From 9a640c0a30fa30022060eaa2908589ffd7cfbc1f Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Mon, 18 Jun 2012 10:43:50 +0300 Subject: [PATCH] mac80211: set only VO as a U-APSD enabled AC commit d6a4ed6fe0a0d4790941e7f13e56630b8b9b053d upstream. 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 Signed-off-by: Ben Hutchings --- net/mac80211/ieee80211_i.h | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index a9cf593f107f..cf7e7d337e49 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -53,11 +53,14 @@ struct ieee80211_local; #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024)) +/* + * 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 -- 2.39.5