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authorJohannes Berg <johannes@sipsolutions.net>2009-04-16 13:27:42 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-04-22 16:57:16 -0400
commitbbbdff9e00449928f228867076a07bdfecd3dca8 (patch)
tree466fdd25ed76362a44482465ccdfc2c8de4ceb97 /net
parentd91f36db51661018f6d54ff5966e283bcec4c545 (diff)
mac80211: enable PS by default
Enable PS by default (depending on Kconfig) -- rely on drivers to control the level using pm_qos. Due to the previous patch we turn off PS when necessary due to latency requirements. This has a Kconfig symbol so people can, if they really want, configure the default in their kernels. We may want to keep it at "default y" only in wireless-testing for a while. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/Kconfig16
-rw-r--r--net/mac80211/mlme.c8
2 files changed, 24 insertions, 0 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index ecc3faf9f11..9cbf545e95a 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -11,6 +11,22 @@ config MAC80211
This option enables the hardware independent IEEE 802.11
networking stack.
+config MAC80211_DEFAULT_PS
+ bool "enable powersave by default"
+ depends on MAC80211
+ default y
+ help
+ This option enables powersave mode by default.
+
+ If this causes your applications to misbehave you should fix your
+ applications instead -- they need to register their network
+ latency requirement, see Documentation/power/pm_qos_interface.txt.
+
+config MAC80211_DEFAULT_PS_VALUE
+ int
+ default 1 if MAC80211_DEFAULT_PS
+ default 0
+
menu "Rate control algorithm selection"
depends on MAC80211 != n
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7a8d4c49424..a16c9d724be 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2192,6 +2192,7 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd;
+ u32 hw_flags;
ifmgd = &sdata->u.mgd;
INIT_WORK(&ifmgd->work, ieee80211_sta_work);
@@ -2211,6 +2212,13 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
IEEE80211_STA_AUTO_CHANNEL_SEL;
if (sdata->local->hw.queues >= 4)
ifmgd->flags |= IEEE80211_STA_WMM_ENABLED;
+
+ hw_flags = sdata->local->hw.flags;
+
+ if (hw_flags & IEEE80211_HW_SUPPORTS_PS) {
+ ifmgd->powersave = CONFIG_MAC80211_DEFAULT_PS_VALUE;
+ sdata->local->hw.conf.dynamic_ps_timeout = 500;
+ }
}
/* configuration hooks */