| From | lizf@kernel ... | Subject | [PATCH 3.4 098/172] mac80211: set only VO as a U-APSD enabled AC | Date | Tue, 16 Jun 2015 16:35:52 +0800 |
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From: Arik Nemtsov <arik@wizery.com>
3.4.108-rc1 review patch. If anyone has any objections, please let me know.
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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 <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Zefan Li <lizefan@huawei.com> --- 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 226be13..f5a0a96 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -54,11 +54,14 @@ 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 -- 1.9.1
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