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Merge branch 'macb-support-the-2-deep-Tx-queue-on-at91'
[mirror_ubuntu-jammy-kernel.git] / drivers / net / ethernet / mscc / ocelot_net.c
CommitLineData
9c90eea3
VO		 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"
3c83654f 9#include "ocelot_vcap.h"
9c90eea3
VO		 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;
5f035af7 77 pol.burst = action->police.burst;
9c90eea3
VO		 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
334 val = ocelot_read(ocelot, QS_INJ_STATUS);
335 if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))) ||
336 (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp))))
337 return NETDEV_TX_BUSY;
338
339 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
340 QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp);
341
342 info.port = BIT(port);
343 info.tag_type = IFH_TAG_TYPE_C;
344 info.vid = skb_vlan_tag_get(skb);
345
346 /* Check if timestamping is needed */
e2f9a8fe
VO		 347 if (ocelot->ptp && (shinfo->tx_flags & SKBTX_HW_TSTAMP)) {
348 info.rew_op = ocelot_port->ptp_cmd;
349
350 if (ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP) {
351 struct sk_buff *clone;
352
353 clone = skb_clone_sk(skb);
354 if (!clone) {
355 kfree_skb(skb);
356 return NETDEV_TX_OK;
357 }
358
359 ocelot_port_add_txtstamp_skb(ocelot, port, clone);
360
361 info.rew_op |= clone->cb[0] << 3;
362 }
363 }
9dda66ac 364
9c90eea3
VO		 365 if (ocelot->ptp && shinfo->tx_flags & SKBTX_HW_TSTAMP) {
366 info.rew_op = ocelot_port->ptp_cmd;
6565243c
VO		 367 if (ocelot_port->ptp_cmd == IFH_REW_OP_TWO_STEP_PTP)
368 info.rew_op |= skb->cb[0] << 3;
9c90eea3
VO		 369 }
370
371 ocelot_gen_ifh(ifh, &info);
372
373 for (i = 0; i < OCELOT_TAG_LEN / 4; i++)
374 ocelot_write_rix(ocelot, (__force u32)cpu_to_be32(ifh[i]),
375 QS_INJ_WR, grp);
376
377 count = (skb->len + 3) / 4;
378 last = skb->len % 4;
379 for (i = 0; i < count; i++)
380 ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp);
381
382 /* Add padding */
383 while (i < (OCELOT_BUFFER_CELL_SZ / 4)) {
384 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
385 i++;
386 }
387
388 /* Indicate EOF and valid bytes in last word */
389 ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) |
390 QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) |
391 QS_INJ_CTRL_EOF,
392 QS_INJ_CTRL, grp);
393
394 /* Add dummy CRC */
395 ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp);
396 skb_tx_timestamp(skb);
397
398 dev->stats.tx_packets++;
399 dev->stats.tx_bytes += skb->len;
400
e2f9a8fe 401 kfree_skb(skb);
9c90eea3 402
9c90eea3
VO		 403 return NETDEV_TX_OK;
404}
405
406static int ocelot_mc_unsync(struct net_device *dev, const unsigned char *addr)
407{
408 struct ocelot_port_private *priv = netdev_priv(dev);
409 struct ocelot_port *ocelot_port = &priv->port;
410 struct ocelot *ocelot = ocelot_port->ocelot;
411
412 return ocelot_mact_forget(ocelot, addr, ocelot_port->pvid);
413}
414
415static int ocelot_mc_sync(struct net_device *dev, const unsigned char *addr)
416{
417 struct ocelot_port_private *priv = netdev_priv(dev);
418 struct ocelot_port *ocelot_port = &priv->port;
419 struct ocelot *ocelot = ocelot_port->ocelot;
420
421 return ocelot_mact_learn(ocelot, PGID_CPU, addr, ocelot_port->pvid,
422 ENTRYTYPE_LOCKED);
423}
424
425static void ocelot_set_rx_mode(struct net_device *dev)
426{
427 struct ocelot_port_private *priv = netdev_priv(dev);
428 struct ocelot *ocelot = priv->port.ocelot;
429 u32 val;
430 int i;
431
432 /* This doesn't handle promiscuous mode because the bridge core is
433 * setting IFF_PROMISC on all slave interfaces and all frames would be
434 * forwarded to the CPU port.
435 */
436 val = GENMASK(ocelot->num_phys_ports - 1, 0);
96b029b0 437 for_each_nonreserved_multicast_dest_pgid(ocelot, i)
9c90eea3
VO		 438 ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i);
439
440 __dev_mc_sync(dev, ocelot_mc_sync, ocelot_mc_unsync);
441}
442
443static int ocelot_port_get_phys_port_name(struct net_device *dev,
444 char *buf, size_t len)
445{
446 struct ocelot_port_private *priv = netdev_priv(dev);
447 int port = priv->chip_port;
448 int ret;
449
450 ret = snprintf(buf, len, "p%d", port);
451 if (ret >= len)
452 return -EINVAL;
453
454 return 0;
455}
456
457static int ocelot_port_set_mac_address(struct net_device *dev, void *p)
458{
459 struct ocelot_port_private *priv = netdev_priv(dev);
460 struct ocelot_port *ocelot_port = &priv->port;
461 struct ocelot *ocelot = ocelot_port->ocelot;
462 const struct sockaddr *addr = p;
463
464 /* Learn the new net device MAC address in the mac table. */
465 ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data, ocelot_port->pvid,
466 ENTRYTYPE_LOCKED);
467 /* Then forget the previous one. */
468 ocelot_mact_forget(ocelot, dev->dev_addr, ocelot_port->pvid);
469
470 ether_addr_copy(dev->dev_addr, addr->sa_data);
471 return 0;
472}
473
474static void ocelot_get_stats64(struct net_device *dev,
475 struct rtnl_link_stats64 *stats)
476{
477 struct ocelot_port_private *priv = netdev_priv(dev);
478 struct ocelot *ocelot = priv->port.ocelot;
479 int port = priv->chip_port;
480
481 /* Configure the port to read the stats from */
482 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port),
483 SYS_STAT_CFG);
484
485 /* Get Rx stats */
486 stats->rx_bytes = ocelot_read(ocelot, SYS_COUNT_RX_OCTETS);
487 stats->rx_packets = ocelot_read(ocelot, SYS_COUNT_RX_SHORTS) +
488 ocelot_read(ocelot, SYS_COUNT_RX_FRAGMENTS) +
489 ocelot_read(ocelot, SYS_COUNT_RX_JABBERS) +
490 ocelot_read(ocelot, SYS_COUNT_RX_LONGS) +
491 ocelot_read(ocelot, SYS_COUNT_RX_64) +
492 ocelot_read(ocelot, SYS_COUNT_RX_65_127) +
493 ocelot_read(ocelot, SYS_COUNT_RX_128_255) +
494 ocelot_read(ocelot, SYS_COUNT_RX_256_1023) +
495 ocelot_read(ocelot, SYS_COUNT_RX_1024_1526) +
496 ocelot_read(ocelot, SYS_COUNT_RX_1527_MAX);
497 stats->multicast = ocelot_read(ocelot, SYS_COUNT_RX_MULTICAST);
498 stats->rx_dropped = dev->stats.rx_dropped;
499
500 /* Get Tx stats */
501 stats->tx_bytes = ocelot_read(ocelot, SYS_COUNT_TX_OCTETS);
502 stats->tx_packets = ocelot_read(ocelot, SYS_COUNT_TX_64) +
503 ocelot_read(ocelot, SYS_COUNT_TX_65_127) +
504 ocelot_read(ocelot, SYS_COUNT_TX_128_511) +
505 ocelot_read(ocelot, SYS_COUNT_TX_512_1023) +
506 ocelot_read(ocelot, SYS_COUNT_TX_1024_1526) +
507 ocelot_read(ocelot, SYS_COUNT_TX_1527_MAX);
508 stats->tx_dropped = ocelot_read(ocelot, SYS_COUNT_TX_DROPS) +
509 ocelot_read(ocelot, SYS_COUNT_TX_AGING);
510 stats->collisions = ocelot_read(ocelot, SYS_COUNT_TX_COLLISION);
511}
512
513static int ocelot_port_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
514 struct net_device *dev,
515 const unsigned char *addr,
516 u16 vid, u16 flags,
517 struct netlink_ext_ack *extack)
518{
519 struct ocelot_port_private *priv = netdev_priv(dev);
520 struct ocelot *ocelot = priv->port.ocelot;
521 int port = priv->chip_port;
522
523 return ocelot_fdb_add(ocelot, port, addr, vid);
524}
525
526static int ocelot_port_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
527 struct net_device *dev,
528 const unsigned char *addr, u16 vid)
529{
530 struct ocelot_port_private *priv = netdev_priv(dev);
531 struct ocelot *ocelot = priv->port.ocelot;
532 int port = priv->chip_port;
533
534 return ocelot_fdb_del(ocelot, port, addr, vid);
535}
536
537static int ocelot_port_fdb_dump(struct sk_buff *skb,
538 struct netlink_callback *cb,
539 struct net_device *dev,
540 struct net_device *filter_dev, int *idx)
541{
542 struct ocelot_port_private *priv = netdev_priv(dev);
543 struct ocelot *ocelot = priv->port.ocelot;
544 struct ocelot_dump_ctx dump = {
545 .dev = dev,
546 .skb = skb,
547 .cb = cb,
548 .idx = *idx,
549 };
550 int port = priv->chip_port;
551 int ret;
552
553 ret = ocelot_fdb_dump(ocelot, port, ocelot_port_fdb_do_dump, &dump);
554
555 *idx = dump.idx;
556
557 return ret;
558}
559
560static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
561 u16 vid)
562{
563 return ocelot_vlan_vid_add(dev, vid, false, false);
564}
565
566static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
567 u16 vid)
568{
569 return ocelot_vlan_vid_del(dev, vid);
570}
571
572static void ocelot_vlan_mode(struct ocelot *ocelot, int port,
573 netdev_features_t features)
574{
575 u32 val;
576
577 /* Filtering */
578 val = ocelot_read(ocelot, ANA_VLANMASK);
579 if (features & NETIF_F_HW_VLAN_CTAG_FILTER)
580 val |= BIT(port);
581 else
582 val &= ~BIT(port);
583 ocelot_write(ocelot, val, ANA_VLANMASK);
584}
585
586static int ocelot_set_features(struct net_device *dev,
587 netdev_features_t features)
588{
589 netdev_features_t changed = dev->features ^ features;
590 struct ocelot_port_private *priv = netdev_priv(dev);
591 struct ocelot *ocelot = priv->port.ocelot;
592 int port = priv->chip_port;
593
594 if ((dev->features & NETIF_F_HW_TC) > (features & NETIF_F_HW_TC) &&
595 priv->tc.offload_cnt) {
596 netdev_err(dev,
597 "Cannot disable HW TC offload while offloads active\n");
598 return -EBUSY;
599 }
600
601 if (changed & NETIF_F_HW_VLAN_CTAG_FILTER)
602 ocelot_vlan_mode(ocelot, port, features);
603
604 return 0;
605}
606
607static int ocelot_get_port_parent_id(struct net_device *dev,
608 struct netdev_phys_item_id *ppid)
609{
610 struct ocelot_port_private *priv = netdev_priv(dev);
611 struct ocelot *ocelot = priv->port.ocelot;
612
613 ppid->id_len = sizeof(ocelot->base_mac);
614 memcpy(&ppid->id, &ocelot->base_mac, ppid->id_len);
615
616 return 0;
617}
618
619static int ocelot_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
620{
621 struct ocelot_port_private *priv = netdev_priv(dev);
622 struct ocelot *ocelot = priv->port.ocelot;
623 int port = priv->chip_port;
624
625 /* If the attached PHY device isn't capable of timestamping operations,
626 * use our own (when possible).
627 */
628 if (!phy_has_hwtstamp(dev->phydev) && ocelot->ptp) {
629 switch (cmd) {
630 case SIOCSHWTSTAMP:
631 return ocelot_hwstamp_set(ocelot, port, ifr);
632 case SIOCGHWTSTAMP:
633 return ocelot_hwstamp_get(ocelot, port, ifr);
634 }
635 }
636
637 return phy_mii_ioctl(dev->phydev, ifr, cmd);
638}
639
640static const struct net_device_ops ocelot_port_netdev_ops = {
641 .ndo_open = ocelot_port_open,
642 .ndo_stop = ocelot_port_stop,
643 .ndo_start_xmit = ocelot_port_xmit,
644 .ndo_set_rx_mode = ocelot_set_rx_mode,
645 .ndo_get_phys_port_name = ocelot_port_get_phys_port_name,
646 .ndo_set_mac_address = ocelot_port_set_mac_address,
647 .ndo_get_stats64 = ocelot_get_stats64,
648 .ndo_fdb_add = ocelot_port_fdb_add,
649 .ndo_fdb_del = ocelot_port_fdb_del,
650 .ndo_fdb_dump = ocelot_port_fdb_dump,
651 .ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid,
652 .ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid,
653 .ndo_set_features = ocelot_set_features,
654 .ndo_get_port_parent_id = ocelot_get_port_parent_id,
655 .ndo_setup_tc = ocelot_setup_tc,
656 .ndo_do_ioctl = ocelot_ioctl,
657};
658
319e4dd1
VO		 659struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port)
660{
661 struct ocelot_port *ocelot_port = ocelot->ports[port];
662 struct ocelot_port_private *priv;
663
664 if (!ocelot_port)
665 return NULL;
666
667 priv = container_of(ocelot_port, struct ocelot_port_private, port);
668
669 return priv->dev;
670}
671
672static bool ocelot_port_dev_check(const struct net_device *dev)
673{
674 return dev->netdev_ops == &ocelot_port_netdev_ops;
675}
676
677int ocelot_netdev_to_port(struct net_device *dev)
678{
679 struct ocelot_port_private *priv;
680
681 if (!dev || !ocelot_port_dev_check(dev))
682 return -EINVAL;
683
684 priv = netdev_priv(dev);
685
686 return priv->chip_port;
687}
688
9c90eea3
VO		 689static void ocelot_port_get_strings(struct net_device *netdev, u32 sset,
690 u8 *data)
691{
692 struct ocelot_port_private *priv = netdev_priv(netdev);
693 struct ocelot *ocelot = priv->port.ocelot;
694 int port = priv->chip_port;
695
696 ocelot_get_strings(ocelot, port, sset, data);
697}
698
699static void ocelot_port_get_ethtool_stats(struct net_device *dev,
700 struct ethtool_stats *stats,
701 u64 *data)
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 ocelot_get_ethtool_stats(ocelot, port, data);
708}
709
710static int ocelot_port_get_sset_count(struct net_device *dev, int sset)
711{
712 struct ocelot_port_private *priv = netdev_priv(dev);
713 struct ocelot *ocelot = priv->port.ocelot;
714 int port = priv->chip_port;
715
716 return ocelot_get_sset_count(ocelot, port, sset);
717}
718
719static int ocelot_port_get_ts_info(struct net_device *dev,
720 struct ethtool_ts_info *info)
721{
722 struct ocelot_port_private *priv = netdev_priv(dev);
723 struct ocelot *ocelot = priv->port.ocelot;
724 int port = priv->chip_port;
725
726 if (!ocelot->ptp)
727 return ethtool_op_get_ts_info(dev, info);
728
729 return ocelot_get_ts_info(ocelot, port, info);
730}
731
732static const struct ethtool_ops ocelot_ethtool_ops = {
733 .get_strings = ocelot_port_get_strings,
734 .get_ethtool_stats = ocelot_port_get_ethtool_stats,
735 .get_sset_count = ocelot_port_get_sset_count,
736 .get_link_ksettings = phy_ethtool_get_link_ksettings,
737 .set_link_ksettings = phy_ethtool_set_link_ksettings,
738 .get_ts_info = ocelot_port_get_ts_info,
739};
740
741static void ocelot_port_attr_stp_state_set(struct ocelot *ocelot, int port,
742 struct switchdev_trans *trans,
743 u8 state)
744{
745 if (switchdev_trans_ph_prepare(trans))
746 return;
747
748 ocelot_bridge_stp_state_set(ocelot, port, state);
749}
750
751static void ocelot_port_attr_ageing_set(struct ocelot *ocelot, int port,
752 unsigned long ageing_clock_t)
753{
754 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
755 u32 ageing_time = jiffies_to_msecs(ageing_jiffies);
756
757 ocelot_set_ageing_time(ocelot, ageing_time);
758}
759
760static void ocelot_port_attr_mc_set(struct ocelot *ocelot, int port, bool mc)
761{
762 u32 cpu_fwd_mcast = ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA |
763 ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA |
764 ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA;
765 u32 val = 0;
766
767 if (mc)
768 val = cpu_fwd_mcast;
769
770 ocelot_rmw_gix(ocelot, val, cpu_fwd_mcast,
771 ANA_PORT_CPU_FWD_CFG, port);
772}
773
774static int ocelot_port_attr_set(struct net_device *dev,
775 const struct switchdev_attr *attr,
776 struct switchdev_trans *trans)
777{
778 struct ocelot_port_private *priv = netdev_priv(dev);
779 struct ocelot *ocelot = priv->port.ocelot;
780 int port = priv->chip_port;
781 int err = 0;
782
783 switch (attr->id) {
784 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
785 ocelot_port_attr_stp_state_set(ocelot, port, trans,
786 attr->u.stp_state);
787 break;
788 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
789 ocelot_port_attr_ageing_set(ocelot, port, attr->u.ageing_time);
790 break;
791 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
792 ocelot_port_vlan_filtering(ocelot, port,
2e554a7a 793 attr->u.vlan_filtering, trans);
9c90eea3
VO		 794 break;
795 case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED:
796 ocelot_port_attr_mc_set(ocelot, port, !attr->u.mc_disabled);
797 break;
798 default:
799 err = -EOPNOTSUPP;
800 break;
801 }
802
803 return err;
804}
805
806static int ocelot_port_obj_add_vlan(struct net_device *dev,
807 const struct switchdev_obj_port_vlan *vlan,
808 struct switchdev_trans *trans)
809{
810 int ret;
811 u16 vid;
812
813 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
814 ret = ocelot_vlan_vid_add(dev, vid,
815 vlan->flags & BRIDGE_VLAN_INFO_PVID,
816 vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED);
817 if (ret)
818 return ret;
819 }
820
821 return 0;
822}
823
824static int ocelot_port_vlan_del_vlan(struct net_device *dev,
825 const struct switchdev_obj_port_vlan *vlan)
826{
827 int ret;
828 u16 vid;
829
830 for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) {
831 ret = ocelot_vlan_vid_del(dev, vid);
832
833 if (ret)
834 return ret;
835 }
836
837 return 0;
838}
839
209edf95
VO		 840static int ocelot_port_obj_add_mdb(struct net_device *dev,
841 const struct switchdev_obj_port_mdb *mdb,
842 struct switchdev_trans *trans)
843{
844 struct ocelot_port_private *priv = netdev_priv(dev);
845 struct ocelot_port *ocelot_port = &priv->port;
846 struct ocelot *ocelot = ocelot_port->ocelot;
847 int port = priv->chip_port;
848
849 if (switchdev_trans_ph_prepare(trans))
850 return 0;
851
852 return ocelot_port_mdb_add(ocelot, port, mdb);
853}
854
855static int ocelot_port_obj_del_mdb(struct net_device *dev,
856 const struct switchdev_obj_port_mdb *mdb)
857{
858 struct ocelot_port_private *priv = netdev_priv(dev);
859 struct ocelot_port *ocelot_port = &priv->port;
860 struct ocelot *ocelot = ocelot_port->ocelot;
861 int port = priv->chip_port;
862
863 return ocelot_port_mdb_del(ocelot, port, mdb);
864}
865
9c90eea3
VO		 866static int ocelot_port_obj_add(struct net_device *dev,
867 const struct switchdev_obj *obj,
868 struct switchdev_trans *trans,
869 struct netlink_ext_ack *extack)
870{
871 int ret = 0;
872
873 switch (obj->id) {
874 case SWITCHDEV_OBJ_ID_PORT_VLAN:
875 ret = ocelot_port_obj_add_vlan(dev,
876 SWITCHDEV_OBJ_PORT_VLAN(obj),
877 trans);
878 break;
879 case SWITCHDEV_OBJ_ID_PORT_MDB:
880 ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
881 trans);
882 break;
883 default:
884 return -EOPNOTSUPP;
885 }
886
887 return ret;
888}
889
890static int ocelot_port_obj_del(struct net_device *dev,
891 const struct switchdev_obj *obj)
892{
893 int ret = 0;
894
895 switch (obj->id) {
896 case SWITCHDEV_OBJ_ID_PORT_VLAN:
897 ret = ocelot_port_vlan_del_vlan(dev,
898 SWITCHDEV_OBJ_PORT_VLAN(obj));
899 break;
900 case SWITCHDEV_OBJ_ID_PORT_MDB:
901 ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
902 break;
903 default:
904 return -EOPNOTSUPP;
905 }
906
907 return ret;
908}
909
910/* Checks if the net_device instance given to us originate from our driver. */
911static bool ocelot_netdevice_dev_check(const struct net_device *dev)
912{
913 return dev->netdev_ops == &ocelot_port_netdev_ops;
914}
915
916static int ocelot_netdevice_port_event(struct net_device *dev,
917 unsigned long event,
918 struct netdev_notifier_changeupper_info *info)
919{
920 struct ocelot_port_private *priv = netdev_priv(dev);
921 struct ocelot_port *ocelot_port = &priv->port;
922 struct ocelot *ocelot = ocelot_port->ocelot;
923 int port = priv->chip_port;
924 int err = 0;
925
926 switch (event) {
927 case NETDEV_CHANGEUPPER:
928 if (netif_is_bridge_master(info->upper_dev)) {
929 if (info->linking) {
930 err = ocelot_port_bridge_join(ocelot, port,
931 info->upper_dev);
932 } else {
933 err = ocelot_port_bridge_leave(ocelot, port,
934 info->upper_dev);
935 }
936 }
937 if (netif_is_lag_master(info->upper_dev)) {
938 if (info->linking)
939 err = ocelot_port_lag_join(ocelot, port,
940 info->upper_dev);
941 else
942 ocelot_port_lag_leave(ocelot, port,
943 info->upper_dev);
944 }
945 break;
946 default:
947 break;
948 }
949
950 return err;
951}
952
953static int ocelot_netdevice_event(struct notifier_block *unused,
954 unsigned long event, void *ptr)
955{
956 struct netdev_notifier_changeupper_info *info = ptr;
957 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
958 int ret = 0;
959
960 if (!ocelot_netdevice_dev_check(dev))
961 return 0;
962
963 if (event == NETDEV_PRECHANGEUPPER &&
964 netif_is_lag_master(info->upper_dev)) {
965 struct netdev_lag_upper_info *lag_upper_info = info->upper_info;
966 struct netlink_ext_ack *extack;
967
968 if (lag_upper_info &&
969 lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
970 extack = netdev_notifier_info_to_extack(&info->info);
971 NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");
972
973 ret = -EINVAL;
974 goto notify;
975 }
976 }
977
978 if (netif_is_lag_master(dev)) {
979 struct net_device *slave;
980 struct list_head *iter;
981
982 netdev_for_each_lower_dev(dev, slave, iter) {
983 ret = ocelot_netdevice_port_event(slave, event, info);
984 if (ret)
985 goto notify;
986 }
987 } else {
988 ret = ocelot_netdevice_port_event(dev, event, info);
989 }
990
991notify:
992 return notifier_from_errno(ret);
993}
994
995struct notifier_block ocelot_netdevice_nb __read_mostly = {
996 .notifier_call = ocelot_netdevice_event,
997};
9c90eea3
VO		 998
999static int ocelot_switchdev_event(struct notifier_block *unused,
1000 unsigned long event, void *ptr)
1001{
1002 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
1003 int err;
1004
1005 switch (event) {
1006 case SWITCHDEV_PORT_ATTR_SET:
1007 err = switchdev_handle_port_attr_set(dev, ptr,
1008 ocelot_netdevice_dev_check,
1009 ocelot_port_attr_set);
1010 return notifier_from_errno(err);
1011 }
1012
1013 return NOTIFY_DONE;
1014}
1015
1016struct notifier_block ocelot_switchdev_nb __read_mostly = {
1017 .notifier_call = ocelot_switchdev_event,
1018};
9c90eea3
VO		 1019
1020static int ocelot_switchdev_blocking_event(struct notifier_block *unused,
1021 unsigned long event, void *ptr)
1022{
1023 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
1024 int err;
1025
1026 switch (event) {
1027 /* Blocking events. */
1028 case SWITCHDEV_PORT_OBJ_ADD:
1029 err = switchdev_handle_port_obj_add(dev, ptr,
1030 ocelot_netdevice_dev_check,
1031 ocelot_port_obj_add);
1032 return notifier_from_errno(err);
1033 case SWITCHDEV_PORT_OBJ_DEL:
1034 err = switchdev_handle_port_obj_del(dev, ptr,
1035 ocelot_netdevice_dev_check,
1036 ocelot_port_obj_del);
1037 return notifier_from_errno(err);
1038 case SWITCHDEV_PORT_ATTR_SET:
1039 err = switchdev_handle_port_attr_set(dev, ptr,
1040 ocelot_netdevice_dev_check,
1041 ocelot_port_attr_set);
1042 return notifier_from_errno(err);
1043 }
1044
1045 return NOTIFY_DONE;
1046}
1047
1048struct notifier_block ocelot_switchdev_blocking_nb __read_mostly = {
1049 .notifier_call = ocelot_switchdev_blocking_event,
1050};
9c90eea3 1051
91c724cf 1052int ocelot_probe_port(struct ocelot *ocelot, int port, struct regmap *target,
9c90eea3
VO		 1053 struct phy_device *phy)
1054{
1055 struct ocelot_port_private *priv;
1056 struct ocelot_port *ocelot_port;
1057 struct net_device *dev;
1058 int err;
1059
1060 dev = alloc_etherdev(sizeof(struct ocelot_port_private));
1061 if (!dev)
1062 return -ENOMEM;
1063 SET_NETDEV_DEV(dev, ocelot->dev);
1064 priv = netdev_priv(dev);
1065 priv->dev = dev;
1066 priv->phy = phy;
1067 priv->chip_port = port;
1068 ocelot_port = &priv->port;
1069 ocelot_port->ocelot = ocelot;
91c724cf 1070 ocelot_port->target = target;
9c90eea3
VO		 1071 ocelot->ports[port] = ocelot_port;
1072
1073 dev->netdev_ops = &ocelot_port_netdev_ops;
1074 dev->ethtool_ops = &ocelot_ethtool_ops;
1075
1076 dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXFCS |
1077 NETIF_F_HW_TC;
1078 dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
1079
1080 memcpy(dev->dev_addr, ocelot->base_mac, ETH_ALEN);
1081 dev->dev_addr[ETH_ALEN - 1] += port;
1082 ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, ocelot_port->pvid,
1083 ENTRYTYPE_LOCKED);
1084
1085 ocelot_init_port(ocelot, port);
1086
1087 err = register_netdev(dev);
1088 if (err) {
1089 dev_err(ocelot->dev, "register_netdev failed\n");
1090 free_netdev(dev);
1091 }
1092
1093 return err;
1094}
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