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Commit | Line | Data |
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91da11f8 LB |
1 | /* |
2 | * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips | |
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 | #ifndef __LINUX_NET_DSA_H | |
12 | #define __LINUX_NET_DSA_H | |
13 | ||
4d56a29f | 14 | #include <linux/if.h> |
ea1f51be | 15 | #include <linux/if_ether.h> |
c8f0b869 | 16 | #include <linux/list.h> |
f515f192 | 17 | #include <linux/notifier.h> |
cf50dcc2 BH |
18 | #include <linux/timer.h> |
19 | #include <linux/workqueue.h> | |
fa981d9a | 20 | #include <linux/of.h> |
a2820543 | 21 | #include <linux/ethtool.h> |
96567d5d | 22 | #include <net/devlink.h> |
f0c24ccf | 23 | #include <net/switchdev.h> |
cf50dcc2 | 24 | |
f50f2127 | 25 | struct tc_action; |
4d56a29f RK |
26 | struct phy_device; |
27 | struct fixed_phy_status; | |
f50f2127 | 28 | |
ac7a04c3 FF |
29 | enum dsa_tag_protocol { |
30 | DSA_TAG_PROTO_NONE = 0, | |
eb7b7211 | 31 | DSA_TAG_PROTO_BRCM, |
b74b70c4 | 32 | DSA_TAG_PROTO_BRCM_PREPEND, |
ac7a04c3 | 33 | DSA_TAG_PROTO_DSA, |
ac7a04c3 | 34 | DSA_TAG_PROTO_EDSA, |
8b8010fb | 35 | DSA_TAG_PROTO_KSZ, |
e8fe177a | 36 | DSA_TAG_PROTO_LAN9303, |
eb7b7211 AL |
37 | DSA_TAG_PROTO_MTK, |
38 | DSA_TAG_PROTO_QCA, | |
39 | DSA_TAG_PROTO_TRAILER, | |
39a7f2a4 | 40 | DSA_TAG_LAST, /* MUST BE LAST */ |
ac7a04c3 | 41 | }; |
5037d532 | 42 | |
e84665c9 LB |
43 | #define DSA_MAX_SWITCHES 4 |
44 | #define DSA_MAX_PORTS 12 | |
45 | ||
d390238c VD |
46 | #define DSA_RTABLE_NONE -1 |
47 | ||
e84665c9 LB |
48 | struct dsa_chip_data { |
49 | /* | |
50 | * How to access the switch configuration registers. | |
51 | */ | |
b4d2394d | 52 | struct device *host_dev; |
e84665c9 LB |
53 | int sw_addr; |
54 | ||
71e0bbde FF |
55 | /* |
56 | * Reference to network devices | |
57 | */ | |
58 | struct device *netdev[DSA_MAX_PORTS]; | |
59 | ||
6793abb4 GR |
60 | /* set to size of eeprom if supported by the switch */ |
61 | int eeprom_len; | |
62 | ||
fa981d9a FF |
63 | /* Device tree node pointer for this specific switch chip |
64 | * used during switch setup in case additional properties | |
65 | * and resources needs to be used | |
66 | */ | |
67 | struct device_node *of_node; | |
68 | ||
e84665c9 LB |
69 | /* |
70 | * The names of the switch's ports. Use "cpu" to | |
71 | * designate the switch port that the cpu is connected to, | |
72 | * "dsa" to indicate that this port is a DSA link to | |
73 | * another switch, NULL to indicate the port is unused, | |
74 | * or any other string to indicate this is a physical port. | |
75 | */ | |
76 | char *port_names[DSA_MAX_PORTS]; | |
bd47497a | 77 | struct device_node *port_dn[DSA_MAX_PORTS]; |
e84665c9 LB |
78 | |
79 | /* | |
4a7704ff AL |
80 | * An array of which element [a] indicates which port on this |
81 | * switch should be used to send packets to that are destined | |
82 | * for switch a. Can be NULL if there is only one switch chip. | |
e84665c9 | 83 | */ |
4a7704ff | 84 | s8 rtable[DSA_MAX_SWITCHES]; |
e84665c9 | 85 | }; |
91da11f8 LB |
86 | |
87 | struct dsa_platform_data { | |
88 | /* | |
89 | * Reference to a Linux network interface that connects | |
e84665c9 | 90 | * to the root switch chip of the tree. |
91da11f8 LB |
91 | */ |
92 | struct device *netdev; | |
769a0202 | 93 | struct net_device *of_netdev; |
91da11f8 LB |
94 | |
95 | /* | |
e84665c9 LB |
96 | * Info structs describing each of the switch chips |
97 | * connected via this network interface. | |
91da11f8 | 98 | */ |
e84665c9 LB |
99 | int nr_chips; |
100 | struct dsa_chip_data *chip; | |
91da11f8 LB |
101 | }; |
102 | ||
5075314e | 103 | struct packet_type; |
3e8a72d1 | 104 | |
68277a2c JC |
105 | struct dsa_device_ops { |
106 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
107 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
89e49506 | 108 | struct packet_type *pt); |
598a9680 JC |
109 | int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
110 | int *offset); | |
68277a2c JC |
111 | }; |
112 | ||
cf50dcc2 | 113 | struct dsa_switch_tree { |
83c0afae AL |
114 | struct list_head list; |
115 | ||
f515f192 VD |
116 | /* Notifier chain for switch-wide events */ |
117 | struct raw_notifier_head nh; | |
118 | ||
83c0afae | 119 | /* Tree identifier */ |
49463b7f | 120 | unsigned int index; |
83c0afae AL |
121 | |
122 | /* Number of switches attached to this tree */ | |
123 | struct kref refcount; | |
124 | ||
125 | /* Has this tree been applied to the hardware? */ | |
ec15dd42 | 126 | bool setup; |
83c0afae | 127 | |
cf50dcc2 BH |
128 | /* |
129 | * Configuration data for the platform device that owns | |
130 | * this dsa switch tree instance. | |
131 | */ | |
132 | struct dsa_platform_data *pd; | |
133 | ||
cf50dcc2 | 134 | /* |
8b0d3ea5 | 135 | * The switch port to which the CPU is attached. |
cf50dcc2 | 136 | */ |
8b0d3ea5 | 137 | struct dsa_port *cpu_dp; |
cf50dcc2 | 138 | |
cf50dcc2 BH |
139 | /* |
140 | * Data for the individual switch chips. | |
141 | */ | |
142 | struct dsa_switch *ds[DSA_MAX_SWITCHES]; | |
143 | }; | |
144 | ||
f50f2127 FF |
145 | /* TC matchall action types, only mirroring for now */ |
146 | enum dsa_port_mall_action_type { | |
147 | DSA_PORT_MALL_MIRROR, | |
148 | }; | |
149 | ||
150 | /* TC mirroring entry */ | |
151 | struct dsa_mall_mirror_tc_entry { | |
152 | u8 to_local_port; | |
153 | bool ingress; | |
154 | }; | |
155 | ||
156 | /* TC matchall entry */ | |
157 | struct dsa_mall_tc_entry { | |
158 | struct list_head list; | |
159 | unsigned long cookie; | |
160 | enum dsa_port_mall_action_type type; | |
161 | union { | |
162 | struct dsa_mall_mirror_tc_entry mirror; | |
163 | }; | |
164 | }; | |
165 | ||
166 | ||
c8b09808 | 167 | struct dsa_port { |
f8b8b1cd VD |
168 | /* A CPU port is physically connected to a master device. |
169 | * A user port exposed to userspace has a slave device. | |
170 | */ | |
171 | union { | |
172 | struct net_device *master; | |
173 | struct net_device *slave; | |
174 | }; | |
175 | ||
15240248 VD |
176 | /* CPU port tagging operations used by master or slave devices */ |
177 | const struct dsa_device_ops *tag_ops; | |
178 | ||
3e41f93b VD |
179 | /* Copies for faster access in master receive hot path */ |
180 | struct dsa_switch_tree *dst; | |
181 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
182 | struct packet_type *pt); | |
183 | ||
057cad2c VD |
184 | enum { |
185 | DSA_PORT_TYPE_UNUSED = 0, | |
186 | DSA_PORT_TYPE_CPU, | |
187 | DSA_PORT_TYPE_DSA, | |
188 | DSA_PORT_TYPE_USER, | |
189 | } type; | |
190 | ||
818be848 VD |
191 | struct dsa_switch *ds; |
192 | unsigned int index; | |
71e0bbde | 193 | const char *name; |
24a9332a | 194 | const struct dsa_port *cpu_dp; |
189b0d93 | 195 | struct device_node *dn; |
34a79f63 | 196 | unsigned int ageing_time; |
732f794c | 197 | u8 stp_state; |
a5e9a02e | 198 | struct net_device *bridge_dev; |
96567d5d | 199 | struct devlink_port devlink_port; |
67dbb9d4 FF |
200 | /* |
201 | * Original copy of the master netdev ethtool_ops | |
202 | */ | |
67dbb9d4 | 203 | const struct ethtool_ops *orig_ethtool_ops; |
c8b09808 AL |
204 | }; |
205 | ||
c8f0b869 | 206 | struct dsa_switch { |
c33063d6 AL |
207 | struct device *dev; |
208 | ||
c8f0b869 BH |
209 | /* |
210 | * Parent switch tree, and switch index. | |
211 | */ | |
212 | struct dsa_switch_tree *dst; | |
99feaafc | 213 | unsigned int index; |
c8f0b869 | 214 | |
f515f192 VD |
215 | /* Listener for switch fabric events */ |
216 | struct notifier_block nb; | |
217 | ||
7543a6d5 AL |
218 | /* |
219 | * Give the switch driver somewhere to hang its private data | |
220 | * structure. | |
221 | */ | |
222 | void *priv; | |
223 | ||
c8f0b869 BH |
224 | /* |
225 | * Configuration data for this switch. | |
226 | */ | |
ff04955c | 227 | struct dsa_chip_data *cd; |
c8f0b869 BH |
228 | |
229 | /* | |
9d490b4e | 230 | * The switch operations. |
c8f0b869 | 231 | */ |
a82f67af | 232 | const struct dsa_switch_ops *ops; |
c8f0b869 | 233 | |
66472fc0 AL |
234 | /* |
235 | * An array of which element [a] indicates which port on this | |
236 | * switch should be used to send packets to that are destined | |
237 | * for switch a. Can be NULL if there is only one switch chip. | |
238 | */ | |
239 | s8 rtable[DSA_MAX_SWITCHES]; | |
240 | ||
c8f0b869 BH |
241 | /* |
242 | * Slave mii_bus and devices for the individual ports. | |
243 | */ | |
0d8bcdd3 | 244 | u32 phys_mii_mask; |
c8f0b869 | 245 | struct mii_bus *slave_mii_bus; |
a0c02161 | 246 | |
0f3da6af VD |
247 | /* Ageing Time limits in msecs */ |
248 | unsigned int ageing_time_min; | |
249 | unsigned int ageing_time_max; | |
250 | ||
96567d5d AL |
251 | /* devlink used to represent this switch device */ |
252 | struct devlink *devlink; | |
253 | ||
55199df6 FF |
254 | /* Number of switch port queues */ |
255 | unsigned int num_tx_queues; | |
256 | ||
a0c02161 VD |
257 | /* Dynamically allocated ports, keep last */ |
258 | size_t num_ports; | |
259 | struct dsa_port ports[]; | |
c8f0b869 BH |
260 | }; |
261 | ||
c38c5a66 | 262 | static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 263 | { |
c38c5a66 VD |
264 | return &ds->ports[p]; |
265 | } | |
bff7b688 | 266 | |
c38c5a66 VD |
267 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
268 | { | |
269 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
270 | } |
271 | ||
c8f0b869 BH |
272 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
273 | { | |
c38c5a66 | 274 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
275 | } |
276 | ||
60045cbf AL |
277 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
278 | { | |
c38c5a66 | 279 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
280 | } |
281 | ||
2b3e9891 | 282 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 283 | { |
c38c5a66 | 284 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
285 | } |
286 | ||
02bc6e54 VD |
287 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
288 | { | |
c38c5a66 VD |
289 | u32 mask = 0; |
290 | int p; | |
02bc6e54 | 291 | |
c38c5a66 VD |
292 | for (p = 0; p < ds->num_ports; p++) |
293 | if (dsa_is_user_port(ds, p)) | |
294 | mask |= BIT(p); | |
295 | ||
296 | return mask; | |
c8652c83 VD |
297 | } |
298 | ||
c8f0b869 BH |
299 | static inline u8 dsa_upstream_port(struct dsa_switch *ds) |
300 | { | |
301 | struct dsa_switch_tree *dst = ds->dst; | |
302 | ||
303 | /* | |
304 | * If this is the root switch (i.e. the switch that connects | |
305 | * to the CPU), return the cpu port number on this switch. | |
306 | * Else return the (DSA) port number that connects to the | |
307 | * switch that is one hop closer to the cpu. | |
308 | */ | |
8b0d3ea5 VD |
309 | if (dst->cpu_dp->ds == ds) |
310 | return dst->cpu_dp->index; | |
c8f0b869 | 311 | else |
8b0d3ea5 | 312 | return ds->rtable[dst->cpu_dp->ds->index]; |
c8f0b869 BH |
313 | } |
314 | ||
2bedde1a AS |
315 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
316 | bool is_static, void *data); | |
9d490b4e | 317 | struct dsa_switch_ops { |
c8f0b869 | 318 | /* |
a6a71f19 | 319 | * Legacy probing. |
c8f0b869 | 320 | */ |
0209d144 VD |
321 | const char *(*probe)(struct device *dsa_dev, |
322 | struct device *host_dev, int sw_addr, | |
323 | void **priv); | |
7b314362 | 324 | |
5ed4e3eb FF |
325 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
326 | int port); | |
7b314362 | 327 | |
c8f0b869 | 328 | int (*setup)(struct dsa_switch *ds); |
6819563e | 329 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
330 | |
331 | /* | |
332 | * Access to the switch's PHY registers. | |
333 | */ | |
334 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
335 | int (*phy_write)(struct dsa_switch *ds, int port, | |
336 | int regnum, u16 val); | |
337 | ||
ec9436ba FF |
338 | /* |
339 | * Link state adjustment (called from libphy) | |
340 | */ | |
341 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
342 | struct phy_device *phydev); | |
ce31b31c FF |
343 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
344 | struct fixed_phy_status *st); | |
ec9436ba | 345 | |
c8f0b869 BH |
346 | /* |
347 | * ethtool hardware statistics. | |
348 | */ | |
349 | void (*get_strings)(struct dsa_switch *ds, int port, uint8_t *data); | |
350 | void (*get_ethtool_stats)(struct dsa_switch *ds, | |
351 | int port, uint64_t *data); | |
352 | int (*get_sset_count)(struct dsa_switch *ds); | |
24462549 | 353 | |
19e57c4e FF |
354 | /* |
355 | * ethtool Wake-on-LAN | |
356 | */ | |
357 | void (*get_wol)(struct dsa_switch *ds, int port, | |
358 | struct ethtool_wolinfo *w); | |
359 | int (*set_wol)(struct dsa_switch *ds, int port, | |
360 | struct ethtool_wolinfo *w); | |
361 | ||
24462549 FF |
362 | /* |
363 | * Suspend and resume | |
364 | */ | |
365 | int (*suspend)(struct dsa_switch *ds); | |
366 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
367 | |
368 | /* | |
369 | * Port enable/disable | |
370 | */ | |
371 | int (*port_enable)(struct dsa_switch *ds, int port, | |
372 | struct phy_device *phy); | |
373 | void (*port_disable)(struct dsa_switch *ds, int port, | |
374 | struct phy_device *phy); | |
7905288f FF |
375 | |
376 | /* | |
08f50061 | 377 | * Port's MAC EEE settings |
7905288f | 378 | */ |
08f50061 VD |
379 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
380 | struct ethtool_eee *e); | |
381 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
382 | struct ethtool_eee *e); | |
51579c3f | 383 | |
6793abb4 GR |
384 | /* EEPROM access */ |
385 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
386 | int (*get_eeprom)(struct dsa_switch *ds, | |
387 | struct ethtool_eeprom *eeprom, u8 *data); | |
388 | int (*set_eeprom)(struct dsa_switch *ds, | |
389 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
390 | |
391 | /* | |
392 | * Register access. | |
393 | */ | |
394 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
395 | void (*get_regs)(struct dsa_switch *ds, int port, | |
396 | struct ethtool_regs *regs, void *p); | |
b73adef6 FF |
397 | |
398 | /* | |
399 | * Bridge integration | |
400 | */ | |
34a79f63 | 401 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 402 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
a6692754 | 403 | struct net_device *bridge); |
f123f2fb VD |
404 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
405 | struct net_device *bridge); | |
43c44a9f VD |
406 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
407 | u8 state); | |
732f794c | 408 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
2a778e1b | 409 | |
11149536 VD |
410 | /* |
411 | * VLAN support | |
412 | */ | |
fb2dabad VD |
413 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
414 | bool vlan_filtering); | |
76e398a6 VD |
415 | int (*port_vlan_prepare)(struct dsa_switch *ds, int port, |
416 | const struct switchdev_obj_port_vlan *vlan, | |
417 | struct switchdev_trans *trans); | |
4d5770b3 | 418 | void (*port_vlan_add)(struct dsa_switch *ds, int port, |
76e398a6 VD |
419 | const struct switchdev_obj_port_vlan *vlan, |
420 | struct switchdev_trans *trans); | |
421 | int (*port_vlan_del)(struct dsa_switch *ds, int port, | |
422 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
423 | /* |
424 | * Forwarding database | |
425 | */ | |
1b6dd556 | 426 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
6c2c1dcb | 427 | const unsigned char *addr, u16 vid); |
2a778e1b | 428 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
6c2c1dcb | 429 | const unsigned char *addr, u16 vid); |
ea70ba98 | 430 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 431 | dsa_fdb_dump_cb_t *cb, void *data); |
8df30255 VD |
432 | |
433 | /* | |
434 | * Multicast database | |
435 | */ | |
436 | int (*port_mdb_prepare)(struct dsa_switch *ds, int port, | |
437 | const struct switchdev_obj_port_mdb *mdb, | |
438 | struct switchdev_trans *trans); | |
439 | void (*port_mdb_add)(struct dsa_switch *ds, int port, | |
440 | const struct switchdev_obj_port_mdb *mdb, | |
441 | struct switchdev_trans *trans); | |
442 | int (*port_mdb_del)(struct dsa_switch *ds, int port, | |
443 | const struct switchdev_obj_port_mdb *mdb); | |
bf9f2648 FF |
444 | /* |
445 | * RXNFC | |
446 | */ | |
447 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
448 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
449 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
450 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
451 | |
452 | /* | |
453 | * TC integration | |
454 | */ | |
455 | int (*port_mirror_add)(struct dsa_switch *ds, int port, | |
456 | struct dsa_mall_mirror_tc_entry *mirror, | |
457 | bool ingress); | |
458 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
459 | struct dsa_mall_mirror_tc_entry *mirror); | |
40ef2c93 VD |
460 | |
461 | /* | |
462 | * Cross-chip operations | |
463 | */ | |
464 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, | |
465 | int port, struct net_device *br); | |
466 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, | |
467 | int port, struct net_device *br); | |
c8f0b869 BH |
468 | }; |
469 | ||
ab3d408d FF |
470 | struct dsa_switch_driver { |
471 | struct list_head list; | |
a82f67af | 472 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
473 | }; |
474 | ||
a6a71f19 | 475 | /* Legacy driver registration */ |
ab3d408d FF |
476 | void register_switch_driver(struct dsa_switch_driver *type); |
477 | void unregister_switch_driver(struct dsa_switch_driver *type); | |
b4d2394d | 478 | struct mii_bus *dsa_host_dev_to_mii_bus(struct device *dev); |
a6a71f19 | 479 | |
14b89f36 | 480 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 481 | |
73a7ece8 | 482 | /* Keep inline for faster access in hot path */ |
c6e970a0 AL |
483 | static inline bool netdev_uses_dsa(struct net_device *dev) |
484 | { | |
485 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 486 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
487 | #endif |
488 | return false; | |
489 | } | |
490 | ||
a0c02161 | 491 | struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); |
83c0afae | 492 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 493 | int dsa_register_switch(struct dsa_switch *ds); |
ea825e70 FF |
494 | #ifdef CONFIG_PM_SLEEP |
495 | int dsa_switch_suspend(struct dsa_switch *ds); | |
496 | int dsa_switch_resume(struct dsa_switch *ds); | |
497 | #else | |
498 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
499 | { | |
500 | return 0; | |
501 | } | |
502 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
503 | { | |
504 | return 0; | |
505 | } | |
506 | #endif /* CONFIG_PM_SLEEP */ | |
507 | ||
60724d4b FF |
508 | enum dsa_notifier_type { |
509 | DSA_PORT_REGISTER, | |
510 | DSA_PORT_UNREGISTER, | |
511 | }; | |
512 | ||
513 | struct dsa_notifier_info { | |
514 | struct net_device *dev; | |
515 | }; | |
516 | ||
517 | struct dsa_notifier_register_info { | |
518 | struct dsa_notifier_info info; /* must be first */ | |
519 | struct net_device *master; | |
520 | unsigned int port_number; | |
521 | unsigned int switch_number; | |
522 | }; | |
523 | ||
524 | static inline struct net_device * | |
525 | dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) | |
526 | { | |
527 | return info->dev; | |
528 | } | |
529 | ||
530 | #if IS_ENABLED(CONFIG_NET_DSA) | |
531 | int register_dsa_notifier(struct notifier_block *nb); | |
532 | int unregister_dsa_notifier(struct notifier_block *nb); | |
533 | int call_dsa_notifiers(unsigned long val, struct net_device *dev, | |
534 | struct dsa_notifier_info *info); | |
535 | #else | |
536 | static inline int register_dsa_notifier(struct notifier_block *nb) | |
537 | { | |
538 | return 0; | |
539 | } | |
540 | ||
541 | static inline int unregister_dsa_notifier(struct notifier_block *nb) | |
542 | { | |
543 | return 0; | |
544 | } | |
545 | ||
546 | static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, | |
547 | struct dsa_notifier_info *info) | |
548 | { | |
549 | return NOTIFY_DONE; | |
550 | } | |
551 | #endif | |
552 | ||
0a5f14ce FF |
553 | /* Broadcom tag specific helpers to insert and extract queue/port number */ |
554 | #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) | |
555 | #define BRCM_TAG_GET_PORT(v) ((v) >> 8) | |
556 | #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) | |
557 | ||
91da11f8 | 558 | #endif |