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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 |
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); | |
7f297314 VO |
91 | int (*connect)(struct dsa_switch *ds); |
92 | void (*disconnect)(struct dsa_switch *ds); | |
4e500251 VO |
93 | unsigned int needed_headroom; |
94 | unsigned int needed_tailroom; | |
875138f8 | 95 | const char *name; |
056eed2f | 96 | enum dsa_tag_protocol proto; |
c3975400 VO |
97 | /* Some tagging protocols either mangle or shift the destination MAC |
98 | * address, in which case the DSA master would drop packets on ingress | |
99 | * if what it understands out of the destination MAC address is not in | |
100 | * its RX filter. | |
101 | */ | |
102 | bool promisc_on_master; | |
68277a2c JC |
103 | }; |
104 | ||
4cfab356 FF |
105 | /* This structure defines the control interfaces that are overlayed by the |
106 | * DSA layer on top of the DSA CPU/management net_device instance. This is | |
107 | * used by the core net_device layer while calling various net_device_ops | |
108 | * function pointers. | |
109 | */ | |
110 | struct dsa_netdevice_ops { | |
a7605370 AB |
111 | int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, |
112 | int cmd); | |
4cfab356 FF |
113 | }; |
114 | ||
0b42f033 AL |
115 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
116 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
117 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
118 | ||
dedd6a00 VO |
119 | struct dsa_lag { |
120 | struct net_device *dev; | |
121 | unsigned int id; | |
e212fa7c VO |
122 | struct mutex fdb_lock; |
123 | struct list_head fdbs; | |
dedd6a00 VO |
124 | refcount_t refcount; |
125 | }; | |
126 | ||
cf50dcc2 | 127 | struct dsa_switch_tree { |
83c0afae AL |
128 | struct list_head list; |
129 | ||
b035c88c VO |
130 | /* List of switch ports */ |
131 | struct list_head ports; | |
132 | ||
f515f192 VD |
133 | /* Notifier chain for switch-wide events */ |
134 | struct raw_notifier_head nh; | |
135 | ||
83c0afae | 136 | /* Tree identifier */ |
49463b7f | 137 | unsigned int index; |
83c0afae AL |
138 | |
139 | /* Number of switches attached to this tree */ | |
140 | struct kref refcount; | |
141 | ||
b035c88c VO |
142 | /* Maps offloaded LAG netdevs to a zero-based linear ID for |
143 | * drivers that need it. | |
144 | */ | |
dedd6a00 | 145 | struct dsa_lag **lags; |
b035c88c | 146 | |
357f203b VO |
147 | /* Tagging protocol operations */ |
148 | const struct dsa_device_ops *tag_ops; | |
149 | ||
deff7107 TW |
150 | /* Default tagging protocol preferred by the switches in this |
151 | * tree. | |
152 | */ | |
153 | enum dsa_tag_protocol default_proto; | |
154 | ||
4b026e82 VO |
155 | /* Has this tree been applied to the hardware? */ |
156 | bool setup; | |
157 | ||
cf50dcc2 BH |
158 | /* |
159 | * Configuration data for the platform device that owns | |
160 | * this dsa switch tree instance. | |
161 | */ | |
162 | struct dsa_platform_data *pd; | |
163 | ||
c5f51765 VD |
164 | /* List of DSA links composing the routing table */ |
165 | struct list_head rtable; | |
058102a6 | 166 | |
b035c88c | 167 | /* Length of "lags" array */ |
058102a6 | 168 | unsigned int lags_len; |
5b22d366 VO |
169 | |
170 | /* Track the largest switch index within a tree */ | |
171 | unsigned int last_switch; | |
cf50dcc2 BH |
172 | }; |
173 | ||
3d4a0a2a | 174 | /* LAG IDs are one-based, the dst->lags array is zero-based */ |
058102a6 | 175 | #define dsa_lags_foreach_id(_id, _dst) \ |
3d4a0a2a VO |
176 | for ((_id) = 1; (_id) <= (_dst)->lags_len; (_id)++) \ |
177 | if ((_dst)->lags[(_id) - 1]) | |
058102a6 TW |
178 | |
179 | #define dsa_lag_foreach_port(_dp, _dst, _lag) \ | |
180 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
dedd6a00 | 181 | if (dsa_port_offloads_lag((_dp), (_lag))) |
058102a6 | 182 | |
18596f50 GM |
183 | #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ |
184 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
185 | if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) | |
186 | ||
dedd6a00 VO |
187 | static inline struct dsa_lag *dsa_lag_by_id(struct dsa_switch_tree *dst, |
188 | unsigned int id) | |
058102a6 | 189 | { |
3d4a0a2a VO |
190 | /* DSA LAG IDs are one-based, dst->lags is zero-based */ |
191 | return dst->lags[id - 1]; | |
058102a6 TW |
192 | } |
193 | ||
194 | static inline int dsa_lag_id(struct dsa_switch_tree *dst, | |
46a76724 | 195 | struct net_device *lag_dev) |
058102a6 TW |
196 | { |
197 | unsigned int id; | |
198 | ||
199 | dsa_lags_foreach_id(id, dst) { | |
dedd6a00 VO |
200 | struct dsa_lag *lag = dsa_lag_by_id(dst, id); |
201 | ||
202 | if (lag->dev == lag_dev) | |
203 | return lag->id; | |
058102a6 TW |
204 | } |
205 | ||
206 | return -ENODEV; | |
207 | } | |
208 | ||
34297176 | 209 | /* TC matchall action types */ |
f50f2127 FF |
210 | enum dsa_port_mall_action_type { |
211 | DSA_PORT_MALL_MIRROR, | |
34297176 | 212 | DSA_PORT_MALL_POLICER, |
f50f2127 FF |
213 | }; |
214 | ||
215 | /* TC mirroring entry */ | |
216 | struct dsa_mall_mirror_tc_entry { | |
217 | u8 to_local_port; | |
218 | bool ingress; | |
219 | }; | |
220 | ||
34297176 VO |
221 | /* TC port policer entry */ |
222 | struct dsa_mall_policer_tc_entry { | |
5f035af7 | 223 | u32 burst; |
34297176 VO |
224 | u64 rate_bytes_per_sec; |
225 | }; | |
226 | ||
f50f2127 FF |
227 | /* TC matchall entry */ |
228 | struct dsa_mall_tc_entry { | |
229 | struct list_head list; | |
230 | unsigned long cookie; | |
231 | enum dsa_port_mall_action_type type; | |
232 | union { | |
233 | struct dsa_mall_mirror_tc_entry mirror; | |
34297176 | 234 | struct dsa_mall_policer_tc_entry policer; |
f50f2127 FF |
235 | }; |
236 | }; | |
237 | ||
d3eed0e5 VO |
238 | struct dsa_bridge { |
239 | struct net_device *dev; | |
240 | unsigned int num; | |
857fdd74 | 241 | bool tx_fwd_offload; |
d3eed0e5 VO |
242 | refcount_t refcount; |
243 | }; | |
f50f2127 | 244 | |
c8b09808 | 245 | struct dsa_port { |
f8b8b1cd VD |
246 | /* A CPU port is physically connected to a master device. |
247 | * A user port exposed to userspace has a slave device. | |
248 | */ | |
249 | union { | |
250 | struct net_device *master; | |
251 | struct net_device *slave; | |
252 | }; | |
253 | ||
357f203b VO |
254 | /* Copy of the tagging protocol operations, for quicker access |
255 | * in the data path. Valid only for the CPU ports. | |
256 | */ | |
15240248 VD |
257 | const struct dsa_device_ops *tag_ops; |
258 | ||
3e41f93b VD |
259 | /* Copies for faster access in master receive hot path */ |
260 | struct dsa_switch_tree *dst; | |
29a097b7 | 261 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 262 | |
06251258 VO |
263 | struct dsa_switch *ds; |
264 | ||
265 | unsigned int index; | |
266 | ||
057cad2c VD |
267 | enum { |
268 | DSA_PORT_TYPE_UNUSED = 0, | |
269 | DSA_PORT_TYPE_CPU, | |
270 | DSA_PORT_TYPE_DSA, | |
271 | DSA_PORT_TYPE_USER, | |
272 | } type; | |
273 | ||
71e0bbde | 274 | const char *name; |
68b2d4a8 | 275 | struct dsa_port *cpu_dp; |
83216e39 | 276 | u8 mac[ETH_ALEN]; |
b08db33d VO |
277 | |
278 | u8 stp_state; | |
279 | ||
1b26d364 VO |
280 | /* Warning: the following bit fields are not atomic, and updating them |
281 | * can only be done from code paths where concurrency is not possible | |
282 | * (probe time or under rtnl_lock). | |
283 | */ | |
63cfc657 VO |
284 | u8 vlan_filtering:1; |
285 | ||
286 | /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ | |
287 | u8 learning:1; | |
288 | ||
289 | u8 lag_tx_enabled:1; | |
290 | ||
291 | u8 devlink_port_setup:1; | |
292 | ||
295ab96f VO |
293 | /* Master state bits, valid only on CPU ports */ |
294 | u8 master_admin_up:1; | |
295 | u8 master_oper_up:1; | |
296 | ||
63cfc657 | 297 | u8 setup:1; |
bde82f38 | 298 | |
189b0d93 | 299 | struct device_node *dn; |
34a79f63 | 300 | unsigned int ageing_time; |
bde82f38 | 301 | |
d3eed0e5 | 302 | struct dsa_bridge *bridge; |
96567d5d | 303 | struct devlink_port devlink_port; |
aab9c406 | 304 | struct phylink *pl; |
44cc27e4 | 305 | struct phylink_config pl_config; |
dedd6a00 | 306 | struct dsa_lag *lag; |
18596f50 | 307 | struct net_device *hsr_dev; |
97a69a0d | 308 | |
ab8ccae1 VD |
309 | struct list_head list; |
310 | ||
67dbb9d4 FF |
311 | /* |
312 | * Original copy of the master netdev ethtool_ops | |
313 | */ | |
67dbb9d4 | 314 | const struct ethtool_ops *orig_ethtool_ops; |
da7b9e9b FF |
315 | |
316 | /* | |
317 | * Original copy of the master netdev net_device_ops | |
318 | */ | |
4cfab356 | 319 | const struct dsa_netdevice_ops *netdev_ops; |
fb35c60c | 320 | |
161ca59d VO |
321 | /* List of MAC addresses that must be forwarded on this port. |
322 | * These are only valid on CPU ports and DSA links. | |
323 | */ | |
338a3a47 | 324 | struct mutex addr_lists_lock; |
3f6e32f9 | 325 | struct list_head fdbs; |
161ca59d | 326 | struct list_head mdbs; |
134ef238 VO |
327 | |
328 | /* List of VLANs that CPU and DSA ports are members of. */ | |
329 | struct mutex vlans_lock; | |
330 | struct list_head vlans; | |
c8b09808 AL |
331 | }; |
332 | ||
c5f51765 VD |
333 | /* TODO: ideally DSA ports would have a single dp->link_dp member, |
334 | * and no dst->rtable nor this struct dsa_link would be needed, | |
335 | * but this would require some more complex tree walking, | |
336 | * so keep it stupid at the moment and list them all. | |
337 | */ | |
338 | struct dsa_link { | |
339 | struct dsa_port *dp; | |
340 | struct dsa_port *link_dp; | |
341 | struct list_head list; | |
342 | }; | |
343 | ||
c2693363 VO |
344 | enum dsa_db_type { |
345 | DSA_DB_PORT, | |
346 | DSA_DB_LAG, | |
347 | DSA_DB_BRIDGE, | |
348 | }; | |
349 | ||
350 | struct dsa_db { | |
351 | enum dsa_db_type type; | |
352 | ||
353 | union { | |
354 | const struct dsa_port *dp; | |
355 | struct dsa_lag lag; | |
356 | struct dsa_bridge bridge; | |
357 | }; | |
358 | }; | |
359 | ||
161ca59d VO |
360 | struct dsa_mac_addr { |
361 | unsigned char addr[ETH_ALEN]; | |
362 | u16 vid; | |
363 | refcount_t refcount; | |
364 | struct list_head list; | |
c2693363 | 365 | struct dsa_db db; |
161ca59d VO |
366 | }; |
367 | ||
134ef238 VO |
368 | struct dsa_vlan { |
369 | u16 vid; | |
370 | refcount_t refcount; | |
371 | struct list_head list; | |
372 | }; | |
373 | ||
c8f0b869 | 374 | struct dsa_switch { |
c33063d6 AL |
375 | struct device *dev; |
376 | ||
c8f0b869 BH |
377 | /* |
378 | * Parent switch tree, and switch index. | |
379 | */ | |
380 | struct dsa_switch_tree *dst; | |
99feaafc | 381 | unsigned int index; |
c8f0b869 | 382 | |
1b26d364 VO |
383 | /* Warning: the following bit fields are not atomic, and updating them |
384 | * can only be done from code paths where concurrency is not possible | |
385 | * (probe time or under rtnl_lock). | |
386 | */ | |
63cfc657 VO |
387 | u32 setup:1; |
388 | ||
389 | /* Disallow bridge core from requesting different VLAN awareness | |
390 | * settings on ports if not hardware-supported | |
391 | */ | |
392 | u32 vlan_filtering_is_global:1; | |
393 | ||
394 | /* Keep VLAN filtering enabled on ports not offloading any upper */ | |
395 | u32 needs_standalone_vlan_filtering:1; | |
396 | ||
397 | /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges | |
398 | * that have vlan_filtering=0. All drivers should ideally set this (and | |
399 | * then the option would get removed), but it is unknown whether this | |
400 | * would break things or not. | |
401 | */ | |
402 | u32 configure_vlan_while_not_filtering:1; | |
403 | ||
404 | /* If the switch driver always programs the CPU port as egress tagged | |
405 | * despite the VLAN configuration indicating otherwise, then setting | |
406 | * @untag_bridge_pvid will force the DSA receive path to pop the | |
407 | * bridge's default_pvid VLAN tagged frames to offer a consistent | |
408 | * behavior between a vlan_filtering=0 and vlan_filtering=1 bridge | |
409 | * device. | |
410 | */ | |
411 | u32 untag_bridge_pvid:1; | |
412 | ||
413 | /* Let DSA manage the FDB entries towards the | |
414 | * CPU, based on the software bridge database. | |
415 | */ | |
416 | u32 assisted_learning_on_cpu_port:1; | |
417 | ||
418 | /* In case vlan_filtering_is_global is set, the VLAN awareness state | |
419 | * should be retrieved from here and not from the per-port settings. | |
420 | */ | |
421 | u32 vlan_filtering:1; | |
422 | ||
63cfc657 VO |
423 | /* For switches that only have the MRU configurable. To ensure the |
424 | * configured MTU is not exceeded, normalization of MRU on all bridged | |
425 | * interfaces is needed. | |
426 | */ | |
427 | u32 mtu_enforcement_ingress:1; | |
7787ff77 | 428 | |
c2693363 VO |
429 | /* Drivers that isolate the FDBs of multiple bridges must set this |
430 | * to true to receive the bridge as an argument in .port_fdb_{add,del} | |
431 | * and .port_mdb_{add,del}. Otherwise, the bridge.num will always be | |
432 | * passed as zero. | |
433 | */ | |
434 | u32 fdb_isolation:1; | |
435 | ||
f515f192 VD |
436 | /* Listener for switch fabric events */ |
437 | struct notifier_block nb; | |
438 | ||
7543a6d5 AL |
439 | /* |
440 | * Give the switch driver somewhere to hang its private data | |
441 | * structure. | |
442 | */ | |
443 | void *priv; | |
444 | ||
dc452a47 VO |
445 | void *tagger_data; |
446 | ||
c8f0b869 BH |
447 | /* |
448 | * Configuration data for this switch. | |
449 | */ | |
ff04955c | 450 | struct dsa_chip_data *cd; |
c8f0b869 BH |
451 | |
452 | /* | |
9d490b4e | 453 | * The switch operations. |
c8f0b869 | 454 | */ |
a82f67af | 455 | const struct dsa_switch_ops *ops; |
c8f0b869 | 456 | |
c8f0b869 BH |
457 | /* |
458 | * Slave mii_bus and devices for the individual ports. | |
459 | */ | |
0d8bcdd3 | 460 | u32 phys_mii_mask; |
c8f0b869 | 461 | struct mii_bus *slave_mii_bus; |
a0c02161 | 462 | |
0f3da6af VD |
463 | /* Ageing Time limits in msecs */ |
464 | unsigned int ageing_time_min; | |
465 | unsigned int ageing_time_max; | |
466 | ||
d7b1fd52 VO |
467 | /* Storage for drivers using tag_8021q */ |
468 | struct dsa_8021q_context *tag_8021q_ctx; | |
469 | ||
96567d5d AL |
470 | /* devlink used to represent this switch device */ |
471 | struct devlink *devlink; | |
472 | ||
55199df6 FF |
473 | /* Number of switch port queues */ |
474 | unsigned int num_tx_queues; | |
475 | ||
058102a6 TW |
476 | /* Drivers that benefit from having an ID associated with each |
477 | * offloaded LAG should set this to the maximum number of | |
478 | * supported IDs. DSA will then maintain a mapping of _at | |
479 | * least_ these many IDs, accessible to drivers via | |
480 | * dsa_lag_id(). | |
481 | */ | |
482 | unsigned int num_lag_ids; | |
483 | ||
947c8746 VO |
484 | /* Drivers that support bridge forwarding offload or FDB isolation |
485 | * should set this to the maximum number of bridges spanning the same | |
486 | * switch tree (or all trees, in the case of cross-tree bridging | |
487 | * support) that can be offloaded. | |
123abc06 | 488 | */ |
947c8746 | 489 | unsigned int max_num_bridges; |
123abc06 | 490 | |
258030ac | 491 | unsigned int num_ports; |
c8f0b869 BH |
492 | }; |
493 | ||
68bb8ea8 | 494 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 495 | { |
b96ddf25 | 496 | struct dsa_switch_tree *dst = ds->dst; |
d607525b | 497 | struct dsa_port *dp; |
b96ddf25 VD |
498 | |
499 | list_for_each_entry(dp, &dst->ports, list) | |
500 | if (dp->ds == ds && dp->index == p) | |
d607525b | 501 | return dp; |
b96ddf25 | 502 | |
d607525b | 503 | return NULL; |
c38c5a66 | 504 | } |
bff7b688 | 505 | |
a8986681 VO |
506 | static inline bool dsa_port_is_dsa(struct dsa_port *port) |
507 | { | |
508 | return port->type == DSA_PORT_TYPE_DSA; | |
509 | } | |
510 | ||
511 | static inline bool dsa_port_is_cpu(struct dsa_port *port) | |
512 | { | |
513 | return port->type == DSA_PORT_TYPE_CPU; | |
514 | } | |
515 | ||
516 | static inline bool dsa_port_is_user(struct dsa_port *dp) | |
517 | { | |
518 | return dp->type == DSA_PORT_TYPE_USER; | |
519 | } | |
520 | ||
a57d8c21 VO |
521 | static inline bool dsa_port_is_unused(struct dsa_port *dp) |
522 | { | |
523 | return dp->type == DSA_PORT_TYPE_UNUSED; | |
524 | } | |
525 | ||
295ab96f VO |
526 | static inline bool dsa_port_master_is_operational(struct dsa_port *dp) |
527 | { | |
528 | return dsa_port_is_cpu(dp) && dp->master_admin_up && | |
529 | dp->master_oper_up; | |
530 | } | |
531 | ||
c38c5a66 VD |
532 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
533 | { | |
534 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
535 | } |
536 | ||
c8f0b869 BH |
537 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
538 | { | |
c38c5a66 | 539 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
540 | } |
541 | ||
60045cbf AL |
542 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
543 | { | |
c38c5a66 | 544 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
545 | } |
546 | ||
2b3e9891 | 547 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 548 | { |
c38c5a66 | 549 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
550 | } |
551 | ||
82b31898 VO |
552 | #define dsa_tree_for_each_user_port(_dp, _dst) \ |
553 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
554 | if (dsa_port_is_user((_dp))) | |
555 | ||
556 | #define dsa_switch_for_each_port(_dp, _ds) \ | |
557 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
558 | if ((_dp)->ds == (_ds)) | |
559 | ||
560 | #define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ | |
561 | list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ | |
562 | if ((_dp)->ds == (_ds)) | |
563 | ||
564 | #define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ | |
565 | list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ | |
566 | if ((_dp)->ds == (_ds)) | |
567 | ||
568 | #define dsa_switch_for_each_available_port(_dp, _ds) \ | |
569 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
570 | if (!dsa_port_is_unused((_dp))) | |
571 | ||
572 | #define dsa_switch_for_each_user_port(_dp, _ds) \ | |
573 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
574 | if (dsa_port_is_user((_dp))) | |
575 | ||
576 | #define dsa_switch_for_each_cpu_port(_dp, _ds) \ | |
577 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
578 | if (dsa_port_is_cpu((_dp))) | |
579 | ||
02bc6e54 VD |
580 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
581 | { | |
d0004a02 | 582 | struct dsa_port *dp; |
c38c5a66 | 583 | u32 mask = 0; |
02bc6e54 | 584 | |
d0004a02 VO |
585 | dsa_switch_for_each_user_port(dp, ds) |
586 | mask |= BIT(dp->index); | |
c38c5a66 VD |
587 | |
588 | return mask; | |
c8652c83 VD |
589 | } |
590 | ||
c5f51765 VD |
591 | /* Return the local port used to reach an arbitrary switch device */ |
592 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) | |
593 | { | |
594 | struct dsa_switch_tree *dst = ds->dst; | |
595 | struct dsa_link *dl; | |
596 | ||
597 | list_for_each_entry(dl, &dst->rtable, list) | |
598 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) | |
599 | return dl->dp->index; | |
600 | ||
601 | return ds->num_ports; | |
602 | } | |
603 | ||
3b8fac5d VD |
604 | /* Return the local port used to reach an arbitrary switch port */ |
605 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
606 | int port) | |
607 | { | |
608 | if (device == ds->index) | |
609 | return port; | |
610 | else | |
c5f51765 | 611 | return dsa_routing_port(ds, device); |
3b8fac5d VD |
612 | } |
613 | ||
614 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 615 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 616 | { |
07073c79 VD |
617 | const struct dsa_port *dp = dsa_to_port(ds, port); |
618 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
619 | ||
620 | if (!cpu_dp) | |
621 | return port; | |
c8f0b869 | 622 | |
3b8fac5d | 623 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
624 | } |
625 | ||
63609c8f VO |
626 | /* Return true if this is the local port used to reach the CPU port */ |
627 | static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) | |
628 | { | |
629 | if (dsa_is_unused_port(ds, port)) | |
630 | return false; | |
631 | ||
632 | return port == dsa_upstream_port(ds, port); | |
633 | } | |
634 | ||
d352b20f TW |
635 | /* Return true if this is a DSA port leading away from the CPU */ |
636 | static inline bool dsa_is_downstream_port(struct dsa_switch *ds, int port) | |
637 | { | |
638 | return dsa_is_dsa_port(ds, port) && !dsa_is_upstream_port(ds, port); | |
639 | } | |
640 | ||
7af4a361 TW |
641 | /* Return the local port used to reach the CPU port */ |
642 | static inline unsigned int dsa_switch_upstream_port(struct dsa_switch *ds) | |
643 | { | |
644 | struct dsa_port *dp; | |
645 | ||
646 | dsa_switch_for_each_available_port(dp, ds) { | |
647 | return dsa_upstream_port(ds, dp->index); | |
648 | } | |
649 | ||
650 | return ds->num_ports; | |
651 | } | |
652 | ||
63609c8f VO |
653 | /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning |
654 | * that the routing port from @downstream_ds to @upstream_ds is also the port | |
655 | * which @downstream_ds uses to reach its dedicated CPU. | |
656 | */ | |
657 | static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, | |
658 | struct dsa_switch *downstream_ds) | |
659 | { | |
660 | int routing_port; | |
661 | ||
662 | if (upstream_ds == downstream_ds) | |
663 | return true; | |
664 | ||
665 | routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); | |
666 | ||
667 | return dsa_is_upstream_port(downstream_ds, routing_port); | |
668 | } | |
669 | ||
cf2d45f5 VO |
670 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
671 | { | |
672 | const struct dsa_switch *ds = dp->ds; | |
673 | ||
674 | if (ds->vlan_filtering_is_global) | |
675 | return ds->vlan_filtering; | |
676 | else | |
677 | return dp->vlan_filtering; | |
678 | } | |
679 | ||
dedd6a00 VO |
680 | static inline unsigned int dsa_port_lag_id_get(struct dsa_port *dp) |
681 | { | |
682 | return dp->lag ? dp->lag->id : 0; | |
683 | } | |
684 | ||
685 | static inline struct net_device *dsa_port_lag_dev_get(struct dsa_port *dp) | |
686 | { | |
687 | return dp->lag ? dp->lag->dev : NULL; | |
688 | } | |
689 | ||
690 | static inline bool dsa_port_offloads_lag(struct dsa_port *dp, | |
691 | const struct dsa_lag *lag) | |
692 | { | |
693 | return dsa_port_lag_dev_get(dp) == lag->dev; | |
694 | } | |
695 | ||
cc76ce9e TW |
696 | static inline |
697 | struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) | |
698 | { | |
d3eed0e5 | 699 | if (!dp->bridge) |
cc76ce9e TW |
700 | return NULL; |
701 | ||
dedd6a00 VO |
702 | if (dp->lag) |
703 | return dp->lag->dev; | |
cc76ce9e TW |
704 | else if (dp->hsr_dev) |
705 | return dp->hsr_dev; | |
706 | ||
707 | return dp->slave; | |
708 | } | |
709 | ||
36cbf39b VO |
710 | static inline struct net_device * |
711 | dsa_port_bridge_dev_get(const struct dsa_port *dp) | |
712 | { | |
d3eed0e5 | 713 | return dp->bridge ? dp->bridge->dev : NULL; |
36cbf39b VO |
714 | } |
715 | ||
716 | static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) | |
717 | { | |
d3eed0e5 | 718 | return dp->bridge ? dp->bridge->num : 0; |
36cbf39b VO |
719 | } |
720 | ||
721 | static inline bool dsa_port_bridge_same(const struct dsa_port *a, | |
722 | const struct dsa_port *b) | |
723 | { | |
724 | struct net_device *br_a = dsa_port_bridge_dev_get(a); | |
725 | struct net_device *br_b = dsa_port_bridge_dev_get(b); | |
726 | ||
727 | /* Standalone ports are not in the same bridge with one another */ | |
728 | return (!br_a || !br_b) ? false : (br_a == br_b); | |
729 | } | |
730 | ||
6a43cba3 VO |
731 | static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, |
732 | const struct net_device *dev) | |
733 | { | |
734 | return dsa_port_to_bridge_port(dp) == dev; | |
735 | } | |
736 | ||
737 | static inline bool | |
738 | dsa_port_offloads_bridge_dev(struct dsa_port *dp, | |
739 | const struct net_device *bridge_dev) | |
740 | { | |
741 | /* DSA ports connected to a bridge, and event was emitted | |
742 | * for the bridge. | |
743 | */ | |
744 | return dsa_port_bridge_dev_get(dp) == bridge_dev; | |
745 | } | |
746 | ||
d3eed0e5 VO |
747 | static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, |
748 | const struct dsa_bridge *bridge) | |
749 | { | |
750 | return dsa_port_bridge_dev_get(dp) == bridge->dev; | |
751 | } | |
752 | ||
6a43cba3 VO |
753 | /* Returns true if any port of this tree offloads the given net_device */ |
754 | static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, | |
755 | const struct net_device *dev) | |
756 | { | |
757 | struct dsa_port *dp; | |
758 | ||
759 | list_for_each_entry(dp, &dst->ports, list) | |
760 | if (dsa_port_offloads_bridge_port(dp, dev)) | |
761 | return true; | |
762 | ||
763 | return false; | |
764 | } | |
765 | ||
766 | /* Returns true if any port of this tree offloads the given bridge */ | |
767 | static inline bool | |
768 | dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, | |
769 | const struct net_device *bridge_dev) | |
770 | { | |
771 | struct dsa_port *dp; | |
772 | ||
773 | list_for_each_entry(dp, &dst->ports, list) | |
774 | if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) | |
775 | return true; | |
776 | ||
777 | return false; | |
778 | } | |
779 | ||
2bedde1a AS |
780 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
781 | bool is_static, void *data); | |
9d490b4e | 782 | struct dsa_switch_ops { |
53da0eba VO |
783 | /* |
784 | * Tagging protocol helpers called for the CPU ports and DSA links. | |
785 | * @get_tag_protocol retrieves the initial tagging protocol and is | |
786 | * mandatory. Switches which can operate using multiple tagging | |
787 | * protocols should implement @change_tag_protocol and report in | |
788 | * @get_tag_protocol the tagger in current use. | |
789 | */ | |
5ed4e3eb | 790 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
4d776482 FF |
791 | int port, |
792 | enum dsa_tag_protocol mprot); | |
53da0eba VO |
793 | int (*change_tag_protocol)(struct dsa_switch *ds, int port, |
794 | enum dsa_tag_protocol proto); | |
dc452a47 VO |
795 | /* |
796 | * Method for switch drivers to connect to the tagging protocol driver | |
797 | * in current use. The switch driver can provide handlers for certain | |
798 | * types of packets for switch management. | |
799 | */ | |
800 | int (*connect_tag_protocol)(struct dsa_switch *ds, | |
801 | enum dsa_tag_protocol proto); | |
7b314362 | 802 | |
fd292c18 | 803 | /* Optional switch-wide initialization and destruction methods */ |
c8f0b869 | 804 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 805 | void (*teardown)(struct dsa_switch *ds); |
fd292c18 VO |
806 | |
807 | /* Per-port initialization and destruction methods. Mandatory if the | |
808 | * driver registers devlink port regions, optional otherwise. | |
809 | */ | |
810 | int (*port_setup)(struct dsa_switch *ds, int port); | |
811 | void (*port_teardown)(struct dsa_switch *ds, int port); | |
812 | ||
6819563e | 813 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
814 | |
815 | /* | |
816 | * Access to the switch's PHY registers. | |
817 | */ | |
818 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
819 | int (*phy_write)(struct dsa_switch *ds, int port, | |
820 | int regnum, u16 val); | |
821 | ||
ec9436ba FF |
822 | /* |
823 | * Link state adjustment (called from libphy) | |
824 | */ | |
825 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
826 | struct phy_device *phydev); | |
ce31b31c FF |
827 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
828 | struct fixed_phy_status *st); | |
ec9436ba | 829 | |
11d8f3dd FF |
830 | /* |
831 | * PHYLINK integration | |
832 | */ | |
072eea6c RKO |
833 | void (*phylink_get_caps)(struct dsa_switch *ds, int port, |
834 | struct phylink_config *config); | |
11d8f3dd FF |
835 | void (*phylink_validate)(struct dsa_switch *ds, int port, |
836 | unsigned long *supported, | |
837 | struct phylink_link_state *state); | |
bde01822 RKO |
838 | struct phylink_pcs *(*phylink_mac_select_pcs)(struct dsa_switch *ds, |
839 | int port, | |
840 | phy_interface_t iface); | |
11d8f3dd FF |
841 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, |
842 | struct phylink_link_state *state); | |
843 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
844 | unsigned int mode, | |
845 | const struct phylink_link_state *state); | |
846 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
847 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
848 | unsigned int mode, | |
849 | phy_interface_t interface); | |
850 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
851 | unsigned int mode, | |
852 | phy_interface_t interface, | |
5b502a7b RK |
853 | struct phy_device *phydev, |
854 | int speed, int duplex, | |
855 | bool tx_pause, bool rx_pause); | |
11d8f3dd FF |
856 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, |
857 | struct phylink_link_state *state); | |
c8f0b869 | 858 | /* |
c2ec5f2e | 859 | * Port statistics counters. |
c8f0b869 | 860 | */ |
89f09048 FF |
861 | void (*get_strings)(struct dsa_switch *ds, int port, |
862 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
863 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
864 | int port, uint64_t *data); | |
89f09048 | 865 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
866 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
867 | int port, uint64_t *data); | |
487d3855 AŠ |
868 | void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, |
869 | struct ethtool_eth_phy_stats *phy_stats); | |
870 | void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, | |
871 | struct ethtool_eth_mac_stats *mac_stats); | |
872 | void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, | |
873 | struct ethtool_eth_ctrl_stats *ctrl_stats); | |
c2ec5f2e OR |
874 | void (*get_stats64)(struct dsa_switch *ds, int port, |
875 | struct rtnl_link_stats64 *s); | |
a71acad9 OR |
876 | void (*self_test)(struct dsa_switch *ds, int port, |
877 | struct ethtool_test *etest, u64 *data); | |
24462549 | 878 | |
19e57c4e FF |
879 | /* |
880 | * ethtool Wake-on-LAN | |
881 | */ | |
882 | void (*get_wol)(struct dsa_switch *ds, int port, | |
883 | struct ethtool_wolinfo *w); | |
884 | int (*set_wol)(struct dsa_switch *ds, int port, | |
885 | struct ethtool_wolinfo *w); | |
886 | ||
0336369d BS |
887 | /* |
888 | * ethtool timestamp info | |
889 | */ | |
890 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
891 | struct ethtool_ts_info *ts); | |
892 | ||
24462549 FF |
893 | /* |
894 | * Suspend and resume | |
895 | */ | |
896 | int (*suspend)(struct dsa_switch *ds); | |
897 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
898 | |
899 | /* | |
900 | * Port enable/disable | |
901 | */ | |
902 | int (*port_enable)(struct dsa_switch *ds, int port, | |
903 | struct phy_device *phy); | |
75104db0 | 904 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
905 | |
906 | /* | |
08f50061 | 907 | * Port's MAC EEE settings |
7905288f | 908 | */ |
08f50061 VD |
909 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
910 | struct ethtool_eee *e); | |
911 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
912 | struct ethtool_eee *e); | |
51579c3f | 913 | |
6793abb4 GR |
914 | /* EEPROM access */ |
915 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
916 | int (*get_eeprom)(struct dsa_switch *ds, | |
917 | struct ethtool_eeprom *eeprom, u8 *data); | |
918 | int (*set_eeprom)(struct dsa_switch *ds, | |
919 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
920 | |
921 | /* | |
922 | * Register access. | |
923 | */ | |
924 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
925 | void (*get_regs)(struct dsa_switch *ds, int port, | |
926 | struct ethtool_regs *regs, void *p); | |
b73adef6 | 927 | |
e358bef7 VO |
928 | /* |
929 | * Upper device tracking. | |
930 | */ | |
931 | int (*port_prechangeupper)(struct dsa_switch *ds, int port, | |
932 | struct netdev_notifier_changeupper_info *info); | |
933 | ||
b73adef6 FF |
934 | /* |
935 | * Bridge integration | |
936 | */ | |
34a79f63 | 937 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 938 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
b079922b | 939 | struct dsa_bridge bridge, |
06b9cce4 VO |
940 | bool *tx_fwd_offload, |
941 | struct netlink_ext_ack *extack); | |
f123f2fb | 942 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
d3eed0e5 | 943 | struct dsa_bridge bridge); |
43c44a9f VD |
944 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
945 | u8 state); | |
732f794c | 946 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
a8b659e7 VO |
947 | int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, |
948 | struct switchdev_brport_flags flags, | |
949 | struct netlink_ext_ack *extack); | |
950 | int (*port_bridge_flags)(struct dsa_switch *ds, int port, | |
951 | struct switchdev_brport_flags flags, | |
952 | struct netlink_ext_ack *extack); | |
2a778e1b | 953 | |
11149536 VD |
954 | /* |
955 | * VLAN support | |
956 | */ | |
fb2dabad | 957 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
89153ed6 VO |
958 | bool vlan_filtering, |
959 | struct netlink_ext_ack *extack); | |
1958d581 | 960 | int (*port_vlan_add)(struct dsa_switch *ds, int port, |
31046a5f VO |
961 | const struct switchdev_obj_port_vlan *vlan, |
962 | struct netlink_ext_ack *extack); | |
76e398a6 VD |
963 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
964 | const struct switchdev_obj_port_vlan *vlan); | |
2a778e1b VD |
965 | /* |
966 | * Forwarding database | |
967 | */ | |
1b6dd556 | 968 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
c2693363 VO |
969 | const unsigned char *addr, u16 vid, |
970 | struct dsa_db db); | |
2a778e1b | 971 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
c2693363 VO |
972 | const unsigned char *addr, u16 vid, |
973 | struct dsa_db db); | |
ea70ba98 | 974 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 975 | dsa_fdb_dump_cb_t *cb, void *data); |
e212fa7c | 976 | int (*lag_fdb_add)(struct dsa_switch *ds, struct dsa_lag lag, |
c2693363 VO |
977 | const unsigned char *addr, u16 vid, |
978 | struct dsa_db db); | |
e212fa7c | 979 | int (*lag_fdb_del)(struct dsa_switch *ds, struct dsa_lag lag, |
c2693363 VO |
980 | const unsigned char *addr, u16 vid, |
981 | struct dsa_db db); | |
8df30255 VD |
982 | |
983 | /* | |
984 | * Multicast database | |
985 | */ | |
a52b2da7 | 986 | int (*port_mdb_add)(struct dsa_switch *ds, int port, |
c2693363 VO |
987 | const struct switchdev_obj_port_mdb *mdb, |
988 | struct dsa_db db); | |
8df30255 | 989 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
c2693363 VO |
990 | const struct switchdev_obj_port_mdb *mdb, |
991 | struct dsa_db db); | |
bf9f2648 FF |
992 | /* |
993 | * RXNFC | |
994 | */ | |
995 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
996 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
997 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
998 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
999 | |
1000 | /* | |
1001 | * TC integration | |
1002 | */ | |
ed11bb1f VO |
1003 | int (*cls_flower_add)(struct dsa_switch *ds, int port, |
1004 | struct flow_cls_offload *cls, bool ingress); | |
1005 | int (*cls_flower_del)(struct dsa_switch *ds, int port, | |
1006 | struct flow_cls_offload *cls, bool ingress); | |
1007 | int (*cls_flower_stats)(struct dsa_switch *ds, int port, | |
1008 | struct flow_cls_offload *cls, bool ingress); | |
f50f2127 FF |
1009 | int (*port_mirror_add)(struct dsa_switch *ds, int port, |
1010 | struct dsa_mall_mirror_tc_entry *mirror, | |
1011 | bool ingress); | |
1012 | void (*port_mirror_del)(struct dsa_switch *ds, int port, | |
1013 | struct dsa_mall_mirror_tc_entry *mirror); | |
34297176 VO |
1014 | int (*port_policer_add)(struct dsa_switch *ds, int port, |
1015 | struct dsa_mall_policer_tc_entry *policer); | |
1016 | void (*port_policer_del)(struct dsa_switch *ds, int port); | |
47d23af2 VO |
1017 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
1018 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
1019 | |
1020 | /* | |
1021 | * Cross-chip operations | |
1022 | */ | |
f66a6a69 VO |
1023 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, |
1024 | int sw_index, int port, | |
06b9cce4 VO |
1025 | struct dsa_bridge bridge, |
1026 | struct netlink_ext_ack *extack); | |
f66a6a69 VO |
1027 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, |
1028 | int sw_index, int port, | |
d3eed0e5 | 1029 | struct dsa_bridge bridge); |
058102a6 TW |
1030 | int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, |
1031 | int port); | |
1032 | int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, | |
dedd6a00 | 1033 | int port, struct dsa_lag lag, |
058102a6 TW |
1034 | struct netdev_lag_upper_info *info); |
1035 | int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, | |
dedd6a00 | 1036 | int port, struct dsa_lag lag); |
0336369d BS |
1037 | |
1038 | /* | |
1039 | * PTP functionality | |
1040 | */ | |
1041 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
1042 | struct ifreq *ifr); | |
1043 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
1044 | struct ifreq *ifr); | |
5c5416f5 YL |
1045 | void (*port_txtstamp)(struct dsa_switch *ds, int port, |
1046 | struct sk_buff *skb); | |
90af1059 BS |
1047 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, |
1048 | struct sk_buff *skb, unsigned int type); | |
97a69a0d | 1049 | |
0f06b855 | 1050 | /* Devlink parameters, etc */ |
6b297524 AL |
1051 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, |
1052 | struct devlink_param_gset_ctx *ctx); | |
1053 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, | |
1054 | struct devlink_param_gset_ctx *ctx); | |
0f06b855 AL |
1055 | int (*devlink_info_get)(struct dsa_switch *ds, |
1056 | struct devlink_info_req *req, | |
1057 | struct netlink_ext_ack *extack); | |
2a6ef763 VO |
1058 | int (*devlink_sb_pool_get)(struct dsa_switch *ds, |
1059 | unsigned int sb_index, u16 pool_index, | |
1060 | struct devlink_sb_pool_info *pool_info); | |
1061 | int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, | |
1062 | u16 pool_index, u32 size, | |
1063 | enum devlink_sb_threshold_type threshold_type, | |
1064 | struct netlink_ext_ack *extack); | |
1065 | int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, | |
1066 | unsigned int sb_index, u16 pool_index, | |
1067 | u32 *p_threshold); | |
1068 | int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, | |
1069 | unsigned int sb_index, u16 pool_index, | |
1070 | u32 threshold, | |
1071 | struct netlink_ext_ack *extack); | |
1072 | int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, | |
1073 | unsigned int sb_index, u16 tc_index, | |
1074 | enum devlink_sb_pool_type pool_type, | |
1075 | u16 *p_pool_index, u32 *p_threshold); | |
1076 | int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, | |
1077 | unsigned int sb_index, u16 tc_index, | |
1078 | enum devlink_sb_pool_type pool_type, | |
1079 | u16 pool_index, u32 threshold, | |
1080 | struct netlink_ext_ack *extack); | |
1081 | int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, | |
1082 | unsigned int sb_index); | |
1083 | int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, | |
1084 | unsigned int sb_index); | |
1085 | int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, | |
1086 | unsigned int sb_index, u16 pool_index, | |
1087 | u32 *p_cur, u32 *p_max); | |
1088 | int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, | |
1089 | unsigned int sb_index, u16 tc_index, | |
1090 | enum devlink_sb_pool_type pool_type, | |
1091 | u32 *p_cur, u32 *p_max); | |
bfcb8132 VO |
1092 | |
1093 | /* | |
1094 | * MTU change functionality. Switches can also adjust their MRU through | |
1095 | * this method. By MTU, one understands the SDU (L2 payload) length. | |
1096 | * If the switch needs to account for the DSA tag on the CPU port, this | |
ab88d64a | 1097 | * method needs to do so privately. |
bfcb8132 VO |
1098 | */ |
1099 | int (*port_change_mtu)(struct dsa_switch *ds, int port, | |
1100 | int new_mtu); | |
1101 | int (*port_max_mtu)(struct dsa_switch *ds, int port); | |
058102a6 TW |
1102 | |
1103 | /* | |
1104 | * LAG integration | |
1105 | */ | |
1106 | int (*port_lag_change)(struct dsa_switch *ds, int port); | |
1107 | int (*port_lag_join)(struct dsa_switch *ds, int port, | |
dedd6a00 | 1108 | struct dsa_lag lag, |
058102a6 TW |
1109 | struct netdev_lag_upper_info *info); |
1110 | int (*port_lag_leave)(struct dsa_switch *ds, int port, | |
dedd6a00 | 1111 | struct dsa_lag lag); |
18596f50 GM |
1112 | |
1113 | /* | |
1114 | * HSR integration | |
1115 | */ | |
1116 | int (*port_hsr_join)(struct dsa_switch *ds, int port, | |
1117 | struct net_device *hsr); | |
1118 | int (*port_hsr_leave)(struct dsa_switch *ds, int port, | |
1119 | struct net_device *hsr); | |
c595c433 HV |
1120 | |
1121 | /* | |
1122 | * MRP integration | |
1123 | */ | |
1124 | int (*port_mrp_add)(struct dsa_switch *ds, int port, | |
1125 | const struct switchdev_obj_mrp *mrp); | |
1126 | int (*port_mrp_del)(struct dsa_switch *ds, int port, | |
1127 | const struct switchdev_obj_mrp *mrp); | |
1128 | int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, | |
1129 | const struct switchdev_obj_ring_role_mrp *mrp); | |
1130 | int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, | |
1131 | const struct switchdev_obj_ring_role_mrp *mrp); | |
5da11eb4 VO |
1132 | |
1133 | /* | |
1134 | * tag_8021q operations | |
1135 | */ | |
1136 | int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, | |
1137 | u16 flags); | |
1138 | int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); | |
295ab96f VO |
1139 | |
1140 | /* | |
1141 | * DSA master tracking operations | |
1142 | */ | |
1143 | void (*master_state_change)(struct dsa_switch *ds, | |
1144 | const struct net_device *master, | |
1145 | bool operational); | |
6b297524 AL |
1146 | }; |
1147 | ||
1148 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ | |
1149 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ | |
1150 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) | |
1151 | ||
1152 | int dsa_devlink_param_get(struct devlink *dl, u32 id, | |
1153 | struct devlink_param_gset_ctx *ctx); | |
1154 | int dsa_devlink_param_set(struct devlink *dl, u32 id, | |
1155 | struct devlink_param_gset_ctx *ctx); | |
1156 | int dsa_devlink_params_register(struct dsa_switch *ds, | |
1157 | const struct devlink_param *params, | |
1158 | size_t params_count); | |
1159 | void dsa_devlink_params_unregister(struct dsa_switch *ds, | |
1160 | const struct devlink_param *params, | |
1161 | size_t params_count); | |
5cd73fbd AL |
1162 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
1163 | const char *resource_name, | |
1164 | u64 resource_size, | |
1165 | u64 resource_id, | |
1166 | u64 parent_resource_id, | |
1167 | const struct devlink_resource_size_params *size_params); | |
1168 | ||
1169 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); | |
1170 | ||
1171 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, | |
1172 | u64 resource_id, | |
1173 | devlink_resource_occ_get_t *occ_get, | |
1174 | void *occ_get_priv); | |
1175 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, | |
1176 | u64 resource_id); | |
97c82c23 AL |
1177 | struct devlink_region * |
1178 | dsa_devlink_region_create(struct dsa_switch *ds, | |
1179 | const struct devlink_region_ops *ops, | |
1180 | u32 region_max_snapshots, u64 region_size); | |
08156ba4 AL |
1181 | struct devlink_region * |
1182 | dsa_devlink_port_region_create(struct dsa_switch *ds, | |
1183 | int port, | |
1184 | const struct devlink_port_region_ops *ops, | |
1185 | u32 region_max_snapshots, u64 region_size); | |
97c82c23 AL |
1186 | void dsa_devlink_region_destroy(struct devlink_region *region); |
1187 | ||
e1eea811 | 1188 | struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); |
5cd73fbd | 1189 | |
6b297524 AL |
1190 | struct dsa_devlink_priv { |
1191 | struct dsa_switch *ds; | |
c8f0b869 BH |
1192 | }; |
1193 | ||
ccc3e6b0 AL |
1194 | static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) |
1195 | { | |
1196 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
1197 | ||
1198 | return dl_priv->ds; | |
1199 | } | |
1200 | ||
7d1e2a10 AL |
1201 | static inline |
1202 | struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) | |
1203 | { | |
1204 | struct devlink *dl = port->devlink; | |
1205 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
1206 | ||
1207 | return dl_priv->ds; | |
1208 | } | |
1209 | ||
1210 | static inline int dsa_devlink_port_to_port(struct devlink_port *port) | |
1211 | { | |
1212 | return port->index; | |
1213 | } | |
1214 | ||
ab3d408d FF |
1215 | struct dsa_switch_driver { |
1216 | struct list_head list; | |
a82f67af | 1217 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
1218 | }; |
1219 | ||
14b89f36 | 1220 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 1221 | |
f9cef64f VO |
1222 | typedef int dsa_fdb_walk_cb_t(struct dsa_switch *ds, int port, |
1223 | const unsigned char *addr, u16 vid, | |
1224 | struct dsa_db db); | |
1225 | ||
1226 | int dsa_port_walk_fdbs(struct dsa_switch *ds, int port, dsa_fdb_walk_cb_t cb); | |
1227 | int dsa_port_walk_mdbs(struct dsa_switch *ds, int port, dsa_fdb_walk_cb_t cb); | |
1228 | ||
73a7ece8 | 1229 | /* Keep inline for faster access in hot path */ |
9eb8eff0 | 1230 | static inline bool netdev_uses_dsa(const struct net_device *dev) |
c6e970a0 AL |
1231 | { |
1232 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 1233 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
1234 | #endif |
1235 | return false; | |
1236 | } | |
1237 | ||
9790cf20 VO |
1238 | /* All DSA tags that push the EtherType to the right (basically all except tail |
1239 | * tags, which don't break dissection) can be treated the same from the | |
1240 | * perspective of the flow dissector. | |
1241 | * | |
1242 | * We need to return: | |
1243 | * - offset: the (B - A) difference between: | |
1244 | * A. the position of the real EtherType and | |
1245 | * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes | |
1246 | * after the normal EtherType was supposed to be) | |
1247 | * The offset in bytes is exactly equal to the tagger overhead (and half of | |
1248 | * that, in __be16 shorts). | |
1249 | * | |
1250 | * - proto: the value of the real EtherType. | |
1251 | */ | |
1252 | static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, | |
1253 | __be16 *proto, int *offset) | |
1254 | { | |
1255 | #if IS_ENABLED(CONFIG_NET_DSA) | |
1256 | const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; | |
4e500251 | 1257 | int tag_len = ops->needed_headroom; |
9790cf20 VO |
1258 | |
1259 | *offset = tag_len; | |
1260 | *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; | |
1261 | #endif | |
1262 | } | |
1263 | ||
4cfab356 FF |
1264 | #if IS_ENABLED(CONFIG_NET_DSA) |
1265 | static inline int __dsa_netdevice_ops_check(struct net_device *dev) | |
1266 | { | |
1267 | int err = -EOPNOTSUPP; | |
1268 | ||
1269 | if (!dev->dsa_ptr) | |
1270 | return err; | |
1271 | ||
1272 | if (!dev->dsa_ptr->netdev_ops) | |
1273 | return err; | |
1274 | ||
1275 | return 0; | |
1276 | } | |
1277 | ||
a7605370 AB |
1278 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1279 | int cmd) | |
4cfab356 FF |
1280 | { |
1281 | const struct dsa_netdevice_ops *ops; | |
1282 | int err; | |
1283 | ||
1284 | err = __dsa_netdevice_ops_check(dev); | |
1285 | if (err) | |
1286 | return err; | |
1287 | ||
1288 | ops = dev->dsa_ptr->netdev_ops; | |
1289 | ||
a7605370 | 1290 | return ops->ndo_eth_ioctl(dev, ifr, cmd); |
4cfab356 | 1291 | } |
4cfab356 | 1292 | #else |
a7605370 AB |
1293 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1294 | int cmd) | |
4cfab356 FF |
1295 | { |
1296 | return -EOPNOTSUPP; | |
1297 | } | |
4cfab356 FF |
1298 | #endif |
1299 | ||
83c0afae | 1300 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 1301 | int dsa_register_switch(struct dsa_switch *ds); |
0650bf52 | 1302 | void dsa_switch_shutdown(struct dsa_switch *ds); |
3b7bc1f0 | 1303 | struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |
a2614140 | 1304 | void dsa_flush_workqueue(void); |
ea825e70 FF |
1305 | #ifdef CONFIG_PM_SLEEP |
1306 | int dsa_switch_suspend(struct dsa_switch *ds); | |
1307 | int dsa_switch_resume(struct dsa_switch *ds); | |
1308 | #else | |
1309 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
1310 | { | |
1311 | return 0; | |
1312 | } | |
1313 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
1314 | { | |
1315 | return 0; | |
1316 | } | |
1317 | #endif /* CONFIG_PM_SLEEP */ | |
1318 | ||
60724d4b | 1319 | #if IS_ENABLED(CONFIG_NET_DSA) |
a5e3c9ba | 1320 | bool dsa_slave_dev_check(const struct net_device *dev); |
60724d4b | 1321 | #else |
a5e3c9ba VO |
1322 | static inline bool dsa_slave_dev_check(const struct net_device *dev) |
1323 | { | |
1324 | return false; | |
1325 | } | |
60724d4b FF |
1326 | #endif |
1327 | ||
97a69a0d | 1328 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
11d8f3dd | 1329 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 1330 | |
d3b8c049 AL |
1331 | struct dsa_tag_driver { |
1332 | const struct dsa_device_ops *ops; | |
1333 | struct list_head list; | |
1334 | struct module *owner; | |
1335 | }; | |
1336 | ||
1337 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1338 | unsigned int count, | |
1339 | struct module *owner); | |
1340 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1341 | unsigned int count); | |
1342 | ||
1343 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
1344 | static int __init dsa_tag_driver_module_init(void) \ | |
1345 | { \ | |
1346 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
1347 | THIS_MODULE); \ | |
1348 | return 0; \ | |
1349 | } \ | |
1350 | module_init(dsa_tag_driver_module_init); \ | |
1351 | \ | |
1352 | static void __exit dsa_tag_driver_module_exit(void) \ | |
1353 | { \ | |
1354 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
1355 | } \ | |
1356 | module_exit(dsa_tag_driver_module_exit) | |
1357 | ||
1358 | /** | |
1359 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
1360 | * drivers | |
c7d9a675 | 1361 | * @__ops_array: Array of tag driver structures |
d3b8c049 AL |
1362 | * |
1363 | * Helper macro for DSA tag drivers which do not do anything special | |
1364 | * in module init/exit. Each module may only use this macro once, and | |
1365 | * calling it replaces module_init() and module_exit(). | |
1366 | */ | |
1367 | #define module_dsa_tag_drivers(__ops_array) \ | |
1368 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
1369 | ||
1370 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
1371 | ||
1372 | /* Create a static structure we can build a linked list of dsa_tag | |
1373 | * drivers | |
1374 | */ | |
1375 | #define DSA_TAG_DRIVER(__ops) \ | |
1376 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
1377 | .ops = &__ops, \ | |
1378 | } | |
1379 | ||
1380 | /** | |
1381 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
1382 | * driver | |
1383 | * @__ops: Single tag driver structures | |
1384 | * | |
1385 | * Helper macro for DSA tag drivers which do not do anything special | |
1386 | * in module init/exit. Each module may only use this macro once, and | |
1387 | * calling it replaces module_init() and module_exit(). | |
1388 | */ | |
1389 | #define module_dsa_tag_driver(__ops) \ | |
1390 | DSA_TAG_DRIVER(__ops); \ | |
1391 | \ | |
1392 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
1393 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
1394 | }; \ | |
1395 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 1396 | #endif |
d3b8c049 | 1397 |