mac80211: better rate control algorithm selection
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 <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index cac6cf2..09c2550 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -13,25 +13,17 @@
This option enables the hardware independent IEEE 802.11
networking stack.
-config MAC80211_RC_DEFAULT_CHOICE
- bool "Choose default rate control algorithm" if EMBEDDED
- default y
- depends on MAC80211
- ---help---
- This options enables selection of a default rate control
- algorithm to be built into the mac80211 module. Alternate
- rate control algorithms might be built into the mac80211
- module as well.
+menu "Rate control algorithm selection"
+ depends on MAC80211 != n
choice
prompt "Default rate control algorithm"
default MAC80211_RC_DEFAULT_PID
- depends on MAC80211 && MAC80211_RC_DEFAULT_CHOICE
---help---
This option selects the default rate control algorithm
mac80211 will use. Note that this default can still be
overriden through the ieee80211_default_rc_algo module
- parameter.
+ parameter if different algorithms are available.
config MAC80211_RC_DEFAULT_PID
bool "PID controller based rate control algorithm"
@@ -50,19 +42,27 @@
dumb algorithm. You should choose the PID rate control
instead.
+config MAC80211_RC_DEFAULT_NONE
+ bool "No default algorithm"
+ depends on EMBEDDED
+ help
+ Selecting this option will select no default algorithm
+ and allow you to not build any. Do not choose this
+ option unless you know your driver comes with another
+ suitable algorithm.
endchoice
+comment "Selecting 'y' for an algorithm will"
+comment "build the algorithm into mac80211."
+
config MAC80211_RC_DEFAULT
string
- depends on MAC80211
default "pid" if MAC80211_RC_DEFAULT_PID
default "simple" if MAC80211_RC_DEFAULT_SIMPLE
default ""
config MAC80211_RC_PID
- bool "PID controller based rate control algorithm"
- default y
- depends on MAC80211
+ tristate "PID controller based rate control algorithm"
---help---
This option enables a TX rate control algorithm for
mac80211 that uses a PID controller to select the TX
@@ -72,16 +72,15 @@
different rate control algorithm.
config MAC80211_RC_SIMPLE
- bool "Simple rate control algorithm (DEPRECATED)"
- default n
- depends on MAC80211
+ tristate "Simple rate control algorithm (DEPRECATED)"
---help---
This option enables a very simple, non-responsive TX
rate control algorithm. This algorithm is deprecated
- and will be removed from the kernel in near future.
+ and will be removed from the kernel in the near future.
It has been replaced by the PID algorithm.
Say N unless you know what you are doing.
+endmenu
config MAC80211_LEDS
bool "Enable LED triggers"