From patchwork Fri Nov 15 06:09:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Can Guo X-Patchwork-Id: 11245229 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EDDCE13BD for ; Fri, 15 Nov 2019 06:09:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CEB312073A for ; Fri, 15 Nov 2019 06:09:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="Y8Dqu7ii"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="bOSxaOBz" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727112AbfKOGJv (ORCPT ); Fri, 15 Nov 2019 01:09:51 -0500 Received: from smtp.codeaurora.org ([198.145.29.96]:37684 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725848AbfKOGJv (ORCPT ); Fri, 15 Nov 2019 01:09:51 -0500 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 26DCA61179; Fri, 15 Nov 2019 06:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1573798190; bh=jx/SmZAawFg/FnEm6roPssceTWagqsaNGcQB2jC2CHU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y8Dqu7ii+dTC5IZdswtH1GUeG9DeSULAQ+pLAnJgYZH9WX3PIr9bW0QTH9ojscgvh MC68gwKs6fNpKs6810qbZHz6yGly8p75uk3WnPg9MM6VGGRzlW14czG5eRJ5PRIdG5 zqatqEGUD6gzNydB6frb7n1kPMdUChws8ZIKwfh0= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.7 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_INVALID,DKIM_SIGNED,SPF_NONE autolearn=no autolearn_force=no version=3.4.0 Received: from pacamara-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: cang@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 2CA9961014; Fri, 15 Nov 2019 06:09:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1573798185; bh=jx/SmZAawFg/FnEm6roPssceTWagqsaNGcQB2jC2CHU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bOSxaOBzAvfHOZo/PekVaVsfs+ydqtlRTQory/EANWTkPoSKOAo22rjZZto2ryVpK 0OddkveI7Hnd6yFvN4Zc1q9pwzQyIdK0UikEyJZmkERudW49cCux6qijgtNr2s5YOd E16CVrpYvf+ptXgpTx4oL4qFYiX/pdi/5RRwdyFE= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2CA9961014 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=cang@codeaurora.org From: Can Guo To: asutoshd@codeaurora.org, nguyenb@codeaurora.org, rnayak@codeaurora.org, linux-scsi@vger.kernel.org, kernel-team@android.com, saravanak@google.com, salyzyn@google.com, cang@codeaurora.org Cc: Alim Akhtar , Avri Altman , Pedro Sousa , "James E.J. Bottomley" , "Martin K. Petersen" , Stanley Chu , Bean Huo , Tomas Winkler , Venkat Gopalakrishnan , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v5 1/7] scsi: ufs: Add device reset in link recovery path Date: Thu, 14 Nov 2019 22:09:24 -0800 Message-Id: <1573798172-20534-2-git-send-email-cang@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1573798172-20534-1-git-send-email-cang@codeaurora.org> References: <1573798172-20534-1-git-send-email-cang@codeaurora.org> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org In order to recover from hibern8 exit failure, perform a reset in link recovery path before issuing link start-up. Signed-off-by: Can Guo Reviewed-by: Bean Huo Reviewed-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index c28c144..525f8e6 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -3859,6 +3859,9 @@ static int ufshcd_link_recovery(struct ufs_hba *hba) ufshcd_set_eh_in_progress(hba); spin_unlock_irqrestore(hba->host->host_lock, flags); + /* Reset the attached device */ + ufshcd_vops_device_reset(hba); + ret = ufshcd_host_reset_and_restore(hba); spin_lock_irqsave(hba->host->host_lock, flags);