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2874c5fd | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
91da11f8 LB |
2 | /* |
3 | * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips | |
e84665c9 | 4 | * Copyright (c) 2008-2009 Marvell Semiconductor |
91da11f8 LB |
5 | */ |
6 | ||
7 | #ifndef __LINUX_NET_DSA_H | |
8 | #define __LINUX_NET_DSA_H | |
9 | ||
4d56a29f | 10 | #include <linux/if.h> |
ea1f51be | 11 | #include <linux/if_ether.h> |
c8f0b869 | 12 | #include <linux/list.h> |
f515f192 | 13 | #include <linux/notifier.h> |
cf50dcc2 BH |
14 | #include <linux/timer.h> |
15 | #include <linux/workqueue.h> | |
fa981d9a | 16 | #include <linux/of.h> |
a2820543 | 17 | #include <linux/ethtool.h> |
0336369d | 18 | #include <linux/net_tstamp.h> |
11d8f3dd | 19 | #include <linux/phy.h> |
ecfc9372 | 20 | #include <linux/platform_data/dsa.h> |
44cc27e4 | 21 | #include <linux/phylink.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; | |
11d8f3dd | 28 | struct phylink_link_state; |
f50f2127 | 29 | |
0b42f033 AL |
30 | #define DSA_TAG_PROTO_NONE_VALUE 0 |
31 | #define DSA_TAG_PROTO_BRCM_VALUE 1 | |
32 | #define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2 | |
33 | #define DSA_TAG_PROTO_DSA_VALUE 3 | |
34 | #define DSA_TAG_PROTO_EDSA_VALUE 4 | |
35 | #define DSA_TAG_PROTO_GSWIP_VALUE 5 | |
36 | #define DSA_TAG_PROTO_KSZ9477_VALUE 6 | |
37 | #define DSA_TAG_PROTO_KSZ9893_VALUE 7 | |
38 | #define DSA_TAG_PROTO_LAN9303_VALUE 8 | |
39 | #define DSA_TAG_PROTO_MTK_VALUE 9 | |
40 | #define DSA_TAG_PROTO_QCA_VALUE 10 | |
41 | #define DSA_TAG_PROTO_TRAILER_VALUE 11 | |
f9bbe447 | 42 | #define DSA_TAG_PROTO_8021Q_VALUE 12 |
227d07a0 | 43 | #define DSA_TAG_PROTO_SJA1105_VALUE 13 |
016e43a2 | 44 | #define DSA_TAG_PROTO_KSZ8795_VALUE 14 |
0b42f033 | 45 | |
ac7a04c3 | 46 | enum dsa_tag_protocol { |
0b42f033 AL |
47 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
48 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, | |
49 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, | |
50 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, | |
51 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, | |
52 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, | |
53 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, | |
54 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, | |
55 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, | |
56 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, | |
57 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, | |
58 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, | |
f9bbe447 | 59 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
227d07a0 | 60 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
016e43a2 | 61 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
ac7a04c3 | 62 | }; |
5037d532 | 63 | |
5075314e | 64 | struct packet_type; |
90af1059 | 65 | struct dsa_switch; |
3e8a72d1 | 66 | |
68277a2c JC |
67 | struct dsa_device_ops { |
68 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
69 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
89e49506 | 70 | struct packet_type *pt); |
598a9680 JC |
71 | int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
72 | int *offset); | |
cc1939e4 VO |
73 | /* Used to determine which traffic should match the DSA filter in |
74 | * eth_type_trans, and which, if any, should bypass it and be processed | |
75 | * as regular on the master net device. | |
76 | */ | |
77 | bool (*filter)(const struct sk_buff *skb, struct net_device *dev); | |
a5dd3087 | 78 | unsigned int overhead; |
875138f8 | 79 | const char *name; |
056eed2f | 80 | enum dsa_tag_protocol proto; |
68277a2c JC |
81 | }; |
82 | ||
0b42f033 AL |
83 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
84 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
85 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
86 | ||
b68b0dd0 VO |
87 | struct dsa_skb_cb { |
88 | struct sk_buff *clone; | |
97a69a0d | 89 | bool deferred_xmit; |
b68b0dd0 VO |
90 | }; |
91 | ||
92 | struct __dsa_skb_cb { | |
93 | struct dsa_skb_cb cb; | |
94 | u8 priv[48 - sizeof(struct dsa_skb_cb)]; | |
95 | }; | |
96 | ||
97 | #define __DSA_SKB_CB(skb) ((struct __dsa_skb_cb *)((skb)->cb)) | |
98 | ||
99 | #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) | |
100 | ||
b68b0dd0 VO |
101 | #define DSA_SKB_CB_PRIV(skb) \ |
102 | ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) | |
103 | ||
cf50dcc2 | 104 | struct dsa_switch_tree { |
83c0afae AL |
105 | struct list_head list; |
106 | ||
f515f192 VD |
107 | /* Notifier chain for switch-wide events */ |
108 | struct raw_notifier_head nh; | |
109 | ||
83c0afae | 110 | /* Tree identifier */ |
49463b7f | 111 | unsigned int index; |
83c0afae AL |
112 | |
113 | /* Number of switches attached to this tree */ | |
114 | struct kref refcount; | |
115 | ||
116 | /* Has this tree been applied to the hardware? */ | |
ec15dd42 | 117 | bool setup; |
83c0afae | 118 | |
cf50dcc2 BH |
119 | /* |
120 | * Configuration data for the platform device that owns | |
121 | * this dsa switch tree instance. | |
122 | */ | |
123 | struct dsa_platform_data *pd; | |
124 | ||
cf50dcc2 | 125 | /* |
8b0d3ea5 | 126 | * The switch port to which the CPU is attached. |
cf50dcc2 | 127 | */ |
8b0d3ea5 | 128 | struct dsa_port *cpu_dp; |
cf50dcc2 | 129 | |
cf50dcc2 BH |
130 | /* |
131 | * Data for the individual switch chips. | |
132 | */ | |
133 | struct dsa_switch *ds[DSA_MAX_SWITCHES]; | |
134 | }; | |
135 | ||
f50f2127 FF |
136 | /* TC matchall action types, only mirroring for now */ |
137 | enum dsa_port_mall_action_type { | |
138 | DSA_PORT_MALL_MIRROR, | |
139 | }; | |
140 | ||
141 | /* TC mirroring entry */ | |
142 | struct dsa_mall_mirror_tc_entry { | |
143 | u8 to_local_port; | |
144 | bool ingress; | |
145 | }; | |
146 | ||
147 | /* TC matchall entry */ | |
148 | struct dsa_mall_tc_entry { | |
149 | struct list_head list; | |
150 | unsigned long cookie; | |
151 | enum dsa_port_mall_action_type type; | |
152 | union { | |
153 | struct dsa_mall_mirror_tc_entry mirror; | |
154 | }; | |
155 | }; | |
156 | ||
157 | ||
c8b09808 | 158 | struct dsa_port { |
f8b8b1cd VD |
159 | /* A CPU port is physically connected to a master device. |
160 | * A user port exposed to userspace has a slave device. | |
161 | */ | |
162 | union { | |
163 | struct net_device *master; | |
164 | struct net_device *slave; | |
165 | }; | |
166 | ||
15240248 VD |
167 | /* CPU port tagging operations used by master or slave devices */ |
168 | const struct dsa_device_ops *tag_ops; | |
169 | ||
3e41f93b VD |
170 | /* Copies for faster access in master receive hot path */ |
171 | struct dsa_switch_tree *dst; | |
172 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
173 | struct packet_type *pt); | |
cc1939e4 | 174 | bool (*filter)(const struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 175 | |
057cad2c VD |
176 | enum { |
177 | DSA_PORT_TYPE_UNUSED = 0, | |
178 | DSA_PORT_TYPE_CPU, | |
179 | DSA_PORT_TYPE_DSA, | |
180 | DSA_PORT_TYPE_USER, | |
181 | } type; | |
182 | ||
818be848 VD |
183 | struct dsa_switch *ds; |
184 | unsigned int index; | |
71e0bbde | 185 | const char *name; |
68b2d4a8 | 186 | struct dsa_port *cpu_dp; |
a2c7023f | 187 | const char *mac; |
189b0d93 | 188 | struct device_node *dn; |
34a79f63 | 189 | unsigned int ageing_time; |
33162e9a | 190 | bool vlan_filtering; |
732f794c | 191 | u8 stp_state; |
a5e9a02e | 192 | struct net_device *bridge_dev; |
96567d5d | 193 | struct devlink_port devlink_port; |
aab9c406 | 194 | struct phylink *pl; |
44cc27e4 | 195 | struct phylink_config pl_config; |
97a69a0d VO |
196 | |
197 | struct work_struct xmit_work; | |
198 | struct sk_buff_head xmit_queue; | |
199 | ||
c362beb0 VO |
200 | /* |
201 | * Give the switch driver somewhere to hang its per-port private data | |
202 | * structures (accessible from the tagger). | |
203 | */ | |
204 | void *priv; | |
205 | ||
67dbb9d4 FF |
206 | /* |
207 | * Original copy of the master netdev ethtool_ops | |
208 | */ | |
67dbb9d4 | 209 | const struct ethtool_ops *orig_ethtool_ops; |
da7b9e9b FF |
210 | |
211 | /* | |
212 | * Original copy of the master netdev net_device_ops | |
213 | */ | |
214 | const struct net_device_ops *orig_ndo_ops; | |
c8b09808 AL |
215 | }; |
216 | ||
c8f0b869 | 217 | struct dsa_switch { |
c33063d6 AL |
218 | struct device *dev; |
219 | ||
c8f0b869 BH |
220 | /* |
221 | * Parent switch tree, and switch index. | |
222 | */ | |
223 | struct dsa_switch_tree *dst; | |
99feaafc | 224 | unsigned int index; |
c8f0b869 | 225 | |
f515f192 VD |
226 | /* Listener for switch fabric events */ |
227 | struct notifier_block nb; | |
228 | ||
7543a6d5 AL |
229 | /* |
230 | * Give the switch driver somewhere to hang its private data | |
231 | * structure. | |
232 | */ | |
233 | void *priv; | |
234 | ||
c8f0b869 BH |
235 | /* |
236 | * Configuration data for this switch. | |
237 | */ | |
ff04955c | 238 | struct dsa_chip_data *cd; |
c8f0b869 BH |
239 | |
240 | /* | |
9d490b4e | 241 | * The switch operations. |
c8f0b869 | 242 | */ |
a82f67af | 243 | const struct dsa_switch_ops *ops; |
c8f0b869 | 244 | |
66472fc0 AL |
245 | /* |
246 | * An array of which element [a] indicates which port on this | |
247 | * switch should be used to send packets to that are destined | |
248 | * for switch a. Can be NULL if there is only one switch chip. | |
249 | */ | |
250 | s8 rtable[DSA_MAX_SWITCHES]; | |
251 | ||
c8f0b869 BH |
252 | /* |
253 | * Slave mii_bus and devices for the individual ports. | |
254 | */ | |
0d8bcdd3 | 255 | u32 phys_mii_mask; |
c8f0b869 | 256 | struct mii_bus *slave_mii_bus; |
a0c02161 | 257 | |
0f3da6af VD |
258 | /* Ageing Time limits in msecs */ |
259 | unsigned int ageing_time_min; | |
260 | unsigned int ageing_time_max; | |
261 | ||
96567d5d AL |
262 | /* devlink used to represent this switch device */ |
263 | struct devlink *devlink; | |
264 | ||
55199df6 FF |
265 | /* Number of switch port queues */ |
266 | unsigned int num_tx_queues; | |
267 | ||
8f5d16f6 VO |
268 | /* Disallow bridge core from requesting different VLAN awareness |
269 | * settings on ports if not hardware-supported | |
270 | */ | |
271 | bool vlan_filtering_is_global; | |
272 | ||
14574676 VO |
273 | /* In case vlan_filtering_is_global is set, the VLAN awareness state |
274 | * should be retrieved from here and not from the per-port settings. | |
275 | */ | |
276 | bool vlan_filtering; | |
277 | ||
a0c02161 VD |
278 | /* Dynamically allocated ports, keep last */ |
279 | size_t num_ports; | |
280 | struct dsa_port ports[]; | |
c8f0b869 BH |
281 | }; |
282 | ||
c38c5a66 | 283 | static inline const struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 284 | { |
c38c5a66 VD |
285 | return &ds->ports[p]; |
286 | } | |
bff7b688 | 287 | |
c38c5a66 VD |
288 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
289 | { | |
290 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
291 | } |
292 | ||
c8f0b869 BH |
293 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
294 | { | |
c38c5a66 | 295 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
296 | } |
297 | ||
60045cbf AL |
298 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
299 | { | |
c38c5a66 | 300 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
301 | } |
302 | ||
2b3e9891 | 303 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 304 | { |
c38c5a66 | 305 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
306 | } |
307 | ||
02bc6e54 VD |
308 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
309 | { | |
c38c5a66 VD |
310 | u32 mask = 0; |
311 | int p; | |
02bc6e54 | 312 | |
c38c5a66 VD |
313 | for (p = 0; p < ds->num_ports; p++) |
314 | if (dsa_is_user_port(ds, p)) | |
315 | mask |= BIT(p); | |
316 | ||
317 | return mask; | |
c8652c83 VD |
318 | } |
319 | ||
3b8fac5d VD |
320 | /* Return the local port used to reach an arbitrary switch port */ |
321 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
322 | int port) | |
323 | { | |
324 | if (device == ds->index) | |
325 | return port; | |
326 | else | |
327 | return ds->rtable[device]; | |
328 | } | |
329 | ||
330 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 331 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 332 | { |
07073c79 VD |
333 | const struct dsa_port *dp = dsa_to_port(ds, port); |
334 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
335 | ||
336 | if (!cpu_dp) | |
337 | return port; | |
c8f0b869 | 338 | |
3b8fac5d | 339 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
340 | } |
341 | ||
cf2d45f5 VO |
342 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
343 | { | |
344 | const struct dsa_switch *ds = dp->ds; | |
345 | ||
346 | if (ds->vlan_filtering_is_global) | |
347 | return ds->vlan_filtering; | |
348 | else | |
349 | return dp->vlan_filtering; | |
350 | } | |
351 | ||
2bedde1a AS |
352 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
353 | bool is_static, void *data); | |
9d490b4e | 354 | struct dsa_switch_ops { |
5ed4e3eb FF |
355 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
356 | int port); | |
7b314362 | 357 | |
c8f0b869 | 358 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 359 | void (*teardown)(struct dsa_switch *ds); |
6819563e | 360 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
361 | |
362 | /* | |
363 | * Access to the switch's PHY registers. | |
364 | */ | |
365 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
366 | int (*phy_write)(struct dsa_switch *ds, int port, | |
367 | int regnum, u16 val); | |
368 | ||
ec9436ba FF |
369 | /* |
370 | * Link state adjustment (called from libphy) | |
371 | */ | |
372 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
373 | struct phy_device *phydev); | |
ce31b31c FF |
374 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
375 | struct fixed_phy_status *st); | |
ec9436ba | 376 | |
11d8f3dd FF |
377 | /* |
378 | * PHYLINK integration | |
379 | */ | |
380 | void (*phylink_validate)(struct dsa_switch *ds, int port, | |
381 | unsigned long *supported, | |
382 | struct phylink_link_state *state); | |
383 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, | |
384 | struct phylink_link_state *state); | |
385 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
386 | unsigned int mode, | |
387 | const struct phylink_link_state *state); | |
388 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
389 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
390 | unsigned int mode, | |
391 | phy_interface_t interface); | |
392 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
393 | unsigned int mode, | |
394 | phy_interface_t interface, | |
395 | struct phy_device *phydev); | |
396 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, | |
397 | struct phylink_link_state *state); | |
c8f0b869 BH |
398 | /* |
399 | * ethtool hardware statistics. | |
400 | */ | |
89f09048 FF |
401 | void (*get_strings)(struct dsa_switch *ds, int port, |
402 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
403 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
404 | int port, uint64_t *data); | |
89f09048 | 405 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
406 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
407 | int port, uint64_t *data); | |
24462549 | 408 | |
19e57c4e FF |
409 | /* |
410 | * ethtool Wake-on-LAN | |
411 | */ | |
412 | void (*get_wol)(struct dsa_switch *ds, int port, | |
413 | struct ethtool_wolinfo *w); | |
414 | int (*set_wol)(struct dsa_switch *ds, int port, | |
415 | struct ethtool_wolinfo *w); | |
416 | ||
0336369d BS |
417 | /* |
418 | * ethtool timestamp info | |
419 | */ | |
420 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
421 | struct ethtool_ts_info *ts); | |
422 | ||
24462549 FF |
423 | /* |
424 | * Suspend and resume | |
425 | */ | |
426 | int (*suspend)(struct dsa_switch *ds); | |
427 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
428 | |
429 | /* | |
430 | * Port enable/disable | |
431 | */ | |
432 | int (*port_enable)(struct dsa_switch *ds, int port, | |
433 | struct phy_device *phy); | |
75104db0 | 434 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
435 | |
436 | /* | |
08f50061 | 437 | * Port's MAC EEE settings |
7905288f | 438 | */ |
08f50061 VD |
439 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
440 | struct ethtool_eee *e); | |
441 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
442 | struct ethtool_eee *e); | |
51579c3f | 443 | |
6793abb4 GR |
444 | /* EEPROM access */ |
445 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
446 | int (*get_eeprom)(struct dsa_switch *ds, | |
447 | struct ethtool_eeprom *eeprom, u8 *data); | |
448 | int (*set_eeprom)(struct dsa_switch *ds, | |
449 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
450 | |
451 | /* | |
452 | * Register access. | |
453 | */ | |
454 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
455 | void (*get_regs)(struct dsa_switch *ds, int port, | |
456 | struct ethtool_regs *regs, void *p); | |
b73adef6 FF |
457 | |
458 | /* | |
459 | * Bridge integration | |
460 | */ | |
34a79f63 | 461 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 462 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
a6692754 | 463 | struct net_device *bridge); |
f123f2fb VD |
464 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
465 | struct net_device *bridge); | |
43c44a9f VD |
466 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
467 | u8 state); | |
732f794c | 468 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
57652796 RK |
469 | int (*port_egress_floods)(struct dsa_switch *ds, int port, |
470 | bool unicast, bool multicast); | |
2a778e1b | 471 | |
11149536 VD |
472 | /* |
473 | * VLAN support | |
474 | */ | |
fb2dabad VD |
475 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
476 | bool vlan_filtering); | |
80e02360 VD |
477 | int (*port_vlan_prepare)(struct dsa_switch *ds, int port, |
478 | const struct switchdev_obj_port_vlan *vlan); | |
479 | void (*port_vlan_add)(struct dsa_switch *ds, int port, | |
480 | const struct switchdev_obj_port_vlan *vlan); | |
76e398a6 VD |
481 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
482 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
483 | /* |
484 | * Forwarding database | |
485 | */ | |
1b6dd556 | 486 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
6c2c1dcb | 487 | const unsigned char *addr, u16 vid); |
2a778e1b | 488 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
6c2c1dcb | 489 | const unsigned char *addr, u16 vid); |
ea70ba98 | 490 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 491 | dsa_fdb_dump_cb_t *cb, void *data); |
8df30255 VD |
492 | |
493 | /* | |
494 | * Multicast database | |
495 | */ | |
3709aadc VD |
496 | int (*port_mdb_prepare)(struct dsa_switch *ds, int port, |
497 | const struct switchdev_obj_port_mdb *mdb); | |
498 | void (*port_mdb_add)(struct dsa_switch *ds, int port, | |
499 | const struct switchdev_obj_port_mdb *mdb); | |
8df30255 VD |
500 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
501 | const struct switchdev_obj_port_mdb *mdb); | |
bf9f2648 FF |
502 | /* |
503 | * RXNFC | |
504 | */ | |
505 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
506 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
507 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
508 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
509 | |
510 | /* | |
511 | * TC integration | |
512 | */ | |
513 | int (*port_mirror_add)(struct dsa_switch *ds, int port, | |
514 | struct dsa_mall_mirror_tc_entry *mirror, | |
515 | bool ingress); | |
516 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
517 | struct dsa_mall_mirror_tc_entry *mirror); | |
47d23af2 VO |
518 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
519 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
520 | |
521 | /* | |
522 | * Cross-chip operations | |
523 | */ | |
524 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, | |
525 | int port, struct net_device *br); | |
526 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, | |
527 | int port, struct net_device *br); | |
0336369d BS |
528 | |
529 | /* | |
530 | * PTP functionality | |
531 | */ | |
532 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
533 | struct ifreq *ifr); | |
534 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
535 | struct ifreq *ifr); | |
90af1059 BS |
536 | bool (*port_txtstamp)(struct dsa_switch *ds, int port, |
537 | struct sk_buff *clone, unsigned int type); | |
538 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, | |
539 | struct sk_buff *skb, unsigned int type); | |
97a69a0d VO |
540 | |
541 | /* | |
542 | * Deferred frame Tx | |
543 | */ | |
544 | netdev_tx_t (*port_deferred_xmit)(struct dsa_switch *ds, int port, | |
545 | struct sk_buff *skb); | |
c8f0b869 BH |
546 | }; |
547 | ||
ab3d408d FF |
548 | struct dsa_switch_driver { |
549 | struct list_head list; | |
a82f67af | 550 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
551 | }; |
552 | ||
14b89f36 | 553 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 554 | |
73a7ece8 | 555 | /* Keep inline for faster access in hot path */ |
c6e970a0 AL |
556 | static inline bool netdev_uses_dsa(struct net_device *dev) |
557 | { | |
558 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 559 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
560 | #endif |
561 | return false; | |
562 | } | |
563 | ||
cc1939e4 VO |
564 | static inline bool dsa_can_decode(const struct sk_buff *skb, |
565 | struct net_device *dev) | |
566 | { | |
567 | #if IS_ENABLED(CONFIG_NET_DSA) | |
568 | return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); | |
569 | #endif | |
570 | return false; | |
571 | } | |
572 | ||
a0c02161 | 573 | struct dsa_switch *dsa_switch_alloc(struct device *dev, size_t n); |
83c0afae | 574 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 575 | int dsa_register_switch(struct dsa_switch *ds); |
ea825e70 FF |
576 | #ifdef CONFIG_PM_SLEEP |
577 | int dsa_switch_suspend(struct dsa_switch *ds); | |
578 | int dsa_switch_resume(struct dsa_switch *ds); | |
579 | #else | |
580 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
581 | { | |
582 | return 0; | |
583 | } | |
584 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
585 | { | |
586 | return 0; | |
587 | } | |
588 | #endif /* CONFIG_PM_SLEEP */ | |
589 | ||
60724d4b FF |
590 | enum dsa_notifier_type { |
591 | DSA_PORT_REGISTER, | |
592 | DSA_PORT_UNREGISTER, | |
593 | }; | |
594 | ||
595 | struct dsa_notifier_info { | |
596 | struct net_device *dev; | |
597 | }; | |
598 | ||
599 | struct dsa_notifier_register_info { | |
600 | struct dsa_notifier_info info; /* must be first */ | |
601 | struct net_device *master; | |
602 | unsigned int port_number; | |
603 | unsigned int switch_number; | |
604 | }; | |
605 | ||
606 | static inline struct net_device * | |
607 | dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) | |
608 | { | |
609 | return info->dev; | |
610 | } | |
611 | ||
612 | #if IS_ENABLED(CONFIG_NET_DSA) | |
613 | int register_dsa_notifier(struct notifier_block *nb); | |
614 | int unregister_dsa_notifier(struct notifier_block *nb); | |
615 | int call_dsa_notifiers(unsigned long val, struct net_device *dev, | |
616 | struct dsa_notifier_info *info); | |
617 | #else | |
618 | static inline int register_dsa_notifier(struct notifier_block *nb) | |
619 | { | |
620 | return 0; | |
621 | } | |
622 | ||
623 | static inline int unregister_dsa_notifier(struct notifier_block *nb) | |
624 | { | |
625 | return 0; | |
626 | } | |
627 | ||
628 | static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, | |
629 | struct dsa_notifier_info *info) | |
630 | { | |
631 | return NOTIFY_DONE; | |
632 | } | |
633 | #endif | |
634 | ||
0a5f14ce FF |
635 | /* Broadcom tag specific helpers to insert and extract queue/port number */ |
636 | #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) | |
637 | #define BRCM_TAG_GET_PORT(v) ((v) >> 8) | |
638 | #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) | |
639 | ||
cf963573 | 640 | |
97a69a0d | 641 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
cf963573 FF |
642 | int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); |
643 | int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); | |
644 | int dsa_port_get_phy_sset_count(struct dsa_port *dp); | |
11d8f3dd | 645 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 646 | |
d3b8c049 AL |
647 | struct dsa_tag_driver { |
648 | const struct dsa_device_ops *ops; | |
649 | struct list_head list; | |
650 | struct module *owner; | |
651 | }; | |
652 | ||
653 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
654 | unsigned int count, | |
655 | struct module *owner); | |
656 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
657 | unsigned int count); | |
658 | ||
659 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
660 | static int __init dsa_tag_driver_module_init(void) \ | |
661 | { \ | |
662 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
663 | THIS_MODULE); \ | |
664 | return 0; \ | |
665 | } \ | |
666 | module_init(dsa_tag_driver_module_init); \ | |
667 | \ | |
668 | static void __exit dsa_tag_driver_module_exit(void) \ | |
669 | { \ | |
670 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
671 | } \ | |
672 | module_exit(dsa_tag_driver_module_exit) | |
673 | ||
674 | /** | |
675 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
676 | * drivers | |
677 | * @__ops_array: Array of tag driver strucutres | |
678 | * | |
679 | * Helper macro for DSA tag drivers which do not do anything special | |
680 | * in module init/exit. Each module may only use this macro once, and | |
681 | * calling it replaces module_init() and module_exit(). | |
682 | */ | |
683 | #define module_dsa_tag_drivers(__ops_array) \ | |
684 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
685 | ||
686 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
687 | ||
688 | /* Create a static structure we can build a linked list of dsa_tag | |
689 | * drivers | |
690 | */ | |
691 | #define DSA_TAG_DRIVER(__ops) \ | |
692 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
693 | .ops = &__ops, \ | |
694 | } | |
695 | ||
696 | /** | |
697 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
698 | * driver | |
699 | * @__ops: Single tag driver structures | |
700 | * | |
701 | * Helper macro for DSA tag drivers which do not do anything special | |
702 | * in module init/exit. Each module may only use this macro once, and | |
703 | * calling it replaces module_init() and module_exit(). | |
704 | */ | |
705 | #define module_dsa_tag_driver(__ops) \ | |
706 | DSA_TAG_DRIVER(__ops); \ | |
707 | \ | |
708 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
709 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
710 | }; \ | |
711 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 712 | #endif |
d3b8c049 | 713 |