From: Arik Nemtsov Date: Mon, 18 Jun 2012 07:43:50 +0000 (+0300) Subject: mac80211: set only VO as a U-APSD enabled AC X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=d6a4ed6fe0a0d4790941e7f13e56630b8b9b053d;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git mac80211: set only VO as a U-APSD enabled AC Some APs experience problems when working with U-APSD. Decrease the probability of that happening by using legacy mode for all ACs but VO. The AP that caused us troubles was a Cisco 4410N. It ignores our setting, and always treats non-VO ACs as legacy. Signed-off-by: Arik Nemtsov Signed-off-by: Johannes Berg --- diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index ddf768f6350..34af2e5263c 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -55,11 +55,14 @@ struct ieee80211_local; #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024)) #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x)) +/* + * Some APs experience problems when working with U-APSD. Decrease the + * probability of that happening by using legacy mode for all ACs but VO. + * The AP that caused us trouble was a Cisco 4410N. It ignores our + * setting, and always treats non-VO ACs as legacy. + */ #define IEEE80211_DEFAULT_UAPSD_QUEUES \ - (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \ - IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \ - IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \ - IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) + IEEE80211_WMM_IE_STA_QOSINFO_AC_VO #define IEEE80211_DEFAULT_MAX_SP_LEN \ IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL