From patchwork Tue Jul 13 20:16:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sean Wang X-Patchwork-Id: 12374961 X-Patchwork-Delegate: nbd@nbd.name 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=ham 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 BBE30C07E95 for ; Tue, 13 Jul 2021 20:16:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DCE46135A for ; Tue, 13 Jul 2021 20:16:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234957AbhGMUTA (ORCPT ); Tue, 13 Jul 2021 16:19:00 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:38934 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S234947AbhGMUS7 (ORCPT ); Tue, 13 Jul 2021 16:18:59 -0400 X-UUID: 12ff7fae6d4c48dd96e06ef4661b6e30-20210714 X-UUID: 12ff7fae6d4c48dd96e06ef4661b6e30-20210714 Received: from mtkmbs10n1.mediatek.inc [(172.21.101.34)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1474067305; Wed, 14 Jul 2021 04:16:07 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs06n1.mediatek.inc (172.21.101.129) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 14 Jul 2021 04:16:06 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 14 Jul 2021 04:16:06 +0800 From: To: , CC: , , , , , , , , , , , , , , , Subject: [PATCH v3 3/4] mt76: mt7921: fix mgmt frame using unexpected bitrate Date: Wed, 14 Jul 2021 04:16:00 +0800 Message-ID: <3d68ff612bacf2c8d2b7b414f2b3cf14daf443f8.1626207204.git.objelf@gmail.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <92a8ecfdf198b34f98d5c1489a83adf151657760.1626207204.git.objelf@gmail.com> References: <92a8ecfdf198b34f98d5c1489a83adf151657760.1626207204.git.objelf@gmail.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Sean Wang Fix the current driver mgmt frame is not respecting the basic rates field provided by the AP and then unconditionally is using the lowest (1 or 6 Mbps) rate. For example, if the AP only supported basic rate {24, 36, 48, 54} Mbps, mt7921 cannot send mgmt frame with the rate not in the group. So, instead, we pick up the lowest basic rate the AP can support to send. Fixes: 163f4d22c118 ("mt76: mt7921: add MAC support") Signed-off-by: Sean Wang --- v2: 1. introduce another patch ("mt76: fix mt76_rates for the multiple devices") for those devices which have the same issue. 2. drop the own mt7921_rates, the unused macro and variable. v3: 1. introduce and rely on another patch ("mt76: add mt76_default_basic_rate more devices can rely on"). 2. add Fixes tag. --- drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 5 +---- drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h | 2 -- 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 7fe2e3a50428..a4ce362286eb 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -815,10 +815,7 @@ void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi, /* hardware won't add HTC for mgmt/ctrl frame */ txwi[2] |= cpu_to_le32(MT_TXD2_HTC_VLD); - if (mphy->chandef.chan->band == NL80211_BAND_5GHZ) - rate = MT7921_5G_RATE_DEFAULT; - else - rate = MT7921_2G_RATE_DEFAULT; + rate = mt76_default_basic_rate(mphy, vif); val = MT_TXD6_FIXED_BW | FIELD_PREP(MT_TXD6_TX_RATE, rate); diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h index 2d8bd6bfc820..be16d528a923 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h @@ -38,8 +38,6 @@ #define MT7921_CFEND_RATE_DEFAULT 0x49 /* OFDM 24M */ #define MT7921_CFEND_RATE_11B 0x03 /* 11B LP, 11M */ -#define MT7921_5G_RATE_DEFAULT 0x4b /* OFDM 6M */ -#define MT7921_2G_RATE_DEFAULT 0x0 /* CCK 1M */ #define MT7921_SKU_RATE_NUM 161 #define MT7921_SKU_MAX_DELTA_IDX MT7921_SKU_RATE_NUM