lwn.git/drivers/net/wireless/ath/ath9k/rc.c, branch docs-fixes

ath9k: Remove ath9k rate control

2014-02-12T20:36:04+00:00

There is no benefit in retaining the legacy rate control module in the driver codebase. It is known to be buggy and has less than optimal performance in real-world environments compared with minstrel. The only reason that it was kept when we made the switch to minstrel as default was that it showed higher throughput numbers in a clean/ideal environment. This is no longer the case and minstrel can push ath9k to the same throughput levels. In TCP, with 3-stream cards, more than 295 Mbps can be obtained in open air, with 2-stream cards, 210 Mbps is easily reached. To test performance issues, instead of using a broken rate control module, it is better to use the fixed-rate interface provided by mac80211 anyway. The ath9k RC has not received any bug fixes in years and is just bit-rotting away - this patch removes it. Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville

mac80211: remove module handling from rate control ops

2014-02-04T20:48:26+00:00

There's not a single rate control algorithm actually in a separate module where the module refcount would be required. Similarly, there's no specific rate control module. Therefore, all the module handling code in rate control is really just dead code, so remove it. Signed-off-by: Johannes Berg

mac80211: make rate control ops const

2014-02-04T20:48:21+00:00

Change the code to allow making all the rate control ops const, nothing ever needs to change them. Also change all drivers to make use of this and mark the ops const. Signed-off-by: Johannes Berg

ath9k: replace snprintf() with scnprintf()

2013-09-26T19:13:35+00:00

Whenever the return value of snprintf() is used to calculate remaining buffer-space, we wanted to use sncprintf() instead. Indentation is adapted where possible. Some lines exceed the line width limit, either they did it already before, or since they can not be broken reasonably well. Signed-off-by: Zefir Kurtisi Signed-off-by: John W. Linville

ath9k: set 5/10 MHz supported channels and fix bitrate

2013-08-16T18:17:48+00:00

Signed-off-by: Simon Wunderlich Signed-off-by: Mathias Kretschmer Signed-off-by: John W. Linville

ath9k: use chandef instead of channel_type

2013-08-16T18:17:47+00:00

To enable support for 5/10 MHz, some internal functions must be converted from using the (old) channel_type to chandef. This is a good chance to change all remaining occurences. Signed-off-by: Simon Wunderlich Signed-off-by: Mathias Kretschmer Signed-off-by: John W. Linville

mac80211/rc80211: add chandef to rate initialization

2013-07-16T06:58:02+00:00

5 and 10 MHz support needs to know the current operating channel width, add the chandef to the rate control API. Signed-off-by: Simon Wunderlich Signed-off-by: Mathias Kretschmer Signed-off-by: Johannes Berg

ath9k: prevent aggregation session deadlocks

2013-05-22T18:28:44+00:00

Waiting for all subframes of an existing aggregation session to drain before allowing mac80211 to start a new one is fragile and deadlocks caused by this behavior have been observed. Since mac80211 has proper synchronization for aggregation session start/stop handling, a better approach to session handling is to simply allow mac80211 to start a new session at any time. This requires changing the code to discard any packets outside of the BlockAck window in the A-MPDU software retry code. This patch implements the above and also simplifies the code. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville

mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chan

2013-03-25T18:19:35+00:00

Drivers that don't use chanctxes cannot perform VHT association because they still use a "backward compatibility" pair of {ieee80211_channel, nl80211_channel_type} in ieee80211_conf and ieee80211_local. Signed-off-by: Karl Beldan [fix kernel-doc] Signed-off-by: Johannes Berg

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem

2013-02-18T18:47:13+00:00

Conflicts: drivers/net/wireless/iwlwifi/dvm/tx.c drivers/net/wireless/ti/wlcore/sdio.c drivers/net/wireless/ti/wlcore/spi.c