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1 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
2 
3 #include <linux/delay.h>
4 #include <linux/etherdevice.h>
5 #include <linux/hardirq.h>
6 #include <linux/netdevice.h>
7 #include <linux/if_ether.h>
8 #include <linux/if_arp.h>
9 #include <linux/kthread.h>
10 #include <linux/kfifo.h>
11 #include <net/cfg80211.h>
12 
13 #include "mesh.h"
14 #include "decl.h"
15 #include "cmd.h"
16 
17 
18 static int lbs_add_mesh(struct lbs_private *priv);
19 
20 /***************************************************************************
21  * Mesh command handling
22  */
23 
lbs_mesh_access(struct lbs_private * priv,uint16_t cmd_action,struct cmd_ds_mesh_access * cmd)24 static int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
25 		    struct cmd_ds_mesh_access *cmd)
26 {
27 	int ret;
28 
29 	lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
30 
31 	cmd->hdr.command = cpu_to_le16(CMD_MESH_ACCESS);
32 	cmd->hdr.size = cpu_to_le16(sizeof(*cmd));
33 	cmd->hdr.result = 0;
34 
35 	cmd->action = cpu_to_le16(cmd_action);
36 
37 	ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
38 
39 	lbs_deb_leave(LBS_DEB_CMD);
40 	return ret;
41 }
42 
__lbs_mesh_config_send(struct lbs_private * priv,struct cmd_ds_mesh_config * cmd,uint16_t action,uint16_t type)43 static int __lbs_mesh_config_send(struct lbs_private *priv,
44 				  struct cmd_ds_mesh_config *cmd,
45 				  uint16_t action, uint16_t type)
46 {
47 	int ret;
48 	u16 command = CMD_MESH_CONFIG_OLD;
49 
50 	lbs_deb_enter(LBS_DEB_CMD);
51 
52 	/*
53 	 * Command id is 0xac for v10 FW along with mesh interface
54 	 * id in bits 14-13-12.
55 	 */
56 	if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
57 		command = CMD_MESH_CONFIG |
58 			  (MESH_IFACE_ID << MESH_IFACE_BIT_OFFSET);
59 
60 	cmd->hdr.command = cpu_to_le16(command);
61 	cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_mesh_config));
62 	cmd->hdr.result = 0;
63 
64 	cmd->type = cpu_to_le16(type);
65 	cmd->action = cpu_to_le16(action);
66 
67 	ret = lbs_cmd_with_response(priv, command, cmd);
68 
69 	lbs_deb_leave(LBS_DEB_CMD);
70 	return ret;
71 }
72 
lbs_mesh_config_send(struct lbs_private * priv,struct cmd_ds_mesh_config * cmd,uint16_t action,uint16_t type)73 static int lbs_mesh_config_send(struct lbs_private *priv,
74 			 struct cmd_ds_mesh_config *cmd,
75 			 uint16_t action, uint16_t type)
76 {
77 	int ret;
78 
79 	if (!(priv->fwcapinfo & FW_CAPINFO_PERSISTENT_CONFIG))
80 		return -EOPNOTSUPP;
81 
82 	ret = __lbs_mesh_config_send(priv, cmd, action, type);
83 	return ret;
84 }
85 
86 /* This function is the CMD_MESH_CONFIG legacy function.  It only handles the
87  * START and STOP actions.  The extended actions supported by CMD_MESH_CONFIG
88  * are all handled by preparing a struct cmd_ds_mesh_config and passing it to
89  * lbs_mesh_config_send.
90  */
lbs_mesh_config(struct lbs_private * priv,uint16_t action,uint16_t chan)91 static int lbs_mesh_config(struct lbs_private *priv, uint16_t action,
92 		uint16_t chan)
93 {
94 	struct cmd_ds_mesh_config cmd;
95 	struct mrvl_meshie *ie;
96 	DECLARE_SSID_BUF(ssid);
97 
98 	memset(&cmd, 0, sizeof(cmd));
99 	cmd.channel = cpu_to_le16(chan);
100 	ie = (struct mrvl_meshie *)cmd.data;
101 
102 	switch (action) {
103 	case CMD_ACT_MESH_CONFIG_START:
104 		ie->id = WLAN_EID_GENERIC;
105 		ie->val.oui[0] = 0x00;
106 		ie->val.oui[1] = 0x50;
107 		ie->val.oui[2] = 0x43;
108 		ie->val.type = MARVELL_MESH_IE_TYPE;
109 		ie->val.subtype = MARVELL_MESH_IE_SUBTYPE;
110 		ie->val.version = MARVELL_MESH_IE_VERSION;
111 		ie->val.active_protocol_id = MARVELL_MESH_PROTO_ID_HWMP;
112 		ie->val.active_metric_id = MARVELL_MESH_METRIC_ID;
113 		ie->val.mesh_capability = MARVELL_MESH_CAPABILITY;
114 		ie->val.mesh_id_len = priv->mesh_ssid_len;
115 		memcpy(ie->val.mesh_id, priv->mesh_ssid, priv->mesh_ssid_len);
116 		ie->len = sizeof(struct mrvl_meshie_val) -
117 			IEEE80211_MAX_SSID_LEN + priv->mesh_ssid_len;
118 		cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie_val));
119 		break;
120 	case CMD_ACT_MESH_CONFIG_STOP:
121 		break;
122 	default:
123 		return -1;
124 	}
125 	lbs_deb_cmd("mesh config action %d type %x channel %d SSID %s\n",
126 		    action, priv->mesh_tlv, chan,
127 		    print_ssid(ssid, priv->mesh_ssid, priv->mesh_ssid_len));
128 
129 	return __lbs_mesh_config_send(priv, &cmd, action, priv->mesh_tlv);
130 }
131 
lbs_mesh_set_channel(struct lbs_private * priv,u8 channel)132 int lbs_mesh_set_channel(struct lbs_private *priv, u8 channel)
133 {
134 	return lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, channel);
135 }
136 
lbs_mesh_get_channel(struct lbs_private * priv)137 static uint16_t lbs_mesh_get_channel(struct lbs_private *priv)
138 {
139 	struct wireless_dev *mesh_wdev = priv->mesh_dev->ieee80211_ptr;
140 	if (mesh_wdev->channel)
141 		return mesh_wdev->channel->hw_value;
142 	else
143 		return 1;
144 }
145 
146 /***************************************************************************
147  * Mesh sysfs support
148  */
149 
150 /*
151  * Attributes exported through sysfs
152  */
153 
154 /**
155  * lbs_anycast_get - Get function for sysfs attribute anycast_mask
156  * @dev: the &struct device
157  * @attr: device attributes
158  * @buf: buffer where data will be returned
159  */
lbs_anycast_get(struct device * dev,struct device_attribute * attr,char * buf)160 static ssize_t lbs_anycast_get(struct device *dev,
161 		struct device_attribute *attr, char * buf)
162 {
163 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
164 	struct cmd_ds_mesh_access mesh_access;
165 	int ret;
166 
167 	memset(&mesh_access, 0, sizeof(mesh_access));
168 
169 	ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_ANYCAST, &mesh_access);
170 	if (ret)
171 		return ret;
172 
173 	return snprintf(buf, 12, "0x%X\n", le32_to_cpu(mesh_access.data[0]));
174 }
175 
176 /**
177  * lbs_anycast_set - Set function for sysfs attribute anycast_mask
178  * @dev: the &struct device
179  * @attr: device attributes
180  * @buf: buffer that contains new attribute value
181  * @count: size of buffer
182  */
lbs_anycast_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)183 static ssize_t lbs_anycast_set(struct device *dev,
184 		struct device_attribute *attr, 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  * lbs_prb_rsp_limit_get - 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  */
lbs_prb_rsp_limit_get(struct device * dev,struct device_attribute * attr,char * buf)208 static ssize_t lbs_prb_rsp_limit_get(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 snprintf(buf, 10, "%d\n", retry_limit);
226 }
227 
228 /**
229  * lbs_prb_rsp_limit_set - 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  */
lbs_prb_rsp_limit_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)235 static ssize_t lbs_prb_rsp_limit_set(struct device *dev,
236 		struct device_attribute *attr, const char *buf, size_t count)
237 {
238 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
239 	struct cmd_ds_mesh_access mesh_access;
240 	int ret;
241 	unsigned long retry_limit;
242 
243 	memset(&mesh_access, 0, sizeof(mesh_access));
244 	mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
245 
246 	if (!strict_strtoul(buf, 10, &retry_limit))
247 		return -ENOTSUPP;
248 	if (retry_limit > 15)
249 		return -ENOTSUPP;
250 
251 	mesh_access.data[1] = cpu_to_le32(retry_limit);
252 
253 	ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
254 			&mesh_access);
255 	if (ret)
256 		return ret;
257 
258 	return strlen(buf);
259 }
260 
261 /**
262  * lbs_mesh_get - Get function for sysfs attribute mesh
263  * @dev: the &struct device
264  * @attr: device attributes
265  * @buf: buffer where data will be returned
266  */
lbs_mesh_get(struct device * dev,struct device_attribute * attr,char * buf)267 static ssize_t lbs_mesh_get(struct device *dev,
268 		struct device_attribute *attr, char * buf)
269 {
270 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
271 	return snprintf(buf, 5, "0x%X\n", !!priv->mesh_dev);
272 }
273 
274 /**
275  * lbs_mesh_set - Set function for sysfs attribute mesh
276  * @dev: the &struct device
277  * @attr: device attributes
278  * @buf: buffer that contains new attribute value
279  * @count: size of buffer
280  */
lbs_mesh_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)281 static ssize_t lbs_mesh_set(struct device *dev,
282 		struct device_attribute *attr, const char * buf, size_t count)
283 {
284 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
285 	int enable;
286 
287 	sscanf(buf, "%x", &enable);
288 	enable = !!enable;
289 	if (enable == !!priv->mesh_dev)
290 		return count;
291 
292 	if (enable)
293 		lbs_add_mesh(priv);
294 	else
295 		lbs_remove_mesh(priv);
296 
297 	return count;
298 }
299 
300 /*
301  * lbs_mesh attribute to be exported per ethX interface
302  * through sysfs (/sys/class/net/ethX/lbs_mesh)
303  */
304 static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set);
305 
306 /*
307  * anycast_mask attribute to be exported per mshX interface
308  * through sysfs (/sys/class/net/mshX/anycast_mask)
309  */
310 static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
311 
312 /*
313  * prb_rsp_limit attribute to be exported per mshX interface
314  * through sysfs (/sys/class/net/mshX/prb_rsp_limit)
315  */
316 static DEVICE_ATTR(prb_rsp_limit, 0644, lbs_prb_rsp_limit_get,
317 		lbs_prb_rsp_limit_set);
318 
319 static struct attribute *lbs_mesh_sysfs_entries[] = {
320 	&dev_attr_anycast_mask.attr,
321 	&dev_attr_prb_rsp_limit.attr,
322 	NULL,
323 };
324 
325 static const struct attribute_group lbs_mesh_attr_group = {
326 	.attrs = lbs_mesh_sysfs_entries,
327 };
328 
329 
330 /***************************************************************************
331  * Persistent configuration support
332  */
333 
mesh_get_default_parameters(struct device * dev,struct mrvl_mesh_defaults * defs)334 static int mesh_get_default_parameters(struct device *dev,
335 				       struct mrvl_mesh_defaults *defs)
336 {
337 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
338 	struct cmd_ds_mesh_config cmd;
339 	int ret;
340 
341 	memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
342 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_GET,
343 				   CMD_TYPE_MESH_GET_DEFAULTS);
344 
345 	if (ret)
346 		return -EOPNOTSUPP;
347 
348 	memcpy(defs, &cmd.data[0], sizeof(struct mrvl_mesh_defaults));
349 
350 	return 0;
351 }
352 
353 /**
354  * bootflag_get - Get function for sysfs attribute bootflag
355  * @dev: the &struct device
356  * @attr: device attributes
357  * @buf: buffer where data will be returned
358  */
bootflag_get(struct device * dev,struct device_attribute * attr,char * buf)359 static ssize_t bootflag_get(struct device *dev,
360 			    struct device_attribute *attr, char *buf)
361 {
362 	struct mrvl_mesh_defaults defs;
363 	int ret;
364 
365 	ret = mesh_get_default_parameters(dev, &defs);
366 
367 	if (ret)
368 		return ret;
369 
370 	return snprintf(buf, 12, "%d\n", le32_to_cpu(defs.bootflag));
371 }
372 
373 /**
374  * bootflag_set - Set function for sysfs attribute bootflag
375  * @dev: the &struct device
376  * @attr: device attributes
377  * @buf: buffer that contains new attribute value
378  * @count: size of buffer
379  */
bootflag_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)380 static ssize_t bootflag_set(struct device *dev, struct device_attribute *attr,
381 			    const char *buf, size_t count)
382 {
383 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
384 	struct cmd_ds_mesh_config cmd;
385 	uint32_t datum;
386 	int ret;
387 
388 	memset(&cmd, 0, sizeof(cmd));
389 	ret = sscanf(buf, "%d", &datum);
390 	if ((ret != 1) || (datum > 1))
391 		return -EINVAL;
392 
393 	*((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum);
394 	cmd.length = cpu_to_le16(sizeof(uint32_t));
395 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
396 				   CMD_TYPE_MESH_SET_BOOTFLAG);
397 	if (ret)
398 		return ret;
399 
400 	return strlen(buf);
401 }
402 
403 /**
404  * boottime_get - Get function for sysfs attribute boottime
405  * @dev: the &struct device
406  * @attr: device attributes
407  * @buf: buffer where data will be returned
408  */
boottime_get(struct device * dev,struct device_attribute * attr,char * buf)409 static ssize_t boottime_get(struct device *dev,
410 			    struct device_attribute *attr, char *buf)
411 {
412 	struct mrvl_mesh_defaults defs;
413 	int ret;
414 
415 	ret = mesh_get_default_parameters(dev, &defs);
416 
417 	if (ret)
418 		return ret;
419 
420 	return snprintf(buf, 12, "%d\n", defs.boottime);
421 }
422 
423 /**
424  * boottime_set - Set function for sysfs attribute boottime
425  * @dev: the &struct device
426  * @attr: device attributes
427  * @buf: buffer that contains new attribute value
428  * @count: size of buffer
429  */
boottime_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)430 static ssize_t boottime_set(struct device *dev,
431 		struct device_attribute *attr, const char *buf, size_t count)
432 {
433 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
434 	struct cmd_ds_mesh_config cmd;
435 	uint32_t datum;
436 	int ret;
437 
438 	memset(&cmd, 0, sizeof(cmd));
439 	ret = sscanf(buf, "%d", &datum);
440 	if ((ret != 1) || (datum > 255))
441 		return -EINVAL;
442 
443 	/* A too small boot time will result in the device booting into
444 	 * standalone (no-host) mode before the host can take control of it,
445 	 * so the change will be hard to revert.  This may be a desired
446 	 * feature (e.g to configure a very fast boot time for devices that
447 	 * will not be attached to a host), but dangerous.  So I'm enforcing a
448 	 * lower limit of 20 seconds:  remove and recompile the driver if this
449 	 * does not work for you.
450 	 */
451 	datum = (datum < 20) ? 20 : datum;
452 	cmd.data[0] = datum;
453 	cmd.length = cpu_to_le16(sizeof(uint8_t));
454 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
455 				   CMD_TYPE_MESH_SET_BOOTTIME);
456 	if (ret)
457 		return ret;
458 
459 	return strlen(buf);
460 }
461 
462 /**
463  * channel_get - Get function for sysfs attribute channel
464  * @dev: the &struct device
465  * @attr: device attributes
466  * @buf: buffer where data will be returned
467  */
channel_get(struct device * dev,struct device_attribute * attr,char * buf)468 static ssize_t channel_get(struct device *dev,
469 			   struct device_attribute *attr, char *buf)
470 {
471 	struct mrvl_mesh_defaults defs;
472 	int ret;
473 
474 	ret = mesh_get_default_parameters(dev, &defs);
475 
476 	if (ret)
477 		return ret;
478 
479 	return snprintf(buf, 12, "%d\n", le16_to_cpu(defs.channel));
480 }
481 
482 /**
483  * channel_set - Set function for sysfs attribute channel
484  * @dev: the &struct device
485  * @attr: device attributes
486  * @buf: buffer that contains new attribute value
487  * @count: size of buffer
488  */
channel_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)489 static ssize_t channel_set(struct device *dev, struct device_attribute *attr,
490 			   const char *buf, size_t count)
491 {
492 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
493 	struct cmd_ds_mesh_config cmd;
494 	uint32_t datum;
495 	int ret;
496 
497 	memset(&cmd, 0, sizeof(cmd));
498 	ret = sscanf(buf, "%d", &datum);
499 	if (ret != 1 || datum < 1 || datum > 11)
500 		return -EINVAL;
501 
502 	*((__le16 *)&cmd.data[0]) = cpu_to_le16(datum);
503 	cmd.length = cpu_to_le16(sizeof(uint16_t));
504 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
505 				   CMD_TYPE_MESH_SET_DEF_CHANNEL);
506 	if (ret)
507 		return ret;
508 
509 	return strlen(buf);
510 }
511 
512 /**
513  * mesh_id_get - Get function for sysfs attribute mesh_id
514  * @dev: the &struct device
515  * @attr: device attributes
516  * @buf: buffer where data will be returned
517  */
mesh_id_get(struct device * dev,struct device_attribute * attr,char * buf)518 static ssize_t mesh_id_get(struct device *dev, struct device_attribute *attr,
519 			   char *buf)
520 {
521 	struct mrvl_mesh_defaults defs;
522 	int ret;
523 
524 	ret = mesh_get_default_parameters(dev, &defs);
525 
526 	if (ret)
527 		return ret;
528 
529 	if (defs.meshie.val.mesh_id_len > IEEE80211_MAX_SSID_LEN) {
530 		dev_err(dev, "inconsistent mesh ID length\n");
531 		defs.meshie.val.mesh_id_len = IEEE80211_MAX_SSID_LEN;
532 	}
533 
534 	memcpy(buf, defs.meshie.val.mesh_id, defs.meshie.val.mesh_id_len);
535 	buf[defs.meshie.val.mesh_id_len] = '\n';
536 	buf[defs.meshie.val.mesh_id_len + 1] = '\0';
537 
538 	return defs.meshie.val.mesh_id_len + 1;
539 }
540 
541 /**
542  * mesh_id_set - Set function for sysfs attribute mesh_id
543  * @dev: the &struct device
544  * @attr: device attributes
545  * @buf: buffer that contains new attribute value
546  * @count: size of buffer
547  */
mesh_id_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)548 static ssize_t mesh_id_set(struct device *dev, struct device_attribute *attr,
549 			   const char *buf, size_t count)
550 {
551 	struct cmd_ds_mesh_config cmd;
552 	struct mrvl_mesh_defaults defs;
553 	struct mrvl_meshie *ie;
554 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
555 	int len;
556 	int ret;
557 
558 	if (count < 2 || count > IEEE80211_MAX_SSID_LEN + 1)
559 		return -EINVAL;
560 
561 	memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
562 	ie = (struct mrvl_meshie *) &cmd.data[0];
563 
564 	/* fetch all other Information Element parameters */
565 	ret = mesh_get_default_parameters(dev, &defs);
566 
567 	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
568 
569 	/* transfer IE elements */
570 	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
571 
572 	len = count - 1;
573 	memcpy(ie->val.mesh_id, buf, len);
574 	/* SSID len */
575 	ie->val.mesh_id_len = len;
576 	/* IE len */
577 	ie->len = sizeof(struct mrvl_meshie_val) - IEEE80211_MAX_SSID_LEN + len;
578 
579 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
580 				   CMD_TYPE_MESH_SET_MESH_IE);
581 	if (ret)
582 		return ret;
583 
584 	return strlen(buf);
585 }
586 
587 /**
588  * protocol_id_get - Get function for sysfs attribute protocol_id
589  * @dev: the &struct device
590  * @attr: device attributes
591  * @buf: buffer where data will be returned
592  */
protocol_id_get(struct device * dev,struct device_attribute * attr,char * buf)593 static ssize_t protocol_id_get(struct device *dev,
594 			       struct device_attribute *attr, char *buf)
595 {
596 	struct mrvl_mesh_defaults defs;
597 	int ret;
598 
599 	ret = mesh_get_default_parameters(dev, &defs);
600 
601 	if (ret)
602 		return ret;
603 
604 	return snprintf(buf, 5, "%d\n", defs.meshie.val.active_protocol_id);
605 }
606 
607 /**
608  * protocol_id_set - Set function for sysfs attribute protocol_id
609  * @dev: the &struct device
610  * @attr: device attributes
611  * @buf: buffer that contains new attribute value
612  * @count: size of buffer
613  */
protocol_id_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)614 static ssize_t protocol_id_set(struct device *dev,
615 		struct device_attribute *attr, const char *buf, size_t count)
616 {
617 	struct cmd_ds_mesh_config cmd;
618 	struct mrvl_mesh_defaults defs;
619 	struct mrvl_meshie *ie;
620 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
621 	uint32_t datum;
622 	int ret;
623 
624 	memset(&cmd, 0, sizeof(cmd));
625 	ret = sscanf(buf, "%d", &datum);
626 	if ((ret != 1) || (datum > 255))
627 		return -EINVAL;
628 
629 	/* fetch all other Information Element parameters */
630 	ret = mesh_get_default_parameters(dev, &defs);
631 
632 	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
633 
634 	/* transfer IE elements */
635 	ie = (struct mrvl_meshie *) &cmd.data[0];
636 	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
637 	/* update protocol id */
638 	ie->val.active_protocol_id = datum;
639 
640 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
641 				   CMD_TYPE_MESH_SET_MESH_IE);
642 	if (ret)
643 		return ret;
644 
645 	return strlen(buf);
646 }
647 
648 /**
649  * metric_id_get - Get function for sysfs attribute metric_id
650  * @dev: the &struct device
651  * @attr: device attributes
652  * @buf: buffer where data will be returned
653  */
metric_id_get(struct device * dev,struct device_attribute * attr,char * buf)654 static ssize_t metric_id_get(struct device *dev,
655 		struct device_attribute *attr, char *buf)
656 {
657 	struct mrvl_mesh_defaults defs;
658 	int ret;
659 
660 	ret = mesh_get_default_parameters(dev, &defs);
661 
662 	if (ret)
663 		return ret;
664 
665 	return snprintf(buf, 5, "%d\n", defs.meshie.val.active_metric_id);
666 }
667 
668 /**
669  * metric_id_set - Set function for sysfs attribute metric_id
670  * @dev: the &struct device
671  * @attr: device attributes
672  * @buf: buffer that contains new attribute value
673  * @count: size of buffer
674  */
metric_id_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)675 static ssize_t metric_id_set(struct device *dev, struct device_attribute *attr,
676 			     const char *buf, size_t count)
677 {
678 	struct cmd_ds_mesh_config cmd;
679 	struct mrvl_mesh_defaults defs;
680 	struct mrvl_meshie *ie;
681 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
682 	uint32_t datum;
683 	int ret;
684 
685 	memset(&cmd, 0, sizeof(cmd));
686 	ret = sscanf(buf, "%d", &datum);
687 	if ((ret != 1) || (datum > 255))
688 		return -EINVAL;
689 
690 	/* fetch all other Information Element parameters */
691 	ret = mesh_get_default_parameters(dev, &defs);
692 
693 	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
694 
695 	/* transfer IE elements */
696 	ie = (struct mrvl_meshie *) &cmd.data[0];
697 	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
698 	/* update metric id */
699 	ie->val.active_metric_id = datum;
700 
701 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
702 				   CMD_TYPE_MESH_SET_MESH_IE);
703 	if (ret)
704 		return ret;
705 
706 	return strlen(buf);
707 }
708 
709 /**
710  * capability_get - Get function for sysfs attribute capability
711  * @dev: the &struct device
712  * @attr: device attributes
713  * @buf: buffer where data will be returned
714  */
capability_get(struct device * dev,struct device_attribute * attr,char * buf)715 static ssize_t capability_get(struct device *dev,
716 		struct device_attribute *attr, char *buf)
717 {
718 	struct mrvl_mesh_defaults defs;
719 	int ret;
720 
721 	ret = mesh_get_default_parameters(dev, &defs);
722 
723 	if (ret)
724 		return ret;
725 
726 	return snprintf(buf, 5, "%d\n", defs.meshie.val.mesh_capability);
727 }
728 
729 /**
730  * capability_set - Set function for sysfs attribute capability
731  * @dev: the &struct device
732  * @attr: device attributes
733  * @buf: buffer that contains new attribute value
734  * @count: size of buffer
735  */
capability_set(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)736 static ssize_t capability_set(struct device *dev, struct device_attribute *attr,
737 			      const char *buf, size_t count)
738 {
739 	struct cmd_ds_mesh_config cmd;
740 	struct mrvl_mesh_defaults defs;
741 	struct mrvl_meshie *ie;
742 	struct lbs_private *priv = to_net_dev(dev)->ml_priv;
743 	uint32_t datum;
744 	int ret;
745 
746 	memset(&cmd, 0, sizeof(cmd));
747 	ret = sscanf(buf, "%d", &datum);
748 	if ((ret != 1) || (datum > 255))
749 		return -EINVAL;
750 
751 	/* fetch all other Information Element parameters */
752 	ret = mesh_get_default_parameters(dev, &defs);
753 
754 	cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
755 
756 	/* transfer IE elements */
757 	ie = (struct mrvl_meshie *) &cmd.data[0];
758 	memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
759 	/* update value */
760 	ie->val.mesh_capability = datum;
761 
762 	ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
763 				   CMD_TYPE_MESH_SET_MESH_IE);
764 	if (ret)
765 		return ret;
766 
767 	return strlen(buf);
768 }
769 
770 
771 static DEVICE_ATTR(bootflag, 0644, bootflag_get, bootflag_set);
772 static DEVICE_ATTR(boottime, 0644, boottime_get, boottime_set);
773 static DEVICE_ATTR(channel, 0644, channel_get, channel_set);
774 static DEVICE_ATTR(mesh_id, 0644, mesh_id_get, mesh_id_set);
775 static DEVICE_ATTR(protocol_id, 0644, protocol_id_get, protocol_id_set);
776 static DEVICE_ATTR(metric_id, 0644, metric_id_get, metric_id_set);
777 static DEVICE_ATTR(capability, 0644, capability_get, capability_set);
778 
779 static struct attribute *boot_opts_attrs[] = {
780 	&dev_attr_bootflag.attr,
781 	&dev_attr_boottime.attr,
782 	&dev_attr_channel.attr,
783 	NULL
784 };
785 
786 static const struct attribute_group boot_opts_group = {
787 	.name = "boot_options",
788 	.attrs = boot_opts_attrs,
789 };
790 
791 static struct attribute *mesh_ie_attrs[] = {
792 	&dev_attr_mesh_id.attr,
793 	&dev_attr_protocol_id.attr,
794 	&dev_attr_metric_id.attr,
795 	&dev_attr_capability.attr,
796 	NULL
797 };
798 
799 static const struct attribute_group mesh_ie_group = {
800 	.name = "mesh_ie",
801 	.attrs = mesh_ie_attrs,
802 };
803 
lbs_persist_config_init(struct net_device * dev)804 static void lbs_persist_config_init(struct net_device *dev)
805 {
806 	int ret;
807 	ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
808 	ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
809 }
810 
lbs_persist_config_remove(struct net_device * dev)811 static void lbs_persist_config_remove(struct net_device *dev)
812 {
813 	sysfs_remove_group(&(dev->dev.kobj), &boot_opts_group);
814 	sysfs_remove_group(&(dev->dev.kobj), &mesh_ie_group);
815 }
816 
817 
818 /***************************************************************************
819  * Initializing and starting, stopping mesh
820  */
821 
822 /*
823  * Check mesh FW version and appropriately send the mesh start
824  * command
825  */
lbs_init_mesh(struct lbs_private * priv)826 int lbs_init_mesh(struct lbs_private *priv)
827 {
828 	int ret = 0;
829 
830 	lbs_deb_enter(LBS_DEB_MESH);
831 
832 	/* Determine mesh_fw_ver from fwrelease and fwcapinfo */
833 	/* 5.0.16p0 9.0.0.p0 is known to NOT support any mesh */
834 	/* 5.110.22 have mesh command with 0xa3 command id */
835 	/* 10.0.0.p0 FW brings in mesh config command with different id */
836 	/* Check FW version MSB and initialize mesh_fw_ver */
837 	if (MRVL_FW_MAJOR_REV(priv->fwrelease) == MRVL_FW_V5) {
838 		/* Enable mesh, if supported, and work out which TLV it uses.
839 		   0x100 + 291 is an unofficial value used in 5.110.20.pXX
840 		   0x100 + 37 is the official value used in 5.110.21.pXX
841 		   but we check them in that order because 20.pXX doesn't
842 		   give an error -- it just silently fails. */
843 
844 		/* 5.110.20.pXX firmware will fail the command if the channel
845 		   doesn't match the existing channel. But only if the TLV
846 		   is correct. If the channel is wrong, _BOTH_ versions will
847 		   give an error to 0x100+291, and allow 0x100+37 to succeed.
848 		   It's just that 5.110.20.pXX will not have done anything
849 		   useful */
850 
851 		priv->mesh_tlv = TLV_TYPE_OLD_MESH_ID;
852 		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1)) {
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 	} else
858 	if ((MRVL_FW_MAJOR_REV(priv->fwrelease) >= MRVL_FW_V10) &&
859 		(priv->fwcapinfo & MESH_CAPINFO_ENABLE_MASK)) {
860 		/* 10.0.0.pXX new firmwares should succeed with TLV
861 		 * 0x100+37; Do not invoke command with old TLV.
862 		 */
863 		priv->mesh_tlv = TLV_TYPE_MESH_ID;
864 		if (lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START, 1))
865 			priv->mesh_tlv = 0;
866 	}
867 
868 	/* Stop meshing until interface is brought up */
869 	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP, 1);
870 
871 	if (priv->mesh_tlv) {
872 		sprintf(priv->mesh_ssid, "mesh");
873 		priv->mesh_ssid_len = 4;
874 		ret = 1;
875 	}
876 
877 	lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
878 	return ret;
879 }
880 
lbs_start_mesh(struct lbs_private * priv)881 void lbs_start_mesh(struct lbs_private *priv)
882 {
883 	lbs_add_mesh(priv);
884 
885 	if (device_create_file(&priv->dev->dev, &dev_attr_lbs_mesh))
886 		netdev_err(priv->dev, "cannot register lbs_mesh attribute\n");
887 }
888 
lbs_deinit_mesh(struct lbs_private * priv)889 int lbs_deinit_mesh(struct lbs_private *priv)
890 {
891 	struct net_device *dev = priv->dev;
892 	int ret = 0;
893 
894 	lbs_deb_enter(LBS_DEB_MESH);
895 
896 	if (priv->mesh_tlv) {
897 		device_remove_file(&dev->dev, &dev_attr_lbs_mesh);
898 		ret = 1;
899 	}
900 
901 	lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
902 	return ret;
903 }
904 
905 
906 /**
907  * lbs_mesh_stop - close the mshX interface
908  *
909  * @dev:	A pointer to &net_device structure
910  * returns:	0
911  */
lbs_mesh_stop(struct net_device * dev)912 static int lbs_mesh_stop(struct net_device *dev)
913 {
914 	struct lbs_private *priv = dev->ml_priv;
915 
916 	lbs_deb_enter(LBS_DEB_MESH);
917 	lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_STOP,
918 		lbs_mesh_get_channel(priv));
919 
920 	spin_lock_irq(&priv->driver_lock);
921 
922 	netif_stop_queue(dev);
923 	netif_carrier_off(dev);
924 
925 	spin_unlock_irq(&priv->driver_lock);
926 
927 	lbs_update_mcast(priv);
928 	if (!lbs_iface_active(priv))
929 		lbs_stop_iface(priv);
930 
931 	lbs_deb_leave(LBS_DEB_MESH);
932 	return 0;
933 }
934 
935 /**
936  * lbs_mesh_dev_open - open the mshX interface
937  *
938  * @dev:	A pointer to &net_device structure
939  * returns:	0 or -EBUSY if monitor mode active
940  */
lbs_mesh_dev_open(struct net_device * dev)941 static int lbs_mesh_dev_open(struct net_device *dev)
942 {
943 	struct lbs_private *priv = dev->ml_priv;
944 	int ret = 0;
945 
946 	lbs_deb_enter(LBS_DEB_NET);
947 	if (!priv->iface_running) {
948 		ret = lbs_start_iface(priv);
949 		if (ret)
950 			goto out;
951 	}
952 
953 	spin_lock_irq(&priv->driver_lock);
954 
955 	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
956 		ret = -EBUSY;
957 		spin_unlock_irq(&priv->driver_lock);
958 		goto out;
959 	}
960 
961 	netif_carrier_on(dev);
962 
963 	if (!priv->tx_pending_len)
964 		netif_wake_queue(dev);
965 
966 	spin_unlock_irq(&priv->driver_lock);
967 
968 	ret = lbs_mesh_config(priv, CMD_ACT_MESH_CONFIG_START,
969 		lbs_mesh_get_channel(priv));
970 
971 out:
972 	lbs_deb_leave_args(LBS_DEB_NET, "ret %d", ret);
973 	return ret;
974 }
975 
976 static const struct net_device_ops mesh_netdev_ops = {
977 	.ndo_open		= lbs_mesh_dev_open,
978 	.ndo_stop 		= lbs_mesh_stop,
979 	.ndo_start_xmit		= lbs_hard_start_xmit,
980 	.ndo_set_mac_address	= lbs_set_mac_address,
981 	.ndo_set_rx_mode	= lbs_set_multicast_list,
982 };
983 
984 /**
985  * lbs_add_mesh - add mshX interface
986  *
987  * @priv:	A pointer to the &struct lbs_private structure
988  * returns:	0 if successful, -X otherwise
989  */
lbs_add_mesh(struct lbs_private * priv)990 static int lbs_add_mesh(struct lbs_private *priv)
991 {
992 	struct net_device *mesh_dev = NULL;
993 	struct wireless_dev *mesh_wdev;
994 	int ret = 0;
995 
996 	lbs_deb_enter(LBS_DEB_MESH);
997 
998 	/* Allocate a virtual mesh device */
999 	mesh_wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1000 	if (!mesh_wdev) {
1001 		lbs_deb_mesh("init mshX wireless device failed\n");
1002 		ret = -ENOMEM;
1003 		goto done;
1004 	}
1005 
1006 	mesh_dev = alloc_netdev(0, "msh%d", ether_setup);
1007 	if (!mesh_dev) {
1008 		lbs_deb_mesh("init mshX device failed\n");
1009 		ret = -ENOMEM;
1010 		goto err_free_wdev;
1011 	}
1012 
1013 	mesh_wdev->iftype = NL80211_IFTYPE_MESH_POINT;
1014 	mesh_wdev->wiphy = priv->wdev->wiphy;
1015 	mesh_wdev->netdev = mesh_dev;
1016 
1017 	mesh_dev->ml_priv = priv;
1018 	mesh_dev->ieee80211_ptr = mesh_wdev;
1019 	priv->mesh_dev = mesh_dev;
1020 
1021 	mesh_dev->netdev_ops = &mesh_netdev_ops;
1022 	mesh_dev->ethtool_ops = &lbs_ethtool_ops;
1023 	memcpy(mesh_dev->dev_addr, priv->dev->dev_addr, ETH_ALEN);
1024 
1025 	SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);
1026 
1027 	mesh_dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1028 	/* Register virtual mesh interface */
1029 	ret = register_netdev(mesh_dev);
1030 	if (ret) {
1031 		pr_err("cannot register mshX virtual interface\n");
1032 		goto err_free_netdev;
1033 	}
1034 
1035 	ret = sysfs_create_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1036 	if (ret)
1037 		goto err_unregister;
1038 
1039 	lbs_persist_config_init(mesh_dev);
1040 
1041 	/* Everything successful */
1042 	ret = 0;
1043 	goto done;
1044 
1045 err_unregister:
1046 	unregister_netdev(mesh_dev);
1047 
1048 err_free_netdev:
1049 	free_netdev(mesh_dev);
1050 
1051 err_free_wdev:
1052 	kfree(mesh_wdev);
1053 
1054 done:
1055 	lbs_deb_leave_args(LBS_DEB_MESH, "ret %d", ret);
1056 	return ret;
1057 }
1058 
lbs_remove_mesh(struct lbs_private * priv)1059 void lbs_remove_mesh(struct lbs_private *priv)
1060 {
1061 	struct net_device *mesh_dev;
1062 
1063 	mesh_dev = priv->mesh_dev;
1064 	if (!mesh_dev)
1065 		return;
1066 
1067 	lbs_deb_enter(LBS_DEB_MESH);
1068 	netif_stop_queue(mesh_dev);
1069 	netif_carrier_off(mesh_dev);
1070 	sysfs_remove_group(&(mesh_dev->dev.kobj), &lbs_mesh_attr_group);
1071 	lbs_persist_config_remove(mesh_dev);
1072 	unregister_netdev(mesh_dev);
1073 	priv->mesh_dev = NULL;
1074 	kfree(mesh_dev->ieee80211_ptr);
1075 	free_netdev(mesh_dev);
1076 	lbs_deb_leave(LBS_DEB_MESH);
1077 }
1078 
1079 
1080 /***************************************************************************
1081  * Sending and receiving
1082  */
lbs_mesh_set_dev(struct lbs_private * priv,struct net_device * dev,struct rxpd * rxpd)1083 struct net_device *lbs_mesh_set_dev(struct lbs_private *priv,
1084 	struct net_device *dev, struct rxpd *rxpd)
1085 {
1086 	if (priv->mesh_dev) {
1087 		if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID) {
1088 			if (rxpd->rx_control & RxPD_MESH_FRAME)
1089 				dev = priv->mesh_dev;
1090 		} else if (priv->mesh_tlv == TLV_TYPE_MESH_ID) {
1091 			if (rxpd->u.bss.bss_num == MESH_IFACE_ID)
1092 				dev = priv->mesh_dev;
1093 		}
1094 	}
1095 	return dev;
1096 }
1097 
1098 
lbs_mesh_set_txpd(struct lbs_private * priv,struct net_device * dev,struct txpd * txpd)1099 void lbs_mesh_set_txpd(struct lbs_private *priv,
1100 	struct net_device *dev, struct txpd *txpd)
1101 {
1102 	if (dev == priv->mesh_dev) {
1103 		if (priv->mesh_tlv == TLV_TYPE_OLD_MESH_ID)
1104 			txpd->tx_control |= cpu_to_le32(TxPD_MESH_FRAME);
1105 		else if (priv->mesh_tlv == TLV_TYPE_MESH_ID)
1106 			txpd->u.bss.bss_num = MESH_IFACE_ID;
1107 	}
1108 }
1109 
1110 
1111 /***************************************************************************
1112  * Ethtool related
1113  */
1114 
1115 static const char * const mesh_stat_strings[] = {
1116 			"drop_duplicate_bcast",
1117 			"drop_ttl_zero",
1118 			"drop_no_fwd_route",
1119 			"drop_no_buffers",
1120 			"fwded_unicast_cnt",
1121 			"fwded_bcast_cnt",
1122 			"drop_blind_table",
1123 			"tx_failed_cnt"
1124 };
1125 
lbs_mesh_ethtool_get_stats(struct net_device * dev,struct ethtool_stats * stats,uint64_t * data)1126 void lbs_mesh_ethtool_get_stats(struct net_device *dev,
1127 	struct ethtool_stats *stats, uint64_t *data)
1128 {
1129 	struct lbs_private *priv = dev->ml_priv;
1130 	struct cmd_ds_mesh_access mesh_access;
1131 	int ret;
1132 
1133 	lbs_deb_enter(LBS_DEB_ETHTOOL);
1134 
1135 	/* Get Mesh Statistics */
1136 	ret = lbs_mesh_access(priv, CMD_ACT_MESH_GET_STATS, &mesh_access);
1137 
1138 	if (ret) {
1139 		memset(data, 0, MESH_STATS_NUM*(sizeof(uint64_t)));
1140 		return;
1141 	}
1142 
1143 	priv->mstats.fwd_drop_rbt = le32_to_cpu(mesh_access.data[0]);
1144 	priv->mstats.fwd_drop_ttl = le32_to_cpu(mesh_access.data[1]);
1145 	priv->mstats.fwd_drop_noroute = le32_to_cpu(mesh_access.data[2]);
1146 	priv->mstats.fwd_drop_nobuf = le32_to_cpu(mesh_access.data[3]);
1147 	priv->mstats.fwd_unicast_cnt = le32_to_cpu(mesh_access.data[4]);
1148 	priv->mstats.fwd_bcast_cnt = le32_to_cpu(mesh_access.data[5]);
1149 	priv->mstats.drop_blind = le32_to_cpu(mesh_access.data[6]);
1150 	priv->mstats.tx_failed_cnt = le32_to_cpu(mesh_access.data[7]);
1151 
1152 	data[0] = priv->mstats.fwd_drop_rbt;
1153 	data[1] = priv->mstats.fwd_drop_ttl;
1154 	data[2] = priv->mstats.fwd_drop_noroute;
1155 	data[3] = priv->mstats.fwd_drop_nobuf;
1156 	data[4] = priv->mstats.fwd_unicast_cnt;
1157 	data[5] = priv->mstats.fwd_bcast_cnt;
1158 	data[6] = priv->mstats.drop_blind;
1159 	data[7] = priv->mstats.tx_failed_cnt;
1160 
1161 	lbs_deb_enter(LBS_DEB_ETHTOOL);
1162 }
1163 
lbs_mesh_ethtool_get_sset_count(struct net_device * dev,int sset)1164 int lbs_mesh_ethtool_get_sset_count(struct net_device *dev, int sset)
1165 {
1166 	struct lbs_private *priv = dev->ml_priv;
1167 
1168 	if (sset == ETH_SS_STATS && dev == priv->mesh_dev)
1169 		return MESH_STATS_NUM;
1170 
1171 	return -EOPNOTSUPP;
1172 }
1173 
lbs_mesh_ethtool_get_strings(struct net_device * dev,uint32_t stringset,uint8_t * s)1174 void lbs_mesh_ethtool_get_strings(struct net_device *dev,
1175 	uint32_t stringset, uint8_t *s)
1176 {
1177 	int i;
1178 
1179 	lbs_deb_enter(LBS_DEB_ETHTOOL);
1180 
1181 	switch (stringset) {
1182 	case ETH_SS_STATS:
1183 		for (i = 0; i < MESH_STATS_NUM; i++) {
1184 			memcpy(s + i * ETH_GSTRING_LEN,
1185 					mesh_stat_strings[i],
1186 					ETH_GSTRING_LEN);
1187 		}
1188 		break;
1189 	}
1190 	lbs_deb_enter(LBS_DEB_ETHTOOL);
1191 }
1192