aboutsummaryrefslogtreecommitdiffstats
path: root/net/mac80211
diff options
context:
space:
mode:
authorJohannes Berg <johannes@sipsolutions.net>2008-09-11 02:03:28 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-09-15 16:48:23 -0400
commit95dac040041723d0c0ab245642c1b9802f12cc8d (patch)
tree2ac4f11b3cb1a350a892ac80ac3ba76d24076c70 /net/mac80211
parent81c065238644ade3869391f977438ff7ed3158db (diff)
mac80211: small rate control changes
This patch fixes mac80211 to not rely on the rate control algorithm to update sta->tx_retry_failed and sta->tx_retry_count (even if we don't currently use them), removes a number of completely unused values we don't even show in debugfs and changes the code in ieee80211_tx_status() to not look up the sta_info repeatedly. The only behaviour change here would be not calling the rate control function rate_control_tx_status() when no sta_info is found, but all rate control algorithms ignore such calls anyway. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/main.c50
-rw-r--r--net/mac80211/rc80211_pid_algo.c11
-rw-r--r--net/mac80211/sta_info.h7
3 files changed, 25 insertions, 43 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index dd838b725afb..c307dba7ec03 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -546,29 +546,27 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
rcu_read_lock();
- if (info->status.excessive_retries) {
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- if (test_sta_flags(sta, WLAN_STA_PS)) {
- /*
- * The STA is in power save mode, so assume
- * that this TX packet failed because of that.
- */
- ieee80211_handle_filtered_frame(local, sta, skb);
- rcu_read_unlock();
- return;
- }
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (sta) {
+ if (info->status.excessive_retries &&
+ test_sta_flags(sta, WLAN_STA_PS)) {
+ /*
+ * The STA is in power save mode, so assume
+ * that this TX packet failed because of that.
+ */
+ ieee80211_handle_filtered_frame(local, sta, skb);
+ rcu_read_unlock();
+ return;
}
- }
- fc = hdr->frame_control;
+ fc = hdr->frame_control;
+
+ if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
+ (ieee80211_is_data_qos(fc))) {
+ u16 tid, ssn;
+ u8 *qc;
- if ((info->flags & IEEE80211_TX_STAT_AMPDU_NO_BACK) &&
- (ieee80211_is_data_qos(fc))) {
- u16 tid, ssn;
- u8 *qc;
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
qc = ieee80211_get_qos_ctl(hdr);
tid = qc[0] & 0xf;
ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
@@ -576,17 +574,19 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
ieee80211_send_bar(sta->sdata, hdr->addr1,
tid, ssn);
}
- }
- if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
+ if (info->flags & IEEE80211_TX_STAT_TX_FILTERED) {
ieee80211_handle_filtered_frame(local, sta, skb);
rcu_read_unlock();
return;
+ } else {
+ if (info->status.excessive_retries)
+ sta->tx_retry_failed++;
+ sta->tx_retry_count += info->status.retry_count;
}
- } else
+
rate_control_tx_status(local->mdev, skb);
+ }
rcu_read_unlock();
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
index 21e1942ea975..94867860c3e0 100644
--- a/net/mac80211/rc80211_pid_algo.c
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -282,17 +282,6 @@ static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
spinfo->tx_num_xmit++;
}
- if (info->status.excessive_retries) {
- sta->tx_retry_failed++;
- sta->tx_num_consecutive_failures++;
- sta->tx_num_mpdu_fail++;
- } else {
- sta->tx_num_consecutive_failures = 0;
- sta->tx_num_mpdu_ok++;
- }
- sta->tx_retry_count += info->status.retry_count;
- sta->tx_num_mpdu_fail += info->status.retry_count;
-
/* Update PID controller state. */
period = (HZ * pinfo->sampling_period + 500) / 1000;
if (!period)
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index e7ce12dbf270..4a9b96eeb687 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -195,9 +195,6 @@ struct sta_ampdu_mlme {
* @tx_filtered_count: TBD
* @tx_retry_failed: TBD
* @tx_retry_count: TBD
- * @tx_num_consecutive_failures: TBD
- * @tx_num_mpdu_ok: TBD
- * @tx_num_mpdu_fail: TBD
* @fail_avg: moving percentage of failed MSDUs
* @tx_packets: number of RX/TX MSDUs
* @tx_bytes: TBD
@@ -273,10 +270,6 @@ struct sta_info {
/* Updated from TX status path only, no locking requirements */
unsigned long tx_filtered_count;
unsigned long tx_retry_failed, tx_retry_count;
- /* TODO: update in generic code not rate control? */
- u32 tx_num_consecutive_failures;
- u32 tx_num_mpdu_ok;
- u32 tx_num_mpdu_fail;
/* moving percentage of failed MSDUs */
unsigned int fail_avg;

Privacy Policy