diff options
| author | Juuso Oikarinen <juuso.oikarinen@nokia.com> | 2010-04-27 12:47:40 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-04-27 16:09:22 -0400 |
| commit | 195e294d21e88af879da4f88db2ceeb4ec28a755 (patch) | |
| tree | 22a75db60cc8743888054460db85eb9a76b0cecb | |
| parent | 3a37495268ab45507b4cab9d4cb18c5496ab7a10 (diff) | |
| download | op-kernel-dev-195e294d21e88af879da4f88db2ceeb4ec28a755.zip op-kernel-dev-195e294d21e88af879da4f88db2ceeb4ec28a755.tar.gz | |
mac80211: Determine dynamic PS timeout based on ps-qos network latency
Determine the dynamic PS timeout based on the configured ps-qos network
latency. For backwards wext compatibility, allow the dynamic PS timeout
configured by the cfg80211 to overrule the automatically determined value.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | include/net/mac80211.h | 5 | ||||
| -rw-r--r-- | net/mac80211/cfg.c | 4 | ||||
| -rw-r--r-- | net/mac80211/main.c | 2 | ||||
| -rw-r--r-- | net/mac80211/mlme.c | 21 |
4 files changed, 29 insertions, 3 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 7dc5a67..c26de6c 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -668,6 +668,9 @@ enum ieee80211_smps_mode { * @dynamic_ps_timeout: The dynamic powersave timeout (in ms), see the * powersave documentation below. This variable is valid only when * the CONF_PS flag is set. + * @dynamic_ps_forced_timeout: The dynamic powersave timeout (in ms) configured + * by cfg80211 (essentially, wext) If set, this value overrules the value + * chosen by mac80211 based on ps qos network latency. * * @power_level: requested transmit power (in dBm) * @@ -687,7 +690,7 @@ enum ieee80211_smps_mode { */ struct ieee80211_conf { u32 flags; - int power_level, dynamic_ps_timeout; + int power_level, dynamic_ps_timeout, dynamic_ps_forced_timeout; int max_sleep_period; u16 listen_interval; diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index e13fb3a..b575a50 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -1404,11 +1404,11 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, return -EOPNOTSUPP; if (enabled == sdata->u.mgd.powersave && - timeout == conf->dynamic_ps_timeout) + timeout == conf->dynamic_ps_forced_timeout) return 0; sdata->u.mgd.powersave = enabled; - conf->dynamic_ps_timeout = timeout; + conf->dynamic_ps_forced_timeout = timeout; /* no change, but if automatic follow powersave */ mutex_lock(&sdata->u.mgd.mtx); diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 4afe851..ebcca0e 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -569,6 +569,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) local->hw.conf.listen_interval = local->hw.max_listen_interval; + local->hw.conf.dynamic_ps_forced_timeout = -1; + result = sta_info_start(local); if (result < 0) goto fail_sta_info; diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index d811e3f..2d1a2be 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -475,6 +475,7 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) { struct ieee80211_sub_if_data *sdata, *found = NULL; int count = 0; + int timeout; if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) { local->ps_sdata = NULL; @@ -508,6 +509,26 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) beaconint_us = ieee80211_tu_to_usec( found->vif.bss_conf.beacon_int); + timeout = local->hw.conf.dynamic_ps_forced_timeout; + if (timeout < 0) { + /* + * The 2 second value is there for compatibility until + * the PM_QOS_NETWORK_LATENCY is configured with real + * values. + */ + if (latency == 2000000000) + timeout = 100; + else if (latency <= 50000) + timeout = 300; + else if (latency <= 100000) + timeout = 100; + else if (latency <= 500000) + timeout = 50; + else + timeout = 0; + } + local->hw.conf.dynamic_ps_timeout = timeout; + if (beaconint_us > latency) { local->ps_sdata = NULL; } else { |
