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mac80211: add debugfs file for current tx rate

PATCH Applied Saravana 2 participants 4 messages Nov 29, 2012 mac80211

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Saravana

author
#0 lore raw

PATCH v2 1/1 mac80211: add debugfs file for current tx rate

Add a debugfs file showing the current tx rate. The information available in the rc_stats file doesn't evidently provides us the current tx rate. This patch adds the support for the same.

Signed-off-by Saravana <[email protected]>
---
 net/mac80211/debugfs_sta.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
net/mac80211/debugfs_sta.c +15 -0
index 1566941..1090c24 100644
@@ -322,6 +322,20 @@ 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);

@@ -371,6 +385,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
 	DEBUGFS_ADD(last_signal);
 	DEBUGFS_ADD(ht_capa);
 	DEBUGFS_ADD(last_ack_signal);
+	DEBUGFS_ADD(current_tx_rate);
 
 	DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
 	DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
maintainer Applied
#1 lore raw
Quoted 4 lines · Saravana

Add a debugfs file showing the current tx rate. The information available in the rc_stats file doesn't evidently provides us the current tx rate. This patch adds the support for the same.

Applied. But it doesn't actually require the *rx* rework, so I've left that out.

johannes

author
#2 lore raw
Quoted 9 lines · Johannes Berg
Quoted 4 lines · Saravana

Add a debugfs file showing the current tx rate. The information available in the rc_stats file doesn't evidently provides us the current tx rate. This patch adds the support for the same.

Applied. But it doesn't actually require the *rx* rework, so I've left that out.

*rx* rework is required for the last rx rate stat. After giving my rationale on the need for addition of last rx rate and mic failure count stat, i am waiting for your inputs regarding the same.

Quoted 3 lines

johannes

maintainer
#3 lore raw
Quoted 7 lines · Saravana
Quoted 6 lines · Johannes Berg
Quoted 4 lines · Saravana

Add a debugfs file showing the current tx rate. The information available in the rc_stats file doesn't evidently provides us the current tx rate. This patch adds the support for the same.

Quoted 7 lines
Quoted 3 lines

Applied. But it doesn't actually require the *rx* rework, so I've left that out.

*rx* rework is required for the last rx rate stat. After giving my rationale on the need for addition of last rx rate and mic failure count stat, i am waiting for your inputs regarding the same.

Oh sorry. I'm not sure I'd use it, but if you find it useful it's just debugfs so go ahead.

johannes