From: Mohammed Shafi Shajakhan <mshajakhan@xxxxxxxxxxx>
Add station uptime parameter in debugfs. This will be helpful to get a
measure of stability of connection and also during stress testing.
Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@xxxxxxxxxxx>
---
net/mac80211/debugfs_sta.c | 22 ++++++++++++++++++++++
net/mac80211/sta_info.c | 1 +
net/mac80211/sta_info.h | 2 ++
3 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index c04a139..cc79e76 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -73,6 +73,27 @@ static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
}
STA_OPS(flags);
+static ssize_t sta_station_uptime_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_info *sta = file->private_data;
+ struct tm result;
+ unsigned long uptime_msecs;
+ unsigned long uptime_secs;
+ char buf[100];
+ int res;
+ uptime_msecs = jiffies_to_msecs(jiffies - (sta->sta_uptime));
+ uptime_secs = uptime_msecs / 1000;
+ uptime_msecs %= 1000;
+ time_to_tm(uptime_secs, 0, &result);
+ res = scnprintf(buf, sizeof(buf),
+ "days - %d\nclock - %d:%d:%d\nmsecs - %lu\n",
+ result.tm_yday, result.tm_hour,
+ result.tm_min, result.tm_sec, uptime_msecs);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(station_uptime);
+
static ssize_t sta_num_ps_buf_frames_read(struct file *file,
char __user *userbuf,
size_t count, loff_t *ppos)
@@ -324,6 +345,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(flags);
DEBUGFS_ADD(num_ps_buf_frames);
DEBUGFS_ADD(inactive_ms);
+ DEBUGFS_ADD(station_uptime);
DEBUGFS_ADD(last_seq_ctrl);
DEBUGFS_ADD(agg_status);
DEBUGFS_ADD(dev);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 999f8fb..08b9f51 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -244,6 +244,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
sta->local = local;
sta->sdata = sdata;
sta->last_rx = jiffies;
+ sta->sta_uptime = jiffies;
ewma_init(&sta->avg_signal, 1024, 8);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 43238e9..e704270 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -226,6 +226,7 @@ enum plink_state {
* @rx_bytes: Number of bytes received from this STA
* @wep_weak_iv_count: number of weak WEP IVs received from this station
* @last_rx: time (in jiffies) when last frame was received from this STA
+ * @sta_uptime: time (in jiffies) when the station gets associated
* @num_duplicates: number of duplicate frames received from this STA
* @rx_fragments: number of received MPDUs
* @rx_dropped: number of dropped MPDUs from this STA
@@ -295,6 +296,7 @@ struct sta_info {
unsigned long rx_packets, rx_bytes;
unsigned long wep_weak_iv_count;
unsigned long last_rx;
+ unsigned long sta_uptime;
unsigned long num_duplicates;
unsigned long rx_fragments;
unsigned long rx_dropped;
--
1.7.0.4
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