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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 |
cd87fecd | 55 | #define DSA_TAG_PROTO_RTL8_4T_VALUE 25 |
0b42f033 | 56 | |
ac7a04c3 | 57 | enum dsa_tag_protocol { |
0b42f033 AL |
58 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
59 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, | |
964dbf18 | 60 | DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, |
0b42f033 AL |
61 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, |
62 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, | |
63 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, | |
64 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, | |
65 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, | |
66 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, | |
67 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, | |
68 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, | |
69 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, | |
70 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, | |
f9bbe447 | 71 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
227d07a0 | 72 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
016e43a2 | 73 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
8dce89aa | 74 | DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, |
48fda74f | 75 | DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, |
efd7fe68 | 76 | DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, |
01ef09ca | 77 | DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, |
54a52823 | 78 | DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, |
7c83a7c5 | 79 | DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, |
7c4bb540 | 80 | DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, |
4913b8eb | 81 | DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, |
1521d5ad | 82 | DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, |
cd87fecd | 83 | DSA_TAG_PROTO_RTL8_4T = DSA_TAG_PROTO_RTL8_4T_VALUE, |
ac7a04c3 | 84 | }; |
5037d532 | 85 | |
90af1059 | 86 | struct dsa_switch; |
3e8a72d1 | 87 | |
68277a2c JC |
88 | struct dsa_device_ops { |
89 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); | |
29a097b7 | 90 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
2e8cb1b3 VO |
91 | void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
92 | int *offset); | |
7f297314 VO |
93 | int (*connect)(struct dsa_switch *ds); |
94 | void (*disconnect)(struct dsa_switch *ds); | |
4e500251 VO |
95 | unsigned int needed_headroom; |
96 | unsigned int needed_tailroom; | |
875138f8 | 97 | const char *name; |
056eed2f | 98 | enum dsa_tag_protocol proto; |
c3975400 VO |
99 | /* Some tagging protocols either mangle or shift the destination MAC |
100 | * address, in which case the DSA master would drop packets on ingress | |
101 | * if what it understands out of the destination MAC address is not in | |
102 | * its RX filter. | |
103 | */ | |
104 | bool promisc_on_master; | |
68277a2c JC |
105 | }; |
106 | ||
4cfab356 FF |
107 | /* This structure defines the control interfaces that are overlayed by the |
108 | * DSA layer on top of the DSA CPU/management net_device instance. This is | |
109 | * used by the core net_device layer while calling various net_device_ops | |
110 | * function pointers. | |
111 | */ | |
112 | struct dsa_netdevice_ops { | |
a7605370 AB |
113 | int (*ndo_eth_ioctl)(struct net_device *dev, struct ifreq *ifr, |
114 | int cmd); | |
4cfab356 FF |
115 | }; |
116 | ||
0b42f033 AL |
117 | #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" |
118 | #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ | |
119 | MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) | |
120 | ||
dedd6a00 VO |
121 | struct dsa_lag { |
122 | struct net_device *dev; | |
123 | unsigned int id; | |
e212fa7c VO |
124 | struct mutex fdb_lock; |
125 | struct list_head fdbs; | |
dedd6a00 VO |
126 | refcount_t refcount; |
127 | }; | |
128 | ||
cf50dcc2 | 129 | struct dsa_switch_tree { |
83c0afae AL |
130 | struct list_head list; |
131 | ||
b035c88c VO |
132 | /* List of switch ports */ |
133 | struct list_head ports; | |
134 | ||
f515f192 VD |
135 | /* Notifier chain for switch-wide events */ |
136 | struct raw_notifier_head nh; | |
137 | ||
83c0afae | 138 | /* Tree identifier */ |
49463b7f | 139 | unsigned int index; |
83c0afae AL |
140 | |
141 | /* Number of switches attached to this tree */ | |
142 | struct kref refcount; | |
143 | ||
b035c88c VO |
144 | /* Maps offloaded LAG netdevs to a zero-based linear ID for |
145 | * drivers that need it. | |
146 | */ | |
dedd6a00 | 147 | struct dsa_lag **lags; |
b035c88c | 148 | |
357f203b VO |
149 | /* Tagging protocol operations */ |
150 | const struct dsa_device_ops *tag_ops; | |
151 | ||
deff7107 TW |
152 | /* Default tagging protocol preferred by the switches in this |
153 | * tree. | |
154 | */ | |
155 | enum dsa_tag_protocol default_proto; | |
156 | ||
4b026e82 VO |
157 | /* Has this tree been applied to the hardware? */ |
158 | bool setup; | |
159 | ||
cf50dcc2 BH |
160 | /* |
161 | * Configuration data for the platform device that owns | |
162 | * this dsa switch tree instance. | |
163 | */ | |
164 | struct dsa_platform_data *pd; | |
165 | ||
c5f51765 VD |
166 | /* List of DSA links composing the routing table */ |
167 | struct list_head rtable; | |
058102a6 | 168 | |
b035c88c | 169 | /* Length of "lags" array */ |
058102a6 | 170 | unsigned int lags_len; |
5b22d366 VO |
171 | |
172 | /* Track the largest switch index within a tree */ | |
173 | unsigned int last_switch; | |
cf50dcc2 BH |
174 | }; |
175 | ||
3d4a0a2a | 176 | /* LAG IDs are one-based, the dst->lags array is zero-based */ |
058102a6 | 177 | #define dsa_lags_foreach_id(_id, _dst) \ |
3d4a0a2a VO |
178 | for ((_id) = 1; (_id) <= (_dst)->lags_len; (_id)++) \ |
179 | if ((_dst)->lags[(_id) - 1]) | |
058102a6 TW |
180 | |
181 | #define dsa_lag_foreach_port(_dp, _dst, _lag) \ | |
182 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
dedd6a00 | 183 | if (dsa_port_offloads_lag((_dp), (_lag))) |
058102a6 | 184 | |
18596f50 GM |
185 | #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ |
186 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
187 | if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) | |
188 | ||
dedd6a00 VO |
189 | static inline struct dsa_lag *dsa_lag_by_id(struct dsa_switch_tree *dst, |
190 | unsigned int id) | |
058102a6 | 191 | { |
3d4a0a2a VO |
192 | /* DSA LAG IDs are one-based, dst->lags is zero-based */ |
193 | return dst->lags[id - 1]; | |
058102a6 TW |
194 | } |
195 | ||
196 | static inline int dsa_lag_id(struct dsa_switch_tree *dst, | |
46a76724 | 197 | struct net_device *lag_dev) |
058102a6 TW |
198 | { |
199 | unsigned int id; | |
200 | ||
201 | dsa_lags_foreach_id(id, dst) { | |
dedd6a00 VO |
202 | struct dsa_lag *lag = dsa_lag_by_id(dst, id); |
203 | ||
204 | if (lag->dev == lag_dev) | |
205 | return lag->id; | |
058102a6 TW |
206 | } |
207 | ||
208 | return -ENODEV; | |
209 | } | |
210 | ||
34297176 | 211 | /* TC matchall action types */ |
f50f2127 FF |
212 | enum dsa_port_mall_action_type { |
213 | DSA_PORT_MALL_MIRROR, | |
34297176 | 214 | DSA_PORT_MALL_POLICER, |
f50f2127 FF |
215 | }; |
216 | ||
217 | /* TC mirroring entry */ | |
218 | struct dsa_mall_mirror_tc_entry { | |
219 | u8 to_local_port; | |
220 | bool ingress; | |
221 | }; | |
222 | ||
34297176 VO |
223 | /* TC port policer entry */ |
224 | struct dsa_mall_policer_tc_entry { | |
5f035af7 | 225 | u32 burst; |
34297176 VO |
226 | u64 rate_bytes_per_sec; |
227 | }; | |
228 | ||
f50f2127 FF |
229 | /* TC matchall entry */ |
230 | struct dsa_mall_tc_entry { | |
231 | struct list_head list; | |
232 | unsigned long cookie; | |
233 | enum dsa_port_mall_action_type type; | |
234 | union { | |
235 | struct dsa_mall_mirror_tc_entry mirror; | |
34297176 | 236 | struct dsa_mall_policer_tc_entry policer; |
f50f2127 FF |
237 | }; |
238 | }; | |
239 | ||
d3eed0e5 VO |
240 | struct dsa_bridge { |
241 | struct net_device *dev; | |
242 | unsigned int num; | |
857fdd74 | 243 | bool tx_fwd_offload; |
d3eed0e5 VO |
244 | refcount_t refcount; |
245 | }; | |
f50f2127 | 246 | |
c8b09808 | 247 | struct dsa_port { |
f8b8b1cd VD |
248 | /* A CPU port is physically connected to a master device. |
249 | * A user port exposed to userspace has a slave device. | |
250 | */ | |
251 | union { | |
252 | struct net_device *master; | |
253 | struct net_device *slave; | |
254 | }; | |
255 | ||
357f203b VO |
256 | /* Copy of the tagging protocol operations, for quicker access |
257 | * in the data path. Valid only for the CPU ports. | |
258 | */ | |
15240248 VD |
259 | const struct dsa_device_ops *tag_ops; |
260 | ||
3e41f93b VD |
261 | /* Copies for faster access in master receive hot path */ |
262 | struct dsa_switch_tree *dst; | |
29a097b7 | 263 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
3e41f93b | 264 | |
06251258 VO |
265 | struct dsa_switch *ds; |
266 | ||
267 | unsigned int index; | |
268 | ||
057cad2c VD |
269 | enum { |
270 | DSA_PORT_TYPE_UNUSED = 0, | |
271 | DSA_PORT_TYPE_CPU, | |
272 | DSA_PORT_TYPE_DSA, | |
273 | DSA_PORT_TYPE_USER, | |
274 | } type; | |
275 | ||
71e0bbde | 276 | const char *name; |
68b2d4a8 | 277 | struct dsa_port *cpu_dp; |
83216e39 | 278 | u8 mac[ETH_ALEN]; |
b08db33d VO |
279 | |
280 | u8 stp_state; | |
281 | ||
1b26d364 VO |
282 | /* Warning: the following bit fields are not atomic, and updating them |
283 | * can only be done from code paths where concurrency is not possible | |
284 | * (probe time or under rtnl_lock). | |
285 | */ | |
63cfc657 VO |
286 | u8 vlan_filtering:1; |
287 | ||
288 | /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ | |
289 | u8 learning:1; | |
290 | ||
291 | u8 lag_tx_enabled:1; | |
292 | ||
293 | u8 devlink_port_setup:1; | |
294 | ||
295ab96f VO |
295 | /* Master state bits, valid only on CPU ports */ |
296 | u8 master_admin_up:1; | |
297 | u8 master_oper_up:1; | |
298 | ||
63cfc657 | 299 | u8 setup:1; |
bde82f38 | 300 | |
189b0d93 | 301 | struct device_node *dn; |
34a79f63 | 302 | unsigned int ageing_time; |
bde82f38 | 303 | |
d3eed0e5 | 304 | struct dsa_bridge *bridge; |
96567d5d | 305 | struct devlink_port devlink_port; |
aab9c406 | 306 | struct phylink *pl; |
44cc27e4 | 307 | struct phylink_config pl_config; |
dedd6a00 | 308 | struct dsa_lag *lag; |
18596f50 | 309 | struct net_device *hsr_dev; |
97a69a0d | 310 | |
ab8ccae1 VD |
311 | struct list_head list; |
312 | ||
67dbb9d4 FF |
313 | /* |
314 | * Original copy of the master netdev ethtool_ops | |
315 | */ | |
67dbb9d4 | 316 | const struct ethtool_ops *orig_ethtool_ops; |
da7b9e9b FF |
317 | |
318 | /* | |
319 | * Original copy of the master netdev net_device_ops | |
320 | */ | |
4cfab356 | 321 | const struct dsa_netdevice_ops *netdev_ops; |
fb35c60c | 322 | |
161ca59d VO |
323 | /* List of MAC addresses that must be forwarded on this port. |
324 | * These are only valid on CPU ports and DSA links. | |
325 | */ | |
338a3a47 | 326 | struct mutex addr_lists_lock; |
3f6e32f9 | 327 | struct list_head fdbs; |
161ca59d | 328 | struct list_head mdbs; |
134ef238 VO |
329 | |
330 | /* List of VLANs that CPU and DSA ports are members of. */ | |
331 | struct mutex vlans_lock; | |
332 | struct list_head vlans; | |
c8b09808 AL |
333 | }; |
334 | ||
c5f51765 VD |
335 | /* TODO: ideally DSA ports would have a single dp->link_dp member, |
336 | * and no dst->rtable nor this struct dsa_link would be needed, | |
337 | * but this would require some more complex tree walking, | |
338 | * so keep it stupid at the moment and list them all. | |
339 | */ | |
340 | struct dsa_link { | |
341 | struct dsa_port *dp; | |
342 | struct dsa_port *link_dp; | |
343 | struct list_head list; | |
344 | }; | |
345 | ||
c2693363 VO |
346 | enum dsa_db_type { |
347 | DSA_DB_PORT, | |
348 | DSA_DB_LAG, | |
349 | DSA_DB_BRIDGE, | |
350 | }; | |
351 | ||
352 | struct dsa_db { | |
353 | enum dsa_db_type type; | |
354 | ||
355 | union { | |
356 | const struct dsa_port *dp; | |
357 | struct dsa_lag lag; | |
358 | struct dsa_bridge bridge; | |
359 | }; | |
360 | }; | |
361 | ||
161ca59d VO |
362 | struct dsa_mac_addr { |
363 | unsigned char addr[ETH_ALEN]; | |
364 | u16 vid; | |
365 | refcount_t refcount; | |
366 | struct list_head list; | |
c2693363 | 367 | struct dsa_db db; |
161ca59d VO |
368 | }; |
369 | ||
134ef238 VO |
370 | struct dsa_vlan { |
371 | u16 vid; | |
372 | refcount_t refcount; | |
373 | struct list_head list; | |
374 | }; | |
375 | ||
c8f0b869 | 376 | struct dsa_switch { |
c33063d6 AL |
377 | struct device *dev; |
378 | ||
c8f0b869 BH |
379 | /* |
380 | * Parent switch tree, and switch index. | |
381 | */ | |
382 | struct dsa_switch_tree *dst; | |
99feaafc | 383 | unsigned int index; |
c8f0b869 | 384 | |
1b26d364 VO |
385 | /* Warning: the following bit fields are not atomic, and updating them |
386 | * can only be done from code paths where concurrency is not possible | |
387 | * (probe time or under rtnl_lock). | |
388 | */ | |
63cfc657 VO |
389 | u32 setup:1; |
390 | ||
391 | /* Disallow bridge core from requesting different VLAN awareness | |
392 | * settings on ports if not hardware-supported | |
393 | */ | |
394 | u32 vlan_filtering_is_global:1; | |
395 | ||
396 | /* Keep VLAN filtering enabled on ports not offloading any upper */ | |
397 | u32 needs_standalone_vlan_filtering:1; | |
398 | ||
399 | /* Pass .port_vlan_add and .port_vlan_del to drivers even for bridges | |
400 | * that have vlan_filtering=0. All drivers should ideally set this (and | |
401 | * then the option would get removed), but it is unknown whether this | |
402 | * would break things or not. | |
403 | */ | |
404 | u32 configure_vlan_while_not_filtering:1; | |
405 | ||
406 | /* If the switch driver always programs the CPU port as egress tagged | |
407 | * despite the VLAN configuration indicating otherwise, then setting | |
408 | * @untag_bridge_pvid will force the DSA receive path to pop the | |
409 | * bridge's default_pvid VLAN tagged frames to offer a consistent | |
410 | * behavior between a vlan_filtering=0 and vlan_filtering=1 bridge | |
411 | * device. | |
412 | */ | |
413 | u32 untag_bridge_pvid:1; | |
414 | ||
415 | /* Let DSA manage the FDB entries towards the | |
416 | * CPU, based on the software bridge database. | |
417 | */ | |
418 | u32 assisted_learning_on_cpu_port:1; | |
419 | ||
420 | /* In case vlan_filtering_is_global is set, the VLAN awareness state | |
421 | * should be retrieved from here and not from the per-port settings. | |
422 | */ | |
423 | u32 vlan_filtering:1; | |
424 | ||
63cfc657 VO |
425 | /* For switches that only have the MRU configurable. To ensure the |
426 | * configured MTU is not exceeded, normalization of MRU on all bridged | |
427 | * interfaces is needed. | |
428 | */ | |
429 | u32 mtu_enforcement_ingress:1; | |
7787ff77 | 430 | |
c2693363 VO |
431 | /* Drivers that isolate the FDBs of multiple bridges must set this |
432 | * to true to receive the bridge as an argument in .port_fdb_{add,del} | |
433 | * and .port_mdb_{add,del}. Otherwise, the bridge.num will always be | |
434 | * passed as zero. | |
435 | */ | |
436 | u32 fdb_isolation:1; | |
437 | ||
f515f192 VD |
438 | /* Listener for switch fabric events */ |
439 | struct notifier_block nb; | |
440 | ||
7543a6d5 AL |
441 | /* |
442 | * Give the switch driver somewhere to hang its private data | |
443 | * structure. | |
444 | */ | |
445 | void *priv; | |
446 | ||
dc452a47 VO |
447 | void *tagger_data; |
448 | ||
c8f0b869 BH |
449 | /* |
450 | * Configuration data for this switch. | |
451 | */ | |
ff04955c | 452 | struct dsa_chip_data *cd; |
c8f0b869 BH |
453 | |
454 | /* | |
9d490b4e | 455 | * The switch operations. |
c8f0b869 | 456 | */ |
a82f67af | 457 | const struct dsa_switch_ops *ops; |
c8f0b869 | 458 | |
c8f0b869 BH |
459 | /* |
460 | * Slave mii_bus and devices for the individual ports. | |
461 | */ | |
0d8bcdd3 | 462 | u32 phys_mii_mask; |
c8f0b869 | 463 | struct mii_bus *slave_mii_bus; |
a0c02161 | 464 | |
0f3da6af VD |
465 | /* Ageing Time limits in msecs */ |
466 | unsigned int ageing_time_min; | |
467 | unsigned int ageing_time_max; | |
468 | ||
d7b1fd52 VO |
469 | /* Storage for drivers using tag_8021q */ |
470 | struct dsa_8021q_context *tag_8021q_ctx; | |
471 | ||
96567d5d AL |
472 | /* devlink used to represent this switch device */ |
473 | struct devlink *devlink; | |
474 | ||
55199df6 FF |
475 | /* Number of switch port queues */ |
476 | unsigned int num_tx_queues; | |
477 | ||
058102a6 TW |
478 | /* Drivers that benefit from having an ID associated with each |
479 | * offloaded LAG should set this to the maximum number of | |
480 | * supported IDs. DSA will then maintain a mapping of _at | |
481 | * least_ these many IDs, accessible to drivers via | |
482 | * dsa_lag_id(). | |
483 | */ | |
484 | unsigned int num_lag_ids; | |
485 | ||
947c8746 VO |
486 | /* Drivers that support bridge forwarding offload or FDB isolation |
487 | * should set this to the maximum number of bridges spanning the same | |
488 | * switch tree (or all trees, in the case of cross-tree bridging | |
489 | * support) that can be offloaded. | |
123abc06 | 490 | */ |
947c8746 | 491 | unsigned int max_num_bridges; |
123abc06 | 492 | |
258030ac | 493 | unsigned int num_ports; |
c8f0b869 BH |
494 | }; |
495 | ||
68bb8ea8 | 496 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
bff7b688 | 497 | { |
b96ddf25 | 498 | struct dsa_switch_tree *dst = ds->dst; |
d607525b | 499 | struct dsa_port *dp; |
b96ddf25 VD |
500 | |
501 | list_for_each_entry(dp, &dst->ports, list) | |
502 | if (dp->ds == ds && dp->index == p) | |
d607525b | 503 | return dp; |
b96ddf25 | 504 | |
d607525b | 505 | return NULL; |
c38c5a66 | 506 | } |
bff7b688 | 507 | |
a8986681 VO |
508 | static inline bool dsa_port_is_dsa(struct dsa_port *port) |
509 | { | |
510 | return port->type == DSA_PORT_TYPE_DSA; | |
511 | } | |
512 | ||
513 | static inline bool dsa_port_is_cpu(struct dsa_port *port) | |
514 | { | |
515 | return port->type == DSA_PORT_TYPE_CPU; | |
516 | } | |
517 | ||
518 | static inline bool dsa_port_is_user(struct dsa_port *dp) | |
519 | { | |
520 | return dp->type == DSA_PORT_TYPE_USER; | |
521 | } | |
522 | ||
a57d8c21 VO |
523 | static inline bool dsa_port_is_unused(struct dsa_port *dp) |
524 | { | |
525 | return dp->type == DSA_PORT_TYPE_UNUSED; | |
526 | } | |
527 | ||
295ab96f VO |
528 | static inline bool dsa_port_master_is_operational(struct dsa_port *dp) |
529 | { | |
530 | return dsa_port_is_cpu(dp) && dp->master_admin_up && | |
531 | dp->master_oper_up; | |
532 | } | |
533 | ||
c38c5a66 VD |
534 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
535 | { | |
536 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; | |
bff7b688 VD |
537 | } |
538 | ||
c8f0b869 BH |
539 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
540 | { | |
c38c5a66 | 541 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
c8f0b869 BH |
542 | } |
543 | ||
60045cbf AL |
544 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
545 | { | |
c38c5a66 | 546 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
60045cbf AL |
547 | } |
548 | ||
2b3e9891 | 549 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
6cd456f3 | 550 | { |
c38c5a66 | 551 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
6cd456f3 VD |
552 | } |
553 | ||
82b31898 VO |
554 | #define dsa_tree_for_each_user_port(_dp, _dst) \ |
555 | list_for_each_entry((_dp), &(_dst)->ports, list) \ | |
556 | if (dsa_port_is_user((_dp))) | |
557 | ||
558 | #define dsa_switch_for_each_port(_dp, _ds) \ | |
559 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ | |
560 | if ((_dp)->ds == (_ds)) | |
561 | ||
562 | #define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ | |
563 | list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ | |
564 | if ((_dp)->ds == (_ds)) | |
565 | ||
566 | #define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ | |
567 | list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ | |
568 | if ((_dp)->ds == (_ds)) | |
569 | ||
570 | #define dsa_switch_for_each_available_port(_dp, _ds) \ | |
571 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
572 | if (!dsa_port_is_unused((_dp))) | |
573 | ||
574 | #define dsa_switch_for_each_user_port(_dp, _ds) \ | |
575 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
576 | if (dsa_port_is_user((_dp))) | |
577 | ||
578 | #define dsa_switch_for_each_cpu_port(_dp, _ds) \ | |
579 | dsa_switch_for_each_port((_dp), (_ds)) \ | |
580 | if (dsa_port_is_cpu((_dp))) | |
581 | ||
02bc6e54 VD |
582 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
583 | { | |
d0004a02 | 584 | struct dsa_port *dp; |
c38c5a66 | 585 | u32 mask = 0; |
02bc6e54 | 586 | |
d0004a02 VO |
587 | dsa_switch_for_each_user_port(dp, ds) |
588 | mask |= BIT(dp->index); | |
c38c5a66 VD |
589 | |
590 | return mask; | |
c8652c83 VD |
591 | } |
592 | ||
c5f51765 VD |
593 | /* Return the local port used to reach an arbitrary switch device */ |
594 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) | |
595 | { | |
596 | struct dsa_switch_tree *dst = ds->dst; | |
597 | struct dsa_link *dl; | |
598 | ||
599 | list_for_each_entry(dl, &dst->rtable, list) | |
600 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) | |
601 | return dl->dp->index; | |
602 | ||
603 | return ds->num_ports; | |
604 | } | |
605 | ||
3b8fac5d VD |
606 | /* Return the local port used to reach an arbitrary switch port */ |
607 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, | |
608 | int port) | |
609 | { | |
610 | if (device == ds->index) | |
611 | return port; | |
612 | else | |
c5f51765 | 613 | return dsa_routing_port(ds, device); |
3b8fac5d VD |
614 | } |
615 | ||
616 | /* Return the local port used to reach the dedicated CPU port */ | |
07073c79 | 617 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
c8f0b869 | 618 | { |
07073c79 VD |
619 | const struct dsa_port *dp = dsa_to_port(ds, port); |
620 | const struct dsa_port *cpu_dp = dp->cpu_dp; | |
621 | ||
622 | if (!cpu_dp) | |
623 | return port; | |
c8f0b869 | 624 | |
3b8fac5d | 625 | return dsa_towards_port(ds, cpu_dp->ds->index, cpu_dp->index); |
c8f0b869 BH |
626 | } |
627 | ||
63609c8f VO |
628 | /* Return true if this is the local port used to reach the CPU port */ |
629 | static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) | |
630 | { | |
631 | if (dsa_is_unused_port(ds, port)) | |
632 | return false; | |
633 | ||
634 | return port == dsa_upstream_port(ds, port); | |
635 | } | |
636 | ||
d352b20f TW |
637 | /* Return true if this is a DSA port leading away from the CPU */ |
638 | static inline bool dsa_is_downstream_port(struct dsa_switch *ds, int port) | |
639 | { | |
640 | return dsa_is_dsa_port(ds, port) && !dsa_is_upstream_port(ds, port); | |
641 | } | |
642 | ||
7af4a361 TW |
643 | /* Return the local port used to reach the CPU port */ |
644 | static inline unsigned int dsa_switch_upstream_port(struct dsa_switch *ds) | |
645 | { | |
646 | struct dsa_port *dp; | |
647 | ||
648 | dsa_switch_for_each_available_port(dp, ds) { | |
649 | return dsa_upstream_port(ds, dp->index); | |
650 | } | |
651 | ||
652 | return ds->num_ports; | |
653 | } | |
654 | ||
63609c8f VO |
655 | /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning |
656 | * that the routing port from @downstream_ds to @upstream_ds is also the port | |
657 | * which @downstream_ds uses to reach its dedicated CPU. | |
658 | */ | |
659 | static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, | |
660 | struct dsa_switch *downstream_ds) | |
661 | { | |
662 | int routing_port; | |
663 | ||
664 | if (upstream_ds == downstream_ds) | |
665 | return true; | |
666 | ||
667 | routing_port = dsa_routing_port(downstream_ds, upstream_ds->index); | |
668 | ||
669 | return dsa_is_upstream_port(downstream_ds, routing_port); | |
670 | } | |
671 | ||
cf2d45f5 VO |
672 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
673 | { | |
674 | const struct dsa_switch *ds = dp->ds; | |
675 | ||
676 | if (ds->vlan_filtering_is_global) | |
677 | return ds->vlan_filtering; | |
678 | else | |
679 | return dp->vlan_filtering; | |
680 | } | |
681 | ||
dedd6a00 VO |
682 | static inline unsigned int dsa_port_lag_id_get(struct dsa_port *dp) |
683 | { | |
684 | return dp->lag ? dp->lag->id : 0; | |
685 | } | |
686 | ||
687 | static inline struct net_device *dsa_port_lag_dev_get(struct dsa_port *dp) | |
688 | { | |
689 | return dp->lag ? dp->lag->dev : NULL; | |
690 | } | |
691 | ||
692 | static inline bool dsa_port_offloads_lag(struct dsa_port *dp, | |
693 | const struct dsa_lag *lag) | |
694 | { | |
695 | return dsa_port_lag_dev_get(dp) == lag->dev; | |
696 | } | |
697 | ||
cc76ce9e TW |
698 | static inline |
699 | struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) | |
700 | { | |
d3eed0e5 | 701 | if (!dp->bridge) |
cc76ce9e TW |
702 | return NULL; |
703 | ||
dedd6a00 VO |
704 | if (dp->lag) |
705 | return dp->lag->dev; | |
cc76ce9e TW |
706 | else if (dp->hsr_dev) |
707 | return dp->hsr_dev; | |
708 | ||
709 | return dp->slave; | |
710 | } | |
711 | ||
36cbf39b VO |
712 | static inline struct net_device * |
713 | dsa_port_bridge_dev_get(const struct dsa_port *dp) | |
714 | { | |
d3eed0e5 | 715 | return dp->bridge ? dp->bridge->dev : NULL; |
36cbf39b VO |
716 | } |
717 | ||
718 | static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) | |
719 | { | |
d3eed0e5 | 720 | return dp->bridge ? dp->bridge->num : 0; |
36cbf39b VO |
721 | } |
722 | ||
723 | static inline bool dsa_port_bridge_same(const struct dsa_port *a, | |
724 | const struct dsa_port *b) | |
725 | { | |
726 | struct net_device *br_a = dsa_port_bridge_dev_get(a); | |
727 | struct net_device *br_b = dsa_port_bridge_dev_get(b); | |
728 | ||
729 | /* Standalone ports are not in the same bridge with one another */ | |
730 | return (!br_a || !br_b) ? false : (br_a == br_b); | |
731 | } | |
732 | ||
6a43cba3 VO |
733 | static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, |
734 | const struct net_device *dev) | |
735 | { | |
736 | return dsa_port_to_bridge_port(dp) == dev; | |
737 | } | |
738 | ||
739 | static inline bool | |
740 | dsa_port_offloads_bridge_dev(struct dsa_port *dp, | |
741 | const struct net_device *bridge_dev) | |
742 | { | |
743 | /* DSA ports connected to a bridge, and event was emitted | |
744 | * for the bridge. | |
745 | */ | |
746 | return dsa_port_bridge_dev_get(dp) == bridge_dev; | |
747 | } | |
748 | ||
d3eed0e5 VO |
749 | static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, |
750 | const struct dsa_bridge *bridge) | |
751 | { | |
752 | return dsa_port_bridge_dev_get(dp) == bridge->dev; | |
753 | } | |
754 | ||
6a43cba3 VO |
755 | /* Returns true if any port of this tree offloads the given net_device */ |
756 | static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, | |
757 | const struct net_device *dev) | |
758 | { | |
759 | struct dsa_port *dp; | |
760 | ||
761 | list_for_each_entry(dp, &dst->ports, list) | |
762 | if (dsa_port_offloads_bridge_port(dp, dev)) | |
763 | return true; | |
764 | ||
765 | return false; | |
766 | } | |
767 | ||
768 | /* Returns true if any port of this tree offloads the given bridge */ | |
769 | static inline bool | |
770 | dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, | |
771 | const struct net_device *bridge_dev) | |
772 | { | |
773 | struct dsa_port *dp; | |
774 | ||
775 | list_for_each_entry(dp, &dst->ports, list) | |
776 | if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) | |
777 | return true; | |
778 | ||
779 | return false; | |
780 | } | |
781 | ||
2bedde1a AS |
782 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
783 | bool is_static, void *data); | |
9d490b4e | 784 | struct dsa_switch_ops { |
53da0eba VO |
785 | /* |
786 | * Tagging protocol helpers called for the CPU ports and DSA links. | |
787 | * @get_tag_protocol retrieves the initial tagging protocol and is | |
788 | * mandatory. Switches which can operate using multiple tagging | |
789 | * protocols should implement @change_tag_protocol and report in | |
790 | * @get_tag_protocol the tagger in current use. | |
791 | */ | |
5ed4e3eb | 792 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
4d776482 FF |
793 | int port, |
794 | enum dsa_tag_protocol mprot); | |
53da0eba VO |
795 | int (*change_tag_protocol)(struct dsa_switch *ds, int port, |
796 | enum dsa_tag_protocol proto); | |
dc452a47 VO |
797 | /* |
798 | * Method for switch drivers to connect to the tagging protocol driver | |
799 | * in current use. The switch driver can provide handlers for certain | |
800 | * types of packets for switch management. | |
801 | */ | |
802 | int (*connect_tag_protocol)(struct dsa_switch *ds, | |
803 | enum dsa_tag_protocol proto); | |
7b314362 | 804 | |
fd292c18 | 805 | /* Optional switch-wide initialization and destruction methods */ |
c8f0b869 | 806 | int (*setup)(struct dsa_switch *ds); |
5e3f847a | 807 | void (*teardown)(struct dsa_switch *ds); |
fd292c18 VO |
808 | |
809 | /* Per-port initialization and destruction methods. Mandatory if the | |
810 | * driver registers devlink port regions, optional otherwise. | |
811 | */ | |
812 | int (*port_setup)(struct dsa_switch *ds, int port); | |
813 | void (*port_teardown)(struct dsa_switch *ds, int port); | |
814 | ||
6819563e | 815 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
c8f0b869 BH |
816 | |
817 | /* | |
818 | * Access to the switch's PHY registers. | |
819 | */ | |
820 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); | |
821 | int (*phy_write)(struct dsa_switch *ds, int port, | |
822 | int regnum, u16 val); | |
823 | ||
ec9436ba FF |
824 | /* |
825 | * Link state adjustment (called from libphy) | |
826 | */ | |
827 | void (*adjust_link)(struct dsa_switch *ds, int port, | |
828 | struct phy_device *phydev); | |
ce31b31c FF |
829 | void (*fixed_link_update)(struct dsa_switch *ds, int port, |
830 | struct fixed_phy_status *st); | |
ec9436ba | 831 | |
11d8f3dd FF |
832 | /* |
833 | * PHYLINK integration | |
834 | */ | |
072eea6c RKO |
835 | void (*phylink_get_caps)(struct dsa_switch *ds, int port, |
836 | struct phylink_config *config); | |
11d8f3dd FF |
837 | void (*phylink_validate)(struct dsa_switch *ds, int port, |
838 | unsigned long *supported, | |
839 | struct phylink_link_state *state); | |
bde01822 RKO |
840 | struct phylink_pcs *(*phylink_mac_select_pcs)(struct dsa_switch *ds, |
841 | int port, | |
842 | phy_interface_t iface); | |
11d8f3dd FF |
843 | int (*phylink_mac_link_state)(struct dsa_switch *ds, int port, |
844 | struct phylink_link_state *state); | |
845 | void (*phylink_mac_config)(struct dsa_switch *ds, int port, | |
846 | unsigned int mode, | |
847 | const struct phylink_link_state *state); | |
848 | void (*phylink_mac_an_restart)(struct dsa_switch *ds, int port); | |
849 | void (*phylink_mac_link_down)(struct dsa_switch *ds, int port, | |
850 | unsigned int mode, | |
851 | phy_interface_t interface); | |
852 | void (*phylink_mac_link_up)(struct dsa_switch *ds, int port, | |
853 | unsigned int mode, | |
854 | phy_interface_t interface, | |
5b502a7b RK |
855 | struct phy_device *phydev, |
856 | int speed, int duplex, | |
857 | bool tx_pause, bool rx_pause); | |
11d8f3dd FF |
858 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, |
859 | struct phylink_link_state *state); | |
c8f0b869 | 860 | /* |
c2ec5f2e | 861 | * Port statistics counters. |
c8f0b869 | 862 | */ |
89f09048 FF |
863 | void (*get_strings)(struct dsa_switch *ds, int port, |
864 | u32 stringset, uint8_t *data); | |
c8f0b869 BH |
865 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
866 | int port, uint64_t *data); | |
89f09048 | 867 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
cf963573 FF |
868 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
869 | int port, uint64_t *data); | |
487d3855 AŠ |
870 | void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, |
871 | struct ethtool_eth_phy_stats *phy_stats); | |
872 | void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, | |
873 | struct ethtool_eth_mac_stats *mac_stats); | |
874 | void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, | |
875 | struct ethtool_eth_ctrl_stats *ctrl_stats); | |
c2ec5f2e OR |
876 | void (*get_stats64)(struct dsa_switch *ds, int port, |
877 | struct rtnl_link_stats64 *s); | |
a71acad9 OR |
878 | void (*self_test)(struct dsa_switch *ds, int port, |
879 | struct ethtool_test *etest, u64 *data); | |
24462549 | 880 | |
19e57c4e FF |
881 | /* |
882 | * ethtool Wake-on-LAN | |
883 | */ | |
884 | void (*get_wol)(struct dsa_switch *ds, int port, | |
885 | struct ethtool_wolinfo *w); | |
886 | int (*set_wol)(struct dsa_switch *ds, int port, | |
887 | struct ethtool_wolinfo *w); | |
888 | ||
0336369d BS |
889 | /* |
890 | * ethtool timestamp info | |
891 | */ | |
892 | int (*get_ts_info)(struct dsa_switch *ds, int port, | |
893 | struct ethtool_ts_info *ts); | |
894 | ||
d538eca8 VO |
895 | /* |
896 | * DCB ops | |
897 | */ | |
898 | int (*port_get_default_prio)(struct dsa_switch *ds, int port); | |
899 | int (*port_set_default_prio)(struct dsa_switch *ds, int port, | |
900 | u8 prio); | |
47d75f78 VO |
901 | int (*port_get_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp); |
902 | int (*port_add_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, | |
903 | u8 prio); | |
904 | int (*port_del_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, | |
905 | u8 prio); | |
d538eca8 | 906 | |
24462549 FF |
907 | /* |
908 | * Suspend and resume | |
909 | */ | |
910 | int (*suspend)(struct dsa_switch *ds); | |
911 | int (*resume)(struct dsa_switch *ds); | |
b2f2af21 FF |
912 | |
913 | /* | |
914 | * Port enable/disable | |
915 | */ | |
916 | int (*port_enable)(struct dsa_switch *ds, int port, | |
917 | struct phy_device *phy); | |
75104db0 | 918 | void (*port_disable)(struct dsa_switch *ds, int port); |
7905288f FF |
919 | |
920 | /* | |
08f50061 | 921 | * Port's MAC EEE settings |
7905288f | 922 | */ |
08f50061 VD |
923 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
924 | struct ethtool_eee *e); | |
925 | int (*get_mac_eee)(struct dsa_switch *ds, int port, | |
926 | struct ethtool_eee *e); | |
51579c3f | 927 | |
6793abb4 GR |
928 | /* EEPROM access */ |
929 | int (*get_eeprom_len)(struct dsa_switch *ds); | |
930 | int (*get_eeprom)(struct dsa_switch *ds, | |
931 | struct ethtool_eeprom *eeprom, u8 *data); | |
932 | int (*set_eeprom)(struct dsa_switch *ds, | |
933 | struct ethtool_eeprom *eeprom, u8 *data); | |
3d762a0f GR |
934 | |
935 | /* | |
936 | * Register access. | |
937 | */ | |
938 | int (*get_regs_len)(struct dsa_switch *ds, int port); | |
939 | void (*get_regs)(struct dsa_switch *ds, int port, | |
940 | struct ethtool_regs *regs, void *p); | |
b73adef6 | 941 | |
e358bef7 VO |
942 | /* |
943 | * Upper device tracking. | |
944 | */ | |
945 | int (*port_prechangeupper)(struct dsa_switch *ds, int port, | |
946 | struct netdev_notifier_changeupper_info *info); | |
947 | ||
b73adef6 FF |
948 | /* |
949 | * Bridge integration | |
950 | */ | |
34a79f63 | 951 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
71327a4e | 952 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
b079922b | 953 | struct dsa_bridge bridge, |
06b9cce4 VO |
954 | bool *tx_fwd_offload, |
955 | struct netlink_ext_ack *extack); | |
f123f2fb | 956 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
d3eed0e5 | 957 | struct dsa_bridge bridge); |
43c44a9f VD |
958 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
959 | u8 state); | |
7414af30 TW |
960 | int (*port_mst_state_set)(struct dsa_switch *ds, int port, |
961 | const struct switchdev_mst_state *state); | |
732f794c | 962 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
7414af30 | 963 | int (*port_vlan_fast_age)(struct dsa_switch *ds, int port, u16 vid); |
a8b659e7 VO |
964 | int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, |
965 | struct switchdev_brport_flags flags, | |
966 | struct netlink_ext_ack *extack); | |
967 | int (*port_bridge_flags)(struct dsa_switch *ds, int port, | |
968 | struct switchdev_brport_flags flags, | |
969 | struct netlink_ext_ack *extack); | |
2a778e1b | 970 | |
11149536 VD |
971 | /* |
972 | * VLAN support | |
973 | */ | |
fb2dabad | 974 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
89153ed6 VO |
975 | bool vlan_filtering, |
976 | struct netlink_ext_ack *extack); | |
1958d581 | 977 | int (*port_vlan_add)(struct dsa_switch *ds, int port, |
31046a5f VO |
978 | const struct switchdev_obj_port_vlan *vlan, |
979 | struct netlink_ext_ack *extack); | |
76e398a6 VD |
980 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
981 | const struct switchdev_obj_port_vlan *vlan); | |
8e6598a7 TW |
982 | int (*vlan_msti_set)(struct dsa_switch *ds, struct dsa_bridge bridge, |
983 | const struct switchdev_vlan_msti *msti); | |
984 | ||
2a778e1b VD |
985 | /* |
986 | * Forwarding database | |
987 | */ | |
1b6dd556 | 988 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
c2693363 VO |
989 | const unsigned char *addr, u16 vid, |
990 | struct dsa_db db); | |
2a778e1b | 991 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
c2693363 VO |
992 | const unsigned char *addr, u16 vid, |
993 | struct dsa_db db); | |
ea70ba98 | 994 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
2bedde1a | 995 | dsa_fdb_dump_cb_t *cb, void *data); |
e212fa7c | 996 | int (*lag_fdb_add)(struct dsa_switch *ds, struct dsa_lag lag, |
c2693363 VO |
997 | const unsigned char *addr, u16 vid, |
998 | struct dsa_db db); | |
e212fa7c | 999 | int (*lag_fdb_del)(struct dsa_switch *ds, struct dsa_lag lag, |
c2693363 VO |
1000 | const unsigned char *addr, u16 vid, |
1001 | struct dsa_db db); | |
8df30255 VD |
1002 | |
1003 | /* | |
1004 | * Multicast database | |
1005 | */ | |
a52b2da7 | 1006 | int (*port_mdb_add)(struct dsa_switch *ds, int port, |
c2693363 VO |
1007 | const struct switchdev_obj_port_mdb *mdb, |
1008 | struct dsa_db db); | |
8df30255 | 1009 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
c2693363 VO |
1010 | const struct switchdev_obj_port_mdb *mdb, |
1011 | struct dsa_db db); | |
bf9f2648 FF |
1012 | /* |
1013 | * RXNFC | |
1014 | */ | |
1015 | int (*get_rxnfc)(struct dsa_switch *ds, int port, | |
1016 | struct ethtool_rxnfc *nfc, u32 *rule_locs); | |
1017 | int (*set_rxnfc)(struct dsa_switch *ds, int port, | |
1018 | struct ethtool_rxnfc *nfc); | |
f50f2127 FF |
1019 | |
1020 | /* | |
1021 | * TC integration | |
1022 | */ | |
ed11bb1f VO |
1023 | int (*cls_flower_add)(struct dsa_switch *ds, int port, |
1024 | struct flow_cls_offload *cls, bool ingress); | |
1025 | int (*cls_flower_del)(struct dsa_switch *ds, int port, | |
1026 | struct flow_cls_offload *cls, bool ingress); | |
1027 | int (*cls_flower_stats)(struct dsa_switch *ds, int port, | |
1028 | struct flow_cls_offload *cls, bool ingress); | |
f50f2127 FF |
1029 | int (*port_mirror_add)(struct dsa_switch *ds, int port, |
1030 | struct dsa_mall_mirror_tc_entry *mirror, | |
0148bb50 | 1031 | bool ingress, struct netlink_ext_ack *extack); |
f50f2127 FF |
1032 | void (*port_mirror_del)(struct dsa_switch *ds, int port, |
1033 | struct dsa_mall_mirror_tc_entry *mirror); | |
34297176 VO |
1034 | int (*port_policer_add)(struct dsa_switch *ds, int port, |
1035 | struct dsa_mall_policer_tc_entry *policer); | |
1036 | void (*port_policer_del)(struct dsa_switch *ds, int port); | |
47d23af2 VO |
1037 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
1038 | enum tc_setup_type type, void *type_data); | |
40ef2c93 VD |
1039 | |
1040 | /* | |
1041 | * Cross-chip operations | |
1042 | */ | |
f66a6a69 VO |
1043 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, |
1044 | int sw_index, int port, | |
06b9cce4 VO |
1045 | struct dsa_bridge bridge, |
1046 | struct netlink_ext_ack *extack); | |
f66a6a69 VO |
1047 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, |
1048 | int sw_index, int port, | |
d3eed0e5 | 1049 | struct dsa_bridge bridge); |
058102a6 TW |
1050 | int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, |
1051 | int port); | |
1052 | int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, | |
dedd6a00 | 1053 | int port, struct dsa_lag lag, |
058102a6 TW |
1054 | struct netdev_lag_upper_info *info); |
1055 | int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, | |
dedd6a00 | 1056 | int port, struct dsa_lag lag); |
0336369d BS |
1057 | |
1058 | /* | |
1059 | * PTP functionality | |
1060 | */ | |
1061 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, | |
1062 | struct ifreq *ifr); | |
1063 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, | |
1064 | struct ifreq *ifr); | |
5c5416f5 YL |
1065 | void (*port_txtstamp)(struct dsa_switch *ds, int port, |
1066 | struct sk_buff *skb); | |
90af1059 BS |
1067 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, |
1068 | struct sk_buff *skb, unsigned int type); | |
97a69a0d | 1069 | |
0f06b855 | 1070 | /* Devlink parameters, etc */ |
6b297524 AL |
1071 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, |
1072 | struct devlink_param_gset_ctx *ctx); | |
1073 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, | |
1074 | struct devlink_param_gset_ctx *ctx); | |
0f06b855 AL |
1075 | int (*devlink_info_get)(struct dsa_switch *ds, |
1076 | struct devlink_info_req *req, | |
1077 | struct netlink_ext_ack *extack); | |
2a6ef763 VO |
1078 | int (*devlink_sb_pool_get)(struct dsa_switch *ds, |
1079 | unsigned int sb_index, u16 pool_index, | |
1080 | struct devlink_sb_pool_info *pool_info); | |
1081 | int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, | |
1082 | u16 pool_index, u32 size, | |
1083 | enum devlink_sb_threshold_type threshold_type, | |
1084 | struct netlink_ext_ack *extack); | |
1085 | int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, | |
1086 | unsigned int sb_index, u16 pool_index, | |
1087 | u32 *p_threshold); | |
1088 | int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, | |
1089 | unsigned int sb_index, u16 pool_index, | |
1090 | u32 threshold, | |
1091 | struct netlink_ext_ack *extack); | |
1092 | int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, | |
1093 | unsigned int sb_index, u16 tc_index, | |
1094 | enum devlink_sb_pool_type pool_type, | |
1095 | u16 *p_pool_index, u32 *p_threshold); | |
1096 | int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, | |
1097 | unsigned int sb_index, u16 tc_index, | |
1098 | enum devlink_sb_pool_type pool_type, | |
1099 | u16 pool_index, u32 threshold, | |
1100 | struct netlink_ext_ack *extack); | |
1101 | int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, | |
1102 | unsigned int sb_index); | |
1103 | int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, | |
1104 | unsigned int sb_index); | |
1105 | int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, | |
1106 | unsigned int sb_index, u16 pool_index, | |
1107 | u32 *p_cur, u32 *p_max); | |
1108 | int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, | |
1109 | unsigned int sb_index, u16 tc_index, | |
1110 | enum devlink_sb_pool_type pool_type, | |
1111 | u32 *p_cur, u32 *p_max); | |
bfcb8132 VO |
1112 | |
1113 | /* | |
1114 | * MTU change functionality. Switches can also adjust their MRU through | |
1115 | * this method. By MTU, one understands the SDU (L2 payload) length. | |
1116 | * If the switch needs to account for the DSA tag on the CPU port, this | |
ab88d64a | 1117 | * method needs to do so privately. |
bfcb8132 VO |
1118 | */ |
1119 | int (*port_change_mtu)(struct dsa_switch *ds, int port, | |
1120 | int new_mtu); | |
1121 | int (*port_max_mtu)(struct dsa_switch *ds, int port); | |
058102a6 TW |
1122 | |
1123 | /* | |
1124 | * LAG integration | |
1125 | */ | |
1126 | int (*port_lag_change)(struct dsa_switch *ds, int port); | |
1127 | int (*port_lag_join)(struct dsa_switch *ds, int port, | |
dedd6a00 | 1128 | struct dsa_lag lag, |
058102a6 TW |
1129 | struct netdev_lag_upper_info *info); |
1130 | int (*port_lag_leave)(struct dsa_switch *ds, int port, | |
dedd6a00 | 1131 | struct dsa_lag lag); |
18596f50 GM |
1132 | |
1133 | /* | |
1134 | * HSR integration | |
1135 | */ | |
1136 | int (*port_hsr_join)(struct dsa_switch *ds, int port, | |
1137 | struct net_device *hsr); | |
1138 | int (*port_hsr_leave)(struct dsa_switch *ds, int port, | |
1139 | struct net_device *hsr); | |
c595c433 HV |
1140 | |
1141 | /* | |
1142 | * MRP integration | |
1143 | */ | |
1144 | int (*port_mrp_add)(struct dsa_switch *ds, int port, | |
1145 | const struct switchdev_obj_mrp *mrp); | |
1146 | int (*port_mrp_del)(struct dsa_switch *ds, int port, | |
1147 | const struct switchdev_obj_mrp *mrp); | |
1148 | int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, | |
1149 | const struct switchdev_obj_ring_role_mrp *mrp); | |
1150 | int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, | |
1151 | const struct switchdev_obj_ring_role_mrp *mrp); | |
5da11eb4 VO |
1152 | |
1153 | /* | |
1154 | * tag_8021q operations | |
1155 | */ | |
1156 | int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, | |
1157 | u16 flags); | |
1158 | int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); | |
295ab96f VO |
1159 | |
1160 | /* | |
1161 | * DSA master tracking operations | |
1162 | */ | |
1163 | void (*master_state_change)(struct dsa_switch *ds, | |
1164 | const struct net_device *master, | |
1165 | bool operational); | |
6b297524 AL |
1166 | }; |
1167 | ||
1168 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ | |
1169 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ | |
1170 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) | |
1171 | ||
1172 | int dsa_devlink_param_get(struct devlink *dl, u32 id, | |
1173 | struct devlink_param_gset_ctx *ctx); | |
1174 | int dsa_devlink_param_set(struct devlink *dl, u32 id, | |
1175 | struct devlink_param_gset_ctx *ctx); | |
1176 | int dsa_devlink_params_register(struct dsa_switch *ds, | |
1177 | const struct devlink_param *params, | |
1178 | size_t params_count); | |
1179 | void dsa_devlink_params_unregister(struct dsa_switch *ds, | |
1180 | const struct devlink_param *params, | |
1181 | size_t params_count); | |
5cd73fbd AL |
1182 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
1183 | const char *resource_name, | |
1184 | u64 resource_size, | |
1185 | u64 resource_id, | |
1186 | u64 parent_resource_id, | |
1187 | const struct devlink_resource_size_params *size_params); | |
1188 | ||
1189 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); | |
1190 | ||
1191 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, | |
1192 | u64 resource_id, | |
1193 | devlink_resource_occ_get_t *occ_get, | |
1194 | void *occ_get_priv); | |
1195 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, | |
1196 | u64 resource_id); | |
97c82c23 AL |
1197 | struct devlink_region * |
1198 | dsa_devlink_region_create(struct dsa_switch *ds, | |
1199 | const struct devlink_region_ops *ops, | |
1200 | u32 region_max_snapshots, u64 region_size); | |
08156ba4 AL |
1201 | struct devlink_region * |
1202 | dsa_devlink_port_region_create(struct dsa_switch *ds, | |
1203 | int port, | |
1204 | const struct devlink_port_region_ops *ops, | |
1205 | u32 region_max_snapshots, u64 region_size); | |
97c82c23 AL |
1206 | void dsa_devlink_region_destroy(struct devlink_region *region); |
1207 | ||
e1eea811 | 1208 | struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); |
5cd73fbd | 1209 | |
6b297524 AL |
1210 | struct dsa_devlink_priv { |
1211 | struct dsa_switch *ds; | |
c8f0b869 BH |
1212 | }; |
1213 | ||
ccc3e6b0 AL |
1214 | static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) |
1215 | { | |
1216 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
1217 | ||
1218 | return dl_priv->ds; | |
1219 | } | |
1220 | ||
7d1e2a10 AL |
1221 | static inline |
1222 | struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) | |
1223 | { | |
1224 | struct devlink *dl = port->devlink; | |
1225 | struct dsa_devlink_priv *dl_priv = devlink_priv(dl); | |
1226 | ||
1227 | return dl_priv->ds; | |
1228 | } | |
1229 | ||
1230 | static inline int dsa_devlink_port_to_port(struct devlink_port *port) | |
1231 | { | |
1232 | return port->index; | |
1233 | } | |
1234 | ||
ab3d408d FF |
1235 | struct dsa_switch_driver { |
1236 | struct list_head list; | |
a82f67af | 1237 | const struct dsa_switch_ops *ops; |
ab3d408d FF |
1238 | }; |
1239 | ||
14b89f36 | 1240 | struct net_device *dsa_dev_to_net_device(struct device *dev); |
c8f0b869 | 1241 | |
f9cef64f VO |
1242 | typedef int dsa_fdb_walk_cb_t(struct dsa_switch *ds, int port, |
1243 | const unsigned char *addr, u16 vid, | |
1244 | struct dsa_db db); | |
1245 | ||
1246 | int dsa_port_walk_fdbs(struct dsa_switch *ds, int port, dsa_fdb_walk_cb_t cb); | |
1247 | int dsa_port_walk_mdbs(struct dsa_switch *ds, int port, dsa_fdb_walk_cb_t cb); | |
7e580490 VO |
1248 | bool dsa_fdb_present_in_other_db(struct dsa_switch *ds, int port, |
1249 | const unsigned char *addr, u16 vid, | |
1250 | struct dsa_db db); | |
1251 | bool dsa_mdb_present_in_other_db(struct dsa_switch *ds, int port, | |
1252 | const struct switchdev_obj_port_mdb *mdb, | |
1253 | struct dsa_db db); | |
f9cef64f | 1254 | |
73a7ece8 | 1255 | /* Keep inline for faster access in hot path */ |
9eb8eff0 | 1256 | static inline bool netdev_uses_dsa(const struct net_device *dev) |
c6e970a0 AL |
1257 | { |
1258 | #if IS_ENABLED(CONFIG_NET_DSA) | |
717ffbfb | 1259 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
c6e970a0 AL |
1260 | #endif |
1261 | return false; | |
1262 | } | |
1263 | ||
9790cf20 VO |
1264 | /* All DSA tags that push the EtherType to the right (basically all except tail |
1265 | * tags, which don't break dissection) can be treated the same from the | |
1266 | * perspective of the flow dissector. | |
1267 | * | |
1268 | * We need to return: | |
1269 | * - offset: the (B - A) difference between: | |
1270 | * A. the position of the real EtherType and | |
1271 | * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes | |
1272 | * after the normal EtherType was supposed to be) | |
1273 | * The offset in bytes is exactly equal to the tagger overhead (and half of | |
1274 | * that, in __be16 shorts). | |
1275 | * | |
1276 | * - proto: the value of the real EtherType. | |
1277 | */ | |
1278 | static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, | |
1279 | __be16 *proto, int *offset) | |
1280 | { | |
1281 | #if IS_ENABLED(CONFIG_NET_DSA) | |
1282 | const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; | |
4e500251 | 1283 | int tag_len = ops->needed_headroom; |
9790cf20 VO |
1284 | |
1285 | *offset = tag_len; | |
1286 | *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; | |
1287 | #endif | |
1288 | } | |
1289 | ||
4cfab356 FF |
1290 | #if IS_ENABLED(CONFIG_NET_DSA) |
1291 | static inline int __dsa_netdevice_ops_check(struct net_device *dev) | |
1292 | { | |
1293 | int err = -EOPNOTSUPP; | |
1294 | ||
1295 | if (!dev->dsa_ptr) | |
1296 | return err; | |
1297 | ||
1298 | if (!dev->dsa_ptr->netdev_ops) | |
1299 | return err; | |
1300 | ||
1301 | return 0; | |
1302 | } | |
1303 | ||
a7605370 AB |
1304 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1305 | int cmd) | |
4cfab356 FF |
1306 | { |
1307 | const struct dsa_netdevice_ops *ops; | |
1308 | int err; | |
1309 | ||
1310 | err = __dsa_netdevice_ops_check(dev); | |
1311 | if (err) | |
1312 | return err; | |
1313 | ||
1314 | ops = dev->dsa_ptr->netdev_ops; | |
1315 | ||
a7605370 | 1316 | return ops->ndo_eth_ioctl(dev, ifr, cmd); |
4cfab356 | 1317 | } |
4cfab356 | 1318 | #else |
a7605370 AB |
1319 | static inline int dsa_ndo_eth_ioctl(struct net_device *dev, struct ifreq *ifr, |
1320 | int cmd) | |
4cfab356 FF |
1321 | { |
1322 | return -EOPNOTSUPP; | |
1323 | } | |
4cfab356 FF |
1324 | #endif |
1325 | ||
83c0afae | 1326 | void dsa_unregister_switch(struct dsa_switch *ds); |
23c9ee49 | 1327 | int dsa_register_switch(struct dsa_switch *ds); |
0650bf52 | 1328 | void dsa_switch_shutdown(struct dsa_switch *ds); |
3b7bc1f0 | 1329 | struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |
a2614140 | 1330 | void dsa_flush_workqueue(void); |
ea825e70 FF |
1331 | #ifdef CONFIG_PM_SLEEP |
1332 | int dsa_switch_suspend(struct dsa_switch *ds); | |
1333 | int dsa_switch_resume(struct dsa_switch *ds); | |
1334 | #else | |
1335 | static inline int dsa_switch_suspend(struct dsa_switch *ds) | |
1336 | { | |
1337 | return 0; | |
1338 | } | |
1339 | static inline int dsa_switch_resume(struct dsa_switch *ds) | |
1340 | { | |
1341 | return 0; | |
1342 | } | |
1343 | #endif /* CONFIG_PM_SLEEP */ | |
1344 | ||
60724d4b | 1345 | #if IS_ENABLED(CONFIG_NET_DSA) |
a5e3c9ba | 1346 | bool dsa_slave_dev_check(const struct net_device *dev); |
60724d4b | 1347 | #else |
a5e3c9ba VO |
1348 | static inline bool dsa_slave_dev_check(const struct net_device *dev) |
1349 | { | |
1350 | return false; | |
1351 | } | |
60724d4b FF |
1352 | #endif |
1353 | ||
97a69a0d | 1354 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
11d8f3dd | 1355 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
cf963573 | 1356 | |
d3b8c049 AL |
1357 | struct dsa_tag_driver { |
1358 | const struct dsa_device_ops *ops; | |
1359 | struct list_head list; | |
1360 | struct module *owner; | |
1361 | }; | |
1362 | ||
1363 | void dsa_tag_drivers_register(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1364 | unsigned int count, | |
1365 | struct module *owner); | |
1366 | void dsa_tag_drivers_unregister(struct dsa_tag_driver *dsa_tag_driver_array[], | |
1367 | unsigned int count); | |
1368 | ||
1369 | #define dsa_tag_driver_module_drivers(__dsa_tag_drivers_array, __count) \ | |
1370 | static int __init dsa_tag_driver_module_init(void) \ | |
1371 | { \ | |
1372 | dsa_tag_drivers_register(__dsa_tag_drivers_array, __count, \ | |
1373 | THIS_MODULE); \ | |
1374 | return 0; \ | |
1375 | } \ | |
1376 | module_init(dsa_tag_driver_module_init); \ | |
1377 | \ | |
1378 | static void __exit dsa_tag_driver_module_exit(void) \ | |
1379 | { \ | |
1380 | dsa_tag_drivers_unregister(__dsa_tag_drivers_array, __count); \ | |
1381 | } \ | |
1382 | module_exit(dsa_tag_driver_module_exit) | |
1383 | ||
1384 | /** | |
1385 | * module_dsa_tag_drivers() - Helper macro for registering DSA tag | |
1386 | * drivers | |
c7d9a675 | 1387 | * @__ops_array: Array of tag driver structures |
d3b8c049 AL |
1388 | * |
1389 | * Helper macro for DSA tag drivers which do not do anything special | |
1390 | * in module init/exit. Each module may only use this macro once, and | |
1391 | * calling it replaces module_init() and module_exit(). | |
1392 | */ | |
1393 | #define module_dsa_tag_drivers(__ops_array) \ | |
1394 | dsa_tag_driver_module_drivers(__ops_array, ARRAY_SIZE(__ops_array)) | |
1395 | ||
1396 | #define DSA_TAG_DRIVER_NAME(__ops) dsa_tag_driver ## _ ## __ops | |
1397 | ||
1398 | /* Create a static structure we can build a linked list of dsa_tag | |
1399 | * drivers | |
1400 | */ | |
1401 | #define DSA_TAG_DRIVER(__ops) \ | |
1402 | static struct dsa_tag_driver DSA_TAG_DRIVER_NAME(__ops) = { \ | |
1403 | .ops = &__ops, \ | |
1404 | } | |
1405 | ||
1406 | /** | |
1407 | * module_dsa_tag_driver() - Helper macro for registering a single DSA tag | |
1408 | * driver | |
1409 | * @__ops: Single tag driver structures | |
1410 | * | |
1411 | * Helper macro for DSA tag drivers which do not do anything special | |
1412 | * in module init/exit. Each module may only use this macro once, and | |
1413 | * calling it replaces module_init() and module_exit(). | |
1414 | */ | |
1415 | #define module_dsa_tag_driver(__ops) \ | |
1416 | DSA_TAG_DRIVER(__ops); \ | |
1417 | \ | |
1418 | static struct dsa_tag_driver *dsa_tag_driver_array[] = { \ | |
1419 | &DSA_TAG_DRIVER_NAME(__ops) \ | |
1420 | }; \ | |
1421 | module_dsa_tag_drivers(dsa_tag_driver_array) | |
91da11f8 | 1422 | #endif |
d3b8c049 | 1423 |