[MAC80211]: Add debugfs attributes.
Export various mac80211 internal variables through debugfs.
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c
index 68bddae..2048cfd 100644
--- a/net/mac80211/rc80211_simple.c
+++ b/net/mac80211/rc80211_simple.c
@@ -18,6 +18,7 @@
#include <net/mac80211.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
+#include "debugfs.h"
/* This is a minimal implementation of TX rate controlling that can be used
@@ -121,6 +122,11 @@
unsigned long avg_rate_update;
u32 tx_avg_rate_sum;
u32 tx_avg_rate_num;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *tx_avg_rate_sum_dentry;
+ struct dentry *tx_avg_rate_num_dentry;
+#endif
};
@@ -327,6 +333,67 @@
kfree(rctrl);
}
+#ifdef CONFIG_MAC80211_DEBUGFS
+
+static int open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_rate_control *srctrl = file->private_data;
+ char buf[20];
+
+ sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations sta_tx_avg_rate_sum_ops = {
+ .read = sta_tx_avg_rate_sum_read,
+ .open = open_file_generic,
+};
+
+static ssize_t sta_tx_avg_rate_num_read(struct file *file,
+ char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_rate_control *srctrl = file->private_data;
+ char buf[20];
+
+ sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
+}
+
+static const struct file_operations sta_tx_avg_rate_num_ops = {
+ .read = sta_tx_avg_rate_num_read,
+ .open = open_file_generic,
+};
+
+static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
+ struct dentry *dir)
+{
+ struct sta_rate_control *srctrl = priv_sta;
+
+ srctrl->tx_avg_rate_num_dentry =
+ debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
+ dir, srctrl, &sta_tx_avg_rate_num_ops);
+ srctrl->tx_avg_rate_sum_dentry =
+ debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
+ dir, srctrl, &sta_tx_avg_rate_sum_ops);
+}
+
+static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
+{
+ struct sta_rate_control *srctrl = priv_sta;
+
+ debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
+ debugfs_remove(srctrl->tx_avg_rate_num_dentry);
+}
+#endif
static struct rate_control_ops rate_control_simple = {
.module = THIS_MODULE,
@@ -339,6 +406,10 @@
.free = rate_control_simple_free,
.alloc_sta = rate_control_simple_alloc_sta,
.free_sta = rate_control_simple_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = rate_control_simple_add_sta_debugfs,
+ .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
+#endif
};