From patchwork Wed Jun 5 23:28:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Tangirala X-Patchwork-Id: 10978079 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 426203E8C for ; Wed, 5 Jun 2019 23:29:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 36A6A1FFB7 for ; Wed, 5 Jun 2019 23:29:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3510D2675C; Wed, 5 Jun 2019 23:29:01 +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=-15.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, USER_IN_DEF_DKIM_WL autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9C3C288B3 for ; Wed, 5 Jun 2019 23:29:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726704AbfFEX27 (ORCPT ); Wed, 5 Jun 2019 19:28:59 -0400 Received: from mail-pg1-f202.google.com ([209.85.215.202]:42949 "EHLO mail-pg1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726697AbfFEX26 (ORCPT ); Wed, 5 Jun 2019 19:28:58 -0400 Received: by mail-pg1-f202.google.com with SMTP id f8so242614pgp.9 for ; Wed, 05 Jun 2019 16:28:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=v3vStDx5Pe7aheTfQLsoiEaK9nnD4gp8SDW5ztRwPmE=; b=Y8RqkSDEwACK1LGtyiOSe3lEC+5FBM69y86ToRv80EQbpb4eTbhipsx/0LF61v7Ly/ 7piG+AW7aM6emSS7ghOh11FVUPCYbbxWTYrCK0ipwDbzyLqn+d/L2uonO0rghYTmx6SW egYUXo4RMt8qm9GK01X6hUSogviZSSH43wv7cHygrgXB00PvMB91bknnmE99WJmeuTqi +fWXNjz6B/12bvDEQoK3ebsdd1aev8QCfrCROJHFa0DqKCJAlR42l43UqxjK/hG0m5o9 hCu+U9FNjFyqq377i+1ZbGu5/M96CHctRvsh2gm37FGQ74ynZ8MrkFMNVeQvL2+Bllup 1u7A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=v3vStDx5Pe7aheTfQLsoiEaK9nnD4gp8SDW5ztRwPmE=; b=CumNtPxxyYhH4T8h4UlVLIrE0v9tQAbtgKw+jnuaN2X3Zay8ZiTpUuF+dz/bV51KzI 0NtZmbIU85WYl/xxIe1dPTY+UD7tqmZCmFGMIbK4py913GiY/ocMQ49F8eQBuJVP0of2 1nDCWVckvnhrmm+OMzM9QcmqeFDQE7jpg8F/IiRhSIqVwJONn8Zpwd/QeB8uadojuSX6 mWPAWzeMzBHMIIZye39thnlkbyiX9L9N9WglF50MnoFS4LFYUsfWuoo6EYth3Enn2BvM y+TGo0xpaIh30A6Y6Z1LtXkDvKLo3GfuJkDoWPRIbUd56QkETGhsgUnjNucsGT9UNCMu +KBA== X-Gm-Message-State: APjAAAVvD15Yxo1vJNegDTarjzeJKixYVQe/r+iDp6v2VVYsETBWoma5 7mD3TPU3a8lfhAlBoYguKg/Pq/HFFLo= X-Google-Smtp-Source: APXvYqzEkLgTZrVo2dEjx5zotIHuWZlH31g21ounBq3kzHnRQYZuurWTDDH0TuQj68gkPJDNIWWH3g9zgJs= X-Received: by 2002:a65:5787:: with SMTP id b7mr397609pgr.148.1559777337456; Wed, 05 Jun 2019 16:28:57 -0700 (PDT) Date: Wed, 5 Jun 2019 16:28:33 -0700 In-Reply-To: <20190605232837.31545-1-satyat@google.com> Message-Id: <20190605232837.31545-5-satyat@google.com> Mime-Version: 1.0 References: <20190605232837.31545-1-satyat@google.com> X-Mailer: git-send-email 2.22.0.rc1.311.g5d7573a151-goog Subject: [RFC PATCH v2 4/8] scsi: ufs: UFS driver v2.1 spec crypto additions From: Satya Tangirala To: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-fscrypt@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Cc: Parshuram Raju Thombare , Ladvine D Almeida , Barani Muthukumaran , Kuohong Wang , Satya Tangirala Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the crypto registers and structs defined in v2.1 of the JEDEC UFSHCI specification in preparation to add support for inline encryption to UFS. Signed-off-by: Satya Tangirala --- drivers/scsi/ufs/ufshcd.h | 5 +++ drivers/scsi/ufs/ufshci.h | 67 +++++++++++++++++++++++++++++++++++++-- 2 files changed, 70 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index ecfa898b9ccc..d3b6a6b57a37 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -692,6 +692,11 @@ struct ufs_hba { * the performance of ongoing read/write operations. */ #define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5) + /* + * This capability allows the host controller driver to use the + * inline crypto engine, if it is present + */ +#define UFSHCD_CAP_CRYPTO (1 << 6) struct devfreq *devfreq; struct ufs_clk_scaling clk_scaling; diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index 6fa889de5ee5..a757eaf99a19 100644 --- a/drivers/scsi/ufs/ufshci.h +++ b/drivers/scsi/ufs/ufshci.h @@ -90,6 +90,7 @@ enum { MASK_64_ADDRESSING_SUPPORT = 0x01000000, MASK_OUT_OF_ORDER_DATA_DELIVERY_SUPPORT = 0x02000000, MASK_UIC_DME_TEST_MODE_SUPPORT = 0x04000000, + MASK_CRYPTO_SUPPORT = 0x10000000, }; #define UFS_MASK(mask, offset) ((mask) << (offset)) @@ -143,6 +144,7 @@ enum { #define DEVICE_FATAL_ERROR 0x800 #define CONTROLLER_FATAL_ERROR 0x10000 #define SYSTEM_BUS_FATAL_ERROR 0x20000 +#define CRYPTO_ENGINE_FATAL_ERROR 0x40000 #define UFSHCD_UIC_PWR_MASK (UIC_HIBERNATE_ENTER |\ UIC_HIBERNATE_EXIT |\ @@ -153,11 +155,13 @@ enum { #define UFSHCD_ERROR_MASK (UIC_ERROR |\ DEVICE_FATAL_ERROR |\ CONTROLLER_FATAL_ERROR |\ - SYSTEM_BUS_FATAL_ERROR) + SYSTEM_BUS_FATAL_ERROR |\ + CRYPTO_ENGINE_FATAL_ERROR) #define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR |\ CONTROLLER_FATAL_ERROR |\ - SYSTEM_BUS_FATAL_ERROR) + SYSTEM_BUS_FATAL_ERROR |\ + CRYPTO_ENGINE_FATAL_ERROR) /* HCS - Host Controller Status 30h */ #define DEVICE_PRESENT 0x1 @@ -316,6 +320,61 @@ enum { INTERRUPT_MASK_ALL_VER_21 = 0x71FFF, }; +/* CCAP - Crypto Capability 100h */ +union ufs_crypto_capabilities { + __le32 reg_val; + struct { + u8 num_crypto_cap; + u8 config_count; + u8 reserved; + u8 config_array_ptr; + }; +}; + +enum ufs_crypto_key_size { + UFS_CRYPTO_KEY_SIZE_INVALID = 0x0, + UFS_CRYPTO_KEY_SIZE_128 = 0x1, + UFS_CRYPTO_KEY_SIZE_192 = 0x2, + UFS_CRYPTO_KEY_SIZE_256 = 0x3, + UFS_CRYPTO_KEY_SIZE_512 = 0x4, +}; + +enum ufs_crypto_alg { + UFS_CRYPTO_ALG_AES_XTS = 0x0, + UFS_CRYPTO_ALG_BITLOCKER_AES_CBC = 0x1, + UFS_CRYPTO_ALG_AES_ECB = 0x2, + UFS_CRYPTO_ALG_ESSIV_AES_CBC = 0x3, +}; + +/* x-CRYPTOCAP - Crypto Capability X */ +union ufs_crypto_cap_entry { + __le32 reg_val; + struct { + u8 algorithm_id; + u8 sdus_mask; /* Supported data unit size mask */ + u8 key_size; + u8 reserved; + }; +}; + +#define UFS_CRYPTO_CONFIGURATION_ENABLE (1 << 7) +#define UFS_CRYPTO_KEY_MAX_SIZE 64 +/* x-CRYPTOCFG - Crypto Configuration X */ +union ufs_crypto_cfg_entry { + __le32 reg_val[32]; + struct { + u8 crypto_key[UFS_CRYPTO_KEY_MAX_SIZE]; + u8 data_unit_size; + u8 crypto_cap_idx; + u8 reserved_1; + u8 config_enable; + u8 reserved_multi_host; + u8 reserved_2; + u8 vsb[2]; + u8 reserved_3[56]; + }; +}; + /* * Request Descriptor Definitions */ @@ -337,6 +396,7 @@ enum { UTP_NATIVE_UFS_COMMAND = 0x10000000, UTP_DEVICE_MANAGEMENT_FUNCTION = 0x20000000, UTP_REQ_DESC_INT_CMD = 0x01000000, + UTP_REQ_DESC_CRYPTO_ENABLE_CMD = 0x00800000, }; /* UTP Transfer Request Data Direction (DD) */ @@ -356,6 +416,9 @@ enum { OCS_PEER_COMM_FAILURE = 0x5, OCS_ABORTED = 0x6, OCS_FATAL_ERROR = 0x7, + OCS_DEVICE_FATAL_ERROR = 0x8, + OCS_INVALID_CRYPTO_CONFIG = 0x9, + OCS_GENERAL_CRYPTO_ERROR = 0xA, OCS_INVALID_COMMAND_STATUS = 0x0F, MASK_OCS = 0x0F, };