Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933530AbbFPJPT (ORCPT ); Tue, 16 Jun 2015 05:15:19 -0400 Received: from mail.kernel.org ([198.145.29.136]:55932 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756558AbbFPIpx (ORCPT ); Tue, 16 Jun 2015 04:45:53 -0400 From: lizf@kernel.org To: stable@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Arik Nemtsov , Johannes Berg , Zefan Li 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 Message-Id: <1434443826-4929-98-git-send-email-lizf@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1434443587-4599-1-git-send-email-lizf@kernel.org> References: <1434443587-4599-1-git-send-email-lizf@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1835 Lines: 53 From: Arik Nemtsov 3.4.108-rc1 review patch. If anyone has any objections, please let me know. ------------------ 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: Zefan Li --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/