From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id C84C3A0C46; Thu, 8 Apr 2021 22:50:51 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 562DB141240; Thu, 8 Apr 2021 22:49:55 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by mails.dpdk.org (Postfix) with ESMTP id 16CF214122A for ; Thu, 8 Apr 2021 22:49:51 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from shirik@nvidia.com) with SMTP; 8 Apr 2021 23:49:49 +0300 Received: from nvidia.com (c-236-0-60-063.mtl.labs.mlnx [10.236.0.63]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 138KnAJa028067; Thu, 8 Apr 2021 23:49:49 +0300 From: Shiri Kuzin To: dev@dpdk.org Cc: matan@nvidia.com, gakhil@marvell.com, suanmingm@nvidia.com Date: Thu, 8 Apr 2021 23:48:42 +0300 Message-Id: <20210408204849.9543-18-shirik@nvidia.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20210408204849.9543-1-shirik@nvidia.com> References: <1615447568-260965-1-git-send-email-matan@nvidia.com> <20210408204849.9543-1-shirik@nvidia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 17/24] crypto/mlx5: add DEK object management X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" A DEK(Data encryption Key) is an mlx5 HW object which represents the cipher algorithm key. The DEKs are used during data encryption/decryption operations. In symmetric algorithms like AES-STS, we use the same DEK for both encryption and decryption. Use the mlx5 hash-list tool to manage the DEK objects in the PMD. Provide the compare, create and destroy functions to manage DEKs in hash-list and introduce an internal API to setup and unset the DEK management and to prepare and destroy specific DEK object. The DEK hash-list will be created in dev_configure routine and destroyed in dev_close routine. Signed-off-by: Shiri Kuzin Acked-by: Matan Azrad --- drivers/crypto/mlx5/meson.build | 1 + drivers/crypto/mlx5/mlx5_crypto.c | 44 +++++---- drivers/crypto/mlx5/mlx5_crypto.h | 51 ++++++++++ drivers/crypto/mlx5/mlx5_crypto_dek.c | 135 ++++++++++++++++++++++++++ 4 files changed, 214 insertions(+), 17 deletions(-) create mode 100644 drivers/crypto/mlx5/mlx5_crypto.h create mode 100644 drivers/crypto/mlx5/mlx5_crypto_dek.c diff --git a/drivers/crypto/mlx5/meson.build b/drivers/crypto/mlx5/meson.build index 5bf0912766..0666c35094 100644 --- a/drivers/crypto/mlx5/meson.build +++ b/drivers/crypto/mlx5/meson.build @@ -11,6 +11,7 @@ fmt_name = 'mlx5_crypto' deps += ['common_mlx5', 'eal', 'cryptodev'] sources = files( 'mlx5_crypto.c', + 'mlx5_crypto_dek.c', ) cflags_options = [ '-std=c11', diff --git a/drivers/crypto/mlx5/mlx5_crypto.c b/drivers/crypto/mlx5/mlx5_crypto.c index 6e40176087..17aaaaa53d 100644 --- a/drivers/crypto/mlx5/mlx5_crypto.c +++ b/drivers/crypto/mlx5/mlx5_crypto.c @@ -3,12 +3,9 @@ */ #include -#include #include +#include #include -#include -#include -#include #include #include @@ -17,19 +14,10 @@ #include #include "mlx5_crypto_utils.h" +#include "mlx5_crypto.h" #define MLX5_CRYPTO_DRIVER_NAME mlx5_crypto -#define MLX5_CRYPTO_LOG_NAME pmd.crypto.mlx5 - -struct mlx5_crypto_priv { - TAILQ_ENTRY(mlx5_crypto_priv) next; - struct ibv_context *ctx; /* Device context. */ - struct rte_pci_device *pci_dev; - struct rte_cryptodev *crypto_dev; - void *uar; /* User Access Region. */ - uint32_t pdn; /* Protection Domain number. */ - struct ibv_pd *pd; -}; +#define MLX5_CRYPTO_LOG_NAME pmd.crypto.mlx5 TAILQ_HEAD(mlx5_crypto_privs, mlx5_crypto_priv) mlx5_crypto_priv_list = TAILQ_HEAD_INITIALIZER(mlx5_crypto_priv_list); @@ -48,11 +36,33 @@ static const struct rte_driver mlx5_drv = { static struct cryptodev_driver mlx5_cryptodev_driver; +static int +mlx5_crypto_dev_configure(struct rte_cryptodev *dev, + struct rte_cryptodev_config *config __rte_unused) +{ + struct mlx5_crypto_priv *priv = dev->data->dev_private; + + if (mlx5_crypto_dek_setup(priv) != 0) { + DRV_LOG(ERR, "Dek hash list creation has failed."); + return -ENOMEM; + } + return 0; +} + +static int +mlx5_crypto_dev_close(struct rte_cryptodev *dev) +{ + struct mlx5_crypto_priv *priv = dev->data->dev_private; + + mlx5_crypto_dek_unset(priv); + return 0; +} + static struct rte_cryptodev_ops mlx5_crypto_ops = { - .dev_configure = NULL, + .dev_configure = mlx5_crypto_dev_configure, .dev_start = NULL, .dev_stop = NULL, - .dev_close = NULL, + .dev_close = mlx5_crypto_dev_close, .dev_infos_get = NULL, .stats_get = NULL, .stats_reset = NULL, diff --git a/drivers/crypto/mlx5/mlx5_crypto.h b/drivers/crypto/mlx5/mlx5_crypto.h new file mode 100644 index 0000000000..4ec67a7e0f --- /dev/null +++ b/drivers/crypto/mlx5/mlx5_crypto.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2021 Mellanox Technologies, Ltd + */ + +#ifndef MLX5_CRYPTO_H_ +#define MLX5_CRYPTO_H_ + +#include + +#include +#include + +#include + +#define MLX5_CRYPTO_DEK_HTABLE_SZ (1 << 11) +#define MLX5_CRYPTO_KEY_LENGTH 80 + +struct mlx5_crypto_priv { + TAILQ_ENTRY(mlx5_crypto_priv) next; + struct ibv_context *ctx; /* Device context. */ + struct rte_pci_device *pci_dev; + struct rte_cryptodev *crypto_dev; + void *uar; /* User Access Region. */ + uint32_t pdn; /* Protection Domain number. */ + struct ibv_pd *pd; + struct mlx5_hlist *dek_hlist; /* Dek hash list. */ +}; + +struct mlx5_crypto_dek { + struct mlx5_hlist_entry entry; /* Pointer to DEK hash list entry. */ + struct mlx5_devx_obj *obj; /* Pointer to DEK DevX object. */ + uint8_t data[MLX5_CRYPTO_KEY_LENGTH]; /* DEK key data. */ + bool size_is_48; /* Whether the key\data size is 48 bytes or not. */ +}; + +int +mlx5_crypto_dek_destroy(struct mlx5_crypto_priv *priv, + struct mlx5_crypto_dek *dek); + +struct mlx5_crypto_dek * +mlx5_crypto_dek_prepare(struct mlx5_crypto_priv *priv, + struct rte_crypto_cipher_xform *cipher); + +int +mlx5_crypto_dek_setup(struct mlx5_crypto_priv *priv); + +void +mlx5_crypto_dek_unset(struct mlx5_crypto_priv *priv); + +#endif /* MLX5_CRYPTO_H_ */ + diff --git a/drivers/crypto/mlx5/mlx5_crypto_dek.c b/drivers/crypto/mlx5/mlx5_crypto_dek.c new file mode 100644 index 0000000000..70410fed57 --- /dev/null +++ b/drivers/crypto/mlx5/mlx5_crypto_dek.c @@ -0,0 +1,135 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2018 Mellanox Technologies, Ltd + */ + +#include +#include +#include +#include + +#include +#include + +#include "mlx5_crypto_utils.h" +#include "mlx5_crypto.h" + +struct mlx5_crypto_dek_ctx { + struct rte_crypto_cipher_xform *cipher; + struct mlx5_crypto_priv *priv; +}; + +int +mlx5_crypto_dek_destroy(struct mlx5_crypto_priv *priv, + struct mlx5_crypto_dek *dek) +{ + return mlx5_hlist_unregister(priv->dek_hlist, &dek->entry); +} + +struct mlx5_crypto_dek * +mlx5_crypto_dek_prepare(struct mlx5_crypto_priv *priv, + struct rte_crypto_cipher_xform *cipher) +{ + struct mlx5_hlist *dek_hlist = priv->dek_hlist; + struct mlx5_crypto_dek_ctx dek_ctx = { + .cipher = cipher, + .priv = priv, + }; + struct rte_crypto_cipher_xform *cipher_ctx = cipher; + uint64_t key64 = __rte_raw_cksum(cipher_ctx->key.data, + cipher_ctx->key.length, 0); + struct mlx5_hlist_entry *entry = mlx5_hlist_register(dek_hlist, + key64, &dek_ctx); + + return entry == NULL ? NULL : + container_of(entry, struct mlx5_crypto_dek, entry); +} + +static int +mlx5_crypto_dek_match_cb(struct mlx5_hlist *list __rte_unused, + struct mlx5_hlist_entry *entry, + uint64_t key __rte_unused, void *cb_ctx) +{ + struct mlx5_crypto_dek_ctx *ctx = cb_ctx; + struct rte_crypto_cipher_xform *cipher_ctx = ctx->cipher; + struct mlx5_crypto_dek *dek = + container_of(entry, typeof(*dek), entry); + uint32_t key_len = dek->size_is_48 ? 48 : 80; + + if (key_len != cipher_ctx->key.length) + return -1; + return memcmp(cipher_ctx->key.data, dek->data, key_len); +} + +static struct mlx5_hlist_entry * +mlx5_crypto_dek_create_cb(struct mlx5_hlist *list __rte_unused, + uint64_t key __rte_unused, void *cb_ctx) +{ + struct mlx5_crypto_dek_ctx *ctx = cb_ctx; + struct rte_crypto_cipher_xform *cipher_ctx = ctx->cipher; + struct mlx5_crypto_dek *dek = rte_zmalloc(__func__, sizeof(*dek), + RTE_CACHE_LINE_SIZE); + struct mlx5_devx_dek_attr dek_attr = { + .pd = ctx->priv->pdn, + .key_purpose = MLX5_CRYPTO_KEY_PURPOSE_AES_XTS, + }; + + if (dek == NULL) { + DRV_LOG(ERR, "Failed to allocate dek memory."); + return NULL; + } + switch (cipher_ctx->key.length) { + case 48: + dek->size_is_48 = true; + dek_attr.key_size = MLX5_CRYPTO_KEY_SIZE_128b; + break; + case 80: + dek->size_is_48 = false; + dek_attr.key_size = MLX5_CRYPTO_KEY_SIZE_256b; + break; + default: + DRV_LOG(ERR, "Key size not supported."); + return NULL; + } + rte_memcpy(&dek_attr.key, cipher_ctx->key.data, cipher_ctx->key.length); + dek->obj = mlx5_devx_cmd_create_dek_obj(ctx->priv->ctx, &dek_attr); + if (dek->obj == NULL) { + rte_free(dek); + return NULL; + } + rte_memcpy(&dek->data, cipher_ctx->key.data, cipher_ctx->key.length); + return &dek->entry; +} + +static void +mlx5_crypto_dek_remove_cb(struct mlx5_hlist *list __rte_unused, + struct mlx5_hlist_entry *entry) +{ + struct mlx5_crypto_dek *dek = + container_of(entry, typeof(*dek), entry); + + claim_zero(mlx5_devx_cmd_destroy(dek->obj)); + rte_free(dek); +} + + +int +mlx5_crypto_dek_setup(struct mlx5_crypto_priv *priv) +{ + priv->dek_hlist = mlx5_hlist_create("dek_hlist", + MLX5_CRYPTO_DEK_HTABLE_SZ, + 0, MLX5_HLIST_WRITE_MOST | + MLX5_HLIST_DIRECT_KEY, + mlx5_crypto_dek_create_cb, + mlx5_crypto_dek_match_cb, + mlx5_crypto_dek_remove_cb); + if (priv->dek_hlist == NULL) + return -1; + return 0; +} + +void +mlx5_crypto_dek_unset(struct mlx5_crypto_priv *priv) +{ + mlx5_hlist_destroy(priv->dek_hlist); + priv->dek_hlist = NULL; +} -- 2.21.0