From patchwork Fri Feb 21 11:50:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Tangirala X-Patchwork-Id: 1242052 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-ext4-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20161025 header.b=u+0X6p2l; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 48P8v011wDz9sS3 for ; Fri, 21 Feb 2020 22:51:40 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728198AbgBULvM (ORCPT ); Fri, 21 Feb 2020 06:51:12 -0500 Received: from mail-pg1-f202.google.com ([209.85.215.202]:41656 "EHLO mail-pg1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728114AbgBULvL (ORCPT ); Fri, 21 Feb 2020 06:51:11 -0500 Received: by mail-pg1-f202.google.com with SMTP id z10so1058781pgz.8 for ; Fri, 21 Feb 2020 03:51:10 -0800 (PST) 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=nOCr5soMbFPN55gY83Au6v1ryHYW2yWXRYcaIBANmhA=; b=u+0X6p2lyAiKGbiY9gwm5O8V+rmjbHiH10TU/uwZyq0BRDcfGEfXCSy1PcJmZpryHr tg4ltEKt3wF8jNPsLhFjh/ibMVe2hrYnNxDr2xmEHNr7fK0JX7bqbW3XeiVG63eQRB67 kmuK7LEQtZYBzDfiCkwXeTB1UypzIeBUWs0ic17FbEM7MxNrMM+i87baAIdGK4CydrHQ /XLAYoCY722lnRK8o2pHspjwibqPYhPtMy+cKDYUAWJICfch1AkK39ehV6cflt9wA/zE kaDf6odcIMNj43OxL6Y7o1K6t833M5Yd0e6sAUdQxL5k+ma4FhoY9UfnhBEtyNx2dmvP yTuA== 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=nOCr5soMbFPN55gY83Au6v1ryHYW2yWXRYcaIBANmhA=; b=oL8D7latusNSGRoZRnuOXcasvfcDMMPXhwWzbmt0h82UCx5dgd70ft6LUQzO5zmXZz pHd2pNJ1wsF4Ua8DmEPAa45AA1Ym64FBWJTqqP42wn9bTfzqen0ygX3E3pLHXyn4g2Gi W7zHiRHMu+0f62fcFHD1eoLMKewsCRFk7V37y5o1ABFo7CThQOaP0EPSFRSxuEHLFioK 5n8OGuNSAUDpMRMJjtgYdwgW6LlD2XoiDUfbpsEuLKVwN23+h1/XhGHEhURVVTCj9rEc PxHgJEdu8Nzsj0n48wwL+GkVdkyNNIkWFlIZAMqC+oOFxNaDBFW9ajQo0CGma03mAoir nnNA== X-Gm-Message-State: APjAAAUoyAI215UJLg26oeqrJTD0jZBdZZi54XZZi7qSfgpi/y7+xF88 FcC7pLQIFTWftqiJZhmCs7P3RUwkjks= X-Google-Smtp-Source: APXvYqxVbqunElJvToNd5wB4499UQvmSu1yyZ640lQs5gM8um4rCTfvTKdosPvZp9Yt1E+ZVVs0/yI9vtLQ= X-Received: by 2002:a63:6d45:: with SMTP id i66mr19203216pgc.56.1582285870200; Fri, 21 Feb 2020 03:51:10 -0800 (PST) Date: Fri, 21 Feb 2020 03:50:45 -0800 In-Reply-To: <20200221115050.238976-1-satyat@google.com> Message-Id: <20200221115050.238976-5-satyat@google.com> Mime-Version: 1.0 References: <20200221115050.238976-1-satyat@google.com> X-Mailer: git-send-email 2.25.0.265.gbab2e86ba0-goog Subject: [PATCH v7 4/9] 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, linux-ext4@vger.kernel.org Cc: Barani Muthukumaran , Kuohong Wang , Kim Boojin , Satya Tangirala Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org 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.c | 2 ++ drivers/scsi/ufs/ufshcd.h | 5 +++ drivers/scsi/ufs/ufshci.h | 67 +++++++++++++++++++++++++++++++++++++-- 3 files changed, 72 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index abd0e6b05f79..825d9eb34f10 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4759,6 +4759,8 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) case OCS_MISMATCH_RESP_UPIU_SIZE: case OCS_PEER_COMM_FAILURE: case OCS_FATAL_ERROR: + case OCS_INVALID_CRYPTO_CONFIG: + case OCS_GENERAL_CRYPTO_ERROR: default: result |= DID_ERROR << 16; dev_err(hba->dev, diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 2ae6c7c8528c..978781c538c4 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -716,6 +716,11 @@ struct ufs_hba { * for userspace to control the power management. */ #define UFSHCD_CAP_RPM_AUTOSUSPEND (1 << 6) + /* + * This capability allows the host controller driver to use the + * inline crypto engine, if it is present + */ +#define UFSHCD_CAP_CRYPTO (1 << 7) struct devfreq *devfreq; struct ufs_clk_scaling clk_scaling; diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index c2961d37cc1c..c0651fe6dbbc 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_HIBERN8_MASK (UIC_HIBERNATE_ENTER |\ UIC_HIBERNATE_EXIT) @@ -155,11 +157,13 @@ 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 @@ -318,6 +322,61 @@ 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 */ @@ -339,6 +398,7 @@ 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) */ @@ -358,6 +418,9 @@ 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, };