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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 |
48fda74f | 46 | #define DSA_TAG_PROTO_AR9331_VALUE 16 |
efd7fe68 | 47 | #define DSA_TAG_PROTO_RTL4_A_VALUE 17 |
01ef09ca | 48 | #define DSA_TAG_PROTO_HELLCREEK_VALUE 18 |
54a52823 | 49 | #define DSA_TAG_PROTO_XRS700X_VALUE 19 |
7c83a7c5 | 50 | #define DSA_TAG_PROTO_OCELOT_8021Q_VALUE 20 |
0b42f033 | 51 | |
ac7a04c3 | 52 | enum dsa_tag_protocol { |
0b42f033 AL |
53 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
54 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, | |
55 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, | |
56 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, | |
57 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, | |
58 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, | |
59 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, | |
60 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, | |
61 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, | |
62 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, | |
63 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, | |
64 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, | |
f9bbe447 | 65 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
227d07a0 | 66 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
016e43a2 | 67 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
8dce89aa | 68 | DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, |
48fda74f | 69 | DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, |
efd7fe68 | 70 | DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, |
01ef09ca | 71 | DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, |
54a52823 | 72 | DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, |
7c83a7c5 | 73 | DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, |
ac7a04c3 | 74 | }; |
5037d532 | 75 | |
5075314e | 76 | struct packet_type; |
90af1059 | 77 | struct dsa_switch; |
3e8a72d1 | 78 | |
68277a2c JC |
79 | struct dsa_device_ops { |
80 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
81 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
89e49506 | 82 | struct packet_type *pt); |
2e8cb1b3 VO |
83 | void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
84 | int *offset); | |
cc1939e4 VO |
85 | /* Used to determine which traffic should match the DSA filter in |
86 | * eth_type_trans, and which, if any, should bypass it and be processed | |
87 | * as regular on the master net device. | |
88 | */ | |
89 | bool (*filter)(const struct sk_buff *skb, struct net_device *dev); | |
a5dd3087 | 90 | unsigned int overhead; |
875138f8 | 91 | const char *name; |
056eed2f | 92 | enum dsa_tag_protocol proto; |
c3975400 VO |
93 | /* Some tagging protocols either mangle or shift the destination MAC |
94 | * address, in which case the DSA master would drop packets on ingress | |
95 | * if what it understands out of the destination MAC address is not in | |
96 | * its RX filter. | |
97 | */ | |
98 | bool promisc_on_master; | |
7a6ffe76 | 99 | bool tail_tag; |
68277a2c JC |
100 | }; |
101 | ||
4cfab356 FF |
102 | /* This structure defines the control interfaces that are overlayed by the |
103 | * DSA layer on top of the DSA CPU/management net_device instance. This is | |
104 | * used by the core net_device layer while calling various net_device_ops | |
105 | * function pointers. | |
106 | */ | |
107 | struct dsa_netdevice_ops { | |
108 | int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, | |
109 | int cmd); | |
4cfab356 FF |
110 | }; |
111 | ||
0b42f033 AL |
112 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
113 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
114 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
115 | ||
b68b0dd0 VO |
116 | struct dsa_skb_cb { |
117 | struct sk_buff *clone; | |
118 | }; | |
119 | ||
120 | struct __dsa_skb_cb { | |
121 | struct dsa_skb_cb cb; | |
122 | u8 priv[48 - sizeof(struct dsa_skb_cb)]; | |
123 | }; | |
124 | ||
b68b0dd0 VO |
125 | #define DSA_SKB_CB(skb) ((struct dsa_skb_cb *)((skb)->cb)) |
126 | ||
b68b0dd0 VO |
127 | #define DSA_SKB_CB_PRIV(skb) \ |
128 | ((void *)(skb)->cb + offsetof(struct __dsa_skb_cb, priv)) | |
129 | ||
cf50dcc2 | 130 | struct dsa_switch_tree { |
83c0afae AL |
131 | struct list_head list; |
132 | ||
f515f192 VD |
133 | /* Notifier chain for switch-wide events */ |
134 | struct raw_notifier_head nh; | |
135 | ||
83c0afae | 136 | /* Tree identifier */ |
49463b7f | 137 | unsigned int index; |
83c0afae AL |
138 | |
139 | /* Number of switches attached to this tree */ | |
140 | struct kref refcount; | |
141 | ||
142 | /* Has this tree been applied to the hardware? */ | |
ec15dd42 | 143 | bool setup; |
83c0afae | 144 | |
357f203b VO |
145 | /* Tagging protocol operations */ |
146 | const struct dsa_device_ops *tag_ops; | |
147 | ||
cf50dcc2 BH |
148 | /* |
149 | * Configuration data for the platform device that owns | |
150 | * this dsa switch tree instance. | |
151 | */ | |
152 | struct dsa_platform_data *pd; | |
153 | ||
ab8ccae1 VD |
154 | /* List of switch ports */ |
155 | struct list_head ports; | |
156 | ||
c5f51765 VD |
157 | /* List of DSA links composing the routing table */ |
158 | struct list_head rtable; | |
058102a6 TW |
159 | |
160 | /* Maps offloaded LAG netdevs to a zero-based linear ID for | |
161 | * drivers that need it. | |
162 | */ | |
163 | struct net_device **lags; | |
164 | unsigned int lags_len; | |
cf50dcc2 BH |
165 | }; |
166 | ||
058102a6 TW |
167 | #define dsa_lags_foreach_id(_id, _dst) \ |
168 | for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ | |
169 | if ((_dst)->lags[(_id)]) | |
170 | ||
171 | #define dsa_lag_foreach_port(_dp, _dst, _lag) \ | |
172 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
173 | if ((_dp)->lag_dev == (_lag)) | |
174 | ||
18596f50 GM |
175 | #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ |
176 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
177 | if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) | |
178 | ||
058102a6 TW |
179 | static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, |
180 | unsigned int id) | |
181 | { | |
182 | return dst->lags[id]; | |
183 | } | |
184 | ||
185 | static inline int dsa_lag_id(struct dsa_switch_tree *dst, | |
186 | struct net_device *lag) | |
187 | { | |
188 | unsigned int id; | |
189 | ||
190 | dsa_lags_foreach_id(id, dst) { | |
191 | if (dsa_lag_dev(dst, id) == lag) | |
192 | return id; | |
193 | } | |
194 | ||
195 | return -ENODEV; | |
196 | } | |
197 | ||
34297176 | 198 | /* TC matchall action types */ |
f50f2127 FF |
199 | enum dsa_port_mall_action_type { |
200 | DSA_PORT_MALL_MIRROR, | |
34297176 | 201 | DSA_PORT_MALL_POLICER, |
f50f2127 FF |
202 | }; |
203 | ||
204 | /* TC mirroring entry */ | |
205 | struct dsa_mall_mirror_tc_entry { | |
206 | u8 to_local_port; | |
207 | bool ingress; | |
208 | }; | |
209 | ||
34297176 VO |
210 | /* TC port policer entry */ |
211 | struct dsa_mall_policer_tc_entry { | |
5f035af7 | 212 | u32 burst; |
34297176 VO |
213 | u64 rate_bytes_per_sec; |
214 | }; | |
215 | ||
f50f2127 FF |
216 | /* TC matchall entry */ |
217 | struct dsa_mall_tc_entry { | |
218 | struct list_head list; | |
219 | unsigned long cookie; | |
220 | enum dsa_port_mall_action_type type; | |
221 | union { | |
222 | struct dsa_mall_mirror_tc_entry mirror; | |
34297176 | 223 | struct dsa_mall_policer_tc_entry policer; |
f50f2127 FF |
224 | }; |
225 | }; | |
226 | ||
227 | ||
c8b09808 | 228 | struct dsa_port { |
f8b8b1cd VD |
229 | /* A CPU port is physically connected to a master device. |
230 | * A user port exposed to userspace has a slave device. | |
231 | */ | |
232 | union { | |
233 | struct net_device *master; | |
234 | struct net_device *slave; | |
235 | }; | |
236 | ||
357f203b VO |
237 | /* Copy of the tagging protocol operations, for quicker access |
238 | * in the data path. Valid only for the CPU ports. | |
239 | */ | |
15240248 VD |
240 | const struct dsa_device_ops *tag_ops; |
241 | ||
3e41f93b VD |
242 | /* Copies for faster access in master receive hot path */ |
243 | struct dsa_switch_tree *dst; | |
244 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev, | |
245 | struct packet_type *pt); | |
cc1939e4 | 246 | bool (*filter)(const struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 247 | |
057cad2c VD |
248 | enum { |
249 | DSA_PORT_TYPE_UNUSED = 0, | |
250 | DSA_PORT_TYPE_CPU, | |
251 | DSA_PORT_TYPE_DSA, | |
252 | DSA_PORT_TYPE_USER, | |
253 | } type; | |
254 | ||
818be848 VD |
255 | struct dsa_switch *ds; |
256 | unsigned int index; | |
71e0bbde | 257 | const char *name; |
68b2d4a8 | 258 | struct dsa_port *cpu_dp; |
a2c7023f | 259 | const char *mac; |
189b0d93 | 260 | struct device_node *dn; |
34a79f63 | 261 | unsigned int ageing_time; |
33162e9a | 262 | bool vlan_filtering; |
732f794c | 263 | u8 stp_state; |
a5e9a02e | 264 | struct net_device *bridge_dev; |
96567d5d | 265 | struct devlink_port devlink_port; |
3122433e | 266 | bool devlink_port_setup; |
aab9c406 | 267 | struct phylink *pl; |
44cc27e4 | 268 | struct phylink_config pl_config; |
058102a6 TW |
269 | struct net_device *lag_dev; |
270 | bool lag_tx_enabled; | |
18596f50 | 271 | struct net_device *hsr_dev; |
97a69a0d | 272 | |
ab8ccae1 VD |
273 | struct list_head list; |
274 | ||
c362beb0 VO |
275 | /* |
276 | * Give the switch driver somewhere to hang its per-port private data | |
277 | * structures (accessible from the tagger). | |
278 | */ | |
279 | void *priv; | |
280 | ||
67dbb9d4 FF |
281 | /* |
282 | * Original copy of the master netdev ethtool_ops | |
283 | */ | |
67dbb9d4 | 284 | const struct ethtool_ops *orig_ethtool_ops; |
da7b9e9b FF |
285 | |
286 | /* | |
287 | * Original copy of the master netdev net_device_ops | |
288 | */ | |
4cfab356 | 289 | const struct dsa_netdevice_ops *netdev_ops; |
fb35c60c VD |
290 | |
291 | bool setup; | |
c8b09808 AL |
292 | }; |
293 | ||
c5f51765 VD |
294 | /* TODO: ideally DSA ports would have a single dp->link_dp member, |
295 | * and no dst->rtable nor this struct dsa_link would be needed, | |
296 | * but this would require some more complex tree walking, | |
297 | * so keep it stupid at the moment and list them all. | |
298 | */ | |
299 | struct dsa_link { | |
300 | struct dsa_port *dp; | |
301 | struct dsa_port *link_dp; | |
302 | struct list_head list; | |
303 | }; | |
304 | ||
c8f0b869 | 305 | struct dsa_switch { |
fb35c60c VD |
306 | bool setup; |
307 | ||
c33063d6 AL |
308 | struct device *dev; |
309 | ||
c8f0b869 BH |
310 | /* |
311 | * Parent switch tree, and switch index. | |
312 | */ | |
313 | struct dsa_switch_tree *dst; | |
99feaafc | 314 | unsigned int index; |
c8f0b869 | 315 | |
f515f192 VD |
316 | /* Listener for switch fabric events */ |
317 | struct notifier_block nb; | |
318 | ||
7543a6d5 AL |
319 | /* |
320 | * Give the switch driver somewhere to hang its private data | |
321 | * structure. | |
322 | */ | |
323 | void *priv; | |
324 | ||
c8f0b869 BH |
325 | /* |
326 | * Configuration data for this switch. | |
327 | */ | |
ff04955c | 328 | struct dsa_chip_data *cd; |
c8f0b869 BH |
329 | |
330 | /* | |
9d490b4e | 331 | * The switch operations. |
c8f0b869 | 332 | */ |
a82f67af | 333 | const struct dsa_switch_ops *ops; |
c8f0b869 | 334 | |
c8f0b869 BH |
335 | /* |
336 | * Slave mii_bus and devices for the individual ports. | |
337 | */ | |
0d8bcdd3 | 338 | u32 phys_mii_mask; |
c8f0b869 | 339 | struct mii_bus *slave_mii_bus; |
a0c02161 | 340 | |
0f3da6af VD |
341 | /* Ageing Time limits in msecs */ |
342 | unsigned int ageing_time_min; | |
343 | unsigned int ageing_time_max; | |
344 | ||
96567d5d AL |
345 | /* devlink used to represent this switch device */ |
346 | struct devlink *devlink; | |
347 | ||
55199df6 FF |
348 | /* Number of switch port queues */ |
349 | unsigned int num_tx_queues; | |
350 | ||
8f5d16f6 VO |
351 | /* Disallow bridge core from requesting different VLAN awareness |
352 | * settings on ports if not hardware-supported | |
353 | */ | |
354 | bool vlan_filtering_is_global; | |
355 | ||
54a0ed0d RK |
356 | /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges |
357 | * that have vlan_filtering=0. All drivers should ideally set this (and | |
358 | * then the option would get removed), but it is unknown whether this | |
359 | * would break things or not. | |
360 | */ | |
361 | bool configure_vlan_while_not_filtering; | |
362 | ||
1dc0408c FF |
363 | /* If the switch driver always programs the CPU port as egress tagged |
364 | * despite the VLAN configuration indicating otherwise, then setting | |
365 | * @untag_bridge_pvid will force the DSA receive path to pop the bridge's | |
366 | * default_pvid VLAN tagged frames to offer a consistent behavior | |
367 | * between a vlan_filtering=0 and vlan_filtering=1 bridge device. | |
368 | */ | |
369 | bool untag_bridge_pvid; | |
370 | ||
d5f19486 VO |
371 | /* Let DSA manage the FDB entries towards the CPU, based on the |
372 | * software bridge database. | |
373 | */ | |
374 | bool assisted_learning_on_cpu_port; | |
375 | ||
14574676 VO |
376 | /* In case vlan_filtering_is_global is set, the VLAN awareness state |
377 | * should be retrieved from here and not from the per-port settings. | |
378 | */ | |
379 | bool vlan_filtering; | |
380 | ||
787cac3f VO |
381 | /* MAC PCS does not provide link state change interrupt, and requires |
382 | * polling. Flag passed on to PHYLINK. | |
383 | */ | |
384 | bool pcs_poll; | |
385 | ||
bff33f7e VO |
386 | /* For switches that only have the MRU configurable. To ensure the |
387 | * configured MTU is not exceeded, normalization of MRU on all bridged | |
388 | * interfaces is needed. | |
389 | */ | |
390 | bool mtu_enforcement_ingress; | |
391 | ||
058102a6 TW |
392 | /* Drivers that benefit from having an ID associated with each |
393 | * offloaded LAG should set this to the maximum number of | |
394 | * supported IDs. DSA will then maintain a mapping of _at | |
395 | * least_ these many IDs, accessible to drivers via | |
396 | * dsa_lag_id(). | |
397 | */ | |
398 | unsigned int num_lag_ids; | |
399 | ||
a0c02161 | 400 | size_t num_ports; |
c8f0b869 BH |
401 | }; |
402 | ||
68bb8ea8 | 403 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 404 | { |
b96ddf25 | 405 | struct dsa_switch_tree *dst = ds->dst; |
d607525b | 406 | struct dsa_port *dp; |
b96ddf25 VD |
407 | |
408 | list_for_each_entry(dp, &dst->ports, list) | |
409 | if (dp->ds == ds && dp->index == p) | |
d607525b | 410 | return dp; |
b96ddf25 | 411 | |
d607525b | 412 | return NULL; |
c38c5a66 | 413 | } |
bff7b688 | 414 | |
c38c5a66 VD |
415 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
416 | { | |
417 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
418 | } |
419 | ||
c8f0b869 BH |
420 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
421 | { | |
c38c5a66 | 422 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
423 | } |
424 | ||
60045cbf AL |
425 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
426 | { | |
c38c5a66 | 427 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
428 | } |
429 | ||
2b3e9891 | 430 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 431 | { |
c38c5a66 | 432 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
433 | } |
434 | ||
02bc6e54 VD |
435 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
436 | { | |
c38c5a66 VD |
437 | u32 mask = 0; |
438 | int p; | |
02bc6e54 | 439 | |
c38c5a66 VD |
440 | for (p = 0; p < ds->num_ports; p++) |
441 | if (dsa_is_user_port(ds, p)) | |
442 | mask |= BIT(p); | |
443 | ||
444 | return mask; | |
c8652c83 VD |
445 | } |
446 | ||
c5f51765 VD |
447 | /* Return the local port used to reach an arbitrary switch device */ |
448 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) | |
449 | { | |
450 | struct dsa_switch_tree *dst = ds->dst; | |
451 | struct dsa_link *dl; | |
452 | ||
453 | list_for_each_entry(dl, &dst->rtable, list) | |
454 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) | |
455 | return dl->dp->index; | |
456 | ||
457 | return ds->num_ports; | |
458 | } | |
459 | ||
3b8fac5d VD |
460 | /* Return the local port used to reach an arbitrary switch port */ |
461 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
462 | int port) | |
463 | { | |
464 | if (device == ds->index) | |
465 | return port; | |
466 | else | |
c5f51765 | 467 | return dsa_routing_port(ds, device); |
3b8fac5d VD |
468 | } |
469 | ||
470 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 471 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 472 | { |
07073c79 VD |
473 | const struct dsa_port *dp = dsa_to_port(ds, port); |
474 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
475 | ||
476 | if (!cpu_dp) | |
477 | return port; | |
c8f0b869 | 478 | |
3b8fac5d | 479 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
480 | } |
481 | ||
cf2d45f5 VO |
482 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
483 | { | |
484 | const struct dsa_switch *ds = dp->ds; | |
485 | ||
486 | if (ds->vlan_filtering_is_global) | |
487 | return ds->vlan_filtering; | |
488 | else | |
489 | return dp->vlan_filtering; | |
490 | } | |
491 | ||
2bedde1a AS |
492 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
493 | bool is_static, void *data); | |
9d490b4e | 494 | struct dsa_switch_ops { |
53da0eba VO |
495 | /* |
496 | * Tagging protocol helpers called for the CPU ports and DSA links. | |
497 | * @get_tag_protocol retrieves the initial tagging protocol and is | |
498 | * mandatory. Switches which can operate using multiple tagging | |
499 | * protocols should implement @change_tag_protocol and report in | |
500 | * @get_tag_protocol the tagger in current use. | |
501 | */ | |
5ed4e3eb | 502 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
4d776482 FF |
503 | int port, |
504 | enum dsa_tag_protocol mprot); | |
53da0eba VO |
505 | int (*change_tag_protocol)(struct dsa_switch *ds, int port, |
506 | enum dsa_tag_protocol proto); | |
7b314362 | 507 | |
c8f0b869 | 508 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 509 | void (*teardown)(struct dsa_switch *ds); |
6819563e | 510 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
511 | |
512 | /* | |
513 | * Access to the switch's PHY registers. | |
514 | */ | |
515 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
516 | int (*phy_write)(struct dsa_switch *ds, int port, | |
517 | int regnum, u16 val); | |
518 | ||
ec9436ba FF |
519 | /* |
520 | * Link state adjustment (called from libphy) | |
521 | */ | |
522 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
523 | struct phy_device *phydev); | |
ce31b31c FF |
524 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
525 | struct fixed_phy_status *st); | |
ec9436ba | 526 | |
11d8f3dd FF |
527 | /* |
528 | * PHYLINK integration | |
529 | */ | |
530 | void (*phylink_validate)(struct dsa_switch *ds, int port, | |
531 | unsigned long *supported, | |
532 | struct phylink_link_state *state); | |
533 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, | |
534 | struct phylink_link_state *state); | |
535 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
536 | unsigned int mode, | |
537 | const struct phylink_link_state *state); | |
538 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
539 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
540 | unsigned int mode, | |
541 | phy_interface_t interface); | |
542 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
543 | unsigned int mode, | |
544 | phy_interface_t interface, | |
5b502a7b RK |
545 | struct phy_device *phydev, |
546 | int speed, int duplex, | |
547 | bool tx_pause, bool rx_pause); | |
11d8f3dd FF |
548 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, |
549 | struct phylink_link_state *state); | |
c8f0b869 | 550 | /* |
c2ec5f2e | 551 | * Port statistics counters. |
c8f0b869 | 552 | */ |
89f09048 FF |
553 | void (*get_strings)(struct dsa_switch *ds, int port, |
554 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
555 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
556 | int port, uint64_t *data); | |
89f09048 | 557 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
558 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
559 | int port, uint64_t *data); | |
c2ec5f2e OR |
560 | void (*get_stats64)(struct dsa_switch *ds, int port, |
561 | struct rtnl_link_stats64 *s); | |
24462549 | 562 | |
19e57c4e FF |
563 | /* |
564 | * ethtool Wake-on-LAN | |
565 | */ | |
566 | void (*get_wol)(struct dsa_switch *ds, int port, | |
567 | struct ethtool_wolinfo *w); | |
568 | int (*set_wol)(struct dsa_switch *ds, int port, | |
569 | struct ethtool_wolinfo *w); | |
570 | ||
0336369d BS |
571 | /* |
572 | * ethtool timestamp info | |
573 | */ | |
574 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
575 | struct ethtool_ts_info *ts); | |
576 | ||
24462549 FF |
577 | /* |
578 | * Suspend and resume | |
579 | */ | |
580 | int (*suspend)(struct dsa_switch *ds); | |
581 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
582 | |
583 | /* | |
584 | * Port enable/disable | |
585 | */ | |
586 | int (*port_enable)(struct dsa_switch *ds, int port, | |
587 | struct phy_device *phy); | |
75104db0 | 588 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
589 | |
590 | /* | |
08f50061 | 591 | * Port's MAC EEE settings |
7905288f | 592 | */ |
08f50061 VD |
593 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
594 | struct ethtool_eee *e); | |
595 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
596 | struct ethtool_eee *e); | |
51579c3f | 597 | |
6793abb4 GR |
598 | /* EEPROM access */ |
599 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
600 | int (*get_eeprom)(struct dsa_switch *ds, | |
601 | struct ethtool_eeprom *eeprom, u8 *data); | |
602 | int (*set_eeprom)(struct dsa_switch *ds, | |
603 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
604 | |
605 | /* | |
606 | * Register access. | |
607 | */ | |
608 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
609 | void (*get_regs)(struct dsa_switch *ds, int port, | |
610 | struct ethtool_regs *regs, void *p); | |
b73adef6 | 611 | |
e358bef7 VO |
612 | /* |
613 | * Upper device tracking. | |
614 | */ | |
615 | int (*port_prechangeupper)(struct dsa_switch *ds, int port, | |
616 | struct netdev_notifier_changeupper_info *info); | |
617 | ||
b73adef6 FF |
618 | /* |
619 | * Bridge integration | |
620 | */ | |
34a79f63 | 621 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 622 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
a6692754 | 623 | struct net_device *bridge); |
f123f2fb VD |
624 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
625 | struct net_device *bridge); | |
43c44a9f VD |
626 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
627 | u8 state); | |
732f794c | 628 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
57652796 RK |
629 | int (*port_egress_floods)(struct dsa_switch *ds, int port, |
630 | bool unicast, bool multicast); | |
2a778e1b | 631 | |
11149536 VD |
632 | /* |
633 | * VLAN support | |
634 | */ | |
fb2dabad | 635 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
bae33f2b | 636 | bool vlan_filtering); |
1958d581 | 637 | int (*port_vlan_add)(struct dsa_switch *ds, int port, |
80e02360 | 638 | const struct switchdev_obj_port_vlan *vlan); |
76e398a6 VD |
639 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
640 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
641 | /* |
642 | * Forwarding database | |
643 | */ | |
1b6dd556 | 644 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
6c2c1dcb | 645 | const unsigned char *addr, u16 vid); |
2a778e1b | 646 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
6c2c1dcb | 647 | const unsigned char *addr, u16 vid); |
ea70ba98 | 648 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 649 | dsa_fdb_dump_cb_t *cb, void *data); |
8df30255 VD |
650 | |
651 | /* | |
652 | * Multicast database | |
653 | */ | |
a52b2da7 | 654 | int (*port_mdb_add)(struct dsa_switch *ds, int port, |
3709aadc | 655 | const struct switchdev_obj_port_mdb *mdb); |
8df30255 VD |
656 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
657 | const struct switchdev_obj_port_mdb *mdb); | |
bf9f2648 FF |
658 | /* |
659 | * RXNFC | |
660 | */ | |
661 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
662 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
663 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
664 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
665 | |
666 | /* | |
667 | * TC integration | |
668 | */ | |
ed11bb1f VO |
669 | int (*cls_flower_add)(struct dsa_switch *ds, int port, |
670 | struct flow_cls_offload *cls, bool ingress); | |
671 | int (*cls_flower_del)(struct dsa_switch *ds, int port, | |
672 | struct flow_cls_offload *cls, bool ingress); | |
673 | int (*cls_flower_stats)(struct dsa_switch *ds, int port, | |
674 | struct flow_cls_offload *cls, bool ingress); | |
f50f2127 FF |
675 | int (*port_mirror_add)(struct dsa_switch *ds, int port, |
676 | struct dsa_mall_mirror_tc_entry *mirror, | |
677 | bool ingress); | |
678 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
679 | struct dsa_mall_mirror_tc_entry *mirror); | |
34297176 VO |
680 | int (*port_policer_add)(struct dsa_switch *ds, int port, |
681 | struct dsa_mall_policer_tc_entry *policer); | |
682 | void (*port_policer_del)(struct dsa_switch *ds, int port); | |
47d23af2 VO |
683 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
684 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
685 | |
686 | /* | |
687 | * Cross-chip operations | |
688 | */ | |
f66a6a69 VO |
689 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, |
690 | int sw_index, int port, | |
691 | struct net_device *br); | |
692 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, | |
693 | int sw_index, int port, | |
694 | struct net_device *br); | |
058102a6 TW |
695 | int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, |
696 | int port); | |
697 | int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, | |
698 | int port, struct net_device *lag, | |
699 | struct netdev_lag_upper_info *info); | |
700 | int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, | |
701 | int port, struct net_device *lag); | |
0336369d BS |
702 | |
703 | /* | |
704 | * PTP functionality | |
705 | */ | |
706 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
707 | struct ifreq *ifr); | |
708 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
709 | struct ifreq *ifr); | |
90af1059 BS |
710 | bool (*port_txtstamp)(struct dsa_switch *ds, int port, |
711 | struct sk_buff *clone, unsigned int type); | |
712 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, | |
713 | struct sk_buff *skb, unsigned int type); | |
97a69a0d | 714 | |
0f06b855 | 715 | /* Devlink parameters, etc */ |
6b297524 AL |
716 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, |
717 | struct devlink_param_gset_ctx *ctx); | |
718 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, | |
719 | struct devlink_param_gset_ctx *ctx); | |
0f06b855 AL |
720 | int (*devlink_info_get)(struct dsa_switch *ds, |
721 | struct devlink_info_req *req, | |
722 | struct netlink_ext_ack *extack); | |
2a6ef763 VO |
723 | int (*devlink_sb_pool_get)(struct dsa_switch *ds, |
724 | unsigned int sb_index, u16 pool_index, | |
725 | struct devlink_sb_pool_info *pool_info); | |
726 | int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, | |
727 | u16 pool_index, u32 size, | |
728 | enum devlink_sb_threshold_type threshold_type, | |
729 | struct netlink_ext_ack *extack); | |
730 | int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, | |
731 | unsigned int sb_index, u16 pool_index, | |
732 | u32 *p_threshold); | |
733 | int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, | |
734 | unsigned int sb_index, u16 pool_index, | |
735 | u32 threshold, | |
736 | struct netlink_ext_ack *extack); | |
737 | int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, | |
738 | unsigned int sb_index, u16 tc_index, | |
739 | enum devlink_sb_pool_type pool_type, | |
740 | u16 *p_pool_index, u32 *p_threshold); | |
741 | int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, | |
742 | unsigned int sb_index, u16 tc_index, | |
743 | enum devlink_sb_pool_type pool_type, | |
744 | u16 pool_index, u32 threshold, | |
745 | struct netlink_ext_ack *extack); | |
746 | int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, | |
747 | unsigned int sb_index); | |
748 | int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, | |
749 | unsigned int sb_index); | |
750 | int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, | |
751 | unsigned int sb_index, u16 pool_index, | |
752 | u32 *p_cur, u32 *p_max); | |
753 | int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, | |
754 | unsigned int sb_index, u16 tc_index, | |
755 | enum devlink_sb_pool_type pool_type, | |
756 | u32 *p_cur, u32 *p_max); | |
bfcb8132 VO |
757 | |
758 | /* | |
759 | * MTU change functionality. Switches can also adjust their MRU through | |
760 | * this method. By MTU, one understands the SDU (L2 payload) length. | |
761 | * If the switch needs to account for the DSA tag on the CPU port, this | |
ab88d64a | 762 | * method needs to do so privately. |
bfcb8132 VO |
763 | */ |
764 | int (*port_change_mtu)(struct dsa_switch *ds, int port, | |
765 | int new_mtu); | |
766 | int (*port_max_mtu)(struct dsa_switch *ds, int port); | |
058102a6 TW |
767 | |
768 | /* | |
769 | * LAG integration | |
770 | */ | |
771 | int (*port_lag_change)(struct dsa_switch *ds, int port); | |
772 | int (*port_lag_join)(struct dsa_switch *ds, int port, | |
773 | struct net_device *lag, | |
774 | struct netdev_lag_upper_info *info); | |
775 | int (*port_lag_leave)(struct dsa_switch *ds, int port, | |
776 | struct net_device *lag); | |
18596f50 GM |
777 | |
778 | /* | |
779 | * HSR integration | |
780 | */ | |
781 | int (*port_hsr_join)(struct dsa_switch *ds, int port, | |
782 | struct net_device *hsr); | |
783 | int (*port_hsr_leave)(struct dsa_switch *ds, int port, | |
784 | struct net_device *hsr); | |
6b297524 AL |
785 | }; |
786 | ||
787 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ | |
788 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ | |
789 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) | |
790 | ||
791 | int dsa_devlink_param_get(struct devlink *dl, u32 id, | |
792 | struct devlink_param_gset_ctx *ctx); | |
793 | int dsa_devlink_param_set(struct devlink *dl, u32 id, | |
794 | struct devlink_param_gset_ctx *ctx); | |
795 | int dsa_devlink_params_register(struct dsa_switch *ds, | |
796 | const struct devlink_param *params, | |
797 | size_t params_count); | |
798 | void dsa_devlink_params_unregister(struct dsa_switch *ds, | |
799 | const struct devlink_param *params, | |
800 | size_t params_count); | |
5cd73fbd AL |
801 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
802 | const char *resource_name, | |
803 | u64 resource_size, | |
804 | u64 resource_id, | |
805 | u64 parent_resource_id, | |
806 | const struct devlink_resource_size_params *size_params); | |
807 | ||
808 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); | |
809 | ||
810 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, | |
811 | u64 resource_id, | |
812 | devlink_resource_occ_get_t *occ_get, | |
813 | void *occ_get_priv); | |
814 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, | |
815 | u64 resource_id); | |
97c82c23 AL |
816 | struct devlink_region * |
817 | dsa_devlink_region_create(struct dsa_switch *ds, | |
818 | const struct devlink_region_ops *ops, | |
819 | u32 region_max_snapshots, u64 region_size); | |
08156ba4 AL |
820 | struct devlink_region * |
821 | dsa_devlink_port_region_create(struct dsa_switch *ds, | |
822 | int port, | |
823 | const struct devlink_port_region_ops *ops, | |
824 | u32 region_max_snapshots, u64 region_size); | |
97c82c23 AL |
825 | void dsa_devlink_region_destroy(struct devlink_region *region); |
826 | ||
e1eea811 | 827 | struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); |
5cd73fbd | 828 | |
6b297524 AL |
829 | struct dsa_devlink_priv { |
830 | struct dsa_switch *ds; | |
c8f0b869 BH |
831 | }; |
832 | ||
ccc3e6b0 AL |
833 | static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) |
834 | { | |
835 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
836 | ||
837 | return dl_priv->ds; | |
838 | } | |
839 | ||
7d1e2a10 AL |
840 | static inline |
841 | struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) | |
842 | { | |
843 | struct devlink *dl = port->devlink; | |
844 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
845 | ||
846 | return dl_priv->ds; | |
847 | } | |
848 | ||
849 | static inline int dsa_devlink_port_to_port(struct devlink_port *port) | |
850 | { | |
851 | return port->index; | |
852 | } | |
853 | ||
ab3d408d FF |
854 | struct dsa_switch_driver { |
855 | struct list_head list; | |
a82f67af | 856 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
857 | }; |
858 | ||
14b89f36 | 859 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 860 | |
73a7ece8 | 861 | /* Keep inline for faster access in hot path */ |
9eb8eff0 | 862 | static inline bool netdev_uses_dsa(const struct net_device *dev) |
c6e970a0 AL |
863 | { |
864 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 865 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
866 | #endif |
867 | return false; | |
868 | } | |
869 | ||
cc1939e4 VO |
870 | static inline bool dsa_can_decode(const struct sk_buff *skb, |
871 | struct net_device *dev) | |
872 | { | |
873 | #if IS_ENABLED(CONFIG_NET_DSA) | |
874 | return !dev->dsa_ptr->filter || dev->dsa_ptr->filter(skb, dev); | |
875 | #endif | |
876 | return false; | |
877 | } | |
878 | ||
9790cf20 VO |
879 | /* All DSA tags that push the EtherType to the right (basically all except tail |
880 | * tags, which don't break dissection) can be treated the same from the | |
881 | * perspective of the flow dissector. | |
882 | * | |
883 | * We need to return: | |
884 | * - offset: the (B - A) difference between: | |
885 | * A. the position of the real EtherType and | |
886 | * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes | |
887 | * after the normal EtherType was supposed to be) | |
888 | * The offset in bytes is exactly equal to the tagger overhead (and half of | |
889 | * that, in __be16 shorts). | |
890 | * | |
891 | * - proto: the value of the real EtherType. | |
892 | */ | |
893 | static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, | |
894 | __be16 *proto, int *offset) | |
895 | { | |
896 | #if IS_ENABLED(CONFIG_NET_DSA) | |
897 | const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; | |
898 | int tag_len = ops->overhead; | |
899 | ||
900 | *offset = tag_len; | |
901 | *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; | |
902 | #endif | |
903 | } | |
904 | ||
4cfab356 FF |
905 | #if IS_ENABLED(CONFIG_NET_DSA) |
906 | static inline int __dsa_netdevice_ops_check(struct net_device *dev) | |
907 | { | |
908 | int err = -EOPNOTSUPP; | |
909 | ||
910 | if (!dev->dsa_ptr) | |
911 | return err; | |
912 | ||
913 | if (!dev->dsa_ptr->netdev_ops) | |
914 | return err; | |
915 | ||
916 | return 0; | |
917 | } | |
918 | ||
919 | static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, | |
920 | int cmd) | |
921 | { | |
922 | const struct dsa_netdevice_ops *ops; | |
923 | int err; | |
924 | ||
925 | err = __dsa_netdevice_ops_check(dev); | |
926 | if (err) | |
927 | return err; | |
928 | ||
929 | ops = dev->dsa_ptr->netdev_ops; | |
930 | ||
931 | return ops->ndo_do_ioctl(dev, ifr, cmd); | |
932 | } | |
4cfab356 FF |
933 | #else |
934 | static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, | |
935 | int cmd) | |
936 | { | |
937 | return -EOPNOTSUPP; | |
938 | } | |
4cfab356 FF |
939 | #endif |
940 | ||
83c0afae | 941 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 942 | int dsa_register_switch(struct dsa_switch *ds); |
3b7bc1f0 | 943 | struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |
ea825e70 FF |
944 | #ifdef CONFIG_PM_SLEEP |
945 | int dsa_switch_suspend(struct dsa_switch *ds); | |
946 | int dsa_switch_resume(struct dsa_switch *ds); | |
947 | #else | |
948 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
949 | { | |
950 | return 0; | |
951 | } | |
952 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
953 | { | |
954 | return 0; | |
955 | } | |
956 | #endif /* CONFIG_PM_SLEEP */ | |
957 | ||
60724d4b | 958 | #if IS_ENABLED(CONFIG_NET_DSA) |
a5e3c9ba | 959 | bool dsa_slave_dev_check(const struct net_device *dev); |
60724d4b | 960 | #else |
a5e3c9ba VO |
961 | static inline bool dsa_slave_dev_check(const struct net_device *dev) |
962 | { | |
963 | return false; | |
964 | } | |
60724d4b FF |
965 | #endif |
966 | ||
97a69a0d | 967 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
cf963573 FF |
968 | int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); |
969 | int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); | |
970 | int dsa_port_get_phy_sset_count(struct dsa_port *dp); | |
11d8f3dd | 971 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 972 | |
d3b8c049 AL |
973 | struct dsa_tag_driver { |
974 | const struct dsa_device_ops *ops; | |
975 | struct list_head list; | |
976 | struct module *owner; | |
977 | }; | |
978 | ||
979 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
980 | unsigned int count, | |
981 | struct module *owner); | |
982 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
983 | unsigned int count); | |
984 | ||
985 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
986 | static int __init dsa_tag_driver_module_init(void) \ | |
987 | { \ | |
988 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
989 | THIS_MODULE); \ | |
990 | return 0; \ | |
991 | } \ | |
992 | module_init(dsa_tag_driver_module_init); \ | |
993 | \ | |
994 | static void __exit dsa_tag_driver_module_exit(void) \ | |
995 | { \ | |
996 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
997 | } \ | |
998 | module_exit(dsa_tag_driver_module_exit) | |
999 | ||
1000 | /** | |
1001 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
1002 | * drivers | |
1003 | * @__ops_array: Array of tag driver strucutres | |
1004 | * | |
1005 | * Helper macro for DSA tag drivers which do not do anything special | |
1006 | * in module init/exit. Each module may only use this macro once, and | |
1007 | * calling it replaces module_init() and module_exit(). | |
1008 | */ | |
1009 | #define module_dsa_tag_drivers(__ops_array) \ | |
1010 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
1011 | ||
1012 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
1013 | ||
1014 | /* Create a static structure we can build a linked list of dsa_tag | |
1015 | * drivers | |
1016 | */ | |
1017 | #define DSA_TAG_DRIVER(__ops) \ | |
1018 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
1019 | .ops = &__ops, \ | |
1020 | } | |
1021 | ||
1022 | /** | |
1023 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
1024 | * driver | |
1025 | * @__ops: Single tag driver structures | |
1026 | * | |
1027 | * Helper macro for DSA tag drivers which do not do anything special | |
1028 | * in module init/exit. Each module may only use this macro once, and | |
1029 | * calling it replaces module_init() and module_exit(). | |
1030 | */ | |
1031 | #define module_dsa_tag_driver(__ops) \ | |
1032 | DSA_TAG_DRIVER(__ops); \ | |
1033 | \ | |
1034 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
1035 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
1036 | }; \ | |
1037 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 1038 | #endif |
d3b8c049 | 1039 |