1 #include <linux/moduleparam.h>
2 #include <linux/delay.h>
3 #include <linux/etherdevice.h>
4 #include <linux/netdevice.h>
5 #include <linux/if_arp.h>
6 #include <linux/kthread.h>
7 #include <linux/kfifo.h>
18 static int mesh_get_default_parameters(struct device *dev,
19 struct mrvl_mesh_defaults *defs)
21 struct lbs_private *priv = to_net_dev(dev)->priv;
22 struct cmd_ds_mesh_config cmd;
25 memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
26 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_GET,
27 CMD_TYPE_MESH_GET_DEFAULTS);
32 memcpy(defs, &cmd.data[0], sizeof(struct mrvl_mesh_defaults));
38 * @brief Get function for sysfs attribute bootflag
40 static ssize_t bootflag_get(struct device *dev,
41 struct device_attribute *attr, char *buf)
43 struct mrvl_mesh_defaults defs;
46 ret = mesh_get_default_parameters(dev, &defs);
51 return snprintf(buf, 12, "0x%x\n", le32_to_cpu(defs.bootflag));
55 * @brief Set function for sysfs attribute bootflag
57 static ssize_t bootflag_set(struct device *dev, struct device_attribute *attr,
58 const char *buf, size_t count)
60 struct lbs_private *priv = to_net_dev(dev)->priv;
61 struct cmd_ds_mesh_config cmd;
65 memset(&cmd, 0, sizeof(cmd));
66 ret = sscanf(buf, "%x", &datum);
70 *((__le32 *)&cmd.data[0]) = cpu_to_le32(!!datum);
71 cmd.length = cpu_to_le16(sizeof(uint32_t));
72 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
73 CMD_TYPE_MESH_SET_BOOTFLAG);
81 * @brief Get function for sysfs attribute boottime
83 static ssize_t boottime_get(struct device *dev,
84 struct device_attribute *attr, char *buf)
86 struct mrvl_mesh_defaults defs;
89 ret = mesh_get_default_parameters(dev, &defs);
94 return snprintf(buf, 12, "0x%x\n", defs.boottime);
98 * @brief Set function for sysfs attribute boottime
100 static ssize_t boottime_set(struct device *dev,
101 struct device_attribute *attr, const char *buf, size_t count)
103 struct lbs_private *priv = to_net_dev(dev)->priv;
104 struct cmd_ds_mesh_config cmd;
108 memset(&cmd, 0, sizeof(cmd));
109 ret = sscanf(buf, "%x", &datum);
113 /* A too small boot time will result in the device booting into
114 * standalone (no-host) mode before the host can take control of it,
115 * so the change will be hard to revert. This may be a desired
116 * feature (e.g to configure a very fast boot time for devices that
117 * will not be attached to a host), but dangerous. So I'm enforcing a
118 * lower limit of 20 seconds: remove and recompile the driver if this
119 * does not work for you.
121 datum = (datum < 20) ? 20 : datum;
123 cmd.length = cpu_to_le16(sizeof(uint8_t));
124 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
125 CMD_TYPE_MESH_SET_BOOTTIME);
133 * @brief Get function for sysfs attribute channel
135 static ssize_t channel_get(struct device *dev,
136 struct device_attribute *attr, char *buf)
138 struct mrvl_mesh_defaults defs;
141 ret = mesh_get_default_parameters(dev, &defs);
146 return snprintf(buf, 12, "0x%x\n", le16_to_cpu(defs.channel));
150 * @brief Set function for sysfs attribute channel
152 static ssize_t channel_set(struct device *dev, struct device_attribute *attr,
153 const char *buf, size_t count)
155 struct lbs_private *priv = to_net_dev(dev)->priv;
156 struct cmd_ds_mesh_config cmd;
160 memset(&cmd, 0, sizeof(cmd));
161 ret = sscanf(buf, "%hx", &datum);
162 if (ret != 1 || datum < 1 || datum > 11)
165 *((__le16 *)&cmd.data[0]) = cpu_to_le16(datum);
166 cmd.length = cpu_to_le16(sizeof(uint16_t));
167 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
168 CMD_TYPE_MESH_SET_DEF_CHANNEL);
176 * @brief Get function for sysfs attribute mesh_id
178 static ssize_t mesh_id_get(struct device *dev, struct device_attribute *attr,
181 struct mrvl_mesh_defaults defs;
185 ret = mesh_get_default_parameters(dev, &defs);
190 if (defs.meshie.val.mesh_id_len > IW_ESSID_MAX_SIZE) {
191 lbs_pr_err("inconsistent mesh ID length");
192 defs.meshie.val.mesh_id_len = IW_ESSID_MAX_SIZE;
195 /* SSID not null terminated: reserve room for \0 + \n */
196 maxlen = defs.meshie.val.mesh_id_len + 2;
197 maxlen = (PAGE_SIZE > maxlen) ? maxlen : PAGE_SIZE;
199 defs.meshie.val.mesh_id[defs.meshie.val.mesh_id_len] = '\0';
201 return snprintf(buf, maxlen, "%s\n", defs.meshie.val.mesh_id);
205 * @brief Set function for sysfs attribute mesh_id
207 static ssize_t mesh_id_set(struct device *dev, struct device_attribute *attr,
208 const char *buf, size_t count)
210 struct cmd_ds_mesh_config cmd;
211 struct mrvl_mesh_defaults defs;
212 struct mrvl_meshie *ie;
213 struct lbs_private *priv = to_net_dev(dev)->priv;
217 if (count < 2 || count > IW_ESSID_MAX_SIZE + 1)
220 memset(&cmd, 0, sizeof(struct cmd_ds_mesh_config));
221 ie = (struct mrvl_meshie *) &cmd.data[0];
223 /* fetch all other Information Element parameters */
224 ret = mesh_get_default_parameters(dev, &defs);
226 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
228 /* transfer IE elements */
229 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
232 memcpy(ie->val.mesh_id, buf, len);
234 ie->val.mesh_id_len = len;
236 ie->hdr.len = sizeof(struct mrvl_meshie_val) - IW_ESSID_MAX_SIZE + len;
238 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
239 CMD_TYPE_MESH_SET_MESH_IE);
247 * @brief Get function for sysfs attribute protocol_id
249 static ssize_t protocol_id_get(struct device *dev,
250 struct device_attribute *attr, char *buf)
252 struct mrvl_mesh_defaults defs;
255 ret = mesh_get_default_parameters(dev, &defs);
260 return snprintf(buf, 5, "%d\n", defs.meshie.val.active_protocol_id);
264 * @brief Set function for sysfs attribute protocol_id
266 static ssize_t protocol_id_set(struct device *dev,
267 struct device_attribute *attr, const char *buf, size_t count)
269 struct cmd_ds_mesh_config cmd;
270 struct mrvl_mesh_defaults defs;
271 struct mrvl_meshie *ie;
272 struct lbs_private *priv = to_net_dev(dev)->priv;
276 memset(&cmd, 0, sizeof(cmd));
277 ret = sscanf(buf, "%x", &datum);
281 /* fetch all other Information Element parameters */
282 ret = mesh_get_default_parameters(dev, &defs);
284 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
286 /* transfer IE elements */
287 ie = (struct mrvl_meshie *) &cmd.data[0];
288 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
289 /* update protocol id */
290 ie->val.active_protocol_id = datum;
292 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
293 CMD_TYPE_MESH_SET_MESH_IE);
301 * @brief Get function for sysfs attribute metric_id
303 static ssize_t metric_id_get(struct device *dev,
304 struct device_attribute *attr, char *buf)
306 struct mrvl_mesh_defaults defs;
309 ret = mesh_get_default_parameters(dev, &defs);
314 return snprintf(buf, 5, "%d\n", defs.meshie.val.active_metric_id);
318 * @brief Set function for sysfs attribute metric_id
320 static ssize_t metric_id_set(struct device *dev, struct device_attribute *attr,
321 const char *buf, size_t count)
323 struct cmd_ds_mesh_config cmd;
324 struct mrvl_mesh_defaults defs;
325 struct mrvl_meshie *ie;
326 struct lbs_private *priv = to_net_dev(dev)->priv;
330 memset(&cmd, 0, sizeof(cmd));
331 ret = sscanf(buf, "%x", &datum);
335 /* fetch all other Information Element parameters */
336 ret = mesh_get_default_parameters(dev, &defs);
338 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
340 /* transfer IE elements */
341 ie = (struct mrvl_meshie *) &cmd.data[0];
342 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
343 /* update metric id */
344 ie->val.active_metric_id = datum;
346 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
347 CMD_TYPE_MESH_SET_MESH_IE);
355 * @brief Get function for sysfs attribute capability
357 static ssize_t capability_get(struct device *dev,
358 struct device_attribute *attr, char *buf)
360 struct mrvl_mesh_defaults defs;
363 ret = mesh_get_default_parameters(dev, &defs);
368 return snprintf(buf, 5, "%d\n", defs.meshie.val.mesh_capability);
372 * @brief Set function for sysfs attribute capability
374 static ssize_t capability_set(struct device *dev, struct device_attribute *attr,
375 const char *buf, size_t count)
377 struct cmd_ds_mesh_config cmd;
378 struct mrvl_mesh_defaults defs;
379 struct mrvl_meshie *ie;
380 struct lbs_private *priv = to_net_dev(dev)->priv;
384 memset(&cmd, 0, sizeof(cmd));
385 ret = sscanf(buf, "%x", &datum);
389 /* fetch all other Information Element parameters */
390 ret = mesh_get_default_parameters(dev, &defs);
392 cmd.length = cpu_to_le16(sizeof(struct mrvl_meshie));
394 /* transfer IE elements */
395 ie = (struct mrvl_meshie *) &cmd.data[0];
396 memcpy(ie, &defs.meshie, sizeof(struct mrvl_meshie));
398 ie->val.mesh_capability = datum;
400 ret = lbs_mesh_config_send(priv, &cmd, CMD_ACT_MESH_CONFIG_SET,
401 CMD_TYPE_MESH_SET_MESH_IE);
409 static DEVICE_ATTR(bootflag, 0644, bootflag_get, bootflag_set);
410 static DEVICE_ATTR(boottime, 0644, boottime_get, boottime_set);
411 static DEVICE_ATTR(channel, 0644, channel_get, channel_set);
412 static DEVICE_ATTR(mesh_id, 0644, mesh_id_get, mesh_id_set);
413 static DEVICE_ATTR(protocol_id, 0644, protocol_id_get, protocol_id_set);
414 static DEVICE_ATTR(metric_id, 0644, metric_id_get, metric_id_set);
415 static DEVICE_ATTR(capability, 0644, capability_get, capability_set);
417 static struct attribute *boot_opts_attrs[] = {
418 &dev_attr_bootflag.attr,
419 &dev_attr_boottime.attr,
420 &dev_attr_channel.attr,
424 static struct attribute_group boot_opts_group = {
425 .name = "boot_options",
426 .attrs = boot_opts_attrs,
429 static struct attribute *mesh_ie_attrs[] = {
430 &dev_attr_mesh_id.attr,
431 &dev_attr_protocol_id.attr,
432 &dev_attr_metric_id.attr,
433 &dev_attr_capability.attr,
437 static struct attribute_group mesh_ie_group = {
439 .attrs = mesh_ie_attrs,
442 void lbs_persist_config_init(struct net_device *dev)
445 ret = sysfs_create_group(&(dev->dev.kobj), &boot_opts_group);
446 ret = sysfs_create_group(&(dev->dev.kobj), &mesh_ie_group);
449 void lbs_persist_config_remove(struct net_device *dev)
451 sysfs_remove_group(&(dev->dev.kobj), &boot_opts_group);
452 sysfs_remove_group(&(dev->dev.kobj), &mesh_ie_group);