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 | ||
df02c6ff | 136 | dev_mc_unsync(master, dev); |
a748ee24 | 137 | dev_uc_unsync(master, dev); |
df02c6ff LB |
138 | if (dev->flags & IFF_ALLMULTI) |
139 | dev_set_allmulti(master, -1); | |
140 | if (dev->flags & IFF_PROMISC) | |
141 | dev_set_promiscuity(master, -1); | |
142 | ||
8feedbb4 | 143 | if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) |
a748ee24 | 144 | dev_uc_del(master, dev->dev_addr); |
df02c6ff | 145 | |
9d490b4e | 146 | if (ds->ops->port_disable) |
afdcf151 | 147 | ds->ops->port_disable(ds, p->dp->index, p->phy); |
b2f2af21 | 148 | |
fd364541 | 149 | dsa_port_set_state_now(p->dp, BR_STATE_DISABLED); |
b73adef6 | 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 | ||
202 | static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
203 | { | |
204 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 LB |
205 | |
206 | if (p->phy != NULL) | |
28b04113 | 207 | return phy_mii_ioctl(p->phy, ifr, cmd); |
91da11f8 LB |
208 | |
209 | return -EOPNOTSUPP; | |
210 | } | |
211 | ||
35636062 | 212 | static int dsa_slave_port_attr_set(struct net_device *dev, |
f7fadf30 | 213 | const struct switchdev_attr *attr, |
7ea6eb3f | 214 | struct switchdev_trans *trans) |
35636062 | 215 | { |
fd364541 VD |
216 | struct dsa_slave_priv *p = netdev_priv(dev); |
217 | struct dsa_port *dp = p->dp; | |
b8d866ac | 218 | int ret; |
35636062 SF |
219 | |
220 | switch (attr->id) { | |
1f868398 | 221 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
fd364541 | 222 | ret = dsa_port_set_state(dp, attr->u.stp_state, trans); |
35636062 | 223 | break; |
fb2dabad | 224 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
c02c4175 VD |
225 | ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering, |
226 | trans); | |
fb2dabad | 227 | break; |
34a79f63 | 228 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
072bb190 | 229 | ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans); |
34a79f63 | 230 | break; |
35636062 SF |
231 | default: |
232 | ret = -EOPNOTSUPP; | |
233 | break; | |
234 | } | |
235 | ||
236 | return ret; | |
237 | } | |
238 | ||
ba14d9eb | 239 | static int dsa_slave_port_obj_add(struct net_device *dev, |
648b4a99 | 240 | const struct switchdev_obj *obj, |
7ea6eb3f | 241 | struct switchdev_trans *trans) |
ba14d9eb | 242 | { |
3fdb023b VD |
243 | struct dsa_slave_priv *p = netdev_priv(dev); |
244 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
245 | int err; |
246 | ||
247 | /* For the prepare phase, ensure the full set of changes is feasable in | |
248 | * one go in order to signal a failure properly. If an operation is not | |
249 | * supported, return -EOPNOTSUPP. | |
250 | */ | |
251 | ||
9e8f4a54 | 252 | switch (obj->id) { |
57d80838 | 253 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
3fdb023b | 254 | err = dsa_port_fdb_add(dp, SWITCHDEV_OBJ_PORT_FDB(obj), trans); |
ba14d9eb | 255 | break; |
8df30255 | 256 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 257 | err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans); |
8df30255 | 258 | break; |
57d80838 | 259 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 VD |
260 | err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), |
261 | trans); | |
11149536 | 262 | break; |
ba14d9eb VD |
263 | default: |
264 | err = -EOPNOTSUPP; | |
265 | break; | |
266 | } | |
267 | ||
268 | return err; | |
269 | } | |
270 | ||
271 | static int dsa_slave_port_obj_del(struct net_device *dev, | |
648b4a99 | 272 | const struct switchdev_obj *obj) |
ba14d9eb | 273 | { |
3fdb023b VD |
274 | struct dsa_slave_priv *p = netdev_priv(dev); |
275 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
276 | int err; |
277 | ||
9e8f4a54 | 278 | switch (obj->id) { |
57d80838 | 279 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
3fdb023b | 280 | err = dsa_port_fdb_del(dp, SWITCHDEV_OBJ_PORT_FDB(obj)); |
ba14d9eb | 281 | break; |
8df30255 | 282 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 283 | err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj)); |
8df30255 | 284 | break; |
57d80838 | 285 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 286 | err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj)); |
11149536 | 287 | break; |
ba14d9eb VD |
288 | default: |
289 | err = -EOPNOTSUPP; | |
290 | break; | |
291 | } | |
292 | ||
293 | return err; | |
294 | } | |
295 | ||
296 | static int dsa_slave_port_obj_dump(struct net_device *dev, | |
648b4a99 JP |
297 | struct switchdev_obj *obj, |
298 | switchdev_obj_dump_cb_t *cb) | |
ba14d9eb | 299 | { |
3fdb023b VD |
300 | struct dsa_slave_priv *p = netdev_priv(dev); |
301 | struct dsa_port *dp = p->dp; | |
ba14d9eb VD |
302 | int err; |
303 | ||
9e8f4a54 | 304 | switch (obj->id) { |
57d80838 | 305 | case SWITCHDEV_OBJ_ID_PORT_FDB: |
3fdb023b | 306 | err = dsa_port_fdb_dump(dp, SWITCHDEV_OBJ_PORT_FDB(obj), cb); |
ba14d9eb | 307 | break; |
8df30255 | 308 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
bcebb976 | 309 | err = dsa_port_mdb_dump(dp, SWITCHDEV_OBJ_PORT_MDB(obj), cb); |
8df30255 | 310 | break; |
57d80838 | 311 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
01676d12 | 312 | err = dsa_port_vlan_dump(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), cb); |
11149536 | 313 | break; |
ba14d9eb VD |
314 | default: |
315 | err = -EOPNOTSUPP; | |
316 | break; | |
317 | } | |
318 | ||
319 | return err; | |
320 | } | |
321 | ||
f8e20a9f SF |
322 | static int dsa_slave_port_attr_get(struct net_device *dev, |
323 | struct switchdev_attr *attr) | |
b73adef6 FF |
324 | { |
325 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 326 | struct dsa_switch *ds = p->dp->ds; |
b73adef6 | 327 | |
f8e20a9f | 328 | switch (attr->id) { |
1f868398 | 329 | case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: |
42275bd8 SF |
330 | attr->u.ppid.id_len = sizeof(ds->index); |
331 | memcpy(&attr->u.ppid.id, &ds->index, attr->u.ppid.id_len); | |
f8e20a9f SF |
332 | break; |
333 | default: | |
334 | return -EOPNOTSUPP; | |
335 | } | |
b73adef6 FF |
336 | |
337 | return 0; | |
338 | } | |
339 | ||
04ff53f9 FF |
340 | static inline netdev_tx_t dsa_netpoll_send_skb(struct dsa_slave_priv *p, |
341 | struct sk_buff *skb) | |
342 | { | |
343 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
344 | if (p->netpoll) | |
345 | netpoll_send_skb(p->netpoll, skb); | |
346 | #else | |
347 | BUG(); | |
348 | #endif | |
349 | return NETDEV_TX_OK; | |
350 | } | |
351 | ||
3e8a72d1 FF |
352 | static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev) |
353 | { | |
354 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 355 | struct pcpu_sw_netstats *s; |
4ed70ce9 | 356 | struct sk_buff *nskb; |
3e8a72d1 | 357 | |
5f6b4e14 FF |
358 | s = this_cpu_ptr(p->stats64); |
359 | u64_stats_update_begin(&s->syncp); | |
360 | s->tx_packets++; | |
361 | s->tx_bytes += skb->len; | |
362 | u64_stats_update_end(&s->syncp); | |
3e8a72d1 | 363 | |
fe47d563 VD |
364 | /* Transmit function may have to reallocate the original SKB, |
365 | * in which case it must have freed it. Only free it here on error. | |
366 | */ | |
4ed70ce9 | 367 | nskb = p->xmit(skb, dev); |
fe47d563 VD |
368 | if (!nskb) { |
369 | kfree_skb(skb); | |
4ed70ce9 | 370 | return NETDEV_TX_OK; |
fe47d563 | 371 | } |
5aed85ce | 372 | |
04ff53f9 FF |
373 | /* SKB for netpoll still need to be mangled with the protocol-specific |
374 | * tag to be successfully transmitted | |
375 | */ | |
376 | if (unlikely(netpoll_tx_running(dev))) | |
377 | return dsa_netpoll_send_skb(p, nskb); | |
378 | ||
4ed70ce9 FF |
379 | /* Queue the SKB for transmission on the parent interface, but |
380 | * do not modify its EtherType | |
381 | */ | |
6d3c8c0d | 382 | nskb->dev = dsa_master_netdev(p); |
4ed70ce9 | 383 | dev_queue_xmit(nskb); |
5aed85ce FF |
384 | |
385 | return NETDEV_TX_OK; | |
386 | } | |
387 | ||
91da11f8 LB |
388 | /* ethtool operations *******************************************************/ |
389 | static int | |
bb10bb3e PR |
390 | dsa_slave_get_link_ksettings(struct net_device *dev, |
391 | struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
392 | { |
393 | struct dsa_slave_priv *p = netdev_priv(dev); | |
91da11f8 | 394 | |
5514174f | 395 | if (!p->phy) |
396 | return -EOPNOTSUPP; | |
91da11f8 | 397 | |
5514174f | 398 | phy_ethtool_ksettings_get(p->phy, cmd); |
399 | ||
400 | return 0; | |
91da11f8 LB |
401 | } |
402 | ||
403 | static int | |
bb10bb3e PR |
404 | dsa_slave_set_link_ksettings(struct net_device *dev, |
405 | const struct ethtool_link_ksettings *cmd) | |
91da11f8 LB |
406 | { |
407 | struct dsa_slave_priv *p = netdev_priv(dev); | |
408 | ||
409 | if (p->phy != NULL) | |
bb10bb3e | 410 | return phy_ethtool_ksettings_set(p->phy, cmd); |
91da11f8 LB |
411 | |
412 | return -EOPNOTSUPP; | |
413 | } | |
414 | ||
415 | static void dsa_slave_get_drvinfo(struct net_device *dev, | |
416 | struct ethtool_drvinfo *drvinfo) | |
417 | { | |
7826d43f | 418 | strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver)); |
7826d43f JP |
419 | strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version)); |
420 | strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); | |
91da11f8 LB |
421 | } |
422 | ||
3d762a0f GR |
423 | static int dsa_slave_get_regs_len(struct net_device *dev) |
424 | { | |
425 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 426 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 427 | |
9d490b4e | 428 | if (ds->ops->get_regs_len) |
afdcf151 | 429 | return ds->ops->get_regs_len(ds, p->dp->index); |
3d762a0f GR |
430 | |
431 | return -EOPNOTSUPP; | |
432 | } | |
433 | ||
434 | static void | |
435 | dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) | |
436 | { | |
437 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 438 | struct dsa_switch *ds = p->dp->ds; |
3d762a0f | 439 | |
9d490b4e | 440 | if (ds->ops->get_regs) |
afdcf151 | 441 | ds->ops->get_regs(ds, p->dp->index, regs, _p); |
3d762a0f GR |
442 | } |
443 | ||
91da11f8 LB |
444 | static int dsa_slave_nway_reset(struct net_device *dev) |
445 | { | |
446 | struct dsa_slave_priv *p = netdev_priv(dev); | |
447 | ||
448 | if (p->phy != NULL) | |
449 | return genphy_restart_aneg(p->phy); | |
450 | ||
451 | return -EOPNOTSUPP; | |
452 | } | |
453 | ||
454 | static u32 dsa_slave_get_link(struct net_device *dev) | |
455 | { | |
456 | struct dsa_slave_priv *p = netdev_priv(dev); | |
457 | ||
458 | if (p->phy != NULL) { | |
459 | genphy_update_link(p->phy); | |
460 | return p->phy->link; | |
461 | } | |
462 | ||
463 | return -EOPNOTSUPP; | |
464 | } | |
465 | ||
6793abb4 GR |
466 | static int dsa_slave_get_eeprom_len(struct net_device *dev) |
467 | { | |
468 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 469 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 470 | |
0e576044 | 471 | if (ds->cd && ds->cd->eeprom_len) |
ff04955c | 472 | return ds->cd->eeprom_len; |
6793abb4 | 473 | |
9d490b4e VD |
474 | if (ds->ops->get_eeprom_len) |
475 | return ds->ops->get_eeprom_len(ds); | |
6793abb4 GR |
476 | |
477 | return 0; | |
478 | } | |
479 | ||
480 | static int dsa_slave_get_eeprom(struct net_device *dev, | |
481 | struct ethtool_eeprom *eeprom, u8 *data) | |
482 | { | |
483 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 484 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 485 | |
9d490b4e VD |
486 | if (ds->ops->get_eeprom) |
487 | return ds->ops->get_eeprom(ds, eeprom, data); | |
6793abb4 GR |
488 | |
489 | return -EOPNOTSUPP; | |
490 | } | |
491 | ||
492 | static int dsa_slave_set_eeprom(struct net_device *dev, | |
493 | struct ethtool_eeprom *eeprom, u8 *data) | |
494 | { | |
495 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 496 | struct dsa_switch *ds = p->dp->ds; |
6793abb4 | 497 | |
9d490b4e VD |
498 | if (ds->ops->set_eeprom) |
499 | return ds->ops->set_eeprom(ds, eeprom, data); | |
6793abb4 GR |
500 | |
501 | return -EOPNOTSUPP; | |
502 | } | |
503 | ||
91da11f8 LB |
504 | static void dsa_slave_get_strings(struct net_device *dev, |
505 | uint32_t stringset, uint8_t *data) | |
506 | { | |
507 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 508 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
509 | |
510 | if (stringset == ETH_SS_STATS) { | |
511 | int len = ETH_GSTRING_LEN; | |
512 | ||
513 | strncpy(data, "tx_packets", len); | |
514 | strncpy(data + len, "tx_bytes", len); | |
515 | strncpy(data + 2 * len, "rx_packets", len); | |
516 | strncpy(data + 3 * len, "rx_bytes", len); | |
9d490b4e | 517 | if (ds->ops->get_strings) |
afdcf151 | 518 | ds->ops->get_strings(ds, p->dp->index, data + 4 * len); |
91da11f8 LB |
519 | } |
520 | } | |
521 | ||
badf3ada FF |
522 | static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev, |
523 | struct ethtool_stats *stats, | |
524 | uint64_t *data) | |
525 | { | |
526 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
3cc9f257 FF |
527 | struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |
528 | struct dsa_switch *ds = cpu_dp->ds; | |
529 | s8 cpu_port = cpu_dp->index; | |
badf3ada FF |
530 | int count = 0; |
531 | ||
3cc9f257 FF |
532 | if (cpu_dp->ethtool_ops.get_sset_count) { |
533 | count = cpu_dp->ethtool_ops.get_sset_count(dev, ETH_SS_STATS); | |
534 | cpu_dp->ethtool_ops.get_ethtool_stats(dev, stats, data); | |
badf3ada FF |
535 | } |
536 | ||
9d490b4e VD |
537 | if (ds->ops->get_ethtool_stats) |
538 | ds->ops->get_ethtool_stats(ds, cpu_port, data + count); | |
badf3ada FF |
539 | } |
540 | ||
541 | static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset) | |
542 | { | |
543 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
3cc9f257 FF |
544 | struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |
545 | struct dsa_switch *ds = cpu_dp->ds; | |
badf3ada FF |
546 | int count = 0; |
547 | ||
3cc9f257 FF |
548 | if (cpu_dp->ethtool_ops.get_sset_count) |
549 | count += cpu_dp->ethtool_ops.get_sset_count(dev, sset); | |
badf3ada | 550 | |
9d490b4e VD |
551 | if (sset == ETH_SS_STATS && ds->ops->get_sset_count) |
552 | count += ds->ops->get_sset_count(ds); | |
badf3ada FF |
553 | |
554 | return count; | |
555 | } | |
556 | ||
557 | static void dsa_cpu_port_get_strings(struct net_device *dev, | |
558 | uint32_t stringset, uint8_t *data) | |
559 | { | |
560 | struct dsa_switch_tree *dst = dev->dsa_ptr; | |
3cc9f257 FF |
561 | struct dsa_port *cpu_dp = dsa_get_cpu_port(dst); |
562 | struct dsa_switch *ds = cpu_dp->ds; | |
563 | s8 cpu_port = cpu_dp->index; | |
badf3ada FF |
564 | int len = ETH_GSTRING_LEN; |
565 | int mcount = 0, count; | |
566 | unsigned int i; | |
567 | uint8_t pfx[4]; | |
568 | uint8_t *ndata; | |
569 | ||
570 | snprintf(pfx, sizeof(pfx), "p%.2d", cpu_port); | |
571 | /* We do not want to be NULL-terminated, since this is a prefix */ | |
572 | pfx[sizeof(pfx) - 1] = '_'; | |
573 | ||
3cc9f257 FF |
574 | if (cpu_dp->ethtool_ops.get_sset_count) { |
575 | mcount = cpu_dp->ethtool_ops.get_sset_count(dev, ETH_SS_STATS); | |
576 | cpu_dp->ethtool_ops.get_strings(dev, stringset, data); | |
badf3ada FF |
577 | } |
578 | ||
9d490b4e | 579 | if (stringset == ETH_SS_STATS && ds->ops->get_strings) { |
badf3ada FF |
580 | ndata = data + mcount * len; |
581 | /* This function copies ETH_GSTRINGS_LEN bytes, we will mangle | |
582 | * the output after to prepend our CPU port prefix we | |
583 | * constructed earlier | |
584 | */ | |
9d490b4e VD |
585 | ds->ops->get_strings(ds, cpu_port, ndata); |
586 | count = ds->ops->get_sset_count(ds); | |
badf3ada FF |
587 | for (i = 0; i < count; i++) { |
588 | memmove(ndata + (i * len + sizeof(pfx)), | |
589 | ndata + i * len, len - sizeof(pfx)); | |
590 | memcpy(ndata + i * len, pfx, sizeof(pfx)); | |
591 | } | |
592 | } | |
593 | } | |
594 | ||
91da11f8 LB |
595 | static void dsa_slave_get_ethtool_stats(struct net_device *dev, |
596 | struct ethtool_stats *stats, | |
597 | uint64_t *data) | |
598 | { | |
599 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 600 | struct dsa_switch *ds = p->dp->ds; |
5f6b4e14 | 601 | struct pcpu_sw_netstats *s; |
f613ed66 | 602 | unsigned int start; |
5f6b4e14 FF |
603 | int i; |
604 | ||
605 | for_each_possible_cpu(i) { | |
606 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
607 | ||
608 | s = per_cpu_ptr(p->stats64, i); | |
609 | do { | |
610 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
611 | tx_packets = s->tx_packets; | |
612 | tx_bytes = s->tx_bytes; | |
613 | rx_packets = s->rx_packets; | |
614 | rx_bytes = s->rx_bytes; | |
615 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
616 | data[0] += tx_packets; | |
617 | data[1] += tx_bytes; | |
618 | data[2] += rx_packets; | |
619 | data[3] += rx_bytes; | |
620 | } | |
9d490b4e | 621 | if (ds->ops->get_ethtool_stats) |
afdcf151 | 622 | ds->ops->get_ethtool_stats(ds, p->dp->index, data + 4); |
91da11f8 LB |
623 | } |
624 | ||
625 | static int dsa_slave_get_sset_count(struct net_device *dev, int sset) | |
626 | { | |
627 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 628 | struct dsa_switch *ds = p->dp->ds; |
91da11f8 LB |
629 | |
630 | if (sset == ETH_SS_STATS) { | |
631 | int count; | |
632 | ||
633 | count = 4; | |
9d490b4e VD |
634 | if (ds->ops->get_sset_count) |
635 | count += ds->ops->get_sset_count(ds); | |
91da11f8 LB |
636 | |
637 | return count; | |
638 | } | |
639 | ||
640 | return -EOPNOTSUPP; | |
641 | } | |
642 | ||
19e57c4e FF |
643 | static void dsa_slave_get_wol(struct net_device *dev, struct ethtool_wolinfo *w) |
644 | { | |
645 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 646 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e | 647 | |
9d490b4e | 648 | if (ds->ops->get_wol) |
afdcf151 | 649 | ds->ops->get_wol(ds, p->dp->index, w); |
19e57c4e FF |
650 | } |
651 | ||
652 | static int dsa_slave_set_wol(struct net_device *dev, struct ethtool_wolinfo *w) | |
653 | { | |
654 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 655 | struct dsa_switch *ds = p->dp->ds; |
19e57c4e FF |
656 | int ret = -EOPNOTSUPP; |
657 | ||
9d490b4e | 658 | if (ds->ops->set_wol) |
afdcf151 | 659 | ret = ds->ops->set_wol(ds, p->dp->index, w); |
19e57c4e FF |
660 | |
661 | return ret; | |
662 | } | |
663 | ||
7905288f FF |
664 | static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e) |
665 | { | |
666 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 667 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
668 | int ret; |
669 | ||
7b9cc738 VD |
670 | /* Port's PHY and MAC both need to be EEE capable */ |
671 | if (!p->phy) | |
672 | return -ENODEV; | |
673 | ||
08f50061 | 674 | if (!ds->ops->set_mac_eee) |
7905288f FF |
675 | return -EOPNOTSUPP; |
676 | ||
08f50061 | 677 | ret = ds->ops->set_mac_eee(ds, p->dp->index, e); |
7905288f FF |
678 | if (ret) |
679 | return ret; | |
680 | ||
c48f7eb3 VD |
681 | if (e->eee_enabled) { |
682 | ret = phy_init_eee(p->phy, 0); | |
683 | if (ret) | |
684 | return ret; | |
685 | } | |
686 | ||
7b9cc738 | 687 | return phy_ethtool_set_eee(p->phy, e); |
7905288f FF |
688 | } |
689 | ||
690 | static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e) | |
691 | { | |
692 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 693 | struct dsa_switch *ds = p->dp->ds; |
7905288f FF |
694 | int ret; |
695 | ||
7b9cc738 VD |
696 | /* Port's PHY and MAC both need to be EEE capable */ |
697 | if (!p->phy) | |
698 | return -ENODEV; | |
699 | ||
08f50061 | 700 | if (!ds->ops->get_mac_eee) |
7905288f FF |
701 | return -EOPNOTSUPP; |
702 | ||
08f50061 | 703 | ret = ds->ops->get_mac_eee(ds, p->dp->index, e); |
7905288f FF |
704 | if (ret) |
705 | return ret; | |
706 | ||
7b9cc738 | 707 | return phy_ethtool_get_eee(p->phy, e); |
7905288f FF |
708 | } |
709 | ||
04ff53f9 FF |
710 | #ifdef CONFIG_NET_POLL_CONTROLLER |
711 | static int dsa_slave_netpoll_setup(struct net_device *dev, | |
712 | struct netpoll_info *ni) | |
713 | { | |
714 | struct dsa_slave_priv *p = netdev_priv(dev); | |
6d3c8c0d | 715 | struct net_device *master = dsa_master_netdev(p); |
04ff53f9 FF |
716 | struct netpoll *netpoll; |
717 | int err = 0; | |
718 | ||
719 | netpoll = kzalloc(sizeof(*netpoll), GFP_KERNEL); | |
720 | if (!netpoll) | |
721 | return -ENOMEM; | |
722 | ||
723 | err = __netpoll_setup(netpoll, master); | |
724 | if (err) { | |
725 | kfree(netpoll); | |
726 | goto out; | |
727 | } | |
728 | ||
729 | p->netpoll = netpoll; | |
730 | out: | |
731 | return err; | |
732 | } | |
733 | ||
734 | static void dsa_slave_netpoll_cleanup(struct net_device *dev) | |
735 | { | |
736 | struct dsa_slave_priv *p = netdev_priv(dev); | |
737 | struct netpoll *netpoll = p->netpoll; | |
738 | ||
739 | if (!netpoll) | |
740 | return; | |
741 | ||
742 | p->netpoll = NULL; | |
743 | ||
744 | __netpoll_free_async(netpoll); | |
745 | } | |
746 | ||
747 | static void dsa_slave_poll_controller(struct net_device *dev) | |
748 | { | |
749 | } | |
750 | #endif | |
751 | ||
44bb765c FF |
752 | static int dsa_slave_get_phys_port_name(struct net_device *dev, |
753 | char *name, size_t len) | |
754 | { | |
755 | struct dsa_slave_priv *p = netdev_priv(dev); | |
756 | ||
afdcf151 | 757 | if (snprintf(name, len, "p%d", p->dp->index) >= len) |
44bb765c | 758 | return -EINVAL; |
3a543ef4 FF |
759 | |
760 | return 0; | |
761 | } | |
762 | ||
f50f2127 FF |
763 | static struct dsa_mall_tc_entry * |
764 | dsa_slave_mall_tc_entry_find(struct dsa_slave_priv *p, | |
765 | unsigned long cookie) | |
766 | { | |
767 | struct dsa_mall_tc_entry *mall_tc_entry; | |
768 | ||
769 | list_for_each_entry(mall_tc_entry, &p->mall_tc_list, list) | |
770 | if (mall_tc_entry->cookie == cookie) | |
771 | return mall_tc_entry; | |
772 | ||
773 | return NULL; | |
774 | } | |
775 | ||
776 | static int dsa_slave_add_cls_matchall(struct net_device *dev, | |
777 | __be16 protocol, | |
778 | struct tc_cls_matchall_offload *cls, | |
779 | bool ingress) | |
780 | { | |
781 | struct dsa_slave_priv *p = netdev_priv(dev); | |
782 | struct dsa_mall_tc_entry *mall_tc_entry; | |
783 | struct dsa_switch *ds = p->dp->ds; | |
784 | struct net *net = dev_net(dev); | |
785 | struct dsa_slave_priv *to_p; | |
786 | struct net_device *to_dev; | |
787 | const struct tc_action *a; | |
788 | int err = -EOPNOTSUPP; | |
789 | LIST_HEAD(actions); | |
790 | int ifindex; | |
791 | ||
792 | if (!ds->ops->port_mirror_add) | |
793 | return err; | |
794 | ||
3bcc0cec | 795 | if (!tcf_exts_has_one_action(cls->exts)) |
f50f2127 FF |
796 | return err; |
797 | ||
798 | tcf_exts_to_list(cls->exts, &actions); | |
799 | a = list_first_entry(&actions, struct tc_action, list); | |
800 | ||
801 | if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { | |
802 | struct dsa_mall_mirror_tc_entry *mirror; | |
803 | ||
804 | ifindex = tcf_mirred_ifindex(a); | |
805 | to_dev = __dev_get_by_index(net, ifindex); | |
806 | if (!to_dev) | |
807 | return -EINVAL; | |
808 | ||
809 | if (!dsa_slave_dev_check(to_dev)) | |
810 | return -EOPNOTSUPP; | |
811 | ||
812 | mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); | |
813 | if (!mall_tc_entry) | |
814 | return -ENOMEM; | |
815 | ||
816 | mall_tc_entry->cookie = cls->cookie; | |
817 | mall_tc_entry->type = DSA_PORT_MALL_MIRROR; | |
818 | mirror = &mall_tc_entry->mirror; | |
819 | ||
820 | to_p = netdev_priv(to_dev); | |
821 | ||
822 | mirror->to_local_port = to_p->dp->index; | |
823 | mirror->ingress = ingress; | |
824 | ||
825 | err = ds->ops->port_mirror_add(ds, p->dp->index, mirror, | |
826 | ingress); | |
827 | if (err) { | |
828 | kfree(mall_tc_entry); | |
829 | return err; | |
830 | } | |
831 | ||
832 | list_add_tail(&mall_tc_entry->list, &p->mall_tc_list); | |
833 | } | |
834 | ||
835 | return 0; | |
836 | } | |
837 | ||
838 | static void dsa_slave_del_cls_matchall(struct net_device *dev, | |
839 | struct tc_cls_matchall_offload *cls) | |
840 | { | |
841 | struct dsa_slave_priv *p = netdev_priv(dev); | |
842 | struct dsa_mall_tc_entry *mall_tc_entry; | |
843 | struct dsa_switch *ds = p->dp->ds; | |
844 | ||
845 | if (!ds->ops->port_mirror_del) | |
846 | return; | |
847 | ||
848 | mall_tc_entry = dsa_slave_mall_tc_entry_find(p, cls->cookie); | |
849 | if (!mall_tc_entry) | |
850 | return; | |
851 | ||
852 | list_del(&mall_tc_entry->list); | |
853 | ||
854 | switch (mall_tc_entry->type) { | |
855 | case DSA_PORT_MALL_MIRROR: | |
856 | ds->ops->port_mirror_del(ds, p->dp->index, | |
857 | &mall_tc_entry->mirror); | |
858 | break; | |
859 | default: | |
860 | WARN_ON(1); | |
861 | } | |
862 | ||
863 | kfree(mall_tc_entry); | |
864 | } | |
865 | ||
866 | static int dsa_slave_setup_tc(struct net_device *dev, u32 handle, | |
a5fcf8a6 JP |
867 | u32 chain_index, __be16 protocol, |
868 | struct tc_to_netdev *tc) | |
f50f2127 FF |
869 | { |
870 | bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS); | |
a5fcf8a6 JP |
871 | |
872 | if (chain_index) | |
873 | return -EOPNOTSUPP; | |
f50f2127 FF |
874 | |
875 | switch (tc->type) { | |
876 | case TC_SETUP_MATCHALL: | |
877 | switch (tc->cls_mall->command) { | |
878 | case TC_CLSMATCHALL_REPLACE: | |
879 | return dsa_slave_add_cls_matchall(dev, protocol, | |
880 | tc->cls_mall, | |
881 | ingress); | |
882 | case TC_CLSMATCHALL_DESTROY: | |
883 | dsa_slave_del_cls_matchall(dev, tc->cls_mall); | |
884 | return 0; | |
885 | } | |
886 | default: | |
a5fcf8a6 | 887 | return -EOPNOTSUPP; |
f50f2127 | 888 | } |
f50f2127 FF |
889 | } |
890 | ||
f613ed66 FF |
891 | static void dsa_slave_get_stats64(struct net_device *dev, |
892 | struct rtnl_link_stats64 *stats) | |
893 | { | |
894 | struct dsa_slave_priv *p = netdev_priv(dev); | |
5f6b4e14 | 895 | struct pcpu_sw_netstats *s; |
f613ed66 | 896 | unsigned int start; |
5f6b4e14 | 897 | int i; |
f613ed66 FF |
898 | |
899 | netdev_stats_to_stats64(stats, &dev->stats); | |
5f6b4e14 FF |
900 | for_each_possible_cpu(i) { |
901 | u64 tx_packets, tx_bytes, rx_packets, rx_bytes; | |
902 | ||
903 | s = per_cpu_ptr(p->stats64, i); | |
904 | do { | |
905 | start = u64_stats_fetch_begin_irq(&s->syncp); | |
906 | tx_packets = s->tx_packets; | |
907 | tx_bytes = s->tx_bytes; | |
908 | rx_packets = s->rx_packets; | |
909 | rx_bytes = s->rx_bytes; | |
910 | } while (u64_stats_fetch_retry_irq(&s->syncp, start)); | |
911 | ||
912 | stats->tx_packets += tx_packets; | |
913 | stats->tx_bytes += tx_bytes; | |
914 | stats->rx_packets += rx_packets; | |
915 | stats->rx_bytes += rx_bytes; | |
916 | } | |
f613ed66 FF |
917 | } |
918 | ||
af42192c FF |
919 | void dsa_cpu_port_ethtool_init(struct ethtool_ops *ops) |
920 | { | |
921 | ops->get_sset_count = dsa_cpu_port_get_sset_count; | |
922 | ops->get_ethtool_stats = dsa_cpu_port_get_ethtool_stats; | |
923 | ops->get_strings = dsa_cpu_port_get_strings; | |
924 | } | |
925 | ||
bf9f2648 FF |
926 | static int dsa_slave_get_rxnfc(struct net_device *dev, |
927 | struct ethtool_rxnfc *nfc, u32 *rule_locs) | |
928 | { | |
929 | struct dsa_slave_priv *p = netdev_priv(dev); | |
930 | struct dsa_switch *ds = p->dp->ds; | |
931 | ||
932 | if (!ds->ops->get_rxnfc) | |
933 | return -EOPNOTSUPP; | |
934 | ||
935 | return ds->ops->get_rxnfc(ds, p->dp->index, nfc, rule_locs); | |
936 | } | |
937 | ||
938 | static int dsa_slave_set_rxnfc(struct net_device *dev, | |
939 | struct ethtool_rxnfc *nfc) | |
940 | { | |
941 | struct dsa_slave_priv *p = netdev_priv(dev); | |
942 | struct dsa_switch *ds = p->dp->ds; | |
943 | ||
944 | if (!ds->ops->set_rxnfc) | |
945 | return -EOPNOTSUPP; | |
946 | ||
947 | return ds->ops->set_rxnfc(ds, p->dp->index, nfc); | |
948 | } | |
949 | ||
91da11f8 | 950 | static const struct ethtool_ops dsa_slave_ethtool_ops = { |
91da11f8 | 951 | .get_drvinfo = dsa_slave_get_drvinfo, |
3d762a0f GR |
952 | .get_regs_len = dsa_slave_get_regs_len, |
953 | .get_regs = dsa_slave_get_regs, | |
91da11f8 LB |
954 | .nway_reset = dsa_slave_nway_reset, |
955 | .get_link = dsa_slave_get_link, | |
6793abb4 GR |
956 | .get_eeprom_len = dsa_slave_get_eeprom_len, |
957 | .get_eeprom = dsa_slave_get_eeprom, | |
958 | .set_eeprom = dsa_slave_set_eeprom, | |
91da11f8 LB |
959 | .get_strings = dsa_slave_get_strings, |
960 | .get_ethtool_stats = dsa_slave_get_ethtool_stats, | |
961 | .get_sset_count = dsa_slave_get_sset_count, | |
19e57c4e FF |
962 | .set_wol = dsa_slave_set_wol, |
963 | .get_wol = dsa_slave_get_wol, | |
7905288f FF |
964 | .set_eee = dsa_slave_set_eee, |
965 | .get_eee = dsa_slave_get_eee, | |
bb10bb3e PR |
966 | .get_link_ksettings = dsa_slave_get_link_ksettings, |
967 | .set_link_ksettings = dsa_slave_set_link_ksettings, | |
bf9f2648 FF |
968 | .get_rxnfc = dsa_slave_get_rxnfc, |
969 | .set_rxnfc = dsa_slave_set_rxnfc, | |
91da11f8 LB |
970 | }; |
971 | ||
3e8a72d1 | 972 | static const struct net_device_ops dsa_slave_netdev_ops = { |
d442ad4a SH |
973 | .ndo_open = dsa_slave_open, |
974 | .ndo_stop = dsa_slave_close, | |
3e8a72d1 | 975 | .ndo_start_xmit = dsa_slave_xmit, |
d442ad4a SH |
976 | .ndo_change_rx_flags = dsa_slave_change_rx_flags, |
977 | .ndo_set_rx_mode = dsa_slave_set_rx_mode, | |
d442ad4a | 978 | .ndo_set_mac_address = dsa_slave_set_mac_address, |
ba14d9eb VD |
979 | .ndo_fdb_add = switchdev_port_fdb_add, |
980 | .ndo_fdb_del = switchdev_port_fdb_del, | |
981 | .ndo_fdb_dump = switchdev_port_fdb_dump, | |
d442ad4a | 982 | .ndo_do_ioctl = dsa_slave_ioctl, |
abd2be00 | 983 | .ndo_get_iflink = dsa_slave_get_iflink, |
04ff53f9 FF |
984 | #ifdef CONFIG_NET_POLL_CONTROLLER |
985 | .ndo_netpoll_setup = dsa_slave_netpoll_setup, | |
986 | .ndo_netpoll_cleanup = dsa_slave_netpoll_cleanup, | |
987 | .ndo_poll_controller = dsa_slave_poll_controller, | |
988 | #endif | |
11149536 VD |
989 | .ndo_bridge_getlink = switchdev_port_bridge_getlink, |
990 | .ndo_bridge_setlink = switchdev_port_bridge_setlink, | |
991 | .ndo_bridge_dellink = switchdev_port_bridge_dellink, | |
44bb765c | 992 | .ndo_get_phys_port_name = dsa_slave_get_phys_port_name, |
f50f2127 | 993 | .ndo_setup_tc = dsa_slave_setup_tc, |
f613ed66 | 994 | .ndo_get_stats64 = dsa_slave_get_stats64, |
98237d43 SF |
995 | }; |
996 | ||
9d47c0a2 | 997 | static const struct switchdev_ops dsa_slave_switchdev_ops = { |
f8e20a9f | 998 | .switchdev_port_attr_get = dsa_slave_port_attr_get, |
35636062 | 999 | .switchdev_port_attr_set = dsa_slave_port_attr_set, |
ba14d9eb VD |
1000 | .switchdev_port_obj_add = dsa_slave_port_obj_add, |
1001 | .switchdev_port_obj_del = dsa_slave_port_obj_del, | |
1002 | .switchdev_port_obj_dump = dsa_slave_port_obj_dump, | |
d442ad4a | 1003 | }; |
91da11f8 | 1004 | |
f37db85d FF |
1005 | static struct device_type dsa_type = { |
1006 | .name = "dsa", | |
1007 | }; | |
1008 | ||
0d8bcdd3 FF |
1009 | static void dsa_slave_adjust_link(struct net_device *dev) |
1010 | { | |
1011 | struct dsa_slave_priv *p = netdev_priv(dev); | |
afdcf151 | 1012 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 FF |
1013 | unsigned int status_changed = 0; |
1014 | ||
1015 | if (p->old_link != p->phy->link) { | |
1016 | status_changed = 1; | |
1017 | p->old_link = p->phy->link; | |
1018 | } | |
1019 | ||
1020 | if (p->old_duplex != p->phy->duplex) { | |
1021 | status_changed = 1; | |
1022 | p->old_duplex = p->phy->duplex; | |
1023 | } | |
1024 | ||
1025 | if (p->old_pause != p->phy->pause) { | |
1026 | status_changed = 1; | |
1027 | p->old_pause = p->phy->pause; | |
1028 | } | |
1029 | ||
9d490b4e | 1030 | if (ds->ops->adjust_link && status_changed) |
afdcf151 | 1031 | ds->ops->adjust_link(ds, p->dp->index, p->phy); |
ec9436ba | 1032 | |
0d8bcdd3 FF |
1033 | if (status_changed) |
1034 | phy_print_status(p->phy); | |
1035 | } | |
1036 | ||
ce31b31c FF |
1037 | static int dsa_slave_fixed_link_update(struct net_device *dev, |
1038 | struct fixed_phy_status *status) | |
1039 | { | |
b71be352 AL |
1040 | struct dsa_slave_priv *p; |
1041 | struct dsa_switch *ds; | |
1042 | ||
1043 | if (dev) { | |
1044 | p = netdev_priv(dev); | |
afdcf151 | 1045 | ds = p->dp->ds; |
9d490b4e | 1046 | if (ds->ops->fixed_link_update) |
afdcf151 | 1047 | ds->ops->fixed_link_update(ds, p->dp->index, status); |
b71be352 | 1048 | } |
ce31b31c FF |
1049 | |
1050 | return 0; | |
1051 | } | |
1052 | ||
91da11f8 | 1053 | /* slave device setup *******************************************************/ |
c305c165 | 1054 | static int dsa_slave_phy_connect(struct dsa_slave_priv *p, |
cd28a1a9 FF |
1055 | struct net_device *slave_dev, |
1056 | int addr) | |
c305c165 | 1057 | { |
afdcf151 | 1058 | struct dsa_switch *ds = p->dp->ds; |
c305c165 | 1059 | |
7f854420 | 1060 | p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr); |
d25b8e74 RK |
1061 | if (!p->phy) { |
1062 | netdev_err(slave_dev, "no phy at %d\n", addr); | |
c305c165 | 1063 | return -ENODEV; |
d25b8e74 | 1064 | } |
c305c165 FF |
1065 | |
1066 | /* Use already configured phy mode */ | |
211c504a FF |
1067 | if (p->phy_interface == PHY_INTERFACE_MODE_NA) |
1068 | p->phy_interface = p->phy->interface; | |
4078b76c FF |
1069 | return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link, |
1070 | p->phy_interface); | |
c305c165 FF |
1071 | } |
1072 | ||
9697f1cd | 1073 | static int dsa_slave_phy_setup(struct dsa_slave_priv *p, |
0d8bcdd3 FF |
1074 | struct net_device *slave_dev) |
1075 | { | |
afdcf151 | 1076 | struct dsa_switch *ds = p->dp->ds; |
0d8bcdd3 | 1077 | struct device_node *phy_dn, *port_dn; |
ce31b31c | 1078 | bool phy_is_fixed = false; |
6819563e | 1079 | u32 phy_flags = 0; |
19334920 | 1080 | int mode, ret; |
0d8bcdd3 | 1081 | |
afdcf151 | 1082 | port_dn = p->dp->dn; |
19334920 GR |
1083 | mode = of_get_phy_mode(port_dn); |
1084 | if (mode < 0) | |
1085 | mode = PHY_INTERFACE_MODE_NA; | |
1086 | p->phy_interface = mode; | |
0d8bcdd3 FF |
1087 | |
1088 | phy_dn = of_parse_phandle(port_dn, "phy-handle", 0); | |
0d8f3c67 | 1089 | if (!phy_dn && of_phy_is_fixed_link(port_dn)) { |
0d8bcdd3 FF |
1090 | /* In the case of a fixed PHY, the DT node associated |
1091 | * to the fixed PHY is the Port DT node | |
1092 | */ | |
1093 | ret = of_phy_register_fixed_link(port_dn); | |
1094 | if (ret) { | |
d25b8e74 | 1095 | netdev_err(slave_dev, "failed to register fixed PHY: %d\n", ret); |
9697f1cd | 1096 | return ret; |
0d8bcdd3 | 1097 | } |
ce31b31c | 1098 | phy_is_fixed = true; |
0d8f3c67 | 1099 | phy_dn = of_node_get(port_dn); |
0d8bcdd3 FF |
1100 | } |
1101 | ||
9d490b4e | 1102 | if (ds->ops->get_phy_flags) |
afdcf151 | 1103 | phy_flags = ds->ops->get_phy_flags(ds, p->dp->index); |
6819563e | 1104 | |
cd28a1a9 | 1105 | if (phy_dn) { |
d25b8e74 RK |
1106 | int phy_id = of_mdio_parse_addr(&slave_dev->dev, phy_dn); |
1107 | ||
cd28a1a9 FF |
1108 | /* If this PHY address is part of phys_mii_mask, which means |
1109 | * that we need to divert reads and writes to/from it, then we | |
1110 | * want to bind this device using the slave MII bus created by | |
1111 | * DSA to make that happen. | |
1112 | */ | |
d25b8e74 RK |
1113 | if (!phy_is_fixed && phy_id >= 0 && |
1114 | (ds->phys_mii_mask & (1 << phy_id))) { | |
1115 | ret = dsa_slave_phy_connect(p, slave_dev, phy_id); | |
1116 | if (ret) { | |
1117 | netdev_err(slave_dev, "failed to connect to phy%d: %d\n", phy_id, ret); | |
0d8f3c67 | 1118 | of_node_put(phy_dn); |
cd28a1a9 | 1119 | return ret; |
d25b8e74 | 1120 | } |
cd28a1a9 FF |
1121 | } else { |
1122 | p->phy = of_phy_connect(slave_dev, phy_dn, | |
1123 | dsa_slave_adjust_link, | |
1124 | phy_flags, | |
1125 | p->phy_interface); | |
1126 | } | |
0d8f3c67 JH |
1127 | |
1128 | of_node_put(phy_dn); | |
cd28a1a9 | 1129 | } |
0d8bcdd3 | 1130 | |
ce31b31c FF |
1131 | if (p->phy && phy_is_fixed) |
1132 | fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update); | |
1133 | ||
0d8bcdd3 FF |
1134 | /* We could not connect to a designated PHY, so use the switch internal |
1135 | * MDIO bus instead | |
1136 | */ | |
b31f65fb | 1137 | if (!p->phy) { |
afdcf151 | 1138 | ret = dsa_slave_phy_connect(p, slave_dev, p->dp->index); |
d25b8e74 | 1139 | if (ret) { |
afdcf151 VD |
1140 | netdev_err(slave_dev, "failed to connect to port %d: %d\n", |
1141 | p->dp->index, ret); | |
881eadab JH |
1142 | if (phy_is_fixed) |
1143 | of_phy_deregister_fixed_link(port_dn); | |
c305c165 | 1144 | return ret; |
d25b8e74 | 1145 | } |
b31f65fb | 1146 | } |
9697f1cd | 1147 | |
2220943a AL |
1148 | phy_attached_info(p->phy); |
1149 | ||
9697f1cd | 1150 | return 0; |
0d8bcdd3 FF |
1151 | } |
1152 | ||
448b4482 AL |
1153 | static struct lock_class_key dsa_slave_netdev_xmit_lock_key; |
1154 | static void dsa_slave_set_lockdep_class_one(struct net_device *dev, | |
1155 | struct netdev_queue *txq, | |
1156 | void *_unused) | |
1157 | { | |
1158 | lockdep_set_class(&txq->_xmit_lock, | |
1159 | &dsa_slave_netdev_xmit_lock_key); | |
1160 | } | |
1161 | ||
24462549 FF |
1162 | int dsa_slave_suspend(struct net_device *slave_dev) |
1163 | { | |
1164 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1165 | ||
f154be24 FF |
1166 | netif_device_detach(slave_dev); |
1167 | ||
24462549 FF |
1168 | if (p->phy) { |
1169 | phy_stop(p->phy); | |
1170 | p->old_pause = -1; | |
1171 | p->old_link = -1; | |
1172 | p->old_duplex = -1; | |
1173 | phy_suspend(p->phy); | |
1174 | } | |
1175 | ||
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | int dsa_slave_resume(struct net_device *slave_dev) | |
1180 | { | |
1181 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
1182 | ||
1183 | netif_device_attach(slave_dev); | |
1184 | ||
1185 | if (p->phy) { | |
1186 | phy_resume(p->phy); | |
1187 | phy_start(p->phy); | |
1188 | } | |
1189 | ||
1190 | return 0; | |
1191 | } | |
1192 | ||
d87d6f44 | 1193 | int dsa_slave_create(struct dsa_switch *ds, struct device *parent, |
83c0afae | 1194 | int port, const char *name) |
91da11f8 | 1195 | { |
badf3ada | 1196 | struct dsa_switch_tree *dst = ds->dst; |
83c0afae | 1197 | struct net_device *master; |
91da11f8 LB |
1198 | struct net_device *slave_dev; |
1199 | struct dsa_slave_priv *p; | |
a29342e7 | 1200 | struct dsa_port *cpu_dp; |
91da11f8 LB |
1201 | int ret; |
1202 | ||
a29342e7 FF |
1203 | cpu_dp = ds->dst->cpu_dp; |
1204 | master = cpu_dp->netdev; | |
83c0afae | 1205 | |
c835a677 TG |
1206 | slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name, |
1207 | NET_NAME_UNKNOWN, ether_setup); | |
91da11f8 | 1208 | if (slave_dev == NULL) |
d87d6f44 | 1209 | return -ENOMEM; |
91da11f8 | 1210 | |
f50f2127 FF |
1211 | slave_dev->features = master->vlan_features | NETIF_F_HW_TC; |
1212 | slave_dev->hw_features |= NETIF_F_HW_TC; | |
7ad24ea4 | 1213 | slave_dev->ethtool_ops = &dsa_slave_ethtool_ops; |
2fcc8005 | 1214 | eth_hw_addr_inherit(slave_dev, master); |
0a5f107b | 1215 | slave_dev->priv_flags |= IFF_NO_QUEUE; |
3e8a72d1 | 1216 | slave_dev->netdev_ops = &dsa_slave_netdev_ops; |
9d47c0a2 | 1217 | slave_dev->switchdev_ops = &dsa_slave_switchdev_ops; |
8b1efc0f JW |
1218 | slave_dev->min_mtu = 0; |
1219 | slave_dev->max_mtu = ETH_MAX_MTU; | |
f37db85d | 1220 | SET_NETDEV_DEVTYPE(slave_dev, &dsa_type); |
d442ad4a | 1221 | |
448b4482 AL |
1222 | netdev_for_each_tx_queue(slave_dev, dsa_slave_set_lockdep_class_one, |
1223 | NULL); | |
1224 | ||
5075314e | 1225 | SET_NETDEV_DEV(slave_dev, parent); |
189b0d93 | 1226 | slave_dev->dev.of_node = ds->ports[port].dn; |
5075314e AD |
1227 | slave_dev->vlan_features = master->vlan_features; |
1228 | ||
1229 | p = netdev_priv(slave_dev); | |
5f6b4e14 FF |
1230 | p->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); |
1231 | if (!p->stats64) { | |
1232 | free_netdev(slave_dev); | |
1233 | return -ENOMEM; | |
1234 | } | |
afdcf151 | 1235 | p->dp = &ds->ports[port]; |
f50f2127 | 1236 | INIT_LIST_HEAD(&p->mall_tc_list); |
39a7f2a4 | 1237 | p->xmit = dst->tag_ops->xmit; |
d442ad4a | 1238 | |
0d8bcdd3 FF |
1239 | p->old_pause = -1; |
1240 | p->old_link = -1; | |
1241 | p->old_duplex = -1; | |
1242 | ||
c8b09808 | 1243 | ds->ports[port].netdev = slave_dev; |
91da11f8 LB |
1244 | ret = register_netdev(slave_dev); |
1245 | if (ret) { | |
a2ae6007 JP |
1246 | netdev_err(master, "error %d registering interface %s\n", |
1247 | ret, slave_dev->name); | |
c8b09808 | 1248 | ds->ports[port].netdev = NULL; |
5f6b4e14 | 1249 | free_percpu(p->stats64); |
91da11f8 | 1250 | free_netdev(slave_dev); |
d87d6f44 | 1251 | return ret; |
91da11f8 LB |
1252 | } |
1253 | ||
1254 | netif_carrier_off(slave_dev); | |
1255 | ||
0071f56e AL |
1256 | ret = dsa_slave_phy_setup(p, slave_dev); |
1257 | if (ret) { | |
1258 | netdev_err(master, "error %d setting up slave phy\n", ret); | |
73dcb556 | 1259 | unregister_netdev(slave_dev); |
5f6b4e14 | 1260 | free_percpu(p->stats64); |
0071f56e AL |
1261 | free_netdev(slave_dev); |
1262 | return ret; | |
1263 | } | |
1264 | ||
d87d6f44 | 1265 | return 0; |
91da11f8 | 1266 | } |
b73adef6 | 1267 | |
cda5c15b NA |
1268 | void dsa_slave_destroy(struct net_device *slave_dev) |
1269 | { | |
1270 | struct dsa_slave_priv *p = netdev_priv(slave_dev); | |
881eadab JH |
1271 | struct device_node *port_dn; |
1272 | ||
afdcf151 | 1273 | port_dn = p->dp->dn; |
cda5c15b NA |
1274 | |
1275 | netif_carrier_off(slave_dev); | |
881eadab | 1276 | if (p->phy) { |
cda5c15b | 1277 | phy_disconnect(p->phy); |
881eadab JH |
1278 | |
1279 | if (of_phy_is_fixed_link(port_dn)) | |
1280 | of_phy_deregister_fixed_link(port_dn); | |
1281 | } | |
cda5c15b | 1282 | unregister_netdev(slave_dev); |
5f6b4e14 | 1283 | free_percpu(p->stats64); |
cda5c15b NA |
1284 | free_netdev(slave_dev); |
1285 | } | |
1286 | ||
b73adef6 FF |
1287 | static bool dsa_slave_dev_check(struct net_device *dev) |
1288 | { | |
1289 | return dev->netdev_ops == &dsa_slave_netdev_ops; | |
1290 | } | |
1291 | ||
8e92ab3a VD |
1292 | static int dsa_slave_changeupper(struct net_device *dev, |
1293 | struct netdev_notifier_changeupper_info *info) | |
b73adef6 | 1294 | { |
17d7802b VD |
1295 | struct dsa_slave_priv *p = netdev_priv(dev); |
1296 | struct dsa_port *dp = p->dp; | |
8e92ab3a | 1297 | int err = NOTIFY_DONE; |
b73adef6 | 1298 | |
8e92ab3a VD |
1299 | if (netif_is_bridge_master(info->upper_dev)) { |
1300 | if (info->linking) { | |
17d7802b | 1301 | err = dsa_port_bridge_join(dp, info->upper_dev); |
8e92ab3a VD |
1302 | err = notifier_from_errno(err); |
1303 | } else { | |
17d7802b | 1304 | dsa_port_bridge_leave(dp, info->upper_dev); |
8e92ab3a | 1305 | err = NOTIFY_OK; |
6debb68a | 1306 | } |
6debb68a | 1307 | } |
b73adef6 | 1308 | |
8e92ab3a | 1309 | return err; |
6debb68a | 1310 | } |
b73adef6 | 1311 | |
88e4f0ca VD |
1312 | static int dsa_slave_netdevice_event(struct notifier_block *nb, |
1313 | unsigned long event, void *ptr) | |
6debb68a VD |
1314 | { |
1315 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); | |
1316 | ||
8e92ab3a VD |
1317 | if (dev->netdev_ops != &dsa_slave_netdev_ops) |
1318 | return NOTIFY_DONE; | |
1319 | ||
1320 | if (event == NETDEV_CHANGEUPPER) | |
1321 | return dsa_slave_changeupper(dev, ptr); | |
b73adef6 | 1322 | |
b73adef6 FF |
1323 | return NOTIFY_DONE; |
1324 | } | |
88e4f0ca VD |
1325 | |
1326 | static struct notifier_block dsa_slave_nb __read_mostly = { | |
1327 | .notifier_call = dsa_slave_netdevice_event, | |
1328 | }; | |
1329 | ||
1330 | int dsa_slave_register_notifier(void) | |
1331 | { | |
1332 | return register_netdevice_notifier(&dsa_slave_nb); | |
1333 | } | |
1334 | ||
1335 | void dsa_slave_unregister_notifier(void) | |
1336 | { | |
1337 | int err; | |
1338 | ||
1339 | err = unregister_netdevice_notifier(&dsa_slave_nb); | |
1340 | if (err) | |
1341 | pr_err("DSA: failed to unregister slave notifier (%d)\n", err); | |
1342 | } |