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authorMohammed Shafi Shajakhan <mshajakhan@atheros.com>2011-04-08 21:24:24 +0530
committerJohn W. Linville <linville@tuxdriver.com>2011-04-12 16:58:47 -0400
commitebe27c91af8b7f4810ae906fbd3eeb2d87850026 (patch)
treeeff1fe0dbb8ecb4b116d8f96c6beb3eda1c52c7a /net
parentf60c49b67dd6db2ccb740a6a671414f9dab00c4f (diff)
downloadblackbird-op-linux-ebe27c91af8b7f4810ae906fbd3eeb2d87850026.tar.gz
blackbird-op-linux-ebe27c91af8b7f4810ae906fbd3eeb2d87850026.zip
{mac|nl}80211: Add station connected time
Add station connected time in debugfs. This will be helpful to get a measure of stability of the connection and for debugging stress issues Cc: Senthilkumar Balasubramanian <Senthilkumar.Balasubramanian@Atheros.com> Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/cfg.c7
-rw-r--r--net/mac80211/debugfs_sta.c26
-rw-r--r--net/mac80211/sta_info.c3
-rw-r--r--net/mac80211/sta_info.h2
-rw-r--r--net/wireless/nl80211.c3
5 files changed, 40 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 1c25723eacda..a6d191f2a0fe 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -330,6 +330,7 @@ static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, in
static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
+ struct timespec uptime;
sinfo->generation = sdata->local->sta_generation;
@@ -343,7 +344,11 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
STATION_INFO_TX_BITRATE |
STATION_INFO_RX_BITRATE |
STATION_INFO_RX_DROP_MISC |
- STATION_INFO_BSS_PARAM;
+ STATION_INFO_BSS_PARAM |
+ STATION_INFO_CONNECTED_TIME;
+
+ do_posix_clock_monotonic_gettime(&uptime);
+ sinfo->connected_time = uptime.tv_sec - sta->last_connected;
sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
sinfo->rx_bytes = sta->rx_bytes;
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index c04a1396cf8d..c008232731eb 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -92,6 +92,31 @@ static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
}
STA_OPS(inactive_ms);
+
+static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_info *sta = file->private_data;
+ struct timespec uptime;
+ struct tm result;
+ long connected_time_secs;
+ char buf[100];
+ int res;
+ do_posix_clock_monotonic_gettime(&uptime);
+ connected_time_secs = uptime.tv_sec - sta->last_connected;
+ time_to_tm(connected_time_secs, 0, &result);
+ result.tm_year -= 70;
+ result.tm_mday -= 1;
+ res = scnprintf(buf, sizeof(buf),
+ "years - %d\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n",
+ result.tm_year, result.tm_mon, result.tm_mday,
+ result.tm_hour, result.tm_min, result.tm_sec);
+ return simple_read_from_buffer(userbuf, count, ppos, buf, res);
+}
+STA_OPS(connected_time);
+
+
+
static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
@@ -324,6 +349,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(flags);
DEBUGFS_ADD(num_ps_buf_frames);
DEBUGFS_ADD(inactive_ms);
+ DEBUGFS_ADD(connected_time);
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 999f8fbf0b4b..8a9068ac0673 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -228,6 +228,7 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
+ struct timespec uptime;
int i;
sta = kzalloc(sizeof(*sta) + local->hw.sta_data_size, gfp);
@@ -245,6 +246,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
sta->sdata = sdata;
sta->last_rx = jiffies;
+ do_posix_clock_monotonic_gettime(&uptime);
+ sta->last_connected = uptime.tv_sec;
ewma_init(&sta->avg_signal, 1024, 8);
if (sta_prepare_rate_control(local, sta, gfp)) {
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 43238e99cfb3..984a03db3553 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
+ * @last_connected: time (in seconds) when a station got connected
* @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;
+ long last_connected;
unsigned long num_duplicates;
unsigned long rx_fragments;
unsigned long rx_dropped;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 58f501a35022..0efa7fd01150 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2020,6 +2020,9 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO);
if (!sinfoattr)
goto nla_put_failure;
+ if (sinfo->filled & STATION_INFO_CONNECTED_TIME)
+ NLA_PUT_U32(msg, NL80211_STA_INFO_CONNECTED_TIME,
+ sinfo->connected_time);
if (sinfo->filled & STATION_INFO_INACTIVE_TIME)
NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME,
sinfo->inactive_time);
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