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| 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/trace.h | |
| parent | 60854fd94573f0d3b80b55b40cf0140a0430f3ab (diff) | |
| download | linux-stable-f59374eb427fb1377fdb7b8b3691c48e0c77a3c4.tar.gz linux-stable-f59374eb427fb1377fdb7b8b3691c48e0c77a3c4.tar.bz2 linux-stable-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/trace.h')
| -rw-r--r-- | net/mac80211/trace.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h index 2b0a17ee907a..8c3b7ae103bc 100644 --- a/net/mac80211/trace.h +++ b/net/mac80211/trace.h @@ -1,3 +1,8 @@ +/* +* Portions of this file +* Copyright(c) 2016 Intel Deutschland GmbH +*/ + #if !defined(__MAC80211_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ) #define __MAC80211_DRIVER_TRACE @@ -899,6 +904,13 @@ DEFINE_EVENT(sta_event, drv_sta_pre_rcu_remove, TP_ARGS(local, sdata, sta) ); +DEFINE_EVENT(sta_event, drv_sync_rx_queues, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_sta *sta), + TP_ARGS(local, sdata, sta) +); + DEFINE_EVENT(sta_event, drv_sta_rate_tbl_update, TP_PROTO(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata, |