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Miller" Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH RESEND 8/9] crypto: caam/qi - add support for XTS with 16B IV Date: Thu, 6 Aug 2020 19:35:50 +0300 Message-Id: <20200806163551.14395-9-andrei.botila@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200806163551.14395-1-andrei.botila@oss.nxp.com> References: <20200806163551.14395-1-andrei.botila@oss.nxp.com> Content-Type: text/plain X-ClientProxiedBy: AM4PR0902CA0015.eurprd09.prod.outlook.com (2603:10a6:200:9b::25) 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 AM4PR0902CA0015.eurprd09.prod.outlook.com (2603:10a6:200:9b::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3261.19 via Frontend Transport; Thu, 6 Aug 2020 16:36:23 +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: 48ca1fea-dac6-481c-fd82-08d83a26db91 X-MS-TrafficTypeDiagnostic: VI1PR04MB6959: 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: SGV1s/nVHnfHTaLOy0J4g3b+7ViKm5jgKcrWPknigje+z3ZZcyKw8P+YnzVwBPfxpIi6fBOA45ctvgQJCR3mULVMmahGLINs2B7W/XHqp7khyaxWUvV2jhTKUd/WhfcCh2+/rGtIIFBaOg1D/bpEweAshPtBbI5ovl7WRaKECN8IEo6uGtvThr6FyH5mRsQjYVyeVzyPwufOEoaa4zpXLS3LZ/ZB0UXBTNOLP/xsMtU5JMVmpyBDsGgcbidqnvipLQz/qNj464WZyGGytb4cpLgREseF3vlEvlJvQ88K9QOjiTwt9uDVN3g5hARiZUvHV6GqPoVpdsATStOgcIRRZQ== 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)(376002)(346002)(136003)(396003)(39860400002)(366004)(186003)(2906002)(16526019)(6486002)(8676002)(4326008)(6512007)(26005)(83380400001)(5660300002)(2616005)(956004)(6506007)(478600001)(8936002)(44832011)(66946007)(316002)(86362001)(66476007)(66556008)(110136005)(1076003)(6666004)(52116002);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: 48ca1fea-dac6-481c-fd82-08d83a26db91 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Aug 2020 16:36:24.1220 (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: 3lR+Z4cv16GoAK7ls0EzKP1A+rOPKyiiZNNugocySfnJsawINjGq6cBNFRPr7NlE009Gtb4+CJXE0EA8PY8Hcg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB6959 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_qi.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index 1d775a55fcf5..df58a899e97d 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -732,6 +732,7 @@ static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, { struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); struct device *jrdev = ctx->jrdev; + struct caam_drv_private *ctrlpriv = dev_get_drvdata(jrdev->parent); int ret = 0; int err; @@ -741,9 +742,12 @@ 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 (ctrlpriv->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; @@ -1405,12 +1409,13 @@ static inline int skcipher_crypt(struct skcipher_request *req, bool encrypt) struct skcipher_edesc *edesc; struct crypto_skcipher *skcipher = crypto_skcipher_reqtfm(req); struct caam_ctx *ctx = crypto_skcipher_ctx(skcipher); + struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctx->jrdev->parent); int ret; if (!req->cryptlen) return 0; - if (ctx->fallback && (xts_skcipher_ivsize(req) || + if (ctx->fallback && ((ctrlpriv->era <= 8 && xts_skcipher_ivsize(req)) || (ctx->cdata.keylen != 2 * AES_KEYSIZE_128 && ctx->cdata.keylen != 2 * AES_KEYSIZE_256))) { struct caam_skcipher_req_ctx *rctx = skcipher_request_ctx(req); -- 2.17.1