Loading...
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
23struct ocelot_dump_ctx {
24 struct net_device *dev;
25 struct sk_buff *skb;
26 struct netlink_callback *cb;
27 int idx;
28};
29
30static bool ocelot_netdevice_dev_check(const struct net_device *dev);
31
32static struct ocelot *devlink_port_to_ocelot(struct devlink_port *dlp)
33{
34 return devlink_priv(dlp->devlink);
35}
36
37static 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
44static 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(dl);
49
50 return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info);
51}
52
53static 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(dl);
59
60 return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size,
61 threshold_type, extack);
62}
63
64static 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
75static 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
87static int
88ocelot_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
101static int
102ocelot_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
116static int ocelot_devlink_sb_occ_snapshot(struct devlink *dl,
117 unsigned int sb_index)
118{
119 struct ocelot *ocelot = devlink_priv(dl);
120
121 return ocelot_sb_occ_snapshot(ocelot, sb_index);
122}
123
124static int ocelot_devlink_sb_occ_max_clear(struct devlink *dl,
125 unsigned int sb_index)
126{
127 struct ocelot *ocelot = devlink_priv(dl);
128
129 return ocelot_sb_occ_max_clear(ocelot, sb_index);
130}
131
132static 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
144static int
145ocelot_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
158const 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
171int 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(dlp, &attrs);
186
187 return devlink_port_register(dl, dlp, port);
188}
189
190void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port)
191{
192 struct devlink_port *dlp = &ocelot->devlink_ports[port];
193
194 devlink_port_unregister(dlp);
195}
196
197int 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
219static 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(&f->rule->action, action, extack);
242 if (err)
243 return err;
244
245 pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
246 pol.burst = action->police.burst;
247
248 err = ocelot_port_policer_add(ocelot, port, &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
260static 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(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(a->dev);
288
289 err = ocelot_port_mirror_add(ocelot, priv->port.index,
290 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
303static 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
323static 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, 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
341static 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(&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
399static 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(priv->dev, type_data))
406 return -EOPNOTSUPP;
407
408 switch (type) {
409 case TC_SETUP_CLSMATCHALL:
410 return ocelot_setup_tc_cls_matchall(priv, type_data, ingress);
411 case TC_SETUP_CLSFLOWER:
412 return ocelot_setup_tc_cls_flower(priv, type_data, ingress);
413 default:
414 return -EOPNOTSUPP;
415 }
416}
417
418static 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, true);
424}
425
426static 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, false);
432}
433
434static LIST_HEAD(ocelot_block_cb_list);
435
436static 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, priv, &ocelot_block_cb_list))
456 return -EBUSY;
457
458 block_cb = flow_block_cb_alloc(cb, priv, priv, NULL);
459 if (IS_ERR(block_cb))
460 return PTR_ERR(block_cb);
461
462 flow_block_cb_add(block_cb, f);
463 list_add_tail(&block_cb->driver_list, f->driver_block_list);
464 return 0;
465 case FLOW_BLOCK_UNBIND:
466 block_cb = flow_block_cb_lookup(f->block, cb, priv);
467 if (!block_cb)
468 return -ENOENT;
469
470 flow_block_cb_remove(block_cb, f);
471 list_del(&block_cb->driver_list);
472 return 0;
473 default:
474 return -EOPNOTSUPP;
475 }
476}
477
478static 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, type_data);
486 default:
487 return -EOPNOTSUPP;
488 }
489 return 0;
490}
491
492static 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, dev->dev_addr, vid,
507 ENTRYTYPE_LOCKED);
508
509 return 0;
510}
511
512static 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, dev->dev_addr, vid);
532
533 return 0;
534}
535
536static 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
545static 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
554static 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, 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)) {
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(ocelot, port, rew_op, skb, dev);
583 } else {
584 ocelot_port_inject_frame(ocelot, port, 0, rew_op, skb);
585
586 consume_skb(skb);
587 }
588
589 return NETDEV_TX_OK;
590}
591
592enum ocelot_action_type {
593 OCELOT_MACT_LEARN,
594 OCELOT_MACT_FORGET,
595};
596
597struct 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
620static 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, w->learn.pgid, w->learn.addr,
628 w->learn.vid, w->learn.entry_type);
629 break;
630 case OCELOT_MACT_FORGET:
631 ocelot_mact_forget(ocelot, w->forget.addr, w->forget.vid);
632 break;
633 default:
634 break;
635 }
636
637 kfree(w);
638}
639
640static 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(ctx, 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(ocelot->owq, &w->work);
651
652 return 0;
653}
654
655static 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(w.forget.addr, addr);
663 w.forget.vid = OCELOT_STANDALONE_PVID;
664 w.type = OCELOT_MACT_FORGET;
665
666 return ocelot_enqueue_mact_action(ocelot, &w);
667}
668
669static 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(w.learn.addr, 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, &w);
683}
684
685static 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, ocelot_mc_sync, ocelot_mc_unsync);
701}
702
703static 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, addr->sa_data,
712 OCELOT_STANDALONE_PVID, ENTRYTYPE_LOCKED);
713 /* Then forget the previous one. */
714 ocelot_mact_forget(ocelot, dev->dev_addr, OCELOT_STANDALONE_PVID);
715
716 eth_hw_addr_set(dev, addr->sa_data);
717 return 0;
718}
719
720static 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
730static 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, ocelot_port->bridge);
742}
743
744static 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, ocelot_port->bridge);
755}
756
757static 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(dump->skb, portid, seq, RTM_NEWNEIGH,
770 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(dump->skb, NDA_LLADDR, ETH_ALEN, addr))
784 goto nla_put_failure;
785
786 if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid))
787 goto nla_put_failure;
788
789 nlmsg_end(dump->skb, nlh);
790
791skip:
792 dump->idx++;
793 return 0;
794
795nla_put_failure:
796 nlmsg_cancel(dump->skb, nlh);
797 return -EMSGSIZE;
798}
799
800static 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, ocelot_port_fdb_do_dump, &dump);
817
818 *idx = dump.idx;
819
820 return ret;
821}
822
823static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
824 u16 vid)
825{
826 return ocelot_vlan_vid_add(dev, vid, false, false);
827}
828
829static 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
835static 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
849static 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 "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
870static 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(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(dev->phydev, ifr, cmd);
889}
890
891static 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, priv->port.index, new_mtu);
898 WRITE_ONCE(dev->mtu, new_mtu);
899
900 return 0;
901}
902
903static 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
921struct 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 */
935static bool ocelot_netdevice_dev_check(const struct net_device *dev)
936{
937 return dev->netdev_ops == &ocelot_port_netdev_ops;
938}
939
940int 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
952static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
953 u8 *data)
954{
955 struct ocelot_port_private *priv = netdev_priv(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
962static 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
973static 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
982static 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, info);
991
992 return ocelot_get_ts_info(ocelot, port, info);
993}
994
995static 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
1004static 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
1010static 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(ageing_clock_t);
1014 u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
1015
1016 ocelot_set_ageing_time(ocelot, ageing_time);
1017}
1018
1019static 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
1033static 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, attr->u.stp_state);
1048 break;
1049 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
1050 ocelot_port_attr_ageing_set(ocelot, port, attr->u.ageing_time);
1051 break;
1052 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
1053 ocelot_port_vlan_filtering(ocelot, port, attr->u.vlan_filtering,
1054 extack);
1055 break;
1056 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
1057 ocelot_port_attr_mc_set(ocelot, port, !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 attr->u.brport_flags);
1062 break;
1063 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
1064 ocelot_port_bridge_flags(ocelot, port, attr->u.brport_flags);
1065 break;
1066 default:
1067 err = -EOPNOTSUPP;
1068 break;
1069 }
1070
1071 return err;
1072}
1073
1074static 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
1085static 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, vlan->vid, pvid, untagged, extack);
1094 if (ret)
1095 return ret;
1096
1097 return ocelot_vlan_vid_add(dev, vlan->vid, pvid, untagged);
1098}
1099
1100static 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, ocelot_port->bridge);
1109}
1110
1111static 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, ocelot_port->bridge);
1120}
1121
1122static 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
1133static 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
1144static int
1145ocelot_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
1156static int
1157ocelot_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
1168static 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
1201static 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
1232static 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(brport_dev, BIT(flag)))
1242 flags.val |= BIT(flag);
1243
1244 ocelot_port_bridge_flags(ocelot, port, flags);
1245}
1246
1247static 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, flags);
1255}
1256
1257static 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(brport_dev);
1268 ocelot_bridge_stp_state_set(ocelot, port, stp_state);
1269
1270 ageing_time = br_get_ageing_time(bridge_dev);
1271 ocelot_port_attr_ageing_set(ocelot, port, ageing_time);
1272
1273 return ocelot_port_vlan_filtering(ocelot, port,
1274 br_vlan_enabled(bridge_dev),
1275 extack);
1276}
1277
1278static int ocelot_switchdev_unsync(struct ocelot *ocelot, int port)
1279{
1280 int err;
1281
1282 err = ocelot_port_vlan_filtering(ocelot, port, 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
1293static 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_dev);
1297
1298 if (bridge_num < 0) {
1299 /* First port that offloads this bridge */
1300 bridge_num = find_first_zero_bit(&ocelot->bridges,
1301 ocelot->num_phys_ports);
1302
1303 set_bit(bridge_num, &ocelot->bridges);
1304 }
1305
1306 return bridge_num;
1307}
1308
1309static 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_dev))
1317 clear_bit(bridge_num, &ocelot->bridges);
1318}
1319
1320static 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);
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, priv,
1339 &ocelot_switchdev_nb,
1340 &ocelot_switchdev_blocking_nb,
1341 false, extack);
1342 if (err)
1343 goto err_switchdev_offload;
1344
1345 err = ocelot_switchdev_sync(ocelot, port, brport_dev, bridge, extack);
1346 if (err)
1347 goto err_switchdev_sync;
1348
1349 return 0;
1350
1351err_switchdev_sync:
1352 switchdev_bridge_port_unoffload(brport_dev, priv,
1353 &ocelot_switchdev_nb,
1354 &ocelot_switchdev_blocking_nb);
1355err_switchdev_offload:
1356 ocelot_port_bridge_leave(ocelot, port, bridge);
1357err_join:
1358 ocelot_bridge_num_put(ocelot, bridge, bridge_num);
1359 return err;
1360}
1361
1362static 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, priv,
1368 &ocelot_switchdev_nb,
1369 &ocelot_switchdev_blocking_nb);
1370}
1371
1372static 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, bridge_num);
1389
1390 return 0;
1391}
1392
1393static 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(bond);
1411 if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
1412 return 0;
1413
1414 err = ocelot_netdevice_bridge_join(dev, bond, bridge_dev, extack);
1415 if (err)
1416 goto err_bridge_join;
1417
1418 return 0;
1419
1420err_bridge_join:
1421 ocelot_port_lag_leave(ocelot, port, bond);
1422 return err;
1423}
1424
1425static 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(bond);
1431 if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
1432 return;
1433
1434 ocelot_netdevice_pre_bridge_leave(dev, bond);
1435}
1436
1437static 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(bond);
1449 if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
1450 return 0;
1451
1452 return ocelot_netdevice_bridge_leave(dev, bond, bridge_dev);
1453}
1454
1455static 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);
1463
1464 if (netif_is_bridge_master(info->upper_dev)) {
1465 if (info->linking)
1466 err = ocelot_netdevice_bridge_join(dev, brport_dev,
1467 info->upper_dev,
1468 extack);
1469 else
1470 err = ocelot_netdevice_bridge_leave(dev, brport_dev,
1471 info->upper_dev);
1472 }
1473 if (netif_is_lag_master(info->upper_dev)) {
1474 if (info->linking)
1475 err = ocelot_netdevice_lag_join(dev, info->upper_dev,
1476 info->upper_info, extack);
1477 else
1478 ocelot_netdevice_lag_leave(dev, 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 */
1490static int
1491ocelot_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(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(lower, dev, info);
1506 if (err)
1507 return notifier_from_errno(err);
1508 }
1509
1510 return NOTIFY_DONE;
1511}
1512
1513static int
1514ocelot_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(info->upper_dev) && !info->linking)
1519 ocelot_netdevice_pre_bridge_leave(dev, brport_dev);
1520
1521 if (netif_is_lag_master(info->upper_dev) && !info->linking)
1522 ocelot_netdevice_pre_lag_leave(dev, info->upper_dev);
1523
1524 return NOTIFY_DONE;
1525}
1526
1527static int
1528ocelot_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(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, lower, info);
1543 if (err)
1544 return err;
1545 }
1546
1547 return NOTIFY_DONE;
1548}
1549
1550static int
1551ocelot_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, is_active);
1567
1568 return NOTIFY_OK;
1569}
1570
1571static 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(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, 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, 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->lower_state_info);
1607 }
1608 default:
1609 break;
1610 }
1611
1612 return NOTIFY_DONE;
1613}
1614
1615struct notifier_block ocelot_netdevice_nb __read_mostly = {
1616 .notifier_call = ocelot_netdevice_event,
1617};
1618
1619static 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(ptr);
1623 int err;
1624
1625 switch (event) {
1626 case SWITCHDEV_PORT_ATTR_SET:
1627 err = switchdev_handle_port_attr_set(dev, ptr,
1628 ocelot_netdevice_dev_check,
1629 ocelot_port_attr_set);
1630 return notifier_from_errno(err);
1631 }
1632
1633 return NOTIFY_DONE;
1634}
1635
1636struct notifier_block ocelot_switchdev_nb __read_mostly = {
1637 .notifier_call = ocelot_switchdev_event,
1638};
1639
1640static 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(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, ptr,
1650 ocelot_netdevice_dev_check,
1651 ocelot_port_obj_add);
1652 return notifier_from_errno(err);
1653 case SWITCHDEV_PORT_OBJ_DEL:
1654 err = switchdev_handle_port_obj_del(dev, ptr,
1655 ocelot_netdevice_dev_check,
1656 ocelot_port_obj_del);
1657 return notifier_from_errno(err);
1658 case SWITCHDEV_PORT_ATTR_SET:
1659 err = switchdev_handle_port_attr_set(dev, ptr,
1660 ocelot_netdevice_dev_check,
1661 ocelot_port_attr_set);
1662 return notifier_from_errno(err);
1663 }
1664
1665 return NOTIFY_DONE;
1666}
1667
1668struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = {
1669 .notifier_call = ocelot_switchdev_blocking_event,
1670};
1671
1672static 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(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
1684static 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(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
1697static 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(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
1714static 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
1720static 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(portnp, &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(phylink)) {
1765 err = PTR_ERR(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, 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
1783int 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(portnp, dev);
1812 if (err)
1813 eth_hw_addr_gen(dev, ocelot->base_mac, port);
1814
1815 ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr,
1816 OCELOT_STANDALONE_PVID, 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
1836out_fdma_deinit:
1837 if (ocelot->fdma)
1838 ocelot_fdma_netdev_deinit(ocelot, dev);
1839out:
1840 ocelot->ports[port] = NULL;
1841 free_netdev(dev);
1842
1843 return err;
1844}
1845
1846void 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(priv->dev);
1855
1856 if (fdma)
1857 ocelot_fdma_netdev_deinit(ocelot, 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(priv->dev);
1868}
1// SPDX-License-Identifier: (GPL-2.0 OR MIT)
2/* Microsemi Ocelot Switch driver
3 *
4 * Copyright (c) 2017, 2019 Microsemi Corporation
5 */
6
7#include <linux/if_bridge.h>
8#include "ocelot.h"
9#include "ocelot_vcap.h"
10
11int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv,
12 struct flow_cls_offload *f,
13 bool ingress)
14{
15 struct ocelot *ocelot = priv->port.ocelot;
16 int port = priv->chip_port;
17
18 if (!ingress)
19 return -EOPNOTSUPP;
20
21 switch (f->command) {
22 case FLOW_CLS_REPLACE:
23 return ocelot_cls_flower_replace(ocelot, port, f, ingress);
24 case FLOW_CLS_DESTROY:
25 return ocelot_cls_flower_destroy(ocelot, port, f, ingress);
26 case FLOW_CLS_STATS:
27 return ocelot_cls_flower_stats(ocelot, port, f, ingress);
28 default:
29 return -EOPNOTSUPP;
30 }
31}
32
33static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv,
34 struct tc_cls_matchall_offload *f,
35 bool ingress)
36{
37 struct netlink_ext_ack *extack = f->common.extack;
38 struct ocelot *ocelot = priv->port.ocelot;
39 struct ocelot_policer pol = { 0 };
40 struct flow_action_entry *action;
41 int port = priv->chip_port;
42 int err;
43
44 if (!ingress) {
45 NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported");
46 return -EOPNOTSUPP;
47 }
48
49 switch (f->command) {
50 case TC_CLSMATCHALL_REPLACE:
51 if (!flow_offload_has_one_action(&f->rule->action)) {
52 NL_SET_ERR_MSG_MOD(extack,
53 "Only one action is supported");
54 return -EOPNOTSUPP;
55 }
56
57 if (priv->tc.block_shared) {
58 NL_SET_ERR_MSG_MOD(extack,
59 "Rate limit is not supported on shared blocks");
60 return -EOPNOTSUPP;
61 }
62
63 action = &f->rule->action.entries[0];
64
65 if (action->id != FLOW_ACTION_POLICE) {
66 NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
67 return -EOPNOTSUPP;
68 }
69
70 if (priv->tc.police_id && priv->tc.police_id != f->cookie) {
71 NL_SET_ERR_MSG_MOD(extack,
72 "Only one policer per port is supported");
73 return -EEXIST;
74 }
75
76 pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
77 pol.burst = action->police.burst;
78
79 err = ocelot_port_policer_add(ocelot, port, &pol);
80 if (err) {
81 NL_SET_ERR_MSG_MOD(extack, "Could not add policer");
82 return err;
83 }
84
85 priv->tc.police_id = f->cookie;
86 priv->tc.offload_cnt++;
87 return 0;
88 case TC_CLSMATCHALL_DESTROY:
89 if (priv->tc.police_id != f->cookie)
90 return -ENOENT;
91
92 err = ocelot_port_policer_del(ocelot, port);
93 if (err) {
94 NL_SET_ERR_MSG_MOD(extack,
95 "Could not delete policer");
96 return err;
97 }
98 priv->tc.police_id = 0;
99 priv->tc.offload_cnt--;
100 return 0;
101 case TC_CLSMATCHALL_STATS:
102 default:
103 return -EOPNOTSUPP;
104 }
105}
106
107static int ocelot_setup_tc_block_cb(enum tc_setup_type type,
108 void *type_data,
109 void *cb_priv, bool ingress)
110{
111 struct ocelot_port_private *priv = cb_priv;
112
113 if (!tc_cls_can_offload_and_chain0(priv->dev, type_data))
114 return -EOPNOTSUPP;
115
116 switch (type) {
117 case TC_SETUP_CLSMATCHALL:
118 return ocelot_setup_tc_cls_matchall(priv, type_data, ingress);
119 case TC_SETUP_CLSFLOWER:
120 return ocelot_setup_tc_cls_flower(priv, type_data, ingress);
121 default:
122 return -EOPNOTSUPP;
123 }
124}
125
126static int ocelot_setup_tc_block_cb_ig(enum tc_setup_type type,
127 void *type_data,
128 void *cb_priv)
129{
130 return ocelot_setup_tc_block_cb(type, type_data,
131 cb_priv, true);
132}
133
134static int ocelot_setup_tc_block_cb_eg(enum tc_setup_type type,
135 void *type_data,
136 void *cb_priv)
137{
138 return ocelot_setup_tc_block_cb(type, type_data,
139 cb_priv, false);
140}
141
142static LIST_HEAD(ocelot_block_cb_list);
143
144static int ocelot_setup_tc_block(struct ocelot_port_private *priv,
145 struct flow_block_offload *f)
146{
147 struct flow_block_cb *block_cb;
148 flow_setup_cb_t *cb;
149
150 if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
151 cb = ocelot_setup_tc_block_cb_ig;
152 priv->tc.block_shared = f->block_shared;
153 } else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
154 cb = ocelot_setup_tc_block_cb_eg;
155 } else {
156 return -EOPNOTSUPP;
157 }
158
159 f->driver_block_list = &ocelot_block_cb_list;
160
161 switch (f->command) {
162 case FLOW_BLOCK_BIND:
163 if (flow_block_cb_is_busy(cb, priv, &ocelot_block_cb_list))
164 return -EBUSY;
165
166 block_cb = flow_block_cb_alloc(cb, priv, priv, NULL);
167 if (IS_ERR(block_cb))
168 return PTR_ERR(block_cb);
169
170 flow_block_cb_add(block_cb, f);
171 list_add_tail(&block_cb->driver_list, f->driver_block_list);
172 return 0;
173 case FLOW_BLOCK_UNBIND:
174 block_cb = flow_block_cb_lookup(f->block, cb, priv);
175 if (!block_cb)
176 return -ENOENT;
177
178 flow_block_cb_remove(block_cb, f);
179 list_del(&block_cb->driver_list);
180 return 0;
181 default:
182 return -EOPNOTSUPP;
183 }
184}
185
186static int ocelot_setup_tc(struct net_device *dev, enum tc_setup_type type,
187 void *type_data)
188{
189 struct ocelot_port_private *priv = netdev_priv(dev);
190
191 switch (type) {
192 case TC_SETUP_BLOCK:
193 return ocelot_setup_tc_block(priv, type_data);
194 default:
195 return -EOPNOTSUPP;
196 }
197 return 0;
198}
199
200static void ocelot_port_adjust_link(struct net_device *dev)
201{
202 struct ocelot_port_private *priv = netdev_priv(dev);
203 struct ocelot *ocelot = priv->port.ocelot;
204 int port = priv->chip_port;
205
206 ocelot_adjust_link(ocelot, port, dev->phydev);
207}
208
209static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid,
210 bool untagged)
211{
212 struct ocelot_port_private *priv = netdev_priv(dev);
213 struct ocelot_port *ocelot_port = &priv->port;
214 struct ocelot *ocelot = ocelot_port->ocelot;
215 int port = priv->chip_port;
216 int ret;
217
218 ret = ocelot_vlan_add(ocelot, port, vid, pvid, untagged);
219 if (ret)
220 return ret;
221
222 /* Add the port MAC address to with the right VLAN information */
223 ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, vid,
224 ENTRYTYPE_LOCKED);
225
226 return 0;
227}
228
229static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid)
230{
231 struct ocelot_port_private *priv = netdev_priv(dev);
232 struct ocelot *ocelot = priv->port.ocelot;
233 int port = priv->chip_port;
234 int ret;
235
236 /* 8021q removes VID 0 on module unload for all interfaces
237 * with VLAN filtering feature. We need to keep it to receive
238 * untagged traffic.
239 */
240 if (vid == 0)
241 return 0;
242
243 ret = ocelot_vlan_del(ocelot, port, vid);
244 if (ret)
245 return ret;
246
247 /* Del the port MAC address to with the right VLAN information */
248 ocelot_mact_forget(ocelot, dev->dev_addr, vid);
249
250 return 0;
251}
252
253static int ocelot_port_open(struct net_device *dev)
254{
255 struct ocelot_port_private *priv = netdev_priv(dev);
256 struct ocelot_port *ocelot_port = &priv->port;
257 struct ocelot *ocelot = ocelot_port->ocelot;
258 int port = priv->chip_port;
259 int err;
260
261 if (priv->serdes) {
262 err = phy_set_mode_ext(priv->serdes, PHY_MODE_ETHERNET,
263 ocelot_port->phy_mode);
264 if (err) {
265 netdev_err(dev, "Could not set mode of SerDes\n");
266 return err;
267 }
268 }
269
270 err = phy_connect_direct(dev, priv->phy, &ocelot_port_adjust_link,
271 ocelot_port->phy_mode);
272 if (err) {
273 netdev_err(dev, "Could not attach to PHY\n");
274 return err;
275 }
276
277 dev->phydev = priv->phy;
278
279 phy_attached_info(priv->phy);
280 phy_start(priv->phy);
281
282 ocelot_port_enable(ocelot, port, priv->phy);
283
284 return 0;
285}
286
287static int ocelot_port_stop(struct net_device *dev)
288{
289 struct ocelot_port_private *priv = netdev_priv(dev);
290 struct ocelot *ocelot = priv->port.ocelot;
291 int port = priv->chip_port;
292
293 phy_disconnect(priv->phy);
294
295 dev->phydev = NULL;
296
297 ocelot_port_disable(ocelot, port);
298
299 return 0;
300}
301
302/* Generate the IFH for frame injection
303 *
304 * The IFH is a 128bit-value
305 * bit 127: bypass the analyzer processing
306 * bit 56-67: destination mask
307 * bit 28-29: pop_cnt: 3 disables all rewriting of the frame
308 * bit 20-27: cpu extraction queue mask
309 * bit 16: tag type 0: C-tag, 1: S-tag
310 * bit 0-11: VID
311 */
312static int ocelot_gen_ifh(u32 *ifh, struct frame_info *info)
313{
314 ifh[0] = IFH_INJ_BYPASS | ((0x1ff & info->rew_op) << 21);
315 ifh[1] = (0xf00 & info->port) >> 8;
316 ifh[2] = (0xff & info->port) << 24;
317 ifh[3] = (info->tag_type << 16) | info->vid;
318
319 return 0;
320}
321
322static int ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev)
323{
324 struct ocelot_port_private *priv = netdev_priv(dev);
325 struct skb_shared_info *shinfo = skb_shinfo(skb);
326 struct ocelot_port *ocelot_port = &priv->port;
327 struct ocelot *ocelot = ocelot_port->ocelot;
328 u32 val, ifh[OCELOT_TAG_LEN / 4];
329 struct frame_info info = {};
330 u8 grp = 0; /* Send everything on CPU group 0 */
331 unsigned int i, count, last;
332 int port = priv->chip_port;
333 bool do_tstamp;
334
335 val = ocelot_read(ocelot, QS_INJ_STATUS);
336 if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))) ||
337 (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp))))
338 return NETDEV_TX_BUSY;
339
340 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
341 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
342
343 info.port = BIT(port);
344 info.tag_type = IFH_TAG_TYPE_C;
345 info.vid = skb_vlan_tag_get(skb);
346
347 /* Check if timestamping is needed */
348 do_tstamp = (ocelot_port_add_txtstamp_skb(ocelot_port, skb) == 0);
349
350 if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP) {
351 info.rew_op = ocelot_port->ptp_cmd;
352 if (ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP)
353 info.rew_op |= skb->cb[0] << 3;
354 }
355
356 ocelot_gen_ifh(ifh, &info);
357
358 for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
359 ocelot_write_rix(ocelot, (__force u32)cpu_to_be32(ifh[i]),
360 QS_INJ_WR, grp);
361
362 count = (skb->len + 3) / 4;
363 last = skb->len % 4;
364 for (i = 0; i < count; i++)
365 ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
366
367 /* Add padding */
368 while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
369 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
370 i++;
371 }
372
373 /* Indicate EOF and valid bytes in last word */
374 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
375 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
376 QS_INJ_CTRL_EOF,
377 QS_INJ_CTRL, grp);
378
379 /* Add dummy CRC */
380 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
381 skb_tx_timestamp(skb);
382
383 dev->stats.tx_packets++;
384 dev->stats.tx_bytes += skb->len;
385
386 if (!do_tstamp)
387 dev_kfree_skb_any(skb);
388
389 return NETDEV_TX_OK;
390}
391
392static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr)
393{
394 struct ocelot_port_private *priv = netdev_priv(dev);
395 struct ocelot_port *ocelot_port = &priv->port;
396 struct ocelot *ocelot = ocelot_port->ocelot;
397
398 return ocelot_mact_forget(ocelot, addr, ocelot_port->pvid);
399}
400
401static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr)
402{
403 struct ocelot_port_private *priv = netdev_priv(dev);
404 struct ocelot_port *ocelot_port = &priv->port;
405 struct ocelot *ocelot = ocelot_port->ocelot;
406
407 return ocelot_mact_learn(ocelot, PGID_CPU, addr, ocelot_port->pvid,
408 ENTRYTYPE_LOCKED);
409}
410
411static void ocelot_set_rx_mode(struct net_device *dev)
412{
413 struct ocelot_port_private *priv = netdev_priv(dev);
414 struct ocelot *ocelot = priv->port.ocelot;
415 u32 val;
416 int i;
417
418 /* This doesn't handle promiscuous mode because the bridge core is
419 * setting IFF_PROMISC on all slave interfaces and all frames would be
420 * forwarded to the CPU port.
421 */
422 val = GENMASK(ocelot->num_phys_ports - 1, 0);
423 for_each_nonreserved_multicast_dest_pgid(ocelot, i)
424 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
425
426 __dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync);
427}
428
429static int ocelot_port_get_phys_port_name(struct net_device *dev,
430 char *buf, size_t len)
431{
432 struct ocelot_port_private *priv = netdev_priv(dev);
433 int port = priv->chip_port;
434 int ret;
435
436 ret = snprintf(buf, len, "p%d", port);
437 if (ret >= len)
438 return -EINVAL;
439
440 return 0;
441}
442
443static int ocelot_port_set_mac_address(struct net_device *dev, void *p)
444{
445 struct ocelot_port_private *priv = netdev_priv(dev);
446 struct ocelot_port *ocelot_port = &priv->port;
447 struct ocelot *ocelot = ocelot_port->ocelot;
448 const struct sockaddr *addr = p;
449
450 /* Learn the new net device MAC address in the mac table. */
451 ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data, ocelot_port->pvid,
452 ENTRYTYPE_LOCKED);
453 /* Then forget the previous one. */
454 ocelot_mact_forget(ocelot, dev->dev_addr, ocelot_port->pvid);
455
456 ether_addr_copy(dev->dev_addr, addr->sa_data);
457 return 0;
458}
459
460static void ocelot_get_stats64(struct net_device *dev,
461 struct rtnl_link_stats64 *stats)
462{
463 struct ocelot_port_private *priv = netdev_priv(dev);
464 struct ocelot *ocelot = priv->port.ocelot;
465 int port = priv->chip_port;
466
467 /* Configure the port to read the stats from */
468 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port),
469 SYS_STAT_CFG);
470
471 /* Get Rx stats */
472 stats->rx_bytes = ocelot_read(ocelot, SYS_COUNT_RX_OCTETS);
473 stats->rx_packets = ocelot_read(ocelot, SYS_COUNT_RX_SHORTS) +
474 ocelot_read(ocelot, SYS_COUNT_RX_FRAGMENTS) +
475 ocelot_read(ocelot, SYS_COUNT_RX_JABBERS) +
476 ocelot_read(ocelot, SYS_COUNT_RX_LONGS) +
477 ocelot_read(ocelot, SYS_COUNT_RX_64) +
478 ocelot_read(ocelot, SYS_COUNT_RX_65_127) +
479 ocelot_read(ocelot, SYS_COUNT_RX_128_255) +
480 ocelot_read(ocelot, SYS_COUNT_RX_256_1023) +
481 ocelot_read(ocelot, SYS_COUNT_RX_1024_1526) +
482 ocelot_read(ocelot, SYS_COUNT_RX_1527_MAX);
483 stats->multicast = ocelot_read(ocelot, SYS_COUNT_RX_MULTICAST);
484 stats->rx_dropped = dev->stats.rx_dropped;
485
486 /* Get Tx stats */
487 stats->tx_bytes = ocelot_read(ocelot, SYS_COUNT_TX_OCTETS);
488 stats->tx_packets = ocelot_read(ocelot, SYS_COUNT_TX_64) +
489 ocelot_read(ocelot, SYS_COUNT_TX_65_127) +
490 ocelot_read(ocelot, SYS_COUNT_TX_128_511) +
491 ocelot_read(ocelot, SYS_COUNT_TX_512_1023) +
492 ocelot_read(ocelot, SYS_COUNT_TX_1024_1526) +
493 ocelot_read(ocelot, SYS_COUNT_TX_1527_MAX);
494 stats->tx_dropped = ocelot_read(ocelot, SYS_COUNT_TX_DROPS) +
495 ocelot_read(ocelot, SYS_COUNT_TX_AGING);
496 stats->collisions = ocelot_read(ocelot, SYS_COUNT_TX_COLLISION);
497}
498
499static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
500 struct net_device *dev,
501 const unsigned char *addr,
502 u16 vid, u16 flags,
503 struct netlink_ext_ack *extack)
504{
505 struct ocelot_port_private *priv = netdev_priv(dev);
506 struct ocelot *ocelot = priv->port.ocelot;
507 int port = priv->chip_port;
508
509 return ocelot_fdb_add(ocelot, port, addr, vid);
510}
511
512static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
513 struct net_device *dev,
514 const unsigned char *addr, u16 vid)
515{
516 struct ocelot_port_private *priv = netdev_priv(dev);
517 struct ocelot *ocelot = priv->port.ocelot;
518 int port = priv->chip_port;
519
520 return ocelot_fdb_del(ocelot, port, addr, vid);
521}
522
523static int ocelot_port_fdb_dump(struct sk_buff *skb,
524 struct netlink_callback *cb,
525 struct net_device *dev,
526 struct net_device *filter_dev, int *idx)
527{
528 struct ocelot_port_private *priv = netdev_priv(dev);
529 struct ocelot *ocelot = priv->port.ocelot;
530 struct ocelot_dump_ctx dump = {
531 .dev = dev,
532 .skb = skb,
533 .cb = cb,
534 .idx = *idx,
535 };
536 int port = priv->chip_port;
537 int ret;
538
539 ret = ocelot_fdb_dump(ocelot, port, ocelot_port_fdb_do_dump, &dump);
540
541 *idx = dump.idx;
542
543 return ret;
544}
545
546static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
547 u16 vid)
548{
549 return ocelot_vlan_vid_add(dev, vid, false, false);
550}
551
552static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
553 u16 vid)
554{
555 return ocelot_vlan_vid_del(dev, vid);
556}
557
558static void ocelot_vlan_mode(struct ocelot *ocelot, int port,
559 netdev_features_t features)
560{
561 u32 val;
562
563 /* Filtering */
564 val = ocelot_read(ocelot, ANA_VLANMASK);
565 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
566 val |= BIT(port);
567 else
568 val &= ~BIT(port);
569 ocelot_write(ocelot, val, ANA_VLANMASK);
570}
571
572static int ocelot_set_features(struct net_device *dev,
573 netdev_features_t features)
574{
575 netdev_features_t changed = dev->features ^ features;
576 struct ocelot_port_private *priv = netdev_priv(dev);
577 struct ocelot *ocelot = priv->port.ocelot;
578 int port = priv->chip_port;
579
580 if ((dev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) &&
581 priv->tc.offload_cnt) {
582 netdev_err(dev,
583 "Cannot disable HW TC offload while offloads active\n");
584 return -EBUSY;
585 }
586
587 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER)
588 ocelot_vlan_mode(ocelot, port, features);
589
590 return 0;
591}
592
593static int ocelot_get_port_parent_id(struct net_device *dev,
594 struct netdev_phys_item_id *ppid)
595{
596 struct ocelot_port_private *priv = netdev_priv(dev);
597 struct ocelot *ocelot = priv->port.ocelot;
598
599 ppid->id_len = sizeof(ocelot->base_mac);
600 memcpy(&ppid->id, &ocelot->base_mac, ppid->id_len);
601
602 return 0;
603}
604
605static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
606{
607 struct ocelot_port_private *priv = netdev_priv(dev);
608 struct ocelot *ocelot = priv->port.ocelot;
609 int port = priv->chip_port;
610
611 /* If the attached PHY device isn't capable of timestamping operations,
612 * use our own (when possible).
613 */
614 if (!phy_has_hwtstamp(dev->phydev) && ocelot->ptp) {
615 switch (cmd) {
616 case SIOCSHWTSTAMP:
617 return ocelot_hwstamp_set(ocelot, port, ifr);
618 case SIOCGHWTSTAMP:
619 return ocelot_hwstamp_get(ocelot, port, ifr);
620 }
621 }
622
623 return phy_mii_ioctl(dev->phydev, ifr, cmd);
624}
625
626static const struct net_device_ops ocelot_port_netdev_ops = {
627 .ndo_open = ocelot_port_open,
628 .ndo_stop = ocelot_port_stop,
629 .ndo_start_xmit = ocelot_port_xmit,
630 .ndo_set_rx_mode = ocelot_set_rx_mode,
631 .ndo_get_phys_port_name = ocelot_port_get_phys_port_name,
632 .ndo_set_mac_address = ocelot_port_set_mac_address,
633 .ndo_get_stats64 = ocelot_get_stats64,
634 .ndo_fdb_add = ocelot_port_fdb_add,
635 .ndo_fdb_del = ocelot_port_fdb_del,
636 .ndo_fdb_dump = ocelot_port_fdb_dump,
637 .ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid,
638 .ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid,
639 .ndo_set_features = ocelot_set_features,
640 .ndo_get_port_parent_id = ocelot_get_port_parent_id,
641 .ndo_setup_tc = ocelot_setup_tc,
642 .ndo_do_ioctl = ocelot_ioctl,
643};
644
645static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
646 u8 *data)
647{
648 struct ocelot_port_private *priv = netdev_priv(netdev);
649 struct ocelot *ocelot = priv->port.ocelot;
650 int port = priv->chip_port;
651
652 ocelot_get_strings(ocelot, port, sset, data);
653}
654
655static void ocelot_port_get_ethtool_stats(struct net_device *dev,
656 struct ethtool_stats *stats,
657 u64 *data)
658{
659 struct ocelot_port_private *priv = netdev_priv(dev);
660 struct ocelot *ocelot = priv->port.ocelot;
661 int port = priv->chip_port;
662
663 ocelot_get_ethtool_stats(ocelot, port, data);
664}
665
666static int ocelot_port_get_sset_count(struct net_device *dev, int sset)
667{
668 struct ocelot_port_private *priv = netdev_priv(dev);
669 struct ocelot *ocelot = priv->port.ocelot;
670 int port = priv->chip_port;
671
672 return ocelot_get_sset_count(ocelot, port, sset);
673}
674
675static int ocelot_port_get_ts_info(struct net_device *dev,
676 struct ethtool_ts_info *info)
677{
678 struct ocelot_port_private *priv = netdev_priv(dev);
679 struct ocelot *ocelot = priv->port.ocelot;
680 int port = priv->chip_port;
681
682 if (!ocelot->ptp)
683 return ethtool_op_get_ts_info(dev, info);
684
685 return ocelot_get_ts_info(ocelot, port, info);
686}
687
688static const struct ethtool_ops ocelot_ethtool_ops = {
689 .get_strings = ocelot_port_get_strings,
690 .get_ethtool_stats = ocelot_port_get_ethtool_stats,
691 .get_sset_count = ocelot_port_get_sset_count,
692 .get_link_ksettings = phy_ethtool_get_link_ksettings,
693 .set_link_ksettings = phy_ethtool_set_link_ksettings,
694 .get_ts_info = ocelot_port_get_ts_info,
695};
696
697static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port,
698 struct switchdev_trans *trans,
699 u8 state)
700{
701 if (switchdev_trans_ph_prepare(trans))
702 return;
703
704 ocelot_bridge_stp_state_set(ocelot, port, state);
705}
706
707static void ocelot_port_attr_ageing_set(struct ocelot *ocelot, int port,
708 unsigned long ageing_clock_t)
709{
710 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
711 u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
712
713 ocelot_set_ageing_time(ocelot, ageing_time);
714}
715
716static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc)
717{
718 u32 cpu_fwd_mcast = ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA |
719 ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA |
720 ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA;
721 u32 val = 0;
722
723 if (mc)
724 val = cpu_fwd_mcast;
725
726 ocelot_rmw_gix(ocelot, val, cpu_fwd_mcast,
727 ANA_PORT_CPU_FWD_CFG, port);
728}
729
730static int ocelot_port_attr_set(struct net_device *dev,
731 const struct switchdev_attr *attr,
732 struct switchdev_trans *trans)
733{
734 struct ocelot_port_private *priv = netdev_priv(dev);
735 struct ocelot *ocelot = priv->port.ocelot;
736 int port = priv->chip_port;
737 int err = 0;
738
739 switch (attr->id) {
740 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
741 ocelot_port_attr_stp_state_set(ocelot, port, trans,
742 attr->u.stp_state);
743 break;
744 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
745 ocelot_port_attr_ageing_set(ocelot, port, attr->u.ageing_time);
746 break;
747 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
748 ocelot_port_vlan_filtering(ocelot, port,
749 attr->u.vlan_filtering);
750 break;
751 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
752 ocelot_port_attr_mc_set(ocelot, port, !attr->u.mc_disabled);
753 break;
754 default:
755 err = -EOPNOTSUPP;
756 break;
757 }
758
759 return err;
760}
761
762static int ocelot_port_obj_add_vlan(struct net_device *dev,
763 const struct switchdev_obj_port_vlan *vlan,
764 struct switchdev_trans *trans)
765{
766 int ret;
767 u16 vid;
768
769 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
770 ret = ocelot_vlan_vid_add(dev, vid,
771 vlan->flags & BRIDGE_VLAN_INFO_PVID,
772 vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED);
773 if (ret)
774 return ret;
775 }
776
777 return 0;
778}
779
780static int ocelot_port_vlan_del_vlan(struct net_device *dev,
781 const struct switchdev_obj_port_vlan *vlan)
782{
783 int ret;
784 u16 vid;
785
786 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
787 ret = ocelot_vlan_vid_del(dev, vid);
788
789 if (ret)
790 return ret;
791 }
792
793 return 0;
794}
795
796static int ocelot_port_obj_add_mdb(struct net_device *dev,
797 const struct switchdev_obj_port_mdb *mdb,
798 struct switchdev_trans *trans)
799{
800 struct ocelot_port_private *priv = netdev_priv(dev);
801 struct ocelot_port *ocelot_port = &priv->port;
802 struct ocelot *ocelot = ocelot_port->ocelot;
803 int port = priv->chip_port;
804
805 if (switchdev_trans_ph_prepare(trans))
806 return 0;
807
808 return ocelot_port_mdb_add(ocelot, port, mdb);
809}
810
811static int ocelot_port_obj_del_mdb(struct net_device *dev,
812 const struct switchdev_obj_port_mdb *mdb)
813{
814 struct ocelot_port_private *priv = netdev_priv(dev);
815 struct ocelot_port *ocelot_port = &priv->port;
816 struct ocelot *ocelot = ocelot_port->ocelot;
817 int port = priv->chip_port;
818
819 return ocelot_port_mdb_del(ocelot, port, mdb);
820}
821
822static int ocelot_port_obj_add(struct net_device *dev,
823 const struct switchdev_obj *obj,
824 struct switchdev_trans *trans,
825 struct netlink_ext_ack *extack)
826{
827 int ret = 0;
828
829 switch (obj->id) {
830 case SWITCHDEV_OBJ_ID_PORT_VLAN:
831 ret = ocelot_port_obj_add_vlan(dev,
832 SWITCHDEV_OBJ_PORT_VLAN(obj),
833 trans);
834 break;
835 case SWITCHDEV_OBJ_ID_PORT_MDB:
836 ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
837 trans);
838 break;
839 default:
840 return -EOPNOTSUPP;
841 }
842
843 return ret;
844}
845
846static int ocelot_port_obj_del(struct net_device *dev,
847 const struct switchdev_obj *obj)
848{
849 int ret = 0;
850
851 switch (obj->id) {
852 case SWITCHDEV_OBJ_ID_PORT_VLAN:
853 ret = ocelot_port_vlan_del_vlan(dev,
854 SWITCHDEV_OBJ_PORT_VLAN(obj));
855 break;
856 case SWITCHDEV_OBJ_ID_PORT_MDB:
857 ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
858 break;
859 default:
860 return -EOPNOTSUPP;
861 }
862
863 return ret;
864}
865
866/* Checks if the net_device instance given to us originate from our driver. */
867static bool ocelot_netdevice_dev_check(const struct net_device *dev)
868{
869 return dev->netdev_ops == &ocelot_port_netdev_ops;
870}
871
872static int ocelot_netdevice_port_event(struct net_device *dev,
873 unsigned long event,
874 struct netdev_notifier_changeupper_info *info)
875{
876 struct ocelot_port_private *priv = netdev_priv(dev);
877 struct ocelot_port *ocelot_port = &priv->port;
878 struct ocelot *ocelot = ocelot_port->ocelot;
879 int port = priv->chip_port;
880 int err = 0;
881
882 switch (event) {
883 case NETDEV_CHANGEUPPER:
884 if (netif_is_bridge_master(info->upper_dev)) {
885 if (info->linking) {
886 err = ocelot_port_bridge_join(ocelot, port,
887 info->upper_dev);
888 } else {
889 err = ocelot_port_bridge_leave(ocelot, port,
890 info->upper_dev);
891 }
892 }
893 if (netif_is_lag_master(info->upper_dev)) {
894 if (info->linking)
895 err = ocelot_port_lag_join(ocelot, port,
896 info->upper_dev);
897 else
898 ocelot_port_lag_leave(ocelot, port,
899 info->upper_dev);
900 }
901 break;
902 default:
903 break;
904 }
905
906 return err;
907}
908
909static int ocelot_netdevice_event(struct notifier_block *unused,
910 unsigned long event, void *ptr)
911{
912 struct netdev_notifier_changeupper_info *info = ptr;
913 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
914 int ret = 0;
915
916 if (!ocelot_netdevice_dev_check(dev))
917 return 0;
918
919 if (event == NETDEV_PRECHANGEUPPER &&
920 netif_is_lag_master(info->upper_dev)) {
921 struct netdev_lag_upper_info *lag_upper_info = info->upper_info;
922 struct netlink_ext_ack *extack;
923
924 if (lag_upper_info &&
925 lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
926 extack = netdev_notifier_info_to_extack(&info->info);
927 NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");
928
929 ret = -EINVAL;
930 goto notify;
931 }
932 }
933
934 if (netif_is_lag_master(dev)) {
935 struct net_device *slave;
936 struct list_head *iter;
937
938 netdev_for_each_lower_dev(dev, slave, iter) {
939 ret = ocelot_netdevice_port_event(slave, event, info);
940 if (ret)
941 goto notify;
942 }
943 } else {
944 ret = ocelot_netdevice_port_event(dev, event, info);
945 }
946
947notify:
948 return notifier_from_errno(ret);
949}
950
951struct notifier_block ocelot_netdevice_nb __read_mostly = {
952 .notifier_call = ocelot_netdevice_event,
953};
954
955static int ocelot_switchdev_event(struct notifier_block *unused,
956 unsigned long event, void *ptr)
957{
958 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
959 int err;
960
961 switch (event) {
962 case SWITCHDEV_PORT_ATTR_SET:
963 err = switchdev_handle_port_attr_set(dev, ptr,
964 ocelot_netdevice_dev_check,
965 ocelot_port_attr_set);
966 return notifier_from_errno(err);
967 }
968
969 return NOTIFY_DONE;
970}
971
972struct notifier_block ocelot_switchdev_nb __read_mostly = {
973 .notifier_call = ocelot_switchdev_event,
974};
975
976static int ocelot_switchdev_blocking_event(struct notifier_block *unused,
977 unsigned long event, void *ptr)
978{
979 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
980 int err;
981
982 switch (event) {
983 /* Blocking events. */
984 case SWITCHDEV_PORT_OBJ_ADD:
985 err = switchdev_handle_port_obj_add(dev, ptr,
986 ocelot_netdevice_dev_check,
987 ocelot_port_obj_add);
988 return notifier_from_errno(err);
989 case SWITCHDEV_PORT_OBJ_DEL:
990 err = switchdev_handle_port_obj_del(dev, ptr,
991 ocelot_netdevice_dev_check,
992 ocelot_port_obj_del);
993 return notifier_from_errno(err);
994 case SWITCHDEV_PORT_ATTR_SET:
995 err = switchdev_handle_port_attr_set(dev, ptr,
996 ocelot_netdevice_dev_check,
997 ocelot_port_attr_set);
998 return notifier_from_errno(err);
999 }
1000
1001 return NOTIFY_DONE;
1002}
1003
1004struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = {
1005 .notifier_call = ocelot_switchdev_blocking_event,
1006};
1007
1008int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
1009 struct phy_device *phy)
1010{
1011 struct ocelot_port_private *priv;
1012 struct ocelot_port *ocelot_port;
1013 struct net_device *dev;
1014 int err;
1015
1016 dev = alloc_etherdev(sizeof(struct ocelot_port_private));
1017 if (!dev)
1018 return -ENOMEM;
1019 SET_NETDEV_DEV(dev, ocelot->dev);
1020 priv = netdev_priv(dev);
1021 priv->dev = dev;
1022 priv->phy = phy;
1023 priv->chip_port = port;
1024 ocelot_port = &priv->port;
1025 ocelot_port->ocelot = ocelot;
1026 ocelot_port->target = target;
1027 ocelot->ports[port] = ocelot_port;
1028
1029 dev->netdev_ops = &ocelot_port_netdev_ops;
1030 dev->ethtool_ops = &ocelot_ethtool_ops;
1031
1032 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXFCS |
1033 NETIF_F_HW_TC;
1034 dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
1035
1036 memcpy(dev->dev_addr, ocelot->base_mac, ETH_ALEN);
1037 dev->dev_addr[ETH_ALEN - 1] += port;
1038 ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, ocelot_port->pvid,
1039 ENTRYTYPE_LOCKED);
1040
1041 ocelot_init_port(ocelot, port);
1042
1043 err = register_netdev(dev);
1044 if (err) {
1045 dev_err(ocelot->dev, "register_netdev failed\n");
1046 free_netdev(dev);
1047 }
1048
1049 return err;
1050}