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openwrt-xburst/package/mac80211/patches/570-mac80211_send_bar.patch
nbd 1a4ef9611e ath9k: rework handling of sending BlockAckReq frames, should hopefully lead to fewer latency spikes
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27888 3c298f89-4303-0410-b956-a3cf2f4a3e73
2011-08-04 00:35:12 +00:00

65 lines
2.3 KiB
Diff

--- a/net/mac80211/agg-tx.c
+++ b/net/mac80211/agg-tx.c
@@ -109,8 +109,9 @@ static void ieee80211_send_addba_request
ieee80211_tx_skb(sdata, skb);
}
-void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn)
+void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn)
{
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_local *local = sdata->local;
struct sk_buff *skb;
struct ieee80211_bar *bar;
@@ -138,6 +139,7 @@ void ieee80211_send_bar(struct ieee80211
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
}
+EXPORT_SYMBOL(ieee80211_send_bar);
void ieee80211_assign_tid_tx(struct sta_info *sta, int tid,
struct tid_ampdu_tx *tid_tx)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3007,6 +3007,19 @@ void ieee80211_remain_on_channel_expired
void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap,
const u8 *addr);
+/**
+ * ieee80211_send_bar - send a BlockAckReq frame
+ *
+ * can be used to flush pending frames from the peer's aggregation reorder
+ * buffer.
+ *
+ * @vif: &struct ieee80211_vif pointer from the add_interface callback.
+ * @ra: the peer's destination address
+ * @tid: the TID of the aggregation session
+ * @ssn: the new starting sequence number for the receiver
+ */
+void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn);
+
/* Rate control API */
/**
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1225,7 +1225,6 @@ struct ieee80211_tx_status_rtap_hdr {
void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
struct ieee80211_ht_cap *ht_cap_ie,
struct ieee80211_sta_ht_cap *ht_cap);
-void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
const u8 *da, u16 tid,
u16 initiator, u16 reason_code);
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -239,7 +239,7 @@ void ieee80211_tx_status(struct ieee8021
tid = qc[0] & 0xf;
ssn = ((le16_to_cpu(hdr->seq_ctrl) + 0x10)
& IEEE80211_SCTL_SEQ);
- ieee80211_send_bar(sta->sdata, hdr->addr1,
+ ieee80211_send_bar(&sta->sdata->vif, hdr->addr1,
tid, ssn);
}