Commit | Line | Data |
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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 |
8dce89aa | 45 | #define DSA_TAG_PROTO_OCELOT_VALUE 15 |
0b42f033 | 46 | |
ac7a04c3 | 47 | enum dsa_tag_protocol { |
0b42f033 AL |
48 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
49 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, | |
50 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, | |
51 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, | |
52 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, | |
53 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, | |
54 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, | |
55 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, | |
56 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, | |
57 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, | |
58 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, | |
59 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, | |
f9bbe447 | 60 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
227d07a0 | 61 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
016e43a2 | 62 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
8dce89aa | 63 | DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, |
ac7a04c3 | 64 | }; |
5037d532 | 65 | |
5075314e | 66 | struct packet_type; |
90af1059 | 67 | struct dsa_switch; |
3e8a72d1 | 68 | |
68277a2c JC |
69 | struct dsa_device_ops { |
70 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
71 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
89e49506 | 72 | struct packet_type *pt); |
598a9680 JC |
73 | int (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
74 | int *offset); | |
cc1939e4 VO |
75 | /* Used to determine which traffic should match the DSA filter in |
76 | * eth_type_trans, and which, if any, should bypass it and be processed | |
77 | * as regular on the master net device. | |
78 | */ | |
79 | bool (*filter)(const struct sk_buff *skb, struct net_device *dev); | |
a5dd3087 | 80 | unsigned int overhead; |
875138f8 | 81 | const char *name; |
056eed2f | 82 | enum dsa_tag_protocol proto; |
68277a2c JC |
83 | }; |
84 | ||
0b42f033 AL |
85 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
86 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
87 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
88 | ||
b68b0dd0 VO |
89 | struct dsa_skb_cb { |
90 | struct sk_buff *clone; | |
97a69a0d | 91 | bool deferred_xmit; |
b68b0dd0 VO |
92 | }; |
93 | ||
94 | struct __dsa_skb_cb { | |
95 | struct dsa_skb_cb cb; | |
96 | u8 priv[48 - sizeof(struct dsa_skb_cb)]; | |
97 | }; | |
98 | ||
b68b0dd0 VO |
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 | ||
ab8ccae1 VD |
125 | /* List of switch ports */ |
126 | struct list_head ports; | |
127 | ||
c5f51765 VD |
128 | /* List of DSA links composing the routing table */ |
129 | struct list_head rtable; | |
cf50dcc2 BH |
130 | }; |
131 | ||
f50f2127 FF |
132 | /* TC matchall action types, only mirroring for now */ |
133 | enum dsa_port_mall_action_type { | |
134 | DSA_PORT_MALL_MIRROR, | |
135 | }; | |
136 | ||
137 | /* TC mirroring entry */ | |
138 | struct dsa_mall_mirror_tc_entry { | |
139 | u8 to_local_port; | |
140 | bool ingress; | |
141 | }; | |
142 | ||
143 | /* TC matchall entry */ | |
144 | struct dsa_mall_tc_entry { | |
145 | struct list_head list; | |
146 | unsigned long cookie; | |
147 | enum dsa_port_mall_action_type type; | |
148 | union { | |
149 | struct dsa_mall_mirror_tc_entry mirror; | |
150 | }; | |
151 | }; | |
152 | ||
153 | ||
c8b09808 | 154 | struct dsa_port { |
f8b8b1cd VD |
155 | /* A CPU port is physically connected to a master device. |
156 | * A user port exposed to userspace has a slave device. | |
157 | */ | |
158 | union { | |
159 | struct net_device *master; | |
160 | struct net_device *slave; | |
161 | }; | |
162 | ||
15240248 VD |
163 | /* CPU port tagging operations used by master or slave devices */ |
164 | const struct dsa_device_ops *tag_ops; | |
165 | ||
3e41f93b VD |
166 | /* Copies for faster access in master receive hot path */ |
167 | struct dsa_switch_tree *dst; | |
168 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
169 | struct packet_type *pt); | |
cc1939e4 | 170 | bool (*filter)(const struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 171 | |
057cad2c VD |
172 | enum { |
173 | DSA_PORT_TYPE_UNUSED = 0, | |
174 | DSA_PORT_TYPE_CPU, | |
175 | DSA_PORT_TYPE_DSA, | |
176 | DSA_PORT_TYPE_USER, | |
177 | } type; | |
178 | ||
818be848 VD |
179 | struct dsa_switch *ds; |
180 | unsigned int index; | |
71e0bbde | 181 | const char *name; |
68b2d4a8 | 182 | struct dsa_port *cpu_dp; |
a2c7023f | 183 | const char *mac; |
189b0d93 | 184 | struct device_node *dn; |
34a79f63 | 185 | unsigned int ageing_time; |
33162e9a | 186 | bool vlan_filtering; |
732f794c | 187 | u8 stp_state; |
a5e9a02e | 188 | struct net_device *bridge_dev; |
96567d5d | 189 | struct devlink_port devlink_port; |
aab9c406 | 190 | struct phylink *pl; |
44cc27e4 | 191 | struct phylink_config pl_config; |
97a69a0d VO |
192 | |
193 | struct work_struct xmit_work; | |
194 | struct sk_buff_head xmit_queue; | |
195 | ||
ab8ccae1 VD |
196 | struct list_head list; |
197 | ||
c362beb0 VO |
198 | /* |
199 | * Give the switch driver somewhere to hang its per-port private data | |
200 | * structures (accessible from the tagger). | |
201 | */ | |
202 | void *priv; | |
203 | ||
67dbb9d4 FF |
204 | /* |
205 | * Original copy of the master netdev ethtool_ops | |
206 | */ | |
67dbb9d4 | 207 | const struct ethtool_ops *orig_ethtool_ops; |
da7b9e9b FF |
208 | |
209 | /* | |
210 | * Original copy of the master netdev net_device_ops | |
211 | */ | |
212 | const struct net_device_ops *orig_ndo_ops; | |
fb35c60c VD |
213 | |
214 | bool setup; | |
c8b09808 AL |
215 | }; |
216 | ||
c5f51765 VD |
217 | /* TODO: ideally DSA ports would have a single dp->link_dp member, |
218 | * and no dst->rtable nor this struct dsa_link would be needed, | |
219 | * but this would require some more complex tree walking, | |
220 | * so keep it stupid at the moment and list them all. | |
221 | */ | |
222 | struct dsa_link { | |
223 | struct dsa_port *dp; | |
224 | struct dsa_port *link_dp; | |
225 | struct list_head list; | |
226 | }; | |
227 | ||
c8f0b869 | 228 | struct dsa_switch { |
fb35c60c VD |
229 | bool setup; |
230 | ||
c33063d6 AL |
231 | struct device *dev; |
232 | ||
c8f0b869 BH |
233 | /* |
234 | * Parent switch tree, and switch index. | |
235 | */ | |
236 | struct dsa_switch_tree *dst; | |
99feaafc | 237 | unsigned int index; |
c8f0b869 | 238 | |
f515f192 VD |
239 | /* Listener for switch fabric events */ |
240 | struct notifier_block nb; | |
241 | ||
7543a6d5 AL |
242 | /* |
243 | * Give the switch driver somewhere to hang its private data | |
244 | * structure. | |
245 | */ | |
246 | void *priv; | |
247 | ||
c8f0b869 BH |
248 | /* |
249 | * Configuration data for this switch. | |
250 | */ | |
ff04955c | 251 | struct dsa_chip_data *cd; |
c8f0b869 BH |
252 | |
253 | /* | |
9d490b4e | 254 | * The switch operations. |
c8f0b869 | 255 | */ |
a82f67af | 256 | const struct dsa_switch_ops *ops; |
c8f0b869 | 257 | |
c8f0b869 BH |
258 | /* |
259 | * Slave mii_bus and devices for the individual ports. | |
260 | */ | |
0d8bcdd3 | 261 | u32 phys_mii_mask; |
c8f0b869 | 262 | struct mii_bus *slave_mii_bus; |
a0c02161 | 263 | |
0f3da6af VD |
264 | /* Ageing Time limits in msecs */ |
265 | unsigned int ageing_time_min; | |
266 | unsigned int ageing_time_max; | |
267 | ||
96567d5d AL |
268 | /* devlink used to represent this switch device */ |
269 | struct devlink *devlink; | |
270 | ||
55199df6 FF |
271 | /* Number of switch port queues */ |
272 | unsigned int num_tx_queues; | |
273 | ||
8f5d16f6 VO |
274 | /* Disallow bridge core from requesting different VLAN awareness |
275 | * settings on ports if not hardware-supported | |
276 | */ | |
277 | bool vlan_filtering_is_global; | |
278 | ||
14574676 VO |
279 | /* In case vlan_filtering_is_global is set, the VLAN awareness state |
280 | * should be retrieved from here and not from the per-port settings. | |
281 | */ | |
282 | bool vlan_filtering; | |
283 | ||
a0c02161 | 284 | size_t num_ports; |
c8f0b869 BH |
285 | }; |
286 | ||
68bb8ea8 | 287 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 288 | { |
b96ddf25 | 289 | struct dsa_switch_tree *dst = ds->dst; |
d607525b | 290 | struct dsa_port *dp; |
b96ddf25 VD |
291 | |
292 | list_for_each_entry(dp, &dst->ports, list) | |
293 | if (dp->ds == ds && dp->index == p) | |
d607525b | 294 | return dp; |
b96ddf25 | 295 | |
d607525b | 296 | return NULL; |
c38c5a66 | 297 | } |
bff7b688 | 298 | |
c38c5a66 VD |
299 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
300 | { | |
301 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
302 | } |
303 | ||
c8f0b869 BH |
304 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
305 | { | |
c38c5a66 | 306 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
307 | } |
308 | ||
60045cbf AL |
309 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
310 | { | |
c38c5a66 | 311 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
312 | } |
313 | ||
2b3e9891 | 314 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 315 | { |
c38c5a66 | 316 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
317 | } |
318 | ||
02bc6e54 VD |
319 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
320 | { | |
c38c5a66 VD |
321 | u32 mask = 0; |
322 | int p; | |
02bc6e54 | 323 | |
c38c5a66 VD |
324 | for (p = 0; p < ds->num_ports; p++) |
325 | if (dsa_is_user_port(ds, p)) | |
326 | mask |= BIT(p); | |
327 | ||
328 | return mask; | |
c8652c83 VD |
329 | } |
330 | ||
c5f51765 VD |
331 | /* Return the local port used to reach an arbitrary switch device */ |
332 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) | |
333 | { | |
334 | struct dsa_switch_tree *dst = ds->dst; | |
335 | struct dsa_link *dl; | |
336 | ||
337 | list_for_each_entry(dl, &dst->rtable, list) | |
338 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) | |
339 | return dl->dp->index; | |
340 | ||
341 | return ds->num_ports; | |
342 | } | |
343 | ||
3b8fac5d VD |
344 | /* Return the local port used to reach an arbitrary switch port */ |
345 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
346 | int port) | |
347 | { | |
348 | if (device == ds->index) | |
349 | return port; | |
350 | else | |
c5f51765 | 351 | return dsa_routing_port(ds, device); |
3b8fac5d VD |
352 | } |
353 | ||
354 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 355 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 356 | { |
07073c79 VD |
357 | const struct dsa_port *dp = dsa_to_port(ds, port); |
358 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
359 | ||
360 | if (!cpu_dp) | |
361 | return port; | |
c8f0b869 | 362 | |
3b8fac5d | 363 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
364 | } |
365 | ||
cf2d45f5 VO |
366 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
367 | { | |
368 | const struct dsa_switch *ds = dp->ds; | |
369 | ||
370 | if (ds->vlan_filtering_is_global) | |
371 | return ds->vlan_filtering; | |
372 | else | |
373 | return dp->vlan_filtering; | |
374 | } | |
375 | ||
2bedde1a AS |
376 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
377 | bool is_static, void *data); | |
9d490b4e | 378 | struct dsa_switch_ops { |
5ed4e3eb FF |
379 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
380 | int port); | |
7b314362 | 381 | |
c8f0b869 | 382 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 383 | void (*teardown)(struct dsa_switch *ds); |
6819563e | 384 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
385 | |
386 | /* | |
387 | * Access to the switch's PHY registers. | |
388 | */ | |
389 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
390 | int (*phy_write)(struct dsa_switch *ds, int port, | |
391 | int regnum, u16 val); | |
392 | ||
ec9436ba FF |
393 | /* |
394 | * Link state adjustment (called from libphy) | |
395 | */ | |
396 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
397 | struct phy_device *phydev); | |
ce31b31c FF |
398 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
399 | struct fixed_phy_status *st); | |
ec9436ba | 400 | |
11d8f3dd FF |
401 | /* |
402 | * PHYLINK integration | |
403 | */ | |
404 | void (*phylink_validate)(struct dsa_switch *ds, int port, | |
405 | unsigned long *supported, | |
406 | struct phylink_link_state *state); | |
407 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, | |
408 | struct phylink_link_state *state); | |
409 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
410 | unsigned int mode, | |
411 | const struct phylink_link_state *state); | |
412 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
413 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
414 | unsigned int mode, | |
415 | phy_interface_t interface); | |
416 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
417 | unsigned int mode, | |
418 | phy_interface_t interface, | |
419 | struct phy_device *phydev); | |
420 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, | |
421 | struct phylink_link_state *state); | |
c8f0b869 BH |
422 | /* |
423 | * ethtool hardware statistics. | |
424 | */ | |
89f09048 FF |
425 | void (*get_strings)(struct dsa_switch *ds, int port, |
426 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
427 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
428 | int port, uint64_t *data); | |
89f09048 | 429 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
430 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
431 | int port, uint64_t *data); | |
24462549 | 432 | |
19e57c4e FF |
433 | /* |
434 | * ethtool Wake-on-LAN | |
435 | */ | |
436 | void (*get_wol)(struct dsa_switch *ds, int port, | |
437 | struct ethtool_wolinfo *w); | |
438 | int (*set_wol)(struct dsa_switch *ds, int port, | |
439 | struct ethtool_wolinfo *w); | |
440 | ||
0336369d BS |
441 | /* |
442 | * ethtool timestamp info | |
443 | */ | |
444 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
445 | struct ethtool_ts_info *ts); | |
446 | ||
24462549 FF |
447 | /* |
448 | * Suspend and resume | |
449 | */ | |
450 | int (*suspend)(struct dsa_switch *ds); | |
451 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
452 | |
453 | /* | |
454 | * Port enable/disable | |
455 | */ | |
456 | int (*port_enable)(struct dsa_switch *ds, int port, | |
457 | struct phy_device *phy); | |
75104db0 | 458 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
459 | |
460 | /* | |
08f50061 | 461 | * Port's MAC EEE settings |
7905288f | 462 | */ |
08f50061 VD |
463 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
464 | struct ethtool_eee *e); | |
465 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
466 | struct ethtool_eee *e); | |
51579c3f | 467 | |
6793abb4 GR |
468 | /* EEPROM access */ |
469 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
470 | int (*get_eeprom)(struct dsa_switch *ds, | |
471 | struct ethtool_eeprom *eeprom, u8 *data); | |
472 | int (*set_eeprom)(struct dsa_switch *ds, | |
473 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
474 | |
475 | /* | |
476 | * Register access. | |
477 | */ | |
478 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
479 | void (*get_regs)(struct dsa_switch *ds, int port, | |
480 | struct ethtool_regs *regs, void *p); | |
b73adef6 FF |
481 | |
482 | /* | |
483 | * Bridge integration | |
484 | */ | |
34a79f63 | 485 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 486 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
a6692754 | 487 | struct net_device *bridge); |
f123f2fb VD |
488 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
489 | struct net_device *bridge); | |
43c44a9f VD |
490 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
491 | u8 state); | |
732f794c | 492 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
57652796 RK |
493 | int (*port_egress_floods)(struct dsa_switch *ds, int port, |
494 | bool unicast, bool multicast); | |
2a778e1b | 495 | |
11149536 VD |
496 | /* |
497 | * VLAN support | |
498 | */ | |
fb2dabad VD |
499 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
500 | bool vlan_filtering); | |
80e02360 VD |
501 | int (*port_vlan_prepare)(struct dsa_switch *ds, int port, |
502 | const struct switchdev_obj_port_vlan *vlan); | |
503 | void (*port_vlan_add)(struct dsa_switch *ds, int port, | |
504 | const struct switchdev_obj_port_vlan *vlan); | |
76e398a6 VD |
505 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
506 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
507 | /* |
508 | * Forwarding database | |
509 | */ | |
1b6dd556 | 510 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
6c2c1dcb | 511 | const unsigned char *addr, u16 vid); |
2a778e1b | 512 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
6c2c1dcb | 513 | const unsigned char *addr, u16 vid); |
ea70ba98 | 514 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 515 | dsa_fdb_dump_cb_t *cb, void *data); |
8df30255 VD |
516 | |
517 | /* | |
518 | * Multicast database | |
519 | */ | |
3709aadc VD |
520 | int (*port_mdb_prepare)(struct dsa_switch *ds, int port, |
521 | const struct switchdev_obj_port_mdb *mdb); | |
522 | void (*port_mdb_add)(struct dsa_switch *ds, int port, | |
523 | const struct switchdev_obj_port_mdb *mdb); | |
8df30255 VD |
524 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
525 | const struct switchdev_obj_port_mdb *mdb); | |
bf9f2648 FF |
526 | /* |
527 | * RXNFC | |
528 | */ | |
529 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
530 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
531 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
532 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
533 | |
534 | /* | |
535 | * TC integration | |
536 | */ | |
537 | int (*port_mirror_add)(struct dsa_switch *ds, int port, | |
538 | struct dsa_mall_mirror_tc_entry *mirror, | |
539 | bool ingress); | |
540 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
541 | struct dsa_mall_mirror_tc_entry *mirror); | |
47d23af2 VO |
542 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
543 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
544 | |
545 | /* | |
546 | * Cross-chip operations | |
547 | */ | |
548 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int sw_index, | |
549 | int port, struct net_device *br); | |
550 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int sw_index, | |
551 | int port, struct net_device *br); | |
0336369d BS |
552 | |
553 | /* | |
554 | * PTP functionality | |
555 | */ | |
556 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
557 | struct ifreq *ifr); | |
558 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
559 | struct ifreq *ifr); | |
90af1059 BS |
560 | bool (*port_txtstamp)(struct dsa_switch *ds, int port, |
561 | struct sk_buff *clone, unsigned int type); | |
562 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, | |
563 | struct sk_buff *skb, unsigned int type); | |
97a69a0d VO |
564 | |
565 | /* | |
566 | * Deferred frame Tx | |
567 | */ | |
568 | netdev_tx_t (*port_deferred_xmit)(struct dsa_switch *ds, int port, | |
569 | struct sk_buff *skb); | |
6b297524 AL |
570 | /* Devlink parameters */ |
571 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, | |
572 | struct devlink_param_gset_ctx *ctx); | |
573 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, | |
574 | struct devlink_param_gset_ctx *ctx); | |
575 | }; | |
576 | ||
577 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ | |
578 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ | |
579 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) | |
580 | ||
581 | int dsa_devlink_param_get(struct devlink *dl, u32 id, | |
582 | struct devlink_param_gset_ctx *ctx); | |
583 | int dsa_devlink_param_set(struct devlink *dl, u32 id, | |
584 | struct devlink_param_gset_ctx *ctx); | |
585 | int dsa_devlink_params_register(struct dsa_switch *ds, | |
586 | const struct devlink_param *params, | |
587 | size_t params_count); | |
588 | void dsa_devlink_params_unregister(struct dsa_switch *ds, | |
589 | const struct devlink_param *params, | |
590 | size_t params_count); | |
5cd73fbd AL |
591 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
592 | const char *resource_name, | |
593 | u64 resource_size, | |
594 | u64 resource_id, | |
595 | u64 parent_resource_id, | |
596 | const struct devlink_resource_size_params *size_params); | |
597 | ||
598 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); | |
599 | ||
600 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, | |
601 | u64 resource_id, | |
602 | devlink_resource_occ_get_t *occ_get, | |
603 | void *occ_get_priv); | |
604 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, | |
605 | u64 resource_id); | |
606 | ||
6b297524 AL |
607 | struct dsa_devlink_priv { |
608 | struct dsa_switch *ds; | |
c8f0b869 BH |
609 | }; |
610 | ||
ab3d408d FF |
611 | struct dsa_switch_driver { |
612 | struct list_head list; | |
a82f67af | 613 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
614 | }; |
615 | ||
14b89f36 | 616 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 617 | |
73a7ece8 | 618 | /* Keep inline for faster access in hot path */ |
c6e970a0 AL |
619 | static inline bool netdev_uses_dsa(struct net_device *dev) |
620 | { | |
621 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 622 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
623 | #endif |
624 | return false; | |
625 | } | |
626 | ||
cc1939e4 VO |
627 | static inline bool dsa_can_decode(const struct sk_buff *skb, |
628 | struct net_device *dev) | |
629 | { | |
630 | #if IS_ENABLED(CONFIG_NET_DSA) | |
631 | return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); | |
632 | #endif | |
633 | return false; | |
634 | } | |
635 | ||
83c0afae | 636 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 637 | int dsa_register_switch(struct dsa_switch *ds); |
ea825e70 FF |
638 | #ifdef CONFIG_PM_SLEEP |
639 | int dsa_switch_suspend(struct dsa_switch *ds); | |
640 | int dsa_switch_resume(struct dsa_switch *ds); | |
641 | #else | |
642 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
643 | { | |
644 | return 0; | |
645 | } | |
646 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
647 | { | |
648 | return 0; | |
649 | } | |
650 | #endif /* CONFIG_PM_SLEEP */ | |
651 | ||
60724d4b FF |
652 | enum dsa_notifier_type { |
653 | DSA_PORT_REGISTER, | |
654 | DSA_PORT_UNREGISTER, | |
655 | }; | |
656 | ||
657 | struct dsa_notifier_info { | |
658 | struct net_device *dev; | |
659 | }; | |
660 | ||
661 | struct dsa_notifier_register_info { | |
662 | struct dsa_notifier_info info; /* must be first */ | |
663 | struct net_device *master; | |
664 | unsigned int port_number; | |
665 | unsigned int switch_number; | |
666 | }; | |
667 | ||
668 | static inline struct net_device * | |
669 | dsa_notifier_info_to_dev(const struct dsa_notifier_info *info) | |
670 | { | |
671 | return info->dev; | |
672 | } | |
673 | ||
674 | #if IS_ENABLED(CONFIG_NET_DSA) | |
675 | int register_dsa_notifier(struct notifier_block *nb); | |
676 | int unregister_dsa_notifier(struct notifier_block *nb); | |
677 | int call_dsa_notifiers(unsigned long val, struct net_device *dev, | |
678 | struct dsa_notifier_info *info); | |
679 | #else | |
680 | static inline int register_dsa_notifier(struct notifier_block *nb) | |
681 | { | |
682 | return 0; | |
683 | } | |
684 | ||
685 | static inline int unregister_dsa_notifier(struct notifier_block *nb) | |
686 | { | |
687 | return 0; | |
688 | } | |
689 | ||
690 | static inline int call_dsa_notifiers(unsigned long val, struct net_device *dev, | |
691 | struct dsa_notifier_info *info) | |
692 | { | |
693 | return NOTIFY_DONE; | |
694 | } | |
695 | #endif | |
696 | ||
0a5f14ce FF |
697 | /* Broadcom tag specific helpers to insert and extract queue/port number */ |
698 | #define BRCM_TAG_SET_PORT_QUEUE(p, q) ((p) << 8 | q) | |
699 | #define BRCM_TAG_GET_PORT(v) ((v) >> 8) | |
700 | #define BRCM_TAG_GET_QUEUE(v) ((v) & 0xff) | |
701 | ||
cf963573 | 702 | |
97a69a0d | 703 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
cf963573 FF |
704 | int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); |
705 | int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); | |
706 | int dsa_port_get_phy_sset_count(struct dsa_port *dp); | |
11d8f3dd | 707 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 708 | |
d3b8c049 AL |
709 | struct dsa_tag_driver { |
710 | const struct dsa_device_ops *ops; | |
711 | struct list_head list; | |
712 | struct module *owner; | |
713 | }; | |
714 | ||
715 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
716 | unsigned int count, | |
717 | struct module *owner); | |
718 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
719 | unsigned int count); | |
720 | ||
721 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
722 | static int __init dsa_tag_driver_module_init(void) \ | |
723 | { \ | |
724 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
725 | THIS_MODULE); \ | |
726 | return 0; \ | |
727 | } \ | |
728 | module_init(dsa_tag_driver_module_init); \ | |
729 | \ | |
730 | static void __exit dsa_tag_driver_module_exit(void) \ | |
731 | { \ | |
732 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
733 | } \ | |
734 | module_exit(dsa_tag_driver_module_exit) | |
735 | ||
736 | /** | |
737 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
738 | * drivers | |
739 | * @__ops_array: Array of tag driver strucutres | |
740 | * | |
741 | * Helper macro for DSA tag drivers which do not do anything special | |
742 | * in module init/exit. Each module may only use this macro once, and | |
743 | * calling it replaces module_init() and module_exit(). | |
744 | */ | |
745 | #define module_dsa_tag_drivers(__ops_array) \ | |
746 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
747 | ||
748 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
749 | ||
750 | /* Create a static structure we can build a linked list of dsa_tag | |
751 | * drivers | |
752 | */ | |
753 | #define DSA_TAG_DRIVER(__ops) \ | |
754 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
755 | .ops = &__ops, \ | |
756 | } | |
757 | ||
758 | /** | |
759 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
760 | * driver | |
761 | * @__ops: Single tag driver structures | |
762 | * | |
763 | * Helper macro for DSA tag drivers which do not do anything special | |
764 | * in module init/exit. Each module may only use this macro once, and | |
765 | * calling it replaces module_init() and module_exit(). | |
766 | */ | |
767 | #define module_dsa_tag_driver(__ops) \ | |
768 | DSA_TAG_DRIVER(__ops); \ | |
769 | \ | |
770 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
771 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
772 | }; \ | |
773 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 774 | #endif |
d3b8c049 | 775 |