diff options
| author | Sara Sharon <sara.sharon@intel.com> | 2016-03-02 23:46:14 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-04-05 10:56:34 +0200 |
| commit | f59374eb427fb1377fdb7b8b3691c48e0c77a3c4 (patch) | |
| tree | 22dc87f3a538de0b26473cdd96d79c93f61c8f2b /net/mac80211/driver-ops.h | |
| parent | 60854fd94573f0d3b80b55b40cf0140a0430f3ab (diff) | |
| download | lwn-f59374eb427fb1377fdb7b8b3691c48e0c77a3c4.tar.gz lwn-f59374eb427fb1377fdb7b8b3691c48e0c77a3c4.zip | |
mac80211: synchronize driver rx queues before removing a station
Some devices, like iwlwifi, have RSS queues. This may cause a
situation where a disassociation is handled in control path and
results in station removal while there are prior RX frames
that were still not processed in other queues. When they will
be processed the station will be gone, and the frames will be
dropped.
Add a synchronization interface to avoid that. When driver returns
from the synchronization mac80211 may remove the station.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/driver-ops.h')
| -rw-r--r-- | net/mac80211/driver-ops.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h index 18b0d65baff0..184473c257eb 100644 --- a/net/mac80211/driver-ops.h +++ b/net/mac80211/driver-ops.h @@ -1,3 +1,8 @@ +/* +* Portions of this file +* Copyright(c) 2016 Intel Deutschland GmbH +*/ + #ifndef __MAC80211_DRIVER_OPS #define __MAC80211_DRIVER_OPS @@ -29,6 +34,16 @@ static inline void drv_tx(struct ieee80211_local *local, local->ops->tx(&local->hw, control, skb); } +static inline void drv_sync_rx_queues(struct ieee80211_local *local, + struct sta_info *sta) +{ + if (local->ops->sync_rx_queues) { + trace_drv_sync_rx_queues(local, sta->sdata, &sta->sta); + local->ops->sync_rx_queues(&local->hw); + trace_drv_return_void(local); + } +} + static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata, u32 sset, u8 *data) { |