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Miller" Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 9/9] crypto: caam/qi2 - add support for XTS with 16B IV Date: Thu, 6 Aug 2020 14:41:27 +0300 Message-Id: <20200806114127.8650-10-andrei.botila@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200806114127.8650-1-andrei.botila@oss.nxp.com> References: <20200806114127.8650-1-andrei.botila@oss.nxp.com> Content-Type: text/plain X-ClientProxiedBy: AM0PR06CA0101.eurprd06.prod.outlook.com (2603:10a6:208:fa::42) To VE1PR04MB6608.eurprd04.prod.outlook.com (2603:10a6:803:125::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv15007.swis.ro-buh01.nxp.com (83.217.231.2) by AM0PR06CA0101.eurprd06.prod.outlook.com (2603:10a6:208:fa::42) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3261.18 via Frontend Transport; Thu, 6 Aug 2020 11:41:56 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [83.217.231.2] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: db75bd79-b086-4ee5-6bd9-08d839fdb95b X-MS-TrafficTypeDiagnostic: VI1PR0402MB3440: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3631; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: UfVR2x6EOP4a3KRHtlb50513VFGih+QKs4dFBaCyo33DY46lX5ay9eYbFaA29R/Kdz3DemeUu5g4r8fN6bsHozCSAvV65AlZwFirB78cUDFKlQjEuRx9QaoWB6S/2Y8cWDi0Lf9ee60tIIG7P3foF1mG6ULTkNVeVFrH9m+DclTsNx4PjGjZNR23oo5FsyA96ua5ZYEe3yCJjH8JxwH3kQq2PHVeDcGiRdxF9QU2tIBvnzeeAcjcwTOB7MVw5a1UZtIiQ9TM3xZ7o86X3K5o3W+XFdJ/ZEGvHxyrVYE5qBV2BOLykftDk5a95ky1JGL1x3gZi1vfF029Og0Q3zil4A== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VE1PR04MB6608.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(366004)(396003)(376002)(39860400002)(346002)(136003)(110136005)(316002)(6666004)(6512007)(478600001)(956004)(2616005)(6486002)(4326008)(1076003)(44832011)(52116002)(6506007)(86362001)(186003)(26005)(16526019)(66556008)(66476007)(2906002)(66946007)(83380400001)(8676002)(5660300002)(8936002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: db75bd79-b086-4ee5-6bd9-08d839fdb95b X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Aug 2020 11:41:57.3519 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: g3tIpvG0R+26SFplJC8YPEWaq4g3G8/sAu8P/GLtJCunzzRGef1vowILlxqb1IM6UkcoBpSopc1hGegBNVavoQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0402MB3440 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrei Botila Newer CAAM versions (Era 9+) support 16B IVs. Since for these devices the HW limitation is no longer present newer version should process the requests containing 16B IVs directly in hardware without using a fallback. Signed-off-by: Andrei Botila --- drivers/crypto/caam/caamalg_qi2.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/crypto/caam/caamalg_qi2.c b/drivers/crypto/caam/caamalg_qi2.c index f2f137f47972..99b1267b1a0b 100644 --- a/drivers/crypto/caam/caamalg_qi2.c +++ b/drivers/crypto/caam/caamalg_qi2.c @@ -1057,6 +1057,7 @@ static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, { struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); struct device *dev = ctx->dev; + struct dpaa2_caam_priv *priv = dev_get_drvdata(dev); struct caam_flc *flc; u32 *desc; int err; @@ -1067,9 +1068,12 @@ static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, return err; } - err = crypto_skcipher_setkey(ctx->fallback, key, keylen); - if (err) - return err; + if (priv->sec_attr.era <= 8 || (keylen != 2 * AES_KEYSIZE_128 && + keylen != 2 * AES_KEYSIZE_256)) { + err = crypto_skcipher_setkey(ctx->fallback, key, keylen); + if (err) + return err; + } ctx->cdata.keylen = keylen; ctx->cdata.key_virt = key; @@ -1472,12 +1476,13 @@ static int skcipher_encrypt(struct skcipher_request *req) struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); struct caam_request *caam_req = skcipher_request_ctx(req); + struct dpaa2_caam_priv *priv = dev_get_drvdata(ctx->dev); int ret; if (!req->cryptlen) return 0; - if (ctx->fallback && (xts_skcipher_ivsize(req) || + if (ctx->fallback && ((priv->sec_attr.era <= 8 && xts_skcipher_ivsize(req)) || (ctx->cdata.keylen != 2 * AES_KEYSIZE_128 && ctx->cdata.keylen != 2 * AES_KEYSIZE_256))) { skcipher_request_set_tfm(&caam_req->fallback_req, ctx->fallback); @@ -1517,12 +1522,13 @@ static int skcipher_decrypt(struct skcipher_request *req) struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); struct caam_request *caam_req = skcipher_request_ctx(req); + struct dpaa2_caam_priv *priv = dev_get_drvdata(ctx->dev); int ret; if (!req->cryptlen) return 0; - if (ctx->fallback && (xts_skcipher_ivsize(req) || + if (ctx->fallback && ((priv->sec_attr.era <= 8 && xts_skcipher_ivsize(req)) || (ctx->cdata.keylen != 2 * AES_KEYSIZE_128 && ctx->cdata.keylen != 2 * AES_KEYSIZE_256))) { skcipher_request_set_tfm(&caam_req->fallback_req, ctx->fallback); -- 2.17.1