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| 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 /net/mac80211/mlme.c | |
| parent | 3a37495268ab45507b4cab9d4cb18c5496ab7a10 (diff) | |
| download | lwn-195e294d21e88af879da4f88db2ceeb4ec28a755.tar.gz lwn-195e294d21e88af879da4f88db2ceeb4ec28a755.zip | |
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>
Diffstat (limited to 'net/mac80211/mlme.c')
| -rw-r--r-- | net/mac80211/mlme.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index d811e3fa1d75..2d1a2bef366d 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 { |