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10#include <linux/module.h>
11
12#include <linux/interrupt.h>
13#include <linux/msi.h>
14#include <linux/kthread.h>
15#include <linux/workqueue.h>
16#include <linux/iommu.h>
17#include <net/pkt_cls.h>
18
19#include <linux/fsl/mc.h>
20
21#include "dpaa2-switch.h"
22
23
24#define DPSW_MIN_VER_MAJOR 8
25#define DPSW_MIN_VER_MINOR 9
26
27#define DEFAULT_VLAN_ID 1
28
29static u16 dpaa2_switch_port_get_fdb_id(struct ethsw_port_priv *port_priv)
30{
31 return port_priv->fdb->fdb_id;
32}
33
34static struct dpaa2_switch_fdb *dpaa2_switch_fdb_get_unused(struct ethsw_core *ethsw)
35{
36 int i;
37
38 for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
39 if (!ethsw->fdbs[i].in_use)
40 return ðsw->fdbs[i];
41 return NULL;
42}
43
44static struct dpaa2_switch_filter_block *
45dpaa2_switch_filter_block_get_unused(struct ethsw_core *ethsw)
46{
47 int i;
48
49 for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
50 if (!ethsw->filter_blocks[i].in_use)
51 return ðsw->filter_blocks[i];
52 return NULL;
53}
54
55static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv,
56 struct net_device *bridge_dev)
57{
58 struct ethsw_port_priv *other_port_priv = NULL;
59 struct dpaa2_switch_fdb *fdb;
60 struct net_device *other_dev;
61 struct list_head *iter;
62
63
64
65
66 if (!bridge_dev) {
67 fdb = dpaa2_switch_fdb_get_unused(port_priv->ethsw_data);
68
69
70
71
72
73
74 if (!fdb) {
75 port_priv->fdb->bridge_dev = NULL;
76 return 0;
77 }
78
79 port_priv->fdb = fdb;
80 port_priv->fdb->in_use = true;
81 port_priv->fdb->bridge_dev = NULL;
82 return 0;
83 }
84
85
86
87
88
89 ASSERT_RTNL();
90
91
92
93
94 netdev_for_each_lower_dev(bridge_dev, other_dev, iter) {
95 if (!dpaa2_switch_port_dev_check(other_dev))
96 continue;
97
98 if (other_dev == port_priv->netdev)
99 continue;
100
101 other_port_priv = netdev_priv(other_dev);
102 break;
103 }
104
105
106
107
108 if (other_port_priv) {
109
110
111
112 port_priv->fdb->in_use = false;
113 port_priv->fdb->bridge_dev = NULL;
114
115
116 port_priv->fdb = other_port_priv->fdb;
117 }
118
119
120 port_priv->fdb->bridge_dev = bridge_dev;
121
122 return 0;
123}
124
125static void dpaa2_switch_fdb_get_flood_cfg(struct ethsw_core *ethsw, u16 fdb_id,
126 enum dpsw_flood_type type,
127 struct dpsw_egress_flood_cfg *cfg)
128{
129 int i = 0, j;
130
131 memset(cfg, 0, sizeof(*cfg));
132
133
134
135
136 for (j = 0; j < ethsw->sw_attr.num_ifs; j++) {
137 if (!ethsw->ports[j])
138 continue;
139 if (ethsw->ports[j]->fdb->fdb_id != fdb_id)
140 continue;
141
142 if (type == DPSW_BROADCAST && ethsw->ports[j]->bcast_flood)
143 cfg->if_id[i++] = ethsw->ports[j]->idx;
144 else if (type == DPSW_FLOODING && ethsw->ports[j]->ucast_flood)
145 cfg->if_id[i++] = ethsw->ports[j]->idx;
146 }
147
148
149 cfg->if_id[i++] = ethsw->sw_attr.num_ifs;
150
151 cfg->fdb_id = fdb_id;
152 cfg->flood_type = type;
153 cfg->num_ifs = i;
154}
155
156static int dpaa2_switch_fdb_set_egress_flood(struct ethsw_core *ethsw, u16 fdb_id)
157{
158 struct dpsw_egress_flood_cfg flood_cfg;
159 int err;
160
161
162 dpaa2_switch_fdb_get_flood_cfg(ethsw, fdb_id, DPSW_BROADCAST, &flood_cfg);
163 err = dpsw_set_egress_flood(ethsw->mc_io, 0, ethsw->dpsw_handle,
164 &flood_cfg);
165 if (err) {
166 dev_err(ethsw->dev, "dpsw_set_egress_flood() = %d\n", err);
167 return err;
168 }
169
170
171 dpaa2_switch_fdb_get_flood_cfg(ethsw, fdb_id, DPSW_FLOODING, &flood_cfg);
172 err = dpsw_set_egress_flood(ethsw->mc_io, 0, ethsw->dpsw_handle,
173 &flood_cfg);
174 if (err) {
175 dev_err(ethsw->dev, "dpsw_set_egress_flood() = %d\n", err);
176 return err;
177 }
178
179 return 0;
180}
181
182static void *dpaa2_iova_to_virt(struct iommu_domain *domain,
183 dma_addr_t iova_addr)
184{
185 phys_addr_t phys_addr;
186
187 phys_addr = domain ? iommu_iova_to_phys(domain, iova_addr) : iova_addr;
188
189 return phys_to_virt(phys_addr);
190}
191
192static int dpaa2_switch_add_vlan(struct ethsw_port_priv *port_priv, u16 vid)
193{
194 struct ethsw_core *ethsw = port_priv->ethsw_data;
195 struct dpsw_vlan_cfg vcfg = {0};
196 int err;
197
198 vcfg.fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
199 err = dpsw_vlan_add(ethsw->mc_io, 0,
200 ethsw->dpsw_handle, vid, &vcfg);
201 if (err) {
202 dev_err(ethsw->dev, "dpsw_vlan_add err %d\n", err);
203 return err;
204 }
205 ethsw->vlans[vid] = ETHSW_VLAN_MEMBER;
206
207 return 0;
208}
209
210static bool dpaa2_switch_port_is_up(struct ethsw_port_priv *port_priv)
211{
212 struct net_device *netdev = port_priv->netdev;
213 struct dpsw_link_state state;
214 int err;
215
216 err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,
217 port_priv->ethsw_data->dpsw_handle,
218 port_priv->idx, &state);
219 if (err) {
220 netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err);
221 return true;
222 }
223
224 WARN_ONCE(state.up > 1, "Garbage read into link_state");
225
226 return state.up ? true : false;
227}
228
229static int dpaa2_switch_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid)
230{
231 struct ethsw_core *ethsw = port_priv->ethsw_data;
232 struct net_device *netdev = port_priv->netdev;
233 struct dpsw_tci_cfg tci_cfg = { 0 };
234 bool up;
235 int err, ret;
236
237 err = dpsw_if_get_tci(ethsw->mc_io, 0, ethsw->dpsw_handle,
238 port_priv->idx, &tci_cfg);
239 if (err) {
240 netdev_err(netdev, "dpsw_if_get_tci err %d\n", err);
241 return err;
242 }
243
244 tci_cfg.vlan_id = pvid;
245
246
247 up = dpaa2_switch_port_is_up(port_priv);
248 if (up) {
249 err = dpsw_if_disable(ethsw->mc_io, 0,
250 ethsw->dpsw_handle,
251 port_priv->idx);
252 if (err) {
253 netdev_err(netdev, "dpsw_if_disable err %d\n", err);
254 return err;
255 }
256 }
257
258 err = dpsw_if_set_tci(ethsw->mc_io, 0, ethsw->dpsw_handle,
259 port_priv->idx, &tci_cfg);
260 if (err) {
261 netdev_err(netdev, "dpsw_if_set_tci err %d\n", err);
262 goto set_tci_error;
263 }
264
265
266 port_priv->vlans[port_priv->pvid] &= ~ETHSW_VLAN_PVID;
267 port_priv->vlans[pvid] |= ETHSW_VLAN_PVID;
268 port_priv->pvid = pvid;
269
270set_tci_error:
271 if (up) {
272 ret = dpsw_if_enable(ethsw->mc_io, 0,
273 ethsw->dpsw_handle,
274 port_priv->idx);
275 if (ret) {
276 netdev_err(netdev, "dpsw_if_enable err %d\n", ret);
277 return ret;
278 }
279 }
280
281 return err;
282}
283
284static int dpaa2_switch_port_add_vlan(struct ethsw_port_priv *port_priv,
285 u16 vid, u16 flags)
286{
287 struct ethsw_core *ethsw = port_priv->ethsw_data;
288 struct net_device *netdev = port_priv->netdev;
289 struct dpsw_vlan_if_cfg vcfg = {0};
290 int err;
291
292 if (port_priv->vlans[vid]) {
293 netdev_warn(netdev, "VLAN %d already configured\n", vid);
294 return -EEXIST;
295 }
296
297
298
299
300 vcfg.num_ifs = 1;
301 vcfg.if_id[0] = port_priv->idx;
302 vcfg.fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
303 vcfg.options |= DPSW_VLAN_ADD_IF_OPT_FDB_ID;
304 err = dpsw_vlan_add_if(ethsw->mc_io, 0, ethsw->dpsw_handle, vid, &vcfg);
305 if (err) {
306 netdev_err(netdev, "dpsw_vlan_add_if err %d\n", err);
307 return err;
308 }
309
310 port_priv->vlans[vid] = ETHSW_VLAN_MEMBER;
311
312 if (flags & BRIDGE_VLAN_INFO_UNTAGGED) {
313 err = dpsw_vlan_add_if_untagged(ethsw->mc_io, 0,
314 ethsw->dpsw_handle,
315 vid, &vcfg);
316 if (err) {
317 netdev_err(netdev,
318 "dpsw_vlan_add_if_untagged err %d\n", err);
319 return err;
320 }
321 port_priv->vlans[vid] |= ETHSW_VLAN_UNTAGGED;
322 }
323
324 if (flags & BRIDGE_VLAN_INFO_PVID) {
325 err = dpaa2_switch_port_set_pvid(port_priv, vid);
326 if (err)
327 return err;
328 }
329
330 return 0;
331}
332
333static enum dpsw_stp_state br_stp_state_to_dpsw(u8 state)
334{
335 switch (state) {
336 case BR_STATE_DISABLED:
337 return DPSW_STP_STATE_DISABLED;
338 case BR_STATE_LISTENING:
339 return DPSW_STP_STATE_LISTENING;
340 case BR_STATE_LEARNING:
341 return DPSW_STP_STATE_LEARNING;
342 case BR_STATE_FORWARDING:
343 return DPSW_STP_STATE_FORWARDING;
344 case BR_STATE_BLOCKING:
345 return DPSW_STP_STATE_BLOCKING;
346 default:
347 return DPSW_STP_STATE_DISABLED;
348 }
349}
350
351static int dpaa2_switch_port_set_stp_state(struct ethsw_port_priv *port_priv, u8 state)
352{
353 struct dpsw_stp_cfg stp_cfg = {0};
354 int err;
355 u16 vid;
356
357 if (!netif_running(port_priv->netdev) || state == port_priv->stp_state)
358 return 0;
359
360 stp_cfg.state = br_stp_state_to_dpsw(state);
361 for (vid = 0; vid <= VLAN_VID_MASK; vid++) {
362 if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) {
363 stp_cfg.vlan_id = vid;
364 err = dpsw_if_set_stp(port_priv->ethsw_data->mc_io, 0,
365 port_priv->ethsw_data->dpsw_handle,
366 port_priv->idx, &stp_cfg);
367 if (err) {
368 netdev_err(port_priv->netdev,
369 "dpsw_if_set_stp err %d\n", err);
370 return err;
371 }
372 }
373 }
374
375 port_priv->stp_state = state;
376
377 return 0;
378}
379
380static int dpaa2_switch_dellink(struct ethsw_core *ethsw, u16 vid)
381{
382 struct ethsw_port_priv *ppriv_local = NULL;
383 int i, err;
384
385 if (!ethsw->vlans[vid])
386 return -ENOENT;
387
388 err = dpsw_vlan_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, vid);
389 if (err) {
390 dev_err(ethsw->dev, "dpsw_vlan_remove err %d\n", err);
391 return err;
392 }
393 ethsw->vlans[vid] = 0;
394
395 for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
396 ppriv_local = ethsw->ports[i];
397 ppriv_local->vlans[vid] = 0;
398 }
399
400 return 0;
401}
402
403static int dpaa2_switch_port_fdb_add_uc(struct ethsw_port_priv *port_priv,
404 const unsigned char *addr)
405{
406 struct dpsw_fdb_unicast_cfg entry = {0};
407 u16 fdb_id;
408 int err;
409
410 entry.if_egress = port_priv->idx;
411 entry.type = DPSW_FDB_ENTRY_STATIC;
412 ether_addr_copy(entry.mac_addr, addr);
413
414 fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
415 err = dpsw_fdb_add_unicast(port_priv->ethsw_data->mc_io, 0,
416 port_priv->ethsw_data->dpsw_handle,
417 fdb_id, &entry);
418 if (err)
419 netdev_err(port_priv->netdev,
420 "dpsw_fdb_add_unicast err %d\n", err);
421 return err;
422}
423
424static int dpaa2_switch_port_fdb_del_uc(struct ethsw_port_priv *port_priv,
425 const unsigned char *addr)
426{
427 struct dpsw_fdb_unicast_cfg entry = {0};
428 u16 fdb_id;
429 int err;
430
431 entry.if_egress = port_priv->idx;
432 entry.type = DPSW_FDB_ENTRY_STATIC;
433 ether_addr_copy(entry.mac_addr, addr);
434
435 fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
436 err = dpsw_fdb_remove_unicast(port_priv->ethsw_data->mc_io, 0,
437 port_priv->ethsw_data->dpsw_handle,
438 fdb_id, &entry);
439
440 if (err && err != -ENXIO)
441 netdev_err(port_priv->netdev,
442 "dpsw_fdb_remove_unicast err %d\n", err);
443 return err;
444}
445
446static int dpaa2_switch_port_fdb_add_mc(struct ethsw_port_priv *port_priv,
447 const unsigned char *addr)
448{
449 struct dpsw_fdb_multicast_cfg entry = {0};
450 u16 fdb_id;
451 int err;
452
453 ether_addr_copy(entry.mac_addr, addr);
454 entry.type = DPSW_FDB_ENTRY_STATIC;
455 entry.num_ifs = 1;
456 entry.if_id[0] = port_priv->idx;
457
458 fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
459 err = dpsw_fdb_add_multicast(port_priv->ethsw_data->mc_io, 0,
460 port_priv->ethsw_data->dpsw_handle,
461 fdb_id, &entry);
462
463 if (err && err != -ENXIO)
464 netdev_err(port_priv->netdev, "dpsw_fdb_add_multicast err %d\n",
465 err);
466 return err;
467}
468
469static int dpaa2_switch_port_fdb_del_mc(struct ethsw_port_priv *port_priv,
470 const unsigned char *addr)
471{
472 struct dpsw_fdb_multicast_cfg entry = {0};
473 u16 fdb_id;
474 int err;
475
476 ether_addr_copy(entry.mac_addr, addr);
477 entry.type = DPSW_FDB_ENTRY_STATIC;
478 entry.num_ifs = 1;
479 entry.if_id[0] = port_priv->idx;
480
481 fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
482 err = dpsw_fdb_remove_multicast(port_priv->ethsw_data->mc_io, 0,
483 port_priv->ethsw_data->dpsw_handle,
484 fdb_id, &entry);
485
486 if (err && err != -ENAVAIL)
487 netdev_err(port_priv->netdev,
488 "dpsw_fdb_remove_multicast err %d\n", err);
489 return err;
490}
491
492static void dpaa2_switch_port_get_stats(struct net_device *netdev,
493 struct rtnl_link_stats64 *stats)
494{
495 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
496 u64 tmp;
497 int err;
498
499 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
500 port_priv->ethsw_data->dpsw_handle,
501 port_priv->idx,
502 DPSW_CNT_ING_FRAME, &stats->rx_packets);
503 if (err)
504 goto error;
505
506 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
507 port_priv->ethsw_data->dpsw_handle,
508 port_priv->idx,
509 DPSW_CNT_EGR_FRAME, &stats->tx_packets);
510 if (err)
511 goto error;
512
513 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
514 port_priv->ethsw_data->dpsw_handle,
515 port_priv->idx,
516 DPSW_CNT_ING_BYTE, &stats->rx_bytes);
517 if (err)
518 goto error;
519
520 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
521 port_priv->ethsw_data->dpsw_handle,
522 port_priv->idx,
523 DPSW_CNT_EGR_BYTE, &stats->tx_bytes);
524 if (err)
525 goto error;
526
527 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
528 port_priv->ethsw_data->dpsw_handle,
529 port_priv->idx,
530 DPSW_CNT_ING_FRAME_DISCARD,
531 &stats->rx_dropped);
532 if (err)
533 goto error;
534
535 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
536 port_priv->ethsw_data->dpsw_handle,
537 port_priv->idx,
538 DPSW_CNT_ING_FLTR_FRAME,
539 &tmp);
540 if (err)
541 goto error;
542 stats->rx_dropped += tmp;
543
544 err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0,
545 port_priv->ethsw_data->dpsw_handle,
546 port_priv->idx,
547 DPSW_CNT_EGR_FRAME_DISCARD,
548 &stats->tx_dropped);
549 if (err)
550 goto error;
551
552 return;
553
554error:
555 netdev_err(netdev, "dpsw_if_get_counter err %d\n", err);
556}
557
558static bool dpaa2_switch_port_has_offload_stats(const struct net_device *netdev,
559 int attr_id)
560{
561 return (attr_id == IFLA_OFFLOAD_XSTATS_CPU_HIT);
562}
563
564static int dpaa2_switch_port_get_offload_stats(int attr_id,
565 const struct net_device *netdev,
566 void *sp)
567{
568 switch (attr_id) {
569 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
570 dpaa2_switch_port_get_stats((struct net_device *)netdev, sp);
571 return 0;
572 }
573
574 return -EINVAL;
575}
576
577static int dpaa2_switch_port_change_mtu(struct net_device *netdev, int mtu)
578{
579 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
580 int err;
581
582 err = dpsw_if_set_max_frame_length(port_priv->ethsw_data->mc_io,
583 0,
584 port_priv->ethsw_data->dpsw_handle,
585 port_priv->idx,
586 (u16)ETHSW_L2_MAX_FRM(mtu));
587 if (err) {
588 netdev_err(netdev,
589 "dpsw_if_set_max_frame_length() err %d\n", err);
590 return err;
591 }
592
593 netdev->mtu = mtu;
594 return 0;
595}
596
597static int dpaa2_switch_port_link_state_update(struct net_device *netdev)
598{
599 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
600 struct dpsw_link_state state;
601 int err;
602
603
604
605
606 if (dpaa2_switch_port_is_type_phy(port_priv))
607 return 0;
608
609
610
611
612 if (!netif_running(netdev))
613 return 0;
614
615 err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,
616 port_priv->ethsw_data->dpsw_handle,
617 port_priv->idx, &state);
618 if (err) {
619 netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err);
620 return err;
621 }
622
623 WARN_ONCE(state.up > 1, "Garbage read into link_state");
624
625 if (state.up != port_priv->link_state) {
626 if (state.up) {
627 netif_carrier_on(netdev);
628 netif_tx_start_all_queues(netdev);
629 } else {
630 netif_carrier_off(netdev);
631 netif_tx_stop_all_queues(netdev);
632 }
633 port_priv->link_state = state.up;
634 }
635
636 return 0;
637}
638
639
640
641
642
643
644
645
646static void dpaa2_switch_enable_ctrl_if_napi(struct ethsw_core *ethsw)
647{
648 int i;
649
650
651 ASSERT_RTNL();
652
653
654 ethsw->napi_users++;
655
656
657 if (ethsw->napi_users > 1)
658 return;
659
660 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++)
661 napi_enable(ðsw->fq[i].napi);
662}
663
664static void dpaa2_switch_disable_ctrl_if_napi(struct ethsw_core *ethsw)
665{
666 int i;
667
668
669 ASSERT_RTNL();
670
671
672 ethsw->napi_users--;
673 if (ethsw->napi_users)
674 return;
675
676 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++)
677 napi_disable(ðsw->fq[i].napi);
678}
679
680static int dpaa2_switch_port_open(struct net_device *netdev)
681{
682 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
683 struct ethsw_core *ethsw = port_priv->ethsw_data;
684 int err;
685
686 if (!dpaa2_switch_port_is_type_phy(port_priv)) {
687
688
689
690
691
692 netif_carrier_off(netdev);
693 }
694
695 err = dpsw_if_enable(port_priv->ethsw_data->mc_io, 0,
696 port_priv->ethsw_data->dpsw_handle,
697 port_priv->idx);
698 if (err) {
699 netdev_err(netdev, "dpsw_if_enable err %d\n", err);
700 return err;
701 }
702
703 dpaa2_switch_enable_ctrl_if_napi(ethsw);
704
705 if (dpaa2_switch_port_is_type_phy(port_priv))
706 phylink_start(port_priv->mac->phylink);
707
708 return 0;
709}
710
711static int dpaa2_switch_port_stop(struct net_device *netdev)
712{
713 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
714 struct ethsw_core *ethsw = port_priv->ethsw_data;
715 int err;
716
717 if (dpaa2_switch_port_is_type_phy(port_priv)) {
718 phylink_stop(port_priv->mac->phylink);
719 } else {
720 netif_tx_stop_all_queues(netdev);
721 netif_carrier_off(netdev);
722 }
723
724 err = dpsw_if_disable(port_priv->ethsw_data->mc_io, 0,
725 port_priv->ethsw_data->dpsw_handle,
726 port_priv->idx);
727 if (err) {
728 netdev_err(netdev, "dpsw_if_disable err %d\n", err);
729 return err;
730 }
731
732 dpaa2_switch_disable_ctrl_if_napi(ethsw);
733
734 return 0;
735}
736
737static int dpaa2_switch_port_parent_id(struct net_device *dev,
738 struct netdev_phys_item_id *ppid)
739{
740 struct ethsw_port_priv *port_priv = netdev_priv(dev);
741
742 ppid->id_len = 1;
743 ppid->id[0] = port_priv->ethsw_data->dev_id;
744
745 return 0;
746}
747
748static int dpaa2_switch_port_get_phys_name(struct net_device *netdev, char *name,
749 size_t len)
750{
751 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
752 int err;
753
754 err = snprintf(name, len, "p%d", port_priv->idx);
755 if (err >= len)
756 return -EINVAL;
757
758 return 0;
759}
760
761struct ethsw_dump_ctx {
762 struct net_device *dev;
763 struct sk_buff *skb;
764 struct netlink_callback *cb;
765 int idx;
766};
767
768static int dpaa2_switch_fdb_dump_nl(struct fdb_dump_entry *entry,
769 struct ethsw_dump_ctx *dump)
770{
771 int is_dynamic = entry->type & DPSW_FDB_ENTRY_DINAMIC;
772 u32 portid = NETLINK_CB(dump->cb->skb).portid;
773 u32 seq = dump->cb->nlh->nlmsg_seq;
774 struct nlmsghdr *nlh;
775 struct ndmsg *ndm;
776
777 if (dump->idx < dump->cb->args[2])
778 goto skip;
779
780 nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH,
781 sizeof(*ndm), NLM_F_MULTI);
782 if (!nlh)
783 return -EMSGSIZE;
784
785 ndm = nlmsg_data(nlh);
786 ndm->ndm_family = AF_BRIDGE;
787 ndm->ndm_pad1 = 0;
788 ndm->ndm_pad2 = 0;
789 ndm->ndm_flags = NTF_SELF;
790 ndm->ndm_type = 0;
791 ndm->ndm_ifindex = dump->dev->ifindex;
792 ndm->ndm_state = is_dynamic ? NUD_REACHABLE : NUD_NOARP;
793
794 if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, entry->mac_addr))
795 goto nla_put_failure;
796
797 nlmsg_end(dump->skb, nlh);
798
799skip:
800 dump->idx++;
801 return 0;
802
803nla_put_failure:
804 nlmsg_cancel(dump->skb, nlh);
805 return -EMSGSIZE;
806}
807
808static int dpaa2_switch_port_fdb_valid_entry(struct fdb_dump_entry *entry,
809 struct ethsw_port_priv *port_priv)
810{
811 int idx = port_priv->idx;
812 int valid;
813
814 if (entry->type & DPSW_FDB_ENTRY_TYPE_UNICAST)
815 valid = entry->if_info == port_priv->idx;
816 else
817 valid = entry->if_mask[idx / 8] & BIT(idx % 8);
818
819 return valid;
820}
821
822static int dpaa2_switch_fdb_iterate(struct ethsw_port_priv *port_priv,
823 dpaa2_switch_fdb_cb_t cb, void *data)
824{
825 struct net_device *net_dev = port_priv->netdev;
826 struct ethsw_core *ethsw = port_priv->ethsw_data;
827 struct device *dev = net_dev->dev.parent;
828 struct fdb_dump_entry *fdb_entries;
829 struct fdb_dump_entry fdb_entry;
830 dma_addr_t fdb_dump_iova;
831 u16 num_fdb_entries;
832 u32 fdb_dump_size;
833 int err = 0, i;
834 u8 *dma_mem;
835 u16 fdb_id;
836
837 fdb_dump_size = ethsw->sw_attr.max_fdb_entries * sizeof(fdb_entry);
838 dma_mem = kzalloc(fdb_dump_size, GFP_KERNEL);
839 if (!dma_mem)
840 return -ENOMEM;
841
842 fdb_dump_iova = dma_map_single(dev, dma_mem, fdb_dump_size,
843 DMA_FROM_DEVICE);
844 if (dma_mapping_error(dev, fdb_dump_iova)) {
845 netdev_err(net_dev, "dma_map_single() failed\n");
846 err = -ENOMEM;
847 goto err_map;
848 }
849
850 fdb_id = dpaa2_switch_port_get_fdb_id(port_priv);
851 err = dpsw_fdb_dump(ethsw->mc_io, 0, ethsw->dpsw_handle, fdb_id,
852 fdb_dump_iova, fdb_dump_size, &num_fdb_entries);
853 if (err) {
854 netdev_err(net_dev, "dpsw_fdb_dump() = %d\n", err);
855 goto err_dump;
856 }
857
858 dma_unmap_single(dev, fdb_dump_iova, fdb_dump_size, DMA_FROM_DEVICE);
859
860 fdb_entries = (struct fdb_dump_entry *)dma_mem;
861 for (i = 0; i < num_fdb_entries; i++) {
862 fdb_entry = fdb_entries[i];
863
864 err = cb(port_priv, &fdb_entry, data);
865 if (err)
866 goto end;
867 }
868
869end:
870 kfree(dma_mem);
871
872 return 0;
873
874err_dump:
875 dma_unmap_single(dev, fdb_dump_iova, fdb_dump_size, DMA_TO_DEVICE);
876err_map:
877 kfree(dma_mem);
878 return err;
879}
880
881static int dpaa2_switch_fdb_entry_dump(struct ethsw_port_priv *port_priv,
882 struct fdb_dump_entry *fdb_entry,
883 void *data)
884{
885 if (!dpaa2_switch_port_fdb_valid_entry(fdb_entry, port_priv))
886 return 0;
887
888 return dpaa2_switch_fdb_dump_nl(fdb_entry, data);
889}
890
891static int dpaa2_switch_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
892 struct net_device *net_dev,
893 struct net_device *filter_dev, int *idx)
894{
895 struct ethsw_port_priv *port_priv = netdev_priv(net_dev);
896 struct ethsw_dump_ctx dump = {
897 .dev = net_dev,
898 .skb = skb,
899 .cb = cb,
900 .idx = *idx,
901 };
902 int err;
903
904 err = dpaa2_switch_fdb_iterate(port_priv, dpaa2_switch_fdb_entry_dump, &dump);
905 *idx = dump.idx;
906
907 return err;
908}
909
910static int dpaa2_switch_fdb_entry_fast_age(struct ethsw_port_priv *port_priv,
911 struct fdb_dump_entry *fdb_entry,
912 void *data __always_unused)
913{
914 if (!dpaa2_switch_port_fdb_valid_entry(fdb_entry, port_priv))
915 return 0;
916
917 if (!(fdb_entry->type & DPSW_FDB_ENTRY_TYPE_DYNAMIC))
918 return 0;
919
920 if (fdb_entry->type & DPSW_FDB_ENTRY_TYPE_UNICAST)
921 dpaa2_switch_port_fdb_del_uc(port_priv, fdb_entry->mac_addr);
922 else
923 dpaa2_switch_port_fdb_del_mc(port_priv, fdb_entry->mac_addr);
924
925 return 0;
926}
927
928static void dpaa2_switch_port_fast_age(struct ethsw_port_priv *port_priv)
929{
930 dpaa2_switch_fdb_iterate(port_priv,
931 dpaa2_switch_fdb_entry_fast_age, NULL);
932}
933
934static int dpaa2_switch_port_vlan_add(struct net_device *netdev, __be16 proto,
935 u16 vid)
936{
937 struct switchdev_obj_port_vlan vlan = {
938 .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
939 .vid = vid,
940 .obj.orig_dev = netdev,
941
942 .flags = 0,
943 };
944
945 return dpaa2_switch_port_vlans_add(netdev, &vlan);
946}
947
948static int dpaa2_switch_port_vlan_kill(struct net_device *netdev, __be16 proto,
949 u16 vid)
950{
951 struct switchdev_obj_port_vlan vlan = {
952 .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
953 .vid = vid,
954 .obj.orig_dev = netdev,
955
956 .flags = 0,
957 };
958
959 return dpaa2_switch_port_vlans_del(netdev, &vlan);
960}
961
962static int dpaa2_switch_port_set_mac_addr(struct ethsw_port_priv *port_priv)
963{
964 struct ethsw_core *ethsw = port_priv->ethsw_data;
965 struct net_device *net_dev = port_priv->netdev;
966 struct device *dev = net_dev->dev.parent;
967 u8 mac_addr[ETH_ALEN];
968 int err;
969
970 if (!(ethsw->features & ETHSW_FEATURE_MAC_ADDR))
971 return 0;
972
973
974 err = dpsw_if_get_port_mac_addr(ethsw->mc_io, 0, ethsw->dpsw_handle,
975 port_priv->idx, mac_addr);
976 if (err) {
977 dev_err(dev, "dpsw_if_get_port_mac_addr() failed\n");
978 return err;
979 }
980
981
982 if (!is_zero_ether_addr(mac_addr)) {
983 memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len);
984 } else {
985
986
987
988 eth_hw_addr_random(net_dev);
989 dev_dbg_once(dev, "device(s) have all-zero hwaddr, replaced with random\n");
990
991
992
993
994
995
996 net_dev->addr_assign_type = NET_ADDR_PERM;
997 }
998
999 return 0;
1000}
1001
1002static void dpaa2_switch_free_fd(const struct ethsw_core *ethsw,
1003 const struct dpaa2_fd *fd)
1004{
1005 struct device *dev = ethsw->dev;
1006 unsigned char *buffer_start;
1007 struct sk_buff **skbh, *skb;
1008 dma_addr_t fd_addr;
1009
1010 fd_addr = dpaa2_fd_get_addr(fd);
1011 skbh = dpaa2_iova_to_virt(ethsw->iommu_domain, fd_addr);
1012
1013 skb = *skbh;
1014 buffer_start = (unsigned char *)skbh;
1015
1016 dma_unmap_single(dev, fd_addr,
1017 skb_tail_pointer(skb) - buffer_start,
1018 DMA_TO_DEVICE);
1019
1020
1021 dev_kfree_skb(skb);
1022}
1023
1024static int dpaa2_switch_build_single_fd(struct ethsw_core *ethsw,
1025 struct sk_buff *skb,
1026 struct dpaa2_fd *fd)
1027{
1028 struct device *dev = ethsw->dev;
1029 struct sk_buff **skbh;
1030 dma_addr_t addr;
1031 u8 *buff_start;
1032 void *hwa;
1033
1034 buff_start = PTR_ALIGN(skb->data - DPAA2_SWITCH_TX_DATA_OFFSET -
1035 DPAA2_SWITCH_TX_BUF_ALIGN,
1036 DPAA2_SWITCH_TX_BUF_ALIGN);
1037
1038
1039
1040
1041
1042 hwa = buff_start + DPAA2_SWITCH_SWA_SIZE;
1043 memset(hwa, 0, 8);
1044
1045
1046
1047
1048
1049 skbh = (struct sk_buff **)buff_start;
1050 *skbh = skb;
1051
1052 addr = dma_map_single(dev, buff_start,
1053 skb_tail_pointer(skb) - buff_start,
1054 DMA_TO_DEVICE);
1055 if (unlikely(dma_mapping_error(dev, addr)))
1056 return -ENOMEM;
1057
1058
1059 memset(fd, 0, sizeof(*fd));
1060
1061 dpaa2_fd_set_addr(fd, addr);
1062 dpaa2_fd_set_offset(fd, (u16)(skb->data - buff_start));
1063 dpaa2_fd_set_len(fd, skb->len);
1064 dpaa2_fd_set_format(fd, dpaa2_fd_single);
1065
1066 return 0;
1067}
1068
1069static netdev_tx_t dpaa2_switch_port_tx(struct sk_buff *skb,
1070 struct net_device *net_dev)
1071{
1072 struct ethsw_port_priv *port_priv = netdev_priv(net_dev);
1073 struct ethsw_core *ethsw = port_priv->ethsw_data;
1074 int retries = DPAA2_SWITCH_SWP_BUSY_RETRIES;
1075 struct dpaa2_fd fd;
1076 int err;
1077
1078 if (unlikely(skb_headroom(skb) < DPAA2_SWITCH_NEEDED_HEADROOM)) {
1079 struct sk_buff *ns;
1080
1081 ns = skb_realloc_headroom(skb, DPAA2_SWITCH_NEEDED_HEADROOM);
1082 if (unlikely(!ns)) {
1083 net_err_ratelimited("%s: Error reallocating skb headroom\n", net_dev->name);
1084 goto err_free_skb;
1085 }
1086 dev_consume_skb_any(skb);
1087 skb = ns;
1088 }
1089
1090
1091 skb = skb_unshare(skb, GFP_ATOMIC);
1092 if (unlikely(!skb)) {
1093
1094 net_err_ratelimited("%s: Error copying the socket buffer\n", net_dev->name);
1095 goto err_exit;
1096 }
1097
1098
1099
1100
1101 err = skb_linearize(skb);
1102 if (err) {
1103 net_err_ratelimited("%s: skb_linearize error (%d)!\n", net_dev->name, err);
1104 goto err_free_skb;
1105 }
1106
1107 err = dpaa2_switch_build_single_fd(ethsw, skb, &fd);
1108 if (unlikely(err)) {
1109 net_err_ratelimited("%s: ethsw_build_*_fd() %d\n", net_dev->name, err);
1110 goto err_free_skb;
1111 }
1112
1113 do {
1114 err = dpaa2_io_service_enqueue_qd(NULL,
1115 port_priv->tx_qdid,
1116 8, 0, &fd);
1117 retries--;
1118 } while (err == -EBUSY && retries);
1119
1120 if (unlikely(err < 0)) {
1121 dpaa2_switch_free_fd(ethsw, &fd);
1122 goto err_exit;
1123 }
1124
1125 return NETDEV_TX_OK;
1126
1127err_free_skb:
1128 dev_kfree_skb(skb);
1129err_exit:
1130 return NETDEV_TX_OK;
1131}
1132
1133static int
1134dpaa2_switch_setup_tc_cls_flower(struct dpaa2_switch_filter_block *filter_block,
1135 struct flow_cls_offload *f)
1136{
1137 switch (f->command) {
1138 case FLOW_CLS_REPLACE:
1139 return dpaa2_switch_cls_flower_replace(filter_block, f);
1140 case FLOW_CLS_DESTROY:
1141 return dpaa2_switch_cls_flower_destroy(filter_block, f);
1142 default:
1143 return -EOPNOTSUPP;
1144 }
1145}
1146
1147static int
1148dpaa2_switch_setup_tc_cls_matchall(struct dpaa2_switch_filter_block *block,
1149 struct tc_cls_matchall_offload *f)
1150{
1151 switch (f->command) {
1152 case TC_CLSMATCHALL_REPLACE:
1153 return dpaa2_switch_cls_matchall_replace(block, f);
1154 case TC_CLSMATCHALL_DESTROY:
1155 return dpaa2_switch_cls_matchall_destroy(block, f);
1156 default:
1157 return -EOPNOTSUPP;
1158 }
1159}
1160
1161static int dpaa2_switch_port_setup_tc_block_cb_ig(enum tc_setup_type type,
1162 void *type_data,
1163 void *cb_priv)
1164{
1165 switch (type) {
1166 case TC_SETUP_CLSFLOWER:
1167 return dpaa2_switch_setup_tc_cls_flower(cb_priv, type_data);
1168 case TC_SETUP_CLSMATCHALL:
1169 return dpaa2_switch_setup_tc_cls_matchall(cb_priv, type_data);
1170 default:
1171 return -EOPNOTSUPP;
1172 }
1173}
1174
1175static LIST_HEAD(dpaa2_switch_block_cb_list);
1176
1177static int
1178dpaa2_switch_port_acl_tbl_bind(struct ethsw_port_priv *port_priv,
1179 struct dpaa2_switch_filter_block *block)
1180{
1181 struct ethsw_core *ethsw = port_priv->ethsw_data;
1182 struct net_device *netdev = port_priv->netdev;
1183 struct dpsw_acl_if_cfg acl_if_cfg;
1184 int err;
1185
1186 if (port_priv->filter_block)
1187 return -EINVAL;
1188
1189 acl_if_cfg.if_id[0] = port_priv->idx;
1190 acl_if_cfg.num_ifs = 1;
1191 err = dpsw_acl_add_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
1192 block->acl_id, &acl_if_cfg);
1193 if (err) {
1194 netdev_err(netdev, "dpsw_acl_add_if err %d\n", err);
1195 return err;
1196 }
1197
1198 block->ports |= BIT(port_priv->idx);
1199 port_priv->filter_block = block;
1200
1201 return 0;
1202}
1203
1204static int
1205dpaa2_switch_port_acl_tbl_unbind(struct ethsw_port_priv *port_priv,
1206 struct dpaa2_switch_filter_block *block)
1207{
1208 struct ethsw_core *ethsw = port_priv->ethsw_data;
1209 struct net_device *netdev = port_priv->netdev;
1210 struct dpsw_acl_if_cfg acl_if_cfg;
1211 int err;
1212
1213 if (port_priv->filter_block != block)
1214 return -EINVAL;
1215
1216 acl_if_cfg.if_id[0] = port_priv->idx;
1217 acl_if_cfg.num_ifs = 1;
1218 err = dpsw_acl_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
1219 block->acl_id, &acl_if_cfg);
1220 if (err) {
1221 netdev_err(netdev, "dpsw_acl_add_if err %d\n", err);
1222 return err;
1223 }
1224
1225 block->ports &= ~BIT(port_priv->idx);
1226 port_priv->filter_block = NULL;
1227 return 0;
1228}
1229
1230static int dpaa2_switch_port_block_bind(struct ethsw_port_priv *port_priv,
1231 struct dpaa2_switch_filter_block *block)
1232{
1233 struct dpaa2_switch_filter_block *old_block = port_priv->filter_block;
1234 int err;
1235
1236
1237
1238
1239 err = dpaa2_switch_block_offload_mirror(block, port_priv);
1240 if (err)
1241 return err;
1242
1243
1244
1245
1246 if (port_priv->filter_block == block)
1247 return 0;
1248
1249 err = dpaa2_switch_port_acl_tbl_unbind(port_priv, old_block);
1250 if (err)
1251 return err;
1252
1253
1254
1255
1256 if (old_block->ports == 0)
1257 old_block->in_use = false;
1258
1259 return dpaa2_switch_port_acl_tbl_bind(port_priv, block);
1260}
1261
1262static int
1263dpaa2_switch_port_block_unbind(struct ethsw_port_priv *port_priv,
1264 struct dpaa2_switch_filter_block *block)
1265{
1266 struct ethsw_core *ethsw = port_priv->ethsw_data;
1267 struct dpaa2_switch_filter_block *new_block;
1268 int err;
1269
1270
1271
1272
1273 err = dpaa2_switch_block_unoffload_mirror(block, port_priv);
1274 if (err)
1275 return err;
1276
1277
1278
1279
1280 if (block->ports == BIT(port_priv->idx))
1281 return 0;
1282
1283 err = dpaa2_switch_port_acl_tbl_unbind(port_priv, block);
1284 if (err)
1285 return err;
1286
1287 if (block->ports == 0)
1288 block->in_use = false;
1289
1290 new_block = dpaa2_switch_filter_block_get_unused(ethsw);
1291 new_block->in_use = true;
1292 return dpaa2_switch_port_acl_tbl_bind(port_priv, new_block);
1293}
1294
1295static int dpaa2_switch_setup_tc_block_bind(struct net_device *netdev,
1296 struct flow_block_offload *f)
1297{
1298 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1299 struct ethsw_core *ethsw = port_priv->ethsw_data;
1300 struct dpaa2_switch_filter_block *filter_block;
1301 struct flow_block_cb *block_cb;
1302 bool register_block = false;
1303 int err;
1304
1305 block_cb = flow_block_cb_lookup(f->block,
1306 dpaa2_switch_port_setup_tc_block_cb_ig,
1307 ethsw);
1308
1309 if (!block_cb) {
1310
1311
1312
1313
1314 filter_block = port_priv->filter_block;
1315
1316 block_cb = flow_block_cb_alloc(dpaa2_switch_port_setup_tc_block_cb_ig,
1317 ethsw, filter_block, NULL);
1318 if (IS_ERR(block_cb))
1319 return PTR_ERR(block_cb);
1320
1321 register_block = true;
1322 } else {
1323 filter_block = flow_block_cb_priv(block_cb);
1324 }
1325
1326 flow_block_cb_incref(block_cb);
1327 err = dpaa2_switch_port_block_bind(port_priv, filter_block);
1328 if (err)
1329 goto err_block_bind;
1330
1331 if (register_block) {
1332 flow_block_cb_add(block_cb, f);
1333 list_add_tail(&block_cb->driver_list,
1334 &dpaa2_switch_block_cb_list);
1335 }
1336
1337 return 0;
1338
1339err_block_bind:
1340 if (!flow_block_cb_decref(block_cb))
1341 flow_block_cb_free(block_cb);
1342 return err;
1343}
1344
1345static void dpaa2_switch_setup_tc_block_unbind(struct net_device *netdev,
1346 struct flow_block_offload *f)
1347{
1348 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1349 struct ethsw_core *ethsw = port_priv->ethsw_data;
1350 struct dpaa2_switch_filter_block *filter_block;
1351 struct flow_block_cb *block_cb;
1352 int err;
1353
1354 block_cb = flow_block_cb_lookup(f->block,
1355 dpaa2_switch_port_setup_tc_block_cb_ig,
1356 ethsw);
1357 if (!block_cb)
1358 return;
1359
1360 filter_block = flow_block_cb_priv(block_cb);
1361 err = dpaa2_switch_port_block_unbind(port_priv, filter_block);
1362 if (!err && !flow_block_cb_decref(block_cb)) {
1363 flow_block_cb_remove(block_cb, f);
1364 list_del(&block_cb->driver_list);
1365 }
1366}
1367
1368static int dpaa2_switch_setup_tc_block(struct net_device *netdev,
1369 struct flow_block_offload *f)
1370{
1371 if (f->binder_type != FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
1372 return -EOPNOTSUPP;
1373
1374 f->driver_block_list = &dpaa2_switch_block_cb_list;
1375
1376 switch (f->command) {
1377 case FLOW_BLOCK_BIND:
1378 return dpaa2_switch_setup_tc_block_bind(netdev, f);
1379 case FLOW_BLOCK_UNBIND:
1380 dpaa2_switch_setup_tc_block_unbind(netdev, f);
1381 return 0;
1382 default:
1383 return -EOPNOTSUPP;
1384 }
1385}
1386
1387static int dpaa2_switch_port_setup_tc(struct net_device *netdev,
1388 enum tc_setup_type type,
1389 void *type_data)
1390{
1391 switch (type) {
1392 case TC_SETUP_BLOCK: {
1393 return dpaa2_switch_setup_tc_block(netdev, type_data);
1394 }
1395 default:
1396 return -EOPNOTSUPP;
1397 }
1398
1399 return 0;
1400}
1401
1402static const struct net_device_ops dpaa2_switch_port_ops = {
1403 .ndo_open = dpaa2_switch_port_open,
1404 .ndo_stop = dpaa2_switch_port_stop,
1405
1406 .ndo_set_mac_address = eth_mac_addr,
1407 .ndo_get_stats64 = dpaa2_switch_port_get_stats,
1408 .ndo_change_mtu = dpaa2_switch_port_change_mtu,
1409 .ndo_has_offload_stats = dpaa2_switch_port_has_offload_stats,
1410 .ndo_get_offload_stats = dpaa2_switch_port_get_offload_stats,
1411 .ndo_fdb_dump = dpaa2_switch_port_fdb_dump,
1412 .ndo_vlan_rx_add_vid = dpaa2_switch_port_vlan_add,
1413 .ndo_vlan_rx_kill_vid = dpaa2_switch_port_vlan_kill,
1414
1415 .ndo_start_xmit = dpaa2_switch_port_tx,
1416 .ndo_get_port_parent_id = dpaa2_switch_port_parent_id,
1417 .ndo_get_phys_port_name = dpaa2_switch_port_get_phys_name,
1418 .ndo_setup_tc = dpaa2_switch_port_setup_tc,
1419};
1420
1421bool dpaa2_switch_port_dev_check(const struct net_device *netdev)
1422{
1423 return netdev->netdev_ops == &dpaa2_switch_port_ops;
1424}
1425
1426static int dpaa2_switch_port_connect_mac(struct ethsw_port_priv *port_priv)
1427{
1428 struct fsl_mc_device *dpsw_port_dev, *dpmac_dev;
1429 struct dpaa2_mac *mac;
1430 int err;
1431
1432 dpsw_port_dev = to_fsl_mc_device(port_priv->netdev->dev.parent);
1433 dpmac_dev = fsl_mc_get_endpoint(dpsw_port_dev, port_priv->idx);
1434
1435 if (PTR_ERR(dpmac_dev) == -EPROBE_DEFER)
1436 return PTR_ERR(dpmac_dev);
1437
1438 if (IS_ERR(dpmac_dev) || dpmac_dev->dev.type != &fsl_mc_bus_dpmac_type)
1439 return 0;
1440
1441 mac = kzalloc(sizeof(*mac), GFP_KERNEL);
1442 if (!mac)
1443 return -ENOMEM;
1444
1445 mac->mc_dev = dpmac_dev;
1446 mac->mc_io = port_priv->ethsw_data->mc_io;
1447 mac->net_dev = port_priv->netdev;
1448
1449 err = dpaa2_mac_open(mac);
1450 if (err)
1451 goto err_free_mac;
1452 port_priv->mac = mac;
1453
1454 if (dpaa2_switch_port_is_type_phy(port_priv)) {
1455 err = dpaa2_mac_connect(mac);
1456 if (err) {
1457 netdev_err(port_priv->netdev,
1458 "Error connecting to the MAC endpoint %pe\n",
1459 ERR_PTR(err));
1460 goto err_close_mac;
1461 }
1462 }
1463
1464 return 0;
1465
1466err_close_mac:
1467 dpaa2_mac_close(mac);
1468 port_priv->mac = NULL;
1469err_free_mac:
1470 kfree(mac);
1471 return err;
1472}
1473
1474static void dpaa2_switch_port_disconnect_mac(struct ethsw_port_priv *port_priv)
1475{
1476 if (dpaa2_switch_port_is_type_phy(port_priv))
1477 dpaa2_mac_disconnect(port_priv->mac);
1478
1479 if (!dpaa2_switch_port_has_mac(port_priv))
1480 return;
1481
1482 dpaa2_mac_close(port_priv->mac);
1483 kfree(port_priv->mac);
1484 port_priv->mac = NULL;
1485}
1486
1487static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg)
1488{
1489 struct device *dev = (struct device *)arg;
1490 struct ethsw_core *ethsw = dev_get_drvdata(dev);
1491 struct ethsw_port_priv *port_priv;
1492 u32 status = ~0;
1493 int err, if_id;
1494
1495 err = dpsw_get_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
1496 DPSW_IRQ_INDEX_IF, &status);
1497 if (err) {
1498 dev_err(dev, "Can't get irq status (err %d)\n", err);
1499 goto out;
1500 }
1501
1502 if_id = (status & 0xFFFF0000) >> 16;
1503 port_priv = ethsw->ports[if_id];
1504
1505 if (status & DPSW_IRQ_EVENT_LINK_CHANGED) {
1506 dpaa2_switch_port_link_state_update(port_priv->netdev);
1507 dpaa2_switch_port_set_mac_addr(port_priv);
1508 }
1509
1510 if (status & DPSW_IRQ_EVENT_ENDPOINT_CHANGED) {
1511 rtnl_lock();
1512 if (dpaa2_switch_port_has_mac(port_priv))
1513 dpaa2_switch_port_disconnect_mac(port_priv);
1514 else
1515 dpaa2_switch_port_connect_mac(port_priv);
1516 rtnl_unlock();
1517 }
1518
1519out:
1520 err = dpsw_clear_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle,
1521 DPSW_IRQ_INDEX_IF, status);
1522 if (err)
1523 dev_err(dev, "Can't clear irq status (err %d)\n", err);
1524
1525 return IRQ_HANDLED;
1526}
1527
1528static int dpaa2_switch_setup_irqs(struct fsl_mc_device *sw_dev)
1529{
1530 struct device *dev = &sw_dev->dev;
1531 struct ethsw_core *ethsw = dev_get_drvdata(dev);
1532 u32 mask = DPSW_IRQ_EVENT_LINK_CHANGED;
1533 struct fsl_mc_device_irq *irq;
1534 int err;
1535
1536 err = fsl_mc_allocate_irqs(sw_dev);
1537 if (err) {
1538 dev_err(dev, "MC irqs allocation failed\n");
1539 return err;
1540 }
1541
1542 if (WARN_ON(sw_dev->obj_desc.irq_count != DPSW_IRQ_NUM)) {
1543 err = -EINVAL;
1544 goto free_irq;
1545 }
1546
1547 err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
1548 DPSW_IRQ_INDEX_IF, 0);
1549 if (err) {
1550 dev_err(dev, "dpsw_set_irq_enable err %d\n", err);
1551 goto free_irq;
1552 }
1553
1554 irq = sw_dev->irqs[DPSW_IRQ_INDEX_IF];
1555
1556 err = devm_request_threaded_irq(dev, irq->msi_desc->irq,
1557 NULL,
1558 dpaa2_switch_irq0_handler_thread,
1559 IRQF_NO_SUSPEND | IRQF_ONESHOT,
1560 dev_name(dev), dev);
1561 if (err) {
1562 dev_err(dev, "devm_request_threaded_irq(): %d\n", err);
1563 goto free_irq;
1564 }
1565
1566 err = dpsw_set_irq_mask(ethsw->mc_io, 0, ethsw->dpsw_handle,
1567 DPSW_IRQ_INDEX_IF, mask);
1568 if (err) {
1569 dev_err(dev, "dpsw_set_irq_mask(): %d\n", err);
1570 goto free_devm_irq;
1571 }
1572
1573 err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
1574 DPSW_IRQ_INDEX_IF, 1);
1575 if (err) {
1576 dev_err(dev, "dpsw_set_irq_enable(): %d\n", err);
1577 goto free_devm_irq;
1578 }
1579
1580 return 0;
1581
1582free_devm_irq:
1583 devm_free_irq(dev, irq->msi_desc->irq, dev);
1584free_irq:
1585 fsl_mc_free_irqs(sw_dev);
1586 return err;
1587}
1588
1589static void dpaa2_switch_teardown_irqs(struct fsl_mc_device *sw_dev)
1590{
1591 struct device *dev = &sw_dev->dev;
1592 struct ethsw_core *ethsw = dev_get_drvdata(dev);
1593 int err;
1594
1595 err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle,
1596 DPSW_IRQ_INDEX_IF, 0);
1597 if (err)
1598 dev_err(dev, "dpsw_set_irq_enable err %d\n", err);
1599
1600 fsl_mc_free_irqs(sw_dev);
1601}
1602
1603static int dpaa2_switch_port_set_learning(struct ethsw_port_priv *port_priv, bool enable)
1604{
1605 struct ethsw_core *ethsw = port_priv->ethsw_data;
1606 enum dpsw_learning_mode learn_mode;
1607 int err;
1608
1609 if (enable)
1610 learn_mode = DPSW_LEARNING_MODE_HW;
1611 else
1612 learn_mode = DPSW_LEARNING_MODE_DIS;
1613
1614 err = dpsw_if_set_learning_mode(ethsw->mc_io, 0, ethsw->dpsw_handle,
1615 port_priv->idx, learn_mode);
1616 if (err)
1617 netdev_err(port_priv->netdev, "dpsw_if_set_learning_mode err %d\n", err);
1618
1619 if (!enable)
1620 dpaa2_switch_port_fast_age(port_priv);
1621
1622 return err;
1623}
1624
1625static int dpaa2_switch_port_attr_stp_state_set(struct net_device *netdev,
1626 u8 state)
1627{
1628 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1629 int err;
1630
1631 err = dpaa2_switch_port_set_stp_state(port_priv, state);
1632 if (err)
1633 return err;
1634
1635 switch (state) {
1636 case BR_STATE_DISABLED:
1637 case BR_STATE_BLOCKING:
1638 case BR_STATE_LISTENING:
1639 err = dpaa2_switch_port_set_learning(port_priv, false);
1640 break;
1641 case BR_STATE_LEARNING:
1642 case BR_STATE_FORWARDING:
1643 err = dpaa2_switch_port_set_learning(port_priv,
1644 port_priv->learn_ena);
1645 break;
1646 }
1647
1648 return err;
1649}
1650
1651static int dpaa2_switch_port_flood(struct ethsw_port_priv *port_priv,
1652 struct switchdev_brport_flags flags)
1653{
1654 struct ethsw_core *ethsw = port_priv->ethsw_data;
1655
1656 if (flags.mask & BR_BCAST_FLOOD)
1657 port_priv->bcast_flood = !!(flags.val & BR_BCAST_FLOOD);
1658
1659 if (flags.mask & BR_FLOOD)
1660 port_priv->ucast_flood = !!(flags.val & BR_FLOOD);
1661
1662 return dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id);
1663}
1664
1665static int dpaa2_switch_port_pre_bridge_flags(struct net_device *netdev,
1666 struct switchdev_brport_flags flags,
1667 struct netlink_ext_ack *extack)
1668{
1669 if (flags.mask & ~(BR_LEARNING | BR_BCAST_FLOOD | BR_FLOOD |
1670 BR_MCAST_FLOOD))
1671 return -EINVAL;
1672
1673 if (flags.mask & (BR_FLOOD | BR_MCAST_FLOOD)) {
1674 bool multicast = !!(flags.val & BR_MCAST_FLOOD);
1675 bool unicast = !!(flags.val & BR_FLOOD);
1676
1677 if (unicast != multicast) {
1678 NL_SET_ERR_MSG_MOD(extack,
1679 "Cannot configure multicast flooding independently of unicast");
1680 return -EINVAL;
1681 }
1682 }
1683
1684 return 0;
1685}
1686
1687static int dpaa2_switch_port_bridge_flags(struct net_device *netdev,
1688 struct switchdev_brport_flags flags,
1689 struct netlink_ext_ack *extack)
1690{
1691 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1692 int err;
1693
1694 if (flags.mask & BR_LEARNING) {
1695 bool learn_ena = !!(flags.val & BR_LEARNING);
1696
1697 err = dpaa2_switch_port_set_learning(port_priv, learn_ena);
1698 if (err)
1699 return err;
1700 port_priv->learn_ena = learn_ena;
1701 }
1702
1703 if (flags.mask & (BR_BCAST_FLOOD | BR_FLOOD | BR_MCAST_FLOOD)) {
1704 err = dpaa2_switch_port_flood(port_priv, flags);
1705 if (err)
1706 return err;
1707 }
1708
1709 return 0;
1710}
1711
1712static int dpaa2_switch_port_attr_set(struct net_device *netdev, const void *ctx,
1713 const struct switchdev_attr *attr,
1714 struct netlink_ext_ack *extack)
1715{
1716 int err = 0;
1717
1718 switch (attr->id) {
1719 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
1720 err = dpaa2_switch_port_attr_stp_state_set(netdev,
1721 attr->u.stp_state);
1722 break;
1723 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
1724 if (!attr->u.vlan_filtering) {
1725 NL_SET_ERR_MSG_MOD(extack,
1726 "The DPAA2 switch does not support VLAN-unaware operation");
1727 return -EOPNOTSUPP;
1728 }
1729 break;
1730 case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
1731 err = dpaa2_switch_port_pre_bridge_flags(netdev, attr->u.brport_flags, extack);
1732 break;
1733 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
1734 err = dpaa2_switch_port_bridge_flags(netdev, attr->u.brport_flags, extack);
1735 break;
1736 default:
1737 err = -EOPNOTSUPP;
1738 break;
1739 }
1740
1741 return err;
1742}
1743
1744int dpaa2_switch_port_vlans_add(struct net_device *netdev,
1745 const struct switchdev_obj_port_vlan *vlan)
1746{
1747 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1748 struct ethsw_core *ethsw = port_priv->ethsw_data;
1749 struct dpsw_attr *attr = ðsw->sw_attr;
1750 int err = 0;
1751
1752
1753
1754
1755 if (port_priv->vlans[vlan->vid] & ETHSW_VLAN_MEMBER)
1756 return -EEXIST;
1757
1758
1759 err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
1760 ðsw->sw_attr);
1761 if (err) {
1762 netdev_err(netdev, "dpsw_get_attributes err %d\n", err);
1763 return err;
1764 }
1765 if (attr->max_vlans - attr->num_vlans < 1)
1766 return -ENOSPC;
1767
1768
1769 err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
1770 ðsw->sw_attr);
1771 if (err) {
1772 netdev_err(netdev, "dpsw_get_attributes err %d\n", err);
1773 return err;
1774 }
1775 if (attr->max_vlans - attr->num_vlans < 1)
1776 return -ENOSPC;
1777
1778 if (!port_priv->ethsw_data->vlans[vlan->vid]) {
1779
1780 err = dpaa2_switch_add_vlan(port_priv, vlan->vid);
1781 if (err)
1782 return err;
1783
1784 port_priv->ethsw_data->vlans[vlan->vid] |= ETHSW_VLAN_GLOBAL;
1785 }
1786
1787 return dpaa2_switch_port_add_vlan(port_priv, vlan->vid, vlan->flags);
1788}
1789
1790static int dpaa2_switch_port_lookup_address(struct net_device *netdev, int is_uc,
1791 const unsigned char *addr)
1792{
1793 struct netdev_hw_addr_list *list = (is_uc) ? &netdev->uc : &netdev->mc;
1794 struct netdev_hw_addr *ha;
1795
1796 netif_addr_lock_bh(netdev);
1797 list_for_each_entry(ha, &list->list, list) {
1798 if (ether_addr_equal(ha->addr, addr)) {
1799 netif_addr_unlock_bh(netdev);
1800 return 1;
1801 }
1802 }
1803 netif_addr_unlock_bh(netdev);
1804 return 0;
1805}
1806
1807static int dpaa2_switch_port_mdb_add(struct net_device *netdev,
1808 const struct switchdev_obj_port_mdb *mdb)
1809{
1810 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1811 int err;
1812
1813
1814 if (dpaa2_switch_port_lookup_address(netdev, 0, mdb->addr))
1815 return -EEXIST;
1816
1817 err = dpaa2_switch_port_fdb_add_mc(port_priv, mdb->addr);
1818 if (err)
1819 return err;
1820
1821 err = dev_mc_add(netdev, mdb->addr);
1822 if (err) {
1823 netdev_err(netdev, "dev_mc_add err %d\n", err);
1824 dpaa2_switch_port_fdb_del_mc(port_priv, mdb->addr);
1825 }
1826
1827 return err;
1828}
1829
1830static int dpaa2_switch_port_obj_add(struct net_device *netdev,
1831 const struct switchdev_obj *obj)
1832{
1833 int err;
1834
1835 switch (obj->id) {
1836 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1837 err = dpaa2_switch_port_vlans_add(netdev,
1838 SWITCHDEV_OBJ_PORT_VLAN(obj));
1839 break;
1840 case SWITCHDEV_OBJ_ID_PORT_MDB:
1841 err = dpaa2_switch_port_mdb_add(netdev,
1842 SWITCHDEV_OBJ_PORT_MDB(obj));
1843 break;
1844 default:
1845 err = -EOPNOTSUPP;
1846 break;
1847 }
1848
1849 return err;
1850}
1851
1852static int dpaa2_switch_port_del_vlan(struct ethsw_port_priv *port_priv, u16 vid)
1853{
1854 struct ethsw_core *ethsw = port_priv->ethsw_data;
1855 struct net_device *netdev = port_priv->netdev;
1856 struct dpsw_vlan_if_cfg vcfg;
1857 int i, err;
1858
1859 if (!port_priv->vlans[vid])
1860 return -ENOENT;
1861
1862 if (port_priv->vlans[vid] & ETHSW_VLAN_PVID) {
1863
1864
1865
1866
1867 err = dpaa2_switch_port_set_pvid(port_priv, 4095);
1868 if (err)
1869 return err;
1870 }
1871
1872 vcfg.num_ifs = 1;
1873 vcfg.if_id[0] = port_priv->idx;
1874 if (port_priv->vlans[vid] & ETHSW_VLAN_UNTAGGED) {
1875 err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0,
1876 ethsw->dpsw_handle,
1877 vid, &vcfg);
1878 if (err) {
1879 netdev_err(netdev,
1880 "dpsw_vlan_remove_if_untagged err %d\n",
1881 err);
1882 }
1883 port_priv->vlans[vid] &= ~ETHSW_VLAN_UNTAGGED;
1884 }
1885
1886 if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) {
1887 err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
1888 vid, &vcfg);
1889 if (err) {
1890 netdev_err(netdev,
1891 "dpsw_vlan_remove_if err %d\n", err);
1892 return err;
1893 }
1894 port_priv->vlans[vid] &= ~ETHSW_VLAN_MEMBER;
1895
1896
1897
1898
1899 for (i = 0; i < ethsw->sw_attr.num_ifs; i++)
1900 if (ethsw->ports[i]->vlans[vid] & ETHSW_VLAN_MEMBER)
1901 return 0;
1902
1903 ethsw->vlans[vid] &= ~ETHSW_VLAN_GLOBAL;
1904
1905 err = dpaa2_switch_dellink(ethsw, vid);
1906 if (err)
1907 return err;
1908 }
1909
1910 return 0;
1911}
1912
1913int dpaa2_switch_port_vlans_del(struct net_device *netdev,
1914 const struct switchdev_obj_port_vlan *vlan)
1915{
1916 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1917
1918 if (netif_is_bridge_master(vlan->obj.orig_dev))
1919 return -EOPNOTSUPP;
1920
1921 return dpaa2_switch_port_del_vlan(port_priv, vlan->vid);
1922}
1923
1924static int dpaa2_switch_port_mdb_del(struct net_device *netdev,
1925 const struct switchdev_obj_port_mdb *mdb)
1926{
1927 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1928 int err;
1929
1930 if (!dpaa2_switch_port_lookup_address(netdev, 0, mdb->addr))
1931 return -ENOENT;
1932
1933 err = dpaa2_switch_port_fdb_del_mc(port_priv, mdb->addr);
1934 if (err)
1935 return err;
1936
1937 err = dev_mc_del(netdev, mdb->addr);
1938 if (err) {
1939 netdev_err(netdev, "dev_mc_del err %d\n", err);
1940 return err;
1941 }
1942
1943 return err;
1944}
1945
1946static int dpaa2_switch_port_obj_del(struct net_device *netdev,
1947 const struct switchdev_obj *obj)
1948{
1949 int err;
1950
1951 switch (obj->id) {
1952 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1953 err = dpaa2_switch_port_vlans_del(netdev, SWITCHDEV_OBJ_PORT_VLAN(obj));
1954 break;
1955 case SWITCHDEV_OBJ_ID_PORT_MDB:
1956 err = dpaa2_switch_port_mdb_del(netdev, SWITCHDEV_OBJ_PORT_MDB(obj));
1957 break;
1958 default:
1959 err = -EOPNOTSUPP;
1960 break;
1961 }
1962 return err;
1963}
1964
1965static int dpaa2_switch_port_attr_set_event(struct net_device *netdev,
1966 struct switchdev_notifier_port_attr_info *ptr)
1967{
1968 int err;
1969
1970 err = switchdev_handle_port_attr_set(netdev, ptr,
1971 dpaa2_switch_port_dev_check,
1972 dpaa2_switch_port_attr_set);
1973 return notifier_from_errno(err);
1974}
1975
1976static struct notifier_block dpaa2_switch_port_switchdev_nb;
1977static struct notifier_block dpaa2_switch_port_switchdev_blocking_nb;
1978
1979static int dpaa2_switch_port_bridge_join(struct net_device *netdev,
1980 struct net_device *upper_dev,
1981 struct netlink_ext_ack *extack)
1982{
1983 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
1984 struct ethsw_core *ethsw = port_priv->ethsw_data;
1985 struct ethsw_port_priv *other_port_priv;
1986 struct net_device *other_dev;
1987 struct list_head *iter;
1988 bool learn_ena;
1989 int err;
1990
1991 netdev_for_each_lower_dev(upper_dev, other_dev, iter) {
1992 if (!dpaa2_switch_port_dev_check(other_dev))
1993 continue;
1994
1995 other_port_priv = netdev_priv(other_dev);
1996 if (other_port_priv->ethsw_data != port_priv->ethsw_data) {
1997 NL_SET_ERR_MSG_MOD(extack,
1998 "Interface from a different DPSW is in the bridge already");
1999 return -EINVAL;
2000 }
2001 }
2002
2003
2004 err = dpaa2_switch_port_del_vlan(port_priv, 1);
2005 if (err)
2006 return err;
2007
2008 dpaa2_switch_port_set_fdb(port_priv, upper_dev);
2009
2010
2011 learn_ena = br_port_flag_is_set(netdev, BR_LEARNING);
2012 err = dpaa2_switch_port_set_learning(port_priv, learn_ena);
2013 port_priv->learn_ena = learn_ena;
2014
2015
2016 err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id);
2017 if (err)
2018 goto err_egress_flood;
2019
2020 err = switchdev_bridge_port_offload(netdev, netdev, NULL,
2021 &dpaa2_switch_port_switchdev_nb,
2022 &dpaa2_switch_port_switchdev_blocking_nb,
2023 false, extack);
2024 if (err)
2025 goto err_switchdev_offload;
2026
2027 return 0;
2028
2029err_switchdev_offload:
2030err_egress_flood:
2031 dpaa2_switch_port_set_fdb(port_priv, NULL);
2032 return err;
2033}
2034
2035static int dpaa2_switch_port_clear_rxvlan(struct net_device *vdev, int vid, void *arg)
2036{
2037 __be16 vlan_proto = htons(ETH_P_8021Q);
2038
2039 if (vdev)
2040 vlan_proto = vlan_dev_vlan_proto(vdev);
2041
2042 return dpaa2_switch_port_vlan_kill(arg, vlan_proto, vid);
2043}
2044
2045static int dpaa2_switch_port_restore_rxvlan(struct net_device *vdev, int vid, void *arg)
2046{
2047 __be16 vlan_proto = htons(ETH_P_8021Q);
2048
2049 if (vdev)
2050 vlan_proto = vlan_dev_vlan_proto(vdev);
2051
2052 return dpaa2_switch_port_vlan_add(arg, vlan_proto, vid);
2053}
2054
2055static void dpaa2_switch_port_pre_bridge_leave(struct net_device *netdev)
2056{
2057 switchdev_bridge_port_unoffload(netdev, NULL,
2058 &dpaa2_switch_port_switchdev_nb,
2059 &dpaa2_switch_port_switchdev_blocking_nb);
2060}
2061
2062static int dpaa2_switch_port_bridge_leave(struct net_device *netdev)
2063{
2064 struct ethsw_port_priv *port_priv = netdev_priv(netdev);
2065 struct dpaa2_switch_fdb *old_fdb = port_priv->fdb;
2066 struct ethsw_core *ethsw = port_priv->ethsw_data;
2067 int err;
2068
2069
2070 dpaa2_switch_port_fast_age(port_priv);
2071
2072
2073
2074
2075
2076 err = vlan_for_each(netdev, dpaa2_switch_port_clear_rxvlan, netdev);
2077 if (err)
2078 netdev_err(netdev, "Unable to clear RX VLANs from old FDB table, err (%d)\n", err);
2079
2080 dpaa2_switch_port_set_fdb(port_priv, NULL);
2081
2082
2083 err = vlan_for_each(netdev, dpaa2_switch_port_restore_rxvlan, netdev);
2084 if (err)
2085 netdev_err(netdev, "Unable to restore RX VLANs to the new FDB, err (%d)\n", err);
2086
2087
2088
2089
2090
2091 port_priv->bcast_flood = true;
2092 port_priv->ucast_flood = true;
2093
2094
2095
2096
2097
2098 err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id);
2099 if (err)
2100 return err;
2101
2102
2103 err = dpaa2_switch_fdb_set_egress_flood(ethsw, old_fdb->fdb_id);
2104 if (err)
2105 return err;
2106
2107
2108 err = dpaa2_switch_port_set_learning(port_priv, false);
2109 if (err)
2110 return err;
2111 port_priv->learn_ena = false;
2112
2113
2114
2115
2116 return dpaa2_switch_port_add_vlan(port_priv, DEFAULT_VLAN_ID,
2117 BRIDGE_VLAN_INFO_UNTAGGED | BRIDGE_VLAN_INFO_PVID);
2118}
2119
2120static int dpaa2_switch_prevent_bridging_with_8021q_upper(struct net_device *netdev)
2121{
2122 struct net_device *upper_dev;
2123 struct list_head *iter;
2124
2125
2126
2127
2128 netdev_for_each_upper_dev_rcu(netdev, upper_dev, iter)
2129 if (is_vlan_dev(upper_dev))
2130 return -EOPNOTSUPP;
2131
2132 return 0;
2133}
2134
2135static int
2136dpaa2_switch_prechangeupper_sanity_checks(struct net_device *netdev,
2137 struct net_device *upper_dev,
2138 struct netlink_ext_ack *extack)
2139{
2140 int err;
2141
2142 if (!br_vlan_enabled(upper_dev)) {
2143 NL_SET_ERR_MSG_MOD(extack, "Cannot join a VLAN-unaware bridge");
2144 return -EOPNOTSUPP;
2145 }
2146
2147 err = dpaa2_switch_prevent_bridging_with_8021q_upper(netdev);
2148 if (err) {
2149 NL_SET_ERR_MSG_MOD(extack,
2150 "Cannot join a bridge while VLAN uppers are present");
2151 return 0;
2152 }
2153
2154 return 0;
2155}
2156
2157static int dpaa2_switch_port_netdevice_event(struct notifier_block *nb,
2158 unsigned long event, void *ptr)
2159{
2160 struct net_device *netdev = netdev_notifier_info_to_dev(ptr);
2161 struct netdev_notifier_changeupper_info *info = ptr;
2162 struct netlink_ext_ack *extack;
2163 struct net_device *upper_dev;
2164 int err = 0;
2165
2166 if (!dpaa2_switch_port_dev_check(netdev))
2167 return NOTIFY_DONE;
2168
2169 extack = netdev_notifier_info_to_extack(&info->info);
2170
2171 switch (event) {
2172 case NETDEV_PRECHANGEUPPER:
2173 upper_dev = info->upper_dev;
2174 if (!netif_is_bridge_master(upper_dev))
2175 break;
2176
2177 err = dpaa2_switch_prechangeupper_sanity_checks(netdev,
2178 upper_dev,
2179 extack);
2180 if (err)
2181 goto out;
2182
2183 if (!info->linking)
2184 dpaa2_switch_port_pre_bridge_leave(netdev);
2185
2186 break;
2187 case NETDEV_CHANGEUPPER:
2188 upper_dev = info->upper_dev;
2189 if (netif_is_bridge_master(upper_dev)) {
2190 if (info->linking)
2191 err = dpaa2_switch_port_bridge_join(netdev,
2192 upper_dev,
2193 extack);
2194 else
2195 err = dpaa2_switch_port_bridge_leave(netdev);
2196 }
2197 break;
2198 }
2199
2200out:
2201 return notifier_from_errno(err);
2202}
2203
2204struct ethsw_switchdev_event_work {
2205 struct work_struct work;
2206 struct switchdev_notifier_fdb_info fdb_info;
2207 struct net_device *dev;
2208 unsigned long event;
2209};
2210
2211static void dpaa2_switch_event_work(struct work_struct *work)
2212{
2213 struct ethsw_switchdev_event_work *switchdev_work =
2214 container_of(work, struct ethsw_switchdev_event_work, work);
2215 struct net_device *dev = switchdev_work->dev;
2216 struct switchdev_notifier_fdb_info *fdb_info;
2217 int err;
2218
2219 rtnl_lock();
2220 fdb_info = &switchdev_work->fdb_info;
2221
2222 switch (switchdev_work->event) {
2223 case SWITCHDEV_FDB_ADD_TO_DEVICE:
2224 if (!fdb_info->added_by_user || fdb_info->is_local)
2225 break;
2226 if (is_unicast_ether_addr(fdb_info->addr))
2227 err = dpaa2_switch_port_fdb_add_uc(netdev_priv(dev),
2228 fdb_info->addr);
2229 else
2230 err = dpaa2_switch_port_fdb_add_mc(netdev_priv(dev),
2231 fdb_info->addr);
2232 if (err)
2233 break;
2234 fdb_info->offloaded = true;
2235 call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev,
2236 &fdb_info->info, NULL);
2237 break;
2238 case SWITCHDEV_FDB_DEL_TO_DEVICE:
2239 if (!fdb_info->added_by_user || fdb_info->is_local)
2240 break;
2241 if (is_unicast_ether_addr(fdb_info->addr))
2242 dpaa2_switch_port_fdb_del_uc(netdev_priv(dev), fdb_info->addr);
2243 else
2244 dpaa2_switch_port_fdb_del_mc(netdev_priv(dev), fdb_info->addr);
2245 break;
2246 }
2247
2248 rtnl_unlock();
2249 kfree(switchdev_work->fdb_info.addr);
2250 kfree(switchdev_work);
2251 dev_put(dev);
2252}
2253
2254
2255static int dpaa2_switch_port_event(struct notifier_block *nb,
2256 unsigned long event, void *ptr)
2257{
2258 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
2259 struct ethsw_port_priv *port_priv = netdev_priv(dev);
2260 struct ethsw_switchdev_event_work *switchdev_work;
2261 struct switchdev_notifier_fdb_info *fdb_info = ptr;
2262 struct ethsw_core *ethsw = port_priv->ethsw_data;
2263
2264 if (event == SWITCHDEV_PORT_ATTR_SET)
2265 return dpaa2_switch_port_attr_set_event(dev, ptr);
2266
2267 if (!dpaa2_switch_port_dev_check(dev))
2268 return NOTIFY_DONE;
2269
2270 switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
2271 if (!switchdev_work)
2272 return NOTIFY_BAD;
2273
2274 INIT_WORK(&switchdev_work->work, dpaa2_switch_event_work);
2275 switchdev_work->dev = dev;
2276 switchdev_work->event = event;
2277
2278 switch (event) {
2279 case SWITCHDEV_FDB_ADD_TO_DEVICE:
2280 case SWITCHDEV_FDB_DEL_TO_DEVICE:
2281 memcpy(&switchdev_work->fdb_info, ptr,
2282 sizeof(switchdev_work->fdb_info));
2283 switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
2284 if (!switchdev_work->fdb_info.addr)
2285 goto err_addr_alloc;
2286
2287 ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
2288 fdb_info->addr);
2289
2290
2291 dev_hold(dev);
2292 break;
2293 default:
2294 kfree(switchdev_work);
2295 return NOTIFY_DONE;
2296 }
2297
2298 queue_work(ethsw->workqueue, &switchdev_work->work);
2299
2300 return NOTIFY_DONE;
2301
2302err_addr_alloc:
2303 kfree(switchdev_work);
2304 return NOTIFY_BAD;
2305}
2306
2307static int dpaa2_switch_port_obj_event(unsigned long event,
2308 struct net_device *netdev,
2309 struct switchdev_notifier_port_obj_info *port_obj_info)
2310{
2311 int err = -EOPNOTSUPP;
2312
2313 if (!dpaa2_switch_port_dev_check(netdev))
2314 return NOTIFY_DONE;
2315
2316 switch (event) {
2317 case SWITCHDEV_PORT_OBJ_ADD:
2318 err = dpaa2_switch_port_obj_add(netdev, port_obj_info->obj);
2319 break;
2320 case SWITCHDEV_PORT_OBJ_DEL:
2321 err = dpaa2_switch_port_obj_del(netdev, port_obj_info->obj);
2322 break;
2323 }
2324
2325 port_obj_info->handled = true;
2326 return notifier_from_errno(err);
2327}
2328
2329static int dpaa2_switch_port_blocking_event(struct notifier_block *nb,
2330 unsigned long event, void *ptr)
2331{
2332 struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
2333
2334 switch (event) {
2335 case SWITCHDEV_PORT_OBJ_ADD:
2336 case SWITCHDEV_PORT_OBJ_DEL:
2337 return dpaa2_switch_port_obj_event(event, dev, ptr);
2338 case SWITCHDEV_PORT_ATTR_SET:
2339 return dpaa2_switch_port_attr_set_event(dev, ptr);
2340 }
2341
2342 return NOTIFY_DONE;
2343}
2344
2345
2346static struct sk_buff *dpaa2_switch_build_linear_skb(struct ethsw_core *ethsw,
2347 const struct dpaa2_fd *fd)
2348{
2349 u16 fd_offset = dpaa2_fd_get_offset(fd);
2350 dma_addr_t addr = dpaa2_fd_get_addr(fd);
2351 u32 fd_length = dpaa2_fd_get_len(fd);
2352 struct device *dev = ethsw->dev;
2353 struct sk_buff *skb = NULL;
2354 void *fd_vaddr;
2355
2356 fd_vaddr = dpaa2_iova_to_virt(ethsw->iommu_domain, addr);
2357 dma_unmap_page(dev, addr, DPAA2_SWITCH_RX_BUF_SIZE,
2358 DMA_FROM_DEVICE);
2359
2360 skb = build_skb(fd_vaddr, DPAA2_SWITCH_RX_BUF_SIZE +
2361 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)));
2362 if (unlikely(!skb)) {
2363 dev_err(dev, "build_skb() failed\n");
2364 return NULL;
2365 }
2366
2367 skb_reserve(skb, fd_offset);
2368 skb_put(skb, fd_length);
2369
2370 ethsw->buf_count--;
2371
2372 return skb;
2373}
2374
2375static void dpaa2_switch_tx_conf(struct dpaa2_switch_fq *fq,
2376 const struct dpaa2_fd *fd)
2377{
2378 dpaa2_switch_free_fd(fq->ethsw, fd);
2379}
2380
2381static void dpaa2_switch_rx(struct dpaa2_switch_fq *fq,
2382 const struct dpaa2_fd *fd)
2383{
2384 struct ethsw_core *ethsw = fq->ethsw;
2385 struct ethsw_port_priv *port_priv;
2386 struct net_device *netdev;
2387 struct vlan_ethhdr *hdr;
2388 struct sk_buff *skb;
2389 u16 vlan_tci, vid;
2390 int if_id, err;
2391
2392
2393 if_id = upper_32_bits(dpaa2_fd_get_flc(fd)) & 0x0000FFFF;
2394
2395 if (if_id >= ethsw->sw_attr.num_ifs) {
2396 dev_err(ethsw->dev, "Frame received from unknown interface!\n");
2397 goto err_free_fd;
2398 }
2399 port_priv = ethsw->ports[if_id];
2400 netdev = port_priv->netdev;
2401
2402
2403 if (dpaa2_fd_get_format(fd) != dpaa2_fd_single) {
2404 if (net_ratelimit()) {
2405 netdev_err(netdev, "Received invalid frame format\n");
2406 goto err_free_fd;
2407 }
2408 }
2409
2410 skb = dpaa2_switch_build_linear_skb(ethsw, fd);
2411 if (unlikely(!skb))
2412 goto err_free_fd;
2413
2414 skb_reset_mac_header(skb);
2415
2416
2417
2418
2419
2420
2421
2422 hdr = vlan_eth_hdr(skb);
2423 vid = ntohs(hdr->h_vlan_TCI) & VLAN_VID_MASK;
2424 if (vid == port_priv->pvid) {
2425 err = __skb_vlan_pop(skb, &vlan_tci);
2426 if (err) {
2427 dev_info(ethsw->dev, "__skb_vlan_pop() returned %d", err);
2428 goto err_free_fd;
2429 }
2430 }
2431
2432 skb->dev = netdev;
2433 skb->protocol = eth_type_trans(skb, skb->dev);
2434
2435
2436 skb->offload_fwd_mark = !!(port_priv->fdb->bridge_dev);
2437
2438 netif_receive_skb(skb);
2439
2440 return;
2441
2442err_free_fd:
2443 dpaa2_switch_free_fd(ethsw, fd);
2444}
2445
2446static void dpaa2_switch_detect_features(struct ethsw_core *ethsw)
2447{
2448 ethsw->features = 0;
2449
2450 if (ethsw->major > 8 || (ethsw->major == 8 && ethsw->minor >= 6))
2451 ethsw->features |= ETHSW_FEATURE_MAC_ADDR;
2452}
2453
2454static int dpaa2_switch_setup_fqs(struct ethsw_core *ethsw)
2455{
2456 struct dpsw_ctrl_if_attr ctrl_if_attr;
2457 struct device *dev = ethsw->dev;
2458 int i = 0;
2459 int err;
2460
2461 err = dpsw_ctrl_if_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
2462 &ctrl_if_attr);
2463 if (err) {
2464 dev_err(dev, "dpsw_ctrl_if_get_attributes() = %d\n", err);
2465 return err;
2466 }
2467
2468 ethsw->fq[i].fqid = ctrl_if_attr.rx_fqid;
2469 ethsw->fq[i].ethsw = ethsw;
2470 ethsw->fq[i++].type = DPSW_QUEUE_RX;
2471
2472 ethsw->fq[i].fqid = ctrl_if_attr.tx_err_conf_fqid;
2473 ethsw->fq[i].ethsw = ethsw;
2474 ethsw->fq[i++].type = DPSW_QUEUE_TX_ERR_CONF;
2475
2476 return 0;
2477}
2478
2479
2480
2481
2482static void dpaa2_switch_free_bufs(struct ethsw_core *ethsw, u64 *buf_array, int count)
2483{
2484 struct device *dev = ethsw->dev;
2485 void *vaddr;
2486 int i;
2487
2488 for (i = 0; i < count; i++) {
2489 vaddr = dpaa2_iova_to_virt(ethsw->iommu_domain, buf_array[i]);
2490 dma_unmap_page(dev, buf_array[i], DPAA2_SWITCH_RX_BUF_SIZE,
2491 DMA_FROM_DEVICE);
2492 free_pages((unsigned long)vaddr, 0);
2493 }
2494}
2495
2496
2497
2498
2499static int dpaa2_switch_add_bufs(struct ethsw_core *ethsw, u16 bpid)
2500{
2501 struct device *dev = ethsw->dev;
2502 u64 buf_array[BUFS_PER_CMD];
2503 struct page *page;
2504 int retries = 0;
2505 dma_addr_t addr;
2506 int err;
2507 int i;
2508
2509 for (i = 0; i < BUFS_PER_CMD; i++) {
2510
2511
2512
2513
2514 page = dev_alloc_pages(0);
2515 if (!page) {
2516 dev_err(dev, "buffer allocation failed\n");
2517 goto err_alloc;
2518 }
2519
2520 addr = dma_map_page(dev, page, 0, DPAA2_SWITCH_RX_BUF_SIZE,
2521 DMA_FROM_DEVICE);
2522 if (dma_mapping_error(dev, addr)) {
2523 dev_err(dev, "dma_map_single() failed\n");
2524 goto err_map;
2525 }
2526 buf_array[i] = addr;
2527 }
2528
2529release_bufs:
2530
2531
2532
2533 while ((err = dpaa2_io_service_release(NULL, bpid,
2534 buf_array, i)) == -EBUSY) {
2535 if (retries++ >= DPAA2_SWITCH_SWP_BUSY_RETRIES)
2536 break;
2537
2538 cpu_relax();
2539 }
2540
2541
2542 if (err) {
2543 dpaa2_switch_free_bufs(ethsw, buf_array, i);
2544 return 0;
2545 }
2546
2547 return i;
2548
2549err_map:
2550 __free_pages(page, 0);
2551err_alloc:
2552
2553
2554
2555 if (i)
2556 goto release_bufs;
2557
2558 return 0;
2559}
2560
2561static int dpaa2_switch_refill_bp(struct ethsw_core *ethsw)
2562{
2563 int *count = ðsw->buf_count;
2564 int new_count;
2565 int err = 0;
2566
2567 if (unlikely(*count < DPAA2_ETHSW_REFILL_THRESH)) {
2568 do {
2569 new_count = dpaa2_switch_add_bufs(ethsw, ethsw->bpid);
2570 if (unlikely(!new_count)) {
2571
2572
2573
2574 break;
2575 }
2576 *count += new_count;
2577 } while (*count < DPAA2_ETHSW_NUM_BUFS);
2578
2579 if (unlikely(*count < DPAA2_ETHSW_NUM_BUFS))
2580 err = -ENOMEM;
2581 }
2582
2583 return err;
2584}
2585
2586static int dpaa2_switch_seed_bp(struct ethsw_core *ethsw)
2587{
2588 int *count, i;
2589
2590 for (i = 0; i < DPAA2_ETHSW_NUM_BUFS; i += BUFS_PER_CMD) {
2591 count = ðsw->buf_count;
2592 *count += dpaa2_switch_add_bufs(ethsw, ethsw->bpid);
2593
2594 if (unlikely(*count < BUFS_PER_CMD))
2595 return -ENOMEM;
2596 }
2597
2598 return 0;
2599}
2600
2601static void dpaa2_switch_drain_bp(struct ethsw_core *ethsw)
2602{
2603 u64 buf_array[BUFS_PER_CMD];
2604 int ret;
2605
2606 do {
2607 ret = dpaa2_io_service_acquire(NULL, ethsw->bpid,
2608 buf_array, BUFS_PER_CMD);
2609 if (ret < 0) {
2610 dev_err(ethsw->dev,
2611 "dpaa2_io_service_acquire() = %d\n", ret);
2612 return;
2613 }
2614 dpaa2_switch_free_bufs(ethsw, buf_array, ret);
2615
2616 } while (ret);
2617}
2618
2619static int dpaa2_switch_setup_dpbp(struct ethsw_core *ethsw)
2620{
2621 struct dpsw_ctrl_if_pools_cfg dpsw_ctrl_if_pools_cfg = { 0 };
2622 struct device *dev = ethsw->dev;
2623 struct fsl_mc_device *dpbp_dev;
2624 struct dpbp_attr dpbp_attrs;
2625 int err;
2626
2627 err = fsl_mc_object_allocate(to_fsl_mc_device(dev), FSL_MC_POOL_DPBP,
2628 &dpbp_dev);
2629 if (err) {
2630 if (err == -ENXIO)
2631 err = -EPROBE_DEFER;
2632 else
2633 dev_err(dev, "DPBP device allocation failed\n");
2634 return err;
2635 }
2636 ethsw->dpbp_dev = dpbp_dev;
2637
2638 err = dpbp_open(ethsw->mc_io, 0, dpbp_dev->obj_desc.id,
2639 &dpbp_dev->mc_handle);
2640 if (err) {
2641 dev_err(dev, "dpbp_open() failed\n");
2642 goto err_open;
2643 }
2644
2645 err = dpbp_reset(ethsw->mc_io, 0, dpbp_dev->mc_handle);
2646 if (err) {
2647 dev_err(dev, "dpbp_reset() failed\n");
2648 goto err_reset;
2649 }
2650
2651 err = dpbp_enable(ethsw->mc_io, 0, dpbp_dev->mc_handle);
2652 if (err) {
2653 dev_err(dev, "dpbp_enable() failed\n");
2654 goto err_enable;
2655 }
2656
2657 err = dpbp_get_attributes(ethsw->mc_io, 0, dpbp_dev->mc_handle,
2658 &dpbp_attrs);
2659 if (err) {
2660 dev_err(dev, "dpbp_get_attributes() failed\n");
2661 goto err_get_attr;
2662 }
2663
2664 dpsw_ctrl_if_pools_cfg.num_dpbp = 1;
2665 dpsw_ctrl_if_pools_cfg.pools[0].dpbp_id = dpbp_attrs.id;
2666 dpsw_ctrl_if_pools_cfg.pools[0].buffer_size = DPAA2_SWITCH_RX_BUF_SIZE;
2667 dpsw_ctrl_if_pools_cfg.pools[0].backup_pool = 0;
2668
2669 err = dpsw_ctrl_if_set_pools(ethsw->mc_io, 0, ethsw->dpsw_handle,
2670 &dpsw_ctrl_if_pools_cfg);
2671 if (err) {
2672 dev_err(dev, "dpsw_ctrl_if_set_pools() failed\n");
2673 goto err_get_attr;
2674 }
2675 ethsw->bpid = dpbp_attrs.id;
2676
2677 return 0;
2678
2679err_get_attr:
2680 dpbp_disable(ethsw->mc_io, 0, dpbp_dev->mc_handle);
2681err_enable:
2682err_reset:
2683 dpbp_close(ethsw->mc_io, 0, dpbp_dev->mc_handle);
2684err_open:
2685 fsl_mc_object_free(dpbp_dev);
2686 return err;
2687}
2688
2689static void dpaa2_switch_free_dpbp(struct ethsw_core *ethsw)
2690{
2691 dpbp_disable(ethsw->mc_io, 0, ethsw->dpbp_dev->mc_handle);
2692 dpbp_close(ethsw->mc_io, 0, ethsw->dpbp_dev->mc_handle);
2693 fsl_mc_object_free(ethsw->dpbp_dev);
2694}
2695
2696static int dpaa2_switch_alloc_rings(struct ethsw_core *ethsw)
2697{
2698 int i;
2699
2700 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) {
2701 ethsw->fq[i].store =
2702 dpaa2_io_store_create(DPAA2_SWITCH_STORE_SIZE,
2703 ethsw->dev);
2704 if (!ethsw->fq[i].store) {
2705 dev_err(ethsw->dev, "dpaa2_io_store_create failed\n");
2706 while (--i >= 0)
2707 dpaa2_io_store_destroy(ethsw->fq[i].store);
2708 return -ENOMEM;
2709 }
2710 }
2711
2712 return 0;
2713}
2714
2715static void dpaa2_switch_destroy_rings(struct ethsw_core *ethsw)
2716{
2717 int i;
2718
2719 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++)
2720 dpaa2_io_store_destroy(ethsw->fq[i].store);
2721}
2722
2723static int dpaa2_switch_pull_fq(struct dpaa2_switch_fq *fq)
2724{
2725 int err, retries = 0;
2726
2727
2728
2729
2730 do {
2731 err = dpaa2_io_service_pull_fq(NULL, fq->fqid, fq->store);
2732 cpu_relax();
2733 } while (err == -EBUSY && retries++ < DPAA2_SWITCH_SWP_BUSY_RETRIES);
2734
2735 if (unlikely(err))
2736 dev_err(fq->ethsw->dev, "dpaa2_io_service_pull err %d", err);
2737
2738 return err;
2739}
2740
2741
2742static int dpaa2_switch_store_consume(struct dpaa2_switch_fq *fq)
2743{
2744 struct ethsw_core *ethsw = fq->ethsw;
2745 int cleaned = 0, is_last;
2746 struct dpaa2_dq *dq;
2747 int retries = 0;
2748
2749 do {
2750
2751 dq = dpaa2_io_store_next(fq->store, &is_last);
2752 if (unlikely(!dq)) {
2753 if (retries++ >= DPAA2_SWITCH_SWP_BUSY_RETRIES) {
2754 dev_err_once(ethsw->dev,
2755 "No valid dequeue response\n");
2756 return -ETIMEDOUT;
2757 }
2758 continue;
2759 }
2760
2761 if (fq->type == DPSW_QUEUE_RX)
2762 dpaa2_switch_rx(fq, dpaa2_dq_fd(dq));
2763 else
2764 dpaa2_switch_tx_conf(fq, dpaa2_dq_fd(dq));
2765 cleaned++;
2766
2767 } while (!is_last);
2768
2769 return cleaned;
2770}
2771
2772
2773static int dpaa2_switch_poll(struct napi_struct *napi, int budget)
2774{
2775 int err, cleaned = 0, store_cleaned, work_done;
2776 struct dpaa2_switch_fq *fq;
2777 int retries = 0;
2778
2779 fq = container_of(napi, struct dpaa2_switch_fq, napi);
2780
2781 do {
2782 err = dpaa2_switch_pull_fq(fq);
2783 if (unlikely(err))
2784 break;
2785
2786
2787 dpaa2_switch_refill_bp(fq->ethsw);
2788
2789 store_cleaned = dpaa2_switch_store_consume(fq);
2790 cleaned += store_cleaned;
2791
2792 if (cleaned >= budget) {
2793 work_done = budget;
2794 goto out;
2795 }
2796
2797 } while (store_cleaned);
2798
2799
2800
2801
2802 napi_complete_done(napi, cleaned);
2803 do {
2804 err = dpaa2_io_service_rearm(NULL, &fq->nctx);
2805 cpu_relax();
2806 } while (err == -EBUSY && retries++ < DPAA2_SWITCH_SWP_BUSY_RETRIES);
2807
2808 work_done = max(cleaned, 1);
2809out:
2810
2811 return work_done;
2812}
2813
2814static void dpaa2_switch_fqdan_cb(struct dpaa2_io_notification_ctx *nctx)
2815{
2816 struct dpaa2_switch_fq *fq;
2817
2818 fq = container_of(nctx, struct dpaa2_switch_fq, nctx);
2819
2820 napi_schedule(&fq->napi);
2821}
2822
2823static int dpaa2_switch_setup_dpio(struct ethsw_core *ethsw)
2824{
2825 struct dpsw_ctrl_if_queue_cfg queue_cfg;
2826 struct dpaa2_io_notification_ctx *nctx;
2827 int err, i, j;
2828
2829 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) {
2830 nctx = ðsw->fq[i].nctx;
2831
2832
2833
2834
2835
2836 nctx->is_cdan = 0;
2837 nctx->id = ethsw->fq[i].fqid;
2838 nctx->desired_cpu = DPAA2_IO_ANY_CPU;
2839 nctx->cb = dpaa2_switch_fqdan_cb;
2840 err = dpaa2_io_service_register(NULL, nctx, ethsw->dev);
2841 if (err) {
2842 err = -EPROBE_DEFER;
2843 goto err_register;
2844 }
2845
2846 queue_cfg.options = DPSW_CTRL_IF_QUEUE_OPT_DEST |
2847 DPSW_CTRL_IF_QUEUE_OPT_USER_CTX;
2848 queue_cfg.dest_cfg.dest_type = DPSW_CTRL_IF_DEST_DPIO;
2849 queue_cfg.dest_cfg.dest_id = nctx->dpio_id;
2850 queue_cfg.dest_cfg.priority = 0;
2851 queue_cfg.user_ctx = nctx->qman64;
2852
2853 err = dpsw_ctrl_if_set_queue(ethsw->mc_io, 0,
2854 ethsw->dpsw_handle,
2855 ethsw->fq[i].type,
2856 &queue_cfg);
2857 if (err)
2858 goto err_set_queue;
2859 }
2860
2861 return 0;
2862
2863err_set_queue:
2864 dpaa2_io_service_deregister(NULL, nctx, ethsw->dev);
2865err_register:
2866 for (j = 0; j < i; j++)
2867 dpaa2_io_service_deregister(NULL, ðsw->fq[j].nctx,
2868 ethsw->dev);
2869
2870 return err;
2871}
2872
2873static void dpaa2_switch_free_dpio(struct ethsw_core *ethsw)
2874{
2875 int i;
2876
2877 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++)
2878 dpaa2_io_service_deregister(NULL, ðsw->fq[i].nctx,
2879 ethsw->dev);
2880}
2881
2882static int dpaa2_switch_ctrl_if_setup(struct ethsw_core *ethsw)
2883{
2884 int err;
2885
2886
2887 err = dpaa2_switch_setup_fqs(ethsw);
2888 if (err)
2889 return err;
2890
2891
2892 err = dpaa2_switch_setup_dpbp(ethsw);
2893 if (err)
2894 return err;
2895
2896 err = dpaa2_switch_alloc_rings(ethsw);
2897 if (err)
2898 goto err_free_dpbp;
2899
2900 err = dpaa2_switch_setup_dpio(ethsw);
2901 if (err)
2902 goto err_destroy_rings;
2903
2904 err = dpaa2_switch_seed_bp(ethsw);
2905 if (err)
2906 goto err_deregister_dpio;
2907
2908 err = dpsw_ctrl_if_enable(ethsw->mc_io, 0, ethsw->dpsw_handle);
2909 if (err) {
2910 dev_err(ethsw->dev, "dpsw_ctrl_if_enable err %d\n", err);
2911 goto err_drain_dpbp;
2912 }
2913
2914 return 0;
2915
2916err_drain_dpbp:
2917 dpaa2_switch_drain_bp(ethsw);
2918err_deregister_dpio:
2919 dpaa2_switch_free_dpio(ethsw);
2920err_destroy_rings:
2921 dpaa2_switch_destroy_rings(ethsw);
2922err_free_dpbp:
2923 dpaa2_switch_free_dpbp(ethsw);
2924
2925 return err;
2926}
2927
2928static void dpaa2_switch_remove_port(struct ethsw_core *ethsw,
2929 u16 port_idx)
2930{
2931 struct ethsw_port_priv *port_priv = ethsw->ports[port_idx];
2932
2933 rtnl_lock();
2934 dpaa2_switch_port_disconnect_mac(port_priv);
2935 rtnl_unlock();
2936 free_netdev(port_priv->netdev);
2937 ethsw->ports[port_idx] = NULL;
2938}
2939
2940static int dpaa2_switch_init(struct fsl_mc_device *sw_dev)
2941{
2942 struct device *dev = &sw_dev->dev;
2943 struct ethsw_core *ethsw = dev_get_drvdata(dev);
2944 struct dpsw_vlan_if_cfg vcfg = {0};
2945 struct dpsw_tci_cfg tci_cfg = {0};
2946 struct dpsw_stp_cfg stp_cfg;
2947 int err;
2948 u16 i;
2949
2950 ethsw->dev_id = sw_dev->obj_desc.id;
2951
2952 err = dpsw_open(ethsw->mc_io, 0, ethsw->dev_id, ðsw->dpsw_handle);
2953 if (err) {
2954 dev_err(dev, "dpsw_open err %d\n", err);
2955 return err;
2956 }
2957
2958 err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
2959 ðsw->sw_attr);
2960 if (err) {
2961 dev_err(dev, "dpsw_get_attributes err %d\n", err);
2962 goto err_close;
2963 }
2964
2965 err = dpsw_get_api_version(ethsw->mc_io, 0,
2966 ðsw->major,
2967 ðsw->minor);
2968 if (err) {
2969 dev_err(dev, "dpsw_get_api_version err %d\n", err);
2970 goto err_close;
2971 }
2972
2973
2974 if (ethsw->major < DPSW_MIN_VER_MAJOR ||
2975 (ethsw->major == DPSW_MIN_VER_MAJOR &&
2976 ethsw->minor < DPSW_MIN_VER_MINOR)) {
2977 dev_err(dev, "DPSW version %d:%d not supported. Use firmware 10.28.0 or greater.\n",
2978 ethsw->major, ethsw->minor);
2979 err = -EOPNOTSUPP;
2980 goto err_close;
2981 }
2982
2983 if (!dpaa2_switch_supports_cpu_traffic(ethsw)) {
2984 err = -EOPNOTSUPP;
2985 goto err_close;
2986 }
2987
2988 dpaa2_switch_detect_features(ethsw);
2989
2990 err = dpsw_reset(ethsw->mc_io, 0, ethsw->dpsw_handle);
2991 if (err) {
2992 dev_err(dev, "dpsw_reset err %d\n", err);
2993 goto err_close;
2994 }
2995
2996 stp_cfg.vlan_id = DEFAULT_VLAN_ID;
2997 stp_cfg.state = DPSW_STP_STATE_FORWARDING;
2998
2999 for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
3000 err = dpsw_if_disable(ethsw->mc_io, 0, ethsw->dpsw_handle, i);
3001 if (err) {
3002 dev_err(dev, "dpsw_if_disable err %d\n", err);
3003 goto err_close;
3004 }
3005
3006 err = dpsw_if_set_stp(ethsw->mc_io, 0, ethsw->dpsw_handle, i,
3007 &stp_cfg);
3008 if (err) {
3009 dev_err(dev, "dpsw_if_set_stp err %d for port %d\n",
3010 err, i);
3011 goto err_close;
3012 }
3013
3014
3015
3016
3017 vcfg.num_ifs = 1;
3018 vcfg.if_id[0] = i;
3019 err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0, ethsw->dpsw_handle,
3020 DEFAULT_VLAN_ID, &vcfg);
3021 if (err) {
3022 dev_err(dev, "dpsw_vlan_remove_if_untagged err %d\n",
3023 err);
3024 goto err_close;
3025 }
3026
3027 tci_cfg.vlan_id = 4095;
3028 err = dpsw_if_set_tci(ethsw->mc_io, 0, ethsw->dpsw_handle, i, &tci_cfg);
3029 if (err) {
3030 dev_err(dev, "dpsw_if_set_tci err %d\n", err);
3031 goto err_close;
3032 }
3033
3034 err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle,
3035 DEFAULT_VLAN_ID, &vcfg);
3036 if (err) {
3037 dev_err(dev, "dpsw_vlan_remove_if err %d\n", err);
3038 goto err_close;
3039 }
3040 }
3041
3042 err = dpsw_vlan_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, DEFAULT_VLAN_ID);
3043 if (err) {
3044 dev_err(dev, "dpsw_vlan_remove err %d\n", err);
3045 goto err_close;
3046 }
3047
3048 ethsw->workqueue = alloc_ordered_workqueue("%s_%d_ordered",
3049 WQ_MEM_RECLAIM, "ethsw",
3050 ethsw->sw_attr.id);
3051 if (!ethsw->workqueue) {
3052 err = -ENOMEM;
3053 goto err_close;
3054 }
3055
3056 err = dpsw_fdb_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, 0);
3057 if (err)
3058 goto err_destroy_ordered_workqueue;
3059
3060 err = dpaa2_switch_ctrl_if_setup(ethsw);
3061 if (err)
3062 goto err_destroy_ordered_workqueue;
3063
3064 return 0;
3065
3066err_destroy_ordered_workqueue:
3067 destroy_workqueue(ethsw->workqueue);
3068
3069err_close:
3070 dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle);
3071 return err;
3072}
3073
3074
3075
3076
3077static int dpaa2_switch_port_trap_mac_addr(struct ethsw_port_priv *port_priv,
3078 const char *mac)
3079{
3080 struct dpaa2_switch_acl_entry acl_entry = {0};
3081
3082
3083 ether_addr_copy(acl_entry.key.match.l2_dest_mac, mac);
3084 eth_broadcast_addr(acl_entry.key.mask.l2_dest_mac);
3085
3086
3087 acl_entry.cfg.precedence = 0;
3088 acl_entry.cfg.result.action = DPSW_ACL_ACTION_REDIRECT_TO_CTRL_IF;
3089
3090 return dpaa2_switch_acl_entry_add(port_priv->filter_block, &acl_entry);
3091}
3092
3093static int dpaa2_switch_port_init(struct ethsw_port_priv *port_priv, u16 port)
3094{
3095 const char stpa[ETH_ALEN] = {0x01, 0x80, 0xc2, 0x00, 0x00, 0x00};
3096 struct switchdev_obj_port_vlan vlan = {
3097 .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
3098 .vid = DEFAULT_VLAN_ID,
3099 .flags = BRIDGE_VLAN_INFO_UNTAGGED | BRIDGE_VLAN_INFO_PVID,
3100 };
3101 struct net_device *netdev = port_priv->netdev;
3102 struct ethsw_core *ethsw = port_priv->ethsw_data;
3103 struct dpaa2_switch_filter_block *filter_block;
3104 struct dpsw_fdb_cfg fdb_cfg = {0};
3105 struct dpsw_if_attr dpsw_if_attr;
3106 struct dpaa2_switch_fdb *fdb;
3107 struct dpsw_acl_cfg acl_cfg;
3108 u16 fdb_id, acl_tbl_id;
3109 int err;
3110
3111
3112 err = dpsw_if_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle,
3113 port_priv->idx, &dpsw_if_attr);
3114 if (err) {
3115 netdev_err(netdev, "dpsw_if_get_attributes err %d\n", err);
3116 return err;
3117 }
3118 port_priv->tx_qdid = dpsw_if_attr.qdid;
3119
3120
3121 fdb_cfg.num_fdb_entries = ethsw->sw_attr.max_fdb_entries / ethsw->sw_attr.num_ifs;
3122 err = dpsw_fdb_add(ethsw->mc_io, 0, ethsw->dpsw_handle,
3123 &fdb_id, &fdb_cfg);
3124 if (err) {
3125 netdev_err(netdev, "dpsw_fdb_add err %d\n", err);
3126 return err;
3127 }
3128
3129
3130 fdb = dpaa2_switch_fdb_get_unused(ethsw);
3131 fdb->fdb_id = fdb_id;
3132 fdb->in_use = true;
3133 fdb->bridge_dev = NULL;
3134 port_priv->fdb = fdb;
3135
3136
3137
3138
3139
3140 err = dpaa2_switch_port_vlans_add(netdev, &vlan);
3141 if (err)
3142 return err;
3143
3144
3145 err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id);
3146 if (err)
3147 return err;
3148
3149
3150 acl_cfg.max_entries = DPAA2_ETHSW_PORT_MAX_ACL_ENTRIES;
3151 err = dpsw_acl_add(ethsw->mc_io, 0, ethsw->dpsw_handle,
3152 &acl_tbl_id, &acl_cfg);
3153 if (err) {
3154 netdev_err(netdev, "dpsw_acl_add err %d\n", err);
3155 return err;
3156 }
3157
3158 filter_block = dpaa2_switch_filter_block_get_unused(ethsw);
3159 filter_block->ethsw = ethsw;
3160 filter_block->acl_id = acl_tbl_id;
3161 filter_block->in_use = true;
3162 filter_block->num_acl_rules = 0;
3163 INIT_LIST_HEAD(&filter_block->acl_entries);
3164 INIT_LIST_HEAD(&filter_block->mirror_entries);
3165
3166 err = dpaa2_switch_port_acl_tbl_bind(port_priv, filter_block);
3167 if (err)
3168 return err;
3169
3170 err = dpaa2_switch_port_trap_mac_addr(port_priv, stpa);
3171 if (err)
3172 return err;
3173
3174 return err;
3175}
3176
3177static void dpaa2_switch_ctrl_if_teardown(struct ethsw_core *ethsw)
3178{
3179 dpsw_ctrl_if_disable(ethsw->mc_io, 0, ethsw->dpsw_handle);
3180 dpaa2_switch_free_dpio(ethsw);
3181 dpaa2_switch_destroy_rings(ethsw);
3182 dpaa2_switch_drain_bp(ethsw);
3183 dpaa2_switch_free_dpbp(ethsw);
3184}
3185
3186static void dpaa2_switch_teardown(struct fsl_mc_device *sw_dev)
3187{
3188 struct device *dev = &sw_dev->dev;
3189 struct ethsw_core *ethsw = dev_get_drvdata(dev);
3190 int err;
3191
3192 dpaa2_switch_ctrl_if_teardown(ethsw);
3193
3194 destroy_workqueue(ethsw->workqueue);
3195
3196 err = dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle);
3197 if (err)
3198 dev_warn(dev, "dpsw_close err %d\n", err);
3199}
3200
3201static int dpaa2_switch_remove(struct fsl_mc_device *sw_dev)
3202{
3203 struct ethsw_port_priv *port_priv;
3204 struct ethsw_core *ethsw;
3205 struct device *dev;
3206 int i;
3207
3208 dev = &sw_dev->dev;
3209 ethsw = dev_get_drvdata(dev);
3210
3211 dpaa2_switch_teardown_irqs(sw_dev);
3212
3213 dpsw_disable(ethsw->mc_io, 0, ethsw->dpsw_handle);
3214
3215 for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
3216 port_priv = ethsw->ports[i];
3217 unregister_netdev(port_priv->netdev);
3218 dpaa2_switch_remove_port(ethsw, i);
3219 }
3220
3221 kfree(ethsw->fdbs);
3222 kfree(ethsw->filter_blocks);
3223 kfree(ethsw->ports);
3224
3225 dpaa2_switch_teardown(sw_dev);
3226
3227 fsl_mc_portal_free(ethsw->mc_io);
3228
3229 kfree(ethsw);
3230
3231 dev_set_drvdata(dev, NULL);
3232
3233 return 0;
3234}
3235
3236static int dpaa2_switch_probe_port(struct ethsw_core *ethsw,
3237 u16 port_idx)
3238{
3239 struct ethsw_port_priv *port_priv;
3240 struct device *dev = ethsw->dev;
3241 struct net_device *port_netdev;
3242 int err;
3243
3244 port_netdev = alloc_etherdev(sizeof(struct ethsw_port_priv));
3245 if (!port_netdev) {
3246 dev_err(dev, "alloc_etherdev error\n");
3247 return -ENOMEM;
3248 }
3249
3250 port_priv = netdev_priv(port_netdev);
3251 port_priv->netdev = port_netdev;
3252 port_priv->ethsw_data = ethsw;
3253
3254 port_priv->idx = port_idx;
3255 port_priv->stp_state = BR_STATE_FORWARDING;
3256
3257 SET_NETDEV_DEV(port_netdev, dev);
3258 port_netdev->netdev_ops = &dpaa2_switch_port_ops;
3259 port_netdev->ethtool_ops = &dpaa2_switch_port_ethtool_ops;
3260
3261 port_netdev->needed_headroom = DPAA2_SWITCH_NEEDED_HEADROOM;
3262
3263 port_priv->bcast_flood = true;
3264 port_priv->ucast_flood = true;
3265
3266
3267 port_netdev->min_mtu = ETH_MIN_MTU;
3268 port_netdev->max_mtu = ETHSW_MAX_FRAME_LENGTH;
3269
3270
3271
3272
3273 ethsw->ports[port_idx] = port_priv;
3274
3275
3276
3277
3278 port_netdev->features = NETIF_F_HW_VLAN_CTAG_FILTER |
3279 NETIF_F_HW_VLAN_STAG_FILTER |
3280 NETIF_F_HW_TC;
3281
3282 err = dpaa2_switch_port_init(port_priv, port_idx);
3283 if (err)
3284 goto err_port_probe;
3285
3286 err = dpaa2_switch_port_set_mac_addr(port_priv);
3287 if (err)
3288 goto err_port_probe;
3289
3290 err = dpaa2_switch_port_set_learning(port_priv, false);
3291 if (err)
3292 goto err_port_probe;
3293 port_priv->learn_ena = false;
3294
3295 err = dpaa2_switch_port_connect_mac(port_priv);
3296 if (err)
3297 goto err_port_probe;
3298
3299 return 0;
3300
3301err_port_probe:
3302 free_netdev(port_netdev);
3303 ethsw->ports[port_idx] = NULL;
3304
3305 return err;
3306}
3307
3308static int dpaa2_switch_probe(struct fsl_mc_device *sw_dev)
3309{
3310 struct device *dev = &sw_dev->dev;
3311 struct ethsw_core *ethsw;
3312 int i, err;
3313
3314
3315 ethsw = kzalloc(sizeof(*ethsw), GFP_KERNEL);
3316
3317 if (!ethsw)
3318 return -ENOMEM;
3319
3320 ethsw->dev = dev;
3321 ethsw->iommu_domain = iommu_get_domain_for_dev(dev);
3322 dev_set_drvdata(dev, ethsw);
3323
3324 err = fsl_mc_portal_allocate(sw_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL,
3325 ðsw->mc_io);
3326 if (err) {
3327 if (err == -ENXIO)
3328 err = -EPROBE_DEFER;
3329 else
3330 dev_err(dev, "fsl_mc_portal_allocate err %d\n", err);
3331 goto err_free_drvdata;
3332 }
3333
3334 err = dpaa2_switch_init(sw_dev);
3335 if (err)
3336 goto err_free_cmdport;
3337
3338 ethsw->ports = kcalloc(ethsw->sw_attr.num_ifs, sizeof(*ethsw->ports),
3339 GFP_KERNEL);
3340 if (!(ethsw->ports)) {
3341 err = -ENOMEM;
3342 goto err_teardown;
3343 }
3344
3345 ethsw->fdbs = kcalloc(ethsw->sw_attr.num_ifs, sizeof(*ethsw->fdbs),
3346 GFP_KERNEL);
3347 if (!ethsw->fdbs) {
3348 err = -ENOMEM;
3349 goto err_free_ports;
3350 }
3351
3352 ethsw->filter_blocks = kcalloc(ethsw->sw_attr.num_ifs,
3353 sizeof(*ethsw->filter_blocks),
3354 GFP_KERNEL);
3355 if (!ethsw->filter_blocks) {
3356 err = -ENOMEM;
3357 goto err_free_fdbs;
3358 }
3359
3360 for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
3361 err = dpaa2_switch_probe_port(ethsw, i);
3362 if (err)
3363 goto err_free_netdev;
3364 }
3365
3366
3367
3368
3369
3370 for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++)
3371 netif_napi_add(ethsw->ports[0]->netdev,
3372 ðsw->fq[i].napi, dpaa2_switch_poll,
3373 NAPI_POLL_WEIGHT);
3374
3375
3376 err = dpaa2_switch_setup_irqs(sw_dev);
3377 if (err)
3378 goto err_stop;
3379
3380
3381
3382
3383 ethsw->mirror_port = ethsw->sw_attr.num_ifs;
3384
3385
3386
3387
3388 for (i = 0; i < ethsw->sw_attr.num_ifs; i++) {
3389 err = register_netdev(ethsw->ports[i]->netdev);
3390 if (err < 0) {
3391 dev_err(dev, "register_netdev error %d\n", err);
3392 goto err_unregister_ports;
3393 }
3394 }
3395
3396 return 0;
3397
3398err_unregister_ports:
3399 for (i--; i >= 0; i--)
3400 unregister_netdev(ethsw->ports[i]->netdev);
3401 dpaa2_switch_teardown_irqs(sw_dev);
3402err_stop:
3403 dpsw_disable(ethsw->mc_io, 0, ethsw->dpsw_handle);
3404err_free_netdev:
3405 for (i--; i >= 0; i--)
3406 dpaa2_switch_remove_port(ethsw, i);
3407 kfree(ethsw->filter_blocks);
3408err_free_fdbs:
3409 kfree(ethsw->fdbs);
3410err_free_ports:
3411 kfree(ethsw->ports);
3412
3413err_teardown:
3414 dpaa2_switch_teardown(sw_dev);
3415
3416err_free_cmdport:
3417 fsl_mc_portal_free(ethsw->mc_io);
3418
3419err_free_drvdata:
3420 kfree(ethsw);
3421 dev_set_drvdata(dev, NULL);
3422
3423 return err;
3424}
3425
3426static const struct fsl_mc_device_id dpaa2_switch_match_id_table[] = {
3427 {
3428 .vendor = FSL_MC_VENDOR_FREESCALE,
3429 .obj_type = "dpsw",
3430 },
3431 { .vendor = 0x0 }
3432};
3433MODULE_DEVICE_TABLE(fslmc, dpaa2_switch_match_id_table);
3434
3435static struct fsl_mc_driver dpaa2_switch_drv = {
3436 .driver = {
3437 .name = KBUILD_MODNAME,
3438 .owner = THIS_MODULE,
3439 },
3440 .probe = dpaa2_switch_probe,
3441 .remove = dpaa2_switch_remove,
3442 .match_id_table = dpaa2_switch_match_id_table
3443};
3444
3445static struct notifier_block dpaa2_switch_port_nb __read_mostly = {
3446 .notifier_call = dpaa2_switch_port_netdevice_event,
3447};
3448
3449static struct notifier_block dpaa2_switch_port_switchdev_nb = {
3450 .notifier_call = dpaa2_switch_port_event,
3451};
3452
3453static struct notifier_block dpaa2_switch_port_switchdev_blocking_nb = {
3454 .notifier_call = dpaa2_switch_port_blocking_event,
3455};
3456
3457static int dpaa2_switch_register_notifiers(void)
3458{
3459 int err;
3460
3461 err = register_netdevice_notifier(&dpaa2_switch_port_nb);
3462 if (err) {
3463 pr_err("dpaa2-switch: failed to register net_device notifier (%d)\n", err);
3464 return err;
3465 }
3466
3467 err = register_switchdev_notifier(&dpaa2_switch_port_switchdev_nb);
3468 if (err) {
3469 pr_err("dpaa2-switch: failed to register switchdev notifier (%d)\n", err);
3470 goto err_switchdev_nb;
3471 }
3472
3473 err = register_switchdev_blocking_notifier(&dpaa2_switch_port_switchdev_blocking_nb);
3474 if (err) {
3475 pr_err("dpaa2-switch: failed to register switchdev blocking notifier (%d)\n", err);
3476 goto err_switchdev_blocking_nb;
3477 }
3478
3479 return 0;
3480
3481err_switchdev_blocking_nb:
3482 unregister_switchdev_notifier(&dpaa2_switch_port_switchdev_nb);
3483err_switchdev_nb:
3484 unregister_netdevice_notifier(&dpaa2_switch_port_nb);
3485
3486 return err;
3487}
3488
3489static void dpaa2_switch_unregister_notifiers(void)
3490{
3491 int err;
3492
3493 err = unregister_switchdev_blocking_notifier(&dpaa2_switch_port_switchdev_blocking_nb);
3494 if (err)
3495 pr_err("dpaa2-switch: failed to unregister switchdev blocking notifier (%d)\n",
3496 err);
3497
3498 err = unregister_switchdev_notifier(&dpaa2_switch_port_switchdev_nb);
3499 if (err)
3500 pr_err("dpaa2-switch: failed to unregister switchdev notifier (%d)\n", err);
3501
3502 err = unregister_netdevice_notifier(&dpaa2_switch_port_nb);
3503 if (err)
3504 pr_err("dpaa2-switch: failed to unregister net_device notifier (%d)\n", err);
3505}
3506
3507static int __init dpaa2_switch_driver_init(void)
3508{
3509 int err;
3510
3511 err = fsl_mc_driver_register(&dpaa2_switch_drv);
3512 if (err)
3513 return err;
3514
3515 err = dpaa2_switch_register_notifiers();
3516 if (err) {
3517 fsl_mc_driver_unregister(&dpaa2_switch_drv);
3518 return err;
3519 }
3520
3521 return 0;
3522}
3523
3524static void __exit dpaa2_switch_driver_exit(void)
3525{
3526 dpaa2_switch_unregister_notifiers();
3527 fsl_mc_driver_unregister(&dpaa2_switch_drv);
3528}
3529
3530module_init(dpaa2_switch_driver_init);
3531module_exit(dpaa2_switch_driver_exit);
3532
3533MODULE_LICENSE("GPL v2");
3534MODULE_DESCRIPTION("DPAA2 Ethernet Switch Driver");
3535