korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-30 06:25:03 +08:00
Code Issues Packages Projects Releases Wiki Activity

libertas: Create sysfs entry for changing the mesh probe response limit

Browse Source 
This patch adds the ability to change the number of probe response retries sent
by the mesh interface.

In dense networks it is recommended to change this value to zero to reduce
traffic congestion.

Signed-off-by: Anna Neal <anna@cozybit.com>
Signed-off-by: Andrey Yurovsky <andrey@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Anna Neal 2008-12-09 13:23:45 -08:00 committed by John W. Linville
parent b77f483fcf
commit 6fb532527e
2 changed files with 61 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/libertas/host.h
View File

@ -245,6 +245,7 @@ enum cmd_mesh_access_opts {
CMD_ACT_MESH_GET_ROUTE_EXP,
CMD_ACT_MESH_SET_AUTOSTART_ENABLED,
CMD_ACT_MESH_GET_AUTOSTART_ENABLED,
CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT = 17,
};
/* Define actions and types for CMD_MESH_CONFIG */

60
drivers/net/wireless/libertas/main.c
View File

@ -257,6 +257,58 @@ static ssize_t lbs_anycast_set(struct device *dev,
return strlen(buf);
}
/**
* @brief Get function for sysfs attribute prb_rsp_limit
*/
static ssize_t lbs_prb_rsp_limit_get(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct lbs_private *priv = netdev_priv(to_net_dev(dev));
struct cmd_ds_mesh_access mesh_access;
int ret;
u32 retry_limit;
memset(&mesh_access, 0, sizeof(mesh_access));
mesh_access.data[0] = cpu_to_le32(CMD_ACT_GET);
ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
&mesh_access);
if (ret)
return ret;
retry_limit = le32_to_cpu(mesh_access.data[1]);
return snprintf(buf, 10, "%d\n", retry_limit);
}
/**
* @brief Set function for sysfs attribute prb_rsp_limit
*/
static ssize_t lbs_prb_rsp_limit_set(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct lbs_private *priv = netdev_priv(to_net_dev(dev));
struct cmd_ds_mesh_access mesh_access;
int ret;
unsigned long retry_limit;
memset(&mesh_access, 0, sizeof(mesh_access));
mesh_access.data[0] = cpu_to_le32(CMD_ACT_SET);
if (!strict_strtoul(buf, 10, &retry_limit))
return -ENOTSUPP;
if (retry_limit > 15)
return -ENOTSUPP;
mesh_access.data[1] = cpu_to_le32(retry_limit);
ret = lbs_mesh_access(priv, CMD_ACT_MESH_SET_GET_PRB_RSP_LIMIT,
&mesh_access);
if (ret)
return ret;
return strlen(buf);
}
static int lbs_add_rtap(struct lbs_private *priv);
static void lbs_remove_rtap(struct lbs_private *priv);
static int lbs_add_mesh(struct lbs_private *priv);
@ -375,8 +427,16 @@ static DEVICE_ATTR(lbs_mesh, 0644, lbs_mesh_get, lbs_mesh_set);
*/
static DEVICE_ATTR(anycast_mask, 0644, lbs_anycast_get, lbs_anycast_set);
/**
* prb_rsp_limit attribute to be exported per mshX interface
* through sysfs (/sys/class/net/mshX/prb_rsp_limit)
*/
static DEVICE_ATTR(prb_rsp_limit, 0644, lbs_prb_rsp_limit_get,
lbs_prb_rsp_limit_set);
static struct attribute *lbs_mesh_sysfs_entries[] = {
&dev_attr_anycast_mask.attr,
&dev_attr_prb_rsp_limit.attr,
NULL,
};