diff options
| author | Michal Kazior <michal.kazior@tieto.com> | 2014-07-16 12:12:15 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-07-21 17:42:07 +0200 |
| commit | 08cf42e843f9a7e253502011c81677f61f7e5c42 (patch) | |
| tree | 0922a80812809c8ee2f2f64793b4754ea4b729a4 /net/mac80211/iface.c | |
| parent | 83eb935ec74a91468776cd86415abcb6ee23cca8 (diff) | |
| download | linux-08cf42e843f9a7e253502011c81677f61f7e5c42.tar.bz2 | |
mac80211: add support for Rx reordering offloading
Some drivers may be performing most of Tx/Rx
aggregation on their own (e.g. in firmware)
including AddBa/DelBa negotiations but may
otherwise require Rx reordering assistance.
The patch exports 2 new functions for establishing
Rx aggregation sessions in assumption device
driver has taken care of the necessary
negotiations.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
[fix endian bug]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/iface.c')
| -rw-r--r-- | net/mac80211/iface.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 2a12b8aa6aad..29be8854a027 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -1140,6 +1140,7 @@ static void ieee80211_iface_work(struct work_struct *work) struct sk_buff *skb; struct sta_info *sta; struct ieee80211_ra_tid *ra_tid; + struct ieee80211_rx_agg *rx_agg; if (!ieee80211_sdata_running(sdata)) return; @@ -1167,6 +1168,34 @@ static void ieee80211_iface_work(struct work_struct *work) ra_tid = (void *)&skb->cb; ieee80211_stop_tx_ba_cb(&sdata->vif, ra_tid->ra, ra_tid->tid); + } else if (skb->pkt_type == IEEE80211_SDATA_QUEUE_RX_AGG_START) { + rx_agg = (void *)&skb->cb; + mutex_lock(&local->sta_mtx); + sta = sta_info_get_bss(sdata, rx_agg->addr); + if (sta) { + u16 last_seq; + + last_seq = le16_to_cpu( + sta->last_seq_ctrl[rx_agg->tid]); + + __ieee80211_start_rx_ba_session(sta, + 0, 0, + ieee80211_sn_inc(last_seq), + 1, rx_agg->tid, + IEEE80211_MAX_AMPDU_BUF, + false); + } + mutex_unlock(&local->sta_mtx); + } else if (skb->pkt_type == IEEE80211_SDATA_QUEUE_RX_AGG_STOP) { + rx_agg = (void *)&skb->cb; + mutex_lock(&local->sta_mtx); + sta = sta_info_get_bss(sdata, rx_agg->addr); + if (sta) + __ieee80211_stop_rx_ba_session(sta, + rx_agg->tid, + WLAN_BACK_RECIPIENT, 0, + false); + mutex_unlock(&local->sta_mtx); } else if (ieee80211_is_action(mgmt->frame_control) && mgmt->u.action.category == WLAN_CATEGORY_BACK) { int len = skb->len; |