From mboxrd@z Thu Jan 1 00:00:00 1970 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=-3.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,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 57D95C04E53 for ; Wed, 15 May 2019 09:36:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2AD4820881 for ; Wed, 15 May 2019 09:36:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="cmUMS9IZ" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AD4820881 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=0cEeYr1wET1teOgKHYjEulloWOImRfAbqUGJjpzEIP0=; b=cmUMS9IZSC7I6a 1OLj1tuOz6M8PGXCLw3xqrBtoaDp5vCOuw+YMjoy8DLameuZ3Py4aDyKIaewHLD9X9ob1eOAf8cAq wbT4kLu0+UvJWiKp+7Jc7HhK1pHIf054zEkpfBkd4YryaXl2kCK3oA7au0IRTlwzxOPdAk26R0fF/ IHwgPF3e4pUXzFMNTe1OIr5Bk08zzOeLBtYit/ILRaUtU3hjAmleTDyUybBmnr8qiQMBLpg8yWVGZ 88hEa5I13DUx79jqfy3rbqend05Ay3PTfCGLudIgR2YAd+WzROd+Kl2Ska6hVZlvrZGLc5bab3rg0 S0wpxVBGJh47wv6X1g+A==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hQqLB-0005WG-GA; Wed, 15 May 2019 09:36:49 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hQqL8-0005Uu-8U; Wed, 15 May 2019 09:36:47 +0000 X-UUID: c3531e7867784dcb8caca4fe612b4db2-20190515 X-UUID: c3531e7867784dcb8caca4fe612b4db2-20190515 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1225086256; Wed, 15 May 2019 01:36:37 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 15 May 2019 02:36:36 -0700 Received: from mtkcas09.mediatek.inc (172.21.101.178) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Wed, 15 May 2019 17:36:33 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Wed, 15 May 2019 17:36:33 +0800 From: Stanley Chu To: , , , , Subject: [PATCH v2 0/3] scsi: ufs: Add error handling of Auto-Hibernate Date: Wed, 15 May 2019 17:36:25 +0800 Message-ID: <1557912988-26758-1-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-TM-SNTS-SMTP: 6FFEA0CCF754E31D9D5A4690B8170BC47254F360FB07BE0B3B5CFDB1B23F76FA2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190515_023646_305548_6EE1D40A X-CRM114-Status: UNSURE ( 6.16 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marc.w.gonzalez@free.fr, andy.teng@mediatek.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, evgreen@chromium.org, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, matthias.bgg@gmail.com, Stanley Chu , linux-arm-kernel@lists.infradead.org, beanhuo@micron.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Currently auto-hibernate is activated if host supports auto-hibern8 capability. However error-handling is not implemented, which makes the feature somewhat risky. If either "Hibernate Enter" or "Hibernate Exit" fail during auto-hibernate flow, the corresponding interrupt "UIC_HIBERNATE_ENTER" or "UIC_HIBERNATE_EXIT" shall be raised according to UFS specification. This patch adds auto-hibernate error-handling: - Monitor "Hibernate Enter" and "Hibernate Exit" interrupts after auto-hibernate feature is activated. - If fail happens, trigger error-handling just like "manual-hibernate" fail and apply the same recovery flow: schedule UFS error handler in ufshcd_check_errors(), and then do host reset and restore in UFS error handler. v2: - Fix sentences in commit message (Marc Gonzalez) - Make "Auto-Hibernate" error detection more precise (Bean Huo) Stanley Chu (3): scsi: ufs: Do not overwrite Auto-Hibernate timer scsi: ufs: Add error-handling of Auto-Hibernate scsi: ufs: Use re-factored Auto-Hibernate function drivers/scsi/ufs/ufshcd.c | 33 ++++++++++++++++++++++++++++++++- drivers/scsi/ufs/ufshcd.h | 5 +++++ drivers/scsi/ufs/ufshci.h | 3 +++ 3 files changed, 40 insertions(+), 1 deletion(-) -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel