From patchwork Fri May 8 02:21:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11535299 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 93A1C912 for ; Fri, 8 May 2020 02:21:59 +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 71CFA2085B for ; Fri, 8 May 2020 02:21:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VBt22wZ3"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="pEp8gPDu" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 71CFA2085B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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=uDYmQ4aNLkC40ZUBdT1o4HGrIZlEwxMlJhU48z4nAnA=; b=VBt22wZ3B/kn6g iPpWkr3UL56Nph/odVE1LyZ1FIz9JogWM9Hc4r+aJ0qVM9pJXZT9xEh+6EK7yJ+NjI1MnToI2WbtG OzHMa4m0V0hxlYOGc7k4foPuz/4EdLa/ktS5reVcm71VjAuTaIPEUb0sd1eCVFELRAStGr08vj+P9 bPQni2pTR+JRwj9D46cKrHMijdhz8UHaGu3IvGrSsQH+augek4bOvnHFLZpO7mLNw2LrPvVWH6NlU oA422aYQCYl0VnlinahVS4QxJn1z3lmFQjMicbvocQLLz/rTqELORFSVjfROE0gUFRJRqQ7TclkXg 73iaQOfTwqjT78C13lYw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWseB-0003Fn-4j; Fri, 08 May 2020 02:21:55 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWse8-0003Ej-Ub; Fri, 08 May 2020 02:21:54 +0000 X-UUID: 38b182c9a2cd42adac791f567372f2ad-20200507 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=TR6ze+l1mfObKm1SdxCDQckW//z6/tKC6CTs29QI2bQ=; b=pEp8gPDuKul6gWPyLDCRhgeNlq+HDWKcuQwDOuA1JyxssOYEIzAcG4EFQCQ1Wi8iZ9SUNoPjc1e8OnKAJ75BSDsOWAC6emexRgmmpUG0O7ruTKgETaGLjBWvR0Zn3Qwhu27/8uh7s6R78AzgjgXR61oDt1n+v/GES+UzgcUQgj8=; X-UUID: 38b182c9a2cd42adac791f567372f2ad-20200507 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1359593130; Thu, 07 May 2020 18:21:48 -0800 Received: from MTKMBS02N1.mediatek.inc (172.21.101.77) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 7 May 2020 19:21:45 -0700 Received: from mtkcas08.mediatek.inc (172.21.101.126) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 May 2020 10:21:41 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas08.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 8 May 2020 10:21:41 +0800 From: Stanley Chu To: , , , , , Subject: [PATCH v7 0/8] scsi: ufs: support LU Dedicated buffer mode for WriteBooster Date: Fri, 8 May 2020 10:21:33 +0800 Message-ID: <20200508022141.10783-1-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200507_192152_993011_EEA7CFC0 X-CRM114-Status: UNSURE ( 7.79 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bvanassche@acm.org, andy.teng@mediatek.com, chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com, linux-kernel@vger.kernel.org, cang@codeaurora.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 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hi, This patchset adds LU dedicated buffer mode support for WriteBooster. In the meanwhile, enable WriteBooster capability on MediaTek UFS platforms. v6 -> v7: - Add device descriptor length check in ufshcd_wb_probe() back to prevent out-of-boundary access in ufshcd_wb_probe() - Fix the check of device descriptor length (Avri Altman) - Provide a new ufs_fixup_device_setup() function to pack both device fixup methods by general quirk table and vendor-specific way (Avri Altman) v5 -> v6: - Remove device descriptor length check in ufshcd_wb_probe() v4 -> v5: - Check LUN ID for available WriteBooster buffer only from 0 to 7 according to spec (Avri Altman) - Skip checking any possible errors from ufshcd_read_unit_desc_param(hba, lun, UNIT_DESC_PARAM_WB_BUF_ALLOC_UNITS) in ufshcd_wb_probe() and check returned d_lu_wb_buf_alloc (shall be zero if error happens) (Avri Altman) v3 -> v4: - Introduce "fixup_dev_quirks" vops to allow vendors to fix and modify device quirks, and provide an initial vendor-specific device quirk table on MediaTek UFS platforms - Avoid relying on common device quirk table for pre-3.1 UFS device with non-standard WriteBooster support (Can Guo) - Fix comments for ufshcd_wb_probe() (Can Guo) - Make ufshcd_wb_get_flag_index() inline and fix ufshcd_is_wb_flags() (Avri Altman) v2 -> v3: - Introduce a device quirk to support WriteBooster in pre-3.1 UFS devices (Avri Altman) - Fix WriteBooster related sysfs nodes. Now all WriteBooster related sysfs nodes are specifically mapped to the LUN with WriteBooster enabled in LU Dedicated buffer mode (Avri Altman) v1 -> v2: - Change the definition name of WriteBooster buffer mode to correspond to specification (Bean Huo) - Add patch #5: "scsi: ufs: cleanup WriteBooster feature" Stanley Chu (8): scsi: ufs: enable WriteBooster on some pre-3.1 UFS devices scsi: ufs: introduce fixup_dev_quirks vops scsi: ufs: export ufs_fixup_device_setup() function scsi: ufs-mediatek: add fixup_dev_quirks vops scsi: ufs: add "index" in parameter list of ufshcd_query_flag() scsi: ufs: add LU Dedicated buffer mode support for WriteBooster scsi: ufs-mediatek: enable WriteBooster capability scsi: ufs: cleanup WriteBooster feature drivers/scsi/ufs/ufs-mediatek.c | 25 ++++- drivers/scsi/ufs/ufs-sysfs.c | 11 ++- drivers/scsi/ufs/ufs.h | 10 ++ drivers/scsi/ufs/ufs_quirks.h | 7 ++ drivers/scsi/ufs/ufshcd.c | 163 +++++++++++++++++++++----------- drivers/scsi/ufs/ufshcd.h | 19 +++- 6 files changed, 173 insertions(+), 62 deletions(-)