kernel.git/net/mac80211/Makefile, branch linux-2.6.25.y

mac80211: better rate control algorithm selection

2008-01-28T23:01:02Z

This patch changes mac80211's Kconfig/Makefile to: * select between the PID and the SIMPLE rate control algorithm as default * always allow tri-state for the rate control algorithms, building those that are selected 'y' into the mac80211 module (if that is a module, otherwise all into the kernel) * force the default rate control algorithm to be built into mac80211 It also makes both rate control algorithms proper modules again with MODULE_LICENSE etc. Only if EMBEDDED is the user allowed to select "NONE" as default which will cause no algorithm to be selected, this will work only when the driver brings one itself (e.g. iwlwifi drivers). Signed-off-by: Johannes Berg Signed-off-by: John W. Linville Signed-off-by: David S. Miller

rc80211-pid: add debugging

2008-01-28T22:59:44Z

This adds a new debugfs file from which rate control relevant events can be read one event per line. The output includes the current time, so graphs can be created showing the rate control parameters. This helps in evaluating and tuning rate control parameters. While at it, we split headers and code for better readability. Signed-off-by: Mattias Nissler Signed-off-by: Stefano Brivio Signed-off-by: John W. Linville Signed-off-by: David S. Miller

mac80211: make PID rate control algorithm the default

2008-01-28T22:59:41Z

This makes the new PID TX rate control algorithm the default instead of the rc80211_simple rate control algorithm. The simple algorithm was flawed in several ways: it wasn't responsive at all and didn't age the information it was relying on properly. The PID algorithm allows us to tune characteristics such as responsiveness by adjusting parameters and was found to generally behave better. The default algorithm can be overridden to select simple instead. Which ever algorithm is the default is included as part of the mac80211 module automatically. The other algorithm (simple vs. pid) can be selected for inclusion as well. If EMBEDDED is selected then the choice is available to have no default specified and neither algorithm included in mac80211. The default algorithm can be set through a modparam. While at it, mark rc80211-simple as deprecated, and schedule it for removal. Signed-off-by: Stefano Brivio Signed-off-by: John W. Linville Signed-off-by: David S. Miller

mac80211: add PID controller based rate control algorithm

2008-01-28T22:59:18Z

Add a new rate control algorithm based on a PID controller. It samples the percentage of failed frames over time, feeds the result into the controller and uses its output to control the TX rate. Signed-off-by: Mattias Nissler Signed-off-by: John W. Linville Signed-off-by: David S. Miller

mac80211: make simple rate control algorithm built-in

2007-11-11T05:59:23Z

Too frequently people do not have module autoloading enabled or fail to install the rate control module correctly, hence their hardware probing fails due to no rate control algorithm being available. This makes the 'simple' algorithm built into the mac80211 module unless EMBEDDED is enabled in which case it can be disabled (eg. if the wanted driver requires another rate control algorithm.) Signed-off-by: Johannes Berg Acked-by: Michael Buesch Signed-off-by: John W. Linville

[MAC80211]: rename ieee80211_cfg.c to cfg.c

2007-10-10T23:52:32Z

It's just painful to have the extra ieee80211_ prefix. Signed-off-by: Johannes Berg Signed-off-by: Michael Wu Signed-off-by: John W. Linville Signed-off-by: David S. Miller

[MAC80211]: refactor event sending

2007-10-10T23:48:47Z

Create a new file event.c that will contain code to send mac/mlme events to userspace. For now put the Michael MIC failure condition into it and remove sending of that condition via the management interface, hostapd interestingly doesn't do anything when it gets such a packet besides printing a message, it reacts only on the private iwevent. Signed-off-by: Johannes Berg Acked-by: Michael Wu Signed-off-by: John W. Linville Signed-off-by: David S. Miller

[MAC80211]: introduce util.c

2007-10-10T23:47:36Z

Introduce a new file util.c and move a whole bunch of functions into it. Signed-off-by: Johannes Berg Signed-off-by: Jiri Benc Signed-off-by: John W. Linville

[MAC80211]: split out some key functions from ieee80211.c

2007-10-10T23:47:34Z

into a new file key.c which doesn't have much code right now but it makes ieee80211.c easier to read. Signed-off-by: Johannes Berg Signed-off-by: Jiri Benc Signed-off-by: John W. Linville

[MAC80211]: split TX path into own file

2007-10-10T23:47:33Z

Signed-off-by: Johannes Berg Signed-off-by: Jiri Benc Signed-off-by: John W. Linville