From patchwork Fri May 6 12:02:13 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 570443 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48F32C4332F for ; Fri, 6 May 2022 12:02:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1391624AbiEFMGi (ORCPT ); Fri, 6 May 2022 08:06:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1391609AbiEFMGg (ORCPT ); Fri, 6 May 2022 08:06:36 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0EEBC6473D for ; Fri, 6 May 2022 05:02:52 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.73 with qID 246C2fDE2029471, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36504.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.71/5.88) with ESMTPS id 246C2fDE2029471 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 6 May 2022 20:02:41 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36504.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.27; Fri, 6 May 2022 20:02:41 +0800 Received: from localhost (172.16.17.21) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 6 May 2022 20:02:40 +0800 From: Ping-Ke Shih To: CC: , Subject: [PATCH 2/5] rtw89: correct setting of RX MPDU length Date: Fri, 6 May 2022 20:02:13 +0800 Message-ID: <20220506120216.58567-3-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220506120216.58567-1-pkshih@realtek.com> References: <20220506120216.58567-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.16.17.21] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: trusted connection X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Deterministic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 05/06/2022 11:45:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: =?big5_tw?b?Q2xlYW4sIGJhc2VzOiAyMDIyLzUvNiCkV6TIIDEwOjM5?= =?big5_tw?b?OjAw?= X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled X-KSE-ServerInfo: RTEXH36504.realtek.com.tw, 9 X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: protection disabled Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Set proper setting according to RX quota, and then it doesn't break buffer due to size of received packet exceeding buffer size. Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/mac.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c index a06ca65b339ff..e1a1699a1a9cf 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -2005,6 +2005,7 @@ static int rmac_init(struct rtw89_dev *rtwdev, u8 mac_idx) #define TRXCFG_RMAC_DATA_TO 15 #define RX_MAX_LEN_UNIT 512 #define PLD_RLS_MAX_PG 127 +#define RX_SPEC_MAX_LEN (11454 + RX_MAX_LEN_UNIT) int ret; u32 reg, rx_max_len, rx_qta; u16 val; @@ -2035,11 +2036,10 @@ static int rmac_init(struct rtw89_dev *rtwdev, u8 mac_idx) rx_qta = rtwdev->mac.dle_info.c0_rx_qta; else rx_qta = rtwdev->mac.dle_info.c1_rx_qta; - rx_qta = rx_qta > PLD_RLS_MAX_PG ? PLD_RLS_MAX_PG : rx_qta; - rx_max_len = (rx_qta - 1) * rtwdev->mac.dle_info.ple_pg_size / - RX_MAX_LEN_UNIT; - rx_max_len = rx_max_len > B_AX_RX_MPDU_MAX_LEN_SIZE ? - B_AX_RX_MPDU_MAX_LEN_SIZE : rx_max_len; + rx_qta = min_t(u32, rx_qta, PLD_RLS_MAX_PG); + rx_max_len = rx_qta * rtwdev->mac.dle_info.ple_pg_size; + rx_max_len = min_t(u32, rx_max_len, RX_SPEC_MAX_LEN); + rx_max_len /= RX_MAX_LEN_UNIT; rtw89_write32_mask(rtwdev, reg, B_AX_RX_MPDU_MAX_LEN_MASK, rx_max_len); if (rtwdev->chip->chip_id == RTL8852A &&