summaryrefslogtreecommitdiffstats
path: root/net/mac80211
diff options
context:
space:
mode:
authorSaravana <saravanad@posedge.com>2012-11-28 18:27:09 +0530
committerJohannes Berg <johannes.berg@intel.com>2012-11-29 13:36:43 +0100
commitdb94357dbd79359496cd5189640cc36bb3c35733 (patch)
tree96245544e119db490457b8ad2f91b021c8b53393 /net/mac80211
parentdbeca2ea4642d9de0a59ac141b2825ea6804f408 (diff)
downloadop-kernel-dev-db94357dbd79359496cd5189640cc36bb3c35733.zip
op-kernel-dev-db94357dbd79359496cd5189640cc36bb3c35733.tar.gz
mac80211: add debugfs file for last ack signal
Add a debugfs file showing the signal strength of the ack frame that is received for the currently sent tx packet Signed-off-by: Saravana <saravanad@posedge.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/debugfs_sta.c2
-rw-r--r--net/mac80211/sta_info.h2
-rw-r--r--net/mac80211/status.c3
3 files changed, 7 insertions, 0 deletions
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 89281d2..1566941 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -53,6 +53,7 @@ static const struct file_operations sta_ ##name## _ops = { \
STA_FILE(aid, sta.aid, D);
STA_FILE(dev, sdata->name, S);
STA_FILE(last_signal, last_signal, D);
+STA_FILE(last_ack_signal, last_ack_signal, D);
static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
@@ -369,6 +370,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(dev);
DEBUGFS_ADD(last_signal);
DEBUGFS_ADD(ht_capa);
+ DEBUGFS_ADD(last_ack_signal);
DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 6835cea..dce76939 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -250,6 +250,7 @@ struct sta_ampdu_mlme {
* @rx_dropped: number of dropped MPDUs from this STA
* @last_signal: signal of last received frame from this STA
* @avg_signal: moving average of signal of received frames from this STA
+ * @last_ack_signal: signal of last received Ack frame from this STA
* @last_seq_ctrl: last received seq/frag number from this STA (per RX queue)
* @tx_filtered_count: number of frames the hardware filtered for this STA
* @tx_retry_failed: number of frames that failed retry
@@ -329,6 +330,7 @@ struct sta_info {
unsigned long rx_dropped;
int last_signal;
struct ewma avg_signal;
+ int last_ack_signal;
/* Plus 1 for non-QoS frames */
__le16 last_seq_ctrl[IEEE80211_NUM_TIDS + 1];
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 2d931ad..6400037 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -539,6 +539,9 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
sta->lost_packets = 0;
}
}
+
+ if (acked)
+ sta->last_ack_signal = info->status.ack_signal;
}
rcu_read_unlock();
OpenPOWER on IntegriCloud