From e9f207f0ff90bf60b825800d7450e6f2ff2eab88 Mon Sep 17 00:00:00 2001 From: Jiri Benc Date: Sat, 5 May 2007 11:46:38 -0700 Subject: [MAC80211]: Add debugfs attributes. Export various mac80211 internal variables through debugfs. Signed-off-by: Jiri Benc Signed-off-by: John W. Linville Signed-off-by: David S. Miller --- net/mac80211/rc80211_simple.c | 71 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) (limited to 'net/mac80211/rc80211_simple.c') diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c index 68bddaeee00..2048cfd1ca7 100644 --- a/net/mac80211/rc80211_simple.c +++ b/net/mac80211/rc80211_simple.c @@ -18,6 +18,7 @@ #include #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 @@ struct sta_rate_control { 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 @@ static void rate_control_simple_free_sta(void *priv, void *priv_sta) 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 @@ static struct rate_control_ops rate_control_simple = { .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 }; -- cgit v1.2.3