projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
net: dsa: bcm_sf2: Get VLAN_PORT_MASK from b53_device
[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / net / ethernet / mellanox / mlxsw / spectrum_switchdev.c
1 /*
2 * drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c
3 * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
5 * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
6 * Copyright (c) 2015 Elad Raz <eladr@mellanox.com>
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 #include <linux/kernel.h>
38 #include <linux/types.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/slab.h>
42 #include <linux/device.h>
43 #include <linux/skbuff.h>
44 #include <linux/if_vlan.h>
45 #include <linux/if_bridge.h>
46 #include <linux/workqueue.h>
47 #include <linux/jiffies.h>
48 #include <linux/rtnetlink.h>
49 #include <net/switchdev.h>
50
51 #include "spectrum.h"
52 #include "core.h"
53 #include "reg.h"
54
55 static u16 mlxsw_sp_port_vid_to_fid_get(struct mlxsw_sp_port *mlxsw_sp_port,
56 u16 vid)
57 {
58 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
59 u16 fid = vid;
60
61 fid = f ? f->fid : fid;
62
63 if (!fid)
64 fid = mlxsw_sp_port->pvid;
65
66 return fid;
67 }
68
69 static struct mlxsw_sp_port *
70 mlxsw_sp_port_orig_get(struct net_device *dev,
71 struct mlxsw_sp_port *mlxsw_sp_port)
72 {
73 struct mlxsw_sp_port *mlxsw_sp_vport;
74 u16 vid;
75
76 if (!is_vlan_dev(dev))
77 return mlxsw_sp_port;
78
79 vid = vlan_dev_vlan_id(dev);
80 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
81 WARN_ON(!mlxsw_sp_vport);
82
83 return mlxsw_sp_vport;
84 }
85
86 static int mlxsw_sp_port_attr_get(struct net_device *dev,
87 struct switchdev_attr *attr)
88 {
89 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
90 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
91
92 mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
93 if (!mlxsw_sp_port)
94 return -EINVAL;
95
96 switch (attr->id) {
97 case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
98 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
99 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
100 attr->u.ppid.id_len);
101 break;
102 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
103 attr->u.brport_flags =
104 (mlxsw_sp_port->learning ? BR_LEARNING : 0) |
105 (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) |
106 (mlxsw_sp_port->uc_flood ? BR_FLOOD : 0);
107 break;
108 default:
109 return -EOPNOTSUPP;
110 }
111
112 return 0;
113 }
114
115 static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
116 u8 state)
117 {
118 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
119 enum mlxsw_reg_spms_state spms_state;
120 char *spms_pl;
121 u16 vid;
122 int err;
123
124 switch (state) {
125 case BR_STATE_FORWARDING:
126 spms_state = MLXSW_REG_SPMS_STATE_FORWARDING;
127 break;
128 case BR_STATE_LEARNING:
129 spms_state = MLXSW_REG_SPMS_STATE_LEARNING;
130 break;
131 case BR_STATE_LISTENING: /* fall-through */
132 case BR_STATE_DISABLED: /* fall-through */
133 case BR_STATE_BLOCKING:
134 spms_state = MLXSW_REG_SPMS_STATE_DISCARDING;
135 break;
136 default:
137 BUG();
138 }
139
140 spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
141 if (!spms_pl)
142 return -ENOMEM;
143 mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
144
145 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
146 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
147 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
148 } else {
149 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
150 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
151 }
152
153 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
154 kfree(spms_pl);
155 return err;
156 }
157
158 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
159 struct switchdev_trans *trans,
160 u8 state)
161 {
162 if (switchdev_trans_ph_prepare(trans))
163 return 0;
164
165 mlxsw_sp_port->stp_state = state;
166 return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state);
167 }
168
169 static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
170 u16 idx_begin, u16 idx_end, bool set,
171 bool only_uc)
172 {
173 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
174 u16 local_port = mlxsw_sp_port->local_port;
175 enum mlxsw_flood_table_type table_type;
176 u16 range = idx_end - idx_begin + 1;
177 char *sftr_pl;
178 int err;
179
180 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
181 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
182 else
183 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
184
185 sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
186 if (!sftr_pl)
187 return -ENOMEM;
188
189 mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
190 table_type, range, local_port, set);
191 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
192 if (err)
193 goto buffer_out;
194
195 /* Flooding control allows one to decide whether a given port will
196 * flood unicast traffic for which there is no FDB entry.
197 */
198 if (only_uc)
199 goto buffer_out;
200
201 mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin,
202 table_type, range, local_port, set);
203 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
204 if (err)
205 goto err_flood_bm_set;
206 else
207 goto buffer_out;
208
209 err_flood_bm_set:
210 mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, idx_begin,
211 table_type, range, local_port, !set);
212 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
213 buffer_out:
214 kfree(sftr_pl);
215 return err;
216 }
217
218 static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
219 bool set)
220 {
221 struct net_device *dev = mlxsw_sp_port->dev;
222 u16 vid, last_visited_vid;
223 int err;
224
225 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
226 u16 fid = mlxsw_sp_vport_fid_get(mlxsw_sp_port)->fid;
227 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
228
229 return __mlxsw_sp_port_flood_set(mlxsw_sp_port, vfid, vfid,
230 set, true);
231 }
232
233 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
234 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set,
235 true);
236 if (err) {
237 last_visited_vid = vid;
238 goto err_port_flood_set;
239 }
240 }
241
242 return 0;
243
244 err_port_flood_set:
245 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
246 __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true);
247 netdev_err(dev, "Failed to configure unicast flooding\n");
248 return err;
249 }
250
251 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
252 bool set)
253 {
254 u16 vfid;
255
256 /* In case of vFIDs, index into the flooding table is relative to
257 * the start of the vFIDs range.
258 */
259 vfid = mlxsw_sp_fid_to_vfid(fid);
260 return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set,
261 false);
262 }
263
264 static int mlxsw_sp_port_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
265 bool set)
266 {
267 u16 vid;
268 int err;
269
270 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
271 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
272
273 return __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
274 set);
275 }
276
277 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
278 err = __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid,
279 set);
280 if (err)
281 goto err_port_vid_learning_set;
282 }
283
284 return 0;
285
286 err_port_vid_learning_set:
287 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
288 __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid, !set);
289 return err;
290 }
291
292 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
293 struct switchdev_trans *trans,
294 unsigned long brport_flags)
295 {
296 unsigned long learning = mlxsw_sp_port->learning ? BR_LEARNING : 0;
297 unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
298 int err;
299
300 if (!mlxsw_sp_port->bridged)
301 return -EINVAL;
302
303 if (switchdev_trans_ph_prepare(trans))
304 return 0;
305
306 if ((uc_flood ^ brport_flags) & BR_FLOOD) {
307 err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port,
308 !mlxsw_sp_port->uc_flood);
309 if (err)
310 return err;
311 }
312
313 if ((learning ^ brport_flags) & BR_LEARNING) {
314 err = mlxsw_sp_port_learning_set(mlxsw_sp_port,
315 !mlxsw_sp_port->learning);
316 if (err)
317 goto err_port_learning_set;
318 }
319
320 mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
321 mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
322 mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
323
324 return 0;
325
326 err_port_learning_set:
327 if ((uc_flood ^ brport_flags) & BR_FLOOD)
328 mlxsw_sp_port_uc_flood_set(mlxsw_sp_port,
329 mlxsw_sp_port->uc_flood);
330 return err;
331 }
332
333 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
334 {
335 char sfdat_pl[MLXSW_REG_SFDAT_LEN];
336 int err;
337
338 mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
339 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
340 if (err)
341 return err;
342 mlxsw_sp->ageing_time = ageing_time;
343 return 0;
344 }
345
346 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
347 struct switchdev_trans *trans,
348 unsigned long ageing_clock_t)
349 {
350 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
351 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
352 u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
353
354 if (switchdev_trans_ph_prepare(trans)) {
355 if (ageing_time < MLXSW_SP_MIN_AGEING_TIME ||
356 ageing_time > MLXSW_SP_MAX_AGEING_TIME)
357 return -ERANGE;
358 else
359 return 0;
360 }
361
362 return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
363 }
364
365 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
366 struct switchdev_trans *trans,
367 struct net_device *orig_dev,
368 bool vlan_enabled)
369 {
370 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
371
372 /* SWITCHDEV_TRANS_PREPARE phase */
373 if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
374 netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
375 return -EINVAL;
376 }
377
378 return 0;
379 }
380
381 static int mlxsw_sp_port_attr_set(struct net_device *dev,
382 const struct switchdev_attr *attr,
383 struct switchdev_trans *trans)
384 {
385 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
386 int err = 0;
387
388 mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
389 if (!mlxsw_sp_port)
390 return -EINVAL;
391
392 switch (attr->id) {
393 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
394 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
395 attr->u.stp_state);
396 break;
397 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
398 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
399 attr->u.brport_flags);
400 break;
401 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
402 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
403 attr->u.ageing_time);
404 break;
405 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
406 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
407 attr->orig_dev,
408 attr->u.vlan_filtering);
409 break;
410 default:
411 err = -EOPNOTSUPP;
412 break;
413 }
414
415 return err;
416 }
417
418 static int mlxsw_sp_fid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
419 {
420 char sfmr_pl[MLXSW_REG_SFMR_LEN];
421
422 mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, fid);
423 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
424 }
425
426 static int mlxsw_sp_fid_map(struct mlxsw_sp *mlxsw_sp, u16 fid, bool valid)
427 {
428 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
429 char svfa_pl[MLXSW_REG_SVFA_LEN];
430
431 mlxsw_reg_svfa_pack(svfa_pl, 0, mt, valid, fid, fid);
432 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
433 }
434
435 static struct mlxsw_sp_fid *mlxsw_sp_fid_alloc(u16 fid)
436 {
437 struct mlxsw_sp_fid *f;
438
439 f = kzalloc(sizeof(*f), GFP_KERNEL);
440 if (!f)
441 return NULL;
442
443 f->fid = fid;
444
445 return f;
446 }
447
448 struct mlxsw_sp_fid *mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
449 {
450 struct mlxsw_sp_fid *f;
451 int err;
452
453 err = mlxsw_sp_fid_op(mlxsw_sp, fid, true);
454 if (err)
455 return ERR_PTR(err);
456
457 /* Although all the ports member in the FID might be using a
458 * {Port, VID} to FID mapping, we create a global VID-to-FID
459 * mapping. This allows a port to transition to VLAN mode,
460 * knowing the global mapping exists.
461 */
462 err = mlxsw_sp_fid_map(mlxsw_sp, fid, true);
463 if (err)
464 goto err_fid_map;
465
466 f = mlxsw_sp_fid_alloc(fid);
467 if (!f) {
468 err = -ENOMEM;
469 goto err_allocate_fid;
470 }
471
472 list_add(&f->list, &mlxsw_sp->fids);
473
474 return f;
475
476 err_allocate_fid:
477 mlxsw_sp_fid_map(mlxsw_sp, fid, false);
478 err_fid_map:
479 mlxsw_sp_fid_op(mlxsw_sp, fid, false);
480 return ERR_PTR(err);
481 }
482
483 void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *f)
484 {
485 u16 fid = f->fid;
486
487 list_del(&f->list);
488
489 if (f->r)
490 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
491
492 kfree(f);
493
494 mlxsw_sp_fid_map(mlxsw_sp, fid, false);
495
496 mlxsw_sp_fid_op(mlxsw_sp, fid, false);
497 }
498
499 static int __mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
500 u16 fid)
501 {
502 struct mlxsw_sp_fid *f;
503
504 f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
505 if (!f) {
506 f = mlxsw_sp_fid_create(mlxsw_sp_port->mlxsw_sp, fid);
507 if (IS_ERR(f))
508 return PTR_ERR(f);
509 }
510
511 f->ref_count++;
512
513 netdev_dbg(mlxsw_sp_port->dev, "Joined FID=%d\n", fid);
514
515 return 0;
516 }
517
518 static void __mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
519 u16 fid)
520 {
521 struct mlxsw_sp_fid *f;
522
523 f = mlxsw_sp_fid_find(mlxsw_sp_port->mlxsw_sp, fid);
524 if (WARN_ON(!f))
525 return;
526
527 netdev_dbg(mlxsw_sp_port->dev, "Left FID=%d\n", fid);
528
529 mlxsw_sp_port_fdb_flush(mlxsw_sp_port, fid);
530
531 if (--f->ref_count == 0)
532 mlxsw_sp_fid_destroy(mlxsw_sp_port->mlxsw_sp, f);
533 }
534
535 static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid,
536 bool valid)
537 {
538 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
539
540 /* If port doesn't have vPorts, then it can use the global
541 * VID-to-FID mapping.
542 */
543 if (list_empty(&mlxsw_sp_port->vports_list))
544 return 0;
545
546 return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, valid, fid, fid);
547 }
548
549 static int mlxsw_sp_port_fid_join(struct mlxsw_sp_port *mlxsw_sp_port,
550 u16 fid_begin, u16 fid_end)
551 {
552 int fid, err;
553
554 for (fid = fid_begin; fid <= fid_end; fid++) {
555 err = __mlxsw_sp_port_fid_join(mlxsw_sp_port, fid);
556 if (err)
557 goto err_port_fid_join;
558 }
559
560 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end,
561 true, false);
562 if (err)
563 goto err_port_flood_set;
564
565 for (fid = fid_begin; fid <= fid_end; fid++) {
566 err = mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, true);
567 if (err)
568 goto err_port_fid_map;
569 }
570
571 return 0;
572
573 err_port_fid_map:
574 for (fid--; fid >= fid_begin; fid--)
575 mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
576 __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
577 false);
578 err_port_flood_set:
579 fid = fid_end;
580 err_port_fid_join:
581 for (fid--; fid >= fid_begin; fid--)
582 __mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
583 return err;
584 }
585
586 static void mlxsw_sp_port_fid_leave(struct mlxsw_sp_port *mlxsw_sp_port,
587 u16 fid_begin, u16 fid_end)
588 {
589 int fid;
590
591 for (fid = fid_begin; fid <= fid_end; fid++)
592 mlxsw_sp_port_fid_map(mlxsw_sp_port, fid, false);
593
594 __mlxsw_sp_port_flood_set(mlxsw_sp_port, fid_begin, fid_end, false,
595 false);
596
597 for (fid = fid_begin; fid <= fid_end; fid++)
598 __mlxsw_sp_port_fid_leave(mlxsw_sp_port, fid);
599 }
600
601 static int __mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port,
602 u16 vid)
603 {
604 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
605 char spvid_pl[MLXSW_REG_SPVID_LEN];
606
607 mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
608 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
609 }
610
611 static int mlxsw_sp_port_allow_untagged_set(struct mlxsw_sp_port *mlxsw_sp_port,
612 bool allow)
613 {
614 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
615 char spaft_pl[MLXSW_REG_SPAFT_LEN];
616
617 mlxsw_reg_spaft_pack(spaft_pl, mlxsw_sp_port->local_port, allow);
618 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spaft), spaft_pl);
619 }
620
621 int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
622 {
623 struct net_device *dev = mlxsw_sp_port->dev;
624 int err;
625
626 if (!vid) {
627 err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port, false);
628 if (err) {
629 netdev_err(dev, "Failed to disallow untagged traffic\n");
630 return err;
631 }
632 } else {
633 err = __mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid);
634 if (err) {
635 netdev_err(dev, "Failed to set PVID\n");
636 return err;
637 }
638
639 /* Only allow if not already allowed. */
640 if (!mlxsw_sp_port->pvid) {
641 err = mlxsw_sp_port_allow_untagged_set(mlxsw_sp_port,
642 true);
643 if (err) {
644 netdev_err(dev, "Failed to allow untagged traffic\n");
645 goto err_port_allow_untagged_set;
646 }
647 }
648 }
649
650 mlxsw_sp_port->pvid = vid;
651 return 0;
652
653 err_port_allow_untagged_set:
654 __mlxsw_sp_port_pvid_set(mlxsw_sp_port, mlxsw_sp_port->pvid);
655 return err;
656 }
657
658 static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
659 u16 vid_begin, u16 vid_end, bool is_member,
660 bool untagged)
661 {
662 u16 vid, vid_e;
663 int err;
664
665 for (vid = vid_begin; vid <= vid_end;
666 vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
667 vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
668 vid_end);
669
670 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
671 is_member, untagged);
672 if (err)
673 return err;
674 }
675
676 return 0;
677 }
678
679 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
680 u16 vid_begin, u16 vid_end,
681 bool learn_enable)
682 {
683 u16 vid, vid_e;
684 int err;
685
686 for (vid = vid_begin; vid <= vid_end;
687 vid += MLXSW_REG_SPVMLR_REC_MAX_COUNT) {
688 vid_e = min((u16) (vid + MLXSW_REG_SPVMLR_REC_MAX_COUNT - 1),
689 vid_end);
690
691 err = __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid,
692 vid_e, learn_enable);
693 if (err)
694 return err;
695 }
696
697 return 0;
698 }
699
700 static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
701 u16 vid_begin, u16 vid_end,
702 bool flag_untagged, bool flag_pvid)
703 {
704 struct net_device *dev = mlxsw_sp_port->dev;
705 u16 vid, old_pvid;
706 int err;
707
708 if (!mlxsw_sp_port->bridged)
709 return -EINVAL;
710
711 err = mlxsw_sp_port_fid_join(mlxsw_sp_port, vid_begin, vid_end);
712 if (err) {
713 netdev_err(dev, "Failed to join FIDs\n");
714 return err;
715 }
716
717 err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
718 true, flag_untagged);
719 if (err) {
720 netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
721 vid_end);
722 goto err_port_vlans_set;
723 }
724
725 old_pvid = mlxsw_sp_port->pvid;
726 if (flag_pvid && old_pvid != vid_begin) {
727 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
728 if (err) {
729 netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
730 goto err_port_pvid_set;
731 }
732 } else if (!flag_pvid && old_pvid >= vid_begin && old_pvid <= vid_end) {
733 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
734 if (err) {
735 netdev_err(dev, "Unable to del PVID\n");
736 goto err_port_pvid_set;
737 }
738 }
739
740 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
741 mlxsw_sp_port->learning);
742 if (err) {
743 netdev_err(dev, "Failed to set learning for VIDs %d-%d\n",
744 vid_begin, vid_end);
745 goto err_port_vid_learning_set;
746 }
747
748 /* Changing activity bits only if HW operation succeded */
749 for (vid = vid_begin; vid <= vid_end; vid++) {
750 set_bit(vid, mlxsw_sp_port->active_vlans);
751 if (flag_untagged)
752 set_bit(vid, mlxsw_sp_port->untagged_vlans);
753 else
754 clear_bit(vid, mlxsw_sp_port->untagged_vlans);
755 }
756
757 /* STP state change must be done after we set active VLANs */
758 err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
759 mlxsw_sp_port->stp_state);
760 if (err) {
761 netdev_err(dev, "Failed to set STP state\n");
762 goto err_port_stp_state_set;
763 }
764
765 return 0;
766
767 err_port_stp_state_set:
768 for (vid = vid_begin; vid <= vid_end; vid++)
769 clear_bit(vid, mlxsw_sp_port->active_vlans);
770 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
771 false);
772 err_port_vid_learning_set:
773 if (old_pvid != mlxsw_sp_port->pvid)
774 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
775 err_port_pvid_set:
776 __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
777 false);
778 err_port_vlans_set:
779 mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
780 return err;
781 }
782
783 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
784 const struct switchdev_obj_port_vlan *vlan,
785 struct switchdev_trans *trans)
786 {
787 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
788 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
789
790 if (switchdev_trans_ph_prepare(trans))
791 return 0;
792
793 return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
794 vlan->vid_begin, vlan->vid_end,
795 flag_untagged, flag_pvid);
796 }
797
798 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
799 {
800 return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
801 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
802 }
803
804 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
805 {
806 return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
807 MLXSW_REG_SFD_OP_WRITE_REMOVE;
808 }
809
810 static int __mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
811 const char *mac, u16 fid, bool adding,
812 enum mlxsw_reg_sfd_rec_action action,
813 bool dynamic)
814 {
815 char *sfd_pl;
816 int err;
817
818 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
819 if (!sfd_pl)
820 return -ENOMEM;
821
822 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
823 mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
824 mac, fid, action, local_port);
825 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
826 kfree(sfd_pl);
827
828 return err;
829 }
830
831 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
832 const char *mac, u16 fid, bool adding,
833 bool dynamic)
834 {
835 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid, adding,
836 MLXSW_REG_SFD_REC_ACTION_NOP, dynamic);
837 }
838
839 int mlxsw_sp_rif_fdb_op(struct mlxsw_sp *mlxsw_sp, const char *mac, u16 fid,
840 bool adding)
841 {
842 return __mlxsw_sp_port_fdb_uc_op(mlxsw_sp, 0, mac, fid, adding,
843 MLXSW_REG_SFD_REC_ACTION_FORWARD_IP_ROUTER,
844 false);
845 }
846
847 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
848 const char *mac, u16 fid, u16 lag_vid,
849 bool adding, bool dynamic)
850 {
851 char *sfd_pl;
852 int err;
853
854 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
855 if (!sfd_pl)
856 return -ENOMEM;
857
858 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
859 mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
860 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
861 lag_vid, lag_id);
862 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
863 kfree(sfd_pl);
864
865 return err;
866 }
867
868 static int
869 mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
870 const struct switchdev_obj_port_fdb *fdb,
871 struct switchdev_trans *trans)
872 {
873 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
874 u16 lag_vid = 0;
875
876 if (switchdev_trans_ph_prepare(trans))
877 return 0;
878
879 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
880 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
881 }
882
883 if (!mlxsw_sp_port->lagged)
884 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
885 mlxsw_sp_port->local_port,
886 fdb->addr, fid, true, false);
887 else
888 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
889 mlxsw_sp_port->lag_id,
890 fdb->addr, fid, lag_vid,
891 true, false);
892 }
893
894 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
895 u16 fid, u16 mid, bool adding)
896 {
897 char *sfd_pl;
898 int err;
899
900 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
901 if (!sfd_pl)
902 return -ENOMEM;
903
904 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
905 mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
906 MLXSW_REG_SFD_REC_ACTION_NOP, mid);
907 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
908 kfree(sfd_pl);
909 return err;
910 }
911
912 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid,
913 bool add, bool clear_all_ports)
914 {
915 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
916 char *smid_pl;
917 int err, i;
918
919 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
920 if (!smid_pl)
921 return -ENOMEM;
922
923 mlxsw_reg_smid_pack(smid_pl, mid, mlxsw_sp_port->local_port, add);
924 if (clear_all_ports) {
925 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
926 if (mlxsw_sp->ports[i])
927 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
928 }
929 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
930 kfree(smid_pl);
931 return err;
932 }
933
934 static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp *mlxsw_sp,
935 const unsigned char *addr,
936 u16 vid)
937 {
938 struct mlxsw_sp_mid *mid;
939
940 list_for_each_entry(mid, &mlxsw_sp->br_mids.list, list) {
941 if (ether_addr_equal(mid->addr, addr) && mid->vid == vid)
942 return mid;
943 }
944 return NULL;
945 }
946
947 static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
948 const unsigned char *addr,
949 u16 vid)
950 {
951 struct mlxsw_sp_mid *mid;
952 u16 mid_idx;
953
954 mid_idx = find_first_zero_bit(mlxsw_sp->br_mids.mapped,
955 MLXSW_SP_MID_MAX);
956 if (mid_idx == MLXSW_SP_MID_MAX)
957 return NULL;
958
959 mid = kzalloc(sizeof(*mid), GFP_KERNEL);
960 if (!mid)
961 return NULL;
962
963 set_bit(mid_idx, mlxsw_sp->br_mids.mapped);
964 ether_addr_copy(mid->addr, addr);
965 mid->vid = vid;
966 mid->mid = mid_idx;
967 mid->ref_count = 0;
968 list_add_tail(&mid->list, &mlxsw_sp->br_mids.list);
969
970 return mid;
971 }
972
973 static int __mlxsw_sp_mc_dec_ref(struct mlxsw_sp *mlxsw_sp,
974 struct mlxsw_sp_mid *mid)
975 {
976 if (--mid->ref_count == 0) {
977 list_del(&mid->list);
978 clear_bit(mid->mid, mlxsw_sp->br_mids.mapped);
979 kfree(mid);
980 return 1;
981 }
982 return 0;
983 }
984
985 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
986 const struct switchdev_obj_port_mdb *mdb,
987 struct switchdev_trans *trans)
988 {
989 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
990 struct net_device *dev = mlxsw_sp_port->dev;
991 struct mlxsw_sp_mid *mid;
992 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
993 int err = 0;
994
995 if (switchdev_trans_ph_prepare(trans))
996 return 0;
997
998 mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, mdb->vid);
999 if (!mid) {
1000 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, mdb->addr, mdb->vid);
1001 if (!mid) {
1002 netdev_err(dev, "Unable to allocate MC group\n");
1003 return -ENOMEM;
1004 }
1005 }
1006 mid->ref_count++;
1007
1008 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true,
1009 mid->ref_count == 1);
1010 if (err) {
1011 netdev_err(dev, "Unable to set SMID\n");
1012 goto err_out;
1013 }
1014
1015 if (mid->ref_count == 1) {
1016 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid->mid,
1017 true);
1018 if (err) {
1019 netdev_err(dev, "Unable to set MC SFD\n");
1020 goto err_out;
1021 }
1022 }
1023
1024 return 0;
1025
1026 err_out:
1027 __mlxsw_sp_mc_dec_ref(mlxsw_sp, mid);
1028 return err;
1029 }
1030
1031 static int mlxsw_sp_port_obj_add(struct net_device *dev,
1032 const struct switchdev_obj *obj,
1033 struct switchdev_trans *trans)
1034 {
1035 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1036 int err = 0;
1037
1038 mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1039 if (!mlxsw_sp_port)
1040 return -EINVAL;
1041
1042 switch (obj->id) {
1043 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1044 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
1045 return 0;
1046
1047 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
1048 SWITCHDEV_OBJ_PORT_VLAN(obj),
1049 trans);
1050 break;
1051 case SWITCHDEV_OBJ_ID_IPV4_FIB:
1052 err = mlxsw_sp_router_fib4_add(mlxsw_sp_port,
1053 SWITCHDEV_OBJ_IPV4_FIB(obj),
1054 trans);
1055 break;
1056 case SWITCHDEV_OBJ_ID_PORT_FDB:
1057 err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
1058 SWITCHDEV_OBJ_PORT_FDB(obj),
1059 trans);
1060 break;
1061 case SWITCHDEV_OBJ_ID_PORT_MDB:
1062 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
1063 SWITCHDEV_OBJ_PORT_MDB(obj),
1064 trans);
1065 break;
1066 default:
1067 err = -EOPNOTSUPP;
1068 break;
1069 }
1070
1071 return err;
1072 }
1073
1074 static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1075 u16 vid_begin, u16 vid_end)
1076 {
1077 u16 vid, pvid;
1078
1079 if (!mlxsw_sp_port->bridged)
1080 return -EINVAL;
1081
1082 mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid_begin, vid_end,
1083 false);
1084
1085 pvid = mlxsw_sp_port->pvid;
1086 if (pvid >= vid_begin && pvid <= vid_end)
1087 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 0);
1088
1089 __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
1090 false);
1091
1092 mlxsw_sp_port_fid_leave(mlxsw_sp_port, vid_begin, vid_end);
1093
1094 /* Changing activity bits only if HW operation succeded */
1095 for (vid = vid_begin; vid <= vid_end; vid++)
1096 clear_bit(vid, mlxsw_sp_port->active_vlans);
1097
1098 return 0;
1099 }
1100
1101 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
1102 const struct switchdev_obj_port_vlan *vlan)
1103 {
1104 return __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vlan->vid_begin,
1105 vlan->vid_end);
1106 }
1107
1108 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port)
1109 {
1110 u16 vid;
1111
1112 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
1113 __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vid, vid);
1114 }
1115
1116 static int
1117 mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
1118 const struct switchdev_obj_port_fdb *fdb)
1119 {
1120 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
1121 u16 lag_vid = 0;
1122
1123 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1124 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1125 }
1126
1127 if (!mlxsw_sp_port->lagged)
1128 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
1129 mlxsw_sp_port->local_port,
1130 fdb->addr, fid,
1131 false, false);
1132 else
1133 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
1134 mlxsw_sp_port->lag_id,
1135 fdb->addr, fid, lag_vid,
1136 false, false);
1137 }
1138
1139 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
1140 const struct switchdev_obj_port_mdb *mdb)
1141 {
1142 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1143 struct net_device *dev = mlxsw_sp_port->dev;
1144 struct mlxsw_sp_mid *mid;
1145 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
1146 u16 mid_idx;
1147 int err = 0;
1148
1149 mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, mdb->vid);
1150 if (!mid) {
1151 netdev_err(dev, "Unable to remove port from MC DB\n");
1152 return -EINVAL;
1153 }
1154
1155 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false, false);
1156 if (err)
1157 netdev_err(dev, "Unable to remove port from SMID\n");
1158
1159 mid_idx = mid->mid;
1160 if (__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid)) {
1161 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid_idx,
1162 false);
1163 if (err)
1164 netdev_err(dev, "Unable to remove MC SFD\n");
1165 }
1166
1167 return err;
1168 }
1169
1170 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1171 const struct switchdev_obj *obj)
1172 {
1173 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1174 int err = 0;
1175
1176 mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1177 if (!mlxsw_sp_port)
1178 return -EINVAL;
1179
1180 switch (obj->id) {
1181 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1182 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
1183 return 0;
1184
1185 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1186 SWITCHDEV_OBJ_PORT_VLAN(obj));
1187 break;
1188 case SWITCHDEV_OBJ_ID_IPV4_FIB:
1189 err = mlxsw_sp_router_fib4_del(mlxsw_sp_port,
1190 SWITCHDEV_OBJ_IPV4_FIB(obj));
1191 break;
1192 case SWITCHDEV_OBJ_ID_PORT_FDB:
1193 err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
1194 SWITCHDEV_OBJ_PORT_FDB(obj));
1195 break;
1196 case SWITCHDEV_OBJ_ID_PORT_MDB:
1197 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1198 SWITCHDEV_OBJ_PORT_MDB(obj));
1199 break;
1200 default:
1201 err = -EOPNOTSUPP;
1202 break;
1203 }
1204
1205 return err;
1206 }
1207
1208 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1209 u16 lag_id)
1210 {
1211 struct mlxsw_sp_port *mlxsw_sp_port;
1212 int i;
1213
1214 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
1215 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1216 if (mlxsw_sp_port)
1217 return mlxsw_sp_port;
1218 }
1219 return NULL;
1220 }
1221
1222 static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1223 struct switchdev_obj_port_fdb *fdb,
1224 switchdev_obj_dump_cb_t *cb,
1225 struct net_device *orig_dev)
1226 {
1227 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1228 struct mlxsw_sp_port *tmp;
1229 struct mlxsw_sp_fid *f;
1230 u16 vport_fid;
1231 char *sfd_pl;
1232 char mac[ETH_ALEN];
1233 u16 fid;
1234 u8 local_port;
1235 u16 lag_id;
1236 u8 num_rec;
1237 int stored_err = 0;
1238 int i;
1239 int err;
1240
1241 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1242 if (!sfd_pl)
1243 return -ENOMEM;
1244
1245 f = mlxsw_sp_vport_fid_get(mlxsw_sp_port);
1246 vport_fid = f ? f->fid : 0;
1247
1248 mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
1249 do {
1250 mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
1251 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1252 if (err)
1253 goto out;
1254
1255 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1256
1257 /* Even in case of error, we have to run the dump to the end
1258 * so the session in firmware is finished.
1259 */
1260 if (stored_err)
1261 continue;
1262
1263 for (i = 0; i < num_rec; i++) {
1264 switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
1265 case MLXSW_REG_SFD_REC_TYPE_UNICAST:
1266 mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
1267 &local_port);
1268 if (local_port == mlxsw_sp_port->local_port) {
1269 if (vport_fid && vport_fid == fid)
1270 fdb->vid = 0;
1271 else if (!vport_fid &&
1272 !mlxsw_sp_fid_is_vfid(fid))
1273 fdb->vid = fid;
1274 else
1275 continue;
1276 ether_addr_copy(fdb->addr, mac);
1277 fdb->ndm_state = NUD_REACHABLE;
1278 err = cb(&fdb->obj);
1279 if (err)
1280 stored_err = err;
1281 }
1282 break;
1283 case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
1284 mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
1285 mac, &fid, &lag_id);
1286 tmp = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1287 if (tmp && tmp->local_port ==
1288 mlxsw_sp_port->local_port) {
1289 /* LAG records can only point to LAG
1290 * devices or VLAN devices on top.
1291 */
1292 if (!netif_is_lag_master(orig_dev) &&
1293 !is_vlan_dev(orig_dev))
1294 continue;
1295 if (vport_fid && vport_fid == fid)
1296 fdb->vid = 0;
1297 else if (!vport_fid &&
1298 !mlxsw_sp_fid_is_vfid(fid))
1299 fdb->vid = fid;
1300 else
1301 continue;
1302 ether_addr_copy(fdb->addr, mac);
1303 fdb->ndm_state = NUD_REACHABLE;
1304 err = cb(&fdb->obj);
1305 if (err)
1306 stored_err = err;
1307 }
1308 break;
1309 }
1310 }
1311 } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);
1312
1313 out:
1314 kfree(sfd_pl);
1315 return stored_err ? stored_err : err;
1316 }
1317
1318 static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1319 struct switchdev_obj_port_vlan *vlan,
1320 switchdev_obj_dump_cb_t *cb)
1321 {
1322 u16 vid;
1323 int err = 0;
1324
1325 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1326 vlan->flags = 0;
1327 vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1328 vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1329 return cb(&vlan->obj);
1330 }
1331
1332 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
1333 vlan->flags = 0;
1334 if (vid == mlxsw_sp_port->pvid)
1335 vlan->flags |= BRIDGE_VLAN_INFO_PVID;
1336 if (test_bit(vid, mlxsw_sp_port->untagged_vlans))
1337 vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
1338 vlan->vid_begin = vid;
1339 vlan->vid_end = vid;
1340 err = cb(&vlan->obj);
1341 if (err)
1342 break;
1343 }
1344 return err;
1345 }
1346
1347 static int mlxsw_sp_port_obj_dump(struct net_device *dev,
1348 struct switchdev_obj *obj,
1349 switchdev_obj_dump_cb_t *cb)
1350 {
1351 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1352 int err = 0;
1353
1354 mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1355 if (!mlxsw_sp_port)
1356 return -EINVAL;
1357
1358 switch (obj->id) {
1359 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1360 err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
1361 SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
1362 break;
1363 case SWITCHDEV_OBJ_ID_PORT_FDB:
1364 err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
1365 SWITCHDEV_OBJ_PORT_FDB(obj), cb,
1366 obj->orig_dev);
1367 break;
1368 default:
1369 err = -EOPNOTSUPP;
1370 break;
1371 }
1372
1373 return err;
1374 }
1375
1376 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1377 .switchdev_port_attr_get = mlxsw_sp_port_attr_get,
1378 .switchdev_port_attr_set = mlxsw_sp_port_attr_set,
1379 .switchdev_port_obj_add = mlxsw_sp_port_obj_add,
1380 .switchdev_port_obj_del = mlxsw_sp_port_obj_del,
1381 .switchdev_port_obj_dump = mlxsw_sp_port_obj_dump,
1382 };
1383
1384 static void mlxsw_sp_fdb_call_notifiers(bool learning_sync, bool adding,
1385 char *mac, u16 vid,
1386 struct net_device *dev)
1387 {
1388 struct switchdev_notifier_fdb_info info;
1389 unsigned long notifier_type;
1390
1391 if (learning_sync) {
1392 info.addr = mac;
1393 info.vid = vid;
1394 notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
1395 call_switchdev_notifiers(notifier_type, dev, &info.info);
1396 }
1397 }
1398
1399 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1400 char *sfn_pl, int rec_index,
1401 bool adding)
1402 {
1403 struct mlxsw_sp_port *mlxsw_sp_port;
1404 char mac[ETH_ALEN];
1405 u8 local_port;
1406 u16 vid, fid;
1407 bool do_notification = true;
1408 int err;
1409
1410 mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1411 mlxsw_sp_port = mlxsw_sp->ports[local_port];
1412 if (!mlxsw_sp_port) {
1413 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1414 goto just_remove;
1415 }
1416
1417 if (mlxsw_sp_fid_is_vfid(fid)) {
1418 struct mlxsw_sp_port *mlxsw_sp_vport;
1419
1420 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
1421 fid);
1422 if (!mlxsw_sp_vport) {
1423 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1424 goto just_remove;
1425 }
1426 vid = 0;
1427 /* Override the physical port with the vPort. */
1428 mlxsw_sp_port = mlxsw_sp_vport;
1429 } else {
1430 vid = fid;
1431 }
1432
1433 do_fdb_op:
1434 err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
1435 adding, true);
1436 if (err) {
1437 if (net_ratelimit())
1438 netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1439 return;
1440 }
1441
1442 if (!do_notification)
1443 return;
1444 mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync,
1445 adding, mac, vid, mlxsw_sp_port->dev);
1446 return;
1447
1448 just_remove:
1449 adding = false;
1450 do_notification = false;
1451 goto do_fdb_op;
1452 }
1453
1454 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
1455 char *sfn_pl, int rec_index,
1456 bool adding)
1457 {
1458 struct mlxsw_sp_port *mlxsw_sp_port;
1459 struct net_device *dev;
1460 char mac[ETH_ALEN];
1461 u16 lag_vid = 0;
1462 u16 lag_id;
1463 u16 vid, fid;
1464 bool do_notification = true;
1465 int err;
1466
1467 mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1468 mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1469 if (!mlxsw_sp_port) {
1470 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1471 goto just_remove;
1472 }
1473
1474 if (mlxsw_sp_fid_is_vfid(fid)) {
1475 struct mlxsw_sp_port *mlxsw_sp_vport;
1476
1477 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_fid(mlxsw_sp_port,
1478 fid);
1479 if (!mlxsw_sp_vport) {
1480 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1481 goto just_remove;
1482 }
1483
1484 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1485 dev = mlxsw_sp_vport->dev;
1486 vid = 0;
1487 /* Override the physical port with the vPort. */
1488 mlxsw_sp_port = mlxsw_sp_vport;
1489 } else {
1490 dev = mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev;
1491 vid = fid;
1492 }
1493
1494 do_fdb_op:
1495 err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1496 adding, true);
1497 if (err) {
1498 if (net_ratelimit())
1499 netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1500 return;
1501 }
1502
1503 if (!do_notification)
1504 return;
1505 mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync, adding, mac,
1506 vid, dev);
1507 return;
1508
1509 just_remove:
1510 adding = false;
1511 do_notification = false;
1512 goto do_fdb_op;
1513 }
1514
1515 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
1516 char *sfn_pl, int rec_index)
1517 {
1518 switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
1519 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
1520 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1521 rec_index, true);
1522 break;
1523 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
1524 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1525 rec_index, false);
1526 break;
1527 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
1528 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1529 rec_index, true);
1530 break;
1531 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
1532 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1533 rec_index, false);
1534 break;
1535 }
1536 }
1537
1538 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
1539 {
1540 mlxsw_core_schedule_dw(&mlxsw_sp->fdb_notify.dw,
1541 msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
1542 }
1543
1544 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
1545 {
1546 struct mlxsw_sp *mlxsw_sp;
1547 char *sfn_pl;
1548 u8 num_rec;
1549 int i;
1550 int err;
1551
1552 sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
1553 if (!sfn_pl)
1554 return;
1555
1556 mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
1557
1558 rtnl_lock();
1559 mlxsw_reg_sfn_pack(sfn_pl);
1560 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
1561 if (err) {
1562 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
1563 goto out;
1564 }
1565 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
1566 for (i = 0; i < num_rec; i++)
1567 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
1568
1569 out:
1570 rtnl_unlock();
1571 kfree(sfn_pl);
1572 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1573 }
1574
1575 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
1576 {
1577 int err;
1578
1579 err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
1580 if (err) {
1581 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
1582 return err;
1583 }
1584 INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
1585 mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
1586 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1587 return 0;
1588 }
1589
1590 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
1591 {
1592 cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
1593 }
1594
1595 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
1596 {
1597 return mlxsw_sp_fdb_init(mlxsw_sp);
1598 }
1599
1600 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
1601 {
1602 mlxsw_sp_fdb_fini(mlxsw_sp);
1603 }
1604
1605 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
1606 {
1607 mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
1608 }
1609
1610 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
1611 {
1612 }