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RFC[3/4] mac80211: add statistic to debugfs

PATCH Saravana 1 participant 1 message Nov 26, 2012 mac80211

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Saravana

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#0 lore raw

Provide additional statistic support to the debugfs.

Current Tx Rate:
The rc_stats file in the debugfs provides the a more detailed
information of individual rates(success, retries, PER etc). But the current tx rate may not be evidently interpreted from this. This statistic will provide the current tx rate evidently.

---
The diff file is generated from wireless-testing git tree.

 net/mac80211/debugfs_sta.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
net/mac80211/debugfs_sta.c +15 -0
index 89281d2..c576848 100644
@@ -321,6 +321,20 @@ static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
 }
 STA_OPS(ht_capa);
 
+static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
+				      size_t count, loff_t *ppos)
+{
+	struct sta_info *sta = file->private_data;
+	struct rate_info rinfo;
+	u16 rate;
+	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo);
+	rate = cfg80211_calculate_bitrate(&rinfo);
+
+	return mac80211_format_buffer(userbuf, count, ppos, "%d.%d MBit/s\n",rate/10,rate%10);
+
+}
+STA_OPS(current_tx_rate);
+
 #define DEBUGFS_ADD(name) \
 	debugfs_create_file(#name, 0400, \
 		sta->debugfs.dir, sta, &sta_ ##name## _ops);
@@ -369,6 +383,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	DEBUGFS_ADD(dev);
 	DEBUGFS_ADD(last_signal);
 	DEBUGFS_ADD(ht_capa);
+	DEBUGFS_ADD(current_tx_rate);
 
 	DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
 	DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);