From patchwork Wed Aug 21 07:57:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Tangirala X-Patchwork-Id: 11105907 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 A3A2813A4 for ; Wed, 21 Aug 2019 07:57:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 816A2233A1 for ; Wed, 21 Aug 2019 07:57:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="OWdD2E2n" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727046AbfHUH5b (ORCPT ); Wed, 21 Aug 2019 03:57:31 -0400 Received: from mail-pf1-f202.google.com ([209.85.210.202]:40171 "EHLO mail-pf1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727038AbfHUH53 (ORCPT ); Wed, 21 Aug 2019 03:57:29 -0400 Received: by mail-pf1-f202.google.com with SMTP id e18so1052272pfj.7 for ; Wed, 21 Aug 2019 00:57:29 -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=dlCXskObrs6I/GXMJskEtfG45JphLBZCR9QbVAGGe44=; b=OWdD2E2n8s4ALffo3R1tzDMPwr2B5uSVYaJuiKll7w8gonewPnWws7SxvPXctV3dKj d4NryU1gOd4/TInj+5HouqXzVGnkIaScOI79BCHHIwYOQJAazHl9LWl6IAYsJg0yG0vk 6/+I+yy5au+zlKKER5Q5i2hGLWNH0dKUeARswHYrV0EvXoaSJBff0WaKQXGAgicfTRcu u2SWTU9hQZYnltD9guTJ9/mi9MtxP3qFQ15aQfPRxKoDScnQ33dqO8/vId32KKsWcvCm itC/LKsY3D55/fpraqO+eiw2N886xR3hlqmkTPBNjnrA55JHQe8uM78txKyqsmnJIini vV7Q== 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=dlCXskObrs6I/GXMJskEtfG45JphLBZCR9QbVAGGe44=; b=Wwj1S6ZH+IJlOxs+grM8ZYLPyha0Izz0JlF6y33I2ZgNqLPr0UcKNeLTJYOabHkWnD v7yeijKgkV/Ua4AudM/pZLndfyTLdyDMTmtTaHE0GKENGF9gjKFCQ3Izdufuobj6y27l DI6E7XDIrkC3r0dt2wc5bZZ6E8RETg6TftMMJTcQD+0sWjvMqxR6QkCc+cr4bhKrnXhd Qglo7iwoV3+RkwGJWcUBur4KGwAr5VgSivQlJWKxYEjbjWIFXs01oDiuDql4ff89fspA ZsO8aHvuLLUrDZjp23jhKDjlFyCbzPggZxvYnXZEJoSTF222CfX7ydSL8QaeB2n5NZmn /GEQ== X-Gm-Message-State: APjAAAU7PeeHwnLfXJSNoVblh+SB+l6tG3F/km7QS3O0oyxLxHD2unRK iyPtkrcZ/eVUdvacJiR8RUAnhgTcXC54xUitStm2w8coBD2IUAkX44vwIsOoq7icvu3MZvqoLUU aF22JfiAy6w1I6Bib3q0dr190GlI/i+0eJcSRFGs0+ZBPL68IueIVXR7l3fN81er5ftkD X-Google-Smtp-Source: APXvYqy0AY04z7iMj58E06vhJi4bzUYZWHzmdURFvAJpZ7vmflIw1KAf1t//phsYx4q9FlZ0Fu2x03gIyUs= X-Received: by 2002:a63:2157:: with SMTP id s23mr4828335pgm.167.1566374248499; Wed, 21 Aug 2019 00:57:28 -0700 (PDT) Date: Wed, 21 Aug 2019 00:57:10 -0700 In-Reply-To: <20190821075714.65140-1-satyat@google.com> Message-Id: <20190821075714.65140-5-satyat@google.com> Mime-Version: 1.0 References: <20190821075714.65140-1-satyat@google.com> X-Mailer: git-send-email 2.23.0.rc1.153.gdeed80330f-goog Subject: [PATCH v4 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: Barani Muthukumaran , Kuohong Wang , Kim Boojin , Satya Tangirala Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@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 e274053109d0..212f7653c4c5 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4722,6 +4722,8 @@ 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 994d73d03207..10b5cd26a020 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 dbb75cd28dc8..291f6c3e79db 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, };