diff options
Diffstat (limited to 'net/mac80211/status.c')
| -rw-r--r-- | net/mac80211/status.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 8695cd11dfd9..bed7e32ed908 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -161,6 +161,15 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb) ieee80211_sta_tx_notify(sdata, (void *) skb->data); } +/* + * Use a static threshold for now, best value to be determined + * by testing ... + * Should it depend on: + * - on # of retransmissions + * - current throughput (higher value for higher tpt)? + */ +#define STA_LOST_PKT_THRESHOLD 50 + void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) { struct sk_buff *skb2; @@ -247,6 +256,19 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (!(info->flags & IEEE80211_TX_CTL_INJECTED) && (info->flags & IEEE80211_TX_STAT_ACK)) ieee80211_frame_acked(sta, skb); + + if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) { + if (info->flags & IEEE80211_TX_STAT_ACK) { + if (sta->lost_packets) + sta->lost_packets = 0; + } else if (++sta->lost_packets >= STA_LOST_PKT_THRESHOLD) { + cfg80211_cqm_pktloss_notify(sta->sdata->dev, + sta->sta.addr, + sta->lost_packets, + GFP_ATOMIC); + sta->lost_packets = 0; + } + } } rcu_read_unlock(); |