crypto: chelsio - 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: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 164 insertions, 170 deletions

diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index 38ee38b37ae6..1b4a5664e604 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -93,7 +93,7 @@ static u32 round_constant[11] = {
 	0x1B000000, 0x36000000, 0x6C000000
 };
 
-static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
+static int chcr_handle_cipher_resp(struct skcipher_request *req,
 				   unsigned char *input, int err);
 
 static inline  struct chcr_aead_ctx *AEAD_CTX(struct chcr_context *ctx)
@@ -568,11 +568,11 @@ static void  ulptx_walk_add_sg(struct ulptx_walk *walk,
 	}
 }
 
-static inline int get_cryptoalg_subtype(struct crypto_tfm *tfm)
+static inline int get_cryptoalg_subtype(struct crypto_skcipher *tfm)
 {
-	struct crypto_alg *alg = tfm->__crt_alg;
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
 	struct chcr_alg_template *chcr_crypto_alg =
-		container_of(alg, struct chcr_alg_template, alg.crypto);
+		container_of(alg, struct chcr_alg_template, alg.skcipher);
 
 	return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK;
 }
@@ -757,14 +757,14 @@ static inline void create_wreq(struct chcr_context *ctx,
  */
 static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(wrparam->req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(wrparam->req);
 	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct sk_buff *skb = NULL;
 	struct chcr_wr *chcr_req;
 	struct cpl_rx_phys_dsgl *phys_cpl;
 	struct ulptx_sgl *ulptx;
-	struct chcr_blkcipher_req_ctx *reqctx =
-		ablkcipher_request_ctx(wrparam->req);
+	struct chcr_skcipher_req_ctx *reqctx =
+		skcipher_request_ctx(wrparam->req);
 	unsigned int temp = 0, transhdr_len, dst_size;
 	int error;
 	int nents;
@@ -807,9 +807,9 @@ static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
 
 	chcr_req->key_ctx.ctx_hdr = ablkctx->key_ctx_hdr;
 	if ((reqctx->op == CHCR_DECRYPT_OP) &&
-	    (!(get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
+	    (!(get_cryptoalg_subtype(tfm) ==
 	       CRYPTO_ALG_SUB_TYPE_CTR)) &&
-	    (!(get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
+	    (!(get_cryptoalg_subtype(tfm) ==
 	       CRYPTO_ALG_SUB_TYPE_CTR_RFC3686))) {
 		generate_copy_rrkey(ablkctx, &chcr_req->key_ctx);
 	} else {
@@ -843,7 +843,7 @@ static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
 	if (reqctx->op && (ablkctx->ciph_mode ==
 			   CHCR_SCMD_CIPHER_MODE_AES_CBC))
 		sg_pcopy_to_buffer(wrparam->req->src,
-			sg_nents(wrparam->req->src), wrparam->req->info, 16,
+			sg_nents(wrparam->req->src), wrparam->req->iv, 16,
 			reqctx->processed + wrparam->bytes - AES_BLOCK_SIZE);
 
 	return skb;
@@ -866,11 +866,11 @@ static inline int chcr_keyctx_ck_size(unsigned int keylen)
 
 	return ck_size;
 }
-static int chcr_cipher_fallback_setkey(struct crypto_ablkcipher *cipher,
+static int chcr_cipher_fallback_setkey(struct crypto_skcipher *cipher,
 				       const u8 *key,
 				       unsigned int keylen)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
 	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
 	int err = 0;
 
@@ -886,7 +886,7 @@ static int chcr_cipher_fallback_setkey(struct crypto_ablkcipher *cipher,
 	return err;
 }
 
-static int chcr_aes_cbc_setkey(struct crypto_ablkcipher *cipher,
+static int chcr_aes_cbc_setkey(struct crypto_skcipher *cipher,
 			       const u8 *key,
 			       unsigned int keylen)
 {
@@ -912,13 +912,13 @@ static int chcr_aes_cbc_setkey(struct crypto_ablkcipher *cipher,
 	ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_CBC;
 	return 0;
 badkey_err:
-	crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+	crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 	ablkctx->enckey_len = 0;
 
 	return err;
 }
 
-static int chcr_aes_ctr_setkey(struct crypto_ablkcipher *cipher,
+static int chcr_aes_ctr_setkey(struct crypto_skcipher *cipher,
 				   const u8 *key,
 				   unsigned int keylen)
 {
@@ -943,13 +943,13 @@ static int chcr_aes_ctr_setkey(struct crypto_ablkcipher *cipher,
 
 	return 0;
 badkey_err:
-	crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+	crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 	ablkctx->enckey_len = 0;
 
 	return err;
 }
 
-static int chcr_aes_rfc3686_setkey(struct crypto_ablkcipher *cipher,
+static int chcr_aes_rfc3686_setkey(struct crypto_skcipher *cipher,
 				   const u8 *key,
 				   unsigned int keylen)
 {
@@ -981,7 +981,7 @@ static int chcr_aes_rfc3686_setkey(struct crypto_ablkcipher *cipher,
 
 	return 0;
 badkey_err:
-	crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+	crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 	ablkctx->enckey_len = 0;
 
 	return err;
@@ -1017,12 +1017,12 @@ static unsigned int adjust_ctr_overflow(u8 *iv, u32 bytes)
 	return bytes;
 }
 
-static int chcr_update_tweak(struct ablkcipher_request *req, u8 *iv,
+static int chcr_update_tweak(struct skcipher_request *req, u8 *iv,
 			     u32 isfinal)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
 	struct crypto_aes_ctx aes;
 	int ret, i;
 	u8 *key;
@@ -1051,16 +1051,16 @@ static int chcr_update_tweak(struct ablkcipher_request *req, u8 *iv,
 	return 0;
 }
 
-static int chcr_update_cipher_iv(struct ablkcipher_request *req,
+static int chcr_update_cipher_iv(struct skcipher_request *req,
 				   struct cpl_fw6_pld *fw6_pld, u8 *iv)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
-	int subtype = get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm));
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	int subtype = get_cryptoalg_subtype(tfm);
 	int ret = 0;
 
 	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR)
-		ctr_add_iv(iv, req->info, (reqctx->processed /
+		ctr_add_iv(iv, req->iv, (reqctx->processed /
 			   AES_BLOCK_SIZE));
 	else if (subtype == CRYPTO_ALG_SUB_TYPE_CTR_RFC3686)
 		*(__be32 *)(reqctx->iv + CTR_RFC3686_NONCE_SIZE +
@@ -1071,7 +1071,7 @@ static int chcr_update_cipher_iv(struct ablkcipher_request *req,
 	else if (subtype == CRYPTO_ALG_SUB_TYPE_CBC) {
 		if (reqctx->op)
 			/*Updated before sending last WR*/
-			memcpy(iv, req->info, AES_BLOCK_SIZE);
+			memcpy(iv, req->iv, AES_BLOCK_SIZE);
 		else
 			memcpy(iv, &fw6_pld->data[2], AES_BLOCK_SIZE);
 	}
@@ -1085,16 +1085,16 @@ static int chcr_update_cipher_iv(struct ablkcipher_request *req,
  * for subsequent update requests
  */
 
-static int chcr_final_cipher_iv(struct ablkcipher_request *req,
+static int chcr_final_cipher_iv(struct skcipher_request *req,
 				   struct cpl_fw6_pld *fw6_pld, u8 *iv)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
-	int subtype = get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm));
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	int subtype = get_cryptoalg_subtype(tfm);
 	int ret = 0;
 
 	if (subtype == CRYPTO_ALG_SUB_TYPE_CTR)
-		ctr_add_iv(iv, req->info, DIV_ROUND_UP(reqctx->processed,
+		ctr_add_iv(iv, req->iv, DIV_ROUND_UP(reqctx->processed,
 						       AES_BLOCK_SIZE));
 	else if (subtype == CRYPTO_ALG_SUB_TYPE_XTS)
 		ret = chcr_update_tweak(req, iv, 1);
@@ -1108,25 +1108,25 @@ static int chcr_final_cipher_iv(struct ablkcipher_request *req,
 
 }
 
-static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
+static int chcr_handle_cipher_resp(struct skcipher_request *req,
 				   unsigned char *input, int err)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
 	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct sk_buff *skb;
 	struct cpl_fw6_pld *fw6_pld = (struct cpl_fw6_pld *)input;
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
 	struct  cipher_wr_param wrparam;
 	struct chcr_dev *dev = c_ctx(tfm)->dev;
 	int bytes;
 
 	if (err)
 		goto unmap;
-	if (req->nbytes == reqctx->processed) {
+	if (req->cryptlen == reqctx->processed) {
 		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
 				      req);
-		err = chcr_final_cipher_iv(req, fw6_pld, req->info);
+		err = chcr_final_cipher_iv(req, fw6_pld, req->iv);
 		goto complete;
 	}
 
@@ -1134,13 +1134,13 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
 		bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 0,
 					  CIP_SPACE_LEFT(ablkctx->enckey_len),
 					  reqctx->src_ofst, reqctx->dst_ofst);
-		if ((bytes + reqctx->processed) >= req->nbytes)
-			bytes  = req->nbytes - reqctx->processed;
+		if ((bytes + reqctx->processed) >= req->cryptlen)
+			bytes  = req->cryptlen - reqctx->processed;
 		else
 			bytes = rounddown(bytes, 16);
 	} else {
 		/*CTR mode counter overfloa*/
-		bytes  = req->nbytes - reqctx->processed;
+		bytes  = req->cryptlen - reqctx->processed;
 	}
 	err = chcr_update_cipher_iv(req, fw6_pld, reqctx->iv);
 	if (err)
@@ -1153,13 +1153,13 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
 				     req->base.flags,
 				     req->src,
 				     req->dst,
-				     req->nbytes,
-				     req->info,
+				     req->cryptlen,
+				     req->iv,
 				     reqctx->op);
 		goto complete;
 	}
 
-	if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
+	if (get_cryptoalg_subtype(tfm) ==
 	    CRYPTO_ALG_SUB_TYPE_CTR)
 		bytes = adjust_ctr_overflow(reqctx->iv, bytes);
 	wrparam.qid = u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx];
@@ -1185,33 +1185,33 @@ complete:
 	return err;
 }
 
-static int process_cipher(struct ablkcipher_request *req,
+static int process_cipher(struct skcipher_request *req,
 				  unsigned short qid,
 				  struct sk_buff **skb,
 				  unsigned short op_type)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	unsigned int ivsize = crypto_ablkcipher_ivsize(tfm);
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	unsigned int ivsize = crypto_skcipher_ivsize(tfm);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
 	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct	cipher_wr_param wrparam;
 	int bytes, err = -EINVAL;
 
 	reqctx->processed = 0;
-	if (!req->info)
+	if (!req->iv)
 		goto error;
 	if ((ablkctx->enckey_len == 0) || (ivsize > AES_BLOCK_SIZE) ||
-	    (req->nbytes == 0) ||
-	    (req->nbytes % crypto_ablkcipher_blocksize(tfm))) {
+	    (req->cryptlen == 0) ||
+	    (req->cryptlen % crypto_skcipher_blocksize(tfm))) {
 		pr_err("AES: Invalid value of Key Len %d nbytes %d IV Len %d\n",
-		       ablkctx->enckey_len, req->nbytes, ivsize);
+		       ablkctx->enckey_len, req->cryptlen, ivsize);
 		goto error;
 	}
 
 	err = chcr_cipher_dma_map(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
 	if (err)
 		goto error;
-	if (req->nbytes < (SGE_MAX_WR_LEN - (sizeof(struct chcr_wr) +
+	if (req->cryptlen < (SGE_MAX_WR_LEN - (sizeof(struct chcr_wr) +
 					    AES_MIN_KEY_SIZE +
 					    sizeof(struct cpl_rx_phys_dsgl) +
 					/*Min dsgl size*/
@@ -1219,14 +1219,14 @@ static int process_cipher(struct ablkcipher_request *req,
 		/* Can be sent as Imm*/
 		unsigned int dnents = 0, transhdr_len, phys_dsgl, kctx_len;
 
-		dnents = sg_nents_xlen(req->dst, req->nbytes,
+		dnents = sg_nents_xlen(req->dst, req->cryptlen,
 				       CHCR_DST_SG_SIZE, 0);
 		phys_dsgl = get_space_for_phys_dsgl(dnents);
 		kctx_len = roundup(ablkctx->enckey_len, 16);
 		transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl);
-		reqctx->imm = (transhdr_len + IV + req->nbytes) <=
+		reqctx->imm = (transhdr_len + IV + req->cryptlen) <=
 			SGE_MAX_WR_LEN;
-		bytes = IV + req->nbytes;
+		bytes = IV + req->cryptlen;
 
 	} else {
 		reqctx->imm = 0;
@@ -1236,21 +1236,21 @@ static int process_cipher(struct ablkcipher_request *req,
 		bytes = chcr_sg_ent_in_wr(req->src, req->dst, 0,
 					  CIP_SPACE_LEFT(ablkctx->enckey_len),
 					  0, 0);
-		if ((bytes + reqctx->processed) >= req->nbytes)
-			bytes  = req->nbytes - reqctx->processed;
+		if ((bytes + reqctx->processed) >= req->cryptlen)
+			bytes  = req->cryptlen - reqctx->processed;
 		else
 			bytes = rounddown(bytes, 16);
 	} else {
-		bytes = req->nbytes;
+		bytes = req->cryptlen;
 	}
-	if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
+	if (get_cryptoalg_subtype(tfm) ==
 	    CRYPTO_ALG_SUB_TYPE_CTR) {
-		bytes = adjust_ctr_overflow(req->info, bytes);
+		bytes = adjust_ctr_overflow(req->iv, bytes);
 	}
-	if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
+	if (get_cryptoalg_subtype(tfm) ==
 	    CRYPTO_ALG_SUB_TYPE_CTR_RFC3686) {
 		memcpy(reqctx->iv, ablkctx->nonce, CTR_RFC3686_NONCE_SIZE);
-		memcpy(reqctx->iv + CTR_RFC3686_NONCE_SIZE, req->info,
+		memcpy(reqctx->iv + CTR_RFC3686_NONCE_SIZE, req->iv,
 				CTR_RFC3686_IV_SIZE);
 
 		/* initialize counter portion of counter block */
@@ -1259,7 +1259,7 @@ static int process_cipher(struct ablkcipher_request *req,
 
 	} else {
 
-		memcpy(reqctx->iv, req->info, IV);
+		memcpy(reqctx->iv, req->iv, IV);
 	}
 	if (unlikely(bytes == 0)) {
 		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
@@ -1268,7 +1268,7 @@ static int process_cipher(struct ablkcipher_request *req,
 					   req->base.flags,
 					   req->src,
 					   req->dst,
-					   req->nbytes,
+					   req->cryptlen,
 					   reqctx->iv,
 					   op_type);
 		goto error;
@@ -1296,9 +1296,9 @@ error:
 	return err;
 }
 
-static int chcr_aes_encrypt(struct ablkcipher_request *req)
+static int chcr_aes_encrypt(struct skcipher_request *req)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct chcr_dev *dev = c_ctx(tfm)->dev;
 	struct sk_buff *skb = NULL;
 	int err, isfull = 0;
@@ -1329,9 +1329,9 @@ error:
 	return err;
 }
 
-static int chcr_aes_decrypt(struct ablkcipher_request *req)
+static int chcr_aes_decrypt(struct skcipher_request *req)
 {
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
 	struct chcr_dev *dev = c_ctx(tfm)->dev;
 	struct sk_buff *skb = NULL;
@@ -1398,27 +1398,28 @@ out:
 	return err;
 }
 
-static int chcr_cra_init(struct crypto_tfm *tfm)
+static int chcr_init_tfm(struct crypto_skcipher *tfm)
 {
-	struct crypto_alg *alg = tfm->__crt_alg;
-	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct chcr_context *ctx = crypto_skcipher_ctx(tfm);
 	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
 
-	ablkctx->sw_cipher = crypto_alloc_sync_skcipher(alg->cra_name, 0,
+	ablkctx->sw_cipher = crypto_alloc_sync_skcipher(alg->base.cra_name, 0,
 				CRYPTO_ALG_NEED_FALLBACK);
 	if (IS_ERR(ablkctx->sw_cipher)) {
-		pr_err("failed to allocate fallback for %s\n", alg->cra_name);
+		pr_err("failed to allocate fallback for %s\n", alg->base.cra_name);
 		return PTR_ERR(ablkctx->sw_cipher);
 	}
 
-	tfm->crt_ablkcipher.reqsize =  sizeof(struct chcr_blkcipher_req_ctx);
-	return chcr_device_init(crypto_tfm_ctx(tfm));
+	crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx));
+
+	return chcr_device_init(ctx);
 }
 
-static int chcr_rfc3686_init(struct crypto_tfm *tfm)
+static int chcr_rfc3686_init(struct crypto_skcipher *tfm)
 {
-	struct crypto_alg *alg = tfm->__crt_alg;
-	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
+	struct skcipher_alg *alg = crypto_skcipher_alg(tfm);
+	struct chcr_context *ctx = crypto_skcipher_ctx(tfm);
 	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
 
 	/*RFC3686 initialises IV counter value to 1, rfc3686(ctr(aes))
@@ -1427,17 +1428,17 @@ static int chcr_rfc3686_init(struct crypto_tfm *tfm)
 	ablkctx->sw_cipher = crypto_alloc_sync_skcipher("ctr(aes)", 0,
 				CRYPTO_ALG_NEED_FALLBACK);
 	if (IS_ERR(ablkctx->sw_cipher)) {
-		pr_err("failed to allocate fallback for %s\n", alg->cra_name);
+		pr_err("failed to allocate fallback for %s\n", alg->base.cra_name);
 		return PTR_ERR(ablkctx->sw_cipher);
 	}
-	tfm->crt_ablkcipher.reqsize =  sizeof(struct chcr_blkcipher_req_ctx);
-	return chcr_device_init(crypto_tfm_ctx(tfm));
+	crypto_skcipher_set_reqsize(tfm, sizeof(struct chcr_skcipher_req_ctx));
+	return chcr_device_init(ctx);
 }
 
 
-static void chcr_cra_exit(struct crypto_tfm *tfm)
+static void chcr_exit_tfm(struct crypto_skcipher *tfm)
 {
-	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
+	struct chcr_context *ctx = crypto_skcipher_ctx(tfm);
 	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
 
 	crypto_free_sync_skcipher(ablkctx->sw_cipher);
@@ -2056,8 +2057,8 @@ int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input,
 		err = chcr_handle_aead_resp(aead_request_cast(req), input, err);
 		break;
 
-	case CRYPTO_ALG_TYPE_ABLKCIPHER:
-		 chcr_handle_cipher_resp(ablkcipher_request_cast(req),
+	case CRYPTO_ALG_TYPE_SKCIPHER:
+		 chcr_handle_cipher_resp(skcipher_request_cast(req),
 					       input, err);
 		break;
 	case CRYPTO_ALG_TYPE_AHASH:
@@ -2148,7 +2149,7 @@ out:
 	return err;
 }
 
-static int chcr_aes_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int chcr_aes_xts_setkey(struct crypto_skcipher *cipher, const u8 *key,
 			       unsigned int key_len)
 {
 	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
@@ -2172,7 +2173,7 @@ static int chcr_aes_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 	ablkctx->ciph_mode = CHCR_SCMD_CIPHER_MODE_AES_XTS;
 	return 0;
 badkey_err:
-	crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+	crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 	ablkctx->enckey_len = 0;
 
 	return err;
@@ -2576,12 +2577,12 @@ void chcr_add_aead_dst_ent(struct aead_request *req,
 	dsgl_walk_end(&dsgl_walk, qid, ctx->pci_chan_id);
 }
 
-void chcr_add_cipher_src_ent(struct ablkcipher_request *req,
+void chcr_add_cipher_src_ent(struct skcipher_request *req,
 			     void *ulptx,
 			     struct  cipher_wr_param *wrparam)
 {
 	struct ulptx_walk ulp_walk;
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
 	u8 *buf = ulptx;
 
 	memcpy(buf, reqctx->iv, IV);
@@ -2599,13 +2600,13 @@ void chcr_add_cipher_src_ent(struct ablkcipher_request *req,
 	}
 }
 
-void chcr_add_cipher_dst_ent(struct ablkcipher_request *req,
+void chcr_add_cipher_dst_ent(struct skcipher_request *req,
 			     struct cpl_rx_phys_dsgl *phys_cpl,
 			     struct  cipher_wr_param *wrparam,
 			     unsigned short qid)
 {
-	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(wrparam->req);
+	struct chcr_skcipher_req_ctx *reqctx = skcipher_request_ctx(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(wrparam->req);
 	struct chcr_context *ctx = c_ctx(tfm);
 	struct dsgl_walk dsgl_walk;
 
@@ -2680,7 +2681,7 @@ void chcr_hash_dma_unmap(struct device *dev,
 }
 
 int chcr_cipher_dma_map(struct device *dev,
-			struct ablkcipher_request *req)
+			struct skcipher_request *req)
 {
 	int error;
 
@@ -2709,7 +2710,7 @@ err:
 }
 
 void chcr_cipher_dma_unmap(struct device *dev,
-			   struct ablkcipher_request *req)
+			   struct skcipher_request *req)
 {
 	if (req->src == req->dst) {
 		dma_unmap_sg(dev, req->src, sg_nents(req->src),
@@ -3712,82 +3713,76 @@ static int chcr_aead_decrypt(struct aead_request *req)
 static struct chcr_alg_template driver_algs[] = {
 	/* AES-CBC */
 	{
-		.type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_SUB_TYPE_CBC,
+		.type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_CBC,
 		.is_registered = 0,
-		.alg.crypto = {
-			.cra_name		= "cbc(aes)",
-			.cra_driver_name	= "cbc-aes-chcr",
-			.cra_blocksize		= AES_BLOCK_SIZE,
-			.cra_init		= chcr_cra_init,
-			.cra_exit		= chcr_cra_exit,
-			.cra_u.ablkcipher	= {
-				.min_keysize	= AES_MIN_KEY_SIZE,
-				.max_keysize	= AES_MAX_KEY_SIZE,
-				.ivsize		= AES_BLOCK_SIZE,
-				.setkey			= chcr_aes_cbc_setkey,
-				.encrypt		= chcr_aes_encrypt,
-				.decrypt		= chcr_aes_decrypt,
+		.alg.skcipher = {
+			.base.cra_name		= "cbc(aes)",
+			.base.cra_driver_name	= "cbc-aes-chcr",
+			.base.cra_blocksize	= AES_BLOCK_SIZE,
+
+			.init			= chcr_init_tfm,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= AES_MIN_KEY_SIZE,
+			.max_keysize		= AES_MAX_KEY_SIZE,
+			.ivsize			= AES_BLOCK_SIZE,
+			.setkey			= chcr_aes_cbc_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
 			}
-		}
 	},
 	{
-		.type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_SUB_TYPE_XTS,
+		.type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_XTS,
 		.is_registered = 0,
-		.alg.crypto =   {
-			.cra_name		= "xts(aes)",
-			.cra_driver_name	= "xts-aes-chcr",
-			.cra_blocksize		= AES_BLOCK_SIZE,
-			.cra_init		= chcr_cra_init,
-			.cra_exit		= NULL,
-			.cra_u .ablkcipher = {
-					.min_keysize	= 2 * AES_MIN_KEY_SIZE,
-					.max_keysize	= 2 * AES_MAX_KEY_SIZE,
-					.ivsize		= AES_BLOCK_SIZE,
-					.setkey		= chcr_aes_xts_setkey,
-					.encrypt	= chcr_aes_encrypt,
-					.decrypt	= chcr_aes_decrypt,
-				}
+		.alg.skcipher = {
+			.base.cra_name		= "xts(aes)",
+			.base.cra_driver_name	= "xts-aes-chcr",
+			.base.cra_blocksize	= AES_BLOCK_SIZE,
+
+			.init			= chcr_init_tfm,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= 2 * AES_MIN_KEY_SIZE,
+			.max_keysize		= 2 * AES_MAX_KEY_SIZE,
+			.ivsize			= AES_BLOCK_SIZE,
+			.setkey			= chcr_aes_xts_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
 			}
 	},
 	{
-		.type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_SUB_TYPE_CTR,
+		.type = CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_SUB_TYPE_CTR,
 		.is_registered = 0,
-		.alg.crypto = {
-			.cra_name		= "ctr(aes)",
-			.cra_driver_name	= "ctr-aes-chcr",
-			.cra_blocksize		= 1,
-			.cra_init		= chcr_cra_init,
-			.cra_exit		= chcr_cra_exit,
-			.cra_u.ablkcipher	= {
-				.min_keysize	= AES_MIN_KEY_SIZE,
-				.max_keysize	= AES_MAX_KEY_SIZE,
-				.ivsize		= AES_BLOCK_SIZE,
-				.setkey		= chcr_aes_ctr_setkey,
-				.encrypt	= chcr_aes_encrypt,
-				.decrypt	= chcr_aes_decrypt,
-			}
+		.alg.skcipher = {
+			.base.cra_name		= "ctr(aes)",
+			.base.cra_driver_name	= "ctr-aes-chcr",
+			.base.cra_blocksize	= 1,
+
+			.init			= chcr_init_tfm,
+			.exit			= chcr_exit_tfm,
+			.min_keysize		= AES_MIN_KEY_SIZE,
+			.max_keysize		= AES_MAX_KEY_SIZE,
+			.ivsize			= AES_BLOCK_SIZE,
+			.setkey			= chcr_aes_ctr_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
 		}
 	},
 	{
-		.type = CRYPTO_ALG_TYPE_ABLKCIPHER |
+		.type = CRYPTO_ALG_TYPE_SKCIPHER |
 			CRYPTO_ALG_SUB_TYPE_CTR_RFC3686,
 		.is_registered = 0,
-		.alg.crypto = {
-			.cra_name		= "rfc3686(ctr(aes))",
-			.cra_driver_name	= "rfc3686-ctr-aes-chcr",
-			.cra_blocksize		= 1,
-			.cra_init		= chcr_rfc3686_init,
-			.cra_exit		= chcr_cra_exit,
-			.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		= chcr_aes_rfc3686_setkey,
-				.encrypt	= chcr_aes_encrypt,
-				.decrypt	= chcr_aes_decrypt,
-			}
+		.alg.skcipher = {
+			.base.cra_name		= "rfc3686(ctr(aes))",
+			.base.cra_driver_name	= "rfc3686-ctr-aes-chcr",
+			.base.cra_blocksize	= 1,
+
+			.init			= chcr_rfc3686_init,
+			.exit			= chcr_exit_tfm,
+			.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			= chcr_aes_rfc3686_setkey,
+			.encrypt		= chcr_aes_encrypt,
+			.decrypt		= chcr_aes_decrypt,
 		}
 	},
 	/* SHA */
@@ -4254,10 +4249,10 @@ static int chcr_unregister_alg(void)
 
 	for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
 		switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) {
-		case CRYPTO_ALG_TYPE_ABLKCIPHER:
+		case CRYPTO_ALG_TYPE_SKCIPHER:
 			if (driver_algs[i].is_registered)
-				crypto_unregister_alg(
-						&driver_algs[i].alg.crypto);
+				crypto_unregister_skcipher(
+						&driver_algs[i].alg.skcipher);
 			break;
 		case CRYPTO_ALG_TYPE_AEAD:
 			if (driver_algs[i].is_registered)
@@ -4293,21 +4288,20 @@ static int chcr_register_alg(void)
 		if (driver_algs[i].is_registered)
 			continue;
 		switch (driver_algs[i].type & CRYPTO_ALG_TYPE_MASK) {
-		case CRYPTO_ALG_TYPE_ABLKCIPHER:
-			driver_algs[i].alg.crypto.cra_priority =
+		case CRYPTO_ALG_TYPE_SKCIPHER:
+			driver_algs[i].alg.skcipher.base.cra_priority =
 				CHCR_CRA_PRIORITY;
-			driver_algs[i].alg.crypto.cra_module = THIS_MODULE;
-			driver_algs[i].alg.crypto.cra_flags =
-				CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC |
+			driver_algs[i].alg.skcipher.base.cra_module = THIS_MODULE;
+			driver_algs[i].alg.skcipher.base.cra_flags =
+				CRYPTO_ALG_TYPE_SKCIPHER | CRYPTO_ALG_ASYNC |
 				CRYPTO_ALG_NEED_FALLBACK;
-			driver_algs[i].alg.crypto.cra_ctxsize =
+			driver_algs[i].alg.skcipher.base.cra_ctxsize =
 				sizeof(struct chcr_context) +
 				sizeof(struct ablk_ctx);
-			driver_algs[i].alg.crypto.cra_alignmask = 0;
-			driver_algs[i].alg.crypto.cra_type =
-				&crypto_ablkcipher_type;
-			err = crypto_register_alg(&driver_algs[i].alg.crypto);
-			name = driver_algs[i].alg.crypto.cra_driver_name;
+			driver_algs[i].alg.skcipher.base.cra_alignmask = 0;
+
+			err = crypto_register_skcipher(&driver_algs[i].alg.skcipher);
+			name = driver_algs[i].alg.skcipher.base.cra_driver_name;
 			break;
 		case CRYPTO_ALG_TYPE_AEAD:
 			driver_algs[i].alg.aead.base.cra_flags =