1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
---|---|
2 | /* |
3 | * include/net/dsa.h - Driver for Distributed Switch Architecture switch chips |
4 | * Copyright (c) 2008-2009 Marvell Semiconductor |
5 | */ |
6 | |
7 | #ifndef __LINUX_NET_DSA_H |
8 | #define __LINUX_NET_DSA_H |
9 | |
10 | #include <linux/if.h> |
11 | #include <linux/if_ether.h> |
12 | #include <linux/list.h> |
13 | #include <linux/notifier.h> |
14 | #include <linux/timer.h> |
15 | #include <linux/workqueue.h> |
16 | #include <linux/of.h> |
17 | #include <linux/ethtool.h> |
18 | #include <linux/net_tstamp.h> |
19 | #include <linux/phy.h> |
20 | #include <linux/platform_data/dsa.h> |
21 | #include <linux/phylink.h> |
22 | #include <net/devlink.h> |
23 | #include <net/switchdev.h> |
24 | |
25 | struct dsa_8021q_context; |
26 | struct tc_action; |
27 | |
28 | #define DSA_TAG_PROTO_NONE_VALUE 0 |
29 | #define DSA_TAG_PROTO_BRCM_VALUE 1 |
30 | #define DSA_TAG_PROTO_BRCM_PREPEND_VALUE 2 |
31 | #define DSA_TAG_PROTO_DSA_VALUE 3 |
32 | #define DSA_TAG_PROTO_EDSA_VALUE 4 |
33 | #define DSA_TAG_PROTO_GSWIP_VALUE 5 |
34 | #define DSA_TAG_PROTO_KSZ9477_VALUE 6 |
35 | #define DSA_TAG_PROTO_KSZ9893_VALUE 7 |
36 | #define DSA_TAG_PROTO_LAN9303_VALUE 8 |
37 | #define DSA_TAG_PROTO_MTK_VALUE 9 |
38 | #define DSA_TAG_PROTO_QCA_VALUE 10 |
39 | #define DSA_TAG_PROTO_TRAILER_VALUE 11 |
40 | #define DSA_TAG_PROTO_8021Q_VALUE 12 |
41 | #define DSA_TAG_PROTO_SJA1105_VALUE 13 |
42 | #define DSA_TAG_PROTO_KSZ8795_VALUE 14 |
43 | #define DSA_TAG_PROTO_OCELOT_VALUE 15 |
44 | #define DSA_TAG_PROTO_AR9331_VALUE 16 |
45 | #define DSA_TAG_PROTO_RTL4_A_VALUE 17 |
46 | #define DSA_TAG_PROTO_HELLCREEK_VALUE 18 |
47 | #define DSA_TAG_PROTO_XRS700X_VALUE 19 |
48 | #define DSA_TAG_PROTO_OCELOT_8021Q_VALUE 20 |
49 | #define DSA_TAG_PROTO_SEVILLE_VALUE 21 |
50 | #define DSA_TAG_PROTO_BRCM_LEGACY_VALUE 22 |
51 | #define DSA_TAG_PROTO_SJA1110_VALUE 23 |
52 | #define DSA_TAG_PROTO_RTL8_4_VALUE 24 |
53 | #define DSA_TAG_PROTO_RTL8_4T_VALUE 25 |
54 | #define DSA_TAG_PROTO_RZN1_A5PSW_VALUE 26 |
55 | #define DSA_TAG_PROTO_LAN937X_VALUE 27 |
56 | #define DSA_TAG_PROTO_VSC73XX_8021Q_VALUE 28 |
57 | |
58 | enum dsa_tag_protocol { |
59 | DSA_TAG_PROTO_NONE = DSA_TAG_PROTO_NONE_VALUE, |
60 | DSA_TAG_PROTO_BRCM = DSA_TAG_PROTO_BRCM_VALUE, |
61 | DSA_TAG_PROTO_BRCM_LEGACY = DSA_TAG_PROTO_BRCM_LEGACY_VALUE, |
62 | DSA_TAG_PROTO_BRCM_PREPEND = DSA_TAG_PROTO_BRCM_PREPEND_VALUE, |
63 | DSA_TAG_PROTO_DSA = DSA_TAG_PROTO_DSA_VALUE, |
64 | DSA_TAG_PROTO_EDSA = DSA_TAG_PROTO_EDSA_VALUE, |
65 | DSA_TAG_PROTO_GSWIP = DSA_TAG_PROTO_GSWIP_VALUE, |
66 | DSA_TAG_PROTO_KSZ9477 = DSA_TAG_PROTO_KSZ9477_VALUE, |
67 | DSA_TAG_PROTO_KSZ9893 = DSA_TAG_PROTO_KSZ9893_VALUE, |
68 | DSA_TAG_PROTO_LAN9303 = DSA_TAG_PROTO_LAN9303_VALUE, |
69 | DSA_TAG_PROTO_MTK = DSA_TAG_PROTO_MTK_VALUE, |
70 | DSA_TAG_PROTO_QCA = DSA_TAG_PROTO_QCA_VALUE, |
71 | DSA_TAG_PROTO_TRAILER = DSA_TAG_PROTO_TRAILER_VALUE, |
72 | DSA_TAG_PROTO_8021Q = DSA_TAG_PROTO_8021Q_VALUE, |
73 | DSA_TAG_PROTO_SJA1105 = DSA_TAG_PROTO_SJA1105_VALUE, |
74 | DSA_TAG_PROTO_KSZ8795 = DSA_TAG_PROTO_KSZ8795_VALUE, |
75 | DSA_TAG_PROTO_OCELOT = DSA_TAG_PROTO_OCELOT_VALUE, |
76 | DSA_TAG_PROTO_AR9331 = DSA_TAG_PROTO_AR9331_VALUE, |
77 | DSA_TAG_PROTO_RTL4_A = DSA_TAG_PROTO_RTL4_A_VALUE, |
78 | DSA_TAG_PROTO_HELLCREEK = DSA_TAG_PROTO_HELLCREEK_VALUE, |
79 | DSA_TAG_PROTO_XRS700X = DSA_TAG_PROTO_XRS700X_VALUE, |
80 | DSA_TAG_PROTO_OCELOT_8021Q = DSA_TAG_PROTO_OCELOT_8021Q_VALUE, |
81 | DSA_TAG_PROTO_SEVILLE = DSA_TAG_PROTO_SEVILLE_VALUE, |
82 | DSA_TAG_PROTO_SJA1110 = DSA_TAG_PROTO_SJA1110_VALUE, |
83 | DSA_TAG_PROTO_RTL8_4 = DSA_TAG_PROTO_RTL8_4_VALUE, |
84 | DSA_TAG_PROTO_RTL8_4T = DSA_TAG_PROTO_RTL8_4T_VALUE, |
85 | DSA_TAG_PROTO_RZN1_A5PSW = DSA_TAG_PROTO_RZN1_A5PSW_VALUE, |
86 | DSA_TAG_PROTO_LAN937X = DSA_TAG_PROTO_LAN937X_VALUE, |
87 | DSA_TAG_PROTO_VSC73XX_8021Q = DSA_TAG_PROTO_VSC73XX_8021Q_VALUE, |
88 | }; |
89 | |
90 | struct dsa_switch; |
91 | |
92 | struct dsa_device_ops { |
93 | struct sk_buff *(*xmit)(struct sk_buff *skb, struct net_device *dev); |
94 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
95 | void (*flow_dissect)(const struct sk_buff *skb, __be16 *proto, |
96 | int *offset); |
97 | int (*connect)(struct dsa_switch *ds); |
98 | void (*disconnect)(struct dsa_switch *ds); |
99 | unsigned int needed_headroom; |
100 | unsigned int needed_tailroom; |
101 | const char *name; |
102 | enum dsa_tag_protocol proto; |
103 | /* Some tagging protocols either mangle or shift the destination MAC |
104 | * address, in which case the DSA conduit would drop packets on ingress |
105 | * if what it understands out of the destination MAC address is not in |
106 | * its RX filter. |
107 | */ |
108 | bool promisc_on_conduit; |
109 | }; |
110 | |
111 | struct dsa_lag { |
112 | struct net_device *dev; |
113 | unsigned int id; |
114 | struct mutex fdb_lock; |
115 | struct list_head fdbs; |
116 | refcount_t refcount; |
117 | }; |
118 | |
119 | struct dsa_switch_tree { |
120 | struct list_head list; |
121 | |
122 | /* List of switch ports */ |
123 | struct list_head ports; |
124 | |
125 | /* Notifier chain for switch-wide events */ |
126 | struct raw_notifier_head nh; |
127 | |
128 | /* Tree identifier */ |
129 | unsigned int index; |
130 | |
131 | /* Number of switches attached to this tree */ |
132 | struct kref refcount; |
133 | |
134 | /* Maps offloaded LAG netdevs to a zero-based linear ID for |
135 | * drivers that need it. |
136 | */ |
137 | struct dsa_lag **lags; |
138 | |
139 | /* Tagging protocol operations */ |
140 | const struct dsa_device_ops *tag_ops; |
141 | |
142 | /* Default tagging protocol preferred by the switches in this |
143 | * tree. |
144 | */ |
145 | enum dsa_tag_protocol default_proto; |
146 | |
147 | /* Has this tree been applied to the hardware? */ |
148 | bool setup; |
149 | |
150 | /* |
151 | * Configuration data for the platform device that owns |
152 | * this dsa switch tree instance. |
153 | */ |
154 | struct dsa_platform_data *pd; |
155 | |
156 | /* List of DSA links composing the routing table */ |
157 | struct list_head rtable; |
158 | |
159 | /* Length of "lags" array */ |
160 | unsigned int lags_len; |
161 | |
162 | /* Track the largest switch index within a tree */ |
163 | unsigned int last_switch; |
164 | }; |
165 | |
166 | /* LAG IDs are one-based, the dst->lags array is zero-based */ |
167 | #define dsa_lags_foreach_id(_id, _dst) \ |
168 | for ((_id) = 1; (_id) <= (_dst)->lags_len; (_id)++) \ |
169 | if ((_dst)->lags[(_id) - 1]) |
170 | |
171 | #define dsa_lag_foreach_port(_dp, _dst, _lag) \ |
172 | list_for_each_entry((_dp), &(_dst)->ports, list) \ |
173 | if (dsa_port_offloads_lag((_dp), (_lag))) |
174 | |
175 | #define dsa_hsr_foreach_port(_dp, _ds, _hsr) \ |
176 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ |
177 | if ((_dp)->ds == (_ds) && (_dp)->hsr_dev == (_hsr)) |
178 | |
179 | static inline struct dsa_lag *dsa_lag_by_id(struct dsa_switch_tree *dst, |
180 | unsigned int id) |
181 | { |
182 | /* DSA LAG IDs are one-based, dst->lags is zero-based */ |
183 | return dst->lags[id - 1]; |
184 | } |
185 | |
186 | static inline int dsa_lag_id(struct dsa_switch_tree *dst, |
187 | struct net_device *lag_dev) |
188 | { |
189 | unsigned int id; |
190 | |
191 | dsa_lags_foreach_id(id, dst) { |
192 | struct dsa_lag *lag = dsa_lag_by_id(dst, id); |
193 | |
194 | if (lag->dev == lag_dev) |
195 | return lag->id; |
196 | } |
197 | |
198 | return -ENODEV; |
199 | } |
200 | |
201 | /* TC matchall action types */ |
202 | enum dsa_port_mall_action_type { |
203 | DSA_PORT_MALL_MIRROR, |
204 | DSA_PORT_MALL_POLICER, |
205 | }; |
206 | |
207 | /* TC mirroring entry */ |
208 | struct dsa_mall_mirror_tc_entry { |
209 | u8 to_local_port; |
210 | bool ingress; |
211 | }; |
212 | |
213 | /* TC port policer entry */ |
214 | struct dsa_mall_policer_tc_entry { |
215 | u32 burst; |
216 | u64 rate_bytes_per_sec; |
217 | }; |
218 | |
219 | /* TC matchall entry */ |
220 | struct dsa_mall_tc_entry { |
221 | struct list_head list; |
222 | unsigned long cookie; |
223 | enum dsa_port_mall_action_type type; |
224 | union { |
225 | struct dsa_mall_mirror_tc_entry mirror; |
226 | struct dsa_mall_policer_tc_entry policer; |
227 | }; |
228 | }; |
229 | |
230 | struct dsa_bridge { |
231 | struct net_device *dev; |
232 | unsigned int num; |
233 | bool tx_fwd_offload; |
234 | refcount_t refcount; |
235 | }; |
236 | |
237 | struct dsa_port { |
238 | /* A CPU port is physically connected to a conduit device. A user port |
239 | * exposes a network device to user-space, called 'user' here. |
240 | */ |
241 | union { |
242 | struct net_device *conduit; |
243 | struct net_device *user; |
244 | }; |
245 | |
246 | /* Copy of the tagging protocol operations, for quicker access |
247 | * in the data path. Valid only for the CPU ports. |
248 | */ |
249 | const struct dsa_device_ops *tag_ops; |
250 | |
251 | /* Copies for faster access in conduit receive hot path */ |
252 | struct dsa_switch_tree *dst; |
253 | struct sk_buff *(*rcv)(struct sk_buff *skb, struct net_device *dev); |
254 | |
255 | struct dsa_switch *ds; |
256 | |
257 | unsigned int index; |
258 | |
259 | enum { |
260 | DSA_PORT_TYPE_UNUSED = 0, |
261 | DSA_PORT_TYPE_CPU, |
262 | DSA_PORT_TYPE_DSA, |
263 | DSA_PORT_TYPE_USER, |
264 | } type; |
265 | |
266 | const char *name; |
267 | struct dsa_port *cpu_dp; |
268 | u8 mac[ETH_ALEN]; |
269 | |
270 | u8 stp_state; |
271 | |
272 | /* Warning: the following bit fields are not atomic, and updating them |
273 | * can only be done from code paths where concurrency is not possible |
274 | * (probe time or under rtnl_lock). |
275 | */ |
276 | u8 vlan_filtering:1; |
277 | |
278 | /* Managed by DSA on user ports and by drivers on CPU and DSA ports */ |
279 | u8 learning:1; |
280 | |
281 | u8 lag_tx_enabled:1; |
282 | |
283 | /* conduit state bits, valid only on CPU ports */ |
284 | u8 conduit_admin_up:1; |
285 | u8 conduit_oper_up:1; |
286 | |
287 | /* Valid only on user ports */ |
288 | u8 cpu_port_in_lag:1; |
289 | |
290 | u8 setup:1; |
291 | |
292 | struct device_node *dn; |
293 | unsigned int ageing_time; |
294 | |
295 | struct dsa_bridge *bridge; |
296 | struct devlink_port devlink_port; |
297 | struct phylink *pl; |
298 | struct phylink_config pl_config; |
299 | struct dsa_lag *lag; |
300 | struct net_device *hsr_dev; |
301 | |
302 | struct list_head list; |
303 | |
304 | /* |
305 | * Original copy of the conduit netdev ethtool_ops |
306 | */ |
307 | const struct ethtool_ops *orig_ethtool_ops; |
308 | |
309 | /* List of MAC addresses that must be forwarded on this port. |
310 | * These are only valid on CPU ports and DSA links. |
311 | */ |
312 | struct mutex addr_lists_lock; |
313 | struct list_head fdbs; |
314 | struct list_head mdbs; |
315 | |
316 | struct mutex vlans_lock; |
317 | union { |
318 | /* List of VLANs that CPU and DSA ports are members of. |
319 | * Access to this is serialized by the sleepable @vlans_lock. |
320 | */ |
321 | struct list_head vlans; |
322 | /* List of VLANs that user ports are members of. |
323 | * Access to this is serialized by netif_addr_lock_bh(). |
324 | */ |
325 | struct list_head user_vlans; |
326 | }; |
327 | }; |
328 | |
329 | static inline struct dsa_port * |
330 | dsa_phylink_to_port(struct phylink_config *config) |
331 | { |
332 | return container_of(config, struct dsa_port, pl_config); |
333 | } |
334 | |
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 | |
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 | |
362 | struct dsa_mac_addr { |
363 | unsigned char addr[ETH_ALEN]; |
364 | u16 vid; |
365 | refcount_t refcount; |
366 | struct list_head list; |
367 | struct dsa_db db; |
368 | }; |
369 | |
370 | struct dsa_vlan { |
371 | u16 vid; |
372 | refcount_t refcount; |
373 | struct list_head list; |
374 | }; |
375 | |
376 | struct dsa_switch { |
377 | struct device *dev; |
378 | |
379 | /* |
380 | * Parent switch tree, and switch index. |
381 | */ |
382 | struct dsa_switch_tree *dst; |
383 | unsigned int index; |
384 | |
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 | */ |
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 | /* Pop the default_pvid of VLAN-unaware bridge ports from tagged frames. |
407 | * DEPRECATED: Do NOT set this field in new drivers. Instead look at |
408 | * the dsa_software_vlan_untag() comments. |
409 | */ |
410 | u32 untag_bridge_pvid:1; |
411 | /* Pop the default_pvid of VLAN-aware bridge ports from tagged frames. |
412 | * Useful if the switch cannot preserve the VLAN tag as seen on the |
413 | * wire for user port ingress, and chooses to send all frames as |
414 | * VLAN-tagged to the CPU, including those which were originally |
415 | * untagged. |
416 | */ |
417 | u32 untag_vlan_aware_bridge_pvid:1; |
418 | |
419 | /* Let DSA manage the FDB entries towards the |
420 | * CPU, based on the software bridge database. |
421 | */ |
422 | u32 assisted_learning_on_cpu_port:1; |
423 | |
424 | /* In case vlan_filtering_is_global is set, the VLAN awareness state |
425 | * should be retrieved from here and not from the per-port settings. |
426 | */ |
427 | u32 vlan_filtering:1; |
428 | |
429 | /* For switches that only have the MRU configurable. To ensure the |
430 | * configured MTU is not exceeded, normalization of MRU on all bridged |
431 | * interfaces is needed. |
432 | */ |
433 | u32 mtu_enforcement_ingress:1; |
434 | |
435 | /* Drivers that isolate the FDBs of multiple bridges must set this |
436 | * to true to receive the bridge as an argument in .port_fdb_{add,del} |
437 | * and .port_mdb_{add,del}. Otherwise, the bridge.num will always be |
438 | * passed as zero. |
439 | */ |
440 | u32 fdb_isolation:1; |
441 | |
442 | /* Drivers that have global DSCP mapping settings must set this to |
443 | * true to automatically apply the settings to all ports. |
444 | */ |
445 | u32 dscp_prio_mapping_is_global:1; |
446 | |
447 | /* Listener for switch fabric events */ |
448 | struct notifier_block nb; |
449 | |
450 | /* |
451 | * Give the switch driver somewhere to hang its private data |
452 | * structure. |
453 | */ |
454 | void *priv; |
455 | |
456 | void *tagger_data; |
457 | |
458 | /* |
459 | * Configuration data for this switch. |
460 | */ |
461 | struct dsa_chip_data *cd; |
462 | |
463 | /* |
464 | * The switch operations. |
465 | */ |
466 | const struct dsa_switch_ops *ops; |
467 | |
468 | /* |
469 | * Allow a DSA switch driver to override the phylink MAC ops |
470 | */ |
471 | const struct phylink_mac_ops *phylink_mac_ops; |
472 | |
473 | /* |
474 | * User mii_bus and devices for the individual ports. |
475 | */ |
476 | u32 phys_mii_mask; |
477 | struct mii_bus *user_mii_bus; |
478 | |
479 | /* Ageing Time limits in msecs */ |
480 | unsigned int ageing_time_min; |
481 | unsigned int ageing_time_max; |
482 | |
483 | /* Storage for drivers using tag_8021q */ |
484 | struct dsa_8021q_context *tag_8021q_ctx; |
485 | |
486 | /* devlink used to represent this switch device */ |
487 | struct devlink *devlink; |
488 | |
489 | /* Number of switch port queues */ |
490 | unsigned int num_tx_queues; |
491 | |
492 | /* Drivers that benefit from having an ID associated with each |
493 | * offloaded LAG should set this to the maximum number of |
494 | * supported IDs. DSA will then maintain a mapping of _at |
495 | * least_ these many IDs, accessible to drivers via |
496 | * dsa_lag_id(). |
497 | */ |
498 | unsigned int num_lag_ids; |
499 | |
500 | /* Drivers that support bridge forwarding offload or FDB isolation |
501 | * should set this to the maximum number of bridges spanning the same |
502 | * switch tree (or all trees, in the case of cross-tree bridging |
503 | * support) that can be offloaded. |
504 | */ |
505 | unsigned int max_num_bridges; |
506 | |
507 | unsigned int num_ports; |
508 | }; |
509 | |
510 | static inline struct dsa_port *dsa_to_port(struct dsa_switch *ds, int p) |
511 | { |
512 | struct dsa_switch_tree *dst = ds->dst; |
513 | struct dsa_port *dp; |
514 | |
515 | list_for_each_entry(dp, &dst->ports, list) |
516 | if (dp->ds == ds && dp->index == p) |
517 | return dp; |
518 | |
519 | return NULL; |
520 | } |
521 | |
522 | static inline bool dsa_port_is_dsa(struct dsa_port *port) |
523 | { |
524 | return port->type == DSA_PORT_TYPE_DSA; |
525 | } |
526 | |
527 | static inline bool dsa_port_is_cpu(struct dsa_port *port) |
528 | { |
529 | return port->type == DSA_PORT_TYPE_CPU; |
530 | } |
531 | |
532 | static inline bool dsa_port_is_user(struct dsa_port *dp) |
533 | { |
534 | return dp->type == DSA_PORT_TYPE_USER; |
535 | } |
536 | |
537 | static inline bool dsa_port_is_unused(struct dsa_port *dp) |
538 | { |
539 | return dp->type == DSA_PORT_TYPE_UNUSED; |
540 | } |
541 | |
542 | static inline bool dsa_port_conduit_is_operational(struct dsa_port *dp) |
543 | { |
544 | return dsa_port_is_cpu(port: dp) && dp->conduit_admin_up && |
545 | dp->conduit_oper_up; |
546 | } |
547 | |
548 | static inline bool dsa_is_unused_port(struct dsa_switch *ds, int p) |
549 | { |
550 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_UNUSED; |
551 | } |
552 | |
553 | static inline bool dsa_is_cpu_port(struct dsa_switch *ds, int p) |
554 | { |
555 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_CPU; |
556 | } |
557 | |
558 | static inline bool dsa_is_dsa_port(struct dsa_switch *ds, int p) |
559 | { |
560 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_DSA; |
561 | } |
562 | |
563 | static inline bool dsa_is_user_port(struct dsa_switch *ds, int p) |
564 | { |
565 | return dsa_to_port(ds, p)->type == DSA_PORT_TYPE_USER; |
566 | } |
567 | |
568 | #define dsa_tree_for_each_user_port(_dp, _dst) \ |
569 | list_for_each_entry((_dp), &(_dst)->ports, list) \ |
570 | if (dsa_port_is_user((_dp))) |
571 | |
572 | #define dsa_tree_for_each_user_port_continue_reverse(_dp, _dst) \ |
573 | list_for_each_entry_continue_reverse((_dp), &(_dst)->ports, list) \ |
574 | if (dsa_port_is_user((_dp))) |
575 | |
576 | #define dsa_tree_for_each_cpu_port(_dp, _dst) \ |
577 | list_for_each_entry((_dp), &(_dst)->ports, list) \ |
578 | if (dsa_port_is_cpu((_dp))) |
579 | |
580 | #define dsa_switch_for_each_port(_dp, _ds) \ |
581 | list_for_each_entry((_dp), &(_ds)->dst->ports, list) \ |
582 | if ((_dp)->ds == (_ds)) |
583 | |
584 | #define dsa_switch_for_each_port_safe(_dp, _next, _ds) \ |
585 | list_for_each_entry_safe((_dp), (_next), &(_ds)->dst->ports, list) \ |
586 | if ((_dp)->ds == (_ds)) |
587 | |
588 | #define dsa_switch_for_each_port_continue_reverse(_dp, _ds) \ |
589 | list_for_each_entry_continue_reverse((_dp), &(_ds)->dst->ports, list) \ |
590 | if ((_dp)->ds == (_ds)) |
591 | |
592 | #define dsa_switch_for_each_available_port(_dp, _ds) \ |
593 | dsa_switch_for_each_port((_dp), (_ds)) \ |
594 | if (!dsa_port_is_unused((_dp))) |
595 | |
596 | #define dsa_switch_for_each_user_port(_dp, _ds) \ |
597 | dsa_switch_for_each_port((_dp), (_ds)) \ |
598 | if (dsa_port_is_user((_dp))) |
599 | |
600 | #define dsa_switch_for_each_user_port_continue_reverse(_dp, _ds) \ |
601 | dsa_switch_for_each_port_continue_reverse((_dp), (_ds)) \ |
602 | if (dsa_port_is_user((_dp))) |
603 | |
604 | #define dsa_switch_for_each_cpu_port(_dp, _ds) \ |
605 | dsa_switch_for_each_port((_dp), (_ds)) \ |
606 | if (dsa_port_is_cpu((_dp))) |
607 | |
608 | #define dsa_switch_for_each_cpu_port_continue_reverse(_dp, _ds) \ |
609 | dsa_switch_for_each_port_continue_reverse((_dp), (_ds)) \ |
610 | if (dsa_port_is_cpu((_dp))) |
611 | |
612 | static inline u32 dsa_user_ports(struct dsa_switch *ds) |
613 | { |
614 | struct dsa_port *dp; |
615 | u32 mask = 0; |
616 | |
617 | dsa_switch_for_each_user_port(dp, ds) |
618 | mask |= BIT(dp->index); |
619 | |
620 | return mask; |
621 | } |
622 | |
623 | static inline u32 dsa_cpu_ports(struct dsa_switch *ds) |
624 | { |
625 | struct dsa_port *cpu_dp; |
626 | u32 mask = 0; |
627 | |
628 | dsa_switch_for_each_cpu_port(cpu_dp, ds) |
629 | mask |= BIT(cpu_dp->index); |
630 | |
631 | return mask; |
632 | } |
633 | |
634 | /* Return the local port used to reach an arbitrary switch device */ |
635 | static inline unsigned int dsa_routing_port(struct dsa_switch *ds, int device) |
636 | { |
637 | struct dsa_switch_tree *dst = ds->dst; |
638 | struct dsa_link *dl; |
639 | |
640 | list_for_each_entry(dl, &dst->rtable, list) |
641 | if (dl->dp->ds == ds && dl->link_dp->ds->index == device) |
642 | return dl->dp->index; |
643 | |
644 | return ds->num_ports; |
645 | } |
646 | |
647 | /* Return the local port used to reach an arbitrary switch port */ |
648 | static inline unsigned int dsa_towards_port(struct dsa_switch *ds, int device, |
649 | int port) |
650 | { |
651 | if (device == ds->index) |
652 | return port; |
653 | else |
654 | return dsa_routing_port(ds, device); |
655 | } |
656 | |
657 | /* Return the local port used to reach the dedicated CPU port */ |
658 | static inline unsigned int dsa_upstream_port(struct dsa_switch *ds, int port) |
659 | { |
660 | const struct dsa_port *dp = dsa_to_port(ds, p: port); |
661 | const struct dsa_port *cpu_dp = dp->cpu_dp; |
662 | |
663 | if (!cpu_dp) |
664 | return port; |
665 | |
666 | return dsa_towards_port(ds, device: cpu_dp->ds->index, port: cpu_dp->index); |
667 | } |
668 | |
669 | /* Return true if this is the local port used to reach the CPU port */ |
670 | static inline bool dsa_is_upstream_port(struct dsa_switch *ds, int port) |
671 | { |
672 | if (dsa_is_unused_port(ds, p: port)) |
673 | return false; |
674 | |
675 | return port == dsa_upstream_port(ds, port); |
676 | } |
677 | |
678 | /* Return true if this is a DSA port leading away from the CPU */ |
679 | static inline bool dsa_is_downstream_port(struct dsa_switch *ds, int port) |
680 | { |
681 | return dsa_is_dsa_port(ds, p: port) && !dsa_is_upstream_port(ds, port); |
682 | } |
683 | |
684 | /* Return the local port used to reach the CPU port */ |
685 | static inline unsigned int dsa_switch_upstream_port(struct dsa_switch *ds) |
686 | { |
687 | struct dsa_port *dp; |
688 | |
689 | dsa_switch_for_each_available_port(dp, ds) { |
690 | return dsa_upstream_port(ds, port: dp->index); |
691 | } |
692 | |
693 | return ds->num_ports; |
694 | } |
695 | |
696 | /* Return true if @upstream_ds is an upstream switch of @downstream_ds, meaning |
697 | * that the routing port from @downstream_ds to @upstream_ds is also the port |
698 | * which @downstream_ds uses to reach its dedicated CPU. |
699 | */ |
700 | static inline bool dsa_switch_is_upstream_of(struct dsa_switch *upstream_ds, |
701 | struct dsa_switch *downstream_ds) |
702 | { |
703 | int routing_port; |
704 | |
705 | if (upstream_ds == downstream_ds) |
706 | return true; |
707 | |
708 | routing_port = dsa_routing_port(ds: downstream_ds, device: upstream_ds->index); |
709 | |
710 | return dsa_is_upstream_port(ds: downstream_ds, port: routing_port); |
711 | } |
712 | |
713 | static inline bool dsa_port_is_vlan_filtering(const struct dsa_port *dp) |
714 | { |
715 | const struct dsa_switch *ds = dp->ds; |
716 | |
717 | if (ds->vlan_filtering_is_global) |
718 | return ds->vlan_filtering; |
719 | else |
720 | return dp->vlan_filtering; |
721 | } |
722 | |
723 | static inline unsigned int dsa_port_lag_id_get(struct dsa_port *dp) |
724 | { |
725 | return dp->lag ? dp->lag->id : 0; |
726 | } |
727 | |
728 | static inline struct net_device *dsa_port_lag_dev_get(struct dsa_port *dp) |
729 | { |
730 | return dp->lag ? dp->lag->dev : NULL; |
731 | } |
732 | |
733 | static inline bool dsa_port_offloads_lag(struct dsa_port *dp, |
734 | const struct dsa_lag *lag) |
735 | { |
736 | return dsa_port_lag_dev_get(dp) == lag->dev; |
737 | } |
738 | |
739 | static inline struct net_device *dsa_port_to_conduit(const struct dsa_port *dp) |
740 | { |
741 | if (dp->cpu_port_in_lag) |
742 | return dsa_port_lag_dev_get(dp: dp->cpu_dp); |
743 | |
744 | return dp->cpu_dp->conduit; |
745 | } |
746 | |
747 | static inline |
748 | struct net_device *dsa_port_to_bridge_port(const struct dsa_port *dp) |
749 | { |
750 | if (!dp->bridge) |
751 | return NULL; |
752 | |
753 | if (dp->lag) |
754 | return dp->lag->dev; |
755 | else if (dp->hsr_dev) |
756 | return dp->hsr_dev; |
757 | |
758 | return dp->user; |
759 | } |
760 | |
761 | static inline struct net_device * |
762 | dsa_port_bridge_dev_get(const struct dsa_port *dp) |
763 | { |
764 | return dp->bridge ? dp->bridge->dev : NULL; |
765 | } |
766 | |
767 | static inline unsigned int dsa_port_bridge_num_get(struct dsa_port *dp) |
768 | { |
769 | return dp->bridge ? dp->bridge->num : 0; |
770 | } |
771 | |
772 | static inline bool dsa_port_bridge_same(const struct dsa_port *a, |
773 | const struct dsa_port *b) |
774 | { |
775 | struct net_device *br_a = dsa_port_bridge_dev_get(dp: a); |
776 | struct net_device *br_b = dsa_port_bridge_dev_get(dp: b); |
777 | |
778 | /* Standalone ports are not in the same bridge with one another */ |
779 | return (!br_a || !br_b) ? false : (br_a == br_b); |
780 | } |
781 | |
782 | static inline bool dsa_port_offloads_bridge_port(struct dsa_port *dp, |
783 | const struct net_device *dev) |
784 | { |
785 | return dsa_port_to_bridge_port(dp) == dev; |
786 | } |
787 | |
788 | static inline bool |
789 | dsa_port_offloads_bridge_dev(struct dsa_port *dp, |
790 | const struct net_device *bridge_dev) |
791 | { |
792 | /* DSA ports connected to a bridge, and event was emitted |
793 | * for the bridge. |
794 | */ |
795 | return dsa_port_bridge_dev_get(dp) == bridge_dev; |
796 | } |
797 | |
798 | static inline bool dsa_port_offloads_bridge(struct dsa_port *dp, |
799 | const struct dsa_bridge *bridge) |
800 | { |
801 | return dsa_port_bridge_dev_get(dp) == bridge->dev; |
802 | } |
803 | |
804 | /* Returns true if any port of this tree offloads the given net_device */ |
805 | static inline bool dsa_tree_offloads_bridge_port(struct dsa_switch_tree *dst, |
806 | const struct net_device *dev) |
807 | { |
808 | struct dsa_port *dp; |
809 | |
810 | list_for_each_entry(dp, &dst->ports, list) |
811 | if (dsa_port_offloads_bridge_port(dp, dev)) |
812 | return true; |
813 | |
814 | return false; |
815 | } |
816 | |
817 | /* Returns true if any port of this tree offloads the given bridge */ |
818 | static inline bool |
819 | dsa_tree_offloads_bridge_dev(struct dsa_switch_tree *dst, |
820 | const struct net_device *bridge_dev) |
821 | { |
822 | struct dsa_port *dp; |
823 | |
824 | list_for_each_entry(dp, &dst->ports, list) |
825 | if (dsa_port_offloads_bridge_dev(dp, bridge_dev)) |
826 | return true; |
827 | |
828 | return false; |
829 | } |
830 | |
831 | static inline bool dsa_port_tree_same(const struct dsa_port *a, |
832 | const struct dsa_port *b) |
833 | { |
834 | return a->ds->dst == b->ds->dst; |
835 | } |
836 | |
837 | typedef int dsa_fdb_dump_cb_t(const unsigned char *addr, u16 vid, |
838 | bool is_static, void *data); |
839 | struct dsa_switch_ops { |
840 | /* |
841 | * Tagging protocol helpers called for the CPU ports and DSA links. |
842 | * @get_tag_protocol retrieves the initial tagging protocol and is |
843 | * mandatory. Switches which can operate using multiple tagging |
844 | * protocols should implement @change_tag_protocol and report in |
845 | * @get_tag_protocol the tagger in current use. |
846 | */ |
847 | enum dsa_tag_protocol (*get_tag_protocol)(struct dsa_switch *ds, |
848 | int port, |
849 | enum dsa_tag_protocol mprot); |
850 | int (*change_tag_protocol)(struct dsa_switch *ds, |
851 | enum dsa_tag_protocol proto); |
852 | /* |
853 | * Method for switch drivers to connect to the tagging protocol driver |
854 | * in current use. The switch driver can provide handlers for certain |
855 | * types of packets for switch management. |
856 | */ |
857 | int (*connect_tag_protocol)(struct dsa_switch *ds, |
858 | enum dsa_tag_protocol proto); |
859 | |
860 | int (*port_change_conduit)(struct dsa_switch *ds, int port, |
861 | struct net_device *conduit, |
862 | struct netlink_ext_ack *extack); |
863 | |
864 | /* Optional switch-wide initialization and destruction methods */ |
865 | int (*setup)(struct dsa_switch *ds); |
866 | void (*teardown)(struct dsa_switch *ds); |
867 | |
868 | /* Per-port initialization and destruction methods. Mandatory if the |
869 | * driver registers devlink port regions, optional otherwise. |
870 | */ |
871 | int (*port_setup)(struct dsa_switch *ds, int port); |
872 | void (*port_teardown)(struct dsa_switch *ds, int port); |
873 | |
874 | u32 (*get_phy_flags)(struct dsa_switch *ds, int port); |
875 | |
876 | /* |
877 | * Access to the switch's PHY registers. |
878 | */ |
879 | int (*phy_read)(struct dsa_switch *ds, int port, int regnum); |
880 | int (*phy_write)(struct dsa_switch *ds, int port, |
881 | int regnum, u16 val); |
882 | |
883 | /* |
884 | * PHYLINK integration |
885 | */ |
886 | void (*phylink_get_caps)(struct dsa_switch *ds, int port, |
887 | struct phylink_config *config); |
888 | void (*phylink_fixed_state)(struct dsa_switch *ds, int port, |
889 | struct phylink_link_state *state); |
890 | /* |
891 | * Port statistics counters. |
892 | */ |
893 | void (*get_strings)(struct dsa_switch *ds, int port, |
894 | u32 stringset, uint8_t *data); |
895 | void (*get_ethtool_stats)(struct dsa_switch *ds, |
896 | int port, uint64_t *data); |
897 | int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); |
898 | void (*get_ethtool_phy_stats)(struct dsa_switch *ds, |
899 | int port, uint64_t *data); |
900 | void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, |
901 | struct ethtool_eth_phy_stats *phy_stats); |
902 | void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, |
903 | struct ethtool_eth_mac_stats *mac_stats); |
904 | void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, |
905 | struct ethtool_eth_ctrl_stats *ctrl_stats); |
906 | void (*get_rmon_stats)(struct dsa_switch *ds, int port, |
907 | struct ethtool_rmon_stats *rmon_stats, |
908 | const struct ethtool_rmon_hist_range **ranges); |
909 | void (*get_ts_stats)(struct dsa_switch *ds, int port, |
910 | struct ethtool_ts_stats *ts_stats); |
911 | void (*get_stats64)(struct dsa_switch *ds, int port, |
912 | struct rtnl_link_stats64 *s); |
913 | void (*get_pause_stats)(struct dsa_switch *ds, int port, |
914 | struct ethtool_pause_stats *pause_stats); |
915 | void (*self_test)(struct dsa_switch *ds, int port, |
916 | struct ethtool_test *etest, u64 *data); |
917 | |
918 | /* |
919 | * ethtool Wake-on-LAN |
920 | */ |
921 | void (*get_wol)(struct dsa_switch *ds, int port, |
922 | struct ethtool_wolinfo *w); |
923 | int (*set_wol)(struct dsa_switch *ds, int port, |
924 | struct ethtool_wolinfo *w); |
925 | |
926 | /* |
927 | * ethtool timestamp info |
928 | */ |
929 | int (*get_ts_info)(struct dsa_switch *ds, int port, |
930 | struct kernel_ethtool_ts_info *ts); |
931 | |
932 | /* |
933 | * ethtool MAC merge layer |
934 | */ |
935 | int (*get_mm)(struct dsa_switch *ds, int port, |
936 | struct ethtool_mm_state *state); |
937 | int (*set_mm)(struct dsa_switch *ds, int port, |
938 | struct ethtool_mm_cfg *cfg, |
939 | struct netlink_ext_ack *extack); |
940 | void (*get_mm_stats)(struct dsa_switch *ds, int port, |
941 | struct ethtool_mm_stats *stats); |
942 | |
943 | /* |
944 | * DCB ops |
945 | */ |
946 | int (*port_get_default_prio)(struct dsa_switch *ds, int port); |
947 | int (*port_set_default_prio)(struct dsa_switch *ds, int port, |
948 | u8 prio); |
949 | int (*port_get_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp); |
950 | int (*port_add_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, |
951 | u8 prio); |
952 | int (*port_del_dscp_prio)(struct dsa_switch *ds, int port, u8 dscp, |
953 | u8 prio); |
954 | int (*port_set_apptrust)(struct dsa_switch *ds, int port, |
955 | const u8 *sel, int nsel); |
956 | int (*port_get_apptrust)(struct dsa_switch *ds, int port, u8 *sel, |
957 | int *nsel); |
958 | |
959 | /* |
960 | * Suspend and resume |
961 | */ |
962 | int (*suspend)(struct dsa_switch *ds); |
963 | int (*resume)(struct dsa_switch *ds); |
964 | |
965 | /* |
966 | * Port enable/disable |
967 | */ |
968 | int (*port_enable)(struct dsa_switch *ds, int port, |
969 | struct phy_device *phy); |
970 | void (*port_disable)(struct dsa_switch *ds, int port); |
971 | |
972 | |
973 | /* |
974 | * Notification for MAC address changes on user ports. Drivers can |
975 | * currently only veto operations. They should not use the method to |
976 | * program the hardware, since the operation is not rolled back in case |
977 | * of other errors. |
978 | */ |
979 | int (*port_set_mac_address)(struct dsa_switch *ds, int port, |
980 | const unsigned char *addr); |
981 | |
982 | /* |
983 | * Compatibility between device trees defining multiple CPU ports and |
984 | * drivers which are not OK to use by default the numerically smallest |
985 | * CPU port of a switch for its local ports. This can return NULL, |
986 | * meaning "don't know/don't care". |
987 | */ |
988 | struct dsa_port *(*preferred_default_local_cpu_port)(struct dsa_switch *ds); |
989 | |
990 | /* |
991 | * Port's MAC EEE settings |
992 | */ |
993 | bool (*support_eee)(struct dsa_switch *ds, int port); |
994 | int (*set_mac_eee)(struct dsa_switch *ds, int port, |
995 | struct ethtool_keee *e); |
996 | |
997 | /* EEPROM access */ |
998 | int (*get_eeprom_len)(struct dsa_switch *ds); |
999 | int (*get_eeprom)(struct dsa_switch *ds, |
1000 | struct ethtool_eeprom *eeprom, u8 *data); |
1001 | int (*set_eeprom)(struct dsa_switch *ds, |
1002 | struct ethtool_eeprom *eeprom, u8 *data); |
1003 | |
1004 | /* |
1005 | * Register access. |
1006 | */ |
1007 | int (*get_regs_len)(struct dsa_switch *ds, int port); |
1008 | void (*get_regs)(struct dsa_switch *ds, int port, |
1009 | struct ethtool_regs *regs, void *p); |
1010 | |
1011 | /* |
1012 | * Upper device tracking. |
1013 | */ |
1014 | int (*port_prechangeupper)(struct dsa_switch *ds, int port, |
1015 | struct netdev_notifier_changeupper_info *info); |
1016 | |
1017 | /* |
1018 | * Bridge integration |
1019 | */ |
1020 | int (*set_ageing_time)(struct dsa_switch *ds, unsigned int msecs); |
1021 | int (*port_bridge_join)(struct dsa_switch *ds, int port, |
1022 | struct dsa_bridge bridge, |
1023 | bool *tx_fwd_offload, |
1024 | struct netlink_ext_ack *extack); |
1025 | void (*port_bridge_leave)(struct dsa_switch *ds, int port, |
1026 | struct dsa_bridge bridge); |
1027 | void (*port_stp_state_set)(struct dsa_switch *ds, int port, |
1028 | u8 state); |
1029 | int (*port_mst_state_set)(struct dsa_switch *ds, int port, |
1030 | const struct switchdev_mst_state *state); |
1031 | void (*port_fast_age)(struct dsa_switch *ds, int port); |
1032 | int (*port_vlan_fast_age)(struct dsa_switch *ds, int port, u16 vid); |
1033 | int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port, |
1034 | struct switchdev_brport_flags flags, |
1035 | struct netlink_ext_ack *extack); |
1036 | int (*port_bridge_flags)(struct dsa_switch *ds, int port, |
1037 | struct switchdev_brport_flags flags, |
1038 | struct netlink_ext_ack *extack); |
1039 | void (*port_set_host_flood)(struct dsa_switch *ds, int port, |
1040 | bool uc, bool mc); |
1041 | |
1042 | /* |
1043 | * VLAN support |
1044 | */ |
1045 | int (*port_vlan_filtering)(struct dsa_switch *ds, int port, |
1046 | bool vlan_filtering, |
1047 | struct netlink_ext_ack *extack); |
1048 | int (*port_vlan_add)(struct dsa_switch *ds, int port, |
1049 | const struct switchdev_obj_port_vlan *vlan, |
1050 | struct netlink_ext_ack *extack); |
1051 | int (*port_vlan_del)(struct dsa_switch *ds, int port, |
1052 | const struct switchdev_obj_port_vlan *vlan); |
1053 | int (*vlan_msti_set)(struct dsa_switch *ds, struct dsa_bridge bridge, |
1054 | const struct switchdev_vlan_msti *msti); |
1055 | |
1056 | /* |
1057 | * Forwarding database |
1058 | */ |
1059 | int (*port_fdb_add)(struct dsa_switch *ds, int port, |
1060 | const unsigned char *addr, u16 vid, |
1061 | struct dsa_db db); |
1062 | int (*port_fdb_del)(struct dsa_switch *ds, int port, |
1063 | const unsigned char *addr, u16 vid, |
1064 | struct dsa_db db); |
1065 | int (*port_fdb_dump)(struct dsa_switch *ds, int port, |
1066 | dsa_fdb_dump_cb_t *cb, void *data); |
1067 | int (*lag_fdb_add)(struct dsa_switch *ds, struct dsa_lag lag, |
1068 | const unsigned char *addr, u16 vid, |
1069 | struct dsa_db db); |
1070 | int (*lag_fdb_del)(struct dsa_switch *ds, struct dsa_lag lag, |
1071 | const unsigned char *addr, u16 vid, |
1072 | struct dsa_db db); |
1073 | |
1074 | /* |
1075 | * Multicast database |
1076 | */ |
1077 | int (*port_mdb_add)(struct dsa_switch *ds, int port, |
1078 | const struct switchdev_obj_port_mdb *mdb, |
1079 | struct dsa_db db); |
1080 | int (*port_mdb_del)(struct dsa_switch *ds, int port, |
1081 | const struct switchdev_obj_port_mdb *mdb, |
1082 | struct dsa_db db); |
1083 | /* |
1084 | * RXNFC |
1085 | */ |
1086 | int (*get_rxnfc)(struct dsa_switch *ds, int port, |
1087 | struct ethtool_rxnfc *nfc, u32 *rule_locs); |
1088 | int (*set_rxnfc)(struct dsa_switch *ds, int port, |
1089 | struct ethtool_rxnfc *nfc); |
1090 | |
1091 | /* |
1092 | * TC integration |
1093 | */ |
1094 | int (*cls_flower_add)(struct dsa_switch *ds, int port, |
1095 | struct flow_cls_offload *cls, bool ingress); |
1096 | int (*cls_flower_del)(struct dsa_switch *ds, int port, |
1097 | struct flow_cls_offload *cls, bool ingress); |
1098 | int (*cls_flower_stats)(struct dsa_switch *ds, int port, |
1099 | struct flow_cls_offload *cls, bool ingress); |
1100 | int (*port_mirror_add)(struct dsa_switch *ds, int port, |
1101 | struct dsa_mall_mirror_tc_entry *mirror, |
1102 | bool ingress, struct netlink_ext_ack *extack); |
1103 | void (*port_mirror_del)(struct dsa_switch *ds, int port, |
1104 | struct dsa_mall_mirror_tc_entry *mirror); |
1105 | int (*port_policer_add)(struct dsa_switch *ds, int port, |
1106 | struct dsa_mall_policer_tc_entry *policer); |
1107 | void (*port_policer_del)(struct dsa_switch *ds, int port); |
1108 | int (*port_setup_tc)(struct dsa_switch *ds, int port, |
1109 | enum tc_setup_type type, void *type_data); |
1110 | |
1111 | /* |
1112 | * Cross-chip operations |
1113 | */ |
1114 | int (*crosschip_bridge_join)(struct dsa_switch *ds, int tree_index, |
1115 | int sw_index, int port, |
1116 | struct dsa_bridge bridge, |
1117 | struct netlink_ext_ack *extack); |
1118 | void (*crosschip_bridge_leave)(struct dsa_switch *ds, int tree_index, |
1119 | int sw_index, int port, |
1120 | struct dsa_bridge bridge); |
1121 | int (*crosschip_lag_change)(struct dsa_switch *ds, int sw_index, |
1122 | int port); |
1123 | int (*crosschip_lag_join)(struct dsa_switch *ds, int sw_index, |
1124 | int port, struct dsa_lag lag, |
1125 | struct netdev_lag_upper_info *info, |
1126 | struct netlink_ext_ack *extack); |
1127 | int (*crosschip_lag_leave)(struct dsa_switch *ds, int sw_index, |
1128 | int port, struct dsa_lag lag); |
1129 | |
1130 | /* |
1131 | * PTP functionality |
1132 | */ |
1133 | int (*port_hwtstamp_get)(struct dsa_switch *ds, int port, |
1134 | struct kernel_hwtstamp_config *config); |
1135 | int (*port_hwtstamp_set)(struct dsa_switch *ds, int port, |
1136 | struct kernel_hwtstamp_config *config, |
1137 | struct netlink_ext_ack *extack); |
1138 | void (*port_txtstamp)(struct dsa_switch *ds, int port, |
1139 | struct sk_buff *skb); |
1140 | bool (*port_rxtstamp)(struct dsa_switch *ds, int port, |
1141 | struct sk_buff *skb, unsigned int type); |
1142 | |
1143 | /* Devlink parameters, etc */ |
1144 | int (*devlink_param_get)(struct dsa_switch *ds, u32 id, |
1145 | struct devlink_param_gset_ctx *ctx); |
1146 | int (*devlink_param_set)(struct dsa_switch *ds, u32 id, |
1147 | struct devlink_param_gset_ctx *ctx); |
1148 | int (*devlink_info_get)(struct dsa_switch *ds, |
1149 | struct devlink_info_req *req, |
1150 | struct netlink_ext_ack *extack); |
1151 | int (*devlink_sb_pool_get)(struct dsa_switch *ds, |
1152 | unsigned int sb_index, u16 pool_index, |
1153 | struct devlink_sb_pool_info *pool_info); |
1154 | int (*devlink_sb_pool_set)(struct dsa_switch *ds, unsigned int sb_index, |
1155 | u16 pool_index, u32 size, |
1156 | enum devlink_sb_threshold_type threshold_type, |
1157 | struct netlink_ext_ack *extack); |
1158 | int (*devlink_sb_port_pool_get)(struct dsa_switch *ds, int port, |
1159 | unsigned int sb_index, u16 pool_index, |
1160 | u32 *p_threshold); |
1161 | int (*devlink_sb_port_pool_set)(struct dsa_switch *ds, int port, |
1162 | unsigned int sb_index, u16 pool_index, |
1163 | u32 threshold, |
1164 | struct netlink_ext_ack *extack); |
1165 | int (*devlink_sb_tc_pool_bind_get)(struct dsa_switch *ds, int port, |
1166 | unsigned int sb_index, u16 tc_index, |
1167 | enum devlink_sb_pool_type pool_type, |
1168 | u16 *p_pool_index, u32 *p_threshold); |
1169 | int (*devlink_sb_tc_pool_bind_set)(struct dsa_switch *ds, int port, |
1170 | unsigned int sb_index, u16 tc_index, |
1171 | enum devlink_sb_pool_type pool_type, |
1172 | u16 pool_index, u32 threshold, |
1173 | struct netlink_ext_ack *extack); |
1174 | int (*devlink_sb_occ_snapshot)(struct dsa_switch *ds, |
1175 | unsigned int sb_index); |
1176 | int (*devlink_sb_occ_max_clear)(struct dsa_switch *ds, |
1177 | unsigned int sb_index); |
1178 | int (*devlink_sb_occ_port_pool_get)(struct dsa_switch *ds, int port, |
1179 | unsigned int sb_index, u16 pool_index, |
1180 | u32 *p_cur, u32 *p_max); |
1181 | int (*devlink_sb_occ_tc_port_bind_get)(struct dsa_switch *ds, int port, |
1182 | unsigned int sb_index, u16 tc_index, |
1183 | enum devlink_sb_pool_type pool_type, |
1184 | u32 *p_cur, u32 *p_max); |
1185 | |
1186 | /* |
1187 | * MTU change functionality. Switches can also adjust their MRU through |
1188 | * this method. By MTU, one understands the SDU (L2 payload) length. |
1189 | * If the switch needs to account for the DSA tag on the CPU port, this |
1190 | * method needs to do so privately. |
1191 | */ |
1192 | int (*port_change_mtu)(struct dsa_switch *ds, int port, |
1193 | int new_mtu); |
1194 | int (*port_max_mtu)(struct dsa_switch *ds, int port); |
1195 | |
1196 | /* |
1197 | * LAG integration |
1198 | */ |
1199 | int (*port_lag_change)(struct dsa_switch *ds, int port); |
1200 | int (*port_lag_join)(struct dsa_switch *ds, int port, |
1201 | struct dsa_lag lag, |
1202 | struct netdev_lag_upper_info *info, |
1203 | struct netlink_ext_ack *extack); |
1204 | int (*port_lag_leave)(struct dsa_switch *ds, int port, |
1205 | struct dsa_lag lag); |
1206 | |
1207 | /* |
1208 | * HSR integration |
1209 | */ |
1210 | int (*port_hsr_join)(struct dsa_switch *ds, int port, |
1211 | struct net_device *hsr, |
1212 | struct netlink_ext_ack *extack); |
1213 | int (*port_hsr_leave)(struct dsa_switch *ds, int port, |
1214 | struct net_device *hsr); |
1215 | |
1216 | /* |
1217 | * MRP integration |
1218 | */ |
1219 | int (*port_mrp_add)(struct dsa_switch *ds, int port, |
1220 | const struct switchdev_obj_mrp *mrp); |
1221 | int (*port_mrp_del)(struct dsa_switch *ds, int port, |
1222 | const struct switchdev_obj_mrp *mrp); |
1223 | int (*port_mrp_add_ring_role)(struct dsa_switch *ds, int port, |
1224 | const struct switchdev_obj_ring_role_mrp *mrp); |
1225 | int (*port_mrp_del_ring_role)(struct dsa_switch *ds, int port, |
1226 | const struct switchdev_obj_ring_role_mrp *mrp); |
1227 | |
1228 | /* |
1229 | * tag_8021q operations |
1230 | */ |
1231 | int (*tag_8021q_vlan_add)(struct dsa_switch *ds, int port, u16 vid, |
1232 | u16 flags); |
1233 | int (*tag_8021q_vlan_del)(struct dsa_switch *ds, int port, u16 vid); |
1234 | |
1235 | /* |
1236 | * DSA conduit tracking operations |
1237 | */ |
1238 | void (*conduit_state_change)(struct dsa_switch *ds, |
1239 | const struct net_device *conduit, |
1240 | bool operational); |
1241 | }; |
1242 | |
1243 | #define DSA_DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes) \ |
1244 | DEVLINK_PARAM_DRIVER(_id, _name, _type, _cmodes, \ |
1245 | dsa_devlink_param_get, dsa_devlink_param_set, NULL) |
1246 | |
1247 | int dsa_devlink_param_get(struct devlink *dl, u32 id, |
1248 | struct devlink_param_gset_ctx *ctx); |
1249 | int dsa_devlink_param_set(struct devlink *dl, u32 id, |
1250 | struct devlink_param_gset_ctx *ctx, |
1251 | struct netlink_ext_ack *extack); |
1252 | int dsa_devlink_params_register(struct dsa_switch *ds, |
1253 | const struct devlink_param *params, |
1254 | size_t params_count); |
1255 | void dsa_devlink_params_unregister(struct dsa_switch *ds, |
1256 | const struct devlink_param *params, |
1257 | size_t params_count); |
1258 | int dsa_devlink_resource_register(struct dsa_switch *ds, |
1259 | const char *resource_name, |
1260 | u64 resource_size, |
1261 | u64 resource_id, |
1262 | u64 parent_resource_id, |
1263 | const struct devlink_resource_size_params *size_params); |
1264 | |
1265 | void dsa_devlink_resources_unregister(struct dsa_switch *ds); |
1266 | |
1267 | void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds, |
1268 | u64 resource_id, |
1269 | devlink_resource_occ_get_t *occ_get, |
1270 | void *occ_get_priv); |
1271 | void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds, |
1272 | u64 resource_id); |
1273 | struct devlink_region * |
1274 | dsa_devlink_region_create(struct dsa_switch *ds, |
1275 | const struct devlink_region_ops *ops, |
1276 | u32 region_max_snapshots, u64 region_size); |
1277 | struct devlink_region * |
1278 | dsa_devlink_port_region_create(struct dsa_switch *ds, |
1279 | int port, |
1280 | const struct devlink_port_region_ops *ops, |
1281 | u32 region_max_snapshots, u64 region_size); |
1282 | void dsa_devlink_region_destroy(struct devlink_region *region); |
1283 | |
1284 | struct dsa_port *dsa_port_from_netdev(struct net_device *netdev); |
1285 | |
1286 | struct dsa_devlink_priv { |
1287 | struct dsa_switch *ds; |
1288 | }; |
1289 | |
1290 | static inline struct dsa_switch *dsa_devlink_to_ds(struct devlink *dl) |
1291 | { |
1292 | struct dsa_devlink_priv *dl_priv = devlink_priv(devlink: dl); |
1293 | |
1294 | return dl_priv->ds; |
1295 | } |
1296 | |
1297 | static inline |
1298 | struct dsa_switch *dsa_devlink_port_to_ds(struct devlink_port *port) |
1299 | { |
1300 | struct devlink *dl = port->devlink; |
1301 | struct dsa_devlink_priv *dl_priv = devlink_priv(devlink: dl); |
1302 | |
1303 | return dl_priv->ds; |
1304 | } |
1305 | |
1306 | static inline int dsa_devlink_port_to_port(struct devlink_port *port) |
1307 | { |
1308 | return port->index; |
1309 | } |
1310 | |
1311 | struct dsa_switch_driver { |
1312 | struct list_head list; |
1313 | const struct dsa_switch_ops *ops; |
1314 | }; |
1315 | |
1316 | bool dsa_fdb_present_in_other_db(struct dsa_switch *ds, int port, |
1317 | const unsigned char *addr, u16 vid, |
1318 | struct dsa_db db); |
1319 | bool dsa_mdb_present_in_other_db(struct dsa_switch *ds, int port, |
1320 | const struct switchdev_obj_port_mdb *mdb, |
1321 | struct dsa_db db); |
1322 | |
1323 | /* Keep inline for faster access in hot path */ |
1324 | static inline bool netdev_uses_dsa(const struct net_device *dev) |
1325 | { |
1326 | #if IS_ENABLED(CONFIG_NET_DSA) |
1327 | return dev->dsa_ptr && dev->dsa_ptr->rcv; |
1328 | #endif |
1329 | return false; |
1330 | } |
1331 | |
1332 | /* All DSA tags that push the EtherType to the right (basically all except tail |
1333 | * tags, which don't break dissection) can be treated the same from the |
1334 | * perspective of the flow dissector. |
1335 | * |
1336 | * We need to return: |
1337 | * - offset: the (B - A) difference between: |
1338 | * A. the position of the real EtherType and |
1339 | * B. the current skb->data (aka ETH_HLEN bytes into the frame, aka 2 bytes |
1340 | * after the normal EtherType was supposed to be) |
1341 | * The offset in bytes is exactly equal to the tagger overhead (and half of |
1342 | * that, in __be16 shorts). |
1343 | * |
1344 | * - proto: the value of the real EtherType. |
1345 | */ |
1346 | static inline void dsa_tag_generic_flow_dissect(const struct sk_buff *skb, |
1347 | __be16 *proto, int *offset) |
1348 | { |
1349 | #if IS_ENABLED(CONFIG_NET_DSA) |
1350 | const struct dsa_device_ops *ops = skb->dev->dsa_ptr->tag_ops; |
1351 | int tag_len = ops->needed_headroom; |
1352 | |
1353 | *offset = tag_len; |
1354 | *proto = ((__be16 *)skb->data)[(tag_len / 2) - 1]; |
1355 | #endif |
1356 | } |
1357 | |
1358 | void dsa_unregister_switch(struct dsa_switch *ds); |
1359 | int dsa_register_switch(struct dsa_switch *ds); |
1360 | void dsa_switch_shutdown(struct dsa_switch *ds); |
1361 | struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |
1362 | void dsa_flush_workqueue(void); |
1363 | #ifdef CONFIG_PM_SLEEP |
1364 | int dsa_switch_suspend(struct dsa_switch *ds); |
1365 | int dsa_switch_resume(struct dsa_switch *ds); |
1366 | #else |
1367 | static inline int dsa_switch_suspend(struct dsa_switch *ds) |
1368 | { |
1369 | return 0; |
1370 | } |
1371 | static inline int dsa_switch_resume(struct dsa_switch *ds) |
1372 | { |
1373 | return 0; |
1374 | } |
1375 | #endif /* CONFIG_PM_SLEEP */ |
1376 | |
1377 | #if IS_ENABLED(CONFIG_NET_DSA) |
1378 | bool dsa_user_dev_check(const struct net_device *dev); |
1379 | #else |
1380 | static inline bool dsa_user_dev_check(const struct net_device *dev) |
1381 | { |
1382 | return false; |
1383 | } |
1384 | #endif |
1385 | |
1386 | netdev_tx_t dsa_enqueue_skb(struct sk_buff *skb, struct net_device *dev); |
1387 | void dsa_port_phylink_mac_change(struct dsa_switch *ds, int port, bool up); |
1388 | bool dsa_supports_eee(struct dsa_switch *ds, int port); |
1389 | |
1390 | #endif |
1391 |
Definitions
- dsa_tag_protocol
- dsa_device_ops
- dsa_lag
- dsa_switch_tree
- dsa_lag_by_id
- dsa_lag_id
- dsa_port_mall_action_type
- dsa_mall_mirror_tc_entry
- dsa_mall_policer_tc_entry
- dsa_mall_tc_entry
- dsa_bridge
- dsa_port
- dsa_phylink_to_port
- dsa_link
- dsa_db_type
- dsa_db
- dsa_mac_addr
- dsa_vlan
- dsa_switch
- dsa_to_port
- dsa_port_is_dsa
- dsa_port_is_cpu
- dsa_port_is_user
- dsa_port_is_unused
- dsa_port_conduit_is_operational
- dsa_is_unused_port
- dsa_is_cpu_port
- dsa_is_dsa_port
- dsa_is_user_port
- dsa_user_ports
- dsa_cpu_ports
- dsa_routing_port
- dsa_towards_port
- dsa_upstream_port
- dsa_is_upstream_port
- dsa_is_downstream_port
- dsa_switch_upstream_port
- dsa_switch_is_upstream_of
- dsa_port_is_vlan_filtering
- dsa_port_lag_id_get
- dsa_port_lag_dev_get
- dsa_port_offloads_lag
- dsa_port_to_conduit
- dsa_port_to_bridge_port
- dsa_port_bridge_dev_get
- dsa_port_bridge_num_get
- dsa_port_bridge_same
- dsa_port_offloads_bridge_port
- dsa_port_offloads_bridge_dev
- dsa_port_offloads_bridge
- dsa_tree_offloads_bridge_port
- dsa_tree_offloads_bridge_dev
- dsa_port_tree_same
- dsa_switch_ops
- dsa_devlink_priv
- dsa_devlink_to_ds
- dsa_devlink_port_to_ds
- dsa_devlink_port_to_port
- dsa_switch_driver
- netdev_uses_dsa
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