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Miller" Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 09/10] crypto: caam/qi - add support for XTS with 16B IV Date: Tue, 22 Sep 2020 19:03:27 +0300 Message-Id: <20200922160328.28926-10-andrei.botila@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200922160328.28926-1-andrei.botila@oss.nxp.com> References: <20200922160328.28926-1-andrei.botila@oss.nxp.com> Content-Type: text/plain X-ClientProxiedBy: AM4PR0302CA0022.eurprd03.prod.outlook.com (2603:10a6:205:2::35) 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 AM4PR0302CA0022.eurprd03.prod.outlook.com (2603:10a6:205:2::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3391.13 via Frontend Transport; Tue, 22 Sep 2020 16:04:07 +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: b14814fc-2879-4d94-0ca5-08d85f1122c8 X-MS-TrafficTypeDiagnostic: VI1PR04MB7072: 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: aKGVkwk0VrBcJ75Tf8NsSqekfEXqFmZRGS1xNUTkMgsvX4dpwDVta8Vc8WFh9XG4CeV4OZQRu2G7Fvpf3P+X5KKJvZoyOSFvj8je+jM4s5DDapapapik3u3CSfbAg+XctMRY3C/nyWC8vdteCb2Pznj1kOBAih6+OKl4k5YBqBl12M0iHQ/Wqcvcf1bDZQ6ba7XkopD7cS4PyibvX4GFYOwoXftO4INpaRBQvHfqT3ZjziMBoHIcXGs/TN5vHV0GoqCbNf1uKztpGcxefuClaNX73kPMKtfsOlJEk4gp0wRK4JRdYrSINwsnMTNpPQNL/uwb7sHuMyUi5X92WQNMXA== 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;SFS:(4636009)(396003)(376002)(366004)(346002)(39860400002)(136003)(1076003)(4326008)(2616005)(6512007)(83380400001)(186003)(16526019)(2906002)(956004)(5660300002)(66556008)(66476007)(8936002)(316002)(6506007)(44832011)(66946007)(52116002)(6486002)(478600001)(110136005)(8676002)(26005)(86362001)(6666004);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: b14814fc-2879-4d94-0ca5-08d85f1122c8 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Sep 2020 16:04:07.7452 (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: 9qMkB6CMQRnW9YxSzPZDD3U9gNQhi2dvZljKhticdNsthiPrRa8AZPY0/fQNmi4j7JPU0aOAN2LDMWrSJ3IuBQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB7072 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@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 | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c index efcc7cb050fc..66f60d78bdc8 100644 --- a/drivers/crypto/caam/caamalg_qi.c +++ b/drivers/crypto/caam/caamalg_qi.c @@ -733,6 +733,7 @@ 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; @@ -745,9 +746,11 @@ static int xts_skcipher_setkey(struct crypto_skcipher *skcipher, const u8 *key, if (keylen != 2 * AES_KEYSIZE_128 && keylen != 2 * AES_KEYSIZE_256) ctx->xts_key_fallback = true; - err = crypto_skcipher_setkey(ctx->fallback, key, keylen); - if (err) - return err; + if (ctrlpriv->era <= 8 || ctx->xts_key_fallback) { + err = crypto_skcipher_setkey(ctx->fallback, key, keylen); + if (err) + return err; + } ctx->cdata.keylen = keylen; ctx->cdata.key_virt = key; @@ -1403,6 +1406,7 @@ 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; /* @@ -1413,7 +1417,7 @@ static inline int skcipher_crypt(struct skcipher_request *req, bool encrypt) if (!req->cryptlen && !ctx->fallback) return 0; - if (ctx->fallback && (xts_skcipher_ivsize(req) || + if (ctx->fallback && ((ctrlpriv->era <= 8 && xts_skcipher_ivsize(req)) || ctx->xts_key_fallback)) { struct caam_skcipher_req_ctx *rctx = skcipher_request_ctx(req); -- 2.17.1