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| author | Ron Rindjunsky <ron.rindjunsky@intel.com> | 2008-07-01 14:16:03 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-07-08 10:21:34 -0400 |
| commit | 429a380571a6e6b8525b93161544eafc9b227e44 (patch) | |
| tree | a90ad1cba6ea557ace90a74ea02af9d5bcad36c1 /net/mac80211/mlme.c | |
| parent | b2898a27809f54a33050a70d0eaa4a78194163a0 (diff) | |
| download | linux-429a380571a6e6b8525b93161544eafc9b227e44.tar.gz linux-429a380571a6e6b8525b93161544eafc9b227e44.tar.bz2 linux-429a380571a6e6b8525b93161544eafc9b227e44.zip | |
mac80211: add block ack request capability
This patch adds block ack request capability
Signed-off-by: Ester Kummer <ester.kummer@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 86abdf96390c..e080482b63cd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1536,6 +1536,35 @@ void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid, ieee80211_sta_tx(dev, skb, 0); } +void ieee80211_send_bar(struct net_device *dev, u8 *ra, u16 tid, u16 ssn) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct sk_buff *skb; + struct ieee80211_bar *bar; + u16 bar_control = 0; + + skb = dev_alloc_skb(sizeof(*bar) + local->hw.extra_tx_headroom); + if (!skb) { + printk(KERN_ERR "%s: failed to allocate buffer for " + "bar frame\n", dev->name); + return; + } + skb_reserve(skb, local->hw.extra_tx_headroom); + bar = (struct ieee80211_bar *)skb_put(skb, sizeof(*bar)); + memset(bar, 0, sizeof(*bar)); + bar->frame_control = IEEE80211_FC(IEEE80211_FTYPE_CTL, + IEEE80211_STYPE_BACK_REQ); + memcpy(bar->ra, ra, ETH_ALEN); + memcpy(bar->ta, dev->dev_addr, ETH_ALEN); + bar_control |= (u16)IEEE80211_BAR_CTRL_ACK_POLICY_NORMAL; + bar_control |= (u16)IEEE80211_BAR_CTRL_CBMTID_COMPRESSED_BA; + bar_control |= (u16)(tid << 12); + bar->control = cpu_to_le16(bar_control); + bar->start_seq_num = cpu_to_le16(ssn); + + ieee80211_sta_tx(dev, skb, 0); +} + void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid, u16 initiator, u16 reason) { |