crypto: rockchip - switch to skcipher API

Commit 7a7ffe65c8c5 ("crypto: skcipher - Add top-level skcipher interface")
dated 20 august 2015 introduced the new skcipher API which is supposed to
replace both blkcipher and ablkcipher. While all consumers of the API have
been converted long ago, some producers of the ablkcipher remain, forcing
us to keep the ablkcipher support routines alive, along with the matching
code to expose [a]blkciphers via the skcipher API.

So switch this driver to the skcipher API, allowing us to finally drop the
ablkcipher code in the near future.

Cc: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 538 insertions, 0 deletions

diff --git a/drivers/crypto/rockchip/rk3288_crypto_skcipher.c b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
new file mode 100644
index 000000000000..ca4de4ddfe1f
--- /dev/null
+++ b/drivers/crypto/rockchip/rk3288_crypto_skcipher.c
@@ -0,0 +1,538 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Crypto acceleration support for Rockchip RK3288
+ *
+ * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd
+ *
+ * Author: Zain Wang <zain.wang@rock-chips.com>
+ *
+ * Some ideas are from marvell-cesa.c and s5p-sss.c driver.
+ */
+#include "rk3288_crypto.h"
+
+#define RK_CRYPTO_DEC			BIT(0)
+
+static void rk_crypto_complete(struct crypto_async_request *base, int err)
+{
+	if (base->complete)
+		base->complete(base, err);
+}
+
+static int rk_handle_req(struct rk_crypto_info *dev,
+			 struct skcipher_request *req)
+{
+	if (!IS_ALIGNED(req->cryptlen, dev->align_size))
+		return -EINVAL;
+	else
+		return dev->enqueue(dev, &req->base);
+}
+
+static int rk_aes_setkey(struct crypto_skcipher *cipher,
+			 const u8 *key, unsigned int keylen)
+{
+	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
+	struct rk_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	if (keylen != AES_KEYSIZE_128 && keylen != AES_KEYSIZE_192 &&
+	    keylen != AES_KEYSIZE_256) {
+		crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		return -EINVAL;
+	}
+	ctx->keylen = keylen;
+	memcpy_toio(ctx->dev->reg + RK_CRYPTO_AES_KEY_0, key, keylen);
+	return 0;
+}
+
+static int rk_des_setkey(struct crypto_skcipher *cipher,
+			 const u8 *key, unsigned int keylen)
+{
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+	int err;
+
+	err = verify_skcipher_des_key(cipher, key);
+	if (err)
+		return err;
+
+	ctx->keylen = keylen;
+	memcpy_toio(ctx->dev->reg + RK_CRYPTO_TDES_KEY1_0, key, keylen);
+	return 0;
+}
+
+static int rk_tdes_setkey(struct crypto_skcipher *cipher,
+			  const u8 *key, unsigned int keylen)
+{
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+	int err;
+
+	err = verify_skcipher_des3_key(cipher, key);
+	if (err)
+		return err;
+
+	ctx->keylen = keylen;
+	memcpy_toio(ctx->dev->reg + RK_CRYPTO_TDES_KEY1_0, key, keylen);
+	return 0;
+}
+
+static int rk_aes_ecb_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_AES_ECB_MODE;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_aes_ecb_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_AES_ECB_MODE | RK_CRYPTO_DEC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_aes_cbc_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_AES_CBC_MODE;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_aes_cbc_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_AES_CBC_MODE | RK_CRYPTO_DEC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des_ecb_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = 0;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des_ecb_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_DEC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des_cbc_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des_cbc_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_TDES_CHAINMODE_CBC | RK_CRYPTO_DEC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des3_ede_ecb_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_TDES_SELECT;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des3_ede_ecb_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_DEC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des3_ede_cbc_encrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC;
+	return rk_handle_req(dev, req);
+}
+
+static int rk_des3_ede_cbc_decrypt(struct skcipher_request *req)
+{
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct rk_crypto_info *dev = ctx->dev;
+
+	ctx->mode = RK_CRYPTO_TDES_SELECT | RK_CRYPTO_TDES_CHAINMODE_CBC |
+		    RK_CRYPTO_DEC;
+	return rk_handle_req(dev, req);
+}
+
+static void rk_ablk_hw_init(struct rk_crypto_info *dev)
+{
+	struct skcipher_request *req =
+		skcipher_request_cast(dev->async_req);
+	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(cipher);
+	u32 ivsize, block, conf_reg = 0;
+
+	block = crypto_tfm_alg_blocksize(tfm);
+	ivsize = crypto_skcipher_ivsize(cipher);
+
+	if (block == DES_BLOCK_SIZE) {
+		ctx->mode |= RK_CRYPTO_TDES_FIFO_MODE |
+			     RK_CRYPTO_TDES_BYTESWAP_KEY |
+			     RK_CRYPTO_TDES_BYTESWAP_IV;
+		CRYPTO_WRITE(dev, RK_CRYPTO_TDES_CTRL, ctx->mode);
+		memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, req->iv, ivsize);
+		conf_reg = RK_CRYPTO_DESSEL;
+	} else {
+		ctx->mode |= RK_CRYPTO_AES_FIFO_MODE |
+			     RK_CRYPTO_AES_KEY_CHANGE |
+			     RK_CRYPTO_AES_BYTESWAP_KEY |
+			     RK_CRYPTO_AES_BYTESWAP_IV;
+		if (ctx->keylen == AES_KEYSIZE_192)
+			ctx->mode |= RK_CRYPTO_AES_192BIT_key;
+		else if (ctx->keylen == AES_KEYSIZE_256)
+			ctx->mode |= RK_CRYPTO_AES_256BIT_key;
+		CRYPTO_WRITE(dev, RK_CRYPTO_AES_CTRL, ctx->mode);
+		memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, req->iv, ivsize);
+	}
+	conf_reg |= RK_CRYPTO_BYTESWAP_BTFIFO |
+		    RK_CRYPTO_BYTESWAP_BRFIFO;
+	CRYPTO_WRITE(dev, RK_CRYPTO_CONF, conf_reg);
+	CRYPTO_WRITE(dev, RK_CRYPTO_INTENA,
+		     RK_CRYPTO_BCDMA_ERR_ENA | RK_CRYPTO_BCDMA_DONE_ENA);
+}
+
+static void crypto_dma_start(struct rk_crypto_info *dev)
+{
+	CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAS, dev->addr_in);
+	CRYPTO_WRITE(dev, RK_CRYPTO_BRDMAL, dev->count / 4);
+	CRYPTO_WRITE(dev, RK_CRYPTO_BTDMAS, dev->addr_out);
+	CRYPTO_WRITE(dev, RK_CRYPTO_CTRL, RK_CRYPTO_BLOCK_START |
+		     _SBF(RK_CRYPTO_BLOCK_START, 16));
+}
+
+static int rk_set_data_start(struct rk_crypto_info *dev)
+{
+	int err;
+	struct skcipher_request *req =
+		skcipher_request_cast(dev->async_req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	u32 ivsize = crypto_skcipher_ivsize(tfm);
+	u8 *src_last_blk = page_address(sg_page(dev->sg_src)) +
+		dev->sg_src->offset + dev->sg_src->length - ivsize;
+
+	/* Store the iv that need to be updated in chain mode.
+	 * And update the IV buffer to contain the next IV for decryption mode.
+	 */
+	if (ctx->mode & RK_CRYPTO_DEC) {
+		memcpy(ctx->iv, src_last_blk, ivsize);
+		sg_pcopy_to_buffer(dev->first, dev->src_nents, req->iv,
+				   ivsize, dev->total - ivsize);
+	}
+
+	err = dev->load_data(dev, dev->sg_src, dev->sg_dst);
+	if (!err)
+		crypto_dma_start(dev);
+	return err;
+}
+
+static int rk_ablk_start(struct rk_crypto_info *dev)
+{
+	struct skcipher_request *req =
+		skcipher_request_cast(dev->async_req);
+	unsigned long flags;
+	int err = 0;
+
+	dev->left_bytes = req->cryptlen;
+	dev->total = req->cryptlen;
+	dev->sg_src = req->src;
+	dev->first = req->src;
+	dev->src_nents = sg_nents(req->src);
+	dev->sg_dst = req->dst;
+	dev->dst_nents = sg_nents(req->dst);
+	dev->aligned = 1;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	rk_ablk_hw_init(dev);
+	err = rk_set_data_start(dev);
+	spin_unlock_irqrestore(&dev->lock, flags);
+	return err;
+}
+
+static void rk_iv_copyback(struct rk_crypto_info *dev)
+{
+	struct skcipher_request *req =
+		skcipher_request_cast(dev->async_req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	u32 ivsize = crypto_skcipher_ivsize(tfm);
+
+	/* Update the IV buffer to contain the next IV for encryption mode. */
+	if (!(ctx->mode & RK_CRYPTO_DEC)) {
+		if (dev->aligned) {
+			memcpy(req->iv, sg_virt(dev->sg_dst) +
+				dev->sg_dst->length - ivsize, ivsize);
+		} else {
+			memcpy(req->iv, dev->addr_vir +
+				dev->count - ivsize, ivsize);
+		}
+	}
+}
+
+static void rk_update_iv(struct rk_crypto_info *dev)
+{
+	struct skcipher_request *req =
+		skcipher_request_cast(dev->async_req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	u32 ivsize = crypto_skcipher_ivsize(tfm);
+	u8 *new_iv = NULL;
+
+	if (ctx->mode & RK_CRYPTO_DEC) {
+		new_iv = ctx->iv;
+	} else {
+		new_iv = page_address(sg_page(dev->sg_dst)) +
+			 dev->sg_dst->offset + dev->sg_dst->length - ivsize;
+	}
+
+	if (ivsize == DES_BLOCK_SIZE)
+		memcpy_toio(dev->reg + RK_CRYPTO_TDES_IV_0, new_iv, ivsize);
+	else if (ivsize == AES_BLOCK_SIZE)
+		memcpy_toio(dev->reg + RK_CRYPTO_AES_IV_0, new_iv, ivsize);
+}
+
+/* return:
+ *	true	some err was occurred
+ *	fault	no err, continue
+ */
+static int rk_ablk_rx(struct rk_crypto_info *dev)
+{
+	int err = 0;
+	struct skcipher_request *req =
+		skcipher_request_cast(dev->async_req);
+
+	dev->unload_data(dev);
+	if (!dev->aligned) {
+		if (!sg_pcopy_from_buffer(req->dst, dev->dst_nents,
+					  dev->addr_vir, dev->count,
+					  dev->total - dev->left_bytes -
+					  dev->count)) {
+			err = -EINVAL;
+			goto out_rx;
+		}
+	}
+	if (dev->left_bytes) {
+		rk_update_iv(dev);
+		if (dev->aligned) {
+			if (sg_is_last(dev->sg_src)) {
+				dev_err(dev->dev, "[%s:%d] Lack of data\n",
+					__func__, __LINE__);
+				err = -ENOMEM;
+				goto out_rx;
+			}
+			dev->sg_src = sg_next(dev->sg_src);
+			dev->sg_dst = sg_next(dev->sg_dst);
+		}
+		err = rk_set_data_start(dev);
+	} else {
+		rk_iv_copyback(dev);
+		/* here show the calculation is over without any err */
+		dev->complete(dev->async_req, 0);
+		tasklet_schedule(&dev->queue_task);
+	}
+out_rx:
+	return err;
+}
+
+static int rk_ablk_init_tfm(struct crypto_skcipher *tfm)
+{
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct rk_crypto_tmp *algt;
+
+	algt = container_of(alg, struct rk_crypto_tmp, alg.skcipher);
+
+	ctx->dev = algt->dev;
+	ctx->dev->align_size = crypto_tfm_alg_alignmask(crypto_skcipher_tfm(tfm)) + 1;
+	ctx->dev->start = rk_ablk_start;
+	ctx->dev->update = rk_ablk_rx;
+	ctx->dev->complete = rk_crypto_complete;
+	ctx->dev->addr_vir = (char *)__get_free_page(GFP_KERNEL);
+
+	return ctx->dev->addr_vir ? ctx->dev->enable_clk(ctx->dev) : -ENOMEM;
+}
+
+static void rk_ablk_exit_tfm(struct crypto_skcipher *tfm)
+{
+	struct rk_cipher_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+	free_page((unsigned long)ctx->dev->addr_vir);
+	ctx->dev->disable_clk(ctx->dev);
+}
+
+struct rk_crypto_tmp rk_ecb_aes_alg = {
+	.type = ALG_TYPE_CIPHER,
+	.alg.skcipher = {
+		.base.cra_name		= "ecb(aes)",
+		.base.cra_driver_name	= "ecb-aes-rk",
+		.base.cra_priority	= 300,
+		.base.cra_flags		= CRYPTO_ALG_ASYNC,
+		.base.cra_blocksize	= AES_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
+		.base.cra_alignmask	= 0x0f,
+		.base.cra_module	= THIS_MODULE,
+
+		.init			= rk_ablk_init_tfm,
+		.exit			= rk_ablk_exit_tfm,
+		.min_keysize		= AES_MIN_KEY_SIZE,
+		.max_keysize		= AES_MAX_KEY_SIZE,
+		.setkey			= rk_aes_setkey,
+		.encrypt		= rk_aes_ecb_encrypt,
+		.decrypt		= rk_aes_ecb_decrypt,
+	}
+};
+
+struct rk_crypto_tmp rk_cbc_aes_alg = {
+	.type = ALG_TYPE_CIPHER,
+	.alg.skcipher = {
+		.base.cra_name		= "cbc(aes)",
+		.base.cra_driver_name	= "cbc-aes-rk",
+		.base.cra_priority	= 300,
+		.base.cra_flags		= CRYPTO_ALG_ASYNC,
+		.base.cra_blocksize	= AES_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
+		.base.cra_alignmask	= 0x0f,
+		.base.cra_module	= THIS_MODULE,
+
+		.init			= rk_ablk_init_tfm,
+		.exit			= rk_ablk_exit_tfm,
+		.min_keysize		= AES_MIN_KEY_SIZE,
+		.max_keysize		= AES_MAX_KEY_SIZE,
+		.ivsize			= AES_BLOCK_SIZE,
+		.setkey			= rk_aes_setkey,
+		.encrypt		= rk_aes_cbc_encrypt,
+		.decrypt		= rk_aes_cbc_decrypt,
+	}
+};
+
+struct rk_crypto_tmp rk_ecb_des_alg = {
+	.type = ALG_TYPE_CIPHER,
+	.alg.skcipher = {
+		.base.cra_name		= "ecb(des)",
+		.base.cra_driver_name	= "ecb-des-rk",
+		.base.cra_priority	= 300,
+		.base.cra_flags		= CRYPTO_ALG_ASYNC,
+		.base.cra_blocksize	= DES_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
+		.base.cra_alignmask	= 0x07,
+		.base.cra_module	= THIS_MODULE,
+
+		.init			= rk_ablk_init_tfm,
+		.exit			= rk_ablk_exit_tfm,
+		.min_keysize		= DES_KEY_SIZE,
+		.max_keysize		= DES_KEY_SIZE,
+		.setkey			= rk_des_setkey,
+		.encrypt		= rk_des_ecb_encrypt,
+		.decrypt		= rk_des_ecb_decrypt,
+	}
+};
+
+struct rk_crypto_tmp rk_cbc_des_alg = {
+	.type = ALG_TYPE_CIPHER,
+	.alg.skcipher = {
+		.base.cra_name		= "cbc(des)",
+		.base.cra_driver_name	= "cbc-des-rk",
+		.base.cra_priority	= 300,
+		.base.cra_flags		= CRYPTO_ALG_ASYNC,
+		.base.cra_blocksize	= DES_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
+		.base.cra_alignmask	= 0x07,
+		.base.cra_module	= THIS_MODULE,
+
+		.init			= rk_ablk_init_tfm,
+		.exit			= rk_ablk_exit_tfm,
+		.min_keysize		= DES_KEY_SIZE,
+		.max_keysize		= DES_KEY_SIZE,
+		.ivsize			= DES_BLOCK_SIZE,
+		.setkey			= rk_des_setkey,
+		.encrypt		= rk_des_cbc_encrypt,
+		.decrypt		= rk_des_cbc_decrypt,
+	}
+};
+
+struct rk_crypto_tmp rk_ecb_des3_ede_alg = {
+	.type = ALG_TYPE_CIPHER,
+	.alg.skcipher = {
+		.base.cra_name		= "ecb(des3_ede)",
+		.base.cra_driver_name	= "ecb-des3-ede-rk",
+		.base.cra_priority	= 300,
+		.base.cra_flags		= CRYPTO_ALG_ASYNC,
+		.base.cra_blocksize	= DES_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
+		.base.cra_alignmask	= 0x07,
+		.base.cra_module	= THIS_MODULE,
+
+		.init			= rk_ablk_init_tfm,
+		.exit			= rk_ablk_exit_tfm,
+		.min_keysize		= DES3_EDE_KEY_SIZE,
+		.max_keysize		= DES3_EDE_KEY_SIZE,
+		.ivsize			= DES_BLOCK_SIZE,
+		.setkey			= rk_tdes_setkey,
+		.encrypt		= rk_des3_ede_ecb_encrypt,
+		.decrypt		= rk_des3_ede_ecb_decrypt,
+	}
+};
+
+struct rk_crypto_tmp rk_cbc_des3_ede_alg = {
+	.type = ALG_TYPE_CIPHER,
+	.alg.skcipher = {
+		.base.cra_name		= "cbc(des3_ede)",
+		.base.cra_driver_name	= "cbc-des3-ede-rk",
+		.base.cra_priority	= 300,
+		.base.cra_flags		= CRYPTO_ALG_ASYNC,
+		.base.cra_blocksize	= DES_BLOCK_SIZE,
+		.base.cra_ctxsize	= sizeof(struct rk_cipher_ctx),
+		.base.cra_alignmask	= 0x07,
+		.base.cra_module	= THIS_MODULE,
+
+		.init			= rk_ablk_init_tfm,
+		.exit			= rk_ablk_exit_tfm,
+		.min_keysize		= DES3_EDE_KEY_SIZE,
+		.max_keysize		= DES3_EDE_KEY_SIZE,
+		.ivsize			= DES_BLOCK_SIZE,
+		.setkey			= rk_tdes_setkey,
+		.encrypt		= rk_des3_ede_cbc_encrypt,
+		.decrypt		= rk_des3_ede_cbc_decrypt,
+	}
+};