]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - drivers/net/ethernet/mellanox/mlxsw/spectrum.c
projects / mirror_ubuntu-bionic-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
ASoC: sti: fix missing clk_disable_unprepare() on error in uni_player_start()
[mirror_ubuntu-bionic-kernel.git] / drivers / net / ethernet / mellanox / mlxsw / spectrum.c
1 /*
2 * drivers/net/ethernet/mellanox/mlxsw/spectrum.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/module.h>
39 #include <linux/types.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/ethtool.h>
43 #include <linux/slab.h>
44 #include <linux/device.h>
45 #include <linux/skbuff.h>
46 #include <linux/if_vlan.h>
47 #include <linux/if_bridge.h>
48 #include <linux/workqueue.h>
49 #include <linux/jiffies.h>
50 #include <linux/bitops.h>
51 #include <linux/list.h>
52 #include <linux/notifier.h>
53 #include <linux/dcbnl.h>
54 #include <linux/inetdevice.h>
55 #include <net/switchdev.h>
56 #include <generated/utsrelease.h>
57 #include <net/pkt_cls.h>
58 #include <net/tc_act/tc_mirred.h>
59
60 #include "spectrum.h"
61 #include "core.h"
62 #include "reg.h"
63 #include "port.h"
64 #include "trap.h"
65 #include "txheader.h"
66
67 static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum";
68 static const char mlxsw_sp_driver_version[] = "1.0";
69
70 /* tx_hdr_version
71 * Tx header version.
72 * Must be set to 1.
73 */
74 MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4);
75
76 /* tx_hdr_ctl
77 * Packet control type.
78 * 0 - Ethernet control (e.g. EMADs, LACP)
79 * 1 - Ethernet data
80 */
81 MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2);
82
83 /* tx_hdr_proto
84 * Packet protocol type. Must be set to 1 (Ethernet).
85 */
86 MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3);
87
88 /* tx_hdr_rx_is_router
89 * Packet is sent from the router. Valid for data packets only.
90 */
91 MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1);
92
93 /* tx_hdr_fid_valid
94 * Indicates if the 'fid' field is valid and should be used for
95 * forwarding lookup. Valid for data packets only.
96 */
97 MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1);
98
99 /* tx_hdr_swid
100 * Switch partition ID. Must be set to 0.
101 */
102 MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3);
103
104 /* tx_hdr_control_tclass
105 * Indicates if the packet should use the control TClass and not one
106 * of the data TClasses.
107 */
108 MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1);
109
110 /* tx_hdr_etclass
111 * Egress TClass to be used on the egress device on the egress port.
112 */
113 MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4);
114
115 /* tx_hdr_port_mid
116 * Destination local port for unicast packets.
117 * Destination multicast ID for multicast packets.
118 *
119 * Control packets are directed to a specific egress port, while data
120 * packets are transmitted through the CPU port (0) into the switch partition,
121 * where forwarding rules are applied.
122 */
123 MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16);
124
125 /* tx_hdr_fid
126 * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is
127 * set, otherwise calculated based on the packet's VID using VID to FID mapping.
128 * Valid for data packets only.
129 */
130 MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16);
131
132 /* tx_hdr_type
133 * 0 - Data packets
134 * 6 - Control packets
135 */
136 MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4);
137
138 static bool mlxsw_sp_port_dev_check(const struct net_device *dev);
139
140 static void mlxsw_sp_txhdr_construct(struct sk_buff *skb,
141 const struct mlxsw_tx_info *tx_info)
142 {
143 char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN);
144
145 memset(txhdr, 0, MLXSW_TXHDR_LEN);
146
147 mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1);
148 mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL);
149 mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH);
150 mlxsw_tx_hdr_swid_set(txhdr, 0);
151 mlxsw_tx_hdr_control_tclass_set(txhdr, 1);
152 mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port);
153 mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL);
154 }
155
156 static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp)
157 {
158 char spad_pl[MLXSW_REG_SPAD_LEN];
159 int err;
160
161 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl);
162 if (err)
163 return err;
164 mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac);
165 return 0;
166 }
167
168 static int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp)
169 {
170 struct mlxsw_resources *resources;
171 int i;
172
173 resources = mlxsw_core_resources_get(mlxsw_sp->core);
174 if (!resources->max_span_valid)
175 return -EIO;
176
177 mlxsw_sp->span.entries_count = resources->max_span;
178 mlxsw_sp->span.entries = kcalloc(mlxsw_sp->span.entries_count,
179 sizeof(struct mlxsw_sp_span_entry),
180 GFP_KERNEL);
181 if (!mlxsw_sp->span.entries)
182 return -ENOMEM;
183
184 for (i = 0; i < mlxsw_sp->span.entries_count; i++)
185 INIT_LIST_HEAD(&mlxsw_sp->span.entries[i].bound_ports_list);
186
187 return 0;
188 }
189
190 static void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp)
191 {
192 int i;
193
194 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
195 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
196
197 WARN_ON_ONCE(!list_empty(&curr->bound_ports_list));
198 }
199 kfree(mlxsw_sp->span.entries);
200 }
201
202 static struct mlxsw_sp_span_entry *
203 mlxsw_sp_span_entry_create(struct mlxsw_sp_port *port)
204 {
205 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
206 struct mlxsw_sp_span_entry *span_entry;
207 char mpat_pl[MLXSW_REG_MPAT_LEN];
208 u8 local_port = port->local_port;
209 int index;
210 int i;
211 int err;
212
213 /* find a free entry to use */
214 index = -1;
215 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
216 if (!mlxsw_sp->span.entries[i].used) {
217 index = i;
218 span_entry = &mlxsw_sp->span.entries[i];
219 break;
220 }
221 }
222 if (index < 0)
223 return NULL;
224
225 /* create a new port analayzer entry for local_port */
226 mlxsw_reg_mpat_pack(mpat_pl, index, local_port, true);
227 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
228 if (err)
229 return NULL;
230
231 span_entry->used = true;
232 span_entry->id = index;
233 span_entry->ref_count = 0;
234 span_entry->local_port = local_port;
235 return span_entry;
236 }
237
238 static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
239 struct mlxsw_sp_span_entry *span_entry)
240 {
241 u8 local_port = span_entry->local_port;
242 char mpat_pl[MLXSW_REG_MPAT_LEN];
243 int pa_id = span_entry->id;
244
245 mlxsw_reg_mpat_pack(mpat_pl, pa_id, local_port, false);
246 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl);
247 span_entry->used = false;
248 }
249
250 struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
251 {
252 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
253 int i;
254
255 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
256 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
257
258 if (curr->used && curr->local_port == port->local_port)
259 return curr;
260 }
261 return NULL;
262 }
263
264 struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port)
265 {
266 struct mlxsw_sp_span_entry *span_entry;
267
268 span_entry = mlxsw_sp_span_entry_find(port);
269 if (span_entry) {
270 span_entry->ref_count++;
271 return span_entry;
272 }
273
274 return mlxsw_sp_span_entry_create(port);
275 }
276
277 static int mlxsw_sp_span_entry_put(struct mlxsw_sp *mlxsw_sp,
278 struct mlxsw_sp_span_entry *span_entry)
279 {
280 if (--span_entry->ref_count == 0)
281 mlxsw_sp_span_entry_destroy(mlxsw_sp, span_entry);
282 return 0;
283 }
284
285 static bool mlxsw_sp_span_is_egress_mirror(struct mlxsw_sp_port *port)
286 {
287 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
288 struct mlxsw_sp_span_inspected_port *p;
289 int i;
290
291 for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
292 struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
293
294 list_for_each_entry(p, &curr->bound_ports_list, list)
295 if (p->local_port == port->local_port &&
296 p->type == MLXSW_SP_SPAN_EGRESS)
297 return true;
298 }
299
300 return false;
301 }
302
303 static int mlxsw_sp_span_mtu_to_buffsize(int mtu)
304 {
305 return MLXSW_SP_BYTES_TO_CELLS(mtu * 5 / 2) + 1;
306 }
307
308 static int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu)
309 {
310 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
311 char sbib_pl[MLXSW_REG_SBIB_LEN];
312 int err;
313
314 /* If port is egress mirrored, the shared buffer size should be
315 * updated according to the mtu value
316 */
317 if (mlxsw_sp_span_is_egress_mirror(port)) {
318 mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
319 mlxsw_sp_span_mtu_to_buffsize(mtu));
320 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
321 if (err) {
322 netdev_err(port->dev, "Could not update shared buffer for mirroring\n");
323 return err;
324 }
325 }
326
327 return 0;
328 }
329
330 static struct mlxsw_sp_span_inspected_port *
331 mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_port *port,
332 struct mlxsw_sp_span_entry *span_entry)
333 {
334 struct mlxsw_sp_span_inspected_port *p;
335
336 list_for_each_entry(p, &span_entry->bound_ports_list, list)
337 if (port->local_port == p->local_port)
338 return p;
339 return NULL;
340 }
341
342 static int
343 mlxsw_sp_span_inspected_port_bind(struct mlxsw_sp_port *port,
344 struct mlxsw_sp_span_entry *span_entry,
345 enum mlxsw_sp_span_type type)
346 {
347 struct mlxsw_sp_span_inspected_port *inspected_port;
348 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
349 char mpar_pl[MLXSW_REG_MPAR_LEN];
350 char sbib_pl[MLXSW_REG_SBIB_LEN];
351 int pa_id = span_entry->id;
352 int err;
353
354 /* if it is an egress SPAN, bind a shared buffer to it */
355 if (type == MLXSW_SP_SPAN_EGRESS) {
356 mlxsw_reg_sbib_pack(sbib_pl, port->local_port,
357 mlxsw_sp_span_mtu_to_buffsize(port->dev->mtu));
358 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
359 if (err) {
360 netdev_err(port->dev, "Could not create shared buffer for mirroring\n");
361 return err;
362 }
363 }
364
365 /* bind the port to the SPAN entry */
366 mlxsw_reg_mpar_pack(mpar_pl, port->local_port, type, true, pa_id);
367 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
368 if (err)
369 goto err_mpar_reg_write;
370
371 inspected_port = kzalloc(sizeof(*inspected_port), GFP_KERNEL);
372 if (!inspected_port) {
373 err = -ENOMEM;
374 goto err_inspected_port_alloc;
375 }
376 inspected_port->local_port = port->local_port;
377 inspected_port->type = type;
378 list_add_tail(&inspected_port->list, &span_entry->bound_ports_list);
379
380 return 0;
381
382 err_mpar_reg_write:
383 err_inspected_port_alloc:
384 if (type == MLXSW_SP_SPAN_EGRESS) {
385 mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
386 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
387 }
388 return err;
389 }
390
391 static void
392 mlxsw_sp_span_inspected_port_unbind(struct mlxsw_sp_port *port,
393 struct mlxsw_sp_span_entry *span_entry,
394 enum mlxsw_sp_span_type type)
395 {
396 struct mlxsw_sp_span_inspected_port *inspected_port;
397 struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
398 char mpar_pl[MLXSW_REG_MPAR_LEN];
399 char sbib_pl[MLXSW_REG_SBIB_LEN];
400 int pa_id = span_entry->id;
401
402 inspected_port = mlxsw_sp_span_entry_bound_port_find(port, span_entry);
403 if (!inspected_port)
404 return;
405
406 /* remove the inspected port */
407 mlxsw_reg_mpar_pack(mpar_pl, port->local_port, type, false, pa_id);
408 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl);
409
410 /* remove the SBIB buffer if it was egress SPAN */
411 if (type == MLXSW_SP_SPAN_EGRESS) {
412 mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0);
413 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl);
414 }
415
416 mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
417
418 list_del(&inspected_port->list);
419 kfree(inspected_port);
420 }
421
422 static int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
423 struct mlxsw_sp_port *to,
424 enum mlxsw_sp_span_type type)
425 {
426 struct mlxsw_sp *mlxsw_sp = from->mlxsw_sp;
427 struct mlxsw_sp_span_entry *span_entry;
428 int err;
429
430 span_entry = mlxsw_sp_span_entry_get(to);
431 if (!span_entry)
432 return -ENOENT;
433
434 netdev_dbg(from->dev, "Adding inspected port to SPAN entry %d\n",
435 span_entry->id);
436
437 err = mlxsw_sp_span_inspected_port_bind(from, span_entry, type);
438 if (err)
439 goto err_port_bind;
440
441 return 0;
442
443 err_port_bind:
444 mlxsw_sp_span_entry_put(mlxsw_sp, span_entry);
445 return err;
446 }
447
448 static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from,
449 struct mlxsw_sp_port *to,
450 enum mlxsw_sp_span_type type)
451 {
452 struct mlxsw_sp_span_entry *span_entry;
453
454 span_entry = mlxsw_sp_span_entry_find(to);
455 if (!span_entry) {
456 netdev_err(from->dev, "no span entry found\n");
457 return;
458 }
459
460 netdev_dbg(from->dev, "removing inspected port from SPAN entry %d\n",
461 span_entry->id);
462 mlxsw_sp_span_inspected_port_unbind(from, span_entry, type);
463 }
464
465 static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port,
466 bool is_up)
467 {
468 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
469 char paos_pl[MLXSW_REG_PAOS_LEN];
470
471 mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port,
472 is_up ? MLXSW_PORT_ADMIN_STATUS_UP :
473 MLXSW_PORT_ADMIN_STATUS_DOWN);
474 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl);
475 }
476
477 static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port,
478 unsigned char *addr)
479 {
480 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
481 char ppad_pl[MLXSW_REG_PPAD_LEN];
482
483 mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port);
484 mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr);
485 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl);
486 }
487
488 static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port)
489 {
490 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
491 unsigned char *addr = mlxsw_sp_port->dev->dev_addr;
492
493 ether_addr_copy(addr, mlxsw_sp->base_mac);
494 addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port;
495 return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr);
496 }
497
498 static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu)
499 {
500 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
501 char pmtu_pl[MLXSW_REG_PMTU_LEN];
502 int max_mtu;
503 int err;
504
505 mtu += MLXSW_TXHDR_LEN + ETH_HLEN;
506 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0);
507 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
508 if (err)
509 return err;
510 max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl);
511
512 if (mtu > max_mtu)
513 return -EINVAL;
514
515 mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu);
516 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl);
517 }
518
519 static int __mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp, u8 local_port,
520 u8 swid)
521 {
522 char pspa_pl[MLXSW_REG_PSPA_LEN];
523
524 mlxsw_reg_pspa_pack(pspa_pl, swid, local_port);
525 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl);
526 }
527
528 static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid)
529 {
530 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
531
532 return __mlxsw_sp_port_swid_set(mlxsw_sp, mlxsw_sp_port->local_port,
533 swid);
534 }
535
536 static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port,
537 bool enable)
538 {
539 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
540 char svpe_pl[MLXSW_REG_SVPE_LEN];
541
542 mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable);
543 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl);
544 }
545
546 int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port,
547 enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid,
548 u16 vid)
549 {
550 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
551 char svfa_pl[MLXSW_REG_SVFA_LEN];
552
553 mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid,
554 fid, vid);
555 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl);
556 }
557
558 static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port,
559 u16 vid, bool learn_enable)
560 {
561 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
562 char *spvmlr_pl;
563 int err;
564
565 spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL);
566 if (!spvmlr_pl)
567 return -ENOMEM;
568 mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid, vid,
569 learn_enable);
570 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl);
571 kfree(spvmlr_pl);
572 return err;
573 }
574
575 static int
576 mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port)
577 {
578 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
579 char sspr_pl[MLXSW_REG_SSPR_LEN];
580
581 mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port);
582 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl);
583 }
584
585 static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp,
586 u8 local_port, u8 *p_module,
587 u8 *p_width, u8 *p_lane)
588 {
589 char pmlp_pl[MLXSW_REG_PMLP_LEN];
590 int err;
591
592 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
593 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
594 if (err)
595 return err;
596 *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
597 *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
598 *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0);
599 return 0;
600 }
601
602 static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port,
603 u8 module, u8 width, u8 lane)
604 {
605 char pmlp_pl[MLXSW_REG_PMLP_LEN];
606 int i;
607
608 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
609 mlxsw_reg_pmlp_width_set(pmlp_pl, width);
610 for (i = 0; i < width; i++) {
611 mlxsw_reg_pmlp_module_set(pmlp_pl, i, module);
612 mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i); /* Rx & Tx */
613 }
614
615 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
616 }
617
618 static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port)
619 {
620 char pmlp_pl[MLXSW_REG_PMLP_LEN];
621
622 mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
623 mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
624 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
625 }
626
627 static int mlxsw_sp_port_open(struct net_device *dev)
628 {
629 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
630 int err;
631
632 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
633 if (err)
634 return err;
635 netif_start_queue(dev);
636 return 0;
637 }
638
639 static int mlxsw_sp_port_stop(struct net_device *dev)
640 {
641 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
642
643 netif_stop_queue(dev);
644 return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
645 }
646
647 static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb,
648 struct net_device *dev)
649 {
650 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
651 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
652 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
653 const struct mlxsw_tx_info tx_info = {
654 .local_port = mlxsw_sp_port->local_port,
655 .is_emad = false,
656 };
657 u64 len;
658 int err;
659
660 if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info))
661 return NETDEV_TX_BUSY;
662
663 if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) {
664 struct sk_buff *skb_orig = skb;
665
666 skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN);
667 if (!skb) {
668 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
669 dev_kfree_skb_any(skb_orig);
670 return NETDEV_TX_OK;
671 }
672 }
673
674 if (eth_skb_pad(skb)) {
675 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
676 return NETDEV_TX_OK;
677 }
678
679 mlxsw_sp_txhdr_construct(skb, &tx_info);
680 /* TX header is consumed by HW on the way so we shouldn't count its
681 * bytes as being sent.
682 */
683 len = skb->len - MLXSW_TXHDR_LEN;
684
685 /* Due to a race we might fail here because of a full queue. In that
686 * unlikely case we simply drop the packet.
687 */
688 err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info);
689
690 if (!err) {
691 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
692 u64_stats_update_begin(&pcpu_stats->syncp);
693 pcpu_stats->tx_packets++;
694 pcpu_stats->tx_bytes += len;
695 u64_stats_update_end(&pcpu_stats->syncp);
696 } else {
697 this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped);
698 dev_kfree_skb_any(skb);
699 }
700 return NETDEV_TX_OK;
701 }
702
703 static void mlxsw_sp_set_rx_mode(struct net_device *dev)
704 {
705 }
706
707 static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p)
708 {
709 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
710 struct sockaddr *addr = p;
711 int err;
712
713 if (!is_valid_ether_addr(addr->sa_data))
714 return -EADDRNOTAVAIL;
715
716 err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data);
717 if (err)
718 return err;
719 memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
720 return 0;
721 }
722
723 static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu,
724 bool pause_en, bool pfc_en, u16 delay)
725 {
726 u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu);
727
728 delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) :
729 MLXSW_SP_PAUSE_DELAY;
730
731 if (pause_en || pfc_en)
732 mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index,
733 pg_size + delay, pg_size);
734 else
735 mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size);
736 }
737
738 int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu,
739 u8 *prio_tc, bool pause_en,
740 struct ieee_pfc *my_pfc)
741 {
742 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
743 u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0;
744 u16 delay = !!my_pfc ? my_pfc->delay : 0;
745 char pbmc_pl[MLXSW_REG_PBMC_LEN];
746 int i, j, err;
747
748 mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0);
749 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
750 if (err)
751 return err;
752
753 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
754 bool configure = false;
755 bool pfc = false;
756
757 for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) {
758 if (prio_tc[j] == i) {
759 pfc = pfc_en & BIT(j);
760 configure = true;
761 break;
762 }
763 }
764
765 if (!configure)
766 continue;
767 mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay);
768 }
769
770 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl);
771 }
772
773 static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port,
774 int mtu, bool pause_en)
775 {
776 u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0};
777 bool dcb_en = !!mlxsw_sp_port->dcb.ets;
778 struct ieee_pfc *my_pfc;
779 u8 *prio_tc;
780
781 prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc;
782 my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL;
783
784 return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc,
785 pause_en, my_pfc);
786 }
787
788 static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu)
789 {
790 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
791 bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
792 int err;
793
794 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en);
795 if (err)
796 return err;
797 err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu);
798 if (err)
799 goto err_span_port_mtu_update;
800 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu);
801 if (err)
802 goto err_port_mtu_set;
803 dev->mtu = mtu;
804 return 0;
805
806 err_port_mtu_set:
807 mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu);
808 err_span_port_mtu_update:
809 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
810 return err;
811 }
812
813 static struct rtnl_link_stats64 *
814 mlxsw_sp_port_get_stats64(struct net_device *dev,
815 struct rtnl_link_stats64 *stats)
816 {
817 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
818 struct mlxsw_sp_port_pcpu_stats *p;
819 u64 rx_packets, rx_bytes, tx_packets, tx_bytes;
820 u32 tx_dropped = 0;
821 unsigned int start;
822 int i;
823
824 for_each_possible_cpu(i) {
825 p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i);
826 do {
827 start = u64_stats_fetch_begin_irq(&p->syncp);
828 rx_packets = p->rx_packets;
829 rx_bytes = p->rx_bytes;
830 tx_packets = p->tx_packets;
831 tx_bytes = p->tx_bytes;
832 } while (u64_stats_fetch_retry_irq(&p->syncp, start));
833
834 stats->rx_packets += rx_packets;
835 stats->rx_bytes += rx_bytes;
836 stats->tx_packets += tx_packets;
837 stats->tx_bytes += tx_bytes;
838 /* tx_dropped is u32, updated without syncp protection. */
839 tx_dropped += p->tx_dropped;
840 }
841 stats->tx_dropped = tx_dropped;
842 return stats;
843 }
844
845 int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin,
846 u16 vid_end, bool is_member, bool untagged)
847 {
848 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
849 char *spvm_pl;
850 int err;
851
852 spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL);
853 if (!spvm_pl)
854 return -ENOMEM;
855
856 mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin,
857 vid_end, is_member, untagged);
858 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl);
859 kfree(spvm_pl);
860 return err;
861 }
862
863 static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
864 {
865 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
866 u16 vid, last_visited_vid;
867 int err;
868
869 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
870 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid,
871 vid);
872 if (err) {
873 last_visited_vid = vid;
874 goto err_port_vid_to_fid_set;
875 }
876 }
877
878 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true);
879 if (err) {
880 last_visited_vid = VLAN_N_VID;
881 goto err_port_vid_to_fid_set;
882 }
883
884 return 0;
885
886 err_port_vid_to_fid_set:
887 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid)
888 mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid,
889 vid);
890 return err;
891 }
892
893 static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port)
894 {
895 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
896 u16 vid;
897 int err;
898
899 err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false);
900 if (err)
901 return err;
902
903 for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) {
904 err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false,
905 vid, vid);
906 if (err)
907 return err;
908 }
909
910 return 0;
911 }
912
913 static struct mlxsw_sp_port *
914 mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid)
915 {
916 struct mlxsw_sp_port *mlxsw_sp_vport;
917
918 mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL);
919 if (!mlxsw_sp_vport)
920 return NULL;
921
922 /* dev will be set correctly after the VLAN device is linked
923 * with the real device. In case of bridge SELF invocation, dev
924 * will remain as is.
925 */
926 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
927 mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
928 mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port;
929 mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING;
930 mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged;
931 mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id;
932 mlxsw_sp_vport->vport.vid = vid;
933
934 list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list);
935
936 return mlxsw_sp_vport;
937 }
938
939 static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport)
940 {
941 list_del(&mlxsw_sp_vport->vport.list);
942 kfree(mlxsw_sp_vport);
943 }
944
945 int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto,
946 u16 vid)
947 {
948 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
949 struct mlxsw_sp_port *mlxsw_sp_vport;
950 bool untagged = vid == 1;
951 int err;
952
953 /* VLAN 0 is added to HW filter when device goes up, but it is
954 * reserved in our case, so simply return.
955 */
956 if (!vid)
957 return 0;
958
959 if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) {
960 netdev_warn(dev, "VID=%d already configured\n", vid);
961 return 0;
962 }
963
964 mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid);
965 if (!mlxsw_sp_vport) {
966 netdev_err(dev, "Failed to create vPort for VID=%d\n", vid);
967 return -ENOMEM;
968 }
969
970 /* When adding the first VLAN interface on a bridged port we need to
971 * transition all the active 802.1Q bridge VLANs to use explicit
972 * {Port, VID} to FID mappings and set the port's mode to Virtual mode.
973 */
974 if (list_is_singular(&mlxsw_sp_port->vports_list)) {
975 err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port);
976 if (err) {
977 netdev_err(dev, "Failed to set to Virtual mode\n");
978 goto err_port_vp_mode_trans;
979 }
980 }
981
982 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
983 if (err) {
984 netdev_err(dev, "Failed to disable learning for VID=%d\n", vid);
985 goto err_port_vid_learning_set;
986 }
987
988 err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged);
989 if (err) {
990 netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
991 vid);
992 goto err_port_add_vid;
993 }
994
995 return 0;
996
997 err_port_add_vid:
998 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
999 err_port_vid_learning_set:
1000 if (list_is_singular(&mlxsw_sp_port->vports_list))
1001 mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
1002 err_port_vp_mode_trans:
1003 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
1004 return err;
1005 }
1006
1007 static int mlxsw_sp_port_kill_vid(struct net_device *dev,
1008 __be16 __always_unused proto, u16 vid)
1009 {
1010 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1011 struct mlxsw_sp_port *mlxsw_sp_vport;
1012 struct mlxsw_sp_fid *f;
1013 int err;
1014
1015 /* VLAN 0 is removed from HW filter when device goes down, but
1016 * it is reserved in our case, so simply return.
1017 */
1018 if (!vid)
1019 return 0;
1020
1021 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
1022 if (!mlxsw_sp_vport) {
1023 netdev_warn(dev, "VID=%d does not exist\n", vid);
1024 return 0;
1025 }
1026
1027 err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false);
1028 if (err) {
1029 netdev_err(dev, "Failed to set VLAN membership for VID=%d\n",
1030 vid);
1031 return err;
1032 }
1033
1034 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
1035 if (err) {
1036 netdev_err(dev, "Failed to enable learning for VID=%d\n", vid);
1037 return err;
1038 }
1039
1040 /* Drop FID reference. If this was the last reference the
1041 * resources will be freed.
1042 */
1043 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
1044 if (f && !WARN_ON(!f->leave))
1045 f->leave(mlxsw_sp_vport);
1046
1047 /* When removing the last VLAN interface on a bridged port we need to
1048 * transition all active 802.1Q bridge VLANs to use VID to FID
1049 * mappings and set port's mode to VLAN mode.
1050 */
1051 if (list_is_singular(&mlxsw_sp_port->vports_list)) {
1052 err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port);
1053 if (err) {
1054 netdev_err(dev, "Failed to set to VLAN mode\n");
1055 return err;
1056 }
1057 }
1058
1059 mlxsw_sp_port_vport_destroy(mlxsw_sp_vport);
1060
1061 return 0;
1062 }
1063
1064 static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
1065 size_t len)
1066 {
1067 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1068 u8 module = mlxsw_sp_port->mapping.module;
1069 u8 width = mlxsw_sp_port->mapping.width;
1070 u8 lane = mlxsw_sp_port->mapping.lane;
1071 int err;
1072
1073 if (!mlxsw_sp_port->split)
1074 err = snprintf(name, len, "p%d", module + 1);
1075 else
1076 err = snprintf(name, len, "p%ds%d", module + 1,
1077 lane / width);
1078
1079 if (err >= len)
1080 return -EINVAL;
1081
1082 return 0;
1083 }
1084
1085 static struct mlxsw_sp_port_mall_tc_entry *
1086 mlxsw_sp_port_mirror_entry_find(struct mlxsw_sp_port *port,
1087 unsigned long cookie) {
1088 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1089
1090 list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list)
1091 if (mall_tc_entry->cookie == cookie)
1092 return mall_tc_entry;
1093
1094 return NULL;
1095 }
1096
1097 static int
1098 mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
1099 struct tc_cls_matchall_offload *cls,
1100 const struct tc_action *a,
1101 bool ingress)
1102 {
1103 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1104 struct net *net = dev_net(mlxsw_sp_port->dev);
1105 enum mlxsw_sp_span_type span_type;
1106 struct mlxsw_sp_port *to_port;
1107 struct net_device *to_dev;
1108 int ifindex;
1109 int err;
1110
1111 ifindex = tcf_mirred_ifindex(a);
1112 to_dev = __dev_get_by_index(net, ifindex);
1113 if (!to_dev) {
1114 netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n");
1115 return -EINVAL;
1116 }
1117
1118 if (!mlxsw_sp_port_dev_check(to_dev)) {
1119 netdev_err(mlxsw_sp_port->dev, "Cannot mirror to a non-spectrum port");
1120 return -ENOTSUPP;
1121 }
1122 to_port = netdev_priv(to_dev);
1123
1124 mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL);
1125 if (!mall_tc_entry)
1126 return -ENOMEM;
1127
1128 mall_tc_entry->cookie = cls->cookie;
1129 mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR;
1130 mall_tc_entry->mirror.to_local_port = to_port->local_port;
1131 mall_tc_entry->mirror.ingress = ingress;
1132 list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list);
1133
1134 span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1135 err = mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_port, span_type);
1136 if (err)
1137 goto err_mirror_add;
1138 return 0;
1139
1140 err_mirror_add:
1141 list_del(&mall_tc_entry->list);
1142 kfree(mall_tc_entry);
1143 return err;
1144 }
1145
1146 static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1147 __be16 protocol,
1148 struct tc_cls_matchall_offload *cls,
1149 bool ingress)
1150 {
1151 const struct tc_action *a;
1152 int err;
1153
1154 if (!tc_single_action(cls->exts)) {
1155 netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n");
1156 return -ENOTSUPP;
1157 }
1158
1159 tc_for_each_action(a, cls->exts) {
1160 if (!is_tcf_mirred_mirror(a) || protocol != htons(ETH_P_ALL))
1161 return -ENOTSUPP;
1162
1163 err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, cls,
1164 a, ingress);
1165 if (err)
1166 return err;
1167 }
1168
1169 return 0;
1170 }
1171
1172 static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port,
1173 struct tc_cls_matchall_offload *cls)
1174 {
1175 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1176 struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry;
1177 enum mlxsw_sp_span_type span_type;
1178 struct mlxsw_sp_port *to_port;
1179
1180 mall_tc_entry = mlxsw_sp_port_mirror_entry_find(mlxsw_sp_port,
1181 cls->cookie);
1182 if (!mall_tc_entry) {
1183 netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n");
1184 return;
1185 }
1186
1187 switch (mall_tc_entry->type) {
1188 case MLXSW_SP_PORT_MALL_MIRROR:
1189 to_port = mlxsw_sp->ports[mall_tc_entry->mirror.to_local_port];
1190 span_type = mall_tc_entry->mirror.ingress ?
1191 MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
1192
1193 mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
1194 break;
1195 default:
1196 WARN_ON(1);
1197 }
1198
1199 list_del(&mall_tc_entry->list);
1200 kfree(mall_tc_entry);
1201 }
1202
1203 static int mlxsw_sp_setup_tc(struct net_device *dev, u32 handle,
1204 __be16 proto, struct tc_to_netdev *tc)
1205 {
1206 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1207 bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS);
1208
1209 if (tc->type == TC_SETUP_MATCHALL) {
1210 switch (tc->cls_mall->command) {
1211 case TC_CLSMATCHALL_REPLACE:
1212 return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port,
1213 proto,
1214 tc->cls_mall,
1215 ingress);
1216 case TC_CLSMATCHALL_DESTROY:
1217 mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port,
1218 tc->cls_mall);
1219 return 0;
1220 default:
1221 return -EINVAL;
1222 }
1223 }
1224
1225 return -ENOTSUPP;
1226 }
1227
1228 static const struct net_device_ops mlxsw_sp_port_netdev_ops = {
1229 .ndo_open = mlxsw_sp_port_open,
1230 .ndo_stop = mlxsw_sp_port_stop,
1231 .ndo_start_xmit = mlxsw_sp_port_xmit,
1232 .ndo_setup_tc = mlxsw_sp_setup_tc,
1233 .ndo_set_rx_mode = mlxsw_sp_set_rx_mode,
1234 .ndo_set_mac_address = mlxsw_sp_port_set_mac_address,
1235 .ndo_change_mtu = mlxsw_sp_port_change_mtu,
1236 .ndo_get_stats64 = mlxsw_sp_port_get_stats64,
1237 .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid,
1238 .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid,
1239 .ndo_neigh_construct = mlxsw_sp_router_neigh_construct,
1240 .ndo_neigh_destroy = mlxsw_sp_router_neigh_destroy,
1241 .ndo_fdb_add = switchdev_port_fdb_add,
1242 .ndo_fdb_del = switchdev_port_fdb_del,
1243 .ndo_fdb_dump = switchdev_port_fdb_dump,
1244 .ndo_bridge_setlink = switchdev_port_bridge_setlink,
1245 .ndo_bridge_getlink = switchdev_port_bridge_getlink,
1246 .ndo_bridge_dellink = switchdev_port_bridge_dellink,
1247 .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name,
1248 };
1249
1250 static void mlxsw_sp_port_get_drvinfo(struct net_device *dev,
1251 struct ethtool_drvinfo *drvinfo)
1252 {
1253 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1254 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1255
1256 strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver));
1257 strlcpy(drvinfo->version, mlxsw_sp_driver_version,
1258 sizeof(drvinfo->version));
1259 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
1260 "%d.%d.%d",
1261 mlxsw_sp->bus_info->fw_rev.major,
1262 mlxsw_sp->bus_info->fw_rev.minor,
1263 mlxsw_sp->bus_info->fw_rev.subminor);
1264 strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name,
1265 sizeof(drvinfo->bus_info));
1266 }
1267
1268 static void mlxsw_sp_port_get_pauseparam(struct net_device *dev,
1269 struct ethtool_pauseparam *pause)
1270 {
1271 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1272
1273 pause->rx_pause = mlxsw_sp_port->link.rx_pause;
1274 pause->tx_pause = mlxsw_sp_port->link.tx_pause;
1275 }
1276
1277 static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port,
1278 struct ethtool_pauseparam *pause)
1279 {
1280 char pfcc_pl[MLXSW_REG_PFCC_LEN];
1281
1282 mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port);
1283 mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause);
1284 mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause);
1285
1286 return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc),
1287 pfcc_pl);
1288 }
1289
1290 static int mlxsw_sp_port_set_pauseparam(struct net_device *dev,
1291 struct ethtool_pauseparam *pause)
1292 {
1293 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1294 bool pause_en = pause->tx_pause || pause->rx_pause;
1295 int err;
1296
1297 if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) {
1298 netdev_err(dev, "PFC already enabled on port\n");
1299 return -EINVAL;
1300 }
1301
1302 if (pause->autoneg) {
1303 netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n");
1304 return -EINVAL;
1305 }
1306
1307 err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1308 if (err) {
1309 netdev_err(dev, "Failed to configure port's headroom\n");
1310 return err;
1311 }
1312
1313 err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause);
1314 if (err) {
1315 netdev_err(dev, "Failed to set PAUSE parameters\n");
1316 goto err_port_pause_configure;
1317 }
1318
1319 mlxsw_sp_port->link.rx_pause = pause->rx_pause;
1320 mlxsw_sp_port->link.tx_pause = pause->tx_pause;
1321
1322 return 0;
1323
1324 err_port_pause_configure:
1325 pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port);
1326 mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en);
1327 return err;
1328 }
1329
1330 struct mlxsw_sp_port_hw_stats {
1331 char str[ETH_GSTRING_LEN];
1332 u64 (*getter)(char *payload);
1333 };
1334
1335 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = {
1336 {
1337 .str = "a_frames_transmitted_ok",
1338 .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get,
1339 },
1340 {
1341 .str = "a_frames_received_ok",
1342 .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get,
1343 },
1344 {
1345 .str = "a_frame_check_sequence_errors",
1346 .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get,
1347 },
1348 {
1349 .str = "a_alignment_errors",
1350 .getter = mlxsw_reg_ppcnt_a_alignment_errors_get,
1351 },
1352 {
1353 .str = "a_octets_transmitted_ok",
1354 .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get,
1355 },
1356 {
1357 .str = "a_octets_received_ok",
1358 .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get,
1359 },
1360 {
1361 .str = "a_multicast_frames_xmitted_ok",
1362 .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get,
1363 },
1364 {
1365 .str = "a_broadcast_frames_xmitted_ok",
1366 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get,
1367 },
1368 {
1369 .str = "a_multicast_frames_received_ok",
1370 .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get,
1371 },
1372 {
1373 .str = "a_broadcast_frames_received_ok",
1374 .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get,
1375 },
1376 {
1377 .str = "a_in_range_length_errors",
1378 .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get,
1379 },
1380 {
1381 .str = "a_out_of_range_length_field",
1382 .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get,
1383 },
1384 {
1385 .str = "a_frame_too_long_errors",
1386 .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get,
1387 },
1388 {
1389 .str = "a_symbol_error_during_carrier",
1390 .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get,
1391 },
1392 {
1393 .str = "a_mac_control_frames_transmitted",
1394 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get,
1395 },
1396 {
1397 .str = "a_mac_control_frames_received",
1398 .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get,
1399 },
1400 {
1401 .str = "a_unsupported_opcodes_received",
1402 .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get,
1403 },
1404 {
1405 .str = "a_pause_mac_ctrl_frames_received",
1406 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get,
1407 },
1408 {
1409 .str = "a_pause_mac_ctrl_frames_xmitted",
1410 .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get,
1411 },
1412 };
1413
1414 #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats)
1415
1416 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = {
1417 {
1418 .str = "rx_octets_prio",
1419 .getter = mlxsw_reg_ppcnt_rx_octets_get,
1420 },
1421 {
1422 .str = "rx_frames_prio",
1423 .getter = mlxsw_reg_ppcnt_rx_frames_get,
1424 },
1425 {
1426 .str = "tx_octets_prio",
1427 .getter = mlxsw_reg_ppcnt_tx_octets_get,
1428 },
1429 {
1430 .str = "tx_frames_prio",
1431 .getter = mlxsw_reg_ppcnt_tx_frames_get,
1432 },
1433 {
1434 .str = "rx_pause_prio",
1435 .getter = mlxsw_reg_ppcnt_rx_pause_get,
1436 },
1437 {
1438 .str = "rx_pause_duration_prio",
1439 .getter = mlxsw_reg_ppcnt_rx_pause_duration_get,
1440 },
1441 {
1442 .str = "tx_pause_prio",
1443 .getter = mlxsw_reg_ppcnt_tx_pause_get,
1444 },
1445 {
1446 .str = "tx_pause_duration_prio",
1447 .getter = mlxsw_reg_ppcnt_tx_pause_duration_get,
1448 },
1449 };
1450
1451 #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats)
1452
1453 static u64 mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get(char *ppcnt_pl)
1454 {
1455 u64 transmit_queue = mlxsw_reg_ppcnt_tc_transmit_queue_get(ppcnt_pl);
1456
1457 return MLXSW_SP_CELLS_TO_BYTES(transmit_queue);
1458 }
1459
1460 static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = {
1461 {
1462 .str = "tc_transmit_queue_tc",
1463 .getter = mlxsw_reg_ppcnt_tc_transmit_queue_bytes_get,
1464 },
1465 {
1466 .str = "tc_no_buffer_discard_uc_tc",
1467 .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get,
1468 },
1469 };
1470
1471 #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats)
1472
1473 #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \
1474 (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \
1475 MLXSW_SP_PORT_HW_TC_STATS_LEN) * \
1476 IEEE_8021QAZ_MAX_TCS)
1477
1478 static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio)
1479 {
1480 int i;
1481
1482 for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) {
1483 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1484 mlxsw_sp_port_hw_prio_stats[i].str, prio);
1485 *p += ETH_GSTRING_LEN;
1486 }
1487 }
1488
1489 static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc)
1490 {
1491 int i;
1492
1493 for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) {
1494 snprintf(*p, ETH_GSTRING_LEN, "%s_%d",
1495 mlxsw_sp_port_hw_tc_stats[i].str, tc);
1496 *p += ETH_GSTRING_LEN;
1497 }
1498 }
1499
1500 static void mlxsw_sp_port_get_strings(struct net_device *dev,
1501 u32 stringset, u8 *data)
1502 {
1503 u8 *p = data;
1504 int i;
1505
1506 switch (stringset) {
1507 case ETH_SS_STATS:
1508 for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) {
1509 memcpy(p, mlxsw_sp_port_hw_stats[i].str,
1510 ETH_GSTRING_LEN);
1511 p += ETH_GSTRING_LEN;
1512 }
1513
1514 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1515 mlxsw_sp_port_get_prio_strings(&p, i);
1516
1517 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
1518 mlxsw_sp_port_get_tc_strings(&p, i);
1519
1520 break;
1521 }
1522 }
1523
1524 static int mlxsw_sp_port_set_phys_id(struct net_device *dev,
1525 enum ethtool_phys_id_state state)
1526 {
1527 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1528 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1529 char mlcr_pl[MLXSW_REG_MLCR_LEN];
1530 bool active;
1531
1532 switch (state) {
1533 case ETHTOOL_ID_ACTIVE:
1534 active = true;
1535 break;
1536 case ETHTOOL_ID_INACTIVE:
1537 active = false;
1538 break;
1539 default:
1540 return -EOPNOTSUPP;
1541 }
1542
1543 mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active);
1544 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl);
1545 }
1546
1547 static int
1548 mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats,
1549 int *p_len, enum mlxsw_reg_ppcnt_grp grp)
1550 {
1551 switch (grp) {
1552 case MLXSW_REG_PPCNT_IEEE_8023_CNT:
1553 *p_hw_stats = mlxsw_sp_port_hw_stats;
1554 *p_len = MLXSW_SP_PORT_HW_STATS_LEN;
1555 break;
1556 case MLXSW_REG_PPCNT_PRIO_CNT:
1557 *p_hw_stats = mlxsw_sp_port_hw_prio_stats;
1558 *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1559 break;
1560 case MLXSW_REG_PPCNT_TC_CNT:
1561 *p_hw_stats = mlxsw_sp_port_hw_tc_stats;
1562 *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN;
1563 break;
1564 default:
1565 WARN_ON(1);
1566 return -ENOTSUPP;
1567 }
1568 return 0;
1569 }
1570
1571 static void __mlxsw_sp_port_get_stats(struct net_device *dev,
1572 enum mlxsw_reg_ppcnt_grp grp, int prio,
1573 u64 *data, int data_index)
1574 {
1575 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1576 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1577 struct mlxsw_sp_port_hw_stats *hw_stats;
1578 char ppcnt_pl[MLXSW_REG_PPCNT_LEN];
1579 int i, len;
1580 int err;
1581
1582 err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp);
1583 if (err)
1584 return;
1585 mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio);
1586 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl);
1587 for (i = 0; i < len; i++)
1588 data[data_index + i] = !err ? hw_stats[i].getter(ppcnt_pl) : 0;
1589 }
1590
1591 static void mlxsw_sp_port_get_stats(struct net_device *dev,
1592 struct ethtool_stats *stats, u64 *data)
1593 {
1594 int i, data_index = 0;
1595
1596 /* IEEE 802.3 Counters */
1597 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0,
1598 data, data_index);
1599 data_index = MLXSW_SP_PORT_HW_STATS_LEN;
1600
1601 /* Per-Priority Counters */
1602 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1603 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i,
1604 data, data_index);
1605 data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN;
1606 }
1607
1608 /* Per-TC Counters */
1609 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
1610 __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i,
1611 data, data_index);
1612 data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN;
1613 }
1614 }
1615
1616 static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset)
1617 {
1618 switch (sset) {
1619 case ETH_SS_STATS:
1620 return MLXSW_SP_PORT_ETHTOOL_STATS_LEN;
1621 default:
1622 return -EOPNOTSUPP;
1623 }
1624 }
1625
1626 struct mlxsw_sp_port_link_mode {
1627 u32 mask;
1628 u32 supported;
1629 u32 advertised;
1630 u32 speed;
1631 };
1632
1633 static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = {
1634 {
1635 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T,
1636 .supported = SUPPORTED_100baseT_Full,
1637 .advertised = ADVERTISED_100baseT_Full,
1638 .speed = 100,
1639 },
1640 {
1641 .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX,
1642 .speed = 100,
1643 },
1644 {
1645 .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII |
1646 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX,
1647 .supported = SUPPORTED_1000baseKX_Full,
1648 .advertised = ADVERTISED_1000baseKX_Full,
1649 .speed = 1000,
1650 },
1651 {
1652 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T,
1653 .supported = SUPPORTED_10000baseT_Full,
1654 .advertised = ADVERTISED_10000baseT_Full,
1655 .speed = 10000,
1656 },
1657 {
1658 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 |
1659 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4,
1660 .supported = SUPPORTED_10000baseKX4_Full,
1661 .advertised = ADVERTISED_10000baseKX4_Full,
1662 .speed = 10000,
1663 },
1664 {
1665 .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1666 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1667 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1668 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR,
1669 .supported = SUPPORTED_10000baseKR_Full,
1670 .advertised = ADVERTISED_10000baseKR_Full,
1671 .speed = 10000,
1672 },
1673 {
1674 .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2,
1675 .supported = SUPPORTED_20000baseKR2_Full,
1676 .advertised = ADVERTISED_20000baseKR2_Full,
1677 .speed = 20000,
1678 },
1679 {
1680 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4,
1681 .supported = SUPPORTED_40000baseCR4_Full,
1682 .advertised = ADVERTISED_40000baseCR4_Full,
1683 .speed = 40000,
1684 },
1685 {
1686 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4,
1687 .supported = SUPPORTED_40000baseKR4_Full,
1688 .advertised = ADVERTISED_40000baseKR4_Full,
1689 .speed = 40000,
1690 },
1691 {
1692 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4,
1693 .supported = SUPPORTED_40000baseSR4_Full,
1694 .advertised = ADVERTISED_40000baseSR4_Full,
1695 .speed = 40000,
1696 },
1697 {
1698 .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4,
1699 .supported = SUPPORTED_40000baseLR4_Full,
1700 .advertised = ADVERTISED_40000baseLR4_Full,
1701 .speed = 40000,
1702 },
1703 {
1704 .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR |
1705 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR |
1706 MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR,
1707 .speed = 25000,
1708 },
1709 {
1710 .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 |
1711 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 |
1712 MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2,
1713 .speed = 50000,
1714 },
1715 {
1716 .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4,
1717 .supported = SUPPORTED_56000baseKR4_Full,
1718 .advertised = ADVERTISED_56000baseKR4_Full,
1719 .speed = 56000,
1720 },
1721 {
1722 .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 |
1723 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1724 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1725 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4,
1726 .speed = 100000,
1727 },
1728 };
1729
1730 #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode)
1731
1732 static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto)
1733 {
1734 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1735 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1736 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1737 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1738 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1739 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1740 return SUPPORTED_FIBRE;
1741
1742 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1743 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1744 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1745 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 |
1746 MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX))
1747 return SUPPORTED_Backplane;
1748 return 0;
1749 }
1750
1751 static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto)
1752 {
1753 u32 modes = 0;
1754 int i;
1755
1756 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1757 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1758 modes |= mlxsw_sp_port_link_mode[i].supported;
1759 }
1760 return modes;
1761 }
1762
1763 static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto)
1764 {
1765 u32 modes = 0;
1766 int i;
1767
1768 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1769 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask)
1770 modes |= mlxsw_sp_port_link_mode[i].advertised;
1771 }
1772 return modes;
1773 }
1774
1775 static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto,
1776 struct ethtool_cmd *cmd)
1777 {
1778 u32 speed = SPEED_UNKNOWN;
1779 u8 duplex = DUPLEX_UNKNOWN;
1780 int i;
1781
1782 if (!carrier_ok)
1783 goto out;
1784
1785 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1786 if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) {
1787 speed = mlxsw_sp_port_link_mode[i].speed;
1788 duplex = DUPLEX_FULL;
1789 break;
1790 }
1791 }
1792 out:
1793 ethtool_cmd_speed_set(cmd, speed);
1794 cmd->duplex = duplex;
1795 }
1796
1797 static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto)
1798 {
1799 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR |
1800 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 |
1801 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 |
1802 MLXSW_REG_PTYS_ETH_SPEED_SGMII))
1803 return PORT_FIBRE;
1804
1805 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR |
1806 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 |
1807 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4))
1808 return PORT_DA;
1809
1810 if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR |
1811 MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 |
1812 MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 |
1813 MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4))
1814 return PORT_NONE;
1815
1816 return PORT_OTHER;
1817 }
1818
1819 static int mlxsw_sp_port_get_settings(struct net_device *dev,
1820 struct ethtool_cmd *cmd)
1821 {
1822 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1823 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1824 char ptys_pl[MLXSW_REG_PTYS_LEN];
1825 u32 eth_proto_cap;
1826 u32 eth_proto_admin;
1827 u32 eth_proto_oper;
1828 int err;
1829
1830 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1831 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1832 if (err) {
1833 netdev_err(dev, "Failed to get proto");
1834 return err;
1835 }
1836 mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap,
1837 &eth_proto_admin, &eth_proto_oper);
1838
1839 cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) |
1840 mlxsw_sp_from_ptys_supported_link(eth_proto_cap) |
1841 SUPPORTED_Pause | SUPPORTED_Asym_Pause |
1842 SUPPORTED_Autoneg;
1843 cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin);
1844 mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev),
1845 eth_proto_oper, cmd);
1846
1847 eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
1848 cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper);
1849 cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper);
1850
1851 cmd->transceiver = XCVR_INTERNAL;
1852 return 0;
1853 }
1854
1855 static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising)
1856 {
1857 u32 ptys_proto = 0;
1858 int i;
1859
1860 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1861 if (advertising & mlxsw_sp_port_link_mode[i].advertised)
1862 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1863 }
1864 return ptys_proto;
1865 }
1866
1867 static u32 mlxsw_sp_to_ptys_speed(u32 speed)
1868 {
1869 u32 ptys_proto = 0;
1870 int i;
1871
1872 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1873 if (speed == mlxsw_sp_port_link_mode[i].speed)
1874 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1875 }
1876 return ptys_proto;
1877 }
1878
1879 static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed)
1880 {
1881 u32 ptys_proto = 0;
1882 int i;
1883
1884 for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) {
1885 if (mlxsw_sp_port_link_mode[i].speed <= upper_speed)
1886 ptys_proto |= mlxsw_sp_port_link_mode[i].mask;
1887 }
1888 return ptys_proto;
1889 }
1890
1891 static int mlxsw_sp_port_set_settings(struct net_device *dev,
1892 struct ethtool_cmd *cmd)
1893 {
1894 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
1895 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1896 char ptys_pl[MLXSW_REG_PTYS_LEN];
1897 u32 speed;
1898 u32 eth_proto_new;
1899 u32 eth_proto_cap;
1900 u32 eth_proto_admin;
1901 int err;
1902
1903 speed = ethtool_cmd_speed(cmd);
1904
1905 eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ?
1906 mlxsw_sp_to_ptys_advert_link(cmd->advertising) :
1907 mlxsw_sp_to_ptys_speed(speed);
1908
1909 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0);
1910 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1911 if (err) {
1912 netdev_err(dev, "Failed to get proto");
1913 return err;
1914 }
1915 mlxsw_reg_ptys_unpack(ptys_pl, &eth_proto_cap, &eth_proto_admin, NULL);
1916
1917 eth_proto_new = eth_proto_new & eth_proto_cap;
1918 if (!eth_proto_new) {
1919 netdev_err(dev, "Not supported proto admin requested");
1920 return -EINVAL;
1921 }
1922 if (eth_proto_new == eth_proto_admin)
1923 return 0;
1924
1925 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new);
1926 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1927 if (err) {
1928 netdev_err(dev, "Failed to set proto admin");
1929 return err;
1930 }
1931
1932 if (!netif_running(dev))
1933 return 0;
1934
1935 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
1936 if (err) {
1937 netdev_err(dev, "Failed to set admin status");
1938 return err;
1939 }
1940
1941 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true);
1942 if (err) {
1943 netdev_err(dev, "Failed to set admin status");
1944 return err;
1945 }
1946
1947 return 0;
1948 }
1949
1950 static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = {
1951 .get_drvinfo = mlxsw_sp_port_get_drvinfo,
1952 .get_link = ethtool_op_get_link,
1953 .get_pauseparam = mlxsw_sp_port_get_pauseparam,
1954 .set_pauseparam = mlxsw_sp_port_set_pauseparam,
1955 .get_strings = mlxsw_sp_port_get_strings,
1956 .set_phys_id = mlxsw_sp_port_set_phys_id,
1957 .get_ethtool_stats = mlxsw_sp_port_get_stats,
1958 .get_sset_count = mlxsw_sp_port_get_sset_count,
1959 .get_settings = mlxsw_sp_port_get_settings,
1960 .set_settings = mlxsw_sp_port_set_settings,
1961 };
1962
1963 static int
1964 mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width)
1965 {
1966 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1967 u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width;
1968 char ptys_pl[MLXSW_REG_PTYS_LEN];
1969 u32 eth_proto_admin;
1970
1971 eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed);
1972 mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port,
1973 eth_proto_admin);
1974 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl);
1975 }
1976
1977 int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port,
1978 enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index,
1979 bool dwrr, u8 dwrr_weight)
1980 {
1981 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1982 char qeec_pl[MLXSW_REG_QEEC_LEN];
1983
1984 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
1985 next_index);
1986 mlxsw_reg_qeec_de_set(qeec_pl, true);
1987 mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr);
1988 mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight);
1989 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
1990 }
1991
1992 int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port,
1993 enum mlxsw_reg_qeec_hr hr, u8 index,
1994 u8 next_index, u32 maxrate)
1995 {
1996 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
1997 char qeec_pl[MLXSW_REG_QEEC_LEN];
1998
1999 mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index,
2000 next_index);
2001 mlxsw_reg_qeec_mase_set(qeec_pl, true);
2002 mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate);
2003 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl);
2004 }
2005
2006 int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port,
2007 u8 switch_prio, u8 tclass)
2008 {
2009 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
2010 char qtct_pl[MLXSW_REG_QTCT_LEN];
2011
2012 mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio,
2013 tclass);
2014 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl);
2015 }
2016
2017 static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port)
2018 {
2019 int err, i;
2020
2021 /* Setup the elements hierarcy, so that each TC is linked to
2022 * one subgroup, which are all member in the same group.
2023 */
2024 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2025 MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false,
2026 0);
2027 if (err)
2028 return err;
2029 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2030 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2031 MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i,
2032 0, false, 0);
2033 if (err)
2034 return err;
2035 }
2036 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2037 err = mlxsw_sp_port_ets_set(mlxsw_sp_port,
2038 MLXSW_REG_QEEC_HIERARCY_TC, i, i,
2039 false, 0);
2040 if (err)
2041 return err;
2042 }
2043
2044 /* Make sure the max shaper is disabled in all hierarcies that
2045 * support it.
2046 */
2047 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2048 MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0,
2049 MLXSW_REG_QEEC_MAS_DIS);
2050 if (err)
2051 return err;
2052 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2053 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2054 MLXSW_REG_QEEC_HIERARCY_SUBGROUP,
2055 i, 0,
2056 MLXSW_REG_QEEC_MAS_DIS);
2057 if (err)
2058 return err;
2059 }
2060 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2061 err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port,
2062 MLXSW_REG_QEEC_HIERARCY_TC,
2063 i, i,
2064 MLXSW_REG_QEEC_MAS_DIS);
2065 if (err)
2066 return err;
2067 }
2068
2069 /* Map all priorities to traffic class 0. */
2070 for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
2071 err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0);
2072 if (err)
2073 return err;
2074 }
2075
2076 return 0;
2077 }
2078
2079 static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port,
2080 bool split, u8 module, u8 width, u8 lane)
2081 {
2082 struct mlxsw_sp_port *mlxsw_sp_port;
2083 struct net_device *dev;
2084 size_t bytes;
2085 int err;
2086
2087 dev = alloc_etherdev(sizeof(struct mlxsw_sp_port));
2088 if (!dev)
2089 return -ENOMEM;
2090 mlxsw_sp_port = netdev_priv(dev);
2091 mlxsw_sp_port->dev = dev;
2092 mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
2093 mlxsw_sp_port->local_port = local_port;
2094 mlxsw_sp_port->split = split;
2095 mlxsw_sp_port->mapping.module = module;
2096 mlxsw_sp_port->mapping.width = width;
2097 mlxsw_sp_port->mapping.lane = lane;
2098 bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE);
2099 mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL);
2100 if (!mlxsw_sp_port->active_vlans) {
2101 err = -ENOMEM;
2102 goto err_port_active_vlans_alloc;
2103 }
2104 mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL);
2105 if (!mlxsw_sp_port->untagged_vlans) {
2106 err = -ENOMEM;
2107 goto err_port_untagged_vlans_alloc;
2108 }
2109 INIT_LIST_HEAD(&mlxsw_sp_port->vports_list);
2110 INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list);
2111
2112 mlxsw_sp_port->pcpu_stats =
2113 netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats);
2114 if (!mlxsw_sp_port->pcpu_stats) {
2115 err = -ENOMEM;
2116 goto err_alloc_stats;
2117 }
2118
2119 dev->netdev_ops = &mlxsw_sp_port_netdev_ops;
2120 dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops;
2121
2122 err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port);
2123 if (err) {
2124 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n",
2125 mlxsw_sp_port->local_port);
2126 goto err_dev_addr_init;
2127 }
2128
2129 netif_carrier_off(dev);
2130
2131 dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG |
2132 NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC;
2133 dev->hw_features |= NETIF_F_HW_TC;
2134
2135 /* Each packet needs to have a Tx header (metadata) on top all other
2136 * headers.
2137 */
2138 dev->hard_header_len += MLXSW_TXHDR_LEN;
2139
2140 err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port);
2141 if (err) {
2142 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n",
2143 mlxsw_sp_port->local_port);
2144 goto err_port_system_port_mapping_set;
2145 }
2146
2147 err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0);
2148 if (err) {
2149 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n",
2150 mlxsw_sp_port->local_port);
2151 goto err_port_swid_set;
2152 }
2153
2154 err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width);
2155 if (err) {
2156 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n",
2157 mlxsw_sp_port->local_port);
2158 goto err_port_speed_by_width_set;
2159 }
2160
2161 err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN);
2162 if (err) {
2163 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n",
2164 mlxsw_sp_port->local_port);
2165 goto err_port_mtu_set;
2166 }
2167
2168 err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
2169 if (err)
2170 goto err_port_admin_status_set;
2171
2172 err = mlxsw_sp_port_buffers_init(mlxsw_sp_port);
2173 if (err) {
2174 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n",
2175 mlxsw_sp_port->local_port);
2176 goto err_port_buffers_init;
2177 }
2178
2179 err = mlxsw_sp_port_ets_init(mlxsw_sp_port);
2180 if (err) {
2181 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n",
2182 mlxsw_sp_port->local_port);
2183 goto err_port_ets_init;
2184 }
2185
2186 /* ETS and buffers must be initialized before DCB. */
2187 err = mlxsw_sp_port_dcb_init(mlxsw_sp_port);
2188 if (err) {
2189 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n",
2190 mlxsw_sp_port->local_port);
2191 goto err_port_dcb_init;
2192 }
2193
2194 mlxsw_sp_port_switchdev_init(mlxsw_sp_port);
2195 err = register_netdev(dev);
2196 if (err) {
2197 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n",
2198 mlxsw_sp_port->local_port);
2199 goto err_register_netdev;
2200 }
2201
2202 err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port,
2203 mlxsw_sp_port->local_port, dev,
2204 mlxsw_sp_port->split, module);
2205 if (err) {
2206 dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n",
2207 mlxsw_sp_port->local_port);
2208 goto err_core_port_init;
2209 }
2210
2211 err = mlxsw_sp_port_vlan_init(mlxsw_sp_port);
2212 if (err)
2213 goto err_port_vlan_init;
2214
2215 mlxsw_sp->ports[local_port] = mlxsw_sp_port;
2216 return 0;
2217
2218 err_port_vlan_init:
2219 mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
2220 err_core_port_init:
2221 unregister_netdev(dev);
2222 err_register_netdev:
2223 err_port_dcb_init:
2224 err_port_ets_init:
2225 err_port_buffers_init:
2226 err_port_admin_status_set:
2227 err_port_mtu_set:
2228 err_port_speed_by_width_set:
2229 err_port_swid_set:
2230 err_port_system_port_mapping_set:
2231 err_dev_addr_init:
2232 free_percpu(mlxsw_sp_port->pcpu_stats);
2233 err_alloc_stats:
2234 kfree(mlxsw_sp_port->untagged_vlans);
2235 err_port_untagged_vlans_alloc:
2236 kfree(mlxsw_sp_port->active_vlans);
2237 err_port_active_vlans_alloc:
2238 free_netdev(dev);
2239 return err;
2240 }
2241
2242 static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
2243 {
2244 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2245
2246 if (!mlxsw_sp_port)
2247 return;
2248 mlxsw_sp->ports[local_port] = NULL;
2249 mlxsw_core_port_fini(&mlxsw_sp_port->core_port);
2250 unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */
2251 mlxsw_sp_port_dcb_fini(mlxsw_sp_port);
2252 mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1);
2253 mlxsw_sp_port_switchdev_fini(mlxsw_sp_port);
2254 mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT);
2255 mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port);
2256 free_percpu(mlxsw_sp_port->pcpu_stats);
2257 kfree(mlxsw_sp_port->untagged_vlans);
2258 kfree(mlxsw_sp_port->active_vlans);
2259 WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list));
2260 free_netdev(mlxsw_sp_port->dev);
2261 }
2262
2263 static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
2264 {
2265 int i;
2266
2267 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++)
2268 mlxsw_sp_port_remove(mlxsw_sp, i);
2269 kfree(mlxsw_sp->ports);
2270 }
2271
2272 static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
2273 {
2274 u8 module, width, lane;
2275 size_t alloc_size;
2276 int i;
2277 int err;
2278
2279 alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS;
2280 mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL);
2281 if (!mlxsw_sp->ports)
2282 return -ENOMEM;
2283
2284 for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) {
2285 err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module,
2286 &width, &lane);
2287 if (err)
2288 goto err_port_module_info_get;
2289 if (!width)
2290 continue;
2291 mlxsw_sp->port_to_module[i] = module;
2292 err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width,
2293 lane);
2294 if (err)
2295 goto err_port_create;
2296 }
2297 return 0;
2298
2299 err_port_create:
2300 err_port_module_info_get:
2301 for (i--; i >= 1; i--)
2302 mlxsw_sp_port_remove(mlxsw_sp, i);
2303 kfree(mlxsw_sp->ports);
2304 return err;
2305 }
2306
2307 static u8 mlxsw_sp_cluster_base_port_get(u8 local_port)
2308 {
2309 u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX;
2310
2311 return local_port - offset;
2312 }
2313
2314 static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port,
2315 u8 module, unsigned int count)
2316 {
2317 u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count;
2318 int err, i;
2319
2320 for (i = 0; i < count; i++) {
2321 err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module,
2322 width, i * width);
2323 if (err)
2324 goto err_port_module_map;
2325 }
2326
2327 for (i = 0; i < count; i++) {
2328 err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0);
2329 if (err)
2330 goto err_port_swid_set;
2331 }
2332
2333 for (i = 0; i < count; i++) {
2334 err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true,
2335 module, width, i * width);
2336 if (err)
2337 goto err_port_create;
2338 }
2339
2340 return 0;
2341
2342 err_port_create:
2343 for (i--; i >= 0; i--)
2344 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2345 i = count;
2346 err_port_swid_set:
2347 for (i--; i >= 0; i--)
2348 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i,
2349 MLXSW_PORT_SWID_DISABLED_PORT);
2350 i = count;
2351 err_port_module_map:
2352 for (i--; i >= 0; i--)
2353 mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i);
2354 return err;
2355 }
2356
2357 static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp,
2358 u8 base_port, unsigned int count)
2359 {
2360 u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH;
2361 int i;
2362
2363 /* Split by four means we need to re-create two ports, otherwise
2364 * only one.
2365 */
2366 count = count / 2;
2367
2368 for (i = 0; i < count; i++) {
2369 local_port = base_port + i * 2;
2370 module = mlxsw_sp->port_to_module[local_port];
2371
2372 mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width,
2373 0);
2374 }
2375
2376 for (i = 0; i < count; i++)
2377 __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0);
2378
2379 for (i = 0; i < count; i++) {
2380 local_port = base_port + i * 2;
2381 module = mlxsw_sp->port_to_module[local_port];
2382
2383 mlxsw_sp_port_create(mlxsw_sp, local_port, false, module,
2384 width, 0);
2385 }
2386 }
2387
2388 static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port,
2389 unsigned int count)
2390 {
2391 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2392 struct mlxsw_sp_port *mlxsw_sp_port;
2393 u8 module, cur_width, base_port;
2394 int i;
2395 int err;
2396
2397 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2398 if (!mlxsw_sp_port) {
2399 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2400 local_port);
2401 return -EINVAL;
2402 }
2403
2404 module = mlxsw_sp_port->mapping.module;
2405 cur_width = mlxsw_sp_port->mapping.width;
2406
2407 if (count != 2 && count != 4) {
2408 netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n");
2409 return -EINVAL;
2410 }
2411
2412 if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) {
2413 netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n");
2414 return -EINVAL;
2415 }
2416
2417 /* Make sure we have enough slave (even) ports for the split. */
2418 if (count == 2) {
2419 base_port = local_port;
2420 if (mlxsw_sp->ports[base_port + 1]) {
2421 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2422 return -EINVAL;
2423 }
2424 } else {
2425 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2426 if (mlxsw_sp->ports[base_port + 1] ||
2427 mlxsw_sp->ports[base_port + 3]) {
2428 netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n");
2429 return -EINVAL;
2430 }
2431 }
2432
2433 for (i = 0; i < count; i++)
2434 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2435
2436 err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count);
2437 if (err) {
2438 dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n");
2439 goto err_port_split_create;
2440 }
2441
2442 return 0;
2443
2444 err_port_split_create:
2445 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2446 return err;
2447 }
2448
2449 static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port)
2450 {
2451 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2452 struct mlxsw_sp_port *mlxsw_sp_port;
2453 u8 cur_width, base_port;
2454 unsigned int count;
2455 int i;
2456
2457 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2458 if (!mlxsw_sp_port) {
2459 dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n",
2460 local_port);
2461 return -EINVAL;
2462 }
2463
2464 if (!mlxsw_sp_port->split) {
2465 netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n");
2466 return -EINVAL;
2467 }
2468
2469 cur_width = mlxsw_sp_port->mapping.width;
2470 count = cur_width == 1 ? 4 : 2;
2471
2472 base_port = mlxsw_sp_cluster_base_port_get(local_port);
2473
2474 /* Determine which ports to remove. */
2475 if (count == 2 && local_port >= base_port + 2)
2476 base_port = base_port + 2;
2477
2478 for (i = 0; i < count; i++)
2479 mlxsw_sp_port_remove(mlxsw_sp, base_port + i);
2480
2481 mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count);
2482
2483 return 0;
2484 }
2485
2486 static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg,
2487 char *pude_pl, void *priv)
2488 {
2489 struct mlxsw_sp *mlxsw_sp = priv;
2490 struct mlxsw_sp_port *mlxsw_sp_port;
2491 enum mlxsw_reg_pude_oper_status status;
2492 u8 local_port;
2493
2494 local_port = mlxsw_reg_pude_local_port_get(pude_pl);
2495 mlxsw_sp_port = mlxsw_sp->ports[local_port];
2496 if (!mlxsw_sp_port)
2497 return;
2498
2499 status = mlxsw_reg_pude_oper_status_get(pude_pl);
2500 if (status == MLXSW_PORT_OPER_STATUS_UP) {
2501 netdev_info(mlxsw_sp_port->dev, "link up\n");
2502 netif_carrier_on(mlxsw_sp_port->dev);
2503 } else {
2504 netdev_info(mlxsw_sp_port->dev, "link down\n");
2505 netif_carrier_off(mlxsw_sp_port->dev);
2506 }
2507 }
2508
2509 static struct mlxsw_event_listener mlxsw_sp_pude_event = {
2510 .func = mlxsw_sp_pude_event_func,
2511 .trap_id = MLXSW_TRAP_ID_PUDE,
2512 };
2513
2514 static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp,
2515 enum mlxsw_event_trap_id trap_id)
2516 {
2517 struct mlxsw_event_listener *el;
2518 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2519 int err;
2520
2521 switch (trap_id) {
2522 case MLXSW_TRAP_ID_PUDE:
2523 el = &mlxsw_sp_pude_event;
2524 break;
2525 }
2526 err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp);
2527 if (err)
2528 return err;
2529
2530 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id);
2531 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2532 if (err)
2533 goto err_event_trap_set;
2534
2535 return 0;
2536
2537 err_event_trap_set:
2538 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2539 return err;
2540 }
2541
2542 static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp,
2543 enum mlxsw_event_trap_id trap_id)
2544 {
2545 struct mlxsw_event_listener *el;
2546
2547 switch (trap_id) {
2548 case MLXSW_TRAP_ID_PUDE:
2549 el = &mlxsw_sp_pude_event;
2550 break;
2551 }
2552 mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp);
2553 }
2554
2555 static void mlxsw_sp_rx_listener_func(struct sk_buff *skb, u8 local_port,
2556 void *priv)
2557 {
2558 struct mlxsw_sp *mlxsw_sp = priv;
2559 struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port];
2560 struct mlxsw_sp_port_pcpu_stats *pcpu_stats;
2561
2562 if (unlikely(!mlxsw_sp_port)) {
2563 dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n",
2564 local_port);
2565 return;
2566 }
2567
2568 skb->dev = mlxsw_sp_port->dev;
2569
2570 pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats);
2571 u64_stats_update_begin(&pcpu_stats->syncp);
2572 pcpu_stats->rx_packets++;
2573 pcpu_stats->rx_bytes += skb->len;
2574 u64_stats_update_end(&pcpu_stats->syncp);
2575
2576 skb->protocol = eth_type_trans(skb, skb->dev);
2577 netif_receive_skb(skb);
2578 }
2579
2580 static const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = {
2581 {
2582 .func = mlxsw_sp_rx_listener_func,
2583 .local_port = MLXSW_PORT_DONT_CARE,
2584 .trap_id = MLXSW_TRAP_ID_FDB_MC,
2585 },
2586 /* Traps for specific L2 packet types, not trapped as FDB MC */
2587 {
2588 .func = mlxsw_sp_rx_listener_func,
2589 .local_port = MLXSW_PORT_DONT_CARE,
2590 .trap_id = MLXSW_TRAP_ID_STP,
2591 },
2592 {
2593 .func = mlxsw_sp_rx_listener_func,
2594 .local_port = MLXSW_PORT_DONT_CARE,
2595 .trap_id = MLXSW_TRAP_ID_LACP,
2596 },
2597 {
2598 .func = mlxsw_sp_rx_listener_func,
2599 .local_port = MLXSW_PORT_DONT_CARE,
2600 .trap_id = MLXSW_TRAP_ID_EAPOL,
2601 },
2602 {
2603 .func = mlxsw_sp_rx_listener_func,
2604 .local_port = MLXSW_PORT_DONT_CARE,
2605 .trap_id = MLXSW_TRAP_ID_LLDP,
2606 },
2607 {
2608 .func = mlxsw_sp_rx_listener_func,
2609 .local_port = MLXSW_PORT_DONT_CARE,
2610 .trap_id = MLXSW_TRAP_ID_MMRP,
2611 },
2612 {
2613 .func = mlxsw_sp_rx_listener_func,
2614 .local_port = MLXSW_PORT_DONT_CARE,
2615 .trap_id = MLXSW_TRAP_ID_MVRP,
2616 },
2617 {
2618 .func = mlxsw_sp_rx_listener_func,
2619 .local_port = MLXSW_PORT_DONT_CARE,
2620 .trap_id = MLXSW_TRAP_ID_RPVST,
2621 },
2622 {
2623 .func = mlxsw_sp_rx_listener_func,
2624 .local_port = MLXSW_PORT_DONT_CARE,
2625 .trap_id = MLXSW_TRAP_ID_DHCP,
2626 },
2627 {
2628 .func = mlxsw_sp_rx_listener_func,
2629 .local_port = MLXSW_PORT_DONT_CARE,
2630 .trap_id = MLXSW_TRAP_ID_IGMP_QUERY,
2631 },
2632 {
2633 .func = mlxsw_sp_rx_listener_func,
2634 .local_port = MLXSW_PORT_DONT_CARE,
2635 .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT,
2636 },
2637 {
2638 .func = mlxsw_sp_rx_listener_func,
2639 .local_port = MLXSW_PORT_DONT_CARE,
2640 .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT,
2641 },
2642 {
2643 .func = mlxsw_sp_rx_listener_func,
2644 .local_port = MLXSW_PORT_DONT_CARE,
2645 .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE,
2646 },
2647 {
2648 .func = mlxsw_sp_rx_listener_func,
2649 .local_port = MLXSW_PORT_DONT_CARE,
2650 .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT,
2651 },
2652 {
2653 .func = mlxsw_sp_rx_listener_func,
2654 .local_port = MLXSW_PORT_DONT_CARE,
2655 .trap_id = MLXSW_TRAP_ID_ARPBC,
2656 },
2657 {
2658 .func = mlxsw_sp_rx_listener_func,
2659 .local_port = MLXSW_PORT_DONT_CARE,
2660 .trap_id = MLXSW_TRAP_ID_ARPUC,
2661 },
2662 {
2663 .func = mlxsw_sp_rx_listener_func,
2664 .local_port = MLXSW_PORT_DONT_CARE,
2665 .trap_id = MLXSW_TRAP_ID_IP2ME,
2666 },
2667 {
2668 .func = mlxsw_sp_rx_listener_func,
2669 .local_port = MLXSW_PORT_DONT_CARE,
2670 .trap_id = MLXSW_TRAP_ID_RTR_INGRESS0,
2671 },
2672 {
2673 .func = mlxsw_sp_rx_listener_func,
2674 .local_port = MLXSW_PORT_DONT_CARE,
2675 .trap_id = MLXSW_TRAP_ID_HOST_MISS_IPV4,
2676 },
2677 };
2678
2679 static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
2680 {
2681 char htgt_pl[MLXSW_REG_HTGT_LEN];
2682 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2683 int i;
2684 int err;
2685
2686 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX);
2687 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2688 if (err)
2689 return err;
2690
2691 mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL);
2692 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl);
2693 if (err)
2694 return err;
2695
2696 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2697 err = mlxsw_core_rx_listener_register(mlxsw_sp->core,
2698 &mlxsw_sp_rx_listener[i],
2699 mlxsw_sp);
2700 if (err)
2701 goto err_rx_listener_register;
2702
2703 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU,
2704 mlxsw_sp_rx_listener[i].trap_id);
2705 err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2706 if (err)
2707 goto err_rx_trap_set;
2708 }
2709 return 0;
2710
2711 err_rx_trap_set:
2712 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2713 &mlxsw_sp_rx_listener[i],
2714 mlxsw_sp);
2715 err_rx_listener_register:
2716 for (i--; i >= 0; i--) {
2717 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2718 mlxsw_sp_rx_listener[i].trap_id);
2719 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2720
2721 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2722 &mlxsw_sp_rx_listener[i],
2723 mlxsw_sp);
2724 }
2725 return err;
2726 }
2727
2728 static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
2729 {
2730 char hpkt_pl[MLXSW_REG_HPKT_LEN];
2731 int i;
2732
2733 for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) {
2734 mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_DISCARD,
2735 mlxsw_sp_rx_listener[i].trap_id);
2736 mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl);
2737
2738 mlxsw_core_rx_listener_unregister(mlxsw_sp->core,
2739 &mlxsw_sp_rx_listener[i],
2740 mlxsw_sp);
2741 }
2742 }
2743
2744 static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core,
2745 enum mlxsw_reg_sfgc_type type,
2746 enum mlxsw_reg_sfgc_bridge_type bridge_type)
2747 {
2748 enum mlxsw_flood_table_type table_type;
2749 enum mlxsw_sp_flood_table flood_table;
2750 char sfgc_pl[MLXSW_REG_SFGC_LEN];
2751
2752 if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID)
2753 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID;
2754 else
2755 table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST;
2756
2757 if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST)
2758 flood_table = MLXSW_SP_FLOOD_TABLE_UC;
2759 else
2760 flood_table = MLXSW_SP_FLOOD_TABLE_BM;
2761
2762 mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type,
2763 flood_table);
2764 return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl);
2765 }
2766
2767 static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp)
2768 {
2769 int type, err;
2770
2771 for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) {
2772 if (type == MLXSW_REG_SFGC_TYPE_RESERVED)
2773 continue;
2774
2775 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2776 MLXSW_REG_SFGC_BRIDGE_TYPE_VFID);
2777 if (err)
2778 return err;
2779
2780 err = __mlxsw_sp_flood_init(mlxsw_sp->core, type,
2781 MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID);
2782 if (err)
2783 return err;
2784 }
2785
2786 return 0;
2787 }
2788
2789 static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)
2790 {
2791 char slcr_pl[MLXSW_REG_SLCR_LEN];
2792
2793 mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC |
2794 MLXSW_REG_SLCR_LAG_HASH_DMAC |
2795 MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE |
2796 MLXSW_REG_SLCR_LAG_HASH_VLANID |
2797 MLXSW_REG_SLCR_LAG_HASH_SIP |
2798 MLXSW_REG_SLCR_LAG_HASH_DIP |
2799 MLXSW_REG_SLCR_LAG_HASH_SPORT |
2800 MLXSW_REG_SLCR_LAG_HASH_DPORT |
2801 MLXSW_REG_SLCR_LAG_HASH_IPPROTO);
2802 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl);
2803 }
2804
2805 static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core,
2806 const struct mlxsw_bus_info *mlxsw_bus_info)
2807 {
2808 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2809 int err;
2810
2811 mlxsw_sp->core = mlxsw_core;
2812 mlxsw_sp->bus_info = mlxsw_bus_info;
2813 INIT_LIST_HEAD(&mlxsw_sp->fids);
2814 INIT_LIST_HEAD(&mlxsw_sp->vfids.list);
2815 INIT_LIST_HEAD(&mlxsw_sp->br_mids.list);
2816
2817 err = mlxsw_sp_base_mac_get(mlxsw_sp);
2818 if (err) {
2819 dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n");
2820 return err;
2821 }
2822
2823 err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2824 if (err) {
2825 dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n");
2826 return err;
2827 }
2828
2829 err = mlxsw_sp_traps_init(mlxsw_sp);
2830 if (err) {
2831 dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n");
2832 goto err_rx_listener_register;
2833 }
2834
2835 err = mlxsw_sp_flood_init(mlxsw_sp);
2836 if (err) {
2837 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n");
2838 goto err_flood_init;
2839 }
2840
2841 err = mlxsw_sp_buffers_init(mlxsw_sp);
2842 if (err) {
2843 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n");
2844 goto err_buffers_init;
2845 }
2846
2847 err = mlxsw_sp_lag_init(mlxsw_sp);
2848 if (err) {
2849 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n");
2850 goto err_lag_init;
2851 }
2852
2853 err = mlxsw_sp_switchdev_init(mlxsw_sp);
2854 if (err) {
2855 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n");
2856 goto err_switchdev_init;
2857 }
2858
2859 err = mlxsw_sp_router_init(mlxsw_sp);
2860 if (err) {
2861 dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n");
2862 goto err_router_init;
2863 }
2864
2865 err = mlxsw_sp_span_init(mlxsw_sp);
2866 if (err) {
2867 dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n");
2868 goto err_span_init;
2869 }
2870
2871 err = mlxsw_sp_ports_create(mlxsw_sp);
2872 if (err) {
2873 dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n");
2874 goto err_ports_create;
2875 }
2876
2877 return 0;
2878
2879 err_ports_create:
2880 mlxsw_sp_span_fini(mlxsw_sp);
2881 err_span_init:
2882 mlxsw_sp_router_fini(mlxsw_sp);
2883 err_router_init:
2884 mlxsw_sp_switchdev_fini(mlxsw_sp);
2885 err_switchdev_init:
2886 err_lag_init:
2887 mlxsw_sp_buffers_fini(mlxsw_sp);
2888 err_buffers_init:
2889 err_flood_init:
2890 mlxsw_sp_traps_fini(mlxsw_sp);
2891 err_rx_listener_register:
2892 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2893 return err;
2894 }
2895
2896 static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core)
2897 {
2898 struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
2899 int i;
2900
2901 mlxsw_sp_ports_remove(mlxsw_sp);
2902 mlxsw_sp_span_fini(mlxsw_sp);
2903 mlxsw_sp_router_fini(mlxsw_sp);
2904 mlxsw_sp_switchdev_fini(mlxsw_sp);
2905 mlxsw_sp_buffers_fini(mlxsw_sp);
2906 mlxsw_sp_traps_fini(mlxsw_sp);
2907 mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE);
2908 WARN_ON(!list_empty(&mlxsw_sp->vfids.list));
2909 WARN_ON(!list_empty(&mlxsw_sp->fids));
2910 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
2911 WARN_ON_ONCE(mlxsw_sp->rifs[i]);
2912 }
2913
2914 static struct mlxsw_config_profile mlxsw_sp_config_profile = {
2915 .used_max_vepa_channels = 1,
2916 .max_vepa_channels = 0,
2917 .used_max_lag = 1,
2918 .max_lag = MLXSW_SP_LAG_MAX,
2919 .used_max_port_per_lag = 1,
2920 .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX,
2921 .used_max_mid = 1,
2922 .max_mid = MLXSW_SP_MID_MAX,
2923 .used_max_pgt = 1,
2924 .max_pgt = 0,
2925 .used_max_system_port = 1,
2926 .max_system_port = 64,
2927 .used_max_vlan_groups = 1,
2928 .max_vlan_groups = 127,
2929 .used_max_regions = 1,
2930 .max_regions = 400,
2931 .used_flood_tables = 1,
2932 .used_flood_mode = 1,
2933 .flood_mode = 3,
2934 .max_fid_offset_flood_tables = 2,
2935 .fid_offset_flood_table_size = VLAN_N_VID - 1,
2936 .max_fid_flood_tables = 2,
2937 .fid_flood_table_size = MLXSW_SP_VFID_MAX,
2938 .used_max_ib_mc = 1,
2939 .max_ib_mc = 0,
2940 .used_max_pkey = 1,
2941 .max_pkey = 0,
2942 .used_kvd_sizes = 1,
2943 .kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE,
2944 .kvd_hash_single_size = MLXSW_SP_KVD_HASH_SINGLE_SIZE,
2945 .kvd_hash_double_size = MLXSW_SP_KVD_HASH_DOUBLE_SIZE,
2946 .swid_config = {
2947 {
2948 .used_type = 1,
2949 .type = MLXSW_PORT_SWID_TYPE_ETH,
2950 }
2951 },
2952 .resource_query_enable = 1,
2953 };
2954
2955 static struct mlxsw_driver mlxsw_sp_driver = {
2956 .kind = MLXSW_DEVICE_KIND_SPECTRUM,
2957 .owner = THIS_MODULE,
2958 .priv_size = sizeof(struct mlxsw_sp),
2959 .init = mlxsw_sp_init,
2960 .fini = mlxsw_sp_fini,
2961 .port_split = mlxsw_sp_port_split,
2962 .port_unsplit = mlxsw_sp_port_unsplit,
2963 .sb_pool_get = mlxsw_sp_sb_pool_get,
2964 .sb_pool_set = mlxsw_sp_sb_pool_set,
2965 .sb_port_pool_get = mlxsw_sp_sb_port_pool_get,
2966 .sb_port_pool_set = mlxsw_sp_sb_port_pool_set,
2967 .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get,
2968 .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set,
2969 .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot,
2970 .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear,
2971 .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get,
2972 .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get,
2973 .txhdr_construct = mlxsw_sp_txhdr_construct,
2974 .txhdr_len = MLXSW_TXHDR_LEN,
2975 .profile = &mlxsw_sp_config_profile,
2976 };
2977
2978 static bool mlxsw_sp_port_dev_check(const struct net_device *dev)
2979 {
2980 return dev->netdev_ops == &mlxsw_sp_port_netdev_ops;
2981 }
2982
2983 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev)
2984 {
2985 struct net_device *lower_dev;
2986 struct list_head *iter;
2987
2988 if (mlxsw_sp_port_dev_check(dev))
2989 return netdev_priv(dev);
2990
2991 netdev_for_each_all_lower_dev(dev, lower_dev, iter) {
2992 if (mlxsw_sp_port_dev_check(lower_dev))
2993 return netdev_priv(lower_dev);
2994 }
2995 return NULL;
2996 }
2997
2998 static struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev)
2999 {
3000 struct mlxsw_sp_port *mlxsw_sp_port;
3001
3002 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev);
3003 return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL;
3004 }
3005
3006 static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev)
3007 {
3008 struct net_device *lower_dev;
3009 struct list_head *iter;
3010
3011 if (mlxsw_sp_port_dev_check(dev))
3012 return netdev_priv(dev);
3013
3014 netdev_for_each_all_lower_dev_rcu(dev, lower_dev, iter) {
3015 if (mlxsw_sp_port_dev_check(lower_dev))
3016 return netdev_priv(lower_dev);
3017 }
3018 return NULL;
3019 }
3020
3021 struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev)
3022 {
3023 struct mlxsw_sp_port *mlxsw_sp_port;
3024
3025 rcu_read_lock();
3026 mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev);
3027 if (mlxsw_sp_port)
3028 dev_hold(mlxsw_sp_port->dev);
3029 rcu_read_unlock();
3030 return mlxsw_sp_port;
3031 }
3032
3033 void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port)
3034 {
3035 dev_put(mlxsw_sp_port->dev);
3036 }
3037
3038 static bool mlxsw_sp_rif_should_config(struct mlxsw_sp_rif *r,
3039 unsigned long event)
3040 {
3041 switch (event) {
3042 case NETDEV_UP:
3043 if (!r)
3044 return true;
3045 r->ref_count++;
3046 return false;
3047 case NETDEV_DOWN:
3048 if (r && --r->ref_count == 0)
3049 return true;
3050 /* It is possible we already removed the RIF ourselves
3051 * if it was assigned to a netdev that is now a bridge
3052 * or LAG slave.
3053 */
3054 return false;
3055 }
3056
3057 return false;
3058 }
3059
3060 static int mlxsw_sp_avail_rif_get(struct mlxsw_sp *mlxsw_sp)
3061 {
3062 int i;
3063
3064 for (i = 0; i < MLXSW_SP_RIF_MAX; i++)
3065 if (!mlxsw_sp->rifs[i])
3066 return i;
3067
3068 return MLXSW_SP_RIF_MAX;
3069 }
3070
3071 static void mlxsw_sp_vport_rif_sp_attr_get(struct mlxsw_sp_port *mlxsw_sp_vport,
3072 bool *p_lagged, u16 *p_system_port)
3073 {
3074 u8 local_port = mlxsw_sp_vport->local_port;
3075
3076 *p_lagged = mlxsw_sp_vport->lagged;
3077 *p_system_port = *p_lagged ? mlxsw_sp_vport->lag_id : local_port;
3078 }
3079
3080 static int mlxsw_sp_vport_rif_sp_op(struct mlxsw_sp_port *mlxsw_sp_vport,
3081 struct net_device *l3_dev, u16 rif,
3082 bool create)
3083 {
3084 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3085 bool lagged = mlxsw_sp_vport->lagged;
3086 char ritr_pl[MLXSW_REG_RITR_LEN];
3087 u16 system_port;
3088
3089 mlxsw_reg_ritr_pack(ritr_pl, create, MLXSW_REG_RITR_SP_IF, rif,
3090 l3_dev->mtu, l3_dev->dev_addr);
3091
3092 mlxsw_sp_vport_rif_sp_attr_get(mlxsw_sp_vport, &lagged, &system_port);
3093 mlxsw_reg_ritr_sp_if_pack(ritr_pl, lagged, system_port,
3094 mlxsw_sp_vport_vid_get(mlxsw_sp_vport));
3095
3096 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3097 }
3098
3099 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
3100
3101 static struct mlxsw_sp_fid *
3102 mlxsw_sp_rfid_alloc(u16 fid, struct net_device *l3_dev)
3103 {
3104 struct mlxsw_sp_fid *f;
3105
3106 f = kzalloc(sizeof(*f), GFP_KERNEL);
3107 if (!f)
3108 return NULL;
3109
3110 f->leave = mlxsw_sp_vport_rif_sp_leave;
3111 f->ref_count = 0;
3112 f->dev = l3_dev;
3113 f->fid = fid;
3114
3115 return f;
3116 }
3117
3118 static struct mlxsw_sp_rif *
3119 mlxsw_sp_rif_alloc(u16 rif, struct net_device *l3_dev, struct mlxsw_sp_fid *f)
3120 {
3121 struct mlxsw_sp_rif *r;
3122
3123 r = kzalloc(sizeof(*r), GFP_KERNEL);
3124 if (!r)
3125 return NULL;
3126
3127 ether_addr_copy(r->addr, l3_dev->dev_addr);
3128 r->mtu = l3_dev->mtu;
3129 r->ref_count = 1;
3130 r->dev = l3_dev;
3131 r->rif = rif;
3132 r->f = f;
3133
3134 return r;
3135 }
3136
3137 static struct mlxsw_sp_rif *
3138 mlxsw_sp_vport_rif_sp_create(struct mlxsw_sp_port *mlxsw_sp_vport,
3139 struct net_device *l3_dev)
3140 {
3141 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3142 struct mlxsw_sp_fid *f;
3143 struct mlxsw_sp_rif *r;
3144 u16 fid, rif;
3145 int err;
3146
3147 rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3148 if (rif == MLXSW_SP_RIF_MAX)
3149 return ERR_PTR(-ERANGE);
3150
3151 err = mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, true);
3152 if (err)
3153 return ERR_PTR(err);
3154
3155 fid = mlxsw_sp_rif_sp_to_fid(rif);
3156 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, true);
3157 if (err)
3158 goto err_rif_fdb_op;
3159
3160 f = mlxsw_sp_rfid_alloc(fid, l3_dev);
3161 if (!f) {
3162 err = -ENOMEM;
3163 goto err_rfid_alloc;
3164 }
3165
3166 r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3167 if (!r) {
3168 err = -ENOMEM;
3169 goto err_rif_alloc;
3170 }
3171
3172 f->r = r;
3173 mlxsw_sp->rifs[rif] = r;
3174
3175 return r;
3176
3177 err_rif_alloc:
3178 kfree(f);
3179 err_rfid_alloc:
3180 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3181 err_rif_fdb_op:
3182 mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3183 return ERR_PTR(err);
3184 }
3185
3186 static void mlxsw_sp_vport_rif_sp_destroy(struct mlxsw_sp_port *mlxsw_sp_vport,
3187 struct mlxsw_sp_rif *r)
3188 {
3189 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3190 struct net_device *l3_dev = r->dev;
3191 struct mlxsw_sp_fid *f = r->f;
3192 u16 fid = f->fid;
3193 u16 rif = r->rif;
3194
3195 mlxsw_sp->rifs[rif] = NULL;
3196 f->r = NULL;
3197
3198 kfree(r);
3199
3200 kfree(f);
3201
3202 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, fid, false);
3203
3204 mlxsw_sp_vport_rif_sp_op(mlxsw_sp_vport, l3_dev, rif, false);
3205 }
3206
3207 static int mlxsw_sp_vport_rif_sp_join(struct mlxsw_sp_port *mlxsw_sp_vport,
3208 struct net_device *l3_dev)
3209 {
3210 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp;
3211 struct mlxsw_sp_rif *r;
3212
3213 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, l3_dev);
3214 if (!r) {
3215 r = mlxsw_sp_vport_rif_sp_create(mlxsw_sp_vport, l3_dev);
3216 if (IS_ERR(r))
3217 return PTR_ERR(r);
3218 }
3219
3220 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, r->f);
3221 r->f->ref_count++;
3222
3223 netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", r->f->fid);
3224
3225 return 0;
3226 }
3227
3228 static void mlxsw_sp_vport_rif_sp_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
3229 {
3230 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3231
3232 netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
3233
3234 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
3235 if (--f->ref_count == 0)
3236 mlxsw_sp_vport_rif_sp_destroy(mlxsw_sp_vport, f->r);
3237 }
3238
3239 static int mlxsw_sp_inetaddr_vport_event(struct net_device *l3_dev,
3240 struct net_device *port_dev,
3241 unsigned long event, u16 vid)
3242 {
3243 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(port_dev);
3244 struct mlxsw_sp_port *mlxsw_sp_vport;
3245
3246 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3247 if (WARN_ON(!mlxsw_sp_vport))
3248 return -EINVAL;
3249
3250 switch (event) {
3251 case NETDEV_UP:
3252 return mlxsw_sp_vport_rif_sp_join(mlxsw_sp_vport, l3_dev);
3253 case NETDEV_DOWN:
3254 mlxsw_sp_vport_rif_sp_leave(mlxsw_sp_vport);
3255 break;
3256 }
3257
3258 return 0;
3259 }
3260
3261 static int mlxsw_sp_inetaddr_port_event(struct net_device *port_dev,
3262 unsigned long event)
3263 {
3264 if (netif_is_bridge_port(port_dev) || netif_is_lag_port(port_dev))
3265 return 0;
3266
3267 return mlxsw_sp_inetaddr_vport_event(port_dev, port_dev, event, 1);
3268 }
3269
3270 static int __mlxsw_sp_inetaddr_lag_event(struct net_device *l3_dev,
3271 struct net_device *lag_dev,
3272 unsigned long event, u16 vid)
3273 {
3274 struct net_device *port_dev;
3275 struct list_head *iter;
3276 int err;
3277
3278 netdev_for_each_lower_dev(lag_dev, port_dev, iter) {
3279 if (mlxsw_sp_port_dev_check(port_dev)) {
3280 err = mlxsw_sp_inetaddr_vport_event(l3_dev, port_dev,
3281 event, vid);
3282 if (err)
3283 return err;
3284 }
3285 }
3286
3287 return 0;
3288 }
3289
3290 static int mlxsw_sp_inetaddr_lag_event(struct net_device *lag_dev,
3291 unsigned long event)
3292 {
3293 if (netif_is_bridge_port(lag_dev))
3294 return 0;
3295
3296 return __mlxsw_sp_inetaddr_lag_event(lag_dev, lag_dev, event, 1);
3297 }
3298
3299 static struct mlxsw_sp_fid *mlxsw_sp_bridge_fid_get(struct mlxsw_sp *mlxsw_sp,
3300 struct net_device *l3_dev)
3301 {
3302 u16 fid;
3303
3304 if (is_vlan_dev(l3_dev))
3305 fid = vlan_dev_vlan_id(l3_dev);
3306 else if (mlxsw_sp->master_bridge.dev == l3_dev)
3307 fid = 1;
3308 else
3309 return mlxsw_sp_vfid_find(mlxsw_sp, l3_dev);
3310
3311 return mlxsw_sp_fid_find(mlxsw_sp, fid);
3312 }
3313
3314 static enum mlxsw_reg_ritr_if_type mlxsw_sp_rif_type_get(u16 fid)
3315 {
3316 if (mlxsw_sp_fid_is_vfid(fid))
3317 return MLXSW_REG_RITR_FID_IF;
3318 else
3319 return MLXSW_REG_RITR_VLAN_IF;
3320 }
3321
3322 static int mlxsw_sp_rif_bridge_op(struct mlxsw_sp *mlxsw_sp,
3323 struct net_device *l3_dev,
3324 u16 fid, u16 rif,
3325 bool create)
3326 {
3327 enum mlxsw_reg_ritr_if_type rif_type;
3328 char ritr_pl[MLXSW_REG_RITR_LEN];
3329
3330 rif_type = mlxsw_sp_rif_type_get(fid);
3331 mlxsw_reg_ritr_pack(ritr_pl, create, rif_type, rif, l3_dev->mtu,
3332 l3_dev->dev_addr);
3333 mlxsw_reg_ritr_fid_set(ritr_pl, rif_type, fid);
3334
3335 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3336 }
3337
3338 static int mlxsw_sp_rif_bridge_create(struct mlxsw_sp *mlxsw_sp,
3339 struct net_device *l3_dev,
3340 struct mlxsw_sp_fid *f)
3341 {
3342 struct mlxsw_sp_rif *r;
3343 u16 rif;
3344 int err;
3345
3346 rif = mlxsw_sp_avail_rif_get(mlxsw_sp);
3347 if (rif == MLXSW_SP_RIF_MAX)
3348 return -ERANGE;
3349
3350 err = mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, true);
3351 if (err)
3352 return err;
3353
3354 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, true);
3355 if (err)
3356 goto err_rif_fdb_op;
3357
3358 r = mlxsw_sp_rif_alloc(rif, l3_dev, f);
3359 if (!r) {
3360 err = -ENOMEM;
3361 goto err_rif_alloc;
3362 }
3363
3364 f->r = r;
3365 mlxsw_sp->rifs[rif] = r;
3366
3367 netdev_dbg(l3_dev, "RIF=%d created\n", rif);
3368
3369 return 0;
3370
3371 err_rif_alloc:
3372 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3373 err_rif_fdb_op:
3374 mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3375 return err;
3376 }
3377
3378 void mlxsw_sp_rif_bridge_destroy(struct mlxsw_sp *mlxsw_sp,
3379 struct mlxsw_sp_rif *r)
3380 {
3381 struct net_device *l3_dev = r->dev;
3382 struct mlxsw_sp_fid *f = r->f;
3383 u16 rif = r->rif;
3384
3385 mlxsw_sp->rifs[rif] = NULL;
3386 f->r = NULL;
3387
3388 kfree(r);
3389
3390 mlxsw_sp_rif_fdb_op(mlxsw_sp, l3_dev->dev_addr, f->fid, false);
3391
3392 mlxsw_sp_rif_bridge_op(mlxsw_sp, l3_dev, f->fid, rif, false);
3393
3394 netdev_dbg(l3_dev, "RIF=%d destroyed\n", rif);
3395 }
3396
3397 static int mlxsw_sp_inetaddr_bridge_event(struct net_device *l3_dev,
3398 struct net_device *br_dev,
3399 unsigned long event)
3400 {
3401 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(l3_dev);
3402 struct mlxsw_sp_fid *f;
3403
3404 /* FID can either be an actual FID if the L3 device is the
3405 * VLAN-aware bridge or a VLAN device on top. Otherwise, the
3406 * L3 device is a VLAN-unaware bridge and we get a vFID.
3407 */
3408 f = mlxsw_sp_bridge_fid_get(mlxsw_sp, l3_dev);
3409 if (WARN_ON(!f))
3410 return -EINVAL;
3411
3412 switch (event) {
3413 case NETDEV_UP:
3414 return mlxsw_sp_rif_bridge_create(mlxsw_sp, l3_dev, f);
3415 case NETDEV_DOWN:
3416 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
3417 break;
3418 }
3419
3420 return 0;
3421 }
3422
3423 static int mlxsw_sp_inetaddr_vlan_event(struct net_device *vlan_dev,
3424 unsigned long event)
3425 {
3426 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
3427 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_lower_get(vlan_dev);
3428 u16 vid = vlan_dev_vlan_id(vlan_dev);
3429
3430 if (mlxsw_sp_port_dev_check(real_dev))
3431 return mlxsw_sp_inetaddr_vport_event(vlan_dev, real_dev, event,
3432 vid);
3433 else if (netif_is_lag_master(real_dev))
3434 return __mlxsw_sp_inetaddr_lag_event(vlan_dev, real_dev, event,
3435 vid);
3436 else if (netif_is_bridge_master(real_dev) &&
3437 mlxsw_sp->master_bridge.dev == real_dev)
3438 return mlxsw_sp_inetaddr_bridge_event(vlan_dev, real_dev,
3439 event);
3440
3441 return 0;
3442 }
3443
3444 static int mlxsw_sp_inetaddr_event(struct notifier_block *unused,
3445 unsigned long event, void *ptr)
3446 {
3447 struct in_ifaddr *ifa = (struct in_ifaddr *) ptr;
3448 struct net_device *dev = ifa->ifa_dev->dev;
3449 struct mlxsw_sp *mlxsw_sp;
3450 struct mlxsw_sp_rif *r;
3451 int err = 0;
3452
3453 mlxsw_sp = mlxsw_sp_lower_get(dev);
3454 if (!mlxsw_sp)
3455 goto out;
3456
3457 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3458 if (!mlxsw_sp_rif_should_config(r, event))
3459 goto out;
3460
3461 if (mlxsw_sp_port_dev_check(dev))
3462 err = mlxsw_sp_inetaddr_port_event(dev, event);
3463 else if (netif_is_lag_master(dev))
3464 err = mlxsw_sp_inetaddr_lag_event(dev, event);
3465 else if (netif_is_bridge_master(dev))
3466 err = mlxsw_sp_inetaddr_bridge_event(dev, dev, event);
3467 else if (is_vlan_dev(dev))
3468 err = mlxsw_sp_inetaddr_vlan_event(dev, event);
3469
3470 out:
3471 return notifier_from_errno(err);
3472 }
3473
3474 static int mlxsw_sp_rif_edit(struct mlxsw_sp *mlxsw_sp, u16 rif,
3475 const char *mac, int mtu)
3476 {
3477 char ritr_pl[MLXSW_REG_RITR_LEN];
3478 int err;
3479
3480 mlxsw_reg_ritr_rif_pack(ritr_pl, rif);
3481 err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3482 if (err)
3483 return err;
3484
3485 mlxsw_reg_ritr_mtu_set(ritr_pl, mtu);
3486 mlxsw_reg_ritr_if_mac_memcpy_to(ritr_pl, mac);
3487 mlxsw_reg_ritr_op_set(ritr_pl, MLXSW_REG_RITR_RIF_CREATE);
3488 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ritr), ritr_pl);
3489 }
3490
3491 static int mlxsw_sp_netdevice_router_port_event(struct net_device *dev)
3492 {
3493 struct mlxsw_sp *mlxsw_sp;
3494 struct mlxsw_sp_rif *r;
3495 int err;
3496
3497 mlxsw_sp = mlxsw_sp_lower_get(dev);
3498 if (!mlxsw_sp)
3499 return 0;
3500
3501 r = mlxsw_sp_rif_find_by_dev(mlxsw_sp, dev);
3502 if (!r)
3503 return 0;
3504
3505 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, false);
3506 if (err)
3507 return err;
3508
3509 err = mlxsw_sp_rif_edit(mlxsw_sp, r->rif, dev->dev_addr, dev->mtu);
3510 if (err)
3511 goto err_rif_edit;
3512
3513 err = mlxsw_sp_rif_fdb_op(mlxsw_sp, dev->dev_addr, r->f->fid, true);
3514 if (err)
3515 goto err_rif_fdb_op;
3516
3517 ether_addr_copy(r->addr, dev->dev_addr);
3518 r->mtu = dev->mtu;
3519
3520 netdev_dbg(dev, "Updated RIF=%d\n", r->rif);
3521
3522 return 0;
3523
3524 err_rif_fdb_op:
3525 mlxsw_sp_rif_edit(mlxsw_sp, r->rif, r->addr, r->mtu);
3526 err_rif_edit:
3527 mlxsw_sp_rif_fdb_op(mlxsw_sp, r->addr, r->f->fid, true);
3528 return err;
3529 }
3530
3531 static bool mlxsw_sp_lag_port_fid_member(struct mlxsw_sp_port *lag_port,
3532 u16 fid)
3533 {
3534 if (mlxsw_sp_fid_is_vfid(fid))
3535 return mlxsw_sp_port_vport_find_by_fid(lag_port, fid);
3536 else
3537 return test_bit(fid, lag_port->active_vlans);
3538 }
3539
3540 static bool mlxsw_sp_port_fdb_should_flush(struct mlxsw_sp_port *mlxsw_sp_port,
3541 u16 fid)
3542 {
3543 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3544 u8 local_port = mlxsw_sp_port->local_port;
3545 u16 lag_id = mlxsw_sp_port->lag_id;
3546 int i, count = 0;
3547
3548 if (!mlxsw_sp_port->lagged)
3549 return true;
3550
3551 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3552 struct mlxsw_sp_port *lag_port;
3553
3554 lag_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i);
3555 if (!lag_port || lag_port->local_port == local_port)
3556 continue;
3557 if (mlxsw_sp_lag_port_fid_member(lag_port, fid))
3558 count++;
3559 }
3560
3561 return !count;
3562 }
3563
3564 static int
3565 mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3566 u16 fid)
3567 {
3568 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3569 char sfdf_pl[MLXSW_REG_SFDF_LEN];
3570
3571 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID);
3572 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3573 mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl,
3574 mlxsw_sp_port->local_port);
3575
3576 netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using Port=%d, FID=%d\n",
3577 mlxsw_sp_port->local_port, fid);
3578
3579 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3580 }
3581
3582 static int
3583 mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port,
3584 u16 fid)
3585 {
3586 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3587 char sfdf_pl[MLXSW_REG_SFDF_LEN];
3588
3589 mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID);
3590 mlxsw_reg_sfdf_fid_set(sfdf_pl, fid);
3591 mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id);
3592
3593 netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using LAG ID=%d, FID=%d\n",
3594 mlxsw_sp_port->lag_id, fid);
3595
3596 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl);
3597 }
3598
3599 int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid)
3600 {
3601 if (!mlxsw_sp_port_fdb_should_flush(mlxsw_sp_port, fid))
3602 return 0;
3603
3604 if (mlxsw_sp_port->lagged)
3605 return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port,
3606 fid);
3607 else
3608 return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, fid);
3609 }
3610
3611 static void mlxsw_sp_master_bridge_gone_sync(struct mlxsw_sp *mlxsw_sp)
3612 {
3613 struct mlxsw_sp_fid *f, *tmp;
3614
3615 list_for_each_entry_safe(f, tmp, &mlxsw_sp->fids, list)
3616 if (--f->ref_count == 0)
3617 mlxsw_sp_fid_destroy(mlxsw_sp, f);
3618 else
3619 WARN_ON_ONCE(1);
3620 }
3621
3622 static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp,
3623 struct net_device *br_dev)
3624 {
3625 return !mlxsw_sp->master_bridge.dev ||
3626 mlxsw_sp->master_bridge.dev == br_dev;
3627 }
3628
3629 static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp,
3630 struct net_device *br_dev)
3631 {
3632 mlxsw_sp->master_bridge.dev = br_dev;
3633 mlxsw_sp->master_bridge.ref_count++;
3634 }
3635
3636 static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp)
3637 {
3638 if (--mlxsw_sp->master_bridge.ref_count == 0) {
3639 mlxsw_sp->master_bridge.dev = NULL;
3640 /* It's possible upper VLAN devices are still holding
3641 * references to underlying FIDs. Drop the reference
3642 * and release the resources if it was the last one.
3643 * If it wasn't, then something bad happened.
3644 */
3645 mlxsw_sp_master_bridge_gone_sync(mlxsw_sp);
3646 }
3647 }
3648
3649 static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port,
3650 struct net_device *br_dev)
3651 {
3652 struct net_device *dev = mlxsw_sp_port->dev;
3653 int err;
3654
3655 /* When port is not bridged untagged packets are tagged with
3656 * PVID=VID=1, thereby creating an implicit VLAN interface in
3657 * the device. Remove it and let bridge code take care of its
3658 * own VLANs.
3659 */
3660 err = mlxsw_sp_port_kill_vid(dev, 0, 1);
3661 if (err)
3662 return err;
3663
3664 mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev);
3665
3666 mlxsw_sp_port->learning = 1;
3667 mlxsw_sp_port->learning_sync = 1;
3668 mlxsw_sp_port->uc_flood = 1;
3669 mlxsw_sp_port->bridged = 1;
3670
3671 return 0;
3672 }
3673
3674 static void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3675 {
3676 struct net_device *dev = mlxsw_sp_port->dev;
3677
3678 mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1);
3679
3680 mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp);
3681
3682 mlxsw_sp_port->learning = 0;
3683 mlxsw_sp_port->learning_sync = 0;
3684 mlxsw_sp_port->uc_flood = 0;
3685 mlxsw_sp_port->bridged = 0;
3686
3687 /* Add implicit VLAN interface in the device, so that untagged
3688 * packets will be classified to the default vFID.
3689 */
3690 mlxsw_sp_port_add_vid(dev, 0, 1);
3691 }
3692
3693 static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3694 {
3695 char sldr_pl[MLXSW_REG_SLDR_LEN];
3696
3697 mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id);
3698 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3699 }
3700
3701 static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id)
3702 {
3703 char sldr_pl[MLXSW_REG_SLDR_LEN];
3704
3705 mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id);
3706 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3707 }
3708
3709 static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3710 u16 lag_id, u8 port_index)
3711 {
3712 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3713 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3714
3715 mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port,
3716 lag_id, port_index);
3717 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3718 }
3719
3720 static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3721 u16 lag_id)
3722 {
3723 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3724 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3725
3726 mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port,
3727 lag_id);
3728 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3729 }
3730
3731 static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port,
3732 u16 lag_id)
3733 {
3734 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3735 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3736
3737 mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port,
3738 lag_id);
3739 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3740 }
3741
3742 static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port,
3743 u16 lag_id)
3744 {
3745 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3746 char slcor_pl[MLXSW_REG_SLCOR_LEN];
3747
3748 mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port,
3749 lag_id);
3750 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl);
3751 }
3752
3753 static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3754 struct net_device *lag_dev,
3755 u16 *p_lag_id)
3756 {
3757 struct mlxsw_sp_upper *lag;
3758 int free_lag_id = -1;
3759 int i;
3760
3761 for (i = 0; i < MLXSW_SP_LAG_MAX; i++) {
3762 lag = mlxsw_sp_lag_get(mlxsw_sp, i);
3763 if (lag->ref_count) {
3764 if (lag->dev == lag_dev) {
3765 *p_lag_id = i;
3766 return 0;
3767 }
3768 } else if (free_lag_id < 0) {
3769 free_lag_id = i;
3770 }
3771 }
3772 if (free_lag_id < 0)
3773 return -EBUSY;
3774 *p_lag_id = free_lag_id;
3775 return 0;
3776 }
3777
3778 static bool
3779 mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp,
3780 struct net_device *lag_dev,
3781 struct netdev_lag_upper_info *lag_upper_info)
3782 {
3783 u16 lag_id;
3784
3785 if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0)
3786 return false;
3787 if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
3788 return false;
3789 return true;
3790 }
3791
3792 static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp,
3793 u16 lag_id, u8 *p_port_index)
3794 {
3795 int i;
3796
3797 for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) {
3798 if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) {
3799 *p_port_index = i;
3800 return 0;
3801 }
3802 }
3803 return -EBUSY;
3804 }
3805
3806 static void
3807 mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3808 u16 lag_id)
3809 {
3810 struct mlxsw_sp_port *mlxsw_sp_vport;
3811 struct mlxsw_sp_fid *f;
3812
3813 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3814 if (WARN_ON(!mlxsw_sp_vport))
3815 return;
3816
3817 /* If vPort is assigned a RIF, then leave it since it's no
3818 * longer valid.
3819 */
3820 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3821 if (f)
3822 f->leave(mlxsw_sp_vport);
3823
3824 mlxsw_sp_vport->lag_id = lag_id;
3825 mlxsw_sp_vport->lagged = 1;
3826 }
3827
3828 static void
3829 mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port)
3830 {
3831 struct mlxsw_sp_port *mlxsw_sp_vport;
3832 struct mlxsw_sp_fid *f;
3833
3834 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1);
3835 if (WARN_ON(!mlxsw_sp_vport))
3836 return;
3837
3838 f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
3839 if (f)
3840 f->leave(mlxsw_sp_vport);
3841
3842 mlxsw_sp_vport->lagged = 0;
3843 }
3844
3845 static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port,
3846 struct net_device *lag_dev)
3847 {
3848 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3849 struct mlxsw_sp_upper *lag;
3850 u16 lag_id;
3851 u8 port_index;
3852 int err;
3853
3854 err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id);
3855 if (err)
3856 return err;
3857 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3858 if (!lag->ref_count) {
3859 err = mlxsw_sp_lag_create(mlxsw_sp, lag_id);
3860 if (err)
3861 return err;
3862 lag->dev = lag_dev;
3863 }
3864
3865 err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index);
3866 if (err)
3867 return err;
3868 err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index);
3869 if (err)
3870 goto err_col_port_add;
3871 err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id);
3872 if (err)
3873 goto err_col_port_enable;
3874
3875 mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index,
3876 mlxsw_sp_port->local_port);
3877 mlxsw_sp_port->lag_id = lag_id;
3878 mlxsw_sp_port->lagged = 1;
3879 lag->ref_count++;
3880
3881 mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_id);
3882
3883 return 0;
3884
3885 err_col_port_enable:
3886 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3887 err_col_port_add:
3888 if (!lag->ref_count)
3889 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3890 return err;
3891 }
3892
3893 static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port,
3894 struct net_device *lag_dev)
3895 {
3896 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3897 u16 lag_id = mlxsw_sp_port->lag_id;
3898 struct mlxsw_sp_upper *lag;
3899
3900 if (!mlxsw_sp_port->lagged)
3901 return;
3902 lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id);
3903 WARN_ON(lag->ref_count == 0);
3904
3905 mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id);
3906 mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id);
3907
3908 if (mlxsw_sp_port->bridged) {
3909 mlxsw_sp_port_active_vlans_del(mlxsw_sp_port);
3910 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
3911 }
3912
3913 if (lag->ref_count == 1)
3914 mlxsw_sp_lag_destroy(mlxsw_sp, lag_id);
3915
3916 mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id,
3917 mlxsw_sp_port->local_port);
3918 mlxsw_sp_port->lagged = 0;
3919 lag->ref_count--;
3920
3921 mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port);
3922 }
3923
3924 static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port,
3925 u16 lag_id)
3926 {
3927 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3928 char sldr_pl[MLXSW_REG_SLDR_LEN];
3929
3930 mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id,
3931 mlxsw_sp_port->local_port);
3932 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3933 }
3934
3935 static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port,
3936 u16 lag_id)
3937 {
3938 struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
3939 char sldr_pl[MLXSW_REG_SLDR_LEN];
3940
3941 mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id,
3942 mlxsw_sp_port->local_port);
3943 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl);
3944 }
3945
3946 static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port,
3947 bool lag_tx_enabled)
3948 {
3949 if (lag_tx_enabled)
3950 return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port,
3951 mlxsw_sp_port->lag_id);
3952 else
3953 return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port,
3954 mlxsw_sp_port->lag_id);
3955 }
3956
3957 static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port,
3958 struct netdev_lag_lower_state_info *info)
3959 {
3960 return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled);
3961 }
3962
3963 static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port,
3964 struct net_device *vlan_dev)
3965 {
3966 struct mlxsw_sp_port *mlxsw_sp_vport;
3967 u16 vid = vlan_dev_vlan_id(vlan_dev);
3968
3969 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3970 if (WARN_ON(!mlxsw_sp_vport))
3971 return -EINVAL;
3972
3973 mlxsw_sp_vport->dev = vlan_dev;
3974
3975 return 0;
3976 }
3977
3978 static void mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port,
3979 struct net_device *vlan_dev)
3980 {
3981 struct mlxsw_sp_port *mlxsw_sp_vport;
3982 u16 vid = vlan_dev_vlan_id(vlan_dev);
3983
3984 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
3985 if (WARN_ON(!mlxsw_sp_vport))
3986 return;
3987
3988 mlxsw_sp_vport->dev = mlxsw_sp_port->dev;
3989 }
3990
3991 static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev,
3992 unsigned long event, void *ptr)
3993 {
3994 struct netdev_notifier_changeupper_info *info;
3995 struct mlxsw_sp_port *mlxsw_sp_port;
3996 struct net_device *upper_dev;
3997 struct mlxsw_sp *mlxsw_sp;
3998 int err = 0;
3999
4000 mlxsw_sp_port = netdev_priv(dev);
4001 mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
4002 info = ptr;
4003
4004 switch (event) {
4005 case NETDEV_PRECHANGEUPPER:
4006 upper_dev = info->upper_dev;
4007 if (!is_vlan_dev(upper_dev) &&
4008 !netif_is_lag_master(upper_dev) &&
4009 !netif_is_bridge_master(upper_dev))
4010 return -EINVAL;
4011 if (!info->linking)
4012 break;
4013 /* HW limitation forbids to put ports to multiple bridges. */
4014 if (netif_is_bridge_master(upper_dev) &&
4015 !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev))
4016 return -EINVAL;
4017 if (netif_is_lag_master(upper_dev) &&
4018 !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev,
4019 info->upper_info))
4020 return -EINVAL;
4021 if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev))
4022 return -EINVAL;
4023 if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) &&
4024 !netif_is_lag_master(vlan_dev_real_dev(upper_dev)))
4025 return -EINVAL;
4026 break;
4027 case NETDEV_CHANGEUPPER:
4028 upper_dev = info->upper_dev;
4029 if (is_vlan_dev(upper_dev)) {
4030 if (info->linking)
4031 err = mlxsw_sp_port_vlan_link(mlxsw_sp_port,
4032 upper_dev);
4033 else
4034 mlxsw_sp_port_vlan_unlink(mlxsw_sp_port,
4035 upper_dev);
4036 } else if (netif_is_bridge_master(upper_dev)) {
4037 if (info->linking)
4038 err = mlxsw_sp_port_bridge_join(mlxsw_sp_port,
4039 upper_dev);
4040 else
4041 mlxsw_sp_port_bridge_leave(mlxsw_sp_port);
4042 } else if (netif_is_lag_master(upper_dev)) {
4043 if (info->linking)
4044 err = mlxsw_sp_port_lag_join(mlxsw_sp_port,
4045 upper_dev);
4046 else
4047 mlxsw_sp_port_lag_leave(mlxsw_sp_port,
4048 upper_dev);
4049 } else {
4050 err = -EINVAL;
4051 WARN_ON(1);
4052 }
4053 break;
4054 }
4055
4056 return err;
4057 }
4058
4059 static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev,
4060 unsigned long event, void *ptr)
4061 {
4062 struct netdev_notifier_changelowerstate_info *info;
4063 struct mlxsw_sp_port *mlxsw_sp_port;
4064 int err;
4065
4066 mlxsw_sp_port = netdev_priv(dev);
4067 info = ptr;
4068
4069 switch (event) {
4070 case NETDEV_CHANGELOWERSTATE:
4071 if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) {
4072 err = mlxsw_sp_port_lag_changed(mlxsw_sp_port,
4073 info->lower_state_info);
4074 if (err)
4075 netdev_err(dev, "Failed to reflect link aggregation lower state change\n");
4076 }
4077 break;
4078 }
4079
4080 return 0;
4081 }
4082
4083 static int mlxsw_sp_netdevice_port_event(struct net_device *dev,
4084 unsigned long event, void *ptr)
4085 {
4086 switch (event) {
4087 case NETDEV_PRECHANGEUPPER:
4088 case NETDEV_CHANGEUPPER:
4089 return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr);
4090 case NETDEV_CHANGELOWERSTATE:
4091 return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr);
4092 }
4093
4094 return 0;
4095 }
4096
4097 static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev,
4098 unsigned long event, void *ptr)
4099 {
4100 struct net_device *dev;
4101 struct list_head *iter;
4102 int ret;
4103
4104 netdev_for_each_lower_dev(lag_dev, dev, iter) {
4105 if (mlxsw_sp_port_dev_check(dev)) {
4106 ret = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4107 if (ret)
4108 return ret;
4109 }
4110 }
4111
4112 return 0;
4113 }
4114
4115 static int mlxsw_sp_master_bridge_vlan_link(struct mlxsw_sp *mlxsw_sp,
4116 struct net_device *vlan_dev)
4117 {
4118 u16 fid = vlan_dev_vlan_id(vlan_dev);
4119 struct mlxsw_sp_fid *f;
4120
4121 f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4122 if (!f) {
4123 f = mlxsw_sp_fid_create(mlxsw_sp, fid);
4124 if (IS_ERR(f))
4125 return PTR_ERR(f);
4126 }
4127
4128 f->ref_count++;
4129
4130 return 0;
4131 }
4132
4133 static void mlxsw_sp_master_bridge_vlan_unlink(struct mlxsw_sp *mlxsw_sp,
4134 struct net_device *vlan_dev)
4135 {
4136 u16 fid = vlan_dev_vlan_id(vlan_dev);
4137 struct mlxsw_sp_fid *f;
4138
4139 f = mlxsw_sp_fid_find(mlxsw_sp, fid);
4140 if (f && f->r)
4141 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4142 if (f && --f->ref_count == 0)
4143 mlxsw_sp_fid_destroy(mlxsw_sp, f);
4144 }
4145
4146 static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev,
4147 unsigned long event, void *ptr)
4148 {
4149 struct netdev_notifier_changeupper_info *info;
4150 struct net_device *upper_dev;
4151 struct mlxsw_sp *mlxsw_sp;
4152 int err;
4153
4154 mlxsw_sp = mlxsw_sp_lower_get(br_dev);
4155 if (!mlxsw_sp)
4156 return 0;
4157 if (br_dev != mlxsw_sp->master_bridge.dev)
4158 return 0;
4159
4160 info = ptr;
4161
4162 switch (event) {
4163 case NETDEV_CHANGEUPPER:
4164 upper_dev = info->upper_dev;
4165 if (!is_vlan_dev(upper_dev))
4166 break;
4167 if (info->linking) {
4168 err = mlxsw_sp_master_bridge_vlan_link(mlxsw_sp,
4169 upper_dev);
4170 if (err)
4171 return err;
4172 } else {
4173 mlxsw_sp_master_bridge_vlan_unlink(mlxsw_sp, upper_dev);
4174 }
4175 break;
4176 }
4177
4178 return 0;
4179 }
4180
4181 static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
4182 {
4183 return find_first_zero_bit(mlxsw_sp->vfids.mapped,
4184 MLXSW_SP_VFID_MAX);
4185 }
4186
4187 static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
4188 {
4189 char sfmr_pl[MLXSW_REG_SFMR_LEN];
4190
4191 mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0);
4192 return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
4193 }
4194
4195 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport);
4196
4197 static struct mlxsw_sp_fid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
4198 struct net_device *br_dev)
4199 {
4200 struct device *dev = mlxsw_sp->bus_info->dev;
4201 struct mlxsw_sp_fid *f;
4202 u16 vfid, fid;
4203 int err;
4204
4205 vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
4206 if (vfid == MLXSW_SP_VFID_MAX) {
4207 dev_err(dev, "No available vFIDs\n");
4208 return ERR_PTR(-ERANGE);
4209 }
4210
4211 fid = mlxsw_sp_vfid_to_fid(vfid);
4212 err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
4213 if (err) {
4214 dev_err(dev, "Failed to create FID=%d\n", fid);
4215 return ERR_PTR(err);
4216 }
4217
4218 f = kzalloc(sizeof(*f), GFP_KERNEL);
4219 if (!f)
4220 goto err_allocate_vfid;
4221
4222 f->leave = mlxsw_sp_vport_vfid_leave;
4223 f->fid = fid;
4224 f->dev = br_dev;
4225
4226 list_add(&f->list, &mlxsw_sp->vfids.list);
4227 set_bit(vfid, mlxsw_sp->vfids.mapped);
4228
4229 return f;
4230
4231 err_allocate_vfid:
4232 mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4233 return ERR_PTR(-ENOMEM);
4234 }
4235
4236 static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
4237 struct mlxsw_sp_fid *f)
4238 {
4239 u16 vfid = mlxsw_sp_fid_to_vfid(f->fid);
4240 u16 fid = f->fid;
4241
4242 clear_bit(vfid, mlxsw_sp->vfids.mapped);
4243 list_del(&f->list);
4244
4245 if (f->r)
4246 mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->r);
4247
4248 kfree(f);
4249
4250 mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
4251 }
4252
4253 static int mlxsw_sp_vport_fid_map(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid,
4254 bool valid)
4255 {
4256 enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID;
4257 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4258
4259 return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, mt, valid, fid,
4260 vid);
4261 }
4262
4263 static int mlxsw_sp_vport_vfid_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4264 struct net_device *br_dev)
4265 {
4266 struct mlxsw_sp_fid *f;
4267 int err;
4268
4269 f = mlxsw_sp_vfid_find(mlxsw_sp_vport->mlxsw_sp, br_dev);
4270 if (!f) {
4271 f = mlxsw_sp_vfid_create(mlxsw_sp_vport->mlxsw_sp, br_dev);
4272 if (IS_ERR(f))
4273 return PTR_ERR(f);
4274 }
4275
4276 err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, true);
4277 if (err)
4278 goto err_vport_flood_set;
4279
4280 err = mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, true);
4281 if (err)
4282 goto err_vport_fid_map;
4283
4284 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, f);
4285 f->ref_count++;
4286
4287 netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", f->fid);
4288
4289 return 0;
4290
4291 err_vport_fid_map:
4292 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4293 err_vport_flood_set:
4294 if (!f->ref_count)
4295 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4296 return err;
4297 }
4298
4299 static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4300 {
4301 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4302
4303 netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid);
4304
4305 mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, false);
4306
4307 mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false);
4308
4309 mlxsw_sp_port_fdb_flush(mlxsw_sp_vport, f->fid);
4310
4311 mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL);
4312 if (--f->ref_count == 0)
4313 mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f);
4314 }
4315
4316 static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport,
4317 struct net_device *br_dev)
4318 {
4319 struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport);
4320 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4321 struct net_device *dev = mlxsw_sp_vport->dev;
4322 int err;
4323
4324 if (f && !WARN_ON(!f->leave))
4325 f->leave(mlxsw_sp_vport);
4326
4327 err = mlxsw_sp_vport_vfid_join(mlxsw_sp_vport, br_dev);
4328 if (err) {
4329 netdev_err(dev, "Failed to join vFID\n");
4330 return err;
4331 }
4332
4333 err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true);
4334 if (err) {
4335 netdev_err(dev, "Failed to enable learning\n");
4336 goto err_port_vid_learning_set;
4337 }
4338
4339 mlxsw_sp_vport->learning = 1;
4340 mlxsw_sp_vport->learning_sync = 1;
4341 mlxsw_sp_vport->uc_flood = 1;
4342 mlxsw_sp_vport->bridged = 1;
4343
4344 return 0;
4345
4346 err_port_vid_learning_set:
4347 mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4348 return err;
4349 }
4350
4351 static void mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport)
4352 {
4353 u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport);
4354
4355 mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false);
4356
4357 mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport);
4358
4359 mlxsw_sp_vport->learning = 0;
4360 mlxsw_sp_vport->learning_sync = 0;
4361 mlxsw_sp_vport->uc_flood = 0;
4362 mlxsw_sp_vport->bridged = 0;
4363 }
4364
4365 static bool
4366 mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port,
4367 const struct net_device *br_dev)
4368 {
4369 struct mlxsw_sp_port *mlxsw_sp_vport;
4370
4371 list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list,
4372 vport.list) {
4373 struct net_device *dev = mlxsw_sp_vport_dev_get(mlxsw_sp_vport);
4374
4375 if (dev && dev == br_dev)
4376 return false;
4377 }
4378
4379 return true;
4380 }
4381
4382 static int mlxsw_sp_netdevice_vport_event(struct net_device *dev,
4383 unsigned long event, void *ptr,
4384 u16 vid)
4385 {
4386 struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
4387 struct netdev_notifier_changeupper_info *info = ptr;
4388 struct mlxsw_sp_port *mlxsw_sp_vport;
4389 struct net_device *upper_dev;
4390 int err = 0;
4391
4392 mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid);
4393
4394 switch (event) {
4395 case NETDEV_PRECHANGEUPPER:
4396 upper_dev = info->upper_dev;
4397 if (!netif_is_bridge_master(upper_dev))
4398 return -EINVAL;
4399 if (!info->linking)
4400 break;
4401 /* We can't have multiple VLAN interfaces configured on
4402 * the same port and being members in the same bridge.
4403 */
4404 if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port,
4405 upper_dev))
4406 return -EINVAL;
4407 break;
4408 case NETDEV_CHANGEUPPER:
4409 upper_dev = info->upper_dev;
4410 if (info->linking) {
4411 if (WARN_ON(!mlxsw_sp_vport))
4412 return -EINVAL;
4413 err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport,
4414 upper_dev);
4415 } else {
4416 if (!mlxsw_sp_vport)
4417 return 0;
4418 mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport);
4419 }
4420 }
4421
4422 return err;
4423 }
4424
4425 static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev,
4426 unsigned long event, void *ptr,
4427 u16 vid)
4428 {
4429 struct net_device *dev;
4430 struct list_head *iter;
4431 int ret;
4432
4433 netdev_for_each_lower_dev(lag_dev, dev, iter) {
4434 if (mlxsw_sp_port_dev_check(dev)) {
4435 ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr,
4436 vid);
4437 if (ret)
4438 return ret;
4439 }
4440 }
4441
4442 return 0;
4443 }
4444
4445 static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev,
4446 unsigned long event, void *ptr)
4447 {
4448 struct net_device *real_dev = vlan_dev_real_dev(vlan_dev);
4449 u16 vid = vlan_dev_vlan_id(vlan_dev);
4450
4451 if (mlxsw_sp_port_dev_check(real_dev))
4452 return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr,
4453 vid);
4454 else if (netif_is_lag_master(real_dev))
4455 return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr,
4456 vid);
4457
4458 return 0;
4459 }
4460
4461 static int mlxsw_sp_netdevice_event(struct notifier_block *unused,
4462 unsigned long event, void *ptr)
4463 {
4464 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4465 int err = 0;
4466
4467 if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU)
4468 err = mlxsw_sp_netdevice_router_port_event(dev);
4469 else if (mlxsw_sp_port_dev_check(dev))
4470 err = mlxsw_sp_netdevice_port_event(dev, event, ptr);
4471 else if (netif_is_lag_master(dev))
4472 err = mlxsw_sp_netdevice_lag_event(dev, event, ptr);
4473 else if (netif_is_bridge_master(dev))
4474 err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr);
4475 else if (is_vlan_dev(dev))
4476 err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr);
4477
4478 return notifier_from_errno(err);
4479 }
4480
4481 static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = {
4482 .notifier_call = mlxsw_sp_netdevice_event,
4483 };
4484
4485 static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = {
4486 .notifier_call = mlxsw_sp_inetaddr_event,
4487 .priority = 10, /* Must be called before FIB notifier block */
4488 };
4489
4490 static int __init mlxsw_sp_module_init(void)
4491 {
4492 int err;
4493
4494 register_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4495 register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4496 err = mlxsw_core_driver_register(&mlxsw_sp_driver);
4497 if (err)
4498 goto err_core_driver_register;
4499 return 0;
4500
4501 err_core_driver_register:
4502 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4503 return err;
4504 }
4505
4506 static void __exit mlxsw_sp_module_exit(void)
4507 {
4508 mlxsw_core_driver_unregister(&mlxsw_sp_driver);
4509 unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb);
4510 unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb);
4511 }
4512
4513 module_init(mlxsw_sp_module_init);
4514 module_exit(mlxsw_sp_module_exit);
4515
4516 MODULE_LICENSE("Dual BSD/GPL");
4517 MODULE_AUTHOR("Jiri Pirko <jiri@mellanox.com>");
4518 MODULE_DESCRIPTION("Mellanox Spectrum driver");
4519 MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM);
ubuntu-bionic-kernel mirror