From nobody Fri Feb 13 04:42:17 2026 Received: from smtpbgau1.qq.com (smtpbgau1.qq.com [54.206.16.166]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E7A002D61B for ; Sat, 1 Jun 2024 09:43:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.206.16.166 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717235021; cv=none; b=ibY9GJGHWRWl0B/oONY7Q8q3SvZDOXOvb6O6BZqqx9vDw6ymAxfhA0pRgud9tgjVd8pQcOYgZ4Gl/fHZFgITH/6HRBe8XZ+xStCa4wxmiOmPB8yva8/TxnrdETxH3M3Md52b9eP2vV6s/zqdUZ55O4b2J/PzOpknRhu2FOS6eIw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717235021; c=relaxed/simple; bh=oHc2itPSkdCfhEk+SzhIrjXTk203PODTg41jbcsbXfU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=F3QH5jD5MQ9AyTq8MRXULRhFUjDoXeWJBvMGRw2YRh9uSR+4e3VreFfwHVstgy8vb+cf+2pTQ9OT10FSSdrglaH0eMu93YySjyvqMJ8AejOHrhyMqCr0MgsNR0F0NdklZe5+czSOzxSlc5ly5USu9M/D6YYqRXV/9Xgov1Tngk8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=uniontech.com; spf=pass smtp.mailfrom=uniontech.com; arc=none smtp.client-ip=54.206.16.166 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=uniontech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=uniontech.com X-QQ-mid: bizesmtpip2t1717234916tdymemk X-QQ-Originating-IP: gIy0LiGnTn3AK5EL3/Cf5tzlesxG0DekhLgc7FFD8Ec= Received: from 192.168.5.25 ( [255.207.235.15]) by bizesmtp.qq.com (ESMTP) with id ; Sat, 01 Jun 2024 17:41:54 +0800 (CST) X-QQ-SSF: 01400000000000E0B000000A0000000 X-QQ-FEAT: bQsUcYFpAAYZgSaD1UReWU5dBtwmic1unPItvAt6mXUVEjD4YR4qZAM1DyCf6 DMURWVXHAsEDKCj8ppWQlKDcrKWnrAkOU8fEqloyUnfO+nWAqbx584kbglKz+H8mfzeMSRx aqCbqe9OqvNxXh5EU3cAL/zFZGHppKbP153Toorc4EGs7ix059btDWeIN1364Xi+oIyuWBC ZU+ptyVxS6n9hruSFCfIPRY7AlYl1hKqvDbB70TcyKrzipGOx18JZGsiJJUzMHXZfp5xQS/ TyipkdLmwtYvYbSX+ZEg0LvhE3ivOEJLLwDk/FpL344bXGeP5aIcoU+KkIkNgI88Y11nKxF kdyBhhUAXpoMirRFzq27sXTu2Si1ulnn3Oj3C16haxJdyhjWC9Zta0n7bI9vFC4/PbTjgoN 5x3+Wgz3cbc= X-QQ-GoodBg: 1 X-BIZMAIL-ID: 11862926628622183392 From: WangYuli To: wangyuli@uniontech.com, guanwentao@uniontech.com, huanglin@uniontech.com, kbusch@kernel.org, axboe@fb.com, hch@lst.de, sagi@grimberg.me Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] nvme/pci: Add APST quirk for Lenovo N60z laptop Date: Sat, 1 Jun 2024 17:41:43 +0800 Message-ID: <5CB69FDA62BB24AB+20240601094143.295718-1-wangyuli@uniontech.com> X-Mailer: git-send-email 2.45.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtpip:uniontech.com:qybglogicsvrgz:qybglogicsvrgz8a-1 Content-Type: text/plain; charset="utf-8" There is a hardware power-saving problem with the Lenovo N60z board. When turn it on and leave it for 30 minutes, there is a 20% chance that a nvme disk will not wake up until reboot. Signed-off-by: hmy Signed-off-by: Wentao Guan Signed-off-by: WangYuli --- drivers/nvme/host/pci.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 282d808400c5..1e0991667453 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2903,6 +2903,13 @@ static unsigned long check_vendor_combination_bug(st= ruct pci_dev *pdev) return NVME_QUIRK_SIMPLE_SUSPEND; } =20 + /* + * NVMe SSD drops off the PCIe bus after system idle + * for 30 minuites on a Lenovo N60z board. + */ + if (dmi_match(DMI_BOARD_NAME, "LXKT-ZXEG-N6")) + return NVME_QUIRK_NO_APST; + return 0; } =20 --=20 2.45.1