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1// SPDX-License-Identifier: GPL-2.0
2#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
3
4#include <linux/delay.h>
5#include <linux/etherdevice.h>
6#include <linux/hardirq.h>
7#include <linux/netdevice.h>
8#include <linux/if_ether.h>
9#include <linux/if_arp.h>
10#include <linux/kthread.h>
11#include <linux/kfifo.h>
12#include <net/cfg80211.h>
13
14#include "mesh.h"
15#include "decl.h"
16#include "cmd.h"
17
18
19static int lbs_add_mesh(struct lbs_private *priv);
20
21/***************************************************************************
22 * Mesh command handling
23 */
24
25static int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
26 struct cmd_ds_mesh_access *cmd)
27{
28 int ret;
29
30 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
31 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
32 cmd->hdr.result = 0;
33
34 cmd->action = cpu_to_le16(cmd_action);
35
36 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
37
38 return ret;
39}
40
41static int __lbs_mesh_config_send(struct lbs_private *priv,
42 struct cmd_ds_mesh_config *cmd,
43 uint16_t action, uint16_t type)
44{
45 int ret;
46 u16 command = CMD_MESH_CONFIG_OLD;
47
48 /*
49 * Command id is 0xac for v10 FW along with mesh interface
50 * id in bits 14-13-12.
51 */
52 if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
53 command = CMD_MESH_CONFIG |
54 (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
55
56 cmd->hdr.command = cpu_to_le16(command);
57 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
58 cmd->hdr.result = 0;
59
60 cmd->type = cpu_to_le16(type);
61 cmd->action = cpu_to_le16(action);
62
63 ret = lbs_cmd_with_response(priv, command, cmd);
64
65 return ret;
66}
67
68static int lbs_mesh_config_send(struct lbs_private *priv,
69 struct cmd_ds_mesh_config *cmd,
70 uint16_t action, uint16_t type)
71{
72 int ret;
73
74 if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
75 return -EOPNOTSUPP;
76
77 ret = __lbs_mesh_config_send(priv, cmd, action, type);
78 return ret;
79}
80
81/* This function is the CMD_MESH_CONFIG legacy function. It only handles the
82 * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG
83 * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
84 * lbs_mesh_config_send.
85 */
86static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
87 uint16_t chan)
88{
89 struct cmd_ds_mesh_config cmd;
90 struct mrvl_meshie *ie;
91
92 memset(&cmd, 0, sizeof(cmd));
93 cmd.channel = cpu_to_le16(chan);
94 ie = (struct mrvl_meshie *)cmd.data;
95
96 switch (action) {
97 case CMD_ACT_MESH_CONFIG_START:
98 ie->id = WLAN_EID_VENDOR_SPECIFIC;
99 ie->val.oui[0] = 0x00;
100 ie->val.oui[1] = 0x50;
101 ie->val.oui[2] = 0x43;
102 ie->val.type = MARVELL_MESH_IE_TYPE;
103 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
104 ie->val.version = MARVELL_MESH_IE_VERSION;
105 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
106 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
107 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
108 ie->val.mesh_id_len = priv->mesh_ssid_len;
109 memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
110 ie->len = sizeof(struct mrvl_meshie_val) -
111 IEEE80211_MAX_SSID_LEN + priv->mesh_ssid_len;
112 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
113 break;
114 case CMD_ACT_MESH_CONFIG_STOP:
115 break;
116 default:
117 return -1;
118 }
119 lbs_deb_cmd("mesh config action %d type %x channel %d SSID %*pE\n",
120 action, priv->mesh_tlv, chan, priv->mesh_ssid_len,
121 priv->mesh_ssid);
122
123 return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
124}
125
126int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel)
127{
128 priv->mesh_channel = channel;
129 return lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, channel);
130}
131
132static uint16_t lbs_mesh_get_channel(struct lbs_private *priv)
133{
134 return priv->mesh_channel ?: 1;
135}
136
137/***************************************************************************
138 * Mesh sysfs support
139 */
140
141/*
142 * Attributes exported through sysfs
143 */
144
145/**
146 * lbs_anycast_get - Get function for sysfs attribute anycast_mask
147 * @dev: the &struct device
148 * @attr: device attributes
149 * @buf: buffer where data will be returned
150 */
151static ssize_t lbs_anycast_get(struct device *dev,
152 struct device_attribute *attr, char * buf)
153{
154 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
155 struct cmd_ds_mesh_access mesh_access;
156 int ret;
157
158 memset(&mesh_access, 0, sizeof(mesh_access));
159
160 ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access);
161 if (ret)
162 return ret;
163
164 return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
165}
166
167/**
168 * lbs_anycast_set - Set function for sysfs attribute anycast_mask
169 * @dev: the &struct device
170 * @attr: device attributes
171 * @buf: buffer that contains new attribute value
172 * @count: size of buffer
173 */
174static ssize_t lbs_anycast_set(struct device *dev,
175 struct device_attribute *attr, const char * buf, size_t count)
176{
177 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
178 struct cmd_ds_mesh_access mesh_access;
179 uint32_t datum;
180 int ret;
181
182 memset(&mesh_access, 0, sizeof(mesh_access));
183 sscanf(buf, "%x", &datum);
184 mesh_access.data[0] = cpu_to_le32(datum);
185
186 ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access);
187 if (ret)
188 return ret;
189
190 return strlen(buf);
191}
192
193/**
194 * lbs_prb_rsp_limit_get - Get function for sysfs attribute prb_rsp_limit
195 * @dev: the &struct device
196 * @attr: device attributes
197 * @buf: buffer where data will be returned
198 */
199static ssize_t lbs_prb_rsp_limit_get(struct device *dev,
200 struct device_attribute *attr, char *buf)
201{
202 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
203 struct cmd_ds_mesh_access mesh_access;
204 int ret;
205 u32 retry_limit;
206
207 memset(&mesh_access, 0, sizeof(mesh_access));
208 mesh_access.data[0] = cpu_to_le32(CMD_ACT_GET);
209
210 ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
211 &mesh_access);
212 if (ret)
213 return ret;
214
215 retry_limit = le32_to_cpu(mesh_access.data[1]);
216 return snprintf(buf, 10, "%d\n", retry_limit);
217}
218
219/**
220 * lbs_prb_rsp_limit_set - Set function for sysfs attribute prb_rsp_limit
221 * @dev: the &struct device
222 * @attr: device attributes
223 * @buf: buffer that contains new attribute value
224 * @count: size of buffer
225 */
226static ssize_t lbs_prb_rsp_limit_set(struct device *dev,
227 struct device_attribute *attr, const char *buf, size_t count)
228{
229 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
230 struct cmd_ds_mesh_access mesh_access;
231 int ret;
232 unsigned long retry_limit;
233
234 memset(&mesh_access, 0, sizeof(mesh_access));
235 mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
236
237 ret = kstrtoul(buf, 10, &retry_limit);
238 if (ret)
239 return ret;
240 if (retry_limit > 15)
241 return -ENOTSUPP;
242
243 mesh_access.data[1] = cpu_to_le32(retry_limit);
244
245 ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
246 &mesh_access);
247 if (ret)
248 return ret;
249
250 return strlen(buf);
251}
252
253/**
254 * lbs_mesh_get - Get function for sysfs attribute mesh
255 * @dev: the &struct device
256 * @attr: device attributes
257 * @buf: buffer where data will be returned
258 */
259static ssize_t lbs_mesh_get(struct device *dev,
260 struct device_attribute *attr, char * buf)
261{
262 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
263 return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev);
264}
265
266/**
267 * lbs_mesh_set - Set function for sysfs attribute mesh
268 * @dev: the &struct device
269 * @attr: device attributes
270 * @buf: buffer that contains new attribute value
271 * @count: size of buffer
272 */
273static ssize_t lbs_mesh_set(struct device *dev,
274 struct device_attribute *attr, const char * buf, size_t count)
275{
276 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
277 int enable;
278
279 sscanf(buf, "%x", &enable);
280 enable = !!enable;
281 if (enable == !!priv->mesh_dev)
282 return count;
283
284 if (enable)
285 lbs_add_mesh(priv);
286 else
287 lbs_remove_mesh(priv);
288
289 return count;
290}
291
292/*
293 * lbs_mesh attribute to be exported per ethX interface
294 * through sysfs (/sys/class/net/ethX/lbs_mesh)
295 */
296static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set);
297
298/*
299 * anycast_mask attribute to be exported per mshX interface
300 * through sysfs (/sys/class/net/mshX/anycast_mask)
301 */
302static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
303
304/*
305 * prb_rsp_limit attribute to be exported per mshX interface
306 * through sysfs (/sys/class/net/mshX/prb_rsp_limit)
307 */
308static DEVICE_ATTR(prb_rsp_limit, 0644, lbs_prb_rsp_limit_get,
309 lbs_prb_rsp_limit_set);
310
311static struct attribute *lbs_mesh_sysfs_entries[] = {
312 &dev_attr_anycast_mask.attr,
313 &dev_attr_prb_rsp_limit.attr,
314 NULL,
315};
316
317static const struct attribute_group lbs_mesh_attr_group = {
318 .attrs = lbs_mesh_sysfs_entries,
319};
320
321
322/***************************************************************************
323 * Persistent configuration support
324 */
325
326static int mesh_get_default_parameters(struct device *dev,
327 struct mrvl_mesh_defaults *defs)
328{
329 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
330 struct cmd_ds_mesh_config cmd;
331 int ret;
332
333 memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
334 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_GET,
335 CMD_TYPE_MESH_GET_DEFAULTS);
336
337 if (ret)
338 return -EOPNOTSUPP;
339
340 memcpy(defs, &cmd.data[0], sizeof(struct mrvl_mesh_defaults));
341
342 return 0;
343}
344
345/**
346 * bootflag_get - Get function for sysfs attribute bootflag
347 * @dev: the &struct device
348 * @attr: device attributes
349 * @buf: buffer where data will be returned
350 */
351static ssize_t bootflag_get(struct device *dev,
352 struct device_attribute *attr, char *buf)
353{
354 struct mrvl_mesh_defaults defs;
355 int ret;
356
357 ret = mesh_get_default_parameters(dev, &defs);
358
359 if (ret)
360 return ret;
361
362 return snprintf(buf, 12, "%d\n", le32_to_cpu(defs.bootflag));
363}
364
365/**
366 * bootflag_set - Set function for sysfs attribute bootflag
367 * @dev: the &struct device
368 * @attr: device attributes
369 * @buf: buffer that contains new attribute value
370 * @count: size of buffer
371 */
372static ssize_t bootflag_set(struct device *dev, struct device_attribute *attr,
373 const char *buf, size_t count)
374{
375 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
376 struct cmd_ds_mesh_config cmd;
377 uint32_t datum;
378 int ret;
379
380 memset(&cmd, 0, sizeof(cmd));
381 ret = sscanf(buf, "%d", &datum);
382 if ((ret != 1) || (datum > 1))
383 return -EINVAL;
384
385 *((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum);
386 cmd.length = cpu_to_le16(sizeof(uint32_t));
387 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
388 CMD_TYPE_MESH_SET_BOOTFLAG);
389 if (ret)
390 return ret;
391
392 return strlen(buf);
393}
394
395/**
396 * boottime_get - Get function for sysfs attribute boottime
397 * @dev: the &struct device
398 * @attr: device attributes
399 * @buf: buffer where data will be returned
400 */
401static ssize_t boottime_get(struct device *dev,
402 struct device_attribute *attr, char *buf)
403{
404 struct mrvl_mesh_defaults defs;
405 int ret;
406
407 ret = mesh_get_default_parameters(dev, &defs);
408
409 if (ret)
410 return ret;
411
412 return snprintf(buf, 12, "%d\n", defs.boottime);
413}
414
415/**
416 * boottime_set - Set function for sysfs attribute boottime
417 * @dev: the &struct device
418 * @attr: device attributes
419 * @buf: buffer that contains new attribute value
420 * @count: size of buffer
421 */
422static ssize_t boottime_set(struct device *dev,
423 struct device_attribute *attr, const char *buf, size_t count)
424{
425 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
426 struct cmd_ds_mesh_config cmd;
427 uint32_t datum;
428 int ret;
429
430 memset(&cmd, 0, sizeof(cmd));
431 ret = sscanf(buf, "%d", &datum);
432 if ((ret != 1) || (datum > 255))
433 return -EINVAL;
434
435 /* A too small boot time will result in the device booting into
436 * standalone (no-host) mode before the host can take control of it,
437 * so the change will be hard to revert. This may be a desired
438 * feature (e.g to configure a very fast boot time for devices that
439 * will not be attached to a host), but dangerous. So I'm enforcing a
440 * lower limit of 20 seconds: remove and recompile the driver if this
441 * does not work for you.
442 */
443 datum = (datum < 20) ? 20 : datum;
444 cmd.data[0] = datum;
445 cmd.length = cpu_to_le16(sizeof(uint8_t));
446 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
447 CMD_TYPE_MESH_SET_BOOTTIME);
448 if (ret)
449 return ret;
450
451 return strlen(buf);
452}
453
454/**
455 * channel_get - Get function for sysfs attribute channel
456 * @dev: the &struct device
457 * @attr: device attributes
458 * @buf: buffer where data will be returned
459 */
460static ssize_t channel_get(struct device *dev,
461 struct device_attribute *attr, char *buf)
462{
463 struct mrvl_mesh_defaults defs;
464 int ret;
465
466 ret = mesh_get_default_parameters(dev, &defs);
467
468 if (ret)
469 return ret;
470
471 return snprintf(buf, 12, "%d\n", le16_to_cpu(defs.channel));
472}
473
474/**
475 * channel_set - Set function for sysfs attribute channel
476 * @dev: the &struct device
477 * @attr: device attributes
478 * @buf: buffer that contains new attribute value
479 * @count: size of buffer
480 */
481static ssize_t channel_set(struct device *dev, struct device_attribute *attr,
482 const char *buf, size_t count)
483{
484 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
485 struct cmd_ds_mesh_config cmd;
486 uint32_t datum;
487 int ret;
488
489 memset(&cmd, 0, sizeof(cmd));
490 ret = sscanf(buf, "%d", &datum);
491 if (ret != 1 || datum < 1 || datum > 11)
492 return -EINVAL;
493
494 *((__le16 *)&cmd.data[0]) = cpu_to_le16(datum);
495 cmd.length = cpu_to_le16(sizeof(uint16_t));
496 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
497 CMD_TYPE_MESH_SET_DEF_CHANNEL);
498 if (ret)
499 return ret;
500
501 return strlen(buf);
502}
503
504/**
505 * mesh_id_get - Get function for sysfs attribute mesh_id
506 * @dev: the &struct device
507 * @attr: device attributes
508 * @buf: buffer where data will be returned
509 */
510static ssize_t mesh_id_get(struct device *dev, struct device_attribute *attr,
511 char *buf)
512{
513 struct mrvl_mesh_defaults defs;
514 int ret;
515
516 ret = mesh_get_default_parameters(dev, &defs);
517
518 if (ret)
519 return ret;
520
521 if (defs.meshie.val.mesh_id_len > IEEE80211_MAX_SSID_LEN) {
522 dev_err(dev, "inconsistent mesh ID length\n");
523 defs.meshie.val.mesh_id_len = IEEE80211_MAX_SSID_LEN;
524 }
525
526 memcpy(buf, defs.meshie.val.mesh_id, defs.meshie.val.mesh_id_len);
527 buf[defs.meshie.val.mesh_id_len] = '\n';
528 buf[defs.meshie.val.mesh_id_len + 1] = '\0';
529
530 return defs.meshie.val.mesh_id_len + 1;
531}
532
533/**
534 * mesh_id_set - Set function for sysfs attribute mesh_id
535 * @dev: the &struct device
536 * @attr: device attributes
537 * @buf: buffer that contains new attribute value
538 * @count: size of buffer
539 */
540static ssize_t mesh_id_set(struct device *dev, struct device_attribute *attr,
541 const char *buf, size_t count)
542{
543 struct cmd_ds_mesh_config cmd;
544 struct mrvl_mesh_defaults defs;
545 struct mrvl_meshie *ie;
546 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
547 int len;
548 int ret;
549
550 if (count < 2 || count > IEEE80211_MAX_SSID_LEN + 1)
551 return -EINVAL;
552
553 memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
554 ie = (struct mrvl_meshie *) &cmd.data[0];
555
556 /* fetch all other Information Element parameters */
557 ret = mesh_get_default_parameters(dev, &defs);
558
559 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
560
561 /* transfer IE elements */
562 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
563
564 len = count - 1;
565 memcpy(ie->val.mesh_id, buf, len);
566 /* SSID len */
567 ie->val.mesh_id_len = len;
568 /* IE len */
569 ie->len = sizeof(struct mrvl_meshie_val) - IEEE80211_MAX_SSID_LEN + len;
570
571 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
572 CMD_TYPE_MESH_SET_MESH_IE);
573 if (ret)
574 return ret;
575
576 return strlen(buf);
577}
578
579/**
580 * protocol_id_get - Get function for sysfs attribute protocol_id
581 * @dev: the &struct device
582 * @attr: device attributes
583 * @buf: buffer where data will be returned
584 */
585static ssize_t protocol_id_get(struct device *dev,
586 struct device_attribute *attr, char *buf)
587{
588 struct mrvl_mesh_defaults defs;
589 int ret;
590
591 ret = mesh_get_default_parameters(dev, &defs);
592
593 if (ret)
594 return ret;
595
596 return snprintf(buf, 5, "%d\n", defs.meshie.val.active_protocol_id);
597}
598
599/**
600 * protocol_id_set - Set function for sysfs attribute protocol_id
601 * @dev: the &struct device
602 * @attr: device attributes
603 * @buf: buffer that contains new attribute value
604 * @count: size of buffer
605 */
606static ssize_t protocol_id_set(struct device *dev,
607 struct device_attribute *attr, const char *buf, size_t count)
608{
609 struct cmd_ds_mesh_config cmd;
610 struct mrvl_mesh_defaults defs;
611 struct mrvl_meshie *ie;
612 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
613 uint32_t datum;
614 int ret;
615
616 memset(&cmd, 0, sizeof(cmd));
617 ret = sscanf(buf, "%d", &datum);
618 if ((ret != 1) || (datum > 255))
619 return -EINVAL;
620
621 /* fetch all other Information Element parameters */
622 ret = mesh_get_default_parameters(dev, &defs);
623
624 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
625
626 /* transfer IE elements */
627 ie = (struct mrvl_meshie *) &cmd.data[0];
628 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
629 /* update protocol id */
630 ie->val.active_protocol_id = datum;
631
632 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
633 CMD_TYPE_MESH_SET_MESH_IE);
634 if (ret)
635 return ret;
636
637 return strlen(buf);
638}
639
640/**
641 * metric_id_get - Get function for sysfs attribute metric_id
642 * @dev: the &struct device
643 * @attr: device attributes
644 * @buf: buffer where data will be returned
645 */
646static ssize_t metric_id_get(struct device *dev,
647 struct device_attribute *attr, char *buf)
648{
649 struct mrvl_mesh_defaults defs;
650 int ret;
651
652 ret = mesh_get_default_parameters(dev, &defs);
653
654 if (ret)
655 return ret;
656
657 return snprintf(buf, 5, "%d\n", defs.meshie.val.active_metric_id);
658}
659
660/**
661 * metric_id_set - Set function for sysfs attribute metric_id
662 * @dev: the &struct device
663 * @attr: device attributes
664 * @buf: buffer that contains new attribute value
665 * @count: size of buffer
666 */
667static ssize_t metric_id_set(struct device *dev, struct device_attribute *attr,
668 const char *buf, size_t count)
669{
670 struct cmd_ds_mesh_config cmd;
671 struct mrvl_mesh_defaults defs;
672 struct mrvl_meshie *ie;
673 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
674 uint32_t datum;
675 int ret;
676
677 memset(&cmd, 0, sizeof(cmd));
678 ret = sscanf(buf, "%d", &datum);
679 if ((ret != 1) || (datum > 255))
680 return -EINVAL;
681
682 /* fetch all other Information Element parameters */
683 ret = mesh_get_default_parameters(dev, &defs);
684
685 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
686
687 /* transfer IE elements */
688 ie = (struct mrvl_meshie *) &cmd.data[0];
689 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
690 /* update metric id */
691 ie->val.active_metric_id = datum;
692
693 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
694 CMD_TYPE_MESH_SET_MESH_IE);
695 if (ret)
696 return ret;
697
698 return strlen(buf);
699}
700
701/**
702 * capability_get - Get function for sysfs attribute capability
703 * @dev: the &struct device
704 * @attr: device attributes
705 * @buf: buffer where data will be returned
706 */
707static ssize_t capability_get(struct device *dev,
708 struct device_attribute *attr, char *buf)
709{
710 struct mrvl_mesh_defaults defs;
711 int ret;
712
713 ret = mesh_get_default_parameters(dev, &defs);
714
715 if (ret)
716 return ret;
717
718 return snprintf(buf, 5, "%d\n", defs.meshie.val.mesh_capability);
719}
720
721/**
722 * capability_set - Set function for sysfs attribute capability
723 * @dev: the &struct device
724 * @attr: device attributes
725 * @buf: buffer that contains new attribute value
726 * @count: size of buffer
727 */
728static ssize_t capability_set(struct device *dev, struct device_attribute *attr,
729 const char *buf, size_t count)
730{
731 struct cmd_ds_mesh_config cmd;
732 struct mrvl_mesh_defaults defs;
733 struct mrvl_meshie *ie;
734 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
735 uint32_t datum;
736 int ret;
737
738 memset(&cmd, 0, sizeof(cmd));
739 ret = sscanf(buf, "%d", &datum);
740 if ((ret != 1) || (datum > 255))
741 return -EINVAL;
742
743 /* fetch all other Information Element parameters */
744 ret = mesh_get_default_parameters(dev, &defs);
745
746 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
747
748 /* transfer IE elements */
749 ie = (struct mrvl_meshie *) &cmd.data[0];
750 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
751 /* update value */
752 ie->val.mesh_capability = datum;
753
754 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
755 CMD_TYPE_MESH_SET_MESH_IE);
756 if (ret)
757 return ret;
758
759 return strlen(buf);
760}
761
762
763static DEVICE_ATTR(bootflag, 0644, bootflag_get, bootflag_set);
764static DEVICE_ATTR(boottime, 0644, boottime_get, boottime_set);
765static DEVICE_ATTR(channel, 0644, channel_get, channel_set);
766static DEVICE_ATTR(mesh_id, 0644, mesh_id_get, mesh_id_set);
767static DEVICE_ATTR(protocol_id, 0644, protocol_id_get, protocol_id_set);
768static DEVICE_ATTR(metric_id, 0644, metric_id_get, metric_id_set);
769static DEVICE_ATTR(capability, 0644, capability_get, capability_set);
770
771static struct attribute *boot_opts_attrs[] = {
772 &dev_attr_bootflag.attr,
773 &dev_attr_boottime.attr,
774 &dev_attr_channel.attr,
775 NULL
776};
777
778static const struct attribute_group boot_opts_group = {
779 .name = "boot_options",
780 .attrs = boot_opts_attrs,
781};
782
783static struct attribute *mesh_ie_attrs[] = {
784 &dev_attr_mesh_id.attr,
785 &dev_attr_protocol_id.attr,
786 &dev_attr_metric_id.attr,
787 &dev_attr_capability.attr,
788 NULL
789};
790
791static const struct attribute_group mesh_ie_group = {
792 .name = "mesh_ie",
793 .attrs = mesh_ie_attrs,
794};
795
796static void lbs_persist_config_init(struct net_device *dev)
797{
798 int ret;
799 ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
800 ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
801}
802
803static void lbs_persist_config_remove(struct net_device *dev)
804{
805 sysfs_remove_group(&(dev->dev.kobj), &boot_opts_group);
806 sysfs_remove_group(&(dev->dev.kobj), &mesh_ie_group);
807}
808
809
810/***************************************************************************
811 * Initializing and starting, stopping mesh
812 */
813
814/*
815 * Check mesh FW version and appropriately send the mesh start
816 * command
817 */
818int lbs_init_mesh(struct lbs_private *priv)
819{
820 int ret = 0;
821
822 /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
823 /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
824 /* 5.110.22 have mesh command with 0xa3 command id */
825 /* 10.0.0.p0 FW brings in mesh config command with different id */
826 /* Check FW version MSB and initialize mesh_fw_ver */
827 if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) {
828 /* Enable mesh, if supported, and work out which TLV it uses.
829 0x100 + 291 is an unofficial value used in 5.110.20.pXX
830 0x100 + 37 is the official value used in 5.110.21.pXX
831 but we check them in that order because 20.pXX doesn't
832 give an error -- it just silently fails. */
833
834 /* 5.110.20.pXX firmware will fail the command if the channel
835 doesn't match the existing channel. But only if the TLV
836 is correct. If the channel is wrong, _BOTH_ versions will
837 give an error to 0x100+291, and allow 0x100+37 to succeed.
838 It's just that 5.110.20.pXX will not have done anything
839 useful */
840
841 priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
842 if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) {
843 priv->mesh_tlv = TLV_TYPE_MESH_ID;
844 if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
845 priv->mesh_tlv = 0;
846 }
847 } else
848 if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
849 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) {
850 /* 10.0.0.pXX new firmwares should succeed with TLV
851 * 0x100+37; Do not invoke command with old TLV.
852 */
853 priv->mesh_tlv = TLV_TYPE_MESH_ID;
854 if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
855 priv->mesh_tlv = 0;
856 }
857
858 /* Stop meshing until interface is brought up */
859 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, 1);
860
861 if (priv->mesh_tlv) {
862 sprintf(priv->mesh_ssid, "mesh");
863 priv->mesh_ssid_len = 4;
864 ret = 1;
865 }
866
867 return ret;
868}
869
870void lbs_start_mesh(struct lbs_private *priv)
871{
872 lbs_add_mesh(priv);
873
874 if (device_create_file(&priv->dev->dev, &dev_attr_lbs_mesh))
875 netdev_err(priv->dev, "cannot register lbs_mesh attribute\n");
876}
877
878int lbs_deinit_mesh(struct lbs_private *priv)
879{
880 struct net_device *dev = priv->dev;
881 int ret = 0;
882
883 if (priv->mesh_tlv) {
884 device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
885 ret = 1;
886 }
887
888 return ret;
889}
890
891
892/**
893 * lbs_mesh_stop - close the mshX interface
894 *
895 * @dev: A pointer to &net_device structure
896 * returns: 0
897 */
898static int lbs_mesh_stop(struct net_device *dev)
899{
900 struct lbs_private *priv = dev->ml_priv;
901
902 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
903 lbs_mesh_get_channel(priv));
904
905 spin_lock_irq(&priv->driver_lock);
906
907 netif_stop_queue(dev);
908 netif_carrier_off(dev);
909
910 spin_unlock_irq(&priv->driver_lock);
911
912 lbs_update_mcast(priv);
913 if (!lbs_iface_active(priv))
914 lbs_stop_iface(priv);
915
916 return 0;
917}
918
919/**
920 * lbs_mesh_dev_open - open the mshX interface
921 *
922 * @dev: A pointer to &net_device structure
923 * returns: 0 or -EBUSY if monitor mode active
924 */
925static int lbs_mesh_dev_open(struct net_device *dev)
926{
927 struct lbs_private *priv = dev->ml_priv;
928 int ret = 0;
929
930 if (!priv->iface_running) {
931 ret = lbs_start_iface(priv);
932 if (ret)
933 goto out;
934 }
935
936 spin_lock_irq(&priv->driver_lock);
937
938 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
939 ret = -EBUSY;
940 spin_unlock_irq(&priv->driver_lock);
941 goto out;
942 }
943
944 netif_carrier_on(dev);
945
946 if (!priv->tx_pending_len)
947 netif_wake_queue(dev);
948
949 spin_unlock_irq(&priv->driver_lock);
950
951 ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
952 lbs_mesh_get_channel(priv));
953
954out:
955 return ret;
956}
957
958static const struct net_device_ops mesh_netdev_ops = {
959 .ndo_open = lbs_mesh_dev_open,
960 .ndo_stop = lbs_mesh_stop,
961 .ndo_start_xmit = lbs_hard_start_xmit,
962 .ndo_set_mac_address = lbs_set_mac_address,
963 .ndo_set_rx_mode = lbs_set_multicast_list,
964};
965
966/**
967 * lbs_add_mesh - add mshX interface
968 *
969 * @priv: A pointer to the &struct lbs_private structure
970 * returns: 0 if successful, -X otherwise
971 */
972static int lbs_add_mesh(struct lbs_private *priv)
973{
974 struct net_device *mesh_dev = NULL;
975 struct wireless_dev *mesh_wdev;
976 int ret = 0;
977
978 /* Allocate a virtual mesh device */
979 mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
980 if (!mesh_wdev) {
981 lbs_deb_mesh("init mshX wireless device failed\n");
982 ret = -ENOMEM;
983 goto done;
984 }
985
986 mesh_dev = alloc_netdev(0, "msh%d", NET_NAME_UNKNOWN, ether_setup);
987 if (!mesh_dev) {
988 lbs_deb_mesh("init mshX device failed\n");
989 ret = -ENOMEM;
990 goto err_free_wdev;
991 }
992
993 mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT;
994 mesh_wdev->wiphy = priv->wdev->wiphy;
995 mesh_wdev->netdev = mesh_dev;
996
997 mesh_dev->ml_priv = priv;
998 mesh_dev->ieee80211_ptr = mesh_wdev;
999 priv->mesh_dev = mesh_dev;
1000
1001 mesh_dev->netdev_ops = &mesh_netdev_ops;
1002 mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1003 eth_hw_addr_inherit(mesh_dev, priv->dev);
1004
1005 SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
1006
1007 mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1008 /* Register virtual mesh interface */
1009 ret = register_netdev(mesh_dev);
1010 if (ret) {
1011 pr_err("cannot register mshX virtual interface\n");
1012 goto err_free_netdev;
1013 }
1014
1015 ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1016 if (ret)
1017 goto err_unregister;
1018
1019 lbs_persist_config_init(mesh_dev);
1020
1021 /* Everything successful */
1022 ret = 0;
1023 goto done;
1024
1025err_unregister:
1026 unregister_netdev(mesh_dev);
1027
1028err_free_netdev:
1029 free_netdev(mesh_dev);
1030
1031err_free_wdev:
1032 kfree(mesh_wdev);
1033
1034done:
1035 return ret;
1036}
1037
1038void lbs_remove_mesh(struct lbs_private *priv)
1039{
1040 struct net_device *mesh_dev;
1041
1042 mesh_dev = priv->mesh_dev;
1043 if (!mesh_dev)
1044 return;
1045
1046 netif_stop_queue(mesh_dev);
1047 netif_carrier_off(mesh_dev);
1048 sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1049 lbs_persist_config_remove(mesh_dev);
1050 unregister_netdev(mesh_dev);
1051 priv->mesh_dev = NULL;
1052 kfree(mesh_dev->ieee80211_ptr);
1053 free_netdev(mesh_dev);
1054}
1055
1056
1057/***************************************************************************
1058 * Sending and receiving
1059 */
1060struct net_device *lbs_mesh_set_dev(struct lbs_private *priv,
1061 struct net_device *dev, struct rxpd *rxpd)
1062{
1063 if (priv->mesh_dev) {
1064 if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) {
1065 if (rxpd->rx_control & RxPD_MESH_FRAME)
1066 dev = priv->mesh_dev;
1067 } else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) {
1068 if (rxpd->u.bss.bss_num == MESH_IFACE_ID)
1069 dev = priv->mesh_dev;
1070 }
1071 }
1072 return dev;
1073}
1074
1075
1076void lbs_mesh_set_txpd(struct lbs_private *priv,
1077 struct net_device *dev, struct txpd *txpd)
1078{
1079 if (dev == priv->mesh_dev) {
1080 if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID)
1081 txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
1082 else if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
1083 txpd->u.bss.bss_num = MESH_IFACE_ID;
1084 }
1085}
1086
1087
1088/***************************************************************************
1089 * Ethtool related
1090 */
1091
1092static const char mesh_stat_strings[MESH_STATS_NUM][ETH_GSTRING_LEN] = {
1093 "drop_duplicate_bcast",
1094 "drop_ttl_zero",
1095 "drop_no_fwd_route",
1096 "drop_no_buffers",
1097 "fwded_unicast_cnt",
1098 "fwded_bcast_cnt",
1099 "drop_blind_table",
1100 "tx_failed_cnt"
1101};
1102
1103void lbs_mesh_ethtool_get_stats(struct net_device *dev,
1104 struct ethtool_stats *stats, uint64_t *data)
1105{
1106 struct lbs_private *priv = dev->ml_priv;
1107 struct cmd_ds_mesh_access mesh_access;
1108 int ret;
1109
1110 /* Get Mesh Statistics */
1111 ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_STATS, &mesh_access);
1112
1113 if (ret) {
1114 memset(data, 0, MESH_STATS_NUM*(sizeof(uint64_t)));
1115 return;
1116 }
1117
1118 priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]);
1119 priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]);
1120 priv->mstats.fwd_drop_noroute = le32_to_cpu(mesh_access.data[2]);
1121 priv->mstats.fwd_drop_nobuf = le32_to_cpu(mesh_access.data[3]);
1122 priv->mstats.fwd_unicast_cnt = le32_to_cpu(mesh_access.data[4]);
1123 priv->mstats.fwd_bcast_cnt = le32_to_cpu(mesh_access.data[5]);
1124 priv->mstats.drop_blind = le32_to_cpu(mesh_access.data[6]);
1125 priv->mstats.tx_failed_cnt = le32_to_cpu(mesh_access.data[7]);
1126
1127 data[0] = priv->mstats.fwd_drop_rbt;
1128 data[1] = priv->mstats.fwd_drop_ttl;
1129 data[2] = priv->mstats.fwd_drop_noroute;
1130 data[3] = priv->mstats.fwd_drop_nobuf;
1131 data[4] = priv->mstats.fwd_unicast_cnt;
1132 data[5] = priv->mstats.fwd_bcast_cnt;
1133 data[6] = priv->mstats.drop_blind;
1134 data[7] = priv->mstats.tx_failed_cnt;
1135}
1136
1137int lbs_mesh_ethtool_get_sset_count(struct net_device *dev, int sset)
1138{
1139 struct lbs_private *priv = dev->ml_priv;
1140
1141 if (sset == ETH_SS_STATS && dev == priv->mesh_dev)
1142 return MESH_STATS_NUM;
1143
1144 return -EOPNOTSUPP;
1145}
1146
1147void lbs_mesh_ethtool_get_strings(struct net_device *dev,
1148 uint32_t stringset, uint8_t *s)
1149{
1150 switch (stringset) {
1151 case ETH_SS_STATS:
1152 memcpy(s, mesh_stat_strings, sizeof(mesh_stat_strings));
1153 break;
1154 }
1155}
1// SPDX-License-Identifier: GPL-2.0
2#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
3
4#include <linux/delay.h>
5#include <linux/etherdevice.h>
6#include <linux/hardirq.h>
7#include <linux/netdevice.h>
8#include <linux/if_ether.h>
9#include <linux/if_arp.h>
10#include <linux/kthread.h>
11#include <linux/kfifo.h>
12#include <net/cfg80211.h>
13
14#include "mesh.h"
15#include "decl.h"
16#include "cmd.h"
17
18
19static int lbs_add_mesh(struct lbs_private *priv);
20
21/***************************************************************************
22 * Mesh command handling
23 */
24
25static int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
26 struct cmd_ds_mesh_access *cmd)
27{
28 int ret;
29
30 cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
31 cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
32 cmd->hdr.result = 0;
33
34 cmd->action = cpu_to_le16(cmd_action);
35
36 ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
37
38 return ret;
39}
40
41static int __lbs_mesh_config_send(struct lbs_private *priv,
42 struct cmd_ds_mesh_config *cmd,
43 uint16_t action, uint16_t type)
44{
45 int ret;
46 u16 command = CMD_MESH_CONFIG_OLD;
47
48 /*
49 * Command id is 0xac for v10 FW along with mesh interface
50 * id in bits 14-13-12.
51 */
52 if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
53 command = CMD_MESH_CONFIG |
54 (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
55
56 cmd->hdr.command = cpu_to_le16(command);
57 cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
58 cmd->hdr.result = 0;
59
60 cmd->type = cpu_to_le16(type);
61 cmd->action = cpu_to_le16(action);
62
63 ret = lbs_cmd_with_response(priv, command, cmd);
64
65 return ret;
66}
67
68static int lbs_mesh_config_send(struct lbs_private *priv,
69 struct cmd_ds_mesh_config *cmd,
70 uint16_t action, uint16_t type)
71{
72 int ret;
73
74 if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
75 return -EOPNOTSUPP;
76
77 ret = __lbs_mesh_config_send(priv, cmd, action, type);
78 return ret;
79}
80
81/* This function is the CMD_MESH_CONFIG legacy function. It only handles the
82 * START and STOP actions. The extended actions supported by CMD_MESH_CONFIG
83 * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
84 * lbs_mesh_config_send.
85 */
86static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
87 uint16_t chan)
88{
89 struct wireless_dev *mesh_wdev;
90 struct cmd_ds_mesh_config cmd;
91 struct mrvl_meshie *ie;
92
93 memset(&cmd, 0, sizeof(cmd));
94 cmd.channel = cpu_to_le16(chan);
95 ie = (struct mrvl_meshie *)cmd.data;
96
97 switch (action) {
98 case CMD_ACT_MESH_CONFIG_START:
99 ie->id = WLAN_EID_VENDOR_SPECIFIC;
100 ie->val.oui[0] = 0x00;
101 ie->val.oui[1] = 0x50;
102 ie->val.oui[2] = 0x43;
103 ie->val.type = MARVELL_MESH_IE_TYPE;
104 ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
105 ie->val.version = MARVELL_MESH_IE_VERSION;
106 ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
107 ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
108 ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
109
110 if (priv->mesh_dev) {
111 mesh_wdev = priv->mesh_dev->ieee80211_ptr;
112 ie->val.mesh_id_len = mesh_wdev->u.mesh.id_up_len;
113 memcpy(ie->val.mesh_id, mesh_wdev->u.mesh.id,
114 mesh_wdev->u.mesh.id_up_len);
115 }
116
117 ie->len = sizeof(struct mrvl_meshie_val) -
118 IEEE80211_MAX_SSID_LEN + ie->val.mesh_id_len;
119
120 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
121 break;
122 case CMD_ACT_MESH_CONFIG_STOP:
123 break;
124 default:
125 return -1;
126 }
127 lbs_deb_cmd("mesh config action %d type %x channel %d SSID %*pE\n",
128 action, priv->mesh_tlv, chan, ie->val.mesh_id_len,
129 ie->val.mesh_id);
130
131 return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
132}
133
134int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel)
135{
136 priv->mesh_channel = channel;
137 return lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, channel);
138}
139
140static uint16_t lbs_mesh_get_channel(struct lbs_private *priv)
141{
142 return priv->mesh_channel ?: 1;
143}
144
145/***************************************************************************
146 * Mesh sysfs support
147 */
148
149/*
150 * Attributes exported through sysfs
151 */
152
153/**
154 * anycast_mask_show - Get function for sysfs attribute anycast_mask
155 * @dev: the &struct device
156 * @attr: device attributes
157 * @buf: buffer where data will be returned
158 */
159static ssize_t anycast_mask_show(struct device *dev,
160 struct device_attribute *attr, char *buf)
161{
162 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
163 struct cmd_ds_mesh_access mesh_access;
164 int ret;
165
166 memset(&mesh_access, 0, sizeof(mesh_access));
167
168 ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access);
169 if (ret)
170 return ret;
171
172 return sysfs_emit(buf, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
173}
174
175/**
176 * anycast_mask_store - Set function for sysfs attribute anycast_mask
177 * @dev: the &struct device
178 * @attr: device attributes
179 * @buf: buffer that contains new attribute value
180 * @count: size of buffer
181 */
182static ssize_t anycast_mask_store(struct device *dev,
183 struct device_attribute *attr,
184 const char *buf, size_t count)
185{
186 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
187 struct cmd_ds_mesh_access mesh_access;
188 uint32_t datum;
189 int ret;
190
191 memset(&mesh_access, 0, sizeof(mesh_access));
192 sscanf(buf, "%x", &datum);
193 mesh_access.data[0] = cpu_to_le32(datum);
194
195 ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_ANYCAST, &mesh_access);
196 if (ret)
197 return ret;
198
199 return strlen(buf);
200}
201
202/**
203 * prb_rsp_limit_show - Get function for sysfs attribute prb_rsp_limit
204 * @dev: the &struct device
205 * @attr: device attributes
206 * @buf: buffer where data will be returned
207 */
208static ssize_t prb_rsp_limit_show(struct device *dev,
209 struct device_attribute *attr, char *buf)
210{
211 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
212 struct cmd_ds_mesh_access mesh_access;
213 int ret;
214 u32 retry_limit;
215
216 memset(&mesh_access, 0, sizeof(mesh_access));
217 mesh_access.data[0] = cpu_to_le32(CMD_ACT_GET);
218
219 ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
220 &mesh_access);
221 if (ret)
222 return ret;
223
224 retry_limit = le32_to_cpu(mesh_access.data[1]);
225 return sysfs_emit(buf, "%d\n", retry_limit);
226}
227
228/**
229 * prb_rsp_limit_store - Set function for sysfs attribute prb_rsp_limit
230 * @dev: the &struct device
231 * @attr: device attributes
232 * @buf: buffer that contains new attribute value
233 * @count: size of buffer
234 */
235static ssize_t prb_rsp_limit_store(struct device *dev,
236 struct device_attribute *attr,
237 const char *buf, size_t count)
238{
239 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
240 struct cmd_ds_mesh_access mesh_access;
241 int ret;
242 unsigned long retry_limit;
243
244 memset(&mesh_access, 0, sizeof(mesh_access));
245 mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
246
247 ret = kstrtoul(buf, 10, &retry_limit);
248 if (ret)
249 return ret;
250 if (retry_limit > 15)
251 return -ENOTSUPP;
252
253 mesh_access.data[1] = cpu_to_le32(retry_limit);
254
255 ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
256 &mesh_access);
257 if (ret)
258 return ret;
259
260 return strlen(buf);
261}
262
263/**
264 * lbs_mesh_show - Get function for sysfs attribute mesh
265 * @dev: the &struct device
266 * @attr: device attributes
267 * @buf: buffer where data will be returned
268 */
269static ssize_t lbs_mesh_show(struct device *dev,
270 struct device_attribute *attr, char *buf)
271{
272 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
273 return sysfs_emit(buf, "0x%X\n", !!priv->mesh_dev);
274}
275
276/**
277 * lbs_mesh_store - Set function for sysfs attribute mesh
278 * @dev: the &struct device
279 * @attr: device attributes
280 * @buf: buffer that contains new attribute value
281 * @count: size of buffer
282 */
283static ssize_t lbs_mesh_store(struct device *dev,
284 struct device_attribute *attr,
285 const char *buf, size_t count)
286{
287 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
288 int enable;
289
290 sscanf(buf, "%x", &enable);
291 enable = !!enable;
292 if (enable == !!priv->mesh_dev)
293 return count;
294
295 if (enable)
296 lbs_add_mesh(priv);
297 else
298 lbs_remove_mesh(priv);
299
300 return count;
301}
302
303/*
304 * lbs_mesh attribute to be exported per ethX interface
305 * through sysfs (/sys/class/net/ethX/lbs_mesh)
306 */
307static DEVICE_ATTR_RW(lbs_mesh);
308
309/*
310 * anycast_mask attribute to be exported per mshX interface
311 * through sysfs (/sys/class/net/mshX/anycast_mask)
312 */
313static DEVICE_ATTR_RW(anycast_mask);
314
315/*
316 * prb_rsp_limit attribute to be exported per mshX interface
317 * through sysfs (/sys/class/net/mshX/prb_rsp_limit)
318 */
319static DEVICE_ATTR_RW(prb_rsp_limit);
320
321static struct attribute *lbs_mesh_sysfs_entries[] = {
322 &dev_attr_anycast_mask.attr,
323 &dev_attr_prb_rsp_limit.attr,
324 NULL,
325};
326
327static const struct attribute_group lbs_mesh_attr_group = {
328 .attrs = lbs_mesh_sysfs_entries,
329};
330
331
332/***************************************************************************
333 * Persistent configuration support
334 */
335
336static int mesh_get_default_parameters(struct device *dev,
337 struct mrvl_mesh_defaults *defs)
338{
339 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
340 struct cmd_ds_mesh_config cmd;
341 int ret;
342
343 memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
344 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_GET,
345 CMD_TYPE_MESH_GET_DEFAULTS);
346
347 if (ret)
348 return -EOPNOTSUPP;
349
350 memcpy(defs, &cmd.data[0], sizeof(struct mrvl_mesh_defaults));
351
352 return 0;
353}
354
355/**
356 * bootflag_show - Get function for sysfs attribute bootflag
357 * @dev: the &struct device
358 * @attr: device attributes
359 * @buf: buffer where data will be returned
360 */
361static ssize_t bootflag_show(struct device *dev,
362 struct device_attribute *attr, char *buf)
363{
364 struct mrvl_mesh_defaults defs;
365 int ret;
366
367 ret = mesh_get_default_parameters(dev, &defs);
368
369 if (ret)
370 return ret;
371
372 return sysfs_emit(buf, "%d\n", le32_to_cpu(defs.bootflag));
373}
374
375/**
376 * bootflag_store - Set function for sysfs attribute bootflag
377 * @dev: the &struct device
378 * @attr: device attributes
379 * @buf: buffer that contains new attribute value
380 * @count: size of buffer
381 */
382static ssize_t bootflag_store(struct device *dev, struct device_attribute *attr,
383 const char *buf, size_t count)
384{
385 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
386 struct cmd_ds_mesh_config cmd;
387 uint32_t datum;
388 int ret;
389
390 memset(&cmd, 0, sizeof(cmd));
391 ret = sscanf(buf, "%d", &datum);
392 if ((ret != 1) || (datum > 1))
393 return -EINVAL;
394
395 *((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum);
396 cmd.length = cpu_to_le16(sizeof(uint32_t));
397 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
398 CMD_TYPE_MESH_SET_BOOTFLAG);
399 if (ret)
400 return ret;
401
402 return strlen(buf);
403}
404
405/**
406 * boottime_show - Get function for sysfs attribute boottime
407 * @dev: the &struct device
408 * @attr: device attributes
409 * @buf: buffer where data will be returned
410 */
411static ssize_t boottime_show(struct device *dev,
412 struct device_attribute *attr, char *buf)
413{
414 struct mrvl_mesh_defaults defs;
415 int ret;
416
417 ret = mesh_get_default_parameters(dev, &defs);
418
419 if (ret)
420 return ret;
421
422 return sysfs_emit(buf, "%d\n", defs.boottime);
423}
424
425/**
426 * boottime_store - Set function for sysfs attribute boottime
427 * @dev: the &struct device
428 * @attr: device attributes
429 * @buf: buffer that contains new attribute value
430 * @count: size of buffer
431 */
432static ssize_t boottime_store(struct device *dev,
433 struct device_attribute *attr,
434 const char *buf, size_t count)
435{
436 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
437 struct cmd_ds_mesh_config cmd;
438 uint32_t datum;
439 int ret;
440
441 memset(&cmd, 0, sizeof(cmd));
442 ret = sscanf(buf, "%d", &datum);
443 if ((ret != 1) || (datum > 255))
444 return -EINVAL;
445
446 /* A too small boot time will result in the device booting into
447 * standalone (no-host) mode before the host can take control of it,
448 * so the change will be hard to revert. This may be a desired
449 * feature (e.g to configure a very fast boot time for devices that
450 * will not be attached to a host), but dangerous. So I'm enforcing a
451 * lower limit of 20 seconds: remove and recompile the driver if this
452 * does not work for you.
453 */
454 datum = (datum < 20) ? 20 : datum;
455 cmd.data[0] = datum;
456 cmd.length = cpu_to_le16(sizeof(uint8_t));
457 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
458 CMD_TYPE_MESH_SET_BOOTTIME);
459 if (ret)
460 return ret;
461
462 return strlen(buf);
463}
464
465/**
466 * channel_show - Get function for sysfs attribute channel
467 * @dev: the &struct device
468 * @attr: device attributes
469 * @buf: buffer where data will be returned
470 */
471static ssize_t channel_show(struct device *dev,
472 struct device_attribute *attr, char *buf)
473{
474 struct mrvl_mesh_defaults defs;
475 int ret;
476
477 ret = mesh_get_default_parameters(dev, &defs);
478
479 if (ret)
480 return ret;
481
482 return sysfs_emit(buf, "%d\n", le16_to_cpu(defs.channel));
483}
484
485/**
486 * channel_store - Set function for sysfs attribute channel
487 * @dev: the &struct device
488 * @attr: device attributes
489 * @buf: buffer that contains new attribute value
490 * @count: size of buffer
491 */
492static ssize_t channel_store(struct device *dev, struct device_attribute *attr,
493 const char *buf, size_t count)
494{
495 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
496 struct cmd_ds_mesh_config cmd;
497 uint32_t datum;
498 int ret;
499
500 memset(&cmd, 0, sizeof(cmd));
501 ret = sscanf(buf, "%d", &datum);
502 if (ret != 1 || datum < 1 || datum > 11)
503 return -EINVAL;
504
505 *((__le16 *)&cmd.data[0]) = cpu_to_le16(datum);
506 cmd.length = cpu_to_le16(sizeof(uint16_t));
507 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
508 CMD_TYPE_MESH_SET_DEF_CHANNEL);
509 if (ret)
510 return ret;
511
512 return strlen(buf);
513}
514
515/**
516 * mesh_id_show - Get function for sysfs attribute mesh_id
517 * @dev: the &struct device
518 * @attr: device attributes
519 * @buf: buffer where data will be returned
520 */
521static ssize_t mesh_id_show(struct device *dev, struct device_attribute *attr,
522 char *buf)
523{
524 struct mrvl_mesh_defaults defs;
525 int ret;
526
527 ret = mesh_get_default_parameters(dev, &defs);
528
529 if (ret)
530 return ret;
531
532 if (defs.meshie.val.mesh_id_len > IEEE80211_MAX_SSID_LEN) {
533 dev_err(dev, "inconsistent mesh ID length\n");
534 defs.meshie.val.mesh_id_len = IEEE80211_MAX_SSID_LEN;
535 }
536
537 memcpy(buf, defs.meshie.val.mesh_id, defs.meshie.val.mesh_id_len);
538 buf[defs.meshie.val.mesh_id_len] = '\n';
539 buf[defs.meshie.val.mesh_id_len + 1] = '\0';
540
541 return defs.meshie.val.mesh_id_len + 1;
542}
543
544/**
545 * mesh_id_store - Set function for sysfs attribute mesh_id
546 * @dev: the &struct device
547 * @attr: device attributes
548 * @buf: buffer that contains new attribute value
549 * @count: size of buffer
550 */
551static ssize_t mesh_id_store(struct device *dev, struct device_attribute *attr,
552 const char *buf, size_t count)
553{
554 struct cmd_ds_mesh_config cmd;
555 struct mrvl_mesh_defaults defs;
556 struct mrvl_meshie *ie;
557 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
558 int len;
559 int ret;
560
561 if (count < 2 || count > IEEE80211_MAX_SSID_LEN + 1)
562 return -EINVAL;
563
564 memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
565 ie = (struct mrvl_meshie *) &cmd.data[0];
566
567 /* fetch all other Information Element parameters */
568 ret = mesh_get_default_parameters(dev, &defs);
569
570 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
571
572 /* transfer IE elements */
573 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
574
575 len = count - 1;
576 memcpy(ie->val.mesh_id, buf, len);
577 /* SSID len */
578 ie->val.mesh_id_len = len;
579 /* IE len */
580 ie->len = sizeof(struct mrvl_meshie_val) - IEEE80211_MAX_SSID_LEN + len;
581
582 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
583 CMD_TYPE_MESH_SET_MESH_IE);
584 if (ret)
585 return ret;
586
587 return strlen(buf);
588}
589
590/**
591 * protocol_id_show - Get function for sysfs attribute protocol_id
592 * @dev: the &struct device
593 * @attr: device attributes
594 * @buf: buffer where data will be returned
595 */
596static ssize_t protocol_id_show(struct device *dev,
597 struct device_attribute *attr,
598 char *buf)
599{
600 struct mrvl_mesh_defaults defs;
601 int ret;
602
603 ret = mesh_get_default_parameters(dev, &defs);
604
605 if (ret)
606 return ret;
607
608 return sysfs_emit(buf, "%d\n", defs.meshie.val.active_protocol_id);
609}
610
611/**
612 * protocol_id_store - Set function for sysfs attribute protocol_id
613 * @dev: the &struct device
614 * @attr: device attributes
615 * @buf: buffer that contains new attribute value
616 * @count: size of buffer
617 */
618static ssize_t protocol_id_store(struct device *dev,
619 struct device_attribute *attr,
620 const char *buf, size_t count)
621{
622 struct cmd_ds_mesh_config cmd;
623 struct mrvl_mesh_defaults defs;
624 struct mrvl_meshie *ie;
625 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
626 uint32_t datum;
627 int ret;
628
629 memset(&cmd, 0, sizeof(cmd));
630 ret = sscanf(buf, "%d", &datum);
631 if ((ret != 1) || (datum > 255))
632 return -EINVAL;
633
634 /* fetch all other Information Element parameters */
635 ret = mesh_get_default_parameters(dev, &defs);
636
637 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
638
639 /* transfer IE elements */
640 ie = (struct mrvl_meshie *) &cmd.data[0];
641 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
642 /* update protocol id */
643 ie->val.active_protocol_id = datum;
644
645 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
646 CMD_TYPE_MESH_SET_MESH_IE);
647 if (ret)
648 return ret;
649
650 return strlen(buf);
651}
652
653/**
654 * metric_id_show - Get function for sysfs attribute metric_id
655 * @dev: the &struct device
656 * @attr: device attributes
657 * @buf: buffer where data will be returned
658 */
659static ssize_t metric_id_show(struct device *dev,
660 struct device_attribute *attr, char *buf)
661{
662 struct mrvl_mesh_defaults defs;
663 int ret;
664
665 ret = mesh_get_default_parameters(dev, &defs);
666
667 if (ret)
668 return ret;
669
670 return sysfs_emit(buf, "%d\n", defs.meshie.val.active_metric_id);
671}
672
673/**
674 * metric_id_store - Set function for sysfs attribute metric_id
675 * @dev: the &struct device
676 * @attr: device attributes
677 * @buf: buffer that contains new attribute value
678 * @count: size of buffer
679 */
680static ssize_t metric_id_store(struct device *dev,
681 struct device_attribute *attr,
682 const char *buf, size_t count)
683{
684 struct cmd_ds_mesh_config cmd;
685 struct mrvl_mesh_defaults defs;
686 struct mrvl_meshie *ie;
687 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
688 uint32_t datum;
689 int ret;
690
691 memset(&cmd, 0, sizeof(cmd));
692 ret = sscanf(buf, "%d", &datum);
693 if ((ret != 1) || (datum > 255))
694 return -EINVAL;
695
696 /* fetch all other Information Element parameters */
697 ret = mesh_get_default_parameters(dev, &defs);
698
699 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
700
701 /* transfer IE elements */
702 ie = (struct mrvl_meshie *) &cmd.data[0];
703 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
704 /* update metric id */
705 ie->val.active_metric_id = datum;
706
707 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
708 CMD_TYPE_MESH_SET_MESH_IE);
709 if (ret)
710 return ret;
711
712 return strlen(buf);
713}
714
715/**
716 * capability_show - Get function for sysfs attribute capability
717 * @dev: the &struct device
718 * @attr: device attributes
719 * @buf: buffer where data will be returned
720 */
721static ssize_t capability_show(struct device *dev,
722 struct device_attribute *attr, char *buf)
723{
724 struct mrvl_mesh_defaults defs;
725 int ret;
726
727 ret = mesh_get_default_parameters(dev, &defs);
728
729 if (ret)
730 return ret;
731
732 return sysfs_emit(buf, "%d\n", defs.meshie.val.mesh_capability);
733}
734
735/**
736 * capability_store - Set function for sysfs attribute capability
737 * @dev: the &struct device
738 * @attr: device attributes
739 * @buf: buffer that contains new attribute value
740 * @count: size of buffer
741 */
742static ssize_t capability_store(struct device *dev,
743 struct device_attribute *attr,
744 const char *buf, size_t count)
745{
746 struct cmd_ds_mesh_config cmd;
747 struct mrvl_mesh_defaults defs;
748 struct mrvl_meshie *ie;
749 struct lbs_private *priv = to_net_dev(dev)->ml_priv;
750 uint32_t datum;
751 int ret;
752
753 memset(&cmd, 0, sizeof(cmd));
754 ret = sscanf(buf, "%d", &datum);
755 if ((ret != 1) || (datum > 255))
756 return -EINVAL;
757
758 /* fetch all other Information Element parameters */
759 ret = mesh_get_default_parameters(dev, &defs);
760
761 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
762
763 /* transfer IE elements */
764 ie = (struct mrvl_meshie *) &cmd.data[0];
765 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
766 /* update value */
767 ie->val.mesh_capability = datum;
768
769 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
770 CMD_TYPE_MESH_SET_MESH_IE);
771 if (ret)
772 return ret;
773
774 return strlen(buf);
775}
776
777
778static DEVICE_ATTR_RW(bootflag);
779static DEVICE_ATTR_RW(boottime);
780static DEVICE_ATTR_RW(channel);
781static DEVICE_ATTR_RW(mesh_id);
782static DEVICE_ATTR_RW(protocol_id);
783static DEVICE_ATTR_RW(metric_id);
784static DEVICE_ATTR_RW(capability);
785
786static struct attribute *boot_opts_attrs[] = {
787 &dev_attr_bootflag.attr,
788 &dev_attr_boottime.attr,
789 &dev_attr_channel.attr,
790 NULL
791};
792
793static const struct attribute_group boot_opts_group = {
794 .name = "boot_options",
795 .attrs = boot_opts_attrs,
796};
797
798static struct attribute *mesh_ie_attrs[] = {
799 &dev_attr_mesh_id.attr,
800 &dev_attr_protocol_id.attr,
801 &dev_attr_metric_id.attr,
802 &dev_attr_capability.attr,
803 NULL
804};
805
806static const struct attribute_group mesh_ie_group = {
807 .name = "mesh_ie",
808 .attrs = mesh_ie_attrs,
809};
810
811
812/***************************************************************************
813 * Initializing and starting, stopping mesh
814 */
815
816/*
817 * Check mesh FW version and appropriately send the mesh start
818 * command
819 */
820void lbs_init_mesh(struct lbs_private *priv)
821{
822 /* Determine mesh_fw_ver from fwrelease and fwcapinfo */
823 /* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
824 /* 5.110.22 have mesh command with 0xa3 command id */
825 /* 10.0.0.p0 FW brings in mesh config command with different id */
826 /* Check FW version MSB and initialize mesh_fw_ver */
827 if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) {
828 /* Enable mesh, if supported, and work out which TLV it uses.
829 0x100 + 291 is an unofficial value used in 5.110.20.pXX
830 0x100 + 37 is the official value used in 5.110.21.pXX
831 but we check them in that order because 20.pXX doesn't
832 give an error -- it just silently fails. */
833
834 /* 5.110.20.pXX firmware will fail the command if the channel
835 doesn't match the existing channel. But only if the TLV
836 is correct. If the channel is wrong, _BOTH_ versions will
837 give an error to 0x100+291, and allow 0x100+37 to succeed.
838 It's just that 5.110.20.pXX will not have done anything
839 useful */
840
841 priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
842 if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) {
843 priv->mesh_tlv = TLV_TYPE_MESH_ID;
844 if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
845 priv->mesh_tlv = 0;
846 }
847 } else
848 if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
849 (priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) {
850 /* 10.0.0.pXX new firmwares should succeed with TLV
851 * 0x100+37; Do not invoke command with old TLV.
852 */
853 priv->mesh_tlv = TLV_TYPE_MESH_ID;
854 if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
855 priv->mesh_tlv = 0;
856 }
857
858 /* Stop meshing until interface is brought up */
859 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, 1);
860}
861
862void lbs_start_mesh(struct lbs_private *priv)
863{
864 lbs_add_mesh(priv);
865
866 if (device_create_file(&priv->dev->dev, &dev_attr_lbs_mesh))
867 netdev_err(priv->dev, "cannot register lbs_mesh attribute\n");
868}
869
870int lbs_deinit_mesh(struct lbs_private *priv)
871{
872 struct net_device *dev = priv->dev;
873 int ret = 0;
874
875 if (priv->mesh_tlv) {
876 device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
877 ret = 1;
878 }
879
880 return ret;
881}
882
883
884/**
885 * lbs_mesh_stop - close the mshX interface
886 *
887 * @dev: A pointer to &net_device structure
888 * returns: 0
889 */
890static int lbs_mesh_stop(struct net_device *dev)
891{
892 struct lbs_private *priv = dev->ml_priv;
893
894 lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
895 lbs_mesh_get_channel(priv));
896
897 spin_lock_irq(&priv->driver_lock);
898
899 netif_stop_queue(dev);
900 netif_carrier_off(dev);
901
902 spin_unlock_irq(&priv->driver_lock);
903
904 lbs_update_mcast(priv);
905 if (!lbs_iface_active(priv))
906 lbs_stop_iface(priv);
907
908 return 0;
909}
910
911/**
912 * lbs_mesh_dev_open - open the mshX interface
913 *
914 * @dev: A pointer to &net_device structure
915 * returns: 0 or -EBUSY if monitor mode active
916 */
917static int lbs_mesh_dev_open(struct net_device *dev)
918{
919 struct lbs_private *priv = dev->ml_priv;
920 int ret = 0;
921
922 if (!priv->iface_running) {
923 ret = lbs_start_iface(priv);
924 if (ret)
925 goto out;
926 }
927
928 spin_lock_irq(&priv->driver_lock);
929
930 if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
931 ret = -EBUSY;
932 spin_unlock_irq(&priv->driver_lock);
933 goto out;
934 }
935
936 netif_carrier_on(dev);
937
938 if (!priv->tx_pending_len)
939 netif_wake_queue(dev);
940
941 spin_unlock_irq(&priv->driver_lock);
942
943 ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
944 lbs_mesh_get_channel(priv));
945
946out:
947 return ret;
948}
949
950static const struct net_device_ops mesh_netdev_ops = {
951 .ndo_open = lbs_mesh_dev_open,
952 .ndo_stop = lbs_mesh_stop,
953 .ndo_start_xmit = lbs_hard_start_xmit,
954 .ndo_set_mac_address = lbs_set_mac_address,
955 .ndo_set_rx_mode = lbs_set_multicast_list,
956};
957
958/**
959 * lbs_add_mesh - add mshX interface
960 *
961 * @priv: A pointer to the &struct lbs_private structure
962 * returns: 0 if successful, -X otherwise
963 */
964static int lbs_add_mesh(struct lbs_private *priv)
965{
966 struct net_device *mesh_dev = NULL;
967 struct wireless_dev *mesh_wdev;
968 int ret = 0;
969
970 /* Allocate a virtual mesh device */
971 mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
972 if (!mesh_wdev) {
973 lbs_deb_mesh("init mshX wireless device failed\n");
974 ret = -ENOMEM;
975 goto done;
976 }
977
978 mesh_dev = alloc_netdev(0, "msh%d", NET_NAME_UNKNOWN, ether_setup);
979 if (!mesh_dev) {
980 lbs_deb_mesh("init mshX device failed\n");
981 ret = -ENOMEM;
982 goto err_free_wdev;
983 }
984
985 mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT;
986 mesh_wdev->wiphy = priv->wdev->wiphy;
987
988 if (priv->mesh_tlv) {
989 sprintf(mesh_wdev->u.mesh.id, "mesh");
990 mesh_wdev->u.mesh.id_up_len = 4;
991 }
992
993 mesh_wdev->netdev = mesh_dev;
994
995 mesh_dev->ml_priv = priv;
996 mesh_dev->ieee80211_ptr = mesh_wdev;
997 priv->mesh_dev = mesh_dev;
998
999 mesh_dev->netdev_ops = &mesh_netdev_ops;
1000 mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1001 eth_hw_addr_inherit(mesh_dev, priv->dev);
1002
1003 SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
1004
1005 mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1006 mesh_dev->sysfs_groups[0] = &lbs_mesh_attr_group;
1007 mesh_dev->sysfs_groups[1] = &boot_opts_group;
1008 mesh_dev->sysfs_groups[2] = &mesh_ie_group;
1009
1010 /* Register virtual mesh interface */
1011 ret = register_netdev(mesh_dev);
1012 if (ret) {
1013 pr_err("cannot register mshX virtual interface\n");
1014 goto err_free_netdev;
1015 }
1016
1017 /* Everything successful */
1018 ret = 0;
1019 goto done;
1020
1021err_free_netdev:
1022 free_netdev(mesh_dev);
1023
1024err_free_wdev:
1025 kfree(mesh_wdev);
1026
1027done:
1028 return ret;
1029}
1030
1031void lbs_remove_mesh(struct lbs_private *priv)
1032{
1033 struct net_device *mesh_dev;
1034
1035 mesh_dev = priv->mesh_dev;
1036 if (!mesh_dev)
1037 return;
1038
1039 netif_stop_queue(mesh_dev);
1040 netif_carrier_off(mesh_dev);
1041 unregister_netdev(mesh_dev);
1042 priv->mesh_dev = NULL;
1043 kfree(mesh_dev->ieee80211_ptr);
1044 free_netdev(mesh_dev);
1045}
1046
1047
1048/***************************************************************************
1049 * Sending and receiving
1050 */
1051struct net_device *lbs_mesh_set_dev(struct lbs_private *priv,
1052 struct net_device *dev, struct rxpd *rxpd)
1053{
1054 if (priv->mesh_dev) {
1055 if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) {
1056 if (rxpd->rx_control & RxPD_MESH_FRAME)
1057 dev = priv->mesh_dev;
1058 } else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) {
1059 if (rxpd->u.bss.bss_num == MESH_IFACE_ID)
1060 dev = priv->mesh_dev;
1061 }
1062 }
1063 return dev;
1064}
1065
1066
1067void lbs_mesh_set_txpd(struct lbs_private *priv,
1068 struct net_device *dev, struct txpd *txpd)
1069{
1070 if (dev == priv->mesh_dev) {
1071 if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID)
1072 txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
1073 else if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
1074 txpd->u.bss.bss_num = MESH_IFACE_ID;
1075 }
1076}
1077
1078
1079/***************************************************************************
1080 * Ethtool related
1081 */
1082
1083static const char mesh_stat_strings[MESH_STATS_NUM][ETH_GSTRING_LEN] = {
1084 "drop_duplicate_bcast",
1085 "drop_ttl_zero",
1086 "drop_no_fwd_route",
1087 "drop_no_buffers",
1088 "fwded_unicast_cnt",
1089 "fwded_bcast_cnt",
1090 "drop_blind_table",
1091 "tx_failed_cnt"
1092};
1093
1094void lbs_mesh_ethtool_get_stats(struct net_device *dev,
1095 struct ethtool_stats *stats, uint64_t *data)
1096{
1097 struct lbs_private *priv = dev->ml_priv;
1098 struct cmd_ds_mesh_access mesh_access;
1099 int ret;
1100
1101 /* Get Mesh Statistics */
1102 ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_STATS, &mesh_access);
1103
1104 if (ret) {
1105 memset(data, 0, MESH_STATS_NUM*(sizeof(uint64_t)));
1106 return;
1107 }
1108
1109 priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]);
1110 priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]);
1111 priv->mstats.fwd_drop_noroute = le32_to_cpu(mesh_access.data[2]);
1112 priv->mstats.fwd_drop_nobuf = le32_to_cpu(mesh_access.data[3]);
1113 priv->mstats.fwd_unicast_cnt = le32_to_cpu(mesh_access.data[4]);
1114 priv->mstats.fwd_bcast_cnt = le32_to_cpu(mesh_access.data[5]);
1115 priv->mstats.drop_blind = le32_to_cpu(mesh_access.data[6]);
1116 priv->mstats.tx_failed_cnt = le32_to_cpu(mesh_access.data[7]);
1117
1118 data[0] = priv->mstats.fwd_drop_rbt;
1119 data[1] = priv->mstats.fwd_drop_ttl;
1120 data[2] = priv->mstats.fwd_drop_noroute;
1121 data[3] = priv->mstats.fwd_drop_nobuf;
1122 data[4] = priv->mstats.fwd_unicast_cnt;
1123 data[5] = priv->mstats.fwd_bcast_cnt;
1124 data[6] = priv->mstats.drop_blind;
1125 data[7] = priv->mstats.tx_failed_cnt;
1126}
1127
1128int lbs_mesh_ethtool_get_sset_count(struct net_device *dev, int sset)
1129{
1130 struct lbs_private *priv = dev->ml_priv;
1131
1132 if (sset == ETH_SS_STATS && dev == priv->mesh_dev)
1133 return MESH_STATS_NUM;
1134
1135 return -EOPNOTSUPP;
1136}
1137
1138void lbs_mesh_ethtool_get_strings(struct net_device *dev,
1139 uint32_t stringset, uint8_t *s)
1140{
1141 switch (stringset) {
1142 case ETH_SS_STATS:
1143 memcpy(s, mesh_stat_strings, sizeof(mesh_stat_strings));
1144 break;
1145 }
1146}