1 | // SPDX-License-Identifier: (GPL-2.0 OR MIT) |
2 | /* Microsemi Ocelot Switch driver |
3 | * |
4 | * This contains glue logic between the switchdev driver operations and the |
5 | * mscc_ocelot_switch_lib. |
6 | * |
7 | * Copyright (c) 2017, 2019 Microsemi Corporation |
8 | * Copyright 2020-2021 NXP |
9 | */ |
10 | |
11 | #include <linux/dsa/ocelot.h> |
12 | #include <linux/if_bridge.h> |
13 | #include <linux/of_net.h> |
14 | #include <linux/phy/phy.h> |
15 | #include <net/pkt_cls.h> |
16 | #include "ocelot.h" |
17 | #include "ocelot_police.h" |
18 | #include "ocelot_vcap.h" |
19 | #include "ocelot_fdma.h" |
20 | |
21 | #define OCELOT_MAC_QUIRKS OCELOT_QUIRK_QSGMII_PORTS_MUST_BE_UP |
22 | |
23 | struct ocelot_dump_ctx { |
24 | struct net_device *dev; |
25 | struct sk_buff *skb; |
26 | struct netlink_callback *cb; |
27 | int idx; |
28 | }; |
29 | |
30 | static bool ocelot_netdevice_dev_check(const struct net_device *dev); |
31 | |
32 | static struct ocelot *devlink_port_to_ocelot(struct devlink_port *dlp) |
33 | { |
34 | return devlink_priv(devlink: dlp->devlink); |
35 | } |
36 | |
37 | static int devlink_port_to_port(struct devlink_port *dlp) |
38 | { |
39 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
40 | |
41 | return dlp - ocelot->devlink_ports; |
42 | } |
43 | |
44 | static int ocelot_devlink_sb_pool_get(struct devlink *dl, |
45 | unsigned int sb_index, u16 pool_index, |
46 | struct devlink_sb_pool_info *pool_info) |
47 | { |
48 | struct ocelot *ocelot = devlink_priv(devlink: dl); |
49 | |
50 | return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info); |
51 | } |
52 | |
53 | static int ocelot_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index, |
54 | u16 pool_index, u32 size, |
55 | enum devlink_sb_threshold_type threshold_type, |
56 | struct netlink_ext_ack *extack) |
57 | { |
58 | struct ocelot *ocelot = devlink_priv(devlink: dl); |
59 | |
60 | return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size, |
61 | threshold_type, extack); |
62 | } |
63 | |
64 | static int ocelot_devlink_sb_port_pool_get(struct devlink_port *dlp, |
65 | unsigned int sb_index, u16 pool_index, |
66 | u32 *p_threshold) |
67 | { |
68 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
69 | int port = devlink_port_to_port(dlp); |
70 | |
71 | return ocelot_sb_port_pool_get(ocelot, port, sb_index, pool_index, |
72 | p_threshold); |
73 | } |
74 | |
75 | static int ocelot_devlink_sb_port_pool_set(struct devlink_port *dlp, |
76 | unsigned int sb_index, u16 pool_index, |
77 | u32 threshold, |
78 | struct netlink_ext_ack *extack) |
79 | { |
80 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
81 | int port = devlink_port_to_port(dlp); |
82 | |
83 | return ocelot_sb_port_pool_set(ocelot, port, sb_index, pool_index, |
84 | threshold, extack); |
85 | } |
86 | |
87 | static int |
88 | ocelot_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp, |
89 | unsigned int sb_index, u16 tc_index, |
90 | enum devlink_sb_pool_type pool_type, |
91 | u16 *p_pool_index, u32 *p_threshold) |
92 | { |
93 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
94 | int port = devlink_port_to_port(dlp); |
95 | |
96 | return ocelot_sb_tc_pool_bind_get(ocelot, port, sb_index, tc_index, |
97 | pool_type, p_pool_index, |
98 | p_threshold); |
99 | } |
100 | |
101 | static int |
102 | ocelot_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp, |
103 | unsigned int sb_index, u16 tc_index, |
104 | enum devlink_sb_pool_type pool_type, |
105 | u16 pool_index, u32 threshold, |
106 | struct netlink_ext_ack *extack) |
107 | { |
108 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
109 | int port = devlink_port_to_port(dlp); |
110 | |
111 | return ocelot_sb_tc_pool_bind_set(ocelot, port, sb_index, tc_index, |
112 | pool_type, pool_index, threshold, |
113 | extack); |
114 | } |
115 | |
116 | static int ocelot_devlink_sb_occ_snapshot(struct devlink *dl, |
117 | unsigned int sb_index) |
118 | { |
119 | struct ocelot *ocelot = devlink_priv(devlink: dl); |
120 | |
121 | return ocelot_sb_occ_snapshot(ocelot, sb_index); |
122 | } |
123 | |
124 | static int ocelot_devlink_sb_occ_max_clear(struct devlink *dl, |
125 | unsigned int sb_index) |
126 | { |
127 | struct ocelot *ocelot = devlink_priv(devlink: dl); |
128 | |
129 | return ocelot_sb_occ_max_clear(ocelot, sb_index); |
130 | } |
131 | |
132 | static int ocelot_devlink_sb_occ_port_pool_get(struct devlink_port *dlp, |
133 | unsigned int sb_index, |
134 | u16 pool_index, u32 *p_cur, |
135 | u32 *p_max) |
136 | { |
137 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
138 | int port = devlink_port_to_port(dlp); |
139 | |
140 | return ocelot_sb_occ_port_pool_get(ocelot, port, sb_index, pool_index, |
141 | p_cur, p_max); |
142 | } |
143 | |
144 | static int |
145 | ocelot_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp, |
146 | unsigned int sb_index, u16 tc_index, |
147 | enum devlink_sb_pool_type pool_type, |
148 | u32 *p_cur, u32 *p_max) |
149 | { |
150 | struct ocelot *ocelot = devlink_port_to_ocelot(dlp); |
151 | int port = devlink_port_to_port(dlp); |
152 | |
153 | return ocelot_sb_occ_tc_port_bind_get(ocelot, port, sb_index, |
154 | tc_index, pool_type, |
155 | p_cur, p_max); |
156 | } |
157 | |
158 | const struct devlink_ops ocelot_devlink_ops = { |
159 | .sb_pool_get = ocelot_devlink_sb_pool_get, |
160 | .sb_pool_set = ocelot_devlink_sb_pool_set, |
161 | .sb_port_pool_get = ocelot_devlink_sb_port_pool_get, |
162 | .sb_port_pool_set = ocelot_devlink_sb_port_pool_set, |
163 | .sb_tc_pool_bind_get = ocelot_devlink_sb_tc_pool_bind_get, |
164 | .sb_tc_pool_bind_set = ocelot_devlink_sb_tc_pool_bind_set, |
165 | .sb_occ_snapshot = ocelot_devlink_sb_occ_snapshot, |
166 | .sb_occ_max_clear = ocelot_devlink_sb_occ_max_clear, |
167 | .sb_occ_port_pool_get = ocelot_devlink_sb_occ_port_pool_get, |
168 | .sb_occ_tc_port_bind_get = ocelot_devlink_sb_occ_tc_port_bind_get, |
169 | }; |
170 | |
171 | int ocelot_port_devlink_init(struct ocelot *ocelot, int port, |
172 | enum devlink_port_flavour flavour) |
173 | { |
174 | struct devlink_port *dlp = &ocelot->devlink_ports[port]; |
175 | int id_len = sizeof(ocelot->base_mac); |
176 | struct devlink *dl = ocelot->devlink; |
177 | struct devlink_port_attrs attrs = {}; |
178 | |
179 | memset(dlp, 0, sizeof(*dlp)); |
180 | memcpy(attrs.switch_id.id, &ocelot->base_mac, id_len); |
181 | attrs.switch_id.id_len = id_len; |
182 | attrs.phys.port_number = port; |
183 | attrs.flavour = flavour; |
184 | |
185 | devlink_port_attrs_set(devlink_port: dlp, devlink_port_attrs: &attrs); |
186 | |
187 | return devlink_port_register(devlink: dl, devlink_port: dlp, port_index: port); |
188 | } |
189 | |
190 | void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port) |
191 | { |
192 | struct devlink_port *dlp = &ocelot->devlink_ports[port]; |
193 | |
194 | devlink_port_unregister(devlink_port: dlp); |
195 | } |
196 | |
197 | int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv, |
198 | struct flow_cls_offload *f, |
199 | bool ingress) |
200 | { |
201 | struct ocelot *ocelot = priv->port.ocelot; |
202 | int port = priv->port.index; |
203 | |
204 | if (!ingress) |
205 | return -EOPNOTSUPP; |
206 | |
207 | switch (f->command) { |
208 | case FLOW_CLS_REPLACE: |
209 | return ocelot_cls_flower_replace(ocelot, port, f, ingress); |
210 | case FLOW_CLS_DESTROY: |
211 | return ocelot_cls_flower_destroy(ocelot, port, f, ingress); |
212 | case FLOW_CLS_STATS: |
213 | return ocelot_cls_flower_stats(ocelot, port, f, ingress); |
214 | default: |
215 | return -EOPNOTSUPP; |
216 | } |
217 | } |
218 | |
219 | static int ocelot_setup_tc_cls_matchall_police(struct ocelot_port_private *priv, |
220 | struct tc_cls_matchall_offload *f, |
221 | bool ingress, |
222 | struct netlink_ext_ack *extack) |
223 | { |
224 | struct flow_action_entry *action = &f->rule->action.entries[0]; |
225 | struct ocelot *ocelot = priv->port.ocelot; |
226 | struct ocelot_policer pol = { 0 }; |
227 | int port = priv->port.index; |
228 | int err; |
229 | |
230 | if (!ingress) { |
231 | NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported" ); |
232 | return -EOPNOTSUPP; |
233 | } |
234 | |
235 | if (priv->tc.police_id && priv->tc.police_id != f->cookie) { |
236 | NL_SET_ERR_MSG_MOD(extack, |
237 | "Only one policer per port is supported" ); |
238 | return -EEXIST; |
239 | } |
240 | |
241 | err = ocelot_policer_validate(action: &f->rule->action, a: action, extack); |
242 | if (err) |
243 | return err; |
244 | |
245 | pol.rate = (u32)div_u64(dividend: action->police.rate_bytes_ps, divisor: 1000) * 8; |
246 | pol.burst = action->police.burst; |
247 | |
248 | err = ocelot_port_policer_add(ocelot, port, pol: &pol); |
249 | if (err) { |
250 | NL_SET_ERR_MSG_MOD(extack, "Could not add policer" ); |
251 | return err; |
252 | } |
253 | |
254 | priv->tc.police_id = f->cookie; |
255 | priv->tc.offload_cnt++; |
256 | |
257 | return 0; |
258 | } |
259 | |
260 | static int ocelot_setup_tc_cls_matchall_mirred(struct ocelot_port_private *priv, |
261 | struct tc_cls_matchall_offload *f, |
262 | bool ingress, |
263 | struct netlink_ext_ack *extack) |
264 | { |
265 | struct flow_action *action = &f->rule->action; |
266 | struct ocelot *ocelot = priv->port.ocelot; |
267 | struct ocelot_port_private *other_priv; |
268 | const struct flow_action_entry *a; |
269 | int err; |
270 | |
271 | if (f->common.protocol != htons(ETH_P_ALL)) |
272 | return -EOPNOTSUPP; |
273 | |
274 | if (!flow_action_basic_hw_stats_check(action, extack)) |
275 | return -EOPNOTSUPP; |
276 | |
277 | a = &action->entries[0]; |
278 | if (!a->dev) |
279 | return -EINVAL; |
280 | |
281 | if (!ocelot_netdevice_dev_check(dev: a->dev)) { |
282 | NL_SET_ERR_MSG_MOD(extack, |
283 | "Destination not an ocelot port" ); |
284 | return -EOPNOTSUPP; |
285 | } |
286 | |
287 | other_priv = netdev_priv(dev: a->dev); |
288 | |
289 | err = ocelot_port_mirror_add(ocelot, from: priv->port.index, |
290 | to: other_priv->port.index, ingress, extack); |
291 | if (err) |
292 | return err; |
293 | |
294 | if (ingress) |
295 | priv->tc.ingress_mirred_id = f->cookie; |
296 | else |
297 | priv->tc.egress_mirred_id = f->cookie; |
298 | priv->tc.offload_cnt++; |
299 | |
300 | return 0; |
301 | } |
302 | |
303 | static int ocelot_del_tc_cls_matchall_police(struct ocelot_port_private *priv, |
304 | struct netlink_ext_ack *extack) |
305 | { |
306 | struct ocelot *ocelot = priv->port.ocelot; |
307 | int port = priv->port.index; |
308 | int err; |
309 | |
310 | err = ocelot_port_policer_del(ocelot, port); |
311 | if (err) { |
312 | NL_SET_ERR_MSG_MOD(extack, |
313 | "Could not delete policer" ); |
314 | return err; |
315 | } |
316 | |
317 | priv->tc.police_id = 0; |
318 | priv->tc.offload_cnt--; |
319 | |
320 | return 0; |
321 | } |
322 | |
323 | static int ocelot_del_tc_cls_matchall_mirred(struct ocelot_port_private *priv, |
324 | bool ingress, |
325 | struct netlink_ext_ack *extack) |
326 | { |
327 | struct ocelot *ocelot = priv->port.ocelot; |
328 | int port = priv->port.index; |
329 | |
330 | ocelot_port_mirror_del(ocelot, from: port, ingress); |
331 | |
332 | if (ingress) |
333 | priv->tc.ingress_mirred_id = 0; |
334 | else |
335 | priv->tc.egress_mirred_id = 0; |
336 | priv->tc.offload_cnt--; |
337 | |
338 | return 0; |
339 | } |
340 | |
341 | static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv, |
342 | struct tc_cls_matchall_offload *f, |
343 | bool ingress) |
344 | { |
345 | struct netlink_ext_ack *extack = f->common.extack; |
346 | struct flow_action_entry *action; |
347 | |
348 | switch (f->command) { |
349 | case TC_CLSMATCHALL_REPLACE: |
350 | if (!flow_offload_has_one_action(action: &f->rule->action)) { |
351 | NL_SET_ERR_MSG_MOD(extack, |
352 | "Only one action is supported" ); |
353 | return -EOPNOTSUPP; |
354 | } |
355 | |
356 | if (priv->tc.block_shared) { |
357 | NL_SET_ERR_MSG_MOD(extack, |
358 | "Matchall offloads not supported on shared blocks" ); |
359 | return -EOPNOTSUPP; |
360 | } |
361 | |
362 | action = &f->rule->action.entries[0]; |
363 | |
364 | switch (action->id) { |
365 | case FLOW_ACTION_POLICE: |
366 | return ocelot_setup_tc_cls_matchall_police(priv, f, |
367 | ingress, |
368 | extack); |
369 | break; |
370 | case FLOW_ACTION_MIRRED: |
371 | return ocelot_setup_tc_cls_matchall_mirred(priv, f, |
372 | ingress, |
373 | extack); |
374 | default: |
375 | NL_SET_ERR_MSG_MOD(extack, "Unsupported action" ); |
376 | return -EOPNOTSUPP; |
377 | } |
378 | |
379 | break; |
380 | case TC_CLSMATCHALL_DESTROY: |
381 | action = &f->rule->action.entries[0]; |
382 | |
383 | if (f->cookie == priv->tc.police_id) |
384 | return ocelot_del_tc_cls_matchall_police(priv, extack); |
385 | else if (f->cookie == priv->tc.ingress_mirred_id || |
386 | f->cookie == priv->tc.egress_mirred_id) |
387 | return ocelot_del_tc_cls_matchall_mirred(priv, ingress, |
388 | extack); |
389 | else |
390 | return -ENOENT; |
391 | |
392 | break; |
393 | case TC_CLSMATCHALL_STATS: |
394 | default: |
395 | return -EOPNOTSUPP; |
396 | } |
397 | } |
398 | |
399 | static int ocelot_setup_tc_block_cb(enum tc_setup_type type, |
400 | void *type_data, |
401 | void *cb_priv, bool ingress) |
402 | { |
403 | struct ocelot_port_private *priv = cb_priv; |
404 | |
405 | if (!tc_cls_can_offload_and_chain0(dev: priv->dev, common: type_data)) |
406 | return -EOPNOTSUPP; |
407 | |
408 | switch (type) { |
409 | case TC_SETUP_CLSMATCHALL: |
410 | return ocelot_setup_tc_cls_matchall(priv, f: type_data, ingress); |
411 | case TC_SETUP_CLSFLOWER: |
412 | return ocelot_setup_tc_cls_flower(priv, f: type_data, ingress); |
413 | default: |
414 | return -EOPNOTSUPP; |
415 | } |
416 | } |
417 | |
418 | static int ocelot_setup_tc_block_cb_ig(enum tc_setup_type type, |
419 | void *type_data, |
420 | void *cb_priv) |
421 | { |
422 | return ocelot_setup_tc_block_cb(type, type_data, |
423 | cb_priv, ingress: true); |
424 | } |
425 | |
426 | static int ocelot_setup_tc_block_cb_eg(enum tc_setup_type type, |
427 | void *type_data, |
428 | void *cb_priv) |
429 | { |
430 | return ocelot_setup_tc_block_cb(type, type_data, |
431 | cb_priv, ingress: false); |
432 | } |
433 | |
434 | static LIST_HEAD(ocelot_block_cb_list); |
435 | |
436 | static int ocelot_setup_tc_block(struct ocelot_port_private *priv, |
437 | struct flow_block_offload *f) |
438 | { |
439 | struct flow_block_cb *block_cb; |
440 | flow_setup_cb_t *cb; |
441 | |
442 | if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) { |
443 | cb = ocelot_setup_tc_block_cb_ig; |
444 | priv->tc.block_shared = f->block_shared; |
445 | } else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) { |
446 | cb = ocelot_setup_tc_block_cb_eg; |
447 | } else { |
448 | return -EOPNOTSUPP; |
449 | } |
450 | |
451 | f->driver_block_list = &ocelot_block_cb_list; |
452 | |
453 | switch (f->command) { |
454 | case FLOW_BLOCK_BIND: |
455 | if (flow_block_cb_is_busy(cb, cb_ident: priv, driver_block_list: &ocelot_block_cb_list)) |
456 | return -EBUSY; |
457 | |
458 | block_cb = flow_block_cb_alloc(cb, cb_ident: priv, cb_priv: priv, NULL); |
459 | if (IS_ERR(ptr: block_cb)) |
460 | return PTR_ERR(ptr: block_cb); |
461 | |
462 | flow_block_cb_add(block_cb, offload: f); |
463 | list_add_tail(new: &block_cb->driver_list, head: f->driver_block_list); |
464 | return 0; |
465 | case FLOW_BLOCK_UNBIND: |
466 | block_cb = flow_block_cb_lookup(block: f->block, cb, cb_ident: priv); |
467 | if (!block_cb) |
468 | return -ENOENT; |
469 | |
470 | flow_block_cb_remove(block_cb, offload: f); |
471 | list_del(entry: &block_cb->driver_list); |
472 | return 0; |
473 | default: |
474 | return -EOPNOTSUPP; |
475 | } |
476 | } |
477 | |
478 | static int ocelot_setup_tc(struct net_device *dev, enum tc_setup_type type, |
479 | void *type_data) |
480 | { |
481 | struct ocelot_port_private *priv = netdev_priv(dev); |
482 | |
483 | switch (type) { |
484 | case TC_SETUP_BLOCK: |
485 | return ocelot_setup_tc_block(priv, f: type_data); |
486 | default: |
487 | return -EOPNOTSUPP; |
488 | } |
489 | return 0; |
490 | } |
491 | |
492 | static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid, |
493 | bool untagged) |
494 | { |
495 | struct ocelot_port_private *priv = netdev_priv(dev); |
496 | struct ocelot_port *ocelot_port = &priv->port; |
497 | struct ocelot *ocelot = ocelot_port->ocelot; |
498 | int port = priv->port.index; |
499 | int ret; |
500 | |
501 | ret = ocelot_vlan_add(ocelot, port, vid, pvid, untagged); |
502 | if (ret) |
503 | return ret; |
504 | |
505 | /* Add the port MAC address to with the right VLAN information */ |
506 | ocelot_mact_learn(ocelot, PGID_CPU, mac: dev->dev_addr, vid, |
507 | type: ENTRYTYPE_LOCKED); |
508 | |
509 | return 0; |
510 | } |
511 | |
512 | static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid) |
513 | { |
514 | struct ocelot_port_private *priv = netdev_priv(dev); |
515 | struct ocelot *ocelot = priv->port.ocelot; |
516 | int port = priv->port.index; |
517 | int ret; |
518 | |
519 | /* 8021q removes VID 0 on module unload for all interfaces |
520 | * with VLAN filtering feature. We need to keep it to receive |
521 | * untagged traffic. |
522 | */ |
523 | if (vid == OCELOT_STANDALONE_PVID) |
524 | return 0; |
525 | |
526 | ret = ocelot_vlan_del(ocelot, port, vid); |
527 | if (ret) |
528 | return ret; |
529 | |
530 | /* Del the port MAC address to with the right VLAN information */ |
531 | ocelot_mact_forget(ocelot, mac: dev->dev_addr, vid); |
532 | |
533 | return 0; |
534 | } |
535 | |
536 | static int ocelot_port_open(struct net_device *dev) |
537 | { |
538 | struct ocelot_port_private *priv = netdev_priv(dev); |
539 | |
540 | phylink_start(priv->phylink); |
541 | |
542 | return 0; |
543 | } |
544 | |
545 | static int ocelot_port_stop(struct net_device *dev) |
546 | { |
547 | struct ocelot_port_private *priv = netdev_priv(dev); |
548 | |
549 | phylink_stop(priv->phylink); |
550 | |
551 | return 0; |
552 | } |
553 | |
554 | static netdev_tx_t ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev) |
555 | { |
556 | struct ocelot_port_private *priv = netdev_priv(dev); |
557 | struct ocelot_port *ocelot_port = &priv->port; |
558 | struct ocelot *ocelot = ocelot_port->ocelot; |
559 | int port = priv->port.index; |
560 | u32 rew_op = 0; |
561 | |
562 | if (!static_branch_unlikely(&ocelot_fdma_enabled) && |
563 | !ocelot_can_inject(ocelot, grp: 0)) |
564 | return NETDEV_TX_BUSY; |
565 | |
566 | /* Check if timestamping is needed */ |
567 | if (ocelot->ptp && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) { |
568 | struct sk_buff *clone = NULL; |
569 | |
570 | if (ocelot_port_txtstamp_request(ocelot, port, skb, clone: &clone)) { |
571 | kfree_skb(skb); |
572 | return NETDEV_TX_OK; |
573 | } |
574 | |
575 | if (clone) |
576 | OCELOT_SKB_CB(skb)->clone = clone; |
577 | |
578 | rew_op = ocelot_ptp_rew_op(skb); |
579 | } |
580 | |
581 | if (static_branch_unlikely(&ocelot_fdma_enabled)) { |
582 | ocelot_fdma_inject_frame(fdma: ocelot, port, rew_op, skb, dev); |
583 | } else { |
584 | ocelot_port_inject_frame(ocelot, port, grp: 0, rew_op, skb); |
585 | |
586 | consume_skb(skb); |
587 | } |
588 | |
589 | return NETDEV_TX_OK; |
590 | } |
591 | |
592 | enum ocelot_action_type { |
593 | OCELOT_MACT_LEARN, |
594 | OCELOT_MACT_FORGET, |
595 | }; |
596 | |
597 | struct ocelot_mact_work_ctx { |
598 | struct work_struct work; |
599 | struct ocelot *ocelot; |
600 | enum ocelot_action_type type; |
601 | union { |
602 | /* OCELOT_MACT_LEARN */ |
603 | struct { |
604 | unsigned char addr[ETH_ALEN]; |
605 | u16 vid; |
606 | enum macaccess_entry_type entry_type; |
607 | int pgid; |
608 | } learn; |
609 | /* OCELOT_MACT_FORGET */ |
610 | struct { |
611 | unsigned char addr[ETH_ALEN]; |
612 | u16 vid; |
613 | } forget; |
614 | }; |
615 | }; |
616 | |
617 | #define ocelot_work_to_ctx(x) \ |
618 | container_of((x), struct ocelot_mact_work_ctx, work) |
619 | |
620 | static void ocelot_mact_work(struct work_struct *work) |
621 | { |
622 | struct ocelot_mact_work_ctx *w = ocelot_work_to_ctx(work); |
623 | struct ocelot *ocelot = w->ocelot; |
624 | |
625 | switch (w->type) { |
626 | case OCELOT_MACT_LEARN: |
627 | ocelot_mact_learn(ocelot, port: w->learn.pgid, mac: w->learn.addr, |
628 | vid: w->learn.vid, type: w->learn.entry_type); |
629 | break; |
630 | case OCELOT_MACT_FORGET: |
631 | ocelot_mact_forget(ocelot, mac: w->forget.addr, vid: w->forget.vid); |
632 | break; |
633 | default: |
634 | break; |
635 | } |
636 | |
637 | kfree(objp: w); |
638 | } |
639 | |
640 | static int ocelot_enqueue_mact_action(struct ocelot *ocelot, |
641 | const struct ocelot_mact_work_ctx *ctx) |
642 | { |
643 | struct ocelot_mact_work_ctx *w = kmemdup(p: ctx, size: sizeof(*w), GFP_ATOMIC); |
644 | |
645 | if (!w) |
646 | return -ENOMEM; |
647 | |
648 | w->ocelot = ocelot; |
649 | INIT_WORK(&w->work, ocelot_mact_work); |
650 | queue_work(wq: ocelot->owq, work: &w->work); |
651 | |
652 | return 0; |
653 | } |
654 | |
655 | static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr) |
656 | { |
657 | struct ocelot_port_private *priv = netdev_priv(dev); |
658 | struct ocelot_port *ocelot_port = &priv->port; |
659 | struct ocelot *ocelot = ocelot_port->ocelot; |
660 | struct ocelot_mact_work_ctx w; |
661 | |
662 | ether_addr_copy(dst: w.forget.addr, src: addr); |
663 | w.forget.vid = OCELOT_STANDALONE_PVID; |
664 | w.type = OCELOT_MACT_FORGET; |
665 | |
666 | return ocelot_enqueue_mact_action(ocelot, ctx: &w); |
667 | } |
668 | |
669 | static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr) |
670 | { |
671 | struct ocelot_port_private *priv = netdev_priv(dev); |
672 | struct ocelot_port *ocelot_port = &priv->port; |
673 | struct ocelot *ocelot = ocelot_port->ocelot; |
674 | struct ocelot_mact_work_ctx w; |
675 | |
676 | ether_addr_copy(dst: w.learn.addr, src: addr); |
677 | w.learn.vid = OCELOT_STANDALONE_PVID; |
678 | w.learn.pgid = PGID_CPU; |
679 | w.learn.entry_type = ENTRYTYPE_LOCKED; |
680 | w.type = OCELOT_MACT_LEARN; |
681 | |
682 | return ocelot_enqueue_mact_action(ocelot, ctx: &w); |
683 | } |
684 | |
685 | static void ocelot_set_rx_mode(struct net_device *dev) |
686 | { |
687 | struct ocelot_port_private *priv = netdev_priv(dev); |
688 | struct ocelot *ocelot = priv->port.ocelot; |
689 | u32 val; |
690 | int i; |
691 | |
692 | /* This doesn't handle promiscuous mode because the bridge core is |
693 | * setting IFF_PROMISC on all slave interfaces and all frames would be |
694 | * forwarded to the CPU port. |
695 | */ |
696 | val = GENMASK(ocelot->num_phys_ports - 1, 0); |
697 | for_each_nonreserved_multicast_dest_pgid(ocelot, i) |
698 | ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i); |
699 | |
700 | __dev_mc_sync(dev, sync: ocelot_mc_sync, unsync: ocelot_mc_unsync); |
701 | } |
702 | |
703 | static int ocelot_port_set_mac_address(struct net_device *dev, void *p) |
704 | { |
705 | struct ocelot_port_private *priv = netdev_priv(dev); |
706 | struct ocelot_port *ocelot_port = &priv->port; |
707 | struct ocelot *ocelot = ocelot_port->ocelot; |
708 | const struct sockaddr *addr = p; |
709 | |
710 | /* Learn the new net device MAC address in the mac table. */ |
711 | ocelot_mact_learn(ocelot, PGID_CPU, mac: addr->sa_data, |
712 | OCELOT_STANDALONE_PVID, type: ENTRYTYPE_LOCKED); |
713 | /* Then forget the previous one. */ |
714 | ocelot_mact_forget(ocelot, mac: dev->dev_addr, OCELOT_STANDALONE_PVID); |
715 | |
716 | eth_hw_addr_set(dev, addr: addr->sa_data); |
717 | return 0; |
718 | } |
719 | |
720 | static void ocelot_get_stats64(struct net_device *dev, |
721 | struct rtnl_link_stats64 *stats) |
722 | { |
723 | struct ocelot_port_private *priv = netdev_priv(dev); |
724 | struct ocelot *ocelot = priv->port.ocelot; |
725 | int port = priv->port.index; |
726 | |
727 | return ocelot_port_get_stats64(ocelot, port, stats); |
728 | } |
729 | |
730 | static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], |
731 | struct net_device *dev, |
732 | const unsigned char *addr, |
733 | u16 vid, u16 flags, |
734 | struct netlink_ext_ack *extack) |
735 | { |
736 | struct ocelot_port_private *priv = netdev_priv(dev); |
737 | struct ocelot_port *ocelot_port = &priv->port; |
738 | struct ocelot *ocelot = ocelot_port->ocelot; |
739 | int port = priv->port.index; |
740 | |
741 | return ocelot_fdb_add(ocelot, port, addr, vid, bridge: ocelot_port->bridge); |
742 | } |
743 | |
744 | static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], |
745 | struct net_device *dev, |
746 | const unsigned char *addr, u16 vid, |
747 | struct netlink_ext_ack *extack) |
748 | { |
749 | struct ocelot_port_private *priv = netdev_priv(dev); |
750 | struct ocelot_port *ocelot_port = &priv->port; |
751 | struct ocelot *ocelot = ocelot_port->ocelot; |
752 | int port = priv->port.index; |
753 | |
754 | return ocelot_fdb_del(ocelot, port, addr, vid, bridge: ocelot_port->bridge); |
755 | } |
756 | |
757 | static int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid, |
758 | bool is_static, void *data) |
759 | { |
760 | struct ocelot_dump_ctx *dump = data; |
761 | u32 portid = NETLINK_CB(dump->cb->skb).portid; |
762 | u32 seq = dump->cb->nlh->nlmsg_seq; |
763 | struct nlmsghdr *nlh; |
764 | struct ndmsg *ndm; |
765 | |
766 | if (dump->idx < dump->cb->args[2]) |
767 | goto skip; |
768 | |
769 | nlh = nlmsg_put(skb: dump->skb, portid, seq, RTM_NEWNEIGH, |
770 | payload: sizeof(*ndm), NLM_F_MULTI); |
771 | if (!nlh) |
772 | return -EMSGSIZE; |
773 | |
774 | ndm = nlmsg_data(nlh); |
775 | ndm->ndm_family = AF_BRIDGE; |
776 | ndm->ndm_pad1 = 0; |
777 | ndm->ndm_pad2 = 0; |
778 | ndm->ndm_flags = NTF_SELF; |
779 | ndm->ndm_type = 0; |
780 | ndm->ndm_ifindex = dump->dev->ifindex; |
781 | ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; |
782 | |
783 | if (nla_put(skb: dump->skb, attrtype: NDA_LLADDR, ETH_ALEN, data: addr)) |
784 | goto nla_put_failure; |
785 | |
786 | if (vid && nla_put_u16(skb: dump->skb, attrtype: NDA_VLAN, value: vid)) |
787 | goto nla_put_failure; |
788 | |
789 | nlmsg_end(skb: dump->skb, nlh); |
790 | |
791 | skip: |
792 | dump->idx++; |
793 | return 0; |
794 | |
795 | nla_put_failure: |
796 | nlmsg_cancel(skb: dump->skb, nlh); |
797 | return -EMSGSIZE; |
798 | } |
799 | |
800 | static int ocelot_port_fdb_dump(struct sk_buff *skb, |
801 | struct netlink_callback *cb, |
802 | struct net_device *dev, |
803 | struct net_device *filter_dev, int *idx) |
804 | { |
805 | struct ocelot_port_private *priv = netdev_priv(dev); |
806 | struct ocelot *ocelot = priv->port.ocelot; |
807 | struct ocelot_dump_ctx dump = { |
808 | .dev = dev, |
809 | .skb = skb, |
810 | .cb = cb, |
811 | .idx = *idx, |
812 | }; |
813 | int port = priv->port.index; |
814 | int ret; |
815 | |
816 | ret = ocelot_fdb_dump(ocelot, port, cb: ocelot_port_fdb_do_dump, data: &dump); |
817 | |
818 | *idx = dump.idx; |
819 | |
820 | return ret; |
821 | } |
822 | |
823 | static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto, |
824 | u16 vid) |
825 | { |
826 | return ocelot_vlan_vid_add(dev, vid, pvid: false, untagged: false); |
827 | } |
828 | |
829 | static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, |
830 | u16 vid) |
831 | { |
832 | return ocelot_vlan_vid_del(dev, vid); |
833 | } |
834 | |
835 | static void ocelot_vlan_mode(struct ocelot *ocelot, int port, |
836 | netdev_features_t features) |
837 | { |
838 | u32 val; |
839 | |
840 | /* Filtering */ |
841 | val = ocelot_read(ocelot, ANA_VLANMASK); |
842 | if (features & NETIF_F_HW_VLAN_CTAG_FILTER) |
843 | val |= BIT(port); |
844 | else |
845 | val &= ~BIT(port); |
846 | ocelot_write(ocelot, val, ANA_VLANMASK); |
847 | } |
848 | |
849 | static int ocelot_set_features(struct net_device *dev, |
850 | netdev_features_t features) |
851 | { |
852 | netdev_features_t changed = dev->features ^ features; |
853 | struct ocelot_port_private *priv = netdev_priv(dev); |
854 | struct ocelot *ocelot = priv->port.ocelot; |
855 | int port = priv->port.index; |
856 | |
857 | if ((dev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) && |
858 | priv->tc.offload_cnt) { |
859 | netdev_err(dev, |
860 | format: "Cannot disable HW TC offload while offloads active\n" ); |
861 | return -EBUSY; |
862 | } |
863 | |
864 | if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) |
865 | ocelot_vlan_mode(ocelot, port, features); |
866 | |
867 | return 0; |
868 | } |
869 | |
870 | static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) |
871 | { |
872 | struct ocelot_port_private *priv = netdev_priv(dev); |
873 | struct ocelot *ocelot = priv->port.ocelot; |
874 | int port = priv->port.index; |
875 | |
876 | /* If the attached PHY device isn't capable of timestamping operations, |
877 | * use our own (when possible). |
878 | */ |
879 | if (!phy_has_hwtstamp(phydev: dev->phydev) && ocelot->ptp) { |
880 | switch (cmd) { |
881 | case SIOCSHWTSTAMP: |
882 | return ocelot_hwstamp_set(ocelot, port, ifr); |
883 | case SIOCGHWTSTAMP: |
884 | return ocelot_hwstamp_get(ocelot, port, ifr); |
885 | } |
886 | } |
887 | |
888 | return phy_mii_ioctl(phydev: dev->phydev, ifr, cmd); |
889 | } |
890 | |
891 | static int ocelot_change_mtu(struct net_device *dev, int new_mtu) |
892 | { |
893 | struct ocelot_port_private *priv = netdev_priv(dev); |
894 | struct ocelot_port *ocelot_port = &priv->port; |
895 | struct ocelot *ocelot = ocelot_port->ocelot; |
896 | |
897 | ocelot_port_set_maxlen(ocelot, port: priv->port.index, sdu: new_mtu); |
898 | WRITE_ONCE(dev->mtu, new_mtu); |
899 | |
900 | return 0; |
901 | } |
902 | |
903 | static const struct net_device_ops ocelot_port_netdev_ops = { |
904 | .ndo_open = ocelot_port_open, |
905 | .ndo_stop = ocelot_port_stop, |
906 | .ndo_start_xmit = ocelot_port_xmit, |
907 | .ndo_change_mtu = ocelot_change_mtu, |
908 | .ndo_set_rx_mode = ocelot_set_rx_mode, |
909 | .ndo_set_mac_address = ocelot_port_set_mac_address, |
910 | .ndo_get_stats64 = ocelot_get_stats64, |
911 | .ndo_fdb_add = ocelot_port_fdb_add, |
912 | .ndo_fdb_del = ocelot_port_fdb_del, |
913 | .ndo_fdb_dump = ocelot_port_fdb_dump, |
914 | .ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid, |
915 | .ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid, |
916 | .ndo_set_features = ocelot_set_features, |
917 | .ndo_setup_tc = ocelot_setup_tc, |
918 | .ndo_eth_ioctl = ocelot_ioctl, |
919 | }; |
920 | |
921 | struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port) |
922 | { |
923 | struct ocelot_port *ocelot_port = ocelot->ports[port]; |
924 | struct ocelot_port_private *priv; |
925 | |
926 | if (!ocelot_port) |
927 | return NULL; |
928 | |
929 | priv = container_of(ocelot_port, struct ocelot_port_private, port); |
930 | |
931 | return priv->dev; |
932 | } |
933 | |
934 | /* Checks if the net_device instance given to us originates from our driver */ |
935 | static bool ocelot_netdevice_dev_check(const struct net_device *dev) |
936 | { |
937 | return dev->netdev_ops == &ocelot_port_netdev_ops; |
938 | } |
939 | |
940 | int ocelot_netdev_to_port(struct net_device *dev) |
941 | { |
942 | struct ocelot_port_private *priv; |
943 | |
944 | if (!dev || !ocelot_netdevice_dev_check(dev)) |
945 | return -EINVAL; |
946 | |
947 | priv = netdev_priv(dev); |
948 | |
949 | return priv->port.index; |
950 | } |
951 | |
952 | static void ocelot_port_get_strings(struct net_device *netdev, u32 sset, |
953 | u8 *data) |
954 | { |
955 | struct ocelot_port_private *priv = netdev_priv(dev: netdev); |
956 | struct ocelot *ocelot = priv->port.ocelot; |
957 | int port = priv->port.index; |
958 | |
959 | ocelot_get_strings(ocelot, port, sset, data); |
960 | } |
961 | |
962 | static void ocelot_port_get_ethtool_stats(struct net_device *dev, |
963 | struct ethtool_stats *stats, |
964 | u64 *data) |
965 | { |
966 | struct ocelot_port_private *priv = netdev_priv(dev); |
967 | struct ocelot *ocelot = priv->port.ocelot; |
968 | int port = priv->port.index; |
969 | |
970 | ocelot_get_ethtool_stats(ocelot, port, data); |
971 | } |
972 | |
973 | static int ocelot_port_get_sset_count(struct net_device *dev, int sset) |
974 | { |
975 | struct ocelot_port_private *priv = netdev_priv(dev); |
976 | struct ocelot *ocelot = priv->port.ocelot; |
977 | int port = priv->port.index; |
978 | |
979 | return ocelot_get_sset_count(ocelot, port, sset); |
980 | } |
981 | |
982 | static int ocelot_port_get_ts_info(struct net_device *dev, |
983 | struct ethtool_ts_info *info) |
984 | { |
985 | struct ocelot_port_private *priv = netdev_priv(dev); |
986 | struct ocelot *ocelot = priv->port.ocelot; |
987 | int port = priv->port.index; |
988 | |
989 | if (!ocelot->ptp) |
990 | return ethtool_op_get_ts_info(dev, eti: info); |
991 | |
992 | return ocelot_get_ts_info(ocelot, port, info); |
993 | } |
994 | |
995 | static const struct ethtool_ops ocelot_ethtool_ops = { |
996 | .get_strings = ocelot_port_get_strings, |
997 | .get_ethtool_stats = ocelot_port_get_ethtool_stats, |
998 | .get_sset_count = ocelot_port_get_sset_count, |
999 | .get_link_ksettings = phy_ethtool_get_link_ksettings, |
1000 | .set_link_ksettings = phy_ethtool_set_link_ksettings, |
1001 | .get_ts_info = ocelot_port_get_ts_info, |
1002 | }; |
1003 | |
1004 | static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port, |
1005 | u8 state) |
1006 | { |
1007 | ocelot_bridge_stp_state_set(ocelot, port, state); |
1008 | } |
1009 | |
1010 | static void ocelot_port_attr_ageing_set(struct ocelot *ocelot, int port, |
1011 | unsigned long ageing_clock_t) |
1012 | { |
1013 | unsigned long ageing_jiffies = clock_t_to_jiffies(x: ageing_clock_t); |
1014 | u32 ageing_time = jiffies_to_msecs(j: ageing_jiffies); |
1015 | |
1016 | ocelot_set_ageing_time(ocelot, msecs: ageing_time); |
1017 | } |
1018 | |
1019 | static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc) |
1020 | { |
1021 | u32 cpu_fwd_mcast = ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA | |
1022 | ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA | |
1023 | ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA; |
1024 | u32 val = 0; |
1025 | |
1026 | if (mc) |
1027 | val = cpu_fwd_mcast; |
1028 | |
1029 | ocelot_rmw_gix(ocelot, val, cpu_fwd_mcast, |
1030 | ANA_PORT_CPU_FWD_CFG, port); |
1031 | } |
1032 | |
1033 | static int ocelot_port_attr_set(struct net_device *dev, const void *ctx, |
1034 | const struct switchdev_attr *attr, |
1035 | struct netlink_ext_ack *extack) |
1036 | { |
1037 | struct ocelot_port_private *priv = netdev_priv(dev); |
1038 | struct ocelot *ocelot = priv->port.ocelot; |
1039 | int port = priv->port.index; |
1040 | int err = 0; |
1041 | |
1042 | if (ctx && ctx != priv) |
1043 | return 0; |
1044 | |
1045 | switch (attr->id) { |
1046 | case SWITCHDEV_ATTR_ID_PORT_STP_STATE: |
1047 | ocelot_port_attr_stp_state_set(ocelot, port, state: attr->u.stp_state); |
1048 | break; |
1049 | case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: |
1050 | ocelot_port_attr_ageing_set(ocelot, port, ageing_clock_t: attr->u.ageing_time); |
1051 | break; |
1052 | case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: |
1053 | ocelot_port_vlan_filtering(ocelot, port, enabled: attr->u.vlan_filtering, |
1054 | extack); |
1055 | break; |
1056 | case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED: |
1057 | ocelot_port_attr_mc_set(ocelot, port, mc: !attr->u.mc_disabled); |
1058 | break; |
1059 | case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS: |
1060 | err = ocelot_port_pre_bridge_flags(ocelot, port, |
1061 | val: attr->u.brport_flags); |
1062 | break; |
1063 | case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS: |
1064 | ocelot_port_bridge_flags(ocelot, port, val: attr->u.brport_flags); |
1065 | break; |
1066 | default: |
1067 | err = -EOPNOTSUPP; |
1068 | break; |
1069 | } |
1070 | |
1071 | return err; |
1072 | } |
1073 | |
1074 | static int ocelot_vlan_vid_prepare(struct net_device *dev, u16 vid, bool pvid, |
1075 | bool untagged, struct netlink_ext_ack *extack) |
1076 | { |
1077 | struct ocelot_port_private *priv = netdev_priv(dev); |
1078 | struct ocelot_port *ocelot_port = &priv->port; |
1079 | struct ocelot *ocelot = ocelot_port->ocelot; |
1080 | int port = priv->port.index; |
1081 | |
1082 | return ocelot_vlan_prepare(ocelot, port, vid, pvid, untagged, extack); |
1083 | } |
1084 | |
1085 | static int ocelot_port_obj_add_vlan(struct net_device *dev, |
1086 | const struct switchdev_obj_port_vlan *vlan, |
1087 | struct netlink_ext_ack *extack) |
1088 | { |
1089 | bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
1090 | bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; |
1091 | int ret; |
1092 | |
1093 | ret = ocelot_vlan_vid_prepare(dev, vid: vlan->vid, pvid, untagged, extack); |
1094 | if (ret) |
1095 | return ret; |
1096 | |
1097 | return ocelot_vlan_vid_add(dev, vid: vlan->vid, pvid, untagged); |
1098 | } |
1099 | |
1100 | static int ocelot_port_obj_add_mdb(struct net_device *dev, |
1101 | const struct switchdev_obj_port_mdb *mdb) |
1102 | { |
1103 | struct ocelot_port_private *priv = netdev_priv(dev); |
1104 | struct ocelot_port *ocelot_port = &priv->port; |
1105 | struct ocelot *ocelot = ocelot_port->ocelot; |
1106 | int port = priv->port.index; |
1107 | |
1108 | return ocelot_port_mdb_add(ocelot, port, mdb, bridge: ocelot_port->bridge); |
1109 | } |
1110 | |
1111 | static int ocelot_port_obj_del_mdb(struct net_device *dev, |
1112 | const struct switchdev_obj_port_mdb *mdb) |
1113 | { |
1114 | struct ocelot_port_private *priv = netdev_priv(dev); |
1115 | struct ocelot_port *ocelot_port = &priv->port; |
1116 | struct ocelot *ocelot = ocelot_port->ocelot; |
1117 | int port = priv->port.index; |
1118 | |
1119 | return ocelot_port_mdb_del(ocelot, port, mdb, bridge: ocelot_port->bridge); |
1120 | } |
1121 | |
1122 | static int ocelot_port_obj_mrp_add(struct net_device *dev, |
1123 | const struct switchdev_obj_mrp *mrp) |
1124 | { |
1125 | struct ocelot_port_private *priv = netdev_priv(dev); |
1126 | struct ocelot_port *ocelot_port = &priv->port; |
1127 | struct ocelot *ocelot = ocelot_port->ocelot; |
1128 | int port = priv->port.index; |
1129 | |
1130 | return ocelot_mrp_add(ocelot, port, mrp); |
1131 | } |
1132 | |
1133 | static int ocelot_port_obj_mrp_del(struct net_device *dev, |
1134 | const struct switchdev_obj_mrp *mrp) |
1135 | { |
1136 | struct ocelot_port_private *priv = netdev_priv(dev); |
1137 | struct ocelot_port *ocelot_port = &priv->port; |
1138 | struct ocelot *ocelot = ocelot_port->ocelot; |
1139 | int port = priv->port.index; |
1140 | |
1141 | return ocelot_mrp_del(ocelot, port, mrp); |
1142 | } |
1143 | |
1144 | static int |
1145 | ocelot_port_obj_mrp_add_ring_role(struct net_device *dev, |
1146 | const struct switchdev_obj_ring_role_mrp *mrp) |
1147 | { |
1148 | struct ocelot_port_private *priv = netdev_priv(dev); |
1149 | struct ocelot_port *ocelot_port = &priv->port; |
1150 | struct ocelot *ocelot = ocelot_port->ocelot; |
1151 | int port = priv->port.index; |
1152 | |
1153 | return ocelot_mrp_add_ring_role(ocelot, port, mrp); |
1154 | } |
1155 | |
1156 | static int |
1157 | ocelot_port_obj_mrp_del_ring_role(struct net_device *dev, |
1158 | const struct switchdev_obj_ring_role_mrp *mrp) |
1159 | { |
1160 | struct ocelot_port_private *priv = netdev_priv(dev); |
1161 | struct ocelot_port *ocelot_port = &priv->port; |
1162 | struct ocelot *ocelot = ocelot_port->ocelot; |
1163 | int port = priv->port.index; |
1164 | |
1165 | return ocelot_mrp_del_ring_role(ocelot, port, mrp); |
1166 | } |
1167 | |
1168 | static int ocelot_port_obj_add(struct net_device *dev, const void *ctx, |
1169 | const struct switchdev_obj *obj, |
1170 | struct netlink_ext_ack *extack) |
1171 | { |
1172 | struct ocelot_port_private *priv = netdev_priv(dev); |
1173 | int ret = 0; |
1174 | |
1175 | if (ctx && ctx != priv) |
1176 | return 0; |
1177 | |
1178 | switch (obj->id) { |
1179 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
1180 | ret = ocelot_port_obj_add_vlan(dev, |
1181 | SWITCHDEV_OBJ_PORT_VLAN(obj), |
1182 | extack); |
1183 | break; |
1184 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
1185 | ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj)); |
1186 | break; |
1187 | case SWITCHDEV_OBJ_ID_MRP: |
1188 | ret = ocelot_port_obj_mrp_add(dev, SWITCHDEV_OBJ_MRP(obj)); |
1189 | break; |
1190 | case SWITCHDEV_OBJ_ID_RING_ROLE_MRP: |
1191 | ret = ocelot_port_obj_mrp_add_ring_role(dev, |
1192 | SWITCHDEV_OBJ_RING_ROLE_MRP(obj)); |
1193 | break; |
1194 | default: |
1195 | return -EOPNOTSUPP; |
1196 | } |
1197 | |
1198 | return ret; |
1199 | } |
1200 | |
1201 | static int ocelot_port_obj_del(struct net_device *dev, const void *ctx, |
1202 | const struct switchdev_obj *obj) |
1203 | { |
1204 | struct ocelot_port_private *priv = netdev_priv(dev); |
1205 | int ret = 0; |
1206 | |
1207 | if (ctx && ctx != priv) |
1208 | return 0; |
1209 | |
1210 | switch (obj->id) { |
1211 | case SWITCHDEV_OBJ_ID_PORT_VLAN: |
1212 | ret = ocelot_vlan_vid_del(dev, |
1213 | SWITCHDEV_OBJ_PORT_VLAN(obj)->vid); |
1214 | break; |
1215 | case SWITCHDEV_OBJ_ID_PORT_MDB: |
1216 | ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj)); |
1217 | break; |
1218 | case SWITCHDEV_OBJ_ID_MRP: |
1219 | ret = ocelot_port_obj_mrp_del(dev, SWITCHDEV_OBJ_MRP(obj)); |
1220 | break; |
1221 | case SWITCHDEV_OBJ_ID_RING_ROLE_MRP: |
1222 | ret = ocelot_port_obj_mrp_del_ring_role(dev, |
1223 | SWITCHDEV_OBJ_RING_ROLE_MRP(obj)); |
1224 | break; |
1225 | default: |
1226 | return -EOPNOTSUPP; |
1227 | } |
1228 | |
1229 | return ret; |
1230 | } |
1231 | |
1232 | static void ocelot_inherit_brport_flags(struct ocelot *ocelot, int port, |
1233 | struct net_device *brport_dev) |
1234 | { |
1235 | struct switchdev_brport_flags flags = {0}; |
1236 | int flag; |
1237 | |
1238 | flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD; |
1239 | |
1240 | for_each_set_bit(flag, &flags.mask, 32) |
1241 | if (br_port_flag_is_set(dev: brport_dev, BIT(flag))) |
1242 | flags.val |= BIT(flag); |
1243 | |
1244 | ocelot_port_bridge_flags(ocelot, port, val: flags); |
1245 | } |
1246 | |
1247 | static void ocelot_clear_brport_flags(struct ocelot *ocelot, int port) |
1248 | { |
1249 | struct switchdev_brport_flags flags; |
1250 | |
1251 | flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD; |
1252 | flags.val = flags.mask & ~BR_LEARNING; |
1253 | |
1254 | ocelot_port_bridge_flags(ocelot, port, val: flags); |
1255 | } |
1256 | |
1257 | static int ocelot_switchdev_sync(struct ocelot *ocelot, int port, |
1258 | struct net_device *brport_dev, |
1259 | struct net_device *bridge_dev, |
1260 | struct netlink_ext_ack *extack) |
1261 | { |
1262 | clock_t ageing_time; |
1263 | u8 stp_state; |
1264 | |
1265 | ocelot_inherit_brport_flags(ocelot, port, brport_dev); |
1266 | |
1267 | stp_state = br_port_get_stp_state(dev: brport_dev); |
1268 | ocelot_bridge_stp_state_set(ocelot, port, state: stp_state); |
1269 | |
1270 | ageing_time = br_get_ageing_time(br_dev: bridge_dev); |
1271 | ocelot_port_attr_ageing_set(ocelot, port, ageing_clock_t: ageing_time); |
1272 | |
1273 | return ocelot_port_vlan_filtering(ocelot, port, |
1274 | enabled: br_vlan_enabled(dev: bridge_dev), |
1275 | extack); |
1276 | } |
1277 | |
1278 | static int ocelot_switchdev_unsync(struct ocelot *ocelot, int port) |
1279 | { |
1280 | int err; |
1281 | |
1282 | err = ocelot_port_vlan_filtering(ocelot, port, enabled: false, NULL); |
1283 | if (err) |
1284 | return err; |
1285 | |
1286 | ocelot_clear_brport_flags(ocelot, port); |
1287 | |
1288 | ocelot_bridge_stp_state_set(ocelot, port, BR_STATE_FORWARDING); |
1289 | |
1290 | return 0; |
1291 | } |
1292 | |
1293 | static int ocelot_bridge_num_get(struct ocelot *ocelot, |
1294 | const struct net_device *bridge_dev) |
1295 | { |
1296 | int bridge_num = ocelot_bridge_num_find(ocelot, bridge: bridge_dev); |
1297 | |
1298 | if (bridge_num < 0) { |
1299 | /* First port that offloads this bridge */ |
1300 | bridge_num = find_first_zero_bit(addr: &ocelot->bridges, |
1301 | size: ocelot->num_phys_ports); |
1302 | |
1303 | set_bit(nr: bridge_num, addr: &ocelot->bridges); |
1304 | } |
1305 | |
1306 | return bridge_num; |
1307 | } |
1308 | |
1309 | static void ocelot_bridge_num_put(struct ocelot *ocelot, |
1310 | const struct net_device *bridge_dev, |
1311 | int bridge_num) |
1312 | { |
1313 | /* Check if the bridge is still in use, otherwise it is time |
1314 | * to clean it up so we can reuse this bridge_num later. |
1315 | */ |
1316 | if (!ocelot_bridge_num_find(ocelot, bridge: bridge_dev)) |
1317 | clear_bit(nr: bridge_num, addr: &ocelot->bridges); |
1318 | } |
1319 | |
1320 | static int ocelot_netdevice_bridge_join(struct net_device *dev, |
1321 | struct net_device *brport_dev, |
1322 | struct net_device *bridge, |
1323 | struct netlink_ext_ack *extack) |
1324 | { |
1325 | struct ocelot_port_private *priv = netdev_priv(dev); |
1326 | struct ocelot_port *ocelot_port = &priv->port; |
1327 | struct ocelot *ocelot = ocelot_port->ocelot; |
1328 | int port = priv->port.index; |
1329 | int bridge_num, err; |
1330 | |
1331 | bridge_num = ocelot_bridge_num_get(ocelot, bridge_dev: bridge); |
1332 | |
1333 | err = ocelot_port_bridge_join(ocelot, port, bridge, bridge_num, |
1334 | extack); |
1335 | if (err) |
1336 | goto err_join; |
1337 | |
1338 | err = switchdev_bridge_port_offload(brport_dev, dev, ctx: priv, |
1339 | atomic_nb: &ocelot_switchdev_nb, |
1340 | blocking_nb: &ocelot_switchdev_blocking_nb, |
1341 | tx_fwd_offload: false, extack); |
1342 | if (err) |
1343 | goto err_switchdev_offload; |
1344 | |
1345 | err = ocelot_switchdev_sync(ocelot, port, brport_dev, bridge_dev: bridge, extack); |
1346 | if (err) |
1347 | goto err_switchdev_sync; |
1348 | |
1349 | return 0; |
1350 | |
1351 | err_switchdev_sync: |
1352 | switchdev_bridge_port_unoffload(brport_dev, ctx: priv, |
1353 | atomic_nb: &ocelot_switchdev_nb, |
1354 | blocking_nb: &ocelot_switchdev_blocking_nb); |
1355 | err_switchdev_offload: |
1356 | ocelot_port_bridge_leave(ocelot, port, bridge); |
1357 | err_join: |
1358 | ocelot_bridge_num_put(ocelot, bridge_dev: bridge, bridge_num); |
1359 | return err; |
1360 | } |
1361 | |
1362 | static void ocelot_netdevice_pre_bridge_leave(struct net_device *dev, |
1363 | struct net_device *brport_dev) |
1364 | { |
1365 | struct ocelot_port_private *priv = netdev_priv(dev); |
1366 | |
1367 | switchdev_bridge_port_unoffload(brport_dev, ctx: priv, |
1368 | atomic_nb: &ocelot_switchdev_nb, |
1369 | blocking_nb: &ocelot_switchdev_blocking_nb); |
1370 | } |
1371 | |
1372 | static int ocelot_netdevice_bridge_leave(struct net_device *dev, |
1373 | struct net_device *brport_dev, |
1374 | struct net_device *bridge) |
1375 | { |
1376 | struct ocelot_port_private *priv = netdev_priv(dev); |
1377 | struct ocelot_port *ocelot_port = &priv->port; |
1378 | struct ocelot *ocelot = ocelot_port->ocelot; |
1379 | int bridge_num = ocelot_port->bridge_num; |
1380 | int port = priv->port.index; |
1381 | int err; |
1382 | |
1383 | err = ocelot_switchdev_unsync(ocelot, port); |
1384 | if (err) |
1385 | return err; |
1386 | |
1387 | ocelot_port_bridge_leave(ocelot, port, bridge); |
1388 | ocelot_bridge_num_put(ocelot, bridge_dev: bridge, bridge_num); |
1389 | |
1390 | return 0; |
1391 | } |
1392 | |
1393 | static int ocelot_netdevice_lag_join(struct net_device *dev, |
1394 | struct net_device *bond, |
1395 | struct netdev_lag_upper_info *info, |
1396 | struct netlink_ext_ack *extack) |
1397 | { |
1398 | struct ocelot_port_private *priv = netdev_priv(dev); |
1399 | struct ocelot_port *ocelot_port = &priv->port; |
1400 | struct ocelot *ocelot = ocelot_port->ocelot; |
1401 | struct net_device *bridge_dev; |
1402 | int port = priv->port.index; |
1403 | int err; |
1404 | |
1405 | err = ocelot_port_lag_join(ocelot, port, bond, info, extack); |
1406 | if (err == -EOPNOTSUPP) |
1407 | /* Offloading not supported, fall back to software LAG */ |
1408 | return 0; |
1409 | |
1410 | bridge_dev = netdev_master_upper_dev_get(dev: bond); |
1411 | if (!bridge_dev || !netif_is_bridge_master(dev: bridge_dev)) |
1412 | return 0; |
1413 | |
1414 | err = ocelot_netdevice_bridge_join(dev, brport_dev: bond, bridge: bridge_dev, extack); |
1415 | if (err) |
1416 | goto err_bridge_join; |
1417 | |
1418 | return 0; |
1419 | |
1420 | err_bridge_join: |
1421 | ocelot_port_lag_leave(ocelot, port, bond); |
1422 | return err; |
1423 | } |
1424 | |
1425 | static void ocelot_netdevice_pre_lag_leave(struct net_device *dev, |
1426 | struct net_device *bond) |
1427 | { |
1428 | struct net_device *bridge_dev; |
1429 | |
1430 | bridge_dev = netdev_master_upper_dev_get(dev: bond); |
1431 | if (!bridge_dev || !netif_is_bridge_master(dev: bridge_dev)) |
1432 | return; |
1433 | |
1434 | ocelot_netdevice_pre_bridge_leave(dev, brport_dev: bond); |
1435 | } |
1436 | |
1437 | static int ocelot_netdevice_lag_leave(struct net_device *dev, |
1438 | struct net_device *bond) |
1439 | { |
1440 | struct ocelot_port_private *priv = netdev_priv(dev); |
1441 | struct ocelot_port *ocelot_port = &priv->port; |
1442 | struct ocelot *ocelot = ocelot_port->ocelot; |
1443 | struct net_device *bridge_dev; |
1444 | int port = priv->port.index; |
1445 | |
1446 | ocelot_port_lag_leave(ocelot, port, bond); |
1447 | |
1448 | bridge_dev = netdev_master_upper_dev_get(dev: bond); |
1449 | if (!bridge_dev || !netif_is_bridge_master(dev: bridge_dev)) |
1450 | return 0; |
1451 | |
1452 | return ocelot_netdevice_bridge_leave(dev, brport_dev: bond, bridge: bridge_dev); |
1453 | } |
1454 | |
1455 | static int ocelot_netdevice_changeupper(struct net_device *dev, |
1456 | struct net_device *brport_dev, |
1457 | struct netdev_notifier_changeupper_info *info) |
1458 | { |
1459 | struct netlink_ext_ack *extack; |
1460 | int err = 0; |
1461 | |
1462 | extack = netdev_notifier_info_to_extack(info: &info->info); |
1463 | |
1464 | if (netif_is_bridge_master(dev: info->upper_dev)) { |
1465 | if (info->linking) |
1466 | err = ocelot_netdevice_bridge_join(dev, brport_dev, |
1467 | bridge: info->upper_dev, |
1468 | extack); |
1469 | else |
1470 | err = ocelot_netdevice_bridge_leave(dev, brport_dev, |
1471 | bridge: info->upper_dev); |
1472 | } |
1473 | if (netif_is_lag_master(dev: info->upper_dev)) { |
1474 | if (info->linking) |
1475 | err = ocelot_netdevice_lag_join(dev, bond: info->upper_dev, |
1476 | info: info->upper_info, extack); |
1477 | else |
1478 | ocelot_netdevice_lag_leave(dev, bond: info->upper_dev); |
1479 | } |
1480 | |
1481 | return notifier_from_errno(err); |
1482 | } |
1483 | |
1484 | /* Treat CHANGEUPPER events on an offloaded LAG as individual CHANGEUPPER |
1485 | * events for the lower physical ports of the LAG. |
1486 | * If the LAG upper isn't offloaded, ignore its CHANGEUPPER events. |
1487 | * In case the LAG joined a bridge, notify that we are offloading it and can do |
1488 | * forwarding in hardware towards it. |
1489 | */ |
1490 | static int |
1491 | ocelot_netdevice_lag_changeupper(struct net_device *dev, |
1492 | struct netdev_notifier_changeupper_info *info) |
1493 | { |
1494 | struct net_device *lower; |
1495 | struct list_head *iter; |
1496 | int err = NOTIFY_DONE; |
1497 | |
1498 | netdev_for_each_lower_dev(dev, lower, iter) { |
1499 | struct ocelot_port_private *priv = netdev_priv(dev: lower); |
1500 | struct ocelot_port *ocelot_port = &priv->port; |
1501 | |
1502 | if (ocelot_port->bond != dev) |
1503 | return NOTIFY_OK; |
1504 | |
1505 | err = ocelot_netdevice_changeupper(dev: lower, brport_dev: dev, info); |
1506 | if (err) |
1507 | return notifier_from_errno(err); |
1508 | } |
1509 | |
1510 | return NOTIFY_DONE; |
1511 | } |
1512 | |
1513 | static int |
1514 | ocelot_netdevice_prechangeupper(struct net_device *dev, |
1515 | struct net_device *brport_dev, |
1516 | struct netdev_notifier_changeupper_info *info) |
1517 | { |
1518 | if (netif_is_bridge_master(dev: info->upper_dev) && !info->linking) |
1519 | ocelot_netdevice_pre_bridge_leave(dev, brport_dev); |
1520 | |
1521 | if (netif_is_lag_master(dev: info->upper_dev) && !info->linking) |
1522 | ocelot_netdevice_pre_lag_leave(dev, bond: info->upper_dev); |
1523 | |
1524 | return NOTIFY_DONE; |
1525 | } |
1526 | |
1527 | static int |
1528 | ocelot_netdevice_lag_prechangeupper(struct net_device *dev, |
1529 | struct netdev_notifier_changeupper_info *info) |
1530 | { |
1531 | struct net_device *lower; |
1532 | struct list_head *iter; |
1533 | int err = NOTIFY_DONE; |
1534 | |
1535 | netdev_for_each_lower_dev(dev, lower, iter) { |
1536 | struct ocelot_port_private *priv = netdev_priv(dev: lower); |
1537 | struct ocelot_port *ocelot_port = &priv->port; |
1538 | |
1539 | if (ocelot_port->bond != dev) |
1540 | return NOTIFY_OK; |
1541 | |
1542 | err = ocelot_netdevice_prechangeupper(dev, brport_dev: lower, info); |
1543 | if (err) |
1544 | return err; |
1545 | } |
1546 | |
1547 | return NOTIFY_DONE; |
1548 | } |
1549 | |
1550 | static int |
1551 | ocelot_netdevice_changelowerstate(struct net_device *dev, |
1552 | struct netdev_lag_lower_state_info *info) |
1553 | { |
1554 | struct ocelot_port_private *priv = netdev_priv(dev); |
1555 | bool is_active = info->link_up && info->tx_enabled; |
1556 | struct ocelot_port *ocelot_port = &priv->port; |
1557 | struct ocelot *ocelot = ocelot_port->ocelot; |
1558 | int port = priv->port.index; |
1559 | |
1560 | if (!ocelot_port->bond) |
1561 | return NOTIFY_DONE; |
1562 | |
1563 | if (ocelot_port->lag_tx_active == is_active) |
1564 | return NOTIFY_DONE; |
1565 | |
1566 | ocelot_port_lag_change(ocelot, port, lag_tx_active: is_active); |
1567 | |
1568 | return NOTIFY_OK; |
1569 | } |
1570 | |
1571 | static int ocelot_netdevice_event(struct notifier_block *unused, |
1572 | unsigned long event, void *ptr) |
1573 | { |
1574 | struct net_device *dev = netdev_notifier_info_to_dev(info: ptr); |
1575 | |
1576 | switch (event) { |
1577 | case NETDEV_PRECHANGEUPPER: { |
1578 | struct netdev_notifier_changeupper_info *info = ptr; |
1579 | |
1580 | if (ocelot_netdevice_dev_check(dev)) |
1581 | return ocelot_netdevice_prechangeupper(dev, brport_dev: dev, info); |
1582 | |
1583 | if (netif_is_lag_master(dev)) |
1584 | return ocelot_netdevice_lag_prechangeupper(dev, info); |
1585 | |
1586 | break; |
1587 | } |
1588 | case NETDEV_CHANGEUPPER: { |
1589 | struct netdev_notifier_changeupper_info *info = ptr; |
1590 | |
1591 | if (ocelot_netdevice_dev_check(dev)) |
1592 | return ocelot_netdevice_changeupper(dev, brport_dev: dev, info); |
1593 | |
1594 | if (netif_is_lag_master(dev)) |
1595 | return ocelot_netdevice_lag_changeupper(dev, info); |
1596 | |
1597 | break; |
1598 | } |
1599 | case NETDEV_CHANGELOWERSTATE: { |
1600 | struct netdev_notifier_changelowerstate_info *info = ptr; |
1601 | |
1602 | if (!ocelot_netdevice_dev_check(dev)) |
1603 | break; |
1604 | |
1605 | return ocelot_netdevice_changelowerstate(dev, |
1606 | info: info->lower_state_info); |
1607 | } |
1608 | default: |
1609 | break; |
1610 | } |
1611 | |
1612 | return NOTIFY_DONE; |
1613 | } |
1614 | |
1615 | struct notifier_block ocelot_netdevice_nb __read_mostly = { |
1616 | .notifier_call = ocelot_netdevice_event, |
1617 | }; |
1618 | |
1619 | static int ocelot_switchdev_event(struct notifier_block *unused, |
1620 | unsigned long event, void *ptr) |
1621 | { |
1622 | struct net_device *dev = switchdev_notifier_info_to_dev(info: ptr); |
1623 | int err; |
1624 | |
1625 | switch (event) { |
1626 | case SWITCHDEV_PORT_ATTR_SET: |
1627 | err = switchdev_handle_port_attr_set(dev, port_attr_info: ptr, |
1628 | check_cb: ocelot_netdevice_dev_check, |
1629 | set_cb: ocelot_port_attr_set); |
1630 | return notifier_from_errno(err); |
1631 | } |
1632 | |
1633 | return NOTIFY_DONE; |
1634 | } |
1635 | |
1636 | struct notifier_block ocelot_switchdev_nb __read_mostly = { |
1637 | .notifier_call = ocelot_switchdev_event, |
1638 | }; |
1639 | |
1640 | static int ocelot_switchdev_blocking_event(struct notifier_block *unused, |
1641 | unsigned long event, void *ptr) |
1642 | { |
1643 | struct net_device *dev = switchdev_notifier_info_to_dev(info: ptr); |
1644 | int err; |
1645 | |
1646 | switch (event) { |
1647 | /* Blocking events. */ |
1648 | case SWITCHDEV_PORT_OBJ_ADD: |
1649 | err = switchdev_handle_port_obj_add(dev, port_obj_info: ptr, |
1650 | check_cb: ocelot_netdevice_dev_check, |
1651 | add_cb: ocelot_port_obj_add); |
1652 | return notifier_from_errno(err); |
1653 | case SWITCHDEV_PORT_OBJ_DEL: |
1654 | err = switchdev_handle_port_obj_del(dev, port_obj_info: ptr, |
1655 | check_cb: ocelot_netdevice_dev_check, |
1656 | del_cb: ocelot_port_obj_del); |
1657 | return notifier_from_errno(err); |
1658 | case SWITCHDEV_PORT_ATTR_SET: |
1659 | err = switchdev_handle_port_attr_set(dev, port_attr_info: ptr, |
1660 | check_cb: ocelot_netdevice_dev_check, |
1661 | set_cb: ocelot_port_attr_set); |
1662 | return notifier_from_errno(err); |
1663 | } |
1664 | |
1665 | return NOTIFY_DONE; |
1666 | } |
1667 | |
1668 | struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = { |
1669 | .notifier_call = ocelot_switchdev_blocking_event, |
1670 | }; |
1671 | |
1672 | static void vsc7514_phylink_mac_config(struct phylink_config *config, |
1673 | unsigned int link_an_mode, |
1674 | const struct phylink_link_state *state) |
1675 | { |
1676 | struct net_device *ndev = to_net_dev(config->dev); |
1677 | struct ocelot_port_private *priv = netdev_priv(dev: ndev); |
1678 | struct ocelot *ocelot = priv->port.ocelot; |
1679 | int port = priv->port.index; |
1680 | |
1681 | ocelot_phylink_mac_config(ocelot, port, link_an_mode, state); |
1682 | } |
1683 | |
1684 | static void vsc7514_phylink_mac_link_down(struct phylink_config *config, |
1685 | unsigned int link_an_mode, |
1686 | phy_interface_t interface) |
1687 | { |
1688 | struct net_device *ndev = to_net_dev(config->dev); |
1689 | struct ocelot_port_private *priv = netdev_priv(dev: ndev); |
1690 | struct ocelot *ocelot = priv->port.ocelot; |
1691 | int port = priv->port.index; |
1692 | |
1693 | ocelot_phylink_mac_link_down(ocelot, port, link_an_mode, interface, |
1694 | OCELOT_MAC_QUIRKS); |
1695 | } |
1696 | |
1697 | static void vsc7514_phylink_mac_link_up(struct phylink_config *config, |
1698 | struct phy_device *phydev, |
1699 | unsigned int link_an_mode, |
1700 | phy_interface_t interface, |
1701 | int speed, int duplex, |
1702 | bool tx_pause, bool rx_pause) |
1703 | { |
1704 | struct net_device *ndev = to_net_dev(config->dev); |
1705 | struct ocelot_port_private *priv = netdev_priv(dev: ndev); |
1706 | struct ocelot *ocelot = priv->port.ocelot; |
1707 | int port = priv->port.index; |
1708 | |
1709 | ocelot_phylink_mac_link_up(ocelot, port, phydev, link_an_mode, |
1710 | interface, speed, duplex, |
1711 | tx_pause, rx_pause, OCELOT_MAC_QUIRKS); |
1712 | } |
1713 | |
1714 | static const struct phylink_mac_ops ocelot_phylink_ops = { |
1715 | .mac_config = vsc7514_phylink_mac_config, |
1716 | .mac_link_down = vsc7514_phylink_mac_link_down, |
1717 | .mac_link_up = vsc7514_phylink_mac_link_up, |
1718 | }; |
1719 | |
1720 | static int ocelot_port_phylink_create(struct ocelot *ocelot, int port, |
1721 | struct device_node *portnp) |
1722 | { |
1723 | struct ocelot_port *ocelot_port = ocelot->ports[port]; |
1724 | struct ocelot_port_private *priv; |
1725 | struct device *dev = ocelot->dev; |
1726 | phy_interface_t phy_mode; |
1727 | struct phylink *phylink; |
1728 | int err; |
1729 | |
1730 | of_get_phy_mode(np: portnp, interface: &phy_mode); |
1731 | /* DT bindings of internal PHY ports are broken and don't |
1732 | * specify a phy-mode |
1733 | */ |
1734 | if (phy_mode == PHY_INTERFACE_MODE_NA) |
1735 | phy_mode = PHY_INTERFACE_MODE_INTERNAL; |
1736 | |
1737 | if (phy_mode != PHY_INTERFACE_MODE_SGMII && |
1738 | phy_mode != PHY_INTERFACE_MODE_QSGMII && |
1739 | phy_mode != PHY_INTERFACE_MODE_INTERNAL) { |
1740 | dev_err(dev, "unsupported phy mode %s for port %d\n" , |
1741 | phy_modes(phy_mode), port); |
1742 | return -EINVAL; |
1743 | } |
1744 | |
1745 | ocelot_port->phy_mode = phy_mode; |
1746 | |
1747 | err = ocelot_port_configure_serdes(ocelot, port, portnp); |
1748 | if (err) |
1749 | return err; |
1750 | |
1751 | priv = container_of(ocelot_port, struct ocelot_port_private, port); |
1752 | |
1753 | priv->phylink_config.dev = &priv->dev->dev; |
1754 | priv->phylink_config.type = PHYLINK_NETDEV; |
1755 | priv->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | |
1756 | MAC_10 | MAC_100 | MAC_1000FD | MAC_2500FD; |
1757 | |
1758 | __set_bit(ocelot_port->phy_mode, |
1759 | priv->phylink_config.supported_interfaces); |
1760 | |
1761 | phylink = phylink_create(&priv->phylink_config, |
1762 | of_fwnode_handle(portnp), |
1763 | phy_mode, &ocelot_phylink_ops); |
1764 | if (IS_ERR(ptr: phylink)) { |
1765 | err = PTR_ERR(ptr: phylink); |
1766 | dev_err(dev, "Could not create phylink (%pe)\n" , phylink); |
1767 | return err; |
1768 | } |
1769 | |
1770 | priv->phylink = phylink; |
1771 | |
1772 | err = phylink_of_phy_connect(phylink, portnp, flags: 0); |
1773 | if (err) { |
1774 | dev_err(dev, "Could not connect to PHY: %pe\n" , ERR_PTR(err)); |
1775 | phylink_destroy(phylink); |
1776 | priv->phylink = NULL; |
1777 | return err; |
1778 | } |
1779 | |
1780 | return 0; |
1781 | } |
1782 | |
1783 | int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target, |
1784 | struct device_node *portnp) |
1785 | { |
1786 | struct ocelot_port_private *priv; |
1787 | struct ocelot_port *ocelot_port; |
1788 | struct net_device *dev; |
1789 | int err; |
1790 | |
1791 | dev = alloc_etherdev(sizeof(struct ocelot_port_private)); |
1792 | if (!dev) |
1793 | return -ENOMEM; |
1794 | SET_NETDEV_DEV(dev, ocelot->dev); |
1795 | priv = netdev_priv(dev); |
1796 | priv->dev = dev; |
1797 | ocelot_port = &priv->port; |
1798 | ocelot_port->ocelot = ocelot; |
1799 | ocelot_port->index = port; |
1800 | ocelot_port->target = target; |
1801 | ocelot->ports[port] = ocelot_port; |
1802 | |
1803 | dev->netdev_ops = &ocelot_port_netdev_ops; |
1804 | dev->ethtool_ops = &ocelot_ethtool_ops; |
1805 | dev->max_mtu = OCELOT_JUMBO_MTU; |
1806 | |
1807 | dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXFCS | |
1808 | NETIF_F_HW_TC; |
1809 | dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC; |
1810 | |
1811 | err = of_get_ethdev_address(np: portnp, dev); |
1812 | if (err) |
1813 | eth_hw_addr_gen(dev, base_addr: ocelot->base_mac, id: port); |
1814 | |
1815 | ocelot_mact_learn(ocelot, PGID_CPU, mac: dev->dev_addr, |
1816 | OCELOT_STANDALONE_PVID, type: ENTRYTYPE_LOCKED); |
1817 | |
1818 | ocelot_init_port(ocelot, port); |
1819 | |
1820 | err = ocelot_port_phylink_create(ocelot, port, portnp); |
1821 | if (err) |
1822 | goto out; |
1823 | |
1824 | if (ocelot->fdma) |
1825 | ocelot_fdma_netdev_init(ocelot, dev); |
1826 | |
1827 | SET_NETDEV_DEVLINK_PORT(dev, &ocelot->devlink_ports[port]); |
1828 | err = register_netdev(dev); |
1829 | if (err) { |
1830 | dev_err(ocelot->dev, "register_netdev failed\n" ); |
1831 | goto out_fdma_deinit; |
1832 | } |
1833 | |
1834 | return 0; |
1835 | |
1836 | out_fdma_deinit: |
1837 | if (ocelot->fdma) |
1838 | ocelot_fdma_netdev_deinit(ocelot, dev); |
1839 | out: |
1840 | ocelot->ports[port] = NULL; |
1841 | free_netdev(dev); |
1842 | |
1843 | return err; |
1844 | } |
1845 | |
1846 | void ocelot_release_port(struct ocelot_port *ocelot_port) |
1847 | { |
1848 | struct ocelot_port_private *priv = container_of(ocelot_port, |
1849 | struct ocelot_port_private, |
1850 | port); |
1851 | struct ocelot *ocelot = ocelot_port->ocelot; |
1852 | struct ocelot_fdma *fdma = ocelot->fdma; |
1853 | |
1854 | unregister_netdev(dev: priv->dev); |
1855 | |
1856 | if (fdma) |
1857 | ocelot_fdma_netdev_deinit(ocelot, dev: priv->dev); |
1858 | |
1859 | if (priv->phylink) { |
1860 | rtnl_lock(); |
1861 | phylink_disconnect_phy(priv->phylink); |
1862 | rtnl_unlock(); |
1863 | |
1864 | phylink_destroy(priv->phylink); |
1865 | } |
1866 | |
1867 | free_netdev(dev: priv->dev); |
1868 | } |
1869 | |