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_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 08ACAC04AAF for ; Mon, 20 May 2019 08:33:37 +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 CEDC820815 for ; Mon, 20 May 2019 08:33:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="U7+AsVCw" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CEDC820815 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=pldonLEgCW0guOL1AEHdnXbtRR5HMRDmZ8ZVprGrbvw=; b=U7+AsVCw5k5/cR Jwygtw7QsCui7UyZJo9vt/txjGuWAj+gSMONNHv+7a5plvS7BpRPTK+V5BsFzI+KCGfgl3N5miGRX F7GfhYgq/712u6mGfsBOQ2GLRjFKIEcYHU3lmSfWiAVl5H2btOD79O1zokF2aS41vyhnqG/9Xn0ch eU2d5F+i7ILsowZJJJHKs0XUsN0zyGGfhSYARw0Aw/AfkYr0fonQeu9GOmv6HxP2B4fFD3Y+tLtsu WVJfMkXN9jRZmM0xLgFrZefeiaV404UMNMetRAiE3uwQt00fEigsfuAEraht4/Kvu0r+aXARO8Nit 28pkhk9vbs0a8RdBmdAw==; 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 1hSdjc-00034w-O9; Mon, 20 May 2019 08:33:28 +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 1hSdjS-0002uC-G2; Mon, 20 May 2019 08:33:21 +0000 X-UUID: 937adf39f88a48c0be639006f67f16da-20190520 X-UUID: 937adf39f88a48c0be639006f67f16da-20190520 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 352096238; Mon, 20 May 2019 00:33:03 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 20 May 2019 01:33:02 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 20 May 2019 16:32:54 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 20 May 2019 16:32:55 +0800 From: Stanley Chu To: , , , , Subject: [PATCH v3 0/3] scsi: ufs: Add error handling of Auto-Hibernate Date: Mon, 20 May 2019 16:32:15 +0800 Message-ID: <1558341138-18043-1-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190520_013319_759241_EA729F09 X-CRM114-Status: UNSURE ( 5.84 ) 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. v3: - Fix typo in patch "scsi: ufs: Do not overwrite Auto-Hibernate timer" (Avri Altman) - Rebase to Linux 5.2-rc1 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