 0; | |
1332 | } | |
1333 | ||
1334 | /* Called under rcu_read_lock() */ | |
1335 | static int dsa_slave_switchdev_event(struct notifier_block *unused, | |
1336 | unsigned long event, void *ptr) | |
1337 | { | |
1338 | struct net_device *dev = switchdev_notifier_info_to_dev(ptr); | |
1339 | struct dsa_switchdev_event_work *switchdev_work; | |
1340 | ||
1341 | if (!dsa_slave_dev_check(dev)) | |
1342 | return NOTIFY_DONE; | |
1343 | ||
1344 | switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); | |
1345 | if (!switchdev_work) | |
1346 | return NOTIFY_BAD; | |
1347 | ||
1348 | INIT_WORK(&switchdev_work->work, | |
1349 | dsa_slave_switchdev_event_work); | |
1350 | switchdev_work->dev = dev; | |
1351 | switchdev_work->event = event; | |
1352 | ||
1353 | switch (event) { | |
1354 | case SWITCHDEV_FDB_ADD_TO_DEVICE: /* fall through */ | |
1355 | case SWITCHDEV_FDB_DEL_TO_DEVICE: | |
1356 | if (dsa_slave_switchdev_fdb_work_init(switchdev_work, | |
1357 | ptr)) | |
1358 | goto err_fdb_work_init; | |
1359 | dev_hold(dev); | |
1360 | break; | |
1361 | default: | |
1362 | kfree(switchdev_work); | |
1363 | return NOTIFY_DONE; | |
1364 | } | |
1365 | ||
1366 | dsa_schedule_work(&switchdev_work->work); | |
1367 | return NOTIFY_OK; | |
1368 | ||
1369 | err_fdb_work_init: | |
1370 | kfree(switchdev_work); | |
1371 | return NOTIFY_BAD; | |
1372 | } | |
1373 | ||
88e4f0ca | 1374 | static struct notifier_block dsa_slave_nb __read_mostly = { |
c9eb3e0f AS |
1375 | .notifier_call = dsa_slave_netdevice_event, |
1376 | }; | |
1377 | ||
1378 | static struct notifier_block dsa_slave_switchdev_notifier = { | |
1379 | .notifier_call = dsa_slave_switchdev_event, | |
88e4f0ca VD |
1380 | }; |
1381 | ||
1382 | int dsa_slave_register_notifier(void) | |
1383 | { | |
c9eb3e0f AS |
1384 | int err; |
1385 | ||
1386 | err = register_netdevice_notifier(&dsa_slave_nb); | |
1387 | if (err) | |
1388 | return err; | |
1389 | ||
1390 | err = register_switchdev_notifier(&dsa_slave_switchdev_notifier); | |
1391 | if (err) | |
1392 | goto err_switchdev_nb; | |
1393 | ||
1394 | return 0; | |
1395 | ||
1396 | err_switchdev_nb: | |
1397 | unregister_netdevice_notifier(&dsa_slave_nb); | |
1398 | return err; | |
88e4f0ca VD |
1399 | } |
1400 | ||
1401 | void dsa_slave_unregister_notifier(void) | |
1402 | { | |
1403 | int err; | |
1404 | ||
c9eb3e0f AS |
1405 | err = unregister_switchdev_notifier(&dsa_slave_switchdev_notifier); |
1406 | if (err) | |
1407 | pr_err("DSA: failed to unregister switchdev notifier (%d)\n", err); | |
1408 | ||
88e4f0ca VD |
1409 | err = unregister_netdevice_notifier(&dsa_slave_nb); |
1410 | if (err) | |
1411 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1412 | } |