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mlxsw: spectrum: Don't report VLAN for 802.1D FDB entries
[deliverable/linux.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 <net/switchdev.h>
49
50 #include "spectrum.h"
51 #include "core.h"
52 #include "reg.h"
53
54 static u16 mlxsw_sp_port_vid_to_fid_get(struct mlxsw_sp_port *mlxsw_sp_port,
55 u16 vid)
56 {
57 u16 fid = vid;
58
59 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
60 u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
61
62 fid = mlxsw_sp_vfid_to_fid(vfid);
63 }
64
65 if (!fid)
66 fid = mlxsw_sp_port->pvid;
67
68 return fid;
69 }
70
71 static struct mlxsw_sp_port *
72 mlxsw_sp_port_orig_get(struct net_device *dev,
73 struct mlxsw_sp_port *mlxsw_sp_port)
74 {
75 struct mlxsw_sp_port *mlxsw_sp_vport;
76 u16 vid;
77
78 if (!is_vlan_dev(dev))
79 return mlxsw_sp_port;
80
81 vid = vlan_dev_vlan_id(dev);
82 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
83 WARN_ON(!mlxsw_sp_vport);
84
85 return mlxsw_sp_vport;
86 }
87
88 static int mlxsw_sp_port_attr_get(struct net_device *dev,
89 struct switchdev_attr *attr)
90 {
91 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
92 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
93
94 mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
95 if (!mlxsw_sp_port)
96 return -EINVAL;
97
98 switch (attr->id) {
99 case SWITCHDEV_ATTR_ID_PORT_PARENT_ID:
100 attr->u.ppid.id_len = sizeof(mlxsw_sp->base_mac);
101 memcpy(&attr->u.ppid.id, &mlxsw_sp->base_mac,
102 attr->u.ppid.id_len);
103 break;
104 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
105 attr->u.brport_flags =
106 (mlxsw_sp_port->learning ? BR_LEARNING : 0) |
107 (mlxsw_sp_port->learning_sync ? BR_LEARNING_SYNC : 0) |
108 (mlxsw_sp_port->uc_flood ? BR_FLOOD : 0);
109 break;
110 default:
111 return -EOPNOTSUPP;
112 }
113
114 return 0;
115 }
116
117 static int mlxsw_sp_port_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
118 u8 state)
119 {
120 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
121 enum mlxsw_reg_spms_state spms_state;
122 char *spms_pl;
123 u16 vid;
124 int err;
125
126 switch (state) {
127 case BR_STATE_FORWARDING:
128 spms_state = MLXSW_REG_SPMS_STATE_FORWARDING;
129 break;
130 case BR_STATE_LEARNING:
131 spms_state = MLXSW_REG_SPMS_STATE_LEARNING;
132 break;
133 case BR_STATE_LISTENING: /* fall-through */
134 case BR_STATE_DISABLED: /* fall-through */
135 case BR_STATE_BLOCKING:
136 spms_state = MLXSW_REG_SPMS_STATE_DISCARDING;
137 break;
138 default:
139 BUG();
140 }
141
142 spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL);
143 if (!spms_pl)
144 return -ENOMEM;
145 mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port);
146
147 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
148 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
149 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
150 } else {
151 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
152 mlxsw_reg_spms_vid_pack(spms_pl, vid, spms_state);
153 }
154
155 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl);
156 kfree(spms_pl);
157 return err;
158 }
159
160 static int mlxsw_sp_port_attr_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port,
161 struct switchdev_trans *trans,
162 u8 state)
163 {
164 if (switchdev_trans_ph_prepare(trans))
165 return 0;
166
167 mlxsw_sp_port->stp_state = state;
168 return mlxsw_sp_port_stp_state_set(mlxsw_sp_port, state);
169 }
170
171 static bool mlxsw_sp_vfid_is_vport_br(u16 vfid)
172 {
173 return vfid >= MLXSW_SP_VFID_PORT_MAX;
174 }
175
176 static int __mlxsw_sp_port_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
177 u16 idx_begin, u16 idx_end, bool set,
178 bool only_uc)
179 {
180 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
181 u16 local_port = mlxsw_sp_port->local_port;
182 enum mlxsw_flood_table_type table_type;
183 u16 range = idx_end - idx_begin + 1;
184 char *sftr_pl;
185 int err;
186
187 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
188 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
189 if (mlxsw_sp_vfid_is_vport_br(idx_begin))
190 local_port = mlxsw_sp_port->local_port;
191 else
192 local_port = MLXSW_PORT_CPU_PORT;
193 } else {
194 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
195 }
196
197 sftr_pl = kmalloc(MLXSW_REG_SFTR_LEN, GFP_KERNEL);
198 if (!sftr_pl)
199 return -ENOMEM;
200
201 mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_UC, 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 buffer_out;
206
207 /* Flooding control allows one to decide whether a given port will
208 * flood unicast traffic for which there is no FDB entry.
209 */
210 if (only_uc)
211 goto buffer_out;
212
213 mlxsw_reg_sftr_pack(sftr_pl, MLXSW_SP_FLOOD_TABLE_BM, idx_begin,
214 table_type, range, local_port, set);
215 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sftr), sftr_pl);
216
217 buffer_out:
218 kfree(sftr_pl);
219 return err;
220 }
221
222 static int mlxsw_sp_port_uc_flood_set(struct mlxsw_sp_port *mlxsw_sp_port,
223 bool set)
224 {
225 struct net_device *dev = mlxsw_sp_port->dev;
226 u16 vid, last_visited_vid;
227 int err;
228
229 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
230 u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
231
232 return __mlxsw_sp_port_flood_set(mlxsw_sp_port, vfid, vfid,
233 set, true);
234 }
235
236 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
237 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, set,
238 true);
239 if (err) {
240 last_visited_vid = vid;
241 goto err_port_flood_set;
242 }
243 }
244
245 return 0;
246
247 err_port_flood_set:
248 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
249 __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid, vid, !set, true);
250 netdev_err(dev, "Failed to configure unicast flooding\n");
251 return err;
252 }
253
254 int mlxsw_sp_vport_flood_set(struct mlxsw_sp_port *mlxsw_sp_vport, u16 vfid,
255 bool set, bool only_uc)
256 {
257 /* In case of vFIDs, index into the flooding table is relative to
258 * the start of the vFIDs range.
259 */
260 return __mlxsw_sp_port_flood_set(mlxsw_sp_vport, vfid, vfid, set,
261 only_uc);
262 }
263
264 static int mlxsw_sp_port_attr_br_flags_set(struct mlxsw_sp_port *mlxsw_sp_port,
265 struct switchdev_trans *trans,
266 unsigned long brport_flags)
267 {
268 unsigned long uc_flood = mlxsw_sp_port->uc_flood ? BR_FLOOD : 0;
269 bool set;
270 int err;
271
272 if (!mlxsw_sp_port->bridged)
273 return -EINVAL;
274
275 if (switchdev_trans_ph_prepare(trans))
276 return 0;
277
278 if ((uc_flood ^ brport_flags) & BR_FLOOD) {
279 set = mlxsw_sp_port->uc_flood ? false : true;
280 err = mlxsw_sp_port_uc_flood_set(mlxsw_sp_port, set);
281 if (err)
282 return err;
283 }
284
285 mlxsw_sp_port->uc_flood = brport_flags & BR_FLOOD ? 1 : 0;
286 mlxsw_sp_port->learning = brport_flags & BR_LEARNING ? 1 : 0;
287 mlxsw_sp_port->learning_sync = brport_flags & BR_LEARNING_SYNC ? 1 : 0;
288
289 return 0;
290 }
291
292 static int mlxsw_sp_ageing_set(struct mlxsw_sp *mlxsw_sp, u32 ageing_time)
293 {
294 char sfdat_pl[MLXSW_REG_SFDAT_LEN];
295 int err;
296
297 mlxsw_reg_sfdat_pack(sfdat_pl, ageing_time);
298 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdat), sfdat_pl);
299 if (err)
300 return err;
301 mlxsw_sp->ageing_time = ageing_time;
302 return 0;
303 }
304
305 static int mlxsw_sp_port_attr_br_ageing_set(struct mlxsw_sp_port *mlxsw_sp_port,
306 struct switchdev_trans *trans,
307 unsigned long ageing_clock_t)
308 {
309 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
310 unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t);
311 u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000;
312
313 if (switchdev_trans_ph_prepare(trans))
314 return 0;
315
316 return mlxsw_sp_ageing_set(mlxsw_sp, ageing_time);
317 }
318
319 static int mlxsw_sp_port_attr_br_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port,
320 struct switchdev_trans *trans,
321 struct net_device *orig_dev,
322 bool vlan_enabled)
323 {
324 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
325
326 /* SWITCHDEV_TRANS_PREPARE phase */
327 if ((!vlan_enabled) && (mlxsw_sp->master_bridge.dev == orig_dev)) {
328 netdev_err(mlxsw_sp_port->dev, "Bridge must be vlan-aware\n");
329 return -EINVAL;
330 }
331
332 return 0;
333 }
334
335 static int mlxsw_sp_port_attr_set(struct net_device *dev,
336 const struct switchdev_attr *attr,
337 struct switchdev_trans *trans)
338 {
339 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
340 int err = 0;
341
342 mlxsw_sp_port = mlxsw_sp_port_orig_get(attr->orig_dev, mlxsw_sp_port);
343 if (!mlxsw_sp_port)
344 return -EINVAL;
345
346 switch (attr->id) {
347 case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
348 err = mlxsw_sp_port_attr_stp_state_set(mlxsw_sp_port, trans,
349 attr->u.stp_state);
350 break;
351 case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
352 err = mlxsw_sp_port_attr_br_flags_set(mlxsw_sp_port, trans,
353 attr->u.brport_flags);
354 break;
355 case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
356 err = mlxsw_sp_port_attr_br_ageing_set(mlxsw_sp_port, trans,
357 attr->u.ageing_time);
358 break;
359 case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
360 err = mlxsw_sp_port_attr_br_vlan_set(mlxsw_sp_port, trans,
361 attr->orig_dev,
362 attr->u.vlan_filtering);
363 break;
364 default:
365 err = -EOPNOTSUPP;
366 break;
367 }
368
369 return err;
370 }
371
372 static int mlxsw_sp_port_pvid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
373 {
374 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
375 char spvid_pl[MLXSW_REG_SPVID_LEN];
376
377 mlxsw_reg_spvid_pack(spvid_pl, mlxsw_sp_port->local_port, vid);
378 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvid), spvid_pl);
379 }
380
381 static int mlxsw_sp_fid_create(struct mlxsw_sp *mlxsw_sp, u16 fid)
382 {
383 char sfmr_pl[MLXSW_REG_SFMR_LEN];
384 int err;
385
386 mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, fid);
387 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
388
389 if (err)
390 return err;
391
392 set_bit(fid, mlxsw_sp->active_fids);
393 return 0;
394 }
395
396 static void mlxsw_sp_fid_destroy(struct mlxsw_sp *mlxsw_sp, u16 fid)
397 {
398 char sfmr_pl[MLXSW_REG_SFMR_LEN];
399
400 clear_bit(fid, mlxsw_sp->active_fids);
401
402 mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID,
403 fid, fid);
404 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
405 }
406
407 static int mlxsw_sp_port_fid_map(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
408 {
409 enum mlxsw_reg_svfa_mt mt;
410
411 if (!list_empty(&mlxsw_sp_port->vports_list))
412 mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
413 else
414 mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
415
416 return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, fid, fid);
417 }
418
419 static int mlxsw_sp_port_fid_unmap(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
420 {
421 enum mlxsw_reg_svfa_mt mt;
422
423 if (list_empty(&mlxsw_sp_port->vports_list))
424 return 0;
425
426 mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
427 return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, fid, fid);
428 }
429
430 static int mlxsw_sp_port_add_vids(struct net_device *dev, u16 vid_begin,
431 u16 vid_end)
432 {
433 u16 vid;
434 int err;
435
436 for (vid = vid_begin; vid <= vid_end; vid++) {
437 err = mlxsw_sp_port_add_vid(dev, 0, vid);
438 if (err)
439 goto err_port_add_vid;
440 }
441 return 0;
442
443 err_port_add_vid:
444 for (vid--; vid >= vid_begin; vid--)
445 mlxsw_sp_port_kill_vid(dev, 0, vid);
446 return err;
447 }
448
449 static int __mlxsw_sp_port_vlans_set(struct mlxsw_sp_port *mlxsw_sp_port,
450 u16 vid_begin, u16 vid_end, bool is_member,
451 bool untagged)
452 {
453 u16 vid, vid_e;
454 int err;
455
456 for (vid = vid_begin; vid <= vid_end;
457 vid += MLXSW_REG_SPVM_REC_MAX_COUNT) {
458 vid_e = min((u16) (vid + MLXSW_REG_SPVM_REC_MAX_COUNT - 1),
459 vid_end);
460
461 err = mlxsw_sp_port_vlan_set(mlxsw_sp_port, vid, vid_e,
462 is_member, untagged);
463 if (err)
464 return err;
465 }
466
467 return 0;
468 }
469
470 static int __mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
471 u16 vid_begin, u16 vid_end,
472 bool flag_untagged, bool flag_pvid)
473 {
474 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
475 struct net_device *dev = mlxsw_sp_port->dev;
476 u16 vid, last_visited_vid, old_pvid;
477 enum mlxsw_reg_svfa_mt mt;
478 int err;
479
480 /* In case this is invoked with BRIDGE_FLAGS_SELF and port is
481 * not bridged, then packets ingressing through the port with
482 * the specified VIDs will be directed to CPU.
483 */
484 if (!mlxsw_sp_port->bridged)
485 return mlxsw_sp_port_add_vids(dev, vid_begin, vid_end);
486
487 for (vid = vid_begin; vid <= vid_end; vid++) {
488 if (!test_bit(vid, mlxsw_sp->active_fids)) {
489 err = mlxsw_sp_fid_create(mlxsw_sp, vid);
490 if (err) {
491 netdev_err(dev, "Failed to create FID=%d\n",
492 vid);
493 return err;
494 }
495
496 /* When creating a FID, we set a VID to FID mapping
497 * regardless of the port's mode.
498 */
499 mt = MLXSW_REG_SVFA_MT_VID_TO_FID;
500 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt,
501 true, vid, vid);
502 if (err) {
503 netdev_err(dev, "Failed to create FID=VID=%d mapping\n",
504 vid);
505 goto err_port_vid_to_fid_set;
506 }
507 }
508 }
509
510 /* Set FID mapping according to port's mode */
511 for (vid = vid_begin; vid <= vid_end; vid++) {
512 err = mlxsw_sp_port_fid_map(mlxsw_sp_port, vid);
513 if (err) {
514 netdev_err(dev, "Failed to map FID=%d", vid);
515 last_visited_vid = --vid;
516 goto err_port_fid_map;
517 }
518 }
519
520 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
521 true, false);
522 if (err) {
523 netdev_err(dev, "Failed to configure flooding\n");
524 goto err_port_flood_set;
525 }
526
527 err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
528 true, flag_untagged);
529 if (err) {
530 netdev_err(dev, "Unable to add VIDs %d-%d\n", vid_begin,
531 vid_end);
532 goto err_port_vlans_set;
533 }
534
535 old_pvid = mlxsw_sp_port->pvid;
536 if (flag_pvid && old_pvid != vid_begin) {
537 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, vid_begin);
538 if (err) {
539 netdev_err(dev, "Unable to add PVID %d\n", vid_begin);
540 goto err_port_pvid_set;
541 }
542 mlxsw_sp_port->pvid = vid_begin;
543 }
544
545 /* Changing activity bits only if HW operation succeded */
546 for (vid = vid_begin; vid <= vid_end; vid++) {
547 set_bit(vid, mlxsw_sp_port->active_vlans);
548 if (flag_untagged)
549 set_bit(vid, mlxsw_sp_port->untagged_vlans);
550 else
551 clear_bit(vid, mlxsw_sp_port->untagged_vlans);
552 }
553
554 /* STP state change must be done after we set active VLANs */
555 err = mlxsw_sp_port_stp_state_set(mlxsw_sp_port,
556 mlxsw_sp_port->stp_state);
557 if (err) {
558 netdev_err(dev, "Failed to set STP state\n");
559 goto err_port_stp_state_set;
560 }
561
562 return 0;
563
564 err_port_vid_to_fid_set:
565 mlxsw_sp_fid_destroy(mlxsw_sp, vid);
566 return err;
567
568 err_port_stp_state_set:
569 for (vid = vid_begin; vid <= vid_end; vid++)
570 clear_bit(vid, mlxsw_sp_port->active_vlans);
571 if (old_pvid != mlxsw_sp_port->pvid)
572 mlxsw_sp_port_pvid_set(mlxsw_sp_port, old_pvid);
573 err_port_pvid_set:
574 __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end, false,
575 false);
576 err_port_vlans_set:
577 __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end, false,
578 false);
579 err_port_flood_set:
580 last_visited_vid = vid_end;
581 err_port_fid_map:
582 for (vid = last_visited_vid; vid >= vid_begin; vid--)
583 mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
584 return err;
585 }
586
587 static int mlxsw_sp_port_vlans_add(struct mlxsw_sp_port *mlxsw_sp_port,
588 const struct switchdev_obj_port_vlan *vlan,
589 struct switchdev_trans *trans)
590 {
591 bool flag_untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
592 bool flag_pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
593
594 if (switchdev_trans_ph_prepare(trans))
595 return 0;
596
597 return __mlxsw_sp_port_vlans_add(mlxsw_sp_port,
598 vlan->vid_begin, vlan->vid_end,
599 flag_untagged, flag_pvid);
600 }
601
602 static enum mlxsw_reg_sfd_rec_policy mlxsw_sp_sfd_rec_policy(bool dynamic)
603 {
604 return dynamic ? MLXSW_REG_SFD_REC_POLICY_DYNAMIC_ENTRY_INGRESS :
605 MLXSW_REG_SFD_REC_POLICY_STATIC_ENTRY;
606 }
607
608 static enum mlxsw_reg_sfd_op mlxsw_sp_sfd_op(bool adding)
609 {
610 return adding ? MLXSW_REG_SFD_OP_WRITE_EDIT :
611 MLXSW_REG_SFD_OP_WRITE_REMOVE;
612 }
613
614 static int mlxsw_sp_port_fdb_uc_op(struct mlxsw_sp *mlxsw_sp, u8 local_port,
615 const char *mac, u16 fid, bool adding,
616 bool dynamic)
617 {
618 char *sfd_pl;
619 int err;
620
621 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
622 if (!sfd_pl)
623 return -ENOMEM;
624
625 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
626 mlxsw_reg_sfd_uc_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
627 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
628 local_port);
629 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
630 kfree(sfd_pl);
631
632 return err;
633 }
634
635 static int mlxsw_sp_port_fdb_uc_lag_op(struct mlxsw_sp *mlxsw_sp, u16 lag_id,
636 const char *mac, u16 fid, u16 lag_vid,
637 bool adding, bool dynamic)
638 {
639 char *sfd_pl;
640 int err;
641
642 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
643 if (!sfd_pl)
644 return -ENOMEM;
645
646 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
647 mlxsw_reg_sfd_uc_lag_pack(sfd_pl, 0, mlxsw_sp_sfd_rec_policy(dynamic),
648 mac, fid, MLXSW_REG_SFD_REC_ACTION_NOP,
649 lag_vid, lag_id);
650 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
651 kfree(sfd_pl);
652
653 return err;
654 }
655
656 static int
657 mlxsw_sp_port_fdb_static_add(struct mlxsw_sp_port *mlxsw_sp_port,
658 const struct switchdev_obj_port_fdb *fdb,
659 struct switchdev_trans *trans)
660 {
661 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
662 u16 lag_vid = 0;
663
664 if (switchdev_trans_ph_prepare(trans))
665 return 0;
666
667 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
668 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
669 }
670
671 if (!mlxsw_sp_port->lagged)
672 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
673 mlxsw_sp_port->local_port,
674 fdb->addr, fid, true, false);
675 else
676 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
677 mlxsw_sp_port->lag_id,
678 fdb->addr, fid, lag_vid,
679 true, false);
680 }
681
682 static int mlxsw_sp_port_mdb_op(struct mlxsw_sp *mlxsw_sp, const char *addr,
683 u16 fid, u16 mid, bool adding)
684 {
685 char *sfd_pl;
686 int err;
687
688 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
689 if (!sfd_pl)
690 return -ENOMEM;
691
692 mlxsw_reg_sfd_pack(sfd_pl, mlxsw_sp_sfd_op(adding), 0);
693 mlxsw_reg_sfd_mc_pack(sfd_pl, 0, addr, fid,
694 MLXSW_REG_SFD_REC_ACTION_NOP, mid);
695 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
696 kfree(sfd_pl);
697 return err;
698 }
699
700 static int mlxsw_sp_port_smid_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mid,
701 bool add, bool clear_all_ports)
702 {
703 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
704 char *smid_pl;
705 int err, i;
706
707 smid_pl = kmalloc(MLXSW_REG_SMID_LEN, GFP_KERNEL);
708 if (!smid_pl)
709 return -ENOMEM;
710
711 mlxsw_reg_smid_pack(smid_pl, mid, mlxsw_sp_port->local_port, add);
712 if (clear_all_ports) {
713 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
714 if (mlxsw_sp->ports[i])
715 mlxsw_reg_smid_port_mask_set(smid_pl, i, 1);
716 }
717 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(smid), smid_pl);
718 kfree(smid_pl);
719 return err;
720 }
721
722 static struct mlxsw_sp_mid *__mlxsw_sp_mc_get(struct mlxsw_sp *mlxsw_sp,
723 const unsigned char *addr,
724 u16 vid)
725 {
726 struct mlxsw_sp_mid *mid;
727
728 list_for_each_entry(mid, &mlxsw_sp->br_mids.list, list) {
729 if (ether_addr_equal(mid->addr, addr) && mid->vid == vid)
730 return mid;
731 }
732 return NULL;
733 }
734
735 static struct mlxsw_sp_mid *__mlxsw_sp_mc_alloc(struct mlxsw_sp *mlxsw_sp,
736 const unsigned char *addr,
737 u16 vid)
738 {
739 struct mlxsw_sp_mid *mid;
740 u16 mid_idx;
741
742 mid_idx = find_first_zero_bit(mlxsw_sp->br_mids.mapped,
743 MLXSW_SP_MID_MAX);
744 if (mid_idx == MLXSW_SP_MID_MAX)
745 return NULL;
746
747 mid = kzalloc(sizeof(*mid), GFP_KERNEL);
748 if (!mid)
749 return NULL;
750
751 set_bit(mid_idx, mlxsw_sp->br_mids.mapped);
752 ether_addr_copy(mid->addr, addr);
753 mid->vid = vid;
754 mid->mid = mid_idx;
755 mid->ref_count = 0;
756 list_add_tail(&mid->list, &mlxsw_sp->br_mids.list);
757
758 return mid;
759 }
760
761 static int __mlxsw_sp_mc_dec_ref(struct mlxsw_sp *mlxsw_sp,
762 struct mlxsw_sp_mid *mid)
763 {
764 if (--mid->ref_count == 0) {
765 list_del(&mid->list);
766 clear_bit(mid->mid, mlxsw_sp->br_mids.mapped);
767 kfree(mid);
768 return 1;
769 }
770 return 0;
771 }
772
773 static int mlxsw_sp_port_mdb_add(struct mlxsw_sp_port *mlxsw_sp_port,
774 const struct switchdev_obj_port_mdb *mdb,
775 struct switchdev_trans *trans)
776 {
777 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
778 struct net_device *dev = mlxsw_sp_port->dev;
779 struct mlxsw_sp_mid *mid;
780 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
781 int err = 0;
782
783 if (switchdev_trans_ph_prepare(trans))
784 return 0;
785
786 mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, mdb->vid);
787 if (!mid) {
788 mid = __mlxsw_sp_mc_alloc(mlxsw_sp, mdb->addr, mdb->vid);
789 if (!mid) {
790 netdev_err(dev, "Unable to allocate MC group\n");
791 return -ENOMEM;
792 }
793 }
794 mid->ref_count++;
795
796 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, true,
797 mid->ref_count == 1);
798 if (err) {
799 netdev_err(dev, "Unable to set SMID\n");
800 goto err_out;
801 }
802
803 if (mid->ref_count == 1) {
804 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid->mid,
805 true);
806 if (err) {
807 netdev_err(dev, "Unable to set MC SFD\n");
808 goto err_out;
809 }
810 }
811
812 return 0;
813
814 err_out:
815 __mlxsw_sp_mc_dec_ref(mlxsw_sp, mid);
816 return err;
817 }
818
819 static int mlxsw_sp_port_obj_add(struct net_device *dev,
820 const struct switchdev_obj *obj,
821 struct switchdev_trans *trans)
822 {
823 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
824 int err = 0;
825
826 mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
827 if (!mlxsw_sp_port)
828 return -EINVAL;
829
830 switch (obj->id) {
831 case SWITCHDEV_OBJ_ID_PORT_VLAN:
832 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
833 return 0;
834
835 err = mlxsw_sp_port_vlans_add(mlxsw_sp_port,
836 SWITCHDEV_OBJ_PORT_VLAN(obj),
837 trans);
838 break;
839 case SWITCHDEV_OBJ_ID_PORT_FDB:
840 err = mlxsw_sp_port_fdb_static_add(mlxsw_sp_port,
841 SWITCHDEV_OBJ_PORT_FDB(obj),
842 trans);
843 break;
844 case SWITCHDEV_OBJ_ID_PORT_MDB:
845 err = mlxsw_sp_port_mdb_add(mlxsw_sp_port,
846 SWITCHDEV_OBJ_PORT_MDB(obj),
847 trans);
848 break;
849 default:
850 err = -EOPNOTSUPP;
851 break;
852 }
853
854 return err;
855 }
856
857 static int mlxsw_sp_port_kill_vids(struct net_device *dev, u16 vid_begin,
858 u16 vid_end)
859 {
860 u16 vid;
861 int err;
862
863 for (vid = vid_begin; vid <= vid_end; vid++) {
864 err = mlxsw_sp_port_kill_vid(dev, 0, vid);
865 if (err)
866 return err;
867 }
868
869 return 0;
870 }
871
872 static int __mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
873 u16 vid_begin, u16 vid_end, bool init)
874 {
875 struct net_device *dev = mlxsw_sp_port->dev;
876 u16 vid, pvid;
877 int err;
878
879 /* In case this is invoked with BRIDGE_FLAGS_SELF and port is
880 * not bridged, then prevent packets ingressing through the
881 * port with the specified VIDs from being trapped to CPU.
882 */
883 if (!init && !mlxsw_sp_port->bridged)
884 return mlxsw_sp_port_kill_vids(dev, vid_begin, vid_end);
885
886 err = __mlxsw_sp_port_vlans_set(mlxsw_sp_port, vid_begin, vid_end,
887 false, false);
888 if (err) {
889 netdev_err(dev, "Unable to del VIDs %d-%d\n", vid_begin,
890 vid_end);
891 return err;
892 }
893
894 pvid = mlxsw_sp_port->pvid;
895 if (pvid >= vid_begin && pvid <= vid_end && pvid != 1) {
896 /* Default VLAN is always 1 */
897 err = mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
898 if (err) {
899 netdev_err(dev, "Unable to del PVID %d\n", pvid);
900 return err;
901 }
902 mlxsw_sp_port->pvid = 1;
903 }
904
905 if (init)
906 goto out;
907
908 err = __mlxsw_sp_port_flood_set(mlxsw_sp_port, vid_begin, vid_end,
909 false, false);
910 if (err) {
911 netdev_err(dev, "Failed to clear flooding\n");
912 return err;
913 }
914
915 for (vid = vid_begin; vid <= vid_end; vid++) {
916 /* Remove FID mapping in case of Virtual mode */
917 err = mlxsw_sp_port_fid_unmap(mlxsw_sp_port, vid);
918 if (err) {
919 netdev_err(dev, "Failed to unmap FID=%d", vid);
920 return err;
921 }
922 }
923
924 out:
925 /* Changing activity bits only if HW operation succeded */
926 for (vid = vid_begin; vid <= vid_end; vid++)
927 clear_bit(vid, mlxsw_sp_port->active_vlans);
928
929 return 0;
930 }
931
932 static int mlxsw_sp_port_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port,
933 const struct switchdev_obj_port_vlan *vlan)
934 {
935 return __mlxsw_sp_port_vlans_del(mlxsw_sp_port,
936 vlan->vid_begin, vlan->vid_end, false);
937 }
938
939 void mlxsw_sp_port_active_vlans_del(struct mlxsw_sp_port *mlxsw_sp_port)
940 {
941 u16 vid;
942
943 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID)
944 __mlxsw_sp_port_vlans_del(mlxsw_sp_port, vid, vid, false);
945 }
946
947 static int
948 mlxsw_sp_port_fdb_static_del(struct mlxsw_sp_port *mlxsw_sp_port,
949 const struct switchdev_obj_port_fdb *fdb)
950 {
951 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, fdb->vid);
952 u16 lag_vid = 0;
953
954 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
955 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
956 }
957
958 if (!mlxsw_sp_port->lagged)
959 return mlxsw_sp_port_fdb_uc_op(mlxsw_sp_port->mlxsw_sp,
960 mlxsw_sp_port->local_port,
961 fdb->addr, fid,
962 false, false);
963 else
964 return mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp_port->mlxsw_sp,
965 mlxsw_sp_port->lag_id,
966 fdb->addr, fid, lag_vid,
967 false, false);
968 }
969
970 static int mlxsw_sp_port_mdb_del(struct mlxsw_sp_port *mlxsw_sp_port,
971 const struct switchdev_obj_port_mdb *mdb)
972 {
973 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
974 struct net_device *dev = mlxsw_sp_port->dev;
975 struct mlxsw_sp_mid *mid;
976 u16 fid = mlxsw_sp_port_vid_to_fid_get(mlxsw_sp_port, mdb->vid);
977 u16 mid_idx;
978 int err = 0;
979
980 mid = __mlxsw_sp_mc_get(mlxsw_sp, mdb->addr, mdb->vid);
981 if (!mid) {
982 netdev_err(dev, "Unable to remove port from MC DB\n");
983 return -EINVAL;
984 }
985
986 err = mlxsw_sp_port_smid_set(mlxsw_sp_port, mid->mid, false, false);
987 if (err)
988 netdev_err(dev, "Unable to remove port from SMID\n");
989
990 mid_idx = mid->mid;
991 if (__mlxsw_sp_mc_dec_ref(mlxsw_sp, mid)) {
992 err = mlxsw_sp_port_mdb_op(mlxsw_sp, mdb->addr, fid, mid_idx,
993 false);
994 if (err)
995 netdev_err(dev, "Unable to remove MC SFD\n");
996 }
997
998 return err;
999 }
1000
1001 static int mlxsw_sp_port_obj_del(struct net_device *dev,
1002 const struct switchdev_obj *obj)
1003 {
1004 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1005 int err = 0;
1006
1007 mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1008 if (!mlxsw_sp_port)
1009 return -EINVAL;
1010
1011 switch (obj->id) {
1012 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1013 if (mlxsw_sp_port_is_vport(mlxsw_sp_port))
1014 return 0;
1015
1016 err = mlxsw_sp_port_vlans_del(mlxsw_sp_port,
1017 SWITCHDEV_OBJ_PORT_VLAN(obj));
1018 break;
1019 case SWITCHDEV_OBJ_ID_PORT_FDB:
1020 err = mlxsw_sp_port_fdb_static_del(mlxsw_sp_port,
1021 SWITCHDEV_OBJ_PORT_FDB(obj));
1022 break;
1023 case SWITCHDEV_OBJ_ID_PORT_MDB:
1024 err = mlxsw_sp_port_mdb_del(mlxsw_sp_port,
1025 SWITCHDEV_OBJ_PORT_MDB(obj));
1026 break;
1027 default:
1028 err = -EOPNOTSUPP;
1029 break;
1030 }
1031
1032 return err;
1033 }
1034
1035 static struct mlxsw_sp_port *mlxsw_sp_lag_rep_port(struct mlxsw_sp *mlxsw_sp,
1036 u16 lag_id)
1037 {
1038 struct mlxsw_sp_port *mlxsw_sp_port;
1039 int i;
1040
1041 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
1042 mlxsw_sp_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
1043 if (mlxsw_sp_port)
1044 return mlxsw_sp_port;
1045 }
1046 return NULL;
1047 }
1048
1049 static int mlxsw_sp_port_fdb_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1050 struct switchdev_obj_port_fdb *fdb,
1051 switchdev_obj_dump_cb_t *cb)
1052 {
1053 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1054 u16 vport_fid = 0;
1055 char *sfd_pl;
1056 char mac[ETH_ALEN];
1057 u16 fid;
1058 u8 local_port;
1059 u16 lag_id;
1060 u8 num_rec;
1061 int stored_err = 0;
1062 int i;
1063 int err;
1064
1065 sfd_pl = kmalloc(MLXSW_REG_SFD_LEN, GFP_KERNEL);
1066 if (!sfd_pl)
1067 return -ENOMEM;
1068
1069 mutex_lock(&mlxsw_sp_port->mlxsw_sp->fdb_lock);
1070 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1071 u16 tmp;
1072
1073 tmp = mlxsw_sp_vport_vfid_get(mlxsw_sp_port);
1074 vport_fid = mlxsw_sp_vfid_to_fid(tmp);
1075 }
1076
1077 mlxsw_reg_sfd_pack(sfd_pl, MLXSW_REG_SFD_OP_QUERY_DUMP, 0);
1078 do {
1079 mlxsw_reg_sfd_num_rec_set(sfd_pl, MLXSW_REG_SFD_REC_MAX_COUNT);
1080 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfd), sfd_pl);
1081 if (err)
1082 goto out;
1083
1084 num_rec = mlxsw_reg_sfd_num_rec_get(sfd_pl);
1085
1086 /* Even in case of error, we have to run the dump to the end
1087 * so the session in firmware is finished.
1088 */
1089 if (stored_err)
1090 continue;
1091
1092 for (i = 0; i < num_rec; i++) {
1093 switch (mlxsw_reg_sfd_rec_type_get(sfd_pl, i)) {
1094 case MLXSW_REG_SFD_REC_TYPE_UNICAST:
1095 mlxsw_reg_sfd_uc_unpack(sfd_pl, i, mac, &fid,
1096 &local_port);
1097 if (local_port == mlxsw_sp_port->local_port) {
1098 if (vport_fid && vport_fid == fid)
1099 fdb->vid = 0;
1100 else if (!vport_fid &&
1101 !mlxsw_sp_fid_is_vfid(fid))
1102 fdb->vid = fid;
1103 else
1104 continue;
1105 ether_addr_copy(fdb->addr, mac);
1106 fdb->ndm_state = NUD_REACHABLE;
1107 err = cb(&fdb->obj);
1108 if (err)
1109 stored_err = err;
1110 }
1111 break;
1112 case MLXSW_REG_SFD_REC_TYPE_UNICAST_LAG:
1113 mlxsw_reg_sfd_uc_lag_unpack(sfd_pl, i,
1114 mac, &fid, &lag_id);
1115 if (mlxsw_sp_port ==
1116 mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id)) {
1117 if (vport_fid && vport_fid == fid)
1118 fdb->vid = 0;
1119 else if (!vport_fid &&
1120 !mlxsw_sp_fid_is_vfid(fid))
1121 fdb->vid = fid;
1122 else
1123 continue;
1124 ether_addr_copy(fdb->addr, mac);
1125 fdb->ndm_state = NUD_REACHABLE;
1126 err = cb(&fdb->obj);
1127 if (err)
1128 stored_err = err;
1129 }
1130 break;
1131 }
1132 }
1133 } while (num_rec == MLXSW_REG_SFD_REC_MAX_COUNT);
1134
1135 out:
1136 mutex_unlock(&mlxsw_sp_port->mlxsw_sp->fdb_lock);
1137 kfree(sfd_pl);
1138 return stored_err ? stored_err : err;
1139 }
1140
1141 static int mlxsw_sp_port_vlan_dump(struct mlxsw_sp_port *mlxsw_sp_port,
1142 struct switchdev_obj_port_vlan *vlan,
1143 switchdev_obj_dump_cb_t *cb)
1144 {
1145 u16 vid;
1146 int err = 0;
1147
1148 if (mlxsw_sp_port_is_vport(mlxsw_sp_port)) {
1149 vlan->flags = 0;
1150 vlan->vid_begin = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1151 vlan->vid_end = mlxsw_sp_vport_vid_get(mlxsw_sp_port);
1152 return cb(&vlan->obj);
1153 }
1154
1155 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
1156 vlan->flags = 0;
1157 if (vid == mlxsw_sp_port->pvid)
1158 vlan->flags |= BRIDGE_VLAN_INFO_PVID;
1159 if (test_bit(vid, mlxsw_sp_port->untagged_vlans))
1160 vlan->flags |= BRIDGE_VLAN_INFO_UNTAGGED;
1161 vlan->vid_begin = vid;
1162 vlan->vid_end = vid;
1163 err = cb(&vlan->obj);
1164 if (err)
1165 break;
1166 }
1167 return err;
1168 }
1169
1170 static int mlxsw_sp_port_obj_dump(struct net_device *dev,
1171 struct switchdev_obj *obj,
1172 switchdev_obj_dump_cb_t *cb)
1173 {
1174 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1175 int err = 0;
1176
1177 mlxsw_sp_port = mlxsw_sp_port_orig_get(obj->orig_dev, mlxsw_sp_port);
1178 if (!mlxsw_sp_port)
1179 return -EINVAL;
1180
1181 switch (obj->id) {
1182 case SWITCHDEV_OBJ_ID_PORT_VLAN:
1183 err = mlxsw_sp_port_vlan_dump(mlxsw_sp_port,
1184 SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
1185 break;
1186 case SWITCHDEV_OBJ_ID_PORT_FDB:
1187 err = mlxsw_sp_port_fdb_dump(mlxsw_sp_port,
1188 SWITCHDEV_OBJ_PORT_FDB(obj), cb);
1189 break;
1190 default:
1191 err = -EOPNOTSUPP;
1192 break;
1193 }
1194
1195 return err;
1196 }
1197
1198 static const struct switchdev_ops mlxsw_sp_port_switchdev_ops = {
1199 .switchdev_port_attr_get = mlxsw_sp_port_attr_get,
1200 .switchdev_port_attr_set = mlxsw_sp_port_attr_set,
1201 .switchdev_port_obj_add = mlxsw_sp_port_obj_add,
1202 .switchdev_port_obj_del = mlxsw_sp_port_obj_del,
1203 .switchdev_port_obj_dump = mlxsw_sp_port_obj_dump,
1204 };
1205
1206 static void mlxsw_sp_fdb_call_notifiers(bool learning_sync, bool adding,
1207 char *mac, u16 vid,
1208 struct net_device *dev)
1209 {
1210 struct switchdev_notifier_fdb_info info;
1211 unsigned long notifier_type;
1212
1213 if (learning_sync) {
1214 info.addr = mac;
1215 info.vid = vid;
1216 notifier_type = adding ? SWITCHDEV_FDB_ADD : SWITCHDEV_FDB_DEL;
1217 call_switchdev_notifiers(notifier_type, dev, &info.info);
1218 }
1219 }
1220
1221 static void mlxsw_sp_fdb_notify_mac_process(struct mlxsw_sp *mlxsw_sp,
1222 char *sfn_pl, int rec_index,
1223 bool adding)
1224 {
1225 struct mlxsw_sp_port *mlxsw_sp_port;
1226 char mac[ETH_ALEN];
1227 u8 local_port;
1228 u16 vid, fid;
1229 bool do_notification = true;
1230 int err;
1231
1232 mlxsw_reg_sfn_mac_unpack(sfn_pl, rec_index, mac, &fid, &local_port);
1233 mlxsw_sp_port = mlxsw_sp->ports[local_port];
1234 if (!mlxsw_sp_port) {
1235 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Incorrect local port in FDB notification\n");
1236 goto just_remove;
1237 }
1238
1239 if (mlxsw_sp_fid_is_vfid(fid)) {
1240 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
1241 struct mlxsw_sp_port *mlxsw_sp_vport;
1242
1243 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port,
1244 vfid);
1245 if (!mlxsw_sp_vport) {
1246 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1247 goto just_remove;
1248 }
1249 vid = 0;
1250 /* Override the physical port with the vPort. */
1251 mlxsw_sp_port = mlxsw_sp_vport;
1252 } else {
1253 vid = fid;
1254 }
1255
1256 adding = adding && mlxsw_sp_port->learning;
1257
1258 do_fdb_op:
1259 err = mlxsw_sp_port_fdb_uc_op(mlxsw_sp, local_port, mac, fid,
1260 adding, true);
1261 if (err) {
1262 if (net_ratelimit())
1263 netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1264 return;
1265 }
1266
1267 if (!do_notification)
1268 return;
1269 mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync,
1270 adding, mac, vid, mlxsw_sp_port->dev);
1271 return;
1272
1273 just_remove:
1274 adding = false;
1275 do_notification = false;
1276 goto do_fdb_op;
1277 }
1278
1279 static void mlxsw_sp_fdb_notify_mac_lag_process(struct mlxsw_sp *mlxsw_sp,
1280 char *sfn_pl, int rec_index,
1281 bool adding)
1282 {
1283 struct mlxsw_sp_port *mlxsw_sp_port;
1284 char mac[ETH_ALEN];
1285 u16 lag_vid = 0;
1286 u16 lag_id;
1287 u16 vid, fid;
1288 bool do_notification = true;
1289 int err;
1290
1291 mlxsw_reg_sfn_mac_lag_unpack(sfn_pl, rec_index, mac, &fid, &lag_id);
1292 mlxsw_sp_port = mlxsw_sp_lag_rep_port(mlxsw_sp, lag_id);
1293 if (!mlxsw_sp_port) {
1294 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Cannot find port representor for LAG\n");
1295 goto just_remove;
1296 }
1297
1298 if (mlxsw_sp_fid_is_vfid(fid)) {
1299 u16 vfid = mlxsw_sp_fid_to_vfid(fid);
1300 struct mlxsw_sp_port *mlxsw_sp_vport;
1301
1302 mlxsw_sp_vport = mlxsw_sp_port_vport_find_by_vfid(mlxsw_sp_port,
1303 vfid);
1304 if (!mlxsw_sp_vport) {
1305 netdev_err(mlxsw_sp_port->dev, "Failed to find a matching vPort following FDB notification\n");
1306 goto just_remove;
1307 }
1308
1309 lag_vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
1310 vid = 0;
1311 /* Override the physical port with the vPort. */
1312 mlxsw_sp_port = mlxsw_sp_vport;
1313 } else {
1314 vid = fid;
1315 }
1316
1317 adding = adding && mlxsw_sp_port->learning;
1318
1319 do_fdb_op:
1320 err = mlxsw_sp_port_fdb_uc_lag_op(mlxsw_sp, lag_id, mac, fid, lag_vid,
1321 adding, true);
1322 if (err) {
1323 if (net_ratelimit())
1324 netdev_err(mlxsw_sp_port->dev, "Failed to set FDB entry\n");
1325 return;
1326 }
1327
1328 if (!do_notification)
1329 return;
1330 mlxsw_sp_fdb_call_notifiers(mlxsw_sp_port->learning_sync, adding, mac,
1331 vid,
1332 mlxsw_sp_lag_get(mlxsw_sp, lag_id)->dev);
1333 return;
1334
1335 just_remove:
1336 adding = false;
1337 do_notification = false;
1338 goto do_fdb_op;
1339 }
1340
1341 static void mlxsw_sp_fdb_notify_rec_process(struct mlxsw_sp *mlxsw_sp,
1342 char *sfn_pl, int rec_index)
1343 {
1344 switch (mlxsw_reg_sfn_rec_type_get(sfn_pl, rec_index)) {
1345 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC:
1346 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1347 rec_index, true);
1348 break;
1349 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC:
1350 mlxsw_sp_fdb_notify_mac_process(mlxsw_sp, sfn_pl,
1351 rec_index, false);
1352 break;
1353 case MLXSW_REG_SFN_REC_TYPE_LEARNED_MAC_LAG:
1354 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1355 rec_index, true);
1356 break;
1357 case MLXSW_REG_SFN_REC_TYPE_AGED_OUT_MAC_LAG:
1358 mlxsw_sp_fdb_notify_mac_lag_process(mlxsw_sp, sfn_pl,
1359 rec_index, false);
1360 break;
1361 }
1362 }
1363
1364 static void mlxsw_sp_fdb_notify_work_schedule(struct mlxsw_sp *mlxsw_sp)
1365 {
1366 schedule_delayed_work(&mlxsw_sp->fdb_notify.dw,
1367 msecs_to_jiffies(mlxsw_sp->fdb_notify.interval));
1368 }
1369
1370 static void mlxsw_sp_fdb_notify_work(struct work_struct *work)
1371 {
1372 struct mlxsw_sp *mlxsw_sp;
1373 char *sfn_pl;
1374 u8 num_rec;
1375 int i;
1376 int err;
1377
1378 sfn_pl = kmalloc(MLXSW_REG_SFN_LEN, GFP_KERNEL);
1379 if (!sfn_pl)
1380 return;
1381
1382 mlxsw_sp = container_of(work, struct mlxsw_sp, fdb_notify.dw.work);
1383
1384 mutex_lock(&mlxsw_sp->fdb_lock);
1385 do {
1386 mlxsw_reg_sfn_pack(sfn_pl);
1387 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(sfn), sfn_pl);
1388 if (err) {
1389 dev_err_ratelimited(mlxsw_sp->bus_info->dev, "Failed to get FDB notifications\n");
1390 break;
1391 }
1392 num_rec = mlxsw_reg_sfn_num_rec_get(sfn_pl);
1393 for (i = 0; i < num_rec; i++)
1394 mlxsw_sp_fdb_notify_rec_process(mlxsw_sp, sfn_pl, i);
1395
1396 } while (num_rec);
1397 mutex_unlock(&mlxsw_sp->fdb_lock);
1398
1399 kfree(sfn_pl);
1400 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1401 }
1402
1403 static int mlxsw_sp_fdb_init(struct mlxsw_sp *mlxsw_sp)
1404 {
1405 int err;
1406
1407 err = mlxsw_sp_ageing_set(mlxsw_sp, MLXSW_SP_DEFAULT_AGEING_TIME);
1408 if (err) {
1409 dev_err(mlxsw_sp->bus_info->dev, "Failed to set default ageing time\n");
1410 return err;
1411 }
1412 mutex_init(&mlxsw_sp->fdb_lock);
1413 INIT_DELAYED_WORK(&mlxsw_sp->fdb_notify.dw, mlxsw_sp_fdb_notify_work);
1414 mlxsw_sp->fdb_notify.interval = MLXSW_SP_DEFAULT_LEARNING_INTERVAL;
1415 mlxsw_sp_fdb_notify_work_schedule(mlxsw_sp);
1416 return 0;
1417 }
1418
1419 static void mlxsw_sp_fdb_fini(struct mlxsw_sp *mlxsw_sp)
1420 {
1421 cancel_delayed_work_sync(&mlxsw_sp->fdb_notify.dw);
1422 }
1423
1424 static void mlxsw_sp_fids_fini(struct mlxsw_sp *mlxsw_sp)
1425 {
1426 u16 fid;
1427
1428 for_each_set_bit(fid, mlxsw_sp->active_fids, VLAN_N_VID)
1429 mlxsw_sp_fid_destroy(mlxsw_sp, fid);
1430 }
1431
1432 int mlxsw_sp_switchdev_init(struct mlxsw_sp *mlxsw_sp)
1433 {
1434 return mlxsw_sp_fdb_init(mlxsw_sp);
1435 }
1436
1437 void mlxsw_sp_switchdev_fini(struct mlxsw_sp *mlxsw_sp)
1438 {
1439 mlxsw_sp_fdb_fini(mlxsw_sp);
1440 mlxsw_sp_fids_fini(mlxsw_sp);
1441 }
1442
1443 int mlxsw_sp_port_vlan_init(struct mlxsw_sp_port *mlxsw_sp_port)
1444 {
1445 struct net_device *dev = mlxsw_sp_port->dev;
1446 int err;
1447
1448 /* Allow only untagged packets to ingress and tag them internally
1449 * with VID 1.
1450 */
1451 mlxsw_sp_port->pvid = 1;
1452 err = __mlxsw_sp_port_vlans_del(mlxsw_sp_port, 0, VLAN_N_VID - 1,
1453 true);
1454 if (err) {
1455 netdev_err(dev, "Unable to init VLANs\n");
1456 return err;
1457 }
1458
1459 /* Add implicit VLAN interface in the device, so that untagged
1460 * packets will be classified to the default vFID.
1461 */
1462 err = mlxsw_sp_port_add_vid(dev, 0, 1);
1463 if (err)
1464 netdev_err(dev, "Failed to configure default vFID\n");
1465
1466 return err;
1467 }
1468
1469 void mlxsw_sp_port_switchdev_init(struct mlxsw_sp_port *mlxsw_sp_port)
1470 {
1471 mlxsw_sp_port->dev->switchdev_ops = &mlxsw_sp_port_switchdev_ops;
1472 }
1473
1474 void mlxsw_sp_port_switchdev_fini(struct mlxsw_sp_port *mlxsw_sp_port)
1475 {
1476 }
Linux kernel - Deliverables
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