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Miller" , Horia Geanta Cc: Aymen Sghaier , Silvano Di Ninno , Franck Lenormand , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-imx , Iuliana Prodan Subject: [RFC PATCH 0/4] crypto: add CRYPTO_TFM_REQ_DMA flag Date: Wed, 25 Nov 2020 23:13:07 +0200 Message-Id: <20201125211311.2179-1-iuliana.prodan@oss.nxp.com> X-Mailer: git-send-email 2.17.1 Content-Type: text/plain X-Originating-IP: [83.217.231.2] X-ClientProxiedBy: AM0PR10CA0117.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:e6::34) To VI1PR0402MB3712.eurprd04.prod.outlook.com (2603:10a6:803:1c::25) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv15040.swis.ro-buh01.nxp.com (83.217.231.2) by AM0PR10CA0117.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:208:e6::34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.22 via Frontend Transport; Wed, 25 Nov 2020 21:13:51 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: cc3c2ceb-59fc-41ea-c065-08d8918702cc X-MS-TrafficTypeDiagnostic: VI1PR04MB6941: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: I0i8+fteuY8rozY1ddXUrSUvlZLlICGnk+HSQ/am6ljnuz40AzUeiOFEmiJ6cSSMhDvzYBt73/UeZK5uRZwK6SXEmWpGq1xCJ1FXquTp2c1kbxv1gqBUv4NyoEHowgdqpAlcYnPs4RljT5kDnM2q3RURXr/nB9CFbGJksqjnogmW1DNdI+vnPoExNn514tebYipZ48KtUkLbjMCfdNXnxXGTTmPkVbJYBEu+vEoApnE9a8YzyltEshIuh/54rSZoePBfOogF29Fzw/t016YehMIvy2qOrxOg8U2Em8Uv9ikZr/IM+RPHE6pf5Nx+PviRPM+EV06FWmpkvT/dDc0I5g== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VI1PR0402MB3712.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(346002)(39860400002)(376002)(396003)(366004)(136003)(316002)(86362001)(5660300002)(66476007)(66556008)(186003)(52116002)(6512007)(66946007)(26005)(110136005)(54906003)(2906002)(8676002)(6486002)(16526019)(4326008)(83380400001)(8936002)(478600001)(1076003)(6506007)(956004)(2616005)(6666004);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?Ka0eQat1pFZE958ii8nUnFk3q+i793Y6FAsDl33tsjYDexfXCJhvW+8g4tNC?= =?us-ascii?Q?2YSLpkYH55hlPqdSCq8B4AcWj93Gz25BaNBt4UuhzONmYvOePMRkqeWY8Gcr?= =?us-ascii?Q?pxcT6SePQ7cUWMm0Fe9gH0IGtK/hNKPWPssCJy/R/LT106WT6kOjI3H1XNAu?= =?us-ascii?Q?cgFw69AfbrrWGxR5yxJUGDNKNPPPdlQZ0VLTm9lWujETsz+V789Xlpl0cAtB?= =?us-ascii?Q?NsIxdQlfqPAg9diy3F2dAQe06ath75bUydEdUN+1JRyJ33w7r3cOpZjSgKKD?= =?us-ascii?Q?zfYGYV4ZxjcLHRtFEACTKpYpkyH5OTc0uor70UQZZipnc45hTGu0g9qBCSxz?= =?us-ascii?Q?O+LiqDQCWdChvBtuhVJjwpgvh4j8C14I5xc6V36wZChfxhBx0AnVSNSTfFpo?= =?us-ascii?Q?UTTT0Aoa245bpDeAYI4d543yYPiwx8bLUQq0sf3cc7WnvCV9QSPIN/meNZ91?= =?us-ascii?Q?LgSEVF0YdHbeKAKDRonWLKktNu1Ia2XPP9SiV3kODDrsXNLoeH9DjkZZtaW6?= =?us-ascii?Q?FanG4IT6b7QXBImY2DJgtAecU4Rp+pZVhj8EggseL8u31hGHuiBqnhqMha2l?= =?us-ascii?Q?ERaItbFmKHjqauzV3J0dt0bnJSlYQt4VR/2qIAKMPxV6iAMqXZLJ2RKrfAaS?= =?us-ascii?Q?rzSTaCktt1rCHzby4POa0v/qMHd6c1q9yRlaq5v4UzrcFB+K/552txFHIQku?= =?us-ascii?Q?MSlnz3tmCz35T4246jaVzj0kEYo/zj3OsWNMe+yrnFXLv5zH4mKq/gI0EZNu?= =?us-ascii?Q?N7TGvwMnnu+AeVk1b9JOqIDHmn72tSJ3ICH6BrfCv8MSxH1lKzVw2zDkQ6Eu?= =?us-ascii?Q?ziEjkv+h1y7WSx6jgxgntor49xfxMUXVYDTCaujzuVGYLHIWcavvX+vPhuKO?= =?us-ascii?Q?5GvL5aTAEUrzZ+KipSHc3vPZ2zTfiA+qwHkV6+L1/UROogVZWfA6lB6/qf+f?= =?us-ascii?Q?0TUp1a4pyXOeJk44DijI3YjD+a/VDUU0p6sxkmE+BfgftBRslyRBiGzRaFPD?= =?us-ascii?Q?/Xej?= X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: cc3c2ceb-59fc-41ea-c065-08d8918702cc X-MS-Exchange-CrossTenant-AuthSource: VI1PR0402MB3712.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Nov 2020 21:13:52.9349 (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: AqsO+DMCozi3D49174zIT1+PWJrRb6O/qXfZhiSXfLXk3k+cvw5VCpZGsXE1P+wOXjJopwpCPCPo8fSxD0A5Vw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB6941 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Iuliana Prodan Add the option to allocate the crypto request object plus any extra space needed by the driver into a DMA-able memory. Add CRYPTO_TFM_REQ_DMA flag to be used by backend implementations to indicate to crypto API the need to allocate GFP_DMA memory for private contexts of the crypto requests. For IPsec use cases, CRYPTO_TFM_REQ_DMA flag is also checked in esp_alloc_tmp() function for IPv4 and IPv6. This series includes an example of how a driver can use CRYPTO_TFM_REQ_DMA flag while setting reqsize to a larger value to avoid allocating memory at crypto request runtime. The extra size needed by the driver is added to the reqsize field that indicates how much memory could be needed per request. Iuliana Prodan (4): crypto: add CRYPTO_TFM_REQ_DMA flag net: esp: check CRYPTO_TFM_REQ_DMA flag when allocating crypto request crypto: caam - avoid allocating memory at crypto request runtime for skcipher crypto: caam - avoid allocating memory at crypto request runtime for aead drivers/crypto/caam/caamalg.c | 130 +++++++++++++++++++++++++--------- include/crypto/aead.h | 4 ++ include/crypto/akcipher.h | 21 ++++++ include/crypto/hash.h | 4 ++ include/crypto/skcipher.h | 4 ++ include/linux/crypto.h | 1 + net/ipv4/esp4.c | 7 +- net/ipv6/esp6.c | 7 +- 8 files changed, 144 insertions(+), 34 deletions(-) -- 2.17.1