From patchwork Fri Jan 6 13:05:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislaw Gruszka X-Patchwork-Id: 9500923 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id A57EA606B4 for ; Fri, 6 Jan 2017 13:11:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9CC772846F for ; Fri, 6 Jan 2017 13:11:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 919EA28481; Fri, 6 Jan 2017 13:11:29 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4DD872846F for ; Fri, 6 Jan 2017 13:11:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1033921AbdAFNLR (ORCPT ); Fri, 6 Jan 2017 08:11:17 -0500 Received: from mx1.redhat.com ([209.132.183.28]:51362 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1033943AbdAFNKE (ORCPT ); Fri, 6 Jan 2017 08:10:04 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id D96168050B; Fri, 6 Jan 2017 13:09:56 +0000 (UTC) Received: from localhost (vpn1-4-234.ams2.redhat.com [10.36.4.234]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v06D9t2B023953; Fri, 6 Jan 2017 08:09:56 -0500 From: Stanislaw Gruszka To: linux-wireless@vger.kernel.org Cc: Helmut Schaa , Mathias Kresin Subject: [PATCH 5/9] rt2800: tune TX_RTS_CFG config Date: Fri, 6 Jan 2017 14:05:14 +0100 Message-Id: <1483707918-31480-6-git-send-email-sgruszka@redhat.com> In-Reply-To: <1483707918-31480-1-git-send-email-sgruszka@redhat.com> References: <1483707918-31480-1-git-send-email-sgruszka@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Fri, 06 Jan 2017 13:09:56 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Enable RTS frame retry fall-back and limit number of RTS retries to 7 what is default number of retries for small frames. As RTS/CTS is used for TXOP protection, those settings prevent posting lots of RTS frames when remote station do not response with CTS at the moment. After sending 7 RTS's the HW will start back-off mechanism and after it will start posing RTS again to get access to the medium. Signed-off-by: Stanislaw Gruszka --- drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index 4833ec6..1f4a120 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -4902,10 +4902,10 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) rt2800_register_write(rt2x00dev, TXOP_HLDR_ET, reg); rt2800_register_read(rt2x00dev, TX_RTS_CFG, ®); - rt2x00_set_field32(®, TX_RTS_CFG_AUTO_RTS_RETRY_LIMIT, 32); + rt2x00_set_field32(®, TX_RTS_CFG_AUTO_RTS_RETRY_LIMIT, 7); rt2x00_set_field32(®, TX_RTS_CFG_RTS_THRES, IEEE80211_MAX_RTS_THRESHOLD); - rt2x00_set_field32(®, TX_RTS_CFG_RTS_FBK_EN, 0); + rt2x00_set_field32(®, TX_RTS_CFG_RTS_FBK_EN, 1); rt2800_register_write(rt2x00dev, TX_RTS_CFG, reg); rt2800_register_write(rt2x00dev, EXP_ACK_TIME, 0x002400ca);