From patchwork Fri Oct 23 09:37:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 11852629 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 20DFB92C for ; Fri, 23 Oct 2020 09:38:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 08ECC2192A for ; Fri, 23 Oct 2020 09:38:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S461608AbgJWJii (ORCPT ); Fri, 23 Oct 2020 05:38:38 -0400 Received: from rtits2.realtek.com ([211.75.126.72]:45986 "EHLO rtits2.realtek.com.tw" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S461600AbgJWJig (ORCPT ); Fri, 23 Oct 2020 05:38:36 -0400 Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.69 with qID 09N9cVhoD024667, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexmb04.realtek.com.tw[172.21.6.97]) by rtits2.realtek.com.tw (8.15.2/2.66/5.86) with ESMTPS id 09N9cVhoD024667 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 23 Oct 2020 17:38:31 +0800 Received: from localhost.localdomain (172.21.69.213) by RTEXMB04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2044.4; Fri, 23 Oct 2020 17:38:31 +0800 From: To: , CC: Subject: [PATCH 11/11] rtw88: coex: simplify the setting and condition about WLAN TX limitation Date: Fri, 23 Oct 2020 17:37:42 +0800 Message-ID: <20201023093742.29908-12-pkshih@realtek.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20201023093742.29908-1-pkshih@realtek.com> References: <20201023093742.29908-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.69.213] X-ClientProxiedBy: RTEXMB06.realtek.com.tw (172.21.6.99) To RTEXMB04.realtek.com.tw (172.21.6.97) Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Ching-Te Ku Life time related setting is related to WLAN active port number, not its mode. The original setting may cause poor WLAN performance. In most case, WLAN TX limitation is helpful for BT in coexistence scenario, especially for A2DP quality. So this is necessary to fix the setting and constraint it. Signed-off-by: Ching-Te Ku Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw88/coex.c | 24 +++++++---------------- 1 file changed, 7 insertions(+), 17 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/coex.c b/drivers/net/wireless/realtek/rtw88/coex.c index b388979234a7..6c1158c92582 100644 --- a/drivers/net/wireless/realtek/rtw88/coex.c +++ b/drivers/net/wireless/realtek/rtw88/coex.c @@ -38,7 +38,7 @@ static void rtw_coex_limited_tx(struct rtw_dev *rtwdev, struct rtw_chip_info *chip = rtwdev->chip; struct rtw_coex *coex = &rtwdev->coex; struct rtw_coex_stat *coex_stat = &coex->stat; - bool wifi_under_b_mode = false; + u8 num_of_active_port = 1; if (!chip->scbd_support) return; @@ -70,17 +70,13 @@ static void rtw_coex_limited_tx(struct rtw_dev *rtwdev, /* set queue life time to avoid can't reach tx retry limit * if tx is always broken by GNT_BT */ - rtw_write8_set(rtwdev, REG_LIFETIME_EN, 0xf); + if (num_of_active_port <= 1) + rtw_write8_set(rtwdev, REG_LIFETIME_EN, 0xf); rtw_write16(rtwdev, REG_RETRY_LIMIT, 0x0808); /* auto rate fallback step within 8 retries */ - if (wifi_under_b_mode) { - rtw_write32(rtwdev, REG_DARFRC, 0x1000000); - rtw_write32(rtwdev, REG_DARFRCH, 0x1010101); - } else { - rtw_write32(rtwdev, REG_DARFRC, 0x1000000); - rtw_write32(rtwdev, REG_DARFRCH, 0x4030201); - } + rtw_write32(rtwdev, REG_DARFRC, 0x1000000); + rtw_write32(rtwdev, REG_DARFRCH, 0x4030201); } else { rtw_write8_clr(rtwdev, REG_TX_HANG_CTRL, BIT_EN_GNT_BT_AWAKE); rtw_write8_clr(rtwdev, REG_LIFETIME_EN, 0xf); @@ -101,18 +97,12 @@ static void rtw_coex_limited_wl(struct rtw_dev *rtwdev) { struct rtw_coex *coex = &rtwdev->coex; struct rtw_coex_dm *coex_dm = &coex->dm; - struct rtw_coex_stat *coex_stat = &coex->stat; bool tx_limit = false; bool tx_agg_ctrl = false; - if (coex->under_5g || - coex_dm->bt_status == COEX_BTSTATUS_NCON_IDLE) { - /* no need to limit tx */ - } else { + if (!coex->under_5g && coex_dm->bt_status != COEX_BTSTATUS_NCON_IDLE) { tx_limit = true; - if (coex_stat->bt_hid_exist || coex_stat->bt_hfp_exist || - coex_stat->bt_hid_pair_num > 0) - tx_agg_ctrl = true; + tx_agg_ctrl = true; } rtw_coex_limited_tx(rtwdev, tx_limit, tx_agg_ctrl);