From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933377AbaEKTX5 (ORCPT ); Sun, 11 May 2014 15:23:57 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:48246 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933323AbaEKTXy (ORCPT ); Sun, 11 May 2014 15:23:54 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Felix Fietkau , "John W. Linville" Subject: [PATCH 3.14 47/83] ath9k: fix ready time of the multicast buffer queue Date: Sun, 11 May 2014 21:19:48 +0200 Message-Id: <20140511191913.309947557@linuxfoundation.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <20140511191907.024339448@linuxfoundation.org> References: <20140511191907.024339448@linuxfoundation.org> User-Agent: quilt/0.60-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Felix Fietkau commit 3b3e0efb5c72c4fc940af50b33626b8a78a907dc upstream. qi->tqi_readyTime is written directly to registers that expect microseconds as unit instead of TU. When setting the CABQ ready time, cur_conf->beacon_interval is in TU, so convert it to microseconds before passing it to ath9k_hw. This should hopefully fix some Tx DMA issues with buffered multicast frames in AP mode. Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1698,7 +1698,7 @@ int ath_cabq_update(struct ath_softc *sc ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi); - qi.tqi_readyTime = (cur_conf->beacon_interval * + qi.tqi_readyTime = (TU_TO_USEC(cur_conf->beacon_interval) * ATH_CABQ_READY_TIME) / 100; ath_txq_update(sc, qnum, &qi);