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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 |
7c4bb540 | 51 | #define DSA_TAG_PROTO_SEVILLE_VALUE 21 |
964dbf18 | 52 | #define DSA_TAG_PROTO_BRCM_LEGACY_VALUE 22 |
4913b8eb | 53 | #define DSA_TAG_PROTO_SJA1110_VALUE 23 |
0b42f033 | 54 | |
ac7a04c3 | 55 | enum dsa_tag_protocol { |
0b42f033 AL |
56 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
57 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, | |
964dbf18 | 58 | DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, |
0b42f033 AL |
59 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, |
60 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, | |
61 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, | |
62 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, | |
63 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, | |
64 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, | |
65 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, | |
66 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, | |
67 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, | |
68 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, | |
f9bbe447 | 69 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
227d07a0 | 70 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
016e43a2 | 71 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
8dce89aa | 72 | DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, |
48fda74f | 73 | DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, |
efd7fe68 | 74 | DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, |
01ef09ca | 75 | DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, |
54a52823 | 76 | DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, |
7c83a7c5 | 77 | DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, |
7c4bb540 | 78 | DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, |
4913b8eb | 79 | DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, |
ac7a04c3 | 80 | }; |
5037d532 | 81 | |
90af1059 | 82 | struct dsa_switch; |
3e8a72d1 | 83 | |
68277a2c JC |
84 | struct dsa_device_ops { |
85 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
29a097b7 | 86 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
2e8cb1b3 VO |
87 | void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
88 | int *offset); | |
4e500251 VO |
89 | unsigned int needed_headroom; |
90 | unsigned int needed_tailroom; | |
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; | |
68277a2c JC |
99 | }; |
100 | ||
4cfab356 FF |
101 | /* This structure defines the control interfaces that are overlayed by the |
102 | * DSA layer on top of the DSA CPU/management net_device instance. This is | |
103 | * used by the core net_device layer while calling various net_device_ops | |
104 | * function pointers. | |
105 | */ | |
106 | struct dsa_netdevice_ops { | |
a7605370 AB |
107 | int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, |
108 | int cmd); | |
4cfab356 FF |
109 | }; |
110 | ||
0b42f033 AL |
111 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
112 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
113 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
114 | ||
cf50dcc2 | 115 | struct dsa_switch_tree { |
83c0afae AL |
116 | struct list_head list; |
117 | ||
f515f192 VD |
118 | /* Notifier chain for switch-wide events */ |
119 | struct raw_notifier_head nh; | |
120 | ||
83c0afae | 121 | /* Tree identifier */ |
49463b7f | 122 | unsigned int index; |
83c0afae AL |
123 | |
124 | /* Number of switches attached to this tree */ | |
125 | struct kref refcount; | |
126 | ||
127 | /* Has this tree been applied to the hardware? */ | |
ec15dd42 | 128 | bool setup; |
83c0afae | 129 | |
357f203b VO |
130 | /* Tagging protocol operations */ |
131 | const struct dsa_device_ops *tag_ops; | |
132 | ||
deff7107 TW |
133 | /* Default tagging protocol preferred by the switches in this |
134 | * tree. | |
135 | */ | |
136 | enum dsa_tag_protocol default_proto; | |
137 | ||
cf50dcc2 BH |
138 | /* |
139 | * Configuration data for the platform device that owns | |
140 | * this dsa switch tree instance. | |
141 | */ | |
142 | struct dsa_platform_data *pd; | |
143 | ||
ab8ccae1 VD |
144 | /* List of switch ports */ |
145 | struct list_head ports; | |
146 | ||
c5f51765 VD |
147 | /* List of DSA links composing the routing table */ |
148 | struct list_head rtable; | |
058102a6 TW |
149 | |
150 | /* Maps offloaded LAG netdevs to a zero-based linear ID for | |
151 | * drivers that need it. | |
152 | */ | |
153 | struct net_device **lags; | |
154 | unsigned int lags_len; | |
5b22d366 VO |
155 | |
156 | /* Track the largest switch index within a tree */ | |
157 | unsigned int last_switch; | |
123abc06 VO |
158 | |
159 | /* Track the bridges with forwarding offload enabled */ | |
160 | unsigned long fwd_offloading_bridges; | |
cf50dcc2 BH |
161 | }; |
162 | ||
058102a6 TW |
163 | #define dsa_lags_foreach_id(_id, _dst) \ |
164 | for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ | |
165 | if ((_dst)->lags[(_id)]) | |
166 | ||
167 | #define dsa_lag_foreach_port(_dp, _dst, _lag) \ | |
168 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
169 | if ((_dp)->lag_dev == (_lag)) | |
170 | ||
18596f50 GM |
171 | #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ |
172 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
173 | if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) | |
174 | ||
058102a6 TW |
175 | static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, |
176 | unsigned int id) | |
177 | { | |
178 | return dst->lags[id]; | |
179 | } | |
180 | ||
181 | static inline int dsa_lag_id(struct dsa_switch_tree *dst, | |
182 | struct net_device *lag) | |
183 | { | |
184 | unsigned int id; | |
185 | ||
186 | dsa_lags_foreach_id(id, dst) { | |
187 | if (dsa_lag_dev(dst, id) == lag) | |
188 | return id; | |
189 | } | |
190 | ||
191 | return -ENODEV; | |
192 | } | |
193 | ||
34297176 | 194 | /* TC matchall action types */ |
f50f2127 FF |
195 | enum dsa_port_mall_action_type { |
196 | DSA_PORT_MALL_MIRROR, | |
34297176 | 197 | DSA_PORT_MALL_POLICER, |
f50f2127 FF |
198 | }; |
199 | ||
200 | /* TC mirroring entry */ | |
201 | struct dsa_mall_mirror_tc_entry { | |
202 | u8 to_local_port; | |
203 | bool ingress; | |
204 | }; | |
205 | ||
34297176 VO |
206 | /* TC port policer entry */ |
207 | struct dsa_mall_policer_tc_entry { | |
5f035af7 | 208 | u32 burst; |
34297176 VO |
209 | u64 rate_bytes_per_sec; |
210 | }; | |
211 | ||
f50f2127 FF |
212 | /* TC matchall entry */ |
213 | struct dsa_mall_tc_entry { | |
214 | struct list_head list; | |
215 | unsigned long cookie; | |
216 | enum dsa_port_mall_action_type type; | |
217 | union { | |
218 | struct dsa_mall_mirror_tc_entry mirror; | |
34297176 | 219 | struct dsa_mall_policer_tc_entry policer; |
f50f2127 FF |
220 | }; |
221 | }; | |
222 | ||
223 | ||
c8b09808 | 224 | struct dsa_port { |
f8b8b1cd VD |
225 | /* A CPU port is physically connected to a master device. |
226 | * A user port exposed to userspace has a slave device. | |
227 | */ | |
228 | union { | |
229 | struct net_device *master; | |
230 | struct net_device *slave; | |
231 | }; | |
232 | ||
357f203b VO |
233 | /* Copy of the tagging protocol operations, for quicker access |
234 | * in the data path. Valid only for the CPU ports. | |
235 | */ | |
15240248 VD |
236 | const struct dsa_device_ops *tag_ops; |
237 | ||
3e41f93b VD |
238 | /* Copies for faster access in master receive hot path */ |
239 | struct dsa_switch_tree *dst; | |
29a097b7 | 240 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 241 | |
057cad2c VD |
242 | enum { |
243 | DSA_PORT_TYPE_UNUSED = 0, | |
244 | DSA_PORT_TYPE_CPU, | |
245 | DSA_PORT_TYPE_DSA, | |
246 | DSA_PORT_TYPE_USER, | |
247 | } type; | |
248 | ||
818be848 VD |
249 | struct dsa_switch *ds; |
250 | unsigned int index; | |
71e0bbde | 251 | const char *name; |
68b2d4a8 | 252 | struct dsa_port *cpu_dp; |
83216e39 | 253 | u8 mac[ETH_ALEN]; |
189b0d93 | 254 | struct device_node *dn; |
34a79f63 | 255 | unsigned int ageing_time; |
33162e9a | 256 | bool vlan_filtering; |
045c45d1 | 257 | bool learning; |
732f794c | 258 | u8 stp_state; |
a5e9a02e | 259 | struct net_device *bridge_dev; |
123abc06 | 260 | int bridge_num; |
96567d5d | 261 | struct devlink_port devlink_port; |
3122433e | 262 | bool devlink_port_setup; |
aab9c406 | 263 | struct phylink *pl; |
44cc27e4 | 264 | struct phylink_config pl_config; |
058102a6 TW |
265 | struct net_device *lag_dev; |
266 | bool lag_tx_enabled; | |
18596f50 | 267 | struct net_device *hsr_dev; |
97a69a0d | 268 | |
ab8ccae1 VD |
269 | struct list_head list; |
270 | ||
c362beb0 VO |
271 | /* |
272 | * Give the switch driver somewhere to hang its per-port private data | |
273 | * structures (accessible from the tagger). | |
274 | */ | |
275 | void *priv; | |
276 | ||
67dbb9d4 FF |
277 | /* |
278 | * Original copy of the master netdev ethtool_ops | |
279 | */ | |
67dbb9d4 | 280 | const struct ethtool_ops *orig_ethtool_ops; |
da7b9e9b FF |
281 | |
282 | /* | |
283 | * Original copy of the master netdev net_device_ops | |
284 | */ | |
4cfab356 | 285 | const struct dsa_netdevice_ops *netdev_ops; |
fb35c60c | 286 | |
161ca59d VO |
287 | /* List of MAC addresses that must be forwarded on this port. |
288 | * These are only valid on CPU ports and DSA links. | |
289 | */ | |
3f6e32f9 | 290 | struct list_head fdbs; |
161ca59d VO |
291 | struct list_head mdbs; |
292 | ||
fb35c60c | 293 | bool setup; |
c8b09808 AL |
294 | }; |
295 | ||
c5f51765 VD |
296 | /* TODO: ideally DSA ports would have a single dp->link_dp member, |
297 | * and no dst->rtable nor this struct dsa_link would be needed, | |
298 | * but this would require some more complex tree walking, | |
299 | * so keep it stupid at the moment and list them all. | |
300 | */ | |
301 | struct dsa_link { | |
302 | struct dsa_port *dp; | |
303 | struct dsa_port *link_dp; | |
304 | struct list_head list; | |
305 | }; | |
306 | ||
161ca59d VO |
307 | struct dsa_mac_addr { |
308 | unsigned char addr[ETH_ALEN]; | |
309 | u16 vid; | |
310 | refcount_t refcount; | |
311 | struct list_head list; | |
312 | }; | |
313 | ||
c8f0b869 | 314 | struct dsa_switch { |
fb35c60c VD |
315 | bool setup; |
316 | ||
c33063d6 AL |
317 | struct device *dev; |
318 | ||
c8f0b869 BH |
319 | /* |
320 | * Parent switch tree, and switch index. | |
321 | */ | |
322 | struct dsa_switch_tree *dst; | |
99feaafc | 323 | unsigned int index; |
c8f0b869 | 324 | |
f515f192 VD |
325 | /* Listener for switch fabric events */ |
326 | struct notifier_block nb; | |
327 | ||
7543a6d5 AL |
328 | /* |
329 | * Give the switch driver somewhere to hang its private data | |
330 | * structure. | |
331 | */ | |
332 | void *priv; | |
333 | ||
c8f0b869 BH |
334 | /* |
335 | * Configuration data for this switch. | |
336 | */ | |
ff04955c | 337 | struct dsa_chip_data *cd; |
c8f0b869 BH |
338 | |
339 | /* | |
9d490b4e | 340 | * The switch operations. |
c8f0b869 | 341 | */ |
a82f67af | 342 | const struct dsa_switch_ops *ops; |
c8f0b869 | 343 | |
c8f0b869 BH |
344 | /* |
345 | * Slave mii_bus and devices for the individual ports. | |
346 | */ | |
0d8bcdd3 | 347 | u32 phys_mii_mask; |
c8f0b869 | 348 | struct mii_bus *slave_mii_bus; |
a0c02161 | 349 | |
0f3da6af VD |
350 | /* Ageing Time limits in msecs */ |
351 | unsigned int ageing_time_min; | |
352 | unsigned int ageing_time_max; | |
353 | ||
d7b1fd52 VO |
354 | /* Storage for drivers using tag_8021q */ |
355 | struct dsa_8021q_context *tag_8021q_ctx; | |
356 | ||
96567d5d AL |
357 | /* devlink used to represent this switch device */ |
358 | struct devlink *devlink; | |
359 | ||
55199df6 FF |
360 | /* Number of switch port queues */ |
361 | unsigned int num_tx_queues; | |
362 | ||
8f5d16f6 VO |
363 | /* Disallow bridge core from requesting different VLAN awareness |
364 | * settings on ports if not hardware-supported | |
365 | */ | |
366 | bool vlan_filtering_is_global; | |
367 | ||
54a0ed0d RK |
368 | /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges |
369 | * that have vlan_filtering=0. All drivers should ideally set this (and | |
370 | * then the option would get removed), but it is unknown whether this | |
371 | * would break things or not. | |
372 | */ | |
373 | bool configure_vlan_while_not_filtering; | |
374 | ||
1dc0408c FF |
375 | /* If the switch driver always programs the CPU port as egress tagged |
376 | * despite the VLAN configuration indicating otherwise, then setting | |
377 | * @untag_bridge_pvid will force the DSA receive path to pop the bridge's | |
378 | * default_pvid VLAN tagged frames to offer a consistent behavior | |
379 | * between a vlan_filtering=0 and vlan_filtering=1 bridge device. | |
380 | */ | |
381 | bool untag_bridge_pvid; | |
382 | ||
d5f19486 VO |
383 | /* Let DSA manage the FDB entries towards the CPU, based on the |
384 | * software bridge database. | |
385 | */ | |
386 | bool assisted_learning_on_cpu_port; | |
387 | ||
14574676 VO |
388 | /* In case vlan_filtering_is_global is set, the VLAN awareness state |
389 | * should be retrieved from here and not from the per-port settings. | |
390 | */ | |
391 | bool vlan_filtering; | |
392 | ||
787cac3f VO |
393 | /* MAC PCS does not provide link state change interrupt, and requires |
394 | * polling. Flag passed on to PHYLINK. | |
395 | */ | |
396 | bool pcs_poll; | |
397 | ||
bff33f7e VO |
398 | /* For switches that only have the MRU configurable. To ensure the |
399 | * configured MTU is not exceeded, normalization of MRU on all bridged | |
400 | * interfaces is needed. | |
401 | */ | |
402 | bool mtu_enforcement_ingress; | |
403 | ||
058102a6 TW |
404 | /* Drivers that benefit from having an ID associated with each |
405 | * offloaded LAG should set this to the maximum number of | |
406 | * supported IDs. DSA will then maintain a mapping of _at | |
407 | * least_ these many IDs, accessible to drivers via | |
408 | * dsa_lag_id(). | |
409 | */ | |
410 | unsigned int num_lag_ids; | |
411 | ||
123abc06 VO |
412 | /* Drivers that support bridge forwarding offload should set this to |
413 | * the maximum number of bridges spanning the same switch tree that can | |
414 | * be offloaded. | |
415 | */ | |
416 | unsigned int num_fwd_offloading_bridges; | |
417 | ||
a0c02161 | 418 | size_t num_ports; |
c8f0b869 BH |
419 | }; |
420 | ||
68bb8ea8 | 421 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 422 | { |
b96ddf25 | 423 | struct dsa_switch_tree *dst = ds->dst; |
d607525b | 424 | struct dsa_port *dp; |
b96ddf25 VD |
425 | |
426 | list_for_each_entry(dp, &dst->ports, list) | |
427 | if (dp->ds == ds && dp->index == p) | |
d607525b | 428 | return dp; |
b96ddf25 | 429 | |
d607525b | 430 | return NULL; |
c38c5a66 | 431 | } |
bff7b688 | 432 | |
a8986681 VO |
433 | static inline bool dsa_port_is_dsa(struct dsa_port *port) |
434 | { | |
435 | return port->type == DSA_PORT_TYPE_DSA; | |
436 | } | |
437 | ||
438 | static inline bool dsa_port_is_cpu(struct dsa_port *port) | |
439 | { | |
440 | return port->type == DSA_PORT_TYPE_CPU; | |
441 | } | |
442 | ||
443 | static inline bool dsa_port_is_user(struct dsa_port *dp) | |
444 | { | |
445 | return dp->type == DSA_PORT_TYPE_USER; | |
446 | } | |
447 | ||
c38c5a66 VD |
448 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
449 | { | |
450 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
451 | } |
452 | ||
c8f0b869 BH |
453 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
454 | { | |
c38c5a66 | 455 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
456 | } |
457 | ||
60045cbf AL |
458 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
459 | { | |
c38c5a66 | 460 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
461 | } |
462 | ||
2b3e9891 | 463 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 464 | { |
c38c5a66 | 465 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
466 | } |
467 | ||
02bc6e54 VD |
468 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
469 | { | |
c38c5a66 VD |
470 | u32 mask = 0; |
471 | int p; | |
02bc6e54 | 472 | |
c38c5a66 VD |
473 | for (p = 0; p < ds->num_ports; p++) |
474 | if (dsa_is_user_port(ds, p)) | |
475 | mask |= BIT(p); | |
476 | ||
477 | return mask; | |
c8652c83 VD |
478 | } |
479 | ||
c5f51765 VD |
480 | /* Return the local port used to reach an arbitrary switch device */ |
481 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) | |
482 | { | |
483 | struct dsa_switch_tree *dst = ds->dst; | |
484 | struct dsa_link *dl; | |
485 | ||
486 | list_for_each_entry(dl, &dst->rtable, list) | |
487 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) | |
488 | return dl->dp->index; | |
489 | ||
490 | return ds->num_ports; | |
491 | } | |
492 | ||
3b8fac5d VD |
493 | /* Return the local port used to reach an arbitrary switch port */ |
494 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
495 | int port) | |
496 | { | |
497 | if (device == ds->index) | |
498 | return port; | |
499 | else | |
c5f51765 | 500 | return dsa_routing_port(ds, device); |
3b8fac5d VD |
501 | } |
502 | ||
503 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 504 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 505 | { |
07073c79 VD |
506 | const struct dsa_port *dp = dsa_to_port(ds, port); |
507 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
508 | ||
509 | if (!cpu_dp) | |
510 | return port; | |
c8f0b869 | 511 | |
3b8fac5d | 512 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
513 | } |
514 | ||
63609c8f VO |
515 | /* Return true if this is the local port used to reach the CPU port */ |
516 | static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) | |
517 | { | |
518 | if (dsa_is_unused_port(ds, port)) | |
519 | return false; | |
520 | ||
521 | return port == dsa_upstream_port(ds, port); | |
522 | } | |
523 | ||
524 | /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning | |
525 | * that the routing port from @downstream_ds to @upstream_ds is also the port | |
526 | * which @downstream_ds uses to reach its dedicated CPU. | |
527 | */ | |
528 | static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, | |
529 | struct dsa_switch *downstream_ds) | |
530 | { | |
531 | int routing_port; | |
532 | ||
533 | if (upstream_ds == downstream_ds) | |
534 | return true; | |
535 | ||
536 | routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); | |
537 | ||
538 | return dsa_is_upstream_port(downstream_ds, routing_port); | |
539 | } | |
540 | ||
cf2d45f5 VO |
541 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
542 | { | |
543 | const struct dsa_switch *ds = dp->ds; | |
544 | ||
545 | if (ds->vlan_filtering_is_global) | |
546 | return ds->vlan_filtering; | |
547 | else | |
548 | return dp->vlan_filtering; | |
549 | } | |
550 | ||
cc76ce9e TW |
551 | static inline |
552 | struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) | |
553 | { | |
554 | if (!dp->bridge_dev) | |
555 | return NULL; | |
556 | ||
557 | if (dp->lag_dev) | |
558 | return dp->lag_dev; | |
559 | else if (dp->hsr_dev) | |
560 | return dp->hsr_dev; | |
561 | ||
562 | return dp->slave; | |
563 | } | |
564 | ||
2bedde1a AS |
565 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
566 | bool is_static, void *data); | |
9d490b4e | 567 | struct dsa_switch_ops { |
53da0eba VO |
568 | /* |
569 | * Tagging protocol helpers called for the CPU ports and DSA links. | |
570 | * @get_tag_protocol retrieves the initial tagging protocol and is | |
571 | * mandatory. Switches which can operate using multiple tagging | |
572 | * protocols should implement @change_tag_protocol and report in | |
573 | * @get_tag_protocol the tagger in current use. | |
574 | */ | |
5ed4e3eb | 575 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
4d776482 FF |
576 | int port, |
577 | enum dsa_tag_protocol mprot); | |
53da0eba VO |
578 | int (*change_tag_protocol)(struct dsa_switch *ds, int port, |
579 | enum dsa_tag_protocol proto); | |
7b314362 | 580 | |
c8f0b869 | 581 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 582 | void (*teardown)(struct dsa_switch *ds); |
6819563e | 583 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
584 | |
585 | /* | |
586 | * Access to the switch's PHY registers. | |
587 | */ | |
588 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
589 | int (*phy_write)(struct dsa_switch *ds, int port, | |
590 | int regnum, u16 val); | |
591 | ||
ec9436ba FF |
592 | /* |
593 | * Link state adjustment (called from libphy) | |
594 | */ | |
595 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
596 | struct phy_device *phydev); | |
ce31b31c FF |
597 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
598 | struct fixed_phy_status *st); | |
ec9436ba | 599 | |
11d8f3dd FF |
600 | /* |
601 | * PHYLINK integration | |
602 | */ | |
603 | void (*phylink_validate)(struct dsa_switch *ds, int port, | |
604 | unsigned long *supported, | |
605 | struct phylink_link_state *state); | |
606 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, | |
607 | struct phylink_link_state *state); | |
608 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
609 | unsigned int mode, | |
610 | const struct phylink_link_state *state); | |
611 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
612 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
613 | unsigned int mode, | |
614 | phy_interface_t interface); | |
615 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
616 | unsigned int mode, | |
617 | phy_interface_t interface, | |
5b502a7b RK |
618 | struct phy_device *phydev, |
619 | int speed, int duplex, | |
620 | bool tx_pause, bool rx_pause); | |
11d8f3dd FF |
621 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, |
622 | struct phylink_link_state *state); | |
c8f0b869 | 623 | /* |
c2ec5f2e | 624 | * Port statistics counters. |
c8f0b869 | 625 | */ |
89f09048 FF |
626 | void (*get_strings)(struct dsa_switch *ds, int port, |
627 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
628 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
629 | int port, uint64_t *data); | |
89f09048 | 630 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
631 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
632 | int port, uint64_t *data); | |
c2ec5f2e OR |
633 | void (*get_stats64)(struct dsa_switch *ds, int port, |
634 | struct rtnl_link_stats64 *s); | |
a71acad9 OR |
635 | void (*self_test)(struct dsa_switch *ds, int port, |
636 | struct ethtool_test *etest, u64 *data); | |
24462549 | 637 | |
19e57c4e FF |
638 | /* |
639 | * ethtool Wake-on-LAN | |
640 | */ | |
641 | void (*get_wol)(struct dsa_switch *ds, int port, | |
642 | struct ethtool_wolinfo *w); | |
643 | int (*set_wol)(struct dsa_switch *ds, int port, | |
644 | struct ethtool_wolinfo *w); | |
645 | ||
0336369d BS |
646 | /* |
647 | * ethtool timestamp info | |
648 | */ | |
649 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
650 | struct ethtool_ts_info *ts); | |
651 | ||
24462549 FF |
652 | /* |
653 | * Suspend and resume | |
654 | */ | |
655 | int (*suspend)(struct dsa_switch *ds); | |
656 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
657 | |
658 | /* | |
659 | * Port enable/disable | |
660 | */ | |
661 | int (*port_enable)(struct dsa_switch *ds, int port, | |
662 | struct phy_device *phy); | |
75104db0 | 663 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
664 | |
665 | /* | |
08f50061 | 666 | * Port's MAC EEE settings |
7905288f | 667 | */ |
08f50061 VD |
668 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
669 | struct ethtool_eee *e); | |
670 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
671 | struct ethtool_eee *e); | |
51579c3f | 672 | |
6793abb4 GR |
673 | /* EEPROM access */ |
674 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
675 | int (*get_eeprom)(struct dsa_switch *ds, | |
676 | struct ethtool_eeprom *eeprom, u8 *data); | |
677 | int (*set_eeprom)(struct dsa_switch *ds, | |
678 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
679 | |
680 | /* | |
681 | * Register access. | |
682 | */ | |
683 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
684 | void (*get_regs)(struct dsa_switch *ds, int port, | |
685 | struct ethtool_regs *regs, void *p); | |
b73adef6 | 686 | |
e358bef7 VO |
687 | /* |
688 | * Upper device tracking. | |
689 | */ | |
690 | int (*port_prechangeupper)(struct dsa_switch *ds, int port, | |
691 | struct netdev_notifier_changeupper_info *info); | |
692 | ||
b73adef6 FF |
693 | /* |
694 | * Bridge integration | |
695 | */ | |
34a79f63 | 696 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 697 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
a6692754 | 698 | struct net_device *bridge); |
f123f2fb VD |
699 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
700 | struct net_device *bridge); | |
123abc06 VO |
701 | /* Called right after .port_bridge_join() */ |
702 | int (*port_bridge_tx_fwd_offload)(struct dsa_switch *ds, int port, | |
703 | struct net_device *bridge, | |
704 | int bridge_num); | |
705 | /* Called right before .port_bridge_leave() */ | |
706 | void (*port_bridge_tx_fwd_unoffload)(struct dsa_switch *ds, int port, | |
707 | struct net_device *bridge, | |
708 | int bridge_num); | |
43c44a9f VD |
709 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
710 | u8 state); | |
732f794c | 711 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
a8b659e7 VO |
712 | int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, |
713 | struct switchdev_brport_flags flags, | |
714 | struct netlink_ext_ack *extack); | |
715 | int (*port_bridge_flags)(struct dsa_switch *ds, int port, | |
716 | struct switchdev_brport_flags flags, | |
717 | struct netlink_ext_ack *extack); | |
2a778e1b | 718 | |
11149536 VD |
719 | /* |
720 | * VLAN support | |
721 | */ | |
fb2dabad | 722 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
89153ed6 VO |
723 | bool vlan_filtering, |
724 | struct netlink_ext_ack *extack); | |
1958d581 | 725 | int (*port_vlan_add)(struct dsa_switch *ds, int port, |
31046a5f VO |
726 | const struct switchdev_obj_port_vlan *vlan, |
727 | struct netlink_ext_ack *extack); | |
76e398a6 VD |
728 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
729 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
730 | /* |
731 | * Forwarding database | |
732 | */ | |
1b6dd556 | 733 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
6c2c1dcb | 734 | const unsigned char *addr, u16 vid); |
2a778e1b | 735 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
6c2c1dcb | 736 | const unsigned char *addr, u16 vid); |
ea70ba98 | 737 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 738 | dsa_fdb_dump_cb_t *cb, void *data); |
8df30255 VD |
739 | |
740 | /* | |
741 | * Multicast database | |
742 | */ | |
a52b2da7 | 743 | int (*port_mdb_add)(struct dsa_switch *ds, int port, |
3709aadc | 744 | const struct switchdev_obj_port_mdb *mdb); |
8df30255 VD |
745 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
746 | const struct switchdev_obj_port_mdb *mdb); | |
bf9f2648 FF |
747 | /* |
748 | * RXNFC | |
749 | */ | |
750 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
751 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
752 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
753 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
754 | |
755 | /* | |
756 | * TC integration | |
757 | */ | |
ed11bb1f VO |
758 | int (*cls_flower_add)(struct dsa_switch *ds, int port, |
759 | struct flow_cls_offload *cls, bool ingress); | |
760 | int (*cls_flower_del)(struct dsa_switch *ds, int port, | |
761 | struct flow_cls_offload *cls, bool ingress); | |
762 | int (*cls_flower_stats)(struct dsa_switch *ds, int port, | |
763 | struct flow_cls_offload *cls, bool ingress); | |
f50f2127 FF |
764 | int (*port_mirror_add)(struct dsa_switch *ds, int port, |
765 | struct dsa_mall_mirror_tc_entry *mirror, | |
766 | bool ingress); | |
767 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
768 | struct dsa_mall_mirror_tc_entry *mirror); | |
34297176 VO |
769 | int (*port_policer_add)(struct dsa_switch *ds, int port, |
770 | struct dsa_mall_policer_tc_entry *policer); | |
771 | void (*port_policer_del)(struct dsa_switch *ds, int port); | |
47d23af2 VO |
772 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
773 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
774 | |
775 | /* | |
776 | * Cross-chip operations | |
777 | */ | |
f66a6a69 VO |
778 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, |
779 | int sw_index, int port, | |
780 | struct net_device *br); | |
781 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, | |
782 | int sw_index, int port, | |
783 | struct net_device *br); | |
058102a6 TW |
784 | int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, |
785 | int port); | |
786 | int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, | |
787 | int port, struct net_device *lag, | |
788 | struct netdev_lag_upper_info *info); | |
789 | int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, | |
790 | int port, struct net_device *lag); | |
0336369d BS |
791 | |
792 | /* | |
793 | * PTP functionality | |
794 | */ | |
795 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
796 | struct ifreq *ifr); | |
797 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
798 | struct ifreq *ifr); | |
5c5416f5 YL |
799 | void (*port_txtstamp)(struct dsa_switch *ds, int port, |
800 | struct sk_buff *skb); | |
90af1059 BS |
801 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, |
802 | struct sk_buff *skb, unsigned int type); | |
97a69a0d | 803 | |
0f06b855 | 804 | /* Devlink parameters, etc */ |
6b297524 AL |
805 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, |
806 | struct devlink_param_gset_ctx *ctx); | |
807 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, | |
808 | struct devlink_param_gset_ctx *ctx); | |
0f06b855 AL |
809 | int (*devlink_info_get)(struct dsa_switch *ds, |
810 | struct devlink_info_req *req, | |
811 | struct netlink_ext_ack *extack); | |
2a6ef763 VO |
812 | int (*devlink_sb_pool_get)(struct dsa_switch *ds, |
813 | unsigned int sb_index, u16 pool_index, | |
814 | struct devlink_sb_pool_info *pool_info); | |
815 | int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, | |
816 | u16 pool_index, u32 size, | |
817 | enum devlink_sb_threshold_type threshold_type, | |
818 | struct netlink_ext_ack *extack); | |
819 | int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, | |
820 | unsigned int sb_index, u16 pool_index, | |
821 | u32 *p_threshold); | |
822 | int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, | |
823 | unsigned int sb_index, u16 pool_index, | |
824 | u32 threshold, | |
825 | struct netlink_ext_ack *extack); | |
826 | int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, | |
827 | unsigned int sb_index, u16 tc_index, | |
828 | enum devlink_sb_pool_type pool_type, | |
829 | u16 *p_pool_index, u32 *p_threshold); | |
830 | int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, | |
831 | unsigned int sb_index, u16 tc_index, | |
832 | enum devlink_sb_pool_type pool_type, | |
833 | u16 pool_index, u32 threshold, | |
834 | struct netlink_ext_ack *extack); | |
835 | int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, | |
836 | unsigned int sb_index); | |
837 | int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, | |
838 | unsigned int sb_index); | |
839 | int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, | |
840 | unsigned int sb_index, u16 pool_index, | |
841 | u32 *p_cur, u32 *p_max); | |
842 | int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, | |
843 | unsigned int sb_index, u16 tc_index, | |
844 | enum devlink_sb_pool_type pool_type, | |
845 | u32 *p_cur, u32 *p_max); | |
bfcb8132 VO |
846 | |
847 | /* | |
848 | * MTU change functionality. Switches can also adjust their MRU through | |
849 | * this method. By MTU, one understands the SDU (L2 payload) length. | |
850 | * If the switch needs to account for the DSA tag on the CPU port, this | |
ab88d64a | 851 | * method needs to do so privately. |
bfcb8132 VO |
852 | */ |
853 | int (*port_change_mtu)(struct dsa_switch *ds, int port, | |
854 | int new_mtu); | |
855 | int (*port_max_mtu)(struct dsa_switch *ds, int port); | |
058102a6 TW |
856 | |
857 | /* | |
858 | * LAG integration | |
859 | */ | |
860 | int (*port_lag_change)(struct dsa_switch *ds, int port); | |
861 | int (*port_lag_join)(struct dsa_switch *ds, int port, | |
862 | struct net_device *lag, | |
863 | struct netdev_lag_upper_info *info); | |
864 | int (*port_lag_leave)(struct dsa_switch *ds, int port, | |
865 | struct net_device *lag); | |
18596f50 GM |
866 | |
867 | /* | |
868 | * HSR integration | |
869 | */ | |
870 | int (*port_hsr_join)(struct dsa_switch *ds, int port, | |
871 | struct net_device *hsr); | |
872 | int (*port_hsr_leave)(struct dsa_switch *ds, int port, | |
873 | struct net_device *hsr); | |
c595c433 HV |
874 | |
875 | /* | |
876 | * MRP integration | |
877 | */ | |
878 | int (*port_mrp_add)(struct dsa_switch *ds, int port, | |
879 | const struct switchdev_obj_mrp *mrp); | |
880 | int (*port_mrp_del)(struct dsa_switch *ds, int port, | |
881 | const struct switchdev_obj_mrp *mrp); | |
882 | int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, | |
883 | const struct switchdev_obj_ring_role_mrp *mrp); | |
884 | int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, | |
885 | const struct switchdev_obj_ring_role_mrp *mrp); | |
5da11eb4 VO |
886 | |
887 | /* | |
888 | * tag_8021q operations | |
889 | */ | |
890 | int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, | |
891 | u16 flags); | |
892 | int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); | |
6b297524 AL |
893 | }; |
894 | ||
895 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ | |
896 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ | |
897 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) | |
898 | ||
899 | int dsa_devlink_param_get(struct devlink *dl, u32 id, | |
900 | struct devlink_param_gset_ctx *ctx); | |
901 | int dsa_devlink_param_set(struct devlink *dl, u32 id, | |
902 | struct devlink_param_gset_ctx *ctx); | |
903 | int dsa_devlink_params_register(struct dsa_switch *ds, | |
904 | const struct devlink_param *params, | |
905 | size_t params_count); | |
906 | void dsa_devlink_params_unregister(struct dsa_switch *ds, | |
907 | const struct devlink_param *params, | |
908 | size_t params_count); | |
5cd73fbd AL |
909 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
910 | const char *resource_name, | |
911 | u64 resource_size, | |
912 | u64 resource_id, | |
913 | u64 parent_resource_id, | |
914 | const struct devlink_resource_size_params *size_params); | |
915 | ||
916 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); | |
917 | ||
918 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, | |
919 | u64 resource_id, | |
920 | devlink_resource_occ_get_t *occ_get, | |
921 | void *occ_get_priv); | |
922 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, | |
923 | u64 resource_id); | |
97c82c23 AL |
924 | struct devlink_region * |
925 | dsa_devlink_region_create(struct dsa_switch *ds, | |
926 | const struct devlink_region_ops *ops, | |
927 | u32 region_max_snapshots, u64 region_size); | |
08156ba4 AL |
928 | struct devlink_region * |
929 | dsa_devlink_port_region_create(struct dsa_switch *ds, | |
930 | int port, | |
931 | const struct devlink_port_region_ops *ops, | |
932 | u32 region_max_snapshots, u64 region_size); | |
97c82c23 AL |
933 | void dsa_devlink_region_destroy(struct devlink_region *region); |
934 | ||
e1eea811 | 935 | struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); |
5cd73fbd | 936 | |
6b297524 AL |
937 | struct dsa_devlink_priv { |
938 | struct dsa_switch *ds; | |
c8f0b869 BH |
939 | }; |
940 | ||
ccc3e6b0 AL |
941 | static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) |
942 | { | |
943 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
944 | ||
945 | return dl_priv->ds; | |
946 | } | |
947 | ||
7d1e2a10 AL |
948 | static inline |
949 | struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) | |
950 | { | |
951 | struct devlink *dl = port->devlink; | |
952 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
953 | ||
954 | return dl_priv->ds; | |
955 | } | |
956 | ||
957 | static inline int dsa_devlink_port_to_port(struct devlink_port *port) | |
958 | { | |
959 | return port->index; | |
960 | } | |
961 | ||
ab3d408d FF |
962 | struct dsa_switch_driver { |
963 | struct list_head list; | |
a82f67af | 964 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
965 | }; |
966 | ||
14b89f36 | 967 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 968 | |
73a7ece8 | 969 | /* Keep inline for faster access in hot path */ |
9eb8eff0 | 970 | static inline bool netdev_uses_dsa(const struct net_device *dev) |
c6e970a0 AL |
971 | { |
972 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 973 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
974 | #endif |
975 | return false; | |
976 | } | |
977 | ||
9790cf20 VO |
978 | /* All DSA tags that push the EtherType to the right (basically all except tail |
979 | * tags, which don't break dissection) can be treated the same from the | |
980 | * perspective of the flow dissector. | |
981 | * | |
982 | * We need to return: | |
983 | * - offset: the (B - A) difference between: | |
984 | * A. the position of the real EtherType and | |
985 | * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes | |
986 | * after the normal EtherType was supposed to be) | |
987 | * The offset in bytes is exactly equal to the tagger overhead (and half of | |
988 | * that, in __be16 shorts). | |
989 | * | |
990 | * - proto: the value of the real EtherType. | |
991 | */ | |
992 | static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, | |
993 | __be16 *proto, int *offset) | |
994 | { | |
995 | #if IS_ENABLED(CONFIG_NET_DSA) | |
996 | const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; | |
4e500251 | 997 | int tag_len = ops->needed_headroom; |
9790cf20 VO |
998 | |
999 | *offset = tag_len; | |
1000 | *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; | |
1001 | #endif | |
1002 | } | |
1003 | ||
4cfab356 FF |
1004 | #if IS_ENABLED(CONFIG_NET_DSA) |
1005 | static inline int __dsa_netdevice_ops_check(struct net_device *dev) | |
1006 | { | |
1007 | int err = -EOPNOTSUPP; | |
1008 | ||
1009 | if (!dev->dsa_ptr) | |
1010 | return err; | |
1011 | ||
1012 | if (!dev->dsa_ptr->netdev_ops) | |
1013 | return err; | |
1014 | ||
1015 | return 0; | |
1016 | } | |
1017 | ||
a7605370 AB |
1018 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1019 | int cmd) | |
4cfab356 FF |
1020 | { |
1021 | const struct dsa_netdevice_ops *ops; | |
1022 | int err; | |
1023 | ||
1024 | err = __dsa_netdevice_ops_check(dev); | |
1025 | if (err) | |
1026 | return err; | |
1027 | ||
1028 | ops = dev->dsa_ptr->netdev_ops; | |
1029 | ||
a7605370 | 1030 | return ops->ndo_eth_ioctl(dev, ifr, cmd); |
4cfab356 | 1031 | } |
4cfab356 | 1032 | #else |
a7605370 AB |
1033 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1034 | int cmd) | |
4cfab356 FF |
1035 | { |
1036 | return -EOPNOTSUPP; | |
1037 | } | |
4cfab356 FF |
1038 | #endif |
1039 | ||
83c0afae | 1040 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 1041 | int dsa_register_switch(struct dsa_switch *ds); |
3b7bc1f0 | 1042 | struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |
ea825e70 FF |
1043 | #ifdef CONFIG_PM_SLEEP |
1044 | int dsa_switch_suspend(struct dsa_switch *ds); | |
1045 | int dsa_switch_resume(struct dsa_switch *ds); | |
1046 | #else | |
1047 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
1048 | { | |
1049 | return 0; | |
1050 | } | |
1051 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
1052 | { | |
1053 | return 0; | |
1054 | } | |
1055 | #endif /* CONFIG_PM_SLEEP */ | |
1056 | ||
60724d4b | 1057 | #if IS_ENABLED(CONFIG_NET_DSA) |
a5e3c9ba | 1058 | bool dsa_slave_dev_check(const struct net_device *dev); |
60724d4b | 1059 | #else |
a5e3c9ba VO |
1060 | static inline bool dsa_slave_dev_check(const struct net_device *dev) |
1061 | { | |
1062 | return false; | |
1063 | } | |
60724d4b FF |
1064 | #endif |
1065 | ||
97a69a0d | 1066 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
cf963573 FF |
1067 | int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); |
1068 | int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); | |
1069 | int dsa_port_get_phy_sset_count(struct dsa_port *dp); | |
11d8f3dd | 1070 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 1071 | |
d3b8c049 AL |
1072 | struct dsa_tag_driver { |
1073 | const struct dsa_device_ops *ops; | |
1074 | struct list_head list; | |
1075 | struct module *owner; | |
1076 | }; | |
1077 | ||
1078 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1079 | unsigned int count, | |
1080 | struct module *owner); | |
1081 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1082 | unsigned int count); | |
1083 | ||
1084 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
1085 | static int __init dsa_tag_driver_module_init(void) \ | |
1086 | { \ | |
1087 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
1088 | THIS_MODULE); \ | |
1089 | return 0; \ | |
1090 | } \ | |
1091 | module_init(dsa_tag_driver_module_init); \ | |
1092 | \ | |
1093 | static void __exit dsa_tag_driver_module_exit(void) \ | |
1094 | { \ | |
1095 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
1096 | } \ | |
1097 | module_exit(dsa_tag_driver_module_exit) | |
1098 | ||
1099 | /** | |
1100 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
1101 | * drivers | |
1102 | * @__ops_array: Array of tag driver strucutres | |
1103 | * | |
1104 | * Helper macro for DSA tag drivers which do not do anything special | |
1105 | * in module init/exit. Each module may only use this macro once, and | |
1106 | * calling it replaces module_init() and module_exit(). | |
1107 | */ | |
1108 | #define module_dsa_tag_drivers(__ops_array) \ | |
1109 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
1110 | ||
1111 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
1112 | ||
1113 | /* Create a static structure we can build a linked list of dsa_tag | |
1114 | * drivers | |
1115 | */ | |
1116 | #define DSA_TAG_DRIVER(__ops) \ | |
1117 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
1118 | .ops = &__ops, \ | |
1119 | } | |
1120 | ||
1121 | /** | |
1122 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
1123 | * driver | |
1124 | * @__ops: Single tag driver structures | |
1125 | * | |
1126 | * Helper macro for DSA tag drivers which do not do anything special | |
1127 | * in module init/exit. Each module may only use this macro once, and | |
1128 | * calling it replaces module_init() and module_exit(). | |
1129 | */ | |
1130 | #define module_dsa_tag_driver(__ops) \ | |
1131 | DSA_TAG_DRIVER(__ops); \ | |
1132 | \ | |
1133 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
1134 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
1135 | }; \ | |
1136 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 1137 | #endif |
d3b8c049 | 1138 |