From patchwork Mon May 13 14:36:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 10941031 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B6A981390 for ; Mon, 13 May 2019 14:37:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A5BB927FAE for ; Mon, 13 May 2019 14:37:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 99D5328173; Mon, 13 May 2019 14:37:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 54BB327FAE for ; Mon, 13 May 2019 14:37:21 +0000 (UTC) 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=cgi5d2UXXLkN2i0XOzikwPXd7Z6p02SNO93PV2Ndgjw=; b=t7WcZ0ism6OykO JPttRNUwasYPVYDOwluwrMGKI2gpcN6M0+WhsV5QBTOfp0mwuXeo+ga7Sl64CK4zO1OM9s76lW3Z6 RiKih38ntL0t1TKYB3fIES2seqind4qCoBerV/n0f0ykIupsnV3ilmk0WXWoayzGdbPqDx6hW0sBv zVGkQfnIwF2gQiPtcVREUe4+FCsQtzPQ2ABQ6oafRdqWYPCzCBCC+FwAeTQv47kb2eEbao5ozkhO7 ox9enmPJi8uaQAZjnXa41P7oH/gRQL/OVUStP6PX6QvhVPjSgt/LLclbC/CL1nTL04GdMjDYCyQbM g66cV2/DSdHBF1ebpLEQ==; 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 1hQC4t-0004Xa-SD; Mon, 13 May 2019 14:37:19 +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 1hQC4K-0003n4-9K; Mon, 13 May 2019 14:36:47 +0000 X-UUID: c2e2e28ad84340de8846f6f261eb8a5b-20190513 X-UUID: c2e2e28ad84340de8846f6f261eb8a5b-20190513 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1869661129; Mon, 13 May 2019 06:36:35 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 13 May 2019 07:36:34 -0700 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 13 May 2019 22:36:31 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 13 May 2019 22:36:31 +0800 From: Stanley Chu To: , , , , Subject: [PATCH v1 0/3] scsi: ufs: add error handlings of auto-hibern8 Date: Mon, 13 May 2019 22:36:23 +0800 Message-ID: <1557758186-18706-1-git-send-email-stanley.chu@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 X-TM-SNTS-SMTP: 39CA6C07C08CE177DC88ECBB8CB28A6623BAFF398AD66A25D1994835AF4110302000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190513_073644_570907_FA9F1896 X-CRM114-Status: UNSURE ( 4.94 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@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, subhashj@codeaurora.org, linux-mediatek@lists.infradead.org, peter.wang@mediatek.com, vivek.gautam@codeaurora.org, matthias.bgg@gmail.com, sayalil@codeaurora.org, Stanley Chu , linux-arm-kernel@lists.infradead.org, beanhuo@micron.com Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+patchwork-linux-mediatek=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Currently auto-hibern8 is activated if host supports auto-hibern8 capability. However no error handlings are existed thus this feature is kind of risky. If "Hibernate Enter" or "Hibernate Exit" fail happens during auto-hibern8 flow, the corresponding interrupt "UIC_HIBERNATE_ENTER" or "UIC_HIBERNATE_EXIT" shall be raised according to UFS specification. This patch adds auto-hibern8 error handlings: - Monitor "Hibernate Enter" and "Hibernate Exit" interrupts after auto-hibern8 feature is activated. - If fail happens, trigger error handlings just like "manual-hibernate" fail and use the same flow: Identify errors and schedule UFS error handler in ufshcd_check_errors(), and then do host reset and restore in UFS error handler. Stanley Chu (3): scsi: ufs: do not overwrite auto-hibern8 timer scsi: ufs: add error handling of auto-hibern8 scsi: ufs: use re-factored auto_hibern8 function drivers/scsi/ufs/ufshcd.c | 16 +++++++++++++++- drivers/scsi/ufs/ufshcd.h | 13 +++++++++++++ drivers/scsi/ufs/ufshci.h | 3 +++ 3 files changed, 31 insertions(+), 1 deletion(-)