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authorFelix Fietkau <nbd@openwrt.org>2014-11-19 20:08:13 +0100
committerJohannes Berg <johannes.berg@intel.com>2014-11-28 15:01:51 +0100
commitf027c2aca0cf43e0f15fc8de8841f7b566163d94 (patch)
tree932656a5a8d8b1048d287dea276c9cf5a29fb10c /net/mac80211
parentmac0211: add a helper function for fixing up tx status rates (diff)
downloadlinux-f027c2aca0cf43e0f15fc8de8841f7b566163d94.tar.xz
linux-f027c2aca0cf43e0f15fc8de8841f7b566163d94.zip
mac80211: add ieee80211_tx_status_noskb
This can be used by drivers that cannot reliably map tx status information onto specific skbs. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/rate.h18
-rw-r--r--net/mac80211/status.c54
2 files changed, 72 insertions, 0 deletions
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index dd25964a300a..38652f09feaf 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -48,6 +48,24 @@ static inline void rate_control_tx_status(struct ieee80211_local *local,
ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info);
}
+static inline void
+rate_control_tx_status_noskb(struct ieee80211_local *local,
+ struct ieee80211_supported_band *sband,
+ struct sta_info *sta,
+ struct ieee80211_tx_info *info)
+{
+ struct rate_control_ref *ref = local->rate_ctrl;
+ struct ieee80211_sta *ista = &sta->sta;
+ void *priv_sta = sta->rate_ctrl_priv;
+
+ if (!ref || !test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
+ return;
+
+ if (WARN_ON_ONCE(!ref->ops->tx_status_noskb))
+ return;
+
+ ref->ops->tx_status_noskb(ref->priv, sband, ista, priv_sta, info);
+}
static inline void rate_control_rate_init(struct sta_info *sta)
{
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index fee9c5ee51ae..bb146f377ee4 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -656,6 +656,60 @@ static int ieee80211_tx_get_rates(struct ieee80211_hw *hw,
return rates_idx;
}
+void ieee80211_tx_status_noskb(struct ieee80211_hw *hw,
+ struct ieee80211_sta *pubsta,
+ struct ieee80211_tx_info *info)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_supported_band *sband;
+ int retry_count;
+ int rates_idx;
+ bool acked;
+
+ rates_idx = ieee80211_tx_get_rates(hw, info, &retry_count);
+
+ sband = hw->wiphy->bands[info->band];
+
+ acked = !!(info->flags & IEEE80211_TX_STAT_ACK);
+ if (pubsta) {
+ struct sta_info *sta;
+
+ sta = container_of(pubsta, struct sta_info, sta);
+
+ if (!acked)
+ sta->tx_retry_failed++;
+ sta->tx_retry_count += retry_count;
+
+ if (acked) {
+ sta->last_rx = jiffies;
+
+ if (sta->lost_packets)
+ sta->lost_packets = 0;
+
+ /* Track when last TDLS packet was ACKed */
+ if (test_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH))
+ sta->last_tdls_pkt_time = jiffies;
+ } else {
+ ieee80211_lost_packet(sta, info);
+ }
+
+ rate_control_tx_status_noskb(local, sband, sta, info);
+ }
+
+ if (acked) {
+ local->dot11TransmittedFrameCount++;
+ if (!pubsta)
+ local->dot11MulticastTransmittedFrameCount++;
+ if (retry_count > 0)
+ local->dot11RetryCount++;
+ if (retry_count > 1)
+ local->dot11MultipleRetryCount++;
+ } else {
+ local->dot11FailedCount++;
+ }
+}
+EXPORT_SYMBOL(ieee80211_tx_status_noskb);
+
void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
{
struct sk_buff *skb2;