Commit | Line | Data |
---|---|---|
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 |
1521d5ad | 54 | #define DSA_TAG_PROTO_RTL8_4_VALUE 24 |
0b42f033 | 55 | |
ac7a04c3 | 56 | enum dsa_tag_protocol { |
0b42f033 AL |
57 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
58 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, | |
964dbf18 | 59 | DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, |
0b42f033 AL |
60 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, |
61 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, | |
62 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, | |
63 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, | |
64 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, | |
65 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, | |
66 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, | |
67 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, | |
68 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, | |
69 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, | |
f9bbe447 | 70 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
227d07a0 | 71 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
016e43a2 | 72 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
8dce89aa | 73 | DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, |
48fda74f | 74 | DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, |
efd7fe68 | 75 | DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, |
01ef09ca | 76 | DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, |
54a52823 | 77 | DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, |
7c83a7c5 | 78 | DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, |
7c4bb540 | 79 | DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, |
4913b8eb | 80 | DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, |
1521d5ad | 81 | DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, |
ac7a04c3 | 82 | }; |
5037d532 | 83 | |
90af1059 | 84 | struct dsa_switch; |
3e8a72d1 | 85 | |
68277a2c JC |
86 | struct dsa_device_ops { |
87 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
29a097b7 | 88 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
2e8cb1b3 VO |
89 | void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
90 | int *offset); | |
4e500251 VO |
91 | unsigned int needed_headroom; |
92 | unsigned int needed_tailroom; | |
875138f8 | 93 | const char *name; |
056eed2f | 94 | enum dsa_tag_protocol proto; |
c3975400 VO |
95 | /* Some tagging protocols either mangle or shift the destination MAC |
96 | * address, in which case the DSA master would drop packets on ingress | |
97 | * if what it understands out of the destination MAC address is not in | |
98 | * its RX filter. | |
99 | */ | |
100 | bool promisc_on_master; | |
68277a2c JC |
101 | }; |
102 | ||
4cfab356 FF |
103 | /* This structure defines the control interfaces that are overlayed by the |
104 | * DSA layer on top of the DSA CPU/management net_device instance. This is | |
105 | * used by the core net_device layer while calling various net_device_ops | |
106 | * function pointers. | |
107 | */ | |
108 | struct dsa_netdevice_ops { | |
a7605370 AB |
109 | int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, |
110 | int cmd); | |
4cfab356 FF |
111 | }; |
112 | ||
0b42f033 AL |
113 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
114 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
115 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
116 | ||
cf50dcc2 | 117 | struct dsa_switch_tree { |
83c0afae AL |
118 | struct list_head list; |
119 | ||
f515f192 VD |
120 | /* Notifier chain for switch-wide events */ |
121 | struct raw_notifier_head nh; | |
122 | ||
83c0afae | 123 | /* Tree identifier */ |
49463b7f | 124 | unsigned int index; |
83c0afae AL |
125 | |
126 | /* Number of switches attached to this tree */ | |
127 | struct kref refcount; | |
128 | ||
129 | /* Has this tree been applied to the hardware? */ | |
ec15dd42 | 130 | bool setup; |
83c0afae | 131 | |
357f203b VO |
132 | /* Tagging protocol operations */ |
133 | const struct dsa_device_ops *tag_ops; | |
134 | ||
deff7107 TW |
135 | /* Default tagging protocol preferred by the switches in this |
136 | * tree. | |
137 | */ | |
138 | enum dsa_tag_protocol default_proto; | |
139 | ||
cf50dcc2 BH |
140 | /* |
141 | * Configuration data for the platform device that owns | |
142 | * this dsa switch tree instance. | |
143 | */ | |
144 | struct dsa_platform_data *pd; | |
145 | ||
ab8ccae1 VD |
146 | /* List of switch ports */ |
147 | struct list_head ports; | |
148 | ||
c5f51765 VD |
149 | /* List of DSA links composing the routing table */ |
150 | struct list_head rtable; | |
058102a6 TW |
151 | |
152 | /* Maps offloaded LAG netdevs to a zero-based linear ID for | |
153 | * drivers that need it. | |
154 | */ | |
155 | struct net_device **lags; | |
156 | unsigned int lags_len; | |
5b22d366 VO |
157 | |
158 | /* Track the largest switch index within a tree */ | |
159 | unsigned int last_switch; | |
cf50dcc2 BH |
160 | }; |
161 | ||
058102a6 TW |
162 | #define dsa_lags_foreach_id(_id, _dst) \ |
163 | for ((_id) = 0; (_id) < (_dst)->lags_len; (_id)++) \ | |
164 | if ((_dst)->lags[(_id)]) | |
165 | ||
166 | #define dsa_lag_foreach_port(_dp, _dst, _lag) \ | |
167 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
168 | if ((_dp)->lag_dev == (_lag)) | |
169 | ||
18596f50 GM |
170 | #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ |
171 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
172 | if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) | |
173 | ||
058102a6 TW |
174 | static inline struct net_device *dsa_lag_dev(struct dsa_switch_tree *dst, |
175 | unsigned int id) | |
176 | { | |
177 | return dst->lags[id]; | |
178 | } | |
179 | ||
180 | static inline int dsa_lag_id(struct dsa_switch_tree *dst, | |
181 | struct net_device *lag) | |
182 | { | |
183 | unsigned int id; | |
184 | ||
185 | dsa_lags_foreach_id(id, dst) { | |
186 | if (dsa_lag_dev(dst, id) == lag) | |
187 | return id; | |
188 | } | |
189 | ||
190 | return -ENODEV; | |
191 | } | |
192 | ||
34297176 | 193 | /* TC matchall action types */ |
f50f2127 FF |
194 | enum dsa_port_mall_action_type { |
195 | DSA_PORT_MALL_MIRROR, | |
34297176 | 196 | DSA_PORT_MALL_POLICER, |
f50f2127 FF |
197 | }; |
198 | ||
199 | /* TC mirroring entry */ | |
200 | struct dsa_mall_mirror_tc_entry { | |
201 | u8 to_local_port; | |
202 | bool ingress; | |
203 | }; | |
204 | ||
34297176 VO |
205 | /* TC port policer entry */ |
206 | struct dsa_mall_policer_tc_entry { | |
5f035af7 | 207 | u32 burst; |
34297176 VO |
208 | u64 rate_bytes_per_sec; |
209 | }; | |
210 | ||
f50f2127 FF |
211 | /* TC matchall entry */ |
212 | struct dsa_mall_tc_entry { | |
213 | struct list_head list; | |
214 | unsigned long cookie; | |
215 | enum dsa_port_mall_action_type type; | |
216 | union { | |
217 | struct dsa_mall_mirror_tc_entry mirror; | |
34297176 | 218 | struct dsa_mall_policer_tc_entry policer; |
f50f2127 FF |
219 | }; |
220 | }; | |
221 | ||
d3eed0e5 VO |
222 | struct dsa_bridge { |
223 | struct net_device *dev; | |
224 | unsigned int num; | |
225 | refcount_t refcount; | |
226 | }; | |
f50f2127 | 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; | |
29a097b7 | 244 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 245 | |
057cad2c VD |
246 | enum { |
247 | DSA_PORT_TYPE_UNUSED = 0, | |
248 | DSA_PORT_TYPE_CPU, | |
249 | DSA_PORT_TYPE_DSA, | |
250 | DSA_PORT_TYPE_USER, | |
251 | } type; | |
252 | ||
818be848 VD |
253 | struct dsa_switch *ds; |
254 | unsigned int index; | |
71e0bbde | 255 | const char *name; |
68b2d4a8 | 256 | struct dsa_port *cpu_dp; |
83216e39 | 257 | u8 mac[ETH_ALEN]; |
189b0d93 | 258 | struct device_node *dn; |
34a79f63 | 259 | unsigned int ageing_time; |
33162e9a | 260 | bool vlan_filtering; |
5313a37b | 261 | /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ |
045c45d1 | 262 | bool learning; |
732f794c | 263 | u8 stp_state; |
d3eed0e5 | 264 | struct dsa_bridge *bridge; |
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 | 290 | |
161ca59d VO |
291 | /* List of MAC addresses that must be forwarded on this port. |
292 | * These are only valid on CPU ports and DSA links. | |
293 | */ | |
338a3a47 | 294 | struct mutex addr_lists_lock; |
3f6e32f9 | 295 | struct list_head fdbs; |
161ca59d VO |
296 | struct list_head mdbs; |
297 | ||
fb35c60c | 298 | bool setup; |
c8b09808 AL |
299 | }; |
300 | ||
c5f51765 VD |
301 | /* TODO: ideally DSA ports would have a single dp->link_dp member, |
302 | * and no dst->rtable nor this struct dsa_link would be needed, | |
303 | * but this would require some more complex tree walking, | |
304 | * so keep it stupid at the moment and list them all. | |
305 | */ | |
306 | struct dsa_link { | |
307 | struct dsa_port *dp; | |
308 | struct dsa_port *link_dp; | |
309 | struct list_head list; | |
310 | }; | |
311 | ||
161ca59d VO |
312 | struct dsa_mac_addr { |
313 | unsigned char addr[ETH_ALEN]; | |
314 | u16 vid; | |
315 | refcount_t refcount; | |
316 | struct list_head list; | |
317 | }; | |
318 | ||
c8f0b869 | 319 | struct dsa_switch { |
fb35c60c VD |
320 | bool setup; |
321 | ||
c33063d6 AL |
322 | struct device *dev; |
323 | ||
c8f0b869 BH |
324 | /* |
325 | * Parent switch tree, and switch index. | |
326 | */ | |
327 | struct dsa_switch_tree *dst; | |
99feaafc | 328 | unsigned int index; |
c8f0b869 | 329 | |
f515f192 VD |
330 | /* Listener for switch fabric events */ |
331 | struct notifier_block nb; | |
332 | ||
7543a6d5 AL |
333 | /* |
334 | * Give the switch driver somewhere to hang its private data | |
335 | * structure. | |
336 | */ | |
337 | void *priv; | |
338 | ||
c8f0b869 BH |
339 | /* |
340 | * Configuration data for this switch. | |
341 | */ | |
ff04955c | 342 | struct dsa_chip_data *cd; |
c8f0b869 BH |
343 | |
344 | /* | |
9d490b4e | 345 | * The switch operations. |
c8f0b869 | 346 | */ |
a82f67af | 347 | const struct dsa_switch_ops *ops; |
c8f0b869 | 348 | |
c8f0b869 BH |
349 | /* |
350 | * Slave mii_bus and devices for the individual ports. | |
351 | */ | |
0d8bcdd3 | 352 | u32 phys_mii_mask; |
c8f0b869 | 353 | struct mii_bus *slave_mii_bus; |
a0c02161 | 354 | |
0f3da6af VD |
355 | /* Ageing Time limits in msecs */ |
356 | unsigned int ageing_time_min; | |
357 | unsigned int ageing_time_max; | |
358 | ||
d7b1fd52 VO |
359 | /* Storage for drivers using tag_8021q */ |
360 | struct dsa_8021q_context *tag_8021q_ctx; | |
361 | ||
96567d5d AL |
362 | /* devlink used to represent this switch device */ |
363 | struct devlink *devlink; | |
364 | ||
55199df6 FF |
365 | /* Number of switch port queues */ |
366 | unsigned int num_tx_queues; | |
367 | ||
8f5d16f6 VO |
368 | /* Disallow bridge core from requesting different VLAN awareness |
369 | * settings on ports if not hardware-supported | |
370 | */ | |
371 | bool vlan_filtering_is_global; | |
372 | ||
58adf9dc VO |
373 | /* Keep VLAN filtering enabled on ports not offloading any upper. */ |
374 | bool needs_standalone_vlan_filtering; | |
375 | ||
54a0ed0d RK |
376 | /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges |
377 | * that have vlan_filtering=0. All drivers should ideally set this (and | |
378 | * then the option would get removed), but it is unknown whether this | |
379 | * would break things or not. | |
380 | */ | |
381 | bool configure_vlan_while_not_filtering; | |
382 | ||
1dc0408c FF |
383 | /* If the switch driver always programs the CPU port as egress tagged |
384 | * despite the VLAN configuration indicating otherwise, then setting | |
385 | * @untag_bridge_pvid will force the DSA receive path to pop the bridge's | |
386 | * default_pvid VLAN tagged frames to offer a consistent behavior | |
387 | * between a vlan_filtering=0 and vlan_filtering=1 bridge device. | |
388 | */ | |
389 | bool untag_bridge_pvid; | |
390 | ||
d5f19486 VO |
391 | /* Let DSA manage the FDB entries towards the CPU, based on the |
392 | * software bridge database. | |
393 | */ | |
394 | bool assisted_learning_on_cpu_port; | |
395 | ||
14574676 VO |
396 | /* In case vlan_filtering_is_global is set, the VLAN awareness state |
397 | * should be retrieved from here and not from the per-port settings. | |
398 | */ | |
399 | bool vlan_filtering; | |
400 | ||
787cac3f VO |
401 | /* MAC PCS does not provide link state change interrupt, and requires |
402 | * polling. Flag passed on to PHYLINK. | |
403 | */ | |
404 | bool pcs_poll; | |
405 | ||
bff33f7e VO |
406 | /* For switches that only have the MRU configurable. To ensure the |
407 | * configured MTU is not exceeded, normalization of MRU on all bridged | |
408 | * interfaces is needed. | |
409 | */ | |
410 | bool mtu_enforcement_ingress; | |
411 | ||
058102a6 TW |
412 | /* Drivers that benefit from having an ID associated with each |
413 | * offloaded LAG should set this to the maximum number of | |
414 | * supported IDs. DSA will then maintain a mapping of _at | |
415 | * least_ these many IDs, accessible to drivers via | |
416 | * dsa_lag_id(). | |
417 | */ | |
418 | unsigned int num_lag_ids; | |
419 | ||
947c8746 VO |
420 | /* Drivers that support bridge forwarding offload or FDB isolation |
421 | * should set this to the maximum number of bridges spanning the same | |
422 | * switch tree (or all trees, in the case of cross-tree bridging | |
423 | * support) that can be offloaded. | |
123abc06 | 424 | */ |
947c8746 | 425 | unsigned int max_num_bridges; |
123abc06 | 426 | |
a0c02161 | 427 | size_t num_ports; |
c8f0b869 BH |
428 | }; |
429 | ||
68bb8ea8 | 430 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 431 | { |
b96ddf25 | 432 | struct dsa_switch_tree *dst = ds->dst; |
d607525b | 433 | struct dsa_port *dp; |
b96ddf25 VD |
434 | |
435 | list_for_each_entry(dp, &dst->ports, list) | |
436 | if (dp->ds == ds && dp->index == p) | |
d607525b | 437 | return dp; |
b96ddf25 | 438 | |
d607525b | 439 | return NULL; |
c38c5a66 | 440 | } |
bff7b688 | 441 | |
a8986681 VO |
442 | static inline bool dsa_port_is_dsa(struct dsa_port *port) |
443 | { | |
444 | return port->type == DSA_PORT_TYPE_DSA; | |
445 | } | |
446 | ||
447 | static inline bool dsa_port_is_cpu(struct dsa_port *port) | |
448 | { | |
449 | return port->type == DSA_PORT_TYPE_CPU; | |
450 | } | |
451 | ||
452 | static inline bool dsa_port_is_user(struct dsa_port *dp) | |
453 | { | |
454 | return dp->type == DSA_PORT_TYPE_USER; | |
455 | } | |
456 | ||
a57d8c21 VO |
457 | static inline bool dsa_port_is_unused(struct dsa_port *dp) |
458 | { | |
459 | return dp->type == DSA_PORT_TYPE_UNUSED; | |
460 | } | |
461 | ||
c38c5a66 VD |
462 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
463 | { | |
464 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
465 | } |
466 | ||
c8f0b869 BH |
467 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
468 | { | |
c38c5a66 | 469 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
470 | } |
471 | ||
60045cbf AL |
472 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
473 | { | |
c38c5a66 | 474 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
475 | } |
476 | ||
2b3e9891 | 477 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 478 | { |
c38c5a66 | 479 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
480 | } |
481 | ||
82b31898 VO |
482 | #define dsa_tree_for_each_user_port(_dp, _dst) \ |
483 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
484 | if (dsa_port_is_user((_dp))) | |
485 | ||
486 | #define dsa_switch_for_each_port(_dp, _ds) \ | |
487 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
488 | if ((_dp)->ds == (_ds)) | |
489 | ||
490 | #define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ | |
491 | list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ | |
492 | if ((_dp)->ds == (_ds)) | |
493 | ||
494 | #define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ | |
495 | list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ | |
496 | if ((_dp)->ds == (_ds)) | |
497 | ||
498 | #define dsa_switch_for_each_available_port(_dp, _ds) \ | |
499 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
500 | if (!dsa_port_is_unused((_dp))) | |
501 | ||
502 | #define dsa_switch_for_each_user_port(_dp, _ds) \ | |
503 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
504 | if (dsa_port_is_user((_dp))) | |
505 | ||
506 | #define dsa_switch_for_each_cpu_port(_dp, _ds) \ | |
507 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
508 | if (dsa_port_is_cpu((_dp))) | |
509 | ||
02bc6e54 VD |
510 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
511 | { | |
d0004a02 | 512 | struct dsa_port *dp; |
c38c5a66 | 513 | u32 mask = 0; |
02bc6e54 | 514 | |
d0004a02 VO |
515 | dsa_switch_for_each_user_port(dp, ds) |
516 | mask |= BIT(dp->index); | |
c38c5a66 VD |
517 | |
518 | return mask; | |
c8652c83 VD |
519 | } |
520 | ||
c5f51765 VD |
521 | /* Return the local port used to reach an arbitrary switch device */ |
522 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) | |
523 | { | |
524 | struct dsa_switch_tree *dst = ds->dst; | |
525 | struct dsa_link *dl; | |
526 | ||
527 | list_for_each_entry(dl, &dst->rtable, list) | |
528 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) | |
529 | return dl->dp->index; | |
530 | ||
531 | return ds->num_ports; | |
532 | } | |
533 | ||
3b8fac5d VD |
534 | /* Return the local port used to reach an arbitrary switch port */ |
535 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
536 | int port) | |
537 | { | |
538 | if (device == ds->index) | |
539 | return port; | |
540 | else | |
c5f51765 | 541 | return dsa_routing_port(ds, device); |
3b8fac5d VD |
542 | } |
543 | ||
544 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 545 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 546 | { |
07073c79 VD |
547 | const struct dsa_port *dp = dsa_to_port(ds, port); |
548 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
549 | ||
550 | if (!cpu_dp) | |
551 | return port; | |
c8f0b869 | 552 | |
3b8fac5d | 553 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
554 | } |
555 | ||
63609c8f VO |
556 | /* Return true if this is the local port used to reach the CPU port */ |
557 | static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) | |
558 | { | |
559 | if (dsa_is_unused_port(ds, port)) | |
560 | return false; | |
561 | ||
562 | return port == dsa_upstream_port(ds, port); | |
563 | } | |
564 | ||
565 | /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning | |
566 | * that the routing port from @downstream_ds to @upstream_ds is also the port | |
567 | * which @downstream_ds uses to reach its dedicated CPU. | |
568 | */ | |
569 | static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, | |
570 | struct dsa_switch *downstream_ds) | |
571 | { | |
572 | int routing_port; | |
573 | ||
574 | if (upstream_ds == downstream_ds) | |
575 | return true; | |
576 | ||
577 | routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); | |
578 | ||
579 | return dsa_is_upstream_port(downstream_ds, routing_port); | |
580 | } | |
581 | ||
cf2d45f5 VO |
582 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
583 | { | |
584 | const struct dsa_switch *ds = dp->ds; | |
585 | ||
586 | if (ds->vlan_filtering_is_global) | |
587 | return ds->vlan_filtering; | |
588 | else | |
589 | return dp->vlan_filtering; | |
590 | } | |
591 | ||
cc76ce9e TW |
592 | static inline |
593 | struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) | |
594 | { | |
d3eed0e5 | 595 | if (!dp->bridge) |
cc76ce9e TW |
596 | return NULL; |
597 | ||
598 | if (dp->lag_dev) | |
599 | return dp->lag_dev; | |
600 | else if (dp->hsr_dev) | |
601 | return dp->hsr_dev; | |
602 | ||
603 | return dp->slave; | |
604 | } | |
605 | ||
36cbf39b VO |
606 | static inline struct net_device * |
607 | dsa_port_bridge_dev_get(const struct dsa_port *dp) | |
608 | { | |
d3eed0e5 | 609 | return dp->bridge ? dp->bridge->dev : NULL; |
36cbf39b VO |
610 | } |
611 | ||
612 | static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) | |
613 | { | |
d3eed0e5 | 614 | return dp->bridge ? dp->bridge->num : 0; |
36cbf39b VO |
615 | } |
616 | ||
617 | static inline bool dsa_port_bridge_same(const struct dsa_port *a, | |
618 | const struct dsa_port *b) | |
619 | { | |
620 | struct net_device *br_a = dsa_port_bridge_dev_get(a); | |
621 | struct net_device *br_b = dsa_port_bridge_dev_get(b); | |
622 | ||
623 | /* Standalone ports are not in the same bridge with one another */ | |
624 | return (!br_a || !br_b) ? false : (br_a == br_b); | |
625 | } | |
626 | ||
6a43cba3 VO |
627 | static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, |
628 | const struct net_device *dev) | |
629 | { | |
630 | return dsa_port_to_bridge_port(dp) == dev; | |
631 | } | |
632 | ||
633 | static inline bool | |
634 | dsa_port_offloads_bridge_dev(struct dsa_port *dp, | |
635 | const struct net_device *bridge_dev) | |
636 | { | |
637 | /* DSA ports connected to a bridge, and event was emitted | |
638 | * for the bridge. | |
639 | */ | |
640 | return dsa_port_bridge_dev_get(dp) == bridge_dev; | |
641 | } | |
642 | ||
d3eed0e5 VO |
643 | static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, |
644 | const struct dsa_bridge *bridge) | |
645 | { | |
646 | return dsa_port_bridge_dev_get(dp) == bridge->dev; | |
647 | } | |
648 | ||
6a43cba3 VO |
649 | /* Returns true if any port of this tree offloads the given net_device */ |
650 | static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, | |
651 | const struct net_device *dev) | |
652 | { | |
653 | struct dsa_port *dp; | |
654 | ||
655 | list_for_each_entry(dp, &dst->ports, list) | |
656 | if (dsa_port_offloads_bridge_port(dp, dev)) | |
657 | return true; | |
658 | ||
659 | return false; | |
660 | } | |
661 | ||
662 | /* Returns true if any port of this tree offloads the given bridge */ | |
663 | static inline bool | |
664 | dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, | |
665 | const struct net_device *bridge_dev) | |
666 | { | |
667 | struct dsa_port *dp; | |
668 | ||
669 | list_for_each_entry(dp, &dst->ports, list) | |
670 | if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) | |
671 | return true; | |
672 | ||
673 | return false; | |
674 | } | |
675 | ||
2bedde1a AS |
676 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
677 | bool is_static, void *data); | |
9d490b4e | 678 | struct dsa_switch_ops { |
53da0eba VO |
679 | /* |
680 | * Tagging protocol helpers called for the CPU ports and DSA links. | |
681 | * @get_tag_protocol retrieves the initial tagging protocol and is | |
682 | * mandatory. Switches which can operate using multiple tagging | |
683 | * protocols should implement @change_tag_protocol and report in | |
684 | * @get_tag_protocol the tagger in current use. | |
685 | */ | |
5ed4e3eb | 686 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
4d776482 FF |
687 | int port, |
688 | enum dsa_tag_protocol mprot); | |
53da0eba VO |
689 | int (*change_tag_protocol)(struct dsa_switch *ds, int port, |
690 | enum dsa_tag_protocol proto); | |
7b314362 | 691 | |
fd292c18 | 692 | /* Optional switch-wide initialization and destruction methods */ |
c8f0b869 | 693 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 694 | void (*teardown)(struct dsa_switch *ds); |
fd292c18 VO |
695 | |
696 | /* Per-port initialization and destruction methods. Mandatory if the | |
697 | * driver registers devlink port regions, optional otherwise. | |
698 | */ | |
699 | int (*port_setup)(struct dsa_switch *ds, int port); | |
700 | void (*port_teardown)(struct dsa_switch *ds, int port); | |
701 | ||
6819563e | 702 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
703 | |
704 | /* | |
705 | * Access to the switch's PHY registers. | |
706 | */ | |
707 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
708 | int (*phy_write)(struct dsa_switch *ds, int port, | |
709 | int regnum, u16 val); | |
710 | ||
ec9436ba FF |
711 | /* |
712 | * Link state adjustment (called from libphy) | |
713 | */ | |
714 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
715 | struct phy_device *phydev); | |
ce31b31c FF |
716 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
717 | struct fixed_phy_status *st); | |
ec9436ba | 718 | |
11d8f3dd FF |
719 | /* |
720 | * PHYLINK integration | |
721 | */ | |
072eea6c RKO |
722 | void (*phylink_get_caps)(struct dsa_switch *ds, int port, |
723 | struct phylink_config *config); | |
11d8f3dd FF |
724 | void (*phylink_validate)(struct dsa_switch *ds, int port, |
725 | unsigned long *supported, | |
726 | struct phylink_link_state *state); | |
727 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, | |
728 | struct phylink_link_state *state); | |
729 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
730 | unsigned int mode, | |
731 | const struct phylink_link_state *state); | |
732 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
733 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
734 | unsigned int mode, | |
735 | phy_interface_t interface); | |
736 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
737 | unsigned int mode, | |
738 | phy_interface_t interface, | |
5b502a7b RK |
739 | struct phy_device *phydev, |
740 | int speed, int duplex, | |
741 | bool tx_pause, bool rx_pause); | |
11d8f3dd FF |
742 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, |
743 | struct phylink_link_state *state); | |
c8f0b869 | 744 | /* |
c2ec5f2e | 745 | * Port statistics counters. |
c8f0b869 | 746 | */ |
89f09048 FF |
747 | void (*get_strings)(struct dsa_switch *ds, int port, |
748 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
749 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
750 | int port, uint64_t *data); | |
89f09048 | 751 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
752 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
753 | int port, uint64_t *data); | |
487d3855 AŠ |
754 | void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, |
755 | struct ethtool_eth_phy_stats *phy_stats); | |
756 | void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, | |
757 | struct ethtool_eth_mac_stats *mac_stats); | |
758 | void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, | |
759 | struct ethtool_eth_ctrl_stats *ctrl_stats); | |
c2ec5f2e OR |
760 | void (*get_stats64)(struct dsa_switch *ds, int port, |
761 | struct rtnl_link_stats64 *s); | |
a71acad9 OR |
762 | void (*self_test)(struct dsa_switch *ds, int port, |
763 | struct ethtool_test *etest, u64 *data); | |
24462549 | 764 | |
19e57c4e FF |
765 | /* |
766 | * ethtool Wake-on-LAN | |
767 | */ | |
768 | void (*get_wol)(struct dsa_switch *ds, int port, | |
769 | struct ethtool_wolinfo *w); | |
770 | int (*set_wol)(struct dsa_switch *ds, int port, | |
771 | struct ethtool_wolinfo *w); | |
772 | ||
0336369d BS |
773 | /* |
774 | * ethtool timestamp info | |
775 | */ | |
776 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
777 | struct ethtool_ts_info *ts); | |
778 | ||
24462549 FF |
779 | /* |
780 | * Suspend and resume | |
781 | */ | |
782 | int (*suspend)(struct dsa_switch *ds); | |
783 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
784 | |
785 | /* | |
786 | * Port enable/disable | |
787 | */ | |
788 | int (*port_enable)(struct dsa_switch *ds, int port, | |
789 | struct phy_device *phy); | |
75104db0 | 790 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
791 | |
792 | /* | |
08f50061 | 793 | * Port's MAC EEE settings |
7905288f | 794 | */ |
08f50061 VD |
795 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
796 | struct ethtool_eee *e); | |
797 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
798 | struct ethtool_eee *e); | |
51579c3f | 799 | |
6793abb4 GR |
800 | /* EEPROM access */ |
801 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
802 | int (*get_eeprom)(struct dsa_switch *ds, | |
803 | struct ethtool_eeprom *eeprom, u8 *data); | |
804 | int (*set_eeprom)(struct dsa_switch *ds, | |
805 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
806 | |
807 | /* | |
808 | * Register access. | |
809 | */ | |
810 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
811 | void (*get_regs)(struct dsa_switch *ds, int port, | |
812 | struct ethtool_regs *regs, void *p); | |
b73adef6 | 813 | |
e358bef7 VO |
814 | /* |
815 | * Upper device tracking. | |
816 | */ | |
817 | int (*port_prechangeupper)(struct dsa_switch *ds, int port, | |
818 | struct netdev_notifier_changeupper_info *info); | |
819 | ||
b73adef6 FF |
820 | /* |
821 | * Bridge integration | |
822 | */ | |
34a79f63 | 823 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 824 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
d3eed0e5 | 825 | struct dsa_bridge bridge); |
f123f2fb | 826 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
d3eed0e5 | 827 | struct dsa_bridge bridge); |
123abc06 VO |
828 | /* Called right after .port_bridge_join() */ |
829 | int (*port_bridge_tx_fwd_offload)(struct dsa_switch *ds, int port, | |
d3eed0e5 | 830 | struct dsa_bridge bridge); |
123abc06 VO |
831 | /* Called right before .port_bridge_leave() */ |
832 | void (*port_bridge_tx_fwd_unoffload)(struct dsa_switch *ds, int port, | |
d3eed0e5 | 833 | struct dsa_bridge bridge); |
43c44a9f VD |
834 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
835 | u8 state); | |
732f794c | 836 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
a8b659e7 VO |
837 | int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, |
838 | struct switchdev_brport_flags flags, | |
839 | struct netlink_ext_ack *extack); | |
840 | int (*port_bridge_flags)(struct dsa_switch *ds, int port, | |
841 | struct switchdev_brport_flags flags, | |
842 | struct netlink_ext_ack *extack); | |
2a778e1b | 843 | |
11149536 VD |
844 | /* |
845 | * VLAN support | |
846 | */ | |
fb2dabad | 847 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
89153ed6 VO |
848 | bool vlan_filtering, |
849 | struct netlink_ext_ack *extack); | |
1958d581 | 850 | int (*port_vlan_add)(struct dsa_switch *ds, int port, |
31046a5f VO |
851 | const struct switchdev_obj_port_vlan *vlan, |
852 | struct netlink_ext_ack *extack); | |
76e398a6 VD |
853 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
854 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
855 | /* |
856 | * Forwarding database | |
857 | */ | |
1b6dd556 | 858 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
6c2c1dcb | 859 | const unsigned char *addr, u16 vid); |
2a778e1b | 860 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
6c2c1dcb | 861 | const unsigned char *addr, u16 vid); |
ea70ba98 | 862 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 863 | dsa_fdb_dump_cb_t *cb, void *data); |
8df30255 VD |
864 | |
865 | /* | |
866 | * Multicast database | |
867 | */ | |
a52b2da7 | 868 | int (*port_mdb_add)(struct dsa_switch *ds, int port, |
3709aadc | 869 | const struct switchdev_obj_port_mdb *mdb); |
8df30255 VD |
870 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
871 | const struct switchdev_obj_port_mdb *mdb); | |
bf9f2648 FF |
872 | /* |
873 | * RXNFC | |
874 | */ | |
875 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
876 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
877 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
878 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
879 | |
880 | /* | |
881 | * TC integration | |
882 | */ | |
ed11bb1f VO |
883 | int (*cls_flower_add)(struct dsa_switch *ds, int port, |
884 | struct flow_cls_offload *cls, bool ingress); | |
885 | int (*cls_flower_del)(struct dsa_switch *ds, int port, | |
886 | struct flow_cls_offload *cls, bool ingress); | |
887 | int (*cls_flower_stats)(struct dsa_switch *ds, int port, | |
888 | struct flow_cls_offload *cls, bool ingress); | |
f50f2127 FF |
889 | int (*port_mirror_add)(struct dsa_switch *ds, int port, |
890 | struct dsa_mall_mirror_tc_entry *mirror, | |
891 | bool ingress); | |
892 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
893 | struct dsa_mall_mirror_tc_entry *mirror); | |
34297176 VO |
894 | int (*port_policer_add)(struct dsa_switch *ds, int port, |
895 | struct dsa_mall_policer_tc_entry *policer); | |
896 | void (*port_policer_del)(struct dsa_switch *ds, int port); | |
47d23af2 VO |
897 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
898 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
899 | |
900 | /* | |
901 | * Cross-chip operations | |
902 | */ | |
f66a6a69 VO |
903 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, |
904 | int sw_index, int port, | |
d3eed0e5 | 905 | struct dsa_bridge bridge); |
f66a6a69 VO |
906 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, |
907 | int sw_index, int port, | |
d3eed0e5 | 908 | struct dsa_bridge bridge); |
058102a6 TW |
909 | int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, |
910 | int port); | |
911 | int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, | |
912 | int port, struct net_device *lag, | |
913 | struct netdev_lag_upper_info *info); | |
914 | int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, | |
915 | int port, struct net_device *lag); | |
0336369d BS |
916 | |
917 | /* | |
918 | * PTP functionality | |
919 | */ | |
920 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
921 | struct ifreq *ifr); | |
922 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
923 | struct ifreq *ifr); | |
5c5416f5 YL |
924 | void (*port_txtstamp)(struct dsa_switch *ds, int port, |
925 | struct sk_buff *skb); | |
90af1059 BS |
926 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, |
927 | struct sk_buff *skb, unsigned int type); | |
97a69a0d | 928 | |
0f06b855 | 929 | /* Devlink parameters, etc */ |
6b297524 AL |
930 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, |
931 | struct devlink_param_gset_ctx *ctx); | |
932 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, | |
933 | struct devlink_param_gset_ctx *ctx); | |
0f06b855 AL |
934 | int (*devlink_info_get)(struct dsa_switch *ds, |
935 | struct devlink_info_req *req, | |
936 | struct netlink_ext_ack *extack); | |
2a6ef763 VO |
937 | int (*devlink_sb_pool_get)(struct dsa_switch *ds, |
938 | unsigned int sb_index, u16 pool_index, | |
939 | struct devlink_sb_pool_info *pool_info); | |
940 | int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, | |
941 | u16 pool_index, u32 size, | |
942 | enum devlink_sb_threshold_type threshold_type, | |
943 | struct netlink_ext_ack *extack); | |
944 | int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, | |
945 | unsigned int sb_index, u16 pool_index, | |
946 | u32 *p_threshold); | |
947 | int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, | |
948 | unsigned int sb_index, u16 pool_index, | |
949 | u32 threshold, | |
950 | struct netlink_ext_ack *extack); | |
951 | int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, | |
952 | unsigned int sb_index, u16 tc_index, | |
953 | enum devlink_sb_pool_type pool_type, | |
954 | u16 *p_pool_index, u32 *p_threshold); | |
955 | int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, | |
956 | unsigned int sb_index, u16 tc_index, | |
957 | enum devlink_sb_pool_type pool_type, | |
958 | u16 pool_index, u32 threshold, | |
959 | struct netlink_ext_ack *extack); | |
960 | int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, | |
961 | unsigned int sb_index); | |
962 | int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, | |
963 | unsigned int sb_index); | |
964 | int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, | |
965 | unsigned int sb_index, u16 pool_index, | |
966 | u32 *p_cur, u32 *p_max); | |
967 | int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, | |
968 | unsigned int sb_index, u16 tc_index, | |
969 | enum devlink_sb_pool_type pool_type, | |
970 | u32 *p_cur, u32 *p_max); | |
bfcb8132 VO |
971 | |
972 | /* | |
973 | * MTU change functionality. Switches can also adjust their MRU through | |
974 | * this method. By MTU, one understands the SDU (L2 payload) length. | |
975 | * If the switch needs to account for the DSA tag on the CPU port, this | |
ab88d64a | 976 | * method needs to do so privately. |
bfcb8132 VO |
977 | */ |
978 | int (*port_change_mtu)(struct dsa_switch *ds, int port, | |
979 | int new_mtu); | |
980 | int (*port_max_mtu)(struct dsa_switch *ds, int port); | |
058102a6 TW |
981 | |
982 | /* | |
983 | * LAG integration | |
984 | */ | |
985 | int (*port_lag_change)(struct dsa_switch *ds, int port); | |
986 | int (*port_lag_join)(struct dsa_switch *ds, int port, | |
987 | struct net_device *lag, | |
988 | struct netdev_lag_upper_info *info); | |
989 | int (*port_lag_leave)(struct dsa_switch *ds, int port, | |
990 | struct net_device *lag); | |
18596f50 GM |
991 | |
992 | /* | |
993 | * HSR integration | |
994 | */ | |
995 | int (*port_hsr_join)(struct dsa_switch *ds, int port, | |
996 | struct net_device *hsr); | |
997 | int (*port_hsr_leave)(struct dsa_switch *ds, int port, | |
998 | struct net_device *hsr); | |
c595c433 HV |
999 | |
1000 | /* | |
1001 | * MRP integration | |
1002 | */ | |
1003 | int (*port_mrp_add)(struct dsa_switch *ds, int port, | |
1004 | const struct switchdev_obj_mrp *mrp); | |
1005 | int (*port_mrp_del)(struct dsa_switch *ds, int port, | |
1006 | const struct switchdev_obj_mrp *mrp); | |
1007 | int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, | |
1008 | const struct switchdev_obj_ring_role_mrp *mrp); | |
1009 | int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, | |
1010 | const struct switchdev_obj_ring_role_mrp *mrp); | |
5da11eb4 VO |
1011 | |
1012 | /* | |
1013 | * tag_8021q operations | |
1014 | */ | |
1015 | int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, | |
1016 | u16 flags); | |
1017 | int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); | |
6b297524 AL |
1018 | }; |
1019 | ||
1020 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ | |
1021 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ | |
1022 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) | |
1023 | ||
1024 | int dsa_devlink_param_get(struct devlink *dl, u32 id, | |
1025 | struct devlink_param_gset_ctx *ctx); | |
1026 | int dsa_devlink_param_set(struct devlink *dl, u32 id, | |
1027 | struct devlink_param_gset_ctx *ctx); | |
1028 | int dsa_devlink_params_register(struct dsa_switch *ds, | |
1029 | const struct devlink_param *params, | |
1030 | size_t params_count); | |
1031 | void dsa_devlink_params_unregister(struct dsa_switch *ds, | |
1032 | const struct devlink_param *params, | |
1033 | size_t params_count); | |
5cd73fbd AL |
1034 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
1035 | const char *resource_name, | |
1036 | u64 resource_size, | |
1037 | u64 resource_id, | |
1038 | u64 parent_resource_id, | |
1039 | const struct devlink_resource_size_params *size_params); | |
1040 | ||
1041 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); | |
1042 | ||
1043 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, | |
1044 | u64 resource_id, | |
1045 | devlink_resource_occ_get_t *occ_get, | |
1046 | void *occ_get_priv); | |
1047 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, | |
1048 | u64 resource_id); | |
97c82c23 AL |
1049 | struct devlink_region * |
1050 | dsa_devlink_region_create(struct dsa_switch *ds, | |
1051 | const struct devlink_region_ops *ops, | |
1052 | u32 region_max_snapshots, u64 region_size); | |
08156ba4 AL |
1053 | struct devlink_region * |
1054 | dsa_devlink_port_region_create(struct dsa_switch *ds, | |
1055 | int port, | |
1056 | const struct devlink_port_region_ops *ops, | |
1057 | u32 region_max_snapshots, u64 region_size); | |
97c82c23 AL |
1058 | void dsa_devlink_region_destroy(struct devlink_region *region); |
1059 | ||
e1eea811 | 1060 | struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); |
5cd73fbd | 1061 | |
6b297524 AL |
1062 | struct dsa_devlink_priv { |
1063 | struct dsa_switch *ds; | |
c8f0b869 BH |
1064 | }; |
1065 | ||
ccc3e6b0 AL |
1066 | static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) |
1067 | { | |
1068 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
1069 | ||
1070 | return dl_priv->ds; | |
1071 | } | |
1072 | ||
7d1e2a10 AL |
1073 | static inline |
1074 | struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) | |
1075 | { | |
1076 | struct devlink *dl = port->devlink; | |
1077 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
1078 | ||
1079 | return dl_priv->ds; | |
1080 | } | |
1081 | ||
1082 | static inline int dsa_devlink_port_to_port(struct devlink_port *port) | |
1083 | { | |
1084 | return port->index; | |
1085 | } | |
1086 | ||
ab3d408d FF |
1087 | struct dsa_switch_driver { |
1088 | struct list_head list; | |
a82f67af | 1089 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
1090 | }; |
1091 | ||
14b89f36 | 1092 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 1093 | |
73a7ece8 | 1094 | /* Keep inline for faster access in hot path */ |
9eb8eff0 | 1095 | static inline bool netdev_uses_dsa(const struct net_device *dev) |
c6e970a0 AL |
1096 | { |
1097 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 1098 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
1099 | #endif |
1100 | return false; | |
1101 | } | |
1102 | ||
9790cf20 VO |
1103 | /* All DSA tags that push the EtherType to the right (basically all except tail |
1104 | * tags, which don't break dissection) can be treated the same from the | |
1105 | * perspective of the flow dissector. | |
1106 | * | |
1107 | * We need to return: | |
1108 | * - offset: the (B - A) difference between: | |
1109 | * A. the position of the real EtherType and | |
1110 | * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes | |
1111 | * after the normal EtherType was supposed to be) | |
1112 | * The offset in bytes is exactly equal to the tagger overhead (and half of | |
1113 | * that, in __be16 shorts). | |
1114 | * | |
1115 | * - proto: the value of the real EtherType. | |
1116 | */ | |
1117 | static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, | |
1118 | __be16 *proto, int *offset) | |
1119 | { | |
1120 | #if IS_ENABLED(CONFIG_NET_DSA) | |
1121 | const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; | |
4e500251 | 1122 | int tag_len = ops->needed_headroom; |
9790cf20 VO |
1123 | |
1124 | *offset = tag_len; | |
1125 | *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; | |
1126 | #endif | |
1127 | } | |
1128 | ||
4cfab356 FF |
1129 | #if IS_ENABLED(CONFIG_NET_DSA) |
1130 | static inline int __dsa_netdevice_ops_check(struct net_device *dev) | |
1131 | { | |
1132 | int err = -EOPNOTSUPP; | |
1133 | ||
1134 | if (!dev->dsa_ptr) | |
1135 | return err; | |
1136 | ||
1137 | if (!dev->dsa_ptr->netdev_ops) | |
1138 | return err; | |
1139 | ||
1140 | return 0; | |
1141 | } | |
1142 | ||
a7605370 AB |
1143 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1144 | int cmd) | |
4cfab356 FF |
1145 | { |
1146 | const struct dsa_netdevice_ops *ops; | |
1147 | int err; | |
1148 | ||
1149 | err = __dsa_netdevice_ops_check(dev); | |
1150 | if (err) | |
1151 | return err; | |
1152 | ||
1153 | ops = dev->dsa_ptr->netdev_ops; | |
1154 | ||
a7605370 | 1155 | return ops->ndo_eth_ioctl(dev, ifr, cmd); |
4cfab356 | 1156 | } |
4cfab356 | 1157 | #else |
a7605370 AB |
1158 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1159 | int cmd) | |
4cfab356 FF |
1160 | { |
1161 | return -EOPNOTSUPP; | |
1162 | } | |
4cfab356 FF |
1163 | #endif |
1164 | ||
83c0afae | 1165 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 1166 | int dsa_register_switch(struct dsa_switch *ds); |
0650bf52 | 1167 | void dsa_switch_shutdown(struct dsa_switch *ds); |
3b7bc1f0 | 1168 | struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |
ea825e70 FF |
1169 | #ifdef CONFIG_PM_SLEEP |
1170 | int dsa_switch_suspend(struct dsa_switch *ds); | |
1171 | int dsa_switch_resume(struct dsa_switch *ds); | |
1172 | #else | |
1173 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
1174 | { | |
1175 | return 0; | |
1176 | } | |
1177 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
1178 | { | |
1179 | return 0; | |
1180 | } | |
1181 | #endif /* CONFIG_PM_SLEEP */ | |
1182 | ||
60724d4b | 1183 | #if IS_ENABLED(CONFIG_NET_DSA) |
a5e3c9ba | 1184 | bool dsa_slave_dev_check(const struct net_device *dev); |
60724d4b | 1185 | #else |
a5e3c9ba VO |
1186 | static inline bool dsa_slave_dev_check(const struct net_device *dev) |
1187 | { | |
1188 | return false; | |
1189 | } | |
60724d4b FF |
1190 | #endif |
1191 | ||
97a69a0d | 1192 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
cf963573 FF |
1193 | int dsa_port_get_phy_strings(struct dsa_port *dp, uint8_t *data); |
1194 | int dsa_port_get_ethtool_phy_stats(struct dsa_port *dp, uint64_t *data); | |
1195 | int dsa_port_get_phy_sset_count(struct dsa_port *dp); | |
11d8f3dd | 1196 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 1197 | |
d3b8c049 AL |
1198 | struct dsa_tag_driver { |
1199 | const struct dsa_device_ops *ops; | |
1200 | struct list_head list; | |
1201 | struct module *owner; | |
1202 | }; | |
1203 | ||
1204 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1205 | unsigned int count, | |
1206 | struct module *owner); | |
1207 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1208 | unsigned int count); | |
1209 | ||
1210 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
1211 | static int __init dsa_tag_driver_module_init(void) \ | |
1212 | { \ | |
1213 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
1214 | THIS_MODULE); \ | |
1215 | return 0; \ | |
1216 | } \ | |
1217 | module_init(dsa_tag_driver_module_init); \ | |
1218 | \ | |
1219 | static void __exit dsa_tag_driver_module_exit(void) \ | |
1220 | { \ | |
1221 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
1222 | } \ | |
1223 | module_exit(dsa_tag_driver_module_exit) | |
1224 | ||
1225 | /** | |
1226 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
1227 | * drivers | |
1228 | * @__ops_array: Array of tag driver strucutres | |
1229 | * | |
1230 | * Helper macro for DSA tag drivers which do not do anything special | |
1231 | * in module init/exit. Each module may only use this macro once, and | |
1232 | * calling it replaces module_init() and module_exit(). | |
1233 | */ | |
1234 | #define module_dsa_tag_drivers(__ops_array) \ | |
1235 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
1236 | ||
1237 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
1238 | ||
1239 | /* Create a static structure we can build a linked list of dsa_tag | |
1240 | * drivers | |
1241 | */ | |
1242 | #define DSA_TAG_DRIVER(__ops) \ | |
1243 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
1244 | .ops = &__ops, \ | |
1245 | } | |
1246 | ||
1247 | /** | |
1248 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
1249 | * driver | |
1250 | * @__ops: Single tag driver structures | |
1251 | * | |
1252 | * Helper macro for DSA tag drivers which do not do anything special | |
1253 | * in module init/exit. Each module may only use this macro once, and | |
1254 | * calling it replaces module_init() and module_exit(). | |
1255 | */ | |
1256 | #define module_dsa_tag_driver(__ops) \ | |
1257 | DSA_TAG_DRIVER(__ops); \ | |
1258 | \ | |
1259 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
1260 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
1261 | }; \ | |
1262 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 1263 | #endif |
d3b8c049 | 1264 |