From patchwork Tue Nov 22 22:26:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 628190 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFD59C4332F for ; Tue, 22 Nov 2022 22:26:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234893AbiKVW01 (ORCPT ); Tue, 22 Nov 2022 17:26:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234549AbiKVW0Z (ORCPT ); Tue, 22 Nov 2022 17:26:25 -0500 Received: from mail-pf1-f172.google.com (mail-pf1-f172.google.com [209.85.210.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 11F8579E2B for ; Tue, 22 Nov 2022 14:26:25 -0800 (PST) Received: by mail-pf1-f172.google.com with SMTP id z26so15682729pff.1 for ; Tue, 22 Nov 2022 14:26:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=YV+ncF2FD7uDlkKIUjkVd4ircf+uuGyUCcUB1Dxg0Dg=; b=ea0HqLK7Q+QnKNMQzq9dthDkWnXvLHhvcMd1wiHGjgbatwUBRCR0U7PglxgC+JZLcb //WuH3630qC6eP81fcpfHzRo27DBqQgWbpqlV/eJoO4Je3RMf9//1crk6vn3yPGmVAef B2/0NvIUNUSCsJix+ZFAUSUGxxSwxBGiOvLy4adjSUYrvA0KTX8DBmikAy6WmMCjDjc+ rQXmUlGUBWRzjaQGXLs2C8ZtK3qzg9LcC+oKTekW/NXBWzaHo5cMRHRNyqRb1cGhxy0b SN4d+uOCiorTsAis2VmjGncSQikGWZF3303wiyFPi0cALinHbTD+53p45lUmjtouHDRD YkPg== X-Gm-Message-State: ANoB5pkGC/3hKXK8CYuF3pMm3vg2Vh8qcBHVIZzZYeWcfa4JTpaNjyJS SaYF5W04RLo7KhwayS5RMpw= X-Google-Smtp-Source: AA0mqf6ReZrGp6ADR1ucgjMKRBPPkjmZODDIR9RVNIp5dgEecXcePH/7A7RMj+3dfCWUbTSMGXjoyw== X-Received: by 2002:a63:470e:0:b0:440:69bc:c972 with SMTP id u14-20020a63470e000000b0044069bcc972mr5138764pga.86.1669155984467; Tue, 22 Nov 2022 14:26:24 -0800 (PST) Received: from bvanassche-linux.mtv.corp.google.com ([2620:15c:211:201:3c88:9479:e09c:9acb]) by smtp.gmail.com with ESMTPSA id cp5-20020a170902e78500b00172973d3cd9sm12539551plb.55.2022.11.22.14.26.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Nov 2022 14:26:23 -0800 (PST) From: Bart Van Assche To: "Martin K . Petersen" Cc: Jaegeuk Kim , linux-scsi@vger.kernel.org, Adrian Hunter , Bart Van Assche Subject: [PATCH v4 0/5] Prepare for upstreaming Pixel 6 and 7 UFS support Date: Tue, 22 Nov 2022 14:26:12 -0800 Message-Id: <20221122222617.3449081-1-bvanassche@acm.org> X-Mailer: git-send-email 2.38.1.584.g0f3c55d4c2-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Hi Martin, The Exynos UFS controller requires that SCSI command processing is suspended while reprogramming encryption keys. This UFS controller is used in e.g. Google Pixel 6 and 7 phones and also in Tesla cars. The patches in this series are a first step towards integrating support in the upstream kernel for the UFS controller in the Pixel 6 and 7. Please consider these patches for the next merge window. Note: instructions for downloading the Pixel kernel source code are available at https://source.android.com/setup/build/building-kernels. Thanks, Bart. Changes compared to v3: - Changed SCSI_UFS_VARIABLE_SG_ENTRY_SIZE from user-selectable into selected only if needed. Changes compared to v2: - Addressed more review comments from Avri. Changes compared to v1: - Addressed Avri's review comments. - Added patch "Allow UFS host drivers to override the sg entry size". Bart Van Assche (4): scsi: ufs: Reduce the clock scaling latency scsi: ufs: Move a clock scaling check scsi: ufs: Pass the clock scaling timeout as an argument scsi: ufs: Add suspend/resume SCSI command processing support Eric Biggers (1): scsi: ufs: Allow UFS host drivers to override the sg entry size drivers/ufs/core/ufshcd.c | 89 +++++++++++++++++++++++++++------------ drivers/ufs/host/Kconfig | 4 ++ include/ufs/ufshcd.h | 33 +++++++++++++++ include/ufs/ufshci.h | 9 +++- 4 files changed, 106 insertions(+), 29 deletions(-)