2012-11-28 13:23:37

by Saravana

Subject: [PATCH] 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(-)

diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 89281d2..b10ae46 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -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);

2012-11-29 12:39:51

by Johannes Berg

Subject: Re: [PATCH] mac80211: add debugfs file for current tx rate

On Wed, 2012-11-28 at 18:53 +0530, Saravana wrote:
> 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.

This didn't apply, it conflicts with your other patch. I've therefore
also not applied the re-organise patch for now, but no need to resend
that one, just this one would be good.

johannes