From patchwork Tue Dec 12 09:08:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mario Limonciello X-Patchwork-Id: 753914 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="1Nr+IYxy" Received: from NAM11-CO1-obe.outbound.protection.outlook.com (mail-co1nam11on2052.outbound.protection.outlook.com [40.107.220.52]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BB4C118C; Tue, 12 Dec 2023 11:12:54 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UHlzv5CRBlkPupsH/14SrWQ/fa5izQhvrwpStP4w0O1rNpe0SurUr3aWyiQaLM5rtvfxW85zbOnD2kF6om2u1xM9NVpOZ/+ho0QZ2COfZYm+JRZ2Slk9SqxaBO3WuA/AuBiKD/mo/OwIHIUf1tmaSQu4+qgZw4i1nNstwm5PBmBbA88yA8phC5HNQW6nHwhaA8s3V7lF07aNI4koHXHzS61yp2jGYZaQYTwJQtXbk7bl4NUt+BYEbnWJYMAl3WYj3LK3cw7UYZpsD6Z/X5Ksz5c0p60Fsui9VOcqw5Wydw8LKyrdXMzUlSH1yAC2fGmJDUWdPrIet8BgNIFL/ZwGqw== ARC-Message-Signature: i=1; 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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CY4PEPF0000FCBE.mail.protection.outlook.com (10.167.242.100) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7091.26 via Frontend Transport; Tue, 12 Dec 2023 19:12:47 +0000 Received: from AUS-P9-MLIMONCI.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.34; Tue, 12 Dec 2023 13:12:41 -0600 From: Mario Limonciello To: Felix Fietkau , Lorenzo Bianconi , "Ryder Lee" CC: Shayne Chen , Sean Wang , Kalle Valo , Matthias Brugger , AngeloGioacchino Del Regno , Deren Wu , Ming Yen Hsieh , Ben Greear , "open list:MEDIATEK MT76 WIRELESS LAN DRIVER" , "open list:ARM/Mediatek SoC support" , "moderated list:ARM/Mediatek SoC support" , Mario Limonciello , Sultan Alsawaf Subject: [PATCH 1/2] wifi: mt76: mt7921: Disable powersaving by default Date: Tue, 12 Dec 2023 03:08:51 -0600 Message-ID: <20231212090852.162787-1-mario.limonciello@amd.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000FCBE:EE_|SJ2PR12MB9114:EE_ X-MS-Office365-Filtering-Correlation-Id: 1c414a05-002d-46a9-074b-08dbfb465403 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Dec 2023 19:12:47.7886 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1c414a05-002d-46a9-074b-08dbfb465403 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000FCBE.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB9114 X-Spam-Level: **** Several users have reported awful latency when powersaving is enabled with certain access point combinations. It's also reported that the powersaving feature doesn't provide an ample enough savings to justify being enabled by default with these issues. Introduce a module parameter that would control the power saving behavior. Set it to default as disabled. This mirrors what some other WLAN drivers like iwlwifi do. Suggested-by: Sultan Alsawaf Link: https://codeberg.org/Hybrid-Project-Developers/linux-tkg/blame/branch/master/mt76:-mt7921:-Disable-powersave-features-by-default.mypatch Link: https://aur.archlinux.org/cgit/aur.git/tree/0027-mt76_-mt7921_-Disable-powersave-features-by-default.patch?h=linux-g14 Link: https://community.frame.work/t/responded-strange-wlan-problems-with-kernel-branch-6-2/41868/4 Signed-off-by: Mario Limonciello --- drivers/net/wireless/mediatek/mt76/mt7921/init.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/init.c b/drivers/net/wireless/mediatek/mt76/mt7921/init.c index 7d6a9d746011..78d4197988c8 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/init.c @@ -10,6 +10,11 @@ #include "../mt76_connac2_mac.h" #include "mcu.h" +static bool mt7921_powersave; +module_param_named(power_save, mt7921_powersave, bool, 0444); +MODULE_PARM_DESC(power_save, + "enable WiFi power management (default: disable)"); + static ssize_t mt7921_thermal_temp_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -271,11 +276,13 @@ int mt7921_register_device(struct mt792x_dev *dev) dev->pm.idle_timeout = MT792x_PM_TIMEOUT; dev->pm.stats.last_wake_event = jiffies; dev->pm.stats.last_doze_event = jiffies; - if (!mt76_is_usb(&dev->mt76)) { + if (mt7921_powersave && !mt76_is_usb(&dev->mt76)) { dev->pm.enable_user = true; dev->pm.enable = true; dev->pm.ds_enable_user = true; dev->pm.ds_enable = true; + } else { + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; } if (!mt76_is_mmio(&dev->mt76)) From patchwork Tue Dec 12 09:08:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mario Limonciello X-Patchwork-Id: 753472 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="ku5sD/dE" Received: from NAM11-CO1-obe.outbound.protection.outlook.com (mail-co1nam11on2080.outbound.protection.outlook.com [40.107.220.80]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98674EA; 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DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Dec 2023 19:12:49.0792 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2d878ad2-65bb-4afe-550e-08dbfb4654ca X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d; Ip=[165.204.84.17]; Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CY4PEPF0000FCBF.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB4957 Introduce a module parameter that would control the power saving behavior. Set it to default as disabled. This mirrors what some other WLAN drivers like iwlwifi do. Signed-off-by: Mario Limonciello --- drivers/net/wireless/mediatek/mt76/mt7925/init.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/init.c b/drivers/net/wireless/mediatek/mt76/mt7925/init.c index 8f9b7a2f376c..370fe26d592b 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/init.c @@ -7,6 +7,11 @@ #include "mac.h" #include "mcu.h" +static bool mt7925_powersave; +module_param_named(power_save, mt7925_powersave, bool, 0444); +MODULE_PARM_DESC(power_save, + "enable WiFi power management (default: disable)"); + static void mt7925_regd_notifier(struct wiphy *wiphy, struct regulatory_request *req) @@ -184,11 +189,13 @@ int mt7925_register_device(struct mt792x_dev *dev) dev->pm.idle_timeout = MT792x_PM_TIMEOUT; dev->pm.stats.last_wake_event = jiffies; dev->pm.stats.last_doze_event = jiffies; - if (!mt76_is_usb(&dev->mt76)) { + if (mt7925_powersave && !mt76_is_usb(&dev->mt76)) { dev->pm.enable_user = true; dev->pm.enable = true; dev->pm.ds_enable_user = true; dev->pm.ds_enable = true; + } else { + hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; } if (!mt76_is_mmio(&dev->mt76))