path: root/target/linux/apm821xx/patches-4.14/022-0003-crypto-crypto4xx-convert-to-skcipher.patch

From ce05ffe10457bda487fa049016a6ba79934bdece Mon Sep 17 00:00:00 2001
From: Christian Lamparter <chunkeey@gmail.com>
Date: Thu, 19 Apr 2018 18:41:52 +0200
Subject: [PATCH 3/8] crypto: crypto4xx - convert to skcipher

The ablkcipher APIs have been effectively deprecated since [1].
This patch converts the crypto4xx driver to the new skcipher APIs.

[1] <https://www.spinics.net/lists/linux-crypto/msg18133.html>

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/amcc/crypto4xx_alg.c  |  60 ++++---
 drivers/crypto/amcc/crypto4xx_core.c | 255 +++++++++++++--------------
 drivers/crypto/amcc/crypto4xx_core.h |  25 +--
 3 files changed, 163 insertions(+), 177 deletions(-)

--- a/drivers/crypto/amcc/crypto4xx_alg.c
+++ b/drivers/crypto/amcc/crypto4xx_alg.c
@@ -31,6 +31,7 @@
 #include <crypto/gcm.h>
 #include <crypto/sha.h>
 #include <crypto/ctr.h>
+#include <crypto/skcipher.h>
 #include "crypto4xx_reg_def.h"
 #include "crypto4xx_core.h"
 #include "crypto4xx_sa.h"
@@ -74,36 +75,37 @@ static void set_dynamic_sa_command_1(str
 	sa->sa_command_1.bf.copy_hdr = cp_hdr;
 }
 
-static inline int crypto4xx_crypt(struct ablkcipher_request *req,
+static inline int crypto4xx_crypt(struct skcipher_request *req,
 				  const unsigned int ivlen, bool decrypt)
 {
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
 	__le32 iv[ivlen];
 
 	if (ivlen)
-		crypto4xx_memcpy_to_le32(iv, req->info, ivlen);
+		crypto4xx_memcpy_to_le32(iv, req->iv, ivlen);
 
 	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
-		req->nbytes, iv, ivlen, decrypt ? ctx->sa_in : ctx->sa_out,
+		req->cryptlen, iv, ivlen, decrypt ? ctx->sa_in : ctx->sa_out,
 		ctx->sa_len, 0);
 }
 
-int crypto4xx_encrypt_noiv(struct ablkcipher_request *req)
+int crypto4xx_encrypt_noiv(struct skcipher_request *req)
 {
 	return crypto4xx_crypt(req, 0, false);
 }
 
-int crypto4xx_encrypt_iv(struct ablkcipher_request *req)
+int crypto4xx_encrypt_iv(struct skcipher_request *req)
 {
 	return crypto4xx_crypt(req, AES_IV_SIZE, false);
 }
 
-int crypto4xx_decrypt_noiv(struct ablkcipher_request *req)
+int crypto4xx_decrypt_noiv(struct skcipher_request *req)
 {
 	return crypto4xx_crypt(req, 0, true);
 }
 
-int crypto4xx_decrypt_iv(struct ablkcipher_request *req)
+int crypto4xx_decrypt_iv(struct skcipher_request *req)
 {
 	return crypto4xx_crypt(req, AES_IV_SIZE, true);
 }
@@ -111,20 +113,19 @@ int crypto4xx_decrypt_iv(struct ablkciph
 /**
  * AES Functions
  */
-static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher,
+static int crypto4xx_setkey_aes(struct crypto_skcipher *cipher,
 				const u8 *key,
 				unsigned int keylen,
 				unsigned char cm,
 				u8 fb)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
 	struct dynamic_sa_ctl *sa;
 	int    rc;
 
 	if (keylen != AES_KEYSIZE_256 &&
 		keylen != AES_KEYSIZE_192 && keylen != AES_KEYSIZE_128) {
-		crypto_ablkcipher_set_flags(cipher,
+		crypto_skcipher_set_flags(cipher,
 				CRYPTO_TFM_RES_BAD_KEY_LEN);
 		return -EINVAL;
 	}
@@ -164,39 +165,38 @@ static int crypto4xx_setkey_aes(struct c
 	return 0;
 }
 
-int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_cbc(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen)
 {
 	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_CBC,
 				    CRYPTO_FEEDBACK_MODE_NO_FB);
 }
 
-int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_cfb(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen)
 {
 	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_CFB,
 				    CRYPTO_FEEDBACK_MODE_128BIT_CFB);
 }
 
-int crypto4xx_setkey_aes_ecb(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_ecb(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen)
 {
 	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_ECB,
 				    CRYPTO_FEEDBACK_MODE_NO_FB);
 }
 
-int crypto4xx_setkey_aes_ofb(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_ofb(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen)
 {
 	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_OFB,
 				    CRYPTO_FEEDBACK_MODE_64BIT_OFB);
 }
 
-int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_rfc3686(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
 	int rc;
 
 	rc = crypto4xx_setkey_aes(cipher, key, keylen - CTR_RFC3686_NONCE_SIZE,
@@ -210,31 +210,33 @@ int crypto4xx_setkey_rfc3686(struct cryp
 	return 0;
 }
 
-int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req)
+int crypto4xx_rfc3686_encrypt(struct skcipher_request *req)
 {
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
 	__le32 iv[AES_IV_SIZE / 4] = {
 		ctx->iv_nonce,
-		cpu_to_le32p((u32 *) req->info),
-		cpu_to_le32p((u32 *) (req->info + 4)),
+		cpu_to_le32p((u32 *) req->iv),
+		cpu_to_le32p((u32 *) (req->iv + 4)),
 		cpu_to_le32(1) };
 
 	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
-				  req->nbytes, iv, AES_IV_SIZE,
+				  req->cryptlen, iv, AES_IV_SIZE,
 				  ctx->sa_out, ctx->sa_len, 0);
 }
 
-int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req)
+int crypto4xx_rfc3686_decrypt(struct skcipher_request *req)
 {
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	struct crypto_skcipher *cipher = crypto_skcipher_reqtfm(req);
+	struct crypto4xx_ctx *ctx = crypto_skcipher_ctx(cipher);
 	__le32 iv[AES_IV_SIZE / 4] = {
 		ctx->iv_nonce,
-		cpu_to_le32p((u32 *) req->info),
-		cpu_to_le32p((u32 *) (req->info + 4)),
+		cpu_to_le32p((u32 *) req->iv),
+		cpu_to_le32p((u32 *) (req->iv + 4)),
 		cpu_to_le32(1) };
 
 	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
-				  req->nbytes, iv, AES_IV_SIZE,
+				  req->cryptlen, iv, AES_IV_SIZE,
 				  ctx->sa_out, ctx->sa_len, 0);
 }
 
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -41,6 +41,7 @@
 #include <crypto/gcm.h>
 #include <crypto/sha.h>
 #include <crypto/scatterwalk.h>
+#include <crypto/skcipher.h>
 #include <crypto/internal/aead.h>
 #include <crypto/internal/skcipher.h>
 #include "crypto4xx_reg_def.h"
@@ -526,21 +527,19 @@ static void crypto4xx_ret_sg_desc(struct
 	}
 }
 
-static void crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,
+static void crypto4xx_cipher_done(struct crypto4xx_device *dev,
 				     struct pd_uinfo *pd_uinfo,
 				     struct ce_pd *pd)
 {
-	struct crypto4xx_ctx *ctx;
-	struct ablkcipher_request *ablk_req;
+	struct skcipher_request *req;
 	struct scatterlist *dst;
 	dma_addr_t addr;
 
-	ablk_req = ablkcipher_request_cast(pd_uinfo->async_req);
-	ctx  = crypto_tfm_ctx(ablk_req->base.tfm);
+	req = skcipher_request_cast(pd_uinfo->async_req);
 
 	if (pd_uinfo->using_sd) {
-		crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo, ablk_req->nbytes,
-					  ablk_req->dst);
+		crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,
+					  req->cryptlen, req->dst);
 	} else {
 		dst = pd_uinfo->dest_va;
 		addr = dma_map_page(dev->core_dev->device, sg_page(dst),
@@ -549,8 +548,8 @@ static void crypto4xx_ablkcipher_done(st
 	crypto4xx_ret_sg_desc(dev, pd_uinfo);
 
 	if (pd_uinfo->state & PD_ENTRY_BUSY)
-		ablkcipher_request_complete(ablk_req, -EINPROGRESS);
-	ablkcipher_request_complete(ablk_req, 0);
+		skcipher_request_complete(req, -EINPROGRESS);
+	skcipher_request_complete(req, 0);
 }
 
 static void crypto4xx_ahash_done(struct crypto4xx_device *dev,
@@ -641,8 +640,8 @@ static void crypto4xx_pd_done(struct cry
 	struct pd_uinfo *pd_uinfo = &dev->pdr_uinfo[idx];
 
 	switch (crypto_tfm_alg_type(pd_uinfo->async_req->tfm)) {
-	case CRYPTO_ALG_TYPE_ABLKCIPHER:
-		crypto4xx_ablkcipher_done(dev, pd_uinfo, pd);
+	case CRYPTO_ALG_TYPE_SKCIPHER:
+		crypto4xx_cipher_done(dev, pd_uinfo, pd);
 		break;
 	case CRYPTO_ALG_TYPE_AEAD:
 		crypto4xx_aead_done(dev, pd_uinfo, pd);
@@ -936,15 +935,14 @@ static void crypto4xx_ctx_init(struct cr
 	ctx->sa_len = 0;
 }
 
-static int crypto4xx_ablk_init(struct crypto_tfm *tfm)
+static int crypto4xx_sk_init(struct crypto_skcipher *sk)
 {
-	struct crypto_alg *alg = tfm->__crt_alg;
+	struct skcipher_alg *alg = crypto_skcipher_alg(sk);
 	struct crypto4xx_alg *amcc_alg;
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct crypto4xx_ctx *ctx =  crypto_skcipher_ctx(sk);
 
 	amcc_alg = container_of(alg, struct crypto4xx_alg, alg.u.cipher);
 	crypto4xx_ctx_init(amcc_alg, ctx);
-	tfm->crt_ablkcipher.reqsize = sizeof(struct crypto4xx_ctx);
 	return 0;
 }
 
@@ -953,9 +951,11 @@ static void crypto4xx_common_exit(struct
 	crypto4xx_free_sa(ctx);
 }
 
-static void crypto4xx_ablk_exit(struct crypto_tfm *tfm)
+static void crypto4xx_sk_exit(struct crypto_skcipher *sk)
 {
-	crypto4xx_common_exit(crypto_tfm_ctx(tfm));
+	struct crypto4xx_ctx *ctx =  crypto_skcipher_ctx(sk);
+
+	crypto4xx_common_exit(ctx);
 }
 
 static int crypto4xx_aead_init(struct crypto_aead *tfm)
@@ -1012,7 +1012,7 @@ static int crypto4xx_register_alg(struct
 			break;
 
 		default:
-			rc = crypto_register_alg(&alg->alg.u.cipher);
+			rc = crypto_register_skcipher(&alg->alg.u.cipher);
 			break;
 		}
 
@@ -1041,7 +1041,7 @@ static void crypto4xx_unregister_alg(str
 			break;
 
 		default:
-			crypto_unregister_alg(&alg->alg.u.cipher);
+			crypto_unregister_skcipher(&alg->alg.u.cipher);
 		}
 		kfree(alg);
 	}
@@ -1103,126 +1103,109 @@ static irqreturn_t crypto4xx_ce_interrup
  */
 static struct crypto4xx_alg_common crypto4xx_alg[] = {
 	/* Crypto AES modes */
-	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
-		.cra_name 	= "cbc(aes)",
-		.cra_driver_name = "cbc-aes-ppc4xx",
-		.cra_priority 	= CRYPTO4XX_CRYPTO_PRIORITY,
-		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-				  CRYPTO_ALG_ASYNC |
-				  CRYPTO_ALG_KERN_DRIVER_ONLY,
-		.cra_blocksize 	= AES_BLOCK_SIZE,
-		.cra_ctxsize 	= sizeof(struct crypto4xx_ctx),
-		.cra_type 	= &crypto_ablkcipher_type,
-		.cra_init	= crypto4xx_ablk_init,
-		.cra_exit	= crypto4xx_ablk_exit,
-		.cra_module 	= THIS_MODULE,
-		.cra_u 		= {
-			.ablkcipher = {
-				.min_keysize 	= AES_MIN_KEY_SIZE,
-				.max_keysize 	= AES_MAX_KEY_SIZE,
-				.ivsize		= AES_IV_SIZE,
-				.setkey 	= crypto4xx_setkey_aes_cbc,
-				.encrypt	= crypto4xx_encrypt_iv,
-				.decrypt	= crypto4xx_decrypt_iv,
-			}
-		}
-	}},
-	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
-		.cra_name	= "cfb(aes)",
-		.cra_driver_name = "cfb-aes-ppc4xx",
-		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
-		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-				  CRYPTO_ALG_ASYNC |
-				  CRYPTO_ALG_KERN_DRIVER_ONLY,
-		.cra_blocksize	= AES_BLOCK_SIZE,
-		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
-		.cra_type	= &crypto_ablkcipher_type,
-		.cra_init	= crypto4xx_ablk_init,
-		.cra_exit	= crypto4xx_ablk_exit,
-		.cra_module	= THIS_MODULE,
-		.cra_u		= {
-			.ablkcipher = {
-				.min_keysize	= AES_MIN_KEY_SIZE,
-				.max_keysize	= AES_MAX_KEY_SIZE,
-				.ivsize		= AES_IV_SIZE,
-				.setkey		= crypto4xx_setkey_aes_cfb,
-				.encrypt	= crypto4xx_encrypt_iv,
-				.decrypt	= crypto4xx_decrypt_iv,
-			}
-		}
+	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {
+		.base = {
+			.cra_name = "cbc(aes)",
+			.cra_driver_name = "cbc-aes-ppc4xx",
+			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+				CRYPTO_ALG_ASYNC |
+				CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
+			.cra_module = THIS_MODULE,
+		},
+		.min_keysize = AES_MIN_KEY_SIZE,
+		.max_keysize = AES_MAX_KEY_SIZE,
+		.ivsize	= AES_IV_SIZE,
+		.setkey = crypto4xx_setkey_aes_cbc,
+		.encrypt = crypto4xx_encrypt_iv,
+		.decrypt = crypto4xx_decrypt_iv,
+		.init = crypto4xx_sk_init,
+		.exit = crypto4xx_sk_exit,
 	} },
-	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
-		.cra_name	= "rfc3686(ctr(aes))",
-		.cra_driver_name = "rfc3686-ctr-aes-ppc4xx",
-		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
-		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-				  CRYPTO_ALG_ASYNC |
-				  CRYPTO_ALG_KERN_DRIVER_ONLY,
-		.cra_blocksize	= AES_BLOCK_SIZE,
-		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
-		.cra_type	= &crypto_ablkcipher_type,
-		.cra_init	= crypto4xx_ablk_init,
-		.cra_exit	= crypto4xx_ablk_exit,
-		.cra_module	= THIS_MODULE,
-		.cra_u		= {
-			.ablkcipher = {
-				.min_keysize	= AES_MIN_KEY_SIZE +
-						  CTR_RFC3686_NONCE_SIZE,
-				.max_keysize	= AES_MAX_KEY_SIZE +
-						  CTR_RFC3686_NONCE_SIZE,
-				.ivsize		= CTR_RFC3686_IV_SIZE,
-				.setkey		= crypto4xx_setkey_rfc3686,
-				.encrypt	= crypto4xx_rfc3686_encrypt,
-				.decrypt	= crypto4xx_rfc3686_decrypt,
-			}
-		}
+	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {
+		.base = {
+			.cra_name = "cfb(aes)",
+			.cra_driver_name = "cfb-aes-ppc4xx",
+			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+				CRYPTO_ALG_ASYNC |
+				CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
+			.cra_module = THIS_MODULE,
+		},
+		.min_keysize = AES_MIN_KEY_SIZE,
+		.max_keysize = AES_MAX_KEY_SIZE,
+		.ivsize	= AES_IV_SIZE,
+		.setkey	= crypto4xx_setkey_aes_cfb,
+		.encrypt = crypto4xx_encrypt_iv,
+		.decrypt = crypto4xx_decrypt_iv,
+		.init = crypto4xx_sk_init,
+		.exit = crypto4xx_sk_exit,
 	} },
-	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
-		.cra_name	= "ecb(aes)",
-		.cra_driver_name = "ecb-aes-ppc4xx",
-		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
-		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-				  CRYPTO_ALG_ASYNC |
-				  CRYPTO_ALG_KERN_DRIVER_ONLY,
-		.cra_blocksize	= AES_BLOCK_SIZE,
-		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
-		.cra_type	= &crypto_ablkcipher_type,
-		.cra_init	= crypto4xx_ablk_init,
-		.cra_exit	= crypto4xx_ablk_exit,
-		.cra_module	= THIS_MODULE,
-		.cra_u		= {
-			.ablkcipher = {
-				.min_keysize	= AES_MIN_KEY_SIZE,
-				.max_keysize	= AES_MAX_KEY_SIZE,
-				.setkey		= crypto4xx_setkey_aes_ecb,
-				.encrypt	= crypto4xx_encrypt_noiv,
-				.decrypt	= crypto4xx_decrypt_noiv,
-			}
-		}
+	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {
+		.base = {
+			.cra_name = "rfc3686(ctr(aes))",
+			.cra_driver_name = "rfc3686-ctr-aes-ppc4xx",
+			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+				CRYPTO_ALG_ASYNC |
+				CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
+			.cra_module = THIS_MODULE,
+		},
+		.min_keysize = AES_MIN_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,
+		.max_keysize = AES_MAX_KEY_SIZE + CTR_RFC3686_NONCE_SIZE,
+		.ivsize	= CTR_RFC3686_IV_SIZE,
+		.setkey = crypto4xx_setkey_rfc3686,
+		.encrypt = crypto4xx_rfc3686_encrypt,
+		.decrypt = crypto4xx_rfc3686_decrypt,
+		.init = crypto4xx_sk_init,
+		.exit = crypto4xx_sk_exit,
 	} },
-	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
-		.cra_name	= "ofb(aes)",
-		.cra_driver_name = "ofb-aes-ppc4xx",
-		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
-		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-				  CRYPTO_ALG_ASYNC |
-				  CRYPTO_ALG_KERN_DRIVER_ONLY,
-		.cra_blocksize	= AES_BLOCK_SIZE,
-		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
-		.cra_type	= &crypto_ablkcipher_type,
-		.cra_init	= crypto4xx_ablk_init,
-		.cra_exit	= crypto4xx_ablk_exit,
-		.cra_module	= THIS_MODULE,
-		.cra_u		= {
-			.ablkcipher = {
-				.min_keysize	= AES_MIN_KEY_SIZE,
-				.max_keysize	= AES_MAX_KEY_SIZE,
-				.ivsize		= AES_IV_SIZE,
-				.setkey		= crypto4xx_setkey_aes_ofb,
-				.encrypt	= crypto4xx_encrypt_iv,
-				.decrypt	= crypto4xx_decrypt_iv,
-			}
-		}
+	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {
+		.base = {
+			.cra_name = "ecb(aes)",
+			.cra_driver_name = "ecb-aes-ppc4xx",
+			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+				CRYPTO_ALG_ASYNC |
+				CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
+			.cra_module = THIS_MODULE,
+		},
+		.min_keysize = AES_MIN_KEY_SIZE,
+		.max_keysize = AES_MAX_KEY_SIZE,
+		.setkey	= crypto4xx_setkey_aes_ecb,
+		.encrypt = crypto4xx_encrypt_noiv,
+		.decrypt = crypto4xx_decrypt_noiv,
+		.init = crypto4xx_sk_init,
+		.exit = crypto4xx_sk_exit,
+	} },
+	{ .type = CRYPTO_ALG_TYPE_SKCIPHER, .u.cipher = {
+		.base = {
+			.cra_name = "ofb(aes)",
+			.cra_driver_name = "ofb-aes-ppc4xx",
+			.cra_priority = CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags = CRYPTO_ALG_TYPE_SKCIPHER |
+				CRYPTO_ALG_ASYNC |
+				CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize = AES_BLOCK_SIZE,
+			.cra_ctxsize = sizeof(struct crypto4xx_ctx),
+			.cra_module = THIS_MODULE,
+		},
+		.min_keysize = AES_MIN_KEY_SIZE,
+		.max_keysize = AES_MAX_KEY_SIZE,
+		.ivsize	= AES_IV_SIZE,
+		.setkey	= crypto4xx_setkey_aes_ofb,
+		.encrypt = crypto4xx_encrypt_iv,
+		.decrypt = crypto4xx_decrypt_iv,
+		.init = crypto4xx_sk_init,
+		.exit = crypto4xx_sk_exit,
 	} },
 
 	/* AEAD */
--- a/drivers/crypto/amcc/crypto4xx_core.h
+++ b/drivers/crypto/amcc/crypto4xx_core.h
@@ -25,6 +25,7 @@
 #include <linux/ratelimit.h>
 #include <crypto/internal/hash.h>
 #include <crypto/internal/aead.h>
+#include <crypto/internal/skcipher.h>
 #include "crypto4xx_reg_def.h"
 #include "crypto4xx_sa.h"
 
@@ -134,7 +135,7 @@ struct crypto4xx_ctx {
 struct crypto4xx_alg_common {
 	u32 type;
 	union {
-		struct crypto_alg cipher;
+		struct skcipher_alg cipher;
 		struct ahash_alg hash;
 		struct aead_alg aead;
 	} u;
@@ -158,22 +159,22 @@ int crypto4xx_build_pd(struct crypto_asy
 		       const struct dynamic_sa_ctl *sa,
 		       const unsigned int sa_len,
 		       const unsigned int assoclen);
-int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_cbc(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen);
-int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_cfb(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen);
-int crypto4xx_setkey_aes_ecb(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_ecb(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen);
-int crypto4xx_setkey_aes_ofb(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_aes_ofb(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen);
-int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher,
+int crypto4xx_setkey_rfc3686(struct crypto_skcipher *cipher,
 			     const u8 *key, unsigned int keylen);
-int crypto4xx_encrypt_iv(struct ablkcipher_request *req);
-int crypto4xx_decrypt_iv(struct ablkcipher_request *req);
-int crypto4xx_encrypt_noiv(struct ablkcipher_request *req);
-int crypto4xx_decrypt_noiv(struct ablkcipher_request *req);
-int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req);
-int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req);
+int crypto4xx_encrypt_iv(struct skcipher_request *req);
+int crypto4xx_decrypt_iv(struct skcipher_request *req);
+int crypto4xx_encrypt_noiv(struct skcipher_request *req);
+int crypto4xx_decrypt_noiv(struct skcipher_request *req);
+int crypto4xx_rfc3686_encrypt(struct skcipher_request *req);
+int crypto4xx_rfc3686_decrypt(struct skcipher_request *req);
 int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm);
 int crypto4xx_hash_digest(struct ahash_request *req);
 int crypto4xx_hash_final(struct ahash_request *req);