Commit f3f935a7 authored by Jussi Kivilinna's avatar Jussi Kivilinna Committed by Herbert Xu
Browse files

crypto: camellia - add AVX2/AES-NI/x86_64 assembler implementation of camellia cipher 



Patch adds AVX2/AES-NI/x86-64 implementation of Camellia cipher, requiring
32 parallel blocks for input (512 bytes). Compared to AVX implementation, this
version is extended to use the 256-bit wide YMM registers. For AES-NI
instructions data is split to two 128-bit registers and merged afterwards.
Even with this additional handling, performance should be higher compared
to the AES-NI/AVX implementation.

Signed-off-by: default avatarJussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 56d76c96

arch/x86/crypto/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ endif 
# These modules require assembler to support AVX2.

ifeq ($(avx2_supported),yes)

	obj-$(CONFIG_CRYPTO_BLOWFISH_AVX2_X86_64) += blowfish-avx2.o

	obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o

	obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o

	obj-$(CONFIG_CRYPTO_TWOFISH_AVX2_X86_64) += twofish-avx2.o

endif
@@ -73,6 +74,7 @@ endif 


ifeq ($(avx2_supported),yes)

	blowfish-avx2-y := blowfish-avx2-asm_64.o blowfish_avx2_glue.o

	camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o

	serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o

	twofish-avx2-y := twofish-avx2-asm_64.o twofish_avx2_glue.o

endif

arch/x86/crypto/camellia-aesni-avx2-asm_64.S

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+1368 −0

File added.

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arch/x86/crypto/camellia_aesni_avx2_glue.c

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/*

 * Glue Code for x86_64/AVX2/AES-NI assembler optimized version of Camellia

 *

 * Copyright © 2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 2 of the License, or

 * (at your option) any later version.

 *

 */



#include <linux/module.h>

#include <linux/types.h>

#include <linux/crypto.h>

#include <linux/err.h>

#include <crypto/algapi.h>

#include <crypto/ctr.h>

#include <crypto/lrw.h>

#include <crypto/xts.h>

#include <asm/xcr.h>

#include <asm/xsave.h>

#include <asm/crypto/camellia.h>

#include <asm/crypto/ablk_helper.h>

#include <asm/crypto/glue_helper.h>



#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16

#define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32



/* 32-way AVX2/AES-NI parallel cipher functions */

asmlinkage void camellia_ecb_enc_32way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

asmlinkage void camellia_ecb_dec_32way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);



asmlinkage void camellia_cbc_dec_32way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

asmlinkage void camellia_ctr_32way(struct camellia_ctx *ctx, u8 *dst,

				   const u8 *src, le128 *iv);



asmlinkage void camellia_xts_enc_32way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src, le128 *iv);

asmlinkage void camellia_xts_dec_32way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src, le128 *iv);



static const struct common_glue_ctx camellia_enc = {

	.num_funcs = 4,

	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,



	.funcs = { {

		.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_32way) }

	}, {

		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_enc_16way) }

	}, {

		.num_blocks = 2,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk_2way) }

	}, {

		.num_blocks = 1,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_enc_blk) }

	} }

};



static const struct common_glue_ctx camellia_ctr = {

	.num_funcs = 4,

	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,



	.funcs = { {

		.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,

		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_32way) }

	}, {

		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,

		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_ctr_16way) }

	}, {

		.num_blocks = 2,

		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr_2way) }

	}, {

		.num_blocks = 1,

		.fn_u = { .ctr = GLUE_CTR_FUNC_CAST(camellia_crypt_ctr) }

	} }

};



static const struct common_glue_ctx camellia_enc_xts = {

	.num_funcs = 3,

	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,



	.funcs = { {

		.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,

		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_32way) }

	}, {

		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,

		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc_16way) }

	}, {

		.num_blocks = 1,

		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_enc) }

	} }

};



static const struct common_glue_ctx camellia_dec = {

	.num_funcs = 4,

	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,



	.funcs = { {

		.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_32way) }

	}, {

		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_ecb_dec_16way) }

	}, {

		.num_blocks = 2,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk_2way) }

	}, {

		.num_blocks = 1,

		.fn_u = { .ecb = GLUE_FUNC_CAST(camellia_dec_blk) }

	} }

};



static const struct common_glue_ctx camellia_dec_cbc = {

	.num_funcs = 4,

	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,



	.funcs = { {

		.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,

		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_32way) }

	}, {

		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,

		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_cbc_dec_16way) }

	}, {

		.num_blocks = 2,

		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_decrypt_cbc_2way) }

	}, {

		.num_blocks = 1,

		.fn_u = { .cbc = GLUE_CBC_FUNC_CAST(camellia_dec_blk) }

	} }

};



static const struct common_glue_ctx camellia_dec_xts = {

	.num_funcs = 3,

	.fpu_blocks_limit = CAMELLIA_AESNI_PARALLEL_BLOCKS,



	.funcs = { {

		.num_blocks = CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS,

		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_32way) }

	}, {

		.num_blocks = CAMELLIA_AESNI_PARALLEL_BLOCKS,

		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec_16way) }

	}, {

		.num_blocks = 1,

		.fn_u = { .xts = GLUE_XTS_FUNC_CAST(camellia_xts_dec) }

	} }

};



static int ecb_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	return glue_ecb_crypt_128bit(&camellia_enc, desc, dst, src, nbytes);

}



static int ecb_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	return glue_ecb_crypt_128bit(&camellia_dec, desc, dst, src, nbytes);

}



static int cbc_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	return glue_cbc_encrypt_128bit(GLUE_FUNC_CAST(camellia_enc_blk), desc,

				       dst, src, nbytes);

}



static int cbc_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	return glue_cbc_decrypt_128bit(&camellia_dec_cbc, desc, dst, src,

				       nbytes);

}



static int ctr_crypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		     struct scatterlist *src, unsigned int nbytes)

{

	return glue_ctr_crypt_128bit(&camellia_ctr, desc, dst, src, nbytes);

}



static inline bool camellia_fpu_begin(bool fpu_enabled, unsigned int nbytes)

{

	return glue_fpu_begin(CAMELLIA_BLOCK_SIZE,

			      CAMELLIA_AESNI_PARALLEL_BLOCKS, NULL, fpu_enabled,

			      nbytes);

}



static inline void camellia_fpu_end(bool fpu_enabled)

{

	glue_fpu_end(fpu_enabled);

}



static int camellia_setkey(struct crypto_tfm *tfm, const u8 *in_key,

			   unsigned int key_len)

{

	return __camellia_setkey(crypto_tfm_ctx(tfm), in_key, key_len,

				 &tfm->crt_flags);

}



struct crypt_priv {

	struct camellia_ctx *ctx;

	bool fpu_enabled;

};



static void encrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)

{

	const unsigned int bsize = CAMELLIA_BLOCK_SIZE;

	struct crypt_priv *ctx = priv;

	int i;



	ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);



	if (nbytes >= CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS * bsize) {

		camellia_ecb_enc_32way(ctx->ctx, srcdst, srcdst);

		srcdst += bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS;

		nbytes -= bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS;

	}



	if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {

		camellia_ecb_enc_16way(ctx->ctx, srcdst, srcdst);

		srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;

		nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;

	}



	while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {

		camellia_enc_blk_2way(ctx->ctx, srcdst, srcdst);

		srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;

		nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;

	}



	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)

		camellia_enc_blk(ctx->ctx, srcdst, srcdst);

}



static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)

{

	const unsigned int bsize = CAMELLIA_BLOCK_SIZE;

	struct crypt_priv *ctx = priv;

	int i;



	ctx->fpu_enabled = camellia_fpu_begin(ctx->fpu_enabled, nbytes);



	if (nbytes >= CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS * bsize) {

		camellia_ecb_dec_32way(ctx->ctx, srcdst, srcdst);

		srcdst += bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS;

		nbytes -= bsize * CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS;

	}



	if (nbytes >= CAMELLIA_AESNI_PARALLEL_BLOCKS * bsize) {

		camellia_ecb_dec_16way(ctx->ctx, srcdst, srcdst);

		srcdst += bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;

		nbytes -= bsize * CAMELLIA_AESNI_PARALLEL_BLOCKS;

	}



	while (nbytes >= CAMELLIA_PARALLEL_BLOCKS * bsize) {

		camellia_dec_blk_2way(ctx->ctx, srcdst, srcdst);

		srcdst += bsize * CAMELLIA_PARALLEL_BLOCKS;

		nbytes -= bsize * CAMELLIA_PARALLEL_BLOCKS;

	}



	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)

		camellia_dec_blk(ctx->ctx, srcdst, srcdst);

}



static int lrw_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	be128 buf[CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS];

	struct crypt_priv crypt_ctx = {

		.ctx = &ctx->camellia_ctx,

		.fpu_enabled = false,

	};

	struct lrw_crypt_req req = {

		.tbuf = buf,

		.tbuflen = sizeof(buf),



		.table_ctx = &ctx->lrw_table,

		.crypt_ctx = &crypt_ctx,

		.crypt_fn = encrypt_callback,

	};

	int ret;



	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;

	ret = lrw_crypt(desc, dst, src, nbytes, &req);

	camellia_fpu_end(crypt_ctx.fpu_enabled);



	return ret;

}



static int lrw_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	struct camellia_lrw_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);

	be128 buf[CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS];

	struct crypt_priv crypt_ctx = {

		.ctx = &ctx->camellia_ctx,

		.fpu_enabled = false,

	};

	struct lrw_crypt_req req = {

		.tbuf = buf,

		.tbuflen = sizeof(buf),



		.table_ctx = &ctx->lrw_table,

		.crypt_ctx = &crypt_ctx,

		.crypt_fn = decrypt_callback,

	};

	int ret;



	desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;

	ret = lrw_crypt(desc, dst, src, nbytes, &req);

	camellia_fpu_end(crypt_ctx.fpu_enabled);



	return ret;

}



static int xts_encrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);



	return glue_xts_crypt_128bit(&camellia_enc_xts, desc, dst, src, nbytes,

				     XTS_TWEAK_CAST(camellia_enc_blk),

				     &ctx->tweak_ctx, &ctx->crypt_ctx);

}



static int xts_decrypt(struct blkcipher_desc *desc, struct scatterlist *dst,

		       struct scatterlist *src, unsigned int nbytes)

{

	struct camellia_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);



	return glue_xts_crypt_128bit(&camellia_dec_xts, desc, dst, src, nbytes,

				     XTS_TWEAK_CAST(camellia_enc_blk),

				     &ctx->tweak_ctx, &ctx->crypt_ctx);

}



static struct crypto_alg cmll_algs[10] = { {

	.cra_name		= "__ecb-camellia-aesni-avx2",

	.cra_driver_name	= "__driver-ecb-camellia-aesni-avx2",

	.cra_priority		= 0,

	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct camellia_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_blkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_u = {

		.blkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,

			.setkey		= camellia_setkey,

			.encrypt	= ecb_encrypt,

			.decrypt	= ecb_decrypt,

		},

	},

}, {

	.cra_name		= "__cbc-camellia-aesni-avx2",

	.cra_driver_name	= "__driver-cbc-camellia-aesni-avx2",

	.cra_priority		= 0,

	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct camellia_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_blkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_u = {

		.blkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,

			.setkey		= camellia_setkey,

			.encrypt	= cbc_encrypt,

			.decrypt	= cbc_decrypt,

		},

	},

}, {

	.cra_name		= "__ctr-camellia-aesni-avx2",

	.cra_driver_name	= "__driver-ctr-camellia-aesni-avx2",

	.cra_priority		= 0,

	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,

	.cra_blocksize		= 1,

	.cra_ctxsize		= sizeof(struct camellia_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_blkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_u = {

		.blkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= camellia_setkey,

			.encrypt	= ctr_crypt,

			.decrypt	= ctr_crypt,

		},

	},

}, {

	.cra_name		= "__lrw-camellia-aesni-avx2",

	.cra_driver_name	= "__driver-lrw-camellia-aesni-avx2",

	.cra_priority		= 0,

	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct camellia_lrw_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_blkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_exit		= lrw_camellia_exit_tfm,

	.cra_u = {

		.blkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE +

					  CAMELLIA_BLOCK_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE +

					  CAMELLIA_BLOCK_SIZE,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= lrw_camellia_setkey,

			.encrypt	= lrw_encrypt,

			.decrypt	= lrw_decrypt,

		},

	},

}, {

	.cra_name		= "__xts-camellia-aesni-avx2",

	.cra_driver_name	= "__driver-xts-camellia-aesni-avx2",

	.cra_priority		= 0,

	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct camellia_xts_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_blkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_u = {

		.blkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE * 2,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE * 2,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= xts_camellia_setkey,

			.encrypt	= xts_encrypt,

			.decrypt	= xts_decrypt,

		},

	},

}, {

	.cra_name		= "ecb(camellia)",

	.cra_driver_name	= "ecb-camellia-aesni-avx2",

	.cra_priority		= 500,

	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct async_helper_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_ablkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_init		= ablk_init,

	.cra_exit		= ablk_exit,

	.cra_u = {

		.ablkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,

			.setkey		= ablk_set_key,

			.encrypt	= ablk_encrypt,

			.decrypt	= ablk_decrypt,

		},

	},

}, {

	.cra_name		= "cbc(camellia)",

	.cra_driver_name	= "cbc-camellia-aesni-avx2",

	.cra_priority		= 500,

	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct async_helper_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_ablkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_init		= ablk_init,

	.cra_exit		= ablk_exit,

	.cra_u = {

		.ablkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= ablk_set_key,

			.encrypt	= __ablk_encrypt,

			.decrypt	= ablk_decrypt,

		},

	},

}, {

	.cra_name		= "ctr(camellia)",

	.cra_driver_name	= "ctr-camellia-aesni-avx2",

	.cra_priority		= 500,

	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,

	.cra_blocksize		= 1,

	.cra_ctxsize		= sizeof(struct async_helper_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_ablkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_init		= ablk_init,

	.cra_exit		= ablk_exit,

	.cra_u = {

		.ablkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= ablk_set_key,

			.encrypt	= ablk_encrypt,

			.decrypt	= ablk_encrypt,

			.geniv		= "chainiv",

		},

	},

}, {

	.cra_name		= "lrw(camellia)",

	.cra_driver_name	= "lrw-camellia-aesni-avx2",

	.cra_priority		= 500,

	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct async_helper_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_ablkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_init		= ablk_init,

	.cra_exit		= ablk_exit,

	.cra_u = {

		.ablkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE +

					  CAMELLIA_BLOCK_SIZE,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE +

					  CAMELLIA_BLOCK_SIZE,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= ablk_set_key,

			.encrypt	= ablk_encrypt,

			.decrypt	= ablk_decrypt,

		},

	},

}, {

	.cra_name		= "xts(camellia)",

	.cra_driver_name	= "xts-camellia-aesni-avx2",

	.cra_priority		= 500,

	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,

	.cra_blocksize		= CAMELLIA_BLOCK_SIZE,

	.cra_ctxsize		= sizeof(struct async_helper_ctx),

	.cra_alignmask		= 0,

	.cra_type		= &crypto_ablkcipher_type,

	.cra_module		= THIS_MODULE,

	.cra_init		= ablk_init,

	.cra_exit		= ablk_exit,

	.cra_u = {

		.ablkcipher = {

			.min_keysize	= CAMELLIA_MIN_KEY_SIZE * 2,

			.max_keysize	= CAMELLIA_MAX_KEY_SIZE * 2,

			.ivsize		= CAMELLIA_BLOCK_SIZE,

			.setkey		= ablk_set_key,

			.encrypt	= ablk_encrypt,

			.decrypt	= ablk_decrypt,

		},

	},

} };



static int __init camellia_aesni_init(void)

{

	u64 xcr0;



	if (!cpu_has_avx2 || !cpu_has_avx || !cpu_has_aes || !cpu_has_osxsave) {

		pr_info("AVX2 or AES-NI instructions are not detected.\n");

		return -ENODEV;

	}



	xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK);

	if ((xcr0 & (XSTATE_SSE | XSTATE_YMM)) != (XSTATE_SSE | XSTATE_YMM)) {

		pr_info("AVX2 detected but unusable.\n");

		return -ENODEV;

	}



	return crypto_register_algs(cmll_algs, ARRAY_SIZE(cmll_algs));

}



static void __exit camellia_aesni_fini(void)

{

	crypto_unregister_algs(cmll_algs, ARRAY_SIZE(cmll_algs));

}



module_init(camellia_aesni_init);

module_exit(camellia_aesni_fini);



MODULE_LICENSE("GPL");

MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX2 optimized");

MODULE_ALIAS("camellia");

MODULE_ALIAS("camellia-asm");

arch/x86/crypto/camellia_aesni_avx_glue.c

+14 −3
Original line number Diff line number Diff line
@@ -26,33 +26,44 @@ 


#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16



/* 16-way AES-NI parallel cipher functions */

/* 16-way parallel cipher functions (avx/aes-ni) */

asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);



asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);



asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);



asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,

				   const u8 *src, le128 *iv);

EXPORT_SYMBOL_GPL(camellia_ctr_16way);



asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src, le128 *iv);

EXPORT_SYMBOL_GPL(camellia_xts_enc_16way);



asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src, le128 *iv);

EXPORT_SYMBOL_GPL(camellia_xts_dec_16way);



static void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)

void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv)

{

	glue_xts_crypt_128bit_one(ctx, dst, src, iv,

				  GLUE_FUNC_CAST(camellia_enc_blk));

}

EXPORT_SYMBOL_GPL(camellia_xts_enc);



static void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)

void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv)

{

	glue_xts_crypt_128bit_one(ctx, dst, src, iv,

				  GLUE_FUNC_CAST(camellia_dec_blk));

}

EXPORT_SYMBOL_GPL(camellia_xts_dec);



static const struct common_glue_ctx camellia_enc = {

	.num_funcs = 3,

arch/x86/include/asm/crypto/camellia.h

+19 −0
Original line number Diff line number Diff line
@@ -48,6 +48,22 @@ asmlinkage void __camellia_enc_blk_2way(struct camellia_ctx *ctx, u8 *dst, 
asmlinkage void camellia_dec_blk_2way(struct camellia_ctx *ctx, u8 *dst,

				      const u8 *src);



/* 16-way parallel cipher functions (avx/aes-ni) */

asmlinkage void camellia_ecb_enc_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

asmlinkage void camellia_ecb_dec_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);



asmlinkage void camellia_cbc_dec_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src);

asmlinkage void camellia_ctr_16way(struct camellia_ctx *ctx, u8 *dst,

				   const u8 *src, le128 *iv);



asmlinkage void camellia_xts_enc_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src, le128 *iv);

asmlinkage void camellia_xts_dec_16way(struct camellia_ctx *ctx, u8 *dst,

				       const u8 *src, le128 *iv);



static inline void camellia_enc_blk(struct camellia_ctx *ctx, u8 *dst,

				    const u8 *src)

{
@@ -79,4 +95,7 @@ extern void camellia_crypt_ctr(void *ctx, u128 *dst, const u128 *src, 
extern void camellia_crypt_ctr_2way(void *ctx, u128 *dst, const u128 *src,

				    le128 *iv);



extern void camellia_xts_enc(void *ctx, u128 *dst, const u128 *src, le128 *iv);

extern void camellia_xts_dec(void *ctx, u128 *dst, const u128 *src, le128 *iv);



#endif /* ASM_X86_CAMELLIA_H */

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