From bbbdff9e00449928f228867076a07bdfecd3dca8 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Thu, 16 Apr 2009 13:27:42 +0200 Subject: [PATCH] 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 Signed-off-by: John W. Linville --- net/mac80211/Kconfig | 16 ++++++++++++++++ net/mac80211/mlme.c | 8 ++++++++ 2 files changed, 24 insertions(+) diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index ecc3faf9f11a..9cbf545e95a2 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 7a8d4c494246..a16c9d724be1 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 */ -- 2.39.5