kernel.git/net/mac80211/agg-tx.c, branch linux-3.7.y

mac80211: don't send delBA on addBA failure

2012-09-21T14:14:14Z

There's no reason to send a delBA when the peer refused our addBA, so change that. Signed-off-by: Johannes Berg

mac80211: request TX status for BlockAck Requests

2012-07-07T19:35:42Z

Because ieee80211_tx_status in status.c checks if outgoing BlockAck requests have been acked, it is necessary to tell the driver that tx feedback for this sort of frame is important. Otherwise, the stack will continue to send the same BlockAck request over and over, which can cause the receiver to flush or clean its reorder buffer over and over. Signed-off-by: Christian Lamparter Signed-off-by: Johannes Berg

mac80211: clean up debugging

2012-06-24T09:32:29Z

There are a few things that make the logging and debugging in mac80211 less useful than it should be right now: * a lot of messages should be pr_info, not pr_debug * wholesale use of pr_debug makes it require *both* Kconfig and dynamic configuration * there are still a lot of ifdefs * the style is very inconsistent, sometimes the sdata->name is printed in front Clean up everything, introducing new macros and separating out the station MLME debugging into a new Kconfig symbol. Signed-off-by: Johannes Berg

net: mac80211: Add and use ht_vdbg debugging macro

2012-06-05T19:32:10Z

Simplify the use of #ifdef CONFIG_MAC80211_HT_DEBUG/#endif by adding a logging macro to encapsulate the test. Convert the appropriate uses too. Signed-off-by: Joe Perches Signed-off-by: John W. Linville

net: mac80211: Convert printk(KERN_DEBUG to pr_debug

2012-06-05T19:27:16Z

Standardize the debugging to be able to use dynamic_debug. Coalesce formats, align arguments. Signed-off-by: Joe Perches Signed-off-by: John W. Linville

mac80211: fix TX aggregation session timer

2012-05-16T16:46:04Z

In commit 12d3952fc4a1cd96234bc7023bf7eefeb0bb6355 ("mac80211: optimize aggregation session timeout handling") two bugs were introduced: 1) RCU usage was completely broken since no locks are held 2) the timer must not rearm when agg session is stopping Reported-and-tested-by: Larry Finger Cc: Felix Fietkau Signed-off-by: Johannes Berg Signed-off-by: John W. Linville

mac80211: add improved HW queue control

2012-04-11T20:23:50Z

mac80211 currently only supports one hardware queue per AC. This is already problematic for off-channel uses since if we go off channel while the BE queue is full and then try to send an off-channel frame the frame will never go out. This will become worse when we support multi-channel since then a queue on one channel might be full, but we have to stop the software queue for all channels. That is obviously not desirable. To address this problem allow drivers to register more hardware queues, and allow them to map them to virtual interfaces. When they stop a hardware queue the corresponding AC software queues on the correct interfaces will be stopped as well. Additionally, there's an off-channel queue to solve that problem and a per-interface after-DTIM beacon queue. This allows drivers to manage software queues closer to how the hardware works. Currently, there's a limit of 16 hardware queues. This may or may not be sufficient, we can adjust it as needed. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville

mac80211: optimize aggregation session timeout handling

2012-04-09T20:09:36Z

Calling mod_timer from the rx/tx hotpath is somewhat expensive, and the timeout doesn't need to be so precise. Switch to a different strategy: Schedule the timer initially, store jiffies of all last rx/tx activity which would previously modify the timer, and let the timer re-arm itself after checking the last rx/tx timestamp. Make the session timers deferrable to avoid causing extra wakeups on systems running on battery. This visibly reduces CPU load under high network load on small embedded systems. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

mac80211: split addba retries in time

2011-12-19T19:31:37Z

Currently code allows three (HT_AGG_MAX_RETRIES) unanswered addba requests. When this limit is reached aggregation is turned off for given TID permanently. This doesn't seem right: three requests is not that much, some 'blackout' can happen, but effect of it affects whole connection indefinitely. This patch increases number of retries to 15. Also, when there have been 3 or more retries it splits further retries apart by 15 seconds instead of sending them in very short period of time. Signed-off-by: Nikolay Martynov Signed-off-by: John W. Linville

mac80211: Use appropriate TID for sending BAR, ADDBA and DELBA frames

2011-12-15T19:46:35Z

Currently BAR, ADDBA and DELBA frames are always sent using AC_VO. If the TID for which a BA session is established is assigned to a different queue BAR, ADDBA and DELBA frames can "overtake" frames of the according BA session. Hence, always put BA session related frames into the same queue as the BA sessions data frames. Signed-off-by: Helmut Schaa Signed-off-by: John W. Linville