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mac80211: Stop BA session event from device

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Some devices support BT/WLAN co-existence algorigthms.
In order not to harm the system performance and user experience, the device
requests not to allow any RX BA session and tear down existing RX BA sessions
based on system constraints such as periodic BT activity that needs to limit
WLAN activity (eg.SCO or A2DP).
In such cases, the intention is to limit the duration of the RX PPDU and
therefore prevent the peer device to use A-MPDU aggregation.

Adding ieee80211_stop_rx_ba_session() callback
that can be used by the driver to stop existing BA sessions.

Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Shahar Levi
2011-05-22 16:10:21 +03:00
committed by John W. Linville
parent 41bfce8ede
commit f41ccd71d8
4 changed files with 41 additions and 0 deletions
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6
net/mac80211/ht.c
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@@ -140,6 +140,12 @@ void ieee80211_ba_session_work(struct work_struct *work)
sta, tid, WLAN_BACK_RECIPIENT,
WLAN_REASON_QSTA_TIMEOUT, true);
if (test_and_clear_bit(tid,
sta->ampdu_mlme.tid_rx_stop_requested))
___ieee80211_stop_rx_ba_session(
sta, tid, WLAN_BACK_RECIPIENT,
WLAN_REASON_UNSPECIFIED, true);
tid_tx = sta->ampdu_mlme.tid_start_tx[tid];
if (tid_tx) {
/*