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authorJohannes Berg <johannes.berg@intel.com>2011-09-29 16:04:32 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-09-30 15:57:15 -0400
commit4049e09acdf4ffd270cb8fbf1cf5b39c3d02357c (patch)
tree87aa0bc08650b5cc745733fcf422dcf871caeb43 /net/mac80211/driver-trace.h
parent8a8656fa5bbbc8568348d95184d374edb03a48b7 (diff)
downloadop-kernel-dev-4049e09acdf4ffd270cb8fbf1cf5b39c3d02357c.zip
op-kernel-dev-4049e09acdf4ffd270cb8fbf1cf5b39c3d02357c.tar.gz
mac80211: allow releasing driver-buffered frames
If there are frames for a station buffered in the driver, mac80211 announces those in the TIM IE but there's no way to release them. Add new API to release such frames and use it when the station polls for a frame. Since the API will soon also be used for uAPSD it is easily extensible. Note that before this change drivers announcing driver-buffered frames in the TIM bit actually will respond to a PS-Poll with a potentially lower priority frame (if there are any frames buffered in mac80211), after this patch a driver that hasn't been changed will no longer respond at all. This only affects ath9k, which will need to be fixed to implement the new API. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/driver-trace.h')
-rw-r--r--net/mac80211/driver-trace.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/net/mac80211/driver-trace.h b/net/mac80211/driver-trace.h
index a46b279..531fbd0 100644
--- a/net/mac80211/driver-trace.h
+++ b/net/mac80211/driver-trace.h
@@ -1129,6 +1129,41 @@ TRACE_EVENT(drv_rssi_callback,
)
);
+TRACE_EVENT(drv_release_buffered_frames,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sta *sta,
+ u16 tids, int num_frames,
+ enum ieee80211_frame_release_type reason,
+ bool more_data),
+
+ TP_ARGS(local, sta, tids, num_frames, reason, more_data),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ STA_ENTRY
+ __field(u16, tids)
+ __field(int, num_frames)
+ __field(int, reason)
+ __field(bool, more_data)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ STA_ASSIGN;
+ __entry->tids = tids;
+ __entry->num_frames = num_frames;
+ __entry->reason = reason;
+ __entry->more_data = more_data;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT STA_PR_FMT
+ " TIDs:0x%.4x frames:%d reason:%d more:%d",
+ LOCAL_PR_ARG, STA_PR_ARG, __entry->tids, __entry->num_frames,
+ __entry->reason, __entry->more_data
+ )
+);
+
/*
* Tracing for API calls that drivers call.
*/
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