From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64F90C433E0 for ; Wed, 15 Jul 2020 09:14:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3ED1E20672 for ; Wed, 15 Jul 2020 09:14:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="VKoA1S7u" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730295AbgGOJO0 (ORCPT ); Wed, 15 Jul 2020 05:14:26 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:25246 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729577AbgGOJO0 (ORCPT ); Wed, 15 Jul 2020 05:14:26 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1594804465; h=Date: Message-Id: Cc: To: References: In-Reply-To: From: Subject: Content-Transfer-Encoding: MIME-Version: Content-Type: Sender; bh=DV6aQhqvJbzRZ/tZSDCPBunW2l7bqThKNjTKlPlGBwk=; b=VKoA1S7u/hxyMJPvcwbSILv9btpk8Clo2bvJt9+vOJFkpbK/yfcdV1KBO35b5Tt2dGzx3bCL Dp1+0ZSo7PbyZwt0pe00uIz38Eq4ieCfiU+dq8BHfxUvIa7K3E/IbXUY4Tw1XAi7vzkvlvJg mwU3pgQAooyuqO6DmihJ/oSsM6g= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n19.prod.us-west-2.postgun.com with SMTP id 5f0ec8f11012768490bb1438 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 15 Jul 2020 09:14:25 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 714A0C433CB; Wed, 15 Jul 2020 09:14:25 +0000 (UTC) Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id 50610C433CA; Wed, 15 Jul 2020 09:14:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 50610C433CA Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [PATCH] rtw88: coex: Fix ACL Tx pause during BT inquiry/page. From: Kalle Valo In-Reply-To: <20200715023324.8600-1-yhchuang@realtek.com> References: <20200715023324.8600-1-yhchuang@realtek.com> To: Cc: , User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.5.2 Message-Id: <20200715091425.714A0C433CB@smtp.codeaurora.org> Date: Wed, 15 Jul 2020 09:14:25 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org wrote: > From: Zong-Zhe Yang > > Add a set of logic with corresponding coexistence parameters to > handle the situation under BT inquiry/page. > > We will set PSTDMA while WL-Busy + BT inquiry/page to separate > WL/BT slots. PSTDMA can protect WL data rate and BT performance. > > If WL-Busy + BT inquiry/page and there was BT device paired, > We will set the mechanism to 4Slot PSTDMA. > In 4Slot PSTDMA, the paired devices can perform more smoothly > and prevent some issues trigger from insufficient data. > > And to avoid A2DP glitch or disconnection, we will adjust ACL > data priority higher than inquiry/page. > > In addition, we found sometimes BT inquiry/page still working > last for seconds after BT had notified inquiry/page finished. > It will lead to A2DP glitch cause of ACL data, inquiry/page > priority toggled. To fix the corner, we add a timer to remain > the inquiry/page status. > > And we found WL busy/idle threshold is too sensitive, > it will keep switching in some weak network environment and > coexistence mechanism will switch between TDMA and PSTDMA. > > The very frequently switching may destroyed not only the > handshake with AP, but BT performance. And it will trigger > some unexpected error. > > To prevent the frequently switching, we add a timer to delay > the status change while WL busy switch to idle. > > Signed-off-by: Zong-Zhe Yang > Signed-off-by: Yan-Hsuan Chuang Patch applied to wireless-drivers-next.git, thanks. 001a3c902f6f rtw88: coex: Fix ACL Tx pause during BT inquiry/page. -- https://patchwork.kernel.org/patch/11664065/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches