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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 Semiconductors
9 */
10
11#include <linux/if_bridge.h>
12#include <net/pkt_cls.h>
13#include "ocelot.h"
14#include "ocelot_vcap.h"
15
16static struct ocelot *devlink_port_to_ocelot(struct devlink_port *dlp)
17{
18 return devlink_priv(dlp->devlink);
19}
20
21static int devlink_port_to_port(struct devlink_port *dlp)
22{
23 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
24
25 return dlp - ocelot->devlink_ports;
26}
27
28static int ocelot_devlink_sb_pool_get(struct devlink *dl,
29 unsigned int sb_index, u16 pool_index,
30 struct devlink_sb_pool_info *pool_info)
31{
32 struct ocelot *ocelot = devlink_priv(dl);
33
34 return ocelot_sb_pool_get(ocelot, sb_index, pool_index, pool_info);
35}
36
37static int ocelot_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index,
38 u16 pool_index, u32 size,
39 enum devlink_sb_threshold_type threshold_type,
40 struct netlink_ext_ack *extack)
41{
42 struct ocelot *ocelot = devlink_priv(dl);
43
44 return ocelot_sb_pool_set(ocelot, sb_index, pool_index, size,
45 threshold_type, extack);
46}
47
48static int ocelot_devlink_sb_port_pool_get(struct devlink_port *dlp,
49 unsigned int sb_index, u16 pool_index,
50 u32 *p_threshold)
51{
52 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
53 int port = devlink_port_to_port(dlp);
54
55 return ocelot_sb_port_pool_get(ocelot, port, sb_index, pool_index,
56 p_threshold);
57}
58
59static int ocelot_devlink_sb_port_pool_set(struct devlink_port *dlp,
60 unsigned int sb_index, u16 pool_index,
61 u32 threshold,
62 struct netlink_ext_ack *extack)
63{
64 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
65 int port = devlink_port_to_port(dlp);
66
67 return ocelot_sb_port_pool_set(ocelot, port, sb_index, pool_index,
68 threshold, extack);
69}
70
71static int
72ocelot_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp,
73 unsigned int sb_index, u16 tc_index,
74 enum devlink_sb_pool_type pool_type,
75 u16 *p_pool_index, u32 *p_threshold)
76{
77 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
78 int port = devlink_port_to_port(dlp);
79
80 return ocelot_sb_tc_pool_bind_get(ocelot, port, sb_index, tc_index,
81 pool_type, p_pool_index,
82 p_threshold);
83}
84
85static int
86ocelot_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp,
87 unsigned int sb_index, u16 tc_index,
88 enum devlink_sb_pool_type pool_type,
89 u16 pool_index, u32 threshold,
90 struct netlink_ext_ack *extack)
91{
92 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
93 int port = devlink_port_to_port(dlp);
94
95 return ocelot_sb_tc_pool_bind_set(ocelot, port, sb_index, tc_index,
96 pool_type, pool_index, threshold,
97 extack);
98}
99
100static int ocelot_devlink_sb_occ_snapshot(struct devlink *dl,
101 unsigned int sb_index)
102{
103 struct ocelot *ocelot = devlink_priv(dl);
104
105 return ocelot_sb_occ_snapshot(ocelot, sb_index);
106}
107
108static int ocelot_devlink_sb_occ_max_clear(struct devlink *dl,
109 unsigned int sb_index)
110{
111 struct ocelot *ocelot = devlink_priv(dl);
112
113 return ocelot_sb_occ_max_clear(ocelot, sb_index);
114}
115
116static int ocelot_devlink_sb_occ_port_pool_get(struct devlink_port *dlp,
117 unsigned int sb_index,
118 u16 pool_index, u32 *p_cur,
119 u32 *p_max)
120{
121 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
122 int port = devlink_port_to_port(dlp);
123
124 return ocelot_sb_occ_port_pool_get(ocelot, port, sb_index, pool_index,
125 p_cur, p_max);
126}
127
128static int
129ocelot_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp,
130 unsigned int sb_index, u16 tc_index,
131 enum devlink_sb_pool_type pool_type,
132 u32 *p_cur, u32 *p_max)
133{
134 struct ocelot *ocelot = devlink_port_to_ocelot(dlp);
135 int port = devlink_port_to_port(dlp);
136
137 return ocelot_sb_occ_tc_port_bind_get(ocelot, port, sb_index,
138 tc_index, pool_type,
139 p_cur, p_max);
140}
141
142const struct devlink_ops ocelot_devlink_ops = {
143 .sb_pool_get = ocelot_devlink_sb_pool_get,
144 .sb_pool_set = ocelot_devlink_sb_pool_set,
145 .sb_port_pool_get = ocelot_devlink_sb_port_pool_get,
146 .sb_port_pool_set = ocelot_devlink_sb_port_pool_set,
147 .sb_tc_pool_bind_get = ocelot_devlink_sb_tc_pool_bind_get,
148 .sb_tc_pool_bind_set = ocelot_devlink_sb_tc_pool_bind_set,
149 .sb_occ_snapshot = ocelot_devlink_sb_occ_snapshot,
150 .sb_occ_max_clear = ocelot_devlink_sb_occ_max_clear,
151 .sb_occ_port_pool_get = ocelot_devlink_sb_occ_port_pool_get,
152 .sb_occ_tc_port_bind_get = ocelot_devlink_sb_occ_tc_port_bind_get,
153};
154
155int ocelot_port_devlink_init(struct ocelot *ocelot, int port,
156 enum devlink_port_flavour flavour)
157{
158 struct devlink_port *dlp = &ocelot->devlink_ports[port];
159 int id_len = sizeof(ocelot->base_mac);
160 struct devlink *dl = ocelot->devlink;
161 struct devlink_port_attrs attrs = {};
162
163 memcpy(attrs.switch_id.id, &ocelot->base_mac, id_len);
164 attrs.switch_id.id_len = id_len;
165 attrs.phys.port_number = port;
166 attrs.flavour = flavour;
167
168 devlink_port_attrs_set(dlp, &attrs);
169
170 return devlink_port_register(dl, dlp, port);
171}
172
173void ocelot_port_devlink_teardown(struct ocelot *ocelot, int port)
174{
175 struct devlink_port *dlp = &ocelot->devlink_ports[port];
176
177 devlink_port_unregister(dlp);
178}
179
180static struct devlink_port *ocelot_get_devlink_port(struct net_device *dev)
181{
182 struct ocelot_port_private *priv = netdev_priv(dev);
183 struct ocelot *ocelot = priv->port.ocelot;
184 int port = priv->chip_port;
185
186 return &ocelot->devlink_ports[port];
187}
188
189int ocelot_setup_tc_cls_flower(struct ocelot_port_private *priv,
190 struct flow_cls_offload *f,
191 bool ingress)
192{
193 struct ocelot *ocelot = priv->port.ocelot;
194 int port = priv->chip_port;
195
196 if (!ingress)
197 return -EOPNOTSUPP;
198
199 switch (f->command) {
200 case FLOW_CLS_REPLACE:
201 return ocelot_cls_flower_replace(ocelot, port, f, ingress);
202 case FLOW_CLS_DESTROY:
203 return ocelot_cls_flower_destroy(ocelot, port, f, ingress);
204 case FLOW_CLS_STATS:
205 return ocelot_cls_flower_stats(ocelot, port, f, ingress);
206 default:
207 return -EOPNOTSUPP;
208 }
209}
210
211static int ocelot_setup_tc_cls_matchall(struct ocelot_port_private *priv,
212 struct tc_cls_matchall_offload *f,
213 bool ingress)
214{
215 struct netlink_ext_ack *extack = f->common.extack;
216 struct ocelot *ocelot = priv->port.ocelot;
217 struct ocelot_policer pol = { 0 };
218 struct flow_action_entry *action;
219 int port = priv->chip_port;
220 int err;
221
222 if (!ingress) {
223 NL_SET_ERR_MSG_MOD(extack, "Only ingress is supported");
224 return -EOPNOTSUPP;
225 }
226
227 switch (f->command) {
228 case TC_CLSMATCHALL_REPLACE:
229 if (!flow_offload_has_one_action(&f->rule->action)) {
230 NL_SET_ERR_MSG_MOD(extack,
231 "Only one action is supported");
232 return -EOPNOTSUPP;
233 }
234
235 if (priv->tc.block_shared) {
236 NL_SET_ERR_MSG_MOD(extack,
237 "Rate limit is not supported on shared blocks");
238 return -EOPNOTSUPP;
239 }
240
241 action = &f->rule->action.entries[0];
242
243 if (action->id != FLOW_ACTION_POLICE) {
244 NL_SET_ERR_MSG_MOD(extack, "Unsupported action");
245 return -EOPNOTSUPP;
246 }
247
248 if (priv->tc.police_id && priv->tc.police_id != f->cookie) {
249 NL_SET_ERR_MSG_MOD(extack,
250 "Only one policer per port is supported");
251 return -EEXIST;
252 }
253
254 if (action->police.rate_pkt_ps) {
255 NL_SET_ERR_MSG_MOD(extack,
256 "QoS offload not support packets per second");
257 return -EOPNOTSUPP;
258 }
259
260 pol.rate = (u32)div_u64(action->police.rate_bytes_ps, 1000) * 8;
261 pol.burst = action->police.burst;
262
263 err = ocelot_port_policer_add(ocelot, port, &pol);
264 if (err) {
265 NL_SET_ERR_MSG_MOD(extack, "Could not add policer");
266 return err;
267 }
268
269 priv->tc.police_id = f->cookie;
270 priv->tc.offload_cnt++;
271 return 0;
272 case TC_CLSMATCHALL_DESTROY:
273 if (priv->tc.police_id != f->cookie)
274 return -ENOENT;
275
276 err = ocelot_port_policer_del(ocelot, port);
277 if (err) {
278 NL_SET_ERR_MSG_MOD(extack,
279 "Could not delete policer");
280 return err;
281 }
282 priv->tc.police_id = 0;
283 priv->tc.offload_cnt--;
284 return 0;
285 case TC_CLSMATCHALL_STATS:
286 default:
287 return -EOPNOTSUPP;
288 }
289}
290
291static int ocelot_setup_tc_block_cb(enum tc_setup_type type,
292 void *type_data,
293 void *cb_priv, bool ingress)
294{
295 struct ocelot_port_private *priv = cb_priv;
296
297 if (!tc_cls_can_offload_and_chain0(priv->dev, type_data))
298 return -EOPNOTSUPP;
299
300 switch (type) {
301 case TC_SETUP_CLSMATCHALL:
302 return ocelot_setup_tc_cls_matchall(priv, type_data, ingress);
303 case TC_SETUP_CLSFLOWER:
304 return ocelot_setup_tc_cls_flower(priv, type_data, ingress);
305 default:
306 return -EOPNOTSUPP;
307 }
308}
309
310static int ocelot_setup_tc_block_cb_ig(enum tc_setup_type type,
311 void *type_data,
312 void *cb_priv)
313{
314 return ocelot_setup_tc_block_cb(type, type_data,
315 cb_priv, true);
316}
317
318static int ocelot_setup_tc_block_cb_eg(enum tc_setup_type type,
319 void *type_data,
320 void *cb_priv)
321{
322 return ocelot_setup_tc_block_cb(type, type_data,
323 cb_priv, false);
324}
325
326static LIST_HEAD(ocelot_block_cb_list);
327
328static int ocelot_setup_tc_block(struct ocelot_port_private *priv,
329 struct flow_block_offload *f)
330{
331 struct flow_block_cb *block_cb;
332 flow_setup_cb_t *cb;
333
334 if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS) {
335 cb = ocelot_setup_tc_block_cb_ig;
336 priv->tc.block_shared = f->block_shared;
337 } else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS) {
338 cb = ocelot_setup_tc_block_cb_eg;
339 } else {
340 return -EOPNOTSUPP;
341 }
342
343 f->driver_block_list = &ocelot_block_cb_list;
344
345 switch (f->command) {
346 case FLOW_BLOCK_BIND:
347 if (flow_block_cb_is_busy(cb, priv, &ocelot_block_cb_list))
348 return -EBUSY;
349
350 block_cb = flow_block_cb_alloc(cb, priv, priv, NULL);
351 if (IS_ERR(block_cb))
352 return PTR_ERR(block_cb);
353
354 flow_block_cb_add(block_cb, f);
355 list_add_tail(&block_cb->driver_list, f->driver_block_list);
356 return 0;
357 case FLOW_BLOCK_UNBIND:
358 block_cb = flow_block_cb_lookup(f->block, cb, priv);
359 if (!block_cb)
360 return -ENOENT;
361
362 flow_block_cb_remove(block_cb, f);
363 list_del(&block_cb->driver_list);
364 return 0;
365 default:
366 return -EOPNOTSUPP;
367 }
368}
369
370static int ocelot_setup_tc(struct net_device *dev, enum tc_setup_type type,
371 void *type_data)
372{
373 struct ocelot_port_private *priv = netdev_priv(dev);
374
375 switch (type) {
376 case TC_SETUP_BLOCK:
377 return ocelot_setup_tc_block(priv, type_data);
378 default:
379 return -EOPNOTSUPP;
380 }
381 return 0;
382}
383
384static void ocelot_port_adjust_link(struct net_device *dev)
385{
386 struct ocelot_port_private *priv = netdev_priv(dev);
387 struct ocelot *ocelot = priv->port.ocelot;
388 int port = priv->chip_port;
389
390 ocelot_adjust_link(ocelot, port, dev->phydev);
391}
392
393static int ocelot_vlan_vid_prepare(struct net_device *dev, u16 vid, bool pvid,
394 bool untagged)
395{
396 struct ocelot_port_private *priv = netdev_priv(dev);
397 struct ocelot_port *ocelot_port = &priv->port;
398 struct ocelot *ocelot = ocelot_port->ocelot;
399 int port = priv->chip_port;
400
401 return ocelot_vlan_prepare(ocelot, port, vid, pvid, untagged);
402}
403
404static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid,
405 bool untagged)
406{
407 struct ocelot_port_private *priv = netdev_priv(dev);
408 struct ocelot_port *ocelot_port = &priv->port;
409 struct ocelot *ocelot = ocelot_port->ocelot;
410 int port = priv->chip_port;
411 int ret;
412
413 ret = ocelot_vlan_add(ocelot, port, vid, pvid, untagged);
414 if (ret)
415 return ret;
416
417 /* Add the port MAC address to with the right VLAN information */
418 ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, vid,
419 ENTRYTYPE_LOCKED);
420
421 return 0;
422}
423
424static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid)
425{
426 struct ocelot_port_private *priv = netdev_priv(dev);
427 struct ocelot *ocelot = priv->port.ocelot;
428 int port = priv->chip_port;
429 int ret;
430
431 /* 8021q removes VID 0 on module unload for all interfaces
432 * with VLAN filtering feature. We need to keep it to receive
433 * untagged traffic.
434 */
435 if (vid == 0)
436 return 0;
437
438 ret = ocelot_vlan_del(ocelot, port, vid);
439 if (ret)
440 return ret;
441
442 /* Del the port MAC address to with the right VLAN information */
443 ocelot_mact_forget(ocelot, dev->dev_addr, vid);
444
445 return 0;
446}
447
448static int ocelot_port_open(struct net_device *dev)
449{
450 struct ocelot_port_private *priv = netdev_priv(dev);
451 struct ocelot_port *ocelot_port = &priv->port;
452 struct ocelot *ocelot = ocelot_port->ocelot;
453 int port = priv->chip_port;
454 int err;
455
456 if (priv->serdes) {
457 err = phy_set_mode_ext(priv->serdes, PHY_MODE_ETHERNET,
458 ocelot_port->phy_mode);
459 if (err) {
460 netdev_err(dev, "Could not set mode of SerDes\n");
461 return err;
462 }
463 }
464
465 err = phy_connect_direct(dev, priv->phy, &ocelot_port_adjust_link,
466 ocelot_port->phy_mode);
467 if (err) {
468 netdev_err(dev, "Could not attach to PHY\n");
469 return err;
470 }
471
472 dev->phydev = priv->phy;
473
474 phy_attached_info(priv->phy);
475 phy_start(priv->phy);
476
477 ocelot_port_enable(ocelot, port, priv->phy);
478
479 return 0;
480}
481
482static int ocelot_port_stop(struct net_device *dev)
483{
484 struct ocelot_port_private *priv = netdev_priv(dev);
485 struct ocelot *ocelot = priv->port.ocelot;
486 int port = priv->chip_port;
487
488 phy_disconnect(priv->phy);
489
490 dev->phydev = NULL;
491
492 ocelot_port_disable(ocelot, port);
493
494 return 0;
495}
496
497static netdev_tx_t ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev)
498{
499 struct ocelot_port_private *priv = netdev_priv(dev);
500 struct ocelot_port *ocelot_port = &priv->port;
501 struct ocelot *ocelot = ocelot_port->ocelot;
502 int port = priv->chip_port;
503 u32 rew_op = 0;
504
505 if (!ocelot_can_inject(ocelot, 0))
506 return NETDEV_TX_BUSY;
507
508 /* Check if timestamping is needed */
509 if (ocelot->ptp && (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) {
510 struct sk_buff *clone = NULL;
511
512 if (ocelot_port_txtstamp_request(ocelot, port, skb, &clone)) {
513 kfree_skb(skb);
514 return NETDEV_TX_OK;
515 }
516
517 if (clone)
518 OCELOT_SKB_CB(skb)->clone = clone;
519
520 rew_op = ocelot_ptp_rew_op(skb);
521 }
522
523 ocelot_port_inject_frame(ocelot, port, 0, rew_op, skb);
524
525 kfree_skb(skb);
526
527 return NETDEV_TX_OK;
528}
529
530enum ocelot_action_type {
531 OCELOT_MACT_LEARN,
532 OCELOT_MACT_FORGET,
533};
534
535struct ocelot_mact_work_ctx {
536 struct work_struct work;
537 struct ocelot *ocelot;
538 enum ocelot_action_type type;
539 union {
540 /* OCELOT_MACT_LEARN */
541 struct {
542 unsigned char addr[ETH_ALEN];
543 u16 vid;
544 enum macaccess_entry_type entry_type;
545 int pgid;
546 } learn;
547 /* OCELOT_MACT_FORGET */
548 struct {
549 unsigned char addr[ETH_ALEN];
550 u16 vid;
551 } forget;
552 };
553};
554
555#define ocelot_work_to_ctx(x) \
556 container_of((x), struct ocelot_mact_work_ctx, work)
557
558static void ocelot_mact_work(struct work_struct *work)
559{
560 struct ocelot_mact_work_ctx *w = ocelot_work_to_ctx(work);
561 struct ocelot *ocelot = w->ocelot;
562
563 switch (w->type) {
564 case OCELOT_MACT_LEARN:
565 ocelot_mact_learn(ocelot, w->learn.pgid, w->learn.addr,
566 w->learn.vid, w->learn.entry_type);
567 break;
568 case OCELOT_MACT_FORGET:
569 ocelot_mact_forget(ocelot, w->forget.addr, w->forget.vid);
570 break;
571 default:
572 break;
573 }
574
575 kfree(w);
576}
577
578static int ocelot_enqueue_mact_action(struct ocelot *ocelot,
579 const struct ocelot_mact_work_ctx *ctx)
580{
581 struct ocelot_mact_work_ctx *w = kmemdup(ctx, sizeof(*w), GFP_ATOMIC);
582
583 if (!w)
584 return -ENOMEM;
585
586 w->ocelot = ocelot;
587 INIT_WORK(&w->work, ocelot_mact_work);
588 queue_work(ocelot->owq, &w->work);
589
590 return 0;
591}
592
593static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr)
594{
595 struct ocelot_port_private *priv = netdev_priv(dev);
596 struct ocelot_port *ocelot_port = &priv->port;
597 struct ocelot *ocelot = ocelot_port->ocelot;
598 struct ocelot_mact_work_ctx w;
599
600 ether_addr_copy(w.forget.addr, addr);
601 w.forget.vid = ocelot_port->pvid_vlan.vid;
602 w.type = OCELOT_MACT_FORGET;
603
604 return ocelot_enqueue_mact_action(ocelot, &w);
605}
606
607static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr)
608{
609 struct ocelot_port_private *priv = netdev_priv(dev);
610 struct ocelot_port *ocelot_port = &priv->port;
611 struct ocelot *ocelot = ocelot_port->ocelot;
612 struct ocelot_mact_work_ctx w;
613
614 ether_addr_copy(w.learn.addr, addr);
615 w.learn.vid = ocelot_port->pvid_vlan.vid;
616 w.learn.pgid = PGID_CPU;
617 w.learn.entry_type = ENTRYTYPE_LOCKED;
618 w.type = OCELOT_MACT_LEARN;
619
620 return ocelot_enqueue_mact_action(ocelot, &w);
621}
622
623static void ocelot_set_rx_mode(struct net_device *dev)
624{
625 struct ocelot_port_private *priv = netdev_priv(dev);
626 struct ocelot *ocelot = priv->port.ocelot;
627 u32 val;
628 int i;
629
630 /* This doesn't handle promiscuous mode because the bridge core is
631 * setting IFF_PROMISC on all slave interfaces and all frames would be
632 * forwarded to the CPU port.
633 */
634 val = GENMASK(ocelot->num_phys_ports - 1, 0);
635 for_each_nonreserved_multicast_dest_pgid(ocelot, i)
636 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
637
638 __dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync);
639}
640
641static int ocelot_port_set_mac_address(struct net_device *dev, void *p)
642{
643 struct ocelot_port_private *priv = netdev_priv(dev);
644 struct ocelot_port *ocelot_port = &priv->port;
645 struct ocelot *ocelot = ocelot_port->ocelot;
646 const struct sockaddr *addr = p;
647
648 /* Learn the new net device MAC address in the mac table. */
649 ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data,
650 ocelot_port->pvid_vlan.vid, ENTRYTYPE_LOCKED);
651 /* Then forget the previous one. */
652 ocelot_mact_forget(ocelot, dev->dev_addr, ocelot_port->pvid_vlan.vid);
653
654 ether_addr_copy(dev->dev_addr, addr->sa_data);
655 return 0;
656}
657
658static void ocelot_get_stats64(struct net_device *dev,
659 struct rtnl_link_stats64 *stats)
660{
661 struct ocelot_port_private *priv = netdev_priv(dev);
662 struct ocelot *ocelot = priv->port.ocelot;
663 int port = priv->chip_port;
664
665 /* Configure the port to read the stats from */
666 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port),
667 SYS_STAT_CFG);
668
669 /* Get Rx stats */
670 stats->rx_bytes = ocelot_read(ocelot, SYS_COUNT_RX_OCTETS);
671 stats->rx_packets = ocelot_read(ocelot, SYS_COUNT_RX_SHORTS) +
672 ocelot_read(ocelot, SYS_COUNT_RX_FRAGMENTS) +
673 ocelot_read(ocelot, SYS_COUNT_RX_JABBERS) +
674 ocelot_read(ocelot, SYS_COUNT_RX_LONGS) +
675 ocelot_read(ocelot, SYS_COUNT_RX_64) +
676 ocelot_read(ocelot, SYS_COUNT_RX_65_127) +
677 ocelot_read(ocelot, SYS_COUNT_RX_128_255) +
678 ocelot_read(ocelot, SYS_COUNT_RX_256_1023) +
679 ocelot_read(ocelot, SYS_COUNT_RX_1024_1526) +
680 ocelot_read(ocelot, SYS_COUNT_RX_1527_MAX);
681 stats->multicast = ocelot_read(ocelot, SYS_COUNT_RX_MULTICAST);
682 stats->rx_dropped = dev->stats.rx_dropped;
683
684 /* Get Tx stats */
685 stats->tx_bytes = ocelot_read(ocelot, SYS_COUNT_TX_OCTETS);
686 stats->tx_packets = ocelot_read(ocelot, SYS_COUNT_TX_64) +
687 ocelot_read(ocelot, SYS_COUNT_TX_65_127) +
688 ocelot_read(ocelot, SYS_COUNT_TX_128_511) +
689 ocelot_read(ocelot, SYS_COUNT_TX_512_1023) +
690 ocelot_read(ocelot, SYS_COUNT_TX_1024_1526) +
691 ocelot_read(ocelot, SYS_COUNT_TX_1527_MAX);
692 stats->tx_dropped = ocelot_read(ocelot, SYS_COUNT_TX_DROPS) +
693 ocelot_read(ocelot, SYS_COUNT_TX_AGING);
694 stats->collisions = ocelot_read(ocelot, SYS_COUNT_TX_COLLISION);
695}
696
697static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
698 struct net_device *dev,
699 const unsigned char *addr,
700 u16 vid, u16 flags,
701 struct netlink_ext_ack *extack)
702{
703 struct ocelot_port_private *priv = netdev_priv(dev);
704 struct ocelot *ocelot = priv->port.ocelot;
705 int port = priv->chip_port;
706
707 return ocelot_fdb_add(ocelot, port, addr, vid);
708}
709
710static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
711 struct net_device *dev,
712 const unsigned char *addr, u16 vid)
713{
714 struct ocelot_port_private *priv = netdev_priv(dev);
715 struct ocelot *ocelot = priv->port.ocelot;
716 int port = priv->chip_port;
717
718 return ocelot_fdb_del(ocelot, port, addr, vid);
719}
720
721static int ocelot_port_fdb_dump(struct sk_buff *skb,
722 struct netlink_callback *cb,
723 struct net_device *dev,
724 struct net_device *filter_dev, int *idx)
725{
726 struct ocelot_port_private *priv = netdev_priv(dev);
727 struct ocelot *ocelot = priv->port.ocelot;
728 struct ocelot_dump_ctx dump = {
729 .dev = dev,
730 .skb = skb,
731 .cb = cb,
732 .idx = *idx,
733 };
734 int port = priv->chip_port;
735 int ret;
736
737 ret = ocelot_fdb_dump(ocelot, port, ocelot_port_fdb_do_dump, &dump);
738
739 *idx = dump.idx;
740
741 return ret;
742}
743
744static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
745 u16 vid)
746{
747 return ocelot_vlan_vid_add(dev, vid, false, false);
748}
749
750static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
751 u16 vid)
752{
753 return ocelot_vlan_vid_del(dev, vid);
754}
755
756static void ocelot_vlan_mode(struct ocelot *ocelot, int port,
757 netdev_features_t features)
758{
759 u32 val;
760
761 /* Filtering */
762 val = ocelot_read(ocelot, ANA_VLANMASK);
763 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
764 val |= BIT(port);
765 else
766 val &= ~BIT(port);
767 ocelot_write(ocelot, val, ANA_VLANMASK);
768}
769
770static int ocelot_set_features(struct net_device *dev,
771 netdev_features_t features)
772{
773 netdev_features_t changed = dev->features ^ features;
774 struct ocelot_port_private *priv = netdev_priv(dev);
775 struct ocelot *ocelot = priv->port.ocelot;
776 int port = priv->chip_port;
777
778 if ((dev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) &&
779 priv->tc.offload_cnt) {
780 netdev_err(dev,
781 "Cannot disable HW TC offload while offloads active\n");
782 return -EBUSY;
783 }
784
785 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER)
786 ocelot_vlan_mode(ocelot, port, features);
787
788 return 0;
789}
790
791static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
792{
793 struct ocelot_port_private *priv = netdev_priv(dev);
794 struct ocelot *ocelot = priv->port.ocelot;
795 int port = priv->chip_port;
796
797 /* If the attached PHY device isn't capable of timestamping operations,
798 * use our own (when possible).
799 */
800 if (!phy_has_hwtstamp(dev->phydev) && ocelot->ptp) {
801 switch (cmd) {
802 case SIOCSHWTSTAMP:
803 return ocelot_hwstamp_set(ocelot, port, ifr);
804 case SIOCGHWTSTAMP:
805 return ocelot_hwstamp_get(ocelot, port, ifr);
806 }
807 }
808
809 return phy_mii_ioctl(dev->phydev, ifr, cmd);
810}
811
812static const struct net_device_ops ocelot_port_netdev_ops = {
813 .ndo_open = ocelot_port_open,
814 .ndo_stop = ocelot_port_stop,
815 .ndo_start_xmit = ocelot_port_xmit,
816 .ndo_set_rx_mode = ocelot_set_rx_mode,
817 .ndo_set_mac_address = ocelot_port_set_mac_address,
818 .ndo_get_stats64 = ocelot_get_stats64,
819 .ndo_fdb_add = ocelot_port_fdb_add,
820 .ndo_fdb_del = ocelot_port_fdb_del,
821 .ndo_fdb_dump = ocelot_port_fdb_dump,
822 .ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid,
823 .ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid,
824 .ndo_set_features = ocelot_set_features,
825 .ndo_setup_tc = ocelot_setup_tc,
826 .ndo_do_ioctl = ocelot_ioctl,
827 .ndo_get_devlink_port = ocelot_get_devlink_port,
828};
829
830struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port)
831{
832 struct ocelot_port *ocelot_port = ocelot->ports[port];
833 struct ocelot_port_private *priv;
834
835 if (!ocelot_port)
836 return NULL;
837
838 priv = container_of(ocelot_port, struct ocelot_port_private, port);
839
840 return priv->dev;
841}
842
843/* Checks if the net_device instance given to us originates from our driver */
844static bool ocelot_netdevice_dev_check(const struct net_device *dev)
845{
846 return dev->netdev_ops == &ocelot_port_netdev_ops;
847}
848
849int ocelot_netdev_to_port(struct net_device *dev)
850{
851 struct ocelot_port_private *priv;
852
853 if (!dev || !ocelot_netdevice_dev_check(dev))
854 return -EINVAL;
855
856 priv = netdev_priv(dev);
857
858 return priv->chip_port;
859}
860
861static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
862 u8 *data)
863{
864 struct ocelot_port_private *priv = netdev_priv(netdev);
865 struct ocelot *ocelot = priv->port.ocelot;
866 int port = priv->chip_port;
867
868 ocelot_get_strings(ocelot, port, sset, data);
869}
870
871static void ocelot_port_get_ethtool_stats(struct net_device *dev,
872 struct ethtool_stats *stats,
873 u64 *data)
874{
875 struct ocelot_port_private *priv = netdev_priv(dev);
876 struct ocelot *ocelot = priv->port.ocelot;
877 int port = priv->chip_port;
878
879 ocelot_get_ethtool_stats(ocelot, port, data);
880}
881
882static int ocelot_port_get_sset_count(struct net_device *dev, int sset)
883{
884 struct ocelot_port_private *priv = netdev_priv(dev);
885 struct ocelot *ocelot = priv->port.ocelot;
886 int port = priv->chip_port;
887
888 return ocelot_get_sset_count(ocelot, port, sset);
889}
890
891static int ocelot_port_get_ts_info(struct net_device *dev,
892 struct ethtool_ts_info *info)
893{
894 struct ocelot_port_private *priv = netdev_priv(dev);
895 struct ocelot *ocelot = priv->port.ocelot;
896 int port = priv->chip_port;
897
898 if (!ocelot->ptp)
899 return ethtool_op_get_ts_info(dev, info);
900
901 return ocelot_get_ts_info(ocelot, port, info);
902}
903
904static const struct ethtool_ops ocelot_ethtool_ops = {
905 .get_strings = ocelot_port_get_strings,
906 .get_ethtool_stats = ocelot_port_get_ethtool_stats,
907 .get_sset_count = ocelot_port_get_sset_count,
908 .get_link_ksettings = phy_ethtool_get_link_ksettings,
909 .set_link_ksettings = phy_ethtool_set_link_ksettings,
910 .get_ts_info = ocelot_port_get_ts_info,
911};
912
913static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port,
914 u8 state)
915{
916 ocelot_bridge_stp_state_set(ocelot, port, state);
917}
918
919static void ocelot_port_attr_ageing_set(struct ocelot *ocelot, int port,
920 unsigned long ageing_clock_t)
921{
922 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
923 u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
924
925 ocelot_set_ageing_time(ocelot, ageing_time);
926}
927
928static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc)
929{
930 u32 cpu_fwd_mcast = ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA |
931 ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA |
932 ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA;
933 u32 val = 0;
934
935 if (mc)
936 val = cpu_fwd_mcast;
937
938 ocelot_rmw_gix(ocelot, val, cpu_fwd_mcast,
939 ANA_PORT_CPU_FWD_CFG, port);
940}
941
942static int ocelot_port_attr_set(struct net_device *dev, const void *ctx,
943 const struct switchdev_attr *attr,
944 struct netlink_ext_ack *extack)
945{
946 struct ocelot_port_private *priv = netdev_priv(dev);
947 struct ocelot *ocelot = priv->port.ocelot;
948 int port = priv->chip_port;
949 int err = 0;
950
951 if (ctx && ctx != priv)
952 return 0;
953
954 switch (attr->id) {
955 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
956 ocelot_port_attr_stp_state_set(ocelot, port, attr->u.stp_state);
957 break;
958 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
959 ocelot_port_attr_ageing_set(ocelot, port, attr->u.ageing_time);
960 break;
961 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
962 ocelot_port_vlan_filtering(ocelot, port, attr->u.vlan_filtering);
963 break;
964 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
965 ocelot_port_attr_mc_set(ocelot, port, !attr->u.mc_disabled);
966 break;
967 case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
968 err = ocelot_port_pre_bridge_flags(ocelot, port,
969 attr->u.brport_flags);
970 break;
971 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
972 ocelot_port_bridge_flags(ocelot, port, attr->u.brport_flags);
973 break;
974 default:
975 err = -EOPNOTSUPP;
976 break;
977 }
978
979 return err;
980}
981
982static int ocelot_port_obj_add_vlan(struct net_device *dev,
983 const struct switchdev_obj_port_vlan *vlan)
984{
985 bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
986 bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
987 int ret;
988
989 ret = ocelot_vlan_vid_prepare(dev, vlan->vid, pvid, untagged);
990 if (ret)
991 return ret;
992
993 return ocelot_vlan_vid_add(dev, vlan->vid, pvid, untagged);
994}
995
996static int ocelot_port_obj_add_mdb(struct net_device *dev,
997 const struct switchdev_obj_port_mdb *mdb)
998{
999 struct ocelot_port_private *priv = netdev_priv(dev);
1000 struct ocelot_port *ocelot_port = &priv->port;
1001 struct ocelot *ocelot = ocelot_port->ocelot;
1002 int port = priv->chip_port;
1003
1004 return ocelot_port_mdb_add(ocelot, port, mdb);
1005}
1006
1007static int ocelot_port_obj_del_mdb(struct net_device *dev,
1008 const struct switchdev_obj_port_mdb *mdb)
1009{
1010 struct ocelot_port_private *priv = netdev_priv(dev);
1011 struct ocelot_port *ocelot_port = &priv->port;
1012 struct ocelot *ocelot = ocelot_port->ocelot;
1013 int port = priv->chip_port;
1014
1015 return ocelot_port_mdb_del(ocelot, port, mdb);
1016}
1017
1018static int ocelot_port_obj_mrp_add(struct net_device *dev,
1019 const struct switchdev_obj_mrp *mrp)
1020{
1021 struct ocelot_port_private *priv = netdev_priv(dev);
1022 struct ocelot_port *ocelot_port = &priv->port;
1023 struct ocelot *ocelot = ocelot_port->ocelot;
1024 int port = priv->chip_port;
1025
1026 return ocelot_mrp_add(ocelot, port, mrp);
1027}
1028
1029static int ocelot_port_obj_mrp_del(struct net_device *dev,
1030 const struct switchdev_obj_mrp *mrp)
1031{
1032 struct ocelot_port_private *priv = netdev_priv(dev);
1033 struct ocelot_port *ocelot_port = &priv->port;
1034 struct ocelot *ocelot = ocelot_port->ocelot;
1035 int port = priv->chip_port;
1036
1037 return ocelot_mrp_del(ocelot, port, mrp);
1038}
1039
1040static int
1041ocelot_port_obj_mrp_add_ring_role(struct net_device *dev,
1042 const struct switchdev_obj_ring_role_mrp *mrp)
1043{
1044 struct ocelot_port_private *priv = netdev_priv(dev);
1045 struct ocelot_port *ocelot_port = &priv->port;
1046 struct ocelot *ocelot = ocelot_port->ocelot;
1047 int port = priv->chip_port;
1048
1049 return ocelot_mrp_add_ring_role(ocelot, port, mrp);
1050}
1051
1052static int
1053ocelot_port_obj_mrp_del_ring_role(struct net_device *dev,
1054 const struct switchdev_obj_ring_role_mrp *mrp)
1055{
1056 struct ocelot_port_private *priv = netdev_priv(dev);
1057 struct ocelot_port *ocelot_port = &priv->port;
1058 struct ocelot *ocelot = ocelot_port->ocelot;
1059 int port = priv->chip_port;
1060
1061 return ocelot_mrp_del_ring_role(ocelot, port, mrp);
1062}
1063
1064static int ocelot_port_obj_add(struct net_device *dev, const void *ctx,
1065 const struct switchdev_obj *obj,
1066 struct netlink_ext_ack *extack)
1067{
1068 struct ocelot_port_private *priv = netdev_priv(dev);
1069 int ret = 0;
1070
1071 if (ctx && ctx != priv)
1072 return 0;
1073
1074 switch (obj->id) {
1075 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1076 ret = ocelot_port_obj_add_vlan(dev,
1077 SWITCHDEV_OBJ_PORT_VLAN(obj));
1078 break;
1079 case SWITCHDEV_OBJ_ID_PORT_MDB:
1080 ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
1081 break;
1082 case SWITCHDEV_OBJ_ID_MRP:
1083 ret = ocelot_port_obj_mrp_add(dev, SWITCHDEV_OBJ_MRP(obj));
1084 break;
1085 case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
1086 ret = ocelot_port_obj_mrp_add_ring_role(dev,
1087 SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
1088 break;
1089 default:
1090 return -EOPNOTSUPP;
1091 }
1092
1093 return ret;
1094}
1095
1096static int ocelot_port_obj_del(struct net_device *dev, const void *ctx,
1097 const struct switchdev_obj *obj)
1098{
1099 struct ocelot_port_private *priv = netdev_priv(dev);
1100 int ret = 0;
1101
1102 if (ctx && ctx != priv)
1103 return 0;
1104
1105 switch (obj->id) {
1106 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1107 ret = ocelot_vlan_vid_del(dev,
1108 SWITCHDEV_OBJ_PORT_VLAN(obj)->vid);
1109 break;
1110 case SWITCHDEV_OBJ_ID_PORT_MDB:
1111 ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
1112 break;
1113 case SWITCHDEV_OBJ_ID_MRP:
1114 ret = ocelot_port_obj_mrp_del(dev, SWITCHDEV_OBJ_MRP(obj));
1115 break;
1116 case SWITCHDEV_OBJ_ID_RING_ROLE_MRP:
1117 ret = ocelot_port_obj_mrp_del_ring_role(dev,
1118 SWITCHDEV_OBJ_RING_ROLE_MRP(obj));
1119 break;
1120 default:
1121 return -EOPNOTSUPP;
1122 }
1123
1124 return ret;
1125}
1126
1127static void ocelot_inherit_brport_flags(struct ocelot *ocelot, int port,
1128 struct net_device *brport_dev)
1129{
1130 struct switchdev_brport_flags flags = {0};
1131 int flag;
1132
1133 flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
1134
1135 for_each_set_bit(flag, &flags.mask, 32)
1136 if (br_port_flag_is_set(brport_dev, BIT(flag)))
1137 flags.val |= BIT(flag);
1138
1139 ocelot_port_bridge_flags(ocelot, port, flags);
1140}
1141
1142static void ocelot_clear_brport_flags(struct ocelot *ocelot, int port)
1143{
1144 struct switchdev_brport_flags flags;
1145
1146 flags.mask = BR_LEARNING | BR_FLOOD | BR_MCAST_FLOOD | BR_BCAST_FLOOD;
1147 flags.val = flags.mask & ~BR_LEARNING;
1148
1149 ocelot_port_bridge_flags(ocelot, port, flags);
1150}
1151
1152static int ocelot_switchdev_sync(struct ocelot *ocelot, int port,
1153 struct net_device *brport_dev,
1154 struct net_device *bridge_dev,
1155 struct netlink_ext_ack *extack)
1156{
1157 struct ocelot_port *ocelot_port = ocelot->ports[port];
1158 struct ocelot_port_private *priv;
1159 clock_t ageing_time;
1160 u8 stp_state;
1161 int err;
1162
1163 priv = container_of(ocelot_port, struct ocelot_port_private, port);
1164
1165 ocelot_inherit_brport_flags(ocelot, port, brport_dev);
1166
1167 stp_state = br_port_get_stp_state(brport_dev);
1168 ocelot_bridge_stp_state_set(ocelot, port, stp_state);
1169
1170 err = ocelot_port_vlan_filtering(ocelot, port,
1171 br_vlan_enabled(bridge_dev));
1172 if (err)
1173 return err;
1174
1175 ageing_time = br_get_ageing_time(bridge_dev);
1176 ocelot_port_attr_ageing_set(ocelot, port, ageing_time);
1177
1178 err = br_mdb_replay(bridge_dev, brport_dev, priv, true,
1179 &ocelot_switchdev_blocking_nb, extack);
1180 if (err && err != -EOPNOTSUPP)
1181 return err;
1182
1183 err = br_vlan_replay(bridge_dev, brport_dev, priv, true,
1184 &ocelot_switchdev_blocking_nb, extack);
1185 if (err && err != -EOPNOTSUPP)
1186 return err;
1187
1188 return 0;
1189}
1190
1191static int ocelot_switchdev_unsync(struct ocelot *ocelot, int port)
1192{
1193 int err;
1194
1195 err = ocelot_port_vlan_filtering(ocelot, port, false);
1196 if (err)
1197 return err;
1198
1199 ocelot_clear_brport_flags(ocelot, port);
1200
1201 ocelot_bridge_stp_state_set(ocelot, port, BR_STATE_FORWARDING);
1202
1203 return 0;
1204}
1205
1206static int ocelot_netdevice_bridge_join(struct net_device *dev,
1207 struct net_device *brport_dev,
1208 struct net_device *bridge,
1209 struct netlink_ext_ack *extack)
1210{
1211 struct ocelot_port_private *priv = netdev_priv(dev);
1212 struct ocelot_port *ocelot_port = &priv->port;
1213 struct ocelot *ocelot = ocelot_port->ocelot;
1214 int port = priv->chip_port;
1215 int err;
1216
1217 ocelot_port_bridge_join(ocelot, port, bridge);
1218
1219 err = ocelot_switchdev_sync(ocelot, port, brport_dev, bridge, extack);
1220 if (err)
1221 goto err_switchdev_sync;
1222
1223 return 0;
1224
1225err_switchdev_sync:
1226 ocelot_port_bridge_leave(ocelot, port, bridge);
1227 return err;
1228}
1229
1230static int ocelot_netdevice_bridge_leave(struct net_device *dev,
1231 struct net_device *brport_dev,
1232 struct net_device *bridge)
1233{
1234 struct ocelot_port_private *priv = netdev_priv(dev);
1235 struct ocelot_port *ocelot_port = &priv->port;
1236 struct ocelot *ocelot = ocelot_port->ocelot;
1237 int port = priv->chip_port;
1238 int err;
1239
1240 err = ocelot_switchdev_unsync(ocelot, port);
1241 if (err)
1242 return err;
1243
1244 ocelot_port_bridge_leave(ocelot, port, bridge);
1245
1246 return 0;
1247}
1248
1249static int ocelot_netdevice_lag_join(struct net_device *dev,
1250 struct net_device *bond,
1251 struct netdev_lag_upper_info *info,
1252 struct netlink_ext_ack *extack)
1253{
1254 struct ocelot_port_private *priv = netdev_priv(dev);
1255 struct ocelot_port *ocelot_port = &priv->port;
1256 struct ocelot *ocelot = ocelot_port->ocelot;
1257 struct net_device *bridge_dev;
1258 int port = priv->chip_port;
1259 int err;
1260
1261 err = ocelot_port_lag_join(ocelot, port, bond, info);
1262 if (err == -EOPNOTSUPP) {
1263 NL_SET_ERR_MSG_MOD(extack, "Offloading not supported");
1264 return 0;
1265 }
1266
1267 bridge_dev = netdev_master_upper_dev_get(bond);
1268 if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
1269 return 0;
1270
1271 err = ocelot_netdevice_bridge_join(dev, bond, bridge_dev, extack);
1272 if (err)
1273 goto err_bridge_join;
1274
1275 return 0;
1276
1277err_bridge_join:
1278 ocelot_port_lag_leave(ocelot, port, bond);
1279 return err;
1280}
1281
1282static int ocelot_netdevice_lag_leave(struct net_device *dev,
1283 struct net_device *bond)
1284{
1285 struct ocelot_port_private *priv = netdev_priv(dev);
1286 struct ocelot_port *ocelot_port = &priv->port;
1287 struct ocelot *ocelot = ocelot_port->ocelot;
1288 struct net_device *bridge_dev;
1289 int port = priv->chip_port;
1290
1291 ocelot_port_lag_leave(ocelot, port, bond);
1292
1293 bridge_dev = netdev_master_upper_dev_get(bond);
1294 if (!bridge_dev || !netif_is_bridge_master(bridge_dev))
1295 return 0;
1296
1297 return ocelot_netdevice_bridge_leave(dev, bond, bridge_dev);
1298}
1299
1300static int ocelot_netdevice_changeupper(struct net_device *dev,
1301 struct net_device *brport_dev,
1302 struct netdev_notifier_changeupper_info *info)
1303{
1304 struct netlink_ext_ack *extack;
1305 int err = 0;
1306
1307 extack = netdev_notifier_info_to_extack(&info->info);
1308
1309 if (netif_is_bridge_master(info->upper_dev)) {
1310 if (info->linking)
1311 err = ocelot_netdevice_bridge_join(dev, brport_dev,
1312 info->upper_dev,
1313 extack);
1314 else
1315 err = ocelot_netdevice_bridge_leave(dev, brport_dev,
1316 info->upper_dev);
1317 }
1318 if (netif_is_lag_master(info->upper_dev)) {
1319 if (info->linking)
1320 err = ocelot_netdevice_lag_join(dev, info->upper_dev,
1321 info->upper_info, extack);
1322 else
1323 ocelot_netdevice_lag_leave(dev, info->upper_dev);
1324 }
1325
1326 return notifier_from_errno(err);
1327}
1328
1329/* Treat CHANGEUPPER events on an offloaded LAG as individual CHANGEUPPER
1330 * events for the lower physical ports of the LAG.
1331 * If the LAG upper isn't offloaded, ignore its CHANGEUPPER events.
1332 * In case the LAG joined a bridge, notify that we are offloading it and can do
1333 * forwarding in hardware towards it.
1334 */
1335static int
1336ocelot_netdevice_lag_changeupper(struct net_device *dev,
1337 struct netdev_notifier_changeupper_info *info)
1338{
1339 struct net_device *lower;
1340 struct list_head *iter;
1341 int err = NOTIFY_DONE;
1342
1343 netdev_for_each_lower_dev(dev, lower, iter) {
1344 struct ocelot_port_private *priv = netdev_priv(lower);
1345 struct ocelot_port *ocelot_port = &priv->port;
1346
1347 if (ocelot_port->bond != dev)
1348 return NOTIFY_OK;
1349
1350 err = ocelot_netdevice_changeupper(lower, dev, info);
1351 if (err)
1352 return notifier_from_errno(err);
1353 }
1354
1355 return NOTIFY_DONE;
1356}
1357
1358static int
1359ocelot_netdevice_changelowerstate(struct net_device *dev,
1360 struct netdev_lag_lower_state_info *info)
1361{
1362 struct ocelot_port_private *priv = netdev_priv(dev);
1363 bool is_active = info->link_up && info->tx_enabled;
1364 struct ocelot_port *ocelot_port = &priv->port;
1365 struct ocelot *ocelot = ocelot_port->ocelot;
1366 int port = priv->chip_port;
1367
1368 if (!ocelot_port->bond)
1369 return NOTIFY_DONE;
1370
1371 if (ocelot_port->lag_tx_active == is_active)
1372 return NOTIFY_DONE;
1373
1374 ocelot_port_lag_change(ocelot, port, is_active);
1375
1376 return NOTIFY_OK;
1377}
1378
1379static int ocelot_netdevice_event(struct notifier_block *unused,
1380 unsigned long event, void *ptr)
1381{
1382 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
1383
1384 switch (event) {
1385 case NETDEV_CHANGEUPPER: {
1386 struct netdev_notifier_changeupper_info *info = ptr;
1387
1388 if (ocelot_netdevice_dev_check(dev))
1389 return ocelot_netdevice_changeupper(dev, dev, info);
1390
1391 if (netif_is_lag_master(dev))
1392 return ocelot_netdevice_lag_changeupper(dev, info);
1393
1394 break;
1395 }
1396 case NETDEV_CHANGELOWERSTATE: {
1397 struct netdev_notifier_changelowerstate_info *info = ptr;
1398
1399 if (!ocelot_netdevice_dev_check(dev))
1400 break;
1401
1402 return ocelot_netdevice_changelowerstate(dev,
1403 info->lower_state_info);
1404 }
1405 default:
1406 break;
1407 }
1408
1409 return NOTIFY_DONE;
1410}
1411
1412struct notifier_block ocelot_netdevice_nb __read_mostly = {
1413 .notifier_call = ocelot_netdevice_event,
1414};
1415
1416static int ocelot_switchdev_event(struct notifier_block *unused,
1417 unsigned long event, void *ptr)
1418{
1419 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
1420 int err;
1421
1422 switch (event) {
1423 case SWITCHDEV_PORT_ATTR_SET:
1424 err = switchdev_handle_port_attr_set(dev, ptr,
1425 ocelot_netdevice_dev_check,
1426 ocelot_port_attr_set);
1427 return notifier_from_errno(err);
1428 }
1429
1430 return NOTIFY_DONE;
1431}
1432
1433struct notifier_block ocelot_switchdev_nb __read_mostly = {
1434 .notifier_call = ocelot_switchdev_event,
1435};
1436
1437static int ocelot_switchdev_blocking_event(struct notifier_block *unused,
1438 unsigned long event, void *ptr)
1439{
1440 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
1441 int err;
1442
1443 switch (event) {
1444 /* Blocking events. */
1445 case SWITCHDEV_PORT_OBJ_ADD:
1446 err = switchdev_handle_port_obj_add(dev, ptr,
1447 ocelot_netdevice_dev_check,
1448 ocelot_port_obj_add);
1449 return notifier_from_errno(err);
1450 case SWITCHDEV_PORT_OBJ_DEL:
1451 err = switchdev_handle_port_obj_del(dev, ptr,
1452 ocelot_netdevice_dev_check,
1453 ocelot_port_obj_del);
1454 return notifier_from_errno(err);
1455 case SWITCHDEV_PORT_ATTR_SET:
1456 err = switchdev_handle_port_attr_set(dev, ptr,
1457 ocelot_netdevice_dev_check,
1458 ocelot_port_attr_set);
1459 return notifier_from_errno(err);
1460 }
1461
1462 return NOTIFY_DONE;
1463}
1464
1465struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = {
1466 .notifier_call = ocelot_switchdev_blocking_event,
1467};
1468
1469int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
1470 struct phy_device *phy)
1471{
1472 struct ocelot_port_private *priv;
1473 struct ocelot_port *ocelot_port;
1474 struct net_device *dev;
1475 int err;
1476
1477 dev = alloc_etherdev(sizeof(struct ocelot_port_private));
1478 if (!dev)
1479 return -ENOMEM;
1480 SET_NETDEV_DEV(dev, ocelot->dev);
1481 priv = netdev_priv(dev);
1482 priv->dev = dev;
1483 priv->phy = phy;
1484 priv->chip_port = port;
1485 ocelot_port = &priv->port;
1486 ocelot_port->ocelot = ocelot;
1487 ocelot_port->target = target;
1488 ocelot->ports[port] = ocelot_port;
1489
1490 dev->netdev_ops = &ocelot_port_netdev_ops;
1491 dev->ethtool_ops = &ocelot_ethtool_ops;
1492
1493 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXFCS |
1494 NETIF_F_HW_TC;
1495 dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
1496
1497 memcpy(dev->dev_addr, ocelot->base_mac, ETH_ALEN);
1498 dev->dev_addr[ETH_ALEN - 1] += port;
1499 ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr,
1500 ocelot_port->pvid_vlan.vid, ENTRYTYPE_LOCKED);
1501
1502 ocelot_init_port(ocelot, port);
1503
1504 err = register_netdev(dev);
1505 if (err) {
1506 dev_err(ocelot->dev, "register_netdev failed\n");
1507 free_netdev(dev);
1508 ocelot->ports[port] = NULL;
1509 return err;
1510 }
1511
1512 return 0;
1513}
1514
1515void ocelot_release_port(struct ocelot_port *ocelot_port)
1516{
1517 struct ocelot_port_private *priv = container_of(ocelot_port,
1518 struct ocelot_port_private,
1519 port);
1520
1521 unregister_netdev(priv->dev);
1522 free_netdev(priv->dev);
1523}